Merge 4.19.207 into android-4.19-stable
Changes in 4.19.207
ext4: fix race writing to an inline_data file while its xattrs are changing
xtensa: fix kconfig unmet dependency warning for HAVE_FUTEX_CMPXCHG
gpu: ipu-v3: Fix i.MX IPU-v3 offset calculations for (semi)planar U/V formats
qed: Fix the VF msix vectors flow
net: macb: Add a NULL check on desc_ptp
qede: Fix memset corruption
perf/x86/intel/pt: Fix mask of num_address_ranges
perf/x86/amd/ibs: Work around erratum #1197
cryptoloop: add a deprecation warning
ARM: 8918/2: only build return_address() if needed
ALSA: pcm: fix divide error in snd_pcm_lib_ioctl
clk: fix build warning for orphan_list
media: stkwebcam: fix memory leak in stk_camera_probe
ARM: imx: add missing clk_disable_unprepare()
ARM: imx: fix missing 3rd argument in macro imx_mmdc_perf_init
igmp: Add ip_mc_list lock in ip_check_mc_rcu
USB: serial: mos7720: improve OOM-handling in read_mos_reg()
ipv4/icmp: l3mdev: Perform icmp error route lookup on source device routing table (v2)
SUNRPC/nfs: Fix return value for nfs4_callback_compound()
crypto: talitos - reduce max key size for SEC1
powerpc/module64: Fix comment in R_PPC64_ENTRY handling
powerpc/boot: Delete unneeded .globl _zimage_start
net: ll_temac: Remove left-over debug message
mm/page_alloc: speed up the iteration of max_order
Revert "btrfs: compression: don't try to compress if we don't have enough pages"
ALSA: usb-audio: Add registration quirk for JBL Quantum 800
usb: host: xhci-rcar: Don't reload firmware after the completion
usb: mtu3: use @mult for HS isoc or intr
usb: mtu3: fix the wrong HS mult value
x86/reboot: Limit Dell Optiplex 990 quirk to early BIOS versions
PCI: Call Max Payload Size-related fixup quirks early
locking/mutex: Fix HANDOFF condition
regmap: fix the offset of register error log
crypto: mxs-dcp - Check for DMA mapping errors
sched/deadline: Fix reset_on_fork reporting of DL tasks
power: supply: axp288_fuel_gauge: Report register-address on readb / writeb errors
crypto: omap-sham - clear dma flags only after omap_sham_update_dma_stop()
sched/deadline: Fix missing clock update in migrate_task_rq_dl()
hrtimer: Avoid double reprogramming in __hrtimer_start_range_ns()
udf: Check LVID earlier
isofs: joliet: Fix iocharset=utf8 mount option
bcache: add proper error unwinding in bcache_device_init
nvme-rdma: don't update queue count when failing to set io queues
power: supply: max17042_battery: fix typo in MAx17042_TOFF
s390/cio: add dev_busid sysfs entry for each subchannel
libata: fix ata_host_start()
crypto: qat - do not ignore errors from enable_vf2pf_comms()
crypto: qat - handle both source of interrupt in VF ISR
crypto: qat - fix reuse of completion variable
crypto: qat - fix naming for init/shutdown VF to PF notifications
crypto: qat - do not export adf_iov_putmsg()
fcntl: fix potential deadlock for &fasync_struct.fa_lock
udf_get_extendedattr() had no boundary checks.
m68k: emu: Fix invalid free in nfeth_cleanup()
spi: spi-fsl-dspi: Fix issue with uninitialized dma_slave_config
spi: spi-pic32: Fix issue with uninitialized dma_slave_config
lib/mpi: use kcalloc in mpi_resize
clocksource/drivers/sh_cmt: Fix wrong setting if don't request IRQ for clock source channel
crypto: qat - use proper type for vf_mask
certs: Trigger creation of RSA module signing key if it's not an RSA key
spi: sprd: Fix the wrong WDG_LOAD_VAL
media: TDA1997x: enable EDID support
soc: rockchip: ROCKCHIP_GRF should not default to y, unconditionally
media: dvb-usb: fix uninit-value in dvb_usb_adapter_dvb_init
media: dvb-usb: fix uninit-value in vp702x_read_mac_addr
media: go7007: remove redundant initialization
Bluetooth: sco: prevent information leak in sco_conn_defer_accept()
tcp: seq_file: Avoid skipping sk during tcp_seek_last_pos
net: cipso: fix warnings in netlbl_cipsov4_add_std
i2c: highlander: add IRQ check
media: em28xx-input: fix refcount bug in em28xx_usb_disconnect
media: venus: venc: Fix potential null pointer dereference on pointer fmt
PCI: PM: Avoid forcing PCI_D0 for wakeup reasons inconsistently
PCI: PM: Enable PME if it can be signaled from D3cold
soc: qcom: smsm: Fix missed interrupts if state changes while masked
Bluetooth: increase BTNAMSIZ to 21 chars to fix potential buffer overflow
drm/msm/dpu: make dpu_hw_ctl_clear_all_blendstages clear necessary LMs
arm64: dts: exynos: correct GIC CPU interfaces address range on Exynos7
Bluetooth: fix repeated calls to sco_sock_kill
drm/msm/dsi: Fix some reference counted resource leaks
usb: gadget: udc: at91: add IRQ check
usb: phy: fsl-usb: add IRQ check
usb: phy: twl6030: add IRQ checks
Bluetooth: Move shutdown callback before flushing tx and rx queue
usb: host: ohci-tmio: add IRQ check
usb: phy: tahvo: add IRQ check
mac80211: Fix insufficient headroom issue for AMSDU
usb: gadget: mv_u3d: request_irq() after initializing UDC
Bluetooth: add timeout sanity check to hci_inquiry
i2c: iop3xx: fix deferred probing
i2c: s3c2410: fix IRQ check
mmc: dw_mmc: Fix issue with uninitialized dma_slave_config
mmc: moxart: Fix issue with uninitialized dma_slave_config
CIFS: Fix a potencially linear read overflow
i2c: mt65xx: fix IRQ check
usb: ehci-orion: Handle errors of clk_prepare_enable() in probe
usb: bdc: Fix an error handling path in 'bdc_probe()' when no suitable DMA config is available
tty: serial: fsl_lpuart: fix the wrong mapbase value
ath6kl: wmi: fix an error code in ath6kl_wmi_sync_point()
bcma: Fix memory leak for internally-handled cores
ipv4: make exception cache less predictible
net: sched: Fix qdisc_rate_table refcount leak when get tcf_block failed
net: qualcomm: fix QCA7000 checksum handling
ipv4: fix endianness issue in inet_rtm_getroute_build_skb()
netns: protect netns ID lookups with RCU
fscrypt: add fscrypt_symlink_getattr() for computing st_size
ext4: report correct st_size for encrypted symlinks
f2fs: report correct st_size for encrypted symlinks
ubifs: report correct st_size for encrypted symlinks
tty: Fix data race between tiocsti() and flush_to_ldisc()
x86/resctrl: Fix a maybe-uninitialized build warning treated as error
KVM: x86: Update vCPU's hv_clock before back to guest when tsc_offset is adjusted
IMA: remove -Wmissing-prototypes warning
IMA: remove the dependency on CRYPTO_MD5
fbmem: don't allow too huge resolutions
backlight: pwm_bl: Improve bootloader/kernel device handover
clk: kirkwood: Fix a clocking boot regression
rtc: tps65910: Correct driver module alias
btrfs: reset replace target device to allocation state on close
blk-zoned: allow zone management send operations without CAP_SYS_ADMIN
blk-zoned: allow BLKREPORTZONE without CAP_SYS_ADMIN
PCI/MSI: Skip masking MSI-X on Xen PV
powerpc/perf/hv-gpci: Fix counter value parsing
xen: fix setting of max_pfn in shared_info
include/linux/list.h: add a macro to test if entry is pointing to the head
9p/xen: Fix end of loop tests for list_for_each_entry
bpf/verifier: per-register parent pointers
bpf: correct slot_type marking logic to allow more stack slot sharing
bpf: Support variable offset stack access from helpers
bpf: Reject indirect var_off stack access in raw mode
bpf: Reject indirect var_off stack access in unpriv mode
bpf: Sanity check max value for var_off stack access
selftests/bpf: Test variable offset stack access
bpf: track spill/fill of constants
selftests/bpf: fix tests due to const spill/fill
bpf: Introduce BPF nospec instruction for mitigating Spectre v4
bpf: Fix leakage due to insufficient speculative store bypass mitigation
bpf: verifier: Allocate idmap scratch in verifier env
bpf: Fix pointer arithmetic mask tightening under state pruning
tools/thermal/tmon: Add cross compiling support
soc: aspeed: lpc-ctrl: Fix boundary check for mmap
arm64: head: avoid over-mapping in map_memory
crypto: public_key: fix overflow during implicit conversion
block: bfq: fix bfq_set_next_ioprio_data()
power: supply: max17042: handle fails of reading status register
dm crypt: Avoid percpu_counter spinlock contention in crypt_page_alloc()
VMCI: fix NULL pointer dereference when unmapping queue pair
media: uvc: don't do DMA on stack
media: rc-loopback: return number of emitters rather than error
libata: add ATA_HORKAGE_NO_NCQ_TRIM for Samsung 860 and 870 SSDs
ARM: 9105/1: atags_to_fdt: don't warn about stack size
PCI: Restrict ASMedia ASM1062 SATA Max Payload Size Supported
PCI: Return ~0 data on pciconfig_read() CAP_SYS_ADMIN failure
PCI: xilinx-nwl: Enable the clock through CCF
PCI: aardvark: Increase polling delay to 1.5s while waiting for PIO response
PCI: aardvark: Fix masking and unmasking legacy INTx interrupts
HID: input: do not report stylus battery state as "full"
RDMA/iwcm: Release resources if iw_cm module initialization fails
docs: Fix infiniband uverbs minor number
pinctrl: samsung: Fix pinctrl bank pin count
vfio: Use config not menuconfig for VFIO_NOIOMMU
powerpc/stacktrace: Include linux/delay.h
openrisc: don't printk() unconditionally
pinctrl: single: Fix error return code in pcs_parse_bits_in_pinctrl_entry()
scsi: qedi: Fix error codes in qedi_alloc_global_queues()
platform/x86: dell-smbios-wmi: Add missing kfree in error-exit from run_smbios_call
fscache: Fix cookie key hashing
f2fs: fix to account missing .skipped_gc_rwsem
f2fs: fix to unmap pages from userspace process in punch_hole()
MIPS: Malta: fix alignment of the devicetree buffer
userfaultfd: prevent concurrent API initialization
media: dib8000: rewrite the init prbs logic
crypto: mxs-dcp - Use sg_mapping_iter to copy data
PCI: Use pci_update_current_state() in pci_enable_device_flags()
tipc: keep the skb in rcv queue until the whole data is read
iio: dac: ad5624r: Fix incorrect handling of an optional regulator.
ARM: dts: qcom: apq8064: correct clock names
video: fbdev: kyro: fix a DoS bug by restricting user input
netlink: Deal with ESRCH error in nlmsg_notify()
Smack: Fix wrong semantics in smk_access_entry()
usb: host: fotg210: fix the endpoint's transactional opportunities calculation
usb: host: fotg210: fix the actual_length of an iso packet
usb: gadget: u_ether: fix a potential null pointer dereference
usb: gadget: composite: Allow bMaxPower=0 if self-powered
staging: board: Fix uninitialized spinlock when attaching genpd
tty: serial: jsm: hold port lock when reporting modem line changes
drm/amd/amdgpu: Update debugfs link_settings output link_rate field in hex
bpf/tests: Fix copy-and-paste error in double word test
bpf/tests: Do not PASS tests without actually testing the result
video: fbdev: asiliantfb: Error out if 'pixclock' equals zero
video: fbdev: kyro: Error out if 'pixclock' equals zero
video: fbdev: riva: Error out if 'pixclock' equals zero
ipv4: ip_output.c: Fix out-of-bounds warning in ip_copy_addrs()
flow_dissector: Fix out-of-bounds warnings
s390/jump_label: print real address in a case of a jump label bug
serial: 8250: Define RX trigger levels for OxSemi 950 devices
xtensa: ISS: don't panic in rs_init
hvsi: don't panic on tty_register_driver failure
serial: 8250_pci: make setup_port() parameters explicitly unsigned
staging: ks7010: Fix the initialization of the 'sleep_status' structure
samples: bpf: Fix tracex7 error raised on the missing argument
ata: sata_dwc_460ex: No need to call phy_exit() befre phy_init()
Bluetooth: skip invalid hci_sync_conn_complete_evt
bonding: 3ad: fix the concurrency between __bond_release_one() and bond_3ad_state_machine_handler()
ASoC: Intel: bytcr_rt5640: Move "Platform Clock" routes to the maps for the matching in-/output
media: imx258: Rectify mismatch of VTS value
media: imx258: Limit the max analogue gain to 480
media: v4l2-dv-timings.c: fix wrong condition in two for-loops
media: TDA1997x: fix tda1997x_query_dv_timings() return value
media: tegra-cec: Handle errors of clk_prepare_enable()
ARM: dts: imx53-ppd: Fix ACHC entry
arm64: dts: qcom: sdm660: use reg value for memory node
net: ethernet: stmmac: Do not use unreachable() in ipq806x_gmac_probe()
Bluetooth: schedule SCO timeouts with delayed_work
Bluetooth: avoid circular locks in sco_sock_connect
gpu: drm: amd: amdgpu: amdgpu_i2c: fix possible uninitialized-variable access in amdgpu_i2c_router_select_ddc_port()
ARM: tegra: tamonten: Fix UART pad setting
Bluetooth: Fix handling of LE Enhanced Connection Complete
serial: sh-sci: fix break handling for sysrq
tcp: enable data-less, empty-cookie SYN with TFO_SERVER_COOKIE_NOT_REQD
rpc: fix gss_svc_init cleanup on failure
staging: rts5208: Fix get_ms_information() heap buffer size
gfs2: Don't call dlm after protocol is unmounted
of: Don't allow __of_attached_node_sysfs() without CONFIG_SYSFS
mmc: sdhci-of-arasan: Check return value of non-void funtions
mmc: rtsx_pci: Fix long reads when clock is prescaled
selftests/bpf: Enlarge select() timeout for test_maps
mmc: core: Return correct emmc response in case of ioctl error
cifs: fix wrong release in sess_alloc_buffer() failed path
Revert "USB: xhci: fix U1/U2 handling for hardware with XHCI_INTEL_HOST quirk set"
usb: musb: musb_dsps: request_irq() after initializing musb
usbip: give back URBs for unsent unlink requests during cleanup
usbip:vhci_hcd USB port can get stuck in the disabled state
ASoC: rockchip: i2s: Fix regmap_ops hang
ASoC: rockchip: i2s: Fixup config for DAIFMT_DSP_A/B
parport: remove non-zero check on count
ath9k: fix OOB read ar9300_eeprom_restore_internal
ath9k: fix sleeping in atomic context
net: fix NULL pointer reference in cipso_v4_doi_free
net: w5100: check return value after calling platform_get_resource()
parisc: fix crash with signals and alloca
ovl: fix BUG_ON() in may_delete() when called from ovl_cleanup()
scsi: BusLogic: Fix missing pr_cont() use
scsi: qla2xxx: Sync queue idx with queue_pair_map idx
cpufreq: powernv: Fix init_chip_info initialization in numa=off
mm/hugetlb: initialize hugetlb_usage in mm_init
memcg: enable accounting for pids in nested pid namespaces
platform/chrome: cros_ec_proto: Send command again when timeout occurs
drm/amdgpu: Fix BUG_ON assert
dm thin metadata: Fix use-after-free in dm_bm_set_read_only
xen: reset legacy rtc flag for PV domU
bnx2x: Fix enabling network interfaces without VFs
arm64/sve: Use correct size when reinitialising SVE state
PM: base: power: don't try to use non-existing RTC for storing data
PCI: Add AMD GPU multi-function power dependencies
x86/mm: Fix kern_addr_valid() to cope with existing but not present entries
tipc: fix an use-after-free issue in tipc_recvmsg
net-caif: avoid user-triggerable WARN_ON(1)
ptp: dp83640: don't define PAGE0
dccp: don't duplicate ccid when cloning dccp sock
net/l2tp: Fix reference count leak in l2tp_udp_recv_core
r6040: Restore MDIO clock frequency after MAC reset
tipc: increase timeout in tipc_sk_enqueue()
perf machine: Initialize srcline string member in add_location struct
net/mlx5: Fix potential sleeping in atomic context
events: Reuse value read using READ_ONCE instead of re-reading it
net/af_unix: fix a data-race in unix_dgram_poll
net: dsa: destroy the phylink instance on any error in dsa_slave_phy_setup
tcp: fix tp->undo_retrans accounting in tcp_sacktag_one()
qed: Handle management FW error
ibmvnic: check failover_pending in login response
net: hns3: pad the short tunnel frame before sending to hardware
mm/memory_hotplug: use "unsigned long" for PFN in zone_for_pfn_range()
KVM: s390: index kvm->arch.idle_mask by vcpu_idx
dt-bindings: mtd: gpmc: Fix the ECC bytes vs. OOB bytes equation
mfd: Don't use irq_create_mapping() to resolve a mapping
PCI: Add ACS quirks for Cavium multi-function devices
net: usb: cdc_mbim: avoid altsetting toggling for Telit LN920
block, bfq: honor already-setup queue merges
ethtool: Fix an error code in cxgb2.c
NTB: perf: Fix an error code in perf_setup_inbuf()
mfd: axp20x: Update AXP288 volatile ranges
PCI: Fix pci_dev_str_match_path() alloc while atomic bug
KVM: arm64: Handle PSCI resets before userspace touches vCPU state
PCI: Sync __pci_register_driver() stub for CONFIG_PCI=n
mtd: rawnand: cafe: Fix a resource leak in the error handling path of 'cafe_nand_probe()'
ARC: export clear_user_page() for modules
net: dsa: b53: Fix calculating number of switch ports
netfilter: socket: icmp6: fix use-after-scope
fq_codel: reject silly quantum parameters
qlcnic: Remove redundant unlock in qlcnic_pinit_from_rom
ip_gre: validate csum_start only on pull
net: renesas: sh_eth: Fix freeing wrong tx descriptor
s390/bpf: Fix 64-bit subtraction of the -0x80000000 constant
Linux 4.19.207
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I18108cb47ba9e95838ebe55aaabe34de345ee846
diff --git a/Documentation/ABI/stable/sysfs-bus-nvmem b/Documentation/ABI/stable/sysfs-bus-nvmem
index 5923ab4..9ffba85 100644
--- a/Documentation/ABI/stable/sysfs-bus-nvmem
+++ b/Documentation/ABI/stable/sysfs-bus-nvmem
@@ -6,6 +6,8 @@
This file allows user to read/write the raw NVMEM contents.
Permissions for write to this file depends on the nvmem
provider configuration.
+ Note: This file is only present if CONFIG_NVMEM_SYSFS
+ is enabled
ex:
hexdump /sys/bus/nvmem/devices/qfprom0/nvmem
diff --git a/Documentation/ABI/testing/procfs-concurrent_time b/Documentation/ABI/testing/procfs-concurrent_time
new file mode 100644
index 0000000..55b4142
--- /dev/null
+++ b/Documentation/ABI/testing/procfs-concurrent_time
@@ -0,0 +1,16 @@
+What: /proc/uid_concurrent_active_time
+Date: December 2018
+Contact: Connor O'Brien <connoro@google.com>
+Description:
+ The /proc/uid_concurrent_active_time file displays aggregated cputime
+ numbers for each uid, broken down by the total number of cores that were
+ active while the uid's task was running.
+
+What: /proc/uid_concurrent_policy_time
+Date: December 2018
+Contact: Connor O'Brien <connoro@google.com>
+Description:
+ The /proc/uid_concurrent_policy_time file displays aggregated cputime
+ numbers for each uid, broken down based on the cpufreq policy
+ of the core used by the uid's task and the number of cores associated
+ with that policy that were active while the uid's task was running.
diff --git a/Documentation/ABI/testing/sysfs-block-zram b/Documentation/ABI/testing/sysfs-block-zram
index c1513c7..14b2bf2 100644
--- a/Documentation/ABI/testing/sysfs-block-zram
+++ b/Documentation/ABI/testing/sysfs-block-zram
@@ -98,3 +98,42 @@
The backing_dev file is read-write and set up backing
device for zram to write incompressible pages.
For using, user should enable CONFIG_ZRAM_WRITEBACK.
+
+What: /sys/block/zram<id>/idle
+Date: November 2018
+Contact: Minchan Kim <minchan@kernel.org>
+Description:
+ idle file is write-only and mark zram slot as idle.
+ If system has mounted debugfs, user can see which slots
+ are idle via /sys/kernel/debug/zram/zram<id>/block_state
+
+What: /sys/block/zram<id>/writeback
+Date: November 2018
+Contact: Minchan Kim <minchan@kernel.org>
+Description:
+ The writeback file is write-only and trigger idle and/or
+ huge page writeback to backing device.
+
+What: /sys/block/zram<id>/bd_stat
+Date: November 2018
+Contact: Minchan Kim <minchan@kernel.org>
+Description:
+ The bd_stat file is read-only and represents backing device's
+ statistics (bd_count, bd_reads, bd_writes) in a format
+ similar to block layer statistics file format.
+
+What: /sys/block/zram<id>/writeback_limit_enable
+Date: November 2018
+Contact: Minchan Kim <minchan@kernel.org>
+Description:
+ The writeback_limit_enable file is read-write and specifies
+ eanbe of writeback_limit feature. "1" means eable the feature.
+ No limit "0" is the initial state.
+
+What: /sys/block/zram<id>/writeback_limit
+Date: November 2018
+Contact: Minchan Kim <minchan@kernel.org>
+Description:
+ The writeback_limit file is read-write and specifies the maximum
+ amount of writeback ZRAM can do. The limit could be changed
+ in run time.
diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power
index 5e23e22..c1075ec 100644
--- a/Documentation/ABI/testing/sysfs-class-power
+++ b/Documentation/ABI/testing/sysfs-class-power
@@ -144,7 +144,8 @@
Access: Read
Valid values: "Unknown", "Good", "Overheat", "Dead",
"Over voltage", "Unspecified failure", "Cold",
- "Watchdog timer expire", "Safety timer expire"
+ "Watchdog timer expire", "Safety timer expire",
+ "Over current", "Warm", "Cool", "Hot"
What: /sys/class/power_supply/<supply_name>/precharge_current
Date: June 2017
diff --git a/Documentation/ABI/testing/sysfs-class-wakeup b/Documentation/ABI/testing/sysfs-class-wakeup
new file mode 100644
index 0000000..754aab8
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-wakeup
@@ -0,0 +1,76 @@
+What: /sys/class/wakeup/
+Date: June 2019
+Contact: Tri Vo <trong@android.com>
+Description:
+ The /sys/class/wakeup/ directory contains pointers to all
+ wakeup sources in the kernel at that moment in time.
+
+What: /sys/class/wakeup/.../name
+Date: June 2019
+Contact: Tri Vo <trong@android.com>
+Description:
+ This file contains the name of the wakeup source.
+
+What: /sys/class/wakeup/.../active_count
+Date: June 2019
+Contact: Tri Vo <trong@android.com>
+Description:
+ This file contains the number of times the wakeup source was
+ activated.
+
+What: /sys/class/wakeup/.../event_count
+Date: June 2019
+Contact: Tri Vo <trong@android.com>
+Description:
+ This file contains the number of signaled wakeup events
+ associated with the wakeup source.
+
+What: /sys/class/wakeup/.../wakeup_count
+Date: June 2019
+Contact: Tri Vo <trong@android.com>
+Description:
+ This file contains the number of times the wakeup source might
+ abort suspend.
+
+What: /sys/class/wakeup/.../expire_count
+Date: June 2019
+Contact: Tri Vo <trong@android.com>
+Description:
+ This file contains the number of times the wakeup source's
+ timeout has expired.
+
+What: /sys/class/wakeup/.../active_time_ms
+Date: June 2019
+Contact: Tri Vo <trong@android.com>
+Description:
+ This file contains the amount of time the wakeup source has
+ been continuously active, in milliseconds. If the wakeup
+ source is not active, this file contains '0'.
+
+What: /sys/class/wakeup/.../total_time_ms
+Date: June 2019
+Contact: Tri Vo <trong@android.com>
+Description:
+ This file contains the total amount of time this wakeup source
+ has been active, in milliseconds.
+
+What: /sys/class/wakeup/.../max_time_ms
+Date: June 2019
+Contact: Tri Vo <trong@android.com>
+Description:
+ This file contains the maximum amount of time this wakeup
+ source has been continuously active, in milliseconds.
+
+What: /sys/class/wakeup/.../last_change_ms
+Date: June 2019
+Contact: Tri Vo <trong@android.com>
+Description:
+ This file contains the monotonic clock time when the wakeup
+ source was touched last time, in milliseconds.
+
+What: /sys/class/wakeup/.../prevent_suspend_time_ms
+Date: June 2019
+Contact: Tri Vo <trong@android.com>
+Description:
+ The file contains the total amount of time this wakeup source
+ has been preventing autosleep, in milliseconds.
diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs
index 94a24ae..4bb93a0 100644
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -1,214 +1,349 @@
What: /sys/fs/f2fs/<disk>/gc_max_sleep_time
Date: July 2013
Contact: "Namjae Jeon" <namjae.jeon@samsung.com>
-Description:
- Controls the maximun sleep time for gc_thread. Time
- is in milliseconds.
+Description: Controls the maximum sleep time for gc_thread. Time
+ is in milliseconds.
What: /sys/fs/f2fs/<disk>/gc_min_sleep_time
Date: July 2013
Contact: "Namjae Jeon" <namjae.jeon@samsung.com>
-Description:
- Controls the minimum sleep time for gc_thread. Time
- is in milliseconds.
+Description: Controls the minimum sleep time for gc_thread. Time
+ is in milliseconds.
What: /sys/fs/f2fs/<disk>/gc_no_gc_sleep_time
Date: July 2013
Contact: "Namjae Jeon" <namjae.jeon@samsung.com>
-Description:
- Controls the default sleep time for gc_thread. Time
- is in milliseconds.
+Description: Controls the default sleep time for gc_thread. Time
+ is in milliseconds.
What: /sys/fs/f2fs/<disk>/gc_idle
Date: July 2013
Contact: "Namjae Jeon" <namjae.jeon@samsung.com>
-Description:
- Controls the victim selection policy for garbage collection.
+Description: Controls the victim selection policy for garbage collection.
+ Setting gc_idle = 0(default) will disable this option. Setting
+ gc_idle = 1 will select the Cost Benefit approach & setting
+ gc_idle = 2 will select the greedy approach.
What: /sys/fs/f2fs/<disk>/reclaim_segments
Date: October 2013
Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com>
+Description: This parameter controls the number of prefree segments to be
+ reclaimed. If the number of prefree segments is larger than
+ the number of segments in the proportion to the percentage
+ over total volume size, f2fs tries to conduct checkpoint to
+ reclaim the prefree segments to free segments.
+ By default, 5% over total # of segments.
+
+What: /sys/fs/f2fs/<disk>/main_blkaddr
+Date: November 2019
+Contact: "Ramon Pantin" <pantin@google.com>
Description:
- Controls the issue rate of segment discard commands.
+ Shows first block address of MAIN area.
What: /sys/fs/f2fs/<disk>/ipu_policy
Date: November 2013
Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com>
-Description:
- Controls the in-place-update policy.
+Description: Controls the in-place-update policy.
+ updates in f2fs. User can set:
+ 0x01: F2FS_IPU_FORCE, 0x02: F2FS_IPU_SSR,
+ 0x04: F2FS_IPU_UTIL, 0x08: F2FS_IPU_SSR_UTIL,
+ 0x10: F2FS_IPU_FSYNC, 0x20: F2FS_IPU_ASYNC,
+ 0x40: F2FS_IPU_NOCACHE.
+ Refer segment.h for details.
What: /sys/fs/f2fs/<disk>/min_ipu_util
Date: November 2013
Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com>
-Description:
- Controls the FS utilization condition for the in-place-update
- policies.
+Description: Controls the FS utilization condition for the in-place-update
+ policies. It is used by F2FS_IPU_UTIL and F2FS_IPU_SSR_UTIL policies.
What: /sys/fs/f2fs/<disk>/min_fsync_blocks
Date: September 2014
Contact: "Jaegeuk Kim" <jaegeuk@kernel.org>
-Description:
- Controls the dirty page count condition for the in-place-update
- policies.
+Description: Controls the dirty page count condition for the in-place-update
+ policies.
What: /sys/fs/f2fs/<disk>/min_seq_blocks
Date: August 2018
Contact: "Jaegeuk Kim" <jaegeuk@kernel.org>
-Description:
- Controls the dirty page count condition for batched sequential
- writes in ->writepages.
-
+Description: Controls the dirty page count condition for batched sequential
+ writes in writepages.
What: /sys/fs/f2fs/<disk>/min_hot_blocks
Date: March 2017
Contact: "Jaegeuk Kim" <jaegeuk@kernel.org>
-Description:
- Controls the dirty page count condition for redefining hot data.
+Description: Controls the dirty page count condition for redefining hot data.
What: /sys/fs/f2fs/<disk>/min_ssr_sections
Date: October 2017
Contact: "Chao Yu" <yuchao0@huawei.com>
-Description:
- Controls the fee section threshold to trigger SSR allocation.
+Description: Controls the free section threshold to trigger SSR allocation.
+ If this is large, SSR mode will be enabled early.
What: /sys/fs/f2fs/<disk>/max_small_discards
Date: November 2013
Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com>
-Description:
- Controls the issue rate of small discard commands.
+Description: Controls the issue rate of discard commands that consist of small
+ blocks less than 2MB. The candidates to be discarded are cached until
+ checkpoint is triggered, and issued during the checkpoint.
+ By default, it is disabled with 0.
-What: /sys/fs/f2fs/<disk>/discard_granularity
-Date: July 2017
-Contact: "Chao Yu" <yuchao0@huawei.com>
-Description:
- Controls discard granularity of inner discard thread, inner thread
+What: /sys/fs/f2fs/<disk>/discard_granularity
+Date: July 2017
+Contact: "Chao Yu" <yuchao0@huawei.com>
+Description: Controls discard granularity of inner discard thread. Inner thread
will not issue discards with size that is smaller than granularity.
- The unit size is one block, now only support configuring in range
- of [1, 512].
+ The unit size is one block(4KB), now only support configuring
+ in range of [1, 512]. Default value is 4(=16KB).
+
+What: /sys/fs/f2fs/<disk>/umount_discard_timeout
+Date: January 2019
+Contact: "Jaegeuk Kim" <jaegeuk@kernel.org>
+Description: Set timeout to issue discard commands during umount.
+ Default: 5 secs
What: /sys/fs/f2fs/<disk>/max_victim_search
Date: January 2014
Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com>
-Description:
- Controls the number of trials to find a victim segment.
+Description: Controls the number of trials to find a victim segment
+ when conducting SSR and cleaning operations. The default value
+ is 4096 which covers 8GB block address range.
+
+What: /sys/fs/f2fs/<disk>/migration_granularity
+Date: October 2018
+Contact: "Chao Yu" <yuchao0@huawei.com>
+Description: Controls migration granularity of garbage collection on large
+ section, it can let GC move partial segment{s} of one section
+ in one GC cycle, so that dispersing heavy overhead GC to
+ multiple lightweight one.
What: /sys/fs/f2fs/<disk>/dir_level
Date: March 2014
Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com>
-Description:
- Controls the directory level for large directory.
+Description: Controls the directory level for large directory. If a
+ directory has a number of files, it can reduce the file lookup
+ latency by increasing this dir_level value. Otherwise, it
+ needs to decrease this value to reduce the space overhead.
+ The default value is 0.
What: /sys/fs/f2fs/<disk>/ram_thresh
Date: March 2014
Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com>
-Description:
- Controls the memory footprint used by f2fs.
+Description: Controls the memory footprint used by free nids and cached
+ nat entries. By default, 1 is set, which indicates
+ 10 MB / 1 GB RAM.
What: /sys/fs/f2fs/<disk>/batched_trim_sections
Date: February 2015
Contact: "Jaegeuk Kim" <jaegeuk@kernel.org>
-Description:
- Controls the trimming rate in batch mode.
- <deprecated>
+Description: Controls the trimming rate in batch mode.
+ <deprecated>
What: /sys/fs/f2fs/<disk>/cp_interval
Date: October 2015
Contact: "Jaegeuk Kim" <jaegeuk@kernel.org>
-Description:
- Controls the checkpoint timing.
+Description: Controls the checkpoint timing, set to 60 seconds by default.
What: /sys/fs/f2fs/<disk>/idle_interval
Date: January 2016
Contact: "Jaegeuk Kim" <jaegeuk@kernel.org>
-Description:
- Controls the idle timing.
+Description: Controls the idle timing of system, if there is no FS operation
+ during given interval.
+ Set to 5 seconds by default.
+
+What: /sys/fs/f2fs/<disk>/discard_idle_interval
+Date: September 2018
+Contact: "Chao Yu" <yuchao0@huawei.com>
+Contact: "Sahitya Tummala" <stummala@codeaurora.org>
+Description: Controls the idle timing of discard thread given
+ this time interval.
+ Default is 5 secs.
+
+What: /sys/fs/f2fs/<disk>/gc_idle_interval
+Date: September 2018
+Contact: "Chao Yu" <yuchao0@huawei.com>
+Contact: "Sahitya Tummala" <stummala@codeaurora.org>
+Description: Controls the idle timing for gc path. Set to 5 seconds by default.
What: /sys/fs/f2fs/<disk>/iostat_enable
Date: August 2017
Contact: "Chao Yu" <yuchao0@huawei.com>
-Description:
- Controls to enable/disable IO stat.
+Description: Controls to enable/disable IO stat.
What: /sys/fs/f2fs/<disk>/ra_nid_pages
Date: October 2015
Contact: "Chao Yu" <chao2.yu@samsung.com>
-Description:
- Controls the count of nid pages to be readaheaded.
+Description: Controls the count of nid pages to be readaheaded.
+ When building free nids, F2FS reads NAT blocks ahead for
+ speed up. Default is 0.
What: /sys/fs/f2fs/<disk>/dirty_nats_ratio
Date: January 2016
Contact: "Chao Yu" <chao2.yu@samsung.com>
-Description:
- Controls dirty nat entries ratio threshold, if current
- ratio exceeds configured threshold, checkpoint will
- be triggered for flushing dirty nat entries.
+Description: Controls dirty nat entries ratio threshold, if current
+ ratio exceeds configured threshold, checkpoint will
+ be triggered for flushing dirty nat entries.
What: /sys/fs/f2fs/<disk>/lifetime_write_kbytes
Date: January 2016
Contact: "Shuoran Liu" <liushuoran@huawei.com>
-Description:
- Shows total written kbytes issued to disk.
+Description: Shows total written kbytes issued to disk.
What: /sys/fs/f2fs/<disk>/features
Date: July 2017
Contact: "Jaegeuk Kim" <jaegeuk@kernel.org>
-Description:
- Shows all enabled features in current device.
+Description: Shows all enabled features in current device.
What: /sys/fs/f2fs/<disk>/inject_rate
Date: May 2016
Contact: "Sheng Yong" <shengyong1@huawei.com>
-Description:
- Controls the injection rate.
+Description: Controls the injection rate of arbitrary faults.
What: /sys/fs/f2fs/<disk>/inject_type
Date: May 2016
Contact: "Sheng Yong" <shengyong1@huawei.com>
-Description:
- Controls the injection type.
+Description: Controls the injection type of arbitrary faults.
+
+What: /sys/fs/f2fs/<disk>/dirty_segments
+Date: October 2017
+Contact: "Jaegeuk Kim" <jaegeuk@kernel.org>
+Description: Shows the number of dirty segments.
What: /sys/fs/f2fs/<disk>/reserved_blocks
Date: June 2017
Contact: "Chao Yu" <yuchao0@huawei.com>
-Description:
- Controls target reserved blocks in system, the threshold
- is soft, it could exceed current available user space.
+Description: Controls target reserved blocks in system, the threshold
+ is soft, it could exceed current available user space.
What: /sys/fs/f2fs/<disk>/current_reserved_blocks
Date: October 2017
Contact: "Yunlong Song" <yunlong.song@huawei.com>
Contact: "Chao Yu" <yuchao0@huawei.com>
-Description:
- Shows current reserved blocks in system, it may be temporarily
- smaller than target_reserved_blocks, but will gradually
- increase to target_reserved_blocks when more free blocks are
- freed by user later.
+Description: Shows current reserved blocks in system, it may be temporarily
+ smaller than target_reserved_blocks, but will gradually
+ increase to target_reserved_blocks when more free blocks are
+ freed by user later.
What: /sys/fs/f2fs/<disk>/gc_urgent
Date: August 2017
Contact: "Jaegeuk Kim" <jaegeuk@kernel.org>
-Description:
- Do background GC agressively
+Description: Do background GC agressively when set. When gc_urgent = 1,
+ background thread starts to do GC by given gc_urgent_sleep_time
+ interval. It is set to 0 by default.
What: /sys/fs/f2fs/<disk>/gc_urgent_sleep_time
Date: August 2017
Contact: "Jaegeuk Kim" <jaegeuk@kernel.org>
-Description:
- Controls sleep time of GC urgent mode
+Description: Controls sleep time of GC urgent mode. Set to 500ms by default.
What: /sys/fs/f2fs/<disk>/readdir_ra
Date: November 2017
Contact: "Sheng Yong" <shengyong1@huawei.com>
-Description:
- Controls readahead inode block in readdir.
+Description: Controls readahead inode block in readdir. Enabled by default.
+
+What: /sys/fs/f2fs/<disk>/gc_pin_file_thresh
+Date: January 2018
+Contact: Jaegeuk Kim <jaegeuk@kernel.org>
+Description: This indicates how many GC can be failed for the pinned
+ file. If it exceeds this, F2FS doesn't guarantee its pinning
+ state. 2048 trials is set by default.
What: /sys/fs/f2fs/<disk>/extension_list
Date: Feburary 2018
Contact: "Chao Yu" <yuchao0@huawei.com>
-Description:
- Used to control configure extension list:
- - Query: cat /sys/fs/f2fs/<disk>/extension_list
- - Add: echo '[h/c]extension' > /sys/fs/f2fs/<disk>/extension_list
- - Del: echo '[h/c]!extension' > /sys/fs/f2fs/<disk>/extension_list
- - [h] means add/del hot file extension
- - [c] means add/del cold file extension
+Description: Used to control configure extension list:
+ - Query: cat /sys/fs/f2fs/<disk>/extension_list
+ - Add: echo '[h/c]extension' > /sys/fs/f2fs/<disk>/extension_list
+ - Del: echo '[h/c]!extension' > /sys/fs/f2fs/<disk>/extension_list
+ - [h] means add/del hot file extension
+ - [c] means add/del cold file extension
+
+What: /sys/fs/f2fs/<disk>/unusable
+Date April 2019
+Contact: "Daniel Rosenberg" <drosen@google.com>
+Description: If checkpoint=disable, it displays the number of blocks that
+ are unusable.
+ If checkpoint=enable it displays the enumber of blocks that
+ would be unusable if checkpoint=disable were to be set.
+
+What: /sys/fs/f2fs/<disk>/encoding
+Date July 2019
+Contact: "Daniel Rosenberg" <drosen@google.com>
+Description: Displays name and version of the encoding set for the filesystem.
+ If no encoding is set, displays (none)
+
+What: /sys/fs/f2fs/<disk>/free_segments
+Date: September 2019
+Contact: "Hridya Valsaraju" <hridya@google.com>
+Description: Number of free segments in disk.
+
+What: /sys/fs/f2fs/<disk>/cp_foreground_calls
+Date: September 2019
+Contact: "Hridya Valsaraju" <hridya@google.com>
+Description: Number of checkpoint operations performed on demand. Available when
+ CONFIG_F2FS_STAT_FS=y.
+
+What: /sys/fs/f2fs/<disk>/cp_background_calls
+Date: September 2019
+Contact: "Hridya Valsaraju" <hridya@google.com>
+Description: Number of checkpoint operations performed in the background to
+ free segments. Available when CONFIG_F2FS_STAT_FS=y.
+
+What: /sys/fs/f2fs/<disk>/gc_foreground_calls
+Date: September 2019
+Contact: "Hridya Valsaraju" <hridya@google.com>
+Description: Number of garbage collection operations performed on demand.
+ Available when CONFIG_F2FS_STAT_FS=y.
+
+What: /sys/fs/f2fs/<disk>/gc_background_calls
+Date: September 2019
+Contact: "Hridya Valsaraju" <hridya@google.com>
+Description: Number of garbage collection operations triggered in background.
+ Available when CONFIG_F2FS_STAT_FS=y.
+
+What: /sys/fs/f2fs/<disk>/moved_blocks_foreground
+Date: September 2019
+Contact: "Hridya Valsaraju" <hridya@google.com>
+Description: Number of blocks moved by garbage collection in foreground.
+ Available when CONFIG_F2FS_STAT_FS=y.
+
+What: /sys/fs/f2fs/<disk>/moved_blocks_background
+Date: September 2019
+Contact: "Hridya Valsaraju" <hridya@google.com>
+Description: Number of blocks moved by garbage collection in background.
+ Available when CONFIG_F2FS_STAT_FS=y.
+
+What: /sys/fs/f2fs/<disk>/avg_vblocks
+Date: September 2019
+Contact: "Hridya Valsaraju" <hridya@google.com>
+Description: Average number of valid blocks.
+ Available when CONFIG_F2FS_STAT_FS=y.
+
+What: /sys/fs/f2fs/<disk>/mounted_time_sec
+Date: February 2020
+Contact: "Jaegeuk Kim" <jaegeuk@kernel.org>
+Description: Show the mounted time in secs of this partition.
+
+What: /sys/fs/f2fs/<disk>/data_io_flag
+Date: April 2020
+Contact: "Jaegeuk Kim" <jaegeuk@kernel.org>
+Description: Give a way to attach REQ_META|FUA to data writes
+ given temperature-based bits. Now the bits indicate:
+ * REQ_META | REQ_FUA |
+ * 5 | 4 | 3 | 2 | 1 | 0 |
+ * Cold | Warm | Hot | Cold | Warm | Hot |
+
+What: /sys/fs/f2fs/<disk>/node_io_flag
+Date: June 2020
+Contact: "Jaegeuk Kim" <jaegeuk@kernel.org>
+Description: Give a way to attach REQ_META|FUA to node writes
+ given temperature-based bits. Now the bits indicate:
+ * REQ_META | REQ_FUA |
+ * 5 | 4 | 3 | 2 | 1 | 0 |
+ * Cold | Warm | Hot | Cold | Warm | Hot |
+
+What: /sys/fs/f2fs/<disk>/iostat_period_ms
+Date: April 2020
+Contact: "Daeho Jeong" <daehojeong@google.com>
+Description: Give a way to change iostat_period time. 3secs by default.
+ The new iostat trace gives stats gap given the period.
diff --git a/Documentation/ABI/testing/sysfs-kernel-ion b/Documentation/ABI/testing/sysfs-kernel-ion
new file mode 100644
index 0000000..f57f970
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-kernel-ion
@@ -0,0 +1,27 @@
+What: /sys/kernel/ion
+Date: Dec 2019
+KernelVersion: 4.14.158
+Contact: Suren Baghdasaryan <surenb@google.com>,
+ Sandeep Patil <sspatil@google.com>
+Description:
+ The /sys/kernel/ion directory contains a snapshot of the
+ internal state of ION memory heaps and pools.
+Users: kernel memory tuning tools
+
+What: /sys/kernel/ion/total_heaps_kb
+Date: Dec 2019
+KernelVersion: 4.14.158
+Contact: Suren Baghdasaryan <surenb@google.com>,
+ Sandeep Patil <sspatil@google.com>
+Description:
+ The total_heaps_kb file is read-only and specifies how much
+ memory in Kb is allocated to ION heaps.
+
+What: /sys/kernel/ion/total_pools_kb
+Date: Dec 2019
+KernelVersion: 4.14.158
+Contact: Suren Baghdasaryan <surenb@google.com>,
+ Sandeep Patil <sspatil@google.com>
+Description:
+ The total_pools_kb file is read-only and specifies how much
+ memory in Kb is allocated to ION pools.
diff --git a/Documentation/ABI/testing/sysfs-kernel-wakeup_reasons b/Documentation/ABI/testing/sysfs-kernel-wakeup_reasons
new file mode 100644
index 0000000..acb19b9
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-kernel-wakeup_reasons
@@ -0,0 +1,16 @@
+What: /sys/kernel/wakeup_reasons/last_resume_reason
+Date: February 2014
+Contact: Ruchi Kandoi <kandoiruchi@google.com>
+Description:
+ The /sys/kernel/wakeup_reasons/last_resume_reason is
+ used to report wakeup reasons after system exited suspend.
+
+What: /sys/kernel/wakeup_reasons/last_suspend_time
+Date: March 2015
+Contact: jinqian <jinqian@google.com>
+Description:
+ The /sys/kernel/wakeup_reasons/last_suspend_time is
+ used to report time spent in last suspend cycle. It contains
+ two numbers (in seconds) separated by space. First number is
+ the time spent in suspend and resume processes. Second number
+ is the time spent in sleep state.
\ No newline at end of file
diff --git a/Documentation/ABI/testing/sysfs-power b/Documentation/ABI/testing/sysfs-power
index 2f813d6..64237c1 100644
--- a/Documentation/ABI/testing/sysfs-power
+++ b/Documentation/ABI/testing/sysfs-power
@@ -300,4 +300,110 @@
attempt.
Using this sysfs file will override any values that were
- set using the kernel command line for disk offset.
\ No newline at end of file
+ set using the kernel command line for disk offset.
+
+What: /sys/power/suspend_stats
+Date: July 2019
+Contact: Kalesh Singh <kaleshsingh96@gmail.com>
+Description:
+ The /sys/power/suspend_stats directory contains suspend related
+ statistics.
+
+What: /sys/power/suspend_stats/success
+Date: July 2019
+Contact: Kalesh Singh <kaleshsingh96@gmail.com>
+Description:
+ The /sys/power/suspend_stats/success file contains the number
+ of times entering system sleep state succeeded.
+
+What: /sys/power/suspend_stats/fail
+Date: July 2019
+Contact: Kalesh Singh <kaleshsingh96@gmail.com>
+Description:
+ The /sys/power/suspend_stats/fail file contains the number
+ of times entering system sleep state failed.
+
+What: /sys/power/suspend_stats/failed_freeze
+Date: July 2019
+Contact: Kalesh Singh <kaleshsingh96@gmail.com>
+Description:
+ The /sys/power/suspend_stats/failed_freeze file contains the
+ number of times freezing processes failed.
+
+What: /sys/power/suspend_stats/failed_prepare
+Date: July 2019
+Contact: Kalesh Singh <kaleshsingh96@gmail.com>
+Description:
+ The /sys/power/suspend_stats/failed_prepare file contains the
+ number of times preparing all non-sysdev devices for
+ a system PM transition failed.
+
+What: /sys/power/suspend_stats/failed_resume
+Date: July 2019
+Contact: Kalesh Singh <kaleshsingh96@gmail.com>
+Description:
+ The /sys/power/suspend_stats/failed_resume file contains the
+ number of times executing "resume" callbacks of
+ non-sysdev devices failed.
+
+What: /sys/power/suspend_stats/failed_resume_early
+Date: July 2019
+Contact: Kalesh Singh <kaleshsingh96@gmail.com>
+Description:
+ The /sys/power/suspend_stats/failed_resume_early file contains
+ the number of times executing "early resume" callbacks
+ of devices failed.
+
+What: /sys/power/suspend_stats/failed_resume_noirq
+Date: July 2019
+Contact: Kalesh Singh <kaleshsingh96@gmail.com>
+Description:
+ The /sys/power/suspend_stats/failed_resume_noirq file contains
+ the number of times executing "noirq resume" callbacks
+ of devices failed.
+
+What: /sys/power/suspend_stats/failed_suspend
+Date: July 2019
+Contact: Kalesh Singh <kaleshsingh96@gmail.com>
+Description:
+ The /sys/power/suspend_stats/failed_suspend file contains
+ the number of times executing "suspend" callbacks
+ of all non-sysdev devices failed.
+
+What: /sys/power/suspend_stats/failed_suspend_late
+Date: July 2019
+Contact: Kalesh Singh <kaleshsingh96@gmail.com>
+Description:
+ The /sys/power/suspend_stats/failed_suspend_late file contains
+ the number of times executing "late suspend" callbacks
+ of all devices failed.
+
+What: /sys/power/suspend_stats/failed_suspend_noirq
+Date: July 2019
+Contact: Kalesh Singh <kaleshsingh96@gmail.com>
+Description:
+ The /sys/power/suspend_stats/failed_suspend_noirq file contains
+ the number of times executing "noirq suspend" callbacks
+ of all devices failed.
+
+What: /sys/power/suspend_stats/last_failed_dev
+Date: July 2019
+Contact: Kalesh Singh <kaleshsingh96@gmail.com>
+Description:
+ The /sys/power/suspend_stats/last_failed_dev file contains
+ the last device for which a suspend/resume callback failed.
+
+What: /sys/power/suspend_stats/last_failed_errno
+Date: July 2019
+Contact: Kalesh Singh <kaleshsingh96@gmail.com>
+Description:
+ The /sys/power/suspend_stats/last_failed_errno file contains
+ the errno of the last failed attempt at entering
+ system sleep state.
+
+What: /sys/power/suspend_stats/last_failed_step
+Date: July 2019
+Contact: Kalesh Singh <kaleshsingh96@gmail.com>
+Description:
+ The /sys/power/suspend_stats/last_failed_step file contains
+ the last failed step in the suspend/resume path.
diff --git a/Documentation/accounting/psi.txt b/Documentation/accounting/psi.txt
new file mode 100644
index 0000000..4fb40fe
--- /dev/null
+++ b/Documentation/accounting/psi.txt
@@ -0,0 +1,180 @@
+================================
+PSI - Pressure Stall Information
+================================
+
+:Date: April, 2018
+:Author: Johannes Weiner <hannes@cmpxchg.org>
+
+When CPU, memory or IO devices are contended, workloads experience
+latency spikes, throughput losses, and run the risk of OOM kills.
+
+Without an accurate measure of such contention, users are forced to
+either play it safe and under-utilize their hardware resources, or
+roll the dice and frequently suffer the disruptions resulting from
+excessive overcommit.
+
+The psi feature identifies and quantifies the disruptions caused by
+such resource crunches and the time impact it has on complex workloads
+or even entire systems.
+
+Having an accurate measure of productivity losses caused by resource
+scarcity aids users in sizing workloads to hardware--or provisioning
+hardware according to workload demand.
+
+As psi aggregates this information in realtime, systems can be managed
+dynamically using techniques such as load shedding, migrating jobs to
+other systems or data centers, or strategically pausing or killing low
+priority or restartable batch jobs.
+
+This allows maximizing hardware utilization without sacrificing
+workload health or risking major disruptions such as OOM kills.
+
+Pressure interface
+==================
+
+Pressure information for each resource is exported through the
+respective file in /proc/pressure/ -- cpu, memory, and io.
+
+The format for CPU is as such:
+
+some avg10=0.00 avg60=0.00 avg300=0.00 total=0
+
+and for memory and IO:
+
+some avg10=0.00 avg60=0.00 avg300=0.00 total=0
+full avg10=0.00 avg60=0.00 avg300=0.00 total=0
+
+The "some" line indicates the share of time in which at least some
+tasks are stalled on a given resource.
+
+The "full" line indicates the share of time in which all non-idle
+tasks are stalled on a given resource simultaneously. In this state
+actual CPU cycles are going to waste, and a workload that spends
+extended time in this state is considered to be thrashing. This has
+severe impact on performance, and it's useful to distinguish this
+situation from a state where some tasks are stalled but the CPU is
+still doing productive work. As such, time spent in this subset of the
+stall state is tracked separately and exported in the "full" averages.
+
+The ratios are tracked as recent trends over ten, sixty, and three
+hundred second windows, which gives insight into short term events as
+well as medium and long term trends. The total absolute stall time is
+tracked and exported as well, to allow detection of latency spikes
+which wouldn't necessarily make a dent in the time averages, or to
+average trends over custom time frames.
+
+Monitoring for pressure thresholds
+==================================
+
+Users can register triggers and use poll() to be woken up when resource
+pressure exceeds certain thresholds.
+
+A trigger describes the maximum cumulative stall time over a specific
+time window, e.g. 100ms of total stall time within any 500ms window to
+generate a wakeup event.
+
+To register a trigger user has to open psi interface file under
+/proc/pressure/ representing the resource to be monitored and write the
+desired threshold and time window. The open file descriptor should be
+used to wait for trigger events using select(), poll() or epoll().
+The following format is used:
+
+<some|full> <stall amount in us> <time window in us>
+
+For example writing "some 150000 1000000" into /proc/pressure/memory
+would add 150ms threshold for partial memory stall measured within
+1sec time window. Writing "full 50000 1000000" into /proc/pressure/io
+would add 50ms threshold for full io stall measured within 1sec time window.
+
+Triggers can be set on more than one psi metric and more than one trigger
+for the same psi metric can be specified. However for each trigger a separate
+file descriptor is required to be able to poll it separately from others,
+therefore for each trigger a separate open() syscall should be made even
+when opening the same psi interface file.
+
+Monitors activate only when system enters stall state for the monitored
+psi metric and deactivates upon exit from the stall state. While system is
+in the stall state psi signal growth is monitored at a rate of 10 times per
+tracking window.
+
+The kernel accepts window sizes ranging from 500ms to 10s, therefore min
+monitoring update interval is 50ms and max is 1s. Min limit is set to
+prevent overly frequent polling. Max limit is chosen as a high enough number
+after which monitors are most likely not needed and psi averages can be used
+instead.
+
+When activated, psi monitor stays active for at least the duration of one
+tracking window to avoid repeated activations/deactivations when system is
+bouncing in and out of the stall state.
+
+Notifications to the userspace are rate-limited to one per tracking window.
+
+The trigger will de-register when the file descriptor used to define the
+trigger is closed.
+
+Userspace monitor usage example
+===============================
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <poll.h>
+#include <string.h>
+#include <unistd.h>
+
+/*
+ * Monitor memory partial stall with 1s tracking window size
+ * and 150ms threshold.
+ */
+int main() {
+ const char trig[] = "some 150000 1000000";
+ struct pollfd fds;
+ int n;
+
+ fds.fd = open("/proc/pressure/memory", O_RDWR | O_NONBLOCK);
+ if (fds.fd < 0) {
+ printf("/proc/pressure/memory open error: %s\n",
+ strerror(errno));
+ return 1;
+ }
+ fds.events = POLLPRI;
+
+ if (write(fds.fd, trig, strlen(trig) + 1) < 0) {
+ printf("/proc/pressure/memory write error: %s\n",
+ strerror(errno));
+ return 1;
+ }
+
+ printf("waiting for events...\n");
+ while (1) {
+ n = poll(&fds, 1, -1);
+ if (n < 0) {
+ printf("poll error: %s\n", strerror(errno));
+ return 1;
+ }
+ if (fds.revents & POLLERR) {
+ printf("got POLLERR, event source is gone\n");
+ return 0;
+ }
+ if (fds.revents & POLLPRI) {
+ printf("event triggered!\n");
+ } else {
+ printf("unknown event received: 0x%x\n", fds.revents);
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+Cgroup2 interface
+=================
+
+In a system with a CONFIG_CGROUP=y kernel and the cgroup2 filesystem
+mounted, pressure stall information is also tracked for tasks grouped
+into cgroups. Each subdirectory in the cgroupfs mountpoint contains
+cpu.pressure, memory.pressure, and io.pressure files; the format is
+the same as the /proc/pressure/ files.
+
+Per-cgroup psi monitors can be specified and used the same way as
+system-wide ones.
diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst
index 184193b..15779d9 100644
--- a/Documentation/admin-guide/cgroup-v2.rst
+++ b/Documentation/admin-guide/cgroup-v2.rst
@@ -694,6 +694,12 @@
informational files on the root cgroup which end up showing global
information available elsewhere shouldn't exist.
+- The default time unit is microseconds. If a different unit is ever
+ used, an explicit unit suffix must be present.
+
+- A parts-per quantity should use a percentage decimal with at least
+ two digit fractional part - e.g. 13.40.
+
- If a controller implements weight based resource distribution, its
interface file should be named "weight" and have the range [1,
10000] with 100 as the default. The values are chosen to allow
@@ -907,6 +913,13 @@
normal scheduling policy and absolute bandwidth allocation model for
realtime scheduling policy.
+In all the above models, cycles distribution is defined only on a temporal
+base and it does not account for the frequency at which tasks are executed.
+The (optional) utilization clamping support allows to hint the schedutil
+cpufreq governor about the minimum desired frequency which should always be
+provided by a CPU, as well as the maximum desired frequency, which should not
+be exceeded by a CPU.
+
WARNING: cgroup2 doesn't yet support control of realtime processes and
the cpu controller can only be enabled when all RT processes are in
the root cgroup. Be aware that system management software may already
@@ -966,6 +979,39 @@
$PERIOD duration. "max" for $MAX indicates no limit. If only
one number is written, $MAX is updated.
+ cpu.pressure
+ A read-only nested-key file which exists on non-root cgroups.
+
+ Shows pressure stall information for CPU. See
+ Documentation/accounting/psi.txt for details.
+
+ cpu.uclamp.min
+ A read-write single value file which exists on non-root cgroups.
+ The default is "0", i.e. no utilization boosting.
+
+ The requested minimum utilization (protection) as a percentage
+ rational number, e.g. 12.34 for 12.34%.
+
+ This interface allows reading and setting minimum utilization clamp
+ values similar to the sched_setattr(2). This minimum utilization
+ value is used to clamp the task specific minimum utilization clamp.
+
+ The requested minimum utilization (protection) is always capped by
+ the current value for the maximum utilization (limit), i.e.
+ `cpu.uclamp.max`.
+
+ cpu.uclamp.max
+ A read-write single value file which exists on non-root cgroups.
+ The default is "max". i.e. no utilization capping
+
+ The requested maximum utilization (limit) as a percentage rational
+ number, e.g. 98.76 for 98.76%.
+
+ This interface allows reading and setting maximum utilization clamp
+ values similar to the sched_setattr(2). This maximum utilization
+ value is used to clamp the task specific maximum utilization clamp.
+
+
Memory
------
@@ -1271,6 +1317,12 @@
higher than the limit for an extended period of time. This
reduces the impact on the workload and memory management.
+ memory.pressure
+ A read-only nested-key file which exists on non-root cgroups.
+
+ Shows pressure stall information for memory. See
+ Documentation/accounting/psi.txt for details.
+
Usage Guidelines
~~~~~~~~~~~~~~~~
@@ -1408,6 +1460,12 @@
8:16 rbps=2097152 wbps=max riops=max wiops=max
+ io.pressure
+ A read-only nested-key file which exists on non-root cgroups.
+
+ Shows pressure stall information for IO. See
+ Documentation/accounting/psi.txt for details.
+
Writeback
~~~~~~~~~
diff --git a/Documentation/admin-guide/dynamic-debug-howto.rst b/Documentation/admin-guide/dynamic-debug-howto.rst
index fdf7242..1c9b4ac 100644
--- a/Documentation/admin-guide/dynamic-debug-howto.rst
+++ b/Documentation/admin-guide/dynamic-debug-howto.rst
@@ -54,6 +54,9 @@
<debugfs>/dynamic_debug/control
-bash: echo: write error: Invalid argument
+Note, for systems without 'debugfs' enabled, the control file can be
+found in ``/proc/dynamic_debug/control``.
+
Viewing Dynamic Debug Behaviour
===============================
diff --git a/Documentation/admin-guide/kernel-parameters.rst b/Documentation/admin-guide/kernel-parameters.rst
index b8d0bc0..1afb480 100644
--- a/Documentation/admin-guide/kernel-parameters.rst
+++ b/Documentation/admin-guide/kernel-parameters.rst
@@ -126,6 +126,7 @@
NET Appropriate network support is enabled.
NUMA NUMA support is enabled.
NFS Appropriate NFS support is enabled.
+ OF Devicetree is enabled.
OSS OSS sound support is enabled.
PV_OPS A paravirtualized kernel is enabled.
PARIDE The ParIDE (parallel port IDE) subsystem is enabled.
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 6795e9d..78b8c60 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -479,21 +479,30 @@
ccw_timeout_log [S390]
See Documentation/s390/CommonIO for details.
- cgroup_disable= [KNL] Disable a particular controller
- Format: {name of the controller(s) to disable}
+ cgroup_disable= [KNL] Disable a particular controller or optional feature
+ Format: {name of the controller(s) or feature(s) to disable}
The effects of cgroup_disable=foo are:
- foo isn't auto-mounted if you mount all cgroups in
a single hierarchy
- foo isn't visible as an individually mountable
subsystem
+ - if foo is an optional feature then the feature is
+ disabled and corresponding cgroup files are not
+ created
{Currently only "memory" controller deal with this and
cut the overhead, others just disable the usage. So
only cgroup_disable=memory is actually worthy}
+ Specifying "pressure" disables per-cgroup pressure
+ stall information accounting feature
- cgroup_no_v1= [KNL] Disable one, multiple, all cgroup controllers in v1
- Format: { controller[,controller...] | "all" }
+ cgroup_no_v1= [KNL] Disable cgroup controllers and named hierarchies in v1
+ Format: { { controller | "all" | "named" }
+ [,{ controller | "all" | "named" }...] }
Like cgroup_disable, but only applies to cgroup v1;
the blacklisted controllers remain available in cgroup2.
+ "all" blacklists all controllers and "named" disables
+ named mounts. Specifying both "all" and "named" disables
+ all v1 hierarchies.
cgroup.memory= [KNL] Pass options to the cgroup memory controller.
Format: <string>
@@ -1641,6 +1650,15 @@
initrd= [BOOT] Specify the location of the initial ramdisk
+ init_on_alloc= [MM] Fill newly allocated pages and heap objects with
+ zeroes.
+ Format: 0 | 1
+ Default set by CONFIG_INIT_ON_ALLOC_DEFAULT_ON.
+
+ init_on_free= [MM] Fill freed pages and heap objects with zeroes.
+ Format: 0 | 1
+ Default set by CONFIG_INIT_ON_FREE_DEFAULT_ON.
+
init_pkru= [x86] Specify the default memory protection keys rights
register contents for all processes. 0x55555554 by
default (disallow access to all but pkey 0). Can
@@ -3125,6 +3143,12 @@
This can be set from sysctl after boot.
See Documentation/sysctl/vm.txt for details.
+ of_devlink [OF, KNL] Create device links between consumer and
+ supplier devices by scanning the devictree to infer the
+ consumer/supplier relationships. A consumer device
+ will not be probed until all the supplier devices have
+ probed successfully.
+
ohci1394_dma=early [HW] enable debugging via the ohci1394 driver.
See Documentation/debugging-via-ohci1394.txt for more
info.
@@ -3602,6 +3626,10 @@
before loading.
See Documentation/blockdev/ramdisk.txt.
+ psi= [KNL] Enable or disable pressure stall information
+ tracking.
+ Format: <bool>
+
psmouse.proto= [HW,MOUSE] Highest PS2 mouse protocol extension to
probe for; one of (bare|imps|exps|lifebook|any).
psmouse.rate= [HW,MOUSE] Set desired mouse report rate, in reports
@@ -4026,7 +4054,9 @@
[[,]s[mp]#### \
[[,]b[ios] | a[cpi] | k[bd] | t[riple] | e[fi] | p[ci]] \
[[,]f[orce]
- Where reboot_mode is one of warm (soft) or cold (hard) or gpio,
+ Where reboot_mode is one of warm (soft) or cold (hard) or gpio
+ (prefix with 'panic_' to set mode for panic
+ reboot only),
reboot_type is one of bios, acpi, kbd, triple, efi, or pci,
reboot_force is either force or not specified,
reboot_cpu is s[mp]#### with #### being the processor
diff --git a/Documentation/arm64/index.rst b/Documentation/arm64/index.rst
new file mode 100644
index 0000000..5c0c69d
--- /dev/null
+++ b/Documentation/arm64/index.rst
@@ -0,0 +1,27 @@
+==================
+ARM64 Architecture
+==================
+
+.. toctree::
+ :maxdepth: 1
+
+ acpi_object_usage
+ arm-acpi
+ booting
+ cpu-feature-registers
+ elf_hwcaps
+ hugetlbpage
+ legacy_instructions
+ memory
+ pointer-authentication
+ silicon-errata
+ sve
+ tagged-address-abi
+ tagged-pointers
+
+.. only:: subproject and html
+
+ Indices
+ =======
+
+ * :ref:`genindex`
diff --git a/Documentation/arm64/tagged-address-abi.rst b/Documentation/arm64/tagged-address-abi.rst
new file mode 100644
index 0000000..4a9d9c7
--- /dev/null
+++ b/Documentation/arm64/tagged-address-abi.rst
@@ -0,0 +1,163 @@
+==========================
+AArch64 TAGGED ADDRESS ABI
+==========================
+
+Authors: Vincenzo Frascino <vincenzo.frascino@arm.com>
+ Catalin Marinas <catalin.marinas@arm.com>
+
+Date: 21 August 2019
+
+This document describes the usage and semantics of the Tagged Address
+ABI on AArch64 Linux.
+
+1. Introduction
+---------------
+
+On AArch64 the ``TCR_EL1.TBI0`` bit is set by default, allowing
+userspace (EL0) to perform memory accesses through 64-bit pointers with
+a non-zero top byte. This document describes the relaxation of the
+syscall ABI that allows userspace to pass certain tagged pointers to
+kernel syscalls.
+
+2. AArch64 Tagged Address ABI
+-----------------------------
+
+From the kernel syscall interface perspective and for the purposes of
+this document, a "valid tagged pointer" is a pointer with a potentially
+non-zero top-byte that references an address in the user process address
+space obtained in one of the following ways:
+
+- ``mmap()`` syscall where either:
+
+ - flags have the ``MAP_ANONYMOUS`` bit set or
+ - the file descriptor refers to a regular file (including those
+ returned by ``memfd_create()``) or ``/dev/zero``
+
+- ``brk()`` syscall (i.e. the heap area between the initial location of
+ the program break at process creation and its current location).
+
+- any memory mapped by the kernel in the address space of the process
+ during creation and with the same restrictions as for ``mmap()`` above
+ (e.g. data, bss, stack).
+
+The AArch64 Tagged Address ABI has two stages of relaxation depending
+how the user addresses are used by the kernel:
+
+1. User addresses not accessed by the kernel but used for address space
+ management (e.g. ``mprotect()``, ``madvise()``). The use of valid
+ tagged pointers in this context is allowed with the exception of
+ ``brk()``, ``mmap()`` and the ``new_address`` argument to
+ ``mremap()`` as these have the potential to alias with existing
+ user addresses.
+
+ NOTE: This behaviour changed in v5.6 and so some earlier kernels may
+ incorrectly accept valid tagged pointers for the ``brk()``,
+ ``mmap()`` and ``mremap()`` system calls.
+
+2. User addresses accessed by the kernel (e.g. ``write()``). This ABI
+ relaxation is disabled by default and the application thread needs to
+ explicitly enable it via ``prctl()`` as follows:
+
+ - ``PR_SET_TAGGED_ADDR_CTRL``: enable or disable the AArch64 Tagged
+ Address ABI for the calling thread.
+
+ The ``(unsigned int) arg2`` argument is a bit mask describing the
+ control mode used:
+
+ - ``PR_TAGGED_ADDR_ENABLE``: enable AArch64 Tagged Address ABI.
+ Default status is disabled.
+
+ Arguments ``arg3``, ``arg4``, and ``arg5`` must be 0.
+
+ - ``PR_GET_TAGGED_ADDR_CTRL``: get the status of the AArch64 Tagged
+ Address ABI for the calling thread.
+
+ Arguments ``arg2``, ``arg3``, ``arg4``, and ``arg5`` must be 0.
+
+ The ABI properties described above are thread-scoped, inherited on
+ clone() and fork() and cleared on exec().
+
+ Calling ``prctl(PR_SET_TAGGED_ADDR_CTRL, PR_TAGGED_ADDR_ENABLE, 0, 0, 0)``
+ returns ``-EINVAL`` if the AArch64 Tagged Address ABI is globally
+ disabled by ``sysctl abi.tagged_addr_disabled=1``. The default
+ ``sysctl abi.tagged_addr_disabled`` configuration is 0.
+
+When the AArch64 Tagged Address ABI is enabled for a thread, the
+following behaviours are guaranteed:
+
+- All syscalls except the cases mentioned in section 3 can accept any
+ valid tagged pointer.
+
+- The syscall behaviour is undefined for invalid tagged pointers: it may
+ result in an error code being returned, a (fatal) signal being raised,
+ or other modes of failure.
+
+- The syscall behaviour for a valid tagged pointer is the same as for
+ the corresponding untagged pointer.
+
+
+A definition of the meaning of tagged pointers on AArch64 can be found
+in Documentation/arm64/tagged-pointers.rst.
+
+3. AArch64 Tagged Address ABI Exceptions
+-----------------------------------------
+
+The following system call parameters must be untagged regardless of the
+ABI relaxation:
+
+- ``prctl()`` other than pointers to user data either passed directly or
+ indirectly as arguments to be accessed by the kernel.
+
+- ``ioctl()`` other than pointers to user data either passed directly or
+ indirectly as arguments to be accessed by the kernel.
+
+- ``shmat()`` and ``shmdt()``.
+
+Any attempt to use non-zero tagged pointers may result in an error code
+being returned, a (fatal) signal being raised, or other modes of
+failure.
+
+4. Example of correct usage
+---------------------------
+.. code-block:: c
+
+ #include <stdlib.h>
+ #include <string.h>
+ #include <unistd.h>
+ #include <sys/mman.h>
+ #include <sys/prctl.h>
+
+ #define PR_SET_TAGGED_ADDR_CTRL 55
+ #define PR_TAGGED_ADDR_ENABLE (1UL << 0)
+
+ #define TAG_SHIFT 56
+
+ int main(void)
+ {
+ int tbi_enabled = 0;
+ unsigned long tag = 0;
+ char *ptr;
+
+ /* check/enable the tagged address ABI */
+ if (!prctl(PR_SET_TAGGED_ADDR_CTRL, PR_TAGGED_ADDR_ENABLE, 0, 0, 0))
+ tbi_enabled = 1;
+
+ /* memory allocation */
+ ptr = mmap(NULL, sysconf(_SC_PAGE_SIZE), PROT_READ | PROT_WRITE,
+ MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+ if (ptr == MAP_FAILED)
+ return 1;
+
+ /* set a non-zero tag if the ABI is available */
+ if (tbi_enabled)
+ tag = rand() & 0xff;
+ ptr = (char *)((unsigned long)ptr | (tag << TAG_SHIFT));
+
+ /* memory access to a tagged address */
+ strcpy(ptr, "tagged pointer\n");
+
+ /* syscall with a tagged pointer */
+ write(1, ptr, strlen(ptr));
+
+ return 0;
+ }
diff --git a/Documentation/arm64/tagged-pointers.rst b/Documentation/arm64/tagged-pointers.rst
new file mode 100644
index 0000000..eab4323
--- /dev/null
+++ b/Documentation/arm64/tagged-pointers.rst
@@ -0,0 +1,75 @@
+=========================================
+Tagged virtual addresses in AArch64 Linux
+=========================================
+
+Author: Will Deacon <will.deacon@arm.com>
+
+Date : 12 June 2013
+
+This document briefly describes the provision of tagged virtual
+addresses in the AArch64 translation system and their potential uses
+in AArch64 Linux.
+
+The kernel configures the translation tables so that translations made
+via TTBR0 (i.e. userspace mappings) have the top byte (bits 63:56) of
+the virtual address ignored by the translation hardware. This frees up
+this byte for application use.
+
+
+Passing tagged addresses to the kernel
+--------------------------------------
+
+All interpretation of userspace memory addresses by the kernel assumes
+an address tag of 0x00, unless the application enables the AArch64
+Tagged Address ABI explicitly
+(Documentation/arm64/tagged-address-abi.rst).
+
+This includes, but is not limited to, addresses found in:
+
+ - pointer arguments to system calls, including pointers in structures
+ passed to system calls,
+
+ - the stack pointer (sp), e.g. when interpreting it to deliver a
+ signal,
+
+ - the frame pointer (x29) and frame records, e.g. when interpreting
+ them to generate a backtrace or call graph.
+
+Using non-zero address tags in any of these locations when the
+userspace application did not enable the AArch64 Tagged Address ABI may
+result in an error code being returned, a (fatal) signal being raised,
+or other modes of failure.
+
+For these reasons, when the AArch64 Tagged Address ABI is disabled,
+passing non-zero address tags to the kernel via system calls is
+forbidden, and using a non-zero address tag for sp is strongly
+discouraged.
+
+Programs maintaining a frame pointer and frame records that use non-zero
+address tags may suffer impaired or inaccurate debug and profiling
+visibility.
+
+
+Preserving tags
+---------------
+
+Non-zero tags are not preserved when delivering signals. This means that
+signal handlers in applications making use of tags cannot rely on the
+tag information for user virtual addresses being maintained for fields
+inside siginfo_t. One exception to this rule is for signals raised in
+response to watchpoint debug exceptions, where the tag information will
+be preserved.
+
+The architecture prevents the use of a tagged PC, so the upper byte will
+be set to a sign-extension of bit 55 on exception return.
+
+This behaviour is maintained when the AArch64 Tagged Address ABI is
+enabled.
+
+
+Other considerations
+--------------------
+
+Special care should be taken when using tagged pointers, since it is
+likely that C compilers will not hazard two virtual addresses differing
+only in the upper byte.
diff --git a/Documentation/arm64/tagged-pointers.txt b/Documentation/arm64/tagged-pointers.txt
index a25a99e..a800092 100644
--- a/Documentation/arm64/tagged-pointers.txt
+++ b/Documentation/arm64/tagged-pointers.txt
@@ -18,7 +18,9 @@
--------------------------------------
All interpretation of userspace memory addresses by the kernel assumes
-an address tag of 0x00.
+an address tag of 0x00, unless the application enables the AArch64
+Tagged Address ABI explicitly
+(Documentation/arm64/tagged-address-abi.rst).
This includes, but is not limited to, addresses found in:
@@ -31,13 +33,15 @@
- the frame pointer (x29) and frame records, e.g. when interpreting
them to generate a backtrace or call graph.
-Using non-zero address tags in any of these locations may result in an
-error code being returned, a (fatal) signal being raised, or other modes
-of failure.
+Using non-zero address tags in any of these locations when the
+userspace application did not enable the AArch64 Tagged Address ABI may
+result in an error code being returned, a (fatal) signal being raised,
+or other modes of failure.
-For these reasons, passing non-zero address tags to the kernel via
-system calls is forbidden, and using a non-zero address tag for sp is
-strongly discouraged.
+For these reasons, when the AArch64 Tagged Address ABI is disabled,
+passing non-zero address tags to the kernel via system calls is
+forbidden, and using a non-zero address tag for sp is strongly
+discouraged.
Programs maintaining a frame pointer and frame records that use non-zero
address tags may suffer impaired or inaccurate debug and profiling
@@ -57,6 +61,9 @@
The architecture prevents the use of a tagged PC, so the upper byte will
be set to a sign-extension of bit 55 on exception return.
+This behaviour is maintained when the AArch64 Tagged Address ABI is
+enabled.
+
Other considerations
--------------------
diff --git a/Documentation/block/inline-encryption.rst b/Documentation/block/inline-encryption.rst
new file mode 100644
index 0000000..330106b
--- /dev/null
+++ b/Documentation/block/inline-encryption.rst
@@ -0,0 +1,183 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=================
+Inline Encryption
+=================
+
+Objective
+=========
+
+We want to support inline encryption (IE) in the kernel.
+To allow for testing, we also want a crypto API fallback when actual
+IE hardware is absent. We also want IE to work with layered devices
+like dm and loopback (i.e. we want to be able to use the IE hardware
+of the underlying devices if present, or else fall back to crypto API
+en/decryption).
+
+
+Constraints and notes
+=====================
+
+- IE hardware have a limited number of "keyslots" that can be programmed
+ with an encryption context (key, algorithm, data unit size, etc.) at any time.
+ One can specify a keyslot in a data request made to the device, and the
+ device will en/decrypt the data using the encryption context programmed into
+ that specified keyslot. When possible, we want to make multiple requests with
+ the same encryption context share the same keyslot.
+
+- We need a way for filesystems to specify an encryption context to use for
+ en/decrypting a struct bio, and a device driver (like UFS) needs to be able
+ to use that encryption context when it processes the bio.
+
+- We need a way for device drivers to expose their capabilities in a unified
+ way to the upper layers.
+
+
+Design
+======
+
+We add a struct bio_crypt_ctx to struct bio that can represent an
+encryption context, because we need to be able to pass this encryption
+context from the FS layer to the device driver to act upon.
+
+While IE hardware works on the notion of keyslots, the FS layer has no
+knowledge of keyslots - it simply wants to specify an encryption context to
+use while en/decrypting a bio.
+
+We introduce a keyslot manager (KSM) that handles the translation from
+encryption contexts specified by the FS to keyslots on the IE hardware.
+This KSM also serves as the way IE hardware can expose their capabilities to
+upper layers. The generic mode of operation is: each device driver that wants
+to support IE will construct a KSM and set it up in its struct request_queue.
+Upper layers that want to use IE on this device can then use this KSM in
+the device's struct request_queue to translate an encryption context into
+a keyslot. The presence of the KSM in the request queue shall be used to mean
+that the device supports IE.
+
+On the device driver end of the interface, the device driver needs to tell the
+KSM how to actually manipulate the IE hardware in the device to do things like
+programming the crypto key into the IE hardware into a particular keyslot. All
+this is achieved through the :c:type:`struct keyslot_mgmt_ll_ops` that the
+device driver passes to the KSM when creating it.
+
+It uses refcounts to track which keyslots are idle (either they have no
+encryption context programmed, or there are no in-flight struct bios
+referencing that keyslot). When a new encryption context needs a keyslot, it
+tries to find a keyslot that has already been programmed with the same
+encryption context, and if there is no such keyslot, it evicts the least
+recently used idle keyslot and programs the new encryption context into that
+one. If no idle keyslots are available, then the caller will sleep until there
+is at least one.
+
+
+Blk-crypto
+==========
+
+The above is sufficient for simple cases, but does not work if there is a
+need for a crypto API fallback, or if we are want to use IE with layered
+devices. To these ends, we introduce blk-crypto. Blk-crypto allows us to
+present a unified view of encryption to the FS (so FS only needs to specify
+an encryption context and not worry about keyslots at all), and blk-crypto
+can decide whether to delegate the en/decryption to IE hardware or to the
+crypto API. Blk-crypto maintains an internal KSM that serves as the crypto
+API fallback.
+
+Blk-crypto needs to ensure that the encryption context is programmed into the
+"correct" keyslot manager for IE. If a bio is submitted to a layered device
+that eventually passes the bio down to a device that really does support IE, we
+want the encryption context to be programmed into a keyslot for the KSM of the
+device with IE support. However, blk-crypto does not know a priori whether a
+particular device is the final device in the layering structure for a bio or
+not. So in the case that a particular device does not support IE, since it is
+possibly the final destination device for the bio, if the bio requires
+encryption (i.e. the bio is doing a write operation), blk-crypto must fallback
+to the crypto API *before* sending the bio to the device.
+
+Blk-crypto ensures that:
+
+- The bio's encryption context is programmed into a keyslot in the KSM of the
+ request queue that the bio is being submitted to (or the crypto API fallback
+ KSM if the request queue doesn't have a KSM), and that the ``bc_ksm``
+ in the ``bi_crypt_context`` is set to this KSM
+
+- That the bio has its own individual reference to the keyslot in this KSM.
+ Once the bio passes through blk-crypto, its encryption context is programmed
+ in some KSM. The "its own individual reference to the keyslot" ensures that
+ keyslots can be released by each bio independently of other bios while
+ ensuring that the bio has a valid reference to the keyslot when, for e.g., the
+ crypto API fallback KSM in blk-crypto performs crypto on the device's behalf.
+ The individual references are ensured by increasing the refcount for the
+ keyslot in the ``bc_ksm`` when a bio with a programmed encryption
+ context is cloned.
+
+
+What blk-crypto does on bio submission
+--------------------------------------
+
+**Case 1:** blk-crypto is given a bio with only an encryption context that hasn't
+been programmed into any keyslot in any KSM (for e.g. a bio from the FS).
+ In this case, blk-crypto will program the encryption context into the KSM of the
+ request queue the bio is being submitted to (and if this KSM does not exist,
+ then it will program it into blk-crypto's internal KSM for crypto API
+ fallback). The KSM that this encryption context was programmed into is stored
+ as the ``bc_ksm`` in the bio's ``bi_crypt_context``.
+
+**Case 2:** blk-crypto is given a bio whose encryption context has already been
+programmed into a keyslot in the *crypto API fallback* KSM.
+ In this case, blk-crypto does nothing; it treats the bio as not having
+ specified an encryption context. Note that we cannot do here what we will do
+ in Case 3 because we would have already encrypted the bio via the crypto API
+ by this point.
+
+**Case 3:** blk-crypto is given a bio whose encryption context has already been
+programmed into a keyslot in some KSM (that is *not* the crypto API fallback
+KSM).
+ In this case, blk-crypto first releases that keyslot from that KSM and then
+ treats the bio as in Case 1.
+
+This way, when a device driver is processing a bio, it can be sure that
+the bio's encryption context has been programmed into some KSM (either the
+device driver's request queue's KSM, or blk-crypto's crypto API fallback KSM).
+It then simply needs to check if the bio's ``bc_ksm`` is the device's
+request queue's KSM. If so, then it should proceed with IE. If not, it should
+simply do nothing with respect to crypto, because some other KSM (perhaps the
+blk-crypto crypto API fallback KSM) is handling the en/decryption.
+
+Blk-crypto will release the keyslot that is being held by the bio (and also
+decrypt it if the bio is using the crypto API fallback KSM) once
+``bio_remaining_done`` returns true for the bio.
+
+
+Layered Devices
+===============
+
+Layered devices that wish to support IE need to create their own keyslot
+manager for their request queue, and expose whatever functionality they choose.
+When a layered device wants to pass a bio to another layer (either by
+resubmitting the same bio, or by submitting a clone), it doesn't need to do
+anything special because the bio (or the clone) will once again pass through
+blk-crypto, which will work as described in Case 3. If a layered device wants
+for some reason to do the IO by itself instead of passing it on to a child
+device, but it also chose to expose IE capabilities by setting up a KSM in its
+request queue, it is then responsible for en/decrypting the data itself. In
+such cases, the device can choose to call the blk-crypto function
+``blk_crypto_fallback_to_kernel_crypto_api`` (TODO: Not yet implemented), which will
+cause the en/decryption to be done via the crypto API fallback.
+
+
+Future Optimizations for layered devices
+========================================
+
+Creating a keyslot manager for the layered device uses up memory for each
+keyslot, and in general, a layered device (like dm-linear) merely passes the
+request on to a "child" device, so the keyslots in the layered device itself
+might be completely unused. We can instead define a new type of KSM; the
+"passthrough KSM", that layered devices can use to let blk-crypto know that
+this layered device *will* pass the bio to some child device (and hence
+through blk-crypto again, at which point blk-crypto can program the encryption
+context, instead of programming it into the layered device's KSM). Again, if
+the device "lies" and decides to do the IO itself instead of passing it on to
+a child device, it is responsible for doing the en/decryption (and can choose
+to call ``blk_crypto_fallback_to_kernel_crypto_api``). Another use case for the
+"passthrough KSM" is for IE devices that want to manage their own keyslots/do
+not have a limited number of keyslots.
diff --git a/Documentation/blockdev/zram.txt b/Documentation/blockdev/zram.txt
index 875b2b5..6e5c2bb 100644
--- a/Documentation/blockdev/zram.txt
+++ b/Documentation/blockdev/zram.txt
@@ -156,19 +156,23 @@
A brief description of exported device attributes. For more details please
read Documentation/ABI/testing/sysfs-block-zram.
-Name access description
----- ------ -----------
-disksize RW show and set the device's disk size
-initstate RO shows the initialization state of the device
-reset WO trigger device reset
-mem_used_max WO reset the `mem_used_max' counter (see later)
-mem_limit WO specifies the maximum amount of memory ZRAM can use
- to store the compressed data
-max_comp_streams RW the number of possible concurrent compress operations
-comp_algorithm RW show and change the compression algorithm
-compact WO trigger memory compaction
-debug_stat RO this file is used for zram debugging purposes
-backing_dev RW set up backend storage for zram to write out
+Name access description
+---- ------ -----------
+disksize RW show and set the device's disk size
+initstate RO shows the initialization state of the device
+reset WO trigger device reset
+mem_used_max WO reset the `mem_used_max' counter (see later)
+mem_limit WO specifies the maximum amount of memory ZRAM can use
+ to store the compressed data
+writeback_limit WO specifies the maximum amount of write IO zram can
+ write out to backing device as 4KB unit
+writeback_limit_enable RW show and set writeback_limit feature
+max_comp_streams RW the number of possible concurrent compress operations
+comp_algorithm RW show and change the compression algorithm
+compact WO trigger memory compaction
+debug_stat RO this file is used for zram debugging purposes
+backing_dev RW set up backend storage for zram to write out
+idle WO mark allocated slot as idle
User space is advised to use the following files to read the device statistics.
@@ -220,6 +224,17 @@
pages_compacted the number of pages freed during compaction
huge_pages the number of incompressible pages
+File /sys/block/zram<id>/bd_stat
+
+The stat file represents device's backing device statistics. It consists of
+a single line of text and contains the following stats separated by whitespace:
+ bd_count size of data written in backing device.
+ Unit: 4K bytes
+ bd_reads the number of reads from backing device
+ Unit: 4K bytes
+ bd_writes the number of writes to backing device
+ Unit: 4K bytes
+
9) Deactivate:
swapoff /dev/zram0
umount /dev/zram1
@@ -237,11 +252,79 @@
= writeback
-With incompressible pages, there is no memory saving with zram.
-Instead, with CONFIG_ZRAM_WRITEBACK, zram can write incompressible page
+With CONFIG_ZRAM_WRITEBACK, zram can write idle/incompressible page
to backing storage rather than keeping it in memory.
-User should set up backing device via /sys/block/zramX/backing_dev
-before disksize setting.
+To use the feature, admin should set up backing device via
+
+ "echo /dev/sda5 > /sys/block/zramX/backing_dev"
+
+before disksize setting. It supports only partition at this moment.
+If admin want to use incompressible page writeback, they could do via
+
+ "echo huge > /sys/block/zramX/write"
+
+To use idle page writeback, first, user need to declare zram pages
+as idle.
+
+ "echo all > /sys/block/zramX/idle"
+
+From now on, any pages on zram are idle pages. The idle mark
+will be removed until someone request access of the block.
+IOW, unless there is access request, those pages are still idle pages.
+
+Admin can request writeback of those idle pages at right timing via
+
+ "echo idle > /sys/block/zramX/writeback"
+
+With the command, zram writeback idle pages from memory to the storage.
+
+If there are lots of write IO with flash device, potentially, it has
+flash wearout problem so that admin needs to design write limitation
+to guarantee storage health for entire product life.
+
+To overcome the concern, zram supports "writeback_limit" feature.
+The "writeback_limit_enable"'s default value is 0 so that it doesn't limit
+any writeback. IOW, if admin want to apply writeback budget, he should
+enable writeback_limit_enable via
+
+ $ echo 1 > /sys/block/zramX/writeback_limit_enable
+
+Once writeback_limit_enable is set, zram doesn't allow any writeback
+until admin set the budget via /sys/block/zramX/writeback_limit.
+
+(If admin doesn't enable writeback_limit_enable, writeback_limit's value
+assigned via /sys/block/zramX/writeback_limit is meaninless.)
+
+If admin want to limit writeback as per-day 400M, he could do it
+like below.
+
+ $ MB_SHIFT=20
+ $ 4K_SHIFT=12
+ $ echo $((400<<MB_SHIFT>>4K_SHIFT)) > \
+ /sys/block/zram0/writeback_limit.
+ $ echo 1 > /sys/block/zram0/writeback_limit_enable
+
+If admin want to allow further write again once the bugdet is exausted,
+he could do it like below
+
+ $ echo $((400<<MB_SHIFT>>4K_SHIFT)) > \
+ /sys/block/zram0/writeback_limit
+
+If admin want to see remaining writeback budget since he set,
+
+ $ cat /sys/block/zramX/writeback_limit
+
+If admin want to disable writeback limit, he could do
+
+ $ echo 0 > /sys/block/zramX/writeback_limit_enable
+
+The writeback_limit count will reset whenever you reset zram(e.g.,
+system reboot, echo 1 > /sys/block/zramX/reset) so keeping how many of
+writeback happened until you reset the zram to allocate extra writeback
+budget in next setting is user's job.
+
+If admin want to measure writeback count in a certain period, he could
+know it via /sys/block/zram0/bd_stat's 3rd column.
= memory tracking
@@ -251,16 +334,17 @@
If you enable the feature, you could see block state via
/sys/kernel/debug/zram/zram0/block_state". The output is as follows,
- 300 75.033841 .wh
- 301 63.806904 s..
- 302 63.806919 ..h
+ 300 75.033841 .wh.
+ 301 63.806904 s...
+ 302 63.806919 ..hi
First column is zram's block index.
Second column is access time since the system was booted
Third column is state of the block.
(s: same page
w: written page to backing store
-h: huge page)
+h: huge page
+i: idle page)
First line of above example says 300th block is accessed at 75.033841sec
and the block's state is huge so it is written back to the backing
diff --git a/Documentation/core-api/timekeeping.rst b/Documentation/core-api/timekeeping.rst
index 93cbeb9..491a93c 100644
--- a/Documentation/core-api/timekeeping.rst
+++ b/Documentation/core-api/timekeeping.rst
@@ -99,16 +99,20 @@
Some additional variants exist for more specialized cases:
-.. c:function:: ktime_t ktime_get_coarse_boottime( void )
+.. c:function:: ktime_t ktime_get_coarse( void )
+ ktime_t ktime_get_coarse_boottime( void )
ktime_t ktime_get_coarse_real( void )
ktime_t ktime_get_coarse_clocktai( void )
- ktime_t ktime_get_coarse_raw( void )
+
+.. c:function:: u64 ktime_get_coarse_ns( void )
+ u64 ktime_get_coarse_boottime_ns( void )
+ u64 ktime_get_coarse_real_ns( void )
+ u64 ktime_get_coarse_clocktai_ns( void )
.. c:function:: void ktime_get_coarse_ts64( struct timespec64 * )
void ktime_get_coarse_boottime_ts64( struct timespec64 * )
void ktime_get_coarse_real_ts64( struct timespec64 * )
void ktime_get_coarse_clocktai_ts64( struct timespec64 * )
- void ktime_get_coarse_raw_ts64( struct timespec64 * )
These are quicker than the non-coarse versions, but less accurate,
corresponding to CLOCK_MONONOTNIC_COARSE and CLOCK_REALTIME_COARSE
diff --git a/Documentation/dev-tools/gcov.rst b/Documentation/dev-tools/gcov.rst
index 69a7d90..46aae52 100644
--- a/Documentation/dev-tools/gcov.rst
+++ b/Documentation/dev-tools/gcov.rst
@@ -34,10 +34,6 @@
CONFIG_DEBUG_FS=y
CONFIG_GCOV_KERNEL=y
-select the gcc's gcov format, default is autodetect based on gcc version::
-
- CONFIG_GCOV_FORMAT_AUTODETECT=y
-
and to get coverage data for the entire kernel::
CONFIG_GCOV_PROFILE_ALL=y
@@ -169,6 +165,20 @@
[user@build] gcov -o /tmp/coverage/tmp/out/init main.c
+Note on compilers
+-----------------
+
+GCC and LLVM gcov tools are not necessarily compatible. Use gcov_ to work with
+GCC-generated .gcno and .gcda files, and use llvm-cov_ for Clang.
+
+.. _gcov: http://gcc.gnu.org/onlinedocs/gcc/Gcov.html
+.. _llvm-cov: https://llvm.org/docs/CommandGuide/llvm-cov.html
+
+Build differences between GCC and Clang gcov are handled by Kconfig. It
+automatically selects the appropriate gcov format depending on the detected
+toolchain.
+
+
Troubleshooting
---------------
diff --git a/Documentation/dev-tools/kasan.rst b/Documentation/dev-tools/kasan.rst
index aabc873..b72d07d 100644
--- a/Documentation/dev-tools/kasan.rst
+++ b/Documentation/dev-tools/kasan.rst
@@ -4,15 +4,25 @@
Overview
--------
-KernelAddressSANitizer (KASAN) is a dynamic memory error detector. It provides
-a fast and comprehensive solution for finding use-after-free and out-of-bounds
-bugs.
+KernelAddressSANitizer (KASAN) is a dynamic memory error detector designed to
+find out-of-bound and use-after-free bugs. KASAN has two modes: generic KASAN
+(similar to userspace ASan) and software tag-based KASAN (similar to userspace
+HWASan).
-KASAN uses compile-time instrumentation for checking every memory access,
-therefore you will need a GCC version 4.9.2 or later. GCC 5.0 or later is
-required for detection of out-of-bounds accesses to stack or global variables.
+KASAN uses compile-time instrumentation to insert validity checks before every
+memory access, and therefore requires a compiler version that supports that.
-Currently KASAN is supported only for the x86_64 and arm64 architectures.
+Generic KASAN is supported in both GCC and Clang. With GCC it requires version
+4.9.2 or later for basic support and version 5.0 or later for detection of
+out-of-bounds accesses for stack and global variables and for inline
+instrumentation mode (see the Usage section). With Clang it requires version
+7.0.0 or later and it doesn't support detection of out-of-bounds accesses for
+global variables yet.
+
+Tag-based KASAN is only supported in Clang and requires version 7.0.0 or later.
+
+Currently generic KASAN is supported for the x86_64, arm64, xtensa and s390
+architectures, and tag-based KASAN is supported only for arm64.
Usage
-----
@@ -21,12 +31,14 @@
CONFIG_KASAN = y
-and choose between CONFIG_KASAN_OUTLINE and CONFIG_KASAN_INLINE. Outline and
-inline are compiler instrumentation types. The former produces smaller binary
-the latter is 1.1 - 2 times faster. Inline instrumentation requires a GCC
-version 5.0 or later.
+and choose between CONFIG_KASAN_GENERIC (to enable generic KASAN) and
+CONFIG_KASAN_SW_TAGS (to enable software tag-based KASAN).
-KASAN works with both SLUB and SLAB memory allocators.
+You also need to choose between CONFIG_KASAN_OUTLINE and CONFIG_KASAN_INLINE.
+Outline and inline are compiler instrumentation types. The former produces
+smaller binary while the latter is 1.1 - 2 times faster.
+
+Both KASAN modes work with both SLUB and SLAB memory allocators.
For better bug detection and nicer reporting, enable CONFIG_STACKTRACE.
To disable instrumentation for specific files or directories, add a line
@@ -43,85 +55,85 @@
Error reports
~~~~~~~~~~~~~
-A typical out of bounds access report looks like this::
+A typical out-of-bounds access generic KASAN report looks like this::
==================================================================
- BUG: AddressSanitizer: out of bounds access in kmalloc_oob_right+0x65/0x75 [test_kasan] at addr ffff8800693bc5d3
- Write of size 1 by task modprobe/1689
- =============================================================================
- BUG kmalloc-128 (Not tainted): kasan error
- -----------------------------------------------------------------------------
+ BUG: KASAN: slab-out-of-bounds in kmalloc_oob_right+0xa8/0xbc [test_kasan]
+ Write of size 1 at addr ffff8801f44ec37b by task insmod/2760
- Disabling lock debugging due to kernel taint
- INFO: Allocated in kmalloc_oob_right+0x3d/0x75 [test_kasan] age=0 cpu=0 pid=1689
- __slab_alloc+0x4b4/0x4f0
- kmem_cache_alloc_trace+0x10b/0x190
- kmalloc_oob_right+0x3d/0x75 [test_kasan]
- init_module+0x9/0x47 [test_kasan]
- do_one_initcall+0x99/0x200
- load_module+0x2cb3/0x3b20
- SyS_finit_module+0x76/0x80
- system_call_fastpath+0x12/0x17
- INFO: Slab 0xffffea0001a4ef00 objects=17 used=7 fp=0xffff8800693bd728 flags=0x100000000004080
- INFO: Object 0xffff8800693bc558 @offset=1368 fp=0xffff8800693bc720
-
- Bytes b4 ffff8800693bc548: 00 00 00 00 00 00 00 00 5a 5a 5a 5a 5a 5a 5a 5a ........ZZZZZZZZ
- Object ffff8800693bc558: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
- Object ffff8800693bc568: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
- Object ffff8800693bc578: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
- Object ffff8800693bc588: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
- Object ffff8800693bc598: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
- Object ffff8800693bc5a8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
- Object ffff8800693bc5b8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
- Object ffff8800693bc5c8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 kkkkkkkkkkkkkkk.
- Redzone ffff8800693bc5d8: cc cc cc cc cc cc cc cc ........
- Padding ffff8800693bc718: 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZ
- CPU: 0 PID: 1689 Comm: modprobe Tainted: G B 3.18.0-rc1-mm1+ #98
- Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.7.5-0-ge51488c-20140602_164612-nilsson.home.kraxel.org 04/01/2014
- ffff8800693bc000 0000000000000000 ffff8800693bc558 ffff88006923bb78
- ffffffff81cc68ae 00000000000000f3 ffff88006d407600 ffff88006923bba8
- ffffffff811fd848 ffff88006d407600 ffffea0001a4ef00 ffff8800693bc558
+ CPU: 1 PID: 2760 Comm: insmod Not tainted 4.19.0-rc3+ #698
+ Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
Call Trace:
- [<ffffffff81cc68ae>] dump_stack+0x46/0x58
- [<ffffffff811fd848>] print_trailer+0xf8/0x160
- [<ffffffffa00026a7>] ? kmem_cache_oob+0xc3/0xc3 [test_kasan]
- [<ffffffff811ff0f5>] object_err+0x35/0x40
- [<ffffffffa0002065>] ? kmalloc_oob_right+0x65/0x75 [test_kasan]
- [<ffffffff8120b9fa>] kasan_report_error+0x38a/0x3f0
- [<ffffffff8120a79f>] ? kasan_poison_shadow+0x2f/0x40
- [<ffffffff8120b344>] ? kasan_unpoison_shadow+0x14/0x40
- [<ffffffff8120a79f>] ? kasan_poison_shadow+0x2f/0x40
- [<ffffffffa00026a7>] ? kmem_cache_oob+0xc3/0xc3 [test_kasan]
- [<ffffffff8120a995>] __asan_store1+0x75/0xb0
- [<ffffffffa0002601>] ? kmem_cache_oob+0x1d/0xc3 [test_kasan]
- [<ffffffffa0002065>] ? kmalloc_oob_right+0x65/0x75 [test_kasan]
- [<ffffffffa0002065>] kmalloc_oob_right+0x65/0x75 [test_kasan]
- [<ffffffffa00026b0>] init_module+0x9/0x47 [test_kasan]
- [<ffffffff810002d9>] do_one_initcall+0x99/0x200
- [<ffffffff811e4e5c>] ? __vunmap+0xec/0x160
- [<ffffffff81114f63>] load_module+0x2cb3/0x3b20
- [<ffffffff8110fd70>] ? m_show+0x240/0x240
- [<ffffffff81115f06>] SyS_finit_module+0x76/0x80
- [<ffffffff81cd3129>] system_call_fastpath+0x12/0x17
+ dump_stack+0x94/0xd8
+ print_address_description+0x73/0x280
+ kasan_report+0x144/0x187
+ __asan_report_store1_noabort+0x17/0x20
+ kmalloc_oob_right+0xa8/0xbc [test_kasan]
+ kmalloc_tests_init+0x16/0x700 [test_kasan]
+ do_one_initcall+0xa5/0x3ae
+ do_init_module+0x1b6/0x547
+ load_module+0x75df/0x8070
+ __do_sys_init_module+0x1c6/0x200
+ __x64_sys_init_module+0x6e/0xb0
+ do_syscall_64+0x9f/0x2c0
+ entry_SYSCALL_64_after_hwframe+0x44/0xa9
+ RIP: 0033:0x7f96443109da
+ RSP: 002b:00007ffcf0b51b08 EFLAGS: 00000202 ORIG_RAX: 00000000000000af
+ RAX: ffffffffffffffda RBX: 000055dc3ee521a0 RCX: 00007f96443109da
+ RDX: 00007f96445cff88 RSI: 0000000000057a50 RDI: 00007f9644992000
+ RBP: 000055dc3ee510b0 R08: 0000000000000003 R09: 0000000000000000
+ R10: 00007f964430cd0a R11: 0000000000000202 R12: 00007f96445cff88
+ R13: 000055dc3ee51090 R14: 0000000000000000 R15: 0000000000000000
+
+ Allocated by task 2760:
+ save_stack+0x43/0xd0
+ kasan_kmalloc+0xa7/0xd0
+ kmem_cache_alloc_trace+0xe1/0x1b0
+ kmalloc_oob_right+0x56/0xbc [test_kasan]
+ kmalloc_tests_init+0x16/0x700 [test_kasan]
+ do_one_initcall+0xa5/0x3ae
+ do_init_module+0x1b6/0x547
+ load_module+0x75df/0x8070
+ __do_sys_init_module+0x1c6/0x200
+ __x64_sys_init_module+0x6e/0xb0
+ do_syscall_64+0x9f/0x2c0
+ entry_SYSCALL_64_after_hwframe+0x44/0xa9
+
+ Freed by task 815:
+ save_stack+0x43/0xd0
+ __kasan_slab_free+0x135/0x190
+ kasan_slab_free+0xe/0x10
+ kfree+0x93/0x1a0
+ umh_complete+0x6a/0xa0
+ call_usermodehelper_exec_async+0x4c3/0x640
+ ret_from_fork+0x35/0x40
+
+ The buggy address belongs to the object at ffff8801f44ec300
+ which belongs to the cache kmalloc-128 of size 128
+ The buggy address is located 123 bytes inside of
+ 128-byte region [ffff8801f44ec300, ffff8801f44ec380)
+ The buggy address belongs to the page:
+ page:ffffea0007d13b00 count:1 mapcount:0 mapping:ffff8801f7001640 index:0x0
+ flags: 0x200000000000100(slab)
+ raw: 0200000000000100 ffffea0007d11dc0 0000001a0000001a ffff8801f7001640
+ raw: 0000000000000000 0000000080150015 00000001ffffffff 0000000000000000
+ page dumped because: kasan: bad access detected
+
Memory state around the buggy address:
- ffff8800693bc300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
- ffff8800693bc380: fc fc 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
- ffff8800693bc400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
- ffff8800693bc480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
- ffff8800693bc500: fc fc fc fc fc fc fc fc fc fc fc 00 00 00 00 00
- >ffff8800693bc580: 00 00 00 00 00 00 00 00 00 00 03 fc fc fc fc fc
- ^
- ffff8800693bc600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
- ffff8800693bc680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
- ffff8800693bc700: fc fc fc fc fb fb fb fb fb fb fb fb fb fb fb fb
- ffff8800693bc780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
- ffff8800693bc800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
+ ffff8801f44ec200: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
+ ffff8801f44ec280: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
+ >ffff8801f44ec300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03
+ ^
+ ffff8801f44ec380: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
+ ffff8801f44ec400: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
==================================================================
-The header of the report discribe what kind of bug happened and what kind of
-access caused it. It's followed by the description of the accessed slub object
-(see 'SLUB Debug output' section in Documentation/vm/slub.rst for details) and
-the description of the accessed memory page.
+The header of the report provides a short summary of what kind of bug happened
+and what kind of access caused it. It's followed by a stack trace of the bad
+access, a stack trace of where the accessed memory was allocated (in case bad
+access happens on a slab object), and a stack trace of where the object was
+freed (in case of a use-after-free bug report). Next comes a description of
+the accessed slab object and information about the accessed memory page.
In the last section the report shows memory state around the accessed address.
Reading this part requires some understanding of how KASAN works.
@@ -138,18 +150,24 @@
In the report above the arrows point to the shadow byte 03, which means that
the accessed address is partially accessible.
+For tag-based KASAN this last report section shows the memory tags around the
+accessed address (see Implementation details section).
+
Implementation details
----------------------
+Generic KASAN
+~~~~~~~~~~~~~
+
From a high level, our approach to memory error detection is similar to that
of kmemcheck: use shadow memory to record whether each byte of memory is safe
-to access, and use compile-time instrumentation to check shadow memory on each
-memory access.
+to access, and use compile-time instrumentation to insert checks of shadow
+memory on each memory access.
-AddressSanitizer dedicates 1/8 of kernel memory to its shadow memory
-(e.g. 16TB to cover 128TB on x86_64) and uses direct mapping with a scale and
-offset to translate a memory address to its corresponding shadow address.
+Generic KASAN dedicates 1/8th of kernel memory to its shadow memory (e.g. 16TB
+to cover 128TB on x86_64) and uses direct mapping with a scale and offset to
+translate a memory address to its corresponding shadow address.
Here is the function which translates an address to its corresponding shadow
address::
@@ -162,12 +180,38 @@
where ``KASAN_SHADOW_SCALE_SHIFT = 3``.
-Compile-time instrumentation used for checking memory accesses. Compiler inserts
-function calls (__asan_load*(addr), __asan_store*(addr)) before each memory
-access of size 1, 2, 4, 8 or 16. These functions check whether memory access is
-valid or not by checking corresponding shadow memory.
+Compile-time instrumentation is used to insert memory access checks. Compiler
+inserts function calls (__asan_load*(addr), __asan_store*(addr)) before each
+memory access of size 1, 2, 4, 8 or 16. These functions check whether memory
+access is valid or not by checking corresponding shadow memory.
GCC 5.0 has possibility to perform inline instrumentation. Instead of making
function calls GCC directly inserts the code to check the shadow memory.
This option significantly enlarges kernel but it gives x1.1-x2 performance
boost over outline instrumented kernel.
+
+Software tag-based KASAN
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+Tag-based KASAN uses the Top Byte Ignore (TBI) feature of modern arm64 CPUs to
+store a pointer tag in the top byte of kernel pointers. Like generic KASAN it
+uses shadow memory to store memory tags associated with each 16-byte memory
+cell (therefore it dedicates 1/16th of the kernel memory for shadow memory).
+
+On each memory allocation tag-based KASAN generates a random tag, tags the
+allocated memory with this tag, and embeds this tag into the returned pointer.
+Software tag-based KASAN uses compile-time instrumentation to insert checks
+before each memory access. These checks make sure that tag of the memory that
+is being accessed is equal to tag of the pointer that is used to access this
+memory. In case of a tag mismatch tag-based KASAN prints a bug report.
+
+Software tag-based KASAN also has two instrumentation modes (outline, that
+emits callbacks to check memory accesses; and inline, that performs the shadow
+memory checks inline). With outline instrumentation mode, a bug report is
+simply printed from the function that performs the access check. With inline
+instrumentation a brk instruction is emitted by the compiler, and a dedicated
+brk handler is used to print bug reports.
+
+A potential expansion of this mode is a hardware tag-based mode, which would
+use hardware memory tagging support instead of compiler instrumentation and
+manual shadow memory manipulation.
diff --git a/Documentation/dev-tools/kcov.rst b/Documentation/dev-tools/kcov.rst
index c2f6452..f254173b 100644
--- a/Documentation/dev-tools/kcov.rst
+++ b/Documentation/dev-tools/kcov.rst
@@ -34,6 +34,7 @@
Coverage collection
-------------------
+
The following program demonstrates coverage collection from within a test
program using kcov:
@@ -128,6 +129,7 @@
Comparison operands collection
------------------------------
+
Comparison operands collection is similar to coverage collection:
.. code-block:: c
@@ -202,3 +204,130 @@
Note that the kcov modes (coverage collection or comparison operands) are
mutually exclusive.
+
+Remote coverage collection
+--------------------------
+
+With KCOV_ENABLE coverage is collected only for syscalls that are issued
+from the current process. With KCOV_REMOTE_ENABLE it's possible to collect
+coverage for arbitrary parts of the kernel code, provided that those parts
+are annotated with kcov_remote_start()/kcov_remote_stop().
+
+This allows to collect coverage from two types of kernel background
+threads: the global ones, that are spawned during kernel boot in a limited
+number of instances (e.g. one USB hub_event() worker thread is spawned per
+USB HCD); and the local ones, that are spawned when a user interacts with
+some kernel interface (e.g. vhost workers).
+
+To enable collecting coverage from a global background thread, a unique
+global handle must be assigned and passed to the corresponding
+kcov_remote_start() call. Then a userspace process can pass a list of such
+handles to the KCOV_REMOTE_ENABLE ioctl in the handles array field of the
+kcov_remote_arg struct. This will attach the used kcov device to the code
+sections, that are referenced by those handles.
+
+Since there might be many local background threads spawned from different
+userspace processes, we can't use a single global handle per annotation.
+Instead, the userspace process passes a non-zero handle through the
+common_handle field of the kcov_remote_arg struct. This common handle gets
+saved to the kcov_handle field in the current task_struct and needs to be
+passed to the newly spawned threads via custom annotations. Those threads
+should in turn be annotated with kcov_remote_start()/kcov_remote_stop().
+
+Internally kcov stores handles as u64 integers. The top byte of a handle
+is used to denote the id of a subsystem that this handle belongs to, and
+the lower 4 bytes are used to denote the id of a thread instance within
+that subsystem. A reserved value 0 is used as a subsystem id for common
+handles as they don't belong to a particular subsystem. The bytes 4-7 are
+currently reserved and must be zero. In the future the number of bytes
+used for the subsystem or handle ids might be increased.
+
+When a particular userspace proccess collects coverage by via a common
+handle, kcov will collect coverage for each code section that is annotated
+to use the common handle obtained as kcov_handle from the current
+task_struct. However non common handles allow to collect coverage
+selectively from different subsystems.
+
+.. code-block:: c
+
+ struct kcov_remote_arg {
+ __u32 trace_mode;
+ __u32 area_size;
+ __u32 num_handles;
+ __aligned_u64 common_handle;
+ __aligned_u64 handles[0];
+ };
+
+ #define KCOV_INIT_TRACE _IOR('c', 1, unsigned long)
+ #define KCOV_DISABLE _IO('c', 101)
+ #define KCOV_REMOTE_ENABLE _IOW('c', 102, struct kcov_remote_arg)
+
+ #define COVER_SIZE (64 << 10)
+
+ #define KCOV_TRACE_PC 0
+
+ #define KCOV_SUBSYSTEM_COMMON (0x00ull << 56)
+ #define KCOV_SUBSYSTEM_USB (0x01ull << 56)
+
+ #define KCOV_SUBSYSTEM_MASK (0xffull << 56)
+ #define KCOV_INSTANCE_MASK (0xffffffffull)
+
+ static inline __u64 kcov_remote_handle(__u64 subsys, __u64 inst)
+ {
+ if (subsys & ~KCOV_SUBSYSTEM_MASK || inst & ~KCOV_INSTANCE_MASK)
+ return 0;
+ return subsys | inst;
+ }
+
+ #define KCOV_COMMON_ID 0x42
+ #define KCOV_USB_BUS_NUM 1
+
+ int main(int argc, char **argv)
+ {
+ int fd;
+ unsigned long *cover, n, i;
+ struct kcov_remote_arg *arg;
+
+ fd = open("/sys/kernel/debug/kcov", O_RDWR);
+ if (fd == -1)
+ perror("open"), exit(1);
+ if (ioctl(fd, KCOV_INIT_TRACE, COVER_SIZE))
+ perror("ioctl"), exit(1);
+ cover = (unsigned long*)mmap(NULL, COVER_SIZE * sizeof(unsigned long),
+ PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+ if ((void*)cover == MAP_FAILED)
+ perror("mmap"), exit(1);
+
+ /* Enable coverage collection via common handle and from USB bus #1. */
+ arg = calloc(1, sizeof(*arg) + sizeof(uint64_t));
+ if (!arg)
+ perror("calloc"), exit(1);
+ arg->trace_mode = KCOV_TRACE_PC;
+ arg->area_size = COVER_SIZE;
+ arg->num_handles = 1;
+ arg->common_handle = kcov_remote_handle(KCOV_SUBSYSTEM_COMMON,
+ KCOV_COMMON_ID);
+ arg->handles[0] = kcov_remote_handle(KCOV_SUBSYSTEM_USB,
+ KCOV_USB_BUS_NUM);
+ if (ioctl(fd, KCOV_REMOTE_ENABLE, arg))
+ perror("ioctl"), free(arg), exit(1);
+ free(arg);
+
+ /*
+ * Here the user needs to trigger execution of a kernel code section
+ * that is either annotated with the common handle, or to trigger some
+ * activity on USB bus #1.
+ */
+ sleep(2);
+
+ n = __atomic_load_n(&cover[0], __ATOMIC_RELAXED);
+ for (i = 0; i < n; i++)
+ printf("0x%lx\n", cover[i + 1]);
+ if (ioctl(fd, KCOV_DISABLE, 0))
+ perror("ioctl"), exit(1);
+ if (munmap(cover, COVER_SIZE * sizeof(unsigned long)))
+ perror("munmap"), exit(1);
+ if (close(fd))
+ perror("close"), exit(1);
+ return 0;
+ }
diff --git a/Documentation/device-mapper/dm-bow.txt b/Documentation/device-mapper/dm-bow.txt
new file mode 100644
index 0000000..e3fc4d2
--- /dev/null
+++ b/Documentation/device-mapper/dm-bow.txt
@@ -0,0 +1,99 @@
+dm_bow (backup on write)
+========================
+
+dm_bow is a device mapper driver that uses the free space on a device to back up
+data that is overwritten. The changes can then be committed by a simple state
+change, or rolled back by removing the dm_bow device and running a command line
+utility over the underlying device.
+
+dm_bow has three states, set by writing ‘1’ or ‘2’ to /sys/block/dm-?/bow/state.
+It is only possible to go from state 0 (initial state) to state 1, and then from
+state 1 to state 2.
+
+State 0: dm_bow collects all trims to the device and assumes that these mark
+free space on the overlying file system that can be safely used. Typically the
+mount code would create the dm_bow device, mount the file system, call the
+FITRIM ioctl on the file system then switch to state 1. These trims are not
+propagated to the underlying device.
+
+State 1: All writes to the device cause the underlying data to be backed up to
+the free (trimmed) area as needed in such a way as they can be restored.
+However, the writes, with one exception, then happen exactly as they would
+without dm_bow, so the device is always in a good final state. The exception is
+that sector 0 is used to keep a log of the latest changes, both to indicate that
+we are in this state and to allow rollback. See below for all details. If there
+isn't enough free space, writes are failed with -ENOSPC.
+
+State 2: The transition to state 2 triggers replacing the special sector 0 with
+the normal sector 0, and the freeing of all state information. dm_bow then
+becomes a pass-through driver, allowing the device to continue to be used with
+minimal performance impact.
+
+Usage
+=====
+dm-bow takes one command line parameter, the name of the underlying device.
+
+dm-bow will typically be used in the following way. dm-bow will be loaded with a
+suitable underlying device and the resultant device will be mounted. A file
+system trim will be issued via the FITRIM ioctl, then the device will be
+switched to state 1. The file system will now be used as normal. At some point,
+the changes can either be committed by switching to state 2, or rolled back by
+unmounting the file system, removing the dm-bow device and running the command
+line utility. Note that rebooting the device will be equivalent to unmounting
+and removing, but the command line utility must still be run
+
+Details of operation in state 1
+===============================
+
+dm_bow maintains a type for all sectors. A sector can be any of:
+
+SECTOR0
+SECTOR0_CURRENT
+UNCHANGED
+FREE
+CHANGED
+BACKUP
+
+SECTOR0 is the first sector on the device, and is used to hold the log of
+changes. This is the one exception.
+
+SECTOR0_CURRENT is a sector picked from the FREE sectors, and is where reads and
+writes from the true sector zero are redirected to. Note that like any backup
+sector, if the sector is written to directly, it must be moved again.
+
+UNCHANGED means that the sector has not been changed since we entered state 1.
+Thus if it is written to or trimmed, the contents must first be backed up.
+
+FREE means that the sector was trimmed in state 0 and has not yet been written
+to or used for backup. On being written to, a FREE sector is changed to CHANGED.
+
+CHANGED means that the sector has been modified, and can be further modified
+without further backup.
+
+BACKUP means that this is a free sector being used as a backup. On being written
+to, the contents must first be backed up again.
+
+All backup operations are logged to the first sector. The log sector has the
+format:
+--------------------------------------------------------
+| Magic | Count | Sequence | Log entry | Log entry | …
+--------------------------------------------------------
+
+Magic is a magic number. Count is the number of log entries. Sequence is 0
+initially. A log entry is
+
+-----------------------------------
+| Source | Dest | Size | Checksum |
+-----------------------------------
+
+When SECTOR0 is full, the log sector is backed up and another empty log sector
+created with sequence number one higher. The first entry in any log entry with
+sequence > 0 therefore must be the log of the backing up of the previous log
+sector. Note that sequence is not strictly needed, but is a useful sanity check
+and potentially limits the time spent trying to restore a corrupted snapshot.
+
+On entering state 1, dm_bow has a list of free sectors. All other sectors are
+unchanged. Sector0_current is selected from the free sectors and the contents of
+sector 0 are copied there. The sector 0 is backed up, which triggers the first
+log entry to be written.
+
diff --git a/Documentation/devicetree/bindings/arm/coresight.txt b/Documentation/devicetree/bindings/arm/coresight.txt
index 5d1ad09b..410e09e 100644
--- a/Documentation/devicetree/bindings/arm/coresight.txt
+++ b/Documentation/devicetree/bindings/arm/coresight.txt
@@ -75,6 +75,15 @@
* port or ports: same as above.
+* Optional properties for all components:
+
+ * arm,coresight-loses-context-with-cpu : boolean. Indicates that the
+ hardware will lose register context on CPU power down (e.g. CPUIdle).
+ An example of where this may be needed are systems which contain a
+ coresight component and CPU in the same power domain. When the CPU
+ powers down the coresight component also powers down and loses its
+ context. This property is currently only used for the ETM 4.x driver.
+
* Optional properties for ETM/PTMs:
* arm,cp14: must be present if the system accesses ETM/PTM management
diff --git a/Documentation/devicetree/bindings/regulator/proxy-consumer.txt b/Documentation/devicetree/bindings/regulator/proxy-consumer.txt
new file mode 100644
index 0000000..c3fddd7
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/proxy-consumer.txt
@@ -0,0 +1,32 @@
+Regulator Proxy Consumer Bindings
+
+Regulator proxy consumers provide a means to use a default regulator state
+during bootup only which is removed at the end of boot. This feature can be
+used in situations where a shared regulator can be scaled between several
+possible voltages and hardware requires that it be at a high level at the
+beginning of boot before the consumer device responsible for requesting the
+high level has probed.
+
+Optional properties:
+proxy-supply: phandle of the regulator's own device node.
+ This property is required if any of the three
+ properties below are specified.
+qcom,proxy-consumer-enable: Boolean indicating that the regulator must be
+ kept enabled during boot.
+qcom,proxy-consumer-voltage: List of two integers corresponding the minimum
+ and maximum voltage allowed during boot in
+ microvolts.
+qcom,proxy-consumer-current: Minimum current in microamps required during
+ boot.
+
+Example:
+
+ foo_vreg: regulator@0 {
+ regulator-name = "foo";
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <2000000>;
+ proxy-supply = <&foo_vreg>;
+ qcom,proxy-consumer-voltage = <1500000 2000000>;
+ qcom,proxy-consumer-current = <25000>;
+ qcom,proxy-consumer-enable;
+ };
diff --git a/Documentation/devicetree/bindings/thermal/thermal.txt b/Documentation/devicetree/bindings/thermal/thermal.txt
index eb7ee91..a9284a6 100644
--- a/Documentation/devicetree/bindings/thermal/thermal.txt
+++ b/Documentation/devicetree/bindings/thermal/thermal.txt
@@ -165,6 +165,14 @@
2000mW, while on a 10'' tablet is around
4500mW.
+- tracks-low: Indicates that the temperature sensor tracks the low
+ Type: bool thresholds, so the governors may mitigate by ensuring
+ timing closures and other low temperature operating
+ issues.
+- wake-capable-sensor: Set to true if thermal zone sensor is wake up capable
+ Type: bool and cooling devices binded to this thermal zone are not
+ Size: none affected during suspend.
+
Note: The delay properties are bound to the maximum dT/dt (temperature
derivative over time) in two situations for a thermal zone:
(i) - when passive cooling is activated (polling-delay-passive); and
diff --git a/Documentation/devicetree/bindings/usb/mediatek,musb.txt b/Documentation/devicetree/bindings/usb/mediatek,musb.txt
new file mode 100644
index 0000000..2b8a87c
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/mediatek,musb.txt
@@ -0,0 +1,57 @@
+MediaTek musb DRD/OTG controller
+-------------------------------------------
+
+Required properties:
+ - compatible : should be one of:
+ "mediatek,mt2701-musb"
+ ...
+ followed by "mediatek,mtk-musb"
+ - reg : specifies physical base address and size of
+ the registers
+ - interrupts : interrupt used by musb controller
+ - interrupt-names : must be "mc"
+ - phys : PHY specifier for the OTG phy
+ - dr_mode : should be one of "host", "peripheral" or "otg",
+ refer to usb/generic.txt
+ - clocks : a list of phandle + clock-specifier pairs, one for
+ each entry in clock-names
+ - clock-names : must contain "main", "mcu", "univpll"
+ for clocks of controller
+
+Optional properties:
+ - power-domains : a phandle to USB power domain node to control USB's
+ MTCMOS
+
+Required child nodes:
+ usb connector node as defined in bindings/connector/usb-connector.txt
+Optional properties:
+ - id-gpios : input GPIO for USB ID pin.
+ - vbus-gpios : input GPIO for USB VBUS pin.
+ - vbus-supply : reference to the VBUS regulator, needed when supports
+ dual-role mode
+ - usb-role-switch : use USB Role Switch to support dual-role switch, see
+ usb/generic.txt.
+
+Example:
+
+usb2: usb@11200000 {
+ compatible = "mediatek,mt2701-musb",
+ "mediatek,mtk-musb";
+ reg = <0 0x11200000 0 0x1000>;
+ interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-names = "mc";
+ phys = <&u2port2 PHY_TYPE_USB2>;
+ dr_mode = "otg";
+ clocks = <&pericfg CLK_PERI_USB0>,
+ <&pericfg CLK_PERI_USB0_MCU>,
+ <&pericfg CLK_PERI_USB_SLV>;
+ clock-names = "main","mcu","univpll";
+ power-domains = <&scpsys MT2701_POWER_DOMAIN_IFR_MSC>;
+ usb-role-switch;
+ connector{
+ compatible = "gpio-usb-b-connector", "usb-b-connector";
+ type = "micro";
+ id-gpios = <&pio 44 GPIO_ACTIVE_HIGH>;
+ vbus-supply = <&usb_vbus>;
+ };
+};
diff --git a/Documentation/dontdiff b/Documentation/dontdiff
index 2228fcc..2e2e52c 100644
--- a/Documentation/dontdiff
+++ b/Documentation/dontdiff
@@ -177,6 +177,7 @@
mkregtable
mktables
mktree
+mkutf8data
modpost
modules.builtin
modules.order
@@ -255,6 +256,7 @@
wanxlfw.inc
uImage
unifdef
+utf8data.h
wakeup.bin
wakeup.elf
wakeup.lds
diff --git a/Documentation/driver-api/device_link.rst b/Documentation/driver-api/device_link.rst
index e8b0a8f..a3fe1ff 100644
--- a/Documentation/driver-api/device_link.rst
+++ b/Documentation/driver-api/device_link.rst
@@ -263,7 +263,8 @@
:c:func:`driver_bound()`.)
* Before a consumer device is probed, presence of supplier drivers is
- verified by checking that links to suppliers are in ``DL_STATE_AVAILABLE``
+ verified by checking the consumer device is not in the wait_for_suppliers
+ list and by checking that links to suppliers are in ``DL_STATE_AVAILABLE``
state. The state of the links is updated to ``DL_STATE_CONSUMER_PROBE``.
(Call to :c:func:`device_links_check_suppliers()` from
:c:func:`really_probe()`.)
diff --git a/Documentation/driver-model/driver.txt b/Documentation/driver-model/driver.txt
index d661e6f..43985502 100644
--- a/Documentation/driver-model/driver.txt
+++ b/Documentation/driver-model/driver.txt
@@ -164,6 +164,49 @@
the driver did not bind to this device, in which case it should have
released all resources it allocated.
+ void (*sync_state)(struct device *dev);
+
+sync_state is called only once for a device. It's called when all the consumer
+devices of the device have successfully probed. The list of consumers of the
+device is obtained by looking at the device links connecting that device to its
+consumer devices.
+
+The first attempt to call sync_state() is made during late_initcall_sync() to
+give firmware and drivers time to link devices to each other. During the first
+attempt at calling sync_state(), if all the consumers of the device at that
+point in time have already probed successfully, sync_state() is called right
+away. If there are no consumers of the device during the first attempt, that
+too is considered as "all consumers of the device have probed" and sync_state()
+is called right away.
+
+If during the first attempt at calling sync_state() for a device, there are
+still consumers that haven't probed successfully, the sync_state() call is
+postponed and reattempted in the future only when one or more consumers of the
+device probe successfully. If during the reattempt, the driver core finds that
+there are one or more consumers of the device that haven't probed yet, then
+sync_state() call is postponed again.
+
+A typical use case for sync_state() is to have the kernel cleanly take over
+management of devices from the bootloader. For example, if a device is left on
+and at a particular hardware configuration by the bootloader, the device's
+driver might need to keep the device in the boot configuration until all the
+consumers of the device have probed. Once all the consumers of the device have
+probed, the device's driver can synchronize the hardware state of the device to
+match the aggregated software state requested by all the consumers. Hence the
+name sync_state().
+
+While obvious examples of resources that can benefit from sync_state() include
+resources such as regulator, sync_state() can also be useful for complex
+resources like IOMMUs. For example, IOMMUs with multiple consumers (devices
+whose addresses are remapped by the IOMMU) might need to keep their mappings
+fixed at (or additive to) the boot configuration until all its consumers have
+probed.
+
+While the typical use case for sync_state() is to have the kernel cleanly take
+over management of devices from the bootloader, the usage of sync_state() is
+not restricted to that. Use it whenever it makes sense to take an action after
+all the consumers of a device have probed.
+
int (*remove) (struct device * dev);
remove is called to unbind a driver from a device. This may be
diff --git a/Documentation/filesystems/OWNERS b/Documentation/filesystems/OWNERS
new file mode 100644
index 0000000..5b6ec53
--- /dev/null
+++ b/Documentation/filesystems/OWNERS
@@ -0,0 +1,2 @@
+# include OWNERS from the authoritative android-mainline branch
+include kernel/common:android-mainline:/Documentation/filesystems/OWNERS
diff --git a/Documentation/filesystems/ext4/ondisk/overview.rst b/Documentation/filesystems/ext4/ondisk/overview.rst
index cbab18b..123ebfd 100644
--- a/Documentation/filesystems/ext4/ondisk/overview.rst
+++ b/Documentation/filesystems/ext4/ondisk/overview.rst
@@ -24,3 +24,4 @@
.. include:: bigalloc.rst
.. include:: inlinedata.rst
.. include:: eainode.rst
+.. include:: verity.rst
diff --git a/Documentation/filesystems/ext4/verity.rst b/Documentation/filesystems/ext4/verity.rst
new file mode 100644
index 0000000..3e4c0ee
--- /dev/null
+++ b/Documentation/filesystems/ext4/verity.rst
@@ -0,0 +1,41 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Verity files
+------------
+
+ext4 supports fs-verity, which is a filesystem feature that provides
+Merkle tree based hashing for individual readonly files. Most of
+fs-verity is common to all filesystems that support it; see
+:ref:`Documentation/filesystems/fsverity.rst <fsverity>` for the
+fs-verity documentation. However, the on-disk layout of the verity
+metadata is filesystem-specific. On ext4, the verity metadata is
+stored after the end of the file data itself, in the following format:
+
+- Zero-padding to the next 65536-byte boundary. This padding need not
+ actually be allocated on-disk, i.e. it may be a hole.
+
+- The Merkle tree, as documented in
+ :ref:`Documentation/filesystems/fsverity.rst
+ <fsverity_merkle_tree>`, with the tree levels stored in order from
+ root to leaf, and the tree blocks within each level stored in their
+ natural order.
+
+- Zero-padding to the next filesystem block boundary.
+
+- The verity descriptor, as documented in
+ :ref:`Documentation/filesystems/fsverity.rst <fsverity_descriptor>`,
+ with optionally appended signature blob.
+
+- Zero-padding to the next offset that is 4 bytes before a filesystem
+ block boundary.
+
+- The size of the verity descriptor in bytes, as a 4-byte little
+ endian integer.
+
+Verity inodes have EXT4_VERITY_FL set, and they must use extents, i.e.
+EXT4_EXTENTS_FL must be set and EXT4_INLINE_DATA_FL must be clear.
+They can have EXT4_ENCRYPT_FL set, in which case the verity metadata
+is encrypted as well as the data itself.
+
+Verity files cannot have blocks allocated past the end of the verity
+metadata.
diff --git a/Documentation/filesystems/f2fs.txt b/Documentation/filesystems/f2fs.txt
index e5edd29..bc17e01 100644
--- a/Documentation/filesystems/f2fs.txt
+++ b/Documentation/filesystems/f2fs.txt
@@ -126,6 +126,8 @@
does not aware of cold files such as media files.
inline_xattr Enable the inline xattrs feature.
noinline_xattr Disable the inline xattrs feature.
+inline_xattr_size=%u Support configuring inline xattr size, it depends on
+ flexible inline xattr feature.
inline_data Enable the inline data feature: New created small(<~3.4k)
files can be written into inode block.
inline_dentry Enable the inline dir feature: data in new created
@@ -155,6 +157,11 @@
enabled by default.
data_flush Enable data flushing before checkpoint in order to
persist data of regular and symlink.
+reserve_root=%d Support configuring reserved space which is used for
+ allocation from a privileged user with specified uid or
+ gid, unit: 4KB, the default limit is 0.2% of user blocks.
+resuid=%d The user ID which may use the reserved blocks.
+resgid=%d The group ID which may use the reserved blocks.
fault_injection=%d Enable fault injection in all supported types with
specified injection rate.
fault_type=%d Support configuring fault injection type, should be
@@ -172,9 +179,10 @@
FAULT_DIR_DEPTH 0x000000100
FAULT_EVICT_INODE 0x000000200
FAULT_TRUNCATE 0x000000400
- FAULT_IO 0x000000800
+ FAULT_READ_IO 0x000000800
FAULT_CHECKPOINT 0x000001000
FAULT_DISCARD 0x000002000
+ FAULT_WRITE_IO 0x000004000
mode=%s Control block allocation mode which supports "adaptive"
and "lfs". In "lfs" mode, there should be no random
writes towards main area.
@@ -209,8 +217,39 @@
pass, but the performance will regress. "nobarrier" is
based on "posix", but doesn't issue flush command for
non-atomic files likewise "nobarrier" mount option.
-test_dummy_encryption Enable dummy encryption, which provides a fake fscrypt
+test_dummy_encryption
+test_dummy_encryption=%s
+ Enable dummy encryption, which provides a fake fscrypt
context. The fake fscrypt context is used by xfstests.
+ The argument may be either "v1" or "v2", in order to
+ select the corresponding fscrypt policy version.
+checkpoint=%s[:%u[%]] Set to "disable" to turn off checkpointing. Set to "enable"
+ to reenable checkpointing. Is enabled by default. While
+ disabled, any unmounting or unexpected shutdowns will cause
+ the filesystem contents to appear as they did when the
+ filesystem was mounted with that option.
+ While mounting with checkpoint=disabled, the filesystem must
+ run garbage collection to ensure that all available space can
+ be used. If this takes too much time, the mount may return
+ EAGAIN. You may optionally add a value to indicate how much
+ of the disk you would be willing to temporarily give up to
+ avoid additional garbage collection. This can be given as a
+ number of blocks, or as a percent. For instance, mounting
+ with checkpoint=disable:100% would always succeed, but it may
+ hide up to all remaining free space. The actual space that
+ would be unusable can be viewed at /sys/fs/f2fs/<disk>/unusable
+ This space is reclaimed once checkpoint=enable.
+compress_algorithm=%s Control compress algorithm, currently f2fs supports "lzo",
+ "lz4" and "zstd" algorithm.
+compress_log_size=%u Support configuring compress cluster size, the size will
+ be 4KB * (1 << %u), 16KB is minimum size, also it's
+ default size.
+compress_extension=%s Support adding specified extension, so that f2fs can enable
+ compression on those corresponding files, e.g. if all files
+ with '.ext' has high compression rate, we can set the '.ext'
+ on compression extension list and enable compression on
+ these file by default rather than to enable it via ioctl.
+ For other files, we can still enable compression via ioctl.
================================================================================
DEBUGFS ENTRIES
@@ -235,87 +274,6 @@
Files in /sys/fs/f2fs/<devname>
(see also Documentation/ABI/testing/sysfs-fs-f2fs)
-..............................................................................
- File Content
-
- gc_max_sleep_time This tuning parameter controls the maximum sleep
- time for the garbage collection thread. Time is
- in milliseconds.
-
- gc_min_sleep_time This tuning parameter controls the minimum sleep
- time for the garbage collection thread. Time is
- in milliseconds.
-
- gc_no_gc_sleep_time This tuning parameter controls the default sleep
- time for the garbage collection thread. Time is
- in milliseconds.
-
- gc_idle This parameter controls the selection of victim
- policy for garbage collection. Setting gc_idle = 0
- (default) will disable this option. Setting
- gc_idle = 1 will select the Cost Benefit approach
- & setting gc_idle = 2 will select the greedy approach.
-
- gc_urgent This parameter controls triggering background GCs
- urgently or not. Setting gc_urgent = 0 [default]
- makes back to default behavior, while if it is set
- to 1, background thread starts to do GC by given
- gc_urgent_sleep_time interval.
-
- gc_urgent_sleep_time This parameter controls sleep time for gc_urgent.
- 500 ms is set by default. See above gc_urgent.
-
- reclaim_segments This parameter controls the number of prefree
- segments to be reclaimed. If the number of prefree
- segments is larger than the number of segments
- in the proportion to the percentage over total
- volume size, f2fs tries to conduct checkpoint to
- reclaim the prefree segments to free segments.
- By default, 5% over total # of segments.
-
- max_small_discards This parameter controls the number of discard
- commands that consist small blocks less than 2MB.
- The candidates to be discarded are cached until
- checkpoint is triggered, and issued during the
- checkpoint. By default, it is disabled with 0.
-
- trim_sections This parameter controls the number of sections
- to be trimmed out in batch mode when FITRIM
- conducts. 32 sections is set by default.
-
- ipu_policy This parameter controls the policy of in-place
- updates in f2fs. There are five policies:
- 0x01: F2FS_IPU_FORCE, 0x02: F2FS_IPU_SSR,
- 0x04: F2FS_IPU_UTIL, 0x08: F2FS_IPU_SSR_UTIL,
- 0x10: F2FS_IPU_FSYNC.
-
- min_ipu_util This parameter controls the threshold to trigger
- in-place-updates. The number indicates percentage
- of the filesystem utilization, and used by
- F2FS_IPU_UTIL and F2FS_IPU_SSR_UTIL policies.
-
- min_fsync_blocks This parameter controls the threshold to trigger
- in-place-updates when F2FS_IPU_FSYNC mode is set.
- The number indicates the number of dirty pages
- when fsync needs to flush on its call path. If
- the number is less than this value, it triggers
- in-place-updates.
-
- max_victim_search This parameter controls the number of trials to
- find a victim segment when conducting SSR and
- cleaning operations. The default value is 4096
- which covers 8GB block address range.
-
- dir_level This parameter controls the directory level to
- support large directory. If a directory has a
- number of files, it can reduce the file lookup
- latency by increasing this dir_level value.
- Otherwise, it needs to decrease this value to
- reduce the space overhead. The default value is 0.
-
- ram_thresh This parameter controls the memory footprint used
- by free nids and cached nat entries. By default,
- 10 is set, which indicates 10 MB / 1 GB RAM.
================================================================================
USAGE
@@ -708,3 +666,69 @@
WRITE_LIFE_NONE " WRITE_LIFE_NONE
WRITE_LIFE_MEDIUM " WRITE_LIFE_MEDIUM
WRITE_LIFE_LONG " WRITE_LIFE_LONG
+
+Fallocate(2) Policy
+-------------------
+
+The default policy follows the below posix rule.
+
+Allocating disk space
+ The default operation (i.e., mode is zero) of fallocate() allocates
+ the disk space within the range specified by offset and len. The
+ file size (as reported by stat(2)) will be changed if offset+len is
+ greater than the file size. Any subregion within the range specified
+ by offset and len that did not contain data before the call will be
+ initialized to zero. This default behavior closely resembles the
+ behavior of the posix_fallocate(3) library function, and is intended
+ as a method of optimally implementing that function.
+
+However, once F2FS receives ioctl(fd, F2FS_IOC_SET_PIN_FILE) in prior to
+fallocate(fd, DEFAULT_MODE), it allocates on-disk blocks addressess having
+zero or random data, which is useful to the below scenario where:
+ 1. create(fd)
+ 2. ioctl(fd, F2FS_IOC_SET_PIN_FILE)
+ 3. fallocate(fd, 0, 0, size)
+ 4. address = fibmap(fd, offset)
+ 5. open(blkdev)
+ 6. write(blkdev, address)
+
+Compression implementation
+--------------------------
+
+- New term named cluster is defined as basic unit of compression, file can
+be divided into multiple clusters logically. One cluster includes 4 << n
+(n >= 0) logical pages, compression size is also cluster size, each of
+cluster can be compressed or not.
+
+- In cluster metadata layout, one special block address is used to indicate
+cluster is compressed one or normal one, for compressed cluster, following
+metadata maps cluster to [1, 4 << n - 1] physical blocks, in where f2fs
+stores data including compress header and compressed data.
+
+- In order to eliminate write amplification during overwrite, F2FS only
+support compression on write-once file, data can be compressed only when
+all logical blocks in file are valid and cluster compress ratio is lower
+than specified threshold.
+
+- To enable compression on regular inode, there are three ways:
+* chattr +c file
+* chattr +c dir; touch dir/file
+* mount w/ -o compress_extension=ext; touch file.ext
+
+Compress metadata layout:
+ [Dnode Structure]
+ +-----------------------------------------------+
+ | cluster 1 | cluster 2 | ......... | cluster N |
+ +-----------------------------------------------+
+ . . . .
+ . . . .
+ . Compressed Cluster . . Normal Cluster .
++----------+---------+---------+---------+ +---------+---------+---------+---------+
+|compr flag| block 1 | block 2 | block 3 | | block 1 | block 2 | block 3 | block 4 |
++----------+---------+---------+---------+ +---------+---------+---------+---------+
+ . .
+ . .
+ . .
+ +-------------+-------------+----------+----------------------------+
+ | data length | data chksum | reserved | compressed data |
+ +-------------+-------------+----------+----------------------------+
diff --git a/Documentation/filesystems/fscrypt.rst b/Documentation/filesystems/fscrypt.rst
index 5b667ee..7f9a372 100644
--- a/Documentation/filesystems/fscrypt.rst
+++ b/Documentation/filesystems/fscrypt.rst
@@ -72,6 +72,9 @@
fscrypt (and storage encryption in general) can only provide limited
protection, if any at all, against online attacks. In detail:
+Side-channel attacks
+~~~~~~~~~~~~~~~~~~~~
+
fscrypt is only resistant to side-channel attacks, such as timing or
electromagnetic attacks, to the extent that the underlying Linux
Cryptographic API algorithms are. If a vulnerable algorithm is used,
@@ -80,29 +83,90 @@
Side channel attacks may also be mounted against applications
consuming decrypted data.
-After an encryption key has been provided, fscrypt is not designed to
-hide the plaintext file contents or filenames from other users on the
-same system, regardless of the visibility of the keyring key.
-Instead, existing access control mechanisms such as file mode bits,
-POSIX ACLs, LSMs, or mount namespaces should be used for this purpose.
-Also note that as long as the encryption keys are *anywhere* in
-memory, an online attacker can necessarily compromise them by mounting
-a physical attack or by exploiting any kernel security vulnerability
-which provides an arbitrary memory read primitive.
+Unauthorized file access
+~~~~~~~~~~~~~~~~~~~~~~~~
-While it is ostensibly possible to "evict" keys from the system,
-recently accessed encrypted files will remain accessible at least
-until the filesystem is unmounted or the VFS caches are dropped, e.g.
-using ``echo 2 > /proc/sys/vm/drop_caches``. Even after that, if the
-RAM is compromised before being powered off, it will likely still be
-possible to recover portions of the plaintext file contents, if not
-some of the encryption keys as well. (Since Linux v4.12, all
-in-kernel keys related to fscrypt are sanitized before being freed.
-However, userspace would need to do its part as well.)
+After an encryption key has been added, fscrypt does not hide the
+plaintext file contents or filenames from other users on the same
+system. Instead, existing access control mechanisms such as file mode
+bits, POSIX ACLs, LSMs, or namespaces should be used for this purpose.
-Currently, fscrypt does not prevent a user from maliciously providing
-an incorrect key for another user's existing encrypted files. A
-protection against this is planned.
+(For the reasoning behind this, understand that while the key is
+added, the confidentiality of the data, from the perspective of the
+system itself, is *not* protected by the mathematical properties of
+encryption but rather only by the correctness of the kernel.
+Therefore, any encryption-specific access control checks would merely
+be enforced by kernel *code* and therefore would be largely redundant
+with the wide variety of access control mechanisms already available.)
+
+Kernel memory compromise
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+An attacker who compromises the system enough to read from arbitrary
+memory, e.g. by mounting a physical attack or by exploiting a kernel
+security vulnerability, can compromise all encryption keys that are
+currently in use.
+
+However, fscrypt allows encryption keys to be removed from the kernel,
+which may protect them from later compromise.
+
+In more detail, the FS_IOC_REMOVE_ENCRYPTION_KEY ioctl (or the
+FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS ioctl) can wipe a master
+encryption key from kernel memory. If it does so, it will also try to
+evict all cached inodes which had been "unlocked" using the key,
+thereby wiping their per-file keys and making them once again appear
+"locked", i.e. in ciphertext or encrypted form.
+
+However, these ioctls have some limitations:
+
+- Per-file keys for in-use files will *not* be removed or wiped.
+ Therefore, for maximum effect, userspace should close the relevant
+ encrypted files and directories before removing a master key, as
+ well as kill any processes whose working directory is in an affected
+ encrypted directory.
+
+- The kernel cannot magically wipe copies of the master key(s) that
+ userspace might have as well. Therefore, userspace must wipe all
+ copies of the master key(s) it makes as well; normally this should
+ be done immediately after FS_IOC_ADD_ENCRYPTION_KEY, without waiting
+ for FS_IOC_REMOVE_ENCRYPTION_KEY. Naturally, the same also applies
+ to all higher levels in the key hierarchy. Userspace should also
+ follow other security precautions such as mlock()ing memory
+ containing keys to prevent it from being swapped out.
+
+- In general, decrypted contents and filenames in the kernel VFS
+ caches are freed but not wiped. Therefore, portions thereof may be
+ recoverable from freed memory, even after the corresponding key(s)
+ were wiped. To partially solve this, you can set
+ CONFIG_PAGE_POISONING=y in your kernel config and add page_poison=1
+ to your kernel command line. However, this has a performance cost.
+
+- Secret keys might still exist in CPU registers, in crypto
+ accelerator hardware (if used by the crypto API to implement any of
+ the algorithms), or in other places not explicitly considered here.
+
+Limitations of v1 policies
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+v1 encryption policies have some weaknesses with respect to online
+attacks:
+
+- There is no verification that the provided master key is correct.
+ Therefore, a malicious user can temporarily associate the wrong key
+ with another user's encrypted files to which they have read-only
+ access. Because of filesystem caching, the wrong key will then be
+ used by the other user's accesses to those files, even if the other
+ user has the correct key in their own keyring. This violates the
+ meaning of "read-only access".
+
+- A compromise of a per-file key also compromises the master key from
+ which it was derived.
+
+- Non-root users cannot securely remove encryption keys.
+
+All the above problems are fixed with v2 encryption policies. For
+this reason among others, it is recommended to use v2 encryption
+policies on all new encrypted directories.
Key hierarchy
=============
@@ -123,63 +187,144 @@
of which protects any number of directory trees on any number of
filesystems.
-Userspace should generate master keys either using a cryptographically
-secure random number generator, or by using a KDF (Key Derivation
-Function). Note that whenever a KDF is used to "stretch" a
-lower-entropy secret such as a passphrase, it is critical that a KDF
-designed for this purpose be used, such as scrypt, PBKDF2, or Argon2.
+Master keys must be real cryptographic keys, i.e. indistinguishable
+from random bytestrings of the same length. This implies that users
+**must not** directly use a password as a master key, zero-pad a
+shorter key, or repeat a shorter key. Security cannot be guaranteed
+if userspace makes any such error, as the cryptographic proofs and
+analysis would no longer apply.
-Per-file keys
--------------
+Instead, users should generate master keys either using a
+cryptographically secure random number generator, or by using a KDF
+(Key Derivation Function). The kernel does not do any key stretching;
+therefore, if userspace derives the key from a low-entropy secret such
+as a passphrase, it is critical that a KDF designed for this purpose
+be used, such as scrypt, PBKDF2, or Argon2.
-Master keys are not used to encrypt file contents or names directly.
-Instead, a unique key is derived for each encrypted file, including
-each regular file, directory, and symbolic link. This has several
-advantages:
+Key derivation function
+-----------------------
-- In cryptosystems, the same key material should never be used for
- different purposes. Using the master key as both an XTS key for
- contents encryption and as a CTS-CBC key for filenames encryption
- would violate this rule.
-- Per-file keys simplify the choice of IVs (Initialization Vectors)
- for contents encryption. Without per-file keys, to ensure IV
- uniqueness both the inode and logical block number would need to be
- encoded in the IVs. This would make it impossible to renumber
- inodes, which e.g. ``resize2fs`` can do when resizing an ext4
- filesystem. With per-file keys, it is sufficient to encode just the
- logical block number in the IVs.
-- Per-file keys strengthen the encryption of filenames, where IVs are
- reused out of necessity. With a unique key per directory, IV reuse
- is limited to within a single directory.
-- Per-file keys allow individual files to be securely erased simply by
- securely erasing their keys. (Not yet implemented.)
+With one exception, fscrypt never uses the master key(s) for
+encryption directly. Instead, they are only used as input to a KDF
+(Key Derivation Function) to derive the actual keys.
-A KDF (Key Derivation Function) is used to derive per-file keys from
-the master key. This is done instead of wrapping a randomly-generated
-key for each file because it reduces the size of the encryption xattr,
-which for some filesystems makes the xattr more likely to fit in-line
-in the filesystem's inode table. With a KDF, only a 16-byte nonce is
-required --- long enough to make key reuse extremely unlikely. A
-wrapped key, on the other hand, would need to be up to 64 bytes ---
-the length of an AES-256-XTS key. Furthermore, currently there is no
-requirement to support unlocking a file with multiple alternative
-master keys or to support rotating master keys. Instead, the master
-keys may be wrapped in userspace, e.g. as done by the `fscrypt
-<https://github.com/google/fscrypt>`_ tool.
+The KDF used for a particular master key differs depending on whether
+the key is used for v1 encryption policies or for v2 encryption
+policies. Users **must not** use the same key for both v1 and v2
+encryption policies. (No real-world attack is currently known on this
+specific case of key reuse, but its security cannot be guaranteed
+since the cryptographic proofs and analysis would no longer apply.)
-The current KDF encrypts the master key using the 16-byte nonce as an
-AES-128-ECB key. The output is used as the derived key. If the
-output is longer than needed, then it is truncated to the needed
-length. Truncation is the norm for directories and symlinks, since
-those use the CTS-CBC encryption mode which requires a key half as
-long as that required by the XTS encryption mode.
+For v1 encryption policies, the KDF only supports deriving per-file
+encryption keys. It works by encrypting the master key with
+AES-128-ECB, using the file's 16-byte nonce as the AES key. The
+resulting ciphertext is used as the derived key. If the ciphertext is
+longer than needed, then it is truncated to the needed length.
-Note: this KDF meets the primary security requirement, which is to
-produce unique derived keys that preserve the entropy of the master
-key, assuming that the master key is already a good pseudorandom key.
-However, it is nonstandard and has some problems such as being
-reversible, so it is generally considered to be a mistake! It may be
-replaced with HKDF or another more standard KDF in the future.
+For v2 encryption policies, the KDF is HKDF-SHA512. The master key is
+passed as the "input keying material", no salt is used, and a distinct
+"application-specific information string" is used for each distinct
+key to be derived. For example, when a per-file encryption key is
+derived, the application-specific information string is the file's
+nonce prefixed with "fscrypt\\0" and a context byte. Different
+context bytes are used for other types of derived keys.
+
+HKDF-SHA512 is preferred to the original AES-128-ECB based KDF because
+HKDF is more flexible, is nonreversible, and evenly distributes
+entropy from the master key. HKDF is also standardized and widely
+used by other software, whereas the AES-128-ECB based KDF is ad-hoc.
+
+Per-file encryption keys
+------------------------
+
+Since each master key can protect many files, it is necessary to
+"tweak" the encryption of each file so that the same plaintext in two
+files doesn't map to the same ciphertext, or vice versa. In most
+cases, fscrypt does this by deriving per-file keys. When a new
+encrypted inode (regular file, directory, or symlink) is created,
+fscrypt randomly generates a 16-byte nonce and stores it in the
+inode's encryption xattr. Then, it uses a KDF (as described in `Key
+derivation function`_) to derive the file's key from the master key
+and nonce.
+
+Key derivation was chosen over key wrapping because wrapped keys would
+require larger xattrs which would be less likely to fit in-line in the
+filesystem's inode table, and there didn't appear to be any
+significant advantages to key wrapping. In particular, currently
+there is no requirement to support unlocking a file with multiple
+alternative master keys or to support rotating master keys. Instead,
+the master keys may be wrapped in userspace, e.g. as is done by the
+`fscrypt <https://github.com/google/fscrypt>`_ tool.
+
+DIRECT_KEY policies
+-------------------
+
+The Adiantum encryption mode (see `Encryption modes and usage`_) is
+suitable for both contents and filenames encryption, and it accepts
+long IVs --- long enough to hold both an 8-byte logical block number
+and a 16-byte per-file nonce. Also, the overhead of each Adiantum key
+is greater than that of an AES-256-XTS key.
+
+Therefore, to improve performance and save memory, for Adiantum a
+"direct key" configuration is supported. When the user has enabled
+this by setting FSCRYPT_POLICY_FLAG_DIRECT_KEY in the fscrypt policy,
+per-file encryption keys are not used. Instead, whenever any data
+(contents or filenames) is encrypted, the file's 16-byte nonce is
+included in the IV. Moreover:
+
+- For v1 encryption policies, the encryption is done directly with the
+ master key. Because of this, users **must not** use the same master
+ key for any other purpose, even for other v1 policies.
+
+- For v2 encryption policies, the encryption is done with a per-mode
+ key derived using the KDF. Users may use the same master key for
+ other v2 encryption policies.
+
+IV_INO_LBLK_64 policies
+-----------------------
+
+When FSCRYPT_POLICY_FLAG_IV_INO_LBLK_64 is set in the fscrypt policy,
+the encryption keys are derived from the master key, encryption mode
+number, and filesystem UUID. This normally results in all files
+protected by the same master key sharing a single contents encryption
+key and a single filenames encryption key. To still encrypt different
+files' data differently, inode numbers are included in the IVs.
+Consequently, shrinking the filesystem may not be allowed.
+
+This format is optimized for use with inline encryption hardware
+compliant with the UFS standard, which supports only 64 IV bits per
+I/O request and may have only a small number of keyslots.
+
+IV_INO_LBLK_32 policies
+-----------------------
+
+IV_INO_LBLK_32 policies work like IV_INO_LBLK_64, except that for
+IV_INO_LBLK_32, the inode number is hashed with SipHash-2-4 (where the
+SipHash key is derived from the master key) and added to the file
+logical block number mod 2^32 to produce a 32-bit IV.
+
+This format is optimized for use with inline encryption hardware
+compliant with the eMMC v5.2 standard, which supports only 32 IV bits
+per I/O request and may have only a small number of keyslots. This
+format results in some level of IV reuse, so it should only be used
+when necessary due to hardware limitations.
+
+Key identifiers
+---------------
+
+For master keys used for v2 encryption policies, a unique 16-byte "key
+identifier" is also derived using the KDF. This value is stored in
+the clear, since it is needed to reliably identify the key itself.
+
+Dirhash keys
+------------
+
+For directories that are indexed using a secret-keyed dirhash over the
+plaintext filenames, the KDF is also used to derive a 128-bit
+SipHash-2-4 key per directory in order to hash filenames. This works
+just like deriving a per-file encryption key, except that a different
+KDF context is used. Currently, only casefolded ("case-insensitive")
+encrypted directories use this style of hashing.
Encryption modes and usage
==========================
@@ -191,54 +336,94 @@
- AES-256-XTS for contents and AES-256-CTS-CBC for filenames
- AES-128-CBC for contents and AES-128-CTS-CBC for filenames
+- Adiantum for both contents and filenames
-It is strongly recommended to use AES-256-XTS for contents encryption.
+If unsure, you should use the (AES-256-XTS, AES-256-CTS-CBC) pair.
+
AES-128-CBC was added only for low-powered embedded devices with
-crypto accelerators such as CAAM or CESA that do not support XTS.
+crypto accelerators such as CAAM or CESA that do not support XTS. To
+use AES-128-CBC, CONFIG_CRYPTO_ESSIV and CONFIG_CRYPTO_SHA256 (or
+another SHA-256 implementation) must be enabled so that ESSIV can be
+used.
+
+Adiantum is a (primarily) stream cipher-based mode that is fast even
+on CPUs without dedicated crypto instructions. It's also a true
+wide-block mode, unlike XTS. It can also eliminate the need to derive
+per-file encryption keys. However, it depends on the security of two
+primitives, XChaCha12 and AES-256, rather than just one. See the
+paper "Adiantum: length-preserving encryption for entry-level
+processors" (https://eprint.iacr.org/2018/720.pdf) for more details.
+To use Adiantum, CONFIG_CRYPTO_ADIANTUM must be enabled. Also, fast
+implementations of ChaCha and NHPoly1305 should be enabled, e.g.
+CONFIG_CRYPTO_CHACHA20_NEON and CONFIG_CRYPTO_NHPOLY1305_NEON for ARM.
New encryption modes can be added relatively easily, without changes
to individual filesystems. However, authenticated encryption (AE)
modes are not currently supported because of the difficulty of dealing
with ciphertext expansion.
+Contents encryption
+-------------------
+
For file contents, each filesystem block is encrypted independently.
Currently, only the case where the filesystem block size is equal to
-the system's page size (usually 4096 bytes) is supported. With the
-XTS mode of operation (recommended), the logical block number within
-the file is used as the IV. With the CBC mode of operation (not
-recommended), ESSIV is used; specifically, the IV for CBC is the
-logical block number encrypted with AES-256, where the AES-256 key is
-the SHA-256 hash of the inode's data encryption key.
+the system's page size (usually 4096 bytes) is supported.
-For filenames, the full filename is encrypted at once. Because of the
-requirements to retain support for efficient directory lookups and
-filenames of up to 255 bytes, a constant initialization vector (IV) is
-used. However, each encrypted directory uses a unique key, which
-limits IV reuse to within a single directory. Note that IV reuse in
-the context of CTS-CBC encryption means that when the original
-filenames share a common prefix at least as long as the cipher block
-size (16 bytes for AES), the corresponding encrypted filenames will
-also share a common prefix. This is undesirable; it may be fixed in
-the future by switching to an encryption mode that is a strong
-pseudorandom permutation on arbitrary-length messages, e.g. the HEH
-(Hash-Encrypt-Hash) mode.
+Each block's IV is set to the logical block number within the file as
+a little endian number, except that:
-Since filenames are encrypted with the CTS-CBC mode of operation, the
-plaintext and ciphertext filenames need not be multiples of the AES
-block size, i.e. 16 bytes. However, the minimum size that can be
-encrypted is 16 bytes, so shorter filenames are NUL-padded to 16 bytes
-before being encrypted. In addition, to reduce leakage of filename
-lengths via their ciphertexts, all filenames are NUL-padded to the
-next 4, 8, 16, or 32-byte boundary (configurable). 32 is recommended
-since this provides the best confidentiality, at the cost of making
-directory entries consume slightly more space. Note that since NUL
-(``\0``) is not otherwise a valid character in filenames, the padding
-will never produce duplicate plaintexts.
+- With CBC mode encryption, ESSIV is also used. Specifically, each IV
+ is encrypted with AES-256 where the AES-256 key is the SHA-256 hash
+ of the file's data encryption key.
+
+- With `DIRECT_KEY policies`_, the file's nonce is appended to the IV.
+ Currently this is only allowed with the Adiantum encryption mode.
+
+- With `IV_INO_LBLK_64 policies`_, the logical block number is limited
+ to 32 bits and is placed in bits 0-31 of the IV. The inode number
+ (which is also limited to 32 bits) is placed in bits 32-63.
+
+- With `IV_INO_LBLK_32 policies`_, the logical block number is limited
+ to 32 bits and is placed in bits 0-31 of the IV. The inode number
+ is then hashed and added mod 2^32.
+
+Note that because file logical block numbers are included in the IVs,
+filesystems must enforce that blocks are never shifted around within
+encrypted files, e.g. via "collapse range" or "insert range".
+
+Filenames encryption
+--------------------
+
+For filenames, each full filename is encrypted at once. Because of
+the requirements to retain support for efficient directory lookups and
+filenames of up to 255 bytes, the same IV is used for every filename
+in a directory.
+
+However, each encrypted directory still uses a unique key, or
+alternatively has the file's nonce (for `DIRECT_KEY policies`_) or
+inode number (for `IV_INO_LBLK_64 policies`_) included in the IVs.
+Thus, IV reuse is limited to within a single directory.
+
+With CTS-CBC, the IV reuse means that when the plaintext filenames
+share a common prefix at least as long as the cipher block size (16
+bytes for AES), the corresponding encrypted filenames will also share
+a common prefix. This is undesirable. Adiantum does not have this
+weakness, as it is a wide-block encryption mode.
+
+All supported filenames encryption modes accept any plaintext length
+>= 16 bytes; cipher block alignment is not required. However,
+filenames shorter than 16 bytes are NUL-padded to 16 bytes before
+being encrypted. In addition, to reduce leakage of filename lengths
+via their ciphertexts, all filenames are NUL-padded to the next 4, 8,
+16, or 32-byte boundary (configurable). 32 is recommended since this
+provides the best confidentiality, at the cost of making directory
+entries consume slightly more space. Note that since NUL (``\0``) is
+not otherwise a valid character in filenames, the padding will never
+produce duplicate plaintexts.
Symbolic link targets are considered a type of filename and are
-encrypted in the same way as filenames in directory entries. Each
-symlink also uses a unique key; hence, the hardcoded IV is not a
-problem for symlinks.
+encrypted in the same way as filenames in directory entries, except
+that IV reuse is not a problem as each symlink has its own inode.
User API
========
@@ -246,45 +431,87 @@
Setting an encryption policy
----------------------------
+FS_IOC_SET_ENCRYPTION_POLICY
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
The FS_IOC_SET_ENCRYPTION_POLICY ioctl sets an encryption policy on an
empty directory or verifies that a directory or regular file already
has the specified encryption policy. It takes in a pointer to a
-:c:type:`struct fscrypt_policy`, defined as follows::
+:c:type:`struct fscrypt_policy_v1` or a :c:type:`struct
+fscrypt_policy_v2`, defined as follows::
- #define FS_KEY_DESCRIPTOR_SIZE 8
-
- struct fscrypt_policy {
+ #define FSCRYPT_POLICY_V1 0
+ #define FSCRYPT_KEY_DESCRIPTOR_SIZE 8
+ struct fscrypt_policy_v1 {
__u8 version;
__u8 contents_encryption_mode;
__u8 filenames_encryption_mode;
__u8 flags;
- __u8 master_key_descriptor[FS_KEY_DESCRIPTOR_SIZE];
+ __u8 master_key_descriptor[FSCRYPT_KEY_DESCRIPTOR_SIZE];
+ };
+ #define fscrypt_policy fscrypt_policy_v1
+
+ #define FSCRYPT_POLICY_V2 2
+ #define FSCRYPT_KEY_IDENTIFIER_SIZE 16
+ struct fscrypt_policy_v2 {
+ __u8 version;
+ __u8 contents_encryption_mode;
+ __u8 filenames_encryption_mode;
+ __u8 flags;
+ __u8 __reserved[4];
+ __u8 master_key_identifier[FSCRYPT_KEY_IDENTIFIER_SIZE];
};
This structure must be initialized as follows:
-- ``version`` must be 0.
+- ``version`` must be FSCRYPT_POLICY_V1 (0) if the struct is
+ :c:type:`fscrypt_policy_v1` or FSCRYPT_POLICY_V2 (2) if the struct
+ is :c:type:`fscrypt_policy_v2`. (Note: we refer to the original
+ policy version as "v1", though its version code is really 0.) For
+ new encrypted directories, use v2 policies.
- ``contents_encryption_mode`` and ``filenames_encryption_mode`` must
- be set to constants from ``<linux/fs.h>`` which identify the
- encryption modes to use. If unsure, use
- FS_ENCRYPTION_MODE_AES_256_XTS (1) for ``contents_encryption_mode``
- and FS_ENCRYPTION_MODE_AES_256_CTS (4) for
- ``filenames_encryption_mode``.
+ be set to constants from ``<linux/fscrypt.h>`` which identify the
+ encryption modes to use. If unsure, use FSCRYPT_MODE_AES_256_XTS
+ (1) for ``contents_encryption_mode`` and FSCRYPT_MODE_AES_256_CTS
+ (4) for ``filenames_encryption_mode``.
-- ``flags`` must be set to a value from ``<linux/fs.h>`` which
- identifies the amount of NUL-padding to use when encrypting
- filenames. If unsure, use FS_POLICY_FLAGS_PAD_32 (0x3).
+- ``flags`` contains optional flags from ``<linux/fscrypt.h>``:
-- ``master_key_descriptor`` specifies how to find the master key in
- the keyring; see `Adding keys`_. It is up to userspace to choose a
- unique ``master_key_descriptor`` for each master key. The e4crypt
- and fscrypt tools use the first 8 bytes of
+ - FSCRYPT_POLICY_FLAGS_PAD_*: The amount of NUL padding to use when
+ encrypting filenames. If unsure, use FSCRYPT_POLICY_FLAGS_PAD_32
+ (0x3).
+ - FSCRYPT_POLICY_FLAG_DIRECT_KEY: See `DIRECT_KEY policies`_.
+ - FSCRYPT_POLICY_FLAG_IV_INO_LBLK_64: See `IV_INO_LBLK_64
+ policies`_.
+ - FSCRYPT_POLICY_FLAG_IV_INO_LBLK_32: See `IV_INO_LBLK_32
+ policies`_.
+
+ v1 encryption policies only support the PAD_* and DIRECT_KEY flags.
+ The other flags are only supported by v2 encryption policies.
+
+ The DIRECT_KEY, IV_INO_LBLK_64, and IV_INO_LBLK_32 flags are
+ mutually exclusive.
+
+- For v2 encryption policies, ``__reserved`` must be zeroed.
+
+- For v1 encryption policies, ``master_key_descriptor`` specifies how
+ to find the master key in a keyring; see `Adding keys`_. It is up
+ to userspace to choose a unique ``master_key_descriptor`` for each
+ master key. The e4crypt and fscrypt tools use the first 8 bytes of
``SHA-512(SHA-512(master_key))``, but this particular scheme is not
required. Also, the master key need not be in the keyring yet when
FS_IOC_SET_ENCRYPTION_POLICY is executed. However, it must be added
before any files can be created in the encrypted directory.
+ For v2 encryption policies, ``master_key_descriptor`` has been
+ replaced with ``master_key_identifier``, which is longer and cannot
+ be arbitrarily chosen. Instead, the key must first be added using
+ `FS_IOC_ADD_ENCRYPTION_KEY`_. Then, the ``key_spec.u.identifier``
+ the kernel returned in the :c:type:`struct fscrypt_add_key_arg` must
+ be used as the ``master_key_identifier`` in the :c:type:`struct
+ fscrypt_policy_v2`.
+
If the file is not yet encrypted, then FS_IOC_SET_ENCRYPTION_POLICY
verifies that the file is an empty directory. If so, the specified
encryption policy is assigned to the directory, turning it into an
@@ -300,6 +527,15 @@
returns 0. Otherwise, it fails with EEXIST. This works on both
regular files and directories, including nonempty directories.
+When a v2 encryption policy is assigned to a directory, it is also
+required that either the specified key has been added by the current
+user or that the caller has CAP_FOWNER in the initial user namespace.
+(This is needed to prevent a user from encrypting their data with
+another user's key.) The key must remain added while
+FS_IOC_SET_ENCRYPTION_POLICY is executing. However, if the new
+encrypted directory does not need to be accessed immediately, then the
+key can be removed right away afterwards.
+
Note that the ext4 filesystem does not allow the root directory to be
encrypted, even if it is empty. Users who want to encrypt an entire
filesystem with one key should consider using dm-crypt instead.
@@ -312,15 +548,21 @@
- ``EEXIST``: the file is already encrypted with an encryption policy
different from the one specified
- ``EINVAL``: an invalid encryption policy was specified (invalid
- version, mode(s), or flags)
+ version, mode(s), or flags; or reserved bits were set); or a v1
+ encryption policy was specified but the directory has the casefold
+ flag enabled (casefolding is incompatible with v1 policies).
+- ``ENOKEY``: a v2 encryption policy was specified, but the key with
+ the specified ``master_key_identifier`` has not been added, nor does
+ the process have the CAP_FOWNER capability in the initial user
+ namespace
- ``ENOTDIR``: the file is unencrypted and is a regular file, not a
directory
- ``ENOTEMPTY``: the file is unencrypted and is a nonempty directory
- ``ENOTTY``: this type of filesystem does not implement encryption
- ``EOPNOTSUPP``: the kernel was not configured with encryption
- support for this filesystem, or the filesystem superblock has not
+ support for filesystems, or the filesystem superblock has not
had encryption enabled on it. (For example, to use encryption on an
- ext4 filesystem, CONFIG_EXT4_ENCRYPTION must be enabled in the
+ ext4 filesystem, CONFIG_FS_ENCRYPTION must be enabled in the
kernel config, and the superblock must have had the "encrypt"
feature flag enabled using ``tune2fs -O encrypt`` or ``mkfs.ext4 -O
encrypt``.)
@@ -331,25 +573,79 @@
Getting an encryption policy
----------------------------
-The FS_IOC_GET_ENCRYPTION_POLICY ioctl retrieves the :c:type:`struct
-fscrypt_policy`, if any, for a directory or regular file. See above
-for the struct definition. No additional permissions are required
-beyond the ability to open the file.
+Two ioctls are available to get a file's encryption policy:
-FS_IOC_GET_ENCRYPTION_POLICY can fail with the following errors:
+- `FS_IOC_GET_ENCRYPTION_POLICY_EX`_
+- `FS_IOC_GET_ENCRYPTION_POLICY`_
+
+The extended (_EX) version of the ioctl is more general and is
+recommended to use when possible. However, on older kernels only the
+original ioctl is available. Applications should try the extended
+version, and if it fails with ENOTTY fall back to the original
+version.
+
+FS_IOC_GET_ENCRYPTION_POLICY_EX
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The FS_IOC_GET_ENCRYPTION_POLICY_EX ioctl retrieves the encryption
+policy, if any, for a directory or regular file. No additional
+permissions are required beyond the ability to open the file. It
+takes in a pointer to a :c:type:`struct fscrypt_get_policy_ex_arg`,
+defined as follows::
+
+ struct fscrypt_get_policy_ex_arg {
+ __u64 policy_size; /* input/output */
+ union {
+ __u8 version;
+ struct fscrypt_policy_v1 v1;
+ struct fscrypt_policy_v2 v2;
+ } policy; /* output */
+ };
+
+The caller must initialize ``policy_size`` to the size available for
+the policy struct, i.e. ``sizeof(arg.policy)``.
+
+On success, the policy struct is returned in ``policy``, and its
+actual size is returned in ``policy_size``. ``policy.version`` should
+be checked to determine the version of policy returned. Note that the
+version code for the "v1" policy is actually 0 (FSCRYPT_POLICY_V1).
+
+FS_IOC_GET_ENCRYPTION_POLICY_EX can fail with the following errors:
- ``EINVAL``: the file is encrypted, but it uses an unrecognized
- encryption context format
+ encryption policy version
- ``ENODATA``: the file is not encrypted
-- ``ENOTTY``: this type of filesystem does not implement encryption
+- ``ENOTTY``: this type of filesystem does not implement encryption,
+ or this kernel is too old to support FS_IOC_GET_ENCRYPTION_POLICY_EX
+ (try FS_IOC_GET_ENCRYPTION_POLICY instead)
- ``EOPNOTSUPP``: the kernel was not configured with encryption
- support for this filesystem
+ support for this filesystem, or the filesystem superblock has not
+ had encryption enabled on it
+- ``EOVERFLOW``: the file is encrypted and uses a recognized
+ encryption policy version, but the policy struct does not fit into
+ the provided buffer
Note: if you only need to know whether a file is encrypted or not, on
most filesystems it is also possible to use the FS_IOC_GETFLAGS ioctl
and check for FS_ENCRYPT_FL, or to use the statx() system call and
check for STATX_ATTR_ENCRYPTED in stx_attributes.
+FS_IOC_GET_ENCRYPTION_POLICY
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The FS_IOC_GET_ENCRYPTION_POLICY ioctl can also retrieve the
+encryption policy, if any, for a directory or regular file. However,
+unlike `FS_IOC_GET_ENCRYPTION_POLICY_EX`_,
+FS_IOC_GET_ENCRYPTION_POLICY only supports the original policy
+version. It takes in a pointer directly to a :c:type:`struct
+fscrypt_policy_v1` rather than a :c:type:`struct
+fscrypt_get_policy_ex_arg`.
+
+The error codes for FS_IOC_GET_ENCRYPTION_POLICY are the same as those
+for FS_IOC_GET_ENCRYPTION_POLICY_EX, except that
+FS_IOC_GET_ENCRYPTION_POLICY also returns ``EINVAL`` if the file is
+encrypted using a newer encryption policy version.
+
Getting the per-filesystem salt
-------------------------------
@@ -362,11 +658,158 @@
FS_IOC_GET_ENCRYPTION_PWSALT is deprecated. Instead, prefer to
generate and manage any needed salt(s) in userspace.
+Getting a file's encryption nonce
+---------------------------------
+
+Since Linux v5.7, the ioctl FS_IOC_GET_ENCRYPTION_NONCE is supported.
+On encrypted files and directories it gets the inode's 16-byte nonce.
+On unencrypted files and directories, it fails with ENODATA.
+
+This ioctl can be useful for automated tests which verify that the
+encryption is being done correctly. It is not needed for normal use
+of fscrypt.
+
Adding keys
-----------
-To provide a master key, userspace must add it to an appropriate
-keyring using the add_key() system call (see:
+FS_IOC_ADD_ENCRYPTION_KEY
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The FS_IOC_ADD_ENCRYPTION_KEY ioctl adds a master encryption key to
+the filesystem, making all files on the filesystem which were
+encrypted using that key appear "unlocked", i.e. in plaintext form.
+It can be executed on any file or directory on the target filesystem,
+but using the filesystem's root directory is recommended. It takes in
+a pointer to a :c:type:`struct fscrypt_add_key_arg`, defined as
+follows::
+
+ struct fscrypt_add_key_arg {
+ struct fscrypt_key_specifier key_spec;
+ __u32 raw_size;
+ __u32 key_id;
+ __u32 __reserved[8];
+ __u8 raw[];
+ };
+
+ #define FSCRYPT_KEY_SPEC_TYPE_DESCRIPTOR 1
+ #define FSCRYPT_KEY_SPEC_TYPE_IDENTIFIER 2
+
+ struct fscrypt_key_specifier {
+ __u32 type; /* one of FSCRYPT_KEY_SPEC_TYPE_* */
+ __u32 __reserved;
+ union {
+ __u8 __reserved[32]; /* reserve some extra space */
+ __u8 descriptor[FSCRYPT_KEY_DESCRIPTOR_SIZE];
+ __u8 identifier[FSCRYPT_KEY_IDENTIFIER_SIZE];
+ } u;
+ };
+
+ struct fscrypt_provisioning_key_payload {
+ __u32 type;
+ __u32 __reserved;
+ __u8 raw[];
+ };
+
+:c:type:`struct fscrypt_add_key_arg` must be zeroed, then initialized
+as follows:
+
+- If the key is being added for use by v1 encryption policies, then
+ ``key_spec.type`` must contain FSCRYPT_KEY_SPEC_TYPE_DESCRIPTOR, and
+ ``key_spec.u.descriptor`` must contain the descriptor of the key
+ being added, corresponding to the value in the
+ ``master_key_descriptor`` field of :c:type:`struct
+ fscrypt_policy_v1`. To add this type of key, the calling process
+ must have the CAP_SYS_ADMIN capability in the initial user
+ namespace.
+
+ Alternatively, if the key is being added for use by v2 encryption
+ policies, then ``key_spec.type`` must contain
+ FSCRYPT_KEY_SPEC_TYPE_IDENTIFIER, and ``key_spec.u.identifier`` is
+ an *output* field which the kernel fills in with a cryptographic
+ hash of the key. To add this type of key, the calling process does
+ not need any privileges. However, the number of keys that can be
+ added is limited by the user's quota for the keyrings service (see
+ ``Documentation/security/keys/core.rst``).
+
+- ``raw_size`` must be the size of the ``raw`` key provided, in bytes.
+ Alternatively, if ``key_id`` is nonzero, this field must be 0, since
+ in that case the size is implied by the specified Linux keyring key.
+
+- ``key_id`` is 0 if the raw key is given directly in the ``raw``
+ field. Otherwise ``key_id`` is the ID of a Linux keyring key of
+ type "fscrypt-provisioning" whose payload is a :c:type:`struct
+ fscrypt_provisioning_key_payload` whose ``raw`` field contains the
+ raw key and whose ``type`` field matches ``key_spec.type``. Since
+ ``raw`` is variable-length, the total size of this key's payload
+ must be ``sizeof(struct fscrypt_provisioning_key_payload)`` plus the
+ raw key size. The process must have Search permission on this key.
+
+ Most users should leave this 0 and specify the raw key directly.
+ The support for specifying a Linux keyring key is intended mainly to
+ allow re-adding keys after a filesystem is unmounted and re-mounted,
+ without having to store the raw keys in userspace memory.
+
+- ``raw`` is a variable-length field which must contain the actual
+ key, ``raw_size`` bytes long. Alternatively, if ``key_id`` is
+ nonzero, then this field is unused.
+
+For v2 policy keys, the kernel keeps track of which user (identified
+by effective user ID) added the key, and only allows the key to be
+removed by that user --- or by "root", if they use
+`FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS`_.
+
+However, if another user has added the key, it may be desirable to
+prevent that other user from unexpectedly removing it. Therefore,
+FS_IOC_ADD_ENCRYPTION_KEY may also be used to add a v2 policy key
+*again*, even if it's already added by other user(s). In this case,
+FS_IOC_ADD_ENCRYPTION_KEY will just install a claim to the key for the
+current user, rather than actually add the key again (but the raw key
+must still be provided, as a proof of knowledge).
+
+FS_IOC_ADD_ENCRYPTION_KEY returns 0 if either the key or a claim to
+the key was either added or already exists.
+
+FS_IOC_ADD_ENCRYPTION_KEY can fail with the following errors:
+
+- ``EACCES``: FSCRYPT_KEY_SPEC_TYPE_DESCRIPTOR was specified, but the
+ caller does not have the CAP_SYS_ADMIN capability in the initial
+ user namespace; or the raw key was specified by Linux key ID but the
+ process lacks Search permission on the key.
+- ``EDQUOT``: the key quota for this user would be exceeded by adding
+ the key
+- ``EINVAL``: invalid key size or key specifier type, or reserved bits
+ were set
+- ``EKEYREJECTED``: the raw key was specified by Linux key ID, but the
+ key has the wrong type
+- ``ENOKEY``: the raw key was specified by Linux key ID, but no key
+ exists with that ID
+- ``ENOTTY``: this type of filesystem does not implement encryption
+- ``EOPNOTSUPP``: the kernel was not configured with encryption
+ support for this filesystem, or the filesystem superblock has not
+ had encryption enabled on it
+
+Legacy method
+~~~~~~~~~~~~~
+
+For v1 encryption policies, a master encryption key can also be
+provided by adding it to a process-subscribed keyring, e.g. to a
+session keyring, or to a user keyring if the user keyring is linked
+into the session keyring.
+
+This method is deprecated (and not supported for v2 encryption
+policies) for several reasons. First, it cannot be used in
+combination with FS_IOC_REMOVE_ENCRYPTION_KEY (see `Removing keys`_),
+so for removing a key a workaround such as keyctl_unlink() in
+combination with ``sync; echo 2 > /proc/sys/vm/drop_caches`` would
+have to be used. Second, it doesn't match the fact that the
+locked/unlocked status of encrypted files (i.e. whether they appear to
+be in plaintext form or in ciphertext form) is global. This mismatch
+has caused much confusion as well as real problems when processes
+running under different UIDs, such as a ``sudo`` command, need to
+access encrypted files.
+
+Nevertheless, to add a key to one of the process-subscribed keyrings,
+the add_key() system call can be used (see:
``Documentation/security/keys/core.rst``). The key type must be
"logon"; keys of this type are kept in kernel memory and cannot be
read back by userspace. The key description must be "fscrypt:"
@@ -374,12 +817,12 @@
``master_key_descriptor`` that was set in the encryption policy. The
key payload must conform to the following structure::
- #define FS_MAX_KEY_SIZE 64
+ #define FSCRYPT_MAX_KEY_SIZE 64
struct fscrypt_key {
- u32 mode;
- u8 raw[FS_MAX_KEY_SIZE];
- u32 size;
+ __u32 mode;
+ __u8 raw[FSCRYPT_MAX_KEY_SIZE];
+ __u32 size;
};
``mode`` is ignored; just set it to 0. The actual key is provided in
@@ -391,26 +834,194 @@
filesystem-specific prefixes are deprecated and should not be used in
new programs.
-There are several different types of keyrings in which encryption keys
-may be placed, such as a session keyring, a user session keyring, or a
-user keyring. Each key must be placed in a keyring that is "attached"
-to all processes that might need to access files encrypted with it, in
-the sense that request_key() will find the key. Generally, if only
-processes belonging to a specific user need to access a given
-encrypted directory and no session keyring has been installed, then
-that directory's key should be placed in that user's user session
-keyring or user keyring. Otherwise, a session keyring should be
-installed if needed, and the key should be linked into that session
-keyring, or in a keyring linked into that session keyring.
+Removing keys
+-------------
-Note: introducing the complex visibility semantics of keyrings here
-was arguably a mistake --- especially given that by design, after any
-process successfully opens an encrypted file (thereby setting up the
-per-file key), possessing the keyring key is not actually required for
-any process to read/write the file until its in-memory inode is
-evicted. In the future there probably should be a way to provide keys
-directly to the filesystem instead, which would make the intended
-semantics clearer.
+Two ioctls are available for removing a key that was added by
+`FS_IOC_ADD_ENCRYPTION_KEY`_:
+
+- `FS_IOC_REMOVE_ENCRYPTION_KEY`_
+- `FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS`_
+
+These two ioctls differ only in cases where v2 policy keys are added
+or removed by non-root users.
+
+These ioctls don't work on keys that were added via the legacy
+process-subscribed keyrings mechanism.
+
+Before using these ioctls, read the `Kernel memory compromise`_
+section for a discussion of the security goals and limitations of
+these ioctls.
+
+FS_IOC_REMOVE_ENCRYPTION_KEY
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The FS_IOC_REMOVE_ENCRYPTION_KEY ioctl removes a claim to a master
+encryption key from the filesystem, and possibly removes the key
+itself. It can be executed on any file or directory on the target
+filesystem, but using the filesystem's root directory is recommended.
+It takes in a pointer to a :c:type:`struct fscrypt_remove_key_arg`,
+defined as follows::
+
+ struct fscrypt_remove_key_arg {
+ struct fscrypt_key_specifier key_spec;
+ #define FSCRYPT_KEY_REMOVAL_STATUS_FLAG_FILES_BUSY 0x00000001
+ #define FSCRYPT_KEY_REMOVAL_STATUS_FLAG_OTHER_USERS 0x00000002
+ __u32 removal_status_flags; /* output */
+ __u32 __reserved[5];
+ };
+
+This structure must be zeroed, then initialized as follows:
+
+- The key to remove is specified by ``key_spec``:
+
+ - To remove a key used by v1 encryption policies, set
+ ``key_spec.type`` to FSCRYPT_KEY_SPEC_TYPE_DESCRIPTOR and fill
+ in ``key_spec.u.descriptor``. To remove this type of key, the
+ calling process must have the CAP_SYS_ADMIN capability in the
+ initial user namespace.
+
+ - To remove a key used by v2 encryption policies, set
+ ``key_spec.type`` to FSCRYPT_KEY_SPEC_TYPE_IDENTIFIER and fill
+ in ``key_spec.u.identifier``.
+
+For v2 policy keys, this ioctl is usable by non-root users. However,
+to make this possible, it actually just removes the current user's
+claim to the key, undoing a single call to FS_IOC_ADD_ENCRYPTION_KEY.
+Only after all claims are removed is the key really removed.
+
+For example, if FS_IOC_ADD_ENCRYPTION_KEY was called with uid 1000,
+then the key will be "claimed" by uid 1000, and
+FS_IOC_REMOVE_ENCRYPTION_KEY will only succeed as uid 1000. Or, if
+both uids 1000 and 2000 added the key, then for each uid
+FS_IOC_REMOVE_ENCRYPTION_KEY will only remove their own claim. Only
+once *both* are removed is the key really removed. (Think of it like
+unlinking a file that may have hard links.)
+
+If FS_IOC_REMOVE_ENCRYPTION_KEY really removes the key, it will also
+try to "lock" all files that had been unlocked with the key. It won't
+lock files that are still in-use, so this ioctl is expected to be used
+in cooperation with userspace ensuring that none of the files are
+still open. However, if necessary, this ioctl can be executed again
+later to retry locking any remaining files.
+
+FS_IOC_REMOVE_ENCRYPTION_KEY returns 0 if either the key was removed
+(but may still have files remaining to be locked), the user's claim to
+the key was removed, or the key was already removed but had files
+remaining to be the locked so the ioctl retried locking them. In any
+of these cases, ``removal_status_flags`` is filled in with the
+following informational status flags:
+
+- ``FSCRYPT_KEY_REMOVAL_STATUS_FLAG_FILES_BUSY``: set if some file(s)
+ are still in-use. Not guaranteed to be set in the case where only
+ the user's claim to the key was removed.
+- ``FSCRYPT_KEY_REMOVAL_STATUS_FLAG_OTHER_USERS``: set if only the
+ user's claim to the key was removed, not the key itself
+
+FS_IOC_REMOVE_ENCRYPTION_KEY can fail with the following errors:
+
+- ``EACCES``: The FSCRYPT_KEY_SPEC_TYPE_DESCRIPTOR key specifier type
+ was specified, but the caller does not have the CAP_SYS_ADMIN
+ capability in the initial user namespace
+- ``EINVAL``: invalid key specifier type, or reserved bits were set
+- ``ENOKEY``: the key object was not found at all, i.e. it was never
+ added in the first place or was already fully removed including all
+ files locked; or, the user does not have a claim to the key (but
+ someone else does).
+- ``ENOTTY``: this type of filesystem does not implement encryption
+- ``EOPNOTSUPP``: the kernel was not configured with encryption
+ support for this filesystem, or the filesystem superblock has not
+ had encryption enabled on it
+
+FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS is exactly the same as
+`FS_IOC_REMOVE_ENCRYPTION_KEY`_, except that for v2 policy keys, the
+ALL_USERS version of the ioctl will remove all users' claims to the
+key, not just the current user's. I.e., the key itself will always be
+removed, no matter how many users have added it. This difference is
+only meaningful if non-root users are adding and removing keys.
+
+Because of this, FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS also requires
+"root", namely the CAP_SYS_ADMIN capability in the initial user
+namespace. Otherwise it will fail with EACCES.
+
+Getting key status
+------------------
+
+FS_IOC_GET_ENCRYPTION_KEY_STATUS
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The FS_IOC_GET_ENCRYPTION_KEY_STATUS ioctl retrieves the status of a
+master encryption key. It can be executed on any file or directory on
+the target filesystem, but using the filesystem's root directory is
+recommended. It takes in a pointer to a :c:type:`struct
+fscrypt_get_key_status_arg`, defined as follows::
+
+ struct fscrypt_get_key_status_arg {
+ /* input */
+ struct fscrypt_key_specifier key_spec;
+ __u32 __reserved[6];
+
+ /* output */
+ #define FSCRYPT_KEY_STATUS_ABSENT 1
+ #define FSCRYPT_KEY_STATUS_PRESENT 2
+ #define FSCRYPT_KEY_STATUS_INCOMPLETELY_REMOVED 3
+ __u32 status;
+ #define FSCRYPT_KEY_STATUS_FLAG_ADDED_BY_SELF 0x00000001
+ __u32 status_flags;
+ __u32 user_count;
+ __u32 __out_reserved[13];
+ };
+
+The caller must zero all input fields, then fill in ``key_spec``:
+
+ - To get the status of a key for v1 encryption policies, set
+ ``key_spec.type`` to FSCRYPT_KEY_SPEC_TYPE_DESCRIPTOR and fill
+ in ``key_spec.u.descriptor``.
+
+ - To get the status of a key for v2 encryption policies, set
+ ``key_spec.type`` to FSCRYPT_KEY_SPEC_TYPE_IDENTIFIER and fill
+ in ``key_spec.u.identifier``.
+
+On success, 0 is returned and the kernel fills in the output fields:
+
+- ``status`` indicates whether the key is absent, present, or
+ incompletely removed. Incompletely removed means that the master
+ secret has been removed, but some files are still in use; i.e.,
+ `FS_IOC_REMOVE_ENCRYPTION_KEY`_ returned 0 but set the informational
+ status flag FSCRYPT_KEY_REMOVAL_STATUS_FLAG_FILES_BUSY.
+
+- ``status_flags`` can contain the following flags:
+
+ - ``FSCRYPT_KEY_STATUS_FLAG_ADDED_BY_SELF`` indicates that the key
+ has added by the current user. This is only set for keys
+ identified by ``identifier`` rather than by ``descriptor``.
+
+- ``user_count`` specifies the number of users who have added the key.
+ This is only set for keys identified by ``identifier`` rather than
+ by ``descriptor``.
+
+FS_IOC_GET_ENCRYPTION_KEY_STATUS can fail with the following errors:
+
+- ``EINVAL``: invalid key specifier type, or reserved bits were set
+- ``ENOTTY``: this type of filesystem does not implement encryption
+- ``EOPNOTSUPP``: the kernel was not configured with encryption
+ support for this filesystem, or the filesystem superblock has not
+ had encryption enabled on it
+
+Among other use cases, FS_IOC_GET_ENCRYPTION_KEY_STATUS can be useful
+for determining whether the key for a given encrypted directory needs
+to be added before prompting the user for the passphrase needed to
+derive the key.
+
+FS_IOC_GET_ENCRYPTION_KEY_STATUS can only get the status of keys in
+the filesystem-level keyring, i.e. the keyring managed by
+`FS_IOC_ADD_ENCRYPTION_KEY`_ and `FS_IOC_REMOVE_ENCRYPTION_KEY`_. It
+cannot get the status of a key that has only been added for use by v1
+encryption policies using the legacy mechanism involving
+process-subscribed keyrings.
Access semantics
================
@@ -473,7 +1084,7 @@
Some filesystem operations may be performed on encrypted regular
files, directories, and symlinks even before their encryption key has
-been provided:
+been added, or after their encryption key has been removed:
- File metadata may be read, e.g. using stat().
@@ -538,33 +1149,44 @@
------------------
An encryption policy is represented on-disk by a :c:type:`struct
-fscrypt_context`. It is up to individual filesystems to decide where
-to store it, but normally it would be stored in a hidden extended
-attribute. It should *not* be exposed by the xattr-related system
-calls such as getxattr() and setxattr() because of the special
-semantics of the encryption xattr. (In particular, there would be
-much confusion if an encryption policy were to be added to or removed
-from anything other than an empty directory.) The struct is defined
-as follows::
+fscrypt_context_v1` or a :c:type:`struct fscrypt_context_v2`. It is
+up to individual filesystems to decide where to store it, but normally
+it would be stored in a hidden extended attribute. It should *not* be
+exposed by the xattr-related system calls such as getxattr() and
+setxattr() because of the special semantics of the encryption xattr.
+(In particular, there would be much confusion if an encryption policy
+were to be added to or removed from anything other than an empty
+directory.) These structs are defined as follows::
- #define FS_KEY_DESCRIPTOR_SIZE 8
#define FS_KEY_DERIVATION_NONCE_SIZE 16
- struct fscrypt_context {
- u8 format;
+ #define FSCRYPT_KEY_DESCRIPTOR_SIZE 8
+ struct fscrypt_context_v1 {
+ u8 version;
u8 contents_encryption_mode;
u8 filenames_encryption_mode;
u8 flags;
- u8 master_key_descriptor[FS_KEY_DESCRIPTOR_SIZE];
+ u8 master_key_descriptor[FSCRYPT_KEY_DESCRIPTOR_SIZE];
u8 nonce[FS_KEY_DERIVATION_NONCE_SIZE];
};
-Note that :c:type:`struct fscrypt_context` contains the same
-information as :c:type:`struct fscrypt_policy` (see `Setting an
-encryption policy`_), except that :c:type:`struct fscrypt_context`
-also contains a nonce. The nonce is randomly generated by the kernel
-and is used to derive the inode's encryption key as described in
-`Per-file keys`_.
+ #define FSCRYPT_KEY_IDENTIFIER_SIZE 16
+ struct fscrypt_context_v2 {
+ u8 version;
+ u8 contents_encryption_mode;
+ u8 filenames_encryption_mode;
+ u8 flags;
+ u8 __reserved[4];
+ u8 master_key_identifier[FSCRYPT_KEY_IDENTIFIER_SIZE];
+ u8 nonce[FS_KEY_DERIVATION_NONCE_SIZE];
+ };
+
+The context structs contain the same information as the corresponding
+policy structs (see `Setting an encryption policy`_), except that the
+context structs also contain a nonce. The nonce is randomly generated
+by the kernel and is used as KDF input or as a tweak to cause
+different files to be encrypted differently; see `Per-file encryption
+keys`_ and `DIRECT_KEY policies`_.
Data path changes
-----------------
@@ -616,9 +1238,48 @@
allows the filesystem to still, with a high degree of confidence, map
the filename given in ->lookup() back to a particular directory entry
that was previously listed by readdir(). See :c:type:`struct
-fscrypt_digested_name` in the source for more details.
+fscrypt_nokey_name` in the source for more details.
Note that the precise way that filenames are presented to userspace
without the key is subject to change in the future. It is only meant
as a way to temporarily present valid filenames so that commands like
``rm -r`` work as expected on encrypted directories.
+
+Tests
+=====
+
+To test fscrypt, use xfstests, which is Linux's de facto standard
+filesystem test suite. First, run all the tests in the "encrypt"
+group on the relevant filesystem(s). For example, to test ext4 and
+f2fs encryption using `kvm-xfstests
+<https://github.com/tytso/xfstests-bld/blob/master/Documentation/kvm-quickstart.md>`_::
+
+ kvm-xfstests -c ext4,f2fs -g encrypt
+
+UBIFS encryption can also be tested this way, but it should be done in
+a separate command, and it takes some time for kvm-xfstests to set up
+emulated UBI volumes::
+
+ kvm-xfstests -c ubifs -g encrypt
+
+No tests should fail. However, tests that use non-default encryption
+modes (e.g. generic/549 and generic/550) will be skipped if the needed
+algorithms were not built into the kernel's crypto API. Also, tests
+that access the raw block device (e.g. generic/399, generic/548,
+generic/549, generic/550) will be skipped on UBIFS.
+
+Besides running the "encrypt" group tests, for ext4 and f2fs it's also
+possible to run most xfstests with the "test_dummy_encryption" mount
+option. This option causes all new files to be automatically
+encrypted with a dummy key, without having to make any API calls.
+This tests the encrypted I/O paths more thoroughly. To do this with
+kvm-xfstests, use the "encrypt" filesystem configuration::
+
+ kvm-xfstests -c ext4/encrypt,f2fs/encrypt -g auto
+
+Because this runs many more tests than "-g encrypt" does, it takes
+much longer to run; so also consider using `gce-xfstests
+<https://github.com/tytso/xfstests-bld/blob/master/Documentation/gce-xfstests.md>`_
+instead of kvm-xfstests::
+
+ gce-xfstests -c ext4/encrypt,f2fs/encrypt -g auto
diff --git a/Documentation/filesystems/fsverity.rst b/Documentation/filesystems/fsverity.rst
new file mode 100644
index 0000000..28ec7ba
--- /dev/null
+++ b/Documentation/filesystems/fsverity.rst
@@ -0,0 +1,730 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+.. _fsverity:
+
+=======================================================
+fs-verity: read-only file-based authenticity protection
+=======================================================
+
+Introduction
+============
+
+fs-verity (``fs/verity/``) is a support layer that filesystems can
+hook into to support transparent integrity and authenticity protection
+of read-only files. Currently, it is supported by the ext4 and f2fs
+filesystems. Like fscrypt, not too much filesystem-specific code is
+needed to support fs-verity.
+
+fs-verity is similar to `dm-verity
+<https://www.kernel.org/doc/Documentation/device-mapper/verity.txt>`_
+but works on files rather than block devices. On regular files on
+filesystems supporting fs-verity, userspace can execute an ioctl that
+causes the filesystem to build a Merkle tree for the file and persist
+it to a filesystem-specific location associated with the file.
+
+After this, the file is made readonly, and all reads from the file are
+automatically verified against the file's Merkle tree. Reads of any
+corrupted data, including mmap reads, will fail.
+
+Userspace can use another ioctl to retrieve the root hash (actually
+the "fs-verity file digest", which is a hash that includes the Merkle
+tree root hash) that fs-verity is enforcing for the file. This ioctl
+executes in constant time, regardless of the file size.
+
+fs-verity is essentially a way to hash a file in constant time,
+subject to the caveat that reads which would violate the hash will
+fail at runtime.
+
+Use cases
+=========
+
+By itself, the base fs-verity feature only provides integrity
+protection, i.e. detection of accidental (non-malicious) corruption.
+
+However, because fs-verity makes retrieving the file hash extremely
+efficient, it's primarily meant to be used as a tool to support
+authentication (detection of malicious modifications) or auditing
+(logging file hashes before use).
+
+Trusted userspace code (e.g. operating system code running on a
+read-only partition that is itself authenticated by dm-verity) can
+authenticate the contents of an fs-verity file by using the
+`FS_IOC_MEASURE_VERITY`_ ioctl to retrieve its hash, then verifying a
+digital signature of it.
+
+A standard file hash could be used instead of fs-verity. However,
+this is inefficient if the file is large and only a small portion may
+be accessed. This is often the case for Android application package
+(APK) files, for example. These typically contain many translations,
+classes, and other resources that are infrequently or even never
+accessed on a particular device. It would be slow and wasteful to
+read and hash the entire file before starting the application.
+
+Unlike an ahead-of-time hash, fs-verity also re-verifies data each
+time it's paged in. This ensures that malicious disk firmware can't
+undetectably change the contents of the file at runtime.
+
+fs-verity does not replace or obsolete dm-verity. dm-verity should
+still be used on read-only filesystems. fs-verity is for files that
+must live on a read-write filesystem because they are independently
+updated and potentially user-installed, so dm-verity cannot be used.
+
+The base fs-verity feature is a hashing mechanism only; actually
+authenticating the files is up to userspace. However, to meet some
+users' needs, fs-verity optionally supports a simple signature
+verification mechanism where users can configure the kernel to require
+that all fs-verity files be signed by a key loaded into a keyring; see
+`Built-in signature verification`_. Support for fs-verity file hashes
+in IMA (Integrity Measurement Architecture) policies is also planned.
+
+User API
+========
+
+FS_IOC_ENABLE_VERITY
+--------------------
+
+The FS_IOC_ENABLE_VERITY ioctl enables fs-verity on a file. It takes
+in a pointer to a :c:type:`struct fsverity_enable_arg`, defined as
+follows::
+
+ struct fsverity_enable_arg {
+ __u32 version;
+ __u32 hash_algorithm;
+ __u32 block_size;
+ __u32 salt_size;
+ __u64 salt_ptr;
+ __u32 sig_size;
+ __u32 __reserved1;
+ __u64 sig_ptr;
+ __u64 __reserved2[11];
+ };
+
+This structure contains the parameters of the Merkle tree to build for
+the file, and optionally contains a signature. It must be initialized
+as follows:
+
+- ``version`` must be 1.
+- ``hash_algorithm`` must be the identifier for the hash algorithm to
+ use for the Merkle tree, such as FS_VERITY_HASH_ALG_SHA256. See
+ ``include/uapi/linux/fsverity.h`` for the list of possible values.
+- ``block_size`` must be the Merkle tree block size. Currently, this
+ must be equal to the system page size, which is usually 4096 bytes.
+ Other sizes may be supported in the future. This value is not
+ necessarily the same as the filesystem block size.
+- ``salt_size`` is the size of the salt in bytes, or 0 if no salt is
+ provided. The salt is a value that is prepended to every hashed
+ block; it can be used to personalize the hashing for a particular
+ file or device. Currently the maximum salt size is 32 bytes.
+- ``salt_ptr`` is the pointer to the salt, or NULL if no salt is
+ provided.
+- ``sig_size`` is the size of the signature in bytes, or 0 if no
+ signature is provided. Currently the signature is (somewhat
+ arbitrarily) limited to 16128 bytes. See `Built-in signature
+ verification`_ for more information.
+- ``sig_ptr`` is the pointer to the signature, or NULL if no
+ signature is provided.
+- All reserved fields must be zeroed.
+
+FS_IOC_ENABLE_VERITY causes the filesystem to build a Merkle tree for
+the file and persist it to a filesystem-specific location associated
+with the file, then mark the file as a verity file. This ioctl may
+take a long time to execute on large files, and it is interruptible by
+fatal signals.
+
+FS_IOC_ENABLE_VERITY checks for write access to the inode. However,
+it must be executed on an O_RDONLY file descriptor and no processes
+can have the file open for writing. Attempts to open the file for
+writing while this ioctl is executing will fail with ETXTBSY. (This
+is necessary to guarantee that no writable file descriptors will exist
+after verity is enabled, and to guarantee that the file's contents are
+stable while the Merkle tree is being built over it.)
+
+On success, FS_IOC_ENABLE_VERITY returns 0, and the file becomes a
+verity file. On failure (including the case of interruption by a
+fatal signal), no changes are made to the file.
+
+FS_IOC_ENABLE_VERITY can fail with the following errors:
+
+- ``EACCES``: the process does not have write access to the file
+- ``EBADMSG``: the signature is malformed
+- ``EBUSY``: this ioctl is already running on the file
+- ``EEXIST``: the file already has verity enabled
+- ``EFAULT``: the caller provided inaccessible memory
+- ``EINTR``: the operation was interrupted by a fatal signal
+- ``EINVAL``: unsupported version, hash algorithm, or block size; or
+ reserved bits are set; or the file descriptor refers to neither a
+ regular file nor a directory.
+- ``EISDIR``: the file descriptor refers to a directory
+- ``EKEYREJECTED``: the signature doesn't match the file
+- ``EMSGSIZE``: the salt or signature is too long
+- ``ENOKEY``: the fs-verity keyring doesn't contain the certificate
+ needed to verify the signature
+- ``ENOPKG``: fs-verity recognizes the hash algorithm, but it's not
+ available in the kernel's crypto API as currently configured (e.g.
+ for SHA-512, missing CONFIG_CRYPTO_SHA512).
+- ``ENOTTY``: this type of filesystem does not implement fs-verity
+- ``EOPNOTSUPP``: the kernel was not configured with fs-verity
+ support; or the filesystem superblock has not had the 'verity'
+ feature enabled on it; or the filesystem does not support fs-verity
+ on this file. (See `Filesystem support`_.)
+- ``EPERM``: the file is append-only; or, a signature is required and
+ one was not provided.
+- ``EROFS``: the filesystem is read-only
+- ``ETXTBSY``: someone has the file open for writing. This can be the
+ caller's file descriptor, another open file descriptor, or the file
+ reference held by a writable memory map.
+
+FS_IOC_MEASURE_VERITY
+---------------------
+
+The FS_IOC_MEASURE_VERITY ioctl retrieves the digest of a verity file.
+The fs-verity file digest is a cryptographic digest that identifies
+the file contents that are being enforced on reads; it is computed via
+a Merkle tree and is different from a traditional full-file digest.
+
+This ioctl takes in a pointer to a variable-length structure::
+
+ struct fsverity_digest {
+ __u16 digest_algorithm;
+ __u16 digest_size; /* input/output */
+ __u8 digest[];
+ };
+
+``digest_size`` is an input/output field. On input, it must be
+initialized to the number of bytes allocated for the variable-length
+``digest`` field.
+
+On success, 0 is returned and the kernel fills in the structure as
+follows:
+
+- ``digest_algorithm`` will be the hash algorithm used for the file
+ digest. It will match ``fsverity_enable_arg::hash_algorithm``.
+- ``digest_size`` will be the size of the digest in bytes, e.g. 32
+ for SHA-256. (This can be redundant with ``digest_algorithm``.)
+- ``digest`` will be the actual bytes of the digest.
+
+FS_IOC_MEASURE_VERITY is guaranteed to execute in constant time,
+regardless of the size of the file.
+
+FS_IOC_MEASURE_VERITY can fail with the following errors:
+
+- ``EFAULT``: the caller provided inaccessible memory
+- ``ENODATA``: the file is not a verity file
+- ``ENOTTY``: this type of filesystem does not implement fs-verity
+- ``EOPNOTSUPP``: the kernel was not configured with fs-verity
+ support, or the filesystem superblock has not had the 'verity'
+ feature enabled on it. (See `Filesystem support`_.)
+- ``EOVERFLOW``: the digest is longer than the specified
+ ``digest_size`` bytes. Try providing a larger buffer.
+
+FS_IOC_GETFLAGS
+---------------
+
+The existing ioctl FS_IOC_GETFLAGS (which isn't specific to fs-verity)
+can also be used to check whether a file has fs-verity enabled or not.
+To do so, check for FS_VERITY_FL (0x00100000) in the returned flags.
+
+The verity flag is not settable via FS_IOC_SETFLAGS. You must use
+FS_IOC_ENABLE_VERITY instead, since parameters must be provided.
+
+statx
+-----
+
+Since Linux v5.5, the statx() system call sets STATX_ATTR_VERITY if
+the file has fs-verity enabled. This can perform better than
+FS_IOC_GETFLAGS and FS_IOC_MEASURE_VERITY because it doesn't require
+opening the file, and opening verity files can be expensive.
+
+Accessing verity files
+======================
+
+Applications can transparently access a verity file just like a
+non-verity one, with the following exceptions:
+
+- Verity files are readonly. They cannot be opened for writing or
+ truncate()d, even if the file mode bits allow it. Attempts to do
+ one of these things will fail with EPERM. However, changes to
+ metadata such as owner, mode, timestamps, and xattrs are still
+ allowed, since these are not measured by fs-verity. Verity files
+ can also still be renamed, deleted, and linked to.
+
+- Direct I/O is not supported on verity files. Attempts to use direct
+ I/O on such files will fall back to buffered I/O.
+
+- DAX (Direct Access) is not supported on verity files, because this
+ would circumvent the data verification.
+
+- Reads of data that doesn't match the verity Merkle tree will fail
+ with EIO (for read()) or SIGBUS (for mmap() reads).
+
+- If the sysctl "fs.verity.require_signatures" is set to 1 and the
+ file is not signed by a key in the fs-verity keyring, then opening
+ the file will fail. See `Built-in signature verification`_.
+
+Direct access to the Merkle tree is not supported. Therefore, if a
+verity file is copied, or is backed up and restored, then it will lose
+its "verity"-ness. fs-verity is primarily meant for files like
+executables that are managed by a package manager.
+
+File digest computation
+=======================
+
+This section describes how fs-verity hashes the file contents using a
+Merkle tree to produce the digest which cryptographically identifies
+the file contents. This algorithm is the same for all filesystems
+that support fs-verity.
+
+Userspace only needs to be aware of this algorithm if it needs to
+compute fs-verity file digests itself, e.g. in order to sign files.
+
+.. _fsverity_merkle_tree:
+
+Merkle tree
+-----------
+
+The file contents is divided into blocks, where the block size is
+configurable but is usually 4096 bytes. The end of the last block is
+zero-padded if needed. Each block is then hashed, producing the first
+level of hashes. Then, the hashes in this first level are grouped
+into 'blocksize'-byte blocks (zero-padding the ends as needed) and
+these blocks are hashed, producing the second level of hashes. This
+proceeds up the tree until only a single block remains. The hash of
+this block is the "Merkle tree root hash".
+
+If the file fits in one block and is nonempty, then the "Merkle tree
+root hash" is simply the hash of the single data block. If the file
+is empty, then the "Merkle tree root hash" is all zeroes.
+
+The "blocks" here are not necessarily the same as "filesystem blocks".
+
+If a salt was specified, then it's zero-padded to the closest multiple
+of the input size of the hash algorithm's compression function, e.g.
+64 bytes for SHA-256 or 128 bytes for SHA-512. The padded salt is
+prepended to every data or Merkle tree block that is hashed.
+
+The purpose of the block padding is to cause every hash to be taken
+over the same amount of data, which simplifies the implementation and
+keeps open more possibilities for hardware acceleration. The purpose
+of the salt padding is to make the salting "free" when the salted hash
+state is precomputed, then imported for each hash.
+
+Example: in the recommended configuration of SHA-256 and 4K blocks,
+128 hash values fit in each block. Thus, each level of the Merkle
+tree is approximately 128 times smaller than the previous, and for
+large files the Merkle tree's size converges to approximately 1/127 of
+the original file size. However, for small files, the padding is
+significant, making the space overhead proportionally more.
+
+.. _fsverity_descriptor:
+
+fs-verity descriptor
+--------------------
+
+By itself, the Merkle tree root hash is ambiguous. For example, it
+can't a distinguish a large file from a small second file whose data
+is exactly the top-level hash block of the first file. Ambiguities
+also arise from the convention of padding to the next block boundary.
+
+To solve this problem, the fs-verity file digest is actually computed
+as a hash of the following structure, which contains the Merkle tree
+root hash as well as other fields such as the file size::
+
+ struct fsverity_descriptor {
+ __u8 version; /* must be 1 */
+ __u8 hash_algorithm; /* Merkle tree hash algorithm */
+ __u8 log_blocksize; /* log2 of size of data and tree blocks */
+ __u8 salt_size; /* size of salt in bytes; 0 if none */
+ __le32 __reserved_0x04; /* must be 0 */
+ __le64 data_size; /* size of file the Merkle tree is built over */
+ __u8 root_hash[64]; /* Merkle tree root hash */
+ __u8 salt[32]; /* salt prepended to each hashed block */
+ __u8 __reserved[144]; /* must be 0's */
+ };
+
+Built-in signature verification
+===============================
+
+With CONFIG_FS_VERITY_BUILTIN_SIGNATURES=y, fs-verity supports putting
+a portion of an authentication policy (see `Use cases`_) in the
+kernel. Specifically, it adds support for:
+
+1. At fs-verity module initialization time, a keyring ".fs-verity" is
+ created. The root user can add trusted X.509 certificates to this
+ keyring using the add_key() system call, then (when done)
+ optionally use keyctl_restrict_keyring() to prevent additional
+ certificates from being added.
+
+2. `FS_IOC_ENABLE_VERITY`_ accepts a pointer to a PKCS#7 formatted
+ detached signature in DER format of the file's fs-verity digest.
+ On success, this signature is persisted alongside the Merkle tree.
+ Then, any time the file is opened, the kernel will verify the
+ file's actual digest against this signature, using the certificates
+ in the ".fs-verity" keyring.
+
+3. A new sysctl "fs.verity.require_signatures" is made available.
+ When set to 1, the kernel requires that all verity files have a
+ correctly signed digest as described in (2).
+
+fs-verity file digests must be signed in the following format, which
+is similar to the structure used by `FS_IOC_MEASURE_VERITY`_::
+
+ struct fsverity_formatted_digest {
+ char magic[8]; /* must be "FSVerity" */
+ __le16 digest_algorithm;
+ __le16 digest_size;
+ __u8 digest[];
+ };
+
+fs-verity's built-in signature verification support is meant as a
+relatively simple mechanism that can be used to provide some level of
+authenticity protection for verity files, as an alternative to doing
+the signature verification in userspace or using IMA-appraisal.
+However, with this mechanism, userspace programs still need to check
+that the verity bit is set, and there is no protection against verity
+files being swapped around.
+
+Filesystem support
+==================
+
+fs-verity is currently supported by the ext4 and f2fs filesystems.
+The CONFIG_FS_VERITY kconfig option must be enabled to use fs-verity
+on either filesystem.
+
+``include/linux/fsverity.h`` declares the interface between the
+``fs/verity/`` support layer and filesystems. Briefly, filesystems
+must provide an ``fsverity_operations`` structure that provides
+methods to read and write the verity metadata to a filesystem-specific
+location, including the Merkle tree blocks and
+``fsverity_descriptor``. Filesystems must also call functions in
+``fs/verity/`` at certain times, such as when a file is opened or when
+pages have been read into the pagecache. (See `Verifying data`_.)
+
+ext4
+----
+
+ext4 supports fs-verity since Linux v5.4 and e2fsprogs v1.45.2.
+
+To create verity files on an ext4 filesystem, the filesystem must have
+been formatted with ``-O verity`` or had ``tune2fs -O verity`` run on
+it. "verity" is an RO_COMPAT filesystem feature, so once set, old
+kernels will only be able to mount the filesystem readonly, and old
+versions of e2fsck will be unable to check the filesystem. Moreover,
+currently ext4 only supports mounting a filesystem with the "verity"
+feature when its block size is equal to PAGE_SIZE (often 4096 bytes).
+
+ext4 sets the EXT4_VERITY_FL on-disk inode flag on verity files. It
+can only be set by `FS_IOC_ENABLE_VERITY`_, and it cannot be cleared.
+
+ext4 also supports encryption, which can be used simultaneously with
+fs-verity. In this case, the plaintext data is verified rather than
+the ciphertext. This is necessary in order to make the fs-verity file
+digest meaningful, since every file is encrypted differently.
+
+ext4 stores the verity metadata (Merkle tree and fsverity_descriptor)
+past the end of the file, starting at the first 64K boundary beyond
+i_size. This approach works because (a) verity files are readonly,
+and (b) pages fully beyond i_size aren't visible to userspace but can
+be read/written internally by ext4 with only some relatively small
+changes to ext4. This approach avoids having to depend on the
+EA_INODE feature and on rearchitecturing ext4's xattr support to
+support paging multi-gigabyte xattrs into memory, and to support
+encrypting xattrs. Note that the verity metadata *must* be encrypted
+when the file is, since it contains hashes of the plaintext data.
+
+Currently, ext4 verity only supports the case where the Merkle tree
+block size, filesystem block size, and page size are all the same. It
+also only supports extent-based files.
+
+f2fs
+----
+
+f2fs supports fs-verity since Linux v5.4 and f2fs-tools v1.11.0.
+
+To create verity files on an f2fs filesystem, the filesystem must have
+been formatted with ``-O verity``.
+
+f2fs sets the FADVISE_VERITY_BIT on-disk inode flag on verity files.
+It can only be set by `FS_IOC_ENABLE_VERITY`_, and it cannot be
+cleared.
+
+Like ext4, f2fs stores the verity metadata (Merkle tree and
+fsverity_descriptor) past the end of the file, starting at the first
+64K boundary beyond i_size. See explanation for ext4 above.
+Moreover, f2fs supports at most 4096 bytes of xattr entries per inode
+which wouldn't be enough for even a single Merkle tree block.
+
+Currently, f2fs verity only supports a Merkle tree block size of 4096.
+Also, f2fs doesn't support enabling verity on files that currently
+have atomic or volatile writes pending.
+
+Implementation details
+======================
+
+Verifying data
+--------------
+
+fs-verity ensures that all reads of a verity file's data are verified,
+regardless of which syscall is used to do the read (e.g. mmap(),
+read(), pread()) and regardless of whether it's the first read or a
+later read (unless the later read can return cached data that was
+already verified). Below, we describe how filesystems implement this.
+
+Pagecache
+~~~~~~~~~
+
+For filesystems using Linux's pagecache, the ``->readpage()`` and
+``->readpages()`` methods must be modified to verify pages before they
+are marked Uptodate. Merely hooking ``->read_iter()`` would be
+insufficient, since ``->read_iter()`` is not used for memory maps.
+
+Therefore, fs/verity/ provides a function fsverity_verify_page() which
+verifies a page that has been read into the pagecache of a verity
+inode, but is still locked and not Uptodate, so it's not yet readable
+by userspace. As needed to do the verification,
+fsverity_verify_page() will call back into the filesystem to read
+Merkle tree pages via fsverity_operations::read_merkle_tree_page().
+
+fsverity_verify_page() returns false if verification failed; in this
+case, the filesystem must not set the page Uptodate. Following this,
+as per the usual Linux pagecache behavior, attempts by userspace to
+read() from the part of the file containing the page will fail with
+EIO, and accesses to the page within a memory map will raise SIGBUS.
+
+fsverity_verify_page() currently only supports the case where the
+Merkle tree block size is equal to PAGE_SIZE (often 4096 bytes).
+
+In principle, fsverity_verify_page() verifies the entire path in the
+Merkle tree from the data page to the root hash. However, for
+efficiency the filesystem may cache the hash pages. Therefore,
+fsverity_verify_page() only ascends the tree reading hash pages until
+an already-verified hash page is seen, as indicated by the PageChecked
+bit being set. It then verifies the path to that page.
+
+This optimization, which is also used by dm-verity, results in
+excellent sequential read performance. This is because usually (e.g.
+127 in 128 times for 4K blocks and SHA-256) the hash page from the
+bottom level of the tree will already be cached and checked from
+reading a previous data page. However, random reads perform worse.
+
+Block device based filesystems
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Block device based filesystems (e.g. ext4 and f2fs) in Linux also use
+the pagecache, so the above subsection applies too. However, they
+also usually read many pages from a file at once, grouped into a
+structure called a "bio". To make it easier for these types of
+filesystems to support fs-verity, fs/verity/ also provides a function
+fsverity_verify_bio() which verifies all pages in a bio.
+
+ext4 and f2fs also support encryption. If a verity file is also
+encrypted, the pages must be decrypted before being verified. To
+support this, these filesystems allocate a "post-read context" for
+each bio and store it in ``->bi_private``::
+
+ struct bio_post_read_ctx {
+ struct bio *bio;
+ struct work_struct work;
+ unsigned int cur_step;
+ unsigned int enabled_steps;
+ };
+
+``enabled_steps`` is a bitmask that specifies whether decryption,
+verity, or both is enabled. After the bio completes, for each needed
+postprocessing step the filesystem enqueues the bio_post_read_ctx on a
+workqueue, and then the workqueue work does the decryption or
+verification. Finally, pages where no decryption or verity error
+occurred are marked Uptodate, and the pages are unlocked.
+
+Files on ext4 and f2fs may contain holes. Normally, ``->readpages()``
+simply zeroes holes and sets the corresponding pages Uptodate; no bios
+are issued. To prevent this case from bypassing fs-verity, these
+filesystems use fsverity_verify_page() to verify hole pages.
+
+ext4 and f2fs disable direct I/O on verity files, since otherwise
+direct I/O would bypass fs-verity. (They also do the same for
+encrypted files.)
+
+Userspace utility
+=================
+
+This document focuses on the kernel, but a userspace utility for
+fs-verity can be found at:
+
+ https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/fsverity-utils.git
+
+See the README.md file in the fsverity-utils source tree for details,
+including examples of setting up fs-verity protected files.
+
+Tests
+=====
+
+To test fs-verity, use xfstests. For example, using `kvm-xfstests
+<https://github.com/tytso/xfstests-bld/blob/master/Documentation/kvm-quickstart.md>`_::
+
+ kvm-xfstests -c ext4,f2fs -g verity
+
+FAQ
+===
+
+This section answers frequently asked questions about fs-verity that
+weren't already directly answered in other parts of this document.
+
+:Q: Why isn't fs-verity part of IMA?
+:A: fs-verity and IMA (Integrity Measurement Architecture) have
+ different focuses. fs-verity is a filesystem-level mechanism for
+ hashing individual files using a Merkle tree. In contrast, IMA
+ specifies a system-wide policy that specifies which files are
+ hashed and what to do with those hashes, such as log them,
+ authenticate them, or add them to a measurement list.
+
+ IMA is planned to support the fs-verity hashing mechanism as an
+ alternative to doing full file hashes, for people who want the
+ performance and security benefits of the Merkle tree based hash.
+ But it doesn't make sense to force all uses of fs-verity to be
+ through IMA. As a standalone filesystem feature, fs-verity
+ already meets many users' needs, and it's testable like other
+ filesystem features e.g. with xfstests.
+
+:Q: Isn't fs-verity useless because the attacker can just modify the
+ hashes in the Merkle tree, which is stored on-disk?
+:A: To verify the authenticity of an fs-verity file you must verify
+ the authenticity of the "fs-verity file digest", which
+ incorporates the root hash of the Merkle tree. See `Use cases`_.
+
+:Q: Isn't fs-verity useless because the attacker can just replace a
+ verity file with a non-verity one?
+:A: See `Use cases`_. In the initial use case, it's really trusted
+ userspace code that authenticates the files; fs-verity is just a
+ tool to do this job efficiently and securely. The trusted
+ userspace code will consider non-verity files to be inauthentic.
+
+:Q: Why does the Merkle tree need to be stored on-disk? Couldn't you
+ store just the root hash?
+:A: If the Merkle tree wasn't stored on-disk, then you'd have to
+ compute the entire tree when the file is first accessed, even if
+ just one byte is being read. This is a fundamental consequence of
+ how Merkle tree hashing works. To verify a leaf node, you need to
+ verify the whole path to the root hash, including the root node
+ (the thing which the root hash is a hash of). But if the root
+ node isn't stored on-disk, you have to compute it by hashing its
+ children, and so on until you've actually hashed the entire file.
+
+ That defeats most of the point of doing a Merkle tree-based hash,
+ since if you have to hash the whole file ahead of time anyway,
+ then you could simply do sha256(file) instead. That would be much
+ simpler, and a bit faster too.
+
+ It's true that an in-memory Merkle tree could still provide the
+ advantage of verification on every read rather than just on the
+ first read. However, it would be inefficient because every time a
+ hash page gets evicted (you can't pin the entire Merkle tree into
+ memory, since it may be very large), in order to restore it you
+ again need to hash everything below it in the tree. This again
+ defeats most of the point of doing a Merkle tree-based hash, since
+ a single block read could trigger re-hashing gigabytes of data.
+
+:Q: But couldn't you store just the leaf nodes and compute the rest?
+:A: See previous answer; this really just moves up one level, since
+ one could alternatively interpret the data blocks as being the
+ leaf nodes of the Merkle tree. It's true that the tree can be
+ computed much faster if the leaf level is stored rather than just
+ the data, but that's only because each level is less than 1% the
+ size of the level below (assuming the recommended settings of
+ SHA-256 and 4K blocks). For the exact same reason, by storing
+ "just the leaf nodes" you'd already be storing over 99% of the
+ tree, so you might as well simply store the whole tree.
+
+:Q: Can the Merkle tree be built ahead of time, e.g. distributed as
+ part of a package that is installed to many computers?
+:A: This isn't currently supported. It was part of the original
+ design, but was removed to simplify the kernel UAPI and because it
+ wasn't a critical use case. Files are usually installed once and
+ used many times, and cryptographic hashing is somewhat fast on
+ most modern processors.
+
+:Q: Why doesn't fs-verity support writes?
+:A: Write support would be very difficult and would require a
+ completely different design, so it's well outside the scope of
+ fs-verity. Write support would require:
+
+ - A way to maintain consistency between the data and hashes,
+ including all levels of hashes, since corruption after a crash
+ (especially of potentially the entire file!) is unacceptable.
+ The main options for solving this are data journalling,
+ copy-on-write, and log-structured volume. But it's very hard to
+ retrofit existing filesystems with new consistency mechanisms.
+ Data journalling is available on ext4, but is very slow.
+
+ - Rebuilding the the Merkle tree after every write, which would be
+ extremely inefficient. Alternatively, a different authenticated
+ dictionary structure such as an "authenticated skiplist" could
+ be used. However, this would be far more complex.
+
+ Compare it to dm-verity vs. dm-integrity. dm-verity is very
+ simple: the kernel just verifies read-only data against a
+ read-only Merkle tree. In contrast, dm-integrity supports writes
+ but is slow, is much more complex, and doesn't actually support
+ full-device authentication since it authenticates each sector
+ independently, i.e. there is no "root hash". It doesn't really
+ make sense for the same device-mapper target to support these two
+ very different cases; the same applies to fs-verity.
+
+:Q: Since verity files are immutable, why isn't the immutable bit set?
+:A: The existing "immutable" bit (FS_IMMUTABLE_FL) already has a
+ specific set of semantics which not only make the file contents
+ read-only, but also prevent the file from being deleted, renamed,
+ linked to, or having its owner or mode changed. These extra
+ properties are unwanted for fs-verity, so reusing the immutable
+ bit isn't appropriate.
+
+:Q: Why does the API use ioctls instead of setxattr() and getxattr()?
+:A: Abusing the xattr interface for basically arbitrary syscalls is
+ heavily frowned upon by most of the Linux filesystem developers.
+ An xattr should really just be an xattr on-disk, not an API to
+ e.g. magically trigger construction of a Merkle tree.
+
+:Q: Does fs-verity support remote filesystems?
+:A: Only ext4 and f2fs support is implemented currently, but in
+ principle any filesystem that can store per-file verity metadata
+ can support fs-verity, regardless of whether it's local or remote.
+ Some filesystems may have fewer options of where to store the
+ verity metadata; one possibility is to store it past the end of
+ the file and "hide" it from userspace by manipulating i_size. The
+ data verification functions provided by ``fs/verity/`` also assume
+ that the filesystem uses the Linux pagecache, but both local and
+ remote filesystems normally do so.
+
+:Q: Why is anything filesystem-specific at all? Shouldn't fs-verity
+ be implemented entirely at the VFS level?
+:A: There are many reasons why this is not possible or would be very
+ difficult, including the following:
+
+ - To prevent bypassing verification, pages must not be marked
+ Uptodate until they've been verified. Currently, each
+ filesystem is responsible for marking pages Uptodate via
+ ``->readpages()``. Therefore, currently it's not possible for
+ the VFS to do the verification on its own. Changing this would
+ require significant changes to the VFS and all filesystems.
+
+ - It would require defining a filesystem-independent way to store
+ the verity metadata. Extended attributes don't work for this
+ because (a) the Merkle tree may be gigabytes, but many
+ filesystems assume that all xattrs fit into a single 4K
+ filesystem block, and (b) ext4 and f2fs encryption doesn't
+ encrypt xattrs, yet the Merkle tree *must* be encrypted when the
+ file contents are, because it stores hashes of the plaintext
+ file contents.
+
+ So the verity metadata would have to be stored in an actual
+ file. Using a separate file would be very ugly, since the
+ metadata is fundamentally part of the file to be protected, and
+ it could cause problems where users could delete the real file
+ but not the metadata file or vice versa. On the other hand,
+ having it be in the same file would break applications unless
+ filesystems' notion of i_size were divorced from the VFS's,
+ which would be complex and require changes to all filesystems.
+
+ - It's desirable that FS_IOC_ENABLE_VERITY uses the filesystem's
+ transaction mechanism so that either the file ends up with
+ verity enabled, or no changes were made. Allowing intermediate
+ states to occur after a crash may cause problems.
diff --git a/Documentation/filesystems/index.rst b/Documentation/filesystems/index.rst
index 46d1b1b..d2f9d11 100644
--- a/Documentation/filesystems/index.rst
+++ b/Documentation/filesystems/index.rst
@@ -359,3 +359,4 @@
:maxdepth: 2
fscrypt
+ fsverity
diff --git a/Documentation/filesystems/overlayfs.txt b/Documentation/filesystems/overlayfs.txt
index d7dc9c8..99ee7dd 100644
--- a/Documentation/filesystems/overlayfs.txt
+++ b/Documentation/filesystems/overlayfs.txt
@@ -102,6 +102,29 @@
such as metadata and extended attributes are reported for the upper
directory only. These attributes of the lower directory are hidden.
+credentials
+-----------
+
+By default, all access to the upper, lower and work directories is the
+recorded mounter's MAC and DAC credentials. The incoming accesses are
+checked against the caller's credentials.
+
+In the case where caller MAC or DAC credentials do not overlap, a
+use case available in older versions of the driver, the
+override_creds mount flag can be turned off and help when the use
+pattern has caller with legitimate credentials where the mounter
+does not. Several unintended side effects will occur though. The
+caller without certain key capabilities or lower privilege will not
+always be able to delete files or directories, create nodes, or
+search some restricted directories. The ability to search and read
+a directory entry is spotty as a result of the cache mechanism not
+retesting the credentials because of the assumption, a privileged
+caller can fill cache, then a lower privilege can read the directory
+cache. The uneven security model where cache, upperdir and workdir
+are opened at privilege, but accessed without creating a form of
+privilege escalation, should only be used with strict understanding
+of the side effects and of the security policies.
+
whiteouts and opaque directories
--------------------------------
diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt
index 0d0ecc7..17aaa756 100644
--- a/Documentation/filesystems/proc.txt
+++ b/Documentation/filesystems/proc.txt
@@ -398,6 +398,8 @@
[stack] = the stack of the main process
[vdso] = the "virtual dynamic shared object",
the kernel system call handler
+ [anon:<name>] = an anonymous mapping that has been
+ named by userspace
or if empty, the mapping is anonymous.
@@ -427,6 +429,7 @@
Locked: 0 kB
THPeligible: 0
VmFlags: rd ex mr mw me dw
+Name: name from userspace
the first of these lines shows the same information as is displayed for the
mapping in /proc/PID/maps. The remaining lines show the size of the mapping
@@ -503,6 +506,9 @@
might change in future as well. So each consumer of these flags has to
follow each specific kernel version for the exact semantic.
+The "Name" field will only be present on a mapping that has been named by
+userspace, and will show the name passed in by userspace.
+
This file is only present if the CONFIG_MMU kernel configuration option is
enabled.
@@ -863,6 +869,7 @@
AnonPages: 861800 kB
Mapped: 280372 kB
Shmem: 644 kB
+KReclaimable: 168048 kB
Slab: 284364 kB
SReclaimable: 159856 kB
SUnreclaim: 124508 kB
@@ -930,6 +937,9 @@
ShmemHugePages: Memory used by shared memory (shmem) and tmpfs allocated
with huge pages
ShmemPmdMapped: Shared memory mapped into userspace with huge pages
+KReclaimable: Kernel allocations that the kernel will attempt to reclaim
+ under memory pressure. Includes SReclaimable (below), and other
+ direct allocations with a shrinker.
Slab: in-kernel data structures cache
SReclaimable: Part of Slab, that might be reclaimed, such as caches
SUnreclaim: Part of Slab, that cannot be reclaimed on memory pressure
diff --git a/Documentation/media/uapi/v4l/extended-controls.rst b/Documentation/media/uapi/v4l/extended-controls.rst
index 9f7312b..346168d 100644
--- a/Documentation/media/uapi/v4l/extended-controls.rst
+++ b/Documentation/media/uapi/v4l/extended-controls.rst
@@ -1141,6 +1141,12 @@
``V4L2_CID_MPEG_VIDEO_H264_8X8_TRANSFORM (boolean)``
Enable 8X8 transform for H264. Applicable to the H264 encoder.
+
+``V4L2_CID_MPEG_VIDEO_H264_CHROMA_QP_INDEX_OFFSET (integer)``
+ Specify the offset that should be added to the luma quantization
+ parameter to determine the chroma quantization parameter. Applicable
+ to the H264 encoder.
+
``V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB (integer)``
Cyclic intra macroblock refresh. This is the number of continuous
macroblocks refreshed every frame. Each frame a successive set of
diff --git a/Documentation/power/energy-model.txt b/Documentation/power/energy-model.txt
new file mode 100644
index 0000000..5a23c6f
--- /dev/null
+++ b/Documentation/power/energy-model.txt
@@ -0,0 +1,169 @@
+ ====================
+ Energy Model of CPUs
+ ====================
+
+1. Overview
+-----------
+
+The Energy Model (EM) framework serves as an interface between drivers knowing
+the power consumed by CPUs at various performance levels, and the kernel
+subsystems willing to use that information to make energy-aware decisions.
+
+The source of the information about the power consumed by CPUs can vary greatly
+from one platform to another. These power costs can be estimated using
+devicetree data in some cases. In others, the firmware will know better.
+Alternatively, userspace might be best positioned. And so on. In order to avoid
+each and every client subsystem to re-implement support for each and every
+possible source of information on its own, the EM framework intervenes as an
+abstraction layer which standardizes the format of power cost tables in the
+kernel, hence enabling to avoid redundant work.
+
+The figure below depicts an example of drivers (Arm-specific here, but the
+approach is applicable to any architecture) providing power costs to the EM
+framework, and interested clients reading the data from it.
+
+ +---------------+ +-----------------+ +---------------+
+ | Thermal (IPA) | | Scheduler (EAS) | | Other |
+ +---------------+ +-----------------+ +---------------+
+ | | em_pd_energy() |
+ | | em_cpu_get() |
+ +---------+ | +---------+
+ | | |
+ v v v
+ +---------------------+
+ | Energy Model |
+ | Framework |
+ +---------------------+
+ ^ ^ ^
+ | | | em_register_perf_domain()
+ +----------+ | +---------+
+ | | |
+ +---------------+ +---------------+ +--------------+
+ | cpufreq-dt | | arm_scmi | | Other |
+ +---------------+ +---------------+ +--------------+
+ ^ ^ ^
+ | | |
+ +--------------+ +---------------+ +--------------+
+ | Device Tree | | Firmware | | ? |
+ +--------------+ +---------------+ +--------------+
+
+The EM framework manages power cost tables per 'performance domain' in the
+system. A performance domain is a group of CPUs whose performance is scaled
+together. Performance domains generally have a 1-to-1 mapping with CPUFreq
+policies. All CPUs in a performance domain are required to have the same
+micro-architecture. CPUs in different performance domains can have different
+micro-architectures.
+
+
+2. Core APIs
+------------
+
+ 2.1 Config options
+
+CONFIG_ENERGY_MODEL must be enabled to use the EM framework.
+
+
+ 2.2 Registration of performance domains
+
+Drivers are expected to register performance domains into the EM framework by
+calling the following API:
+
+ int em_register_perf_domain(cpumask_t *span, unsigned int nr_states,
+ struct em_data_callback *cb);
+
+Drivers must specify the CPUs of the performance domains using the cpumask
+argument, and provide a callback function returning <frequency, power> tuples
+for each capacity state. The callback function provided by the driver is free
+to fetch data from any relevant location (DT, firmware, ...), and by any mean
+deemed necessary. See Section 3. for an example of driver implementing this
+callback, and kernel/power/energy_model.c for further documentation on this
+API.
+
+
+ 2.3 Accessing performance domains
+
+Subsystems interested in the energy model of a CPU can retrieve it using the
+em_cpu_get() API. The energy model tables are allocated once upon creation of
+the performance domains, and kept in memory untouched.
+
+The energy consumed by a performance domain can be estimated using the
+em_pd_energy() API. The estimation is performed assuming that the schedutil
+CPUfreq governor is in use.
+
+More details about the above APIs can be found in include/linux/energy_model.h.
+
+
+3. Example driver
+-----------------
+
+This section provides a simple example of a CPUFreq driver registering a
+performance domain in the Energy Model framework using the (fake) 'foo'
+protocol. The driver implements an est_power() function to be provided to the
+EM framework.
+
+ -> drivers/cpufreq/foo_cpufreq.c
+
+01 static int est_power(unsigned long *mW, unsigned long *KHz, int cpu)
+02 {
+03 long freq, power;
+04
+05 /* Use the 'foo' protocol to ceil the frequency */
+06 freq = foo_get_freq_ceil(cpu, *KHz);
+07 if (freq < 0);
+08 return freq;
+09
+10 /* Estimate the power cost for the CPU at the relevant freq. */
+11 power = foo_estimate_power(cpu, freq);
+12 if (power < 0);
+13 return power;
+14
+15 /* Return the values to the EM framework */
+16 *mW = power;
+17 *KHz = freq;
+18
+19 return 0;
+20 }
+21
+22 static int foo_cpufreq_init(struct cpufreq_policy *policy)
+23 {
+24 struct em_data_callback em_cb = EM_DATA_CB(est_power);
+25 int nr_opp, ret;
+26
+27 /* Do the actual CPUFreq init work ... */
+28 ret = do_foo_cpufreq_init(policy);
+29 if (ret)
+30 return ret;
+31
+32 /* Find the number of OPPs for this policy */
+33 nr_opp = foo_get_nr_opp(policy);
+34
+35 /* And register the new performance domain */
+36 em_register_perf_domain(policy->cpus, nr_opp, &em_cb);
+37
+38 return 0;
+39 }
+
+
+4. Support for legacy Energy Models (DEPRECATED)
+------------------------------------------------
+
+The Android kernel version 4.14 and before used a different type of EM for EAS,
+referred to as the 'legacy' EM. The legacy EM relies on the out-of-tree
+'sched-energy-costs' devicetree bindings to provide the kernel with power costs.
+The usage of such bindings in Android has now been DEPRECATED in favour of the
+mainline equivalents.
+
+The currently supported alternatives to populate the EM include:
+ - using a firmware-based solution such as Arm SCMI (supported in
+ drivers/cpufreq/scmi-cpufreq.c);
+ - using the 'dynamic-power-coefficient' devicetree binding together with
+ PM_OPP. See the of_dev_pm_opp_get_cpu_power() helper in PM_OPP, and the
+ reference implementation in drivers/cpufreq/cpufreq-dt.c.
+
+In order to ease the transition to the new EM format, Android 4.19 also provides
+a compatibility driver able to load a legacy EM from DT into the EM framework.
+*** Please note that THIS FEATURE WILL NOT BE AVAILABLE in future Android
+kernels, and as such it must be considered only as a temporary workaround. ***
+
+If you know what you're doing and still want to use this driver, you need to set
+CONFIG_LEGACY_ENERGY_MODEL_DT=y in your kernel configuration to enable it.
diff --git a/Documentation/power/pm_qos_interface.txt b/Documentation/power/pm_qos_interface.txt
index 19c5f7b..bbd543c 100644
--- a/Documentation/power/pm_qos_interface.txt
+++ b/Documentation/power/pm_qos_interface.txt
@@ -43,6 +43,17 @@
Clients of pm_qos need to save the returned handle for future use in other
pm_qos API functions.
+The handle is a pm_qos_request object. By default the request object sets the
+request type to PM_QOS_REQ_ALL_CORES, in which case, the PM QoS request
+applies to all cores. However, the driver can also specify a request type to
+be either of
+ PM_QOS_REQ_ALL_CORES,
+ PM_QOS_REQ_AFFINE_CORES,
+ PM_QOS_REQ_AFFINE_IRQ,
+
+Specify the cpumask when type is set to PM_QOS_REQ_AFFINE_CORES and specify
+the IRQ number with PM_QOS_REQ_AFFINE_IRQ.
+
void pm_qos_update_request(handle, new_target_value):
Will update the list element pointed to by the handle with the new target value
and recompute the new aggregated target, calling the notification tree if the
@@ -56,6 +67,13 @@
int pm_qos_request(param_class):
Returns the aggregated value for a given PM QoS class.
+int pm_qos_request_for_cpu(param_class, cpu):
+Returns the aggregated value for a given PM QoS class for the specified cpu.
+
+int pm_qos_request_for_cpumask(param_class, cpumask):
+Returns the aggregated value for a given PM QoS class for the specified
+cpumask.
+
int pm_qos_request_active(handle):
Returns if the request is still active, i.e. it has not been removed from a
PM QoS class constraints list.
diff --git a/Documentation/scheduler/sched-energy.txt b/Documentation/scheduler/sched-energy.txt
new file mode 100644
index 0000000..197d81f
--- /dev/null
+++ b/Documentation/scheduler/sched-energy.txt
@@ -0,0 +1,425 @@
+ =======================
+ Energy Aware Scheduling
+ =======================
+
+1. Introduction
+---------------
+
+Energy Aware Scheduling (or EAS) gives the scheduler the ability to predict
+the impact of its decisions on the energy consumed by CPUs. EAS relies on an
+Energy Model (EM) of the CPUs to select an energy efficient CPU for each task,
+with a minimal impact on throughput. This document aims at providing an
+introduction on how EAS works, what are the main design decisions behind it, and
+details what is needed to get it to run.
+
+Before going any further, please note that at the time of writing:
+
+ /!\ EAS does not support platforms with symmetric CPU topologies /!\
+
+EAS operates only on heterogeneous CPU topologies (such as Arm big.LITTLE)
+because this is where the potential for saving energy through scheduling is
+the highest.
+
+The actual EM used by EAS is _not_ maintained by the scheduler, but by a
+dedicated framework. For details about this framework and what it provides,
+please refer to its documentation (see Documentation/power/energy-model.txt).
+
+
+2. Background and Terminology
+-----------------------------
+
+To make it clear from the start:
+ - energy = [joule] (resource like a battery on powered devices)
+ - power = energy/time = [joule/second] = [watt]
+
+The goal of EAS is to minimize energy, while still getting the job done. That
+is, we want to maximize:
+
+ performance [inst/s]
+ --------------------
+ power [W]
+
+which is equivalent to minimizing:
+
+ energy [J]
+ -----------
+ instruction
+
+while still getting 'good' performance. It is essentially an alternative
+optimization objective to the current performance-only objective for the
+scheduler. This alternative considers two objectives: energy-efficiency and
+performance.
+
+The idea behind introducing an EM is to allow the scheduler to evaluate the
+implications of its decisions rather than blindly applying energy-saving
+techniques that may have positive effects only on some platforms. At the same
+time, the EM must be as simple as possible to minimize the scheduler latency
+impact.
+
+In short, EAS changes the way CFS tasks are assigned to CPUs. When it is time
+for the scheduler to decide where a task should run (during wake-up), the EM
+is used to break the tie between several good CPU candidates and pick the one
+that is predicted to yield the best energy consumption without harming the
+system's throughput. The predictions made by EAS rely on specific elements of
+knowledge about the platform's topology, which include the 'capacity' of CPUs,
+and their respective energy costs.
+
+
+3. Topology information
+-----------------------
+
+EAS (as well as the rest of the scheduler) uses the notion of 'capacity' to
+differentiate CPUs with different computing throughput. The 'capacity' of a CPU
+represents the amount of work it can absorb when running at its highest
+frequency compared to the most capable CPU of the system. Capacity values are
+normalized in a 1024 range, and are comparable with the utilization signals of
+tasks and CPUs computed by the Per-Entity Load Tracking (PELT) mechanism. Thanks
+to capacity and utilization values, EAS is able to estimate how big/busy a
+task/CPU is, and to take this into consideration when evaluating performance vs
+energy trade-offs. The capacity of CPUs is provided via arch-specific code
+through the arch_scale_cpu_capacity() callback.
+
+The rest of platform knowledge used by EAS is directly read from the Energy
+Model (EM) framework. The EM of a platform is composed of a power cost table
+per 'performance domain' in the system (see Documentation/power/energy-model.txt
+for futher details about performance domains).
+
+The scheduler manages references to the EM objects in the topology code when the
+scheduling domains are built, or re-built. For each root domain (rd), the
+scheduler maintains a singly linked list of all performance domains intersecting
+the current rd->span. Each node in the list contains a pointer to a struct
+em_perf_domain as provided by the EM framework.
+
+The lists are attached to the root domains in order to cope with exclusive
+cpuset configurations. Since the boundaries of exclusive cpusets do not
+necessarily match those of performance domains, the lists of different root
+domains can contain duplicate elements.
+
+Example 1.
+ Let us consider a platform with 12 CPUs, split in 3 performance domains
+ (pd0, pd4 and pd8), organized as follows:
+
+ CPUs: 0 1 2 3 4 5 6 7 8 9 10 11
+ PDs: |--pd0--|--pd4--|---pd8---|
+ RDs: |----rd1----|-----rd2-----|
+
+ Now, consider that userspace decided to split the system with two
+ exclusive cpusets, hence creating two independent root domains, each
+ containing 6 CPUs. The two root domains are denoted rd1 and rd2 in the
+ above figure. Since pd4 intersects with both rd1 and rd2, it will be
+ present in the linked list '->pd' attached to each of them:
+ * rd1->pd: pd0 -> pd4
+ * rd2->pd: pd4 -> pd8
+
+ Please note that the scheduler will create two duplicate list nodes for
+ pd4 (one for each list). However, both just hold a pointer to the same
+ shared data structure of the EM framework.
+
+Since the access to these lists can happen concurrently with hotplug and other
+things, they are protected by RCU, like the rest of topology structures
+manipulated by the scheduler.
+
+EAS also maintains a static key (sched_energy_present) which is enabled when at
+least one root domain meets all conditions for EAS to start. Those conditions
+are summarized in Section 6.
+
+
+4. Energy-Aware task placement
+------------------------------
+
+EAS overrides the CFS task wake-up balancing code. It uses the EM of the
+platform and the PELT signals to choose an energy-efficient target CPU during
+wake-up balance. When EAS is enabled, select_task_rq_fair() calls
+find_energy_efficient_cpu() to do the placement decision. This function looks
+for the CPU with the highest spare capacity (CPU capacity - CPU utilization) in
+each performance domain since it is the one which will allow us to keep the
+frequency the lowest. Then, the function checks if placing the task there could
+save energy compared to leaving it on prev_cpu, i.e. the CPU where the task ran
+in its previous activation.
+
+find_energy_efficient_cpu() uses compute_energy() to estimate what will be the
+energy consumed by the system if the waking task was migrated. compute_energy()
+looks at the current utilization landscape of the CPUs and adjusts it to
+'simulate' the task migration. The EM framework provides the em_pd_energy() API
+which computes the expected energy consumption of each performance domain for
+the given utilization landscape.
+
+An example of energy-optimized task placement decision is detailed below.
+
+Example 2.
+ Let us consider a (fake) platform with 2 independent performance domains
+ composed of two CPUs each. CPU0 and CPU1 are little CPUs; CPU2 and CPU3
+ are big.
+
+ The scheduler must decide where to place a task P whose util_avg = 200
+ and prev_cpu = 0.
+
+ The current utilization landscape of the CPUs is depicted on the graph
+ below. CPUs 0-3 have a util_avg of 400, 100, 600 and 500 respectively
+ Each performance domain has three Operating Performance Points (OPPs).
+ The CPU capacity and power cost associated with each OPP is listed in
+ the Energy Model table. The util_avg of P is shown on the figures
+ below as 'PP'.
+
+ CPU util.
+ 1024 - - - - - - - Energy Model
+ +-----------+-------------+
+ | Little | Big |
+ 768 ============= +-----+-----+------+------+
+ | Cap | Pwr | Cap | Pwr |
+ +-----+-----+------+------+
+ 512 =========== - ##- - - - - | 170 | 50 | 512 | 400 |
+ ## ## | 341 | 150 | 768 | 800 |
+ 341 -PP - - - - ## ## | 512 | 300 | 1024 | 1700 |
+ PP ## ## +-----+-----+------+------+
+ 170 -## - - - - ## ##
+ ## ## ## ##
+ ------------ -------------
+ CPU0 CPU1 CPU2 CPU3
+
+ Current OPP: ===== Other OPP: - - - util_avg (100 each): ##
+
+
+ find_energy_efficient_cpu() will first look for the CPUs with the
+ maximum spare capacity in the two performance domains. In this example,
+ CPU1 and CPU3. Then it will estimate the energy of the system if P was
+ placed on either of them, and check if that would save some energy
+ compared to leaving P on CPU0. EAS assumes that OPPs follow utilization
+ (which is coherent with the behaviour of the schedutil CPUFreq
+ governor, see Section 6. for more details on this topic).
+
+ Case 1. P is migrated to CPU1
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ 1024 - - - - - - -
+
+ Energy calculation:
+ 768 ============= * CPU0: 200 / 341 * 150 = 88
+ * CPU1: 300 / 341 * 150 = 131
+ * CPU2: 600 / 768 * 800 = 625
+ 512 - - - - - - - ##- - - - - * CPU3: 500 / 768 * 800 = 520
+ ## ## => total_energy = 1364
+ 341 =========== ## ##
+ PP ## ##
+ 170 -## - - PP- ## ##
+ ## ## ## ##
+ ------------ -------------
+ CPU0 CPU1 CPU2 CPU3
+
+
+ Case 2. P is migrated to CPU3
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ 1024 - - - - - - -
+
+ Energy calculation:
+ 768 ============= * CPU0: 200 / 341 * 150 = 88
+ * CPU1: 100 / 341 * 150 = 43
+ PP * CPU2: 600 / 768 * 800 = 625
+ 512 - - - - - - - ##- - -PP - * CPU3: 700 / 768 * 800 = 729
+ ## ## => total_energy = 1485
+ 341 =========== ## ##
+ ## ##
+ 170 -## - - - - ## ##
+ ## ## ## ##
+ ------------ -------------
+ CPU0 CPU1 CPU2 CPU3
+
+
+ Case 3. P stays on prev_cpu / CPU 0
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ 1024 - - - - - - -
+
+ Energy calculation:
+ 768 ============= * CPU0: 400 / 512 * 300 = 234
+ * CPU1: 100 / 512 * 300 = 58
+ * CPU2: 600 / 768 * 800 = 625
+ 512 =========== - ##- - - - - * CPU3: 500 / 768 * 800 = 520
+ ## ## => total_energy = 1437
+ 341 -PP - - - - ## ##
+ PP ## ##
+ 170 -## - - - - ## ##
+ ## ## ## ##
+ ------------ -------------
+ CPU0 CPU1 CPU2 CPU3
+
+
+ From these calculations, the Case 1 has the lowest total energy. So CPU 1
+ is be the best candidate from an energy-efficiency standpoint.
+
+Big CPUs are generally more power hungry than the little ones and are thus used
+mainly when a task doesn't fit the littles. However, little CPUs aren't always
+necessarily more energy-efficient than big CPUs. For some systems, the high OPPs
+of the little CPUs can be less energy-efficient than the lowest OPPs of the
+bigs, for example. So, if the little CPUs happen to have enough utilization at
+a specific point in time, a small task waking up at that moment could be better
+of executing on the big side in order to save energy, even though it would fit
+on the little side.
+
+And even in the case where all OPPs of the big CPUs are less energy-efficient
+than those of the little, using the big CPUs for a small task might still, under
+specific conditions, save energy. Indeed, placing a task on a little CPU can
+result in raising the OPP of the entire performance domain, and that will
+increase the cost of the tasks already running there. If the waking task is
+placed on a big CPU, its own execution cost might be higher than if it was
+running on a little, but it won't impact the other tasks of the little CPUs
+which will keep running at a lower OPP. So, when considering the total energy
+consumed by CPUs, the extra cost of running that one task on a big core can be
+smaller than the cost of raising the OPP on the little CPUs for all the other
+tasks.
+
+The examples above would be nearly impossible to get right in a generic way, and
+for all platforms, without knowing the cost of running at different OPPs on all
+CPUs of the system. Thanks to its EM-based design, EAS should cope with them
+correctly without too many troubles. However, in order to ensure a minimal
+impact on throughput for high-utilization scenarios, EAS also implements another
+mechanism called 'over-utilization'.
+
+
+5. Over-utilization
+-------------------
+
+From a general standpoint, the use-cases where EAS can help the most are those
+involving a light/medium CPU utilization. Whenever long CPU-bound tasks are
+being run, they will require all of the available CPU capacity, and there isn't
+much that can be done by the scheduler to save energy without severly harming
+throughput. In order to avoid hurting performance with EAS, CPUs are flagged as
+'over-utilized' as soon as they are used at more than 80% of their compute
+capacity. As long as no CPUs are over-utilized in a root domain, load balancing
+is disabled and EAS overridess the wake-up balancing code. EAS is likely to load
+the most energy efficient CPUs of the system more than the others if that can be
+done without harming throughput. So, the load-balancer is disabled to prevent
+it from breaking the energy-efficient task placement found by EAS. It is safe to
+do so when the system isn't overutilized since being below the 80% tipping point
+implies that:
+
+ a. there is some idle time on all CPUs, so the utilization signals used by
+ EAS are likely to accurately represent the 'size' of the various tasks
+ in the system;
+ b. all tasks should already be provided with enough CPU capacity,
+ regardless of their nice values;
+ c. since there is spare capacity all tasks must be blocking/sleeping
+ regularly and balancing at wake-up is sufficient.
+
+As soon as one CPU goes above the 80% tipping point, at least one of the three
+assumptions above becomes incorrect. In this scenario, the 'overutilized' flag
+is raised for the entire root domain, EAS is disabled, and the load-balancer is
+re-enabled. By doing so, the scheduler falls back onto load-based algorithms for
+wake-up and load balance under CPU-bound conditions. This provides a better
+respect of the nice values of tasks.
+
+Since the notion of overutilization largely relies on detecting whether or not
+there is some idle time in the system, the CPU capacity 'stolen' by higher
+(than CFS) scheduling classes (as well as IRQ) must be taken into account. As
+such, the detection of overutilization accounts for the capacity used not only
+by CFS tasks, but also by the other scheduling classes and IRQ.
+
+
+6. Dependencies and requirements for EAS
+----------------------------------------
+
+Energy Aware Scheduling depends on the CPUs of the system having specific
+hardware properties and on other features of the kernel being enabled. This
+section lists these dependencies and provides hints as to how they can be met.
+
+
+ 6.1 - Asymmetric CPU topology
+
+As mentioned in the introduction, EAS is only supported on platforms with
+asymmetric CPU topologies for now. This requirement is checked at run-time by
+looking for the presence of the SD_ASYM_CPUCAPACITY flag when the scheduling
+domains are built.
+
+The flag is set/cleared automatically by the scheduler topology code whenever
+there are CPUs with different capacities in a root domain. The capacities of
+CPUs are provided by arch-specific code through the arch_scale_cpu_capacity()
+callback. As an example, arm and arm64 share an implementation of this callback
+which uses a combination of CPUFreq data and device-tree bindings to compute the
+capacity of CPUs (see drivers/base/arch_topology.c for more details).
+
+So, in order to use EAS on your platform your architecture must implement the
+arch_scale_cpu_capacity() callback, and some of the CPUs must have a lower
+capacity than others.
+
+Please note that EAS is not fundamentally incompatible with SMP, but no
+significant savings on SMP platforms have been observed yet. This restriction
+could be amended in the future if proven otherwise.
+
+
+ 6.2 - Energy Model presence
+
+EAS uses the EM of a platform to estimate the impact of scheduling decisions on
+energy. So, your platform must provide power cost tables to the EM framework in
+order to make EAS start. To do so, please refer to documentation of the
+independent EM framework in Documentation/power/energy-model.txt.
+
+Please also note that the scheduling domains need to be re-built after the
+EM has been registered in order to start EAS.
+
+
+ 6.3 - Energy Model complexity
+
+The task wake-up path is very latency-sensitive. When the EM of a platform is
+too complex (too many CPUs, too many performance domains, too many performance
+states, ...), the cost of using it in the wake-up path can become prohibitive.
+The energy-aware wake-up algorithm has a complexity of:
+
+ C = Nd * (Nc + Ns)
+
+with: Nd the number of performance domains; Nc the number of CPUs; and Ns the
+total number of OPPs (ex: for two perf. domains with 4 OPPs each, Ns = 8).
+
+A complexity check is performed at the root domain level, when scheduling
+domains are built. EAS will not start on a root domain if its C happens to be
+higher than the completely arbitrary EM_MAX_COMPLEXITY threshold (2048 at the
+time of writing).
+
+If you really want to use EAS but the complexity of your platform's Energy
+Model is too high to be used with a single root domain, you're left with only
+two possible options:
+
+ 1. split your system into separate, smaller, root domains using exclusive
+ cpusets and enable EAS locally on each of them. This option has the
+ benefit to work out of the box but the drawback of preventing load
+ balance between root domains, which can result in an unbalanced system
+ overall;
+ 2. submit patches to reduce the complexity of the EAS wake-up algorithm,
+ hence enabling it to cope with larger EMs in reasonable time.
+
+
+ 6.4 - Schedutil governor
+
+EAS tries to predict at which OPP will the CPUs be running in the close future
+in order to estimate their energy consumption. To do so, it is assumed that OPPs
+of CPUs follow their utilization.
+
+Although it is very difficult to provide hard guarantees regarding the accuracy
+of this assumption in practice (because the hardware might not do what it is
+told to do, for example), schedutil as opposed to other CPUFreq governors at
+least _requests_ frequencies calculated using the utilization signals.
+Consequently, the only sane governor to use together with EAS is schedutil,
+because it is the only one providing some degree of consistency between
+frequency requests and energy predictions.
+
+Using EAS with any other governor than schedutil is not supported.
+
+
+ 6.5 Scale-invariant utilization signals
+
+In order to make accurate prediction across CPUs and for all performance
+states, EAS needs frequency-invariant and CPU-invariant PELT signals. These can
+be obtained using the architecture-defined arch_scale{cpu,freq}_capacity()
+callbacks.
+
+Using EAS on a platform that doesn't implement these two callbacks is not
+supported.
+
+
+ 6.6 Multithreading (SMT)
+
+EAS in its current form is SMT unaware and is not able to leverage
+multithreaded hardware to save energy. EAS considers threads as independent
+CPUs, which can actually be counter-productive for both performance and energy.
+
+EAS on SMT is not supported.
diff --git a/Documentation/scheduler/sched-tune.txt b/Documentation/scheduler/sched-tune.txt
new file mode 100644
index 0000000..be72870
--- /dev/null
+++ b/Documentation/scheduler/sched-tune.txt
@@ -0,0 +1,388 @@
+ Central, scheduler-driven, power-performance control
+ (EXPERIMENTAL)
+
+Abstract
+========
+
+The topic of a single simple power-performance tunable, that is wholly
+scheduler centric, and has well defined and predictable properties has come up
+on several occasions in the past [1,2]. With techniques such as a scheduler
+driven DVFS [3], we now have a good framework for implementing such a tunable.
+This document describes the overall ideas behind its design and implementation.
+
+
+Table of Contents
+=================
+
+1. Motivation
+2. Introduction
+3. Signal Boosting Strategy
+4. OPP selection using boosted CPU utilization
+5. Per task group boosting
+6. Per-task wakeup-placement-strategy Selection
+7. Question and Answers
+ - What about "auto" mode?
+ - What about boosting on a congested system?
+ - How CPUs are boosted when we have tasks with multiple boost values?
+8. References
+
+
+1. Motivation
+=============
+
+Schedutil [3] is a utilization-driven cpufreq governor which allows the
+scheduler to select the optimal DVFS operating point (OPP) for running a task
+allocated to a CPU.
+
+However, sometimes it may be desired to intentionally boost the performance of
+a workload even if that could imply a reasonable increase in energy
+consumption. For example, in order to reduce the response time of a task, we
+may want to run the task at a higher OPP than the one that is actually required
+by it's CPU bandwidth demand.
+
+This last requirement is especially important if we consider that one of the
+main goals of the utilization-driven governor component is to replace all
+currently available CPUFreq policies. Since schedutil is event-based, as
+opposed to the sampling driven governors we currently have, they are already
+more responsive at selecting the optimal OPP to run tasks allocated to a CPU.
+However, just tracking the actual task utilization may not be enough from a
+performance standpoint. For example, it is not possible to get behaviors
+similar to those provided by the "performance" and "interactive" CPUFreq
+governors.
+
+This document describes an implementation of a tunable, stacked on top of the
+utilization-driven governor which extends its functionality to support task
+performance boosting.
+
+By "performance boosting" we mean the reduction of the time required to
+complete a task activation, i.e. the time elapsed from a task wakeup to its
+next deactivation (e.g. because it goes back to sleep or it terminates). For
+example, if we consider a simple periodic task which executes the same workload
+for 5[s] every 20[s] while running at a certain OPP, a boosted execution of
+that task must complete each of its activations in less than 5[s].
+
+The rest of this document introduces in more details the proposed solution
+which has been named SchedTune.
+
+
+2. Introduction
+===============
+
+SchedTune exposes a simple user-space interface provided through a new
+CGroup controller 'stune' which provides two power-performance tunables
+per group:
+
+ /<stune cgroup mount point>/schedtune.prefer_idle
+ /<stune cgroup mount point>/schedtune.boost
+
+The CGroup implementation permits arbitrary user-space defined task
+classification to tune the scheduler for different goals depending on the
+specific nature of the task, e.g. background vs interactive vs low-priority.
+
+More details are given in section 5.
+
+2.1 Boosting
+============
+
+The boost value is expressed as an integer in the range [0..100].
+
+A value of 0 (default) configures the CFS scheduler for maximum energy
+efficiency. This means that schedutil runs the tasks at the minimum OPP
+required to satisfy their workload demand.
+
+A value of 100 configures scheduler for maximum performance, which translates
+to the selection of the maximum OPP on that CPU.
+
+The range between 0 and 100 can be set to satisfy other scenarios suitably. For
+example to satisfy interactive response or depending on other system events
+(battery level etc).
+
+The overall design of the SchedTune module is built on top of "Per-Entity Load
+Tracking" (PELT) signals and schedutil by introducing a bias on the OPP
+selection.
+
+Each time a task is allocated on a CPU, cpufreq is given the opportunity to tune
+the operating frequency of that CPU to better match the workload demand. The
+selection of the actual OPP being activated is influenced by the boost value
+for the task CGroup.
+
+This simple biasing approach leverages existing frameworks, which means minimal
+modifications to the scheduler, and yet it allows to achieve a range of
+different behaviours all from a single simple tunable knob.
+
+In EAS schedulers, we use boosted task and CPU utilization for energy
+calculation and energy-aware task placement.
+
+2.2 prefer_idle
+===============
+
+This is a flag which indicates to the scheduler that userspace would like
+the scheduler to focus on energy or to focus on performance.
+
+A value of 0 (default) signals to the CFS scheduler that tasks in this group
+can be placed according to the energy-aware wakeup strategy.
+
+A value of 1 signals to the CFS scheduler that tasks in this group should be
+placed to minimise wakeup latency.
+
+Android platforms typically use this flag for application tasks which the
+user is currently interacting with.
+
+
+3. Signal Boosting Strategy
+===========================
+
+The whole PELT machinery works based on the value of a few load tracking signals
+which basically track the CPU bandwidth requirements for tasks and the capacity
+of CPUs. The basic idea behind the SchedTune knob is to artificially inflate
+some of these load tracking signals to make a task or RQ appears more demanding
+that it actually is.
+
+Which signals have to be inflated depends on the specific "consumer". However,
+independently from the specific (signal, consumer) pair, it is important to
+define a simple and possibly consistent strategy for the concept of boosting a
+signal.
+
+A boosting strategy defines how the "abstract" user-space defined
+sched_cfs_boost value is translated into an internal "margin" value to be added
+to a signal to get its inflated value:
+
+ margin := boosting_strategy(sched_cfs_boost, signal)
+ boosted_signal := signal + margin
+
+The boosting strategy currently implemented in SchedTune is called 'Signal
+Proportional Compensation' (SPC). With SPC, the sched_cfs_boost value is used to
+compute a margin which is proportional to the complement of the original signal.
+When a signal has a maximum possible value, its complement is defined as
+the delta from the actual value and its possible maximum.
+
+Since the tunable implementation uses signals which have SCHED_CAPACITY_SCALE as
+the maximum possible value, the margin becomes:
+
+ margin := sched_cfs_boost * (SCHED_CAPACITY_SCALE - signal)
+
+Using this boosting strategy:
+- a 100% sched_cfs_boost means that the signal is scaled to the maximum value
+- each value in the range of sched_cfs_boost effectively inflates the signal in
+ question by a quantity which is proportional to the maximum value.
+
+For example, by applying the SPC boosting strategy to the selection of the OPP
+to run a task it is possible to achieve these behaviors:
+
+- 0% boosting: run the task at the minimum OPP required by its workload
+- 100% boosting: run the task at the maximum OPP available for the CPU
+- 50% boosting: run at the half-way OPP between minimum and maximum
+
+Which means that, at 50% boosting, a task will be scheduled to run at half of
+the maximum theoretically achievable performance on the specific target
+platform.
+
+A graphical representation of an SPC boosted signal is represented in the
+following figure where:
+ a) "-" represents the original signal
+ b) "b" represents a 50% boosted signal
+ c) "p" represents a 100% boosted signal
+
+
+ ^
+ | SCHED_CAPACITY_SCALE
+ +-----------------------------------------------------------------+
+ |pppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
+ |
+ | boosted_signal
+ | bbbbbbbbbbbbbbbbbbbbbbbb
+ |
+ | original signal
+ | bbbbbbbbbbbbbbbbbbbbbbbb+----------------------+
+ | |
+ |bbbbbbbbbbbbbbbbbb |
+ | |
+ | |
+ | |
+ | +-----------------------+
+ | |
+ | |
+ | |
+ |------------------+
+ |
+ |
+ +----------------------------------------------------------------------->
+
+The plot above shows a ramped load signal (titled 'original_signal') and it's
+boosted equivalent. For each step of the original signal the boosted signal
+corresponding to a 50% boost is midway from the original signal and the upper
+bound. Boosting by 100% generates a boosted signal which is always saturated to
+the upper bound.
+
+
+4. OPP selection using boosted CPU utilization
+==============================================
+
+It is worth calling out that the implementation does not introduce any new load
+signals. Instead, it provides an API to tune existing signals. This tuning is
+done on demand and only in scheduler code paths where it is sensible to do so.
+The new API calls are defined to return either the default signal or a boosted
+one, depending on the value of sched_cfs_boost. This is a clean an non invasive
+modification of the existing existing code paths.
+
+The signal representing a CPU's utilization is boosted according to the
+previously described SPC boosting strategy. To schedutil, this allows a CPU
+(ie CFS run-queue) to appear more used then it actually is.
+
+Thus, with the sched_cfs_boost enabled we have the following main functions to
+get the current utilization of a CPU:
+
+ cpu_util()
+ stune_util()
+
+The new stune_util() is similar to the first but returns a boosted
+utilization signal which is a function of the sched_cfs_boost value.
+
+This function is used in the CFS scheduler code paths where schedutil needs to
+decide the OPP to run a CPU at. For example, this allows selecting the highest
+OPP for a CPU which has the boost value set to 100%.
+
+
+5. Per task group boosting
+==========================
+
+On battery powered devices there usually are many background services which are
+long running and need energy efficient scheduling. On the other hand, some
+applications are more performance sensitive and require an interactive
+response and/or maximum performance, regardless of the energy cost.
+
+To better service such scenarios, the SchedTune implementation has an extension
+that provides a more fine grained boosting interface.
+
+A new CGroup controller, namely "schedtune", can be enabled which allows to
+defined and configure task groups with different boosting values.
+Tasks that require special performance can be put into separate CGroups.
+The value of the boost associated with the tasks in this group can be specified
+using a single knob exposed by the CGroup controller:
+
+ schedtune.boost
+
+This knob allows the definition of a boost value that is to be used for
+SPC boosting of all tasks attached to this group.
+
+The current schedtune controller implementation is really simple and has these
+main characteristics:
+
+ 1) It is only possible to create 1 level depth hierarchies
+
+ The root control groups define the system-wide boost value to be applied
+ by default to all tasks. Its direct subgroups are named "boost groups" and
+ they define the boost value for specific set of tasks.
+ Further nested subgroups are not allowed since they do not have a sensible
+ meaning from a user-space standpoint.
+
+ 2) It is possible to define only a limited number of "boost groups"
+
+ This number is defined at compile time and by default configured to 16.
+ This is a design decision motivated by two main reasons:
+ a) In a real system we do not expect utilization scenarios with more than
+ a few boost groups. For example, a reasonable collection of groups could
+ be just "background", "interactive" and "performance".
+ b) It simplifies the implementation considerably, especially for the code
+ which has to compute the per CPU boosting once there are multiple
+ RUNNABLE tasks with different boost values.
+
+Such a simple design should allow servicing the main utilization scenarios
+identified so far. It provides a simple interface which can be used to manage
+the power-performance of all tasks or only selected tasks.
+Moreover, this interface can be easily integrated by user-space run-times (e.g.
+Android, ChromeOS) to implement a QoS solution for task boosting based on tasks
+classification, which has been a long standing requirement.
+
+Setup and usage
+---------------
+
+0. Use a kernel with CONFIG_SCHED_TUNE support enabled
+
+1. Check that the "schedtune" CGroup controller is available:
+
+ root@linaro-nano:~# cat /proc/cgroups
+ #subsys_name hierarchy num_cgroups enabled
+ cpuset 0 1 1
+ cpu 0 1 1
+ schedtune 0 1 1
+
+2. Mount a tmpfs to create the CGroups mount point (Optional)
+
+ root@linaro-nano:~# sudo mount -t tmpfs cgroups /sys/fs/cgroup
+
+3. Mount the "schedtune" controller
+
+ root@linaro-nano:~# mkdir /sys/fs/cgroup/stune
+ root@linaro-nano:~# sudo mount -t cgroup -o schedtune stune /sys/fs/cgroup/stune
+
+4. Create task groups and configure their specific boost value (Optional)
+
+ For example here we create a "performance" boost group configure to boost
+ all its tasks to 100%
+
+ root@linaro-nano:~# mkdir /sys/fs/cgroup/stune/performance
+ root@linaro-nano:~# echo 100 > /sys/fs/cgroup/stune/performance/schedtune.boost
+
+5. Move tasks into the boost group
+
+ For example, the following moves the tasks with PID $TASKPID (and all its
+ threads) into the "performance" boost group.
+
+ root@linaro-nano:~# echo "TASKPID > /sys/fs/cgroup/stune/performance/cgroup.procs
+
+This simple configuration allows only the threads of the $TASKPID task to run,
+when needed, at the highest OPP in the most capable CPU of the system.
+
+
+6. Per-task wakeup-placement-strategy Selection
+===============================================
+
+Many devices have a number of CFS tasks in use which require an absolute
+minimum wakeup latency, and many tasks for which wakeup latency is not
+important.
+
+For touch-driven environments, removing additional wakeup latency can be
+critical.
+
+When you use the Schedtume CGroup controller, you have access to a second
+parameter which allows a group to be marked such that energy_aware task
+placement is bypassed for tasks belonging to that group.
+
+prefer_idle=0 (default - use energy-aware task placement if available)
+prefer_idle=1 (never use energy-aware task placement for these tasks)
+
+Since the regular wakeup task placement algorithm in CFS is biased for
+performance, this has the effect of restoring minimum wakeup latency
+for the desired tasks whilst still allowing energy-aware wakeup placement
+to save energy for other tasks.
+
+
+7. Question and Answers
+=======================
+
+What about "auto" mode?
+-----------------------
+
+The 'auto' mode as described in [5] can be implemented by interfacing SchedTune
+with some suitable user-space element. This element could use the exposed
+system-wide or cgroup based interface.
+
+How are multiple groups of tasks with different boost values managed?
+---------------------------------------------------------------------
+
+The current SchedTune implementation keeps track of the boosted RUNNABLE tasks
+on a CPU. The CPU utilization seen by schedutil (and used to select an
+appropriate OPP) is boosted with a value which is the maximum of the boost
+values of the currently RUNNABLE tasks in its RQ.
+
+This allows cpufreq to boost a CPU only while there are boosted tasks ready
+to run and switch back to the energy efficient mode as soon as the last boosted
+task is dequeued.
+
+
+8. References
+=============
+[1] http://lwn.net/Articles/552889
+[2] http://lkml.org/lkml/2012/5/18/91
+[3] https://lkml.org/lkml/2016/3/29/1041
diff --git a/Documentation/sound/designs/compress-offload.rst b/Documentation/sound/designs/compress-offload.rst
index ad4bfbd..a29e4e6 100644
--- a/Documentation/sound/designs/compress-offload.rst
+++ b/Documentation/sound/designs/compress-offload.rst
@@ -183,6 +183,11 @@
EOF is reached and now DSP can start skipping padding delay. Also next write
data would belong to next track
+- set_next_track_param
+This routine is called to send to DSP codec specific data of subsequent track
+in gapless before first write.
+
+
Sequence flow for gapless would be:
- Open
- Get caps / codec caps
@@ -194,6 +199,7 @@
- Indicate next track data by sending set_next_track
- Set metadata of the next track
- then call partial_drain to flush most of buffer in DSP
+- set codec specific data of subsequent track
- Fill data of the next track
- DSP switches to second track
diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt
index 37a6795..36bee79 100644
--- a/Documentation/sysctl/kernel.txt
+++ b/Documentation/sysctl/kernel.txt
@@ -78,6 +78,7 @@
- reboot-cmd [ SPARC only ]
- rtsig-max
- rtsig-nr
+- sched_energy_aware
- seccomp/ ==> Documentation/userspace-api/seccomp_filter.rst
- sem
- sem_next_id [ sysv ipc ]
@@ -872,6 +873,17 @@
==============================================================
+sched_energy_aware:
+
+Enables/disables Energy Aware Scheduling (EAS). EAS starts
+automatically on platforms where it can run (that is,
+platforms with asymmetric CPU topologies and having an Energy
+Model available). If your platform happens to meet the
+requirements for EAS but you do not want to use it, change
+this value to 0.
+
+==============================================================
+
sched_schedstats:
Enables/disables scheduler statistics. Enabling this feature
diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt
index 7d73882..a48baf2 100644
--- a/Documentation/sysctl/vm.txt
+++ b/Documentation/sysctl/vm.txt
@@ -31,6 +31,7 @@
- dirty_writeback_centisecs
- drop_caches
- extfrag_threshold
+- extra_free_kbytes
- hugetlb_shm_group
- laptop_mode
- legacy_va_layout
@@ -274,6 +275,21 @@
==============================================================
+extra_free_kbytes
+
+This parameter tells the VM to keep extra free memory between the threshold
+where background reclaim (kswapd) kicks in, and the threshold where direct
+reclaim (by allocating processes) kicks in.
+
+This is useful for workloads that require low latency memory allocations
+and have a bounded burstiness in memory allocations, for example a
+realtime application that receives and transmits network traffic
+(causing in-kernel memory allocations) with a maximum total message burst
+size of 200MB may need 200MB of extra free memory to avoid direct reclaim
+related latencies.
+
+==============================================================
+
hugetlb_shm_group
hugetlb_shm_group contains group id that is allowed to create SysV
diff --git a/Documentation/usb/raw-gadget.rst b/Documentation/usb/raw-gadget.rst
new file mode 100644
index 0000000..68d879a
--- /dev/null
+++ b/Documentation/usb/raw-gadget.rst
@@ -0,0 +1,84 @@
+==============
+USB Raw Gadget
+==============
+
+USB Raw Gadget is a kernel module that provides a userspace interface for
+the USB Gadget subsystem. Essentially it allows to emulate USB devices
+from userspace. Enabled with CONFIG_USB_RAW_GADGET. Raw Gadget is
+currently a strictly debugging feature and shouldn't be used in
+production, use GadgetFS instead.
+
+Comparison to GadgetFS
+~~~~~~~~~~~~~~~~~~~~~~
+
+Raw Gadget is similar to GadgetFS, but provides a more low-level and
+direct access to the USB Gadget layer for the userspace. The key
+differences are:
+
+1. Every USB request is passed to the userspace to get a response, while
+ GadgetFS responds to some USB requests internally based on the provided
+ descriptors. However note, that the UDC driver might respond to some
+ requests on its own and never forward them to the Gadget layer.
+
+2. GadgetFS performs some sanity checks on the provided USB descriptors,
+ while Raw Gadget allows you to provide arbitrary data as responses to
+ USB requests.
+
+3. Raw Gadget provides a way to select a UDC device/driver to bind to,
+ while GadgetFS currently binds to the first available UDC.
+
+4. Raw Gadget explicitly exposes information about endpoints addresses and
+ capabilities allowing a user to write UDC-agnostic gadgets.
+
+5. Raw Gadget has ioctl-based interface instead of a filesystem-based one.
+
+Userspace interface
+~~~~~~~~~~~~~~~~~~~
+
+To create a Raw Gadget instance open /dev/raw-gadget. Multiple raw-gadget
+instances (bound to different UDCs) can be used at the same time. The
+interaction with the opened file happens through the ioctl() calls, see
+comments in include/uapi/linux/usb/raw_gadget.h for details.
+
+The typical usage of Raw Gadget looks like:
+
+1. Open Raw Gadget instance via /dev/raw-gadget.
+2. Initialize the instance via USB_RAW_IOCTL_INIT.
+3. Launch the instance with USB_RAW_IOCTL_RUN.
+4. In a loop issue USB_RAW_IOCTL_EVENT_FETCH calls to receive events from
+ Raw Gadget and react to those depending on what kind of USB device
+ needs to be emulated.
+
+Note, that some UDC drivers have fixed addresses assigned to endpoints, and
+therefore arbitrary endpoint addresses can't be used in the descriptors.
+Nevertheles, Raw Gadget provides a UDC-agnostic way to write USB gadgets.
+Once a USB_RAW_EVENT_CONNECT event is received via USB_RAW_IOCTL_EVENT_FETCH,
+the USB_RAW_IOCTL_EPS_INFO ioctl can be used to find out information about
+endpoints that the UDC driver has. Based on that information, the user must
+chose UDC endpoints that will be used for the gadget being emulated, and
+properly assign addresses in endpoint descriptors.
+
+You can find usage examples (along with a test suite) here:
+
+https://github.com/xairy/raw-gadget
+
+Internal details
+~~~~~~~~~~~~~~~~
+
+Currently every endpoint read/write ioctl submits a USB request and waits until
+its completion. This is the desired mode for coverage-guided fuzzing (as we'd
+like all USB request processing happen during the lifetime of a syscall),
+and must be kept in the implementation. (This might be slow for real world
+applications, thus the O_NONBLOCK improvement suggestion below.)
+
+Potential future improvements
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+- Report more events (suspend, resume, etc.) through USB_RAW_IOCTL_EVENT_FETCH.
+
+- Support O_NONBLOCK I/O.
+
+- Support USB 3 features (accept SS endpoint companion descriptor when
+ enabling endpoints; allow providing stream_id for bulk transfers).
+
+- Support ISO transfer features (expose frame_number for completed requests).
diff --git a/MAINTAINERS b/MAINTAINERS
index 1061db6..6cb2407 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3901,6 +3901,7 @@
F: drivers/crypto/
F: include/crypto/
F: include/linux/crypto*
+F: lib/crypto/
CRYPTOGRAPHIC RANDOM NUMBER GENERATOR
M: Neil Horman <nhorman@tuxdriver.com>
@@ -6008,6 +6009,7 @@
S: Supported
F: fs/crypto/
F: include/linux/fscrypt*.h
+F: include/uapi/linux/fscrypt.h
F: Documentation/filesystems/fscrypt.rst
FSI-ATTACHED I2C DRIVER
@@ -6026,6 +6028,18 @@
F: fs/notify/
F: include/linux/fsnotify*.h
+FSVERITY: READ-ONLY FILE-BASED AUTHENTICITY PROTECTION
+M: Eric Biggers <ebiggers@kernel.org>
+M: Theodore Y. Ts'o <tytso@mit.edu>
+L: linux-fscrypt@vger.kernel.org
+Q: https://patchwork.kernel.org/project/linux-fscrypt/list/
+T: git git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt.git fsverity
+S: Supported
+F: fs/verity/
+F: include/linux/fsverity.h
+F: include/uapi/linux/fsverity.h
+F: Documentation/filesystems/fsverity.rst
+
FUJITSU LAPTOP EXTRAS
M: Jonathan Woithe <jwoithe@just42.net>
L: platform-driver-x86@vger.kernel.org
@@ -10294,6 +10308,12 @@
F: Documentation/scsi/NinjaSCSI.txt
F: drivers/scsi/nsp32*
+NINTENDO HID DRIVER
+M: Daniel J. Ogorchock <djogorchock@gmail.com>
+L: linux-input@vger.kernel.org
+S: Maintained
+F: drivers/hid/hid-nintendo*
+
NIOS2 ARCHITECTURE
M: Ley Foon Tan <lftan@altera.com>
L: nios2-dev@lists.rocketboards.org (moderated for non-subscribers)
@@ -15857,6 +15877,14 @@
S: Maintained
F: drivers/gpio/gpio-ws16c48.c
+WIREGUARD SECURE NETWORK TUNNEL
+M: Jason A. Donenfeld <Jason@zx2c4.com>
+S: Maintained
+F: drivers/net/wireguard/
+F: tools/testing/selftests/wireguard/
+L: wireguard@lists.zx2c4.com
+L: netdev@vger.kernel.org
+
WISTRON LAPTOP BUTTON DRIVER
M: Miloslav Trmac <mitr@volny.cz>
S: Maintained
diff --git a/Makefile b/Makefile
index 77dd62a..fcbf047 100644
--- a/Makefile
+++ b/Makefile
@@ -622,6 +622,16 @@
CC_FLAGS_FTRACE := -pg
endif
+# Make toolchain changes before including arch/$(SRCARCH)/Makefile to ensure
+# ar/cc/ld-* macros return correct values.
+ifdef CONFIG_LTO_CLANG
+# use llvm-ar for building symbol tables from IR files, and llvm-nm instead
+# of objdump for processing symbol versions and exports
+LLVM_AR := llvm-ar
+LLVM_NM := llvm-nm
+export LLVM_AR LLVM_NM
+endif
+
# The arch Makefile can set ARCH_{CPP,A,C}FLAGS to override the default
# values of the respective KBUILD_* variables
ARCH_CPPFLAGS :=
@@ -682,6 +692,12 @@
KBUILD_CFLAGS += $(call cc-option,--param=allow-store-data-races=0)
KBUILD_CFLAGS += $(call cc-option,-fno-allow-store-data-races)
+# check for 'asm goto'
+ifeq ($(call shell-cached,$(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC) $(KBUILD_CFLAGS)), y)
+ KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO
+ KBUILD_AFLAGS += -DCC_HAVE_ASM_GOTO
+endif
+
include scripts/Makefile.kcov
include scripts/Makefile.gcc-plugins
@@ -736,6 +752,20 @@
endif
endif
+# Initialize all stack variables with a 0xAA pattern.
+ifdef CONFIG_INIT_STACK_ALL_PATTERN
+KBUILD_CFLAGS += -ftrivial-auto-var-init=pattern
+endif
+
+# Initialize all stack variables with a zero value.
+ifdef CONFIG_INIT_STACK_ALL_ZERO
+# Future support for zero initialization is still being debated, see
+# https://bugs.llvm.org/show_bug.cgi?id=45497. These flags are subject to being
+# renamed or dropped.
+KBUILD_CFLAGS += -ftrivial-auto-var-init=zero
+KBUILD_CFLAGS += -enable-trivial-auto-var-init-zero-knowing-it-will-be-removed-from-clang
+endif
+
KBUILD_CFLAGS += $(call cc-option, -fno-var-tracking-assignments)
ifdef CONFIG_DEBUG_INFO
@@ -799,6 +829,69 @@
LDFLAGS_vmlinux += --gc-sections
endif
+ifdef CONFIG_LTO_CLANG
+ifdef CONFIG_THINLTO
+lto-clang-flags := -flto=thin
+KBUILD_LDFLAGS += --thinlto-cache-dir=.thinlto-cache
+else
+lto-clang-flags := -flto
+endif
+lto-clang-flags += -fvisibility=default $(call cc-option, -fsplit-lto-unit)
+
+# Limit inlining across translation units to reduce binary size
+LD_FLAGS_LTO_CLANG := -mllvm -import-instr-limit=5
+
+KBUILD_LDFLAGS += $(LD_FLAGS_LTO_CLANG)
+KBUILD_LDFLAGS_MODULE += $(LD_FLAGS_LTO_CLANG)
+
+KBUILD_LDFLAGS_MODULE += -T scripts/module-lto.lds
+
+# allow disabling only clang LTO where needed
+DISABLE_LTO_CLANG := -fno-lto
+export DISABLE_LTO_CLANG
+endif
+
+ifdef CONFIG_LTO
+LTO_CFLAGS := $(lto-clang-flags)
+KBUILD_CFLAGS += $(LTO_CFLAGS)
+
+DISABLE_LTO := $(DISABLE_LTO_CLANG)
+export LTO_CFLAGS DISABLE_LTO
+endif
+
+ifdef CONFIG_CFI_CLANG
+cfi-clang-flags += -fsanitize=cfi -fno-sanitize-cfi-canonical-jump-tables \
+ -fno-sanitize-blacklist
+DISABLE_CFI_CLANG := -fno-sanitize=cfi
+ifdef CONFIG_MODULES
+cfi-clang-flags += -fsanitize-cfi-cross-dso
+DISABLE_CFI_CLANG += -fno-sanitize-cfi-cross-dso
+endif
+ifdef CONFIG_CFI_PERMISSIVE
+cfi-clang-flags += -fsanitize-recover=cfi -fno-sanitize-trap=cfi
+endif
+
+# also disable CFI when LTO is disabled
+DISABLE_LTO_CLANG += $(DISABLE_CFI_CLANG)
+# allow disabling only clang CFI where needed
+export DISABLE_CFI_CLANG
+endif
+
+ifdef CONFIG_CFI
+CFI_CFLAGS := $(cfi-clang-flags)
+KBUILD_CFLAGS += $(CFI_CFLAGS)
+
+DISABLE_CFI := $(DISABLE_CFI_CLANG)
+DISABLE_LTO += $(DISABLE_CFI)
+export CFI_CFLAGS DISABLE_CFI
+endif
+
+ifdef CONFIG_SHADOW_CALL_STACK
+CC_FLAGS_SCS := -fsanitize=shadow-call-stack
+KBUILD_CFLAGS += $(CC_FLAGS_SCS)
+export CC_FLAGS_SCS
+endif
+
# arch Makefile may override CC so keep this after arch Makefile is included
NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
@@ -880,6 +973,10 @@
LDFLAGS_vmlinux += $(call ld-option, -X,)
endif
+ifeq ($(CONFIG_RELR),y)
+LDFLAGS_vmlinux += --pack-dyn-relocs=relr
+endif
+
# insure the checker run with the right endianness
CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian)
@@ -1029,9 +1126,12 @@
autoksyms_h := $(if $(CONFIG_TRIM_UNUSED_KSYMS), include/generated/autoksyms.h)
+quiet_cmd_autoksyms_h = GEN $@
+ cmd_autoksyms_h = mkdir -p $(dir $@); \
+ $(CONFIG_SHELL) $(srctree)/scripts/gen_autoksyms.sh $@
+
$(autoksyms_h):
- $(Q)mkdir -p $(dir $@)
- $(Q)touch $@
+ $(call cmd,autoksyms_h)
ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(SRCARCH)/Makefile.postlink)
@@ -1070,7 +1170,8 @@
$(Q)$(MAKE) $(build)=$@ need-builtin=1
define filechk_kernel.release
- echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
+ echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion \
+ $(srctree) $(BRANCH) $(KMI_GENERATION))"
endef
# Store (new) KERNELRELEASE string in include/config/kernel.release
@@ -1148,12 +1249,17 @@
# needs to be updated, so this check is forced on all builds
uts_len := 64
+ifneq (,$(BUILD_NUMBER))
+ UTS_RELEASE=$(KERNELRELEASE)-ab$(BUILD_NUMBER)
+else
+ UTS_RELEASE=$(KERNELRELEASE)
+endif
define filechk_utsrelease.h
- if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \
- echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \
- exit 1; \
- fi; \
- (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";)
+ if [ `echo -n "$(UTS_RELEASE)" | wc -c ` -gt $(uts_len) ]; then \
+ echo '"$(UTS_RELEASE)" exceeds $(uts_len) characters' >&2; \
+ exit 1; \
+ fi; \
+ (echo \#define UTS_RELEASE \"$(UTS_RELEASE)\";)
endef
define filechk_version.h
@@ -1603,7 +1709,8 @@
-o -name modules.builtin -o -name '.tmp_*.o.*' \
-o -name '*.c.[012]*.*' \
-o -name '*.ll' \
- -o -name '*.gcno' \) -type f -print | xargs rm -f
+ -o -name '*.gcno' \
+ -o -name '*.*.symversions' \) -type f -print | xargs rm -f
# Generate tags for editors
# ---------------------------------------------------------------------------
@@ -1656,7 +1763,8 @@
$(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH)
kernelrelease:
- @echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
+ @echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion \
+ $(srctree) $(BRANCH) $(KMI_GENERATION))"
kernelversion:
@echo $(KERNELVERSION)
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..2b5ccce
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1,2 @@
+# include OWNERS from the authoritative android-mainline branch
+include kernel/common:android-mainline:/OWNERS
diff --git a/android/abi_gki_aarch64 b/android/abi_gki_aarch64
new file mode 100644
index 0000000..01ce91f
--- /dev/null
+++ b/android/abi_gki_aarch64
@@ -0,0 +1,227 @@
+[abi_symbol_list]
+# commonly used symbols
+ __cfi_slowpath
+ __const_udelay
+ _dev_err
+ devm_ioremap_resource
+ devm_kmalloc
+ devm_request_threaded_irq
+ _dev_warn
+ dummy_dma_ops
+ find_next_bit
+ find_next_zero_bit
+ kfree
+ __kmalloc
+ kmalloc_caches
+ kmem_cache_alloc_trace
+ ktime_get
+ __list_add_valid
+ __ll_sc_atomic64_andnot
+ __ll_sc_atomic_add_return
+ module_layout
+ __mutex_init
+ mutex_lock
+ mutex_unlock
+ of_find_property
+ of_property_read_variable_u32_array
+ platform_get_irq
+ platform_get_resource
+ printk
+ __put_task_struct
+ ___ratelimit
+ _raw_spin_lock_irqsave
+ _raw_spin_unlock_irqrestore
+ snprintf
+ __stack_chk_fail
+ __stack_chk_guard
+ strcmp
+ __udelay
+
+# required by arm-smmu.ko
+ alloc_io_pgtable_ops
+ amba_bustype
+ bus_set_iommu
+ devm_free_irq
+ _dev_notice
+ driver_find_device
+ driver_for_each_device
+ free_io_pgtable_ops
+ generic_device_group
+ iommu_alloc_resv_region
+ iommu_device_link
+ iommu_device_register
+ iommu_device_sysfs_add
+ iommu_device_unlink
+ iommu_dma_get_resv_regions
+ iommu_fwspec_add_ids
+ iommu_fwspec_free
+ iommu_fwspec_init
+ iommu_get_dma_cookie
+ iommu_group_get_for_dev
+ iommu_group_put
+ iommu_group_ref_get
+ iommu_group_remove_device
+ iommu_present
+ iommu_put_dma_cookie
+ __ll_sc_atomic64_fetch_or
+ of_device_get_match_data
+ of_dma_is_coherent
+ of_phandle_iterator_args
+ of_phandle_iterator_init
+ of_phandle_iterator_next
+ param_ops_bool
+ param_ops_int
+ pci_bus_type
+ pci_device_group
+ pci_for_each_dma_alias
+ pci_request_acs
+ platform_bus_type
+ __platform_driver_register
+ platform_driver_unregister
+ put_device
+
+# required by ufshcd-core.ko
+ __alloc_workqueue_key
+ async_schedule
+ bio_crypt_should_process
+ blk_queue_max_segment_size
+ blk_queue_update_dma_pad
+ bpf_trace_run2
+ bpf_trace_run4
+ bpf_trace_run5
+ bpf_trace_run8
+ cancel_delayed_work
+ cancel_delayed_work_sync
+ cancel_work_sync
+ clk_disable
+ clk_enable
+ clk_prepare
+ clk_set_rate
+ clk_unprepare
+ complete
+ cpu_number
+ __cpu_online_mask
+ delayed_work_timer_fn
+ destroy_workqueue
+ dev_driver_string
+ devfreq_add_device
+ devfreq_remove_device
+ devfreq_resume_device
+ devfreq_suspend_device
+ device_create_file
+ device_remove_file
+ devm_clk_get
+ devm_kfree
+ devm_regulator_get
+ dev_pm_opp_add
+ dev_pm_opp_remove
+ dmam_alloc_coherent
+ down_read
+ down_read_trylock
+ down_write
+ event_triggers_call
+ find_last_bit
+ finish_wait
+ flush_work
+ free_irq
+ __init_rwsem
+ init_timer_key
+ init_wait_entry
+ __init_waitqueue_head
+ jiffies
+ jiffies_to_usecs
+ keyslot_manager_create
+ keyslot_manager_destroy
+ keyslot_manager_private
+ keyslot_manager_reprogram_all_keys
+ keyslot_manager_set_max_dun_bytes
+ kstrtouint
+ kstrtoull
+ __ll_sc_atomic64_fetch_andnot_release
+ __ll_sc_atomic64_fetch_or_acquire
+ __ll_sc_atomic_add
+ __ll_sc_atomic_sub_return
+ __ll_sc___cmpxchg_case_mb_4
+ memcpy
+ memset
+ memzero_explicit
+ __msecs_to_jiffies
+ msleep
+ perf_trace_buf_alloc
+ perf_trace_run_bpf_submit
+ __pm_runtime_idle
+ __pm_runtime_resume
+ preempt_schedule_notrace
+ prepare_to_wait_event
+ print_hex_dump
+ queue_delayed_work_on
+ queue_work_on
+ _raw_spin_lock
+ _raw_spin_unlock
+ regulator_count_voltages
+ regulator_disable
+ regulator_enable
+ regulator_set_load
+ regulator_set_voltage
+ request_threaded_irq
+ schedule
+ schedule_timeout
+ __scsi_add_device
+ scsi_add_host_with_dma
+ scsi_block_requests
+ scsi_change_queue_depth
+ scsi_device_get
+ scsi_device_put
+ scsi_dma_map
+ scsi_dma_unmap
+ __scsi_execute
+ scsi_host_alloc
+ scsi_host_put
+ scsi_print_command
+ scsi_print_sense_hdr
+ scsi_remove_device
+ scsi_remove_host
+ scsi_report_bus_reset
+ scsi_scan_host
+ scsi_unblock_requests
+ sdev_prefix_printk
+ sg_next
+ sprintf
+ strcpy
+ strlcpy
+ strlen
+ strncmp
+ sysfs_create_groups
+ sysfs_remove_groups
+ system_wq
+ trace_define_field
+ trace_event_buffer_commit
+ trace_event_buffer_reserve
+ trace_event_ignore_this_pid
+ trace_event_raw_init
+ trace_event_reg
+ trace_handle_return
+ trace_print_hex_seq
+ trace_print_symbols_seq
+ trace_raw_output_prep
+ trace_seq_printf
+ up_read
+ up_write
+ usleep_range
+ utf16s_to_utf8s
+ wait_for_completion_timeout
+ __wake_up
+ __warn_printk
+
+# required by ufshcd-pltfrm.ko
+ _dev_info
+ kstrdup
+ of_get_property
+ of_parse_phandle
+ of_property_read_string_helper
+ pm_runtime_enable
+ __pm_runtime_set_status
+
+# required by usb_f_cdev.ko
+ cdev_device_add
+ cdev_device_del
diff --git a/android/abi_gki_aarch64.xml b/android/abi_gki_aarch64.xml
new file mode 100644
index 0000000..ddff5e4
--- /dev/null
+++ b/android/abi_gki_aarch64.xml
@@ -0,0 +1,143124 @@
+<abi-corpus-group version='2.0' architecture='elf-arm-aarch64'>
+ <abi-corpus version='2.0' path='vmlinux' architecture='elf-arm-aarch64'>
+ <elf-function-symbols>
+ <elf-symbol name='LZ4_decompress_safe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7c1107a'/>
+ <elf-symbol name='PDE_DATA' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfcd64365'/>
+ <elf-symbol name='ZSTD_DStreamWorkspaceBound' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3737d9a9'/>
+ <elf-symbol name='ZSTD_decompressStream' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x878469bd'/>
+ <elf-symbol name='ZSTD_initDStream' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37746fde'/>
+ <elf-symbol name='___pskb_trim' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb58af212'/>
+ <elf-symbol name='___ratelimit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d24c881'/>
+ <elf-symbol name='__alloc_disk_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa505da37'/>
+ <elf-symbol name='__alloc_pages_nodemask' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf1089ab2'/>
+ <elf-symbol name='__alloc_percpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x949f7342'/>
+ <elf-symbol name='__alloc_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x239de235'/>
+ <elf-symbol name='__alloc_workqueue_key' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x43a53735'/>
+ <elf-symbol name='__arch_copy_from_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf507de1'/>
+ <elf-symbol name='__arch_copy_in_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9957204'/>
+ <elf-symbol name='__arch_copy_to_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b2941b2'/>
+ <elf-symbol name='__arm_smccc_smc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf93aae46'/>
+ <elf-symbol name='__audit_inode_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5fd98480'/>
+ <elf-symbol name='__bitmap_clear' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x922f45a6'/>
+ <elf-symbol name='__bitmap_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x615911d7'/>
+ <elf-symbol name='__bitmap_shift_right' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaad0ae78'/>
+ <elf-symbol name='__bitmap_weight' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63c4d61f'/>
+ <elf-symbol name='__break_lease' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc187236'/>
+ <elf-symbol name='__cfg80211_alloc_event_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85d54767'/>
+ <elf-symbol name='__cfg80211_alloc_reply_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x83bdef86'/>
+ <elf-symbol name='__cfg80211_send_event_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbfb768d2'/>
+ <elf-symbol name='__cfi_slowpath' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2cd90edd'/>
+ <elf-symbol name='__check_object_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88db9f48'/>
+ <elf-symbol name='__class_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9f79bf2'/>
+ <elf-symbol name='__class_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfccdd32c'/>
+ <elf-symbol name='__clk_determine_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf40e7733'/>
+ <elf-symbol name='__clk_get_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc8c72245'/>
+ <elf-symbol name='__clk_get_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc569d8ce'/>
+ <elf-symbol name='__clk_is_enabled' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6a4a872'/>
+ <elf-symbol name='__clk_mux_determine_rate_closest' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdaf5cfab'/>
+ <elf-symbol name='__close_fd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xecddee08'/>
+ <elf-symbol name='__compat_only_sysfs_link_entry_to_kobj' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x472501f'/>
+ <elf-symbol name='__const_udelay' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeae3dfd6'/>
+ <elf-symbol name='__cpuhp_remove_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7a4425f'/>
+ <elf-symbol name='__cpuhp_setup_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcec2d88f'/>
+ <elf-symbol name='__cpuhp_state_add_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65f9a92e'/>
+ <elf-symbol name='__cpuhp_state_remove_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74bb7246'/>
+ <elf-symbol name='__crc32c_le_shift' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d5e1008'/>
+ <elf-symbol name='__dev_get_by_index' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa4f24b16'/>
+ <elf-symbol name='__dev_kfree_skb_any' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5cc7086'/>
+ <elf-symbol name='__devm_iio_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd70f0180'/>
+ <elf-symbol name='__devm_of_phy_provider_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xace9f34c'/>
+ <elf-symbol name='__devm_regmap_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd1dacaf0'/>
+ <elf-symbol name='__devm_regmap_init_i2c' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3fd1769'/>
+ <elf-symbol name='__devm_regmap_init_mmio_clk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x708d4ffe'/>
+ <elf-symbol name='__devm_request_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b269b03'/>
+ <elf-symbol name='__devm_reset_control_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x345fa5e'/>
+ <elf-symbol name='__dma_clean_area' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x13face90'/>
+ <elf-symbol name='__dma_flush_area' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd778d941'/>
+ <elf-symbol name='__dma_inv_area' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf74a4ea3'/>
+ <elf-symbol name='__drm_atomic_helper_connector_destroy_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa75a3ef'/>
+ <elf-symbol name='__drm_atomic_helper_connector_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc451b52'/>
+ <elf-symbol name='__drm_atomic_helper_connector_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x387f2760'/>
+ <elf-symbol name='__drm_atomic_helper_crtc_destroy_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9f04ff87'/>
+ <elf-symbol name='__drm_atomic_helper_crtc_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ea59dc2'/>
+ <elf-symbol name='__drm_atomic_helper_disable_plane' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9866319c'/>
+ <elf-symbol name='__drm_atomic_helper_plane_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x54582263'/>
+ <elf-symbol name='__drm_atomic_helper_private_obj_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6714c1a2'/>
+ <elf-symbol name='__drm_atomic_helper_set_config' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x979c5eea'/>
+ <elf-symbol name='__drm_atomic_state_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9cad492'/>
+ <elf-symbol name='__ethtool_get_link_ksettings' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd75d93fd'/>
+ <elf-symbol name='__flush_dcache_area' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6dbf1fe7'/>
+ <elf-symbol name='__free_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e3a1286'/>
+ <elf-symbol name='__fsnotify_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7409e98a'/>
+ <elf-symbol name='__fsverity_verify_signature' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeec8f9cf'/>
+ <elf-symbol name='__get_free_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93fca811'/>
+ <elf-symbol name='__get_task_comm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b13a779'/>
+ <elf-symbol name='__hrtimer_get_remaining' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc40e9952'/>
+ <elf-symbol name='__hvc_resize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x430b06f7'/>
+ <elf-symbol name='__hwspin_lock_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2be80bc0'/>
+ <elf-symbol name='__hwspin_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x59f51a0a'/>
+ <elf-symbol name='__init_rwsem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65294bcf'/>
+ <elf-symbol name='__init_waitqueue_head' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9a5ea54'/>
+ <elf-symbol name='__ioremap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b4b2933'/>
+ <elf-symbol name='__iounmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x45a55ec8'/>
+ <elf-symbol name='__iowrite32_copy' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0x2dba276a'/>
+ <elf-symbol name='__ip_dev_find' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b4a7117'/>
+ <elf-symbol name='__ip_queue_xmit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73d680db'/>
+ <elf-symbol name='__ipv6_addr_type' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd542439'/>
+ <elf-symbol name='__irq_domain_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2dfe692d'/>
+ <elf-symbol name='__irq_set_affinity' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4011274b'/>
+ <elf-symbol name='__irq_set_handler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1282d30f'/>
+ <elf-symbol name='__kmalloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2b09ce5'/>
+ <elf-symbol name='__kthread_init_worker' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd2f8749'/>
+ <elf-symbol name='__list_add_valid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68f31cbd'/>
+ <elf-symbol name='__list_del_entry_valid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1537255'/>
+ <elf-symbol name='__ll_sc___cmpxchg_case_mb_4' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdbd1083c'/>
+ <elf-symbol name='__ll_sc___cmpxchg_case_mb_8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd06ae354'/>
+ <elf-symbol name='__ll_sc___cmpxchg_case_rel_8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x768aa71d'/>
+ <elf-symbol name='__ll_sc_atomic64_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa899153f'/>
+ <elf-symbol name='__ll_sc_atomic64_add_return' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e9183dc'/>
+ <elf-symbol name='__ll_sc_atomic64_andnot' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8aa9477'/>
+ <elf-symbol name='__ll_sc_atomic64_fetch_andnot' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x83b30940'/>
+ <elf-symbol name='__ll_sc_atomic64_fetch_andnot_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3b9ed36a'/>
+ <elf-symbol name='__ll_sc_atomic64_fetch_or' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67d370ad'/>
+ <elf-symbol name='__ll_sc_atomic64_fetch_or_acquire' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x80b436a8'/>
+ <elf-symbol name='__ll_sc_atomic64_or' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad1c144b'/>
+ <elf-symbol name='__ll_sc_atomic64_sub' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba195f7b'/>
+ <elf-symbol name='__ll_sc_atomic64_sub_return' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcbe0d43a'/>
+ <elf-symbol name='__ll_sc_atomic64_xor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2ed8c26'/>
+ <elf-symbol name='__ll_sc_atomic_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f7386be'/>
+ <elf-symbol name='__ll_sc_atomic_add_return' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c97c8a4'/>
+ <elf-symbol name='__ll_sc_atomic_fetch_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x35772342'/>
+ <elf-symbol name='__ll_sc_atomic_or' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a728925'/>
+ <elf-symbol name='__ll_sc_atomic_sub' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9a3efb9'/>
+ <elf-symbol name='__ll_sc_atomic_sub_return' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec2ac905'/>
+ <elf-symbol name='__local_bh_enable_ip' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c3fce39'/>
+ <elf-symbol name='__media_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ed6822e'/>
+ <elf-symbol name='__memcpy_fromio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d112304'/>
+ <elf-symbol name='__memcpy_toio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf77555cd'/>
+ <elf-symbol name='__memset_io' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18b48e28'/>
+ <elf-symbol name='__module_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf347b3b6'/>
+ <elf-symbol name='__msecs_to_jiffies' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f02188f'/>
+ <elf-symbol name='__mutex_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a76f11f'/>
+ <elf-symbol name='__napi_alloc_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6cff4a2'/>
+ <elf-symbol name='__napi_schedule' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72770133'/>
+ <elf-symbol name='__ndelay' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf8c695a'/>
+ <elf-symbol name='__netdev_alloc_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbdebed01'/>
+ <elf-symbol name='__netif_set_xps_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ae7b328'/>
+ <elf-symbol name='__netlink_dump_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb99b379'/>
+ <elf-symbol name='__netlink_kernel_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b130e92'/>
+ <elf-symbol name='__next_zones_zonelist' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x35b5faad'/>
+ <elf-symbol name='__nlmsg_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x553fae00'/>
+ <elf-symbol name='__pci_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93e919f3'/>
+ <elf-symbol name='__percpu_counter_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x152d6b27'/>
+ <elf-symbol name='__platform_driver_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1373808'/>
+ <elf-symbol name='__pm_relax' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e00560e'/>
+ <elf-symbol name='__pm_runtime_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ae10383'/>
+ <elf-symbol name='__pm_runtime_idle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab112e6c'/>
+ <elf-symbol name='__pm_runtime_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7fd5849e'/>
+ <elf-symbol name='__pm_runtime_set_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74d732e4'/>
+ <elf-symbol name='__pm_runtime_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae275012'/>
+ <elf-symbol name='__pm_runtime_use_autosuspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf52f46d7'/>
+ <elf-symbol name='__pm_stay_awake' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6ca9b85'/>
+ <elf-symbol name='__pskb_pull_tail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x910f1833'/>
+ <elf-symbol name='__put_cred' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb8e939c'/>
+ <elf-symbol name='__put_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x453e24cf'/>
+ <elf-symbol name='__put_task_struct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac3f63d9'/>
+ <elf-symbol name='__radix_tree_insert' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x287a375'/>
+ <elf-symbol name='__rcu_read_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d522714'/>
+ <elf-symbol name='__rcu_read_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2469810f'/>
+ <elf-symbol name='__refrigerator' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4482cdb'/>
+ <elf-symbol name='__register_chrdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x911cf31e'/>
+ <elf-symbol name='__regmap_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5e3ccd'/>
+ <elf-symbol name='__release_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1848221d'/>
+ <elf-symbol name='__request_module' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x402b8281'/>
+ <elf-symbol name='__request_percpu_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d9ee2a0'/>
+ <elf-symbol name='__request_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca39ba0'/>
+ <elf-symbol name='__rtc_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4126a3cf'/>
+ <elf-symbol name='__scsi_add_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcbb8b574'/>
+ <elf-symbol name='__scsi_execute' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xce633c36'/>
+ <elf-symbol name='__sg_page_iter_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c9ca58f'/>
+ <elf-symbol name='__sg_page_iter_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xccd4c999'/>
+ <elf-symbol name='__sk_mem_reclaim' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25d26091'/>
+ <elf-symbol name='__sk_mem_schedule' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda39fafc'/>
+ <elf-symbol name='__skb_checksum' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x837edfd8'/>
+ <elf-symbol name='__skb_flow_dissect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9359eb2c'/>
+ <elf-symbol name='__skb_pad' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ce4523d'/>
+ <elf-symbol name='__sock_recv_ts_and_drops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6d911a0'/>
+ <elf-symbol name='__spi_alloc_controller' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76dacc7'/>
+ <elf-symbol name='__spi_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x611cf807'/>
+ <elf-symbol name='__splice_from_pipe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeeef135'/>
+ <elf-symbol name='__spmi_driver_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x860b018f'/>
+ <elf-symbol name='__srcu_read_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0cc9430'/>
+ <elf-symbol name='__srcu_read_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad312c8'/>
+ <elf-symbol name='__stack_chk_fail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf0fdf6cb'/>
+ <elf-symbol name='__sw_hweight32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74c134b9'/>
+ <elf-symbol name='__sw_hweight64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9f46ced8'/>
+ <elf-symbol name='__sw_hweight8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc3fcbc9'/>
+ <elf-symbol name='__sysfs_match_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x169938c1'/>
+ <elf-symbol name='__tasklet_hi_schedule' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47939e0d'/>
+ <elf-symbol name='__tasklet_schedule' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfaef0ed'/>
+ <elf-symbol name='__trace_bprintk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc72e1233'/>
+ <elf-symbol name='__tty_insert_flip_char' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41d35564'/>
+ <elf-symbol name='__udelay' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e7d6bd0'/>
+ <elf-symbol name='__uio_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9e9c2fe'/>
+ <elf-symbol name='__unregister_chrdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6bc3fbc0'/>
+ <elf-symbol name='__usb_create_hcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42f8b562'/>
+ <elf-symbol name='__usecs_to_jiffies' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf1969a8e'/>
+ <elf-symbol name='__v4l2_ctrl_modify_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65c28020'/>
+ <elf-symbol name='__video_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87254b17'/>
+ <elf-symbol name='__vmalloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad2831af'/>
+ <elf-symbol name='__wake_up' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3eeb2322'/>
+ <elf-symbol name='__wake_up_locked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2773c485'/>
+ <elf-symbol name='__wake_up_sync_key' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x399bb8c0'/>
+ <elf-symbol name='__warn_printk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad27f361'/>
+ <elf-symbol name='__xfrm_policy_check' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82e96f3d'/>
+ <elf-symbol name='_cleanup_srcu_struct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x833f8f6a'/>
+ <elf-symbol name='_copy_from_iter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2f14d292'/>
+ <elf-symbol name='_copy_from_iter_full' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6069c01'/>
+ <elf-symbol name='_copy_to_iter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6bb550b7'/>
+ <elf-symbol name='_dev_crit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6125c3f3'/>
+ <elf-symbol name='_dev_emerg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38ed7dac'/>
+ <elf-symbol name='_dev_err' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77d3197a'/>
+ <elf-symbol name='_dev_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc26467fd'/>
+ <elf-symbol name='_dev_notice' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe34195a4'/>
+ <elf-symbol name='_dev_warn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79088c6d'/>
+ <elf-symbol name='_proc_mkdir' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9dc77c20'/>
+ <elf-symbol name='_raw_read_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x32ae5741'/>
+ <elf-symbol name='_raw_read_lock_bh' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x150e3657'/>
+ <elf-symbol name='_raw_read_lock_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8595510'/>
+ <elf-symbol name='_raw_read_lock_irqsave' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x736b5662'/>
+ <elf-symbol name='_raw_read_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef2993f4'/>
+ <elf-symbol name='_raw_read_unlock_bh' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad10eb8'/>
+ <elf-symbol name='_raw_read_unlock_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc8f375c1'/>
+ <elf-symbol name='_raw_read_unlock_irqrestore' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa16c8613'/>
+ <elf-symbol name='_raw_spin_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdbf17652'/>
+ <elf-symbol name='_raw_spin_lock_bh' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3635b01'/>
+ <elf-symbol name='_raw_spin_lock_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47941711'/>
+ <elf-symbol name='_raw_spin_lock_irqsave' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51760917'/>
+ <elf-symbol name='_raw_spin_trylock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c3253ec'/>
+ <elf-symbol name='_raw_spin_trylock_bh' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x963dcba1'/>
+ <elf-symbol name='_raw_spin_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x301fa007'/>
+ <elf-symbol name='_raw_spin_unlock_bh' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x49c41a57'/>
+ <elf-symbol name='_raw_spin_unlock_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5664491'/>
+ <elf-symbol name='_raw_spin_unlock_irqrestore' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3812050a'/>
+ <elf-symbol name='_raw_write_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5a245f6d'/>
+ <elf-symbol name='_raw_write_lock_bh' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1ed698d'/>
+ <elf-symbol name='_raw_write_lock_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9eab8d85'/>
+ <elf-symbol name='_raw_write_lock_irqsave' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe25ee9d3'/>
+ <elf-symbol name='_raw_write_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd8c318e2'/>
+ <elf-symbol name='_raw_write_unlock_bh' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ad29bab'/>
+ <elf-symbol name='_raw_write_unlock_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4ccd378a'/>
+ <elf-symbol name='_raw_write_unlock_irqrestore' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c1b9f8e'/>
+ <elf-symbol name='_snd_ctl_add_slave' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9643c67a'/>
+ <elf-symbol name='_snd_pcm_lib_alloc_vmalloc_buffer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd8e379fc'/>
+ <elf-symbol name='add_hwgenerator_randomness' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa1ed9c8b'/>
+ <elf-symbol name='add_timer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65744673'/>
+ <elf-symbol name='add_uevent_var' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d682a48'/>
+ <elf-symbol name='add_wait_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4afb2238'/>
+ <elf-symbol name='adjust_managed_page_count' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x370cd115'/>
+ <elf-symbol name='alarm_cancel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf0b3bbbb'/>
+ <elf-symbol name='alarm_expires_remaining' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69601b41'/>
+ <elf-symbol name='alarm_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63c58846'/>
+ <elf-symbol name='alarm_start_relative' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4c845c2'/>
+ <elf-symbol name='alarm_try_to_cancel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c8fceb6'/>
+ <elf-symbol name='alarmtimer_get_rtcdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2b1e5e9'/>
+ <elf-symbol name='alloc_chrdev_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe3ec2f2b'/>
+ <elf-symbol name='alloc_etherdev_mqs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe888ac27'/>
+ <elf-symbol name='alloc_io_pgtable_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c635f8d'/>
+ <elf-symbol name='alloc_netdev_mqs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x849e1f0f'/>
+ <elf-symbol name='alloc_pages_exact' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7532588a'/>
+ <elf-symbol name='alloc_skb_with_frags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3b9a5b26'/>
+ <elf-symbol name='amba_driver_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbdad5e97'/>
+ <elf-symbol name='amba_driver_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2638b8da'/>
+ <elf-symbol name='anon_inode_getfile' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b95ec66'/>
+ <elf-symbol name='arch_bpf_jit_check_func' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5a8468ca'/>
+ <elf-symbol name='arch_set_freq_scale' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x16128ed2'/>
+ <elf-symbol name='arch_setup_dma_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25834166'/>
+ <elf-symbol name='arch_timer_get_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c484c7f'/>
+ <elf-symbol name='arch_timer_mem_get_cval' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60c75740'/>
+ <elf-symbol name='argv_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0b13336'/>
+ <elf-symbol name='argv_split' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ba7089d'/>
+ <elf-symbol name='arm_cpuidle_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74c26795'/>
+ <elf-symbol name='async_schedule' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbceb1e58'/>
+ <elf-symbol name='atomic_notifier_call_chain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3752c27'/>
+ <elf-symbol name='atomic_notifier_chain_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b9997fb'/>
+ <elf-symbol name='atomic_notifier_chain_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7181db30'/>
+ <elf-symbol name='audit_log' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2796ebe4'/>
+ <elf-symbol name='autoremove_wake_function' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5b57034'/>
+ <elf-symbol name='bcmp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x263c3152'/>
+ <elf-symbol name='bin2hex' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd45cc6ca'/>
+ <elf-symbol name='bio_advance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5bf09d3d'/>
+ <elf-symbol name='bio_alloc_bioset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7fe89f9'/>
+ <elf-symbol name='bio_chain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xebc311f8'/>
+ <elf-symbol name='bio_crypt_should_process' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6bebbf62'/>
+ <elf-symbol name='bio_endio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc175a6de'/>
+ <elf-symbol name='bio_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb73b4391'/>
+ <elf-symbol name='bitmap_find_next_zero_area_off' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x64127b67'/>
+ <elf-symbol name='bitmap_print_to_pagebuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf474c21c'/>
+ <elf-symbol name='blk_cleanup_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2f5cf547'/>
+ <elf-symbol name='blk_execute_rq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfda18a94'/>
+ <elf-symbol name='blk_get_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e93d7f3'/>
+ <elf-symbol name='blk_mq_alloc_tag_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb2464b8'/>
+ <elf-symbol name='blk_mq_complete_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1fb9e89'/>
+ <elf-symbol name='blk_mq_end_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x814383ce'/>
+ <elf-symbol name='blk_mq_free_tag_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6459fa0c'/>
+ <elf-symbol name='blk_mq_init_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd06f34cb'/>
+ <elf-symbol name='blk_mq_quiesce_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ac0e70f'/>
+ <elf-symbol name='blk_mq_start_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd57add89'/>
+ <elf-symbol name='blk_mq_start_stopped_hw_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee9c312d'/>
+ <elf-symbol name='blk_mq_stop_hw_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf73ad672'/>
+ <elf-symbol name='blk_mq_unquiesce_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62ff2f7b'/>
+ <elf-symbol name='blk_mq_virtio_map_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9062f7c0'/>
+ <elf-symbol name='blk_put_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71a112a0'/>
+ <elf-symbol name='blk_queue_alignment_offset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b63d6c3'/>
+ <elf-symbol name='blk_queue_io_min' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe4d23296'/>
+ <elf-symbol name='blk_queue_io_opt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7806e06d'/>
+ <elf-symbol name='blk_queue_logical_block_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ce07048'/>
+ <elf-symbol name='blk_queue_max_hw_sectors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x168e25ca'/>
+ <elf-symbol name='blk_queue_max_segment_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda5c5803'/>
+ <elf-symbol name='blk_queue_max_segments' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a1432fc'/>
+ <elf-symbol name='blk_queue_physical_block_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x298d7d26'/>
+ <elf-symbol name='blk_queue_rq_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x36aaf1e0'/>
+ <elf-symbol name='blk_queue_update_dma_pad' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97050c30'/>
+ <elf-symbol name='blk_queue_write_cache' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe319e368'/>
+ <elf-symbol name='blk_rq_map_kern' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x473dd410'/>
+ <elf-symbol name='blk_rq_map_sg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd49b85d3'/>
+ <elf-symbol name='blk_status_to_errno' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84502a47'/>
+ <elf-symbol name='blocking_notifier_call_chain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf5cece1'/>
+ <elf-symbol name='blocking_notifier_chain_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e65d8c3'/>
+ <elf-symbol name='blocking_notifier_chain_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3513bff5'/>
+ <elf-symbol name='bpf_prog_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x695a49ba'/>
+ <elf-symbol name='bpf_prog_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf464c544'/>
+ <elf-symbol name='bpf_prog_sub' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x167085ce'/>
+ <elf-symbol name='bpf_trace_run1' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5238b3f2'/>
+ <elf-symbol name='bpf_trace_run10' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8180b5e8'/>
+ <elf-symbol name='bpf_trace_run11' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x228a07e1'/>
+ <elf-symbol name='bpf_trace_run12' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd359226b'/>
+ <elf-symbol name='bpf_trace_run2' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4c485c21'/>
+ <elf-symbol name='bpf_trace_run3' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76e281b6'/>
+ <elf-symbol name='bpf_trace_run4' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x853d0de0'/>
+ <elf-symbol name='bpf_trace_run5' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x64315565'/>
+ <elf-symbol name='bpf_trace_run6' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5e408f5'/>
+ <elf-symbol name='bpf_trace_run7' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x437d9d4a'/>
+ <elf-symbol name='bpf_trace_run8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18a5ec0c'/>
+ <elf-symbol name='bpf_warn_invalid_xdp_action' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c2bcd37'/>
+ <elf-symbol name='bt_err' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47022514'/>
+ <elf-symbol name='build_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6758bffe'/>
+ <elf-symbol name='bus_find_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac629f52'/>
+ <elf-symbol name='bus_find_device_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d97bc1d'/>
+ <elf-symbol name='bus_for_each_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x962e7d73'/>
+ <elf-symbol name='bus_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a130ead'/>
+ <elf-symbol name='bus_set_iommu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa13db8da'/>
+ <elf-symbol name='bus_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d7e1b1e'/>
+ <elf-symbol name='call_netdevice_notifiers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xedaf186e'/>
+ <elf-symbol name='call_rcu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28aa6a67'/>
+ <elf-symbol name='cancel_delayed_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x672bf342'/>
+ <elf-symbol name='cancel_delayed_work_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec306b1c'/>
+ <elf-symbol name='cancel_work_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72394689'/>
+ <elf-symbol name='capable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6cbbc89'/>
+ <elf-symbol name='cdev_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf2fccca3'/>
+ <elf-symbol name='cdev_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca81b864'/>
+ <elf-symbol name='cdev_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d0c0ebb'/>
+ <elf-symbol name='cdev_device_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4ceb324c'/>
+ <elf-symbol name='cdev_device_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba6e2c68'/>
+ <elf-symbol name='cdev_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe373b681'/>
+ <elf-symbol name='cfg80211_ap_stopped' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72d0088b'/>
+ <elf-symbol name='cfg80211_calculate_bitrate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15a37cf3'/>
+ <elf-symbol name='cfg80211_ch_switch_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x229231e3'/>
+ <elf-symbol name='cfg80211_chandef_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60fe7d24'/>
+ <elf-symbol name='cfg80211_connect_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c3a1971'/>
+ <elf-symbol name='cfg80211_del_sta_sinfo' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf76c50d0'/>
+ <elf-symbol name='cfg80211_disconnected' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab8b8f4f'/>
+ <elf-symbol name='cfg80211_external_auth_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x240e2e36'/>
+ <elf-symbol name='cfg80211_ft_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e6670d8'/>
+ <elf-symbol name='cfg80211_get_bss' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x59f29710'/>
+ <elf-symbol name='cfg80211_gtk_rekey_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xebb8af6'/>
+ <elf-symbol name='cfg80211_ibss_joined' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb423a53'/>
+ <elf-symbol name='cfg80211_inform_bss_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x59326f38'/>
+ <elf-symbol name='cfg80211_inform_bss_frame_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ec6e849'/>
+ <elf-symbol name='cfg80211_mgmt_tx_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x218f3fb0'/>
+ <elf-symbol name='cfg80211_michael_mic_failure' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6898499c'/>
+ <elf-symbol name='cfg80211_new_sta' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ef6f4cb'/>
+ <elf-symbol name='cfg80211_pmksa_candidate_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee655c8f'/>
+ <elf-symbol name='cfg80211_put_bss' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc94bb7d1'/>
+ <elf-symbol name='cfg80211_ready_on_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x304ad3ac'/>
+ <elf-symbol name='cfg80211_remain_on_channel_expired' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3245a56a'/>
+ <elf-symbol name='cfg80211_roamed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2f22ad13'/>
+ <elf-symbol name='cfg80211_rx_mgmt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ca0c983'/>
+ <elf-symbol name='cfg80211_rx_unprot_mlme_mgmt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23da9a21'/>
+ <elf-symbol name='cfg80211_scan_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb384c321'/>
+ <elf-symbol name='cfg80211_sched_scan_results' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2c9e8b9'/>
+ <elf-symbol name='cfg80211_tdls_oper_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2733524f'/>
+ <elf-symbol name='cfg80211_unlink_bss' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac7f9cb'/>
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+ <elf-symbol name='clk_hw_get_num_parents' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8971b72'/>
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+ <elf-symbol name='cma_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6f5f09b'/>
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+ <elf-symbol name='config_ep_by_speed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7181c73d'/>
+ <elf-symbol name='config_group_init_type_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5799365'/>
+ <elf-symbol name='console_stop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7e4d23f2'/>
+ <elf-symbol name='consume_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x830f5e83'/>
+ <elf-symbol name='copy_page_from_iter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3bd53749'/>
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+ <elf-symbol name='cpufreq_cpu_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4a4ef4d6'/>
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+ <elf-symbol name='cpufreq_generic_frequency_table_verify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9fa01740'/>
+ <elf-symbol name='cpufreq_platform_cooling_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44a8f2cb'/>
+ <elf-symbol name='cpufreq_quick_get_max' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x33f0768c'/>
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+ <elf-symbol name='cpuidle_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e42c175'/>
+ <elf-symbol name='cpuidle_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2195bfed'/>
+ <elf-symbol name='cpuidle_register_governor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5bc90564'/>
+ <elf-symbol name='cpuidle_unregister_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9b154ca8'/>
+ <elf-symbol name='cpumask_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92ad1db9'/>
+ <elf-symbol name='cpumask_next_and' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4445ab21'/>
+ <elf-symbol name='cpumask_next_wrap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x233eb8eb'/>
+ <elf-symbol name='cpus_read_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa04f945a'/>
+ <elf-symbol name='cpus_read_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18fb2caf'/>
+ <elf-symbol name='crc32_le' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe78bfacd'/>
+ <elf-symbol name='crc32c' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb15b4109'/>
+ <elf-symbol name='crc8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe2aae5cc'/>
+ <elf-symbol name='crc8_populate_msb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa8106bc'/>
+ <elf-symbol name='crc_ccitt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x52ecbc75'/>
+ <elf-symbol name='crypto_aead_setauthsize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2ad350c'/>
+ <elf-symbol name='crypto_aead_setkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0d36270'/>
+ <elf-symbol name='crypto_ahash_digest' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x56f69afb'/>
+ <elf-symbol name='crypto_ahash_setkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70a22538'/>
+ <elf-symbol name='crypto_alloc_aead' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x380a7b99'/>
+ <elf-symbol name='crypto_alloc_ahash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5a47f7f6'/>
+ <elf-symbol name='crypto_alloc_base' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6cd5e301'/>
+ <elf-symbol name='crypto_alloc_shash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8d73c00'/>
+ <elf-symbol name='crypto_alloc_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x656cc202'/>
+ <elf-symbol name='crypto_alloc_sync_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b761324'/>
+ <elf-symbol name='crypto_dequeue_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0c0cd2c'/>
+ <elf-symbol name='crypto_destroy_tfm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x59f49360'/>
+ <elf-symbol name='crypto_enqueue_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdcc66653'/>
+ <elf-symbol name='crypto_init_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x499043d3'/>
+ <elf-symbol name='crypto_register_aead' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe53a5ee8'/>
+ <elf-symbol name='crypto_register_ahash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb87ebcb0'/>
+ <elf-symbol name='crypto_register_alg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x29735af7'/>
+ <elf-symbol name='crypto_register_rngs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5fe282a'/>
+ <elf-symbol name='crypto_shash_digest' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa34c58de'/>
+ <elf-symbol name='crypto_shash_final' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb09ed1ed'/>
+ <elf-symbol name='crypto_shash_setkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x919beb40'/>
+ <elf-symbol name='crypto_shash_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3afa3af'/>
+ <elf-symbol name='crypto_unregister_aead' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1db0e20c'/>
+ <elf-symbol name='crypto_unregister_ahash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x759f5ab2'/>
+ <elf-symbol name='crypto_unregister_alg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f092a20'/>
+ <elf-symbol name='crypto_unregister_rngs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44413d38'/>
+ <elf-symbol name='csum_ipv6_magic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d65cbd5'/>
+ <elf-symbol name='csum_partial' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe113bbbc'/>
+ <elf-symbol name='csum_tcpudp_nofold' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd25bc5d4'/>
+ <elf-symbol name='d_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d162d31'/>
+ <elf-symbol name='d_delete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9cf55a9'/>
+ <elf-symbol name='d_drop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12d2e75f'/>
+ <elf-symbol name='d_instantiate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60f32d16'/>
+ <elf-symbol name='d_make_root' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7991797'/>
+ <elf-symbol name='datagram_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6610db9'/>
+ <elf-symbol name='deactivate_locked_super' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe61afd49'/>
+ <elf-symbol name='del_gendisk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6de9227'/>
+ <elf-symbol name='del_timer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa4008af'/>
+ <elf-symbol name='del_timer_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf15e728e'/>
+ <elf-symbol name='delayed_work_timer_fn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x253af43d'/>
+ <elf-symbol name='dentry_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0bb4f62'/>
+ <elf-symbol name='des_ekey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37974064'/>
+ <elf-symbol name='destroy_workqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c03d20c'/>
+ <elf-symbol name='dev_alloc_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa125cb1'/>
+ <elf-symbol name='dev_close' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x35de0e0c'/>
+ <elf-symbol name='dev_driver_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d456a81'/>
+ <elf-symbol name='dev_fwnode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x517207e6'/>
+ <elf-symbol name='dev_get_by_index_rcu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb624f97'/>
+ <elf-symbol name='dev_get_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7387f8f5'/>
+ <elf-symbol name='dev_get_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c68bb93'/>
+ <elf-symbol name='dev_get_stats' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbc1f8c78'/>
+ <elf-symbol name='dev_mc_sync_multiple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7aca28c'/>
+ <elf-symbol name='dev_mc_unsync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1966e5d'/>
+ <elf-symbol name='dev_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd386cf17'/>
+ <elf-symbol name='dev_pm_domain_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42b18a2e'/>
+ <elf-symbol name='dev_pm_domain_detach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab4ac5fb'/>
+ <elf-symbol name='dev_pm_opp_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7937111'/>
+ <elf-symbol name='dev_pm_opp_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc8937fa5'/>
+ <elf-symbol name='dev_pm_opp_find_freq_ceil' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x106e739b'/>
+ <elf-symbol name='dev_pm_opp_find_freq_exact' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4fd4da8d'/>
+ <elf-symbol name='dev_pm_opp_find_freq_floor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75fbc684'/>
+ <elf-symbol name='dev_pm_opp_get_opp_count' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb8459f1'/>
+ <elf-symbol name='dev_pm_opp_get_voltage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x13e7beef'/>
+ <elf-symbol name='dev_pm_opp_of_add_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9066f545'/>
+ <elf-symbol name='dev_pm_opp_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11acc99a'/>
+ <elf-symbol name='dev_pm_opp_register_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31756105'/>
+ <elf-symbol name='dev_pm_opp_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa7a745de'/>
+ <elf-symbol name='dev_pm_opp_remove_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31a1d38f'/>
+ <elf-symbol name='dev_pm_opp_set_supported_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d78d57c'/>
+ <elf-symbol name='dev_pm_opp_unregister_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa54e4b1f'/>
+ <elf-symbol name='dev_printk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe29a5111'/>
+ <elf-symbol name='dev_queue_xmit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8fc68c88'/>
+ <elf-symbol name='dev_set_mtu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaebd8f0'/>
+ <elf-symbol name='dev_set_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9525069'/>
+ <elf-symbol name='dev_uc_sync_multiple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x32736bf3'/>
+ <elf-symbol name='dev_uc_unsync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xace3f380'/>
+ <elf-symbol name='devfreq_add_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8087f863'/>
+ <elf-symbol name='devfreq_add_governor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d72e4d6'/>
+ <elf-symbol name='devfreq_cooling_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x704bf472'/>
+ <elf-symbol name='devfreq_interval_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf36ccca3'/>
+ <elf-symbol name='devfreq_monitor_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcfaf3840'/>
+ <elf-symbol name='devfreq_monitor_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a30f901'/>
+ <elf-symbol name='devfreq_monitor_stop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9bf2755f'/>
+ <elf-symbol name='devfreq_monitor_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc58104d'/>
+ <elf-symbol name='devfreq_recommended_opp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2ada00b1'/>
+ <elf-symbol name='devfreq_remove_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3270c804'/>
+ <elf-symbol name='devfreq_remove_governor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa466e56c'/>
+ <elf-symbol name='devfreq_resume_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f29a9b2'/>
+ <elf-symbol name='devfreq_suspend_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x947ab5bb'/>
+ <elf-symbol name='device_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x124a8a2e'/>
+ <elf-symbol name='device_add_disk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8afa957c'/>
+ <elf-symbol name='device_connection_find_match' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23097b5'/>
+ <elf-symbol name='device_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ab8124e'/>
+ <elf-symbol name='device_create_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdbb41e4d'/>
+ <elf-symbol name='device_create_with_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x372cf179'/>
+ <elf-symbol name='device_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f9269b1'/>
+ <elf-symbol name='device_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87f89ba3'/>
+ <elf-symbol name='device_find_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f6721b9'/>
+ <elf-symbol name='device_for_each_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf68868b7'/>
+ <elf-symbol name='device_get_named_child_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2fb5906c'/>
+ <elf-symbol name='device_init_wakeup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf48c436'/>
+ <elf-symbol name='device_initialize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41fb4c91'/>
+ <elf-symbol name='device_link_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f0410b'/>
+ <elf-symbol name='device_link_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x274a8878'/>
+ <elf-symbol name='device_online' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb423090d'/>
+ <elf-symbol name='device_property_present' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf2685729'/>
+ <elf-symbol name='device_property_read_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x35a86599'/>
+ <elf-symbol name='device_property_read_u16_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x39857927'/>
+ <elf-symbol name='device_property_read_u32_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xacaae263'/>
+ <elf-symbol name='device_property_read_u8_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4bc84a13'/>
+ <elf-symbol name='device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa753c10f'/>
+ <elf-symbol name='device_remove_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74ebae24'/>
+ <elf-symbol name='device_set_wakeup_capable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf1bc82d'/>
+ <elf-symbol name='device_show_int' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe5fb6723'/>
+ <elf-symbol name='device_store_int' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61fb611'/>
+ <elf-symbol name='device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0401b5'/>
+ <elf-symbol name='device_wakeup_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x405dfaac'/>
+ <elf-symbol name='device_wakeup_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x699d6d7'/>
+ <elf-symbol name='devm_add_action' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x651c5c3f'/>
+ <elf-symbol name='devm_backlight_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdcefec13'/>
+ <elf-symbol name='devm_clk_bulk_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b0678e5'/>
+ <elf-symbol name='devm_clk_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca2fe738'/>
+ <elf-symbol name='devm_clk_hw_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x929ea9ec'/>
+ <elf-symbol name='devm_clk_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa3b185ef'/>
+ <elf-symbol name='devm_clk_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc135d1d'/>
+ <elf-symbol name='devm_devfreq_add_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1262e453'/>
+ <elf-symbol name='devm_extcon_dev_allocate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47aff9e7'/>
+ <elf-symbol name='devm_extcon_dev_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfdbc9e27'/>
+ <elf-symbol name='devm_extcon_dev_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5303db2b'/>
+ <elf-symbol name='devm_extcon_register_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee56137c'/>
+ <elf-symbol name='devm_free_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c5c6c1a'/>
+ <elf-symbol name='devm_gpio_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc249e8c9'/>
+ <elf-symbol name='devm_gpio_request_one' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5592bfc3'/>
+ <elf-symbol name='devm_gpiod_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfce441c9'/>
+ <elf-symbol name='devm_gpiod_get_optional' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x49b616be'/>
+ <elf-symbol name='devm_iio_channel_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x30595f6e'/>
+ <elf-symbol name='devm_iio_device_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4cdf197'/>
+ <elf-symbol name='devm_input_allocate_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76cd308'/>
+ <elf-symbol name='devm_ioremap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x95621252'/>
+ <elf-symbol name='devm_ioremap_nocache' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42370c4e'/>
+ <elf-symbol name='devm_ioremap_resource' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0151ef'/>
+ <elf-symbol name='devm_ioremap_wc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x127eca14'/>
+ <elf-symbol name='devm_iounmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa379e47a'/>
+ <elf-symbol name='devm_kasprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x284e3b55'/>
+ <elf-symbol name='devm_kfree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0a28e9c'/>
+ <elf-symbol name='devm_kmalloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x16d47904'/>
+ <elf-symbol name='devm_kmemdup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f0929f5'/>
+ <elf-symbol name='devm_kstrdup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf415a43'/>
+ <elf-symbol name='devm_nvmem_device_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe3e89f0'/>
+ <elf-symbol name='devm_nvmem_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfc41e8a3'/>
+ <elf-symbol name='devm_of_clk_add_hw_provider' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1263e2f4'/>
+ <elf-symbol name='devm_of_led_classdev_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x467cfcfc'/>
+ <elf-symbol name='devm_of_platform_populate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31a46d21'/>
+ <elf-symbol name='devm_of_pwm_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f82b18'/>
+ <elf-symbol name='devm_phy_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76a9fd5'/>
+ <elf-symbol name='devm_phy_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0a7ebdd'/>
+ <elf-symbol name='devm_pinctrl_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1904c1f9'/>
+ <elf-symbol name='devm_pinctrl_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72ca4dd3'/>
+ <elf-symbol name='devm_pinctrl_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa3e56a8f'/>
+ <elf-symbol name='devm_power_supply_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x988f7a04'/>
+ <elf-symbol name='devm_pwm_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8235d135'/>
+ <elf-symbol name='devm_regmap_add_irq_chip' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25f02bef'/>
+ <elf-symbol name='devm_regmap_del_irq_chip' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd51d6df6'/>
+ <elf-symbol name='devm_regmap_field_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x83e1ed22'/>
+ <elf-symbol name='devm_regulator_bulk_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xabb68ea7'/>
+ <elf-symbol name='devm_regulator_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa1b8d07'/>
+ <elf-symbol name='devm_regulator_get_optional' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa4be17df'/>
+ <elf-symbol name='devm_regulator_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb31fe0b7'/>
+ <elf-symbol name='devm_regulator_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72b504ad'/>
+ <elf-symbol name='devm_regulator_register_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74621a1a'/>
+ <elf-symbol name='devm_request_any_context_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81edb1e4'/>
+ <elf-symbol name='devm_request_threaded_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37a3f83c'/>
+ <elf-symbol name='devm_reset_control_array_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b2d8d1'/>
+ <elf-symbol name='devm_reset_controller_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a427ec7'/>
+ <elf-symbol name='devm_rtc_allocate_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6a458cb'/>
+ <elf-symbol name='devm_rtc_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x43d2d5ae'/>
+ <elf-symbol name='devm_snd_soc_register_card' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd67a8fa9'/>
+ <elf-symbol name='devm_snd_soc_register_component' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd16dc1ce'/>
+ <elf-symbol name='devm_thermal_of_virtual_sensor_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86d7e3b'/>
+ <elf-symbol name='devm_thermal_zone_of_sensor_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa896ce30'/>
+ <elf-symbol name='devm_usb_get_phy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee90d30'/>
+ <elf-symbol name='devm_usb_get_phy_by_phandle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b8992e5'/>
+ <elf-symbol name='devres_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71ca2ed7'/>
+ <elf-symbol name='devres_alloc_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd248c830'/>
+ <elf-symbol name='devres_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe93e49c3'/>
+ <elf-symbol name='devres_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d3c33f5'/>
+ <elf-symbol name='dget_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c33e3ad'/>
+ <elf-symbol name='disable_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ce4ca6f'/>
+ <elf-symbol name='disable_irq_nosync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27bbf221'/>
+ <elf-symbol name='disable_percpu_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf21e1f9b'/>
+ <elf-symbol name='divider_get_val' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e798ffb'/>
+ <elf-symbol name='divider_recalc_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadd33bf'/>
+ <elf-symbol name='divider_ro_round_rate_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c91080'/>
+ <elf-symbol name='divider_round_rate_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b6e7c95'/>
+ <elf-symbol name='dm_register_target' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3997eded'/>
+ <elf-symbol name='dm_unregister_target' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x36990c20'/>
+ <elf-symbol name='dma_alloc_from_dev_coherent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1892d60'/>
+ <elf-symbol name='dma_async_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5a409ddd'/>
+ <elf-symbol name='dma_async_tx_descriptor_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5e5b864'/>
+ <elf-symbol name='dma_buf_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12695923'/>
+ <elf-symbol name='dma_buf_begin_cpu_access' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf2407a4d'/>
+ <elf-symbol name='dma_buf_begin_cpu_access_partial' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe2f13de5'/>
+ <elf-symbol name='dma_buf_detach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb961b9fd'/>
+ <elf-symbol name='dma_buf_end_cpu_access' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41e28ccb'/>
+ <elf-symbol name='dma_buf_end_cpu_access_partial' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4d70f75'/>
+ <elf-symbol name='dma_buf_export' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f346eeb'/>
+ <elf-symbol name='dma_buf_fd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb7a63a3'/>
+ <elf-symbol name='dma_buf_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca383aa2'/>
+ <elf-symbol name='dma_buf_get_flags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x336e5d89'/>
+ <elf-symbol name='dma_buf_get_uuid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa05b2634'/>
+ <elf-symbol name='dma_buf_kmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd256e4e3'/>
+ <elf-symbol name='dma_buf_kunmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4623df64'/>
+ <elf-symbol name='dma_buf_map_attachment' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9586c1da'/>
+ <elf-symbol name='dma_buf_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x26a7872a'/>
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+ <elf-symbol name='dma_release_declared_memory' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb94a90d0'/>
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+ <elf-symbol name='do_SAK' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92cb80b7'/>
+ <elf-symbol name='do_exit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x952664c5'/>
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+ <elf-symbol name='down' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6626afca'/>
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+ <elf-symbol name='dput' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5659275'/>
+ <elf-symbol name='drain_workqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa38602cd'/>
+ <elf-symbol name='driver_find_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae25b1f4'/>
+ <elf-symbol name='driver_for_each_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x95943799'/>
+ <elf-symbol name='driver_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71a6376e'/>
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+ <elf-symbol name='drm_add_edid_modes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98d712e5'/>
+ <elf-symbol name='drm_add_modes_noedid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf541cd'/>
+ <elf-symbol name='drm_atomic_commit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x122b5eb9'/>
+ <elf-symbol name='drm_atomic_get_connector_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x538f6b5a'/>
+ <elf-symbol name='drm_atomic_get_crtc_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4287c672'/>
+ <elf-symbol name='drm_atomic_get_plane_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42d18d2b'/>
+ <elf-symbol name='drm_atomic_get_private_obj_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2068299b'/>
+ <elf-symbol name='drm_atomic_helper_check' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7403e721'/>
+ <elf-symbol name='drm_atomic_helper_cleanup_planes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5e81682'/>
+ <elf-symbol name='drm_atomic_helper_commit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5afadeb5'/>
+ <elf-symbol name='drm_atomic_helper_commit_duplicated_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9c6d491'/>
+ <elf-symbol name='drm_atomic_helper_commit_hw_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x884da33f'/>
+ <elf-symbol name='drm_atomic_helper_commit_modeset_disables' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x39ee515f'/>
+ <elf-symbol name='drm_atomic_helper_commit_modeset_enables' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe44bb998'/>
+ <elf-symbol name='drm_atomic_helper_commit_planes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8dd2353'/>
+ <elf-symbol name='drm_atomic_helper_connector_destroy_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x29cd644f'/>
+ <elf-symbol name='drm_atomic_helper_connector_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc74e9617'/>
+ <elf-symbol name='drm_atomic_helper_connector_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x397e49a4'/>
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+ <elf-symbol name='drm_atomic_helper_disable_plane' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x670fe750'/>
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+ <elf-symbol name='drm_atomic_helper_page_flip' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x738aa75e'/>
+ <elf-symbol name='drm_atomic_helper_plane_destroy_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8198d905'/>
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+ <elf-symbol name='drm_atomic_helper_prepare_planes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd397a69e'/>
+ <elf-symbol name='drm_atomic_helper_set_config' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4a756567'/>
+ <elf-symbol name='drm_atomic_helper_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xafd715f6'/>
+ <elf-symbol name='drm_atomic_helper_swap_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37596b38'/>
+ <elf-symbol name='drm_atomic_helper_update_legacy_modeset_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d9da43c'/>
+ <elf-symbol name='drm_atomic_helper_update_plane' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4800f13d'/>
+ <elf-symbol name='drm_atomic_helper_wait_for_fences' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d5bcb73'/>
+ <elf-symbol name='drm_atomic_helper_wait_for_vblanks' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x381e160f'/>
+ <elf-symbol name='drm_atomic_private_obj_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x94da2b3e'/>
+ <elf-symbol name='drm_atomic_set_crtc_for_connector' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x89d85a73'/>
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+ <elf-symbol name='drm_atomic_set_mode_for_crtc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1075acc5'/>
+ <elf-symbol name='drm_atomic_state_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92de44cc'/>
+ <elf-symbol name='drm_atomic_state_clear' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad0f5f5b'/>
+ <elf-symbol name='drm_atomic_state_default_clear' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb762062'/>
+ <elf-symbol name='drm_atomic_state_default_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x487b0d43'/>
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+ <elf-symbol name='drm_bridge_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3d79d24'/>
+ <elf-symbol name='drm_bridge_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb49fe7c'/>
+ <elf-symbol name='drm_bridge_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0526b4c'/>
+ <elf-symbol name='drm_bridge_mode_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xedd1a960'/>
+ <elf-symbol name='drm_bridge_post_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x575a8513'/>
+ <elf-symbol name='drm_bridge_pre_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66900a0d'/>
+ <elf-symbol name='drm_compat_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97293678'/>
+ <elf-symbol name='drm_connector_attach_edid_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7607acc5'/>
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+ <elf-symbol name='drm_connector_cleanup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x83e2188a'/>
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+ <elf-symbol name='drm_connector_list_iter_begin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x204be6e1'/>
+ <elf-symbol name='drm_connector_list_iter_end' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3d7fcf1'/>
+ <elf-symbol name='drm_connector_list_iter_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ac9d894'/>
+ <elf-symbol name='drm_connector_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6aa2f0d0'/>
+ <elf-symbol name='drm_connector_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41c6c40b'/>
+ <elf-symbol name='drm_connector_update_edid_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc0a3ab2'/>
+ <elf-symbol name='drm_crtc_cleanup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2568011'/>
+ <elf-symbol name='drm_crtc_handle_vblank' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa2026bd'/>
+ <elf-symbol name='drm_crtc_init_with_planes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4736a96'/>
+ <elf-symbol name='drm_crtc_send_vblank_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdbec589f'/>
+ <elf-symbol name='drm_crtc_vblank_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65a596e0'/>
+ <elf-symbol name='drm_crtc_vblank_off' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ae1f43'/>
+ <elf-symbol name='drm_crtc_vblank_on' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe8c171c6'/>
+ <elf-symbol name='drm_crtc_vblank_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbdecab6b'/>
+ <elf-symbol name='drm_crtc_vblank_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd1c7b522'/>
+ <elf-symbol name='drm_crtc_wait_one_vblank' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b46d79'/>
+ <elf-symbol name='drm_cvt_mode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12a5ca65'/>
+ <elf-symbol name='drm_dbg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2109a78c'/>
+ <elf-symbol name='drm_detect_hdmi_monitor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8ad5d01'/>
+ <elf-symbol name='drm_detect_monitor_audio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66551bc7'/>
+ <elf-symbol name='drm_dev_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d6ee26b'/>
+ <elf-symbol name='drm_dev_dbg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51ad10d1'/>
+ <elf-symbol name='drm_dev_printk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93b8ebd8'/>
+ <elf-symbol name='drm_dev_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47adfa7e'/>
+ <elf-symbol name='drm_dev_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9c56bc8'/>
+ <elf-symbol name='drm_dev_set_unique' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadef5abe'/>
+ <elf-symbol name='drm_dev_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18e149ee'/>
+ <elf-symbol name='drm_do_get_edid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe930a459'/>
+ <elf-symbol name='drm_dp_atomic_find_vcpi_slots' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b8ddea0'/>
+ <elf-symbol name='drm_dp_atomic_release_vcpi_slots' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3017347e'/>
+ <elf-symbol name='drm_dp_aux_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ec40826'/>
+ <elf-symbol name='drm_dp_aux_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61012619'/>
+ <elf-symbol name='drm_dp_bw_code_to_link_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73011db0'/>
+ <elf-symbol name='drm_dp_calc_pbn_mode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa47826e4'/>
+ <elf-symbol name='drm_dp_channel_eq_ok' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xedcf81ce'/>
+ <elf-symbol name='drm_dp_check_act_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe18082cd'/>
+ <elf-symbol name='drm_dp_clock_recovery_ok' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d701329'/>
+ <elf-symbol name='drm_dp_dpcd_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd718c47'/>
+ <elf-symbol name='drm_dp_dpcd_read_link_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5fa7415c'/>
+ <elf-symbol name='drm_dp_dpcd_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6576760a'/>
+ <elf-symbol name='drm_dp_find_vcpi_slots' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9d5757'/>
+ <elf-symbol name='drm_dp_get_adjust_request_pre_emphasis' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x582f248e'/>
+ <elf-symbol name='drm_dp_get_adjust_request_voltage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5c99a79'/>
+ <elf-symbol name='drm_dp_link_configure' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa960aa02'/>
+ <elf-symbol name='drm_dp_link_power_down' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15dafb14'/>
+ <elf-symbol name='drm_dp_link_power_up' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x237eacc8'/>
+ <elf-symbol name='drm_dp_link_rate_to_bw_code' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x26815dbc'/>
+ <elf-symbol name='drm_dp_link_train_channel_eq_delay' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48b62a57'/>
+ <elf-symbol name='drm_dp_link_train_clock_recovery_delay' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6ff9496'/>
+ <elf-symbol name='drm_dp_mst_allocate_vcpi' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0fa73ff'/>
+ <elf-symbol name='drm_dp_mst_deallocate_vcpi' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28b1cd8a'/>
+ <elf-symbol name='drm_dp_mst_detect_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x928d0715'/>
+ <elf-symbol name='drm_dp_mst_get_edid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x43ea7c0b'/>
+ <elf-symbol name='drm_dp_mst_hpd_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc8a8b24'/>
+ <elf-symbol name='drm_dp_mst_reset_vcpi_slots' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x246c611c'/>
+ <elf-symbol name='drm_dp_mst_topology_mgr_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6732ec2e'/>
+ <elf-symbol name='drm_dp_mst_topology_mgr_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd4514bbb'/>
+ <elf-symbol name='drm_dp_mst_topology_mgr_set_mst' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4c7b262'/>
+ <elf-symbol name='drm_dp_send_power_updown_phy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x39f82188'/>
+ <elf-symbol name='drm_dp_update_payload_part1' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53c06af8'/>
+ <elf-symbol name='drm_dp_update_payload_part2' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf02c1b64'/>
+ <elf-symbol name='drm_edid_duplicate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47f985aa'/>
+ <elf-symbol name='drm_edid_is_valid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f88521'/>
+ <elf-symbol name='drm_encoder_cleanup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xafd739cb'/>
+ <elf-symbol name='drm_encoder_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81bf525e'/>
+ <elf-symbol name='drm_err' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1dd71f7a'/>
+ <elf-symbol name='drm_event_reserve_init_locked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77b1ec13'/>
+ <elf-symbol name='drm_format_horz_chroma_subsampling' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc69fcac'/>
+ <elf-symbol name='drm_format_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd04a50a'/>
+ <elf-symbol name='drm_format_num_planes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x985f2712'/>
+ <elf-symbol name='drm_format_plane_cpp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd14f4ea7'/>
+ <elf-symbol name='drm_format_vert_chroma_subsampling' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x46eabfbe'/>
+ <elf-symbol name='drm_framebuffer_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa31fde91'/>
+ <elf-symbol name='drm_framebuffer_lookup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f525cd8'/>
+ <elf-symbol name='drm_framebuffer_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67e254dd'/>
+ <elf-symbol name='drm_framebuffer_unregister_private' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbed05812'/>
+ <elf-symbol name='drm_gem_create_mmap_offset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7afb6da'/>
+ <elf-symbol name='drm_gem_dmabuf_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xafcd91c3'/>
+ <elf-symbol name='drm_gem_dmabuf_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e3182a9'/>
+ <elf-symbol name='drm_gem_dmabuf_vmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5399a277'/>
+ <elf-symbol name='drm_gem_dmabuf_vunmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x290431e5'/>
+ <elf-symbol name='drm_gem_fb_create_handle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc81533d'/>
+ <elf-symbol name='drm_gem_fb_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd84ee36'/>
+ <elf-symbol name='drm_gem_fb_get_obj' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x551ea1c3'/>
+ <elf-symbol name='drm_gem_free_mmap_offset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1fc711ed'/>
+ <elf-symbol name='drm_gem_get_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaedfb2f4'/>
+ <elf-symbol name='drm_gem_handle_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11c6ea45'/>
+ <elf-symbol name='drm_gem_map_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97e019de'/>
+ <elf-symbol name='drm_gem_map_detach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdec9f1ba'/>
+ <elf-symbol name='drm_gem_map_dma_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xebe570da'/>
+ <elf-symbol name='drm_gem_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec08ffe9'/>
+ <elf-symbol name='drm_gem_mmap_obj' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b3b2efb'/>
+ <elf-symbol name='drm_gem_object_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcdb82187'/>
+ <elf-symbol name='drm_gem_object_lookup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f746431'/>
+ <elf-symbol name='drm_gem_object_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1934d2f5'/>
+ <elf-symbol name='drm_gem_object_put_unlocked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f034d6f'/>
+ <elf-symbol name='drm_gem_object_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa90393b1'/>
+ <elf-symbol name='drm_gem_prime_export' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9ef92ed'/>
+ <elf-symbol name='drm_gem_prime_fd_to_handle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5718499d'/>
+ <elf-symbol name='drm_gem_prime_handle_to_fd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6ae7086'/>
+ <elf-symbol name='drm_gem_prime_import' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd95e505'/>
+ <elf-symbol name='drm_gem_prime_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70d284a2'/>
+ <elf-symbol name='drm_gem_private_object_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xccfcab5c'/>
+ <elf-symbol name='drm_gem_put_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0cec6f8'/>
+ <elf-symbol name='drm_gem_unmap_dma_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e1a82fa'/>
+ <elf-symbol name='drm_gem_vm_close' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1702792'/>
+ <elf-symbol name='drm_gem_vm_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x80427f91'/>
+ <elf-symbol name='drm_get_connector_status_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd60df2'/>
+ <elf-symbol name='drm_get_edid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88803986'/>
+ <elf-symbol name='drm_global_item_ref' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d7318dc'/>
+ <elf-symbol name='drm_global_item_unref' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5540008'/>
+ <elf-symbol name='drm_helper_hpd_irq_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x868eb998'/>
+ <elf-symbol name='drm_helper_mode_fill_fb_struct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb64aac89'/>
+ <elf-symbol name='drm_helper_probe_single_connector_modes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7fa0437d'/>
+ <elf-symbol name='drm_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48f9a627'/>
+ <elf-symbol name='drm_irq_install' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5e907b1'/>
+ <elf-symbol name='drm_irq_uninstall' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x277cbf1c'/>
+ <elf-symbol name='drm_kms_helper_hotplug_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a82c49b'/>
+ <elf-symbol name='drm_kms_helper_poll_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd821c5e7'/>
+ <elf-symbol name='drm_kms_helper_poll_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab1c7f5a'/>
+ <elf-symbol name='drm_kms_helper_poll_fini' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68ceb862'/>
+ <elf-symbol name='drm_kms_helper_poll_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9f732e2'/>
+ <elf-symbol name='drm_match_cea_mode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa04321fc'/>
+ <elf-symbol name='drm_mm_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b982195'/>
+ <elf-symbol name='drm_mm_insert_node_in_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6078326d'/>
+ <elf-symbol name='drm_mm_remove_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c287154'/>
+ <elf-symbol name='drm_mm_takedown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc307a10c'/>
+ <elf-symbol name='drm_mode_config_cleanup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6fe22b7d'/>
+ <elf-symbol name='drm_mode_config_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x494bbf9b'/>
+ <elf-symbol name='drm_mode_config_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb915f02'/>
+ <elf-symbol name='drm_mode_convert_umode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x828aca96'/>
+ <elf-symbol name='drm_mode_copy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa751721a'/>
+ <elf-symbol name='drm_mode_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6026757'/>
+ <elf-symbol name='drm_mode_create_colorspace_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf769e6b'/>
+ <elf-symbol name='drm_mode_debug_printmodeline' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x210b9b62'/>
+ <elf-symbol name='drm_mode_duplicate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x766cc6ff'/>
+ <elf-symbol name='drm_mode_equal' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd94355e'/>
+ <elf-symbol name='drm_mode_object_find' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdfef339a'/>
+ <elf-symbol name='drm_mode_object_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3846c88'/>
+ <elf-symbol name='drm_mode_object_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5fe7b4cc'/>
+ <elf-symbol name='drm_mode_parse_command_line_for_connector' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa32cc4a1'/>
+ <elf-symbol name='drm_mode_probed_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x603d1c70'/>
+ <elf-symbol name='drm_mode_set_crtcinfo' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20955e91'/>
+ <elf-symbol name='drm_mode_set_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x26bc6804'/>
+ <elf-symbol name='drm_mode_vrefresh' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbceeff2a'/>
+ <elf-symbol name='drm_modeset_acquire_fini' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb189ecc5'/>
+ <elf-symbol name='drm_modeset_acquire_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1224c42'/>
+ <elf-symbol name='drm_modeset_backoff' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb9a7778'/>
+ <elf-symbol name='drm_modeset_drop_locks' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x64e3117a'/>
+ <elf-symbol name='drm_modeset_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd617977c'/>
+ <elf-symbol name='drm_modeset_lock_all' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed586a8e'/>
+ <elf-symbol name='drm_modeset_lock_all_ctx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xded6f518'/>
+ <elf-symbol name='drm_modeset_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e73306d'/>
+ <elf-symbol name='drm_modeset_unlock_all' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25123dbc'/>
+ <elf-symbol name='drm_object_attach_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4a2fa0ee'/>
+ <elf-symbol name='drm_object_property_set_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1f02744'/>
+ <elf-symbol name='drm_of_component_match_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbfbce947'/>
+ <elf-symbol name='drm_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa19ab60a'/>
+ <elf-symbol name='drm_panel_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b4c0a1e'/>
+ <elf-symbol name='drm_panel_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd89f2e82'/>
+ <elf-symbol name='drm_panel_notifier_call_chain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14c1b4c3'/>
+ <elf-symbol name='drm_panel_notifier_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d9b1adb'/>
+ <elf-symbol name='drm_panel_notifier_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x832c9423'/>
+ <elf-symbol name='drm_panel_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdfa072a3'/>
+ <elf-symbol name='drm_plane_cleanup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc8716fd9'/>
+ <elf-symbol name='drm_plane_create_rotation_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8728d6a9'/>
+ <elf-symbol name='drm_plane_helper_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7697c7f2'/>
+ <elf-symbol name='drm_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4c3e24aa'/>
+ <elf-symbol name='drm_prime_gem_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd385dc27'/>
+ <elf-symbol name='drm_prime_pages_to_sg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbacf8185'/>
+ <elf-symbol name='drm_property_blob_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6656395d'/>
+ <elf-symbol name='drm_property_blob_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed8c8de7'/>
+ <elf-symbol name='drm_property_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa01bee4c'/>
+ <elf-symbol name='drm_property_create_bitmask' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76237564'/>
+ <elf-symbol name='drm_property_create_blob' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x21129045'/>
+ <elf-symbol name='drm_property_create_enum' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d00ffba'/>
+ <elf-symbol name='drm_property_create_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba8658e8'/>
+ <elf-symbol name='drm_property_lookup_blob' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7adfda95'/>
+ <elf-symbol name='drm_put_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1788830a'/>
+ <elf-symbol name='drm_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x184ff394'/>
+ <elf-symbol name='drm_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a3b42c7'/>
+ <elf-symbol name='drm_rotation_simplify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf666902'/>
+ <elf-symbol name='drm_send_event_locked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68e0419e'/>
+ <elf-symbol name='drm_set_preferred_mode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75fbbafe'/>
+ <elf-symbol name='drm_universal_plane_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc28fb836'/>
+ <elf-symbol name='drm_vblank_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x142c0f6a'/>
+ <elf-symbol name='drm_wait_one_vblank' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x465c8069'/>
+ <elf-symbol name='dst_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd1a6dfed'/>
+ <elf-symbol name='dump_stack' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b2dc060'/>
+ <elf-symbol name='edac_device_add_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5742c5d2'/>
+ <elf-symbol name='edac_device_alloc_ctl_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a307804'/>
+ <elf-symbol name='edac_device_alloc_index' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e3ff83a'/>
+ <elf-symbol name='edac_device_del_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe70b85ca'/>
+ <elf-symbol name='edac_device_free_ctl_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba0c0b7e'/>
+ <elf-symbol name='edac_device_handle_ce' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42a19007'/>
+ <elf-symbol name='edac_device_handle_ue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5a627d17'/>
+ <elf-symbol name='em_register_perf_domain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb01230d8'/>
+ <elf-symbol name='enable_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfcec0987'/>
+ <elf-symbol name='enable_percpu_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x335c570f'/>
+ <elf-symbol name='eth_commit_mac_addr_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1fec7a'/>
+ <elf-symbol name='eth_mac_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e91aaa4'/>
+ <elf-symbol name='eth_prepare_mac_addr_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b9b9340'/>
+ <elf-symbol name='eth_type_trans' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6bff7cbd'/>
+ <elf-symbol name='eth_validate_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x96ef45b4'/>
+ <elf-symbol name='ether_setup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeeca67c5'/>
+ <elf-symbol name='ethtool_op_get_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x78f6a6b'/>
+ <elf-symbol name='ethtool_op_get_ts_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaab05006'/>
+ <elf-symbol name='event_triggers_call' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4fdbe50e'/>
+ <elf-symbol name='extcon_find_edev_by_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc95bb5ff'/>
+ <elf-symbol name='extcon_get_edev_by_phandle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd40dd003'/>
+ <elf-symbol name='extcon_get_edev_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd81478d6'/>
+ <elf-symbol name='extcon_get_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c4e4f9d'/>
+ <elf-symbol name='extcon_get_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53db5ca8'/>
+ <elf-symbol name='extcon_register_blocking_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4bef14ba'/>
+ <elf-symbol name='extcon_register_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe702236f'/>
+ <elf-symbol name='extcon_set_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ebde771'/>
+ <elf-symbol name='extcon_set_property_capability' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2215264c'/>
+ <elf-symbol name='extcon_set_state_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69b46160'/>
+ <elf-symbol name='extcon_unregister_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd34600d'/>
+ <elf-symbol name='fast_smmu_put_dma_cookie' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12755c5c'/>
+ <elf-symbol name='fasync_helper' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf305773'/>
+ <elf-symbol name='fd_install' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7597fc83'/>
+ <elf-symbol name='fget' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x57709d57'/>
+ <elf-symbol name='filemap_fault' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf73ae7'/>
+ <elf-symbol name='filemap_map_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c61c627'/>
+ <elf-symbol name='filemap_page_mkwrite' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87b1d5cc'/>
+ <elf-symbol name='filp_close' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ed958a4'/>
+ <elf-symbol name='filp_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba94b5cd'/>
+ <elf-symbol name='find_get_pid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x323695c5'/>
+ <elf-symbol name='find_last_bit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6a68816'/>
+ <elf-symbol name='find_next_bit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0a3d105'/>
+ <elf-symbol name='find_next_zero_bit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x479c3c86'/>
+ <elf-symbol name='find_snd_usb_substream' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44fa9f7a'/>
+ <elf-symbol name='find_vma' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbdd9fc67'/>
+ <elf-symbol name='finish_wait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92540fbf'/>
+ <elf-symbol name='firmware_request_nowarn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79b95a4f'/>
+ <elf-symbol name='fl6_sock_lookup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0d64cd6'/>
+ <elf-symbol name='fl6_update_dst' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x293a9ef6'/>
+ <elf-symbol name='flex_array_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x561e2541'/>
+ <elf-symbol name='flex_array_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb678c3cf'/>
+ <elf-symbol name='flex_array_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91826c9c'/>
+ <elf-symbol name='flex_array_prealloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe5a1d050'/>
+ <elf-symbol name='flex_array_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x19a4c6ec'/>
+ <elf-symbol name='flush_cache_all' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68733f91'/>
+ <elf-symbol name='flush_dcache_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a1e2be5'/>
+ <elf-symbol name='flush_delayed_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x45ffb39d'/>
+ <elf-symbol name='flush_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa7ab6d28'/>
+ <elf-symbol name='flush_workqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42160169'/>
+ <elf-symbol name='fput' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4523eb9'/>
+ <elf-symbol name='free_io_pgtable_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79bcc7e5'/>
+ <elf-symbol name='free_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1514a3b'/>
+ <elf-symbol name='free_netdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x340620e0'/>
+ <elf-symbol name='free_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4302d0eb'/>
+ <elf-symbol name='free_pages_exact' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb44339a'/>
+ <elf-symbol name='free_percpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9ec4e21'/>
+ <elf-symbol name='free_percpu_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbc6bec66'/>
+ <elf-symbol name='freezing_slow_path' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82b6f4cd'/>
+ <elf-symbol name='fsnotify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe60f76d6'/>
+ <elf-symbol name='fsstack_copy_attr_all' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x22cd57a2'/>
+ <elf-symbol name='full_name_hash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x800fb92b'/>
+ <elf-symbol name='fwnode_property_present' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f5eb755'/>
+ <elf-symbol name='fwnode_property_read_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10e490f'/>
+ <elf-symbol name='fwnode_property_read_u32_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2199f4aa'/>
+ <elf-symbol name='gcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea124bd1'/>
+ <elf-symbol name='gen_pool_add_virt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10ea1b23'/>
+ <elf-symbol name='gen_pool_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec95b3bf'/>
+ <elf-symbol name='gen_pool_best_fit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb737b185'/>
+ <elf-symbol name='gen_pool_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xced0f4d4'/>
+ <elf-symbol name='gen_pool_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c224cda'/>
+ <elf-symbol name='gen_pool_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa071cf46'/>
+ <elf-symbol name='gen_pool_set_algo' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x96e5d30f'/>
+ <elf-symbol name='gen_pool_virt_to_phys' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d0ba682'/>
+ <elf-symbol name='generic_device_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9db4a373'/>
+ <elf-symbol name='generic_file_llseek' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc4f6e19'/>
+ <elf-symbol name='generic_file_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x160df4dc'/>
+ <elf-symbol name='generic_file_read_iter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69f2b4d3'/>
+ <elf-symbol name='generic_file_splice_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf510b9a'/>
+ <elf-symbol name='generic_fillattr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40eea088'/>
+ <elf-symbol name='generic_handle_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ceaf0d5'/>
+ <elf-symbol name='generic_read_dir' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa7e822d'/>
+ <elf-symbol name='generic_shutdown_super' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8fffd856'/>
+ <elf-symbol name='genl_register_family' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48b9986a'/>
+ <elf-symbol name='genl_unregister_family' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xce894839'/>
+ <elf-symbol name='genlmsg_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd212d22'/>
+ <elf-symbol name='get_cpu_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x80e403b6'/>
+ <elf-symbol name='get_current_napi_context' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x78670406'/>
+ <elf-symbol name='get_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x887feee'/>
+ <elf-symbol name='get_next_event_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23723f03'/>
+ <elf-symbol name='get_option' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0e10781'/>
+ <elf-symbol name='get_pid_task' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ac43500'/>
+ <elf-symbol name='get_random_bytes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79aa04a2'/>
+ <elf-symbol name='get_random_u32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd36dc10c'/>
+ <elf-symbol name='get_task_mm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe16d509e'/>
+ <elf-symbol name='get_task_pid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85b3a0b3'/>
+ <elf-symbol name='get_unmapped_area' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa67c9a7c'/>
+ <elf-symbol name='get_unused_fd_flags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa843805a'/>
+ <elf-symbol name='get_user_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe54c1356'/>
+ <elf-symbol name='get_vm_area' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75b39d1f'/>
+ <elf-symbol name='get_zeroed_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9b388444'/>
+ <elf-symbol name='getboottime64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef464c28'/>
+ <elf-symbol name='gnss_allocate_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74d5f6c2'/>
+ <elf-symbol name='gnss_deregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4c7dd7cd'/>
+ <elf-symbol name='gnss_insert_raw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d92ada5'/>
+ <elf-symbol name='gnss_put_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb511c5b'/>
+ <elf-symbol name='gnss_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x960574d2'/>
+ <elf-symbol name='gpio_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe990052'/>
+ <elf-symbol name='gpio_free_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0d1656c'/>
+ <elf-symbol name='gpio_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47229b5c'/>
+ <elf-symbol name='gpio_request_one' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x403f9529'/>
+ <elf-symbol name='gpio_to_desc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ec00085'/>
+ <elf-symbol name='gpiochip_add_data_with_key' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbafe6309'/>
+ <elf-symbol name='gpiochip_add_pin_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31121f9b'/>
+ <elf-symbol name='gpiochip_generic_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e29eaae'/>
+ <elf-symbol name='gpiochip_generic_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28538405'/>
+ <elf-symbol name='gpiochip_get_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d866472'/>
+ <elf-symbol name='gpiochip_line_is_valid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34d74247'/>
+ <elf-symbol name='gpiochip_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b248e21'/>
+ <elf-symbol name='gpiochip_set_chained_irqchip' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc079398c'/>
+ <elf-symbol name='gpiod_direction_input' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3658d48a'/>
+ <elf-symbol name='gpiod_direction_output' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x57664bf2'/>
+ <elf-symbol name='gpiod_direction_output_raw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x310aa9c'/>
+ <elf-symbol name='gpiod_export' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdfda7032'/>
+ <elf-symbol name='gpiod_get_from_of_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x841e5e7'/>
+ <elf-symbol name='gpiod_get_raw_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a2ebdf8'/>
+ <elf-symbol name='gpiod_get_raw_value_cansleep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5fca886'/>
+ <elf-symbol name='gpiod_get_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8cab1dfd'/>
+ <elf-symbol name='gpiod_set_raw_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x504220e2'/>
+ <elf-symbol name='gpiod_set_raw_value_cansleep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd71091b9'/>
+ <elf-symbol name='gpiod_set_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc8e7b89c'/>
+ <elf-symbol name='gpiod_set_value_cansleep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7b24e5d'/>
+ <elf-symbol name='gpiod_to_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1cebc47f'/>
+ <elf-symbol name='gro_cells_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9f54ead7'/>
+ <elf-symbol name='gro_cells_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa7e5c47'/>
+ <elf-symbol name='gro_cells_receive' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x460525a7'/>
+ <elf-symbol name='handle_bad_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x209cef5a'/>
+ <elf-symbol name='handle_edge_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x237eb384'/>
+ <elf-symbol name='handle_level_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbbdf2453'/>
+ <elf-symbol name='handle_nested_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x549525ef'/>
+ <elf-symbol name='handle_simple_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3cf6bff'/>
+ <elf-symbol name='handle_sysrq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7647726c'/>
+ <elf-symbol name='hci_alloc_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7893273'/>
+ <elf-symbol name='hci_free_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9bc910f3'/>
+ <elf-symbol name='hci_recv_frame' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa1f5223f'/>
+ <elf-symbol name='hci_register_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23ab36e9'/>
+ <elf-symbol name='hci_unregister_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa95bebf6'/>
+ <elf-symbol name='hex2bin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2edbeaf7'/>
+ <elf-symbol name='hex_dump_to_buffer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe916dc6'/>
+ <elf-symbol name='hex_to_bin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11f7ed4c'/>
+ <elf-symbol name='hrtimer_active' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa16cffd1'/>
+ <elf-symbol name='hrtimer_cancel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd46f0d01'/>
+ <elf-symbol name='hrtimer_forward' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa988ce9b'/>
+ <elf-symbol name='hrtimer_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7cf15872'/>
+ <elf-symbol name='hrtimer_init_sleeper' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8739d645'/>
+ <elf-symbol name='hrtimer_start_range_ns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc38b7856'/>
+ <elf-symbol name='hrtimer_try_to_cancel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3094c67f'/>
+ <elf-symbol name='hvc_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf143b1b'/>
+ <elf-symbol name='hvc_instantiate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81237ca1'/>
+ <elf-symbol name='hvc_kick' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9833bc0c'/>
+ <elf-symbol name='hvc_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x394e6b67'/>
+ <elf-symbol name='hvc_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7cf99443'/>
+ <elf-symbol name='hwrng_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6cfb19d0'/>
+ <elf-symbol name='hwrng_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb605aeff'/>
+ <elf-symbol name='hwspin_lock_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe62ea5fc'/>
+ <elf-symbol name='hwspin_lock_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1bb90269'/>
+ <elf-symbol name='hwspin_lock_request_specific' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd631769a'/>
+ <elf-symbol name='hwspin_lock_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x918ab4d5'/>
+ <elf-symbol name='i2c_add_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27bbf3f7'/>
+ <elf-symbol name='i2c_del_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa4f50c7'/>
+ <elf-symbol name='i2c_del_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x171767b8'/>
+ <elf-symbol name='i2c_get_dma_safe_msg_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42041512'/>
+ <elf-symbol name='i2c_match_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x32bd18b'/>
+ <elf-symbol name='i2c_new_dummy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x543536a4'/>
+ <elf-symbol name='i2c_put_dma_safe_msg_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4dae16e4'/>
+ <elf-symbol name='i2c_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8e801e0'/>
+ <elf-symbol name='i2c_smbus_read_byte_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8202e37'/>
+ <elf-symbol name='i2c_smbus_write_byte_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf83e10df'/>
+ <elf-symbol name='i2c_transfer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd1b24b28'/>
+ <elf-symbol name='i2c_transfer_buffer_flags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44e71ee3'/>
+ <elf-symbol name='i2c_unregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcaca5fa'/>
+ <elf-symbol name='icmpv6_err_convert' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae316c11'/>
+ <elf-symbol name='ida_alloc_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa14ab2f3'/>
+ <elf-symbol name='ida_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadf4146a'/>
+ <elf-symbol name='idr_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d79ea60'/>
+ <elf-symbol name='idr_alloc_cyclic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf90a18eb'/>
+ <elf-symbol name='idr_alloc_u32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ae189a4'/>
+ <elf-symbol name='idr_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3d85d98'/>
+ <elf-symbol name='idr_find' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ad03057'/>
+ <elf-symbol name='idr_for_each' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x672fff92'/>
+ <elf-symbol name='idr_get_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9df03b9d'/>
+ <elf-symbol name='idr_preload' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84ffea8b'/>
+ <elf-symbol name='idr_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe6e59fa'/>
+ <elf-symbol name='idr_replace' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa89857fa'/>
+ <elf-symbol name='ieee80211_channel_to_frequency' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe8663ae6'/>
+ <elf-symbol name='ieee80211_frequency_to_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c64fbd'/>
+ <elf-symbol name='ieee80211_get_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88213f8a'/>
+ <elf-symbol name='ieee80211_hdrlen' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ef39823'/>
+ <elf-symbol name='iget5_locked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8969884b'/>
+ <elf-symbol name='ihold' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x21e5e060'/>
+ <elf-symbol name='iio_channel_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdcbb6f91'/>
+ <elf-symbol name='iio_channel_get_all' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcdd42702'/>
+ <elf-symbol name='iio_channel_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9f10d7d'/>
+ <elf-symbol name='iio_read_channel_processed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4060002e'/>
+ <elf-symbol name='in6_dev_finish_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5f81e1c'/>
+ <elf-symbol name='in_egroup_p' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x39461d6a'/>
+ <elf-symbol name='inet6_add_offload' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8bc165b6'/>
+ <elf-symbol name='inet6_add_protocol' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe8b776e5'/>
+ <elf-symbol name='inet6_bind' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc52bb898'/>
+ <elf-symbol name='inet6_del_protocol' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x57e5f128'/>
+ <elf-symbol name='inet6_destroy_sock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9ad2512'/>
+ <elf-symbol name='inet6_getname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdab2c830'/>
+ <elf-symbol name='inet6_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe2c56e33'/>
+ <elf-symbol name='inet6_register_protosw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8042fed5'/>
+ <elf-symbol name='inet6_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18ddab8b'/>
+ <elf-symbol name='inet6_unregister_protosw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff00de39'/>
+ <elf-symbol name='inet_accept' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaef27c50'/>
+ <elf-symbol name='inet_add_offload' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c599d7b'/>
+ <elf-symbol name='inet_add_protocol' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47c4cd70'/>
+ <elf-symbol name='inet_addr_type' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x711e0d47'/>
+ <elf-symbol name='inet_bind' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x78dedcc8'/>
+ <elf-symbol name='inet_ctl_sock_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb72917c9'/>
+ <elf-symbol name='inet_del_offload' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1010c87'/>
+ <elf-symbol name='inet_del_protocol' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7dac4b6a'/>
+ <elf-symbol name='inet_diag_msg_attrs_fill' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xecde567'/>
+ <elf-symbol name='inet_diag_msg_common_fill' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d19486f'/>
+ <elf-symbol name='inet_diag_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab18d333'/>
+ <elf-symbol name='inet_diag_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f159a2b'/>
+ <elf-symbol name='inet_get_local_port_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66b093f4'/>
+ <elf-symbol name='inet_getname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x153e49b6'/>
+ <elf-symbol name='inet_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a4e82d5'/>
+ <elf-symbol name='inet_recvmsg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb54bdc91'/>
+ <elf-symbol name='inet_register_protosw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9da1f9f3'/>
+ <elf-symbol name='inet_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9c26c92'/>
+ <elf-symbol name='inet_sendmsg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe2840cd'/>
+ <elf-symbol name='inet_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5420361'/>
+ <elf-symbol name='inet_sk_set_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd51a3749'/>
+ <elf-symbol name='inet_sock_destruct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b6f4115'/>
+ <elf-symbol name='inet_unregister_protosw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa2cc786e'/>
+ <elf-symbol name='init_dummy_netdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7282cb7e'/>
+ <elf-symbol name='init_srcu_struct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac8db8ac'/>
+ <elf-symbol name='init_timer_key' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79cf5987'/>
+ <elf-symbol name='init_wait_entry' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe487975'/>
+ <elf-symbol name='inode_init_once' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc306fdcf'/>
+ <elf-symbol name='inode_init_owner' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75b473c6'/>
+ <elf-symbol name='inode_set_flags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6806dff'/>
+ <elf-symbol name='input_alloc_absinfo' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9dc9a32b'/>
+ <elf-symbol name='input_allocate_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50c76861'/>
+ <elf-symbol name='input_close_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20fafa48'/>
+ <elf-symbol name='input_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f0488b1'/>
+ <elf-symbol name='input_free_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe04fa3ba'/>
+ <elf-symbol name='input_mt_destroy_slots' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2062831e'/>
+ <elf-symbol name='input_mt_init_slots' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3037dd56'/>
+ <elf-symbol name='input_mt_report_slot_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e25918f'/>
+ <elf-symbol name='input_open_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6757557f'/>
+ <elf-symbol name='input_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf33af442'/>
+ <elf-symbol name='input_register_handle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f246cba'/>
+ <elf-symbol name='input_register_handler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a404963'/>
+ <elf-symbol name='input_set_abs_params' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd44fbaa6'/>
+ <elf-symbol name='input_set_capability' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58c9bb3'/>
+ <elf-symbol name='input_set_timestamp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f1525c7'/>
+ <elf-symbol name='input_unregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5aef6574'/>
+ <elf-symbol name='input_unregister_handle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf1216831'/>
+ <elf-symbol name='input_unregister_handler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf55a72ff'/>
+ <elf-symbol name='int_sqrt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb678366f'/>
+ <elf-symbol name='invalidate_mapping_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1f086ab'/>
+ <elf-symbol name='iommu_alloc_resv_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c7823d7'/>
+ <elf-symbol name='iommu_attach_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3aab573d'/>
+ <elf-symbol name='iommu_detach_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e489f13'/>
+ <elf-symbol name='iommu_device_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x49bf2f0d'/>
+ <elf-symbol name='iommu_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x30fe6ea4'/>
+ <elf-symbol name='iommu_device_sysfs_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2af2b6b6'/>
+ <elf-symbol name='iommu_device_unlink' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85311f5a'/>
+ <elf-symbol name='iommu_dma_enable_best_fit_algo' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x862a91e1'/>
+ <elf-symbol name='iommu_dma_get_resv_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa4ffb6e'/>
+ <elf-symbol name='iommu_dma_reserve_iova' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd67940c'/>
+ <elf-symbol name='iommu_domain_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd42b39f'/>
+ <elf-symbol name='iommu_domain_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf2283140'/>
+ <elf-symbol name='iommu_domain_get_attr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60ac49e8'/>
+ <elf-symbol name='iommu_domain_set_attr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba03277e'/>
+ <elf-symbol name='iommu_fwspec_add_ids' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa2449b63'/>
+ <elf-symbol name='iommu_fwspec_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef8f4524'/>
+ <elf-symbol name='iommu_fwspec_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x289de440'/>
+ <elf-symbol name='iommu_get_dma_cookie' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa081b916'/>
+ <elf-symbol name='iommu_get_domain_for_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xebef7864'/>
+ <elf-symbol name='iommu_group_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x935b882d'/>
+ <elf-symbol name='iommu_group_get_for_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x938c1a7e'/>
+ <elf-symbol name='iommu_group_get_iommudata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd55ad93b'/>
+ <elf-symbol name='iommu_group_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x89485687'/>
+ <elf-symbol name='iommu_group_ref_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d6d0bbc'/>
+ <elf-symbol name='iommu_group_remove_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38d19536'/>
+ <elf-symbol name='iommu_group_set_iommudata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc66b77b1'/>
+ <elf-symbol name='iommu_iova_to_phys' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18f19542'/>
+ <elf-symbol name='iommu_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd6904d0'/>
+ <elf-symbol name='iommu_map_sg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4d9c39a'/>
+ <elf-symbol name='iommu_present' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x362d75cd'/>
+ <elf-symbol name='iommu_put_dma_cookie' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85a8a8a4'/>
+ <elf-symbol name='iommu_set_fault_handler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24d46855'/>
+ <elf-symbol name='iommu_unmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c1812a8'/>
+ <elf-symbol name='ioremap_page_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7dedaec'/>
+ <elf-symbol name='iov_iter_revert' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x605630b4'/>
+ <elf-symbol name='ip6_dst_lookup_flow' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb634e8b9'/>
+ <elf-symbol name='ip6_xmit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc81ea3e4'/>
+ <elf-symbol name='ip_compute_csum' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20eadeb6'/>
+ <elf-symbol name='ip_getsockopt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e7d6eed'/>
+ <elf-symbol name='ip_route_output_flow' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x449ab833'/>
+ <elf-symbol name='ip_setsockopt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73a11df8'/>
+ <elf-symbol name='iput' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x21fe3c5a'/>
+ <elf-symbol name='ipv6_chk_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e3b36d1'/>
+ <elf-symbol name='ipv6_dup_options' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ffc6601'/>
+ <elf-symbol name='ipv6_ext_hdr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x452ba683'/>
+ <elf-symbol name='ipv6_getsockopt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b2e4346'/>
+ <elf-symbol name='ipv6_setsockopt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b90ae3f'/>
+ <elf-symbol name='ipv6_skip_exthdr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfefb52bc'/>
+ <elf-symbol name='irq_chip_disable_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14372d9e'/>
+ <elf-symbol name='irq_chip_enable_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3bbbf0a'/>
+ <elf-symbol name='irq_chip_eoi_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf52fb03f'/>
+ <elf-symbol name='irq_chip_get_parent_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf52bc3d2'/>
+ <elf-symbol name='irq_chip_mask_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9dcc5cb4'/>
+ <elf-symbol name='irq_chip_retrigger_hierarchy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb30904b0'/>
+ <elf-symbol name='irq_chip_set_affinity_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf188bb7e'/>
+ <elf-symbol name='irq_chip_set_parent_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f9fd56e'/>
+ <elf-symbol name='irq_chip_set_type_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ef81949'/>
+ <elf-symbol name='irq_chip_set_vcpu_affinity_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58216c1d'/>
+ <elf-symbol name='irq_chip_set_wake_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbfa08fe1'/>
+ <elf-symbol name='irq_chip_unmask_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaab04e2'/>
+ <elf-symbol name='irq_create_fwspec_mapping' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe3251aaa'/>
+ <elf-symbol name='irq_create_mapping' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4245d63'/>
+ <elf-symbol name='irq_domain_alloc_irqs_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f33de69'/>
+ <elf-symbol name='irq_domain_create_hierarchy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc95daa2d'/>
+ <elf-symbol name='irq_domain_free_irqs_common' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5dec5e62'/>
+ <elf-symbol name='irq_domain_free_irqs_top' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e21121f'/>
+ <elf-symbol name='irq_domain_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8083d7e'/>
+ <elf-symbol name='irq_domain_set_hwirq_and_chip' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34b4ab89'/>
+ <elf-symbol name='irq_domain_update_bus_token' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68278098'/>
+ <elf-symbol name='irq_domain_xlate_onecell' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb1f61075'/>
+ <elf-symbol name='irq_domain_xlate_twocell' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x927be38f'/>
+ <elf-symbol name='irq_find_mapping' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e866969'/>
+ <elf-symbol name='irq_find_matching_fwspec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde5b4403'/>
+ <elf-symbol name='irq_get_irq_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x563f1ffc'/>
+ <elf-symbol name='irq_get_irqchip_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d222ced'/>
+ <elf-symbol name='irq_modify_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7522f3ba'/>
+ <elf-symbol name='irq_of_parse_and_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b50917a'/>
+ <elf-symbol name='irq_set_affinity_hint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a7b4b03'/>
+ <elf-symbol name='irq_set_affinity_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x226c14a1'/>
+ <elf-symbol name='irq_set_chained_handler_and_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad47b1c6'/>
+ <elf-symbol name='irq_set_chip_and_handler_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x754d4ab7'/>
+ <elf-symbol name='irq_set_chip_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20a789ac'/>
+ <elf-symbol name='irq_set_handler_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3dcb88a0'/>
+ <elf-symbol name='irq_set_irq_type' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbc477a2'/>
+ <elf-symbol name='irq_set_irq_wake' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xce2840e7'/>
+ <elf-symbol name='irq_set_irqchip_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb88dbfce'/>
+ <elf-symbol name='irq_set_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc6596fa'/>
+ <elf-symbol name='irq_to_desc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2ad26203'/>
+ <elf-symbol name='iterate_dir' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6aa8679'/>
+ <elf-symbol name='iterate_fd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x129d9eb3'/>
+ <elf-symbol name='jiffies_to_msecs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37befc70'/>
+ <elf-symbol name='jiffies_to_usecs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f24de73'/>
+ <elf-symbol name='kasprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44b5ee9a'/>
+ <elf-symbol name='kern_addr_valid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc30885d7'/>
+ <elf-symbol name='kern_path' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb97e3e14'/>
+ <elf-symbol name='kernel_connect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50c758c0'/>
+ <elf-symbol name='kernel_getsockname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc15a363b'/>
+ <elf-symbol name='kernel_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x898e10c2'/>
+ <elf-symbol name='kernel_recvmsg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x465fa832'/>
+ <elf-symbol name='kernel_restart' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e7bbcb3'/>
+ <elf-symbol name='kernel_sendmsg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34d2b7d3'/>
+ <elf-symbol name='kernel_setsockopt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa2b7c7a3'/>
+ <elf-symbol name='kernel_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87af1546'/>
+ <elf-symbol name='kernfs_create_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31141903'/>
+ <elf-symbol name='kernfs_find_and_get_ns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5e8dba6'/>
+ <elf-symbol name='kernfs_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcfbf8975'/>
+ <elf-symbol name='kernfs_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb25f461'/>
+ <elf-symbol name='keyslot_manager_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x499769c2'/>
+ <elf-symbol name='keyslot_manager_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa53d1420'/>
+ <elf-symbol name='keyslot_manager_private' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44d0da72'/>
+ <elf-symbol name='keyslot_manager_reprogram_all_keys' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9bb582f'/>
+ <elf-symbol name='keyslot_manager_set_max_dun_bytes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfbb99950'/>
+ <elf-symbol name='kfree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37a0cba'/>
+ <elf-symbol name='kfree_call_rcu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x19f462ab'/>
+ <elf-symbol name='kfree_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xabac9ac'/>
+ <elf-symbol name='kill_fasync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7133c6b9'/>
+ <elf-symbol name='kmalloc_order_trace' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa202a8e5'/>
+ <elf-symbol name='kmem_cache_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa063a4c1'/>
+ <elf-symbol name='kmem_cache_alloc_bulk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5526fe99'/>
+ <elf-symbol name='kmem_cache_alloc_trace' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8d29999'/>
+ <elf-symbol name='kmem_cache_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ec97d62'/>
+ <elf-symbol name='kmem_cache_create_usercopy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa1c7a6fc'/>
+ <elf-symbol name='kmem_cache_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4034f026'/>
+ <elf-symbol name='kmem_cache_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe3d41cf0'/>
+ <elf-symbol name='kmem_cache_free_bulk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd187c87d'/>
+ <elf-symbol name='kmemdup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x448eac3e'/>
+ <elf-symbol name='kobject_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4da53861'/>
+ <elf-symbol name='kobject_create_and_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x161c5d7d'/>
+ <elf-symbol name='kobject_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc53cebb3'/>
+ <elf-symbol name='kobject_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3d828d57'/>
+ <elf-symbol name='kobject_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd881e82'/>
+ <elf-symbol name='kobject_init_and_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3da0522'/>
+ <elf-symbol name='kobject_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbbc9ee2e'/>
+ <elf-symbol name='kobject_uevent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9b91c75'/>
+ <elf-symbol name='kobject_uevent_env' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5a44ce16'/>
+ <elf-symbol name='krealloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c2d098f'/>
+ <elf-symbol name='kset_create_and_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3fc7f39e'/>
+ <elf-symbol name='kset_find_obj' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd995a270'/>
+ <elf-symbol name='kset_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c34ae31'/>
+ <elf-symbol name='ksize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4ea5d10'/>
+ <elf-symbol name='kstat_irqs_usr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9bb05a3a'/>
+ <elf-symbol name='kstrdup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc499ae1e'/>
+ <elf-symbol name='kstrndup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf6ae696'/>
+ <elf-symbol name='kstrtobool' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0875eb1'/>
+ <elf-symbol name='kstrtoint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2276db98'/>
+ <elf-symbol name='kstrtoll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x779a18af'/>
+ <elf-symbol name='kstrtos8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbcbdf60f'/>
+ <elf-symbol name='kstrtos8_from_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb417f082'/>
+ <elf-symbol name='kstrtou16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b0192da'/>
+ <elf-symbol name='kstrtou8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x46045dd7'/>
+ <elf-symbol name='kstrtouint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69ad2f20'/>
+ <elf-symbol name='kstrtoull' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c80c06c'/>
+ <elf-symbol name='kthread_cancel_delayed_work_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed85646'/>
+ <elf-symbol name='kthread_cancel_work_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6cd0fa16'/>
+ <elf-symbol name='kthread_create_on_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34d2c821'/>
+ <elf-symbol name='kthread_delayed_work_timer_fn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1b48cc6'/>
+ <elf-symbol name='kthread_flush_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24e63614'/>
+ <elf-symbol name='kthread_flush_worker' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72155cc7'/>
+ <elf-symbol name='kthread_mod_delayed_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d221e10'/>
+ <elf-symbol name='kthread_park' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd640746a'/>
+ <elf-symbol name='kthread_parkme' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf95322f4'/>
+ <elf-symbol name='kthread_queue_delayed_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9be0cf1c'/>
+ <elf-symbol name='kthread_queue_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x156264e5'/>
+ <elf-symbol name='kthread_should_park' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79defbe1'/>
+ <elf-symbol name='kthread_should_stop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3f7646e'/>
+ <elf-symbol name='kthread_stop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba77caf5'/>
+ <elf-symbol name='kthread_unpark' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9cb376b4'/>
+ <elf-symbol name='kthread_worker_fn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x955b0e2e'/>
+ <elf-symbol name='ktime_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb43f9365'/>
+ <elf-symbol name='ktime_get_coarse_real_ts64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x484f6edf'/>
+ <elf-symbol name='ktime_get_raw_ts64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1edb69d6'/>
+ <elf-symbol name='ktime_get_real_seconds' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x953e1b9e'/>
+ <elf-symbol name='ktime_get_real_ts64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ec6ca96'/>
+ <elf-symbol name='ktime_get_ts64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e515be6'/>
+ <elf-symbol name='ktime_get_with_offset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4f0da12'/>
+ <elf-symbol name='kvfree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7aa1756e'/>
+ <elf-symbol name='kvmalloc_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5bc25de'/>
+ <elf-symbol name='kzfree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a4497db'/>
+ <elf-symbol name='led_classdev_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72a7b07f'/>
+ <elf-symbol name='led_trigger_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc69c7ba9'/>
+ <elf-symbol name='led_trigger_register_simple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15f48c71'/>
+ <elf-symbol name='led_trigger_unregister_simple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c453915'/>
+ <elf-symbol name='list_sort' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf0ef15b4'/>
+ <elf-symbol name='llist_add_batch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7a1840e'/>
+ <elf-symbol name='lock_rename' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaaa5cea8'/>
+ <elf-symbol name='lock_sock_nested' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5980f255'/>
+ <elf-symbol name='lockref_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9b85ef6'/>
+ <elf-symbol name='log_buf_addr_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81b939ec'/>
+ <elf-symbol name='log_buf_len_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc98fa91b'/>
+ <elf-symbol name='lookup_one_len' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65f82f96'/>
+ <elf-symbol name='mac_pton' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x652032cb'/>
+ <elf-symbol name='match_int' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e3567f7'/>
+ <elf-symbol name='match_strdup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xacf4d843'/>
+ <elf-symbol name='match_token' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44e9a829'/>
+ <elf-symbol name='mbox_chan_received_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff337c2d'/>
+ <elf-symbol name='mbox_chan_txdone' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa749e3eb'/>
+ <elf-symbol name='mbox_client_txdone' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd012d7a0'/>
+ <elf-symbol name='mbox_controller_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbc04bce3'/>
+ <elf-symbol name='mbox_controller_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27695d4c'/>
+ <elf-symbol name='mbox_free_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x578c889a'/>
+ <elf-symbol name='mbox_request_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7270b6c8'/>
+ <elf-symbol name='mbox_send_message' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x90633698'/>
+ <elf-symbol name='media_device_cleanup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f120ce4'/>
+ <elf-symbol name='media_device_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x482302bd'/>
+ <elf-symbol name='media_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d181a68'/>
+ <elf-symbol name='media_entity_pads_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x13ca3ae1'/>
+ <elf-symbol name='memblock_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9f0ec720'/>
+ <elf-symbol name='memblock_overlaps_memory' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8fb9f4f7'/>
+ <elf-symbol name='memchr' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0xa07a37f0'/>
+ <elf-symbol name='memchr_inv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8df92f66'/>
+ <elf-symbol name='memcmp' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0x449ad0a7'/>
+ <elf-symbol name='memcpy' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0x4829a47e'/>
+ <elf-symbol name='memdup_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9291cd3b'/>
+ <elf-symbol name='memmove' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0x5a9f1d63'/>
+ <elf-symbol name='memparse' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27864d57'/>
+ <elf-symbol name='mempool_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86c45796'/>
+ <elf-symbol name='mempool_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a244503'/>
+ <elf-symbol name='mempool_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9300507b'/>
+ <elf-symbol name='mempool_exit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x36c2dd1d'/>
+ <elf-symbol name='mempool_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74b55fe'/>
+ <elf-symbol name='mempool_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d754f2b'/>
+ <elf-symbol name='mempool_kfree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a037cf1'/>
+ <elf-symbol name='mempool_kmalloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa05c03df'/>
+ <elf-symbol name='memremap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d924f20'/>
+ <elf-symbol name='memset' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0xdcb764ad'/>
+ <elf-symbol name='memunmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e9fdd9d'/>
+ <elf-symbol name='memzero_explicit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc15a44c6'/>
+ <elf-symbol name='mipi_dsi_create_packet' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81ce66fa'/>
+ <elf-symbol name='mipi_dsi_dcs_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74a3e481'/>
+ <elf-symbol name='mipi_dsi_dcs_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61841d9e'/>
+ <elf-symbol name='mipi_dsi_dcs_write_buffer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x971056f5'/>
+ <elf-symbol name='mipi_dsi_host_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x824b38a8'/>
+ <elf-symbol name='mipi_dsi_host_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4c3b0c39'/>
+ <elf-symbol name='misc_deregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb14aca51'/>
+ <elf-symbol name='misc_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e6716c'/>
+ <elf-symbol name='mm_event_count' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f698ca7'/>
+ <elf-symbol name='mm_event_end' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf44c1475'/>
+ <elf-symbol name='mm_trace_rss_stat' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x169d5aae'/>
+ <elf-symbol name='mmput' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x902348f4'/>
+ <elf-symbol name='mod_delayed_work_on' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xffba80e6'/>
+ <elf-symbol name='mod_node_page_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe654ef70'/>
+ <elf-symbol name='mod_timer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72cd0f7f'/>
+ <elf-symbol name='module_layout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53f3053'/>
+ <elf-symbol name='module_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0857e2b'/>
+ <elf-symbol name='msleep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9a482f9'/>
+ <elf-symbol name='msleep_interruptible' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc5005fe'/>
+ <elf-symbol name='mutex_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41aed6e7'/>
+ <elf-symbol name='mutex_lock_interruptible' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3cee3b01'/>
+ <elf-symbol name='mutex_trylock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3b42a38'/>
+ <elf-symbol name='mutex_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6093a32'/>
+ <elf-symbol name='napi_busy_loop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc81e91a8'/>
+ <elf-symbol name='napi_complete_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf9104fc'/>
+ <elf-symbol name='napi_consume_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ebd809b'/>
+ <elf-symbol name='napi_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x447da36e'/>
+ <elf-symbol name='napi_gro_flush' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c174296'/>
+ <elf-symbol name='napi_gro_receive' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad60034f'/>
+ <elf-symbol name='napi_hash_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x203dddb7'/>
+ <elf-symbol name='napi_schedule_prep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd28cff87'/>
+ <elf-symbol name='net_enable_timestamp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x54e6fcdd'/>
+ <elf-symbol name='net_ratelimit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6ebc03b'/>
+ <elf-symbol name='netdev_change_features' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa621ca6e'/>
+ <elf-symbol name='netdev_err' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8eeae74'/>
+ <elf-symbol name='netdev_increment_features' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69668826'/>
+ <elf-symbol name='netdev_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4e42a75'/>
+ <elf-symbol name='netdev_lower_state_changed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7e021b85'/>
+ <elf-symbol name='netdev_master_upper_dev_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4435bbd3'/>
+ <elf-symbol name='netdev_notify_peers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9bf7cde2'/>
+ <elf-symbol name='netdev_rx_handler_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27152562'/>
+ <elf-symbol name='netdev_rx_handler_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15be476b'/>
+ <elf-symbol name='netdev_upper_dev_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92f5a7db'/>
+ <elf-symbol name='netdev_upper_dev_unlink' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x423db5b7'/>
+ <elf-symbol name='netdev_warn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1bb47df'/>
+ <elf-symbol name='netif_carrier_off' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x926b2e13'/>
+ <elf-symbol name='netif_carrier_on' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ee9d30b'/>
+ <elf-symbol name='netif_device_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x269b6275'/>
+ <elf-symbol name='netif_device_detach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8612dff0'/>
+ <elf-symbol name='netif_napi_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9eeda7cb'/>
+ <elf-symbol name='netif_napi_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ad9b8b9'/>
+ <elf-symbol name='netif_receive_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x495f6c5b'/>
+ <elf-symbol name='netif_rx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xddb31ae0'/>
+ <elf-symbol name='netif_rx_ni' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb436c1d4'/>
+ <elf-symbol name='netif_schedule_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5230eb90'/>
+ <elf-symbol name='netif_set_real_num_rx_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3bab98f'/>
+ <elf-symbol name='netif_set_real_num_tx_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe33fc624'/>
+ <elf-symbol name='netif_stacked_transfer_operstate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0d0afc2'/>
+ <elf-symbol name='netif_tx_stop_all_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x45bcebb9'/>
+ <elf-symbol name='netif_tx_wake_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c25e23b'/>
+ <elf-symbol name='netlink_broadcast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb975aed'/>
+ <elf-symbol name='netlink_capable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4575e3f'/>
+ <elf-symbol name='netlink_kernel_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40805ee'/>
+ <elf-symbol name='netlink_net_capable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d3ed416'/>
+ <elf-symbol name='netlink_unicast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0708afd'/>
+ <elf-symbol name='nf_conntrack_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a18c74'/>
+ <elf-symbol name='nf_register_net_hooks' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9947332a'/>
+ <elf-symbol name='nf_register_sockopt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa46c9dc8'/>
+ <elf-symbol name='nf_unregister_net_hooks' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd7ecaca'/>
+ <elf-symbol name='nf_unregister_sockopt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f7f1655'/>
+ <elf-symbol name='nla_memcpy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf1db1704'/>
+ <elf-symbol name='nla_parse' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x43dae11a'/>
+ <elf-symbol name='nla_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97cdc797'/>
+ <elf-symbol name='nla_put_64bit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c5334b7'/>
+ <elf-symbol name='nla_reserve' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe666b276'/>
+ <elf-symbol name='nla_reserve_64bit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2adbe78e'/>
+ <elf-symbol name='nla_strlcpy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b640864'/>
+ <elf-symbol name='no_llseek' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63d81863'/>
+ <elf-symbol name='nonseekable_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xafc04fe0'/>
+ <elf-symbol name='noop_llseek' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x217f5202'/>
+ <elf-symbol name='notify_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x192ff32'/>
+ <elf-symbol name='nr_free_buffer_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27fa66e1'/>
+ <elf-symbol name='ns_capable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe752da09'/>
+ <elf-symbol name='ns_capable_noaudit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b732d50'/>
+ <elf-symbol name='ns_to_timespec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66decfd5'/>
+ <elf-symbol name='ns_to_timespec64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e1e140e'/>
+ <elf-symbol name='nsecs_to_jiffies' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xffae8e8b'/>
+ <elf-symbol name='nvdimm_bus_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6953ef0'/>
+ <elf-symbol name='nvdimm_bus_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x96824397'/>
+ <elf-symbol name='nvdimm_pmem_region_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e9c6ef'/>
+ <elf-symbol name='nvmem_cell_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x35676038'/>
+ <elf-symbol name='nvmem_cell_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85540ebc'/>
+ <elf-symbol name='nvmem_cell_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x99f018c4'/>
+ <elf-symbol name='nvmem_cell_read_u32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf79fb0d5'/>
+ <elf-symbol name='nvmem_device_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe6324bdb'/>
+ <elf-symbol name='nvmem_device_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x911809e2'/>
+ <elf-symbol name='nvmem_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f0fc8a3'/>
+ <elf-symbol name='nvmem_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4acdc1fc'/>
+ <elf-symbol name='of_address_to_resource' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8caf6730'/>
+ <elf-symbol name='of_alias_get_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7054f56f'/>
+ <elf-symbol name='of_clk_add_provider' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe72b8f3e'/>
+ <elf-symbol name='of_clk_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70c8080e'/>
+ <elf-symbol name='of_clk_get_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68ba623c'/>
+ <elf-symbol name='of_clk_get_from_provider' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b02fc45'/>
+ <elf-symbol name='of_clk_get_parent_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1de8edb2'/>
+ <elf-symbol name='of_clk_src_onecell_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7dc9d053'/>
+ <elf-symbol name='of_count_phandle_with_args' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37eac505'/>
+ <elf-symbol name='of_cpufreq_cooling_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa4a952d2'/>
+ <elf-symbol name='of_dev_pm_opp_get_cpu_power' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92d0297c'/>
+ <elf-symbol name='of_devfreq_cooling_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f7b40c6'/>
+ <elf-symbol name='of_device_get_match_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdad9575b'/>
+ <elf-symbol name='of_device_is_available' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac081779'/>
+ <elf-symbol name='of_device_is_compatible' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5685a5c1'/>
+ <elf-symbol name='of_device_modalias' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0190cb3'/>
+ <elf-symbol name='of_device_uevent_modalias' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd64ed36d'/>
+ <elf-symbol name='of_dma_configure' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c62f5d2'/>
+ <elf-symbol name='of_dma_controller_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd786b79'/>
+ <elf-symbol name='of_dma_is_coherent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4aea25a0'/>
+ <elf-symbol name='of_drm_find_bridge' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5c1c44e'/>
+ <elf-symbol name='of_drm_find_panel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12c629bd'/>
+ <elf-symbol name='of_fdt_get_ddrhbb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd62107b8'/>
+ <elf-symbol name='of_fdt_get_ddrrank' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x339a171d'/>
+ <elf-symbol name='of_fdt_get_ddrtype' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x231f3173'/>
+ <elf-symbol name='of_find_compatible_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x13fbdbf9'/>
+ <elf-symbol name='of_find_device_by_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9018c5cf'/>
+ <elf-symbol name='of_find_i2c_device_by_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6f593ea'/>
+ <elf-symbol name='of_find_node_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6df8dc32'/>
+ <elf-symbol name='of_find_node_by_phandle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x21df2c2d'/>
+ <elf-symbol name='of_find_node_opts_by_path' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x43179c2c'/>
+ <elf-symbol name='of_find_node_with_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8e2ab83'/>
+ <elf-symbol name='of_find_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x96a3b86b'/>
+ <elf-symbol name='of_genpd_add_provider_onecell' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5bbfe097'/>
+ <elf-symbol name='of_genpd_add_provider_simple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3fe38270'/>
+ <elf-symbol name='of_genpd_del_provider' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa790593c'/>
+ <elf-symbol name='of_get_address' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x774e928d'/>
+ <elf-symbol name='of_get_child_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe2043378'/>
+ <elf-symbol name='of_get_cpu_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x723a55a7'/>
+ <elf-symbol name='of_get_named_gpio_flags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa56c7728'/>
+ <elf-symbol name='of_get_next_available_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1bf802a4'/>
+ <elf-symbol name='of_get_next_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e58f1c0'/>
+ <elf-symbol name='of_get_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3b7a6f9'/>
+ <elf-symbol name='of_get_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74efeffe'/>
+ <elf-symbol name='of_get_regulator_init_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x39686b9'/>
+ <elf-symbol name='of_graph_get_next_endpoint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa7e30ad6'/>
+ <elf-symbol name='of_graph_get_remote_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf2bee1fd'/>
+ <elf-symbol name='of_graph_get_remote_port_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7dc1a3d7'/>
+ <elf-symbol name='of_graph_parse_endpoint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe57653cb'/>
+ <elf-symbol name='of_hwspin_lock_get_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff8a8d5'/>
+ <elf-symbol name='of_iomap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e93e430'/>
+ <elf-symbol name='of_irq_domain_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d16a1ae'/>
+ <elf-symbol name='of_irq_find_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf43feb48'/>
+ <elf-symbol name='of_irq_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9423703f'/>
+ <elf-symbol name='of_irq_get_byname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e27f435'/>
+ <elf-symbol name='of_led_classdev_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a65e'/>
+ <elf-symbol name='of_machine_is_compatible' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd31ccb06'/>
+ <elf-symbol name='of_match_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14c0079f'/>
+ <elf-symbol name='of_match_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x488bddbd'/>
+ <elf-symbol name='of_modalias_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc3e4c85'/>
+ <elf-symbol name='of_n_addr_cells' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x944a529f'/>
+ <elf-symbol name='of_n_size_cells' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff309282'/>
+ <elf-symbol name='of_parse_phandle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66636992'/>
+ <elf-symbol name='of_parse_phandle_with_args' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7e2be9e7'/>
+ <elf-symbol name='of_parse_phandle_with_fixed_args' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x332ef85a'/>
+ <elf-symbol name='of_phandle_iterator_args' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa24198a1'/>
+ <elf-symbol name='of_phandle_iterator_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3a6c792'/>
+ <elf-symbol name='of_phandle_iterator_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d4b609'/>
+ <elf-symbol name='of_phy_simple_xlate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74e52f55'/>
+ <elf-symbol name='of_platform_depopulate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5882c25'/>
+ <elf-symbol name='of_platform_device_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f297a00'/>
+ <elf-symbol name='of_platform_populate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee726310'/>
+ <elf-symbol name='of_prop_next_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e23fd20'/>
+ <elf-symbol name='of_prop_next_u32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48fc3bdc'/>
+ <elf-symbol name='of_property_count_elems_of_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6157305'/>
+ <elf-symbol name='of_property_match_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f93e3bb'/>
+ <elf-symbol name='of_property_read_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38d618d3'/>
+ <elf-symbol name='of_property_read_string_helper' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3fdc193f'/>
+ <elf-symbol name='of_property_read_u32_index' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb76192d'/>
+ <elf-symbol name='of_property_read_u64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe3730127'/>
+ <elf-symbol name='of_property_read_variable_u16_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x676b60c9'/>
+ <elf-symbol name='of_property_read_variable_u32_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd42df44d'/>
+ <elf-symbol name='of_property_read_variable_u8_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe615aa76'/>
+ <elf-symbol name='of_reserved_mem_lookup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a7b57d8'/>
+ <elf-symbol name='of_reset_control_array_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae4b85cf'/>
+ <elf-symbol name='of_thermal_handle_trip' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb68a0548'/>
+ <elf-symbol name='of_thermal_handle_trip_temp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8afd3045'/>
+ <elf-symbol name='of_translate_address' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa2c0572a'/>
+ <elf-symbol name='of_usb_get_phy_mode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88558327'/>
+ <elf-symbol name='override_creds' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53ed514e'/>
+ <elf-symbol name='pagecache_get_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f9bedb7'/>
+ <elf-symbol name='panic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c1372e8'/>
+ <elf-symbol name='param_get_bool' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68c6561'/>
+ <elf-symbol name='param_get_int' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7da7e05'/>
+ <elf-symbol name='param_get_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff46d0a0'/>
+ <elf-symbol name='param_get_uint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86cc6968'/>
+ <elf-symbol name='param_set_bool' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x99eac1ca'/>
+ <elf-symbol name='param_set_copystring' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa39159e'/>
+ <elf-symbol name='param_set_int' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x54494194'/>
+ <elf-symbol name='passthru_features_check' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65774e81'/>
+ <elf-symbol name='path_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda48bfcf'/>
+ <elf-symbol name='path_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe268202'/>
+ <elf-symbol name='pci_alloc_irq_vectors_affinity' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c30f9a1'/>
+ <elf-symbol name='pci_clear_master' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6edb409'/>
+ <elf-symbol name='pci_device_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4304799c'/>
+ <elf-symbol name='pci_disable_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x423bf6a7'/>
+ <elf-symbol name='pci_enable_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40147a3e'/>
+ <elf-symbol name='pci_find_capability' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xce9341bc'/>
+ <elf-symbol name='pci_find_ext_capability' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe19c4c6e'/>
+ <elf-symbol name='pci_find_next_capability' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d878cf6'/>
+ <elf-symbol name='pci_for_each_dma_alias' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdfd676ed'/>
+ <elf-symbol name='pci_free_irq_vectors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x59df5a04'/>
+ <elf-symbol name='pci_iomap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41059f03'/>
+ <elf-symbol name='pci_iomap_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5bfad37'/>
+ <elf-symbol name='pci_irq_get_affinity' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4716838b'/>
+ <elf-symbol name='pci_irq_vector' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb9dbf01'/>
+ <elf-symbol name='pci_read_config_byte' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24468ad5'/>
+ <elf-symbol name='pci_read_config_dword' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a773ce5'/>
+ <elf-symbol name='pci_read_config_word' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd4805572'/>
+ <elf-symbol name='pci_release_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x19a3339d'/>
+ <elf-symbol name='pci_release_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb09dc20'/>
+ <elf-symbol name='pci_release_selected_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9db524bf'/>
+ <elf-symbol name='pci_request_acs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x188b8248'/>
+ <elf-symbol name='pci_request_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe311fb9'/>
+ <elf-symbol name='pci_request_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4dbf534c'/>
+ <elf-symbol name='pci_request_selected_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x972f27d9'/>
+ <elf-symbol name='pci_set_master' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x521e0c36'/>
+ <elf-symbol name='pci_unregister_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x16cbf320'/>
+ <elf-symbol name='pci_write_config_dword' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67366523'/>
+ <elf-symbol name='pci_write_config_word' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60333d28'/>
+ <elf-symbol name='pcim_enable_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8142b4ab'/>
+ <elf-symbol name='per_cpu_ptr_to_phys' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55ffab3b'/>
+ <elf-symbol name='percpu_counter_add_batch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe138fb8c'/>
+ <elf-symbol name='percpu_counter_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac537ac2'/>
+ <elf-symbol name='perf_event_create_kernel_counter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38376d05'/>
+ <elf-symbol name='perf_event_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa56d2c8'/>
+ <elf-symbol name='perf_event_read_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb98f36d'/>
+ <elf-symbol name='perf_event_release_kernel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23d1ba6d'/>
+ <elf-symbol name='perf_pmu_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7da5d391'/>
+ <elf-symbol name='perf_trace_buf_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e21ffae'/>
+ <elf-symbol name='perf_trace_run_bpf_submit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1301af5'/>
+ <elf-symbol name='pfn_valid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51e77c97'/>
+ <elf-symbol name='phy_create_lookup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84d214c0'/>
+ <elf-symbol name='phy_exit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc14f50f1'/>
+ <elf-symbol name='phy_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2cb26d18'/>
+ <elf-symbol name='phy_pm_runtime_get_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf5e0a28'/>
+ <elf-symbol name='phy_pm_runtime_put_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77ef2462'/>
+ <elf-symbol name='phy_power_off' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c023a65'/>
+ <elf-symbol name='phy_power_on' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x847b58c3'/>
+ <elf-symbol name='phy_remove_lookup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc066d187'/>
+ <elf-symbol name='phy_set_mode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x925b3dbc'/>
+ <elf-symbol name='pinconf_generic_dt_node_to_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4c6e5228'/>
+ <elf-symbol name='pinctrl_dev_get_drvdata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25bde11d'/>
+ <elf-symbol name='pinctrl_lookup_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11c22ef2'/>
+ <elf-symbol name='pinctrl_pm_select_default_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61ab99b8'/>
+ <elf-symbol name='pinctrl_pm_select_sleep_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a085d2d'/>
+ <elf-symbol name='pinctrl_select_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9274f70'/>
+ <elf-symbol name='pinctrl_utils_free_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfc300073'/>
+ <elf-symbol name='pipe_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x338d4f17'/>
+ <elf-symbol name='pipe_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd04e9893'/>
+ <elf-symbol name='platform_device_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf1eef51'/>
+ <elf-symbol name='platform_device_add_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6224d6d2'/>
+ <elf-symbol name='platform_device_add_properties' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xceb5f873'/>
+ <elf-symbol name='platform_device_add_resources' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb71dbef'/>
+ <elf-symbol name='platform_device_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60fe99a1'/>
+ <elf-symbol name='platform_device_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2d08b61'/>
+ <elf-symbol name='platform_device_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc44ba3c6'/>
+ <elf-symbol name='platform_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x320541aa'/>
+ <elf-symbol name='platform_device_register_full' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1be3b708'/>
+ <elf-symbol name='platform_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5c6e33'/>
+ <elf-symbol name='platform_driver_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x56fe8387'/>
+ <elf-symbol name='platform_get_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xffba6bcc'/>
+ <elf-symbol name='platform_get_irq_byname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb281052b'/>
+ <elf-symbol name='platform_get_resource' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6c6e02f'/>
+ <elf-symbol name='platform_get_resource_byname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae329886'/>
+ <elf-symbol name='platform_irq_count' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad953c65'/>
+ <elf-symbol name='plist_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x267f26d1'/>
+ <elf-symbol name='plist_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a5a9583'/>
+ <elf-symbol name='pm_generic_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x316454b0'/>
+ <elf-symbol name='pm_generic_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5c06906'/>
+ <elf-symbol name='pm_genpd_add_subdomain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74398f4'/>
+ <elf-symbol name='pm_genpd_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x364f5eeb'/>
+ <elf-symbol name='pm_genpd_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f15b271'/>
+ <elf-symbol name='pm_genpd_remove_subdomain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x364ab712'/>
+ <elf-symbol name='pm_qos_add_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5952596a'/>
+ <elf-symbol name='pm_qos_remove_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef8c5c3b'/>
+ <elf-symbol name='pm_qos_request_active' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x35f22432'/>
+ <elf-symbol name='pm_qos_request_for_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9b19138'/>
+ <elf-symbol name='pm_qos_request_for_cpumask' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf678fb75'/>
+ <elf-symbol name='pm_qos_update_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeeffde30'/>
+ <elf-symbol name='pm_qos_update_request_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c7744d2'/>
+ <elf-symbol name='pm_relax' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d836ef5'/>
+ <elf-symbol name='pm_runtime_allow' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x853cb911'/>
+ <elf-symbol name='pm_runtime_autosuspend_expiration' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x539b1671'/>
+ <elf-symbol name='pm_runtime_barrier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8961278f'/>
+ <elf-symbol name='pm_runtime_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcdf8db7e'/>
+ <elf-symbol name='pm_runtime_forbid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6bad25fb'/>
+ <elf-symbol name='pm_runtime_force_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4ddeb7f6'/>
+ <elf-symbol name='pm_runtime_force_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ea38ded'/>
+ <elf-symbol name='pm_runtime_no_callbacks' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b9cd860'/>
+ <elf-symbol name='pm_runtime_set_autosuspend_delay' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4ef65b2c'/>
+ <elf-symbol name='pm_stay_awake' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb1a3a82a'/>
+ <elf-symbol name='pm_system_wakeup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c0215f2'/>
+ <elf-symbol name='pm_wakeup_dev_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4b3c29'/>
+ <elf-symbol name='pm_wakeup_ws_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x268d9586'/>
+ <elf-symbol name='power_supply_changed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca7edd49'/>
+ <elf-symbol name='power_supply_get_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb81d2cbd'/>
+ <elf-symbol name='power_supply_get_drvdata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe3094bc'/>
+ <elf-symbol name='power_supply_get_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28560431'/>
+ <elf-symbol name='power_supply_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x836531b7'/>
+ <elf-symbol name='power_supply_reg_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x136209db'/>
+ <elf-symbol name='power_supply_set_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66cff830'/>
+ <elf-symbol name='power_supply_unreg_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b81c38b'/>
+ <elf-symbol name='prandom_u32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfda9581f'/>
+ <elf-symbol name='preempt_schedule' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x43b0c9c3'/>
+ <elf-symbol name='preempt_schedule_notrace' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf70e4a4d'/>
+ <elf-symbol name='prepare_to_wait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5fd90f1'/>
+ <elf-symbol name='prepare_to_wait_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c26d495'/>
+ <elf-symbol name='prepare_to_wait_exclusive' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x45e69e01'/>
+ <elf-symbol name='print_hex_dump' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x167c5967'/>
+ <elf-symbol name='print_hex_dump_bytes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x90e5d0b8'/>
+ <elf-symbol name='print_stack_trace' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8802492'/>
+ <elf-symbol name='printk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c32d0f0'/>
+ <elf-symbol name='proc_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x610a4358'/>
+ <elf-symbol name='proc_create_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfdaadc01'/>
+ <elf-symbol name='proc_create_net_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e2e38db'/>
+ <elf-symbol name='proc_create_net_single' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75034c31'/>
+ <elf-symbol name='proc_dointvec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8181adf'/>
+ <elf-symbol name='proc_dointvec_minmax' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2cdf87a1'/>
+ <elf-symbol name='proc_dostring' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x319d493d'/>
+ <elf-symbol name='proc_doulongvec_minmax' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec2e1c8f'/>
+ <elf-symbol name='proc_mkdir' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85bea3ea'/>
+ <elf-symbol name='proc_mkdir_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb12aa5b3'/>
+ <elf-symbol name='proto_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b119beb'/>
+ <elf-symbol name='proto_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc522a6e'/>
+ <elf-symbol name='pskb_expand_head' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc63b8df'/>
+ <elf-symbol name='ptr_to_hashval' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x993bc332'/>
+ <elf-symbol name='put_cmsg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa677a930'/>
+ <elf-symbol name='put_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x970736b2'/>
+ <elf-symbol name='put_disk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62c7fc74'/>
+ <elf-symbol name='put_pid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7798ed75'/>
+ <elf-symbol name='put_unused_fd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f4547a7'/>
+ <elf-symbol name='pwmchip_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f89b668'/>
+ <elf-symbol name='pwmchip_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15307ca'/>
+ <elf-symbol name='qdisc_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa4a741eb'/>
+ <elf-symbol name='queue_delayed_work_on' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaeca7f89'/>
+ <elf-symbol name='queue_work_on' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4be4d8b'/>
+ <elf-symbol name='radix_tree_iter_delete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5aa586e'/>
+ <elf-symbol name='radix_tree_lookup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5133acf'/>
+ <elf-symbol name='radix_tree_next_chunk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3466341'/>
+ <elf-symbol name='rational_best_approximation' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0a0da0c'/>
+ <elf-symbol name='raw_notifier_call_chain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa851973a'/>
+ <elf-symbol name='raw_notifier_chain_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc9fa232'/>
+ <elf-symbol name='raw_notifier_chain_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd06524ba'/>
+ <elf-symbol name='rb_erase' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d9b652b'/>
+ <elf-symbol name='rb_first' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xece784c2'/>
+ <elf-symbol name='rb_insert_color' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5526619'/>
+ <elf-symbol name='rb_last' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf2c2742'/>
+ <elf-symbol name='rb_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca9360b5'/>
+ <elf-symbol name='rb_prev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf82ec573'/>
+ <elf-symbol name='rcu_barrier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60a13e90'/>
+ <elf-symbol name='rdev_get_drvdata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x616f43'/>
+ <elf-symbol name='rdev_get_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55b90255'/>
+ <elf-symbol name='refcount_add_checked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7481b148'/>
+ <elf-symbol name='refcount_dec_and_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9e8aee7'/>
+ <elf-symbol name='refcount_dec_and_test_checked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb62b74af'/>
+ <elf-symbol name='refcount_dec_checked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8223179'/>
+ <elf-symbol name='refcount_dec_not_one' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe441e95a'/>
+ <elf-symbol name='refcount_inc_checked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ee8d6d4'/>
+ <elf-symbol name='refcount_inc_not_zero_checked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x957b1fb6'/>
+ <elf-symbol name='refcount_sub_and_test_checked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9b51c5a8'/>
+ <elf-symbol name='regcache_cache_only' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac658a35'/>
+ <elf-symbol name='regcache_drop_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1bef63f2'/>
+ <elf-symbol name='regcache_mark_dirty' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79d5dea2'/>
+ <elf-symbol name='regcache_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3fa36672'/>
+ <elf-symbol name='regcache_sync_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ba88038'/>
+ <elf-symbol name='register_blkdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71a50dbc'/>
+ <elf-symbol name='register_chrdev_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3fd78f3b'/>
+ <elf-symbol name='register_die_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6261484'/>
+ <elf-symbol name='register_filesystem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x78e79e6e'/>
+ <elf-symbol name='register_inet6addr_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60352082'/>
+ <elf-symbol name='register_inetaddr_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf68285c0'/>
+ <elf-symbol name='register_net_sysctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3dc8b982'/>
+ <elf-symbol name='register_netdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd370df6'/>
+ <elf-symbol name='register_netdevice' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x967bfe53'/>
+ <elf-symbol name='register_netdevice_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2da1048'/>
+ <elf-symbol name='register_netevent_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4761f17c'/>
+ <elf-symbol name='register_pernet_subsys' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe8136a8b'/>
+ <elf-symbol name='register_pm_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9cc4f70a'/>
+ <elf-symbol name='register_restart_handler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9d8fd16'/>
+ <elf-symbol name='register_shrinker' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe28476d8'/>
+ <elf-symbol name='register_syscore_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9c425de'/>
+ <elf-symbol name='register_sysctl_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf97d7de2'/>
+ <elf-symbol name='register_tick_sched_wakeup_callback' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61231b2f'/>
+ <elf-symbol name='register_virtio_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b8bdc1c'/>
+ <elf-symbol name='register_virtio_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7137b90'/>
+ <elf-symbol name='regmap_async_complete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88b9e303'/>
+ <elf-symbol name='regmap_bulk_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6109024d'/>
+ <elf-symbol name='regmap_bulk_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbee24fe4'/>
+ <elf-symbol name='regmap_field_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x78147d3e'/>
+ <elf-symbol name='regmap_field_update_bits_base' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x943219f1'/>
+ <elf-symbol name='regmap_irq_get_virq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55784228'/>
+ <elf-symbol name='regmap_multi_reg_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c3b7db8'/>
+ <elf-symbol name='regmap_multi_reg_write_bypassed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb214e37'/>
+ <elf-symbol name='regmap_raw_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x846e13c0'/>
+ <elf-symbol name='regmap_raw_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x551a0fbf'/>
+ <elf-symbol name='regmap_raw_write_async' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81bdfad2'/>
+ <elf-symbol name='regmap_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6814f328'/>
+ <elf-symbol name='regmap_register_patch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdea6493e'/>
+ <elf-symbol name='regmap_update_bits_base' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x725822b3'/>
+ <elf-symbol name='regmap_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfbccc25d'/>
+ <elf-symbol name='regulator_bulk_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9c0c9ba'/>
+ <elf-symbol name='regulator_bulk_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a44f1a2'/>
+ <elf-symbol name='regulator_count_voltages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x210cfb27'/>
+ <elf-symbol name='regulator_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5234575f'/>
+ <elf-symbol name='regulator_disable_deferred' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xacaf40c9'/>
+ <elf-symbol name='regulator_disable_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f0ec9d5'/>
+ <elf-symbol name='regulator_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbcb5867'/>
+ <elf-symbol name='regulator_enable_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e52babf'/>
+ <elf-symbol name='regulator_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd47e284b'/>
+ <elf-symbol name='regulator_get_drvdata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ee7fcea'/>
+ <elf-symbol name='regulator_get_mode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x742e5d1f'/>
+ <elf-symbol name='regulator_get_optional' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f0f1039'/>
+ <elf-symbol name='regulator_get_voltage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9ef593d'/>
+ <elf-symbol name='regulator_get_voltage_sel_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a052d7f'/>
+ <elf-symbol name='regulator_is_enabled' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b246f00'/>
+ <elf-symbol name='regulator_is_enabled_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad7d3af'/>
+ <elf-symbol name='regulator_list_voltage_linear' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55762be0'/>
+ <elf-symbol name='regulator_list_voltage_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d9f0f31'/>
+ <elf-symbol name='regulator_map_voltage_ascend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a2f9437'/>
+ <elf-symbol name='regulator_map_voltage_linear' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76437beb'/>
+ <elf-symbol name='regulator_notifier_call_chain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcaa74c7a'/>
+ <elf-symbol name='regulator_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7551dd13'/>
+ <elf-symbol name='regulator_register_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5dfd43d8'/>
+ <elf-symbol name='regulator_set_current_limit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfee67ca5'/>
+ <elf-symbol name='regulator_set_load' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7e68209d'/>
+ <elf-symbol name='regulator_set_mode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c87bc03'/>
+ <elf-symbol name='regulator_set_voltage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b4faeb8'/>
+ <elf-symbol name='regulator_set_voltage_sel_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd528751b'/>
+ <elf-symbol name='regulator_sync_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x802c036f'/>
+ <elf-symbol name='regulator_unregister_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34d121c5'/>
+ <elf-symbol name='regulatory_set_wiphy_regd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b2887c0'/>
+ <elf-symbol name='release_firmware' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaca439bf'/>
+ <elf-symbol name='release_sock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa507e99c'/>
+ <elf-symbol name='remap_pfn_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x310ac939'/>
+ <elf-symbol name='remove_proc_entry' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x287a0eea'/>
+ <elf-symbol name='remove_proc_subtree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb284dd3e'/>
+ <elf-symbol name='remove_wait_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37110088'/>
+ <elf-symbol name='report_iommu_fault' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8fae203'/>
+ <elf-symbol name='request_firmware' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc71b0956'/>
+ <elf-symbol name='request_firmware_into_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4bccd6e8'/>
+ <elf-symbol name='request_firmware_nowait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88b0e1e5'/>
+ <elf-symbol name='request_threaded_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2072ee9b'/>
+ <elf-symbol name='reservation_object_add_excl_fence' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc414b5ee'/>
+ <elf-symbol name='reservation_object_wait_timeout_rcu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7904faa7'/>
+ <elf-symbol name='reset_control_assert' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c4b6684'/>
+ <elf-symbol name='reset_control_deassert' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2210d64'/>
+ <elf-symbol name='reset_control_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40f0683e'/>
+ <elf-symbol name='reset_control_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24f39c39'/>
+ <elf-symbol name='revalidate_disk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x19ce1ab2'/>
+ <elf-symbol name='revert_creds' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x30f058d6'/>
+ <elf-symbol name='rfkill_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x45e942ef'/>
+ <elf-symbol name='rfkill_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb68bbad'/>
+ <elf-symbol name='rfkill_init_sw_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaad6d92f'/>
+ <elf-symbol name='rfkill_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25277497'/>
+ <elf-symbol name='rfkill_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x83eb21c'/>
+ <elf-symbol name='rhashtable_free_and_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb83ced86'/>
+ <elf-symbol name='rhashtable_insert_slow' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf27652f8'/>
+ <elf-symbol name='rhashtable_walk_enter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98376b44'/>
+ <elf-symbol name='rhashtable_walk_exit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x95c89f5a'/>
+ <elf-symbol name='rhashtable_walk_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x743e79e'/>
+ <elf-symbol name='rhashtable_walk_start_check' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0ee8d85'/>
+ <elf-symbol name='rhashtable_walk_stop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7514dc12'/>
+ <elf-symbol name='rhltable_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xead2011'/>
+ <elf-symbol name='rht_bucket_nested' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x94b8945c'/>
+ <elf-symbol name='rht_bucket_nested_insert' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3dd1dbe'/>
+ <elf-symbol name='rt_mutex_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa25096d'/>
+ <elf-symbol name='rt_mutex_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23514ff8'/>
+ <elf-symbol name='rtc_class_close' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38d9031e'/>
+ <elf-symbol name='rtc_class_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7828732'/>
+ <elf-symbol name='rtc_read_time' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e6934e3'/>
+ <elf-symbol name='rtc_time64_to_tm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x356461c8'/>
+ <elf-symbol name='rtc_tm_to_time64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f2250ba'/>
+ <elf-symbol name='rtc_update_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2318f4f6'/>
+ <elf-symbol name='rtc_valid_tm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5838f6c9'/>
+ <elf-symbol name='rtnl_is_locked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85670f1d'/>
+ <elf-symbol name='rtnl_link_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7ac0bb4'/>
+ <elf-symbol name='rtnl_link_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x83cd5c7a'/>
+ <elf-symbol name='rtnl_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7a4fbed'/>
+ <elf-symbol name='rtnl_register_module' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa1dffe0'/>
+ <elf-symbol name='rtnl_trylock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4f14de6'/>
+ <elf-symbol name='rtnl_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e720ff2'/>
+ <elf-symbol name='rtnl_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b52e38'/>
+ <elf-symbol name='s2idle_set_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5df1f36'/>
+ <elf-symbol name='save_stack_trace' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x361e2bcc'/>
+ <elf-symbol name='save_stack_trace_tsk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c34547'/>
+ <elf-symbol name='scatterwalk_ffwd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5bbdfa26'/>
+ <elf-symbol name='scatterwalk_map_and_copy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x845dbf3b'/>
+ <elf-symbol name='sched_clock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a26ed11'/>
+ <elf-symbol name='sched_isolate_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74b18b00'/>
+ <elf-symbol name='sched_setaffinity' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd67f3dc2'/>
+ <elf-symbol name='sched_setattr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe343701c'/>
+ <elf-symbol name='sched_setscheduler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdfb9996e'/>
+ <elf-symbol name='sched_unisolate_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7e7b6154'/>
+ <elf-symbol name='sched_unisolate_cpu_unlocked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3e37862'/>
+ <elf-symbol name='schedule' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1000e51'/>
+ <elf-symbol name='schedule_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ddd8aad'/>
+ <elf-symbol name='schedule_timeout_interruptible' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x54496b4'/>
+ <elf-symbol name='schedule_timeout_uninterruptible' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x151f4898'/>
+ <elf-symbol name='scnprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4ca9669f'/>
+ <elf-symbol name='scsi_add_host_with_dma' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb63c9f00'/>
+ <elf-symbol name='scsi_block_requests' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x395c2086'/>
+ <elf-symbol name='scsi_change_queue_depth' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x89b19900'/>
+ <elf-symbol name='scsi_device_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa98d119d'/>
+ <elf-symbol name='scsi_device_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7bf4732f'/>
+ <elf-symbol name='scsi_dma_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc585b607'/>
+ <elf-symbol name='scsi_dma_unmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdfbffbb8'/>
+ <elf-symbol name='scsi_host_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3565b582'/>
+ <elf-symbol name='scsi_host_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae4d3e7b'/>
+ <elf-symbol name='scsi_print_command' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7dd8daa'/>
+ <elf-symbol name='scsi_print_sense_hdr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ebe29d6'/>
+ <elf-symbol name='scsi_remove_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0ead6d2'/>
+ <elf-symbol name='scsi_remove_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd16d689e'/>
+ <elf-symbol name='scsi_report_bus_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd1b834c'/>
+ <elf-symbol name='scsi_scan_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4487b770'/>
+ <elf-symbol name='scsi_set_cmd_timeout_override' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe63f425a'/>
+ <elf-symbol name='scsi_unblock_requests' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd781eb03'/>
+ <elf-symbol name='sdev_prefix_printk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2da2ceb'/>
+ <elf-symbol name='security_inet_conn_established' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7da9e8ce'/>
+ <elf-symbol name='security_mmap_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa2d965c9'/>
+ <elf-symbol name='security_sctp_assoc_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc64416e5'/>
+ <elf-symbol name='security_sctp_bind_connect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbc794b62'/>
+ <elf-symbol name='security_sctp_sk_clone' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcea0c0ff'/>
+ <elf-symbol name='security_sk_clone' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe06141e9'/>
+ <elf-symbol name='security_sock_graft' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda10ec3'/>
+ <elf-symbol name='securityfs_create_dir' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e91f5eb'/>
+ <elf-symbol name='securityfs_create_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb153fb6c'/>
+ <elf-symbol name='securityfs_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe4aa3b49'/>
+ <elf-symbol name='send_sig' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b5e3e3c'/>
+ <elf-symbol name='send_sig_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e22fdd9'/>
+ <elf-symbol name='seq_lseek' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31721484'/>
+ <elf-symbol name='seq_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc60a82fc'/>
+ <elf-symbol name='seq_printf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c37292c'/>
+ <elf-symbol name='seq_putc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9805079c'/>
+ <elf-symbol name='seq_puts' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31ec8bf2'/>
+ <elf-symbol name='seq_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe8159286'/>
+ <elf-symbol name='seq_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7faf213'/>
+ <elf-symbol name='seq_vprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe4872d70'/>
+ <elf-symbol name='seq_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51d788ad'/>
+ <elf-symbol name='serdev_device_close' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x59cf53a6'/>
+ <elf-symbol name='serdev_device_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x778edf5'/>
+ <elf-symbol name='serdev_device_set_baudrate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd77d3ce7'/>
+ <elf-symbol name='serdev_device_set_flow_control' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3459f481'/>
+ <elf-symbol name='serdev_device_wait_until_sent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61087741'/>
+ <elf-symbol name='serdev_device_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a22a7ee'/>
+ <elf-symbol name='serdev_device_write_wakeup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1aec3e51'/>
+ <elf-symbol name='set_anon_super' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf7cdb7a'/>
+ <elf-symbol name='set_cpus_allowed_ptr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ede41bc'/>
+ <elf-symbol name='set_disk_ro' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98448222'/>
+ <elf-symbol name='set_normalized_timespec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c07ef16'/>
+ <elf-symbol name='set_normalized_timespec64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x365acda7'/>
+ <elf-symbol name='set_page_dirty_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe7198a1'/>
+ <elf-symbol name='set_task_boost' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa7807513'/>
+ <elf-symbol name='set_update_ipi_history_callback' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x199ca783'/>
+ <elf-symbol name='set_user_nice' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa720133b'/>
+ <elf-symbol name='sg_alloc_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5666192c'/>
+ <elf-symbol name='sg_alloc_table_from_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xafa9bab5'/>
+ <elf-symbol name='sg_copy_from_buffer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x905695ab'/>
+ <elf-symbol name='sg_copy_to_buffer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b8ab42'/>
+ <elf-symbol name='sg_free_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f5b4fe4'/>
+ <elf-symbol name='sg_init_one' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb320cc0e'/>
+ <elf-symbol name='sg_init_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf888ca21'/>
+ <elf-symbol name='sg_miter_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe2b9d3d5'/>
+ <elf-symbol name='sg_miter_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98b5271a'/>
+ <elf-symbol name='sg_miter_stop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5c4ae1d'/>
+ <elf-symbol name='sg_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87b8798d'/>
+ <elf-symbol name='sget' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x246ebd1f'/>
+ <elf-symbol name='shmem_read_mapping_page_gfp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x22e0f67c'/>
+ <elf-symbol name='shmem_truncate_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x78562075'/>
+ <elf-symbol name='sigprocmask' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a5fa363'/>
+ <elf-symbol name='simple_getattr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c0e6248'/>
+ <elf-symbol name='simple_read_from_buffer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x619cb7dd'/>
+ <elf-symbol name='simple_setattr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b0a4e73'/>
+ <elf-symbol name='simple_statfs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d93430'/>
+ <elf-symbol name='simple_strtoul' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20000329'/>
+ <elf-symbol name='simple_strtoull' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61b7b126'/>
+ <elf-symbol name='simple_write_to_buffer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb4f4766'/>
+ <elf-symbol name='single_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x869936da'/>
+ <elf-symbol name='single_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7b5c2a2'/>
+ <elf-symbol name='sk_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbbf3cfd'/>
+ <elf-symbol name='sk_busy_loop_end' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe590dea3'/>
+ <elf-symbol name='sk_common_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe59ad7b3'/>
+ <elf-symbol name='sk_filter_trim_cap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x21d87e9c'/>
+ <elf-symbol name='sk_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9fa254b0'/>
+ <elf-symbol name='sk_setup_caps' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x422272ad'/>
+ <elf-symbol name='skb_add_rx_frag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5369822e'/>
+ <elf-symbol name='skb_append_pagefrags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x54945c0d'/>
+ <elf-symbol name='skb_checksum' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x64fe282d'/>
+ <elf-symbol name='skb_clone' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8bb80cd6'/>
+ <elf-symbol name='skb_coalesce_rx_frag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79556ae9'/>
+ <elf-symbol name='skb_condense' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc1a86b6'/>
+ <elf-symbol name='skb_copy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x33371816'/>
+ <elf-symbol name='skb_copy_bits' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1667d5'/>
+ <elf-symbol name='skb_copy_datagram_iter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x52a92ac0'/>
+ <elf-symbol name='skb_copy_expand' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9d6580f'/>
+ <elf-symbol name='skb_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9ffb3f5'/>
+ <elf-symbol name='skb_free_datagram' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1157bec8'/>
+ <elf-symbol name='skb_page_frag_refill' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfea8b493'/>
+ <elf-symbol name='skb_partial_csum_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x485bdbff'/>
+ <elf-symbol name='skb_pull' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x523b0614'/>
+ <elf-symbol name='skb_push' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86a42f64'/>
+ <elf-symbol name='skb_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x99ba2d12'/>
+ <elf-symbol name='skb_queue_head' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa754075d'/>
+ <elf-symbol name='skb_queue_purge' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda9acf8f'/>
+ <elf-symbol name='skb_queue_tail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x586626af'/>
+ <elf-symbol name='skb_recv_datagram' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87e46d6f'/>
+ <elf-symbol name='skb_segment' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8efde95'/>
+ <elf-symbol name='skb_set_owner_w' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4c400328'/>
+ <elf-symbol name='skb_store_bits' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65f1f0b4'/>
+ <elf-symbol name='skb_to_sgvec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e1f6baf'/>
+ <elf-symbol name='skb_trim' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4c693971'/>
+ <elf-symbol name='skb_tstamp_tx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82ab7251'/>
+ <elf-symbol name='skip_spaces' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0a91bab'/>
+ <elf-symbol name='smp_call_function_single' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6228c21f'/>
+ <elf-symbol name='snd_card_disconnect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6927767c'/>
+ <elf-symbol name='snd_card_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa325e134'/>
+ <elf-symbol name='snd_card_new' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68fe9aae'/>
+ <elf-symbol name='snd_card_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd97db8d6'/>
+ <elf-symbol name='snd_component_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6ed930a'/>
+ <elf-symbol name='snd_compr_stop_error' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7ba8f54'/>
+ <elf-symbol name='snd_ctl_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x263eee54'/>
+ <elf-symbol name='snd_ctl_boolean_mono_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34bef80c'/>
+ <elf-symbol name='snd_ctl_enum_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81b69e41'/>
+ <elf-symbol name='snd_ctl_find_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa342ffbc'/>
+ <elf-symbol name='snd_ctl_make_virtual_master' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb3017d5'/>
+ <elf-symbol name='snd_ctl_new1' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f05ccd9'/>
+ <elf-symbol name='snd_ctl_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8451d9a'/>
+ <elf-symbol name='snd_ctl_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7c02b2a'/>
+ <elf-symbol name='snd_ctl_remove_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4686e1ad'/>
+ <elf-symbol name='snd_device_new' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb53451a2'/>
+ <elf-symbol name='snd_dma_alloc_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdcdd7e4'/>
+ <elf-symbol name='snd_dma_free_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ac910c9'/>
+ <elf-symbol name='snd_hwdep_new' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6aabab7c'/>
+ <elf-symbol name='snd_info_create_card_entry' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x222a5c8f'/>
+ <elf-symbol name='snd_info_create_module_entry' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb718889'/>
+ <elf-symbol name='snd_info_create_subdir' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcba3039c'/>
+ <elf-symbol name='snd_info_free_entry' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe414ba9f'/>
+ <elf-symbol name='snd_info_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa3ab220'/>
+ <elf-symbol name='snd_interval_refine' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4cda566'/>
+ <elf-symbol name='snd_jack_set_key' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14a9d58f'/>
+ <elf-symbol name='snd_pci_quirk_lookup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f3d5599'/>
+ <elf-symbol name='snd_pcm_add_chmap_ctls' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd72cd14f'/>
+ <elf-symbol name='snd_pcm_add_usr_ctls' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5127894e'/>
+ <elf-symbol name='snd_pcm_add_volume_ctls' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb1e2635'/>
+ <elf-symbol name='snd_pcm_format_physical_width' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68a24153'/>
+ <elf-symbol name='snd_pcm_format_width' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe56a9336'/>
+ <elf-symbol name='snd_pcm_hw_constraint_integer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe79b2d0'/>
+ <elf-symbol name='snd_pcm_hw_constraint_list' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcaf1b3e3'/>
+ <elf-symbol name='snd_pcm_hw_constraint_minmax' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f562e72'/>
+ <elf-symbol name='snd_pcm_hw_constraint_msbits' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5fd82d56'/>
+ <elf-symbol name='snd_pcm_hw_constraint_step' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4bcbd6e6'/>
+ <elf-symbol name='snd_pcm_hw_rule_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4d91bfd'/>
+ <elf-symbol name='snd_pcm_lib_free_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3cf0275'/>
+ <elf-symbol name='snd_pcm_lib_free_vmalloc_buffer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c2677c8'/>
+ <elf-symbol name='snd_pcm_lib_get_vmalloc_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa415bcc'/>
+ <elf-symbol name='snd_pcm_lib_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x769635bb'/>
+ <elf-symbol name='snd_pcm_lib_malloc_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66de4fd4'/>
+ <elf-symbol name='snd_pcm_lib_preallocate_pages_for_all' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27508528'/>
+ <elf-symbol name='snd_pcm_limit_hw_rates' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x52308a07'/>
+ <elf-symbol name='snd_pcm_new' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x153e6d4e'/>
+ <elf-symbol name='snd_pcm_period_elapsed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a95ccfe'/>
+ <elf-symbol name='snd_pcm_set_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x19d1cf17'/>
+ <elf-symbol name='snd_pcm_stop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f96bb0b'/>
+ <elf-symbol name='snd_pcm_suspend_all' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18cb590e'/>
+ <elf-symbol name='snd_power_wait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde728c63'/>
+ <elf-symbol name='snd_soc_add_component_controls' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x375b0acb'/>
+ <elf-symbol name='snd_soc_bytes_info_ext' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x506fdd0c'/>
+ <elf-symbol name='snd_soc_bytes_tlv_callback' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x901aa93d'/>
+ <elf-symbol name='snd_soc_card_change_online_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x411496eb'/>
+ <elf-symbol name='snd_soc_card_get_kcontrol' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9966005'/>
+ <elf-symbol name='snd_soc_card_jack_new' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0bd34a9'/>
+ <elf-symbol name='snd_soc_component_disable_pin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5fbb8da9'/>
+ <elf-symbol name='snd_soc_component_exit_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x99574f60'/>
+ <elf-symbol name='snd_soc_component_force_enable_pin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e783d75'/>
+ <elf-symbol name='snd_soc_component_init_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x49a6997b'/>
+ <elf-symbol name='snd_soc_component_read32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa1c85c75'/>
+ <elf-symbol name='snd_soc_component_set_sysclk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfc5333c1'/>
+ <elf-symbol name='snd_soc_component_update_bits' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e402dfc'/>
+ <elf-symbol name='snd_soc_component_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38f3e6b3'/>
+ <elf-symbol name='snd_soc_dai_get_channel_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4bab048'/>
+ <elf-symbol name='snd_soc_dai_set_channel_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6412dc35'/>
+ <elf-symbol name='snd_soc_dai_set_fmt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b11084d'/>
+ <elf-symbol name='snd_soc_dai_set_pll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1fee42'/>
+ <elf-symbol name='snd_soc_dai_set_sysclk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3560aac7'/>
+ <elf-symbol name='snd_soc_dai_set_tdm_slot' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff9bd194'/>
+ <elf-symbol name='snd_soc_dapm_add_routes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd105029'/>
+ <elf-symbol name='snd_soc_dapm_get_enum_double' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7966be59'/>
+ <elf-symbol name='snd_soc_dapm_get_volsw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2891cd9'/>
+ <elf-symbol name='snd_soc_dapm_ignore_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7e2f5e79'/>
+ <elf-symbol name='snd_soc_dapm_kcontrol_widget' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf86325a2'/>
+ <elf-symbol name='snd_soc_dapm_mixer_update_power' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x56d950de'/>
+ <elf-symbol name='snd_soc_dapm_mux_update_power' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7e6c389'/>
+ <elf-symbol name='snd_soc_dapm_new_controls' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab5533f7'/>
+ <elf-symbol name='snd_soc_dapm_new_widgets' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f3c4d15'/>
+ <elf-symbol name='snd_soc_dapm_put_enum_double' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f872730'/>
+ <elf-symbol name='snd_soc_dapm_put_volsw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18895695'/>
+ <elf-symbol name='snd_soc_dapm_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x509260ac'/>
+ <elf-symbol name='snd_soc_get_enum_double' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60e170b1'/>
+ <elf-symbol name='snd_soc_get_pcm_runtime' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6d96be6'/>
+ <elf-symbol name='snd_soc_get_volsw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7aff559d'/>
+ <elf-symbol name='snd_soc_get_volsw_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3c7ec23'/>
+ <elf-symbol name='snd_soc_get_volsw_sx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6db53b6c'/>
+ <elf-symbol name='snd_soc_info_enum_double' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2f18ae93'/>
+ <elf-symbol name='snd_soc_info_multi_ext' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4aaaf414'/>
+ <elf-symbol name='snd_soc_info_volsw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4fd82d6'/>
+ <elf-symbol name='snd_soc_info_volsw_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf70c7f4'/>
+ <elf-symbol name='snd_soc_info_volsw_sx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c467fcd'/>
+ <elf-symbol name='snd_soc_jack_report' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c63a6a6'/>
+ <elf-symbol name='snd_soc_new_compress' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc8eb6ab'/>
+ <elf-symbol name='snd_soc_of_get_dai_link_codecs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4cb7c5db'/>
+ <elf-symbol name='snd_soc_of_parse_audio_routing' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e3a0769'/>
+ <elf-symbol name='snd_soc_of_parse_card_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb7a5770'/>
+ <elf-symbol name='snd_soc_params_to_frame_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc8269f94'/>
+ <elf-symbol name='snd_soc_put_enum_double' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x30fd4a94'/>
+ <elf-symbol name='snd_soc_put_volsw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7593af43'/>
+ <elf-symbol name='snd_soc_put_volsw_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe3dbd606'/>
+ <elf-symbol name='snd_soc_put_volsw_sx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40f5071d'/>
+ <elf-symbol name='snd_soc_register_component' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b1312fb'/>
+ <elf-symbol name='snd_soc_rtdcom_lookup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf1af1779'/>
+ <elf-symbol name='snd_soc_set_runtime_hwparams' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd680a6c0'/>
+ <elf-symbol name='snd_soc_unregister_card' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37ee69df'/>
+ <elf-symbol name='snd_soc_unregister_component' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf1dfa59'/>
+ <elf-symbol name='snd_timer_interrupt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x182ed39c'/>
+ <elf-symbol name='snd_usb_enable_audio_stream' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x938860ed'/>
+ <elf-symbol name='snd_usb_find_csint_desc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff2c1e0'/>
+ <elf-symbol name='snmp_get_cpu_field' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc71e64a9'/>
+ <elf-symbol name='snprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28318305'/>
+ <elf-symbol name='soc_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf246d00'/>
+ <elf-symbol name='soc_device_to_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8cf46b85'/>
+ <elf-symbol name='soc_find_component' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x971ca7cb'/>
+ <elf-symbol name='soc_find_component_locked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a1a7dfd'/>
+ <elf-symbol name='sock_alloc_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d505df8'/>
+ <elf-symbol name='sock_alloc_send_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9f10a1d'/>
+ <elf-symbol name='sock_common_getsockopt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x119862ab'/>
+ <elf-symbol name='sock_common_setsockopt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc00ac0f1'/>
+ <elf-symbol name='sock_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7456b647'/>
+ <elf-symbol name='sock_create_kern' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd220f915'/>
+ <elf-symbol name='sock_diag_check_cookie' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdcdbc1e3'/>
+ <elf-symbol name='sock_diag_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c47e90'/>
+ <elf-symbol name='sock_diag_save_cookie' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe517a60b'/>
+ <elf-symbol name='sock_diag_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe5dea1f8'/>
+ <elf-symbol name='sock_get_timestamp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa3c990a2'/>
+ <elf-symbol name='sock_i_ino' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5bab8717'/>
+ <elf-symbol name='sock_i_uid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xedb38f28'/>
+ <elf-symbol name='sock_init_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c346a05'/>
+ <elf-symbol name='sock_kmalloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3907ed22'/>
+ <elf-symbol name='sock_no_accept' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6d881ba'/>
+ <elf-symbol name='sock_no_getsockopt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8312419'/>
+ <elf-symbol name='sock_no_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d7a51ab'/>
+ <elf-symbol name='sock_no_listen' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x882f9e55'/>
+ <elf-symbol name='sock_no_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c63c1cf'/>
+ <elf-symbol name='sock_no_sendpage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7596f68a'/>
+ <elf-symbol name='sock_no_setsockopt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3ac8bfe'/>
+ <elf-symbol name='sock_no_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84e25bfe'/>
+ <elf-symbol name='sock_no_socketpair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf523aa4'/>
+ <elf-symbol name='sock_prot_inuse_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0498ae7'/>
+ <elf-symbol name='sock_queue_rcv_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x546a26b0'/>
+ <elf-symbol name='sock_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x29f7526a'/>
+ <elf-symbol name='sock_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa10e803a'/>
+ <elf-symbol name='sock_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62737e1d'/>
+ <elf-symbol name='sock_wake_async' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9522de0b'/>
+ <elf-symbol name='sock_wfree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3abefa4c'/>
+ <elf-symbol name='sort' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe3a53f4c'/>
+ <elf-symbol name='spi_bus_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x164e2f9a'/>
+ <elf-symbol name='spi_bus_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb1c16cb3'/>
+ <elf-symbol name='spi_register_controller' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x19a14577'/>
+ <elf-symbol name='spi_setup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2c30e7d'/>
+ <elf-symbol name='spi_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42ab1f60'/>
+ <elf-symbol name='spi_sync_locked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7395809'/>
+ <elf-symbol name='spi_unregister_controller' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xce7e0bc3'/>
+ <elf-symbol name='split_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe466d3a'/>
+ <elf-symbol name='spmi_controller_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6c33645'/>
+ <elf-symbol name='spmi_controller_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12a5775'/>
+ <elf-symbol name='spmi_controller_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb23f5a5b'/>
+ <elf-symbol name='spmi_ext_register_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd05cf7a'/>
+ <elf-symbol name='spmi_ext_register_readl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e693a79'/>
+ <elf-symbol name='spmi_ext_register_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8162dce'/>
+ <elf-symbol name='spmi_ext_register_writel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ee66a6b'/>
+ <elf-symbol name='spmi_register_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x326c501b'/>
+ <elf-symbol name='spmi_register_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf886d55'/>
+ <elf-symbol name='spmi_register_zero_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc40cf167'/>
+ <elf-symbol name='sprint_symbol' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x661601de'/>
+ <elf-symbol name='sprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91715312'/>
+ <elf-symbol name='srcu_init_notifier_head' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd6b8cf2'/>
+ <elf-symbol name='srcu_notifier_call_chain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0b33ad4'/>
+ <elf-symbol name='srcu_notifier_chain_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x89c615ad'/>
+ <elf-symbol name='srcu_notifier_chain_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf25b858'/>
+ <elf-symbol name='sscanf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20c55ae0'/>
+ <elf-symbol name='strcasecmp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaafdc258'/>
+ <elf-symbol name='strcat' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61651be'/>
+ <elf-symbol name='strchr' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0x349cba85'/>
+ <elf-symbol name='strchrnul' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xceab0311'/>
+ <elf-symbol name='strcmp' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0xe2d5255a'/>
+ <elf-symbol name='strcpy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe914e41e'/>
+ <elf-symbol name='strcspn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ac5d3cb'/>
+ <elf-symbol name='strim' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77bc13a0'/>
+ <elf-symbol name='string_get_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48a91171'/>
+ <elf-symbol name='strlcat' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9c0b663'/>
+ <elf-symbol name='strlcpy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5792f848'/>
+ <elf-symbol name='strlen' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0x98cf60b3'/>
+ <elf-symbol name='strncasecmp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x96b29254'/>
+ <elf-symbol name='strncat' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e2b40d2'/>
+ <elf-symbol name='strnchr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4841bdee'/>
+ <elf-symbol name='strncmp' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0x5a921311'/>
+ <elf-symbol name='strncpy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9166fada'/>
+ <elf-symbol name='strncpy_from_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24428be5'/>
+ <elf-symbol name='strndup_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41482d8b'/>
+ <elf-symbol name='strnlen' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0xa916b694'/>
+ <elf-symbol name='strnstr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc310b981'/>
+ <elf-symbol name='strpbrk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a1dfd65'/>
+ <elf-symbol name='strrchr' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0x9f984513'/>
+ <elf-symbol name='strreplace' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7410aba2'/>
+ <elf-symbol name='strscpy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd64e639'/>
+ <elf-symbol name='strsep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85df9b6c'/>
+ <elf-symbol name='strstr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e6d26a8'/>
+ <elf-symbol name='submit_bio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb626c2a'/>
+ <elf-symbol name='suspend_set_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ac11b74'/>
+ <elf-symbol name='suspend_valid_only_mem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2e764e8'/>
+ <elf-symbol name='sync_file_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61d3a6aa'/>
+ <elf-symbol name='sync_file_get_fence' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2d56a49'/>
+ <elf-symbol name='sync_filesystem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbe348ba3'/>
+ <elf-symbol name='synchronize_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe523ad75'/>
+ <elf-symbol name='synchronize_net' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x609f1c7e'/>
+ <elf-symbol name='synchronize_rcu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6091797f'/>
+ <elf-symbol name='synchronize_srcu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47056148'/>
+ <elf-symbol name='syscon_node_to_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf17df6a9'/>
+ <elf-symbol name='syscon_regmap_lookup_by_phandle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5abd2c8e'/>
+ <elf-symbol name='sysfs_create_bin_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27a3a155'/>
+ <elf-symbol name='sysfs_create_file_ns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x378f1cf9'/>
+ <elf-symbol name='sysfs_create_files' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4fa12746'/>
+ <elf-symbol name='sysfs_create_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a0c8109'/>
+ <elf-symbol name='sysfs_create_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c35623'/>
+ <elf-symbol name='sysfs_create_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18320d4b'/>
+ <elf-symbol name='sysfs_emit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x80b14da5'/>
+ <elf-symbol name='sysfs_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7e1288'/>
+ <elf-symbol name='sysfs_remove_bin_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e09439d'/>
+ <elf-symbol name='sysfs_remove_file_ns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9805d77f'/>
+ <elf-symbol name='sysfs_remove_files' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5c4d38'/>
+ <elf-symbol name='sysfs_remove_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a18c6b6'/>
+ <elf-symbol name='sysfs_remove_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e23e2b1'/>
+ <elf-symbol name='sysfs_remove_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x207e08b7'/>
+ <elf-symbol name='sysfs_streq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x222e7ce2'/>
+ <elf-symbol name='tasklet_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9545af6d'/>
+ <elf-symbol name='tasklet_kill' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82072614'/>
+ <elf-symbol name='thermal_cdev_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb862a287'/>
+ <elf-symbol name='thermal_cooling_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3dd8f1f4'/>
+ <elf-symbol name='thermal_of_cooling_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xafb08c61'/>
+ <elf-symbol name='thermal_zone_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9812ac21'/>
+ <elf-symbol name='thermal_zone_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7482002a'/>
+ <elf-symbol name='thermal_zone_device_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb960dc3d'/>
+ <elf-symbol name='thermal_zone_get_cdev_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10e1ff6a'/>
+ <elf-symbol name='thermal_zone_get_temp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0709eed'/>
+ <elf-symbol name='thermal_zone_get_zone_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa3819878'/>
+ <elf-symbol name='thermal_zone_of_sensor_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x714b14c9'/>
+ <elf-symbol name='thermal_zone_of_sensor_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc8beb3ac'/>
+ <elf-symbol name='tick_broadcast_oneshot_control' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbfe5616d'/>
+ <elf-symbol name='tick_nohz_get_sleep_length' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1939cb0f'/>
+ <elf-symbol name='time64_to_tm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfff5afc'/>
+ <elf-symbol name='timer_reduce' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75c21753'/>
+ <elf-symbol name='timerqueue_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe73e56d0'/>
+ <elf-symbol name='timerqueue_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa04635bf'/>
+ <elf-symbol name='timerqueue_iterate_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ffdacf3'/>
+ <elf-symbol name='timespec64_to_jiffies' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf93b9d8'/>
+ <elf-symbol name='touch_atime' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x467801d3'/>
+ <elf-symbol name='trace_define_field' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b07f4ad'/>
+ <elf-symbol name='trace_event_buffer_commit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x549bc3a'/>
+ <elf-symbol name='trace_event_buffer_reserve' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7ac142f'/>
+ <elf-symbol name='trace_event_ignore_this_pid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63755092'/>
+ <elf-symbol name='trace_event_raw_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x332f7707'/>
+ <elf-symbol name='trace_event_reg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2aabd82'/>
+ <elf-symbol name='trace_handle_return' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdaddbd5a'/>
+ <elf-symbol name='trace_output_call' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6895b99e'/>
+ <elf-symbol name='trace_print_array_seq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcfb4a296'/>
+ <elf-symbol name='trace_print_flags_seq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ebd4be4'/>
+ <elf-symbol name='trace_print_hex_seq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7d16b61'/>
+ <elf-symbol name='trace_print_symbols_seq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61520529'/>
+ <elf-symbol name='trace_raw_output_prep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x830e5e3a'/>
+ <elf-symbol name='trace_seq_printf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11caddc7'/>
+ <elf-symbol name='tracing_off' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7944e0fc'/>
+ <elf-symbol name='truncate_inode_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x728ccc88'/>
+ <elf-symbol name='try_module_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd1f9d731'/>
+ <elf-symbol name='try_to_del_timer_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfaf9e645'/>
+ <elf-symbol name='try_wait_for_completion' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4005f38c'/>
+ <elf-symbol name='ttm_bo_add_to_lru' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf0e8f47d'/>
+ <elf-symbol name='ttm_bo_del_sub_from_lru' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7e0336b'/>
+ <elf-symbol name='ttm_bo_device_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4220bdcf'/>
+ <elf-symbol name='ttm_bo_device_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88975fb1'/>
+ <elf-symbol name='ttm_bo_dma_acc_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6ba2254'/>
+ <elf-symbol name='ttm_bo_eviction_valuable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c0de463'/>
+ <elf-symbol name='ttm_bo_global_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x564e1aee'/>
+ <elf-symbol name='ttm_bo_global_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e8dd264'/>
+ <elf-symbol name='ttm_bo_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7dd546ca'/>
+ <elf-symbol name='ttm_bo_init_mm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad8db2d2'/>
+ <elf-symbol name='ttm_bo_kmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53e06d88'/>
+ <elf-symbol name='ttm_bo_kunmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c9afd6a'/>
+ <elf-symbol name='ttm_bo_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6be3a521'/>
+ <elf-symbol name='ttm_bo_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc050d3e7'/>
+ <elf-symbol name='ttm_bo_validate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c58d913'/>
+ <elf-symbol name='ttm_bo_wait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0d0f912'/>
+ <elf-symbol name='ttm_dma_tt_fini' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfc6c7f68'/>
+ <elf-symbol name='ttm_dma_tt_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b172473'/>
+ <elf-symbol name='ttm_eu_backoff_reservation' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28c206a3'/>
+ <elf-symbol name='ttm_eu_fence_buffer_objects' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbe2d390d'/>
+ <elf-symbol name='ttm_eu_reserve_buffers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76c6828b'/>
+ <elf-symbol name='ttm_mem_global_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92e3f3eb'/>
+ <elf-symbol name='ttm_mem_global_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae23e2b'/>
+ <elf-symbol name='ttm_tt_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbff92e87'/>
+ <elf-symbol name='tty_flip_buffer_push' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e65773c'/>
+ <elf-symbol name='tty_insert_flip_string_fixed_flag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6f90494'/>
+ <elf-symbol name='typec_altmode_attention' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x95fb8a3d'/>
+ <elf-symbol name='typec_altmode_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1cf26999'/>
+ <elf-symbol name='typec_altmode_update_active' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44f9e69c'/>
+ <elf-symbol name='typec_altmode_vdm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa7f05ef6'/>
+ <elf-symbol name='typec_find_port_data_role' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9049491e'/>
+ <elf-symbol name='typec_find_port_power_role' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeafc1eb8'/>
+ <elf-symbol name='typec_find_power_role' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d1e301d'/>
+ <elf-symbol name='typec_match_altmode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf214b484'/>
+ <elf-symbol name='typec_partner_register_altmode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ec0290c'/>
+ <elf-symbol name='typec_partner_set_identity' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x493159cc'/>
+ <elf-symbol name='typec_port_register_altmode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7e71432'/>
+ <elf-symbol name='typec_register_partner' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x22ba861'/>
+ <elf-symbol name='typec_register_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x208451b6'/>
+ <elf-symbol name='typec_set_data_role' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f2c6469'/>
+ <elf-symbol name='typec_set_mode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x54c93810'/>
+ <elf-symbol name='typec_set_orientation' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x36852716'/>
+ <elf-symbol name='typec_set_pwr_opmode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x33fd62de'/>
+ <elf-symbol name='typec_set_pwr_role' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7e2998e7'/>
+ <elf-symbol name='typec_set_vconn_role' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ac3a632'/>
+ <elf-symbol name='typec_unregister_altmode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f88e267'/>
+ <elf-symbol name='typec_unregister_partner' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9cad8da6'/>
+ <elf-symbol name='typec_unregister_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda0a9c4c'/>
+ <elf-symbol name='uart_add_one_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6442a0a'/>
+ <elf-symbol name='uart_console_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x122bf1ea'/>
+ <elf-symbol name='uart_console_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd534dfbe'/>
+ <elf-symbol name='uart_get_baud_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15eb57f8'/>
+ <elf-symbol name='uart_insert_char' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x21fe2877'/>
+ <elf-symbol name='uart_parse_options' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f72a987'/>
+ <elf-symbol name='uart_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa94808af'/>
+ <elf-symbol name='uart_remove_one_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8cb7255'/>
+ <elf-symbol name='uart_resume_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2eff2b80'/>
+ <elf-symbol name='uart_set_options' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ebf66ea'/>
+ <elf-symbol name='uart_suspend_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb9e4123'/>
+ <elf-symbol name='uart_unregister_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2ae2cbed'/>
+ <elf-symbol name='uart_update_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc67c91d8'/>
+ <elf-symbol name='uart_write_wakeup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x264f3034'/>
+ <elf-symbol name='uio_unregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93cf2efb'/>
+ <elf-symbol name='unlock_new_inode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1bb2f65d'/>
+ <elf-symbol name='unlock_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x127d115f'/>
+ <elf-symbol name='unlock_rename' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe95dc441'/>
+ <elf-symbol name='unmap_kernel_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x997c4347'/>
+ <elf-symbol name='unmap_mapping_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb49b369'/>
+ <elf-symbol name='unmapped_area_topdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x900e2540'/>
+ <elf-symbol name='unregister_blkdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5a459dc'/>
+ <elf-symbol name='unregister_chrdev_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6091b333'/>
+ <elf-symbol name='unregister_filesystem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab22abb0'/>
+ <elf-symbol name='unregister_inet6addr_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2fe252cc'/>
+ <elf-symbol name='unregister_inetaddr_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe029963'/>
+ <elf-symbol name='unregister_net_sysctl_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc57c6d80'/>
+ <elf-symbol name='unregister_netdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf5528a60'/>
+ <elf-symbol name='unregister_netdevice_many' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9fdecc31'/>
+ <elf-symbol name='unregister_netdevice_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d0d6206'/>
+ <elf-symbol name='unregister_netdevice_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef0ce401'/>
+ <elf-symbol name='unregister_netevent_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4fe1eddf'/>
+ <elf-symbol name='unregister_pernet_subsys' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e6796f0'/>
+ <elf-symbol name='unregister_pm_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7681946c'/>
+ <elf-symbol name='unregister_restart_handler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40d59096'/>
+ <elf-symbol name='unregister_shrinker' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf906651'/>
+ <elf-symbol name='unregister_syscore_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa1eb910'/>
+ <elf-symbol name='unregister_sysctl_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6be0d38b'/>
+ <elf-symbol name='unregister_virtio_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5675202'/>
+ <elf-symbol name='unregister_virtio_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6697b267'/>
+ <elf-symbol name='up' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf2a6966'/>
+ <elf-symbol name='up_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xafeb1d3f'/>
+ <elf-symbol name='up_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe22cbfa0'/>
+ <elf-symbol name='update_devfreq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc9134f1'/>
+ <elf-symbol name='usb_add_gadget_udc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadee9940'/>
+ <elf-symbol name='usb_add_hcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd05a340'/>
+ <elf-symbol name='usb_add_phy_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f7d0e32'/>
+ <elf-symbol name='usb_alloc_coherent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe3975f1c'/>
+ <elf-symbol name='usb_assign_descriptors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d3b320c'/>
+ <elf-symbol name='usb_composite_setup_continue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48581c0e'/>
+ <elf-symbol name='usb_create_hcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf64ceded'/>
+ <elf-symbol name='usb_create_shared_hcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb8877bb'/>
+ <elf-symbol name='usb_del_gadget_udc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a14a283'/>
+ <elf-symbol name='usb_disabled' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x19a304ba'/>
+ <elf-symbol name='usb_ep_alloc_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x872ebb4c'/>
+ <elf-symbol name='usb_ep_autoconfig' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3482eb55'/>
+ <elf-symbol name='usb_ep_autoconfig_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24bae504'/>
+ <elf-symbol name='usb_ep_autoconfig_ss' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28654f0a'/>
+ <elf-symbol name='usb_ep_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef3a71a7'/>
+ <elf-symbol name='usb_ep_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68b3417c'/>
+ <elf-symbol name='usb_ep_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x17feca52'/>
+ <elf-symbol name='usb_ep_free_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ad1a611'/>
+ <elf-symbol name='usb_ep_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8361bd0f'/>
+ <elf-symbol name='usb_ep_set_halt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x684299d7'/>
+ <elf-symbol name='usb_ep_set_maxpacket_limit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81382e8a'/>
+ <elf-symbol name='usb_free_all_descriptors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x738a838d'/>
+ <elf-symbol name='usb_free_coherent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa92d213c'/>
+ <elf-symbol name='usb_func_ep_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb1698de4'/>
+ <elf-symbol name='usb_func_wakeup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d3c93e'/>
+ <elf-symbol name='usb_function_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d9dfa76'/>
+ <elf-symbol name='usb_function_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7708257a'/>
+ <elf-symbol name='usb_gadget_giveback_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7d0bc23'/>
+ <elf-symbol name='usb_gadget_map_request_by_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5025ceea'/>
+ <elf-symbol name='usb_gadget_set_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa986423c'/>
+ <elf-symbol name='usb_gadget_udc_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53688ac4'/>
+ <elf-symbol name='usb_gadget_unmap_request_by_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93cb087f'/>
+ <elf-symbol name='usb_gadget_vbus_connect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc20cb34a'/>
+ <elf-symbol name='usb_gadget_vbus_disconnect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x718a50a'/>
+ <elf-symbol name='usb_gadget_vbus_draw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x916f1078'/>
+ <elf-symbol name='usb_gadget_wakeup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7f26dde'/>
+ <elf-symbol name='usb_get_controller_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e6e7d4f'/>
+ <elf-symbol name='usb_get_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3417924d'/>
+ <elf-symbol name='usb_get_dr_mode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3b684136'/>
+ <elf-symbol name='usb_get_maximum_speed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3cf3ac3c'/>
+ <elf-symbol name='usb_get_sec_event_ring_phys_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2ad6468'/>
+ <elf-symbol name='usb_get_xfer_ring_phys_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x358b2247'/>
+ <elf-symbol name='usb_gsi_ep_op' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x21e5cd51'/>
+ <elf-symbol name='usb_hcd_check_unlink_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf0a9320f'/>
+ <elf-symbol name='usb_hcd_giveback_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x564f47b7'/>
+ <elf-symbol name='usb_hcd_is_primary_hcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x780741f7'/>
+ <elf-symbol name='usb_hcd_link_urb_to_ep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x35d3e756'/>
+ <elf-symbol name='usb_hcd_platform_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcda15652'/>
+ <elf-symbol name='usb_hcd_poll_rh_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d146c65'/>
+ <elf-symbol name='usb_hcd_resume_root_hub' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc8087b2a'/>
+ <elf-symbol name='usb_hcd_unlink_urb_from_ep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71c56e5f'/>
+ <elf-symbol name='usb_ifnum_to_if' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa19fc2b1'/>
+ <elf-symbol name='usb_interface_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe55d502'/>
+ <elf-symbol name='usb_os_desc_prepare_interf_dir' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9173b1a'/>
+ <elf-symbol name='usb_put_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66069914'/>
+ <elf-symbol name='usb_put_function_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69d6014'/>
+ <elf-symbol name='usb_put_hcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9807a10c'/>
+ <elf-symbol name='usb_register_atomic_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa7d80306'/>
+ <elf-symbol name='usb_register_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x89bbafc6'/>
+ <elf-symbol name='usb_remove_hcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x300b8320'/>
+ <elf-symbol name='usb_remove_phy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d90793d'/>
+ <elf-symbol name='usb_sec_event_ring_cleanup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb454700c'/>
+ <elf-symbol name='usb_sec_event_ring_setup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9b58992'/>
+ <elf-symbol name='usb_speed_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77ae495d'/>
+ <elf-symbol name='usb_stop_endpoint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x621ebb1a'/>
+ <elf-symbol name='usb_string_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ff9715d'/>
+ <elf-symbol name='usb_unregister_atomic_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11dca50e'/>
+ <elf-symbol name='usb_unregister_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x811dc334'/>
+ <elf-symbol name='user_path_at_empty' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x16a243c4'/>
+ <elf-symbol name='usleep_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12a38747'/>
+ <elf-symbol name='utf16s_to_utf8s' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xabf32f29'/>
+ <elf-symbol name='v4l2_ctrl_find' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xce71a0eb'/>
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+ <elf-symbol name='v4l2_s_ctrl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c19d9d2'/>
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+ <elf-symbol name='vb2_buffer_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb375cf9'/>
+ <elf-symbol name='vb2_dqbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66d4549'/>
+ <elf-symbol name='vb2_fop_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x96c1604b'/>
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+ <elf-symbol name='vb2_fop_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5def86d4'/>
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+ <elf-symbol name='vb2_ioctl_create_bufs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc84f578e'/>
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+ <elf-symbol name='vb2_ioctl_expbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa2cb7e51'/>
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+ <elf-symbol name='vb2_ioctl_reqbufs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x896e80ab'/>
+ <elf-symbol name='vb2_ioctl_streamoff' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x94c52c75'/>
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+ <elf-symbol name='vb2_plane_vaddr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba2fc980'/>
+ <elf-symbol name='vb2_qbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10cc6975'/>
+ <elf-symbol name='vb2_queue_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8987e48d'/>
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+ <elf-symbol name='vb2_streamon' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50259b09'/>
+ <elf-symbol name='vfree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x999e8297'/>
+ <elf-symbol name='vfs_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf223d08f'/>
+ <elf-symbol name='vfs_fallocate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe3198e0b'/>
+ <elf-symbol name='vfs_fsync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x436744cf'/>
+ <elf-symbol name='vfs_getattr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9f871507'/>
+ <elf-symbol name='vfs_getxattr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x850bac75'/>
+ <elf-symbol name='vfs_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15e9ef16'/>
+ <elf-symbol name='vfs_listxattr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb129f489'/>
+ <elf-symbol name='vfs_mkdir' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2c2e041'/>
+ <elf-symbol name='vfs_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87759c20'/>
+ <elf-symbol name='vfs_rename' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8cc479bf'/>
+ <elf-symbol name='vfs_rmdir' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69cf8186'/>
+ <elf-symbol name='vfs_setxattr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa26163b8'/>
+ <elf-symbol name='vfs_statx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfef8cf74'/>
+ <elf-symbol name='vfs_truncate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad66160e'/>
+ <elf-symbol name='vfs_unlink' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4093296b'/>
+ <elf-symbol name='vfs_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9bd098c8'/>
+ <elf-symbol name='video_devdata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x714d2476'/>
+ <elf-symbol name='video_device_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdcd66c73'/>
+ <elf-symbol name='video_device_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0c3abeb'/>
+ <elf-symbol name='video_device_release_empty' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb13e9da'/>
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+ <elf-symbol name='video_unregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2cbd4de'/>
+ <elf-symbol name='video_usercopy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8135655a'/>
+ <elf-symbol name='virtio_check_driver_offered_feature' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d699c91'/>
+ <elf-symbol name='virtio_config_changed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x43bc26a2'/>
+ <elf-symbol name='virtio_device_freeze' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98b8fe1f'/>
+ <elf-symbol name='virtio_device_restore' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf70e14ed'/>
+ <elf-symbol name='virtqueue_add_inbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85bb2d05'/>
+ <elf-symbol name='virtqueue_add_inbuf_ctx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff6cae8a'/>
+ <elf-symbol name='virtqueue_add_outbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa5b7bf1'/>
+ <elf-symbol name='virtqueue_add_sgs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88fea46f'/>
+ <elf-symbol name='virtqueue_detach_unused_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24c2f8f6'/>
+ <elf-symbol name='virtqueue_disable_cb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadbf6f2e'/>
+ <elf-symbol name='virtqueue_enable_cb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x867ff303'/>
+ <elf-symbol name='virtqueue_enable_cb_delayed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e09a26e'/>
+ <elf-symbol name='virtqueue_enable_cb_prepare' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x46de0d'/>
+ <elf-symbol name='virtqueue_get_avail_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c4c7449'/>
+ <elf-symbol name='virtqueue_get_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8069cb93'/>
+ <elf-symbol name='virtqueue_get_buf_ctx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55dd1fe6'/>
+ <elf-symbol name='virtqueue_get_desc_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55582b9b'/>
+ <elf-symbol name='virtqueue_get_used_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf31e06c0'/>
+ <elf-symbol name='virtqueue_get_vring_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69b4d417'/>
+ <elf-symbol name='virtqueue_is_broken' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad7e1045'/>
+ <elf-symbol name='virtqueue_kick' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2fc5775a'/>
+ <elf-symbol name='virtqueue_kick_prepare' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea5cf334'/>
+ <elf-symbol name='virtqueue_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c97d725'/>
+ <elf-symbol name='virtqueue_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ba994da'/>
+ <elf-symbol name='vm_get_page_prot' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c91e17c'/>
+ <elf-symbol name='vm_insert_mixed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf5a250d0'/>
+ <elf-symbol name='vm_insert_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9e19bd5'/>
+ <elf-symbol name='vm_insert_pfn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x212b04ca'/>
+ <elf-symbol name='vm_iomap_memory' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x96a9141d'/>
+ <elf-symbol name='vm_map_ram' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4892403'/>
+ <elf-symbol name='vm_unmap_ram' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3fd2571'/>
+ <elf-symbol name='vmalloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6ee688f'/>
+ <elf-symbol name='vmalloc_to_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4ac6f11'/>
+ <elf-symbol name='vmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6873104a'/>
+ <elf-symbol name='vmemdup_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x90576ec4'/>
+ <elf-symbol name='vprintk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x933eff89'/>
+ <elf-symbol name='vring_create_virtqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76c6464c'/>
+ <elf-symbol name='vring_del_virtqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6e33115'/>
+ <elf-symbol name='vring_interrupt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff05fa13'/>
+ <elf-symbol name='vring_transport_features' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62a4f76a'/>
+ <elf-symbol name='vscnprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae5db1fb'/>
+ <elf-symbol name='vsnprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ab2e3d5'/>
+ <elf-symbol name='vunmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x94961283'/>
+ <elf-symbol name='vzalloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40a9b349'/>
+ <elf-symbol name='wait_for_completion' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6de13801'/>
+ <elf-symbol name='wait_for_completion_interruptible' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x262e823a'/>
+ <elf-symbol name='wait_for_completion_interruptible_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa33c0eac'/>
+ <elf-symbol name='wait_for_completion_killable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa096b889'/>
+ <elf-symbol name='wait_for_completion_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d1ff60a'/>
+ <elf-symbol name='wait_woken' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6ef873a'/>
+ <elf-symbol name='wake_up_process' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e810b01'/>
+ <elf-symbol name='wakeup_source_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xacd44a6c'/>
+ <elf-symbol name='wakeup_source_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8267b860'/>
+ <elf-symbol name='wiphy_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x574caf1c'/>
+ <elf-symbol name='wiphy_new_nm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca5a915c'/>
+ <elf-symbol name='wiphy_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcae00eeb'/>
+ <elf-symbol name='wiphy_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac9394b'/>
+ <elf-symbol name='wireless_send_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1aec6993'/>
+ <elf-symbol name='woken_wake_function' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcead4d5a'/>
+ <elf-symbol name='work_busy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2395379b'/>
+ <elf-symbol name='ww_mutex_lock_interruptible' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47771d6d'/>
+ <elf-symbol name='ww_mutex_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69a3e4f2'/>
+ <elf-symbol name='xdp_do_flush_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x559b27f8'/>
+ <elf-symbol name='xdp_do_redirect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb99330c8'/>
+ <elf-symbol name='xdp_return_frame' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b6d888c'/>
+ <elf-symbol name='xdp_return_frame_rx_napi' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe12acf7c'/>
+ <elf-symbol name='xdp_rxq_info_reg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb261589b'/>
+ <elf-symbol name='xdp_rxq_info_reg_mem_model' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe70e1053'/>
+ <elf-symbol name='xdp_rxq_info_unreg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa04fce56'/>
+ <elf-symbol name='xhci_gen_setup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf5b9638'/>
+ <elf-symbol name='xhci_init_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7a5c2c6'/>
+ <elf-symbol name='xhci_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x612e685a'/>
+ <elf-symbol name='xhci_run' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9e6c1ea'/>
+ <elf-symbol name='xhci_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f8adb99'/>
+ <elf-symbol name='xt_check_match' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfdb5789d'/>
+ <elf-symbol name='xt_check_target' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x299898b4'/>
+ <elf-symbol name='xt_compat_add_offset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x823edea5'/>
+ <elf-symbol name='xt_compat_calc_jump' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7fae024'/>
+ <elf-symbol name='xt_compat_flush_offsets' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e27719'/>
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+ <return type-id='95e97e5e'/>
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+ <function-decl name='get_unmapped_area' mangled-name='get_unmapped_area' filepath='include/linux/mm.h' line='2366' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_unmapped_area'>
+ <parameter type-id='77e79a4b'/>
+ <parameter type-id='7359adad'/>
+ <parameter type-id='7359adad'/>
+ <parameter type-id='7359adad'/>
+ <parameter type-id='7359adad'/>
+ <return type-id='7359adad'/>
+ </function-decl>
+ <pointer-type-def type-id='f19fdb93' size-in-bits='64' id='9b58df93'/>
+ </abi-instr>
+ <abi-instr address-size='64' path='arch/arm64/lib/atomic_ll_sc.c' language='LANG_C89'>
+ <pointer-type-def type-id='28ee064c' size-in-bits='64' id='54ffcfb9'/>
+ <function-decl name='__ll_sc_atomic_add' mangled-name='__ll_sc_atomic_add' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='113' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__ll_sc_atomic_add'>
+ <parameter type-id='95e97e5e' name='i' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='113' column='1'/>
+ <parameter type-id='8a47abc3' name='v' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='113' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='__ll_sc_atomic_add_return' mangled-name='__ll_sc_atomic_add_return' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='113' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__ll_sc_atomic_add_return'>
+ <parameter type-id='95e97e5e' name='i' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='113' column='1'/>
+ <parameter type-id='8a47abc3' name='v' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='113' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='__ll_sc_atomic_fetch_add' mangled-name='__ll_sc_atomic_fetch_add' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='113' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__ll_sc_atomic_fetch_add'>
+ <parameter type-id='95e97e5e' name='i' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='113' column='1'/>
+ <parameter type-id='8a47abc3' name='v' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='113' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='__ll_sc_atomic_sub' mangled-name='__ll_sc_atomic_sub' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='114' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__ll_sc_atomic_sub'>
+ <parameter type-id='95e97e5e' name='i' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='114' column='1'/>
+ <parameter type-id='8a47abc3' name='v' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='114' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='__ll_sc_atomic_sub_return' mangled-name='__ll_sc_atomic_sub_return' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='114' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__ll_sc_atomic_sub_return'>
+ <parameter type-id='95e97e5e' name='i' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='114' column='1'/>
+ <parameter type-id='8a47abc3' name='v' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='114' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='__ll_sc_atomic_or' mangled-name='__ll_sc_atomic_or' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='126' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__ll_sc_atomic_or'>
+ <parameter type-id='95e97e5e' name='i' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='126' column='1'/>
+ <parameter type-id='8a47abc3' name='v' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='126' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='__ll_sc_atomic64_add' mangled-name='__ll_sc_atomic64_add' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='207' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__ll_sc_atomic64_add'>
+ <parameter type-id='bd54fe1a' name='i' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='207' column='1'/>
+ <parameter type-id='54ffcfb9' name='v' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='207' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='__ll_sc_atomic64_add_return' mangled-name='__ll_sc_atomic64_add_return' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='207' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__ll_sc_atomic64_add_return'>
+ <parameter type-id='bd54fe1a' name='i' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='207' column='1'/>
+ <parameter type-id='54ffcfb9' name='v' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='207' column='1'/>
+ <return type-id='bd54fe1a'/>
+ </function-decl>
+ <function-decl name='__ll_sc_atomic64_sub' mangled-name='__ll_sc_atomic64_sub' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='208' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__ll_sc_atomic64_sub'>
+ <parameter type-id='bd54fe1a' name='i' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='208' column='1'/>
+ <parameter type-id='54ffcfb9' name='v' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='208' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='__ll_sc_atomic64_sub_return' mangled-name='__ll_sc_atomic64_sub_return' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='208' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__ll_sc_atomic64_sub_return'>
+ <parameter type-id='bd54fe1a' name='i' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='208' column='1'/>
+ <parameter type-id='54ffcfb9' name='v' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='208' column='1'/>
+ <return type-id='bd54fe1a'/>
+ </function-decl>
+ <function-decl name='__ll_sc_atomic64_andnot' mangled-name='__ll_sc_atomic64_andnot' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='219' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__ll_sc_atomic64_andnot'>
+ <parameter type-id='bd54fe1a' name='i' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='219' column='1'/>
+ <parameter type-id='54ffcfb9' name='v' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='219' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='__ll_sc_atomic64_fetch_andnot' mangled-name='__ll_sc_atomic64_fetch_andnot' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='219' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__ll_sc_atomic64_fetch_andnot'>
+ <parameter type-id='bd54fe1a' name='i' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='219' column='1'/>
+ <parameter type-id='54ffcfb9' name='v' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='219' column='1'/>
+ <return type-id='bd54fe1a'/>
+ </function-decl>
+ <function-decl name='__ll_sc_atomic64_fetch_andnot_release' mangled-name='__ll_sc_atomic64_fetch_andnot_release' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='219' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__ll_sc_atomic64_fetch_andnot_release'>
+ <parameter type-id='bd54fe1a' name='i' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='219' column='1'/>
+ <parameter type-id='54ffcfb9' name='v' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='219' column='1'/>
+ <return type-id='bd54fe1a'/>
+ </function-decl>
+ <function-decl name='__ll_sc_atomic64_or' mangled-name='__ll_sc_atomic64_or' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='220' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__ll_sc_atomic64_or'>
+ <parameter type-id='bd54fe1a' name='i' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='220' column='1'/>
+ <parameter type-id='54ffcfb9' name='v' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='220' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='__ll_sc_atomic64_fetch_or' mangled-name='__ll_sc_atomic64_fetch_or' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='220' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__ll_sc_atomic64_fetch_or'>
+ <parameter type-id='bd54fe1a' name='i' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='220' column='1'/>
+ <parameter type-id='54ffcfb9' name='v' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='220' column='1'/>
+ <return type-id='bd54fe1a'/>
+ </function-decl>
+ <function-decl name='__ll_sc_atomic64_fetch_or_acquire' mangled-name='__ll_sc_atomic64_fetch_or_acquire' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='220' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__ll_sc_atomic64_fetch_or_acquire'>
+ <parameter type-id='bd54fe1a' name='i' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='220' column='1'/>
+ <parameter type-id='54ffcfb9' name='v' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='220' column='1'/>
+ <return type-id='bd54fe1a'/>
+ </function-decl>
+ <function-decl name='__ll_sc_atomic64_xor' mangled-name='__ll_sc_atomic64_xor' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='221' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__ll_sc_atomic64_xor'>
+ <parameter type-id='bd54fe1a' name='i' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='221' column='1'/>
+ <parameter type-id='54ffcfb9' name='v' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='221' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='__ll_sc___cmpxchg_case_rel_8' mangled-name='__ll_sc___cmpxchg_case_rel_8' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='293' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__ll_sc___cmpxchg_case_rel_8'>
+ <parameter type-id='fe09dd29' name='ptr' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='293' column='1'/>
+ <parameter type-id='7359adad' name='old' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='293' column='1'/>
+ <parameter type-id='7359adad' name='new' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='293' column='1'/>
+ <return type-id='7359adad'/>
+ </function-decl>
+ <function-decl name='__ll_sc___cmpxchg_case_mb_4' mangled-name='__ll_sc___cmpxchg_case_mb_4' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='296' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__ll_sc___cmpxchg_case_mb_4'>
+ <parameter type-id='fe09dd29' name='ptr' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='296' column='1'/>
+ <parameter type-id='7359adad' name='old' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='296' column='1'/>
+ <parameter type-id='7359adad' name='new' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='296' column='1'/>
+ <return type-id='7359adad'/>
+ </function-decl>
+ <function-decl name='__ll_sc___cmpxchg_case_mb_8' mangled-name='__ll_sc___cmpxchg_case_mb_8' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='297' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__ll_sc___cmpxchg_case_mb_8'>
+ <parameter type-id='fe09dd29' name='ptr' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='297' column='1'/>
+ <parameter type-id='7359adad' name='old' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='297' column='1'/>
+ <parameter type-id='7359adad' name='new' filepath='arch/arm64/include/asm/atomic_ll_sc.h' line='297' column='1'/>
+ <return type-id='7359adad'/>
+ </function-decl>
+ <pointer-type-def type-id='49178f86' size-in-bits='64' id='8a47abc3'/>
+ </abi-instr>
+ <abi-instr address-size='64' path='arch/arm64/lib/delay.c' language='LANG_C89'>
+ <function-decl name='__const_udelay' mangled-name='__const_udelay' filepath='arch/arm64/lib/delay.c' line='54' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__const_udelay'>
+ <parameter type-id='7359adad' name='xloops' filepath='arch/arm64/lib/delay.c' line='54' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='__udelay' mangled-name='__udelay' filepath='arch/arm64/lib/delay.c' line='60' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__udelay'>
+ <parameter type-id='7359adad' name='usecs' filepath='arch/arm64/lib/delay.c' line='60' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='__ndelay' mangled-name='__ndelay' filepath='arch/arm64/lib/delay.c' line='66' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__ndelay'>
+ <parameter type-id='7359adad' name='nsecs' filepath='arch/arm64/lib/delay.c' line='66' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='arch/arm64/mm/dma-mapping.c' language='LANG_C89'>
+ <class-decl name='io_pgtable_ops' size-in-bits='384' is-struct='yes' visibility='default' filepath='include/linux/io-pgtable.h' line='163' column='1' id='37b2770e'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='map' type-id='8f5dd5a0' visibility='default' filepath='include/linux/io-pgtable.h' line='164' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='unmap' type-id='af40b5f5' visibility='default' filepath='include/linux/io-pgtable.h' line='166' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='map_sg' type-id='e9e724cb' visibility='default' filepath='include/linux/io-pgtable.h' line='168' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='iova_to_phys' type-id='92b191e1' visibility='default' filepath='include/linux/io-pgtable.h' line='171' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='is_iova_coherent' type-id='a9458fa0' visibility='default' filepath='include/linux/io-pgtable.h' line='173' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='320'>
+ <var-decl name='iova_to_pte' type-id='0fefd2f1' visibility='default' filepath='include/linux/io-pgtable.h' line='175' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='iova_domain' is-struct='yes' visibility='default' is-declaration-only='yes' id='67db36ed'/>
+ <array-type-def dimensions='1' type-id='19c2251e' size-in-bits='32' id='587936a0'>
+ <subrange length='1' type-id='7ff19f0f' id='52f813b4'/>
+ </array-type-def>
+ <enum-decl name='iommu_cap' filepath='include/linux/iommu.h' line='116' column='1' id='031224de'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='IOMMU_CAP_CACHE_COHERENCY' value='0'/>
+ <enumerator name='IOMMU_CAP_INTR_REMAP' value='1'/>
+ <enumerator name='IOMMU_CAP_NOEXEC' value='2'/>
+ </enum-decl>
+ <class-decl name='iommu_domain' size-in-bits='896' is-struct='yes' visibility='default' filepath='include/linux/iommu.h' line='104' column='1' id='80ef8feb'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='type' type-id='f0981eeb' visibility='default' filepath='include/linux/iommu.h' line='105' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='ops' type-id='f1ac64d0' visibility='default' filepath='include/linux/iommu.h' line='106' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='pgsize_bitmap' type-id='7359adad' visibility='default' filepath='include/linux/iommu.h' line='107' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='handler' type-id='a01c3626' visibility='default' filepath='include/linux/iommu.h' line='108' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='handler_token' type-id='eaa32e2f' visibility='default' filepath='include/linux/iommu.h' line='109' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='320'>
+ <var-decl name='geometry' type-id='1f78af0c' visibility='default' filepath='include/linux/iommu.h' line='110' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='512'>
+ <var-decl name='iova_cookie' type-id='eaa32e2f' visibility='default' filepath='include/linux/iommu.h' line='111' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='576'>
+ <var-decl name='is_debug_domain' type-id='b50a4934' visibility='default' filepath='include/linux/iommu.h' line='112' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='584'>
+ <var-decl name='name' type-id='16dc656a' visibility='default' filepath='include/linux/iommu.h' line='113' column='1'/>
+ </data-member>
+ </class-decl>
+ <typedef-decl name='iommu_fault_handler_t' type-id='8e0d1900' filepath='include/linux/iommu.h' line='65' column='1' id='a01c3626'/>
+ <class-decl name='iommu_domain_geometry' size-in-bits='192' is-struct='yes' visibility='default' filepath='include/linux/iommu.h' line='68' column='1' id='1f78af0c'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='aperture_start' type-id='cf29c9b3' visibility='default' filepath='include/linux/iommu.h' line='69' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='aperture_end' type-id='cf29c9b3' visibility='default' filepath='include/linux/iommu.h' line='70' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='force_aperture' type-id='b50a4934' visibility='default' filepath='include/linux/iommu.h' line='71' column='1'/>
+ </data-member>
+ </class-decl>
+ <enum-decl name='iommu_attr' filepath='include/linux/iommu.h' line='141' column='1' id='e176cc45'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='DOMAIN_ATTR_GEOMETRY' value='0'/>
+ <enumerator name='DOMAIN_ATTR_PAGING' value='1'/>
+ <enumerator name='DOMAIN_ATTR_WINDOWS' value='2'/>
+ <enumerator name='DOMAIN_ATTR_FSL_PAMU_STASH' value='3'/>
+ <enumerator name='DOMAIN_ATTR_FSL_PAMU_ENABLE' value='4'/>
+ <enumerator name='DOMAIN_ATTR_FSL_PAMUV1' value='5'/>
+ <enumerator name='DOMAIN_ATTR_NESTING' value='6'/>
+ <enumerator name='DOMAIN_ATTR_PT_BASE_ADDR' value='7'/>
+ <enumerator name='DOMAIN_ATTR_CONTEXT_BANK' value='8'/>
+ <enumerator name='DOMAIN_ATTR_DYNAMIC' value='9'/>
+ <enumerator name='DOMAIN_ATTR_TTBR0' value='10'/>
+ <enumerator name='DOMAIN_ATTR_CONTEXTIDR' value='11'/>
+ <enumerator name='DOMAIN_ATTR_PROCID' value='12'/>
+ <enumerator name='DOMAIN_ATTR_NON_FATAL_FAULTS' value='13'/>
+ <enumerator name='DOMAIN_ATTR_S1_BYPASS' value='14'/>
+ <enumerator name='DOMAIN_ATTR_ATOMIC' value='15'/>
+ <enumerator name='DOMAIN_ATTR_SECURE_VMID' value='16'/>
+ <enumerator name='DOMAIN_ATTR_FAST' value='17'/>
+ <enumerator name='DOMAIN_ATTR_PGTBL_INFO' value='18'/>
+ <enumerator name='DOMAIN_ATTR_USE_UPSTREAM_HINT' value='19'/>
+ <enumerator name='DOMAIN_ATTR_EARLY_MAP' value='20'/>
+ <enumerator name='DOMAIN_ATTR_PAGE_TABLE_IS_COHERENT' value='21'/>
+ <enumerator name='DOMAIN_ATTR_PAGE_TABLE_FORCE_COHERENT' value='22'/>
+ <enumerator name='DOMAIN_ATTR_BITMAP_IOVA_ALLOCATOR' value='23'/>
+ <enumerator name='DOMAIN_ATTR_USE_LLC_NWA' value='24'/>
+ <enumerator name='DOMAIN_ATTR_FAULT_MODEL_NO_CFRE' value='25'/>
+ <enumerator name='DOMAIN_ATTR_FAULT_MODEL_NO_STALL' value='26'/>
+ <enumerator name='DOMAIN_ATTR_FAULT_MODEL_HUPCF' value='27'/>
+ <enumerator name='DOMAIN_ATTR_MAX' value='28'/>
+ </enum-decl>
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+ <parameter type-id='95e97e5e' name='first_vec' filepath='block/blk-mq-virtio.c' line='33' column='1'/>
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+ <abi-instr address-size='64' path='block/blk-mq.c' language='LANG_C89'>
+ <function-decl name='blk_mq_alloc_tag_set' mangled-name='blk_mq_alloc_tag_set' filepath='block/blk-mq.c' line='2785' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_alloc_tag_set'>
+ <parameter type-id='cc26d15f' name='set' filepath='block/blk-mq.c' line='2785' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='blk_mq_complete_request' mangled-name='blk_mq_complete_request' filepath='block/blk-mq.c' line='616' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_complete_request'>
+ <parameter type-id='3dad1a48' name='rq' filepath='block/blk-mq.c' line='616' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='blk_mq_start_request' mangled-name='blk_mq_start_request' filepath='block/blk-mq.c' line='630' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_start_request'>
+ <parameter type-id='3dad1a48' name='rq' filepath='block/blk-mq.c' line='630' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='blk_mq_stop_hw_queue' mangled-name='blk_mq_stop_hw_queue' filepath='block/blk-mq.c' line='1480' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_stop_hw_queue'>
+ <parameter type-id='a47d3467' name='hctx' filepath='block/blk-mq.c' line='1480' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='blk_mq_start_stopped_hw_queues' mangled-name='blk_mq_start_stopped_hw_queues' filepath='block/blk-mq.c' line='1535' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_start_stopped_hw_queues'>
+ <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-mq.c' line='1535' column='1'/>
+ <parameter type-id='b50a4934' name='async' filepath='block/blk-mq.c' line='1535' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='blk_mq_init_queue' mangled-name='blk_mq_init_queue' filepath='block/blk-mq.c' line='2496' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_init_queue'>
+ <parameter type-id='cc26d15f' name='set' filepath='block/blk-mq.c' line='2496' column='1'/>
+ <return type-id='e7d2a5fc'/>
+ </function-decl>
+ <function-decl name='blk_mq_free_tag_set' mangled-name='blk_mq_free_tag_set' filepath='block/blk-mq.c' line='2859' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_free_tag_set'>
+ <parameter type-id='cc26d15f' name='set' filepath='block/blk-mq.c' line='2859' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='block/blk-settings.c' language='LANG_C89'>
+ <function-decl name='blk_queue_max_segments' mangled-name='blk_queue_max_segments' filepath='block/blk-settings.c' line='323' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_queue_max_segments'>
+ <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-settings.c' line='323' column='1'/>
+ <parameter type-id='8efea9e5' name='max_segments' filepath='block/blk-settings.c' line='323' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='blk_queue_max_segment_size' mangled-name='blk_queue_max_segment_size' filepath='block/blk-settings.c' line='360' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_queue_max_segment_size'>
+ <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-settings.c' line='360' column='1'/>
+ <parameter type-id='f0981eeb' name='max_size' filepath='block/blk-settings.c' line='360' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='blk_queue_update_dma_pad' mangled-name='blk_queue_update_dma_pad' filepath='block/blk-settings.c' line='764' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_queue_update_dma_pad'>
+ <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-settings.c' line='764' column='1'/>
+ <parameter type-id='f0981eeb' name='mask' filepath='block/blk-settings.c' line='764' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='block/cfq-iosched.c' language='LANG_C89'>
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+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='HRTIMER_MODE_ABS' value='0'/>
+ <enumerator name='HRTIMER_MODE_REL' value='1'/>
+ <enumerator name='HRTIMER_MODE_PINNED' value='2'/>
+ <enumerator name='HRTIMER_MODE_SOFT' value='4'/>
+ <enumerator name='HRTIMER_MODE_ABS_PINNED' value='2'/>
+ <enumerator name='HRTIMER_MODE_REL_PINNED' value='3'/>
+ <enumerator name='HRTIMER_MODE_ABS_SOFT' value='4'/>
+ <enumerator name='HRTIMER_MODE_REL_SOFT' value='5'/>
+ <enumerator name='HRTIMER_MODE_ABS_PINNED_SOFT' value='6'/>
+ <enumerator name='HRTIMER_MODE_REL_PINNED_SOFT' value='7'/>
+ </enum-decl>
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+ <pointer-type-def type-id='dec44472' size-in-bits='64' id='c5bcc2c0'/>
+ <function-decl name='ktime_get' mangled-name='ktime_get' filepath='include/linux/timekeeping.h' line='67' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ktime_get'>
+ <return type-id='1eb56b1e'/>
+ </function-decl>
+ <function-decl name='jiffies_to_usecs' mangled-name='jiffies_to_usecs' filepath='include/linux/jiffies.h' line='290' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='jiffies_to_usecs'>
+ <parameter type-id='7359adad'/>
+ <return type-id='f0981eeb'/>
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+ <function-decl name='hrtimer_try_to_cancel' mangled-name='hrtimer_try_to_cancel' filepath='include/linux/hrtimer.h' line='391' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hrtimer_try_to_cancel'>
+ <parameter type-id='08c8d0fa'/>
+ <return type-id='95e97e5e'/>
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+ <function-decl name='hrtimer_active' mangled-name='hrtimer_active' filepath='include/linux/hrtimer.h' line='420' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hrtimer_active'>
+ <parameter type-id='1ce53783'/>
+ <return type-id='c894953d'/>
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+ <parameter type-id='88326653'/>
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+ <parameter type-id='08c8d0fa'/>
+ <parameter type-id='95e97e5e'/>
+ <parameter type-id='88326653'/>
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+ <function-decl name='hrtimer_cancel' mangled-name='hrtimer_cancel' filepath='include/linux/hrtimer.h' line='390' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hrtimer_cancel'>
+ <parameter type-id='08c8d0fa'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
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+ <parameter type-id='47b73425'/>
+ <return type-id='e6532500'/>
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+ <parameter type-id='e6532500'/>
+ <parameter type-id='c5bcc2c0'/>
+ <return type-id='48b5725f'/>
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+ <function-decl name='rb_insert_color' mangled-name='rb_insert_color' filepath='include/linux/rbtree.h' line='77' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rb_insert_color'>
+ <parameter type-id='e6532500'/>
+ <parameter type-id='c5bcc2c0'/>
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+ </function-decl>
+ <function-decl name='_raw_spin_lock_irqsave' mangled-name='_raw_spin_lock_irqsave' filepath='include/linux/spinlock_api_smp.h' line='32' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_spin_lock_irqsave'>
+ <parameter type-id='538ece95'/>
+ <return type-id='7359adad'/>
+ </function-decl>
+ <function-decl name='_raw_spin_unlock_irqrestore' mangled-name='_raw_spin_unlock_irqrestore' filepath='include/linux/spinlock_api_smp.h' line='43' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_spin_unlock_irqrestore'>
+ <parameter type-id='538ece95'/>
+ <parameter type-id='7359adad'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
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+ </abi-instr>
+ <abi-instr address-size='64' path='block/deadline-iosched.c' language='LANG_C89'>
+ <function-decl name='jiffies_to_msecs' mangled-name='jiffies_to_msecs' filepath='include/linux/jiffies.h' line='289' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='jiffies_to_msecs'>
+ <parameter type-id='7359adad'/>
+ <return type-id='f0981eeb'/>
+ </function-decl>
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+ <abi-instr address-size='64' path='block/elevator.c' language='LANG_C89'>
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+ </array-type-def>
+ <class-decl name='__anonymous_struct__' size-in-bits='512' is-struct='yes' is-anonymous='yes' visibility='default' filepath='block/blk-mq.h' line='14' column='1' id='fa9adea3'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='lock' type-id='fb4018a0' visibility='default' filepath='block/blk-mq.h' line='15' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='rq_list' type-id='72f469ec' visibility='default' filepath='block/blk-mq.h' line='16' column='1'/>
+ </data-member>
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+ <class-decl name='rq_qos_ops' size-in-bits='512' is-struct='yes' visibility='default' filepath='block/blk-rq-qos.h' line='27' column='1' id='59969f99'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='throttle' type-id='9e68f457' visibility='default' filepath='block/blk-rq-qos.h' line='28' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
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+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
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+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='requeue' type-id='4b080d34' visibility='default' filepath='block/blk-rq-qos.h' line='31' column='1'/>
+ </data-member>
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+ </data-member>
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+ <var-decl name='cleanup' type-id='7eeb4265' visibility='default' filepath='block/blk-rq-qos.h' line='34' column='1'/>
+ </data-member>
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+ <enumerator name='RQ_QOS_WBT' value='0'/>
+ <enumerator name='RQ_QOS_CGROUP' value='1'/>
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+ </data-member>
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+ </data-member>
+ <data-member access='public' layout-offset-in-bits='320'>
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+ </data-member>
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+ </data-member>
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+ </data-member>
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+ <pointer-type-def type-id='4b4e7d36' size-in-bits='64' id='923f12f8'/>
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+ <function-decl name='keyslot_manager_reprogram_all_keys' mangled-name='keyslot_manager_reprogram_all_keys' filepath='block/keyslot-manager.c' line='502' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='keyslot_manager_reprogram_all_keys'>
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+ <parameter type-id='538ece95'/>
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+ <parameter type-id='538ece95'/>
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+ </data-member>
+ </class-decl>
+ <pointer-type-def type-id='e84913bd' size-in-bits='64' id='4209d6b5'/>
+ <qualified-type-def type-id='9925a3d9' const='yes' id='f320cfd2'/>
+ <pointer-type-def type-id='f320cfd2' size-in-bits='64' id='b4a76368'/>
+ <pointer-type-def type-id='a272e179' size-in-bits='64' id='94411a61'/>
+ <pointer-type-def type-id='7aaadab9' size-in-bits='64' id='96aaf495'/>
+ <pointer-type-def type-id='89407a8c' size-in-bits='64' id='fe2cd2b6'/>
+ <pointer-type-def type-id='75d1367a' size-in-bits='64' id='663e4c8c'/>
+ <function-decl name='gnss_allocate_device' mangled-name='gnss_allocate_device' filepath='drivers/gnss/core.c' line='224' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gnss_allocate_device'>
+ <parameter type-id='fa0b179b' name='parent' filepath='drivers/gnss/core.c' line='224' column='1'/>
+ <return type-id='94411a61'/>
+ </function-decl>
+ <function-decl name='gnss_put_device' mangled-name='gnss_put_device' filepath='drivers/gnss/core.c' line='277' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gnss_put_device'>
+ <parameter type-id='94411a61' name='gdev' filepath='drivers/gnss/core.c' line='277' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='gnss_register_device' mangled-name='gnss_register_device' filepath='drivers/gnss/core.c' line='283' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gnss_register_device'>
+ <parameter type-id='94411a61' name='gdev' filepath='drivers/gnss/core.c' line='283' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='gnss_deregister_device' mangled-name='gnss_deregister_device' filepath='drivers/gnss/core.c' line='301' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gnss_deregister_device'>
+ <parameter type-id='94411a61' name='gdev' filepath='drivers/gnss/core.c' line='301' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='gnss_insert_raw' mangled-name='gnss_insert_raw' filepath='drivers/gnss/core.c' line='320' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gnss_insert_raw'>
+ <parameter type-id='94411a61' name='gdev' filepath='drivers/gnss/core.c' line='320' column='1'/>
+ <parameter type-id='354f7eb9' name='buf' filepath='drivers/gnss/core.c' line='320' column='1'/>
+ <parameter type-id='b59d7dce' name='count' filepath='drivers/gnss/core.c' line='321' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-type size-in-bits='64' id='7aaadab9'>
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+ <return type-id='95e97e5e'/>
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+ <parameter type-id='94411a61'/>
+ <parameter type-id='354f7eb9'/>
+ <parameter type-id='b59d7dce'/>
+ <return type-id='95e97e5e'/>
+ </function-type>
+ <function-type size-in-bits='64' id='75d1367a'>
+ <parameter type-id='94411a61'/>
+ <return type-id='48b5725f'/>
+ </function-type>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/gpio/devres.c' language='LANG_C89'>
+ <enum-decl name='gpiod_flags' filepath='include/linux/gpio/consumer.h' line='38' column='1' id='38d4936d'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='GPIOD_ASIS' value='0'/>
+ <enumerator name='GPIOD_IN' value='1'/>
+ <enumerator name='GPIOD_OUT_LOW' value='3'/>
+ <enumerator name='GPIOD_OUT_HIGH' value='7'/>
+ <enumerator name='GPIOD_OUT_LOW_OPEN_DRAIN' value='11'/>
+ <enumerator name='GPIOD_OUT_HIGH_OPEN_DRAIN' value='15'/>
+ </enum-decl>
+ <function-decl name='devm_gpiod_get' mangled-name='devm_gpiod_get' filepath='drivers/gpio/devres.c' line='64' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_gpiod_get'>
+ <parameter type-id='fa0b179b' name='dev' filepath='drivers/gpio/devres.c' line='64' column='1'/>
+ <parameter type-id='80f4b756' name='con_id' filepath='drivers/gpio/devres.c' line='65' column='1'/>
+ <parameter type-id='38d4936d' name='flags' filepath='drivers/gpio/devres.c' line='66' column='1'/>
+ <return type-id='26760480'/>
+ </function-decl>
+ <function-decl name='devm_gpiod_get_optional' mangled-name='devm_gpiod_get_optional' filepath='drivers/gpio/devres.c' line='82' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_gpiod_get_optional'>
+ <parameter type-id='fa0b179b' name='dev' filepath='drivers/gpio/devres.c' line='82' column='1'/>
+ <parameter type-id='80f4b756' name='con_id' filepath='drivers/gpio/devres.c' line='83' column='1'/>
+ <parameter type-id='38d4936d' name='flags' filepath='drivers/gpio/devres.c' line='84' column='1'/>
+ <return type-id='26760480'/>
+ </function-decl>
+ <function-decl name='gpiod_get_from_of_node' mangled-name='gpiod_get_from_of_node' filepath='drivers/gpio/gpiolib.h' line='197' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_get_from_of_node'>
+ <parameter type-id='9a537bbe'/>
+ <parameter type-id='80f4b756'/>
+ <parameter type-id='95e97e5e'/>
+ <parameter type-id='38d4936d'/>
+ <parameter type-id='80f4b756'/>
+ <return type-id='26760480'/>
+ </function-decl>
+ <function-decl name='devm_gpio_request' mangled-name='devm_gpio_request' filepath='drivers/gpio/devres.c' line='379' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_gpio_request'>
+ <parameter type-id='fa0b179b' name='dev' filepath='drivers/gpio/devres.c' line='379' column='1'/>
+ <parameter type-id='f0981eeb' name='gpio' filepath='drivers/gpio/devres.c' line='379' column='1'/>
+ <parameter type-id='80f4b756' name='label' filepath='drivers/gpio/devres.c' line='379' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='gpio_request_one' mangled-name='gpio_request_one' filepath='include/asm-generic/gpio.h' line='117' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpio_request_one'>
+ <parameter type-id='f0981eeb'/>
+ <parameter type-id='7359adad'/>
+ <parameter type-id='80f4b756'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/gpio/gpio-pl061.c' language='LANG_C89'>
+ <array-type-def dimensions='1' type-id='f0981eeb' size-in-bits='288' id='0d6477e2'>
+ <subrange length='9' type-id='7ff19f0f' id='12e4273c'/>
+ </array-type-def>
+ <class-decl name='amba_driver' size-in-bits='1600' is-struct='yes' visibility='default' filepath='include/linux/amba/bus.h' line='39' column='1' id='929b60e1'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='drv' type-id='fe007c02' visibility='default' filepath='include/linux/amba/bus.h' line='40' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1344'>
+ <var-decl name='probe' type-id='3c6ca22d' visibility='default' filepath='include/linux/amba/bus.h' line='41' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1408'>
+ <var-decl name='remove' type-id='64cf15f5' visibility='default' filepath='include/linux/amba/bus.h' line='42' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1472'>
+ <var-decl name='shutdown' type-id='690433e0' visibility='default' filepath='include/linux/amba/bus.h' line='43' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1536'>
+ <var-decl name='id_table' type-id='be3ce245' visibility='default' filepath='include/linux/amba/bus.h' line='44' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='amba_device' size-in-bits='8832' is-struct='yes' visibility='default' filepath='include/linux/amba/bus.h' line='30' column='1' id='92e8f939'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='dev' type-id='66e487eb' visibility='default' filepath='include/linux/amba/bus.h' line='31' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='7616'>
+ <var-decl name='res' type-id='5218160d' visibility='default' filepath='include/linux/amba/bus.h' line='32' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='8384'>
+ <var-decl name='pclk' type-id='7d0bc0eb' visibility='default' filepath='include/linux/amba/bus.h' line='33' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='8448'>
+ <var-decl name='periphid' type-id='f0981eeb' visibility='default' filepath='include/linux/amba/bus.h' line='34' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='8480'>
+ <var-decl name='irq' type-id='0d6477e2' visibility='default' filepath='include/linux/amba/bus.h' line='35' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='8768'>
+ <var-decl name='driver_override' type-id='26a90f95' visibility='default' filepath='include/linux/amba/bus.h' line='36' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='amba_id' size-in-bits='128' is-struct='yes' visibility='default' filepath='include/linux/mod_devicetable.h' line='602' column='1' id='c0e32d5e'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='id' type-id='f0981eeb' visibility='default' filepath='include/linux/mod_devicetable.h' line='603' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='32'>
+ <var-decl name='mask' type-id='f0981eeb' visibility='default' filepath='include/linux/mod_devicetable.h' line='604' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='data' type-id='eaa32e2f' visibility='default' filepath='include/linux/mod_devicetable.h' line='605' column='1'/>
+ </data-member>
+ </class-decl>
+ <pointer-type-def type-id='92e8f939' size-in-bits='64' id='ddd322c1'/>
+ <pointer-type-def type-id='929b60e1' size-in-bits='64' id='6e829429'/>
+ <qualified-type-def type-id='c0e32d5e' const='yes' id='860353ed'/>
+ <pointer-type-def type-id='860353ed' size-in-bits='64' id='be3ce245'/>
+ <pointer-type-def type-id='1340ad71' size-in-bits='64' id='64cf15f5'/>
+ <pointer-type-def type-id='d4a58841' size-in-bits='64' id='3c6ca22d'/>
+ <pointer-type-def type-id='d3efde9e' size-in-bits='64' id='690433e0'/>
+ <function-decl name='amba_driver_register' mangled-name='amba_driver_register' filepath='include/linux/amba/bus.h' line='71' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='amba_driver_register'>
+ <parameter type-id='6e829429'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='gpiochip_set_chained_irqchip' mangled-name='gpiochip_set_chained_irqchip' filepath='include/linux/gpio/driver.h' line='455' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_set_chained_irqchip'>
+ <parameter type-id='e324928d'/>
+ <parameter type-id='8846a616'/>
+ <parameter type-id='f0981eeb'/>
+ <parameter type-id='8937f3c2'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='irq_set_irq_wake' mangled-name='irq_set_irq_wake' filepath='include/linux/interrupt.h' line='402' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_set_irq_wake'>
+ <parameter type-id='f0981eeb'/>
+ <parameter type-id='f0981eeb'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-type size-in-bits='64' id='1340ad71'>
+ <parameter type-id='ddd322c1'/>
+ <return type-id='95e97e5e'/>
+ </function-type>
+ <function-type size-in-bits='64' id='d4a58841'>
+ <parameter type-id='ddd322c1'/>
+ <parameter type-id='be3ce245'/>
+ <return type-id='95e97e5e'/>
+ </function-type>
+ <function-type size-in-bits='64' id='d3efde9e'>
+ <parameter type-id='ddd322c1'/>
+ <return type-id='48b5725f'/>
+ </function-type>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/gpio/gpiolib-legacy.c' language='LANG_C89'>
+ <class-decl name='gpio' size-in-bits='192' is-struct='yes' visibility='default' filepath='include/linux/gpio.h' line='50' column='1' id='84d91c62'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='gpio' type-id='f0981eeb' visibility='default' filepath='include/linux/gpio.h' line='51' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='flags' type-id='7359adad' visibility='default' filepath='include/linux/gpio.h' line='52' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='label' type-id='80f4b756' visibility='default' filepath='include/linux/gpio.h' line='53' column='1'/>
+ </data-member>
+ </class-decl>
+ <qualified-type-def type-id='84d91c62' const='yes' id='69df97a3'/>
+ <pointer-type-def type-id='69df97a3' size-in-bits='64' id='33fb8cab'/>
+ <function-decl name='gpio_free' mangled-name='gpio_free' filepath='drivers/gpio/gpiolib-legacy.c' line='8' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpio_free'>
+ <parameter type-id='f0981eeb' name='gpio' filepath='drivers/gpio/gpiolib-legacy.c' line='8' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='gpiod_export' mangled-name='gpiod_export' filepath='include/linux/gpio/consumer.h' line='536' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_export'>
+ <parameter type-id='26760480'/>
+ <parameter type-id='c894953d'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='gpio_free_array' mangled-name='gpio_free_array' filepath='drivers/gpio/gpiolib-legacy.c' line='107' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpio_free_array'>
+ <parameter type-id='33fb8cab' name='array' filepath='drivers/gpio/gpiolib-legacy.c' line='107' column='1'/>
+ <parameter type-id='b59d7dce' name='num' filepath='drivers/gpio/gpiolib-legacy.c' line='107' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/gpio/gpiolib-of.c' language='LANG_C89'>
+ <function-decl name='of_parse_phandle_with_fixed_args' mangled-name='of_parse_phandle_with_fixed_args' filepath='include/linux/of.h' line='379' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_parse_phandle_with_fixed_args'>
+ <parameter type-id='0afa6ea3'/>
+ <parameter type-id='80f4b756'/>
+ <parameter type-id='95e97e5e'/>
+ <parameter type-id='95e97e5e'/>
+ <parameter type-id='51a94113'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/gpio/gpiolib-sysfs.c' language='LANG_C89'>
+ <function-decl name='device_create_with_groups' mangled-name='device_create_with_groups' filepath='include/linux/device.h' line='1381' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_create_with_groups'>
+ <parameter type-id='67aca04f'/>
+ <parameter type-id='fa0b179b'/>
+ <parameter type-id='f0981eeb'/>
+ <parameter type-id='eaa32e2f'/>
+ <parameter type-id='c97de1ac'/>
+ <parameter type-id='80f4b756'/>
+ <parameter is-variadic='yes'/>
+ <return type-id='fa0b179b'/>
+ </function-decl>
+ <function-decl name='sysfs_streq' mangled-name='sysfs_streq' filepath='include/linux/string.h' line='184' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_streq'>
+ <parameter type-id='80f4b756'/>
+ <parameter type-id='80f4b756'/>
+ <return type-id='c894953d'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/gpio/gpiolib.c' language='LANG_C89'>
+ <qualified-type-def type-id='59f9f35d' const='yes' id='c6fb334e'/>
+ <pointer-type-def type-id='c6fb334e' size-in-bits='64' id='a171e66c'/>
+ <function-decl name='gpiochip_line_is_valid' mangled-name='gpiochip_line_is_valid' filepath='drivers/gpio/gpiolib.c' line='397' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_line_is_valid'>
+ <parameter type-id='a171e66c' name='gpiochip' filepath='drivers/gpio/gpiolib.c' line='397' column='1'/>
+ <parameter type-id='f0981eeb' name='offset' filepath='drivers/gpio/gpiolib.c' line='398' column='1'/>
+ <return type-id='b50a4934'/>
+ </function-decl>
+ <function-decl name='gpiochip_generic_request' mangled-name='gpiochip_generic_request' filepath='drivers/gpio/gpiolib.c' line='2138' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_generic_request'>
+ <parameter type-id='e324928d' name='chip' filepath='drivers/gpio/gpiolib.c' line='2138' column='1'/>
+ <parameter type-id='f0981eeb' name='offset' filepath='drivers/gpio/gpiolib.c' line='2138' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='gpiochip_generic_free' mangled-name='gpiochip_generic_free' filepath='drivers/gpio/gpiolib.c' line='2149' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_generic_free'>
+ <parameter type-id='e324928d' name='chip' filepath='drivers/gpio/gpiolib.c' line='2149' column='1'/>
+ <parameter type-id='f0981eeb' name='offset' filepath='drivers/gpio/gpiolib.c' line='2149' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='gpiod_direction_input' mangled-name='gpiod_direction_input' filepath='drivers/gpio/gpiolib.c' line='2560' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_direction_input'>
+ <parameter type-id='26760480' name='desc' filepath='drivers/gpio/gpiolib.c' line='2560' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='gpiod_direction_output' mangled-name='gpiod_direction_output' filepath='drivers/gpio/gpiolib.c' line='2664' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_direction_output'>
+ <parameter type-id='26760480' name='desc' filepath='drivers/gpio/gpiolib.c' line='2664' column='1'/>
+ <parameter type-id='95e97e5e' name='value' filepath='drivers/gpio/gpiolib.c' line='2664' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='gpiod_get_raw_value' mangled-name='gpiod_get_raw_value' filepath='drivers/gpio/gpiolib.c' line='2941' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_get_raw_value'>
+ <parameter type-id='5bed570d' name='desc' filepath='drivers/gpio/gpiolib.c' line='2941' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='gpiod_get_value' mangled-name='gpiod_get_value' filepath='drivers/gpio/gpiolib.c' line='2960' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_get_value'>
+ <parameter type-id='5bed570d' name='desc' filepath='drivers/gpio/gpiolib.c' line='2960' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='gpiod_set_raw_value' mangled-name='gpiod_set_raw_value' filepath='drivers/gpio/gpiolib.c' line='3183' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_set_raw_value'>
+ <parameter type-id='26760480' name='desc' filepath='drivers/gpio/gpiolib.c' line='3183' column='1'/>
+ <parameter type-id='95e97e5e' name='value' filepath='drivers/gpio/gpiolib.c' line='3183' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='gpiod_set_value' mangled-name='gpiod_set_value' filepath='drivers/gpio/gpiolib.c' line='3224' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_set_value'>
+ <parameter type-id='26760480' name='desc' filepath='drivers/gpio/gpiolib.c' line='3224' column='1'/>
+ <parameter type-id='95e97e5e' name='value' filepath='drivers/gpio/gpiolib.c' line='3224' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
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+ <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='1349' column='1'/>
+ <parameter type-id='e3dd029e' name='old_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='1350' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_atomic_helper_commit_planes' mangled-name='drm_atomic_helper_commit_planes' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2310' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_commit_planes'>
+ <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2310' column='1'/>
+ <parameter type-id='e3dd029e' name='old_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2311' column='1'/>
+ <parameter type-id='8f92235e' name='flags' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2312' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_crtc_send_vblank_event' mangled-name='drm_crtc_send_vblank_event' filepath='include/drm/drm_vblank.h' line='202' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_send_vblank_event'>
+ <parameter type-id='b64ad7cb'/>
+ <parameter type-id='6301fad2'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_atomic_helper_commit_hw_done' mangled-name='drm_atomic_helper_commit_hw_done' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2143' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_commit_hw_done'>
+ <parameter type-id='e3dd029e' name='old_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2143' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_atomic_helper_cleanup_planes' mangled-name='drm_atomic_helper_cleanup_planes' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2516' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_cleanup_planes'>
+ <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2516' column='1'/>
+ <parameter type-id='e3dd029e' name='old_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2517' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_atomic_helper_commit' mangled-name='drm_atomic_helper_commit' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='1662' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_commit'>
+ <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='1662' column='1'/>
+ <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='1663' column='1'/>
+ <parameter type-id='b50a4934' name='nonblock' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='1664' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_atomic_helper_prepare_planes' mangled-name='drm_atomic_helper_prepare_planes' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2226' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_prepare_planes'>
+ <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2226' column='1'/>
+ <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2227' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_atomic_helper_swap_state' mangled-name='drm_atomic_helper_swap_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2579' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_swap_state'>
+ <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2579' column='1'/>
+ <parameter type-id='b50a4934' name='stall' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2580' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_atomic_helper_update_plane' mangled-name='drm_atomic_helper_update_plane' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2710' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_update_plane'>
+ <parameter type-id='a6711537' name='plane' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2710' column='1'/>
+ <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2711' column='1'/>
+ <parameter type-id='7b332e1c' name='fb' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2712' column='1'/>
+ <parameter type-id='95e97e5e' name='crtc_x' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2713' column='1'/>
+ <parameter type-id='95e97e5e' name='crtc_y' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2713' column='1'/>
+ <parameter type-id='f0981eeb' name='crtc_w' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2714' column='1'/>
+ <parameter type-id='f0981eeb' name='crtc_h' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2714' column='1'/>
+ <parameter type-id='8f92235e' name='src_x' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2715' column='1'/>
+ <parameter type-id='8f92235e' name='src_y' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2715' column='1'/>
+ <parameter type-id='8f92235e' name='src_w' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2716' column='1'/>
+ <parameter type-id='8f92235e' name='src_h' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2716' column='1'/>
+ <parameter type-id='d1499e71' name='ctx' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2717' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_atomic_state_alloc' mangled-name='drm_atomic_state_alloc' filepath='include/drm/drm_atomic.h' line='349' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_state_alloc'>
+ <parameter type-id='8898134d'/>
+ <return type-id='e3dd029e'/>
+ </function-decl>
+ <function-decl name='drm_atomic_get_plane_state' mangled-name='drm_atomic_get_plane_state' filepath='include/drm/drm_atomic.h' line='391' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_get_plane_state'>
+ <parameter type-id='e3dd029e'/>
+ <parameter type-id='a6711537'/>
+ <return type-id='d0835005'/>
+ </function-decl>
+ <function-decl name='drm_atomic_commit' mangled-name='drm_atomic_commit' filepath='include/drm/drm_atomic.h' line='627' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_commit'>
+ <parameter type-id='e3dd029e'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_atomic_helper_disable_plane' mangled-name='drm_atomic_helper_disable_plane' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2767' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_disable_plane'>
+ <parameter type-id='a6711537' name='plane' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2767' column='1'/>
+ <parameter type-id='d1499e71' name='ctx' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2768' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='__drm_atomic_helper_disable_plane' mangled-name='__drm_atomic_helper_disable_plane' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2800' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__drm_atomic_helper_disable_plane'>
+ <parameter type-id='a6711537' name='plane' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2800' column='1'/>
+ <parameter type-id='d0835005' name='plane_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2801' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_atomic_helper_set_config' mangled-name='drm_atomic_helper_set_config' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2905' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_set_config'>
+ <parameter type-id='8106240b' name='set' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2905' column='1'/>
+ <parameter type-id='d1499e71' name='ctx' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2906' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='__drm_atomic_helper_set_config' mangled-name='__drm_atomic_helper_set_config' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2934' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__drm_atomic_helper_set_config'>
+ <parameter type-id='8106240b' name='set' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2934' column='1'/>
+ <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2935' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_atomic_get_crtc_state' mangled-name='drm_atomic_get_crtc_state' filepath='include/drm/drm_atomic.h' line='385' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_get_crtc_state'>
+ <parameter type-id='e3dd029e'/>
+ <parameter type-id='b64ad7cb'/>
+ <return type-id='35078cb9'/>
+ </function-decl>
+ <function-decl name='drm_atomic_helper_shutdown' mangled-name='drm_atomic_helper_shutdown' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3111' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_shutdown'>
+ <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3111' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_modeset_lock_all_ctx' mangled-name='drm_modeset_lock_all_ctx' filepath='include/drm/drm_modeset_lock.h' line='130' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_lock_all_ctx'>
+ <parameter type-id='8898134d'/>
+ <parameter type-id='d1499e71'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_atomic_helper_duplicate_state' mangled-name='drm_atomic_helper_duplicate_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3811' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_duplicate_state'>
+ <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3811' column='1'/>
+ <parameter type-id='d1499e71' name='ctx' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3812' column='1'/>
+ <return type-id='e3dd029e'/>
+ </function-decl>
+ <function-decl name='drm_atomic_helper_commit_duplicated_state' mangled-name='drm_atomic_helper_commit_duplicated_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3214' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_commit_duplicated_state'>
+ <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3214' column='1'/>
+ <parameter type-id='d1499e71' name='ctx' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3215' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_mode_config_reset' mangled-name='drm_mode_config_reset' filepath='include/drm/drm_mode_config.h' line='856' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_config_reset'>
+ <parameter type-id='8898134d'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_atomic_helper_page_flip' mangled-name='drm_atomic_helper_page_flip' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3345' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_page_flip'>
+ <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3345' column='1'/>
+ <parameter type-id='7b332e1c' name='fb' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3346' column='1'/>
+ <parameter type-id='6301fad2' name='event' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3347' column='1'/>
+ <parameter type-id='8f92235e' name='flags' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3348' column='1'/>
+ <parameter type-id='d1499e71' name='ctx' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3349' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='__drm_atomic_helper_crtc_destroy_state' mangled-name='__drm_atomic_helper_crtc_destroy_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3546' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__drm_atomic_helper_crtc_destroy_state'>
+ <parameter type-id='35078cb9' name='state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3546' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_property_blob_put' mangled-name='drm_property_blob_put' filepath='include/drm/drm_property.h' line='281' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_blob_put'>
+ <parameter type-id='c4126d52'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='__drm_atomic_helper_crtc_duplicate_state' mangled-name='__drm_atomic_helper_crtc_duplicate_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3490' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__drm_atomic_helper_crtc_duplicate_state'>
+ <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3490' column='1'/>
+ <parameter type-id='35078cb9' name='state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3491' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_atomic_helper_crtc_destroy_state' mangled-name='drm_atomic_helper_crtc_destroy_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3582' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_crtc_destroy_state'>
+ <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3582' column='1'/>
+ <parameter type-id='35078cb9' name='state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3583' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='__drm_atomic_helper_plane_duplicate_state' mangled-name='__drm_atomic_helper_plane_duplicate_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3624' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__drm_atomic_helper_plane_duplicate_state'>
+ <parameter type-id='a6711537' name='plane' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3624' column='1'/>
+ <parameter type-id='d0835005' name='state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3625' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_atomic_helper_plane_destroy_state' mangled-name='drm_atomic_helper_plane_destroy_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3689' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_plane_destroy_state'>
+ <parameter type-id='a6711537' name='plane' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3689' column='1'/>
+ <parameter type-id='d0835005' name='state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3690' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='__drm_atomic_helper_connector_reset' mangled-name='__drm_atomic_helper_connector_reset' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3710' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__drm_atomic_helper_connector_reset'>
+ <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3710' column='1'/>
+ <parameter type-id='249ef586' name='conn_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3711' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_atomic_helper_connector_reset' mangled-name='drm_atomic_helper_connector_reset' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3728' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_connector_reset'>
+ <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3728' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='__drm_atomic_helper_connector_destroy_state' mangled-name='__drm_atomic_helper_connector_destroy_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3882' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__drm_atomic_helper_connector_destroy_state'>
+ <parameter type-id='249ef586' name='state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3882' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='__drm_atomic_helper_connector_duplicate_state' mangled-name='__drm_atomic_helper_connector_duplicate_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3750' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__drm_atomic_helper_connector_duplicate_state'>
+ <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3750' column='1'/>
+ <parameter type-id='249ef586' name='state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3751' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_atomic_helper_connector_duplicate_state' mangled-name='drm_atomic_helper_connector_duplicate_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3771' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_connector_duplicate_state'>
+ <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3771' column='1'/>
+ <return type-id='249ef586'/>
+ </function-decl>
+ <function-decl name='drm_atomic_helper_connector_destroy_state' mangled-name='drm_atomic_helper_connector_destroy_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3900' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_connector_destroy_state'>
+ <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3900' column='1'/>
+ <parameter type-id='249ef586' name='state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3901' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_property_create_blob' mangled-name='drm_property_create_blob' filepath='include/drm/drm_property.h' line='267' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_create_blob'>
+ <parameter type-id='8898134d'/>
+ <parameter type-id='7359adad'/>
+ <parameter type-id='eaa32e2f'/>
+ <return type-id='c4126d52'/>
+ </function-decl>
+ <function-decl name='__drm_atomic_helper_private_obj_duplicate_state' mangled-name='__drm_atomic_helper_private_obj_duplicate_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3986' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__drm_atomic_helper_private_obj_duplicate_state'>
+ <parameter type-id='11c98e9a' name='obj' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3986' column='1'/>
+ <parameter type-id='4ea020ae' name='state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3987' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <pointer-type-def type-id='ef266a3b' size-in-bits='64' id='8106240b'/>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/gpu/drm/drm_blend.c' language='LANG_C89'>
+ <function-decl name='drm_plane_create_rotation_property' mangled-name='drm_plane_create_rotation_property' filepath='drivers/gpu/drm/drm_blend.c' line='181' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_plane_create_rotation_property'>
+ <parameter type-id='a6711537' name='plane' filepath='drivers/gpu/drm/drm_blend.c' line='181' column='1'/>
+ <parameter type-id='f0981eeb' name='rotation' filepath='drivers/gpu/drm/drm_blend.c' line='182' column='1'/>
+ <parameter type-id='f0981eeb' name='supported_rotations' filepath='drivers/gpu/drm/drm_blend.c' line='183' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_property_create_bitmask' mangled-name='drm_property_create_bitmask' filepath='include/drm/drm_property.h' line='247' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_create_bitmask'>
+ <parameter type-id='8898134d'/>
+ <parameter type-id='f0981eeb'/>
+ <parameter type-id='80f4b756'/>
+ <parameter type-id='b807105c'/>
+ <parameter type-id='95e97e5e'/>
+ <parameter type-id='3a47d82b'/>
+ <return type-id='26ea5d4c'/>
+ </function-decl>
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+ <return type-id='f0981eeb'/>
+ </function-decl>
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+ <abi-instr address-size='64' path='drivers/gpu/drm/drm_bridge.c' language='LANG_C89'>
+ <function-decl name='of_drm_find_bridge' mangled-name='of_drm_find_bridge' filepath='drivers/gpu/drm/drm_bridge.c' line='361' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_drm_find_bridge'>
+ <parameter type-id='9a537bbe' name='np' filepath='drivers/gpu/drm/drm_bridge.c' line='361' column='1'/>
+ <return type-id='8582e5ec'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/gpu/drm/drm_connector.c' language='LANG_C89'>
+ <class-decl name='drm_prop_enum_list' size-in-bits='128' is-struct='yes' visibility='default' filepath='include/drm/drm_property.h' line='215' column='1' id='56eae4b3'>
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+ <function-decl name='drm_connector_attach_edid_property' mangled-name='drm_connector_attach_edid_property' filepath='drivers/gpu/drm/drm_connector.c' line='299' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_attach_edid_property'>
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+ <return type-id='48b5725f'/>
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+ <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_connector.c' line='386' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_connector_unregister' mangled-name='drm_connector_unregister' filepath='drivers/gpu/drm/drm_connector.c' line='490' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_unregister'>
+ <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_connector.c' line='490' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
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+ <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_connector.c' line='443' column='1'/>
+ <return type-id='95e97e5e'/>
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+ <function-decl name='drm_connector_list_iter_begin' mangled-name='drm_connector_list_iter_begin' filepath='drivers/gpu/drm/drm_connector.c' line='595' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_list_iter_begin'>
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+ <function-decl name='drm_get_connector_status_name' mangled-name='drm_get_connector_status_name' filepath='drivers/gpu/drm/drm_connector.c' line='546' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_get_connector_status_name'>
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+ <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_connector.c' line='1468' column='1'/>
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+ <return type-id='48b5725f'/>
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+ <function-decl name='drm_framebuffer_lookup' mangled-name='drm_framebuffer_lookup' filepath='include/drm/drm_framebuffer.h' line='213' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_framebuffer_lookup'>
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+ <function-decl name='drm_mode_convert_umode' mangled-name='drm_mode_convert_umode' filepath='include/drm/drm_modes.h' line='466' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_convert_umode'>
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+ </function-decl>
+ <function-decl name='drm_connector_list_iter_end' mangled-name='drm_connector_list_iter_end' filepath='include/drm/drm_connector.h' line='1359' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_list_iter_end'>
+ <parameter type-id='40a902ec'/>
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+ </function-decl>
+ <function-decl name='drm_err' mangled-name='drm_err' filepath='include/drm/drm_print.h' line='281' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_err'>
+ <parameter type-id='80f4b756'/>
+ <parameter is-variadic='yes'/>
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+ </function-decl>
+ <function-decl name='drm_modeset_lock_all' mangled-name='drm_modeset_lock_all' filepath='include/drm/drm_modeset_lock.h' line='126' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_lock_all'>
+ <parameter type-id='8898134d'/>
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+ </function-decl>
+ <function-decl name='drm_modeset_unlock_all' mangled-name='drm_modeset_unlock_all' filepath='include/drm/drm_modeset_lock.h' line='127' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_unlock_all'>
+ <parameter type-id='8898134d'/>
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+ </function-decl>
+ <function-decl name='drm_bridge_post_disable' mangled-name='drm_bridge_post_disable' filepath='include/drm/drm_bridge.h' line='311' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_bridge_post_disable'>
+ <parameter type-id='8582e5ec'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_bridge_disable' mangled-name='drm_bridge_disable' filepath='include/drm/drm_bridge.h' line='310' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_bridge_disable'>
+ <parameter type-id='8582e5ec'/>
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+ </function-decl>
+ <function-decl name='drm_mode_duplicate' mangled-name='drm_mode_duplicate' filepath='include/drm/drm_modes.h' line='510' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_duplicate'>
+ <parameter type-id='8898134d'/>
+ <parameter type-id='745b39e8'/>
+ <return type-id='11e02f83'/>
+ </function-decl>
+ <function-decl name='drm_dbg' mangled-name='drm_dbg' filepath='include/drm/drm_print.h' line='279' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dbg'>
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+ <parameter is-variadic='yes'/>
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+ </function-decl>
+ <function-decl name='drm_bridge_mode_set' mangled-name='drm_bridge_mode_set' filepath='include/drm/drm_bridge.h' line='312' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_bridge_mode_set'>
+ <parameter type-id='8582e5ec'/>
+ <parameter type-id='11e02f83'/>
+ <parameter type-id='11e02f83'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_bridge_enable' mangled-name='drm_bridge_enable' filepath='include/drm/drm_bridge.h' line='316' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_bridge_enable'>
+ <parameter type-id='8582e5ec'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_bridge_pre_enable' mangled-name='drm_bridge_pre_enable' filepath='include/drm/drm_bridge.h' line='315' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_bridge_pre_enable'>
+ <parameter type-id='8582e5ec'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_mode_object_put' mangled-name='drm_mode_object_put' filepath='include/drm/drm_mode_object.h' line='121' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_object_put'>
+ <parameter type-id='c5417630'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_mode_debug_printmodeline' mangled-name='drm_mode_debug_printmodeline' filepath='include/drm/drm_modes.h' line='470' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_debug_printmodeline'>
+ <parameter type-id='745b39e8'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_mode_object_get' mangled-name='drm_mode_object_get' filepath='include/drm/drm_mode_object.h' line='120' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_object_get'>
+ <parameter type-id='c5417630'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_atomic_set_mode_for_crtc' mangled-name='drm_atomic_set_mode_for_crtc' filepath='include/drm/drm_atomic.h' line='601' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_set_mode_for_crtc'>
+ <parameter type-id='35078cb9'/>
+ <parameter type-id='745b39e8'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_atomic_helper_crtc_reset' mangled-name='drm_atomic_helper_crtc_reset' filepath='include/drm/drm_atomic_helper.h' line='150' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_crtc_reset'>
+ <parameter type-id='b64ad7cb'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_atomic_helper_crtc_duplicate_state' mangled-name='drm_atomic_helper_crtc_duplicate_state' filepath='include/drm/drm_atomic_helper.h' line='154' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_crtc_duplicate_state'>
+ <parameter type-id='b64ad7cb'/>
+ <return type-id='35078cb9'/>
+ </function-decl>
+ <function-decl name='drm_mode_copy' mangled-name='drm_mode_copy' filepath='include/drm/drm_modes.h' line='508' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_copy'>
+ <parameter type-id='11e02f83'/>
+ <parameter type-id='745b39e8'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_atomic_helper_plane_reset' mangled-name='drm_atomic_helper_plane_reset' filepath='include/drm/drm_atomic_helper.h' line='159' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_plane_reset'>
+ <parameter type-id='a6711537'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_atomic_helper_plane_duplicate_state' mangled-name='drm_atomic_helper_plane_duplicate_state' filepath='include/drm/drm_atomic_helper.h' line='163' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_plane_duplicate_state'>
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+ </function-decl>
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+ <var-decl name='__gr_top' type-id='eaa32e2f' visibility='default' filepath='kernel/panic.c' line='141' column='1'/>
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+ <var-decl name='__vr_top' type-id='eaa32e2f' visibility='default' filepath='kernel/panic.c' line='141' column='1'/>
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+ <var-decl name='__gr_offs' type-id='95e97e5e' visibility='default' filepath='kernel/panic.c' line='141' column='1'/>
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+ </data-member>
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+ </data-member>
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+ </data-member>
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+ </data-member>
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+ <parameter type-id='bbaf3419' name='link_status' filepath='drivers/gpu/drm/drm_dp_helper.c' line='60' column='1'/>
+ <parameter type-id='95e97e5e' name='lane_count' filepath='drivers/gpu/drm/drm_dp_helper.c' line='61' column='1'/>
+ <return type-id='b50a4934'/>
+ </function-decl>
+ <function-decl name='drm_dp_clock_recovery_ok' mangled-name='drm_dp_clock_recovery_ok' filepath='drivers/gpu/drm/drm_dp_helper.c' line='80' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_clock_recovery_ok'>
+ <parameter type-id='bbaf3419' name='link_status' filepath='drivers/gpu/drm/drm_dp_helper.c' line='80' column='1'/>
+ <parameter type-id='95e97e5e' name='lane_count' filepath='drivers/gpu/drm/drm_dp_helper.c' line='81' column='1'/>
+ <return type-id='b50a4934'/>
+ </function-decl>
+ <function-decl name='drm_dp_get_adjust_request_voltage' mangled-name='drm_dp_get_adjust_request_voltage' filepath='drivers/gpu/drm/drm_dp_helper.c' line='95' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_get_adjust_request_voltage'>
+ <parameter type-id='bbaf3419' name='link_status' filepath='drivers/gpu/drm/drm_dp_helper.c' line='95' column='1'/>
+ <parameter type-id='95e97e5e' name='lane' filepath='drivers/gpu/drm/drm_dp_helper.c' line='96' column='1'/>
+ <return type-id='f9b06939'/>
+ </function-decl>
+ <function-decl name='drm_dp_get_adjust_request_pre_emphasis' mangled-name='drm_dp_get_adjust_request_pre_emphasis' filepath='drivers/gpu/drm/drm_dp_helper.c' line='108' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_get_adjust_request_pre_emphasis'>
+ <parameter type-id='bbaf3419' name='link_status' filepath='drivers/gpu/drm/drm_dp_helper.c' line='108' column='1'/>
+ <parameter type-id='95e97e5e' name='lane' filepath='drivers/gpu/drm/drm_dp_helper.c' line='109' column='1'/>
+ <return type-id='f9b06939'/>
+ </function-decl>
+ <function-decl name='drm_dp_link_train_clock_recovery_delay' mangled-name='drm_dp_link_train_clock_recovery_delay' filepath='drivers/gpu/drm/drm_dp_helper.c' line='121' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_link_train_clock_recovery_delay'>
+ <parameter type-id='bbaf3419' name='dpcd' filepath='drivers/gpu/drm/drm_dp_helper.c' line='121' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_dp_link_train_channel_eq_delay' mangled-name='drm_dp_link_train_channel_eq_delay' filepath='drivers/gpu/drm/drm_dp_helper.c' line='136' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_link_train_channel_eq_delay'>
+ <parameter type-id='bbaf3419' name='dpcd' filepath='drivers/gpu/drm/drm_dp_helper.c' line='136' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_dp_link_rate_to_bw_code' mangled-name='drm_dp_link_rate_to_bw_code' filepath='drivers/gpu/drm/drm_dp_helper.c' line='151' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_link_rate_to_bw_code'>
+ <parameter type-id='95e97e5e' name='link_rate' filepath='drivers/gpu/drm/drm_dp_helper.c' line='151' column='1'/>
+ <return type-id='f9b06939'/>
+ </function-decl>
+ <function-decl name='drm_dp_bw_code_to_link_rate' mangled-name='drm_dp_bw_code_to_link_rate' filepath='drivers/gpu/drm/drm_dp_helper.c' line='169' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_bw_code_to_link_rate'>
+ <parameter type-id='f9b06939' name='link_bw' filepath='drivers/gpu/drm/drm_dp_helper.c' line='169' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_dp_dpcd_read' mangled-name='drm_dp_dpcd_read' filepath='drivers/gpu/drm/drm_dp_helper.c' line='285' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_dpcd_read'>
+ <parameter type-id='7c5f8cd8' name='aux' filepath='drivers/gpu/drm/drm_dp_helper.c' line='285' column='1'/>
+ <parameter type-id='f0981eeb' name='offset' filepath='drivers/gpu/drm/drm_dp_helper.c' line='285' column='1'/>
+ <parameter type-id='eaa32e2f' name='buffer' filepath='drivers/gpu/drm/drm_dp_helper.c' line='286' column='1'/>
+ <parameter type-id='b59d7dce' name='size' filepath='drivers/gpu/drm/drm_dp_helper.c' line='286' column='1'/>
+ <return type-id='79a0948f'/>
+ </function-decl>
+ <function-decl name='drm_dp_dpcd_write' mangled-name='drm_dp_dpcd_write' filepath='drivers/gpu/drm/drm_dp_helper.c' line='330' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_dpcd_write'>
+ <parameter type-id='7c5f8cd8' name='aux' filepath='drivers/gpu/drm/drm_dp_helper.c' line='330' column='1'/>
+ <parameter type-id='f0981eeb' name='offset' filepath='drivers/gpu/drm/drm_dp_helper.c' line='330' column='1'/>
+ <parameter type-id='eaa32e2f' name='buffer' filepath='drivers/gpu/drm/drm_dp_helper.c' line='331' column='1'/>
+ <parameter type-id='b59d7dce' name='size' filepath='drivers/gpu/drm/drm_dp_helper.c' line='331' column='1'/>
+ <return type-id='79a0948f'/>
+ </function-decl>
+ <function-decl name='drm_dp_dpcd_read_link_status' mangled-name='drm_dp_dpcd_read_link_status' filepath='drivers/gpu/drm/drm_dp_helper.c' line='350' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_dpcd_read_link_status'>
+ <parameter type-id='7c5f8cd8' name='aux' filepath='drivers/gpu/drm/drm_dp_helper.c' line='350' column='1'/>
+ <parameter type-id='8bff8096' name='status' filepath='drivers/gpu/drm/drm_dp_helper.c' line='351' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_dp_link_power_up' mangled-name='drm_dp_link_power_up' filepath='drivers/gpu/drm/drm_dp_helper.c' line='398' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_link_power_up'>
+ <parameter type-id='7c5f8cd8' name='aux' filepath='drivers/gpu/drm/drm_dp_helper.c' line='398' column='1'/>
+ <parameter type-id='f89c98aa' name='link' filepath='drivers/gpu/drm/drm_dp_helper.c' line='398' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_dp_link_power_down' mangled-name='drm_dp_link_power_down' filepath='drivers/gpu/drm/drm_dp_helper.c' line='436' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_link_power_down'>
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+ <function-decl name='drm_dp_link_configure' mangled-name='drm_dp_link_configure' filepath='drivers/gpu/drm/drm_dp_helper.c' line='467' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_link_configure'>
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+ <parameter type-id='f89c98aa' name='link' filepath='drivers/gpu/drm/drm_dp_helper.c' line='467' column='1'/>
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+ <function-decl name='drm_crtc_wait_one_vblank' mangled-name='drm_crtc_wait_one_vblank' filepath='include/drm/drm_vblank.h' line='214' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_wait_one_vblank'>
+ <parameter type-id='b64ad7cb'/>
+ <return type-id='48b5725f'/>
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+ <parameter type-id='b9af02c3'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_dp_aux_unregister' mangled-name='drm_dp_aux_unregister' filepath='drivers/gpu/drm/drm_dp_helper.c' line='1163' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_aux_unregister'>
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+ <return type-id='48b5725f'/>
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+ </function-decl>
+ <function-decl name='drm_dev_dbg' mangled-name='drm_dev_dbg' filepath='include/drm/drm_print.h' line='275' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dev_dbg'>
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+ <var-decl name='payload_state' type-id='95e97e5e' visibility='default' filepath='include/drm/drm_dp_mst_helper.h' line='419' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='32'>
+ <var-decl name='start_slot' type-id='95e97e5e' visibility='default' filepath='include/drm/drm_dp_mst_helper.h' line='420' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='num_slots' type-id='95e97e5e' visibility='default' filepath='include/drm/drm_dp_mst_helper.h' line='421' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='96'>
+ <var-decl name='vcpi' type-id='95e97e5e' visibility='default' filepath='include/drm/drm_dp_mst_helper.h' line='422' column='1'/>
+ </data-member>
+ </class-decl>
+ <qualified-type-def type-id='8596da29' const='yes' id='ee15d052'/>
+ <pointer-type-def type-id='ee15d052' size-in-bits='64' id='44572ce8'/>
+ <pointer-type-def type-id='75ec6dfd' size-in-bits='64' id='89bd4f61'/>
+ <pointer-type-def type-id='d710e4d1' size-in-bits='64' id='7bc9d2d9'/>
+ <pointer-type-def type-id='7f985fda' size-in-bits='64' id='c45d1018'/>
+ <pointer-type-def type-id='77db5b7d' size-in-bits='64' id='88a6d23d'/>
+ <pointer-type-def type-id='43d7edc6' size-in-bits='64' id='510adb5c'/>
+ <pointer-type-def type-id='c3b3aa2a' size-in-bits='64' id='1a8bc978'/>
+ <pointer-type-def type-id='7a5f8aa3' size-in-bits='64' id='778f4653'/>
+ <pointer-type-def type-id='e1653094' size-in-bits='64' id='9117d942'/>
+ <pointer-type-def type-id='9117d942' size-in-bits='64' id='d08b3eb8'/>
+ <pointer-type-def type-id='a7fa16d9' size-in-bits='64' id='c91d1bf1'/>
+ <pointer-type-def type-id='20d6a08a' size-in-bits='64' id='7a134fac'/>
+ <pointer-type-def type-id='9a9b3035' size-in-bits='64' id='7d8f7dd9'/>
+ <function-decl name='drm_dp_mst_topology_mgr_init' mangled-name='drm_dp_mst_topology_mgr_init' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='3251' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_mst_topology_mgr_init'>
+ <parameter type-id='88a6d23d' name='mgr' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='3251' column='1'/>
+ <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='3252' column='1'/>
+ <parameter type-id='7c5f8cd8' name='aux' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='3252' column='1'/>
+ <parameter type-id='95e97e5e' name='max_dpcd_transaction_bytes' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='3253' column='1'/>
+ <parameter type-id='95e97e5e' name='max_payloads' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='3254' column='1'/>
+ <parameter type-id='95e97e5e' name='conn_base_id' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='3254' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_dp_send_power_updown_phy' mangled-name='drm_dp_send_power_updown_phy' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='1774' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_send_power_updown_phy'>
+ <parameter type-id='88a6d23d' name='mgr' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='1774' column='1'/>
+ <parameter type-id='c45d1018' name='port' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='1775' column='1'/>
+ <parameter type-id='b50a4934' name='power_up' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='1775' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_dp_update_payload_part1' mangled-name='drm_dp_update_payload_part1' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='1909' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_update_payload_part1'>
+ <parameter type-id='88a6d23d' name='mgr' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='1909' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_dp_update_payload_part2' mangled-name='drm_dp_update_payload_part2' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='1993' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_update_payload_part2'>
+ <parameter type-id='88a6d23d' name='mgr' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='1993' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_dp_mst_topology_mgr_set_mst' mangled-name='drm_dp_mst_topology_mgr_set_mst' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2163' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_mst_topology_mgr_set_mst'>
+ <parameter type-id='88a6d23d' name='mgr' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2163' column='1'/>
+ <parameter type-id='b50a4934' name='mst_state' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2163' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_dp_mst_hpd_irq' mangled-name='drm_dp_mst_hpd_irq' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2507' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_mst_hpd_irq'>
+ <parameter type-id='88a6d23d' name='mgr' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2507' column='1'/>
+ <parameter type-id='8bff8096' name='esi' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2507' column='1'/>
+ <parameter type-id='d8e6b335' name='handled' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2507' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_dp_mst_detect_port' mangled-name='drm_dp_mst_detect_port' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2543' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_mst_detect_port'>
+ <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2543' column='1'/>
+ <parameter type-id='88a6d23d' name='mgr' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2544' column='1'/>
+ <parameter type-id='c45d1018' name='port' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2544' column='1'/>
+ <return type-id='f7b0e1b4'/>
+ </function-decl>
+ <function-decl name='drm_get_edid' mangled-name='drm_get_edid' filepath='include/drm/drm_edid.h' line='478' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_get_edid'>
+ <parameter type-id='4db02c58'/>
+ <parameter type-id='b9af02c3'/>
+ <return type-id='c91d1bf1'/>
+ </function-decl>
+ <function-decl name='drm_dp_mst_get_edid' mangled-name='drm_dp_mst_get_edid' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2624' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_mst_get_edid'>
+ <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2624' column='1'/>
+ <parameter type-id='88a6d23d' name='mgr' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2624' column='1'/>
+ <parameter type-id='c45d1018' name='port' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2624' column='1'/>
+ <return type-id='c91d1bf1'/>
+ </function-decl>
+ <function-decl name='drm_edid_duplicate' mangled-name='drm_edid_duplicate' filepath='include/drm/drm_edid.h' line='482' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_edid_duplicate'>
+ <parameter type-id='776adf76'/>
+ <return type-id='c91d1bf1'/>
+ </function-decl>
+ <function-decl name='drm_detect_monitor_audio' mangled-name='drm_detect_monitor_audio' filepath='include/drm/drm_edid.h' line='489' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_detect_monitor_audio'>
+ <parameter type-id='c91d1bf1'/>
+ <return type-id='c894953d'/>
+ </function-decl>
+ <function-decl name='drm_dp_find_vcpi_slots' mangled-name='drm_dp_find_vcpi_slots' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2650' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_find_vcpi_slots'>
+ <parameter type-id='88a6d23d' name='mgr' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2650' column='1'/>
+ <parameter type-id='95e97e5e' name='pbn' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2651' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_dp_atomic_find_vcpi_slots' mangled-name='drm_dp_atomic_find_vcpi_slots' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2693' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_atomic_find_vcpi_slots'>
+ <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2693' column='1'/>
+ <parameter type-id='88a6d23d' name='mgr' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2694' column='1'/>
+ <parameter type-id='c45d1018' name='port' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2695' column='1'/>
+ <parameter type-id='95e97e5e' name='pbn' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2695' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_atomic_get_private_obj_state' mangled-name='drm_atomic_get_private_obj_state' filepath='include/drm/drm_atomic.h' line='403' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_get_private_obj_state'>
+ <parameter type-id='e3dd029e'/>
+ <parameter type-id='11c98e9a'/>
+ <return type-id='4ea020ae'/>
+ </function-decl>
+ <function-decl name='drm_dp_atomic_release_vcpi_slots' mangled-name='drm_dp_atomic_release_vcpi_slots' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2734' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_atomic_release_vcpi_slots'>
+ <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2734' column='1'/>
+ <parameter type-id='88a6d23d' name='mgr' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2735' column='1'/>
+ <parameter type-id='95e97e5e' name='slots' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2736' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_dp_mst_allocate_vcpi' mangled-name='drm_dp_mst_allocate_vcpi' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2765' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_mst_allocate_vcpi'>
+ <parameter type-id='88a6d23d' name='mgr' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2765' column='1'/>
+ <parameter type-id='c45d1018' name='port' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2766' column='1'/>
+ <parameter type-id='95e97e5e' name='pbn' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2766' column='1'/>
+ <parameter type-id='95e97e5e' name='slots' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2766' column='1'/>
+ <return type-id='b50a4934'/>
+ </function-decl>
+ <function-decl name='drm_dp_mst_reset_vcpi_slots' mangled-name='drm_dp_mst_reset_vcpi_slots' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2822' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_mst_reset_vcpi_slots'>
+ <parameter type-id='88a6d23d' name='mgr' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2822' column='1'/>
+ <parameter type-id='c45d1018' name='port' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2822' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_dp_mst_deallocate_vcpi' mangled-name='drm_dp_mst_deallocate_vcpi' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2837' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_mst_deallocate_vcpi'>
+ <parameter type-id='88a6d23d' name='mgr' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2837' column='1'/>
+ <parameter type-id='c45d1018' name='port' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2837' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_dp_check_act_status' mangled-name='drm_dp_check_act_status' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2912' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_check_act_status'>
+ <parameter type-id='88a6d23d' name='mgr' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2912' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_dp_calc_pbn_mode' mangled-name='drm_dp_calc_pbn_mode' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2947' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_calc_pbn_mode'>
+ <parameter type-id='95e97e5e' name='clock' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2947' column='1'/>
+ <parameter type-id='95e97e5e' name='bpp' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='2947' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_dp_mst_topology_mgr_destroy' mangled-name='drm_dp_mst_topology_mgr_destroy' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='3307' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_mst_topology_mgr_destroy'>
+ <parameter type-id='88a6d23d' name='mgr' filepath='drivers/gpu/drm/drm_dp_mst_topology.c' line='3307' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <class-decl name='edid' size-in-bits='1024' is-struct='yes' visibility='default' filepath='include/drm/drm_edid.h' line='297' column='1' id='a7fa16d9'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='header' type-id='d2f7b56a' visibility='default' filepath='include/drm/drm_edid.h' line='298' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='mfg_id' type-id='cf114704' visibility='default' filepath='include/drm/drm_edid.h' line='300' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='80'>
+ <var-decl name='prod_code' type-id='cf114704' visibility='default' filepath='include/drm/drm_edid.h' line='301' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='96'>
+ <var-decl name='serial' type-id='19c2251e' visibility='default' filepath='include/drm/drm_edid.h' line='302' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='mfg_week' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='303' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='136'>
+ <var-decl name='mfg_year' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='304' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='144'>
+ <var-decl name='version' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='306' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='152'>
+ <var-decl name='revision' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='307' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='160'>
+ <var-decl name='input' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='309' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='168'>
+ <var-decl name='width_cm' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='310' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='176'>
+ <var-decl name='height_cm' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='311' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='184'>
+ <var-decl name='gamma' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='312' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='features' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='313' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='200'>
+ <var-decl name='red_green_lo' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='315' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='208'>
+ <var-decl name='black_white_lo' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='316' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='216'>
+ <var-decl name='red_x' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='317' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='224'>
+ <var-decl name='red_y' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='318' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='232'>
+ <var-decl name='green_x' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='319' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='240'>
+ <var-decl name='green_y' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='320' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='248'>
+ <var-decl name='blue_x' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='321' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='blue_y' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='322' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='264'>
+ <var-decl name='white_x' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='323' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='272'>
+ <var-decl name='white_y' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='324' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='280'>
+ <var-decl name='established_timings' type-id='93a90c7b' visibility='default' filepath='include/drm/drm_edid.h' line='326' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='304'>
+ <var-decl name='standard_timings' type-id='521a7abd' visibility='default' filepath='include/drm/drm_edid.h' line='328' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='432'>
+ <var-decl name='detailed_timings' type-id='c93659c6' visibility='default' filepath='include/drm/drm_edid.h' line='330' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1008'>
+ <var-decl name='extensions' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='332' column='1'/>
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+ <parameter type-id='c91d1bf1' name='edid' filepath='drivers/gpu/drm/drm_edid.c' line='5101' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_do_get_edid' mangled-name='drm_do_get_edid' filepath='drivers/gpu/drm/drm_edid.c' line='1660' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_do_get_edid'>
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+ <parameter type-id='e879a339' name='get_edid_block' filepath='drivers/gpu/drm/drm_edid.c' line='1661' column='1'/>
+ <parameter type-id='eaa32e2f' name='data' filepath='drivers/gpu/drm/drm_edid.c' line='1663' column='1'/>
+ <return type-id='c91d1bf1'/>
+ </function-decl>
+ <function-decl name='drm_detect_hdmi_monitor' mangled-name='drm_detect_hdmi_monitor' filepath='drivers/gpu/drm/drm_edid.c' line='4576' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_detect_hdmi_monitor'>
+ <parameter type-id='c91d1bf1' name='edid' filepath='drivers/gpu/drm/drm_edid.c' line='4576' column='1'/>
+ <return type-id='b50a4934'/>
+ </function-decl>
+ <function-decl name='drm_set_preferred_mode' mangled-name='drm_set_preferred_mode' filepath='drivers/gpu/drm/drm_edid.c' line='5226' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_set_preferred_mode'>
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+ <parameter type-id='95e97e5e' name='hpref' filepath='drivers/gpu/drm/drm_edid.c' line='5227' column='1'/>
+ <parameter type-id='95e97e5e' name='vpref' filepath='drivers/gpu/drm/drm_edid.c' line='5227' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
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+ <parameter type-id='eaa32e2f'/>
+ <parameter type-id='8bff8096'/>
+ <parameter type-id='f0981eeb'/>
+ <parameter type-id='b59d7dce'/>
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+ </function-type>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/gpu/drm/drm_encoder.c' language='LANG_C89'>
+ <function-decl name='drm_encoder_cleanup' mangled-name='drm_encoder_cleanup' filepath='drivers/gpu/drm/drm_encoder.c' line='157' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_encoder_cleanup'>
+ <parameter type-id='74d89ebd' name='encoder' filepath='drivers/gpu/drm/drm_encoder.c' line='157' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/gpu/drm/drm_encoder_slave.c' language='LANG_C89'>
+ <function-decl name='i2c_unregister_device' mangled-name='i2c_unregister_device' filepath='include/linux/i2c.h' line='477' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_unregister_device'>
+ <parameter type-id='3e31633b'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/gpu/drm/drm_file.c' language='LANG_C89'>
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+ </array-type-def>
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+ <data-member access='public'>
+ <var-decl name='d_canonical_path' type-id='8581ac2b' visibility='default' filepath='include/linux/dcache.h' line='154' column='1'/>
+ </data-member>
+ <data-member access='public'>
+ <var-decl name='__UNIQUE_ID_android_kabi_hide34' type-id='156952c4' visibility='default' filepath='include/linux/dcache.h' line='154' column='1'/>
+ </data-member>
+ <data-member access='public'>
+ <var-decl name='' type-id='2a125a28' visibility='default' filepath='include/linux/dcache.h' line='154' column='1'/>
+ </data-member>
+ </union-decl>
+ <class-decl name='drm_lock_data' size-in-bits='512' is-struct='yes' visibility='default' filepath='include/drm/drm_auth.h' line='37' column='1' id='7e19749d'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='hw_lock' type-id='19248fba' visibility='default' filepath='include/drm/drm_auth.h' line='38' column='1'/>
+ </data-member>
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+ <var-decl name='file_priv' type-id='9e99ecc1' visibility='default' filepath='include/drm/drm_auth.h' line='39' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='lock_queue' type-id='b5ab048f' visibility='default' filepath='include/drm/drm_auth.h' line='40' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='320'>
+ <var-decl name='lock_time' type-id='7359adad' visibility='default' filepath='include/drm/drm_auth.h' line='41' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='384'>
+ <var-decl name='spinlock' type-id='fb4018a0' visibility='default' filepath='include/drm/drm_auth.h' line='42' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='416'>
+ <var-decl name='kernel_waiters' type-id='8f92235e' visibility='default' filepath='include/drm/drm_auth.h' line='43' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='448'>
+ <var-decl name='user_waiters' type-id='8f92235e' visibility='default' filepath='include/drm/drm_auth.h' line='44' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='480'>
+ <var-decl name='idle_has_lock' type-id='95e97e5e' visibility='default' filepath='include/drm/drm_auth.h' line='45' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='drm_buf_entry' size-in-bits='320' is-struct='yes' visibility='default' filepath='include/drm/drm_legacy.h' line='86' column='1' id='2a455b43'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='buf_size' type-id='95e97e5e' visibility='default' filepath='include/drm/drm_legacy.h' line='87' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='32'>
+ <var-decl name='buf_count' type-id='95e97e5e' visibility='default' filepath='include/drm/drm_legacy.h' line='88' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='buflist' type-id='982021ee' visibility='default' filepath='include/drm/drm_legacy.h' line='89' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='seg_count' type-id='95e97e5e' visibility='default' filepath='include/drm/drm_legacy.h' line='90' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='160'>
+ <var-decl name='page_order' type-id='95e97e5e' visibility='default' filepath='include/drm/drm_legacy.h' line='91' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='seglist' type-id='c4d8892a' visibility='default' filepath='include/drm/drm_legacy.h' line='92' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='low_mark' type-id='95e97e5e' visibility='default' filepath='include/drm/drm_legacy.h' line='94' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='288'>
+ <var-decl name='high_mark' type-id='95e97e5e' visibility='default' filepath='include/drm/drm_legacy.h' line='95' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='drm_buf' size-in-bits='704' is-struct='yes' visibility='default' filepath='include/drm/drm_legacy.h' line='50' column='1' id='5d5bc408'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='idx' type-id='95e97e5e' visibility='default' filepath='include/drm/drm_legacy.h' line='51' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='32'>
+ <var-decl name='total' type-id='95e97e5e' visibility='default' filepath='include/drm/drm_legacy.h' line='52' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='order' type-id='95e97e5e' visibility='default' filepath='include/drm/drm_legacy.h' line='53' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='96'>
+ <var-decl name='used' type-id='95e97e5e' visibility='default' filepath='include/drm/drm_legacy.h' line='54' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='offset' type-id='7359adad' visibility='default' filepath='include/drm/drm_legacy.h' line='55' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='address' type-id='eaa32e2f' visibility='default' filepath='include/drm/drm_legacy.h' line='56' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='bus_address' type-id='7359adad' visibility='default' filepath='include/drm/drm_legacy.h' line='57' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='320'>
+ <var-decl name='next' type-id='982021ee' visibility='default' filepath='include/drm/drm_legacy.h' line='58' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='384'>
+ <var-decl name='waiting' type-id='e024ff18' visibility='default' filepath='include/drm/drm_legacy.h' line='59' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='416'>
+ <var-decl name='pending' type-id='e024ff18' visibility='default' filepath='include/drm/drm_legacy.h' line='60' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='448'>
+ <var-decl name='file_priv' type-id='9e99ecc1' visibility='default' filepath='include/drm/drm_legacy.h' line='61' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='512'>
+ <var-decl name='context' type-id='95e97e5e' visibility='default' filepath='include/drm/drm_legacy.h' line='62' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='544'>
+ <var-decl name='while_locked' type-id='95e97e5e' visibility='default' filepath='include/drm/drm_legacy.h' line='63' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='576'>
+ <var-decl name='list' type-id='08f5ca1f' visibility='default' filepath='include/drm/drm_legacy.h' line='71' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='608'>
+ <var-decl name='dev_priv_size' type-id='95e97e5e' visibility='default' filepath='include/drm/drm_legacy.h' line='73' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='640'>
+ <var-decl name='dev_private' type-id='eaa32e2f' visibility='default' filepath='include/drm/drm_legacy.h' line='74' column='1'/>
+ </data-member>
+ </class-decl>
+ <enum-decl name='__anonymous_enum__' is-anonymous='yes' filepath='include/drm/drm_legacy.h' line='64' column='1' id='08f5ca1f'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='DRM_LIST_NONE' value='0'/>
+ <enumerator name='DRM_LIST_FREE' value='1'/>
+ <enumerator name='DRM_LIST_WAIT' value='2'/>
+ <enumerator name='DRM_LIST_PEND' value='3'/>
+ <enumerator name='DRM_LIST_PRIO' value='4'/>
+ <enumerator name='DRM_LIST_RECLAIM' value='5'/>
+ </enum-decl>
+ <class-decl name='drm_dma_handle' size-in-bits='192' is-struct='yes' visibility='default' filepath='include/drm/drm_legacy.h' line='77' column='1' id='86f3cb3e'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='busaddr' type-id='cf29c9b3' visibility='default' filepath='include/drm/drm_legacy.h' line='78' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='vaddr' type-id='eaa32e2f' visibility='default' filepath='include/drm/drm_legacy.h' line='79' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='size' type-id='b59d7dce' visibility='default' filepath='include/drm/drm_legacy.h' line='80' column='1'/>
+ </data-member>
+ </class-decl>
+ <enum-decl name='__anonymous_enum__1' is-anonymous='yes' filepath='include/drm/drm_legacy.h' line='110' column='1' id='08f5ca1e'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='_DRM_DMA_USE_AGP' value='1'/>
+ <enumerator name='_DRM_DMA_USE_SG' value='2'/>
+ <enumerator name='_DRM_DMA_USE_FB' value='4'/>
+ <enumerator name='_DRM_DMA_USE_PCI_RO' value='8'/>
+ </enum-decl>
+ <enum-decl name='drm_map_type' filepath='include/uapi/drm/drm.h' line='188' column='1' id='95b8b1ed'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='_DRM_FRAME_BUFFER' value='0'/>
+ <enumerator name='_DRM_REGISTERS' value='1'/>
+ <enumerator name='_DRM_SHM' value='2'/>
+ <enumerator name='_DRM_AGP' value='3'/>
+ <enumerator name='_DRM_SCATTER_GATHER' value='4'/>
+ <enumerator name='_DRM_CONSISTENT' value='5'/>
+ </enum-decl>
+ <enum-decl name='drm_map_flags' filepath='include/uapi/drm/drm.h' line='200' column='1' id='e9cbe84c'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='_DRM_RESTRICTED' value='1'/>
+ <enumerator name='_DRM_READ_ONLY' value='2'/>
+ <enumerator name='_DRM_LOCKED' value='4'/>
+ <enumerator name='_DRM_KERNEL' value='8'/>
+ <enumerator name='_DRM_WRITE_COMBINING' value='16'/>
+ <enumerator name='_DRM_CONTAINS_LOCK' value='32'/>
+ <enumerator name='_DRM_REMOVABLE' value='64'/>
+ <enumerator name='_DRM_DRIVER' value='128'/>
+ </enum-decl>
+ <pointer-type-def type-id='5d5bc408' size-in-bits='64' id='982021ee'/>
+ <pointer-type-def type-id='982021ee' size-in-bits='64' id='3e95278c'/>
+ <pointer-type-def type-id='86f3cb3e' size-in-bits='64' id='fb223444'/>
+ <pointer-type-def type-id='fb223444' size-in-bits='64' id='c4d8892a'/>
+ <pointer-type-def type-id='2aa44dc9' size-in-bits='64' id='16ab0351'/>
+ <function-decl name='drm_open' mangled-name='drm_open' filepath='drivers/gpu/drm/drm_file.c' line='312' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_open'>
+ <parameter type-id='7e666abe' name='inode' filepath='drivers/gpu/drm/drm_file.c' line='312' column='1'/>
+ <parameter type-id='77e79a4b' name='filp' filepath='drivers/gpu/drm/drm_file.c' line='312' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_irq_uninstall' mangled-name='drm_irq_uninstall' filepath='include/drm/drm_irq.h' line='30' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_irq_uninstall'>
+ <parameter type-id='8898134d'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_release' mangled-name='drm_release' filepath='drivers/gpu/drm/drm_file.c' line='487' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_release'>
+ <parameter type-id='7e666abe' name='inode' filepath='drivers/gpu/drm/drm_file.c' line='487' column='1'/>
+ <parameter type-id='77e79a4b' name='filp' filepath='drivers/gpu/drm/drm_file.c' line='487' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_read' mangled-name='drm_read' filepath='drivers/gpu/drm/drm_file.c' line='536' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_read'>
+ <parameter type-id='77e79a4b' name='filp' filepath='drivers/gpu/drm/drm_file.c' line='536' column='1'/>
+ <parameter type-id='26a90f95' name='buffer' filepath='drivers/gpu/drm/drm_file.c' line='536' column='1'/>
+ <parameter type-id='b59d7dce' name='count' filepath='drivers/gpu/drm/drm_file.c' line='537' column='1'/>
+ <parameter type-id='b53e8dbb' name='offset' filepath='drivers/gpu/drm/drm_file.c' line='537' column='1'/>
+ <return type-id='79a0948f'/>
+ </function-decl>
+ <function-decl name='drm_poll' mangled-name='drm_poll' filepath='drivers/gpu/drm/drm_file.c' line='623' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_poll'>
+ <parameter type-id='77e79a4b' name='filp' filepath='drivers/gpu/drm/drm_file.c' line='623' column='1'/>
+ <parameter type-id='f0acc909' name='wait' filepath='drivers/gpu/drm/drm_file.c' line='623' column='1'/>
+ <return type-id='8f254b08'/>
+ </function-decl>
+ <function-decl name='drm_event_reserve_init_locked' mangled-name='drm_event_reserve_init_locked' filepath='drivers/gpu/drm/drm_file.c' line='661' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_event_reserve_init_locked'>
+ <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_file.c' line='661' column='1'/>
+ <parameter type-id='9e99ecc1' name='file_priv' filepath='drivers/gpu/drm/drm_file.c' line='662' column='1'/>
+ <parameter type-id='16ab0351' name='p' filepath='drivers/gpu/drm/drm_file.c' line='663' column='1'/>
+ <parameter type-id='5b35aab5' name='e' filepath='drivers/gpu/drm/drm_file.c' line='664' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_send_event_locked' mangled-name='drm_send_event_locked' filepath='drivers/gpu/drm/drm_file.c' line='760' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_send_event_locked'>
+ <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_file.c' line='760' column='1'/>
+ <parameter type-id='16ab0351' name='e' filepath='drivers/gpu/drm/drm_file.c' line='760' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='dma_fence_signal' mangled-name='dma_fence_signal' filepath='include/linux/dma-fence.h' line='340' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_signal'>
+ <parameter type-id='28271da3'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/gpu/drm/drm_fourcc.c' language='LANG_C89'>
+ <function-decl name='drm_format_info' mangled-name='drm_format_info' filepath='drivers/gpu/drm/drm_fourcc.c' line='199' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_format_info'>
+ <parameter type-id='19c2251e' name='format' filepath='drivers/gpu/drm/drm_fourcc.c' line='199' column='1'/>
+ <return type-id='f10b2208'/>
+ </function-decl>
+ <function-decl name='drm_format_num_planes' mangled-name='drm_format_num_planes' filepath='drivers/gpu/drm/drm_fourcc.c' line='241' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_format_num_planes'>
+ <parameter type-id='8f92235e' name='format' filepath='drivers/gpu/drm/drm_fourcc.c' line='241' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_format_plane_cpp' mangled-name='drm_format_plane_cpp' filepath='drivers/gpu/drm/drm_fourcc.c' line='258' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_format_plane_cpp'>
+ <parameter type-id='8f92235e' name='format' filepath='drivers/gpu/drm/drm_fourcc.c' line='258' column='1'/>
+ <parameter type-id='95e97e5e' name='plane' filepath='drivers/gpu/drm/drm_fourcc.c' line='258' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_format_horz_chroma_subsampling' mangled-name='drm_format_horz_chroma_subsampling' filepath='drivers/gpu/drm/drm_fourcc.c' line='278' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_format_horz_chroma_subsampling'>
+ <parameter type-id='8f92235e' name='format' filepath='drivers/gpu/drm/drm_fourcc.c' line='278' column='1'/>
+ <return type-id='95e97e5e'/>
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+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
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+ </data-member>
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+ <pointer-type-def type-id='31b9d99e' size-in-bits='64' id='a51b5fb8'/>
+ <function-decl name='mipi_dsi_host_register' mangled-name='mipi_dsi_host_register' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='285' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mipi_dsi_host_register'>
+ <parameter type-id='c149fe34' name='host' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='285' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='of_modalias_node' mangled-name='of_modalias_node' filepath='include/linux/of.h' line='368' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_modalias_node'>
+ <parameter type-id='9a537bbe'/>
+ <parameter type-id='26a90f95'/>
+ <parameter type-id='95e97e5e'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='mipi_dsi_host_unregister' mangled-name='mipi_dsi_host_unregister' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='313' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mipi_dsi_host_unregister'>
+ <parameter type-id='c149fe34' name='host' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='313' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='mipi_dsi_create_packet' mangled-name='mipi_dsi_create_packet' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='445' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mipi_dsi_create_packet'>
+ <parameter type-id='368a0122' name='packet' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='445' column='1'/>
+ <parameter type-id='001b67aa' name='msg' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='446' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='mipi_dsi_dcs_write_buffer' mangled-name='mipi_dsi_dcs_write_buffer' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='656' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mipi_dsi_dcs_write_buffer'>
+ <parameter type-id='182be7cc' name='dsi' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='656' column='1'/>
+ <parameter type-id='eaa32e2f' name='data' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='657' column='1'/>
+ <parameter type-id='b59d7dce' name='len' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='657' column='1'/>
+ <return type-id='79a0948f'/>
+ </function-decl>
+ <function-decl name='mipi_dsi_dcs_write' mangled-name='mipi_dsi_dcs_write' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='699' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mipi_dsi_dcs_write'>
+ <parameter type-id='182be7cc' name='dsi' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='699' column='1'/>
+ <parameter type-id='f9b06939' name='cmd' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='699' column='1'/>
+ <parameter type-id='eaa32e2f' name='data' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='700' column='1'/>
+ <parameter type-id='b59d7dce' name='len' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='700' column='1'/>
+ <return type-id='79a0948f'/>
+ </function-decl>
+ <function-decl name='mipi_dsi_dcs_read' mangled-name='mipi_dsi_dcs_read' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='739' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mipi_dsi_dcs_read'>
+ <parameter type-id='182be7cc' name='dsi' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='739' column='1'/>
+ <parameter type-id='f9b06939' name='cmd' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='739' column='1'/>
+ <parameter type-id='eaa32e2f' name='data' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='739' column='1'/>
+ <parameter type-id='b59d7dce' name='len' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='740' column='1'/>
+ <return type-id='79a0948f'/>
+ </function-decl>
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+ <parameter type-id='182be7cc'/>
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+ <function-type size-in-bits='64' id='31b9d99e'>
+ <parameter type-id='c149fe34'/>
+ <parameter type-id='001b67aa'/>
+ <return type-id='79a0948f'/>
+ </function-type>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/gpu/drm/drm_mm.c' language='LANG_C89'>
+ <enum-decl name='drm_mm_insert_mode' filepath='include/drm/drm_mm.h' line='68' column='1' id='24e1ec7e'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='DRM_MM_INSERT_BEST' value='0'/>
+ <enumerator name='DRM_MM_INSERT_LOW' value='1'/>
+ <enumerator name='DRM_MM_INSERT_HIGH' value='2'/>
+ <enumerator name='DRM_MM_INSERT_EVICT' value='3'/>
+ <enumerator name='DRM_MM_INSERT_ONCE' value='2147483648'/>
+ <enumerator name='DRM_MM_INSERT_HIGHEST' value='2147483650'/>
+ <enumerator name='DRM_MM_INSERT_LOWEST' value='2147483649'/>
+ </enum-decl>
+ <qualified-type-def type-id='0ee978f1' const='yes' id='60f31a4e'/>
+ <pointer-type-def type-id='60498a7e' size-in-bits='64' id='6368b074'/>
+ <qualified-type-def type-id='6368b074' const='yes' id='7c50e73f'/>
+ <function-decl name='drm_mm_insert_node_in_range' mangled-name='drm_mm_insert_node_in_range' filepath='drivers/gpu/drm/drm_mm.c' line='474' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mm_insert_node_in_range'>
+ <parameter type-id='60f31a4e' name='mm' filepath='drivers/gpu/drm/drm_mm.c' line='474' column='1'/>
+ <parameter type-id='7c50e73f' name='node' filepath='drivers/gpu/drm/drm_mm.c' line='475' column='1'/>
+ <parameter type-id='91ce1af9' name='size' filepath='drivers/gpu/drm/drm_mm.c' line='476' column='1'/>
+ <parameter type-id='91ce1af9' name='alignment' filepath='drivers/gpu/drm/drm_mm.c' line='476' column='1'/>
+ <parameter type-id='7359adad' name='color' filepath='drivers/gpu/drm/drm_mm.c' line='477' column='1'/>
+ <parameter type-id='91ce1af9' name='range_start' filepath='drivers/gpu/drm/drm_mm.c' line='478' column='1'/>
+ <parameter type-id='91ce1af9' name='range_end' filepath='drivers/gpu/drm/drm_mm.c' line='478' column='1'/>
+ <parameter type-id='24e1ec7e' name='mode' filepath='drivers/gpu/drm/drm_mm.c' line='479' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_mm_remove_node' mangled-name='drm_mm_remove_node' filepath='drivers/gpu/drm/drm_mm.c' line='582' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mm_remove_node'>
+ <parameter type-id='6368b074' name='node' filepath='drivers/gpu/drm/drm_mm.c' line='582' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_mm_init' mangled-name='drm_mm_init' filepath='drivers/gpu/drm/drm_mm.c' line='917' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mm_init'>
+ <parameter type-id='0ee978f1' name='mm' filepath='drivers/gpu/drm/drm_mm.c' line='917' column='1'/>
+ <parameter type-id='91ce1af9' name='start' filepath='drivers/gpu/drm/drm_mm.c' line='917' column='1'/>
+ <parameter type-id='91ce1af9' name='size' filepath='drivers/gpu/drm/drm_mm.c' line='917' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_mm_takedown' mangled-name='drm_mm_takedown' filepath='drivers/gpu/drm/drm_mm.c' line='947' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mm_takedown'>
+ <parameter type-id='0ee978f1' name='mm' filepath='drivers/gpu/drm/drm_mm.c' line='947' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/gpu/drm/drm_mode_config.c' language='LANG_C89'>
+ <function-decl name='drm_mode_config_init' mangled-name='drm_mode_config_init' filepath='drivers/gpu/drm/drm_mode_config.c' line='371' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_config_init'>
+ <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_mode_config.c' line='371' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_mode_config_cleanup' mangled-name='drm_mode_config_cleanup' filepath='drivers/gpu/drm/drm_mode_config.c' line='417' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_config_cleanup'>
+ <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_mode_config.c' line='417' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/gpu/drm/drm_mode_object.c' language='LANG_C89'>
+ <function-decl name='drm_mode_object_find' mangled-name='drm_mode_object_find' filepath='drivers/gpu/drm/drm_mode_object.c' line='163' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_object_find'>
+ <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_mode_object.c' line='163' column='1'/>
+ <parameter type-id='9e99ecc1' name='file_priv' filepath='drivers/gpu/drm/drm_mode_object.c' line='164' column='1'/>
+ <parameter type-id='8f92235e' name='id' filepath='drivers/gpu/drm/drm_mode_object.c' line='165' column='1'/>
+ <parameter type-id='8f92235e' name='type' filepath='drivers/gpu/drm/drm_mode_object.c' line='165' column='1'/>
+ <return type-id='c5417630'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/gpu/drm/drm_modes.c' language='LANG_C89'>
+ <pointer-type-def type-id='458106cb' size-in-bits='64' id='20e1573b'/>
+ <function-decl name='drm_cvt_mode' mangled-name='drm_cvt_mode' filepath='drivers/gpu/drm/drm_modes.c' line='143' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_cvt_mode'>
+ <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_modes.c' line='143' column='1'/>
+ <parameter type-id='95e97e5e' name='hdisplay' filepath='drivers/gpu/drm/drm_modes.c' line='143' column='1'/>
+ <parameter type-id='95e97e5e' name='vdisplay' filepath='drivers/gpu/drm/drm_modes.c' line='144' column='1'/>
+ <parameter type-id='95e97e5e' name='vrefresh' filepath='drivers/gpu/drm/drm_modes.c' line='144' column='1'/>
+ <parameter type-id='b50a4934' name='reduced' filepath='drivers/gpu/drm/drm_modes.c' line='145' column='1'/>
+ <parameter type-id='b50a4934' name='interlaced' filepath='drivers/gpu/drm/drm_modes.c' line='145' column='1'/>
+ <parameter type-id='b50a4934' name='margins' filepath='drivers/gpu/drm/drm_modes.c' line='145' column='1'/>
+ <return type-id='11e02f83'/>
+ </function-decl>
+ <function-decl name='drm_mode_set_name' mangled-name='drm_mode_set_name' filepath='drivers/gpu/drm/drm_modes.c' line='736' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_set_name'>
+ <parameter type-id='11e02f83' name='mode' filepath='drivers/gpu/drm/drm_modes.c' line='736' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_mode_equal' mangled-name='drm_mode_equal' filepath='drivers/gpu/drm/drm_modes.c' line='1052' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_equal'>
+ <parameter type-id='745b39e8' name='mode1' filepath='drivers/gpu/drm/drm_modes.c' line='1052' column='1'/>
+ <parameter type-id='745b39e8' name='mode2' filepath='drivers/gpu/drm/drm_modes.c' line='1053' column='1'/>
+ <return type-id='b50a4934'/>
+ </function-decl>
+ <function-decl name='drm_match_cea_mode' mangled-name='drm_match_cea_mode' filepath='include/drm/drm_edid.h' line='486' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_match_cea_mode'>
+ <parameter type-id='745b39e8'/>
+ <return type-id='002ac4a6'/>
+ </function-decl>
+ <function-decl name='drm_mode_parse_command_line_for_connector' mangled-name='drm_mode_parse_command_line_for_connector' filepath='drivers/gpu/drm/drm_modes.c' line='1438' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_parse_command_line_for_connector'>
+ <parameter type-id='80f4b756' name='mode_option' filepath='drivers/gpu/drm/drm_modes.c' line='1438' column='1'/>
+ <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_modes.c' line='1439' column='1'/>
+ <parameter type-id='20e1573b' name='mode' filepath='drivers/gpu/drm/drm_modes.c' line='1440' column='1'/>
+ <return type-id='b50a4934'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/gpu/drm/drm_modeset_helper.c' language='LANG_C89'>
+ <function-decl name='drm_helper_mode_fill_fb_struct' mangled-name='drm_helper_mode_fill_fb_struct' filepath='drivers/gpu/drm/drm_modeset_helper.c' line='77' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_helper_mode_fill_fb_struct'>
+ <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_modeset_helper.c' line='77' column='1'/>
+ <parameter type-id='7b332e1c' name='fb' filepath='drivers/gpu/drm/drm_modeset_helper.c' line='78' column='1'/>
+ <parameter type-id='92ed24a5' name='mode_cmd' filepath='drivers/gpu/drm/drm_modeset_helper.c' line='79' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/gpu/drm/drm_modeset_lock.c' language='LANG_C89'>
+ <function-decl name='drm_modeset_acquire_fini' mangled-name='drm_modeset_acquire_fini' filepath='drivers/gpu/drm/drm_modeset_lock.c' line='209' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_acquire_fini'>
+ <parameter type-id='d1499e71' name='ctx' filepath='drivers/gpu/drm/drm_modeset_lock.c' line='209' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/gpu/drm/drm_of.c' language='LANG_C89'>
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+ <class-decl name='component_master_ops' size-in-bits='128' is-struct='yes' visibility='default' filepath='include/linux/component.h' line='24' column='1' id='85fa4490'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='bind' type-id='613d39f5' visibility='default' filepath='include/linux/component.h' line='25' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='unbind' type-id='dd787f72' visibility='default' filepath='include/linux/component.h' line='26' column='1'/>
+ </data-member>
+ </class-decl>
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+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='port' type-id='f0981eeb' visibility='default' filepath='include/linux/of_graph.h' line='24' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='32'>
+ <var-decl name='id' type-id='f0981eeb' visibility='default' filepath='include/linux/of_graph.h' line='25' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='local_node' type-id='0afa6ea3' visibility='default' filepath='include/linux/of_graph.h' line='26' column='1'/>
+ </data-member>
+ </class-decl>
+ <pointer-type-def type-id='37c0f586' size-in-bits='64' id='7d9421ac'/>
+ <pointer-type-def type-id='7d9421ac' size-in-bits='64' id='3630c5f2'/>
+ <qualified-type-def type-id='85fa4490' const='yes' id='ec8469f9'/>
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+ <pointer-type-def type-id='5821ac64' size-in-bits='64' id='a5eb3c12'/>
+ <function-decl name='of_graph_get_next_endpoint' mangled-name='of_graph_get_next_endpoint' filepath='include/linux/of_graph.h' line='45' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_graph_get_next_endpoint'>
+ <parameter type-id='0afa6ea3'/>
+ <parameter type-id='9a537bbe'/>
+ <return type-id='9a537bbe'/>
+ </function-decl>
+ <function-decl name='drm_of_component_match_add' mangled-name='drm_of_component_match_add' filepath='drivers/gpu/drm/drm_of.c' line='89' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_of_component_match_add'>
+ <parameter type-id='fa0b179b' name='master' filepath='drivers/gpu/drm/drm_of.c' line='89' column='1'/>
+ <parameter type-id='3630c5f2' name='matchptr' filepath='drivers/gpu/drm/drm_of.c' line='90' column='1'/>
+ <parameter type-id='92d15ae9' name='compare' filepath='drivers/gpu/drm/drm_of.c' line='91' column='1'/>
+ <parameter type-id='9a537bbe' name='node' filepath='drivers/gpu/drm/drm_of.c' line='92' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='component_match_add_release' mangled-name='component_match_add_release' filepath='include/linux/component.h' line='36' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='component_match_add_release'>
+ <parameter type-id='fa0b179b'/>
+ <parameter type-id='3630c5f2'/>
+ <parameter type-id='680bf43c'/>
+ <parameter type-id='92d15ae9'/>
+ <parameter type-id='eaa32e2f'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='of_graph_get_remote_port_parent' mangled-name='of_graph_get_remote_port_parent' filepath='include/linux/of_graph.h' line='52' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_graph_get_remote_port_parent'>
+ <parameter type-id='0afa6ea3'/>
+ <return type-id='9a537bbe'/>
+ </function-decl>
+ <function-decl name='component_master_add_with_match' mangled-name='component_master_add_with_match' filepath='include/linux/component.h' line='34' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='component_master_add_with_match'>
+ <parameter type-id='fa0b179b'/>
+ <parameter type-id='27729729'/>
+ <parameter type-id='7d9421ac'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='of_graph_parse_endpoint' mangled-name='of_graph_parse_endpoint' filepath='include/linux/of_graph.h' line='41' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_graph_parse_endpoint'>
+ <parameter type-id='0afa6ea3'/>
+ <parameter type-id='a5eb3c12'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='of_graph_get_remote_node' mangled-name='of_graph_get_remote_node' filepath='include/linux/of_graph.h' line='55' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_graph_get_remote_node'>
+ <parameter type-id='0afa6ea3'/>
+ <parameter type-id='f0981eeb'/>
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+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/gpu/drm/drm_panel.c' language='LANG_C89'>
+ <function-decl name='drm_panel_init' mangled-name='drm_panel_init' filepath='drivers/gpu/drm/drm_panel.c' line='48' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_panel_init'>
+ <parameter type-id='c5491077' name='panel' filepath='drivers/gpu/drm/drm_panel.c' line='48' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_panel_add' mangled-name='drm_panel_add' filepath='drivers/gpu/drm/drm_panel.c' line='64' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_panel_add'>
+ <parameter type-id='c5491077' name='panel' filepath='drivers/gpu/drm/drm_panel.c' line='64' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_panel_remove' mangled-name='drm_panel_remove' filepath='drivers/gpu/drm/drm_panel.c' line='80' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_panel_remove'>
+ <parameter type-id='c5491077' name='panel' filepath='drivers/gpu/drm/drm_panel.c' line='80' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='of_drm_find_panel' mangled-name='of_drm_find_panel' filepath='drivers/gpu/drm/drm_panel.c' line='151' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_drm_find_panel'>
+ <parameter type-id='0afa6ea3' name='np' filepath='drivers/gpu/drm/drm_panel.c' line='151' column='1'/>
+ <return type-id='c5491077'/>
+ </function-decl>
+ <function-decl name='drm_panel_notifier_register' mangled-name='drm_panel_notifier_register' filepath='drivers/gpu/drm/drm_panel.c' line='173' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_panel_notifier_register'>
+ <parameter type-id='c5491077' name='panel' filepath='drivers/gpu/drm/drm_panel.c' line='173' column='1'/>
+ <parameter type-id='d504f73d' name='nb' filepath='drivers/gpu/drm/drm_panel.c' line='174' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_panel_notifier_unregister' mangled-name='drm_panel_notifier_unregister' filepath='drivers/gpu/drm/drm_panel.c' line='180' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_panel_notifier_unregister'>
+ <parameter type-id='c5491077' name='panel' filepath='drivers/gpu/drm/drm_panel.c' line='180' column='1'/>
+ <parameter type-id='d504f73d' name='nb' filepath='drivers/gpu/drm/drm_panel.c' line='181' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_panel_notifier_call_chain' mangled-name='drm_panel_notifier_call_chain' filepath='drivers/gpu/drm/drm_panel.c' line='187' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_panel_notifier_call_chain'>
+ <parameter type-id='c5491077' name='panel' filepath='drivers/gpu/drm/drm_panel.c' line='187' column='1'/>
+ <parameter type-id='7359adad' name='val' filepath='drivers/gpu/drm/drm_panel.c' line='188' column='1'/>
+ <parameter type-id='eaa32e2f' name='v' filepath='drivers/gpu/drm/drm_panel.c' line='188' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/gpu/drm/drm_plane_helper.c' language='LANG_C89'>
+ <function-decl name='drm_plane_cleanup' mangled-name='drm_plane_cleanup' filepath='include/drm/drm_plane.h' line='699' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_plane_cleanup'>
+ <parameter type-id='a6711537'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_crtc_vblank_get' mangled-name='drm_crtc_vblank_get' filepath='include/drm/drm_vblank.h' line='211' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_vblank_get'>
+ <parameter type-id='b64ad7cb'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_crtc_vblank_put' mangled-name='drm_crtc_vblank_put' filepath='include/drm/drm_vblank.h' line='212' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_vblank_put'>
+ <parameter type-id='b64ad7cb'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_plane_helper_disable' mangled-name='drm_plane_helper_disable' filepath='drivers/gpu/drm/drm_plane_helper.c' line='505' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_plane_helper_disable'>
+ <parameter type-id='a6711537' name='plane' filepath='drivers/gpu/drm/drm_plane_helper.c' line='505' column='1'/>
+ <parameter type-id='d1499e71' name='ctx' filepath='drivers/gpu/drm/drm_plane_helper.c' line='506' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/gpu/drm/drm_prime.c' language='LANG_C89'>
+ <class-decl name='dma_buf_export_info' size-in-bits='448' is-struct='yes' visibility='default' filepath='include/linux/dma-buf.h' line='500' column='1' id='4da0249b'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='exp_name' type-id='80f4b756' visibility='default' filepath='include/linux/dma-buf.h' line='501' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='owner' type-id='2730d015' visibility='default' filepath='include/linux/dma-buf.h' line='502' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='ops' type-id='c248c11b' visibility='default' filepath='include/linux/dma-buf.h' line='503' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='size' type-id='b59d7dce' visibility='default' filepath='include/linux/dma-buf.h' line='504' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='flags' type-id='95e97e5e' visibility='default' filepath='include/linux/dma-buf.h' line='505' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='320'>
+ <var-decl name='resv' type-id='4702a659' visibility='default' filepath='include/linux/dma-buf.h' line='506' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='384'>
+ <var-decl name='priv' type-id='eaa32e2f' visibility='default' filepath='include/linux/dma-buf.h' line='507' column='1'/>
+ </data-member>
+ </class-decl>
+ <qualified-type-def type-id='4da0249b' const='yes' id='27b6d100'/>
+ <pointer-type-def type-id='27b6d100' size-in-bits='64' id='aecb451e'/>
+ <function-decl name='drm_gem_map_attach' mangled-name='drm_gem_map_attach' filepath='drivers/gpu/drm/drm_prime.c' line='197' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_map_attach'>
+ <parameter type-id='5e4f599b' name='dma_buf' filepath='drivers/gpu/drm/drm_prime.c' line='197' column='1'/>
+ <parameter type-id='e68e04c1' name='attach' filepath='drivers/gpu/drm/drm_prime.c' line='198' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_gem_map_detach' mangled-name='drm_gem_map_detach' filepath='drivers/gpu/drm/drm_prime.c' line='226' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_map_detach'>
+ <parameter type-id='5e4f599b' name='dma_buf' filepath='drivers/gpu/drm/drm_prime.c' line='226' column='1'/>
+ <parameter type-id='e68e04c1' name='attach' filepath='drivers/gpu/drm/drm_prime.c' line='227' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_gem_map_dma_buf' mangled-name='drm_gem_map_dma_buf' filepath='drivers/gpu/drm/drm_prime.c' line='292' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_map_dma_buf'>
+ <parameter type-id='e68e04c1' name='attach' filepath='drivers/gpu/drm/drm_prime.c' line='292' column='1'/>
+ <parameter type-id='eea6b025' name='dir' filepath='drivers/gpu/drm/drm_prime.c' line='293' column='1'/>
+ <return type-id='4adb0e6a'/>
+ </function-decl>
+ <function-decl name='drm_gem_unmap_dma_buf' mangled-name='drm_gem_unmap_dma_buf' filepath='drivers/gpu/drm/drm_prime.c' line='340' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_unmap_dma_buf'>
+ <parameter type-id='e68e04c1' name='attach' filepath='drivers/gpu/drm/drm_prime.c' line='340' column='1'/>
+ <parameter type-id='4adb0e6a' name='sgt' filepath='drivers/gpu/drm/drm_prime.c' line='341' column='1'/>
+ <parameter type-id='eea6b025' name='dir' filepath='drivers/gpu/drm/drm_prime.c' line='342' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='dma_buf_export' mangled-name='dma_buf_export' filepath='include/linux/dma-buf.h' line='540' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_export'>
+ <parameter type-id='aecb451e'/>
+ <return type-id='5e4f599b'/>
+ </function-decl>
+ <function-decl name='drm_gem_dmabuf_release' mangled-name='drm_gem_dmabuf_release' filepath='drivers/gpu/drm/drm_prime.c' line='385' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_dmabuf_release'>
+ <parameter type-id='5e4f599b' name='dma_buf' filepath='drivers/gpu/drm/drm_prime.c' line='385' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_gem_dmabuf_vmap' mangled-name='drm_gem_dmabuf_vmap' filepath='drivers/gpu/drm/drm_prime.c' line='406' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_dmabuf_vmap'>
+ <parameter type-id='5e4f599b' name='dma_buf' filepath='drivers/gpu/drm/drm_prime.c' line='406' column='1'/>
+ <return type-id='eaa32e2f'/>
+ </function-decl>
+ <function-decl name='drm_gem_dmabuf_vunmap' mangled-name='drm_gem_dmabuf_vunmap' filepath='drivers/gpu/drm/drm_prime.c' line='426' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_dmabuf_vunmap'>
+ <parameter type-id='5e4f599b' name='dma_buf' filepath='drivers/gpu/drm/drm_prime.c' line='426' column='1'/>
+ <parameter type-id='eaa32e2f' name='vaddr' filepath='drivers/gpu/drm/drm_prime.c' line='426' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_gem_dmabuf_mmap' mangled-name='drm_gem_dmabuf_mmap' filepath='drivers/gpu/drm/drm_prime.c' line='496' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_dmabuf_mmap'>
+ <parameter type-id='5e4f599b' name='dma_buf' filepath='drivers/gpu/drm/drm_prime.c' line='496' column='1'/>
+ <parameter type-id='2ae08426' name='vma' filepath='drivers/gpu/drm/drm_prime.c' line='496' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_gem_prime_export' mangled-name='drm_gem_prime_export' filepath='drivers/gpu/drm/drm_prime.c' line='553' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_prime_export'>
+ <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_prime.c' line='553' column='1'/>
+ <parameter type-id='abd62a96' name='obj' filepath='drivers/gpu/drm/drm_prime.c' line='554' column='1'/>
+ <parameter type-id='95e97e5e' name='flags' filepath='drivers/gpu/drm/drm_prime.c' line='555' column='1'/>
+ <return type-id='5e4f599b'/>
+ </function-decl>
+ <function-decl name='drm_gem_prime_handle_to_fd' mangled-name='drm_gem_prime_handle_to_fd' filepath='drivers/gpu/drm/drm_prime.c' line='617' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_prime_handle_to_fd'>
+ <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_prime.c' line='617' column='1'/>
+ <parameter type-id='9e99ecc1' name='file_priv' filepath='drivers/gpu/drm/drm_prime.c' line='618' column='1'/>
+ <parameter type-id='8f92235e' name='handle' filepath='drivers/gpu/drm/drm_prime.c' line='618' column='1'/>
+ <parameter type-id='8f92235e' name='flags' filepath='drivers/gpu/drm/drm_prime.c' line='619' column='1'/>
+ <parameter type-id='7292109c' name='prime_fd' filepath='drivers/gpu/drm/drm_prime.c' line='620' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='dma_buf_fd' mangled-name='dma_buf_fd' filepath='include/linux/dma-buf.h' line='542' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_fd'>
+ <parameter type-id='5e4f599b'/>
+ <parameter type-id='95e97e5e'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_gem_prime_mmap' mangled-name='drm_gem_prime_mmap' filepath='drivers/gpu/drm/drm_prime.c' line='716' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_prime_mmap'>
+ <parameter type-id='abd62a96' name='obj' filepath='drivers/gpu/drm/drm_prime.c' line='716' column='1'/>
+ <parameter type-id='2ae08426' name='vma' filepath='drivers/gpu/drm/drm_prime.c' line='716' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='dma_buf_attach' mangled-name='dma_buf_attach' filepath='include/linux/dma-buf.h' line='535' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_attach'>
+ <parameter type-id='5e4f599b'/>
+ <parameter type-id='fa0b179b'/>
+ <return type-id='e68e04c1'/>
+ </function-decl>
+ <function-decl name='dma_buf_map_attachment' mangled-name='dma_buf_map_attachment' filepath='include/linux/dma-buf.h' line='546' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_map_attachment'>
+ <parameter type-id='e68e04c1'/>
+ <parameter type-id='eea6b025'/>
+ <return type-id='4adb0e6a'/>
+ </function-decl>
+ <function-decl name='dma_buf_unmap_attachment' mangled-name='dma_buf_unmap_attachment' filepath='include/linux/dma-buf.h' line='548' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_unmap_attachment'>
+ <parameter type-id='e68e04c1'/>
+ <parameter type-id='4adb0e6a'/>
+ <parameter type-id='eea6b025'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='dma_buf_detach' mangled-name='dma_buf_detach' filepath='include/linux/dma-buf.h' line='537' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_detach'>
+ <parameter type-id='5e4f599b'/>
+ <parameter type-id='e68e04c1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_gem_prime_import' mangled-name='drm_gem_prime_import' filepath='drivers/gpu/drm/drm_prime.c' line='824' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_prime_import'>
+ <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_prime.c' line='824' column='1'/>
+ <parameter type-id='5e4f599b' name='dma_buf' filepath='drivers/gpu/drm/drm_prime.c' line='825' column='1'/>
+ <return type-id='abd62a96'/>
+ </function-decl>
+ <function-decl name='drm_gem_prime_fd_to_handle' mangled-name='drm_gem_prime_fd_to_handle' filepath='drivers/gpu/drm/drm_prime.c' line='843' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_prime_fd_to_handle'>
+ <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_prime.c' line='843' column='1'/>
+ <parameter type-id='9e99ecc1' name='file_priv' filepath='drivers/gpu/drm/drm_prime.c' line='844' column='1'/>
+ <parameter type-id='95e97e5e' name='prime_fd' filepath='drivers/gpu/drm/drm_prime.c' line='844' column='1'/>
+ <parameter type-id='90421557' name='handle' filepath='drivers/gpu/drm/drm_prime.c' line='845' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='dma_buf_get' mangled-name='dma_buf_get' filepath='include/linux/dma-buf.h' line='543' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_get'>
+ <parameter type-id='95e97e5e'/>
+ <return type-id='5e4f599b'/>
+ </function-decl>
+ <function-decl name='drm_prime_pages_to_sg' mangled-name='drm_prime_pages_to_sg' filepath='drivers/gpu/drm/drm_prime.c' line='953' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_prime_pages_to_sg'>
+ <parameter type-id='9f93c9da' name='pages' filepath='drivers/gpu/drm/drm_prime.c' line='953' column='1'/>
+ <parameter type-id='f0981eeb' name='nr_pages' filepath='drivers/gpu/drm/drm_prime.c' line='953' column='1'/>
+ <return type-id='4adb0e6a'/>
+ </function-decl>
+ <function-decl name='drm_prime_gem_destroy' mangled-name='drm_prime_gem_destroy' filepath='drivers/gpu/drm/drm_prime.c' line='1027' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_prime_gem_destroy'>
+ <parameter type-id='abd62a96' name='obj' filepath='drivers/gpu/drm/drm_prime.c' line='1027' column='1'/>
+ <parameter type-id='4adb0e6a' name='sg' filepath='drivers/gpu/drm/drm_prime.c' line='1027' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/gpu/drm/drm_probe_helper.c' language='LANG_C89'>
+ <array-type-def dimensions='1' type-id='ebccef5f' size-in-bits='96' id='e6001147'>
+ <subrange length='4' type-id='7ff19f0f' id='16fe7105'/>
+ </array-type-def>
+ <array-type-def dimensions='1' type-id='d30cc3b8' size-in-bits='576' id='c93659c6'>
+ <subrange length='4' type-id='7ff19f0f' id='16fe7105'/>
+ </array-type-def>
+ <array-type-def dimensions='1' type-id='0bb26f49' size-in-bits='96' id='0e1e8cdf'>
+ <subrange length='6' type-id='7ff19f0f' id='52fa524b'/>
+ </array-type-def>
+ <array-type-def dimensions='1' type-id='0bb26f49' size-in-bits='128' id='521a7abd'>
+ <subrange length='8' type-id='7ff19f0f' id='56e0c0b1'/>
+ </array-type-def>
+ <array-type-def dimensions='1' type-id='f9b06939' size-in-bits='104' id='097d53a4'>
+ <subrange length='13' type-id='7ff19f0f' id='487fded1'/>
+ </array-type-def>
+ <array-type-def dimensions='1' type-id='f9b06939' size-in-bits='16' id='cf114704'>
+ <subrange length='2' type-id='7ff19f0f' id='52efc4ef'/>
+ </array-type-def>
+ <class-decl name='edid' size-in-bits='1024' is-struct='yes' visibility='default' filepath='include/drm/drm_edid.h' line='297' column='1' id='a7fa16d9'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='header' type-id='d2f7b56a' visibility='default' filepath='include/drm/drm_edid.h' line='298' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='mfg_id' type-id='cf114704' visibility='default' filepath='include/drm/drm_edid.h' line='300' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='80'>
+ <var-decl name='prod_code' type-id='cf114704' visibility='default' filepath='include/drm/drm_edid.h' line='301' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='96'>
+ <var-decl name='serial' type-id='19c2251e' visibility='default' filepath='include/drm/drm_edid.h' line='302' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='mfg_week' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='303' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='136'>
+ <var-decl name='mfg_year' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='304' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='144'>
+ <var-decl name='version' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='306' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='152'>
+ <var-decl name='revision' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='307' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='160'>
+ <var-decl name='input' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='309' column='1'/>
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+ <function-decl name='drm_helper_probe_single_connector_modes' mangled-name='drm_helper_probe_single_connector_modes' filepath='drivers/gpu/drm/drm_probe_helper.c' line='387' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_helper_probe_single_connector_modes'>
+ <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_probe_helper.c' line='387' column='1'/>
+ <parameter type-id='8f92235e' name='maxX' filepath='drivers/gpu/drm/drm_probe_helper.c' line='388' column='1'/>
+ <parameter type-id='8f92235e' name='maxY' filepath='drivers/gpu/drm/drm_probe_helper.c' line='388' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_connector_update_edid_property' mangled-name='drm_connector_update_edid_property' filepath='include/drm/drm_connector.h' line='1309' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_update_edid_property'>
+ <parameter type-id='4db02c58'/>
+ <parameter type-id='776adf76'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_add_modes_noedid' mangled-name='drm_add_modes_noedid' filepath='include/drm/drm_edid.h' line='493' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_add_modes_noedid'>
+ <parameter type-id='4db02c58'/>
+ <parameter type-id='95e97e5e'/>
+ <parameter type-id='95e97e5e'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_mode_vrefresh' mangled-name='drm_mode_vrefresh' filepath='include/drm/drm_modes.h' line='502' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_vrefresh'>
+ <parameter type-id='745b39e8'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_mode_probed_add' mangled-name='drm_mode_probed_add' filepath='include/drm/drm_modes.h' line='469' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_probed_add'>
+ <parameter type-id='4db02c58'/>
+ <parameter type-id='11e02f83'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_mode_set_crtcinfo' mangled-name='drm_mode_set_crtcinfo' filepath='include/drm/drm_modes.h' line='506' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_set_crtcinfo'>
+ <parameter type-id='11e02f83'/>
+ <parameter type-id='95e97e5e'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_kms_helper_hotplug_event' mangled-name='drm_kms_helper_hotplug_event' filepath='drivers/gpu/drm/drm_probe_helper.c' line='564' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_kms_helper_hotplug_event'>
+ <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_probe_helper.c' line='564' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_kms_helper_poll_disable' mangled-name='drm_kms_helper_poll_disable' filepath='drivers/gpu/drm/drm_probe_helper.c' line='699' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_kms_helper_poll_disable'>
+ <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_probe_helper.c' line='699' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_kms_helper_poll_init' mangled-name='drm_kms_helper_poll_init' filepath='drivers/gpu/drm/drm_probe_helper.c' line='726' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_kms_helper_poll_init'>
+ <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_probe_helper.c' line='726' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_kms_helper_poll_fini' mangled-name='drm_kms_helper_poll_fini' filepath='drivers/gpu/drm/drm_probe_helper.c' line='739' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_kms_helper_poll_fini'>
+ <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_probe_helper.c' line='739' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_helper_hpd_irq_event' mangled-name='drm_helper_hpd_irq_event' filepath='drivers/gpu/drm/drm_probe_helper.c' line='772' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_helper_hpd_irq_event'>
+ <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_probe_helper.c' line='772' column='1'/>
+ <return type-id='b50a4934'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/gpu/drm/drm_property.c' language='LANG_C89'>
+ <function-decl name='drm_property_blob_get' mangled-name='drm_property_blob_get' filepath='drivers/gpu/drm/drm_property.c' line='633' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_blob_get'>
+ <parameter type-id='c4126d52' name='blob' filepath='drivers/gpu/drm/drm_property.c' line='633' column='1'/>
+ <return type-id='c4126d52'/>
+ </function-decl>
+ <function-decl name='drm_property_lookup_blob' mangled-name='drm_property_lookup_blob' filepath='drivers/gpu/drm/drm_property.c' line='652' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_lookup_blob'>
+ <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_property.c' line='652' column='1'/>
+ <parameter type-id='8f92235e' name='id' filepath='drivers/gpu/drm/drm_property.c' line='653' column='1'/>
+ <return type-id='c4126d52'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/gpu/drm/drm_simple_kms_helper.c' language='LANG_C89'>
+ <qualified-type-def type-id='3a47d82b' const='yes' id='340461fe'/>
+ <pointer-type-def type-id='340461fe' size-in-bits='64' id='b6e600bc'/>
+ <function-decl name='drm_bridge_attach' mangled-name='drm_bridge_attach' filepath='include/drm/drm_bridge.h' line='302' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_bridge_attach'>
+ <parameter type-id='74d89ebd'/>
+ <parameter type-id='8582e5ec'/>
+ <parameter type-id='8582e5ec'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_universal_plane_init' mangled-name='drm_universal_plane_init' filepath='include/drm/drm_plane.h' line='684' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_universal_plane_init'>
+ <parameter type-id='8898134d'/>
+ <parameter type-id='a6711537'/>
+ <parameter type-id='f0981eeb'/>
+ <parameter type-id='cfd5d066'/>
+ <parameter type-id='5b2fd8e8'/>
+ <parameter type-id='f0981eeb'/>
+ <parameter type-id='b6e600bc'/>
+ <parameter type-id='5eed3c85'/>
+ <parameter type-id='80f4b756'/>
+ <parameter is-variadic='yes'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_crtc_init_with_planes' mangled-name='drm_crtc_init_with_planes' filepath='include/drm/drm_crtc.h' line='1074' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_init_with_planes'>
+ <parameter type-id='8898134d'/>
+ <parameter type-id='b64ad7cb'/>
+ <parameter type-id='a6711537'/>
+ <parameter type-id='a6711537'/>
+ <parameter type-id='7236c5c8'/>
+ <parameter type-id='80f4b756'/>
+ <parameter is-variadic='yes'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_encoder_init' mangled-name='drm_encoder_init' filepath='include/drm/drm_encoder.h' line='182' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_encoder_init'>
+ <parameter type-id='8898134d'/>
+ <parameter type-id='74d89ebd'/>
+ <parameter type-id='1701f1ac'/>
+ <parameter type-id='95e97e5e'/>
+ <parameter type-id='80f4b756'/>
+ <parameter is-variadic='yes'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_connector_attach_encoder' mangled-name='drm_connector_attach_encoder' filepath='include/drm/drm_connector.h' line='1199' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_attach_encoder'>
+ <parameter type-id='4db02c58'/>
+ <parameter type-id='74d89ebd'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/gpu/drm/drm_syncobj.c' language='LANG_C89'>
+ <function-decl name='dma_fence_add_callback' mangled-name='dma_fence_add_callback' filepath='include/linux/dma-fence.h' line='344' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_add_callback'>
+ <parameter type-id='28271da3'/>
+ <parameter type-id='a47516e5'/>
+ <parameter type-id='75d065d2'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='dma_fence_remove_callback' mangled-name='dma_fence_remove_callback' filepath='include/linux/dma-fence.h' line='347' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_remove_callback'>
+ <parameter type-id='28271da3'/>
+ <parameter type-id='a47516e5'/>
+ <return type-id='c894953d'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/gpu/drm/drm_vblank.c' language='LANG_C89'>
+ <function-decl name='drm_vblank_init' mangled-name='drm_vblank_init' filepath='drivers/gpu/drm/drm_vblank.c' line='435' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_vblank_init'>
+ <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_vblank.c' line='435' column='1'/>
+ <parameter type-id='f0981eeb' name='num_crtcs' filepath='drivers/gpu/drm/drm_vblank.c' line='435' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='drm_wait_one_vblank' mangled-name='drm_wait_one_vblank' filepath='drivers/gpu/drm/drm_vblank.c' line='1073' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_wait_one_vblank'>
+ <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_vblank.c' line='1073' column='1'/>
+ <parameter type-id='f0981eeb' name='pipe' filepath='drivers/gpu/drm/drm_vblank.c' line='1073' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_crtc_vblank_off' mangled-name='drm_crtc_vblank_off' filepath='drivers/gpu/drm/drm_vblank.c' line='1123' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_vblank_off'>
+ <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_vblank.c' line='1123' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_crtc_vblank_reset' mangled-name='drm_crtc_vblank_reset' filepath='drivers/gpu/drm/drm_vblank.c' line='1193' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_vblank_reset'>
+ <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_vblank.c' line='1193' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_crtc_vblank_on' mangled-name='drm_crtc_vblank_on' filepath='drivers/gpu/drm/drm_vblank.c' line='1256' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_vblank_on'>
+ <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_vblank.c' line='1256' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='drm_crtc_handle_vblank' mangled-name='drm_crtc_handle_vblank' filepath='drivers/gpu/drm/drm_vblank.c' line='1787' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_handle_vblank'>
+ <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_vblank.c' line='1787' column='1'/>
+ <return type-id='b50a4934'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/gpu/drm/ttm/ttm_bo.c' language='LANG_C89'>
+ <function-decl name='ttm_bo_init_mm' mangled-name='ttm_bo_init_mm' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1404' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ttm_bo_init_mm'>
+ <parameter type-id='723d4d79' name='bdev' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1404' column='1'/>
+ <parameter type-id='f0981eeb' name='type' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1404' column='1'/>
+ <parameter type-id='7359adad' name='p_size' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1405' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='ttm_bo_global_init' mangled-name='ttm_bo_global_init' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1459' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ttm_bo_global_init'>
+ <parameter type-id='99c37ebc' name='ref' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1459' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='ttm_bo_add_to_lru' mangled-name='ttm_bo_add_to_lru' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='161' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ttm_bo_add_to_lru'>
+ <parameter type-id='9d57e433' name='bo' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='161' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='ttm_bo_del_sub_from_lru' mangled-name='ttm_bo_del_sub_from_lru' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='207' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ttm_bo_del_sub_from_lru'>
+ <parameter type-id='9d57e433' name='bo' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='207' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='ttm_bo_put' mangled-name='ttm_bo_put' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='590' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ttm_bo_put'>
+ <parameter type-id='9d57e433' name='bo' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='590' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='ttm_bo_eviction_valuable' mangled-name='ttm_bo_eviction_valuable' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='668' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ttm_bo_eviction_valuable'>
+ <parameter type-id='9d57e433' name='bo' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='668' column='1'/>
+ <parameter type-id='2e6aa127' name='place' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='669' column='1'/>
+ <return type-id='b50a4934'/>
+ </function-decl>
+ <function-decl name='ttm_bo_validate' mangled-name='ttm_bo_validate' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1077' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ttm_bo_validate'>
+ <parameter type-id='9d57e433' name='bo' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1077' column='1'/>
+ <parameter type-id='1d36520e' name='placement' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1078' column='1'/>
+ <parameter type-id='7c3e509a' name='ctx' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1079' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='ttm_bo_init' mangled-name='ttm_bo_init' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1221' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ttm_bo_init'>
+ <parameter type-id='723d4d79' name='bdev' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1221' column='1'/>
+ <parameter type-id='9d57e433' name='bo' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1222' column='1'/>
+ <parameter type-id='7359adad' name='size' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1223' column='1'/>
+ <parameter type-id='db1f3944' name='type' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1224' column='1'/>
+ <parameter type-id='1d36520e' name='placement' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1225' column='1'/>
+ <parameter type-id='8f92235e' name='page_alignment' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1226' column='1'/>
+ <parameter type-id='b50a4934' name='interruptible' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1227' column='1'/>
+ <parameter type-id='b59d7dce' name='acc_size' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1228' column='1'/>
+ <parameter type-id='4adb0e6a' name='sg' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1229' column='1'/>
+ <parameter type-id='4702a659' name='resv' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1230' column='1'/>
+ <parameter type-id='7c7fffd6' name='destroy' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1231' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='ttm_bo_dma_acc_size' mangled-name='ttm_bo_dma_acc_size' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1263' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ttm_bo_dma_acc_size'>
+ <parameter type-id='723d4d79' name='bdev' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1263' column='1'/>
+ <parameter type-id='7359adad' name='bo_size' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1264' column='1'/>
+ <parameter type-id='f0981eeb' name='struct_size' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1265' column='1'/>
+ <return type-id='b59d7dce'/>
+ </function-decl>
+ <function-decl name='ttm_bo_global_release' mangled-name='ttm_bo_global_release' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1450' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ttm_bo_global_release'>
+ <parameter type-id='99c37ebc' name='ref' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1450' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='ttm_bo_device_release' mangled-name='ttm_bo_device_release' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1495' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ttm_bo_device_release'>
+ <parameter type-id='723d4d79' name='bdev' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1495' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='ttm_bo_device_init' mangled-name='ttm_bo_device_init' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1536' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ttm_bo_device_init'>
+ <parameter type-id='723d4d79' name='bdev' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1536' column='1'/>
+ <parameter type-id='567f9176' name='glob' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1537' column='1'/>
+ <parameter type-id='0975b661' name='driver' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1538' column='1'/>
+ <parameter type-id='f57039f0' name='mapping' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1539' column='1'/>
+ <parameter type-id='9c313c2d' name='file_page_offset' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1540' column='1'/>
+ <parameter type-id='b50a4934' name='need_dma32' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1541' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='ttm_bo_wait' mangled-name='ttm_bo_wait' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1616' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ttm_bo_wait'>
+ <parameter type-id='9d57e433' name='bo' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1616' column='1'/>
+ <parameter type-id='b50a4934' name='interruptible' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1617' column='1'/>
+ <parameter type-id='b50a4934' name='no_wait' filepath='drivers/gpu/drm/ttm/ttm_bo.c' line='1617' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
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+ <enumerator name='POWER_SUPPLY_PROP_CURRENT_NOW' value='17'/>
+ <enumerator name='POWER_SUPPLY_PROP_CURRENT_AVG' value='18'/>
+ <enumerator name='POWER_SUPPLY_PROP_CURRENT_BOOT' value='19'/>
+ <enumerator name='POWER_SUPPLY_PROP_POWER_NOW' value='20'/>
+ <enumerator name='POWER_SUPPLY_PROP_POWER_AVG' value='21'/>
+ <enumerator name='POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN' value='22'/>
+ <enumerator name='POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN' value='23'/>
+ <enumerator name='POWER_SUPPLY_PROP_CHARGE_FULL' value='24'/>
+ <enumerator name='POWER_SUPPLY_PROP_CHARGE_EMPTY' value='25'/>
+ <enumerator name='POWER_SUPPLY_PROP_CHARGE_NOW' value='26'/>
+ <enumerator name='POWER_SUPPLY_PROP_CHARGE_AVG' value='27'/>
+ <enumerator name='POWER_SUPPLY_PROP_CHARGE_COUNTER' value='28'/>
+ <enumerator name='POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT' value='29'/>
+ <enumerator name='POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX' value='30'/>
+ <enumerator name='POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE' value='31'/>
+ <enumerator name='POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX' value='32'/>
+ <enumerator name='POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT' value='33'/>
+ <enumerator name='POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX' value='34'/>
+ <enumerator name='POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT' value='35'/>
+ <enumerator name='POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN' value='36'/>
+ <enumerator name='POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN' value='37'/>
+ <enumerator name='POWER_SUPPLY_PROP_ENERGY_FULL' value='38'/>
+ <enumerator name='POWER_SUPPLY_PROP_ENERGY_EMPTY' value='39'/>
+ <enumerator name='POWER_SUPPLY_PROP_ENERGY_NOW' value='40'/>
+ <enumerator name='POWER_SUPPLY_PROP_ENERGY_AVG' value='41'/>
+ <enumerator name='POWER_SUPPLY_PROP_CAPACITY' value='42'/>
+ <enumerator name='POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN' value='43'/>
+ <enumerator name='POWER_SUPPLY_PROP_CAPACITY_ALERT_MAX' value='44'/>
+ <enumerator name='POWER_SUPPLY_PROP_CAPACITY_LEVEL' value='45'/>
+ <enumerator name='POWER_SUPPLY_PROP_TEMP' value='46'/>
+ <enumerator name='POWER_SUPPLY_PROP_TEMP_MAX' value='47'/>
+ <enumerator name='POWER_SUPPLY_PROP_TEMP_MIN' value='48'/>
+ <enumerator name='POWER_SUPPLY_PROP_TEMP_ALERT_MIN' value='49'/>
+ <enumerator name='POWER_SUPPLY_PROP_TEMP_ALERT_MAX' value='50'/>
+ <enumerator name='POWER_SUPPLY_PROP_TEMP_AMBIENT' value='51'/>
+ <enumerator name='POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MIN' value='52'/>
+ <enumerator name='POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MAX' value='53'/>
+ <enumerator name='POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW' value='54'/>
+ <enumerator name='POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG' value='55'/>
+ <enumerator name='POWER_SUPPLY_PROP_TIME_TO_FULL_NOW' value='56'/>
+ <enumerator name='POWER_SUPPLY_PROP_TIME_TO_FULL_AVG' value='57'/>
+ <enumerator name='POWER_SUPPLY_PROP_TYPE' value='58'/>
+ <enumerator name='POWER_SUPPLY_PROP_USB_TYPE' value='59'/>
+ <enumerator name='POWER_SUPPLY_PROP_SCOPE' value='60'/>
+ <enumerator name='POWER_SUPPLY_PROP_PRECHARGE_CURRENT' value='61'/>
+ <enumerator name='POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT' value='62'/>
+ <enumerator name='POWER_SUPPLY_PROP_CALIBRATE' value='63'/>
+ <enumerator name='POWER_SUPPLY_PROP_USB_HC' value='64'/>
+ <enumerator name='POWER_SUPPLY_PROP_USB_OTG' value='65'/>
+ <enumerator name='POWER_SUPPLY_PROP_CHARGE_ENABLED' value='66'/>
+ <enumerator name='POWER_SUPPLY_PROP_SET_SHIP_MODE' value='67'/>
+ <enumerator name='POWER_SUPPLY_PROP_REAL_TYPE' value='68'/>
+ <enumerator name='POWER_SUPPLY_PROP_CHARGE_NOW_RAW' value='69'/>
+ <enumerator name='POWER_SUPPLY_PROP_CHARGE_NOW_ERROR' value='70'/>
+ <enumerator name='POWER_SUPPLY_PROP_CAPACITY_RAW' value='71'/>
+ <enumerator name='POWER_SUPPLY_PROP_BATTERY_CHARGING_ENABLED' value='72'/>
+ <enumerator name='POWER_SUPPLY_PROP_CHARGING_ENABLED' value='73'/>
+ <enumerator name='POWER_SUPPLY_PROP_STEP_CHARGING_ENABLED' value='74'/>
+ <enumerator name='POWER_SUPPLY_PROP_STEP_CHARGING_STEP' value='75'/>
+ <enumerator name='POWER_SUPPLY_PROP_PIN_ENABLED' value='76'/>
+ <enumerator name='POWER_SUPPLY_PROP_INPUT_SUSPEND' value='77'/>
+ <enumerator name='POWER_SUPPLY_PROP_INPUT_VOLTAGE_REGULATION' value='78'/>
+ <enumerator name='POWER_SUPPLY_PROP_INPUT_CURRENT_MAX' value='79'/>
+ <enumerator name='POWER_SUPPLY_PROP_INPUT_CURRENT_TRIM' value='80'/>
+ <enumerator name='POWER_SUPPLY_PROP_INPUT_CURRENT_SETTLED' value='81'/>
+ <enumerator name='POWER_SUPPLY_PROP_INPUT_VOLTAGE_SETTLED' value='82'/>
+ <enumerator name='POWER_SUPPLY_PROP_VCHG_LOOP_DBC_BYPASS' value='83'/>
+ <enumerator name='POWER_SUPPLY_PROP_CHARGE_COUNTER_SHADOW' value='84'/>
+ <enumerator name='POWER_SUPPLY_PROP_HI_POWER' value='85'/>
+ <enumerator name='POWER_SUPPLY_PROP_LOW_POWER' value='86'/>
+ <enumerator name='POWER_SUPPLY_PROP_COOL_TEMP' value='87'/>
+ <enumerator name='POWER_SUPPLY_PROP_WARM_TEMP' value='88'/>
+ <enumerator name='POWER_SUPPLY_PROP_COLD_TEMP' value='89'/>
+ <enumerator name='POWER_SUPPLY_PROP_HOT_TEMP' value='90'/>
+ <enumerator name='POWER_SUPPLY_PROP_SYSTEM_TEMP_LEVEL' value='91'/>
+ <enumerator name='POWER_SUPPLY_PROP_RESISTANCE' value='92'/>
+ <enumerator name='POWER_SUPPLY_PROP_RESISTANCE_CAPACITIVE' value='93'/>
+ <enumerator name='POWER_SUPPLY_PROP_RESISTANCE_ID' value='94'/>
+ <enumerator name='POWER_SUPPLY_PROP_RESISTANCE_NOW' value='95'/>
+ <enumerator name='POWER_SUPPLY_PROP_FLASH_CURRENT_MAX' value='96'/>
+ <enumerator name='POWER_SUPPLY_PROP_UPDATE_NOW' value='97'/>
+ <enumerator name='POWER_SUPPLY_PROP_ESR_COUNT' value='98'/>
+ <enumerator name='POWER_SUPPLY_PROP_BUCK_FREQ' value='99'/>
+ <enumerator name='POWER_SUPPLY_PROP_BOOST_CURRENT' value='100'/>
+ <enumerator name='POWER_SUPPLY_PROP_SAFETY_TIMER_ENABLE' value='101'/>
+ <enumerator name='POWER_SUPPLY_PROP_CHARGE_DONE' value='102'/>
+ <enumerator name='POWER_SUPPLY_PROP_FLASH_ACTIVE' value='103'/>
+ <enumerator name='POWER_SUPPLY_PROP_FLASH_TRIGGER' value='104'/>
+ <enumerator name='POWER_SUPPLY_PROP_FORCE_TLIM' value='105'/>
+ <enumerator name='POWER_SUPPLY_PROP_DP_DM' value='106'/>
+ <enumerator name='POWER_SUPPLY_PROP_INPUT_CURRENT_LIMITED' value='107'/>
+ <enumerator name='POWER_SUPPLY_PROP_INPUT_CURRENT_NOW' value='108'/>
+ <enumerator name='POWER_SUPPLY_PROP_CHARGE_QNOVO_ENABLE' value='109'/>
+ <enumerator name='POWER_SUPPLY_PROP_CURRENT_QNOVO' value='110'/>
+ <enumerator name='POWER_SUPPLY_PROP_VOLTAGE_QNOVO' value='111'/>
+ <enumerator name='POWER_SUPPLY_PROP_RERUN_AICL' value='112'/>
+ <enumerator name='POWER_SUPPLY_PROP_CYCLE_COUNT_ID' value='113'/>
+ <enumerator name='POWER_SUPPLY_PROP_SAFETY_TIMER_EXPIRED' value='114'/>
+ <enumerator name='POWER_SUPPLY_PROP_RESTRICTED_CHARGING' value='115'/>
+ <enumerator name='POWER_SUPPLY_PROP_CURRENT_CAPABILITY' value='116'/>
+ <enumerator name='POWER_SUPPLY_PROP_TYPEC_MODE' value='117'/>
+ <enumerator name='POWER_SUPPLY_PROP_TYPEC_CC_ORIENTATION' value='118'/>
+ <enumerator name='POWER_SUPPLY_PROP_TYPEC_POWER_ROLE' value='119'/>
+ <enumerator name='POWER_SUPPLY_PROP_TYPEC_SRC_RP' value='120'/>
+ <enumerator name='POWER_SUPPLY_PROP_PD_ALLOWED' value='121'/>
+ <enumerator name='POWER_SUPPLY_PROP_PD_ACTIVE' value='122'/>
+ <enumerator name='POWER_SUPPLY_PROP_PD_IN_HARD_RESET' value='123'/>
+ <enumerator name='POWER_SUPPLY_PROP_PD_CURRENT_MAX' value='124'/>
+ <enumerator name='POWER_SUPPLY_PROP_PD_USB_SUSPEND_SUPPORTED' value='125'/>
+ <enumerator name='POWER_SUPPLY_PROP_CHARGER_TEMP' value='126'/>
+ <enumerator name='POWER_SUPPLY_PROP_CHARGER_TEMP_MAX' value='127'/>
+ <enumerator name='POWER_SUPPLY_PROP_PARALLEL_DISABLE' value='128'/>
+ <enumerator name='POWER_SUPPLY_PROP_PE_START' value='129'/>
+ <enumerator name='POWER_SUPPLY_PROP_SOC_REPORTING_READY' value='130'/>
+ <enumerator name='POWER_SUPPLY_PROP_DEBUG_BATTERY' value='131'/>
+ <enumerator name='POWER_SUPPLY_PROP_FCC_DELTA' value='132'/>
+ <enumerator name='POWER_SUPPLY_PROP_ICL_REDUCTION' value='133'/>
+ <enumerator name='POWER_SUPPLY_PROP_PARALLEL_MODE' value='134'/>
+ <enumerator name='POWER_SUPPLY_PROP_DIE_HEALTH' value='135'/>
+ <enumerator name='POWER_SUPPLY_PROP_CONNECTOR_HEALTH' value='136'/>
+ <enumerator name='POWER_SUPPLY_PROP_CTM_CURRENT_MAX' value='137'/>
+ <enumerator name='POWER_SUPPLY_PROP_HW_CURRENT_MAX' value='138'/>
+ <enumerator name='POWER_SUPPLY_PROP_PR_SWAP' value='139'/>
+ <enumerator name='POWER_SUPPLY_PROP_CC_STEP' value='140'/>
+ <enumerator name='POWER_SUPPLY_PROP_CC_STEP_SEL' value='141'/>
+ <enumerator name='POWER_SUPPLY_PROP_SW_JEITA_ENABLED' value='142'/>
+ <enumerator name='POWER_SUPPLY_PROP_PD_VOLTAGE_MAX' value='143'/>
+ <enumerator name='POWER_SUPPLY_PROP_PD_VOLTAGE_MIN' value='144'/>
+ <enumerator name='POWER_SUPPLY_PROP_SDP_CURRENT_MAX' value='145'/>
+ <enumerator name='POWER_SUPPLY_PROP_CONNECTOR_TYPE' value='146'/>
+ <enumerator name='POWER_SUPPLY_PROP_PARALLEL_BATFET_MODE' value='147'/>
+ <enumerator name='POWER_SUPPLY_PROP_PARALLEL_FCC_MAX' value='148'/>
+ <enumerator name='POWER_SUPPLY_PROP_MIN_ICL' value='149'/>
+ <enumerator name='POWER_SUPPLY_PROP_MOISTURE_DETECTED' value='150'/>
+ <enumerator name='POWER_SUPPLY_PROP_BATT_PROFILE_VERSION' value='151'/>
+ <enumerator name='POWER_SUPPLY_PROP_BATT_FULL_CURRENT' value='152'/>
+ <enumerator name='POWER_SUPPLY_PROP_RECHARGE_SOC' value='153'/>
+ <enumerator name='POWER_SUPPLY_PROP_HVDCP_OPTI_ALLOWED' value='154'/>
+ <enumerator name='POWER_SUPPLY_PROP_SMB_EN_MODE' value='155'/>
+ <enumerator name='POWER_SUPPLY_PROP_SMB_EN_REASON' value='156'/>
+ <enumerator name='POWER_SUPPLY_PROP_ESR_ACTUAL' value='157'/>
+ <enumerator name='POWER_SUPPLY_PROP_ESR_NOMINAL' value='158'/>
+ <enumerator name='POWER_SUPPLY_PROP_SOH' value='159'/>
+ <enumerator name='POWER_SUPPLY_PROP_CLEAR_SOH' value='160'/>
+ <enumerator name='POWER_SUPPLY_PROP_FORCE_RECHARGE' value='161'/>
+ <enumerator name='POWER_SUPPLY_PROP_FCC_STEPPER_ENABLE' value='162'/>
+ <enumerator name='POWER_SUPPLY_PROP_TOGGLE_STAT' value='163'/>
+ <enumerator name='POWER_SUPPLY_PROP_MAIN_FCC_MAX' value='164'/>
+ <enumerator name='POWER_SUPPLY_PROP_FG_RESET' value='165'/>
+ <enumerator name='POWER_SUPPLY_PROP_QC_OPTI_DISABLE' value='166'/>
+ <enumerator name='POWER_SUPPLY_PROP_CC_SOC' value='167'/>
+ <enumerator name='POWER_SUPPLY_PROP_BATT_AGE_LEVEL' value='168'/>
+ <enumerator name='POWER_SUPPLY_PROP_SCALE_MODE_EN' value='169'/>
+ <enumerator name='POWER_SUPPLY_PROP_VOLTAGE_VPH' value='170'/>
+ <enumerator name='POWER_SUPPLY_PROP_CHIP_VERSION' value='171'/>
+ <enumerator name='POWER_SUPPLY_PROP_THERM_ICL_LIMIT' value='172'/>
+ <enumerator name='POWER_SUPPLY_PROP_DC_RESET' value='173'/>
+ <enumerator name='POWER_SUPPLY_PROP_VOLTAGE_MAX_LIMIT' value='174'/>
+ <enumerator name='POWER_SUPPLY_PROP_REAL_CAPACITY' value='175'/>
+ <enumerator name='POWER_SUPPLY_PROP_FORCE_MAIN_ICL' value='176'/>
+ <enumerator name='POWER_SUPPLY_PROP_FORCE_MAIN_FCC' value='177'/>
+ <enumerator name='POWER_SUPPLY_PROP_COMP_CLAMP_LEVEL' value='178'/>
+ <enumerator name='POWER_SUPPLY_PROP_ADAPTER_CC_MODE' value='179'/>
+ <enumerator name='POWER_SUPPLY_PROP_SKIN_HEALTH' value='180'/>
+ <enumerator name='POWER_SUPPLY_PROP_CHARGE_DISABLE' value='181'/>
+ <enumerator name='POWER_SUPPLY_PROP_ADAPTER_DETAILS' value='182'/>
+ <enumerator name='POWER_SUPPLY_PROP_DEAD_BATTERY' value='183'/>
+ <enumerator name='POWER_SUPPLY_PROP_VOLTAGE_FIFO' value='184'/>
+ <enumerator name='POWER_SUPPLY_PROP_CC_UAH' value='185'/>
+ <enumerator name='POWER_SUPPLY_PROP_OPERATING_FREQ' value='186'/>
+ <enumerator name='POWER_SUPPLY_PROP_AICL_DELAY' value='187'/>
+ <enumerator name='POWER_SUPPLY_PROP_AICL_ICL' value='188'/>
+ <enumerator name='POWER_SUPPLY_PROP_RTX' value='189'/>
+ <enumerator name='POWER_SUPPLY_PROP_CUTOFF_SOC' value='190'/>
+ <enumerator name='POWER_SUPPLY_PROP_SYS_SOC' value='191'/>
+ <enumerator name='POWER_SUPPLY_PROP_BATT_SOC' value='192'/>
+ <enumerator name='POWER_SUPPLY_PROP_BATT_CE_CTRL' value='193'/>
+ <enumerator name='POWER_SUPPLY_PROP_CHARGE_FULL_ESTIMATE' value='194'/>
+ <enumerator name='POWER_SUPPLY_PROP_RESISTANCE_AVG' value='195'/>
+ <enumerator name='POWER_SUPPLY_PROP_RES_FILTER_COUNT' value='196'/>
+ <enumerator name='POWER_SUPPLY_PROP_AICL_DONE' value='197'/>
+ <enumerator name='POWER_SUPPLY_PROP_VOLTAGE_STEP' value='198'/>
+ <enumerator name='POWER_SUPPLY_PROP_OTG_FASTROLESWAP' value='199'/>
+ <enumerator name='POWER_SUPPLY_PROP_APSD_RERUN' value='200'/>
+ <enumerator name='POWER_SUPPLY_PROP_APSD_TIMEOUT' value='201'/>
+ <enumerator name='POWER_SUPPLY_PROP_CP_STATUS1' value='202'/>
+ <enumerator name='POWER_SUPPLY_PROP_CP_STATUS2' value='203'/>
+ <enumerator name='POWER_SUPPLY_PROP_CP_ENABLE' value='204'/>
+ <enumerator name='POWER_SUPPLY_PROP_CP_SWITCHER_EN' value='205'/>
+ <enumerator name='POWER_SUPPLY_PROP_CP_DIE_TEMP' value='206'/>
+ <enumerator name='POWER_SUPPLY_PROP_CP_ISNS' value='207'/>
+ <enumerator name='POWER_SUPPLY_PROP_CP_ISNS_SLAVE' value='208'/>
+ <enumerator name='POWER_SUPPLY_PROP_CP_TOGGLE_SWITCHER' value='209'/>
+ <enumerator name='POWER_SUPPLY_PROP_CP_IRQ_STATUS' value='210'/>
+ <enumerator name='POWER_SUPPLY_PROP_CP_ILIM' value='211'/>
+ <enumerator name='POWER_SUPPLY_PROP_IRQ_STATUS' value='212'/>
+ <enumerator name='POWER_SUPPLY_PROP_PARALLEL_OUTPUT_MODE' value='213'/>
+ <enumerator name='POWER_SUPPLY_PROP_ALIGNMENT' value='214'/>
+ <enumerator name='POWER_SUPPLY_PROP_MOISTURE_DETECTION_ENABLE' value='215'/>
+ <enumerator name='POWER_SUPPLY_PROP_CC_TOGGLE_ENABLE' value='216'/>
+ <enumerator name='POWER_SUPPLY_PROP_FG_TYPE' value='217'/>
+ <enumerator name='POWER_SUPPLY_PROP_CHARGER_STATUS' value='218'/>
+ <enumerator name='POWER_SUPPLY_PROP_CHARGE_COUNTER_EXT' value='219'/>
+ <enumerator name='POWER_SUPPLY_PROP_CHARGE_CHARGER_STATE' value='220'/>
+ <enumerator name='POWER_SUPPLY_PROP_MODEL_NAME' value='221'/>
+ <enumerator name='POWER_SUPPLY_PROP_PTMC_ID' value='222'/>
+ <enumerator name='POWER_SUPPLY_PROP_MANUFACTURER' value='223'/>
+ <enumerator name='POWER_SUPPLY_PROP_BATTERY_TYPE' value='224'/>
+ <enumerator name='POWER_SUPPLY_PROP_CYCLE_COUNTS' value='225'/>
+ <enumerator name='POWER_SUPPLY_PROP_SERIAL_NUMBER' value='226'/>
+ </enum-decl>
+ <typedef-decl name='int64_t' type-id='9b7c55ef' filepath='include/linux/types.h' line='114' column='1' id='9da381c4'/>
+ <class-decl name='power_supply_config' size-in-bits='320' is-struct='yes' visibility='default' filepath='include/linux/power_supply.h' line='504' column='1' id='098cab97'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='of_node' type-id='9a537bbe' visibility='default' filepath='include/linux/power_supply.h' line='505' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='fwnode' type-id='4a935625' visibility='default' filepath='include/linux/power_supply.h' line='506' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='drv_data' type-id='eaa32e2f' visibility='default' filepath='include/linux/power_supply.h' line='509' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='supplied_to' type-id='9b23c9ad' visibility='default' filepath='include/linux/power_supply.h' line='511' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='num_supplicants' type-id='b59d7dce' visibility='default' filepath='include/linux/power_supply.h' line='512' column='1'/>
+ </data-member>
+ </class-decl>
+ <qualified-type-def type-id='098cab97' const='yes' id='e45577b8'/>
+ <pointer-type-def type-id='e45577b8' size-in-bits='64' id='048b3ad6'/>
+ <qualified-type-def type-id='6d39b2d0' const='yes' id='79a9ff6f'/>
+ <pointer-type-def type-id='79a9ff6f' size-in-bits='64' id='cb9cd99f'/>
+ <qualified-type-def type-id='08942f16' const='yes' id='2cd7c576'/>
+ <pointer-type-def type-id='2cd7c576' size-in-bits='64' id='f3abafd4'/>
+ <pointer-type-def type-id='50e956a4' size-in-bits='64' id='4079d8fe'/>
+ <pointer-type-def type-id='6daa74bb' size-in-bits='64' id='7c0fed0f'/>
+ <pointer-type-def type-id='40d98f1e' size-in-bits='64' id='c793cb80'/>
+ <pointer-type-def type-id='98749268' size-in-bits='64' id='c0c93c9e'/>
+ <pointer-type-def type-id='5f78aa17' size-in-bits='64' id='c0d0f1ae'/>
+ <pointer-type-def type-id='08942f16' size-in-bits='64' id='2e53d20f'/>
+ <pointer-type-def type-id='1f7f0095' size-in-bits='64' id='f26ad218'/>
+ <pointer-type-def type-id='ffbf2003' size-in-bits='64' id='a89a6c47'/>
+ <function-decl name='device_remove_file' mangled-name='device_remove_file' filepath='include/linux/device.h' line='649' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_remove_file'>
+ <parameter type-id='fa0b179b'/>
+ <parameter type-id='de63df21'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='devm_of_led_classdev_register' mangled-name='devm_of_led_classdev_register' filepath='include/linux/leds.h' line='131' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_of_led_classdev_register'>
+ <parameter type-id='fa0b179b'/>
+ <parameter type-id='9a537bbe'/>
+ <parameter type-id='bd1c8eb6'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='devm_kasprintf' mangled-name='devm_kasprintf' filepath='include/linux/device.h' line='708' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_kasprintf'>
+ <parameter type-id='fa0b179b'/>
+ <parameter type-id='f0981eeb'/>
+ <parameter type-id='80f4b756'/>
+ <parameter is-variadic='yes'/>
+ <return type-id='26a90f95'/>
+ </function-decl>
+ <function-decl name='devm_power_supply_register' mangled-name='devm_power_supply_register' filepath='include/linux/power_supply.h' line='687' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_power_supply_register'>
+ <parameter type-id='fa0b179b'/>
+ <parameter type-id='cb9cd99f'/>
+ <parameter type-id='048b3ad6'/>
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+ <enumerator name='USB_INTERFACE_BOUND' value='2'/>
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+ <parameter type-id='fa0b179b'/>
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+ <parameter type-id='fa0b179b'/>
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+ <function-decl name='irq_get_irq_data' mangled-name='irq_get_irq_data' filepath='include/linux/irq.h' line='770' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_get_irq_data'>
+ <parameter type-id='f0981eeb'/>
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+ <function-decl name='irq_domain_set_hwirq_and_chip' mangled-name='irq_domain_set_hwirq_and_chip' filepath='include/linux/irqdomain.h' line='480' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_domain_set_hwirq_and_chip'>
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+ <abi-instr address-size='64' path='drivers/irqchip/qcom-pdc.c' language='LANG_C89'>
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+ </function-decl>
+ <function-decl name='irq_domain_alloc_irqs_parent' mangled-name='irq_domain_alloc_irqs_parent' filepath='include/linux/irqdomain.h' line='495' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_domain_alloc_irqs_parent'>
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+ </function-decl>
+ <function-decl name='irq_chip_set_type_parent' mangled-name='irq_chip_set_type_parent' filepath='include/linux/irq.h' line='652' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_set_type_parent'>
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+ <function-decl name='xdp_rxq_info_reg_mem_model' mangled-name='xdp_rxq_info_reg_mem_model' filepath='include/net/xdp.h' line='136' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_rxq_info_reg_mem_model'>
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+ <function-decl name='xdp_rxq_info_unreg' mangled-name='xdp_rxq_info_unreg' filepath='include/net/xdp.h' line='133' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_rxq_info_unreg'>
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+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='xdp_return_frame' mangled-name='xdp_return_frame' filepath='include/net/xdp.h' line='127' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_return_frame'>
+ <parameter type-id='cb1c5129'/>
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+ </function-decl>
+ <function-decl name='napi_disable' mangled-name='napi_disable' filepath='include/linux/netdevice.h' line='513' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='napi_disable'>
+ <parameter type-id='c50361c5'/>
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+ </function-decl>
+ <function-decl name='napi_hash_del' mangled-name='napi_hash_del' filepath='include/linux/netdevice.h' line='504' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='napi_hash_del'>
+ <parameter type-id='c50361c5'/>
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+ </function-decl>
+ <function-decl name='synchronize_net' mangled-name='synchronize_net' filepath='include/linux/netdevice.h' line='2672' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='synchronize_net'>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='netif_napi_del' mangled-name='netif_napi_del' filepath='include/linux/netdevice.h' line='2279' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_napi_del'>
+ <parameter type-id='c50361c5'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='napi_complete_done' mangled-name='napi_complete_done' filepath='include/linux/netdevice.h' line='478' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='napi_complete_done'>
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+ </function-decl>
+ <function-decl name='napi_gro_receive' mangled-name='napi_gro_receive' filepath='include/linux/netdevice.h' line='3623' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='napi_gro_receive'>
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+ <function-decl name='xdp_do_flush_map' mangled-name='xdp_do_flush_map' filepath='include/linux/filter.h' line='875' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_do_flush_map'>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='arch_bpf_jit_check_func' mangled-name='arch_bpf_jit_check_func' filepath='include/linux/filter.h' line='521' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='arch_bpf_jit_check_func'>
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+ </function-decl>
+ <function-decl name='build_skb' mangled-name='build_skb' filepath='include/linux/skbuff.h' line='991' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='build_skb'>
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+ <function-decl name='skb_put' mangled-name='skb_put' filepath='include/linux/skbuff.h' line='2084' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_put'>
+ <parameter type-id='0fbf3cfd'/>
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+ <function-decl name='eth_type_trans' mangled-name='eth_type_trans' filepath='include/linux/etherdevice.h' line='36' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eth_type_trans'>
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+ </function-decl>
+ <function-decl name='xdp_do_redirect' mangled-name='xdp_do_redirect' filepath='include/linux/filter.h' line='872' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_do_redirect'>
+ <parameter type-id='68a2d05b'/>
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+ <function-decl name='bpf_warn_invalid_xdp_action' mangled-name='bpf_warn_invalid_xdp_action' filepath='include/linux/filter.h' line='877' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_warn_invalid_xdp_action'>
+ <parameter type-id='f0981eeb'/>
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+ <function-decl name='skb_copy_bits' mangled-name='skb_copy_bits' filepath='include/linux/skbuff.h' line='3362' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_copy_bits'>
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+ <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='393' column='1'/>
+ <parameter type-id='f9b06939' name='pos' filepath='drivers/pci/pci.c' line='393' column='1'/>
+ <parameter type-id='95e97e5e' name='cap' filepath='drivers/pci/pci.c' line='393' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='pci_enable_device' mangled-name='pci_enable_device' filepath='drivers/pci/pci.c' line='1660' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_enable_device'>
+ <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='1660' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='pcim_enable_device' mangled-name='pcim_enable_device' filepath='drivers/pci/pci.c' line='1733' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pcim_enable_device'>
+ <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='1733' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='pm_runtime_barrier' mangled-name='pm_runtime_barrier' filepath='include/linux/pm_runtime.h' line='45' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_runtime_barrier'>
+ <parameter type-id='fa0b179b'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='device_set_wakeup_capable' mangled-name='device_set_wakeup_capable' filepath='include/linux/pm_wakeup.h' line='110' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_set_wakeup_capable'>
+ <parameter type-id='fa0b179b'/>
+ <parameter type-id='c894953d'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='pci_request_acs' mangled-name='pci_request_acs' filepath='drivers/pci/pci.c' line='3060' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_request_acs'>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='pci_request_region' mangled-name='pci_request_region' filepath='drivers/pci/pci.c' line='3648' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_request_region'>
+ <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='3648' column='1'/>
+ <parameter type-id='95e97e5e' name='bar' filepath='drivers/pci/pci.c' line='3648' column='1'/>
+ <parameter type-id='80f4b756' name='res_name' filepath='drivers/pci/pci.c' line='3648' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='pci_request_selected_regions' mangled-name='pci_request_selected_regions' filepath='drivers/pci/pci.c' line='3723' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_request_selected_regions'>
+ <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='3723' column='1'/>
+ <parameter type-id='95e97e5e' name='bars' filepath='drivers/pci/pci.c' line='3723' column='1'/>
+ <parameter type-id='80f4b756' name='res_name' filepath='drivers/pci/pci.c' line='3724' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='pci_release_regions' mangled-name='pci_release_regions' filepath='drivers/pci/pci.c' line='3747' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_release_regions'>
+ <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='3747' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='pci_request_regions' mangled-name='pci_request_regions' filepath='drivers/pci/pci.c' line='3766' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_request_regions'>
+ <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='3766' column='1'/>
+ <parameter type-id='80f4b756' name='res_name' filepath='drivers/pci/pci.c' line='3766' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='pci_set_master' mangled-name='pci_set_master' filepath='drivers/pci/pci.c' line='4089' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_set_master'>
+ <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='4089' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='pci_clear_master' mangled-name='pci_clear_master' filepath='drivers/pci/pci.c' line='4100' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_clear_master'>
+ <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='4100' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/pci/probe.c' language='LANG_C89'>
+ <class-decl name='hotplug_slot_ops' size-in-bits='704' is-struct='yes' visibility='default' filepath='include/linux/pci_hotplug.h' line='48' column='1' id='8d2c0dd2'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='owner' type-id='2730d015' visibility='default' filepath='include/linux/pci_hotplug.h' line='49' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='mod_name' type-id='80f4b756' visibility='default' filepath='include/linux/pci_hotplug.h' line='50' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='enable_slot' type-id='1617c63b' visibility='default' filepath='include/linux/pci_hotplug.h' line='51' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='disable_slot' type-id='1617c63b' visibility='default' filepath='include/linux/pci_hotplug.h' line='52' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='set_attention_status' type-id='4b81d8e7' visibility='default' filepath='include/linux/pci_hotplug.h' line='53' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='320'>
+ <var-decl name='hardware_test' type-id='b3f54aba' visibility='default' filepath='include/linux/pci_hotplug.h' line='54' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='384'>
+ <var-decl name='get_power_status' type-id='db02d786' visibility='default' filepath='include/linux/pci_hotplug.h' line='55' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='448'>
+ <var-decl name='get_attention_status' type-id='db02d786' visibility='default' filepath='include/linux/pci_hotplug.h' line='56' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='512'>
+ <var-decl name='get_latch_status' type-id='db02d786' visibility='default' filepath='include/linux/pci_hotplug.h' line='57' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='576'>
+ <var-decl name='get_adapter_status' type-id='db02d786' visibility='default' filepath='include/linux/pci_hotplug.h' line='58' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='640'>
+ <var-decl name='reset_slot' type-id='3801bb42' visibility='default' filepath='include/linux/pci_hotplug.h' line='59' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='hotplug_slot_info' size-in-bits='32' is-struct='yes' visibility='default' filepath='include/linux/pci_hotplug.h' line='71' column='1' id='df8b174a'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='power_status' type-id='f9b06939' visibility='default' filepath='include/linux/pci_hotplug.h' line='72' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='8'>
+ <var-decl name='attention_status' type-id='f9b06939' visibility='default' filepath='include/linux/pci_hotplug.h' line='73' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='16'>
+ <var-decl name='latch_status' type-id='f9b06939' visibility='default' filepath='include/linux/pci_hotplug.h' line='74' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='24'>
+ <var-decl name='adapter_status' type-id='f9b06939' visibility='default' filepath='include/linux/pci_hotplug.h' line='75' column='1'/>
+ </data-member>
+ </class-decl>
+ <pointer-type-def type-id='df8b174a' size-in-bits='64' id='c14deb08'/>
+ <pointer-type-def type-id='8d2c0dd2' size-in-bits='64' id='9e69d260'/>
+ <pointer-type-def type-id='d9435f47' size-in-bits='64' id='1617c63b'/>
+ <pointer-type-def type-id='b6b1bef0' size-in-bits='64' id='3801bb42'/>
+ <pointer-type-def type-id='9d9db488' size-in-bits='64' id='b3f54aba'/>
+ <pointer-type-def type-id='025c78c3' size-in-bits='64' id='4b81d8e7'/>
+ <pointer-type-def type-id='ad4c5814' size-in-bits='64' id='db02d786'/>
+ <function-decl name='bus_find_device' mangled-name='bus_find_device' filepath='include/linux/device.h' line='182' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bus_find_device'>
+ <parameter type-id='5e2671f8'/>
+ <parameter type-id='fa0b179b'/>
+ <parameter type-id='eaa32e2f'/>
+ <parameter type-id='92d15ae9'/>
+ <return type-id='fa0b179b'/>
+ </function-decl>
+ <function-decl name='pci_find_capability' mangled-name='pci_find_capability' filepath='include/linux/pci.h' line='985' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_find_capability'>
+ <parameter type-id='85196e3f'/>
+ <parameter type-id='95e97e5e'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='pci_find_ext_capability' mangled-name='pci_find_ext_capability' filepath='include/linux/pci.h' line='987' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_find_ext_capability'>
+ <parameter type-id='85196e3f'/>
+ <parameter type-id='95e97e5e'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='of_find_compatible_node' mangled-name='of_find_compatible_node' filepath='include/linux/of.h' line='279' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_compatible_node'>
+ <parameter type-id='9a537bbe'/>
+ <parameter type-id='80f4b756'/>
+ <parameter type-id='80f4b756'/>
+ <return type-id='9a537bbe'/>
+ </function-decl>
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+ <parameter type-id='b47b0d41'/>
+ <return type-id='95e97e5e'/>
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+ <parameter type-id='b47b0d41'/>
+ <parameter type-id='95e97e5e'/>
+ <return type-id='95e97e5e'/>
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+ <parameter type-id='b47b0d41'/>
+ <parameter type-id='19c2251e'/>
+ <return type-id='95e97e5e'/>
+ </function-type>
+ <function-type size-in-bits='64' id='025c78c3'>
+ <parameter type-id='b47b0d41'/>
+ <parameter type-id='f9b06939'/>
+ <return type-id='95e97e5e'/>
+ </function-type>
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+ <parameter type-id='b47b0d41'/>
+ <parameter type-id='8bff8096'/>
+ <return type-id='95e97e5e'/>
+ </function-type>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/pci/quirks.c' language='LANG_C89'>
+ <class-decl name='device_link' size-in-bits='960' is-struct='yes' visibility='default' filepath='include/linux/device.h' line='891' column='1' id='b52abcec'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='supplier' type-id='fa0b179b' visibility='default' filepath='include/linux/device.h' line='892' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='s_node' type-id='72f469ec' visibility='default' filepath='include/linux/device.h' line='893' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='consumer' type-id='fa0b179b' visibility='default' filepath='include/linux/device.h' line='894' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='c_node' type-id='72f469ec' visibility='default' filepath='include/linux/device.h' line='895' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='384'>
+ <var-decl name='status' type-id='3f7ac0c9' visibility='default' filepath='include/linux/device.h' line='896' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='416'>
+ <var-decl name='flags' type-id='19c2251e' visibility='default' filepath='include/linux/device.h' line='897' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='448'>
+ <var-decl name='rpm_active' type-id='64615833' visibility='default' filepath='include/linux/device.h' line='898' column='1'/>
+ </data-member>
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+ <var-decl name='kref' type-id='400fb07b' visibility='default' filepath='include/linux/device.h' line='899' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='512'>
+ <var-decl name='callback_head' type-id='e3d8ce29' visibility='default' filepath='include/linux/device.h' line='901' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='640'>
+ <var-decl name='supplier_preactivated' type-id='b50a4934' visibility='default' filepath='include/linux/device.h' line='903' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='704'>
+ <var-decl name='android_kabi_reserved1' type-id='91ce1af9' visibility='default' filepath='include/linux/device.h' line='905' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='768'>
+ <var-decl name='android_kabi_reserved2' type-id='91ce1af9' visibility='default' filepath='include/linux/device.h' line='906' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='832'>
+ <var-decl name='android_kabi_reserved3' type-id='91ce1af9' visibility='default' filepath='include/linux/device.h' line='907' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='896'>
+ <var-decl name='android_kabi_reserved4' type-id='91ce1af9' visibility='default' filepath='include/linux/device.h' line='908' column='1'/>
+ </data-member>
+ </class-decl>
+ <enum-decl name='device_link_state' filepath='include/linux/device.h' line='849' column='1' id='3f7ac0c9'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='DL_STATE_NONE' value='-1'/>
+ <enumerator name='DL_STATE_DORMANT' value='0'/>
+ <enumerator name='DL_STATE_AVAILABLE' value='1'/>
+ <enumerator name='DL_STATE_CONSUMER_PROBE' value='2'/>
+ <enumerator name='DL_STATE_ACTIVE' value='3'/>
+ <enumerator name='DL_STATE_SUPPLIER_UNBIND' value='4'/>
+ </enum-decl>
+ <pointer-type-def type-id='b52abcec' size-in-bits='64' id='7acfb3fa'/>
+ <function-decl name='device_link_add' mangled-name='device_link_add' filepath='include/linux/device.h' line='1453' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_link_add'>
+ <parameter type-id='fa0b179b'/>
+ <parameter type-id='fa0b179b'/>
+ <parameter type-id='f0981eeb'/>
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+ <abi-instr address-size='64' path='drivers/phy/phy-core.c' language='LANG_C89'>
+ <class-decl name='phy' size-in-bits='8192' is-struct='yes' visibility='default' filepath='include/linux/phy/phy.h' line='88' column='1' id='da10e34c'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='dev' type-id='66e487eb' visibility='default' filepath='include/linux/phy/phy.h' line='89' column='1'/>
+ </data-member>
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+ <var-decl name='id' type-id='95e97e5e' visibility='default' filepath='include/linux/phy/phy.h' line='90' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='7680'>
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+ </data-member>
+ <data-member access='public' layout-offset-in-bits='7744'>
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+ </data-member>
+ <data-member access='public' layout-offset-in-bits='8000'>
+ <var-decl name='init_count' type-id='95e97e5e' visibility='default' filepath='include/linux/phy/phy.h' line='93' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='8032'>
+ <var-decl name='power_count' type-id='95e97e5e' visibility='default' filepath='include/linux/phy/phy.h' line='94' column='1'/>
+ </data-member>
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+ </data-member>
+ <data-member access='public' layout-offset-in-bits='8128'>
+ <var-decl name='pwr' type-id='850c13f6' visibility='default' filepath='include/linux/phy/phy.h' line='96' column='1'/>
+ </data-member>
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+ <data-member access='public' layout-offset-in-bits='0'>
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+ </data-member>
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+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='power_on' type-id='83078c32' visibility='default' filepath='include/linux/phy/phy.h' line='59' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='power_off' type-id='83078c32' visibility='default' filepath='include/linux/phy/phy.h' line='60' column='1'/>
+ </data-member>
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+ <var-decl name='set_mode' type-id='01bb54f4' visibility='default' filepath='include/linux/phy/phy.h' line='61' column='1'/>
+ </data-member>
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+ <var-decl name='reset' type-id='83078c32' visibility='default' filepath='include/linux/phy/phy.h' line='62' column='1'/>
+ </data-member>
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+ <var-decl name='calibrate' type-id='83078c32' visibility='default' filepath='include/linux/phy/phy.h' line='63' column='1'/>
+ </data-member>
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+ <underlying-type type-id='9cac1fee'/>
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+ <enumerator name='PHY_MODE_USB_HOST_FS' value='3'/>
+ <enumerator name='PHY_MODE_USB_HOST_HS' value='4'/>
+ <enumerator name='PHY_MODE_USB_HOST_SS' value='5'/>
+ <enumerator name='PHY_MODE_USB_DEVICE' value='6'/>
+ <enumerator name='PHY_MODE_USB_DEVICE_LS' value='7'/>
+ <enumerator name='PHY_MODE_USB_DEVICE_FS' value='8'/>
+ <enumerator name='PHY_MODE_USB_DEVICE_HS' value='9'/>
+ <enumerator name='PHY_MODE_USB_DEVICE_SS' value='10'/>
+ <enumerator name='PHY_MODE_USB_OTG' value='11'/>
+ <enumerator name='PHY_MODE_SGMII' value='12'/>
+ <enumerator name='PHY_MODE_2500SGMII' value='13'/>
+ <enumerator name='PHY_MODE_10GKR' value='14'/>
+ <enumerator name='PHY_MODE_UFS_HS_A' value='15'/>
+ <enumerator name='PHY_MODE_UFS_HS_B' value='16'/>
+ </enum-decl>
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+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='bus_width' type-id='19c2251e' visibility='default' filepath='include/linux/phy/phy.h' line='72' column='1'/>
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+ <enumerator name='PIN_CONFIG_DRIVE_PUSH_PULL' value='8'/>
+ <enumerator name='PIN_CONFIG_DRIVE_STRENGTH' value='9'/>
+ <enumerator name='PIN_CONFIG_INPUT_DEBOUNCE' value='10'/>
+ <enumerator name='PIN_CONFIG_INPUT_ENABLE' value='11'/>
+ <enumerator name='PIN_CONFIG_INPUT_SCHMITT' value='12'/>
+ <enumerator name='PIN_CONFIG_INPUT_SCHMITT_ENABLE' value='13'/>
+ <enumerator name='PIN_CONFIG_LOW_POWER_MODE' value='14'/>
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+ <enumerator name='PIN_CONFIG_OUTPUT' value='16'/>
+ <enumerator name='PIN_CONFIG_POWER_SOURCE' value='17'/>
+ <enumerator name='PIN_CONFIG_SLEEP_HARDWARE_STATE' value='18'/>
+ <enumerator name='PIN_CONFIG_SLEW_RATE' value='19'/>
+ <enumerator name='PIN_CONFIG_SKEW_DELAY' value='20'/>
+ <enumerator name='PIN_CONFIG_PERSIST_STATE' value='21'/>
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+ <enumerator name='PWM_POLARITY_NORMAL' value='0'/>
+ <enumerator name='PWM_POLARITY_INVERSED' value='1'/>
+ </enum-decl>
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+ </data-member>
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+ </data-member>
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+ <enumerator name='PWM_OUTPUT_MODULATED' value='2'/>
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+ <enumerator name='USB_EVENT_ENUMERATED' value='4'/>
+ </enum-decl>
+ <class-decl name='usb_otg' size-in-bits='704' is-struct='yes' visibility='default' filepath='include/linux/usb/otg.h' line='16' column='1' id='6e3d524a'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='default_a' type-id='f9b06939' visibility='default' filepath='include/linux/usb/otg.h' line='17' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='phy' type-id='503ff1ba' visibility='default' filepath='include/linux/usb/otg.h' line='19' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='usb_phy' type-id='ca9354d1' visibility='default' filepath='include/linux/usb/otg.h' line='21' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='host' type-id='3ab7d422' visibility='default' filepath='include/linux/usb/otg.h' line='22' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='gadget' type-id='49a58c0c' visibility='default' filepath='include/linux/usb/otg.h' line='23' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='320'>
+ <var-decl name='state' type-id='4c0c8157' visibility='default' filepath='include/linux/usb/otg.h' line='25' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='384'>
+ <var-decl name='set_host' type-id='40b8ad2b' visibility='default' filepath='include/linux/usb/otg.h' line='28' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='448'>
+ <var-decl name='set_peripheral' type-id='ba1d878d' visibility='default' filepath='include/linux/usb/otg.h' line='31' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='512'>
+ <var-decl name='set_vbus' type-id='c1ee9321' visibility='default' filepath='include/linux/usb/otg.h' line='35' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='576'>
+ <var-decl name='start_srp' type-id='988d1520' visibility='default' filepath='include/linux/usb/otg.h' line='38' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='640'>
+ <var-decl name='start_hnp' type-id='988d1520' visibility='default' filepath='include/linux/usb/otg.h' line='41' column='1'/>
+ </data-member>
+ </class-decl>
+ <enum-decl name='usb_otg_state' filepath='include/linux/usb/phy.h' line='56' column='1' id='4c0c8157'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='OTG_STATE_UNDEFINED' value='0'/>
+ <enumerator name='OTG_STATE_B_IDLE' value='1'/>
+ <enumerator name='OTG_STATE_B_SRP_INIT' value='2'/>
+ <enumerator name='OTG_STATE_B_PERIPHERAL' value='3'/>
+ <enumerator name='OTG_STATE_B_SUSPEND' value='4'/>
+ <enumerator name='OTG_STATE_B_WAIT_ACON' value='5'/>
+ <enumerator name='OTG_STATE_B_HOST' value='6'/>
+ <enumerator name='OTG_STATE_A_IDLE' value='7'/>
+ <enumerator name='OTG_STATE_A_WAIT_VRISE' value='8'/>
+ <enumerator name='OTG_STATE_A_WAIT_BCON' value='9'/>
+ <enumerator name='OTG_STATE_A_HOST' value='10'/>
+ <enumerator name='OTG_STATE_A_SUSPEND' value='11'/>
+ <enumerator name='OTG_STATE_A_PERIPHERAL' value='12'/>
+ <enumerator name='OTG_STATE_A_WAIT_VFALL' value='13'/>
+ <enumerator name='OTG_STATE_A_VBUS_ERR' value='14'/>
+ </enum-decl>
+ <class-decl name='usb_phy_io_ops' size-in-bits='128' is-struct='yes' visibility='default' filepath='include/linux/usb/phy.h' line='86' column='1' id='b6b55329'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='read' type-id='90c0e85c' visibility='default' filepath='include/linux/usb/phy.h' line='87' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='write' type-id='a52d0b9b' visibility='default' filepath='include/linux/usb/phy.h' line='88' column='1'/>
+ </data-member>
+ </class-decl>
+ <enum-decl name='usb_charger_type' filepath='include/uapi/linux/usb/charger.h' line='16' column='1' id='eba182c8'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='UNKNOWN_TYPE' value='0'/>
+ <enumerator name='SDP_TYPE' value='1'/>
+ <enumerator name='DCP_TYPE' value='2'/>
+ <enumerator name='CDP_TYPE' value='3'/>
+ <enumerator name='ACA_TYPE' value='4'/>
+ </enum-decl>
+ <enum-decl name='usb_charger_state' filepath='include/uapi/linux/usb/charger.h' line='25' column='1' id='6d659af5'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='USB_CHARGER_DEFAULT' value='0'/>
+ <enumerator name='USB_CHARGER_PRESENT' value='1'/>
+ <enumerator name='USB_CHARGER_ABSENT' value='2'/>
+ </enum-decl>
+ <class-decl name='usb_charger_current' size-in-bits='256' is-struct='yes' visibility='default' filepath='include/linux/usb/phy.h' line='91' column='1' id='c1a2a792'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='sdp_min' type-id='f0981eeb' visibility='default' filepath='include/linux/usb/phy.h' line='92' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='32'>
+ <var-decl name='sdp_max' type-id='f0981eeb' visibility='default' filepath='include/linux/usb/phy.h' line='93' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='dcp_min' type-id='f0981eeb' visibility='default' filepath='include/linux/usb/phy.h' line='94' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='96'>
+ <var-decl name='dcp_max' type-id='f0981eeb' visibility='default' filepath='include/linux/usb/phy.h' line='95' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='cdp_min' type-id='f0981eeb' visibility='default' filepath='include/linux/usb/phy.h' line='96' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='160'>
+ <var-decl name='cdp_max' type-id='f0981eeb' visibility='default' filepath='include/linux/usb/phy.h' line='97' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='aca_min' type-id='f0981eeb' visibility='default' filepath='include/linux/usb/phy.h' line='98' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='224'>
+ <var-decl name='aca_max' type-id='f0981eeb' visibility='default' filepath='include/linux/usb/phy.h' line='99' column='1'/>
+ </data-member>
+ </class-decl>
+ <pointer-type-def type-id='b7022237' size-in-bits='64' id='c4884d33'/>
+ <pointer-type-def type-id='87a2d33c' size-in-bits='64' id='c0d6fada'/>
+ <pointer-type-def type-id='db1d8e86' size-in-bits='64' id='988d1520'/>
+ <pointer-type-def type-id='d2460aa5' size-in-bits='64' id='c1ee9321'/>
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+ <pointer-type-def type-id='9502627f' size-in-bits='64' id='2f4077f3'/>
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+ <pointer-type-def type-id='5c3855b6' size-in-bits='64' id='523228f0'/>
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+ <pointer-type-def type-id='f65a797a' size-in-bits='64' id='6cd1df94'/>
+ <function-decl name='__usb_create_hcd' mangled-name='__usb_create_hcd' filepath='drivers/usb/core/hcd.c' line='2584' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__usb_create_hcd'>
+ <parameter type-id='5aa12c86' name='driver' filepath='drivers/usb/core/hcd.c' line='2584' column='1'/>
+ <parameter type-id='fa0b179b' name='sysdev' filepath='drivers/usb/core/hcd.c' line='2585' column='1'/>
+ <parameter type-id='fa0b179b' name='dev' filepath='drivers/usb/core/hcd.c' line='2585' column='1'/>
+ <parameter type-id='80f4b756' name='bus_name' filepath='drivers/usb/core/hcd.c' line='2585' column='1'/>
+ <parameter type-id='fc4f83c1' name='primary_hcd' filepath='drivers/usb/core/hcd.c' line='2586' column='1'/>
+ <return type-id='fc4f83c1'/>
+ </function-decl>
+ <function-decl name='usb_hcd_poll_rh_status' mangled-name='usb_hcd_poll_rh_status' filepath='drivers/usb/core/hcd.c' line='749' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_hcd_poll_rh_status'>
+ <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/core/hcd.c' line='749' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='usb_hcd_giveback_urb' mangled-name='usb_hcd_giveback_urb' filepath='drivers/usb/core/hcd.c' line='1826' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_hcd_giveback_urb'>
+ <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/core/hcd.c' line='1826' column='1'/>
+ <parameter type-id='ab85b8f2' name='urb' filepath='drivers/usb/core/hcd.c' line='1826' column='1'/>
+ <parameter type-id='95e97e5e' name='status' filepath='drivers/usb/core/hcd.c' line='1826' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='usb_hcd_unlink_urb_from_ep' mangled-name='usb_hcd_unlink_urb_from_ep' filepath='drivers/usb/core/hcd.c' line='1332' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_hcd_unlink_urb_from_ep'>
+ <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/core/hcd.c' line='1332' column='1'/>
+ <parameter type-id='ab85b8f2' name='urb' filepath='drivers/usb/core/hcd.c' line='1332' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='usb_hcd_link_urb_to_ep' mangled-name='usb_hcd_link_urb_to_ep' filepath='drivers/usb/core/hcd.c' line='1241' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_hcd_link_urb_to_ep'>
+ <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/core/hcd.c' line='1241' column='1'/>
+ <parameter type-id='ab85b8f2' name='urb' filepath='drivers/usb/core/hcd.c' line='1241' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='usb_hcd_check_unlink_urb' mangled-name='usb_hcd_check_unlink_urb' filepath='drivers/usb/core/hcd.c' line='1299' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_hcd_check_unlink_urb'>
+ <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/core/hcd.c' line='1299' column='1'/>
+ <parameter type-id='ab85b8f2' name='urb' filepath='drivers/usb/core/hcd.c' line='1299' column='1'/>
+ <parameter type-id='95e97e5e' name='status' filepath='drivers/usb/core/hcd.c' line='1300' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='usb_hcd_resume_root_hub' mangled-name='usb_hcd_resume_root_hub' filepath='drivers/usb/core/hcd.c' line='2441' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_hcd_resume_root_hub'>
+ <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/core/hcd.c' line='2441' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='usb_create_hcd' mangled-name='usb_create_hcd' filepath='drivers/usb/core/hcd.c' line='2682' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_create_hcd'>
+ <parameter type-id='5aa12c86' name='driver' filepath='drivers/usb/core/hcd.c' line='2682' column='1'/>
+ <parameter type-id='fa0b179b' name='dev' filepath='drivers/usb/core/hcd.c' line='2683' column='1'/>
+ <parameter type-id='80f4b756' name='bus_name' filepath='drivers/usb/core/hcd.c' line='2683' column='1'/>
+ <return type-id='fc4f83c1'/>
+ </function-decl>
+ <function-decl name='usb_hcd_platform_shutdown' mangled-name='usb_hcd_platform_shutdown' filepath='drivers/usb/core/hcd.c' line='3081' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_hcd_platform_shutdown'>
+ <parameter type-id='db362995' name='dev' filepath='drivers/usb/core/hcd.c' line='3081' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
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+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='kref' type-id='400fb07b' visibility='default' filepath='include/linux/usb.h' line='1595' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='hcpriv' type-id='eaa32e2f' visibility='default' filepath='include/linux/usb.h' line='1596' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='use_count' type-id='49178f86' visibility='default' filepath='include/linux/usb.h' line='1597' column='1'/>
+ </data-member>
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+ <var-decl name='reject' type-id='49178f86' visibility='default' filepath='include/linux/usb.h' line='1598' column='1'/>
+ </data-member>
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+ <var-decl name='unlinked' type-id='95e97e5e' visibility='default' filepath='include/linux/usb.h' line='1599' column='1'/>
+ </data-member>
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+ <var-decl name='urb_list' type-id='72f469ec' visibility='default' filepath='include/linux/usb.h' line='1602' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='384'>
+ <var-decl name='anchor_list' type-id='72f469ec' visibility='default' filepath='include/linux/usb.h' line='1604' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='512'>
+ <var-decl name='anchor' type-id='bd300bf3' visibility='default' filepath='include/linux/usb.h' line='1605' column='1'/>
+ </data-member>
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+ <var-decl name='dev' type-id='25e60cb2' visibility='default' filepath='include/linux/usb.h' line='1606' column='1'/>
+ </data-member>
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+ </data-member>
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+ <var-decl name='pipe' type-id='f0981eeb' visibility='default' filepath='include/linux/usb.h' line='1608' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='736'>
+ <var-decl name='stream_id' type-id='f0981eeb' visibility='default' filepath='include/linux/usb.h' line='1609' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='768'>
+ <var-decl name='status' type-id='95e97e5e' visibility='default' filepath='include/linux/usb.h' line='1610' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='800'>
+ <var-decl name='transfer_flags' type-id='f0981eeb' visibility='default' filepath='include/linux/usb.h' line='1611' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='832'>
+ <var-decl name='transfer_buffer' type-id='eaa32e2f' visibility='default' filepath='include/linux/usb.h' line='1612' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='896'>
+ <var-decl name='transfer_dma' type-id='cf29c9b3' visibility='default' filepath='include/linux/usb.h' line='1613' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='960'>
+ <var-decl name='sg' type-id='bf3ef905' visibility='default' filepath='include/linux/usb.h' line='1614' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1024'>
+ <var-decl name='num_mapped_sgs' type-id='95e97e5e' visibility='default' filepath='include/linux/usb.h' line='1615' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1056'>
+ <var-decl name='num_sgs' type-id='95e97e5e' visibility='default' filepath='include/linux/usb.h' line='1616' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1088'>
+ <var-decl name='transfer_buffer_length' type-id='19c2251e' visibility='default' filepath='include/linux/usb.h' line='1617' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1120'>
+ <var-decl name='actual_length' type-id='19c2251e' visibility='default' filepath='include/linux/usb.h' line='1618' column='1'/>
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+ </data-member>
+ <data-member access='public' layout-offset-in-bits='640'>
+ <var-decl name='fifo_flush' type-id='b1c1788a' visibility='default' filepath='include/linux/usb/gadget.h' line='198' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='704'>
+ <var-decl name='gsi_ep_op' type-id='046c2e17' visibility='default' filepath='include/linux/usb/gadget.h' line='199' column='1'/>
+ </data-member>
+ </class-decl>
+ <pointer-type-def type-id='c70cf626' size-in-bits='64' id='54a734c8'/>
+ <pointer-type-def type-id='d6bdcb4d' size-in-bits='64' id='a915fb99'/>
+ <pointer-type-def type-id='72e0b98d' size-in-bits='64' id='99f649a9'/>
+ <pointer-type-def type-id='c112c396' size-in-bits='64' id='4426dbe0'/>
+ <pointer-type-def type-id='5f81edee' size-in-bits='64' id='807f0070'/>
+ <pointer-type-def type-id='23420063' size-in-bits='64' id='487818e7'/>
+ <pointer-type-def type-id='f1c2900a' size-in-bits='64' id='bbe8d894'/>
+ <pointer-type-def type-id='6b6a0103' size-in-bits='64' id='046c2e17'/>
+ <pointer-type-def type-id='cd4cfe6f' size-in-bits='64' id='37593c93'/>
+ <pointer-type-def type-id='e72900f8' size-in-bits='64' id='b1c1788a'/>
+ <pointer-type-def type-id='192c003a' size-in-bits='64' id='2dfafd2c'/>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/usb/core/hub.c' language='LANG_C89'>
+ <function-decl name='usb_speed_string' mangled-name='usb_speed_string' filepath='include/linux/usb/ch9.h' line='45' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_speed_string'>
+ <parameter type-id='4e532009'/>
+ <return type-id='80f4b756'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/usb/core/notify.c' language='LANG_C89'>
+ <function-decl name='usb_register_notify' mangled-name='usb_register_notify' filepath='drivers/usb/core/notify.c' line='30' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_register_notify'>
+ <parameter type-id='d504f73d' name='nb' filepath='drivers/usb/core/notify.c' line='30' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='usb_unregister_notify' mangled-name='usb_unregister_notify' filepath='drivers/usb/core/notify.c' line='43' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_unregister_notify'>
+ <parameter type-id='d504f73d' name='nb' filepath='drivers/usb/core/notify.c' line='43' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='usb_register_atomic_notify' mangled-name='usb_register_atomic_notify' filepath='drivers/usb/core/notify.c' line='80' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_register_atomic_notify'>
+ <parameter type-id='d504f73d' name='nb' filepath='drivers/usb/core/notify.c' line='80' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='usb_unregister_atomic_notify' mangled-name='usb_unregister_atomic_notify' filepath='drivers/usb/core/notify.c' line='91' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_unregister_atomic_notify'>
+ <parameter type-id='d504f73d' name='nb' filepath='drivers/usb/core/notify.c' line='91' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/usb/core/usb.c' language='LANG_C89'>
+ <qualified-type-def type-id='39b596d4' const='yes' id='0e085d99'/>
+ <pointer-type-def type-id='0e085d99' size-in-bits='64' id='ca2b80c9'/>
+ <function-decl name='usb_disabled' mangled-name='usb_disabled' filepath='drivers/usb/core/usb.c' line='61' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_disabled'>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='usb_ifnum_to_if' mangled-name='usb_ifnum_to_if' filepath='drivers/usb/core/usb.c' line='274' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ifnum_to_if'>
+ <parameter type-id='ca2b80c9' name='dev' filepath='drivers/usb/core/usb.c' line='274' column='1'/>
+ <parameter type-id='f0981eeb' name='ifnum' filepath='drivers/usb/core/usb.c' line='275' column='1'/>
+ <return type-id='8bf48c31'/>
+ </function-decl>
+ <function-decl name='usb_get_dev' mangled-name='usb_get_dev' filepath='drivers/usb/core/usb.c' line='688' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_get_dev'>
+ <parameter type-id='25e60cb2' name='dev' filepath='drivers/usb/core/usb.c' line='688' column='1'/>
+ <return type-id='25e60cb2'/>
+ </function-decl>
+ <function-decl name='usb_put_dev' mangled-name='usb_put_dev' filepath='drivers/usb/core/usb.c' line='703' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_put_dev'>
+ <parameter type-id='25e60cb2' name='dev' filepath='drivers/usb/core/usb.c' line='703' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='usb_sec_event_ring_setup' mangled-name='usb_sec_event_ring_setup' filepath='drivers/usb/core/usb.c' line='828' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_sec_event_ring_setup'>
+ <parameter type-id='25e60cb2' name='dev' filepath='drivers/usb/core/usb.c' line='828' column='1'/>
+ <parameter type-id='f0981eeb' name='intr_num' filepath='drivers/usb/core/usb.c' line='829' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='usb_sec_event_ring_cleanup' mangled-name='usb_sec_event_ring_cleanup' filepath='drivers/usb/core/usb.c' line='838' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_sec_event_ring_cleanup'>
+ <parameter type-id='25e60cb2' name='dev' filepath='drivers/usb/core/usb.c' line='838' column='1'/>
+ <parameter type-id='f0981eeb' name='intr_num' filepath='drivers/usb/core/usb.c' line='839' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='usb_get_sec_event_ring_phys_addr' mangled-name='usb_get_sec_event_ring_phys_addr' filepath='drivers/usb/core/usb.c' line='846' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_get_sec_event_ring_phys_addr'>
+ <parameter type-id='25e60cb2' name='dev' filepath='drivers/usb/core/usb.c' line='846' column='1'/>
+ <parameter type-id='f0981eeb' name='intr_num' filepath='drivers/usb/core/usb.c' line='847' column='1'/>
+ <parameter type-id='e835b5d8' name='dma' filepath='drivers/usb/core/usb.c' line='847' column='1'/>
+ <return type-id='2522883d'/>
+ </function-decl>
+ <function-decl name='usb_get_xfer_ring_phys_addr' mangled-name='usb_get_xfer_ring_phys_addr' filepath='drivers/usb/core/usb.c' line='856' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_get_xfer_ring_phys_addr'>
+ <parameter type-id='25e60cb2' name='dev' filepath='drivers/usb/core/usb.c' line='856' column='1'/>
+ <parameter type-id='15adb516' name='ep' filepath='drivers/usb/core/usb.c' line='857' column='1'/>
+ <parameter type-id='e835b5d8' name='dma' filepath='drivers/usb/core/usb.c' line='857' column='1'/>
+ <return type-id='2522883d'/>
+ </function-decl>
+ <function-decl name='usb_get_controller_id' mangled-name='usb_get_controller_id' filepath='drivers/usb/core/usb.c' line='870' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_get_controller_id'>
+ <parameter type-id='25e60cb2' name='dev' filepath='drivers/usb/core/usb.c' line='870' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='usb_stop_endpoint' mangled-name='usb_stop_endpoint' filepath='drivers/usb/core/usb.c' line='879' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_stop_endpoint'>
+ <parameter type-id='25e60cb2' name='dev' filepath='drivers/usb/core/usb.c' line='879' column='1'/>
+ <parameter type-id='15adb516' name='ep' filepath='drivers/usb/core/usb.c' line='879' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/usb/gadget/composite.c' language='LANG_C89'>
+ <function-decl name='usb_func_wakeup' mangled-name='usb_func_wakeup' filepath='drivers/usb/gadget/composite.c' line='512' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_func_wakeup'>
+ <parameter type-id='e5411c2c' name='func' filepath='drivers/usb/gadget/composite.c' line='512' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='usb_func_ep_queue' mangled-name='usb_func_ep_queue' filepath='drivers/usb/gadget/composite.c' line='553' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_func_ep_queue'>
+ <parameter type-id='e5411c2c' name='func' filepath='drivers/usb/gadget/composite.c' line='553' column='1'/>
+ <parameter type-id='63a08bf7' name='ep' filepath='drivers/usb/gadget/composite.c' line='553' column='1'/>
+ <parameter type-id='1a494567' name='req' filepath='drivers/usb/gadget/composite.c' line='554' column='1'/>
+ <parameter type-id='3eb7c31c' name='gfp_flags' filepath='drivers/usb/gadget/composite.c' line='554' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='usb_string_id' mangled-name='usb_string_id' filepath='drivers/usb/gadget/composite.c' line='1342' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_string_id'>
+ <parameter type-id='2a895c01' name='cdev' filepath='drivers/usb/gadget/composite.c' line='1342' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='usb_gadget_set_state' mangled-name='usb_gadget_set_state' filepath='include/linux/usb/gadget.h' line='929' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_gadget_set_state'>
+ <parameter type-id='49a58c0c'/>
+ <parameter type-id='901a91cb'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='usb_gadget_vbus_draw' mangled-name='usb_gadget_vbus_draw' filepath='include/linux/usb/gadget.h' line='644' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_gadget_vbus_draw'>
+ <parameter type-id='49a58c0c'/>
+ <parameter type-id='f0981eeb'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='usb_ep_alloc_request' mangled-name='usb_ep_alloc_request' filepath='include/linux/usb/gadget.h' line='312' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ep_alloc_request'>
+ <parameter type-id='63a08bf7'/>
+ <parameter type-id='f0981eeb'/>
+ <return type-id='1a494567'/>
+ </function-decl>
+ <function-decl name='usb_ep_dequeue' mangled-name='usb_ep_dequeue' filepath='include/linux/usb/gadget.h' line='315' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ep_dequeue'>
+ <parameter type-id='63a08bf7'/>
+ <parameter type-id='1a494567'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='usb_composite_setup_continue' mangled-name='usb_composite_setup_continue' filepath='drivers/usb/gadget/composite.c' line='2555' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_composite_setup_continue'>
+ <parameter type-id='2a895c01' name='cdev' filepath='drivers/usb/gadget/composite.c' line='2555' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <pointer-type-def type-id='e9546509' size-in-bits='64' id='2a895c01'/>
+ <pointer-type-def type-id='d6a54726' size-in-bits='64' id='e5411c2c'/>
+ <pointer-type-def type-id='43806adf' size-in-bits='64' id='1a494567'/>
+ <class-decl name='usb_composite_dev' size-in-bits='1216' is-struct='yes' visibility='default' filepath='include/linux/usb/composite.h' line='493' column='1' id='e9546509'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='gadget' type-id='49a58c0c' visibility='default' filepath='include/linux/usb/composite.h' line='494' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='req' type-id='1a494567' visibility='default' filepath='include/linux/usb/composite.h' line='495' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='os_desc_req' type-id='1a494567' visibility='default' filepath='include/linux/usb/composite.h' line='496' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='config' type-id='ee27b7c6' visibility='default' filepath='include/linux/usb/composite.h' line='498' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='qw_sign' type-id='497ff6fb' visibility='default' filepath='include/linux/usb/composite.h' line='501' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='368'>
+ <var-decl name='b_vendor_code' type-id='f9b06939' visibility='default' filepath='include/linux/usb/composite.h' line='502' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='384'>
+ <var-decl name='os_desc_config' type-id='ee27b7c6' visibility='default' filepath='include/linux/usb/composite.h' line='503' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='use_os_string' type-id='f0981eeb' visibility='default' filepath='include/linux/usb/composite.h' line='504' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1'>
+ <var-decl name='suspended' type-id='f0981eeb' visibility='default' filepath='include/linux/usb/composite.h' line='508' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='456'>
+ <var-decl name='desc' type-id='582de67c' visibility='default' filepath='include/linux/usb/composite.h' line='509' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='640'>
+ <var-decl name='configs' type-id='72f469ec' visibility='default' filepath='include/linux/usb/composite.h' line='510' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='768'>
+ <var-decl name='gstrings' type-id='72f469ec' visibility='default' filepath='include/linux/usb/composite.h' line='511' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='896'>
+ <var-decl name='driver' type-id='c64e62ba' visibility='default' filepath='include/linux/usb/composite.h' line='512' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='960'>
+ <var-decl name='next_string_id' type-id='f9b06939' visibility='default' filepath='include/linux/usb/composite.h' line='513' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1024'>
+ <var-decl name='def_manufacturer' type-id='26a90f95' visibility='default' filepath='include/linux/usb/composite.h' line='514' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1088'>
+ <var-decl name='deactivations' type-id='f0981eeb' visibility='default' filepath='include/linux/usb/composite.h' line='519' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1120'>
+ <var-decl name='delayed_status' type-id='95e97e5e' visibility='default' filepath='include/linux/usb/composite.h' line='524' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1152'>
+ <var-decl name='lock' type-id='fb4018a0' visibility='default' filepath='include/linux/usb/composite.h' line='527' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='setup_pending' type-id='f0981eeb' visibility='default' filepath='include/linux/usb/composite.h' line='530' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1'>
+ <var-decl name='os_desc_pending' type-id='f0981eeb' visibility='default' filepath='include/linux/usb/composite.h' line='531' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='usb_function' size-in-bits='1856' is-struct='yes' visibility='default' filepath='include/linux/usb/composite.h' line='199' column='1' id='d6a54726'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='name' type-id='80f4b756' visibility='default' filepath='include/linux/usb/composite.h' line='200' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='intf_id' type-id='95e97e5e' visibility='default' filepath='include/linux/usb/composite.h' line='201' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='strings' type-id='fa0eba8f' visibility='default' filepath='include/linux/usb/composite.h' line='202' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='fs_descriptors' type-id='f363a725' visibility='default' filepath='include/linux/usb/composite.h' line='203' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='hs_descriptors' type-id='f363a725' visibility='default' filepath='include/linux/usb/composite.h' line='204' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='320'>
+ <var-decl name='ss_descriptors' type-id='f363a725' visibility='default' filepath='include/linux/usb/composite.h' line='205' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='384'>
+ <var-decl name='ssp_descriptors' type-id='f363a725' visibility='default' filepath='include/linux/usb/composite.h' line='206' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='448'>
+ <var-decl name='config' type-id='ee27b7c6' visibility='default' filepath='include/linux/usb/composite.h' line='208' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='512'>
+ <var-decl name='os_desc_table' type-id='fed2517b' visibility='default' filepath='include/linux/usb/composite.h' line='210' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='576'>
+ <var-decl name='os_desc_n' type-id='f0981eeb' visibility='default' filepath='include/linux/usb/composite.h' line='211' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='640'>
+ <var-decl name='bind' type-id='3b615603' visibility='default' filepath='include/linux/usb/composite.h' line='220' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='704'>
+ <var-decl name='unbind' type-id='d44ba07c' visibility='default' filepath='include/linux/usb/composite.h' line='222' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='768'>
+ <var-decl name='free_func' type-id='0da78fa5' visibility='default' filepath='include/linux/usb/composite.h' line='224' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='832'>
+ <var-decl name='mod' type-id='2730d015' visibility='default' filepath='include/linux/usb/composite.h' line='225' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='896'>
+ <var-decl name='set_alt' type-id='addd4a1a' visibility='default' filepath='include/linux/usb/composite.h' line='228' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='960'>
+ <var-decl name='get_alt' type-id='01481038' visibility='default' filepath='include/linux/usb/composite.h' line='230' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1024'>
+ <var-decl name='disable' type-id='0da78fa5' visibility='default' filepath='include/linux/usb/composite.h' line='232' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1088'>
+ <var-decl name='setup' type-id='b9adeaf4' visibility='default' filepath='include/linux/usb/composite.h' line='233' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1152'>
+ <var-decl name='req_match' type-id='dc59a00f' visibility='default' filepath='include/linux/usb/composite.h' line='235' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1216'>
+ <var-decl name='suspend' type-id='0da78fa5' visibility='default' filepath='include/linux/usb/composite.h' line='238' column='1'/>
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+ <parameter type-id='f666bcc1'/>
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+ <function-decl name='usb_free_all_descriptors' mangled-name='usb_free_all_descriptors' filepath='include/linux/usb/gadget.h' line='888' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_free_all_descriptors'>
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+ <function-decl name='usb_ep_free_request' mangled-name='usb_ep_free_request' filepath='include/linux/usb/gadget.h' line='313' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ep_free_request'>
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+ <function-decl name='usb_ep_disable' mangled-name='usb_ep_disable' filepath='include/linux/usb/gadget.h' line='311' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ep_disable'>
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+ <function-decl name='config_ep_by_speed' mangled-name='config_ep_by_speed' filepath='include/linux/usb/composite.h' line='270' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='config_ep_by_speed'>
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+ <function-decl name='usb_put_function_instance' mangled-name='usb_put_function_instance' filepath='include/linux/usb/composite.h' line='616' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_put_function_instance'>
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+ </function-decl>
+ <function-decl name='usb_function_register' mangled-name='usb_function_register' filepath='include/linux/usb/composite.h' line='615' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_function_register'>
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+ <parameter type-id='4e532009'/>
+ <return type-id='48b5725f'/>
+ </function-type>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/usb/gadget/udc/core.c' language='LANG_C89'>
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+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='buf_base_addr' type-id='eaa32e2f' visibility='default' filepath='include/linux/usb/gadget.h' line='142' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='dma' type-id='cf29c9b3' visibility='default' filepath='include/linux/usb/gadget.h' line='143' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='num_bufs' type-id='b59d7dce' visibility='default' filepath='include/linux/usb/gadget.h' line='144' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='buf_len' type-id='b59d7dce' visibility='default' filepath='include/linux/usb/gadget.h' line='145' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='db_reg_phs_addr_lsb' type-id='19c2251e' visibility='default' filepath='include/linux/usb/gadget.h' line='146' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='320'>
+ <var-decl name='mapped_db_reg_phs_addr_lsb' type-id='cf29c9b3' visibility='default' filepath='include/linux/usb/gadget.h' line='147' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='384'>
+ <var-decl name='db_reg_phs_addr_msb' type-id='19c2251e' visibility='default' filepath='include/linux/usb/gadget.h' line='148' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='448'>
+ <var-decl name='sgt_trb_xfer_ring' type-id='c59e4f4c' visibility='default' filepath='include/linux/usb/gadget.h' line='149' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='576'>
+ <var-decl name='sgt_data_buff' type-id='c59e4f4c' visibility='default' filepath='include/linux/usb/gadget.h' line='150' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='704'>
+ <var-decl name='dev' type-id='fa0b179b' visibility='default' filepath='include/linux/usb/gadget.h' line='151' column='1'/>
+ </data-member>
+ </class-decl>
+ <pointer-type-def type-id='d14b39d9' size-in-bits='64' id='0a9c98a1'/>
+ <function-decl name='usb_ep_set_maxpacket_limit' mangled-name='usb_ep_set_maxpacket_limit' filepath='drivers/usb/gadget/udc/core.c' line='62' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ep_set_maxpacket_limit'>
+ <parameter type-id='63a08bf7' name='ep' filepath='drivers/usb/gadget/udc/core.c' line='62' column='1'/>
+ <parameter type-id='f0981eeb' name='maxpacket_limit' filepath='drivers/usb/gadget/udc/core.c' line='63' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='usb_gadget_wakeup' mangled-name='usb_gadget_wakeup' filepath='drivers/usb/gadget/udc/core.c' line='491' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_gadget_wakeup'>
+ <parameter type-id='49a58c0c' name='gadget' filepath='drivers/usb/gadget/udc/core.c' line='491' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='usb_gsi_ep_op' mangled-name='usb_gsi_ep_op' filepath='drivers/usb/gadget/udc/core.c' line='515' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_gsi_ep_op'>
+ <parameter type-id='63a08bf7' name='ep' filepath='drivers/usb/gadget/udc/core.c' line='515' column='1'/>
+ <parameter type-id='0a9c98a1' name='req' filepath='drivers/usb/gadget/udc/core.c' line='516' column='1'/>
+ <parameter type-id='90ddff3f' name='op' filepath='drivers/usb/gadget/udc/core.c' line='516' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='usb_gadget_vbus_connect' mangled-name='usb_gadget_vbus_connect' filepath='drivers/usb/gadget/udc/core.c' line='614' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_gadget_vbus_connect'>
+ <parameter type-id='49a58c0c' name='gadget' filepath='drivers/usb/gadget/udc/core.c' line='614' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='usb_gadget_vbus_disconnect' mangled-name='usb_gadget_vbus_disconnect' filepath='drivers/usb/gadget/udc/core.c' line='675' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_gadget_vbus_disconnect'>
+ <parameter type-id='49a58c0c' name='gadget' filepath='drivers/usb/gadget/udc/core.c' line='675' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='usb_gadget_map_request_by_dev' mangled-name='usb_gadget_map_request_by_dev' filepath='drivers/usb/gadget/udc/core.c' line='846' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_gadget_map_request_by_dev'>
+ <parameter type-id='fa0b179b' name='dev' filepath='drivers/usb/gadget/udc/core.c' line='846' column='1'/>
+ <parameter type-id='1a494567' name='req' filepath='drivers/usb/gadget/udc/core.c' line='847' column='1'/>
+ <parameter type-id='95e97e5e' name='is_in' filepath='drivers/usb/gadget/udc/core.c' line='847' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='usb_gadget_unmap_request_by_dev' mangled-name='usb_gadget_unmap_request_by_dev' filepath='drivers/usb/gadget/udc/core.c' line='894' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_gadget_unmap_request_by_dev'>
+ <parameter type-id='fa0b179b' name='dev' filepath='drivers/usb/gadget/udc/core.c' line='894' column='1'/>
+ <parameter type-id='1a494567' name='req' filepath='drivers/usb/gadget/udc/core.c' line='895' column='1'/>
+ <parameter type-id='95e97e5e' name='is_in' filepath='drivers/usb/gadget/udc/core.c' line='895' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='usb_gadget_giveback_request' mangled-name='usb_gadget_giveback_request' filepath='drivers/usb/gadget/udc/core.c' line='931' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_gadget_giveback_request'>
+ <parameter type-id='63a08bf7' name='ep' filepath='drivers/usb/gadget/udc/core.c' line='931' column='1'/>
+ <parameter type-id='1a494567' name='req' filepath='drivers/usb/gadget/udc/core.c' line='932' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='usb_gadget_udc_reset' mangled-name='usb_gadget_udc_reset' filepath='drivers/usb/gadget/udc/core.c' line='1091' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_gadget_udc_reset'>
+ <parameter type-id='49a58c0c' name='gadget' filepath='drivers/usb/gadget/udc/core.c' line='1091' column='1'/>
+ <parameter type-id='9762ede1' name='driver' filepath='drivers/usb/gadget/udc/core.c' line='1092' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='usb_add_gadget_udc' mangled-name='usb_add_gadget_udc' filepath='drivers/usb/gadget/udc/core.c' line='1318' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_add_gadget_udc'>
+ <parameter type-id='fa0b179b' name='parent' filepath='drivers/usb/gadget/udc/core.c' line='1318' column='1'/>
+ <parameter type-id='49a58c0c' name='gadget' filepath='drivers/usb/gadget/udc/core.c' line='1318' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='usb_del_gadget_udc' mangled-name='usb_del_gadget_udc' filepath='drivers/usb/gadget/udc/core.c' line='1348' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_del_gadget_udc'>
+ <parameter type-id='49a58c0c' name='gadget' filepath='drivers/usb/gadget/udc/core.c' line='1348' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/usb/host/xhci-pci.c' language='LANG_C89'>
+ <array-type-def dimensions='1' type-id='2f162548' size-in-bits='32512' id='c96df45b'>
+ <subrange length='1016' type-id='7ff19f0f' id='f2832727'/>
+ </array-type-def>
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+ </array-type-def>
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+ </array-type-def>
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+ </array-type-def>
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+ </data-member>
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+ </data-member>
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+ <var-decl name='flags' type-id='f0981eeb' visibility='default' filepath='include/linux/usb/phy.h' line='105' column='1'/>
+ </data-member>
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+ <var-decl name='type' type-id='d95f4827' visibility='default' filepath='include/linux/usb/phy.h' line='107' column='1'/>
+ </data-member>
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+ <var-decl name='last_event' type-id='278dd9ca' visibility='default' filepath='include/linux/usb/phy.h' line='108' column='1'/>
+ </data-member>
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+ <var-decl name='otg' type-id='22be78e8' visibility='default' filepath='include/linux/usb/phy.h' line='110' column='1'/>
+ </data-member>
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+ </data-member>
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+ </data-member>
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+ <var-decl name='io_priv' type-id='eaa32e2f' visibility='default' filepath='include/linux/usb/phy.h' line='114' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='512'>
+ <var-decl name='edev' type-id='c0d6fada' visibility='default' filepath='include/linux/usb/phy.h' line='117' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='576'>
+ <var-decl name='id_edev' type-id='c0d6fada' visibility='default' filepath='include/linux/usb/phy.h' line='118' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='640'>
+ <var-decl name='vbus_nb' type-id='9b08f7cd' visibility='default' filepath='include/linux/usb/phy.h' line='119' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='832'>
+ <var-decl name='id_nb' type-id='9b08f7cd' visibility='default' filepath='include/linux/usb/phy.h' line='120' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1024'>
+ <var-decl name='type_nb' type-id='9b08f7cd' visibility='default' filepath='include/linux/usb/phy.h' line='121' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1216'>
+ <var-decl name='chg_type' type-id='eba182c8' visibility='default' filepath='include/linux/usb/phy.h' line='124' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1248'>
+ <var-decl name='chg_state' type-id='6d659af5' visibility='default' filepath='include/linux/usb/phy.h' line='125' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1280'>
+ <var-decl name='chg_cur' type-id='c1a2a792' visibility='default' filepath='include/linux/usb/phy.h' line='126' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1536'>
+ <var-decl name='chg_work' type-id='ef9025d0' visibility='default' filepath='include/linux/usb/phy.h' line='127' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1920'>
+ <var-decl name='notifier' type-id='dbd58f6e' visibility='default' filepath='include/linux/usb/phy.h' line='130' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='2048'>
+ <var-decl name='port_status' type-id='1dc6a898' visibility='default' filepath='include/linux/usb/phy.h' line='133' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='2064'>
+ <var-decl name='port_change' type-id='1dc6a898' visibility='default' filepath='include/linux/usb/phy.h' line='134' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='2112'>
+ <var-decl name='head' type-id='72f469ec' visibility='default' filepath='include/linux/usb/phy.h' line='137' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='2240'>
+ <var-decl name='init' type-id='dd6ccf15' visibility='default' filepath='include/linux/usb/phy.h' line='140' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='2304'>
+ <var-decl name='shutdown' type-id='6cd1df94' visibility='default' filepath='include/linux/usb/phy.h' line='141' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='2368'>
+ <var-decl name='set_vbus' type-id='fc1fbe7c' visibility='default' filepath='include/linux/usb/phy.h' line='144' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='2432'>
+ <var-decl name='set_power' type-id='2d642297' visibility='default' filepath='include/linux/usb/phy.h' line='147' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='2496'>
+ <var-decl name='set_suspend' type-id='fc1fbe7c' visibility='default' filepath='include/linux/usb/phy.h' line='151' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='2560'>
+ <var-decl name='set_wakeup' type-id='523228f0' visibility='default' filepath='include/linux/usb/phy.h' line='159' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='2624'>
+ <var-decl name='notify_connect' type-id='2f4077f3' visibility='default' filepath='include/linux/usb/phy.h' line='162' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='2688'>
+ <var-decl name='notify_disconnect' type-id='2f4077f3' visibility='default' filepath='include/linux/usb/phy.h' line='164' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='2752'>
+ <var-decl name='charger_detect' type-id='c4884d33' visibility='default' filepath='include/linux/usb/phy.h' line='171' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='2816'>
+ <var-decl name='reset' type-id='dd6ccf15' visibility='default' filepath='include/linux/usb/phy.h' line='174' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='2880'>
+ <var-decl name='drive_dp_pulse' type-id='2d642297' visibility='default' filepath='include/linux/usb/phy.h' line='175' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='usb_phy_roothub' is-struct='yes' visibility='default' is-declaration-only='yes' id='ceda742d'/>
+ <class-decl name='wusb_dev' is-struct='yes' visibility='default' is-declaration-only='yes' id='bb4afb30'/>
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+ <enumerator name='USB_SPEED_SUPER' value='5'/>
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+ <enumerator name='USB_DEVICE_REMOVABLE_UNKNOWN' value='0'/>
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+ <enumerator name='USB_DEVICE_FIXED' value='2'/>
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+ <enumerator name='USBPHY_INTERFACE_MODE_SERIAL' value='4'/>
+ <enumerator name='USBPHY_INTERFACE_MODE_HSIC' value='5'/>
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+ <var-decl name='sw' type-id='5d33005f' visibility='default' filepath='drivers/usb/typec/class.c' line='52' column='1'/>
+ </data-member>
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+ <var-decl name='mux' type-id='374b228b' visibility='default' filepath='drivers/usb/typec/class.c' line='53' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='8448'>
+ <var-decl name='cap' type-id='287e28ea' visibility='default' filepath='drivers/usb/typec/class.c' line='55' column='1'/>
+ </data-member>
+ </class-decl>
+ <enum-decl name='typec_data_role' filepath='include/linux/usb/typec.h' line='41' column='1' id='e453a0cb'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='TYPEC_DEVICE' value='0'/>
+ <enumerator name='TYPEC_HOST' value='1'/>
+ </enum-decl>
+ <enum-decl name='typec_role' filepath='include/linux/usb/typec.h' line='46' column='1' id='ad61830a'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='TYPEC_SINK' value='0'/>
+ <enumerator name='TYPEC_SOURCE' value='1'/>
+ </enum-decl>
+ <enum-decl name='typec_pwr_opmode' filepath='include/linux/usb/typec.h' line='51' column='1' id='44ea1984'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='TYPEC_PWR_MODE_USB' value='0'/>
+ <enumerator name='TYPEC_PWR_MODE_1_5A' value='1'/>
+ <enumerator name='TYPEC_PWR_MODE_3_0A' value='2'/>
+ <enumerator name='TYPEC_PWR_MODE_PD' value='3'/>
+ </enum-decl>
+ <enum-decl name='typec_port_type' filepath='include/linux/usb/typec.h' line='21' column='1' id='0a19b04e'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='TYPEC_PORT_SRC' value='0'/>
+ <enumerator name='TYPEC_PORT_SNK' value='1'/>
+ <enumerator name='TYPEC_PORT_DRP' value='2'/>
+ </enum-decl>
+ <enum-decl name='typec_orientation' filepath='include/linux/usb/typec.h' line='66' column='1' id='131b0a9c'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='TYPEC_ORIENTATION_NONE' value='0'/>
+ <enumerator name='TYPEC_ORIENTATION_NORMAL' value='1'/>
+ <enumerator name='TYPEC_ORIENTATION_REVERSE' value='2'/>
+ </enum-decl>
+ <class-decl name='typec_switch' size-in-bits='7680' is-struct='yes' visibility='default' filepath='drivers/usb/typec/bus.h' line='40' column='1' id='eca93177'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='dev' type-id='66e487eb' visibility='default' filepath='drivers/usb/typec/bus.h' line='41' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='7616'>
+ <var-decl name='set' type-id='d08a3e2d' visibility='default' filepath='drivers/usb/typec/bus.h' line='42' column='1'/>
+ </data-member>
+ </class-decl>
+ <typedef-decl name='typec_switch_set_fn_t' type-id='a16f8ee4' filepath='include/linux/usb/typec_mux.h' line='13' column='1' id='d08a3e2d'/>
+ <class-decl name='typec_mux' size-in-bits='7680' is-struct='yes' visibility='default' filepath='drivers/usb/typec/bus.h' line='45' column='1' id='20494abb'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='dev' type-id='66e487eb' visibility='default' filepath='drivers/usb/typec/bus.h' line='46' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='7616'>
+ <var-decl name='set' type-id='43788717' visibility='default' filepath='drivers/usb/typec/bus.h' line='47' column='1'/>
+ </data-member>
+ </class-decl>
+ <typedef-decl name='typec_mux_set_fn_t' type-id='2be74e8a' filepath='include/linux/usb/typec_mux.h' line='32' column='1' id='43788717'/>
+ <class-decl name='typec_capability' size-in-bits='768' is-struct='yes' visibility='default' filepath='include/linux/usb/typec.h' line='192' column='1' id='1f2b9a61'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='type' type-id='0a19b04e' visibility='default' filepath='include/linux/usb/typec.h' line='193' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='32'>
+ <var-decl name='data' type-id='89aae82e' visibility='default' filepath='include/linux/usb/typec.h' line='194' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='revision' type-id='1dc6a898' visibility='default' filepath='include/linux/usb/typec.h' line='195' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='80'>
+ <var-decl name='pd_revision' type-id='1dc6a898' visibility='default' filepath='include/linux/usb/typec.h' line='196' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='96'>
+ <var-decl name='prefer_role' type-id='95e97e5e' visibility='default' filepath='include/linux/usb/typec.h' line='197' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='accessory' type-id='ee8e0be0' visibility='default' filepath='include/linux/usb/typec.h' line='198' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='sw' type-id='5d33005f' visibility='default' filepath='include/linux/usb/typec.h' line='200' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='320'>
+ <var-decl name='mux' type-id='374b228b' visibility='default' filepath='include/linux/usb/typec.h' line='201' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='384'>
+ <var-decl name='fwnode' type-id='4a935625' visibility='default' filepath='include/linux/usb/typec.h' line='202' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='448'>
+ <var-decl name='try_role' type-id='7d6f1de3' visibility='default' filepath='include/linux/usb/typec.h' line='204' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='512'>
+ <var-decl name='dr_set' type-id='db92747a' visibility='default' filepath='include/linux/usb/typec.h' line='207' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='576'>
+ <var-decl name='pr_set' type-id='5efdc9af' visibility='default' filepath='include/linux/usb/typec.h' line='209' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='640'>
+ <var-decl name='vconn_set' type-id='5efdc9af' visibility='default' filepath='include/linux/usb/typec.h' line='211' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='704'>
+ <var-decl name='port_type_set' type-id='006b2d6b' visibility='default' filepath='include/linux/usb/typec.h' line='213' column='1'/>
+ </data-member>
+ </class-decl>
+ <enum-decl name='typec_port_data' filepath='include/linux/usb/typec.h' line='27' column='1' id='89aae82e'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='TYPEC_PORT_DFP' value='0'/>
+ <enumerator name='TYPEC_PORT_UFP' value='1'/>
+ <enumerator name='TYPEC_PORT_DRD' value='2'/>
+ </enum-decl>
+ <enum-decl name='typec_accessory' filepath='include/linux/usb/typec.h' line='58' column='1' id='357a6a78'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='TYPEC_ACCESSORY_NONE' value='0'/>
+ <enumerator name='TYPEC_ACCESSORY_AUDIO' value='1'/>
+ <enumerator name='TYPEC_ACCESSORY_DEBUG' value='2'/>
+ </enum-decl>
+ <class-decl name='typec_altmode' size-in-bits='7872' is-struct='yes' visibility='default' filepath='include/linux/usb/typec_altmode.h' line='24' column='1' id='17a13961'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='dev' type-id='66e487eb' visibility='default' filepath='include/linux/usb/typec_altmode.h' line='25' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='7616'>
+ <var-decl name='svid' type-id='1dc6a898' visibility='default' filepath='include/linux/usb/typec_altmode.h' line='26' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='7648'>
+ <var-decl name='mode' type-id='95e97e5e' visibility='default' filepath='include/linux/usb/typec_altmode.h' line='27' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='7680'>
+ <var-decl name='vdo' type-id='19c2251e' visibility='default' filepath='include/linux/usb/typec_altmode.h' line='28' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='active' type-id='f0981eeb' visibility='default' filepath='include/linux/usb/typec_altmode.h' line='29' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='7744'>
+ <var-decl name='desc' type-id='26a90f95' visibility='default' filepath='include/linux/usb/typec_altmode.h' line='31' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='7808'>
+ <var-decl name='ops' type-id='536df0d1' visibility='default' filepath='include/linux/usb/typec_altmode.h' line='32' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='typec_altmode_ops' size-in-bits='384' is-struct='yes' visibility='default' filepath='include/linux/usb/typec_altmode.h' line='57' column='1' id='62ec705a'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='enter' type-id='f9431329' visibility='default' filepath='include/linux/usb/typec_altmode.h' line='58' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='exit' type-id='f9431329' visibility='default' filepath='include/linux/usb/typec_altmode.h' line='59' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='attention' type-id='2227a3ab' visibility='default' filepath='include/linux/usb/typec_altmode.h' line='60' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='vdm' type-id='cc114ffc' visibility='default' filepath='include/linux/usb/typec_altmode.h' line='61' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='notify' type-id='822493cb' visibility='default' filepath='include/linux/usb/typec_altmode.h' line='63' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='320'>
+ <var-decl name='activate' type-id='d65efcf0' visibility='default' filepath='include/linux/usb/typec_altmode.h' line='65' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='typec_partner' size-in-bits='7936' is-struct='yes' visibility='default' filepath='drivers/usb/typec/class.c' line='30' column='1' id='7940281b'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='dev' type-id='66e487eb' visibility='default' filepath='drivers/usb/typec/class.c' line='31' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='usb_pd' type-id='f0981eeb' visibility='default' filepath='drivers/usb/typec/class.c' line='32' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='7680'>
+ <var-decl name='identity' type-id='09dbca85' visibility='default' filepath='drivers/usb/typec/class.c' line='33' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='7744'>
+ <var-decl name='accessory' type-id='357a6a78' visibility='default' filepath='drivers/usb/typec/class.c' line='34' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='7808'>
+ <var-decl name='mode_ids' type-id='46ce60fb' visibility='default' filepath='drivers/usb/typec/class.c' line='35' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='usb_pd_identity' size-in-bits='128' is-struct='yes' visibility='default' filepath='include/linux/usb/typec.h' line='84' column='1' id='57bfbe05'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='id_header' type-id='19c2251e' visibility='default' filepath='include/linux/usb/typec.h' line='85' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='32'>
+ <var-decl name='cert_stat' type-id='19c2251e' visibility='default' filepath='include/linux/usb/typec.h' line='86' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='product' type-id='19c2251e' visibility='default' filepath='include/linux/usb/typec.h' line='87' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='96'>
+ <var-decl name='product_type' type-id='19c2251e' visibility='default' filepath='include/linux/usb/typec.h' line='88' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='typec_altmode_desc' size-in-bits='96' is-struct='yes' visibility='default' filepath='include/linux/usb/typec.h' line='104' column='1' id='968d5b5b'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='svid' type-id='1dc6a898' visibility='default' filepath='include/linux/usb/typec.h' line='105' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='16'>
+ <var-decl name='mode' type-id='f9b06939' visibility='default' filepath='include/linux/usb/typec.h' line='106' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='32'>
+ <var-decl name='vdo' type-id='19c2251e' visibility='default' filepath='include/linux/usb/typec.h' line='107' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='roles' type-id='89aae82e' visibility='default' filepath='include/linux/usb/typec.h' line='109' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='typec_partner_desc' size-in-bits='128' is-struct='yes' visibility='default' filepath='include/linux/usb/typec.h' line='167' column='1' id='3ad5d94d'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='usb_pd' type-id='f0981eeb' visibility='default' filepath='include/linux/usb/typec.h' line='168' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='32'>
+ <var-decl name='accessory' type-id='357a6a78' visibility='default' filepath='include/linux/usb/typec.h' line='169' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='identity' type-id='09dbca85' visibility='default' filepath='include/linux/usb/typec.h' line='170' column='1'/>
+ </data-member>
+ </class-decl>
+ <qualified-type-def type-id='968d5b5b' const='yes' id='4cf04ec2'/>
+ <pointer-type-def type-id='4cf04ec2' size-in-bits='64' id='064c3738'/>
+ <qualified-type-def type-id='62ec705a' const='yes' id='bbe452a1'/>
+ <pointer-type-def type-id='bbe452a1' size-in-bits='64' id='536df0d1'/>
+ <qualified-type-def type-id='1f2b9a61' const='yes' id='67d8ed84'/>
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+ <pointer-type-def type-id='307c65d0' size-in-bits='64' id='db92747a'/>
+ <pointer-type-def type-id='3b3e66c7' size-in-bits='64' id='006b2d6b'/>
+ <pointer-type-def type-id='9873d92b' size-in-bits='64' id='5efdc9af'/>
+ <pointer-type-def type-id='cc5b0c17' size-in-bits='64' id='7d6f1de3'/>
+ <pointer-type-def type-id='db2d72d5' size-in-bits='64' id='f9431329'/>
+ <pointer-type-def type-id='1f31ad12' size-in-bits='64' id='cc114ffc'/>
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+ <pointer-type-def type-id='42a0ecc7' size-in-bits='64' id='822493cb'/>
+ <pointer-type-def type-id='da263080' size-in-bits='64' id='2be74e8a'/>
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+ <pointer-type-def type-id='20494abb' size-in-bits='64' id='374b228b'/>
+ <pointer-type-def type-id='7940281b' size-in-bits='64' id='33ca4bbb'/>
+ <pointer-type-def type-id='3ad5d94d' size-in-bits='64' id='a5263fbd'/>
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+ <pointer-type-def type-id='57bfbe05' size-in-bits='64' id='09dbca85'/>
+ <pointer-type-def type-id='345f1a5f' size-in-bits='64' id='2227a3ab'/>
+ <function-decl name='typec_register_port' mangled-name='typec_register_port' filepath='drivers/usb/typec/class.c' line='1543' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='typec_register_port'>
+ <parameter type-id='fa0b179b' name='parent' filepath='drivers/usb/typec/class.c' line='1543' column='1'/>
+ <parameter type-id='287e28ea' name='cap' filepath='drivers/usb/typec/class.c' line='1544' column='1'/>
+ <return type-id='b977ca56'/>
+ </function-decl>
+ <function-decl name='typec_altmode_update_active' mangled-name='typec_altmode_update_active' filepath='drivers/usb/typec/class.c' line='291' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='typec_altmode_update_active'>
+ <parameter type-id='02913b69' name='adev' filepath='drivers/usb/typec/class.c' line='291' column='1'/>
+ <parameter type-id='b50a4934' name='active' filepath='drivers/usb/typec/class.c' line='291' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='typec_unregister_altmode' mangled-name='typec_unregister_altmode' filepath='drivers/usb/typec/class.c' line='560' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='typec_unregister_altmode'>
+ <parameter type-id='02913b69' name='adev' filepath='drivers/usb/typec/class.c' line='560' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='typec_partner_set_identity' mangled-name='typec_partner_set_identity' filepath='drivers/usb/typec/class.c' line='620' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='typec_partner_set_identity'>
+ <parameter type-id='33ca4bbb' name='partner' filepath='drivers/usb/typec/class.c' line='620' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='typec_partner_register_altmode' mangled-name='typec_partner_register_altmode' filepath='drivers/usb/typec/class.c' line='643' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='typec_partner_register_altmode'>
+ <parameter type-id='33ca4bbb' name='partner' filepath='drivers/usb/typec/class.c' line='643' column='1'/>
+ <parameter type-id='064c3738' name='desc' filepath='drivers/usb/typec/class.c' line='644' column='1'/>
+ <return type-id='02913b69'/>
+ </function-decl>
+ <function-decl name='typec_register_partner' mangled-name='typec_register_partner' filepath='drivers/usb/typec/class.c' line='659' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='typec_register_partner'>
+ <parameter type-id='b977ca56' name='port' filepath='drivers/usb/typec/class.c' line='659' column='1'/>
+ <parameter type-id='a5263fbd' name='desc' filepath='drivers/usb/typec/class.c' line='660' column='1'/>
+ <return type-id='33ca4bbb'/>
+ </function-decl>
+ <function-decl name='typec_unregister_partner' mangled-name='typec_unregister_partner' filepath='drivers/usb/typec/class.c' line='704' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='typec_unregister_partner'>
+ <parameter type-id='33ca4bbb' name='partner' filepath='drivers/usb/typec/class.c' line='704' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='typec_set_data_role' mangled-name='typec_set_data_role' filepath='drivers/usb/typec/class.c' line='1315' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='typec_set_data_role'>
+ <parameter type-id='b977ca56' name='port' filepath='drivers/usb/typec/class.c' line='1315' column='1'/>
+ <parameter type-id='e453a0cb' name='role' filepath='drivers/usb/typec/class.c' line='1315' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='typec_set_pwr_role' mangled-name='typec_set_pwr_role' filepath='drivers/usb/typec/class.c' line='1333' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='typec_set_pwr_role'>
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+ <return type-id='cf29c9b3'/>
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+ <return type-id='cf29c9b3'/>
+ </function-decl>
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+ <parameter type-id='27675065'/>
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+ <parameter type-id='7359adad'/>
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+ <parameter type-id='eaa32e2f'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
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+ <parameter type-id='eaa32e2f'/>
+ <parameter type-id='95e97e5e'/>
+ <return type-id='48b5725f'/>
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+ </data-member>
+ <data-member access='public'>
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+ </data-member>
+ <data-member access='public'>
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+ <pointer-type-def type-id='f19fdb93' size-in-bits='64' id='9b58df93'/>
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+ <parameter type-id='21e53d44'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
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+ <parameter type-id='77e79a4b'/>
+ <parameter type-id='eaa32e2f'/>
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+ <parameter type-id='7e666abe'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
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+ <parameter type-id='80f4b756'/>
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+ <parameter type-id='9b58df93'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='lookup_one_len' mangled-name='lookup_one_len' filepath='include/linux/namei.h' line='85' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lookup_one_len'>
+ <parameter type-id='80f4b756'/>
+ <parameter type-id='27675065'/>
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+ <parameter type-id='27675065'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
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+ <parameter type-id='9b58df93'/>
+ <return type-id='48b5725f'/>
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+ <parameter type-id='7e666abe'/>
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+ <parameter type-id='5bfdb453'/>
+ <return type-id='48b5725f'/>
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+ <parameter type-id='27675065'/>
+ <parameter type-id='7e666abe'/>
+ <return type-id='48b5725f'/>
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+ <function-decl name='_raw_write_lock' mangled-name='_raw_write_lock' filepath='include/linux/rwlock_api_smp.h' line='19' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_write_lock'>
+ <parameter type-id='8567d8b0'/>
+ <return type-id='48b5725f'/>
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+ <parameter type-id='8567d8b0'/>
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+ <parameter type-id='26a90f95'/>
+ <parameter type-id='eaa32e2f'/>
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+ <parameter type-id='7359adad'/>
+ <parameter type-id='f0981eeb'/>
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+ </function-decl>
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+ <parameter type-id='27675065'/>
+ <return type-id='48b5725f'/>
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+ <function-decl name='_raw_read_lock' mangled-name='_raw_read_lock' filepath='include/linux/rwlock_api_smp.h' line='18' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_read_lock'>
+ <parameter type-id='8567d8b0'/>
+ <return type-id='48b5725f'/>
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+ <parameter type-id='8567d8b0'/>
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+ <parameter type-id='f0981eeb'/>
+ <return type-id='95e97e5e'/>
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+ <parameter type-id='f0981eeb'/>
+ <parameter type-id='77e79a4b'/>
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+ <parameter type-id='77e79a4b'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
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+ <parameter type-id='a77efac3'/>
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+ <parameter type-id='21e53d44'/>
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+ <parameter type-id='80f4b756'/>
+ <parameter type-id='7359adad'/>
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+ <parameter type-id='80f4b756' name='name' filepath='fs/char_dev.c' line='246' column='1'/>
+ <return type-id='95e97e5e'/>
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+ <return type-id='3e6eb939'/>
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+ <var-decl name='' type-id='2a125a28' visibility='default' filepath='include/linux/dcache.h' line='154' column='1'/>
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+ <underlying-type type-id='9cac1fee'/>
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+ <enumerator name='UTF16_LITTLE_ENDIAN' value='1'/>
+ <enumerator name='UTF16_BIG_ENDIAN' value='2'/>
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+ <function-decl name='utf16s_to_utf8s' mangled-name='utf16s_to_utf8s' filepath='include/linux/nls.h' line='59' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='utf16s_to_utf8s'>
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+ <parameter type-id='eaa32e2f'/>
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+ <parameter type-id='e0ea832a'/>
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+ <parameter type-id='e0ea832a'/>
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+ <enumerator name='CPUHP_S390_PFAULT_DEAD' value='22'/>
+ <enumerator name='CPUHP_BLK_MQ_DEAD' value='23'/>
+ <enumerator name='CPUHP_FS_BUFF_DEAD' value='24'/>
+ <enumerator name='CPUHP_PRINTK_DEAD' value='25'/>
+ <enumerator name='CPUHP_MM_MEMCQ_DEAD' value='26'/>
+ <enumerator name='CPUHP_PERCPU_CNT_DEAD' value='27'/>
+ <enumerator name='CPUHP_RADIX_DEAD' value='28'/>
+ <enumerator name='CPUHP_PAGE_ALLOC_DEAD' value='29'/>
+ <enumerator name='CPUHP_NET_DEV_DEAD' value='30'/>
+ <enumerator name='CPUHP_PCI_XGENE_DEAD' value='31'/>
+ <enumerator name='CPUHP_IOMMU_INTEL_DEAD' value='32'/>
+ <enumerator name='CPUHP_LUSTRE_CFS_DEAD' value='33'/>
+ <enumerator name='CPUHP_AP_ARM_CACHE_B15_RAC_DEAD' value='34'/>
+ <enumerator name='CPUHP_WORKQUEUE_PREP' value='35'/>
+ <enumerator name='CPUHP_POWER_NUMA_PREPARE' value='36'/>
+ <enumerator name='CPUHP_HRTIMERS_PREPARE' value='37'/>
+ <enumerator name='CPUHP_PROFILE_PREPARE' value='38'/>
+ <enumerator name='CPUHP_X2APIC_PREPARE' value='39'/>
+ <enumerator name='CPUHP_SMPCFD_PREPARE' value='40'/>
+ <enumerator name='CPUHP_RELAY_PREPARE' value='41'/>
+ <enumerator name='CPUHP_SLAB_PREPARE' value='42'/>
+ <enumerator name='CPUHP_MD_RAID5_PREPARE' value='43'/>
+ <enumerator name='CPUHP_RCUTREE_PREP' value='44'/>
+ <enumerator name='CPUHP_HYP_CORE_CTL_ISOLATION_DEAD' value='45'/>
+ <enumerator name='CPUHP_CORE_CTL_ISOLATION_DEAD' value='46'/>
+ <enumerator name='CPUHP_CPUIDLE_COUPLED_PREPARE' value='47'/>
+ <enumerator name='CPUHP_POWERPC_PMAC_PREPARE' value='48'/>
+ <enumerator name='CPUHP_POWERPC_MMU_CTX_PREPARE' value='49'/>
+ <enumerator name='CPUHP_XEN_PREPARE' value='50'/>
+ <enumerator name='CPUHP_XEN_EVTCHN_PREPARE' value='51'/>
+ <enumerator name='CPUHP_QCOM_CPUFREQ_PREPARE' value='52'/>
+ <enumerator name='CPUHP_ARM_SHMOBILE_SCU_PREPARE' value='53'/>
+ <enumerator name='CPUHP_SH_SH3X_PREPARE' value='54'/>
+ <enumerator name='CPUHP_NET_FLOW_PREPARE' value='55'/>
+ <enumerator name='CPUHP_TOPOLOGY_PREPARE' value='56'/>
+ <enumerator name='CPUHP_NET_IUCV_PREPARE' value='57'/>
+ <enumerator name='CPUHP_ARM_BL_PREPARE' value='58'/>
+ <enumerator name='CPUHP_TRACE_RB_PREPARE' value='59'/>
+ <enumerator name='CPUHP_MM_ZS_PREPARE' value='60'/>
+ <enumerator name='CPUHP_MM_ZSWP_MEM_PREPARE' value='61'/>
+ <enumerator name='CPUHP_MM_ZSWP_POOL_PREPARE' value='62'/>
+ <enumerator name='CPUHP_KVM_PPC_BOOK3S_PREPARE' value='63'/>
+ <enumerator name='CPUHP_ZCOMP_PREPARE' value='64'/>
+ <enumerator name='CPUHP_TIMERS_PREPARE' value='65'/>
+ <enumerator name='CPUHP_MIPS_SOC_PREPARE' value='66'/>
+ <enumerator name='CPUHP_BP_PREPARE_DYN' value='67'/>
+ <enumerator name='CPUHP_BP_PREPARE_DYN_END' value='87'/>
+ <enumerator name='CPUHP_BRINGUP_CPU' value='88'/>
+ <enumerator name='CPUHP_AP_IDLE_DEAD' value='89'/>
+ <enumerator name='CPUHP_AP_OFFLINE' value='90'/>
+ <enumerator name='CPUHP_AP_SCHED_STARTING' value='91'/>
+ <enumerator name='CPUHP_AP_RCUTREE_DYING' value='92'/>
+ <enumerator name='CPUHP_AP_IRQ_GIC_STARTING' value='93'/>
+ <enumerator name='CPUHP_AP_EDAC_PMU_STARTING' value='94'/>
+ <enumerator name='CPUHP_AP_IRQ_HIP04_STARTING' value='95'/>
+ <enumerator name='CPUHP_AP_IRQ_ARMADA_XP_STARTING' value='96'/>
+ <enumerator name='CPUHP_AP_IRQ_BCM2836_STARTING' value='97'/>
+ <enumerator name='CPUHP_AP_IRQ_MIPS_GIC_STARTING' value='98'/>
+ <enumerator name='CPUHP_AP_ARM_MVEBU_COHERENCY' value='99'/>
+ <enumerator name='CPUHP_AP_MICROCODE_LOADER' value='100'/>
+ <enumerator name='CPUHP_AP_PERF_X86_AMD_UNCORE_STARTING' value='101'/>
+ <enumerator name='CPUHP_AP_PERF_X86_STARTING' value='102'/>
+ <enumerator name='CPUHP_AP_PERF_X86_AMD_IBS_STARTING' value='103'/>
+ <enumerator name='CPUHP_AP_PERF_X86_CQM_STARTING' value='104'/>
+ <enumerator name='CPUHP_AP_PERF_X86_CSTATE_STARTING' value='105'/>
+ <enumerator name='CPUHP_AP_PERF_XTENSA_STARTING' value='106'/>
+ <enumerator name='CPUHP_AP_MIPS_OP_LOONGSON3_STARTING' value='107'/>
+ <enumerator name='CPUHP_AP_ARM_SDEI_STARTING' value='108'/>
+ <enumerator name='CPUHP_AP_ARM_VFP_STARTING' value='109'/>
+ <enumerator name='CPUHP_AP_ARM64_DEBUG_MONITORS_STARTING' value='110'/>
+ <enumerator name='CPUHP_AP_PERF_ARM_HW_BREAKPOINT_STARTING' value='111'/>
+ <enumerator name='CPUHP_AP_PERF_ARM_ACPI_STARTING' value='112'/>
+ <enumerator name='CPUHP_AP_PERF_ARM_STARTING' value='113'/>
+ <enumerator name='CPUHP_AP_ARM_L2X0_STARTING' value='114'/>
+ <enumerator name='CPUHP_AP_EXYNOS4_MCT_TIMER_STARTING' value='115'/>
+ <enumerator name='CPUHP_AP_ARM_ARCH_TIMER_STARTING' value='116'/>
+ <enumerator name='CPUHP_AP_ARM_GLOBAL_TIMER_STARTING' value='117'/>
+ <enumerator name='CPUHP_AP_JCORE_TIMER_STARTING' value='118'/>
+ <enumerator name='CPUHP_AP_ARM_TWD_STARTING' value='119'/>
+ <enumerator name='CPUHP_AP_QCOM_TIMER_STARTING' value='120'/>
+ <enumerator name='CPUHP_AP_QCOM_CPUFREQ_STARTING' value='121'/>
+ <enumerator name='CPUHP_AP_QCOM_SLEEP_STARTING' value='122'/>
+ <enumerator name='CPUHP_AP_ARMADA_TIMER_STARTING' value='123'/>
+ <enumerator name='CPUHP_AP_MARCO_TIMER_STARTING' value='124'/>
+ <enumerator name='CPUHP_AP_MIPS_GIC_TIMER_STARTING' value='125'/>
+ <enumerator name='CPUHP_AP_ARC_TIMER_STARTING' value='126'/>
+ <enumerator name='CPUHP_AP_RISCV_TIMER_STARTING' value='127'/>
+ <enumerator name='CPUHP_AP_KVM_STARTING' value='128'/>
+ <enumerator name='CPUHP_AP_KVM_ARM_VGIC_INIT_STARTING' value='129'/>
+ <enumerator name='CPUHP_AP_KVM_ARM_VGIC_STARTING' value='130'/>
+ <enumerator name='CPUHP_AP_KVM_ARM_TIMER_STARTING' value='131'/>
+ <enumerator name='CPUHP_AP_DUMMY_TIMER_STARTING' value='132'/>
+ <enumerator name='CPUHP_AP_ARM_XEN_STARTING' value='133'/>
+ <enumerator name='CPUHP_AP_ARM_SAVE_RESTORE_CORESIGHT4_STARTING' value='134'/>
+ <enumerator name='CPUHP_AP_ARM_MM_CORESIGHT4_STARTING' value='135'/>
+ <enumerator name='CPUHP_AP_ARM_CORESIGHT_STARTING' value='136'/>
+ <enumerator name='CPUHP_AP_ARM64_ISNDEP_STARTING' value='137'/>
+ <enumerator name='CPUHP_AP_SMPCFD_DYING' value='138'/>
+ <enumerator name='CPUHP_AP_X86_TBOOT_DYING' value='139'/>
+ <enumerator name='CPUHP_AP_ARM_CACHE_B15_RAC_DYING' value='140'/>
+ <enumerator name='CPUHP_AP_ONLINE' value='141'/>
+ <enumerator name='CPUHP_TEARDOWN_CPU' value='142'/>
+ <enumerator name='CPUHP_AP_ONLINE_IDLE' value='143'/>
+ <enumerator name='CPUHP_AP_SMPBOOT_THREADS' value='144'/>
+ <enumerator name='CPUHP_AP_X86_VDSO_VMA_ONLINE' value='145'/>
+ <enumerator name='CPUHP_AP_IRQ_AFFINITY_ONLINE' value='146'/>
+ <enumerator name='CPUHP_AP_ARM_MVEBU_SYNC_CLOCKS' value='147'/>
+ <enumerator name='CPUHP_AP_PERF_ONLINE' value='148'/>
+ <enumerator name='CPUHP_AP_PERF_X86_ONLINE' value='149'/>
+ <enumerator name='CPUHP_AP_PERF_X86_UNCORE_ONLINE' value='150'/>
+ <enumerator name='CPUHP_AP_PERF_X86_AMD_UNCORE_ONLINE' value='151'/>
+ <enumerator name='CPUHP_AP_PERF_X86_AMD_POWER_ONLINE' value='152'/>
+ <enumerator name='CPUHP_AP_PERF_X86_RAPL_ONLINE' value='153'/>
+ <enumerator name='CPUHP_AP_PERF_X86_CQM_ONLINE' value='154'/>
+ <enumerator name='CPUHP_AP_PERF_X86_CSTATE_ONLINE' value='155'/>
+ <enumerator name='CPUHP_AP_PERF_S390_CF_ONLINE' value='156'/>
+ <enumerator name='CPUHP_AP_PERF_S390_SF_ONLINE' value='157'/>
+ <enumerator name='CPUHP_AP_PERF_ARM_CCI_ONLINE' value='158'/>
+ <enumerator name='CPUHP_AP_PERF_ARM_CCN_ONLINE' value='159'/>
+ <enumerator name='CPUHP_AP_PERF_ARM_HISI_DDRC_ONLINE' value='160'/>
+ <enumerator name='CPUHP_AP_PERF_ARM_HISI_HHA_ONLINE' value='161'/>
+ <enumerator name='CPUHP_AP_PERF_ARM_HISI_L3_ONLINE' value='162'/>
+ <enumerator name='CPUHP_AP_PERF_ARM_L2X0_ONLINE' value='163'/>
+ <enumerator name='CPUHP_AP_PERF_ARM_QCOM_L2_ONLINE' value='164'/>
+ <enumerator name='CPUHP_AP_PERF_ARM_QCOM_L3_ONLINE' value='165'/>
+ <enumerator name='CPUHP_AP_PERF_POWERPC_NEST_IMC_ONLINE' value='166'/>
+ <enumerator name='CPUHP_AP_PERF_POWERPC_CORE_IMC_ONLINE' value='167'/>
+ <enumerator name='CPUHP_AP_PERF_POWERPC_THREAD_IMC_ONLINE' value='168'/>
+ <enumerator name='CPUHP_AP_WATCHDOG_ONLINE' value='169'/>
+ <enumerator name='CPUHP_AP_WORKQUEUE_ONLINE' value='170'/>
+ <enumerator name='CPUHP_AP_RCUTREE_ONLINE' value='171'/>
+ <enumerator name='CPUHP_AP_NOTIFY_PERF_ONLINE' value='172'/>
+ <enumerator name='CPUHP_AP_BASE_CACHEINFO_ONLINE' value='173'/>
+ <enumerator name='CPUHP_AP_ONLINE_DYN' value='174'/>
+ <enumerator name='CPUHP_AP_ONLINE_DYN_END' value='204'/>
+ <enumerator name='CPUHP_AP_X86_HPET_ONLINE' value='205'/>
+ <enumerator name='CPUHP_AP_X86_KVM_CLK_ONLINE' value='206'/>
+ <enumerator name='CPUHP_AP_ACTIVE' value='207'/>
+ <enumerator name='CPUHP_ONLINE' value='208'/>
+ </enum-decl>
+ <pointer-type-def type-id='708c2394' size-in-bits='64' id='282b7312'/>
+ <pointer-type-def type-id='db7d07ef' size-in-bits='64' id='f02a5e83'/>
+ <var-decl name='cpu_bit_bitmap' type-id='f959706c' mangled-name='cpu_bit_bitmap' visibility='default' filepath='kernel/cpu.c' line='2289' column='1' elf-symbol-id='cpu_bit_bitmap'/>
+ <var-decl name='__cpu_possible_mask' type-id='1354385d' mangled-name='__cpu_possible_mask' visibility='default' filepath='kernel/cpu.c' line='2307' column='1' elf-symbol-id='__cpu_possible_mask'/>
+ <var-decl name='__cpu_online_mask' type-id='1354385d' mangled-name='__cpu_online_mask' visibility='default' filepath='kernel/cpu.c' line='2311' column='1' elf-symbol-id='__cpu_online_mask'/>
+ <var-decl name='__cpu_present_mask' type-id='1354385d' mangled-name='__cpu_present_mask' visibility='default' filepath='kernel/cpu.c' line='2314' column='1' elf-symbol-id='__cpu_present_mask'/>
+ <var-decl name='__cpu_isolated_mask' type-id='1354385d' mangled-name='__cpu_isolated_mask' visibility='default' filepath='kernel/cpu.c' line='2320' column='1' elf-symbol-id='__cpu_isolated_mask'/>
+ <function-decl name='bpf_trace_run4' mangled-name='bpf_trace_run4' filepath='include/linux/trace_events.h' line='596' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run4'>
+ <parameter type-id='bdcee7ae'/>
+ <parameter type-id='3a47d82b'/>
+ <parameter type-id='3a47d82b'/>
+ <parameter type-id='3a47d82b'/>
+ <parameter type-id='3a47d82b'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='bpf_trace_run5' mangled-name='bpf_trace_run5' filepath='include/linux/trace_events.h' line='598' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run5'>
+ <parameter type-id='bdcee7ae'/>
+ <parameter type-id='3a47d82b'/>
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+ <parameter type-id='3a47d82b'/>
+ <parameter type-id='3a47d82b'/>
+ <parameter type-id='3a47d82b'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='kthread_unpark' mangled-name='kthread_unpark' filepath='include/linux/kthread.h' line='65' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_unpark'>
+ <parameter type-id='f23e2572'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='blocking_notifier_chain_register' mangled-name='blocking_notifier_chain_register' filepath='include/linux/notifier.h' line='146' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blocking_notifier_chain_register'>
+ <parameter type-id='282b7312'/>
+ <parameter type-id='d504f73d'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='__cpuhp_state_add_instance' mangled-name='__cpuhp_state_add_instance' filepath='kernel/cpu.c' line='1740' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__cpuhp_state_add_instance'>
+ <parameter type-id='245a0e38' name='state' filepath='kernel/cpu.c' line='1740' column='1'/>
+ <parameter type-id='08cbad52' name='node' filepath='kernel/cpu.c' line='1740' column='1'/>
+ <parameter type-id='b50a4934' name='invoke' filepath='kernel/cpu.c' line='1741' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='__cpuhp_setup_state' mangled-name='__cpuhp_setup_state' filepath='kernel/cpu.c' line='1828' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__cpuhp_setup_state'>
+ <parameter type-id='245a0e38' name='state' filepath='kernel/cpu.c' line='1828' column='1'/>
+ <parameter type-id='80f4b756' name='name' filepath='kernel/cpu.c' line='1829' column='1'/>
+ <parameter type-id='b50a4934' name='invoke' filepath='kernel/cpu.c' line='1829' column='1'/>
+ <parameter type-id='f02a5e83' name='startup' filepath='kernel/cpu.c' line='1830' column='1'/>
+ <parameter type-id='f02a5e83' name='teardown' filepath='kernel/cpu.c' line='1831' column='1'/>
+ <parameter type-id='b50a4934' name='multi_instance' filepath='kernel/cpu.c' line='1832' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='__cpuhp_state_remove_instance' mangled-name='__cpuhp_state_remove_instance' filepath='kernel/cpu.c' line='1844' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__cpuhp_state_remove_instance'>
+ <parameter type-id='245a0e38' name='state' filepath='kernel/cpu.c' line='1844' column='1'/>
+ <parameter type-id='08cbad52' name='node' filepath='kernel/cpu.c' line='1845' column='1'/>
+ <parameter type-id='b50a4934' name='invoke' filepath='kernel/cpu.c' line='1845' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='__cpuhp_remove_state' mangled-name='__cpuhp_remove_state' filepath='kernel/cpu.c' line='1930' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__cpuhp_remove_state'>
+ <parameter type-id='245a0e38' name='state' filepath='kernel/cpu.c' line='1930' column='1'/>
+ <parameter type-id='b50a4934' name='invoke' filepath='kernel/cpu.c' line='1930' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='kthread_park' mangled-name='kthread_park' filepath='include/linux/kthread.h' line='64' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_park'>
+ <parameter type-id='f23e2572'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
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+ <return type-id='95e97e5e'/>
+ </function-type>
+ </abi-instr>
+ <abi-instr address-size='64' path='kernel/cpu_pm.c' language='LANG_C89'>
+ <function-decl name='cpu_pm_unregister_notifier' mangled-name='cpu_pm_unregister_notifier' filepath='kernel/cpu_pm.c' line='69' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpu_pm_unregister_notifier'>
+ <parameter type-id='d504f73d' name='nb' filepath='kernel/cpu_pm.c' line='69' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='kernel/cred.c' language='LANG_C89'>
+ <function-decl name='__put_cred' mangled-name='__put_cred' filepath='kernel/cred.c' line='135' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__put_cred'>
+ <parameter type-id='10cfb911' name='cred' filepath='kernel/cred.c' line='135' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='override_creds' mangled-name='override_creds' filepath='kernel/cred.c' line='534' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='override_creds'>
+ <parameter type-id='bc33861a' name='new' filepath='kernel/cred.c' line='534' column='1'/>
+ <return type-id='bc33861a'/>
+ </function-decl>
+ <function-decl name='revert_creds' mangled-name='revert_creds' filepath='kernel/cred.c' line='575' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='revert_creds'>
+ <parameter type-id='bc33861a' name='old' filepath='kernel/cred.c' line='575' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <pointer-type-def type-id='6739dd09' size-in-bits='64' id='10cfb911'/>
+ </abi-instr>
+ <abi-instr address-size='64' path='kernel/dma/coherent.c' language='LANG_C89'>
+ <function-decl name='dma_get_device_base' mangled-name='dma_get_device_base' filepath='kernel/dma/coherent.c' line='32' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_get_device_base'>
+ <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/coherent.c' line='32' column='1'/>
+ <parameter type-id='5bfba86c' name='mem' filepath='kernel/dma/coherent.c' line='33' column='1'/>
+ <return type-id='cf29c9b3'/>
+ </function-decl>
+ <function-decl name='dma_get_size' mangled-name='dma_get_size' filepath='kernel/dma/coherent.c' line='42' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_get_size'>
+ <parameter type-id='5bfba86c' name='mem' filepath='kernel/dma/coherent.c' line='42' column='1'/>
+ <return type-id='7359adad'/>
+ </function-decl>
+ <function-decl name='memunmap' mangled-name='memunmap' filepath='include/linux/io.h' line='167' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='memunmap'>
+ <parameter type-id='eaa32e2f'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='memremap' mangled-name='memremap' filepath='include/linux/io.h' line='166' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='memremap'>
+ <parameter type-id='3a47d82b'/>
+ <parameter type-id='7359adad'/>
+ <parameter type-id='7359adad'/>
+ <return type-id='eaa32e2f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='kernel/dma/contiguous.c' language='LANG_C89'>
+ <var-decl name='dma_contiguous_default_area' type-id='6f67b38a' mangled-name='dma_contiguous_default_area' visibility='default' filepath='kernel/dma/contiguous.c' line='33' column='1' elf-symbol-id='dma_contiguous_default_area'/>
+ <function-decl name='cma_alloc' mangled-name='cma_alloc' filepath='include/linux/cma.h' line='35' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cma_alloc'>
+ <parameter type-id='6f67b38a'/>
+ <parameter type-id='7359adad'/>
+ <parameter type-id='f0981eeb'/>
+ <parameter type-id='c894953d'/>
+ <return type-id='02f11ed4'/>
+ </function-decl>
+ <function-decl name='cma_release' mangled-name='cma_release' filepath='include/linux/cma.h' line='37' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cma_release'>
+ <parameter type-id='6f67b38a'/>
+ <parameter type-id='b72f2447'/>
+ <parameter type-id='f0981eeb'/>
+ <return type-id='c894953d'/>
+ </function-decl>
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+ <qualified-type-def type-id='a25ce1be' const='yes' id='3d71d2d7'/>
+ </abi-instr>
+ <abi-instr address-size='64' path='kernel/dma/mapping.c' language='LANG_C89'>
+ <function-decl name='dmam_alloc_coherent' mangled-name='dmam_alloc_coherent' filepath='kernel/dma/mapping.c' line='60' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dmam_alloc_coherent'>
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+ </data-member>
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+ </data-member>
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+ </data-member>
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+ </data-member>
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+ </data-member>
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+ <var-decl name='pte' type-id='e8d572d7' visibility='default' filepath='include/linux/mm.h' line='376' column='1'/>
+ </data-member>
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+ </data-member>
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+ </data-member>
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+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='pte' type-id='e044eb0d' visibility='default' filepath='arch/arm64/include/asm/pgtable-types.h' line='33' column='1'/>
+ </data-member>
+ </class-decl>
+ <typedef-decl name='pmd_t' type-id='ed9a87e0' filepath='arch/arm64/include/asm/pgtable-types.h' line='38' column='1' id='9ecf9226'/>
+ <typedef-decl name='pud_t' type-id='735a5a3d' filepath='include/asm-generic/pgtable-nop4d-hack.h' line='15' column='1' id='ac9f3c7e'/>
+ <class-decl name='__anonymous_struct__8' size-in-bits='64' is-struct='yes' is-anonymous='yes' naming-typedef-id='ac9f3c7e' visibility='default' filepath='include/asm-generic/pgtable-nop4d-hack.h' line='15' column='1' id='735a5a3d'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='pgd' type-id='12aa8ce4' visibility='default' filepath='include/asm-generic/pgtable-nop4d-hack.h' line='15' column='1'/>
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+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='pmd' type-id='cb5c7c0f' visibility='default' filepath='arch/arm64/include/asm/pgtable-types.h' line='38' column='1'/>
+ </data-member>
+ </class-decl>
+ <typedef-decl name='pmdval_t' type-id='91ce1af9' filepath='arch/arm64/include/asm/pgtable-types.h' line='26' column='1' id='cb5c7c0f'/>
+ </abi-instr>
+ <abi-instr address-size='64' path='kernel/exit.c' language='LANG_C89'>
+ <function-decl name='blocking_notifier_call_chain' mangled-name='blocking_notifier_call_chain' filepath='include/linux/notifier.h' line='170' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blocking_notifier_call_chain'>
+ <parameter type-id='282b7312'/>
+ <parameter type-id='7359adad'/>
+ <parameter type-id='eaa32e2f'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='complete_and_exit' mangled-name='complete_and_exit' filepath='kernel/exit.c' line='926' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='complete_and_exit'>
+ <parameter type-id='389faaf7' name='comp' filepath='kernel/exit.c' line='926' column='1'/>
+ <parameter type-id='bd54fe1a' name='code' filepath='kernel/exit.c' line='926' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='find_get_pid' mangled-name='find_get_pid' filepath='include/linux/pid.h' line='115' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='find_get_pid'>
+ <parameter type-id='95e97e5e'/>
+ <return type-id='b94e5398'/>
+ </function-decl>
+ <function-decl name='remove_wait_queue' mangled-name='remove_wait_queue' filepath='include/linux/wait.h' line='153' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='remove_wait_queue'>
+ <parameter type-id='3f8b2ed3'/>
+ <parameter type-id='db9d03e3'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='kernel/fork.c' language='LANG_C89'>
+ <array-type-def dimensions='1' type-id='77e79a4b' size-in-bits='4096' id='d2c516bd'>
+ <subrange length='64' type-id='7ff19f0f' id='b10be967'/>
+ </array-type-def>
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+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='max_fds' type-id='f0981eeb' visibility='default' filepath='include/linux/fdtable.h' line='27' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='fd' type-id='229806b3' visibility='default' filepath='include/linux/fdtable.h' line='28' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='close_on_exec' type-id='1d2c2b85' visibility='default' filepath='include/linux/fdtable.h' line='29' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='open_fds' type-id='1d2c2b85' visibility='default' filepath='include/linux/fdtable.h' line='30' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='full_fds_bits' type-id='1d2c2b85' visibility='default' filepath='include/linux/fdtable.h' line='31' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='320'>
+ <var-decl name='rcu' type-id='e3d8ce29' visibility='default' filepath='include/linux/fdtable.h' line='32' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='robust_list' size-in-bits='64' is-struct='yes' visibility='default' filepath='include/uapi/linux/futex.h' line='58' column='1' id='2d8e2e2d'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='next' type-id='3ca5030d' visibility='default' filepath='include/uapi/linux/futex.h' line='59' column='1'/>
+ </data-member>
+ </class-decl>
+ <pointer-type-def type-id='ff35cfe1' size-in-bits='64' id='02b857a9'/>
+ <pointer-type-def type-id='77e79a4b' size-in-bits='64' id='229806b3'/>
+ <pointer-type-def type-id='2d8e2e2d' size-in-bits='64' id='3ca5030d'/>
+ <function-decl name='__put_task_struct' mangled-name='__put_task_struct' filepath='kernel/fork.c' line='687' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__put_task_struct'>
+ <parameter type-id='f23e2572' name='tsk' filepath='kernel/fork.c' line='687' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='kmem_cache_create_usercopy' mangled-name='kmem_cache_create_usercopy' filepath='include/linux/slab.h' line='145' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmem_cache_create_usercopy'>
+ <parameter type-id='80f4b756'/>
+ <parameter type-id='f0981eeb'/>
+ <parameter type-id='f0981eeb'/>
+ <parameter type-id='f0981eeb'/>
+ <parameter type-id='f0981eeb'/>
+ <parameter type-id='f0981eeb'/>
+ <parameter type-id='b7f9d8e6'/>
+ <return type-id='f3b4aca8'/>
+ </function-decl>
+ <function-decl name='mmput' mangled-name='mmput' filepath='kernel/fork.c' line='1044' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmput'>
+ <parameter type-id='df4b7819' name='mm' filepath='kernel/fork.c' line='1044' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='get_task_mm' mangled-name='get_task_mm' filepath='kernel/fork.c' line='1151' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_task_mm'>
+ <parameter type-id='f23e2572' name='task' filepath='kernel/fork.c' line='1151' column='1'/>
+ <return type-id='df4b7819'/>
+ </function-decl>
+ <function-decl name='put_pid' mangled-name='put_pid' filepath='include/linux/pid.h' line='81' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='put_pid'>
+ <parameter type-id='b94e5398'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='_raw_write_lock_irq' mangled-name='_raw_write_lock_irq' filepath='include/linux/rwlock_api_smp.h' line='23' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_write_lock_irq'>
+ <parameter type-id='8567d8b0'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='_raw_write_unlock_irq' mangled-name='_raw_write_unlock_irq' filepath='include/linux/rwlock_api_smp.h' line='35' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_write_unlock_irq'>
+ <parameter type-id='8567d8b0'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='get_task_pid' mangled-name='get_task_pid' filepath='include/linux/pid.h' line='85' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_task_pid'>
+ <parameter type-id='f23e2572'/>
+ <parameter type-id='ce78cf46'/>
+ <return type-id='b94e5398'/>
+ </function-decl>
+ <function-decl name='wait_for_completion_killable' mangled-name='wait_for_completion_killable' filepath='include/linux/completion.h' line='106' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wait_for_completion_killable'>
+ <parameter type-id='389faaf7'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='freezing_slow_path' mangled-name='freezing_slow_path' filepath='include/linux/freezer.h' line='30' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='freezing_slow_path'>
+ <parameter type-id='f23e2572'/>
+ <return type-id='c894953d'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='kernel/freezer.c' language='LANG_C89'>
+ <var-decl name='system_freezing_cnt' type-id='49178f86' mangled-name='system_freezing_cnt' visibility='default' filepath='kernel/freezer.c' line='15' column='1' elf-symbol-id='system_freezing_cnt'/>
+ <var-decl name='pm_freezing' type-id='b50a4934' mangled-name='pm_freezing' visibility='default' filepath='kernel/freezer.c' line='21' column='1' elf-symbol-id='pm_freezing'/>
+ <function-decl name='__refrigerator' mangled-name='__refrigerator' filepath='kernel/freezer.c' line='61' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__refrigerator'>
+ <parameter type-id='b50a4934' name='check_kthr_stop' filepath='kernel/freezer.c' line='61' column='1'/>
+ <return type-id='b50a4934'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='kernel/futex.c' language='LANG_C89'>
+ <function-decl name='unlock_page' mangled-name='unlock_page' filepath='include/linux/pagemap.h' line='469' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unlock_page'>
+ <parameter type-id='02f11ed4'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='kernel/groups.c' language='LANG_C89'>
+ <function-decl name='in_egroup_p' mangled-name='in_egroup_p' filepath='kernel/groups.c' line='231' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='in_egroup_p'>
+ <parameter type-id='094d8048' name='grp' filepath='kernel/groups.c' line='231' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='kernel/irq/chip.c' language='LANG_C89'>
+ <function-decl name='irq_set_handler_data' mangled-name='irq_set_handler_data' filepath='kernel/irq/chip.c' line='91' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_set_handler_data'>
+ <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/chip.c' line='91' column='1'/>
+ <parameter type-id='eaa32e2f' name='data' filepath='kernel/irq/chip.c' line='91' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='handle_nested_irq' mangled-name='handle_nested_irq' filepath='kernel/irq/chip.c' line='459' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='handle_nested_irq'>
+ <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/chip.c' line='459' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='handle_simple_irq' mangled-name='handle_simple_irq' filepath='kernel/irq/chip.c' line='553' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='handle_simple_irq'>
+ <parameter type-id='76c7d88b' name='desc' filepath='kernel/irq/chip.c' line='553' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='handle_level_irq' mangled-name='handle_level_irq' filepath='kernel/irq/chip.c' line='645' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='handle_level_irq'>
+ <parameter type-id='76c7d88b' name='desc' filepath='kernel/irq/chip.c' line='645' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='handle_edge_irq' mangled-name='handle_edge_irq' filepath='kernel/irq/chip.c' line='768' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='handle_edge_irq'>
+ <parameter type-id='76c7d88b' name='desc' filepath='kernel/irq/chip.c' line='768' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='__irq_set_handler' mangled-name='__irq_set_handler' filepath='kernel/irq/chip.c' line='1011' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__irq_set_handler'>
+ <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/chip.c' line='1011' column='1'/>
+ <parameter type-id='cdb741d3' name='handle' filepath='kernel/irq/chip.c' line='1011' column='1'/>
+ <parameter type-id='95e97e5e' name='is_chained' filepath='kernel/irq/chip.c' line='1011' column='1'/>
+ <parameter type-id='80f4b756' name='name' filepath='kernel/irq/chip.c' line='1012' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='irq_chip_set_parent_state' mangled-name='irq_chip_set_parent_state' filepath='kernel/irq/chip.c' line='1264' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_set_parent_state'>
+ <parameter type-id='1c475548' name='data' filepath='kernel/irq/chip.c' line='1264' column='1'/>
+ <parameter type-id='0187da1b' name='which' filepath='kernel/irq/chip.c' line='1265' column='1'/>
+ <parameter type-id='b50a4934' name='val' filepath='kernel/irq/chip.c' line='1266' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='irq_chip_get_parent_state' mangled-name='irq_chip_get_parent_state' filepath='kernel/irq/chip.c' line='1286' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_get_parent_state'>
+ <parameter type-id='1c475548' name='data' filepath='kernel/irq/chip.c' line='1286' column='1'/>
+ <parameter type-id='0187da1b' name='which' filepath='kernel/irq/chip.c' line='1287' column='1'/>
+ <parameter type-id='d8e6b335' name='state' filepath='kernel/irq/chip.c' line='1288' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='irq_chip_enable_parent' mangled-name='irq_chip_enable_parent' filepath='kernel/irq/chip.c' line='1306' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_enable_parent'>
+ <parameter type-id='1c475548' name='data' filepath='kernel/irq/chip.c' line='1306' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='irq_chip_disable_parent' mangled-name='irq_chip_disable_parent' filepath='kernel/irq/chip.c' line='1321' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_disable_parent'>
+ <parameter type-id='1c475548' name='data' filepath='kernel/irq/chip.c' line='1321' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='irq_chip_eoi_parent' mangled-name='irq_chip_eoi_parent' filepath='kernel/irq/chip.c' line='1368' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_eoi_parent'>
+ <parameter type-id='1c475548' name='data' filepath='kernel/irq/chip.c' line='1368' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='irq_chip_set_affinity_parent' mangled-name='irq_chip_set_affinity_parent' filepath='kernel/irq/chip.c' line='1383' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_set_affinity_parent'>
+ <parameter type-id='1c475548' name='data' filepath='kernel/irq/chip.c' line='1383' column='1'/>
+ <parameter type-id='5f8a1ac4' name='dest' filepath='kernel/irq/chip.c' line='1384' column='1'/>
+ <parameter type-id='b50a4934' name='force' filepath='kernel/irq/chip.c' line='1384' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='irq_chip_retrigger_hierarchy' mangled-name='irq_chip_retrigger_hierarchy' filepath='kernel/irq/chip.c' line='1419' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_retrigger_hierarchy'>
+ <parameter type-id='1c475548' name='data' filepath='kernel/irq/chip.c' line='1419' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='irq_chip_set_vcpu_affinity_parent' mangled-name='irq_chip_set_vcpu_affinity_parent' filepath='kernel/irq/chip.c' line='1434' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_set_vcpu_affinity_parent'>
+ <parameter type-id='1c475548' name='data' filepath='kernel/irq/chip.c' line='1434' column='1'/>
+ <parameter type-id='eaa32e2f' name='vcpu_info' filepath='kernel/irq/chip.c' line='1434' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='irq_chip_set_wake_parent' mangled-name='irq_chip_set_wake_parent' filepath='kernel/irq/chip.c' line='1451' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_set_wake_parent'>
+ <parameter type-id='1c475548' name='data' filepath='kernel/irq/chip.c' line='1451' column='1'/>
+ <parameter type-id='f0981eeb' name='on' filepath='kernel/irq/chip.c' line='1451' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='kernel/irq/devres.c' language='LANG_C89'>
+ <function-decl name='devm_free_irq' mangled-name='devm_free_irq' filepath='kernel/irq/devres.c' line='141' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_free_irq'>
+ <parameter type-id='fa0b179b' name='dev' filepath='kernel/irq/devres.c' line='141' column='1'/>
+ <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/devres.c' line='141' column='1'/>
+ <parameter type-id='eaa32e2f' name='dev_id' filepath='kernel/irq/devres.c' line='141' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='kernel/irq/generic-chip.c' language='LANG_C89'>
+ <class-decl name='syscore_ops' size-in-bits='320' is-struct='yes' visibility='default' filepath='include/linux/syscore_ops.h' line='14' column='1' id='654484ba'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='node' type-id='72f469ec' visibility='default' filepath='include/linux/syscore_ops.h' line='15' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='suspend' type-id='1db260e5' visibility='default' filepath='include/linux/syscore_ops.h' line='16' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='resume' type-id='953b12f8' visibility='default' filepath='include/linux/syscore_ops.h' line='17' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='shutdown' type-id='953b12f8' visibility='default' filepath='include/linux/syscore_ops.h' line='18' column='1'/>
+ </data-member>
+ </class-decl>
+ <pointer-type-def type-id='654484ba' size-in-bits='64' id='cbd24a98'/>
+ <function-decl name='register_syscore_ops' mangled-name='register_syscore_ops' filepath='include/linux/syscore_ops.h' line='21' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_syscore_ops'>
+ <parameter type-id='cbd24a98'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='kernel/irq/handle.c' language='LANG_C89'>
+ <function-decl name='handle_bad_irq' mangled-name='handle_bad_irq' filepath='kernel/irq/handle.c' line='31' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='handle_bad_irq'>
+ <parameter type-id='76c7d88b' name='desc' filepath='kernel/irq/handle.c' line='31' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='kernel/irq/irqdesc.c' language='LANG_C89'>
+ <var-decl name='nr_irqs' type-id='95e97e5e' mangled-name='nr_irqs' visibility='default' filepath='kernel/irq/irqdesc.c' line='130' column='1' elf-symbol-id='nr_irqs'/>
+ <function-decl name='bitmap_find_next_zero_area_off' mangled-name='bitmap_find_next_zero_area_off' filepath='include/linux/bitmap.h' line='145' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bitmap_find_next_zero_area_off'>
+ <parameter type-id='1d2c2b85'/>
+ <parameter type-id='7359adad'/>
+ <parameter type-id='7359adad'/>
+ <parameter type-id='f0981eeb'/>
+ <parameter type-id='7359adad'/>
+ <parameter type-id='7359adad'/>
+ <return type-id='7359adad'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='kernel/irq/irqdomain.c' language='LANG_C89'>
+ <pointer-type-def type-id='88370ce9' size-in-bits='64' id='ebc26324'/>
+ <function-decl name='__irq_domain_add' mangled-name='__irq_domain_add' filepath='kernel/irq/irqdomain.c' line='129' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__irq_domain_add'>
+ <parameter type-id='4a935625' name='fwnode' filepath='kernel/irq/irqdomain.c' line='129' column='1'/>
+ <parameter type-id='95e97e5e' name='size' filepath='kernel/irq/irqdomain.c' line='129' column='1'/>
+ <parameter type-id='88370ce9' name='hwirq_max' filepath='kernel/irq/irqdomain.c' line='130' column='1'/>
+ <parameter type-id='95e97e5e' name='direct_max' filepath='kernel/irq/irqdomain.c' line='130' column='1'/>
+ <parameter type-id='2c202856' name='ops' filepath='kernel/irq/irqdomain.c' line='131' column='1'/>
+ <parameter type-id='eaa32e2f' name='host_data' filepath='kernel/irq/irqdomain.c' line='132' column='1'/>
+ <return type-id='7544e824'/>
+ </function-decl>
+ <function-decl name='irq_create_mapping' mangled-name='irq_create_mapping' filepath='kernel/irq/irqdomain.c' line='636' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_create_mapping'>
+ <parameter type-id='7544e824' name='domain' filepath='kernel/irq/irqdomain.c' line='636' column='1'/>
+ <parameter type-id='88370ce9' name='hwirq' filepath='kernel/irq/irqdomain.c' line='637' column='1'/>
+ <return type-id='f0981eeb'/>
+ </function-decl>
+ <function-decl name='irq_domain_xlate_onecell' mangled-name='irq_domain_xlate_onecell' filepath='kernel/irq/irqdomain.c' line='910' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_domain_xlate_onecell'>
+ <parameter type-id='7544e824' name='d' filepath='kernel/irq/irqdomain.c' line='910' column='1'/>
+ <parameter type-id='9a537bbe' name='ctrlr' filepath='kernel/irq/irqdomain.c' line='910' column='1'/>
+ <parameter type-id='aded214c' name='intspec' filepath='kernel/irq/irqdomain.c' line='911' column='1'/>
+ <parameter type-id='f0981eeb' name='intsize' filepath='kernel/irq/irqdomain.c' line='911' column='1'/>
+ <parameter type-id='1d2c2b85' name='out_hwirq' filepath='kernel/irq/irqdomain.c' line='912' column='1'/>
+ <parameter type-id='807869d3' name='out_type' filepath='kernel/irq/irqdomain.c' line='912' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='irq_domain_xlate_twocell' mangled-name='irq_domain_xlate_twocell' filepath='kernel/irq/irqdomain.c' line='929' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_domain_xlate_twocell'>
+ <parameter type-id='7544e824' name='d' filepath='kernel/irq/irqdomain.c' line='929' column='1'/>
+ <parameter type-id='9a537bbe' name='ctrlr' filepath='kernel/irq/irqdomain.c' line='929' column='1'/>
+ <parameter type-id='aded214c' name='intspec' filepath='kernel/irq/irqdomain.c' line='930' column='1'/>
+ <parameter type-id='f0981eeb' name='intsize' filepath='kernel/irq/irqdomain.c' line='930' column='1'/>
+ <parameter type-id='ebc26324' name='out_hwirq' filepath='kernel/irq/irqdomain.c' line='931' column='1'/>
+ <parameter type-id='807869d3' name='out_type' filepath='kernel/irq/irqdomain.c' line='931' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='irq_domain_free_irqs_common' mangled-name='irq_domain_free_irqs_common' filepath='kernel/irq/irqdomain.c' line='1214' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_domain_free_irqs_common'>
+ <parameter type-id='7544e824' name='domain' filepath='kernel/irq/irqdomain.c' line='1214' column='1'/>
+ <parameter type-id='f0981eeb' name='virq' filepath='kernel/irq/irqdomain.c' line='1214' column='1'/>
+ <parameter type-id='f0981eeb' name='nr_irqs' filepath='kernel/irq/irqdomain.c' line='1215' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='irq_domain_free_irqs_top' mangled-name='irq_domain_free_irqs_top' filepath='kernel/irq/irqdomain.c' line='1235' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_domain_free_irqs_top'>
+ <parameter type-id='7544e824' name='domain' filepath='kernel/irq/irqdomain.c' line='1235' column='1'/>
+ <parameter type-id='f0981eeb' name='virq' filepath='kernel/irq/irqdomain.c' line='1235' column='1'/>
+ <parameter type-id='f0981eeb' name='nr_irqs' filepath='kernel/irq/irqdomain.c' line='1236' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='kernel/irq/manage.c' language='LANG_C89'>
+ <function-decl name='synchronize_irq' mangled-name='synchronize_irq' filepath='kernel/irq/manage.c' line='126' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='synchronize_irq'>
+ <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/manage.c' line='126' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='__irq_set_affinity' mangled-name='__irq_set_affinity' filepath='kernel/irq/manage.c' line='334' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__irq_set_affinity'>
+ <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/manage.c' line='334' column='1'/>
+ <parameter type-id='5f8a1ac4' name='mask' filepath='kernel/irq/manage.c' line='334' column='1'/>
+ <parameter type-id='b50a4934' name='force' filepath='kernel/irq/manage.c' line='334' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='irq_set_affinity_hint' mangled-name='irq_set_affinity_hint' filepath='kernel/irq/manage.c' line='350' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_set_affinity_hint'>
+ <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/manage.c' line='350' column='1'/>
+ <parameter type-id='5f8a1ac4' name='m' filepath='kernel/irq/manage.c' line='350' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='disable_irq_nosync' mangled-name='disable_irq_nosync' filepath='kernel/irq/manage.c' line='564' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='disable_irq_nosync'>
+ <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/manage.c' line='564' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='irq_set_parent' mangled-name='irq_set_parent' filepath='kernel/irq/manage.c' line='811' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_set_parent'>
+ <parameter type-id='95e97e5e' name='irq' filepath='kernel/irq/manage.c' line='811' column='1'/>
+ <parameter type-id='95e97e5e' name='parent_irq' filepath='kernel/irq/manage.c' line='811' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='enable_percpu_irq' mangled-name='enable_percpu_irq' filepath='kernel/irq/manage.c' line='2004' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='enable_percpu_irq'>
+ <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/manage.c' line='2004' column='1'/>
+ <parameter type-id='f0981eeb' name='type' filepath='kernel/irq/manage.c' line='2004' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='disable_percpu_irq' mangled-name='disable_percpu_irq' filepath='kernel/irq/manage.c' line='2063' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='disable_percpu_irq'>
+ <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/manage.c' line='2063' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='free_percpu_irq' mangled-name='free_percpu_irq' filepath='kernel/irq/manage.c' line='2148' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='free_percpu_irq'>
+ <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/manage.c' line='2148' column='1'/>
+ <parameter type-id='eaa32e2f' name='dev_id' filepath='kernel/irq/manage.c' line='2148' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='__request_percpu_irq' mangled-name='__request_percpu_irq' filepath='kernel/irq/manage.c' line='2205' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__request_percpu_irq'>
+ <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/manage.c' line='2205' column='1'/>
+ <parameter type-id='29591c9a' name='handler' filepath='kernel/irq/manage.c' line='2205' column='1'/>
+ <parameter type-id='7359adad' name='flags' filepath='kernel/irq/manage.c' line='2206' column='1'/>
+ <parameter type-id='80f4b756' name='devname' filepath='kernel/irq/manage.c' line='2206' column='1'/>
+ <parameter type-id='eaa32e2f' name='dev_id' filepath='kernel/irq/manage.c' line='2207' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='irq_get_irqchip_state' mangled-name='irq_get_irqchip_state' filepath='kernel/irq/manage.c' line='2285' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_get_irqchip_state'>
+ <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/manage.c' line='2285' column='1'/>
+ <parameter type-id='0187da1b' name='which' filepath='kernel/irq/manage.c' line='2285' column='1'/>
+ <parameter type-id='d8e6b335' name='state' filepath='kernel/irq/manage.c' line='2286' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='irq_set_irqchip_state' mangled-name='irq_set_irqchip_state' filepath='kernel/irq/manage.c' line='2318' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_set_irqchip_state'>
+ <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/manage.c' line='2318' column='1'/>
+ <parameter type-id='0187da1b' name='which' filepath='kernel/irq/manage.c' line='2318' column='1'/>
+ <parameter type-id='b50a4934' name='val' filepath='kernel/irq/manage.c' line='2319' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='kernel/kallsyms.c' language='LANG_C89'>
+ <function-decl name='sprint_symbol' mangled-name='sprint_symbol' filepath='kernel/kallsyms.c' line='435' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sprint_symbol'>
+ <parameter type-id='26a90f95' name='buffer' filepath='kernel/kallsyms.c' line='435' column='1'/>
+ <parameter type-id='7359adad' name='address' filepath='kernel/kallsyms.c' line='435' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='kernel/kheaders.c' language='LANG_C89'>
+ <qualified-type-def type-id='d83a2db1' const='yes' id='dbce337a'/>
+ <pointer-type-def type-id='dbce337a' size-in-bits='64' id='559ac6f0'/>
+ <function-decl name='sysfs_remove_bin_file' mangled-name='sysfs_remove_bin_file' filepath='include/linux/sysfs.h' line='250' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_remove_bin_file'>
+ <parameter type-id='d30bdc51'/>
+ <parameter type-id='559ac6f0'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='sysfs_create_bin_file' mangled-name='sysfs_create_bin_file' filepath='include/linux/sysfs.h' line='248' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_create_bin_file'>
+ <parameter type-id='d30bdc51'/>
+ <parameter type-id='559ac6f0'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='kernel/kmod.c' language='LANG_C89'>
+ <function-decl name='__request_module' mangled-name='__request_module' filepath='kernel/kmod.c' line='125' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__request_module'>
+ <parameter type-id='b50a4934' name='wait' filepath='kernel/kmod.c' line='125' column='1'/>
+ <parameter type-id='80f4b756' name='fmt' filepath='kernel/kmod.c' line='125' column='1'/>
+ <parameter is-variadic='yes'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='kernel/ksysfs.c' language='LANG_C89'>
+ <var-decl name='kernel_kobj' type-id='d30bdc51' mangled-name='kernel_kobj' visibility='default' filepath='kernel/ksysfs.c' line='210' column='1' elf-symbol-id='kernel_kobj'/>
+ <function-decl name='kobject_create_and_add' mangled-name='kobject_create_and_add' filepath='include/linux/kobject.h' line='112' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kobject_create_and_add'>
+ <parameter type-id='80f4b756'/>
+ <parameter type-id='d30bdc51'/>
+ <return type-id='d30bdc51'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='kernel/kthread.c' language='LANG_C89'>
+ <pointer-type-def type-id='8fb867c9' size-in-bits='64' id='d56697f1'/>
+ <function-decl name='kthread_should_park' mangled-name='kthread_should_park' filepath='kernel/kthread.c' line='116' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_should_park'>
+ <return type-id='b50a4934'/>
+ </function-decl>
+ <function-decl name='kthread_parkme' mangled-name='kthread_parkme' filepath='kernel/kthread.c' line='207' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_parkme'>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='__kthread_init_worker' mangled-name='__kthread_init_worker' filepath='kernel/kthread.c' line='636' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__kthread_init_worker'>
+ <parameter type-id='c41f4539' name='worker' filepath='kernel/kthread.c' line='636' column='1'/>
+ <parameter type-id='80f4b756' name='name' filepath='kernel/kthread.c' line='637' column='1'/>
+ <parameter type-id='a57283f9' name='key' filepath='kernel/kthread.c' line='638' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='kthread_worker_fn' mangled-name='kthread_worker_fn' filepath='kernel/kthread.c' line='663' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_worker_fn'>
+ <parameter type-id='eaa32e2f' name='worker_ptr' filepath='kernel/kthread.c' line='663' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='kthread_queue_work' mangled-name='kthread_queue_work' filepath='kernel/kthread.c' line='848' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_queue_work'>
+ <parameter type-id='c41f4539' name='worker' filepath='kernel/kthread.c' line='848' column='1'/>
+ <parameter type-id='401eb95c' name='work' filepath='kernel/kthread.c' line='849' column='1'/>
+ <return type-id='b50a4934'/>
+ </function-decl>
+ <function-decl name='kthread_delayed_work_timer_fn' mangled-name='kthread_delayed_work_timer_fn' filepath='kernel/kthread.c' line='872' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_delayed_work_timer_fn'>
+ <parameter type-id='9248e67f' name='t' filepath='kernel/kthread.c' line='872' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='kthread_queue_delayed_work' mangled-name='kthread_queue_delayed_work' filepath='kernel/kthread.c' line='943' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_queue_delayed_work'>
+ <parameter type-id='c41f4539' name='worker' filepath='kernel/kthread.c' line='943' column='1'/>
+ <parameter type-id='d56697f1' name='dwork' filepath='kernel/kthread.c' line='944' column='1'/>
+ <parameter type-id='7359adad' name='delay' filepath='kernel/kthread.c' line='945' column='1'/>
+ <return type-id='b50a4934'/>
+ </function-decl>
+ <function-decl name='kthread_flush_work' mangled-name='kthread_flush_work' filepath='kernel/kthread.c' line='981' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_flush_work'>
+ <parameter type-id='401eb95c' name='work' filepath='kernel/kthread.c' line='981' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='kthread_mod_delayed_work' mangled-name='kthread_mod_delayed_work' filepath='kernel/kthread.c' line='1090' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_mod_delayed_work'>
+ <parameter type-id='c41f4539' name='worker' filepath='kernel/kthread.c' line='1090' column='1'/>
+ <parameter type-id='d56697f1' name='dwork' filepath='kernel/kthread.c' line='1091' column='1'/>
+ <parameter type-id='7359adad' name='delay' filepath='kernel/kthread.c' line='1092' column='1'/>
+ <return type-id='b50a4934'/>
+ </function-decl>
+ <function-decl name='kthread_cancel_work_sync' mangled-name='kthread_cancel_work_sync' filepath='kernel/kthread.c' line='1185' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_cancel_work_sync'>
+ <parameter type-id='401eb95c' name='work' filepath='kernel/kthread.c' line='1185' column='1'/>
+ <return type-id='b50a4934'/>
+ </function-decl>
+ <function-decl name='kthread_cancel_delayed_work_sync' mangled-name='kthread_cancel_delayed_work_sync' filepath='kernel/kthread.c' line='1200' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_cancel_delayed_work_sync'>
+ <parameter type-id='d56697f1' name='dwork' filepath='kernel/kthread.c' line='1200' column='1'/>
+ <return type-id='b50a4934'/>
+ </function-decl>
+ <function-decl name='kthread_flush_worker' mangled-name='kthread_flush_worker' filepath='kernel/kthread.c' line='1213' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_flush_worker'>
+ <parameter type-id='c41f4539' name='worker' filepath='kernel/kthread.c' line='1213' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='kernel/locking/mutex.c' language='LANG_C89'>
+ <class-decl name='ww_mutex' size-in-bits='320' is-struct='yes' visibility='default' filepath='include/linux/ww_mutex.h' line='51' column='1' id='45793a97'>
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+ <function-decl name='sysfs_create_groups' mangled-name='sysfs_create_groups' filepath='include/linux/sysfs.h' line='269' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_create_groups'>
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+ <qualified-type-def type-id='6110442c' const='yes' id='4b11cd33'/>
+ <pointer-type-def type-id='4b11cd33' size-in-bits='64' id='4605de5b'/>
+ <function-decl name='cma_get_base' mangled-name='cma_get_base' filepath='mm/cma.c' line='47' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cma_get_base'>
+ <parameter type-id='4605de5b' name='cma' filepath='mm/cma.c' line='47' column='1'/>
+ <return type-id='2522883d'/>
+ </function-decl>
+ <function-decl name='cma_get_size' mangled-name='cma_get_size' filepath='mm/cma.c' line='53' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cma_get_size'>
+ <parameter type-id='4605de5b' name='cma' filepath='mm/cma.c' line='53' column='1'/>
+ <return type-id='7359adad'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='mm/filemap.c' language='LANG_C89'>
+ <class-decl name='radix_tree_iter' size-in-bits='256' is-struct='yes' visibility='default' filepath='include/linux/radix-tree.h' line='155' column='1' id='c7ead0f9'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='index' type-id='7359adad' visibility='default' filepath='include/linux/radix-tree.h' line='156' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='next_index' type-id='7359adad' visibility='default' filepath='include/linux/radix-tree.h' line='157' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='tags' type-id='7359adad' visibility='default' filepath='include/linux/radix-tree.h' line='158' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='node' type-id='8da21f13' visibility='default' filepath='include/linux/radix-tree.h' line='159' column='1'/>
+ </data-member>
+ </class-decl>
+ <pointer-type-def type-id='c7ead0f9' size-in-bits='64' id='0cbbabe1'/>
+ <function-decl name='radix_tree_next_chunk' mangled-name='radix_tree_next_chunk' filepath='include/linux/radix-tree.h' line='409' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='radix_tree_next_chunk'>
+ <parameter type-id='4d54f206'/>
+ <parameter type-id='0cbbabe1'/>
+ <parameter type-id='f0981eeb'/>
+ <return type-id='63e171df'/>
+ </function-decl>
+ <function-decl name='generic_file_read_iter' mangled-name='generic_file_read_iter' filepath='mm/filemap.c' line='2362' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='generic_file_read_iter'>
+ <parameter type-id='80f25feb' name='iocb' filepath='mm/filemap.c' line='2362' column='1'/>
+ <parameter type-id='4fa10f9e' name='iter' filepath='mm/filemap.c' line='2362' column='1'/>
+ <return type-id='79a0948f'/>
+ </function-decl>
+ <function-decl name='iov_iter_revert' mangled-name='iov_iter_revert' filepath='include/linux/uio.h' line='86' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iov_iter_revert'>
+ <parameter type-id='4fa10f9e'/>
+ <parameter type-id='7359adad'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='filemap_fault' mangled-name='filemap_fault' filepath='mm/filemap.c' line='2585' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='filemap_fault'>
+ <parameter type-id='d02f4143' name='vmf' filepath='mm/filemap.c' line='2585' column='1'/>
+ <return type-id='e9265215'/>
+ </function-decl>
+ <function-decl name='filemap_map_pages' mangled-name='filemap_map_pages' filepath='mm/filemap.c' line='2711' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='filemap_map_pages'>
+ <parameter type-id='d02f4143' name='vmf' filepath='mm/filemap.c' line='2711' column='1'/>
+ <parameter type-id='7359adad' name='start_pgoff' filepath='mm/filemap.c' line='2712' column='1'/>
+ <parameter type-id='7359adad' name='end_pgoff' filepath='mm/filemap.c' line='2712' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='filemap_page_mkwrite' mangled-name='filemap_page_mkwrite' filepath='mm/filemap.c' line='2794' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='filemap_page_mkwrite'>
+ <parameter type-id='d02f4143' name='vmf' filepath='mm/filemap.c' line='2794' column='1'/>
+ <return type-id='e9265215'/>
+ </function-decl>
+ <function-decl name='generic_file_mmap' mangled-name='generic_file_mmap' filepath='mm/filemap.c' line='2828' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='generic_file_mmap'>
+ <parameter type-id='77e79a4b' name='file' filepath='mm/filemap.c' line='2828' column='1'/>
+ <parameter type-id='2ae08426' name='vma' filepath='mm/filemap.c' line='2828' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='invalidate_mapping_pages' mangled-name='invalidate_mapping_pages' filepath='include/linux/fs.h' line='2726' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='invalidate_mapping_pages'>
+ <parameter type-id='f57039f0'/>
+ <parameter type-id='7359adad'/>
+ <parameter type-id='7359adad'/>
+ <return type-id='7359adad'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='mm/gup.c' language='LANG_C89'>
+ <pointer-type-def type-id='2ae08426' size-in-bits='64' id='8b6fdee4'/>
+ <function-decl name='get_user_pages' mangled-name='get_user_pages' filepath='mm/gup.c' line='1125' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_user_pages'>
+ <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='1125' column='1'/>
+ <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='1125' column='1'/>
+ <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='1126' column='1'/>
+ <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='1126' column='1'/>
+ <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='1127' column='1'/>
+ <return type-id='bd54fe1a'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='mm/madvise.c' language='LANG_C89'>
+ <function-decl name='vfs_fallocate' mangled-name='vfs_fallocate' filepath='include/linux/fs.h' line='2541' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vfs_fallocate'>
+ <parameter type-id='77e79a4b'/>
+ <parameter type-id='95e97e5e'/>
+ <parameter type-id='1eb56b1e'/>
+ <parameter type-id='1eb56b1e'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='mm/memblock.c' language='LANG_C89'>
+ <function-decl name='memblock_overlaps_memory' mangled-name='memblock_overlaps_memory' filepath='mm/memblock.c' line='1740' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='memblock_overlaps_memory'>
+ <parameter type-id='2522883d' name='base' filepath='mm/memblock.c' line='1740' column='1'/>
+ <parameter type-id='2522883d' name='size' filepath='mm/memblock.c' line='1741' column='1'/>
+ <return type-id='b50a4934'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='mm/memcontrol.c' language='LANG_C89'>
+ <var-decl name='memcg_sockets_enabled_key' type-id='237c0d27' mangled-name='memcg_sockets_enabled_key' visibility='default' filepath='mm/memcontrol.c' line='6309' column='1' elf-symbol-id='memcg_sockets_enabled_key'/>
+ </abi-instr>
+ <abi-instr address-size='64' path='mm/memory.c' language='LANG_C89'>
+ <function-decl name='vm_insert_page' mangled-name='vm_insert_page' filepath='mm/memory.c' line='1796' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vm_insert_page'>
+ <parameter type-id='2ae08426' name='vma' filepath='mm/memory.c' line='1796' column='1'/>
+ <parameter type-id='7359adad' name='addr' filepath='mm/memory.c' line='1796' column='1'/>
+ <parameter type-id='02f11ed4' name='page' filepath='mm/memory.c' line='1797' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='vm_insert_pfn' mangled-name='vm_insert_pfn' filepath='mm/memory.c' line='1887' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vm_insert_pfn'>
+ <parameter type-id='2ae08426' name='vma' filepath='mm/memory.c' line='1887' column='1'/>
+ <parameter type-id='7359adad' name='addr' filepath='mm/memory.c' line='1887' column='1'/>
+ <parameter type-id='7359adad' name='pfn' filepath='mm/memory.c' line='1888' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='vm_insert_mixed' mangled-name='vm_insert_mixed' filepath='mm/memory.c' line='1991' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vm_insert_mixed'>
+ <parameter type-id='2ae08426' name='vma' filepath='mm/memory.c' line='1991' column='1'/>
+ <parameter type-id='7359adad' name='addr' filepath='mm/memory.c' line='1991' column='1'/>
+ <parameter type-id='abe59ef3' name='pfn' filepath='mm/memory.c' line='1992' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='vm_iomap_memory' mangled-name='vm_iomap_memory' filepath='mm/memory.c' line='2199' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vm_iomap_memory'>
+ <parameter type-id='2ae08426' name='vma' filepath='mm/memory.c' line='2199' column='1'/>
+ <parameter type-id='2522883d' name='start' filepath='mm/memory.c' line='2199' column='1'/>
+ <parameter type-id='7359adad' name='len' filepath='mm/memory.c' line='2199' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='mm/mempool.c' language='LANG_C89'>
+ <function-decl name='mempool_kmalloc' mangled-name='mempool_kmalloc' filepath='mm/mempool.c' line='520' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mempool_kmalloc'>
+ <parameter type-id='3eb7c31c' name='gfp_mask' filepath='mm/mempool.c' line='520' column='1'/>
+ <parameter type-id='eaa32e2f' name='pool_data' filepath='mm/mempool.c' line='520' column='1'/>
+ <return type-id='eaa32e2f'/>
+ </function-decl>
+ <function-decl name='mempool_kfree' mangled-name='mempool_kfree' filepath='mm/mempool.c' line='527' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mempool_kfree'>
+ <parameter type-id='eaa32e2f' name='element' filepath='mm/mempool.c' line='527' column='1'/>
+ <parameter type-id='eaa32e2f' name='pool_data' filepath='mm/mempool.c' line='527' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='mm/mm_event.c' language='LANG_C89'>
+ <enum-decl name='mm_event_type' filepath='include/linux/mm_event.h' line='5' column='1' id='b04f95aa'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='MM_MIN_FAULT' value='0'/>
+ <enumerator name='MM_MAJ_FAULT' value='1'/>
+ <enumerator name='MM_READ_IO' value='2'/>
+ <enumerator name='MM_COMPACTION' value='3'/>
+ <enumerator name='MM_RECLAIM' value='4'/>
+ <enumerator name='MM_SWP_FAULT' value='5'/>
+ <enumerator name='MM_KERN_ALLOC' value='6'/>
+ <enumerator name='BLK_READ_SUBMIT_BIO' value='7'/>
+ <enumerator name='UFS_READ_QUEUE_CMD' value='8'/>
+ <enumerator name='UFS_READ_SEND_CMD' value='9'/>
+ <enumerator name='UFS_READ_COMPL_CMD' value='10'/>
+ <enumerator name='F2FS_READ_DATA' value='11'/>
+ <enumerator name='MM_TYPE_NUM' value='12'/>
+ </enum-decl>
+ <function-decl name='mm_event_count' mangled-name='mm_event_count' filepath='mm/mm_event.c' line='4' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mm_event_count'>
+ <parameter type-id='b04f95aa' name='event' filepath='mm/mm_event.c' line='4' column='1'/>
+ <parameter type-id='95e97e5e' name='count' filepath='mm/mm_event.c' line='4' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='mm_event_end' mangled-name='mm_event_end' filepath='mm/mm_event.c' line='9' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mm_event_end'>
+ <parameter type-id='b04f95aa' name='event' filepath='mm/mm_event.c' line='9' column='1'/>
+ <parameter type-id='fbc017ef' name='start' filepath='mm/mm_event.c' line='9' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='mm/mmap.c' language='LANG_C89'>
+ <class-decl name='vm_unmapped_area_info' size-in-bits='384' is-struct='yes' visibility='default' filepath='include/linux/mm.h' line='2407' column='1' id='867dcb9c'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='flags' type-id='7359adad' visibility='default' filepath='include/linux/mm.h' line='2409' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='length' type-id='7359adad' visibility='default' filepath='include/linux/mm.h' line='2410' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='low_limit' type-id='7359adad' visibility='default' filepath='include/linux/mm.h' line='2411' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='high_limit' type-id='7359adad' visibility='default' filepath='include/linux/mm.h' line='2412' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='align_mask' type-id='7359adad' visibility='default' filepath='include/linux/mm.h' line='2413' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='320'>
+ <var-decl name='align_offset' type-id='7359adad' visibility='default' filepath='include/linux/mm.h' line='2414' column='1'/>
+ </data-member>
+ </class-decl>
+ <pointer-type-def type-id='867dcb9c' size-in-bits='64' id='452b82fa'/>
+ <function-decl name='vm_get_page_prot' mangled-name='vm_get_page_prot' filepath='mm/mmap.c' line='105' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vm_get_page_prot'>
+ <parameter type-id='7359adad' name='vm_flags' filepath='mm/mmap.c' line='105' column='1'/>
+ <return type-id='2e2dcbd3'/>
+ </function-decl>
+ <function-decl name='security_mmap_addr' mangled-name='security_mmap_addr' filepath='include/linux/security.h' line='327' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='security_mmap_addr'>
+ <parameter type-id='7359adad'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='unmapped_area_topdown' mangled-name='unmapped_area_topdown' filepath='mm/mmap.c' line='1954' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unmapped_area_topdown'>
+ <parameter type-id='452b82fa' name='info' filepath='mm/mmap.c' line='1954' column='1'/>
+ <return type-id='7359adad'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='mm/mmzone.c' language='LANG_C89'>
+ <pointer-type-def type-id='caf9c470' size-in-bits='64' id='71278586'/>
+ <function-decl name='__next_zones_zonelist' mangled-name='__next_zones_zonelist' filepath='mm/mmzone.c' line='56' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__next_zones_zonelist'>
+ <parameter type-id='71278586' name='z' filepath='mm/mmzone.c' line='56' column='1'/>
+ <parameter type-id='d278ff03' name='highest_zoneidx' filepath='mm/mmzone.c' line='57' column='1'/>
+ <parameter type-id='f461c050' name='nodes' filepath='mm/mmzone.c' line='58' column='1'/>
+ <return type-id='71278586'/>
+ </function-decl>
+ <pointer-type-def type-id='6a7d16bb' size-in-bits='64' id='f461c050'/>
+ </abi-instr>
+ <abi-instr address-size='64' path='mm/nobootmem.c' language='LANG_C89'>
+ <var-decl name='contig_page_data' type-id='54406315' mangled-name='contig_page_data' visibility='default' filepath='mm/nobootmem.c' line='31' column='1' elf-symbol-id='contig_page_data'/>
+ </abi-instr>
+ <abi-instr address-size='64' path='mm/page-writeback.c' language='LANG_C89'>
+ <function-decl name='set_page_dirty_lock' mangled-name='set_page_dirty_lock' filepath='mm/page-writeback.c' line='2589' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='set_page_dirty_lock'>
+ <parameter type-id='02f11ed4' name='page' filepath='mm/page-writeback.c' line='2589' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='mm/page_alloc.c' language='LANG_C89'>
+ <pointer-type-def type-id='6a7d16bb' size-in-bits='64' id='f461c050'/>
+ <var-decl name='totalram_pages' type-id='7359adad' mangled-name='totalram_pages' visibility='default' filepath='mm/page_alloc.c' line='129' column='1' elf-symbol-id='totalram_pages'/>
+ <function-decl name='__free_pages' mangled-name='__free_pages' filepath='mm/page_alloc.c' line='4620' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__free_pages'>
+ <parameter type-id='02f11ed4' name='page' filepath='mm/page_alloc.c' line='4620' column='1'/>
+ <parameter type-id='f0981eeb' name='order' filepath='mm/page_alloc.c' line='4620' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='adjust_managed_page_count' mangled-name='adjust_managed_page_count' filepath='mm/page_alloc.c' line='7191' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='adjust_managed_page_count'>
+ <parameter type-id='02f11ed4' name='page' filepath='mm/page_alloc.c' line='7191' column='1'/>
+ <parameter type-id='bd54fe1a' name='count' filepath='mm/page_alloc.c' line='7191' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='zone_watermark_ok_safe' mangled-name='zone_watermark_ok_safe' filepath='mm/page_alloc.c' line='3398' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zone_watermark_ok_safe'>
+ <parameter type-id='0a0aff97' name='z' filepath='mm/page_alloc.c' line='3398' column='1'/>
+ <parameter type-id='f0981eeb' name='order' filepath='mm/page_alloc.c' line='3398' column='1'/>
+ <parameter type-id='7359adad' name='mark' filepath='mm/page_alloc.c' line='3399' column='1'/>
+ <parameter type-id='95e97e5e' name='classzone_idx' filepath='mm/page_alloc.c' line='3399' column='1'/>
+ <return type-id='b50a4934'/>
+ </function-decl>
+ <function-decl name='__alloc_pages_nodemask' mangled-name='__alloc_pages_nodemask' filepath='mm/page_alloc.c' line='4530' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__alloc_pages_nodemask'>
+ <parameter type-id='3eb7c31c' name='gfp_mask' filepath='mm/page_alloc.c' line='4530' column='1'/>
+ <parameter type-id='f0981eeb' name='order' filepath='mm/page_alloc.c' line='4530' column='1'/>
+ <parameter type-id='95e97e5e' name='preferred_nid' filepath='mm/page_alloc.c' line='4530' column='1'/>
+ <parameter type-id='f461c050' name='nodemask' filepath='mm/page_alloc.c' line='4531' column='1'/>
+ <return type-id='02f11ed4'/>
+ </function-decl>
+ <function-decl name='__get_free_pages' mangled-name='__get_free_pages' filepath='mm/page_alloc.c' line='4595' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__get_free_pages'>
+ <parameter type-id='3eb7c31c' name='gfp_mask' filepath='mm/page_alloc.c' line='4595' column='1'/>
+ <parameter type-id='f0981eeb' name='order' filepath='mm/page_alloc.c' line='4595' column='1'/>
+ <return type-id='7359adad'/>
+ </function-decl>
+ <function-decl name='free_pages_exact' mangled-name='free_pages_exact' filepath='mm/page_alloc.c' line='4814' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='free_pages_exact'>
+ <parameter type-id='eaa32e2f' name='virt' filepath='mm/page_alloc.c' line='4814' column='1'/>
+ <parameter type-id='b59d7dce' name='size' filepath='mm/page_alloc.c' line='4814' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='nr_free_buffer_pages' mangled-name='nr_free_buffer_pages' filepath='mm/page_alloc.c' line='4862' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nr_free_buffer_pages'>
+ <return type-id='7359adad'/>
+ </function-decl>
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+ <parameter type-id='7359adad'/>
+ <return type-id='7359adad'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='mm/page_io.c' language='LANG_C89'>
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+ <parameter type-id='fb55efa1'/>
+ <return type-id='f0981eeb'/>
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+ </abi-instr>
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+ <function-decl name='__alloc_percpu' mangled-name='__alloc_percpu' filepath='mm/percpu.c' line='1558' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__alloc_percpu'>
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+ <parameter type-id='b59d7dce' name='align' filepath='mm/percpu.c' line='1558' column='1'/>
+ <return type-id='eaa32e2f'/>
+ </function-decl>
+ <function-decl name='per_cpu_ptr_to_phys' mangled-name='per_cpu_ptr_to_phys' filepath='mm/percpu.c' line='1825' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='per_cpu_ptr_to_phys'>
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+ <return type-id='2522883d'/>
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+ </abi-instr>
+ <abi-instr address-size='64' path='mm/shmem.c' language='LANG_C89'>
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+ <return type-id='48b5725f'/>
+ </function-decl>
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+ <parameter type-id='7e666abe'/>
+ <parameter type-id='0e87f9be'/>
+ <return type-id='48b5725f'/>
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+ <parameter type-id='7e666abe'/>
+ <return type-id='48b5725f'/>
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+ </abi-instr>
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+ </array-type-def>
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+ </data-member>
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+ </data-member>
+ <data-member access='public'>
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+ <data-member access='public' layout-offset-in-bits='0'>
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+ </data-member>
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+ </data-member>
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+ </data-member>
+ <data-member access='public' layout-offset-in-bits='320'>
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+ </data-member>
+ <data-member access='public' layout-offset-in-bits='384'>
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+ <pointer-type-def type-id='ad0ff4ed' size-in-bits='64' id='8a4f2b79'/>
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+ <function-decl name='ptr_to_hashval' mangled-name='ptr_to_hashval' filepath='include/linux/string.h' line='212' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ptr_to_hashval'>
+ <parameter type-id='eaa32e2f'/>
+ <parameter type-id='1d2c2b85'/>
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+ <parameter type-id='eaa32e2f'/>
+ <return type-id='7359adad'/>
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+ </abi-instr>
+ <abi-instr address-size='64' path='mm/slub.c' language='LANG_C89'>
+ <function-decl name='kmem_cache_free_bulk' mangled-name='kmem_cache_free_bulk' filepath='mm/slub.c' line='3146' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmem_cache_free_bulk'>
+ <parameter type-id='f3b4aca8' name='s' filepath='mm/slub.c' line='3146' column='1'/>
+ <parameter type-id='b59d7dce' name='size' filepath='mm/slub.c' line='3146' column='1'/>
+ <parameter type-id='63e171df' name='p' filepath='mm/slub.c' line='3146' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='kmem_cache_alloc_bulk' mangled-name='kmem_cache_alloc_bulk' filepath='mm/slub.c' line='3164' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmem_cache_alloc_bulk'>
+ <parameter type-id='f3b4aca8' name='s' filepath='mm/slub.c' line='3164' column='1'/>
+ <parameter type-id='3eb7c31c' name='flags' filepath='mm/slub.c' line='3164' column='1'/>
+ <parameter type-id='b59d7dce' name='size' filepath='mm/slub.c' line='3164' column='1'/>
+ <parameter type-id='63e171df' name='p' filepath='mm/slub.c' line='3165' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='__kmalloc' mangled-name='__kmalloc' filepath='mm/slub.c' line='3829' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__kmalloc'>
+ <parameter type-id='b59d7dce' name='size' filepath='mm/slub.c' line='3829' column='1'/>
+ <parameter type-id='3eb7c31c' name='flags' filepath='mm/slub.c' line='3829' column='1'/>
+ <return type-id='eaa32e2f'/>
+ </function-decl>
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+ <parameter type-id='89b70200'/>
+ <return type-id='48b5725f'/>
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+ </abi-instr>
+ <abi-instr address-size='64' path='mm/swap.c' language='LANG_C89'>
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+ <parameter type-id='02f11ed4' name='page' filepath='mm/swap.c' line='99' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='mm/truncate.c' language='LANG_C89'>
+ <function-decl name='truncate_inode_pages' mangled-name='truncate_inode_pages' filepath='mm/truncate.c' line='473' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='truncate_inode_pages'>
+ <parameter type-id='f57039f0' name='mapping' filepath='mm/truncate.c' line='473' column='1'/>
+ <parameter type-id='69bf7bee' name='lstart' filepath='mm/truncate.c' line='473' column='1'/>
+ <return type-id='48b5725f'/>
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+ <parameter type-id='f57039f0'/>
+ <parameter type-id='1eb56b1e'/>
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+ <abi-instr address-size='64' path='mm/usercopy.c' language='LANG_C89'>
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+ <parameter type-id='eaa32e2f' name='ptr' filepath='mm/usercopy.c' line='260' column='1'/>
+ <parameter type-id='7359adad' name='n' filepath='mm/usercopy.c' line='260' column='1'/>
+ <parameter type-id='b50a4934' name='to_user' filepath='mm/usercopy.c' line='260' column='1'/>
+ <return type-id='48b5725f'/>
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+ </abi-instr>
+ <abi-instr address-size='64' path='mm/util.c' language='LANG_C89'>
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+ <parameter type-id='eaa32e2f' name='src' filepath='mm/util.c' line='114' column='1'/>
+ <parameter type-id='b59d7dce' name='len' filepath='mm/util.c' line='114' column='1'/>
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+ <return type-id='eaa32e2f'/>
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+ <parameter type-id='eaa32e2f' name='src' filepath='mm/util.c' line='182' column='1'/>
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+ <return type-id='eaa32e2f'/>
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+ <abi-instr address-size='64' path='mm/vmalloc.c' language='LANG_C89'>
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+ <parameter type-id='eaa32e2f' name='mem' filepath='mm/vmalloc.c' line='1131' column='1'/>
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+ <return type-id='48b5725f'/>
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+ <function-decl name='hci_alloc_dev' mangled-name='hci_alloc_dev' filepath='net/bluetooth/hci_core.c' line='3056' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hci_alloc_dev'>
+ <return type-id='9ad862e7'/>
+ </function-decl>
+ <function-decl name='bt_err' mangled-name='bt_err' filepath='include/net/bluetooth/bluetooth.h' line='130' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bt_err'>
+ <parameter type-id='80f4b756'/>
+ <parameter is-variadic='yes'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='hci_free_dev' mangled-name='hci_free_dev' filepath='net/bluetooth/hci_core.c' line='3149' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hci_free_dev'>
+ <parameter type-id='9ad862e7' name='hdev' filepath='net/bluetooth/hci_core.c' line='3149' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='hci_register_dev' mangled-name='hci_register_dev' filepath='net/bluetooth/hci_core.c' line='3157' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hci_register_dev'>
+ <parameter type-id='9ad862e7' name='hdev' filepath='net/bluetooth/hci_core.c' line='3157' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='rfkill_alloc' mangled-name='rfkill_alloc' filepath='include/linux/rfkill.h' line='79' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rfkill_alloc'>
+ <parameter type-id='80f4b756'/>
+ <parameter type-id='fa0b179b'/>
+ <parameter type-id='6bac1cb5'/>
+ <parameter type-id='6a6a70e7'/>
+ <parameter type-id='eaa32e2f'/>
+ <return type-id='c5b94c75'/>
+ </function-decl>
+ <function-decl name='rfkill_register' mangled-name='rfkill_register' filepath='include/linux/rfkill.h' line='100' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rfkill_register'>
+ <parameter type-id='c5b94c75'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='rfkill_destroy' mangled-name='rfkill_destroy' filepath='include/linux/rfkill.h' line='138' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rfkill_destroy'>
+ <parameter type-id='c5b94c75'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='hci_unregister_dev' mangled-name='hci_unregister_dev' filepath='net/bluetooth/hci_core.c' line='3262' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hci_unregister_dev'>
+ <parameter type-id='9ad862e7' name='hdev' filepath='net/bluetooth/hci_core.c' line='3262' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='rfkill_unregister' mangled-name='rfkill_unregister' filepath='include/linux/rfkill.h' line='130' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rfkill_unregister'>
+ <parameter type-id='c5b94c75'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='hci_recv_frame' mangled-name='hci_recv_frame' filepath='net/bluetooth/hci_core.c' line='3364' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hci_recv_frame'>
+ <parameter type-id='9ad862e7' name='hdev' filepath='net/bluetooth/hci_core.c' line='3364' column='1'/>
+ <parameter type-id='0fbf3cfd' name='skb' filepath='net/bluetooth/hci_core.c' line='3364' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-type size-in-bits='64' id='d7322b1f'>
+ <parameter type-id='9ad862e7'/>
+ <return type-id='95e97e5e'/>
+ </function-type>
+ <function-type size-in-bits='64' id='61a50456'>
+ <parameter type-id='9ad862e7'/>
+ <parameter type-id='c3e18af8'/>
+ <return type-id='95e97e5e'/>
+ </function-type>
+ <function-type size-in-bits='64' id='73adb477'>
+ <parameter type-id='9ad862e7'/>
+ <parameter type-id='0fbf3cfd'/>
+ <return type-id='95e97e5e'/>
+ </function-type>
+ <function-type size-in-bits='64' id='bd4974e4'>
+ <parameter type-id='9ad862e7'/>
+ <parameter type-id='b50a4934'/>
+ <return type-id='95e97e5e'/>
+ </function-type>
+ <function-type size-in-bits='64' id='b69e3ec6'>
+ <parameter type-id='eaa32e2f'/>
+ <parameter type-id='b50a4934'/>
+ <return type-id='95e97e5e'/>
+ </function-type>
+ <function-type size-in-bits='64' id='1ca1bfac'>
+ <parameter type-id='9ad862e7'/>
+ <parameter type-id='f9b06939'/>
+ <return type-id='48b5725f'/>
+ </function-type>
+ <function-type size-in-bits='64' id='6071dd22'>
+ <parameter type-id='9ad862e7'/>
+ <parameter type-id='f0981eeb'/>
+ <return type-id='48b5725f'/>
+ </function-type>
+ <function-type size-in-bits='64' id='182ef894'>
+ <parameter type-id='c5b94c75'/>
+ <parameter type-id='eaa32e2f'/>
+ <return type-id='48b5725f'/>
+ </function-type>
+ </abi-instr>
+ <abi-instr address-size='64' path='net/bridge/br.c' language='LANG_C89'>
+ <function-decl name='call_netdevice_notifiers' mangled-name='call_netdevice_notifiers' filepath='include/linux/netdevice.h' line='2572' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='call_netdevice_notifiers'>
+ <parameter type-id='7359adad'/>
+ <parameter type-id='68a2d05b'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='net/bridge/br_input.c' language='LANG_C89'>
+ <typedef-decl name='br_should_route_hook_t' type-id='918604f1' filepath='include/linux/if_bridge.h' line='59' column='1' id='add2aaad'/>
+ <pointer-type-def type-id='add2aaad' size-in-bits='64' id='9651feb6'/>
+ <var-decl name='br_should_route_hook' type-id='9651feb6' mangled-name='br_should_route_hook' visibility='default' filepath='net/bridge/br_input.c' line='27' column='1' elf-symbol-id='br_should_route_hook'/>
+ </abi-instr>
+ <abi-instr address-size='64' path='net/core/datagram.c' language='LANG_C89'>
+ <function-decl name='datagram_poll' mangled-name='datagram_poll' filepath='net/core/datagram.c' line='835' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='datagram_poll'>
+ <parameter type-id='77e79a4b' name='file' filepath='net/core/datagram.c' line='835' column='1'/>
+ <parameter type-id='13103032' name='sock' filepath='net/core/datagram.c' line='835' column='1'/>
+ <parameter type-id='a54c778f' name='wait' filepath='net/core/datagram.c' line='836' column='1'/>
+ <return type-id='8f254b08'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='net/core/dev.c' language='LANG_C89'>
+ <class-decl name='rps_sock_flow_table' size-in-bits='512' is-struct='yes' visibility='default' filepath='include/linux/netdevice.h' line='687' column='1' id='512813dd'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='mask' type-id='19c2251e' visibility='default' filepath='include/linux/netdevice.h' line='688' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='512'>
+ <var-decl name='ents' type-id='c165e8b9' visibility='default' filepath='include/linux/netdevice.h' line='690' column='1'/>
+ </data-member>
+ </class-decl>
+ <enum-decl name='skb_free_reason' filepath='include/linux/netdevice.h' line='3569' column='1' id='1f17c6b4'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='SKB_REASON_CONSUMED' value='0'/>
+ <enumerator name='SKB_REASON_DROPPED' value='1'/>
+ </enum-decl>
+ <pointer-type-def type-id='512813dd' size-in-bits='64' id='2293f1dd'/>
+ <function-decl name='netdev_rx_handler_unregister' mangled-name='netdev_rx_handler_unregister' filepath='net/core/dev.c' line='4722' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_rx_handler_unregister'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='4722' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='netdev_upper_dev_unlink' mangled-name='netdev_upper_dev_unlink' filepath='net/core/dev.c' line='7270' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_upper_dev_unlink'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='7270' column='1'/>
+ <parameter type-id='68a2d05b' name='upper_dev' filepath='net/core/dev.c' line='7271' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='netdev_lower_state_changed' mangled-name='netdev_lower_state_changed' filepath='net/core/dev.c' line='7441' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_lower_state_changed'>
+ <parameter type-id='68a2d05b' name='lower_dev' filepath='net/core/dev.c' line='7441' column='1'/>
+ <parameter type-id='eaa32e2f' name='lower_state_info' filepath='net/core/dev.c' line='7442' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <var-decl name='rps_sock_flow_table' type-id='2293f1dd' mangled-name='rps_sock_flow_table' visibility='default' filepath='net/core/dev.c' line='3950' column='1' elf-symbol-id='rps_sock_flow_table'/>
+ <var-decl name='rps_cpu_mask' type-id='19c2251e' mangled-name='rps_cpu_mask' visibility='default' filepath='net/core/dev.c' line='3952' column='1' elf-symbol-id='rps_cpu_mask'/>
+ <var-decl name='rfs_needed' type-id='00205383' mangled-name='rfs_needed' visibility='default' filepath='net/core/dev.c' line='3957' column='1' elf-symbol-id='rfs_needed'/>
+ <function-decl name='__dev_get_by_index' mangled-name='__dev_get_by_index' filepath='net/core/dev.c' line='811' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__dev_get_by_index'>
+ <parameter type-id='a2bff676' name='net' filepath='net/core/dev.c' line='811' column='1'/>
+ <parameter type-id='95e97e5e' name='ifindex' filepath='net/core/dev.c' line='811' column='1'/>
+ <return type-id='68a2d05b'/>
+ </function-decl>
+ <function-decl name='dev_get_by_index_rcu' mangled-name='dev_get_by_index_rcu' filepath='net/core/dev.c' line='835' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_get_by_index_rcu'>
+ <parameter type-id='a2bff676' name='net' filepath='net/core/dev.c' line='835' column='1'/>
+ <parameter type-id='95e97e5e' name='ifindex' filepath='net/core/dev.c' line='835' column='1'/>
+ <return type-id='68a2d05b'/>
+ </function-decl>
+ <function-decl name='dev_alloc_name' mangled-name='dev_alloc_name' filepath='net/core/dev.c' line='1135' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_alloc_name'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='1135' column='1'/>
+ <parameter type-id='80f4b756' name='name' filepath='net/core/dev.c' line='1135' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='netdev_notify_peers' mangled-name='netdev_notify_peers' filepath='net/core/dev.c' line='1366' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_notify_peers'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='1366' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='dev_open' mangled-name='dev_open' filepath='net/core/dev.c' line='1430' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_open'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='1430' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='dev_close' mangled-name='dev_close' filepath='net/core/dev.c' line='1530' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_close'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='1530' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='__netif_set_xps_queue' mangled-name='__netif_set_xps_queue' filepath='net/core/dev.c' line='2295' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__netif_set_xps_queue'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='2295' column='1'/>
+ <parameter type-id='f9b37274' name='mask' filepath='net/core/dev.c' line='2295' column='1'/>
+ <parameter type-id='1dc6a898' name='index' filepath='net/core/dev.c' line='2296' column='1'/>
+ <parameter type-id='b50a4934' name='is_rxqs_map' filepath='net/core/dev.c' line='2296' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='__dev_kfree_skb_any' mangled-name='__dev_kfree_skb_any' filepath='net/core/dev.c' line='2791' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__dev_kfree_skb_any'>
+ <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/dev.c' line='2791' column='1'/>
+ <parameter type-id='1f17c6b4' name='reason' filepath='net/core/dev.c' line='2791' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='passthru_features_check' mangled-name='passthru_features_check' filepath='net/core/dev.c' line='3167' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='passthru_features_check'>
+ <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/dev.c' line='3167' column='1'/>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='3168' column='1'/>
+ <parameter type-id='f9f4b16f' name='features' filepath='net/core/dev.c' line='3169' column='1'/>
+ <return type-id='f9f4b16f'/>
+ </function-decl>
+ <function-decl name='netif_rx_ni' mangled-name='netif_rx_ni' filepath='net/core/dev.c' line='4520' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_rx_ni'>
+ <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/dev.c' line='4520' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='dev_queue_xmit' mangled-name='dev_queue_xmit' filepath='net/core/dev.c' line='3869' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_queue_xmit'>
+ <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/dev.c' line='3869' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='netdev_rx_handler_register' mangled-name='netdev_rx_handler_register' filepath='net/core/dev.c' line='4696' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_rx_handler_register'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='4696' column='1'/>
+ <parameter type-id='da1cb816' name='rx_handler' filepath='net/core/dev.c' line='4697' column='1'/>
+ <parameter type-id='eaa32e2f' name='rx_handler_data' filepath='net/core/dev.c' line='4698' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='napi_gro_flush' mangled-name='napi_gro_flush' filepath='net/core/dev.c' line='5345' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='napi_gro_flush'>
+ <parameter type-id='c50361c5' name='napi' filepath='net/core/dev.c' line='5345' column='1'/>
+ <parameter type-id='b50a4934' name='flush_old' filepath='net/core/dev.c' line='5345' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='__napi_schedule' mangled-name='__napi_schedule' filepath='net/core/dev.c' line='5891' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__napi_schedule'>
+ <parameter type-id='c50361c5' name='n' filepath='net/core/dev.c' line='5891' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='get_current_napi_context' mangled-name='get_current_napi_context' filepath='net/core/dev.c' line='6267' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_current_napi_context'>
+ <return type-id='c50361c5'/>
+ </function-decl>
+ <function-decl name='netdev_upper_dev_link' mangled-name='netdev_upper_dev_link' filepath='net/core/dev.c' line='7229' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_upper_dev_link'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='7229' column='1'/>
+ <parameter type-id='68a2d05b' name='upper_dev' filepath='net/core/dev.c' line='7230' column='1'/>
+ <parameter type-id='5799dc94' name='extack' filepath='net/core/dev.c' line='7231' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='netdev_master_upper_dev_link' mangled-name='netdev_master_upper_dev_link' filepath='net/core/dev.c' line='7252' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_master_upper_dev_link'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='7252' column='1'/>
+ <parameter type-id='68a2d05b' name='upper_dev' filepath='net/core/dev.c' line='7253' column='1'/>
+ <parameter type-id='eaa32e2f' name='upper_priv' filepath='net/core/dev.c' line='7254' column='1'/>
+ <parameter type-id='eaa32e2f' name='upper_info' filepath='net/core/dev.c' line='7254' column='1'/>
+ <parameter type-id='5799dc94' name='extack' filepath='net/core/dev.c' line='7255' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='dev_set_mtu' mangled-name='dev_set_mtu' filepath='net/core/dev.c' line='7851' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_set_mtu'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='7851' column='1'/>
+ <parameter type-id='95e97e5e' name='new_mtu' filepath='net/core/dev.c' line='7851' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='netdev_change_features' mangled-name='netdev_change_features' filepath='net/core/dev.c' line='8504' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_change_features'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='8504' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='netif_stacked_transfer_operstate' mangled-name='netif_stacked_transfer_operstate' filepath='net/core/dev.c' line='8520' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_stacked_transfer_operstate'>
+ <parameter type-id='2ce52478' name='rootdev' filepath='net/core/dev.c' line='8520' column='1'/>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='8521' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='init_dummy_netdev' mangled-name='init_dummy_netdev' filepath='net/core/dev.c' line='8823' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='init_dummy_netdev'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='8823' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='dev_get_stats' mangled-name='dev_get_stats' filepath='net/core/dev.c' line='9071' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_get_stats'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='9071' column='1'/>
+ <parameter type-id='bd3860fe' name='storage' filepath='net/core/dev.c' line='9072' column='1'/>
+ <return type-id='bd3860fe'/>
+ </function-decl>
+ <function-decl name='netdev_increment_features' mangled-name='netdev_increment_features' filepath='net/core/dev.c' line='9567' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_increment_features'>
+ <parameter type-id='f9f4b16f' name='all' filepath='net/core/dev.c' line='9567' column='1'/>
+ <parameter type-id='f9f4b16f' name='one' filepath='net/core/dev.c' line='9568' column='1'/>
+ <parameter type-id='f9f4b16f' name='mask' filepath='net/core/dev.c' line='9568' column='1'/>
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+ <function-decl name='skb_add_rx_frag' mangled-name='skb_add_rx_frag' filepath='net/core/skbuff.c' line='515' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_add_rx_frag'>
+ <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/skbuff.c' line='515' column='1'/>
+ <parameter type-id='95e97e5e' name='i' filepath='net/core/skbuff.c' line='515' column='1'/>
+ <parameter type-id='02f11ed4' name='page' filepath='net/core/skbuff.c' line='515' column='1'/>
+ <parameter type-id='95e97e5e' name='off' filepath='net/core/skbuff.c' line='515' column='1'/>
+ <parameter type-id='95e97e5e' name='size' filepath='net/core/skbuff.c' line='516' column='1'/>
+ <parameter type-id='f0981eeb' name='truesize' filepath='net/core/skbuff.c' line='516' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='skb_coalesce_rx_frag' mangled-name='skb_coalesce_rx_frag' filepath='net/core/skbuff.c' line='525' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_coalesce_rx_frag'>
+ <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/skbuff.c' line='525' column='1'/>
+ <parameter type-id='95e97e5e' name='i' filepath='net/core/skbuff.c' line='525' column='1'/>
+ <parameter type-id='95e97e5e' name='size' filepath='net/core/skbuff.c' line='525' column='1'/>
+ <parameter type-id='f0981eeb' name='truesize' filepath='net/core/skbuff.c' line='526' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='napi_consume_skb' mangled-name='napi_consume_skb' filepath='net/core/skbuff.c' line='771' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='napi_consume_skb'>
+ <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/skbuff.c' line='771' column='1'/>
+ <parameter type-id='95e97e5e' name='budget' filepath='net/core/skbuff.c' line='771' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='___pskb_trim' mangled-name='___pskb_trim' filepath='net/core/skbuff.c' line='1770' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='___pskb_trim'>
+ <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/skbuff.c' line='1770' column='1'/>
+ <parameter type-id='f0981eeb' name='len' filepath='net/core/skbuff.c' line='1770' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='__pskb_pull_tail' mangled-name='__pskb_pull_tail' filepath='net/core/skbuff.c' line='1901' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__pskb_pull_tail'>
+ <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/skbuff.c' line='1901' column='1'/>
+ <parameter type-id='95e97e5e' name='delta' filepath='net/core/skbuff.c' line='1901' column='1'/>
+ <return type-id='eaa32e2f'/>
+ </function-decl>
+ <function-decl name='__skb_pad' mangled-name='__skb_pad' filepath='net/core/skbuff.c' line='1637' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__skb_pad'>
+ <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/skbuff.c' line='1637' column='1'/>
+ <parameter type-id='95e97e5e' name='pad' filepath='net/core/skbuff.c' line='1637' column='1'/>
+ <parameter type-id='b50a4934' name='free_on_error' filepath='net/core/skbuff.c' line='1637' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='skb_condense' mangled-name='skb_condense' filepath='net/core/skbuff.c' line='5626' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_condense'>
+ <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/skbuff.c' line='5626' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='__skb_checksum' mangled-name='__skb_checksum' filepath='net/core/skbuff.c' line='2492' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__skb_checksum'>
+ <parameter type-id='11f4a000' name='skb' filepath='net/core/skbuff.c' line='2492' column='1'/>
+ <parameter type-id='95e97e5e' name='offset' filepath='net/core/skbuff.c' line='2492' column='1'/>
+ <parameter type-id='95e97e5e' name='len' filepath='net/core/skbuff.c' line='2492' column='1'/>
+ <parameter type-id='fbd88bba' name='csum' filepath='net/core/skbuff.c' line='2493' column='1'/>
+ <parameter type-id='fdc951a9' name='ops' filepath='net/core/skbuff.c' line='2493' column='1'/>
+ <return type-id='fbd88bba'/>
+ </function-decl>
+ <function-decl name='skb_store_bits' mangled-name='skb_store_bits' filepath='net/core/skbuff.c' line='2414' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_store_bits'>
+ <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/skbuff.c' line='2414' column='1'/>
+ <parameter type-id='95e97e5e' name='offset' filepath='net/core/skbuff.c' line='2414' column='1'/>
+ <parameter type-id='eaa32e2f' name='from' filepath='net/core/skbuff.c' line='2414' column='1'/>
+ <parameter type-id='95e97e5e' name='len' filepath='net/core/skbuff.c' line='2414' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='skb_append_pagefrags' mangled-name='skb_append_pagefrags' filepath='net/core/skbuff.c' line='3478' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_append_pagefrags'>
+ <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/skbuff.c' line='3478' column='1'/>
+ <parameter type-id='02f11ed4' name='page' filepath='net/core/skbuff.c' line='3478' column='1'/>
+ <parameter type-id='95e97e5e' name='offset' filepath='net/core/skbuff.c' line='3479' column='1'/>
+ <parameter type-id='b59d7dce' name='size' filepath='net/core/skbuff.c' line='3479' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='skb_segment' mangled-name='skb_segment' filepath='net/core/skbuff.c' line='3540' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_segment'>
+ <parameter type-id='0fbf3cfd' name='head_skb' filepath='net/core/skbuff.c' line='3540' column='1'/>
+ <parameter type-id='f9f4b16f' name='features' filepath='net/core/skbuff.c' line='3541' column='1'/>
+ <return type-id='0fbf3cfd'/>
+ </function-decl>
+ <function-type size-in-bits='64' id='dcab33c7'>
+ <parameter type-id='fbd88bba'/>
+ <parameter type-id='fbd88bba'/>
+ <parameter type-id='95e97e5e'/>
+ <parameter type-id='95e97e5e'/>
+ <return type-id='fbd88bba'/>
+ </function-type>
+ <function-type size-in-bits='64' id='e838bda3'>
+ <parameter type-id='eaa32e2f'/>
+ <parameter type-id='95e97e5e'/>
+ <parameter type-id='fbd88bba'/>
+ <return type-id='fbd88bba'/>
+ </function-type>
+ </abi-instr>
+ <abi-instr address-size='64' path='net/core/sock.c' language='LANG_C89'>
+ <pointer-type-def type-id='2a693ac3' size-in-bits='64' id='896f1b83'/>
+ <function-decl name='net_enable_timestamp' mangled-name='net_enable_timestamp' filepath='include/linux/netdevice.h' line='4378' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='net_enable_timestamp'>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='sock_wfree' mangled-name='sock_wfree' filepath='net/core/sock.c' line='1806' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_wfree'>
+ <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/sock.c' line='1806' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='alloc_skb_with_frags' mangled-name='alloc_skb_with_frags' filepath='include/linux/skbuff.h' line='998' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='alloc_skb_with_frags'>
+ <parameter type-id='7359adad'/>
+ <parameter type-id='7359adad'/>
+ <parameter type-id='95e97e5e'/>
+ <parameter type-id='7292109c'/>
+ <parameter type-id='f0981eeb'/>
+ <return type-id='0fbf3cfd'/>
+ </function-decl>
+ <function-decl name='sock_alloc_send_skb' mangled-name='sock_alloc_send_skb' filepath='net/core/sock.c' line='2104' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_alloc_send_skb'>
+ <parameter type-id='f772df6d' name='sk' filepath='net/core/sock.c' line='2104' column='1'/>
+ <parameter type-id='7359adad' name='size' filepath='net/core/sock.c' line='2104' column='1'/>
+ <parameter type-id='95e97e5e' name='noblock' filepath='net/core/sock.c' line='2105' column='1'/>
+ <parameter type-id='7292109c' name='errcode' filepath='net/core/sock.c' line='2105' column='1'/>
+ <return type-id='0fbf3cfd'/>
+ </function-decl>
+ <function-decl name='__sk_mem_schedule' mangled-name='__sk_mem_schedule' filepath='net/core/sock.c' line='2489' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__sk_mem_schedule'>
+ <parameter type-id='f772df6d' name='sk' filepath='net/core/sock.c' line='2489' column='1'/>
+ <parameter type-id='95e97e5e' name='size' filepath='net/core/sock.c' line='2489' column='1'/>
+ <parameter type-id='95e97e5e' name='kind' filepath='net/core/sock.c' line='2489' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='__sk_mem_reclaim' mangled-name='__sk_mem_reclaim' filepath='net/core/sock.c' line='2526' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__sk_mem_reclaim'>
+ <parameter type-id='f772df6d' name='sk' filepath='net/core/sock.c' line='2526' column='1'/>
+ <parameter type-id='95e97e5e' name='amount' filepath='net/core/sock.c' line='2526' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='sock_no_socketpair' mangled-name='sock_no_socketpair' filepath='net/core/sock.c' line='2561' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_no_socketpair'>
+ <parameter type-id='13103032' name='sock1' filepath='net/core/sock.c' line='2561' column='1'/>
+ <parameter type-id='13103032' name='sock2' filepath='net/core/sock.c' line='2561' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='sock_no_accept' mangled-name='sock_no_accept' filepath='net/core/sock.c' line='2567' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_no_accept'>
+ <parameter type-id='13103032' name='sock' filepath='net/core/sock.c' line='2567' column='1'/>
+ <parameter type-id='13103032' name='newsock' filepath='net/core/sock.c' line='2567' column='1'/>
+ <parameter type-id='95e97e5e' name='flags' filepath='net/core/sock.c' line='2567' column='1'/>
+ <parameter type-id='b50a4934' name='kern' filepath='net/core/sock.c' line='2568' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='sock_no_ioctl' mangled-name='sock_no_ioctl' filepath='net/core/sock.c' line='2581' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_no_ioctl'>
+ <parameter type-id='13103032' name='sock' filepath='net/core/sock.c' line='2581' column='1'/>
+ <parameter type-id='f0981eeb' name='cmd' filepath='net/core/sock.c' line='2581' column='1'/>
+ <parameter type-id='7359adad' name='arg' filepath='net/core/sock.c' line='2581' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='sock_no_listen' mangled-name='sock_no_listen' filepath='net/core/sock.c' line='2587' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_no_listen'>
+ <parameter type-id='13103032' name='sock' filepath='net/core/sock.c' line='2587' column='1'/>
+ <parameter type-id='95e97e5e' name='backlog' filepath='net/core/sock.c' line='2587' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='sock_no_shutdown' mangled-name='sock_no_shutdown' filepath='net/core/sock.c' line='2593' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_no_shutdown'>
+ <parameter type-id='13103032' name='sock' filepath='net/core/sock.c' line='2593' column='1'/>
+ <parameter type-id='95e97e5e' name='how' filepath='net/core/sock.c' line='2593' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='sock_no_setsockopt' mangled-name='sock_no_setsockopt' filepath='net/core/sock.c' line='2599' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_no_setsockopt'>
+ <parameter type-id='13103032' name='sock' filepath='net/core/sock.c' line='2599' column='1'/>
+ <parameter type-id='95e97e5e' name='level' filepath='net/core/sock.c' line='2599' column='1'/>
+ <parameter type-id='95e97e5e' name='optname' filepath='net/core/sock.c' line='2599' column='1'/>
+ <parameter type-id='26a90f95' name='optval' filepath='net/core/sock.c' line='2600' column='1'/>
+ <parameter type-id='f0981eeb' name='optlen' filepath='net/core/sock.c' line='2600' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='sock_no_getsockopt' mangled-name='sock_no_getsockopt' filepath='net/core/sock.c' line='2606' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_no_getsockopt'>
+ <parameter type-id='13103032' name='sock' filepath='net/core/sock.c' line='2606' column='1'/>
+ <parameter type-id='95e97e5e' name='level' filepath='net/core/sock.c' line='2606' column='1'/>
+ <parameter type-id='95e97e5e' name='optname' filepath='net/core/sock.c' line='2606' column='1'/>
+ <parameter type-id='26a90f95' name='optval' filepath='net/core/sock.c' line='2607' column='1'/>
+ <parameter type-id='7292109c' name='optlen' filepath='net/core/sock.c' line='2607' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='sock_no_mmap' mangled-name='sock_no_mmap' filepath='net/core/sock.c' line='2632' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_no_mmap'>
+ <parameter type-id='77e79a4b' name='file' filepath='net/core/sock.c' line='2632' column='1'/>
+ <parameter type-id='13103032' name='sock' filepath='net/core/sock.c' line='2632' column='1'/>
+ <parameter type-id='2ae08426' name='vma' filepath='net/core/sock.c' line='2632' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='sock_get_timestamp' mangled-name='sock_get_timestamp' filepath='net/core/sock.c' line='2932' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_get_timestamp'>
+ <parameter type-id='f772df6d' name='sk' filepath='net/core/sock.c' line='2932' column='1'/>
+ <parameter type-id='896f1b83' name='userstamp' filepath='net/core/sock.c' line='2932' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='sock_common_getsockopt' mangled-name='sock_common_getsockopt' filepath='net/core/sock.c' line='3026' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_common_getsockopt'>
+ <parameter type-id='13103032' name='sock' filepath='net/core/sock.c' line='3026' column='1'/>
+ <parameter type-id='95e97e5e' name='level' filepath='net/core/sock.c' line='3026' column='1'/>
+ <parameter type-id='95e97e5e' name='optname' filepath='net/core/sock.c' line='3026' column='1'/>
+ <parameter type-id='26a90f95' name='optval' filepath='net/core/sock.c' line='3027' column='1'/>
+ <parameter type-id='7292109c' name='optlen' filepath='net/core/sock.c' line='3027' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='compat_sock_common_getsockopt' mangled-name='compat_sock_common_getsockopt' filepath='net/core/sock.c' line='3036' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='compat_sock_common_getsockopt'>
+ <parameter type-id='13103032' name='sock' filepath='net/core/sock.c' line='3036' column='1'/>
+ <parameter type-id='95e97e5e' name='level' filepath='net/core/sock.c' line='3036' column='1'/>
+ <parameter type-id='95e97e5e' name='optname' filepath='net/core/sock.c' line='3036' column='1'/>
+ <parameter type-id='26a90f95' name='optval' filepath='net/core/sock.c' line='3037' column='1'/>
+ <parameter type-id='7292109c' name='optlen' filepath='net/core/sock.c' line='3037' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='sock_common_setsockopt' mangled-name='sock_common_setsockopt' filepath='net/core/sock.c' line='3067' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_common_setsockopt'>
+ <parameter type-id='13103032' name='sock' filepath='net/core/sock.c' line='3067' column='1'/>
+ <parameter type-id='95e97e5e' name='level' filepath='net/core/sock.c' line='3067' column='1'/>
+ <parameter type-id='95e97e5e' name='optname' filepath='net/core/sock.c' line='3067' column='1'/>
+ <parameter type-id='26a90f95' name='optval' filepath='net/core/sock.c' line='3068' column='1'/>
+ <parameter type-id='f0981eeb' name='optlen' filepath='net/core/sock.c' line='3068' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='compat_sock_common_setsockopt' mangled-name='compat_sock_common_setsockopt' filepath='net/core/sock.c' line='3077' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='compat_sock_common_setsockopt'>
+ <parameter type-id='13103032' name='sock' filepath='net/core/sock.c' line='3077' column='1'/>
+ <parameter type-id='95e97e5e' name='level' filepath='net/core/sock.c' line='3077' column='1'/>
+ <parameter type-id='95e97e5e' name='optname' filepath='net/core/sock.c' line='3077' column='1'/>
+ <parameter type-id='26a90f95' name='optval' filepath='net/core/sock.c' line='3078' column='1'/>
+ <parameter type-id='f0981eeb' name='optlen' filepath='net/core/sock.c' line='3078' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='sk_common_release' mangled-name='sk_common_release' filepath='net/core/sock.c' line='3090' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sk_common_release'>
+ <parameter type-id='f772df6d' name='sk' filepath='net/core/sock.c' line='3090' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='sock_prot_inuse_add' mangled-name='sock_prot_inuse_add' filepath='net/core/sock.c' line='3150' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_prot_inuse_add'>
+ <parameter type-id='a2bff676' name='net' filepath='net/core/sock.c' line='3150' column='1'/>
+ <parameter type-id='d2524501' name='prot' filepath='net/core/sock.c' line='3150' column='1'/>
+ <parameter type-id='95e97e5e' name='val' filepath='net/core/sock.c' line='3150' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='sk_busy_loop_end' mangled-name='sk_busy_loop_end' filepath='net/core/sock.c' line='3509' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sk_busy_loop_end'>
+ <parameter type-id='eaa32e2f' name='p' filepath='net/core/sock.c' line='3509' column='1'/>
+ <parameter type-id='7359adad' name='start_time' filepath='net/core/sock.c' line='3509' column='1'/>
+ <return type-id='b50a4934'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='net/ethernet/eth.c' language='LANG_C89'>
+ <function-decl name='eth_prepare_mac_addr_change' mangled-name='eth_prepare_mac_addr_change' filepath='net/ethernet/eth.c' line='274' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eth_prepare_mac_addr_change'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/ethernet/eth.c' line='274' column='1'/>
+ <parameter type-id='eaa32e2f' name='p' filepath='net/ethernet/eth.c' line='274' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='eth_commit_mac_addr_change' mangled-name='eth_commit_mac_addr_change' filepath='net/ethernet/eth.c' line='291' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eth_commit_mac_addr_change'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/ethernet/eth.c' line='291' column='1'/>
+ <parameter type-id='eaa32e2f' name='p' filepath='net/ethernet/eth.c' line='291' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='eth_mac_addr' mangled-name='eth_mac_addr' filepath='net/ethernet/eth.c' line='309' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eth_mac_addr'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/ethernet/eth.c' line='309' column='1'/>
+ <parameter type-id='eaa32e2f' name='p' filepath='net/ethernet/eth.c' line='309' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='eth_validate_addr' mangled-name='eth_validate_addr' filepath='net/ethernet/eth.c' line='337' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eth_validate_addr'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/ethernet/eth.c' line='337' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='net/ipv4/af_inet.c' language='LANG_C89'>
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+ <parameter type-id='13103032' name='sock' filepath='net/ipv4/af_inet.c' line='406' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
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+ <parameter type-id='13103032' name='sock' filepath='net/ipv4/af_inet.c' line='434' column='1'/>
+ <parameter type-id='5c0abad8' name='uaddr' filepath='net/ipv4/af_inet.c' line='434' column='1'/>
+ <parameter type-id='95e97e5e' name='addr_len' filepath='net/ipv4/af_inet.c' line='434' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
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+ <parameter type-id='13103032' name='sock' filepath='net/ipv4/af_inet.c' line='729' column='1'/>
+ <parameter type-id='13103032' name='newsock' filepath='net/ipv4/af_inet.c' line='729' column='1'/>
+ <parameter type-id='95e97e5e' name='flags' filepath='net/ipv4/af_inet.c' line='729' column='1'/>
+ <parameter type-id='b50a4934' name='kern' filepath='net/ipv4/af_inet.c' line='730' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
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+ <parameter type-id='13103032' name='sock' filepath='net/ipv4/af_inet.c' line='760' column='1'/>
+ <parameter type-id='5c0abad8' name='uaddr' filepath='net/ipv4/af_inet.c' line='760' column='1'/>
+ <parameter type-id='95e97e5e' name='peer' filepath='net/ipv4/af_inet.c' line='761' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='inet_sendmsg' mangled-name='inet_sendmsg' filepath='net/ipv4/af_inet.c' line='787' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='inet_sendmsg'>
+ <parameter type-id='13103032' name='sock' filepath='net/ipv4/af_inet.c' line='787' column='1'/>
+ <parameter type-id='6b9b777a' name='msg' filepath='net/ipv4/af_inet.c' line='787' column='1'/>
+ <parameter type-id='b59d7dce' name='size' filepath='net/ipv4/af_inet.c' line='787' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='inet_recvmsg' mangled-name='inet_recvmsg' filepath='net/ipv4/af_inet.c' line='820' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='inet_recvmsg'>
+ <parameter type-id='13103032' name='sock' filepath='net/ipv4/af_inet.c' line='820' column='1'/>
+ <parameter type-id='6b9b777a' name='msg' filepath='net/ipv4/af_inet.c' line='820' column='1'/>
+ <parameter type-id='b59d7dce' name='size' filepath='net/ipv4/af_inet.c' line='820' column='1'/>
+ <parameter type-id='95e97e5e' name='flags' filepath='net/ipv4/af_inet.c' line='821' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='inet_shutdown' mangled-name='inet_shutdown' filepath='net/ipv4/af_inet.c' line='838' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='inet_shutdown'>
+ <parameter type-id='13103032' name='sock' filepath='net/ipv4/af_inet.c' line='838' column='1'/>
+ <parameter type-id='95e97e5e' name='how' filepath='net/ipv4/af_inet.c' line='838' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='inet_ioctl' mangled-name='inet_ioctl' filepath='net/ipv4/af_inet.c' line='904' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='inet_ioctl'>
+ <parameter type-id='13103032' name='sock' filepath='net/ipv4/af_inet.c' line='904' column='1'/>
+ <parameter type-id='f0981eeb' name='cmd' filepath='net/ipv4/af_inet.c' line='904' column='1'/>
+ <parameter type-id='7359adad' name='arg' filepath='net/ipv4/af_inet.c' line='904' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
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+ <parameter type-id='a976bab6' name='p' filepath='net/ipv4/af_inet.c' line='1167' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
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+ <parameter type-id='eaa32e2f' name='mib' filepath='net/ipv4/af_inet.c' line='1620' column='1'/>
+ <parameter type-id='95e97e5e' name='cpu' filepath='net/ipv4/af_inet.c' line='1620' column='1'/>
+ <parameter type-id='95e97e5e' name='offt' filepath='net/ipv4/af_inet.c' line='1620' column='1'/>
+ <return type-id='91ce1af9'/>
+ </function-decl>
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+ </data-member>
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+ </abi-instr>
+ <abi-instr address-size='64' path='net/ipv4/devinet.c' language='LANG_C89'>
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+ <parameter type-id='a2bff676' name='net' filepath='net/ipv4/devinet.c' line='144' column='1'/>
+ <parameter type-id='78a133c2' name='addr' filepath='net/ipv4/devinet.c' line='144' column='1'/>
+ <parameter type-id='b50a4934' name='devref' filepath='net/ipv4/devinet.c' line='144' column='1'/>
+ <return type-id='68a2d05b'/>
+ </function-decl>
+ <function-decl name='register_inetaddr_notifier' mangled-name='register_inetaddr_notifier' filepath='net/ipv4/devinet.c' line='1396' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_inetaddr_notifier'>
+ <parameter type-id='d504f73d' name='nb' filepath='net/ipv4/devinet.c' line='1396' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='unregister_inetaddr_notifier' mangled-name='unregister_inetaddr_notifier' filepath='net/ipv4/devinet.c' line='1402' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_inetaddr_notifier'>
+ <parameter type-id='d504f73d' name='nb' filepath='net/ipv4/devinet.c' line='1402' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
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+ </data-member>
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+ <pointer-type-def type-id='4ecf1c6a' size-in-bits='64' id='c256a724'/>
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+ <parameter type-id='9f4c3c41'/>
+ <parameter type-id='002ac4a6'/>
+ <return type-id='95e97e5e'/>
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+ <parameter type-id='9f4c3c41'/>
+ <parameter type-id='002ac4a6'/>
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+ <parameter type-id='9f4c3c41'/>
+ <parameter type-id='002ac4a6'/>
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+ <parameter type-id='eaa32e2f'/>
+ <parameter type-id='95e97e5e'/>
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+ <parameter type-id='11f4a000'/>
+ <parameter type-id='95e97e5e'/>
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+ <abi-instr address-size='64' path='net/ipv4/icmp.c' language='LANG_C89'>
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+ <data-member access='public' layout-offset-in-bits='0'>
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+ </abi-instr>
+ <abi-instr address-size='64' path='net/ipv4/inet_diag.c' language='LANG_C89'>
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+ <return type-id='48b5725f'/>
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+ <function-decl name='inet_diag_msg_attrs_fill' mangled-name='inet_diag_msg_attrs_fill' filepath='net/ipv4/inet_diag.c' line='117' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='inet_diag_msg_attrs_fill'>
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+ <parameter type-id='c0ced320' name='user_ns' filepath='net/ipv4/inet_diag.c' line='119' column='1'/>
+ <parameter type-id='b50a4934' name='net_admin' filepath='net/ipv4/inet_diag.c' line='120' column='1'/>
+ <return type-id='95e97e5e'/>
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+ <abi-instr address-size='64' path='net/ipv4/udp.c' language='LANG_C89'>
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+ <parameter type-id='f772df6d'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='net/ipv4/udp_diag.c' language='LANG_C89'>
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+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='head' type-id='e151255a' visibility='default' filepath='include/net/udp.h' line='62' column='1'/>
+ </data-member>
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+ <var-decl name='count' type-id='95e97e5e' visibility='default' filepath='include/net/udp.h' line='63' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='96'>
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+ </data-member>
+ </class-decl>
+ <pointer-type-def type-id='fa07ab8f' size-in-bits='64' id='9cc41107'/>
+ <function-decl name='sock_diag_check_cookie' mangled-name='sock_diag_check_cookie' filepath='include/linux/sock_diag.h' line='29' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_diag_check_cookie'>
+ <parameter type-id='f772df6d'/>
+ <parameter type-id='5b2fd8e8'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='netlink_net_capable' mangled-name='netlink_net_capable' filepath='include/linux/netlink.h' line='230' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netlink_net_capable'>
+ <parameter type-id='11f4a000'/>
+ <parameter type-id='95e97e5e'/>
+ <return type-id='c894953d'/>
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+ </abi-instr>
+ <abi-instr address-size='64' path='net/ipv4/udplite.c' language='LANG_C89'>
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+ <data-member access='public' layout-offset-in-bits='0'>
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+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
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+ </data-member>
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+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
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+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
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+ </data-member>
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+ </data-member>
+ </class-decl>
+ <pointer-type-def type-id='6a4401f0' size-in-bits='64' id='a976bab6'/>
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+ <parameter type-id='a976bab6'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='net/ipv6/addrconf.c' language='LANG_C89'>
+ <function-decl name='in6_dev_finish_destroy' mangled-name='in6_dev_finish_destroy' filepath='include/net/addrconf.h' line='396' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='in6_dev_finish_destroy'>
+ <parameter type-id='f026b16b'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
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+ <parameter type-id='a2bff676' name='net' filepath='net/ipv6/addrconf.c' line='1840' column='1'/>
+ <parameter type-id='fea9c20b' name='addr' filepath='net/ipv6/addrconf.c' line='1840' column='1'/>
+ <parameter type-id='2ce52478' name='dev' filepath='net/ipv6/addrconf.c' line='1841' column='1'/>
+ <parameter type-id='95e97e5e' name='strict' filepath='net/ipv6/addrconf.c' line='1841' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='net/ipv6/addrconf_core.c' language='LANG_C89'>
+ <function-decl name='__ipv6_addr_type' mangled-name='__ipv6_addr_type' filepath='net/ipv6/addrconf_core.c' line='36' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__ipv6_addr_type'>
+ <parameter type-id='fea9c20b' name='addr' filepath='net/ipv6/addrconf_core.c' line='36' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='register_inet6addr_notifier' mangled-name='register_inet6addr_notifier' filepath='net/ipv6/addrconf_core.c' line='93' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_inet6addr_notifier'>
+ <parameter type-id='d504f73d' name='nb' filepath='net/ipv6/addrconf_core.c' line='93' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='unregister_inet6addr_notifier' mangled-name='unregister_inet6addr_notifier' filepath='net/ipv6/addrconf_core.c' line='99' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_inet6addr_notifier'>
+ <parameter type-id='d504f73d' name='nb' filepath='net/ipv6/addrconf_core.c' line='99' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='net/ipv6/af_inet6.c' language='LANG_C89'>
+ <class-decl name='ipv6_txoptions' size-in-bits='512' is-struct='yes' visibility='default' filepath='include/net/ipv6.h' line='247' column='1' id='03e12711'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='refcnt' type-id='64615833' visibility='default' filepath='include/net/ipv6.h' line='248' column='1'/>
+ </data-member>
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+ <var-decl name='tot_len' type-id='95e97e5e' visibility='default' filepath='include/net/ipv6.h' line='250' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='opt_flen' type-id='d315442e' visibility='default' filepath='include/net/ipv6.h' line='254' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='80'>
+ <var-decl name='opt_nflen' type-id='d315442e' visibility='default' filepath='include/net/ipv6.h' line='255' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='hopopt' type-id='edff578b' visibility='default' filepath='include/net/ipv6.h' line='257' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='dst0opt' type-id='edff578b' visibility='default' filepath='include/net/ipv6.h' line='258' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='srcrt' type-id='40629354' visibility='default' filepath='include/net/ipv6.h' line='259' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='320'>
+ <var-decl name='dst1opt' type-id='edff578b' visibility='default' filepath='include/net/ipv6.h' line='260' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='384'>
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+ </data-member>
+ </class-decl>
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+ <data-member access='public' layout-offset-in-bits='0'>
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+ </data-member>
+ <data-member access='public' layout-offset-in-bits='8'>
+ <var-decl name='hdrlen' type-id='8f048e17' visibility='default' filepath='include/uapi/linux/ipv6.h' line='63' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='ipv6_rt_hdr' size-in-bits='32' is-struct='yes' visibility='default' filepath='include/uapi/linux/ipv6.h' line='48' column='1' id='0eae882e'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='nexthdr' type-id='8f048e17' visibility='default' filepath='include/uapi/linux/ipv6.h' line='49' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='8'>
+ <var-decl name='hdrlen' type-id='8f048e17' visibility='default' filepath='include/uapi/linux/ipv6.h' line='50' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='16'>
+ <var-decl name='type' type-id='8f048e17' visibility='default' filepath='include/uapi/linux/ipv6.h' line='51' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='24'>
+ <var-decl name='segments_left' type-id='8f048e17' visibility='default' filepath='include/uapi/linux/ipv6.h' line='52' column='1'/>
+ </data-member>
+ </class-decl>
+ <qualified-type-def type-id='03e12711' const='yes' id='cdd0c59c'/>
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+ <pointer-type-def type-id='618f2f7e' size-in-bits='64' id='a99cde64'/>
+ <pointer-type-def type-id='5510bbdb' size-in-bits='64' id='edff578b'/>
+ <pointer-type-def type-id='0eae882e' size-in-bits='64' id='40629354'/>
+ <function-decl name='inet6_bind' mangled-name='inet6_bind' filepath='net/ipv6/af_inet6.c' line='436' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='inet6_bind'>
+ <parameter type-id='13103032' name='sock' filepath='net/ipv6/af_inet6.c' line='436' column='1'/>
+ <parameter type-id='5c0abad8' name='uaddr' filepath='net/ipv6/af_inet6.c' line='436' column='1'/>
+ <parameter type-id='95e97e5e' name='addr_len' filepath='net/ipv6/af_inet6.c' line='436' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='inet6_release' mangled-name='inet6_release' filepath='net/ipv6/af_inet6.c' line='459' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='inet6_release'>
+ <parameter type-id='13103032' name='sock' filepath='net/ipv6/af_inet6.c' line='459' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='inet6_destroy_sock' mangled-name='inet6_destroy_sock' filepath='net/ipv6/af_inet6.c' line='476' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='inet6_destroy_sock'>
+ <parameter type-id='f772df6d' name='sk' filepath='net/ipv6/af_inet6.c' line='476' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='inet6_getname' mangled-name='inet6_getname' filepath='net/ipv6/af_inet6.c' line='509' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='inet6_getname'>
+ <parameter type-id='13103032' name='sock' filepath='net/ipv6/af_inet6.c' line='509' column='1'/>
+ <parameter type-id='5c0abad8' name='uaddr' filepath='net/ipv6/af_inet6.c' line='509' column='1'/>
+ <parameter type-id='95e97e5e' name='peer' filepath='net/ipv6/af_inet6.c' line='510' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='inet6_ioctl' mangled-name='inet6_ioctl' filepath='net/ipv6/af_inet6.c' line='544' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='inet6_ioctl'>
+ <parameter type-id='13103032' name='sock' filepath='net/ipv6/af_inet6.c' line='544' column='1'/>
+ <parameter type-id='f0981eeb' name='cmd' filepath='net/ipv6/af_inet6.c' line='544' column='1'/>
+ <parameter type-id='7359adad' name='arg' filepath='net/ipv6/af_inet6.c' line='544' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='inet6_register_protosw' mangled-name='inet6_register_protosw' filepath='net/ipv6/af_inet6.c' line='642' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='inet6_register_protosw'>
+ <parameter type-id='a976bab6' name='p' filepath='net/ipv6/af_inet6.c' line='642' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='inet6_unregister_protosw' mangled-name='inet6_unregister_protosw' filepath='net/ipv6/af_inet6.c' line='699' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='inet6_unregister_protosw'>
+ <parameter type-id='a976bab6' name='p' filepath='net/ipv6/af_inet6.c' line='699' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='fl6_update_dst' mangled-name='fl6_update_dst' filepath='include/net/ipv6.h' line='1009' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fl6_update_dst'>
+ <parameter type-id='a99cde64'/>
+ <parameter type-id='b5a73d82'/>
+ <parameter type-id='ed512028'/>
+ <return type-id='ed512028'/>
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+ <function-decl name='ip6_dst_lookup_flow' mangled-name='ip6_dst_lookup_flow' filepath='include/net/ipv6.h' line='962' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ip6_dst_lookup_flow'>
+ <parameter type-id='a2bff676'/>
+ <parameter type-id='78e7cf52'/>
+ <parameter type-id='a99cde64'/>
+ <parameter type-id='fea9c20b'/>
+ <return type-id='141b6427'/>
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+ </abi-instr>
+ <abi-instr address-size='64' path='net/ipv6/exthdrs_core.c' language='LANG_C89'>
+ <function-decl name='ipv6_ext_hdr' mangled-name='ipv6_ext_hdr' filepath='net/ipv6/exthdrs_core.c' line='12' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ipv6_ext_hdr'>
+ <parameter type-id='f9b06939' name='nexthdr' filepath='net/ipv6/exthdrs_core.c' line='12' column='1'/>
+ <return type-id='b50a4934'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='net/ipv6/ip6_output.c' language='LANG_C89'>
+ <pointer-type-def type-id='03e12711' size-in-bits='64' id='d4145729'/>
+ <function-decl name='ip6_xmit' mangled-name='ip6_xmit' filepath='net/ipv6/ip6_output.c' line='229' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ip6_xmit'>
+ <parameter type-id='78e7cf52' name='sk' filepath='net/ipv6/ip6_output.c' line='229' column='1'/>
+ <parameter type-id='0fbf3cfd' name='skb' filepath='net/ipv6/ip6_output.c' line='229' column='1'/>
+ <parameter type-id='a99cde64' name='fl6' filepath='net/ipv6/ip6_output.c' line='229' column='1'/>
+ <parameter type-id='3f1a6b60' name='mark' filepath='net/ipv6/ip6_output.c' line='230' column='1'/>
+ <parameter type-id='d4145729' name='opt' filepath='net/ipv6/ip6_output.c' line='230' column='1'/>
+ <parameter type-id='95e97e5e' name='tclass' filepath='net/ipv6/ip6_output.c' line='230' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='net/ipv6/ip6_vti.c' language='LANG_C89'>
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+ <parameter type-id='e84b031a'/>
+ <return type-id='48b5725f'/>
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+ <parameter type-id='c0ced320'/>
+ <parameter type-id='95e97e5e'/>
+ <return type-id='c894953d'/>
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+ </abi-instr>
+ <abi-instr address-size='64' path='net/ipv6/ipv6_sockglue.c' language='LANG_C89'>
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+ <parameter type-id='f772df6d' name='sk' filepath='net/ipv6/ipv6_sockglue.c' line='929' column='1'/>
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+ <parameter type-id='26a90f95' name='optval' filepath='net/ipv6/ipv6_sockglue.c' line='930' column='1'/>
+ <parameter type-id='f0981eeb' name='optlen' filepath='net/ipv6/ipv6_sockglue.c' line='930' column='1'/>
+ <return type-id='95e97e5e'/>
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+ <function-decl name='compat_ipv6_setsockopt' mangled-name='compat_ipv6_setsockopt' filepath='net/ipv6/ipv6_sockglue.c' line='952' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='compat_ipv6_setsockopt'>
+ <parameter type-id='f772df6d' name='sk' filepath='net/ipv6/ipv6_sockglue.c' line='952' column='1'/>
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+ <parameter type-id='26a90f95' name='optval' filepath='net/ipv6/ipv6_sockglue.c' line='953' column='1'/>
+ <parameter type-id='f0981eeb' name='optlen' filepath='net/ipv6/ipv6_sockglue.c' line='953' column='1'/>
+ <return type-id='95e97e5e'/>
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+ <parameter type-id='f772df6d' name='sk' filepath='net/ipv6/ipv6_sockglue.c' line='1368' column='1'/>
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+ <parameter type-id='7292109c' name='optlen' filepath='net/ipv6/ipv6_sockglue.c' line='1369' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='compat_ipv6_getsockopt' mangled-name='compat_ipv6_getsockopt' filepath='net/ipv6/ipv6_sockglue.c' line='1398' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='compat_ipv6_getsockopt'>
+ <parameter type-id='f772df6d' name='sk' filepath='net/ipv6/ipv6_sockglue.c' line='1398' column='1'/>
+ <parameter type-id='95e97e5e' name='level' filepath='net/ipv6/ipv6_sockglue.c' line='1398' column='1'/>
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+ <parameter type-id='c5b94c75' name='rfkill' filepath='net/rfkill/core.c' line='604' column='1'/>
+ <parameter type-id='b50a4934' name='blocked' filepath='net/rfkill/core.c' line='604' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='net/sched/cls_bpf.c' language='LANG_C89'>
+ <function-decl name='nla_reserve' mangled-name='nla_reserve' filepath='include/net/netlink.h' line='263' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nla_reserve'>
+ <parameter type-id='0fbf3cfd'/>
+ <parameter type-id='95e97e5e'/>
+ <parameter type-id='95e97e5e'/>
+ <return type-id='6fcaf91e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='net/sched/cls_u32.c' language='LANG_C89'>
+ <function-decl name='idr_alloc_cyclic' mangled-name='idr_alloc_cyclic' filepath='include/linux/idr.h' line='117' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_alloc_cyclic'>
+ <parameter type-id='301185b4'/>
+ <parameter type-id='eaa32e2f'/>
+ <parameter type-id='95e97e5e'/>
+ <parameter type-id='95e97e5e'/>
+ <parameter type-id='f0981eeb'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='idr_alloc_u32' mangled-name='idr_alloc_u32' filepath='include/linux/idr.h' line='115' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_alloc_u32'>
+ <parameter type-id='301185b4'/>
+ <parameter type-id='eaa32e2f'/>
+ <parameter type-id='807869d3'/>
+ <parameter type-id='7359adad'/>
+ <parameter type-id='f0981eeb'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='idr_replace' mangled-name='idr_replace' filepath='include/linux/idr.h' line='124' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_replace'>
+ <parameter type-id='301185b4'/>
+ <parameter type-id='eaa32e2f'/>
+ <parameter type-id='7359adad'/>
+ <return type-id='eaa32e2f'/>
+ </function-decl>
+ <function-decl name='refcount_inc_not_zero_checked' mangled-name='refcount_inc_not_zero_checked' filepath='include/linux/refcount.h' line='49' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='refcount_inc_not_zero_checked'>
+ <parameter type-id='74c91557'/>
+ <return type-id='c894953d'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='net/sched/sch_htb.c' language='LANG_C89'>
+ <function-decl name='nla_parse' mangled-name='nla_parse' filepath='include/net/netlink.h' line='249' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nla_parse'>
+ <parameter type-id='30864cdc'/>
+ <parameter type-id='95e97e5e'/>
+ <parameter type-id='0f2a7ce5'/>
+ <parameter type-id='95e97e5e'/>
+ <parameter type-id='109cdb66'/>
+ <parameter type-id='5799dc94'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='qdisc_reset' mangled-name='qdisc_reset' filepath='include/net/sch_generic.h' line='557' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='qdisc_reset'>
+ <parameter type-id='ee406209'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='rtnl_is_locked' mangled-name='rtnl_is_locked' filepath='include/linux/rtnetlink.h' line='35' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rtnl_is_locked'>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='nla_put' mangled-name='nla_put' filepath='include/net/netlink.h' line='272' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nla_put'>
+ <parameter type-id='0fbf3cfd'/>
+ <parameter type-id='95e97e5e'/>
+ <parameter type-id='95e97e5e'/>
+ <parameter type-id='eaa32e2f'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='skb_trim' mangled-name='skb_trim' filepath='include/linux/skbuff.h' line='2551' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_trim'>
+ <parameter type-id='0fbf3cfd'/>
+ <parameter type-id='f0981eeb'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='nla_memcpy' mangled-name='nla_memcpy' filepath='include/net/netlink.h' line='256' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nla_memcpy'>
+ <parameter type-id='eaa32e2f'/>
+ <parameter type-id='0f2a7ce5'/>
+ <parameter type-id='95e97e5e'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='nla_put_64bit' mangled-name='nla_put_64bit' filepath='include/net/netlink.h' line='273' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nla_put_64bit'>
+ <parameter type-id='0fbf3cfd'/>
+ <parameter type-id='95e97e5e'/>
+ <parameter type-id='95e97e5e'/>
+ <parameter type-id='eaa32e2f'/>
+ <parameter type-id='95e97e5e'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='net/socket.c' language='LANG_C89'>
+ <pointer-type-def type-id='cd5915d8' size-in-bits='64' id='9c68341e'/>
+ <pointer-type-def type-id='13103032' size-in-bits='64' id='1a7bb5c8'/>
+ <function-decl name='sock_alloc_file' mangled-name='sock_alloc_file' filepath='net/socket.c' line='399' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_alloc_file'>
+ <parameter type-id='13103032' name='sock' filepath='net/socket.c' line='399' column='1'/>
+ <parameter type-id='95e97e5e' name='flags' filepath='net/socket.c' line='399' column='1'/>
+ <parameter type-id='80f4b756' name='dname' filepath='net/socket.c' line='399' column='1'/>
+ <return type-id='77e79a4b'/>
+ </function-decl>
+ <function-decl name='sock_release' mangled-name='sock_release' filepath='net/socket.c' line='617' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_release'>
+ <parameter type-id='13103032' name='sock' filepath='net/socket.c' line='617' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='kernel_sendmsg' mangled-name='kernel_sendmsg' filepath='net/socket.c' line='677' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kernel_sendmsg'>
+ <parameter type-id='13103032' name='sock' filepath='net/socket.c' line='677' column='1'/>
+ <parameter type-id='6b9b777a' name='msg' filepath='net/socket.c' line='677' column='1'/>
+ <parameter type-id='9c68341e' name='vec' filepath='net/socket.c' line='678' column='1'/>
+ <parameter type-id='b59d7dce' name='num' filepath='net/socket.c' line='678' column='1'/>
+ <parameter type-id='b59d7dce' name='size' filepath='net/socket.c' line='678' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='put_cmsg' mangled-name='put_cmsg' filepath='include/linux/socket.h' line='349' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='put_cmsg'>
+ <parameter type-id='6b9b777a'/>
+ <parameter type-id='95e97e5e'/>
+ <parameter type-id='95e97e5e'/>
+ <parameter type-id='95e97e5e'/>
+ <parameter type-id='eaa32e2f'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='__sock_recv_ts_and_drops' mangled-name='__sock_recv_ts_and_drops' filepath='net/socket.c' line='838' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__sock_recv_ts_and_drops'>
+ <parameter type-id='6b9b777a' name='msg' filepath='net/socket.c' line='838' column='1'/>
+ <parameter type-id='f772df6d' name='sk' filepath='net/socket.c' line='838' column='1'/>
+ <parameter type-id='0fbf3cfd' name='skb' filepath='net/socket.c' line='839' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='kernel_recvmsg' mangled-name='kernel_recvmsg' filepath='net/socket.c' line='886' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kernel_recvmsg'>
+ <parameter type-id='13103032' name='sock' filepath='net/socket.c' line='886' column='1'/>
+ <parameter type-id='6b9b777a' name='msg' filepath='net/socket.c' line='886' column='1'/>
+ <parameter type-id='9c68341e' name='vec' filepath='net/socket.c' line='887' column='1'/>
+ <parameter type-id='b59d7dce' name='num' filepath='net/socket.c' line='887' column='1'/>
+ <parameter type-id='b59d7dce' name='size' filepath='net/socket.c' line='887' column='1'/>
+ <parameter type-id='95e97e5e' name='flags' filepath='net/socket.c' line='887' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='sock_wake_async' mangled-name='sock_wake_async' filepath='net/socket.c' line='1251' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_wake_async'>
+ <parameter type-id='99f34ac1' name='wq' filepath='net/socket.c' line='1251' column='1'/>
+ <parameter type-id='95e97e5e' name='how' filepath='net/socket.c' line='1251' column='1'/>
+ <parameter type-id='95e97e5e' name='band' filepath='net/socket.c' line='1251' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='sock_create' mangled-name='sock_create' filepath='net/socket.c' line='1412' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_create'>
+ <parameter type-id='95e97e5e' name='family' filepath='net/socket.c' line='1412' column='1'/>
+ <parameter type-id='95e97e5e' name='type' filepath='net/socket.c' line='1412' column='1'/>
+ <parameter type-id='95e97e5e' name='protocol' filepath='net/socket.c' line='1412' column='1'/>
+ <parameter type-id='1a7bb5c8' name='res' filepath='net/socket.c' line='1412' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='sock_create_kern' mangled-name='sock_create_kern' filepath='net/socket.c' line='1430' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_create_kern'>
+ <parameter type-id='a2bff676' name='net' filepath='net/socket.c' line='1430' column='1'/>
+ <parameter type-id='95e97e5e' name='family' filepath='net/socket.c' line='1430' column='1'/>
+ <parameter type-id='95e97e5e' name='type' filepath='net/socket.c' line='1430' column='1'/>
+ <parameter type-id='95e97e5e' name='protocol' filepath='net/socket.c' line='1430' column='1'/>
+ <parameter type-id='1a7bb5c8' name='res' filepath='net/socket.c' line='1430' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='sock_kmalloc' mangled-name='sock_kmalloc' filepath='include/net/sock.h' line='1622' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_kmalloc'>
+ <parameter type-id='f772df6d'/>
+ <parameter type-id='95e97e5e'/>
+ <parameter type-id='f0981eeb'/>
+ <return type-id='eaa32e2f'/>
+ </function-decl>
+ <function-decl name='kernel_connect' mangled-name='kernel_connect' filepath='net/socket.c' line='3464' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kernel_connect'>
+ <parameter type-id='13103032' name='sock' filepath='net/socket.c' line='3464' column='1'/>
+ <parameter type-id='5c0abad8' name='addr' filepath='net/socket.c' line='3464' column='1'/>
+ <parameter type-id='95e97e5e' name='addrlen' filepath='net/socket.c' line='3464' column='1'/>
+ <parameter type-id='95e97e5e' name='flags' filepath='net/socket.c' line='3465' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='kernel_getsockname' mangled-name='kernel_getsockname' filepath='net/socket.c' line='3480' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kernel_getsockname'>
+ <parameter type-id='13103032' name='sock' filepath='net/socket.c' line='3480' column='1'/>
+ <parameter type-id='5c0abad8' name='addr' filepath='net/socket.c' line='3480' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='kernel_setsockopt' mangled-name='kernel_setsockopt' filepath='net/socket.c' line='3546' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kernel_setsockopt'>
+ <parameter type-id='13103032' name='sock' filepath='net/socket.c' line='3546' column='1'/>
+ <parameter type-id='95e97e5e' name='level' filepath='net/socket.c' line='3546' column='1'/>
+ <parameter type-id='95e97e5e' name='optname' filepath='net/socket.c' line='3546' column='1'/>
+ <parameter type-id='26a90f95' name='optval' filepath='net/socket.c' line='3547' column='1'/>
+ <parameter type-id='f0981eeb' name='optlen' filepath='net/socket.c' line='3547' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='sock_no_sendpage' mangled-name='sock_no_sendpage' filepath='include/net/sock.h' line='1663' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_no_sendpage'>
+ <parameter type-id='13103032'/>
+ <parameter type-id='02f11ed4'/>
+ <parameter type-id='95e97e5e'/>
+ <parameter type-id='7359adad'/>
+ <parameter type-id='95e97e5e'/>
+ <return type-id='bd54fe1a'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='net/tipc/diag.c' language='LANG_C89'>
+ <class-decl name='sock_diag_handler' size-in-bits='256' is-struct='yes' visibility='default' filepath='include/linux/sock_diag.h' line='15' column='1' id='caff6eaa'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='family' type-id='8f048e17' visibility='default' filepath='include/linux/sock_diag.h' line='16' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='dump' type-id='7710808a' visibility='default' filepath='include/linux/sock_diag.h' line='17' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='get_info' type-id='48faa79b' visibility='default' filepath='include/linux/sock_diag.h' line='18' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='destroy' type-id='7710808a' visibility='default' filepath='include/linux/sock_diag.h' line='19' column='1'/>
+ </data-member>
+ </class-decl>
+ <qualified-type-def type-id='caff6eaa' const='yes' id='68eec231'/>
+ <pointer-type-def type-id='68eec231' size-in-bits='64' id='4adb9081'/>
+ <pointer-type-def type-id='26e0d4f0' size-in-bits='64' id='7710808a'/>
+ <pointer-type-def type-id='5f92413f' size-in-bits='64' id='48faa79b'/>
+ <function-decl name='sock_diag_unregister' mangled-name='sock_diag_unregister' filepath='include/linux/sock_diag.h' line='23' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_diag_unregister'>
+ <parameter type-id='4adb9081'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='sock_diag_save_cookie' mangled-name='sock_diag_save_cookie' filepath='include/linux/sock_diag.h' line='30' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_diag_save_cookie'>
+ <parameter type-id='f772df6d'/>
+ <parameter type-id='807869d3'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='sock_diag_register' mangled-name='sock_diag_register' filepath='include/linux/sock_diag.h' line='22' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_diag_register'>
+ <parameter type-id='4adb9081'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-type size-in-bits='64' id='26e0d4f0'>
+ <parameter type-id='0fbf3cfd'/>
+ <parameter type-id='c2074578'/>
+ <return type-id='95e97e5e'/>
+ </function-type>
+ <function-type size-in-bits='64' id='5f92413f'>
+ <parameter type-id='0fbf3cfd'/>
+ <parameter type-id='f772df6d'/>
+ <return type-id='95e97e5e'/>
+ </function-type>
+ </abi-instr>
+ <abi-instr address-size='64' path='net/wireless/core.c' language='LANG_C89'>
+ <array-type-def dimensions='1' type-id='5b11c736' size-in-bits='864' id='b7bcaa67'>
+ <subrange length='3' type-id='7ff19f0f' id='56f209d2'/>
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+ </array-type-def>
+ <class-decl name='cfg80211_conn' size-in-bits='3136' is-struct='yes' visibility='default' filepath='net/wireless/sme.c' line='31' column='1' id='43420c6a'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='params' type-id='1291defd' visibility='default' filepath='net/wireless/sme.c' line='32' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='2816'>
+ <var-decl name='state' type-id='08f5ca1c' visibility='default' filepath='net/wireless/sme.c' line='47' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='2848'>
+ <var-decl name='bssid' type-id='cf1a4160' visibility='default' filepath='net/wireless/sme.c' line='48' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='2896'>
+ <var-decl name='prev_bssid' type-id='cf1a4160' visibility='default' filepath='net/wireless/sme.c' line='48' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='2944'>
+ <var-decl name='ie' type-id='bbaf3419' visibility='default' filepath='net/wireless/sme.c' line='49' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='3008'>
+ <var-decl name='ie_len' type-id='b59d7dce' visibility='default' filepath='net/wireless/sme.c' line='50' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='3072'>
+ <var-decl name='auto_auth' type-id='b50a4934' visibility='default' filepath='net/wireless/sme.c' line='51' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='3080'>
+ <var-decl name='prev_bssid_valid' type-id='b50a4934' visibility='default' filepath='net/wireless/sme.c' line='51' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='libipw_device' is-struct='yes' visibility='default' is-declaration-only='yes' id='9c91a761'/>
+ <array-type-def dimensions='1' type-id='ec00acfb' size-in-bits='infinite' id='14cad687'>
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+ </array-type-def>
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+ </array-type-def>
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+ </array-type-def>
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+ </array-type-def>
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+ </array-type-def>
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+ </array-type-def>
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+ </function-type>
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+ </function-type>
+ <function-type size-in-bits='64' id='cfdbff8a'>
+ <parameter type-id='68a2d05b'/>
+ <return type-id='003642fd'/>
+ </function-type>
+ <function-type size-in-bits='64' id='a2365ade'>
+ <parameter type-id='eaa32e2f'/>
+ <parameter type-id='706d79ff'/>
+ <return type-id='48b5725f'/>
+ </function-type>
+ <function-type size-in-bits='64' id='17f99cdb'>
+ <parameter type-id='666fb412'/>
+ <return type-id='48b5725f'/>
+ </function-type>
+ <function-type size-in-bits='64' id='e357eac3'>
+ <parameter type-id='666fb412'/>
+ <parameter type-id='68a2d05b'/>
+ <return type-id='48b5725f'/>
+ </function-type>
+ <function-type size-in-bits='64' id='9007252d'>
+ <parameter type-id='666fb412'/>
+ <parameter type-id='68a2d05b'/>
+ <parameter type-id='bbaf3419'/>
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+ </function-type>
+ <function-type size-in-bits='64' id='10781bfd'>
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+ </function-type>
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+ <parameter type-id='666fb412'/>
+ <parameter type-id='b50a4934'/>
+ <return type-id='48b5725f'/>
+ </function-type>
+ <function-type size-in-bits='64' id='2591da2d'>
+ <parameter type-id='666fb412'/>
+ <parameter type-id='63c7e8e1'/>
+ <return type-id='48b5725f'/>
+ </function-type>
+ <function-type size-in-bits='64' id='4e932973'>
+ <parameter type-id='666fb412'/>
+ <parameter type-id='63c7e8e1'/>
+ <parameter type-id='1dc6a898'/>
+ <parameter type-id='b50a4934'/>
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+ </function-type>
+ <function-type size-in-bits='64' id='49354cf3'>
+ <parameter type-id='666fb412'/>
+ <parameter type-id='63c7e8e1'/>
+ <parameter type-id='91ce1af9'/>
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+ </function-type>
+ <function-type size-in-bits='64' id='3b132996'>
+ <parameter type-id='666fb412'/>
+ <parameter type-id='80f4b756'/>
+ <parameter type-id='002ac4a6'/>
+ <parameter type-id='86505f90'/>
+ <parameter type-id='835ace8d'/>
+ <return type-id='63c7e8e1'/>
+ </function-type>
+ </abi-instr>
+ <abi-instr address-size='64' path='net/wireless/ibss.c' language='LANG_C89'>
+ <function-decl name='cfg80211_ibss_joined' mangled-name='cfg80211_ibss_joined' filepath='net/wireless/ibss.c' line='59' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_ibss_joined'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/ibss.c' line='59' column='1'/>
+ <parameter type-id='bbaf3419' name='bssid' filepath='net/wireless/ibss.c' line='59' column='1'/>
+ <parameter type-id='ec00acfb' name='channel' filepath='net/wireless/ibss.c' line='60' column='1'/>
+ <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/ibss.c' line='60' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='net/wireless/mlme.c' language='LANG_C89'>
+ <enum-decl name='nl80211_key_type' filepath='include/uapi/linux/nl80211.h' line='4367' column='1' id='fa66a097'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='NL80211_KEYTYPE_GROUP' value='0'/>
+ <enumerator name='NL80211_KEYTYPE_PAIRWISE' value='1'/>
+ <enumerator name='NL80211_KEYTYPE_PEERKEY' value='2'/>
+ <enumerator name='NUM_NL80211_KEYTYPES' value='3'/>
+ </enum-decl>
+ <function-decl name='cfg80211_michael_mic_failure' mangled-name='cfg80211_michael_mic_failure' filepath='net/wireless/mlme.c' line='189' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_michael_mic_failure'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/mlme.c' line='189' column='1'/>
+ <parameter type-id='bbaf3419' name='addr' filepath='net/wireless/mlme.c' line='189' column='1'/>
+ <parameter type-id='fa66a097' name='key_type' filepath='net/wireless/mlme.c' line='190' column='1'/>
+ <parameter type-id='95e97e5e' name='key_id' filepath='net/wireless/mlme.c' line='190' column='1'/>
+ <parameter type-id='bbaf3419' name='tsc' filepath='net/wireless/mlme.c' line='191' column='1'/>
+ <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/mlme.c' line='191' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='cfg80211_rx_mgmt' mangled-name='cfg80211_rx_mgmt' filepath='net/wireless/mlme.c' line='695' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_rx_mgmt'>
+ <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/mlme.c' line='695' column='1'/>
+ <parameter type-id='95e97e5e' name='freq' filepath='net/wireless/mlme.c' line='695' column='1'/>
+ <parameter type-id='95e97e5e' name='sig_dbm' filepath='net/wireless/mlme.c' line='695' column='1'/>
+ <parameter type-id='bbaf3419' name='buf' filepath='net/wireless/mlme.c' line='696' column='1'/>
+ <parameter type-id='b59d7dce' name='len' filepath='net/wireless/mlme.c' line='696' column='1'/>
+ <parameter type-id='19c2251e' name='flags' filepath='net/wireless/mlme.c' line='696' column='1'/>
+ <return type-id='b50a4934'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='net/wireless/nl80211.c' language='LANG_C89'>
+ <enum-decl name='nl80211_commands' filepath='include/uapi/linux/nl80211.h' line='1081' column='1' id='187e1e49'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='NL80211_CMD_UNSPEC' value='0'/>
+ <enumerator name='NL80211_CMD_GET_WIPHY' value='1'/>
+ <enumerator name='NL80211_CMD_SET_WIPHY' value='2'/>
+ <enumerator name='NL80211_CMD_NEW_WIPHY' value='3'/>
+ <enumerator name='NL80211_CMD_DEL_WIPHY' value='4'/>
+ <enumerator name='NL80211_CMD_GET_INTERFACE' value='5'/>
+ <enumerator name='NL80211_CMD_SET_INTERFACE' value='6'/>
+ <enumerator name='NL80211_CMD_NEW_INTERFACE' value='7'/>
+ <enumerator name='NL80211_CMD_DEL_INTERFACE' value='8'/>
+ <enumerator name='NL80211_CMD_GET_KEY' value='9'/>
+ <enumerator name='NL80211_CMD_SET_KEY' value='10'/>
+ <enumerator name='NL80211_CMD_NEW_KEY' value='11'/>
+ <enumerator name='NL80211_CMD_DEL_KEY' value='12'/>
+ <enumerator name='NL80211_CMD_GET_BEACON' value='13'/>
+ <enumerator name='NL80211_CMD_SET_BEACON' value='14'/>
+ <enumerator name='NL80211_CMD_START_AP' value='15'/>
+ <enumerator name='NL80211_CMD_NEW_BEACON' value='15'/>
+ <enumerator name='NL80211_CMD_STOP_AP' value='16'/>
+ <enumerator name='NL80211_CMD_DEL_BEACON' value='16'/>
+ <enumerator name='NL80211_CMD_GET_STATION' value='17'/>
+ <enumerator name='NL80211_CMD_SET_STATION' value='18'/>
+ <enumerator name='NL80211_CMD_NEW_STATION' value='19'/>
+ <enumerator name='NL80211_CMD_DEL_STATION' value='20'/>
+ <enumerator name='NL80211_CMD_GET_MPATH' value='21'/>
+ <enumerator name='NL80211_CMD_SET_MPATH' value='22'/>
+ <enumerator name='NL80211_CMD_NEW_MPATH' value='23'/>
+ <enumerator name='NL80211_CMD_DEL_MPATH' value='24'/>
+ <enumerator name='NL80211_CMD_SET_BSS' value='25'/>
+ <enumerator name='NL80211_CMD_SET_REG' value='26'/>
+ <enumerator name='NL80211_CMD_REQ_SET_REG' value='27'/>
+ <enumerator name='NL80211_CMD_GET_MESH_CONFIG' value='28'/>
+ <enumerator name='NL80211_CMD_SET_MESH_CONFIG' value='29'/>
+ <enumerator name='NL80211_CMD_SET_MGMT_EXTRA_IE' value='30'/>
+ <enumerator name='NL80211_CMD_GET_REG' value='31'/>
+ <enumerator name='NL80211_CMD_GET_SCAN' value='32'/>
+ <enumerator name='NL80211_CMD_TRIGGER_SCAN' value='33'/>
+ <enumerator name='NL80211_CMD_NEW_SCAN_RESULTS' value='34'/>
+ <enumerator name='NL80211_CMD_SCAN_ABORTED' value='35'/>
+ <enumerator name='NL80211_CMD_REG_CHANGE' value='36'/>
+ <enumerator name='NL80211_CMD_AUTHENTICATE' value='37'/>
+ <enumerator name='NL80211_CMD_ASSOCIATE' value='38'/>
+ <enumerator name='NL80211_CMD_DEAUTHENTICATE' value='39'/>
+ <enumerator name='NL80211_CMD_DISASSOCIATE' value='40'/>
+ <enumerator name='NL80211_CMD_MICHAEL_MIC_FAILURE' value='41'/>
+ <enumerator name='NL80211_CMD_REG_BEACON_HINT' value='42'/>
+ <enumerator name='NL80211_CMD_JOIN_IBSS' value='43'/>
+ <enumerator name='NL80211_CMD_LEAVE_IBSS' value='44'/>
+ <enumerator name='NL80211_CMD_TESTMODE' value='45'/>
+ <enumerator name='NL80211_CMD_CONNECT' value='46'/>
+ <enumerator name='NL80211_CMD_ROAM' value='47'/>
+ <enumerator name='NL80211_CMD_DISCONNECT' value='48'/>
+ <enumerator name='NL80211_CMD_SET_WIPHY_NETNS' value='49'/>
+ <enumerator name='NL80211_CMD_GET_SURVEY' value='50'/>
+ <enumerator name='NL80211_CMD_NEW_SURVEY_RESULTS' value='51'/>
+ <enumerator name='NL80211_CMD_SET_PMKSA' value='52'/>
+ <enumerator name='NL80211_CMD_DEL_PMKSA' value='53'/>
+ <enumerator name='NL80211_CMD_FLUSH_PMKSA' value='54'/>
+ <enumerator name='NL80211_CMD_REMAIN_ON_CHANNEL' value='55'/>
+ <enumerator name='NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL' value='56'/>
+ <enumerator name='NL80211_CMD_SET_TX_BITRATE_MASK' value='57'/>
+ <enumerator name='NL80211_CMD_REGISTER_FRAME' value='58'/>
+ <enumerator name='NL80211_CMD_REGISTER_ACTION' value='58'/>
+ <enumerator name='NL80211_CMD_FRAME' value='59'/>
+ <enumerator name='NL80211_CMD_ACTION' value='59'/>
+ <enumerator name='NL80211_CMD_FRAME_TX_STATUS' value='60'/>
+ <enumerator name='NL80211_CMD_ACTION_TX_STATUS' value='60'/>
+ <enumerator name='NL80211_CMD_SET_POWER_SAVE' value='61'/>
+ <enumerator name='NL80211_CMD_GET_POWER_SAVE' value='62'/>
+ <enumerator name='NL80211_CMD_SET_CQM' value='63'/>
+ <enumerator name='NL80211_CMD_NOTIFY_CQM' value='64'/>
+ <enumerator name='NL80211_CMD_SET_CHANNEL' value='65'/>
+ <enumerator name='NL80211_CMD_SET_WDS_PEER' value='66'/>
+ <enumerator name='NL80211_CMD_FRAME_WAIT_CANCEL' value='67'/>
+ <enumerator name='NL80211_CMD_JOIN_MESH' value='68'/>
+ <enumerator name='NL80211_CMD_LEAVE_MESH' value='69'/>
+ <enumerator name='NL80211_CMD_UNPROT_DEAUTHENTICATE' value='70'/>
+ <enumerator name='NL80211_CMD_UNPROT_DISASSOCIATE' value='71'/>
+ <enumerator name='NL80211_CMD_NEW_PEER_CANDIDATE' value='72'/>
+ <enumerator name='NL80211_CMD_GET_WOWLAN' value='73'/>
+ <enumerator name='NL80211_CMD_SET_WOWLAN' value='74'/>
+ <enumerator name='NL80211_CMD_START_SCHED_SCAN' value='75'/>
+ <enumerator name='NL80211_CMD_STOP_SCHED_SCAN' value='76'/>
+ <enumerator name='NL80211_CMD_SCHED_SCAN_RESULTS' value='77'/>
+ <enumerator name='NL80211_CMD_SCHED_SCAN_STOPPED' value='78'/>
+ <enumerator name='NL80211_CMD_SET_REKEY_OFFLOAD' value='79'/>
+ <enumerator name='NL80211_CMD_PMKSA_CANDIDATE' value='80'/>
+ <enumerator name='NL80211_CMD_TDLS_OPER' value='81'/>
+ <enumerator name='NL80211_CMD_TDLS_MGMT' value='82'/>
+ <enumerator name='NL80211_CMD_UNEXPECTED_FRAME' value='83'/>
+ <enumerator name='NL80211_CMD_PROBE_CLIENT' value='84'/>
+ <enumerator name='NL80211_CMD_REGISTER_BEACONS' value='85'/>
+ <enumerator name='NL80211_CMD_UNEXPECTED_4ADDR_FRAME' value='86'/>
+ <enumerator name='NL80211_CMD_SET_NOACK_MAP' value='87'/>
+ <enumerator name='NL80211_CMD_CH_SWITCH_NOTIFY' value='88'/>
+ <enumerator name='NL80211_CMD_START_P2P_DEVICE' value='89'/>
+ <enumerator name='NL80211_CMD_STOP_P2P_DEVICE' value='90'/>
+ <enumerator name='NL80211_CMD_CONN_FAILED' value='91'/>
+ <enumerator name='NL80211_CMD_SET_MCAST_RATE' value='92'/>
+ <enumerator name='NL80211_CMD_SET_MAC_ACL' value='93'/>
+ <enumerator name='NL80211_CMD_RADAR_DETECT' value='94'/>
+ <enumerator name='NL80211_CMD_GET_PROTOCOL_FEATURES' value='95'/>
+ <enumerator name='NL80211_CMD_UPDATE_FT_IES' value='96'/>
+ <enumerator name='NL80211_CMD_FT_EVENT' value='97'/>
+ <enumerator name='NL80211_CMD_CRIT_PROTOCOL_START' value='98'/>
+ <enumerator name='NL80211_CMD_CRIT_PROTOCOL_STOP' value='99'/>
+ <enumerator name='NL80211_CMD_GET_COALESCE' value='100'/>
+ <enumerator name='NL80211_CMD_SET_COALESCE' value='101'/>
+ <enumerator name='NL80211_CMD_CHANNEL_SWITCH' value='102'/>
+ <enumerator name='NL80211_CMD_VENDOR' value='103'/>
+ <enumerator name='NL80211_CMD_SET_QOS_MAP' value='104'/>
+ <enumerator name='NL80211_CMD_ADD_TX_TS' value='105'/>
+ <enumerator name='NL80211_CMD_DEL_TX_TS' value='106'/>
+ <enumerator name='NL80211_CMD_GET_MPP' value='107'/>
+ <enumerator name='NL80211_CMD_JOIN_OCB' value='108'/>
+ <enumerator name='NL80211_CMD_LEAVE_OCB' value='109'/>
+ <enumerator name='NL80211_CMD_CH_SWITCH_STARTED_NOTIFY' value='110'/>
+ <enumerator name='NL80211_CMD_TDLS_CHANNEL_SWITCH' value='111'/>
+ <enumerator name='NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH' value='112'/>
+ <enumerator name='NL80211_CMD_WIPHY_REG_CHANGE' value='113'/>
+ <enumerator name='NL80211_CMD_ABORT_SCAN' value='114'/>
+ <enumerator name='NL80211_CMD_START_NAN' value='115'/>
+ <enumerator name='NL80211_CMD_STOP_NAN' value='116'/>
+ <enumerator name='NL80211_CMD_ADD_NAN_FUNCTION' value='117'/>
+ <enumerator name='NL80211_CMD_DEL_NAN_FUNCTION' value='118'/>
+ <enumerator name='NL80211_CMD_CHANGE_NAN_CONFIG' value='119'/>
+ <enumerator name='NL80211_CMD_NAN_MATCH' value='120'/>
+ <enumerator name='NL80211_CMD_SET_MULTICAST_TO_UNICAST' value='121'/>
+ <enumerator name='NL80211_CMD_UPDATE_CONNECT_PARAMS' value='122'/>
+ <enumerator name='NL80211_CMD_SET_PMK' value='123'/>
+ <enumerator name='NL80211_CMD_DEL_PMK' value='124'/>
+ <enumerator name='NL80211_CMD_PORT_AUTHORIZED' value='125'/>
+ <enumerator name='NL80211_CMD_RELOAD_REGDB' value='126'/>
+ <enumerator name='NL80211_CMD_EXTERNAL_AUTH' value='127'/>
+ <enumerator name='NL80211_CMD_STA_OPMODE_CHANGED' value='128'/>
+ <enumerator name='NL80211_CMD_CONTROL_PORT_FRAME' value='129'/>
+ <enumerator name='NL80211_CMD_GET_FTM_RESPONDER_STATS' value='130'/>
+ <enumerator name='NL80211_CMD_PEER_MEASUREMENT_START' value='131'/>
+ <enumerator name='NL80211_CMD_PEER_MEASUREMENT_RESULT' value='132'/>
+ <enumerator name='NL80211_CMD_PEER_MEASUREMENT_COMPLETE' value='133'/>
+ <enumerator name='NL80211_CMD_NOTIFY_RADAR' value='134'/>
+ <enumerator name='NL80211_CMD_UPDATE_OWE_INFO' value='135'/>
+ <enumerator name='__NL80211_CMD_AFTER_LAST' value='136'/>
+ <enumerator name='NL80211_CMD_MAX' value='135'/>
+ </enum-decl>
+ <enum-decl name='nl80211_attrs' filepath='include/uapi/linux/nl80211.h' line='2358' column='1' id='320b0ded'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='NL80211_ATTR_UNSPEC' value='0'/>
+ <enumerator name='NL80211_ATTR_WIPHY' value='1'/>
+ <enumerator name='NL80211_ATTR_WIPHY_NAME' value='2'/>
+ <enumerator name='NL80211_ATTR_IFINDEX' value='3'/>
+ <enumerator name='NL80211_ATTR_IFNAME' value='4'/>
+ <enumerator name='NL80211_ATTR_IFTYPE' value='5'/>
+ <enumerator name='NL80211_ATTR_MAC' value='6'/>
+ <enumerator name='NL80211_ATTR_KEY_DATA' value='7'/>
+ <enumerator name='NL80211_ATTR_KEY_IDX' value='8'/>
+ <enumerator name='NL80211_ATTR_KEY_CIPHER' value='9'/>
+ <enumerator name='NL80211_ATTR_KEY_SEQ' value='10'/>
+ <enumerator name='NL80211_ATTR_KEY_DEFAULT' value='11'/>
+ <enumerator name='NL80211_ATTR_BEACON_INTERVAL' value='12'/>
+ <enumerator name='NL80211_ATTR_DTIM_PERIOD' value='13'/>
+ <enumerator name='NL80211_ATTR_BEACON_HEAD' value='14'/>
+ <enumerator name='NL80211_ATTR_BEACON_TAIL' value='15'/>
+ <enumerator name='NL80211_ATTR_STA_AID' value='16'/>
+ <enumerator name='NL80211_ATTR_STA_FLAGS' value='17'/>
+ <enumerator name='NL80211_ATTR_STA_LISTEN_INTERVAL' value='18'/>
+ <enumerator name='NL80211_ATTR_STA_SUPPORTED_RATES' value='19'/>
+ <enumerator name='NL80211_ATTR_STA_VLAN' value='20'/>
+ <enumerator name='NL80211_ATTR_STA_INFO' value='21'/>
+ <enumerator name='NL80211_ATTR_WIPHY_BANDS' value='22'/>
+ <enumerator name='NL80211_ATTR_MNTR_FLAGS' value='23'/>
+ <enumerator name='NL80211_ATTR_MESH_ID' value='24'/>
+ <enumerator name='NL80211_ATTR_STA_PLINK_ACTION' value='25'/>
+ <enumerator name='NL80211_ATTR_MPATH_NEXT_HOP' value='26'/>
+ <enumerator name='NL80211_ATTR_MPATH_INFO' value='27'/>
+ <enumerator name='NL80211_ATTR_BSS_CTS_PROT' value='28'/>
+ <enumerator name='NL80211_ATTR_BSS_SHORT_PREAMBLE' value='29'/>
+ <enumerator name='NL80211_ATTR_BSS_SHORT_SLOT_TIME' value='30'/>
+ <enumerator name='NL80211_ATTR_HT_CAPABILITY' value='31'/>
+ <enumerator name='NL80211_ATTR_SUPPORTED_IFTYPES' value='32'/>
+ <enumerator name='NL80211_ATTR_REG_ALPHA2' value='33'/>
+ <enumerator name='NL80211_ATTR_REG_RULES' value='34'/>
+ <enumerator name='NL80211_ATTR_MESH_CONFIG' value='35'/>
+ <enumerator name='NL80211_ATTR_BSS_BASIC_RATES' value='36'/>
+ <enumerator name='NL80211_ATTR_WIPHY_TXQ_PARAMS' value='37'/>
+ <enumerator name='NL80211_ATTR_WIPHY_FREQ' value='38'/>
+ <enumerator name='NL80211_ATTR_WIPHY_CHANNEL_TYPE' value='39'/>
+ <enumerator name='NL80211_ATTR_KEY_DEFAULT_MGMT' value='40'/>
+ <enumerator name='NL80211_ATTR_MGMT_SUBTYPE' value='41'/>
+ <enumerator name='NL80211_ATTR_IE' value='42'/>
+ <enumerator name='NL80211_ATTR_MAX_NUM_SCAN_SSIDS' value='43'/>
+ <enumerator name='NL80211_ATTR_SCAN_FREQUENCIES' value='44'/>
+ <enumerator name='NL80211_ATTR_SCAN_SSIDS' value='45'/>
+ <enumerator name='NL80211_ATTR_GENERATION' value='46'/>
+ <enumerator name='NL80211_ATTR_BSS' value='47'/>
+ <enumerator name='NL80211_ATTR_REG_INITIATOR' value='48'/>
+ <enumerator name='NL80211_ATTR_REG_TYPE' value='49'/>
+ <enumerator name='NL80211_ATTR_SUPPORTED_COMMANDS' value='50'/>
+ <enumerator name='NL80211_ATTR_FRAME' value='51'/>
+ <enumerator name='NL80211_ATTR_SSID' value='52'/>
+ <enumerator name='NL80211_ATTR_AUTH_TYPE' value='53'/>
+ <enumerator name='NL80211_ATTR_REASON_CODE' value='54'/>
+ <enumerator name='NL80211_ATTR_KEY_TYPE' value='55'/>
+ <enumerator name='NL80211_ATTR_MAX_SCAN_IE_LEN' value='56'/>
+ <enumerator name='NL80211_ATTR_CIPHER_SUITES' value='57'/>
+ <enumerator name='NL80211_ATTR_FREQ_BEFORE' value='58'/>
+ <enumerator name='NL80211_ATTR_FREQ_AFTER' value='59'/>
+ <enumerator name='NL80211_ATTR_FREQ_FIXED' value='60'/>
+ <enumerator name='NL80211_ATTR_WIPHY_RETRY_SHORT' value='61'/>
+ <enumerator name='NL80211_ATTR_WIPHY_RETRY_LONG' value='62'/>
+ <enumerator name='NL80211_ATTR_WIPHY_FRAG_THRESHOLD' value='63'/>
+ <enumerator name='NL80211_ATTR_WIPHY_RTS_THRESHOLD' value='64'/>
+ <enumerator name='NL80211_ATTR_TIMED_OUT' value='65'/>
+ <enumerator name='NL80211_ATTR_USE_MFP' value='66'/>
+ <enumerator name='NL80211_ATTR_STA_FLAGS2' value='67'/>
+ <enumerator name='NL80211_ATTR_CONTROL_PORT' value='68'/>
+ <enumerator name='NL80211_ATTR_TESTDATA' value='69'/>
+ <enumerator name='NL80211_ATTR_PRIVACY' value='70'/>
+ <enumerator name='NL80211_ATTR_DISCONNECTED_BY_AP' value='71'/>
+ <enumerator name='NL80211_ATTR_STATUS_CODE' value='72'/>
+ <enumerator name='NL80211_ATTR_CIPHER_SUITES_PAIRWISE' value='73'/>
+ <enumerator name='NL80211_ATTR_CIPHER_SUITE_GROUP' value='74'/>
+ <enumerator name='NL80211_ATTR_WPA_VERSIONS' value='75'/>
+ <enumerator name='NL80211_ATTR_AKM_SUITES' value='76'/>
+ <enumerator name='NL80211_ATTR_REQ_IE' value='77'/>
+ <enumerator name='NL80211_ATTR_RESP_IE' value='78'/>
+ <enumerator name='NL80211_ATTR_PREV_BSSID' value='79'/>
+ <enumerator name='NL80211_ATTR_KEY' value='80'/>
+ <enumerator name='NL80211_ATTR_KEYS' value='81'/>
+ <enumerator name='NL80211_ATTR_PID' value='82'/>
+ <enumerator name='NL80211_ATTR_4ADDR' value='83'/>
+ <enumerator name='NL80211_ATTR_SURVEY_INFO' value='84'/>
+ <enumerator name='NL80211_ATTR_PMKID' value='85'/>
+ <enumerator name='NL80211_ATTR_MAX_NUM_PMKIDS' value='86'/>
+ <enumerator name='NL80211_ATTR_DURATION' value='87'/>
+ <enumerator name='NL80211_ATTR_COOKIE' value='88'/>
+ <enumerator name='NL80211_ATTR_WIPHY_COVERAGE_CLASS' value='89'/>
+ <enumerator name='NL80211_ATTR_TX_RATES' value='90'/>
+ <enumerator name='NL80211_ATTR_FRAME_MATCH' value='91'/>
+ <enumerator name='NL80211_ATTR_ACK' value='92'/>
+ <enumerator name='NL80211_ATTR_PS_STATE' value='93'/>
+ <enumerator name='NL80211_ATTR_CQM' value='94'/>
+ <enumerator name='NL80211_ATTR_LOCAL_STATE_CHANGE' value='95'/>
+ <enumerator name='NL80211_ATTR_AP_ISOLATE' value='96'/>
+ <enumerator name='NL80211_ATTR_WIPHY_TX_POWER_SETTING' value='97'/>
+ <enumerator name='NL80211_ATTR_WIPHY_TX_POWER_LEVEL' value='98'/>
+ <enumerator name='NL80211_ATTR_TX_FRAME_TYPES' value='99'/>
+ <enumerator name='NL80211_ATTR_RX_FRAME_TYPES' value='100'/>
+ <enumerator name='NL80211_ATTR_FRAME_TYPE' value='101'/>
+ <enumerator name='NL80211_ATTR_CONTROL_PORT_ETHERTYPE' value='102'/>
+ <enumerator name='NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT' value='103'/>
+ <enumerator name='NL80211_ATTR_SUPPORT_IBSS_RSN' value='104'/>
+ <enumerator name='NL80211_ATTR_WIPHY_ANTENNA_TX' value='105'/>
+ <enumerator name='NL80211_ATTR_WIPHY_ANTENNA_RX' value='106'/>
+ <enumerator name='NL80211_ATTR_MCAST_RATE' value='107'/>
+ <enumerator name='NL80211_ATTR_OFFCHANNEL_TX_OK' value='108'/>
+ <enumerator name='NL80211_ATTR_BSS_HT_OPMODE' value='109'/>
+ <enumerator name='NL80211_ATTR_KEY_DEFAULT_TYPES' value='110'/>
+ <enumerator name='NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION' value='111'/>
+ <enumerator name='NL80211_ATTR_MESH_SETUP' value='112'/>
+ <enumerator name='NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX' value='113'/>
+ <enumerator name='NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX' value='114'/>
+ <enumerator name='NL80211_ATTR_SUPPORT_MESH_AUTH' value='115'/>
+ <enumerator name='NL80211_ATTR_STA_PLINK_STATE' value='116'/>
+ <enumerator name='NL80211_ATTR_WOWLAN_TRIGGERS' value='117'/>
+ <enumerator name='NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED' value='118'/>
+ <enumerator name='NL80211_ATTR_SCHED_SCAN_INTERVAL' value='119'/>
+ <enumerator name='NL80211_ATTR_INTERFACE_COMBINATIONS' value='120'/>
+ <enumerator name='NL80211_ATTR_SOFTWARE_IFTYPES' value='121'/>
+ <enumerator name='NL80211_ATTR_REKEY_DATA' value='122'/>
+ <enumerator name='NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS' value='123'/>
+ <enumerator name='NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN' value='124'/>
+ <enumerator name='NL80211_ATTR_SCAN_SUPP_RATES' value='125'/>
+ <enumerator name='NL80211_ATTR_HIDDEN_SSID' value='126'/>
+ <enumerator name='NL80211_ATTR_IE_PROBE_RESP' value='127'/>
+ <enumerator name='NL80211_ATTR_IE_ASSOC_RESP' value='128'/>
+ <enumerator name='NL80211_ATTR_STA_WME' value='129'/>
+ <enumerator name='NL80211_ATTR_SUPPORT_AP_UAPSD' value='130'/>
+ <enumerator name='NL80211_ATTR_ROAM_SUPPORT' value='131'/>
+ <enumerator name='NL80211_ATTR_SCHED_SCAN_MATCH' value='132'/>
+ <enumerator name='NL80211_ATTR_MAX_MATCH_SETS' value='133'/>
+ <enumerator name='NL80211_ATTR_PMKSA_CANDIDATE' value='134'/>
+ <enumerator name='NL80211_ATTR_TX_NO_CCK_RATE' value='135'/>
+ <enumerator name='NL80211_ATTR_TDLS_ACTION' value='136'/>
+ <enumerator name='NL80211_ATTR_TDLS_DIALOG_TOKEN' value='137'/>
+ <enumerator name='NL80211_ATTR_TDLS_OPERATION' value='138'/>
+ <enumerator name='NL80211_ATTR_TDLS_SUPPORT' value='139'/>
+ <enumerator name='NL80211_ATTR_TDLS_EXTERNAL_SETUP' value='140'/>
+ <enumerator name='NL80211_ATTR_DEVICE_AP_SME' value='141'/>
+ <enumerator name='NL80211_ATTR_DONT_WAIT_FOR_ACK' value='142'/>
+ <enumerator name='NL80211_ATTR_FEATURE_FLAGS' value='143'/>
+ <enumerator name='NL80211_ATTR_PROBE_RESP_OFFLOAD' value='144'/>
+ <enumerator name='NL80211_ATTR_PROBE_RESP' value='145'/>
+ <enumerator name='NL80211_ATTR_DFS_REGION' value='146'/>
+ <enumerator name='NL80211_ATTR_DISABLE_HT' value='147'/>
+ <enumerator name='NL80211_ATTR_HT_CAPABILITY_MASK' value='148'/>
+ <enumerator name='NL80211_ATTR_NOACK_MAP' value='149'/>
+ <enumerator name='NL80211_ATTR_INACTIVITY_TIMEOUT' value='150'/>
+ <enumerator name='NL80211_ATTR_RX_SIGNAL_DBM' value='151'/>
+ <enumerator name='NL80211_ATTR_BG_SCAN_PERIOD' value='152'/>
+ <enumerator name='NL80211_ATTR_WDEV' value='153'/>
+ <enumerator name='NL80211_ATTR_USER_REG_HINT_TYPE' value='154'/>
+ <enumerator name='NL80211_ATTR_CONN_FAILED_REASON' value='155'/>
+ <enumerator name='NL80211_ATTR_AUTH_DATA' value='156'/>
+ <enumerator name='NL80211_ATTR_VHT_CAPABILITY' value='157'/>
+ <enumerator name='NL80211_ATTR_SCAN_FLAGS' value='158'/>
+ <enumerator name='NL80211_ATTR_CHANNEL_WIDTH' value='159'/>
+ <enumerator name='NL80211_ATTR_CENTER_FREQ1' value='160'/>
+ <enumerator name='NL80211_ATTR_CENTER_FREQ2' value='161'/>
+ <enumerator name='NL80211_ATTR_P2P_CTWINDOW' value='162'/>
+ <enumerator name='NL80211_ATTR_P2P_OPPPS' value='163'/>
+ <enumerator name='NL80211_ATTR_LOCAL_MESH_POWER_MODE' value='164'/>
+ <enumerator name='NL80211_ATTR_ACL_POLICY' value='165'/>
+ <enumerator name='NL80211_ATTR_MAC_ADDRS' value='166'/>
+ <enumerator name='NL80211_ATTR_MAC_ACL_MAX' value='167'/>
+ <enumerator name='NL80211_ATTR_RADAR_EVENT' value='168'/>
+ <enumerator name='NL80211_ATTR_EXT_CAPA' value='169'/>
+ <enumerator name='NL80211_ATTR_EXT_CAPA_MASK' value='170'/>
+ <enumerator name='NL80211_ATTR_STA_CAPABILITY' value='171'/>
+ <enumerator name='NL80211_ATTR_STA_EXT_CAPABILITY' value='172'/>
+ <enumerator name='NL80211_ATTR_PROTOCOL_FEATURES' value='173'/>
+ <enumerator name='NL80211_ATTR_SPLIT_WIPHY_DUMP' value='174'/>
+ <enumerator name='NL80211_ATTR_DISABLE_VHT' value='175'/>
+ <enumerator name='NL80211_ATTR_VHT_CAPABILITY_MASK' value='176'/>
+ <enumerator name='NL80211_ATTR_MDID' value='177'/>
+ <enumerator name='NL80211_ATTR_IE_RIC' value='178'/>
+ <enumerator name='NL80211_ATTR_CRIT_PROT_ID' value='179'/>
+ <enumerator name='NL80211_ATTR_MAX_CRIT_PROT_DURATION' value='180'/>
+ <enumerator name='NL80211_ATTR_PEER_AID' value='181'/>
+ <enumerator name='NL80211_ATTR_COALESCE_RULE' value='182'/>
+ <enumerator name='NL80211_ATTR_CH_SWITCH_COUNT' value='183'/>
+ <enumerator name='NL80211_ATTR_CH_SWITCH_BLOCK_TX' value='184'/>
+ <enumerator name='NL80211_ATTR_CSA_IES' value='185'/>
+ <enumerator name='NL80211_ATTR_CSA_C_OFF_BEACON' value='186'/>
+ <enumerator name='NL80211_ATTR_CSA_C_OFF_PRESP' value='187'/>
+ <enumerator name='NL80211_ATTR_RXMGMT_FLAGS' value='188'/>
+ <enumerator name='NL80211_ATTR_STA_SUPPORTED_CHANNELS' value='189'/>
+ <enumerator name='NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES' value='190'/>
+ <enumerator name='NL80211_ATTR_HANDLE_DFS' value='191'/>
+ <enumerator name='NL80211_ATTR_SUPPORT_5_MHZ' value='192'/>
+ <enumerator name='NL80211_ATTR_SUPPORT_10_MHZ' value='193'/>
+ <enumerator name='NL80211_ATTR_OPMODE_NOTIF' value='194'/>
+ <enumerator name='NL80211_ATTR_VENDOR_ID' value='195'/>
+ <enumerator name='NL80211_ATTR_VENDOR_SUBCMD' value='196'/>
+ <enumerator name='NL80211_ATTR_VENDOR_DATA' value='197'/>
+ <enumerator name='NL80211_ATTR_VENDOR_EVENTS' value='198'/>
+ <enumerator name='NL80211_ATTR_QOS_MAP' value='199'/>
+ <enumerator name='NL80211_ATTR_MAC_HINT' value='200'/>
+ <enumerator name='NL80211_ATTR_WIPHY_FREQ_HINT' value='201'/>
+ <enumerator name='NL80211_ATTR_MAX_AP_ASSOC_STA' value='202'/>
+ <enumerator name='NL80211_ATTR_TDLS_PEER_CAPABILITY' value='203'/>
+ <enumerator name='NL80211_ATTR_SOCKET_OWNER' value='204'/>
+ <enumerator name='NL80211_ATTR_CSA_C_OFFSETS_TX' value='205'/>
+ <enumerator name='NL80211_ATTR_MAX_CSA_COUNTERS' value='206'/>
+ <enumerator name='NL80211_ATTR_TDLS_INITIATOR' value='207'/>
+ <enumerator name='NL80211_ATTR_USE_RRM' value='208'/>
+ <enumerator name='NL80211_ATTR_WIPHY_DYN_ACK' value='209'/>
+ <enumerator name='NL80211_ATTR_TSID' value='210'/>
+ <enumerator name='NL80211_ATTR_USER_PRIO' value='211'/>
+ <enumerator name='NL80211_ATTR_ADMITTED_TIME' value='212'/>
+ <enumerator name='NL80211_ATTR_SMPS_MODE' value='213'/>
+ <enumerator name='NL80211_ATTR_OPER_CLASS' value='214'/>
+ <enumerator name='NL80211_ATTR_MAC_MASK' value='215'/>
+ <enumerator name='NL80211_ATTR_WIPHY_SELF_MANAGED_REG' value='216'/>
+ <enumerator name='NL80211_ATTR_EXT_FEATURES' value='217'/>
+ <enumerator name='NL80211_ATTR_SURVEY_RADIO_STATS' value='218'/>
+ <enumerator name='NL80211_ATTR_NETNS_FD' value='219'/>
+ <enumerator name='NL80211_ATTR_SCHED_SCAN_DELAY' value='220'/>
+ <enumerator name='NL80211_ATTR_REG_INDOOR' value='221'/>
+ <enumerator name='NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS' value='222'/>
+ <enumerator name='NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL' value='223'/>
+ <enumerator name='NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS' value='224'/>
+ <enumerator name='NL80211_ATTR_SCHED_SCAN_PLANS' value='225'/>
+ <enumerator name='NL80211_ATTR_PBSS' value='226'/>
+ <enumerator name='NL80211_ATTR_BSS_SELECT' value='227'/>
+ <enumerator name='NL80211_ATTR_STA_SUPPORT_P2P_PS' value='228'/>
+ <enumerator name='NL80211_ATTR_PAD' value='229'/>
+ <enumerator name='NL80211_ATTR_IFTYPE_EXT_CAPA' value='230'/>
+ <enumerator name='NL80211_ATTR_MU_MIMO_GROUP_DATA' value='231'/>
+ <enumerator name='NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR' value='232'/>
+ <enumerator name='NL80211_ATTR_SCAN_START_TIME_TSF' value='233'/>
+ <enumerator name='NL80211_ATTR_SCAN_START_TIME_TSF_BSSID' value='234'/>
+ <enumerator name='NL80211_ATTR_MEASUREMENT_DURATION' value='235'/>
+ <enumerator name='NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY' value='236'/>
+ <enumerator name='NL80211_ATTR_MESH_PEER_AID' value='237'/>
+ <enumerator name='NL80211_ATTR_NAN_MASTER_PREF' value='238'/>
+ <enumerator name='NL80211_ATTR_BANDS' value='239'/>
+ <enumerator name='NL80211_ATTR_NAN_FUNC' value='240'/>
+ <enumerator name='NL80211_ATTR_NAN_MATCH' value='241'/>
+ <enumerator name='NL80211_ATTR_FILS_KEK' value='242'/>
+ <enumerator name='NL80211_ATTR_FILS_NONCES' value='243'/>
+ <enumerator name='NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED' value='244'/>
+ <enumerator name='NL80211_ATTR_BSSID' value='245'/>
+ <enumerator name='NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI' value='246'/>
+ <enumerator name='NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST' value='247'/>
+ <enumerator name='NL80211_ATTR_TIMEOUT_REASON' value='248'/>
+ <enumerator name='NL80211_ATTR_FILS_ERP_USERNAME' value='249'/>
+ <enumerator name='NL80211_ATTR_FILS_ERP_REALM' value='250'/>
+ <enumerator name='NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM' value='251'/>
+ <enumerator name='NL80211_ATTR_FILS_ERP_RRK' value='252'/>
+ <enumerator name='NL80211_ATTR_FILS_CACHE_ID' value='253'/>
+ <enumerator name='NL80211_ATTR_PMK' value='254'/>
+ <enumerator name='NL80211_ATTR_SCHED_SCAN_MULTI' value='255'/>
+ <enumerator name='NL80211_ATTR_SCHED_SCAN_MAX_REQS' value='256'/>
+ <enumerator name='NL80211_ATTR_WANT_1X_4WAY_HS' value='257'/>
+ <enumerator name='NL80211_ATTR_PMKR0_NAME' value='258'/>
+ <enumerator name='NL80211_ATTR_PORT_AUTHORIZED' value='259'/>
+ <enumerator name='NL80211_ATTR_EXTERNAL_AUTH_ACTION' value='260'/>
+ <enumerator name='NL80211_ATTR_EXTERNAL_AUTH_SUPPORT' value='261'/>
+ <enumerator name='NL80211_ATTR_NSS' value='262'/>
+ <enumerator name='NL80211_ATTR_ACK_SIGNAL' value='263'/>
+ <enumerator name='NL80211_ATTR_CONTROL_PORT_OVER_NL80211' value='264'/>
+ <enumerator name='NL80211_ATTR_TXQ_STATS' value='265'/>
+ <enumerator name='NL80211_ATTR_TXQ_LIMIT' value='266'/>
+ <enumerator name='NL80211_ATTR_TXQ_MEMORY_LIMIT' value='267'/>
+ <enumerator name='NL80211_ATTR_TXQ_QUANTUM' value='268'/>
+ <enumerator name='NL80211_ATTR_HE_CAPABILITY' value='269'/>
+ <enumerator name='NL80211_ATTR_FTM_RESPONDER' value='270'/>
+ <enumerator name='NL80211_ATTR_FTM_RESPONDER_STATS' value='271'/>
+ <enumerator name='NL80211_ATTR_TIMEOUT' value='272'/>
+ <enumerator name='NL80211_ATTR_PEER_MEASUREMENTS' value='273'/>
+ <enumerator name='NL80211_ATTR_AIRTIME_WEIGHT' value='274'/>
+ <enumerator name='NL80211_ATTR_STA_TX_POWER_SETTING' value='275'/>
+ <enumerator name='NL80211_ATTR_STA_TX_POWER' value='276'/>
+ <enumerator name='NL80211_ATTR_SAE_PASSWORD' value='277'/>
+ <enumerator name='NL80211_ATTR_TWT_RESPONDER' value='278'/>
+ <enumerator name='NL80211_ATTR_HE_OBSS_PD' value='279'/>
+ <enumerator name='NL80211_ATTR_WIPHY_EDMG_CHANNELS' value='280'/>
+ <enumerator name='NL80211_ATTR_WIPHY_EDMG_BW_CONFIG' value='281'/>
+ <enumerator name='NL80211_ATTR_VLAN_ID' value='282'/>
+ <enumerator name='NL80211_ATTR_HE_BSS_COLOR' value='283'/>
+ <enumerator name='NL80211_ATTR_IFTYPE_AKM_SUITES' value='284'/>
+ <enumerator name='__NL80211_ATTR_AFTER_LAST' value='285'/>
+ <enumerator name='NUM_NL80211_ATTR' value='285'/>
+ <enumerator name='NL80211_ATTR_MAX' value='284'/>
+ </enum-decl>
+ <class-decl name='cfg80211_ft_event_params' size-in-bits='320' is-struct='yes' visibility='default' filepath='include/net/cfg80211.h' line='6479' column='1' id='cc4b6920'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='ies' type-id='bbaf3419' visibility='default' filepath='include/net/cfg80211.h' line='6480' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='ies_len' type-id='b59d7dce' visibility='default' filepath='include/net/cfg80211.h' line='6481' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='target_ap' type-id='bbaf3419' visibility='default' filepath='include/net/cfg80211.h' line='6482' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='ric_ies' type-id='bbaf3419' visibility='default' filepath='include/net/cfg80211.h' line='6483' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='ric_ies_len' type-id='b59d7dce' visibility='default' filepath='include/net/cfg80211.h' line='6484' column='1'/>
+ </data-member>
+ </class-decl>
+ <pointer-type-def type-id='cc4b6920' size-in-bits='64' id='76db5996'/>
+ <function-decl name='__cfg80211_alloc_event_skb' mangled-name='__cfg80211_alloc_event_skb' filepath='net/wireless/nl80211.c' line='9288' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__cfg80211_alloc_event_skb'>
+ <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/nl80211.c' line='9288' column='1'/>
+ <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/nl80211.c' line='9289' column='1'/>
+ <parameter type-id='187e1e49' name='cmd' filepath='net/wireless/nl80211.c' line='9290' column='1'/>
+ <parameter type-id='320b0ded' name='attr' filepath='net/wireless/nl80211.c' line='9291' column='1'/>
+ <parameter type-id='95e97e5e' name='vendor_event_idx' filepath='net/wireless/nl80211.c' line='9292' column='1'/>
+ <parameter type-id='95e97e5e' name='approxlen' filepath='net/wireless/nl80211.c' line='9293' column='1'/>
+ <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='9293' column='1'/>
+ <return type-id='0fbf3cfd'/>
+ </function-decl>
+ <function-decl name='__cfg80211_send_event_skb' mangled-name='__cfg80211_send_event_skb' filepath='net/wireless/nl80211.c' line='9320' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__cfg80211_send_event_skb'>
+ <parameter type-id='0fbf3cfd' name='skb' filepath='net/wireless/nl80211.c' line='9320' column='1'/>
+ <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='9320' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='__cfg80211_alloc_reply_skb' mangled-name='__cfg80211_alloc_reply_skb' filepath='net/wireless/nl80211.c' line='12726' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__cfg80211_alloc_reply_skb'>
+ <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/nl80211.c' line='12726' column='1'/>
+ <parameter type-id='187e1e49' name='cmd' filepath='net/wireless/nl80211.c' line='12727' column='1'/>
+ <parameter type-id='320b0ded' name='attr' filepath='net/wireless/nl80211.c' line='12728' column='1'/>
+ <parameter type-id='95e97e5e' name='approxlen' filepath='net/wireless/nl80211.c' line='12729' column='1'/>
+ <return type-id='0fbf3cfd'/>
+ </function-decl>
+ <function-decl name='cfg80211_vendor_cmd_reply' mangled-name='cfg80211_vendor_cmd_reply' filepath='net/wireless/nl80211.c' line='12743' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_vendor_cmd_reply'>
+ <parameter type-id='0fbf3cfd' name='skb' filepath='net/wireless/nl80211.c' line='12743' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='cfg80211_rx_unprot_mlme_mgmt' mangled-name='cfg80211_rx_unprot_mlme_mgmt' filepath='net/wireless/nl80211.c' line='14547' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_rx_unprot_mlme_mgmt'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='14547' column='1'/>
+ <parameter type-id='bbaf3419' name='buf' filepath='net/wireless/nl80211.c' line='14547' column='1'/>
+ <parameter type-id='b59d7dce' name='len' filepath='net/wireless/nl80211.c' line='14548' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='cfg80211_ready_on_channel' mangled-name='cfg80211_ready_on_channel' filepath='net/wireless/nl80211.c' line='15004' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_ready_on_channel'>
+ <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/nl80211.c' line='15004' column='1'/>
+ <parameter type-id='91ce1af9' name='cookie' filepath='net/wireless/nl80211.c' line='15004' column='1'/>
+ <parameter type-id='ec00acfb' name='chan' filepath='net/wireless/nl80211.c' line='15005' column='1'/>
+ <parameter type-id='f0981eeb' name='duration' filepath='net/wireless/nl80211.c' line='15006' column='1'/>
+ <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='15006' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='cfg80211_remain_on_channel_expired' mangled-name='cfg80211_remain_on_channel_expired' filepath='net/wireless/nl80211.c' line='15018' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_remain_on_channel_expired'>
+ <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/nl80211.c' line='15018' column='1'/>
+ <parameter type-id='91ce1af9' name='cookie' filepath='net/wireless/nl80211.c' line='15018' column='1'/>
+ <parameter type-id='ec00acfb' name='chan' filepath='net/wireless/nl80211.c' line='15019' column='1'/>
+ <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='15020' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='cfg80211_new_sta' mangled-name='cfg80211_new_sta' filepath='net/wireless/nl80211.c' line='15031' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_new_sta'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='15031' column='1'/>
+ <parameter type-id='bbaf3419' name='mac_addr' filepath='net/wireless/nl80211.c' line='15031' column='1'/>
+ <parameter type-id='7af1dc96' name='sinfo' filepath='net/wireless/nl80211.c' line='15032' column='1'/>
+ <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='15032' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='cfg80211_del_sta_sinfo' mangled-name='cfg80211_del_sta_sinfo' filepath='net/wireless/nl80211.c' line='15055' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_del_sta_sinfo'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='15055' column='1'/>
+ <parameter type-id='bbaf3419' name='mac_addr' filepath='net/wireless/nl80211.c' line='15055' column='1'/>
+ <parameter type-id='7af1dc96' name='sinfo' filepath='net/wireless/nl80211.c' line='15056' column='1'/>
+ <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='15056' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='cfg80211_mgmt_tx_status' mangled-name='cfg80211_mgmt_tx_status' filepath='net/wireless/nl80211.c' line='15239' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_mgmt_tx_status'>
+ <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/nl80211.c' line='15239' column='1'/>
+ <parameter type-id='91ce1af9' name='cookie' filepath='net/wireless/nl80211.c' line='15239' column='1'/>
+ <parameter type-id='bbaf3419' name='buf' filepath='net/wireless/nl80211.c' line='15240' column='1'/>
+ <parameter type-id='b59d7dce' name='len' filepath='net/wireless/nl80211.c' line='15240' column='1'/>
+ <parameter type-id='b50a4934' name='ack' filepath='net/wireless/nl80211.c' line='15240' column='1'/>
+ <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='15240' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='cfg80211_gtk_rekey_notify' mangled-name='cfg80211_gtk_rekey_notify' filepath='net/wireless/nl80211.c' line='15553' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_gtk_rekey_notify'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='15553' column='1'/>
+ <parameter type-id='bbaf3419' name='bssid' filepath='net/wireless/nl80211.c' line='15553' column='1'/>
+ <parameter type-id='bbaf3419' name='replay_ctr' filepath='net/wireless/nl80211.c' line='15554' column='1'/>
+ <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='15554' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='cfg80211_pmksa_candidate_notify' mangled-name='cfg80211_pmksa_candidate_notify' filepath='net/wireless/nl80211.c' line='15610' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_pmksa_candidate_notify'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='15610' column='1'/>
+ <parameter type-id='95e97e5e' name='index' filepath='net/wireless/nl80211.c' line='15610' column='1'/>
+ <parameter type-id='bbaf3419' name='bssid' filepath='net/wireless/nl80211.c' line='15611' column='1'/>
+ <parameter type-id='b50a4934' name='preauth' filepath='net/wireless/nl80211.c' line='15611' column='1'/>
+ <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='15611' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='cfg80211_ch_switch_notify' mangled-name='cfg80211_ch_switch_notify' filepath='net/wireless/nl80211.c' line='15662' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_ch_switch_notify'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='15662' column='1'/>
+ <parameter type-id='0953fbfe' name='chandef' filepath='net/wireless/nl80211.c' line='15663' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='cfg80211_tdls_oper_request' mangled-name='cfg80211_tdls_oper_request' filepath='net/wireless/nl80211.c' line='16064' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_tdls_oper_request'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='16064' column='1'/>
+ <parameter type-id='bbaf3419' name='peer' filepath='net/wireless/nl80211.c' line='16064' column='1'/>
+ <parameter type-id='ee1b00fc' name='oper' filepath='net/wireless/nl80211.c' line='16065' column='1'/>
+ <parameter type-id='1dc6a898' name='reason_code' filepath='net/wireless/nl80211.c' line='16066' column='1'/>
+ <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16066' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='cfg80211_ft_event' mangled-name='cfg80211_ft_event' filepath='net/wireless/nl80211.c' line='16168' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_ft_event'>
+ <parameter type-id='68a2d05b' name='netdev' filepath='net/wireless/nl80211.c' line='16168' column='1'/>
+ <parameter type-id='76db5996' name='ft_event' filepath='net/wireless/nl80211.c' line='16169' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='cfg80211_ap_stopped' mangled-name='cfg80211_ap_stopped' filepath='net/wireless/nl80211.c' line='16250' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_ap_stopped'>
+ <parameter type-id='68a2d05b' name='netdev' filepath='net/wireless/nl80211.c' line='16250' column='1'/>
+ <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16250' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='cfg80211_external_auth_request' mangled-name='cfg80211_external_auth_request' filepath='net/wireless/nl80211.c' line='16290' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_external_auth_request'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='16290' column='1'/>
+ <parameter type-id='2b041d55' name='params' filepath='net/wireless/nl80211.c' line='16291' column='1'/>
+ <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16292' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='cfg80211_update_owe_info_event' mangled-name='cfg80211_update_owe_info_event' filepath='net/wireless/nl80211.c' line='16331' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_update_owe_info_event'>
+ <parameter type-id='68a2d05b' name='netdev' filepath='net/wireless/nl80211.c' line='16331' column='1'/>
+ <parameter type-id='37104a66' name='owe_info' filepath='net/wireless/nl80211.c' line='16332' column='1'/>
+ <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16333' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='net/wireless/reg.c' language='LANG_C89'>
+ <enum-decl name='nl80211_channel_type' filepath='include/uapi/linux/nl80211.h' line='4178' column='1' id='9e446de7'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='NL80211_CHAN_NO_HT' value='0'/>
+ <enumerator name='NL80211_CHAN_HT20' value='1'/>
+ <enumerator name='NL80211_CHAN_HT40MINUS' value='2'/>
+ <enumerator name='NL80211_CHAN_HT40PLUS' value='3'/>
+ </enum-decl>
+ <pointer-type-def type-id='5c28f25e' size-in-bits='64' id='c24e05b4'/>
+ <function-decl name='regulatory_set_wiphy_regd' mangled-name='regulatory_set_wiphy_regd' filepath='net/wireless/reg.c' line='3705' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulatory_set_wiphy_regd'>
+ <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/reg.c' line='3705' column='1'/>
+ <parameter type-id='c24e05b4' name='rd' filepath='net/wireless/reg.c' line='3706' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='cfg80211_chandef_create' mangled-name='cfg80211_chandef_create' filepath='include/net/cfg80211.h' line='609' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_chandef_create'>
+ <parameter type-id='0953fbfe'/>
+ <parameter type-id='ec00acfb'/>
+ <parameter type-id='9e446de7'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='net/wireless/scan.c' language='LANG_C89'>
+ <enum-decl name='ieee80211_privacy' filepath='include/net/cfg80211.h' line='226' column='1' id='d2b455cb'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='IEEE80211_PRIVACY_ON' value='0'/>
+ <enumerator name='IEEE80211_PRIVACY_OFF' value='1'/>
+ <enumerator name='IEEE80211_PRIVACY_ANY' value='2'/>
+ </enum-decl>
+ <class-decl name='cfg80211_inform_bss' size-in-bits='384' is-struct='yes' visibility='default' filepath='include/net/cfg80211.h' line='2030' column='1' id='616d6efe'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='chan' type-id='ec00acfb' visibility='default' filepath='include/net/cfg80211.h' line='2031' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='scan_width' type-id='95d46034' visibility='default' filepath='include/net/cfg80211.h' line='2032' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='96'>
+ <var-decl name='signal' type-id='a7832498' visibility='default' filepath='include/net/cfg80211.h' line='2033' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='boottime_ns' type-id='91ce1af9' visibility='default' filepath='include/net/cfg80211.h' line='2034' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='parent_tsf' type-id='91ce1af9' visibility='default' filepath='include/net/cfg80211.h' line='2035' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='parent_bssid' type-id='cf1a4160' visibility='default' filepath='include/net/cfg80211.h' line='2036' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='304'>
+ <var-decl name='chains' type-id='f9b06939' visibility='default' filepath='include/net/cfg80211.h' line='2037' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='312'>
+ <var-decl name='chain_signal' type-id='da004b74' visibility='default' filepath='include/net/cfg80211.h' line='2038' column='1'/>
+ </data-member>
+ </class-decl>
+ <enum-decl name='cfg80211_bss_frame_type' filepath='include/net/cfg80211.h' line='5195' column='1' id='b556f108'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='CFG80211_BSS_FTYPE_UNKNOWN' value='0'/>
+ <enumerator name='CFG80211_BSS_FTYPE_BEACON' value='1'/>
+ <enumerator name='CFG80211_BSS_FTYPE_PRESP' value='2'/>
+ </enum-decl>
+ <class-decl name='ieee80211_mgmt' size-in-bits='400' is-struct='yes' visibility='default' filepath='include/linux/ieee80211.h' line='894' column='1' id='1aa7b3b9'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='frame_control' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='895' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='16'>
+ <var-decl name='duration' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='896' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='32'>
+ <var-decl name='da' type-id='cf1a4160' visibility='default' filepath='include/linux/ieee80211.h' line='897' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='80'>
+ <var-decl name='sa' type-id='cf1a4160' visibility='default' filepath='include/linux/ieee80211.h' line='898' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='bssid' type-id='cf1a4160' visibility='default' filepath='include/linux/ieee80211.h' line='899' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='176'>
+ <var-decl name='seq_ctrl' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='900' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='u' type-id='0740a05b' visibility='default' filepath='include/linux/ieee80211.h' line='1053' column='1'/>
+ </data-member>
+ </class-decl>
+ <union-decl name='__anonymous_union__' size-in-bits='208' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='901' column='1' id='0740a05b'>
+ <data-member access='public'>
+ <var-decl name='auth' type-id='8566e136' visibility='default' filepath='include/linux/ieee80211.h' line='908' column='1'/>
+ </data-member>
+ <data-member access='public'>
+ <var-decl name='deauth' type-id='4c024fcc' visibility='default' filepath='include/linux/ieee80211.h' line='911' column='1'/>
+ </data-member>
+ <data-member access='public'>
+ <var-decl name='assoc_req' type-id='cf904dca' visibility='default' filepath='include/linux/ieee80211.h' line='917' column='1'/>
+ </data-member>
+ <data-member access='public'>
+ <var-decl name='assoc_resp' type-id='316274c6' visibility='default' filepath='include/linux/ieee80211.h' line='924' column='1'/>
+ </data-member>
+ <data-member access='public'>
+ <var-decl name='reassoc_resp' type-id='316274c6' visibility='default' filepath='include/linux/ieee80211.h' line='924' column='1'/>
+ </data-member>
+ <data-member access='public'>
+ <var-decl name='reassoc_req' type-id='41112f2f' visibility='default' filepath='include/linux/ieee80211.h' line='931' column='1'/>
+ </data-member>
+ <data-member access='public'>
+ <var-decl name='disassoc' type-id='4c024fcc' visibility='default' filepath='include/linux/ieee80211.h' line='934' column='1'/>
+ </data-member>
+ <data-member access='public'>
+ <var-decl name='beacon' type-id='00017149' visibility='default' filepath='include/linux/ieee80211.h' line='942' column='1'/>
+ </data-member>
+ <data-member access='public'>
+ <var-decl name='probe_req' type-id='f2111995' visibility='default' filepath='include/linux/ieee80211.h' line='946' column='1'/>
+ </data-member>
+ <data-member access='public'>
+ <var-decl name='probe_resp' type-id='00017149' visibility='default' filepath='include/linux/ieee80211.h' line='954' column='1'/>
+ </data-member>
+ <data-member access='public'>
+ <var-decl name='action' type-id='ae49dd9b' visibility='default' filepath='include/linux/ieee80211.h' line='1052' column='1'/>
+ </data-member>
+ </union-decl>
+ <class-decl name='__anonymous_struct__' size-in-bits='48' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='902' column='1' id='8566e136'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='auth_alg' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='903' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='16'>
+ <var-decl name='auth_transaction' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='904' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='32'>
+ <var-decl name='status_code' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='905' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='48'>
+ <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='907' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='__anonymous_struct__1' size-in-bits='16' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='909' column='1' id='4c024fcc'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='reason_code' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='910' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='__anonymous_struct__2' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='912' column='1' id='cf904dca'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='capab_info' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='913' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='16'>
+ <var-decl name='listen_interval' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='914' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='32'>
+ <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='916' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='__anonymous_struct__3' size-in-bits='48' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='918' column='1' id='316274c6'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='capab_info' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='919' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='16'>
+ <var-decl name='status_code' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='920' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='32'>
+ <var-decl name='aid' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='921' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='48'>
+ <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='923' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='__anonymous_struct__4' size-in-bits='80' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='925' column='1' id='41112f2f'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='capab_info' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='926' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='16'>
+ <var-decl name='listen_interval' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='927' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='32'>
+ <var-decl name='current_ap' type-id='cf1a4160' visibility='default' filepath='include/linux/ieee80211.h' line='928' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='80'>
+ <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='930' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='__anonymous_struct__6' size-in-bits='96' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='935' column='1' id='00017149'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='timestamp' type-id='a30e8d1f' visibility='default' filepath='include/linux/ieee80211.h' line='936' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='beacon_int' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='937' column='1'/>
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+ <var-decl name='toa_error' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='1048' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='152'>
+ <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='1049' column='1'/>
+ </data-member>
+ </class-decl>
+ <pointer-type-def type-id='616d6efe' size-in-bits='64' id='6ff43814'/>
+ <pointer-type-def type-id='b1493ece' size-in-bits='64' id='40cd17b4'/>
+ <pointer-type-def type-id='1aa7b3b9' size-in-bits='64' id='57a568d1'/>
+ <function-decl name='cfg80211_scan_done' mangled-name='cfg80211_scan_done' filepath='net/wireless/scan.c' line='462' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_scan_done'>
+ <parameter type-id='a9e8b173' name='request' filepath='net/wireless/scan.c' line='462' column='1'/>
+ <parameter type-id='40cd17b4' name='info' filepath='net/wireless/scan.c' line='463' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='cfg80211_sched_scan_results' mangled-name='cfg80211_sched_scan_results' filepath='net/wireless/scan.c' line='564' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_sched_scan_results'>
+ <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/scan.c' line='564' column='1'/>
+ <parameter type-id='91ce1af9' name='reqid' filepath='net/wireless/scan.c' line='564' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='cfg80211_get_bss' mangled-name='cfg80211_get_bss' filepath='net/wireless/scan.c' line='855' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_get_bss'>
+ <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/scan.c' line='855' column='1'/>
+ <parameter type-id='ec00acfb' name='channel' filepath='net/wireless/scan.c' line='856' column='1'/>
+ <parameter type-id='bbaf3419' name='bssid' filepath='net/wireless/scan.c' line='857' column='1'/>
+ <parameter type-id='bbaf3419' name='ssid' filepath='net/wireless/scan.c' line='858' column='1'/>
+ <parameter type-id='b59d7dce' name='ssid_len' filepath='net/wireless/scan.c' line='858' column='1'/>
+ <parameter type-id='cb952348' name='bss_type' filepath='net/wireless/scan.c' line='859' column='1'/>
+ <parameter type-id='d2b455cb' name='privacy' filepath='net/wireless/scan.c' line='860' column='1'/>
+ <return type-id='bda81d86'/>
+ </function-decl>
+ <function-decl name='cfg80211_inform_bss_data' mangled-name='cfg80211_inform_bss_data' filepath='net/wireless/scan.c' line='1493' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_inform_bss_data'>
+ <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/scan.c' line='1493' column='1'/>
+ <parameter type-id='6ff43814' name='data' filepath='net/wireless/scan.c' line='1494' column='1'/>
+ <parameter type-id='b556f108' name='ftype' filepath='net/wireless/scan.c' line='1495' column='1'/>
+ <parameter type-id='bbaf3419' name='bssid' filepath='net/wireless/scan.c' line='1496' column='1'/>
+ <parameter type-id='91ce1af9' name='tsf' filepath='net/wireless/scan.c' line='1496' column='1'/>
+ <parameter type-id='1dc6a898' name='capability' filepath='net/wireless/scan.c' line='1496' column='1'/>
+ <parameter type-id='1dc6a898' name='beacon_interval' filepath='net/wireless/scan.c' line='1497' column='1'/>
+ <parameter type-id='bbaf3419' name='ie' filepath='net/wireless/scan.c' line='1497' column='1'/>
+ <parameter type-id='b59d7dce' name='ielen' filepath='net/wireless/scan.c' line='1497' column='1'/>
+ <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/scan.c' line='1498' column='1'/>
+ <return type-id='bda81d86'/>
+ </function-decl>
+ <function-decl name='cfg80211_inform_bss_frame_data' mangled-name='cfg80211_inform_bss_frame_data' filepath='net/wireless/scan.c' line='1714' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_inform_bss_frame_data'>
+ <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/scan.c' line='1714' column='1'/>
+ <parameter type-id='6ff43814' name='data' filepath='net/wireless/scan.c' line='1715' column='1'/>
+ <parameter type-id='57a568d1' name='mgmt' filepath='net/wireless/scan.c' line='1716' column='1'/>
+ <parameter type-id='b59d7dce' name='len' filepath='net/wireless/scan.c' line='1716' column='1'/>
+ <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/scan.c' line='1717' column='1'/>
+ <return type-id='bda81d86'/>
+ </function-decl>
+ <function-decl name='cfg80211_unlink_bss' mangled-name='cfg80211_unlink_bss' filepath='net/wireless/scan.c' line='1793' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_unlink_bss'>
+ <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/scan.c' line='1793' column='1'/>
+ <parameter type-id='bda81d86' name='pub' filepath='net/wireless/scan.c' line='1793' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='net/wireless/sme.c' language='LANG_C89'>
+ <enum-decl name='__anonymous_enum__' is-anonymous='yes' filepath='net/wireless/sme.c' line='34' column='1' id='08f5ca1c'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='CFG80211_CONN_SCANNING' value='0'/>
+ <enumerator name='CFG80211_CONN_SCAN_AGAIN' value='1'/>
+ <enumerator name='CFG80211_CONN_AUTHENTICATE_NEXT' value='2'/>
+ <enumerator name='CFG80211_CONN_AUTHENTICATING' value='3'/>
+ <enumerator name='CFG80211_CONN_AUTH_FAILED_TIMEOUT' value='4'/>
+ <enumerator name='CFG80211_CONN_ASSOCIATE_NEXT' value='5'/>
+ <enumerator name='CFG80211_CONN_ASSOCIATING' value='6'/>
+ <enumerator name='CFG80211_CONN_ASSOC_FAILED' value='7'/>
+ <enumerator name='CFG80211_CONN_ASSOC_FAILED_TIMEOUT' value='8'/>
+ <enumerator name='CFG80211_CONN_DEAUTH' value='9'/>
+ <enumerator name='CFG80211_CONN_ABANDON' value='10'/>
+ <enumerator name='CFG80211_CONN_CONNECTED' value='11'/>
+ </enum-decl>
+ <class-decl name='cfg80211_connect_resp_params' size-in-bits='896' is-struct='yes' visibility='default' filepath='include/net/cfg80211.h' line='5799' column='1' id='77e8064c'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='status' type-id='95e97e5e' visibility='default' filepath='include/net/cfg80211.h' line='5800' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='bssid' type-id='bbaf3419' visibility='default' filepath='include/net/cfg80211.h' line='5801' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='bss' type-id='bda81d86' visibility='default' filepath='include/net/cfg80211.h' line='5802' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='req_ie' type-id='bbaf3419' visibility='default' filepath='include/net/cfg80211.h' line='5803' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='req_ie_len' type-id='b59d7dce' visibility='default' filepath='include/net/cfg80211.h' line='5804' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='320'>
+ <var-decl name='resp_ie' type-id='bbaf3419' visibility='default' filepath='include/net/cfg80211.h' line='5805' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='384'>
+ <var-decl name='resp_ie_len' type-id='b59d7dce' visibility='default' filepath='include/net/cfg80211.h' line='5806' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='448'>
+ <var-decl name='fils' type-id='73962ae2' visibility='default' filepath='include/net/cfg80211.h' line='5807' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='832'>
+ <var-decl name='timeout_reason' type-id='e4422617' visibility='default' filepath='include/net/cfg80211.h' line='5808' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='cfg80211_fils_resp_params' size-in-bits='384' is-struct='yes' visibility='default' filepath='include/net/cfg80211.h' line='5763' column='1' id='73962ae2'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='kek' type-id='bbaf3419' visibility='default' filepath='include/net/cfg80211.h' line='5764' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='kek_len' type-id='b59d7dce' visibility='default' filepath='include/net/cfg80211.h' line='5765' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='update_erp_next_seq_num' type-id='b50a4934' visibility='default' filepath='include/net/cfg80211.h' line='5766' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='144'>
+ <var-decl name='erp_next_seq_num' type-id='1dc6a898' visibility='default' filepath='include/net/cfg80211.h' line='5767' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='pmk' type-id='bbaf3419' visibility='default' filepath='include/net/cfg80211.h' line='5768' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='pmk_len' type-id='b59d7dce' visibility='default' filepath='include/net/cfg80211.h' line='5769' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='320'>
+ <var-decl name='pmkid' type-id='bbaf3419' visibility='default' filepath='include/net/cfg80211.h' line='5770' column='1'/>
+ </data-member>
+ </class-decl>
+ <enum-decl name='nl80211_timeout_reason' filepath='include/uapi/linux/nl80211.h' line='5513' column='1' id='e4422617'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='NL80211_TIMEOUT_UNSPECIFIED' value='0'/>
+ <enumerator name='NL80211_TIMEOUT_SCAN' value='1'/>
+ <enumerator name='NL80211_TIMEOUT_AUTH' value='2'/>
+ <enumerator name='NL80211_TIMEOUT_ASSOC' value='3'/>
+ </enum-decl>
+ <class-decl name='cfg80211_roam_info' size-in-bits='832' is-struct='yes' visibility='default' filepath='include/net/cfg80211.h' line='5955' column='1' id='883d1dc6'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='channel' type-id='ec00acfb' visibility='default' filepath='include/net/cfg80211.h' line='5956' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='bss' type-id='bda81d86' visibility='default' filepath='include/net/cfg80211.h' line='5957' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='bssid' type-id='bbaf3419' visibility='default' filepath='include/net/cfg80211.h' line='5958' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='req_ie' type-id='bbaf3419' visibility='default' filepath='include/net/cfg80211.h' line='5959' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='req_ie_len' type-id='b59d7dce' visibility='default' filepath='include/net/cfg80211.h' line='5960' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='320'>
+ <var-decl name='resp_ie' type-id='bbaf3419' visibility='default' filepath='include/net/cfg80211.h' line='5961' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='384'>
+ <var-decl name='resp_ie_len' type-id='b59d7dce' visibility='default' filepath='include/net/cfg80211.h' line='5962' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='448'>
+ <var-decl name='fils' type-id='73962ae2' visibility='default' filepath='include/net/cfg80211.h' line='5963' column='1'/>
+ </data-member>
+ </class-decl>
+ <pointer-type-def type-id='77e8064c' size-in-bits='64' id='b1d9990a'/>
+ <pointer-type-def type-id='883d1dc6' size-in-bits='64' id='e88825dc'/>
+ <function-decl name='cfg80211_connect_done' mangled-name='cfg80211_connect_done' filepath='net/wireless/sme.c' line='788' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_connect_done'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/sme.c' line='788' column='1'/>
+ <parameter type-id='b1d9990a' name='params' filepath='net/wireless/sme.c' line='789' column='1'/>
+ <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/sme.c' line='790' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='cfg80211_roamed' mangled-name='cfg80211_roamed' filepath='net/wireless/sme.c' line='932' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_roamed'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/sme.c' line='932' column='1'/>
+ <parameter type-id='e88825dc' name='info' filepath='net/wireless/sme.c' line='932' column='1'/>
+ <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/sme.c' line='933' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='cfg80211_disconnected' mangled-name='cfg80211_disconnected' filepath='net/wireless/sme.c' line='1113' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_disconnected'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/sme.c' line='1113' column='1'/>
+ <parameter type-id='1dc6a898' name='reason' filepath='net/wireless/sme.c' line='1113' column='1'/>
+ <parameter type-id='bbaf3419' name='ie' filepath='net/wireless/sme.c' line='1114' column='1'/>
+ <parameter type-id='b59d7dce' name='ie_len' filepath='net/wireless/sme.c' line='1114' column='1'/>
+ <parameter type-id='b50a4934' name='locally_generated' filepath='net/wireless/sme.c' line='1115' column='1'/>
+ <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/sme.c' line='1115' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='net/wireless/util.c' language='LANG_C89'>
+ <pointer-type-def type-id='5ece574c' size-in-bits='64' id='185e765a'/>
+ <function-decl name='ieee80211_channel_to_frequency' mangled-name='ieee80211_channel_to_frequency' filepath='net/wireless/util.c' line='71' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_channel_to_frequency'>
+ <parameter type-id='95e97e5e' name='chan' filepath='net/wireless/util.c' line='71' column='1'/>
+ <parameter type-id='3eaa0294' name='band' filepath='net/wireless/util.c' line='71' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='ieee80211_frequency_to_channel' mangled-name='ieee80211_frequency_to_channel' filepath='net/wireless/util.c' line='101' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_frequency_to_channel'>
+ <parameter type-id='95e97e5e' name='freq' filepath='net/wireless/util.c' line='101' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='ieee80211_get_channel' mangled-name='ieee80211_get_channel' filepath='net/wireless/util.c' line='119' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_get_channel'>
+ <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/util.c' line='119' column='1'/>
+ <parameter type-id='95e97e5e' name='freq' filepath='net/wireless/util.c' line='119' column='1'/>
+ <return type-id='ec00acfb'/>
+ </function-decl>
+ <function-decl name='ieee80211_hdrlen' mangled-name='ieee80211_hdrlen' filepath='net/wireless/util.c' line='386' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_hdrlen'>
+ <parameter type-id='23119536' name='fc' filepath='net/wireless/util.c' line='386' column='1'/>
+ <return type-id='f0981eeb'/>
+ </function-decl>
+ <function-decl name='cfg80211_calculate_bitrate' mangled-name='cfg80211_calculate_bitrate' filepath='net/wireless/util.c' line='1306' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_calculate_bitrate'>
+ <parameter type-id='185e765a' name='rate' filepath='net/wireless/util.c' line='1306' column='1'/>
+ <return type-id='19c2251e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='net/wireless/wext-core.c' language='LANG_C89'>
+ <function-decl name='wireless_send_event' mangled-name='wireless_send_event' filepath='net/wireless/wext-core.c' line='451' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wireless_send_event'>
+ <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/wext-core.c' line='451' column='1'/>
+ <parameter type-id='f0981eeb' name='cmd' filepath='net/wireless/wext-core.c' line='452' column='1'/>
+ <parameter type-id='00e2a7ce' name='wrqu' filepath='net/wireless/wext-core.c' line='453' column='1'/>
+ <parameter type-id='80f4b756' name='extra' filepath='net/wireless/wext-core.c' line='454' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='net/xfrm/xfrm_policy.c' language='LANG_C89'>
+ <function-decl name='__xfrm_policy_check' mangled-name='__xfrm_policy_check' filepath='net/xfrm/xfrm_policy.c' line='2319' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__xfrm_policy_check'>
+ <parameter type-id='f772df6d' name='sk' filepath='net/xfrm/xfrm_policy.c' line='2319' column='1'/>
+ <parameter type-id='95e97e5e' name='dir' filepath='net/xfrm/xfrm_policy.c' line='2319' column='1'/>
+ <parameter type-id='0fbf3cfd' name='skb' filepath='net/xfrm/xfrm_policy.c' line='2319' column='1'/>
+ <parameter type-id='8efea9e5' name='family' filepath='net/xfrm/xfrm_policy.c' line='2320' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='security/inode.c' language='LANG_C89'>
+ <function-decl name='securityfs_create_file' mangled-name='securityfs_create_file' filepath='security/inode.c' line='199' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='securityfs_create_file'>
+ <parameter type-id='80f4b756' name='name' filepath='security/inode.c' line='199' column='1'/>
+ <parameter type-id='2594b00f' name='mode' filepath='security/inode.c' line='199' column='1'/>
+ <parameter type-id='27675065' name='parent' filepath='security/inode.c' line='200' column='1'/>
+ <parameter type-id='eaa32e2f' name='data' filepath='security/inode.c' line='200' column='1'/>
+ <parameter type-id='61758ee5' name='fops' filepath='security/inode.c' line='201' column='1'/>
+ <return type-id='27675065'/>
+ </function-decl>
+ <function-decl name='securityfs_create_dir' mangled-name='securityfs_create_dir' filepath='security/inode.c' line='227' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='securityfs_create_dir'>
+ <parameter type-id='80f4b756' name='name' filepath='security/inode.c' line='227' column='1'/>
+ <parameter type-id='27675065' name='parent' filepath='security/inode.c' line='227' column='1'/>
+ <return type-id='27675065'/>
+ </function-decl>
+ <function-decl name='securityfs_remove' mangled-name='securityfs_remove' filepath='security/inode.c' line='294' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='securityfs_remove'>
+ <parameter type-id='27675065' name='dentry' filepath='security/inode.c' line='294' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='security/keys/proc.c' language='LANG_C89'>
+ <qualified-type-def type-id='2a8a6332' const='yes' id='8552664d'/>
+ <pointer-type-def type-id='8552664d' size-in-bits='64' id='47b73425'/>
+ <qualified-type-def type-id='dec44472' const='yes' id='f213bd85'/>
+ <pointer-type-def type-id='f213bd85' size-in-bits='64' id='c4139a7d'/>
+ <function-decl name='rb_first' mangled-name='rb_first' filepath='include/linux/rbtree.h' line='84' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rb_first'>
+ <parameter type-id='c4139a7d'/>
+ <return type-id='e6532500'/>
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+ </data-member>
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+ <var-decl name='key' type-id='0d5c291d' visibility='default' filepath='include/sound/jack.h' line='86' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1408'>
+ <var-decl name='private_data' type-id='eaa32e2f' visibility='default' filepath='include/sound/jack.h' line='88' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1472'>
+ <var-decl name='private_free' type-id='5a798ea9' visibility='default' filepath='include/sound/jack.h' line='89' column='1'/>
+ </data-member>
+ </class-decl>
+ <enum-decl name='snd_jack_types' filepath='include/sound/jack.h' line='52' column='1' id='7851d449'>
+ <underlying-type type-id='9cac1fee'/>
+ <enumerator name='SND_JACK_HEADPHONE' value='1'/>
+ <enumerator name='SND_JACK_MICROPHONE' value='2'/>
+ <enumerator name='SND_JACK_HEADSET' value='3'/>
+ <enumerator name='SND_JACK_LINEOUT' value='4'/>
+ <enumerator name='SND_JACK_MECHANICAL' value='8'/>
+ <enumerator name='SND_JACK_VIDEOOUT' value='16'/>
+ <enumerator name='SND_JACK_AVOUT' value='20'/>
+ <enumerator name='SND_JACK_LINEIN' value='32'/>
+ <enumerator name='SND_JACK_OC_HPHL' value='64'/>
+ <enumerator name='SND_JACK_OC_HPHR' value='128'/>
+ <enumerator name='SND_JACK_UNSUPPORTED' value='256'/>
+ <enumerator name='SND_JACK_MICROPHONE2' value='512'/>
+ <enumerator name='SND_JACK_ANC_HEADPHONE' value='515'/>
+ <enumerator name='SND_JACK_BTN_0' value='32768'/>
+ <enumerator name='SND_JACK_BTN_1' value='16384'/>
+ <enumerator name='SND_JACK_BTN_2' value='8192'/>
+ <enumerator name='SND_JACK_BTN_3' value='4096'/>
+ <enumerator name='SND_JACK_BTN_4' value='2048'/>
+ <enumerator name='SND_JACK_BTN_5' value='1024'/>
+ </enum-decl>
+ <pointer-type-def type-id='c4d4ddea' size-in-bits='64' id='0f5a7eb8'/>
+ <pointer-type-def type-id='fe091efd' size-in-bits='64' id='5a798ea9'/>
+ <function-decl name='snd_jack_set_key' mangled-name='snd_jack_set_key' filepath='sound/core/jack.c' line='335' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_jack_set_key'>
+ <parameter type-id='0f5a7eb8' name='jack' filepath='sound/core/jack.c' line='335' column='1'/>
+ <parameter type-id='7851d449' name='type' filepath='sound/core/jack.c' line='335' column='1'/>
+ <parameter type-id='95e97e5e' name='keytype' filepath='sound/core/jack.c' line='336' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
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+ <return type-id='48b5725f'/>
+ </function-type>
+ </abi-instr>
+ <abi-instr address-size='64' path='sound/core/misc.c' language='LANG_C89'>
+ <class-decl name='snd_pci_quirk' size-in-bits='96' is-struct='yes' visibility='default' filepath='include/sound/core.h' line='395' column='1' id='8288ae2e'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='subvendor' type-id='8efea9e5' visibility='default' filepath='include/sound/core.h' line='396' column='1'/>
+ </data-member>
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+ <var-decl name='subdevice' type-id='8efea9e5' visibility='default' filepath='include/sound/core.h' line='397' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='32'>
+ <var-decl name='subdevice_mask' type-id='8efea9e5' visibility='default' filepath='include/sound/core.h' line='398' column='1'/>
+ </data-member>
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+ <var-decl name='value' type-id='95e97e5e' visibility='default' filepath='include/sound/core.h' line='399' column='1'/>
+ </data-member>
+ </class-decl>
+ <qualified-type-def type-id='8288ae2e' const='yes' id='720a6415'/>
+ <pointer-type-def type-id='720a6415' size-in-bits='64' id='c55bcf2d'/>
+ <function-decl name='snd_pci_quirk_lookup' mangled-name='snd_pci_quirk_lookup' filepath='sound/core/misc.c' line='153' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pci_quirk_lookup'>
+ <parameter type-id='85196e3f' name='pci' filepath='sound/core/misc.c' line='153' column='1'/>
+ <parameter type-id='c55bcf2d' name='list' filepath='sound/core/misc.c' line='153' column='1'/>
+ <return type-id='c55bcf2d'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='sound/core/pcm.c' language='LANG_C89'>
+ <pointer-type-def type-id='4c9f335b' size-in-bits='64' id='0f9dfae3'/>
+ <function-decl name='snd_pcm_new' mangled-name='snd_pcm_new' filepath='sound/core/pcm.c' line='837' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_new'>
+ <parameter type-id='52704eb7' name='card' filepath='sound/core/pcm.c' line='837' column='1'/>
+ <parameter type-id='80f4b756' name='id' filepath='sound/core/pcm.c' line='837' column='1'/>
+ <parameter type-id='95e97e5e' name='device' filepath='sound/core/pcm.c' line='837' column='1'/>
+ <parameter type-id='95e97e5e' name='playback_count' filepath='sound/core/pcm.c' line='838' column='1'/>
+ <parameter type-id='95e97e5e' name='capture_count' filepath='sound/core/pcm.c' line='838' column='1'/>
+ <parameter type-id='0f9dfae3' name='rpcm' filepath='sound/core/pcm.c' line='838' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='sound/core/pcm_lib.c' language='LANG_C89'>
+ <array-type-def dimensions='1' type-id='3b0abfc6' size-in-bits='768' id='93f82aba'>
+ <subrange length='6' type-id='7ff19f0f' id='52fa524b'/>
+ </array-type-def>
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+ <subrange length='128' type-id='7ff19f0f' id='1eb1687a'/>
+ </array-type-def>
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+ <subrange length='15' type-id='7ff19f0f' id='8484ba73'/>
+ </array-type-def>
+ <class-decl name='snd_pcm_chmap_elem' size-in-bits='128' is-struct='yes' visibility='default' filepath='include/sound/pcm.h' line='1407' column='1' id='09098b3b'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='channels' type-id='002ac4a6' visibility='default' filepath='include/sound/pcm.h' line='1408' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='8'>
+ <var-decl name='map' type-id='92ab2118' visibility='default' filepath='include/sound/pcm.h' line='1409' column='1'/>
+ </data-member>
+ </class-decl>
+ <typedef-decl name='snd_pcm_hw_param_t' type-id='95e97e5e' filepath='include/uapi/sound/asound.h' line='345' column='1' id='6b55ba25'/>
+ <class-decl name='snd_pcm_hw_constraint_list' size-in-bits='128' is-struct='yes' visibility='default' filepath='include/sound/pcm.h' line='303' column='1' id='f5f6e55e'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='list' type-id='5b2fd8e8' visibility='default' filepath='include/sound/pcm.h' line='304' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='count' type-id='f0981eeb' visibility='default' filepath='include/sound/pcm.h' line='305' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='96'>
+ <var-decl name='mask' type-id='f0981eeb' visibility='default' filepath='include/sound/pcm.h' line='306' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='snd_pcm_chmap' size-in-bits='384' is-struct='yes' visibility='default' filepath='include/sound/pcm.h' line='1413' column='1' id='e8a73faf'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='pcm' type-id='4c9f335b' visibility='default' filepath='include/sound/pcm.h' line='1414' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='stream' type-id='95e97e5e' visibility='default' filepath='include/sound/pcm.h' line='1415' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='kctl' type-id='7a5054b7' visibility='default' filepath='include/sound/pcm.h' line='1416' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='chmap' type-id='ddec2084' visibility='default' filepath='include/sound/pcm.h' line='1417' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='max_channels' type-id='f0981eeb' visibility='default' filepath='include/sound/pcm.h' line='1418' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='288'>
+ <var-decl name='channel_mask' type-id='f0981eeb' visibility='default' filepath='include/sound/pcm.h' line='1419' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='320'>
+ <var-decl name='private_data' type-id='eaa32e2f' visibility='default' filepath='include/sound/pcm.h' line='1420' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='snd_pcm_volume_elem' size-in-bits='32' is-struct='yes' visibility='default' filepath='include/sound/pcm.h' line='1467' column='1' id='2ee25a20'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='volume' type-id='95e97e5e' visibility='default' filepath='include/sound/pcm.h' line='1468' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='snd_pcm_volume' size-in-bits='384' is-struct='yes' visibility='default' filepath='include/sound/pcm.h' line='1472' column='1' id='03397d2e'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='pcm' type-id='4c9f335b' visibility='default' filepath='include/sound/pcm.h' line='1473' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='stream' type-id='95e97e5e' visibility='default' filepath='include/sound/pcm.h' line='1474' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='kctl' type-id='7a5054b7' visibility='default' filepath='include/sound/pcm.h' line='1475' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='volume' type-id='9476d097' visibility='default' filepath='include/sound/pcm.h' line='1476' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='max_length' type-id='95e97e5e' visibility='default' filepath='include/sound/pcm.h' line='1477' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='320'>
+ <var-decl name='private_data' type-id='eaa32e2f' visibility='default' filepath='include/sound/pcm.h' line='1478' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='snd_pcm_usr_elem' size-in-bits='4096' is-struct='yes' visibility='default' filepath='include/sound/pcm.h' line='1491' column='1' id='f9ce5970'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='val' type-id='79d32e77' visibility='default' filepath='include/sound/pcm.h' line='1492' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='snd_pcm_usr' size-in-bits='384' is-struct='yes' visibility='default' filepath='include/sound/pcm.h' line='1496' column='1' id='cdad71be'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='pcm' type-id='4c9f335b' visibility='default' filepath='include/sound/pcm.h' line='1497' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='stream' type-id='95e97e5e' visibility='default' filepath='include/sound/pcm.h' line='1498' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='kctl' type-id='7a5054b7' visibility='default' filepath='include/sound/pcm.h' line='1499' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='usr' type-id='433983f9' visibility='default' filepath='include/sound/pcm.h' line='1500' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='max_length' type-id='95e97e5e' visibility='default' filepath='include/sound/pcm.h' line='1501' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='320'>
+ <var-decl name='private_data' type-id='eaa32e2f' visibility='default' filepath='include/sound/pcm.h' line='1502' column='1'/>
+ </data-member>
+ </class-decl>
+ <qualified-type-def type-id='09098b3b' const='yes' id='3b0abfc6'/>
+ <pointer-type-def type-id='3b0abfc6' size-in-bits='64' id='ddec2084'/>
+ <qualified-type-def type-id='f5f6e55e' const='yes' id='fa3724eb'/>
+ <pointer-type-def type-id='fa3724eb' size-in-bits='64' id='a5cedbd3'/>
+ <qualified-type-def type-id='f9ce5970' const='yes' id='f39d0be9'/>
+ <pointer-type-def type-id='f39d0be9' size-in-bits='64' id='433983f9'/>
+ <qualified-type-def type-id='2ee25a20' const='yes' id='d25c6747'/>
+ <pointer-type-def type-id='d25c6747' size-in-bits='64' id='9476d097'/>
+ <pointer-type-def type-id='e8a73faf' size-in-bits='64' id='70ff05c7'/>
+ <pointer-type-def type-id='70ff05c7' size-in-bits='64' id='ce765417'/>
+ <pointer-type-def type-id='cdad71be' size-in-bits='64' id='c04d3da4'/>
+ <pointer-type-def type-id='c04d3da4' size-in-bits='64' id='4797e68a'/>
+ <pointer-type-def type-id='03397d2e' size-in-bits='64' id='bc08cff4'/>
+ <pointer-type-def type-id='bc08cff4' size-in-bits='64' id='dfdf3a7a'/>
+ <var-decl name='snd_pcm_std_chmaps' type-id='93f82aba' mangled-name='snd_pcm_std_chmaps' visibility='default' filepath='sound/core/pcm_lib.c' line='2269' column='1' elf-symbol-id='snd_pcm_std_chmaps'/>
+ <var-decl name='snd_pcm_alt_chmaps' type-id='93f82aba' mangled-name='snd_pcm_alt_chmaps' visibility='default' filepath='sound/core/pcm_lib.c' line='2291' column='1' elf-symbol-id='snd_pcm_alt_chmaps'/>
+ <function-decl name='snd_pcm_hw_constraint_list' mangled-name='snd_pcm_hw_constraint_list' filepath='sound/core/pcm_lib.c' line='1278' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_hw_constraint_list'>
+ <parameter type-id='17a05af6' name='runtime' filepath='sound/core/pcm_lib.c' line='1278' column='1'/>
+ <parameter type-id='f0981eeb' name='cond' filepath='sound/core/pcm_lib.c' line='1279' column='1'/>
+ <parameter type-id='6b55ba25' name='var' filepath='sound/core/pcm_lib.c' line='1280' column='1'/>
+ <parameter type-id='a5cedbd3' name='l' filepath='sound/core/pcm_lib.c' line='1281' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_pcm_hw_constraint_msbits' mangled-name='snd_pcm_hw_constraint_msbits' filepath='sound/core/pcm_lib.c' line='1422' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_hw_constraint_msbits'>
+ <parameter type-id='17a05af6' name='runtime' filepath='sound/core/pcm_lib.c' line='1422' column='1'/>
+ <parameter type-id='f0981eeb' name='cond' filepath='sound/core/pcm_lib.c' line='1423' column='1'/>
+ <parameter type-id='f0981eeb' name='width' filepath='sound/core/pcm_lib.c' line='1424' column='1'/>
+ <parameter type-id='f0981eeb' name='msbits' filepath='sound/core/pcm_lib.c' line='1425' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_pcm_hw_constraint_step' mangled-name='snd_pcm_hw_constraint_step' filepath='sound/core/pcm_lib.c' line='1451' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_hw_constraint_step'>
+ <parameter type-id='17a05af6' name='runtime' filepath='sound/core/pcm_lib.c' line='1451' column='1'/>
+ <parameter type-id='f0981eeb' name='cond' filepath='sound/core/pcm_lib.c' line='1452' column='1'/>
+ <parameter type-id='6b55ba25' name='var' filepath='sound/core/pcm_lib.c' line='1453' column='1'/>
+ <parameter type-id='7359adad' name='step' filepath='sound/core/pcm_lib.c' line='1454' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_pcm_lib_ioctl' mangled-name='snd_pcm_lib_ioctl' filepath='sound/core/pcm_lib.c' line='1773' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_lib_ioctl'>
+ <parameter type-id='06b2cd14' name='substream' filepath='sound/core/pcm_lib.c' line='1773' column='1'/>
+ <parameter type-id='f0981eeb' name='cmd' filepath='sound/core/pcm_lib.c' line='1774' column='1'/>
+ <parameter type-id='eaa32e2f' name='arg' filepath='sound/core/pcm_lib.c' line='1774' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_pcm_add_chmap_ctls' mangled-name='snd_pcm_add_chmap_ctls' filepath='sound/core/pcm_lib.c' line='2447' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_add_chmap_ctls'>
+ <parameter type-id='4c9f335b' name='pcm' filepath='sound/core/pcm_lib.c' line='2447' column='1'/>
+ <parameter type-id='95e97e5e' name='stream' filepath='sound/core/pcm_lib.c' line='2447' column='1'/>
+ <parameter type-id='ddec2084' name='chmap' filepath='sound/core/pcm_lib.c' line='2448' column='1'/>
+ <parameter type-id='95e97e5e' name='max_channels' filepath='sound/core/pcm_lib.c' line='2449' column='1'/>
+ <parameter type-id='7359adad' name='private_value' filepath='sound/core/pcm_lib.c' line='2450' column='1'/>
+ <parameter type-id='ce765417' name='info_ret' filepath='sound/core/pcm_lib.c' line='2451' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_pcm_add_volume_ctls' mangled-name='snd_pcm_add_volume_ctls' filepath='sound/core/pcm_lib.c' line='2508' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_add_volume_ctls'>
+ <parameter type-id='4c9f335b' name='pcm' filepath='sound/core/pcm_lib.c' line='2508' column='1'/>
+ <parameter type-id='95e97e5e' name='stream' filepath='sound/core/pcm_lib.c' line='2508' column='1'/>
+ <parameter type-id='9476d097' name='volume' filepath='sound/core/pcm_lib.c' line='2509' column='1'/>
+ <parameter type-id='95e97e5e' name='max_length' filepath='sound/core/pcm_lib.c' line='2510' column='1'/>
+ <parameter type-id='7359adad' name='private_value' filepath='sound/core/pcm_lib.c' line='2511' column='1'/>
+ <parameter type-id='dfdf3a7a' name='info_ret' filepath='sound/core/pcm_lib.c' line='2512' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_pcm_add_usr_ctls' mangled-name='snd_pcm_add_usr_ctls' filepath='sound/core/pcm_lib.c' line='2597' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_add_usr_ctls'>
+ <parameter type-id='4c9f335b' name='pcm' filepath='sound/core/pcm_lib.c' line='2597' column='1'/>
+ <parameter type-id='95e97e5e' name='stream' filepath='sound/core/pcm_lib.c' line='2597' column='1'/>
+ <parameter type-id='433983f9' name='usr' filepath='sound/core/pcm_lib.c' line='2598' column='1'/>
+ <parameter type-id='95e97e5e' name='max_length' filepath='sound/core/pcm_lib.c' line='2599' column='1'/>
+ <parameter type-id='95e97e5e' name='max_kctrl_str_len' filepath='sound/core/pcm_lib.c' line='2599' column='1'/>
+ <parameter type-id='7359adad' name='private_value' filepath='sound/core/pcm_lib.c' line='2600' column='1'/>
+ <parameter type-id='4797e68a' name='info_ret' filepath='sound/core/pcm_lib.c' line='2601' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='sound/core/pcm_memory.c' language='LANG_C89'>
+ <function-decl name='snd_dma_free_pages' mangled-name='snd_dma_free_pages' filepath='include/sound/memalloc.h' line='150' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_dma_free_pages'>
+ <parameter type-id='a02b8cd2'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='snd_dma_alloc_pages' mangled-name='snd_dma_alloc_pages' filepath='include/sound/memalloc.h' line='146' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_dma_alloc_pages'>
+ <parameter type-id='95e97e5e'/>
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+ <function-decl name='snd_pcm_lib_malloc_pages' mangled-name='snd_pcm_lib_malloc_pages' filepath='sound/core/pcm_memory.c' line='328' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_lib_malloc_pages'>
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+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_pcm_lib_free_pages' mangled-name='snd_pcm_lib_free_pages' filepath='sound/core/pcm_memory.c' line='379' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_lib_free_pages'>
+ <parameter type-id='06b2cd14' name='substream' filepath='sound/core/pcm_memory.c' line='379' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_pcm_lib_get_vmalloc_page' mangled-name='snd_pcm_lib_get_vmalloc_page' filepath='sound/core/pcm_memory.c' line='449' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_lib_get_vmalloc_page'>
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+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='sound/core/pcm_misc.c' language='LANG_C89'>
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+ <parameter type-id='67fa9bd5' name='format' filepath='sound/core/pcm_misc.c' line='343' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
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+ <parameter type-id='732e15ce'/>
+ <parameter type-id='1d0ab711'/>
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+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_pcm_suspend_all' mangled-name='snd_pcm_suspend_all' filepath='sound/core/pcm_native.c' line='1511' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_suspend_all'>
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+ <return type-id='95e97e5e'/>
+ </function-decl>
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+ <function-decl name='snd_pcm_format_physical_width' mangled-name='snd_pcm_format_physical_width' filepath='include/sound/pcm.h' line='1095' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_format_physical_width'>
+ <parameter type-id='95e97e5e'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_pcm_hw_constraint_minmax' mangled-name='snd_pcm_hw_constraint_minmax' filepath='include/sound/pcm.h' line='1020' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_hw_constraint_minmax'>
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+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_pcm_hw_constraint_integer' mangled-name='snd_pcm_hw_constraint_integer' filepath='include/sound/pcm.h' line='1022' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_hw_constraint_integer'>
+ <parameter type-id='17a05af6'/>
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+ </function-decl>
+ </abi-instr>
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+ </data-member>
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+ <parameter type-id='2730d015'/>
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+ <parameter type-id='b9608bfc'/>
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+ <return type-id='95e97e5e'/>
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+ <function-decl name='snd_ctl_make_virtual_master' mangled-name='snd_ctl_make_virtual_master' filepath='sound/core/vmaster.c' line='395' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_ctl_make_virtual_master'>
+ <parameter type-id='26a90f95' name='name' filepath='sound/core/vmaster.c' line='395' column='1'/>
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+ <return type-id='7a5054b7'/>
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+ </abi-instr>
+ <abi-instr address-size='64' path='sound/soc/soc-compress.c' language='LANG_C89'>
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+ <parameter type-id='95316552' name='rtd' filepath='sound/soc/soc-compress.c' line='899' column='1'/>
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+ <pointer-type-def type-id='f780d556' size-in-bits='64' id='810606ec'/>
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+ <pointer-type-def type-id='b1e3bc3e' size-in-bits='64' id='32ca7384'/>
+ <pointer-type-def type-id='a2f068ed' size-in-bits='64' id='0081e2ad'/>
+ <pointer-type-def type-id='a79c02b8' size-in-bits='64' id='8665c98e'/>
+ <pointer-type-def type-id='913f3538' size-in-bits='64' id='2a24760e'/>
+ <pointer-type-def type-id='c2ddf2d7' size-in-bits='64' id='76e6e22f'/>
+ <pointer-type-def type-id='6d009fe7' size-in-bits='64' id='cee845ff'/>
+ <pointer-type-def type-id='4c8ce8c5' size-in-bits='64' id='2610fb79'/>
+ <pointer-type-def type-id='0971a711' size-in-bits='64' id='7bb6ff35'/>
+ <pointer-type-def type-id='da3c754a' size-in-bits='64' id='4b0aea04'/>
+ <pointer-type-def type-id='9eea6bb5' size-in-bits='64' id='c7f8de51'/>
+ <pointer-type-def type-id='883b3327' size-in-bits='64' id='e3fceddb'/>
+ <pointer-type-def type-id='b43302df' size-in-bits='64' id='f88ed793'/>
+ <pointer-type-def type-id='139c5a2c' size-in-bits='64' id='f596d48e'/>
+ <pointer-type-def type-id='4e5b23cf' size-in-bits='64' id='547d5a7b'/>
+ <var-decl name='snd_soc_pm_ops' type-id='86af1d10' mangled-name='snd_soc_pm_ops' visibility='default' filepath='sound/soc/soc-core.c' line='2299' column='1' elf-symbol-id='snd_soc_pm_ops'/>
+ <function-decl name='snd_soc_rtdcom_lookup' mangled-name='snd_soc_rtdcom_lookup' filepath='sound/soc/soc-core.c' line='316' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_rtdcom_lookup'>
+ <parameter type-id='95316552' name='rtd' filepath='sound/soc/soc-core.c' line='316' column='1'/>
+ <parameter type-id='80f4b756' name='driver_name' filepath='sound/soc/soc-core.c' line='317' column='1'/>
+ <return type-id='807b7702'/>
+ </function-decl>
+ <function-decl name='snd_soc_get_pcm_runtime' mangled-name='snd_soc_get_pcm_runtime' filepath='sound/soc/soc-core.c' line='409' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_get_pcm_runtime'>
+ <parameter type-id='3059cd0b' name='card' filepath='sound/soc/soc-core.c' line='409' column='1'/>
+ <parameter type-id='80f4b756' name='dai_link' filepath='sound/soc/soc-core.c' line='410' column='1'/>
+ <return type-id='95316552'/>
+ </function-decl>
+ <function-decl name='snd_soc_dapm_sync' mangled-name='snd_soc_dapm_sync' filepath='include/sound/soc-dapm.h' line='462' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_sync'>
+ <parameter type-id='70d004a5'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='soc_find_component' mangled-name='soc_find_component' filepath='sound/soc/soc-core.c' line='731' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='soc_find_component'>
+ <parameter type-id='0afa6ea3' name='of_node' filepath='sound/soc/soc-core.c' line='732' column='1'/>
+ <parameter type-id='80f4b756' name='name' filepath='sound/soc/soc-core.c' line='732' column='1'/>
+ <return type-id='807b7702'/>
+ </function-decl>
+ <function-decl name='soc_find_component_locked' mangled-name='soc_find_component_locked' filepath='sound/soc/soc-core.c' line='761' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='soc_find_component_locked'>
+ <parameter type-id='0afa6ea3' name='of_node' filepath='sound/soc/soc-core.c' line='762' column='1'/>
+ <parameter type-id='80f4b756' name='name' filepath='sound/soc/soc-core.c' line='762' column='1'/>
+ <return type-id='807b7702'/>
+ </function-decl>
+ <function-decl name='snd_soc_dai_set_fmt' mangled-name='snd_soc_dai_set_fmt' filepath='sound/soc/soc-core.c' line='2585' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dai_set_fmt'>
+ <parameter type-id='1c936db9' name='dai' filepath='sound/soc/soc-core.c' line='2585' column='1'/>
+ <parameter type-id='f0981eeb' name='fmt' filepath='sound/soc/soc-core.c' line='2585' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_card_get_kcontrol' mangled-name='snd_soc_card_get_kcontrol' filepath='sound/soc/soc-core.c' line='2382' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_card_get_kcontrol'>
+ <parameter type-id='3059cd0b' name='soc_card' filepath='sound/soc/soc-core.c' line='2382' column='1'/>
+ <parameter type-id='80f4b756' name='name' filepath='sound/soc/soc-core.c' line='2383' column='1'/>
+ <return type-id='7a5054b7'/>
+ </function-decl>
+ <function-decl name='snd_soc_add_component_controls' mangled-name='snd_soc_add_component_controls' filepath='sound/soc/soc-core.c' line='2407' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_add_component_controls'>
+ <parameter type-id='807b7702' name='component' filepath='sound/soc/soc-core.c' line='2407' column='1'/>
+ <parameter type-id='31e035f7' name='controls' filepath='sound/soc/soc-core.c' line='2408' column='1'/>
+ <parameter type-id='f0981eeb' name='num_controls' filepath='sound/soc/soc-core.c' line='2408' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_dai_set_sysclk' mangled-name='snd_soc_dai_set_sysclk' filepath='sound/soc/soc-core.c' line='2466' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dai_set_sysclk'>
+ <parameter type-id='1c936db9' name='dai' filepath='sound/soc/soc-core.c' line='2466' column='1'/>
+ <parameter type-id='95e97e5e' name='clk_id' filepath='sound/soc/soc-core.c' line='2466' column='1'/>
+ <parameter type-id='f0981eeb' name='freq' filepath='sound/soc/soc-core.c' line='2467' column='1'/>
+ <parameter type-id='95e97e5e' name='dir' filepath='sound/soc/soc-core.c' line='2467' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_component_set_sysclk' mangled-name='snd_soc_component_set_sysclk' filepath='sound/soc/soc-core.c' line='2487' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_component_set_sysclk'>
+ <parameter type-id='807b7702' name='component' filepath='sound/soc/soc-core.c' line='2487' column='1'/>
+ <parameter type-id='95e97e5e' name='clk_id' filepath='sound/soc/soc-core.c' line='2487' column='1'/>
+ <parameter type-id='95e97e5e' name='source' filepath='sound/soc/soc-core.c' line='2488' column='1'/>
+ <parameter type-id='f0981eeb' name='freq' filepath='sound/soc/soc-core.c' line='2488' column='1'/>
+ <parameter type-id='95e97e5e' name='dir' filepath='sound/soc/soc-core.c' line='2488' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_dai_set_pll' mangled-name='snd_soc_dai_set_pll' filepath='sound/soc/soc-core.c' line='2528' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dai_set_pll'>
+ <parameter type-id='1c936db9' name='dai' filepath='sound/soc/soc-core.c' line='2528' column='1'/>
+ <parameter type-id='95e97e5e' name='pll_id' filepath='sound/soc/soc-core.c' line='2528' column='1'/>
+ <parameter type-id='95e97e5e' name='source' filepath='sound/soc/soc-core.c' line='2528' column='1'/>
+ <parameter type-id='f0981eeb' name='freq_in' filepath='sound/soc/soc-core.c' line='2529' column='1'/>
+ <parameter type-id='f0981eeb' name='freq_out' filepath='sound/soc/soc-core.c' line='2529' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_dai_set_tdm_slot' mangled-name='snd_soc_dai_set_tdm_slot' filepath='sound/soc/soc-core.c' line='2642' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dai_set_tdm_slot'>
+ <parameter type-id='1c936db9' name='dai' filepath='sound/soc/soc-core.c' line='2642' column='1'/>
+ <parameter type-id='f0981eeb' name='tx_mask' filepath='sound/soc/soc-core.c' line='2643' column='1'/>
+ <parameter type-id='f0981eeb' name='rx_mask' filepath='sound/soc/soc-core.c' line='2643' column='1'/>
+ <parameter type-id='95e97e5e' name='slots' filepath='sound/soc/soc-core.c' line='2643' column='1'/>
+ <parameter type-id='95e97e5e' name='slot_width' filepath='sound/soc/soc-core.c' line='2643' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_dai_set_channel_map' mangled-name='snd_soc_dai_set_channel_map' filepath='sound/soc/soc-core.c' line='2674' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dai_set_channel_map'>
+ <parameter type-id='1c936db9' name='dai' filepath='sound/soc/soc-core.c' line='2674' column='1'/>
+ <parameter type-id='f0981eeb' name='tx_num' filepath='sound/soc/soc-core.c' line='2675' column='1'/>
+ <parameter type-id='807869d3' name='tx_slot' filepath='sound/soc/soc-core.c' line='2675' column='1'/>
+ <parameter type-id='f0981eeb' name='rx_num' filepath='sound/soc/soc-core.c' line='2676' column='1'/>
+ <parameter type-id='807869d3' name='rx_slot' filepath='sound/soc/soc-core.c' line='2676' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_dai_get_channel_map' mangled-name='snd_soc_dai_get_channel_map' filepath='sound/soc/soc-core.c' line='2696' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dai_get_channel_map'>
+ <parameter type-id='1c936db9' name='dai' filepath='sound/soc/soc-core.c' line='2696' column='1'/>
+ <parameter type-id='807869d3' name='tx_num' filepath='sound/soc/soc-core.c' line='2697' column='1'/>
+ <parameter type-id='807869d3' name='tx_slot' filepath='sound/soc/soc-core.c' line='2697' column='1'/>
+ <parameter type-id='807869d3' name='rx_num' filepath='sound/soc/soc-core.c' line='2698' column='1'/>
+ <parameter type-id='807869d3' name='rx_slot' filepath='sound/soc/soc-core.c' line='2698' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_dapm_new_controls' mangled-name='snd_soc_dapm_new_controls' filepath='include/sound/soc-dapm.h' line='401' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_new_controls'>
+ <parameter type-id='70d004a5'/>
+ <parameter type-id='dae78f89'/>
+ <parameter type-id='95e97e5e'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_dapm_add_routes' mangled-name='snd_soc_dapm_add_routes' filepath='include/sound/soc-dapm.h' line='421' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_add_routes'>
+ <parameter type-id='70d004a5'/>
+ <parameter type-id='8f3d28b8'/>
+ <parameter type-id='95e97e5e'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_dapm_new_widgets' mangled-name='snd_soc_dapm_new_widgets' filepath='include/sound/soc-dapm.h' line='419' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_new_widgets'>
+ <parameter type-id='3059cd0b'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_unregister_card' mangled-name='snd_soc_unregister_card' filepath='sound/soc/soc-core.c' line='2819' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_unregister_card'>
+ <parameter type-id='3059cd0b' name='card' filepath='sound/soc/soc-core.c' line='2819' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_component_init_regmap' mangled-name='snd_soc_component_init_regmap' filepath='sound/soc/soc-core.c' line='3117' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_component_init_regmap'>
+ <parameter type-id='807b7702' name='component' filepath='sound/soc/soc-core.c' line='3117' column='1'/>
+ <parameter type-id='29af9a71' name='regmap' filepath='sound/soc/soc-core.c' line='3118' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='snd_soc_component_exit_regmap' mangled-name='snd_soc_component_exit_regmap' filepath='sound/soc/soc-core.c' line='3135' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_component_exit_regmap'>
+ <parameter type-id='807b7702' name='component' filepath='sound/soc/soc-core.c' line='3135' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='snd_soc_register_component' mangled-name='snd_soc_register_component' filepath='sound/soc/soc-core.c' line='3249' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_register_component'>
+ <parameter type-id='fa0b179b' name='dev' filepath='sound/soc/soc-core.c' line='3249' column='1'/>
+ <parameter type-id='f030c2b8' name='component_driver' filepath='sound/soc/soc-core.c' line='3250' column='1'/>
+ <parameter type-id='763d26a2' name='dai_drv' filepath='sound/soc/soc-core.c' line='3251' column='1'/>
+ <parameter type-id='95e97e5e' name='num_dai' filepath='sound/soc/soc-core.c' line='3252' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_unregister_component' mangled-name='snd_soc_unregister_component' filepath='sound/soc/soc-core.c' line='3295' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_unregister_component'>
+ <parameter type-id='fa0b179b' name='dev' filepath='sound/soc/soc-core.c' line='3295' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='snd_soc_card_change_online_state' mangled-name='snd_soc_card_change_online_state' filepath='sound/soc/soc-core.c' line='3332' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_card_change_online_state'>
+ <parameter type-id='3059cd0b' name='soc_card' filepath='sound/soc/soc-core.c' line='3332' column='1'/>
+ <parameter type-id='95e97e5e' name='online' filepath='sound/soc/soc-core.c' line='3332' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='snd_soc_of_parse_card_name' mangled-name='snd_soc_of_parse_card_name' filepath='sound/soc/soc-core.c' line='3339' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_of_parse_card_name'>
+ <parameter type-id='3059cd0b' name='card' filepath='sound/soc/soc-core.c' line='3339' column='1'/>
+ <parameter type-id='80f4b756' name='propname' filepath='sound/soc/soc-core.c' line='3340' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_of_parse_audio_routing' mangled-name='snd_soc_of_parse_audio_routing' filepath='sound/soc/soc-core.c' line='3531' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_of_parse_audio_routing'>
+ <parameter type-id='3059cd0b' name='card' filepath='sound/soc/soc-core.c' line='3531' column='1'/>
+ <parameter type-id='80f4b756' name='propname' filepath='sound/soc/soc-core.c' line='3532' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_info_multi_ext' mangled-name='snd_soc_info_multi_ext' filepath='sound/soc/soc-core.c' line='3752' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_info_multi_ext'>
+ <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-core.c' line='3752' column='1'/>
+ <parameter type-id='0e291009' name='uinfo' filepath='sound/soc/soc-core.c' line='3753' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_of_get_dai_link_codecs' mangled-name='snd_soc_of_get_dai_link_codecs' filepath='sound/soc/soc-core.c' line='3890' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_of_get_dai_link_codecs'>
+ <parameter type-id='fa0b179b' name='dev' filepath='sound/soc/soc-core.c' line='3890' column='1'/>
+ <parameter type-id='9a537bbe' name='of_node' filepath='sound/soc/soc-core.c' line='3891' column='1'/>
+ <parameter type-id='af5a73b0' name='dai_link' filepath='sound/soc/soc-core.c' line='3892' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-type size-in-bits='64' id='d26d2ca4'>
+ <parameter type-id='b7c1d7d5'/>
+ <parameter type-id='95e97e5e'/>
+ <parameter type-id='1c936db9'/>
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+ </function-type>
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+ <parameter type-id='99baf115'/>
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+ </function-type>
+ <function-type size-in-bits='64' id='6f527014'>
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+ <return type-id='810606ec'/>
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+ <function-decl name='snd_soc_dapm_mux_update_power' mangled-name='snd_soc_dapm_mux_update_power' filepath='sound/soc/soc-dapm.c' line='2270' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_mux_update_power'>
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+ <parameter type-id='33146de3' name='update' filepath='sound/soc/soc-dapm.c' line='2272' column='1'/>
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+ </function-decl>
+ <function-decl name='snd_soc_dapm_mixer_update_power' mangled-name='snd_soc_dapm_mixer_update_power' filepath='sound/soc/soc-dapm.c' line='2335' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_mixer_update_power'>
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+ <return type-id='95e97e5e'/>
+ </function-decl>
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+ <parameter type-id='144a5d4c' name='ucontrol' filepath='sound/soc/soc-dapm.c' line='3162' column='1'/>
+ <return type-id='95e97e5e'/>
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+ <function-decl name='snd_soc_dapm_put_volsw' mangled-name='snd_soc_dapm_put_volsw' filepath='sound/soc/soc-dapm.c' line='3224' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_put_volsw'>
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+ <parameter type-id='80f4b756' name='pin' filepath='sound/soc/soc-dapm.c' line='4535' column='1'/>
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+ <parameter type-id='fa0b179b' name='dev' filepath='sound/soc/soc-devres.c' line='63' column='1'/>
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+ </abi-instr>
+ <abi-instr address-size='64' path='sound/soc/soc-jack.c' language='LANG_C89'>
+ <class-decl name='snd_soc_jack_pin' size-in-bits='256' is-struct='yes' visibility='default' filepath='include/sound/soc.h' line='663' column='1' id='ad7e730a'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='list' type-id='72f469ec' visibility='default' filepath='include/sound/soc.h' line='664' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='pin' type-id='80f4b756' visibility='default' filepath='include/sound/soc.h' line='665' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='mask' type-id='95e97e5e' visibility='default' filepath='include/sound/soc.h' line='666' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='224'>
+ <var-decl name='invert' type-id='b50a4934' visibility='default' filepath='include/sound/soc.h' line='667' column='1'/>
+ </data-member>
+ </class-decl>
+ <pointer-type-def type-id='ad7e730a' size-in-bits='64' id='fcd78288'/>
+ <function-decl name='snd_soc_card_jack_new' mangled-name='snd_soc_card_jack_new' filepath='sound/soc/soc-jack.c' line='59' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_card_jack_new'>
+ <parameter type-id='3059cd0b' name='card' filepath='sound/soc/soc-jack.c' line='59' column='1'/>
+ <parameter type-id='80f4b756' name='id' filepath='sound/soc/soc-jack.c' line='59' column='1'/>
+ <parameter type-id='95e97e5e' name='type' filepath='sound/soc/soc-jack.c' line='59' column='1'/>
+ <parameter type-id='12a060a4' name='jack' filepath='sound/soc/soc-jack.c' line='60' column='1'/>
+ <parameter type-id='fcd78288' name='pins' filepath='sound/soc/soc-jack.c' line='60' column='1'/>
+ <parameter type-id='f0981eeb' name='num_pins' filepath='sound/soc/soc-jack.c' line='61' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_jack_report' mangled-name='snd_soc_jack_report' filepath='sound/soc/soc-jack.c' line='96' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_jack_report'>
+ <parameter type-id='12a060a4' name='jack' filepath='sound/soc/soc-jack.c' line='96' column='1'/>
+ <parameter type-id='95e97e5e' name='status' filepath='sound/soc/soc-jack.c' line='96' column='1'/>
+ <parameter type-id='95e97e5e' name='mask' filepath='sound/soc/soc-jack.c' line='96' column='1'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='sound/soc/soc-ops.c' language='LANG_C89'>
+ <function-decl name='snd_soc_info_enum_double' mangled-name='snd_soc_info_enum_double' filepath='sound/soc/soc-ops.c' line='40' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_info_enum_double'>
+ <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-ops.c' line='40' column='1'/>
+ <parameter type-id='0e291009' name='uinfo' filepath='sound/soc/soc-ops.c' line='41' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_get_enum_double' mangled-name='snd_soc_get_enum_double' filepath='sound/soc/soc-ops.c' line='59' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_get_enum_double'>
+ <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-ops.c' line='59' column='1'/>
+ <parameter type-id='144a5d4c' name='ucontrol' filepath='sound/soc/soc-ops.c' line='60' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_put_enum_double' mangled-name='snd_soc_put_enum_double' filepath='sound/soc/soc-ops.c' line='93' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_put_enum_double'>
+ <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-ops.c' line='93' column='1'/>
+ <parameter type-id='144a5d4c' name='ucontrol' filepath='sound/soc/soc-ops.c' line='94' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_info_volsw' mangled-name='snd_soc_info_volsw' filepath='sound/soc/soc-ops.c' line='181' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_info_volsw'>
+ <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-ops.c' line='181' column='1'/>
+ <parameter type-id='0e291009' name='uinfo' filepath='sound/soc/soc-ops.c' line='182' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_info_volsw_sx' mangled-name='snd_soc_info_volsw_sx' filepath='sound/soc/soc-ops.c' line='216' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_info_volsw_sx'>
+ <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-ops.c' line='216' column='1'/>
+ <parameter type-id='0e291009' name='uinfo' filepath='sound/soc/soc-ops.c' line='217' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_get_volsw' mangled-name='snd_soc_get_volsw' filepath='sound/soc/soc-ops.c' line='242' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_get_volsw'>
+ <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-ops.c' line='242' column='1'/>
+ <parameter type-id='144a5d4c' name='ucontrol' filepath='sound/soc/soc-ops.c' line='243' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_put_volsw' mangled-name='snd_soc_put_volsw' filepath='sound/soc/soc-ops.c' line='302' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_put_volsw'>
+ <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-ops.c' line='302' column='1'/>
+ <parameter type-id='144a5d4c' name='ucontrol' filepath='sound/soc/soc-ops.c' line='303' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_get_volsw_sx' mangled-name='snd_soc_get_volsw_sx' filepath='sound/soc/soc-ops.c' line='364' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_get_volsw_sx'>
+ <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-ops.c' line='364' column='1'/>
+ <parameter type-id='144a5d4c' name='ucontrol' filepath='sound/soc/soc-ops.c' line='365' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_put_volsw_sx' mangled-name='snd_soc_put_volsw_sx' filepath='sound/soc/soc-ops.c' line='408' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_put_volsw_sx'>
+ <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-ops.c' line='408' column='1'/>
+ <parameter type-id='144a5d4c' name='ucontrol' filepath='sound/soc/soc-ops.c' line='409' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_info_volsw_range' mangled-name='snd_soc_info_volsw_range' filepath='sound/soc/soc-ops.c' line='455' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_info_volsw_range'>
+ <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-ops.c' line='455' column='1'/>
+ <parameter type-id='0e291009' name='uinfo' filepath='sound/soc/soc-ops.c' line='456' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_put_volsw_range' mangled-name='snd_soc_put_volsw_range' filepath='sound/soc/soc-ops.c' line='485' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_put_volsw_range'>
+ <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-ops.c' line='485' column='1'/>
+ <parameter type-id='144a5d4c' name='ucontrol' filepath='sound/soc/soc-ops.c' line='486' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_get_volsw_range' mangled-name='snd_soc_get_volsw_range' filepath='sound/soc/soc-ops.c' line='537' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_get_volsw_range'>
+ <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-ops.c' line='537' column='1'/>
+ <parameter type-id='144a5d4c' name='ucontrol' filepath='sound/soc/soc-ops.c' line='538' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_bytes_info_ext' mangled-name='snd_soc_bytes_info_ext' filepath='sound/soc/soc-ops.c' line='755' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_bytes_info_ext'>
+ <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-ops.c' line='755' column='1'/>
+ <parameter type-id='0e291009' name='ucontrol' filepath='sound/soc/soc-ops.c' line='756' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_bytes_tlv_callback' mangled-name='snd_soc_bytes_tlv_callback' filepath='sound/soc/soc-ops.c' line='767' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_bytes_tlv_callback'>
+ <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-ops.c' line='767' column='1'/>
+ <parameter type-id='95e97e5e' name='op_flag' filepath='sound/soc/soc-ops.c' line='767' column='1'/>
+ <parameter type-id='f0981eeb' name='size' filepath='sound/soc/soc-ops.c' line='768' column='1'/>
+ <parameter type-id='807869d3' name='tlv' filepath='sound/soc/soc-ops.c' line='768' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='sound/soc/soc-utils.c' language='LANG_C89'>
+ <qualified-type-def type-id='eacd353c' const='yes' id='4b09229d'/>
+ <pointer-type-def type-id='4b09229d' size-in-bits='64' id='d661a615'/>
+ <function-decl name='snd_soc_params_to_frame_size' mangled-name='snd_soc_params_to_frame_size' filepath='sound/soc/soc-utils.c' line='23' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_params_to_frame_size'>
+ <parameter type-id='363a995e' name='params' filepath='sound/soc/soc-utils.c' line='23' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_component_disable_pin' mangled-name='snd_soc_component_disable_pin' filepath='sound/soc/soc-utils.c' line='99' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_component_disable_pin'>
+ <parameter type-id='807b7702' name='component' filepath='sound/soc/soc-utils.c' line='99' column='1'/>
+ <parameter type-id='80f4b756' name='pin' filepath='sound/soc/soc-utils.c' line='100' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_component_force_enable_pin' mangled-name='snd_soc_component_force_enable_pin' filepath='sound/soc/soc-utils.c' line='209' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_component_force_enable_pin'>
+ <parameter type-id='807b7702' name='component' filepath='sound/soc/soc-utils.c' line='209' column='1'/>
+ <parameter type-id='80f4b756' name='pin' filepath='sound/soc/soc-utils.c' line='210' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='devm_snd_soc_register_component' mangled-name='devm_snd_soc_register_component' filepath='include/sound/soc.h' line='464' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_snd_soc_register_component'>
+ <parameter type-id='fa0b179b'/>
+ <parameter type-id='f030c2b8'/>
+ <parameter type-id='763d26a2'/>
+ <parameter type-id='95e97e5e'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ <function-decl name='snd_soc_set_runtime_hwparams' mangled-name='snd_soc_set_runtime_hwparams' filepath='include/sound/soc.h' line='512' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_set_runtime_hwparams'>
+ <parameter type-id='06b2cd14'/>
+ <parameter type-id='d661a615'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ <abi-instr address-size='64' path='sound/usb/card.c' language='LANG_C89'>
+ <array-type-def dimensions='1' type-id='95e97e5e' size-in-bits='1536' id='70cd8d02'>
+ <subrange length='48' type-id='7ff19f0f' id='8f6d2a81'/>
+ </array-type-def>
+ <array-type-def dimensions='1' type-id='dc7e95e2' size-in-bits='23808' id='d6500b03'>
+ <subrange length='12' type-id='7ff19f0f' id='84827bdc'/>
+ </array-type-def>
+ <array-type-def dimensions='1' type-id='6ad85953' size-in-bits='18816' id='d6640cfa'>
+ <subrange length='12' type-id='7ff19f0f' id='84827bdc'/>
+ </array-type-def>
+ <array-type-def dimensions='1' type-id='bfbf7968' size-in-bits='3712' id='ab779f6c'>
+ <subrange length='2' type-id='7ff19f0f' id='52efc4ef'/>
+ </array-type-def>
+ <array-type-def dimensions='1' type-id='8f92235e' size-in-bits='1536' id='fe4ded8f'>
+ <subrange length='48' type-id='7ff19f0f' id='8f6d2a81'/>
+ </array-type-def>
+ <class-decl name='snd_usb_substream' size-in-bits='1856' is-struct='yes' visibility='default' filepath='sound/usb/card.h' line='118' column='1' id='bfbf7968'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='stream' type-id='d24a1720' visibility='default' filepath='sound/usb/card.h' line='119' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='dev' type-id='25e60cb2' visibility='default' filepath='sound/usb/card.h' line='120' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='pcm_substream' type-id='06b2cd14' visibility='default' filepath='sound/usb/card.h' line='121' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='direction' type-id='95e97e5e' visibility='default' filepath='sound/usb/card.h' line='122' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='224'>
+ <var-decl name='interface' type-id='95e97e5e' visibility='default' filepath='sound/usb/card.h' line='123' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='endpoint' type-id='95e97e5e' visibility='default' filepath='sound/usb/card.h' line='124' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='320'>
+ <var-decl name='cur_audiofmt' type-id='1102bd14' visibility='default' filepath='sound/usb/card.h' line='125' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='384'>
+ <var-decl name='str_pd' type-id='ec0e067e' visibility='default' filepath='sound/usb/card.h' line='126' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='448'>
+ <var-decl name='pcm_format' type-id='67fa9bd5' visibility='default' filepath='sound/usb/card.h' line='127' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='480'>
+ <var-decl name='channels' type-id='f0981eeb' visibility='default' filepath='sound/usb/card.h' line='128' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='512'>
+ <var-decl name='channels_max' type-id='f0981eeb' visibility='default' filepath='sound/usb/card.h' line='129' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='544'>
+ <var-decl name='cur_rate' type-id='f0981eeb' visibility='default' filepath='sound/usb/card.h' line='130' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='576'>
+ <var-decl name='period_bytes' type-id='f0981eeb' visibility='default' filepath='sound/usb/card.h' line='131' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='608'>
+ <var-decl name='period_frames' type-id='f0981eeb' visibility='default' filepath='sound/usb/card.h' line='132' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='640'>
+ <var-decl name='buffer_periods' type-id='f0981eeb' visibility='default' filepath='sound/usb/card.h' line='133' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='672'>
+ <var-decl name='altset_idx' type-id='f0981eeb' visibility='default' filepath='sound/usb/card.h' line='134' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='txfr_quirk' type-id='f0981eeb' visibility='default' filepath='sound/usb/card.h' line='135' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1'>
+ <var-decl name='tx_length_quirk' type-id='f0981eeb' visibility='default' filepath='sound/usb/card.h' line='136' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='736'>
+ <var-decl name='fmt_type' type-id='f0981eeb' visibility='default' filepath='sound/usb/card.h' line='137' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='768'>
+ <var-decl name='pkt_offset_adj' type-id='f0981eeb' visibility='default' filepath='sound/usb/card.h' line='138' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='running' type-id='f0981eeb' visibility='default' filepath='sound/usb/card.h' line='140' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='832'>
+ <var-decl name='hwptr_done' type-id='f0981eeb' visibility='default' filepath='sound/usb/card.h' line='142' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='864'>
+ <var-decl name='transfer_done' type-id='f0981eeb' visibility='default' filepath='sound/usb/card.h' line='143' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='896'>
+ <var-decl name='frame_limit' type-id='f0981eeb' visibility='default' filepath='sound/usb/card.h' line='144' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='928'>
+ <var-decl name='ep_num' type-id='f0981eeb' visibility='default' filepath='sound/usb/card.h' line='147' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='960'>
+ <var-decl name='data_endpoint' type-id='d59ce2e7' visibility='default' filepath='sound/usb/card.h' line='148' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1024'>
+ <var-decl name='sync_endpoint' type-id='d59ce2e7' visibility='default' filepath='sound/usb/card.h' line='149' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1088'>
+ <var-decl name='flags' type-id='7359adad' visibility='default' filepath='sound/usb/card.h' line='150' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1152'>
+ <var-decl name='need_setup_ep' type-id='b50a4934' visibility='default' filepath='sound/usb/card.h' line='151' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1160'>
+ <var-decl name='need_setup_fmt' type-id='b50a4934' visibility='default' filepath='sound/usb/card.h' line='152' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1184'>
+ <var-decl name='speed' type-id='f0981eeb' visibility='default' filepath='sound/usb/card.h' line='153' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1216'>
+ <var-decl name='formats' type-id='91ce1af9' visibility='default' filepath='sound/usb/card.h' line='155' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1280'>
+ <var-decl name='num_formats' type-id='f0981eeb' visibility='default' filepath='sound/usb/card.h' line='156' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1344'>
+ <var-decl name='fmt_list' type-id='72f469ec' visibility='default' filepath='sound/usb/card.h' line='157' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1472'>
+ <var-decl name='rate_list' type-id='f5f6e55e' visibility='default' filepath='sound/usb/card.h' line='158' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1600'>
+ <var-decl name='lock' type-id='fb4018a0' visibility='default' filepath='sound/usb/card.h' line='159' column='1'/>
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+ </data-member>
+ <data-member access='public' layout-offset-in-bits='44128'>
+ <var-decl name='datainterval' type-id='f0981eeb' visibility='default' filepath='sound/usb/card.h' line='101' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='44160'>
+ <var-decl name='syncinterval' type-id='f0981eeb' visibility='default' filepath='sound/usb/card.h' line='102' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='44192'>
+ <var-decl name='silence_value' type-id='002ac4a6' visibility='default' filepath='sound/usb/card.h' line='103' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='44224'>
+ <var-decl name='stride' type-id='f0981eeb' visibility='default' filepath='sound/usb/card.h' line='104' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='44256'>
+ <var-decl name='iface' type-id='95e97e5e' visibility='default' filepath='sound/usb/card.h' line='105' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='44288'>
+ <var-decl name='altsetting' type-id='95e97e5e' visibility='default' filepath='sound/usb/card.h' line='105' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='44320'>
+ <var-decl name='skip_packets' type-id='95e97e5e' visibility='default' filepath='sound/usb/card.h' line='106' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='44352'>
+ <var-decl name='lock' type-id='fb4018a0' visibility='default' filepath='sound/usb/card.h' line='109' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='44416'>
+ <var-decl name='list' type-id='72f469ec' visibility='default' filepath='sound/usb/card.h' line='110' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='44544'>
+ <var-decl name='android_kabi_reserved1' type-id='91ce1af9' visibility='default' filepath='sound/usb/card.h' line='112' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='44608'>
+ <var-decl name='android_kabi_reserved2' type-id='91ce1af9' visibility='default' filepath='sound/usb/card.h' line='113' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='44672'>
+ <var-decl name='android_kabi_reserved3' type-id='91ce1af9' visibility='default' filepath='sound/usb/card.h' line='114' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='44736'>
+ <var-decl name='android_kabi_reserved4' type-id='91ce1af9' visibility='default' filepath='sound/usb/card.h' line='115' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='snd_urb_ctx' size-in-bits='1984' is-struct='yes' visibility='default' filepath='sound/usb/card.h' line='44' column='1' id='dc7e95e2'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='urb' type-id='ab85b8f2' visibility='default' filepath='sound/usb/card.h' line='45' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='buffer_size' type-id='f0981eeb' visibility='default' filepath='sound/usb/card.h' line='46' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='128'>
+ <var-decl name='subs' type-id='6b1642ae' visibility='default' filepath='sound/usb/card.h' line='47' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='192'>
+ <var-decl name='ep' type-id='d59ce2e7' visibility='default' filepath='sound/usb/card.h' line='48' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='256'>
+ <var-decl name='index' type-id='95e97e5e' visibility='default' filepath='sound/usb/card.h' line='49' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='288'>
+ <var-decl name='packets' type-id='95e97e5e' visibility='default' filepath='sound/usb/card.h' line='50' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='320'>
+ <var-decl name='packet_size' type-id='70cd8d02' visibility='default' filepath='sound/usb/card.h' line='51' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1856'>
+ <var-decl name='ready_list' type-id='72f469ec' visibility='default' filepath='sound/usb/card.h' line='52' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='snd_usb_packet_info' size-in-bits='1568' is-struct='yes' visibility='default' filepath='sound/usb/card.h' line='74' column='1' id='6ad85953'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='packet_size' type-id='fe4ded8f' visibility='default' filepath='sound/usb/card.h' line='75' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='1536'>
+ <var-decl name='packets' type-id='95e97e5e' visibility='default' filepath='sound/usb/card.h' line='76' column='1'/>
+ </data-member>
+ </class-decl>
+ <class-decl name='__anonymous_struct__' size-in-bits='96' is-struct='yes' is-anonymous='yes' visibility='default' filepath='sound/usb/card.h' line='164' column='1' id='50842758'>
+ <data-member access='public' layout-offset-in-bits='0'>
+ <var-decl name='marker' type-id='95e97e5e' visibility='default' filepath='sound/usb/card.h' line='165' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='32'>
+ <var-decl name='channel' type-id='95e97e5e' visibility='default' filepath='sound/usb/card.h' line='166' column='1'/>
+ </data-member>
+ <data-member access='public' layout-offset-in-bits='64'>
+ <var-decl name='byte_idx' type-id='95e97e5e' visibility='default' filepath='sound/usb/card.h' line='167' column='1'/>
+ </data-member>
+ </class-decl>
+ <pointer-type-def type-id='3abbb22e' size-in-bits='64' id='1102bd14'/>
+ <pointer-type-def type-id='09098b3b' size-in-bits='64' id='a149768b'/>
+ <pointer-type-def type-id='f4c3b244' size-in-bits='64' id='d86551c2'/>
+ <pointer-type-def type-id='d86551c2' size-in-bits='64' id='8f7ff038'/>
+ <pointer-type-def type-id='ae79630f' size-in-bits='64' id='d59ce2e7'/>
+ <pointer-type-def type-id='f709b458' size-in-bits='64' id='ec0e067e'/>
+ <pointer-type-def type-id='3921bd52' size-in-bits='64' id='d24a1720'/>
+ <pointer-type-def type-id='bfbf7968' size-in-bits='64' id='6b1642ae'/>
+ <pointer-type-def type-id='895d5e13' size-in-bits='64' id='9272847f'/>
+ <pointer-type-def type-id='74f4b006' size-in-bits='64' id='5ae15890'/>
+ <function-decl name='find_snd_usb_substream' mangled-name='find_snd_usb_substream' filepath='sound/usb/card.c' line='131' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='find_snd_usb_substream'>
+ <parameter type-id='f0981eeb' name='card_num' filepath='sound/usb/card.c' line='131' column='1'/>
+ <parameter type-id='f0981eeb' name='pcm_idx' filepath='sound/usb/card.c' line='132' column='1'/>
+ <parameter type-id='f0981eeb' name='direction' filepath='sound/usb/card.c' line='132' column='1'/>
+ <parameter type-id='8f7ff038' name='uchip' filepath='sound/usb/card.c' line='133' column='1'/>
+ <parameter type-id='9272847f' name='disconnect_cb' filepath='sound/usb/card.c' line='133' column='1'/>
+ <return type-id='6b1642ae'/>
+ </function-decl>
+ <function-decl name='snd_usb_find_csint_desc' mangled-name='snd_usb_find_csint_desc' filepath='sound/usb/helper.h' line='8' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_usb_find_csint_desc'>
+ <parameter type-id='eaa32e2f'/>
+ <parameter type-id='95e97e5e'/>
+ <parameter type-id='eaa32e2f'/>
+ <parameter type-id='002ac4a6'/>
+ <return type-id='eaa32e2f'/>
+ </function-decl>
+ <function-type size-in-bits='64' id='895d5e13'>
+ <parameter type-id='d86551c2'/>
+ <return type-id='48b5725f'/>
+ </function-type>
+ <function-type size-in-bits='64' id='74f4b006'>
+ <parameter type-id='6b1642ae'/>
+ <parameter type-id='ab85b8f2'/>
+ <return type-id='48b5725f'/>
+ </function-type>
+ </abi-instr>
+ <abi-instr address-size='64' path='sound/usb/pcm.c' language='LANG_C89'>
+ <function-decl name='snd_usb_enable_audio_stream' mangled-name='snd_usb_enable_audio_stream' filepath='sound/usb/pcm.c' line='658' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_usb_enable_audio_stream'>
+ <parameter type-id='6b1642ae' name='subs' filepath='sound/usb/pcm.c' line='658' column='1'/>
+ <parameter type-id='95e97e5e' name='datainterval' filepath='sound/usb/pcm.c' line='659' column='1'/>
+ <parameter type-id='b50a4934' name='enable' filepath='sound/usb/pcm.c' line='659' column='1'/>
+ <return type-id='95e97e5e'/>
+ </function-decl>
+ </abi-instr>
+ </abi-corpus>
+ <abi-corpus version='2.0' path='ufshcd-core.ko' architecture='elf-arm-aarch64'>
+ <abi-instr address-size='64' path='drivers/scsi/ufs/ufs-sysfs.c' language='LANG_C89'>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/scsi/ufs/ufshcd-crypto.c' language='LANG_C89'>
+ </abi-instr>
+ <abi-instr address-size='64' path='drivers/scsi/ufs/ufshcd.c' language='LANG_C89'>
+ <pointer-type-def type-id='b984f4f2' size-in-bits='64' id='4c0ab7c4'/>
+ <function-decl name='bpf_trace_run8' filepath='include/linux/trace_events.h' line='604' column='1' visibility='default' binding='global' size-in-bits='64'>
+ <parameter type-id='bdcee7ae'/>
+ <parameter type-id='3a47d82b'/>
+ <parameter type-id='3a47d82b'/>
+ <parameter type-id='3a47d82b'/>
+ <parameter type-id='3a47d82b'/>
+ <parameter type-id='3a47d82b'/>
+ <parameter type-id='3a47d82b'/>
+ <parameter type-id='3a47d82b'/>
+ <parameter type-id='3a47d82b'/>
+ <return type-id='48b5725f'/>
+ </function-decl>
+ <function-decl name='dmam_alloc_coherent' filepath='include/linux/dma-mapping.h' line='884' column='1' visibility='default' binding='global' size-in-bits='64'>
+ <parameter type-id='fa0b179b'/>
+ <parameter type-id='7359adad'/>
+ <parameter type-id='c0190993'/>
+ <parameter type-id='f0981eeb'/>
+ <return type-id='eaa32e2f'/>
+ </function-decl>
+ <function-decl name='async_schedule' filepath='include/linux/async.h' line='40' column='1' visibility='default' binding='global' size-in-bits='64'>
+ <parameter type-id='4c0ab7c4'/>
+ <parameter type-id='eaa32e2f'/>
+ <return type-id='3a47d82b'/>
+ </function-decl>
+ <function-type size-in-bits='64' id='b984f4f2'>
+ <parameter type-id='eaa32e2f'/>
+ <parameter type-id='3a47d82b'/>
+ <return type-id='48b5725f'/>
+ </function-type>
+ </abi-instr>
+ </abi-corpus>
+ <abi-corpus version='2.0' path='ufshcd-pltfrm.ko' architecture='elf-arm-aarch64'>
+ <abi-instr address-size='64' path='drivers/scsi/ufs/ufshcd-pltfrm.c' language='LANG_C89'>
+ </abi-instr>
+ </abi-corpus>
+</abi-corpus-group>
+
+<!--
+ libabigail: abidw: 2.0.0SOONG BUILD NUMBER PLACEHOLDER
+ built with: clang: Android (7284624, based on r416183b) clang version 12.0.5 (https://android.googlesource.com/toolchain/llvm-project c935d99d7cf2016289302412d708641d52d2f7ee)
+-->
diff --git a/android/abi_gki_aarch64_cuttlefish b/android/abi_gki_aarch64_cuttlefish
new file mode 100644
index 0000000..15e4702
--- /dev/null
+++ b/android/abi_gki_aarch64_cuttlefish
@@ -0,0 +1,1064 @@
+[abi_symbol_list]
+# commonly used symbols
+ add_wait_queue
+ alloc_etherdev_mqs
+ __alloc_pages_nodemask
+ __alloc_skb
+ __alloc_workqueue_key
+ __arch_copy_from_user
+ __arch_copy_to_user
+ arm64_const_caps_ready
+ bcmp
+ blk_queue_max_segment_size
+ bpf_trace_run2
+ bpf_trace_run8
+ cancel_delayed_work
+ cancel_delayed_work_sync
+ cancel_work_sync
+ capable
+ cfg80211_inform_bss_data
+ cfg80211_put_bss
+ __cfi_slowpath
+ __check_object_size
+ __class_create
+ class_destroy
+ complete
+ __const_udelay
+ consume_skb
+ _copy_from_iter_full
+ _copy_to_iter
+ cpu_hwcap_keys
+ cpu_hwcaps
+ cpu_number
+ __cpu_online_mask
+ delayed_work_timer_fn
+ destroy_workqueue
+ _dev_err
+ device_create_file
+ device_register
+ device_remove_file
+ device_unregister
+ _dev_info
+ __dev_kfree_skb_any
+ devm_ioremap_resource
+ devm_kfree
+ devm_kmalloc
+ devm_request_threaded_irq
+ _dev_notice
+ dev_queue_xmit
+ dev_set_name
+ _dev_warn
+ down_read
+ down_write
+ dummy_dma_ops
+ ethtool_op_get_link
+ eth_validate_addr
+ event_triggers_call
+ fd_install
+ find_next_bit
+ find_next_zero_bit
+ finish_wait
+ flush_work
+ fput
+ free_irq
+ free_netdev
+ __free_pages
+ freezing_slow_path
+ get_device
+ get_random_bytes
+ get_unused_fd_flags
+ hwrng_register
+ hwrng_unregister
+ ida_alloc_range
+ ida_free
+ __init_rwsem
+ init_timer_key
+ init_wait_entry
+ __init_waitqueue_head
+ jiffies
+ jiffies_to_usecs
+ kfree
+ kfree_skb
+ __kmalloc
+ kmalloc_caches
+ kmem_cache_alloc
+ kmem_cache_alloc_trace
+ kmem_cache_create
+ kmem_cache_destroy
+ kmem_cache_free
+ kmemdup
+ kobject_create_and_add
+ kobject_put
+ kstrdup
+ kstrtoull
+ ktime_get
+ __list_add_valid
+ __list_del_entry_valid
+ __ll_sc_atomic64_add
+ __ll_sc_atomic64_add_return
+ __ll_sc_atomic64_andnot
+ __ll_sc_atomic64_fetch_or
+ __ll_sc_atomic64_or
+ __ll_sc_atomic_add
+ __ll_sc_atomic_add_return
+ __ll_sc_atomic_sub_return
+ __ll_sc___cmpxchg_case_mb_4
+ __local_bh_enable_ip
+ lock_sock_nested
+ memcpy
+ memset
+ memstart_addr
+ memzero_explicit
+ misc_deregister
+ misc_register
+ mod_timer
+ __module_get
+ module_layout
+ module_put
+ __msecs_to_jiffies
+ msleep
+ __mutex_init
+ mutex_lock
+ mutex_lock_interruptible
+ mutex_unlock
+ netdev_err
+ netdev_info
+ netdev_rx_handler_register
+ netdev_rx_handler_unregister
+ netdev_upper_dev_unlink
+ netif_carrier_off
+ netif_carrier_on
+ netif_device_detach
+ netif_tx_stop_all_queues
+ netif_tx_wake_queue
+ no_llseek
+ nonseekable_open
+ noop_llseek
+ nr_cpu_ids
+ of_find_property
+ of_get_property
+ of_property_read_variable_u32_array
+ param_ops_bool
+ param_ops_charp
+ param_ops_int
+ param_ops_uint
+ passthru_features_check
+ pci_bus_type
+ pci_disable_device
+ pci_enable_device
+ pci_iomap
+ pci_read_config_dword
+ __pci_register_driver
+ pci_request_region
+ pci_set_master
+ pci_unregister_driver
+ perf_trace_buf_alloc
+ perf_trace_run_bpf_submit
+ platform_bus_type
+ platform_device_add
+ platform_device_alloc
+ platform_device_del
+ platform_device_put
+ platform_device_unregister
+ __platform_driver_register
+ platform_driver_unregister
+ platform_get_irq
+ platform_get_resource
+ pm_runtime_enable
+ __pm_runtime_idle
+ __pm_runtime_resume
+ preempt_schedule
+ preempt_schedule_notrace
+ prepare_to_wait_event
+ printk
+ __put_cred
+ put_device
+ __put_page
+ __put_task_struct
+ put_unused_fd
+ queue_delayed_work_on
+ queue_work_on
+ ___ratelimit
+ _raw_spin_lock
+ _raw_spin_lock_bh
+ _raw_spin_lock_irq
+ _raw_spin_lock_irqsave
+ _raw_spin_unlock
+ _raw_spin_unlock_bh
+ _raw_spin_unlock_irq
+ _raw_spin_unlock_irqrestore
+ __rcu_read_lock
+ __rcu_read_unlock
+ refcount_dec_and_test_checked
+ refcount_inc_checked
+ __refrigerator
+ register_netdev
+ register_netdevice_notifier
+ register_virtio_device
+ register_virtio_driver
+ release_sock
+ remove_wait_queue
+ request_threaded_irq
+ rtnl_lock
+ rtnl_unlock
+ schedule
+ schedule_timeout
+ schedule_timeout_uninterruptible
+ seq_printf
+ sg_free_table
+ sg_init_one
+ sg_init_table
+ sg_next
+ skb_clone
+ skb_dequeue
+ skb_put
+ sk_free
+ snd_device_new
+ snd_info_create_card_entry
+ snd_pcm_alt_chmaps
+ snprintf
+ sprintf
+ __stack_chk_fail
+ __stack_chk_guard
+ strcmp
+ strcpy
+ strlcpy
+ strlen
+ strncpy
+ strsep
+ strstr
+ synchronize_irq
+ synchronize_net
+ sysfs_create_group
+ sysfs_create_groups
+ sysfs_remove_group
+ system_freezing_cnt
+ system_wq
+ trace_define_field
+ trace_event_buffer_commit
+ trace_event_buffer_reserve
+ trace_event_ignore_this_pid
+ trace_event_raw_init
+ trace_event_reg
+ trace_handle_return
+ trace_print_symbols_seq
+ trace_raw_output_prep
+ trace_seq_printf
+ __udelay
+ unlock_page
+ unregister_netdev
+ unregister_netdevice_notifier
+ unregister_netdevice_queue
+ unregister_virtio_device
+ unregister_virtio_driver
+ up_read
+ up_write
+ usleep_range
+ vfree
+ virtio_check_driver_offered_feature
+ virtio_config_changed
+ virtqueue_add_inbuf
+ virtqueue_add_outbuf
+ virtqueue_add_sgs
+ virtqueue_detach_unused_buf
+ virtqueue_disable_cb
+ virtqueue_enable_cb
+ virtqueue_get_avail_addr
+ virtqueue_get_buf
+ virtqueue_get_desc_addr
+ virtqueue_get_used_addr
+ virtqueue_get_vring_size
+ virtqueue_is_broken
+ virtqueue_kick
+ virtqueue_kick_prepare
+ virtqueue_notify
+ vmalloc
+ vring_create_virtqueue
+ vring_del_virtqueue
+ vring_interrupt
+ vring_transport_features
+ wait_for_completion
+ wait_woken
+ __wake_up
+ __warn_printk
+ woken_wake_function
+
+# required by ac97_bus.ko
+ bus_register
+ bus_unregister
+
+# required by arm-smmu.ko
+ alloc_io_pgtable_ops
+ amba_bustype
+ bus_set_iommu
+ devm_free_irq
+ driver_find_device
+ driver_for_each_device
+ free_io_pgtable_ops
+ generic_device_group
+ iommu_alloc_resv_region
+ iommu_device_link
+ iommu_device_register
+ iommu_device_sysfs_add
+ iommu_device_unlink
+ iommu_dma_get_resv_regions
+ iommu_fwspec_add_ids
+ iommu_fwspec_free
+ iommu_fwspec_init
+ iommu_get_dma_cookie
+ iommu_group_get_for_dev
+ iommu_group_put
+ iommu_group_ref_get
+ iommu_group_remove_device
+ iommu_present
+ iommu_put_dma_cookie
+ of_device_get_match_data
+ of_dma_is_coherent
+ of_phandle_iterator_args
+ of_phandle_iterator_init
+ of_phandle_iterator_next
+ pci_device_group
+ pci_for_each_dma_alias
+ pci_request_acs
+
+# required by dm-user.ko
+ bio_advance
+ bio_endio
+ bio_put
+ _copy_from_iter
+ copy_page_from_iter
+ copy_page_to_iter
+ dm_register_target
+ dm_unregister_target
+ kasprintf
+ mempool_alloc
+ mempool_exit
+ mempool_free
+ mempool_init
+ mempool_kfree
+ mempool_kmalloc
+
+# required by dummy-cpufreq.ko
+ cpufreq_generic_attr
+ cpufreq_register_driver
+ cpufreq_unregister_driver
+
+# required by dummy_hcd.ko
+ ktime_get_ts64
+ platform_device_add_data
+ scnprintf
+ sg_miter_next
+ sg_miter_start
+ sg_miter_stop
+ usb_add_gadget_udc
+ usb_add_hcd
+ usb_create_hcd
+ usb_create_shared_hcd
+ usb_del_gadget_udc
+ usb_disabled
+ usb_ep_set_maxpacket_limit
+ usb_gadget_giveback_request
+ usb_gadget_udc_reset
+ usb_get_dev
+ usb_hcd_check_unlink_urb
+ usb_hcd_giveback_urb
+ usb_hcd_is_primary_hcd
+ usb_hcd_link_urb_to_ep
+ usb_hcd_poll_rh_status
+ usb_hcd_resume_root_hub
+ usb_hcd_unlink_urb_from_ep
+ usb_put_dev
+ usb_put_hcd
+ usb_remove_hcd
+
+# required by failover.ko
+ netdev_master_upper_dev_link
+ rtnl_is_locked
+
+# required by gnss-cmdline.ko
+ bus_find_device_by_name
+ device_find_child
+
+# required by gnss-serial.ko
+ gnss_allocate_device
+ gnss_deregister_device
+ gnss_insert_raw
+ gnss_put_device
+ gnss_register_device
+ __pm_runtime_disable
+ serdev_device_close
+ serdev_device_open
+ serdev_device_set_baudrate
+ serdev_device_set_flow_control
+ serdev_device_wait_until_sent
+ serdev_device_write
+ serdev_device_write_wakeup
+
+# required by hci_vhci.ko
+ bt_err
+ hci_alloc_dev
+ hci_free_dev
+ hci_recv_frame
+ hci_register_dev
+ hci_unregister_dev
+ skb_pull
+ skb_push
+ skb_queue_head
+ skb_queue_purge
+ skb_queue_tail
+
+# required by incrementalfs.ko
+ bin2hex
+ __break_lease
+ clear_inode
+ __close_fd
+ crc32_le
+ crypto_alloc_shash
+ crypto_destroy_tfm
+ crypto_shash_digest
+ d_add
+ d_drop
+ deactivate_locked_super
+ dentry_open
+ dget_parent
+ d_instantiate
+ d_make_root
+ dput
+ fget
+ flush_dcache_page
+ flush_delayed_work
+ free_pages
+ fs_kobj
+ fsstack_copy_attr_all
+ generic_file_llseek
+ generic_file_mmap
+ generic_file_read_iter
+ generic_file_splice_read
+ generic_read_dir
+ generic_shutdown_super
+ __get_free_pages
+ get_zeroed_page
+ iget5_locked
+ ihold
+ inode_init_once
+ inode_init_owner
+ iput
+ iterate_dir
+ kernel_read
+ kernel_write
+ kern_path
+ __ll_sc___cmpxchg_case_rel_8
+ lockref_get
+ lock_rename
+ lookup_one_len
+ LZ4_decompress_safe
+ match_int
+ match_token
+ notify_change
+ override_creds
+ pagecache_get_page
+ path_get
+ path_put
+ register_filesystem
+ revert_creds
+ seq_puts
+ set_anon_super
+ sget
+ simple_getattr
+ simple_setattr
+ simple_statfs
+ strndup_user
+ sync_filesystem
+ truncate_inode_pages
+ unlock_new_inode
+ unlock_rename
+ unregister_filesystem
+ user_path_at_empty
+ vfs_create
+ vfs_fallocate
+ vfs_getattr
+ vfs_getxattr
+ vfs_link
+ vfs_listxattr
+ vfs_mkdir
+ vfs_rename
+ vfs_rmdir
+ vfs_setxattr
+ vfs_unlink
+
+# required by ion-alloc.ko
+ bpf_trace_run3
+ contig_page_data
+ dma_buf_export
+ dma_buf_fd
+ dma_buf_put
+ kernel_kobj
+ kthread_create_on_node
+ __ll_sc_atomic64_sub_return
+ mod_node_page_state
+ plist_add
+ ptr_to_hashval
+ rb_erase
+ rb_insert_color
+ register_shrinker
+ remap_pfn_range
+ sched_setscheduler
+ sg_alloc_table
+ __sg_page_iter_next
+ __sg_page_iter_start
+ split_page
+ totalram_pages
+ vmap
+ vunmap
+ wake_up_process
+
+# required by nd_virtio.ko
+ bio_alloc_bioset
+ bio_chain
+ fs_bio_set
+ submit_bio
+
+# required by net_failover.ko
+ call_netdevice_notifiers
+ dev_close
+ dev_get_stats
+ dev_mc_sync_multiple
+ dev_mc_unsync
+ dev_open
+ dev_set_mtu
+ dev_uc_sync_multiple
+ dev_uc_unsync
+ __ethtool_get_link_ksettings
+ netdev_change_features
+ netdev_increment_features
+ netdev_lower_state_changed
+
+# required by rtc-test.ko
+ add_timer
+ del_timer
+ devm_rtc_allocate_device
+ ktime_get_real_seconds
+ __rtc_register_device
+ rtc_time64_to_tm
+ rtc_tm_to_time64
+ rtc_update_irq
+
+# required by snd-ac97-codec.ko
+ pci_read_config_word
+ simple_strtoul
+ snd_component_add
+ snd_ctl_add
+ _snd_ctl_add_slave
+ snd_ctl_boolean_mono_info
+ snd_ctl_enum_info
+ snd_ctl_find_id
+ snd_ctl_make_virtual_master
+ snd_ctl_new1
+ snd_ctl_remove_id
+ snd_info_free_entry
+ snd_info_register
+ snd_interval_refine
+ snd_pcm_hw_rule_add
+ snd_pcm_std_chmaps
+ strcat
+
+# required by snd-intel8x0.ko
+ param_ops_bint
+ pci_release_regions
+ pci_request_regions
+ pci_write_config_dword
+ snd_card_disconnect
+ snd_card_free
+ snd_card_new
+ snd_card_register
+ snd_dma_alloc_pages
+ snd_dma_free_pages
+ snd_pci_quirk_lookup
+ snd_pcm_add_chmap_ctls
+ snd_pcm_hw_constraint_integer
+ snd_pcm_hw_constraint_list
+ snd_pcm_hw_constraint_msbits
+ snd_pcm_lib_free_pages
+ snd_pcm_lib_ioctl
+ snd_pcm_lib_malloc_pages
+ snd_pcm_lib_preallocate_pages_for_all
+ snd_pcm_limit_hw_rates
+ snd_pcm_new
+ snd_pcm_period_elapsed
+ snd_pcm_set_ops
+ snd_pcm_suspend_all
+
+# required by test_meminit.ko
+ kmem_cache_alloc_bulk
+ kmem_cache_free_bulk
+
+# required by tpm.ko
+ alloc_chrdev_region
+ cdev_device_add
+ cdev_device_del
+ cdev_init
+ __compat_only_sysfs_link_entry_to_kobj
+ del_timer_sync
+ device_initialize
+ devm_add_action
+ efi
+ hash_digest_size
+ idr_alloc
+ idr_destroy
+ idr_get_next
+ idr_remove
+ idr_replace
+ jiffies_to_msecs
+ memremap
+ memunmap
+ of_property_match_string
+ securityfs_create_dir
+ securityfs_create_file
+ securityfs_remove
+ seq_lseek
+ seq_open
+ seq_putc
+ seq_read
+ seq_release
+ seq_write
+ sysfs_remove_link
+ unregister_chrdev_region
+ __usecs_to_jiffies
+
+# required by tpm_vtpm_proxy.ko
+ anon_inode_getfile
+
+# required by ufshcd-core.ko
+ async_schedule
+ bio_crypt_should_process
+ blk_queue_update_dma_pad
+ bpf_trace_run4
+ bpf_trace_run5
+ clk_disable
+ clk_enable
+ clk_prepare
+ clk_set_rate
+ clk_unprepare
+ dev_driver_string
+ devfreq_add_device
+ devfreq_remove_device
+ devfreq_resume_device
+ devfreq_suspend_device
+ devm_clk_get
+ devm_regulator_get
+ dev_pm_opp_add
+ dev_pm_opp_remove
+ dmam_alloc_coherent
+ down_read_trylock
+ find_last_bit
+ keyslot_manager_create
+ keyslot_manager_destroy
+ keyslot_manager_private
+ keyslot_manager_reprogram_all_keys
+ keyslot_manager_set_max_dun_bytes
+ kstrtouint
+ __ll_sc_atomic64_fetch_andnot_release
+ __ll_sc_atomic64_fetch_or_acquire
+ print_hex_dump
+ regulator_count_voltages
+ regulator_disable
+ regulator_enable
+ regulator_set_load
+ regulator_set_voltage
+ __scsi_add_device
+ scsi_add_host_with_dma
+ scsi_block_requests
+ scsi_change_queue_depth
+ scsi_device_get
+ scsi_device_put
+ scsi_dma_map
+ scsi_dma_unmap
+ __scsi_execute
+ scsi_host_alloc
+ scsi_host_put
+ scsi_print_command
+ scsi_print_sense_hdr
+ scsi_remove_device
+ scsi_remove_host
+ scsi_report_bus_reset
+ scsi_scan_host
+ scsi_unblock_requests
+ sdev_prefix_printk
+ strncmp
+ sysfs_remove_groups
+ trace_print_hex_seq
+ utf16s_to_utf8s
+ wait_for_completion_timeout
+
+# required by ufshcd-pltfrm.ko
+ of_parse_phandle
+ of_property_read_string_helper
+ __pm_runtime_set_status
+
+# required by virt_wifi.ko
+ cfg80211_connect_done
+ cfg80211_disconnected
+ cfg80211_scan_done
+ __dev_get_by_index
+ dev_printk
+ ether_setup
+ ktime_get_with_offset
+ netdev_upper_dev_link
+ netif_stacked_transfer_operstate
+ register_netdevice
+ rtnl_link_register
+ rtnl_link_unregister
+ unregister_netdevice_many
+ wiphy_free
+ wiphy_new_nm
+ wiphy_register
+ wiphy_unregister
+
+# required by virt_wifi_sim.ko
+ ieee80211_get_channel
+ release_firmware
+ request_firmware
+
+# required by virtio-gpu.ko
+ dma_buf_get_uuid
+ dma_fence_context_alloc
+ dma_fence_init
+ dma_fence_match_context
+ dma_fence_release
+ dma_fence_signal_locked
+ dma_fence_wait_timeout
+ drm_add_edid_modes
+ drm_add_modes_noedid
+ drm_atomic_helper_check
+ drm_atomic_helper_cleanup_planes
+ drm_atomic_helper_commit
+ drm_atomic_helper_commit_hw_done
+ drm_atomic_helper_commit_modeset_disables
+ drm_atomic_helper_commit_modeset_enables
+ drm_atomic_helper_commit_planes
+ drm_atomic_helper_connector_destroy_state
+ drm_atomic_helper_connector_duplicate_state
+ drm_atomic_helper_connector_reset
+ drm_atomic_helper_crtc_destroy_state
+ drm_atomic_helper_crtc_duplicate_state
+ drm_atomic_helper_crtc_reset
+ drm_atomic_helper_disable_plane
+ drm_atomic_helper_page_flip
+ drm_atomic_helper_plane_destroy_state
+ drm_atomic_helper_plane_duplicate_state
+ drm_atomic_helper_plane_reset
+ drm_atomic_helper_set_config
+ drm_atomic_helper_shutdown
+ drm_atomic_helper_update_plane
+ drm_atomic_helper_wait_for_vblanks
+ drm_compat_ioctl
+ drm_connector_attach_edid_property
+ drm_connector_attach_encoder
+ drm_connector_cleanup
+ drm_connector_init
+ drm_connector_register
+ drm_connector_unregister
+ drm_connector_update_edid_property
+ drm_crtc_cleanup
+ drm_crtc_init_with_planes
+ drm_crtc_send_vblank_event
+ drm_cvt_mode
+ drm_dbg
+ drm_dev_alloc
+ drm_dev_put
+ drm_dev_register
+ drm_dev_set_unique
+ drm_dev_unregister
+ drm_do_get_edid
+ drm_encoder_cleanup
+ drm_encoder_init
+ drm_err
+ drm_framebuffer_init
+ drm_gem_dmabuf_mmap
+ drm_gem_dmabuf_release
+ drm_gem_dmabuf_vmap
+ drm_gem_dmabuf_vunmap
+ drm_gem_fb_create_handle
+ drm_gem_fb_destroy
+ drm_gem_handle_create
+ drm_gem_map_attach
+ drm_gem_map_detach
+ drm_gem_map_dma_buf
+ drm_gem_object_init
+ drm_gem_object_lookup
+ drm_gem_object_put_unlocked
+ drm_gem_object_release
+ drm_gem_prime_export
+ drm_gem_prime_fd_to_handle
+ drm_gem_prime_handle_to_fd
+ drm_gem_prime_import
+ drm_gem_prime_mmap
+ drm_gem_unmap_dma_buf
+ drm_global_item_ref
+ drm_global_item_unref
+ drm_helper_hpd_irq_event
+ drm_helper_mode_fill_fb_struct
+ drm_helper_probe_single_connector_modes
+ drm_ioctl
+ drm_kms_helper_hotplug_event
+ drm_mode_config_cleanup
+ drm_mode_config_init
+ drm_mode_config_reset
+ drm_mode_probed_add
+ drm_open
+ drm_plane_cleanup
+ drm_poll
+ drm_prime_pages_to_sg
+ drm_put_dev
+ drm_read
+ drm_release
+ drm_set_preferred_mode
+ drm_universal_plane_init
+ __get_task_comm
+ kmalloc_order_trace
+ kvfree
+ kvmalloc_node
+ memdup_user
+ mutex_trylock
+ reservation_object_add_excl_fence
+ sg_alloc_table_from_pages
+ sync_file_create
+ sync_file_get_fence
+ __tracepoint_dma_fence_emit
+ __tracepoint_gpu_mem_total
+ ttm_bo_add_to_lru
+ ttm_bo_del_sub_from_lru
+ ttm_bo_device_init
+ ttm_bo_device_release
+ ttm_bo_dma_acc_size
+ ttm_bo_eviction_valuable
+ ttm_bo_global_init
+ ttm_bo_global_release
+ ttm_bo_init
+ ttm_bo_init_mm
+ ttm_bo_kmap
+ ttm_bo_kunmap
+ ttm_bo_manager_func
+ ttm_bo_mmap
+ ttm_bo_put
+ ttm_bo_validate
+ ttm_bo_wait
+ ttm_dma_tt_fini
+ ttm_dma_tt_init
+ ttm_eu_backoff_reservation
+ ttm_eu_fence_buffer_objects
+ ttm_eu_reserve_buffers
+ ttm_mem_global_init
+ ttm_mem_global_release
+ ttm_tt_init
+ ww_mutex_lock_interruptible
+ ww_mutex_unlock
+
+# required by virtio-rng.ko
+ wait_for_completion_killable
+
+# required by virtio_blk.ko
+ __alloc_disk_node
+ blk_cleanup_queue
+ blk_execute_rq
+ blk_get_request
+ blk_mq_alloc_tag_set
+ blk_mq_complete_request
+ blk_mq_end_request
+ blk_mq_free_tag_set
+ blk_mq_init_queue
+ blk_mq_quiesce_queue
+ blk_mq_start_request
+ blk_mq_start_stopped_hw_queues
+ blk_mq_stop_hw_queue
+ blk_mq_unquiesce_queue
+ blk_mq_virtio_map_queues
+ blk_put_request
+ blk_queue_alignment_offset
+ blk_queue_io_min
+ blk_queue_io_opt
+ blk_queue_logical_block_size
+ blk_queue_max_hw_sectors
+ blk_queue_max_segments
+ blk_queue_physical_block_size
+ blk_queue_write_cache
+ blk_rq_map_kern
+ blk_rq_map_sg
+ blk_status_to_errno
+ del_gendisk
+ device_add_disk
+ kobject_uevent_env
+ memmove
+ put_disk
+ register_blkdev
+ revalidate_disk
+ set_disk_ro
+ string_get_size
+ __sysfs_match_string
+ unregister_blkdev
+
+# required by virtio_console.ko
+ cdev_add
+ cdev_alloc
+ cdev_del
+ device_create
+ device_destroy
+ dma_alloc_from_dev_coherent
+ dma_release_from_dev_coherent
+ fasync_helper
+ hvc_alloc
+ hvc_instantiate
+ hvc_kick
+ hvc_poll
+ hvc_remove
+ __hvc_resize
+ kill_fasync
+ kobject_uevent
+ pipe_lock
+ pipe_unlock
+ __register_chrdev
+ __splice_from_pipe
+ __unregister_chrdev
+
+# required by virtio_input.ko
+ input_alloc_absinfo
+ input_allocate_device
+ input_event
+ input_free_device
+ input_mt_init_slots
+ input_register_device
+ input_set_abs_params
+ input_unregister_device
+
+# required by virtio_mmio.ko
+ device_for_each_child
+ devm_ioremap
+ __devm_request_region
+ iomem_resource
+ memparse
+ platform_device_register_full
+ sscanf
+
+# required by virtio_net.ko
+ arch_bpf_jit_check_func
+ bpf_prog_add
+ bpf_prog_put
+ bpf_prog_sub
+ bpf_warn_invalid_xdp_action
+ build_skb
+ __cpuhp_remove_state
+ __cpuhp_setup_state
+ __cpuhp_state_add_instance
+ __cpuhp_state_remove_instance
+ cpumask_next
+ cpumask_next_wrap
+ cpus_read_lock
+ cpus_read_unlock
+ eth_commit_mac_addr_change
+ eth_prepare_mac_addr_change
+ ethtool_op_get_ts_info
+ eth_type_trans
+ flow_keys_basic_dissector
+ __napi_alloc_skb
+ napi_complete_done
+ napi_consume_skb
+ napi_disable
+ napi_gro_receive
+ napi_hash_del
+ __napi_schedule
+ napi_schedule_prep
+ netdev_notify_peers
+ netdev_warn
+ netif_device_attach
+ netif_napi_add
+ netif_napi_del
+ netif_schedule_queue
+ netif_set_real_num_rx_queues
+ netif_set_real_num_tx_queues
+ __netif_set_xps_queue
+ net_ratelimit
+ nf_conntrack_destroy
+ _raw_spin_trylock
+ skb_add_rx_frag
+ skb_coalesce_rx_frag
+ __skb_flow_dissect
+ skb_page_frag_refill
+ skb_partial_csum_set
+ skb_to_sgvec
+ skb_tstamp_tx
+ __sw_hweight64
+ __tracepoint_xdp_exception
+ virtqueue_add_inbuf_ctx
+ virtqueue_enable_cb_delayed
+ virtqueue_enable_cb_prepare
+ virtqueue_get_buf_ctx
+ virtqueue_poll
+ xdp_do_flush_map
+ xdp_do_redirect
+ xdp_return_frame
+ xdp_return_frame_rx_napi
+ xdp_rxq_info_reg
+ xdp_rxq_info_reg_mem_model
+ xdp_rxq_info_unreg
+
+# required by virtio_pci.ko
+ irq_set_affinity_hint
+ pci_alloc_irq_vectors_affinity
+ pci_find_capability
+ pci_find_ext_capability
+ pci_find_next_capability
+ pci_free_irq_vectors
+ pci_iomap_range
+ pci_irq_get_affinity
+ pci_irq_vector
+ pci_read_config_byte
+ pci_release_region
+ pci_release_selected_regions
+ pci_request_selected_regions
+ virtio_device_freeze
+ virtio_device_restore
+
+# required by virtio_pmem.ko
+ nvdimm_bus_register
+ nvdimm_bus_unregister
+ nvdimm_pmem_region_create
+
+# required by vmw_vsock_virtio_transport.ko
+ synchronize_rcu
+
+# required by vmw_vsock_virtio_transport_common.ko
+ bpf_trace_run10
+
+# required by vsock.ko
+ autoremove_wake_function
+ init_user_ns
+ ns_capable_noaudit
+ prandom_u32
+ prepare_to_wait
+ proto_register
+ proto_unregister
+ _raw_write_lock_bh
+ _raw_write_unlock_bh
+ security_sk_clone
+ security_sock_graft
+ sk_alloc
+ sock_init_data
+ sock_no_accept
+ sock_no_getsockopt
+ sock_no_ioctl
+ sock_no_listen
+ sock_no_mmap
+ sock_no_sendpage
+ sock_no_setsockopt
+ sock_no_socketpair
+ sock_queue_rcv_skb
+ sock_register
+ sock_unregister
+
+# required by vsock_diag.ko
+ __netlink_dump_start
+ __nlmsg_put
+ sock_diag_register
+ sock_diag_save_cookie
+ sock_diag_unregister
+ sock_i_ino
diff --git a/android/abi_gki_aarch64_qcom b/android/abi_gki_aarch64_qcom
new file mode 100644
index 0000000..0840d0a
--- /dev/null
+++ b/android/abi_gki_aarch64_qcom
@@ -0,0 +1,2769 @@
+[abi_symbol_list]
+# commonly used symbols
+ add_timer
+ add_uevent_var
+ alarm_cancel
+ alarm_init
+ alarm_start_relative
+ alarmtimer_get_rtcdev
+ alarm_try_to_cancel
+ alloc_chrdev_region
+ alloc_netdev_mqs
+ __alloc_pages_nodemask
+ __alloc_percpu
+ __alloc_skb
+ __alloc_workqueue_key
+ __arch_copy_from_user
+ __arch_copy_to_user
+ arch_setup_dma_ops
+ arm64_const_caps_ready
+ atomic_notifier_call_chain
+ atomic_notifier_chain_register
+ atomic_notifier_chain_unregister
+ autoremove_wake_function
+ bcmp
+ bin2hex
+ __bitmap_clear
+ bitmap_find_next_zero_area_off
+ __bitmap_set
+ blocking_notifier_call_chain
+ blocking_notifier_chain_register
+ blocking_notifier_chain_unregister
+ bpf_trace_run1
+ bpf_trace_run2
+ bpf_trace_run3
+ bpf_trace_run4
+ bpf_trace_run5
+ bpf_trace_run6
+ bpf_trace_run7
+ bpf_trace_run8
+ bus_find_device
+ bus_for_each_dev
+ bus_register
+ bus_unregister
+ call_rcu
+ cancel_delayed_work
+ cancel_delayed_work_sync
+ cancel_work_sync
+ capable
+ cdev_add
+ cdev_del
+ cdev_init
+ __cfi_slowpath
+ __check_object_size
+ __class_create
+ class_destroy
+ _cleanup_srcu_struct
+ clk_disable
+ clk_enable
+ clk_fixed_factor_ops
+ clk_get
+ clk_get_rate
+ clk_hw_get_name
+ clk_hw_get_num_parents
+ clk_hw_get_rate
+ __clk_is_enabled
+ __clk_mux_determine_rate_closest
+ clk_prepare
+ clk_put
+ clk_round_rate
+ clk_set_flags
+ clk_set_parent
+ clk_set_rate
+ clk_sync_state
+ clk_unprepare
+ clk_unvote_vdd_level
+ clk_vote_vdd_level
+ cma_alloc
+ cma_get_base
+ cma_get_size
+ cma_release
+ compat_alloc_user_space
+ complete
+ complete_all
+ completion_done
+ component_add
+ component_bind_all
+ component_del
+ component_master_add_with_match
+ component_master_del
+ component_match_add_release
+ component_unbind_all
+ config_ep_by_speed
+ config_group_init_type_name
+ __const_udelay
+ consume_skb
+ contig_page_data
+ _copy_from_iter_full
+ cpu_bit_bitmap
+ __cpuhp_remove_state
+ __cpuhp_setup_state
+ cpu_hwcap_keys
+ cpu_hwcaps
+ __cpu_isolated_mask
+ cpumask_next
+ cpu_number
+ __cpu_online_mask
+ cpu_pm_register_notifier
+ __cpu_possible_mask
+ cpus_read_lock
+ cpus_read_unlock
+ cpu_subsys
+ crypto_alloc_shash
+ crypto_destroy_tfm
+ crypto_shash_digest
+ crypto_shash_setkey
+ _ctype
+ delayed_work_timer_fn
+ del_timer
+ del_timer_sync
+ destroy_workqueue
+ _dev_crit
+ dev_driver_string
+ _dev_err
+ devfreq_add_device
+ devfreq_add_governor
+ devfreq_interval_update
+ devfreq_monitor_resume
+ devfreq_monitor_start
+ devfreq_monitor_stop
+ devfreq_monitor_suspend
+ devfreq_recommended_opp
+ devfreq_remove_device
+ devfreq_remove_governor
+ devfreq_resume_device
+ devfreq_suspend_device
+ dev_get_regmap
+ device_add
+ device_create
+ device_create_file
+ device_del
+ device_destroy
+ device_find_child
+ device_for_each_child
+ device_initialize
+ device_init_wakeup
+ device_property_present
+ device_property_read_u32_array
+ device_register
+ device_remove_file
+ device_unregister
+ _dev_info
+ __dev_kfree_skb_any
+ devm_backlight_device_register
+ devm_clk_get
+ devm_clk_hw_register
+ devm_clk_put
+ devm_clk_register
+ devm_extcon_dev_allocate
+ devm_extcon_dev_register
+ devm_free_irq
+ devm_gpiod_get
+ devm_gpiod_get_optional
+ devm_gpio_request
+ devm_gpio_request_one
+ devm_iio_device_alloc
+ __devm_iio_device_register
+ devm_ioremap
+ devm_ioremap_nocache
+ devm_ioremap_resource
+ devm_iounmap
+ devm_kasprintf
+ devm_kfree
+ devm_kmalloc
+ devm_kmemdup
+ devm_kstrdup
+ devm_nvmem_register
+ devm_of_clk_add_hw_provider
+ devm_of_platform_populate
+ devm_phy_get
+ devm_pinctrl_get
+ devm_pinctrl_put
+ devm_pinctrl_register
+ devm_power_supply_register
+ __devm_regmap_init
+ __devm_regmap_init_i2c
+ __devm_regmap_init_mmio_clk
+ devm_regulator_bulk_get
+ devm_regulator_get
+ devm_regulator_get_optional
+ devm_regulator_put
+ devm_regulator_register
+ __devm_request_region
+ devm_request_threaded_irq
+ __devm_reset_control_get
+ devm_reset_controller_register
+ devm_snd_soc_register_component
+ devm_thermal_of_virtual_sensor_register
+ devm_thermal_zone_of_sensor_register
+ devm_usb_get_phy_by_phandle
+ dev_pm_opp_add
+ dev_pm_opp_find_freq_ceil
+ dev_pm_opp_find_freq_floor
+ dev_pm_opp_get_opp_count
+ dev_pm_opp_get_voltage
+ dev_pm_opp_of_add_table
+ dev_pm_opp_put
+ dev_set_name
+ _dev_warn
+ disable_irq
+ disable_irq_nosync
+ dma_alloc_from_dev_coherent
+ dma_buf_attach
+ dma_buf_begin_cpu_access
+ dma_buf_begin_cpu_access_partial
+ dma_buf_detach
+ dma_buf_end_cpu_access
+ dma_buf_end_cpu_access_partial
+ dma_buf_fd
+ dma_buf_get
+ dma_buf_get_flags
+ dma_buf_kmap
+ dma_buf_kunmap
+ dma_buf_map_attachment
+ dma_buf_put
+ dma_buf_unmap_attachment
+ dma_buf_vmap
+ dma_buf_vunmap
+ dma_common_get_sgtable
+ dma_common_mmap
+ dma_contiguous_default_area
+ dma_fence_context_alloc
+ dma_fence_default_wait
+ dma_fence_init
+ dma_fence_release
+ dma_fence_signal
+ dma_fence_signal_locked
+ __dma_flush_area
+ __dma_inv_area
+ dmam_alloc_coherent
+ dma_release_from_dev_coherent
+ dma_request_slave_channel
+ do_exit
+ down_read
+ down_write
+ drain_workqueue
+ driver_register
+ driver_unregister
+ drm_panel_notifier_register
+ drm_panel_notifier_unregister
+ dummy_dma_ops
+ enable_irq
+ ether_setup
+ eth_type_trans
+ event_triggers_call
+ extcon_get_edev_by_phandle
+ extcon_get_state
+ extcon_register_blocking_notifier
+ extcon_register_notifier
+ extcon_set_property
+ extcon_set_property_capability
+ extcon_set_state_sync
+ fd_install
+ fget
+ find_get_pid
+ find_last_bit
+ find_next_bit
+ find_next_zero_bit
+ find_vma
+ finish_wait
+ flush_delayed_work
+ flush_work
+ flush_workqueue
+ fput
+ free_irq
+ free_netdev
+ __free_pages
+ free_pages
+ free_percpu
+ freezing_slow_path
+ fwnode_property_read_u32_array
+ gcd
+ generic_handle_irq
+ genlmsg_put
+ genl_register_family
+ genl_unregister_family
+ gen_pool_add_virt
+ gen_pool_alloc
+ gen_pool_create
+ gen_pool_destroy
+ gen_pool_free
+ get_cpu_device
+ get_device
+ __get_free_pages
+ get_pid_task
+ get_random_bytes
+ __get_task_comm
+ get_unused_fd_flags
+ gpiochip_add_data_with_key
+ gpiochip_add_pin_range
+ gpiochip_generic_free
+ gpiochip_generic_request
+ gpiochip_get_data
+ gpiochip_remove
+ gpiod_direction_input
+ gpiod_direction_output
+ gpiod_direction_output_raw
+ gpiod_get_raw_value
+ gpiod_get_raw_value_cansleep
+ gpiod_get_value
+ gpiod_set_raw_value
+ gpiod_set_value
+ gpiod_set_value_cansleep
+ gpiod_to_irq
+ gpio_free
+ gpio_request
+ gpio_request_one
+ gpio_to_desc
+ handle_edge_irq
+ handle_level_irq
+ handle_nested_irq
+ hex_dump_to_buffer
+ hrtimer_active
+ hrtimer_cancel
+ hrtimer_forward
+ __hrtimer_get_remaining
+ hrtimer_init
+ hrtimer_start_range_ns
+ hrtimer_try_to_cancel
+ i2c_del_driver
+ i2c_register_driver
+ i2c_transfer
+ i2c_transfer_buffer_flags
+ ida_alloc_range
+ ida_free
+ idr_alloc
+ idr_alloc_cyclic
+ idr_destroy
+ idr_find
+ idr_get_next
+ idr_preload
+ idr_remove
+ iio_channel_get
+ iio_read_channel_processed
+ init_dummy_netdev
+ init_net
+ __init_rwsem
+ init_timer_key
+ init_wait_entry
+ __init_waitqueue_head
+ input_allocate_device
+ input_close_device
+ input_event
+ input_free_device
+ input_mt_init_slots
+ input_mt_report_slot_state
+ input_open_device
+ input_register_device
+ input_register_handle
+ input_register_handler
+ input_set_abs_params
+ input_set_capability
+ input_set_timestamp
+ input_unregister_device
+ input_unregister_handle
+ input_unregister_handler
+ int_sqrt
+ iomem_resource
+ iommu_attach_device
+ iommu_detach_device
+ iommu_dma_enable_best_fit_algo
+ iommu_domain_alloc
+ iommu_domain_free
+ iommu_domain_get_attr
+ iommu_domain_set_attr
+ iommu_get_domain_for_dev
+ iommu_map
+ iommu_map_sg
+ iommu_present
+ iommu_set_fault_handler
+ iommu_unmap
+ __ioremap
+ __iounmap
+ __ipv6_addr_type
+ irq_chip_disable_parent
+ irq_chip_enable_parent
+ irq_chip_eoi_parent
+ irq_chip_mask_parent
+ irq_chip_set_affinity_parent
+ irq_chip_set_parent_state
+ irq_chip_set_type_parent
+ irq_chip_set_vcpu_affinity_parent
+ irq_chip_unmask_parent
+ __irq_domain_add
+ irq_domain_alloc_irqs_parent
+ irq_domain_remove
+ irq_domain_set_hwirq_and_chip
+ irq_find_mapping
+ irq_find_matching_fwspec
+ irq_get_irq_data
+ irq_modify_status
+ irq_of_parse_and_map
+ irq_set_affinity_notifier
+ irq_set_chip_and_handler_name
+ irq_set_chip_data
+ irq_set_irqchip_state
+ irq_set_irq_type
+ irq_set_irq_wake
+ irq_to_desc
+ jiffies
+ jiffies_to_msecs
+ jiffies_to_usecs
+ kasprintf
+ kernel_connect
+ kernel_getsockname
+ kernel_kobj
+ kernel_recvmsg
+ kernel_sendmsg
+ kernfs_find_and_get_ns
+ kfree
+ kfree_skb
+ kimage_voffset
+ __kmalloc
+ kmalloc_caches
+ kmalloc_order_trace
+ kmem_cache_alloc
+ kmem_cache_alloc_trace
+ kmem_cache_create
+ kmem_cache_destroy
+ kmem_cache_free
+ kmemdup
+ kobject_create_and_add
+ kobject_del
+ kobject_init_and_add
+ kobject_put
+ kobject_uevent
+ kobject_uevent_env
+ krealloc
+ kset_find_obj
+ ksize
+ kstrdup
+ kstrndup
+ kstrtobool
+ kstrtoint
+ kstrtoll
+ kstrtos8
+ kstrtou16
+ kstrtou8
+ kstrtouint
+ kstrtoull
+ kthread_cancel_work_sync
+ kthread_create_on_node
+ kthread_flush_worker
+ __kthread_init_worker
+ kthread_queue_work
+ kthread_should_stop
+ kthread_stop
+ kthread_worker_fn
+ ktime_get
+ ktime_get_real_ts64
+ ktime_get_with_offset
+ kvfree
+ kvmalloc_node
+ kzfree
+ led_classdev_unregister
+ __list_add_valid
+ __list_del_entry_valid
+ list_sort
+ __ll_sc_atomic64_add
+ __ll_sc_atomic64_add_return
+ __ll_sc_atomic64_andnot
+ __ll_sc_atomic64_fetch_andnot
+ __ll_sc_atomic64_fetch_or
+ __ll_sc_atomic64_or
+ __ll_sc_atomic64_sub
+ __ll_sc_atomic64_sub_return
+ __ll_sc_atomic_add
+ __ll_sc_atomic_add_return
+ __ll_sc_atomic_sub
+ __ll_sc_atomic_sub_return
+ __ll_sc___cmpxchg_case_mb_4
+ __local_bh_enable_ip
+ lock_sock_nested
+ mbox_client_txdone
+ mbox_controller_register
+ mbox_controller_unregister
+ mbox_free_channel
+ mbox_request_channel
+ mbox_send_message
+ media_device_init
+ __media_device_register
+ media_device_unregister
+ media_entity_pads_init
+ memchr
+ memcmp
+ memcpy
+ __memcpy_fromio
+ __memcpy_toio
+ memdup_user
+ memmove
+ mempool_alloc
+ mempool_free
+ mempool_kfree
+ mempool_kmalloc
+ memremap
+ memset
+ __memset_io
+ memstart_addr
+ memzero_explicit
+ misc_deregister
+ misc_register
+ mod_delayed_work_on
+ mod_node_page_state
+ mod_timer
+ module_kset
+ module_layout
+ module_put
+ __msecs_to_jiffies
+ msleep
+ msleep_interruptible
+ __mutex_init
+ mutex_lock
+ mutex_lock_interruptible
+ mutex_trylock
+ mutex_unlock
+ napi_complete_done
+ napi_disable
+ napi_gro_flush
+ napi_gro_receive
+ __napi_schedule
+ napi_schedule_prep
+ __netdev_alloc_skb
+ netif_carrier_off
+ netif_carrier_on
+ netif_napi_add
+ netif_napi_del
+ netif_receive_skb
+ netif_rx
+ netif_rx_ni
+ netif_tx_wake_queue
+ netlink_unicast
+ net_ratelimit
+ nla_memcpy
+ nla_parse
+ nla_put
+ __nlmsg_put
+ no_llseek
+ nr_cpu_ids
+ ns_capable
+ ns_to_timespec64
+ ns_to_timespec
+ nvmem_cell_get
+ nvmem_cell_put
+ nvmem_cell_read
+ nvmem_cell_read_u32
+ nvmem_device_read
+ nvmem_device_write
+ of_address_to_resource
+ of_alias_get_id
+ of_clk_add_provider
+ of_clk_get
+ of_clk_src_onecell_get
+ of_count_phandle_with_args
+ of_device_get_match_data
+ of_device_is_available
+ of_device_is_compatible
+ of_dma_configure
+ of_drm_find_panel
+ of_fdt_get_ddrhbb
+ of_fdt_get_ddrrank
+ of_fdt_get_ddrtype
+ of_find_compatible_node
+ of_find_device_by_node
+ of_find_node_by_name
+ of_find_node_by_phandle
+ of_find_node_opts_by_path
+ of_find_node_with_property
+ of_find_property
+ of_fwnode_ops
+ of_genpd_del_provider
+ of_get_address
+ of_get_child_by_name
+ of_get_cpu_node
+ of_get_named_gpio_flags
+ of_get_next_available_child
+ of_get_next_child
+ of_get_parent
+ of_get_property
+ of_get_regulator_init_data
+ of_graph_get_remote_node
+ of_iomap
+ of_irq_get
+ of_irq_get_byname
+ of_led_classdev_register
+ of_machine_is_compatible
+ of_match_device
+ of_match_node
+ of_modalias_node
+ of_parse_phandle
+ of_parse_phandle_with_args
+ of_parse_phandle_with_fixed_args
+ of_platform_depopulate
+ of_platform_device_create
+ of_platform_populate
+ of_property_count_elems_of_size
+ of_property_match_string
+ of_property_read_string
+ of_property_read_string_helper
+ of_property_read_u32_index
+ of_property_read_u64
+ of_property_read_variable_u32_array
+ of_property_read_variable_u8_array
+ of_prop_next_string
+ of_thermal_handle_trip
+ of_thermal_handle_trip_temp
+ of_translate_address
+ panic
+ panic_notifier_list
+ param_get_int
+ param_ops_bool
+ param_ops_charp
+ param_ops_int
+ param_ops_long
+ param_ops_uint
+ param_set_bool
+ param_set_int
+ pci_bus_type
+ pci_set_master
+ __per_cpu_offset
+ perf_trace_buf_alloc
+ perf_trace_run_bpf_submit
+ pfn_valid
+ phy_exit
+ phy_init
+ phy_power_off
+ phy_power_on
+ pinconf_generic_dt_node_to_map
+ pinctrl_dev_get_drvdata
+ pinctrl_lookup_state
+ pinctrl_select_state
+ pinctrl_utils_free_map
+ platform_bus_type
+ platform_device_add
+ platform_device_add_data
+ platform_device_add_properties
+ platform_device_add_resources
+ platform_device_alloc
+ platform_device_put
+ platform_device_register_full
+ platform_device_unregister
+ __platform_driver_register
+ platform_driver_unregister
+ platform_get_irq
+ platform_get_irq_byname
+ platform_get_resource
+ platform_get_resource_byname
+ platform_irq_count
+ plist_add
+ pm_generic_resume
+ pm_generic_suspend
+ pm_genpd_init
+ pm_power_off
+ pm_qos_add_request
+ pm_qos_remove_request
+ pm_qos_request_active
+ pm_qos_update_request
+ pm_qos_update_request_timeout
+ __pm_relax
+ pm_relax
+ pm_runtime_allow
+ __pm_runtime_disable
+ pm_runtime_enable
+ pm_runtime_forbid
+ pm_runtime_force_resume
+ pm_runtime_force_suspend
+ __pm_runtime_idle
+ pm_runtime_no_callbacks
+ __pm_runtime_resume
+ pm_runtime_set_autosuspend_delay
+ __pm_runtime_set_status
+ __pm_runtime_suspend
+ __pm_runtime_use_autosuspend
+ __pm_stay_awake
+ pm_stay_awake
+ pm_wakeup_dev_event
+ pm_wakeup_ws_event
+ power_kobj
+ power_supply_changed
+ power_supply_get_by_name
+ power_supply_get_drvdata
+ power_supply_get_property
+ power_supply_put
+ power_supply_reg_notifier
+ power_supply_set_property
+ power_supply_unreg_notifier
+ preempt_schedule
+ preempt_schedule_notrace
+ prepare_to_wait_event
+ print_hex_dump
+ printk
+ print_stack_trace
+ proc_dointvec
+ proto_register
+ proto_unregister
+ pskb_expand_head
+ __pskb_pull_tail
+ put_device
+ __put_page
+ put_pid
+ __put_task_struct
+ put_unused_fd
+ queue_delayed_work_on
+ queue_work_on
+ ___ratelimit
+ _raw_read_lock
+ _raw_read_lock_bh
+ _raw_read_lock_irqsave
+ _raw_read_unlock
+ _raw_read_unlock_bh
+ _raw_read_unlock_irqrestore
+ _raw_spin_lock
+ _raw_spin_lock_bh
+ _raw_spin_lock_irq
+ _raw_spin_lock_irqsave
+ _raw_spin_trylock
+ _raw_spin_trylock_bh
+ _raw_spin_unlock
+ _raw_spin_unlock_bh
+ _raw_spin_unlock_irq
+ _raw_spin_unlock_irqrestore
+ _raw_write_lock
+ _raw_write_lock_bh
+ _raw_write_unlock
+ _raw_write_unlock_bh
+ rb_erase
+ rb_first
+ rb_insert_color
+ rb_next
+ __rcu_read_lock
+ __rcu_read_unlock
+ rdev_get_drvdata
+ refcount_dec_and_test_checked
+ refcount_dec_checked
+ refcount_inc_checked
+ refcount_inc_not_zero_checked
+ __refrigerator
+ regcache_cache_only
+ regcache_mark_dirty
+ regcache_sync
+ regcache_sync_region
+ __register_chrdev
+ register_inet6addr_notifier
+ register_inetaddr_notifier
+ register_netdev
+ register_netdevice
+ register_netdevice_notifier
+ register_pernet_subsys
+ register_pm_notifier
+ register_shrinker
+ register_syscore_ops
+ regmap_bulk_read
+ regmap_bulk_write
+ __regmap_init
+ regmap_multi_reg_write
+ regmap_raw_read
+ regmap_raw_write
+ regmap_read
+ regmap_update_bits_base
+ regmap_write
+ regulator_bulk_disable
+ regulator_count_voltages
+ regulator_disable
+ regulator_enable
+ regulator_get
+ regulator_get_voltage
+ regulator_is_enabled
+ regulator_put
+ regulator_set_load
+ regulator_set_mode
+ regulator_set_voltage
+ regulator_sync_state
+ release_firmware
+ release_sock
+ remap_pfn_range
+ remove_proc_entry
+ request_firmware
+ request_firmware_into_buf
+ request_firmware_nowait
+ request_threaded_irq
+ reset_control_assert
+ reset_control_deassert
+ rtc_time64_to_tm
+ rtc_tm_to_time64
+ rtc_valid_tm
+ rtnl_is_locked
+ rtnl_unlock
+ saved_command_line
+ sched_clock
+ sched_setscheduler
+ schedule
+ schedule_timeout
+ scnprintf
+ seq_lseek
+ seq_open
+ seq_printf
+ seq_puts
+ seq_read
+ seq_release
+ set_user_nice
+ sg_alloc_table
+ sg_free_table
+ sg_init_one
+ sg_init_table
+ sg_next
+ __sg_page_iter_next
+ __sg_page_iter_start
+ simple_read_from_buffer
+ single_open
+ single_release
+ sk_alloc
+ skb_add_rx_frag
+ skb_clone
+ skb_copy
+ skb_copy_bits
+ skb_copy_datagram_iter
+ skb_copy_expand
+ skb_dequeue
+ skb_pull
+ skb_push
+ skb_put
+ skb_queue_purge
+ skb_queue_tail
+ skb_set_owner_w
+ skb_trim
+ sk_free
+ smp_call_function_single
+ snd_ctl_boolean_mono_info
+ snd_hwdep_new
+ snd_info_create_card_entry
+ snd_info_create_subdir
+ snd_info_free_entry
+ snd_info_register
+ snd_pcm_format_width
+ snd_pcm_hw_constraint_list
+ snd_pcm_period_elapsed
+ snd_power_wait
+ snd_soc_add_component_controls
+ snd_soc_bytes_tlv_callback
+ snd_soc_component_init_regmap
+ snd_soc_component_read32
+ snd_soc_component_update_bits
+ snd_soc_component_write
+ snd_soc_dapm_add_routes
+ snd_soc_dapm_get_enum_double
+ snd_soc_dapm_get_volsw
+ snd_soc_dapm_ignore_suspend
+ snd_soc_dapm_kcontrol_widget
+ snd_soc_dapm_mixer_update_power
+ snd_soc_dapm_mux_update_power
+ snd_soc_dapm_new_controls
+ snd_soc_dapm_new_widgets
+ snd_soc_dapm_put_enum_double
+ snd_soc_dapm_put_volsw
+ snd_soc_dapm_sync
+ snd_soc_get_volsw
+ snd_soc_get_volsw_sx
+ snd_soc_info_enum_double
+ snd_soc_info_multi_ext
+ snd_soc_info_volsw
+ snd_soc_info_volsw_sx
+ snd_soc_put_volsw
+ snd_soc_put_volsw_sx
+ snd_soc_register_component
+ snd_soc_rtdcom_lookup
+ snd_soc_unregister_component
+ snprintf
+ sock_create
+ sock_init_data
+ sock_no_mmap
+ sock_no_sendpage
+ sock_no_socketpair
+ sock_release
+ sort
+ __spi_register_driver
+ spi_setup
+ spi_sync
+ sprintf
+ sprint_symbol
+ srcu_init_notifier_head
+ srcu_notifier_call_chain
+ srcu_notifier_chain_register
+ srcu_notifier_chain_unregister
+ sscanf
+ __stack_chk_fail
+ __stack_chk_guard
+ strcasecmp
+ strchr
+ strcmp
+ strcpy
+ strim
+ strlcat
+ strlcpy
+ strlen
+ strncasecmp
+ strnchr
+ strncmp
+ strncpy
+ strnlen
+ strnstr
+ strpbrk
+ strrchr
+ strsep
+ strstr
+ __sw_hweight32
+ __sw_hweight64
+ __sw_hweight8
+ sync_file_create
+ sync_file_get_fence
+ synchronize_irq
+ syscon_node_to_regmap
+ sysfs_create_bin_file
+ sysfs_create_file_ns
+ sysfs_create_files
+ sysfs_create_group
+ sysfs_create_groups
+ sysfs_create_link
+ sysfs_notify
+ sysfs_remove_bin_file
+ sysfs_remove_file_ns
+ sysfs_remove_group
+ sysfs_remove_groups
+ sysfs_streq
+ system_freezable_wq
+ system_freezing_cnt
+ system_highpri_wq
+ system_long_wq
+ system_unbound_wq
+ system_wq
+ sys_tz
+ __tasklet_hi_schedule
+ tasklet_init
+ tasklet_kill
+ __tasklet_schedule
+ thermal_cdev_update
+ thermal_cooling_device_unregister
+ thermal_of_cooling_device_register
+ thermal_zone_device_register
+ thermal_zone_device_unregister
+ thermal_zone_device_update
+ thermal_zone_get_temp
+ thermal_zone_get_zone_by_name
+ thermal_zone_of_sensor_register
+ thermal_zone_of_sensor_unregister
+ timer_unstable_counter_workaround
+ totalram_pages
+ __trace_bprintk
+ trace_define_field
+ trace_event_buffer_commit
+ trace_event_buffer_reserve
+ trace_event_ignore_this_pid
+ trace_event_raw_init
+ trace_event_reg
+ trace_handle_return
+ trace_print_flags_seq
+ trace_print_hex_seq
+ trace_print_symbols_seq
+ trace_raw_output_prep
+ trace_seq_printf
+ try_module_get
+ try_to_del_timer_sync
+ tty_flip_buffer_push
+ typec_register_partner
+ typec_register_port
+ typec_set_data_role
+ typec_set_pwr_role
+ typec_unregister_partner
+ uart_add_one_port
+ uart_register_driver
+ uart_remove_one_port
+ uart_unregister_driver
+ __udelay
+ __unregister_chrdev
+ unregister_chrdev_region
+ unregister_inet6addr_notifier
+ unregister_inetaddr_notifier
+ unregister_netdev
+ unregister_netdevice_notifier
+ unregister_netdevice_queue
+ unregister_pernet_subsys
+ unregister_pm_notifier
+ unregister_syscore_ops
+ update_devfreq
+ up_read
+ up_write
+ usb_add_phy_dev
+ usb_assign_descriptors
+ usb_ep_alloc_request
+ usb_ep_autoconfig
+ usb_ep_dequeue
+ usb_ep_disable
+ usb_ep_enable
+ usb_ep_free_request
+ usb_ep_queue
+ usb_ep_set_halt
+ usb_free_all_descriptors
+ usb_function_register
+ usb_function_unregister
+ usb_gadget_wakeup
+ usb_get_dr_mode
+ usb_interface_id
+ usb_put_function_instance
+ usb_remove_phy
+ usb_string_id
+ __usecs_to_jiffies
+ usleep_range
+ v4l2_device_register
+ v4l2_device_unregister
+ v4l2_event_pending
+ v4l2_event_queue
+ v4l2_event_subscribe
+ v4l2_event_unsubscribe
+ v4l2_fh_open
+ v4l2_fh_release
+ vb2_buffer_done
+ vb2_queue_init
+ vfree
+ vfs_read
+ video_devdata
+ video_device_alloc
+ video_device_release
+ video_ioctl2
+ __video_register_device
+ video_unregister_device
+ vmalloc
+ vmalloc_to_page
+ vmap
+ vscnprintf
+ vsnprintf
+ vunmap
+ vzalloc
+ wait_for_completion
+ wait_for_completion_interruptible
+ wait_for_completion_interruptible_timeout
+ wait_for_completion_timeout
+ __wake_up
+ wake_up_process
+ wakeup_source_register
+ wakeup_source_unregister
+ __warn_printk
+ work_busy
+
+# required by adc_tm.ko
+ iio_channel_get_all
+
+# required by adsprpc.ko
+ set_normalized_timespec64
+ try_wait_for_completion
+
+# required by arm-memlat-mon.ko
+ perf_event_create_kernel_counter
+ perf_event_enable
+ perf_event_read_value
+ perf_event_release_kernel
+
+# required by arm-smmu.ko
+ alloc_io_pgtable_ops
+ alloc_pages_exact
+ amba_bustype
+ bus_set_iommu
+ device_link_add
+ device_link_del
+ _dev_notice
+ driver_find_device
+ driver_for_each_device
+ fast_smmu_put_dma_cookie
+ free_io_pgtable_ops
+ free_pages_exact
+ generic_device_group
+ iommu_alloc_resv_region
+ iommu_debugfs_top
+ iommu_device_register
+ iommu_dma_get_resv_regions
+ iommu_fwspec_add_ids
+ iommu_fwspec_free
+ iommu_fwspec_init
+ iommu_group_get
+ iommu_group_get_for_dev
+ iommu_group_get_iommudata
+ iommu_group_put
+ iommu_group_ref_get
+ iommu_group_remove_device
+ iommu_group_set_iommudata
+ iommu_put_dma_cookie
+ of_dma_is_coherent
+ of_n_addr_cells
+ of_n_size_cells
+ of_phandle_iterator_args
+ of_phandle_iterator_init
+ of_phandle_iterator_next
+ pci_device_group
+ pci_for_each_dma_alias
+ pci_request_acs
+ regulator_disable_deferred
+ report_iommu_fault
+ __tracepoint_smmu_init
+ __tracepoint_tlbi_end
+ __tracepoint_tlbi_start
+ __tracepoint_tlbsync_timeout
+
+# required by at24.ko
+ i2c_match_id
+ i2c_new_dummy
+ i2c_unregister_device
+
+# required by bluetooth_power.ko
+ rfkill_alloc
+ rfkill_destroy
+ rfkill_init_sw_state
+ rfkill_register
+ rfkill_unregister
+
+# required by cam-sync.ko
+ media_device_cleanup
+ platform_device_register
+
+# required by cam_cci.ko
+ down
+ up
+ video_usercopy
+
+# required by cam_flash.ko
+ thermal_zone_get_cdev_by_name
+
+# required by cam_ife_hw_mgr.ko
+ __ll_sc_atomic_fetch_add
+
+# required by cam_req_mgr.ko
+ v4l2_device_register_subdev
+ v4l2_device_register_subdev_nodes
+ v4l2_device_unregister_subdev
+ v4l2_subdev_fops
+ v4l2_subdev_init
+
+# required by cam_res_mgr.ko
+ gpiod_set_raw_value_cansleep
+ led_trigger_event
+ led_trigger_register_simple
+ led_trigger_unregister_simple
+
+# required by cam_smmu_api.ko
+ iommu_dma_reserve_iova
+
+# required by cam_utils.ko
+ gpio_free_array
+ of_clk_get_from_provider
+ __release_region
+ __request_region
+
+# required by citadel-spi.ko
+ nonseekable_open
+ spi_bus_lock
+ spi_bus_unlock
+ spi_sync_locked
+
+# required by clk-qcom.ko
+ clk_aggregate_rate
+ __clk_determine_rate
+ clk_fixed_rate_ops
+ clk_hw_get_flags
+ clk_hw_get_parent
+ clk_hw_get_parent_by_index
+ clk_hw_is_enabled
+ clk_hw_is_prepared
+ clk_hw_round_rate
+ clk_unvote_rate_vdd
+ clk_vote_rate_vdd
+ devm_add_action
+ divider_get_val
+ divider_recalc_rate
+ divider_ro_round_rate_parent
+ divider_round_rate_parent
+ of_genpd_add_provider_onecell
+ pm_genpd_add_subdomain
+ pm_genpd_remove_subdomain
+ rational_best_approximation
+ regulator_get_drvdata
+ syscon_regmap_lookup_by_phandle
+
+# required by clk-spmi-pmic-div.ko
+ __ndelay
+ of_clk_get_parent_name
+
+# required by cmd-db.ko
+ of_reserved_mem_lookup
+
+# required by cnss_prealloc.ko
+ save_stack_trace
+
+# required by coresight-clk-amba-placeholder.ko
+ amba_driver_register
+ amba_driver_unregister
+
+# required by cpu_isolate.ko
+ device_online
+ sched_isolate_cpu
+ sched_unisolate_cpu
+ sched_unisolate_cpu_unlocked
+
+# required by ddr_stats.ko
+ arch_timer_get_rate
+
+# required by devfreq_devbw.ko
+ dev_pm_opp_set_supported_hw
+
+# required by devfreq_qcom_fw.ko
+ devm_devfreq_add_device
+ dev_pm_opp_remove_table
+
+# required by diagchar.ko
+ cdev_alloc
+ crc_ccitt
+ crc_ccitt_table
+ kernel_restart
+ kernel_setsockopt
+ mempool_create
+ mempool_destroy
+ send_sig_info
+ time64_to_tm
+
+# required by dm-user.ko
+ bio_advance
+ bio_endio
+ bio_put
+ _copy_from_iter
+ copy_page_from_iter
+ copy_page_to_iter
+ _copy_to_iter
+ dm_register_target
+ dm_unregister_target
+ mempool_exit
+ mempool_init
+
+# required by dwc3-haps.ko
+ pcim_enable_device
+ __pci_register_driver
+ pci_unregister_driver
+
+# required by dwc3-of-simple.ko
+ of_reset_control_array_get
+ reset_control_put
+ reset_control_reset
+
+# required by dwc3-qcom.ko
+ devm_extcon_register_notifier
+ devm_reset_control_array_get
+
+# required by dwc3.ko
+ clk_bulk_disable
+ clk_bulk_enable
+ clk_bulk_get
+ clk_bulk_prepare
+ clk_bulk_put
+ clk_bulk_unprepare
+ device_property_read_string
+ device_property_read_u8_array
+ devm_usb_get_phy
+ extcon_find_edev_by_node
+ extcon_unregister_notifier
+ of_usb_get_phy_mode
+ phy_create_lookup
+ phy_pm_runtime_get_sync
+ phy_pm_runtime_put_sync
+ phy_remove_lookup
+ phy_set_mode
+ pinctrl_pm_select_default_state
+ pinctrl_pm_select_sleep_state
+ usb_add_gadget_udc
+ usb_del_gadget_udc
+ usb_ep_set_maxpacket_limit
+ usb_gadget_giveback_request
+ usb_gadget_map_request_by_dev
+ usb_gadget_set_state
+ usb_gadget_udc_reset
+ usb_gadget_unmap_request_by_dev
+ usb_gadget_vbus_draw
+ usb_get_maximum_speed
+
+# required by early_random.ko
+ add_hwgenerator_randomness
+
+# required by ebtable_broute.ko
+ br_should_route_hook
+ synchronize_net
+
+# required by ebtables.ko
+ audit_enabled
+ audit_log
+ nf_register_net_hooks
+ nf_register_sockopt
+ nf_unregister_net_hooks
+ nf_unregister_sockopt
+ __request_module
+ strscpy
+ __vmalloc
+ xt_check_match
+ xt_check_target
+ xt_compat_add_offset
+ xt_compat_calc_jump
+ xt_compat_flush_offsets
+ xt_compat_init_offsets
+ xt_compat_lock
+ xt_compat_match_offset
+ xt_compat_target_offset
+ xt_compat_unlock
+ xt_data_to_user
+ xt_find_match
+ xt_register_target
+ xt_request_find_match
+ xt_request_find_target
+ xt_unregister_target
+
+# required by eud.ko
+ uart_insert_char
+
+# required by event_timer.ko
+ cpumask_next_and
+ timerqueue_add
+ timerqueue_del
+ timerqueue_iterate_next
+
+# required by fsa4480-i2c.ko
+ of_find_i2c_device_by_node
+
+# required by ftm5.ko
+ ktime_get_coarse_real_ts64
+ proc_create
+ proc_mkdir_data
+ seq_write
+
+# required by google-bms.ko
+ full_name_hash
+
+# required by governor_bw_hwmon.ko
+ argv_free
+ argv_split
+
+# required by gpi.ko
+ dma_async_device_register
+ dma_async_tx_descriptor_init
+ dma_get_slave_channel
+ of_dma_controller_register
+ _raw_write_lock_irq
+ _raw_write_unlock_irq
+
+# required by heatmap.ko
+ vb2_fop_mmap
+ vb2_fop_poll
+ vb2_fop_read
+ vb2_fop_release
+ vb2_ioctl_create_bufs
+ vb2_ioctl_dqbuf
+ vb2_ioctl_expbuf
+ vb2_ioctl_qbuf
+ vb2_ioctl_querybuf
+ vb2_ioctl_reqbufs
+ vb2_ioctl_streamoff
+ vb2_ioctl_streamon
+ vb2_ops_wait_finish
+ vb2_ops_wait_prepare
+ vb2_plane_vaddr
+ vb2_vmalloc_memops
+ video_device_release_empty
+
+# required by i2c-qcom-geni.ko
+ i2c_add_adapter
+ i2c_del_adapter
+ i2c_get_dma_safe_msg_buf
+ i2c_put_dma_safe_msg_buf
+
+# required by incrementalfs.ko
+ __audit_inode_child
+ __break_lease
+ clear_inode
+ __close_fd
+ d_add
+ d_delete
+ d_drop
+ deactivate_locked_super
+ dentry_open
+ dget_parent
+ d_instantiate
+ d_make_root
+ down_read_killable
+ down_write_killable
+ dput
+ filemap_fault
+ filemap_map_pages
+ filemap_page_mkwrite
+ flush_dcache_page
+ fs_kobj
+ fsnotify
+ __fsnotify_parent
+ fsstack_copy_attr_all
+ __fsverity_verify_signature
+ generic_file_llseek
+ generic_file_read_iter
+ generic_file_splice_read
+ generic_fillattr
+ generic_read_dir
+ generic_shutdown_super
+ get_zeroed_page
+ iget5_locked
+ ihold
+ inode_init_once
+ inode_init_owner
+ inode_set_flags
+ iput
+ iterate_dir
+ kernel_read
+ kernel_write
+ kern_path
+ kobject_add
+ kobject_init
+ kobj_sysfs_ops
+ __ll_sc___cmpxchg_case_rel_8
+ lockref_get
+ lock_rename
+ lookup_one_len
+ LZ4_decompress_safe
+ match_int
+ match_strdup
+ match_token
+ memchr_inv
+ noop_llseek
+ notify_change
+ override_creds
+ pagecache_get_page
+ path_get
+ path_put
+ __put_cred
+ register_filesystem
+ revert_creds
+ set_anon_super
+ sget
+ simple_setattr
+ simple_statfs
+ strndup_user
+ sync_filesystem
+ sysfs_emit
+ touch_atime
+ truncate_inode_pages
+ unlock_new_inode
+ unlock_page
+ unlock_rename
+ unregister_filesystem
+ user_path_at_empty
+ vfs_create
+ vfs_fallocate
+ vfs_fsync
+ vfs_getattr
+ vfs_getxattr
+ vfs_link
+ vfs_listxattr
+ vfs_mkdir
+ vfs_rename
+ vfs_rmdir
+ vfs_setxattr
+ vfs_truncate
+ vfs_unlink
+ ZSTD_decompressStream
+ ZSTD_DStreamWorkspaceBound
+ ZSTD_initDStream
+
+# required by ion-alloc.ko
+ dma_buf_export
+ dma_get_device_base
+ dma_get_size
+ mm_event_count
+ __next_zones_zonelist
+ ptr_to_hashval
+ sched_setattr
+ split_page
+ zone_watermark_ok_safe
+
+# required by ipa3.ko
+ add_wait_queue
+ alloc_etherdev_mqs
+ eth_mac_addr
+ kstrtos8_from_user
+ pci_clear_master
+ pci_disable_device
+ pci_enable_device
+ pci_release_region
+ pci_request_region
+ remove_wait_queue
+ vmemdup_user
+ vm_iomap_memory
+ wait_woken
+ woken_wake_function
+
+# required by lcd.ko
+ devres_add
+ devres_alloc_node
+ devres_free
+ devres_release
+
+# required by lpm-stats.ko
+ kobject_get
+ module_ktype
+ simple_write_to_buffer
+
+# required by machine_dlkm.ko
+ devm_snd_soc_register_card
+ snd_soc_card_change_online_state
+ snd_soc_component_set_sysclk
+ snd_soc_dai_get_channel_map
+ snd_soc_dai_set_channel_map
+ snd_soc_dai_set_fmt
+ snd_soc_dai_set_pll
+ snd_soc_dai_set_sysclk
+ snd_soc_dai_set_tdm_slot
+ snd_soc_get_pcm_runtime
+ snd_soc_of_get_dai_link_codecs
+ snd_soc_of_parse_audio_routing
+ snd_soc_of_parse_card_name
+ snd_soc_pm_ops
+ snd_soc_unregister_card
+ soc_find_component_locked
+
+# required by mbhc_dlkm.ko
+ snd_jack_set_key
+ snd_soc_card_jack_new
+ snd_soc_jack_report
+
+# required by minidump_log.ko
+ __bss_stop
+ irq_stack_ptr
+ log_buf_addr_get
+ log_buf_len_get
+ __per_cpu_end
+ per_cpu_ptr_to_phys
+ __per_cpu_start
+ _sdata
+ vendor_panic_cb
+
+# required by msm-poweroff.ko
+ arm_pm_restart
+ flush_cache_all
+ kimage_vaddr
+ register_die_notifier
+
+# required by msm-vidc.ko
+ v4l2_ctrl_find
+ v4l2_ctrl_get_name
+ v4l2_ctrl_handler_free
+ v4l2_ctrl_handler_init_class
+ __v4l2_ctrl_modify_range
+ v4l2_ctrl_new_custom
+ v4l2_ctrl_new_std
+ v4l2_ctrl_new_std_menu
+ v4l2_event_dequeue
+ v4l2_event_queue_fh
+ v4l2_fh_add
+ v4l2_fh_del
+ v4l2_fh_exit
+ v4l2_fh_init
+ v4l2_s_ctrl
+ vb2_dqbuf
+ vb2_qbuf
+ vb2_queue_release
+ vb2_reqbufs
+ vb2_streamoff
+ vb2_streamon
+
+# required by msm_adreno.ko
+ bpf_trace_run10
+ __clk_get_name
+ devfreq_cooling_unregister
+ device_show_int
+ device_store_int
+ dev_pm_opp_disable
+ dev_pm_opp_find_freq_exact
+ dev_pm_opp_register_notifier
+ dev_pm_opp_unregister_notifier
+ __dma_clean_area
+ dma_fence_add_callback
+ dma_fence_array_ops
+ dma_fence_remove_callback
+ getboottime64
+ get_random_u32
+ get_task_mm
+ get_task_pid
+ get_unmapped_area
+ get_user_pages
+ idr_for_each
+ idr_replace
+ init_uts_ns
+ iterate_fd
+ kern_addr_valid
+ kernfs_create_link
+ ktime_get_real_seconds
+ __ll_sc_atomic64_xor
+ __ll_sc_atomic_or
+ mmap_min_addr
+ mmput
+ mm_trace_rss_stat
+ of_devfreq_cooling_register
+ plist_del
+ rb_last
+ rb_prev
+ security_mmap_addr
+ set_page_dirty_lock
+ sg_alloc_table_from_pages
+ shmem_read_mapping_page_gfp
+ sysfs_remove_files
+ __tracepoint_gpu_mem_total
+ unmapped_area_topdown
+ unregister_shrinker
+ vm_insert_page
+ vm_insert_pfn
+
+# required by msm_bus_rpmh.ko
+ of_clk_get_by_name
+ raw_notifier_call_chain
+ raw_notifier_chain_register
+ raw_notifier_chain_unregister
+ rt_mutex_lock
+ rt_mutex_unlock
+
+# required by msm_drm.ko
+ adjust_managed_page_count
+ bpf_trace_run11
+ bpf_trace_run12
+ __clk_get_hw
+ clk_get_parent
+ device_create_with_groups
+ devm_clk_bulk_get
+ devm_of_pwm_get
+ devm_pwm_put
+ dma_fence_wait_timeout
+ dma_release_declared_memory
+ do_wait_intr
+ drm_add_edid_modes
+ drm_add_modes_noedid
+ drm_atomic_commit
+ drm_atomic_get_connector_state
+ drm_atomic_get_crtc_state
+ drm_atomic_get_plane_state
+ drm_atomic_get_private_obj_state
+ drm_atomic_helper_check
+ drm_atomic_helper_cleanup_planes
+ drm_atomic_helper_commit_duplicated_state
+ drm_atomic_helper_commit_hw_done
+ drm_atomic_helper_commit_modeset_disables
+ drm_atomic_helper_commit_modeset_enables
+ drm_atomic_helper_commit_planes
+ __drm_atomic_helper_connector_destroy_state
+ __drm_atomic_helper_connector_duplicate_state
+ __drm_atomic_helper_connector_reset
+ __drm_atomic_helper_crtc_destroy_state
+ __drm_atomic_helper_crtc_duplicate_state
+ __drm_atomic_helper_disable_plane
+ drm_atomic_helper_disable_plane
+ drm_atomic_helper_duplicate_state
+ drm_atomic_helper_page_flip
+ __drm_atomic_helper_plane_duplicate_state
+ drm_atomic_helper_prepare_planes
+ __drm_atomic_helper_private_obj_duplicate_state
+ __drm_atomic_helper_set_config
+ drm_atomic_helper_set_config
+ drm_atomic_helper_swap_state
+ drm_atomic_helper_update_legacy_modeset_state
+ drm_atomic_helper_update_plane
+ drm_atomic_helper_wait_for_fences
+ drm_atomic_helper_wait_for_vblanks
+ drm_atomic_private_obj_init
+ drm_atomic_set_crtc_for_connector
+ drm_atomic_set_fence_for_plane
+ drm_atomic_set_mode_for_crtc
+ drm_atomic_state_alloc
+ drm_atomic_state_clear
+ drm_atomic_state_default_clear
+ drm_atomic_state_default_release
+ __drm_atomic_state_free
+ drm_atomic_state_init
+ drm_bridge_attach
+ drm_bridge_disable
+ drm_bridge_enable
+ drm_bridge_mode_set
+ drm_bridge_post_disable
+ drm_bridge_pre_enable
+ drm_compat_ioctl
+ drm_connector_attach_encoder
+ drm_connector_cleanup
+ drm_connector_init
+ drm_connector_list_iter_begin
+ drm_connector_list_iter_end
+ drm_connector_list_iter_next
+ drm_connector_register
+ drm_connector_unregister
+ drm_connector_update_edid_property
+ drm_crtc_cleanup
+ drm_crtc_handle_vblank
+ drm_crtc_init_with_planes
+ drm_crtc_send_vblank_event
+ drm_crtc_vblank_get
+ drm_crtc_vblank_off
+ drm_crtc_vblank_on
+ drm_crtc_vblank_put
+ drm_crtc_vblank_reset
+ drm_crtc_wait_one_vblank
+ drm_dbg
+ drm_debug
+ drm_detect_hdmi_monitor
+ drm_detect_monitor_audio
+ drm_dev_alloc
+ drm_dev_dbg
+ drm_dev_printk
+ drm_dev_put
+ drm_dev_register
+ drm_dev_unregister
+ drm_dp_atomic_find_vcpi_slots
+ drm_dp_atomic_release_vcpi_slots
+ drm_dp_aux_register
+ drm_dp_aux_unregister
+ drm_dp_bw_code_to_link_rate
+ drm_dp_calc_pbn_mode
+ drm_dp_channel_eq_ok
+ drm_dp_check_act_status
+ drm_dp_clock_recovery_ok
+ drm_dp_dpcd_read
+ drm_dp_dpcd_read_link_status
+ drm_dp_dpcd_write
+ drm_dp_find_vcpi_slots
+ drm_dp_get_adjust_request_pre_emphasis
+ drm_dp_get_adjust_request_voltage
+ drm_dp_link_configure
+ drm_dp_link_power_down
+ drm_dp_link_power_up
+ drm_dp_link_rate_to_bw_code
+ drm_dp_link_train_channel_eq_delay
+ drm_dp_link_train_clock_recovery_delay
+ drm_dp_mst_allocate_vcpi
+ drm_dp_mst_deallocate_vcpi
+ drm_dp_mst_detect_port
+ drm_dp_mst_get_edid
+ drm_dp_mst_hpd_irq
+ drm_dp_mst_reset_vcpi_slots
+ drm_dp_mst_topology_mgr_destroy
+ drm_dp_mst_topology_mgr_init
+ drm_dp_mst_topology_mgr_set_mst
+ drm_dp_send_power_updown_phy
+ drm_dp_update_payload_part1
+ drm_dp_update_payload_part2
+ drm_edid_duplicate
+ drm_edid_is_valid
+ drm_encoder_cleanup
+ drm_encoder_init
+ drm_err
+ drm_event_reserve_init_locked
+ drm_format_horz_chroma_subsampling
+ drm_format_info
+ drm_format_num_planes
+ drm_format_plane_cpp
+ drm_format_vert_chroma_subsampling
+ drm_framebuffer_init
+ drm_framebuffer_lookup
+ drm_framebuffer_remove
+ drm_framebuffer_unregister_private
+ drm_gem_create_mmap_offset
+ drm_gem_fb_create_handle
+ drm_gem_fb_destroy
+ drm_gem_fb_get_obj
+ drm_gem_free_mmap_offset
+ drm_gem_get_pages
+ drm_gem_handle_create
+ drm_gem_mmap
+ drm_gem_mmap_obj
+ drm_gem_object_init
+ drm_gem_object_lookup
+ drm_gem_object_put
+ drm_gem_object_put_unlocked
+ drm_gem_object_release
+ drm_gem_prime_export
+ drm_gem_prime_fd_to_handle
+ drm_gem_prime_handle_to_fd
+ drm_gem_private_object_init
+ drm_gem_put_pages
+ drm_gem_vm_close
+ drm_gem_vm_open
+ drm_get_connector_status_name
+ drm_get_edid
+ drm_helper_hpd_irq_event
+ drm_helper_mode_fill_fb_struct
+ drm_helper_probe_single_connector_modes
+ drm_ioctl
+ drm_irq_install
+ drm_irq_uninstall
+ drm_kms_helper_poll_disable
+ drm_kms_helper_poll_enable
+ drm_kms_helper_poll_fini
+ drm_kms_helper_poll_init
+ drm_match_cea_mode
+ drm_mm_init
+ drm_mm_insert_node_in_range
+ drm_mm_remove_node
+ drm_mm_takedown
+ drm_mode_config_cleanup
+ drm_mode_config_init
+ drm_mode_config_reset
+ drm_mode_convert_umode
+ drm_mode_copy
+ drm_mode_create
+ drm_mode_create_colorspace_property
+ drm_mode_debug_printmodeline
+ drm_mode_duplicate
+ drm_mode_equal
+ drm_mode_object_find
+ drm_mode_object_get
+ drm_mode_object_put
+ drm_mode_parse_command_line_for_connector
+ drm_mode_probed_add
+ drm_modeset_acquire_fini
+ drm_modeset_acquire_init
+ drm_modeset_backoff
+ drm_mode_set_crtcinfo
+ drm_modeset_drop_locks
+ drm_modeset_lock
+ drm_modeset_lock_all
+ drm_modeset_lock_all_ctx
+ drm_mode_set_name
+ drm_modeset_unlock
+ drm_modeset_unlock_all
+ drm_mode_vrefresh
+ drm_object_attach_property
+ drm_object_property_set_value
+ drm_of_component_match_add
+ drm_open
+ drm_panel_add
+ drm_panel_init
+ drm_panel_notifier_call_chain
+ drm_panel_remove
+ drm_plane_cleanup
+ drm_plane_create_rotation_property
+ drm_plane_helper_disable
+ drm_poll
+ drm_prime_gem_destroy
+ drm_prime_pages_to_sg
+ drm_property_blob_get
+ drm_property_blob_put
+ drm_property_create
+ drm_property_create_bitmask
+ drm_property_create_blob
+ drm_property_create_enum
+ drm_property_create_range
+ drm_property_lookup_blob
+ drm_read
+ drm_release
+ drm_rotation_simplify
+ drm_send_event_locked
+ drm_set_preferred_mode
+ drm_universal_plane_init
+ drm_vblank_init
+ drm_wait_one_vblank
+ get_vm_area
+ invalidate_mapping_pages
+ ioremap_page_range
+ irq_domain_xlate_onecell
+ kernfs_notify
+ kernfs_put
+ kthread_cancel_delayed_work_sync
+ kthread_delayed_work_timer_fn
+ kthread_flush_work
+ kthread_mod_delayed_work
+ kthread_park
+ kthread_parkme
+ kthread_queue_delayed_work
+ kthread_should_park
+ kthread_unpark
+ memblock_free
+ memparse
+ mipi_dsi_create_packet
+ mipi_dsi_dcs_read
+ mipi_dsi_dcs_write
+ mipi_dsi_dcs_write_buffer
+ mipi_dsi_host_register
+ mipi_dsi_host_unregister
+ nsecs_to_jiffies
+ of_drm_find_bridge
+ of_genpd_add_provider_simple
+ of_graph_get_next_endpoint
+ of_graph_get_remote_port_parent
+ of_graph_parse_endpoint
+ param_ops_string
+ pm_genpd_remove
+ regulator_get_mode
+ regulator_get_optional
+ reservation_object_wait_timeout_rcu
+ reservation_ww_class
+ shmem_truncate_range
+ strreplace
+ timespec64_to_jiffies
+ tracing_off
+ unmap_kernel_range
+ unmap_mapping_range
+ vm_get_page_prot
+ vm_insert_mixed
+ __wake_up_locked
+
+# required by msm_ext_display.ko
+ devm_extcon_dev_unregister
+
+# required by msm_geni_serial.ko
+ console_stop
+ console_suspend_enabled
+ do_SAK
+ handle_sysrq
+ oops_in_progress
+ __tty_insert_flip_char
+ tty_insert_flip_string_fixed_flag
+ uart_console_device
+ uart_console_write
+ uart_get_baud_rate
+ uart_parse_options
+ uart_resume_port
+ uart_set_options
+ uart_suspend_port
+ uart_update_timeout
+ uart_write_wakeup
+
+# required by msm_ipc_logging.ko
+ _raw_read_lock_irq
+ _raw_read_unlock_irq
+ _raw_write_lock_irqsave
+ _raw_write_unlock_irqrestore
+
+# required by msm_lmh_dcvs.ko
+ cpufreq_cpu_get
+ cpufreq_platform_cooling_register
+ __tracepoint_clock_set_rate
+
+# required by msm_minidump.ko
+ linux_banner_ptr
+
+# required by msm_npu.ko
+ kmem_cache_create_usercopy
+
+# required by msm_pm.ko
+ arm_cpuidle_suspend
+ cpu_do_idle
+ cpuidle_dev
+ cpuidle_register_device
+ cpuidle_register_driver
+ cpuidle_register_governor
+ cpuidle_unregister_driver
+ cpu_pm_enter
+ cpu_pm_exit
+ get_next_event_cpu
+ param_get_bool
+ param_get_uint
+ pending_ipi
+ pm_qos_request_for_cpu
+ pm_qos_request_for_cpumask
+ s2idle_set_ops
+ set_update_ipi_history_callback
+ suspend_set_ops
+ suspend_valid_only_mem
+ tick_broadcast_oneshot_control
+ tick_nohz_get_sleep_length
+
+# required by msm_qmp.ko
+ mbox_chan_received_data
+ mbox_chan_txdone
+
+# required by msm_rng.ko
+ crypto_register_rngs
+ crypto_unregister_rngs
+ hwrng_register
+ hwrng_unregister
+
+# required by msm_scm.ko
+ __arm_smccc_smc
+
+# required by msm_sharedmem.ko
+ __uio_register_device
+ uio_unregister_device
+
+# required by p9221_charger.ko
+ crc8
+ crc8_populate_msb
+
+# required by peripheral-loader.ko
+ __iowrite32_copy
+ memblock_overlaps_memory
+ of_prop_next_u32
+
+# required by phy-generic.ko
+ regulator_set_current_limit
+
+# required by phy-qcom-ufs.ko
+ __devm_of_phy_provider_register
+ devm_phy_create
+ of_phy_simple_xlate
+
+# required by pinctrl-msm.ko
+ device_property_read_u16_array
+ gpiochip_line_is_valid
+ gpiochip_set_chained_irqchip
+ handle_bad_irq
+ irq_chip_set_wake_parent
+ irq_create_fwspec_mapping
+ irq_domain_free_irqs_top
+ __irq_set_handler
+ irq_set_handler_data
+ of_irq_domain_map
+ register_restart_handler
+ unregister_restart_handler
+
+# required by platform_dlkm.ko
+ __ll_sc___cmpxchg_case_mb_8
+ of_property_read_variable_u16_array
+ snd_ctl_add
+ snd_ctl_enum_info
+ snd_ctl_new1
+ snd_ctl_notify
+ snd_ctl_remove
+ snd_pcm_add_chmap_ctls
+ snd_pcm_add_usr_ctls
+ snd_pcm_add_volume_ctls
+ snd_pcm_hw_constraint_integer
+ snd_pcm_hw_constraint_minmax
+ snd_pcm_hw_constraint_step
+ snd_pcm_lib_ioctl
+ snd_pcm_std_chmaps
+ snd_pcm_stop
+ snd_soc_card_get_kcontrol
+ snd_soc_new_compress
+ snd_timer_interrupt
+
+# required by pwm-qti-lpg.ko
+ devm_nvmem_device_get
+ pwmchip_add
+ pwmchip_remove
+
+# required by q6_dlkm.ko
+ kset_create_and_add
+ kset_unregister
+ ktime_get_raw_ts64
+ ktime_get_ts64
+ register_chrdev_region
+
+# required by qcom-cpufreq-hw.ko
+ arch_set_freq_scale
+ cpufreq_cpu_get_raw
+ cpufreq_freq_attr_scaling_available_freqs
+ cpufreq_freq_attr_scaling_boost_freqs
+ cpufreq_generic_frequency_table_verify
+ cpufreq_register_driver
+ em_register_perf_domain
+ of_cpufreq_cooling_register
+ of_dev_pm_opp_get_cpu_power
+
+# required by qcom-pdc.ko
+ irq_chip_get_parent_state
+ irq_chip_retrigger_hierarchy
+ irq_domain_create_hierarchy
+ irq_domain_free_irqs_common
+ irq_domain_update_bus_token
+ of_irq_find_parent
+
+# required by qcom-spmi-pmic.ko
+ __spmi_driver_register
+
+# required by qcom-spmi-sdam.ko
+ nvmem_register
+ nvmem_unregister
+
+# required by qcom-spmi-temp-alarm.ko
+ devm_iio_channel_get
+
+# required by qcom-spmi-wled.ko
+ devm_of_led_classdev_register
+
+# required by qcom_edac.ko
+ edac_device_add_device
+ edac_device_alloc_ctl_info
+ edac_device_alloc_index
+ edac_device_del_device
+ edac_device_free_ctl_info
+ edac_device_handle_ce
+ edac_device_handle_ue
+
+# required by qcom_glink_native.ko
+ __irq_set_affinity
+ sched_setaffinity
+
+# required by qcom_hwspinlock.ko
+ devm_regmap_field_alloc
+ hwspin_lock_register
+ hwspin_lock_unregister
+ regmap_field_read
+ regmap_field_update_bits_base
+
+# required by qcom_llcc_pmu.ko
+ perf_pmu_register
+
+# required by qcom_rpmh.ko
+ irq_get_irqchip_state
+
+# required by qcom_socinfo.ko
+ arch_read_hardware_id
+ soc_device_register
+ soc_device_to_device
+
+# required by qcrypto.ko
+ crypto_ablkcipher_type
+ crypto_ahash_digest
+ crypto_ahash_setkey
+ crypto_ahash_type
+ crypto_alloc_ahash
+ crypto_alloc_sync_skcipher
+ crypto_dequeue_request
+ crypto_enqueue_request
+ crypto_init_queue
+ crypto_register_aead
+ crypto_register_ahash
+ crypto_register_alg
+ crypto_unregister_aead
+ crypto_unregister_ahash
+ crypto_unregister_alg
+ des_ekey
+ llist_add_batch
+ scatterwalk_ffwd
+ scatterwalk_map_and_copy
+ sg_copy_from_buffer
+ sg_copy_to_buffer
+
+# required by qmi_helpers.ko
+ sock_create_kern
+
+# required by qpnp-battery.ko
+ __class_register
+
+# required by qpnp-power-on.ko
+ boot_reason
+ cold_boot
+ _dev_emerg
+ devm_input_allocate_device
+
+# required by qpnp-qgauge.ko
+ rtc_class_close
+ rtc_class_open
+ rtc_read_time
+
+# required by qpnp-smb5-charger.ko
+ alarm_expires_remaining
+ iio_channel_release
+
+# required by qpnp_pdphy.ko
+ device_get_named_child_node
+ devm_regulator_register_notifier
+ hrtimer_init_sleeper
+
+# required by qrtr.ko
+ alloc_skb_with_frags
+ datagram_poll
+ in_egroup_p
+ netlink_capable
+ __radix_tree_insert
+ radix_tree_iter_delete
+ radix_tree_lookup
+ radix_tree_next_chunk
+ refcount_dec_not_one
+ rtnl_register_module
+ rtnl_unregister
+ skb_condense
+ skb_free_datagram
+ __skb_pad
+ skb_recv_datagram
+ skb_store_bits
+ sock_alloc_send_skb
+ sock_get_timestamp
+ sock_no_accept
+ sock_no_getsockopt
+ sock_no_listen
+ sock_no_setsockopt
+ sock_no_shutdown
+ sock_queue_rcv_skb
+ sock_register
+ sock_unregister
+
+# required by qseecom.ko
+ __arch_copy_in_user
+ firmware_request_nowarn
+ get_option
+ sigprocmask
+
+# required by qtee_shm_bridge.ko
+ do_tlb_conf_fault_cb
+ __flush_dcache_area
+ gen_pool_best_fit
+ gen_pool_set_algo
+ gen_pool_virt_to_phys
+
+# required by ramdump.ko
+ init_srcu_struct
+ __srcu_read_lock
+ __srcu_read_unlock
+ synchronize_srcu
+
+# required by regmap-spmi.ko
+ spmi_ext_register_read
+ spmi_ext_register_readl
+ spmi_ext_register_write
+ spmi_ext_register_writel
+ spmi_register_read
+ spmi_register_write
+ spmi_register_zero_write
+
+# required by rmnet.ko
+ build_skb
+ csum_ipv6_magic
+ csum_partial
+ csum_tcpudp_nofold
+ __dev_get_by_index
+ dev_queue_xmit
+ get_current_napi_context
+ gro_cells_destroy
+ gro_cells_init
+ gro_cells_receive
+ ip_compute_csum
+ ipv6_ext_hdr
+ ipv6_skip_exthdr
+ netdev_rx_handler_register
+ netdev_rx_handler_unregister
+ netif_schedule_queue
+ ___pskb_trim
+ qdisc_reset
+ rtnl_link_register
+ rtnl_link_unregister
+ rtnl_trylock
+ set_normalized_timespec
+ set_task_boost
+ skb_append_pagefrags
+ skb_checksum
+ synchronize_rcu
+ unregister_netdevice_many
+
+# required by rndis.ko
+ dev_get_stats
+ print_hex_dump_bytes
+
+# required by roles.ko
+ class_find_device
+ device_connection_find_match
+ __sysfs_match_string
+
+# required by rpmsg_core.ko
+ dev_pm_domain_attach
+ dev_pm_domain_detach
+ of_device_modalias
+ of_device_uevent_modalias
+ strcspn
+
+# required by rq_stats.ko
+ register_tick_sched_wakeup_callback
+
+# required by rtc-pm8xxx.ko
+ devm_request_any_context_irq
+ devm_rtc_device_register
+ rtc_update_irq
+
+# required by sctp.ko
+ __bitmap_shift_right
+ __bitmap_weight
+ compat_ip_getsockopt
+ compat_ip_setsockopt
+ compat_ipv6_getsockopt
+ compat_ipv6_setsockopt
+ compat_sock_common_getsockopt
+ compat_sock_common_setsockopt
+ crc32c
+ crc32c_csum_stub
+ __crc32c_le_shift
+ dev_get_by_index_rcu
+ dst_release
+ fl6_sock_lookup
+ fl6_update_dst
+ flex_array_alloc
+ flex_array_free
+ flex_array_get
+ flex_array_prealloc
+ flex_array_put
+ icmp_err_convert
+ icmpv6_err_convert
+ in6_dev_finish_destroy
+ inet6_add_offload
+ inet6_add_protocol
+ inet6_bind
+ inet6_del_protocol
+ inet6_destroy_sock
+ inet6_getname
+ inet6_ioctl
+ inet6_register_protosw
+ inet6_release
+ inet6_unregister_protosw
+ inet_accept
+ inet_add_offload
+ inet_add_protocol
+ inet_addr_type
+ inet_bind
+ inet_ctl_sock_create
+ inet_del_offload
+ inet_del_protocol
+ inet_get_local_port_range
+ inet_getname
+ inet_ioctl
+ inet_recvmsg
+ inet_register_protosw
+ inet_release
+ inet_sendmsg
+ inet_shutdown
+ inet_sk_set_state
+ inet_sock_destruct
+ inet_unregister_protosw
+ iov_iter_revert
+ ip6_dst_lookup_flow
+ ip6_xmit
+ __ip_dev_find
+ ip_getsockopt
+ __ip_queue_xmit
+ ip_route_output_flow
+ ip_setsockopt
+ ipv6_chk_addr
+ ipv6_dup_options
+ ipv6_getsockopt
+ ipv6_setsockopt
+ kfree_call_rcu
+ memcg_sockets_enabled_key
+ memory_cgrp_subsys_on_dfl_key
+ napi_busy_loop
+ net_enable_timestamp
+ nf_conntrack_destroy
+ nr_free_buffer_pages
+ overflowuid
+ percpu_counter_add_batch
+ percpu_counter_batch
+ percpu_counter_destroy
+ __percpu_counter_init
+ prandom_u32
+ prepare_to_wait
+ prepare_to_wait_exclusive
+ proc_create_net_data
+ proc_create_net_single
+ proc_dointvec_minmax
+ proc_dostring
+ proc_doulongvec_minmax
+ _proc_mkdir
+ put_cmsg
+ rcu_barrier
+ refcount_add_checked
+ refcount_sub_and_test_checked
+ register_net_sysctl
+ remove_proc_subtree
+ rfs_needed
+ rhashtable_free_and_destroy
+ rhashtable_insert_slow
+ rhashtable_walk_enter
+ rhashtable_walk_exit
+ rhashtable_walk_next
+ rhashtable_walk_start_check
+ rhashtable_walk_stop
+ rhltable_init
+ rht_bucket_nested
+ rht_bucket_nested_insert
+ rps_cpu_mask
+ rps_sock_flow_table
+ security_inet_conn_established
+ security_sctp_assoc_request
+ security_sctp_bind_connect
+ security_sctp_sk_clone
+ send_sig
+ __skb_checksum
+ skb_queue_head
+ skb_segment
+ sk_busy_loop_end
+ sk_common_release
+ sk_filter_trim_cap
+ __sk_mem_reclaim
+ __sk_mem_schedule
+ sk_setup_caps
+ snmp_get_cpu_field
+ sock_alloc_file
+ sock_common_getsockopt
+ sock_common_setsockopt
+ sock_i_ino
+ sock_i_uid
+ sock_kmalloc
+ sock_prot_inuse_add
+ __sock_recv_ts_and_drops
+ sock_wake_async
+ sock_wfree
+ timer_reduce
+ unregister_net_sysctl_table
+ __wake_up_sync_key
+ __xfrm_policy_check
+
+# required by sctp_diag.ko
+ inet_diag_msg_attrs_fill
+ inet_diag_msg_common_fill
+ inet_diag_register
+ inet_diag_unregister
+ netlink_net_capable
+ nla_reserve_64bit
+ nla_reserve
+ sock_diag_check_cookie
+ sock_diag_save_cookie
+
+# required by sec_touch.ko
+ filp_close
+ filp_open
+ input_mt_destroy_slots
+ strncat
+ sysfs_remove_link
+
+# required by secure_buffer.ko
+ trace_print_array_seq
+
+# required by slg51000-regulator.ko
+ rdev_get_id
+ regulator_disable_regmap
+ regulator_enable_regmap
+ regulator_get_voltage_sel_regmap
+ regulator_is_enabled_regmap
+ regulator_list_voltage_linear
+ regulator_map_voltage_linear
+ regulator_notifier_call_chain
+ regulator_set_voltage_sel_regmap
+
+# required by smcinvoke.ko
+ anon_inode_getfile
+
+# required by smem.ko
+ devm_ioremap_wc
+ hwspin_lock_free
+ hwspin_lock_request_specific
+ __hwspin_lock_timeout
+ __hwspin_unlock
+ of_hwspin_lock_get_id
+
+# required by smp2p.ko
+ irq_domain_xlate_twocell
+ irq_set_parent
+
+# required by snd-soc-cs35l41.ko
+ regcache_drop_region
+ regmap_multi_reg_write_bypassed
+ regulator_bulk_enable
+ snd_pcm_format_physical_width
+ snd_soc_get_enum_double
+ snd_soc_get_volsw_range
+ snd_soc_info_volsw_range
+ snd_soc_put_enum_double
+ snd_soc_put_volsw_range
+
+# required by snd-soc-rt5514-spi.ko
+ _snd_pcm_lib_alloc_vmalloc_buffer
+ snd_pcm_lib_free_vmalloc_buffer
+ snd_pcm_lib_get_vmalloc_page
+ snd_soc_set_runtime_hwparams
+
+# required by snd-soc-rt5514.ko
+ regmap_register_patch
+ snd_soc_bytes_info_ext
+ snd_soc_params_to_frame_size
+
+# required by snd-soc-wm-adsp.ko
+ regmap_async_complete
+ regmap_raw_write_async
+ snd_compr_stop_error
+ snd_soc_component_disable_pin
+ snd_soc_component_force_enable_pin
+
+# required by spi-geni-qcom.ko
+ dma_release_channel
+ __spi_alloc_controller
+ spi_register_controller
+ spi_unregister_controller
+
+# required by spmi-pmic-arb.ko
+ irq_set_chained_handler_and_data
+ spmi_controller_add
+ spmi_controller_alloc
+ spmi_controller_remove
+
+# required by st21nfc.ko
+ device_set_wakeup_capable
+
+# required by subsystem-restart.ko
+ system_state
+
+# required by swr_ctrl_dlkm.ko
+ pm_runtime_autosuspend_expiration
+
+# required by system_pm.ko
+ arch_timer_mem_get_cval
+
+# required by tcpm.ko
+ dev_fwnode
+ fwnode_property_present
+ fwnode_property_read_string
+ typec_altmode_attention
+ typec_altmode_notify
+ typec_altmode_update_active
+ typec_altmode_vdm
+ typec_find_port_data_role
+ typec_find_port_power_role
+ typec_find_power_role
+ typec_match_altmode
+ typec_partner_register_altmode
+ typec_partner_set_identity
+ typec_port_register_altmode
+ typec_set_mode
+ typec_set_orientation
+ typec_set_pwr_opmode
+ typec_set_vconn_role
+ typec_unregister_altmode
+ typec_unregister_port
+
+# required by tps-regulator.ko
+ gpiod_export
+ gpiod_get_from_of_node
+ regulator_list_voltage_table
+ regulator_map_voltage_ascend
+
+# required by ufshcd-core.ko
+ async_schedule
+ bio_crypt_should_process
+ blk_queue_max_segment_size
+ blk_queue_rq_timeout
+ blk_queue_update_dma_pad
+ dev_pm_opp_remove
+ down_read_trylock
+ down_write_trylock
+ keyslot_manager_create
+ keyslot_manager_destroy
+ keyslot_manager_private
+ keyslot_manager_reprogram_all_keys
+ keyslot_manager_set_max_dun_bytes
+ __ll_sc_atomic64_fetch_andnot_release
+ __ll_sc_atomic64_fetch_or_acquire
+ mm_event_end
+ __scsi_add_device
+ scsi_add_host_with_dma
+ scsi_block_requests
+ scsi_change_queue_depth
+ scsi_device_get
+ scsi_device_put
+ scsi_dma_map
+ scsi_dma_unmap
+ __scsi_execute
+ scsi_host_alloc
+ scsi_host_put
+ scsi_print_command
+ scsi_print_sense_hdr
+ scsi_remove_device
+ scsi_remove_host
+ scsi_report_bus_reset
+ scsi_scan_host
+ scsi_set_cmd_timeout_override
+ scsi_unblock_requests
+ sdev_prefix_printk
+ trace_output_call
+ utf16s_to_utf8s
+
+# required by usb-audio-qmi.ko
+ find_snd_usb_substream
+ snd_usb_enable_audio_stream
+ snd_usb_find_csint_desc
+ usb_alloc_coherent
+ usb_free_coherent
+ usb_get_controller_id
+ usb_get_sec_event_ring_phys_addr
+ usb_get_xfer_ring_phys_addr
+ usb_ifnum_to_if
+ usb_sec_event_ring_cleanup
+ usb_sec_event_ring_setup
+ usb_stop_endpoint
+
+# required by usb-dwc3-msm.ko
+ device_wakeup_disable
+ extcon_get_edev_name
+ extcon_get_property
+ pm_runtime_barrier
+ regulator_register_notifier
+ regulator_unregister_notifier
+ usb_gadget_vbus_connect
+ usb_gadget_vbus_disconnect
+ usb_register_atomic_notify
+ usb_register_notify
+ usb_speed_string
+ usb_unregister_atomic_notify
+ usb_unregister_notify
+
+# required by usb_f_diag.ko
+ refcount_dec_and_lock
+
+# required by usb_f_gsi.ko
+ dev_get_by_name
+ usb_composite_setup_continue
+ usb_ep_autoconfig_by_name
+ usb_func_ep_queue
+ usb_func_wakeup
+ usb_gsi_ep_op
+
+# required by usb_f_mtp.ko
+ usb_os_desc_prepare_interf_dir
+ vfs_write
+
+# required by usb_f_qdss.ko
+ usb_ep_autoconfig_ss
+
+# required by usf_dlkm.ko
+ strncpy_from_user
+
+# required by vd6281_module.ko
+ i2c_smbus_read_byte_data
+ i2c_smbus_write_byte_data
+
+# required by watchdog_v2.ko
+ cpu_pm_unregister_notifier
+ __cpu_present_mask
+ disable_percpu_irq
+ enable_percpu_irq
+ free_percpu_irq
+ irq_stat
+ kstat
+ kstat_irqs_usr
+ nr_irqs
+ panic_timeout
+ __request_percpu_irq
+
+# required by wcd_core_dlkm.ko
+ devm_regmap_add_irq_chip
+ devm_regmap_del_irq_chip
+ handle_simple_irq
+ irq_create_mapping
+ regmap_irq_get_virq
+
+# required by wlan.ko
+ bitmap_print_to_pagebuf
+ __cfg80211_alloc_event_skb
+ __cfg80211_alloc_reply_skb
+ cfg80211_ap_stopped
+ cfg80211_calculate_bitrate
+ cfg80211_chandef_create
+ cfg80211_ch_switch_notify
+ cfg80211_connect_done
+ cfg80211_del_sta_sinfo
+ cfg80211_disconnected
+ cfg80211_external_auth_request
+ cfg80211_ft_event
+ cfg80211_get_bss
+ cfg80211_gtk_rekey_notify
+ cfg80211_ibss_joined
+ cfg80211_inform_bss_frame_data
+ cfg80211_mgmt_tx_status
+ cfg80211_michael_mic_failure
+ cfg80211_new_sta
+ cfg80211_pmksa_candidate_notify
+ cfg80211_put_bss
+ cfg80211_ready_on_channel
+ cfg80211_remain_on_channel_expired
+ cfg80211_roamed
+ cfg80211_rx_mgmt
+ cfg80211_rx_unprot_mlme_mgmt
+ cfg80211_scan_done
+ cfg80211_sched_scan_results
+ __cfg80211_send_event_skb
+ cfg80211_tdls_oper_request
+ cfg80211_unlink_bss
+ cfg80211_update_owe_info_event
+ cfg80211_vendor_cmd_reply
+ complete_and_exit
+ cpufreq_quick_get_max
+ cpu_topology
+ crypto_aead_setauthsize
+ crypto_aead_setkey
+ crypto_alloc_aead
+ crypto_alloc_base
+ crypto_alloc_skcipher
+ crypto_shash_final
+ crypto_shash_update
+ dev_alloc_name
+ dump_stack
+ hex2bin
+ hex_to_bin
+ ieee80211_channel_to_frequency
+ ieee80211_frequency_to_channel
+ ieee80211_get_channel
+ ieee80211_hdrlen
+ iommu_iova_to_phys
+ irq_set_affinity_hint
+ mac_pton
+ netif_tx_stop_all_queues
+ netlink_broadcast
+ __netlink_kernel_create
+ netlink_kernel_release
+ nla_put_64bit
+ nla_strlcpy
+ param_get_string
+ param_ops_byte
+ param_set_copystring
+ pci_read_config_dword
+ pci_read_config_word
+ pci_write_config_dword
+ pci_write_config_word
+ PDE_DATA
+ pm_freezing
+ pm_system_wakeup
+ proc_create_data
+ proc_mkdir
+ register_netevent_notifier
+ register_sysctl_table
+ regulatory_set_wiphy_regd
+ rtnl_lock
+ save_stack_trace_tsk
+ schedule_timeout_interruptible
+ seq_vprintf
+ set_cpus_allowed_ptr
+ skip_spaces
+ strchrnul
+ unregister_netevent_notifier
+ unregister_sysctl_table
+ vprintk
+ wiphy_free
+ wiphy_new_nm
+ wiphy_register
+ wiphy_unregister
+ wireless_send_event
+
+# required by wsa883x_dlkm.ko
+ snd_info_create_module_entry
+ snd_soc_component_exit_regmap
+
+# required by xhci-plat-hcd.ko
+ device_wakeup_enable
+ usb_add_hcd
+ __usb_create_hcd
+ usb_disabled
+ usb_hcd_is_primary_hcd
+ usb_hcd_platform_shutdown
+ usb_put_hcd
+ usb_remove_hcd
+ xhci_gen_setup
+ xhci_init_driver
+ xhci_resume
+ xhci_run
+ xhci_suspend
+
+# preserved by --additions-only
+ crc32_le
+ generic_file_mmap
+ idr_alloc_u32
+ simple_getattr
+ simple_strtoull
+ soc_find_component
+ vfs_statx
+ vm_map_ram
+ vm_unmap_ram
diff --git a/arch/Kconfig b/arch/Kconfig
index e3a030f..01684e9 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -482,6 +482,118 @@
about 20% of all kernel functions, which increases the kernel code
size by about 2%.
+config LTO
+ def_bool n
+
+config ARCH_SUPPORTS_LTO_CLANG
+ bool
+ help
+ An architecture should select this option if it supports:
+ - compiling with clang,
+ - compiling inline assembly with clang's integrated assembler,
+ - and linking with LLD.
+
+config ARCH_SUPPORTS_THINLTO
+ bool
+ help
+ An architecture should select this if it supports clang's ThinLTO.
+
+config THINLTO
+ bool "Use clang ThinLTO (EXPERIMENTAL)"
+ depends on LTO_CLANG && ARCH_SUPPORTS_THINLTO
+ default y
+ help
+ Use ThinLTO to speed up Link Time Optimization.
+
+choice
+ prompt "Link-Time Optimization (LTO) (EXPERIMENTAL)"
+ default LTO_NONE
+ help
+ This option turns on Link-Time Optimization (LTO).
+
+config LTO_NONE
+ bool "None"
+
+config LTO_CLANG
+ bool "Use clang Link Time Optimization (LTO) (EXPERIMENTAL)"
+ depends on ARCH_SUPPORTS_LTO_CLANG
+ depends on !FTRACE_MCOUNT_RECORD || HAVE_C_RECORDMCOUNT
+ depends on !KASAN
+ depends on CC_IS_CLANG && LD_IS_LLD
+ select LTO
+ help
+ This option enables clang's Link Time Optimization (LTO), which allows
+ the compiler to optimize the kernel globally at link time. If you
+ enable this option, the compiler generates LLVM IR instead of object
+ files, and the actual compilation from IR occurs at the LTO link step,
+ which may take several minutes.
+
+ If you select this option, you must compile the kernel with clang and
+ LLD.
+
+endchoice
+
+config CFI
+ bool
+
+config CFI_PERMISSIVE
+ bool "Use CFI in permissive mode"
+ depends on CFI
+ help
+ When selected, Control Flow Integrity (CFI) violations result in a
+ warning instead of a kernel panic. This option is useful for finding
+ CFI violations in drivers during development.
+
+config CFI_CLANG
+ bool "Use clang Control Flow Integrity (CFI) (EXPERIMENTAL)"
+ depends on LTO_CLANG
+ depends on KALLSYMS
+ select CFI
+ help
+ This option enables clang Control Flow Integrity (CFI), which adds
+ runtime checking for indirect function calls.
+
+config CFI_CLANG_SHADOW
+ bool "Use CFI shadow to speed up cross-module checks"
+ default y
+ depends on CFI_CLANG
+ help
+ If you select this option, the kernel builds a fast look-up table of
+ CFI check functions in loaded modules to reduce overhead.
+
+config ARCH_SUPPORTS_SHADOW_CALL_STACK
+ bool
+ help
+ An architecture should select this if it supports Clang's Shadow
+ Call Stack, has asm/scs.h, and implements runtime support for shadow
+ stack switching.
+
+config SHADOW_CALL_STACK
+ bool "Clang Shadow Call Stack"
+ depends on ARCH_SUPPORTS_SHADOW_CALL_STACK
+ help
+ This option enables Clang's Shadow Call Stack, which uses a
+ shadow stack to protect function return addresses from being
+ overwritten by an attacker. More information can be found from
+ Clang's documentation:
+
+ https://clang.llvm.org/docs/ShadowCallStack.html
+
+ Note that security guarantees in the kernel differ from the ones
+ documented for user space. The kernel must store addresses of shadow
+ stacks used by other tasks and interrupt handlers in memory, which
+ means an attacker capable reading and writing arbitrary memory may
+ be able to locate them and hijack control flow by modifying shadow
+ stacks that are not currently in use.
+
+config SHADOW_CALL_STACK_VMAP
+ bool "Use virtually mapped shadow call stacks"
+ depends on SHADOW_CALL_STACK
+ help
+ Use virtually mapped shadow call stacks. Selecting this option
+ provides better stack exhaustion protection, but increases per-thread
+ memory consumption as a full page is allocated for each shadow stack.
+
config HAVE_ARCH_WITHIN_STACK_FRAMES
bool
help
@@ -870,6 +982,20 @@
architectures, and don't require runtime relocation on relocatable
kernels.
+# Select if the architecture has support for applying RELR relocations.
+config ARCH_HAS_RELR
+ bool
+
+config RELR
+ bool "Use RELR relocation packing"
+ depends on ARCH_HAS_RELR && TOOLS_SUPPORT_RELR
+ default y
+ help
+ Store the kernel's dynamic relocations in the RELR relocation packing
+ format. Requires a compatible linker (LLD supports this feature), as
+ well as compatible NM and OBJCOPY utilities (llvm-nm and llvm-objcopy
+ are compatible).
+
source "kernel/gcov/Kconfig"
source "scripts/gcc-plugins/Kconfig"
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 1877da8..4af7afc 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -69,7 +69,7 @@
select HAVE_EXIT_THREAD
select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
- select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
+ select HAVE_FUNCTION_TRACER if (!XIP_KERNEL) && (CC_IS_GCC || CLANG_VERSION >= 100000)
select HAVE_GCC_PLUGINS
select HAVE_GENERIC_DMA_COHERENT
select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index d1516f8..62c789d 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -36,7 +36,10 @@
endif
ifeq ($(CONFIG_FRAME_POINTER),y)
-KBUILD_CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
+KBUILD_CFLAGS +=-fno-omit-frame-pointer
+ifeq ($(CONFIG_CC_IS_GCC),y)
+KBUILD_CFLAGS += -mapcs -mno-sched-prolog
+endif
endif
ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
@@ -112,6 +115,10 @@
CFLAGS_ABI +=-funwind-tables
endif
+ifeq ($(CONFIG_CC_IS_CLANG),y)
+CFLAGS_ABI += -meabi gnu
+endif
+
# Accept old syntax despite ".syntax unified"
AFLAGS_NOWARN :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
diff --git a/arch/arm/OWNERS b/arch/arm/OWNERS
new file mode 100644
index 0000000..1e390c7
--- /dev/null
+++ b/arch/arm/OWNERS
@@ -0,0 +1,2 @@
+# include OWNERS from the authoritative android-mainline branch
+include kernel/common:android-mainline:/arch/arm/OWNERS
diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index 7f1fe4a..0c0781a 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -48,7 +48,6 @@
timer {
compatible = "arm,armv7-timer";
- status = "disabled"; /* See ARM architected timer wrap erratum i940 */
interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
@@ -911,8 +910,6 @@
reg = <0x48032000 0x80>;
interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "timer2";
- clock-names = "fck";
- clocks = <&l4per_clkctrl DRA7_TIMER2_CLKCTRL 24>;
};
timer3: timer@48034000 {
@@ -920,10 +917,6 @@
reg = <0x48034000 0x80>;
interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "timer3";
- clock-names = "fck";
- clocks = <&l4per_clkctrl DRA7_TIMER3_CLKCTRL 24>;
- assigned-clocks = <&l4per_clkctrl DRA7_TIMER3_CLKCTRL 24>;
- assigned-clock-parents = <&timer_sys_clk_div>;
};
timer4: timer@48036000 {
@@ -931,10 +924,6 @@
reg = <0x48036000 0x80>;
interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "timer4";
- clock-names = "fck";
- clocks = <&l4per_clkctrl DRA7_TIMER4_CLKCTRL 24>;
- assigned-clocks = <&l4per_clkctrl DRA7_TIMER4_CLKCTRL 24>;
- assigned-clock-parents = <&timer_sys_clk_div>;
};
timer5: timer@48820000 {
diff --git a/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts b/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts
index ac6b90e..75663ed 100644
--- a/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts
+++ b/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts
@@ -42,6 +42,7 @@
cci-control-port = <&cci_control1>;
cpu-idle-states = <&CLUSTER_SLEEP_BIG>;
capacity-dmips-mhz = <1024>;
+ dynamic-power-coefficient = <990>;
};
cpu1: cpu@1 {
@@ -51,6 +52,7 @@
cci-control-port = <&cci_control1>;
cpu-idle-states = <&CLUSTER_SLEEP_BIG>;
capacity-dmips-mhz = <1024>;
+ dynamic-power-coefficient = <990>;
};
cpu2: cpu@2 {
@@ -60,6 +62,7 @@
cci-control-port = <&cci_control2>;
cpu-idle-states = <&CLUSTER_SLEEP_LITTLE>;
capacity-dmips-mhz = <516>;
+ dynamic-power-coefficient = <133>;
};
cpu3: cpu@3 {
@@ -69,6 +72,7 @@
cci-control-port = <&cci_control2>;
cpu-idle-states = <&CLUSTER_SLEEP_LITTLE>;
capacity-dmips-mhz = <516>;
+ dynamic-power-coefficient = <133>;
};
cpu4: cpu@4 {
@@ -78,6 +82,7 @@
cci-control-port = <&cci_control2>;
cpu-idle-states = <&CLUSTER_SLEEP_LITTLE>;
capacity-dmips-mhz = <516>;
+ dynamic-power-coefficient = <133>;
};
idle-states {
diff --git a/arch/arm/configs/bcm2835_defconfig b/arch/arm/configs/bcm2835_defconfig
index e9bc889..0f6d1fe 100644
--- a/arch/arm/configs/bcm2835_defconfig
+++ b/arch/arm/configs/bcm2835_defconfig
@@ -167,6 +167,7 @@
CONFIG_STACK_TRACER=y
CONFIG_FUNCTION_PROFILER=y
CONFIG_TEST_KSTRTOX=y
+CONFIG_DEBUG_FS=y
CONFIG_KGDB=y
CONFIG_KGDB_KDB=y
CONFIG_STRICT_DEVMEM=y
diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index fc33444..2721877 100644
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -2,6 +2,12 @@
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_CGROUPS=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_FAIR_GROUP_SCHED=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CPUSETS=y
+CONFIG_PROC_PID_CPUSET=y
+CONFIG_SCHED_AUTOGROUP=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_EMBEDDED=y
CONFIG_PERF_EVENTS=y
@@ -116,6 +122,7 @@
CONFIG_PCI_ENDPOINT_CONFIGFS=y
CONFIG_PCI_EPF_TEST=m
CONFIG_SMP=y
+CONFIG_SCHED_MC=y
CONFIG_NR_CPUS=16
CONFIG_SECCOMP=y
CONFIG_ARM_APPENDED_DTB=y
@@ -124,10 +131,10 @@
CONFIG_EFI=y
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_STAT=y
-CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
-CONFIG_CPU_FREQ_GOV_POWERSAVE=m
-CONFIG_CPU_FREQ_GOV_USERSPACE=m
-CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m
+CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL=y
+CONFIG_CPU_FREQ_GOV_POWERSAVE=y
+CONFIG_CPU_FREQ_GOV_USERSPACE=y
+CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y
CONFIG_CPUFREQ_DT=y
CONFIG_ARM_IMX6Q_CPUFREQ=y
@@ -137,6 +144,7 @@
CONFIG_ARM_ZYNQ_CPUIDLE=y
CONFIG_ARM_EXYNOS_CPUIDLE=y
CONFIG_KERNEL_MODE_NEON=y
+CONFIG_ENERGY_MODEL=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
diff --git a/arch/arm/configs/socfpga_defconfig b/arch/arm/configs/socfpga_defconfig
index 371fca4..e5e4531 100644
--- a/arch/arm/configs/socfpga_defconfig
+++ b/arch/arm/configs/socfpga_defconfig
@@ -159,6 +159,7 @@
CONFIG_PRINTK_TIME=y
CONFIG_DEBUG_INFO=y
CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_FS=y
CONFIG_DETECT_HUNG_TASK=y
# CONFIG_SCHED_DEBUG is not set
CONFIG_FUNCTION_TRACER=y
diff --git a/arch/arm/crypto/.gitignore b/arch/arm/crypto/.gitignore
index 31e1f53..a3c7ad5 100644
--- a/arch/arm/crypto/.gitignore
+++ b/arch/arm/crypto/.gitignore
@@ -1,3 +1,4 @@
aesbs-core.S
sha256-core.S
sha512-core.S
+poly1305-core.S
diff --git a/arch/arm/crypto/Kconfig b/arch/arm/crypto/Kconfig
index b8e69fe..b98056e 100644
--- a/arch/arm/crypto/Kconfig
+++ b/arch/arm/crypto/Kconfig
@@ -69,6 +69,15 @@
help
Use optimized AES assembler routines for ARM platforms.
+ On ARM processors without the Crypto Extensions, this is the
+ fastest AES implementation for single blocks. For multiple
+ blocks, the NEON bit-sliced implementation is usually faster.
+
+ This implementation may be vulnerable to cache timing attacks,
+ since it uses lookup tables. However, as countermeasures it
+ disables IRQs and preloads the tables; it is hoped this makes
+ such attacks very difficult.
+
config CRYPTO_AES_ARM_BS
tristate "Bit sliced AES using NEON instructions"
depends on KERNEL_MODE_NEON
@@ -116,9 +125,24 @@
select CRYPTO_HASH
config CRYPTO_CHACHA20_NEON
- tristate "NEON accelerated ChaCha20 symmetric cipher"
- depends on KERNEL_MODE_NEON
+ tristate "NEON and scalar accelerated ChaCha stream cipher algorithms"
select CRYPTO_BLKCIPHER
- select CRYPTO_CHACHA20
+ select CRYPTO_ARCH_HAVE_LIB_CHACHA
+
+config CRYPTO_POLY1305_ARM
+ tristate "Accelerated scalar and SIMD Poly1305 hash implementations"
+ select CRYPTO_HASH
+ select CRYPTO_ARCH_HAVE_LIB_POLY1305
+
+config CRYPTO_NHPOLY1305_NEON
+ tristate "NEON accelerated NHPoly1305 hash function (for Adiantum)"
+ depends on KERNEL_MODE_NEON
+ select CRYPTO_NHPOLY1305
+
+config CRYPTO_CURVE25519_NEON
+ tristate "NEON accelerated Curve25519 scalar multiplication library"
+ depends on KERNEL_MODE_NEON
+ select CRYPTO_LIB_CURVE25519_GENERIC
+ select CRYPTO_ARCH_HAVE_LIB_CURVE25519
endif
diff --git a/arch/arm/crypto/Makefile b/arch/arm/crypto/Makefile
index bd5bcee..055b18c 100644
--- a/arch/arm/crypto/Makefile
+++ b/arch/arm/crypto/Makefile
@@ -9,7 +9,10 @@
obj-$(CONFIG_CRYPTO_SHA1_ARM_NEON) += sha1-arm-neon.o
obj-$(CONFIG_CRYPTO_SHA256_ARM) += sha256-arm.o
obj-$(CONFIG_CRYPTO_SHA512_ARM) += sha512-arm.o
-obj-$(CONFIG_CRYPTO_CHACHA20_NEON) += chacha20-neon.o
+obj-$(CONFIG_CRYPTO_CHACHA20_NEON) += chacha-neon.o
+obj-$(CONFIG_CRYPTO_POLY1305_ARM) += poly1305-arm.o
+obj-$(CONFIG_CRYPTO_NHPOLY1305_NEON) += nhpoly1305-neon.o
+obj-$(CONFIG_CRYPTO_CURVE25519_NEON) += curve25519-neon.o
ce-obj-$(CONFIG_CRYPTO_AES_ARM_CE) += aes-arm-ce.o
ce-obj-$(CONFIG_CRYPTO_SHA1_ARM_CE) += sha1-arm-ce.o
@@ -52,12 +55,19 @@
ghash-arm-ce-y := ghash-ce-core.o ghash-ce-glue.o
crct10dif-arm-ce-y := crct10dif-ce-core.o crct10dif-ce-glue.o
crc32-arm-ce-y:= crc32-ce-core.o crc32-ce-glue.o
-chacha20-neon-y := chacha20-neon-core.o chacha20-neon-glue.o
+chacha-neon-y := chacha-scalar-core.o chacha-glue.o
+chacha-neon-$(CONFIG_KERNEL_MODE_NEON) += chacha-neon-core.o
+poly1305-arm-y := poly1305-core.o poly1305-glue.o
+nhpoly1305-neon-y := nh-neon-core.o nhpoly1305-neon-glue.o
+curve25519-neon-y := curve25519-core.o curve25519-glue.o
ifdef REGENERATE_ARM_CRYPTO
quiet_cmd_perl = PERL $@
cmd_perl = $(PERL) $(<) > $(@)
+$(src)/poly1305-core.S_shipped: $(src)/poly1305-armv4.pl
+ $(call cmd,perl)
+
$(src)/sha256-core.S_shipped: $(src)/sha256-armv4.pl
$(call cmd,perl)
@@ -65,4 +75,9 @@
$(call cmd,perl)
endif
-targets += sha256-core.S sha512-core.S
+targets += poly1305-core.S sha256-core.S sha512-core.S
+
+# massage the perlasm code a bit so we only get the NEON routine if we need it
+poly1305-aflags-$(CONFIG_CPU_V7) := -U__LINUX_ARM_ARCH__ -D__LINUX_ARM_ARCH__=5
+poly1305-aflags-$(CONFIG_KERNEL_MODE_NEON) := -U__LINUX_ARM_ARCH__ -D__LINUX_ARM_ARCH__=7
+AFLAGS_poly1305-core.o += $(poly1305-aflags-y)
diff --git a/arch/arm/crypto/aes-cipher-core.S b/arch/arm/crypto/aes-cipher-core.S
index 184d6c2..f2d67c0 100644
--- a/arch/arm/crypto/aes-cipher-core.S
+++ b/arch/arm/crypto/aes-cipher-core.S
@@ -10,6 +10,7 @@
*/
#include <linux/linkage.h>
+#include <asm/assembler.h>
#include <asm/cache.h>
.text
@@ -41,7 +42,7 @@
.endif
.endm
- .macro __hround, out0, out1, in0, in1, in2, in3, t3, t4, enc, sz, op
+ .macro __hround, out0, out1, in0, in1, in2, in3, t3, t4, enc, sz, op, oldcpsr
__select \out0, \in0, 0
__select t0, \in1, 1
__load \out0, \out0, 0, \sz, \op
@@ -73,6 +74,14 @@
__load t0, t0, 3, \sz, \op
__load \t4, \t4, 3, \sz, \op
+ .ifnb \oldcpsr
+ /*
+ * This is the final round and we're done with all data-dependent table
+ * lookups, so we can safely re-enable interrupts.
+ */
+ restore_irqs \oldcpsr
+ .endif
+
eor \out1, \out1, t1, ror #24
eor \out0, \out0, t2, ror #16
ldm rk!, {t1, t2}
@@ -83,14 +92,14 @@
eor \out1, \out1, t2
.endm
- .macro fround, out0, out1, out2, out3, in0, in1, in2, in3, sz=2, op
+ .macro fround, out0, out1, out2, out3, in0, in1, in2, in3, sz=2, op, oldcpsr
__hround \out0, \out1, \in0, \in1, \in2, \in3, \out2, \out3, 1, \sz, \op
- __hround \out2, \out3, \in2, \in3, \in0, \in1, \in1, \in2, 1, \sz, \op
+ __hround \out2, \out3, \in2, \in3, \in0, \in1, \in1, \in2, 1, \sz, \op, \oldcpsr
.endm
- .macro iround, out0, out1, out2, out3, in0, in1, in2, in3, sz=2, op
+ .macro iround, out0, out1, out2, out3, in0, in1, in2, in3, sz=2, op, oldcpsr
__hround \out0, \out1, \in0, \in3, \in2, \in1, \out2, \out3, 0, \sz, \op
- __hround \out2, \out3, \in2, \in1, \in0, \in3, \in1, \in0, 0, \sz, \op
+ __hround \out2, \out3, \in2, \in1, \in0, \in3, \in1, \in0, 0, \sz, \op, \oldcpsr
.endm
.macro __rev, out, in
@@ -118,13 +127,14 @@
.macro do_crypt, round, ttab, ltab, bsz
push {r3-r11, lr}
+ // Load keys first, to reduce latency in case they're not cached yet.
+ ldm rk!, {r8-r11}
+
ldr r4, [in]
ldr r5, [in, #4]
ldr r6, [in, #8]
ldr r7, [in, #12]
- ldm rk!, {r8-r11}
-
#ifdef CONFIG_CPU_BIG_ENDIAN
__rev r4, r4
__rev r5, r5
@@ -138,6 +148,25 @@
eor r7, r7, r11
__adrl ttab, \ttab
+ /*
+ * Disable interrupts and prefetch the 1024-byte 'ft' or 'it' table into
+ * L1 cache, assuming cacheline size >= 32. This is a hardening measure
+ * intended to make cache-timing attacks more difficult. They may not
+ * be fully prevented, however; see the paper
+ * https://cr.yp.to/antiforgery/cachetiming-20050414.pdf
+ * ("Cache-timing attacks on AES") for a discussion of the many
+ * difficulties involved in writing truly constant-time AES software.
+ */
+ save_and_disable_irqs t0
+ .set i, 0
+ .rept 1024 / 128
+ ldr r8, [ttab, #i + 0]
+ ldr r9, [ttab, #i + 32]
+ ldr r10, [ttab, #i + 64]
+ ldr r11, [ttab, #i + 96]
+ .set i, i + 128
+ .endr
+ push {t0} // oldcpsr
tst rounds, #2
bne 1f
@@ -151,8 +180,21 @@
\round r4, r5, r6, r7, r8, r9, r10, r11
b 0b
-2: __adrl ttab, \ltab
- \round r4, r5, r6, r7, r8, r9, r10, r11, \bsz, b
+2: .ifb \ltab
+ add ttab, ttab, #1
+ .else
+ __adrl ttab, \ltab
+ // Prefetch inverse S-box for final round; see explanation above
+ .set i, 0
+ .rept 256 / 64
+ ldr t0, [ttab, #i + 0]
+ ldr t1, [ttab, #i + 32]
+ .set i, i + 64
+ .endr
+ .endif
+
+ pop {rounds} // oldcpsr
+ \round r4, r5, r6, r7, r8, r9, r10, r11, \bsz, b, rounds
#ifdef CONFIG_CPU_BIG_ENDIAN
__rev r4, r4
@@ -175,7 +217,7 @@
.endm
ENTRY(__aes_arm_encrypt)
- do_crypt fround, crypto_ft_tab, crypto_ft_tab + 1, 2
+ do_crypt fround, crypto_ft_tab,, 2
ENDPROC(__aes_arm_encrypt)
.align 5
diff --git a/arch/arm/crypto/chacha-glue.c b/arch/arm/crypto/chacha-glue.c
new file mode 100644
index 0000000..f8eee0f
--- /dev/null
+++ b/arch/arm/crypto/chacha-glue.c
@@ -0,0 +1,356 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * ARM NEON accelerated ChaCha and XChaCha stream ciphers,
+ * including ChaCha20 (RFC7539)
+ *
+ * Copyright (C) 2016-2019 Linaro, Ltd. <ard.biesheuvel@linaro.org>
+ * Copyright (C) 2015 Martin Willi
+ */
+
+#include <crypto/algapi.h>
+#include <crypto/internal/chacha.h>
+#include <crypto/internal/skcipher.h>
+#include <linux/jump_label.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include <asm/cputype.h>
+#include <asm/hwcap.h>
+#include <asm/neon.h>
+#include <asm/simd.h>
+
+asmlinkage void chacha_block_xor_neon(const u32 *state, u8 *dst, const u8 *src,
+ int nrounds);
+asmlinkage void chacha_4block_xor_neon(const u32 *state, u8 *dst, const u8 *src,
+ int nrounds);
+asmlinkage void hchacha_block_arm(const u32 *state, u32 *out, int nrounds);
+asmlinkage void hchacha_block_neon(const u32 *state, u32 *out, int nrounds);
+
+asmlinkage void chacha_doarm(u8 *dst, const u8 *src, unsigned int bytes,
+ const u32 *state, int nrounds);
+
+static __ro_after_init DEFINE_STATIC_KEY_FALSE(use_neon);
+
+static inline bool neon_usable(void)
+{
+ return static_branch_likely(&use_neon) && may_use_simd();
+}
+
+static void chacha_doneon(u32 *state, u8 *dst, const u8 *src,
+ unsigned int bytes, int nrounds)
+{
+ u8 buf[CHACHA_BLOCK_SIZE];
+
+ while (bytes >= CHACHA_BLOCK_SIZE * 4) {
+ chacha_4block_xor_neon(state, dst, src, nrounds);
+ bytes -= CHACHA_BLOCK_SIZE * 4;
+ src += CHACHA_BLOCK_SIZE * 4;
+ dst += CHACHA_BLOCK_SIZE * 4;
+ state[12] += 4;
+ }
+ while (bytes >= CHACHA_BLOCK_SIZE) {
+ chacha_block_xor_neon(state, dst, src, nrounds);
+ bytes -= CHACHA_BLOCK_SIZE;
+ src += CHACHA_BLOCK_SIZE;
+ dst += CHACHA_BLOCK_SIZE;
+ state[12]++;
+ }
+ if (bytes) {
+ memcpy(buf, src, bytes);
+ chacha_block_xor_neon(state, buf, buf, nrounds);
+ memcpy(dst, buf, bytes);
+ }
+}
+
+void hchacha_block_arch(const u32 *state, u32 *stream, int nrounds)
+{
+ if (!IS_ENABLED(CONFIG_KERNEL_MODE_NEON) || !neon_usable()) {
+ hchacha_block_arm(state, stream, nrounds);
+ } else {
+ kernel_neon_begin();
+ hchacha_block_neon(state, stream, nrounds);
+ kernel_neon_end();
+ }
+}
+EXPORT_SYMBOL(hchacha_block_arch);
+
+void chacha_init_arch(u32 *state, const u32 *key, const u8 *iv)
+{
+ chacha_init_generic(state, key, iv);
+}
+EXPORT_SYMBOL(chacha_init_arch);
+
+void chacha_crypt_arch(u32 *state, u8 *dst, const u8 *src, unsigned int bytes,
+ int nrounds)
+{
+ if (!IS_ENABLED(CONFIG_KERNEL_MODE_NEON) || !neon_usable() ||
+ bytes <= CHACHA_BLOCK_SIZE) {
+ chacha_doarm(dst, src, bytes, state, nrounds);
+ state[12] += DIV_ROUND_UP(bytes, CHACHA_BLOCK_SIZE);
+ return;
+ }
+
+ do {
+ unsigned int todo = min_t(unsigned int, bytes, SZ_4K);
+
+ kernel_neon_begin();
+ chacha_doneon(state, dst, src, todo, nrounds);
+ kernel_neon_end();
+
+ bytes -= todo;
+ src += todo;
+ dst += todo;
+ } while (bytes);
+}
+EXPORT_SYMBOL(chacha_crypt_arch);
+
+static int chacha_stream_xor(struct skcipher_request *req,
+ const struct chacha_ctx *ctx, const u8 *iv,
+ bool neon)
+{
+ struct skcipher_walk walk;
+ u32 state[16];
+ int err;
+
+ err = skcipher_walk_virt(&walk, req, false);
+
+ chacha_init_generic(state, ctx->key, iv);
+
+ while (walk.nbytes > 0) {
+ unsigned int nbytes = walk.nbytes;
+
+ if (nbytes < walk.total)
+ nbytes = round_down(nbytes, walk.stride);
+
+ if (!IS_ENABLED(CONFIG_KERNEL_MODE_NEON) || !neon) {
+ chacha_doarm(walk.dst.virt.addr, walk.src.virt.addr,
+ nbytes, state, ctx->nrounds);
+ state[12] += DIV_ROUND_UP(nbytes, CHACHA_BLOCK_SIZE);
+ } else {
+ kernel_neon_begin();
+ chacha_doneon(state, walk.dst.virt.addr,
+ walk.src.virt.addr, nbytes, ctx->nrounds);
+ kernel_neon_end();
+ }
+ err = skcipher_walk_done(&walk, walk.nbytes - nbytes);
+ }
+
+ return err;
+}
+
+static int do_chacha(struct skcipher_request *req, bool neon)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+ return chacha_stream_xor(req, ctx, req->iv, neon);
+}
+
+static int chacha_arm(struct skcipher_request *req)
+{
+ return do_chacha(req, false);
+}
+
+static int chacha_neon(struct skcipher_request *req)
+{
+ return do_chacha(req, neon_usable());
+}
+
+static int do_xchacha(struct skcipher_request *req, bool neon)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct chacha_ctx subctx;
+ u32 state[16];
+ u8 real_iv[16];
+
+ chacha_init_generic(state, ctx->key, req->iv);
+
+ if (!IS_ENABLED(CONFIG_KERNEL_MODE_NEON) || !neon) {
+ hchacha_block_arm(state, subctx.key, ctx->nrounds);
+ } else {
+ kernel_neon_begin();
+ hchacha_block_neon(state, subctx.key, ctx->nrounds);
+ kernel_neon_end();
+ }
+ subctx.nrounds = ctx->nrounds;
+
+ memcpy(&real_iv[0], req->iv + 24, 8);
+ memcpy(&real_iv[8], req->iv + 16, 8);
+ return chacha_stream_xor(req, &subctx, real_iv, neon);
+}
+
+static int xchacha_arm(struct skcipher_request *req)
+{
+ return do_xchacha(req, false);
+}
+
+static int xchacha_neon(struct skcipher_request *req)
+{
+ return do_xchacha(req, neon_usable());
+}
+
+static struct skcipher_alg arm_algs[] = {
+ {
+ .base.cra_name = "chacha20",
+ .base.cra_driver_name = "chacha20-arm",
+ .base.cra_priority = 200,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
+ .base.cra_module = THIS_MODULE,
+
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = CHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
+ .setkey = chacha20_setkey,
+ .encrypt = chacha_arm,
+ .decrypt = chacha_arm,
+ }, {
+ .base.cra_name = "xchacha20",
+ .base.cra_driver_name = "xchacha20-arm",
+ .base.cra_priority = 200,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
+ .base.cra_module = THIS_MODULE,
+
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = XCHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
+ .setkey = chacha20_setkey,
+ .encrypt = xchacha_arm,
+ .decrypt = xchacha_arm,
+ }, {
+ .base.cra_name = "xchacha12",
+ .base.cra_driver_name = "xchacha12-arm",
+ .base.cra_priority = 200,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
+ .base.cra_module = THIS_MODULE,
+
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = XCHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
+ .setkey = chacha12_setkey,
+ .encrypt = xchacha_arm,
+ .decrypt = xchacha_arm,
+ },
+};
+
+static struct skcipher_alg neon_algs[] = {
+ {
+ .base.cra_name = "chacha20",
+ .base.cra_driver_name = "chacha20-neon",
+ .base.cra_priority = 300,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
+ .base.cra_module = THIS_MODULE,
+
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = CHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
+ .walksize = 4 * CHACHA_BLOCK_SIZE,
+ .setkey = chacha20_setkey,
+ .encrypt = chacha_neon,
+ .decrypt = chacha_neon,
+ }, {
+ .base.cra_name = "xchacha20",
+ .base.cra_driver_name = "xchacha20-neon",
+ .base.cra_priority = 300,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
+ .base.cra_module = THIS_MODULE,
+
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = XCHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
+ .walksize = 4 * CHACHA_BLOCK_SIZE,
+ .setkey = chacha20_setkey,
+ .encrypt = xchacha_neon,
+ .decrypt = xchacha_neon,
+ }, {
+ .base.cra_name = "xchacha12",
+ .base.cra_driver_name = "xchacha12-neon",
+ .base.cra_priority = 300,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
+ .base.cra_module = THIS_MODULE,
+
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = XCHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
+ .walksize = 4 * CHACHA_BLOCK_SIZE,
+ .setkey = chacha12_setkey,
+ .encrypt = xchacha_neon,
+ .decrypt = xchacha_neon,
+ }
+};
+
+static int __init chacha_simd_mod_init(void)
+{
+ int err = 0;
+
+ if (IS_REACHABLE(CONFIG_CRYPTO_BLKCIPHER)) {
+ err = crypto_register_skciphers(arm_algs, ARRAY_SIZE(arm_algs));
+ if (err)
+ return err;
+ }
+
+ if (IS_ENABLED(CONFIG_KERNEL_MODE_NEON) && (elf_hwcap & HWCAP_NEON)) {
+ int i;
+
+ switch (read_cpuid_part()) {
+ case ARM_CPU_PART_CORTEX_A7:
+ case ARM_CPU_PART_CORTEX_A5:
+ /*
+ * The Cortex-A7 and Cortex-A5 do not perform well with
+ * the NEON implementation but do incredibly with the
+ * scalar one and use less power.
+ */
+ for (i = 0; i < ARRAY_SIZE(neon_algs); i++)
+ neon_algs[i].base.cra_priority = 0;
+ break;
+ default:
+ static_branch_enable(&use_neon);
+ }
+
+ if (IS_REACHABLE(CONFIG_CRYPTO_BLKCIPHER)) {
+ err = crypto_register_skciphers(neon_algs, ARRAY_SIZE(neon_algs));
+ if (err)
+ crypto_unregister_skciphers(arm_algs, ARRAY_SIZE(arm_algs));
+ }
+ }
+ return err;
+}
+
+static void __exit chacha_simd_mod_fini(void)
+{
+ if (IS_REACHABLE(CONFIG_CRYPTO_BLKCIPHER)) {
+ crypto_unregister_skciphers(arm_algs, ARRAY_SIZE(arm_algs));
+ if (IS_ENABLED(CONFIG_KERNEL_MODE_NEON) && (elf_hwcap & HWCAP_NEON))
+ crypto_unregister_skciphers(neon_algs, ARRAY_SIZE(neon_algs));
+ }
+}
+
+module_init(chacha_simd_mod_init);
+module_exit(chacha_simd_mod_fini);
+
+MODULE_DESCRIPTION("ChaCha and XChaCha stream ciphers (scalar and NEON accelerated)");
+MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS_CRYPTO("chacha20");
+MODULE_ALIAS_CRYPTO("chacha20-arm");
+MODULE_ALIAS_CRYPTO("xchacha20");
+MODULE_ALIAS_CRYPTO("xchacha20-arm");
+MODULE_ALIAS_CRYPTO("xchacha12");
+MODULE_ALIAS_CRYPTO("xchacha12-arm");
+#ifdef CONFIG_KERNEL_MODE_NEON
+MODULE_ALIAS_CRYPTO("chacha20-neon");
+MODULE_ALIAS_CRYPTO("xchacha20-neon");
+MODULE_ALIAS_CRYPTO("xchacha12-neon");
+#endif
diff --git a/arch/arm/crypto/chacha-neon-core.S b/arch/arm/crypto/chacha-neon-core.S
new file mode 100644
index 0000000..eb22926
--- /dev/null
+++ b/arch/arm/crypto/chacha-neon-core.S
@@ -0,0 +1,560 @@
+/*
+ * ChaCha/XChaCha NEON helper functions
+ *
+ * Copyright (C) 2016 Linaro, Ltd. <ard.biesheuvel@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Based on:
+ * ChaCha20 256-bit cipher algorithm, RFC7539, x64 SSE3 functions
+ *
+ * Copyright (C) 2015 Martin Willi
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+ /*
+ * NEON doesn't have a rotate instruction. The alternatives are, more or less:
+ *
+ * (a) vshl.u32 + vsri.u32 (needs temporary register)
+ * (b) vshl.u32 + vshr.u32 + vorr (needs temporary register)
+ * (c) vrev32.16 (16-bit rotations only)
+ * (d) vtbl.8 + vtbl.8 (multiple of 8 bits rotations only,
+ * needs index vector)
+ *
+ * ChaCha has 16, 12, 8, and 7-bit rotations. For the 12 and 7-bit rotations,
+ * the only choices are (a) and (b). We use (a) since it takes two-thirds the
+ * cycles of (b) on both Cortex-A7 and Cortex-A53.
+ *
+ * For the 16-bit rotation, we use vrev32.16 since it's consistently fastest
+ * and doesn't need a temporary register.
+ *
+ * For the 8-bit rotation, we use vtbl.8 + vtbl.8. On Cortex-A7, this sequence
+ * is twice as fast as (a), even when doing (a) on multiple registers
+ * simultaneously to eliminate the stall between vshl and vsri. Also, it
+ * parallelizes better when temporary registers are scarce.
+ *
+ * A disadvantage is that on Cortex-A53, the vtbl sequence is the same speed as
+ * (a), so the need to load the rotation table actually makes the vtbl method
+ * slightly slower overall on that CPU (~1.3% slower ChaCha20). Still, it
+ * seems to be a good compromise to get a more significant speed boost on some
+ * CPUs, e.g. ~4.8% faster ChaCha20 on Cortex-A7.
+ */
+
+#include <linux/linkage.h>
+
+ .text
+ .fpu neon
+ .align 5
+
+/*
+ * chacha_permute - permute one block
+ *
+ * Permute one 64-byte block where the state matrix is stored in the four NEON
+ * registers q0-q3. It performs matrix operations on four words in parallel,
+ * but requires shuffling to rearrange the words after each round.
+ *
+ * The round count is given in r3.
+ *
+ * Clobbers: r3, ip, q4-q5
+ */
+chacha_permute:
+
+ adr ip, .Lrol8_table
+ vld1.8 {d10}, [ip, :64]
+
+.Ldoubleround:
+ // x0 += x1, x3 = rotl32(x3 ^ x0, 16)
+ vadd.i32 q0, q0, q1
+ veor q3, q3, q0
+ vrev32.16 q3, q3
+
+ // x2 += x3, x1 = rotl32(x1 ^ x2, 12)
+ vadd.i32 q2, q2, q3
+ veor q4, q1, q2
+ vshl.u32 q1, q4, #12
+ vsri.u32 q1, q4, #20
+
+ // x0 += x1, x3 = rotl32(x3 ^ x0, 8)
+ vadd.i32 q0, q0, q1
+ veor q3, q3, q0
+ vtbl.8 d6, {d6}, d10
+ vtbl.8 d7, {d7}, d10
+
+ // x2 += x3, x1 = rotl32(x1 ^ x2, 7)
+ vadd.i32 q2, q2, q3
+ veor q4, q1, q2
+ vshl.u32 q1, q4, #7
+ vsri.u32 q1, q4, #25
+
+ // x1 = shuffle32(x1, MASK(0, 3, 2, 1))
+ vext.8 q1, q1, q1, #4
+ // x2 = shuffle32(x2, MASK(1, 0, 3, 2))
+ vext.8 q2, q2, q2, #8
+ // x3 = shuffle32(x3, MASK(2, 1, 0, 3))
+ vext.8 q3, q3, q3, #12
+
+ // x0 += x1, x3 = rotl32(x3 ^ x0, 16)
+ vadd.i32 q0, q0, q1
+ veor q3, q3, q0
+ vrev32.16 q3, q3
+
+ // x2 += x3, x1 = rotl32(x1 ^ x2, 12)
+ vadd.i32 q2, q2, q3
+ veor q4, q1, q2
+ vshl.u32 q1, q4, #12
+ vsri.u32 q1, q4, #20
+
+ // x0 += x1, x3 = rotl32(x3 ^ x0, 8)
+ vadd.i32 q0, q0, q1
+ veor q3, q3, q0
+ vtbl.8 d6, {d6}, d10
+ vtbl.8 d7, {d7}, d10
+
+ // x2 += x3, x1 = rotl32(x1 ^ x2, 7)
+ vadd.i32 q2, q2, q3
+ veor q4, q1, q2
+ vshl.u32 q1, q4, #7
+ vsri.u32 q1, q4, #25
+
+ // x1 = shuffle32(x1, MASK(2, 1, 0, 3))
+ vext.8 q1, q1, q1, #12
+ // x2 = shuffle32(x2, MASK(1, 0, 3, 2))
+ vext.8 q2, q2, q2, #8
+ // x3 = shuffle32(x3, MASK(0, 3, 2, 1))
+ vext.8 q3, q3, q3, #4
+
+ subs r3, r3, #2
+ bne .Ldoubleround
+
+ bx lr
+ENDPROC(chacha_permute)
+
+ENTRY(chacha_block_xor_neon)
+ // r0: Input state matrix, s
+ // r1: 1 data block output, o
+ // r2: 1 data block input, i
+ // r3: nrounds
+ push {lr}
+
+ // x0..3 = s0..3
+ add ip, r0, #0x20
+ vld1.32 {q0-q1}, [r0]
+ vld1.32 {q2-q3}, [ip]
+
+ vmov q8, q0
+ vmov q9, q1
+ vmov q10, q2
+ vmov q11, q3
+
+ bl chacha_permute
+
+ add ip, r2, #0x20
+ vld1.8 {q4-q5}, [r2]
+ vld1.8 {q6-q7}, [ip]
+
+ // o0 = i0 ^ (x0 + s0)
+ vadd.i32 q0, q0, q8
+ veor q0, q0, q4
+
+ // o1 = i1 ^ (x1 + s1)
+ vadd.i32 q1, q1, q9
+ veor q1, q1, q5
+
+ // o2 = i2 ^ (x2 + s2)
+ vadd.i32 q2, q2, q10
+ veor q2, q2, q6
+
+ // o3 = i3 ^ (x3 + s3)
+ vadd.i32 q3, q3, q11
+ veor q3, q3, q7
+
+ add ip, r1, #0x20
+ vst1.8 {q0-q1}, [r1]
+ vst1.8 {q2-q3}, [ip]
+
+ pop {pc}
+ENDPROC(chacha_block_xor_neon)
+
+ENTRY(hchacha_block_neon)
+ // r0: Input state matrix, s
+ // r1: output (8 32-bit words)
+ // r2: nrounds
+ push {lr}
+
+ vld1.32 {q0-q1}, [r0]!
+ vld1.32 {q2-q3}, [r0]
+
+ mov r3, r2
+ bl chacha_permute
+
+ vst1.32 {q0}, [r1]!
+ vst1.32 {q3}, [r1]
+
+ pop {pc}
+ENDPROC(hchacha_block_neon)
+
+ .align 4
+.Lctrinc: .word 0, 1, 2, 3
+.Lrol8_table: .byte 3, 0, 1, 2, 7, 4, 5, 6
+
+ .align 5
+ENTRY(chacha_4block_xor_neon)
+ push {r4-r5}
+ mov r4, sp // preserve the stack pointer
+ sub ip, sp, #0x20 // allocate a 32 byte buffer
+ bic ip, ip, #0x1f // aligned to 32 bytes
+ mov sp, ip
+
+ // r0: Input state matrix, s
+ // r1: 4 data blocks output, o
+ // r2: 4 data blocks input, i
+ // r3: nrounds
+
+ //
+ // This function encrypts four consecutive ChaCha blocks by loading
+ // the state matrix in NEON registers four times. The algorithm performs
+ // each operation on the corresponding word of each state matrix, hence
+ // requires no word shuffling. The words are re-interleaved before the
+ // final addition of the original state and the XORing step.
+ //
+
+ // x0..15[0-3] = s0..15[0-3]
+ add ip, r0, #0x20
+ vld1.32 {q0-q1}, [r0]
+ vld1.32 {q2-q3}, [ip]
+
+ adr r5, .Lctrinc
+ vdup.32 q15, d7[1]
+ vdup.32 q14, d7[0]
+ vld1.32 {q4}, [r5, :128]
+ vdup.32 q13, d6[1]
+ vdup.32 q12, d6[0]
+ vdup.32 q11, d5[1]
+ vdup.32 q10, d5[0]
+ vadd.u32 q12, q12, q4 // x12 += counter values 0-3
+ vdup.32 q9, d4[1]
+ vdup.32 q8, d4[0]
+ vdup.32 q7, d3[1]
+ vdup.32 q6, d3[0]
+ vdup.32 q5, d2[1]
+ vdup.32 q4, d2[0]
+ vdup.32 q3, d1[1]
+ vdup.32 q2, d1[0]
+ vdup.32 q1, d0[1]
+ vdup.32 q0, d0[0]
+
+ adr ip, .Lrol8_table
+ b 1f
+
+.Ldoubleround4:
+ vld1.32 {q8-q9}, [sp, :256]
+1:
+ // x0 += x4, x12 = rotl32(x12 ^ x0, 16)
+ // x1 += x5, x13 = rotl32(x13 ^ x1, 16)
+ // x2 += x6, x14 = rotl32(x14 ^ x2, 16)
+ // x3 += x7, x15 = rotl32(x15 ^ x3, 16)
+ vadd.i32 q0, q0, q4
+ vadd.i32 q1, q1, q5
+ vadd.i32 q2, q2, q6
+ vadd.i32 q3, q3, q7
+
+ veor q12, q12, q0
+ veor q13, q13, q1
+ veor q14, q14, q2
+ veor q15, q15, q3
+
+ vrev32.16 q12, q12
+ vrev32.16 q13, q13
+ vrev32.16 q14, q14
+ vrev32.16 q15, q15
+
+ // x8 += x12, x4 = rotl32(x4 ^ x8, 12)
+ // x9 += x13, x5 = rotl32(x5 ^ x9, 12)
+ // x10 += x14, x6 = rotl32(x6 ^ x10, 12)
+ // x11 += x15, x7 = rotl32(x7 ^ x11, 12)
+ vadd.i32 q8, q8, q12
+ vadd.i32 q9, q9, q13
+ vadd.i32 q10, q10, q14
+ vadd.i32 q11, q11, q15
+
+ vst1.32 {q8-q9}, [sp, :256]
+
+ veor q8, q4, q8
+ veor q9, q5, q9
+ vshl.u32 q4, q8, #12
+ vshl.u32 q5, q9, #12
+ vsri.u32 q4, q8, #20
+ vsri.u32 q5, q9, #20
+
+ veor q8, q6, q10
+ veor q9, q7, q11
+ vshl.u32 q6, q8, #12
+ vshl.u32 q7, q9, #12
+ vsri.u32 q6, q8, #20
+ vsri.u32 q7, q9, #20
+
+ // x0 += x4, x12 = rotl32(x12 ^ x0, 8)
+ // x1 += x5, x13 = rotl32(x13 ^ x1, 8)
+ // x2 += x6, x14 = rotl32(x14 ^ x2, 8)
+ // x3 += x7, x15 = rotl32(x15 ^ x3, 8)
+ vld1.8 {d16}, [ip, :64]
+ vadd.i32 q0, q0, q4
+ vadd.i32 q1, q1, q5
+ vadd.i32 q2, q2, q6
+ vadd.i32 q3, q3, q7
+
+ veor q12, q12, q0
+ veor q13, q13, q1
+ veor q14, q14, q2
+ veor q15, q15, q3
+
+ vtbl.8 d24, {d24}, d16
+ vtbl.8 d25, {d25}, d16
+ vtbl.8 d26, {d26}, d16
+ vtbl.8 d27, {d27}, d16
+ vtbl.8 d28, {d28}, d16
+ vtbl.8 d29, {d29}, d16
+ vtbl.8 d30, {d30}, d16
+ vtbl.8 d31, {d31}, d16
+
+ vld1.32 {q8-q9}, [sp, :256]
+
+ // x8 += x12, x4 = rotl32(x4 ^ x8, 7)
+ // x9 += x13, x5 = rotl32(x5 ^ x9, 7)
+ // x10 += x14, x6 = rotl32(x6 ^ x10, 7)
+ // x11 += x15, x7 = rotl32(x7 ^ x11, 7)
+ vadd.i32 q8, q8, q12
+ vadd.i32 q9, q9, q13
+ vadd.i32 q10, q10, q14
+ vadd.i32 q11, q11, q15
+
+ vst1.32 {q8-q9}, [sp, :256]
+
+ veor q8, q4, q8
+ veor q9, q5, q9
+ vshl.u32 q4, q8, #7
+ vshl.u32 q5, q9, #7
+ vsri.u32 q4, q8, #25
+ vsri.u32 q5, q9, #25
+
+ veor q8, q6, q10
+ veor q9, q7, q11
+ vshl.u32 q6, q8, #7
+ vshl.u32 q7, q9, #7
+ vsri.u32 q6, q8, #25
+ vsri.u32 q7, q9, #25
+
+ vld1.32 {q8-q9}, [sp, :256]
+
+ // x0 += x5, x15 = rotl32(x15 ^ x0, 16)
+ // x1 += x6, x12 = rotl32(x12 ^ x1, 16)
+ // x2 += x7, x13 = rotl32(x13 ^ x2, 16)
+ // x3 += x4, x14 = rotl32(x14 ^ x3, 16)
+ vadd.i32 q0, q0, q5
+ vadd.i32 q1, q1, q6
+ vadd.i32 q2, q2, q7
+ vadd.i32 q3, q3, q4
+
+ veor q15, q15, q0
+ veor q12, q12, q1
+ veor q13, q13, q2
+ veor q14, q14, q3
+
+ vrev32.16 q15, q15
+ vrev32.16 q12, q12
+ vrev32.16 q13, q13
+ vrev32.16 q14, q14
+
+ // x10 += x15, x5 = rotl32(x5 ^ x10, 12)
+ // x11 += x12, x6 = rotl32(x6 ^ x11, 12)
+ // x8 += x13, x7 = rotl32(x7 ^ x8, 12)
+ // x9 += x14, x4 = rotl32(x4 ^ x9, 12)
+ vadd.i32 q10, q10, q15
+ vadd.i32 q11, q11, q12
+ vadd.i32 q8, q8, q13
+ vadd.i32 q9, q9, q14
+
+ vst1.32 {q8-q9}, [sp, :256]
+
+ veor q8, q7, q8
+ veor q9, q4, q9
+ vshl.u32 q7, q8, #12
+ vshl.u32 q4, q9, #12
+ vsri.u32 q7, q8, #20
+ vsri.u32 q4, q9, #20
+
+ veor q8, q5, q10
+ veor q9, q6, q11
+ vshl.u32 q5, q8, #12
+ vshl.u32 q6, q9, #12
+ vsri.u32 q5, q8, #20
+ vsri.u32 q6, q9, #20
+
+ // x0 += x5, x15 = rotl32(x15 ^ x0, 8)
+ // x1 += x6, x12 = rotl32(x12 ^ x1, 8)
+ // x2 += x7, x13 = rotl32(x13 ^ x2, 8)
+ // x3 += x4, x14 = rotl32(x14 ^ x3, 8)
+ vld1.8 {d16}, [ip, :64]
+ vadd.i32 q0, q0, q5
+ vadd.i32 q1, q1, q6
+ vadd.i32 q2, q2, q7
+ vadd.i32 q3, q3, q4
+
+ veor q15, q15, q0
+ veor q12, q12, q1
+ veor q13, q13, q2
+ veor q14, q14, q3
+
+ vtbl.8 d30, {d30}, d16
+ vtbl.8 d31, {d31}, d16
+ vtbl.8 d24, {d24}, d16
+ vtbl.8 d25, {d25}, d16
+ vtbl.8 d26, {d26}, d16
+ vtbl.8 d27, {d27}, d16
+ vtbl.8 d28, {d28}, d16
+ vtbl.8 d29, {d29}, d16
+
+ vld1.32 {q8-q9}, [sp, :256]
+
+ // x10 += x15, x5 = rotl32(x5 ^ x10, 7)
+ // x11 += x12, x6 = rotl32(x6 ^ x11, 7)
+ // x8 += x13, x7 = rotl32(x7 ^ x8, 7)
+ // x9 += x14, x4 = rotl32(x4 ^ x9, 7)
+ vadd.i32 q10, q10, q15
+ vadd.i32 q11, q11, q12
+ vadd.i32 q8, q8, q13
+ vadd.i32 q9, q9, q14
+
+ vst1.32 {q8-q9}, [sp, :256]
+
+ veor q8, q7, q8
+ veor q9, q4, q9
+ vshl.u32 q7, q8, #7
+ vshl.u32 q4, q9, #7
+ vsri.u32 q7, q8, #25
+ vsri.u32 q4, q9, #25
+
+ veor q8, q5, q10
+ veor q9, q6, q11
+ vshl.u32 q5, q8, #7
+ vshl.u32 q6, q9, #7
+ vsri.u32 q5, q8, #25
+ vsri.u32 q6, q9, #25
+
+ subs r3, r3, #2
+ bne .Ldoubleround4
+
+ // x0..7[0-3] are in q0-q7, x10..15[0-3] are in q10-q15.
+ // x8..9[0-3] are on the stack.
+
+ // Re-interleave the words in the first two rows of each block (x0..7).
+ // Also add the counter values 0-3 to x12[0-3].
+ vld1.32 {q8}, [r5, :128] // load counter values 0-3
+ vzip.32 q0, q1 // => (0 1 0 1) (0 1 0 1)
+ vzip.32 q2, q3 // => (2 3 2 3) (2 3 2 3)
+ vzip.32 q4, q5 // => (4 5 4 5) (4 5 4 5)
+ vzip.32 q6, q7 // => (6 7 6 7) (6 7 6 7)
+ vadd.u32 q12, q8 // x12 += counter values 0-3
+ vswp d1, d4
+ vswp d3, d6
+ vld1.32 {q8-q9}, [r0]! // load s0..7
+ vswp d9, d12
+ vswp d11, d14
+
+ // Swap q1 and q4 so that we'll free up consecutive registers (q0-q1)
+ // after XORing the first 32 bytes.
+ vswp q1, q4
+
+ // First two rows of each block are (q0 q1) (q2 q6) (q4 q5) (q3 q7)
+
+ // x0..3[0-3] += s0..3[0-3] (add orig state to 1st row of each block)
+ vadd.u32 q0, q0, q8
+ vadd.u32 q2, q2, q8
+ vadd.u32 q4, q4, q8
+ vadd.u32 q3, q3, q8
+
+ // x4..7[0-3] += s4..7[0-3] (add orig state to 2nd row of each block)
+ vadd.u32 q1, q1, q9
+ vadd.u32 q6, q6, q9
+ vadd.u32 q5, q5, q9
+ vadd.u32 q7, q7, q9
+
+ // XOR first 32 bytes using keystream from first two rows of first block
+ vld1.8 {q8-q9}, [r2]!
+ veor q8, q8, q0
+ veor q9, q9, q1
+ vst1.8 {q8-q9}, [r1]!
+
+ // Re-interleave the words in the last two rows of each block (x8..15).
+ vld1.32 {q8-q9}, [sp, :256]
+ vzip.32 q12, q13 // => (12 13 12 13) (12 13 12 13)
+ vzip.32 q14, q15 // => (14 15 14 15) (14 15 14 15)
+ vzip.32 q8, q9 // => (8 9 8 9) (8 9 8 9)
+ vzip.32 q10, q11 // => (10 11 10 11) (10 11 10 11)
+ vld1.32 {q0-q1}, [r0] // load s8..15
+ vswp d25, d28
+ vswp d27, d30
+ vswp d17, d20
+ vswp d19, d22
+
+ // Last two rows of each block are (q8 q12) (q10 q14) (q9 q13) (q11 q15)
+
+ // x8..11[0-3] += s8..11[0-3] (add orig state to 3rd row of each block)
+ vadd.u32 q8, q8, q0
+ vadd.u32 q10, q10, q0
+ vadd.u32 q9, q9, q0
+ vadd.u32 q11, q11, q0
+
+ // x12..15[0-3] += s12..15[0-3] (add orig state to 4th row of each block)
+ vadd.u32 q12, q12, q1
+ vadd.u32 q14, q14, q1
+ vadd.u32 q13, q13, q1
+ vadd.u32 q15, q15, q1
+
+ // XOR the rest of the data with the keystream
+
+ vld1.8 {q0-q1}, [r2]!
+ veor q0, q0, q8
+ veor q1, q1, q12
+ vst1.8 {q0-q1}, [r1]!
+
+ vld1.8 {q0-q1}, [r2]!
+ veor q0, q0, q2
+ veor q1, q1, q6
+ vst1.8 {q0-q1}, [r1]!
+
+ vld1.8 {q0-q1}, [r2]!
+ veor q0, q0, q10
+ veor q1, q1, q14
+ vst1.8 {q0-q1}, [r1]!
+
+ vld1.8 {q0-q1}, [r2]!
+ veor q0, q0, q4
+ veor q1, q1, q5
+ vst1.8 {q0-q1}, [r1]!
+
+ vld1.8 {q0-q1}, [r2]!
+ veor q0, q0, q9
+ veor q1, q1, q13
+ vst1.8 {q0-q1}, [r1]!
+
+ vld1.8 {q0-q1}, [r2]!
+ veor q0, q0, q3
+ veor q1, q1, q7
+ vst1.8 {q0-q1}, [r1]!
+
+ vld1.8 {q0-q1}, [r2]
+ mov sp, r4 // restore original stack pointer
+ veor q0, q0, q11
+ veor q1, q1, q15
+ vst1.8 {q0-q1}, [r1]
+
+ pop {r4-r5}
+ bx lr
+ENDPROC(chacha_4block_xor_neon)
diff --git a/arch/arm/crypto/chacha-scalar-core.S b/arch/arm/crypto/chacha-scalar-core.S
new file mode 100644
index 0000000..2985b80
--- /dev/null
+++ b/arch/arm/crypto/chacha-scalar-core.S
@@ -0,0 +1,460 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2018 Google, Inc.
+ */
+
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+
+/*
+ * Design notes:
+ *
+ * 16 registers would be needed to hold the state matrix, but only 14 are
+ * available because 'sp' and 'pc' cannot be used. So we spill the elements
+ * (x8, x9) to the stack and swap them out with (x10, x11). This adds one
+ * 'ldrd' and one 'strd' instruction per round.
+ *
+ * All rotates are performed using the implicit rotate operand accepted by the
+ * 'add' and 'eor' instructions. This is faster than using explicit rotate
+ * instructions. To make this work, we allow the values in the second and last
+ * rows of the ChaCha state matrix (rows 'b' and 'd') to temporarily have the
+ * wrong rotation amount. The rotation amount is then fixed up just in time
+ * when the values are used. 'brot' is the number of bits the values in row 'b'
+ * need to be rotated right to arrive at the correct values, and 'drot'
+ * similarly for row 'd'. (brot, drot) start out as (0, 0) but we make it such
+ * that they end up as (25, 24) after every round.
+ */
+
+ // ChaCha state registers
+ X0 .req r0
+ X1 .req r1
+ X2 .req r2
+ X3 .req r3
+ X4 .req r4
+ X5 .req r5
+ X6 .req r6
+ X7 .req r7
+ X8_X10 .req r8 // shared by x8 and x10
+ X9_X11 .req r9 // shared by x9 and x11
+ X12 .req r10
+ X13 .req r11
+ X14 .req r12
+ X15 .req r14
+
+.macro __rev out, in, t0, t1, t2
+.if __LINUX_ARM_ARCH__ >= 6
+ rev \out, \in
+.else
+ lsl \t0, \in, #24
+ and \t1, \in, #0xff00
+ and \t2, \in, #0xff0000
+ orr \out, \t0, \in, lsr #24
+ orr \out, \out, \t1, lsl #8
+ orr \out, \out, \t2, lsr #8
+.endif
+.endm
+
+.macro _le32_bswap x, t0, t1, t2
+#ifdef __ARMEB__
+ __rev \x, \x, \t0, \t1, \t2
+#endif
+.endm
+
+.macro _le32_bswap_4x a, b, c, d, t0, t1, t2
+ _le32_bswap \a, \t0, \t1, \t2
+ _le32_bswap \b, \t0, \t1, \t2
+ _le32_bswap \c, \t0, \t1, \t2
+ _le32_bswap \d, \t0, \t1, \t2
+.endm
+
+.macro __ldrd a, b, src, offset
+#if __LINUX_ARM_ARCH__ >= 6
+ ldrd \a, \b, [\src, #\offset]
+#else
+ ldr \a, [\src, #\offset]
+ ldr \b, [\src, #\offset + 4]
+#endif
+.endm
+
+.macro __strd a, b, dst, offset
+#if __LINUX_ARM_ARCH__ >= 6
+ strd \a, \b, [\dst, #\offset]
+#else
+ str \a, [\dst, #\offset]
+ str \b, [\dst, #\offset + 4]
+#endif
+.endm
+
+.macro _halfround a1, b1, c1, d1, a2, b2, c2, d2
+
+ // a += b; d ^= a; d = rol(d, 16);
+ add \a1, \a1, \b1, ror #brot
+ add \a2, \a2, \b2, ror #brot
+ eor \d1, \a1, \d1, ror #drot
+ eor \d2, \a2, \d2, ror #drot
+ // drot == 32 - 16 == 16
+
+ // c += d; b ^= c; b = rol(b, 12);
+ add \c1, \c1, \d1, ror #16
+ add \c2, \c2, \d2, ror #16
+ eor \b1, \c1, \b1, ror #brot
+ eor \b2, \c2, \b2, ror #brot
+ // brot == 32 - 12 == 20
+
+ // a += b; d ^= a; d = rol(d, 8);
+ add \a1, \a1, \b1, ror #20
+ add \a2, \a2, \b2, ror #20
+ eor \d1, \a1, \d1, ror #16
+ eor \d2, \a2, \d2, ror #16
+ // drot == 32 - 8 == 24
+
+ // c += d; b ^= c; b = rol(b, 7);
+ add \c1, \c1, \d1, ror #24
+ add \c2, \c2, \d2, ror #24
+ eor \b1, \c1, \b1, ror #20
+ eor \b2, \c2, \b2, ror #20
+ // brot == 32 - 7 == 25
+.endm
+
+.macro _doubleround
+
+ // column round
+
+ // quarterrounds: (x0, x4, x8, x12) and (x1, x5, x9, x13)
+ _halfround X0, X4, X8_X10, X12, X1, X5, X9_X11, X13
+
+ // save (x8, x9); restore (x10, x11)
+ __strd X8_X10, X9_X11, sp, 0
+ __ldrd X8_X10, X9_X11, sp, 8
+
+ // quarterrounds: (x2, x6, x10, x14) and (x3, x7, x11, x15)
+ _halfround X2, X6, X8_X10, X14, X3, X7, X9_X11, X15
+
+ .set brot, 25
+ .set drot, 24
+
+ // diagonal round
+
+ // quarterrounds: (x0, x5, x10, x15) and (x1, x6, x11, x12)
+ _halfround X0, X5, X8_X10, X15, X1, X6, X9_X11, X12
+
+ // save (x10, x11); restore (x8, x9)
+ __strd X8_X10, X9_X11, sp, 8
+ __ldrd X8_X10, X9_X11, sp, 0
+
+ // quarterrounds: (x2, x7, x8, x13) and (x3, x4, x9, x14)
+ _halfround X2, X7, X8_X10, X13, X3, X4, X9_X11, X14
+.endm
+
+.macro _chacha_permute nrounds
+ .set brot, 0
+ .set drot, 0
+ .rept \nrounds / 2
+ _doubleround
+ .endr
+.endm
+
+.macro _chacha nrounds
+
+.Lnext_block\@:
+ // Stack: unused0-unused1 x10-x11 x0-x15 OUT IN LEN
+ // Registers contain x0-x9,x12-x15.
+
+ // Do the core ChaCha permutation to update x0-x15.
+ _chacha_permute \nrounds
+
+ add sp, #8
+ // Stack: x10-x11 orig_x0-orig_x15 OUT IN LEN
+ // Registers contain x0-x9,x12-x15.
+ // x4-x7 are rotated by 'brot'; x12-x15 are rotated by 'drot'.
+
+ // Free up some registers (r8-r12,r14) by pushing (x8-x9,x12-x15).
+ push {X8_X10, X9_X11, X12, X13, X14, X15}
+
+ // Load (OUT, IN, LEN).
+ ldr r14, [sp, #96]
+ ldr r12, [sp, #100]
+ ldr r11, [sp, #104]
+
+ orr r10, r14, r12
+
+ // Use slow path if fewer than 64 bytes remain.
+ cmp r11, #64
+ blt .Lxor_slowpath\@
+
+ // Use slow path if IN and/or OUT isn't 4-byte aligned. Needed even on
+ // ARMv6+, since ldmia and stmia (used below) still require alignment.
+ tst r10, #3
+ bne .Lxor_slowpath\@
+
+ // Fast path: XOR 64 bytes of aligned data.
+
+ // Stack: x8-x9 x12-x15 x10-x11 orig_x0-orig_x15 OUT IN LEN
+ // Registers: r0-r7 are x0-x7; r8-r11 are free; r12 is IN; r14 is OUT.
+ // x4-x7 are rotated by 'brot'; x12-x15 are rotated by 'drot'.
+
+ // x0-x3
+ __ldrd r8, r9, sp, 32
+ __ldrd r10, r11, sp, 40
+ add X0, X0, r8
+ add X1, X1, r9
+ add X2, X2, r10
+ add X3, X3, r11
+ _le32_bswap_4x X0, X1, X2, X3, r8, r9, r10
+ ldmia r12!, {r8-r11}
+ eor X0, X0, r8
+ eor X1, X1, r9
+ eor X2, X2, r10
+ eor X3, X3, r11
+ stmia r14!, {X0-X3}
+
+ // x4-x7
+ __ldrd r8, r9, sp, 48
+ __ldrd r10, r11, sp, 56
+ add X4, r8, X4, ror #brot
+ add X5, r9, X5, ror #brot
+ ldmia r12!, {X0-X3}
+ add X6, r10, X6, ror #brot
+ add X7, r11, X7, ror #brot
+ _le32_bswap_4x X4, X5, X6, X7, r8, r9, r10
+ eor X4, X4, X0
+ eor X5, X5, X1
+ eor X6, X6, X2
+ eor X7, X7, X3
+ stmia r14!, {X4-X7}
+
+ // x8-x15
+ pop {r0-r7} // (x8-x9,x12-x15,x10-x11)
+ __ldrd r8, r9, sp, 32
+ __ldrd r10, r11, sp, 40
+ add r0, r0, r8 // x8
+ add r1, r1, r9 // x9
+ add r6, r6, r10 // x10
+ add r7, r7, r11 // x11
+ _le32_bswap_4x r0, r1, r6, r7, r8, r9, r10
+ ldmia r12!, {r8-r11}
+ eor r0, r0, r8 // x8
+ eor r1, r1, r9 // x9
+ eor r6, r6, r10 // x10
+ eor r7, r7, r11 // x11
+ stmia r14!, {r0,r1,r6,r7}
+ ldmia r12!, {r0,r1,r6,r7}
+ __ldrd r8, r9, sp, 48
+ __ldrd r10, r11, sp, 56
+ add r2, r8, r2, ror #drot // x12
+ add r3, r9, r3, ror #drot // x13
+ add r4, r10, r4, ror #drot // x14
+ add r5, r11, r5, ror #drot // x15
+ _le32_bswap_4x r2, r3, r4, r5, r9, r10, r11
+ ldr r9, [sp, #72] // load LEN
+ eor r2, r2, r0 // x12
+ eor r3, r3, r1 // x13
+ eor r4, r4, r6 // x14
+ eor r5, r5, r7 // x15
+ subs r9, #64 // decrement and check LEN
+ stmia r14!, {r2-r5}
+
+ beq .Ldone\@
+
+.Lprepare_for_next_block\@:
+
+ // Stack: x0-x15 OUT IN LEN
+
+ // Increment block counter (x12)
+ add r8, #1
+
+ // Store updated (OUT, IN, LEN)
+ str r14, [sp, #64]
+ str r12, [sp, #68]
+ str r9, [sp, #72]
+
+ mov r14, sp
+
+ // Store updated block counter (x12)
+ str r8, [sp, #48]
+
+ sub sp, #16
+
+ // Reload state and do next block
+ ldmia r14!, {r0-r11} // load x0-x11
+ __strd r10, r11, sp, 8 // store x10-x11 before state
+ ldmia r14, {r10-r12,r14} // load x12-x15
+ b .Lnext_block\@
+
+.Lxor_slowpath\@:
+ // Slow path: < 64 bytes remaining, or unaligned input or output buffer.
+ // We handle it by storing the 64 bytes of keystream to the stack, then
+ // XOR-ing the needed portion with the data.
+
+ // Allocate keystream buffer
+ sub sp, #64
+ mov r14, sp
+
+ // Stack: ks0-ks15 x8-x9 x12-x15 x10-x11 orig_x0-orig_x15 OUT IN LEN
+ // Registers: r0-r7 are x0-x7; r8-r11 are free; r12 is IN; r14 is &ks0.
+ // x4-x7 are rotated by 'brot'; x12-x15 are rotated by 'drot'.
+
+ // Save keystream for x0-x3
+ __ldrd r8, r9, sp, 96
+ __ldrd r10, r11, sp, 104
+ add X0, X0, r8
+ add X1, X1, r9
+ add X2, X2, r10
+ add X3, X3, r11
+ _le32_bswap_4x X0, X1, X2, X3, r8, r9, r10
+ stmia r14!, {X0-X3}
+
+ // Save keystream for x4-x7
+ __ldrd r8, r9, sp, 112
+ __ldrd r10, r11, sp, 120
+ add X4, r8, X4, ror #brot
+ add X5, r9, X5, ror #brot
+ add X6, r10, X6, ror #brot
+ add X7, r11, X7, ror #brot
+ _le32_bswap_4x X4, X5, X6, X7, r8, r9, r10
+ add r8, sp, #64
+ stmia r14!, {X4-X7}
+
+ // Save keystream for x8-x15
+ ldm r8, {r0-r7} // (x8-x9,x12-x15,x10-x11)
+ __ldrd r8, r9, sp, 128
+ __ldrd r10, r11, sp, 136
+ add r0, r0, r8 // x8
+ add r1, r1, r9 // x9
+ add r6, r6, r10 // x10
+ add r7, r7, r11 // x11
+ _le32_bswap_4x r0, r1, r6, r7, r8, r9, r10
+ stmia r14!, {r0,r1,r6,r7}
+ __ldrd r8, r9, sp, 144
+ __ldrd r10, r11, sp, 152
+ add r2, r8, r2, ror #drot // x12
+ add r3, r9, r3, ror #drot // x13
+ add r4, r10, r4, ror #drot // x14
+ add r5, r11, r5, ror #drot // x15
+ _le32_bswap_4x r2, r3, r4, r5, r9, r10, r11
+ stmia r14, {r2-r5}
+
+ // Stack: ks0-ks15 unused0-unused7 x0-x15 OUT IN LEN
+ // Registers: r8 is block counter, r12 is IN.
+
+ ldr r9, [sp, #168] // LEN
+ ldr r14, [sp, #160] // OUT
+ cmp r9, #64
+ mov r0, sp
+ movle r1, r9
+ movgt r1, #64
+ // r1 is number of bytes to XOR, in range [1, 64]
+
+.if __LINUX_ARM_ARCH__ < 6
+ orr r2, r12, r14
+ tst r2, #3 // IN or OUT misaligned?
+ bne .Lxor_next_byte\@
+.endif
+
+ // XOR a word at a time
+.rept 16
+ subs r1, #4
+ blt .Lxor_words_done\@
+ ldr r2, [r12], #4
+ ldr r3, [r0], #4
+ eor r2, r2, r3
+ str r2, [r14], #4
+.endr
+ b .Lxor_slowpath_done\@
+.Lxor_words_done\@:
+ ands r1, r1, #3
+ beq .Lxor_slowpath_done\@
+
+ // XOR a byte at a time
+.Lxor_next_byte\@:
+ ldrb r2, [r12], #1
+ ldrb r3, [r0], #1
+ eor r2, r2, r3
+ strb r2, [r14], #1
+ subs r1, #1
+ bne .Lxor_next_byte\@
+
+.Lxor_slowpath_done\@:
+ subs r9, #64
+ add sp, #96
+ bgt .Lprepare_for_next_block\@
+
+.Ldone\@:
+.endm // _chacha
+
+/*
+ * void chacha_doarm(u8 *dst, const u8 *src, unsigned int bytes,
+ * const u32 *state, int nrounds);
+ */
+ENTRY(chacha_doarm)
+ cmp r2, #0 // len == 0?
+ reteq lr
+
+ ldr ip, [sp]
+ cmp ip, #12
+
+ push {r0-r2,r4-r11,lr}
+
+ // Push state x0-x15 onto stack.
+ // Also store an extra copy of x10-x11 just before the state.
+
+ add X12, r3, #48
+ ldm X12, {X12,X13,X14,X15}
+ push {X12,X13,X14,X15}
+ sub sp, sp, #64
+
+ __ldrd X8_X10, X9_X11, r3, 40
+ __strd X8_X10, X9_X11, sp, 8
+ __strd X8_X10, X9_X11, sp, 56
+ ldm r3, {X0-X9_X11}
+ __strd X0, X1, sp, 16
+ __strd X2, X3, sp, 24
+ __strd X4, X5, sp, 32
+ __strd X6, X7, sp, 40
+ __strd X8_X10, X9_X11, sp, 48
+
+ beq 1f
+ _chacha 20
+
+0: add sp, #76
+ pop {r4-r11, pc}
+
+1: _chacha 12
+ b 0b
+ENDPROC(chacha_doarm)
+
+/*
+ * void hchacha_block_arm(const u32 state[16], u32 out[8], int nrounds);
+ */
+ENTRY(hchacha_block_arm)
+ push {r1,r4-r11,lr}
+
+ cmp r2, #12 // ChaCha12 ?
+
+ mov r14, r0
+ ldmia r14!, {r0-r11} // load x0-x11
+ push {r10-r11} // store x10-x11 to stack
+ ldm r14, {r10-r12,r14} // load x12-x15
+ sub sp, #8
+
+ beq 1f
+ _chacha_permute 20
+
+ // Skip over (unused0-unused1, x10-x11)
+0: add sp, #16
+
+ // Fix up rotations of x12-x15
+ ror X12, X12, #drot
+ ror X13, X13, #drot
+ pop {r4} // load 'out'
+ ror X14, X14, #drot
+ ror X15, X15, #drot
+
+ // Store (x0-x3,x12-x15) to 'out'
+ stm r4, {X0,X1,X2,X3,X12,X13,X14,X15}
+
+ pop {r4-r11,pc}
+
+1: _chacha_permute 12
+ b 0b
+ENDPROC(hchacha_block_arm)
diff --git a/arch/arm/crypto/chacha20-neon-core.S b/arch/arm/crypto/chacha20-neon-core.S
deleted file mode 100644
index 451a849..0000000
--- a/arch/arm/crypto/chacha20-neon-core.S
+++ /dev/null
@@ -1,521 +0,0 @@
-/*
- * ChaCha20 256-bit cipher algorithm, RFC7539, ARM NEON functions
- *
- * Copyright (C) 2016 Linaro, Ltd. <ard.biesheuvel@linaro.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Based on:
- * ChaCha20 256-bit cipher algorithm, RFC7539, x64 SSE3 functions
- *
- * Copyright (C) 2015 Martin Willi
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#include <linux/linkage.h>
-
- .text
- .fpu neon
- .align 5
-
-ENTRY(chacha20_block_xor_neon)
- // r0: Input state matrix, s
- // r1: 1 data block output, o
- // r2: 1 data block input, i
-
- //
- // This function encrypts one ChaCha20 block by loading the state matrix
- // in four NEON registers. It performs matrix operation on four words in
- // parallel, but requireds shuffling to rearrange the words after each
- // round.
- //
-
- // x0..3 = s0..3
- add ip, r0, #0x20
- vld1.32 {q0-q1}, [r0]
- vld1.32 {q2-q3}, [ip]
-
- vmov q8, q0
- vmov q9, q1
- vmov q10, q2
- vmov q11, q3
-
- mov r3, #10
-
-.Ldoubleround:
- // x0 += x1, x3 = rotl32(x3 ^ x0, 16)
- vadd.i32 q0, q0, q1
- veor q3, q3, q0
- vrev32.16 q3, q3
-
- // x2 += x3, x1 = rotl32(x1 ^ x2, 12)
- vadd.i32 q2, q2, q3
- veor q4, q1, q2
- vshl.u32 q1, q4, #12
- vsri.u32 q1, q4, #20
-
- // x0 += x1, x3 = rotl32(x3 ^ x0, 8)
- vadd.i32 q0, q0, q1
- veor q4, q3, q0
- vshl.u32 q3, q4, #8
- vsri.u32 q3, q4, #24
-
- // x2 += x3, x1 = rotl32(x1 ^ x2, 7)
- vadd.i32 q2, q2, q3
- veor q4, q1, q2
- vshl.u32 q1, q4, #7
- vsri.u32 q1, q4, #25
-
- // x1 = shuffle32(x1, MASK(0, 3, 2, 1))
- vext.8 q1, q1, q1, #4
- // x2 = shuffle32(x2, MASK(1, 0, 3, 2))
- vext.8 q2, q2, q2, #8
- // x3 = shuffle32(x3, MASK(2, 1, 0, 3))
- vext.8 q3, q3, q3, #12
-
- // x0 += x1, x3 = rotl32(x3 ^ x0, 16)
- vadd.i32 q0, q0, q1
- veor q3, q3, q0
- vrev32.16 q3, q3
-
- // x2 += x3, x1 = rotl32(x1 ^ x2, 12)
- vadd.i32 q2, q2, q3
- veor q4, q1, q2
- vshl.u32 q1, q4, #12
- vsri.u32 q1, q4, #20
-
- // x0 += x1, x3 = rotl32(x3 ^ x0, 8)
- vadd.i32 q0, q0, q1
- veor q4, q3, q0
- vshl.u32 q3, q4, #8
- vsri.u32 q3, q4, #24
-
- // x2 += x3, x1 = rotl32(x1 ^ x2, 7)
- vadd.i32 q2, q2, q3
- veor q4, q1, q2
- vshl.u32 q1, q4, #7
- vsri.u32 q1, q4, #25
-
- // x1 = shuffle32(x1, MASK(2, 1, 0, 3))
- vext.8 q1, q1, q1, #12
- // x2 = shuffle32(x2, MASK(1, 0, 3, 2))
- vext.8 q2, q2, q2, #8
- // x3 = shuffle32(x3, MASK(0, 3, 2, 1))
- vext.8 q3, q3, q3, #4
-
- subs r3, r3, #1
- bne .Ldoubleround
-
- add ip, r2, #0x20
- vld1.8 {q4-q5}, [r2]
- vld1.8 {q6-q7}, [ip]
-
- // o0 = i0 ^ (x0 + s0)
- vadd.i32 q0, q0, q8
- veor q0, q0, q4
-
- // o1 = i1 ^ (x1 + s1)
- vadd.i32 q1, q1, q9
- veor q1, q1, q5
-
- // o2 = i2 ^ (x2 + s2)
- vadd.i32 q2, q2, q10
- veor q2, q2, q6
-
- // o3 = i3 ^ (x3 + s3)
- vadd.i32 q3, q3, q11
- veor q3, q3, q7
-
- add ip, r1, #0x20
- vst1.8 {q0-q1}, [r1]
- vst1.8 {q2-q3}, [ip]
-
- bx lr
-ENDPROC(chacha20_block_xor_neon)
-
- .align 5
-ENTRY(chacha20_4block_xor_neon)
- push {r4-r6, lr}
- mov ip, sp // preserve the stack pointer
- sub r3, sp, #0x20 // allocate a 32 byte buffer
- bic r3, r3, #0x1f // aligned to 32 bytes
- mov sp, r3
-
- // r0: Input state matrix, s
- // r1: 4 data blocks output, o
- // r2: 4 data blocks input, i
-
- //
- // This function encrypts four consecutive ChaCha20 blocks by loading
- // the state matrix in NEON registers four times. The algorithm performs
- // each operation on the corresponding word of each state matrix, hence
- // requires no word shuffling. For final XORing step we transpose the
- // matrix by interleaving 32- and then 64-bit words, which allows us to
- // do XOR in NEON registers.
- //
-
- // x0..15[0-3] = s0..3[0..3]
- add r3, r0, #0x20
- vld1.32 {q0-q1}, [r0]
- vld1.32 {q2-q3}, [r3]
-
- adr r3, CTRINC
- vdup.32 q15, d7[1]
- vdup.32 q14, d7[0]
- vld1.32 {q11}, [r3, :128]
- vdup.32 q13, d6[1]
- vdup.32 q12, d6[0]
- vadd.i32 q12, q12, q11 // x12 += counter values 0-3
- vdup.32 q11, d5[1]
- vdup.32 q10, d5[0]
- vdup.32 q9, d4[1]
- vdup.32 q8, d4[0]
- vdup.32 q7, d3[1]
- vdup.32 q6, d3[0]
- vdup.32 q5, d2[1]
- vdup.32 q4, d2[0]
- vdup.32 q3, d1[1]
- vdup.32 q2, d1[0]
- vdup.32 q1, d0[1]
- vdup.32 q0, d0[0]
-
- mov r3, #10
-
-.Ldoubleround4:
- // x0 += x4, x12 = rotl32(x12 ^ x0, 16)
- // x1 += x5, x13 = rotl32(x13 ^ x1, 16)
- // x2 += x6, x14 = rotl32(x14 ^ x2, 16)
- // x3 += x7, x15 = rotl32(x15 ^ x3, 16)
- vadd.i32 q0, q0, q4
- vadd.i32 q1, q1, q5
- vadd.i32 q2, q2, q6
- vadd.i32 q3, q3, q7
-
- veor q12, q12, q0
- veor q13, q13, q1
- veor q14, q14, q2
- veor q15, q15, q3
-
- vrev32.16 q12, q12
- vrev32.16 q13, q13
- vrev32.16 q14, q14
- vrev32.16 q15, q15
-
- // x8 += x12, x4 = rotl32(x4 ^ x8, 12)
- // x9 += x13, x5 = rotl32(x5 ^ x9, 12)
- // x10 += x14, x6 = rotl32(x6 ^ x10, 12)
- // x11 += x15, x7 = rotl32(x7 ^ x11, 12)
- vadd.i32 q8, q8, q12
- vadd.i32 q9, q9, q13
- vadd.i32 q10, q10, q14
- vadd.i32 q11, q11, q15
-
- vst1.32 {q8-q9}, [sp, :256]
-
- veor q8, q4, q8
- veor q9, q5, q9
- vshl.u32 q4, q8, #12
- vshl.u32 q5, q9, #12
- vsri.u32 q4, q8, #20
- vsri.u32 q5, q9, #20
-
- veor q8, q6, q10
- veor q9, q7, q11
- vshl.u32 q6, q8, #12
- vshl.u32 q7, q9, #12
- vsri.u32 q6, q8, #20
- vsri.u32 q7, q9, #20
-
- // x0 += x4, x12 = rotl32(x12 ^ x0, 8)
- // x1 += x5, x13 = rotl32(x13 ^ x1, 8)
- // x2 += x6, x14 = rotl32(x14 ^ x2, 8)
- // x3 += x7, x15 = rotl32(x15 ^ x3, 8)
- vadd.i32 q0, q0, q4
- vadd.i32 q1, q1, q5
- vadd.i32 q2, q2, q6
- vadd.i32 q3, q3, q7
-
- veor q8, q12, q0
- veor q9, q13, q1
- vshl.u32 q12, q8, #8
- vshl.u32 q13, q9, #8
- vsri.u32 q12, q8, #24
- vsri.u32 q13, q9, #24
-
- veor q8, q14, q2
- veor q9, q15, q3
- vshl.u32 q14, q8, #8
- vshl.u32 q15, q9, #8
- vsri.u32 q14, q8, #24
- vsri.u32 q15, q9, #24
-
- vld1.32 {q8-q9}, [sp, :256]
-
- // x8 += x12, x4 = rotl32(x4 ^ x8, 7)
- // x9 += x13, x5 = rotl32(x5 ^ x9, 7)
- // x10 += x14, x6 = rotl32(x6 ^ x10, 7)
- // x11 += x15, x7 = rotl32(x7 ^ x11, 7)
- vadd.i32 q8, q8, q12
- vadd.i32 q9, q9, q13
- vadd.i32 q10, q10, q14
- vadd.i32 q11, q11, q15
-
- vst1.32 {q8-q9}, [sp, :256]
-
- veor q8, q4, q8
- veor q9, q5, q9
- vshl.u32 q4, q8, #7
- vshl.u32 q5, q9, #7
- vsri.u32 q4, q8, #25
- vsri.u32 q5, q9, #25
-
- veor q8, q6, q10
- veor q9, q7, q11
- vshl.u32 q6, q8, #7
- vshl.u32 q7, q9, #7
- vsri.u32 q6, q8, #25
- vsri.u32 q7, q9, #25
-
- vld1.32 {q8-q9}, [sp, :256]
-
- // x0 += x5, x15 = rotl32(x15 ^ x0, 16)
- // x1 += x6, x12 = rotl32(x12 ^ x1, 16)
- // x2 += x7, x13 = rotl32(x13 ^ x2, 16)
- // x3 += x4, x14 = rotl32(x14 ^ x3, 16)
- vadd.i32 q0, q0, q5
- vadd.i32 q1, q1, q6
- vadd.i32 q2, q2, q7
- vadd.i32 q3, q3, q4
-
- veor q15, q15, q0
- veor q12, q12, q1
- veor q13, q13, q2
- veor q14, q14, q3
-
- vrev32.16 q15, q15
- vrev32.16 q12, q12
- vrev32.16 q13, q13
- vrev32.16 q14, q14
-
- // x10 += x15, x5 = rotl32(x5 ^ x10, 12)
- // x11 += x12, x6 = rotl32(x6 ^ x11, 12)
- // x8 += x13, x7 = rotl32(x7 ^ x8, 12)
- // x9 += x14, x4 = rotl32(x4 ^ x9, 12)
- vadd.i32 q10, q10, q15
- vadd.i32 q11, q11, q12
- vadd.i32 q8, q8, q13
- vadd.i32 q9, q9, q14
-
- vst1.32 {q8-q9}, [sp, :256]
-
- veor q8, q7, q8
- veor q9, q4, q9
- vshl.u32 q7, q8, #12
- vshl.u32 q4, q9, #12
- vsri.u32 q7, q8, #20
- vsri.u32 q4, q9, #20
-
- veor q8, q5, q10
- veor q9, q6, q11
- vshl.u32 q5, q8, #12
- vshl.u32 q6, q9, #12
- vsri.u32 q5, q8, #20
- vsri.u32 q6, q9, #20
-
- // x0 += x5, x15 = rotl32(x15 ^ x0, 8)
- // x1 += x6, x12 = rotl32(x12 ^ x1, 8)
- // x2 += x7, x13 = rotl32(x13 ^ x2, 8)
- // x3 += x4, x14 = rotl32(x14 ^ x3, 8)
- vadd.i32 q0, q0, q5
- vadd.i32 q1, q1, q6
- vadd.i32 q2, q2, q7
- vadd.i32 q3, q3, q4
-
- veor q8, q15, q0
- veor q9, q12, q1
- vshl.u32 q15, q8, #8
- vshl.u32 q12, q9, #8
- vsri.u32 q15, q8, #24
- vsri.u32 q12, q9, #24
-
- veor q8, q13, q2
- veor q9, q14, q3
- vshl.u32 q13, q8, #8
- vshl.u32 q14, q9, #8
- vsri.u32 q13, q8, #24
- vsri.u32 q14, q9, #24
-
- vld1.32 {q8-q9}, [sp, :256]
-
- // x10 += x15, x5 = rotl32(x5 ^ x10, 7)
- // x11 += x12, x6 = rotl32(x6 ^ x11, 7)
- // x8 += x13, x7 = rotl32(x7 ^ x8, 7)
- // x9 += x14, x4 = rotl32(x4 ^ x9, 7)
- vadd.i32 q10, q10, q15
- vadd.i32 q11, q11, q12
- vadd.i32 q8, q8, q13
- vadd.i32 q9, q9, q14
-
- vst1.32 {q8-q9}, [sp, :256]
-
- veor q8, q7, q8
- veor q9, q4, q9
- vshl.u32 q7, q8, #7
- vshl.u32 q4, q9, #7
- vsri.u32 q7, q8, #25
- vsri.u32 q4, q9, #25
-
- veor q8, q5, q10
- veor q9, q6, q11
- vshl.u32 q5, q8, #7
- vshl.u32 q6, q9, #7
- vsri.u32 q5, q8, #25
- vsri.u32 q6, q9, #25
-
- subs r3, r3, #1
- beq 0f
-
- vld1.32 {q8-q9}, [sp, :256]
- b .Ldoubleround4
-
- // x0[0-3] += s0[0]
- // x1[0-3] += s0[1]
- // x2[0-3] += s0[2]
- // x3[0-3] += s0[3]
-0: ldmia r0!, {r3-r6}
- vdup.32 q8, r3
- vdup.32 q9, r4
- vadd.i32 q0, q0, q8
- vadd.i32 q1, q1, q9
- vdup.32 q8, r5
- vdup.32 q9, r6
- vadd.i32 q2, q2, q8
- vadd.i32 q3, q3, q9
-
- // x4[0-3] += s1[0]
- // x5[0-3] += s1[1]
- // x6[0-3] += s1[2]
- // x7[0-3] += s1[3]
- ldmia r0!, {r3-r6}
- vdup.32 q8, r3
- vdup.32 q9, r4
- vadd.i32 q4, q4, q8
- vadd.i32 q5, q5, q9
- vdup.32 q8, r5
- vdup.32 q9, r6
- vadd.i32 q6, q6, q8
- vadd.i32 q7, q7, q9
-
- // interleave 32-bit words in state n, n+1
- vzip.32 q0, q1
- vzip.32 q2, q3
- vzip.32 q4, q5
- vzip.32 q6, q7
-
- // interleave 64-bit words in state n, n+2
- vswp d1, d4
- vswp d3, d6
- vswp d9, d12
- vswp d11, d14
-
- // xor with corresponding input, write to output
- vld1.8 {q8-q9}, [r2]!
- veor q8, q8, q0
- veor q9, q9, q4
- vst1.8 {q8-q9}, [r1]!
-
- vld1.32 {q8-q9}, [sp, :256]
-
- // x8[0-3] += s2[0]
- // x9[0-3] += s2[1]
- // x10[0-3] += s2[2]
- // x11[0-3] += s2[3]
- ldmia r0!, {r3-r6}
- vdup.32 q0, r3
- vdup.32 q4, r4
- vadd.i32 q8, q8, q0
- vadd.i32 q9, q9, q4
- vdup.32 q0, r5
- vdup.32 q4, r6
- vadd.i32 q10, q10, q0
- vadd.i32 q11, q11, q4
-
- // x12[0-3] += s3[0]
- // x13[0-3] += s3[1]
- // x14[0-3] += s3[2]
- // x15[0-3] += s3[3]
- ldmia r0!, {r3-r6}
- vdup.32 q0, r3
- vdup.32 q4, r4
- adr r3, CTRINC
- vadd.i32 q12, q12, q0
- vld1.32 {q0}, [r3, :128]
- vadd.i32 q13, q13, q4
- vadd.i32 q12, q12, q0 // x12 += counter values 0-3
-
- vdup.32 q0, r5
- vdup.32 q4, r6
- vadd.i32 q14, q14, q0
- vadd.i32 q15, q15, q4
-
- // interleave 32-bit words in state n, n+1
- vzip.32 q8, q9
- vzip.32 q10, q11
- vzip.32 q12, q13
- vzip.32 q14, q15
-
- // interleave 64-bit words in state n, n+2
- vswp d17, d20
- vswp d19, d22
- vswp d25, d28
- vswp d27, d30
-
- vmov q4, q1
-
- vld1.8 {q0-q1}, [r2]!
- veor q0, q0, q8
- veor q1, q1, q12
- vst1.8 {q0-q1}, [r1]!
-
- vld1.8 {q0-q1}, [r2]!
- veor q0, q0, q2
- veor q1, q1, q6
- vst1.8 {q0-q1}, [r1]!
-
- vld1.8 {q0-q1}, [r2]!
- veor q0, q0, q10
- veor q1, q1, q14
- vst1.8 {q0-q1}, [r1]!
-
- vld1.8 {q0-q1}, [r2]!
- veor q0, q0, q4
- veor q1, q1, q5
- vst1.8 {q0-q1}, [r1]!
-
- vld1.8 {q0-q1}, [r2]!
- veor q0, q0, q9
- veor q1, q1, q13
- vst1.8 {q0-q1}, [r1]!
-
- vld1.8 {q0-q1}, [r2]!
- veor q0, q0, q3
- veor q1, q1, q7
- vst1.8 {q0-q1}, [r1]!
-
- vld1.8 {q0-q1}, [r2]
- veor q0, q0, q11
- veor q1, q1, q15
- vst1.8 {q0-q1}, [r1]
-
- mov sp, ip
- pop {r4-r6, pc}
-ENDPROC(chacha20_4block_xor_neon)
-
- .align 4
-CTRINC: .word 0, 1, 2, 3
diff --git a/arch/arm/crypto/chacha20-neon-glue.c b/arch/arm/crypto/chacha20-neon-glue.c
deleted file mode 100644
index 59a7be0..0000000
--- a/arch/arm/crypto/chacha20-neon-glue.c
+++ /dev/null
@@ -1,127 +0,0 @@
-/*
- * ChaCha20 256-bit cipher algorithm, RFC7539, ARM NEON functions
- *
- * Copyright (C) 2016 Linaro, Ltd. <ard.biesheuvel@linaro.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Based on:
- * ChaCha20 256-bit cipher algorithm, RFC7539, SIMD glue code
- *
- * Copyright (C) 2015 Martin Willi
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#include <crypto/algapi.h>
-#include <crypto/chacha20.h>
-#include <crypto/internal/skcipher.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-
-#include <asm/hwcap.h>
-#include <asm/neon.h>
-#include <asm/simd.h>
-
-asmlinkage void chacha20_block_xor_neon(u32 *state, u8 *dst, const u8 *src);
-asmlinkage void chacha20_4block_xor_neon(u32 *state, u8 *dst, const u8 *src);
-
-static void chacha20_doneon(u32 *state, u8 *dst, const u8 *src,
- unsigned int bytes)
-{
- u8 buf[CHACHA20_BLOCK_SIZE];
-
- while (bytes >= CHACHA20_BLOCK_SIZE * 4) {
- chacha20_4block_xor_neon(state, dst, src);
- bytes -= CHACHA20_BLOCK_SIZE * 4;
- src += CHACHA20_BLOCK_SIZE * 4;
- dst += CHACHA20_BLOCK_SIZE * 4;
- state[12] += 4;
- }
- while (bytes >= CHACHA20_BLOCK_SIZE) {
- chacha20_block_xor_neon(state, dst, src);
- bytes -= CHACHA20_BLOCK_SIZE;
- src += CHACHA20_BLOCK_SIZE;
- dst += CHACHA20_BLOCK_SIZE;
- state[12]++;
- }
- if (bytes) {
- memcpy(buf, src, bytes);
- chacha20_block_xor_neon(state, buf, buf);
- memcpy(dst, buf, bytes);
- }
-}
-
-static int chacha20_neon(struct skcipher_request *req)
-{
- struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
- struct chacha20_ctx *ctx = crypto_skcipher_ctx(tfm);
- struct skcipher_walk walk;
- u32 state[16];
- int err;
-
- if (req->cryptlen <= CHACHA20_BLOCK_SIZE || !may_use_simd())
- return crypto_chacha20_crypt(req);
-
- err = skcipher_walk_virt(&walk, req, true);
-
- crypto_chacha20_init(state, ctx, walk.iv);
-
- kernel_neon_begin();
- while (walk.nbytes > 0) {
- unsigned int nbytes = walk.nbytes;
-
- if (nbytes < walk.total)
- nbytes = round_down(nbytes, walk.stride);
-
- chacha20_doneon(state, walk.dst.virt.addr, walk.src.virt.addr,
- nbytes);
- err = skcipher_walk_done(&walk, walk.nbytes - nbytes);
- }
- kernel_neon_end();
-
- return err;
-}
-
-static struct skcipher_alg alg = {
- .base.cra_name = "chacha20",
- .base.cra_driver_name = "chacha20-neon",
- .base.cra_priority = 300,
- .base.cra_blocksize = 1,
- .base.cra_ctxsize = sizeof(struct chacha20_ctx),
- .base.cra_module = THIS_MODULE,
-
- .min_keysize = CHACHA20_KEY_SIZE,
- .max_keysize = CHACHA20_KEY_SIZE,
- .ivsize = CHACHA20_IV_SIZE,
- .chunksize = CHACHA20_BLOCK_SIZE,
- .walksize = 4 * CHACHA20_BLOCK_SIZE,
- .setkey = crypto_chacha20_setkey,
- .encrypt = chacha20_neon,
- .decrypt = chacha20_neon,
-};
-
-static int __init chacha20_simd_mod_init(void)
-{
- if (!(elf_hwcap & HWCAP_NEON))
- return -ENODEV;
-
- return crypto_register_skcipher(&alg);
-}
-
-static void __exit chacha20_simd_mod_fini(void)
-{
- crypto_unregister_skcipher(&alg);
-}
-
-module_init(chacha20_simd_mod_init);
-module_exit(chacha20_simd_mod_fini);
-
-MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS_CRYPTO("chacha20");
diff --git a/arch/arm/crypto/curve25519-core.S b/arch/arm/crypto/curve25519-core.S
new file mode 100644
index 0000000..be18af5
--- /dev/null
+++ b/arch/arm/crypto/curve25519-core.S
@@ -0,0 +1,2062 @@
+/* SPDX-License-Identifier: GPL-2.0 OR MIT */
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ *
+ * Based on public domain code from Daniel J. Bernstein and Peter Schwabe. This
+ * began from SUPERCOP's curve25519/neon2/scalarmult.s, but has subsequently been
+ * manually reworked for use in kernel space.
+ */
+
+#include <linux/linkage.h>
+
+.text
+.fpu neon
+.arch armv7-a
+.align 4
+
+ENTRY(curve25519_neon)
+ push {r4-r11, lr}
+ mov ip, sp
+ sub r3, sp, #704
+ and r3, r3, #0xfffffff0
+ mov sp, r3
+ movw r4, #0
+ movw r5, #254
+ vmov.i32 q0, #1
+ vshr.u64 q1, q0, #7
+ vshr.u64 q0, q0, #8
+ vmov.i32 d4, #19
+ vmov.i32 d5, #38
+ add r6, sp, #480
+ vst1.8 {d2-d3}, [r6, : 128]!
+ vst1.8 {d0-d1}, [r6, : 128]!
+ vst1.8 {d4-d5}, [r6, : 128]
+ add r6, r3, #0
+ vmov.i32 q2, #0
+ vst1.8 {d4-d5}, [r6, : 128]!
+ vst1.8 {d4-d5}, [r6, : 128]!
+ vst1.8 d4, [r6, : 64]
+ add r6, r3, #0
+ movw r7, #960
+ sub r7, r7, #2
+ neg r7, r7
+ sub r7, r7, r7, LSL #7
+ str r7, [r6]
+ add r6, sp, #672
+ vld1.8 {d4-d5}, [r1]!
+ vld1.8 {d6-d7}, [r1]
+ vst1.8 {d4-d5}, [r6, : 128]!
+ vst1.8 {d6-d7}, [r6, : 128]
+ sub r1, r6, #16
+ ldrb r6, [r1]
+ and r6, r6, #248
+ strb r6, [r1]
+ ldrb r6, [r1, #31]
+ and r6, r6, #127
+ orr r6, r6, #64
+ strb r6, [r1, #31]
+ vmov.i64 q2, #0xffffffff
+ vshr.u64 q3, q2, #7
+ vshr.u64 q2, q2, #6
+ vld1.8 {d8}, [r2]
+ vld1.8 {d10}, [r2]
+ add r2, r2, #6
+ vld1.8 {d12}, [r2]
+ vld1.8 {d14}, [r2]
+ add r2, r2, #6
+ vld1.8 {d16}, [r2]
+ add r2, r2, #4
+ vld1.8 {d18}, [r2]
+ vld1.8 {d20}, [r2]
+ add r2, r2, #6
+ vld1.8 {d22}, [r2]
+ add r2, r2, #2
+ vld1.8 {d24}, [r2]
+ vld1.8 {d26}, [r2]
+ vshr.u64 q5, q5, #26
+ vshr.u64 q6, q6, #3
+ vshr.u64 q7, q7, #29
+ vshr.u64 q8, q8, #6
+ vshr.u64 q10, q10, #25
+ vshr.u64 q11, q11, #3
+ vshr.u64 q12, q12, #12
+ vshr.u64 q13, q13, #38
+ vand q4, q4, q2
+ vand q6, q6, q2
+ vand q8, q8, q2
+ vand q10, q10, q2
+ vand q2, q12, q2
+ vand q5, q5, q3
+ vand q7, q7, q3
+ vand q9, q9, q3
+ vand q11, q11, q3
+ vand q3, q13, q3
+ add r2, r3, #48
+ vadd.i64 q12, q4, q1
+ vadd.i64 q13, q10, q1
+ vshr.s64 q12, q12, #26
+ vshr.s64 q13, q13, #26
+ vadd.i64 q5, q5, q12
+ vshl.i64 q12, q12, #26
+ vadd.i64 q14, q5, q0
+ vadd.i64 q11, q11, q13
+ vshl.i64 q13, q13, #26
+ vadd.i64 q15, q11, q0
+ vsub.i64 q4, q4, q12
+ vshr.s64 q12, q14, #25
+ vsub.i64 q10, q10, q13
+ vshr.s64 q13, q15, #25
+ vadd.i64 q6, q6, q12
+ vshl.i64 q12, q12, #25
+ vadd.i64 q14, q6, q1
+ vadd.i64 q2, q2, q13
+ vsub.i64 q5, q5, q12
+ vshr.s64 q12, q14, #26
+ vshl.i64 q13, q13, #25
+ vadd.i64 q14, q2, q1
+ vadd.i64 q7, q7, q12
+ vshl.i64 q12, q12, #26
+ vadd.i64 q15, q7, q0
+ vsub.i64 q11, q11, q13
+ vshr.s64 q13, q14, #26
+ vsub.i64 q6, q6, q12
+ vshr.s64 q12, q15, #25
+ vadd.i64 q3, q3, q13
+ vshl.i64 q13, q13, #26
+ vadd.i64 q14, q3, q0
+ vadd.i64 q8, q8, q12
+ vshl.i64 q12, q12, #25
+ vadd.i64 q15, q8, q1
+ add r2, r2, #8
+ vsub.i64 q2, q2, q13
+ vshr.s64 q13, q14, #25
+ vsub.i64 q7, q7, q12
+ vshr.s64 q12, q15, #26
+ vadd.i64 q14, q13, q13
+ vadd.i64 q9, q9, q12
+ vtrn.32 d12, d14
+ vshl.i64 q12, q12, #26
+ vtrn.32 d13, d15
+ vadd.i64 q0, q9, q0
+ vadd.i64 q4, q4, q14
+ vst1.8 d12, [r2, : 64]!
+ vshl.i64 q6, q13, #4
+ vsub.i64 q7, q8, q12
+ vshr.s64 q0, q0, #25
+ vadd.i64 q4, q4, q6
+ vadd.i64 q6, q10, q0
+ vshl.i64 q0, q0, #25
+ vadd.i64 q8, q6, q1
+ vadd.i64 q4, q4, q13
+ vshl.i64 q10, q13, #25
+ vadd.i64 q1, q4, q1
+ vsub.i64 q0, q9, q0
+ vshr.s64 q8, q8, #26
+ vsub.i64 q3, q3, q10
+ vtrn.32 d14, d0
+ vshr.s64 q1, q1, #26
+ vtrn.32 d15, d1
+ vadd.i64 q0, q11, q8
+ vst1.8 d14, [r2, : 64]
+ vshl.i64 q7, q8, #26
+ vadd.i64 q5, q5, q1
+ vtrn.32 d4, d6
+ vshl.i64 q1, q1, #26
+ vtrn.32 d5, d7
+ vsub.i64 q3, q6, q7
+ add r2, r2, #16
+ vsub.i64 q1, q4, q1
+ vst1.8 d4, [r2, : 64]
+ vtrn.32 d6, d0
+ vtrn.32 d7, d1
+ sub r2, r2, #8
+ vtrn.32 d2, d10
+ vtrn.32 d3, d11
+ vst1.8 d6, [r2, : 64]
+ sub r2, r2, #24
+ vst1.8 d2, [r2, : 64]
+ add r2, r3, #96
+ vmov.i32 q0, #0
+ vmov.i64 d2, #0xff
+ vmov.i64 d3, #0
+ vshr.u32 q1, q1, #7
+ vst1.8 {d2-d3}, [r2, : 128]!
+ vst1.8 {d0-d1}, [r2, : 128]!
+ vst1.8 d0, [r2, : 64]
+ add r2, r3, #144
+ vmov.i32 q0, #0
+ vst1.8 {d0-d1}, [r2, : 128]!
+ vst1.8 {d0-d1}, [r2, : 128]!
+ vst1.8 d0, [r2, : 64]
+ add r2, r3, #240
+ vmov.i32 q0, #0
+ vmov.i64 d2, #0xff
+ vmov.i64 d3, #0
+ vshr.u32 q1, q1, #7
+ vst1.8 {d2-d3}, [r2, : 128]!
+ vst1.8 {d0-d1}, [r2, : 128]!
+ vst1.8 d0, [r2, : 64]
+ add r2, r3, #48
+ add r6, r3, #192
+ vld1.8 {d0-d1}, [r2, : 128]!
+ vld1.8 {d2-d3}, [r2, : 128]!
+ vld1.8 {d4}, [r2, : 64]
+ vst1.8 {d0-d1}, [r6, : 128]!
+ vst1.8 {d2-d3}, [r6, : 128]!
+ vst1.8 d4, [r6, : 64]
+.Lmainloop:
+ mov r2, r5, LSR #3
+ and r6, r5, #7
+ ldrb r2, [r1, r2]
+ mov r2, r2, LSR r6
+ and r2, r2, #1
+ str r5, [sp, #456]
+ eor r4, r4, r2
+ str r2, [sp, #460]
+ neg r2, r4
+ add r4, r3, #96
+ add r5, r3, #192
+ add r6, r3, #144
+ vld1.8 {d8-d9}, [r4, : 128]!
+ add r7, r3, #240
+ vld1.8 {d10-d11}, [r5, : 128]!
+ veor q6, q4, q5
+ vld1.8 {d14-d15}, [r6, : 128]!
+ vdup.i32 q8, r2
+ vld1.8 {d18-d19}, [r7, : 128]!
+ veor q10, q7, q9
+ vld1.8 {d22-d23}, [r4, : 128]!
+ vand q6, q6, q8
+ vld1.8 {d24-d25}, [r5, : 128]!
+ vand q10, q10, q8
+ vld1.8 {d26-d27}, [r6, : 128]!
+ veor q4, q4, q6
+ vld1.8 {d28-d29}, [r7, : 128]!
+ veor q5, q5, q6
+ vld1.8 {d0}, [r4, : 64]
+ veor q6, q7, q10
+ vld1.8 {d2}, [r5, : 64]
+ veor q7, q9, q10
+ vld1.8 {d4}, [r6, : 64]
+ veor q9, q11, q12
+ vld1.8 {d6}, [r7, : 64]
+ veor q10, q0, q1
+ sub r2, r4, #32
+ vand q9, q9, q8
+ sub r4, r5, #32
+ vand q10, q10, q8
+ sub r5, r6, #32
+ veor q11, q11, q9
+ sub r6, r7, #32
+ veor q0, q0, q10
+ veor q9, q12, q9
+ veor q1, q1, q10
+ veor q10, q13, q14
+ veor q12, q2, q3
+ vand q10, q10, q8
+ vand q8, q12, q8
+ veor q12, q13, q10
+ veor q2, q2, q8
+ veor q10, q14, q10
+ veor q3, q3, q8
+ vadd.i32 q8, q4, q6
+ vsub.i32 q4, q4, q6
+ vst1.8 {d16-d17}, [r2, : 128]!
+ vadd.i32 q6, q11, q12
+ vst1.8 {d8-d9}, [r5, : 128]!
+ vsub.i32 q4, q11, q12
+ vst1.8 {d12-d13}, [r2, : 128]!
+ vadd.i32 q6, q0, q2
+ vst1.8 {d8-d9}, [r5, : 128]!
+ vsub.i32 q0, q0, q2
+ vst1.8 d12, [r2, : 64]
+ vadd.i32 q2, q5, q7
+ vst1.8 d0, [r5, : 64]
+ vsub.i32 q0, q5, q7
+ vst1.8 {d4-d5}, [r4, : 128]!
+ vadd.i32 q2, q9, q10
+ vst1.8 {d0-d1}, [r6, : 128]!
+ vsub.i32 q0, q9, q10
+ vst1.8 {d4-d5}, [r4, : 128]!
+ vadd.i32 q2, q1, q3
+ vst1.8 {d0-d1}, [r6, : 128]!
+ vsub.i32 q0, q1, q3
+ vst1.8 d4, [r4, : 64]
+ vst1.8 d0, [r6, : 64]
+ add r2, sp, #512
+ add r4, r3, #96
+ add r5, r3, #144
+ vld1.8 {d0-d1}, [r2, : 128]
+ vld1.8 {d2-d3}, [r4, : 128]!
+ vld1.8 {d4-d5}, [r5, : 128]!
+ vzip.i32 q1, q2
+ vld1.8 {d6-d7}, [r4, : 128]!
+ vld1.8 {d8-d9}, [r5, : 128]!
+ vshl.i32 q5, q1, #1
+ vzip.i32 q3, q4
+ vshl.i32 q6, q2, #1
+ vld1.8 {d14}, [r4, : 64]
+ vshl.i32 q8, q3, #1
+ vld1.8 {d15}, [r5, : 64]
+ vshl.i32 q9, q4, #1
+ vmul.i32 d21, d7, d1
+ vtrn.32 d14, d15
+ vmul.i32 q11, q4, q0
+ vmul.i32 q0, q7, q0
+ vmull.s32 q12, d2, d2
+ vmlal.s32 q12, d11, d1
+ vmlal.s32 q12, d12, d0
+ vmlal.s32 q12, d13, d23
+ vmlal.s32 q12, d16, d22
+ vmlal.s32 q12, d7, d21
+ vmull.s32 q10, d2, d11
+ vmlal.s32 q10, d4, d1
+ vmlal.s32 q10, d13, d0
+ vmlal.s32 q10, d6, d23
+ vmlal.s32 q10, d17, d22
+ vmull.s32 q13, d10, d4
+ vmlal.s32 q13, d11, d3
+ vmlal.s32 q13, d13, d1
+ vmlal.s32 q13, d16, d0
+ vmlal.s32 q13, d17, d23
+ vmlal.s32 q13, d8, d22
+ vmull.s32 q1, d10, d5
+ vmlal.s32 q1, d11, d4
+ vmlal.s32 q1, d6, d1
+ vmlal.s32 q1, d17, d0
+ vmlal.s32 q1, d8, d23
+ vmull.s32 q14, d10, d6
+ vmlal.s32 q14, d11, d13
+ vmlal.s32 q14, d4, d4
+ vmlal.s32 q14, d17, d1
+ vmlal.s32 q14, d18, d0
+ vmlal.s32 q14, d9, d23
+ vmull.s32 q11, d10, d7
+ vmlal.s32 q11, d11, d6
+ vmlal.s32 q11, d12, d5
+ vmlal.s32 q11, d8, d1
+ vmlal.s32 q11, d19, d0
+ vmull.s32 q15, d10, d8
+ vmlal.s32 q15, d11, d17
+ vmlal.s32 q15, d12, d6
+ vmlal.s32 q15, d13, d5
+ vmlal.s32 q15, d19, d1
+ vmlal.s32 q15, d14, d0
+ vmull.s32 q2, d10, d9
+ vmlal.s32 q2, d11, d8
+ vmlal.s32 q2, d12, d7
+ vmlal.s32 q2, d13, d6
+ vmlal.s32 q2, d14, d1
+ vmull.s32 q0, d15, d1
+ vmlal.s32 q0, d10, d14
+ vmlal.s32 q0, d11, d19
+ vmlal.s32 q0, d12, d8
+ vmlal.s32 q0, d13, d17
+ vmlal.s32 q0, d6, d6
+ add r2, sp, #480
+ vld1.8 {d18-d19}, [r2, : 128]!
+ vmull.s32 q3, d16, d7
+ vmlal.s32 q3, d10, d15
+ vmlal.s32 q3, d11, d14
+ vmlal.s32 q3, d12, d9
+ vmlal.s32 q3, d13, d8
+ vld1.8 {d8-d9}, [r2, : 128]
+ vadd.i64 q5, q12, q9
+ vadd.i64 q6, q15, q9
+ vshr.s64 q5, q5, #26
+ vshr.s64 q6, q6, #26
+ vadd.i64 q7, q10, q5
+ vshl.i64 q5, q5, #26
+ vadd.i64 q8, q7, q4
+ vadd.i64 q2, q2, q6
+ vshl.i64 q6, q6, #26
+ vadd.i64 q10, q2, q4
+ vsub.i64 q5, q12, q5
+ vshr.s64 q8, q8, #25
+ vsub.i64 q6, q15, q6
+ vshr.s64 q10, q10, #25
+ vadd.i64 q12, q13, q8
+ vshl.i64 q8, q8, #25
+ vadd.i64 q13, q12, q9
+ vadd.i64 q0, q0, q10
+ vsub.i64 q7, q7, q8
+ vshr.s64 q8, q13, #26
+ vshl.i64 q10, q10, #25
+ vadd.i64 q13, q0, q9
+ vadd.i64 q1, q1, q8
+ vshl.i64 q8, q8, #26
+ vadd.i64 q15, q1, q4
+ vsub.i64 q2, q2, q10
+ vshr.s64 q10, q13, #26
+ vsub.i64 q8, q12, q8
+ vshr.s64 q12, q15, #25
+ vadd.i64 q3, q3, q10
+ vshl.i64 q10, q10, #26
+ vadd.i64 q13, q3, q4
+ vadd.i64 q14, q14, q12
+ add r2, r3, #288
+ vshl.i64 q12, q12, #25
+ add r4, r3, #336
+ vadd.i64 q15, q14, q9
+ add r2, r2, #8
+ vsub.i64 q0, q0, q10
+ add r4, r4, #8
+ vshr.s64 q10, q13, #25
+ vsub.i64 q1, q1, q12
+ vshr.s64 q12, q15, #26
+ vadd.i64 q13, q10, q10
+ vadd.i64 q11, q11, q12
+ vtrn.32 d16, d2
+ vshl.i64 q12, q12, #26
+ vtrn.32 d17, d3
+ vadd.i64 q1, q11, q4
+ vadd.i64 q4, q5, q13
+ vst1.8 d16, [r2, : 64]!
+ vshl.i64 q5, q10, #4
+ vst1.8 d17, [r4, : 64]!
+ vsub.i64 q8, q14, q12
+ vshr.s64 q1, q1, #25
+ vadd.i64 q4, q4, q5
+ vadd.i64 q5, q6, q1
+ vshl.i64 q1, q1, #25
+ vadd.i64 q6, q5, q9
+ vadd.i64 q4, q4, q10
+ vshl.i64 q10, q10, #25
+ vadd.i64 q9, q4, q9
+ vsub.i64 q1, q11, q1
+ vshr.s64 q6, q6, #26
+ vsub.i64 q3, q3, q10
+ vtrn.32 d16, d2
+ vshr.s64 q9, q9, #26
+ vtrn.32 d17, d3
+ vadd.i64 q1, q2, q6
+ vst1.8 d16, [r2, : 64]
+ vshl.i64 q2, q6, #26
+ vst1.8 d17, [r4, : 64]
+ vadd.i64 q6, q7, q9
+ vtrn.32 d0, d6
+ vshl.i64 q7, q9, #26
+ vtrn.32 d1, d7
+ vsub.i64 q2, q5, q2
+ add r2, r2, #16
+ vsub.i64 q3, q4, q7
+ vst1.8 d0, [r2, : 64]
+ add r4, r4, #16
+ vst1.8 d1, [r4, : 64]
+ vtrn.32 d4, d2
+ vtrn.32 d5, d3
+ sub r2, r2, #8
+ sub r4, r4, #8
+ vtrn.32 d6, d12
+ vtrn.32 d7, d13
+ vst1.8 d4, [r2, : 64]
+ vst1.8 d5, [r4, : 64]
+ sub r2, r2, #24
+ sub r4, r4, #24
+ vst1.8 d6, [r2, : 64]
+ vst1.8 d7, [r4, : 64]
+ add r2, r3, #240
+ add r4, r3, #96
+ vld1.8 {d0-d1}, [r4, : 128]!
+ vld1.8 {d2-d3}, [r4, : 128]!
+ vld1.8 {d4}, [r4, : 64]
+ add r4, r3, #144
+ vld1.8 {d6-d7}, [r4, : 128]!
+ vtrn.32 q0, q3
+ vld1.8 {d8-d9}, [r4, : 128]!
+ vshl.i32 q5, q0, #4
+ vtrn.32 q1, q4
+ vshl.i32 q6, q3, #4
+ vadd.i32 q5, q5, q0
+ vadd.i32 q6, q6, q3
+ vshl.i32 q7, q1, #4
+ vld1.8 {d5}, [r4, : 64]
+ vshl.i32 q8, q4, #4
+ vtrn.32 d4, d5
+ vadd.i32 q7, q7, q1
+ vadd.i32 q8, q8, q4
+ vld1.8 {d18-d19}, [r2, : 128]!
+ vshl.i32 q10, q2, #4
+ vld1.8 {d22-d23}, [r2, : 128]!
+ vadd.i32 q10, q10, q2
+ vld1.8 {d24}, [r2, : 64]
+ vadd.i32 q5, q5, q0
+ add r2, r3, #192
+ vld1.8 {d26-d27}, [r2, : 128]!
+ vadd.i32 q6, q6, q3
+ vld1.8 {d28-d29}, [r2, : 128]!
+ vadd.i32 q8, q8, q4
+ vld1.8 {d25}, [r2, : 64]
+ vadd.i32 q10, q10, q2
+ vtrn.32 q9, q13
+ vadd.i32 q7, q7, q1
+ vadd.i32 q5, q5, q0
+ vtrn.32 q11, q14
+ vadd.i32 q6, q6, q3
+ add r2, sp, #528
+ vadd.i32 q10, q10, q2
+ vtrn.32 d24, d25
+ vst1.8 {d12-d13}, [r2, : 128]!
+ vshl.i32 q6, q13, #1
+ vst1.8 {d20-d21}, [r2, : 128]!
+ vshl.i32 q10, q14, #1
+ vst1.8 {d12-d13}, [r2, : 128]!
+ vshl.i32 q15, q12, #1
+ vadd.i32 q8, q8, q4
+ vext.32 d10, d31, d30, #0
+ vadd.i32 q7, q7, q1
+ vst1.8 {d16-d17}, [r2, : 128]!
+ vmull.s32 q8, d18, d5
+ vmlal.s32 q8, d26, d4
+ vmlal.s32 q8, d19, d9
+ vmlal.s32 q8, d27, d3
+ vmlal.s32 q8, d22, d8
+ vmlal.s32 q8, d28, d2
+ vmlal.s32 q8, d23, d7
+ vmlal.s32 q8, d29, d1
+ vmlal.s32 q8, d24, d6
+ vmlal.s32 q8, d25, d0
+ vst1.8 {d14-d15}, [r2, : 128]!
+ vmull.s32 q2, d18, d4
+ vmlal.s32 q2, d12, d9
+ vmlal.s32 q2, d13, d8
+ vmlal.s32 q2, d19, d3
+ vmlal.s32 q2, d22, d2
+ vmlal.s32 q2, d23, d1
+ vmlal.s32 q2, d24, d0
+ vst1.8 {d20-d21}, [r2, : 128]!
+ vmull.s32 q7, d18, d9
+ vmlal.s32 q7, d26, d3
+ vmlal.s32 q7, d19, d8
+ vmlal.s32 q7, d27, d2
+ vmlal.s32 q7, d22, d7
+ vmlal.s32 q7, d28, d1
+ vmlal.s32 q7, d23, d6
+ vmlal.s32 q7, d29, d0
+ vst1.8 {d10-d11}, [r2, : 128]!
+ vmull.s32 q5, d18, d3
+ vmlal.s32 q5, d19, d2
+ vmlal.s32 q5, d22, d1
+ vmlal.s32 q5, d23, d0
+ vmlal.s32 q5, d12, d8
+ vst1.8 {d16-d17}, [r2, : 128]
+ vmull.s32 q4, d18, d8
+ vmlal.s32 q4, d26, d2
+ vmlal.s32 q4, d19, d7
+ vmlal.s32 q4, d27, d1
+ vmlal.s32 q4, d22, d6
+ vmlal.s32 q4, d28, d0
+ vmull.s32 q8, d18, d7
+ vmlal.s32 q8, d26, d1
+ vmlal.s32 q8, d19, d6
+ vmlal.s32 q8, d27, d0
+ add r2, sp, #544
+ vld1.8 {d20-d21}, [r2, : 128]
+ vmlal.s32 q7, d24, d21
+ vmlal.s32 q7, d25, d20
+ vmlal.s32 q4, d23, d21
+ vmlal.s32 q4, d29, d20
+ vmlal.s32 q8, d22, d21
+ vmlal.s32 q8, d28, d20
+ vmlal.s32 q5, d24, d20
+ vst1.8 {d14-d15}, [r2, : 128]
+ vmull.s32 q7, d18, d6
+ vmlal.s32 q7, d26, d0
+ add r2, sp, #624
+ vld1.8 {d30-d31}, [r2, : 128]
+ vmlal.s32 q2, d30, d21
+ vmlal.s32 q7, d19, d21
+ vmlal.s32 q7, d27, d20
+ add r2, sp, #592
+ vld1.8 {d26-d27}, [r2, : 128]
+ vmlal.s32 q4, d25, d27
+ vmlal.s32 q8, d29, d27
+ vmlal.s32 q8, d25, d26
+ vmlal.s32 q7, d28, d27
+ vmlal.s32 q7, d29, d26
+ add r2, sp, #576
+ vld1.8 {d28-d29}, [r2, : 128]
+ vmlal.s32 q4, d24, d29
+ vmlal.s32 q8, d23, d29
+ vmlal.s32 q8, d24, d28
+ vmlal.s32 q7, d22, d29
+ vmlal.s32 q7, d23, d28
+ vst1.8 {d8-d9}, [r2, : 128]
+ add r2, sp, #528
+ vld1.8 {d8-d9}, [r2, : 128]
+ vmlal.s32 q7, d24, d9
+ vmlal.s32 q7, d25, d31
+ vmull.s32 q1, d18, d2
+ vmlal.s32 q1, d19, d1
+ vmlal.s32 q1, d22, d0
+ vmlal.s32 q1, d24, d27
+ vmlal.s32 q1, d23, d20
+ vmlal.s32 q1, d12, d7
+ vmlal.s32 q1, d13, d6
+ vmull.s32 q6, d18, d1
+ vmlal.s32 q6, d19, d0
+ vmlal.s32 q6, d23, d27
+ vmlal.s32 q6, d22, d20
+ vmlal.s32 q6, d24, d26
+ vmull.s32 q0, d18, d0
+ vmlal.s32 q0, d22, d27
+ vmlal.s32 q0, d23, d26
+ vmlal.s32 q0, d24, d31
+ vmlal.s32 q0, d19, d20
+ add r2, sp, #608
+ vld1.8 {d18-d19}, [r2, : 128]
+ vmlal.s32 q2, d18, d7
+ vmlal.s32 q5, d18, d6
+ vmlal.s32 q1, d18, d21
+ vmlal.s32 q0, d18, d28
+ vmlal.s32 q6, d18, d29
+ vmlal.s32 q2, d19, d6
+ vmlal.s32 q5, d19, d21
+ vmlal.s32 q1, d19, d29
+ vmlal.s32 q0, d19, d9
+ vmlal.s32 q6, d19, d28
+ add r2, sp, #560
+ vld1.8 {d18-d19}, [r2, : 128]
+ add r2, sp, #480
+ vld1.8 {d22-d23}, [r2, : 128]
+ vmlal.s32 q5, d19, d7
+ vmlal.s32 q0, d18, d21
+ vmlal.s32 q0, d19, d29
+ vmlal.s32 q6, d18, d6
+ add r2, sp, #496
+ vld1.8 {d6-d7}, [r2, : 128]
+ vmlal.s32 q6, d19, d21
+ add r2, sp, #544
+ vld1.8 {d18-d19}, [r2, : 128]
+ vmlal.s32 q0, d30, d8
+ add r2, sp, #640
+ vld1.8 {d20-d21}, [r2, : 128]
+ vmlal.s32 q5, d30, d29
+ add r2, sp, #576
+ vld1.8 {d24-d25}, [r2, : 128]
+ vmlal.s32 q1, d30, d28
+ vadd.i64 q13, q0, q11
+ vadd.i64 q14, q5, q11
+ vmlal.s32 q6, d30, d9
+ vshr.s64 q4, q13, #26
+ vshr.s64 q13, q14, #26
+ vadd.i64 q7, q7, q4
+ vshl.i64 q4, q4, #26
+ vadd.i64 q14, q7, q3
+ vadd.i64 q9, q9, q13
+ vshl.i64 q13, q13, #26
+ vadd.i64 q15, q9, q3
+ vsub.i64 q0, q0, q4
+ vshr.s64 q4, q14, #25
+ vsub.i64 q5, q5, q13
+ vshr.s64 q13, q15, #25
+ vadd.i64 q6, q6, q4
+ vshl.i64 q4, q4, #25
+ vadd.i64 q14, q6, q11
+ vadd.i64 q2, q2, q13
+ vsub.i64 q4, q7, q4
+ vshr.s64 q7, q14, #26
+ vshl.i64 q13, q13, #25
+ vadd.i64 q14, q2, q11
+ vadd.i64 q8, q8, q7
+ vshl.i64 q7, q7, #26
+ vadd.i64 q15, q8, q3
+ vsub.i64 q9, q9, q13
+ vshr.s64 q13, q14, #26
+ vsub.i64 q6, q6, q7
+ vshr.s64 q7, q15, #25
+ vadd.i64 q10, q10, q13
+ vshl.i64 q13, q13, #26
+ vadd.i64 q14, q10, q3
+ vadd.i64 q1, q1, q7
+ add r2, r3, #144
+ vshl.i64 q7, q7, #25
+ add r4, r3, #96
+ vadd.i64 q15, q1, q11
+ add r2, r2, #8
+ vsub.i64 q2, q2, q13
+ add r4, r4, #8
+ vshr.s64 q13, q14, #25
+ vsub.i64 q7, q8, q7
+ vshr.s64 q8, q15, #26
+ vadd.i64 q14, q13, q13
+ vadd.i64 q12, q12, q8
+ vtrn.32 d12, d14
+ vshl.i64 q8, q8, #26
+ vtrn.32 d13, d15
+ vadd.i64 q3, q12, q3
+ vadd.i64 q0, q0, q14
+ vst1.8 d12, [r2, : 64]!
+ vshl.i64 q7, q13, #4
+ vst1.8 d13, [r4, : 64]!
+ vsub.i64 q1, q1, q8
+ vshr.s64 q3, q3, #25
+ vadd.i64 q0, q0, q7
+ vadd.i64 q5, q5, q3
+ vshl.i64 q3, q3, #25
+ vadd.i64 q6, q5, q11
+ vadd.i64 q0, q0, q13
+ vshl.i64 q7, q13, #25
+ vadd.i64 q8, q0, q11
+ vsub.i64 q3, q12, q3
+ vshr.s64 q6, q6, #26
+ vsub.i64 q7, q10, q7
+ vtrn.32 d2, d6
+ vshr.s64 q8, q8, #26
+ vtrn.32 d3, d7
+ vadd.i64 q3, q9, q6
+ vst1.8 d2, [r2, : 64]
+ vshl.i64 q6, q6, #26
+ vst1.8 d3, [r4, : 64]
+ vadd.i64 q1, q4, q8
+ vtrn.32 d4, d14
+ vshl.i64 q4, q8, #26
+ vtrn.32 d5, d15
+ vsub.i64 q5, q5, q6
+ add r2, r2, #16
+ vsub.i64 q0, q0, q4
+ vst1.8 d4, [r2, : 64]
+ add r4, r4, #16
+ vst1.8 d5, [r4, : 64]
+ vtrn.32 d10, d6
+ vtrn.32 d11, d7
+ sub r2, r2, #8
+ sub r4, r4, #8
+ vtrn.32 d0, d2
+ vtrn.32 d1, d3
+ vst1.8 d10, [r2, : 64]
+ vst1.8 d11, [r4, : 64]
+ sub r2, r2, #24
+ sub r4, r4, #24
+ vst1.8 d0, [r2, : 64]
+ vst1.8 d1, [r4, : 64]
+ add r2, r3, #288
+ add r4, r3, #336
+ vld1.8 {d0-d1}, [r2, : 128]!
+ vld1.8 {d2-d3}, [r4, : 128]!
+ vsub.i32 q0, q0, q1
+ vld1.8 {d2-d3}, [r2, : 128]!
+ vld1.8 {d4-d5}, [r4, : 128]!
+ vsub.i32 q1, q1, q2
+ add r5, r3, #240
+ vld1.8 {d4}, [r2, : 64]
+ vld1.8 {d6}, [r4, : 64]
+ vsub.i32 q2, q2, q3
+ vst1.8 {d0-d1}, [r5, : 128]!
+ vst1.8 {d2-d3}, [r5, : 128]!
+ vst1.8 d4, [r5, : 64]
+ add r2, r3, #144
+ add r4, r3, #96
+ add r5, r3, #144
+ add r6, r3, #192
+ vld1.8 {d0-d1}, [r2, : 128]!
+ vld1.8 {d2-d3}, [r4, : 128]!
+ vsub.i32 q2, q0, q1
+ vadd.i32 q0, q0, q1
+ vld1.8 {d2-d3}, [r2, : 128]!
+ vld1.8 {d6-d7}, [r4, : 128]!
+ vsub.i32 q4, q1, q3
+ vadd.i32 q1, q1, q3
+ vld1.8 {d6}, [r2, : 64]
+ vld1.8 {d10}, [r4, : 64]
+ vsub.i32 q6, q3, q5
+ vadd.i32 q3, q3, q5
+ vst1.8 {d4-d5}, [r5, : 128]!
+ vst1.8 {d0-d1}, [r6, : 128]!
+ vst1.8 {d8-d9}, [r5, : 128]!
+ vst1.8 {d2-d3}, [r6, : 128]!
+ vst1.8 d12, [r5, : 64]
+ vst1.8 d6, [r6, : 64]
+ add r2, r3, #0
+ add r4, r3, #240
+ vld1.8 {d0-d1}, [r4, : 128]!
+ vld1.8 {d2-d3}, [r4, : 128]!
+ vld1.8 {d4}, [r4, : 64]
+ add r4, r3, #336
+ vld1.8 {d6-d7}, [r4, : 128]!
+ vtrn.32 q0, q3
+ vld1.8 {d8-d9}, [r4, : 128]!
+ vshl.i32 q5, q0, #4
+ vtrn.32 q1, q4
+ vshl.i32 q6, q3, #4
+ vadd.i32 q5, q5, q0
+ vadd.i32 q6, q6, q3
+ vshl.i32 q7, q1, #4
+ vld1.8 {d5}, [r4, : 64]
+ vshl.i32 q8, q4, #4
+ vtrn.32 d4, d5
+ vadd.i32 q7, q7, q1
+ vadd.i32 q8, q8, q4
+ vld1.8 {d18-d19}, [r2, : 128]!
+ vshl.i32 q10, q2, #4
+ vld1.8 {d22-d23}, [r2, : 128]!
+ vadd.i32 q10, q10, q2
+ vld1.8 {d24}, [r2, : 64]
+ vadd.i32 q5, q5, q0
+ add r2, r3, #288
+ vld1.8 {d26-d27}, [r2, : 128]!
+ vadd.i32 q6, q6, q3
+ vld1.8 {d28-d29}, [r2, : 128]!
+ vadd.i32 q8, q8, q4
+ vld1.8 {d25}, [r2, : 64]
+ vadd.i32 q10, q10, q2
+ vtrn.32 q9, q13
+ vadd.i32 q7, q7, q1
+ vadd.i32 q5, q5, q0
+ vtrn.32 q11, q14
+ vadd.i32 q6, q6, q3
+ add r2, sp, #528
+ vadd.i32 q10, q10, q2
+ vtrn.32 d24, d25
+ vst1.8 {d12-d13}, [r2, : 128]!
+ vshl.i32 q6, q13, #1
+ vst1.8 {d20-d21}, [r2, : 128]!
+ vshl.i32 q10, q14, #1
+ vst1.8 {d12-d13}, [r2, : 128]!
+ vshl.i32 q15, q12, #1
+ vadd.i32 q8, q8, q4
+ vext.32 d10, d31, d30, #0
+ vadd.i32 q7, q7, q1
+ vst1.8 {d16-d17}, [r2, : 128]!
+ vmull.s32 q8, d18, d5
+ vmlal.s32 q8, d26, d4
+ vmlal.s32 q8, d19, d9
+ vmlal.s32 q8, d27, d3
+ vmlal.s32 q8, d22, d8
+ vmlal.s32 q8, d28, d2
+ vmlal.s32 q8, d23, d7
+ vmlal.s32 q8, d29, d1
+ vmlal.s32 q8, d24, d6
+ vmlal.s32 q8, d25, d0
+ vst1.8 {d14-d15}, [r2, : 128]!
+ vmull.s32 q2, d18, d4
+ vmlal.s32 q2, d12, d9
+ vmlal.s32 q2, d13, d8
+ vmlal.s32 q2, d19, d3
+ vmlal.s32 q2, d22, d2
+ vmlal.s32 q2, d23, d1
+ vmlal.s32 q2, d24, d0
+ vst1.8 {d20-d21}, [r2, : 128]!
+ vmull.s32 q7, d18, d9
+ vmlal.s32 q7, d26, d3
+ vmlal.s32 q7, d19, d8
+ vmlal.s32 q7, d27, d2
+ vmlal.s32 q7, d22, d7
+ vmlal.s32 q7, d28, d1
+ vmlal.s32 q7, d23, d6
+ vmlal.s32 q7, d29, d0
+ vst1.8 {d10-d11}, [r2, : 128]!
+ vmull.s32 q5, d18, d3
+ vmlal.s32 q5, d19, d2
+ vmlal.s32 q5, d22, d1
+ vmlal.s32 q5, d23, d0
+ vmlal.s32 q5, d12, d8
+ vst1.8 {d16-d17}, [r2, : 128]!
+ vmull.s32 q4, d18, d8
+ vmlal.s32 q4, d26, d2
+ vmlal.s32 q4, d19, d7
+ vmlal.s32 q4, d27, d1
+ vmlal.s32 q4, d22, d6
+ vmlal.s32 q4, d28, d0
+ vmull.s32 q8, d18, d7
+ vmlal.s32 q8, d26, d1
+ vmlal.s32 q8, d19, d6
+ vmlal.s32 q8, d27, d0
+ add r2, sp, #544
+ vld1.8 {d20-d21}, [r2, : 128]
+ vmlal.s32 q7, d24, d21
+ vmlal.s32 q7, d25, d20
+ vmlal.s32 q4, d23, d21
+ vmlal.s32 q4, d29, d20
+ vmlal.s32 q8, d22, d21
+ vmlal.s32 q8, d28, d20
+ vmlal.s32 q5, d24, d20
+ vst1.8 {d14-d15}, [r2, : 128]
+ vmull.s32 q7, d18, d6
+ vmlal.s32 q7, d26, d0
+ add r2, sp, #624
+ vld1.8 {d30-d31}, [r2, : 128]
+ vmlal.s32 q2, d30, d21
+ vmlal.s32 q7, d19, d21
+ vmlal.s32 q7, d27, d20
+ add r2, sp, #592
+ vld1.8 {d26-d27}, [r2, : 128]
+ vmlal.s32 q4, d25, d27
+ vmlal.s32 q8, d29, d27
+ vmlal.s32 q8, d25, d26
+ vmlal.s32 q7, d28, d27
+ vmlal.s32 q7, d29, d26
+ add r2, sp, #576
+ vld1.8 {d28-d29}, [r2, : 128]
+ vmlal.s32 q4, d24, d29
+ vmlal.s32 q8, d23, d29
+ vmlal.s32 q8, d24, d28
+ vmlal.s32 q7, d22, d29
+ vmlal.s32 q7, d23, d28
+ vst1.8 {d8-d9}, [r2, : 128]
+ add r2, sp, #528
+ vld1.8 {d8-d9}, [r2, : 128]
+ vmlal.s32 q7, d24, d9
+ vmlal.s32 q7, d25, d31
+ vmull.s32 q1, d18, d2
+ vmlal.s32 q1, d19, d1
+ vmlal.s32 q1, d22, d0
+ vmlal.s32 q1, d24, d27
+ vmlal.s32 q1, d23, d20
+ vmlal.s32 q1, d12, d7
+ vmlal.s32 q1, d13, d6
+ vmull.s32 q6, d18, d1
+ vmlal.s32 q6, d19, d0
+ vmlal.s32 q6, d23, d27
+ vmlal.s32 q6, d22, d20
+ vmlal.s32 q6, d24, d26
+ vmull.s32 q0, d18, d0
+ vmlal.s32 q0, d22, d27
+ vmlal.s32 q0, d23, d26
+ vmlal.s32 q0, d24, d31
+ vmlal.s32 q0, d19, d20
+ add r2, sp, #608
+ vld1.8 {d18-d19}, [r2, : 128]
+ vmlal.s32 q2, d18, d7
+ vmlal.s32 q5, d18, d6
+ vmlal.s32 q1, d18, d21
+ vmlal.s32 q0, d18, d28
+ vmlal.s32 q6, d18, d29
+ vmlal.s32 q2, d19, d6
+ vmlal.s32 q5, d19, d21
+ vmlal.s32 q1, d19, d29
+ vmlal.s32 q0, d19, d9
+ vmlal.s32 q6, d19, d28
+ add r2, sp, #560
+ vld1.8 {d18-d19}, [r2, : 128]
+ add r2, sp, #480
+ vld1.8 {d22-d23}, [r2, : 128]
+ vmlal.s32 q5, d19, d7
+ vmlal.s32 q0, d18, d21
+ vmlal.s32 q0, d19, d29
+ vmlal.s32 q6, d18, d6
+ add r2, sp, #496
+ vld1.8 {d6-d7}, [r2, : 128]
+ vmlal.s32 q6, d19, d21
+ add r2, sp, #544
+ vld1.8 {d18-d19}, [r2, : 128]
+ vmlal.s32 q0, d30, d8
+ add r2, sp, #640
+ vld1.8 {d20-d21}, [r2, : 128]
+ vmlal.s32 q5, d30, d29
+ add r2, sp, #576
+ vld1.8 {d24-d25}, [r2, : 128]
+ vmlal.s32 q1, d30, d28
+ vadd.i64 q13, q0, q11
+ vadd.i64 q14, q5, q11
+ vmlal.s32 q6, d30, d9
+ vshr.s64 q4, q13, #26
+ vshr.s64 q13, q14, #26
+ vadd.i64 q7, q7, q4
+ vshl.i64 q4, q4, #26
+ vadd.i64 q14, q7, q3
+ vadd.i64 q9, q9, q13
+ vshl.i64 q13, q13, #26
+ vadd.i64 q15, q9, q3
+ vsub.i64 q0, q0, q4
+ vshr.s64 q4, q14, #25
+ vsub.i64 q5, q5, q13
+ vshr.s64 q13, q15, #25
+ vadd.i64 q6, q6, q4
+ vshl.i64 q4, q4, #25
+ vadd.i64 q14, q6, q11
+ vadd.i64 q2, q2, q13
+ vsub.i64 q4, q7, q4
+ vshr.s64 q7, q14, #26
+ vshl.i64 q13, q13, #25
+ vadd.i64 q14, q2, q11
+ vadd.i64 q8, q8, q7
+ vshl.i64 q7, q7, #26
+ vadd.i64 q15, q8, q3
+ vsub.i64 q9, q9, q13
+ vshr.s64 q13, q14, #26
+ vsub.i64 q6, q6, q7
+ vshr.s64 q7, q15, #25
+ vadd.i64 q10, q10, q13
+ vshl.i64 q13, q13, #26
+ vadd.i64 q14, q10, q3
+ vadd.i64 q1, q1, q7
+ add r2, r3, #288
+ vshl.i64 q7, q7, #25
+ add r4, r3, #96
+ vadd.i64 q15, q1, q11
+ add r2, r2, #8
+ vsub.i64 q2, q2, q13
+ add r4, r4, #8
+ vshr.s64 q13, q14, #25
+ vsub.i64 q7, q8, q7
+ vshr.s64 q8, q15, #26
+ vadd.i64 q14, q13, q13
+ vadd.i64 q12, q12, q8
+ vtrn.32 d12, d14
+ vshl.i64 q8, q8, #26
+ vtrn.32 d13, d15
+ vadd.i64 q3, q12, q3
+ vadd.i64 q0, q0, q14
+ vst1.8 d12, [r2, : 64]!
+ vshl.i64 q7, q13, #4
+ vst1.8 d13, [r4, : 64]!
+ vsub.i64 q1, q1, q8
+ vshr.s64 q3, q3, #25
+ vadd.i64 q0, q0, q7
+ vadd.i64 q5, q5, q3
+ vshl.i64 q3, q3, #25
+ vadd.i64 q6, q5, q11
+ vadd.i64 q0, q0, q13
+ vshl.i64 q7, q13, #25
+ vadd.i64 q8, q0, q11
+ vsub.i64 q3, q12, q3
+ vshr.s64 q6, q6, #26
+ vsub.i64 q7, q10, q7
+ vtrn.32 d2, d6
+ vshr.s64 q8, q8, #26
+ vtrn.32 d3, d7
+ vadd.i64 q3, q9, q6
+ vst1.8 d2, [r2, : 64]
+ vshl.i64 q6, q6, #26
+ vst1.8 d3, [r4, : 64]
+ vadd.i64 q1, q4, q8
+ vtrn.32 d4, d14
+ vshl.i64 q4, q8, #26
+ vtrn.32 d5, d15
+ vsub.i64 q5, q5, q6
+ add r2, r2, #16
+ vsub.i64 q0, q0, q4
+ vst1.8 d4, [r2, : 64]
+ add r4, r4, #16
+ vst1.8 d5, [r4, : 64]
+ vtrn.32 d10, d6
+ vtrn.32 d11, d7
+ sub r2, r2, #8
+ sub r4, r4, #8
+ vtrn.32 d0, d2
+ vtrn.32 d1, d3
+ vst1.8 d10, [r2, : 64]
+ vst1.8 d11, [r4, : 64]
+ sub r2, r2, #24
+ sub r4, r4, #24
+ vst1.8 d0, [r2, : 64]
+ vst1.8 d1, [r4, : 64]
+ add r2, sp, #512
+ add r4, r3, #144
+ add r5, r3, #192
+ vld1.8 {d0-d1}, [r2, : 128]
+ vld1.8 {d2-d3}, [r4, : 128]!
+ vld1.8 {d4-d5}, [r5, : 128]!
+ vzip.i32 q1, q2
+ vld1.8 {d6-d7}, [r4, : 128]!
+ vld1.8 {d8-d9}, [r5, : 128]!
+ vshl.i32 q5, q1, #1
+ vzip.i32 q3, q4
+ vshl.i32 q6, q2, #1
+ vld1.8 {d14}, [r4, : 64]
+ vshl.i32 q8, q3, #1
+ vld1.8 {d15}, [r5, : 64]
+ vshl.i32 q9, q4, #1
+ vmul.i32 d21, d7, d1
+ vtrn.32 d14, d15
+ vmul.i32 q11, q4, q0
+ vmul.i32 q0, q7, q0
+ vmull.s32 q12, d2, d2
+ vmlal.s32 q12, d11, d1
+ vmlal.s32 q12, d12, d0
+ vmlal.s32 q12, d13, d23
+ vmlal.s32 q12, d16, d22
+ vmlal.s32 q12, d7, d21
+ vmull.s32 q10, d2, d11
+ vmlal.s32 q10, d4, d1
+ vmlal.s32 q10, d13, d0
+ vmlal.s32 q10, d6, d23
+ vmlal.s32 q10, d17, d22
+ vmull.s32 q13, d10, d4
+ vmlal.s32 q13, d11, d3
+ vmlal.s32 q13, d13, d1
+ vmlal.s32 q13, d16, d0
+ vmlal.s32 q13, d17, d23
+ vmlal.s32 q13, d8, d22
+ vmull.s32 q1, d10, d5
+ vmlal.s32 q1, d11, d4
+ vmlal.s32 q1, d6, d1
+ vmlal.s32 q1, d17, d0
+ vmlal.s32 q1, d8, d23
+ vmull.s32 q14, d10, d6
+ vmlal.s32 q14, d11, d13
+ vmlal.s32 q14, d4, d4
+ vmlal.s32 q14, d17, d1
+ vmlal.s32 q14, d18, d0
+ vmlal.s32 q14, d9, d23
+ vmull.s32 q11, d10, d7
+ vmlal.s32 q11, d11, d6
+ vmlal.s32 q11, d12, d5
+ vmlal.s32 q11, d8, d1
+ vmlal.s32 q11, d19, d0
+ vmull.s32 q15, d10, d8
+ vmlal.s32 q15, d11, d17
+ vmlal.s32 q15, d12, d6
+ vmlal.s32 q15, d13, d5
+ vmlal.s32 q15, d19, d1
+ vmlal.s32 q15, d14, d0
+ vmull.s32 q2, d10, d9
+ vmlal.s32 q2, d11, d8
+ vmlal.s32 q2, d12, d7
+ vmlal.s32 q2, d13, d6
+ vmlal.s32 q2, d14, d1
+ vmull.s32 q0, d15, d1
+ vmlal.s32 q0, d10, d14
+ vmlal.s32 q0, d11, d19
+ vmlal.s32 q0, d12, d8
+ vmlal.s32 q0, d13, d17
+ vmlal.s32 q0, d6, d6
+ add r2, sp, #480
+ vld1.8 {d18-d19}, [r2, : 128]!
+ vmull.s32 q3, d16, d7
+ vmlal.s32 q3, d10, d15
+ vmlal.s32 q3, d11, d14
+ vmlal.s32 q3, d12, d9
+ vmlal.s32 q3, d13, d8
+ vld1.8 {d8-d9}, [r2, : 128]
+ vadd.i64 q5, q12, q9
+ vadd.i64 q6, q15, q9
+ vshr.s64 q5, q5, #26
+ vshr.s64 q6, q6, #26
+ vadd.i64 q7, q10, q5
+ vshl.i64 q5, q5, #26
+ vadd.i64 q8, q7, q4
+ vadd.i64 q2, q2, q6
+ vshl.i64 q6, q6, #26
+ vadd.i64 q10, q2, q4
+ vsub.i64 q5, q12, q5
+ vshr.s64 q8, q8, #25
+ vsub.i64 q6, q15, q6
+ vshr.s64 q10, q10, #25
+ vadd.i64 q12, q13, q8
+ vshl.i64 q8, q8, #25
+ vadd.i64 q13, q12, q9
+ vadd.i64 q0, q0, q10
+ vsub.i64 q7, q7, q8
+ vshr.s64 q8, q13, #26
+ vshl.i64 q10, q10, #25
+ vadd.i64 q13, q0, q9
+ vadd.i64 q1, q1, q8
+ vshl.i64 q8, q8, #26
+ vadd.i64 q15, q1, q4
+ vsub.i64 q2, q2, q10
+ vshr.s64 q10, q13, #26
+ vsub.i64 q8, q12, q8
+ vshr.s64 q12, q15, #25
+ vadd.i64 q3, q3, q10
+ vshl.i64 q10, q10, #26
+ vadd.i64 q13, q3, q4
+ vadd.i64 q14, q14, q12
+ add r2, r3, #144
+ vshl.i64 q12, q12, #25
+ add r4, r3, #192
+ vadd.i64 q15, q14, q9
+ add r2, r2, #8
+ vsub.i64 q0, q0, q10
+ add r4, r4, #8
+ vshr.s64 q10, q13, #25
+ vsub.i64 q1, q1, q12
+ vshr.s64 q12, q15, #26
+ vadd.i64 q13, q10, q10
+ vadd.i64 q11, q11, q12
+ vtrn.32 d16, d2
+ vshl.i64 q12, q12, #26
+ vtrn.32 d17, d3
+ vadd.i64 q1, q11, q4
+ vadd.i64 q4, q5, q13
+ vst1.8 d16, [r2, : 64]!
+ vshl.i64 q5, q10, #4
+ vst1.8 d17, [r4, : 64]!
+ vsub.i64 q8, q14, q12
+ vshr.s64 q1, q1, #25
+ vadd.i64 q4, q4, q5
+ vadd.i64 q5, q6, q1
+ vshl.i64 q1, q1, #25
+ vadd.i64 q6, q5, q9
+ vadd.i64 q4, q4, q10
+ vshl.i64 q10, q10, #25
+ vadd.i64 q9, q4, q9
+ vsub.i64 q1, q11, q1
+ vshr.s64 q6, q6, #26
+ vsub.i64 q3, q3, q10
+ vtrn.32 d16, d2
+ vshr.s64 q9, q9, #26
+ vtrn.32 d17, d3
+ vadd.i64 q1, q2, q6
+ vst1.8 d16, [r2, : 64]
+ vshl.i64 q2, q6, #26
+ vst1.8 d17, [r4, : 64]
+ vadd.i64 q6, q7, q9
+ vtrn.32 d0, d6
+ vshl.i64 q7, q9, #26
+ vtrn.32 d1, d7
+ vsub.i64 q2, q5, q2
+ add r2, r2, #16
+ vsub.i64 q3, q4, q7
+ vst1.8 d0, [r2, : 64]
+ add r4, r4, #16
+ vst1.8 d1, [r4, : 64]
+ vtrn.32 d4, d2
+ vtrn.32 d5, d3
+ sub r2, r2, #8
+ sub r4, r4, #8
+ vtrn.32 d6, d12
+ vtrn.32 d7, d13
+ vst1.8 d4, [r2, : 64]
+ vst1.8 d5, [r4, : 64]
+ sub r2, r2, #24
+ sub r4, r4, #24
+ vst1.8 d6, [r2, : 64]
+ vst1.8 d7, [r4, : 64]
+ add r2, r3, #336
+ add r4, r3, #288
+ vld1.8 {d0-d1}, [r2, : 128]!
+ vld1.8 {d2-d3}, [r4, : 128]!
+ vadd.i32 q0, q0, q1
+ vld1.8 {d2-d3}, [r2, : 128]!
+ vld1.8 {d4-d5}, [r4, : 128]!
+ vadd.i32 q1, q1, q2
+ add r5, r3, #288
+ vld1.8 {d4}, [r2, : 64]
+ vld1.8 {d6}, [r4, : 64]
+ vadd.i32 q2, q2, q3
+ vst1.8 {d0-d1}, [r5, : 128]!
+ vst1.8 {d2-d3}, [r5, : 128]!
+ vst1.8 d4, [r5, : 64]
+ add r2, r3, #48
+ add r4, r3, #144
+ vld1.8 {d0-d1}, [r4, : 128]!
+ vld1.8 {d2-d3}, [r4, : 128]!
+ vld1.8 {d4}, [r4, : 64]
+ add r4, r3, #288
+ vld1.8 {d6-d7}, [r4, : 128]!
+ vtrn.32 q0, q3
+ vld1.8 {d8-d9}, [r4, : 128]!
+ vshl.i32 q5, q0, #4
+ vtrn.32 q1, q4
+ vshl.i32 q6, q3, #4
+ vadd.i32 q5, q5, q0
+ vadd.i32 q6, q6, q3
+ vshl.i32 q7, q1, #4
+ vld1.8 {d5}, [r4, : 64]
+ vshl.i32 q8, q4, #4
+ vtrn.32 d4, d5
+ vadd.i32 q7, q7, q1
+ vadd.i32 q8, q8, q4
+ vld1.8 {d18-d19}, [r2, : 128]!
+ vshl.i32 q10, q2, #4
+ vld1.8 {d22-d23}, [r2, : 128]!
+ vadd.i32 q10, q10, q2
+ vld1.8 {d24}, [r2, : 64]
+ vadd.i32 q5, q5, q0
+ add r2, r3, #240
+ vld1.8 {d26-d27}, [r2, : 128]!
+ vadd.i32 q6, q6, q3
+ vld1.8 {d28-d29}, [r2, : 128]!
+ vadd.i32 q8, q8, q4
+ vld1.8 {d25}, [r2, : 64]
+ vadd.i32 q10, q10, q2
+ vtrn.32 q9, q13
+ vadd.i32 q7, q7, q1
+ vadd.i32 q5, q5, q0
+ vtrn.32 q11, q14
+ vadd.i32 q6, q6, q3
+ add r2, sp, #528
+ vadd.i32 q10, q10, q2
+ vtrn.32 d24, d25
+ vst1.8 {d12-d13}, [r2, : 128]!
+ vshl.i32 q6, q13, #1
+ vst1.8 {d20-d21}, [r2, : 128]!
+ vshl.i32 q10, q14, #1
+ vst1.8 {d12-d13}, [r2, : 128]!
+ vshl.i32 q15, q12, #1
+ vadd.i32 q8, q8, q4
+ vext.32 d10, d31, d30, #0
+ vadd.i32 q7, q7, q1
+ vst1.8 {d16-d17}, [r2, : 128]!
+ vmull.s32 q8, d18, d5
+ vmlal.s32 q8, d26, d4
+ vmlal.s32 q8, d19, d9
+ vmlal.s32 q8, d27, d3
+ vmlal.s32 q8, d22, d8
+ vmlal.s32 q8, d28, d2
+ vmlal.s32 q8, d23, d7
+ vmlal.s32 q8, d29, d1
+ vmlal.s32 q8, d24, d6
+ vmlal.s32 q8, d25, d0
+ vst1.8 {d14-d15}, [r2, : 128]!
+ vmull.s32 q2, d18, d4
+ vmlal.s32 q2, d12, d9
+ vmlal.s32 q2, d13, d8
+ vmlal.s32 q2, d19, d3
+ vmlal.s32 q2, d22, d2
+ vmlal.s32 q2, d23, d1
+ vmlal.s32 q2, d24, d0
+ vst1.8 {d20-d21}, [r2, : 128]!
+ vmull.s32 q7, d18, d9
+ vmlal.s32 q7, d26, d3
+ vmlal.s32 q7, d19, d8
+ vmlal.s32 q7, d27, d2
+ vmlal.s32 q7, d22, d7
+ vmlal.s32 q7, d28, d1
+ vmlal.s32 q7, d23, d6
+ vmlal.s32 q7, d29, d0
+ vst1.8 {d10-d11}, [r2, : 128]!
+ vmull.s32 q5, d18, d3
+ vmlal.s32 q5, d19, d2
+ vmlal.s32 q5, d22, d1
+ vmlal.s32 q5, d23, d0
+ vmlal.s32 q5, d12, d8
+ vst1.8 {d16-d17}, [r2, : 128]!
+ vmull.s32 q4, d18, d8
+ vmlal.s32 q4, d26, d2
+ vmlal.s32 q4, d19, d7
+ vmlal.s32 q4, d27, d1
+ vmlal.s32 q4, d22, d6
+ vmlal.s32 q4, d28, d0
+ vmull.s32 q8, d18, d7
+ vmlal.s32 q8, d26, d1
+ vmlal.s32 q8, d19, d6
+ vmlal.s32 q8, d27, d0
+ add r2, sp, #544
+ vld1.8 {d20-d21}, [r2, : 128]
+ vmlal.s32 q7, d24, d21
+ vmlal.s32 q7, d25, d20
+ vmlal.s32 q4, d23, d21
+ vmlal.s32 q4, d29, d20
+ vmlal.s32 q8, d22, d21
+ vmlal.s32 q8, d28, d20
+ vmlal.s32 q5, d24, d20
+ vst1.8 {d14-d15}, [r2, : 128]
+ vmull.s32 q7, d18, d6
+ vmlal.s32 q7, d26, d0
+ add r2, sp, #624
+ vld1.8 {d30-d31}, [r2, : 128]
+ vmlal.s32 q2, d30, d21
+ vmlal.s32 q7, d19, d21
+ vmlal.s32 q7, d27, d20
+ add r2, sp, #592
+ vld1.8 {d26-d27}, [r2, : 128]
+ vmlal.s32 q4, d25, d27
+ vmlal.s32 q8, d29, d27
+ vmlal.s32 q8, d25, d26
+ vmlal.s32 q7, d28, d27
+ vmlal.s32 q7, d29, d26
+ add r2, sp, #576
+ vld1.8 {d28-d29}, [r2, : 128]
+ vmlal.s32 q4, d24, d29
+ vmlal.s32 q8, d23, d29
+ vmlal.s32 q8, d24, d28
+ vmlal.s32 q7, d22, d29
+ vmlal.s32 q7, d23, d28
+ vst1.8 {d8-d9}, [r2, : 128]
+ add r2, sp, #528
+ vld1.8 {d8-d9}, [r2, : 128]
+ vmlal.s32 q7, d24, d9
+ vmlal.s32 q7, d25, d31
+ vmull.s32 q1, d18, d2
+ vmlal.s32 q1, d19, d1
+ vmlal.s32 q1, d22, d0
+ vmlal.s32 q1, d24, d27
+ vmlal.s32 q1, d23, d20
+ vmlal.s32 q1, d12, d7
+ vmlal.s32 q1, d13, d6
+ vmull.s32 q6, d18, d1
+ vmlal.s32 q6, d19, d0
+ vmlal.s32 q6, d23, d27
+ vmlal.s32 q6, d22, d20
+ vmlal.s32 q6, d24, d26
+ vmull.s32 q0, d18, d0
+ vmlal.s32 q0, d22, d27
+ vmlal.s32 q0, d23, d26
+ vmlal.s32 q0, d24, d31
+ vmlal.s32 q0, d19, d20
+ add r2, sp, #608
+ vld1.8 {d18-d19}, [r2, : 128]
+ vmlal.s32 q2, d18, d7
+ vmlal.s32 q5, d18, d6
+ vmlal.s32 q1, d18, d21
+ vmlal.s32 q0, d18, d28
+ vmlal.s32 q6, d18, d29
+ vmlal.s32 q2, d19, d6
+ vmlal.s32 q5, d19, d21
+ vmlal.s32 q1, d19, d29
+ vmlal.s32 q0, d19, d9
+ vmlal.s32 q6, d19, d28
+ add r2, sp, #560
+ vld1.8 {d18-d19}, [r2, : 128]
+ add r2, sp, #480
+ vld1.8 {d22-d23}, [r2, : 128]
+ vmlal.s32 q5, d19, d7
+ vmlal.s32 q0, d18, d21
+ vmlal.s32 q0, d19, d29
+ vmlal.s32 q6, d18, d6
+ add r2, sp, #496
+ vld1.8 {d6-d7}, [r2, : 128]
+ vmlal.s32 q6, d19, d21
+ add r2, sp, #544
+ vld1.8 {d18-d19}, [r2, : 128]
+ vmlal.s32 q0, d30, d8
+ add r2, sp, #640
+ vld1.8 {d20-d21}, [r2, : 128]
+ vmlal.s32 q5, d30, d29
+ add r2, sp, #576
+ vld1.8 {d24-d25}, [r2, : 128]
+ vmlal.s32 q1, d30, d28
+ vadd.i64 q13, q0, q11
+ vadd.i64 q14, q5, q11
+ vmlal.s32 q6, d30, d9
+ vshr.s64 q4, q13, #26
+ vshr.s64 q13, q14, #26
+ vadd.i64 q7, q7, q4
+ vshl.i64 q4, q4, #26
+ vadd.i64 q14, q7, q3
+ vadd.i64 q9, q9, q13
+ vshl.i64 q13, q13, #26
+ vadd.i64 q15, q9, q3
+ vsub.i64 q0, q0, q4
+ vshr.s64 q4, q14, #25
+ vsub.i64 q5, q5, q13
+ vshr.s64 q13, q15, #25
+ vadd.i64 q6, q6, q4
+ vshl.i64 q4, q4, #25
+ vadd.i64 q14, q6, q11
+ vadd.i64 q2, q2, q13
+ vsub.i64 q4, q7, q4
+ vshr.s64 q7, q14, #26
+ vshl.i64 q13, q13, #25
+ vadd.i64 q14, q2, q11
+ vadd.i64 q8, q8, q7
+ vshl.i64 q7, q7, #26
+ vadd.i64 q15, q8, q3
+ vsub.i64 q9, q9, q13
+ vshr.s64 q13, q14, #26
+ vsub.i64 q6, q6, q7
+ vshr.s64 q7, q15, #25
+ vadd.i64 q10, q10, q13
+ vshl.i64 q13, q13, #26
+ vadd.i64 q14, q10, q3
+ vadd.i64 q1, q1, q7
+ add r2, r3, #240
+ vshl.i64 q7, q7, #25
+ add r4, r3, #144
+ vadd.i64 q15, q1, q11
+ add r2, r2, #8
+ vsub.i64 q2, q2, q13
+ add r4, r4, #8
+ vshr.s64 q13, q14, #25
+ vsub.i64 q7, q8, q7
+ vshr.s64 q8, q15, #26
+ vadd.i64 q14, q13, q13
+ vadd.i64 q12, q12, q8
+ vtrn.32 d12, d14
+ vshl.i64 q8, q8, #26
+ vtrn.32 d13, d15
+ vadd.i64 q3, q12, q3
+ vadd.i64 q0, q0, q14
+ vst1.8 d12, [r2, : 64]!
+ vshl.i64 q7, q13, #4
+ vst1.8 d13, [r4, : 64]!
+ vsub.i64 q1, q1, q8
+ vshr.s64 q3, q3, #25
+ vadd.i64 q0, q0, q7
+ vadd.i64 q5, q5, q3
+ vshl.i64 q3, q3, #25
+ vadd.i64 q6, q5, q11
+ vadd.i64 q0, q0, q13
+ vshl.i64 q7, q13, #25
+ vadd.i64 q8, q0, q11
+ vsub.i64 q3, q12, q3
+ vshr.s64 q6, q6, #26
+ vsub.i64 q7, q10, q7
+ vtrn.32 d2, d6
+ vshr.s64 q8, q8, #26
+ vtrn.32 d3, d7
+ vadd.i64 q3, q9, q6
+ vst1.8 d2, [r2, : 64]
+ vshl.i64 q6, q6, #26
+ vst1.8 d3, [r4, : 64]
+ vadd.i64 q1, q4, q8
+ vtrn.32 d4, d14
+ vshl.i64 q4, q8, #26
+ vtrn.32 d5, d15
+ vsub.i64 q5, q5, q6
+ add r2, r2, #16
+ vsub.i64 q0, q0, q4
+ vst1.8 d4, [r2, : 64]
+ add r4, r4, #16
+ vst1.8 d5, [r4, : 64]
+ vtrn.32 d10, d6
+ vtrn.32 d11, d7
+ sub r2, r2, #8
+ sub r4, r4, #8
+ vtrn.32 d0, d2
+ vtrn.32 d1, d3
+ vst1.8 d10, [r2, : 64]
+ vst1.8 d11, [r4, : 64]
+ sub r2, r2, #24
+ sub r4, r4, #24
+ vst1.8 d0, [r2, : 64]
+ vst1.8 d1, [r4, : 64]
+ ldr r2, [sp, #456]
+ ldr r4, [sp, #460]
+ subs r5, r2, #1
+ bge .Lmainloop
+ add r1, r3, #144
+ add r2, r3, #336
+ vld1.8 {d0-d1}, [r1, : 128]!
+ vld1.8 {d2-d3}, [r1, : 128]!
+ vld1.8 {d4}, [r1, : 64]
+ vst1.8 {d0-d1}, [r2, : 128]!
+ vst1.8 {d2-d3}, [r2, : 128]!
+ vst1.8 d4, [r2, : 64]
+ movw r1, #0
+.Linvertloop:
+ add r2, r3, #144
+ movw r4, #0
+ movw r5, #2
+ cmp r1, #1
+ moveq r5, #1
+ addeq r2, r3, #336
+ addeq r4, r3, #48
+ cmp r1, #2
+ moveq r5, #1
+ addeq r2, r3, #48
+ cmp r1, #3
+ moveq r5, #5
+ addeq r4, r3, #336
+ cmp r1, #4
+ moveq r5, #10
+ cmp r1, #5
+ moveq r5, #20
+ cmp r1, #6
+ moveq r5, #10
+ addeq r2, r3, #336
+ addeq r4, r3, #336
+ cmp r1, #7
+ moveq r5, #50
+ cmp r1, #8
+ moveq r5, #100
+ cmp r1, #9
+ moveq r5, #50
+ addeq r2, r3, #336
+ cmp r1, #10
+ moveq r5, #5
+ addeq r2, r3, #48
+ cmp r1, #11
+ moveq r5, #0
+ addeq r2, r3, #96
+ add r6, r3, #144
+ add r7, r3, #288
+ vld1.8 {d0-d1}, [r6, : 128]!
+ vld1.8 {d2-d3}, [r6, : 128]!
+ vld1.8 {d4}, [r6, : 64]
+ vst1.8 {d0-d1}, [r7, : 128]!
+ vst1.8 {d2-d3}, [r7, : 128]!
+ vst1.8 d4, [r7, : 64]
+ cmp r5, #0
+ beq .Lskipsquaringloop
+.Lsquaringloop:
+ add r6, r3, #288
+ add r7, r3, #288
+ add r8, r3, #288
+ vmov.i32 q0, #19
+ vmov.i32 q1, #0
+ vmov.i32 q2, #1
+ vzip.i32 q1, q2
+ vld1.8 {d4-d5}, [r7, : 128]!
+ vld1.8 {d6-d7}, [r7, : 128]!
+ vld1.8 {d9}, [r7, : 64]
+ vld1.8 {d10-d11}, [r6, : 128]!
+ add r7, sp, #384
+ vld1.8 {d12-d13}, [r6, : 128]!
+ vmul.i32 q7, q2, q0
+ vld1.8 {d8}, [r6, : 64]
+ vext.32 d17, d11, d10, #1
+ vmul.i32 q9, q3, q0
+ vext.32 d16, d10, d8, #1
+ vshl.u32 q10, q5, q1
+ vext.32 d22, d14, d4, #1
+ vext.32 d24, d18, d6, #1
+ vshl.u32 q13, q6, q1
+ vshl.u32 d28, d8, d2
+ vrev64.i32 d22, d22
+ vmul.i32 d1, d9, d1
+ vrev64.i32 d24, d24
+ vext.32 d29, d8, d13, #1
+ vext.32 d0, d1, d9, #1
+ vrev64.i32 d0, d0
+ vext.32 d2, d9, d1, #1
+ vext.32 d23, d15, d5, #1
+ vmull.s32 q4, d20, d4
+ vrev64.i32 d23, d23
+ vmlal.s32 q4, d21, d1
+ vrev64.i32 d2, d2
+ vmlal.s32 q4, d26, d19
+ vext.32 d3, d5, d15, #1
+ vmlal.s32 q4, d27, d18
+ vrev64.i32 d3, d3
+ vmlal.s32 q4, d28, d15
+ vext.32 d14, d12, d11, #1
+ vmull.s32 q5, d16, d23
+ vext.32 d15, d13, d12, #1
+ vmlal.s32 q5, d17, d4
+ vst1.8 d8, [r7, : 64]!
+ vmlal.s32 q5, d14, d1
+ vext.32 d12, d9, d8, #0
+ vmlal.s32 q5, d15, d19
+ vmov.i64 d13, #0
+ vmlal.s32 q5, d29, d18
+ vext.32 d25, d19, d7, #1
+ vmlal.s32 q6, d20, d5
+ vrev64.i32 d25, d25
+ vmlal.s32 q6, d21, d4
+ vst1.8 d11, [r7, : 64]!
+ vmlal.s32 q6, d26, d1
+ vext.32 d9, d10, d10, #0
+ vmlal.s32 q6, d27, d19
+ vmov.i64 d8, #0
+ vmlal.s32 q6, d28, d18
+ vmlal.s32 q4, d16, d24
+ vmlal.s32 q4, d17, d5
+ vmlal.s32 q4, d14, d4
+ vst1.8 d12, [r7, : 64]!
+ vmlal.s32 q4, d15, d1
+ vext.32 d10, d13, d12, #0
+ vmlal.s32 q4, d29, d19
+ vmov.i64 d11, #0
+ vmlal.s32 q5, d20, d6
+ vmlal.s32 q5, d21, d5
+ vmlal.s32 q5, d26, d4
+ vext.32 d13, d8, d8, #0
+ vmlal.s32 q5, d27, d1
+ vmov.i64 d12, #0
+ vmlal.s32 q5, d28, d19
+ vst1.8 d9, [r7, : 64]!
+ vmlal.s32 q6, d16, d25
+ vmlal.s32 q6, d17, d6
+ vst1.8 d10, [r7, : 64]
+ vmlal.s32 q6, d14, d5
+ vext.32 d8, d11, d10, #0
+ vmlal.s32 q6, d15, d4
+ vmov.i64 d9, #0
+ vmlal.s32 q6, d29, d1
+ vmlal.s32 q4, d20, d7
+ vmlal.s32 q4, d21, d6
+ vmlal.s32 q4, d26, d5
+ vext.32 d11, d12, d12, #0
+ vmlal.s32 q4, d27, d4
+ vmov.i64 d10, #0
+ vmlal.s32 q4, d28, d1
+ vmlal.s32 q5, d16, d0
+ sub r6, r7, #32
+ vmlal.s32 q5, d17, d7
+ vmlal.s32 q5, d14, d6
+ vext.32 d30, d9, d8, #0
+ vmlal.s32 q5, d15, d5
+ vld1.8 {d31}, [r6, : 64]!
+ vmlal.s32 q5, d29, d4
+ vmlal.s32 q15, d20, d0
+ vext.32 d0, d6, d18, #1
+ vmlal.s32 q15, d21, d25
+ vrev64.i32 d0, d0
+ vmlal.s32 q15, d26, d24
+ vext.32 d1, d7, d19, #1
+ vext.32 d7, d10, d10, #0
+ vmlal.s32 q15, d27, d23
+ vrev64.i32 d1, d1
+ vld1.8 {d6}, [r6, : 64]
+ vmlal.s32 q15, d28, d22
+ vmlal.s32 q3, d16, d4
+ add r6, r6, #24
+ vmlal.s32 q3, d17, d2
+ vext.32 d4, d31, d30, #0
+ vmov d17, d11
+ vmlal.s32 q3, d14, d1
+ vext.32 d11, d13, d13, #0
+ vext.32 d13, d30, d30, #0
+ vmlal.s32 q3, d15, d0
+ vext.32 d1, d8, d8, #0
+ vmlal.s32 q3, d29, d3
+ vld1.8 {d5}, [r6, : 64]
+ sub r6, r6, #16
+ vext.32 d10, d6, d6, #0
+ vmov.i32 q1, #0xffffffff
+ vshl.i64 q4, q1, #25
+ add r7, sp, #480
+ vld1.8 {d14-d15}, [r7, : 128]
+ vadd.i64 q9, q2, q7
+ vshl.i64 q1, q1, #26
+ vshr.s64 q10, q9, #26
+ vld1.8 {d0}, [r6, : 64]!
+ vadd.i64 q5, q5, q10
+ vand q9, q9, q1
+ vld1.8 {d16}, [r6, : 64]!
+ add r6, sp, #496
+ vld1.8 {d20-d21}, [r6, : 128]
+ vadd.i64 q11, q5, q10
+ vsub.i64 q2, q2, q9
+ vshr.s64 q9, q11, #25
+ vext.32 d12, d5, d4, #0
+ vand q11, q11, q4
+ vadd.i64 q0, q0, q9
+ vmov d19, d7
+ vadd.i64 q3, q0, q7
+ vsub.i64 q5, q5, q11
+ vshr.s64 q11, q3, #26
+ vext.32 d18, d11, d10, #0
+ vand q3, q3, q1
+ vadd.i64 q8, q8, q11
+ vadd.i64 q11, q8, q10
+ vsub.i64 q0, q0, q3
+ vshr.s64 q3, q11, #25
+ vand q11, q11, q4
+ vadd.i64 q3, q6, q3
+ vadd.i64 q6, q3, q7
+ vsub.i64 q8, q8, q11
+ vshr.s64 q11, q6, #26
+ vand q6, q6, q1
+ vadd.i64 q9, q9, q11
+ vadd.i64 d25, d19, d21
+ vsub.i64 q3, q3, q6
+ vshr.s64 d23, d25, #25
+ vand q4, q12, q4
+ vadd.i64 d21, d23, d23
+ vshl.i64 d25, d23, #4
+ vadd.i64 d21, d21, d23
+ vadd.i64 d25, d25, d21
+ vadd.i64 d4, d4, d25
+ vzip.i32 q0, q8
+ vadd.i64 d12, d4, d14
+ add r6, r8, #8
+ vst1.8 d0, [r6, : 64]
+ vsub.i64 d19, d19, d9
+ add r6, r6, #16
+ vst1.8 d16, [r6, : 64]
+ vshr.s64 d22, d12, #26
+ vand q0, q6, q1
+ vadd.i64 d10, d10, d22
+ vzip.i32 q3, q9
+ vsub.i64 d4, d4, d0
+ sub r6, r6, #8
+ vst1.8 d6, [r6, : 64]
+ add r6, r6, #16
+ vst1.8 d18, [r6, : 64]
+ vzip.i32 q2, q5
+ sub r6, r6, #32
+ vst1.8 d4, [r6, : 64]
+ subs r5, r5, #1
+ bhi .Lsquaringloop
+.Lskipsquaringloop:
+ mov r2, r2
+ add r5, r3, #288
+ add r6, r3, #144
+ vmov.i32 q0, #19
+ vmov.i32 q1, #0
+ vmov.i32 q2, #1
+ vzip.i32 q1, q2
+ vld1.8 {d4-d5}, [r5, : 128]!
+ vld1.8 {d6-d7}, [r5, : 128]!
+ vld1.8 {d9}, [r5, : 64]
+ vld1.8 {d10-d11}, [r2, : 128]!
+ add r5, sp, #384
+ vld1.8 {d12-d13}, [r2, : 128]!
+ vmul.i32 q7, q2, q0
+ vld1.8 {d8}, [r2, : 64]
+ vext.32 d17, d11, d10, #1
+ vmul.i32 q9, q3, q0
+ vext.32 d16, d10, d8, #1
+ vshl.u32 q10, q5, q1
+ vext.32 d22, d14, d4, #1
+ vext.32 d24, d18, d6, #1
+ vshl.u32 q13, q6, q1
+ vshl.u32 d28, d8, d2
+ vrev64.i32 d22, d22
+ vmul.i32 d1, d9, d1
+ vrev64.i32 d24, d24
+ vext.32 d29, d8, d13, #1
+ vext.32 d0, d1, d9, #1
+ vrev64.i32 d0, d0
+ vext.32 d2, d9, d1, #1
+ vext.32 d23, d15, d5, #1
+ vmull.s32 q4, d20, d4
+ vrev64.i32 d23, d23
+ vmlal.s32 q4, d21, d1
+ vrev64.i32 d2, d2
+ vmlal.s32 q4, d26, d19
+ vext.32 d3, d5, d15, #1
+ vmlal.s32 q4, d27, d18
+ vrev64.i32 d3, d3
+ vmlal.s32 q4, d28, d15
+ vext.32 d14, d12, d11, #1
+ vmull.s32 q5, d16, d23
+ vext.32 d15, d13, d12, #1
+ vmlal.s32 q5, d17, d4
+ vst1.8 d8, [r5, : 64]!
+ vmlal.s32 q5, d14, d1
+ vext.32 d12, d9, d8, #0
+ vmlal.s32 q5, d15, d19
+ vmov.i64 d13, #0
+ vmlal.s32 q5, d29, d18
+ vext.32 d25, d19, d7, #1
+ vmlal.s32 q6, d20, d5
+ vrev64.i32 d25, d25
+ vmlal.s32 q6, d21, d4
+ vst1.8 d11, [r5, : 64]!
+ vmlal.s32 q6, d26, d1
+ vext.32 d9, d10, d10, #0
+ vmlal.s32 q6, d27, d19
+ vmov.i64 d8, #0
+ vmlal.s32 q6, d28, d18
+ vmlal.s32 q4, d16, d24
+ vmlal.s32 q4, d17, d5
+ vmlal.s32 q4, d14, d4
+ vst1.8 d12, [r5, : 64]!
+ vmlal.s32 q4, d15, d1
+ vext.32 d10, d13, d12, #0
+ vmlal.s32 q4, d29, d19
+ vmov.i64 d11, #0
+ vmlal.s32 q5, d20, d6
+ vmlal.s32 q5, d21, d5
+ vmlal.s32 q5, d26, d4
+ vext.32 d13, d8, d8, #0
+ vmlal.s32 q5, d27, d1
+ vmov.i64 d12, #0
+ vmlal.s32 q5, d28, d19
+ vst1.8 d9, [r5, : 64]!
+ vmlal.s32 q6, d16, d25
+ vmlal.s32 q6, d17, d6
+ vst1.8 d10, [r5, : 64]
+ vmlal.s32 q6, d14, d5
+ vext.32 d8, d11, d10, #0
+ vmlal.s32 q6, d15, d4
+ vmov.i64 d9, #0
+ vmlal.s32 q6, d29, d1
+ vmlal.s32 q4, d20, d7
+ vmlal.s32 q4, d21, d6
+ vmlal.s32 q4, d26, d5
+ vext.32 d11, d12, d12, #0
+ vmlal.s32 q4, d27, d4
+ vmov.i64 d10, #0
+ vmlal.s32 q4, d28, d1
+ vmlal.s32 q5, d16, d0
+ sub r2, r5, #32
+ vmlal.s32 q5, d17, d7
+ vmlal.s32 q5, d14, d6
+ vext.32 d30, d9, d8, #0
+ vmlal.s32 q5, d15, d5
+ vld1.8 {d31}, [r2, : 64]!
+ vmlal.s32 q5, d29, d4
+ vmlal.s32 q15, d20, d0
+ vext.32 d0, d6, d18, #1
+ vmlal.s32 q15, d21, d25
+ vrev64.i32 d0, d0
+ vmlal.s32 q15, d26, d24
+ vext.32 d1, d7, d19, #1
+ vext.32 d7, d10, d10, #0
+ vmlal.s32 q15, d27, d23
+ vrev64.i32 d1, d1
+ vld1.8 {d6}, [r2, : 64]
+ vmlal.s32 q15, d28, d22
+ vmlal.s32 q3, d16, d4
+ add r2, r2, #24
+ vmlal.s32 q3, d17, d2
+ vext.32 d4, d31, d30, #0
+ vmov d17, d11
+ vmlal.s32 q3, d14, d1
+ vext.32 d11, d13, d13, #0
+ vext.32 d13, d30, d30, #0
+ vmlal.s32 q3, d15, d0
+ vext.32 d1, d8, d8, #0
+ vmlal.s32 q3, d29, d3
+ vld1.8 {d5}, [r2, : 64]
+ sub r2, r2, #16
+ vext.32 d10, d6, d6, #0
+ vmov.i32 q1, #0xffffffff
+ vshl.i64 q4, q1, #25
+ add r5, sp, #480
+ vld1.8 {d14-d15}, [r5, : 128]
+ vadd.i64 q9, q2, q7
+ vshl.i64 q1, q1, #26
+ vshr.s64 q10, q9, #26
+ vld1.8 {d0}, [r2, : 64]!
+ vadd.i64 q5, q5, q10
+ vand q9, q9, q1
+ vld1.8 {d16}, [r2, : 64]!
+ add r2, sp, #496
+ vld1.8 {d20-d21}, [r2, : 128]
+ vadd.i64 q11, q5, q10
+ vsub.i64 q2, q2, q9
+ vshr.s64 q9, q11, #25
+ vext.32 d12, d5, d4, #0
+ vand q11, q11, q4
+ vadd.i64 q0, q0, q9
+ vmov d19, d7
+ vadd.i64 q3, q0, q7
+ vsub.i64 q5, q5, q11
+ vshr.s64 q11, q3, #26
+ vext.32 d18, d11, d10, #0
+ vand q3, q3, q1
+ vadd.i64 q8, q8, q11
+ vadd.i64 q11, q8, q10
+ vsub.i64 q0, q0, q3
+ vshr.s64 q3, q11, #25
+ vand q11, q11, q4
+ vadd.i64 q3, q6, q3
+ vadd.i64 q6, q3, q7
+ vsub.i64 q8, q8, q11
+ vshr.s64 q11, q6, #26
+ vand q6, q6, q1
+ vadd.i64 q9, q9, q11
+ vadd.i64 d25, d19, d21
+ vsub.i64 q3, q3, q6
+ vshr.s64 d23, d25, #25
+ vand q4, q12, q4
+ vadd.i64 d21, d23, d23
+ vshl.i64 d25, d23, #4
+ vadd.i64 d21, d21, d23
+ vadd.i64 d25, d25, d21
+ vadd.i64 d4, d4, d25
+ vzip.i32 q0, q8
+ vadd.i64 d12, d4, d14
+ add r2, r6, #8
+ vst1.8 d0, [r2, : 64]
+ vsub.i64 d19, d19, d9
+ add r2, r2, #16
+ vst1.8 d16, [r2, : 64]
+ vshr.s64 d22, d12, #26
+ vand q0, q6, q1
+ vadd.i64 d10, d10, d22
+ vzip.i32 q3, q9
+ vsub.i64 d4, d4, d0
+ sub r2, r2, #8
+ vst1.8 d6, [r2, : 64]
+ add r2, r2, #16
+ vst1.8 d18, [r2, : 64]
+ vzip.i32 q2, q5
+ sub r2, r2, #32
+ vst1.8 d4, [r2, : 64]
+ cmp r4, #0
+ beq .Lskippostcopy
+ add r2, r3, #144
+ mov r4, r4
+ vld1.8 {d0-d1}, [r2, : 128]!
+ vld1.8 {d2-d3}, [r2, : 128]!
+ vld1.8 {d4}, [r2, : 64]
+ vst1.8 {d0-d1}, [r4, : 128]!
+ vst1.8 {d2-d3}, [r4, : 128]!
+ vst1.8 d4, [r4, : 64]
+.Lskippostcopy:
+ cmp r1, #1
+ bne .Lskipfinalcopy
+ add r2, r3, #288
+ add r4, r3, #144
+ vld1.8 {d0-d1}, [r2, : 128]!
+ vld1.8 {d2-d3}, [r2, : 128]!
+ vld1.8 {d4}, [r2, : 64]
+ vst1.8 {d0-d1}, [r4, : 128]!
+ vst1.8 {d2-d3}, [r4, : 128]!
+ vst1.8 d4, [r4, : 64]
+.Lskipfinalcopy:
+ add r1, r1, #1
+ cmp r1, #12
+ blo .Linvertloop
+ add r1, r3, #144
+ ldr r2, [r1], #4
+ ldr r3, [r1], #4
+ ldr r4, [r1], #4
+ ldr r5, [r1], #4
+ ldr r6, [r1], #4
+ ldr r7, [r1], #4
+ ldr r8, [r1], #4
+ ldr r9, [r1], #4
+ ldr r10, [r1], #4
+ ldr r1, [r1]
+ add r11, r1, r1, LSL #4
+ add r11, r11, r1, LSL #1
+ add r11, r11, #16777216
+ mov r11, r11, ASR #25
+ add r11, r11, r2
+ mov r11, r11, ASR #26
+ add r11, r11, r3
+ mov r11, r11, ASR #25
+ add r11, r11, r4
+ mov r11, r11, ASR #26
+ add r11, r11, r5
+ mov r11, r11, ASR #25
+ add r11, r11, r6
+ mov r11, r11, ASR #26
+ add r11, r11, r7
+ mov r11, r11, ASR #25
+ add r11, r11, r8
+ mov r11, r11, ASR #26
+ add r11, r11, r9
+ mov r11, r11, ASR #25
+ add r11, r11, r10
+ mov r11, r11, ASR #26
+ add r11, r11, r1
+ mov r11, r11, ASR #25
+ add r2, r2, r11
+ add r2, r2, r11, LSL #1
+ add r2, r2, r11, LSL #4
+ mov r11, r2, ASR #26
+ add r3, r3, r11
+ sub r2, r2, r11, LSL #26
+ mov r11, r3, ASR #25
+ add r4, r4, r11
+ sub r3, r3, r11, LSL #25
+ mov r11, r4, ASR #26
+ add r5, r5, r11
+ sub r4, r4, r11, LSL #26
+ mov r11, r5, ASR #25
+ add r6, r6, r11
+ sub r5, r5, r11, LSL #25
+ mov r11, r6, ASR #26
+ add r7, r7, r11
+ sub r6, r6, r11, LSL #26
+ mov r11, r7, ASR #25
+ add r8, r8, r11
+ sub r7, r7, r11, LSL #25
+ mov r11, r8, ASR #26
+ add r9, r9, r11
+ sub r8, r8, r11, LSL #26
+ mov r11, r9, ASR #25
+ add r10, r10, r11
+ sub r9, r9, r11, LSL #25
+ mov r11, r10, ASR #26
+ add r1, r1, r11
+ sub r10, r10, r11, LSL #26
+ mov r11, r1, ASR #25
+ sub r1, r1, r11, LSL #25
+ add r2, r2, r3, LSL #26
+ mov r3, r3, LSR #6
+ add r3, r3, r4, LSL #19
+ mov r4, r4, LSR #13
+ add r4, r4, r5, LSL #13
+ mov r5, r5, LSR #19
+ add r5, r5, r6, LSL #6
+ add r6, r7, r8, LSL #25
+ mov r7, r8, LSR #7
+ add r7, r7, r9, LSL #19
+ mov r8, r9, LSR #13
+ add r8, r8, r10, LSL #12
+ mov r9, r10, LSR #20
+ add r1, r9, r1, LSL #6
+ str r2, [r0]
+ str r3, [r0, #4]
+ str r4, [r0, #8]
+ str r5, [r0, #12]
+ str r6, [r0, #16]
+ str r7, [r0, #20]
+ str r8, [r0, #24]
+ str r1, [r0, #28]
+ movw r0, #0
+ mov sp, ip
+ pop {r4-r11, pc}
+ENDPROC(curve25519_neon)
diff --git a/arch/arm/crypto/curve25519-glue.c b/arch/arm/crypto/curve25519-glue.c
new file mode 100644
index 0000000..4f5cf14
--- /dev/null
+++ b/arch/arm/crypto/curve25519-glue.c
@@ -0,0 +1,135 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ *
+ * Based on public domain code from Daniel J. Bernstein and Peter Schwabe. This
+ * began from SUPERCOP's curve25519/neon2/scalarmult.s, but has subsequently been
+ * manually reworked for use in kernel space.
+ */
+
+#include <asm/hwcap.h>
+#include <asm/neon.h>
+#include <asm/simd.h>
+#include <crypto/internal/kpp.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/jump_label.h>
+#include <linux/scatterlist.h>
+#include <crypto/curve25519.h>
+
+asmlinkage void curve25519_neon(u8 mypublic[CURVE25519_KEY_SIZE],
+ const u8 secret[CURVE25519_KEY_SIZE],
+ const u8 basepoint[CURVE25519_KEY_SIZE]);
+
+static __ro_after_init DEFINE_STATIC_KEY_FALSE(have_neon);
+
+void curve25519_arch(u8 out[CURVE25519_KEY_SIZE],
+ const u8 scalar[CURVE25519_KEY_SIZE],
+ const u8 point[CURVE25519_KEY_SIZE])
+{
+ if (static_branch_likely(&have_neon) && may_use_simd()) {
+ kernel_neon_begin();
+ curve25519_neon(out, scalar, point);
+ kernel_neon_end();
+ } else {
+ curve25519_generic(out, scalar, point);
+ }
+}
+EXPORT_SYMBOL(curve25519_arch);
+
+void curve25519_base_arch(u8 pub[CURVE25519_KEY_SIZE],
+ const u8 secret[CURVE25519_KEY_SIZE])
+{
+ return curve25519_arch(pub, secret, curve25519_base_point);
+}
+EXPORT_SYMBOL(curve25519_base_arch);
+
+static int curve25519_set_secret(struct crypto_kpp *tfm, const void *buf,
+ unsigned int len)
+{
+ u8 *secret = kpp_tfm_ctx(tfm);
+
+ if (!len)
+ curve25519_generate_secret(secret);
+ else if (len == CURVE25519_KEY_SIZE &&
+ crypto_memneq(buf, curve25519_null_point, CURVE25519_KEY_SIZE))
+ memcpy(secret, buf, CURVE25519_KEY_SIZE);
+ else
+ return -EINVAL;
+ return 0;
+}
+
+static int curve25519_compute_value(struct kpp_request *req)
+{
+ struct crypto_kpp *tfm = crypto_kpp_reqtfm(req);
+ const u8 *secret = kpp_tfm_ctx(tfm);
+ u8 public_key[CURVE25519_KEY_SIZE];
+ u8 buf[CURVE25519_KEY_SIZE];
+ int copied, nbytes;
+ u8 const *bp;
+
+ if (req->src) {
+ copied = sg_copy_to_buffer(req->src,
+ sg_nents_for_len(req->src,
+ CURVE25519_KEY_SIZE),
+ public_key, CURVE25519_KEY_SIZE);
+ if (copied != CURVE25519_KEY_SIZE)
+ return -EINVAL;
+ bp = public_key;
+ } else {
+ bp = curve25519_base_point;
+ }
+
+ curve25519_arch(buf, secret, bp);
+
+ /* might want less than we've got */
+ nbytes = min_t(size_t, CURVE25519_KEY_SIZE, req->dst_len);
+ copied = sg_copy_from_buffer(req->dst, sg_nents_for_len(req->dst,
+ nbytes),
+ buf, nbytes);
+ if (copied != nbytes)
+ return -EINVAL;
+ return 0;
+}
+
+static unsigned int curve25519_max_size(struct crypto_kpp *tfm)
+{
+ return CURVE25519_KEY_SIZE;
+}
+
+static struct kpp_alg curve25519_alg = {
+ .base.cra_name = "curve25519",
+ .base.cra_driver_name = "curve25519-neon",
+ .base.cra_priority = 200,
+ .base.cra_module = THIS_MODULE,
+ .base.cra_ctxsize = CURVE25519_KEY_SIZE,
+
+ .set_secret = curve25519_set_secret,
+ .generate_public_key = curve25519_compute_value,
+ .compute_shared_secret = curve25519_compute_value,
+ .max_size = curve25519_max_size,
+};
+
+static int __init mod_init(void)
+{
+ if (elf_hwcap & HWCAP_NEON) {
+ static_branch_enable(&have_neon);
+ return IS_REACHABLE(CONFIG_CRYPTO_KPP) ?
+ crypto_register_kpp(&curve25519_alg) : 0;
+ }
+ return 0;
+}
+
+static void __exit mod_exit(void)
+{
+ if (IS_REACHABLE(CONFIG_CRYPTO_KPP) && elf_hwcap & HWCAP_NEON)
+ crypto_unregister_kpp(&curve25519_alg);
+}
+
+module_init(mod_init);
+module_exit(mod_exit);
+
+MODULE_ALIAS_CRYPTO("curve25519");
+MODULE_ALIAS_CRYPTO("curve25519-neon");
+MODULE_LICENSE("GPL v2");
diff --git a/arch/arm/crypto/nh-neon-core.S b/arch/arm/crypto/nh-neon-core.S
new file mode 100644
index 0000000..434d80a
--- /dev/null
+++ b/arch/arm/crypto/nh-neon-core.S
@@ -0,0 +1,116 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * NH - ε-almost-universal hash function, NEON accelerated version
+ *
+ * Copyright 2018 Google LLC
+ *
+ * Author: Eric Biggers <ebiggers@google.com>
+ */
+
+#include <linux/linkage.h>
+
+ .text
+ .fpu neon
+
+ KEY .req r0
+ MESSAGE .req r1
+ MESSAGE_LEN .req r2
+ HASH .req r3
+
+ PASS0_SUMS .req q0
+ PASS0_SUM_A .req d0
+ PASS0_SUM_B .req d1
+ PASS1_SUMS .req q1
+ PASS1_SUM_A .req d2
+ PASS1_SUM_B .req d3
+ PASS2_SUMS .req q2
+ PASS2_SUM_A .req d4
+ PASS2_SUM_B .req d5
+ PASS3_SUMS .req q3
+ PASS3_SUM_A .req d6
+ PASS3_SUM_B .req d7
+ K0 .req q4
+ K1 .req q5
+ K2 .req q6
+ K3 .req q7
+ T0 .req q8
+ T0_L .req d16
+ T0_H .req d17
+ T1 .req q9
+ T1_L .req d18
+ T1_H .req d19
+ T2 .req q10
+ T2_L .req d20
+ T2_H .req d21
+ T3 .req q11
+ T3_L .req d22
+ T3_H .req d23
+
+.macro _nh_stride k0, k1, k2, k3
+
+ // Load next message stride
+ vld1.8 {T3}, [MESSAGE]!
+
+ // Load next key stride
+ vld1.32 {\k3}, [KEY]!
+
+ // Add message words to key words
+ vadd.u32 T0, T3, \k0
+ vadd.u32 T1, T3, \k1
+ vadd.u32 T2, T3, \k2
+ vadd.u32 T3, T3, \k3
+
+ // Multiply 32x32 => 64 and accumulate
+ vmlal.u32 PASS0_SUMS, T0_L, T0_H
+ vmlal.u32 PASS1_SUMS, T1_L, T1_H
+ vmlal.u32 PASS2_SUMS, T2_L, T2_H
+ vmlal.u32 PASS3_SUMS, T3_L, T3_H
+.endm
+
+/*
+ * void nh_neon(const u32 *key, const u8 *message, size_t message_len,
+ * u8 hash[NH_HASH_BYTES])
+ *
+ * It's guaranteed that message_len % 16 == 0.
+ */
+ENTRY(nh_neon)
+
+ vld1.32 {K0,K1}, [KEY]!
+ vmov.u64 PASS0_SUMS, #0
+ vmov.u64 PASS1_SUMS, #0
+ vld1.32 {K2}, [KEY]!
+ vmov.u64 PASS2_SUMS, #0
+ vmov.u64 PASS3_SUMS, #0
+
+ subs MESSAGE_LEN, MESSAGE_LEN, #64
+ blt .Lloop4_done
+.Lloop4:
+ _nh_stride K0, K1, K2, K3
+ _nh_stride K1, K2, K3, K0
+ _nh_stride K2, K3, K0, K1
+ _nh_stride K3, K0, K1, K2
+ subs MESSAGE_LEN, MESSAGE_LEN, #64
+ bge .Lloop4
+
+.Lloop4_done:
+ ands MESSAGE_LEN, MESSAGE_LEN, #63
+ beq .Ldone
+ _nh_stride K0, K1, K2, K3
+
+ subs MESSAGE_LEN, MESSAGE_LEN, #16
+ beq .Ldone
+ _nh_stride K1, K2, K3, K0
+
+ subs MESSAGE_LEN, MESSAGE_LEN, #16
+ beq .Ldone
+ _nh_stride K2, K3, K0, K1
+
+.Ldone:
+ // Sum the accumulators for each pass, then store the sums to 'hash'
+ vadd.u64 T0_L, PASS0_SUM_A, PASS0_SUM_B
+ vadd.u64 T0_H, PASS1_SUM_A, PASS1_SUM_B
+ vadd.u64 T1_L, PASS2_SUM_A, PASS2_SUM_B
+ vadd.u64 T1_H, PASS3_SUM_A, PASS3_SUM_B
+ vst1.8 {T0-T1}, [HASH]
+ bx lr
+ENDPROC(nh_neon)
diff --git a/arch/arm/crypto/nhpoly1305-neon-glue.c b/arch/arm/crypto/nhpoly1305-neon-glue.c
new file mode 100644
index 0000000..49aae87
--- /dev/null
+++ b/arch/arm/crypto/nhpoly1305-neon-glue.c
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * NHPoly1305 - ε-almost-∆-universal hash function for Adiantum
+ * (NEON accelerated version)
+ *
+ * Copyright 2018 Google LLC
+ */
+
+#include <asm/neon.h>
+#include <asm/simd.h>
+#include <crypto/internal/hash.h>
+#include <crypto/nhpoly1305.h>
+#include <linux/module.h>
+
+asmlinkage void nh_neon(const u32 *key, const u8 *message, size_t message_len,
+ u8 hash[NH_HASH_BYTES]);
+
+/* wrapper to avoid indirect call to assembly, which doesn't work with CFI */
+static void _nh_neon(const u32 *key, const u8 *message, size_t message_len,
+ __le64 hash[NH_NUM_PASSES])
+{
+ nh_neon(key, message, message_len, (u8 *)hash);
+}
+
+static int nhpoly1305_neon_update(struct shash_desc *desc,
+ const u8 *src, unsigned int srclen)
+{
+ if (srclen < 64 || !may_use_simd())
+ return crypto_nhpoly1305_update(desc, src, srclen);
+
+ do {
+ unsigned int n = min_t(unsigned int, srclen, PAGE_SIZE);
+
+ kernel_neon_begin();
+ crypto_nhpoly1305_update_helper(desc, src, n, _nh_neon);
+ kernel_neon_end();
+ src += n;
+ srclen -= n;
+ } while (srclen);
+ return 0;
+}
+
+static struct shash_alg nhpoly1305_alg = {
+ .base.cra_name = "nhpoly1305",
+ .base.cra_driver_name = "nhpoly1305-neon",
+ .base.cra_priority = 200,
+ .base.cra_ctxsize = sizeof(struct nhpoly1305_key),
+ .base.cra_module = THIS_MODULE,
+ .digestsize = POLY1305_DIGEST_SIZE,
+ .init = crypto_nhpoly1305_init,
+ .update = nhpoly1305_neon_update,
+ .final = crypto_nhpoly1305_final,
+ .setkey = crypto_nhpoly1305_setkey,
+ .descsize = sizeof(struct nhpoly1305_state),
+};
+
+static int __init nhpoly1305_mod_init(void)
+{
+ if (!(elf_hwcap & HWCAP_NEON))
+ return -ENODEV;
+
+ return crypto_register_shash(&nhpoly1305_alg);
+}
+
+static void __exit nhpoly1305_mod_exit(void)
+{
+ crypto_unregister_shash(&nhpoly1305_alg);
+}
+
+module_init(nhpoly1305_mod_init);
+module_exit(nhpoly1305_mod_exit);
+
+MODULE_DESCRIPTION("NHPoly1305 ε-almost-∆-universal hash function (NEON-accelerated)");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Eric Biggers <ebiggers@google.com>");
+MODULE_ALIAS_CRYPTO("nhpoly1305");
+MODULE_ALIAS_CRYPTO("nhpoly1305-neon");
diff --git a/arch/arm/crypto/poly1305-armv4.pl b/arch/arm/crypto/poly1305-armv4.pl
new file mode 100644
index 0000000..6d79498
--- /dev/null
+++ b/arch/arm/crypto/poly1305-armv4.pl
@@ -0,0 +1,1236 @@
+#!/usr/bin/env perl
+# SPDX-License-Identifier: GPL-1.0+ OR BSD-3-Clause
+#
+# ====================================================================
+# Written by Andy Polyakov, @dot-asm, initially for the OpenSSL
+# project.
+# ====================================================================
+#
+# IALU(*)/gcc-4.4 NEON
+#
+# ARM11xx(ARMv6) 7.78/+100% -
+# Cortex-A5 6.35/+130% 3.00
+# Cortex-A8 6.25/+115% 2.36
+# Cortex-A9 5.10/+95% 2.55
+# Cortex-A15 3.85/+85% 1.25(**)
+# Snapdragon S4 5.70/+100% 1.48(**)
+#
+# (*) this is for -march=armv6, i.e. with bunch of ldrb loading data;
+# (**) these are trade-off results, they can be improved by ~8% but at
+# the cost of 15/12% regression on Cortex-A5/A7, it's even possible
+# to improve Cortex-A9 result, but then A5/A7 loose more than 20%;
+
+$flavour = shift;
+if ($flavour=~/\w[\w\-]*\.\w+$/) { $output=$flavour; undef $flavour; }
+else { while (($output=shift) && ($output!~/\w[\w\-]*\.\w+$/)) {} }
+
+if ($flavour && $flavour ne "void") {
+ $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
+ ( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or
+ ( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate) or
+ die "can't locate arm-xlate.pl";
+
+ open STDOUT,"| \"$^X\" $xlate $flavour $output";
+} else {
+ open STDOUT,">$output";
+}
+
+($ctx,$inp,$len,$padbit)=map("r$_",(0..3));
+
+$code.=<<___;
+#ifndef __KERNEL__
+# include "arm_arch.h"
+#else
+# define __ARM_ARCH__ __LINUX_ARM_ARCH__
+# define __ARM_MAX_ARCH__ __LINUX_ARM_ARCH__
+# define poly1305_init poly1305_init_arm
+# define poly1305_blocks poly1305_blocks_arm
+# define poly1305_emit poly1305_emit_arm
+.globl poly1305_blocks_neon
+#endif
+
+#if defined(__thumb2__)
+.syntax unified
+.thumb
+#else
+.code 32
+#endif
+
+.text
+
+.globl poly1305_emit
+.globl poly1305_blocks
+.globl poly1305_init
+.type poly1305_init,%function
+.align 5
+poly1305_init:
+.Lpoly1305_init:
+ stmdb sp!,{r4-r11}
+
+ eor r3,r3,r3
+ cmp $inp,#0
+ str r3,[$ctx,#0] @ zero hash value
+ str r3,[$ctx,#4]
+ str r3,[$ctx,#8]
+ str r3,[$ctx,#12]
+ str r3,[$ctx,#16]
+ str r3,[$ctx,#36] @ clear is_base2_26
+ add $ctx,$ctx,#20
+
+#ifdef __thumb2__
+ it eq
+#endif
+ moveq r0,#0
+ beq .Lno_key
+
+#if __ARM_MAX_ARCH__>=7
+ mov r3,#-1
+ str r3,[$ctx,#28] @ impossible key power value
+# ifndef __KERNEL__
+ adr r11,.Lpoly1305_init
+ ldr r12,.LOPENSSL_armcap
+# endif
+#endif
+ ldrb r4,[$inp,#0]
+ mov r10,#0x0fffffff
+ ldrb r5,[$inp,#1]
+ and r3,r10,#-4 @ 0x0ffffffc
+ ldrb r6,[$inp,#2]
+ ldrb r7,[$inp,#3]
+ orr r4,r4,r5,lsl#8
+ ldrb r5,[$inp,#4]
+ orr r4,r4,r6,lsl#16
+ ldrb r6,[$inp,#5]
+ orr r4,r4,r7,lsl#24
+ ldrb r7,[$inp,#6]
+ and r4,r4,r10
+
+#if __ARM_MAX_ARCH__>=7 && !defined(__KERNEL__)
+# if !defined(_WIN32)
+ ldr r12,[r11,r12] @ OPENSSL_armcap_P
+# endif
+# if defined(__APPLE__) || defined(_WIN32)
+ ldr r12,[r12]
+# endif
+#endif
+ ldrb r8,[$inp,#7]
+ orr r5,r5,r6,lsl#8
+ ldrb r6,[$inp,#8]
+ orr r5,r5,r7,lsl#16
+ ldrb r7,[$inp,#9]
+ orr r5,r5,r8,lsl#24
+ ldrb r8,[$inp,#10]
+ and r5,r5,r3
+
+#if __ARM_MAX_ARCH__>=7 && !defined(__KERNEL__)
+ tst r12,#ARMV7_NEON @ check for NEON
+# ifdef __thumb2__
+ adr r9,.Lpoly1305_blocks_neon
+ adr r11,.Lpoly1305_blocks
+ it ne
+ movne r11,r9
+ adr r12,.Lpoly1305_emit
+ orr r11,r11,#1 @ thumb-ify addresses
+ orr r12,r12,#1
+# else
+ add r12,r11,#(.Lpoly1305_emit-.Lpoly1305_init)
+ ite eq
+ addeq r11,r11,#(.Lpoly1305_blocks-.Lpoly1305_init)
+ addne r11,r11,#(.Lpoly1305_blocks_neon-.Lpoly1305_init)
+# endif
+#endif
+ ldrb r9,[$inp,#11]
+ orr r6,r6,r7,lsl#8
+ ldrb r7,[$inp,#12]
+ orr r6,r6,r8,lsl#16
+ ldrb r8,[$inp,#13]
+ orr r6,r6,r9,lsl#24
+ ldrb r9,[$inp,#14]
+ and r6,r6,r3
+
+ ldrb r10,[$inp,#15]
+ orr r7,r7,r8,lsl#8
+ str r4,[$ctx,#0]
+ orr r7,r7,r9,lsl#16
+ str r5,[$ctx,#4]
+ orr r7,r7,r10,lsl#24
+ str r6,[$ctx,#8]
+ and r7,r7,r3
+ str r7,[$ctx,#12]
+#if __ARM_MAX_ARCH__>=7 && !defined(__KERNEL__)
+ stmia r2,{r11,r12} @ fill functions table
+ mov r0,#1
+#else
+ mov r0,#0
+#endif
+.Lno_key:
+ ldmia sp!,{r4-r11}
+#if __ARM_ARCH__>=5
+ ret @ bx lr
+#else
+ tst lr,#1
+ moveq pc,lr @ be binary compatible with V4, yet
+ bx lr @ interoperable with Thumb ISA:-)
+#endif
+.size poly1305_init,.-poly1305_init
+___
+{
+my ($h0,$h1,$h2,$h3,$h4,$r0,$r1,$r2,$r3)=map("r$_",(4..12));
+my ($s1,$s2,$s3)=($r1,$r2,$r3);
+
+$code.=<<___;
+.type poly1305_blocks,%function
+.align 5
+poly1305_blocks:
+.Lpoly1305_blocks:
+ stmdb sp!,{r3-r11,lr}
+
+ ands $len,$len,#-16
+ beq .Lno_data
+
+ add $len,$len,$inp @ end pointer
+ sub sp,sp,#32
+
+#if __ARM_ARCH__<7
+ ldmia $ctx,{$h0-$r3} @ load context
+ add $ctx,$ctx,#20
+ str $len,[sp,#16] @ offload stuff
+ str $ctx,[sp,#12]
+#else
+ ldr lr,[$ctx,#36] @ is_base2_26
+ ldmia $ctx!,{$h0-$h4} @ load hash value
+ str $len,[sp,#16] @ offload stuff
+ str $ctx,[sp,#12]
+
+ adds $r0,$h0,$h1,lsl#26 @ base 2^26 -> base 2^32
+ mov $r1,$h1,lsr#6
+ adcs $r1,$r1,$h2,lsl#20
+ mov $r2,$h2,lsr#12
+ adcs $r2,$r2,$h3,lsl#14
+ mov $r3,$h3,lsr#18
+ adcs $r3,$r3,$h4,lsl#8
+ mov $len,#0
+ teq lr,#0
+ str $len,[$ctx,#16] @ clear is_base2_26
+ adc $len,$len,$h4,lsr#24
+
+ itttt ne
+ movne $h0,$r0 @ choose between radixes
+ movne $h1,$r1
+ movne $h2,$r2
+ movne $h3,$r3
+ ldmia $ctx,{$r0-$r3} @ load key
+ it ne
+ movne $h4,$len
+#endif
+
+ mov lr,$inp
+ cmp $padbit,#0
+ str $r1,[sp,#20]
+ str $r2,[sp,#24]
+ str $r3,[sp,#28]
+ b .Loop
+
+.align 4
+.Loop:
+#if __ARM_ARCH__<7
+ ldrb r0,[lr],#16 @ load input
+# ifdef __thumb2__
+ it hi
+# endif
+ addhi $h4,$h4,#1 @ 1<<128
+ ldrb r1,[lr,#-15]
+ ldrb r2,[lr,#-14]
+ ldrb r3,[lr,#-13]
+ orr r1,r0,r1,lsl#8
+ ldrb r0,[lr,#-12]
+ orr r2,r1,r2,lsl#16
+ ldrb r1,[lr,#-11]
+ orr r3,r2,r3,lsl#24
+ ldrb r2,[lr,#-10]
+ adds $h0,$h0,r3 @ accumulate input
+
+ ldrb r3,[lr,#-9]
+ orr r1,r0,r1,lsl#8
+ ldrb r0,[lr,#-8]
+ orr r2,r1,r2,lsl#16
+ ldrb r1,[lr,#-7]
+ orr r3,r2,r3,lsl#24
+ ldrb r2,[lr,#-6]
+ adcs $h1,$h1,r3
+
+ ldrb r3,[lr,#-5]
+ orr r1,r0,r1,lsl#8
+ ldrb r0,[lr,#-4]
+ orr r2,r1,r2,lsl#16
+ ldrb r1,[lr,#-3]
+ orr r3,r2,r3,lsl#24
+ ldrb r2,[lr,#-2]
+ adcs $h2,$h2,r3
+
+ ldrb r3,[lr,#-1]
+ orr r1,r0,r1,lsl#8
+ str lr,[sp,#8] @ offload input pointer
+ orr r2,r1,r2,lsl#16
+ add $s1,$r1,$r1,lsr#2
+ orr r3,r2,r3,lsl#24
+#else
+ ldr r0,[lr],#16 @ load input
+ it hi
+ addhi $h4,$h4,#1 @ padbit
+ ldr r1,[lr,#-12]
+ ldr r2,[lr,#-8]
+ ldr r3,[lr,#-4]
+# ifdef __ARMEB__
+ rev r0,r0
+ rev r1,r1
+ rev r2,r2
+ rev r3,r3
+# endif
+ adds $h0,$h0,r0 @ accumulate input
+ str lr,[sp,#8] @ offload input pointer
+ adcs $h1,$h1,r1
+ add $s1,$r1,$r1,lsr#2
+ adcs $h2,$h2,r2
+#endif
+ add $s2,$r2,$r2,lsr#2
+ adcs $h3,$h3,r3
+ add $s3,$r3,$r3,lsr#2
+
+ umull r2,r3,$h1,$r0
+ adc $h4,$h4,#0
+ umull r0,r1,$h0,$r0
+ umlal r2,r3,$h4,$s1
+ umlal r0,r1,$h3,$s1
+ ldr $r1,[sp,#20] @ reload $r1
+ umlal r2,r3,$h2,$s3
+ umlal r0,r1,$h1,$s3
+ umlal r2,r3,$h3,$s2
+ umlal r0,r1,$h2,$s2
+ umlal r2,r3,$h0,$r1
+ str r0,[sp,#0] @ future $h0
+ mul r0,$s2,$h4
+ ldr $r2,[sp,#24] @ reload $r2
+ adds r2,r2,r1 @ d1+=d0>>32
+ eor r1,r1,r1
+ adc lr,r3,#0 @ future $h2
+ str r2,[sp,#4] @ future $h1
+
+ mul r2,$s3,$h4
+ eor r3,r3,r3
+ umlal r0,r1,$h3,$s3
+ ldr $r3,[sp,#28] @ reload $r3
+ umlal r2,r3,$h3,$r0
+ umlal r0,r1,$h2,$r0
+ umlal r2,r3,$h2,$r1
+ umlal r0,r1,$h1,$r1
+ umlal r2,r3,$h1,$r2
+ umlal r0,r1,$h0,$r2
+ umlal r2,r3,$h0,$r3
+ ldr $h0,[sp,#0]
+ mul $h4,$r0,$h4
+ ldr $h1,[sp,#4]
+
+ adds $h2,lr,r0 @ d2+=d1>>32
+ ldr lr,[sp,#8] @ reload input pointer
+ adc r1,r1,#0
+ adds $h3,r2,r1 @ d3+=d2>>32
+ ldr r0,[sp,#16] @ reload end pointer
+ adc r3,r3,#0
+ add $h4,$h4,r3 @ h4+=d3>>32
+
+ and r1,$h4,#-4
+ and $h4,$h4,#3
+ add r1,r1,r1,lsr#2 @ *=5
+ adds $h0,$h0,r1
+ adcs $h1,$h1,#0
+ adcs $h2,$h2,#0
+ adcs $h3,$h3,#0
+ adc $h4,$h4,#0
+
+ cmp r0,lr @ done yet?
+ bhi .Loop
+
+ ldr $ctx,[sp,#12]
+ add sp,sp,#32
+ stmdb $ctx,{$h0-$h4} @ store the result
+
+.Lno_data:
+#if __ARM_ARCH__>=5
+ ldmia sp!,{r3-r11,pc}
+#else
+ ldmia sp!,{r3-r11,lr}
+ tst lr,#1
+ moveq pc,lr @ be binary compatible with V4, yet
+ bx lr @ interoperable with Thumb ISA:-)
+#endif
+.size poly1305_blocks,.-poly1305_blocks
+___
+}
+{
+my ($ctx,$mac,$nonce)=map("r$_",(0..2));
+my ($h0,$h1,$h2,$h3,$h4,$g0,$g1,$g2,$g3)=map("r$_",(3..11));
+my $g4=$ctx;
+
+$code.=<<___;
+.type poly1305_emit,%function
+.align 5
+poly1305_emit:
+.Lpoly1305_emit:
+ stmdb sp!,{r4-r11}
+
+ ldmia $ctx,{$h0-$h4}
+
+#if __ARM_ARCH__>=7
+ ldr ip,[$ctx,#36] @ is_base2_26
+
+ adds $g0,$h0,$h1,lsl#26 @ base 2^26 -> base 2^32
+ mov $g1,$h1,lsr#6
+ adcs $g1,$g1,$h2,lsl#20
+ mov $g2,$h2,lsr#12
+ adcs $g2,$g2,$h3,lsl#14
+ mov $g3,$h3,lsr#18
+ adcs $g3,$g3,$h4,lsl#8
+ mov $g4,#0
+ adc $g4,$g4,$h4,lsr#24
+
+ tst ip,ip
+ itttt ne
+ movne $h0,$g0
+ movne $h1,$g1
+ movne $h2,$g2
+ movne $h3,$g3
+ it ne
+ movne $h4,$g4
+#endif
+
+ adds $g0,$h0,#5 @ compare to modulus
+ adcs $g1,$h1,#0
+ adcs $g2,$h2,#0
+ adcs $g3,$h3,#0
+ adc $g4,$h4,#0
+ tst $g4,#4 @ did it carry/borrow?
+
+#ifdef __thumb2__
+ it ne
+#endif
+ movne $h0,$g0
+ ldr $g0,[$nonce,#0]
+#ifdef __thumb2__
+ it ne
+#endif
+ movne $h1,$g1
+ ldr $g1,[$nonce,#4]
+#ifdef __thumb2__
+ it ne
+#endif
+ movne $h2,$g2
+ ldr $g2,[$nonce,#8]
+#ifdef __thumb2__
+ it ne
+#endif
+ movne $h3,$g3
+ ldr $g3,[$nonce,#12]
+
+ adds $h0,$h0,$g0
+ adcs $h1,$h1,$g1
+ adcs $h2,$h2,$g2
+ adc $h3,$h3,$g3
+
+#if __ARM_ARCH__>=7
+# ifdef __ARMEB__
+ rev $h0,$h0
+ rev $h1,$h1
+ rev $h2,$h2
+ rev $h3,$h3
+# endif
+ str $h0,[$mac,#0]
+ str $h1,[$mac,#4]
+ str $h2,[$mac,#8]
+ str $h3,[$mac,#12]
+#else
+ strb $h0,[$mac,#0]
+ mov $h0,$h0,lsr#8
+ strb $h1,[$mac,#4]
+ mov $h1,$h1,lsr#8
+ strb $h2,[$mac,#8]
+ mov $h2,$h2,lsr#8
+ strb $h3,[$mac,#12]
+ mov $h3,$h3,lsr#8
+
+ strb $h0,[$mac,#1]
+ mov $h0,$h0,lsr#8
+ strb $h1,[$mac,#5]
+ mov $h1,$h1,lsr#8
+ strb $h2,[$mac,#9]
+ mov $h2,$h2,lsr#8
+ strb $h3,[$mac,#13]
+ mov $h3,$h3,lsr#8
+
+ strb $h0,[$mac,#2]
+ mov $h0,$h0,lsr#8
+ strb $h1,[$mac,#6]
+ mov $h1,$h1,lsr#8
+ strb $h2,[$mac,#10]
+ mov $h2,$h2,lsr#8
+ strb $h3,[$mac,#14]
+ mov $h3,$h3,lsr#8
+
+ strb $h0,[$mac,#3]
+ strb $h1,[$mac,#7]
+ strb $h2,[$mac,#11]
+ strb $h3,[$mac,#15]
+#endif
+ ldmia sp!,{r4-r11}
+#if __ARM_ARCH__>=5
+ ret @ bx lr
+#else
+ tst lr,#1
+ moveq pc,lr @ be binary compatible with V4, yet
+ bx lr @ interoperable with Thumb ISA:-)
+#endif
+.size poly1305_emit,.-poly1305_emit
+___
+{
+my ($R0,$R1,$S1,$R2,$S2,$R3,$S3,$R4,$S4) = map("d$_",(0..9));
+my ($D0,$D1,$D2,$D3,$D4, $H0,$H1,$H2,$H3,$H4) = map("q$_",(5..14));
+my ($T0,$T1,$MASK) = map("q$_",(15,4,0));
+
+my ($in2,$zeros,$tbl0,$tbl1) = map("r$_",(4..7));
+
+$code.=<<___;
+#if __ARM_MAX_ARCH__>=7
+.fpu neon
+
+.type poly1305_init_neon,%function
+.align 5
+poly1305_init_neon:
+.Lpoly1305_init_neon:
+ ldr r3,[$ctx,#48] @ first table element
+ cmp r3,#-1 @ is value impossible?
+ bne .Lno_init_neon
+
+ ldr r4,[$ctx,#20] @ load key base 2^32
+ ldr r5,[$ctx,#24]
+ ldr r6,[$ctx,#28]
+ ldr r7,[$ctx,#32]
+
+ and r2,r4,#0x03ffffff @ base 2^32 -> base 2^26
+ mov r3,r4,lsr#26
+ mov r4,r5,lsr#20
+ orr r3,r3,r5,lsl#6
+ mov r5,r6,lsr#14
+ orr r4,r4,r6,lsl#12
+ mov r6,r7,lsr#8
+ orr r5,r5,r7,lsl#18
+ and r3,r3,#0x03ffffff
+ and r4,r4,#0x03ffffff
+ and r5,r5,#0x03ffffff
+
+ vdup.32 $R0,r2 @ r^1 in both lanes
+ add r2,r3,r3,lsl#2 @ *5
+ vdup.32 $R1,r3
+ add r3,r4,r4,lsl#2
+ vdup.32 $S1,r2
+ vdup.32 $R2,r4
+ add r4,r5,r5,lsl#2
+ vdup.32 $S2,r3
+ vdup.32 $R3,r5
+ add r5,r6,r6,lsl#2
+ vdup.32 $S3,r4
+ vdup.32 $R4,r6
+ vdup.32 $S4,r5
+
+ mov $zeros,#2 @ counter
+
+.Lsquare_neon:
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ @ d0 = h0*r0 + h4*5*r1 + h3*5*r2 + h2*5*r3 + h1*5*r4
+ @ d1 = h1*r0 + h0*r1 + h4*5*r2 + h3*5*r3 + h2*5*r4
+ @ d2 = h2*r0 + h1*r1 + h0*r2 + h4*5*r3 + h3*5*r4
+ @ d3 = h3*r0 + h2*r1 + h1*r2 + h0*r3 + h4*5*r4
+ @ d4 = h4*r0 + h3*r1 + h2*r2 + h1*r3 + h0*r4
+
+ vmull.u32 $D0,$R0,${R0}[1]
+ vmull.u32 $D1,$R1,${R0}[1]
+ vmull.u32 $D2,$R2,${R0}[1]
+ vmull.u32 $D3,$R3,${R0}[1]
+ vmull.u32 $D4,$R4,${R0}[1]
+
+ vmlal.u32 $D0,$R4,${S1}[1]
+ vmlal.u32 $D1,$R0,${R1}[1]
+ vmlal.u32 $D2,$R1,${R1}[1]
+ vmlal.u32 $D3,$R2,${R1}[1]
+ vmlal.u32 $D4,$R3,${R1}[1]
+
+ vmlal.u32 $D0,$R3,${S2}[1]
+ vmlal.u32 $D1,$R4,${S2}[1]
+ vmlal.u32 $D3,$R1,${R2}[1]
+ vmlal.u32 $D2,$R0,${R2}[1]
+ vmlal.u32 $D4,$R2,${R2}[1]
+
+ vmlal.u32 $D0,$R2,${S3}[1]
+ vmlal.u32 $D3,$R0,${R3}[1]
+ vmlal.u32 $D1,$R3,${S3}[1]
+ vmlal.u32 $D2,$R4,${S3}[1]
+ vmlal.u32 $D4,$R1,${R3}[1]
+
+ vmlal.u32 $D3,$R4,${S4}[1]
+ vmlal.u32 $D0,$R1,${S4}[1]
+ vmlal.u32 $D1,$R2,${S4}[1]
+ vmlal.u32 $D2,$R3,${S4}[1]
+ vmlal.u32 $D4,$R0,${R4}[1]
+
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ @ lazy reduction as discussed in "NEON crypto" by D.J. Bernstein
+ @ and P. Schwabe
+ @
+ @ H0>>+H1>>+H2>>+H3>>+H4
+ @ H3>>+H4>>*5+H0>>+H1
+ @
+ @ Trivia.
+ @
+ @ Result of multiplication of n-bit number by m-bit number is
+ @ n+m bits wide. However! Even though 2^n is a n+1-bit number,
+ @ m-bit number multiplied by 2^n is still n+m bits wide.
+ @
+ @ Sum of two n-bit numbers is n+1 bits wide, sum of three - n+2,
+ @ and so is sum of four. Sum of 2^m n-m-bit numbers and n-bit
+ @ one is n+1 bits wide.
+ @
+ @ >>+ denotes Hnext += Hn>>26, Hn &= 0x3ffffff. This means that
+ @ H0, H2, H3 are guaranteed to be 26 bits wide, while H1 and H4
+ @ can be 27. However! In cases when their width exceeds 26 bits
+ @ they are limited by 2^26+2^6. This in turn means that *sum*
+ @ of the products with these values can still be viewed as sum
+ @ of 52-bit numbers as long as the amount of addends is not a
+ @ power of 2. For example,
+ @
+ @ H4 = H4*R0 + H3*R1 + H2*R2 + H1*R3 + H0 * R4,
+ @
+ @ which can't be larger than 5 * (2^26 + 2^6) * (2^26 + 2^6), or
+ @ 5 * (2^52 + 2*2^32 + 2^12), which in turn is smaller than
+ @ 8 * (2^52) or 2^55. However, the value is then multiplied by
+ @ by 5, so we should be looking at 5 * 5 * (2^52 + 2^33 + 2^12),
+ @ which is less than 32 * (2^52) or 2^57. And when processing
+ @ data we are looking at triple as many addends...
+ @
+ @ In key setup procedure pre-reduced H0 is limited by 5*4+1 and
+ @ 5*H4 - by 5*5 52-bit addends, or 57 bits. But when hashing the
+ @ input H0 is limited by (5*4+1)*3 addends, or 58 bits, while
+ @ 5*H4 by 5*5*3, or 59[!] bits. How is this relevant? vmlal.u32
+ @ instruction accepts 2x32-bit input and writes 2x64-bit result.
+ @ This means that result of reduction have to be compressed upon
+ @ loop wrap-around. This can be done in the process of reduction
+ @ to minimize amount of instructions [as well as amount of
+ @ 128-bit instructions, which benefits low-end processors], but
+ @ one has to watch for H2 (which is narrower than H0) and 5*H4
+ @ not being wider than 58 bits, so that result of right shift
+ @ by 26 bits fits in 32 bits. This is also useful on x86,
+ @ because it allows to use paddd in place for paddq, which
+ @ benefits Atom, where paddq is ridiculously slow.
+
+ vshr.u64 $T0,$D3,#26
+ vmovn.i64 $D3#lo,$D3
+ vshr.u64 $T1,$D0,#26
+ vmovn.i64 $D0#lo,$D0
+ vadd.i64 $D4,$D4,$T0 @ h3 -> h4
+ vbic.i32 $D3#lo,#0xfc000000 @ &=0x03ffffff
+ vadd.i64 $D1,$D1,$T1 @ h0 -> h1
+ vbic.i32 $D0#lo,#0xfc000000
+
+ vshrn.u64 $T0#lo,$D4,#26
+ vmovn.i64 $D4#lo,$D4
+ vshr.u64 $T1,$D1,#26
+ vmovn.i64 $D1#lo,$D1
+ vadd.i64 $D2,$D2,$T1 @ h1 -> h2
+ vbic.i32 $D4#lo,#0xfc000000
+ vbic.i32 $D1#lo,#0xfc000000
+
+ vadd.i32 $D0#lo,$D0#lo,$T0#lo
+ vshl.u32 $T0#lo,$T0#lo,#2
+ vshrn.u64 $T1#lo,$D2,#26
+ vmovn.i64 $D2#lo,$D2
+ vadd.i32 $D0#lo,$D0#lo,$T0#lo @ h4 -> h0
+ vadd.i32 $D3#lo,$D3#lo,$T1#lo @ h2 -> h3
+ vbic.i32 $D2#lo,#0xfc000000
+
+ vshr.u32 $T0#lo,$D0#lo,#26
+ vbic.i32 $D0#lo,#0xfc000000
+ vshr.u32 $T1#lo,$D3#lo,#26
+ vbic.i32 $D3#lo,#0xfc000000
+ vadd.i32 $D1#lo,$D1#lo,$T0#lo @ h0 -> h1
+ vadd.i32 $D4#lo,$D4#lo,$T1#lo @ h3 -> h4
+
+ subs $zeros,$zeros,#1
+ beq .Lsquare_break_neon
+
+ add $tbl0,$ctx,#(48+0*9*4)
+ add $tbl1,$ctx,#(48+1*9*4)
+
+ vtrn.32 $R0,$D0#lo @ r^2:r^1
+ vtrn.32 $R2,$D2#lo
+ vtrn.32 $R3,$D3#lo
+ vtrn.32 $R1,$D1#lo
+ vtrn.32 $R4,$D4#lo
+
+ vshl.u32 $S2,$R2,#2 @ *5
+ vshl.u32 $S3,$R3,#2
+ vshl.u32 $S1,$R1,#2
+ vshl.u32 $S4,$R4,#2
+ vadd.i32 $S2,$S2,$R2
+ vadd.i32 $S1,$S1,$R1
+ vadd.i32 $S3,$S3,$R3
+ vadd.i32 $S4,$S4,$R4
+
+ vst4.32 {${R0}[0],${R1}[0],${S1}[0],${R2}[0]},[$tbl0]!
+ vst4.32 {${R0}[1],${R1}[1],${S1}[1],${R2}[1]},[$tbl1]!
+ vst4.32 {${S2}[0],${R3}[0],${S3}[0],${R4}[0]},[$tbl0]!
+ vst4.32 {${S2}[1],${R3}[1],${S3}[1],${R4}[1]},[$tbl1]!
+ vst1.32 {${S4}[0]},[$tbl0,:32]
+ vst1.32 {${S4}[1]},[$tbl1,:32]
+
+ b .Lsquare_neon
+
+.align 4
+.Lsquare_break_neon:
+ add $tbl0,$ctx,#(48+2*4*9)
+ add $tbl1,$ctx,#(48+3*4*9)
+
+ vmov $R0,$D0#lo @ r^4:r^3
+ vshl.u32 $S1,$D1#lo,#2 @ *5
+ vmov $R1,$D1#lo
+ vshl.u32 $S2,$D2#lo,#2
+ vmov $R2,$D2#lo
+ vshl.u32 $S3,$D3#lo,#2
+ vmov $R3,$D3#lo
+ vshl.u32 $S4,$D4#lo,#2
+ vmov $R4,$D4#lo
+ vadd.i32 $S1,$S1,$D1#lo
+ vadd.i32 $S2,$S2,$D2#lo
+ vadd.i32 $S3,$S3,$D3#lo
+ vadd.i32 $S4,$S4,$D4#lo
+
+ vst4.32 {${R0}[0],${R1}[0],${S1}[0],${R2}[0]},[$tbl0]!
+ vst4.32 {${R0}[1],${R1}[1],${S1}[1],${R2}[1]},[$tbl1]!
+ vst4.32 {${S2}[0],${R3}[0],${S3}[0],${R4}[0]},[$tbl0]!
+ vst4.32 {${S2}[1],${R3}[1],${S3}[1],${R4}[1]},[$tbl1]!
+ vst1.32 {${S4}[0]},[$tbl0]
+ vst1.32 {${S4}[1]},[$tbl1]
+
+.Lno_init_neon:
+ ret @ bx lr
+.size poly1305_init_neon,.-poly1305_init_neon
+
+.type poly1305_blocks_neon,%function
+.align 5
+poly1305_blocks_neon:
+.Lpoly1305_blocks_neon:
+ ldr ip,[$ctx,#36] @ is_base2_26
+
+ cmp $len,#64
+ blo .Lpoly1305_blocks
+
+ stmdb sp!,{r4-r7}
+ vstmdb sp!,{d8-d15} @ ABI specification says so
+
+ tst ip,ip @ is_base2_26?
+ bne .Lbase2_26_neon
+
+ stmdb sp!,{r1-r3,lr}
+ bl .Lpoly1305_init_neon
+
+ ldr r4,[$ctx,#0] @ load hash value base 2^32
+ ldr r5,[$ctx,#4]
+ ldr r6,[$ctx,#8]
+ ldr r7,[$ctx,#12]
+ ldr ip,[$ctx,#16]
+
+ and r2,r4,#0x03ffffff @ base 2^32 -> base 2^26
+ mov r3,r4,lsr#26
+ veor $D0#lo,$D0#lo,$D0#lo
+ mov r4,r5,lsr#20
+ orr r3,r3,r5,lsl#6
+ veor $D1#lo,$D1#lo,$D1#lo
+ mov r5,r6,lsr#14
+ orr r4,r4,r6,lsl#12
+ veor $D2#lo,$D2#lo,$D2#lo
+ mov r6,r7,lsr#8
+ orr r5,r5,r7,lsl#18
+ veor $D3#lo,$D3#lo,$D3#lo
+ and r3,r3,#0x03ffffff
+ orr r6,r6,ip,lsl#24
+ veor $D4#lo,$D4#lo,$D4#lo
+ and r4,r4,#0x03ffffff
+ mov r1,#1
+ and r5,r5,#0x03ffffff
+ str r1,[$ctx,#36] @ set is_base2_26
+
+ vmov.32 $D0#lo[0],r2
+ vmov.32 $D1#lo[0],r3
+ vmov.32 $D2#lo[0],r4
+ vmov.32 $D3#lo[0],r5
+ vmov.32 $D4#lo[0],r6
+ adr $zeros,.Lzeros
+
+ ldmia sp!,{r1-r3,lr}
+ b .Lhash_loaded
+
+.align 4
+.Lbase2_26_neon:
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ @ load hash value
+
+ veor $D0#lo,$D0#lo,$D0#lo
+ veor $D1#lo,$D1#lo,$D1#lo
+ veor $D2#lo,$D2#lo,$D2#lo
+ veor $D3#lo,$D3#lo,$D3#lo
+ veor $D4#lo,$D4#lo,$D4#lo
+ vld4.32 {$D0#lo[0],$D1#lo[0],$D2#lo[0],$D3#lo[0]},[$ctx]!
+ adr $zeros,.Lzeros
+ vld1.32 {$D4#lo[0]},[$ctx]
+ sub $ctx,$ctx,#16 @ rewind
+
+.Lhash_loaded:
+ add $in2,$inp,#32
+ mov $padbit,$padbit,lsl#24
+ tst $len,#31
+ beq .Leven
+
+ vld4.32 {$H0#lo[0],$H1#lo[0],$H2#lo[0],$H3#lo[0]},[$inp]!
+ vmov.32 $H4#lo[0],$padbit
+ sub $len,$len,#16
+ add $in2,$inp,#32
+
+# ifdef __ARMEB__
+ vrev32.8 $H0,$H0
+ vrev32.8 $H3,$H3
+ vrev32.8 $H1,$H1
+ vrev32.8 $H2,$H2
+# endif
+ vsri.u32 $H4#lo,$H3#lo,#8 @ base 2^32 -> base 2^26
+ vshl.u32 $H3#lo,$H3#lo,#18
+
+ vsri.u32 $H3#lo,$H2#lo,#14
+ vshl.u32 $H2#lo,$H2#lo,#12
+ vadd.i32 $H4#hi,$H4#lo,$D4#lo @ add hash value and move to #hi
+
+ vbic.i32 $H3#lo,#0xfc000000
+ vsri.u32 $H2#lo,$H1#lo,#20
+ vshl.u32 $H1#lo,$H1#lo,#6
+
+ vbic.i32 $H2#lo,#0xfc000000
+ vsri.u32 $H1#lo,$H0#lo,#26
+ vadd.i32 $H3#hi,$H3#lo,$D3#lo
+
+ vbic.i32 $H0#lo,#0xfc000000
+ vbic.i32 $H1#lo,#0xfc000000
+ vadd.i32 $H2#hi,$H2#lo,$D2#lo
+
+ vadd.i32 $H0#hi,$H0#lo,$D0#lo
+ vadd.i32 $H1#hi,$H1#lo,$D1#lo
+
+ mov $tbl1,$zeros
+ add $tbl0,$ctx,#48
+
+ cmp $len,$len
+ b .Long_tail
+
+.align 4
+.Leven:
+ subs $len,$len,#64
+ it lo
+ movlo $in2,$zeros
+
+ vmov.i32 $H4,#1<<24 @ padbit, yes, always
+ vld4.32 {$H0#lo,$H1#lo,$H2#lo,$H3#lo},[$inp] @ inp[0:1]
+ add $inp,$inp,#64
+ vld4.32 {$H0#hi,$H1#hi,$H2#hi,$H3#hi},[$in2] @ inp[2:3] (or 0)
+ add $in2,$in2,#64
+ itt hi
+ addhi $tbl1,$ctx,#(48+1*9*4)
+ addhi $tbl0,$ctx,#(48+3*9*4)
+
+# ifdef __ARMEB__
+ vrev32.8 $H0,$H0
+ vrev32.8 $H3,$H3
+ vrev32.8 $H1,$H1
+ vrev32.8 $H2,$H2
+# endif
+ vsri.u32 $H4,$H3,#8 @ base 2^32 -> base 2^26
+ vshl.u32 $H3,$H3,#18
+
+ vsri.u32 $H3,$H2,#14
+ vshl.u32 $H2,$H2,#12
+
+ vbic.i32 $H3,#0xfc000000
+ vsri.u32 $H2,$H1,#20
+ vshl.u32 $H1,$H1,#6
+
+ vbic.i32 $H2,#0xfc000000
+ vsri.u32 $H1,$H0,#26
+
+ vbic.i32 $H0,#0xfc000000
+ vbic.i32 $H1,#0xfc000000
+
+ bls .Lskip_loop
+
+ vld4.32 {${R0}[1],${R1}[1],${S1}[1],${R2}[1]},[$tbl1]! @ load r^2
+ vld4.32 {${R0}[0],${R1}[0],${S1}[0],${R2}[0]},[$tbl0]! @ load r^4
+ vld4.32 {${S2}[1],${R3}[1],${S3}[1],${R4}[1]},[$tbl1]!
+ vld4.32 {${S2}[0],${R3}[0],${S3}[0],${R4}[0]},[$tbl0]!
+ b .Loop_neon
+
+.align 5
+.Loop_neon:
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ @ ((inp[0]*r^4+inp[2]*r^2+inp[4])*r^4+inp[6]*r^2
+ @ ((inp[1]*r^4+inp[3]*r^2+inp[5])*r^3+inp[7]*r
+ @ \___________________/
+ @ ((inp[0]*r^4+inp[2]*r^2+inp[4])*r^4+inp[6]*r^2+inp[8])*r^2
+ @ ((inp[1]*r^4+inp[3]*r^2+inp[5])*r^4+inp[7]*r^2+inp[9])*r
+ @ \___________________/ \____________________/
+ @
+ @ Note that we start with inp[2:3]*r^2. This is because it
+ @ doesn't depend on reduction in previous iteration.
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ @ d4 = h4*r0 + h3*r1 + h2*r2 + h1*r3 + h0*r4
+ @ d3 = h3*r0 + h2*r1 + h1*r2 + h0*r3 + h4*5*r4
+ @ d2 = h2*r0 + h1*r1 + h0*r2 + h4*5*r3 + h3*5*r4
+ @ d1 = h1*r0 + h0*r1 + h4*5*r2 + h3*5*r3 + h2*5*r4
+ @ d0 = h0*r0 + h4*5*r1 + h3*5*r2 + h2*5*r3 + h1*5*r4
+
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ @ inp[2:3]*r^2
+
+ vadd.i32 $H2#lo,$H2#lo,$D2#lo @ accumulate inp[0:1]
+ vmull.u32 $D2,$H2#hi,${R0}[1]
+ vadd.i32 $H0#lo,$H0#lo,$D0#lo
+ vmull.u32 $D0,$H0#hi,${R0}[1]
+ vadd.i32 $H3#lo,$H3#lo,$D3#lo
+ vmull.u32 $D3,$H3#hi,${R0}[1]
+ vmlal.u32 $D2,$H1#hi,${R1}[1]
+ vadd.i32 $H1#lo,$H1#lo,$D1#lo
+ vmull.u32 $D1,$H1#hi,${R0}[1]
+
+ vadd.i32 $H4#lo,$H4#lo,$D4#lo
+ vmull.u32 $D4,$H4#hi,${R0}[1]
+ subs $len,$len,#64
+ vmlal.u32 $D0,$H4#hi,${S1}[1]
+ it lo
+ movlo $in2,$zeros
+ vmlal.u32 $D3,$H2#hi,${R1}[1]
+ vld1.32 ${S4}[1],[$tbl1,:32]
+ vmlal.u32 $D1,$H0#hi,${R1}[1]
+ vmlal.u32 $D4,$H3#hi,${R1}[1]
+
+ vmlal.u32 $D0,$H3#hi,${S2}[1]
+ vmlal.u32 $D3,$H1#hi,${R2}[1]
+ vmlal.u32 $D4,$H2#hi,${R2}[1]
+ vmlal.u32 $D1,$H4#hi,${S2}[1]
+ vmlal.u32 $D2,$H0#hi,${R2}[1]
+
+ vmlal.u32 $D3,$H0#hi,${R3}[1]
+ vmlal.u32 $D0,$H2#hi,${S3}[1]
+ vmlal.u32 $D4,$H1#hi,${R3}[1]
+ vmlal.u32 $D1,$H3#hi,${S3}[1]
+ vmlal.u32 $D2,$H4#hi,${S3}[1]
+
+ vmlal.u32 $D3,$H4#hi,${S4}[1]
+ vmlal.u32 $D0,$H1#hi,${S4}[1]
+ vmlal.u32 $D4,$H0#hi,${R4}[1]
+ vmlal.u32 $D1,$H2#hi,${S4}[1]
+ vmlal.u32 $D2,$H3#hi,${S4}[1]
+
+ vld4.32 {$H0#hi,$H1#hi,$H2#hi,$H3#hi},[$in2] @ inp[2:3] (or 0)
+ add $in2,$in2,#64
+
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ @ (hash+inp[0:1])*r^4 and accumulate
+
+ vmlal.u32 $D3,$H3#lo,${R0}[0]
+ vmlal.u32 $D0,$H0#lo,${R0}[0]
+ vmlal.u32 $D4,$H4#lo,${R0}[0]
+ vmlal.u32 $D1,$H1#lo,${R0}[0]
+ vmlal.u32 $D2,$H2#lo,${R0}[0]
+ vld1.32 ${S4}[0],[$tbl0,:32]
+
+ vmlal.u32 $D3,$H2#lo,${R1}[0]
+ vmlal.u32 $D0,$H4#lo,${S1}[0]
+ vmlal.u32 $D4,$H3#lo,${R1}[0]
+ vmlal.u32 $D1,$H0#lo,${R1}[0]
+ vmlal.u32 $D2,$H1#lo,${R1}[0]
+
+ vmlal.u32 $D3,$H1#lo,${R2}[0]
+ vmlal.u32 $D0,$H3#lo,${S2}[0]
+ vmlal.u32 $D4,$H2#lo,${R2}[0]
+ vmlal.u32 $D1,$H4#lo,${S2}[0]
+ vmlal.u32 $D2,$H0#lo,${R2}[0]
+
+ vmlal.u32 $D3,$H0#lo,${R3}[0]
+ vmlal.u32 $D0,$H2#lo,${S3}[0]
+ vmlal.u32 $D4,$H1#lo,${R3}[0]
+ vmlal.u32 $D1,$H3#lo,${S3}[0]
+ vmlal.u32 $D3,$H4#lo,${S4}[0]
+
+ vmlal.u32 $D2,$H4#lo,${S3}[0]
+ vmlal.u32 $D0,$H1#lo,${S4}[0]
+ vmlal.u32 $D4,$H0#lo,${R4}[0]
+ vmov.i32 $H4,#1<<24 @ padbit, yes, always
+ vmlal.u32 $D1,$H2#lo,${S4}[0]
+ vmlal.u32 $D2,$H3#lo,${S4}[0]
+
+ vld4.32 {$H0#lo,$H1#lo,$H2#lo,$H3#lo},[$inp] @ inp[0:1]
+ add $inp,$inp,#64
+# ifdef __ARMEB__
+ vrev32.8 $H0,$H0
+ vrev32.8 $H1,$H1
+ vrev32.8 $H2,$H2
+ vrev32.8 $H3,$H3
+# endif
+
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ @ lazy reduction interleaved with base 2^32 -> base 2^26 of
+ @ inp[0:3] previously loaded to $H0-$H3 and smashed to $H0-$H4.
+
+ vshr.u64 $T0,$D3,#26
+ vmovn.i64 $D3#lo,$D3
+ vshr.u64 $T1,$D0,#26
+ vmovn.i64 $D0#lo,$D0
+ vadd.i64 $D4,$D4,$T0 @ h3 -> h4
+ vbic.i32 $D3#lo,#0xfc000000
+ vsri.u32 $H4,$H3,#8 @ base 2^32 -> base 2^26
+ vadd.i64 $D1,$D1,$T1 @ h0 -> h1
+ vshl.u32 $H3,$H3,#18
+ vbic.i32 $D0#lo,#0xfc000000
+
+ vshrn.u64 $T0#lo,$D4,#26
+ vmovn.i64 $D4#lo,$D4
+ vshr.u64 $T1,$D1,#26
+ vmovn.i64 $D1#lo,$D1
+ vadd.i64 $D2,$D2,$T1 @ h1 -> h2
+ vsri.u32 $H3,$H2,#14
+ vbic.i32 $D4#lo,#0xfc000000
+ vshl.u32 $H2,$H2,#12
+ vbic.i32 $D1#lo,#0xfc000000
+
+ vadd.i32 $D0#lo,$D0#lo,$T0#lo
+ vshl.u32 $T0#lo,$T0#lo,#2
+ vbic.i32 $H3,#0xfc000000
+ vshrn.u64 $T1#lo,$D2,#26
+ vmovn.i64 $D2#lo,$D2
+ vaddl.u32 $D0,$D0#lo,$T0#lo @ h4 -> h0 [widen for a sec]
+ vsri.u32 $H2,$H1,#20
+ vadd.i32 $D3#lo,$D3#lo,$T1#lo @ h2 -> h3
+ vshl.u32 $H1,$H1,#6
+ vbic.i32 $D2#lo,#0xfc000000
+ vbic.i32 $H2,#0xfc000000
+
+ vshrn.u64 $T0#lo,$D0,#26 @ re-narrow
+ vmovn.i64 $D0#lo,$D0
+ vsri.u32 $H1,$H0,#26
+ vbic.i32 $H0,#0xfc000000
+ vshr.u32 $T1#lo,$D3#lo,#26
+ vbic.i32 $D3#lo,#0xfc000000
+ vbic.i32 $D0#lo,#0xfc000000
+ vadd.i32 $D1#lo,$D1#lo,$T0#lo @ h0 -> h1
+ vadd.i32 $D4#lo,$D4#lo,$T1#lo @ h3 -> h4
+ vbic.i32 $H1,#0xfc000000
+
+ bhi .Loop_neon
+
+.Lskip_loop:
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ @ multiply (inp[0:1]+hash) or inp[2:3] by r^2:r^1
+
+ add $tbl1,$ctx,#(48+0*9*4)
+ add $tbl0,$ctx,#(48+1*9*4)
+ adds $len,$len,#32
+ it ne
+ movne $len,#0
+ bne .Long_tail
+
+ vadd.i32 $H2#hi,$H2#lo,$D2#lo @ add hash value and move to #hi
+ vadd.i32 $H0#hi,$H0#lo,$D0#lo
+ vadd.i32 $H3#hi,$H3#lo,$D3#lo
+ vadd.i32 $H1#hi,$H1#lo,$D1#lo
+ vadd.i32 $H4#hi,$H4#lo,$D4#lo
+
+.Long_tail:
+ vld4.32 {${R0}[1],${R1}[1],${S1}[1],${R2}[1]},[$tbl1]! @ load r^1
+ vld4.32 {${R0}[0],${R1}[0],${S1}[0],${R2}[0]},[$tbl0]! @ load r^2
+
+ vadd.i32 $H2#lo,$H2#lo,$D2#lo @ can be redundant
+ vmull.u32 $D2,$H2#hi,$R0
+ vadd.i32 $H0#lo,$H0#lo,$D0#lo
+ vmull.u32 $D0,$H0#hi,$R0
+ vadd.i32 $H3#lo,$H3#lo,$D3#lo
+ vmull.u32 $D3,$H3#hi,$R0
+ vadd.i32 $H1#lo,$H1#lo,$D1#lo
+ vmull.u32 $D1,$H1#hi,$R0
+ vadd.i32 $H4#lo,$H4#lo,$D4#lo
+ vmull.u32 $D4,$H4#hi,$R0
+
+ vmlal.u32 $D0,$H4#hi,$S1
+ vld4.32 {${S2}[1],${R3}[1],${S3}[1],${R4}[1]},[$tbl1]!
+ vmlal.u32 $D3,$H2#hi,$R1
+ vld4.32 {${S2}[0],${R3}[0],${S3}[0],${R4}[0]},[$tbl0]!
+ vmlal.u32 $D1,$H0#hi,$R1
+ vmlal.u32 $D4,$H3#hi,$R1
+ vmlal.u32 $D2,$H1#hi,$R1
+
+ vmlal.u32 $D3,$H1#hi,$R2
+ vld1.32 ${S4}[1],[$tbl1,:32]
+ vmlal.u32 $D0,$H3#hi,$S2
+ vld1.32 ${S4}[0],[$tbl0,:32]
+ vmlal.u32 $D4,$H2#hi,$R2
+ vmlal.u32 $D1,$H4#hi,$S2
+ vmlal.u32 $D2,$H0#hi,$R2
+
+ vmlal.u32 $D3,$H0#hi,$R3
+ it ne
+ addne $tbl1,$ctx,#(48+2*9*4)
+ vmlal.u32 $D0,$H2#hi,$S3
+ it ne
+ addne $tbl0,$ctx,#(48+3*9*4)
+ vmlal.u32 $D4,$H1#hi,$R3
+ vmlal.u32 $D1,$H3#hi,$S3
+ vmlal.u32 $D2,$H4#hi,$S3
+
+ vmlal.u32 $D3,$H4#hi,$S4
+ vorn $MASK,$MASK,$MASK @ all-ones, can be redundant
+ vmlal.u32 $D0,$H1#hi,$S4
+ vshr.u64 $MASK,$MASK,#38
+ vmlal.u32 $D4,$H0#hi,$R4
+ vmlal.u32 $D1,$H2#hi,$S4
+ vmlal.u32 $D2,$H3#hi,$S4
+
+ beq .Lshort_tail
+
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ @ (hash+inp[0:1])*r^4:r^3 and accumulate
+
+ vld4.32 {${R0}[1],${R1}[1],${S1}[1],${R2}[1]},[$tbl1]! @ load r^3
+ vld4.32 {${R0}[0],${R1}[0],${S1}[0],${R2}[0]},[$tbl0]! @ load r^4
+
+ vmlal.u32 $D2,$H2#lo,$R0
+ vmlal.u32 $D0,$H0#lo,$R0
+ vmlal.u32 $D3,$H3#lo,$R0
+ vmlal.u32 $D1,$H1#lo,$R0
+ vmlal.u32 $D4,$H4#lo,$R0
+
+ vmlal.u32 $D0,$H4#lo,$S1
+ vld4.32 {${S2}[1],${R3}[1],${S3}[1],${R4}[1]},[$tbl1]!
+ vmlal.u32 $D3,$H2#lo,$R1
+ vld4.32 {${S2}[0],${R3}[0],${S3}[0],${R4}[0]},[$tbl0]!
+ vmlal.u32 $D1,$H0#lo,$R1
+ vmlal.u32 $D4,$H3#lo,$R1
+ vmlal.u32 $D2,$H1#lo,$R1
+
+ vmlal.u32 $D3,$H1#lo,$R2
+ vld1.32 ${S4}[1],[$tbl1,:32]
+ vmlal.u32 $D0,$H3#lo,$S2
+ vld1.32 ${S4}[0],[$tbl0,:32]
+ vmlal.u32 $D4,$H2#lo,$R2
+ vmlal.u32 $D1,$H4#lo,$S2
+ vmlal.u32 $D2,$H0#lo,$R2
+
+ vmlal.u32 $D3,$H0#lo,$R3
+ vmlal.u32 $D0,$H2#lo,$S3
+ vmlal.u32 $D4,$H1#lo,$R3
+ vmlal.u32 $D1,$H3#lo,$S3
+ vmlal.u32 $D2,$H4#lo,$S3
+
+ vmlal.u32 $D3,$H4#lo,$S4
+ vorn $MASK,$MASK,$MASK @ all-ones
+ vmlal.u32 $D0,$H1#lo,$S4
+ vshr.u64 $MASK,$MASK,#38
+ vmlal.u32 $D4,$H0#lo,$R4
+ vmlal.u32 $D1,$H2#lo,$S4
+ vmlal.u32 $D2,$H3#lo,$S4
+
+.Lshort_tail:
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ @ horizontal addition
+
+ vadd.i64 $D3#lo,$D3#lo,$D3#hi
+ vadd.i64 $D0#lo,$D0#lo,$D0#hi
+ vadd.i64 $D4#lo,$D4#lo,$D4#hi
+ vadd.i64 $D1#lo,$D1#lo,$D1#hi
+ vadd.i64 $D2#lo,$D2#lo,$D2#hi
+
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ @ lazy reduction, but without narrowing
+
+ vshr.u64 $T0,$D3,#26
+ vand.i64 $D3,$D3,$MASK
+ vshr.u64 $T1,$D0,#26
+ vand.i64 $D0,$D0,$MASK
+ vadd.i64 $D4,$D4,$T0 @ h3 -> h4
+ vadd.i64 $D1,$D1,$T1 @ h0 -> h1
+
+ vshr.u64 $T0,$D4,#26
+ vand.i64 $D4,$D4,$MASK
+ vshr.u64 $T1,$D1,#26
+ vand.i64 $D1,$D1,$MASK
+ vadd.i64 $D2,$D2,$T1 @ h1 -> h2
+
+ vadd.i64 $D0,$D0,$T0
+ vshl.u64 $T0,$T0,#2
+ vshr.u64 $T1,$D2,#26
+ vand.i64 $D2,$D2,$MASK
+ vadd.i64 $D0,$D0,$T0 @ h4 -> h0
+ vadd.i64 $D3,$D3,$T1 @ h2 -> h3
+
+ vshr.u64 $T0,$D0,#26
+ vand.i64 $D0,$D0,$MASK
+ vshr.u64 $T1,$D3,#26
+ vand.i64 $D3,$D3,$MASK
+ vadd.i64 $D1,$D1,$T0 @ h0 -> h1
+ vadd.i64 $D4,$D4,$T1 @ h3 -> h4
+
+ cmp $len,#0
+ bne .Leven
+
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ @ store hash value
+
+ vst4.32 {$D0#lo[0],$D1#lo[0],$D2#lo[0],$D3#lo[0]},[$ctx]!
+ vst1.32 {$D4#lo[0]},[$ctx]
+
+ vldmia sp!,{d8-d15} @ epilogue
+ ldmia sp!,{r4-r7}
+ ret @ bx lr
+.size poly1305_blocks_neon,.-poly1305_blocks_neon
+
+.align 5
+.Lzeros:
+.long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
+#ifndef __KERNEL__
+.LOPENSSL_armcap:
+# ifdef _WIN32
+.word OPENSSL_armcap_P
+# else
+.word OPENSSL_armcap_P-.Lpoly1305_init
+# endif
+.comm OPENSSL_armcap_P,4,4
+.hidden OPENSSL_armcap_P
+#endif
+#endif
+___
+} }
+$code.=<<___;
+.asciz "Poly1305 for ARMv4/NEON, CRYPTOGAMS by \@dot-asm"
+.align 2
+___
+
+foreach (split("\n",$code)) {
+ s/\`([^\`]*)\`/eval $1/geo;
+
+ s/\bq([0-9]+)#(lo|hi)/sprintf "d%d",2*$1+($2 eq "hi")/geo or
+ s/\bret\b/bx lr/go or
+ s/\bbx\s+lr\b/.word\t0xe12fff1e/go; # make it possible to compile with -march=armv4
+
+ print $_,"\n";
+}
+close STDOUT; # enforce flush
diff --git a/arch/arm/crypto/poly1305-core.S_shipped b/arch/arm/crypto/poly1305-core.S_shipped
new file mode 100644
index 0000000..37b71d9
--- /dev/null
+++ b/arch/arm/crypto/poly1305-core.S_shipped
@@ -0,0 +1,1158 @@
+#ifndef __KERNEL__
+# include "arm_arch.h"
+#else
+# define __ARM_ARCH__ __LINUX_ARM_ARCH__
+# define __ARM_MAX_ARCH__ __LINUX_ARM_ARCH__
+# define poly1305_init poly1305_init_arm
+# define poly1305_blocks poly1305_blocks_arm
+# define poly1305_emit poly1305_emit_arm
+.globl poly1305_blocks_neon
+#endif
+
+#if defined(__thumb2__)
+.syntax unified
+.thumb
+#else
+.code 32
+#endif
+
+.text
+
+.globl poly1305_emit
+.globl poly1305_blocks
+.globl poly1305_init
+.type poly1305_init,%function
+.align 5
+poly1305_init:
+.Lpoly1305_init:
+ stmdb sp!,{r4-r11}
+
+ eor r3,r3,r3
+ cmp r1,#0
+ str r3,[r0,#0] @ zero hash value
+ str r3,[r0,#4]
+ str r3,[r0,#8]
+ str r3,[r0,#12]
+ str r3,[r0,#16]
+ str r3,[r0,#36] @ clear is_base2_26
+ add r0,r0,#20
+
+#ifdef __thumb2__
+ it eq
+#endif
+ moveq r0,#0
+ beq .Lno_key
+
+#if __ARM_MAX_ARCH__>=7
+ mov r3,#-1
+ str r3,[r0,#28] @ impossible key power value
+# ifndef __KERNEL__
+ adr r11,.Lpoly1305_init
+ ldr r12,.LOPENSSL_armcap
+# endif
+#endif
+ ldrb r4,[r1,#0]
+ mov r10,#0x0fffffff
+ ldrb r5,[r1,#1]
+ and r3,r10,#-4 @ 0x0ffffffc
+ ldrb r6,[r1,#2]
+ ldrb r7,[r1,#3]
+ orr r4,r4,r5,lsl#8
+ ldrb r5,[r1,#4]
+ orr r4,r4,r6,lsl#16
+ ldrb r6,[r1,#5]
+ orr r4,r4,r7,lsl#24
+ ldrb r7,[r1,#6]
+ and r4,r4,r10
+
+#if __ARM_MAX_ARCH__>=7 && !defined(__KERNEL__)
+# if !defined(_WIN32)
+ ldr r12,[r11,r12] @ OPENSSL_armcap_P
+# endif
+# if defined(__APPLE__) || defined(_WIN32)
+ ldr r12,[r12]
+# endif
+#endif
+ ldrb r8,[r1,#7]
+ orr r5,r5,r6,lsl#8
+ ldrb r6,[r1,#8]
+ orr r5,r5,r7,lsl#16
+ ldrb r7,[r1,#9]
+ orr r5,r5,r8,lsl#24
+ ldrb r8,[r1,#10]
+ and r5,r5,r3
+
+#if __ARM_MAX_ARCH__>=7 && !defined(__KERNEL__)
+ tst r12,#ARMV7_NEON @ check for NEON
+# ifdef __thumb2__
+ adr r9,.Lpoly1305_blocks_neon
+ adr r11,.Lpoly1305_blocks
+ it ne
+ movne r11,r9
+ adr r12,.Lpoly1305_emit
+ orr r11,r11,#1 @ thumb-ify addresses
+ orr r12,r12,#1
+# else
+ add r12,r11,#(.Lpoly1305_emit-.Lpoly1305_init)
+ ite eq
+ addeq r11,r11,#(.Lpoly1305_blocks-.Lpoly1305_init)
+ addne r11,r11,#(.Lpoly1305_blocks_neon-.Lpoly1305_init)
+# endif
+#endif
+ ldrb r9,[r1,#11]
+ orr r6,r6,r7,lsl#8
+ ldrb r7,[r1,#12]
+ orr r6,r6,r8,lsl#16
+ ldrb r8,[r1,#13]
+ orr r6,r6,r9,lsl#24
+ ldrb r9,[r1,#14]
+ and r6,r6,r3
+
+ ldrb r10,[r1,#15]
+ orr r7,r7,r8,lsl#8
+ str r4,[r0,#0]
+ orr r7,r7,r9,lsl#16
+ str r5,[r0,#4]
+ orr r7,r7,r10,lsl#24
+ str r6,[r0,#8]
+ and r7,r7,r3
+ str r7,[r0,#12]
+#if __ARM_MAX_ARCH__>=7 && !defined(__KERNEL__)
+ stmia r2,{r11,r12} @ fill functions table
+ mov r0,#1
+#else
+ mov r0,#0
+#endif
+.Lno_key:
+ ldmia sp!,{r4-r11}
+#if __ARM_ARCH__>=5
+ bx lr @ bx lr
+#else
+ tst lr,#1
+ moveq pc,lr @ be binary compatible with V4, yet
+ .word 0xe12fff1e @ interoperable with Thumb ISA:-)
+#endif
+.size poly1305_init,.-poly1305_init
+.type poly1305_blocks,%function
+.align 5
+poly1305_blocks:
+.Lpoly1305_blocks:
+ stmdb sp!,{r3-r11,lr}
+
+ ands r2,r2,#-16
+ beq .Lno_data
+
+ add r2,r2,r1 @ end pointer
+ sub sp,sp,#32
+
+#if __ARM_ARCH__<7
+ ldmia r0,{r4-r12} @ load context
+ add r0,r0,#20
+ str r2,[sp,#16] @ offload stuff
+ str r0,[sp,#12]
+#else
+ ldr lr,[r0,#36] @ is_base2_26
+ ldmia r0!,{r4-r8} @ load hash value
+ str r2,[sp,#16] @ offload stuff
+ str r0,[sp,#12]
+
+ adds r9,r4,r5,lsl#26 @ base 2^26 -> base 2^32
+ mov r10,r5,lsr#6
+ adcs r10,r10,r6,lsl#20
+ mov r11,r6,lsr#12
+ adcs r11,r11,r7,lsl#14
+ mov r12,r7,lsr#18
+ adcs r12,r12,r8,lsl#8
+ mov r2,#0
+ teq lr,#0
+ str r2,[r0,#16] @ clear is_base2_26
+ adc r2,r2,r8,lsr#24
+
+ itttt ne
+ movne r4,r9 @ choose between radixes
+ movne r5,r10
+ movne r6,r11
+ movne r7,r12
+ ldmia r0,{r9-r12} @ load key
+ it ne
+ movne r8,r2
+#endif
+
+ mov lr,r1
+ cmp r3,#0
+ str r10,[sp,#20]
+ str r11,[sp,#24]
+ str r12,[sp,#28]
+ b .Loop
+
+.align 4
+.Loop:
+#if __ARM_ARCH__<7
+ ldrb r0,[lr],#16 @ load input
+# ifdef __thumb2__
+ it hi
+# endif
+ addhi r8,r8,#1 @ 1<<128
+ ldrb r1,[lr,#-15]
+ ldrb r2,[lr,#-14]
+ ldrb r3,[lr,#-13]
+ orr r1,r0,r1,lsl#8
+ ldrb r0,[lr,#-12]
+ orr r2,r1,r2,lsl#16
+ ldrb r1,[lr,#-11]
+ orr r3,r2,r3,lsl#24
+ ldrb r2,[lr,#-10]
+ adds r4,r4,r3 @ accumulate input
+
+ ldrb r3,[lr,#-9]
+ orr r1,r0,r1,lsl#8
+ ldrb r0,[lr,#-8]
+ orr r2,r1,r2,lsl#16
+ ldrb r1,[lr,#-7]
+ orr r3,r2,r3,lsl#24
+ ldrb r2,[lr,#-6]
+ adcs r5,r5,r3
+
+ ldrb r3,[lr,#-5]
+ orr r1,r0,r1,lsl#8
+ ldrb r0,[lr,#-4]
+ orr r2,r1,r2,lsl#16
+ ldrb r1,[lr,#-3]
+ orr r3,r2,r3,lsl#24
+ ldrb r2,[lr,#-2]
+ adcs r6,r6,r3
+
+ ldrb r3,[lr,#-1]
+ orr r1,r0,r1,lsl#8
+ str lr,[sp,#8] @ offload input pointer
+ orr r2,r1,r2,lsl#16
+ add r10,r10,r10,lsr#2
+ orr r3,r2,r3,lsl#24
+#else
+ ldr r0,[lr],#16 @ load input
+ it hi
+ addhi r8,r8,#1 @ padbit
+ ldr r1,[lr,#-12]
+ ldr r2,[lr,#-8]
+ ldr r3,[lr,#-4]
+# ifdef __ARMEB__
+ rev r0,r0
+ rev r1,r1
+ rev r2,r2
+ rev r3,r3
+# endif
+ adds r4,r4,r0 @ accumulate input
+ str lr,[sp,#8] @ offload input pointer
+ adcs r5,r5,r1
+ add r10,r10,r10,lsr#2
+ adcs r6,r6,r2
+#endif
+ add r11,r11,r11,lsr#2
+ adcs r7,r7,r3
+ add r12,r12,r12,lsr#2
+
+ umull r2,r3,r5,r9
+ adc r8,r8,#0
+ umull r0,r1,r4,r9
+ umlal r2,r3,r8,r10
+ umlal r0,r1,r7,r10
+ ldr r10,[sp,#20] @ reload r10
+ umlal r2,r3,r6,r12
+ umlal r0,r1,r5,r12
+ umlal r2,r3,r7,r11
+ umlal r0,r1,r6,r11
+ umlal r2,r3,r4,r10
+ str r0,[sp,#0] @ future r4
+ mul r0,r11,r8
+ ldr r11,[sp,#24] @ reload r11
+ adds r2,r2,r1 @ d1+=d0>>32
+ eor r1,r1,r1
+ adc lr,r3,#0 @ future r6
+ str r2,[sp,#4] @ future r5
+
+ mul r2,r12,r8
+ eor r3,r3,r3
+ umlal r0,r1,r7,r12
+ ldr r12,[sp,#28] @ reload r12
+ umlal r2,r3,r7,r9
+ umlal r0,r1,r6,r9
+ umlal r2,r3,r6,r10
+ umlal r0,r1,r5,r10
+ umlal r2,r3,r5,r11
+ umlal r0,r1,r4,r11
+ umlal r2,r3,r4,r12
+ ldr r4,[sp,#0]
+ mul r8,r9,r8
+ ldr r5,[sp,#4]
+
+ adds r6,lr,r0 @ d2+=d1>>32
+ ldr lr,[sp,#8] @ reload input pointer
+ adc r1,r1,#0
+ adds r7,r2,r1 @ d3+=d2>>32
+ ldr r0,[sp,#16] @ reload end pointer
+ adc r3,r3,#0
+ add r8,r8,r3 @ h4+=d3>>32
+
+ and r1,r8,#-4
+ and r8,r8,#3
+ add r1,r1,r1,lsr#2 @ *=5
+ adds r4,r4,r1
+ adcs r5,r5,#0
+ adcs r6,r6,#0
+ adcs r7,r7,#0
+ adc r8,r8,#0
+
+ cmp r0,lr @ done yet?
+ bhi .Loop
+
+ ldr r0,[sp,#12]
+ add sp,sp,#32
+ stmdb r0,{r4-r8} @ store the result
+
+.Lno_data:
+#if __ARM_ARCH__>=5
+ ldmia sp!,{r3-r11,pc}
+#else
+ ldmia sp!,{r3-r11,lr}
+ tst lr,#1
+ moveq pc,lr @ be binary compatible with V4, yet
+ .word 0xe12fff1e @ interoperable with Thumb ISA:-)
+#endif
+.size poly1305_blocks,.-poly1305_blocks
+.type poly1305_emit,%function
+.align 5
+poly1305_emit:
+.Lpoly1305_emit:
+ stmdb sp!,{r4-r11}
+
+ ldmia r0,{r3-r7}
+
+#if __ARM_ARCH__>=7
+ ldr ip,[r0,#36] @ is_base2_26
+
+ adds r8,r3,r4,lsl#26 @ base 2^26 -> base 2^32
+ mov r9,r4,lsr#6
+ adcs r9,r9,r5,lsl#20
+ mov r10,r5,lsr#12
+ adcs r10,r10,r6,lsl#14
+ mov r11,r6,lsr#18
+ adcs r11,r11,r7,lsl#8
+ mov r0,#0
+ adc r0,r0,r7,lsr#24
+
+ tst ip,ip
+ itttt ne
+ movne r3,r8
+ movne r4,r9
+ movne r5,r10
+ movne r6,r11
+ it ne
+ movne r7,r0
+#endif
+
+ adds r8,r3,#5 @ compare to modulus
+ adcs r9,r4,#0
+ adcs r10,r5,#0
+ adcs r11,r6,#0
+ adc r0,r7,#0
+ tst r0,#4 @ did it carry/borrow?
+
+#ifdef __thumb2__
+ it ne
+#endif
+ movne r3,r8
+ ldr r8,[r2,#0]
+#ifdef __thumb2__
+ it ne
+#endif
+ movne r4,r9
+ ldr r9,[r2,#4]
+#ifdef __thumb2__
+ it ne
+#endif
+ movne r5,r10
+ ldr r10,[r2,#8]
+#ifdef __thumb2__
+ it ne
+#endif
+ movne r6,r11
+ ldr r11,[r2,#12]
+
+ adds r3,r3,r8
+ adcs r4,r4,r9
+ adcs r5,r5,r10
+ adc r6,r6,r11
+
+#if __ARM_ARCH__>=7
+# ifdef __ARMEB__
+ rev r3,r3
+ rev r4,r4
+ rev r5,r5
+ rev r6,r6
+# endif
+ str r3,[r1,#0]
+ str r4,[r1,#4]
+ str r5,[r1,#8]
+ str r6,[r1,#12]
+#else
+ strb r3,[r1,#0]
+ mov r3,r3,lsr#8
+ strb r4,[r1,#4]
+ mov r4,r4,lsr#8
+ strb r5,[r1,#8]
+ mov r5,r5,lsr#8
+ strb r6,[r1,#12]
+ mov r6,r6,lsr#8
+
+ strb r3,[r1,#1]
+ mov r3,r3,lsr#8
+ strb r4,[r1,#5]
+ mov r4,r4,lsr#8
+ strb r5,[r1,#9]
+ mov r5,r5,lsr#8
+ strb r6,[r1,#13]
+ mov r6,r6,lsr#8
+
+ strb r3,[r1,#2]
+ mov r3,r3,lsr#8
+ strb r4,[r1,#6]
+ mov r4,r4,lsr#8
+ strb r5,[r1,#10]
+ mov r5,r5,lsr#8
+ strb r6,[r1,#14]
+ mov r6,r6,lsr#8
+
+ strb r3,[r1,#3]
+ strb r4,[r1,#7]
+ strb r5,[r1,#11]
+ strb r6,[r1,#15]
+#endif
+ ldmia sp!,{r4-r11}
+#if __ARM_ARCH__>=5
+ bx lr @ bx lr
+#else
+ tst lr,#1
+ moveq pc,lr @ be binary compatible with V4, yet
+ .word 0xe12fff1e @ interoperable with Thumb ISA:-)
+#endif
+.size poly1305_emit,.-poly1305_emit
+#if __ARM_MAX_ARCH__>=7
+.fpu neon
+
+.type poly1305_init_neon,%function
+.align 5
+poly1305_init_neon:
+.Lpoly1305_init_neon:
+ ldr r3,[r0,#48] @ first table element
+ cmp r3,#-1 @ is value impossible?
+ bne .Lno_init_neon
+
+ ldr r4,[r0,#20] @ load key base 2^32
+ ldr r5,[r0,#24]
+ ldr r6,[r0,#28]
+ ldr r7,[r0,#32]
+
+ and r2,r4,#0x03ffffff @ base 2^32 -> base 2^26
+ mov r3,r4,lsr#26
+ mov r4,r5,lsr#20
+ orr r3,r3,r5,lsl#6
+ mov r5,r6,lsr#14
+ orr r4,r4,r6,lsl#12
+ mov r6,r7,lsr#8
+ orr r5,r5,r7,lsl#18
+ and r3,r3,#0x03ffffff
+ and r4,r4,#0x03ffffff
+ and r5,r5,#0x03ffffff
+
+ vdup.32 d0,r2 @ r^1 in both lanes
+ add r2,r3,r3,lsl#2 @ *5
+ vdup.32 d1,r3
+ add r3,r4,r4,lsl#2
+ vdup.32 d2,r2
+ vdup.32 d3,r4
+ add r4,r5,r5,lsl#2
+ vdup.32 d4,r3
+ vdup.32 d5,r5
+ add r5,r6,r6,lsl#2
+ vdup.32 d6,r4
+ vdup.32 d7,r6
+ vdup.32 d8,r5
+
+ mov r5,#2 @ counter
+
+.Lsquare_neon:
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ @ d0 = h0*r0 + h4*5*r1 + h3*5*r2 + h2*5*r3 + h1*5*r4
+ @ d1 = h1*r0 + h0*r1 + h4*5*r2 + h3*5*r3 + h2*5*r4
+ @ d2 = h2*r0 + h1*r1 + h0*r2 + h4*5*r3 + h3*5*r4
+ @ d3 = h3*r0 + h2*r1 + h1*r2 + h0*r3 + h4*5*r4
+ @ d4 = h4*r0 + h3*r1 + h2*r2 + h1*r3 + h0*r4
+
+ vmull.u32 q5,d0,d0[1]
+ vmull.u32 q6,d1,d0[1]
+ vmull.u32 q7,d3,d0[1]
+ vmull.u32 q8,d5,d0[1]
+ vmull.u32 q9,d7,d0[1]
+
+ vmlal.u32 q5,d7,d2[1]
+ vmlal.u32 q6,d0,d1[1]
+ vmlal.u32 q7,d1,d1[1]
+ vmlal.u32 q8,d3,d1[1]
+ vmlal.u32 q9,d5,d1[1]
+
+ vmlal.u32 q5,d5,d4[1]
+ vmlal.u32 q6,d7,d4[1]
+ vmlal.u32 q8,d1,d3[1]
+ vmlal.u32 q7,d0,d3[1]
+ vmlal.u32 q9,d3,d3[1]
+
+ vmlal.u32 q5,d3,d6[1]
+ vmlal.u32 q8,d0,d5[1]
+ vmlal.u32 q6,d5,d6[1]
+ vmlal.u32 q7,d7,d6[1]
+ vmlal.u32 q9,d1,d5[1]
+
+ vmlal.u32 q8,d7,d8[1]
+ vmlal.u32 q5,d1,d8[1]
+ vmlal.u32 q6,d3,d8[1]
+ vmlal.u32 q7,d5,d8[1]
+ vmlal.u32 q9,d0,d7[1]
+
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ @ lazy reduction as discussed in "NEON crypto" by D.J. Bernstein
+ @ and P. Schwabe
+ @
+ @ H0>>+H1>>+H2>>+H3>>+H4
+ @ H3>>+H4>>*5+H0>>+H1
+ @
+ @ Trivia.
+ @
+ @ Result of multiplication of n-bit number by m-bit number is
+ @ n+m bits wide. However! Even though 2^n is a n+1-bit number,
+ @ m-bit number multiplied by 2^n is still n+m bits wide.
+ @
+ @ Sum of two n-bit numbers is n+1 bits wide, sum of three - n+2,
+ @ and so is sum of four. Sum of 2^m n-m-bit numbers and n-bit
+ @ one is n+1 bits wide.
+ @
+ @ >>+ denotes Hnext += Hn>>26, Hn &= 0x3ffffff. This means that
+ @ H0, H2, H3 are guaranteed to be 26 bits wide, while H1 and H4
+ @ can be 27. However! In cases when their width exceeds 26 bits
+ @ they are limited by 2^26+2^6. This in turn means that *sum*
+ @ of the products with these values can still be viewed as sum
+ @ of 52-bit numbers as long as the amount of addends is not a
+ @ power of 2. For example,
+ @
+ @ H4 = H4*R0 + H3*R1 + H2*R2 + H1*R3 + H0 * R4,
+ @
+ @ which can't be larger than 5 * (2^26 + 2^6) * (2^26 + 2^6), or
+ @ 5 * (2^52 + 2*2^32 + 2^12), which in turn is smaller than
+ @ 8 * (2^52) or 2^55. However, the value is then multiplied by
+ @ by 5, so we should be looking at 5 * 5 * (2^52 + 2^33 + 2^12),
+ @ which is less than 32 * (2^52) or 2^57. And when processing
+ @ data we are looking at triple as many addends...
+ @
+ @ In key setup procedure pre-reduced H0 is limited by 5*4+1 and
+ @ 5*H4 - by 5*5 52-bit addends, or 57 bits. But when hashing the
+ @ input H0 is limited by (5*4+1)*3 addends, or 58 bits, while
+ @ 5*H4 by 5*5*3, or 59[!] bits. How is this relevant? vmlal.u32
+ @ instruction accepts 2x32-bit input and writes 2x64-bit result.
+ @ This means that result of reduction have to be compressed upon
+ @ loop wrap-around. This can be done in the process of reduction
+ @ to minimize amount of instructions [as well as amount of
+ @ 128-bit instructions, which benefits low-end processors], but
+ @ one has to watch for H2 (which is narrower than H0) and 5*H4
+ @ not being wider than 58 bits, so that result of right shift
+ @ by 26 bits fits in 32 bits. This is also useful on x86,
+ @ because it allows to use paddd in place for paddq, which
+ @ benefits Atom, where paddq is ridiculously slow.
+
+ vshr.u64 q15,q8,#26
+ vmovn.i64 d16,q8
+ vshr.u64 q4,q5,#26
+ vmovn.i64 d10,q5
+ vadd.i64 q9,q9,q15 @ h3 -> h4
+ vbic.i32 d16,#0xfc000000 @ &=0x03ffffff
+ vadd.i64 q6,q6,q4 @ h0 -> h1
+ vbic.i32 d10,#0xfc000000
+
+ vshrn.u64 d30,q9,#26
+ vmovn.i64 d18,q9
+ vshr.u64 q4,q6,#26
+ vmovn.i64 d12,q6
+ vadd.i64 q7,q7,q4 @ h1 -> h2
+ vbic.i32 d18,#0xfc000000
+ vbic.i32 d12,#0xfc000000
+
+ vadd.i32 d10,d10,d30
+ vshl.u32 d30,d30,#2
+ vshrn.u64 d8,q7,#26
+ vmovn.i64 d14,q7
+ vadd.i32 d10,d10,d30 @ h4 -> h0
+ vadd.i32 d16,d16,d8 @ h2 -> h3
+ vbic.i32 d14,#0xfc000000
+
+ vshr.u32 d30,d10,#26
+ vbic.i32 d10,#0xfc000000
+ vshr.u32 d8,d16,#26
+ vbic.i32 d16,#0xfc000000
+ vadd.i32 d12,d12,d30 @ h0 -> h1
+ vadd.i32 d18,d18,d8 @ h3 -> h4
+
+ subs r5,r5,#1
+ beq .Lsquare_break_neon
+
+ add r6,r0,#(48+0*9*4)
+ add r7,r0,#(48+1*9*4)
+
+ vtrn.32 d0,d10 @ r^2:r^1
+ vtrn.32 d3,d14
+ vtrn.32 d5,d16
+ vtrn.32 d1,d12
+ vtrn.32 d7,d18
+
+ vshl.u32 d4,d3,#2 @ *5
+ vshl.u32 d6,d5,#2
+ vshl.u32 d2,d1,#2
+ vshl.u32 d8,d7,#2
+ vadd.i32 d4,d4,d3
+ vadd.i32 d2,d2,d1
+ vadd.i32 d6,d6,d5
+ vadd.i32 d8,d8,d7
+
+ vst4.32 {d0[0],d1[0],d2[0],d3[0]},[r6]!
+ vst4.32 {d0[1],d1[1],d2[1],d3[1]},[r7]!
+ vst4.32 {d4[0],d5[0],d6[0],d7[0]},[r6]!
+ vst4.32 {d4[1],d5[1],d6[1],d7[1]},[r7]!
+ vst1.32 {d8[0]},[r6,:32]
+ vst1.32 {d8[1]},[r7,:32]
+
+ b .Lsquare_neon
+
+.align 4
+.Lsquare_break_neon:
+ add r6,r0,#(48+2*4*9)
+ add r7,r0,#(48+3*4*9)
+
+ vmov d0,d10 @ r^4:r^3
+ vshl.u32 d2,d12,#2 @ *5
+ vmov d1,d12
+ vshl.u32 d4,d14,#2
+ vmov d3,d14
+ vshl.u32 d6,d16,#2
+ vmov d5,d16
+ vshl.u32 d8,d18,#2
+ vmov d7,d18
+ vadd.i32 d2,d2,d12
+ vadd.i32 d4,d4,d14
+ vadd.i32 d6,d6,d16
+ vadd.i32 d8,d8,d18
+
+ vst4.32 {d0[0],d1[0],d2[0],d3[0]},[r6]!
+ vst4.32 {d0[1],d1[1],d2[1],d3[1]},[r7]!
+ vst4.32 {d4[0],d5[0],d6[0],d7[0]},[r6]!
+ vst4.32 {d4[1],d5[1],d6[1],d7[1]},[r7]!
+ vst1.32 {d8[0]},[r6]
+ vst1.32 {d8[1]},[r7]
+
+.Lno_init_neon:
+ bx lr @ bx lr
+.size poly1305_init_neon,.-poly1305_init_neon
+
+.type poly1305_blocks_neon,%function
+.align 5
+poly1305_blocks_neon:
+.Lpoly1305_blocks_neon:
+ ldr ip,[r0,#36] @ is_base2_26
+
+ cmp r2,#64
+ blo .Lpoly1305_blocks
+
+ stmdb sp!,{r4-r7}
+ vstmdb sp!,{d8-d15} @ ABI specification says so
+
+ tst ip,ip @ is_base2_26?
+ bne .Lbase2_26_neon
+
+ stmdb sp!,{r1-r3,lr}
+ bl .Lpoly1305_init_neon
+
+ ldr r4,[r0,#0] @ load hash value base 2^32
+ ldr r5,[r0,#4]
+ ldr r6,[r0,#8]
+ ldr r7,[r0,#12]
+ ldr ip,[r0,#16]
+
+ and r2,r4,#0x03ffffff @ base 2^32 -> base 2^26
+ mov r3,r4,lsr#26
+ veor d10,d10,d10
+ mov r4,r5,lsr#20
+ orr r3,r3,r5,lsl#6
+ veor d12,d12,d12
+ mov r5,r6,lsr#14
+ orr r4,r4,r6,lsl#12
+ veor d14,d14,d14
+ mov r6,r7,lsr#8
+ orr r5,r5,r7,lsl#18
+ veor d16,d16,d16
+ and r3,r3,#0x03ffffff
+ orr r6,r6,ip,lsl#24
+ veor d18,d18,d18
+ and r4,r4,#0x03ffffff
+ mov r1,#1
+ and r5,r5,#0x03ffffff
+ str r1,[r0,#36] @ set is_base2_26
+
+ vmov.32 d10[0],r2
+ vmov.32 d12[0],r3
+ vmov.32 d14[0],r4
+ vmov.32 d16[0],r5
+ vmov.32 d18[0],r6
+ adr r5,.Lzeros
+
+ ldmia sp!,{r1-r3,lr}
+ b .Lhash_loaded
+
+.align 4
+.Lbase2_26_neon:
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ @ load hash value
+
+ veor d10,d10,d10
+ veor d12,d12,d12
+ veor d14,d14,d14
+ veor d16,d16,d16
+ veor d18,d18,d18
+ vld4.32 {d10[0],d12[0],d14[0],d16[0]},[r0]!
+ adr r5,.Lzeros
+ vld1.32 {d18[0]},[r0]
+ sub r0,r0,#16 @ rewind
+
+.Lhash_loaded:
+ add r4,r1,#32
+ mov r3,r3,lsl#24
+ tst r2,#31
+ beq .Leven
+
+ vld4.32 {d20[0],d22[0],d24[0],d26[0]},[r1]!
+ vmov.32 d28[0],r3
+ sub r2,r2,#16
+ add r4,r1,#32
+
+# ifdef __ARMEB__
+ vrev32.8 q10,q10
+ vrev32.8 q13,q13
+ vrev32.8 q11,q11
+ vrev32.8 q12,q12
+# endif
+ vsri.u32 d28,d26,#8 @ base 2^32 -> base 2^26
+ vshl.u32 d26,d26,#18
+
+ vsri.u32 d26,d24,#14
+ vshl.u32 d24,d24,#12
+ vadd.i32 d29,d28,d18 @ add hash value and move to #hi
+
+ vbic.i32 d26,#0xfc000000
+ vsri.u32 d24,d22,#20
+ vshl.u32 d22,d22,#6
+
+ vbic.i32 d24,#0xfc000000
+ vsri.u32 d22,d20,#26
+ vadd.i32 d27,d26,d16
+
+ vbic.i32 d20,#0xfc000000
+ vbic.i32 d22,#0xfc000000
+ vadd.i32 d25,d24,d14
+
+ vadd.i32 d21,d20,d10
+ vadd.i32 d23,d22,d12
+
+ mov r7,r5
+ add r6,r0,#48
+
+ cmp r2,r2
+ b .Long_tail
+
+.align 4
+.Leven:
+ subs r2,r2,#64
+ it lo
+ movlo r4,r5
+
+ vmov.i32 q14,#1<<24 @ padbit, yes, always
+ vld4.32 {d20,d22,d24,d26},[r1] @ inp[0:1]
+ add r1,r1,#64
+ vld4.32 {d21,d23,d25,d27},[r4] @ inp[2:3] (or 0)
+ add r4,r4,#64
+ itt hi
+ addhi r7,r0,#(48+1*9*4)
+ addhi r6,r0,#(48+3*9*4)
+
+# ifdef __ARMEB__
+ vrev32.8 q10,q10
+ vrev32.8 q13,q13
+ vrev32.8 q11,q11
+ vrev32.8 q12,q12
+# endif
+ vsri.u32 q14,q13,#8 @ base 2^32 -> base 2^26
+ vshl.u32 q13,q13,#18
+
+ vsri.u32 q13,q12,#14
+ vshl.u32 q12,q12,#12
+
+ vbic.i32 q13,#0xfc000000
+ vsri.u32 q12,q11,#20
+ vshl.u32 q11,q11,#6
+
+ vbic.i32 q12,#0xfc000000
+ vsri.u32 q11,q10,#26
+
+ vbic.i32 q10,#0xfc000000
+ vbic.i32 q11,#0xfc000000
+
+ bls .Lskip_loop
+
+ vld4.32 {d0[1],d1[1],d2[1],d3[1]},[r7]! @ load r^2
+ vld4.32 {d0[0],d1[0],d2[0],d3[0]},[r6]! @ load r^4
+ vld4.32 {d4[1],d5[1],d6[1],d7[1]},[r7]!
+ vld4.32 {d4[0],d5[0],d6[0],d7[0]},[r6]!
+ b .Loop_neon
+
+.align 5
+.Loop_neon:
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ @ ((inp[0]*r^4+inp[2]*r^2+inp[4])*r^4+inp[6]*r^2
+ @ ((inp[1]*r^4+inp[3]*r^2+inp[5])*r^3+inp[7]*r
+ @ ___________________/
+ @ ((inp[0]*r^4+inp[2]*r^2+inp[4])*r^4+inp[6]*r^2+inp[8])*r^2
+ @ ((inp[1]*r^4+inp[3]*r^2+inp[5])*r^4+inp[7]*r^2+inp[9])*r
+ @ ___________________/ ____________________/
+ @
+ @ Note that we start with inp[2:3]*r^2. This is because it
+ @ doesn't depend on reduction in previous iteration.
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ @ d4 = h4*r0 + h3*r1 + h2*r2 + h1*r3 + h0*r4
+ @ d3 = h3*r0 + h2*r1 + h1*r2 + h0*r3 + h4*5*r4
+ @ d2 = h2*r0 + h1*r1 + h0*r2 + h4*5*r3 + h3*5*r4
+ @ d1 = h1*r0 + h0*r1 + h4*5*r2 + h3*5*r3 + h2*5*r4
+ @ d0 = h0*r0 + h4*5*r1 + h3*5*r2 + h2*5*r3 + h1*5*r4
+
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ @ inp[2:3]*r^2
+
+ vadd.i32 d24,d24,d14 @ accumulate inp[0:1]
+ vmull.u32 q7,d25,d0[1]
+ vadd.i32 d20,d20,d10
+ vmull.u32 q5,d21,d0[1]
+ vadd.i32 d26,d26,d16
+ vmull.u32 q8,d27,d0[1]
+ vmlal.u32 q7,d23,d1[1]
+ vadd.i32 d22,d22,d12
+ vmull.u32 q6,d23,d0[1]
+
+ vadd.i32 d28,d28,d18
+ vmull.u32 q9,d29,d0[1]
+ subs r2,r2,#64
+ vmlal.u32 q5,d29,d2[1]
+ it lo
+ movlo r4,r5
+ vmlal.u32 q8,d25,d1[1]
+ vld1.32 d8[1],[r7,:32]
+ vmlal.u32 q6,d21,d1[1]
+ vmlal.u32 q9,d27,d1[1]
+
+ vmlal.u32 q5,d27,d4[1]
+ vmlal.u32 q8,d23,d3[1]
+ vmlal.u32 q9,d25,d3[1]
+ vmlal.u32 q6,d29,d4[1]
+ vmlal.u32 q7,d21,d3[1]
+
+ vmlal.u32 q8,d21,d5[1]
+ vmlal.u32 q5,d25,d6[1]
+ vmlal.u32 q9,d23,d5[1]
+ vmlal.u32 q6,d27,d6[1]
+ vmlal.u32 q7,d29,d6[1]
+
+ vmlal.u32 q8,d29,d8[1]
+ vmlal.u32 q5,d23,d8[1]
+ vmlal.u32 q9,d21,d7[1]
+ vmlal.u32 q6,d25,d8[1]
+ vmlal.u32 q7,d27,d8[1]
+
+ vld4.32 {d21,d23,d25,d27},[r4] @ inp[2:3] (or 0)
+ add r4,r4,#64
+
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ @ (hash+inp[0:1])*r^4 and accumulate
+
+ vmlal.u32 q8,d26,d0[0]
+ vmlal.u32 q5,d20,d0[0]
+ vmlal.u32 q9,d28,d0[0]
+ vmlal.u32 q6,d22,d0[0]
+ vmlal.u32 q7,d24,d0[0]
+ vld1.32 d8[0],[r6,:32]
+
+ vmlal.u32 q8,d24,d1[0]
+ vmlal.u32 q5,d28,d2[0]
+ vmlal.u32 q9,d26,d1[0]
+ vmlal.u32 q6,d20,d1[0]
+ vmlal.u32 q7,d22,d1[0]
+
+ vmlal.u32 q8,d22,d3[0]
+ vmlal.u32 q5,d26,d4[0]
+ vmlal.u32 q9,d24,d3[0]
+ vmlal.u32 q6,d28,d4[0]
+ vmlal.u32 q7,d20,d3[0]
+
+ vmlal.u32 q8,d20,d5[0]
+ vmlal.u32 q5,d24,d6[0]
+ vmlal.u32 q9,d22,d5[0]
+ vmlal.u32 q6,d26,d6[0]
+ vmlal.u32 q8,d28,d8[0]
+
+ vmlal.u32 q7,d28,d6[0]
+ vmlal.u32 q5,d22,d8[0]
+ vmlal.u32 q9,d20,d7[0]
+ vmov.i32 q14,#1<<24 @ padbit, yes, always
+ vmlal.u32 q6,d24,d8[0]
+ vmlal.u32 q7,d26,d8[0]
+
+ vld4.32 {d20,d22,d24,d26},[r1] @ inp[0:1]
+ add r1,r1,#64
+# ifdef __ARMEB__
+ vrev32.8 q10,q10
+ vrev32.8 q11,q11
+ vrev32.8 q12,q12
+ vrev32.8 q13,q13
+# endif
+
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ @ lazy reduction interleaved with base 2^32 -> base 2^26 of
+ @ inp[0:3] previously loaded to q10-q13 and smashed to q10-q14.
+
+ vshr.u64 q15,q8,#26
+ vmovn.i64 d16,q8
+ vshr.u64 q4,q5,#26
+ vmovn.i64 d10,q5
+ vadd.i64 q9,q9,q15 @ h3 -> h4
+ vbic.i32 d16,#0xfc000000
+ vsri.u32 q14,q13,#8 @ base 2^32 -> base 2^26
+ vadd.i64 q6,q6,q4 @ h0 -> h1
+ vshl.u32 q13,q13,#18
+ vbic.i32 d10,#0xfc000000
+
+ vshrn.u64 d30,q9,#26
+ vmovn.i64 d18,q9
+ vshr.u64 q4,q6,#26
+ vmovn.i64 d12,q6
+ vadd.i64 q7,q7,q4 @ h1 -> h2
+ vsri.u32 q13,q12,#14
+ vbic.i32 d18,#0xfc000000
+ vshl.u32 q12,q12,#12
+ vbic.i32 d12,#0xfc000000
+
+ vadd.i32 d10,d10,d30
+ vshl.u32 d30,d30,#2
+ vbic.i32 q13,#0xfc000000
+ vshrn.u64 d8,q7,#26
+ vmovn.i64 d14,q7
+ vaddl.u32 q5,d10,d30 @ h4 -> h0 [widen for a sec]
+ vsri.u32 q12,q11,#20
+ vadd.i32 d16,d16,d8 @ h2 -> h3
+ vshl.u32 q11,q11,#6
+ vbic.i32 d14,#0xfc000000
+ vbic.i32 q12,#0xfc000000
+
+ vshrn.u64 d30,q5,#26 @ re-narrow
+ vmovn.i64 d10,q5
+ vsri.u32 q11,q10,#26
+ vbic.i32 q10,#0xfc000000
+ vshr.u32 d8,d16,#26
+ vbic.i32 d16,#0xfc000000
+ vbic.i32 d10,#0xfc000000
+ vadd.i32 d12,d12,d30 @ h0 -> h1
+ vadd.i32 d18,d18,d8 @ h3 -> h4
+ vbic.i32 q11,#0xfc000000
+
+ bhi .Loop_neon
+
+.Lskip_loop:
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ @ multiply (inp[0:1]+hash) or inp[2:3] by r^2:r^1
+
+ add r7,r0,#(48+0*9*4)
+ add r6,r0,#(48+1*9*4)
+ adds r2,r2,#32
+ it ne
+ movne r2,#0
+ bne .Long_tail
+
+ vadd.i32 d25,d24,d14 @ add hash value and move to #hi
+ vadd.i32 d21,d20,d10
+ vadd.i32 d27,d26,d16
+ vadd.i32 d23,d22,d12
+ vadd.i32 d29,d28,d18
+
+.Long_tail:
+ vld4.32 {d0[1],d1[1],d2[1],d3[1]},[r7]! @ load r^1
+ vld4.32 {d0[0],d1[0],d2[0],d3[0]},[r6]! @ load r^2
+
+ vadd.i32 d24,d24,d14 @ can be redundant
+ vmull.u32 q7,d25,d0
+ vadd.i32 d20,d20,d10
+ vmull.u32 q5,d21,d0
+ vadd.i32 d26,d26,d16
+ vmull.u32 q8,d27,d0
+ vadd.i32 d22,d22,d12
+ vmull.u32 q6,d23,d0
+ vadd.i32 d28,d28,d18
+ vmull.u32 q9,d29,d0
+
+ vmlal.u32 q5,d29,d2
+ vld4.32 {d4[1],d5[1],d6[1],d7[1]},[r7]!
+ vmlal.u32 q8,d25,d1
+ vld4.32 {d4[0],d5[0],d6[0],d7[0]},[r6]!
+ vmlal.u32 q6,d21,d1
+ vmlal.u32 q9,d27,d1
+ vmlal.u32 q7,d23,d1
+
+ vmlal.u32 q8,d23,d3
+ vld1.32 d8[1],[r7,:32]
+ vmlal.u32 q5,d27,d4
+ vld1.32 d8[0],[r6,:32]
+ vmlal.u32 q9,d25,d3
+ vmlal.u32 q6,d29,d4
+ vmlal.u32 q7,d21,d3
+
+ vmlal.u32 q8,d21,d5
+ it ne
+ addne r7,r0,#(48+2*9*4)
+ vmlal.u32 q5,d25,d6
+ it ne
+ addne r6,r0,#(48+3*9*4)
+ vmlal.u32 q9,d23,d5
+ vmlal.u32 q6,d27,d6
+ vmlal.u32 q7,d29,d6
+
+ vmlal.u32 q8,d29,d8
+ vorn q0,q0,q0 @ all-ones, can be redundant
+ vmlal.u32 q5,d23,d8
+ vshr.u64 q0,q0,#38
+ vmlal.u32 q9,d21,d7
+ vmlal.u32 q6,d25,d8
+ vmlal.u32 q7,d27,d8
+
+ beq .Lshort_tail
+
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ @ (hash+inp[0:1])*r^4:r^3 and accumulate
+
+ vld4.32 {d0[1],d1[1],d2[1],d3[1]},[r7]! @ load r^3
+ vld4.32 {d0[0],d1[0],d2[0],d3[0]},[r6]! @ load r^4
+
+ vmlal.u32 q7,d24,d0
+ vmlal.u32 q5,d20,d0
+ vmlal.u32 q8,d26,d0
+ vmlal.u32 q6,d22,d0
+ vmlal.u32 q9,d28,d0
+
+ vmlal.u32 q5,d28,d2
+ vld4.32 {d4[1],d5[1],d6[1],d7[1]},[r7]!
+ vmlal.u32 q8,d24,d1
+ vld4.32 {d4[0],d5[0],d6[0],d7[0]},[r6]!
+ vmlal.u32 q6,d20,d1
+ vmlal.u32 q9,d26,d1
+ vmlal.u32 q7,d22,d1
+
+ vmlal.u32 q8,d22,d3
+ vld1.32 d8[1],[r7,:32]
+ vmlal.u32 q5,d26,d4
+ vld1.32 d8[0],[r6,:32]
+ vmlal.u32 q9,d24,d3
+ vmlal.u32 q6,d28,d4
+ vmlal.u32 q7,d20,d3
+
+ vmlal.u32 q8,d20,d5
+ vmlal.u32 q5,d24,d6
+ vmlal.u32 q9,d22,d5
+ vmlal.u32 q6,d26,d6
+ vmlal.u32 q7,d28,d6
+
+ vmlal.u32 q8,d28,d8
+ vorn q0,q0,q0 @ all-ones
+ vmlal.u32 q5,d22,d8
+ vshr.u64 q0,q0,#38
+ vmlal.u32 q9,d20,d7
+ vmlal.u32 q6,d24,d8
+ vmlal.u32 q7,d26,d8
+
+.Lshort_tail:
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ @ horizontal addition
+
+ vadd.i64 d16,d16,d17
+ vadd.i64 d10,d10,d11
+ vadd.i64 d18,d18,d19
+ vadd.i64 d12,d12,d13
+ vadd.i64 d14,d14,d15
+
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ @ lazy reduction, but without narrowing
+
+ vshr.u64 q15,q8,#26
+ vand.i64 q8,q8,q0
+ vshr.u64 q4,q5,#26
+ vand.i64 q5,q5,q0
+ vadd.i64 q9,q9,q15 @ h3 -> h4
+ vadd.i64 q6,q6,q4 @ h0 -> h1
+
+ vshr.u64 q15,q9,#26
+ vand.i64 q9,q9,q0
+ vshr.u64 q4,q6,#26
+ vand.i64 q6,q6,q0
+ vadd.i64 q7,q7,q4 @ h1 -> h2
+
+ vadd.i64 q5,q5,q15
+ vshl.u64 q15,q15,#2
+ vshr.u64 q4,q7,#26
+ vand.i64 q7,q7,q0
+ vadd.i64 q5,q5,q15 @ h4 -> h0
+ vadd.i64 q8,q8,q4 @ h2 -> h3
+
+ vshr.u64 q15,q5,#26
+ vand.i64 q5,q5,q0
+ vshr.u64 q4,q8,#26
+ vand.i64 q8,q8,q0
+ vadd.i64 q6,q6,q15 @ h0 -> h1
+ vadd.i64 q9,q9,q4 @ h3 -> h4
+
+ cmp r2,#0
+ bne .Leven
+
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ @ store hash value
+
+ vst4.32 {d10[0],d12[0],d14[0],d16[0]},[r0]!
+ vst1.32 {d18[0]},[r0]
+
+ vldmia sp!,{d8-d15} @ epilogue
+ ldmia sp!,{r4-r7}
+ bx lr @ bx lr
+.size poly1305_blocks_neon,.-poly1305_blocks_neon
+
+.align 5
+.Lzeros:
+.long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
+#ifndef __KERNEL__
+.LOPENSSL_armcap:
+# ifdef _WIN32
+.word OPENSSL_armcap_P
+# else
+.word OPENSSL_armcap_P-.Lpoly1305_init
+# endif
+.comm OPENSSL_armcap_P,4,4
+.hidden OPENSSL_armcap_P
+#endif
+#endif
+.asciz "Poly1305 for ARMv4/NEON, CRYPTOGAMS by @dot-asm"
+.align 2
diff --git a/arch/arm/crypto/poly1305-glue.c b/arch/arm/crypto/poly1305-glue.c
new file mode 100644
index 0000000..066e6a8
--- /dev/null
+++ b/arch/arm/crypto/poly1305-glue.c
@@ -0,0 +1,272 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * OpenSSL/Cryptogams accelerated Poly1305 transform for ARM
+ *
+ * Copyright (C) 2019 Linaro Ltd. <ard.biesheuvel@linaro.org>
+ */
+
+#include <asm/hwcap.h>
+#include <asm/neon.h>
+#include <asm/simd.h>
+#include <asm/unaligned.h>
+#include <crypto/algapi.h>
+#include <crypto/internal/hash.h>
+#include <crypto/internal/poly1305.h>
+#include <linux/cpufeature.h>
+#include <linux/crypto.h>
+#include <linux/jump_label.h>
+#include <linux/module.h>
+
+void poly1305_init_arm(void *state, const u8 *key);
+void poly1305_blocks_arm(void *state, const u8 *src, u32 len, u32 hibit);
+void poly1305_blocks_neon(void *state, const u8 *src, u32 len, u32 hibit);
+void poly1305_emit_arm(void *state, u8 *digest, const u32 *nonce);
+
+void __weak poly1305_blocks_neon(void *state, const u8 *src, u32 len, u32 hibit)
+{
+}
+
+static __ro_after_init DEFINE_STATIC_KEY_FALSE(have_neon);
+
+void poly1305_init_arch(struct poly1305_desc_ctx *dctx, const u8 *key)
+{
+ poly1305_init_arm(&dctx->h, key);
+ dctx->s[0] = get_unaligned_le32(key + 16);
+ dctx->s[1] = get_unaligned_le32(key + 20);
+ dctx->s[2] = get_unaligned_le32(key + 24);
+ dctx->s[3] = get_unaligned_le32(key + 28);
+ dctx->buflen = 0;
+}
+EXPORT_SYMBOL(poly1305_init_arch);
+
+static int arm_poly1305_init(struct shash_desc *desc)
+{
+ struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
+
+ dctx->buflen = 0;
+ dctx->rset = 0;
+ dctx->sset = false;
+
+ return 0;
+}
+
+static void arm_poly1305_blocks(struct poly1305_desc_ctx *dctx, const u8 *src,
+ u32 len, u32 hibit, bool do_neon)
+{
+ if (unlikely(!dctx->sset)) {
+ if (!dctx->rset) {
+ poly1305_init_arm(&dctx->h, src);
+ src += POLY1305_BLOCK_SIZE;
+ len -= POLY1305_BLOCK_SIZE;
+ dctx->rset = 1;
+ }
+ if (len >= POLY1305_BLOCK_SIZE) {
+ dctx->s[0] = get_unaligned_le32(src + 0);
+ dctx->s[1] = get_unaligned_le32(src + 4);
+ dctx->s[2] = get_unaligned_le32(src + 8);
+ dctx->s[3] = get_unaligned_le32(src + 12);
+ src += POLY1305_BLOCK_SIZE;
+ len -= POLY1305_BLOCK_SIZE;
+ dctx->sset = true;
+ }
+ if (len < POLY1305_BLOCK_SIZE)
+ return;
+ }
+
+ len &= ~(POLY1305_BLOCK_SIZE - 1);
+
+ if (static_branch_likely(&have_neon) && likely(do_neon))
+ poly1305_blocks_neon(&dctx->h, src, len, hibit);
+ else
+ poly1305_blocks_arm(&dctx->h, src, len, hibit);
+}
+
+static void arm_poly1305_do_update(struct poly1305_desc_ctx *dctx,
+ const u8 *src, u32 len, bool do_neon)
+{
+ if (unlikely(dctx->buflen)) {
+ u32 bytes = min(len, POLY1305_BLOCK_SIZE - dctx->buflen);
+
+ memcpy(dctx->buf + dctx->buflen, src, bytes);
+ src += bytes;
+ len -= bytes;
+ dctx->buflen += bytes;
+
+ if (dctx->buflen == POLY1305_BLOCK_SIZE) {
+ arm_poly1305_blocks(dctx, dctx->buf,
+ POLY1305_BLOCK_SIZE, 1, false);
+ dctx->buflen = 0;
+ }
+ }
+
+ if (likely(len >= POLY1305_BLOCK_SIZE)) {
+ arm_poly1305_blocks(dctx, src, len, 1, do_neon);
+ src += round_down(len, POLY1305_BLOCK_SIZE);
+ len %= POLY1305_BLOCK_SIZE;
+ }
+
+ if (unlikely(len)) {
+ dctx->buflen = len;
+ memcpy(dctx->buf, src, len);
+ }
+}
+
+static int arm_poly1305_update(struct shash_desc *desc,
+ const u8 *src, unsigned int srclen)
+{
+ struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
+
+ arm_poly1305_do_update(dctx, src, srclen, false);
+ return 0;
+}
+
+static int __maybe_unused arm_poly1305_update_neon(struct shash_desc *desc,
+ const u8 *src,
+ unsigned int srclen)
+{
+ struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
+ bool do_neon = may_use_simd() && srclen > 128;
+
+ if (static_branch_likely(&have_neon) && do_neon)
+ kernel_neon_begin();
+ arm_poly1305_do_update(dctx, src, srclen, do_neon);
+ if (static_branch_likely(&have_neon) && do_neon)
+ kernel_neon_end();
+ return 0;
+}
+
+void poly1305_update_arch(struct poly1305_desc_ctx *dctx, const u8 *src,
+ unsigned int nbytes)
+{
+ bool do_neon = IS_ENABLED(CONFIG_KERNEL_MODE_NEON) &&
+ may_use_simd();
+
+ if (unlikely(dctx->buflen)) {
+ u32 bytes = min(nbytes, POLY1305_BLOCK_SIZE - dctx->buflen);
+
+ memcpy(dctx->buf + dctx->buflen, src, bytes);
+ src += bytes;
+ nbytes -= bytes;
+ dctx->buflen += bytes;
+
+ if (dctx->buflen == POLY1305_BLOCK_SIZE) {
+ poly1305_blocks_arm(&dctx->h, dctx->buf,
+ POLY1305_BLOCK_SIZE, 1);
+ dctx->buflen = 0;
+ }
+ }
+
+ if (likely(nbytes >= POLY1305_BLOCK_SIZE)) {
+ unsigned int len = round_down(nbytes, POLY1305_BLOCK_SIZE);
+
+ if (static_branch_likely(&have_neon) && do_neon) {
+ do {
+ unsigned int todo = min_t(unsigned int, len, SZ_4K);
+
+ kernel_neon_begin();
+ poly1305_blocks_neon(&dctx->h, src, todo, 1);
+ kernel_neon_end();
+
+ len -= todo;
+ src += todo;
+ } while (len);
+ } else {
+ poly1305_blocks_arm(&dctx->h, src, len, 1);
+ src += len;
+ }
+ nbytes %= POLY1305_BLOCK_SIZE;
+ }
+
+ if (unlikely(nbytes)) {
+ dctx->buflen = nbytes;
+ memcpy(dctx->buf, src, nbytes);
+ }
+}
+EXPORT_SYMBOL(poly1305_update_arch);
+
+void poly1305_final_arch(struct poly1305_desc_ctx *dctx, u8 *dst)
+{
+ if (unlikely(dctx->buflen)) {
+ dctx->buf[dctx->buflen++] = 1;
+ memset(dctx->buf + dctx->buflen, 0,
+ POLY1305_BLOCK_SIZE - dctx->buflen);
+ poly1305_blocks_arm(&dctx->h, dctx->buf, POLY1305_BLOCK_SIZE, 0);
+ }
+
+ poly1305_emit_arm(&dctx->h, dst, dctx->s);
+ *dctx = (struct poly1305_desc_ctx){};
+}
+EXPORT_SYMBOL(poly1305_final_arch);
+
+static int arm_poly1305_final(struct shash_desc *desc, u8 *dst)
+{
+ struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
+
+ if (unlikely(!dctx->sset))
+ return -ENOKEY;
+
+ poly1305_final_arch(dctx, dst);
+ return 0;
+}
+
+static struct shash_alg arm_poly1305_algs[] = {{
+ .init = arm_poly1305_init,
+ .update = arm_poly1305_update,
+ .final = arm_poly1305_final,
+ .digestsize = POLY1305_DIGEST_SIZE,
+ .descsize = sizeof(struct poly1305_desc_ctx),
+
+ .base.cra_name = "poly1305",
+ .base.cra_driver_name = "poly1305-arm",
+ .base.cra_priority = 150,
+ .base.cra_blocksize = POLY1305_BLOCK_SIZE,
+ .base.cra_module = THIS_MODULE,
+#ifdef CONFIG_KERNEL_MODE_NEON
+}, {
+ .init = arm_poly1305_init,
+ .update = arm_poly1305_update_neon,
+ .final = arm_poly1305_final,
+ .digestsize = POLY1305_DIGEST_SIZE,
+ .descsize = sizeof(struct poly1305_desc_ctx),
+
+ .base.cra_name = "poly1305",
+ .base.cra_driver_name = "poly1305-neon",
+ .base.cra_priority = 200,
+ .base.cra_blocksize = POLY1305_BLOCK_SIZE,
+ .base.cra_module = THIS_MODULE,
+#endif
+}};
+
+static int __init arm_poly1305_mod_init(void)
+{
+ if (IS_ENABLED(CONFIG_KERNEL_MODE_NEON) &&
+ (elf_hwcap & HWCAP_NEON))
+ static_branch_enable(&have_neon);
+ else if (IS_REACHABLE(CONFIG_CRYPTO_HASH))
+ /* register only the first entry */
+ return crypto_register_shash(&arm_poly1305_algs[0]);
+
+ return IS_REACHABLE(CONFIG_CRYPTO_HASH) ?
+ crypto_register_shashes(arm_poly1305_algs,
+ ARRAY_SIZE(arm_poly1305_algs)) : 0;
+}
+
+static void __exit arm_poly1305_mod_exit(void)
+{
+ if (!IS_REACHABLE(CONFIG_CRYPTO_HASH))
+ return;
+ if (!static_branch_likely(&have_neon)) {
+ crypto_unregister_shash(&arm_poly1305_algs[0]);
+ return;
+ }
+ crypto_unregister_shashes(arm_poly1305_algs,
+ ARRAY_SIZE(arm_poly1305_algs));
+}
+
+module_init(arm_poly1305_mod_init);
+module_exit(arm_poly1305_mod_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS_CRYPTO("poly1305");
+MODULE_ALIAS_CRYPTO("poly1305-arm");
+MODULE_ALIAS_CRYPTO("poly1305-neon");
diff --git a/arch/arm/include/asm/clocksource.h b/arch/arm/include/asm/clocksource.h
index 0b350a7..13651c7 100644
--- a/arch/arm/include/asm/clocksource.h
+++ b/arch/arm/include/asm/clocksource.h
@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_CLOCKSOURCE_H
#define _ASM_CLOCKSOURCE_H
-struct arch_clocksource_data {
- bool vdso_direct; /* Usable for direct VDSO access? */
-};
+#include <asm/vdso/clocksource.h>
-#endif
+#endif /* _ASM_CLOCKSOURCE_H */
diff --git a/arch/arm/include/asm/cp15.h b/arch/arm/include/asm/cp15.h
index d2453e2d..a54230e 100644
--- a/arch/arm/include/asm/cp15.h
+++ b/arch/arm/include/asm/cp15.h
@@ -50,25 +50,7 @@
#ifdef CONFIG_CPU_CP15
-#define __ACCESS_CP15(CRn, Op1, CRm, Op2) \
- "mrc", "mcr", __stringify(p15, Op1, %0, CRn, CRm, Op2), u32
-#define __ACCESS_CP15_64(Op1, CRm) \
- "mrrc", "mcrr", __stringify(p15, Op1, %Q0, %R0, CRm), u64
-
-#define __read_sysreg(r, w, c, t) ({ \
- t __val; \
- asm volatile(r " " c : "=r" (__val)); \
- __val; \
-})
-#define read_sysreg(...) __read_sysreg(__VA_ARGS__)
-
-#define __write_sysreg(v, r, w, c, t) asm volatile(w " " c : : "r" ((t)(v)))
-#define write_sysreg(v, ...) __write_sysreg(v, __VA_ARGS__)
-
-#define BPIALL __ACCESS_CP15(c7, 0, c5, 6)
-#define ICIALLU __ACCESS_CP15(c7, 0, c5, 0)
-
-#define CNTVCT __ACCESS_CP15_64(1, c14)
+#include <asm/vdso/cp15.h>
extern unsigned long cr_alignment; /* defined in entry-armv.S */
diff --git a/arch/arm/include/asm/processor.h b/arch/arm/include/asm/processor.h
index cb2a342..ab0fe3d7 100644
--- a/arch/arm/include/asm/processor.h
+++ b/arch/arm/include/asm/processor.h
@@ -23,6 +23,7 @@
#include <asm/ptrace.h>
#include <asm/types.h>
#include <asm/unified.h>
+#include <asm/vdso/processor.h>
#ifdef __KERNEL__
#define STACK_TOP ((current->personality & ADDR_LIMIT_32BIT) ? \
@@ -94,16 +95,6 @@ extern void release_thread(struct task_struct *);
unsigned long get_wchan(struct task_struct *p);
-#if __LINUX_ARM_ARCH__ == 6 || defined(CONFIG_ARM_ERRATA_754327)
-#define cpu_relax() \
- do { \
- smp_mb(); \
- __asm__ __volatile__("nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"); \
- } while (0)
-#else
-#define cpu_relax() barrier()
-#endif
-
#define task_pt_regs(p) \
((struct pt_regs *)(THREAD_START_SP + task_stack_page(p)) - 1)
diff --git a/arch/arm/include/asm/smp.h b/arch/arm/include/asm/smp.h
index 709a559..cd660dd 100644
--- a/arch/arm/include/asm/smp.h
+++ b/arch/arm/include/asm/smp.h
@@ -49,6 +49,12 @@ extern void smp_init_cpus(void);
extern void set_smp_cross_call(void (*)(const struct cpumask *, unsigned int));
/*
+ * Provide a function to set a callback function pointer for updating the ipi
+ * history.
+ */
+extern void set_update_ipi_history_callback(void (*fn)(int));
+
+/*
* Called from platform specific assembly code, this is the
* secondary CPU entry point.
*/
diff --git a/arch/arm/include/asm/system_misc.h b/arch/arm/include/asm/system_misc.h
index 8e76db8..8a0040f 100644
--- a/arch/arm/include/asm/system_misc.h
+++ b/arch/arm/include/asm/system_misc.h
@@ -37,6 +37,7 @@ static inline void harden_branch_predictor(void)
#define UDBG_BUS (1 << 4)
extern unsigned int user_debug;
+extern char* (*arch_read_hardware_id)(void);
static inline int handle_guest_sea(phys_addr_t addr, unsigned int esr)
{
diff --git a/arch/arm/include/asm/topology.h b/arch/arm/include/asm/topology.h
index 5d88d2f..201dc20 100644
--- a/arch/arm/include/asm/topology.h
+++ b/arch/arm/include/asm/topology.h
@@ -30,9 +30,15 @@ const struct cpumask *cpu_coregroup_mask(int cpu);
/* Replace task scheduler's default frequency-invariant accounting */
#define arch_scale_freq_capacity topology_get_freq_scale
+/* Replace task scheduler's default max-frequency-invariant accounting */
+#define arch_scale_max_freq_capacity topology_get_max_freq_scale
+
/* Replace task scheduler's default cpu-invariant accounting */
#define arch_scale_cpu_capacity topology_get_cpu_scale
+/* Enable topology flag updates */
+#define arch_update_cpu_topology topology_update_cpu_topology
+
#else
static inline void init_cpu_topology(void) { }
diff --git a/arch/arm/include/asm/vdso/clocksource.h b/arch/arm/include/asm/vdso/clocksource.h
new file mode 100644
index 0000000..6daa9ba
--- /dev/null
+++ b/arch/arm/include/asm/vdso/clocksource.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_VDSOCLOCKSOURCE_H
+#define __ASM_VDSOCLOCKSOURCE_H
+
+struct arch_clocksource_data {
+ bool vdso_direct; /* Usable for direct VDSO access? */
+};
+
+#endif /* __ASM_VDSOCLOCKSOURCE_H */
diff --git a/arch/arm/include/asm/vdso/cp15.h b/arch/arm/include/asm/vdso/cp15.h
new file mode 100644
index 0000000..bed16fa
--- /dev/null
+++ b/arch/arm/include/asm/vdso/cp15.h
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020 ARM Ltd.
+ */
+#ifndef __ASM_VDSO_CP15_H
+#define __ASM_VDSO_CP15_H
+
+#ifndef __ASSEMBLY__
+
+#ifdef CONFIG_CPU_CP15
+
+#include <linux/stringify.h>
+
+#define __ACCESS_CP15(CRn, Op1, CRm, Op2) \
+ "mrc", "mcr", __stringify(p15, Op1, %0, CRn, CRm, Op2), u32
+#define __ACCESS_CP15_64(Op1, CRm) \
+ "mrrc", "mcrr", __stringify(p15, Op1, %Q0, %R0, CRm), u64
+
+#define __read_sysreg(r, w, c, t) ({ \
+ t __val; \
+ asm volatile(r " " c : "=r" (__val)); \
+ __val; \
+})
+#define read_sysreg(...) __read_sysreg(__VA_ARGS__)
+
+#define __write_sysreg(v, r, w, c, t) asm volatile(w " " c : : "r" ((t)(v)))
+#define write_sysreg(v, ...) __write_sysreg(v, __VA_ARGS__)
+
+#define BPIALL __ACCESS_CP15(c7, 0, c5, 6)
+#define ICIALLU __ACCESS_CP15(c7, 0, c5, 0)
+
+#define CNTVCT __ACCESS_CP15_64(1, c14)
+
+#endif /* CONFIG_CPU_CP15 */
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __ASM_VDSO_CP15_H */
diff --git a/arch/arm/include/asm/vdso/gettimeofday.h b/arch/arm/include/asm/vdso/gettimeofday.h
new file mode 100644
index 0000000..36dc185
--- /dev/null
+++ b/arch/arm/include/asm/vdso/gettimeofday.h
@@ -0,0 +1,145 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2018 ARM Limited
+ */
+#ifndef __ASM_VDSO_GETTIMEOFDAY_H
+#define __ASM_VDSO_GETTIMEOFDAY_H
+
+#ifndef __ASSEMBLY__
+
+#include <asm/errno.h>
+#include <asm/unistd.h>
+#include <asm/vdso/cp15.h>
+#include <uapi/linux/time.h>
+
+#define VDSO_HAS_CLOCK_GETRES 1
+
+extern struct vdso_data *__get_datapage(void);
+
+static __always_inline int gettimeofday_fallback(
+ struct __kernel_old_timeval *_tv,
+ struct timezone *_tz)
+{
+ register struct timezone *tz asm("r1") = _tz;
+ register struct __kernel_old_timeval *tv asm("r0") = _tv;
+ register long ret asm ("r0");
+ register long nr asm("r7") = __NR_gettimeofday;
+
+ asm volatile(
+ " swi #0\n"
+ : "=r" (ret)
+ : "r" (tv), "r" (tz), "r" (nr)
+ : "memory");
+
+ return ret;
+}
+
+static __always_inline long clock_gettime_fallback(
+ clockid_t _clkid,
+ struct __kernel_timespec *_ts)
+{
+ register struct __kernel_timespec *ts asm("r1") = _ts;
+ register clockid_t clkid asm("r0") = _clkid;
+ register long ret asm ("r0");
+ register long nr asm("r7") = __NR_clock_gettime64;
+
+ asm volatile(
+ " swi #0\n"
+ : "=r" (ret)
+ : "r" (clkid), "r" (ts), "r" (nr)
+ : "memory");
+
+ return ret;
+}
+
+static __always_inline long clock_gettime32_fallback(
+ clockid_t _clkid,
+ struct old_timespec32 *_ts)
+{
+ register struct old_timespec32 *ts asm("r1") = _ts;
+ register clockid_t clkid asm("r0") = _clkid;
+ register long ret asm ("r0");
+ register long nr asm("r7") = __NR_clock_gettime;
+
+ asm volatile(
+ " swi #0\n"
+ : "=r" (ret)
+ : "r" (clkid), "r" (ts), "r" (nr)
+ : "memory");
+
+ return ret;
+}
+
+static __always_inline int clock_getres_fallback(
+ clockid_t _clkid,
+ struct __kernel_timespec *_ts)
+{
+ register struct __kernel_timespec *ts asm("r1") = _ts;
+ register clockid_t clkid asm("r0") = _clkid;
+ register long ret asm ("r0");
+ register long nr asm("r7") = __NR_clock_getres_time64;
+
+ asm volatile(
+ " swi #0\n"
+ : "=r" (ret)
+ : "r" (clkid), "r" (ts), "r" (nr)
+ : "memory");
+
+ return ret;
+}
+
+static __always_inline int clock_getres32_fallback(
+ clockid_t _clkid,
+ struct old_timespec32 *_ts)
+{
+ register struct old_timespec32 *ts asm("r1") = _ts;
+ register clockid_t clkid asm("r0") = _clkid;
+ register long ret asm ("r0");
+ register long nr asm("r7") = __NR_clock_getres;
+
+ asm volatile(
+ " swi #0\n"
+ : "=r" (ret)
+ : "r" (clkid), "r" (ts), "r" (nr)
+ : "memory");
+
+ return ret;
+}
+
+static inline bool arm_vdso_hres_capable(void)
+{
+ return IS_ENABLED(CONFIG_ARM_ARCH_TIMER);
+}
+#define __arch_vdso_hres_capable arm_vdso_hres_capable
+
+static __always_inline u64 __arch_get_hw_counter(int clock_mode)
+{
+#ifdef CONFIG_ARM_ARCH_TIMER
+ u64 cycle_now;
+
+ /*
+ * Core checks for mode already, so this raced against a concurrent
+ * update. Return something. Core will do another round and then
+ * see the mode change and fallback to the syscall.
+ */
+ if (clock_mode == VDSO_CLOCKMODE_NONE)
+ return 0;
+
+ isb();
+ cycle_now = read_sysreg(CNTVCT);
+
+ return cycle_now;
+#else
+ /* Make GCC happy. This is compiled out anyway */
+ return 0;
+#endif
+}
+
+static __always_inline const struct vdso_data *__arch_get_vdso_data(void)
+{
+ return __get_datapage();
+}
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* __ASM_VDSO_GETTIMEOFDAY_H */
diff --git a/arch/arm/include/asm/vdso/processor.h b/arch/arm/include/asm/vdso/processor.h
new file mode 100644
index 0000000..45efb3f
--- /dev/null
+++ b/arch/arm/include/asm/vdso/processor.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020 ARM Ltd.
+ */
+#ifndef __ASM_VDSO_PROCESSOR_H
+#define __ASM_VDSO_PROCESSOR_H
+
+#ifndef __ASSEMBLY__
+
+#if __LINUX_ARM_ARCH__ == 6 || defined(CONFIG_ARM_ERRATA_754327)
+#define cpu_relax() \
+ do { \
+ smp_mb(); \
+ __asm__ __volatile__("nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"); \
+ } while (0)
+#else
+#define cpu_relax() barrier()
+#endif
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __ASM_VDSO_PROCESSOR_H */
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 95db057..bd9e587 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -113,6 +113,17 @@ unsigned int elf_hwcap2 __read_mostly;
EXPORT_SYMBOL(elf_hwcap2);
+char* (*arch_read_hardware_id)(void);
+EXPORT_SYMBOL(arch_read_hardware_id);
+
+/* Vendor stub */
+unsigned int boot_reason;
+EXPORT_SYMBOL_GPL(boot_reason);
+
+/* Vendor stub */
+unsigned int cold_boot;
+EXPORT_SYMBOL_GPL(cold_boot);
+
#ifdef MULTI_CPU
struct processor processor __ro_after_init;
#if defined(CONFIG_BIG_LITTLE) && defined(CONFIG_HARDEN_BRANCH_PREDICTOR)
@@ -1295,7 +1306,10 @@ static int c_show(struct seq_file *m, void *v)
seq_printf(m, "CPU revision\t: %d\n\n", cpuid & 15);
}
- seq_printf(m, "Hardware\t: %s\n", machine_name);
+ if (!arch_read_hardware_id)
+ seq_printf(m, "Hardware\t: %s\n", machine_name);
+ else
+ seq_printf(m, "Hardware\t: %s\n", arch_read_hardware_id());
seq_printf(m, "Revision\t: %04x\n", system_rev);
seq_printf(m, "Serial\t\t: %s\n", system_serial);
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index bada66e..bc6e518 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -516,6 +516,14 @@ void __init set_smp_cross_call(void (*fn)(const struct cpumask *, unsigned int))
__smp_cross_call = fn;
}
+static void (*__smp_update_ipi_history_cb)(int cpu);
+
+void set_update_ipi_history_callback(void (*fn)(int))
+{
+ __smp_update_ipi_history_cb = fn;
+}
+EXPORT_SYMBOL_GPL(set_update_ipi_history_callback);
+
static const char *ipi_types[NR_IPI] __tracepoint_string = {
#define S(x,s) [x] = s
S(IPI_WAKEUP, "CPU wakeup interrupts"),
@@ -708,6 +716,8 @@ void handle_IPI(int ipinr, struct pt_regs *regs)
void smp_send_reschedule(int cpu)
{
+ if (__smp_update_ipi_history_cb)
+ __smp_update_ipi_history_cb(cpu);
smp_cross_call(cpumask_of(cpu), IPI_RESCHEDULE);
}
diff --git a/arch/arm/kvm/Kconfig b/arch/arm/kvm/Kconfig
index e2bd35b..c09fcc0 100644
--- a/arch/arm/kvm/Kconfig
+++ b/arch/arm/kvm/Kconfig
@@ -22,7 +22,6 @@
bool "Kernel-based Virtual Machine (KVM) support"
depends on MMU && OF
select PREEMPT_NOTIFIERS
- select ANON_INODES
select ARM_GIC
select ARM_GIC_V3
select ARM_GIC_V3_ITS
diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
index 0bff017..93fcf1a 100644
--- a/arch/arm/lib/Makefile
+++ b/arch/arm/lib/Makefile
@@ -5,7 +5,7 @@
# Copyright (C) 1995-2000 Russell King
#
-lib-y := backtrace.o changebit.o csumipv6.o csumpartial.o \
+lib-y := changebit.o csumipv6.o csumpartial.o \
csumpartialcopy.o csumpartialcopyuser.o clearbit.o \
delay.o delay-loop.o findbit.o memchr.o memcpy.o \
memmove.o memset.o setbit.o \
@@ -19,6 +19,12 @@
mmu-y := clear_user.o copy_page.o getuser.o putuser.o \
copy_from_user.o copy_to_user.o
+ifdef CONFIG_CC_IS_CLANG
+ lib-y += backtrace-clang.o
+else
+ lib-y += backtrace.o
+endif
+
# using lib_ here won't override already available weak symbols
obj-$(CONFIG_UACCESS_WITH_MEMCPY) += uaccess_with_memcpy.o
diff --git a/arch/arm/lib/backtrace-clang.S b/arch/arm/lib/backtrace-clang.S
new file mode 100644
index 0000000..2ff3751
--- /dev/null
+++ b/arch/arm/lib/backtrace-clang.S
@@ -0,0 +1,217 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * linux/arch/arm/lib/backtrace-clang.S
+ *
+ * Copyright (C) 2019 Nathan Huckleberry
+ *
+ */
+#include <linux/kern_levels.h>
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+ .text
+
+/* fp is 0 or stack frame */
+
+#define frame r4
+#define sv_fp r5
+#define sv_pc r6
+#define mask r7
+#define sv_lr r8
+
+ENTRY(c_backtrace)
+
+#if !defined(CONFIG_FRAME_POINTER) || !defined(CONFIG_PRINTK)
+ ret lr
+ENDPROC(c_backtrace)
+#else
+
+
+/*
+ * Clang does not store pc or sp in function prologues so we don't know exactly
+ * where the function starts.
+ *
+ * We can treat the current frame's lr as the saved pc and the preceding
+ * frame's lr as the current frame's lr, but we can't trace the most recent
+ * call. Inserting a false stack frame allows us to reference the function
+ * called last in the stacktrace.
+ *
+ * If the call instruction was a bl we can look at the callers branch
+ * instruction to calculate the saved pc. We can recover the pc in most cases,
+ * but in cases such as calling function pointers we cannot. In this case,
+ * default to using the lr. This will be some address in the function, but will
+ * not be the function start.
+ *
+ * Unfortunately due to the stack frame layout we can't dump r0 - r3, but these
+ * are less frequently saved.
+ *
+ * Stack frame layout:
+ * <larger addresses>
+ * saved lr
+ * frame=> saved fp
+ * optionally saved caller registers (r4 - r10)
+ * optionally saved arguments (r0 - r3)
+ * <top of stack frame>
+ * <smaller addresses>
+ *
+ * Functions start with the following code sequence:
+ * corrected pc => stmfd sp!, {..., fp, lr}
+ * add fp, sp, #x
+ * stmfd sp!, {r0 - r3} (optional)
+ *
+ *
+ *
+ *
+ *
+ *
+ * The diagram below shows an example stack setup for dump_stack.
+ *
+ * The frame for c_backtrace has pointers to the code of dump_stack. This is
+ * why the frame of c_backtrace is used to for the pc calculation of
+ * dump_stack. This is why we must move back a frame to print dump_stack.
+ *
+ * The stored locals for dump_stack are in dump_stack's frame. This means that
+ * to fully print dump_stack's frame we need both the frame for dump_stack (for
+ * locals) and the frame that was called by dump_stack (for pc).
+ *
+ * To print locals we must know where the function start is. If we read the
+ * function prologue opcodes we can determine which variables are stored in the
+ * stack frame.
+ *
+ * To find the function start of dump_stack we can look at the stored LR of
+ * show_stack. It points at the instruction directly after the bl dump_stack.
+ * We can then read the offset from the bl opcode to determine where the branch
+ * takes us. The address calculated must be the start of dump_stack.
+ *
+ * c_backtrace frame dump_stack:
+ * {[LR] } ============| ...
+ * {[FP] } =======| | bl c_backtrace
+ * | |=> ...
+ * {[R4-R10]} |
+ * {[R0-R3] } | show_stack:
+ * dump_stack frame | ...
+ * {[LR] } =============| bl dump_stack
+ * {[FP] } <=======| |=> ...
+ * {[R4-R10]}
+ * {[R0-R3] }
+ */
+
+ stmfd sp!, {r4 - r9, fp, lr} @ Save an extra register
+ @ to ensure 8 byte alignment
+ movs frame, r0 @ if frame pointer is zero
+ beq no_frame @ we have no stack frames
+ tst r1, #0x10 @ 26 or 32-bit mode?
+ moveq mask, #0xfc000003
+ movne mask, #0 @ mask for 32-bit
+
+/*
+ * Switches the current frame to be the frame for dump_stack.
+ */
+ add frame, sp, #24 @ switch to false frame
+for_each_frame: tst frame, mask @ Check for address exceptions
+ bne no_frame
+
+/*
+ * sv_fp is the stack frame with the locals for the current considered
+ * function.
+ *
+ * sv_pc is the saved lr frame the frame above. This is a pointer to a code
+ * address within the current considered function, but it is not the function
+ * start. This value gets updated to be the function start later if it is
+ * possible.
+ */
+1001: ldr sv_pc, [frame, #4] @ get saved 'pc'
+1002: ldr sv_fp, [frame, #0] @ get saved fp
+
+ teq sv_fp, mask @ make sure next frame exists
+ beq no_frame
+
+/*
+ * sv_lr is the lr from the function that called the current function. This is
+ * a pointer to a code address in the current function's caller. sv_lr-4 is
+ * the instruction used to call the current function.
+ *
+ * This sv_lr can be used to calculate the function start if the function was
+ * called using a bl instruction. If the function start can be recovered sv_pc
+ * is overwritten with the function start.
+ *
+ * If the current function was called using a function pointer we cannot
+ * recover the function start and instead continue with sv_pc as an arbitrary
+ * value within the current function. If this is the case we cannot print
+ * registers for the current function, but the stacktrace is still printed
+ * properly.
+ */
+1003: ldr sv_lr, [sv_fp, #4] @ get saved lr from next frame
+
+ ldr r0, [sv_lr, #-4] @ get call instruction
+ ldr r3, .Lopcode+4
+ and r2, r3, r0 @ is this a bl call
+ teq r2, r3
+ bne finished_setup @ give up if it's not
+ and r0, #0xffffff @ get call offset 24-bit int
+ lsl r0, r0, #8 @ sign extend offset
+ asr r0, r0, #8
+ ldr sv_pc, [sv_fp, #4] @ get lr address
+ add sv_pc, sv_pc, #-4 @ get call instruction address
+ add sv_pc, sv_pc, #8 @ take care of prefetch
+ add sv_pc, sv_pc, r0, lsl #2@ find function start
+
+finished_setup:
+
+ bic sv_pc, sv_pc, mask @ mask PC/LR for the mode
+
+/*
+ * Print the function (sv_pc) and where it was called from (sv_lr).
+ */
+1004: mov r0, sv_pc
+
+ mov r1, sv_lr
+ mov r2, frame
+ bic r1, r1, mask @ mask PC/LR for the mode
+ bl dump_backtrace_entry
+
+/*
+ * Test if the function start is a stmfd instruction to determine which
+ * registers were stored in the function prologue.
+ *
+ * If we could not recover the sv_pc because we were called through a function
+ * pointer the comparison will fail and no registers will print. Unwinding will
+ * continue as if there had been no registers stored in this frame.
+ */
+1005: ldr r1, [sv_pc, #0] @ if stmfd sp!, {..., fp, lr}
+ ldr r3, .Lopcode @ instruction exists,
+ teq r3, r1, lsr #11
+ ldr r0, [frame] @ locals are stored in
+ @ the preceding frame
+ subeq r0, r0, #4
+ bleq dump_backtrace_stm @ dump saved registers
+
+/*
+ * If we are out of frames or if the next frame is invalid.
+ */
+ teq sv_fp, #0 @ zero saved fp means
+ beq no_frame @ no further frames
+
+ cmp sv_fp, frame @ next frame must be
+ mov frame, sv_fp @ above the current frame
+ bhi for_each_frame
+
+1006: adr r0, .Lbad
+ mov r1, frame
+ bl printk
+no_frame: ldmfd sp!, {r4 - r9, fp, pc}
+ENDPROC(c_backtrace)
+ .pushsection __ex_table,"a"
+ .align 3
+ .long 1001b, 1006b
+ .long 1002b, 1006b
+ .long 1003b, 1006b
+ .long 1004b, 1006b
+ .long 1005b, 1006b
+ .popsection
+
+.Lbad: .asciz "Backtrace aborted due to bad frame pointer <%p>\n"
+ .align
+.Lopcode: .word 0xe92d4800 >> 11 @ stmfd sp!, {... fp, lr}
+ .word 0x0b000000 @ bl if these bits are set
+
+#endif
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index 6e59c11..6b4f497 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -330,7 +330,7 @@ DT_MACHINE_START(DRA74X_DT, "Generic DRA74X (Flattened Device Tree)")
.init_late = dra7xx_init_late,
.init_irq = omap_gic_of_init,
.init_machine = omap_generic_init,
- .init_time = omap3_gptimer_timer_init,
+ .init_time = omap5_realtime_timer_init,
.dt_compat = dra74x_boards_compat,
.restart = omap44xx_restart,
MACHINE_END
@@ -353,7 +353,7 @@ DT_MACHINE_START(DRA72X_DT, "Generic DRA72X (Flattened Device Tree)")
.init_late = dra7xx_init_late,
.init_irq = omap_gic_of_init,
.init_machine = omap_generic_init,
- .init_time = omap3_gptimer_timer_init,
+ .init_time = omap5_realtime_timer_init,
.dt_compat = dra72x_boards_compat,
.restart = omap44xx_restart,
MACHINE_END
diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index c4ba848..f24858d 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -42,7 +42,6 @@
#include <linux/platform_device.h>
#include <linux/platform_data/dmtimer-omap.h>
#include <linux/sched_clock.h>
-#include <linux/cpu.h>
#include <asm/mach/time.h>
#include <asm/smp_twd.h>
@@ -422,53 +421,6 @@ static void __init dmtimer_clkevt_init_common(struct dmtimer_clockevent *clkevt,
timer->rate);
}
-static DEFINE_PER_CPU(struct dmtimer_clockevent, dmtimer_percpu_timer);
-
-static int omap_gptimer_starting_cpu(unsigned int cpu)
-{
- struct dmtimer_clockevent *clkevt = per_cpu_ptr(&dmtimer_percpu_timer, cpu);
- struct clock_event_device *dev = &clkevt->dev;
- struct omap_dm_timer *timer = &clkevt->timer;
-
- clockevents_config_and_register(dev, timer->rate, 3, ULONG_MAX);
- irq_force_affinity(dev->irq, cpumask_of(cpu));
-
- return 0;
-}
-
-static int __init dmtimer_percpu_quirk_init(void)
-{
- struct dmtimer_clockevent *clkevt;
- struct clock_event_device *dev;
- struct device_node *arm_timer;
- struct omap_dm_timer *timer;
- int cpu = 0;
-
- arm_timer = of_find_compatible_node(NULL, NULL, "arm,armv7-timer");
- if (of_device_is_available(arm_timer)) {
- pr_warn_once("ARM architected timer wrap issue i940 detected\n");
- return 0;
- }
-
- for_each_possible_cpu(cpu) {
- clkevt = per_cpu_ptr(&dmtimer_percpu_timer, cpu);
- dev = &clkevt->dev;
- timer = &clkevt->timer;
-
- dmtimer_clkevt_init_common(clkevt, 0, "timer_sys_ck",
- CLOCK_EVT_FEAT_ONESHOT,
- cpumask_of(cpu),
- "assigned-clock-parents",
- 500, "percpu timer");
- }
-
- cpuhp_setup_state(CPUHP_AP_OMAP_DM_TIMER_STARTING,
- "clockevents/omap/gptimer:starting",
- omap_gptimer_starting_cpu, NULL);
-
- return 0;
-}
-
/* Clocksource code */
static struct omap_dm_timer clksrc;
static bool use_gptimer_clksrc __initdata;
@@ -613,9 +565,6 @@ static void __init __omap_sync32k_timer_init(int clkev_nr, const char *clkev_src
3, /* Timer internal resynch latency */
0xffffffff);
- if (soc_is_dra7xx())
- dmtimer_percpu_quirk_init();
-
/* Enable the use of clocksource="gp_timer" kernel parameter */
if (use_gptimer_clksrc || gptimer)
omap2_gptimer_clocksource_init(clksrc_nr, clksrc_src,
@@ -643,7 +592,7 @@ void __init omap3_secure_sync32k_timer_init(void)
#endif /* CONFIG_ARCH_OMAP3 */
#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_SOC_AM33XX) || \
- defined(CONFIG_SOC_AM43XX) || defined(CONFIG_SOC_DRA7XX)
+ defined(CONFIG_SOC_AM43XX)
void __init omap3_gptimer_timer_init(void)
{
__omap_sync32k_timer_init(2, "timer_sys_ck", NULL,
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 8211cf4..a24802b 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -378,7 +378,7 @@ __dma_alloc_remap(struct page *page, size_t size, gfp_t gfp, pgprot_t prot,
static void __dma_free_remap(void *cpu_addr, size_t size)
{
dma_common_free_remap(cpu_addr, size,
- VM_ARM_DMA_CONSISTENT | VM_USERMAP);
+ VM_ARM_DMA_CONSISTENT | VM_USERMAP, false);
}
#define DEFAULT_DMA_COHERENT_POOL_SIZE SZ_256K
@@ -1648,7 +1648,7 @@ void __arm_iommu_free_attrs(struct device *dev, size_t size, void *cpu_addr,
if ((attrs & DMA_ATTR_NO_KERNEL_MAPPING) == 0) {
dma_common_free_remap(cpu_addr, size,
- VM_ARM_DMA_CONSISTENT | VM_USERMAP);
+ VM_ARM_DMA_CONSISTENT | VM_USERMAP, false);
}
__iommu_remove_mapping(dev, handle, size);
@@ -2393,6 +2393,7 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
#endif
dev->archdata.dma_ops_setup = true;
}
+EXPORT_SYMBOL_GPL(arch_setup_dma_ops);
void arch_teardown_dma_ops(struct device *dev)
{
diff --git a/arch/arm/tools/syscall.tbl b/arch/arm/tools/syscall.tbl
index 8edf93b4..717426d 100644
--- a/arch/arm/tools/syscall.tbl
+++ b/arch/arm/tools/syscall.tbl
@@ -414,3 +414,5 @@
397 common statx sys_statx
398 common rseq sys_rseq
399 common io_pgetevents sys_io_pgetevents
+424 common pidfd_send_signal sys_pidfd_send_signal
+434 common pidfd_open sys_pidfd_open
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 1daefa5..2d4df07 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -57,6 +57,9 @@
select ARCH_USE_QUEUED_RWLOCKS
select ARCH_USE_QUEUED_SPINLOCKS
select ARCH_SUPPORTS_MEMORY_FAILURE
+ select ARCH_SUPPORTS_LTO_CLANG
+ select ARCH_SUPPORTS_THINLTO
+ select ARCH_SUPPORTS_SHADOW_CALL_STACK if CC_HAVE_SHADOW_CALL_STACK
select ARCH_SUPPORTS_ATOMIC_RMW
select ARCH_SUPPORTS_INT128 if GCC_VERSION >= 50000 || CC_IS_CLANG
select ARCH_SUPPORTS_NUMA_BALANCING
@@ -97,6 +100,7 @@
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
select GENERIC_TIME_VSYSCALL
+ select GENERIC_GETTIMEOFDAY
select HANDLE_DOMAIN_IRQ
select HARDIRQS_SW_RESEND
select HAVE_ACPI_APEI if (ACPI && EFI)
@@ -106,10 +110,11 @@
select HAVE_ARCH_HUGE_VMAP
select HAVE_ARCH_JUMP_LABEL
select HAVE_ARCH_KASAN if !(ARM64_16K_PAGES && ARM64_VA_BITS_48)
+ select HAVE_ARCH_KASAN_SW_TAGS if HAVE_ARCH_KASAN
select HAVE_ARCH_KGDB
select HAVE_ARCH_MMAP_RND_BITS
select HAVE_ARCH_MMAP_RND_COMPAT_BITS if COMPAT
- select HAVE_ARCH_PREL32_RELOCATIONS
+ select HAVE_ARCH_PREL32_RELOCATIONS if !LTO_CLANG
select HAVE_ARCH_SECCOMP_FILTER
select HAVE_ARCH_STACKLEAK
select HAVE_ARCH_THREAD_STRUCT_WHITELIST
@@ -129,11 +134,13 @@
select HAVE_EFFICIENT_UNALIGNED_ACCESS
select HAVE_FTRACE_MCOUNT_RECORD
select HAVE_FUNCTION_TRACER
- select HAVE_FUNCTION_GRAPH_TRACER
+ select HAVE_FUNCTION_GRAPH_TRACER if !SHADOW_CALL_STACK
select HAVE_GCC_PLUGINS
select HAVE_GENERIC_DMA_COHERENT
select HAVE_HW_BREAKPOINT if PERF_EVENTS
select HAVE_IRQ_TIME_ACCOUNTING
+ select HAVE_KERNEL_GZIP
+ select HAVE_KERNEL_LZ4
select HAVE_MEMBLOCK
select HAVE_MEMBLOCK_NODE_MAP if NUMA
select HAVE_NMI
@@ -148,6 +155,7 @@
select HAVE_SYSCALL_TRACEPOINTS
select HAVE_KPROBES
select HAVE_KRETPROBES
+ select HAVE_GENERIC_VDSO
select IOMMU_DMA if IOMMU_SUPPORT
select IRQ_DOMAIN
select IRQ_FORCED_THREADING
@@ -764,6 +772,18 @@
Say Y here to experiment with turning CPUs off and on. CPUs
can be controlled through /sys/devices/system/cpu.
+# The GPIO number here must be sorted by descending number. In case of
+# a multiplatform kernel, we just want the highest value required by the
+# selected platforms.
+config ARCH_NR_GPIO
+ int "Number of GPIOs in the system"
+ default 1280 if ARCH_QCOM
+ default 256
+ help
+ Maximum number of GPIOs in the system.
+
+ If unsure, leave the default value.
+
# Common NUMA Features
config NUMA
bool "Numa Memory Allocation and Scheduler Support"
@@ -837,6 +857,42 @@
config ARCH_HAS_CACHE_LINE_SIZE
def_bool y
+
+# Supported by clang >= 7.0
+config CC_HAVE_SHADOW_CALL_STACK
+ def_bool $(cc-option, -fsanitize=shadow-call-stack -ffixed-x18)
+
+config ARM64_DMA_USE_IOMMU
+ bool "ARM64 DMA iommu integration"
+ select ARM_HAS_SG_CHAIN
+ select NEED_SG_DMA_LENGTH
+ help
+ Enable using iommu through the standard dma apis.
+ dma_alloc_coherent() will allocate scatter-gather memory
+ which is made virtually contiguous via iommu.
+ Enable if system contains IOMMU hardware.
+
+if ARM64_DMA_USE_IOMMU
+
+config ARM64_DMA_IOMMU_ALIGNMENT
+ int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
+ range 4 9
+ default 9
+ help
+ DMA mapping framework by default aligns all buffers to the smallest
+ PAGE_SIZE order which is greater than or equal to the requested buffer
+ size. This works well for buffers up to a few hundreds kilobytes, but
+ for larger buffers it just a waste of address space. Drivers which has
+ relatively small addressing window (like 64Mib) might run out of
+ virtual space with just a few allocations.
+
+ With this parameter you can specify the maximum PAGE_SIZE order for
+ DMA IOMMU buffers. Larger buffers will be aligned only to this
+ specified order. The order is expressed as a power of two multiplied
+ by the PAGE_SIZE.
+
+endif
+
config SECCOMP
bool "Enable seccomp to safely compute untrusted bytecode"
---help---
@@ -979,6 +1035,28 @@
If unsure, say Y.
+config ARM64_TAGGED_ADDR_ABI
+ bool "Enable the tagged user addresses syscall ABI"
+ default y
+ help
+ When this option is enabled, user applications can opt in to a
+ relaxed ABI via prctl() allowing tagged addresses to be passed
+ to system calls as pointer arguments. For details, see
+ Documentation/arm64/tagged-address-abi.rst.
+
+config COMPAT_VDSO
+ bool "Enable vDSO for 32-bit applications"
+ depends on !CPU_BIG_ENDIAN && "$(CROSS_COMPILE_COMPAT)" != ""
+ select GENERIC_COMPAT_VDSO
+ default y
+ help
+ Place in the process address space of 32-bit applications an
+ ELF shared object providing fast implementations of gettimeofday
+ and clock_gettime.
+
+ You must have a 32-bit build of glibc 2.22 or later for programs
+ to seamlessly take advantage of this.
+
menuconfig ARMV8_DEPRECATED
bool "Emulate deprecated/obsolete ARMv8 instructions"
depends on COMPAT
@@ -1211,6 +1289,7 @@
config RELOCATABLE
bool
+ select ARCH_HAS_RELR
help
This builds the kernel as a Position Independent Executable (PIE),
which retains all relocation metadata required to relocate the
@@ -1275,6 +1354,23 @@
entering them here. As a minimum, you should specify the the
root device (e.g. root=/dev/nfs).
+choice
+ prompt "Kernel command line type" if CMDLINE != ""
+ default CMDLINE_FROM_BOOTLOADER
+
+config CMDLINE_FROM_BOOTLOADER
+ bool "Use bootloader kernel arguments if available"
+ help
+ Uses the command-line options passed by the boot loader. If
+ the boot loader doesn't provide any, the default kernel command
+ string provided in CMDLINE will be used.
+
+config CMDLINE_EXTEND
+ bool "Extend bootloader kernel arguments"
+ help
+ The command-line arguments provided by the boot loader will be
+ appended to the default kernel command string.
+
config CMDLINE_FORCE
bool "Always use the default kernel command string"
help
@@ -1282,6 +1378,7 @@
loader passes other arguments to the kernel.
This is useful if you cannot or don't want to change the
command-line options your boot loader passes to the kernel.
+endchoice
config EFI_STUB
bool
@@ -1337,6 +1434,34 @@
If you want to execute 32-bit userspace applications, say Y.
+config KUSER_HELPERS
+ bool "Enable kuser helpers page for 32 bit applications."
+ depends on COMPAT
+ default y
+ help
+ Warning: disabling this option may break 32-bit user programs.
+
+ Provide kuser helpers to compat tasks. The kernel provides
+ helper code to userspace in read only form at a fixed location
+ to allow userspace to be independent of the CPU type fitted to
+ the system. This permits binaries to be run on ARMv4 through
+ to ARMv8 without modification.
+
+ See Documentation/arm/kernel_user_helpers.txt for details.
+
+ However, the fixed address nature of these helpers can be used
+ by ROP (return orientated programming) authors when creating
+ exploits.
+
+ If all of the binaries and libraries which run on your platform
+ are built specifically for your platform, and make no use of
+ these helpers, then you can turn this option off to hinder
+ such exploits. However, in that case, if a binary or library
+ relying on those helpers is run, it will not function correctly.
+
+ Say N here only if you are absolutely certain that you do not
+ need these helpers; otherwise, the safe option is to say Y.
+
config SYSVIPC_COMPAT
def_bool y
depends on COMPAT && SYSVIPC
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index dc54a88..fb471be 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -49,14 +49,18 @@
endif
endif
-KBUILD_CFLAGS += -mgeneral-regs-only $(lseinstr) $(brokengasinst)
+KBUILD_CFLAGS += -mgeneral-regs-only $(lseinstr) $(brokengasinst) $(compat_vdso)
KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
KBUILD_CFLAGS += $(call cc-disable-warning, psabi)
-KBUILD_AFLAGS += $(lseinstr) $(brokengasinst)
+KBUILD_AFLAGS += $(lseinstr) $(brokengasinst) $(compat_vdso)
KBUILD_CFLAGS += $(call cc-option,-mabi=lp64)
KBUILD_AFLAGS += $(call cc-option,-mabi=lp64)
+ifeq ($(CONFIG_SHADOW_CALL_STACK), y)
+KBUILD_CFLAGS += -ffixed-x18
+endif
+
ifeq ($(CONFIG_CPU_BIG_ENDIAN), y)
KBUILD_CPPFLAGS += -mbig-endian
CHECKFLAGS += -D__AARCH64EB__
@@ -92,10 +96,19 @@
TEXT_OFFSET := 0x00080000
endif
+ifeq ($(CONFIG_KASAN_SW_TAGS), y)
+KASAN_SHADOW_SCALE_SHIFT := 4
+else
+KASAN_SHADOW_SCALE_SHIFT := 3
+endif
+
+KBUILD_CFLAGS += -DKASAN_SHADOW_SCALE_SHIFT=$(KASAN_SHADOW_SCALE_SHIFT)
+KBUILD_CPPFLAGS += -DKASAN_SHADOW_SCALE_SHIFT=$(KASAN_SHADOW_SCALE_SHIFT)
+KBUILD_AFLAGS += -DKASAN_SHADOW_SCALE_SHIFT=$(KASAN_SHADOW_SCALE_SHIFT)
+
# KASAN_SHADOW_OFFSET = VA_START + (1 << (VA_BITS - KASAN_SHADOW_SCALE_SHIFT))
# - (1 << (64 - KASAN_SHADOW_SCALE_SHIFT))
# in 32-bit arithmetic
-KASAN_SHADOW_SCALE_SHIFT := 3
KASAN_SHADOW_OFFSET := $(shell printf "0x%08x00000000\n" $$(( \
(0xffffffff & (-1 << ($(CONFIG_ARM64_VA_BITS) - 32))) \
+ (1 << ($(CONFIG_ARM64_VA_BITS) - 32 - $(KASAN_SHADOW_SCALE_SHIFT))) \
@@ -142,6 +155,7 @@
PHONY += vdso_install
vdso_install:
$(Q)$(MAKE) $(build)=arch/arm64/kernel/vdso $@
+ $(Q)$(MAKE) $(build)=arch/arm64/kernel/vdso32 $@
# We use MRPROPER_FILES and CLEAN_FILES now
archclean:
@@ -158,6 +172,9 @@
prepare: vdso_prepare
vdso_prepare: prepare0
$(Q)$(MAKE) $(build)=arch/arm64/kernel/vdso include/generated/vdso-offsets.h
+ $(if $(CONFIG_COMPAT_VDSO),$(Q)$(MAKE) \
+ $(build)=arch/arm64/kernel/vdso32 \
+ include/generated/vdso32-offsets.h)
endif
define archhelp
diff --git a/arch/arm64/OWNERS b/arch/arm64/OWNERS
new file mode 100644
index 0000000..257f4cf
--- /dev/null
+++ b/arch/arm64/OWNERS
@@ -0,0 +1,2 @@
+# include OWNERS from the authoritative android-mainline branch
+include kernel/common:android-mainline:/arch/arm64/OWNERS
diff --git a/arch/arm64/boot/dts/arm/juno-r2.dts b/arch/arm64/boot/dts/arm/juno-r2.dts
index ab77adb..66f0ec7 100644
--- a/arch/arm64/boot/dts/arm/juno-r2.dts
+++ b/arch/arm64/boot/dts/arm/juno-r2.dts
@@ -99,6 +99,7 @@
clocks = <&scpi_dvfs 0>;
cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
capacity-dmips-mhz = <1024>;
+ dynamic-power-coefficient = <450>;
};
A72_1: cpu@1 {
@@ -116,6 +117,7 @@
clocks = <&scpi_dvfs 0>;
cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
capacity-dmips-mhz = <1024>;
+ dynamic-power-coefficient = <450>;
};
A53_0: cpu@100 {
@@ -133,6 +135,7 @@
clocks = <&scpi_dvfs 1>;
cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
capacity-dmips-mhz = <485>;
+ dynamic-power-coefficient = <140>;
};
A53_1: cpu@101 {
@@ -150,6 +153,7 @@
clocks = <&scpi_dvfs 1>;
cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
capacity-dmips-mhz = <485>;
+ dynamic-power-coefficient = <140>;
};
A53_2: cpu@102 {
@@ -167,6 +171,7 @@
clocks = <&scpi_dvfs 1>;
cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
capacity-dmips-mhz = <485>;
+ dynamic-power-coefficient = <140>;
};
A53_3: cpu@103 {
@@ -184,6 +189,7 @@
clocks = <&scpi_dvfs 1>;
cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
capacity-dmips-mhz = <485>;
+ dynamic-power-coefficient = <140>;
};
A72_L2: l2-cache0 {
diff --git a/arch/arm64/boot/dts/arm/juno.dts b/arch/arm64/boot/dts/arm/juno.dts
index 1fb5c5a..e3069e2 100644
--- a/arch/arm64/boot/dts/arm/juno.dts
+++ b/arch/arm64/boot/dts/arm/juno.dts
@@ -98,6 +98,7 @@
clocks = <&scpi_dvfs 0>;
cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
capacity-dmips-mhz = <1024>;
+ dynamic-power-coefficient = <530>;
};
A57_1: cpu@1 {
@@ -115,6 +116,7 @@
clocks = <&scpi_dvfs 0>;
cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
capacity-dmips-mhz = <1024>;
+ dynamic-power-coefficient = <530>;
};
A53_0: cpu@100 {
@@ -132,6 +134,7 @@
clocks = <&scpi_dvfs 1>;
cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
capacity-dmips-mhz = <578>;
+ dynamic-power-coefficient = <140>;
};
A53_1: cpu@101 {
@@ -149,6 +152,7 @@
clocks = <&scpi_dvfs 1>;
cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
capacity-dmips-mhz = <578>;
+ dynamic-power-coefficient = <140>;
};
A53_2: cpu@102 {
@@ -166,6 +170,7 @@
clocks = <&scpi_dvfs 1>;
cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
capacity-dmips-mhz = <578>;
+ dynamic-power-coefficient = <140>;
};
A53_3: cpu@103 {
@@ -183,6 +188,7 @@
clocks = <&scpi_dvfs 1>;
cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
capacity-dmips-mhz = <578>;
+ dynamic-power-coefficient = <140>;
};
A57_L2: l2-cache0 {
diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index 1a4f8b6..4120a23 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -19,9 +19,13 @@
CONFIG_CGROUP_PIDS=y
CONFIG_CGROUP_HUGETLB=y
CONFIG_CPUSETS=y
+CONFIG_CGROUPS=y
+CONFIG_FAIR_GROUP_SCHED=y
+CONFIG_CGROUP_SCHED=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_CGROUP_PERF=y
+CONFIG_CGROUP_FREEZER=y
CONFIG_USER_NS=y
CONFIG_SCHED_AUTOGROUP=y
CONFIG_BLK_DEV_INITRD=y
@@ -101,13 +105,16 @@
CONFIG_COMPAT=y
CONFIG_HIBERNATION=y
CONFIG_WQ_POWER_EFFICIENT_DEFAULT=y
+CONFIG_ENERGY_MODEL=y
+CONFIG_SCHED_TUNE=y
CONFIG_ARM_CPUIDLE=y
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_STAT=y
-CONFIG_CPU_FREQ_GOV_POWERSAVE=m
+CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL=y
+CONFIG_CPU_FREQ_GOV_POWERSAVE=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
-CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m
+CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y
CONFIG_CPUFREQ_DT=y
CONFIG_ACPI_CPPC_CPUFREQ=m
@@ -673,6 +680,7 @@
CONFIG_CUSE=m
CONFIG_OVERLAY_FS=m
CONFIG_VFAT_FS=y
+CONFIG_TMPFS=y
CONFIG_HUGETLBFS=y
CONFIG_CONFIGFS_FS=y
CONFIG_EFIVAR_FS=y
diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
new file mode 100644
index 0000000..c75699c
--- /dev/null
+++ b/arch/arm64/configs/gki_defconfig
@@ -0,0 +1,520 @@
+CONFIG_AUDIT=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_PREEMPT=y
+CONFIG_IRQ_TIME_ACCOUNTING=y
+CONFIG_TASKSTATS=y
+CONFIG_TASK_XACCT=y
+CONFIG_TASK_IO_ACCOUNTING=y
+CONFIG_PSI=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_IKHEADERS=y
+CONFIG_CGROUPS=y
+CONFIG_MEMCG=y
+CONFIG_MEMCG_SWAP=y
+CONFIG_BLK_CGROUP=y
+CONFIG_CGROUP_SCHED=y
+# CONFIG_FAIR_GROUP_SCHED is not set
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CPUSETS=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_CGROUP_BPF=y
+CONFIG_NAMESPACES=y
+# CONFIG_PID_NS is not set
+CONFIG_SCHED_TUNE=y
+CONFIG_BLK_DEV_INITRD=y
+# CONFIG_RD_BZIP2 is not set
+# CONFIG_RD_LZMA is not set
+# CONFIG_RD_XZ is not set
+# CONFIG_RD_LZO is not set
+# CONFIG_SYSFS_SYSCALL is not set
+# CONFIG_FHANDLE is not set
+CONFIG_KALLSYMS_ALL=y
+CONFIG_BPF_SYSCALL=y
+CONFIG_BPF_JIT_ALWAYS_ON=y
+# CONFIG_RSEQ is not set
+CONFIG_EMBEDDED=y
+# CONFIG_COMPAT_BRK is not set
+# CONFIG_SLAB_MERGE_DEFAULT is not set
+CONFIG_SLAB_FREELIST_RANDOM=y
+CONFIG_SLAB_FREELIST_HARDENED=y
+CONFIG_PROFILING=y
+# CONFIG_ZONE_DMA32 is not set
+CONFIG_ARCH_HISI=y
+CONFIG_ARCH_QCOM=y
+CONFIG_PCI=y
+CONFIG_PCI_HOST_GENERIC=y
+CONFIG_PCIE_KIRIN=y
+CONFIG_SCHED_MC=y
+CONFIG_NR_CPUS=32
+CONFIG_SECCOMP=y
+CONFIG_PARAVIRT=y
+CONFIG_ARMV8_DEPRECATED=y
+CONFIG_SWP_EMULATION=y
+CONFIG_CP15_BARRIER_EMULATION=y
+CONFIG_SETEND_EMULATION=y
+CONFIG_ARM64_SW_TTBR0_PAN=y
+CONFIG_RANDOMIZE_BASE=y
+CONFIG_CMDLINE="cgroup_disable=pressure"
+CONFIG_CMDLINE_EXTEND=y
+# CONFIG_DMI is not set
+CONFIG_COMPAT=y
+CONFIG_PM_WAKELOCKS=y
+CONFIG_PM_WAKELOCKS_LIMIT=0
+# CONFIG_PM_WAKELOCKS_GC is not set
+CONFIG_ENERGY_MODEL=y
+CONFIG_CPU_IDLE=y
+CONFIG_ARM_CPUIDLE=y
+CONFIG_CPU_FREQ=y
+CONFIG_CPU_FREQ_STAT=y
+CONFIG_CPU_FREQ_TIMES=y
+CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL=y
+CONFIG_CPU_FREQ_GOV_POWERSAVE=y
+CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
+CONFIG_ARM_SCPI_CPUFREQ=y
+CONFIG_ARM_SCMI_CPUFREQ=y
+CONFIG_ARM_SCMI_PROTOCOL=y
+# CONFIG_ARM_SCMI_POWER_DOMAIN is not set
+CONFIG_ARM_SCPI_PROTOCOL=y
+# CONFIG_ARM_SCPI_POWER_DOMAIN is not set
+# CONFIG_EFI_ARMSTUB_DTB_LOADER is not set
+CONFIG_CRYPTO_SHA2_ARM64_CE=y
+CONFIG_CRYPTO_AES_ARM64_CE_BLK=y
+CONFIG_JUMP_LABEL=y
+CONFIG_LTO_CLANG=y
+CONFIG_CFI_CLANG=y
+CONFIG_SHADOW_CALL_STACK=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODVERSIONS=y
+CONFIG_BLK_INLINE_ENCRYPTION=y
+CONFIG_BLK_INLINE_ENCRYPTION_FALLBACK=y
+CONFIG_GKI_HACKS_TO_FIX=y
+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
+CONFIG_BINFMT_MISC=y
+CONFIG_CLEANCACHE=y
+CONFIG_CMA=y
+CONFIG_CMA_AREAS=16
+CONFIG_ZSMALLOC=y
+CONFIG_MM_EVENT_STAT=y
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_XFRM_USER=y
+CONFIG_XFRM_INTERFACE=y
+CONFIG_XFRM_MIGRATE=y
+CONFIG_XFRM_STATISTICS=y
+CONFIG_NET_KEY=y
+CONFIG_XDP_SOCKETS=y
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_ADVANCED_ROUTER=y
+CONFIG_IP_MULTIPLE_TABLES=y
+CONFIG_NET_IPIP=y
+CONFIG_NET_IPGRE_DEMUX=y
+CONFIG_NET_IPGRE=y
+CONFIG_NET_IPVTI=y
+CONFIG_INET_ESP=y
+CONFIG_INET_UDP_DIAG=y
+CONFIG_INET_DIAG_DESTROY=y
+CONFIG_IPV6_ROUTER_PREF=y
+CONFIG_IPV6_ROUTE_INFO=y
+CONFIG_IPV6_OPTIMISTIC_DAD=y
+CONFIG_INET6_ESP=y
+CONFIG_INET6_IPCOMP=y
+CONFIG_IPV6_MIP6=y
+CONFIG_IPV6_VTI=y
+CONFIG_IPV6_GRE=y
+CONFIG_IPV6_MULTIPLE_TABLES=y
+CONFIG_IPV6_SUBTREES=y
+CONFIG_NETFILTER=y
+CONFIG_NF_CONNTRACK=y
+CONFIG_NF_CONNTRACK_SECMARK=y
+CONFIG_NF_CONNTRACK_EVENTS=y
+CONFIG_NF_CONNTRACK_AMANDA=y
+CONFIG_NF_CONNTRACK_FTP=y
+CONFIG_NF_CONNTRACK_H323=y
+CONFIG_NF_CONNTRACK_IRC=y
+CONFIG_NF_CONNTRACK_NETBIOS_NS=y
+CONFIG_NF_CONNTRACK_PPTP=y
+CONFIG_NF_CONNTRACK_SANE=y
+CONFIG_NF_CONNTRACK_TFTP=y
+CONFIG_NF_CT_NETLINK=y
+CONFIG_NETFILTER_XT_TARGET_CLASSIFY=y
+CONFIG_NETFILTER_XT_TARGET_CONNMARK=y
+CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=y
+CONFIG_NETFILTER_XT_TARGET_CT=y
+CONFIG_NETFILTER_XT_TARGET_IDLETIMER=y
+CONFIG_NETFILTER_XT_TARGET_MARK=y
+CONFIG_NETFILTER_XT_TARGET_NFLOG=y
+CONFIG_NETFILTER_XT_TARGET_NFQUEUE=y
+CONFIG_NETFILTER_XT_TARGET_TPROXY=y
+CONFIG_NETFILTER_XT_TARGET_TRACE=y
+CONFIG_NETFILTER_XT_TARGET_SECMARK=y
+CONFIG_NETFILTER_XT_TARGET_TCPMSS=y
+CONFIG_NETFILTER_XT_MATCH_BPF=y
+CONFIG_NETFILTER_XT_MATCH_COMMENT=y
+CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=y
+CONFIG_NETFILTER_XT_MATCH_CONNMARK=y
+CONFIG_NETFILTER_XT_MATCH_CONNTRACK=y
+CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=y
+CONFIG_NETFILTER_XT_MATCH_HELPER=y
+CONFIG_NETFILTER_XT_MATCH_IPRANGE=y
+CONFIG_NETFILTER_XT_MATCH_LENGTH=y
+CONFIG_NETFILTER_XT_MATCH_LIMIT=y
+CONFIG_NETFILTER_XT_MATCH_MAC=y
+CONFIG_NETFILTER_XT_MATCH_MARK=y
+CONFIG_NETFILTER_XT_MATCH_OWNER=y
+CONFIG_NETFILTER_XT_MATCH_POLICY=y
+CONFIG_NETFILTER_XT_MATCH_PKTTYPE=y
+CONFIG_NETFILTER_XT_MATCH_QUOTA=y
+CONFIG_NETFILTER_XT_MATCH_QUOTA2=y
+CONFIG_NETFILTER_XT_MATCH_QUOTA2_LOG=y
+CONFIG_NETFILTER_XT_MATCH_SOCKET=y
+CONFIG_NETFILTER_XT_MATCH_STATE=y
+CONFIG_NETFILTER_XT_MATCH_STATISTIC=y
+CONFIG_NETFILTER_XT_MATCH_STRING=y
+CONFIG_NETFILTER_XT_MATCH_TIME=y
+CONFIG_NETFILTER_XT_MATCH_U32=y
+CONFIG_IP_NF_IPTABLES=y
+CONFIG_IP_NF_MATCH_ECN=y
+CONFIG_IP_NF_MATCH_TTL=y
+CONFIG_IP_NF_FILTER=y
+CONFIG_IP_NF_TARGET_REJECT=y
+CONFIG_IP_NF_NAT=y
+CONFIG_IP_NF_TARGET_MASQUERADE=y
+CONFIG_IP_NF_TARGET_NETMAP=y
+CONFIG_IP_NF_TARGET_REDIRECT=y
+CONFIG_IP_NF_MANGLE=y
+CONFIG_IP_NF_RAW=y
+CONFIG_IP_NF_SECURITY=y
+CONFIG_IP_NF_ARPTABLES=y
+CONFIG_IP_NF_ARPFILTER=y
+CONFIG_IP_NF_ARP_MANGLE=y
+CONFIG_IP6_NF_IPTABLES=y
+CONFIG_IP6_NF_MATCH_RPFILTER=y
+CONFIG_IP6_NF_FILTER=y
+CONFIG_IP6_NF_TARGET_REJECT=y
+CONFIG_IP6_NF_MANGLE=y
+CONFIG_IP6_NF_RAW=y
+CONFIG_TIPC=y
+CONFIG_L2TP=y
+CONFIG_BRIDGE=y
+CONFIG_NET_SCHED=y
+CONFIG_NET_SCH_HTB=y
+CONFIG_NET_SCH_INGRESS=y
+CONFIG_NET_CLS_U32=y
+CONFIG_NET_CLS_BPF=y
+CONFIG_NET_EMATCH=y
+CONFIG_NET_EMATCH_U32=y
+CONFIG_NET_CLS_ACT=y
+CONFIG_BPF_JIT=y
+CONFIG_BT=y
+CONFIG_CFG80211=y
+# CONFIG_CFG80211_DEFAULT_PS is not set
+# CONFIG_CFG80211_CRDA_SUPPORT is not set
+CONFIG_MAC80211=y
+CONFIG_RFKILL=y
+# CONFIG_UEVENT_HELPER is not set
+CONFIG_FW_LOADER_USER_HELPER=y
+CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y
+# CONFIG_FW_CACHE is not set
+# CONFIG_ALLOW_DEV_COREDUMP is not set
+CONFIG_DMA_CMA=y
+CONFIG_GNSS=y
+CONFIG_ZRAM=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_LOOP_MIN_COUNT=16
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_SIZE=8192
+CONFIG_UID_SYS_STATS=y
+CONFIG_SCSI=y
+# CONFIG_SCSI_PROC_FS is not set
+CONFIG_BLK_DEV_SD=y
+CONFIG_CHR_DEV_SG=y
+CONFIG_SCSI_UFSHCD=m
+CONFIG_SCSI_UFSHCD_PLATFORM=m
+CONFIG_SCSI_UFS_CRYPTO=y
+CONFIG_MD=y
+CONFIG_BLK_DEV_DM=y
+CONFIG_DM_CRYPT=y
+CONFIG_DM_DEFAULT_KEY=y
+CONFIG_DM_SNAPSHOT=y
+CONFIG_DM_UEVENT=y
+CONFIG_DM_VERITY=y
+CONFIG_DM_VERITY_AVB=y
+CONFIG_DM_VERITY_FEC=y
+CONFIG_DM_BOW=y
+CONFIG_NETDEVICES=y
+CONFIG_DUMMY=y
+CONFIG_WIREGUARD=y
+CONFIG_TUN=y
+CONFIG_VETH=y
+# CONFIG_ETHERNET is not set
+CONFIG_PHYLIB=y
+CONFIG_PPP=y
+CONFIG_PPP_BSDCOMP=y
+CONFIG_PPP_DEFLATE=y
+CONFIG_PPP_MPPE=y
+CONFIG_PPTP=y
+CONFIG_PPPOL2TP=y
+CONFIG_USB_RTL8152=y
+CONFIG_USB_USBNET=y
+# CONFIG_USB_NET_AX8817X is not set
+# CONFIG_USB_NET_AX88179_178A is not set
+# CONFIG_USB_NET_CDCETHER is not set
+# CONFIG_USB_NET_CDC_NCM is not set
+# CONFIG_USB_NET_NET1080 is not set
+# CONFIG_USB_NET_CDC_SUBSET is not set
+# CONFIG_USB_NET_ZAURUS is not set
+# CONFIG_WLAN_VENDOR_ADMTEK is not set
+# CONFIG_WLAN_VENDOR_ATH is not set
+# CONFIG_WLAN_VENDOR_ATMEL is not set
+# CONFIG_WLAN_VENDOR_BROADCOM is not set
+# CONFIG_WLAN_VENDOR_CISCO is not set
+# CONFIG_WLAN_VENDOR_INTEL is not set
+# CONFIG_WLAN_VENDOR_INTERSIL is not set
+# CONFIG_WLAN_VENDOR_MARVELL is not set
+# CONFIG_WLAN_VENDOR_MEDIATEK is not set
+# CONFIG_WLAN_VENDOR_RALINK is not set
+# CONFIG_WLAN_VENDOR_REALTEK is not set
+# CONFIG_WLAN_VENDOR_RSI is not set
+# CONFIG_WLAN_VENDOR_ST is not set
+# CONFIG_WLAN_VENDOR_TI is not set
+# CONFIG_WLAN_VENDOR_ZYDAS is not set
+# CONFIG_WLAN_VENDOR_QUANTENNA is not set
+CONFIG_INPUT_FF_MEMLESS=y
+CONFIG_INPUT_EVDEV=y
+CONFIG_KEYBOARD_GPIO=y
+# CONFIG_INPUT_MOUSE is not set
+CONFIG_INPUT_JOYSTICK=y
+CONFIG_JOYSTICK_XPAD=y
+CONFIG_INPUT_MISC=y
+CONFIG_INPUT_UINPUT=y
+# CONFIG_VT is not set
+# CONFIG_LEGACY_PTYS is not set
+# CONFIG_DEVMEM is not set
+CONFIG_SERIAL_8250=y
+# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
+CONFIG_SERIAL_8250_CONSOLE=y
+# CONFIG_SERIAL_8250_EXAR is not set
+CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
+CONFIG_SERIAL_MSM_GENI_EARLY_CONSOLE=y
+CONFIG_SERIAL_DEV_BUS=y
+CONFIG_HW_RANDOM=y
+# CONFIG_HW_RANDOM_CAVIUM is not set
+# CONFIG_DEVPORT is not set
+# CONFIG_I2C_COMPAT is not set
+CONFIG_I2C_CHARDEV=y
+# CONFIG_I2C_HELPER_AUTO is not set
+CONFIG_SPI=y
+CONFIG_SPMI=y
+# CONFIG_SPMI_MSM_PMIC_ARB is not set
+CONFIG_PINCTRL_AMD=y
+CONFIG_GPIO_SYSFS=y
+CONFIG_POWER_AVS=y
+CONFIG_POWER_RESET_HISI=y
+CONFIG_THERMAL=y
+CONFIG_THERMAL_STATISTICS=y
+CONFIG_THERMAL_WRITABLE_TRIPS=y
+CONFIG_THERMAL_GOV_USER_SPACE=y
+CONFIG_CPU_THERMAL=y
+CONFIG_DEVFREQ_THERMAL=y
+CONFIG_THERMAL_EMULATION=y
+CONFIG_WATCHDOG=y
+CONFIG_WATCHDOG_CORE=y
+CONFIG_MFD_ACT8945A=y
+CONFIG_MFD_SYSCON=y
+CONFIG_REGULATOR=y
+CONFIG_REGULATOR_FIXED_VOLTAGE=y
+CONFIG_REGULATOR_PROXY_CONSUMER=y
+CONFIG_MEDIA_SUPPORT=y
+CONFIG_MEDIA_CAMERA_SUPPORT=y
+CONFIG_MEDIA_CONTROLLER=y
+CONFIG_VIDEO_V4L2_SUBDEV_API=y
+# CONFIG_VGA_ARB is not set
+CONFIG_DRM=y
+# CONFIG_DRM_FBDEV_EMULATION is not set
+CONFIG_BACKLIGHT_LCD_SUPPORT=y
+# CONFIG_LCD_CLASS_DEVICE is not set
+CONFIG_BACKLIGHT_CLASS_DEVICE=y
+# CONFIG_BACKLIGHT_GENERIC is not set
+CONFIG_SOUND=y
+CONFIG_SND=y
+CONFIG_SND_HRTIMER=y
+CONFIG_SND_DYNAMIC_MINORS=y
+# CONFIG_SND_SUPPORT_OLD_API is not set
+# CONFIG_SND_DRIVERS is not set
+CONFIG_SND_USB_AUDIO=y
+CONFIG_SND_SOC=y
+CONFIG_HIDRAW=y
+CONFIG_UHID=y
+CONFIG_HID_APPLE=y
+CONFIG_HID_ELECOM=y
+CONFIG_HID_MAGICMOUSE=y
+CONFIG_HID_MICROSOFT=y
+CONFIG_HID_MULTITOUCH=y
+CONFIG_HID_NINTENDO=y
+CONFIG_HID_SONY=y
+CONFIG_HID_STEAM=y
+CONFIG_USB_HIDDEV=y
+CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
+CONFIG_USB_OTG=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_VBUS_DRAW=500
+CONFIG_USB_CONFIGFS=y
+CONFIG_USB_CONFIGFS_UEVENT=y
+CONFIG_USB_CONFIGFS_MASS_STORAGE=y
+CONFIG_USB_CONFIGFS_F_FS=y
+CONFIG_USB_CONFIGFS_F_ACC=y
+CONFIG_USB_CONFIGFS_F_AUDIO_SRC=y
+CONFIG_USB_CONFIGFS_F_MIDI=y
+CONFIG_TYPEC=y
+CONFIG_MMC=y
+# CONFIG_PWRSEQ_EMMC is not set
+# CONFIG_PWRSEQ_SIMPLE is not set
+CONFIG_MMC_CRYPTO=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_PLTFM=y
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_TRANSIENT=y
+CONFIG_EDAC=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_PL030=y
+CONFIG_RTC_DRV_PL031=y
+CONFIG_DMADEVICES=y
+CONFIG_UIO=y
+CONFIG_STAGING=y
+CONFIG_ASHMEM=y
+CONFIG_ANDROID_VSOC=y
+CONFIG_COMMON_CLK_SCPI=y
+# CONFIG_COMMON_CLK_XGENE is not set
+CONFIG_HWSPINLOCK=y
+CONFIG_MAILBOX=y
+CONFIG_IOMMU_IO_PGTABLE_FAST=y
+CONFIG_ARM_SMMU=m
+CONFIG_REMOTEPROC=y
+CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND=y
+CONFIG_DEVFREQ_GOV_PERFORMANCE=y
+CONFIG_DEVFREQ_GOV_POWERSAVE=y
+CONFIG_DEVFREQ_GOV_USERSPACE=y
+CONFIG_DEVFREQ_GOV_PASSIVE=y
+CONFIG_IIO=y
+CONFIG_PWM=y
+CONFIG_QCOM_PDC=y
+CONFIG_GENERIC_PHY=y
+CONFIG_RAS=y
+CONFIG_ANDROID=y
+CONFIG_ANDROID_BINDER_IPC=y
+CONFIG_ANDROID_BINDERFS=y
+CONFIG_LIBNVDIMM=y
+# CONFIG_ND_BLK is not set
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+CONFIG_F2FS_FS=y
+CONFIG_F2FS_FS_SECURITY=y
+CONFIG_FS_ENCRYPTION=y
+CONFIG_FS_ENCRYPTION_INLINE_CRYPT=y
+CONFIG_FS_VERITY=y
+CONFIG_FS_VERITY_BUILTIN_SIGNATURES=y
+# CONFIG_DNOTIFY is not set
+CONFIG_QUOTA=y
+CONFIG_QFMT_V2=y
+CONFIG_FUSE_FS=y
+CONFIG_OVERLAY_FS=y
+CONFIG_MSDOS_FS=y
+CONFIG_VFAT_FS=y
+CONFIG_TMPFS=y
+CONFIG_TMPFS_POSIX_ACL=y
+# CONFIG_EFIVAR_FS is not set
+CONFIG_PSTORE=y
+CONFIG_PSTORE_CONSOLE=y
+CONFIG_PSTORE_RAM=y
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_CODEPAGE_737=y
+CONFIG_NLS_CODEPAGE_775=y
+CONFIG_NLS_CODEPAGE_850=y
+CONFIG_NLS_CODEPAGE_852=y
+CONFIG_NLS_CODEPAGE_855=y
+CONFIG_NLS_CODEPAGE_857=y
+CONFIG_NLS_CODEPAGE_860=y
+CONFIG_NLS_CODEPAGE_861=y
+CONFIG_NLS_CODEPAGE_862=y
+CONFIG_NLS_CODEPAGE_863=y
+CONFIG_NLS_CODEPAGE_864=y
+CONFIG_NLS_CODEPAGE_865=y
+CONFIG_NLS_CODEPAGE_866=y
+CONFIG_NLS_CODEPAGE_869=y
+CONFIG_NLS_CODEPAGE_936=y
+CONFIG_NLS_CODEPAGE_950=y
+CONFIG_NLS_CODEPAGE_932=y
+CONFIG_NLS_CODEPAGE_949=y
+CONFIG_NLS_CODEPAGE_874=y
+CONFIG_NLS_ISO8859_8=y
+CONFIG_NLS_CODEPAGE_1250=y
+CONFIG_NLS_CODEPAGE_1251=y
+CONFIG_NLS_ASCII=y
+CONFIG_NLS_ISO8859_1=y
+CONFIG_NLS_ISO8859_2=y
+CONFIG_NLS_ISO8859_3=y
+CONFIG_NLS_ISO8859_4=y
+CONFIG_NLS_ISO8859_5=y
+CONFIG_NLS_ISO8859_6=y
+CONFIG_NLS_ISO8859_7=y
+CONFIG_NLS_ISO8859_9=y
+CONFIG_NLS_ISO8859_13=y
+CONFIG_NLS_ISO8859_14=y
+CONFIG_NLS_ISO8859_15=y
+CONFIG_NLS_KOI8_R=y
+CONFIG_NLS_KOI8_U=y
+CONFIG_NLS_MAC_ROMAN=y
+CONFIG_NLS_MAC_CELTIC=y
+CONFIG_NLS_MAC_CENTEURO=y
+CONFIG_NLS_MAC_CROATIAN=y
+CONFIG_NLS_MAC_CYRILLIC=y
+CONFIG_NLS_MAC_GAELIC=y
+CONFIG_NLS_MAC_GREEK=y
+CONFIG_NLS_MAC_ICELAND=y
+CONFIG_NLS_MAC_INUIT=y
+CONFIG_NLS_MAC_ROMANIAN=y
+CONFIG_NLS_MAC_TURKISH=y
+CONFIG_NLS_UTF8=y
+CONFIG_UNICODE=y
+CONFIG_SECURITY=y
+CONFIG_SECURITYFS=y
+CONFIG_SECURITY_NETWORK=y
+CONFIG_HARDENED_USERCOPY=y
+CONFIG_FORTIFY_SOURCE=y
+CONFIG_STATIC_USERMODEHELPER=y
+CONFIG_STATIC_USERMODEHELPER_PATH=""
+CONFIG_SECURITY_SELINUX=y
+CONFIG_INIT_STACK_ALL_ZERO=y
+CONFIG_INIT_ON_ALLOC_DEFAULT_ON=y
+CONFIG_CRYPTO_ADIANTUM=y
+CONFIG_CRYPTO_LZ4=y
+CONFIG_CRYPTO_ZSTD=y
+CONFIG_CRYPTO_ANSI_CPRNG=y
+CONFIG_CRC_CCITT=y
+CONFIG_CRC8=y
+CONFIG_XZ_DEC=y
+CONFIG_PRINTK_TIME=y
+CONFIG_DEBUG_INFO=y
+CONFIG_DEBUG_INFO_DWARF4=y
+# CONFIG_ENABLE_MUST_CHECK is not set
+# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_STACK_USAGE=y
+CONFIG_DEBUG_MEMORY_INIT=y
+CONFIG_SOFTLOCKUP_DETECTOR=y
+# CONFIG_DETECT_HUNG_TASK is not set
+CONFIG_PANIC_TIMEOUT=5
+CONFIG_SCHEDSTATS=y
+# CONFIG_DEBUG_PREEMPT is not set
+CONFIG_DEBUG_LIST=y
diff --git a/arch/arm64/crypto/.gitignore b/arch/arm64/crypto/.gitignore
index 879df87..e403b13 100644
--- a/arch/arm64/crypto/.gitignore
+++ b/arch/arm64/crypto/.gitignore
@@ -1,2 +1,3 @@
sha256-core.S
sha512-core.S
+poly1305-core.S
diff --git a/arch/arm64/crypto/Kconfig b/arch/arm64/crypto/Kconfig
index d51944f..273d727 100644
--- a/arch/arm64/crypto/Kconfig
+++ b/arch/arm64/crypto/Kconfig
@@ -106,10 +106,17 @@
select CRYPTO_SIMD
config CRYPTO_CHACHA20_NEON
- tristate "NEON accelerated ChaCha20 symmetric cipher"
+ tristate "ChaCha20, XChaCha20, and XChaCha12 stream ciphers using NEON instructions"
depends on KERNEL_MODE_NEON
select CRYPTO_BLKCIPHER
- select CRYPTO_CHACHA20
+ select CRYPTO_LIB_CHACHA_GENERIC
+ select CRYPTO_ARCH_HAVE_LIB_CHACHA
+
+config CRYPTO_POLY1305_NEON
+ tristate "Poly1305 hash function using scalar or NEON instructions"
+ depends on KERNEL_MODE_NEON
+ select CRYPTO_HASH
+ select CRYPTO_ARCH_HAVE_LIB_POLY1305
config CRYPTO_AES_ARM64_BS
tristate "AES in ECB/CBC/CTR/XTS modes using bit-sliced NEON algorithm"
diff --git a/arch/arm64/crypto/Makefile b/arch/arm64/crypto/Makefile
index 7bc4bda..dbb74e1 100644
--- a/arch/arm64/crypto/Makefile
+++ b/arch/arm64/crypto/Makefile
@@ -53,8 +53,12 @@
obj-$(CONFIG_CRYPTO_SHA512_ARM64) += sha512-arm64.o
sha512-arm64-y := sha512-glue.o sha512-core.o
-obj-$(CONFIG_CRYPTO_CHACHA20_NEON) += chacha20-neon.o
-chacha20-neon-y := chacha20-neon-core.o chacha20-neon-glue.o
+obj-$(CONFIG_CRYPTO_CHACHA20_NEON) += chacha-neon.o
+chacha-neon-y := chacha-neon-core.o chacha-neon-glue.o
+
+obj-$(CONFIG_CRYPTO_POLY1305_NEON) += poly1305-neon.o
+poly1305-neon-y := poly1305-core.o poly1305-glue.o
+AFLAGS_poly1305-core.o += -Dpoly1305_init=poly1305_init_arm64
obj-$(CONFIG_CRYPTO_AES_ARM64) += aes-arm64.o
aes-arm64-y := aes-cipher-core.o aes-cipher-glue.o
@@ -71,6 +75,9 @@
quiet_cmd_perlasm = PERLASM $@
cmd_perlasm = $(PERL) $(<) void $(@)
+$(src)/poly1305-core.S_shipped: $(src)/poly1305-armv8.pl
+ $(call cmd,perlasm)
+
$(src)/sha256-core.S_shipped: $(src)/sha512-armv8.pl
$(call cmd,perlasm)
@@ -78,4 +85,4 @@
$(call cmd,perlasm)
endif
-targets += sha256-core.S sha512-core.S
+targets += poly1305-core.S sha256-core.S sha512-core.S
diff --git a/arch/arm64/crypto/chacha-neon-core.S b/arch/arm64/crypto/chacha-neon-core.S
new file mode 100644
index 0000000..706c4e1
--- /dev/null
+++ b/arch/arm64/crypto/chacha-neon-core.S
@@ -0,0 +1,860 @@
+/*
+ * ChaCha/XChaCha NEON helper functions
+ *
+ * Copyright (C) 2016-2018 Linaro, Ltd. <ard.biesheuvel@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Originally based on:
+ * ChaCha20 256-bit cipher algorithm, RFC7539, x64 SSSE3 functions
+ *
+ * Copyright (C) 2015 Martin Willi
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+#include <asm/cache.h>
+
+ .text
+ .align 6
+
+/*
+ * chacha_permute - permute one block
+ *
+ * Permute one 64-byte block where the state matrix is stored in the four NEON
+ * registers v0-v3. It performs matrix operations on four words in parallel,
+ * but requires shuffling to rearrange the words after each round.
+ *
+ * The round count is given in w3.
+ *
+ * Clobbers: w3, x10, v4, v12
+ */
+chacha_permute:
+
+ adr_l x10, ROT8
+ ld1 {v12.4s}, [x10]
+
+.Ldoubleround:
+ // x0 += x1, x3 = rotl32(x3 ^ x0, 16)
+ add v0.4s, v0.4s, v1.4s
+ eor v3.16b, v3.16b, v0.16b
+ rev32 v3.8h, v3.8h
+
+ // x2 += x3, x1 = rotl32(x1 ^ x2, 12)
+ add v2.4s, v2.4s, v3.4s
+ eor v4.16b, v1.16b, v2.16b
+ shl v1.4s, v4.4s, #12
+ sri v1.4s, v4.4s, #20
+
+ // x0 += x1, x3 = rotl32(x3 ^ x0, 8)
+ add v0.4s, v0.4s, v1.4s
+ eor v3.16b, v3.16b, v0.16b
+ tbl v3.16b, {v3.16b}, v12.16b
+
+ // x2 += x3, x1 = rotl32(x1 ^ x2, 7)
+ add v2.4s, v2.4s, v3.4s
+ eor v4.16b, v1.16b, v2.16b
+ shl v1.4s, v4.4s, #7
+ sri v1.4s, v4.4s, #25
+
+ // x1 = shuffle32(x1, MASK(0, 3, 2, 1))
+ ext v1.16b, v1.16b, v1.16b, #4
+ // x2 = shuffle32(x2, MASK(1, 0, 3, 2))
+ ext v2.16b, v2.16b, v2.16b, #8
+ // x3 = shuffle32(x3, MASK(2, 1, 0, 3))
+ ext v3.16b, v3.16b, v3.16b, #12
+
+ // x0 += x1, x3 = rotl32(x3 ^ x0, 16)
+ add v0.4s, v0.4s, v1.4s
+ eor v3.16b, v3.16b, v0.16b
+ rev32 v3.8h, v3.8h
+
+ // x2 += x3, x1 = rotl32(x1 ^ x2, 12)
+ add v2.4s, v2.4s, v3.4s
+ eor v4.16b, v1.16b, v2.16b
+ shl v1.4s, v4.4s, #12
+ sri v1.4s, v4.4s, #20
+
+ // x0 += x1, x3 = rotl32(x3 ^ x0, 8)
+ add v0.4s, v0.4s, v1.4s
+ eor v3.16b, v3.16b, v0.16b
+ tbl v3.16b, {v3.16b}, v12.16b
+
+ // x2 += x3, x1 = rotl32(x1 ^ x2, 7)
+ add v2.4s, v2.4s, v3.4s
+ eor v4.16b, v1.16b, v2.16b
+ shl v1.4s, v4.4s, #7
+ sri v1.4s, v4.4s, #25
+
+ // x1 = shuffle32(x1, MASK(2, 1, 0, 3))
+ ext v1.16b, v1.16b, v1.16b, #12
+ // x2 = shuffle32(x2, MASK(1, 0, 3, 2))
+ ext v2.16b, v2.16b, v2.16b, #8
+ // x3 = shuffle32(x3, MASK(0, 3, 2, 1))
+ ext v3.16b, v3.16b, v3.16b, #4
+
+ subs w3, w3, #2
+ b.ne .Ldoubleround
+
+ ret
+ENDPROC(chacha_permute)
+
+ENTRY(chacha_block_xor_neon)
+ // x0: Input state matrix, s
+ // x1: 1 data block output, o
+ // x2: 1 data block input, i
+ // w3: nrounds
+
+ stp x29, x30, [sp, #-16]!
+ mov x29, sp
+
+ // x0..3 = s0..3
+ ld1 {v0.4s-v3.4s}, [x0]
+ ld1 {v8.4s-v11.4s}, [x0]
+
+ bl chacha_permute
+
+ ld1 {v4.16b-v7.16b}, [x2]
+
+ // o0 = i0 ^ (x0 + s0)
+ add v0.4s, v0.4s, v8.4s
+ eor v0.16b, v0.16b, v4.16b
+
+ // o1 = i1 ^ (x1 + s1)
+ add v1.4s, v1.4s, v9.4s
+ eor v1.16b, v1.16b, v5.16b
+
+ // o2 = i2 ^ (x2 + s2)
+ add v2.4s, v2.4s, v10.4s
+ eor v2.16b, v2.16b, v6.16b
+
+ // o3 = i3 ^ (x3 + s3)
+ add v3.4s, v3.4s, v11.4s
+ eor v3.16b, v3.16b, v7.16b
+
+ st1 {v0.16b-v3.16b}, [x1]
+
+ ldp x29, x30, [sp], #16
+ ret
+ENDPROC(chacha_block_xor_neon)
+
+ENTRY(hchacha_block_neon)
+ // x0: Input state matrix, s
+ // x1: output (8 32-bit words)
+ // w2: nrounds
+
+ stp x29, x30, [sp, #-16]!
+ mov x29, sp
+
+ ld1 {v0.4s-v3.4s}, [x0]
+
+ mov w3, w2
+ bl chacha_permute
+
+ st1 {v0.4s}, [x1], #16
+ st1 {v3.4s}, [x1]
+
+ ldp x29, x30, [sp], #16
+ ret
+ENDPROC(hchacha_block_neon)
+
+ a0 .req w12
+ a1 .req w13
+ a2 .req w14
+ a3 .req w15
+ a4 .req w16
+ a5 .req w17
+ a6 .req w19
+ a7 .req w20
+ a8 .req w21
+ a9 .req w22
+ a10 .req w23
+ a11 .req w24
+ a12 .req w25
+ a13 .req w26
+ a14 .req w27
+ a15 .req w28
+
+ .align 6
+ENTRY(chacha_4block_xor_neon)
+ frame_push 10
+
+ // x0: Input state matrix, s
+ // x1: 4 data blocks output, o
+ // x2: 4 data blocks input, i
+ // w3: nrounds
+ // x4: byte count
+
+ adr_l x10, .Lpermute
+ and x5, x4, #63
+ add x10, x10, x5
+ add x11, x10, #64
+
+ //
+ // This function encrypts four consecutive ChaCha blocks by loading
+ // the state matrix in NEON registers four times. The algorithm performs
+ // each operation on the corresponding word of each state matrix, hence
+ // requires no word shuffling. For final XORing step we transpose the
+ // matrix by interleaving 32- and then 64-bit words, which allows us to
+ // do XOR in NEON registers.
+ //
+ // At the same time, a fifth block is encrypted in parallel using
+ // scalar registers
+ //
+ adr_l x9, CTRINC // ... and ROT8
+ ld1 {v30.4s-v31.4s}, [x9]
+
+ // x0..15[0-3] = s0..3[0..3]
+ add x8, x0, #16
+ ld4r { v0.4s- v3.4s}, [x0]
+ ld4r { v4.4s- v7.4s}, [x8], #16
+ ld4r { v8.4s-v11.4s}, [x8], #16
+ ld4r {v12.4s-v15.4s}, [x8]
+
+ mov a0, v0.s[0]
+ mov a1, v1.s[0]
+ mov a2, v2.s[0]
+ mov a3, v3.s[0]
+ mov a4, v4.s[0]
+ mov a5, v5.s[0]
+ mov a6, v6.s[0]
+ mov a7, v7.s[0]
+ mov a8, v8.s[0]
+ mov a9, v9.s[0]
+ mov a10, v10.s[0]
+ mov a11, v11.s[0]
+ mov a12, v12.s[0]
+ mov a13, v13.s[0]
+ mov a14, v14.s[0]
+ mov a15, v15.s[0]
+
+ // x12 += counter values 1-4
+ add v12.4s, v12.4s, v30.4s
+
+.Ldoubleround4:
+ // x0 += x4, x12 = rotl32(x12 ^ x0, 16)
+ // x1 += x5, x13 = rotl32(x13 ^ x1, 16)
+ // x2 += x6, x14 = rotl32(x14 ^ x2, 16)
+ // x3 += x7, x15 = rotl32(x15 ^ x3, 16)
+ add v0.4s, v0.4s, v4.4s
+ add a0, a0, a4
+ add v1.4s, v1.4s, v5.4s
+ add a1, a1, a5
+ add v2.4s, v2.4s, v6.4s
+ add a2, a2, a6
+ add v3.4s, v3.4s, v7.4s
+ add a3, a3, a7
+
+ eor v12.16b, v12.16b, v0.16b
+ eor a12, a12, a0
+ eor v13.16b, v13.16b, v1.16b
+ eor a13, a13, a1
+ eor v14.16b, v14.16b, v2.16b
+ eor a14, a14, a2
+ eor v15.16b, v15.16b, v3.16b
+ eor a15, a15, a3
+
+ rev32 v12.8h, v12.8h
+ ror a12, a12, #16
+ rev32 v13.8h, v13.8h
+ ror a13, a13, #16
+ rev32 v14.8h, v14.8h
+ ror a14, a14, #16
+ rev32 v15.8h, v15.8h
+ ror a15, a15, #16
+
+ // x8 += x12, x4 = rotl32(x4 ^ x8, 12)
+ // x9 += x13, x5 = rotl32(x5 ^ x9, 12)
+ // x10 += x14, x6 = rotl32(x6 ^ x10, 12)
+ // x11 += x15, x7 = rotl32(x7 ^ x11, 12)
+ add v8.4s, v8.4s, v12.4s
+ add a8, a8, a12
+ add v9.4s, v9.4s, v13.4s
+ add a9, a9, a13
+ add v10.4s, v10.4s, v14.4s
+ add a10, a10, a14
+ add v11.4s, v11.4s, v15.4s
+ add a11, a11, a15
+
+ eor v16.16b, v4.16b, v8.16b
+ eor a4, a4, a8
+ eor v17.16b, v5.16b, v9.16b
+ eor a5, a5, a9
+ eor v18.16b, v6.16b, v10.16b
+ eor a6, a6, a10
+ eor v19.16b, v7.16b, v11.16b
+ eor a7, a7, a11
+
+ shl v4.4s, v16.4s, #12
+ shl v5.4s, v17.4s, #12
+ shl v6.4s, v18.4s, #12
+ shl v7.4s, v19.4s, #12
+
+ sri v4.4s, v16.4s, #20
+ ror a4, a4, #20
+ sri v5.4s, v17.4s, #20
+ ror a5, a5, #20
+ sri v6.4s, v18.4s, #20
+ ror a6, a6, #20
+ sri v7.4s, v19.4s, #20
+ ror a7, a7, #20
+
+ // x0 += x4, x12 = rotl32(x12 ^ x0, 8)
+ // x1 += x5, x13 = rotl32(x13 ^ x1, 8)
+ // x2 += x6, x14 = rotl32(x14 ^ x2, 8)
+ // x3 += x7, x15 = rotl32(x15 ^ x3, 8)
+ add v0.4s, v0.4s, v4.4s
+ add a0, a0, a4
+ add v1.4s, v1.4s, v5.4s
+ add a1, a1, a5
+ add v2.4s, v2.4s, v6.4s
+ add a2, a2, a6
+ add v3.4s, v3.4s, v7.4s
+ add a3, a3, a7
+
+ eor v12.16b, v12.16b, v0.16b
+ eor a12, a12, a0
+ eor v13.16b, v13.16b, v1.16b
+ eor a13, a13, a1
+ eor v14.16b, v14.16b, v2.16b
+ eor a14, a14, a2
+ eor v15.16b, v15.16b, v3.16b
+ eor a15, a15, a3
+
+ tbl v12.16b, {v12.16b}, v31.16b
+ ror a12, a12, #24
+ tbl v13.16b, {v13.16b}, v31.16b
+ ror a13, a13, #24
+ tbl v14.16b, {v14.16b}, v31.16b
+ ror a14, a14, #24
+ tbl v15.16b, {v15.16b}, v31.16b
+ ror a15, a15, #24
+
+ // x8 += x12, x4 = rotl32(x4 ^ x8, 7)
+ // x9 += x13, x5 = rotl32(x5 ^ x9, 7)
+ // x10 += x14, x6 = rotl32(x6 ^ x10, 7)
+ // x11 += x15, x7 = rotl32(x7 ^ x11, 7)
+ add v8.4s, v8.4s, v12.4s
+ add a8, a8, a12
+ add v9.4s, v9.4s, v13.4s
+ add a9, a9, a13
+ add v10.4s, v10.4s, v14.4s
+ add a10, a10, a14
+ add v11.4s, v11.4s, v15.4s
+ add a11, a11, a15
+
+ eor v16.16b, v4.16b, v8.16b
+ eor a4, a4, a8
+ eor v17.16b, v5.16b, v9.16b
+ eor a5, a5, a9
+ eor v18.16b, v6.16b, v10.16b
+ eor a6, a6, a10
+ eor v19.16b, v7.16b, v11.16b
+ eor a7, a7, a11
+
+ shl v4.4s, v16.4s, #7
+ shl v5.4s, v17.4s, #7
+ shl v6.4s, v18.4s, #7
+ shl v7.4s, v19.4s, #7
+
+ sri v4.4s, v16.4s, #25
+ ror a4, a4, #25
+ sri v5.4s, v17.4s, #25
+ ror a5, a5, #25
+ sri v6.4s, v18.4s, #25
+ ror a6, a6, #25
+ sri v7.4s, v19.4s, #25
+ ror a7, a7, #25
+
+ // x0 += x5, x15 = rotl32(x15 ^ x0, 16)
+ // x1 += x6, x12 = rotl32(x12 ^ x1, 16)
+ // x2 += x7, x13 = rotl32(x13 ^ x2, 16)
+ // x3 += x4, x14 = rotl32(x14 ^ x3, 16)
+ add v0.4s, v0.4s, v5.4s
+ add a0, a0, a5
+ add v1.4s, v1.4s, v6.4s
+ add a1, a1, a6
+ add v2.4s, v2.4s, v7.4s
+ add a2, a2, a7
+ add v3.4s, v3.4s, v4.4s
+ add a3, a3, a4
+
+ eor v15.16b, v15.16b, v0.16b
+ eor a15, a15, a0
+ eor v12.16b, v12.16b, v1.16b
+ eor a12, a12, a1
+ eor v13.16b, v13.16b, v2.16b
+ eor a13, a13, a2
+ eor v14.16b, v14.16b, v3.16b
+ eor a14, a14, a3
+
+ rev32 v15.8h, v15.8h
+ ror a15, a15, #16
+ rev32 v12.8h, v12.8h
+ ror a12, a12, #16
+ rev32 v13.8h, v13.8h
+ ror a13, a13, #16
+ rev32 v14.8h, v14.8h
+ ror a14, a14, #16
+
+ // x10 += x15, x5 = rotl32(x5 ^ x10, 12)
+ // x11 += x12, x6 = rotl32(x6 ^ x11, 12)
+ // x8 += x13, x7 = rotl32(x7 ^ x8, 12)
+ // x9 += x14, x4 = rotl32(x4 ^ x9, 12)
+ add v10.4s, v10.4s, v15.4s
+ add a10, a10, a15
+ add v11.4s, v11.4s, v12.4s
+ add a11, a11, a12
+ add v8.4s, v8.4s, v13.4s
+ add a8, a8, a13
+ add v9.4s, v9.4s, v14.4s
+ add a9, a9, a14
+
+ eor v16.16b, v5.16b, v10.16b
+ eor a5, a5, a10
+ eor v17.16b, v6.16b, v11.16b
+ eor a6, a6, a11
+ eor v18.16b, v7.16b, v8.16b
+ eor a7, a7, a8
+ eor v19.16b, v4.16b, v9.16b
+ eor a4, a4, a9
+
+ shl v5.4s, v16.4s, #12
+ shl v6.4s, v17.4s, #12
+ shl v7.4s, v18.4s, #12
+ shl v4.4s, v19.4s, #12
+
+ sri v5.4s, v16.4s, #20
+ ror a5, a5, #20
+ sri v6.4s, v17.4s, #20
+ ror a6, a6, #20
+ sri v7.4s, v18.4s, #20
+ ror a7, a7, #20
+ sri v4.4s, v19.4s, #20
+ ror a4, a4, #20
+
+ // x0 += x5, x15 = rotl32(x15 ^ x0, 8)
+ // x1 += x6, x12 = rotl32(x12 ^ x1, 8)
+ // x2 += x7, x13 = rotl32(x13 ^ x2, 8)
+ // x3 += x4, x14 = rotl32(x14 ^ x3, 8)
+ add v0.4s, v0.4s, v5.4s
+ add a0, a0, a5
+ add v1.4s, v1.4s, v6.4s
+ add a1, a1, a6
+ add v2.4s, v2.4s, v7.4s
+ add a2, a2, a7
+ add v3.4s, v3.4s, v4.4s
+ add a3, a3, a4
+
+ eor v15.16b, v15.16b, v0.16b
+ eor a15, a15, a0
+ eor v12.16b, v12.16b, v1.16b
+ eor a12, a12, a1
+ eor v13.16b, v13.16b, v2.16b
+ eor a13, a13, a2
+ eor v14.16b, v14.16b, v3.16b
+ eor a14, a14, a3
+
+ tbl v15.16b, {v15.16b}, v31.16b
+ ror a15, a15, #24
+ tbl v12.16b, {v12.16b}, v31.16b
+ ror a12, a12, #24
+ tbl v13.16b, {v13.16b}, v31.16b
+ ror a13, a13, #24
+ tbl v14.16b, {v14.16b}, v31.16b
+ ror a14, a14, #24
+
+ // x10 += x15, x5 = rotl32(x5 ^ x10, 7)
+ // x11 += x12, x6 = rotl32(x6 ^ x11, 7)
+ // x8 += x13, x7 = rotl32(x7 ^ x8, 7)
+ // x9 += x14, x4 = rotl32(x4 ^ x9, 7)
+ add v10.4s, v10.4s, v15.4s
+ add a10, a10, a15
+ add v11.4s, v11.4s, v12.4s
+ add a11, a11, a12
+ add v8.4s, v8.4s, v13.4s
+ add a8, a8, a13
+ add v9.4s, v9.4s, v14.4s
+ add a9, a9, a14
+
+ eor v16.16b, v5.16b, v10.16b
+ eor a5, a5, a10
+ eor v17.16b, v6.16b, v11.16b
+ eor a6, a6, a11
+ eor v18.16b, v7.16b, v8.16b
+ eor a7, a7, a8
+ eor v19.16b, v4.16b, v9.16b
+ eor a4, a4, a9
+
+ shl v5.4s, v16.4s, #7
+ shl v6.4s, v17.4s, #7
+ shl v7.4s, v18.4s, #7
+ shl v4.4s, v19.4s, #7
+
+ sri v5.4s, v16.4s, #25
+ ror a5, a5, #25
+ sri v6.4s, v17.4s, #25
+ ror a6, a6, #25
+ sri v7.4s, v18.4s, #25
+ ror a7, a7, #25
+ sri v4.4s, v19.4s, #25
+ ror a4, a4, #25
+
+ subs w3, w3, #2
+ b.ne .Ldoubleround4
+
+ ld4r {v16.4s-v19.4s}, [x0], #16
+ ld4r {v20.4s-v23.4s}, [x0], #16
+
+ // x12 += counter values 0-3
+ add v12.4s, v12.4s, v30.4s
+
+ // x0[0-3] += s0[0]
+ // x1[0-3] += s0[1]
+ // x2[0-3] += s0[2]
+ // x3[0-3] += s0[3]
+ add v0.4s, v0.4s, v16.4s
+ mov w6, v16.s[0]
+ mov w7, v17.s[0]
+ add v1.4s, v1.4s, v17.4s
+ mov w8, v18.s[0]
+ mov w9, v19.s[0]
+ add v2.4s, v2.4s, v18.4s
+ add a0, a0, w6
+ add a1, a1, w7
+ add v3.4s, v3.4s, v19.4s
+ add a2, a2, w8
+ add a3, a3, w9
+CPU_BE( rev a0, a0 )
+CPU_BE( rev a1, a1 )
+CPU_BE( rev a2, a2 )
+CPU_BE( rev a3, a3 )
+
+ ld4r {v24.4s-v27.4s}, [x0], #16
+ ld4r {v28.4s-v31.4s}, [x0]
+
+ // x4[0-3] += s1[0]
+ // x5[0-3] += s1[1]
+ // x6[0-3] += s1[2]
+ // x7[0-3] += s1[3]
+ add v4.4s, v4.4s, v20.4s
+ mov w6, v20.s[0]
+ mov w7, v21.s[0]
+ add v5.4s, v5.4s, v21.4s
+ mov w8, v22.s[0]
+ mov w9, v23.s[0]
+ add v6.4s, v6.4s, v22.4s
+ add a4, a4, w6
+ add a5, a5, w7
+ add v7.4s, v7.4s, v23.4s
+ add a6, a6, w8
+ add a7, a7, w9
+CPU_BE( rev a4, a4 )
+CPU_BE( rev a5, a5 )
+CPU_BE( rev a6, a6 )
+CPU_BE( rev a7, a7 )
+
+ // x8[0-3] += s2[0]
+ // x9[0-3] += s2[1]
+ // x10[0-3] += s2[2]
+ // x11[0-3] += s2[3]
+ add v8.4s, v8.4s, v24.4s
+ mov w6, v24.s[0]
+ mov w7, v25.s[0]
+ add v9.4s, v9.4s, v25.4s
+ mov w8, v26.s[0]
+ mov w9, v27.s[0]
+ add v10.4s, v10.4s, v26.4s
+ add a8, a8, w6
+ add a9, a9, w7
+ add v11.4s, v11.4s, v27.4s
+ add a10, a10, w8
+ add a11, a11, w9
+CPU_BE( rev a8, a8 )
+CPU_BE( rev a9, a9 )
+CPU_BE( rev a10, a10 )
+CPU_BE( rev a11, a11 )
+
+ // x12[0-3] += s3[0]
+ // x13[0-3] += s3[1]
+ // x14[0-3] += s3[2]
+ // x15[0-3] += s3[3]
+ add v12.4s, v12.4s, v28.4s
+ mov w6, v28.s[0]
+ mov w7, v29.s[0]
+ add v13.4s, v13.4s, v29.4s
+ mov w8, v30.s[0]
+ mov w9, v31.s[0]
+ add v14.4s, v14.4s, v30.4s
+ add a12, a12, w6
+ add a13, a13, w7
+ add v15.4s, v15.4s, v31.4s
+ add a14, a14, w8
+ add a15, a15, w9
+CPU_BE( rev a12, a12 )
+CPU_BE( rev a13, a13 )
+CPU_BE( rev a14, a14 )
+CPU_BE( rev a15, a15 )
+
+ // interleave 32-bit words in state n, n+1
+ ldp w6, w7, [x2], #64
+ zip1 v16.4s, v0.4s, v1.4s
+ ldp w8, w9, [x2, #-56]
+ eor a0, a0, w6
+ zip2 v17.4s, v0.4s, v1.4s
+ eor a1, a1, w7
+ zip1 v18.4s, v2.4s, v3.4s
+ eor a2, a2, w8
+ zip2 v19.4s, v2.4s, v3.4s
+ eor a3, a3, w9
+ ldp w6, w7, [x2, #-48]
+ zip1 v20.4s, v4.4s, v5.4s
+ ldp w8, w9, [x2, #-40]
+ eor a4, a4, w6
+ zip2 v21.4s, v4.4s, v5.4s
+ eor a5, a5, w7
+ zip1 v22.4s, v6.4s, v7.4s
+ eor a6, a6, w8
+ zip2 v23.4s, v6.4s, v7.4s
+ eor a7, a7, w9
+ ldp w6, w7, [x2, #-32]
+ zip1 v24.4s, v8.4s, v9.4s
+ ldp w8, w9, [x2, #-24]
+ eor a8, a8, w6
+ zip2 v25.4s, v8.4s, v9.4s
+ eor a9, a9, w7
+ zip1 v26.4s, v10.4s, v11.4s
+ eor a10, a10, w8
+ zip2 v27.4s, v10.4s, v11.4s
+ eor a11, a11, w9
+ ldp w6, w7, [x2, #-16]
+ zip1 v28.4s, v12.4s, v13.4s
+ ldp w8, w9, [x2, #-8]
+ eor a12, a12, w6
+ zip2 v29.4s, v12.4s, v13.4s
+ eor a13, a13, w7
+ zip1 v30.4s, v14.4s, v15.4s
+ eor a14, a14, w8
+ zip2 v31.4s, v14.4s, v15.4s
+ eor a15, a15, w9
+
+ mov x3, #64
+ subs x5, x4, #128
+ add x6, x5, x2
+ csel x3, x3, xzr, ge
+ csel x2, x2, x6, ge
+
+ // interleave 64-bit words in state n, n+2
+ zip1 v0.2d, v16.2d, v18.2d
+ zip2 v4.2d, v16.2d, v18.2d
+ stp a0, a1, [x1], #64
+ zip1 v8.2d, v17.2d, v19.2d
+ zip2 v12.2d, v17.2d, v19.2d
+ stp a2, a3, [x1, #-56]
+ ld1 {v16.16b-v19.16b}, [x2], x3
+
+ subs x6, x4, #192
+ ccmp x3, xzr, #4, lt
+ add x7, x6, x2
+ csel x3, x3, xzr, eq
+ csel x2, x2, x7, eq
+
+ zip1 v1.2d, v20.2d, v22.2d
+ zip2 v5.2d, v20.2d, v22.2d
+ stp a4, a5, [x1, #-48]
+ zip1 v9.2d, v21.2d, v23.2d
+ zip2 v13.2d, v21.2d, v23.2d
+ stp a6, a7, [x1, #-40]
+ ld1 {v20.16b-v23.16b}, [x2], x3
+
+ subs x7, x4, #256
+ ccmp x3, xzr, #4, lt
+ add x8, x7, x2
+ csel x3, x3, xzr, eq
+ csel x2, x2, x8, eq
+
+ zip1 v2.2d, v24.2d, v26.2d
+ zip2 v6.2d, v24.2d, v26.2d
+ stp a8, a9, [x1, #-32]
+ zip1 v10.2d, v25.2d, v27.2d
+ zip2 v14.2d, v25.2d, v27.2d
+ stp a10, a11, [x1, #-24]
+ ld1 {v24.16b-v27.16b}, [x2], x3
+
+ subs x8, x4, #320
+ ccmp x3, xzr, #4, lt
+ add x9, x8, x2
+ csel x2, x2, x9, eq
+
+ zip1 v3.2d, v28.2d, v30.2d
+ zip2 v7.2d, v28.2d, v30.2d
+ stp a12, a13, [x1, #-16]
+ zip1 v11.2d, v29.2d, v31.2d
+ zip2 v15.2d, v29.2d, v31.2d
+ stp a14, a15, [x1, #-8]
+ ld1 {v28.16b-v31.16b}, [x2]
+
+ // xor with corresponding input, write to output
+ tbnz x5, #63, 0f
+ eor v16.16b, v16.16b, v0.16b
+ eor v17.16b, v17.16b, v1.16b
+ eor v18.16b, v18.16b, v2.16b
+ eor v19.16b, v19.16b, v3.16b
+ st1 {v16.16b-v19.16b}, [x1], #64
+ cbz x5, .Lout
+
+ tbnz x6, #63, 1f
+ eor v20.16b, v20.16b, v4.16b
+ eor v21.16b, v21.16b, v5.16b
+ eor v22.16b, v22.16b, v6.16b
+ eor v23.16b, v23.16b, v7.16b
+ st1 {v20.16b-v23.16b}, [x1], #64
+ cbz x6, .Lout
+
+ tbnz x7, #63, 2f
+ eor v24.16b, v24.16b, v8.16b
+ eor v25.16b, v25.16b, v9.16b
+ eor v26.16b, v26.16b, v10.16b
+ eor v27.16b, v27.16b, v11.16b
+ st1 {v24.16b-v27.16b}, [x1], #64
+ cbz x7, .Lout
+
+ tbnz x8, #63, 3f
+ eor v28.16b, v28.16b, v12.16b
+ eor v29.16b, v29.16b, v13.16b
+ eor v30.16b, v30.16b, v14.16b
+ eor v31.16b, v31.16b, v15.16b
+ st1 {v28.16b-v31.16b}, [x1]
+
+.Lout: frame_pop
+ ret
+
+ // fewer than 128 bytes of in/output
+0: ld1 {v8.16b}, [x10]
+ ld1 {v9.16b}, [x11]
+ movi v10.16b, #16
+ sub x2, x1, #64
+ add x1, x1, x5
+ ld1 {v16.16b-v19.16b}, [x2]
+ tbl v4.16b, {v0.16b-v3.16b}, v8.16b
+ tbx v20.16b, {v16.16b-v19.16b}, v9.16b
+ add v8.16b, v8.16b, v10.16b
+ add v9.16b, v9.16b, v10.16b
+ tbl v5.16b, {v0.16b-v3.16b}, v8.16b
+ tbx v21.16b, {v16.16b-v19.16b}, v9.16b
+ add v8.16b, v8.16b, v10.16b
+ add v9.16b, v9.16b, v10.16b
+ tbl v6.16b, {v0.16b-v3.16b}, v8.16b
+ tbx v22.16b, {v16.16b-v19.16b}, v9.16b
+ add v8.16b, v8.16b, v10.16b
+ add v9.16b, v9.16b, v10.16b
+ tbl v7.16b, {v0.16b-v3.16b}, v8.16b
+ tbx v23.16b, {v16.16b-v19.16b}, v9.16b
+
+ eor v20.16b, v20.16b, v4.16b
+ eor v21.16b, v21.16b, v5.16b
+ eor v22.16b, v22.16b, v6.16b
+ eor v23.16b, v23.16b, v7.16b
+ st1 {v20.16b-v23.16b}, [x1]
+ b .Lout
+
+ // fewer than 192 bytes of in/output
+1: ld1 {v8.16b}, [x10]
+ ld1 {v9.16b}, [x11]
+ movi v10.16b, #16
+ add x1, x1, x6
+ tbl v0.16b, {v4.16b-v7.16b}, v8.16b
+ tbx v20.16b, {v16.16b-v19.16b}, v9.16b
+ add v8.16b, v8.16b, v10.16b
+ add v9.16b, v9.16b, v10.16b
+ tbl v1.16b, {v4.16b-v7.16b}, v8.16b
+ tbx v21.16b, {v16.16b-v19.16b}, v9.16b
+ add v8.16b, v8.16b, v10.16b
+ add v9.16b, v9.16b, v10.16b
+ tbl v2.16b, {v4.16b-v7.16b}, v8.16b
+ tbx v22.16b, {v16.16b-v19.16b}, v9.16b
+ add v8.16b, v8.16b, v10.16b
+ add v9.16b, v9.16b, v10.16b
+ tbl v3.16b, {v4.16b-v7.16b}, v8.16b
+ tbx v23.16b, {v16.16b-v19.16b}, v9.16b
+
+ eor v20.16b, v20.16b, v0.16b
+ eor v21.16b, v21.16b, v1.16b
+ eor v22.16b, v22.16b, v2.16b
+ eor v23.16b, v23.16b, v3.16b
+ st1 {v20.16b-v23.16b}, [x1]
+ b .Lout
+
+ // fewer than 256 bytes of in/output
+2: ld1 {v4.16b}, [x10]
+ ld1 {v5.16b}, [x11]
+ movi v6.16b, #16
+ add x1, x1, x7
+ tbl v0.16b, {v8.16b-v11.16b}, v4.16b
+ tbx v24.16b, {v20.16b-v23.16b}, v5.16b
+ add v4.16b, v4.16b, v6.16b
+ add v5.16b, v5.16b, v6.16b
+ tbl v1.16b, {v8.16b-v11.16b}, v4.16b
+ tbx v25.16b, {v20.16b-v23.16b}, v5.16b
+ add v4.16b, v4.16b, v6.16b
+ add v5.16b, v5.16b, v6.16b
+ tbl v2.16b, {v8.16b-v11.16b}, v4.16b
+ tbx v26.16b, {v20.16b-v23.16b}, v5.16b
+ add v4.16b, v4.16b, v6.16b
+ add v5.16b, v5.16b, v6.16b
+ tbl v3.16b, {v8.16b-v11.16b}, v4.16b
+ tbx v27.16b, {v20.16b-v23.16b}, v5.16b
+
+ eor v24.16b, v24.16b, v0.16b
+ eor v25.16b, v25.16b, v1.16b
+ eor v26.16b, v26.16b, v2.16b
+ eor v27.16b, v27.16b, v3.16b
+ st1 {v24.16b-v27.16b}, [x1]
+ b .Lout
+
+ // fewer than 320 bytes of in/output
+3: ld1 {v4.16b}, [x10]
+ ld1 {v5.16b}, [x11]
+ movi v6.16b, #16
+ add x1, x1, x8
+ tbl v0.16b, {v12.16b-v15.16b}, v4.16b
+ tbx v28.16b, {v24.16b-v27.16b}, v5.16b
+ add v4.16b, v4.16b, v6.16b
+ add v5.16b, v5.16b, v6.16b
+ tbl v1.16b, {v12.16b-v15.16b}, v4.16b
+ tbx v29.16b, {v24.16b-v27.16b}, v5.16b
+ add v4.16b, v4.16b, v6.16b
+ add v5.16b, v5.16b, v6.16b
+ tbl v2.16b, {v12.16b-v15.16b}, v4.16b
+ tbx v30.16b, {v24.16b-v27.16b}, v5.16b
+ add v4.16b, v4.16b, v6.16b
+ add v5.16b, v5.16b, v6.16b
+ tbl v3.16b, {v12.16b-v15.16b}, v4.16b
+ tbx v31.16b, {v24.16b-v27.16b}, v5.16b
+
+ eor v28.16b, v28.16b, v0.16b
+ eor v29.16b, v29.16b, v1.16b
+ eor v30.16b, v30.16b, v2.16b
+ eor v31.16b, v31.16b, v3.16b
+ st1 {v28.16b-v31.16b}, [x1]
+ b .Lout
+ENDPROC(chacha_4block_xor_neon)
+
+ .section ".rodata", "a", %progbits
+ .align L1_CACHE_SHIFT
+.Lpermute:
+ .set .Li, 0
+ .rept 192
+ .byte (.Li - 64)
+ .set .Li, .Li + 1
+ .endr
+
+CTRINC: .word 1, 2, 3, 4
+ROT8: .word 0x02010003, 0x06050407, 0x0a09080b, 0x0e0d0c0f
diff --git a/arch/arm64/crypto/chacha-neon-glue.c b/arch/arm64/crypto/chacha-neon-glue.c
new file mode 100644
index 0000000..531567a
--- /dev/null
+++ b/arch/arm64/crypto/chacha-neon-glue.c
@@ -0,0 +1,242 @@
+/*
+ * ARM NEON and scalar accelerated ChaCha and XChaCha stream ciphers,
+ * including ChaCha20 (RFC7539)
+ *
+ * Copyright (C) 2016 - 2017 Linaro, Ltd. <ard.biesheuvel@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Based on:
+ * ChaCha20 256-bit cipher algorithm, RFC7539, SIMD glue code
+ *
+ * Copyright (C) 2015 Martin Willi
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <crypto/algapi.h>
+#include <crypto/internal/chacha.h>
+#include <crypto/internal/skcipher.h>
+#include <linux/jump_label.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include <asm/hwcap.h>
+#include <asm/neon.h>
+#include <asm/simd.h>
+
+asmlinkage void chacha_block_xor_neon(u32 *state, u8 *dst, const u8 *src,
+ int nrounds);
+asmlinkage void chacha_4block_xor_neon(u32 *state, u8 *dst, const u8 *src,
+ int nrounds, int bytes);
+asmlinkage void hchacha_block_neon(const u32 *state, u32 *out, int nrounds);
+
+static __ro_after_init DEFINE_STATIC_KEY_FALSE(have_neon);
+
+static void chacha_doneon(u32 *state, u8 *dst, const u8 *src,
+ int bytes, int nrounds)
+{
+ while (bytes > 0) {
+ int l = min(bytes, CHACHA_BLOCK_SIZE * 5);
+
+ if (l <= CHACHA_BLOCK_SIZE) {
+ u8 buf[CHACHA_BLOCK_SIZE];
+
+ memcpy(buf, src, l);
+ chacha_block_xor_neon(state, buf, buf, nrounds);
+ memcpy(dst, buf, l);
+ state[12] += 1;
+ break;
+ }
+ chacha_4block_xor_neon(state, dst, src, nrounds, l);
+ bytes -= l;
+ src += l;
+ dst += l;
+ state[12] += DIV_ROUND_UP(l, CHACHA_BLOCK_SIZE);
+ }
+}
+
+void hchacha_block_arch(const u32 *state, u32 *stream, int nrounds)
+{
+ if (!static_branch_likely(&have_neon) || !may_use_simd()) {
+ hchacha_block_generic(state, stream, nrounds);
+ } else {
+ kernel_neon_begin();
+ hchacha_block_neon(state, stream, nrounds);
+ kernel_neon_end();
+ }
+}
+EXPORT_SYMBOL(hchacha_block_arch);
+
+void chacha_init_arch(u32 *state, const u32 *key, const u8 *iv)
+{
+ chacha_init_generic(state, key, iv);
+}
+EXPORT_SYMBOL(chacha_init_arch);
+
+void chacha_crypt_arch(u32 *state, u8 *dst, const u8 *src, unsigned int bytes,
+ int nrounds)
+{
+ if (!static_branch_likely(&have_neon) || bytes <= CHACHA_BLOCK_SIZE ||
+ !may_use_simd())
+ return chacha_crypt_generic(state, dst, src, bytes, nrounds);
+
+ do {
+ unsigned int todo = min_t(unsigned int, bytes, SZ_4K);
+
+ kernel_neon_begin();
+ chacha_doneon(state, dst, src, todo, nrounds);
+ kernel_neon_end();
+
+ bytes -= todo;
+ src += todo;
+ dst += todo;
+ } while (bytes);
+}
+EXPORT_SYMBOL(chacha_crypt_arch);
+
+static int chacha_neon_stream_xor(struct skcipher_request *req,
+ const struct chacha_ctx *ctx, const u8 *iv)
+{
+ struct skcipher_walk walk;
+ u32 state[16];
+ int err;
+
+ err = skcipher_walk_virt(&walk, req, false);
+
+ chacha_init_generic(state, ctx->key, iv);
+
+ while (walk.nbytes > 0) {
+ unsigned int nbytes = walk.nbytes;
+
+ if (nbytes < walk.total)
+ nbytes = rounddown(nbytes, walk.stride);
+
+ if (!static_branch_likely(&have_neon) ||
+ !may_use_simd()) {
+ chacha_crypt_generic(state, walk.dst.virt.addr,
+ walk.src.virt.addr, nbytes,
+ ctx->nrounds);
+ } else {
+ kernel_neon_begin();
+ chacha_doneon(state, walk.dst.virt.addr,
+ walk.src.virt.addr, nbytes, ctx->nrounds);
+ kernel_neon_end();
+ }
+ err = skcipher_walk_done(&walk, walk.nbytes - nbytes);
+ }
+
+ return err;
+}
+
+static int chacha_neon(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+ return chacha_neon_stream_xor(req, ctx, req->iv);
+}
+
+static int xchacha_neon(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct chacha_ctx subctx;
+ u32 state[16];
+ u8 real_iv[16];
+
+ chacha_init_generic(state, ctx->key, req->iv);
+ hchacha_block_arch(state, subctx.key, ctx->nrounds);
+ subctx.nrounds = ctx->nrounds;
+
+ memcpy(&real_iv[0], req->iv + 24, 8);
+ memcpy(&real_iv[8], req->iv + 16, 8);
+ return chacha_neon_stream_xor(req, &subctx, real_iv);
+}
+
+static struct skcipher_alg algs[] = {
+ {
+ .base.cra_name = "chacha20",
+ .base.cra_driver_name = "chacha20-neon",
+ .base.cra_priority = 300,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
+ .base.cra_module = THIS_MODULE,
+
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = CHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
+ .walksize = 5 * CHACHA_BLOCK_SIZE,
+ .setkey = chacha20_setkey,
+ .encrypt = chacha_neon,
+ .decrypt = chacha_neon,
+ }, {
+ .base.cra_name = "xchacha20",
+ .base.cra_driver_name = "xchacha20-neon",
+ .base.cra_priority = 300,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
+ .base.cra_module = THIS_MODULE,
+
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = XCHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
+ .walksize = 5 * CHACHA_BLOCK_SIZE,
+ .setkey = chacha20_setkey,
+ .encrypt = xchacha_neon,
+ .decrypt = xchacha_neon,
+ }, {
+ .base.cra_name = "xchacha12",
+ .base.cra_driver_name = "xchacha12-neon",
+ .base.cra_priority = 300,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
+ .base.cra_module = THIS_MODULE,
+
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = XCHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
+ .walksize = 5 * CHACHA_BLOCK_SIZE,
+ .setkey = chacha12_setkey,
+ .encrypt = xchacha_neon,
+ .decrypt = xchacha_neon,
+ }
+};
+
+static int __init chacha_simd_mod_init(void)
+{
+ if (!(elf_hwcap & HWCAP_ASIMD))
+ return 0;
+
+ static_branch_enable(&have_neon);
+
+ return IS_REACHABLE(CONFIG_CRYPTO_BLKCIPHER) ?
+ crypto_register_skciphers(algs, ARRAY_SIZE(algs)) : 0;
+}
+
+static void __exit chacha_simd_mod_fini(void)
+{
+ if (IS_REACHABLE(CONFIG_CRYPTO_BLKCIPHER) && (elf_hwcap & HWCAP_ASIMD))
+ crypto_unregister_skciphers(algs, ARRAY_SIZE(algs));
+}
+
+module_init(chacha_simd_mod_init);
+module_exit(chacha_simd_mod_fini);
+
+MODULE_DESCRIPTION("ChaCha and XChaCha stream ciphers (NEON accelerated)");
+MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS_CRYPTO("chacha20");
+MODULE_ALIAS_CRYPTO("chacha20-neon");
+MODULE_ALIAS_CRYPTO("xchacha20");
+MODULE_ALIAS_CRYPTO("xchacha20-neon");
+MODULE_ALIAS_CRYPTO("xchacha12");
+MODULE_ALIAS_CRYPTO("xchacha12-neon");
diff --git a/arch/arm64/crypto/chacha20-neon-core.S b/arch/arm64/crypto/chacha20-neon-core.S
deleted file mode 100644
index 13c85e2..0000000
--- a/arch/arm64/crypto/chacha20-neon-core.S
+++ /dev/null
@@ -1,450 +0,0 @@
-/*
- * ChaCha20 256-bit cipher algorithm, RFC7539, arm64 NEON functions
- *
- * Copyright (C) 2016 Linaro, Ltd. <ard.biesheuvel@linaro.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Based on:
- * ChaCha20 256-bit cipher algorithm, RFC7539, x64 SSSE3 functions
- *
- * Copyright (C) 2015 Martin Willi
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#include <linux/linkage.h>
-
- .text
- .align 6
-
-ENTRY(chacha20_block_xor_neon)
- // x0: Input state matrix, s
- // x1: 1 data block output, o
- // x2: 1 data block input, i
-
- //
- // This function encrypts one ChaCha20 block by loading the state matrix
- // in four NEON registers. It performs matrix operation on four words in
- // parallel, but requires shuffling to rearrange the words after each
- // round.
- //
-
- // x0..3 = s0..3
- adr x3, ROT8
- ld1 {v0.4s-v3.4s}, [x0]
- ld1 {v8.4s-v11.4s}, [x0]
- ld1 {v12.4s}, [x3]
-
- mov x3, #10
-
-.Ldoubleround:
- // x0 += x1, x3 = rotl32(x3 ^ x0, 16)
- add v0.4s, v0.4s, v1.4s
- eor v3.16b, v3.16b, v0.16b
- rev32 v3.8h, v3.8h
-
- // x2 += x3, x1 = rotl32(x1 ^ x2, 12)
- add v2.4s, v2.4s, v3.4s
- eor v4.16b, v1.16b, v2.16b
- shl v1.4s, v4.4s, #12
- sri v1.4s, v4.4s, #20
-
- // x0 += x1, x3 = rotl32(x3 ^ x0, 8)
- add v0.4s, v0.4s, v1.4s
- eor v3.16b, v3.16b, v0.16b
- tbl v3.16b, {v3.16b}, v12.16b
-
- // x2 += x3, x1 = rotl32(x1 ^ x2, 7)
- add v2.4s, v2.4s, v3.4s
- eor v4.16b, v1.16b, v2.16b
- shl v1.4s, v4.4s, #7
- sri v1.4s, v4.4s, #25
-
- // x1 = shuffle32(x1, MASK(0, 3, 2, 1))
- ext v1.16b, v1.16b, v1.16b, #4
- // x2 = shuffle32(x2, MASK(1, 0, 3, 2))
- ext v2.16b, v2.16b, v2.16b, #8
- // x3 = shuffle32(x3, MASK(2, 1, 0, 3))
- ext v3.16b, v3.16b, v3.16b, #12
-
- // x0 += x1, x3 = rotl32(x3 ^ x0, 16)
- add v0.4s, v0.4s, v1.4s
- eor v3.16b, v3.16b, v0.16b
- rev32 v3.8h, v3.8h
-
- // x2 += x3, x1 = rotl32(x1 ^ x2, 12)
- add v2.4s, v2.4s, v3.4s
- eor v4.16b, v1.16b, v2.16b
- shl v1.4s, v4.4s, #12
- sri v1.4s, v4.4s, #20
-
- // x0 += x1, x3 = rotl32(x3 ^ x0, 8)
- add v0.4s, v0.4s, v1.4s
- eor v3.16b, v3.16b, v0.16b
- tbl v3.16b, {v3.16b}, v12.16b
-
- // x2 += x3, x1 = rotl32(x1 ^ x2, 7)
- add v2.4s, v2.4s, v3.4s
- eor v4.16b, v1.16b, v2.16b
- shl v1.4s, v4.4s, #7
- sri v1.4s, v4.4s, #25
-
- // x1 = shuffle32(x1, MASK(2, 1, 0, 3))
- ext v1.16b, v1.16b, v1.16b, #12
- // x2 = shuffle32(x2, MASK(1, 0, 3, 2))
- ext v2.16b, v2.16b, v2.16b, #8
- // x3 = shuffle32(x3, MASK(0, 3, 2, 1))
- ext v3.16b, v3.16b, v3.16b, #4
-
- subs x3, x3, #1
- b.ne .Ldoubleround
-
- ld1 {v4.16b-v7.16b}, [x2]
-
- // o0 = i0 ^ (x0 + s0)
- add v0.4s, v0.4s, v8.4s
- eor v0.16b, v0.16b, v4.16b
-
- // o1 = i1 ^ (x1 + s1)
- add v1.4s, v1.4s, v9.4s
- eor v1.16b, v1.16b, v5.16b
-
- // o2 = i2 ^ (x2 + s2)
- add v2.4s, v2.4s, v10.4s
- eor v2.16b, v2.16b, v6.16b
-
- // o3 = i3 ^ (x3 + s3)
- add v3.4s, v3.4s, v11.4s
- eor v3.16b, v3.16b, v7.16b
-
- st1 {v0.16b-v3.16b}, [x1]
-
- ret
-ENDPROC(chacha20_block_xor_neon)
-
- .align 6
-ENTRY(chacha20_4block_xor_neon)
- // x0: Input state matrix, s
- // x1: 4 data blocks output, o
- // x2: 4 data blocks input, i
-
- //
- // This function encrypts four consecutive ChaCha20 blocks by loading
- // the state matrix in NEON registers four times. The algorithm performs
- // each operation on the corresponding word of each state matrix, hence
- // requires no word shuffling. For final XORing step we transpose the
- // matrix by interleaving 32- and then 64-bit words, which allows us to
- // do XOR in NEON registers.
- //
- adr x3, CTRINC // ... and ROT8
- ld1 {v30.4s-v31.4s}, [x3]
-
- // x0..15[0-3] = s0..3[0..3]
- mov x4, x0
- ld4r { v0.4s- v3.4s}, [x4], #16
- ld4r { v4.4s- v7.4s}, [x4], #16
- ld4r { v8.4s-v11.4s}, [x4], #16
- ld4r {v12.4s-v15.4s}, [x4]
-
- // x12 += counter values 0-3
- add v12.4s, v12.4s, v30.4s
-
- mov x3, #10
-
-.Ldoubleround4:
- // x0 += x4, x12 = rotl32(x12 ^ x0, 16)
- // x1 += x5, x13 = rotl32(x13 ^ x1, 16)
- // x2 += x6, x14 = rotl32(x14 ^ x2, 16)
- // x3 += x7, x15 = rotl32(x15 ^ x3, 16)
- add v0.4s, v0.4s, v4.4s
- add v1.4s, v1.4s, v5.4s
- add v2.4s, v2.4s, v6.4s
- add v3.4s, v3.4s, v7.4s
-
- eor v12.16b, v12.16b, v0.16b
- eor v13.16b, v13.16b, v1.16b
- eor v14.16b, v14.16b, v2.16b
- eor v15.16b, v15.16b, v3.16b
-
- rev32 v12.8h, v12.8h
- rev32 v13.8h, v13.8h
- rev32 v14.8h, v14.8h
- rev32 v15.8h, v15.8h
-
- // x8 += x12, x4 = rotl32(x4 ^ x8, 12)
- // x9 += x13, x5 = rotl32(x5 ^ x9, 12)
- // x10 += x14, x6 = rotl32(x6 ^ x10, 12)
- // x11 += x15, x7 = rotl32(x7 ^ x11, 12)
- add v8.4s, v8.4s, v12.4s
- add v9.4s, v9.4s, v13.4s
- add v10.4s, v10.4s, v14.4s
- add v11.4s, v11.4s, v15.4s
-
- eor v16.16b, v4.16b, v8.16b
- eor v17.16b, v5.16b, v9.16b
- eor v18.16b, v6.16b, v10.16b
- eor v19.16b, v7.16b, v11.16b
-
- shl v4.4s, v16.4s, #12
- shl v5.4s, v17.4s, #12
- shl v6.4s, v18.4s, #12
- shl v7.4s, v19.4s, #12
-
- sri v4.4s, v16.4s, #20
- sri v5.4s, v17.4s, #20
- sri v6.4s, v18.4s, #20
- sri v7.4s, v19.4s, #20
-
- // x0 += x4, x12 = rotl32(x12 ^ x0, 8)
- // x1 += x5, x13 = rotl32(x13 ^ x1, 8)
- // x2 += x6, x14 = rotl32(x14 ^ x2, 8)
- // x3 += x7, x15 = rotl32(x15 ^ x3, 8)
- add v0.4s, v0.4s, v4.4s
- add v1.4s, v1.4s, v5.4s
- add v2.4s, v2.4s, v6.4s
- add v3.4s, v3.4s, v7.4s
-
- eor v12.16b, v12.16b, v0.16b
- eor v13.16b, v13.16b, v1.16b
- eor v14.16b, v14.16b, v2.16b
- eor v15.16b, v15.16b, v3.16b
-
- tbl v12.16b, {v12.16b}, v31.16b
- tbl v13.16b, {v13.16b}, v31.16b
- tbl v14.16b, {v14.16b}, v31.16b
- tbl v15.16b, {v15.16b}, v31.16b
-
- // x8 += x12, x4 = rotl32(x4 ^ x8, 7)
- // x9 += x13, x5 = rotl32(x5 ^ x9, 7)
- // x10 += x14, x6 = rotl32(x6 ^ x10, 7)
- // x11 += x15, x7 = rotl32(x7 ^ x11, 7)
- add v8.4s, v8.4s, v12.4s
- add v9.4s, v9.4s, v13.4s
- add v10.4s, v10.4s, v14.4s
- add v11.4s, v11.4s, v15.4s
-
- eor v16.16b, v4.16b, v8.16b
- eor v17.16b, v5.16b, v9.16b
- eor v18.16b, v6.16b, v10.16b
- eor v19.16b, v7.16b, v11.16b
-
- shl v4.4s, v16.4s, #7
- shl v5.4s, v17.4s, #7
- shl v6.4s, v18.4s, #7
- shl v7.4s, v19.4s, #7
-
- sri v4.4s, v16.4s, #25
- sri v5.4s, v17.4s, #25
- sri v6.4s, v18.4s, #25
- sri v7.4s, v19.4s, #25
-
- // x0 += x5, x15 = rotl32(x15 ^ x0, 16)
- // x1 += x6, x12 = rotl32(x12 ^ x1, 16)
- // x2 += x7, x13 = rotl32(x13 ^ x2, 16)
- // x3 += x4, x14 = rotl32(x14 ^ x3, 16)
- add v0.4s, v0.4s, v5.4s
- add v1.4s, v1.4s, v6.4s
- add v2.4s, v2.4s, v7.4s
- add v3.4s, v3.4s, v4.4s
-
- eor v15.16b, v15.16b, v0.16b
- eor v12.16b, v12.16b, v1.16b
- eor v13.16b, v13.16b, v2.16b
- eor v14.16b, v14.16b, v3.16b
-
- rev32 v15.8h, v15.8h
- rev32 v12.8h, v12.8h
- rev32 v13.8h, v13.8h
- rev32 v14.8h, v14.8h
-
- // x10 += x15, x5 = rotl32(x5 ^ x10, 12)
- // x11 += x12, x6 = rotl32(x6 ^ x11, 12)
- // x8 += x13, x7 = rotl32(x7 ^ x8, 12)
- // x9 += x14, x4 = rotl32(x4 ^ x9, 12)
- add v10.4s, v10.4s, v15.4s
- add v11.4s, v11.4s, v12.4s
- add v8.4s, v8.4s, v13.4s
- add v9.4s, v9.4s, v14.4s
-
- eor v16.16b, v5.16b, v10.16b
- eor v17.16b, v6.16b, v11.16b
- eor v18.16b, v7.16b, v8.16b
- eor v19.16b, v4.16b, v9.16b
-
- shl v5.4s, v16.4s, #12
- shl v6.4s, v17.4s, #12
- shl v7.4s, v18.4s, #12
- shl v4.4s, v19.4s, #12
-
- sri v5.4s, v16.4s, #20
- sri v6.4s, v17.4s, #20
- sri v7.4s, v18.4s, #20
- sri v4.4s, v19.4s, #20
-
- // x0 += x5, x15 = rotl32(x15 ^ x0, 8)
- // x1 += x6, x12 = rotl32(x12 ^ x1, 8)
- // x2 += x7, x13 = rotl32(x13 ^ x2, 8)
- // x3 += x4, x14 = rotl32(x14 ^ x3, 8)
- add v0.4s, v0.4s, v5.4s
- add v1.4s, v1.4s, v6.4s
- add v2.4s, v2.4s, v7.4s
- add v3.4s, v3.4s, v4.4s
-
- eor v15.16b, v15.16b, v0.16b
- eor v12.16b, v12.16b, v1.16b
- eor v13.16b, v13.16b, v2.16b
- eor v14.16b, v14.16b, v3.16b
-
- tbl v15.16b, {v15.16b}, v31.16b
- tbl v12.16b, {v12.16b}, v31.16b
- tbl v13.16b, {v13.16b}, v31.16b
- tbl v14.16b, {v14.16b}, v31.16b
-
- // x10 += x15, x5 = rotl32(x5 ^ x10, 7)
- // x11 += x12, x6 = rotl32(x6 ^ x11, 7)
- // x8 += x13, x7 = rotl32(x7 ^ x8, 7)
- // x9 += x14, x4 = rotl32(x4 ^ x9, 7)
- add v10.4s, v10.4s, v15.4s
- add v11.4s, v11.4s, v12.4s
- add v8.4s, v8.4s, v13.4s
- add v9.4s, v9.4s, v14.4s
-
- eor v16.16b, v5.16b, v10.16b
- eor v17.16b, v6.16b, v11.16b
- eor v18.16b, v7.16b, v8.16b
- eor v19.16b, v4.16b, v9.16b
-
- shl v5.4s, v16.4s, #7
- shl v6.4s, v17.4s, #7
- shl v7.4s, v18.4s, #7
- shl v4.4s, v19.4s, #7
-
- sri v5.4s, v16.4s, #25
- sri v6.4s, v17.4s, #25
- sri v7.4s, v18.4s, #25
- sri v4.4s, v19.4s, #25
-
- subs x3, x3, #1
- b.ne .Ldoubleround4
-
- ld4r {v16.4s-v19.4s}, [x0], #16
- ld4r {v20.4s-v23.4s}, [x0], #16
-
- // x12 += counter values 0-3
- add v12.4s, v12.4s, v30.4s
-
- // x0[0-3] += s0[0]
- // x1[0-3] += s0[1]
- // x2[0-3] += s0[2]
- // x3[0-3] += s0[3]
- add v0.4s, v0.4s, v16.4s
- add v1.4s, v1.4s, v17.4s
- add v2.4s, v2.4s, v18.4s
- add v3.4s, v3.4s, v19.4s
-
- ld4r {v24.4s-v27.4s}, [x0], #16
- ld4r {v28.4s-v31.4s}, [x0]
-
- // x4[0-3] += s1[0]
- // x5[0-3] += s1[1]
- // x6[0-3] += s1[2]
- // x7[0-3] += s1[3]
- add v4.4s, v4.4s, v20.4s
- add v5.4s, v5.4s, v21.4s
- add v6.4s, v6.4s, v22.4s
- add v7.4s, v7.4s, v23.4s
-
- // x8[0-3] += s2[0]
- // x9[0-3] += s2[1]
- // x10[0-3] += s2[2]
- // x11[0-3] += s2[3]
- add v8.4s, v8.4s, v24.4s
- add v9.4s, v9.4s, v25.4s
- add v10.4s, v10.4s, v26.4s
- add v11.4s, v11.4s, v27.4s
-
- // x12[0-3] += s3[0]
- // x13[0-3] += s3[1]
- // x14[0-3] += s3[2]
- // x15[0-3] += s3[3]
- add v12.4s, v12.4s, v28.4s
- add v13.4s, v13.4s, v29.4s
- add v14.4s, v14.4s, v30.4s
- add v15.4s, v15.4s, v31.4s
-
- // interleave 32-bit words in state n, n+1
- zip1 v16.4s, v0.4s, v1.4s
- zip2 v17.4s, v0.4s, v1.4s
- zip1 v18.4s, v2.4s, v3.4s
- zip2 v19.4s, v2.4s, v3.4s
- zip1 v20.4s, v4.4s, v5.4s
- zip2 v21.4s, v4.4s, v5.4s
- zip1 v22.4s, v6.4s, v7.4s
- zip2 v23.4s, v6.4s, v7.4s
- zip1 v24.4s, v8.4s, v9.4s
- zip2 v25.4s, v8.4s, v9.4s
- zip1 v26.4s, v10.4s, v11.4s
- zip2 v27.4s, v10.4s, v11.4s
- zip1 v28.4s, v12.4s, v13.4s
- zip2 v29.4s, v12.4s, v13.4s
- zip1 v30.4s, v14.4s, v15.4s
- zip2 v31.4s, v14.4s, v15.4s
-
- // interleave 64-bit words in state n, n+2
- zip1 v0.2d, v16.2d, v18.2d
- zip2 v4.2d, v16.2d, v18.2d
- zip1 v8.2d, v17.2d, v19.2d
- zip2 v12.2d, v17.2d, v19.2d
- ld1 {v16.16b-v19.16b}, [x2], #64
-
- zip1 v1.2d, v20.2d, v22.2d
- zip2 v5.2d, v20.2d, v22.2d
- zip1 v9.2d, v21.2d, v23.2d
- zip2 v13.2d, v21.2d, v23.2d
- ld1 {v20.16b-v23.16b}, [x2], #64
-
- zip1 v2.2d, v24.2d, v26.2d
- zip2 v6.2d, v24.2d, v26.2d
- zip1 v10.2d, v25.2d, v27.2d
- zip2 v14.2d, v25.2d, v27.2d
- ld1 {v24.16b-v27.16b}, [x2], #64
-
- zip1 v3.2d, v28.2d, v30.2d
- zip2 v7.2d, v28.2d, v30.2d
- zip1 v11.2d, v29.2d, v31.2d
- zip2 v15.2d, v29.2d, v31.2d
- ld1 {v28.16b-v31.16b}, [x2]
-
- // xor with corresponding input, write to output
- eor v16.16b, v16.16b, v0.16b
- eor v17.16b, v17.16b, v1.16b
- eor v18.16b, v18.16b, v2.16b
- eor v19.16b, v19.16b, v3.16b
- eor v20.16b, v20.16b, v4.16b
- eor v21.16b, v21.16b, v5.16b
- st1 {v16.16b-v19.16b}, [x1], #64
- eor v22.16b, v22.16b, v6.16b
- eor v23.16b, v23.16b, v7.16b
- eor v24.16b, v24.16b, v8.16b
- eor v25.16b, v25.16b, v9.16b
- st1 {v20.16b-v23.16b}, [x1], #64
- eor v26.16b, v26.16b, v10.16b
- eor v27.16b, v27.16b, v11.16b
- eor v28.16b, v28.16b, v12.16b
- st1 {v24.16b-v27.16b}, [x1], #64
- eor v29.16b, v29.16b, v13.16b
- eor v30.16b, v30.16b, v14.16b
- eor v31.16b, v31.16b, v15.16b
- st1 {v28.16b-v31.16b}, [x1]
-
- ret
-ENDPROC(chacha20_4block_xor_neon)
-
-CTRINC: .word 0, 1, 2, 3
-ROT8: .word 0x02010003, 0x06050407, 0x0a09080b, 0x0e0d0c0f
diff --git a/arch/arm64/crypto/chacha20-neon-glue.c b/arch/arm64/crypto/chacha20-neon-glue.c
deleted file mode 100644
index 727579c..0000000
--- a/arch/arm64/crypto/chacha20-neon-glue.c
+++ /dev/null
@@ -1,133 +0,0 @@
-/*
- * ChaCha20 256-bit cipher algorithm, RFC7539, arm64 NEON functions
- *
- * Copyright (C) 2016 - 2017 Linaro, Ltd. <ard.biesheuvel@linaro.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Based on:
- * ChaCha20 256-bit cipher algorithm, RFC7539, SIMD glue code
- *
- * Copyright (C) 2015 Martin Willi
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#include <crypto/algapi.h>
-#include <crypto/chacha20.h>
-#include <crypto/internal/skcipher.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-
-#include <asm/hwcap.h>
-#include <asm/neon.h>
-#include <asm/simd.h>
-
-asmlinkage void chacha20_block_xor_neon(u32 *state, u8 *dst, const u8 *src);
-asmlinkage void chacha20_4block_xor_neon(u32 *state, u8 *dst, const u8 *src);
-
-static void chacha20_doneon(u32 *state, u8 *dst, const u8 *src,
- unsigned int bytes)
-{
- u8 buf[CHACHA20_BLOCK_SIZE];
-
- while (bytes >= CHACHA20_BLOCK_SIZE * 4) {
- kernel_neon_begin();
- chacha20_4block_xor_neon(state, dst, src);
- kernel_neon_end();
- bytes -= CHACHA20_BLOCK_SIZE * 4;
- src += CHACHA20_BLOCK_SIZE * 4;
- dst += CHACHA20_BLOCK_SIZE * 4;
- state[12] += 4;
- }
-
- if (!bytes)
- return;
-
- kernel_neon_begin();
- while (bytes >= CHACHA20_BLOCK_SIZE) {
- chacha20_block_xor_neon(state, dst, src);
- bytes -= CHACHA20_BLOCK_SIZE;
- src += CHACHA20_BLOCK_SIZE;
- dst += CHACHA20_BLOCK_SIZE;
- state[12]++;
- }
- if (bytes) {
- memcpy(buf, src, bytes);
- chacha20_block_xor_neon(state, buf, buf);
- memcpy(dst, buf, bytes);
- }
- kernel_neon_end();
-}
-
-static int chacha20_neon(struct skcipher_request *req)
-{
- struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
- struct chacha20_ctx *ctx = crypto_skcipher_ctx(tfm);
- struct skcipher_walk walk;
- u32 state[16];
- int err;
-
- if (!may_use_simd() || req->cryptlen <= CHACHA20_BLOCK_SIZE)
- return crypto_chacha20_crypt(req);
-
- err = skcipher_walk_virt(&walk, req, false);
-
- crypto_chacha20_init(state, ctx, walk.iv);
-
- while (walk.nbytes > 0) {
- unsigned int nbytes = walk.nbytes;
-
- if (nbytes < walk.total)
- nbytes = round_down(nbytes, walk.stride);
-
- chacha20_doneon(state, walk.dst.virt.addr, walk.src.virt.addr,
- nbytes);
- err = skcipher_walk_done(&walk, walk.nbytes - nbytes);
- }
-
- return err;
-}
-
-static struct skcipher_alg alg = {
- .base.cra_name = "chacha20",
- .base.cra_driver_name = "chacha20-neon",
- .base.cra_priority = 300,
- .base.cra_blocksize = 1,
- .base.cra_ctxsize = sizeof(struct chacha20_ctx),
- .base.cra_module = THIS_MODULE,
-
- .min_keysize = CHACHA20_KEY_SIZE,
- .max_keysize = CHACHA20_KEY_SIZE,
- .ivsize = CHACHA20_IV_SIZE,
- .chunksize = CHACHA20_BLOCK_SIZE,
- .walksize = 4 * CHACHA20_BLOCK_SIZE,
- .setkey = crypto_chacha20_setkey,
- .encrypt = chacha20_neon,
- .decrypt = chacha20_neon,
-};
-
-static int __init chacha20_simd_mod_init(void)
-{
- if (!(elf_hwcap & HWCAP_ASIMD))
- return -ENODEV;
-
- return crypto_register_skcipher(&alg);
-}
-
-static void __exit chacha20_simd_mod_fini(void)
-{
- crypto_unregister_skcipher(&alg);
-}
-
-module_init(chacha20_simd_mod_init);
-module_exit(chacha20_simd_mod_fini);
-
-MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS_CRYPTO("chacha20");
diff --git a/arch/arm64/crypto/ghash-ce-glue.c b/arch/arm64/crypto/ghash-ce-glue.c
index 1ed227b..bee3027 100644
--- a/arch/arm64/crypto/ghash-ce-glue.c
+++ b/arch/arm64/crypto/ghash-ce-glue.c
@@ -60,6 +60,22 @@ asmlinkage void pmull_ghash_update_p8(int blocks, u64 dg[], const char *src,
struct ghash_key const *k,
const char *head);
+#ifdef CONFIG_CFI_CLANG
+static inline void __cfi_pmull_ghash_update_p64(int blocks, u64 dg[],
+ const char *src, struct ghash_key const *k, const char *head)
+{
+ return pmull_ghash_update_p64(blocks, dg, src, k, head);
+}
+#define pmull_ghash_update_p64 __cfi_pmull_ghash_update_p64
+
+static inline void __cfi_pmull_ghash_update_p8(int blocks, u64 dg[],
+ const char *src, struct ghash_key const *k, const char *head)
+{
+ return pmull_ghash_update_p8(blocks, dg, src, k, head);
+}
+#define pmull_ghash_update_p8 __cfi_pmull_ghash_update_p8
+#endif
+
static void (*pmull_ghash_update)(int blocks, u64 dg[], const char *src,
struct ghash_key const *k,
const char *head);
diff --git a/arch/arm64/crypto/poly1305-armv8.pl b/arch/arm64/crypto/poly1305-armv8.pl
new file mode 100644
index 0000000..cbc980f
--- /dev/null
+++ b/arch/arm64/crypto/poly1305-armv8.pl
@@ -0,0 +1,913 @@
+#!/usr/bin/env perl
+# SPDX-License-Identifier: GPL-1.0+ OR BSD-3-Clause
+#
+# ====================================================================
+# Written by Andy Polyakov, @dot-asm, initially for the OpenSSL
+# project.
+# ====================================================================
+#
+# This module implements Poly1305 hash for ARMv8.
+#
+# June 2015
+#
+# Numbers are cycles per processed byte with poly1305_blocks alone.
+#
+# IALU/gcc-4.9 NEON
+#
+# Apple A7 1.86/+5% 0.72
+# Cortex-A53 2.69/+58% 1.47
+# Cortex-A57 2.70/+7% 1.14
+# Denver 1.64/+50% 1.18(*)
+# X-Gene 2.13/+68% 2.27
+# Mongoose 1.77/+75% 1.12
+# Kryo 2.70/+55% 1.13
+# ThunderX2 1.17/+95% 1.36
+#
+# (*) estimate based on resources availability is less than 1.0,
+# i.e. measured result is worse than expected, presumably binary
+# translator is not almighty;
+
+$flavour=shift;
+$output=shift;
+
+if ($flavour && $flavour ne "void") {
+ $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
+ ( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or
+ ( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate) or
+ die "can't locate arm-xlate.pl";
+
+ open STDOUT,"| \"$^X\" $xlate $flavour $output";
+} else {
+ open STDOUT,">$output";
+}
+
+my ($ctx,$inp,$len,$padbit) = map("x$_",(0..3));
+my ($mac,$nonce)=($inp,$len);
+
+my ($h0,$h1,$h2,$r0,$r1,$s1,$t0,$t1,$d0,$d1,$d2) = map("x$_",(4..14));
+
+$code.=<<___;
+#ifndef __KERNEL__
+# include "arm_arch.h"
+.extern OPENSSL_armcap_P
+#endif
+
+.text
+
+// forward "declarations" are required for Apple
+.globl poly1305_blocks
+.globl poly1305_emit
+
+.globl poly1305_init
+.type poly1305_init,%function
+.align 5
+poly1305_init:
+ cmp $inp,xzr
+ stp xzr,xzr,[$ctx] // zero hash value
+ stp xzr,xzr,[$ctx,#16] // [along with is_base2_26]
+
+ csel x0,xzr,x0,eq
+ b.eq .Lno_key
+
+#ifndef __KERNEL__
+ adrp x17,OPENSSL_armcap_P
+ ldr w17,[x17,#:lo12:OPENSSL_armcap_P]
+#endif
+
+ ldp $r0,$r1,[$inp] // load key
+ mov $s1,#0xfffffffc0fffffff
+ movk $s1,#0x0fff,lsl#48
+#ifdef __AARCH64EB__
+ rev $r0,$r0 // flip bytes
+ rev $r1,$r1
+#endif
+ and $r0,$r0,$s1 // &=0ffffffc0fffffff
+ and $s1,$s1,#-4
+ and $r1,$r1,$s1 // &=0ffffffc0ffffffc
+ mov w#$s1,#-1
+ stp $r0,$r1,[$ctx,#32] // save key value
+ str w#$s1,[$ctx,#48] // impossible key power value
+
+#ifndef __KERNEL__
+ tst w17,#ARMV7_NEON
+
+ adr $d0,.Lpoly1305_blocks
+ adr $r0,.Lpoly1305_blocks_neon
+ adr $d1,.Lpoly1305_emit
+
+ csel $d0,$d0,$r0,eq
+
+# ifdef __ILP32__
+ stp w#$d0,w#$d1,[$len]
+# else
+ stp $d0,$d1,[$len]
+# endif
+#endif
+ mov x0,#1
+.Lno_key:
+ ret
+.size poly1305_init,.-poly1305_init
+
+.type poly1305_blocks,%function
+.align 5
+poly1305_blocks:
+.Lpoly1305_blocks:
+ ands $len,$len,#-16
+ b.eq .Lno_data
+
+ ldp $h0,$h1,[$ctx] // load hash value
+ ldp $h2,x17,[$ctx,#16] // [along with is_base2_26]
+ ldp $r0,$r1,[$ctx,#32] // load key value
+
+#ifdef __AARCH64EB__
+ lsr $d0,$h0,#32
+ mov w#$d1,w#$h0
+ lsr $d2,$h1,#32
+ mov w15,w#$h1
+ lsr x16,$h2,#32
+#else
+ mov w#$d0,w#$h0
+ lsr $d1,$h0,#32
+ mov w#$d2,w#$h1
+ lsr x15,$h1,#32
+ mov w16,w#$h2
+#endif
+
+ add $d0,$d0,$d1,lsl#26 // base 2^26 -> base 2^64
+ lsr $d1,$d2,#12
+ adds $d0,$d0,$d2,lsl#52
+ add $d1,$d1,x15,lsl#14
+ adc $d1,$d1,xzr
+ lsr $d2,x16,#24
+ adds $d1,$d1,x16,lsl#40
+ adc $d2,$d2,xzr
+
+ cmp x17,#0 // is_base2_26?
+ add $s1,$r1,$r1,lsr#2 // s1 = r1 + (r1 >> 2)
+ csel $h0,$h0,$d0,eq // choose between radixes
+ csel $h1,$h1,$d1,eq
+ csel $h2,$h2,$d2,eq
+
+.Loop:
+ ldp $t0,$t1,[$inp],#16 // load input
+ sub $len,$len,#16
+#ifdef __AARCH64EB__
+ rev $t0,$t0
+ rev $t1,$t1
+#endif
+ adds $h0,$h0,$t0 // accumulate input
+ adcs $h1,$h1,$t1
+
+ mul $d0,$h0,$r0 // h0*r0
+ adc $h2,$h2,$padbit
+ umulh $d1,$h0,$r0
+
+ mul $t0,$h1,$s1 // h1*5*r1
+ umulh $t1,$h1,$s1
+
+ adds $d0,$d0,$t0
+ mul $t0,$h0,$r1 // h0*r1
+ adc $d1,$d1,$t1
+ umulh $d2,$h0,$r1
+
+ adds $d1,$d1,$t0
+ mul $t0,$h1,$r0 // h1*r0
+ adc $d2,$d2,xzr
+ umulh $t1,$h1,$r0
+
+ adds $d1,$d1,$t0
+ mul $t0,$h2,$s1 // h2*5*r1
+ adc $d2,$d2,$t1
+ mul $t1,$h2,$r0 // h2*r0
+
+ adds $d1,$d1,$t0
+ adc $d2,$d2,$t1
+
+ and $t0,$d2,#-4 // final reduction
+ and $h2,$d2,#3
+ add $t0,$t0,$d2,lsr#2
+ adds $h0,$d0,$t0
+ adcs $h1,$d1,xzr
+ adc $h2,$h2,xzr
+
+ cbnz $len,.Loop
+
+ stp $h0,$h1,[$ctx] // store hash value
+ stp $h2,xzr,[$ctx,#16] // [and clear is_base2_26]
+
+.Lno_data:
+ ret
+.size poly1305_blocks,.-poly1305_blocks
+
+.type poly1305_emit,%function
+.align 5
+poly1305_emit:
+.Lpoly1305_emit:
+ ldp $h0,$h1,[$ctx] // load hash base 2^64
+ ldp $h2,$r0,[$ctx,#16] // [along with is_base2_26]
+ ldp $t0,$t1,[$nonce] // load nonce
+
+#ifdef __AARCH64EB__
+ lsr $d0,$h0,#32
+ mov w#$d1,w#$h0
+ lsr $d2,$h1,#32
+ mov w15,w#$h1
+ lsr x16,$h2,#32
+#else
+ mov w#$d0,w#$h0
+ lsr $d1,$h0,#32
+ mov w#$d2,w#$h1
+ lsr x15,$h1,#32
+ mov w16,w#$h2
+#endif
+
+ add $d0,$d0,$d1,lsl#26 // base 2^26 -> base 2^64
+ lsr $d1,$d2,#12
+ adds $d0,$d0,$d2,lsl#52
+ add $d1,$d1,x15,lsl#14
+ adc $d1,$d1,xzr
+ lsr $d2,x16,#24
+ adds $d1,$d1,x16,lsl#40
+ adc $d2,$d2,xzr
+
+ cmp $r0,#0 // is_base2_26?
+ csel $h0,$h0,$d0,eq // choose between radixes
+ csel $h1,$h1,$d1,eq
+ csel $h2,$h2,$d2,eq
+
+ adds $d0,$h0,#5 // compare to modulus
+ adcs $d1,$h1,xzr
+ adc $d2,$h2,xzr
+
+ tst $d2,#-4 // see if it's carried/borrowed
+
+ csel $h0,$h0,$d0,eq
+ csel $h1,$h1,$d1,eq
+
+#ifdef __AARCH64EB__
+ ror $t0,$t0,#32 // flip nonce words
+ ror $t1,$t1,#32
+#endif
+ adds $h0,$h0,$t0 // accumulate nonce
+ adc $h1,$h1,$t1
+#ifdef __AARCH64EB__
+ rev $h0,$h0 // flip output bytes
+ rev $h1,$h1
+#endif
+ stp $h0,$h1,[$mac] // write result
+
+ ret
+.size poly1305_emit,.-poly1305_emit
+___
+my ($R0,$R1,$S1,$R2,$S2,$R3,$S3,$R4,$S4) = map("v$_.4s",(0..8));
+my ($IN01_0,$IN01_1,$IN01_2,$IN01_3,$IN01_4) = map("v$_.2s",(9..13));
+my ($IN23_0,$IN23_1,$IN23_2,$IN23_3,$IN23_4) = map("v$_.2s",(14..18));
+my ($ACC0,$ACC1,$ACC2,$ACC3,$ACC4) = map("v$_.2d",(19..23));
+my ($H0,$H1,$H2,$H3,$H4) = map("v$_.2s",(24..28));
+my ($T0,$T1,$MASK) = map("v$_",(29..31));
+
+my ($in2,$zeros)=("x16","x17");
+my $is_base2_26 = $zeros; # borrow
+
+$code.=<<___;
+.type poly1305_mult,%function
+.align 5
+poly1305_mult:
+ mul $d0,$h0,$r0 // h0*r0
+ umulh $d1,$h0,$r0
+
+ mul $t0,$h1,$s1 // h1*5*r1
+ umulh $t1,$h1,$s1
+
+ adds $d0,$d0,$t0
+ mul $t0,$h0,$r1 // h0*r1
+ adc $d1,$d1,$t1
+ umulh $d2,$h0,$r1
+
+ adds $d1,$d1,$t0
+ mul $t0,$h1,$r0 // h1*r0
+ adc $d2,$d2,xzr
+ umulh $t1,$h1,$r0
+
+ adds $d1,$d1,$t0
+ mul $t0,$h2,$s1 // h2*5*r1
+ adc $d2,$d2,$t1
+ mul $t1,$h2,$r0 // h2*r0
+
+ adds $d1,$d1,$t0
+ adc $d2,$d2,$t1
+
+ and $t0,$d2,#-4 // final reduction
+ and $h2,$d2,#3
+ add $t0,$t0,$d2,lsr#2
+ adds $h0,$d0,$t0
+ adcs $h1,$d1,xzr
+ adc $h2,$h2,xzr
+
+ ret
+.size poly1305_mult,.-poly1305_mult
+
+.type poly1305_splat,%function
+.align 4
+poly1305_splat:
+ and x12,$h0,#0x03ffffff // base 2^64 -> base 2^26
+ ubfx x13,$h0,#26,#26
+ extr x14,$h1,$h0,#52
+ and x14,x14,#0x03ffffff
+ ubfx x15,$h1,#14,#26
+ extr x16,$h2,$h1,#40
+
+ str w12,[$ctx,#16*0] // r0
+ add w12,w13,w13,lsl#2 // r1*5
+ str w13,[$ctx,#16*1] // r1
+ add w13,w14,w14,lsl#2 // r2*5
+ str w12,[$ctx,#16*2] // s1
+ str w14,[$ctx,#16*3] // r2
+ add w14,w15,w15,lsl#2 // r3*5
+ str w13,[$ctx,#16*4] // s2
+ str w15,[$ctx,#16*5] // r3
+ add w15,w16,w16,lsl#2 // r4*5
+ str w14,[$ctx,#16*6] // s3
+ str w16,[$ctx,#16*7] // r4
+ str w15,[$ctx,#16*8] // s4
+
+ ret
+.size poly1305_splat,.-poly1305_splat
+
+#ifdef __KERNEL__
+.globl poly1305_blocks_neon
+#endif
+.type poly1305_blocks_neon,%function
+.align 5
+poly1305_blocks_neon:
+.Lpoly1305_blocks_neon:
+ ldr $is_base2_26,[$ctx,#24]
+ cmp $len,#128
+ b.lo .Lpoly1305_blocks
+
+ .inst 0xd503233f // paciasp
+ stp x29,x30,[sp,#-80]!
+ add x29,sp,#0
+
+ stp d8,d9,[sp,#16] // meet ABI requirements
+ stp d10,d11,[sp,#32]
+ stp d12,d13,[sp,#48]
+ stp d14,d15,[sp,#64]
+
+ cbz $is_base2_26,.Lbase2_64_neon
+
+ ldp w10,w11,[$ctx] // load hash value base 2^26
+ ldp w12,w13,[$ctx,#8]
+ ldr w14,[$ctx,#16]
+
+ tst $len,#31
+ b.eq .Leven_neon
+
+ ldp $r0,$r1,[$ctx,#32] // load key value
+
+ add $h0,x10,x11,lsl#26 // base 2^26 -> base 2^64
+ lsr $h1,x12,#12
+ adds $h0,$h0,x12,lsl#52
+ add $h1,$h1,x13,lsl#14
+ adc $h1,$h1,xzr
+ lsr $h2,x14,#24
+ adds $h1,$h1,x14,lsl#40
+ adc $d2,$h2,xzr // can be partially reduced...
+
+ ldp $d0,$d1,[$inp],#16 // load input
+ sub $len,$len,#16
+ add $s1,$r1,$r1,lsr#2 // s1 = r1 + (r1 >> 2)
+
+#ifdef __AARCH64EB__
+ rev $d0,$d0
+ rev $d1,$d1
+#endif
+ adds $h0,$h0,$d0 // accumulate input
+ adcs $h1,$h1,$d1
+ adc $h2,$h2,$padbit
+
+ bl poly1305_mult
+
+ and x10,$h0,#0x03ffffff // base 2^64 -> base 2^26
+ ubfx x11,$h0,#26,#26
+ extr x12,$h1,$h0,#52
+ and x12,x12,#0x03ffffff
+ ubfx x13,$h1,#14,#26
+ extr x14,$h2,$h1,#40
+
+ b .Leven_neon
+
+.align 4
+.Lbase2_64_neon:
+ ldp $r0,$r1,[$ctx,#32] // load key value
+
+ ldp $h0,$h1,[$ctx] // load hash value base 2^64
+ ldr $h2,[$ctx,#16]
+
+ tst $len,#31
+ b.eq .Linit_neon
+
+ ldp $d0,$d1,[$inp],#16 // load input
+ sub $len,$len,#16
+ add $s1,$r1,$r1,lsr#2 // s1 = r1 + (r1 >> 2)
+#ifdef __AARCH64EB__
+ rev $d0,$d0
+ rev $d1,$d1
+#endif
+ adds $h0,$h0,$d0 // accumulate input
+ adcs $h1,$h1,$d1
+ adc $h2,$h2,$padbit
+
+ bl poly1305_mult
+
+.Linit_neon:
+ ldr w17,[$ctx,#48] // first table element
+ and x10,$h0,#0x03ffffff // base 2^64 -> base 2^26
+ ubfx x11,$h0,#26,#26
+ extr x12,$h1,$h0,#52
+ and x12,x12,#0x03ffffff
+ ubfx x13,$h1,#14,#26
+ extr x14,$h2,$h1,#40
+
+ cmp w17,#-1 // is value impossible?
+ b.ne .Leven_neon
+
+ fmov ${H0},x10
+ fmov ${H1},x11
+ fmov ${H2},x12
+ fmov ${H3},x13
+ fmov ${H4},x14
+
+ ////////////////////////////////// initialize r^n table
+ mov $h0,$r0 // r^1
+ add $s1,$r1,$r1,lsr#2 // s1 = r1 + (r1 >> 2)
+ mov $h1,$r1
+ mov $h2,xzr
+ add $ctx,$ctx,#48+12
+ bl poly1305_splat
+
+ bl poly1305_mult // r^2
+ sub $ctx,$ctx,#4
+ bl poly1305_splat
+
+ bl poly1305_mult // r^3
+ sub $ctx,$ctx,#4
+ bl poly1305_splat
+
+ bl poly1305_mult // r^4
+ sub $ctx,$ctx,#4
+ bl poly1305_splat
+ sub $ctx,$ctx,#48 // restore original $ctx
+ b .Ldo_neon
+
+.align 4
+.Leven_neon:
+ fmov ${H0},x10
+ fmov ${H1},x11
+ fmov ${H2},x12
+ fmov ${H3},x13
+ fmov ${H4},x14
+
+.Ldo_neon:
+ ldp x8,x12,[$inp,#32] // inp[2:3]
+ subs $len,$len,#64
+ ldp x9,x13,[$inp,#48]
+ add $in2,$inp,#96
+ adr $zeros,.Lzeros
+
+ lsl $padbit,$padbit,#24
+ add x15,$ctx,#48
+
+#ifdef __AARCH64EB__
+ rev x8,x8
+ rev x12,x12
+ rev x9,x9
+ rev x13,x13
+#endif
+ and x4,x8,#0x03ffffff // base 2^64 -> base 2^26
+ and x5,x9,#0x03ffffff
+ ubfx x6,x8,#26,#26
+ ubfx x7,x9,#26,#26
+ add x4,x4,x5,lsl#32 // bfi x4,x5,#32,#32
+ extr x8,x12,x8,#52
+ extr x9,x13,x9,#52
+ add x6,x6,x7,lsl#32 // bfi x6,x7,#32,#32
+ fmov $IN23_0,x4
+ and x8,x8,#0x03ffffff
+ and x9,x9,#0x03ffffff
+ ubfx x10,x12,#14,#26
+ ubfx x11,x13,#14,#26
+ add x12,$padbit,x12,lsr#40
+ add x13,$padbit,x13,lsr#40
+ add x8,x8,x9,lsl#32 // bfi x8,x9,#32,#32
+ fmov $IN23_1,x6
+ add x10,x10,x11,lsl#32 // bfi x10,x11,#32,#32
+ add x12,x12,x13,lsl#32 // bfi x12,x13,#32,#32
+ fmov $IN23_2,x8
+ fmov $IN23_3,x10
+ fmov $IN23_4,x12
+
+ ldp x8,x12,[$inp],#16 // inp[0:1]
+ ldp x9,x13,[$inp],#48
+
+ ld1 {$R0,$R1,$S1,$R2},[x15],#64
+ ld1 {$S2,$R3,$S3,$R4},[x15],#64
+ ld1 {$S4},[x15]
+
+#ifdef __AARCH64EB__
+ rev x8,x8
+ rev x12,x12
+ rev x9,x9
+ rev x13,x13
+#endif
+ and x4,x8,#0x03ffffff // base 2^64 -> base 2^26
+ and x5,x9,#0x03ffffff
+ ubfx x6,x8,#26,#26
+ ubfx x7,x9,#26,#26
+ add x4,x4,x5,lsl#32 // bfi x4,x5,#32,#32
+ extr x8,x12,x8,#52
+ extr x9,x13,x9,#52
+ add x6,x6,x7,lsl#32 // bfi x6,x7,#32,#32
+ fmov $IN01_0,x4
+ and x8,x8,#0x03ffffff
+ and x9,x9,#0x03ffffff
+ ubfx x10,x12,#14,#26
+ ubfx x11,x13,#14,#26
+ add x12,$padbit,x12,lsr#40
+ add x13,$padbit,x13,lsr#40
+ add x8,x8,x9,lsl#32 // bfi x8,x9,#32,#32
+ fmov $IN01_1,x6
+ add x10,x10,x11,lsl#32 // bfi x10,x11,#32,#32
+ add x12,x12,x13,lsl#32 // bfi x12,x13,#32,#32
+ movi $MASK.2d,#-1
+ fmov $IN01_2,x8
+ fmov $IN01_3,x10
+ fmov $IN01_4,x12
+ ushr $MASK.2d,$MASK.2d,#38
+
+ b.ls .Lskip_loop
+
+.align 4
+.Loop_neon:
+ ////////////////////////////////////////////////////////////////
+ // ((inp[0]*r^4+inp[2]*r^2+inp[4])*r^4+inp[6]*r^2
+ // ((inp[1]*r^4+inp[3]*r^2+inp[5])*r^3+inp[7]*r
+ // \___________________/
+ // ((inp[0]*r^4+inp[2]*r^2+inp[4])*r^4+inp[6]*r^2+inp[8])*r^2
+ // ((inp[1]*r^4+inp[3]*r^2+inp[5])*r^4+inp[7]*r^2+inp[9])*r
+ // \___________________/ \____________________/
+ //
+ // Note that we start with inp[2:3]*r^2. This is because it
+ // doesn't depend on reduction in previous iteration.
+ ////////////////////////////////////////////////////////////////
+ // d4 = h0*r4 + h1*r3 + h2*r2 + h3*r1 + h4*r0
+ // d3 = h0*r3 + h1*r2 + h2*r1 + h3*r0 + h4*5*r4
+ // d2 = h0*r2 + h1*r1 + h2*r0 + h3*5*r4 + h4*5*r3
+ // d1 = h0*r1 + h1*r0 + h2*5*r4 + h3*5*r3 + h4*5*r2
+ // d0 = h0*r0 + h1*5*r4 + h2*5*r3 + h3*5*r2 + h4*5*r1
+
+ subs $len,$len,#64
+ umull $ACC4,$IN23_0,${R4}[2]
+ csel $in2,$zeros,$in2,lo
+ umull $ACC3,$IN23_0,${R3}[2]
+ umull $ACC2,$IN23_0,${R2}[2]
+ ldp x8,x12,[$in2],#16 // inp[2:3] (or zero)
+ umull $ACC1,$IN23_0,${R1}[2]
+ ldp x9,x13,[$in2],#48
+ umull $ACC0,$IN23_0,${R0}[2]
+#ifdef __AARCH64EB__
+ rev x8,x8
+ rev x12,x12
+ rev x9,x9
+ rev x13,x13
+#endif
+
+ umlal $ACC4,$IN23_1,${R3}[2]
+ and x4,x8,#0x03ffffff // base 2^64 -> base 2^26
+ umlal $ACC3,$IN23_1,${R2}[2]
+ and x5,x9,#0x03ffffff
+ umlal $ACC2,$IN23_1,${R1}[2]
+ ubfx x6,x8,#26,#26
+ umlal $ACC1,$IN23_1,${R0}[2]
+ ubfx x7,x9,#26,#26
+ umlal $ACC0,$IN23_1,${S4}[2]
+ add x4,x4,x5,lsl#32 // bfi x4,x5,#32,#32
+
+ umlal $ACC4,$IN23_2,${R2}[2]
+ extr x8,x12,x8,#52
+ umlal $ACC3,$IN23_2,${R1}[2]
+ extr x9,x13,x9,#52
+ umlal $ACC2,$IN23_2,${R0}[2]
+ add x6,x6,x7,lsl#32 // bfi x6,x7,#32,#32
+ umlal $ACC1,$IN23_2,${S4}[2]
+ fmov $IN23_0,x4
+ umlal $ACC0,$IN23_2,${S3}[2]
+ and x8,x8,#0x03ffffff
+
+ umlal $ACC4,$IN23_3,${R1}[2]
+ and x9,x9,#0x03ffffff
+ umlal $ACC3,$IN23_3,${R0}[2]
+ ubfx x10,x12,#14,#26
+ umlal $ACC2,$IN23_3,${S4}[2]
+ ubfx x11,x13,#14,#26
+ umlal $ACC1,$IN23_3,${S3}[2]
+ add x8,x8,x9,lsl#32 // bfi x8,x9,#32,#32
+ umlal $ACC0,$IN23_3,${S2}[2]
+ fmov $IN23_1,x6
+
+ add $IN01_2,$IN01_2,$H2
+ add x12,$padbit,x12,lsr#40
+ umlal $ACC4,$IN23_4,${R0}[2]
+ add x13,$padbit,x13,lsr#40
+ umlal $ACC3,$IN23_4,${S4}[2]
+ add x10,x10,x11,lsl#32 // bfi x10,x11,#32,#32
+ umlal $ACC2,$IN23_4,${S3}[2]
+ add x12,x12,x13,lsl#32 // bfi x12,x13,#32,#32
+ umlal $ACC1,$IN23_4,${S2}[2]
+ fmov $IN23_2,x8
+ umlal $ACC0,$IN23_4,${S1}[2]
+ fmov $IN23_3,x10
+
+ ////////////////////////////////////////////////////////////////
+ // (hash+inp[0:1])*r^4 and accumulate
+
+ add $IN01_0,$IN01_0,$H0
+ fmov $IN23_4,x12
+ umlal $ACC3,$IN01_2,${R1}[0]
+ ldp x8,x12,[$inp],#16 // inp[0:1]
+ umlal $ACC0,$IN01_2,${S3}[0]
+ ldp x9,x13,[$inp],#48
+ umlal $ACC4,$IN01_2,${R2}[0]
+ umlal $ACC1,$IN01_2,${S4}[0]
+ umlal $ACC2,$IN01_2,${R0}[0]
+#ifdef __AARCH64EB__
+ rev x8,x8
+ rev x12,x12
+ rev x9,x9
+ rev x13,x13
+#endif
+
+ add $IN01_1,$IN01_1,$H1
+ umlal $ACC3,$IN01_0,${R3}[0]
+ umlal $ACC4,$IN01_0,${R4}[0]
+ and x4,x8,#0x03ffffff // base 2^64 -> base 2^26
+ umlal $ACC2,$IN01_0,${R2}[0]
+ and x5,x9,#0x03ffffff
+ umlal $ACC0,$IN01_0,${R0}[0]
+ ubfx x6,x8,#26,#26
+ umlal $ACC1,$IN01_0,${R1}[0]
+ ubfx x7,x9,#26,#26
+
+ add $IN01_3,$IN01_3,$H3
+ add x4,x4,x5,lsl#32 // bfi x4,x5,#32,#32
+ umlal $ACC3,$IN01_1,${R2}[0]
+ extr x8,x12,x8,#52
+ umlal $ACC4,$IN01_1,${R3}[0]
+ extr x9,x13,x9,#52
+ umlal $ACC0,$IN01_1,${S4}[0]
+ add x6,x6,x7,lsl#32 // bfi x6,x7,#32,#32
+ umlal $ACC2,$IN01_1,${R1}[0]
+ fmov $IN01_0,x4
+ umlal $ACC1,$IN01_1,${R0}[0]
+ and x8,x8,#0x03ffffff
+
+ add $IN01_4,$IN01_4,$H4
+ and x9,x9,#0x03ffffff
+ umlal $ACC3,$IN01_3,${R0}[0]
+ ubfx x10,x12,#14,#26
+ umlal $ACC0,$IN01_3,${S2}[0]
+ ubfx x11,x13,#14,#26
+ umlal $ACC4,$IN01_3,${R1}[0]
+ add x8,x8,x9,lsl#32 // bfi x8,x9,#32,#32
+ umlal $ACC1,$IN01_3,${S3}[0]
+ fmov $IN01_1,x6
+ umlal $ACC2,$IN01_3,${S4}[0]
+ add x12,$padbit,x12,lsr#40
+
+ umlal $ACC3,$IN01_4,${S4}[0]
+ add x13,$padbit,x13,lsr#40
+ umlal $ACC0,$IN01_4,${S1}[0]
+ add x10,x10,x11,lsl#32 // bfi x10,x11,#32,#32
+ umlal $ACC4,$IN01_4,${R0}[0]
+ add x12,x12,x13,lsl#32 // bfi x12,x13,#32,#32
+ umlal $ACC1,$IN01_4,${S2}[0]
+ fmov $IN01_2,x8
+ umlal $ACC2,$IN01_4,${S3}[0]
+ fmov $IN01_3,x10
+ fmov $IN01_4,x12
+
+ /////////////////////////////////////////////////////////////////
+ // lazy reduction as discussed in "NEON crypto" by D.J. Bernstein
+ // and P. Schwabe
+ //
+ // [see discussion in poly1305-armv4 module]
+
+ ushr $T0.2d,$ACC3,#26
+ xtn $H3,$ACC3
+ ushr $T1.2d,$ACC0,#26
+ and $ACC0,$ACC0,$MASK.2d
+ add $ACC4,$ACC4,$T0.2d // h3 -> h4
+ bic $H3,#0xfc,lsl#24 // &=0x03ffffff
+ add $ACC1,$ACC1,$T1.2d // h0 -> h1
+
+ ushr $T0.2d,$ACC4,#26
+ xtn $H4,$ACC4
+ ushr $T1.2d,$ACC1,#26
+ xtn $H1,$ACC1
+ bic $H4,#0xfc,lsl#24
+ add $ACC2,$ACC2,$T1.2d // h1 -> h2
+
+ add $ACC0,$ACC0,$T0.2d
+ shl $T0.2d,$T0.2d,#2
+ shrn $T1.2s,$ACC2,#26
+ xtn $H2,$ACC2
+ add $ACC0,$ACC0,$T0.2d // h4 -> h0
+ bic $H1,#0xfc,lsl#24
+ add $H3,$H3,$T1.2s // h2 -> h3
+ bic $H2,#0xfc,lsl#24
+
+ shrn $T0.2s,$ACC0,#26
+ xtn $H0,$ACC0
+ ushr $T1.2s,$H3,#26
+ bic $H3,#0xfc,lsl#24
+ bic $H0,#0xfc,lsl#24
+ add $H1,$H1,$T0.2s // h0 -> h1
+ add $H4,$H4,$T1.2s // h3 -> h4
+
+ b.hi .Loop_neon
+
+.Lskip_loop:
+ dup $IN23_2,${IN23_2}[0]
+ add $IN01_2,$IN01_2,$H2
+
+ ////////////////////////////////////////////////////////////////
+ // multiply (inp[0:1]+hash) or inp[2:3] by r^2:r^1
+
+ adds $len,$len,#32
+ b.ne .Long_tail
+
+ dup $IN23_2,${IN01_2}[0]
+ add $IN23_0,$IN01_0,$H0
+ add $IN23_3,$IN01_3,$H3
+ add $IN23_1,$IN01_1,$H1
+ add $IN23_4,$IN01_4,$H4
+
+.Long_tail:
+ dup $IN23_0,${IN23_0}[0]
+ umull2 $ACC0,$IN23_2,${S3}
+ umull2 $ACC3,$IN23_2,${R1}
+ umull2 $ACC4,$IN23_2,${R2}
+ umull2 $ACC2,$IN23_2,${R0}
+ umull2 $ACC1,$IN23_2,${S4}
+
+ dup $IN23_1,${IN23_1}[0]
+ umlal2 $ACC0,$IN23_0,${R0}
+ umlal2 $ACC2,$IN23_0,${R2}
+ umlal2 $ACC3,$IN23_0,${R3}
+ umlal2 $ACC4,$IN23_0,${R4}
+ umlal2 $ACC1,$IN23_0,${R1}
+
+ dup $IN23_3,${IN23_3}[0]
+ umlal2 $ACC0,$IN23_1,${S4}
+ umlal2 $ACC3,$IN23_1,${R2}
+ umlal2 $ACC2,$IN23_1,${R1}
+ umlal2 $ACC4,$IN23_1,${R3}
+ umlal2 $ACC1,$IN23_1,${R0}
+
+ dup $IN23_4,${IN23_4}[0]
+ umlal2 $ACC3,$IN23_3,${R0}
+ umlal2 $ACC4,$IN23_3,${R1}
+ umlal2 $ACC0,$IN23_3,${S2}
+ umlal2 $ACC1,$IN23_3,${S3}
+ umlal2 $ACC2,$IN23_3,${S4}
+
+ umlal2 $ACC3,$IN23_4,${S4}
+ umlal2 $ACC0,$IN23_4,${S1}
+ umlal2 $ACC4,$IN23_4,${R0}
+ umlal2 $ACC1,$IN23_4,${S2}
+ umlal2 $ACC2,$IN23_4,${S3}
+
+ b.eq .Lshort_tail
+
+ ////////////////////////////////////////////////////////////////
+ // (hash+inp[0:1])*r^4:r^3 and accumulate
+
+ add $IN01_0,$IN01_0,$H0
+ umlal $ACC3,$IN01_2,${R1}
+ umlal $ACC0,$IN01_2,${S3}
+ umlal $ACC4,$IN01_2,${R2}
+ umlal $ACC1,$IN01_2,${S4}
+ umlal $ACC2,$IN01_2,${R0}
+
+ add $IN01_1,$IN01_1,$H1
+ umlal $ACC3,$IN01_0,${R3}
+ umlal $ACC0,$IN01_0,${R0}
+ umlal $ACC4,$IN01_0,${R4}
+ umlal $ACC1,$IN01_0,${R1}
+ umlal $ACC2,$IN01_0,${R2}
+
+ add $IN01_3,$IN01_3,$H3
+ umlal $ACC3,$IN01_1,${R2}
+ umlal $ACC0,$IN01_1,${S4}
+ umlal $ACC4,$IN01_1,${R3}
+ umlal $ACC1,$IN01_1,${R0}
+ umlal $ACC2,$IN01_1,${R1}
+
+ add $IN01_4,$IN01_4,$H4
+ umlal $ACC3,$IN01_3,${R0}
+ umlal $ACC0,$IN01_3,${S2}
+ umlal $ACC4,$IN01_3,${R1}
+ umlal $ACC1,$IN01_3,${S3}
+ umlal $ACC2,$IN01_3,${S4}
+
+ umlal $ACC3,$IN01_4,${S4}
+ umlal $ACC0,$IN01_4,${S1}
+ umlal $ACC4,$IN01_4,${R0}
+ umlal $ACC1,$IN01_4,${S2}
+ umlal $ACC2,$IN01_4,${S3}
+
+.Lshort_tail:
+ ////////////////////////////////////////////////////////////////
+ // horizontal add
+
+ addp $ACC3,$ACC3,$ACC3
+ ldp d8,d9,[sp,#16] // meet ABI requirements
+ addp $ACC0,$ACC0,$ACC0
+ ldp d10,d11,[sp,#32]
+ addp $ACC4,$ACC4,$ACC4
+ ldp d12,d13,[sp,#48]
+ addp $ACC1,$ACC1,$ACC1
+ ldp d14,d15,[sp,#64]
+ addp $ACC2,$ACC2,$ACC2
+ ldr x30,[sp,#8]
+
+ ////////////////////////////////////////////////////////////////
+ // lazy reduction, but without narrowing
+
+ ushr $T0.2d,$ACC3,#26
+ and $ACC3,$ACC3,$MASK.2d
+ ushr $T1.2d,$ACC0,#26
+ and $ACC0,$ACC0,$MASK.2d
+
+ add $ACC4,$ACC4,$T0.2d // h3 -> h4
+ add $ACC1,$ACC1,$T1.2d // h0 -> h1
+
+ ushr $T0.2d,$ACC4,#26
+ and $ACC4,$ACC4,$MASK.2d
+ ushr $T1.2d,$ACC1,#26
+ and $ACC1,$ACC1,$MASK.2d
+ add $ACC2,$ACC2,$T1.2d // h1 -> h2
+
+ add $ACC0,$ACC0,$T0.2d
+ shl $T0.2d,$T0.2d,#2
+ ushr $T1.2d,$ACC2,#26
+ and $ACC2,$ACC2,$MASK.2d
+ add $ACC0,$ACC0,$T0.2d // h4 -> h0
+ add $ACC3,$ACC3,$T1.2d // h2 -> h3
+
+ ushr $T0.2d,$ACC0,#26
+ and $ACC0,$ACC0,$MASK.2d
+ ushr $T1.2d,$ACC3,#26
+ and $ACC3,$ACC3,$MASK.2d
+ add $ACC1,$ACC1,$T0.2d // h0 -> h1
+ add $ACC4,$ACC4,$T1.2d // h3 -> h4
+
+ ////////////////////////////////////////////////////////////////
+ // write the result, can be partially reduced
+
+ st4 {$ACC0,$ACC1,$ACC2,$ACC3}[0],[$ctx],#16
+ mov x4,#1
+ st1 {$ACC4}[0],[$ctx]
+ str x4,[$ctx,#8] // set is_base2_26
+
+ ldr x29,[sp],#80
+ .inst 0xd50323bf // autiasp
+ ret
+.size poly1305_blocks_neon,.-poly1305_blocks_neon
+
+.align 5
+.Lzeros:
+.long 0,0,0,0,0,0,0,0
+.asciz "Poly1305 for ARMv8, CRYPTOGAMS by \@dot-asm"
+.align 2
+#if !defined(__KERNEL__) && !defined(_WIN64)
+.comm OPENSSL_armcap_P,4,4
+.hidden OPENSSL_armcap_P
+#endif
+___
+
+foreach (split("\n",$code)) {
+ s/\b(shrn\s+v[0-9]+)\.[24]d/$1.2s/ or
+ s/\b(fmov\s+)v([0-9]+)[^,]*,\s*x([0-9]+)/$1d$2,x$3/ or
+ (m/\bdup\b/ and (s/\.[24]s/.2d/g or 1)) or
+ (m/\b(eor|and)/ and (s/\.[248][sdh]/.16b/g or 1)) or
+ (m/\bum(ul|la)l\b/ and (s/\.4s/.2s/g or 1)) or
+ (m/\bum(ul|la)l2\b/ and (s/\.2s/.4s/g or 1)) or
+ (m/\bst[1-4]\s+{[^}]+}\[/ and (s/\.[24]d/.s/g or 1));
+
+ s/\.[124]([sd])\[/.$1\[/;
+ s/w#x([0-9]+)/w$1/g;
+
+ print $_,"\n";
+}
+close STDOUT;
diff --git a/arch/arm64/crypto/poly1305-core.S_shipped b/arch/arm64/crypto/poly1305-core.S_shipped
new file mode 100644
index 0000000..fb2822a
--- /dev/null
+++ b/arch/arm64/crypto/poly1305-core.S_shipped
@@ -0,0 +1,835 @@
+#ifndef __KERNEL__
+# include "arm_arch.h"
+.extern OPENSSL_armcap_P
+#endif
+
+.text
+
+// forward "declarations" are required for Apple
+.globl poly1305_blocks
+.globl poly1305_emit
+
+.globl poly1305_init
+.type poly1305_init,%function
+.align 5
+poly1305_init:
+ cmp x1,xzr
+ stp xzr,xzr,[x0] // zero hash value
+ stp xzr,xzr,[x0,#16] // [along with is_base2_26]
+
+ csel x0,xzr,x0,eq
+ b.eq .Lno_key
+
+#ifndef __KERNEL__
+ adrp x17,OPENSSL_armcap_P
+ ldr w17,[x17,#:lo12:OPENSSL_armcap_P]
+#endif
+
+ ldp x7,x8,[x1] // load key
+ mov x9,#0xfffffffc0fffffff
+ movk x9,#0x0fff,lsl#48
+#ifdef __AARCH64EB__
+ rev x7,x7 // flip bytes
+ rev x8,x8
+#endif
+ and x7,x7,x9 // &=0ffffffc0fffffff
+ and x9,x9,#-4
+ and x8,x8,x9 // &=0ffffffc0ffffffc
+ mov w9,#-1
+ stp x7,x8,[x0,#32] // save key value
+ str w9,[x0,#48] // impossible key power value
+
+#ifndef __KERNEL__
+ tst w17,#ARMV7_NEON
+
+ adr x12,.Lpoly1305_blocks
+ adr x7,.Lpoly1305_blocks_neon
+ adr x13,.Lpoly1305_emit
+
+ csel x12,x12,x7,eq
+
+# ifdef __ILP32__
+ stp w12,w13,[x2]
+# else
+ stp x12,x13,[x2]
+# endif
+#endif
+ mov x0,#1
+.Lno_key:
+ ret
+.size poly1305_init,.-poly1305_init
+
+.type poly1305_blocks,%function
+.align 5
+poly1305_blocks:
+.Lpoly1305_blocks:
+ ands x2,x2,#-16
+ b.eq .Lno_data
+
+ ldp x4,x5,[x0] // load hash value
+ ldp x6,x17,[x0,#16] // [along with is_base2_26]
+ ldp x7,x8,[x0,#32] // load key value
+
+#ifdef __AARCH64EB__
+ lsr x12,x4,#32
+ mov w13,w4
+ lsr x14,x5,#32
+ mov w15,w5
+ lsr x16,x6,#32
+#else
+ mov w12,w4
+ lsr x13,x4,#32
+ mov w14,w5
+ lsr x15,x5,#32
+ mov w16,w6
+#endif
+
+ add x12,x12,x13,lsl#26 // base 2^26 -> base 2^64
+ lsr x13,x14,#12
+ adds x12,x12,x14,lsl#52
+ add x13,x13,x15,lsl#14
+ adc x13,x13,xzr
+ lsr x14,x16,#24
+ adds x13,x13,x16,lsl#40
+ adc x14,x14,xzr
+
+ cmp x17,#0 // is_base2_26?
+ add x9,x8,x8,lsr#2 // s1 = r1 + (r1 >> 2)
+ csel x4,x4,x12,eq // choose between radixes
+ csel x5,x5,x13,eq
+ csel x6,x6,x14,eq
+
+.Loop:
+ ldp x10,x11,[x1],#16 // load input
+ sub x2,x2,#16
+#ifdef __AARCH64EB__
+ rev x10,x10
+ rev x11,x11
+#endif
+ adds x4,x4,x10 // accumulate input
+ adcs x5,x5,x11
+
+ mul x12,x4,x7 // h0*r0
+ adc x6,x6,x3
+ umulh x13,x4,x7
+
+ mul x10,x5,x9 // h1*5*r1
+ umulh x11,x5,x9
+
+ adds x12,x12,x10
+ mul x10,x4,x8 // h0*r1
+ adc x13,x13,x11
+ umulh x14,x4,x8
+
+ adds x13,x13,x10
+ mul x10,x5,x7 // h1*r0
+ adc x14,x14,xzr
+ umulh x11,x5,x7
+
+ adds x13,x13,x10
+ mul x10,x6,x9 // h2*5*r1
+ adc x14,x14,x11
+ mul x11,x6,x7 // h2*r0
+
+ adds x13,x13,x10
+ adc x14,x14,x11
+
+ and x10,x14,#-4 // final reduction
+ and x6,x14,#3
+ add x10,x10,x14,lsr#2
+ adds x4,x12,x10
+ adcs x5,x13,xzr
+ adc x6,x6,xzr
+
+ cbnz x2,.Loop
+
+ stp x4,x5,[x0] // store hash value
+ stp x6,xzr,[x0,#16] // [and clear is_base2_26]
+
+.Lno_data:
+ ret
+.size poly1305_blocks,.-poly1305_blocks
+
+.type poly1305_emit,%function
+.align 5
+poly1305_emit:
+.Lpoly1305_emit:
+ ldp x4,x5,[x0] // load hash base 2^64
+ ldp x6,x7,[x0,#16] // [along with is_base2_26]
+ ldp x10,x11,[x2] // load nonce
+
+#ifdef __AARCH64EB__
+ lsr x12,x4,#32
+ mov w13,w4
+ lsr x14,x5,#32
+ mov w15,w5
+ lsr x16,x6,#32
+#else
+ mov w12,w4
+ lsr x13,x4,#32
+ mov w14,w5
+ lsr x15,x5,#32
+ mov w16,w6
+#endif
+
+ add x12,x12,x13,lsl#26 // base 2^26 -> base 2^64
+ lsr x13,x14,#12
+ adds x12,x12,x14,lsl#52
+ add x13,x13,x15,lsl#14
+ adc x13,x13,xzr
+ lsr x14,x16,#24
+ adds x13,x13,x16,lsl#40
+ adc x14,x14,xzr
+
+ cmp x7,#0 // is_base2_26?
+ csel x4,x4,x12,eq // choose between radixes
+ csel x5,x5,x13,eq
+ csel x6,x6,x14,eq
+
+ adds x12,x4,#5 // compare to modulus
+ adcs x13,x5,xzr
+ adc x14,x6,xzr
+
+ tst x14,#-4 // see if it's carried/borrowed
+
+ csel x4,x4,x12,eq
+ csel x5,x5,x13,eq
+
+#ifdef __AARCH64EB__
+ ror x10,x10,#32 // flip nonce words
+ ror x11,x11,#32
+#endif
+ adds x4,x4,x10 // accumulate nonce
+ adc x5,x5,x11
+#ifdef __AARCH64EB__
+ rev x4,x4 // flip output bytes
+ rev x5,x5
+#endif
+ stp x4,x5,[x1] // write result
+
+ ret
+.size poly1305_emit,.-poly1305_emit
+.type poly1305_mult,%function
+.align 5
+poly1305_mult:
+ mul x12,x4,x7 // h0*r0
+ umulh x13,x4,x7
+
+ mul x10,x5,x9 // h1*5*r1
+ umulh x11,x5,x9
+
+ adds x12,x12,x10
+ mul x10,x4,x8 // h0*r1
+ adc x13,x13,x11
+ umulh x14,x4,x8
+
+ adds x13,x13,x10
+ mul x10,x5,x7 // h1*r0
+ adc x14,x14,xzr
+ umulh x11,x5,x7
+
+ adds x13,x13,x10
+ mul x10,x6,x9 // h2*5*r1
+ adc x14,x14,x11
+ mul x11,x6,x7 // h2*r0
+
+ adds x13,x13,x10
+ adc x14,x14,x11
+
+ and x10,x14,#-4 // final reduction
+ and x6,x14,#3
+ add x10,x10,x14,lsr#2
+ adds x4,x12,x10
+ adcs x5,x13,xzr
+ adc x6,x6,xzr
+
+ ret
+.size poly1305_mult,.-poly1305_mult
+
+.type poly1305_splat,%function
+.align 4
+poly1305_splat:
+ and x12,x4,#0x03ffffff // base 2^64 -> base 2^26
+ ubfx x13,x4,#26,#26
+ extr x14,x5,x4,#52
+ and x14,x14,#0x03ffffff
+ ubfx x15,x5,#14,#26
+ extr x16,x6,x5,#40
+
+ str w12,[x0,#16*0] // r0
+ add w12,w13,w13,lsl#2 // r1*5
+ str w13,[x0,#16*1] // r1
+ add w13,w14,w14,lsl#2 // r2*5
+ str w12,[x0,#16*2] // s1
+ str w14,[x0,#16*3] // r2
+ add w14,w15,w15,lsl#2 // r3*5
+ str w13,[x0,#16*4] // s2
+ str w15,[x0,#16*5] // r3
+ add w15,w16,w16,lsl#2 // r4*5
+ str w14,[x0,#16*6] // s3
+ str w16,[x0,#16*7] // r4
+ str w15,[x0,#16*8] // s4
+
+ ret
+.size poly1305_splat,.-poly1305_splat
+
+#ifdef __KERNEL__
+.globl poly1305_blocks_neon
+#endif
+.type poly1305_blocks_neon,%function
+.align 5
+poly1305_blocks_neon:
+.Lpoly1305_blocks_neon:
+ ldr x17,[x0,#24]
+ cmp x2,#128
+ b.lo .Lpoly1305_blocks
+
+ .inst 0xd503233f // paciasp
+ stp x29,x30,[sp,#-80]!
+ add x29,sp,#0
+
+ stp d8,d9,[sp,#16] // meet ABI requirements
+ stp d10,d11,[sp,#32]
+ stp d12,d13,[sp,#48]
+ stp d14,d15,[sp,#64]
+
+ cbz x17,.Lbase2_64_neon
+
+ ldp w10,w11,[x0] // load hash value base 2^26
+ ldp w12,w13,[x0,#8]
+ ldr w14,[x0,#16]
+
+ tst x2,#31
+ b.eq .Leven_neon
+
+ ldp x7,x8,[x0,#32] // load key value
+
+ add x4,x10,x11,lsl#26 // base 2^26 -> base 2^64
+ lsr x5,x12,#12
+ adds x4,x4,x12,lsl#52
+ add x5,x5,x13,lsl#14
+ adc x5,x5,xzr
+ lsr x6,x14,#24
+ adds x5,x5,x14,lsl#40
+ adc x14,x6,xzr // can be partially reduced...
+
+ ldp x12,x13,[x1],#16 // load input
+ sub x2,x2,#16
+ add x9,x8,x8,lsr#2 // s1 = r1 + (r1 >> 2)
+
+#ifdef __AARCH64EB__
+ rev x12,x12
+ rev x13,x13
+#endif
+ adds x4,x4,x12 // accumulate input
+ adcs x5,x5,x13
+ adc x6,x6,x3
+
+ bl poly1305_mult
+
+ and x10,x4,#0x03ffffff // base 2^64 -> base 2^26
+ ubfx x11,x4,#26,#26
+ extr x12,x5,x4,#52
+ and x12,x12,#0x03ffffff
+ ubfx x13,x5,#14,#26
+ extr x14,x6,x5,#40
+
+ b .Leven_neon
+
+.align 4
+.Lbase2_64_neon:
+ ldp x7,x8,[x0,#32] // load key value
+
+ ldp x4,x5,[x0] // load hash value base 2^64
+ ldr x6,[x0,#16]
+
+ tst x2,#31
+ b.eq .Linit_neon
+
+ ldp x12,x13,[x1],#16 // load input
+ sub x2,x2,#16
+ add x9,x8,x8,lsr#2 // s1 = r1 + (r1 >> 2)
+#ifdef __AARCH64EB__
+ rev x12,x12
+ rev x13,x13
+#endif
+ adds x4,x4,x12 // accumulate input
+ adcs x5,x5,x13
+ adc x6,x6,x3
+
+ bl poly1305_mult
+
+.Linit_neon:
+ ldr w17,[x0,#48] // first table element
+ and x10,x4,#0x03ffffff // base 2^64 -> base 2^26
+ ubfx x11,x4,#26,#26
+ extr x12,x5,x4,#52
+ and x12,x12,#0x03ffffff
+ ubfx x13,x5,#14,#26
+ extr x14,x6,x5,#40
+
+ cmp w17,#-1 // is value impossible?
+ b.ne .Leven_neon
+
+ fmov d24,x10
+ fmov d25,x11
+ fmov d26,x12
+ fmov d27,x13
+ fmov d28,x14
+
+ ////////////////////////////////// initialize r^n table
+ mov x4,x7 // r^1
+ add x9,x8,x8,lsr#2 // s1 = r1 + (r1 >> 2)
+ mov x5,x8
+ mov x6,xzr
+ add x0,x0,#48+12
+ bl poly1305_splat
+
+ bl poly1305_mult // r^2
+ sub x0,x0,#4
+ bl poly1305_splat
+
+ bl poly1305_mult // r^3
+ sub x0,x0,#4
+ bl poly1305_splat
+
+ bl poly1305_mult // r^4
+ sub x0,x0,#4
+ bl poly1305_splat
+ sub x0,x0,#48 // restore original x0
+ b .Ldo_neon
+
+.align 4
+.Leven_neon:
+ fmov d24,x10
+ fmov d25,x11
+ fmov d26,x12
+ fmov d27,x13
+ fmov d28,x14
+
+.Ldo_neon:
+ ldp x8,x12,[x1,#32] // inp[2:3]
+ subs x2,x2,#64
+ ldp x9,x13,[x1,#48]
+ add x16,x1,#96
+ adr x17,.Lzeros
+
+ lsl x3,x3,#24
+ add x15,x0,#48
+
+#ifdef __AARCH64EB__
+ rev x8,x8
+ rev x12,x12
+ rev x9,x9
+ rev x13,x13
+#endif
+ and x4,x8,#0x03ffffff // base 2^64 -> base 2^26
+ and x5,x9,#0x03ffffff
+ ubfx x6,x8,#26,#26
+ ubfx x7,x9,#26,#26
+ add x4,x4,x5,lsl#32 // bfi x4,x5,#32,#32
+ extr x8,x12,x8,#52
+ extr x9,x13,x9,#52
+ add x6,x6,x7,lsl#32 // bfi x6,x7,#32,#32
+ fmov d14,x4
+ and x8,x8,#0x03ffffff
+ and x9,x9,#0x03ffffff
+ ubfx x10,x12,#14,#26
+ ubfx x11,x13,#14,#26
+ add x12,x3,x12,lsr#40
+ add x13,x3,x13,lsr#40
+ add x8,x8,x9,lsl#32 // bfi x8,x9,#32,#32
+ fmov d15,x6
+ add x10,x10,x11,lsl#32 // bfi x10,x11,#32,#32
+ add x12,x12,x13,lsl#32 // bfi x12,x13,#32,#32
+ fmov d16,x8
+ fmov d17,x10
+ fmov d18,x12
+
+ ldp x8,x12,[x1],#16 // inp[0:1]
+ ldp x9,x13,[x1],#48
+
+ ld1 {v0.4s,v1.4s,v2.4s,v3.4s},[x15],#64
+ ld1 {v4.4s,v5.4s,v6.4s,v7.4s},[x15],#64
+ ld1 {v8.4s},[x15]
+
+#ifdef __AARCH64EB__
+ rev x8,x8
+ rev x12,x12
+ rev x9,x9
+ rev x13,x13
+#endif
+ and x4,x8,#0x03ffffff // base 2^64 -> base 2^26
+ and x5,x9,#0x03ffffff
+ ubfx x6,x8,#26,#26
+ ubfx x7,x9,#26,#26
+ add x4,x4,x5,lsl#32 // bfi x4,x5,#32,#32
+ extr x8,x12,x8,#52
+ extr x9,x13,x9,#52
+ add x6,x6,x7,lsl#32 // bfi x6,x7,#32,#32
+ fmov d9,x4
+ and x8,x8,#0x03ffffff
+ and x9,x9,#0x03ffffff
+ ubfx x10,x12,#14,#26
+ ubfx x11,x13,#14,#26
+ add x12,x3,x12,lsr#40
+ add x13,x3,x13,lsr#40
+ add x8,x8,x9,lsl#32 // bfi x8,x9,#32,#32
+ fmov d10,x6
+ add x10,x10,x11,lsl#32 // bfi x10,x11,#32,#32
+ add x12,x12,x13,lsl#32 // bfi x12,x13,#32,#32
+ movi v31.2d,#-1
+ fmov d11,x8
+ fmov d12,x10
+ fmov d13,x12
+ ushr v31.2d,v31.2d,#38
+
+ b.ls .Lskip_loop
+
+.align 4
+.Loop_neon:
+ ////////////////////////////////////////////////////////////////
+ // ((inp[0]*r^4+inp[2]*r^2+inp[4])*r^4+inp[6]*r^2
+ // ((inp[1]*r^4+inp[3]*r^2+inp[5])*r^3+inp[7]*r
+ // ___________________/
+ // ((inp[0]*r^4+inp[2]*r^2+inp[4])*r^4+inp[6]*r^2+inp[8])*r^2
+ // ((inp[1]*r^4+inp[3]*r^2+inp[5])*r^4+inp[7]*r^2+inp[9])*r
+ // ___________________/ ____________________/
+ //
+ // Note that we start with inp[2:3]*r^2. This is because it
+ // doesn't depend on reduction in previous iteration.
+ ////////////////////////////////////////////////////////////////
+ // d4 = h0*r4 + h1*r3 + h2*r2 + h3*r1 + h4*r0
+ // d3 = h0*r3 + h1*r2 + h2*r1 + h3*r0 + h4*5*r4
+ // d2 = h0*r2 + h1*r1 + h2*r0 + h3*5*r4 + h4*5*r3
+ // d1 = h0*r1 + h1*r0 + h2*5*r4 + h3*5*r3 + h4*5*r2
+ // d0 = h0*r0 + h1*5*r4 + h2*5*r3 + h3*5*r2 + h4*5*r1
+
+ subs x2,x2,#64
+ umull v23.2d,v14.2s,v7.s[2]
+ csel x16,x17,x16,lo
+ umull v22.2d,v14.2s,v5.s[2]
+ umull v21.2d,v14.2s,v3.s[2]
+ ldp x8,x12,[x16],#16 // inp[2:3] (or zero)
+ umull v20.2d,v14.2s,v1.s[2]
+ ldp x9,x13,[x16],#48
+ umull v19.2d,v14.2s,v0.s[2]
+#ifdef __AARCH64EB__
+ rev x8,x8
+ rev x12,x12
+ rev x9,x9
+ rev x13,x13
+#endif
+
+ umlal v23.2d,v15.2s,v5.s[2]
+ and x4,x8,#0x03ffffff // base 2^64 -> base 2^26
+ umlal v22.2d,v15.2s,v3.s[2]
+ and x5,x9,#0x03ffffff
+ umlal v21.2d,v15.2s,v1.s[2]
+ ubfx x6,x8,#26,#26
+ umlal v20.2d,v15.2s,v0.s[2]
+ ubfx x7,x9,#26,#26
+ umlal v19.2d,v15.2s,v8.s[2]
+ add x4,x4,x5,lsl#32 // bfi x4,x5,#32,#32
+
+ umlal v23.2d,v16.2s,v3.s[2]
+ extr x8,x12,x8,#52
+ umlal v22.2d,v16.2s,v1.s[2]
+ extr x9,x13,x9,#52
+ umlal v21.2d,v16.2s,v0.s[2]
+ add x6,x6,x7,lsl#32 // bfi x6,x7,#32,#32
+ umlal v20.2d,v16.2s,v8.s[2]
+ fmov d14,x4
+ umlal v19.2d,v16.2s,v6.s[2]
+ and x8,x8,#0x03ffffff
+
+ umlal v23.2d,v17.2s,v1.s[2]
+ and x9,x9,#0x03ffffff
+ umlal v22.2d,v17.2s,v0.s[2]
+ ubfx x10,x12,#14,#26
+ umlal v21.2d,v17.2s,v8.s[2]
+ ubfx x11,x13,#14,#26
+ umlal v20.2d,v17.2s,v6.s[2]
+ add x8,x8,x9,lsl#32 // bfi x8,x9,#32,#32
+ umlal v19.2d,v17.2s,v4.s[2]
+ fmov d15,x6
+
+ add v11.2s,v11.2s,v26.2s
+ add x12,x3,x12,lsr#40
+ umlal v23.2d,v18.2s,v0.s[2]
+ add x13,x3,x13,lsr#40
+ umlal v22.2d,v18.2s,v8.s[2]
+ add x10,x10,x11,lsl#32 // bfi x10,x11,#32,#32
+ umlal v21.2d,v18.2s,v6.s[2]
+ add x12,x12,x13,lsl#32 // bfi x12,x13,#32,#32
+ umlal v20.2d,v18.2s,v4.s[2]
+ fmov d16,x8
+ umlal v19.2d,v18.2s,v2.s[2]
+ fmov d17,x10
+
+ ////////////////////////////////////////////////////////////////
+ // (hash+inp[0:1])*r^4 and accumulate
+
+ add v9.2s,v9.2s,v24.2s
+ fmov d18,x12
+ umlal v22.2d,v11.2s,v1.s[0]
+ ldp x8,x12,[x1],#16 // inp[0:1]
+ umlal v19.2d,v11.2s,v6.s[0]
+ ldp x9,x13,[x1],#48
+ umlal v23.2d,v11.2s,v3.s[0]
+ umlal v20.2d,v11.2s,v8.s[0]
+ umlal v21.2d,v11.2s,v0.s[0]
+#ifdef __AARCH64EB__
+ rev x8,x8
+ rev x12,x12
+ rev x9,x9
+ rev x13,x13
+#endif
+
+ add v10.2s,v10.2s,v25.2s
+ umlal v22.2d,v9.2s,v5.s[0]
+ umlal v23.2d,v9.2s,v7.s[0]
+ and x4,x8,#0x03ffffff // base 2^64 -> base 2^26
+ umlal v21.2d,v9.2s,v3.s[0]
+ and x5,x9,#0x03ffffff
+ umlal v19.2d,v9.2s,v0.s[0]
+ ubfx x6,x8,#26,#26
+ umlal v20.2d,v9.2s,v1.s[0]
+ ubfx x7,x9,#26,#26
+
+ add v12.2s,v12.2s,v27.2s
+ add x4,x4,x5,lsl#32 // bfi x4,x5,#32,#32
+ umlal v22.2d,v10.2s,v3.s[0]
+ extr x8,x12,x8,#52
+ umlal v23.2d,v10.2s,v5.s[0]
+ extr x9,x13,x9,#52
+ umlal v19.2d,v10.2s,v8.s[0]
+ add x6,x6,x7,lsl#32 // bfi x6,x7,#32,#32
+ umlal v21.2d,v10.2s,v1.s[0]
+ fmov d9,x4
+ umlal v20.2d,v10.2s,v0.s[0]
+ and x8,x8,#0x03ffffff
+
+ add v13.2s,v13.2s,v28.2s
+ and x9,x9,#0x03ffffff
+ umlal v22.2d,v12.2s,v0.s[0]
+ ubfx x10,x12,#14,#26
+ umlal v19.2d,v12.2s,v4.s[0]
+ ubfx x11,x13,#14,#26
+ umlal v23.2d,v12.2s,v1.s[0]
+ add x8,x8,x9,lsl#32 // bfi x8,x9,#32,#32
+ umlal v20.2d,v12.2s,v6.s[0]
+ fmov d10,x6
+ umlal v21.2d,v12.2s,v8.s[0]
+ add x12,x3,x12,lsr#40
+
+ umlal v22.2d,v13.2s,v8.s[0]
+ add x13,x3,x13,lsr#40
+ umlal v19.2d,v13.2s,v2.s[0]
+ add x10,x10,x11,lsl#32 // bfi x10,x11,#32,#32
+ umlal v23.2d,v13.2s,v0.s[0]
+ add x12,x12,x13,lsl#32 // bfi x12,x13,#32,#32
+ umlal v20.2d,v13.2s,v4.s[0]
+ fmov d11,x8
+ umlal v21.2d,v13.2s,v6.s[0]
+ fmov d12,x10
+ fmov d13,x12
+
+ /////////////////////////////////////////////////////////////////
+ // lazy reduction as discussed in "NEON crypto" by D.J. Bernstein
+ // and P. Schwabe
+ //
+ // [see discussion in poly1305-armv4 module]
+
+ ushr v29.2d,v22.2d,#26
+ xtn v27.2s,v22.2d
+ ushr v30.2d,v19.2d,#26
+ and v19.16b,v19.16b,v31.16b
+ add v23.2d,v23.2d,v29.2d // h3 -> h4
+ bic v27.2s,#0xfc,lsl#24 // &=0x03ffffff
+ add v20.2d,v20.2d,v30.2d // h0 -> h1
+
+ ushr v29.2d,v23.2d,#26
+ xtn v28.2s,v23.2d
+ ushr v30.2d,v20.2d,#26
+ xtn v25.2s,v20.2d
+ bic v28.2s,#0xfc,lsl#24
+ add v21.2d,v21.2d,v30.2d // h1 -> h2
+
+ add v19.2d,v19.2d,v29.2d
+ shl v29.2d,v29.2d,#2
+ shrn v30.2s,v21.2d,#26
+ xtn v26.2s,v21.2d
+ add v19.2d,v19.2d,v29.2d // h4 -> h0
+ bic v25.2s,#0xfc,lsl#24
+ add v27.2s,v27.2s,v30.2s // h2 -> h3
+ bic v26.2s,#0xfc,lsl#24
+
+ shrn v29.2s,v19.2d,#26
+ xtn v24.2s,v19.2d
+ ushr v30.2s,v27.2s,#26
+ bic v27.2s,#0xfc,lsl#24
+ bic v24.2s,#0xfc,lsl#24
+ add v25.2s,v25.2s,v29.2s // h0 -> h1
+ add v28.2s,v28.2s,v30.2s // h3 -> h4
+
+ b.hi .Loop_neon
+
+.Lskip_loop:
+ dup v16.2d,v16.d[0]
+ add v11.2s,v11.2s,v26.2s
+
+ ////////////////////////////////////////////////////////////////
+ // multiply (inp[0:1]+hash) or inp[2:3] by r^2:r^1
+
+ adds x2,x2,#32
+ b.ne .Long_tail
+
+ dup v16.2d,v11.d[0]
+ add v14.2s,v9.2s,v24.2s
+ add v17.2s,v12.2s,v27.2s
+ add v15.2s,v10.2s,v25.2s
+ add v18.2s,v13.2s,v28.2s
+
+.Long_tail:
+ dup v14.2d,v14.d[0]
+ umull2 v19.2d,v16.4s,v6.4s
+ umull2 v22.2d,v16.4s,v1.4s
+ umull2 v23.2d,v16.4s,v3.4s
+ umull2 v21.2d,v16.4s,v0.4s
+ umull2 v20.2d,v16.4s,v8.4s
+
+ dup v15.2d,v15.d[0]
+ umlal2 v19.2d,v14.4s,v0.4s
+ umlal2 v21.2d,v14.4s,v3.4s
+ umlal2 v22.2d,v14.4s,v5.4s
+ umlal2 v23.2d,v14.4s,v7.4s
+ umlal2 v20.2d,v14.4s,v1.4s
+
+ dup v17.2d,v17.d[0]
+ umlal2 v19.2d,v15.4s,v8.4s
+ umlal2 v22.2d,v15.4s,v3.4s
+ umlal2 v21.2d,v15.4s,v1.4s
+ umlal2 v23.2d,v15.4s,v5.4s
+ umlal2 v20.2d,v15.4s,v0.4s
+
+ dup v18.2d,v18.d[0]
+ umlal2 v22.2d,v17.4s,v0.4s
+ umlal2 v23.2d,v17.4s,v1.4s
+ umlal2 v19.2d,v17.4s,v4.4s
+ umlal2 v20.2d,v17.4s,v6.4s
+ umlal2 v21.2d,v17.4s,v8.4s
+
+ umlal2 v22.2d,v18.4s,v8.4s
+ umlal2 v19.2d,v18.4s,v2.4s
+ umlal2 v23.2d,v18.4s,v0.4s
+ umlal2 v20.2d,v18.4s,v4.4s
+ umlal2 v21.2d,v18.4s,v6.4s
+
+ b.eq .Lshort_tail
+
+ ////////////////////////////////////////////////////////////////
+ // (hash+inp[0:1])*r^4:r^3 and accumulate
+
+ add v9.2s,v9.2s,v24.2s
+ umlal v22.2d,v11.2s,v1.2s
+ umlal v19.2d,v11.2s,v6.2s
+ umlal v23.2d,v11.2s,v3.2s
+ umlal v20.2d,v11.2s,v8.2s
+ umlal v21.2d,v11.2s,v0.2s
+
+ add v10.2s,v10.2s,v25.2s
+ umlal v22.2d,v9.2s,v5.2s
+ umlal v19.2d,v9.2s,v0.2s
+ umlal v23.2d,v9.2s,v7.2s
+ umlal v20.2d,v9.2s,v1.2s
+ umlal v21.2d,v9.2s,v3.2s
+
+ add v12.2s,v12.2s,v27.2s
+ umlal v22.2d,v10.2s,v3.2s
+ umlal v19.2d,v10.2s,v8.2s
+ umlal v23.2d,v10.2s,v5.2s
+ umlal v20.2d,v10.2s,v0.2s
+ umlal v21.2d,v10.2s,v1.2s
+
+ add v13.2s,v13.2s,v28.2s
+ umlal v22.2d,v12.2s,v0.2s
+ umlal v19.2d,v12.2s,v4.2s
+ umlal v23.2d,v12.2s,v1.2s
+ umlal v20.2d,v12.2s,v6.2s
+ umlal v21.2d,v12.2s,v8.2s
+
+ umlal v22.2d,v13.2s,v8.2s
+ umlal v19.2d,v13.2s,v2.2s
+ umlal v23.2d,v13.2s,v0.2s
+ umlal v20.2d,v13.2s,v4.2s
+ umlal v21.2d,v13.2s,v6.2s
+
+.Lshort_tail:
+ ////////////////////////////////////////////////////////////////
+ // horizontal add
+
+ addp v22.2d,v22.2d,v22.2d
+ ldp d8,d9,[sp,#16] // meet ABI requirements
+ addp v19.2d,v19.2d,v19.2d
+ ldp d10,d11,[sp,#32]
+ addp v23.2d,v23.2d,v23.2d
+ ldp d12,d13,[sp,#48]
+ addp v20.2d,v20.2d,v20.2d
+ ldp d14,d15,[sp,#64]
+ addp v21.2d,v21.2d,v21.2d
+ ldr x30,[sp,#8]
+
+ ////////////////////////////////////////////////////////////////
+ // lazy reduction, but without narrowing
+
+ ushr v29.2d,v22.2d,#26
+ and v22.16b,v22.16b,v31.16b
+ ushr v30.2d,v19.2d,#26
+ and v19.16b,v19.16b,v31.16b
+
+ add v23.2d,v23.2d,v29.2d // h3 -> h4
+ add v20.2d,v20.2d,v30.2d // h0 -> h1
+
+ ushr v29.2d,v23.2d,#26
+ and v23.16b,v23.16b,v31.16b
+ ushr v30.2d,v20.2d,#26
+ and v20.16b,v20.16b,v31.16b
+ add v21.2d,v21.2d,v30.2d // h1 -> h2
+
+ add v19.2d,v19.2d,v29.2d
+ shl v29.2d,v29.2d,#2
+ ushr v30.2d,v21.2d,#26
+ and v21.16b,v21.16b,v31.16b
+ add v19.2d,v19.2d,v29.2d // h4 -> h0
+ add v22.2d,v22.2d,v30.2d // h2 -> h3
+
+ ushr v29.2d,v19.2d,#26
+ and v19.16b,v19.16b,v31.16b
+ ushr v30.2d,v22.2d,#26
+ and v22.16b,v22.16b,v31.16b
+ add v20.2d,v20.2d,v29.2d // h0 -> h1
+ add v23.2d,v23.2d,v30.2d // h3 -> h4
+
+ ////////////////////////////////////////////////////////////////
+ // write the result, can be partially reduced
+
+ st4 {v19.s,v20.s,v21.s,v22.s}[0],[x0],#16
+ mov x4,#1
+ st1 {v23.s}[0],[x0]
+ str x4,[x0,#8] // set is_base2_26
+
+ ldr x29,[sp],#80
+ .inst 0xd50323bf // autiasp
+ ret
+.size poly1305_blocks_neon,.-poly1305_blocks_neon
+
+.align 5
+.Lzeros:
+.long 0,0,0,0,0,0,0,0
+.asciz "Poly1305 for ARMv8, CRYPTOGAMS by @dot-asm"
+.align 2
+#if !defined(__KERNEL__) && !defined(_WIN64)
+.comm OPENSSL_armcap_P,4,4
+.hidden OPENSSL_armcap_P
+#endif
diff --git a/arch/arm64/crypto/poly1305-glue.c b/arch/arm64/crypto/poly1305-glue.c
new file mode 100644
index 0000000..2d34802
--- /dev/null
+++ b/arch/arm64/crypto/poly1305-glue.c
@@ -0,0 +1,230 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * OpenSSL/Cryptogams accelerated Poly1305 transform for arm64
+ *
+ * Copyright (C) 2019 Linaro Ltd. <ard.biesheuvel@linaro.org>
+ */
+
+#include <asm/hwcap.h>
+#include <asm/neon.h>
+#include <asm/simd.h>
+#include <asm/unaligned.h>
+#include <crypto/algapi.h>
+#include <crypto/internal/hash.h>
+#include <crypto/internal/poly1305.h>
+#include <linux/cpufeature.h>
+#include <linux/crypto.h>
+#include <linux/jump_label.h>
+#include <linux/module.h>
+
+asmlinkage void poly1305_init_arm64(void *state, const u8 *key);
+asmlinkage void poly1305_blocks(void *state, const u8 *src, u32 len, u32 hibit);
+asmlinkage void poly1305_blocks_neon(void *state, const u8 *src, u32 len, u32 hibit);
+asmlinkage void poly1305_emit(void *state, u8 *digest, const u32 *nonce);
+
+static __ro_after_init DEFINE_STATIC_KEY_FALSE(have_neon);
+
+void poly1305_init_arch(struct poly1305_desc_ctx *dctx, const u8 *key)
+{
+ poly1305_init_arm64(&dctx->h, key);
+ dctx->s[0] = get_unaligned_le32(key + 16);
+ dctx->s[1] = get_unaligned_le32(key + 20);
+ dctx->s[2] = get_unaligned_le32(key + 24);
+ dctx->s[3] = get_unaligned_le32(key + 28);
+ dctx->buflen = 0;
+}
+EXPORT_SYMBOL(poly1305_init_arch);
+
+static int neon_poly1305_init(struct shash_desc *desc)
+{
+ struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
+
+ dctx->buflen = 0;
+ dctx->rset = 0;
+ dctx->sset = false;
+
+ return 0;
+}
+
+static void neon_poly1305_blocks(struct poly1305_desc_ctx *dctx, const u8 *src,
+ u32 len, u32 hibit, bool do_neon)
+{
+ if (unlikely(!dctx->sset)) {
+ if (!dctx->rset) {
+ poly1305_init_arch(dctx, src);
+ src += POLY1305_BLOCK_SIZE;
+ len -= POLY1305_BLOCK_SIZE;
+ dctx->rset = 1;
+ }
+ if (len >= POLY1305_BLOCK_SIZE) {
+ dctx->s[0] = get_unaligned_le32(src + 0);
+ dctx->s[1] = get_unaligned_le32(src + 4);
+ dctx->s[2] = get_unaligned_le32(src + 8);
+ dctx->s[3] = get_unaligned_le32(src + 12);
+ src += POLY1305_BLOCK_SIZE;
+ len -= POLY1305_BLOCK_SIZE;
+ dctx->sset = true;
+ }
+ if (len < POLY1305_BLOCK_SIZE)
+ return;
+ }
+
+ len &= ~(POLY1305_BLOCK_SIZE - 1);
+
+ if (static_branch_likely(&have_neon) && likely(do_neon))
+ poly1305_blocks_neon(&dctx->h, src, len, hibit);
+ else
+ poly1305_blocks(&dctx->h, src, len, hibit);
+}
+
+static void neon_poly1305_do_update(struct poly1305_desc_ctx *dctx,
+ const u8 *src, u32 len, bool do_neon)
+{
+ if (unlikely(dctx->buflen)) {
+ u32 bytes = min(len, POLY1305_BLOCK_SIZE - dctx->buflen);
+
+ memcpy(dctx->buf + dctx->buflen, src, bytes);
+ src += bytes;
+ len -= bytes;
+ dctx->buflen += bytes;
+
+ if (dctx->buflen == POLY1305_BLOCK_SIZE) {
+ neon_poly1305_blocks(dctx, dctx->buf,
+ POLY1305_BLOCK_SIZE, 1, false);
+ dctx->buflen = 0;
+ }
+ }
+
+ if (likely(len >= POLY1305_BLOCK_SIZE)) {
+ neon_poly1305_blocks(dctx, src, len, 1, do_neon);
+ src += round_down(len, POLY1305_BLOCK_SIZE);
+ len %= POLY1305_BLOCK_SIZE;
+ }
+
+ if (unlikely(len)) {
+ dctx->buflen = len;
+ memcpy(dctx->buf, src, len);
+ }
+}
+
+static int neon_poly1305_update(struct shash_desc *desc,
+ const u8 *src, unsigned int srclen)
+{
+ bool do_neon = may_use_simd() && srclen > 128;
+ struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
+
+ if (static_branch_likely(&have_neon) && do_neon)
+ kernel_neon_begin();
+ neon_poly1305_do_update(dctx, src, srclen, do_neon);
+ if (static_branch_likely(&have_neon) && do_neon)
+ kernel_neon_end();
+ return 0;
+}
+
+void poly1305_update_arch(struct poly1305_desc_ctx *dctx, const u8 *src,
+ unsigned int nbytes)
+{
+ if (unlikely(dctx->buflen)) {
+ u32 bytes = min(nbytes, POLY1305_BLOCK_SIZE - dctx->buflen);
+
+ memcpy(dctx->buf + dctx->buflen, src, bytes);
+ src += bytes;
+ nbytes -= bytes;
+ dctx->buflen += bytes;
+
+ if (dctx->buflen == POLY1305_BLOCK_SIZE) {
+ poly1305_blocks(&dctx->h, dctx->buf, POLY1305_BLOCK_SIZE, 1);
+ dctx->buflen = 0;
+ }
+ }
+
+ if (likely(nbytes >= POLY1305_BLOCK_SIZE)) {
+ unsigned int len = round_down(nbytes, POLY1305_BLOCK_SIZE);
+
+ if (static_branch_likely(&have_neon) && may_use_simd()) {
+ do {
+ unsigned int todo = min_t(unsigned int, len, SZ_4K);
+
+ kernel_neon_begin();
+ poly1305_blocks_neon(&dctx->h, src, todo, 1);
+ kernel_neon_end();
+
+ len -= todo;
+ src += todo;
+ } while (len);
+ } else {
+ poly1305_blocks(&dctx->h, src, len, 1);
+ src += len;
+ }
+ nbytes %= POLY1305_BLOCK_SIZE;
+ }
+
+ if (unlikely(nbytes)) {
+ dctx->buflen = nbytes;
+ memcpy(dctx->buf, src, nbytes);
+ }
+}
+EXPORT_SYMBOL(poly1305_update_arch);
+
+void poly1305_final_arch(struct poly1305_desc_ctx *dctx, u8 *dst)
+{
+ if (unlikely(dctx->buflen)) {
+ dctx->buf[dctx->buflen++] = 1;
+ memset(dctx->buf + dctx->buflen, 0,
+ POLY1305_BLOCK_SIZE - dctx->buflen);
+ poly1305_blocks(&dctx->h, dctx->buf, POLY1305_BLOCK_SIZE, 0);
+ }
+
+ poly1305_emit(&dctx->h, dst, dctx->s);
+ *dctx = (struct poly1305_desc_ctx){};
+}
+EXPORT_SYMBOL(poly1305_final_arch);
+
+static int neon_poly1305_final(struct shash_desc *desc, u8 *dst)
+{
+ struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
+
+ if (unlikely(!dctx->sset))
+ return -ENOKEY;
+
+ poly1305_final_arch(dctx, dst);
+ return 0;
+}
+
+static struct shash_alg neon_poly1305_alg = {
+ .init = neon_poly1305_init,
+ .update = neon_poly1305_update,
+ .final = neon_poly1305_final,
+ .digestsize = POLY1305_DIGEST_SIZE,
+ .descsize = sizeof(struct poly1305_desc_ctx),
+
+ .base.cra_name = "poly1305",
+ .base.cra_driver_name = "poly1305-neon",
+ .base.cra_priority = 200,
+ .base.cra_blocksize = POLY1305_BLOCK_SIZE,
+ .base.cra_module = THIS_MODULE,
+};
+
+static int __init neon_poly1305_mod_init(void)
+{
+ if (!(elf_hwcap & HWCAP_ASIMD))
+ return 0;
+
+ static_branch_enable(&have_neon);
+
+ return IS_REACHABLE(CONFIG_CRYPTO_HASH) ?
+ crypto_register_shash(&neon_poly1305_alg) : 0;
+}
+
+static void __exit neon_poly1305_mod_exit(void)
+{
+ if (IS_REACHABLE(CONFIG_CRYPTO_HASH) && (elf_hwcap & HWCAP_ASIMD))
+ crypto_unregister_shash(&neon_poly1305_alg);
+}
+
+module_init(neon_poly1305_mod_init);
+module_exit(neon_poly1305_mod_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS_CRYPTO("poly1305");
+MODULE_ALIAS_CRYPTO("poly1305-neon");
diff --git a/arch/arm64/crypto/sha1-ce-glue.c b/arch/arm64/crypto/sha1-ce-glue.c
index 3f51743..ff11092 100644
--- a/arch/arm64/crypto/sha1-ce-glue.c
+++ b/arch/arm64/crypto/sha1-ce-glue.c
@@ -30,6 +30,14 @@ struct sha1_ce_state {
asmlinkage void sha1_ce_transform(struct sha1_ce_state *sst, u8 const *src,
int blocks);
+#ifdef CONFIG_CFI_CLANG
+static inline void __cfi_sha1_ce_transform(struct sha1_state *sst,
+ u8 const *src, int blocks)
+{
+ sha1_ce_transform((struct sha1_ce_state *)sst, src, blocks);
+}
+#define sha1_ce_transform __cfi_sha1_ce_transform
+#endif
const u32 sha1_ce_offsetof_count = offsetof(struct sha1_ce_state, sst.count);
const u32 sha1_ce_offsetof_finalize = offsetof(struct sha1_ce_state, finalize);
diff --git a/arch/arm64/crypto/sha2-ce-glue.c b/arch/arm64/crypto/sha2-ce-glue.c
index 4022c51..e7dfd98 100644
--- a/arch/arm64/crypto/sha2-ce-glue.c
+++ b/arch/arm64/crypto/sha2-ce-glue.c
@@ -31,6 +31,14 @@ struct sha256_ce_state {
asmlinkage void sha2_ce_transform(struct sha256_ce_state *sst, u8 const *src,
int blocks);
+#ifdef CONFIG_CFI_CLANG
+static inline void __cfi_sha2_ce_transform(struct sha256_state *sst,
+ u8 const *src, int blocks)
+{
+ sha2_ce_transform((struct sha256_ce_state *)sst, src, blocks);
+}
+#define sha2_ce_transform __cfi_sha2_ce_transform
+#endif
const u32 sha256_ce_offsetof_count = offsetof(struct sha256_ce_state,
sst.count);
diff --git a/arch/arm64/include/asm/alternative.h b/arch/arm64/include/asm/alternative.h
index 4fbbcdd..bb616e2 100644
--- a/arch/arm64/include/asm/alternative.h
+++ b/arch/arm64/include/asm/alternative.h
@@ -73,13 +73,13 @@ static inline void apply_alternatives_module(void *start, size_t length) { }
".pushsection .altinstructions,\"a\"\n" \
ALTINSTR_ENTRY(feature) \
".popsection\n" \
- ".subsection 1\n" \
+ ".pushsection .altinstr_replacement, \"a\"\n" \
"663:\n\t" \
newinstr "\n" \
"664:\n\t" \
+ ".popsection\n\t" \
".org . - (664b-663b) + (662b-661b)\n\t" \
- ".org . - (662b-661b) + (664b-663b)\n\t" \
- ".previous\n" \
+ ".org . - (662b-661b) + (664b-663b)\n" \
".endif\n"
#define __ALTERNATIVE_CFG_CB(oldinstr, feature, cfg_enabled, cb) \
@@ -117,11 +117,11 @@ static inline void apply_alternatives_module(void *start, size_t length) { }
662: .pushsection .altinstructions, "a"
altinstruction_entry 661b, 663f, \cap, 662b-661b, 664f-663f
.popsection
- .subsection 1
+ .pushsection .altinstr_replacement, "ax"
663: \insn2
664: .org . - (664b-663b) + (662b-661b)
.org . - (662b-661b) + (664b-663b)
- .previous
+ .popsection
.endif
.endm
@@ -160,7 +160,7 @@ static inline void apply_alternatives_module(void *start, size_t length) { }
.pushsection .altinstructions, "a"
altinstruction_entry 663f, 661f, \cap, 664f-663f, 662f-661f
.popsection
- .subsection 1
+ .pushsection .altinstr_replacement, "ax"
.align 2 /* So GAS knows label 661 is suitably aligned */
661:
.endm
@@ -179,9 +179,9 @@ static inline void apply_alternatives_module(void *start, size_t length) { }
.macro alternative_else
662:
.if .Lasm_alt_mode==0
- .subsection 1
+ .pushsection .altinstr_replacement, "ax"
.else
- .previous
+ .popsection
.endif
663:
.endm
@@ -194,7 +194,7 @@ static inline void apply_alternatives_module(void *start, size_t length) { }
.org . - (664b-663b) + (662b-661b)
.org . - (662b-661b) + (664b-663b)
.if .Lasm_alt_mode==0
- .previous
+ .popsection
.endif
.endm
diff --git a/arch/arm64/include/asm/asm-uaccess.h b/arch/arm64/include/asm/asm-uaccess.h
index 4128bec..d8b2ce5 100644
--- a/arch/arm64/include/asm/asm-uaccess.h
+++ b/arch/arm64/include/asm/asm-uaccess.h
@@ -78,10 +78,9 @@ alternative_else_nop_endif
/*
* Remove the address tag from a virtual address, if present.
*/
- .macro clear_address_tag, dst, addr
- tst \addr, #(1 << 55)
- bic \dst, \addr, #(0xff << 56)
- csel \dst, \dst, \addr, eq
+ .macro untagged_addr, dst, addr
+ sbfx \dst, \addr, #0, #56
+ and \dst, \dst, \addr
.endm
#endif
diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h
index 5a97ac8..886669b 100644
--- a/arch/arm64/include/asm/assembler.h
+++ b/arch/arm64/include/asm/assembler.h
@@ -23,6 +23,8 @@
#ifndef __ASM_ASSEMBLER_H
#define __ASM_ASSEMBLER_H
+#include <asm-generic/export.h>
+
#include <asm/asm-offsets.h>
#include <asm/cpufeature.h>
#include <asm/debug-monitors.h>
@@ -79,6 +81,18 @@
msr daif, \flags
.endm
+/*
+ * Save/disable and restore interrupts.
+ */
+ .macro save_and_disable_irqs, olddaif
+ mrs \olddaif, daif
+ disable_irq
+ .endm
+
+ .macro restore_irqs, olddaif
+ msr daif, \olddaif
+ .endm
+
.macro enable_dbg
msr daifclr, #8
.endm
@@ -488,6 +502,13 @@ USER(\label, ic ivau, \tmp2) // invalidate I line PoU
#else
#define NOKPROBE(x)
#endif
+
+#ifdef CONFIG_KASAN
+#define EXPORT_SYMBOL_NOKASAN(name)
+#else
+#define EXPORT_SYMBOL_NOKASAN(name) EXPORT_SYMBOL(name)
+#endif
+
/*
* Emit a 64-bit absolute little endian symbol reference in a way that
* ensures that it will be resolved at build time, even when building a
diff --git a/arch/arm64/include/asm/atomic_ll_sc.h b/arch/arm64/include/asm/atomic_ll_sc.h
index 1cc4244..1c6f672 100644
--- a/arch/arm64/include/asm/atomic_ll_sc.h
+++ b/arch/arm64/include/asm/atomic_ll_sc.h
@@ -248,54 +248,53 @@ __LL_SC_PREFIX(atomic64_dec_if_positive(atomic64_t *v))
}
__LL_SC_EXPORT(atomic64_dec_if_positive);
-#define __CMPXCHG_CASE(w, sfx, name, sz, mb, acq, rel, cl, constraint) \
-__LL_SC_INLINE u##sz \
-__LL_SC_PREFIX(__cmpxchg_case_##name##sz(volatile void *ptr, \
- unsigned long old, \
- u##sz new)) \
+#define __CMPXCHG_CASE(w, sz, name, mb, acq, rel, cl, constraint) \
+__LL_SC_INLINE unsigned long \
+__LL_SC_PREFIX(__cmpxchg_case_##name(volatile void *ptr, \
+ unsigned long old, \
+ unsigned long new)) \
{ \
- unsigned long tmp; \
- u##sz oldval; \
+ unsigned long tmp, oldval; \
\
asm volatile( \
" prfm pstl1strm, %[v]\n" \
- "1: ld" #acq "xr" #sfx "\t%" #w "[oldval], %[v]\n" \
+ "1: ld" #acq "xr" #sz "\t%" #w "[oldval], %[v]\n" \
" eor %" #w "[tmp], %" #w "[oldval], %" #w "[old]\n" \
" cbnz %" #w "[tmp], 2f\n" \
- " st" #rel "xr" #sfx "\t%w[tmp], %" #w "[new], %[v]\n" \
+ " st" #rel "xr" #sz "\t%w[tmp], %" #w "[new], %[v]\n" \
" cbnz %w[tmp], 1b\n" \
" " #mb "\n" \
"2:" \
: [tmp] "=&r" (tmp), [oldval] "=&r" (oldval), \
- [v] "+Q" (*(u##sz *)ptr) \
- : [old] #constraint "r" (old), [new] "r" (new) \
+ [v] "+Q" (*(unsigned long *)ptr) \
+ : [old] #constraint "r" (old), [new] "r" (new) \
: cl); \
\
return oldval; \
} \
-__LL_SC_EXPORT(__cmpxchg_case_##name##sz);
+__LL_SC_EXPORT(__cmpxchg_case_##name);
/*
* Earlier versions of GCC (no later than 8.1.0) appear to incorrectly
* handle the 'K' constraint for the value 4294967295 - thus we use no
* constraint for 32 bit operations.
*/
-__CMPXCHG_CASE(w, b, , 8, , , , , )
-__CMPXCHG_CASE(w, h, , 16, , , , , )
-__CMPXCHG_CASE(w, , , 32, , , , , )
-__CMPXCHG_CASE( , , , 64, , , , , L)
-__CMPXCHG_CASE(w, b, acq_, 8, , a, , "memory", )
-__CMPXCHG_CASE(w, h, acq_, 16, , a, , "memory", )
-__CMPXCHG_CASE(w, , acq_, 32, , a, , "memory", )
-__CMPXCHG_CASE( , , acq_, 64, , a, , "memory", L)
-__CMPXCHG_CASE(w, b, rel_, 8, , , l, "memory", )
-__CMPXCHG_CASE(w, h, rel_, 16, , , l, "memory", )
-__CMPXCHG_CASE(w, , rel_, 32, , , l, "memory", )
-__CMPXCHG_CASE( , , rel_, 64, , , l, "memory", L)
-__CMPXCHG_CASE(w, b, mb_, 8, dmb ish, , l, "memory", )
-__CMPXCHG_CASE(w, h, mb_, 16, dmb ish, , l, "memory", )
-__CMPXCHG_CASE(w, , mb_, 32, dmb ish, , l, "memory", )
-__CMPXCHG_CASE( , , mb_, 64, dmb ish, , l, "memory", L)
+__CMPXCHG_CASE(w, b, 1, , , , , )
+__CMPXCHG_CASE(w, h, 2, , , , , )
+__CMPXCHG_CASE(w, , 4, , , , , )
+__CMPXCHG_CASE( , , 8, , , , , L)
+__CMPXCHG_CASE(w, b, acq_1, , a, , "memory", )
+__CMPXCHG_CASE(w, h, acq_2, , a, , "memory", )
+__CMPXCHG_CASE(w, , acq_4, , a, , "memory", )
+__CMPXCHG_CASE( , , acq_8, , a, , "memory", L)
+__CMPXCHG_CASE(w, b, rel_1, , , l, "memory", )
+__CMPXCHG_CASE(w, h, rel_2, , , l, "memory", )
+__CMPXCHG_CASE(w, , rel_4, , , l, "memory", )
+__CMPXCHG_CASE( , , rel_8, , , l, "memory", L)
+__CMPXCHG_CASE(w, b, mb_1, dmb ish, , l, "memory", )
+__CMPXCHG_CASE(w, h, mb_2, dmb ish, , l, "memory", )
+__CMPXCHG_CASE(w, , mb_4, dmb ish, , l, "memory", )
+__CMPXCHG_CASE( , , mb_8, dmb ish, , l, "memory", L)
#undef __CMPXCHG_CASE
diff --git a/arch/arm64/include/asm/atomic_lse.h b/arch/arm64/include/asm/atomic_lse.h
index 80cadc7..eab3de4 100644
--- a/arch/arm64/include/asm/atomic_lse.h
+++ b/arch/arm64/include/asm/atomic_lse.h
@@ -480,24 +480,24 @@ static inline long atomic64_dec_if_positive(atomic64_t *v)
#define __LL_SC_CMPXCHG(op) __LL_SC_CALL(__cmpxchg_case_##op)
-#define __CMPXCHG_CASE(w, sfx, name, sz, mb, cl...) \
-static inline u##sz __cmpxchg_case_##name##sz(volatile void *ptr, \
- unsigned long old, \
- u##sz new) \
+#define __CMPXCHG_CASE(w, sz, name, mb, cl...) \
+static inline unsigned long __cmpxchg_case_##name(volatile void *ptr, \
+ unsigned long old, \
+ unsigned long new) \
{ \
register unsigned long x0 asm ("x0") = (unsigned long)ptr; \
register unsigned long x1 asm ("x1") = old; \
- register u##sz x2 asm ("x2") = new; \
+ register unsigned long x2 asm ("x2") = new; \
\
asm volatile( \
__LSE_PREAMBLE \
ARM64_LSE_ATOMIC_INSN( \
/* LL/SC */ \
- __LL_SC_CMPXCHG(name##sz) \
+ __LL_SC_CMPXCHG(name) \
__nops(2), \
/* LSE atomics */ \
" mov " #w "30, %" #w "[old]\n" \
- " cas" #mb #sfx "\t" #w "30, %" #w "[new], %[v]\n" \
+ " cas" #mb #sz "\t" #w "30, %" #w "[new], %[v]\n" \
" mov %" #w "[ret], " #w "30") \
: [ret] "+r" (x0), [v] "+Q" (*(unsigned long *)ptr) \
: [old] "r" (x1), [new] "r" (x2) \
@@ -506,22 +506,22 @@ static inline u##sz __cmpxchg_case_##name##sz(volatile void *ptr, \
return x0; \
}
-__CMPXCHG_CASE(w, b, , 8, )
-__CMPXCHG_CASE(w, h, , 16, )
-__CMPXCHG_CASE(w, , , 32, )
-__CMPXCHG_CASE(x, , , 64, )
-__CMPXCHG_CASE(w, b, acq_, 8, a, "memory")
-__CMPXCHG_CASE(w, h, acq_, 16, a, "memory")
-__CMPXCHG_CASE(w, , acq_, 32, a, "memory")
-__CMPXCHG_CASE(x, , acq_, 64, a, "memory")
-__CMPXCHG_CASE(w, b, rel_, 8, l, "memory")
-__CMPXCHG_CASE(w, h, rel_, 16, l, "memory")
-__CMPXCHG_CASE(w, , rel_, 32, l, "memory")
-__CMPXCHG_CASE(x, , rel_, 64, l, "memory")
-__CMPXCHG_CASE(w, b, mb_, 8, al, "memory")
-__CMPXCHG_CASE(w, h, mb_, 16, al, "memory")
-__CMPXCHG_CASE(w, , mb_, 32, al, "memory")
-__CMPXCHG_CASE(x, , mb_, 64, al, "memory")
+__CMPXCHG_CASE(w, b, 1, )
+__CMPXCHG_CASE(w, h, 2, )
+__CMPXCHG_CASE(w, , 4, )
+__CMPXCHG_CASE(x, , 8, )
+__CMPXCHG_CASE(w, b, acq_1, a, "memory")
+__CMPXCHG_CASE(w, h, acq_2, a, "memory")
+__CMPXCHG_CASE(w, , acq_4, a, "memory")
+__CMPXCHG_CASE(x, , acq_8, a, "memory")
+__CMPXCHG_CASE(w, b, rel_1, l, "memory")
+__CMPXCHG_CASE(w, h, rel_2, l, "memory")
+__CMPXCHG_CASE(w, , rel_4, l, "memory")
+__CMPXCHG_CASE(x, , rel_8, l, "memory")
+__CMPXCHG_CASE(w, b, mb_1, al, "memory")
+__CMPXCHG_CASE(w, h, mb_2, al, "memory")
+__CMPXCHG_CASE(w, , mb_4, al, "memory")
+__CMPXCHG_CASE(x, , mb_8, al, "memory")
#undef __LL_SC_CMPXCHG
#undef __CMPXCHG_CASE
diff --git a/arch/arm64/include/asm/brk-imm.h b/arch/arm64/include/asm/brk-imm.h
index ed693c5..2945fe6 100644
--- a/arch/arm64/include/asm/brk-imm.h
+++ b/arch/arm64/include/asm/brk-imm.h
@@ -16,10 +16,12 @@
* 0x400: for dynamic BRK instruction
* 0x401: for compile time BRK instruction
* 0x800: kernel-mode BUG() and WARN() traps
+ * 0x9xx: tag-based KASAN trap (allowed values 0x900 - 0x9ff)
*/
#define FAULT_BRK_IMM 0x100
#define KGDB_DYN_DBG_BRK_IMM 0x400
#define KGDB_COMPILED_DBG_BRK_IMM 0x401
#define BUG_BRK_IMM 0x800
+#define KASAN_BRK_IMM 0x900
#endif
diff --git a/arch/arm64/include/asm/cache.h b/arch/arm64/include/asm/cache.h
index baa6847..147f3eb 100644
--- a/arch/arm64/include/asm/cache.h
+++ b/arch/arm64/include/asm/cache.h
@@ -50,6 +50,10 @@
*/
#define ARCH_DMA_MINALIGN (128)
+#ifdef CONFIG_KASAN_SW_TAGS
+#define ARCH_SLAB_MINALIGN (1ULL << KASAN_SHADOW_SCALE_SHIFT)
+#endif
+
#ifndef __ASSEMBLY__
#include <linux/bitops.h>
diff --git a/arch/arm64/include/asm/cacheflush.h b/arch/arm64/include/asm/cacheflush.h
index a449a1c..3f8a615 100644
--- a/arch/arm64/include/asm/cacheflush.h
+++ b/arch/arm64/include/asm/cacheflush.h
@@ -41,6 +41,10 @@
* the implementation assumes non-aliasing VIPT D-cache and (aliasing)
* VIPT I-cache.
*
+ * flush_cache_all()
+ *
+ * Unconditionally clean and invalidate the entire cache.
+ *
* flush_cache_mm(mm)
*
* Clean and invalidate all user space cache entries
@@ -72,6 +76,7 @@
* - kaddr - page address
* - size - region size
*/
+extern void flush_cache_all(void);
extern void __flush_icache_range(unsigned long start, unsigned long end);
extern int invalidate_icache_range(unsigned long start, unsigned long end);
extern void __flush_dcache_area(void *addr, size_t len);
@@ -126,6 +131,15 @@ static inline void flush_cache_range(struct vm_area_struct *vma,
extern void __dma_map_area(const void *, size_t, int);
extern void __dma_unmap_area(const void *, size_t, int);
extern void __dma_flush_area(const void *, size_t);
+extern void __dma_inv_area(const void *start, size_t size);
+extern void __dma_clean_area(const void *start, size_t size);
+
+#define dmac_flush_range(start, end) \
+ __dma_flush_area(start, (void *)(end) - (void *)(start))
+#define dmac_inv_range(start, end) \
+ __dma_inv_area(start, (void *)(end) - (void *)(start))
+#define dmac_clean_range(start, end) \
+ __dma_clean_area(start, (void *)(end) - (void *)(start))
/*
* Copy user data from/to a page which is mapped into a different
diff --git a/arch/arm64/include/asm/clocksource.h b/arch/arm64/include/asm/clocksource.h
index 0ece64a..4821855 100644
--- a/arch/arm64/include/asm/clocksource.h
+++ b/arch/arm64/include/asm/clocksource.h
@@ -2,8 +2,6 @@
#ifndef _ASM_CLOCKSOURCE_H
#define _ASM_CLOCKSOURCE_H
-struct arch_clocksource_data {
- bool vdso_direct; /* Usable for direct VDSO access? */
-};
+#include <asm/vdso/clocksource.h>
#endif
diff --git a/arch/arm64/include/asm/cmpxchg.h b/arch/arm64/include/asm/cmpxchg.h
index 94ccb3b..d8b01c7 100644
--- a/arch/arm64/include/asm/cmpxchg.h
+++ b/arch/arm64/include/asm/cmpxchg.h
@@ -30,46 +30,46 @@
* barrier case is generated as release+dmb for the former and
* acquire+release for the latter.
*/
-#define __XCHG_CASE(w, sfx, name, sz, mb, nop_lse, acq, acq_lse, rel, cl) \
-static inline u##sz __xchg_case_##name##sz(u##sz x, volatile void *ptr) \
-{ \
- u##sz ret; \
- unsigned long tmp; \
- \
- asm volatile(ARM64_LSE_ATOMIC_INSN( \
- /* LL/SC */ \
- " prfm pstl1strm, %2\n" \
- "1: ld" #acq "xr" #sfx "\t%" #w "0, %2\n" \
- " st" #rel "xr" #sfx "\t%w1, %" #w "3, %2\n" \
- " cbnz %w1, 1b\n" \
- " " #mb, \
- /* LSE atomics */ \
- " swp" #acq_lse #rel #sfx "\t%" #w "3, %" #w "0, %2\n" \
- __nops(3) \
- " " #nop_lse) \
- : "=&r" (ret), "=&r" (tmp), "+Q" (*(u##sz *)ptr) \
- : "r" (x) \
- : cl); \
- \
- return ret; \
+#define __XCHG_CASE(w, sz, name, mb, nop_lse, acq, acq_lse, rel, cl) \
+static inline unsigned long __xchg_case_##name(unsigned long x, \
+ volatile void *ptr) \
+{ \
+ unsigned long ret, tmp; \
+ \
+ asm volatile(ARM64_LSE_ATOMIC_INSN( \
+ /* LL/SC */ \
+ " prfm pstl1strm, %2\n" \
+ "1: ld" #acq "xr" #sz "\t%" #w "0, %2\n" \
+ " st" #rel "xr" #sz "\t%w1, %" #w "3, %2\n" \
+ " cbnz %w1, 1b\n" \
+ " " #mb, \
+ /* LSE atomics */ \
+ " swp" #acq_lse #rel #sz "\t%" #w "3, %" #w "0, %2\n" \
+ __nops(3) \
+ " " #nop_lse) \
+ : "=&r" (ret), "=&r" (tmp), "+Q" (*(unsigned long *)ptr) \
+ : "r" (x) \
+ : cl); \
+ \
+ return ret; \
}
-__XCHG_CASE(w, b, , 8, , , , , , )
-__XCHG_CASE(w, h, , 16, , , , , , )
-__XCHG_CASE(w, , , 32, , , , , , )
-__XCHG_CASE( , , , 64, , , , , , )
-__XCHG_CASE(w, b, acq_, 8, , , a, a, , "memory")
-__XCHG_CASE(w, h, acq_, 16, , , a, a, , "memory")
-__XCHG_CASE(w, , acq_, 32, , , a, a, , "memory")
-__XCHG_CASE( , , acq_, 64, , , a, a, , "memory")
-__XCHG_CASE(w, b, rel_, 8, , , , , l, "memory")
-__XCHG_CASE(w, h, rel_, 16, , , , , l, "memory")
-__XCHG_CASE(w, , rel_, 32, , , , , l, "memory")
-__XCHG_CASE( , , rel_, 64, , , , , l, "memory")
-__XCHG_CASE(w, b, mb_, 8, dmb ish, nop, , a, l, "memory")
-__XCHG_CASE(w, h, mb_, 16, dmb ish, nop, , a, l, "memory")
-__XCHG_CASE(w, , mb_, 32, dmb ish, nop, , a, l, "memory")
-__XCHG_CASE( , , mb_, 64, dmb ish, nop, , a, l, "memory")
+__XCHG_CASE(w, b, 1, , , , , , )
+__XCHG_CASE(w, h, 2, , , , , , )
+__XCHG_CASE(w, , 4, , , , , , )
+__XCHG_CASE( , , 8, , , , , , )
+__XCHG_CASE(w, b, acq_1, , , a, a, , "memory")
+__XCHG_CASE(w, h, acq_2, , , a, a, , "memory")
+__XCHG_CASE(w, , acq_4, , , a, a, , "memory")
+__XCHG_CASE( , , acq_8, , , a, a, , "memory")
+__XCHG_CASE(w, b, rel_1, , , , , l, "memory")
+__XCHG_CASE(w, h, rel_2, , , , , l, "memory")
+__XCHG_CASE(w, , rel_4, , , , , l, "memory")
+__XCHG_CASE( , , rel_8, , , , , l, "memory")
+__XCHG_CASE(w, b, mb_1, dmb ish, nop, , a, l, "memory")
+__XCHG_CASE(w, h, mb_2, dmb ish, nop, , a, l, "memory")
+__XCHG_CASE(w, , mb_4, dmb ish, nop, , a, l, "memory")
+__XCHG_CASE( , , mb_8, dmb ish, nop, , a, l, "memory")
#undef __XCHG_CASE
@@ -80,13 +80,13 @@ static __always_inline unsigned long __xchg##sfx(unsigned long x, \
{ \
switch (size) { \
case 1: \
- return __xchg_case##sfx##_8(x, ptr); \
+ return __xchg_case##sfx##_1(x, ptr); \
case 2: \
- return __xchg_case##sfx##_16(x, ptr); \
+ return __xchg_case##sfx##_2(x, ptr); \
case 4: \
- return __xchg_case##sfx##_32(x, ptr); \
+ return __xchg_case##sfx##_4(x, ptr); \
case 8: \
- return __xchg_case##sfx##_64(x, ptr); \
+ return __xchg_case##sfx##_8(x, ptr); \
default: \
BUILD_BUG(); \
} \
@@ -123,13 +123,13 @@ static __always_inline unsigned long __cmpxchg##sfx(volatile void *ptr, \
{ \
switch (size) { \
case 1: \
- return __cmpxchg_case##sfx##_8(ptr, (u8)old, new); \
+ return __cmpxchg_case##sfx##_1(ptr, (u8)old, new); \
case 2: \
- return __cmpxchg_case##sfx##_16(ptr, (u16)old, new); \
+ return __cmpxchg_case##sfx##_2(ptr, (u16)old, new); \
case 4: \
- return __cmpxchg_case##sfx##_32(ptr, old, new); \
+ return __cmpxchg_case##sfx##_4(ptr, old, new); \
case 8: \
- return __cmpxchg_case##sfx##_64(ptr, old, new); \
+ return __cmpxchg_case##sfx##_8(ptr, old, new); \
default: \
BUILD_BUG(); \
} \
@@ -197,16 +197,16 @@ __CMPXCHG_GEN(_mb)
__ret; \
})
-#define __CMPWAIT_CASE(w, sfx, sz) \
-static inline void __cmpwait_case_##sz(volatile void *ptr, \
- unsigned long val) \
+#define __CMPWAIT_CASE(w, sz, name) \
+static inline void __cmpwait_case_##name(volatile void *ptr, \
+ unsigned long val) \
{ \
unsigned long tmp; \
\
asm volatile( \
" sevl\n" \
" wfe\n" \
- " ldxr" #sfx "\t%" #w "[tmp], %[v]\n" \
+ " ldxr" #sz "\t%" #w "[tmp], %[v]\n" \
" eor %" #w "[tmp], %" #w "[tmp], %" #w "[val]\n" \
" cbnz %" #w "[tmp], 1f\n" \
" wfe\n" \
@@ -215,10 +215,10 @@ static inline void __cmpwait_case_##sz(volatile void *ptr, \
: [val] "r" (val)); \
}
-__CMPWAIT_CASE(w, b, 8);
-__CMPWAIT_CASE(w, h, 16);
-__CMPWAIT_CASE(w, , 32);
-__CMPWAIT_CASE( , , 64);
+__CMPWAIT_CASE(w, b, 1);
+__CMPWAIT_CASE(w, h, 2);
+__CMPWAIT_CASE(w, , 4);
+__CMPWAIT_CASE( , , 8);
#undef __CMPWAIT_CASE
@@ -229,13 +229,13 @@ static __always_inline void __cmpwait##sfx(volatile void *ptr, \
{ \
switch (size) { \
case 1: \
- return __cmpwait_case##sfx##_8(ptr, (u8)val); \
+ return __cmpwait_case##sfx##_1(ptr, (u8)val); \
case 2: \
- return __cmpwait_case##sfx##_16(ptr, (u16)val); \
+ return __cmpwait_case##sfx##_2(ptr, (u16)val); \
case 4: \
- return __cmpwait_case##sfx##_32(ptr, val); \
+ return __cmpwait_case##sfx##_4(ptr, val); \
case 8: \
- return __cmpwait_case##sfx##_64(ptr, val); \
+ return __cmpwait_case##sfx##_8(ptr, val); \
default: \
BUILD_BUG(); \
} \
diff --git a/arch/arm64/include/asm/cpucaps.h b/arch/arm64/include/asm/cpucaps.h
index df8fe8e..0cfdf8d5 100644
--- a/arch/arm64/include/asm/cpucaps.h
+++ b/arch/arm64/include/asm/cpucaps.h
@@ -55,6 +55,7 @@
#define ARM64_SSBS 34
#define ARM64_WORKAROUND_1542419 35
-#define ARM64_NCAPS 36
+/* kabi: reserve 36 - 62 for future cpu capabilities */
+#define ARM64_NCAPS 62
#endif /* __ASM_CPUCAPS_H */
diff --git a/arch/arm64/include/asm/device.h b/arch/arm64/include/asm/device.h
index 5a5fa47..859a5ca 100644
--- a/arch/arm64/include/asm/device.h
+++ b/arch/arm64/include/asm/device.h
@@ -24,9 +24,18 @@ struct dev_archdata {
const struct dma_map_ops *dev_dma_ops;
#endif
bool dma_coherent;
+#ifdef CONFIG_ARM64_DMA_USE_IOMMU
+ struct dma_iommu_mapping *mapping;
+#endif
};
struct pdev_archdata {
};
+#ifdef CONFIG_ARM64_DMA_USE_IOMMU
+#define to_dma_iommu_mapping(dev) ((dev)->archdata.mapping)
+#else
+#define to_dma_iommu_mapping(dev) NULL
+#endif
+
#endif
diff --git a/arch/arm64/include/asm/dma-contiguous.h b/arch/arm64/include/asm/dma-contiguous.h
new file mode 100644
index 0000000..0896ee1
--- /dev/null
+++ b/arch/arm64/include/asm/dma-contiguous.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2013,2017-2018 The Linux Foundation. All rights reserved.
+ */
+
+#ifndef _ASM_DMA_CONTIGUOUS_H
+#define _ASM_DMA_CONTIGUOUS_H
+
+#ifdef __KERNEL__
+#ifdef CONFIG_DMA_CMA
+
+#include <linux/types.h>
+
+void dma_contiguous_early_fixup(phys_addr_t base, unsigned long size);
+
+#endif
+#endif
+
+#endif
diff --git a/arch/arm64/include/asm/dma-iommu.h b/arch/arm64/include/asm/dma-iommu.h
new file mode 100644
index 0000000..80397db
--- /dev/null
+++ b/arch/arm64/include/asm/dma-iommu.h
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef ASMARM_DMA_IOMMU_H
+#define ASMARM_DMA_IOMMU_H
+
+#ifdef __KERNEL__
+
+#include <linux/err.h>
+#include <linux/mm_types.h>
+#include <linux/scatterlist.h>
+#include <linux/dma-debug.h>
+#include <linux/kref.h>
+#include <linux/dma-mapping-fast.h>
+
+struct dma_iommu_mapping {
+ /* iommu specific data */
+ struct iommu_domain *domain;
+ bool init;
+ struct kref kref;
+ const struct dma_map_ops *ops;
+
+ /* Protects bitmap */
+ spinlock_t lock;
+ void *bitmap;
+ size_t bits;
+ dma_addr_t base;
+
+ struct dma_fast_smmu_mapping *fast;
+};
+
+#ifdef CONFIG_ARM64_DMA_USE_IOMMU
+void arm_iommu_put_dma_cookie(struct iommu_domain *domain);
+#else /* !CONFIG_ARM64_DMA_USE_IOMMU */
+static inline void arm_iommu_put_dma_cookie(struct iommu_domain *domain) {}
+#endif /* CONFIG_ARM64_DMA_USE_IOMMU */
+
+#endif /* __KERNEL__ */
+#endif
diff --git a/arch/arm64/include/asm/elf.h b/arch/arm64/include/asm/elf.h
index 433b955..5f571b2 100644
--- a/arch/arm64/include/asm/elf.h
+++ b/arch/arm64/include/asm/elf.h
@@ -209,11 +209,25 @@ typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
({ \
set_thread_flag(TIF_32BIT); \
})
+#ifdef CONFIG_COMPAT_VDSO
+#define COMPAT_ARCH_DLINFO \
+do { \
+ /* \
+ * Note that we use Elf64_Off instead of elf_addr_t because \
+ * elf_addr_t in compat is defined as Elf32_Addr and casting \
+ * current->mm->context.vdso to it triggers a cast warning of \
+ * cast from pointer to integer of different size. \
+ */ \
+ NEW_AUX_ENT(AT_SYSINFO_EHDR, \
+ (Elf64_Off)current->mm->context.vdso); \
+} while (0)
+#else
#define COMPAT_ARCH_DLINFO
-extern int aarch32_setup_vectors_page(struct linux_binprm *bprm,
- int uses_interp);
+#endif
+extern int aarch32_setup_additional_pages(struct linux_binprm *bprm,
+ int uses_interp);
#define compat_arch_setup_additional_pages \
- aarch32_setup_vectors_page
+ aarch32_setup_additional_pages
#endif /* CONFIG_COMPAT */
diff --git a/arch/arm64/include/asm/kasan.h b/arch/arm64/include/asm/kasan.h
index 8758bb0..b52aacd 100644
--- a/arch/arm64/include/asm/kasan.h
+++ b/arch/arm64/include/asm/kasan.h
@@ -4,12 +4,16 @@
#ifndef __ASSEMBLY__
-#ifdef CONFIG_KASAN
-
#include <linux/linkage.h>
#include <asm/memory.h>
#include <asm/pgtable-types.h>
+#define arch_kasan_set_tag(addr, tag) __tag_set(addr, tag)
+#define arch_kasan_reset_tag(addr) __tag_reset(addr)
+#define arch_kasan_get_tag(addr) __tag_get(addr)
+
+#ifdef CONFIG_KASAN
+
/*
* KASAN_SHADOW_START: beginning of the kernel virtual addresses.
* KASAN_SHADOW_END: KASAN_SHADOW_START + 1/N of kernel virtual addresses,
diff --git a/arch/arm64/include/asm/kvm_hyp.h b/arch/arm64/include/asm/kvm_hyp.h
index 5f52d6d..d1a79a5 100644
--- a/arch/arm64/include/asm/kvm_hyp.h
+++ b/arch/arm64/include/asm/kvm_hyp.h
@@ -28,7 +28,7 @@
({ \
u64 reg; \
asm volatile(ALTERNATIVE("mrs %0, " __stringify(r##nvh),\
- "mrs_s %0, " __stringify(r##vh),\
+ __mrs_s("%0", r##vh), \
ARM64_HAS_VIRT_HOST_EXTN) \
: "=r" (reg)); \
reg; \
@@ -38,7 +38,7 @@
do { \
u64 __val = (u64)(v); \
asm volatile(ALTERNATIVE("msr " __stringify(r##nvh) ", %x0",\
- "msr_s " __stringify(r##vh) ", %x0",\
+ __msr_s(r##vh, "%x0"), \
ARM64_HAS_VIRT_HOST_EXTN) \
: : "rZ" (__val)); \
} while (0)
diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h
index 56562ff..3e0f9e3 100644
--- a/arch/arm64/include/asm/memory.h
+++ b/arch/arm64/include/asm/memory.h
@@ -74,19 +74,13 @@
#define KERNEL_END _end
/*
- * KASAN requires 1/8th of the kernel virtual address space for the shadow
- * region. KASAN can bloat the stack significantly, so double the (minimum)
- * stack size when KASAN is in use, and then double it again if KASAN_EXTRA is
- * on.
+ * Generic and tag-based KASAN require 1/8th and 1/16th of the kernel virtual
+ * address space for the shadow region respectively. They can bloat the stack
+ * significantly, so double the (minimum) stack size when they are in use.
*/
#ifdef CONFIG_KASAN
-#define KASAN_SHADOW_SCALE_SHIFT 3
#define KASAN_SHADOW_SIZE (UL(1) << (VA_BITS - KASAN_SHADOW_SCALE_SHIFT))
-#ifdef CONFIG_KASAN_EXTRA
-#define KASAN_THREAD_SHIFT 2
-#else
#define KASAN_THREAD_SHIFT 1
-#endif /* CONFIG_KASAN_EXTRA */
#else
#define KASAN_SHADOW_SIZE (0)
#define KASAN_THREAD_SHIFT 0
@@ -218,6 +212,36 @@ static inline unsigned long kaslr_offset(void)
#define PHYS_PFN_OFFSET (PHYS_OFFSET >> PAGE_SHIFT)
/*
+ * When dealing with data aborts, watchpoints, or instruction traps we may end
+ * up with a tagged userland pointer. Clear the tag to get a sane pointer to
+ * pass on to access_ok(), for instance.
+ */
+#define __untagged_addr(addr) \
+ ((__force __typeof__(addr))sign_extend64((__force u64)(addr), 55))
+
+#define untagged_addr(addr) ({ \
+ u64 __addr = (__force u64)(addr); \
+ __addr &= __untagged_addr(__addr); \
+ (__force __typeof__(addr))__addr; \
+})
+
+#ifdef CONFIG_KASAN_SW_TAGS
+#define __tag_shifted(tag) ((u64)(tag) << 56)
+#define __tag_reset(addr) __untagged_addr(addr)
+#define __tag_get(addr) (__u8)((u64)(addr) >> 56)
+#else
+#define __tag_shifted(tag) 0UL
+#define __tag_reset(addr) (addr)
+#define __tag_get(addr) 0
+#endif
+
+static inline const void *__tag_set(const void *addr, u8 tag)
+{
+ u64 __addr = (u64)addr & ~__tag_shifted(0xff);
+ return (const void *)(__addr | __tag_shifted(tag));
+}
+
+/*
* Physical vs virtual RAM address space conversion. These are
* private definitions which should NOT be used outside memory.h
* files. Use virt_to_phys/phys_to_virt/__pa/__va instead.
@@ -288,6 +312,22 @@ static inline void *phys_to_virt(phys_addr_t x)
#define sym_to_pfn(x) __phys_to_pfn(__pa_symbol(x))
/*
+ * With non-canonical CFI jump tables, the compiler replaces function
+ * address references with the address of the function's CFI jump
+ * table entry. This results in __pa_symbol(function) returning the
+ * physical address of the jump table entry, which can lead to address
+ * space confusion since the jump table points to the function's
+ * virtual address. Therefore, use inline assembly to ensure we are
+ * always taking the address of the actual function.
+ */
+#define __pa_function(x) ({ \
+ unsigned long addr; \
+ asm("adrp %0, " __stringify(x) "\n\t" \
+ "add %0, %0, :lo12:" __stringify(x) : "=r" (addr)); \
+ __pa_symbol(addr); \
+})
+
+/*
* virt_to_page(k) convert a _valid_ virtual address to struct page *
* virt_addr_valid(k) indicates whether a virtual address is valid
*/
@@ -300,7 +340,14 @@ static inline void *phys_to_virt(phys_addr_t x)
#define __virt_to_pgoff(kaddr) (((u64)(kaddr) & ~PAGE_OFFSET) / PAGE_SIZE * sizeof(struct page))
#define __page_to_voff(kaddr) (((u64)(kaddr) & ~VMEMMAP_START) * PAGE_SIZE / sizeof(struct page))
-#define page_to_virt(page) ((void *)((__page_to_voff(page)) | PAGE_OFFSET))
+#define page_to_virt(page) ({ \
+ unsigned long __addr = \
+ ((__page_to_voff(page)) | PAGE_OFFSET); \
+ const void *__addr_tag = \
+ __tag_set((void *)__addr, page_kasan_tag(page)); \
+ ((void *)__addr_tag); \
+})
+
#define virt_to_page(vaddr) ((struct page *)((__virt_to_pgoff(vaddr)) | VMEMMAP_START))
#define _virt_addr_valid(kaddr) pfn_valid((((u64)(kaddr) & ~PAGE_OFFSET) \
@@ -308,9 +355,10 @@ static inline void *phys_to_virt(phys_addr_t x)
#endif
#endif
-#define _virt_addr_is_linear(kaddr) (((u64)(kaddr)) >= PAGE_OFFSET)
-#define virt_addr_valid(kaddr) (_virt_addr_is_linear(kaddr) && \
- _virt_addr_valid(kaddr))
+#define _virt_addr_is_linear(kaddr) \
+ (__tag_reset((u64)(kaddr)) >= PAGE_OFFSET)
+#define virt_addr_valid(kaddr) \
+ (_virt_addr_is_linear(kaddr) && _virt_addr_valid(kaddr))
#include <asm-generic/memory_model.h>
diff --git a/arch/arm64/include/asm/mmu.h b/arch/arm64/include/asm/mmu.h
index dd320df..4f74601 100644
--- a/arch/arm64/include/asm/mmu.h
+++ b/arch/arm64/include/asm/mmu.h
@@ -92,7 +92,7 @@ extern void init_mem_pgprot(void);
extern void create_pgd_mapping(struct mm_struct *mm, phys_addr_t phys,
unsigned long virt, phys_addr_t size,
pgprot_t prot, bool page_mappings_only);
-extern void *fixmap_remap_fdt(phys_addr_t dt_phys);
+extern void *fixmap_remap_fdt(phys_addr_t dt_phys, int *size, pgprot_t prot);
extern void mark_linear_text_alias_ro(void);
#endif /* !__ASSEMBLY__ */
diff --git a/arch/arm64/include/asm/mmu_context.h b/arch/arm64/include/asm/mmu_context.h
index 39ec0b8..95d5d75 100644
--- a/arch/arm64/include/asm/mmu_context.h
+++ b/arch/arm64/include/asm/mmu_context.h
@@ -141,7 +141,7 @@ static inline void cpu_install_idmap(void)
* Atomically replaces the active TTBR1_EL1 PGD with a new VA-compatible PGD,
* avoiding the possibility of conflicting TLB entries being allocated.
*/
-static inline void cpu_replace_ttbr1(pgd_t *pgdp)
+static inline void __nocfi cpu_replace_ttbr1(pgd_t *pgdp)
{
typedef void (ttbr_replace_func)(phys_addr_t);
extern ttbr_replace_func idmap_cpu_replace_ttbr1;
@@ -149,7 +149,7 @@ static inline void cpu_replace_ttbr1(pgd_t *pgdp)
phys_addr_t pgd_phys = virt_to_phys(pgdp);
- replace_phys = (void *)__pa_symbol(idmap_cpu_replace_ttbr1);
+ replace_phys = (void *)__pa_function(idmap_cpu_replace_ttbr1);
cpu_install_idmap();
replace_phys(pgd_phys);
diff --git a/arch/arm64/include/asm/page.h b/arch/arm64/include/asm/page.h
index 60d02c8..6b9c302 100644
--- a/arch/arm64/include/asm/page.h
+++ b/arch/arm64/include/asm/page.h
@@ -32,6 +32,10 @@ extern void __cpu_copy_user_page(void *to, const void *from,
extern void copy_page(void *to, const void *from);
extern void clear_page(void *to);
+#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \
+ alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr)
+#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
+
#define clear_user_page(addr,vaddr,pg) __cpu_clear_user_page(addr, vaddr)
#define copy_user_page(to,from,vaddr,pg) __cpu_copy_user_page(to, from, vaddr)
diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h
index fd208ea..483acee 100644
--- a/arch/arm64/include/asm/pgtable-hwdef.h
+++ b/arch/arm64/include/asm/pgtable-hwdef.h
@@ -289,6 +289,7 @@
#define TCR_A1 (UL(1) << 22)
#define TCR_ASID16 (UL(1) << 36)
#define TCR_TBI0 (UL(1) << 37)
+#define TCR_TBI1 (UL(1) << 38)
#define TCR_HA (UL(1) << 39)
#define TCR_HD (UL(1) << 40)
#define TCR_NFD1 (UL(1) << 54)
diff --git a/arch/arm64/include/asm/proc-fns.h b/arch/arm64/include/asm/proc-fns.h
index 16cef2e..2408fb6 100644
--- a/arch/arm64/include/asm/proc-fns.h
+++ b/arch/arm64/include/asm/proc-fns.h
@@ -28,8 +28,10 @@
struct mm_struct;
struct cpu_suspend_ctx;
+extern void cpu_cache_off(void);
extern void cpu_do_idle(void);
extern void cpu_do_switch_mm(unsigned long pgd_phys, struct mm_struct *mm);
+extern void cpu_reset(unsigned long addr) __attribute__((noreturn));
extern void cpu_do_suspend(struct cpu_suspend_ctx *ptr);
extern u64 cpu_do_resume(phys_addr_t ptr, u64 idmap_ttbr);
diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h
index 773ea8e..e9af2b4 100644
--- a/arch/arm64/include/asm/processor.h
+++ b/arch/arm64/include/asm/processor.h
@@ -40,6 +40,8 @@
#include <linux/stddef.h>
#include <linux/string.h>
+#include <vdso/processor.h>
+
#include <asm/alternative.h>
#include <asm/cpufeature.h>
#include <asm/hw_breakpoint.h>
@@ -53,7 +55,7 @@
* TASK_UNMAPPED_BASE - the lower boundary of the mmap VM area.
*/
#ifdef CONFIG_COMPAT
-#ifdef CONFIG_ARM64_64K_PAGES
+#if defined(CONFIG_ARM64_64K_PAGES) && defined(CONFIG_KUSER_HELPERS)
/*
* With CONFIG_ARM64_64K_PAGES enabled, the last page is occupied
* by the compat vectors page.
@@ -227,11 +229,6 @@ extern void release_thread(struct task_struct *);
unsigned long get_wchan(struct task_struct *p);
-static inline void cpu_relax(void)
-{
- asm volatile("yield" ::: "memory");
-}
-
/* Thread switching */
extern struct task_struct *cpu_switch_to(struct task_struct *prev,
struct task_struct *next);
@@ -291,6 +288,14 @@ extern void __init minsigstksz_setup(void);
#define SVE_SET_VL(arg) sve_set_current_vl(arg)
#define SVE_GET_VL() sve_get_current_vl()
+#ifdef CONFIG_ARM64_TAGGED_ADDR_ABI
+/* PR_{SET,GET}_TAGGED_ADDR_CTRL prctl */
+long set_tagged_addr_ctrl(unsigned long arg);
+long get_tagged_addr_ctrl(void);
+#define SET_TAGGED_ADDR_CTRL(arg) set_tagged_addr_ctrl(arg)
+#define GET_TAGGED_ADDR_CTRL() get_tagged_addr_ctrl()
+#endif
+
/*
* For CONFIG_GCC_PLUGIN_STACKLEAK
*
diff --git a/arch/arm64/include/asm/scs.h b/arch/arm64/include/asm/scs.h
new file mode 100644
index 0000000..c50d2b0
--- /dev/null
+++ b/arch/arm64/include/asm/scs.h
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_SCS_H
+#define _ASM_SCS_H
+
+#ifndef __ASSEMBLY__
+
+#include <linux/scs.h>
+
+#ifdef CONFIG_SHADOW_CALL_STACK
+
+extern void scs_init_irq(void);
+
+static __always_inline void scs_save(struct task_struct *tsk)
+{
+ void *s;
+
+ asm volatile("mov %0, x18" : "=r" (s));
+ task_set_scs(tsk, s);
+}
+
+static inline void scs_overflow_check(struct task_struct *tsk)
+{
+ if (unlikely(scs_corrupted(tsk)))
+ panic("corrupted shadow stack detected inside scheduler\n");
+}
+
+#else /* CONFIG_SHADOW_CALL_STACK */
+
+static inline void scs_init_irq(void) {}
+static inline void scs_save(struct task_struct *tsk) {}
+static inline void scs_overflow_check(struct task_struct *tsk) {}
+
+#endif /* CONFIG_SHADOW_CALL_STACK */
+
+#endif /* __ASSEMBLY __ */
+
+#endif /* _ASM_SCS_H */
diff --git a/arch/arm64/include/asm/signal32.h b/arch/arm64/include/asm/signal32.h
index 81abea0..1f05268 100644
--- a/arch/arm64/include/asm/signal32.h
+++ b/arch/arm64/include/asm/signal32.h
@@ -20,7 +20,51 @@
#ifdef CONFIG_COMPAT
#include <linux/compat.h>
-#define AARCH32_KERN_SIGRET_CODE_OFFSET 0x500
+struct compat_sigcontext {
+ /* We always set these two fields to 0 */
+ compat_ulong_t trap_no;
+ compat_ulong_t error_code;
+
+ compat_ulong_t oldmask;
+ compat_ulong_t arm_r0;
+ compat_ulong_t arm_r1;
+ compat_ulong_t arm_r2;
+ compat_ulong_t arm_r3;
+ compat_ulong_t arm_r4;
+ compat_ulong_t arm_r5;
+ compat_ulong_t arm_r6;
+ compat_ulong_t arm_r7;
+ compat_ulong_t arm_r8;
+ compat_ulong_t arm_r9;
+ compat_ulong_t arm_r10;
+ compat_ulong_t arm_fp;
+ compat_ulong_t arm_ip;
+ compat_ulong_t arm_sp;
+ compat_ulong_t arm_lr;
+ compat_ulong_t arm_pc;
+ compat_ulong_t arm_cpsr;
+ compat_ulong_t fault_address;
+};
+
+struct compat_ucontext {
+ compat_ulong_t uc_flags;
+ compat_uptr_t uc_link;
+ compat_stack_t uc_stack;
+ struct compat_sigcontext uc_mcontext;
+ compat_sigset_t uc_sigmask;
+ int __unused[32 - (sizeof(compat_sigset_t) / sizeof(int))];
+ compat_ulong_t uc_regspace[128] __attribute__((__aligned__(8)));
+};
+
+struct compat_sigframe {
+ struct compat_ucontext uc;
+ compat_ulong_t retcode[2];
+};
+
+struct compat_rt_sigframe {
+ struct compat_siginfo info;
+ struct compat_sigframe sig;
+};
int compat_setup_frame(int usig, struct ksignal *ksig, sigset_t *set,
struct pt_regs *regs);
diff --git a/arch/arm64/include/asm/smp.h b/arch/arm64/include/asm/smp.h
index f82b447..79a9aa2 100644
--- a/arch/arm64/include/asm/smp.h
+++ b/arch/arm64/include/asm/smp.h
@@ -72,6 +72,12 @@ extern void set_smp_cross_call(void (*)(const struct cpumask *, unsigned int));
extern void (*__smp_cross_call)(const struct cpumask *, unsigned int);
/*
+ * Provide a function to set a callback function pointer for updating the ipi
+ * history.
+ */
+extern void set_update_ipi_history_callback(void (*fn)(int));
+
+/*
* Called from the secondary holding pen, this is the secondary CPU entry point.
*/
asmlinkage void secondary_start_kernel(void);
diff --git a/arch/arm64/include/asm/stacktrace.h b/arch/arm64/include/asm/stacktrace.h
index e86737b..8910f18 100644
--- a/arch/arm64/include/asm/stacktrace.h
+++ b/arch/arm64/include/asm/stacktrace.h
@@ -54,6 +54,10 @@ extern void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk);
DECLARE_PER_CPU(unsigned long *, irq_stack_ptr);
+#ifdef CONFIG_SHADOW_CALL_STACK
+DECLARE_PER_CPU(unsigned long *, irq_shadow_call_stack_ptr);
+#endif
+
static inline bool on_irq_stack(unsigned long sp,
struct stack_info *info)
{
diff --git a/arch/arm64/include/asm/suspend.h b/arch/arm64/include/asm/suspend.h
index 8939c87..0cde2f4 100644
--- a/arch/arm64/include/asm/suspend.h
+++ b/arch/arm64/include/asm/suspend.h
@@ -2,7 +2,7 @@
#ifndef __ASM_SUSPEND_H
#define __ASM_SUSPEND_H
-#define NR_CTX_REGS 12
+#define NR_CTX_REGS 13
#define NR_CALLEE_SAVED_REGS 12
/*
diff --git a/arch/arm64/include/asm/syscall_wrapper.h b/arch/arm64/include/asm/syscall_wrapper.h
index 507d0ee..e9330f8 100644
--- a/arch/arm64/include/asm/syscall_wrapper.h
+++ b/arch/arm64/include/asm/syscall_wrapper.h
@@ -8,6 +8,8 @@
#ifndef __ASM_SYSCALL_WRAPPER_H
#define __ASM_SYSCALL_WRAPPER_H
+struct pt_regs;
+
#define SC_ARM64_REGS_TO_ARGS(x, ...) \
__MAP(x,__SC_ARGS \
,,regs->regs[0],,regs->regs[1],,regs->regs[2] \
@@ -35,8 +37,11 @@
ALLOW_ERROR_INJECTION(__arm64_compat_sys_##sname, ERRNO); \
asmlinkage long __arm64_compat_sys_##sname(const struct pt_regs *__unused)
-#define COND_SYSCALL_COMPAT(name) \
- cond_syscall(__arm64_compat_sys_##name);
+#define COND_SYSCALL_COMPAT(name) \
+ asmlinkage __weak long __arm64_compat_sys_##name(const struct pt_regs *__unused)\
+ { \
+ return sys_ni_syscall(); \
+ }
#define COMPAT_SYS_NI(name) \
SYSCALL_ALIAS(__arm64_compat_sys_##name, sys_ni_posix_timers);
@@ -70,7 +75,11 @@
#endif
#ifndef COND_SYSCALL
-#define COND_SYSCALL(name) cond_syscall(__arm64_sys_##name)
+#define COND_SYSCALL(name) \
+ asmlinkage __weak long __arm64_sys_##name(const struct pt_regs *regs) \
+ { \
+ return sys_ni_syscall(); \
+ }
#endif
#ifndef SYS_NI
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index ed99d94..a41a5c1 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -86,16 +86,26 @@
#endif /* CONFIG_BROKEN_GAS_INST */
-#define REG_PSTATE_PAN_IMM sys_reg(0, 0, 4, 0, 4)
-#define REG_PSTATE_UAO_IMM sys_reg(0, 0, 4, 0, 3)
-#define REG_PSTATE_SSBS_IMM sys_reg(0, 3, 4, 0, 1)
+/*
+ * Instructions for modifying PSTATE fields.
+ * As per Arm ARM for v8-A, Section "C.5.1.3 op0 == 0b00, architectural hints,
+ * barriers and CLREX, and PSTATE access", ARM DDI 0487 C.a, system instructions
+ * for accessing PSTATE fields have the following encoding:
+ * Op0 = 0, CRn = 4
+ * Op1, Op2 encodes the PSTATE field modified and defines the constraints.
+ * CRm = Imm4 for the instruction.
+ * Rt = 0x1f
+ */
+#define pstate_field(op1, op2) ((op1) << Op1_shift | (op2) << Op2_shift)
+#define PSTATE_Imm_shift CRm_shift
-#define SET_PSTATE_PAN(x) __emit_inst(0xd5000000 | REG_PSTATE_PAN_IMM | \
- (!!x)<<8 | 0x1f)
-#define SET_PSTATE_UAO(x) __emit_inst(0xd5000000 | REG_PSTATE_UAO_IMM | \
- (!!x)<<8 | 0x1f)
-#define SET_PSTATE_SSBS(x) __emit_inst(0xd5000000 | REG_PSTATE_SSBS_IMM | \
- (!!x)<<8 | 0x1f)
+#define PSTATE_PAN pstate_field(0, 4)
+#define PSTATE_UAO pstate_field(0, 3)
+#define PSTATE_SSBS pstate_field(3, 1)
+
+#define SET_PSTATE_PAN(x) __emit_inst(0xd500401f | PSTATE_PAN | ((!!x) << PSTATE_Imm_shift))
+#define SET_PSTATE_UAO(x) __emit_inst(0xd500401f | PSTATE_UAO | ((!!x) << PSTATE_Imm_shift))
+#define SET_PSTATE_SSBS(x) __emit_inst(0xd500401f | PSTATE_SSBS | ((!!x) << PSTATE_Imm_shift))
#define SYS_DC_ISW sys_insn(1, 0, 7, 6, 2)
#define SYS_DC_CSW sys_insn(1, 0, 7, 10, 2)
@@ -697,20 +707,39 @@
#include <linux/build_bug.h>
#include <linux/types.h>
-asm(
-" .irp num,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30\n"
-" .equ .L__reg_num_x\\num, \\num\n"
-" .endr\n"
+#define __DEFINE_MRS_MSR_S_REGNUM \
+" .irp num,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30\n" \
+" .equ .L__reg_num_x\\num, \\num\n" \
+" .endr\n" \
" .equ .L__reg_num_xzr, 31\n"
-"\n"
-" .macro mrs_s, rt, sreg\n"
- __emit_inst(0xd5200000|(\\sreg)|(.L__reg_num_\\rt))
+
+#define DEFINE_MRS_S \
+ __DEFINE_MRS_MSR_S_REGNUM \
+" .macro mrs_s, rt, sreg\n" \
+ __emit_inst(0xd5200000|(\\sreg)|(.L__reg_num_\\rt)) \
" .endm\n"
-"\n"
-" .macro msr_s, sreg, rt\n"
- __emit_inst(0xd5000000|(\\sreg)|(.L__reg_num_\\rt))
+
+#define DEFINE_MSR_S \
+ __DEFINE_MRS_MSR_S_REGNUM \
+" .macro msr_s, sreg, rt\n" \
+ __emit_inst(0xd5000000|(\\sreg)|(.L__reg_num_\\rt)) \
" .endm\n"
-);
+
+#define UNDEFINE_MRS_S \
+" .purgem mrs_s\n"
+
+#define UNDEFINE_MSR_S \
+" .purgem msr_s\n"
+
+#define __mrs_s(v, r) \
+ DEFINE_MRS_S \
+" mrs_s " v ", " __stringify(r) "\n" \
+ UNDEFINE_MRS_S
+
+#define __msr_s(r, v) \
+ DEFINE_MSR_S \
+" msr_s " __stringify(r) ", " v "\n" \
+ UNDEFINE_MSR_S
/*
* Unlike read_cpuid, calls to read_sysreg are never expected to be
@@ -738,13 +767,13 @@ asm(
*/
#define read_sysreg_s(r) ({ \
u64 __val; \
- asm volatile("mrs_s %0, " __stringify(r) : "=r" (__val)); \
+ asm volatile(__mrs_s("%0", r) : "=r" (__val)); \
__val; \
})
#define write_sysreg_s(v, r) do { \
u64 __val = (u64)(v); \
- asm volatile("msr_s " __stringify(r) ", %x0" : : "rZ" (__val)); \
+ asm volatile(__msr_s(r, "%x0") : : "rZ" (__val)); \
} while (0)
/*
diff --git a/arch/arm64/include/asm/system_misc.h b/arch/arm64/include/asm/system_misc.h
index 28893a0..8976f4d 100644
--- a/arch/arm64/include/asm/system_misc.h
+++ b/arch/arm64/include/asm/system_misc.h
@@ -44,6 +44,7 @@ extern void show_pte(unsigned long addr);
extern void __show_regs(struct pt_regs *);
extern void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
+extern char* (*arch_read_hardware_id)(void);
int handle_guest_sea(phys_addr_t addr, unsigned int esr);
diff --git a/arch/arm64/include/asm/thread_info.h b/arch/arm64/include/asm/thread_info.h
index 69ac526..e445e87 100644
--- a/arch/arm64/include/asm/thread_info.h
+++ b/arch/arm64/include/asm/thread_info.h
@@ -43,6 +43,9 @@ struct thread_info {
u64 ttbr0; /* saved TTBR0_EL1 */
#endif
int preempt_count; /* 0 => preemptable, <0 => bug */
+#ifdef CONFIG_SHADOW_CALL_STACK
+ void *shadow_call_stack;
+#endif
};
#define thread_saved_pc(tsk) \
@@ -89,6 +92,7 @@ void arch_release_task_struct(struct task_struct *tsk);
#define TIF_SVE 23 /* Scalable Vector Extension in use */
#define TIF_SVE_VL_INHERIT 24 /* Inherit sve_vl_onexec across exec */
#define TIF_SSBD 25 /* Wants SSB mitigation */
+#define TIF_TAGGED_ADDR 26 /* Allow tagged user addresses */
#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
diff --git a/arch/arm64/include/asm/topology.h b/arch/arm64/include/asm/topology.h
index 49a0fee..8e0a96d 100644
--- a/arch/arm64/include/asm/topology.h
+++ b/arch/arm64/include/asm/topology.h
@@ -42,9 +42,15 @@ int pcibus_to_node(struct pci_bus *bus);
/* Replace task scheduler's default frequency-invariant accounting */
#define arch_scale_freq_capacity topology_get_freq_scale
+/* Replace task scheduler's default max-frequency-invariant accounting */
+#define arch_scale_max_freq_capacity topology_get_max_freq_scale
+
/* Replace task scheduler's default cpu-invariant accounting */
#define arch_scale_cpu_capacity topology_get_cpu_scale
+/* Enable topology flag updates */
+#define arch_update_cpu_topology topology_update_cpu_topology
+
#include <asm-generic/topology.h>
#endif /* _ASM_ARM_TOPOLOGY_H */
diff --git a/arch/arm64/include/asm/traps.h b/arch/arm64/include/asm/traps.h
index c320f3b..8c64bf7 100644
--- a/arch/arm64/include/asm/traps.h
+++ b/arch/arm64/include/asm/traps.h
@@ -120,4 +120,12 @@ static inline u32 arm64_ras_serror_get_severity(u32 esr)
bool arm64_is_fatal_ras_serror(struct pt_regs *regs, unsigned int esr);
void __noreturn arm64_serror_panic(struct pt_regs *regs, u32 esr);
+
+extern int (*do_tlb_conf_fault_cb)(unsigned long addr,
+ unsigned int esr,
+ struct pt_regs *regs);
+extern int do_tlb_conf_fault(unsigned long addr,
+ unsigned int esr,
+ struct pt_regs *regs);
+
#endif
diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h
index e66b0fc..16969bc 100644
--- a/arch/arm64/include/asm/uaccess.h
+++ b/arch/arm64/include/asm/uaccess.h
@@ -76,6 +76,15 @@ static inline unsigned long __range_ok(const void __user *addr, unsigned long si
{
unsigned long ret, limit = current_thread_info()->addr_limit;
+ /*
+ * Asynchronous I/O running in a kernel thread does not have the
+ * TIF_TAGGED_ADDR flag of the process owning the mm, so always untag
+ * the user address before checking.
+ */
+ if (IS_ENABLED(CONFIG_ARM64_TAGGED_ADDR_ABI) &&
+ (current->flags & PF_KTHREAD || test_thread_flag(TIF_TAGGED_ADDR)))
+ addr = untagged_addr(addr);
+
__chk_user_ptr(addr);
asm volatile(
// A + B <= C + 1 for all A,B,C, in four easy steps:
@@ -97,13 +106,6 @@ static inline unsigned long __range_ok(const void __user *addr, unsigned long si
return ret;
}
-/*
- * When dealing with data aborts, watchpoints, or instruction traps we may end
- * up with a tagged userland pointer. Clear the tag to get a sane pointer to
- * pass on to access_ok(), for instance.
- */
-#define untagged_addr(addr) sign_extend64(addr, 55)
-
#define access_ok(type, addr, size) __range_ok(addr, size)
#define user_addr_max get_fs
@@ -236,7 +238,8 @@ static inline void uaccess_enable_not_uao(void)
/*
* Sanitise a uaccess pointer such that it becomes NULL if above the
- * current addr_limit.
+ * current addr_limit. In case the pointer is tagged (has the top byte set),
+ * untag the pointer before checking.
*/
#define uaccess_mask_ptr(ptr) (__typeof__(ptr))__uaccess_mask_ptr(ptr)
static inline void __user *__uaccess_mask_ptr(const void __user *ptr)
@@ -244,10 +247,11 @@ static inline void __user *__uaccess_mask_ptr(const void __user *ptr)
void __user *safe_ptr;
asm volatile(
- " bics xzr, %1, %2\n"
+ " bics xzr, %3, %2\n"
" csel %0, %1, xzr, eq\n"
: "=&r" (safe_ptr)
- : "r" (ptr), "r" (current_thread_info()->addr_limit)
+ : "r" (ptr), "r" (current_thread_info()->addr_limit),
+ "r" (untagged_addr(ptr))
: "cc");
csdb();
diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h
index d520518..b4910b4 100644
--- a/arch/arm64/include/asm/unistd.h
+++ b/arch/arm64/include/asm/unistd.h
@@ -33,8 +33,13 @@
#define __NR_compat_exit 1
#define __NR_compat_read 3
#define __NR_compat_write 4
+#define __NR_compat_gettimeofday 78
#define __NR_compat_sigreturn 119
#define __NR_compat_rt_sigreturn 173
+#define __NR_compat_clock_gettime 263
+#define __NR_compat_clock_getres 264
+#define __NR_compat_clock_gettime64 403
+#define __NR_compat_clock_getres_time64 406
/*
* The following SVCs are ARM private.
@@ -44,7 +49,7 @@
#define __ARM_NR_compat_set_tls (__ARM_NR_COMPAT_BASE + 5)
#define __ARM_NR_COMPAT_END (__ARM_NR_COMPAT_BASE + 0x800)
-#define __NR_compat_syscalls 399
+#define __NR_compat_syscalls 435
#endif
#define __ARCH_WANT_SYS_CLONE
diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h
index 2cd6dcf..d27ae61 100644
--- a/arch/arm64/include/asm/unistd32.h
+++ b/arch/arm64/include/asm/unistd32.h
@@ -819,6 +819,10 @@ __SYSCALL(__NR_pkey_free, sys_pkey_free)
__SYSCALL(__NR_statx, sys_statx)
#define __NR_rseq 398
__SYSCALL(__NR_rseq, sys_rseq)
+#define __NR_pidfd_send_signal 424
+__SYSCALL(__NR_pidfd_send_signal, sys_pidfd_send_signal)
+#define __NR_pidfd_open 434
+__SYSCALL(__NR_pidfd_open, sys_pidfd_open)
/*
* Please add new compat syscalls above this comment and update
diff --git a/arch/arm64/include/asm/vdso.h b/arch/arm64/include/asm/vdso.h
index 839ce00..a08cc3c 100644
--- a/arch/arm64/include/asm/vdso.h
+++ b/arch/arm64/include/asm/vdso.h
@@ -28,10 +28,14 @@
#ifndef __ASSEMBLY__
#include <generated/vdso-offsets.h>
+#ifdef CONFIG_COMPAT_VDSO
+#include <generated/vdso32-offsets.h>
+#endif
-#define VDSO_SYMBOL(base, name) \
-({ \
- (void *)(vdso_offset_##name - VDSO_LBASE + (unsigned long)(base)); \
+#define VDSO_SYMBOL(base, name) \
+({ \
+ (void *)((vdso_offset_##name & ~1UL) - VDSO_LBASE + \
+ (unsigned long)(base)); \
})
#endif /* !__ASSEMBLY__ */
diff --git a/arch/arm64/include/asm/vdso/clocksource.h b/arch/arm64/include/asm/vdso/clocksource.h
new file mode 100644
index 0000000..1a47767
--- /dev/null
+++ b/arch/arm64/include/asm/vdso/clocksource.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_VDSOCLOCKSOURCE_H
+#define __ASM_VDSOCLOCKSOURCE_H
+
+struct arch_clocksource_data {
+ bool vdso_direct; /* Usable for direct VDSO access? */
+};
+
+#endif
diff --git a/arch/arm64/include/asm/vdso/compat_barrier.h b/arch/arm64/include/asm/vdso/compat_barrier.h
new file mode 100644
index 0000000..3fd8fd6
--- /dev/null
+++ b/arch/arm64/include/asm/vdso/compat_barrier.h
@@ -0,0 +1,44 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2018 ARM Limited
+ */
+#ifndef __COMPAT_BARRIER_H
+#define __COMPAT_BARRIER_H
+
+#ifndef __ASSEMBLY__
+/*
+ * Warning: This code is meant to be used with
+ * ENABLE_COMPAT_VDSO only.
+ */
+#ifndef ENABLE_COMPAT_VDSO
+#error This header is meant to be used with ENABLE_COMPAT_VDSO only
+#endif
+
+#ifdef dmb
+#undef dmb
+#endif
+
+#define dmb(option) __asm__ __volatile__ ("dmb " #option : : : "memory")
+
+#if __LINUX_ARM_ARCH__ >= 8 && defined(CONFIG_AS_DMB_ISHLD)
+#define aarch32_smp_mb() dmb(ish)
+#define aarch32_smp_rmb() dmb(ishld)
+#define aarch32_smp_wmb() dmb(ishst)
+#else
+#define aarch32_smp_mb() dmb(ish)
+#define aarch32_smp_rmb() aarch32_smp_mb()
+#define aarch32_smp_wmb() dmb(ishst)
+#endif
+
+
+#undef smp_mb
+#undef smp_rmb
+#undef smp_wmb
+
+#define smp_mb() aarch32_smp_mb()
+#define smp_rmb() aarch32_smp_rmb()
+#define smp_wmb() aarch32_smp_wmb()
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* __COMPAT_BARRIER_H */
diff --git a/arch/arm64/include/asm/vdso/compat_gettimeofday.h b/arch/arm64/include/asm/vdso/compat_gettimeofday.h
new file mode 100644
index 0000000..7e7d70f
--- /dev/null
+++ b/arch/arm64/include/asm/vdso/compat_gettimeofday.h
@@ -0,0 +1,126 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2018 ARM Limited
+ */
+#ifndef __ASM_VDSO_GETTIMEOFDAY_H
+#define __ASM_VDSO_GETTIMEOFDAY_H
+
+#ifndef __ASSEMBLY__
+
+#include <asm/unistd.h>
+#include <asm/errno.h>
+
+#include <asm/vdso/compat_barrier.h>
+
+#define __VDSO_USE_SYSCALL ULLONG_MAX
+
+#define VDSO_HAS_CLOCK_GETRES 1
+
+#define VDSO_HAS_TIME 1
+
+#define BUILD_VDSO32 1
+
+static __always_inline
+int gettimeofday_fallback(struct __kernel_old_timeval *_tv,
+ struct timezone *_tz)
+{
+ register struct timezone *tz asm("r1") = _tz;
+ register struct __kernel_old_timeval *tv asm("r0") = _tv;
+ register long ret asm ("r0");
+ register long nr asm("r7") = __NR_compat_gettimeofday;
+
+ asm volatile(
+ " swi #0\n"
+ : "=r" (ret)
+ : "r" (tv), "r" (tz), "r" (nr)
+ : "memory");
+
+ return ret;
+}
+
+static __always_inline
+long clock_gettime_fallback(clockid_t _clkid, struct __kernel_timespec *_ts)
+{
+ register struct __kernel_timespec *ts asm("r1") = _ts;
+ register clockid_t clkid asm("r0") = _clkid;
+ register long ret asm ("r0");
+ register long nr asm("r7") = __NR_compat_clock_gettime;
+
+ asm volatile(
+ " swi #0\n"
+ : "=r" (ret)
+ : "r" (clkid), "r" (ts), "r" (nr)
+ : "memory");
+
+ return ret;
+}
+
+static __always_inline
+int clock_getres_fallback(clockid_t _clkid, struct __kernel_timespec *_ts)
+{
+ register struct __kernel_timespec *ts asm("r1") = _ts;
+ register clockid_t clkid asm("r0") = _clkid;
+ register long ret asm ("r0");
+ register long nr asm("r7") = __NR_compat_clock_getres;
+
+ asm volatile(
+ " swi #0\n"
+ : "=r" (ret)
+ : "r" (clkid), "r" (ts), "r" (nr)
+ : "memory");
+
+ return ret;
+}
+
+static __always_inline u64 __arch_get_hw_counter(s32 clock_mode)
+{
+ u64 res;
+
+ /*
+ * clock_mode == 0 implies that vDSO are enabled otherwise
+ * fallback on syscall.
+ */
+ if (clock_mode)
+ return __VDSO_USE_SYSCALL;
+
+ /*
+ * This isb() is required to prevent that the counter value
+ * is speculated.
+ */
+ isb();
+ asm volatile("mrrc p15, 1, %Q0, %R0, c14" : "=r" (res));
+ /*
+ * This isb() is required to prevent that the seq lock is
+ * speculated.
+ */
+ isb();
+
+ return res;
+}
+
+static __always_inline const struct vdso_data *__arch_get_vdso_data(void)
+{
+ const struct vdso_data *ret;
+
+ /*
+ * This simply puts &_vdso_data into ret. The reason why we don't use
+ * `ret = _vdso_data` is that the compiler tends to optimise this in a
+ * very suboptimal way: instead of keeping &_vdso_data in a register,
+ * it goes through a relocation almost every time _vdso_data must be
+ * accessed (even in subfunctions). This is both time and space
+ * consuming: each relocation uses a word in the code section, and it
+ * has to be loaded at runtime.
+ *
+ * This trick hides the assignment from the compiler. Since it cannot
+ * track where the pointer comes from, it will only use one relocation
+ * where __arch_get_vdso_data() is called, and then keep the result in
+ * a register.
+ */
+ asm volatile("mov %0, %1" : "=r"(ret) : "r"(_vdso_data));
+
+ return ret;
+}
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* __ASM_VDSO_GETTIMEOFDAY_H */
diff --git a/arch/arm64/include/asm/vdso/gettimeofday.h b/arch/arm64/include/asm/vdso/gettimeofday.h
new file mode 100644
index 0000000..879e94e
--- /dev/null
+++ b/arch/arm64/include/asm/vdso/gettimeofday.h
@@ -0,0 +1,104 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2018 ARM Limited
+ */
+#ifndef __ASM_VDSO_GETTIMEOFDAY_H
+#define __ASM_VDSO_GETTIMEOFDAY_H
+
+#ifndef __ASSEMBLY__
+
+#include <asm/unistd.h>
+
+#define __VDSO_USE_SYSCALL ULLONG_MAX
+
+#define VDSO_HAS_CLOCK_GETRES 1
+
+#define VDSO_HAS_TIME 1
+
+static __always_inline
+int gettimeofday_fallback(struct __kernel_old_timeval *_tv,
+ struct timezone *_tz)
+{
+ register struct timezone *tz asm("x1") = _tz;
+ register struct __kernel_old_timeval *tv asm("x0") = _tv;
+ register long ret asm ("x0");
+ register long nr asm("x8") = __NR_gettimeofday;
+
+ asm volatile(
+ " svc #0\n"
+ : "=r" (ret)
+ : "r" (tv), "r" (tz), "r" (nr)
+ : "memory");
+
+ return ret;
+}
+
+static __always_inline
+long clock_gettime_fallback(clockid_t _clkid, struct __kernel_timespec *_ts)
+{
+ register struct __kernel_timespec *ts asm("x1") = _ts;
+ register clockid_t clkid asm("x0") = _clkid;
+ register long ret asm ("x0");
+ register long nr asm("x8") = __NR_clock_gettime;
+
+ asm volatile(
+ " svc #0\n"
+ : "=r" (ret)
+ : "r" (clkid), "r" (ts), "r" (nr)
+ : "memory");
+
+ return ret;
+}
+
+static __always_inline
+int clock_getres_fallback(clockid_t _clkid, struct __kernel_timespec *_ts)
+{
+ register struct __kernel_timespec *ts asm("x1") = _ts;
+ register clockid_t clkid asm("x0") = _clkid;
+ register long ret asm ("x0");
+ register long nr asm("x8") = __NR_clock_getres;
+
+ asm volatile(
+ " svc #0\n"
+ : "=r" (ret)
+ : "r" (clkid), "r" (ts), "r" (nr)
+ : "memory");
+
+ return ret;
+}
+
+static __always_inline u64 __arch_get_hw_counter(s32 clock_mode)
+{
+ u64 res;
+
+ /*
+ * clock_mode == 0 implies that vDSO are enabled otherwise
+ * fallback on syscall.
+ */
+ if (clock_mode)
+ return __VDSO_USE_SYSCALL;
+
+ /*
+ * This isb() is required to prevent that the counter value
+ * is speculated.
+ */
+ isb();
+ asm volatile("mrs %0, cntvct_el0" : "=r" (res) :: "memory");
+ /*
+ * This isb() is required to prevent that the seq lock is
+ * speculated.#
+ */
+ isb();
+
+ return res;
+}
+
+static __always_inline
+const struct vdso_data *__arch_get_vdso_data(void)
+{
+ return _vdso_data;
+}
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* __ASM_VDSO_GETTIMEOFDAY_H */
diff --git a/arch/arm64/include/asm/vdso/processor.h b/arch/arm64/include/asm/vdso/processor.h
new file mode 100644
index 0000000..ff830b7
--- /dev/null
+++ b/arch/arm64/include/asm/vdso/processor.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020 ARM Ltd.
+ */
+#ifndef __ASM_VDSO_PROCESSOR_H
+#define __ASM_VDSO_PROCESSOR_H
+
+#ifndef __ASSEMBLY__
+
+static inline void cpu_relax(void)
+{
+ asm volatile("yield" ::: "memory");
+}
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __ASM_VDSO_PROCESSOR_H */
diff --git a/arch/arm64/include/asm/vdso/vsyscall.h b/arch/arm64/include/asm/vdso/vsyscall.h
new file mode 100644
index 0000000..0c20a7c
--- /dev/null
+++ b/arch/arm64/include/asm/vdso/vsyscall.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_VDSO_VSYSCALL_H
+#define __ASM_VDSO_VSYSCALL_H
+
+#ifndef __ASSEMBLY__
+
+#include <linux/timekeeper_internal.h>
+#include <vdso/datapage.h>
+
+#define VDSO_PRECISION_MASK ~(0xFF00ULL<<48)
+
+extern struct vdso_data *vdso_data;
+
+/*
+ * Update the vDSO data page to keep in sync with kernel timekeeping.
+ */
+static __always_inline
+struct vdso_data *__arm64_get_k_vdso_data(void)
+{
+ return vdso_data;
+}
+#define __arch_get_k_vdso_data __arm64_get_k_vdso_data
+
+static __always_inline
+int __arm64_get_clock_mode(struct timekeeper *tk)
+{
+ u32 use_syscall = !tk->tkr_mono.clock->archdata.vdso_direct;
+
+ return use_syscall;
+}
+#define __arch_get_clock_mode __arm64_get_clock_mode
+
+static __always_inline
+void __arm64_update_vsyscall(struct vdso_data *vdata, struct timekeeper *tk)
+{
+ vdata[CS_HRES_COARSE].mask = VDSO_PRECISION_MASK;
+ vdata[CS_RAW].mask = VDSO_PRECISION_MASK;
+}
+#define __arch_update_vsyscall __arm64_update_vsyscall
+
+/* The asm-generic header needs to be included after the definitions above */
+#include <asm-generic/vdso/vsyscall.h>
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* __ASM_VDSO_VSYSCALL_H */
diff --git a/arch/arm64/include/asm/vdso_datapage.h b/arch/arm64/include/asm/vdso_datapage.h
deleted file mode 100644
index f89263c..0000000
--- a/arch/arm64/include/asm/vdso_datapage.h
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * Copyright (C) 2012 ARM Limited
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-#ifndef __ASM_VDSO_DATAPAGE_H
-#define __ASM_VDSO_DATAPAGE_H
-
-#ifdef __KERNEL__
-
-#ifndef __ASSEMBLY__
-
-struct vdso_data {
- __u64 cs_cycle_last; /* Timebase at clocksource init */
- __u64 raw_time_sec; /* Raw time */
- __u64 raw_time_nsec;
- __u64 xtime_clock_sec; /* Kernel time */
- __u64 xtime_clock_nsec;
- __u64 xtime_coarse_sec; /* Coarse time */
- __u64 xtime_coarse_nsec;
- __u64 wtm_clock_sec; /* Wall to monotonic time */
- __u64 wtm_clock_nsec;
- __u32 tb_seq_count; /* Timebase sequence counter */
- /* cs_* members must be adjacent and in this order (ldp accesses) */
- __u32 cs_mono_mult; /* NTP-adjusted clocksource multiplier */
- __u32 cs_shift; /* Clocksource shift (mono = raw) */
- __u32 cs_raw_mult; /* Raw clocksource multiplier */
- __u32 tz_minuteswest; /* Whacky timezone stuff */
- __u32 tz_dsttime;
- __u32 use_syscall;
- __u32 hrtimer_res;
-};
-
-#endif /* !__ASSEMBLY__ */
-
-#endif /* __KERNEL__ */
-
-#endif /* __ASM_VDSO_DATAPAGE_H */
diff --git a/arch/arm64/include/uapi/asm/setup.h b/arch/arm64/include/uapi/asm/setup.h
index 5d703888..85e34aa 100644
--- a/arch/arm64/include/uapi/asm/setup.h
+++ b/arch/arm64/include/uapi/asm/setup.h
@@ -22,6 +22,6 @@
#include <linux/types.h>
-#define COMMAND_LINE_SIZE 2048
+#define COMMAND_LINE_SIZE 4096
#endif
diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile
index 4c8b13b..1910098 100644
--- a/arch/arm64/kernel/Makefile
+++ b/arch/arm64/kernel/Makefile
@@ -27,8 +27,12 @@
$(obj)/%.stub.o: $(obj)/%.o FORCE
$(call if_changed,objcopy)
-arm64-obj-$(CONFIG_COMPAT) += sys32.o kuser32.o signal32.o \
+arm64-obj-$(CONFIG_COMPAT) += sys32.o signal32.o \
sys_compat.o
+ifneq ($(CONFIG_COMPAT_VDSO), y)
+arm64-obj-$(CONFIG_COMPAT) += sigreturn32.o
+endif
+arm64-obj-$(CONFIG_KUSER_HELPERS) += kuser32.o
arm64-obj-$(CONFIG_FUNCTION_TRACER) += ftrace.o entry-ftrace.o
arm64-obj-$(CONFIG_MODULES) += arm64ksyms.o module.o
arm64-obj-$(CONFIG_ARM64_MODULE_PLTS) += module-plts.o
@@ -57,9 +61,11 @@
arm64-obj-$(CONFIG_CRASH_CORE) += crash_core.o
arm64-obj-$(CONFIG_ARM_SDE_INTERFACE) += sdei.o
arm64-obj-$(CONFIG_ARM64_SSBD) += ssbd.o
+arm64-obj-$(CONFIG_SHADOW_CALL_STACK) += scs.o
obj-y += $(arm64-obj-y) vdso/ probes/
obj-m += $(arm64-obj-m)
+obj-$(CONFIG_COMPAT_VDSO) += vdso32/
head-y := head.o
extra-y += $(head-y) vmlinux.lds
diff --git a/arch/arm64/kernel/alternative.c b/arch/arm64/kernel/alternative.c
index 0d34562..0dd30d0 100644
--- a/arch/arm64/kernel/alternative.c
+++ b/arch/arm64/kernel/alternative.c
@@ -133,7 +133,7 @@ static void clean_dcache_range_nopatch(u64 start, u64 end)
} while (cur += d_size, cur < end);
}
-static void __apply_alternatives(void *alt_region, bool is_module)
+static void __nocfi __apply_alternatives(void *alt_region, bool is_module)
{
struct alt_instr *alt;
struct alt_region *region = alt_region;
diff --git a/arch/arm64/kernel/arm64ksyms.c b/arch/arm64/kernel/arm64ksyms.c
index 72f63a5..57c9772 100644
--- a/arch/arm64/kernel/arm64ksyms.c
+++ b/arch/arm64/kernel/arm64ksyms.c
@@ -29,6 +29,7 @@
#include <linux/arm-smccc.h>
#include <linux/kprobes.h>
+#include <asm/cacheflush.h>
#include <asm/checksum.h>
EXPORT_SYMBOL(copy_page);
@@ -86,3 +87,15 @@ extern long long __ashrti3(long long a, int b);
EXPORT_SYMBOL(__ashrti3);
extern long long __lshrti3(long long a, int b);
EXPORT_SYMBOL(__lshrti3);
+
+ /* caching functions */
+EXPORT_SYMBOL_GPL(__dma_inv_area);
+EXPORT_SYMBOL_GPL(__dma_clean_area);
+EXPORT_SYMBOL_GPL(__dma_flush_area);
+EXPORT_SYMBOL_GPL(__flush_dcache_area);
+
+EXPORT_SYMBOL_GPL(__bss_stop);
+EXPORT_SYMBOL_GPL(__per_cpu_start);
+EXPORT_SYMBOL_GPL(__per_cpu_end);
+EXPORT_SYMBOL_GPL(_sdata);
+EXPORT_SYMBOL_GPL(cpu_do_idle);
diff --git a/arch/arm64/kernel/asm-offsets.c b/arch/arm64/kernel/asm-offsets.c
index 92fba85..b8f83cf 100644
--- a/arch/arm64/kernel/asm-offsets.c
+++ b/arch/arm64/kernel/asm-offsets.c
@@ -25,13 +25,14 @@
#include <linux/kvm_host.h>
#include <linux/preempt.h>
#include <linux/suspend.h>
+#include <vdso/datapage.h>
#include <asm/cpufeature.h>
#include <asm/fixmap.h>
#include <asm/thread_info.h>
#include <asm/memory.h>
+#include <asm/signal32.h>
#include <asm/smp_plat.h>
#include <asm/suspend.h>
-#include <asm/vdso_datapage.h>
#include <linux/kbuild.h>
#include <linux/arm-smccc.h>
@@ -45,6 +46,9 @@ int main(void)
#ifdef CONFIG_ARM64_SW_TTBR0_PAN
DEFINE(TSK_TI_TTBR0, offsetof(struct task_struct, thread_info.ttbr0));
#endif
+#ifdef CONFIG_SHADOW_CALL_STACK
+ DEFINE(TSK_TI_SCS, offsetof(struct task_struct, thread_info.shadow_call_stack));
+#endif
DEFINE(TSK_STACK, offsetof(struct task_struct, stack));
BLANK();
DEFINE(THREAD_CPU_CONTEXT, offsetof(struct task_struct, thread.cpu_context));
@@ -81,6 +85,11 @@ int main(void)
DEFINE(S_STACKFRAME, offsetof(struct pt_regs, stackframe));
DEFINE(S_FRAME_SIZE, sizeof(struct pt_regs));
BLANK();
+#ifdef CONFIG_COMPAT
+ DEFINE(COMPAT_SIGFRAME_REGS_OFFSET, offsetof(struct compat_sigframe, uc.uc_mcontext.arm_r0));
+ DEFINE(COMPAT_RT_SIGFRAME_REGS_OFFSET, offsetof(struct compat_rt_sigframe, sig.uc.uc_mcontext.arm_r0));
+ BLANK();
+#endif
DEFINE(MM_CONTEXT_ID, offsetof(struct mm_struct, context.id.counter));
BLANK();
DEFINE(VMA_VM_MM, offsetof(struct vm_area_struct, vm_mm));
@@ -105,22 +114,28 @@ int main(void)
DEFINE(CLOCK_COARSE_RES, LOW_RES_NSEC);
DEFINE(NSEC_PER_SEC, NSEC_PER_SEC);
BLANK();
- DEFINE(VDSO_CS_CYCLE_LAST, offsetof(struct vdso_data, cs_cycle_last));
- DEFINE(VDSO_RAW_TIME_SEC, offsetof(struct vdso_data, raw_time_sec));
- DEFINE(VDSO_RAW_TIME_NSEC, offsetof(struct vdso_data, raw_time_nsec));
- DEFINE(VDSO_XTIME_CLK_SEC, offsetof(struct vdso_data, xtime_clock_sec));
- DEFINE(VDSO_XTIME_CLK_NSEC, offsetof(struct vdso_data, xtime_clock_nsec));
- DEFINE(VDSO_XTIME_CRS_SEC, offsetof(struct vdso_data, xtime_coarse_sec));
- DEFINE(VDSO_XTIME_CRS_NSEC, offsetof(struct vdso_data, xtime_coarse_nsec));
- DEFINE(VDSO_WTM_CLK_SEC, offsetof(struct vdso_data, wtm_clock_sec));
- DEFINE(VDSO_WTM_CLK_NSEC, offsetof(struct vdso_data, wtm_clock_nsec));
- DEFINE(VDSO_TB_SEQ_COUNT, offsetof(struct vdso_data, tb_seq_count));
- DEFINE(VDSO_CS_MONO_MULT, offsetof(struct vdso_data, cs_mono_mult));
- DEFINE(VDSO_CS_RAW_MULT, offsetof(struct vdso_data, cs_raw_mult));
- DEFINE(VDSO_CS_SHIFT, offsetof(struct vdso_data, cs_shift));
+ DEFINE(VDSO_SEQ, offsetof(struct vdso_data, seq));
+ DEFINE(VDSO_CLK_MODE, offsetof(struct vdso_data, clock_mode));
+ DEFINE(VDSO_CYCLE_LAST, offsetof(struct vdso_data, cycle_last));
+ DEFINE(VDSO_MASK, offsetof(struct vdso_data, mask));
+ DEFINE(VDSO_MULT, offsetof(struct vdso_data, mult));
+ DEFINE(VDSO_SHIFT, offsetof(struct vdso_data, shift));
+ DEFINE(VDSO_REALTIME_SEC, offsetof(struct vdso_data, basetime[CLOCK_REALTIME].sec));
+ DEFINE(VDSO_REALTIME_NSEC, offsetof(struct vdso_data, basetime[CLOCK_REALTIME].nsec));
+ DEFINE(VDSO_MONO_SEC, offsetof(struct vdso_data, basetime[CLOCK_MONOTONIC].sec));
+ DEFINE(VDSO_MONO_NSEC, offsetof(struct vdso_data, basetime[CLOCK_MONOTONIC].nsec));
+ DEFINE(VDSO_MONO_RAW_SEC, offsetof(struct vdso_data, basetime[CLOCK_MONOTONIC_RAW].sec));
+ DEFINE(VDSO_MONO_RAW_NSEC, offsetof(struct vdso_data, basetime[CLOCK_MONOTONIC_RAW].nsec));
+ DEFINE(VDSO_BOOTTIME_SEC, offsetof(struct vdso_data, basetime[CLOCK_BOOTTIME].sec));
+ DEFINE(VDSO_BOOTTIME_NSEC, offsetof(struct vdso_data, basetime[CLOCK_BOOTTIME].nsec));
+ DEFINE(VDSO_TAI_SEC, offsetof(struct vdso_data, basetime[CLOCK_TAI].sec));
+ DEFINE(VDSO_TAI_NSEC, offsetof(struct vdso_data, basetime[CLOCK_TAI].nsec));
+ DEFINE(VDSO_RT_COARSE_SEC, offsetof(struct vdso_data, basetime[CLOCK_REALTIME_COARSE].sec));
+ DEFINE(VDSO_RT_COARSE_NSEC, offsetof(struct vdso_data, basetime[CLOCK_REALTIME_COARSE].nsec));
+ DEFINE(VDSO_MONO_COARSE_SEC, offsetof(struct vdso_data, basetime[CLOCK_MONOTONIC_COARSE].sec));
+ DEFINE(VDSO_MONO_COARSE_NSEC, offsetof(struct vdso_data, basetime[CLOCK_MONOTONIC_COARSE].nsec));
DEFINE(VDSO_TZ_MINWEST, offsetof(struct vdso_data, tz_minuteswest));
DEFINE(VDSO_TZ_DSTTIME, offsetof(struct vdso_data, tz_dsttime));
- DEFINE(VDSO_USE_SYSCALL, offsetof(struct vdso_data, use_syscall));
BLANK();
DEFINE(TVAL_TV_SEC, offsetof(struct timeval, tv_sec));
DEFINE(TVAL_TV_USEC, offsetof(struct timeval, tv_usec));
diff --git a/arch/arm64/kernel/cpu-reset.S b/arch/arm64/kernel/cpu-reset.S
index 8021b46..63ccd07 100644
--- a/arch/arm64/kernel/cpu-reset.S
+++ b/arch/arm64/kernel/cpu-reset.S
@@ -45,11 +45,11 @@
mov x0, #HVC_SOFT_RESTART
hvc #0 // no return
-1: mov x18, x1 // entry
+1: mov x8, x1 // entry
mov x0, x2 // arg0
mov x1, x3 // arg1
mov x2, x4 // arg2
- br x18
+ br x8
ENDPROC(__cpu_soft_restart)
.popsection
diff --git a/arch/arm64/kernel/cpu-reset.h b/arch/arm64/kernel/cpu-reset.h
index fad90e49..f300e757 100644
--- a/arch/arm64/kernel/cpu-reset.h
+++ b/arch/arm64/kernel/cpu-reset.h
@@ -25,7 +25,7 @@ static inline void __noreturn cpu_soft_restart(unsigned long entry,
unsigned long el2_switch = !is_kernel_in_hyp_mode() &&
is_hyp_mode_available();
- restart = (void *)__pa_symbol(__cpu_soft_restart);
+ restart = (void *)__pa_function(__cpu_soft_restart);
cpu_install_idmap();
restart(el2_switch, entry, arg0, arg1, arg2);
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index 122d5e8..38ee272 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -953,7 +953,7 @@ static bool unmap_kernel_at_el0(const struct arm64_cpu_capabilities *entry,
}
#ifdef CONFIG_UNMAP_KERNEL_AT_EL0
-static void
+static void __nocfi
kpti_install_ng_mappings(const struct arm64_cpu_capabilities *__unused)
{
typedef void (kpti_remap_fn)(int, int, phys_addr_t);
@@ -966,7 +966,7 @@ kpti_install_ng_mappings(const struct arm64_cpu_capabilities *__unused)
if (kpti_applied)
return;
- remap_fn = (void *)__pa_symbol(idmap_kpti_install_ng_mappings);
+ remap_fn = (void *)__pa_function(idmap_kpti_install_ng_mappings);
cpu_install_idmap();
remap_fn(cpu, num_online_cpus(), __pa_symbol(swapper_pg_dir));
@@ -1097,7 +1097,7 @@ static int ssbs_emulation_handler(struct pt_regs *regs, u32 instr)
if (user_mode(regs))
return 1;
- if (instr & BIT(CRm_shift))
+ if (instr & BIT(PSTATE_Imm_shift))
regs->pstate |= PSR_SSBS_BIT;
else
regs->pstate &= ~PSR_SSBS_BIT;
@@ -1107,8 +1107,8 @@ static int ssbs_emulation_handler(struct pt_regs *regs, u32 instr)
}
static struct undef_hook ssbs_emulation_hook = {
- .instr_mask = ~(1U << CRm_shift),
- .instr_val = 0xd500001f | REG_PSTATE_SSBS_IMM,
+ .instr_mask = ~(1U << PSTATE_Imm_shift),
+ .instr_val = 0xd500401f | PSTATE_SSBS,
.fn = ssbs_emulation_handler,
};
diff --git a/arch/arm64/kernel/cpuidle.c b/arch/arm64/kernel/cpuidle.c
index f2d1381..e774077 100644
--- a/arch/arm64/kernel/cpuidle.c
+++ b/arch/arm64/kernel/cpuidle.c
@@ -42,6 +42,7 @@ int arm_cpuidle_suspend(int index)
return cpu_ops[cpu]->cpu_suspend(index);
}
+EXPORT_SYMBOL_GPL(arm_cpuidle_suspend);
#ifdef CONFIG_ACPI
diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c
index dce971f..adb3a34 100644
--- a/arch/arm64/kernel/cpuinfo.c
+++ b/arch/arm64/kernel/cpuinfo.c
@@ -34,6 +34,12 @@
#include <linux/sched.h>
#include <linux/smp.h>
#include <linux/delay.h>
+#include <linux/of_fdt.h>
+
+char* (*arch_read_hardware_id)(void);
+EXPORT_SYMBOL(arch_read_hardware_id);
+
+static const char *machine_name;
/*
* In case the boot CPU is hotpluggable, we record its initial state and
@@ -177,6 +183,11 @@ static int c_show(struct seq_file *m, void *v)
seq_printf(m, "CPU revision\t: %d\n\n", MIDR_REVISION(midr));
}
+ if (!arch_read_hardware_id)
+ seq_printf(m, "Hardware\t: %s\n", machine_name);
+ else
+ seq_printf(m, "Hardware\t: %s\n", arch_read_hardware_id());
+
return 0;
}
@@ -383,6 +394,7 @@ void __init cpuinfo_store_boot_cpu(void)
boot_cpu_data = *info;
init_cpu_features(&boot_cpu_data);
+ machine_name = of_flat_dt_get_machine_name();
}
device_initcall(cpuinfo_regs_init);
diff --git a/arch/arm64/kernel/efi-rt-wrapper.S b/arch/arm64/kernel/efi-rt-wrapper.S
index 05235eb..f5cea7b 100644
--- a/arch/arm64/kernel/efi-rt-wrapper.S
+++ b/arch/arm64/kernel/efi-rt-wrapper.S
@@ -37,5 +37,14 @@
ldp x29, x30, [sp], #32
b.ne 0f
ret
-0: b efi_handle_corrupted_x18 // tail call
+0:
+#ifdef CONFIG_SHADOW_CALL_STACK
+ /*
+ * Restore x18 before returning to instrumented code. This is
+ * safe because the wrapper is called with preemption disabled and
+ * a separate shadow stack is used for interrupts.
+ */
+ mov x18, x2
+#endif
+ b efi_handle_corrupted_x18 // tail call
ENDPROC(__efi_rt_asm_wrapper)
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 5f80038..82f5ee8 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -183,6 +183,10 @@
apply_ssbd 1, x22, x23
+#ifdef CONFIG_SHADOW_CALL_STACK
+ ldr x18, [tsk, #TSK_TI_SCS] // Restore shadow call stack
+ str xzr, [tsk, #TSK_TI_SCS] // Limit visibility of saved SCS
+#endif
.else
add x21, sp, #S_FRAME_SIZE
get_thread_info tsk
@@ -274,6 +278,12 @@
ct_user_enter
.endif
+#ifdef CONFIG_SHADOW_CALL_STACK
+ .if \el == 0
+ str x18, [tsk, #TSK_TI_SCS] // Save shadow call stack
+ .endif
+#endif
+
#ifdef CONFIG_ARM64_SW_TTBR0_PAN
/*
* Restore access to TTBR0_EL1. If returning to EL0, no need for SPSR
@@ -367,6 +377,9 @@
.macro irq_stack_entry
mov x19, sp // preserve the original sp
+#ifdef CONFIG_SHADOW_CALL_STACK
+ mov x20, x18 // preserve the original shadow stack
+#endif
/*
* Compare sp with the base of the task stack.
@@ -384,15 +397,24 @@
/* switch to the irq stack */
mov sp, x26
+
+#ifdef CONFIG_SHADOW_CALL_STACK
+ /* also switch to the irq shadow stack */
+ ldr_this_cpu x18, irq_shadow_call_stack_ptr, x26
+#endif
+
9998:
.endm
/*
- * x19 should be preserved between irq_stack_entry and
- * irq_stack_exit.
+ * The callee-saved regs (x19-x29) should be preserved between
+ * irq_stack_entry and irq_stack_exit.
*/
.macro irq_stack_exit
mov sp, x19
+#ifdef CONFIG_SHADOW_CALL_STACK
+ mov x18, x20
+#endif
.endm
/*
@@ -568,7 +590,7 @@
*/
mrs x3, far_el1
inherit_daif pstate=x23, tmp=x2
- clear_address_tag x0, x3
+ untagged_addr x0, x3
mov x2, sp // struct pt_regs
bl do_mem_abort
@@ -731,7 +753,7 @@
mrs x26, far_el1
enable_daif
ct_user_exit
- clear_address_tag x0, x26
+ untagged_addr x0, x26
mov x1, x25
mov x2, sp
bl do_mem_abort
@@ -1060,6 +1082,11 @@
ldr lr, [x8]
mov sp, x9
msr sp_el0, x1
+#ifdef CONFIG_SHADOW_CALL_STACK
+ str x18, [x0, #TSK_TI_SCS]
+ ldr x18, [x1, #TSK_TI_SCS]
+ str xzr, [x1, #TSK_TI_SCS] // limit visibility of saved SCS
+#endif
ret
ENDPROC(cpu_switch_to)
NOKPROBE(cpu_switch_to)
diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S
index ea7f059..29f67c9 100644
--- a/arch/arm64/kernel/head.S
+++ b/arch/arm64/kernel/head.S
@@ -37,6 +37,7 @@
#include <asm/pgtable-hwdef.h>
#include <asm/pgtable.h>
#include <asm/page.h>
+#include <asm/scs.h>
#include <asm/smp.h>
#include <asm/sysreg.h>
#include <asm/thread_info.h>
@@ -112,6 +113,8 @@
* x23 stext() .. start_kernel() physical misalignment/KASLR offset
* x28 __create_page_tables() callee preserved temp register
* x19/x20 __primary_switch() callee preserved temp registers
+ * x24 __primary_switch() .. relocate_kernel()
+ * current RELR displacement
*/
ENTRY(stext)
bl preserve_boot_args
@@ -418,6 +421,10 @@
stp xzr, x30, [sp, #-16]!
mov x29, sp
+#ifdef CONFIG_SHADOW_CALL_STACK
+ adr_l x18, init_shadow_call_stack // Set shadow call stack
+#endif
+
str_l x21, __fdt_pointer, x5 // Save FDT pointer
ldr_l x4, kimage_vaddr // Save the offset between
@@ -721,6 +728,10 @@
mov sp, x1
ldr x2, [x0, #CPU_BOOT_TASK]
msr sp_el0, x2
+#ifdef CONFIG_SHADOW_CALL_STACK
+ ldr x18, [x2, #TSK_TI_SCS] // set shadow call stack
+ str xzr, [x2, #TSK_TI_SCS] // limit visibility of saved SCS
+#endif
mov x29, #0
mov x30, #0
b secondary_start_kernel
@@ -831,14 +842,93 @@
0: cmp x9, x10
b.hs 1f
- ldp x11, x12, [x9], #24
- ldr x13, [x9, #-8]
- cmp w12, #R_AARCH64_RELATIVE
+ ldp x12, x13, [x9], #24
+ ldr x14, [x9, #-8]
+ cmp w13, #R_AARCH64_RELATIVE
b.ne 0b
- add x13, x13, x23 // relocate
- str x13, [x11, x23]
+ add x14, x14, x23 // relocate
+ str x14, [x12, x23]
b 0b
-1: ret
+
+1:
+#ifdef CONFIG_RELR
+ /*
+ * Apply RELR relocations.
+ *
+ * RELR is a compressed format for storing relative relocations. The
+ * encoded sequence of entries looks like:
+ * [ AAAAAAAA BBBBBBB1 BBBBBBB1 ... AAAAAAAA BBBBBB1 ... ]
+ *
+ * i.e. start with an address, followed by any number of bitmaps. The
+ * address entry encodes 1 relocation. The subsequent bitmap entries
+ * encode up to 63 relocations each, at subsequent offsets following
+ * the last address entry.
+ *
+ * The bitmap entries must have 1 in the least significant bit. The
+ * assumption here is that an address cannot have 1 in lsb. Odd
+ * addresses are not supported. Any odd addresses are stored in the RELA
+ * section, which is handled above.
+ *
+ * Excluding the least significant bit in the bitmap, each non-zero
+ * bit in the bitmap represents a relocation to be applied to
+ * a corresponding machine word that follows the base address
+ * word. The second least significant bit represents the machine
+ * word immediately following the initial address, and each bit
+ * that follows represents the next word, in linear order. As such,
+ * a single bitmap can encode up to 63 relocations in a 64-bit object.
+ *
+ * In this implementation we store the address of the next RELR table
+ * entry in x9, the address being relocated by the current address or
+ * bitmap entry in x13 and the address being relocated by the current
+ * bit in x14.
+ *
+ * Because addends are stored in place in the binary, RELR relocations
+ * cannot be applied idempotently. We use x24 to keep track of the
+ * currently applied displacement so that we can correctly relocate if
+ * __relocate_kernel is called twice with non-zero displacements (i.e.
+ * if there is both a physical misalignment and a KASLR displacement).
+ */
+ ldr w9, =__relr_offset // offset to reloc table
+ ldr w10, =__relr_size // size of reloc table
+ add x9, x9, x11 // __va(.relr)
+ add x10, x9, x10 // __va(.relr) + sizeof(.relr)
+
+ sub x15, x23, x24 // delta from previous offset
+ cbz x15, 7f // nothing to do if unchanged
+ mov x24, x23 // save new offset
+
+2: cmp x9, x10
+ b.hs 7f
+ ldr x11, [x9], #8
+ tbnz x11, #0, 3f // branch to handle bitmaps
+ add x13, x11, x23
+ ldr x12, [x13] // relocate address entry
+ add x12, x12, x15
+ str x12, [x13], #8 // adjust to start of bitmap
+ b 2b
+
+3: mov x14, x13
+4: lsr x11, x11, #1
+ cbz x11, 6f
+ tbz x11, #0, 5f // skip bit if not set
+ ldr x12, [x14] // relocate bit
+ add x12, x12, x15
+ str x12, [x14]
+
+5: add x14, x14, #8 // move to next bit's address
+ b 4b
+
+6: /*
+ * Move to the next bitmap's address. 8 is the word size, and 63 is the
+ * number of significant bits in a bitmap entry.
+ */
+ add x13, x13, #(8 * 63)
+ b 2b
+
+7:
+#endif
+ ret
+
ENDPROC(__relocate_kernel)
#endif
@@ -850,6 +940,9 @@
bl __enable_mmu
#ifdef CONFIG_RELOCATABLE
+#ifdef CONFIG_RELR
+ mov x24, #0 // no RELR displacement yet
+#endif
bl __relocate_kernel
#ifdef CONFIG_RANDOMIZE_BASE
ldr x8, =__primary_switched
diff --git a/arch/arm64/kernel/irq.c b/arch/arm64/kernel/irq.c
index 92fa817..108e4ac 100644
--- a/arch/arm64/kernel/irq.c
+++ b/arch/arm64/kernel/irq.c
@@ -30,6 +30,7 @@
#include <linux/seq_file.h>
#include <linux/vmalloc.h>
#include <asm/vmap_stack.h>
+#include <asm/scs.h>
unsigned long irq_err_count;
@@ -37,6 +38,7 @@ unsigned long irq_err_count;
DEFINE_PER_CPU(struct nmi_ctx, nmi_contexts);
DEFINE_PER_CPU(unsigned long *, irq_stack_ptr);
+EXPORT_PER_CPU_SYMBOL_GPL(irq_stack_ptr);
int arch_show_interrupts(struct seq_file *p, int prec)
{
@@ -72,6 +74,7 @@ static void init_irq_stacks(void)
void __init init_IRQ(void)
{
init_irq_stacks();
+ scs_init_irq();
irqchip_init();
if (!handle_arch_irq)
panic("No interrupt controller found.");
diff --git a/arch/arm64/kernel/kaslr.c b/arch/arm64/kernel/kaslr.c
index 06941c1..92bb534 100644
--- a/arch/arm64/kernel/kaslr.c
+++ b/arch/arm64/kernel/kaslr.c
@@ -65,9 +65,6 @@ static __init const u8 *kaslr_get_cmdline(void *fdt)
return default_cmdline;
}
-extern void *__init __fixmap_remap_fdt(phys_addr_t dt_phys, int *size,
- pgprot_t prot);
-
/*
* This routine will be executed with the kernel mapped at its default virtual
* address, and if it returns successfully, the kernel will be remapped, and
@@ -96,7 +93,7 @@ u64 __init kaslr_early_init(u64 dt_phys)
* attempt at mapping the FDT in setup_machine()
*/
early_fixmap_init();
- fdt = __fixmap_remap_fdt(dt_phys, &size, PAGE_KERNEL);
+ fdt = fixmap_remap_fdt(dt_phys, &size, PAGE_KERNEL);
if (!fdt)
return 0;
diff --git a/arch/arm64/kernel/kuser32.S b/arch/arm64/kernel/kuser32.S
index 997e6b2..49825e9 100644
--- a/arch/arm64/kernel/kuser32.S
+++ b/arch/arm64/kernel/kuser32.S
@@ -1,29 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
- * Low-level user helpers placed in the vectors page for AArch32.
+ * AArch32 user helpers.
* Based on the kuser helpers in arch/arm/kernel/entry-armv.S.
*
* Copyright (C) 2005-2011 Nicolas Pitre <nico@fluxnic.net>
- * Copyright (C) 2012 ARM Ltd.
+ * Copyright (C) 2012-2018 ARM Ltd.
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- *
- * AArch32 user helpers.
- *
- * Each segment is 32-byte aligned and will be moved to the top of the high
- * vector page. New segments (if ever needed) must be added in front of
- * existing ones. This mechanism should be used only for things that are
- * really small and justified, and not be abused freely.
+ * The kuser helpers below are mapped at a fixed address by
+ * aarch32_setup_additional_pages() and are provided for compatibility
+ * reasons with 32 bit (aarch32) applications that need them.
*
* See Documentation/arm/kernel_user_helpers.txt for formal definitions.
*/
@@ -77,42 +62,3 @@
.word ((__kuser_helper_end - __kuser_helper_start) >> 5)
.globl __kuser_helper_end
__kuser_helper_end:
-
-/*
- * AArch32 sigreturn code
- *
- * For ARM syscalls, the syscall number has to be loaded into r7.
- * We do not support an OABI userspace.
- *
- * For Thumb syscalls, we also pass the syscall number via r7. We therefore
- * need two 16-bit instructions.
- */
- .globl __aarch32_sigret_code_start
-__aarch32_sigret_code_start:
-
- /*
- * ARM Code
- */
- .byte __NR_compat_sigreturn, 0x70, 0xa0, 0xe3 // mov r7, #__NR_compat_sigreturn
- .byte __NR_compat_sigreturn, 0x00, 0x00, 0xef // svc #__NR_compat_sigreturn
-
- /*
- * Thumb code
- */
- .byte __NR_compat_sigreturn, 0x27 // svc #__NR_compat_sigreturn
- .byte __NR_compat_sigreturn, 0xdf // mov r7, #__NR_compat_sigreturn
-
- /*
- * ARM code
- */
- .byte __NR_compat_rt_sigreturn, 0x70, 0xa0, 0xe3 // mov r7, #__NR_compat_rt_sigreturn
- .byte __NR_compat_rt_sigreturn, 0x00, 0x00, 0xef // svc #__NR_compat_rt_sigreturn
-
- /*
- * Thumb code
- */
- .byte __NR_compat_rt_sigreturn, 0x27 // svc #__NR_compat_rt_sigreturn
- .byte __NR_compat_rt_sigreturn, 0xdf // mov r7, #__NR_compat_rt_sigreturn
-
- .globl __aarch32_sigret_code_end
-__aarch32_sigret_code_end:
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index d6a49bb..980d9ea 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -30,6 +30,7 @@
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/stddef.h>
+#include <linux/sysctl.h>
#include <linux/unistd.h>
#include <linux/user.h>
#include <linux/delay.h>
@@ -49,6 +50,7 @@
#include <trace/events/power.h>
#include <linux/percpu.h>
#include <linux/thread_info.h>
+#include <linux/prctl.h>
#include <asm/alternative.h>
#include <asm/compat.h>
@@ -57,6 +59,7 @@
#include <asm/fpsimd.h>
#include <asm/mmu_context.h>
#include <asm/processor.h>
+#include <asm/scs.h>
#include <asm/stacktrace.h>
#ifdef CONFIG_STACKPROTECTOR
@@ -72,6 +75,7 @@ void (*pm_power_off)(void);
EXPORT_SYMBOL_GPL(pm_power_off);
void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
+EXPORT_SYMBOL_GPL(arm_pm_restart);
/*
* This is our default idle handler.
@@ -269,11 +273,18 @@ static void tls_thread_flush(void)
}
}
+static void flush_tagged_addr_state(void)
+{
+ if (IS_ENABLED(CONFIG_ARM64_TAGGED_ADDR_ABI))
+ clear_thread_flag(TIF_TAGGED_ADDR);
+}
+
void flush_thread(void)
{
fpsimd_flush_thread();
tls_thread_flush();
flush_ptrace_hw_breakpoint(current);
+ flush_tagged_addr_state();
}
void release_thread(struct task_struct *dead_task)
@@ -461,6 +472,7 @@ __notrace_funcgraph struct task_struct *__switch_to(struct task_struct *prev,
entry_task_switch(next);
uao_thread_switch(next);
ssbs_thread_switch(next);
+ scs_overflow_check(next);
/*
* Complete any pending TLB or cache maintenance on this CPU in case
@@ -551,3 +563,70 @@ void __used stackleak_check_alloca(unsigned long size)
}
EXPORT_SYMBOL(stackleak_check_alloca);
#endif
+
+#ifdef CONFIG_ARM64_TAGGED_ADDR_ABI
+/*
+ * Control the relaxed ABI allowing tagged user addresses into the kernel.
+ */
+static unsigned int tagged_addr_disabled;
+
+long set_tagged_addr_ctrl(unsigned long arg)
+{
+ if (is_compat_task())
+ return -EINVAL;
+ if (arg & ~PR_TAGGED_ADDR_ENABLE)
+ return -EINVAL;
+
+ /*
+ * Do not allow the enabling of the tagged address ABI if globally
+ * disabled via sysctl abi.tagged_addr_disabled.
+ */
+ if (arg & PR_TAGGED_ADDR_ENABLE && tagged_addr_disabled)
+ return -EINVAL;
+
+ update_thread_flag(TIF_TAGGED_ADDR, arg & PR_TAGGED_ADDR_ENABLE);
+
+ return 0;
+}
+
+long get_tagged_addr_ctrl(void)
+{
+ if (is_compat_task())
+ return -EINVAL;
+
+ if (test_thread_flag(TIF_TAGGED_ADDR))
+ return PR_TAGGED_ADDR_ENABLE;
+
+ return 0;
+}
+
+/*
+ * Global sysctl to disable the tagged user addresses support. This control
+ * only prevents the tagged address ABI enabling via prctl() and does not
+ * disable it for tasks that already opted in to the relaxed ABI.
+ */
+static int zero;
+static int one = 1;
+
+static struct ctl_table tagged_addr_sysctl_table[] = {
+ {
+ .procname = "tagged_addr_disabled",
+ .mode = 0644,
+ .data = &tagged_addr_disabled,
+ .maxlen = sizeof(int),
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &zero,
+ .extra2 = &one,
+ },
+ { }
+};
+
+static int __init tagged_addr_init(void)
+{
+ if (!register_sysctl("abi", tagged_addr_sysctl_table))
+ return -EINVAL;
+ return 0;
+}
+
+core_initcall(tagged_addr_init);
+#endif /* CONFIG_ARM64_TAGGED_ADDR_ABI */
diff --git a/arch/arm64/kernel/psci.c b/arch/arm64/kernel/psci.c
index 3ebb2a5..cd0638e 100644
--- a/arch/arm64/kernel/psci.c
+++ b/arch/arm64/kernel/psci.c
@@ -46,7 +46,8 @@ static int __init cpu_psci_cpu_prepare(unsigned int cpu)
static int cpu_psci_cpu_boot(unsigned int cpu)
{
- int err = psci_ops.cpu_on(cpu_logical_map(cpu), __pa_symbol(secondary_entry));
+ int err = psci_ops.cpu_on(cpu_logical_map(cpu),
+ __pa_function(secondary_entry));
if (err)
pr_err("failed to boot CPU%d (%d)\n", cpu, err);
diff --git a/arch/arm64/kernel/scs.c b/arch/arm64/kernel/scs.c
new file mode 100644
index 0000000..eaadf54
--- /dev/null
+++ b/arch/arm64/kernel/scs.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Shadow Call Stack support.
+ *
+ * Copyright (C) 2019 Google LLC
+ */
+
+#include <linux/percpu.h>
+#include <linux/vmalloc.h>
+#include <asm/pgtable.h>
+#include <asm/scs.h>
+
+DEFINE_PER_CPU(unsigned long *, irq_shadow_call_stack_ptr);
+
+#ifndef CONFIG_SHADOW_CALL_STACK_VMAP
+DEFINE_PER_CPU(unsigned long [SCS_SIZE/sizeof(long)], irq_shadow_call_stack)
+ __aligned(SCS_SIZE);
+#endif
+
+void scs_init_irq(void)
+{
+ int cpu;
+
+ for_each_possible_cpu(cpu) {
+#ifdef CONFIG_SHADOW_CALL_STACK_VMAP
+ unsigned long *p;
+
+ p = __vmalloc_node_range(PAGE_SIZE, SCS_SIZE,
+ VMALLOC_START, VMALLOC_END,
+ GFP_SCS, PAGE_KERNEL,
+ 0, cpu_to_node(cpu),
+ __builtin_return_address(0));
+
+ per_cpu(irq_shadow_call_stack_ptr, cpu) = p;
+#else
+ per_cpu(irq_shadow_call_stack_ptr, cpu) =
+ per_cpu(irq_shadow_call_stack, cpu);
+#endif /* CONFIG_SHADOW_CALL_STACK_VMAP */
+ }
+}
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index b3354ff..f654b44 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -69,6 +69,14 @@ static struct resource *standard_resources;
phys_addr_t __fdt_pointer __initdata;
+/* Vendor stub */
+unsigned int boot_reason;
+EXPORT_SYMBOL_GPL(boot_reason);
+
+/* Vendor stub */
+unsigned int cold_boot;
+EXPORT_SYMBOL_GPL(cold_boot);
+
/*
* Standard memory resources
*/
@@ -183,9 +191,13 @@ static void __init smp_build_mpidr_hash(void)
static void __init setup_machine_fdt(phys_addr_t dt_phys)
{
- void *dt_virt = fixmap_remap_fdt(dt_phys);
+ int size;
+ void *dt_virt = fixmap_remap_fdt(dt_phys, &size, PAGE_KERNEL);
const char *name;
+ if (dt_virt)
+ memblock_reserve(dt_phys, size);
+
if (!dt_virt || !early_init_dt_scan(dt_virt)) {
pr_crit("\n"
"Error: invalid device tree blob at physical address %pa (virtual address 0x%p)\n"
@@ -197,6 +209,9 @@ static void __init setup_machine_fdt(phys_addr_t dt_phys)
cpu_relax();
}
+ /* Early fixups are done, map the FDT as read-only now */
+ fixmap_remap_fdt(dt_phys, &size, PAGE_KERNEL_RO);
+
name = of_flat_dt_get_machine_name();
if (!name)
return;
@@ -293,6 +308,11 @@ void __init setup_arch(char **cmdline_p)
setup_machine_fdt(__fdt_pointer);
+ /*
+ * Initialise the static keys early as they may be enabled by the
+ * cpufeature code and early parameters.
+ */
+ jump_label_init();
parse_early_param();
/*
@@ -339,6 +359,9 @@ void __init setup_arch(char **cmdline_p)
smp_init_cpus();
smp_build_mpidr_hash();
+ /* Init percpu seeds for random tags after cpus are set up. */
+ kasan_init_tags();
+
#ifdef CONFIG_ARM64_SW_TTBR0_PAN
/*
* Make sure init_thread_info.ttbr0 always generates translation
diff --git a/arch/arm64/kernel/signal32.c b/arch/arm64/kernel/signal32.c
index 24b09003..f2ac273 100644
--- a/arch/arm64/kernel/signal32.c
+++ b/arch/arm64/kernel/signal32.c
@@ -29,42 +29,7 @@
#include <asm/traps.h>
#include <linux/uaccess.h>
#include <asm/unistd.h>
-
-struct compat_sigcontext {
- /* We always set these two fields to 0 */
- compat_ulong_t trap_no;
- compat_ulong_t error_code;
-
- compat_ulong_t oldmask;
- compat_ulong_t arm_r0;
- compat_ulong_t arm_r1;
- compat_ulong_t arm_r2;
- compat_ulong_t arm_r3;
- compat_ulong_t arm_r4;
- compat_ulong_t arm_r5;
- compat_ulong_t arm_r6;
- compat_ulong_t arm_r7;
- compat_ulong_t arm_r8;
- compat_ulong_t arm_r9;
- compat_ulong_t arm_r10;
- compat_ulong_t arm_fp;
- compat_ulong_t arm_ip;
- compat_ulong_t arm_sp;
- compat_ulong_t arm_lr;
- compat_ulong_t arm_pc;
- compat_ulong_t arm_cpsr;
- compat_ulong_t fault_address;
-};
-
-struct compat_ucontext {
- compat_ulong_t uc_flags;
- compat_uptr_t uc_link;
- compat_stack_t uc_stack;
- struct compat_sigcontext uc_mcontext;
- compat_sigset_t uc_sigmask;
- int __unused[32 - (sizeof (compat_sigset_t) / sizeof (int))];
- compat_ulong_t uc_regspace[128] __attribute__((__aligned__(8)));
-};
+#include <asm/vdso.h>
struct compat_vfp_sigframe {
compat_ulong_t magic;
@@ -92,16 +57,6 @@ struct compat_aux_sigframe {
unsigned long end_magic;
} __attribute__((__aligned__(8)));
-struct compat_sigframe {
- struct compat_ucontext uc;
- compat_ulong_t retcode[2];
-};
-
-struct compat_rt_sigframe {
- struct compat_siginfo info;
- struct compat_sigframe sig;
-};
-
#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
static inline int put_sigset_t(compat_sigset_t __user *uset, sigset_t *set)
@@ -398,14 +353,38 @@ static void compat_setup_return(struct pt_regs *regs, struct k_sigaction *ka,
retcode = ptr_to_compat(ka->sa.sa_restorer);
} else {
/* Set up sigreturn pointer */
+#ifdef CONFIG_COMPAT_VDSO
+ void *vdso_base = current->mm->context.vdso;
+ void *vdso_trampoline;
+
+ if (ka->sa.sa_flags & SA_SIGINFO) {
+ if (thumb) {
+ vdso_trampoline = VDSO_SYMBOL(vdso_base,
+ compat_rt_sigreturn_thumb);
+ } else {
+ vdso_trampoline = VDSO_SYMBOL(vdso_base,
+ compat_rt_sigreturn_arm);
+ }
+ } else {
+ if (thumb) {
+ vdso_trampoline = VDSO_SYMBOL(vdso_base,
+ compat_sigreturn_thumb);
+ } else {
+ vdso_trampoline = VDSO_SYMBOL(vdso_base,
+ compat_sigreturn_arm);
+ }
+ }
+
+ retcode = ptr_to_compat(vdso_trampoline) + thumb;
+#else
unsigned int idx = thumb << 1;
if (ka->sa.sa_flags & SA_SIGINFO)
idx += 3;
- retcode = AARCH32_VECTORS_BASE +
- AARCH32_KERN_SIGRET_CODE_OFFSET +
+ retcode = (unsigned long)current->mm->context.vdso +
(idx << 2) + thumb;
+#endif
}
regs->regs[0] = usig;
diff --git a/arch/arm64/kernel/sigreturn32.S b/arch/arm64/kernel/sigreturn32.S
new file mode 100644
index 0000000..475d30d
--- /dev/null
+++ b/arch/arm64/kernel/sigreturn32.S
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * AArch32 sigreturn code.
+ * Based on the kuser helpers in arch/arm/kernel/entry-armv.S.
+ *
+ * Copyright (C) 2005-2011 Nicolas Pitre <nico@fluxnic.net>
+ * Copyright (C) 2012-2018 ARM Ltd.
+ *
+ * For ARM syscalls, the syscall number has to be loaded into r7.
+ * We do not support an OABI userspace.
+ *
+ * For Thumb syscalls, we also pass the syscall number via r7. We therefore
+ * need two 16-bit instructions.
+ */
+
+#include <asm/unistd.h>
+
+ .globl __aarch32_sigret_code_start
+__aarch32_sigret_code_start:
+
+ /*
+ * ARM Code
+ */
+ .byte __NR_compat_sigreturn, 0x70, 0xa0, 0xe3 // mov r7, #__NR_compat_sigreturn
+ .byte __NR_compat_sigreturn, 0x00, 0x00, 0xef // svc #__NR_compat_sigreturn
+
+ /*
+ * Thumb code
+ */
+ .byte __NR_compat_sigreturn, 0x27 // svc #__NR_compat_sigreturn
+ .byte __NR_compat_sigreturn, 0xdf // mov r7, #__NR_compat_sigreturn
+
+ /*
+ * ARM code
+ */
+ .byte __NR_compat_rt_sigreturn, 0x70, 0xa0, 0xe3 // mov r7, #__NR_compat_rt_sigreturn
+ .byte __NR_compat_rt_sigreturn, 0x00, 0x00, 0xef // svc #__NR_compat_rt_sigreturn
+
+ /*
+ * Thumb code
+ */
+ .byte __NR_compat_rt_sigreturn, 0x27 // svc #__NR_compat_rt_sigreturn
+ .byte __NR_compat_rt_sigreturn, 0xdf // mov r7, #__NR_compat_rt_sigreturn
+
+ .globl __aarch32_sigret_code_end
+__aarch32_sigret_code_end:
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 716810a..ae1e1d2 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -54,6 +54,7 @@
#include <asm/pgtable.h>
#include <asm/pgalloc.h>
#include <asm/processor.h>
+#include <asm/scs.h>
#include <asm/smp_plat.h>
#include <asm/sections.h>
#include <asm/tlbflush.h>
@@ -349,6 +350,9 @@ void cpu_die(void)
{
unsigned int cpu = smp_processor_id();
+ /* Save the shadow stack pointer before exiting the idle task */
+ scs_save(current);
+
idle_task_exit();
local_daif_mask();
@@ -414,11 +418,6 @@ void __init smp_cpus_done(unsigned int max_cpus)
void __init smp_prepare_boot_cpu(void)
{
set_my_cpu_offset(per_cpu_offset(smp_processor_id()));
- /*
- * Initialise the static keys early as they may be enabled by the
- * cpufeature code.
- */
- jump_label_init();
cpuinfo_store_boot_cpu();
}
@@ -598,7 +597,11 @@ static void __init acpi_parse_and_init_cpus(void)
#else
#define acpi_parse_and_init_cpus(...) do { } while (0)
#endif
+/* Dummy vendor field */
+DEFINE_PER_CPU(bool, pending_ipi);
+EXPORT_SYMBOL_GPL(pending_ipi);
+static void (*__smp_update_ipi_history_cb)(int cpu);
/*
* Enumerate the possible CPU set from the device tree and build the
* cpu logical map array containing MPIDR values related to logical
@@ -746,6 +749,12 @@ void __init set_smp_cross_call(void (*fn)(const struct cpumask *, unsigned int))
__smp_cross_call = fn;
}
+void set_update_ipi_history_callback(void (*fn)(int))
+{
+ __smp_update_ipi_history_cb = fn;
+}
+EXPORT_SYMBOL_GPL(set_update_ipi_history_callback);
+
static const char *ipi_types[NR_IPI] __tracepoint_string = {
#define S(x,s) [x] = s
S(IPI_RESCHEDULE, "Rescheduling interrupts"),
@@ -926,6 +935,8 @@ void handle_IPI(int ipinr, struct pt_regs *regs)
void smp_send_reschedule(int cpu)
{
+ if (__smp_update_ipi_history_cb)
+ __smp_update_ipi_history_cb(cpu);
smp_cross_call(cpumask_of(cpu), IPI_RESCHEDULE);
}
diff --git a/arch/arm64/kernel/smp_spin_table.c b/arch/arm64/kernel/smp_spin_table.c
index 9303465..1ba281d 100644
--- a/arch/arm64/kernel/smp_spin_table.c
+++ b/arch/arm64/kernel/smp_spin_table.c
@@ -99,7 +99,7 @@ static int smp_spin_table_cpu_prepare(unsigned int cpu)
* boot-loader's endianess before jumping. This is mandated by
* the boot protocol.
*/
- writeq_relaxed(__pa_symbol(secondary_holding_pen), release_addr);
+ writeq_relaxed(__pa_function(secondary_holding_pen), release_addr);
__flush_dcache_area((__force void *)release_addr,
sizeof(*release_addr));
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index 965595f..1592584 100644
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -35,6 +35,7 @@
#include <linux/sizes.h>
#include <linux/syscalls.h>
#include <linux/mm_types.h>
+#include <linux/kasan.h>
#include <asm/atomic.h>
#include <asm/bug.h>
@@ -799,6 +800,58 @@ static struct break_hook bug_break_hook = {
.fn = bug_handler,
};
+#ifdef CONFIG_KASAN_SW_TAGS
+
+#define KASAN_ESR_RECOVER 0x20
+#define KASAN_ESR_WRITE 0x10
+#define KASAN_ESR_SIZE_MASK 0x0f
+#define KASAN_ESR_SIZE(esr) (1 << ((esr) & KASAN_ESR_SIZE_MASK))
+
+static int kasan_handler(struct pt_regs *regs, unsigned int esr)
+{
+ bool recover = esr & KASAN_ESR_RECOVER;
+ bool write = esr & KASAN_ESR_WRITE;
+ size_t size = KASAN_ESR_SIZE(esr);
+ u64 addr = regs->regs[0];
+ u64 pc = regs->pc;
+
+ if (user_mode(regs))
+ return DBG_HOOK_ERROR;
+
+ kasan_report(addr, size, write, pc);
+
+ /*
+ * The instrumentation allows to control whether we can proceed after
+ * a crash was detected. This is done by passing the -recover flag to
+ * the compiler. Disabling recovery allows to generate more compact
+ * code.
+ *
+ * Unfortunately disabling recovery doesn't work for the kernel right
+ * now. KASAN reporting is disabled in some contexts (for example when
+ * the allocator accesses slab object metadata; this is controlled by
+ * current->kasan_depth). All these accesses are detected by the tool,
+ * even though the reports for them are not printed.
+ *
+ * This is something that might be fixed at some point in the future.
+ */
+ if (!recover)
+ die("Oops - KASAN", regs, 0);
+
+ /* If thread survives, skip over the brk instruction and continue: */
+ arm64_skip_faulting_instruction(regs, AARCH64_INSN_SIZE);
+ return DBG_HOOK_HANDLED;
+}
+
+#define KASAN_ESR_VAL (0xf2000000 | KASAN_BRK_IMM)
+#define KASAN_ESR_MASK 0xffffff00
+
+static struct break_hook kasan_break_hook = {
+ .esr_val = KASAN_ESR_VAL,
+ .esr_mask = KASAN_ESR_MASK,
+ .fn = kasan_handler,
+};
+#endif
+
/*
* Initial handler for AArch64 BRK exceptions
* This handler only used until debug_traps_init().
@@ -806,6 +859,10 @@ static struct break_hook bug_break_hook = {
int __init early_brk64(unsigned long addr, unsigned int esr,
struct pt_regs *regs)
{
+#ifdef CONFIG_KASAN_SW_TAGS
+ if ((esr & KASAN_ESR_MASK) == KASAN_ESR_VAL)
+ return kasan_handler(regs, esr) != DBG_HOOK_HANDLED;
+#endif
return bug_handler(regs, esr) != DBG_HOOK_HANDLED;
}
@@ -813,4 +870,7 @@ int __init early_brk64(unsigned long addr, unsigned int esr,
void __init trap_init(void)
{
register_break_hook(&bug_break_hook);
+#ifdef CONFIG_KASAN_SW_TAGS
+ register_break_hook(&kasan_break_hook);
+#endif
}
diff --git a/arch/arm64/kernel/vdso.c b/arch/arm64/kernel/vdso.c
index 42b7082..3c90b38 100644
--- a/arch/arm64/kernel/vdso.c
+++ b/arch/arm64/kernel/vdso.c
@@ -1,5 +1,5 @@
/*
- * VDSO implementation for AArch64 and vector page setup for AArch32.
+ * VDSO implementations.
*
* Copyright (C) 2012 ARM Limited
*
@@ -31,90 +31,74 @@
#include <linux/slab.h>
#include <linux/timekeeper_internal.h>
#include <linux/vmalloc.h>
+#include <vdso/datapage.h>
+#include <vdso/helpers.h>
+#include <vdso/vsyscall.h>
#include <asm/cacheflush.h>
#include <asm/signal32.h>
#include <asm/vdso.h>
-#include <asm/vdso_datapage.h>
extern char vdso_start[], vdso_end[];
-static unsigned long vdso_pages __ro_after_init;
+#ifdef CONFIG_COMPAT_VDSO
+extern char vdso32_start[], vdso32_end[];
+#endif /* CONFIG_COMPAT_VDSO */
+
+/* vdso_lookup arch_index */
+enum arch_vdso_type {
+ ARM64_VDSO = 0,
+#ifdef CONFIG_COMPAT_VDSO
+ ARM64_VDSO32 = 1,
+#endif /* CONFIG_COMPAT_VDSO */
+};
+#ifdef CONFIG_COMPAT_VDSO
+#define VDSO_TYPES (ARM64_VDSO32 + 1)
+#else
+#define VDSO_TYPES (ARM64_VDSO + 1)
+#endif /* CONFIG_COMPAT_VDSO */
+
+struct __vdso_abi {
+ const char *name;
+ const char *vdso_code_start;
+ const char *vdso_code_end;
+ unsigned long vdso_pages;
+ /* Data Mapping */
+ struct vm_special_mapping *dm;
+ /* Code Mapping */
+ struct vm_special_mapping *cm;
+};
+
+static struct __vdso_abi vdso_lookup[VDSO_TYPES] __ro_after_init = {
+ {
+ .name = "vdso",
+ .vdso_code_start = vdso_start,
+ .vdso_code_end = vdso_end,
+ },
+#ifdef CONFIG_COMPAT_VDSO
+ {
+ .name = "vdso32",
+ .vdso_code_start = vdso32_start,
+ .vdso_code_end = vdso32_end,
+ },
+#endif /* CONFIG_COMPAT_VDSO */
+};
/*
* The vDSO data page.
*/
static union {
- struct vdso_data data;
+ struct vdso_data data[CS_BASES];
u8 page[PAGE_SIZE];
} vdso_data_store __page_aligned_data;
-struct vdso_data *vdso_data = &vdso_data_store.data;
+struct vdso_data *vdso_data = vdso_data_store.data;
-#ifdef CONFIG_COMPAT
-/*
- * Create and map the vectors page for AArch32 tasks.
- */
-static struct page *vectors_page[1] __ro_after_init;
-
-static int __init alloc_vectors_page(void)
-{
- extern char __kuser_helper_start[], __kuser_helper_end[];
- extern char __aarch32_sigret_code_start[], __aarch32_sigret_code_end[];
-
- int kuser_sz = __kuser_helper_end - __kuser_helper_start;
- int sigret_sz = __aarch32_sigret_code_end - __aarch32_sigret_code_start;
- unsigned long vpage;
-
- vpage = get_zeroed_page(GFP_ATOMIC);
-
- if (!vpage)
- return -ENOMEM;
-
- /* kuser helpers */
- memcpy((void *)vpage + 0x1000 - kuser_sz, __kuser_helper_start,
- kuser_sz);
-
- /* sigreturn code */
- memcpy((void *)vpage + AARCH32_KERN_SIGRET_CODE_OFFSET,
- __aarch32_sigret_code_start, sigret_sz);
-
- flush_icache_range(vpage, vpage + PAGE_SIZE);
- vectors_page[0] = virt_to_page(vpage);
-
- return 0;
-}
-arch_initcall(alloc_vectors_page);
-
-int aarch32_setup_vectors_page(struct linux_binprm *bprm, int uses_interp)
-{
- struct mm_struct *mm = current->mm;
- unsigned long addr = AARCH32_VECTORS_BASE;
- static const struct vm_special_mapping spec = {
- .name = "[vectors]",
- .pages = vectors_page,
-
- };
- void *ret;
-
- if (down_write_killable(&mm->mmap_sem))
- return -EINTR;
- current->mm->context.vdso = (void *)addr;
-
- /* Map vectors page at the high address. */
- ret = _install_special_mapping(mm, addr, PAGE_SIZE,
- VM_READ|VM_EXEC|VM_MAYREAD|VM_MAYEXEC,
- &spec);
-
- up_write(&mm->mmap_sem);
-
- return PTR_ERR_OR_ZERO(ret);
-}
-#endif /* CONFIG_COMPAT */
-
-static int vdso_mremap(const struct vm_special_mapping *sm,
- struct vm_area_struct *new_vma)
+static int __vdso_remap(enum arch_vdso_type arch_index,
+ const struct vm_special_mapping *sm,
+ struct vm_area_struct *new_vma)
{
unsigned long new_size = new_vma->vm_end - new_vma->vm_start;
- unsigned long vdso_size = vdso_end - vdso_start;
+ unsigned long vdso_size = vdso_lookup[arch_index].vdso_code_end -
+ vdso_lookup[arch_index].vdso_code_start;
if (vdso_size != new_size)
return -EINVAL;
@@ -124,7 +108,292 @@ static int vdso_mremap(const struct vm_special_mapping *sm,
return 0;
}
-static struct vm_special_mapping vdso_spec[2] __ro_after_init = {
+static int __vdso_init(enum arch_vdso_type arch_index)
+{
+ int i;
+ struct page **vdso_pagelist;
+ unsigned long pfn;
+
+ if (memcmp(vdso_lookup[arch_index].vdso_code_start, "\177ELF", 4)) {
+ pr_err("vDSO is not a valid ELF object!\n");
+ return -EINVAL;
+ }
+
+ vdso_lookup[arch_index].vdso_pages = (
+ vdso_lookup[arch_index].vdso_code_end -
+ vdso_lookup[arch_index].vdso_code_start) >>
+ PAGE_SHIFT;
+
+ /* Allocate the vDSO pagelist, plus a page for the data. */
+ vdso_pagelist = kcalloc(vdso_lookup[arch_index].vdso_pages + 1,
+ sizeof(struct page *),
+ GFP_KERNEL);
+ if (vdso_pagelist == NULL)
+ return -ENOMEM;
+
+ /* Grab the vDSO data page. */
+ vdso_pagelist[0] = phys_to_page(__pa_symbol(vdso_data));
+
+
+ /* Grab the vDSO code pages. */
+ pfn = sym_to_pfn(vdso_lookup[arch_index].vdso_code_start);
+
+ for (i = 0; i < vdso_lookup[arch_index].vdso_pages; i++)
+ vdso_pagelist[i + 1] = pfn_to_page(pfn + i);
+
+ vdso_lookup[arch_index].dm->pages = &vdso_pagelist[0];
+ vdso_lookup[arch_index].cm->pages = &vdso_pagelist[1];
+
+ return 0;
+}
+
+static int __setup_additional_pages(enum arch_vdso_type arch_index,
+ struct mm_struct *mm,
+ struct linux_binprm *bprm,
+ int uses_interp)
+{
+ unsigned long vdso_base, vdso_text_len, vdso_mapping_len;
+ void *ret;
+
+ vdso_text_len = vdso_lookup[arch_index].vdso_pages << PAGE_SHIFT;
+ /* Be sure to map the data page */
+ vdso_mapping_len = vdso_text_len + PAGE_SIZE;
+
+ vdso_base = get_unmapped_area(NULL, 0, vdso_mapping_len, 0, 0);
+ if (IS_ERR_VALUE(vdso_base)) {
+ ret = ERR_PTR(vdso_base);
+ goto up_fail;
+ }
+
+ ret = _install_special_mapping(mm, vdso_base, PAGE_SIZE,
+ VM_READ|VM_MAYREAD,
+ vdso_lookup[arch_index].dm);
+ if (IS_ERR(ret))
+ goto up_fail;
+
+ vdso_base += PAGE_SIZE;
+ mm->context.vdso = (void *)vdso_base;
+ ret = _install_special_mapping(mm, vdso_base, vdso_text_len,
+ VM_READ|VM_EXEC|
+ VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC,
+ vdso_lookup[arch_index].cm);
+ if (IS_ERR(ret))
+ goto up_fail;
+
+ return 0;
+
+up_fail:
+ mm->context.vdso = NULL;
+ return PTR_ERR(ret);
+}
+
+#ifdef CONFIG_COMPAT
+/*
+ * Create and map the vectors page for AArch32 tasks.
+ */
+#ifdef CONFIG_COMPAT_VDSO
+static int aarch32_vdso_mremap(const struct vm_special_mapping *sm,
+ struct vm_area_struct *new_vma)
+{
+ return __vdso_remap(ARM64_VDSO32, sm, new_vma);
+}
+#endif /* CONFIG_COMPAT_VDSO */
+
+/*
+ * aarch32_vdso_pages:
+ * 0 - kuser helpers
+ * 1 - sigreturn code
+ * or (CONFIG_COMPAT_VDSO):
+ * 0 - kuser helpers
+ * 1 - vdso data
+ * 2 - vdso code
+ */
+#define C_VECTORS 0
+#ifdef CONFIG_COMPAT_VDSO
+#define C_VVAR 1
+#define C_VDSO 2
+#define C_PAGES (C_VDSO + 1)
+#else
+#define C_SIGPAGE 1
+#define C_PAGES (C_SIGPAGE + 1)
+#endif /* CONFIG_COMPAT_VDSO */
+static struct page *aarch32_vdso_pages[C_PAGES] __ro_after_init;
+static struct vm_special_mapping aarch32_vdso_spec[C_PAGES] = {
+ {
+ .name = "[vectors]", /* ABI */
+ .pages = &aarch32_vdso_pages[C_VECTORS],
+ },
+#ifdef CONFIG_COMPAT_VDSO
+ {
+ .name = "[vvar]",
+ },
+ {
+ .name = "[vdso]",
+ .mremap = aarch32_vdso_mremap,
+ },
+#else
+ {
+ .name = "[sigpage]", /* ABI */
+ .pages = &aarch32_vdso_pages[C_SIGPAGE],
+ },
+#endif /* CONFIG_COMPAT_VDSO */
+};
+
+static int aarch32_alloc_kuser_vdso_page(void)
+{
+ extern char __kuser_helper_start[], __kuser_helper_end[];
+ int kuser_sz = __kuser_helper_end - __kuser_helper_start;
+ unsigned long vdso_page;
+
+ if (!IS_ENABLED(CONFIG_KUSER_HELPERS))
+ return 0;
+
+ vdso_page = get_zeroed_page(GFP_ATOMIC);
+ if (!vdso_page)
+ return -ENOMEM;
+
+ memcpy((void *)(vdso_page + 0x1000 - kuser_sz), __kuser_helper_start,
+ kuser_sz);
+ aarch32_vdso_pages[C_VECTORS] = virt_to_page(vdso_page);
+ flush_dcache_page(aarch32_vdso_pages[C_VECTORS]);
+ return 0;
+}
+
+#ifdef CONFIG_COMPAT_VDSO
+static int __aarch32_alloc_vdso_pages(void)
+{
+ int ret;
+
+ vdso_lookup[ARM64_VDSO32].dm = &aarch32_vdso_spec[C_VVAR];
+ vdso_lookup[ARM64_VDSO32].cm = &aarch32_vdso_spec[C_VDSO];
+
+ ret = __vdso_init(ARM64_VDSO32);
+ if (ret)
+ return ret;
+
+ return aarch32_alloc_kuser_vdso_page();
+}
+#else
+static int __aarch32_alloc_vdso_pages(void)
+{
+ extern char __aarch32_sigret_code_start[], __aarch32_sigret_code_end[];
+ int sigret_sz = __aarch32_sigret_code_end - __aarch32_sigret_code_start;
+ unsigned long sigpage;
+ int ret;
+
+ sigpage = get_zeroed_page(GFP_ATOMIC);
+ if (!sigpage)
+ return -ENOMEM;
+
+ memcpy((void *)sigpage, __aarch32_sigret_code_start, sigret_sz);
+ aarch32_vdso_pages[C_SIGPAGE] = virt_to_page(sigpage);
+ flush_dcache_page(aarch32_vdso_pages[C_SIGPAGE]);
+
+ ret = aarch32_alloc_kuser_vdso_page();
+ if (ret)
+ free_page(sigpage);
+
+ return ret;
+}
+#endif /* CONFIG_COMPAT_VDSO */
+
+static int __init aarch32_alloc_vdso_pages(void)
+{
+ return __aarch32_alloc_vdso_pages();
+}
+arch_initcall(aarch32_alloc_vdso_pages);
+
+static int aarch32_kuser_helpers_setup(struct mm_struct *mm)
+{
+ void *ret;
+
+ if (!IS_ENABLED(CONFIG_KUSER_HELPERS))
+ return 0;
+
+ /*
+ * Avoid VM_MAYWRITE for compatibility with arch/arm/, where it's
+ * not safe to CoW the page containing the CPU exception vectors.
+ */
+ ret = _install_special_mapping(mm, AARCH32_VECTORS_BASE, PAGE_SIZE,
+ VM_READ | VM_EXEC |
+ VM_MAYREAD | VM_MAYEXEC,
+ &aarch32_vdso_spec[C_VECTORS]);
+
+ return PTR_ERR_OR_ZERO(ret);
+}
+
+#ifndef CONFIG_COMPAT_VDSO
+static int aarch32_sigreturn_setup(struct mm_struct *mm)
+{
+ unsigned long addr;
+ void *ret;
+
+ addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, 0);
+ if (IS_ERR_VALUE(addr)) {
+ ret = ERR_PTR(addr);
+ goto out;
+ }
+
+ /*
+ * VM_MAYWRITE is required to allow gdb to Copy-on-Write and
+ * set breakpoints.
+ */
+ ret = _install_special_mapping(mm, addr, PAGE_SIZE,
+ VM_READ | VM_EXEC | VM_MAYREAD |
+ VM_MAYWRITE | VM_MAYEXEC,
+ &aarch32_vdso_spec[C_SIGPAGE]);
+ if (IS_ERR(ret))
+ goto out;
+
+ mm->context.vdso = (void *)addr;
+
+out:
+ return PTR_ERR_OR_ZERO(ret);
+}
+#endif /* !CONFIG_COMPAT_VDSO */
+
+int aarch32_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
+{
+ struct mm_struct *mm = current->mm;
+ int ret;
+
+ if (down_write_killable(&mm->mmap_sem))
+ return -EINTR;
+
+ ret = aarch32_kuser_helpers_setup(mm);
+ if (ret)
+ goto out;
+
+#ifdef CONFIG_COMPAT_VDSO
+ ret = __setup_additional_pages(ARM64_VDSO32,
+ mm,
+ bprm,
+ uses_interp);
+#else
+ ret = aarch32_sigreturn_setup(mm);
+#endif /* CONFIG_COMPAT_VDSO */
+
+out:
+ up_write(&mm->mmap_sem);
+ return ret;
+}
+#endif /* CONFIG_COMPAT */
+
+static int vdso_mremap(const struct vm_special_mapping *sm,
+ struct vm_area_struct *new_vma)
+{
+ return __vdso_remap(ARM64_VDSO, sm, new_vma);
+}
+
+/*
+ * aarch64_vdso_pages:
+ * 0 - vvar
+ * 1 - vdso
+ */
+#define A_VVAR 0
+#define A_VDSO 1
+#define A_PAGES (A_VDSO + 1)
+static struct vm_special_mapping vdso_spec[A_PAGES] __ro_after_init = {
{
.name = "[vvar]",
},
@@ -136,37 +405,10 @@ static struct vm_special_mapping vdso_spec[2] __ro_after_init = {
static int __init vdso_init(void)
{
- int i;
- struct page **vdso_pagelist;
- unsigned long pfn;
+ vdso_lookup[ARM64_VDSO].dm = &vdso_spec[A_VVAR];
+ vdso_lookup[ARM64_VDSO].cm = &vdso_spec[A_VDSO];
- if (memcmp(vdso_start, "\177ELF", 4)) {
- pr_err("vDSO is not a valid ELF object!\n");
- return -EINVAL;
- }
-
- vdso_pages = (vdso_end - vdso_start) >> PAGE_SHIFT;
-
- /* Allocate the vDSO pagelist, plus a page for the data. */
- vdso_pagelist = kcalloc(vdso_pages + 1, sizeof(struct page *),
- GFP_KERNEL);
- if (vdso_pagelist == NULL)
- return -ENOMEM;
-
- /* Grab the vDSO data page. */
- vdso_pagelist[0] = phys_to_page(__pa_symbol(vdso_data));
-
-
- /* Grab the vDSO code pages. */
- pfn = sym_to_pfn(vdso_start);
-
- for (i = 0; i < vdso_pages; i++)
- vdso_pagelist[i + 1] = pfn_to_page(pfn + i);
-
- vdso_spec[0].pages = &vdso_pagelist[0];
- vdso_spec[1].pages = &vdso_pagelist[1];
-
- return 0;
+ return __vdso_init(ARM64_VDSO);
}
arch_initcall(vdso_init);
@@ -174,84 +416,17 @@ int arch_setup_additional_pages(struct linux_binprm *bprm,
int uses_interp)
{
struct mm_struct *mm = current->mm;
- unsigned long vdso_base, vdso_text_len, vdso_mapping_len;
- void *ret;
-
- vdso_text_len = vdso_pages << PAGE_SHIFT;
- /* Be sure to map the data page */
- vdso_mapping_len = vdso_text_len + PAGE_SIZE;
+ int ret;
if (down_write_killable(&mm->mmap_sem))
return -EINTR;
- vdso_base = get_unmapped_area(NULL, 0, vdso_mapping_len, 0, 0);
- if (IS_ERR_VALUE(vdso_base)) {
- ret = ERR_PTR(vdso_base);
- goto up_fail;
- }
- ret = _install_special_mapping(mm, vdso_base, PAGE_SIZE,
- VM_READ|VM_MAYREAD,
- &vdso_spec[0]);
- if (IS_ERR(ret))
- goto up_fail;
- vdso_base += PAGE_SIZE;
- mm->context.vdso = (void *)vdso_base;
- ret = _install_special_mapping(mm, vdso_base, vdso_text_len,
- VM_READ|VM_EXEC|
- VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC,
- &vdso_spec[1]);
- if (IS_ERR(ret))
- goto up_fail;
-
+ ret = __setup_additional_pages(ARM64_VDSO,
+ mm,
+ bprm,
+ uses_interp);
up_write(&mm->mmap_sem);
- return 0;
-up_fail:
- mm->context.vdso = NULL;
- up_write(&mm->mmap_sem);
- return PTR_ERR(ret);
-}
-
-/*
- * Update the vDSO data page to keep in sync with kernel timekeeping.
- */
-void update_vsyscall(struct timekeeper *tk)
-{
- u32 use_syscall = !tk->tkr_mono.clock->archdata.vdso_direct;
-
- ++vdso_data->tb_seq_count;
- smp_wmb();
-
- vdso_data->use_syscall = use_syscall;
- vdso_data->xtime_coarse_sec = tk->xtime_sec;
- vdso_data->xtime_coarse_nsec = tk->tkr_mono.xtime_nsec >>
- tk->tkr_mono.shift;
- vdso_data->wtm_clock_sec = tk->wall_to_monotonic.tv_sec;
- vdso_data->wtm_clock_nsec = tk->wall_to_monotonic.tv_nsec;
-
- /* Read without the seqlock held by clock_getres() */
- WRITE_ONCE(vdso_data->hrtimer_res, hrtimer_resolution);
-
- if (!use_syscall) {
- /* tkr_mono.cycle_last == tkr_raw.cycle_last */
- vdso_data->cs_cycle_last = tk->tkr_mono.cycle_last;
- vdso_data->raw_time_sec = tk->raw_sec;
- vdso_data->raw_time_nsec = tk->tkr_raw.xtime_nsec;
- vdso_data->xtime_clock_sec = tk->xtime_sec;
- vdso_data->xtime_clock_nsec = tk->tkr_mono.xtime_nsec;
- vdso_data->cs_mono_mult = tk->tkr_mono.mult;
- vdso_data->cs_raw_mult = tk->tkr_raw.mult;
- /* tkr_mono.shift == tkr_raw.shift */
- vdso_data->cs_shift = tk->tkr_mono.shift;
- }
-
- smp_wmb();
- ++vdso_data->tb_seq_count;
-}
-
-void update_vsyscall_tz(void)
-{
- vdso_data->tz_minuteswest = sys_tz.tz_minuteswest;
- vdso_data->tz_dsttime = sys_tz.tz_dsttime;
+ return ret;
}
diff --git a/arch/arm64/kernel/vdso/Makefile b/arch/arm64/kernel/vdso/Makefile
index b215c71..5fb656a 100644
--- a/arch/arm64/kernel/vdso/Makefile
+++ b/arch/arm64/kernel/vdso/Makefile
@@ -6,23 +6,49 @@
# Heavily based on the vDSO Makefiles for other archs.
#
-obj-vdso := gettimeofday.o note.o sigreturn.o
+# Absolute relocation type $(ARCH_REL_TYPE_ABS) needs to be defined before
+# the inclusion of generic Makefile.
+ARCH_REL_TYPE_ABS := R_AARCH64_JUMP_SLOT|R_AARCH64_GLOB_DAT|R_AARCH64_ABS64
+include $(srctree)/lib/vdso/Makefile
+
+obj-vdso := vgettimeofday.o note.o sigreturn.o
# Build rules
targets := $(obj-vdso) vdso.so vdso.so.dbg
obj-vdso := $(addprefix $(obj)/, $(obj-vdso))
-ccflags-y := -shared -fno-common -fno-builtin
-ccflags-y += -nostdlib -Wl,-soname=linux-vdso.so.1 \
- $(call cc-ldoption, -Wl$(comma)--hash-style=sysv)
+ldflags-y := -shared -nostdlib -soname=linux-vdso.so.1 --hash-style=sysv \
+ --build-id -n -T
+ccflags-y += $(DISABLE_LTO)
+
+ccflags-y := -fno-common -fno-builtin -fno-stack-protector -ffixed-x18
+ccflags-y += -DDISABLE_BRANCH_PROFILING
+
+VDSO_LDFLAGS := -Bsymbolic
+
+CFLAGS_REMOVE_vgettimeofday.o = $(CC_FLAGS_FTRACE) -Os $(CC_FLAGS_SCS)
+KBUILD_CFLAGS += $(DISABLE_LTO)
+KASAN_SANITIZE := n
+UBSAN_SANITIZE := n
+OBJECT_FILES_NON_STANDARD := y
+KCOV_INSTRUMENT := n
+
+CFLAGS_vgettimeofday.o = -O2 -mcmodel=tiny -fasynchronous-unwind-tables
+
+ifneq ($(c-gettimeofday-y),)
+ CFLAGS_vgettimeofday.o += -include $(c-gettimeofday-y)
+endif
+
+# Clang versions less than 8 do not support -mcmodel=tiny
+ifeq ($(CONFIG_CC_IS_CLANG), y)
+ ifeq ($(shell test $(CONFIG_CLANG_VERSION) -lt 80000; echo $$?),0)
+ CFLAGS_REMOVE_vgettimeofday.o += -mcmodel=tiny
+ endif
+endif
# Disable gcov profiling for VDSO code
GCOV_PROFILE := n
-# Workaround for bare-metal (ELF) toolchains that neglect to pass -shared
-# down to collect2, resulting in silent corruption of the vDSO image.
-ccflags-y += -Wl,-shared
-
obj-y += vdso.o
extra-y += vdso.lds
CPPFLAGS_vdso.lds += -P -C -U$(ARCH)
@@ -32,7 +58,7 @@
# Link rule for the .so file, .lds has to be first
$(obj)/vdso.so.dbg: $(src)/vdso.lds $(obj-vdso)
- $(call if_changed,vdsold)
+ $(call if_changed,vdsold_and_vdso_check)
# Strip rule for the .so file
$(obj)/%.so: OBJCOPYFLAGS := -S
@@ -49,16 +75,13 @@
include/generated/vdso-offsets.h: $(obj)/vdso.so.dbg FORCE
$(call if_changed,vdsosym)
-# Assembly rules for the .S files
-$(obj-vdso): %.o: %.S FORCE
- $(call if_changed_dep,vdsoas)
-
# Actual build commands
-quiet_cmd_vdsold = VDSOL $@
- cmd_vdsold = $(CC) $(c_flags) -Wl,-n -Wl,-T $^ -o $@
quiet_cmd_vdsoas = VDSOA $@
cmd_vdsoas = $(CC) $(a_flags) -c -o $@ $<
+quiet_cmd_vdsold_and_vdso_check = LD $@
+ cmd_vdsold_and_vdso_check = $(cmd_ld); $(cmd_vdso_check)
+
# Install commands for the unstripped file
quiet_cmd_vdso_install = INSTALL $@
cmd_vdso_install = cp $(obj)/$@.dbg $(MODLIB)/vdso/$@
diff --git a/arch/arm64/kernel/vdso/gettimeofday.S b/arch/arm64/kernel/vdso/gettimeofday.S
deleted file mode 100644
index b6faf8b..0000000
--- a/arch/arm64/kernel/vdso/gettimeofday.S
+++ /dev/null
@@ -1,334 +0,0 @@
-/*
- * Userspace implementations of gettimeofday() and friends.
- *
- * Copyright (C) 2012 ARM Limited
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- * Author: Will Deacon <will.deacon@arm.com>
- */
-
-#include <linux/linkage.h>
-#include <asm/asm-offsets.h>
-#include <asm/unistd.h>
-
-#define NSEC_PER_SEC_LO16 0xca00
-#define NSEC_PER_SEC_HI16 0x3b9a
-
-vdso_data .req x6
-seqcnt .req w7
-w_tmp .req w8
-x_tmp .req x8
-
-/*
- * Conventions for macro arguments:
- * - An argument is write-only if its name starts with "res".
- * - All other arguments are read-only, unless otherwise specified.
- */
-
- .macro seqcnt_acquire
-9999: ldr seqcnt, [vdso_data, #VDSO_TB_SEQ_COUNT]
- tbnz seqcnt, #0, 9999b
- dmb ishld
- .endm
-
- .macro seqcnt_check fail
- dmb ishld
- ldr w_tmp, [vdso_data, #VDSO_TB_SEQ_COUNT]
- cmp w_tmp, seqcnt
- b.ne \fail
- .endm
-
- .macro syscall_check fail
- ldr w_tmp, [vdso_data, #VDSO_USE_SYSCALL]
- cbnz w_tmp, \fail
- .endm
-
- .macro get_nsec_per_sec res
- mov \res, #NSEC_PER_SEC_LO16
- movk \res, #NSEC_PER_SEC_HI16, lsl #16
- .endm
-
- /*
- * Returns the clock delta, in nanoseconds left-shifted by the clock
- * shift.
- */
- .macro get_clock_shifted_nsec res, cycle_last, mult
- /* Read the virtual counter. */
- isb
- mrs x_tmp, cntvct_el0
- /* Calculate cycle delta and convert to ns. */
- sub \res, x_tmp, \cycle_last
- /* We can only guarantee 56 bits of precision. */
- movn x_tmp, #0xff00, lsl #48
- and \res, x_tmp, \res
- mul \res, \res, \mult
- /*
- * Fake address dependency from the value computed from the counter
- * register to subsequent data page accesses so that the sequence
- * locking also orders the read of the counter.
- */
- and x_tmp, \res, xzr
- add vdso_data, vdso_data, x_tmp
- .endm
-
- /*
- * Returns in res_{sec,nsec} the REALTIME timespec, based on the
- * "wall time" (xtime) and the clock_mono delta.
- */
- .macro get_ts_realtime res_sec, res_nsec, \
- clock_nsec, xtime_sec, xtime_nsec, nsec_to_sec
- add \res_nsec, \clock_nsec, \xtime_nsec
- udiv x_tmp, \res_nsec, \nsec_to_sec
- add \res_sec, \xtime_sec, x_tmp
- msub \res_nsec, x_tmp, \nsec_to_sec, \res_nsec
- .endm
-
- /*
- * Returns in res_{sec,nsec} the timespec based on the clock_raw delta,
- * used for CLOCK_MONOTONIC_RAW.
- */
- .macro get_ts_clock_raw res_sec, res_nsec, clock_nsec, nsec_to_sec
- udiv \res_sec, \clock_nsec, \nsec_to_sec
- msub \res_nsec, \res_sec, \nsec_to_sec, \clock_nsec
- .endm
-
- /* sec and nsec are modified in place. */
- .macro add_ts sec, nsec, ts_sec, ts_nsec, nsec_to_sec
- /* Add timespec. */
- add \sec, \sec, \ts_sec
- add \nsec, \nsec, \ts_nsec
-
- /* Normalise the new timespec. */
- cmp \nsec, \nsec_to_sec
- b.lt 9999f
- sub \nsec, \nsec, \nsec_to_sec
- add \sec, \sec, #1
-9999:
- cmp \nsec, #0
- b.ge 9998f
- add \nsec, \nsec, \nsec_to_sec
- sub \sec, \sec, #1
-9998:
- .endm
-
- .macro clock_gettime_return, shift=0
- .if \shift == 1
- lsr x11, x11, x12
- .endif
- stp x10, x11, [x1, #TSPEC_TV_SEC]
- mov x0, xzr
- ret
- .endm
-
- .macro jump_slot jumptable, index, label
- .if (. - \jumptable) != 4 * (\index)
- .error "Jump slot index mismatch"
- .endif
- b \label
- .endm
-
- .text
-
-/* int __kernel_gettimeofday(struct timeval *tv, struct timezone *tz); */
-ENTRY(__kernel_gettimeofday)
- .cfi_startproc
- adr vdso_data, _vdso_data
- /* If tv is NULL, skip to the timezone code. */
- cbz x0, 2f
-
- /* Compute the time of day. */
-1: seqcnt_acquire
- syscall_check fail=4f
- ldr x10, [vdso_data, #VDSO_CS_CYCLE_LAST]
- /* w11 = cs_mono_mult, w12 = cs_shift */
- ldp w11, w12, [vdso_data, #VDSO_CS_MONO_MULT]
- ldp x13, x14, [vdso_data, #VDSO_XTIME_CLK_SEC]
-
- get_nsec_per_sec res=x9
- lsl x9, x9, x12
-
- get_clock_shifted_nsec res=x15, cycle_last=x10, mult=x11
- seqcnt_check fail=1b
- get_ts_realtime res_sec=x10, res_nsec=x11, \
- clock_nsec=x15, xtime_sec=x13, xtime_nsec=x14, nsec_to_sec=x9
-
- /* Convert ns to us. */
- mov x13, #1000
- lsl x13, x13, x12
- udiv x11, x11, x13
- stp x10, x11, [x0, #TVAL_TV_SEC]
-2:
- /* If tz is NULL, return 0. */
- cbz x1, 3f
- ldp w4, w5, [vdso_data, #VDSO_TZ_MINWEST]
- stp w4, w5, [x1, #TZ_MINWEST]
-3:
- mov x0, xzr
- ret
-4:
- /* Syscall fallback. */
- mov x8, #__NR_gettimeofday
- svc #0
- ret
- .cfi_endproc
-ENDPROC(__kernel_gettimeofday)
-
-#define JUMPSLOT_MAX CLOCK_MONOTONIC_COARSE
-
-/* int __kernel_clock_gettime(clockid_t clock_id, struct timespec *tp); */
-ENTRY(__kernel_clock_gettime)
- .cfi_startproc
- cmp w0, #JUMPSLOT_MAX
- b.hi syscall
- adr vdso_data, _vdso_data
- adr x_tmp, jumptable
- add x_tmp, x_tmp, w0, uxtw #2
- br x_tmp
-
- ALIGN
-jumptable:
- jump_slot jumptable, CLOCK_REALTIME, realtime
- jump_slot jumptable, CLOCK_MONOTONIC, monotonic
- b syscall
- b syscall
- jump_slot jumptable, CLOCK_MONOTONIC_RAW, monotonic_raw
- jump_slot jumptable, CLOCK_REALTIME_COARSE, realtime_coarse
- jump_slot jumptable, CLOCK_MONOTONIC_COARSE, monotonic_coarse
-
- .if (. - jumptable) != 4 * (JUMPSLOT_MAX + 1)
- .error "Wrong jumptable size"
- .endif
-
- ALIGN
-realtime:
- seqcnt_acquire
- syscall_check fail=syscall
- ldr x10, [vdso_data, #VDSO_CS_CYCLE_LAST]
- /* w11 = cs_mono_mult, w12 = cs_shift */
- ldp w11, w12, [vdso_data, #VDSO_CS_MONO_MULT]
- ldp x13, x14, [vdso_data, #VDSO_XTIME_CLK_SEC]
-
- /* All computations are done with left-shifted nsecs. */
- get_nsec_per_sec res=x9
- lsl x9, x9, x12
-
- get_clock_shifted_nsec res=x15, cycle_last=x10, mult=x11
- seqcnt_check fail=realtime
- get_ts_realtime res_sec=x10, res_nsec=x11, \
- clock_nsec=x15, xtime_sec=x13, xtime_nsec=x14, nsec_to_sec=x9
- clock_gettime_return shift=1
-
- ALIGN
-monotonic:
- seqcnt_acquire
- syscall_check fail=syscall
- ldr x10, [vdso_data, #VDSO_CS_CYCLE_LAST]
- /* w11 = cs_mono_mult, w12 = cs_shift */
- ldp w11, w12, [vdso_data, #VDSO_CS_MONO_MULT]
- ldp x13, x14, [vdso_data, #VDSO_XTIME_CLK_SEC]
- ldp x3, x4, [vdso_data, #VDSO_WTM_CLK_SEC]
-
- /* All computations are done with left-shifted nsecs. */
- lsl x4, x4, x12
- get_nsec_per_sec res=x9
- lsl x9, x9, x12
-
- get_clock_shifted_nsec res=x15, cycle_last=x10, mult=x11
- seqcnt_check fail=monotonic
- get_ts_realtime res_sec=x10, res_nsec=x11, \
- clock_nsec=x15, xtime_sec=x13, xtime_nsec=x14, nsec_to_sec=x9
-
- add_ts sec=x10, nsec=x11, ts_sec=x3, ts_nsec=x4, nsec_to_sec=x9
- clock_gettime_return shift=1
-
- ALIGN
-monotonic_raw:
- seqcnt_acquire
- syscall_check fail=syscall
- ldr x10, [vdso_data, #VDSO_CS_CYCLE_LAST]
- /* w11 = cs_raw_mult, w12 = cs_shift */
- ldp w12, w11, [vdso_data, #VDSO_CS_SHIFT]
- ldp x13, x14, [vdso_data, #VDSO_RAW_TIME_SEC]
-
- /* All computations are done with left-shifted nsecs. */
- get_nsec_per_sec res=x9
- lsl x9, x9, x12
-
- get_clock_shifted_nsec res=x15, cycle_last=x10, mult=x11
- seqcnt_check fail=monotonic_raw
- get_ts_clock_raw res_sec=x10, res_nsec=x11, \
- clock_nsec=x15, nsec_to_sec=x9
-
- add_ts sec=x10, nsec=x11, ts_sec=x13, ts_nsec=x14, nsec_to_sec=x9
- clock_gettime_return shift=1
-
- ALIGN
-realtime_coarse:
- seqcnt_acquire
- ldp x10, x11, [vdso_data, #VDSO_XTIME_CRS_SEC]
- seqcnt_check fail=realtime_coarse
- clock_gettime_return
-
- ALIGN
-monotonic_coarse:
- seqcnt_acquire
- ldp x10, x11, [vdso_data, #VDSO_XTIME_CRS_SEC]
- ldp x13, x14, [vdso_data, #VDSO_WTM_CLK_SEC]
- seqcnt_check fail=monotonic_coarse
-
- /* Computations are done in (non-shifted) nsecs. */
- get_nsec_per_sec res=x9
- add_ts sec=x10, nsec=x11, ts_sec=x13, ts_nsec=x14, nsec_to_sec=x9
- clock_gettime_return
-
- ALIGN
-syscall: /* Syscall fallback. */
- mov x8, #__NR_clock_gettime
- svc #0
- ret
- .cfi_endproc
-ENDPROC(__kernel_clock_gettime)
-
-/* int __kernel_clock_getres(clockid_t clock_id, struct timespec *res); */
-ENTRY(__kernel_clock_getres)
- .cfi_startproc
- cmp w0, #CLOCK_REALTIME
- ccmp w0, #CLOCK_MONOTONIC, #0x4, ne
- ccmp w0, #CLOCK_MONOTONIC_RAW, #0x4, ne
- b.ne 1f
-
- adr vdso_data, _vdso_data
- ldr w2, [vdso_data, #CLOCK_REALTIME_RES]
- b 2f
-1:
- cmp w0, #CLOCK_REALTIME_COARSE
- ccmp w0, #CLOCK_MONOTONIC_COARSE, #0x4, ne
- b.ne 4f
- ldr x2, 5f
-2:
- cbz x1, 3f
- stp xzr, x2, [x1]
-
-3: /* res == NULL. */
- mov w0, wzr
- ret
-
-4: /* Syscall fallback. */
- mov x8, #__NR_clock_getres
- svc #0
- ret
-5:
- .quad CLOCK_COARSE_RES
- .cfi_endproc
-ENDPROC(__kernel_clock_getres)
diff --git a/arch/arm64/kernel/vdso/vdso.lds.S b/arch/arm64/kernel/vdso/vdso.lds.S
index b3e6c4d..3dc1198 100644
--- a/arch/arm64/kernel/vdso/vdso.lds.S
+++ b/arch/arm64/kernel/vdso/vdso.lds.S
@@ -94,6 +94,7 @@
__kernel_gettimeofday;
__kernel_clock_gettime;
__kernel_clock_getres;
+ __kernel_time;
local: *;
};
}
diff --git a/arch/arm64/kernel/vdso/vgettimeofday.c b/arch/arm64/kernel/vdso/vgettimeofday.c
new file mode 100644
index 0000000..09be632
--- /dev/null
+++ b/arch/arm64/kernel/vdso/vgettimeofday.c
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * ARM64 userspace implementations of gettimeofday() and similar.
+ *
+ * Copyright (C) 2018 ARM Limited
+ *
+ */
+
+int __kernel_clock_gettime(clockid_t clock,
+ struct __kernel_timespec *ts)
+{
+ return __cvdso_clock_gettime(clock, ts);
+}
+
+int __kernel_gettimeofday(struct __kernel_old_timeval *tv,
+ struct timezone *tz)
+{
+ return __cvdso_gettimeofday(tv, tz);
+}
+
+int __kernel_clock_getres(clockid_t clock_id,
+ struct __kernel_timespec *res)
+{
+ return __cvdso_clock_getres(clock_id, res);
+}
+
+time_t __kernel_time(time_t *time)
+{
+ return __cvdso_time(time);
+}
diff --git a/arch/arm64/kernel/vdso32/.gitignore b/arch/arm64/kernel/vdso32/.gitignore
new file mode 100644
index 0000000..4fea950
--- /dev/null
+++ b/arch/arm64/kernel/vdso32/.gitignore
@@ -0,0 +1,2 @@
+vdso.lds
+vdso.so.raw
diff --git a/arch/arm64/kernel/vdso32/Makefile b/arch/arm64/kernel/vdso32/Makefile
new file mode 100644
index 0000000..a873072
--- /dev/null
+++ b/arch/arm64/kernel/vdso32/Makefile
@@ -0,0 +1,204 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for vdso32
+#
+
+# Absolute relocation type $(ARCH_REL_TYPE_ABS) needs to be defined before
+# the inclusion of generic Makefile.
+ARCH_REL_TYPE_ABS := R_ARM_JUMP_SLOT|R_ARM_GLOB_DAT|R_ARM_ABS32
+include $(srctree)/lib/vdso/Makefile
+
+# Same as cc-*option, but using CC_COMPAT instead of CC
+ifeq ($(CONFIG_CC_IS_CLANG), y)
+CC_COMPAT_CLANG_FLAGS := --target=$(notdir $(CROSS_COMPILE_COMPAT:%-=%))
+
+CC_COMPAT ?= $(CC)
+CC_COMPAT += $(CC_COMPAT_CLANG_FLAGS)
+
+ifeq ($(LLVM),1)
+LD_COMPAT ?= $(LD)
+else
+LD_COMPAT ?= $(CROSS_COMPILE_COMPAT)ld
+endif
+else
+CC_COMPAT ?= $(CROSS_COMPILE_COMPAT)gcc
+LD_COMPAT ?= $(CROSS_COMPILE_COMPAT)ld
+endif
+
+cc32-option = $(call try-run,\
+ $(CC_COMPAT) $(1) -c -x c /dev/null -o "$$TMP",$(1),$(2))
+cc32-disable-warning = $(call try-run,\
+ $(CC_COMPAT) -W$(strip $(1)) -c -x c /dev/null -o "$$TMP",-Wno-$(strip $(1)))
+cc32-as-instr = $(call try-run,\
+ printf "%b\n" "$(1)" | $(CC_COMPAT) $(VDSO_AFLAGS) -c -x assembler -o "$$TMP" -,$(2),$(3))
+
+# We cannot use the global flags to compile the vDSO files, the main reason
+# being that the 32-bit compiler may be older than the main (64-bit) compiler
+# and therefore may not understand flags set using $(cc-option ...). Besides,
+# arch-specific options should be taken from the arm Makefile instead of the
+# arm64 one.
+# As a result we set our own flags here.
+
+# KBUILD_CPPFLAGS and NOSTDINC_FLAGS from top-level Makefile
+VDSO_CPPFLAGS := -D__KERNEL__ -nostdinc -isystem $(shell $(CC_COMPAT) -print-file-name=include)
+VDSO_CPPFLAGS += $(LINUXINCLUDE)
+
+# Common C and assembly flags
+# From top-level Makefile
+VDSO_CAFLAGS := $(VDSO_CPPFLAGS)
+ifneq ($(shell $(CC_COMPAT) --version 2>&1 | head -n 1 | grep clang),)
+VDSO_CAFLAGS += --target=$(notdir $(CROSS_COMPILE_COMPAT:%-=%))
+endif
+
+VDSO_CAFLAGS += $(call cc32-option,-fno-PIE)
+ifdef CONFIG_DEBUG_INFO
+VDSO_CAFLAGS += -g
+endif
+
+# From arm Makefile
+VDSO_CAFLAGS += $(call cc32-option,-fno-dwarf2-cfi-asm)
+VDSO_CAFLAGS += -mabi=aapcs-linux -mfloat-abi=soft
+ifeq ($(CONFIG_CPU_BIG_ENDIAN), y)
+VDSO_CAFLAGS += -mbig-endian
+else
+VDSO_CAFLAGS += -mlittle-endian
+endif
+
+# From arm vDSO Makefile
+VDSO_CAFLAGS += -fPIC -fno-builtin -fno-stack-protector
+VDSO_CAFLAGS += -DDISABLE_BRANCH_PROFILING
+
+
+# Try to compile for ARMv8. If the compiler is too old and doesn't support it,
+# fall back to v7. There is no easy way to check for what architecture the code
+# is being compiled, so define a macro specifying that (see arch/arm/Makefile).
+VDSO_CAFLAGS += $(call cc32-option,-march=armv8-a -D__LINUX_ARM_ARCH__=8,\
+ -march=armv7-a -D__LINUX_ARM_ARCH__=7)
+
+VDSO_CFLAGS := $(VDSO_CAFLAGS)
+VDSO_CFLAGS += -DENABLE_COMPAT_VDSO=1
+# KBUILD_CFLAGS from top-level Makefile
+VDSO_CFLAGS += -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
+ -fno-strict-aliasing -fno-common \
+ -Werror-implicit-function-declaration \
+ -Wno-format-security \
+ -std=gnu89
+VDSO_CFLAGS += -O2
+# Some useful compiler-dependent flags from top-level Makefile
+VDSO_CFLAGS += $(call cc32-option,-Wdeclaration-after-statement,)
+VDSO_CFLAGS += $(call cc32-option,-Wno-pointer-sign)
+VDSO_CFLAGS += $(call cc32-option,-fno-strict-overflow)
+VDSO_CFLAGS += $(call cc32-option,-Werror=strict-prototypes)
+VDSO_CFLAGS += $(call cc32-option,-Werror=date-time)
+VDSO_CFLAGS += $(call cc32-option,-Werror=incompatible-pointer-types)
+
+# The 32-bit compiler does not provide 128-bit integers, which are used in
+# some headers that are indirectly included from the vDSO code.
+# This hack makes the compiler happy and should trigger a warning/error if
+# variables of such type are referenced.
+VDSO_CFLAGS += -D__uint128_t='void*'
+# Silence some warnings coming from headers that operate on long's
+# (on GCC 4.8 or older, there is unfortunately no way to silence this warning)
+VDSO_CFLAGS += $(call cc32-disable-warning,shift-count-overflow)
+VDSO_CFLAGS += -Wno-int-to-pointer-cast
+
+VDSO_AFLAGS := $(VDSO_CAFLAGS)
+VDSO_AFLAGS += -D__ASSEMBLY__
+
+# Check for binutils support for dmb ishld
+dmbinstr := $(call cc32-as-instr,dmb ishld,-DCONFIG_AS_DMB_ISHLD=1)
+
+VDSO_CFLAGS += $(dmbinstr)
+VDSO_AFLAGS += $(dmbinstr)
+
+# From arm vDSO Makefile
+VDSO_LDFLAGS += -Bsymbolic --no-undefined -soname=linux-vdso.so.1
+VDSO_LDFLAGS += -z max-page-size=4096 -z common-page-size=4096
+VDSO_LDFLAGS += -nostdlib -shared --hash-style=sysv --build-id
+
+
+# Borrow vdsomunge.c from the arm vDSO
+# We have to use a relative path because scripts/Makefile.host prefixes
+# $(hostprogs-y) with $(obj)
+munge := ../../../arm/vdso/vdsomunge
+hostprogs-y := $(munge)
+
+c-obj-vdso := note.o
+c-obj-vdso-gettimeofday := vgettimeofday.o
+asm-obj-vdso := sigreturn.o
+
+ifneq ($(c-gettimeofday-y),)
+VDSO_CFLAGS_gettimeofday_o += -include $(c-gettimeofday-y)
+endif
+
+VDSO_CFLAGS_REMOVE_vgettimeofday.o = $(CC_FLAGS_FTRACE) -Os
+
+# Build rules
+targets := $(c-obj-vdso) $(c-obj-vdso-gettimeofday) $(asm-obj-vdso) vdso.so vdso.so.dbg vdso.so.raw
+c-obj-vdso := $(addprefix $(obj)/, $(c-obj-vdso))
+c-obj-vdso-gettimeofday := $(addprefix $(obj)/, $(c-obj-vdso-gettimeofday))
+asm-obj-vdso := $(addprefix $(obj)/, $(asm-obj-vdso))
+obj-vdso := $(c-obj-vdso) $(c-obj-vdso-gettimeofday) $(asm-obj-vdso)
+
+obj-y += vdso.o
+extra-y += vdso.lds
+CPPFLAGS_vdso.lds += -P -C -U$(ARCH)
+
+# Force dependency (vdso.s includes vdso.so through incbin)
+$(obj)/vdso.o: $(obj)/vdso.so
+
+include/generated/vdso32-offsets.h: $(obj)/vdso.so.dbg FORCE
+ $(call if_changed,vdsosym)
+
+# Strip rule for vdso.so
+$(obj)/vdso.so: OBJCOPYFLAGS := -S
+$(obj)/vdso.so: $(obj)/vdso.so.dbg FORCE
+ $(call if_changed,objcopy)
+
+$(obj)/vdso.so.dbg: $(obj)/vdso.so.raw $(obj)/$(munge) FORCE
+ $(call if_changed,vdsomunge)
+
+# Link rule for the .so file, .lds has to be first
+$(obj)/vdso.so.raw: $(src)/vdso.lds $(obj-vdso) FORCE
+ $(call if_changed,vdsold_and_vdso_check)
+
+# Compilation rules for the vDSO sources
+$(c-obj-vdso): %.o: %.c FORCE
+ $(call if_changed_dep,vdsocc)
+$(c-obj-vdso-gettimeofday): %.o: %.c FORCE
+ $(call if_changed_dep,vdsocc_gettimeofday)
+$(asm-obj-vdso): %.o: %.S FORCE
+ $(call if_changed_dep,vdsoas)
+
+# Actual build commands
+quiet_cmd_vdsold_and_vdso_check = LD32 $@
+ cmd_vdsold_and_vdso_check = $(cmd_vdsold); $(cmd_vdso_check)
+
+quiet_cmd_vdsold = LD32 $@
+ cmd_vdsold = $(LD_COMPAT) $(VDSO_LDFLAGS) \
+ -T $(filter %.lds,$^) $(filter %.o,$^) -o $@
+quiet_cmd_vdsocc = CC32 $@
+ cmd_vdsocc = $(CC_COMPAT) -Wp,-MD,$(depfile) $(VDSO_CFLAGS) -c -o $@ $<
+quiet_cmd_vdsocc_gettimeofday = CC32 $@
+ cmd_vdsocc_gettimeofday = $(CC_COMPAT) -Wp,-MD,$(depfile) $(VDSO_CFLAGS) $(VDSO_CFLAGS_gettimeofday_o) -c -o $@ $<
+quiet_cmd_vdsoas = AS32 $@
+ cmd_vdsoas = $(CC_COMPAT) -Wp,-MD,$(depfile) $(VDSO_AFLAGS) -c -o $@ $<
+
+quiet_cmd_vdsomunge = MUNGE $@
+ cmd_vdsomunge = $(obj)/$(munge) $< $@
+
+# Generate vDSO offsets using helper script (borrowed from the 64-bit vDSO)
+gen-vdsosym := $(srctree)/$(src)/../vdso/gen_vdso_offsets.sh
+quiet_cmd_vdsosym = VDSOSYM $@
+# The AArch64 nm should be able to read an AArch32 binary
+ cmd_vdsosym = $(NM) $< | $(gen-vdsosym) | LC_ALL=C sort > $@
+
+# Install commands for the unstripped file
+quiet_cmd_vdso_install = INSTALL32 $@
+ cmd_vdso_install = cp $(obj)/$@.dbg $(MODLIB)/vdso/vdso32.so
+
+vdso.so: $(obj)/vdso.so.dbg
+ @mkdir -p $(MODLIB)/vdso
+ $(call cmd,vdso_install)
+
+vdso_install: vdso.so
diff --git a/arch/arm64/kernel/vdso32/note.c b/arch/arm64/kernel/vdso32/note.c
new file mode 100644
index 0000000..eff5bf9
--- /dev/null
+++ b/arch/arm64/kernel/vdso32/note.c
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2012-2018 ARM Limited
+ *
+ * This supplies .note.* sections to go into the PT_NOTE inside the vDSO text.
+ * Here we can supply some information useful to userland.
+ */
+
+#include <linux/uts.h>
+#include <linux/version.h>
+#include <linux/elfnote.h>
+#include <linux/build-salt.h>
+
+ELFNOTE32("Linux", 0, LINUX_VERSION_CODE);
+BUILD_SALT;
diff --git a/arch/arm64/kernel/vdso32/sigreturn.S b/arch/arm64/kernel/vdso32/sigreturn.S
new file mode 100644
index 0000000..1a81277
--- /dev/null
+++ b/arch/arm64/kernel/vdso32/sigreturn.S
@@ -0,0 +1,62 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * This file provides both A32 and T32 versions, in accordance with the
+ * arm sigreturn code.
+ *
+ * Copyright (C) 2018 ARM Limited
+ */
+
+#include <linux/linkage.h>
+#include <asm/asm-offsets.h>
+#include <asm/unistd.h>
+
+#define ARM_ENTRY(name) \
+ ENTRY(name)
+
+#define ARM_ENDPROC(name) \
+ .type name, %function; \
+ END(name)
+
+ .text
+
+ .arm
+ .fnstart
+ .save {r0-r15}
+ .pad #COMPAT_SIGFRAME_REGS_OFFSET
+ nop
+ARM_ENTRY(__kernel_sigreturn_arm)
+ mov r7, #__NR_compat_sigreturn
+ svc #0
+ .fnend
+ARM_ENDPROC(__kernel_sigreturn_arm)
+
+ .fnstart
+ .save {r0-r15}
+ .pad #COMPAT_RT_SIGFRAME_REGS_OFFSET
+ nop
+ARM_ENTRY(__kernel_rt_sigreturn_arm)
+ mov r7, #__NR_compat_rt_sigreturn
+ svc #0
+ .fnend
+ARM_ENDPROC(__kernel_rt_sigreturn_arm)
+
+ .thumb
+ .fnstart
+ .save {r0-r15}
+ .pad #COMPAT_SIGFRAME_REGS_OFFSET
+ nop
+ARM_ENTRY(__kernel_sigreturn_thumb)
+ mov r7, #__NR_compat_sigreturn
+ svc #0
+ .fnend
+ARM_ENDPROC(__kernel_sigreturn_thumb)
+
+ .fnstart
+ .save {r0-r15}
+ .pad #COMPAT_RT_SIGFRAME_REGS_OFFSET
+ nop
+ARM_ENTRY(__kernel_rt_sigreturn_thumb)
+ mov r7, #__NR_compat_rt_sigreturn
+ svc #0
+ .fnend
+ARM_ENDPROC(__kernel_rt_sigreturn_thumb)
diff --git a/arch/arm64/kernel/vdso32/vdso.S b/arch/arm64/kernel/vdso32/vdso.S
new file mode 100644
index 0000000..e72ac7b
--- /dev/null
+++ b/arch/arm64/kernel/vdso32/vdso.S
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2012 ARM Limited
+ */
+
+#include <linux/init.h>
+#include <linux/linkage.h>
+#include <linux/const.h>
+#include <asm/page.h>
+
+ .globl vdso32_start, vdso32_end
+ .section .rodata
+ .balign PAGE_SIZE
+vdso32_start:
+ .incbin "arch/arm64/kernel/vdso32/vdso.so"
+ .balign PAGE_SIZE
+vdso32_end:
+
+ .previous
diff --git a/arch/arm64/kernel/vdso32/vdso.lds.S b/arch/arm64/kernel/vdso32/vdso.lds.S
new file mode 100644
index 0000000..2222c78
--- /dev/null
+++ b/arch/arm64/kernel/vdso32/vdso.lds.S
@@ -0,0 +1,83 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Adapted from arm64 version.
+ *
+ * GNU linker script for the VDSO library.
+ * Heavily based on the vDSO linker scripts for other archs.
+ *
+ * Copyright (C) 2012-2018 ARM Limited
+ */
+
+#include <linux/const.h>
+#include <asm/page.h>
+#include <asm/vdso.h>
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+
+SECTIONS
+{
+ PROVIDE_HIDDEN(_vdso_data = . - PAGE_SIZE);
+ . = VDSO_LBASE + SIZEOF_HEADERS;
+
+ .hash : { *(.hash) } :text
+ .gnu.hash : { *(.gnu.hash) }
+ .dynsym : { *(.dynsym) }
+ .dynstr : { *(.dynstr) }
+ .gnu.version : { *(.gnu.version) }
+ .gnu.version_d : { *(.gnu.version_d) }
+ .gnu.version_r : { *(.gnu.version_r) }
+
+ .note : { *(.note.*) } :text :note
+
+ .dynamic : { *(.dynamic) } :text :dynamic
+
+ .rodata : { *(.rodata*) } :text
+
+ .text : { *(.text*) } :text =0xe7f001f2
+
+ .got : { *(.got) }
+ .rel.plt : { *(.rel.plt) }
+
+ /DISCARD/ : {
+ *(.note.GNU-stack)
+ *(.data .data.* .gnu.linkonce.d.* .sdata*)
+ *(.bss .sbss .dynbss .dynsbss)
+ }
+}
+
+/*
+ * We must supply the ELF program headers explicitly to get just one
+ * PT_LOAD segment, and set the flags explicitly to make segments read-only.
+ */
+PHDRS
+{
+ text PT_LOAD FLAGS(5) FILEHDR PHDRS; /* PF_R|PF_X */
+ dynamic PT_DYNAMIC FLAGS(4); /* PF_R */
+ note PT_NOTE FLAGS(4); /* PF_R */
+}
+
+VERSION
+{
+ LINUX_2.6 {
+ global:
+ __vdso_clock_gettime;
+ __vdso_gettimeofday;
+ __vdso_clock_getres;
+ __kernel_sigreturn_arm;
+ __kernel_sigreturn_thumb;
+ __kernel_rt_sigreturn_arm;
+ __kernel_rt_sigreturn_thumb;
+ __vdso_clock_gettime64;
+ __vdso_time;
+ local: *;
+ };
+}
+
+/*
+ * Make the sigreturn code visible to the kernel.
+ */
+VDSO_compat_sigreturn_arm = __kernel_sigreturn_arm;
+VDSO_compat_sigreturn_thumb = __kernel_sigreturn_thumb;
+VDSO_compat_rt_sigreturn_arm = __kernel_rt_sigreturn_arm;
+VDSO_compat_rt_sigreturn_thumb = __kernel_rt_sigreturn_thumb;
diff --git a/arch/arm64/kernel/vdso32/vgettimeofday.c b/arch/arm64/kernel/vdso32/vgettimeofday.c
new file mode 100644
index 0000000..9296385
--- /dev/null
+++ b/arch/arm64/kernel/vdso32/vgettimeofday.c
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * ARM64 compat userspace implementations of gettimeofday() and similar.
+ *
+ * Copyright (C) 2018 ARM Limited
+ *
+ */
+
+int __vdso_clock_gettime(clockid_t clock,
+ struct old_timespec32 *ts)
+{
+ return __cvdso_clock_gettime32(clock, ts);
+}
+
+int __vdso_clock_gettime64(clockid_t clock,
+ struct __kernel_timespec *ts)
+{
+ return __cvdso_clock_gettime(clock, ts);
+}
+
+int __vdso_gettimeofday(struct __kernel_old_timeval *tv,
+ struct timezone *tz)
+{
+ return __cvdso_gettimeofday(tv, tz);
+}
+
+int __vdso_clock_getres(clockid_t clock_id,
+ struct old_timespec32 *res)
+{
+ return __cvdso_clock_getres_time32(clock_id, res);
+}
+
+time_t __vdso_time(time_t *time)
+{
+ return __cvdso_time(time);
+}
+
+/* Avoid unresolved references emitted by GCC */
+
+void __aeabi_unwind_cpp_pr0(void)
+{
+}
+
+void __aeabi_unwind_cpp_pr1(void)
+{
+}
+
+void __aeabi_unwind_cpp_pr2(void)
+{
+}
diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S
index 69e7c8d..05df6ff 100644
--- a/arch/arm64/kernel/vmlinux.lds.S
+++ b/arch/arm64/kernel/vmlinux.lds.S
@@ -162,6 +162,9 @@
*(.altinstructions)
__alt_instructions_end = .;
}
+ .altinstr_replacement : {
+ *(.altinstr_replacement)
+ }
. = ALIGN(PAGE_SIZE);
__inittext_end = .;
@@ -189,6 +192,15 @@
__rela_offset = ABSOLUTE(ADDR(.rela.dyn) - KIMAGE_VADDR);
__rela_size = SIZEOF(.rela.dyn);
+#ifdef CONFIG_RELR
+ .relr.dyn : ALIGN(8) {
+ *(.relr.dyn)
+ }
+
+ __relr_offset = ABSOLUTE(ADDR(.relr.dyn) - KIMAGE_VADDR);
+ __relr_size = SIZEOF(.relr.dyn);
+#endif
+
. = ALIGN(SEGMENT_ALIGN);
__initdata_end = .;
__init_end = .;
diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig
index 47b23bf..86fe9b3 100644
--- a/arch/arm64/kvm/Kconfig
+++ b/arch/arm64/kvm/Kconfig
@@ -23,7 +23,6 @@
depends on OF
select MMU_NOTIFIER
select PREEMPT_NOTIFIERS
- select ANON_INODES
select HAVE_KVM_CPU_RELAX_INTERCEPT
select HAVE_KVM_ARCH_TLB_FLUSH_ALL
select KVM_MMIO
diff --git a/arch/arm64/kvm/hyp/Makefile b/arch/arm64/kvm/hyp/Makefile
index feef06f..1f1282b 100644
--- a/arch/arm64/kvm/hyp/Makefile
+++ b/arch/arm64/kvm/hyp/Makefile
@@ -4,7 +4,12 @@
#
ccflags-y += -fno-stack-protector -DDISABLE_BRANCH_PROFILING \
- $(DISABLE_STACKLEAK_PLUGIN)
+ $(DISABLE_STACKLEAK_PLUGIN) \
+ $(DISABLE_CFI)
+
+ifeq ($(cc-name),clang)
+ccflags-y += -fno-jump-tables
+endif
KVM=../../../../virt/kvm
@@ -29,3 +34,6 @@
KASAN_SANITIZE := n
UBSAN_SANITIZE := n
KCOV_INSTRUMENT := n
+
+# remove the SCS flags from all objects in this directory
+KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_SCS), $(KBUILD_CFLAGS))
diff --git a/arch/arm64/kvm/hyp/entry.S b/arch/arm64/kvm/hyp/entry.S
index fc83e93..4343d70 100644
--- a/arch/arm64/kvm/hyp/entry.S
+++ b/arch/arm64/kvm/hyp/entry.S
@@ -32,7 +32,12 @@
.text
.pushsection .hyp.text, "ax"
+/*
+ * We treat x18 as callee-saved as the host may use it as a platform
+ * register (e.g. for shadow call stack).
+ */
.macro save_callee_saved_regs ctxt
+ str x18, [\ctxt, #CPU_XREG_OFFSET(18)]
stp x19, x20, [\ctxt, #CPU_XREG_OFFSET(19)]
stp x21, x22, [\ctxt, #CPU_XREG_OFFSET(21)]
stp x23, x24, [\ctxt, #CPU_XREG_OFFSET(23)]
@@ -42,6 +47,8 @@
.endm
.macro restore_callee_saved_regs ctxt
+ // We require \ctxt is not x18-x28
+ ldr x18, [\ctxt, #CPU_XREG_OFFSET(18)]
ldp x19, x20, [\ctxt, #CPU_XREG_OFFSET(19)]
ldp x21, x22, [\ctxt, #CPU_XREG_OFFSET(21)]
ldp x23, x24, [\ctxt, #CPU_XREG_OFFSET(23)]
@@ -58,7 +65,7 @@
// x0: vcpu
// x1: host context
// x2-x17: clobbered by macros
- // x18: guest context
+ // x29: guest context
// Store the host regs
save_callee_saved_regs x1
@@ -77,24 +84,21 @@
ret
1:
- add x18, x0, #VCPU_CONTEXT
+ add x29, x0, #VCPU_CONTEXT
// Restore guest regs x0-x17
- ldp x0, x1, [x18, #CPU_XREG_OFFSET(0)]
- ldp x2, x3, [x18, #CPU_XREG_OFFSET(2)]
- ldp x4, x5, [x18, #CPU_XREG_OFFSET(4)]
- ldp x6, x7, [x18, #CPU_XREG_OFFSET(6)]
- ldp x8, x9, [x18, #CPU_XREG_OFFSET(8)]
- ldp x10, x11, [x18, #CPU_XREG_OFFSET(10)]
- ldp x12, x13, [x18, #CPU_XREG_OFFSET(12)]
- ldp x14, x15, [x18, #CPU_XREG_OFFSET(14)]
- ldp x16, x17, [x18, #CPU_XREG_OFFSET(16)]
+ ldp x0, x1, [x29, #CPU_XREG_OFFSET(0)]
+ ldp x2, x3, [x29, #CPU_XREG_OFFSET(2)]
+ ldp x4, x5, [x29, #CPU_XREG_OFFSET(4)]
+ ldp x6, x7, [x29, #CPU_XREG_OFFSET(6)]
+ ldp x8, x9, [x29, #CPU_XREG_OFFSET(8)]
+ ldp x10, x11, [x29, #CPU_XREG_OFFSET(10)]
+ ldp x12, x13, [x29, #CPU_XREG_OFFSET(12)]
+ ldp x14, x15, [x29, #CPU_XREG_OFFSET(14)]
+ ldp x16, x17, [x29, #CPU_XREG_OFFSET(16)]
- // Restore guest regs x19-x29, lr
- restore_callee_saved_regs x18
-
- // Restore guest reg x18
- ldr x18, [x18, #CPU_XREG_OFFSET(18)]
+ // Restore guest regs x18-x29, lr
+ restore_callee_saved_regs x29
// Do not touch any register after this!
eret
@@ -116,7 +120,7 @@
// Retrieve the guest regs x0-x1 from the stack
ldp x2, x3, [sp], #16 // x0, x1
- // Store the guest regs x0-x1 and x4-x18
+ // Store the guest regs x0-x1 and x4-x17
stp x2, x3, [x1, #CPU_XREG_OFFSET(0)]
stp x4, x5, [x1, #CPU_XREG_OFFSET(4)]
stp x6, x7, [x1, #CPU_XREG_OFFSET(6)]
@@ -125,9 +129,8 @@
stp x12, x13, [x1, #CPU_XREG_OFFSET(12)]
stp x14, x15, [x1, #CPU_XREG_OFFSET(14)]
stp x16, x17, [x1, #CPU_XREG_OFFSET(16)]
- str x18, [x1, #CPU_XREG_OFFSET(18)]
- // Store the guest regs x19-x29, lr
+ // Store the guest regs x18-x29, lr
save_callee_saved_regs x1
get_host_ctxt x2, x3
diff --git a/arch/arm64/lib/Makefile b/arch/arm64/lib/Makefile
index 5df2d61..33ce9a5 100644
--- a/arch/arm64/lib/Makefile
+++ b/arch/arm64/lib/Makefile
@@ -11,7 +11,12 @@
# patching of the bl instruction in the caller with an atomic instruction
# when supported by the CPU. Result and argument registers are handled
# correctly, based on the function prototype.
+ifeq ($(CONFIG_LD_IS_LLD), y)
+# https://bugs.llvm.org/show_bug.cgi?id=35841
+obj-$(CONFIG_ARM64_LSE_ATOMICS) += atomic_ll_sc.o
+else
lib-$(CONFIG_ARM64_LSE_ATOMICS) += atomic_ll_sc.o
+endif
CFLAGS_atomic_ll_sc.o := -ffixed-x1 -ffixed-x2 \
-ffixed-x3 -ffixed-x4 -ffixed-x5 -ffixed-x6 \
-ffixed-x7 -fcall-saved-x8 -fcall-saved-x9 \
diff --git a/arch/arm64/lib/copy_page.S b/arch/arm64/lib/copy_page.S
index 076c437..30f9316 100644
--- a/arch/arm64/lib/copy_page.S
+++ b/arch/arm64/lib/copy_page.S
@@ -45,45 +45,45 @@
ldp x14, x15, [x1, #96]
ldp x16, x17, [x1, #112]
- mov x18, #(PAGE_SIZE - 128)
+ add x0, x0, #256
add x1, x1, #128
1:
- subs x18, x18, #128
+ tst x0, #(PAGE_SIZE - 1)
alternative_if ARM64_HAS_NO_HW_PREFETCH
prfm pldl1strm, [x1, #384]
alternative_else_nop_endif
- stnp x2, x3, [x0]
+ stnp x2, x3, [x0, #-256]
ldp x2, x3, [x1]
- stnp x4, x5, [x0, #16]
+ stnp x4, x5, [x0, #16 - 256]
ldp x4, x5, [x1, #16]
- stnp x6, x7, [x0, #32]
+ stnp x6, x7, [x0, #32 - 256]
ldp x6, x7, [x1, #32]
- stnp x8, x9, [x0, #48]
+ stnp x8, x9, [x0, #48 - 256]
ldp x8, x9, [x1, #48]
- stnp x10, x11, [x0, #64]
+ stnp x10, x11, [x0, #64 - 256]
ldp x10, x11, [x1, #64]
- stnp x12, x13, [x0, #80]
+ stnp x12, x13, [x0, #80 - 256]
ldp x12, x13, [x1, #80]
- stnp x14, x15, [x0, #96]
+ stnp x14, x15, [x0, #96 - 256]
ldp x14, x15, [x1, #96]
- stnp x16, x17, [x0, #112]
+ stnp x16, x17, [x0, #112 - 256]
ldp x16, x17, [x1, #112]
add x0, x0, #128
add x1, x1, #128
- b.gt 1b
+ b.ne 1b
- stnp x2, x3, [x0]
- stnp x4, x5, [x0, #16]
- stnp x6, x7, [x0, #32]
- stnp x8, x9, [x0, #48]
- stnp x10, x11, [x0, #64]
- stnp x12, x13, [x0, #80]
- stnp x14, x15, [x0, #96]
- stnp x16, x17, [x0, #112]
+ stnp x2, x3, [x0, #-256]
+ stnp x4, x5, [x0, #16 - 256]
+ stnp x6, x7, [x0, #32 - 256]
+ stnp x8, x9, [x0, #48 - 256]
+ stnp x10, x11, [x0, #64 - 256]
+ stnp x12, x13, [x0, #80 - 256]
+ stnp x14, x15, [x0, #96 - 256]
+ stnp x16, x17, [x0, #112 - 256]
ret
ENDPROC(copy_page)
diff --git a/arch/arm64/mm/cache.S b/arch/arm64/mm/cache.S
index a194fd0..000fb44 100644
--- a/arch/arm64/mm/cache.S
+++ b/arch/arm64/mm/cache.S
@@ -26,6 +26,79 @@
#include <asm/asm-uaccess.h>
/*
+ * __flush_dcache_all()
+ *
+ * Flush the whole D-cache.
+ *
+ * Corrupted registers: x0-x7, x9-x11
+ */
+__flush_dcache_all:
+ dmb sy // ensure ordering with previous memory accesses
+ mrs x0, clidr_el1 // read clidr
+ and x3, x0, #0x7000000 // extract loc from clidr
+ lsr x3, x3, #23 // left align loc bit field
+ cbz x3, finished // if loc is 0, then no need to clean
+ mov x10, #0 // start clean at cache level 0
+loop1:
+ add x2, x10, x10, lsr #1 // work out 3x current cache level
+ lsr x1, x0, x2 // extract cache type bits from clidr
+ and x1, x1, #7 // mask of the bits for current cache only
+ cmp x1, #2 // see what cache we have at this level
+ b.lt skip // skip if no cache, or just i-cache
+ save_and_disable_irqs x9 // make CSSELR and CCSIDR access atomic
+ msr csselr_el1, x10 // select current cache level in csselr
+ isb // isb to sych the new cssr&csidr
+ mrs x1, ccsidr_el1 // read the new ccsidr
+ restore_irqs x9
+ and x2, x1, #7 // extract the length of the cache lines
+ add x2, x2, #4 // add 4 (line length offset)
+ mov x4, #0x3ff
+ and x4, x4, x1, lsr #3 // find maximum number on the way size
+ clz w5, w4 // find bit position of way size increment
+ mov x7, #0x7fff
+ and x7, x7, x1, lsr #13 // extract max number of the index size
+loop2:
+ mov x9, x4 // create working copy of max way size
+loop3:
+ lsl x6, x9, x5
+ orr x11, x10, x6 // factor way and cache number into x11
+ lsl x6, x7, x2
+ orr x11, x11, x6 // factor index number into x11
+ dc cisw, x11 // clean & invalidate by set/way
+ subs x9, x9, #1 // decrement the way
+ b.ge loop3
+ subs x7, x7, #1 // decrement the index
+ b.ge loop2
+skip:
+ add x10, x10, #2 // increment cache number
+ cmp x3, x10
+ b.gt loop1
+finished:
+ mov x10, #0 // swith back to cache level 0
+ msr csselr_el1, x10 // select current cache level in csselr
+ dsb sy
+ isb
+ ret
+ENDPROC(__flush_dcache_all)
+
+/*
+ * flush_cache_all()
+ *
+ * Flush the entire cache system. The data cache flush is now achieved
+ * using atomic clean / invalidates working outwards from L1 cache. This
+ * is done using Set/Way based cache maintenance instructions. The
+ * instruction cache can still be invalidated back to the point of
+ * unification in a single instruction.
+ */
+ENTRY(flush_cache_all)
+ mov x12, lr
+ bl __flush_dcache_all
+ mov x0, #0
+ ic ialluis // I+BTB cache invalidate
+ ret x12
+ENDPROC(flush_cache_all)
+
+/*
* flush_icache_range(start,end)
*
* Ensure that the I and D caches are coherent within specified region.
@@ -157,7 +230,7 @@
* - start - virtual start address of region
* - size - size in question
*/
-__dma_inv_area:
+ENTRY(__dma_inv_area)
add x1, x1, x0
dcache_line_size x2, x3
sub x3, x2, #1
@@ -196,7 +269,7 @@
* - start - virtual start address of region
* - size - size in question
*/
-__dma_clean_area:
+ENTRY(__dma_clean_area)
dcache_by_line_op cvac, sy, x0, x1, x2, x3
ret
ENDPIPROC(__clean_dcache_area_poc)
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index d3a5bb1..b182b67 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -26,24 +26,47 @@
#include <linux/genalloc.h>
#include <linux/dma-direct.h>
#include <linux/dma-contiguous.h>
+#include <linux/mm.h>
+#include <linux/iommu.h>
#include <linux/vmalloc.h>
#include <linux/swiotlb.h>
+#include <linux/dma-removed.h>
#include <linux/pci.h>
+#include <linux/io.h>
#include <asm/cacheflush.h>
+#include <asm/tlbflush.h>
+#include <asm/dma-iommu.h>
+#include <linux/of_address.h>
+#include <linux/dma-mapping-fast.h>
static int swiotlb __ro_after_init;
static pgprot_t __get_dma_pgprot(unsigned long attrs, pgprot_t prot,
bool coherent)
{
- if (!coherent || (attrs & DMA_ATTR_WRITE_COMBINE))
+ if (attrs & DMA_ATTR_STRONGLY_ORDERED)
+ return pgprot_noncached(prot);
+ else if (!coherent || (attrs & DMA_ATTR_WRITE_COMBINE))
return pgprot_writecombine(prot);
return prot;
}
+static bool is_dma_coherent(struct device *dev, unsigned long attrs)
+{
+
+ if (attrs & DMA_ATTR_FORCE_COHERENT)
+ return true;
+ else if (attrs & DMA_ATTR_FORCE_NON_COHERENT)
+ return false;
+ else if (is_device_dma_coherent(dev))
+ return true;
+ else
+ return false;
+}
static struct gen_pool *atomic_pool __ro_after_init;
+#define NO_KERNEL_MAPPING_DUMMY 0x2222
#define DEFAULT_DMA_COHERENT_POOL_SIZE SZ_256K
static size_t atomic_pool_size __initdata = DEFAULT_DMA_COHERENT_POOL_SIZE;
@@ -91,13 +114,50 @@ static int __free_from_pool(void *start, size_t size)
return 1;
}
+static int __dma_update_pte(pte_t *pte, pgtable_t token, unsigned long addr,
+ void *data)
+{
+ struct page *page = virt_to_page(addr);
+ pgprot_t prot = *(pgprot_t *)data;
+
+ set_pte(pte, mk_pte(page, prot));
+ return 0;
+}
+
+static int __dma_clear_pte(pte_t *pte, pgtable_t token, unsigned long addr,
+ void *data)
+{
+ pte_clear(&init_mm, addr, pte);
+ return 0;
+}
+
+static void __dma_remap(struct page *page, size_t size, pgprot_t prot,
+ bool no_kernel_map)
+{
+ unsigned long start = (unsigned long) page_address(page);
+ unsigned long end = start + size;
+ int (*func)(pte_t *pte, pgtable_t token, unsigned long addr,
+ void *data);
+
+ if (no_kernel_map)
+ func = __dma_clear_pte;
+ else
+ func = __dma_update_pte;
+
+ apply_to_page_range(&init_mm, start, size, func, &prot);
+ /* ensure prot is applied before returning */
+ mb();
+ flush_tlb_kernel_range(start, end);
+}
+
+
static void *__dma_alloc(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t flags,
unsigned long attrs)
{
struct page *page;
void *ptr, *coherent_ptr;
- bool coherent = is_device_dma_coherent(dev);
+ bool coherent = is_dma_coherent(dev, attrs);
pgprot_t prot = __get_dma_pgprot(attrs, PAGE_KERNEL, false);
size = PAGE_ALIGN(size);
@@ -113,6 +173,7 @@ static void *__dma_alloc(struct device *dev, size_t size,
}
ptr = swiotlb_alloc(dev, size, dma_handle, flags, attrs);
+
if (!ptr)
goto no_mem;
@@ -120,19 +181,31 @@ static void *__dma_alloc(struct device *dev, size_t size,
if (coherent)
return ptr;
- /* remove any dirty cache lines on the kernel alias */
__dma_flush_area(ptr, size);
- /* create a coherent mapping */
- page = virt_to_page(ptr);
- coherent_ptr = dma_common_contiguous_remap(page, size, VM_USERMAP,
- prot, __builtin_return_address(0));
- if (!coherent_ptr)
- goto no_map;
+ if (attrs & DMA_ATTR_NO_KERNEL_MAPPING) {
+ coherent_ptr = (void *)NO_KERNEL_MAPPING_DUMMY;
+ __dma_remap(virt_to_page(ptr), size, __pgprot(0), true);
+ } else {
+ if ((attrs & DMA_ATTR_STRONGLY_ORDERED))
+ __dma_remap(virt_to_page(ptr), size, __pgprot(0), true);
+ /* create a coherent mapping */
+ page = virt_to_page(ptr);
+ coherent_ptr = dma_common_contiguous_remap(
+ page, size, VM_USERMAP, prot,
+ __builtin_return_address(0));
+ if (!coherent_ptr)
+ goto no_map;
+ }
return coherent_ptr;
no_map:
+ if ((attrs & DMA_ATTR_NO_KERNEL_MAPPING) ||
+ (attrs & DMA_ATTR_STRONGLY_ORDERED))
+ __dma_remap(phys_to_page(dma_to_phys(dev, *dma_handle)),
+ size, PAGE_KERNEL, false);
+
swiotlb_free(dev, size, ptr, *dma_handle, attrs);
no_mem:
return NULL;
@@ -146,11 +219,17 @@ static void __dma_free(struct device *dev, size_t size,
size = PAGE_ALIGN(size);
- if (!is_device_dma_coherent(dev)) {
+ if (!is_dma_coherent(dev, attrs)) {
if (__free_from_pool(vaddr, size))
return;
- vunmap(vaddr);
+ if (!(attrs & DMA_ATTR_NO_KERNEL_MAPPING))
+ vunmap(vaddr);
}
+ if ((attrs & DMA_ATTR_NO_KERNEL_MAPPING) ||
+ (attrs & DMA_ATTR_STRONGLY_ORDERED))
+ __dma_remap(phys_to_page(dma_to_phys(dev, dma_handle)),
+ size, PAGE_KERNEL, false);
+
swiotlb_free(dev, size, swiotlb_addr, dma_handle, attrs);
}
@@ -162,7 +241,7 @@ static dma_addr_t __swiotlb_map_page(struct device *dev, struct page *page,
dma_addr_t dev_addr;
dev_addr = swiotlb_map_page(dev, page, offset, size, dir, attrs);
- if (!is_device_dma_coherent(dev) &&
+ if (!is_dma_coherent(dev, attrs) &&
(attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
__dma_map_area(phys_to_virt(dma_to_phys(dev, dev_addr)), size, dir);
@@ -174,7 +253,7 @@ static void __swiotlb_unmap_page(struct device *dev, dma_addr_t dev_addr,
size_t size, enum dma_data_direction dir,
unsigned long attrs)
{
- if (!is_device_dma_coherent(dev) &&
+ if (!is_dma_coherent(dev, attrs) &&
(attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
__dma_unmap_area(phys_to_virt(dma_to_phys(dev, dev_addr)), size, dir);
swiotlb_unmap_page(dev, dev_addr, size, dir, attrs);
@@ -188,7 +267,7 @@ static int __swiotlb_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
int i, ret;
ret = swiotlb_map_sg_attrs(dev, sgl, nelems, dir, attrs);
- if (!is_device_dma_coherent(dev) &&
+ if (!is_dma_coherent(dev, attrs) &&
(attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
for_each_sg(sgl, sg, ret, i)
__dma_map_area(phys_to_virt(dma_to_phys(dev, sg->dma_address)),
@@ -205,7 +284,7 @@ static void __swiotlb_unmap_sg_attrs(struct device *dev,
struct scatterlist *sg;
int i;
- if (!is_device_dma_coherent(dev) &&
+ if (!is_dma_coherent(dev, attrs) &&
(attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
for_each_sg(sgl, sg, nelems, i)
__dma_unmap_area(phys_to_virt(dma_to_phys(dev, sg->dma_address)),
@@ -282,11 +361,11 @@ static int __swiotlb_mmap(struct device *dev,
void *cpu_addr, dma_addr_t dma_addr, size_t size,
unsigned long attrs)
{
- int ret;
+ int ret = -ENXIO;
unsigned long pfn = dma_to_phys(dev, dma_addr) >> PAGE_SHIFT;
vma->vm_page_prot = __get_dma_pgprot(attrs, vma->vm_page_prot,
- is_device_dma_coherent(dev));
+ is_dma_coherent(dev, attrs));
if (dma_mmap_from_dev_coherent(dev, vma, cpu_addr, size, &ret))
return ret;
@@ -321,6 +400,56 @@ static int __swiotlb_dma_supported(struct device *hwdev, u64 mask)
return 1;
}
+static void *arm64_dma_remap(struct device *dev, void *cpu_addr,
+ dma_addr_t handle, size_t size,
+ unsigned long attrs)
+{
+ struct page *page = phys_to_page(dma_to_phys(dev, handle));
+ bool coherent = is_device_dma_coherent(dev);
+ pgprot_t prot = __get_dma_pgprot(attrs, PAGE_KERNEL, coherent);
+ unsigned long offset = handle & ~PAGE_MASK;
+ struct vm_struct *area;
+ unsigned long addr;
+
+ size = PAGE_ALIGN(size + offset);
+
+ /*
+ * DMA allocation can be mapped to user space, so lets
+ * set VM_USERMAP flags too.
+ */
+ area = get_vm_area(size, VM_USERMAP);
+ if (!area)
+ return NULL;
+
+ addr = (unsigned long)area->addr;
+ area->phys_addr = __pfn_to_phys(page_to_pfn(page));
+
+ if (ioremap_page_range(addr, addr + size, area->phys_addr, prot)) {
+ vunmap((void *)addr);
+ return NULL;
+ }
+ return (void *)addr + offset;
+}
+
+static void arm64_dma_unremap(struct device *dev, void *remapped_addr,
+ size_t size)
+{
+ struct vm_struct *area;
+
+ size = PAGE_ALIGN(size);
+ remapped_addr = (void *)((unsigned long)remapped_addr & PAGE_MASK);
+
+ area = find_vm_area(remapped_addr);
+ if (!area) {
+ WARN(1, "trying to free invalid coherent area: %pK\n",
+ remapped_addr);
+ return;
+ }
+ vunmap(remapped_addr);
+ flush_tlb_kernel_range((unsigned long)remapped_addr,
+ (unsigned long)(remapped_addr + size));
+}
+
static int __swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t addr)
{
if (swiotlb)
@@ -343,6 +472,8 @@ static const struct dma_map_ops arm64_swiotlb_dma_ops = {
.sync_sg_for_device = __swiotlb_sync_sg_for_device,
.dma_supported = __swiotlb_dma_supported,
.mapping_error = __swiotlb_dma_mapping_error,
+ .remap = arm64_dma_remap,
+ .unremap = arm64_dma_unremap,
};
static int __init atomic_pool_init(void)
@@ -393,7 +524,7 @@ static int __init atomic_pool_init(void)
goto out;
remove_mapping:
- dma_common_free_remap(addr, atomic_pool_size, VM_USERMAP);
+ dma_common_free_remap(addr, atomic_pool_size, VM_USERMAP, false);
destroy_genpool:
gen_pool_destroy(atomic_pool);
atomic_pool = NULL;
@@ -414,6 +545,7 @@ static void *__dummy_alloc(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t flags,
unsigned long attrs)
{
+ WARN(1, "dma alloc failure, device may be missing a call to arch_setup_dma_ops");
return NULL;
}
@@ -528,7 +660,7 @@ static void *__iommu_alloc_attrs(struct device *dev, size_t size,
dma_addr_t *handle, gfp_t gfp,
unsigned long attrs)
{
- bool coherent = is_device_dma_coherent(dev);
+ bool coherent = is_dma_coherent(dev, attrs);
int ioprot = dma_info_to_prot(DMA_BIDIRECTIONAL, coherent, attrs);
size_t iosize = size;
void *addr;
@@ -542,7 +674,8 @@ static void *__iommu_alloc_attrs(struct device *dev, size_t size,
* Some drivers rely on this, and we probably don't want the
* possibility of stale kernel data being read by devices anyway.
*/
- gfp |= __GFP_ZERO;
+ if (!(attrs & DMA_ATTR_SKIP_ZEROING))
+ gfp |= __GFP_ZERO;
if (!gfpflags_allow_blocking(gfp)) {
struct page *page;
@@ -634,17 +767,16 @@ static void __iommu_free_attrs(struct device *dev, size_t size, void *cpu_addr,
__free_from_pool(cpu_addr, size);
} else if (attrs & DMA_ATTR_FORCE_CONTIGUOUS) {
struct page *page = vmalloc_to_page(cpu_addr);
-
iommu_dma_unmap_page(dev, handle, iosize, 0, attrs);
dma_release_from_contiguous(dev, page, size >> PAGE_SHIFT);
- dma_common_free_remap(cpu_addr, size, VM_USERMAP);
- } else if (is_vmalloc_addr(cpu_addr)){
+ dma_common_free_remap(cpu_addr, size, VM_USERMAP, false);
+ } else if (is_vmalloc_addr(cpu_addr)) {
struct vm_struct *area = find_vm_area(cpu_addr);
if (WARN_ON(!area || !area->pages))
return;
iommu_dma_free(dev, area->pages, iosize, &handle);
- dma_common_free_remap(cpu_addr, size, VM_USERMAP);
+ dma_common_free_remap(cpu_addr, size, VM_USERMAP, false);
} else {
iommu_dma_unmap_page(dev, handle, iosize, 0, 0);
__free_pages(virt_to_page(cpu_addr), get_order(size));
@@ -657,32 +789,31 @@ static int __iommu_mmap_attrs(struct device *dev, struct vm_area_struct *vma,
{
struct vm_struct *area;
int ret;
+ unsigned long pfn = 0;
vma->vm_page_prot = __get_dma_pgprot(attrs, vma->vm_page_prot,
- is_device_dma_coherent(dev));
+ is_dma_coherent(dev, attrs));
if (dma_mmap_from_dev_coherent(dev, vma, cpu_addr, size, &ret))
return ret;
- if (!is_vmalloc_addr(cpu_addr)) {
- unsigned long pfn = page_to_pfn(virt_to_page(cpu_addr));
- return __swiotlb_mmap_pfn(vma, pfn, size);
- }
-
- if (attrs & DMA_ATTR_FORCE_CONTIGUOUS) {
- /*
- * DMA_ATTR_FORCE_CONTIGUOUS allocations are always remapped,
- * hence in the vmalloc space.
- */
- unsigned long pfn = vmalloc_to_pfn(cpu_addr);
- return __swiotlb_mmap_pfn(vma, pfn, size);
- }
-
area = find_vm_area(cpu_addr);
- if (WARN_ON(!area || !area->pages))
- return -ENXIO;
- return iommu_dma_mmap(area->pages, size, vma);
+ if (area && area->pages)
+ return iommu_dma_mmap(area->pages, size, vma);
+ else if (!is_vmalloc_addr(cpu_addr))
+ pfn = page_to_pfn(virt_to_page(cpu_addr));
+ else if (is_vmalloc_addr(cpu_addr))
+ /*
+ * DMA_ATTR_FORCE_CONTIGUOUS and atomic pool allocations are
+ * always remapped, hence in the vmalloc space.
+ */
+ pfn = vmalloc_to_pfn(cpu_addr);
+
+ if (pfn)
+ return __swiotlb_mmap_pfn(vma, pfn, size);
+
+ return -ENXIO;
}
static int __iommu_get_sgtable(struct device *dev, struct sg_table *sgt,
@@ -690,27 +821,24 @@ static int __iommu_get_sgtable(struct device *dev, struct sg_table *sgt,
size_t size, unsigned long attrs)
{
unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
+ struct page *page = NULL;
struct vm_struct *area = find_vm_area(cpu_addr);
- if (!is_vmalloc_addr(cpu_addr)) {
- struct page *page = virt_to_page(cpu_addr);
- return __swiotlb_get_sgtable_page(sgt, page, size);
- }
-
- if (attrs & DMA_ATTR_FORCE_CONTIGUOUS) {
+ if (area && area->pages)
+ return sg_alloc_table_from_pages(sgt, area->pages, count, 0,
+ size, GFP_KERNEL);
+ else if (!is_vmalloc_addr(cpu_addr))
+ page = virt_to_page(cpu_addr);
+ else if (is_vmalloc_addr(cpu_addr))
/*
- * DMA_ATTR_FORCE_CONTIGUOUS allocations are always remapped,
- * hence in the vmalloc space.
+ * DMA_ATTR_FORCE_CONTIGUOUS and atomic pool allocations
+ * are always remapped, hence in the vmalloc space.
*/
- struct page *page = vmalloc_to_page(cpu_addr);
+ page = vmalloc_to_page(cpu_addr);
+
+ if (page)
return __swiotlb_get_sgtable_page(sgt, page, size);
- }
-
- if (WARN_ON(!area || !area->pages))
- return -ENXIO;
-
- return sg_alloc_table_from_pages(sgt, area->pages, count, 0, size,
- GFP_KERNEL);
+ return -ENXIO;
}
static void __iommu_sync_single_for_cpu(struct device *dev,
@@ -718,11 +846,12 @@ static void __iommu_sync_single_for_cpu(struct device *dev,
enum dma_data_direction dir)
{
phys_addr_t phys;
+ struct iommu_domain *domain = iommu_get_domain_for_dev(dev);
- if (is_device_dma_coherent(dev))
+ if (!domain || iommu_is_iova_coherent(domain, dev_addr))
return;
- phys = iommu_iova_to_phys(iommu_get_domain_for_dev(dev), dev_addr);
+ phys = iommu_iova_to_phys(domain, dev_addr);
__dma_unmap_area(phys_to_virt(phys), size, dir);
}
@@ -731,11 +860,12 @@ static void __iommu_sync_single_for_device(struct device *dev,
enum dma_data_direction dir)
{
phys_addr_t phys;
+ struct iommu_domain *domain = iommu_get_domain_for_dev(dev);
- if (is_device_dma_coherent(dev))
+ if (!domain || iommu_is_iova_coherent(domain, dev_addr))
return;
- phys = iommu_iova_to_phys(iommu_get_domain_for_dev(dev), dev_addr);
+ phys = iommu_iova_to_phys(domain, dev_addr);
__dma_map_area(phys_to_virt(phys), size, dir);
}
@@ -744,7 +874,7 @@ static dma_addr_t __iommu_map_page(struct device *dev, struct page *page,
enum dma_data_direction dir,
unsigned long attrs)
{
- bool coherent = is_device_dma_coherent(dev);
+ bool coherent = is_dma_coherent(dev, attrs);
int prot = dma_info_to_prot(dir, coherent, attrs);
dma_addr_t dev_addr = iommu_dma_map_page(dev, page, offset, size, prot);
@@ -770,9 +900,11 @@ static void __iommu_sync_sg_for_cpu(struct device *dev,
enum dma_data_direction dir)
{
struct scatterlist *sg;
+ dma_addr_t iova = sg_dma_address(sgl);
+ struct iommu_domain *domain = iommu_get_domain_for_dev(dev);
int i;
- if (is_device_dma_coherent(dev))
+ if (!domain || iommu_is_iova_coherent(domain, iova))
return;
for_each_sg(sgl, sg, nelems, i)
@@ -784,9 +916,11 @@ static void __iommu_sync_sg_for_device(struct device *dev,
enum dma_data_direction dir)
{
struct scatterlist *sg;
+ dma_addr_t iova = sg_dma_address(sgl);
+ struct iommu_domain *domain = iommu_get_domain_for_dev(dev);
int i;
- if (is_device_dma_coherent(dev))
+ if (!domain || iommu_is_iova_coherent(domain, iova))
return;
for_each_sg(sgl, sg, nelems, i)
@@ -797,13 +931,18 @@ static int __iommu_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
int nelems, enum dma_data_direction dir,
unsigned long attrs)
{
- bool coherent = is_device_dma_coherent(dev);
+ bool coherent = is_dma_coherent(dev, attrs);
+ int ret;
+
+ ret = iommu_dma_map_sg(dev, sgl, nelems,
+ dma_info_to_prot(dir, coherent, attrs));
+ if (!ret)
+ return ret;
if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
__iommu_sync_sg_for_device(dev, sgl, nelems, dir);
- return iommu_dma_map_sg(dev, sgl, nelems,
- dma_info_to_prot(dir, coherent, attrs));
+ return ret;
}
static void __iommu_unmap_sg_attrs(struct device *dev,
@@ -841,58 +980,26 @@ static int __init __iommu_dma_init(void)
}
arch_initcall(__iommu_dma_init);
-static void __iommu_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
- const struct iommu_ops *ops)
-{
- struct iommu_domain *domain;
-
- if (!ops)
- return;
-
- /*
- * The IOMMU core code allocates the default DMA domain, which the
- * underlying IOMMU driver needs to support via the dma-iommu layer.
- */
- domain = iommu_get_domain_for_dev(dev);
-
- if (!domain)
- goto out_err;
-
- if (domain->type == IOMMU_DOMAIN_DMA) {
- if (iommu_dma_init_domain(domain, dma_base, size, dev))
- goto out_err;
-
- dev->dma_ops = &iommu_dma_ops;
- }
-
- return;
-
-out_err:
- pr_warn("Failed to set up IOMMU for device %s; retaining platform DMA ops\n",
- dev_name(dev));
-}
-
void arch_teardown_dma_ops(struct device *dev)
{
dev->dma_ops = NULL;
}
-
-#else
-
-static void __iommu_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
- const struct iommu_ops *iommu)
-{ }
-
#endif /* CONFIG_IOMMU_DMA */
+static void arm_iommu_setup_dma_ops(struct device *dev, u64 dma_base, u64 size);
+
void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
const struct iommu_ops *iommu, bool coherent)
{
- if (!dev->dma_ops)
- dev->dma_ops = &arm64_swiotlb_dma_ops;
+ if (!dev->dma_ops) {
+ if (dev->removed_mem)
+ set_dma_ops(dev, &removed_dma_ops);
+ else
+ dev->dma_ops = &arm64_swiotlb_dma_ops;
+ }
dev->archdata.dma_coherent = coherent;
- __iommu_setup_dma_ops(dev, dma_base, size, iommu);
+ arm_iommu_setup_dma_ops(dev, dma_base, size);
#ifdef CONFIG_XEN
if (xen_initial_domain()) {
@@ -901,3 +1008,150 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
}
#endif
}
+EXPORT_SYMBOL_GPL(arch_setup_dma_ops);
+
+#ifdef CONFIG_ARM64_DMA_USE_IOMMU
+
+/* guards initialization of default_domain->iova_cookie */
+static DEFINE_MUTEX(iommu_dma_init_mutex);
+
+static int
+iommu_init_mapping(struct device *dev, struct dma_iommu_mapping *mapping)
+{
+ struct iommu_domain *domain = mapping->domain;
+ dma_addr_t dma_base = mapping->base;
+ u64 size = mapping->bits << PAGE_SHIFT;
+ int ret;
+ bool own_cookie;
+
+ /*
+ * if own_cookie is false, then we are sharing the iova_cookie with
+ * another driver, and should not free it on error. Cleanup will be
+ * done when the iommu_domain is freed.
+ */
+ own_cookie = !domain->iova_cookie;
+
+ if (own_cookie) {
+ ret = iommu_get_dma_cookie(domain);
+ if (ret) {
+ dev_err(dev, "iommu_get_dma_cookie failed: %d\n", ret);
+ return ret;
+ }
+ }
+
+ ret = iommu_dma_init_domain(domain, dma_base, size, dev);
+ if (ret) {
+ dev_err(dev, "iommu_dma_init_domain failed: %d\n", ret);
+ if (own_cookie)
+ iommu_put_dma_cookie(domain);
+ return ret;
+ }
+
+ mapping->ops = &iommu_dma_ops;
+ return 0;
+}
+
+static int arm_iommu_get_dma_cookie(struct device *dev,
+ struct dma_iommu_mapping *mapping)
+{
+ int s1_bypass = 0, is_fast = 0;
+ int err = 0;
+
+ mutex_lock(&iommu_dma_init_mutex);
+
+ iommu_domain_get_attr(mapping->domain, DOMAIN_ATTR_S1_BYPASS,
+ &s1_bypass);
+ iommu_domain_get_attr(mapping->domain, DOMAIN_ATTR_FAST, &is_fast);
+
+ if (s1_bypass)
+ mapping->ops = &arm64_swiotlb_dma_ops;
+ else if (is_fast)
+ err = fast_smmu_init_mapping(dev, mapping);
+ else
+ err = iommu_init_mapping(dev, mapping);
+
+ mutex_unlock(&iommu_dma_init_mutex);
+ return err;
+}
+
+/*
+ * Checks for "qcom,iommu-dma-addr-pool" property.
+ * If not present, leaves dma_addr and dma_size unmodified.
+ */
+static void arm_iommu_get_dma_window(struct device *dev, u64 *dma_addr,
+ u64 *dma_size)
+{
+ struct device_node *np;
+ int naddr, nsize, len;
+ const __be32 *ranges;
+
+ if (!dev->of_node)
+ return;
+
+ np = of_parse_phandle(dev->of_node, "qcom,iommu-group", 0);
+ if (!np)
+ np = dev->of_node;
+
+ ranges = of_get_property(np, "qcom,iommu-dma-addr-pool", &len);
+ if (!ranges)
+ return;
+
+ len /= sizeof(u32);
+ naddr = of_n_addr_cells(np);
+ nsize = of_n_size_cells(np);
+ if (len < naddr + nsize) {
+ dev_err(dev, "Invalid length for qcom,iommu-dma-addr-pool, expected %d cells\n",
+ naddr + nsize);
+ return;
+ }
+ if (naddr == 0 || nsize == 0) {
+ dev_err(dev, "Invalid #address-cells %d or #size-cells %d\n",
+ naddr, nsize);
+ return;
+ }
+
+ *dma_addr = of_read_number(ranges, naddr);
+ *dma_size = of_read_number(ranges + naddr, nsize);
+}
+
+static void arm_iommu_setup_dma_ops(struct device *dev, u64 dma_base, u64 size)
+{
+ struct iommu_domain *domain;
+ struct iommu_group *group;
+ struct dma_iommu_mapping mapping = {0};
+
+ group = dev->iommu_group;
+ if (!group)
+ return;
+
+ arm_iommu_get_dma_window(dev, &dma_base, &size);
+
+ domain = iommu_get_domain_for_dev(dev);
+ if (!domain)
+ return;
+
+ /* Allow iommu-debug to call arch_setup_dma_ops to reconfigure itself */
+ if (domain->type != IOMMU_DOMAIN_DMA &&
+ !of_device_is_compatible(dev->of_node, "iommu-debug-test")) {
+ dev_err(dev, "Invalid iommu domain type!\n");
+ return;
+ }
+
+ mapping.base = dma_base;
+ mapping.bits = size >> PAGE_SHIFT;
+ mapping.domain = domain;
+
+ if (arm_iommu_get_dma_cookie(dev, &mapping)) {
+ dev_err(dev, "Failed to get dma cookie\n");
+ return;
+ }
+
+ set_dma_ops(dev, mapping.ops);
+}
+
+#else /*!CONFIG_ARM64_DMA_USE_IOMMU */
+
+static void arm_iommu_setup_dma_ops(struct device *dev, u64 dma_base, u64 size)
+{
+}
+#endif
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index b046006..d44543c 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -39,6 +39,7 @@
#include <asm/exception.h>
#include <asm/debug-monitors.h>
#include <asm/esr.h>
+#include <asm/kasan.h>
#include <asm/sysreg.h>
#include <asm/system_misc.h>
#include <asm/pgtable.h>
@@ -125,6 +126,18 @@ static void mem_abort_decode(unsigned int esr)
data_abort_decode(esr);
}
+static inline bool is_ttbr0_addr(unsigned long addr)
+{
+ /* entry assembly clears tags for TTBR0 addrs */
+ return addr < TASK_SIZE;
+}
+
+static inline bool is_ttbr1_addr(unsigned long addr)
+{
+ /* TTBR1 addresses may have a tag if KASAN_SW_TAGS is in use */
+ return arch_kasan_reset_tag(addr) >= VA_START;
+}
+
/*
* Dump out the page tables associated with 'addr' in the currently active mm.
*/
@@ -134,7 +147,7 @@ void show_pte(unsigned long addr)
pgd_t *pgdp;
pgd_t pgd;
- if (addr < TASK_SIZE) {
+ if (is_ttbr0_addr(addr)) {
/* TTBR0 */
mm = current->active_mm;
if (mm == &init_mm) {
@@ -142,7 +155,7 @@ void show_pte(unsigned long addr)
addr);
return;
}
- } else if (addr >= VA_START) {
+ } else if (is_ttbr1_addr(addr)) {
/* TTBR1 */
mm = &init_mm;
} else {
@@ -248,7 +261,7 @@ static inline bool is_el1_permission_fault(unsigned int esr,
if (fsc_type == ESR_ELx_FSC_PERM)
return true;
- if (addr < TASK_SIZE && system_uses_ttbr0_pan())
+ if (is_ttbr0_addr(addr) && system_uses_ttbr0_pan())
return fsc_type == ESR_ELx_FSC_FAULT &&
(regs->pstate & PSR_PAN_BIT);
@@ -313,7 +326,7 @@ static void __do_user_fault(struct siginfo *info, unsigned int esr)
* type", so we ignore this wrinkle and just return the translation
* fault.)
*/
- if (current->thread.fault_address >= TASK_SIZE) {
+ if (!is_ttbr0_addr(current->thread.fault_address)) {
switch (ESR_ELx_EC(esr)) {
case ESR_ELx_EC_DABT_LOW:
/*
@@ -454,7 +467,7 @@ static int __kprobes do_page_fault(unsigned long addr, unsigned int esr,
mm_flags |= FAULT_FLAG_WRITE;
}
- if (addr < TASK_SIZE && is_el1_permission_fault(esr, regs, addr)) {
+ if (is_ttbr0_addr(addr) && is_el1_permission_fault(esr, regs, addr)) {
/* regs->orig_addr_limit may be 0 if we entered from EL0 */
if (regs->orig_addr_limit == KERNEL_DS)
die_kernel_fault("access to user memory with fs=KERNEL_DS",
@@ -600,11 +613,31 @@ static int __kprobes do_page_fault(unsigned long addr, unsigned int esr,
return 0;
}
+int __weak do_tlb_conf_fault(unsigned long addr,
+ unsigned int esr,
+ struct pt_regs *regs)
+{
+ return 1; /* do_bad default */
+}
+
+int (*do_tlb_conf_fault_cb)(unsigned long addr,
+ unsigned int esr,
+ struct pt_regs *regs)
+ = do_tlb_conf_fault; /* initialization saves us a branch */
+EXPORT_SYMBOL_GPL(do_tlb_conf_fault_cb);
+
+static int _do_tlb_conf_fault(unsigned long addr,
+ unsigned int esr,
+ struct pt_regs *regs)
+{
+ return (*do_tlb_conf_fault_cb)(addr, esr, regs);
+}
+
static int __kprobes do_translation_fault(unsigned long addr,
unsigned int esr,
struct pt_regs *regs)
{
- if (addr < TASK_SIZE)
+ if (is_ttbr0_addr(addr))
return do_page_fault(addr, esr, regs);
do_bad_area(addr, esr, regs);
@@ -707,7 +740,7 @@ static const struct fault_info fault_info[] = {
{ do_bad, SIGKILL, SI_KERNEL, "unknown 45" },
{ do_bad, SIGKILL, SI_KERNEL, "unknown 46" },
{ do_bad, SIGKILL, SI_KERNEL, "unknown 47" },
- { do_bad, SIGKILL, SI_KERNEL, "TLB conflict abort" },
+ { _do_tlb_conf_fault, SIGKILL, SI_KERNEL, "TLB conflict abort" },
{ do_bad, SIGKILL, SI_KERNEL, "Unsupported atomic hardware update fault" },
{ do_bad, SIGKILL, SI_KERNEL, "unknown 50" },
{ do_bad, SIGKILL, SI_KERNEL, "unknown 51" },
@@ -768,7 +801,7 @@ asmlinkage void __exception do_el0_ia_bp_hardening(unsigned long addr,
* re-enabled IRQs. If the address is a kernel address, apply
* BP hardening prior to enabling IRQs and pre-emption.
*/
- if (addr > TASK_SIZE)
+ if (!is_ttbr0_addr(addr))
arm64_apply_bp_hardening();
local_irq_enable();
@@ -783,7 +816,7 @@ asmlinkage void __exception do_sp_pc_abort(unsigned long addr,
struct siginfo info;
if (user_mode(regs)) {
- if (instruction_pointer(regs) > TASK_SIZE)
+ if (!is_ttbr0_addr(instruction_pointer(regs)))
arm64_apply_bp_hardening();
local_irq_enable();
}
@@ -875,7 +908,7 @@ asmlinkage int __exception do_debug_exception(unsigned long addr_if_watchpoint,
if (interrupts_enabled(regs))
trace_hardirqs_off();
- if (user_mode(regs) && pc > TASK_SIZE)
+ if (user_mode(regs) && !is_ttbr0_addr(pc))
arm64_apply_bp_hardening();
if (!inf->fn(addr_if_watchpoint, esr, regs)) {
diff --git a/arch/arm64/mm/flush.c b/arch/arm64/mm/flush.c
index 5c9073b..fb10aa0 100644
--- a/arch/arm64/mm/flush.c
+++ b/arch/arm64/mm/flush.c
@@ -87,6 +87,7 @@ EXPORT_SYMBOL(flush_dcache_page);
/*
* Additional functions defined in assembly.
*/
+EXPORT_SYMBOL(flush_cache_all);
EXPORT_SYMBOL(__flush_icache_range);
#ifdef CONFIG_ARCH_HAS_PMEM_API
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index 29d2f42..65efa46 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -53,6 +53,8 @@
#include <asm/tlb.h>
#include <asm/alternative.h>
+EXPORT_SYMBOL_GPL(kimage_vaddr);
+
/*
* We need to be able to catch inadvertent references to memstart_addr
* that occur (potentially in generic code) before arm64_memblock_init()
diff --git a/arch/arm64/mm/kasan_init.c b/arch/arm64/mm/kasan_init.c
index 1214587..5ef034a 100644
--- a/arch/arm64/mm/kasan_init.c
+++ b/arch/arm64/mm/kasan_init.c
@@ -40,7 +40,7 @@ static phys_addr_t __init kasan_alloc_zeroed_page(int node)
{
void *p = memblock_virt_alloc_try_nid(PAGE_SIZE, PAGE_SIZE,
__pa(MAX_DMA_ADDRESS),
- MEMBLOCK_ALLOC_ACCESSIBLE, node);
+ MEMBLOCK_ALLOC_KASAN, node);
return __pa(p);
}
@@ -48,8 +48,9 @@ static pte_t *__init kasan_pte_offset(pmd_t *pmdp, unsigned long addr, int node,
bool early)
{
if (pmd_none(READ_ONCE(*pmdp))) {
- phys_addr_t pte_phys = early ? __pa_symbol(kasan_zero_pte)
- : kasan_alloc_zeroed_page(node);
+ phys_addr_t pte_phys = early ?
+ __pa_symbol(kasan_early_shadow_pte)
+ : kasan_alloc_zeroed_page(node);
__pmd_populate(pmdp, pte_phys, PMD_TYPE_TABLE);
}
@@ -61,8 +62,9 @@ static pmd_t *__init kasan_pmd_offset(pud_t *pudp, unsigned long addr, int node,
bool early)
{
if (pud_none(READ_ONCE(*pudp))) {
- phys_addr_t pmd_phys = early ? __pa_symbol(kasan_zero_pmd)
- : kasan_alloc_zeroed_page(node);
+ phys_addr_t pmd_phys = early ?
+ __pa_symbol(kasan_early_shadow_pmd)
+ : kasan_alloc_zeroed_page(node);
__pud_populate(pudp, pmd_phys, PMD_TYPE_TABLE);
}
@@ -73,8 +75,9 @@ static pud_t *__init kasan_pud_offset(pgd_t *pgdp, unsigned long addr, int node,
bool early)
{
if (pgd_none(READ_ONCE(*pgdp))) {
- phys_addr_t pud_phys = early ? __pa_symbol(kasan_zero_pud)
- : kasan_alloc_zeroed_page(node);
+ phys_addr_t pud_phys = early ?
+ __pa_symbol(kasan_early_shadow_pud)
+ : kasan_alloc_zeroed_page(node);
__pgd_populate(pgdp, pud_phys, PMD_TYPE_TABLE);
}
@@ -88,8 +91,11 @@ static void __init kasan_pte_populate(pmd_t *pmdp, unsigned long addr,
pte_t *ptep = kasan_pte_offset(pmdp, addr, node, early);
do {
- phys_addr_t page_phys = early ? __pa_symbol(kasan_zero_page)
- : kasan_alloc_zeroed_page(node);
+ phys_addr_t page_phys = early ?
+ __pa_symbol(kasan_early_shadow_page)
+ : kasan_alloc_zeroed_page(node);
+ if (!early)
+ memset(__va(page_phys), KASAN_SHADOW_INIT, PAGE_SIZE);
next = addr + PAGE_SIZE;
set_pte(ptep, pfn_pte(__phys_to_pfn(page_phys), PAGE_KERNEL));
} while (ptep++, addr = next, addr != end && pte_none(READ_ONCE(*ptep)));
@@ -192,7 +198,7 @@ void __init kasan_init(void)
/*
* We are going to perform proper setup of shadow memory.
- * At first we should unmap early shadow (clear_pgds() call bellow).
+ * At first we should unmap early shadow (clear_pgds() call below).
* However, instrumented code couldn't execute without shadow memory.
* tmp_pg_dir used to keep early shadow mapped until full shadow
* setup will be finished.
@@ -206,14 +212,14 @@ void __init kasan_init(void)
kasan_map_populate(kimg_shadow_start, kimg_shadow_end,
early_pfn_to_nid(virt_to_pfn(lm_alias(_text))));
- kasan_populate_zero_shadow((void *)KASAN_SHADOW_START,
- (void *)mod_shadow_start);
- kasan_populate_zero_shadow((void *)kimg_shadow_end,
- kasan_mem_to_shadow((void *)PAGE_OFFSET));
+ kasan_populate_early_shadow((void *)KASAN_SHADOW_START,
+ (void *)mod_shadow_start);
+ kasan_populate_early_shadow((void *)kimg_shadow_end,
+ kasan_mem_to_shadow((void *)PAGE_OFFSET));
if (kimg_shadow_start > mod_shadow_end)
- kasan_populate_zero_shadow((void *)mod_shadow_end,
- (void *)kimg_shadow_start);
+ kasan_populate_early_shadow((void *)mod_shadow_end,
+ (void *)kimg_shadow_start);
for_each_memblock(memory, reg) {
void *start = (void *)__phys_to_virt(reg->base);
@@ -228,14 +234,15 @@ void __init kasan_init(void)
}
/*
- * KAsan may reuse the contents of kasan_zero_pte directly, so we
- * should make sure that it maps the zero page read-only.
+ * KAsan may reuse the contents of kasan_early_shadow_pte directly,
+ * so we should make sure that it maps the zero page read-only.
*/
for (i = 0; i < PTRS_PER_PTE; i++)
- set_pte(&kasan_zero_pte[i],
- pfn_pte(sym_to_pfn(kasan_zero_page), PAGE_KERNEL_RO));
+ set_pte(&kasan_early_shadow_pte[i],
+ pfn_pte(sym_to_pfn(kasan_early_shadow_page),
+ PAGE_KERNEL_RO));
- memset(kasan_zero_page, 0, PAGE_SIZE);
+ memset(kasan_early_shadow_page, KASAN_SHADOW_INIT, PAGE_SIZE);
cpu_replace_ttbr1(lm_alias(swapper_pg_dir));
/* At this point kasan is fully initialized. Enable error messages */
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 0fa5581..29238f6 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -32,6 +32,8 @@
#include <linux/io.h>
#include <linux/mm.h>
#include <linux/vmalloc.h>
+#include <linux/dma-contiguous.h>
+#include <linux/cma.h>
#include <asm/barrier.h>
#include <asm/cputype.h>
@@ -67,6 +69,40 @@ static pte_t bm_pte[PTRS_PER_PTE] __page_aligned_bss;
static pmd_t bm_pmd[PTRS_PER_PMD] __page_aligned_bss __maybe_unused;
static pud_t bm_pud[PTRS_PER_PUD] __page_aligned_bss __maybe_unused;
+struct dma_contig_early_reserve {
+ phys_addr_t base;
+ unsigned long size;
+};
+
+static struct dma_contig_early_reserve dma_mmu_remap[MAX_CMA_AREAS];
+static int dma_mmu_remap_num;
+
+void __init dma_contiguous_early_fixup(phys_addr_t base, unsigned long size)
+{
+ if (dma_mmu_remap_num >= ARRAY_SIZE(dma_mmu_remap)) {
+ pr_err("ARM64: Not enough slots for DMA fixup reserved regions!\n");
+ return;
+ }
+ dma_mmu_remap[dma_mmu_remap_num].base = base;
+ dma_mmu_remap[dma_mmu_remap_num].size = size;
+ dma_mmu_remap_num++;
+}
+
+static bool dma_overlap(phys_addr_t start, phys_addr_t end)
+{
+ int i;
+
+ for (i = 0; i < dma_mmu_remap_num; i++) {
+ phys_addr_t dma_base = dma_mmu_remap[i].base;
+ phys_addr_t dma_end = dma_mmu_remap[i].base +
+ dma_mmu_remap[i].size;
+
+ if ((dma_base < end) && (dma_end > start))
+ return true;
+ }
+ return false;
+}
+
pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
unsigned long size, pgprot_t vma_prot)
{
@@ -200,7 +236,8 @@ static void init_pmd(pud_t *pudp, unsigned long addr, unsigned long end,
/* try section mapping first */
if (((addr | next | phys) & ~SECTION_MASK) == 0 &&
- (flags & NO_BLOCK_MAPPINGS) == 0) {
+ (flags & NO_BLOCK_MAPPINGS) == 0 &&
+ !dma_overlap(phys, phys + next - addr)) {
pmd_set_huge(pmdp, phys, prot);
/*
@@ -299,7 +336,8 @@ static void alloc_init_pud(pgd_t *pgdp, unsigned long addr, unsigned long end,
* For 4K granule only, attempt to put down a 1GB block
*/
if (use_1G_block(addr, next, phys) &&
- (flags & NO_BLOCK_MAPPINGS) == 0) {
+ (flags & NO_BLOCK_MAPPINGS) == 0 &&
+ !dma_overlap(phys, phys + next - addr)) {
pud_set_huge(pudp, phys, prot);
/*
@@ -361,6 +399,27 @@ static phys_addr_t pgd_pgtable_alloc(void)
return __pa(ptr);
}
+/**
+ * create_pgtable_mapping - create a pagetable mapping for given
+ * physical start and end addresses.
+ * @start: physical start address.
+ * @end: physical end address.
+ */
+void create_pgtable_mapping(phys_addr_t start, phys_addr_t end)
+{
+ unsigned long virt = (unsigned long)phys_to_virt(start);
+
+ if (virt < VMALLOC_START) {
+ pr_warn("BUG: not creating mapping for %pa at 0x%016lx - outside kernel range\n",
+ &start, virt);
+ return;
+ }
+
+ __create_pgd_mapping(init_mm.pgd, start, virt, end - start,
+ PAGE_KERNEL, NULL, 0);
+}
+EXPORT_SYMBOL_GPL(create_pgtable_mapping);
+
/*
* This function can only be used to modify existing table entries,
* without allocating new levels of table. Note that this permits the
@@ -699,6 +758,7 @@ int kern_addr_valid(unsigned long addr)
return pfn_valid(pte_pfn(pte));
}
+EXPORT_SYMBOL_GPL(kern_addr_valid);
#ifdef CONFIG_SPARSEMEM_VMEMMAP
#if !ARM64_SWAPPER_USES_SECTION_MAPS
int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node,
@@ -853,7 +913,7 @@ void __set_fixmap(enum fixed_addresses idx,
}
}
-void *__init __fixmap_remap_fdt(phys_addr_t dt_phys, int *size, pgprot_t prot)
+void *__init fixmap_remap_fdt(phys_addr_t dt_phys, int *size, pgprot_t prot)
{
const u64 dt_virt_base = __fix_to_virt(FIX_FDT);
int offset;
@@ -906,17 +966,9 @@ void *__init __fixmap_remap_fdt(phys_addr_t dt_phys, int *size, pgprot_t prot)
return dt_virt;
}
-void *__init fixmap_remap_fdt(phys_addr_t dt_phys)
+int __init arch_ioremap_p4d_supported(void)
{
- void *dt_virt;
- int size;
-
- dt_virt = __fixmap_remap_fdt(dt_phys, &size, PAGE_KERNEL_RO);
- if (!dt_virt)
- return NULL;
-
- memblock_reserve(dt_phys, size);
- return dt_virt;
+ return 0;
}
int __init arch_ioremap_pud_supported(void)
diff --git a/arch/arm64/mm/proc.S b/arch/arm64/mm/proc.S
index ec6aa18..201624a 100644
--- a/arch/arm64/mm/proc.S
+++ b/arch/arm64/mm/proc.S
@@ -47,9 +47,46 @@
/* PTWs cacheable, inner/outer WBWA */
#define TCR_CACHE_FLAGS TCR_IRGN_WBWA | TCR_ORGN_WBWA
+#ifdef CONFIG_KASAN_SW_TAGS
+#define TCR_KASAN_FLAGS TCR_TBI1
+#else
+#define TCR_KASAN_FLAGS 0
+#endif
+
#define MAIR(attr, mt) ((attr) << ((mt) * 8))
/*
+ * cpu_cache_off()
+ *
+ * Turn the CPU D-cache off.
+ */
+ENTRY(cpu_cache_off)
+ mrs x0, sctlr_el1
+ bic x0, x0, #1 << 2 // clear SCTLR.C
+ msr sctlr_el1, x0
+ isb
+ ret
+ENDPROC(cpu_cache_off)
+
+/*
+ * cpu_reset(loc)
+ *
+ * Perform a soft reset of the system. Put the CPU into the same state
+ * as it would be if it had been reset, and branch to what would be the
+ * reset vector. It must be executed with the flat identity mapping.
+ *
+ * - loc - location to jump to for soft reset
+ */
+ .align 5
+ENTRY(cpu_reset)
+ mrs x1, sctlr_el1
+ bic x1, x1, #1
+ msr sctlr_el1, x1 // disable the MMU
+ isb
+ ret x0
+ENDPROC(cpu_reset)
+
+/*
* cpu_do_idle()
*
* Idle the processor (wait for interrupt).
@@ -65,6 +102,8 @@
* cpu_do_suspend - save CPU registers context
*
* x0: virtual address of context pointer
+ *
+ * This must be kept in sync with struct cpu_suspend_ctx in <asm/suspend.h>.
*/
ENTRY(cpu_do_suspend)
mrs x2, tpidr_el0
@@ -89,6 +128,11 @@
stp x8, x9, [x0, #48]
stp x10, x11, [x0, #64]
stp x12, x13, [x0, #80]
+ /*
+ * Save x18 as it may be used as a platform register, e.g. by shadow
+ * call stack.
+ */
+ str x18, [x0, #96]
ret
ENDPROC(cpu_do_suspend)
@@ -105,6 +149,13 @@
ldp x9, x10, [x0, #48]
ldp x11, x12, [x0, #64]
ldp x13, x14, [x0, #80]
+ /*
+ * Restore x18, as it may be used as a platform register, and clear
+ * the buffer to minimize the risk of exposure when used for shadow
+ * call stack.
+ */
+ ldr x18, [x0, #96]
+ str xzr, [x0, #96]
msr tpidr_el0, x2
msr tpidrro_el0, x3
msr contextidr_el1, x4
@@ -258,15 +309,15 @@
/* We're the boot CPU. Wait for the others to catch up */
sevl
1: wfe
- ldaxr w18, [flag_ptr]
- eor w18, w18, num_cpus
- cbnz w18, 1b
+ ldaxr w17, [flag_ptr]
+ eor w17, w17, num_cpus
+ cbnz w17, 1b
/* We need to walk swapper, so turn off the MMU. */
pre_disable_mmu_workaround
- mrs x18, sctlr_el1
- bic x18, x18, #SCTLR_ELx_M
- msr sctlr_el1, x18
+ mrs x17, sctlr_el1
+ bic x17, x17, #SCTLR_ELx_M
+ msr sctlr_el1, x17
isb
/* Everybody is enjoying the idmap, so we can rewrite swapper. */
@@ -289,9 +340,9 @@
isb
/* We're done: fire up the MMU again */
- mrs x18, sctlr_el1
- orr x18, x18, #SCTLR_ELx_M
- msr sctlr_el1, x18
+ mrs x17, sctlr_el1
+ orr x17, x17, #SCTLR_ELx_M
+ msr sctlr_el1, x17
isb
/*
@@ -361,33 +412,9 @@
b.ne do_pte
b next_pmd
- /* Secondary CPUs end up here */
-__idmap_kpti_secondary:
- /* Uninstall swapper before surgery begins */
- __idmap_cpu_set_reserved_ttbr1 x18, x17
-
- /* Increment the flag to let the boot CPU we're ready */
-1: ldxr w18, [flag_ptr]
- add w18, w18, #1
- stxr w17, w18, [flag_ptr]
- cbnz w17, 1b
-
- /* Wait for the boot CPU to finish messing around with swapper */
- sevl
-1: wfe
- ldxr w18, [flag_ptr]
- cbnz w18, 1b
-
- /* All done, act like nothing happened */
- msr ttbr1_el1, swapper_ttb
- isb
- ret
-
.unreq cpu
.unreq num_cpus
.unreq swapper_pa
- .unreq swapper_ttb
- .unreq flag_ptr
.unreq cur_pgdp
.unreq end_pgdp
.unreq pgd
@@ -400,6 +427,31 @@
.unreq cur_ptep
.unreq end_ptep
.unreq pte
+
+ /* Secondary CPUs end up here */
+__idmap_kpti_secondary:
+ /* Uninstall swapper before surgery begins */
+ __idmap_cpu_set_reserved_ttbr1 x16, x17
+
+ /* Increment the flag to let the boot CPU we're ready */
+1: ldxr w16, [flag_ptr]
+ add w16, w16, #1
+ stxr w17, w16, [flag_ptr]
+ cbnz w17, 1b
+
+ /* Wait for the boot CPU to finish messing around with swapper */
+ sevl
+1: wfe
+ ldxr w16, [flag_ptr]
+ cbnz w16, 1b
+
+ /* All done, act like nothing happened */
+ msr ttbr1_el1, swapper_ttb
+ isb
+ ret
+
+ .unreq swapper_ttb
+ .unreq flag_ptr
ENDPROC(idmap_kpti_install_ng_mappings)
.popsection
#endif
@@ -451,7 +503,7 @@
*/
ldr x10, =TCR_TxSZ(VA_BITS) | TCR_CACHE_FLAGS | TCR_SMP_FLAGS | \
TCR_TG_FLAGS | TCR_KASLR_FLAGS | TCR_ASID16 | \
- TCR_TBI0 | TCR_A1
+ TCR_TBI0 | TCR_A1 | TCR_KASAN_FLAGS
tcr_set_idmap_t0sz x10, x9
/*
diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c
index 6876e82..5ae657d 100644
--- a/arch/arm64/net/bpf_jit_comp.c
+++ b/arch/arm64/net/bpf_jit_comp.c
@@ -962,3 +962,25 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *prog)
tmp : orig_prog);
return prog;
}
+
+#ifdef CONFIG_CFI_CLANG
+bool arch_bpf_jit_check_func(const struct bpf_prog *prog)
+{
+ const uintptr_t func = (const uintptr_t)prog->bpf_func;
+
+ /*
+ * bpf_func must be correctly aligned and within the correct region.
+ * module_alloc places JIT code in the module region, unless
+ * ARM64_MODULE_PLTS is enabled, in which case we might end up using
+ * the vmalloc region too.
+ */
+ if (unlikely(!IS_ALIGNED(func, sizeof(u32))))
+ return false;
+
+ if (IS_ENABLED(CONFIG_ARM64_MODULE_PLTS) &&
+ is_vmalloc_addr(prog->bpf_func))
+ return true;
+
+ return (func >= MODULES_VADDR && func < MODULES_END);
+}
+#endif
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index cc8c8d2..08ff7f5 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -21,6 +21,7 @@
select GENERIC_CLOCKEVENTS
select GENERIC_CMOS_UPDATE
select GENERIC_CPU_AUTOPROBE
+ select GENERIC_GETTIMEOFDAY
select GENERIC_IRQ_PROBE
select GENERIC_IRQ_SHOW
select GENERIC_LIB_ASHLDI3
@@ -71,6 +72,7 @@
select HAVE_STACKPROTECTOR
select HAVE_SYSCALL_TRACEPOINTS
select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
+ select HAVE_GENERIC_VDSO
select IRQ_FORCED_THREADING
select MODULES_USE_ELF_RELA if MODULES && 64BIT
select MODULES_USE_ELF_REL if MODULES
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 8f4e169..4c77c7e 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -339,7 +339,7 @@
# See arch/mips/Kbuild for content of core part of the kernel
core-y += arch/mips/
-drivers-$(CONFIG_MIPS_CRC_SUPPORT) += arch/mips/crypto/
+drivers-y += arch/mips/crypto/
drivers-$(CONFIG_OPROFILE) += arch/mips/oprofile/
# suspend and hibernation support
diff --git a/arch/mips/configs/generic_defconfig b/arch/mips/configs/generic_defconfig
index 684c9dc..b8a21b9 100644
--- a/arch/mips/configs/generic_defconfig
+++ b/arch/mips/configs/generic_defconfig
@@ -63,7 +63,7 @@
CONFIG_EXT4_FS=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
-CONFIG_EXT4_ENCRYPTION=y
+CONFIG_FS_ENCRYPTION=y
CONFIG_FANOTIFY=y
CONFIG_FUSE_FS=y
CONFIG_CUSE=y
diff --git a/arch/mips/crypto/Makefile b/arch/mips/crypto/Makefile
index e07aca5..8e1deaf 100644
--- a/arch/mips/crypto/Makefile
+++ b/arch/mips/crypto/Makefile
@@ -4,3 +4,21 @@
#
obj-$(CONFIG_CRYPTO_CRC32_MIPS) += crc32-mips.o
+
+obj-$(CONFIG_CRYPTO_CHACHA_MIPS) += chacha-mips.o
+chacha-mips-y := chacha-core.o chacha-glue.o
+AFLAGS_chacha-core.o += -O2 # needed to fill branch delay slots
+
+obj-$(CONFIG_CRYPTO_POLY1305_MIPS) += poly1305-mips.o
+poly1305-mips-y := poly1305-core.o poly1305-glue.o
+
+perlasm-flavour-$(CONFIG_CPU_MIPS32) := o32
+perlasm-flavour-$(CONFIG_CPU_MIPS64) := 64
+
+quiet_cmd_perlasm = PERLASM $@
+ cmd_perlasm = $(PERL) $(<) $(perlasm-flavour-y) $(@)
+
+$(obj)/poly1305-core.S: $(src)/poly1305-mips.pl FORCE
+ $(call if_changed,perlasm)
+
+targets += poly1305-core.S
diff --git a/arch/mips/crypto/chacha-core.S b/arch/mips/crypto/chacha-core.S
new file mode 100644
index 0000000..5755f69c
--- /dev/null
+++ b/arch/mips/crypto/chacha-core.S
@@ -0,0 +1,497 @@
+/* SPDX-License-Identifier: GPL-2.0 OR MIT */
+/*
+ * Copyright (C) 2016-2018 René van Dorst <opensource@vdorst.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#define MASK_U32 0x3c
+#define CHACHA20_BLOCK_SIZE 64
+#define STACK_SIZE 32
+
+#define X0 $t0
+#define X1 $t1
+#define X2 $t2
+#define X3 $t3
+#define X4 $t4
+#define X5 $t5
+#define X6 $t6
+#define X7 $t7
+#define X8 $t8
+#define X9 $t9
+#define X10 $v1
+#define X11 $s6
+#define X12 $s5
+#define X13 $s4
+#define X14 $s3
+#define X15 $s2
+/* Use regs which are overwritten on exit for Tx so we don't leak clear data. */
+#define T0 $s1
+#define T1 $s0
+#define T(n) T ## n
+#define X(n) X ## n
+
+/* Input arguments */
+#define STATE $a0
+#define OUT $a1
+#define IN $a2
+#define BYTES $a3
+
+/* Output argument */
+/* NONCE[0] is kept in a register and not in memory.
+ * We don't want to touch original value in memory.
+ * Must be incremented every loop iteration.
+ */
+#define NONCE_0 $v0
+
+/* SAVED_X and SAVED_CA are set in the jump table.
+ * Use regs which are overwritten on exit else we don't leak clear data.
+ * They are used to handling the last bytes which are not multiple of 4.
+ */
+#define SAVED_X X15
+#define SAVED_CA $s7
+
+#define IS_UNALIGNED $s7
+
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+#define MSB 0
+#define LSB 3
+#define ROTx rotl
+#define ROTR(n) rotr n, 24
+#define CPU_TO_LE32(n) \
+ wsbh n; \
+ rotr n, 16;
+#else
+#define MSB 3
+#define LSB 0
+#define ROTx rotr
+#define CPU_TO_LE32(n)
+#define ROTR(n)
+#endif
+
+#define FOR_EACH_WORD(x) \
+ x( 0); \
+ x( 1); \
+ x( 2); \
+ x( 3); \
+ x( 4); \
+ x( 5); \
+ x( 6); \
+ x( 7); \
+ x( 8); \
+ x( 9); \
+ x(10); \
+ x(11); \
+ x(12); \
+ x(13); \
+ x(14); \
+ x(15);
+
+#define FOR_EACH_WORD_REV(x) \
+ x(15); \
+ x(14); \
+ x(13); \
+ x(12); \
+ x(11); \
+ x(10); \
+ x( 9); \
+ x( 8); \
+ x( 7); \
+ x( 6); \
+ x( 5); \
+ x( 4); \
+ x( 3); \
+ x( 2); \
+ x( 1); \
+ x( 0);
+
+#define PLUS_ONE_0 1
+#define PLUS_ONE_1 2
+#define PLUS_ONE_2 3
+#define PLUS_ONE_3 4
+#define PLUS_ONE_4 5
+#define PLUS_ONE_5 6
+#define PLUS_ONE_6 7
+#define PLUS_ONE_7 8
+#define PLUS_ONE_8 9
+#define PLUS_ONE_9 10
+#define PLUS_ONE_10 11
+#define PLUS_ONE_11 12
+#define PLUS_ONE_12 13
+#define PLUS_ONE_13 14
+#define PLUS_ONE_14 15
+#define PLUS_ONE_15 16
+#define PLUS_ONE(x) PLUS_ONE_ ## x
+#define _CONCAT3(a,b,c) a ## b ## c
+#define CONCAT3(a,b,c) _CONCAT3(a,b,c)
+
+#define STORE_UNALIGNED(x) \
+CONCAT3(.Lchacha_mips_xor_unaligned_, PLUS_ONE(x), _b: ;) \
+ .if (x != 12); \
+ lw T0, (x*4)(STATE); \
+ .endif; \
+ lwl T1, (x*4)+MSB ## (IN); \
+ lwr T1, (x*4)+LSB ## (IN); \
+ .if (x == 12); \
+ addu X ## x, NONCE_0; \
+ .else; \
+ addu X ## x, T0; \
+ .endif; \
+ CPU_TO_LE32(X ## x); \
+ xor X ## x, T1; \
+ swl X ## x, (x*4)+MSB ## (OUT); \
+ swr X ## x, (x*4)+LSB ## (OUT);
+
+#define STORE_ALIGNED(x) \
+CONCAT3(.Lchacha_mips_xor_aligned_, PLUS_ONE(x), _b: ;) \
+ .if (x != 12); \
+ lw T0, (x*4)(STATE); \
+ .endif; \
+ lw T1, (x*4) ## (IN); \
+ .if (x == 12); \
+ addu X ## x, NONCE_0; \
+ .else; \
+ addu X ## x, T0; \
+ .endif; \
+ CPU_TO_LE32(X ## x); \
+ xor X ## x, T1; \
+ sw X ## x, (x*4) ## (OUT);
+
+/* Jump table macro.
+ * Used for setup and handling the last bytes, which are not multiple of 4.
+ * X15 is free to store Xn
+ * Every jumptable entry must be equal in size.
+ */
+#define JMPTBL_ALIGNED(x) \
+.Lchacha_mips_jmptbl_aligned_ ## x: ; \
+ .set noreorder; \
+ b .Lchacha_mips_xor_aligned_ ## x ## _b; \
+ .if (x == 12); \
+ addu SAVED_X, X ## x, NONCE_0; \
+ .else; \
+ addu SAVED_X, X ## x, SAVED_CA; \
+ .endif; \
+ .set reorder
+
+#define JMPTBL_UNALIGNED(x) \
+.Lchacha_mips_jmptbl_unaligned_ ## x: ; \
+ .set noreorder; \
+ b .Lchacha_mips_xor_unaligned_ ## x ## _b; \
+ .if (x == 12); \
+ addu SAVED_X, X ## x, NONCE_0; \
+ .else; \
+ addu SAVED_X, X ## x, SAVED_CA; \
+ .endif; \
+ .set reorder
+
+#define AXR(A, B, C, D, K, L, M, N, V, W, Y, Z, S) \
+ addu X(A), X(K); \
+ addu X(B), X(L); \
+ addu X(C), X(M); \
+ addu X(D), X(N); \
+ xor X(V), X(A); \
+ xor X(W), X(B); \
+ xor X(Y), X(C); \
+ xor X(Z), X(D); \
+ rotl X(V), S; \
+ rotl X(W), S; \
+ rotl X(Y), S; \
+ rotl X(Z), S;
+
+.text
+.set reorder
+.set noat
+.globl chacha_crypt_arch
+.ent chacha_crypt_arch
+chacha_crypt_arch:
+ .frame $sp, STACK_SIZE, $ra
+
+ /* Load number of rounds */
+ lw $at, 16($sp)
+
+ addiu $sp, -STACK_SIZE
+
+ /* Return bytes = 0. */
+ beqz BYTES, .Lchacha_mips_end
+
+ lw NONCE_0, 48(STATE)
+
+ /* Save s0-s7 */
+ sw $s0, 0($sp)
+ sw $s1, 4($sp)
+ sw $s2, 8($sp)
+ sw $s3, 12($sp)
+ sw $s4, 16($sp)
+ sw $s5, 20($sp)
+ sw $s6, 24($sp)
+ sw $s7, 28($sp)
+
+ /* Test IN or OUT is unaligned.
+ * IS_UNALIGNED = ( IN | OUT ) & 0x00000003
+ */
+ or IS_UNALIGNED, IN, OUT
+ andi IS_UNALIGNED, 0x3
+
+ b .Lchacha_rounds_start
+
+.align 4
+.Loop_chacha_rounds:
+ addiu IN, CHACHA20_BLOCK_SIZE
+ addiu OUT, CHACHA20_BLOCK_SIZE
+ addiu NONCE_0, 1
+
+.Lchacha_rounds_start:
+ lw X0, 0(STATE)
+ lw X1, 4(STATE)
+ lw X2, 8(STATE)
+ lw X3, 12(STATE)
+
+ lw X4, 16(STATE)
+ lw X5, 20(STATE)
+ lw X6, 24(STATE)
+ lw X7, 28(STATE)
+ lw X8, 32(STATE)
+ lw X9, 36(STATE)
+ lw X10, 40(STATE)
+ lw X11, 44(STATE)
+
+ move X12, NONCE_0
+ lw X13, 52(STATE)
+ lw X14, 56(STATE)
+ lw X15, 60(STATE)
+
+.Loop_chacha_xor_rounds:
+ addiu $at, -2
+ AXR( 0, 1, 2, 3, 4, 5, 6, 7, 12,13,14,15, 16);
+ AXR( 8, 9,10,11, 12,13,14,15, 4, 5, 6, 7, 12);
+ AXR( 0, 1, 2, 3, 4, 5, 6, 7, 12,13,14,15, 8);
+ AXR( 8, 9,10,11, 12,13,14,15, 4, 5, 6, 7, 7);
+ AXR( 0, 1, 2, 3, 5, 6, 7, 4, 15,12,13,14, 16);
+ AXR(10,11, 8, 9, 15,12,13,14, 5, 6, 7, 4, 12);
+ AXR( 0, 1, 2, 3, 5, 6, 7, 4, 15,12,13,14, 8);
+ AXR(10,11, 8, 9, 15,12,13,14, 5, 6, 7, 4, 7);
+ bnez $at, .Loop_chacha_xor_rounds
+
+ addiu BYTES, -(CHACHA20_BLOCK_SIZE)
+
+ /* Is data src/dst unaligned? Jump */
+ bnez IS_UNALIGNED, .Loop_chacha_unaligned
+
+ /* Set number rounds here to fill delayslot. */
+ lw $at, (STACK_SIZE+16)($sp)
+
+ /* BYTES < 0, it has no full block. */
+ bltz BYTES, .Lchacha_mips_no_full_block_aligned
+
+ FOR_EACH_WORD_REV(STORE_ALIGNED)
+
+ /* BYTES > 0? Loop again. */
+ bgtz BYTES, .Loop_chacha_rounds
+
+ /* Place this here to fill delay slot */
+ addiu NONCE_0, 1
+
+ /* BYTES < 0? Handle last bytes */
+ bltz BYTES, .Lchacha_mips_xor_bytes
+
+.Lchacha_mips_xor_done:
+ /* Restore used registers */
+ lw $s0, 0($sp)
+ lw $s1, 4($sp)
+ lw $s2, 8($sp)
+ lw $s3, 12($sp)
+ lw $s4, 16($sp)
+ lw $s5, 20($sp)
+ lw $s6, 24($sp)
+ lw $s7, 28($sp)
+
+ /* Write NONCE_0 back to right location in state */
+ sw NONCE_0, 48(STATE)
+
+.Lchacha_mips_end:
+ addiu $sp, STACK_SIZE
+ jr $ra
+
+.Lchacha_mips_no_full_block_aligned:
+ /* Restore the offset on BYTES */
+ addiu BYTES, CHACHA20_BLOCK_SIZE
+
+ /* Get number of full WORDS */
+ andi $at, BYTES, MASK_U32
+
+ /* Load upper half of jump table addr */
+ lui T0, %hi(.Lchacha_mips_jmptbl_aligned_0)
+
+ /* Calculate lower half jump table offset */
+ ins T0, $at, 1, 6
+
+ /* Add offset to STATE */
+ addu T1, STATE, $at
+
+ /* Add lower half jump table addr */
+ addiu T0, %lo(.Lchacha_mips_jmptbl_aligned_0)
+
+ /* Read value from STATE */
+ lw SAVED_CA, 0(T1)
+
+ /* Store remaining bytecounter as negative value */
+ subu BYTES, $at, BYTES
+
+ jr T0
+
+ /* Jump table */
+ FOR_EACH_WORD(JMPTBL_ALIGNED)
+
+
+.Loop_chacha_unaligned:
+ /* Set number rounds here to fill delayslot. */
+ lw $at, (STACK_SIZE+16)($sp)
+
+ /* BYTES > 0, it has no full block. */
+ bltz BYTES, .Lchacha_mips_no_full_block_unaligned
+
+ FOR_EACH_WORD_REV(STORE_UNALIGNED)
+
+ /* BYTES > 0? Loop again. */
+ bgtz BYTES, .Loop_chacha_rounds
+
+ /* Write NONCE_0 back to right location in state */
+ sw NONCE_0, 48(STATE)
+
+ .set noreorder
+ /* Fall through to byte handling */
+ bgez BYTES, .Lchacha_mips_xor_done
+.Lchacha_mips_xor_unaligned_0_b:
+.Lchacha_mips_xor_aligned_0_b:
+ /* Place this here to fill delay slot */
+ addiu NONCE_0, 1
+ .set reorder
+
+.Lchacha_mips_xor_bytes:
+ addu IN, $at
+ addu OUT, $at
+ /* First byte */
+ lbu T1, 0(IN)
+ addiu $at, BYTES, 1
+ CPU_TO_LE32(SAVED_X)
+ ROTR(SAVED_X)
+ xor T1, SAVED_X
+ sb T1, 0(OUT)
+ beqz $at, .Lchacha_mips_xor_done
+ /* Second byte */
+ lbu T1, 1(IN)
+ addiu $at, BYTES, 2
+ ROTx SAVED_X, 8
+ xor T1, SAVED_X
+ sb T1, 1(OUT)
+ beqz $at, .Lchacha_mips_xor_done
+ /* Third byte */
+ lbu T1, 2(IN)
+ ROTx SAVED_X, 8
+ xor T1, SAVED_X
+ sb T1, 2(OUT)
+ b .Lchacha_mips_xor_done
+
+.Lchacha_mips_no_full_block_unaligned:
+ /* Restore the offset on BYTES */
+ addiu BYTES, CHACHA20_BLOCK_SIZE
+
+ /* Get number of full WORDS */
+ andi $at, BYTES, MASK_U32
+
+ /* Load upper half of jump table addr */
+ lui T0, %hi(.Lchacha_mips_jmptbl_unaligned_0)
+
+ /* Calculate lower half jump table offset */
+ ins T0, $at, 1, 6
+
+ /* Add offset to STATE */
+ addu T1, STATE, $at
+
+ /* Add lower half jump table addr */
+ addiu T0, %lo(.Lchacha_mips_jmptbl_unaligned_0)
+
+ /* Read value from STATE */
+ lw SAVED_CA, 0(T1)
+
+ /* Store remaining bytecounter as negative value */
+ subu BYTES, $at, BYTES
+
+ jr T0
+
+ /* Jump table */
+ FOR_EACH_WORD(JMPTBL_UNALIGNED)
+.end chacha_crypt_arch
+.set at
+
+/* Input arguments
+ * STATE $a0
+ * OUT $a1
+ * NROUND $a2
+ */
+
+#undef X12
+#undef X13
+#undef X14
+#undef X15
+
+#define X12 $a3
+#define X13 $at
+#define X14 $v0
+#define X15 STATE
+
+.set noat
+.globl hchacha_block_arch
+.ent hchacha_block_arch
+hchacha_block_arch:
+ .frame $sp, STACK_SIZE, $ra
+
+ addiu $sp, -STACK_SIZE
+
+ /* Save X11(s6) */
+ sw X11, 0($sp)
+
+ lw X0, 0(STATE)
+ lw X1, 4(STATE)
+ lw X2, 8(STATE)
+ lw X3, 12(STATE)
+ lw X4, 16(STATE)
+ lw X5, 20(STATE)
+ lw X6, 24(STATE)
+ lw X7, 28(STATE)
+ lw X8, 32(STATE)
+ lw X9, 36(STATE)
+ lw X10, 40(STATE)
+ lw X11, 44(STATE)
+ lw X12, 48(STATE)
+ lw X13, 52(STATE)
+ lw X14, 56(STATE)
+ lw X15, 60(STATE)
+
+.Loop_hchacha_xor_rounds:
+ addiu $a2, -2
+ AXR( 0, 1, 2, 3, 4, 5, 6, 7, 12,13,14,15, 16);
+ AXR( 8, 9,10,11, 12,13,14,15, 4, 5, 6, 7, 12);
+ AXR( 0, 1, 2, 3, 4, 5, 6, 7, 12,13,14,15, 8);
+ AXR( 8, 9,10,11, 12,13,14,15, 4, 5, 6, 7, 7);
+ AXR( 0, 1, 2, 3, 5, 6, 7, 4, 15,12,13,14, 16);
+ AXR(10,11, 8, 9, 15,12,13,14, 5, 6, 7, 4, 12);
+ AXR( 0, 1, 2, 3, 5, 6, 7, 4, 15,12,13,14, 8);
+ AXR(10,11, 8, 9, 15,12,13,14, 5, 6, 7, 4, 7);
+ bnez $a2, .Loop_hchacha_xor_rounds
+
+ /* Restore used register */
+ lw X11, 0($sp)
+
+ sw X0, 0(OUT)
+ sw X1, 4(OUT)
+ sw X2, 8(OUT)
+ sw X3, 12(OUT)
+ sw X12, 16(OUT)
+ sw X13, 20(OUT)
+ sw X14, 24(OUT)
+ sw X15, 28(OUT)
+
+ addiu $sp, STACK_SIZE
+ jr $ra
+.end hchacha_block_arch
+.set at
diff --git a/arch/mips/crypto/chacha-glue.c b/arch/mips/crypto/chacha-glue.c
new file mode 100644
index 0000000..9089602
--- /dev/null
+++ b/arch/mips/crypto/chacha-glue.c
@@ -0,0 +1,152 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * MIPS accelerated ChaCha and XChaCha stream ciphers,
+ * including ChaCha20 (RFC7539)
+ *
+ * Copyright (C) 2019 Linaro, Ltd. <ard.biesheuvel@linaro.org>
+ */
+
+#include <asm/byteorder.h>
+#include <crypto/algapi.h>
+#include <crypto/internal/chacha.h>
+#include <crypto/internal/skcipher.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+asmlinkage void chacha_crypt_arch(u32 *state, u8 *dst, const u8 *src,
+ unsigned int bytes, int nrounds);
+EXPORT_SYMBOL(chacha_crypt_arch);
+
+asmlinkage void hchacha_block_arch(const u32 *state, u32 *stream, int nrounds);
+EXPORT_SYMBOL(hchacha_block_arch);
+
+void chacha_init_arch(u32 *state, const u32 *key, const u8 *iv)
+{
+ chacha_init_generic(state, key, iv);
+}
+EXPORT_SYMBOL(chacha_init_arch);
+
+static int chacha_mips_stream_xor(struct skcipher_request *req,
+ const struct chacha_ctx *ctx, const u8 *iv)
+{
+ struct skcipher_walk walk;
+ u32 state[16];
+ int err;
+
+ err = skcipher_walk_virt(&walk, req, false);
+
+ chacha_init_generic(state, ctx->key, iv);
+
+ while (walk.nbytes > 0) {
+ unsigned int nbytes = walk.nbytes;
+
+ if (nbytes < walk.total)
+ nbytes = round_down(nbytes, walk.stride);
+
+ chacha_crypt(state, walk.dst.virt.addr, walk.src.virt.addr,
+ nbytes, ctx->nrounds);
+ err = skcipher_walk_done(&walk, walk.nbytes - nbytes);
+ }
+
+ return err;
+}
+
+static int chacha_mips(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+ return chacha_mips_stream_xor(req, ctx, req->iv);
+}
+
+static int xchacha_mips(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct chacha_ctx subctx;
+ u32 state[16];
+ u8 real_iv[16];
+
+ chacha_init_generic(state, ctx->key, req->iv);
+
+ hchacha_block(state, subctx.key, ctx->nrounds);
+ subctx.nrounds = ctx->nrounds;
+
+ memcpy(&real_iv[0], req->iv + 24, 8);
+ memcpy(&real_iv[8], req->iv + 16, 8);
+ return chacha_mips_stream_xor(req, &subctx, real_iv);
+}
+
+static struct skcipher_alg algs[] = {
+ {
+ .base.cra_name = "chacha20",
+ .base.cra_driver_name = "chacha20-mips",
+ .base.cra_priority = 200,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
+ .base.cra_module = THIS_MODULE,
+
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = CHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
+ .setkey = chacha20_setkey,
+ .encrypt = chacha_mips,
+ .decrypt = chacha_mips,
+ }, {
+ .base.cra_name = "xchacha20",
+ .base.cra_driver_name = "xchacha20-mips",
+ .base.cra_priority = 200,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
+ .base.cra_module = THIS_MODULE,
+
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = XCHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
+ .setkey = chacha20_setkey,
+ .encrypt = xchacha_mips,
+ .decrypt = xchacha_mips,
+ }, {
+ .base.cra_name = "xchacha12",
+ .base.cra_driver_name = "xchacha12-mips",
+ .base.cra_priority = 200,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
+ .base.cra_module = THIS_MODULE,
+
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = XCHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
+ .setkey = chacha12_setkey,
+ .encrypt = xchacha_mips,
+ .decrypt = xchacha_mips,
+ }
+};
+
+static int __init chacha_simd_mod_init(void)
+{
+ return IS_REACHABLE(CONFIG_CRYPTO_BLKCIPHER) ?
+ crypto_register_skciphers(algs, ARRAY_SIZE(algs)) : 0;
+}
+
+static void __exit chacha_simd_mod_fini(void)
+{
+ if (IS_REACHABLE(CONFIG_CRYPTO_BLKCIPHER))
+ crypto_unregister_skciphers(algs, ARRAY_SIZE(algs));
+}
+
+module_init(chacha_simd_mod_init);
+module_exit(chacha_simd_mod_fini);
+
+MODULE_DESCRIPTION("ChaCha and XChaCha stream ciphers (MIPS accelerated)");
+MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS_CRYPTO("chacha20");
+MODULE_ALIAS_CRYPTO("chacha20-mips");
+MODULE_ALIAS_CRYPTO("xchacha20");
+MODULE_ALIAS_CRYPTO("xchacha20-mips");
+MODULE_ALIAS_CRYPTO("xchacha12");
+MODULE_ALIAS_CRYPTO("xchacha12-mips");
diff --git a/arch/mips/crypto/poly1305-glue.c b/arch/mips/crypto/poly1305-glue.c
new file mode 100644
index 0000000..fc881b4
--- /dev/null
+++ b/arch/mips/crypto/poly1305-glue.c
@@ -0,0 +1,191 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * OpenSSL/Cryptogams accelerated Poly1305 transform for MIPS
+ *
+ * Copyright (C) 2019 Linaro Ltd. <ard.biesheuvel@linaro.org>
+ */
+
+#include <asm/unaligned.h>
+#include <crypto/algapi.h>
+#include <crypto/internal/hash.h>
+#include <crypto/internal/poly1305.h>
+#include <linux/cpufeature.h>
+#include <linux/crypto.h>
+#include <linux/module.h>
+
+asmlinkage void poly1305_init_mips(void *state, const u8 *key);
+asmlinkage void poly1305_blocks_mips(void *state, const u8 *src, u32 len, u32 hibit);
+asmlinkage void poly1305_emit_mips(void *state, u8 *digest, const u32 *nonce);
+
+void poly1305_init_arch(struct poly1305_desc_ctx *dctx, const u8 *key)
+{
+ poly1305_init_mips(&dctx->h, key);
+ dctx->s[0] = get_unaligned_le32(key + 16);
+ dctx->s[1] = get_unaligned_le32(key + 20);
+ dctx->s[2] = get_unaligned_le32(key + 24);
+ dctx->s[3] = get_unaligned_le32(key + 28);
+ dctx->buflen = 0;
+}
+EXPORT_SYMBOL(poly1305_init_arch);
+
+static int mips_poly1305_init(struct shash_desc *desc)
+{
+ struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
+
+ dctx->buflen = 0;
+ dctx->rset = 0;
+ dctx->sset = false;
+
+ return 0;
+}
+
+static void mips_poly1305_blocks(struct poly1305_desc_ctx *dctx, const u8 *src,
+ u32 len, u32 hibit)
+{
+ if (unlikely(!dctx->sset)) {
+ if (!dctx->rset) {
+ poly1305_init_mips(&dctx->h, src);
+ src += POLY1305_BLOCK_SIZE;
+ len -= POLY1305_BLOCK_SIZE;
+ dctx->rset = 1;
+ }
+ if (len >= POLY1305_BLOCK_SIZE) {
+ dctx->s[0] = get_unaligned_le32(src + 0);
+ dctx->s[1] = get_unaligned_le32(src + 4);
+ dctx->s[2] = get_unaligned_le32(src + 8);
+ dctx->s[3] = get_unaligned_le32(src + 12);
+ src += POLY1305_BLOCK_SIZE;
+ len -= POLY1305_BLOCK_SIZE;
+ dctx->sset = true;
+ }
+ if (len < POLY1305_BLOCK_SIZE)
+ return;
+ }
+
+ len &= ~(POLY1305_BLOCK_SIZE - 1);
+
+ poly1305_blocks_mips(&dctx->h, src, len, hibit);
+}
+
+static int mips_poly1305_update(struct shash_desc *desc, const u8 *src,
+ unsigned int len)
+{
+ struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
+
+ if (unlikely(dctx->buflen)) {
+ u32 bytes = min(len, POLY1305_BLOCK_SIZE - dctx->buflen);
+
+ memcpy(dctx->buf + dctx->buflen, src, bytes);
+ src += bytes;
+ len -= bytes;
+ dctx->buflen += bytes;
+
+ if (dctx->buflen == POLY1305_BLOCK_SIZE) {
+ mips_poly1305_blocks(dctx, dctx->buf, POLY1305_BLOCK_SIZE, 1);
+ dctx->buflen = 0;
+ }
+ }
+
+ if (likely(len >= POLY1305_BLOCK_SIZE)) {
+ mips_poly1305_blocks(dctx, src, len, 1);
+ src += round_down(len, POLY1305_BLOCK_SIZE);
+ len %= POLY1305_BLOCK_SIZE;
+ }
+
+ if (unlikely(len)) {
+ dctx->buflen = len;
+ memcpy(dctx->buf, src, len);
+ }
+ return 0;
+}
+
+void poly1305_update_arch(struct poly1305_desc_ctx *dctx, const u8 *src,
+ unsigned int nbytes)
+{
+ if (unlikely(dctx->buflen)) {
+ u32 bytes = min(nbytes, POLY1305_BLOCK_SIZE - dctx->buflen);
+
+ memcpy(dctx->buf + dctx->buflen, src, bytes);
+ src += bytes;
+ nbytes -= bytes;
+ dctx->buflen += bytes;
+
+ if (dctx->buflen == POLY1305_BLOCK_SIZE) {
+ poly1305_blocks_mips(&dctx->h, dctx->buf,
+ POLY1305_BLOCK_SIZE, 1);
+ dctx->buflen = 0;
+ }
+ }
+
+ if (likely(nbytes >= POLY1305_BLOCK_SIZE)) {
+ unsigned int len = round_down(nbytes, POLY1305_BLOCK_SIZE);
+
+ poly1305_blocks_mips(&dctx->h, src, len, 1);
+ src += len;
+ nbytes %= POLY1305_BLOCK_SIZE;
+ }
+
+ if (unlikely(nbytes)) {
+ dctx->buflen = nbytes;
+ memcpy(dctx->buf, src, nbytes);
+ }
+}
+EXPORT_SYMBOL(poly1305_update_arch);
+
+void poly1305_final_arch(struct poly1305_desc_ctx *dctx, u8 *dst)
+{
+ if (unlikely(dctx->buflen)) {
+ dctx->buf[dctx->buflen++] = 1;
+ memset(dctx->buf + dctx->buflen, 0,
+ POLY1305_BLOCK_SIZE - dctx->buflen);
+ poly1305_blocks_mips(&dctx->h, dctx->buf, POLY1305_BLOCK_SIZE, 0);
+ }
+
+ poly1305_emit_mips(&dctx->h, dst, dctx->s);
+ *dctx = (struct poly1305_desc_ctx){};
+}
+EXPORT_SYMBOL(poly1305_final_arch);
+
+static int mips_poly1305_final(struct shash_desc *desc, u8 *dst)
+{
+ struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
+
+ if (unlikely(!dctx->sset))
+ return -ENOKEY;
+
+ poly1305_final_arch(dctx, dst);
+ return 0;
+}
+
+static struct shash_alg mips_poly1305_alg = {
+ .init = mips_poly1305_init,
+ .update = mips_poly1305_update,
+ .final = mips_poly1305_final,
+ .digestsize = POLY1305_DIGEST_SIZE,
+ .descsize = sizeof(struct poly1305_desc_ctx),
+
+ .base.cra_name = "poly1305",
+ .base.cra_driver_name = "poly1305-mips",
+ .base.cra_priority = 200,
+ .base.cra_blocksize = POLY1305_BLOCK_SIZE,
+ .base.cra_module = THIS_MODULE,
+};
+
+static int __init mips_poly1305_mod_init(void)
+{
+ return IS_REACHABLE(CONFIG_CRYPTO_HASH) ?
+ crypto_register_shash(&mips_poly1305_alg) : 0;
+}
+
+static void __exit mips_poly1305_mod_exit(void)
+{
+ if (IS_REACHABLE(CONFIG_CRYPTO_HASH))
+ crypto_unregister_shash(&mips_poly1305_alg);
+}
+
+module_init(mips_poly1305_mod_init);
+module_exit(mips_poly1305_mod_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS_CRYPTO("poly1305");
+MODULE_ALIAS_CRYPTO("poly1305-mips");
diff --git a/arch/mips/crypto/poly1305-mips.pl b/arch/mips/crypto/poly1305-mips.pl
new file mode 100644
index 0000000..b05bab8
--- /dev/null
+++ b/arch/mips/crypto/poly1305-mips.pl
@@ -0,0 +1,1273 @@
+#!/usr/bin/env perl
+# SPDX-License-Identifier: GPL-1.0+ OR BSD-3-Clause
+#
+# ====================================================================
+# Written by Andy Polyakov, @dot-asm, originally for the OpenSSL
+# project.
+# ====================================================================
+
+# Poly1305 hash for MIPS.
+#
+# May 2016
+#
+# Numbers are cycles per processed byte with poly1305_blocks alone.
+#
+# IALU/gcc
+# R1x000 ~5.5/+130% (big-endian)
+# Octeon II 2.50/+70% (little-endian)
+#
+# March 2019
+#
+# Add 32-bit code path.
+#
+# October 2019
+#
+# Modulo-scheduling reduction allows to omit dependency chain at the
+# end of inner loop and improve performance. Also optimize MIPS32R2
+# code path for MIPS 1004K core. Per René von Dorst's suggestions.
+#
+# IALU/gcc
+# R1x000 ~9.8/? (big-endian)
+# Octeon II 3.65/+140% (little-endian)
+# MT7621/1004K 4.75/? (little-endian)
+#
+######################################################################
+# There is a number of MIPS ABI in use, O32 and N32/64 are most
+# widely used. Then there is a new contender: NUBI. It appears that if
+# one picks the latter, it's possible to arrange code in ABI neutral
+# manner. Therefore let's stick to NUBI register layout:
+#
+($zero,$at,$t0,$t1,$t2)=map("\$$_",(0..2,24,25));
+($a0,$a1,$a2,$a3,$a4,$a5,$a6,$a7)=map("\$$_",(4..11));
+($s0,$s1,$s2,$s3,$s4,$s5,$s6,$s7,$s8,$s9,$s10,$s11)=map("\$$_",(12..23));
+($gp,$tp,$sp,$fp,$ra)=map("\$$_",(3,28..31));
+#
+# The return value is placed in $a0. Following coding rules facilitate
+# interoperability:
+#
+# - never ever touch $tp, "thread pointer", former $gp [o32 can be
+# excluded from the rule, because it's specified volatile];
+# - copy return value to $t0, former $v0 [or to $a0 if you're adapting
+# old code];
+# - on O32 populate $a4-$a7 with 'lw $aN,4*N($sp)' if necessary;
+#
+# For reference here is register layout for N32/64 MIPS ABIs:
+#
+# ($zero,$at,$v0,$v1)=map("\$$_",(0..3));
+# ($a0,$a1,$a2,$a3,$a4,$a5,$a6,$a7)=map("\$$_",(4..11));
+# ($t0,$t1,$t2,$t3,$t8,$t9)=map("\$$_",(12..15,24,25));
+# ($s0,$s1,$s2,$s3,$s4,$s5,$s6,$s7)=map("\$$_",(16..23));
+# ($gp,$sp,$fp,$ra)=map("\$$_",(28..31));
+#
+# <appro@openssl.org>
+#
+######################################################################
+
+$flavour = shift || "64"; # supported flavours are o32,n32,64,nubi32,nubi64
+
+$v0 = ($flavour =~ /nubi/i) ? $a0 : $t0;
+
+if ($flavour =~ /64|n32/i) {{{
+######################################################################
+# 64-bit code path
+#
+
+my ($ctx,$inp,$len,$padbit) = ($a0,$a1,$a2,$a3);
+my ($in0,$in1,$tmp0,$tmp1,$tmp2,$tmp3,$tmp4) = ($a4,$a5,$a6,$a7,$at,$t0,$t1);
+
+$code.=<<___;
+#if (defined(_MIPS_ARCH_MIPS64R3) || defined(_MIPS_ARCH_MIPS64R5) || \\
+ defined(_MIPS_ARCH_MIPS64R6)) \\
+ && !defined(_MIPS_ARCH_MIPS64R2)
+# define _MIPS_ARCH_MIPS64R2
+#endif
+
+#if defined(_MIPS_ARCH_MIPS64R6)
+# define dmultu(rs,rt)
+# define mflo(rd,rs,rt) dmulu rd,rs,rt
+# define mfhi(rd,rs,rt) dmuhu rd,rs,rt
+#else
+# define dmultu(rs,rt) dmultu rs,rt
+# define mflo(rd,rs,rt) mflo rd
+# define mfhi(rd,rs,rt) mfhi rd
+#endif
+
+#ifdef __KERNEL__
+# define poly1305_init poly1305_init_mips
+# define poly1305_blocks poly1305_blocks_mips
+# define poly1305_emit poly1305_emit_mips
+#endif
+
+#if defined(__MIPSEB__) && !defined(MIPSEB)
+# define MIPSEB
+#endif
+
+#ifdef MIPSEB
+# define MSB 0
+# define LSB 7
+#else
+# define MSB 7
+# define LSB 0
+#endif
+
+.text
+.set noat
+.set noreorder
+
+.align 5
+.globl poly1305_init
+.ent poly1305_init
+poly1305_init:
+ .frame $sp,0,$ra
+ .set reorder
+
+ sd $zero,0($ctx)
+ sd $zero,8($ctx)
+ sd $zero,16($ctx)
+
+ beqz $inp,.Lno_key
+
+#if defined(_MIPS_ARCH_MIPS64R6)
+ andi $tmp0,$inp,7 # $inp % 8
+ dsubu $inp,$inp,$tmp0 # align $inp
+ sll $tmp0,$tmp0,3 # byte to bit offset
+ ld $in0,0($inp)
+ ld $in1,8($inp)
+ beqz $tmp0,.Laligned_key
+ ld $tmp2,16($inp)
+
+ subu $tmp1,$zero,$tmp0
+# ifdef MIPSEB
+ dsllv $in0,$in0,$tmp0
+ dsrlv $tmp3,$in1,$tmp1
+ dsllv $in1,$in1,$tmp0
+ dsrlv $tmp2,$tmp2,$tmp1
+# else
+ dsrlv $in0,$in0,$tmp0
+ dsllv $tmp3,$in1,$tmp1
+ dsrlv $in1,$in1,$tmp0
+ dsllv $tmp2,$tmp2,$tmp1
+# endif
+ or $in0,$in0,$tmp3
+ or $in1,$in1,$tmp2
+.Laligned_key:
+#else
+ ldl $in0,0+MSB($inp)
+ ldl $in1,8+MSB($inp)
+ ldr $in0,0+LSB($inp)
+ ldr $in1,8+LSB($inp)
+#endif
+#ifdef MIPSEB
+# if defined(_MIPS_ARCH_MIPS64R2)
+ dsbh $in0,$in0 # byte swap
+ dsbh $in1,$in1
+ dshd $in0,$in0
+ dshd $in1,$in1
+# else
+ ori $tmp0,$zero,0xFF
+ dsll $tmp2,$tmp0,32
+ or $tmp0,$tmp2 # 0x000000FF000000FF
+
+ and $tmp1,$in0,$tmp0 # byte swap
+ and $tmp3,$in1,$tmp0
+ dsrl $tmp2,$in0,24
+ dsrl $tmp4,$in1,24
+ dsll $tmp1,24
+ dsll $tmp3,24
+ and $tmp2,$tmp0
+ and $tmp4,$tmp0
+ dsll $tmp0,8 # 0x0000FF000000FF00
+ or $tmp1,$tmp2
+ or $tmp3,$tmp4
+ and $tmp2,$in0,$tmp0
+ and $tmp4,$in1,$tmp0
+ dsrl $in0,8
+ dsrl $in1,8
+ dsll $tmp2,8
+ dsll $tmp4,8
+ and $in0,$tmp0
+ and $in1,$tmp0
+ or $tmp1,$tmp2
+ or $tmp3,$tmp4
+ or $in0,$tmp1
+ or $in1,$tmp3
+ dsrl $tmp1,$in0,32
+ dsrl $tmp3,$in1,32
+ dsll $in0,32
+ dsll $in1,32
+ or $in0,$tmp1
+ or $in1,$tmp3
+# endif
+#endif
+ li $tmp0,1
+ dsll $tmp0,32 # 0x0000000100000000
+ daddiu $tmp0,-63 # 0x00000000ffffffc1
+ dsll $tmp0,28 # 0x0ffffffc10000000
+ daddiu $tmp0,-1 # 0x0ffffffc0fffffff
+
+ and $in0,$tmp0
+ daddiu $tmp0,-3 # 0x0ffffffc0ffffffc
+ and $in1,$tmp0
+
+ sd $in0,24($ctx)
+ dsrl $tmp0,$in1,2
+ sd $in1,32($ctx)
+ daddu $tmp0,$in1 # s1 = r1 + (r1 >> 2)
+ sd $tmp0,40($ctx)
+
+.Lno_key:
+ li $v0,0 # return 0
+ jr $ra
+.end poly1305_init
+___
+{
+my $SAVED_REGS_MASK = ($flavour =~ /nubi/i) ? "0x0003f000" : "0x00030000";
+
+my ($h0,$h1,$h2,$r0,$r1,$rs1,$d0,$d1,$d2) =
+ ($s0,$s1,$s2,$s3,$s4,$s5,$in0,$in1,$t2);
+my ($shr,$shl) = ($s6,$s7); # used on R6
+
+$code.=<<___;
+.align 5
+.globl poly1305_blocks
+.ent poly1305_blocks
+poly1305_blocks:
+ .set noreorder
+ dsrl $len,4 # number of complete blocks
+ bnez $len,poly1305_blocks_internal
+ nop
+ jr $ra
+ nop
+.end poly1305_blocks
+
+.align 5
+.ent poly1305_blocks_internal
+poly1305_blocks_internal:
+ .set noreorder
+#if defined(_MIPS_ARCH_MIPS64R6)
+ .frame $sp,8*8,$ra
+ .mask $SAVED_REGS_MASK|0x000c0000,-8
+ dsubu $sp,8*8
+ sd $s7,56($sp)
+ sd $s6,48($sp)
+#else
+ .frame $sp,6*8,$ra
+ .mask $SAVED_REGS_MASK,-8
+ dsubu $sp,6*8
+#endif
+ sd $s5,40($sp)
+ sd $s4,32($sp)
+___
+$code.=<<___ if ($flavour =~ /nubi/i); # optimize non-nubi prologue
+ sd $s3,24($sp)
+ sd $s2,16($sp)
+ sd $s1,8($sp)
+ sd $s0,0($sp)
+___
+$code.=<<___;
+ .set reorder
+
+#if defined(_MIPS_ARCH_MIPS64R6)
+ andi $shr,$inp,7
+ dsubu $inp,$inp,$shr # align $inp
+ sll $shr,$shr,3 # byte to bit offset
+ subu $shl,$zero,$shr
+#endif
+
+ ld $h0,0($ctx) # load hash value
+ ld $h1,8($ctx)
+ ld $h2,16($ctx)
+
+ ld $r0,24($ctx) # load key
+ ld $r1,32($ctx)
+ ld $rs1,40($ctx)
+
+ dsll $len,4
+ daddu $len,$inp # end of buffer
+ b .Loop
+
+.align 4
+.Loop:
+#if defined(_MIPS_ARCH_MIPS64R6)
+ ld $in0,0($inp) # load input
+ ld $in1,8($inp)
+ beqz $shr,.Laligned_inp
+
+ ld $tmp2,16($inp)
+# ifdef MIPSEB
+ dsllv $in0,$in0,$shr
+ dsrlv $tmp3,$in1,$shl
+ dsllv $in1,$in1,$shr
+ dsrlv $tmp2,$tmp2,$shl
+# else
+ dsrlv $in0,$in0,$shr
+ dsllv $tmp3,$in1,$shl
+ dsrlv $in1,$in1,$shr
+ dsllv $tmp2,$tmp2,$shl
+# endif
+ or $in0,$in0,$tmp3
+ or $in1,$in1,$tmp2
+.Laligned_inp:
+#else
+ ldl $in0,0+MSB($inp) # load input
+ ldl $in1,8+MSB($inp)
+ ldr $in0,0+LSB($inp)
+ ldr $in1,8+LSB($inp)
+#endif
+ daddiu $inp,16
+#ifdef MIPSEB
+# if defined(_MIPS_ARCH_MIPS64R2)
+ dsbh $in0,$in0 # byte swap
+ dsbh $in1,$in1
+ dshd $in0,$in0
+ dshd $in1,$in1
+# else
+ ori $tmp0,$zero,0xFF
+ dsll $tmp2,$tmp0,32
+ or $tmp0,$tmp2 # 0x000000FF000000FF
+
+ and $tmp1,$in0,$tmp0 # byte swap
+ and $tmp3,$in1,$tmp0
+ dsrl $tmp2,$in0,24
+ dsrl $tmp4,$in1,24
+ dsll $tmp1,24
+ dsll $tmp3,24
+ and $tmp2,$tmp0
+ and $tmp4,$tmp0
+ dsll $tmp0,8 # 0x0000FF000000FF00
+ or $tmp1,$tmp2
+ or $tmp3,$tmp4
+ and $tmp2,$in0,$tmp0
+ and $tmp4,$in1,$tmp0
+ dsrl $in0,8
+ dsrl $in1,8
+ dsll $tmp2,8
+ dsll $tmp4,8
+ and $in0,$tmp0
+ and $in1,$tmp0
+ or $tmp1,$tmp2
+ or $tmp3,$tmp4
+ or $in0,$tmp1
+ or $in1,$tmp3
+ dsrl $tmp1,$in0,32
+ dsrl $tmp3,$in1,32
+ dsll $in0,32
+ dsll $in1,32
+ or $in0,$tmp1
+ or $in1,$tmp3
+# endif
+#endif
+ dsrl $tmp1,$h2,2 # modulo-scheduled reduction
+ andi $h2,$h2,3
+ dsll $tmp0,$tmp1,2
+
+ daddu $d0,$h0,$in0 # accumulate input
+ daddu $tmp1,$tmp0
+ sltu $tmp0,$d0,$h0
+ daddu $d0,$d0,$tmp1 # ... and residue
+ sltu $tmp1,$d0,$tmp1
+ daddu $d1,$h1,$in1
+ daddu $tmp0,$tmp1
+ sltu $tmp1,$d1,$h1
+ daddu $d1,$tmp0
+
+ dmultu ($r0,$d0) # h0*r0
+ daddu $d2,$h2,$padbit
+ sltu $tmp0,$d1,$tmp0
+ mflo ($h0,$r0,$d0)
+ mfhi ($h1,$r0,$d0)
+
+ dmultu ($rs1,$d1) # h1*5*r1
+ daddu $d2,$tmp1
+ daddu $d2,$tmp0
+ mflo ($tmp0,$rs1,$d1)
+ mfhi ($tmp1,$rs1,$d1)
+
+ dmultu ($r1,$d0) # h0*r1
+ mflo ($tmp2,$r1,$d0)
+ mfhi ($h2,$r1,$d0)
+ daddu $h0,$tmp0
+ daddu $h1,$tmp1
+ sltu $tmp0,$h0,$tmp0
+
+ dmultu ($r0,$d1) # h1*r0
+ daddu $h1,$tmp0
+ daddu $h1,$tmp2
+ mflo ($tmp0,$r0,$d1)
+ mfhi ($tmp1,$r0,$d1)
+
+ dmultu ($rs1,$d2) # h2*5*r1
+ sltu $tmp2,$h1,$tmp2
+ daddu $h2,$tmp2
+ mflo ($tmp2,$rs1,$d2)
+
+ dmultu ($r0,$d2) # h2*r0
+ daddu $h1,$tmp0
+ daddu $h2,$tmp1
+ mflo ($tmp3,$r0,$d2)
+ sltu $tmp0,$h1,$tmp0
+ daddu $h2,$tmp0
+
+ daddu $h1,$tmp2
+ sltu $tmp2,$h1,$tmp2
+ daddu $h2,$tmp2
+ daddu $h2,$tmp3
+
+ bne $inp,$len,.Loop
+
+ sd $h0,0($ctx) # store hash value
+ sd $h1,8($ctx)
+ sd $h2,16($ctx)
+
+ .set noreorder
+#if defined(_MIPS_ARCH_MIPS64R6)
+ ld $s7,56($sp)
+ ld $s6,48($sp)
+#endif
+ ld $s5,40($sp) # epilogue
+ ld $s4,32($sp)
+___
+$code.=<<___ if ($flavour =~ /nubi/i); # optimize non-nubi epilogue
+ ld $s3,24($sp)
+ ld $s2,16($sp)
+ ld $s1,8($sp)
+ ld $s0,0($sp)
+___
+$code.=<<___;
+ jr $ra
+#if defined(_MIPS_ARCH_MIPS64R6)
+ daddu $sp,8*8
+#else
+ daddu $sp,6*8
+#endif
+.end poly1305_blocks_internal
+___
+}
+{
+my ($ctx,$mac,$nonce) = ($a0,$a1,$a2);
+
+$code.=<<___;
+.align 5
+.globl poly1305_emit
+.ent poly1305_emit
+poly1305_emit:
+ .frame $sp,0,$ra
+ .set reorder
+
+ ld $tmp2,16($ctx)
+ ld $tmp0,0($ctx)
+ ld $tmp1,8($ctx)
+
+ li $in0,-4 # final reduction
+ dsrl $in1,$tmp2,2
+ and $in0,$tmp2
+ andi $tmp2,$tmp2,3
+ daddu $in0,$in1
+
+ daddu $tmp0,$tmp0,$in0
+ sltu $in1,$tmp0,$in0
+ daddiu $in0,$tmp0,5 # compare to modulus
+ daddu $tmp1,$tmp1,$in1
+ sltiu $tmp3,$in0,5
+ sltu $tmp4,$tmp1,$in1
+ daddu $in1,$tmp1,$tmp3
+ daddu $tmp2,$tmp2,$tmp4
+ sltu $tmp3,$in1,$tmp3
+ daddu $tmp2,$tmp2,$tmp3
+
+ dsrl $tmp2,2 # see if it carried/borrowed
+ dsubu $tmp2,$zero,$tmp2
+
+ xor $in0,$tmp0
+ xor $in1,$tmp1
+ and $in0,$tmp2
+ and $in1,$tmp2
+ xor $in0,$tmp0
+ xor $in1,$tmp1
+
+ lwu $tmp0,0($nonce) # load nonce
+ lwu $tmp1,4($nonce)
+ lwu $tmp2,8($nonce)
+ lwu $tmp3,12($nonce)
+ dsll $tmp1,32
+ dsll $tmp3,32
+ or $tmp0,$tmp1
+ or $tmp2,$tmp3
+
+ daddu $in0,$tmp0 # accumulate nonce
+ daddu $in1,$tmp2
+ sltu $tmp0,$in0,$tmp0
+ daddu $in1,$tmp0
+
+ dsrl $tmp0,$in0,8 # write mac value
+ dsrl $tmp1,$in0,16
+ dsrl $tmp2,$in0,24
+ sb $in0,0($mac)
+ dsrl $tmp3,$in0,32
+ sb $tmp0,1($mac)
+ dsrl $tmp0,$in0,40
+ sb $tmp1,2($mac)
+ dsrl $tmp1,$in0,48
+ sb $tmp2,3($mac)
+ dsrl $tmp2,$in0,56
+ sb $tmp3,4($mac)
+ dsrl $tmp3,$in1,8
+ sb $tmp0,5($mac)
+ dsrl $tmp0,$in1,16
+ sb $tmp1,6($mac)
+ dsrl $tmp1,$in1,24
+ sb $tmp2,7($mac)
+
+ sb $in1,8($mac)
+ dsrl $tmp2,$in1,32
+ sb $tmp3,9($mac)
+ dsrl $tmp3,$in1,40
+ sb $tmp0,10($mac)
+ dsrl $tmp0,$in1,48
+ sb $tmp1,11($mac)
+ dsrl $tmp1,$in1,56
+ sb $tmp2,12($mac)
+ sb $tmp3,13($mac)
+ sb $tmp0,14($mac)
+ sb $tmp1,15($mac)
+
+ jr $ra
+.end poly1305_emit
+.rdata
+.asciiz "Poly1305 for MIPS64, CRYPTOGAMS by \@dot-asm"
+.align 2
+___
+}
+}}} else {{{
+######################################################################
+# 32-bit code path
+#
+
+my ($ctx,$inp,$len,$padbit) = ($a0,$a1,$a2,$a3);
+my ($in0,$in1,$in2,$in3,$tmp0,$tmp1,$tmp2,$tmp3) =
+ ($a4,$a5,$a6,$a7,$at,$t0,$t1,$t2);
+
+$code.=<<___;
+#if (defined(_MIPS_ARCH_MIPS32R3) || defined(_MIPS_ARCH_MIPS32R5) || \\
+ defined(_MIPS_ARCH_MIPS32R6)) \\
+ && !defined(_MIPS_ARCH_MIPS32R2)
+# define _MIPS_ARCH_MIPS32R2
+#endif
+
+#if defined(_MIPS_ARCH_MIPS32R6)
+# define multu(rs,rt)
+# define mflo(rd,rs,rt) mulu rd,rs,rt
+# define mfhi(rd,rs,rt) muhu rd,rs,rt
+#else
+# define multu(rs,rt) multu rs,rt
+# define mflo(rd,rs,rt) mflo rd
+# define mfhi(rd,rs,rt) mfhi rd
+#endif
+
+#ifdef __KERNEL__
+# define poly1305_init poly1305_init_mips
+# define poly1305_blocks poly1305_blocks_mips
+# define poly1305_emit poly1305_emit_mips
+#endif
+
+#if defined(__MIPSEB__) && !defined(MIPSEB)
+# define MIPSEB
+#endif
+
+#ifdef MIPSEB
+# define MSB 0
+# define LSB 3
+#else
+# define MSB 3
+# define LSB 0
+#endif
+
+.text
+.set noat
+.set noreorder
+
+.align 5
+.globl poly1305_init
+.ent poly1305_init
+poly1305_init:
+ .frame $sp,0,$ra
+ .set reorder
+
+ sw $zero,0($ctx)
+ sw $zero,4($ctx)
+ sw $zero,8($ctx)
+ sw $zero,12($ctx)
+ sw $zero,16($ctx)
+
+ beqz $inp,.Lno_key
+
+#if defined(_MIPS_ARCH_MIPS32R6)
+ andi $tmp0,$inp,3 # $inp % 4
+ subu $inp,$inp,$tmp0 # align $inp
+ sll $tmp0,$tmp0,3 # byte to bit offset
+ lw $in0,0($inp)
+ lw $in1,4($inp)
+ lw $in2,8($inp)
+ lw $in3,12($inp)
+ beqz $tmp0,.Laligned_key
+
+ lw $tmp2,16($inp)
+ subu $tmp1,$zero,$tmp0
+# ifdef MIPSEB
+ sllv $in0,$in0,$tmp0
+ srlv $tmp3,$in1,$tmp1
+ sllv $in1,$in1,$tmp0
+ or $in0,$in0,$tmp3
+ srlv $tmp3,$in2,$tmp1
+ sllv $in2,$in2,$tmp0
+ or $in1,$in1,$tmp3
+ srlv $tmp3,$in3,$tmp1
+ sllv $in3,$in3,$tmp0
+ or $in2,$in2,$tmp3
+ srlv $tmp2,$tmp2,$tmp1
+ or $in3,$in3,$tmp2
+# else
+ srlv $in0,$in0,$tmp0
+ sllv $tmp3,$in1,$tmp1
+ srlv $in1,$in1,$tmp0
+ or $in0,$in0,$tmp3
+ sllv $tmp3,$in2,$tmp1
+ srlv $in2,$in2,$tmp0
+ or $in1,$in1,$tmp3
+ sllv $tmp3,$in3,$tmp1
+ srlv $in3,$in3,$tmp0
+ or $in2,$in2,$tmp3
+ sllv $tmp2,$tmp2,$tmp1
+ or $in3,$in3,$tmp2
+# endif
+.Laligned_key:
+#else
+ lwl $in0,0+MSB($inp)
+ lwl $in1,4+MSB($inp)
+ lwl $in2,8+MSB($inp)
+ lwl $in3,12+MSB($inp)
+ lwr $in0,0+LSB($inp)
+ lwr $in1,4+LSB($inp)
+ lwr $in2,8+LSB($inp)
+ lwr $in3,12+LSB($inp)
+#endif
+#ifdef MIPSEB
+# if defined(_MIPS_ARCH_MIPS32R2)
+ wsbh $in0,$in0 # byte swap
+ wsbh $in1,$in1
+ wsbh $in2,$in2
+ wsbh $in3,$in3
+ rotr $in0,$in0,16
+ rotr $in1,$in1,16
+ rotr $in2,$in2,16
+ rotr $in3,$in3,16
+# else
+ srl $tmp0,$in0,24 # byte swap
+ srl $tmp1,$in0,8
+ andi $tmp2,$in0,0xFF00
+ sll $in0,$in0,24
+ andi $tmp1,0xFF00
+ sll $tmp2,$tmp2,8
+ or $in0,$tmp0
+ srl $tmp0,$in1,24
+ or $tmp1,$tmp2
+ srl $tmp2,$in1,8
+ or $in0,$tmp1
+ andi $tmp1,$in1,0xFF00
+ sll $in1,$in1,24
+ andi $tmp2,0xFF00
+ sll $tmp1,$tmp1,8
+ or $in1,$tmp0
+ srl $tmp0,$in2,24
+ or $tmp2,$tmp1
+ srl $tmp1,$in2,8
+ or $in1,$tmp2
+ andi $tmp2,$in2,0xFF00
+ sll $in2,$in2,24
+ andi $tmp1,0xFF00
+ sll $tmp2,$tmp2,8
+ or $in2,$tmp0
+ srl $tmp0,$in3,24
+ or $tmp1,$tmp2
+ srl $tmp2,$in3,8
+ or $in2,$tmp1
+ andi $tmp1,$in3,0xFF00
+ sll $in3,$in3,24
+ andi $tmp2,0xFF00
+ sll $tmp1,$tmp1,8
+ or $in3,$tmp0
+ or $tmp2,$tmp1
+ or $in3,$tmp2
+# endif
+#endif
+ lui $tmp0,0x0fff
+ ori $tmp0,0xffff # 0x0fffffff
+ and $in0,$in0,$tmp0
+ subu $tmp0,3 # 0x0ffffffc
+ and $in1,$in1,$tmp0
+ and $in2,$in2,$tmp0
+ and $in3,$in3,$tmp0
+
+ sw $in0,20($ctx)
+ sw $in1,24($ctx)
+ sw $in2,28($ctx)
+ sw $in3,32($ctx)
+
+ srl $tmp1,$in1,2
+ srl $tmp2,$in2,2
+ srl $tmp3,$in3,2
+ addu $in1,$in1,$tmp1 # s1 = r1 + (r1 >> 2)
+ addu $in2,$in2,$tmp2
+ addu $in3,$in3,$tmp3
+ sw $in1,36($ctx)
+ sw $in2,40($ctx)
+ sw $in3,44($ctx)
+.Lno_key:
+ li $v0,0
+ jr $ra
+.end poly1305_init
+___
+{
+my $SAVED_REGS_MASK = ($flavour =~ /nubi/i) ? "0x00fff000" : "0x00ff0000";
+
+my ($h0,$h1,$h2,$h3,$h4, $r0,$r1,$r2,$r3, $rs1,$rs2,$rs3) =
+ ($s0,$s1,$s2,$s3,$s4, $s5,$s6,$s7,$s8, $s9,$s10,$s11);
+my ($d0,$d1,$d2,$d3) =
+ ($a4,$a5,$a6,$a7);
+my $shr = $t2; # used on R6
+my $one = $t2; # used on R2
+
+$code.=<<___;
+.globl poly1305_blocks
+.align 5
+.ent poly1305_blocks
+poly1305_blocks:
+ .frame $sp,16*4,$ra
+ .mask $SAVED_REGS_MASK,-4
+ .set noreorder
+ subu $sp, $sp,4*12
+ sw $s11,4*11($sp)
+ sw $s10,4*10($sp)
+ sw $s9, 4*9($sp)
+ sw $s8, 4*8($sp)
+ sw $s7, 4*7($sp)
+ sw $s6, 4*6($sp)
+ sw $s5, 4*5($sp)
+ sw $s4, 4*4($sp)
+___
+$code.=<<___ if ($flavour =~ /nubi/i); # optimize non-nubi prologue
+ sw $s3, 4*3($sp)
+ sw $s2, 4*2($sp)
+ sw $s1, 4*1($sp)
+ sw $s0, 4*0($sp)
+___
+$code.=<<___;
+ .set reorder
+
+ srl $len,4 # number of complete blocks
+ li $one,1
+ beqz $len,.Labort
+
+#if defined(_MIPS_ARCH_MIPS32R6)
+ andi $shr,$inp,3
+ subu $inp,$inp,$shr # align $inp
+ sll $shr,$shr,3 # byte to bit offset
+#endif
+
+ lw $h0,0($ctx) # load hash value
+ lw $h1,4($ctx)
+ lw $h2,8($ctx)
+ lw $h3,12($ctx)
+ lw $h4,16($ctx)
+
+ lw $r0,20($ctx) # load key
+ lw $r1,24($ctx)
+ lw $r2,28($ctx)
+ lw $r3,32($ctx)
+ lw $rs1,36($ctx)
+ lw $rs2,40($ctx)
+ lw $rs3,44($ctx)
+
+ sll $len,4
+ addu $len,$len,$inp # end of buffer
+ b .Loop
+
+.align 4
+.Loop:
+#if defined(_MIPS_ARCH_MIPS32R6)
+ lw $d0,0($inp) # load input
+ lw $d1,4($inp)
+ lw $d2,8($inp)
+ lw $d3,12($inp)
+ beqz $shr,.Laligned_inp
+
+ lw $t0,16($inp)
+ subu $t1,$zero,$shr
+# ifdef MIPSEB
+ sllv $d0,$d0,$shr
+ srlv $at,$d1,$t1
+ sllv $d1,$d1,$shr
+ or $d0,$d0,$at
+ srlv $at,$d2,$t1
+ sllv $d2,$d2,$shr
+ or $d1,$d1,$at
+ srlv $at,$d3,$t1
+ sllv $d3,$d3,$shr
+ or $d2,$d2,$at
+ srlv $t0,$t0,$t1
+ or $d3,$d3,$t0
+# else
+ srlv $d0,$d0,$shr
+ sllv $at,$d1,$t1
+ srlv $d1,$d1,$shr
+ or $d0,$d0,$at
+ sllv $at,$d2,$t1
+ srlv $d2,$d2,$shr
+ or $d1,$d1,$at
+ sllv $at,$d3,$t1
+ srlv $d3,$d3,$shr
+ or $d2,$d2,$at
+ sllv $t0,$t0,$t1
+ or $d3,$d3,$t0
+# endif
+.Laligned_inp:
+#else
+ lwl $d0,0+MSB($inp) # load input
+ lwl $d1,4+MSB($inp)
+ lwl $d2,8+MSB($inp)
+ lwl $d3,12+MSB($inp)
+ lwr $d0,0+LSB($inp)
+ lwr $d1,4+LSB($inp)
+ lwr $d2,8+LSB($inp)
+ lwr $d3,12+LSB($inp)
+#endif
+#ifdef MIPSEB
+# if defined(_MIPS_ARCH_MIPS32R2)
+ wsbh $d0,$d0 # byte swap
+ wsbh $d1,$d1
+ wsbh $d2,$d2
+ wsbh $d3,$d3
+ rotr $d0,$d0,16
+ rotr $d1,$d1,16
+ rotr $d2,$d2,16
+ rotr $d3,$d3,16
+# else
+ srl $at,$d0,24 # byte swap
+ srl $t0,$d0,8
+ andi $t1,$d0,0xFF00
+ sll $d0,$d0,24
+ andi $t0,0xFF00
+ sll $t1,$t1,8
+ or $d0,$at
+ srl $at,$d1,24
+ or $t0,$t1
+ srl $t1,$d1,8
+ or $d0,$t0
+ andi $t0,$d1,0xFF00
+ sll $d1,$d1,24
+ andi $t1,0xFF00
+ sll $t0,$t0,8
+ or $d1,$at
+ srl $at,$d2,24
+ or $t1,$t0
+ srl $t0,$d2,8
+ or $d1,$t1
+ andi $t1,$d2,0xFF00
+ sll $d2,$d2,24
+ andi $t0,0xFF00
+ sll $t1,$t1,8
+ or $d2,$at
+ srl $at,$d3,24
+ or $t0,$t1
+ srl $t1,$d3,8
+ or $d2,$t0
+ andi $t0,$d3,0xFF00
+ sll $d3,$d3,24
+ andi $t1,0xFF00
+ sll $t0,$t0,8
+ or $d3,$at
+ or $t1,$t0
+ or $d3,$t1
+# endif
+#endif
+ srl $t0,$h4,2 # modulo-scheduled reduction
+ andi $h4,$h4,3
+ sll $at,$t0,2
+
+ addu $d0,$d0,$h0 # accumulate input
+ addu $t0,$t0,$at
+ sltu $h0,$d0,$h0
+ addu $d0,$d0,$t0 # ... and residue
+ sltu $at,$d0,$t0
+
+ addu $d1,$d1,$h1
+ addu $h0,$h0,$at # carry
+ sltu $h1,$d1,$h1
+ addu $d1,$d1,$h0
+ sltu $h0,$d1,$h0
+
+ addu $d2,$d2,$h2
+ addu $h1,$h1,$h0 # carry
+ sltu $h2,$d2,$h2
+ addu $d2,$d2,$h1
+ sltu $h1,$d2,$h1
+
+ addu $d3,$d3,$h3
+ addu $h2,$h2,$h1 # carry
+ sltu $h3,$d3,$h3
+ addu $d3,$d3,$h2
+
+#if defined(_MIPS_ARCH_MIPS32R2) && !defined(_MIPS_ARCH_MIPS32R6)
+ multu $r0,$d0 # d0*r0
+ sltu $h2,$d3,$h2
+ maddu $rs3,$d1 # d1*s3
+ addu $h3,$h3,$h2 # carry
+ maddu $rs2,$d2 # d2*s2
+ addu $h4,$h4,$padbit
+ maddu $rs1,$d3 # d3*s1
+ addu $h4,$h4,$h3
+ mfhi $at
+ mflo $h0
+
+ multu $r1,$d0 # d0*r1
+ maddu $r0,$d1 # d1*r0
+ maddu $rs3,$d2 # d2*s3
+ maddu $rs2,$d3 # d3*s2
+ maddu $rs1,$h4 # h4*s1
+ maddu $at,$one # hi*1
+ mfhi $at
+ mflo $h1
+
+ multu $r2,$d0 # d0*r2
+ maddu $r1,$d1 # d1*r1
+ maddu $r0,$d2 # d2*r0
+ maddu $rs3,$d3 # d3*s3
+ maddu $rs2,$h4 # h4*s2
+ maddu $at,$one # hi*1
+ mfhi $at
+ mflo $h2
+
+ mul $t0,$r0,$h4 # h4*r0
+
+ multu $r3,$d0 # d0*r3
+ maddu $r2,$d1 # d1*r2
+ maddu $r1,$d2 # d2*r1
+ maddu $r0,$d3 # d3*r0
+ maddu $rs3,$h4 # h4*s3
+ maddu $at,$one # hi*1
+ mfhi $at
+ mflo $h3
+
+ addiu $inp,$inp,16
+
+ addu $h4,$t0,$at
+#else
+ multu ($r0,$d0) # d0*r0
+ mflo ($h0,$r0,$d0)
+ mfhi ($h1,$r0,$d0)
+
+ sltu $h2,$d3,$h2
+ addu $h3,$h3,$h2 # carry
+
+ multu ($rs3,$d1) # d1*s3
+ mflo ($at,$rs3,$d1)
+ mfhi ($t0,$rs3,$d1)
+
+ addu $h4,$h4,$padbit
+ addiu $inp,$inp,16
+ addu $h4,$h4,$h3
+
+ multu ($rs2,$d2) # d2*s2
+ mflo ($a3,$rs2,$d2)
+ mfhi ($t1,$rs2,$d2)
+ addu $h0,$h0,$at
+ addu $h1,$h1,$t0
+ multu ($rs1,$d3) # d3*s1
+ sltu $at,$h0,$at
+ addu $h1,$h1,$at
+
+ mflo ($at,$rs1,$d3)
+ mfhi ($t0,$rs1,$d3)
+ addu $h0,$h0,$a3
+ addu $h1,$h1,$t1
+ multu ($r1,$d0) # d0*r1
+ sltu $a3,$h0,$a3
+ addu $h1,$h1,$a3
+
+
+ mflo ($a3,$r1,$d0)
+ mfhi ($h2,$r1,$d0)
+ addu $h0,$h0,$at
+ addu $h1,$h1,$t0
+ multu ($r0,$d1) # d1*r0
+ sltu $at,$h0,$at
+ addu $h1,$h1,$at
+
+ mflo ($at,$r0,$d1)
+ mfhi ($t0,$r0,$d1)
+ addu $h1,$h1,$a3
+ sltu $a3,$h1,$a3
+ multu ($rs3,$d2) # d2*s3
+ addu $h2,$h2,$a3
+
+ mflo ($a3,$rs3,$d2)
+ mfhi ($t1,$rs3,$d2)
+ addu $h1,$h1,$at
+ addu $h2,$h2,$t0
+ multu ($rs2,$d3) # d3*s2
+ sltu $at,$h1,$at
+ addu $h2,$h2,$at
+
+ mflo ($at,$rs2,$d3)
+ mfhi ($t0,$rs2,$d3)
+ addu $h1,$h1,$a3
+ addu $h2,$h2,$t1
+ multu ($rs1,$h4) # h4*s1
+ sltu $a3,$h1,$a3
+ addu $h2,$h2,$a3
+
+ mflo ($a3,$rs1,$h4)
+ addu $h1,$h1,$at
+ addu $h2,$h2,$t0
+ multu ($r2,$d0) # d0*r2
+ sltu $at,$h1,$at
+ addu $h2,$h2,$at
+
+
+ mflo ($at,$r2,$d0)
+ mfhi ($h3,$r2,$d0)
+ addu $h1,$h1,$a3
+ sltu $a3,$h1,$a3
+ multu ($r1,$d1) # d1*r1
+ addu $h2,$h2,$a3
+
+ mflo ($a3,$r1,$d1)
+ mfhi ($t1,$r1,$d1)
+ addu $h2,$h2,$at
+ sltu $at,$h2,$at
+ multu ($r0,$d2) # d2*r0
+ addu $h3,$h3,$at
+
+ mflo ($at,$r0,$d2)
+ mfhi ($t0,$r0,$d2)
+ addu $h2,$h2,$a3
+ addu $h3,$h3,$t1
+ multu ($rs3,$d3) # d3*s3
+ sltu $a3,$h2,$a3
+ addu $h3,$h3,$a3
+
+ mflo ($a3,$rs3,$d3)
+ mfhi ($t1,$rs3,$d3)
+ addu $h2,$h2,$at
+ addu $h3,$h3,$t0
+ multu ($rs2,$h4) # h4*s2
+ sltu $at,$h2,$at
+ addu $h3,$h3,$at
+
+ mflo ($at,$rs2,$h4)
+ addu $h2,$h2,$a3
+ addu $h3,$h3,$t1
+ multu ($r3,$d0) # d0*r3
+ sltu $a3,$h2,$a3
+ addu $h3,$h3,$a3
+
+
+ mflo ($a3,$r3,$d0)
+ mfhi ($t1,$r3,$d0)
+ addu $h2,$h2,$at
+ sltu $at,$h2,$at
+ multu ($r2,$d1) # d1*r2
+ addu $h3,$h3,$at
+
+ mflo ($at,$r2,$d1)
+ mfhi ($t0,$r2,$d1)
+ addu $h3,$h3,$a3
+ sltu $a3,$h3,$a3
+ multu ($r0,$d3) # d3*r0
+ addu $t1,$t1,$a3
+
+ mflo ($a3,$r0,$d3)
+ mfhi ($d3,$r0,$d3)
+ addu $h3,$h3,$at
+ addu $t1,$t1,$t0
+ multu ($r1,$d2) # d2*r1
+ sltu $at,$h3,$at
+ addu $t1,$t1,$at
+
+ mflo ($at,$r1,$d2)
+ mfhi ($t0,$r1,$d2)
+ addu $h3,$h3,$a3
+ addu $t1,$t1,$d3
+ multu ($rs3,$h4) # h4*s3
+ sltu $a3,$h3,$a3
+ addu $t1,$t1,$a3
+
+ mflo ($a3,$rs3,$h4)
+ addu $h3,$h3,$at
+ addu $t1,$t1,$t0
+ multu ($r0,$h4) # h4*r0
+ sltu $at,$h3,$at
+ addu $t1,$t1,$at
+
+
+ mflo ($h4,$r0,$h4)
+ addu $h3,$h3,$a3
+ sltu $a3,$h3,$a3
+ addu $t1,$t1,$a3
+ addu $h4,$h4,$t1
+
+ li $padbit,1 # if we loop, padbit is 1
+#endif
+ bne $inp,$len,.Loop
+
+ sw $h0,0($ctx) # store hash value
+ sw $h1,4($ctx)
+ sw $h2,8($ctx)
+ sw $h3,12($ctx)
+ sw $h4,16($ctx)
+
+ .set noreorder
+.Labort:
+ lw $s11,4*11($sp)
+ lw $s10,4*10($sp)
+ lw $s9, 4*9($sp)
+ lw $s8, 4*8($sp)
+ lw $s7, 4*7($sp)
+ lw $s6, 4*6($sp)
+ lw $s5, 4*5($sp)
+ lw $s4, 4*4($sp)
+___
+$code.=<<___ if ($flavour =~ /nubi/i); # optimize non-nubi prologue
+ lw $s3, 4*3($sp)
+ lw $s2, 4*2($sp)
+ lw $s1, 4*1($sp)
+ lw $s0, 4*0($sp)
+___
+$code.=<<___;
+ jr $ra
+ addu $sp,$sp,4*12
+.end poly1305_blocks
+___
+}
+{
+my ($ctx,$mac,$nonce,$tmp4) = ($a0,$a1,$a2,$a3);
+
+$code.=<<___;
+.align 5
+.globl poly1305_emit
+.ent poly1305_emit
+poly1305_emit:
+ .frame $sp,0,$ra
+ .set reorder
+
+ lw $tmp4,16($ctx)
+ lw $tmp0,0($ctx)
+ lw $tmp1,4($ctx)
+ lw $tmp2,8($ctx)
+ lw $tmp3,12($ctx)
+
+ li $in0,-4 # final reduction
+ srl $ctx,$tmp4,2
+ and $in0,$in0,$tmp4
+ andi $tmp4,$tmp4,3
+ addu $ctx,$ctx,$in0
+
+ addu $tmp0,$tmp0,$ctx
+ sltu $ctx,$tmp0,$ctx
+ addiu $in0,$tmp0,5 # compare to modulus
+ addu $tmp1,$tmp1,$ctx
+ sltiu $in1,$in0,5
+ sltu $ctx,$tmp1,$ctx
+ addu $in1,$in1,$tmp1
+ addu $tmp2,$tmp2,$ctx
+ sltu $in2,$in1,$tmp1
+ sltu $ctx,$tmp2,$ctx
+ addu $in2,$in2,$tmp2
+ addu $tmp3,$tmp3,$ctx
+ sltu $in3,$in2,$tmp2
+ sltu $ctx,$tmp3,$ctx
+ addu $in3,$in3,$tmp3
+ addu $tmp4,$tmp4,$ctx
+ sltu $ctx,$in3,$tmp3
+ addu $ctx,$tmp4
+
+ srl $ctx,2 # see if it carried/borrowed
+ subu $ctx,$zero,$ctx
+
+ xor $in0,$tmp0
+ xor $in1,$tmp1
+ xor $in2,$tmp2
+ xor $in3,$tmp3
+ and $in0,$ctx
+ and $in1,$ctx
+ and $in2,$ctx
+ and $in3,$ctx
+ xor $in0,$tmp0
+ xor $in1,$tmp1
+ xor $in2,$tmp2
+ xor $in3,$tmp3
+
+ lw $tmp0,0($nonce) # load nonce
+ lw $tmp1,4($nonce)
+ lw $tmp2,8($nonce)
+ lw $tmp3,12($nonce)
+
+ addu $in0,$tmp0 # accumulate nonce
+ sltu $ctx,$in0,$tmp0
+
+ addu $in1,$tmp1
+ sltu $tmp1,$in1,$tmp1
+ addu $in1,$ctx
+ sltu $ctx,$in1,$ctx
+ addu $ctx,$tmp1
+
+ addu $in2,$tmp2
+ sltu $tmp2,$in2,$tmp2
+ addu $in2,$ctx
+ sltu $ctx,$in2,$ctx
+ addu $ctx,$tmp2
+
+ addu $in3,$tmp3
+ addu $in3,$ctx
+
+ srl $tmp0,$in0,8 # write mac value
+ srl $tmp1,$in0,16
+ srl $tmp2,$in0,24
+ sb $in0, 0($mac)
+ sb $tmp0,1($mac)
+ srl $tmp0,$in1,8
+ sb $tmp1,2($mac)
+ srl $tmp1,$in1,16
+ sb $tmp2,3($mac)
+ srl $tmp2,$in1,24
+ sb $in1, 4($mac)
+ sb $tmp0,5($mac)
+ srl $tmp0,$in2,8
+ sb $tmp1,6($mac)
+ srl $tmp1,$in2,16
+ sb $tmp2,7($mac)
+ srl $tmp2,$in2,24
+ sb $in2, 8($mac)
+ sb $tmp0,9($mac)
+ srl $tmp0,$in3,8
+ sb $tmp1,10($mac)
+ srl $tmp1,$in3,16
+ sb $tmp2,11($mac)
+ srl $tmp2,$in3,24
+ sb $in3, 12($mac)
+ sb $tmp0,13($mac)
+ sb $tmp1,14($mac)
+ sb $tmp2,15($mac)
+
+ jr $ra
+.end poly1305_emit
+.rdata
+.asciiz "Poly1305 for MIPS32, CRYPTOGAMS by \@dot-asm"
+.align 2
+___
+}
+}}}
+
+$output=pop and open STDOUT,">$output";
+print $code;
+close STDOUT;
diff --git a/arch/mips/include/asm/clocksource.h b/arch/mips/include/asm/clocksource.h
index 3deb1d0..7ab2c22 100644
--- a/arch/mips/include/asm/clocksource.h
+++ b/arch/mips/include/asm/clocksource.h
@@ -11,19 +11,6 @@
#ifndef __ASM_CLOCKSOURCE_H
#define __ASM_CLOCKSOURCE_H
-#include <linux/types.h>
-
-/* VDSO clocksources. */
-#define VDSO_CLOCK_NONE 0 /* No suitable clocksource. */
-#define VDSO_CLOCK_R4K 1 /* Use the coprocessor 0 count. */
-#define VDSO_CLOCK_GIC 2 /* Use the GIC. */
-
-/**
- * struct arch_clocksource_data - Architecture-specific clocksource information.
- * @vdso_clock_mode: Method the VDSO should use to access the clocksource.
- */
-struct arch_clocksource_data {
- u8 vdso_clock_mode;
-};
+#include <asm/vdso/clocksource.h>
#endif /* __ASM_CLOCKSOURCE_H */
diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h
index c373eb6..d0f7edc 100644
--- a/arch/mips/include/asm/processor.h
+++ b/arch/mips/include/asm/processor.h
@@ -22,6 +22,7 @@
#include <asm/dsemul.h>
#include <asm/mipsregs.h>
#include <asm/prefetch.h>
+#include <asm/vdso/processor.h>
/*
* Return current * instruction pointer ("program counter").
@@ -386,21 +387,6 @@ unsigned long get_wchan(struct task_struct *p);
#define KSTK_ESP(tsk) (task_pt_regs(tsk)->regs[29])
#define KSTK_STATUS(tsk) (task_pt_regs(tsk)->cp0_status)
-#ifdef CONFIG_CPU_LOONGSON3
-/*
- * Loongson-3's SFB (Store-Fill-Buffer) may buffer writes indefinitely when a
- * tight read loop is executed, because reads take priority over writes & the
- * hardware (incorrectly) doesn't ensure that writes will eventually occur.
- *
- * Since spin loops of any kind should have a cpu_relax() in them, force an SFB
- * flush from cpu_relax() such that any pending writes will become visible as
- * expected.
- */
-#define cpu_relax() smp_mb()
-#else
-#define cpu_relax() barrier()
-#endif
-
/*
* Return_address is a replacement for __builtin_return_address(count)
* which on certain architectures cannot reasonably be implemented in GCC
diff --git a/arch/mips/include/asm/vdso.h b/arch/mips/include/asm/vdso.h
index 91bf0c2c..285241d 100644
--- a/arch/mips/include/asm/vdso.h
+++ b/arch/mips/include/asm/vdso.h
@@ -12,6 +12,7 @@
#define __ASM_VDSO_H
#include <linux/mm_types.h>
+#include <vdso/datapage.h>
#include <asm/barrier.h>
@@ -53,84 +54,9 @@ extern struct mips_vdso_image vdso_image_o32;
extern struct mips_vdso_image vdso_image_n32;
#endif
-/**
- * union mips_vdso_data - Data provided by the kernel for the VDSO.
- * @xtime_sec: Current real time (seconds part).
- * @xtime_nsec: Current real time (nanoseconds part, shifted).
- * @wall_to_mono_sec: Wall-to-monotonic offset (seconds part).
- * @wall_to_mono_nsec: Wall-to-monotonic offset (nanoseconds part).
- * @seq_count: Counter to synchronise updates (odd = updating).
- * @cs_shift: Clocksource shift value.
- * @clock_mode: Clocksource to use for time functions.
- * @cs_mult: Clocksource multiplier value.
- * @cs_cycle_last: Clock cycle value at last update.
- * @cs_mask: Clocksource mask value.
- * @tz_minuteswest: Minutes west of Greenwich (from timezone).
- * @tz_dsttime: Type of DST correction (from timezone).
- *
- * This structure contains data needed by functions within the VDSO. It is
- * populated by the kernel and mapped read-only into user memory. The time
- * fields are mirrors of internal data from the timekeeping infrastructure.
- *
- * Note: Care should be taken when modifying as the layout must remain the same
- * for both 64- and 32-bit (for 32-bit userland on 64-bit kernel).
- */
union mips_vdso_data {
- struct {
- u64 xtime_sec;
- u64 xtime_nsec;
- u64 wall_to_mono_sec;
- u64 wall_to_mono_nsec;
- u32 seq_count;
- u32 cs_shift;
- u8 clock_mode;
- u32 cs_mult;
- u64 cs_cycle_last;
- u64 cs_mask;
- s32 tz_minuteswest;
- s32 tz_dsttime;
- };
-
+ struct vdso_data data[CS_BASES];
u8 page[PAGE_SIZE];
};
-static inline u32 vdso_data_read_begin(const union mips_vdso_data *data)
-{
- u32 seq;
-
- while (true) {
- seq = READ_ONCE(data->seq_count);
- if (likely(!(seq & 1))) {
- /* Paired with smp_wmb() in vdso_data_write_*(). */
- smp_rmb();
- return seq;
- }
-
- cpu_relax();
- }
-}
-
-static inline bool vdso_data_read_retry(const union mips_vdso_data *data,
- u32 start_seq)
-{
- /* Paired with smp_wmb() in vdso_data_write_*(). */
- smp_rmb();
- return unlikely(data->seq_count != start_seq);
-}
-
-static inline void vdso_data_write_begin(union mips_vdso_data *data)
-{
- ++data->seq_count;
-
- /* Ensure sequence update is written before other data page values. */
- smp_wmb();
-}
-
-static inline void vdso_data_write_end(union mips_vdso_data *data)
-{
- /* Ensure data values are written before updating sequence again. */
- smp_wmb();
- ++data->seq_count;
-}
-
#endif /* __ASM_VDSO_H */
diff --git a/arch/mips/include/asm/vdso/clocksource.h b/arch/mips/include/asm/vdso/clocksource.h
new file mode 100644
index 0000000..8931462
--- /dev/null
+++ b/arch/mips/include/asm/vdso/clocksource.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef __ASM_VDSOCLOCKSOURCE_H
+#define __ASM_VDSOCLOCKSOURCE_H
+
+#include <linux/types.h>
+
+/* VDSO clocksources. */
+#define VDSO_CLOCK_NONE 0 /* No suitable clocksource. */
+#define VDSO_CLOCK_R4K 1 /* Use the coprocessor 0 count. */
+#define VDSO_CLOCK_GIC 2 /* Use the GIC. */
+
+/**
+ * struct arch_clocksource_data - Architecture-specific clocksource information.
+ * @vdso_clock_mode: Method the VDSO should use to access the clocksource.
+ */
+struct arch_clocksource_data {
+ u8 vdso_clock_mode;
+};
+
+#endif /* __ASM_VDSOCLOCKSOURCE_H */
diff --git a/arch/mips/include/asm/vdso/gettimeofday.h b/arch/mips/include/asm/vdso/gettimeofday.h
new file mode 100644
index 0000000..7e588f1
--- /dev/null
+++ b/arch/mips/include/asm/vdso/gettimeofday.h
@@ -0,0 +1,207 @@
+/*
+ * Copyright (C) 2018 ARM Limited
+ * Copyright (C) 2015 Imagination Technologies
+ * Author: Alex Smith <alex.smith@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+#ifndef __ASM_VDSO_GETTIMEOFDAY_H
+#define __ASM_VDSO_GETTIMEOFDAY_H
+
+#ifndef __ASSEMBLY__
+
+#include <asm/vdso/vdso.h>
+#include <asm/clocksource.h>
+#include <asm/unistd.h>
+#include <asm/vdso.h>
+
+#define VDSO_HAS_CLOCK_GETRES 1
+
+#define __VDSO_USE_SYSCALL ULLONG_MAX
+
+static __always_inline long gettimeofday_fallback(
+ struct __kernel_old_timeval *_tv,
+ struct timezone *_tz)
+{
+ register struct timezone *tz asm("a1") = _tz;
+ register struct __kernel_old_timeval *tv asm("a0") = _tv;
+ register long ret asm("v0");
+ register long nr asm("v0") = __NR_gettimeofday;
+ register long error asm("a3");
+
+ asm volatile(
+ " syscall\n"
+ : "=r" (ret), "=r" (error)
+ : "r" (tv), "r" (tz), "r" (nr)
+ : "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
+ "$14", "$15", "$24", "$25", "hi", "lo", "memory");
+
+ return error ? -ret : ret;
+}
+
+static __always_inline long clock_gettime_fallback(
+ clockid_t _clkid,
+ struct __kernel_timespec *_ts)
+{
+ register struct __kernel_timespec *ts asm("a1") = _ts;
+ register clockid_t clkid asm("a0") = _clkid;
+ register long ret asm("v0");
+#if _MIPS_SIM == _MIPS_SIM_ABI64
+ register long nr asm("v0") = __NR_clock_gettime;
+#else
+ register long nr asm("v0") = __NR_clock_gettime64;
+#endif
+ register long error asm("a3");
+
+ asm volatile(
+ " syscall\n"
+ : "=r" (ret), "=r" (error)
+ : "r" (clkid), "r" (ts), "r" (nr)
+ : "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
+ "$14", "$15", "$24", "$25", "hi", "lo", "memory");
+
+ return error ? -ret : ret;
+}
+
+static __always_inline int clock_getres_fallback(
+ clockid_t _clkid,
+ struct __kernel_timespec *_ts)
+{
+ register struct __kernel_timespec *ts asm("a1") = _ts;
+ register clockid_t clkid asm("a0") = _clkid;
+ register long ret asm("v0");
+#if _MIPS_SIM == _MIPS_SIM_ABI64
+ register long nr asm("v0") = __NR_clock_getres;
+#else
+ register long nr asm("v0") = __NR_clock_getres_time64;
+#endif
+ register long error asm("a3");
+
+ asm volatile(
+ " syscall\n"
+ : "=r" (ret), "=r" (error)
+ : "r" (clkid), "r" (ts), "r" (nr)
+ : "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
+ "$14", "$15", "$24", "$25", "hi", "lo", "memory");
+
+ return error ? -ret : ret;
+}
+
+#if _MIPS_SIM != _MIPS_SIM_ABI64
+
+#define VDSO_HAS_32BIT_FALLBACK 1
+
+static __always_inline long clock_gettime32_fallback(
+ clockid_t _clkid,
+ struct old_timespec32 *_ts)
+{
+ register struct old_timespec32 *ts asm("a1") = _ts;
+ register clockid_t clkid asm("a0") = _clkid;
+ register long ret asm("v0");
+ register long nr asm("v0") = __NR_clock_gettime;
+ register long error asm("a3");
+
+ asm volatile(
+ " syscall\n"
+ : "=r" (ret), "=r" (error)
+ : "r" (clkid), "r" (ts), "r" (nr)
+ : "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
+ "$14", "$15", "$24", "$25", "hi", "lo", "memory");
+
+ return error ? -ret : ret;
+}
+
+static __always_inline int clock_getres32_fallback(
+ clockid_t _clkid,
+ struct old_timespec32 *_ts)
+{
+ register struct old_timespec32 *ts asm("a1") = _ts;
+ register clockid_t clkid asm("a0") = _clkid;
+ register long ret asm("v0");
+ register long nr asm("v0") = __NR_clock_getres;
+ register long error asm("a3");
+
+ asm volatile(
+ " syscall\n"
+ : "=r" (ret), "=r" (error)
+ : "r" (clkid), "r" (ts), "r" (nr)
+ : "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
+ "$14", "$15", "$24", "$25", "hi", "lo", "memory");
+
+ return error ? -ret : ret;
+}
+#endif
+
+#ifdef CONFIG_CSRC_R4K
+
+static __always_inline u64 read_r4k_count(void)
+{
+ unsigned int count;
+
+ __asm__ __volatile__(
+ " .set push\n"
+ " .set mips32r2\n"
+ " rdhwr %0, $2\n"
+ " .set pop\n"
+ : "=r" (count));
+
+ return count;
+}
+
+#endif
+
+#ifdef CONFIG_CLKSRC_MIPS_GIC
+
+static __always_inline u64 read_gic_count(const struct vdso_data *data)
+{
+ void __iomem *gic = get_gic(data);
+ u32 hi, hi2, lo;
+
+ do {
+ hi = __raw_readl(gic + sizeof(lo));
+ lo = __raw_readl(gic);
+ hi2 = __raw_readl(gic + sizeof(lo));
+ } while (hi2 != hi);
+
+ return (((u64)hi) << 32) + lo;
+}
+
+#endif
+
+static __always_inline u64 __arch_get_hw_counter(s32 clock_mode)
+{
+#ifdef CONFIG_CLKSRC_MIPS_GIC
+ const struct vdso_data *data = get_vdso_data();
+#endif
+ u64 cycle_now;
+
+ switch (clock_mode) {
+#ifdef CONFIG_CSRC_R4K
+ case VDSO_CLOCK_R4K:
+ cycle_now = read_r4k_count();
+ break;
+#endif
+#ifdef CONFIG_CLKSRC_MIPS_GIC
+ case VDSO_CLOCK_GIC:
+ cycle_now = read_gic_count(data);
+ break;
+#endif
+ default:
+ cycle_now = __VDSO_USE_SYSCALL;
+ break;
+ }
+
+ return cycle_now;
+}
+
+static __always_inline const struct vdso_data *__arch_get_vdso_data(void)
+{
+ return get_vdso_data();
+}
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* __ASM_VDSO_GETTIMEOFDAY_H */
diff --git a/arch/mips/include/asm/vdso/processor.h b/arch/mips/include/asm/vdso/processor.h
new file mode 100644
index 0000000..511c95d
--- /dev/null
+++ b/arch/mips/include/asm/vdso/processor.h
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020 ARM Ltd.
+ */
+#ifndef __ASM_VDSO_PROCESSOR_H
+#define __ASM_VDSO_PROCESSOR_H
+
+#ifndef __ASSEMBLY__
+
+#ifdef CONFIG_CPU_LOONGSON64
+/*
+ * Loongson-3's SFB (Store-Fill-Buffer) may buffer writes indefinitely when a
+ * tight read loop is executed, because reads take priority over writes & the
+ * hardware (incorrectly) doesn't ensure that writes will eventually occur.
+ *
+ * Since spin loops of any kind should have a cpu_relax() in them, force an SFB
+ * flush from cpu_relax() such that any pending writes will become visible as
+ * expected.
+ */
+#define cpu_relax() smp_mb()
+#else
+#define cpu_relax() barrier()
+#endif
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __ASM_VDSO_PROCESSOR_H */
diff --git a/arch/mips/vdso/vdso.h b/arch/mips/include/asm/vdso/vdso.h
similarity index 90%
rename from arch/mips/vdso/vdso.h
rename to arch/mips/include/asm/vdso/vdso.h
index 921589b..10d59fa 100644
--- a/arch/mips/vdso/vdso.h
+++ b/arch/mips/include/asm/vdso/vdso.h
@@ -13,6 +13,7 @@
#if _MIPS_SIM != _MIPS_SIM_ABI64 && defined(CONFIG_64BIT)
/* Building 32-bit VDSO for the 64-bit kernel. Fake a 32-bit Kconfig. */
+#define BUILD_VDSO32_64
#undef CONFIG_64BIT
#define CONFIG_32BIT 1
#ifndef __ASSEMBLY__
@@ -72,14 +73,14 @@ static inline unsigned long get_vdso_base(void)
return addr;
}
-static inline const union mips_vdso_data *get_vdso_data(void)
+static inline const struct vdso_data *get_vdso_data(void)
{
- return (const union mips_vdso_data *)(get_vdso_base() - PAGE_SIZE);
+ return (const struct vdso_data *)(get_vdso_base() - PAGE_SIZE);
}
#ifdef CONFIG_CLKSRC_MIPS_GIC
-static inline void __iomem *get_gic(const union mips_vdso_data *data)
+static inline void __iomem *get_gic(const struct vdso_data *data)
{
return (void __iomem *)((unsigned long)data & PAGE_MASK) - PAGE_SIZE;
}
diff --git a/arch/mips/include/asm/vdso/vsyscall.h b/arch/mips/include/asm/vdso/vsyscall.h
new file mode 100644
index 0000000..00d41b9
--- /dev/null
+++ b/arch/mips/include/asm/vdso/vsyscall.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_VDSO_VSYSCALL_H
+#define __ASM_VDSO_VSYSCALL_H
+
+#ifndef __ASSEMBLY__
+
+#include <linux/timekeeper_internal.h>
+#include <vdso/datapage.h>
+
+extern struct vdso_data *vdso_data;
+
+/*
+ * Update the vDSO data page to keep in sync with kernel timekeeping.
+ */
+static __always_inline
+struct vdso_data *__mips_get_k_vdso_data(void)
+{
+ return vdso_data;
+}
+#define __arch_get_k_vdso_data __mips_get_k_vdso_data
+
+static __always_inline
+int __mips_get_clock_mode(struct timekeeper *tk)
+{
+ u32 clock_mode = tk->tkr_mono.clock->archdata.vdso_clock_mode;
+
+ return clock_mode;
+}
+#define __arch_get_clock_mode __mips_get_clock_mode
+
+/* The asm-generic header needs to be included after the definitions above */
+#include <asm-generic/vdso/vsyscall.h>
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* __ASM_VDSO_VSYSCALL_H */
diff --git a/arch/mips/kernel/vdso.c b/arch/mips/kernel/vdso.c
index 9df3ebd..157ee80 100644
--- a/arch/mips/kernel/vdso.c
+++ b/arch/mips/kernel/vdso.c
@@ -24,9 +24,12 @@
#include <asm/mips-cps.h>
#include <asm/page.h>
#include <asm/vdso.h>
+#include <vdso/helpers.h>
+#include <vdso/vsyscall.h>
/* Kernel-provided data used by the VDSO. */
-static union mips_vdso_data vdso_data __page_aligned_data;
+static union mips_vdso_data mips_vdso_data __page_aligned_data;
+struct vdso_data *vdso_data = mips_vdso_data.data;
/*
* Mapping for the VDSO data/GIC pages. The real pages are mapped manually, as
@@ -70,34 +73,6 @@ static int __init init_vdso(void)
}
subsys_initcall(init_vdso);
-void update_vsyscall(struct timekeeper *tk)
-{
- vdso_data_write_begin(&vdso_data);
-
- vdso_data.xtime_sec = tk->xtime_sec;
- vdso_data.xtime_nsec = tk->tkr_mono.xtime_nsec;
- vdso_data.wall_to_mono_sec = tk->wall_to_monotonic.tv_sec;
- vdso_data.wall_to_mono_nsec = tk->wall_to_monotonic.tv_nsec;
- vdso_data.cs_shift = tk->tkr_mono.shift;
-
- vdso_data.clock_mode = tk->tkr_mono.clock->archdata.vdso_clock_mode;
- if (vdso_data.clock_mode != VDSO_CLOCK_NONE) {
- vdso_data.cs_mult = tk->tkr_mono.mult;
- vdso_data.cs_cycle_last = tk->tkr_mono.cycle_last;
- vdso_data.cs_mask = tk->tkr_mono.mask;
- }
-
- vdso_data_write_end(&vdso_data);
-}
-
-void update_vsyscall_tz(void)
-{
- if (vdso_data.clock_mode != VDSO_CLOCK_NONE) {
- vdso_data.tz_minuteswest = sys_tz.tz_minuteswest;
- vdso_data.tz_dsttime = sys_tz.tz_dsttime;
- }
-}
-
static unsigned long vdso_base(void)
{
unsigned long base;
@@ -167,7 +142,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
*/
if (cpu_has_dc_aliases) {
base = __ALIGN_MASK(base, shm_align_mask);
- base += ((unsigned long)&vdso_data - gic_size) & shm_align_mask;
+ base += ((unsigned long)vdso_data - gic_size) & shm_align_mask;
}
data_addr = base + gic_size;
@@ -193,7 +168,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
/* Map data page. */
ret = remap_pfn_range(vma, data_addr,
- virt_to_phys(&vdso_data) >> PAGE_SHIFT,
+ virt_to_phys(vdso_data) >> PAGE_SHIFT,
PAGE_SIZE, PAGE_READONLY);
if (ret)
goto out;
diff --git a/arch/mips/kvm/Kconfig b/arch/mips/kvm/Kconfig
index 76b93a9..4d06a29 100644
--- a/arch/mips/kvm/Kconfig
+++ b/arch/mips/kvm/Kconfig
@@ -20,7 +20,6 @@
depends on HAVE_KVM
select EXPORT_UASM
select PREEMPT_NOTIFIERS
- select ANON_INODES
select KVM_GENERIC_DIRTYLOG_READ_PROTECT
select HAVE_KVM_VCPU_ASYNC_IOCTL
select KVM_MMIO
diff --git a/arch/mips/vdso/Makefile b/arch/mips/vdso/Makefile
index a876b165..29a4a72 100644
--- a/arch/mips/vdso/Makefile
+++ b/arch/mips/vdso/Makefile
@@ -1,6 +1,12 @@
# SPDX-License-Identifier: GPL-2.0
# Objects to go into the VDSO.
-obj-vdso-y := elf.o gettimeofday.o sigreturn.o
+
+# Absolute relocation type $(ARCH_REL_TYPE_ABS) needs to be defined before
+# the inclusion of generic Makefile.
+ARCH_REL_TYPE_ABS := R_MIPS_JUMP_SLOT|R_MIPS_GLOB_DAT
+include $(srctree)/lib/vdso/Makefile
+
+obj-vdso-y := elf.o vgettimeofday.o sigreturn.o
# Common compiler flags between ABIs.
ccflags-vdso := \
@@ -13,15 +19,31 @@
$(CLANG_FLAGS) \
-D__VDSO__
+#
+# The -fno-jump-tables flag only prevents the compiler from generating
+# jump tables but does not prevent the compiler from emitting absolute
+# offsets.
cflags-vdso := $(ccflags-vdso) \
$(filter -W%,$(filter-out -Wa$(comma)%,$(KBUILD_CFLAGS))) \
- -O2 -g -fPIC -fno-strict-aliasing -fno-common -fno-builtin -G 0 \
- -DDISABLE_BRANCH_PROFILING \
+ -O3 -g -fPIC -fno-strict-aliasing -fno-common -fno-builtin -G 0 \
+ -fno-stack-protector -fno-jump-tables -DDISABLE_BRANCH_PROFILING \
$(call cc-option, -fno-asynchronous-unwind-tables) \
$(call cc-option, -fno-stack-protector)
aflags-vdso := $(ccflags-vdso) \
-D__ASSEMBLY__ -Wa,-gdwarf-2
+ifneq ($(c-gettimeofday-y),)
+CFLAGS_vgettimeofday.o = -include $(c-gettimeofday-y)
+
+# config-n32-o32-env.c prepares the environment to build a 32bit vDSO
+# library on a 64bit kernel.
+# Note: Needs to be included before than the generic library.
+CFLAGS_vgettimeofday-o32.o = -include $(srctree)/$(src)/config-n32-o32-env.c -include $(c-gettimeofday-y)
+CFLAGS_vgettimeofday-n32.o = -include $(srctree)/$(src)/config-n32-o32-env.c -include $(c-gettimeofday-y)
+endif
+
+CFLAGS_REMOVE_vgettimeofday.o = -pg
+
#
# For the pre-R6 code in arch/mips/vdso/vdso.h for locating
# the base address of VDSO, the linker will emit a R_MIPS_PC32
@@ -35,7 +57,7 @@
ifndef CONFIG_CPU_MIPSR6
ifeq ($(call ld-ifversion, -lt, 225000000, y),y)
$(warning MIPS VDSO requires binutils >= 2.25)
- obj-vdso-y := $(filter-out gettimeofday.o, $(obj-vdso-y))
+ obj-vdso-y := $(filter-out vgettimeofday.o, $(obj-vdso-y))
ccflags-vdso += -DDISABLE_MIPS_VDSO
endif
endif
@@ -48,17 +70,22 @@
$(call cc-ldoption, -Wl$(comma)--hash-style=sysv) \
$(call cc-ldoption, -Wl$(comma)--build-id)
+CFLAGS_REMOVE_vdso.o = -pg
+
GCOV_PROFILE := n
#
# Shared build commands.
#
+quiet_cmd_vdsold_and_vdso_check = LD $@
+ cmd_vdsold_and_vdso_check = $(cmd_vdsold); $(cmd_vdso_check)
+
quiet_cmd_vdsold = VDSO $@
cmd_vdsold = $(CC) $(c_flags) $(VDSO_LDFLAGS) \
-Wl,-T $(filter %.lds,$^) $(filter %.o,$^) -o $@
-quiet_cmd_vdsoas_o_S = AS $@
+quiet_cmd_vdsoas_o_S = AS $@
cmd_vdsoas_o_S = $(CC) $(a_flags) -c -o $@ $<
# Strip rule for the raw .so files
@@ -94,7 +121,7 @@
$(obj)/vdso.lds: KBUILD_CPPFLAGS := $(ccflags-vdso) $(native-abi)
$(obj)/vdso.so.dbg.raw: $(obj)/vdso.lds $(obj-vdso) FORCE
- $(call if_changed,vdsold)
+ $(call if_changed,vdsold_and_vdso_check)
$(obj)/vdso-image.c: $(obj)/vdso.so.dbg.raw $(obj)/vdso.so.raw \
$(obj)/genvdso FORCE
@@ -132,7 +159,7 @@
$(call if_changed_dep,cpp_lds_S)
$(obj)/vdso-o32.so.dbg.raw: $(obj)/vdso-o32.lds $(obj-vdso-o32) FORCE
- $(call if_changed,vdsold)
+ $(call if_changed,vdsold_and_vdso_check)
$(obj)/vdso-o32-image.c: VDSO_NAME := o32
$(obj)/vdso-o32-image.c: $(obj)/vdso-o32.so.dbg.raw $(obj)/vdso-o32.so.raw \
@@ -172,7 +199,7 @@
$(call if_changed_dep,cpp_lds_S)
$(obj)/vdso-n32.so.dbg.raw: $(obj)/vdso-n32.lds $(obj-vdso-n32) FORCE
- $(call if_changed,vdsold)
+ $(call if_changed,vdsold_and_vdso_check)
$(obj)/vdso-n32-image.c: VDSO_NAME := n32
$(obj)/vdso-n32-image.c: $(obj)/vdso-n32.so.dbg.raw $(obj)/vdso-n32.so.raw \
diff --git a/arch/mips/vdso/config-n32-o32-env.c b/arch/mips/vdso/config-n32-o32-env.c
new file mode 100644
index 0000000..68e9aaf
--- /dev/null
+++ b/arch/mips/vdso/config-n32-o32-env.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Configuration file for O32 and N32 binaries.
+ * Note: To be included before lib/vdso/gettimeofday.c
+ */
+#if defined(CONFIG_MIPS32_O32) || defined(CONFIG_MIPS32_N32)
+/*
+ * In case of a 32 bit VDSO for a 64 bit kernel fake a 32 bit kernel
+ * configuration.
+ */
+#undef CONFIG_64BIT
+
+#define BUILD_VDSO32
+#define CONFIG_32BIT 1
+#define CONFIG_GENERIC_ATOMIC64 1
+
+#endif
+
diff --git a/arch/mips/vdso/elf.S b/arch/mips/vdso/elf.S
index 428a191..c0c85d1 100644
--- a/arch/mips/vdso/elf.S
+++ b/arch/mips/vdso/elf.S
@@ -8,7 +8,7 @@
* option) any later version.
*/
-#include "vdso.h"
+#include <asm/vdso/vdso.h>
#include <asm/isa-rev.h>
diff --git a/arch/mips/vdso/sigreturn.S b/arch/mips/vdso/sigreturn.S
index 30c6219..c2b0595 100644
--- a/arch/mips/vdso/sigreturn.S
+++ b/arch/mips/vdso/sigreturn.S
@@ -8,7 +8,7 @@
* option) any later version.
*/
-#include "vdso.h"
+#include <asm/vdso/vdso.h>
#include <uapi/asm/unistd.h>
diff --git a/arch/mips/vdso/vdso.lds.S b/arch/mips/vdso/vdso.lds.S
index 8df7dd5..659fe0c 100644
--- a/arch/mips/vdso/vdso.lds.S
+++ b/arch/mips/vdso/vdso.lds.S
@@ -99,6 +99,10 @@
global:
__vdso_clock_gettime;
__vdso_gettimeofday;
+ __vdso_clock_getres;
+#if _MIPS_SIM != _MIPS_SIM_ABI64
+ __vdso_clock_gettime64;
+#endif
#endif
local: *;
};
diff --git a/arch/mips/vdso/vgettimeofday.c b/arch/mips/vdso/vgettimeofday.c
new file mode 100644
index 0000000..6b83b63
--- /dev/null
+++ b/arch/mips/vdso/vgettimeofday.c
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * MIPS64 and compat userspace implementations of gettimeofday()
+ * and similar.
+ *
+ * Copyright (C) 2015 Imagination Technologies
+ * Copyright (C) 2018 ARM Limited
+ *
+ */
+#include <linux/time.h>
+#include <linux/types.h>
+
+#if _MIPS_SIM != _MIPS_SIM_ABI64
+int __vdso_clock_gettime(clockid_t clock,
+ struct old_timespec32 *ts)
+{
+ return __cvdso_clock_gettime32(clock, ts);
+}
+
+#ifdef CONFIG_MIPS_CLOCK_VSYSCALL
+
+/*
+ * This is behind the ifdef so that we don't provide the symbol when there's no
+ * possibility of there being a usable clocksource, because there's nothing we
+ * can do without it. When libc fails the symbol lookup it should fall back on
+ * the standard syscall path.
+ */
+int __vdso_gettimeofday(struct __kernel_old_timeval *tv,
+ struct timezone *tz)
+{
+ return __cvdso_gettimeofday(tv, tz);
+}
+
+#endif /* CONFIG_MIPS_CLOCK_VSYSCALL */
+
+int __vdso_clock_getres(clockid_t clock_id,
+ struct old_timespec32 *res)
+{
+ return __cvdso_clock_getres_time32(clock_id, res);
+}
+
+int __vdso_clock_gettime64(clockid_t clock,
+ struct __kernel_timespec *ts)
+{
+ return __cvdso_clock_gettime(clock, ts);
+}
+
+#else
+
+int __vdso_clock_gettime(clockid_t clock,
+ struct __kernel_timespec *ts)
+{
+ return __cvdso_clock_gettime(clock, ts);
+}
+
+#ifdef CONFIG_MIPS_CLOCK_VSYSCALL
+
+/*
+ * This is behind the ifdef so that we don't provide the symbol when there's no
+ * possibility of there being a usable clocksource, because there's nothing we
+ * can do without it. When libc fails the symbol lookup it should fall back on
+ * the standard syscall path.
+ */
+int __vdso_gettimeofday(struct __kernel_old_timeval *tv,
+ struct timezone *tz)
+{
+ return __cvdso_gettimeofday(tv, tz);
+}
+
+#endif /* CONFIG_MIPS_CLOCK_VSYSCALL */
+
+int __vdso_clock_getres(clockid_t clock_id,
+ struct __kernel_timespec *res)
+{
+ return __cvdso_clock_getres(clock_id, res);
+}
+
+#endif
diff --git a/arch/nds32/configs/defconfig b/arch/nds32/configs/defconfig
index 2546d87..65ce925 100644
--- a/arch/nds32/configs/defconfig
+++ b/arch/nds32/configs/defconfig
@@ -74,7 +74,7 @@
CONFIG_EXT4_FS=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
-CONFIG_EXT4_ENCRYPTION=y
+CONFIG_FS_ENCRYPTION=y
CONFIG_FUSE_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
diff --git a/arch/nds32/include/asm/vdso_datapage.h b/arch/nds32/include/asm/vdso_datapage.h
index 79db5a1..34d8054 100644
--- a/arch/nds32/include/asm/vdso_datapage.h
+++ b/arch/nds32/include/asm/vdso_datapage.h
@@ -20,6 +20,7 @@ struct vdso_data {
u32 xtime_clock_sec; /* CLOCK_REALTIME - seconds */
u32 cs_mult; /* clocksource multiplier */
u32 cs_shift; /* Cycle to nanosecond divisor (power of two) */
+ u32 hrtimer_res; /* hrtimer resolution */
u64 cs_cycle_last; /* last cycle value */
u64 cs_mask; /* clocksource mask */
diff --git a/arch/nds32/kernel/vdso.c b/arch/nds32/kernel/vdso.c
index 016f158..90bcae6 100644
--- a/arch/nds32/kernel/vdso.c
+++ b/arch/nds32/kernel/vdso.c
@@ -220,6 +220,7 @@ void update_vsyscall(struct timekeeper *tk)
vdso_data->xtime_coarse_sec = tk->xtime_sec;
vdso_data->xtime_coarse_nsec = tk->tkr_mono.xtime_nsec >>
tk->tkr_mono.shift;
+ vdso_data->hrtimer_res = hrtimer_resolution;
vdso_write_end(vdso_data);
}
diff --git a/arch/nds32/kernel/vdso/gettimeofday.c b/arch/nds32/kernel/vdso/gettimeofday.c
index 038721a..b025818 100644
--- a/arch/nds32/kernel/vdso/gettimeofday.c
+++ b/arch/nds32/kernel/vdso/gettimeofday.c
@@ -208,6 +208,8 @@ static notrace int clock_getres_fallback(clockid_t _clk_id,
notrace int __vdso_clock_getres(clockid_t clk_id, struct timespec *res)
{
+ struct vdso_data *vdata = __get_datapage();
+
if (res == NULL)
return 0;
switch (clk_id) {
@@ -215,7 +217,7 @@ notrace int __vdso_clock_getres(clockid_t clk_id, struct timespec *res)
case CLOCK_MONOTONIC:
case CLOCK_MONOTONIC_RAW:
res->tv_sec = 0;
- res->tv_nsec = CLOCK_REALTIME_RES;
+ res->tv_nsec = vdata->hrtimer_res;
break;
case CLOCK_REALTIME_COARSE:
case CLOCK_MONOTONIC_COARSE:
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 8e6d83f..7644b65 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -35,6 +35,7 @@
select GENERIC_STRNCPY_FROM_USER
select SYSCTL_ARCH_UNALIGN_ALLOW
select SYSCTL_EXCEPTION_TRACE
+ select ARCH_DISCARD_MEMBLOCK
select HAVE_MOD_ARCH_SPECIFIC
select VIRT_TO_BUS
select MODULES_USE_ELF_RELA
@@ -311,21 +312,16 @@
def_bool y
depends on 64BIT
-config ARCH_DISCONTIGMEM_ENABLE
+config ARCH_SPARSEMEM_ENABLE
def_bool y
depends on 64BIT
config ARCH_FLATMEM_ENABLE
def_bool y
-config ARCH_DISCONTIGMEM_DEFAULT
+config ARCH_SPARSEMEM_DEFAULT
def_bool y
- depends on ARCH_DISCONTIGMEM_ENABLE
-
-config NODES_SHIFT
- int
- default "3"
- depends on NEED_MULTIPLE_NODES
+ depends on ARCH_SPARSEMEM_ENABLE
source "kernel/Kconfig.hz"
diff --git a/arch/parisc/include/asm/mmzone.h b/arch/parisc/include/asm/mmzone.h
index fafa389..8d39040 100644
--- a/arch/parisc/include/asm/mmzone.h
+++ b/arch/parisc/include/asm/mmzone.h
@@ -2,62 +2,6 @@
#ifndef _PARISC_MMZONE_H
#define _PARISC_MMZONE_H
-#define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */
+#define MAX_PHYSMEM_RANGES 4 /* Fix the size for now (current known max is 3) */
-#ifdef CONFIG_DISCONTIGMEM
-
-extern int npmem_ranges;
-
-struct node_map_data {
- pg_data_t pg_data;
-};
-
-extern struct node_map_data node_data[];
-
-#define NODE_DATA(nid) (&node_data[nid].pg_data)
-
-/* We have these possible memory map layouts:
- * Astro: 0-3.75, 67.75-68, 4-64
- * zx1: 0-1, 257-260, 4-256
- * Stretch (N-class): 0-2, 4-32, 34-xxx
- */
-
-/* Since each 1GB can only belong to one region (node), we can create
- * an index table for pfn to nid lookup; each entry in pfnnid_map
- * represents 1GB, and contains the node that the memory belongs to. */
-
-#define PFNNID_SHIFT (30 - PAGE_SHIFT)
-#define PFNNID_MAP_MAX 512 /* support 512GB */
-extern signed char pfnnid_map[PFNNID_MAP_MAX];
-
-#ifndef CONFIG_64BIT
-#define pfn_is_io(pfn) ((pfn & (0xf0000000UL >> PAGE_SHIFT)) == (0xf0000000UL >> PAGE_SHIFT))
-#else
-/* io can be 0xf0f0f0f0f0xxxxxx or 0xfffffffff0000000 */
-#define pfn_is_io(pfn) ((pfn & (0xf000000000000000UL >> PAGE_SHIFT)) == (0xf000000000000000UL >> PAGE_SHIFT))
-#endif
-
-static inline int pfn_to_nid(unsigned long pfn)
-{
- unsigned int i;
-
- if (unlikely(pfn_is_io(pfn)))
- return 0;
-
- i = pfn >> PFNNID_SHIFT;
- BUG_ON(i >= ARRAY_SIZE(pfnnid_map));
-
- return pfnnid_map[i];
-}
-
-static inline int pfn_valid(int pfn)
-{
- int nid = pfn_to_nid(pfn);
-
- if (nid >= 0)
- return (pfn < node_end_pfn(nid));
- return 0;
-}
-
-#endif
#endif /* _PARISC_MMZONE_H */
diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index af00fe9..936d439 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -145,9 +145,9 @@ extern int npmem_ranges;
#define __pa(x) ((unsigned long)(x)-PAGE_OFFSET)
#define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET))
-#ifndef CONFIG_DISCONTIGMEM
+#ifndef CONFIG_SPARSEMEM
#define pfn_valid(pfn) ((pfn) < max_mapnr)
-#endif /* CONFIG_DISCONTIGMEM */
+#endif
#ifdef CONFIG_HUGETLB_PAGE
#define HPAGE_SHIFT PMD_SHIFT /* fixed for transparent huge pages */
diff --git a/arch/parisc/include/asm/sparsemem.h b/arch/parisc/include/asm/sparsemem.h
new file mode 100644
index 0000000..b5c3a79
--- /dev/null
+++ b/arch/parisc/include/asm/sparsemem.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef ASM_PARISC_SPARSEMEM_H
+#define ASM_PARISC_SPARSEMEM_H
+
+/* We have these possible memory map layouts:
+ * Astro: 0-3.75, 67.75-68, 4-64
+ * zx1: 0-1, 257-260, 4-256
+ * Stretch (N-class): 0-2, 4-32, 34-xxx
+ */
+
+#define MAX_PHYSMEM_BITS 39 /* 512 GB */
+#define SECTION_SIZE_BITS 27 /* 128 MB */
+
+#endif
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index 7baa226..174213b 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -138,12 +138,6 @@ extern void $$dyncall(void);
EXPORT_SYMBOL($$dyncall);
#endif
-#ifdef CONFIG_DISCONTIGMEM
-#include <asm/mmzone.h>
-EXPORT_SYMBOL(node_data);
-EXPORT_SYMBOL(pfnnid_map);
-#endif
-
#ifdef CONFIG_FUNCTION_TRACER
extern void _mcount(void);
EXPORT_SYMBOL(_mcount);
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 10a5266..45ba4ac 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -33,6 +33,7 @@
#include <asm/mmzone.h>
#include <asm/sections.h>
#include <asm/msgbuf.h>
+#include <asm/sparsemem.h>
extern int data_start;
extern void parisc_kernel_start(void); /* Kernel entry point in head.S */
@@ -49,11 +50,6 @@ pmd_t pmd0[PTRS_PER_PMD] __attribute__ ((__section__ (".data..vm0.pmd"), aligned
pgd_t swapper_pg_dir[PTRS_PER_PGD] __attribute__ ((__section__ (".data..vm0.pgd"), aligned(PAGE_SIZE)));
pte_t pg0[PT_INITIAL * PTRS_PER_PTE] __attribute__ ((__section__ (".data..vm0.pte"), aligned(PAGE_SIZE)));
-#ifdef CONFIG_DISCONTIGMEM
-struct node_map_data node_data[MAX_NUMNODES] __read_mostly;
-signed char pfnnid_map[PFNNID_MAP_MAX] __read_mostly;
-#endif
-
static struct resource data_resource = {
.name = "Kernel data",
.flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM,
@@ -77,8 +73,8 @@ static struct resource sysram_resources[MAX_PHYSMEM_RANGES] __read_mostly;
* information retrieved in kernel/inventory.c.
*/
-physmem_range_t pmem_ranges[MAX_PHYSMEM_RANGES] __read_mostly;
-int npmem_ranges __read_mostly;
+physmem_range_t pmem_ranges[MAX_PHYSMEM_RANGES] __initdata;
+int npmem_ranges __initdata;
/*
* get_memblock() allocates pages via memblock.
@@ -111,7 +107,7 @@ static void * __init get_memblock(unsigned long size)
}
#ifdef CONFIG_64BIT
-#define MAX_MEM (~0UL)
+#define MAX_MEM (1UL << MAX_PHYSMEM_BITS)
#else /* !CONFIG_64BIT */
#define MAX_MEM (3584U*1024U*1024U)
#endif /* !CONFIG_64BIT */
@@ -150,7 +146,7 @@ static void __init mem_limit_func(void)
static void __init setup_bootmem(void)
{
unsigned long mem_max;
-#ifndef CONFIG_DISCONTIGMEM
+#ifndef CONFIG_SPARSEMEM
physmem_range_t pmem_holes[MAX_PHYSMEM_RANGES - 1];
int npmem_holes;
#endif
@@ -168,23 +164,20 @@ static void __init setup_bootmem(void)
int j;
for (j = i; j > 0; j--) {
- unsigned long tmp;
+ physmem_range_t tmp;
if (pmem_ranges[j-1].start_pfn <
pmem_ranges[j].start_pfn) {
break;
}
- tmp = pmem_ranges[j-1].start_pfn;
- pmem_ranges[j-1].start_pfn = pmem_ranges[j].start_pfn;
- pmem_ranges[j].start_pfn = tmp;
- tmp = pmem_ranges[j-1].pages;
- pmem_ranges[j-1].pages = pmem_ranges[j].pages;
- pmem_ranges[j].pages = tmp;
+ tmp = pmem_ranges[j-1];
+ pmem_ranges[j-1] = pmem_ranges[j];
+ pmem_ranges[j] = tmp;
}
}
-#ifndef CONFIG_DISCONTIGMEM
+#ifndef CONFIG_SPARSEMEM
/*
* Throw out ranges that are too far apart (controlled by
* MAX_GAP).
@@ -196,7 +189,7 @@ static void __init setup_bootmem(void)
pmem_ranges[i-1].pages) > MAX_GAP) {
npmem_ranges = i;
printk("Large gap in memory detected (%ld pages). "
- "Consider turning on CONFIG_DISCONTIGMEM\n",
+ "Consider turning on CONFIG_SPARSEMEM\n",
pmem_ranges[i].start_pfn -
(pmem_ranges[i-1].start_pfn +
pmem_ranges[i-1].pages));
@@ -261,9 +254,8 @@ static void __init setup_bootmem(void)
printk(KERN_INFO "Total Memory: %ld MB\n",mem_max >> 20);
-#ifndef CONFIG_DISCONTIGMEM
+#ifndef CONFIG_SPARSEMEM
/* Merge the ranges, keeping track of the holes */
-
{
unsigned long end_pfn;
unsigned long hole_pages;
@@ -286,18 +278,6 @@ static void __init setup_bootmem(void)
}
#endif
-#ifdef CONFIG_DISCONTIGMEM
- for (i = 0; i < MAX_PHYSMEM_RANGES; i++) {
- memset(NODE_DATA(i), 0, sizeof(pg_data_t));
- }
- memset(pfnnid_map, 0xff, sizeof(pfnnid_map));
-
- for (i = 0; i < npmem_ranges; i++) {
- node_set_state(i, N_NORMAL_MEMORY);
- node_set_online(i);
- }
-#endif
-
/*
* Initialize and free the full range of memory in each range.
*/
@@ -338,7 +318,7 @@ static void __init setup_bootmem(void)
memblock_reserve(__pa(KERNEL_BINARY_TEXT_START),
(unsigned long)(_end - KERNEL_BINARY_TEXT_START));
-#ifndef CONFIG_DISCONTIGMEM
+#ifndef CONFIG_SPARSEMEM
/* reserve the holes */
@@ -384,6 +364,9 @@ static void __init setup_bootmem(void)
/* Initialize Page Deallocation Table (PDT) and check for bad memory. */
pdc_pdt_init();
+
+ memblock_allow_resize();
+ memblock_dump_all();
}
static int __init parisc_text_address(unsigned long vaddr)
@@ -711,37 +694,46 @@ static void __init gateway_init(void)
PAGE_SIZE, PAGE_GATEWAY, 1);
}
-void __init paging_init(void)
+static void __init parisc_bootmem_free(void)
{
+ unsigned long zones_size[MAX_NR_ZONES] = { 0, };
+ unsigned long holes_size[MAX_NR_ZONES] = { 0, };
+ unsigned long mem_start_pfn = ~0UL, mem_end_pfn = 0, mem_size_pfn = 0;
int i;
+ for (i = 0; i < npmem_ranges; i++) {
+ unsigned long start = pmem_ranges[i].start_pfn;
+ unsigned long size = pmem_ranges[i].pages;
+ unsigned long end = start + size;
+
+ if (mem_start_pfn > start)
+ mem_start_pfn = start;
+ if (mem_end_pfn < end)
+ mem_end_pfn = end;
+ mem_size_pfn += size;
+ }
+
+ zones_size[0] = mem_end_pfn - mem_start_pfn;
+ holes_size[0] = zones_size[0] - mem_size_pfn;
+
+ free_area_init_node(0, zones_size, mem_start_pfn, holes_size);
+}
+
+void __init paging_init(void)
+{
setup_bootmem();
pagetable_init();
gateway_init();
flush_cache_all_local(); /* start with known state */
flush_tlb_all_local(NULL);
- for (i = 0; i < npmem_ranges; i++) {
- unsigned long zones_size[MAX_NR_ZONES] = { 0, };
-
- zones_size[ZONE_NORMAL] = pmem_ranges[i].pages;
-
-#ifdef CONFIG_DISCONTIGMEM
- /* Need to initialize the pfnnid_map before we can initialize
- the zone */
- {
- int j;
- for (j = (pmem_ranges[i].start_pfn >> PFNNID_SHIFT);
- j <= ((pmem_ranges[i].start_pfn + pmem_ranges[i].pages) >> PFNNID_SHIFT);
- j++) {
- pfnnid_map[j] = i;
- }
- }
-#endif
-
- free_area_init_node(i, zones_size,
- pmem_ranges[i].start_pfn, NULL);
- }
+ /*
+ * Mark all memblocks as present for sparsemem using
+ * memory_present() and then initialize sparsemem.
+ */
+ memblocks_present();
+ sparse_init();
+ parisc_bootmem_free();
}
#ifdef CONFIG_PA20
diff --git a/arch/powerpc/kvm/Kconfig b/arch/powerpc/kvm/Kconfig
index 68a0e9d..e058d02 100644
--- a/arch/powerpc/kvm/Kconfig
+++ b/arch/powerpc/kvm/Kconfig
@@ -20,7 +20,6 @@
config KVM
bool
select PREEMPT_NOTIFIERS
- select ANON_INODES
select HAVE_KVM_EVENTFD
select HAVE_KVM_VCPU_ASYNC_IOCTL
select SRCU
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
index 091bdea..904bddc 100644
--- a/arch/powerpc/perf/core-book3s.c
+++ b/arch/powerpc/perf/core-book3s.c
@@ -95,7 +95,7 @@ static inline unsigned long perf_ip_adjust(struct pt_regs *regs)
{
return 0;
}
-static inline void perf_get_data_addr(struct pt_regs *regs, u64 *addrp) { }
+static inline void perf_get_data_addr(struct perf_event *event, struct pt_regs *regs, u64 *addrp) { }
static inline u32 perf_get_misc_flags(struct pt_regs *regs)
{
return 0;
@@ -126,7 +126,7 @@ static unsigned long ebb_switch_in(bool ebb, struct cpu_hw_events *cpuhw)
static inline void power_pmu_bhrb_enable(struct perf_event *event) {}
static inline void power_pmu_bhrb_disable(struct perf_event *event) {}
static void power_pmu_sched_task(struct perf_event_context *ctx, bool sched_in) {}
-static inline void power_pmu_bhrb_read(struct cpu_hw_events *cpuhw) {}
+static inline void power_pmu_bhrb_read(struct perf_event *event, struct cpu_hw_events *cpuhw) {}
static void pmao_restore_workaround(bool ebb) { }
#endif /* CONFIG_PPC32 */
@@ -170,7 +170,7 @@ static inline unsigned long perf_ip_adjust(struct pt_regs *regs)
* pointed to by SIAR; this is indicated by the [POWER6_]MMCRA_SDSYNC, the
* [POWER7P_]MMCRA_SDAR_VALID bit in MMCRA, or the SDAR_VALID bit in SIER.
*/
-static inline void perf_get_data_addr(struct pt_regs *regs, u64 *addrp)
+static inline void perf_get_data_addr(struct perf_event *event, struct pt_regs *regs, u64 *addrp)
{
unsigned long mmcra = regs->dsisr;
bool sdar_valid;
@@ -195,8 +195,7 @@ static inline void perf_get_data_addr(struct pt_regs *regs, u64 *addrp)
if (!(mmcra & MMCRA_SAMPLE_ENABLE) || sdar_valid)
*addrp = mfspr(SPRN_SDAR);
- if (perf_paranoid_kernel() && !capable(CAP_SYS_ADMIN) &&
- is_kernel_addr(mfspr(SPRN_SDAR)))
+ if (is_kernel_addr(mfspr(SPRN_SDAR)) && perf_allow_kernel(&event->attr) != 0)
*addrp = 0;
}
@@ -435,7 +434,7 @@ static __u64 power_pmu_bhrb_to(u64 addr)
}
/* Processing BHRB entries */
-static void power_pmu_bhrb_read(struct cpu_hw_events *cpuhw)
+static void power_pmu_bhrb_read(struct perf_event *event, struct cpu_hw_events *cpuhw)
{
u64 val;
u64 addr;
@@ -463,8 +462,7 @@ static void power_pmu_bhrb_read(struct cpu_hw_events *cpuhw)
* exporting it to userspace (avoid exposure of regions
* where we could have speculative execution)
*/
- if (perf_paranoid_kernel() && !capable(CAP_SYS_ADMIN) &&
- is_kernel_addr(addr))
+ if (is_kernel_addr(addr) && perf_allow_kernel(&event->attr) != 0)
continue;
/* Branches are read most recent first (ie. mfbhrb 0 is
@@ -2089,12 +2087,12 @@ static void record_and_restart(struct perf_event *event, unsigned long val,
if (event->attr.sample_type &
(PERF_SAMPLE_ADDR | PERF_SAMPLE_PHYS_ADDR))
- perf_get_data_addr(regs, &data.addr);
+ perf_get_data_addr(event, regs, &data.addr);
if (event->attr.sample_type & PERF_SAMPLE_BRANCH_STACK) {
struct cpu_hw_events *cpuhw;
cpuhw = this_cpu_ptr(&cpu_hw_events);
- power_pmu_bhrb_read(cpuhw);
+ power_pmu_bhrb_read(event, cpuhw);
data.br_stack = &cpuhw->bhrb_stack;
}
diff --git a/arch/powerpc/platforms/cell/cpufreq_spudemand.c b/arch/powerpc/platforms/cell/cpufreq_spudemand.c
index 882944c..5d8e8b6 100644
--- a/arch/powerpc/platforms/cell/cpufreq_spudemand.c
+++ b/arch/powerpc/platforms/cell/cpufreq_spudemand.c
@@ -49,7 +49,7 @@ static int calc_freq(struct spu_gov_info_struct *info)
cpu = info->policy->cpu;
busy_spus = atomic_read(&cbe_spu_info[cpu_to_node(cpu)].busy_spus);
- CALC_LOAD(info->busy_spus, EXP, busy_spus * FIXED_1);
+ info->busy_spus = calc_load(info->busy_spus, EXP, busy_spus * FIXED_1);
pr_debug("cpu %d: busy_spus=%d, info->busy_spus=%ld\n",
cpu, busy_spus, info->busy_spus);
diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c
index c9ef3c5..9fcccb4 100644
--- a/arch/powerpc/platforms/cell/spufs/sched.c
+++ b/arch/powerpc/platforms/cell/spufs/sched.c
@@ -987,9 +987,9 @@ static void spu_calc_load(void)
unsigned long active_tasks; /* fixed-point */
active_tasks = count_active_contexts() * FIXED_1;
- CALC_LOAD(spu_avenrun[0], EXP_1, active_tasks);
- CALC_LOAD(spu_avenrun[1], EXP_5, active_tasks);
- CALC_LOAD(spu_avenrun[2], EXP_15, active_tasks);
+ spu_avenrun[0] = calc_load(spu_avenrun[0], EXP_1, active_tasks);
+ spu_avenrun[1] = calc_load(spu_avenrun[1], EXP_5, active_tasks);
+ spu_avenrun[2] = calc_load(spu_avenrun[2], EXP_15, active_tasks);
}
static void spusched_wake(struct timer_list *unused)
@@ -1071,9 +1071,6 @@ void spuctx_switch_state(struct spu_context *ctx,
}
}
-#define LOAD_INT(x) ((x) >> FSHIFT)
-#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)
-
static int show_spu_loadavg(struct seq_file *s, void *private)
{
int a, b, c;
diff --git a/arch/s390/appldata/appldata_os.c b/arch/s390/appldata/appldata_os.c
index 433a994..54f3756 100644
--- a/arch/s390/appldata/appldata_os.c
+++ b/arch/s390/appldata/appldata_os.c
@@ -25,10 +25,6 @@
#include "appldata.h"
-
-#define LOAD_INT(x) ((x) >> FSHIFT)
-#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)
-
/*
* OS data
*
diff --git a/arch/s390/configs/debug_defconfig b/arch/s390/configs/debug_defconfig
index 941d8cc..15cdad2 100644
--- a/arch/s390/configs/debug_defconfig
+++ b/arch/s390/configs/debug_defconfig
@@ -492,7 +492,6 @@
CONFIG_EXT4_FS=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
-CONFIG_EXT4_ENCRYPTION=y
CONFIG_JBD2_DEBUG=y
CONFIG_JFS_FS=m
CONFIG_JFS_POSIX_ACL=y
@@ -512,6 +511,7 @@
CONFIG_NILFS2_FS=m
CONFIG_FS_DAX=y
CONFIG_EXPORTFS_BLOCK_OPS=y
+CONFIG_FS_ENCRYPTION=y
CONFIG_FANOTIFY=y
CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
diff --git a/arch/s390/configs/performance_defconfig b/arch/s390/configs/performance_defconfig
index eb6f75f..e670d99 100644
--- a/arch/s390/configs/performance_defconfig
+++ b/arch/s390/configs/performance_defconfig
@@ -489,7 +489,6 @@
CONFIG_EXT4_FS=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
-CONFIG_EXT4_ENCRYPTION=y
CONFIG_JBD2_DEBUG=y
CONFIG_JFS_FS=m
CONFIG_JFS_POSIX_ACL=y
@@ -507,6 +506,7 @@
CONFIG_NILFS2_FS=m
CONFIG_FS_DAX=y
CONFIG_EXPORTFS_BLOCK_OPS=y
+CONFIG_FS_ENCRYPTION=y
CONFIG_FANOTIFY=y
CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index e8bfd29..ca03a26 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -907,6 +907,7 @@ void __init setup_arch(char **cmdline_p)
if (IS_ENABLED(CONFIG_EXPOLINE_AUTO))
nospec_auto_detect();
+ jump_label_init();
parse_early_param();
#ifdef CONFIG_CRASH_DUMP
/* Deactivate elfcorehdr= kernel parameter */
diff --git a/arch/s390/kernel/syscalls/syscall.tbl b/arch/s390/kernel/syscalls/syscall.tbl
index 022fc09..8caf42a 100644
--- a/arch/s390/kernel/syscalls/syscall.tbl
+++ b/arch/s390/kernel/syscalls/syscall.tbl
@@ -391,3 +391,5 @@
381 common kexec_file_load sys_kexec_file_load compat_sys_kexec_file_load
382 common io_pgetevents sys_io_pgetevents compat_sys_io_pgetevents
383 common rseq sys_rseq compat_sys_rseq
+424 common pidfd_send_signal sys_pidfd_send_signal sys_pidfd_send_signal
+434 common pidfd_open sys_pidfd_open sys_pidfd_open
diff --git a/arch/s390/kvm/Kconfig b/arch/s390/kvm/Kconfig
index a3dbd45..600e4fd1 100644
--- a/arch/s390/kvm/Kconfig
+++ b/arch/s390/kvm/Kconfig
@@ -21,7 +21,6 @@
prompt "Kernel-based Virtual Machine (KVM) support"
depends on HAVE_KVM
select PREEMPT_NOTIFIERS
- select ANON_INODES
select HAVE_KVM_CPU_RELAX_INTERCEPT
select HAVE_KVM_VCPU_ASYNC_IOCTL
select HAVE_KVM_EVENTFD
diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index 788c80a..748bd09 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -891,7 +891,7 @@ static int ubd_disk_register(int major, u64 size, int unit,
disk->private_data = &ubd_devs[unit];
disk->queue = ubd_devs[unit].queue;
- device_add_disk(parent, disk, NULL);
+ device_add_disk(parent, disk);
*disk_out = disk;
return 0;
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index d994501..e59494d 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -18,6 +18,7 @@
select HAVE_GENERIC_DMA_COHERENT
select MODULES_USE_ELF_REL
select OLD_SIGACTION
+ select GENERIC_VDSO_32
config X86_64
def_bool y
@@ -46,7 +47,6 @@
#
select ACPI_LEGACY_TABLES_LOOKUP if ACPI
select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI
- select ANON_INODES
select ARCH_CLOCKSOURCE_DATA
select ARCH_DISCARD_MEMBLOCK
select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI
@@ -78,6 +78,7 @@
select ARCH_SUPPORTS_ACPI
select ARCH_SUPPORTS_ATOMIC_RMW
select ARCH_SUPPORTS_NUMA_BALANCING if X86_64
+ select ARCH_SUPPORTS_LTO_CLANG if X86_64
select ARCH_USE_BUILTIN_BSWAP
select ARCH_USE_QUEUED_RWLOCKS
select ARCH_USE_QUEUED_SPINLOCKS
@@ -112,6 +113,7 @@
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
select GENERIC_TIME_VSYSCALL
+ select GENERIC_GETTIMEOFDAY
select HARDLOCKUP_CHECK_TIMESTAMP if X86_64
select HAVE_ACPI_APEI if ACPI
select HAVE_ACPI_APEI_NMI if ACPI
@@ -124,7 +126,7 @@
select HAVE_ARCH_MMAP_RND_BITS if MMU
select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
select HAVE_ARCH_COMPAT_MMAP_BASES if MMU && COMPAT
- select HAVE_ARCH_PREL32_RELOCATIONS
+ select HAVE_ARCH_PREL32_RELOCATIONS if !LTO_CLANG
select HAVE_ARCH_SECCOMP_FILTER
select HAVE_ARCH_THREAD_STRUCT_WHITELIST
select HAVE_ARCH_TRACEHOOK
@@ -185,11 +187,12 @@
select HAVE_REGS_AND_STACK_ACCESS_API
select HAVE_RELIABLE_STACKTRACE if X86_64 && (UNWINDER_FRAME_POINTER || UNWINDER_ORC) && STACK_VALIDATION
select HAVE_STACKPROTECTOR if CC_HAS_SANE_STACKPROTECTOR
- select HAVE_STACK_VALIDATION if X86_64
+ select HAVE_STACK_VALIDATION if X86_64 && !LTO_CLANG
select HAVE_RSEQ
select HAVE_SYSCALL_TRACEPOINTS
select HAVE_UNSTABLE_SCHED_CLOCK
select HAVE_USER_RETURN_NOTIFIER
+ select HAVE_GENERIC_VDSO
select HOTPLUG_SMT if SMP
select IRQ_FORCED_THREADING
select NEED_SG_DMA_LENGTH
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 65a8722..eb84621 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -204,9 +204,10 @@
avx512_instr :=$(call as-instr,vpmovm2b %k1$(comma)%zmm5,-DCONFIG_AS_AVX512=1)
sha1_ni_instr :=$(call as-instr,sha1msg1 %xmm0$(comma)%xmm1,-DCONFIG_AS_SHA1_NI=1)
sha256_ni_instr :=$(call as-instr,sha256msg1 %xmm0$(comma)%xmm1,-DCONFIG_AS_SHA256_NI=1)
+adx_instr := $(call as-instr,adox %r10$(comma)%r10,-DCONFIG_AS_ADX=1)
-KBUILD_AFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr) $(avx_instr) $(avx2_instr) $(avx512_instr) $(sha1_ni_instr) $(sha256_ni_instr)
-KBUILD_CFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr) $(avx_instr) $(avx2_instr) $(avx512_instr) $(sha1_ni_instr) $(sha256_ni_instr)
+KBUILD_AFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr) $(avx_instr) $(avx2_instr) $(avx512_instr) $(sha1_ni_instr) $(sha256_ni_instr) $(adx_instr)
+KBUILD_CFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr) $(avx_instr) $(avx2_instr) $(avx512_instr) $(sha1_ni_instr) $(sha256_ni_instr) $(adx_instr)
KBUILD_LDFLAGS := -m elf_$(UTS_MACHINE)
@@ -219,6 +220,12 @@
KBUILD_LDFLAGS += $(call ld-option, -z max-page-size=0x200000)
endif
+ifdef CONFIG_LTO_CLANG
+ifeq ($(shell test $(CONFIG_LLD_VERSION) -lt 130000; echo $$?),0)
+KBUILD_LDFLAGS += -plugin-opt=-stack-alignment=$(if $(CONFIG_X86_32),4,8)
+endif
+endif
+
# Speed up the build
KBUILD_CFLAGS += -pipe
# Workaround for a gcc prelease that unfortunately was shipped in a suse release
@@ -310,10 +317,6 @@
archprepare: checkbin
checkbin:
-ifndef CONFIG_CC_HAS_ASM_GOTO
- @echo Compiler lacks asm-goto support.
- @exit 1
-endif
ifdef CONFIG_RETPOLINE
ifeq ($(RETPOLINE_CFLAGS),)
@echo "You are building kernel with non-retpoline compiler." >&2
diff --git a/arch/x86/OWNERS b/arch/x86/OWNERS
new file mode 100644
index 0000000..ae2c29f
--- /dev/null
+++ b/arch/x86/OWNERS
@@ -0,0 +1,2 @@
+# include OWNERS from the authoritative android-mainline branch
+include kernel/common:android-mainline:/arch/x86/OWNERS
diff --git a/arch/x86/boot/compressed/string.c b/arch/x86/boot/compressed/string.c
index 19dbbcd..81fc1ea 100644
--- a/arch/x86/boot/compressed/string.c
+++ b/arch/x86/boot/compressed/string.c
@@ -11,7 +11,7 @@
#include "../string.c"
#ifdef CONFIG_X86_32
-static void *__memcpy(void *dest, const void *src, size_t n)
+static void *____memcpy(void *dest, const void *src, size_t n)
{
int d0, d1, d2;
asm volatile(
@@ -25,7 +25,7 @@ static void *__memcpy(void *dest, const void *src, size_t n)
return dest;
}
#else
-static void *__memcpy(void *dest, const void *src, size_t n)
+static void *____memcpy(void *dest, const void *src, size_t n)
{
long d0, d1, d2;
asm volatile(
@@ -56,7 +56,7 @@ void *memmove(void *dest, const void *src, size_t n)
const unsigned char *s = src;
if (d <= s || d - s >= n)
- return __memcpy(dest, src, n);
+ return ____memcpy(dest, src, n);
while (n-- > 0)
d[n] = s[n];
@@ -71,5 +71,11 @@ void *memcpy(void *dest, const void *src, size_t n)
warn("Avoiding potentially unsafe overlapping memcpy()!");
return memmove(dest, src, n);
}
- return __memcpy(dest, src, n);
+ return ____memcpy(dest, src, n);
}
+
+#ifdef CONFIG_KASAN
+extern void *__memset(void *s, int c, size_t n) __alias(memset);
+extern void *__memmove(void *dest, const void *src, size_t n) __alias(memmove);
+extern void *__memcpy(void *dest, const void *src, size_t n) __alias(memcpy);
+#endif
diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig
new file mode 100644
index 0000000..1cb8563
--- /dev/null
+++ b/arch/x86/configs/gki_defconfig
@@ -0,0 +1,457 @@
+CONFIG_KERNEL_LZ4=y
+# CONFIG_USELIB is not set
+CONFIG_AUDIT=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_PREEMPT=y
+CONFIG_IRQ_TIME_ACCOUNTING=y
+CONFIG_TASKSTATS=y
+CONFIG_TASK_XACCT=y
+CONFIG_TASK_IO_ACCOUNTING=y
+CONFIG_PSI=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_IKHEADERS=y
+CONFIG_CGROUPS=y
+CONFIG_MEMCG=y
+CONFIG_MEMCG_SWAP=y
+CONFIG_BLK_CGROUP=y
+CONFIG_CGROUP_SCHED=y
+# CONFIG_FAIR_GROUP_SCHED is not set
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CPUSETS=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_CGROUP_BPF=y
+CONFIG_NAMESPACES=y
+# CONFIG_PID_NS is not set
+CONFIG_SCHED_TUNE=y
+CONFIG_BLK_DEV_INITRD=y
+# CONFIG_RD_BZIP2 is not set
+# CONFIG_RD_LZMA is not set
+# CONFIG_RD_XZ is not set
+# CONFIG_RD_LZO is not set
+# CONFIG_SYSFS_SYSCALL is not set
+# CONFIG_FHANDLE is not set
+CONFIG_KALLSYMS_ALL=y
+CONFIG_BPF_SYSCALL=y
+CONFIG_BPF_JIT_ALWAYS_ON=y
+# CONFIG_RSEQ is not set
+CONFIG_EMBEDDED=y
+# CONFIG_COMPAT_BRK is not set
+# CONFIG_SLAB_MERGE_DEFAULT is not set
+CONFIG_PROFILING=y
+CONFIG_SMP=y
+CONFIG_X86_X2APIC=y
+CONFIG_HYPERVISOR_GUEST=y
+CONFIG_PARAVIRT=y
+CONFIG_NR_CPUS=32
+CONFIG_EFI=y
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE="cgroup_disable=pressure"
+CONFIG_PM_WAKELOCKS=y
+CONFIG_PM_WAKELOCKS_LIMIT=0
+# CONFIG_PM_WAKELOCKS_GC is not set
+CONFIG_CPU_FREQ_STAT=y
+CONFIG_CPU_FREQ_TIMES=y
+CONFIG_CPU_FREQ_GOV_POWERSAVE=y
+CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
+CONFIG_PCI_MSI=y
+CONFIG_IA32_EMULATION=y
+CONFIG_JUMP_LABEL=y
+CONFIG_LTO_CLANG=y
+CONFIG_CFI_CLANG=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODVERSIONS=y
+CONFIG_BLK_INLINE_ENCRYPTION=y
+CONFIG_BLK_INLINE_ENCRYPTION_FALLBACK=y
+CONFIG_GKI_HACKS_TO_FIX=y
+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
+CONFIG_BINFMT_MISC=y
+CONFIG_CLEANCACHE=y
+CONFIG_ZSMALLOC=y
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_XFRM_USER=y
+CONFIG_XFRM_INTERFACE=y
+CONFIG_XFRM_MIGRATE=y
+CONFIG_XFRM_STATISTICS=y
+CONFIG_NET_KEY=y
+CONFIG_XDP_SOCKETS=y
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_ADVANCED_ROUTER=y
+CONFIG_IP_MULTIPLE_TABLES=y
+CONFIG_NET_IPIP=y
+CONFIG_NET_IPGRE_DEMUX=y
+CONFIG_NET_IPGRE=y
+CONFIG_NET_IPVTI=y
+CONFIG_INET_ESP=y
+# CONFIG_INET_XFRM_MODE_BEET is not set
+CONFIG_INET_UDP_DIAG=y
+CONFIG_INET_DIAG_DESTROY=y
+CONFIG_IPV6_ROUTER_PREF=y
+CONFIG_IPV6_ROUTE_INFO=y
+CONFIG_IPV6_OPTIMISTIC_DAD=y
+CONFIG_INET6_ESP=y
+CONFIG_INET6_IPCOMP=y
+CONFIG_IPV6_MIP6=y
+CONFIG_IPV6_VTI=y
+CONFIG_IPV6_GRE=y
+CONFIG_IPV6_MULTIPLE_TABLES=y
+CONFIG_IPV6_SUBTREES=y
+CONFIG_NETFILTER=y
+CONFIG_NF_CONNTRACK=y
+CONFIG_NF_CONNTRACK_SECMARK=y
+CONFIG_NF_CONNTRACK_EVENTS=y
+CONFIG_NF_CONNTRACK_AMANDA=y
+CONFIG_NF_CONNTRACK_FTP=y
+CONFIG_NF_CONNTRACK_H323=y
+CONFIG_NF_CONNTRACK_IRC=y
+CONFIG_NF_CONNTRACK_NETBIOS_NS=y
+CONFIG_NF_CONNTRACK_PPTP=y
+CONFIG_NF_CONNTRACK_SANE=y
+CONFIG_NF_CONNTRACK_TFTP=y
+CONFIG_NF_CT_NETLINK=y
+CONFIG_NETFILTER_XT_TARGET_CLASSIFY=y
+CONFIG_NETFILTER_XT_TARGET_CONNMARK=y
+CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=y
+CONFIG_NETFILTER_XT_TARGET_CT=y
+CONFIG_NETFILTER_XT_TARGET_IDLETIMER=y
+CONFIG_NETFILTER_XT_TARGET_MARK=y
+CONFIG_NETFILTER_XT_TARGET_NFLOG=y
+CONFIG_NETFILTER_XT_TARGET_NFQUEUE=y
+CONFIG_NETFILTER_XT_TARGET_TPROXY=y
+CONFIG_NETFILTER_XT_TARGET_TRACE=y
+CONFIG_NETFILTER_XT_TARGET_SECMARK=y
+CONFIG_NETFILTER_XT_TARGET_TCPMSS=y
+CONFIG_NETFILTER_XT_MATCH_BPF=y
+CONFIG_NETFILTER_XT_MATCH_COMMENT=y
+CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=y
+CONFIG_NETFILTER_XT_MATCH_CONNMARK=y
+CONFIG_NETFILTER_XT_MATCH_CONNTRACK=y
+CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=y
+CONFIG_NETFILTER_XT_MATCH_HELPER=y
+CONFIG_NETFILTER_XT_MATCH_IPRANGE=y
+CONFIG_NETFILTER_XT_MATCH_LENGTH=y
+CONFIG_NETFILTER_XT_MATCH_LIMIT=y
+CONFIG_NETFILTER_XT_MATCH_MAC=y
+CONFIG_NETFILTER_XT_MATCH_MARK=y
+CONFIG_NETFILTER_XT_MATCH_OWNER=y
+CONFIG_NETFILTER_XT_MATCH_POLICY=y
+CONFIG_NETFILTER_XT_MATCH_PKTTYPE=y
+CONFIG_NETFILTER_XT_MATCH_QUOTA=y
+CONFIG_NETFILTER_XT_MATCH_QUOTA2=y
+CONFIG_NETFILTER_XT_MATCH_QUOTA2_LOG=y
+CONFIG_NETFILTER_XT_MATCH_SOCKET=y
+CONFIG_NETFILTER_XT_MATCH_STATE=y
+CONFIG_NETFILTER_XT_MATCH_STATISTIC=y
+CONFIG_NETFILTER_XT_MATCH_STRING=y
+CONFIG_NETFILTER_XT_MATCH_TIME=y
+CONFIG_NETFILTER_XT_MATCH_U32=y
+CONFIG_IP_NF_IPTABLES=y
+CONFIG_IP_NF_MATCH_ECN=y
+CONFIG_IP_NF_MATCH_TTL=y
+CONFIG_IP_NF_FILTER=y
+CONFIG_IP_NF_TARGET_REJECT=y
+CONFIG_IP_NF_NAT=y
+CONFIG_IP_NF_TARGET_MASQUERADE=y
+CONFIG_IP_NF_TARGET_NETMAP=y
+CONFIG_IP_NF_TARGET_REDIRECT=y
+CONFIG_IP_NF_MANGLE=y
+CONFIG_IP_NF_RAW=y
+CONFIG_IP_NF_SECURITY=y
+CONFIG_IP_NF_ARPTABLES=y
+CONFIG_IP_NF_ARPFILTER=y
+CONFIG_IP_NF_ARP_MANGLE=y
+CONFIG_IP6_NF_IPTABLES=y
+CONFIG_IP6_NF_MATCH_RPFILTER=y
+CONFIG_IP6_NF_FILTER=y
+CONFIG_IP6_NF_TARGET_REJECT=y
+CONFIG_IP6_NF_MANGLE=y
+CONFIG_IP6_NF_RAW=y
+CONFIG_TIPC=y
+CONFIG_L2TP=y
+CONFIG_BRIDGE=y
+CONFIG_NET_SCHED=y
+CONFIG_NET_SCH_HTB=y
+CONFIG_NET_SCH_INGRESS=y
+CONFIG_NET_CLS_U32=y
+CONFIG_NET_CLS_BPF=y
+CONFIG_NET_EMATCH=y
+CONFIG_NET_EMATCH_U32=y
+CONFIG_NET_CLS_ACT=y
+CONFIG_BPF_JIT=y
+CONFIG_BT=y
+CONFIG_CFG80211=y
+# CONFIG_CFG80211_DEFAULT_PS is not set
+# CONFIG_CFG80211_CRDA_SUPPORT is not set
+CONFIG_MAC80211=y
+CONFIG_RFKILL=y
+# CONFIG_UEVENT_HELPER is not set
+CONFIG_FW_LOADER_USER_HELPER=y
+CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y
+# CONFIG_FW_CACHE is not set
+# CONFIG_ALLOW_DEV_COREDUMP is not set
+CONFIG_GNSS=y
+CONFIG_OF=y
+CONFIG_ZRAM=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_LOOP_MIN_COUNT=16
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_SIZE=8192
+CONFIG_UID_SYS_STATS=y
+CONFIG_SCSI=y
+# CONFIG_SCSI_MQ_DEFAULT is not set
+# CONFIG_SCSI_PROC_FS is not set
+CONFIG_BLK_DEV_SD=y
+CONFIG_CHR_DEV_SG=y
+CONFIG_MD=y
+CONFIG_BLK_DEV_DM=y
+CONFIG_DM_CRYPT=y
+CONFIG_DM_DEFAULT_KEY=y
+CONFIG_DM_SNAPSHOT=y
+CONFIG_DM_UEVENT=y
+CONFIG_DM_VERITY=y
+CONFIG_DM_VERITY_AVB=y
+CONFIG_DM_VERITY_FEC=y
+CONFIG_DM_BOW=y
+CONFIG_NETDEVICES=y
+CONFIG_DUMMY=y
+CONFIG_WIREGUARD=y
+CONFIG_TUN=y
+CONFIG_VETH=y
+# CONFIG_ETHERNET is not set
+CONFIG_PHYLIB=y
+CONFIG_PPP=y
+CONFIG_PPP_BSDCOMP=y
+CONFIG_PPP_DEFLATE=y
+CONFIG_PPP_MPPE=y
+CONFIG_PPTP=y
+CONFIG_PPPOL2TP=y
+CONFIG_USB_RTL8152=y
+CONFIG_USB_USBNET=y
+# CONFIG_USB_NET_AX8817X is not set
+# CONFIG_USB_NET_AX88179_178A is not set
+# CONFIG_USB_NET_CDCETHER is not set
+# CONFIG_USB_NET_CDC_NCM is not set
+# CONFIG_USB_NET_NET1080 is not set
+# CONFIG_USB_NET_CDC_SUBSET is not set
+# CONFIG_USB_NET_ZAURUS is not set
+# CONFIG_WLAN_VENDOR_ADMTEK is not set
+# CONFIG_WLAN_VENDOR_ATH is not set
+# CONFIG_WLAN_VENDOR_ATMEL is not set
+# CONFIG_WLAN_VENDOR_BROADCOM is not set
+# CONFIG_WLAN_VENDOR_CISCO is not set
+# CONFIG_WLAN_VENDOR_INTEL is not set
+# CONFIG_WLAN_VENDOR_INTERSIL is not set
+# CONFIG_WLAN_VENDOR_MARVELL is not set
+# CONFIG_WLAN_VENDOR_MEDIATEK is not set
+# CONFIG_WLAN_VENDOR_RALINK is not set
+# CONFIG_WLAN_VENDOR_REALTEK is not set
+# CONFIG_WLAN_VENDOR_RSI is not set
+# CONFIG_WLAN_VENDOR_ST is not set
+# CONFIG_WLAN_VENDOR_TI is not set
+# CONFIG_WLAN_VENDOR_ZYDAS is not set
+# CONFIG_WLAN_VENDOR_QUANTENNA is not set
+CONFIG_INPUT_EVDEV=y
+CONFIG_KEYBOARD_GPIO=y
+# CONFIG_INPUT_MOUSE is not set
+CONFIG_INPUT_JOYSTICK=y
+CONFIG_JOYSTICK_XPAD=y
+CONFIG_INPUT_MISC=y
+CONFIG_INPUT_UINPUT=y
+# CONFIG_VT is not set
+# CONFIG_LEGACY_PTYS is not set
+# CONFIG_DEVMEM is not set
+CONFIG_SERIAL_8250=y
+# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
+CONFIG_SERIAL_8250_CONSOLE=y
+# CONFIG_SERIAL_8250_EXAR is not set
+CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_SERIAL_MSM_GENI_EARLY_CONSOLE=y
+CONFIG_SERIAL_DEV_BUS=y
+CONFIG_HW_RANDOM=y
+CONFIG_HPET=y
+# CONFIG_DEVPORT is not set
+# CONFIG_I2C_COMPAT is not set
+CONFIG_I2C_CHARDEV=y
+# CONFIG_I2C_HELPER_AUTO is not set
+CONFIG_SPI=y
+CONFIG_GPIOLIB=y
+# CONFIG_HWMON is not set
+CONFIG_DEVFREQ_THERMAL=y
+# CONFIG_X86_PKG_TEMP_THERMAL is not set
+CONFIG_WATCHDOG=y
+CONFIG_WATCHDOG_CORE=y
+CONFIG_MFD_SYSCON=y
+CONFIG_REGULATOR=y
+CONFIG_REGULATOR_FIXED_VOLTAGE=y
+CONFIG_MEDIA_SUPPORT=y
+CONFIG_MEDIA_CAMERA_SUPPORT=y
+CONFIG_MEDIA_CONTROLLER=y
+CONFIG_VIDEO_V4L2_SUBDEV_API=y
+# CONFIG_VGA_ARB is not set
+CONFIG_DRM=y
+# CONFIG_DRM_FBDEV_EMULATION is not set
+CONFIG_BACKLIGHT_LCD_SUPPORT=y
+# CONFIG_LCD_CLASS_DEVICE is not set
+CONFIG_BACKLIGHT_CLASS_DEVICE=y
+CONFIG_SOUND=y
+CONFIG_SND=y
+CONFIG_SND_HRTIMER=y
+CONFIG_SND_DYNAMIC_MINORS=y
+# CONFIG_SND_SUPPORT_OLD_API is not set
+# CONFIG_SND_DRIVERS is not set
+CONFIG_SND_USB_AUDIO=y
+CONFIG_SND_SOC=y
+CONFIG_HIDRAW=y
+CONFIG_UHID=y
+CONFIG_HID_APPLE=y
+CONFIG_HID_ELECOM=y
+CONFIG_HID_MAGICMOUSE=y
+CONFIG_HID_MICROSOFT=y
+CONFIG_HID_MULTITOUCH=y
+CONFIG_HID_NINTENDO=y
+CONFIG_HID_SONY=y
+CONFIG_HID_STEAM=y
+CONFIG_USB_HIDDEV=y
+CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_VBUS_DRAW=500
+CONFIG_USB_CONFIGFS=y
+CONFIG_USB_CONFIGFS_UEVENT=y
+CONFIG_USB_CONFIGFS_MASS_STORAGE=y
+CONFIG_USB_CONFIGFS_F_FS=y
+CONFIG_USB_CONFIGFS_F_ACC=y
+CONFIG_USB_CONFIGFS_F_AUDIO_SRC=y
+CONFIG_USB_CONFIGFS_F_MIDI=y
+CONFIG_MMC=y
+# CONFIG_PWRSEQ_EMMC is not set
+# CONFIG_PWRSEQ_SIMPLE is not set
+CONFIG_MMC_CRYPTO=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_PLTFM=y
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_TRANSIENT=y
+CONFIG_RTC_CLASS=y
+CONFIG_UIO=y
+CONFIG_STAGING=y
+CONFIG_ASHMEM=y
+CONFIG_REMOTEPROC=y
+CONFIG_PM_DEVFREQ=y
+CONFIG_IIO=y
+CONFIG_ANDROID=y
+CONFIG_ANDROID_BINDER_IPC=y
+CONFIG_ANDROID_BINDERFS=y
+CONFIG_LIBNVDIMM=y
+# CONFIG_ND_BLK is not set
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+CONFIG_EXT4_ENCRYPTION=y
+CONFIG_F2FS_FS=y
+CONFIG_F2FS_FS_SECURITY=y
+CONFIG_F2FS_FS_ENCRYPTION=y
+CONFIG_FS_ENCRYPTION_INLINE_CRYPT=y
+CONFIG_FS_VERITY=y
+CONFIG_FS_VERITY_BUILTIN_SIGNATURES=y
+# CONFIG_DNOTIFY is not set
+CONFIG_QUOTA=y
+CONFIG_QFMT_V2=y
+CONFIG_FUSE_FS=y
+CONFIG_OVERLAY_FS=y
+CONFIG_MSDOS_FS=y
+CONFIG_VFAT_FS=y
+CONFIG_TMPFS=y
+CONFIG_TMPFS_POSIX_ACL=y
+# CONFIG_EFIVAR_FS is not set
+CONFIG_PSTORE=y
+CONFIG_PSTORE_CONSOLE=y
+CONFIG_PSTORE_RAM=y
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_CODEPAGE_737=y
+CONFIG_NLS_CODEPAGE_775=y
+CONFIG_NLS_CODEPAGE_850=y
+CONFIG_NLS_CODEPAGE_852=y
+CONFIG_NLS_CODEPAGE_855=y
+CONFIG_NLS_CODEPAGE_857=y
+CONFIG_NLS_CODEPAGE_860=y
+CONFIG_NLS_CODEPAGE_861=y
+CONFIG_NLS_CODEPAGE_862=y
+CONFIG_NLS_CODEPAGE_863=y
+CONFIG_NLS_CODEPAGE_864=y
+CONFIG_NLS_CODEPAGE_865=y
+CONFIG_NLS_CODEPAGE_866=y
+CONFIG_NLS_CODEPAGE_869=y
+CONFIG_NLS_CODEPAGE_936=y
+CONFIG_NLS_CODEPAGE_950=y
+CONFIG_NLS_CODEPAGE_932=y
+CONFIG_NLS_CODEPAGE_949=y
+CONFIG_NLS_CODEPAGE_874=y
+CONFIG_NLS_ISO8859_8=y
+CONFIG_NLS_CODEPAGE_1250=y
+CONFIG_NLS_CODEPAGE_1251=y
+CONFIG_NLS_ASCII=y
+CONFIG_NLS_ISO8859_1=y
+CONFIG_NLS_ISO8859_2=y
+CONFIG_NLS_ISO8859_3=y
+CONFIG_NLS_ISO8859_4=y
+CONFIG_NLS_ISO8859_5=y
+CONFIG_NLS_ISO8859_6=y
+CONFIG_NLS_ISO8859_7=y
+CONFIG_NLS_ISO8859_9=y
+CONFIG_NLS_ISO8859_13=y
+CONFIG_NLS_ISO8859_14=y
+CONFIG_NLS_ISO8859_15=y
+CONFIG_NLS_KOI8_R=y
+CONFIG_NLS_KOI8_U=y
+CONFIG_NLS_MAC_ROMAN=y
+CONFIG_NLS_MAC_CELTIC=y
+CONFIG_NLS_MAC_CENTEURO=y
+CONFIG_NLS_MAC_CROATIAN=y
+CONFIG_NLS_MAC_CYRILLIC=y
+CONFIG_NLS_MAC_GAELIC=y
+CONFIG_NLS_MAC_GREEK=y
+CONFIG_NLS_MAC_ICELAND=y
+CONFIG_NLS_MAC_INUIT=y
+CONFIG_NLS_MAC_ROMANIAN=y
+CONFIG_NLS_MAC_TURKISH=y
+CONFIG_NLS_UTF8=y
+CONFIG_UNICODE=y
+CONFIG_SECURITY=y
+CONFIG_SECURITYFS=y
+CONFIG_SECURITY_NETWORK=y
+CONFIG_HARDENED_USERCOPY=y
+CONFIG_FORTIFY_SOURCE=y
+CONFIG_STATIC_USERMODEHELPER=y
+CONFIG_STATIC_USERMODEHELPER_PATH=""
+CONFIG_SECURITY_SELINUX=y
+CONFIG_INIT_STACK_ALL_ZERO=y
+CONFIG_INIT_ON_ALLOC_DEFAULT_ON=y
+CONFIG_CRYPTO_ADIANTUM=y
+CONFIG_CRYPTO_SHA256_SSSE3=y
+CONFIG_CRYPTO_AES_NI_INTEL=y
+CONFIG_CRYPTO_LZ4=y
+CONFIG_CRYPTO_ZSTD=y
+CONFIG_CRYPTO_ANSI_CPRNG=y
+CONFIG_CRC8=y
+CONFIG_XZ_DEC=y
+CONFIG_PRINTK_TIME=y
+CONFIG_DEBUG_INFO=y
+CONFIG_DEBUG_INFO_DWARF4=y
+# CONFIG_ENABLE_MUST_CHECK is not set
+# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_STACK_USAGE=y
+CONFIG_DEBUG_MEMORY_INIT=y
+CONFIG_SOFTLOCKUP_DETECTOR=y
+# CONFIG_DETECT_HUNG_TASK is not set
+CONFIG_PANIC_TIMEOUT=5
+CONFIG_SCHEDSTATS=y
+CONFIG_DEBUG_LIST=y
+CONFIG_UNWINDER_FRAME_POINTER=y
diff --git a/arch/x86/crypto/.gitignore b/arch/x86/crypto/.gitignore
new file mode 100644
index 0000000..30be040
--- /dev/null
+++ b/arch/x86/crypto/.gitignore
@@ -0,0 +1 @@
+poly1305-x86_64-cryptogams.S
diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile
index a450ad5..d7ebccf 100644
--- a/arch/x86/crypto/Makefile
+++ b/arch/x86/crypto/Makefile
@@ -8,8 +8,10 @@
avx_supported := $(call as-instr,vpxor %xmm0$(comma)%xmm0$(comma)%xmm0,yes,no)
avx2_supported := $(call as-instr,vpgatherdd %ymm0$(comma)(%eax$(comma)%ymm1\
$(comma)4)$(comma)%ymm2,yes,no)
+avx512_supported :=$(call as-instr,vpmovm2b %k1$(comma)%zmm5,yes,no)
sha1_ni_supported :=$(call as-instr,sha1msg1 %xmm0$(comma)%xmm1,yes,no)
sha256_ni_supported :=$(call as-instr,sha256msg1 %xmm0$(comma)%xmm1,yes,no)
+adx_supported := $(call as-instr,adox %r10$(comma)%r10,yes,no)
obj-$(CONFIG_CRYPTO_GLUE_HELPER_X86) += glue_helper.o
@@ -23,7 +25,7 @@
obj-$(CONFIG_CRYPTO_BLOWFISH_X86_64) += blowfish-x86_64.o
obj-$(CONFIG_CRYPTO_TWOFISH_X86_64) += twofish-x86_64.o
obj-$(CONFIG_CRYPTO_TWOFISH_X86_64_3WAY) += twofish-x86_64-3way.o
-obj-$(CONFIG_CRYPTO_CHACHA20_X86_64) += chacha20-x86_64.o
+obj-$(CONFIG_CRYPTO_CHACHA20_X86_64) += chacha-x86_64.o
obj-$(CONFIG_CRYPTO_SERPENT_SSE2_X86_64) += serpent-sse2-x86_64.o
obj-$(CONFIG_CRYPTO_AES_NI_INTEL) += aesni-intel.o
obj-$(CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL) += ghash-clmulni-intel.o
@@ -46,6 +48,11 @@
obj-$(CONFIG_CRYPTO_MORUS640_SSE2) += morus640-sse2.o
obj-$(CONFIG_CRYPTO_MORUS1280_SSE2) += morus1280-sse2.o
+# These modules require the assembler to support ADX.
+ifeq ($(adx_supported),yes)
+ obj-$(CONFIG_CRYPTO_CURVE25519_X86) += curve25519-x86_64.o
+endif
+
# These modules require assembler to support AVX.
ifeq ($(avx_supported),yes)
obj-$(CONFIG_CRYPTO_CAMELLIA_AESNI_AVX_X86_64) += \
@@ -54,6 +61,7 @@
obj-$(CONFIG_CRYPTO_CAST6_AVX_X86_64) += cast6-avx-x86_64.o
obj-$(CONFIG_CRYPTO_TWOFISH_AVX_X86_64) += twofish-avx-x86_64.o
obj-$(CONFIG_CRYPTO_SERPENT_AVX_X86_64) += serpent-avx-x86_64.o
+ obj-$(CONFIG_CRYPTO_BLAKE2S_X86) += blake2s-x86_64.o
endif
# These modules require assembler to support AVX2.
@@ -77,7 +85,7 @@
blowfish-x86_64-y := blowfish-x86_64-asm_64.o blowfish_glue.o
twofish-x86_64-y := twofish-x86_64-asm_64.o twofish_glue.o
twofish-x86_64-3way-y := twofish-x86_64-asm_64-3way.o twofish_glue_3way.o
-chacha20-x86_64-y := chacha20-ssse3-x86_64.o chacha20_glue.o
+chacha-x86_64-y := chacha-ssse3-x86_64.o chacha_glue.o
serpent-sse2-x86_64-y := serpent-sse2-x86_64-asm_64.o serpent_sse2_glue.o
aegis128-aesni-y := aegis128-aesni-asm.o aegis128-aesni-glue.o
@@ -87,6 +95,12 @@
morus640-sse2-y := morus640-sse2-asm.o morus640-sse2-glue.o
morus1280-sse2-y := morus1280-sse2-asm.o morus1280-sse2-glue.o
+blake2s-x86_64-y := blake2s-core.o blake2s-glue.o
+poly1305-x86_64-y := poly1305-x86_64-cryptogams.o poly1305_glue.o
+ifneq ($(CONFIG_CRYPTO_POLY1305_X86_64),)
+targets += poly1305-x86_64-cryptogams.S
+endif
+
ifeq ($(avx_supported),yes)
camellia-aesni-avx-x86_64-y := camellia-aesni-avx-asm_64.o \
camellia_aesni_avx_glue.o
@@ -100,20 +114,22 @@
ifeq ($(avx2_supported),yes)
camellia-aesni-avx2-y := camellia-aesni-avx2-asm_64.o camellia_aesni_avx2_glue.o
- chacha20-x86_64-y += chacha20-avx2-x86_64.o
+ chacha-x86_64-y += chacha-avx2-x86_64.o
serpent-avx2-y := serpent-avx2-asm_64.o serpent_avx2_glue.o
morus1280-avx2-y := morus1280-avx2-asm.o morus1280-avx2-glue.o
endif
+ifeq ($(avx512_supported),yes)
+ chacha-x86_64-y += chacha-avx512vl-x86_64.o
+endif
+
aesni-intel-y := aesni-intel_asm.o aesni-intel_glue.o fpu.o
aesni-intel-$(CONFIG_64BIT) += aesni-intel_avx-x86_64.o aes_ctrby8_avx-x86_64.o
ghash-clmulni-intel-y := ghash-clmulni-intel_asm.o ghash-clmulni-intel_glue.o
sha1-ssse3-y := sha1_ssse3_asm.o sha1_ssse3_glue.o
-poly1305-x86_64-y := poly1305-sse2-x86_64.o poly1305_glue.o
ifeq ($(avx2_supported),yes)
sha1-ssse3-y += sha1_avx2_x86_64_asm.o
-poly1305-x86_64-y += poly1305-avx2-x86_64.o
endif
ifeq ($(sha1_ni_supported),yes)
sha1-ssse3-y += sha1_ni_asm.o
@@ -127,3 +143,8 @@
endif
sha512-ssse3-y := sha512-ssse3-asm.o sha512-avx-asm.o sha512-avx2-asm.o sha512_ssse3_glue.o
crct10dif-pclmul-y := crct10dif-pcl-asm_64.o crct10dif-pclmul_glue.o
+
+quiet_cmd_perlasm = PERLASM $@
+ cmd_perlasm = $(PERL) $< > $@
+$(obj)/%.S: $(src)/%.pl FORCE
+ $(call if_changed,perlasm)
diff --git a/arch/x86/crypto/blake2s-core.S b/arch/x86/crypto/blake2s-core.S
new file mode 100644
index 0000000..8591938
--- /dev/null
+++ b/arch/x86/crypto/blake2s-core.S
@@ -0,0 +1,258 @@
+/* SPDX-License-Identifier: GPL-2.0 OR MIT */
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2017-2019 Samuel Neves <sneves@dei.uc.pt>. All Rights Reserved.
+ */
+
+#include <linux/linkage.h>
+
+.section .rodata.cst32.BLAKE2S_IV, "aM", @progbits, 32
+.align 32
+IV: .octa 0xA54FF53A3C6EF372BB67AE856A09E667
+ .octa 0x5BE0CD191F83D9AB9B05688C510E527F
+.section .rodata.cst16.ROT16, "aM", @progbits, 16
+.align 16
+ROT16: .octa 0x0D0C0F0E09080B0A0504070601000302
+.section .rodata.cst16.ROR328, "aM", @progbits, 16
+.align 16
+ROR328: .octa 0x0C0F0E0D080B0A090407060500030201
+.section .rodata.cst64.BLAKE2S_SIGMA, "aM", @progbits, 160
+.align 64
+SIGMA:
+.byte 0, 2, 4, 6, 1, 3, 5, 7, 14, 8, 10, 12, 15, 9, 11, 13
+.byte 14, 4, 9, 13, 10, 8, 15, 6, 5, 1, 0, 11, 3, 12, 2, 7
+.byte 11, 12, 5, 15, 8, 0, 2, 13, 9, 10, 3, 7, 4, 14, 6, 1
+.byte 7, 3, 13, 11, 9, 1, 12, 14, 15, 2, 5, 4, 8, 6, 10, 0
+.byte 9, 5, 2, 10, 0, 7, 4, 15, 3, 14, 11, 6, 13, 1, 12, 8
+.byte 2, 6, 0, 8, 12, 10, 11, 3, 1, 4, 7, 15, 9, 13, 5, 14
+.byte 12, 1, 14, 4, 5, 15, 13, 10, 8, 0, 6, 9, 11, 7, 3, 2
+.byte 13, 7, 12, 3, 11, 14, 1, 9, 2, 5, 15, 8, 10, 0, 4, 6
+.byte 6, 14, 11, 0, 15, 9, 3, 8, 10, 12, 13, 1, 5, 2, 7, 4
+.byte 10, 8, 7, 1, 2, 4, 6, 5, 13, 15, 9, 3, 0, 11, 14, 12
+#ifdef CONFIG_AS_AVX512
+.section .rodata.cst64.BLAKE2S_SIGMA2, "aM", @progbits, 640
+.align 64
+SIGMA2:
+.long 0, 2, 4, 6, 1, 3, 5, 7, 14, 8, 10, 12, 15, 9, 11, 13
+.long 8, 2, 13, 15, 10, 9, 12, 3, 6, 4, 0, 14, 5, 11, 1, 7
+.long 11, 13, 8, 6, 5, 10, 14, 3, 2, 4, 12, 15, 1, 0, 7, 9
+.long 11, 10, 7, 0, 8, 15, 1, 13, 3, 6, 2, 12, 4, 14, 9, 5
+.long 4, 10, 9, 14, 15, 0, 11, 8, 1, 7, 3, 13, 2, 5, 6, 12
+.long 2, 11, 4, 15, 14, 3, 10, 8, 13, 6, 5, 7, 0, 12, 1, 9
+.long 4, 8, 15, 9, 14, 11, 13, 5, 3, 2, 1, 12, 6, 10, 7, 0
+.long 6, 13, 0, 14, 12, 2, 1, 11, 15, 4, 5, 8, 7, 9, 3, 10
+.long 15, 5, 4, 13, 10, 7, 3, 11, 12, 2, 0, 6, 9, 8, 1, 14
+.long 8, 7, 14, 11, 13, 15, 0, 12, 10, 4, 5, 6, 3, 2, 1, 9
+#endif /* CONFIG_AS_AVX512 */
+
+.text
+#ifdef CONFIG_AS_SSSE3
+ENTRY(blake2s_compress_ssse3)
+ testq %rdx,%rdx
+ je .Lendofloop
+ movdqu (%rdi),%xmm0
+ movdqu 0x10(%rdi),%xmm1
+ movdqa ROT16(%rip),%xmm12
+ movdqa ROR328(%rip),%xmm13
+ movdqu 0x20(%rdi),%xmm14
+ movq %rcx,%xmm15
+ leaq SIGMA+0xa0(%rip),%r8
+ jmp .Lbeginofloop
+ .align 32
+.Lbeginofloop:
+ movdqa %xmm0,%xmm10
+ movdqa %xmm1,%xmm11
+ paddq %xmm15,%xmm14
+ movdqa IV(%rip),%xmm2
+ movdqa %xmm14,%xmm3
+ pxor IV+0x10(%rip),%xmm3
+ leaq SIGMA(%rip),%rcx
+.Lroundloop:
+ movzbl (%rcx),%eax
+ movd (%rsi,%rax,4),%xmm4
+ movzbl 0x1(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm5
+ movzbl 0x2(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm6
+ movzbl 0x3(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm7
+ punpckldq %xmm5,%xmm4
+ punpckldq %xmm7,%xmm6
+ punpcklqdq %xmm6,%xmm4
+ paddd %xmm4,%xmm0
+ paddd %xmm1,%xmm0
+ pxor %xmm0,%xmm3
+ pshufb %xmm12,%xmm3
+ paddd %xmm3,%xmm2
+ pxor %xmm2,%xmm1
+ movdqa %xmm1,%xmm8
+ psrld $0xc,%xmm1
+ pslld $0x14,%xmm8
+ por %xmm8,%xmm1
+ movzbl 0x4(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm5
+ movzbl 0x5(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm6
+ movzbl 0x6(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm7
+ movzbl 0x7(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm4
+ punpckldq %xmm6,%xmm5
+ punpckldq %xmm4,%xmm7
+ punpcklqdq %xmm7,%xmm5
+ paddd %xmm5,%xmm0
+ paddd %xmm1,%xmm0
+ pxor %xmm0,%xmm3
+ pshufb %xmm13,%xmm3
+ paddd %xmm3,%xmm2
+ pxor %xmm2,%xmm1
+ movdqa %xmm1,%xmm8
+ psrld $0x7,%xmm1
+ pslld $0x19,%xmm8
+ por %xmm8,%xmm1
+ pshufd $0x93,%xmm0,%xmm0
+ pshufd $0x4e,%xmm3,%xmm3
+ pshufd $0x39,%xmm2,%xmm2
+ movzbl 0x8(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm6
+ movzbl 0x9(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm7
+ movzbl 0xa(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm4
+ movzbl 0xb(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm5
+ punpckldq %xmm7,%xmm6
+ punpckldq %xmm5,%xmm4
+ punpcklqdq %xmm4,%xmm6
+ paddd %xmm6,%xmm0
+ paddd %xmm1,%xmm0
+ pxor %xmm0,%xmm3
+ pshufb %xmm12,%xmm3
+ paddd %xmm3,%xmm2
+ pxor %xmm2,%xmm1
+ movdqa %xmm1,%xmm8
+ psrld $0xc,%xmm1
+ pslld $0x14,%xmm8
+ por %xmm8,%xmm1
+ movzbl 0xc(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm7
+ movzbl 0xd(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm4
+ movzbl 0xe(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm5
+ movzbl 0xf(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm6
+ punpckldq %xmm4,%xmm7
+ punpckldq %xmm6,%xmm5
+ punpcklqdq %xmm5,%xmm7
+ paddd %xmm7,%xmm0
+ paddd %xmm1,%xmm0
+ pxor %xmm0,%xmm3
+ pshufb %xmm13,%xmm3
+ paddd %xmm3,%xmm2
+ pxor %xmm2,%xmm1
+ movdqa %xmm1,%xmm8
+ psrld $0x7,%xmm1
+ pslld $0x19,%xmm8
+ por %xmm8,%xmm1
+ pshufd $0x39,%xmm0,%xmm0
+ pshufd $0x4e,%xmm3,%xmm3
+ pshufd $0x93,%xmm2,%xmm2
+ addq $0x10,%rcx
+ cmpq %r8,%rcx
+ jnz .Lroundloop
+ pxor %xmm2,%xmm0
+ pxor %xmm3,%xmm1
+ pxor %xmm10,%xmm0
+ pxor %xmm11,%xmm1
+ addq $0x40,%rsi
+ decq %rdx
+ jnz .Lbeginofloop
+ movdqu %xmm0,(%rdi)
+ movdqu %xmm1,0x10(%rdi)
+ movdqu %xmm14,0x20(%rdi)
+.Lendofloop:
+ ret
+ENDPROC(blake2s_compress_ssse3)
+#endif /* CONFIG_AS_SSSE3 */
+
+#ifdef CONFIG_AS_AVX512
+ENTRY(blake2s_compress_avx512)
+ vmovdqu (%rdi),%xmm0
+ vmovdqu 0x10(%rdi),%xmm1
+ vmovdqu 0x20(%rdi),%xmm4
+ vmovq %rcx,%xmm5
+ vmovdqa IV(%rip),%xmm14
+ vmovdqa IV+16(%rip),%xmm15
+ jmp .Lblake2s_compress_avx512_mainloop
+.align 32
+.Lblake2s_compress_avx512_mainloop:
+ vmovdqa %xmm0,%xmm10
+ vmovdqa %xmm1,%xmm11
+ vpaddq %xmm5,%xmm4,%xmm4
+ vmovdqa %xmm14,%xmm2
+ vpxor %xmm15,%xmm4,%xmm3
+ vmovdqu (%rsi),%ymm6
+ vmovdqu 0x20(%rsi),%ymm7
+ addq $0x40,%rsi
+ leaq SIGMA2(%rip),%rax
+ movb $0xa,%cl
+.Lblake2s_compress_avx512_roundloop:
+ addq $0x40,%rax
+ vmovdqa -0x40(%rax),%ymm8
+ vmovdqa -0x20(%rax),%ymm9
+ vpermi2d %ymm7,%ymm6,%ymm8
+ vpermi2d %ymm7,%ymm6,%ymm9
+ vmovdqa %ymm8,%ymm6
+ vmovdqa %ymm9,%ymm7
+ vpaddd %xmm8,%xmm0,%xmm0
+ vpaddd %xmm1,%xmm0,%xmm0
+ vpxor %xmm0,%xmm3,%xmm3
+ vprord $0x10,%xmm3,%xmm3
+ vpaddd %xmm3,%xmm2,%xmm2
+ vpxor %xmm2,%xmm1,%xmm1
+ vprord $0xc,%xmm1,%xmm1
+ vextracti128 $0x1,%ymm8,%xmm8
+ vpaddd %xmm8,%xmm0,%xmm0
+ vpaddd %xmm1,%xmm0,%xmm0
+ vpxor %xmm0,%xmm3,%xmm3
+ vprord $0x8,%xmm3,%xmm3
+ vpaddd %xmm3,%xmm2,%xmm2
+ vpxor %xmm2,%xmm1,%xmm1
+ vprord $0x7,%xmm1,%xmm1
+ vpshufd $0x93,%xmm0,%xmm0
+ vpshufd $0x4e,%xmm3,%xmm3
+ vpshufd $0x39,%xmm2,%xmm2
+ vpaddd %xmm9,%xmm0,%xmm0
+ vpaddd %xmm1,%xmm0,%xmm0
+ vpxor %xmm0,%xmm3,%xmm3
+ vprord $0x10,%xmm3,%xmm3
+ vpaddd %xmm3,%xmm2,%xmm2
+ vpxor %xmm2,%xmm1,%xmm1
+ vprord $0xc,%xmm1,%xmm1
+ vextracti128 $0x1,%ymm9,%xmm9
+ vpaddd %xmm9,%xmm0,%xmm0
+ vpaddd %xmm1,%xmm0,%xmm0
+ vpxor %xmm0,%xmm3,%xmm3
+ vprord $0x8,%xmm3,%xmm3
+ vpaddd %xmm3,%xmm2,%xmm2
+ vpxor %xmm2,%xmm1,%xmm1
+ vprord $0x7,%xmm1,%xmm1
+ vpshufd $0x39,%xmm0,%xmm0
+ vpshufd $0x4e,%xmm3,%xmm3
+ vpshufd $0x93,%xmm2,%xmm2
+ decb %cl
+ jne .Lblake2s_compress_avx512_roundloop
+ vpxor %xmm10,%xmm0,%xmm0
+ vpxor %xmm11,%xmm1,%xmm1
+ vpxor %xmm2,%xmm0,%xmm0
+ vpxor %xmm3,%xmm1,%xmm1
+ decq %rdx
+ jne .Lblake2s_compress_avx512_mainloop
+ vmovdqu %xmm0,(%rdi)
+ vmovdqu %xmm1,0x10(%rdi)
+ vmovdqu %xmm4,0x20(%rdi)
+ vzeroupper
+ retq
+ENDPROC(blake2s_compress_avx512)
+#endif /* CONFIG_AS_AVX512 */
diff --git a/arch/x86/crypto/blake2s-glue.c b/arch/x86/crypto/blake2s-glue.c
new file mode 100644
index 0000000..5fe0a86
--- /dev/null
+++ b/arch/x86/crypto/blake2s-glue.c
@@ -0,0 +1,232 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#include <crypto/internal/blake2s.h>
+#include <crypto/internal/hash.h>
+
+#include <linux/types.h>
+#include <linux/jump_label.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include <asm/cpufeature.h>
+#include <asm/fpu/api.h>
+#include <asm/processor.h>
+#include <asm/simd.h>
+
+asmlinkage void blake2s_compress_ssse3(struct blake2s_state *state,
+ const u8 *block, const size_t nblocks,
+ const u32 inc);
+asmlinkage void blake2s_compress_avx512(struct blake2s_state *state,
+ const u8 *block, const size_t nblocks,
+ const u32 inc);
+
+static __ro_after_init DEFINE_STATIC_KEY_FALSE(blake2s_use_ssse3);
+static __ro_after_init DEFINE_STATIC_KEY_FALSE(blake2s_use_avx512);
+
+void blake2s_compress_arch(struct blake2s_state *state,
+ const u8 *block, size_t nblocks,
+ const u32 inc)
+{
+ /* SIMD disables preemption, so relax after processing each page. */
+ BUILD_BUG_ON(SZ_4K / BLAKE2S_BLOCK_SIZE < 8);
+
+ if (!static_branch_likely(&blake2s_use_ssse3) || !may_use_simd()) {
+ blake2s_compress_generic(state, block, nblocks, inc);
+ return;
+ }
+
+ do {
+ const size_t blocks = min_t(size_t, nblocks,
+ SZ_4K / BLAKE2S_BLOCK_SIZE);
+
+ kernel_fpu_begin();
+ if (IS_ENABLED(CONFIG_AS_AVX512) &&
+ static_branch_likely(&blake2s_use_avx512))
+ blake2s_compress_avx512(state, block, blocks, inc);
+ else
+ blake2s_compress_ssse3(state, block, blocks, inc);
+ kernel_fpu_end();
+
+ nblocks -= blocks;
+ block += blocks * BLAKE2S_BLOCK_SIZE;
+ } while (nblocks);
+}
+EXPORT_SYMBOL(blake2s_compress_arch);
+
+static int crypto_blake2s_setkey(struct crypto_shash *tfm, const u8 *key,
+ unsigned int keylen)
+{
+ struct blake2s_tfm_ctx *tctx = crypto_shash_ctx(tfm);
+
+ if (keylen == 0 || keylen > BLAKE2S_KEY_SIZE) {
+ crypto_shash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ return -EINVAL;
+ }
+
+ memcpy(tctx->key, key, keylen);
+ tctx->keylen = keylen;
+
+ return 0;
+}
+
+static int crypto_blake2s_init(struct shash_desc *desc)
+{
+ struct blake2s_tfm_ctx *tctx = crypto_shash_ctx(desc->tfm);
+ struct blake2s_state *state = shash_desc_ctx(desc);
+ const int outlen = crypto_shash_digestsize(desc->tfm);
+
+ if (tctx->keylen)
+ blake2s_init_key(state, outlen, tctx->key, tctx->keylen);
+ else
+ blake2s_init(state, outlen);
+
+ return 0;
+}
+
+static int crypto_blake2s_update(struct shash_desc *desc, const u8 *in,
+ unsigned int inlen)
+{
+ struct blake2s_state *state = shash_desc_ctx(desc);
+ const size_t fill = BLAKE2S_BLOCK_SIZE - state->buflen;
+
+ if (unlikely(!inlen))
+ return 0;
+ if (inlen > fill) {
+ memcpy(state->buf + state->buflen, in, fill);
+ blake2s_compress_arch(state, state->buf, 1, BLAKE2S_BLOCK_SIZE);
+ state->buflen = 0;
+ in += fill;
+ inlen -= fill;
+ }
+ if (inlen > BLAKE2S_BLOCK_SIZE) {
+ const size_t nblocks = DIV_ROUND_UP(inlen, BLAKE2S_BLOCK_SIZE);
+ /* Hash one less (full) block than strictly possible */
+ blake2s_compress_arch(state, in, nblocks - 1, BLAKE2S_BLOCK_SIZE);
+ in += BLAKE2S_BLOCK_SIZE * (nblocks - 1);
+ inlen -= BLAKE2S_BLOCK_SIZE * (nblocks - 1);
+ }
+ memcpy(state->buf + state->buflen, in, inlen);
+ state->buflen += inlen;
+
+ return 0;
+}
+
+static int crypto_blake2s_final(struct shash_desc *desc, u8 *out)
+{
+ struct blake2s_state *state = shash_desc_ctx(desc);
+
+ blake2s_set_lastblock(state);
+ memset(state->buf + state->buflen, 0,
+ BLAKE2S_BLOCK_SIZE - state->buflen); /* Padding */
+ blake2s_compress_arch(state, state->buf, 1, state->buflen);
+ cpu_to_le32_array(state->h, ARRAY_SIZE(state->h));
+ memcpy(out, state->h, state->outlen);
+ memzero_explicit(state, sizeof(*state));
+
+ return 0;
+}
+
+static struct shash_alg blake2s_algs[] = {{
+ .base.cra_name = "blake2s-128",
+ .base.cra_driver_name = "blake2s-128-x86",
+ .base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY,
+ .base.cra_ctxsize = sizeof(struct blake2s_tfm_ctx),
+ .base.cra_priority = 200,
+ .base.cra_blocksize = BLAKE2S_BLOCK_SIZE,
+ .base.cra_module = THIS_MODULE,
+
+ .digestsize = BLAKE2S_128_HASH_SIZE,
+ .setkey = crypto_blake2s_setkey,
+ .init = crypto_blake2s_init,
+ .update = crypto_blake2s_update,
+ .final = crypto_blake2s_final,
+ .descsize = sizeof(struct blake2s_state),
+}, {
+ .base.cra_name = "blake2s-160",
+ .base.cra_driver_name = "blake2s-160-x86",
+ .base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY,
+ .base.cra_ctxsize = sizeof(struct blake2s_tfm_ctx),
+ .base.cra_priority = 200,
+ .base.cra_blocksize = BLAKE2S_BLOCK_SIZE,
+ .base.cra_module = THIS_MODULE,
+
+ .digestsize = BLAKE2S_160_HASH_SIZE,
+ .setkey = crypto_blake2s_setkey,
+ .init = crypto_blake2s_init,
+ .update = crypto_blake2s_update,
+ .final = crypto_blake2s_final,
+ .descsize = sizeof(struct blake2s_state),
+}, {
+ .base.cra_name = "blake2s-224",
+ .base.cra_driver_name = "blake2s-224-x86",
+ .base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY,
+ .base.cra_ctxsize = sizeof(struct blake2s_tfm_ctx),
+ .base.cra_priority = 200,
+ .base.cra_blocksize = BLAKE2S_BLOCK_SIZE,
+ .base.cra_module = THIS_MODULE,
+
+ .digestsize = BLAKE2S_224_HASH_SIZE,
+ .setkey = crypto_blake2s_setkey,
+ .init = crypto_blake2s_init,
+ .update = crypto_blake2s_update,
+ .final = crypto_blake2s_final,
+ .descsize = sizeof(struct blake2s_state),
+}, {
+ .base.cra_name = "blake2s-256",
+ .base.cra_driver_name = "blake2s-256-x86",
+ .base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY,
+ .base.cra_ctxsize = sizeof(struct blake2s_tfm_ctx),
+ .base.cra_priority = 200,
+ .base.cra_blocksize = BLAKE2S_BLOCK_SIZE,
+ .base.cra_module = THIS_MODULE,
+
+ .digestsize = BLAKE2S_256_HASH_SIZE,
+ .setkey = crypto_blake2s_setkey,
+ .init = crypto_blake2s_init,
+ .update = crypto_blake2s_update,
+ .final = crypto_blake2s_final,
+ .descsize = sizeof(struct blake2s_state),
+}};
+
+static int __init blake2s_mod_init(void)
+{
+ if (!boot_cpu_has(X86_FEATURE_SSSE3))
+ return 0;
+
+ static_branch_enable(&blake2s_use_ssse3);
+
+ if (IS_ENABLED(CONFIG_AS_AVX512) &&
+ boot_cpu_has(X86_FEATURE_AVX) &&
+ boot_cpu_has(X86_FEATURE_AVX2) &&
+ boot_cpu_has(X86_FEATURE_AVX512F) &&
+ boot_cpu_has(X86_FEATURE_AVX512VL) &&
+ cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM |
+ XFEATURE_MASK_AVX512, NULL))
+ static_branch_enable(&blake2s_use_avx512);
+
+ return IS_REACHABLE(CONFIG_CRYPTO_HASH) ?
+ crypto_register_shashes(blake2s_algs,
+ ARRAY_SIZE(blake2s_algs)) : 0;
+}
+
+static void __exit blake2s_mod_exit(void)
+{
+ if (IS_REACHABLE(CONFIG_CRYPTO_HASH) && boot_cpu_has(X86_FEATURE_SSSE3))
+ crypto_unregister_shashes(blake2s_algs, ARRAY_SIZE(blake2s_algs));
+}
+
+module_init(blake2s_mod_init);
+module_exit(blake2s_mod_exit);
+
+MODULE_ALIAS_CRYPTO("blake2s-128");
+MODULE_ALIAS_CRYPTO("blake2s-128-x86");
+MODULE_ALIAS_CRYPTO("blake2s-160");
+MODULE_ALIAS_CRYPTO("blake2s-160-x86");
+MODULE_ALIAS_CRYPTO("blake2s-224");
+MODULE_ALIAS_CRYPTO("blake2s-224-x86");
+MODULE_ALIAS_CRYPTO("blake2s-256");
+MODULE_ALIAS_CRYPTO("blake2s-256-x86");
+MODULE_LICENSE("GPL v2");
diff --git a/arch/x86/crypto/chacha-avx2-x86_64.S b/arch/x86/crypto/chacha-avx2-x86_64.S
new file mode 100644
index 0000000..32903fd
--- /dev/null
+++ b/arch/x86/crypto/chacha-avx2-x86_64.S
@@ -0,0 +1,1025 @@
+/*
+ * ChaCha 256-bit cipher algorithm, x64 AVX2 functions
+ *
+ * Copyright (C) 2015 Martin Willi
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/linkage.h>
+
+.section .rodata.cst32.ROT8, "aM", @progbits, 32
+.align 32
+ROT8: .octa 0x0e0d0c0f0a09080b0605040702010003
+ .octa 0x0e0d0c0f0a09080b0605040702010003
+
+.section .rodata.cst32.ROT16, "aM", @progbits, 32
+.align 32
+ROT16: .octa 0x0d0c0f0e09080b0a0504070601000302
+ .octa 0x0d0c0f0e09080b0a0504070601000302
+
+.section .rodata.cst32.CTRINC, "aM", @progbits, 32
+.align 32
+CTRINC: .octa 0x00000003000000020000000100000000
+ .octa 0x00000007000000060000000500000004
+
+.section .rodata.cst32.CTR2BL, "aM", @progbits, 32
+.align 32
+CTR2BL: .octa 0x00000000000000000000000000000000
+ .octa 0x00000000000000000000000000000001
+
+.section .rodata.cst32.CTR4BL, "aM", @progbits, 32
+.align 32
+CTR4BL: .octa 0x00000000000000000000000000000002
+ .octa 0x00000000000000000000000000000003
+
+.text
+
+ENTRY(chacha_2block_xor_avx2)
+ # %rdi: Input state matrix, s
+ # %rsi: up to 2 data blocks output, o
+ # %rdx: up to 2 data blocks input, i
+ # %rcx: input/output length in bytes
+ # %r8d: nrounds
+
+ # This function encrypts two ChaCha blocks by loading the state
+ # matrix twice across four AVX registers. It performs matrix operations
+ # on four words in each matrix in parallel, but requires shuffling to
+ # rearrange the words after each round.
+
+ vzeroupper
+
+ # x0..3[0-2] = s0..3
+ vbroadcasti128 0x00(%rdi),%ymm0
+ vbroadcasti128 0x10(%rdi),%ymm1
+ vbroadcasti128 0x20(%rdi),%ymm2
+ vbroadcasti128 0x30(%rdi),%ymm3
+
+ vpaddd CTR2BL(%rip),%ymm3,%ymm3
+
+ vmovdqa %ymm0,%ymm8
+ vmovdqa %ymm1,%ymm9
+ vmovdqa %ymm2,%ymm10
+ vmovdqa %ymm3,%ymm11
+
+ vmovdqa ROT8(%rip),%ymm4
+ vmovdqa ROT16(%rip),%ymm5
+
+ mov %rcx,%rax
+
+.Ldoubleround:
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 16)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxor %ymm0,%ymm3,%ymm3
+ vpshufb %ymm5,%ymm3,%ymm3
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 12)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxor %ymm2,%ymm1,%ymm1
+ vmovdqa %ymm1,%ymm6
+ vpslld $12,%ymm6,%ymm6
+ vpsrld $20,%ymm1,%ymm1
+ vpor %ymm6,%ymm1,%ymm1
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 8)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxor %ymm0,%ymm3,%ymm3
+ vpshufb %ymm4,%ymm3,%ymm3
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 7)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxor %ymm2,%ymm1,%ymm1
+ vmovdqa %ymm1,%ymm7
+ vpslld $7,%ymm7,%ymm7
+ vpsrld $25,%ymm1,%ymm1
+ vpor %ymm7,%ymm1,%ymm1
+
+ # x1 = shuffle32(x1, MASK(0, 3, 2, 1))
+ vpshufd $0x39,%ymm1,%ymm1
+ # x2 = shuffle32(x2, MASK(1, 0, 3, 2))
+ vpshufd $0x4e,%ymm2,%ymm2
+ # x3 = shuffle32(x3, MASK(2, 1, 0, 3))
+ vpshufd $0x93,%ymm3,%ymm3
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 16)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxor %ymm0,%ymm3,%ymm3
+ vpshufb %ymm5,%ymm3,%ymm3
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 12)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxor %ymm2,%ymm1,%ymm1
+ vmovdqa %ymm1,%ymm6
+ vpslld $12,%ymm6,%ymm6
+ vpsrld $20,%ymm1,%ymm1
+ vpor %ymm6,%ymm1,%ymm1
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 8)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxor %ymm0,%ymm3,%ymm3
+ vpshufb %ymm4,%ymm3,%ymm3
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 7)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxor %ymm2,%ymm1,%ymm1
+ vmovdqa %ymm1,%ymm7
+ vpslld $7,%ymm7,%ymm7
+ vpsrld $25,%ymm1,%ymm1
+ vpor %ymm7,%ymm1,%ymm1
+
+ # x1 = shuffle32(x1, MASK(2, 1, 0, 3))
+ vpshufd $0x93,%ymm1,%ymm1
+ # x2 = shuffle32(x2, MASK(1, 0, 3, 2))
+ vpshufd $0x4e,%ymm2,%ymm2
+ # x3 = shuffle32(x3, MASK(0, 3, 2, 1))
+ vpshufd $0x39,%ymm3,%ymm3
+
+ sub $2,%r8d
+ jnz .Ldoubleround
+
+ # o0 = i0 ^ (x0 + s0)
+ vpaddd %ymm8,%ymm0,%ymm7
+ cmp $0x10,%rax
+ jl .Lxorpart2
+ vpxor 0x00(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x00(%rsi)
+ vextracti128 $1,%ymm7,%xmm0
+ # o1 = i1 ^ (x1 + s1)
+ vpaddd %ymm9,%ymm1,%ymm7
+ cmp $0x20,%rax
+ jl .Lxorpart2
+ vpxor 0x10(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x10(%rsi)
+ vextracti128 $1,%ymm7,%xmm1
+ # o2 = i2 ^ (x2 + s2)
+ vpaddd %ymm10,%ymm2,%ymm7
+ cmp $0x30,%rax
+ jl .Lxorpart2
+ vpxor 0x20(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x20(%rsi)
+ vextracti128 $1,%ymm7,%xmm2
+ # o3 = i3 ^ (x3 + s3)
+ vpaddd %ymm11,%ymm3,%ymm7
+ cmp $0x40,%rax
+ jl .Lxorpart2
+ vpxor 0x30(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x30(%rsi)
+ vextracti128 $1,%ymm7,%xmm3
+
+ # xor and write second block
+ vmovdqa %xmm0,%xmm7
+ cmp $0x50,%rax
+ jl .Lxorpart2
+ vpxor 0x40(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x40(%rsi)
+
+ vmovdqa %xmm1,%xmm7
+ cmp $0x60,%rax
+ jl .Lxorpart2
+ vpxor 0x50(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x50(%rsi)
+
+ vmovdqa %xmm2,%xmm7
+ cmp $0x70,%rax
+ jl .Lxorpart2
+ vpxor 0x60(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x60(%rsi)
+
+ vmovdqa %xmm3,%xmm7
+ cmp $0x80,%rax
+ jl .Lxorpart2
+ vpxor 0x70(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x70(%rsi)
+
+.Ldone2:
+ vzeroupper
+ ret
+
+.Lxorpart2:
+ # xor remaining bytes from partial register into output
+ mov %rax,%r9
+ and $0x0f,%r9
+ jz .Ldone2
+ and $~0x0f,%rax
+
+ mov %rsi,%r11
+
+ lea 8(%rsp),%r10
+ sub $0x10,%rsp
+ and $~31,%rsp
+
+ lea (%rdx,%rax),%rsi
+ mov %rsp,%rdi
+ mov %r9,%rcx
+ rep movsb
+
+ vpxor 0x00(%rsp),%xmm7,%xmm7
+ vmovdqa %xmm7,0x00(%rsp)
+
+ mov %rsp,%rsi
+ lea (%r11,%rax),%rdi
+ mov %r9,%rcx
+ rep movsb
+
+ lea -8(%r10),%rsp
+ jmp .Ldone2
+
+ENDPROC(chacha_2block_xor_avx2)
+
+ENTRY(chacha_4block_xor_avx2)
+ # %rdi: Input state matrix, s
+ # %rsi: up to 4 data blocks output, o
+ # %rdx: up to 4 data blocks input, i
+ # %rcx: input/output length in bytes
+ # %r8d: nrounds
+
+ # This function encrypts four ChaCha blocks by loading the state
+ # matrix four times across eight AVX registers. It performs matrix
+ # operations on four words in two matrices in parallel, sequentially
+ # to the operations on the four words of the other two matrices. The
+ # required word shuffling has a rather high latency, we can do the
+ # arithmetic on two matrix-pairs without much slowdown.
+
+ vzeroupper
+
+ # x0..3[0-4] = s0..3
+ vbroadcasti128 0x00(%rdi),%ymm0
+ vbroadcasti128 0x10(%rdi),%ymm1
+ vbroadcasti128 0x20(%rdi),%ymm2
+ vbroadcasti128 0x30(%rdi),%ymm3
+
+ vmovdqa %ymm0,%ymm4
+ vmovdqa %ymm1,%ymm5
+ vmovdqa %ymm2,%ymm6
+ vmovdqa %ymm3,%ymm7
+
+ vpaddd CTR2BL(%rip),%ymm3,%ymm3
+ vpaddd CTR4BL(%rip),%ymm7,%ymm7
+
+ vmovdqa %ymm0,%ymm11
+ vmovdqa %ymm1,%ymm12
+ vmovdqa %ymm2,%ymm13
+ vmovdqa %ymm3,%ymm14
+ vmovdqa %ymm7,%ymm15
+
+ vmovdqa ROT8(%rip),%ymm8
+ vmovdqa ROT16(%rip),%ymm9
+
+ mov %rcx,%rax
+
+.Ldoubleround4:
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 16)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxor %ymm0,%ymm3,%ymm3
+ vpshufb %ymm9,%ymm3,%ymm3
+
+ vpaddd %ymm5,%ymm4,%ymm4
+ vpxor %ymm4,%ymm7,%ymm7
+ vpshufb %ymm9,%ymm7,%ymm7
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 12)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxor %ymm2,%ymm1,%ymm1
+ vmovdqa %ymm1,%ymm10
+ vpslld $12,%ymm10,%ymm10
+ vpsrld $20,%ymm1,%ymm1
+ vpor %ymm10,%ymm1,%ymm1
+
+ vpaddd %ymm7,%ymm6,%ymm6
+ vpxor %ymm6,%ymm5,%ymm5
+ vmovdqa %ymm5,%ymm10
+ vpslld $12,%ymm10,%ymm10
+ vpsrld $20,%ymm5,%ymm5
+ vpor %ymm10,%ymm5,%ymm5
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 8)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxor %ymm0,%ymm3,%ymm3
+ vpshufb %ymm8,%ymm3,%ymm3
+
+ vpaddd %ymm5,%ymm4,%ymm4
+ vpxor %ymm4,%ymm7,%ymm7
+ vpshufb %ymm8,%ymm7,%ymm7
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 7)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxor %ymm2,%ymm1,%ymm1
+ vmovdqa %ymm1,%ymm10
+ vpslld $7,%ymm10,%ymm10
+ vpsrld $25,%ymm1,%ymm1
+ vpor %ymm10,%ymm1,%ymm1
+
+ vpaddd %ymm7,%ymm6,%ymm6
+ vpxor %ymm6,%ymm5,%ymm5
+ vmovdqa %ymm5,%ymm10
+ vpslld $7,%ymm10,%ymm10
+ vpsrld $25,%ymm5,%ymm5
+ vpor %ymm10,%ymm5,%ymm5
+
+ # x1 = shuffle32(x1, MASK(0, 3, 2, 1))
+ vpshufd $0x39,%ymm1,%ymm1
+ vpshufd $0x39,%ymm5,%ymm5
+ # x2 = shuffle32(x2, MASK(1, 0, 3, 2))
+ vpshufd $0x4e,%ymm2,%ymm2
+ vpshufd $0x4e,%ymm6,%ymm6
+ # x3 = shuffle32(x3, MASK(2, 1, 0, 3))
+ vpshufd $0x93,%ymm3,%ymm3
+ vpshufd $0x93,%ymm7,%ymm7
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 16)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxor %ymm0,%ymm3,%ymm3
+ vpshufb %ymm9,%ymm3,%ymm3
+
+ vpaddd %ymm5,%ymm4,%ymm4
+ vpxor %ymm4,%ymm7,%ymm7
+ vpshufb %ymm9,%ymm7,%ymm7
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 12)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxor %ymm2,%ymm1,%ymm1
+ vmovdqa %ymm1,%ymm10
+ vpslld $12,%ymm10,%ymm10
+ vpsrld $20,%ymm1,%ymm1
+ vpor %ymm10,%ymm1,%ymm1
+
+ vpaddd %ymm7,%ymm6,%ymm6
+ vpxor %ymm6,%ymm5,%ymm5
+ vmovdqa %ymm5,%ymm10
+ vpslld $12,%ymm10,%ymm10
+ vpsrld $20,%ymm5,%ymm5
+ vpor %ymm10,%ymm5,%ymm5
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 8)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxor %ymm0,%ymm3,%ymm3
+ vpshufb %ymm8,%ymm3,%ymm3
+
+ vpaddd %ymm5,%ymm4,%ymm4
+ vpxor %ymm4,%ymm7,%ymm7
+ vpshufb %ymm8,%ymm7,%ymm7
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 7)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxor %ymm2,%ymm1,%ymm1
+ vmovdqa %ymm1,%ymm10
+ vpslld $7,%ymm10,%ymm10
+ vpsrld $25,%ymm1,%ymm1
+ vpor %ymm10,%ymm1,%ymm1
+
+ vpaddd %ymm7,%ymm6,%ymm6
+ vpxor %ymm6,%ymm5,%ymm5
+ vmovdqa %ymm5,%ymm10
+ vpslld $7,%ymm10,%ymm10
+ vpsrld $25,%ymm5,%ymm5
+ vpor %ymm10,%ymm5,%ymm5
+
+ # x1 = shuffle32(x1, MASK(2, 1, 0, 3))
+ vpshufd $0x93,%ymm1,%ymm1
+ vpshufd $0x93,%ymm5,%ymm5
+ # x2 = shuffle32(x2, MASK(1, 0, 3, 2))
+ vpshufd $0x4e,%ymm2,%ymm2
+ vpshufd $0x4e,%ymm6,%ymm6
+ # x3 = shuffle32(x3, MASK(0, 3, 2, 1))
+ vpshufd $0x39,%ymm3,%ymm3
+ vpshufd $0x39,%ymm7,%ymm7
+
+ sub $2,%r8d
+ jnz .Ldoubleround4
+
+ # o0 = i0 ^ (x0 + s0), first block
+ vpaddd %ymm11,%ymm0,%ymm10
+ cmp $0x10,%rax
+ jl .Lxorpart4
+ vpxor 0x00(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x00(%rsi)
+ vextracti128 $1,%ymm10,%xmm0
+ # o1 = i1 ^ (x1 + s1), first block
+ vpaddd %ymm12,%ymm1,%ymm10
+ cmp $0x20,%rax
+ jl .Lxorpart4
+ vpxor 0x10(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x10(%rsi)
+ vextracti128 $1,%ymm10,%xmm1
+ # o2 = i2 ^ (x2 + s2), first block
+ vpaddd %ymm13,%ymm2,%ymm10
+ cmp $0x30,%rax
+ jl .Lxorpart4
+ vpxor 0x20(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x20(%rsi)
+ vextracti128 $1,%ymm10,%xmm2
+ # o3 = i3 ^ (x3 + s3), first block
+ vpaddd %ymm14,%ymm3,%ymm10
+ cmp $0x40,%rax
+ jl .Lxorpart4
+ vpxor 0x30(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x30(%rsi)
+ vextracti128 $1,%ymm10,%xmm3
+
+ # xor and write second block
+ vmovdqa %xmm0,%xmm10
+ cmp $0x50,%rax
+ jl .Lxorpart4
+ vpxor 0x40(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x40(%rsi)
+
+ vmovdqa %xmm1,%xmm10
+ cmp $0x60,%rax
+ jl .Lxorpart4
+ vpxor 0x50(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x50(%rsi)
+
+ vmovdqa %xmm2,%xmm10
+ cmp $0x70,%rax
+ jl .Lxorpart4
+ vpxor 0x60(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x60(%rsi)
+
+ vmovdqa %xmm3,%xmm10
+ cmp $0x80,%rax
+ jl .Lxorpart4
+ vpxor 0x70(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x70(%rsi)
+
+ # o0 = i0 ^ (x0 + s0), third block
+ vpaddd %ymm11,%ymm4,%ymm10
+ cmp $0x90,%rax
+ jl .Lxorpart4
+ vpxor 0x80(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x80(%rsi)
+ vextracti128 $1,%ymm10,%xmm4
+ # o1 = i1 ^ (x1 + s1), third block
+ vpaddd %ymm12,%ymm5,%ymm10
+ cmp $0xa0,%rax
+ jl .Lxorpart4
+ vpxor 0x90(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x90(%rsi)
+ vextracti128 $1,%ymm10,%xmm5
+ # o2 = i2 ^ (x2 + s2), third block
+ vpaddd %ymm13,%ymm6,%ymm10
+ cmp $0xb0,%rax
+ jl .Lxorpart4
+ vpxor 0xa0(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0xa0(%rsi)
+ vextracti128 $1,%ymm10,%xmm6
+ # o3 = i3 ^ (x3 + s3), third block
+ vpaddd %ymm15,%ymm7,%ymm10
+ cmp $0xc0,%rax
+ jl .Lxorpart4
+ vpxor 0xb0(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0xb0(%rsi)
+ vextracti128 $1,%ymm10,%xmm7
+
+ # xor and write fourth block
+ vmovdqa %xmm4,%xmm10
+ cmp $0xd0,%rax
+ jl .Lxorpart4
+ vpxor 0xc0(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0xc0(%rsi)
+
+ vmovdqa %xmm5,%xmm10
+ cmp $0xe0,%rax
+ jl .Lxorpart4
+ vpxor 0xd0(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0xd0(%rsi)
+
+ vmovdqa %xmm6,%xmm10
+ cmp $0xf0,%rax
+ jl .Lxorpart4
+ vpxor 0xe0(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0xe0(%rsi)
+
+ vmovdqa %xmm7,%xmm10
+ cmp $0x100,%rax
+ jl .Lxorpart4
+ vpxor 0xf0(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0xf0(%rsi)
+
+.Ldone4:
+ vzeroupper
+ ret
+
+.Lxorpart4:
+ # xor remaining bytes from partial register into output
+ mov %rax,%r9
+ and $0x0f,%r9
+ jz .Ldone4
+ and $~0x0f,%rax
+
+ mov %rsi,%r11
+
+ lea 8(%rsp),%r10
+ sub $0x10,%rsp
+ and $~31,%rsp
+
+ lea (%rdx,%rax),%rsi
+ mov %rsp,%rdi
+ mov %r9,%rcx
+ rep movsb
+
+ vpxor 0x00(%rsp),%xmm10,%xmm10
+ vmovdqa %xmm10,0x00(%rsp)
+
+ mov %rsp,%rsi
+ lea (%r11,%rax),%rdi
+ mov %r9,%rcx
+ rep movsb
+
+ lea -8(%r10),%rsp
+ jmp .Ldone4
+
+ENDPROC(chacha_4block_xor_avx2)
+
+ENTRY(chacha_8block_xor_avx2)
+ # %rdi: Input state matrix, s
+ # %rsi: up to 8 data blocks output, o
+ # %rdx: up to 8 data blocks input, i
+ # %rcx: input/output length in bytes
+ # %r8d: nrounds
+
+ # This function encrypts eight consecutive ChaCha blocks by loading
+ # the state matrix in AVX registers eight times. As we need some
+ # scratch registers, we save the first four registers on the stack. The
+ # algorithm performs each operation on the corresponding word of each
+ # state matrix, hence requires no word shuffling. For final XORing step
+ # we transpose the matrix by interleaving 32-, 64- and then 128-bit
+ # words, which allows us to do XOR in AVX registers. 8/16-bit word
+ # rotation is done with the slightly better performing byte shuffling,
+ # 7/12-bit word rotation uses traditional shift+OR.
+
+ vzeroupper
+ # 4 * 32 byte stack, 32-byte aligned
+ lea 8(%rsp),%r10
+ and $~31, %rsp
+ sub $0x80, %rsp
+ mov %rcx,%rax
+
+ # x0..15[0-7] = s[0..15]
+ vpbroadcastd 0x00(%rdi),%ymm0
+ vpbroadcastd 0x04(%rdi),%ymm1
+ vpbroadcastd 0x08(%rdi),%ymm2
+ vpbroadcastd 0x0c(%rdi),%ymm3
+ vpbroadcastd 0x10(%rdi),%ymm4
+ vpbroadcastd 0x14(%rdi),%ymm5
+ vpbroadcastd 0x18(%rdi),%ymm6
+ vpbroadcastd 0x1c(%rdi),%ymm7
+ vpbroadcastd 0x20(%rdi),%ymm8
+ vpbroadcastd 0x24(%rdi),%ymm9
+ vpbroadcastd 0x28(%rdi),%ymm10
+ vpbroadcastd 0x2c(%rdi),%ymm11
+ vpbroadcastd 0x30(%rdi),%ymm12
+ vpbroadcastd 0x34(%rdi),%ymm13
+ vpbroadcastd 0x38(%rdi),%ymm14
+ vpbroadcastd 0x3c(%rdi),%ymm15
+ # x0..3 on stack
+ vmovdqa %ymm0,0x00(%rsp)
+ vmovdqa %ymm1,0x20(%rsp)
+ vmovdqa %ymm2,0x40(%rsp)
+ vmovdqa %ymm3,0x60(%rsp)
+
+ vmovdqa CTRINC(%rip),%ymm1
+ vmovdqa ROT8(%rip),%ymm2
+ vmovdqa ROT16(%rip),%ymm3
+
+ # x12 += counter values 0-3
+ vpaddd %ymm1,%ymm12,%ymm12
+
+.Ldoubleround8:
+ # x0 += x4, x12 = rotl32(x12 ^ x0, 16)
+ vpaddd 0x00(%rsp),%ymm4,%ymm0
+ vmovdqa %ymm0,0x00(%rsp)
+ vpxor %ymm0,%ymm12,%ymm12
+ vpshufb %ymm3,%ymm12,%ymm12
+ # x1 += x5, x13 = rotl32(x13 ^ x1, 16)
+ vpaddd 0x20(%rsp),%ymm5,%ymm0
+ vmovdqa %ymm0,0x20(%rsp)
+ vpxor %ymm0,%ymm13,%ymm13
+ vpshufb %ymm3,%ymm13,%ymm13
+ # x2 += x6, x14 = rotl32(x14 ^ x2, 16)
+ vpaddd 0x40(%rsp),%ymm6,%ymm0
+ vmovdqa %ymm0,0x40(%rsp)
+ vpxor %ymm0,%ymm14,%ymm14
+ vpshufb %ymm3,%ymm14,%ymm14
+ # x3 += x7, x15 = rotl32(x15 ^ x3, 16)
+ vpaddd 0x60(%rsp),%ymm7,%ymm0
+ vmovdqa %ymm0,0x60(%rsp)
+ vpxor %ymm0,%ymm15,%ymm15
+ vpshufb %ymm3,%ymm15,%ymm15
+
+ # x8 += x12, x4 = rotl32(x4 ^ x8, 12)
+ vpaddd %ymm12,%ymm8,%ymm8
+ vpxor %ymm8,%ymm4,%ymm4
+ vpslld $12,%ymm4,%ymm0
+ vpsrld $20,%ymm4,%ymm4
+ vpor %ymm0,%ymm4,%ymm4
+ # x9 += x13, x5 = rotl32(x5 ^ x9, 12)
+ vpaddd %ymm13,%ymm9,%ymm9
+ vpxor %ymm9,%ymm5,%ymm5
+ vpslld $12,%ymm5,%ymm0
+ vpsrld $20,%ymm5,%ymm5
+ vpor %ymm0,%ymm5,%ymm5
+ # x10 += x14, x6 = rotl32(x6 ^ x10, 12)
+ vpaddd %ymm14,%ymm10,%ymm10
+ vpxor %ymm10,%ymm6,%ymm6
+ vpslld $12,%ymm6,%ymm0
+ vpsrld $20,%ymm6,%ymm6
+ vpor %ymm0,%ymm6,%ymm6
+ # x11 += x15, x7 = rotl32(x7 ^ x11, 12)
+ vpaddd %ymm15,%ymm11,%ymm11
+ vpxor %ymm11,%ymm7,%ymm7
+ vpslld $12,%ymm7,%ymm0
+ vpsrld $20,%ymm7,%ymm7
+ vpor %ymm0,%ymm7,%ymm7
+
+ # x0 += x4, x12 = rotl32(x12 ^ x0, 8)
+ vpaddd 0x00(%rsp),%ymm4,%ymm0
+ vmovdqa %ymm0,0x00(%rsp)
+ vpxor %ymm0,%ymm12,%ymm12
+ vpshufb %ymm2,%ymm12,%ymm12
+ # x1 += x5, x13 = rotl32(x13 ^ x1, 8)
+ vpaddd 0x20(%rsp),%ymm5,%ymm0
+ vmovdqa %ymm0,0x20(%rsp)
+ vpxor %ymm0,%ymm13,%ymm13
+ vpshufb %ymm2,%ymm13,%ymm13
+ # x2 += x6, x14 = rotl32(x14 ^ x2, 8)
+ vpaddd 0x40(%rsp),%ymm6,%ymm0
+ vmovdqa %ymm0,0x40(%rsp)
+ vpxor %ymm0,%ymm14,%ymm14
+ vpshufb %ymm2,%ymm14,%ymm14
+ # x3 += x7, x15 = rotl32(x15 ^ x3, 8)
+ vpaddd 0x60(%rsp),%ymm7,%ymm0
+ vmovdqa %ymm0,0x60(%rsp)
+ vpxor %ymm0,%ymm15,%ymm15
+ vpshufb %ymm2,%ymm15,%ymm15
+
+ # x8 += x12, x4 = rotl32(x4 ^ x8, 7)
+ vpaddd %ymm12,%ymm8,%ymm8
+ vpxor %ymm8,%ymm4,%ymm4
+ vpslld $7,%ymm4,%ymm0
+ vpsrld $25,%ymm4,%ymm4
+ vpor %ymm0,%ymm4,%ymm4
+ # x9 += x13, x5 = rotl32(x5 ^ x9, 7)
+ vpaddd %ymm13,%ymm9,%ymm9
+ vpxor %ymm9,%ymm5,%ymm5
+ vpslld $7,%ymm5,%ymm0
+ vpsrld $25,%ymm5,%ymm5
+ vpor %ymm0,%ymm5,%ymm5
+ # x10 += x14, x6 = rotl32(x6 ^ x10, 7)
+ vpaddd %ymm14,%ymm10,%ymm10
+ vpxor %ymm10,%ymm6,%ymm6
+ vpslld $7,%ymm6,%ymm0
+ vpsrld $25,%ymm6,%ymm6
+ vpor %ymm0,%ymm6,%ymm6
+ # x11 += x15, x7 = rotl32(x7 ^ x11, 7)
+ vpaddd %ymm15,%ymm11,%ymm11
+ vpxor %ymm11,%ymm7,%ymm7
+ vpslld $7,%ymm7,%ymm0
+ vpsrld $25,%ymm7,%ymm7
+ vpor %ymm0,%ymm7,%ymm7
+
+ # x0 += x5, x15 = rotl32(x15 ^ x0, 16)
+ vpaddd 0x00(%rsp),%ymm5,%ymm0
+ vmovdqa %ymm0,0x00(%rsp)
+ vpxor %ymm0,%ymm15,%ymm15
+ vpshufb %ymm3,%ymm15,%ymm15
+ # x1 += x6, x12 = rotl32(x12 ^ x1, 16)%ymm0
+ vpaddd 0x20(%rsp),%ymm6,%ymm0
+ vmovdqa %ymm0,0x20(%rsp)
+ vpxor %ymm0,%ymm12,%ymm12
+ vpshufb %ymm3,%ymm12,%ymm12
+ # x2 += x7, x13 = rotl32(x13 ^ x2, 16)
+ vpaddd 0x40(%rsp),%ymm7,%ymm0
+ vmovdqa %ymm0,0x40(%rsp)
+ vpxor %ymm0,%ymm13,%ymm13
+ vpshufb %ymm3,%ymm13,%ymm13
+ # x3 += x4, x14 = rotl32(x14 ^ x3, 16)
+ vpaddd 0x60(%rsp),%ymm4,%ymm0
+ vmovdqa %ymm0,0x60(%rsp)
+ vpxor %ymm0,%ymm14,%ymm14
+ vpshufb %ymm3,%ymm14,%ymm14
+
+ # x10 += x15, x5 = rotl32(x5 ^ x10, 12)
+ vpaddd %ymm15,%ymm10,%ymm10
+ vpxor %ymm10,%ymm5,%ymm5
+ vpslld $12,%ymm5,%ymm0
+ vpsrld $20,%ymm5,%ymm5
+ vpor %ymm0,%ymm5,%ymm5
+ # x11 += x12, x6 = rotl32(x6 ^ x11, 12)
+ vpaddd %ymm12,%ymm11,%ymm11
+ vpxor %ymm11,%ymm6,%ymm6
+ vpslld $12,%ymm6,%ymm0
+ vpsrld $20,%ymm6,%ymm6
+ vpor %ymm0,%ymm6,%ymm6
+ # x8 += x13, x7 = rotl32(x7 ^ x8, 12)
+ vpaddd %ymm13,%ymm8,%ymm8
+ vpxor %ymm8,%ymm7,%ymm7
+ vpslld $12,%ymm7,%ymm0
+ vpsrld $20,%ymm7,%ymm7
+ vpor %ymm0,%ymm7,%ymm7
+ # x9 += x14, x4 = rotl32(x4 ^ x9, 12)
+ vpaddd %ymm14,%ymm9,%ymm9
+ vpxor %ymm9,%ymm4,%ymm4
+ vpslld $12,%ymm4,%ymm0
+ vpsrld $20,%ymm4,%ymm4
+ vpor %ymm0,%ymm4,%ymm4
+
+ # x0 += x5, x15 = rotl32(x15 ^ x0, 8)
+ vpaddd 0x00(%rsp),%ymm5,%ymm0
+ vmovdqa %ymm0,0x00(%rsp)
+ vpxor %ymm0,%ymm15,%ymm15
+ vpshufb %ymm2,%ymm15,%ymm15
+ # x1 += x6, x12 = rotl32(x12 ^ x1, 8)
+ vpaddd 0x20(%rsp),%ymm6,%ymm0
+ vmovdqa %ymm0,0x20(%rsp)
+ vpxor %ymm0,%ymm12,%ymm12
+ vpshufb %ymm2,%ymm12,%ymm12
+ # x2 += x7, x13 = rotl32(x13 ^ x2, 8)
+ vpaddd 0x40(%rsp),%ymm7,%ymm0
+ vmovdqa %ymm0,0x40(%rsp)
+ vpxor %ymm0,%ymm13,%ymm13
+ vpshufb %ymm2,%ymm13,%ymm13
+ # x3 += x4, x14 = rotl32(x14 ^ x3, 8)
+ vpaddd 0x60(%rsp),%ymm4,%ymm0
+ vmovdqa %ymm0,0x60(%rsp)
+ vpxor %ymm0,%ymm14,%ymm14
+ vpshufb %ymm2,%ymm14,%ymm14
+
+ # x10 += x15, x5 = rotl32(x5 ^ x10, 7)
+ vpaddd %ymm15,%ymm10,%ymm10
+ vpxor %ymm10,%ymm5,%ymm5
+ vpslld $7,%ymm5,%ymm0
+ vpsrld $25,%ymm5,%ymm5
+ vpor %ymm0,%ymm5,%ymm5
+ # x11 += x12, x6 = rotl32(x6 ^ x11, 7)
+ vpaddd %ymm12,%ymm11,%ymm11
+ vpxor %ymm11,%ymm6,%ymm6
+ vpslld $7,%ymm6,%ymm0
+ vpsrld $25,%ymm6,%ymm6
+ vpor %ymm0,%ymm6,%ymm6
+ # x8 += x13, x7 = rotl32(x7 ^ x8, 7)
+ vpaddd %ymm13,%ymm8,%ymm8
+ vpxor %ymm8,%ymm7,%ymm7
+ vpslld $7,%ymm7,%ymm0
+ vpsrld $25,%ymm7,%ymm7
+ vpor %ymm0,%ymm7,%ymm7
+ # x9 += x14, x4 = rotl32(x4 ^ x9, 7)
+ vpaddd %ymm14,%ymm9,%ymm9
+ vpxor %ymm9,%ymm4,%ymm4
+ vpslld $7,%ymm4,%ymm0
+ vpsrld $25,%ymm4,%ymm4
+ vpor %ymm0,%ymm4,%ymm4
+
+ sub $2,%r8d
+ jnz .Ldoubleround8
+
+ # x0..15[0-3] += s[0..15]
+ vpbroadcastd 0x00(%rdi),%ymm0
+ vpaddd 0x00(%rsp),%ymm0,%ymm0
+ vmovdqa %ymm0,0x00(%rsp)
+ vpbroadcastd 0x04(%rdi),%ymm0
+ vpaddd 0x20(%rsp),%ymm0,%ymm0
+ vmovdqa %ymm0,0x20(%rsp)
+ vpbroadcastd 0x08(%rdi),%ymm0
+ vpaddd 0x40(%rsp),%ymm0,%ymm0
+ vmovdqa %ymm0,0x40(%rsp)
+ vpbroadcastd 0x0c(%rdi),%ymm0
+ vpaddd 0x60(%rsp),%ymm0,%ymm0
+ vmovdqa %ymm0,0x60(%rsp)
+ vpbroadcastd 0x10(%rdi),%ymm0
+ vpaddd %ymm0,%ymm4,%ymm4
+ vpbroadcastd 0x14(%rdi),%ymm0
+ vpaddd %ymm0,%ymm5,%ymm5
+ vpbroadcastd 0x18(%rdi),%ymm0
+ vpaddd %ymm0,%ymm6,%ymm6
+ vpbroadcastd 0x1c(%rdi),%ymm0
+ vpaddd %ymm0,%ymm7,%ymm7
+ vpbroadcastd 0x20(%rdi),%ymm0
+ vpaddd %ymm0,%ymm8,%ymm8
+ vpbroadcastd 0x24(%rdi),%ymm0
+ vpaddd %ymm0,%ymm9,%ymm9
+ vpbroadcastd 0x28(%rdi),%ymm0
+ vpaddd %ymm0,%ymm10,%ymm10
+ vpbroadcastd 0x2c(%rdi),%ymm0
+ vpaddd %ymm0,%ymm11,%ymm11
+ vpbroadcastd 0x30(%rdi),%ymm0
+ vpaddd %ymm0,%ymm12,%ymm12
+ vpbroadcastd 0x34(%rdi),%ymm0
+ vpaddd %ymm0,%ymm13,%ymm13
+ vpbroadcastd 0x38(%rdi),%ymm0
+ vpaddd %ymm0,%ymm14,%ymm14
+ vpbroadcastd 0x3c(%rdi),%ymm0
+ vpaddd %ymm0,%ymm15,%ymm15
+
+ # x12 += counter values 0-3
+ vpaddd %ymm1,%ymm12,%ymm12
+
+ # interleave 32-bit words in state n, n+1
+ vmovdqa 0x00(%rsp),%ymm0
+ vmovdqa 0x20(%rsp),%ymm1
+ vpunpckldq %ymm1,%ymm0,%ymm2
+ vpunpckhdq %ymm1,%ymm0,%ymm1
+ vmovdqa %ymm2,0x00(%rsp)
+ vmovdqa %ymm1,0x20(%rsp)
+ vmovdqa 0x40(%rsp),%ymm0
+ vmovdqa 0x60(%rsp),%ymm1
+ vpunpckldq %ymm1,%ymm0,%ymm2
+ vpunpckhdq %ymm1,%ymm0,%ymm1
+ vmovdqa %ymm2,0x40(%rsp)
+ vmovdqa %ymm1,0x60(%rsp)
+ vmovdqa %ymm4,%ymm0
+ vpunpckldq %ymm5,%ymm0,%ymm4
+ vpunpckhdq %ymm5,%ymm0,%ymm5
+ vmovdqa %ymm6,%ymm0
+ vpunpckldq %ymm7,%ymm0,%ymm6
+ vpunpckhdq %ymm7,%ymm0,%ymm7
+ vmovdqa %ymm8,%ymm0
+ vpunpckldq %ymm9,%ymm0,%ymm8
+ vpunpckhdq %ymm9,%ymm0,%ymm9
+ vmovdqa %ymm10,%ymm0
+ vpunpckldq %ymm11,%ymm0,%ymm10
+ vpunpckhdq %ymm11,%ymm0,%ymm11
+ vmovdqa %ymm12,%ymm0
+ vpunpckldq %ymm13,%ymm0,%ymm12
+ vpunpckhdq %ymm13,%ymm0,%ymm13
+ vmovdqa %ymm14,%ymm0
+ vpunpckldq %ymm15,%ymm0,%ymm14
+ vpunpckhdq %ymm15,%ymm0,%ymm15
+
+ # interleave 64-bit words in state n, n+2
+ vmovdqa 0x00(%rsp),%ymm0
+ vmovdqa 0x40(%rsp),%ymm2
+ vpunpcklqdq %ymm2,%ymm0,%ymm1
+ vpunpckhqdq %ymm2,%ymm0,%ymm2
+ vmovdqa %ymm1,0x00(%rsp)
+ vmovdqa %ymm2,0x40(%rsp)
+ vmovdqa 0x20(%rsp),%ymm0
+ vmovdqa 0x60(%rsp),%ymm2
+ vpunpcklqdq %ymm2,%ymm0,%ymm1
+ vpunpckhqdq %ymm2,%ymm0,%ymm2
+ vmovdqa %ymm1,0x20(%rsp)
+ vmovdqa %ymm2,0x60(%rsp)
+ vmovdqa %ymm4,%ymm0
+ vpunpcklqdq %ymm6,%ymm0,%ymm4
+ vpunpckhqdq %ymm6,%ymm0,%ymm6
+ vmovdqa %ymm5,%ymm0
+ vpunpcklqdq %ymm7,%ymm0,%ymm5
+ vpunpckhqdq %ymm7,%ymm0,%ymm7
+ vmovdqa %ymm8,%ymm0
+ vpunpcklqdq %ymm10,%ymm0,%ymm8
+ vpunpckhqdq %ymm10,%ymm0,%ymm10
+ vmovdqa %ymm9,%ymm0
+ vpunpcklqdq %ymm11,%ymm0,%ymm9
+ vpunpckhqdq %ymm11,%ymm0,%ymm11
+ vmovdqa %ymm12,%ymm0
+ vpunpcklqdq %ymm14,%ymm0,%ymm12
+ vpunpckhqdq %ymm14,%ymm0,%ymm14
+ vmovdqa %ymm13,%ymm0
+ vpunpcklqdq %ymm15,%ymm0,%ymm13
+ vpunpckhqdq %ymm15,%ymm0,%ymm15
+
+ # interleave 128-bit words in state n, n+4
+ # xor/write first four blocks
+ vmovdqa 0x00(%rsp),%ymm1
+ vperm2i128 $0x20,%ymm4,%ymm1,%ymm0
+ cmp $0x0020,%rax
+ jl .Lxorpart8
+ vpxor 0x0000(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x0000(%rsi)
+ vperm2i128 $0x31,%ymm4,%ymm1,%ymm4
+
+ vperm2i128 $0x20,%ymm12,%ymm8,%ymm0
+ cmp $0x0040,%rax
+ jl .Lxorpart8
+ vpxor 0x0020(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x0020(%rsi)
+ vperm2i128 $0x31,%ymm12,%ymm8,%ymm12
+
+ vmovdqa 0x40(%rsp),%ymm1
+ vperm2i128 $0x20,%ymm6,%ymm1,%ymm0
+ cmp $0x0060,%rax
+ jl .Lxorpart8
+ vpxor 0x0040(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x0040(%rsi)
+ vperm2i128 $0x31,%ymm6,%ymm1,%ymm6
+
+ vperm2i128 $0x20,%ymm14,%ymm10,%ymm0
+ cmp $0x0080,%rax
+ jl .Lxorpart8
+ vpxor 0x0060(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x0060(%rsi)
+ vperm2i128 $0x31,%ymm14,%ymm10,%ymm14
+
+ vmovdqa 0x20(%rsp),%ymm1
+ vperm2i128 $0x20,%ymm5,%ymm1,%ymm0
+ cmp $0x00a0,%rax
+ jl .Lxorpart8
+ vpxor 0x0080(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x0080(%rsi)
+ vperm2i128 $0x31,%ymm5,%ymm1,%ymm5
+
+ vperm2i128 $0x20,%ymm13,%ymm9,%ymm0
+ cmp $0x00c0,%rax
+ jl .Lxorpart8
+ vpxor 0x00a0(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x00a0(%rsi)
+ vperm2i128 $0x31,%ymm13,%ymm9,%ymm13
+
+ vmovdqa 0x60(%rsp),%ymm1
+ vperm2i128 $0x20,%ymm7,%ymm1,%ymm0
+ cmp $0x00e0,%rax
+ jl .Lxorpart8
+ vpxor 0x00c0(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x00c0(%rsi)
+ vperm2i128 $0x31,%ymm7,%ymm1,%ymm7
+
+ vperm2i128 $0x20,%ymm15,%ymm11,%ymm0
+ cmp $0x0100,%rax
+ jl .Lxorpart8
+ vpxor 0x00e0(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x00e0(%rsi)
+ vperm2i128 $0x31,%ymm15,%ymm11,%ymm15
+
+ # xor remaining blocks, write to output
+ vmovdqa %ymm4,%ymm0
+ cmp $0x0120,%rax
+ jl .Lxorpart8
+ vpxor 0x0100(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x0100(%rsi)
+
+ vmovdqa %ymm12,%ymm0
+ cmp $0x0140,%rax
+ jl .Lxorpart8
+ vpxor 0x0120(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x0120(%rsi)
+
+ vmovdqa %ymm6,%ymm0
+ cmp $0x0160,%rax
+ jl .Lxorpart8
+ vpxor 0x0140(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x0140(%rsi)
+
+ vmovdqa %ymm14,%ymm0
+ cmp $0x0180,%rax
+ jl .Lxorpart8
+ vpxor 0x0160(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x0160(%rsi)
+
+ vmovdqa %ymm5,%ymm0
+ cmp $0x01a0,%rax
+ jl .Lxorpart8
+ vpxor 0x0180(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x0180(%rsi)
+
+ vmovdqa %ymm13,%ymm0
+ cmp $0x01c0,%rax
+ jl .Lxorpart8
+ vpxor 0x01a0(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x01a0(%rsi)
+
+ vmovdqa %ymm7,%ymm0
+ cmp $0x01e0,%rax
+ jl .Lxorpart8
+ vpxor 0x01c0(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x01c0(%rsi)
+
+ vmovdqa %ymm15,%ymm0
+ cmp $0x0200,%rax
+ jl .Lxorpart8
+ vpxor 0x01e0(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x01e0(%rsi)
+
+.Ldone8:
+ vzeroupper
+ lea -8(%r10),%rsp
+ ret
+
+.Lxorpart8:
+ # xor remaining bytes from partial register into output
+ mov %rax,%r9
+ and $0x1f,%r9
+ jz .Ldone8
+ and $~0x1f,%rax
+
+ mov %rsi,%r11
+
+ lea (%rdx,%rax),%rsi
+ mov %rsp,%rdi
+ mov %r9,%rcx
+ rep movsb
+
+ vpxor 0x00(%rsp),%ymm0,%ymm0
+ vmovdqa %ymm0,0x00(%rsp)
+
+ mov %rsp,%rsi
+ lea (%r11,%rax),%rdi
+ mov %r9,%rcx
+ rep movsb
+
+ jmp .Ldone8
+
+ENDPROC(chacha_8block_xor_avx2)
diff --git a/arch/x86/crypto/chacha-avx512vl-x86_64.S b/arch/x86/crypto/chacha-avx512vl-x86_64.S
new file mode 100644
index 0000000..848f9c7
--- /dev/null
+++ b/arch/x86/crypto/chacha-avx512vl-x86_64.S
@@ -0,0 +1,836 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * ChaCha 256-bit cipher algorithm, x64 AVX-512VL functions
+ *
+ * Copyright (C) 2018 Martin Willi
+ */
+
+#include <linux/linkage.h>
+
+.section .rodata.cst32.CTR2BL, "aM", @progbits, 32
+.align 32
+CTR2BL: .octa 0x00000000000000000000000000000000
+ .octa 0x00000000000000000000000000000001
+
+.section .rodata.cst32.CTR4BL, "aM", @progbits, 32
+.align 32
+CTR4BL: .octa 0x00000000000000000000000000000002
+ .octa 0x00000000000000000000000000000003
+
+.section .rodata.cst32.CTR8BL, "aM", @progbits, 32
+.align 32
+CTR8BL: .octa 0x00000003000000020000000100000000
+ .octa 0x00000007000000060000000500000004
+
+.text
+
+ENTRY(chacha_2block_xor_avx512vl)
+ # %rdi: Input state matrix, s
+ # %rsi: up to 2 data blocks output, o
+ # %rdx: up to 2 data blocks input, i
+ # %rcx: input/output length in bytes
+ # %r8d: nrounds
+
+ # This function encrypts two ChaCha blocks by loading the state
+ # matrix twice across four AVX registers. It performs matrix operations
+ # on four words in each matrix in parallel, but requires shuffling to
+ # rearrange the words after each round.
+
+ vzeroupper
+
+ # x0..3[0-2] = s0..3
+ vbroadcasti128 0x00(%rdi),%ymm0
+ vbroadcasti128 0x10(%rdi),%ymm1
+ vbroadcasti128 0x20(%rdi),%ymm2
+ vbroadcasti128 0x30(%rdi),%ymm3
+
+ vpaddd CTR2BL(%rip),%ymm3,%ymm3
+
+ vmovdqa %ymm0,%ymm8
+ vmovdqa %ymm1,%ymm9
+ vmovdqa %ymm2,%ymm10
+ vmovdqa %ymm3,%ymm11
+
+.Ldoubleround:
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 16)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxord %ymm0,%ymm3,%ymm3
+ vprold $16,%ymm3,%ymm3
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 12)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxord %ymm2,%ymm1,%ymm1
+ vprold $12,%ymm1,%ymm1
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 8)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxord %ymm0,%ymm3,%ymm3
+ vprold $8,%ymm3,%ymm3
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 7)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxord %ymm2,%ymm1,%ymm1
+ vprold $7,%ymm1,%ymm1
+
+ # x1 = shuffle32(x1, MASK(0, 3, 2, 1))
+ vpshufd $0x39,%ymm1,%ymm1
+ # x2 = shuffle32(x2, MASK(1, 0, 3, 2))
+ vpshufd $0x4e,%ymm2,%ymm2
+ # x3 = shuffle32(x3, MASK(2, 1, 0, 3))
+ vpshufd $0x93,%ymm3,%ymm3
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 16)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxord %ymm0,%ymm3,%ymm3
+ vprold $16,%ymm3,%ymm3
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 12)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxord %ymm2,%ymm1,%ymm1
+ vprold $12,%ymm1,%ymm1
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 8)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxord %ymm0,%ymm3,%ymm3
+ vprold $8,%ymm3,%ymm3
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 7)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxord %ymm2,%ymm1,%ymm1
+ vprold $7,%ymm1,%ymm1
+
+ # x1 = shuffle32(x1, MASK(2, 1, 0, 3))
+ vpshufd $0x93,%ymm1,%ymm1
+ # x2 = shuffle32(x2, MASK(1, 0, 3, 2))
+ vpshufd $0x4e,%ymm2,%ymm2
+ # x3 = shuffle32(x3, MASK(0, 3, 2, 1))
+ vpshufd $0x39,%ymm3,%ymm3
+
+ sub $2,%r8d
+ jnz .Ldoubleround
+
+ # o0 = i0 ^ (x0 + s0)
+ vpaddd %ymm8,%ymm0,%ymm7
+ cmp $0x10,%rcx
+ jl .Lxorpart2
+ vpxord 0x00(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x00(%rsi)
+ vextracti128 $1,%ymm7,%xmm0
+ # o1 = i1 ^ (x1 + s1)
+ vpaddd %ymm9,%ymm1,%ymm7
+ cmp $0x20,%rcx
+ jl .Lxorpart2
+ vpxord 0x10(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x10(%rsi)
+ vextracti128 $1,%ymm7,%xmm1
+ # o2 = i2 ^ (x2 + s2)
+ vpaddd %ymm10,%ymm2,%ymm7
+ cmp $0x30,%rcx
+ jl .Lxorpart2
+ vpxord 0x20(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x20(%rsi)
+ vextracti128 $1,%ymm7,%xmm2
+ # o3 = i3 ^ (x3 + s3)
+ vpaddd %ymm11,%ymm3,%ymm7
+ cmp $0x40,%rcx
+ jl .Lxorpart2
+ vpxord 0x30(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x30(%rsi)
+ vextracti128 $1,%ymm7,%xmm3
+
+ # xor and write second block
+ vmovdqa %xmm0,%xmm7
+ cmp $0x50,%rcx
+ jl .Lxorpart2
+ vpxord 0x40(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x40(%rsi)
+
+ vmovdqa %xmm1,%xmm7
+ cmp $0x60,%rcx
+ jl .Lxorpart2
+ vpxord 0x50(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x50(%rsi)
+
+ vmovdqa %xmm2,%xmm7
+ cmp $0x70,%rcx
+ jl .Lxorpart2
+ vpxord 0x60(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x60(%rsi)
+
+ vmovdqa %xmm3,%xmm7
+ cmp $0x80,%rcx
+ jl .Lxorpart2
+ vpxord 0x70(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x70(%rsi)
+
+.Ldone2:
+ vzeroupper
+ ret
+
+.Lxorpart2:
+ # xor remaining bytes from partial register into output
+ mov %rcx,%rax
+ and $0xf,%rcx
+ jz .Ldone8
+ mov %rax,%r9
+ and $~0xf,%r9
+
+ mov $1,%rax
+ shld %cl,%rax,%rax
+ sub $1,%rax
+ kmovq %rax,%k1
+
+ vmovdqu8 (%rdx,%r9),%xmm1{%k1}{z}
+ vpxord %xmm7,%xmm1,%xmm1
+ vmovdqu8 %xmm1,(%rsi,%r9){%k1}
+
+ jmp .Ldone2
+
+ENDPROC(chacha_2block_xor_avx512vl)
+
+ENTRY(chacha_4block_xor_avx512vl)
+ # %rdi: Input state matrix, s
+ # %rsi: up to 4 data blocks output, o
+ # %rdx: up to 4 data blocks input, i
+ # %rcx: input/output length in bytes
+ # %r8d: nrounds
+
+ # This function encrypts four ChaCha blocks by loading the state
+ # matrix four times across eight AVX registers. It performs matrix
+ # operations on four words in two matrices in parallel, sequentially
+ # to the operations on the four words of the other two matrices. The
+ # required word shuffling has a rather high latency, we can do the
+ # arithmetic on two matrix-pairs without much slowdown.
+
+ vzeroupper
+
+ # x0..3[0-4] = s0..3
+ vbroadcasti128 0x00(%rdi),%ymm0
+ vbroadcasti128 0x10(%rdi),%ymm1
+ vbroadcasti128 0x20(%rdi),%ymm2
+ vbroadcasti128 0x30(%rdi),%ymm3
+
+ vmovdqa %ymm0,%ymm4
+ vmovdqa %ymm1,%ymm5
+ vmovdqa %ymm2,%ymm6
+ vmovdqa %ymm3,%ymm7
+
+ vpaddd CTR2BL(%rip),%ymm3,%ymm3
+ vpaddd CTR4BL(%rip),%ymm7,%ymm7
+
+ vmovdqa %ymm0,%ymm11
+ vmovdqa %ymm1,%ymm12
+ vmovdqa %ymm2,%ymm13
+ vmovdqa %ymm3,%ymm14
+ vmovdqa %ymm7,%ymm15
+
+.Ldoubleround4:
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 16)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxord %ymm0,%ymm3,%ymm3
+ vprold $16,%ymm3,%ymm3
+
+ vpaddd %ymm5,%ymm4,%ymm4
+ vpxord %ymm4,%ymm7,%ymm7
+ vprold $16,%ymm7,%ymm7
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 12)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxord %ymm2,%ymm1,%ymm1
+ vprold $12,%ymm1,%ymm1
+
+ vpaddd %ymm7,%ymm6,%ymm6
+ vpxord %ymm6,%ymm5,%ymm5
+ vprold $12,%ymm5,%ymm5
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 8)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxord %ymm0,%ymm3,%ymm3
+ vprold $8,%ymm3,%ymm3
+
+ vpaddd %ymm5,%ymm4,%ymm4
+ vpxord %ymm4,%ymm7,%ymm7
+ vprold $8,%ymm7,%ymm7
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 7)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxord %ymm2,%ymm1,%ymm1
+ vprold $7,%ymm1,%ymm1
+
+ vpaddd %ymm7,%ymm6,%ymm6
+ vpxord %ymm6,%ymm5,%ymm5
+ vprold $7,%ymm5,%ymm5
+
+ # x1 = shuffle32(x1, MASK(0, 3, 2, 1))
+ vpshufd $0x39,%ymm1,%ymm1
+ vpshufd $0x39,%ymm5,%ymm5
+ # x2 = shuffle32(x2, MASK(1, 0, 3, 2))
+ vpshufd $0x4e,%ymm2,%ymm2
+ vpshufd $0x4e,%ymm6,%ymm6
+ # x3 = shuffle32(x3, MASK(2, 1, 0, 3))
+ vpshufd $0x93,%ymm3,%ymm3
+ vpshufd $0x93,%ymm7,%ymm7
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 16)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxord %ymm0,%ymm3,%ymm3
+ vprold $16,%ymm3,%ymm3
+
+ vpaddd %ymm5,%ymm4,%ymm4
+ vpxord %ymm4,%ymm7,%ymm7
+ vprold $16,%ymm7,%ymm7
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 12)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxord %ymm2,%ymm1,%ymm1
+ vprold $12,%ymm1,%ymm1
+
+ vpaddd %ymm7,%ymm6,%ymm6
+ vpxord %ymm6,%ymm5,%ymm5
+ vprold $12,%ymm5,%ymm5
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 8)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxord %ymm0,%ymm3,%ymm3
+ vprold $8,%ymm3,%ymm3
+
+ vpaddd %ymm5,%ymm4,%ymm4
+ vpxord %ymm4,%ymm7,%ymm7
+ vprold $8,%ymm7,%ymm7
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 7)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxord %ymm2,%ymm1,%ymm1
+ vprold $7,%ymm1,%ymm1
+
+ vpaddd %ymm7,%ymm6,%ymm6
+ vpxord %ymm6,%ymm5,%ymm5
+ vprold $7,%ymm5,%ymm5
+
+ # x1 = shuffle32(x1, MASK(2, 1, 0, 3))
+ vpshufd $0x93,%ymm1,%ymm1
+ vpshufd $0x93,%ymm5,%ymm5
+ # x2 = shuffle32(x2, MASK(1, 0, 3, 2))
+ vpshufd $0x4e,%ymm2,%ymm2
+ vpshufd $0x4e,%ymm6,%ymm6
+ # x3 = shuffle32(x3, MASK(0, 3, 2, 1))
+ vpshufd $0x39,%ymm3,%ymm3
+ vpshufd $0x39,%ymm7,%ymm7
+
+ sub $2,%r8d
+ jnz .Ldoubleround4
+
+ # o0 = i0 ^ (x0 + s0), first block
+ vpaddd %ymm11,%ymm0,%ymm10
+ cmp $0x10,%rcx
+ jl .Lxorpart4
+ vpxord 0x00(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x00(%rsi)
+ vextracti128 $1,%ymm10,%xmm0
+ # o1 = i1 ^ (x1 + s1), first block
+ vpaddd %ymm12,%ymm1,%ymm10
+ cmp $0x20,%rcx
+ jl .Lxorpart4
+ vpxord 0x10(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x10(%rsi)
+ vextracti128 $1,%ymm10,%xmm1
+ # o2 = i2 ^ (x2 + s2), first block
+ vpaddd %ymm13,%ymm2,%ymm10
+ cmp $0x30,%rcx
+ jl .Lxorpart4
+ vpxord 0x20(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x20(%rsi)
+ vextracti128 $1,%ymm10,%xmm2
+ # o3 = i3 ^ (x3 + s3), first block
+ vpaddd %ymm14,%ymm3,%ymm10
+ cmp $0x40,%rcx
+ jl .Lxorpart4
+ vpxord 0x30(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x30(%rsi)
+ vextracti128 $1,%ymm10,%xmm3
+
+ # xor and write second block
+ vmovdqa %xmm0,%xmm10
+ cmp $0x50,%rcx
+ jl .Lxorpart4
+ vpxord 0x40(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x40(%rsi)
+
+ vmovdqa %xmm1,%xmm10
+ cmp $0x60,%rcx
+ jl .Lxorpart4
+ vpxord 0x50(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x50(%rsi)
+
+ vmovdqa %xmm2,%xmm10
+ cmp $0x70,%rcx
+ jl .Lxorpart4
+ vpxord 0x60(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x60(%rsi)
+
+ vmovdqa %xmm3,%xmm10
+ cmp $0x80,%rcx
+ jl .Lxorpart4
+ vpxord 0x70(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x70(%rsi)
+
+ # o0 = i0 ^ (x0 + s0), third block
+ vpaddd %ymm11,%ymm4,%ymm10
+ cmp $0x90,%rcx
+ jl .Lxorpart4
+ vpxord 0x80(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x80(%rsi)
+ vextracti128 $1,%ymm10,%xmm4
+ # o1 = i1 ^ (x1 + s1), third block
+ vpaddd %ymm12,%ymm5,%ymm10
+ cmp $0xa0,%rcx
+ jl .Lxorpart4
+ vpxord 0x90(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x90(%rsi)
+ vextracti128 $1,%ymm10,%xmm5
+ # o2 = i2 ^ (x2 + s2), third block
+ vpaddd %ymm13,%ymm6,%ymm10
+ cmp $0xb0,%rcx
+ jl .Lxorpart4
+ vpxord 0xa0(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0xa0(%rsi)
+ vextracti128 $1,%ymm10,%xmm6
+ # o3 = i3 ^ (x3 + s3), third block
+ vpaddd %ymm15,%ymm7,%ymm10
+ cmp $0xc0,%rcx
+ jl .Lxorpart4
+ vpxord 0xb0(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0xb0(%rsi)
+ vextracti128 $1,%ymm10,%xmm7
+
+ # xor and write fourth block
+ vmovdqa %xmm4,%xmm10
+ cmp $0xd0,%rcx
+ jl .Lxorpart4
+ vpxord 0xc0(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0xc0(%rsi)
+
+ vmovdqa %xmm5,%xmm10
+ cmp $0xe0,%rcx
+ jl .Lxorpart4
+ vpxord 0xd0(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0xd0(%rsi)
+
+ vmovdqa %xmm6,%xmm10
+ cmp $0xf0,%rcx
+ jl .Lxorpart4
+ vpxord 0xe0(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0xe0(%rsi)
+
+ vmovdqa %xmm7,%xmm10
+ cmp $0x100,%rcx
+ jl .Lxorpart4
+ vpxord 0xf0(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0xf0(%rsi)
+
+.Ldone4:
+ vzeroupper
+ ret
+
+.Lxorpart4:
+ # xor remaining bytes from partial register into output
+ mov %rcx,%rax
+ and $0xf,%rcx
+ jz .Ldone8
+ mov %rax,%r9
+ and $~0xf,%r9
+
+ mov $1,%rax
+ shld %cl,%rax,%rax
+ sub $1,%rax
+ kmovq %rax,%k1
+
+ vmovdqu8 (%rdx,%r9),%xmm1{%k1}{z}
+ vpxord %xmm10,%xmm1,%xmm1
+ vmovdqu8 %xmm1,(%rsi,%r9){%k1}
+
+ jmp .Ldone4
+
+ENDPROC(chacha_4block_xor_avx512vl)
+
+ENTRY(chacha_8block_xor_avx512vl)
+ # %rdi: Input state matrix, s
+ # %rsi: up to 8 data blocks output, o
+ # %rdx: up to 8 data blocks input, i
+ # %rcx: input/output length in bytes
+ # %r8d: nrounds
+
+ # This function encrypts eight consecutive ChaCha blocks by loading
+ # the state matrix in AVX registers eight times. Compared to AVX2, this
+ # mostly benefits from the new rotate instructions in VL and the
+ # additional registers.
+
+ vzeroupper
+
+ # x0..15[0-7] = s[0..15]
+ vpbroadcastd 0x00(%rdi),%ymm0
+ vpbroadcastd 0x04(%rdi),%ymm1
+ vpbroadcastd 0x08(%rdi),%ymm2
+ vpbroadcastd 0x0c(%rdi),%ymm3
+ vpbroadcastd 0x10(%rdi),%ymm4
+ vpbroadcastd 0x14(%rdi),%ymm5
+ vpbroadcastd 0x18(%rdi),%ymm6
+ vpbroadcastd 0x1c(%rdi),%ymm7
+ vpbroadcastd 0x20(%rdi),%ymm8
+ vpbroadcastd 0x24(%rdi),%ymm9
+ vpbroadcastd 0x28(%rdi),%ymm10
+ vpbroadcastd 0x2c(%rdi),%ymm11
+ vpbroadcastd 0x30(%rdi),%ymm12
+ vpbroadcastd 0x34(%rdi),%ymm13
+ vpbroadcastd 0x38(%rdi),%ymm14
+ vpbroadcastd 0x3c(%rdi),%ymm15
+
+ # x12 += counter values 0-3
+ vpaddd CTR8BL(%rip),%ymm12,%ymm12
+
+ vmovdqa64 %ymm0,%ymm16
+ vmovdqa64 %ymm1,%ymm17
+ vmovdqa64 %ymm2,%ymm18
+ vmovdqa64 %ymm3,%ymm19
+ vmovdqa64 %ymm4,%ymm20
+ vmovdqa64 %ymm5,%ymm21
+ vmovdqa64 %ymm6,%ymm22
+ vmovdqa64 %ymm7,%ymm23
+ vmovdqa64 %ymm8,%ymm24
+ vmovdqa64 %ymm9,%ymm25
+ vmovdqa64 %ymm10,%ymm26
+ vmovdqa64 %ymm11,%ymm27
+ vmovdqa64 %ymm12,%ymm28
+ vmovdqa64 %ymm13,%ymm29
+ vmovdqa64 %ymm14,%ymm30
+ vmovdqa64 %ymm15,%ymm31
+
+.Ldoubleround8:
+ # x0 += x4, x12 = rotl32(x12 ^ x0, 16)
+ vpaddd %ymm0,%ymm4,%ymm0
+ vpxord %ymm0,%ymm12,%ymm12
+ vprold $16,%ymm12,%ymm12
+ # x1 += x5, x13 = rotl32(x13 ^ x1, 16)
+ vpaddd %ymm1,%ymm5,%ymm1
+ vpxord %ymm1,%ymm13,%ymm13
+ vprold $16,%ymm13,%ymm13
+ # x2 += x6, x14 = rotl32(x14 ^ x2, 16)
+ vpaddd %ymm2,%ymm6,%ymm2
+ vpxord %ymm2,%ymm14,%ymm14
+ vprold $16,%ymm14,%ymm14
+ # x3 += x7, x15 = rotl32(x15 ^ x3, 16)
+ vpaddd %ymm3,%ymm7,%ymm3
+ vpxord %ymm3,%ymm15,%ymm15
+ vprold $16,%ymm15,%ymm15
+
+ # x8 += x12, x4 = rotl32(x4 ^ x8, 12)
+ vpaddd %ymm12,%ymm8,%ymm8
+ vpxord %ymm8,%ymm4,%ymm4
+ vprold $12,%ymm4,%ymm4
+ # x9 += x13, x5 = rotl32(x5 ^ x9, 12)
+ vpaddd %ymm13,%ymm9,%ymm9
+ vpxord %ymm9,%ymm5,%ymm5
+ vprold $12,%ymm5,%ymm5
+ # x10 += x14, x6 = rotl32(x6 ^ x10, 12)
+ vpaddd %ymm14,%ymm10,%ymm10
+ vpxord %ymm10,%ymm6,%ymm6
+ vprold $12,%ymm6,%ymm6
+ # x11 += x15, x7 = rotl32(x7 ^ x11, 12)
+ vpaddd %ymm15,%ymm11,%ymm11
+ vpxord %ymm11,%ymm7,%ymm7
+ vprold $12,%ymm7,%ymm7
+
+ # x0 += x4, x12 = rotl32(x12 ^ x0, 8)
+ vpaddd %ymm0,%ymm4,%ymm0
+ vpxord %ymm0,%ymm12,%ymm12
+ vprold $8,%ymm12,%ymm12
+ # x1 += x5, x13 = rotl32(x13 ^ x1, 8)
+ vpaddd %ymm1,%ymm5,%ymm1
+ vpxord %ymm1,%ymm13,%ymm13
+ vprold $8,%ymm13,%ymm13
+ # x2 += x6, x14 = rotl32(x14 ^ x2, 8)
+ vpaddd %ymm2,%ymm6,%ymm2
+ vpxord %ymm2,%ymm14,%ymm14
+ vprold $8,%ymm14,%ymm14
+ # x3 += x7, x15 = rotl32(x15 ^ x3, 8)
+ vpaddd %ymm3,%ymm7,%ymm3
+ vpxord %ymm3,%ymm15,%ymm15
+ vprold $8,%ymm15,%ymm15
+
+ # x8 += x12, x4 = rotl32(x4 ^ x8, 7)
+ vpaddd %ymm12,%ymm8,%ymm8
+ vpxord %ymm8,%ymm4,%ymm4
+ vprold $7,%ymm4,%ymm4
+ # x9 += x13, x5 = rotl32(x5 ^ x9, 7)
+ vpaddd %ymm13,%ymm9,%ymm9
+ vpxord %ymm9,%ymm5,%ymm5
+ vprold $7,%ymm5,%ymm5
+ # x10 += x14, x6 = rotl32(x6 ^ x10, 7)
+ vpaddd %ymm14,%ymm10,%ymm10
+ vpxord %ymm10,%ymm6,%ymm6
+ vprold $7,%ymm6,%ymm6
+ # x11 += x15, x7 = rotl32(x7 ^ x11, 7)
+ vpaddd %ymm15,%ymm11,%ymm11
+ vpxord %ymm11,%ymm7,%ymm7
+ vprold $7,%ymm7,%ymm7
+
+ # x0 += x5, x15 = rotl32(x15 ^ x0, 16)
+ vpaddd %ymm0,%ymm5,%ymm0
+ vpxord %ymm0,%ymm15,%ymm15
+ vprold $16,%ymm15,%ymm15
+ # x1 += x6, x12 = rotl32(x12 ^ x1, 16)
+ vpaddd %ymm1,%ymm6,%ymm1
+ vpxord %ymm1,%ymm12,%ymm12
+ vprold $16,%ymm12,%ymm12
+ # x2 += x7, x13 = rotl32(x13 ^ x2, 16)
+ vpaddd %ymm2,%ymm7,%ymm2
+ vpxord %ymm2,%ymm13,%ymm13
+ vprold $16,%ymm13,%ymm13
+ # x3 += x4, x14 = rotl32(x14 ^ x3, 16)
+ vpaddd %ymm3,%ymm4,%ymm3
+ vpxord %ymm3,%ymm14,%ymm14
+ vprold $16,%ymm14,%ymm14
+
+ # x10 += x15, x5 = rotl32(x5 ^ x10, 12)
+ vpaddd %ymm15,%ymm10,%ymm10
+ vpxord %ymm10,%ymm5,%ymm5
+ vprold $12,%ymm5,%ymm5
+ # x11 += x12, x6 = rotl32(x6 ^ x11, 12)
+ vpaddd %ymm12,%ymm11,%ymm11
+ vpxord %ymm11,%ymm6,%ymm6
+ vprold $12,%ymm6,%ymm6
+ # x8 += x13, x7 = rotl32(x7 ^ x8, 12)
+ vpaddd %ymm13,%ymm8,%ymm8
+ vpxord %ymm8,%ymm7,%ymm7
+ vprold $12,%ymm7,%ymm7
+ # x9 += x14, x4 = rotl32(x4 ^ x9, 12)
+ vpaddd %ymm14,%ymm9,%ymm9
+ vpxord %ymm9,%ymm4,%ymm4
+ vprold $12,%ymm4,%ymm4
+
+ # x0 += x5, x15 = rotl32(x15 ^ x0, 8)
+ vpaddd %ymm0,%ymm5,%ymm0
+ vpxord %ymm0,%ymm15,%ymm15
+ vprold $8,%ymm15,%ymm15
+ # x1 += x6, x12 = rotl32(x12 ^ x1, 8)
+ vpaddd %ymm1,%ymm6,%ymm1
+ vpxord %ymm1,%ymm12,%ymm12
+ vprold $8,%ymm12,%ymm12
+ # x2 += x7, x13 = rotl32(x13 ^ x2, 8)
+ vpaddd %ymm2,%ymm7,%ymm2
+ vpxord %ymm2,%ymm13,%ymm13
+ vprold $8,%ymm13,%ymm13
+ # x3 += x4, x14 = rotl32(x14 ^ x3, 8)
+ vpaddd %ymm3,%ymm4,%ymm3
+ vpxord %ymm3,%ymm14,%ymm14
+ vprold $8,%ymm14,%ymm14
+
+ # x10 += x15, x5 = rotl32(x5 ^ x10, 7)
+ vpaddd %ymm15,%ymm10,%ymm10
+ vpxord %ymm10,%ymm5,%ymm5
+ vprold $7,%ymm5,%ymm5
+ # x11 += x12, x6 = rotl32(x6 ^ x11, 7)
+ vpaddd %ymm12,%ymm11,%ymm11
+ vpxord %ymm11,%ymm6,%ymm6
+ vprold $7,%ymm6,%ymm6
+ # x8 += x13, x7 = rotl32(x7 ^ x8, 7)
+ vpaddd %ymm13,%ymm8,%ymm8
+ vpxord %ymm8,%ymm7,%ymm7
+ vprold $7,%ymm7,%ymm7
+ # x9 += x14, x4 = rotl32(x4 ^ x9, 7)
+ vpaddd %ymm14,%ymm9,%ymm9
+ vpxord %ymm9,%ymm4,%ymm4
+ vprold $7,%ymm4,%ymm4
+
+ sub $2,%r8d
+ jnz .Ldoubleround8
+
+ # x0..15[0-3] += s[0..15]
+ vpaddd %ymm16,%ymm0,%ymm0
+ vpaddd %ymm17,%ymm1,%ymm1
+ vpaddd %ymm18,%ymm2,%ymm2
+ vpaddd %ymm19,%ymm3,%ymm3
+ vpaddd %ymm20,%ymm4,%ymm4
+ vpaddd %ymm21,%ymm5,%ymm5
+ vpaddd %ymm22,%ymm6,%ymm6
+ vpaddd %ymm23,%ymm7,%ymm7
+ vpaddd %ymm24,%ymm8,%ymm8
+ vpaddd %ymm25,%ymm9,%ymm9
+ vpaddd %ymm26,%ymm10,%ymm10
+ vpaddd %ymm27,%ymm11,%ymm11
+ vpaddd %ymm28,%ymm12,%ymm12
+ vpaddd %ymm29,%ymm13,%ymm13
+ vpaddd %ymm30,%ymm14,%ymm14
+ vpaddd %ymm31,%ymm15,%ymm15
+
+ # interleave 32-bit words in state n, n+1
+ vpunpckldq %ymm1,%ymm0,%ymm16
+ vpunpckhdq %ymm1,%ymm0,%ymm17
+ vpunpckldq %ymm3,%ymm2,%ymm18
+ vpunpckhdq %ymm3,%ymm2,%ymm19
+ vpunpckldq %ymm5,%ymm4,%ymm20
+ vpunpckhdq %ymm5,%ymm4,%ymm21
+ vpunpckldq %ymm7,%ymm6,%ymm22
+ vpunpckhdq %ymm7,%ymm6,%ymm23
+ vpunpckldq %ymm9,%ymm8,%ymm24
+ vpunpckhdq %ymm9,%ymm8,%ymm25
+ vpunpckldq %ymm11,%ymm10,%ymm26
+ vpunpckhdq %ymm11,%ymm10,%ymm27
+ vpunpckldq %ymm13,%ymm12,%ymm28
+ vpunpckhdq %ymm13,%ymm12,%ymm29
+ vpunpckldq %ymm15,%ymm14,%ymm30
+ vpunpckhdq %ymm15,%ymm14,%ymm31
+
+ # interleave 64-bit words in state n, n+2
+ vpunpcklqdq %ymm18,%ymm16,%ymm0
+ vpunpcklqdq %ymm19,%ymm17,%ymm1
+ vpunpckhqdq %ymm18,%ymm16,%ymm2
+ vpunpckhqdq %ymm19,%ymm17,%ymm3
+ vpunpcklqdq %ymm22,%ymm20,%ymm4
+ vpunpcklqdq %ymm23,%ymm21,%ymm5
+ vpunpckhqdq %ymm22,%ymm20,%ymm6
+ vpunpckhqdq %ymm23,%ymm21,%ymm7
+ vpunpcklqdq %ymm26,%ymm24,%ymm8
+ vpunpcklqdq %ymm27,%ymm25,%ymm9
+ vpunpckhqdq %ymm26,%ymm24,%ymm10
+ vpunpckhqdq %ymm27,%ymm25,%ymm11
+ vpunpcklqdq %ymm30,%ymm28,%ymm12
+ vpunpcklqdq %ymm31,%ymm29,%ymm13
+ vpunpckhqdq %ymm30,%ymm28,%ymm14
+ vpunpckhqdq %ymm31,%ymm29,%ymm15
+
+ # interleave 128-bit words in state n, n+4
+ # xor/write first four blocks
+ vmovdqa64 %ymm0,%ymm16
+ vperm2i128 $0x20,%ymm4,%ymm0,%ymm0
+ cmp $0x0020,%rcx
+ jl .Lxorpart8
+ vpxord 0x0000(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x0000(%rsi)
+ vmovdqa64 %ymm16,%ymm0
+ vperm2i128 $0x31,%ymm4,%ymm0,%ymm4
+
+ vperm2i128 $0x20,%ymm12,%ymm8,%ymm0
+ cmp $0x0040,%rcx
+ jl .Lxorpart8
+ vpxord 0x0020(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x0020(%rsi)
+ vperm2i128 $0x31,%ymm12,%ymm8,%ymm12
+
+ vperm2i128 $0x20,%ymm6,%ymm2,%ymm0
+ cmp $0x0060,%rcx
+ jl .Lxorpart8
+ vpxord 0x0040(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x0040(%rsi)
+ vperm2i128 $0x31,%ymm6,%ymm2,%ymm6
+
+ vperm2i128 $0x20,%ymm14,%ymm10,%ymm0
+ cmp $0x0080,%rcx
+ jl .Lxorpart8
+ vpxord 0x0060(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x0060(%rsi)
+ vperm2i128 $0x31,%ymm14,%ymm10,%ymm14
+
+ vperm2i128 $0x20,%ymm5,%ymm1,%ymm0
+ cmp $0x00a0,%rcx
+ jl .Lxorpart8
+ vpxord 0x0080(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x0080(%rsi)
+ vperm2i128 $0x31,%ymm5,%ymm1,%ymm5
+
+ vperm2i128 $0x20,%ymm13,%ymm9,%ymm0
+ cmp $0x00c0,%rcx
+ jl .Lxorpart8
+ vpxord 0x00a0(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x00a0(%rsi)
+ vperm2i128 $0x31,%ymm13,%ymm9,%ymm13
+
+ vperm2i128 $0x20,%ymm7,%ymm3,%ymm0
+ cmp $0x00e0,%rcx
+ jl .Lxorpart8
+ vpxord 0x00c0(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x00c0(%rsi)
+ vperm2i128 $0x31,%ymm7,%ymm3,%ymm7
+
+ vperm2i128 $0x20,%ymm15,%ymm11,%ymm0
+ cmp $0x0100,%rcx
+ jl .Lxorpart8
+ vpxord 0x00e0(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x00e0(%rsi)
+ vperm2i128 $0x31,%ymm15,%ymm11,%ymm15
+
+ # xor remaining blocks, write to output
+ vmovdqa64 %ymm4,%ymm0
+ cmp $0x0120,%rcx
+ jl .Lxorpart8
+ vpxord 0x0100(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x0100(%rsi)
+
+ vmovdqa64 %ymm12,%ymm0
+ cmp $0x0140,%rcx
+ jl .Lxorpart8
+ vpxord 0x0120(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x0120(%rsi)
+
+ vmovdqa64 %ymm6,%ymm0
+ cmp $0x0160,%rcx
+ jl .Lxorpart8
+ vpxord 0x0140(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x0140(%rsi)
+
+ vmovdqa64 %ymm14,%ymm0
+ cmp $0x0180,%rcx
+ jl .Lxorpart8
+ vpxord 0x0160(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x0160(%rsi)
+
+ vmovdqa64 %ymm5,%ymm0
+ cmp $0x01a0,%rcx
+ jl .Lxorpart8
+ vpxord 0x0180(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x0180(%rsi)
+
+ vmovdqa64 %ymm13,%ymm0
+ cmp $0x01c0,%rcx
+ jl .Lxorpart8
+ vpxord 0x01a0(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x01a0(%rsi)
+
+ vmovdqa64 %ymm7,%ymm0
+ cmp $0x01e0,%rcx
+ jl .Lxorpart8
+ vpxord 0x01c0(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x01c0(%rsi)
+
+ vmovdqa64 %ymm15,%ymm0
+ cmp $0x0200,%rcx
+ jl .Lxorpart8
+ vpxord 0x01e0(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x01e0(%rsi)
+
+.Ldone8:
+ vzeroupper
+ ret
+
+.Lxorpart8:
+ # xor remaining bytes from partial register into output
+ mov %rcx,%rax
+ and $0x1f,%rcx
+ jz .Ldone8
+ mov %rax,%r9
+ and $~0x1f,%r9
+
+ mov $1,%rax
+ shld %cl,%rax,%rax
+ sub $1,%rax
+ kmovq %rax,%k1
+
+ vmovdqu8 (%rdx,%r9),%ymm1{%k1}{z}
+ vpxord %ymm0,%ymm1,%ymm1
+ vmovdqu8 %ymm1,(%rsi,%r9){%k1}
+
+ jmp .Ldone8
+
+ENDPROC(chacha_8block_xor_avx512vl)
diff --git a/arch/x86/crypto/chacha20-ssse3-x86_64.S b/arch/x86/crypto/chacha-ssse3-x86_64.S
similarity index 76%
rename from arch/x86/crypto/chacha20-ssse3-x86_64.S
rename to arch/x86/crypto/chacha-ssse3-x86_64.S
index 512a2b5..e5fd7b2 100644
--- a/arch/x86/crypto/chacha20-ssse3-x86_64.S
+++ b/arch/x86/crypto/chacha-ssse3-x86_64.S
@@ -1,5 +1,5 @@
/*
- * ChaCha20 256-bit cipher algorithm, RFC7539, x64 SSSE3 functions
+ * ChaCha 256-bit cipher algorithm, x64 SSSE3 functions
*
* Copyright (C) 2015 Martin Willi
*
@@ -10,6 +10,7 @@
*/
#include <linux/linkage.h>
+#include <asm/frame.h>
.section .rodata.cst16.ROT8, "aM", @progbits, 16
.align 16
@@ -23,35 +24,25 @@
.text
-ENTRY(chacha20_block_xor_ssse3)
- # %rdi: Input state matrix, s
- # %rsi: 1 data block output, o
- # %rdx: 1 data block input, i
-
- # This function encrypts one ChaCha20 block by loading the state matrix
- # in four SSE registers. It performs matrix operation on four words in
- # parallel, but requireds shuffling to rearrange the words after each
- # round. 8/16-bit word rotation is done with the slightly better
- # performing SSSE3 byte shuffling, 7/12-bit word rotation uses
- # traditional shift+OR.
-
- # x0..3 = s0..3
- movdqa 0x00(%rdi),%xmm0
- movdqa 0x10(%rdi),%xmm1
- movdqa 0x20(%rdi),%xmm2
- movdqa 0x30(%rdi),%xmm3
- movdqa %xmm0,%xmm8
- movdqa %xmm1,%xmm9
- movdqa %xmm2,%xmm10
- movdqa %xmm3,%xmm11
+/*
+ * chacha_permute - permute one block
+ *
+ * Permute one 64-byte block where the state matrix is in %xmm0-%xmm3. This
+ * function performs matrix operations on four words in parallel, but requires
+ * shuffling to rearrange the words after each round. 8/16-bit word rotation is
+ * done with the slightly better performing SSSE3 byte shuffling, 7/12-bit word
+ * rotation uses traditional shift+OR.
+ *
+ * The round count is given in %r8d.
+ *
+ * Clobbers: %r8d, %xmm4-%xmm7
+ */
+chacha_permute:
movdqa ROT8(%rip),%xmm4
movdqa ROT16(%rip),%xmm5
- mov $10,%ecx
-
.Ldoubleround:
-
# x0 += x1, x3 = rotl32(x3 ^ x0, 16)
paddd %xmm1,%xmm0
pxor %xmm0,%xmm3
@@ -118,39 +109,129 @@
# x3 = shuffle32(x3, MASK(0, 3, 2, 1))
pshufd $0x39,%xmm3,%xmm3
- dec %ecx
+ sub $2,%r8d
jnz .Ldoubleround
+ ret
+ENDPROC(chacha_permute)
+
+ENTRY(chacha_block_xor_ssse3)
+ # %rdi: Input state matrix, s
+ # %rsi: up to 1 data block output, o
+ # %rdx: up to 1 data block input, i
+ # %rcx: input/output length in bytes
+ # %r8d: nrounds
+ FRAME_BEGIN
+
+ # x0..3 = s0..3
+ movdqu 0x00(%rdi),%xmm0
+ movdqu 0x10(%rdi),%xmm1
+ movdqu 0x20(%rdi),%xmm2
+ movdqu 0x30(%rdi),%xmm3
+ movdqa %xmm0,%xmm8
+ movdqa %xmm1,%xmm9
+ movdqa %xmm2,%xmm10
+ movdqa %xmm3,%xmm11
+
+ mov %rcx,%rax
+ call chacha_permute
+
# o0 = i0 ^ (x0 + s0)
- movdqu 0x00(%rdx),%xmm4
paddd %xmm8,%xmm0
+ cmp $0x10,%rax
+ jl .Lxorpart
+ movdqu 0x00(%rdx),%xmm4
pxor %xmm4,%xmm0
movdqu %xmm0,0x00(%rsi)
# o1 = i1 ^ (x1 + s1)
- movdqu 0x10(%rdx),%xmm5
paddd %xmm9,%xmm1
- pxor %xmm5,%xmm1
- movdqu %xmm1,0x10(%rsi)
+ movdqa %xmm1,%xmm0
+ cmp $0x20,%rax
+ jl .Lxorpart
+ movdqu 0x10(%rdx),%xmm0
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0x10(%rsi)
# o2 = i2 ^ (x2 + s2)
- movdqu 0x20(%rdx),%xmm6
paddd %xmm10,%xmm2
- pxor %xmm6,%xmm2
- movdqu %xmm2,0x20(%rsi)
+ movdqa %xmm2,%xmm0
+ cmp $0x30,%rax
+ jl .Lxorpart
+ movdqu 0x20(%rdx),%xmm0
+ pxor %xmm2,%xmm0
+ movdqu %xmm0,0x20(%rsi)
# o3 = i3 ^ (x3 + s3)
- movdqu 0x30(%rdx),%xmm7
paddd %xmm11,%xmm3
- pxor %xmm7,%xmm3
- movdqu %xmm3,0x30(%rsi)
+ movdqa %xmm3,%xmm0
+ cmp $0x40,%rax
+ jl .Lxorpart
+ movdqu 0x30(%rdx),%xmm0
+ pxor %xmm3,%xmm0
+ movdqu %xmm0,0x30(%rsi)
+.Ldone:
+ FRAME_END
ret
-ENDPROC(chacha20_block_xor_ssse3)
-ENTRY(chacha20_4block_xor_ssse3)
+.Lxorpart:
+ # xor remaining bytes from partial register into output
+ mov %rax,%r9
+ and $0x0f,%r9
+ jz .Ldone
+ and $~0x0f,%rax
+
+ mov %rsi,%r11
+
+ lea 8(%rsp),%r10
+ sub $0x10,%rsp
+ and $~31,%rsp
+
+ lea (%rdx,%rax),%rsi
+ mov %rsp,%rdi
+ mov %r9,%rcx
+ rep movsb
+
+ pxor 0x00(%rsp),%xmm0
+ movdqa %xmm0,0x00(%rsp)
+
+ mov %rsp,%rsi
+ lea (%r11,%rax),%rdi
+ mov %r9,%rcx
+ rep movsb
+
+ lea -8(%r10),%rsp
+ jmp .Ldone
+
+ENDPROC(chacha_block_xor_ssse3)
+
+ENTRY(hchacha_block_ssse3)
# %rdi: Input state matrix, s
- # %rsi: 4 data blocks output, o
- # %rdx: 4 data blocks input, i
+ # %rsi: output (8 32-bit words)
+ # %edx: nrounds
+ FRAME_BEGIN
- # This function encrypts four consecutive ChaCha20 blocks by loading the
+ movdqu 0x00(%rdi),%xmm0
+ movdqu 0x10(%rdi),%xmm1
+ movdqu 0x20(%rdi),%xmm2
+ movdqu 0x30(%rdi),%xmm3
+
+ mov %edx,%r8d
+ call chacha_permute
+
+ movdqu %xmm0,0x00(%rsi)
+ movdqu %xmm3,0x10(%rsi)
+
+ FRAME_END
+ ret
+ENDPROC(hchacha_block_ssse3)
+
+ENTRY(chacha_4block_xor_ssse3)
+ # %rdi: Input state matrix, s
+ # %rsi: up to 4 data blocks output, o
+ # %rdx: up to 4 data blocks input, i
+ # %rcx: input/output length in bytes
+ # %r8d: nrounds
+
+ # This function encrypts four consecutive ChaCha blocks by loading the
# the state matrix in SSE registers four times. As we need some scratch
# registers, we save the first four registers on the stack. The
# algorithm performs each operation on the corresponding word of each
@@ -163,6 +244,7 @@
lea 8(%rsp),%r10
sub $0x80,%rsp
and $~63,%rsp
+ mov %rcx,%rax
# x0..15[0-3] = s0..3[0..3]
movq 0x00(%rdi),%xmm1
@@ -202,8 +284,6 @@
# x12 += counter values 0-3
paddd %xmm1,%xmm12
- mov $10,%ecx
-
.Ldoubleround4:
# x0 += x4, x12 = rotl32(x12 ^ x0, 16)
movdqa 0x00(%rsp),%xmm0
@@ -421,7 +501,7 @@
psrld $25,%xmm4
por %xmm0,%xmm4
- dec %ecx
+ sub $2,%r8d
jnz .Ldoubleround4
# x0[0-3] += s0[0]
@@ -573,58 +653,143 @@
# xor with corresponding input, write to output
movdqa 0x00(%rsp),%xmm0
+ cmp $0x10,%rax
+ jl .Lxorpart4
movdqu 0x00(%rdx),%xmm1
pxor %xmm1,%xmm0
movdqu %xmm0,0x00(%rsi)
- movdqa 0x10(%rsp),%xmm0
- movdqu 0x80(%rdx),%xmm1
+
+ movdqu %xmm4,%xmm0
+ cmp $0x20,%rax
+ jl .Lxorpart4
+ movdqu 0x10(%rdx),%xmm1
pxor %xmm1,%xmm0
- movdqu %xmm0,0x80(%rsi)
+ movdqu %xmm0,0x10(%rsi)
+
+ movdqu %xmm8,%xmm0
+ cmp $0x30,%rax
+ jl .Lxorpart4
+ movdqu 0x20(%rdx),%xmm1
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0x20(%rsi)
+
+ movdqu %xmm12,%xmm0
+ cmp $0x40,%rax
+ jl .Lxorpart4
+ movdqu 0x30(%rdx),%xmm1
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0x30(%rsi)
+
movdqa 0x20(%rsp),%xmm0
+ cmp $0x50,%rax
+ jl .Lxorpart4
movdqu 0x40(%rdx),%xmm1
pxor %xmm1,%xmm0
movdqu %xmm0,0x40(%rsi)
+
+ movdqu %xmm6,%xmm0
+ cmp $0x60,%rax
+ jl .Lxorpart4
+ movdqu 0x50(%rdx),%xmm1
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0x50(%rsi)
+
+ movdqu %xmm10,%xmm0
+ cmp $0x70,%rax
+ jl .Lxorpart4
+ movdqu 0x60(%rdx),%xmm1
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0x60(%rsi)
+
+ movdqu %xmm14,%xmm0
+ cmp $0x80,%rax
+ jl .Lxorpart4
+ movdqu 0x70(%rdx),%xmm1
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0x70(%rsi)
+
+ movdqa 0x10(%rsp),%xmm0
+ cmp $0x90,%rax
+ jl .Lxorpart4
+ movdqu 0x80(%rdx),%xmm1
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0x80(%rsi)
+
+ movdqu %xmm5,%xmm0
+ cmp $0xa0,%rax
+ jl .Lxorpart4
+ movdqu 0x90(%rdx),%xmm1
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0x90(%rsi)
+
+ movdqu %xmm9,%xmm0
+ cmp $0xb0,%rax
+ jl .Lxorpart4
+ movdqu 0xa0(%rdx),%xmm1
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0xa0(%rsi)
+
+ movdqu %xmm13,%xmm0
+ cmp $0xc0,%rax
+ jl .Lxorpart4
+ movdqu 0xb0(%rdx),%xmm1
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0xb0(%rsi)
+
movdqa 0x30(%rsp),%xmm0
+ cmp $0xd0,%rax
+ jl .Lxorpart4
movdqu 0xc0(%rdx),%xmm1
pxor %xmm1,%xmm0
movdqu %xmm0,0xc0(%rsi)
- movdqu 0x10(%rdx),%xmm1
- pxor %xmm1,%xmm4
- movdqu %xmm4,0x10(%rsi)
- movdqu 0x90(%rdx),%xmm1
- pxor %xmm1,%xmm5
- movdqu %xmm5,0x90(%rsi)
- movdqu 0x50(%rdx),%xmm1
- pxor %xmm1,%xmm6
- movdqu %xmm6,0x50(%rsi)
- movdqu 0xd0(%rdx),%xmm1
- pxor %xmm1,%xmm7
- movdqu %xmm7,0xd0(%rsi)
- movdqu 0x20(%rdx),%xmm1
- pxor %xmm1,%xmm8
- movdqu %xmm8,0x20(%rsi)
- movdqu 0xa0(%rdx),%xmm1
- pxor %xmm1,%xmm9
- movdqu %xmm9,0xa0(%rsi)
- movdqu 0x60(%rdx),%xmm1
- pxor %xmm1,%xmm10
- movdqu %xmm10,0x60(%rsi)
- movdqu 0xe0(%rdx),%xmm1
- pxor %xmm1,%xmm11
- movdqu %xmm11,0xe0(%rsi)
- movdqu 0x30(%rdx),%xmm1
- pxor %xmm1,%xmm12
- movdqu %xmm12,0x30(%rsi)
- movdqu 0xb0(%rdx),%xmm1
- pxor %xmm1,%xmm13
- movdqu %xmm13,0xb0(%rsi)
- movdqu 0x70(%rdx),%xmm1
- pxor %xmm1,%xmm14
- movdqu %xmm14,0x70(%rsi)
- movdqu 0xf0(%rdx),%xmm1
- pxor %xmm1,%xmm15
- movdqu %xmm15,0xf0(%rsi)
+ movdqu %xmm7,%xmm0
+ cmp $0xe0,%rax
+ jl .Lxorpart4
+ movdqu 0xd0(%rdx),%xmm1
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0xd0(%rsi)
+
+ movdqu %xmm11,%xmm0
+ cmp $0xf0,%rax
+ jl .Lxorpart4
+ movdqu 0xe0(%rdx),%xmm1
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0xe0(%rsi)
+
+ movdqu %xmm15,%xmm0
+ cmp $0x100,%rax
+ jl .Lxorpart4
+ movdqu 0xf0(%rdx),%xmm1
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0xf0(%rsi)
+
+.Ldone4:
lea -8(%r10),%rsp
ret
-ENDPROC(chacha20_4block_xor_ssse3)
+
+.Lxorpart4:
+ # xor remaining bytes from partial register into output
+ mov %rax,%r9
+ and $0x0f,%r9
+ jz .Ldone4
+ and $~0x0f,%rax
+
+ mov %rsi,%r11
+
+ lea (%rdx,%rax),%rsi
+ mov %rsp,%rdi
+ mov %r9,%rcx
+ rep movsb
+
+ pxor 0x00(%rsp),%xmm0
+ movdqa %xmm0,0x00(%rsp)
+
+ mov %rsp,%rsi
+ lea (%r11,%rax),%rdi
+ mov %r9,%rcx
+ rep movsb
+
+ jmp .Ldone4
+
+ENDPROC(chacha_4block_xor_ssse3)
diff --git a/arch/x86/crypto/chacha20-avx2-x86_64.S b/arch/x86/crypto/chacha20-avx2-x86_64.S
deleted file mode 100644
index f3cd26f..0000000
--- a/arch/x86/crypto/chacha20-avx2-x86_64.S
+++ /dev/null
@@ -1,448 +0,0 @@
-/*
- * ChaCha20 256-bit cipher algorithm, RFC7539, x64 AVX2 functions
- *
- * Copyright (C) 2015 Martin Willi
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#include <linux/linkage.h>
-
-.section .rodata.cst32.ROT8, "aM", @progbits, 32
-.align 32
-ROT8: .octa 0x0e0d0c0f0a09080b0605040702010003
- .octa 0x0e0d0c0f0a09080b0605040702010003
-
-.section .rodata.cst32.ROT16, "aM", @progbits, 32
-.align 32
-ROT16: .octa 0x0d0c0f0e09080b0a0504070601000302
- .octa 0x0d0c0f0e09080b0a0504070601000302
-
-.section .rodata.cst32.CTRINC, "aM", @progbits, 32
-.align 32
-CTRINC: .octa 0x00000003000000020000000100000000
- .octa 0x00000007000000060000000500000004
-
-.text
-
-ENTRY(chacha20_8block_xor_avx2)
- # %rdi: Input state matrix, s
- # %rsi: 8 data blocks output, o
- # %rdx: 8 data blocks input, i
-
- # This function encrypts eight consecutive ChaCha20 blocks by loading
- # the state matrix in AVX registers eight times. As we need some
- # scratch registers, we save the first four registers on the stack. The
- # algorithm performs each operation on the corresponding word of each
- # state matrix, hence requires no word shuffling. For final XORing step
- # we transpose the matrix by interleaving 32-, 64- and then 128-bit
- # words, which allows us to do XOR in AVX registers. 8/16-bit word
- # rotation is done with the slightly better performing byte shuffling,
- # 7/12-bit word rotation uses traditional shift+OR.
-
- vzeroupper
- # 4 * 32 byte stack, 32-byte aligned
- lea 8(%rsp),%r10
- and $~31, %rsp
- sub $0x80, %rsp
-
- # x0..15[0-7] = s[0..15]
- vpbroadcastd 0x00(%rdi),%ymm0
- vpbroadcastd 0x04(%rdi),%ymm1
- vpbroadcastd 0x08(%rdi),%ymm2
- vpbroadcastd 0x0c(%rdi),%ymm3
- vpbroadcastd 0x10(%rdi),%ymm4
- vpbroadcastd 0x14(%rdi),%ymm5
- vpbroadcastd 0x18(%rdi),%ymm6
- vpbroadcastd 0x1c(%rdi),%ymm7
- vpbroadcastd 0x20(%rdi),%ymm8
- vpbroadcastd 0x24(%rdi),%ymm9
- vpbroadcastd 0x28(%rdi),%ymm10
- vpbroadcastd 0x2c(%rdi),%ymm11
- vpbroadcastd 0x30(%rdi),%ymm12
- vpbroadcastd 0x34(%rdi),%ymm13
- vpbroadcastd 0x38(%rdi),%ymm14
- vpbroadcastd 0x3c(%rdi),%ymm15
- # x0..3 on stack
- vmovdqa %ymm0,0x00(%rsp)
- vmovdqa %ymm1,0x20(%rsp)
- vmovdqa %ymm2,0x40(%rsp)
- vmovdqa %ymm3,0x60(%rsp)
-
- vmovdqa CTRINC(%rip),%ymm1
- vmovdqa ROT8(%rip),%ymm2
- vmovdqa ROT16(%rip),%ymm3
-
- # x12 += counter values 0-3
- vpaddd %ymm1,%ymm12,%ymm12
-
- mov $10,%ecx
-
-.Ldoubleround8:
- # x0 += x4, x12 = rotl32(x12 ^ x0, 16)
- vpaddd 0x00(%rsp),%ymm4,%ymm0
- vmovdqa %ymm0,0x00(%rsp)
- vpxor %ymm0,%ymm12,%ymm12
- vpshufb %ymm3,%ymm12,%ymm12
- # x1 += x5, x13 = rotl32(x13 ^ x1, 16)
- vpaddd 0x20(%rsp),%ymm5,%ymm0
- vmovdqa %ymm0,0x20(%rsp)
- vpxor %ymm0,%ymm13,%ymm13
- vpshufb %ymm3,%ymm13,%ymm13
- # x2 += x6, x14 = rotl32(x14 ^ x2, 16)
- vpaddd 0x40(%rsp),%ymm6,%ymm0
- vmovdqa %ymm0,0x40(%rsp)
- vpxor %ymm0,%ymm14,%ymm14
- vpshufb %ymm3,%ymm14,%ymm14
- # x3 += x7, x15 = rotl32(x15 ^ x3, 16)
- vpaddd 0x60(%rsp),%ymm7,%ymm0
- vmovdqa %ymm0,0x60(%rsp)
- vpxor %ymm0,%ymm15,%ymm15
- vpshufb %ymm3,%ymm15,%ymm15
-
- # x8 += x12, x4 = rotl32(x4 ^ x8, 12)
- vpaddd %ymm12,%ymm8,%ymm8
- vpxor %ymm8,%ymm4,%ymm4
- vpslld $12,%ymm4,%ymm0
- vpsrld $20,%ymm4,%ymm4
- vpor %ymm0,%ymm4,%ymm4
- # x9 += x13, x5 = rotl32(x5 ^ x9, 12)
- vpaddd %ymm13,%ymm9,%ymm9
- vpxor %ymm9,%ymm5,%ymm5
- vpslld $12,%ymm5,%ymm0
- vpsrld $20,%ymm5,%ymm5
- vpor %ymm0,%ymm5,%ymm5
- # x10 += x14, x6 = rotl32(x6 ^ x10, 12)
- vpaddd %ymm14,%ymm10,%ymm10
- vpxor %ymm10,%ymm6,%ymm6
- vpslld $12,%ymm6,%ymm0
- vpsrld $20,%ymm6,%ymm6
- vpor %ymm0,%ymm6,%ymm6
- # x11 += x15, x7 = rotl32(x7 ^ x11, 12)
- vpaddd %ymm15,%ymm11,%ymm11
- vpxor %ymm11,%ymm7,%ymm7
- vpslld $12,%ymm7,%ymm0
- vpsrld $20,%ymm7,%ymm7
- vpor %ymm0,%ymm7,%ymm7
-
- # x0 += x4, x12 = rotl32(x12 ^ x0, 8)
- vpaddd 0x00(%rsp),%ymm4,%ymm0
- vmovdqa %ymm0,0x00(%rsp)
- vpxor %ymm0,%ymm12,%ymm12
- vpshufb %ymm2,%ymm12,%ymm12
- # x1 += x5, x13 = rotl32(x13 ^ x1, 8)
- vpaddd 0x20(%rsp),%ymm5,%ymm0
- vmovdqa %ymm0,0x20(%rsp)
- vpxor %ymm0,%ymm13,%ymm13
- vpshufb %ymm2,%ymm13,%ymm13
- # x2 += x6, x14 = rotl32(x14 ^ x2, 8)
- vpaddd 0x40(%rsp),%ymm6,%ymm0
- vmovdqa %ymm0,0x40(%rsp)
- vpxor %ymm0,%ymm14,%ymm14
- vpshufb %ymm2,%ymm14,%ymm14
- # x3 += x7, x15 = rotl32(x15 ^ x3, 8)
- vpaddd 0x60(%rsp),%ymm7,%ymm0
- vmovdqa %ymm0,0x60(%rsp)
- vpxor %ymm0,%ymm15,%ymm15
- vpshufb %ymm2,%ymm15,%ymm15
-
- # x8 += x12, x4 = rotl32(x4 ^ x8, 7)
- vpaddd %ymm12,%ymm8,%ymm8
- vpxor %ymm8,%ymm4,%ymm4
- vpslld $7,%ymm4,%ymm0
- vpsrld $25,%ymm4,%ymm4
- vpor %ymm0,%ymm4,%ymm4
- # x9 += x13, x5 = rotl32(x5 ^ x9, 7)
- vpaddd %ymm13,%ymm9,%ymm9
- vpxor %ymm9,%ymm5,%ymm5
- vpslld $7,%ymm5,%ymm0
- vpsrld $25,%ymm5,%ymm5
- vpor %ymm0,%ymm5,%ymm5
- # x10 += x14, x6 = rotl32(x6 ^ x10, 7)
- vpaddd %ymm14,%ymm10,%ymm10
- vpxor %ymm10,%ymm6,%ymm6
- vpslld $7,%ymm6,%ymm0
- vpsrld $25,%ymm6,%ymm6
- vpor %ymm0,%ymm6,%ymm6
- # x11 += x15, x7 = rotl32(x7 ^ x11, 7)
- vpaddd %ymm15,%ymm11,%ymm11
- vpxor %ymm11,%ymm7,%ymm7
- vpslld $7,%ymm7,%ymm0
- vpsrld $25,%ymm7,%ymm7
- vpor %ymm0,%ymm7,%ymm7
-
- # x0 += x5, x15 = rotl32(x15 ^ x0, 16)
- vpaddd 0x00(%rsp),%ymm5,%ymm0
- vmovdqa %ymm0,0x00(%rsp)
- vpxor %ymm0,%ymm15,%ymm15
- vpshufb %ymm3,%ymm15,%ymm15
- # x1 += x6, x12 = rotl32(x12 ^ x1, 16)%ymm0
- vpaddd 0x20(%rsp),%ymm6,%ymm0
- vmovdqa %ymm0,0x20(%rsp)
- vpxor %ymm0,%ymm12,%ymm12
- vpshufb %ymm3,%ymm12,%ymm12
- # x2 += x7, x13 = rotl32(x13 ^ x2, 16)
- vpaddd 0x40(%rsp),%ymm7,%ymm0
- vmovdqa %ymm0,0x40(%rsp)
- vpxor %ymm0,%ymm13,%ymm13
- vpshufb %ymm3,%ymm13,%ymm13
- # x3 += x4, x14 = rotl32(x14 ^ x3, 16)
- vpaddd 0x60(%rsp),%ymm4,%ymm0
- vmovdqa %ymm0,0x60(%rsp)
- vpxor %ymm0,%ymm14,%ymm14
- vpshufb %ymm3,%ymm14,%ymm14
-
- # x10 += x15, x5 = rotl32(x5 ^ x10, 12)
- vpaddd %ymm15,%ymm10,%ymm10
- vpxor %ymm10,%ymm5,%ymm5
- vpslld $12,%ymm5,%ymm0
- vpsrld $20,%ymm5,%ymm5
- vpor %ymm0,%ymm5,%ymm5
- # x11 += x12, x6 = rotl32(x6 ^ x11, 12)
- vpaddd %ymm12,%ymm11,%ymm11
- vpxor %ymm11,%ymm6,%ymm6
- vpslld $12,%ymm6,%ymm0
- vpsrld $20,%ymm6,%ymm6
- vpor %ymm0,%ymm6,%ymm6
- # x8 += x13, x7 = rotl32(x7 ^ x8, 12)
- vpaddd %ymm13,%ymm8,%ymm8
- vpxor %ymm8,%ymm7,%ymm7
- vpslld $12,%ymm7,%ymm0
- vpsrld $20,%ymm7,%ymm7
- vpor %ymm0,%ymm7,%ymm7
- # x9 += x14, x4 = rotl32(x4 ^ x9, 12)
- vpaddd %ymm14,%ymm9,%ymm9
- vpxor %ymm9,%ymm4,%ymm4
- vpslld $12,%ymm4,%ymm0
- vpsrld $20,%ymm4,%ymm4
- vpor %ymm0,%ymm4,%ymm4
-
- # x0 += x5, x15 = rotl32(x15 ^ x0, 8)
- vpaddd 0x00(%rsp),%ymm5,%ymm0
- vmovdqa %ymm0,0x00(%rsp)
- vpxor %ymm0,%ymm15,%ymm15
- vpshufb %ymm2,%ymm15,%ymm15
- # x1 += x6, x12 = rotl32(x12 ^ x1, 8)
- vpaddd 0x20(%rsp),%ymm6,%ymm0
- vmovdqa %ymm0,0x20(%rsp)
- vpxor %ymm0,%ymm12,%ymm12
- vpshufb %ymm2,%ymm12,%ymm12
- # x2 += x7, x13 = rotl32(x13 ^ x2, 8)
- vpaddd 0x40(%rsp),%ymm7,%ymm0
- vmovdqa %ymm0,0x40(%rsp)
- vpxor %ymm0,%ymm13,%ymm13
- vpshufb %ymm2,%ymm13,%ymm13
- # x3 += x4, x14 = rotl32(x14 ^ x3, 8)
- vpaddd 0x60(%rsp),%ymm4,%ymm0
- vmovdqa %ymm0,0x60(%rsp)
- vpxor %ymm0,%ymm14,%ymm14
- vpshufb %ymm2,%ymm14,%ymm14
-
- # x10 += x15, x5 = rotl32(x5 ^ x10, 7)
- vpaddd %ymm15,%ymm10,%ymm10
- vpxor %ymm10,%ymm5,%ymm5
- vpslld $7,%ymm5,%ymm0
- vpsrld $25,%ymm5,%ymm5
- vpor %ymm0,%ymm5,%ymm5
- # x11 += x12, x6 = rotl32(x6 ^ x11, 7)
- vpaddd %ymm12,%ymm11,%ymm11
- vpxor %ymm11,%ymm6,%ymm6
- vpslld $7,%ymm6,%ymm0
- vpsrld $25,%ymm6,%ymm6
- vpor %ymm0,%ymm6,%ymm6
- # x8 += x13, x7 = rotl32(x7 ^ x8, 7)
- vpaddd %ymm13,%ymm8,%ymm8
- vpxor %ymm8,%ymm7,%ymm7
- vpslld $7,%ymm7,%ymm0
- vpsrld $25,%ymm7,%ymm7
- vpor %ymm0,%ymm7,%ymm7
- # x9 += x14, x4 = rotl32(x4 ^ x9, 7)
- vpaddd %ymm14,%ymm9,%ymm9
- vpxor %ymm9,%ymm4,%ymm4
- vpslld $7,%ymm4,%ymm0
- vpsrld $25,%ymm4,%ymm4
- vpor %ymm0,%ymm4,%ymm4
-
- dec %ecx
- jnz .Ldoubleround8
-
- # x0..15[0-3] += s[0..15]
- vpbroadcastd 0x00(%rdi),%ymm0
- vpaddd 0x00(%rsp),%ymm0,%ymm0
- vmovdqa %ymm0,0x00(%rsp)
- vpbroadcastd 0x04(%rdi),%ymm0
- vpaddd 0x20(%rsp),%ymm0,%ymm0
- vmovdqa %ymm0,0x20(%rsp)
- vpbroadcastd 0x08(%rdi),%ymm0
- vpaddd 0x40(%rsp),%ymm0,%ymm0
- vmovdqa %ymm0,0x40(%rsp)
- vpbroadcastd 0x0c(%rdi),%ymm0
- vpaddd 0x60(%rsp),%ymm0,%ymm0
- vmovdqa %ymm0,0x60(%rsp)
- vpbroadcastd 0x10(%rdi),%ymm0
- vpaddd %ymm0,%ymm4,%ymm4
- vpbroadcastd 0x14(%rdi),%ymm0
- vpaddd %ymm0,%ymm5,%ymm5
- vpbroadcastd 0x18(%rdi),%ymm0
- vpaddd %ymm0,%ymm6,%ymm6
- vpbroadcastd 0x1c(%rdi),%ymm0
- vpaddd %ymm0,%ymm7,%ymm7
- vpbroadcastd 0x20(%rdi),%ymm0
- vpaddd %ymm0,%ymm8,%ymm8
- vpbroadcastd 0x24(%rdi),%ymm0
- vpaddd %ymm0,%ymm9,%ymm9
- vpbroadcastd 0x28(%rdi),%ymm0
- vpaddd %ymm0,%ymm10,%ymm10
- vpbroadcastd 0x2c(%rdi),%ymm0
- vpaddd %ymm0,%ymm11,%ymm11
- vpbroadcastd 0x30(%rdi),%ymm0
- vpaddd %ymm0,%ymm12,%ymm12
- vpbroadcastd 0x34(%rdi),%ymm0
- vpaddd %ymm0,%ymm13,%ymm13
- vpbroadcastd 0x38(%rdi),%ymm0
- vpaddd %ymm0,%ymm14,%ymm14
- vpbroadcastd 0x3c(%rdi),%ymm0
- vpaddd %ymm0,%ymm15,%ymm15
-
- # x12 += counter values 0-3
- vpaddd %ymm1,%ymm12,%ymm12
-
- # interleave 32-bit words in state n, n+1
- vmovdqa 0x00(%rsp),%ymm0
- vmovdqa 0x20(%rsp),%ymm1
- vpunpckldq %ymm1,%ymm0,%ymm2
- vpunpckhdq %ymm1,%ymm0,%ymm1
- vmovdqa %ymm2,0x00(%rsp)
- vmovdqa %ymm1,0x20(%rsp)
- vmovdqa 0x40(%rsp),%ymm0
- vmovdqa 0x60(%rsp),%ymm1
- vpunpckldq %ymm1,%ymm0,%ymm2
- vpunpckhdq %ymm1,%ymm0,%ymm1
- vmovdqa %ymm2,0x40(%rsp)
- vmovdqa %ymm1,0x60(%rsp)
- vmovdqa %ymm4,%ymm0
- vpunpckldq %ymm5,%ymm0,%ymm4
- vpunpckhdq %ymm5,%ymm0,%ymm5
- vmovdqa %ymm6,%ymm0
- vpunpckldq %ymm7,%ymm0,%ymm6
- vpunpckhdq %ymm7,%ymm0,%ymm7
- vmovdqa %ymm8,%ymm0
- vpunpckldq %ymm9,%ymm0,%ymm8
- vpunpckhdq %ymm9,%ymm0,%ymm9
- vmovdqa %ymm10,%ymm0
- vpunpckldq %ymm11,%ymm0,%ymm10
- vpunpckhdq %ymm11,%ymm0,%ymm11
- vmovdqa %ymm12,%ymm0
- vpunpckldq %ymm13,%ymm0,%ymm12
- vpunpckhdq %ymm13,%ymm0,%ymm13
- vmovdqa %ymm14,%ymm0
- vpunpckldq %ymm15,%ymm0,%ymm14
- vpunpckhdq %ymm15,%ymm0,%ymm15
-
- # interleave 64-bit words in state n, n+2
- vmovdqa 0x00(%rsp),%ymm0
- vmovdqa 0x40(%rsp),%ymm2
- vpunpcklqdq %ymm2,%ymm0,%ymm1
- vpunpckhqdq %ymm2,%ymm0,%ymm2
- vmovdqa %ymm1,0x00(%rsp)
- vmovdqa %ymm2,0x40(%rsp)
- vmovdqa 0x20(%rsp),%ymm0
- vmovdqa 0x60(%rsp),%ymm2
- vpunpcklqdq %ymm2,%ymm0,%ymm1
- vpunpckhqdq %ymm2,%ymm0,%ymm2
- vmovdqa %ymm1,0x20(%rsp)
- vmovdqa %ymm2,0x60(%rsp)
- vmovdqa %ymm4,%ymm0
- vpunpcklqdq %ymm6,%ymm0,%ymm4
- vpunpckhqdq %ymm6,%ymm0,%ymm6
- vmovdqa %ymm5,%ymm0
- vpunpcklqdq %ymm7,%ymm0,%ymm5
- vpunpckhqdq %ymm7,%ymm0,%ymm7
- vmovdqa %ymm8,%ymm0
- vpunpcklqdq %ymm10,%ymm0,%ymm8
- vpunpckhqdq %ymm10,%ymm0,%ymm10
- vmovdqa %ymm9,%ymm0
- vpunpcklqdq %ymm11,%ymm0,%ymm9
- vpunpckhqdq %ymm11,%ymm0,%ymm11
- vmovdqa %ymm12,%ymm0
- vpunpcklqdq %ymm14,%ymm0,%ymm12
- vpunpckhqdq %ymm14,%ymm0,%ymm14
- vmovdqa %ymm13,%ymm0
- vpunpcklqdq %ymm15,%ymm0,%ymm13
- vpunpckhqdq %ymm15,%ymm0,%ymm15
-
- # interleave 128-bit words in state n, n+4
- vmovdqa 0x00(%rsp),%ymm0
- vperm2i128 $0x20,%ymm4,%ymm0,%ymm1
- vperm2i128 $0x31,%ymm4,%ymm0,%ymm4
- vmovdqa %ymm1,0x00(%rsp)
- vmovdqa 0x20(%rsp),%ymm0
- vperm2i128 $0x20,%ymm5,%ymm0,%ymm1
- vperm2i128 $0x31,%ymm5,%ymm0,%ymm5
- vmovdqa %ymm1,0x20(%rsp)
- vmovdqa 0x40(%rsp),%ymm0
- vperm2i128 $0x20,%ymm6,%ymm0,%ymm1
- vperm2i128 $0x31,%ymm6,%ymm0,%ymm6
- vmovdqa %ymm1,0x40(%rsp)
- vmovdqa 0x60(%rsp),%ymm0
- vperm2i128 $0x20,%ymm7,%ymm0,%ymm1
- vperm2i128 $0x31,%ymm7,%ymm0,%ymm7
- vmovdqa %ymm1,0x60(%rsp)
- vperm2i128 $0x20,%ymm12,%ymm8,%ymm0
- vperm2i128 $0x31,%ymm12,%ymm8,%ymm12
- vmovdqa %ymm0,%ymm8
- vperm2i128 $0x20,%ymm13,%ymm9,%ymm0
- vperm2i128 $0x31,%ymm13,%ymm9,%ymm13
- vmovdqa %ymm0,%ymm9
- vperm2i128 $0x20,%ymm14,%ymm10,%ymm0
- vperm2i128 $0x31,%ymm14,%ymm10,%ymm14
- vmovdqa %ymm0,%ymm10
- vperm2i128 $0x20,%ymm15,%ymm11,%ymm0
- vperm2i128 $0x31,%ymm15,%ymm11,%ymm15
- vmovdqa %ymm0,%ymm11
-
- # xor with corresponding input, write to output
- vmovdqa 0x00(%rsp),%ymm0
- vpxor 0x0000(%rdx),%ymm0,%ymm0
- vmovdqu %ymm0,0x0000(%rsi)
- vmovdqa 0x20(%rsp),%ymm0
- vpxor 0x0080(%rdx),%ymm0,%ymm0
- vmovdqu %ymm0,0x0080(%rsi)
- vmovdqa 0x40(%rsp),%ymm0
- vpxor 0x0040(%rdx),%ymm0,%ymm0
- vmovdqu %ymm0,0x0040(%rsi)
- vmovdqa 0x60(%rsp),%ymm0
- vpxor 0x00c0(%rdx),%ymm0,%ymm0
- vmovdqu %ymm0,0x00c0(%rsi)
- vpxor 0x0100(%rdx),%ymm4,%ymm4
- vmovdqu %ymm4,0x0100(%rsi)
- vpxor 0x0180(%rdx),%ymm5,%ymm5
- vmovdqu %ymm5,0x00180(%rsi)
- vpxor 0x0140(%rdx),%ymm6,%ymm6
- vmovdqu %ymm6,0x0140(%rsi)
- vpxor 0x01c0(%rdx),%ymm7,%ymm7
- vmovdqu %ymm7,0x01c0(%rsi)
- vpxor 0x0020(%rdx),%ymm8,%ymm8
- vmovdqu %ymm8,0x0020(%rsi)
- vpxor 0x00a0(%rdx),%ymm9,%ymm9
- vmovdqu %ymm9,0x00a0(%rsi)
- vpxor 0x0060(%rdx),%ymm10,%ymm10
- vmovdqu %ymm10,0x0060(%rsi)
- vpxor 0x00e0(%rdx),%ymm11,%ymm11
- vmovdqu %ymm11,0x00e0(%rsi)
- vpxor 0x0120(%rdx),%ymm12,%ymm12
- vmovdqu %ymm12,0x0120(%rsi)
- vpxor 0x01a0(%rdx),%ymm13,%ymm13
- vmovdqu %ymm13,0x01a0(%rsi)
- vpxor 0x0160(%rdx),%ymm14,%ymm14
- vmovdqu %ymm14,0x0160(%rsi)
- vpxor 0x01e0(%rdx),%ymm15,%ymm15
- vmovdqu %ymm15,0x01e0(%rsi)
-
- vzeroupper
- lea -8(%r10),%rsp
- ret
-ENDPROC(chacha20_8block_xor_avx2)
diff --git a/arch/x86/crypto/chacha20_glue.c b/arch/x86/crypto/chacha20_glue.c
deleted file mode 100644
index dce7c5d..0000000
--- a/arch/x86/crypto/chacha20_glue.c
+++ /dev/null
@@ -1,146 +0,0 @@
-/*
- * ChaCha20 256-bit cipher algorithm, RFC7539, SIMD glue code
- *
- * Copyright (C) 2015 Martin Willi
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#include <crypto/algapi.h>
-#include <crypto/chacha20.h>
-#include <crypto/internal/skcipher.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <asm/fpu/api.h>
-#include <asm/simd.h>
-
-#define CHACHA20_STATE_ALIGN 16
-
-asmlinkage void chacha20_block_xor_ssse3(u32 *state, u8 *dst, const u8 *src);
-asmlinkage void chacha20_4block_xor_ssse3(u32 *state, u8 *dst, const u8 *src);
-#ifdef CONFIG_AS_AVX2
-asmlinkage void chacha20_8block_xor_avx2(u32 *state, u8 *dst, const u8 *src);
-static bool chacha20_use_avx2;
-#endif
-
-static void chacha20_dosimd(u32 *state, u8 *dst, const u8 *src,
- unsigned int bytes)
-{
- u8 buf[CHACHA20_BLOCK_SIZE];
-
-#ifdef CONFIG_AS_AVX2
- if (chacha20_use_avx2) {
- while (bytes >= CHACHA20_BLOCK_SIZE * 8) {
- chacha20_8block_xor_avx2(state, dst, src);
- bytes -= CHACHA20_BLOCK_SIZE * 8;
- src += CHACHA20_BLOCK_SIZE * 8;
- dst += CHACHA20_BLOCK_SIZE * 8;
- state[12] += 8;
- }
- }
-#endif
- while (bytes >= CHACHA20_BLOCK_SIZE * 4) {
- chacha20_4block_xor_ssse3(state, dst, src);
- bytes -= CHACHA20_BLOCK_SIZE * 4;
- src += CHACHA20_BLOCK_SIZE * 4;
- dst += CHACHA20_BLOCK_SIZE * 4;
- state[12] += 4;
- }
- while (bytes >= CHACHA20_BLOCK_SIZE) {
- chacha20_block_xor_ssse3(state, dst, src);
- bytes -= CHACHA20_BLOCK_SIZE;
- src += CHACHA20_BLOCK_SIZE;
- dst += CHACHA20_BLOCK_SIZE;
- state[12]++;
- }
- if (bytes) {
- memcpy(buf, src, bytes);
- chacha20_block_xor_ssse3(state, buf, buf);
- memcpy(dst, buf, bytes);
- }
-}
-
-static int chacha20_simd(struct skcipher_request *req)
-{
- struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
- struct chacha20_ctx *ctx = crypto_skcipher_ctx(tfm);
- u32 *state, state_buf[16 + 2] __aligned(8);
- struct skcipher_walk walk;
- int err;
-
- BUILD_BUG_ON(CHACHA20_STATE_ALIGN != 16);
- state = PTR_ALIGN(state_buf + 0, CHACHA20_STATE_ALIGN);
-
- if (req->cryptlen <= CHACHA20_BLOCK_SIZE || !may_use_simd())
- return crypto_chacha20_crypt(req);
-
- err = skcipher_walk_virt(&walk, req, true);
-
- crypto_chacha20_init(state, ctx, walk.iv);
-
- kernel_fpu_begin();
-
- while (walk.nbytes >= CHACHA20_BLOCK_SIZE) {
- chacha20_dosimd(state, walk.dst.virt.addr, walk.src.virt.addr,
- rounddown(walk.nbytes, CHACHA20_BLOCK_SIZE));
- err = skcipher_walk_done(&walk,
- walk.nbytes % CHACHA20_BLOCK_SIZE);
- }
-
- if (walk.nbytes) {
- chacha20_dosimd(state, walk.dst.virt.addr, walk.src.virt.addr,
- walk.nbytes);
- err = skcipher_walk_done(&walk, 0);
- }
-
- kernel_fpu_end();
-
- return err;
-}
-
-static struct skcipher_alg alg = {
- .base.cra_name = "chacha20",
- .base.cra_driver_name = "chacha20-simd",
- .base.cra_priority = 300,
- .base.cra_blocksize = 1,
- .base.cra_ctxsize = sizeof(struct chacha20_ctx),
- .base.cra_module = THIS_MODULE,
-
- .min_keysize = CHACHA20_KEY_SIZE,
- .max_keysize = CHACHA20_KEY_SIZE,
- .ivsize = CHACHA20_IV_SIZE,
- .chunksize = CHACHA20_BLOCK_SIZE,
- .setkey = crypto_chacha20_setkey,
- .encrypt = chacha20_simd,
- .decrypt = chacha20_simd,
-};
-
-static int __init chacha20_simd_mod_init(void)
-{
- if (!boot_cpu_has(X86_FEATURE_SSSE3))
- return -ENODEV;
-
-#ifdef CONFIG_AS_AVX2
- chacha20_use_avx2 = boot_cpu_has(X86_FEATURE_AVX) &&
- boot_cpu_has(X86_FEATURE_AVX2) &&
- cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL);
-#endif
- return crypto_register_skcipher(&alg);
-}
-
-static void __exit chacha20_simd_mod_fini(void)
-{
- crypto_unregister_skcipher(&alg);
-}
-
-module_init(chacha20_simd_mod_init);
-module_exit(chacha20_simd_mod_fini);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Martin Willi <martin@strongswan.org>");
-MODULE_DESCRIPTION("chacha20 cipher algorithm, SIMD accelerated");
-MODULE_ALIAS_CRYPTO("chacha20");
-MODULE_ALIAS_CRYPTO("chacha20-simd");
diff --git a/arch/x86/crypto/chacha_glue.c b/arch/x86/crypto/chacha_glue.c
new file mode 100644
index 0000000..f198292
--- /dev/null
+++ b/arch/x86/crypto/chacha_glue.c
@@ -0,0 +1,322 @@
+/*
+ * x64 SIMD accelerated ChaCha and XChaCha stream ciphers,
+ * including ChaCha20 (RFC7539)
+ *
+ * Copyright (C) 2015 Martin Willi
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <crypto/algapi.h>
+#include <crypto/internal/chacha.h>
+#include <crypto/internal/skcipher.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <asm/fpu/api.h>
+#include <asm/simd.h>
+
+asmlinkage void chacha_block_xor_ssse3(u32 *state, u8 *dst, const u8 *src,
+ unsigned int len, int nrounds);
+asmlinkage void chacha_4block_xor_ssse3(u32 *state, u8 *dst, const u8 *src,
+ unsigned int len, int nrounds);
+asmlinkage void hchacha_block_ssse3(const u32 *state, u32 *out, int nrounds);
+
+asmlinkage void chacha_2block_xor_avx2(u32 *state, u8 *dst, const u8 *src,
+ unsigned int len, int nrounds);
+asmlinkage void chacha_4block_xor_avx2(u32 *state, u8 *dst, const u8 *src,
+ unsigned int len, int nrounds);
+asmlinkage void chacha_8block_xor_avx2(u32 *state, u8 *dst, const u8 *src,
+ unsigned int len, int nrounds);
+
+asmlinkage void chacha_2block_xor_avx512vl(u32 *state, u8 *dst, const u8 *src,
+ unsigned int len, int nrounds);
+asmlinkage void chacha_4block_xor_avx512vl(u32 *state, u8 *dst, const u8 *src,
+ unsigned int len, int nrounds);
+asmlinkage void chacha_8block_xor_avx512vl(u32 *state, u8 *dst, const u8 *src,
+ unsigned int len, int nrounds);
+
+static __ro_after_init DEFINE_STATIC_KEY_FALSE(chacha_use_simd);
+static __ro_after_init DEFINE_STATIC_KEY_FALSE(chacha_use_avx2);
+static __ro_after_init DEFINE_STATIC_KEY_FALSE(chacha_use_avx512vl);
+
+static unsigned int chacha_advance(unsigned int len, unsigned int maxblocks)
+{
+ len = min(len, maxblocks * CHACHA_BLOCK_SIZE);
+ return round_up(len, CHACHA_BLOCK_SIZE) / CHACHA_BLOCK_SIZE;
+}
+
+static void chacha_dosimd(u32 *state, u8 *dst, const u8 *src,
+ unsigned int bytes, int nrounds)
+{
+ if (IS_ENABLED(CONFIG_AS_AVX512) &&
+ static_branch_likely(&chacha_use_avx512vl)) {
+ while (bytes >= CHACHA_BLOCK_SIZE * 8) {
+ chacha_8block_xor_avx512vl(state, dst, src, bytes,
+ nrounds);
+ bytes -= CHACHA_BLOCK_SIZE * 8;
+ src += CHACHA_BLOCK_SIZE * 8;
+ dst += CHACHA_BLOCK_SIZE * 8;
+ state[12] += 8;
+ }
+ if (bytes > CHACHA_BLOCK_SIZE * 4) {
+ chacha_8block_xor_avx512vl(state, dst, src, bytes,
+ nrounds);
+ state[12] += chacha_advance(bytes, 8);
+ return;
+ }
+ if (bytes > CHACHA_BLOCK_SIZE * 2) {
+ chacha_4block_xor_avx512vl(state, dst, src, bytes,
+ nrounds);
+ state[12] += chacha_advance(bytes, 4);
+ return;
+ }
+ if (bytes) {
+ chacha_2block_xor_avx512vl(state, dst, src, bytes,
+ nrounds);
+ state[12] += chacha_advance(bytes, 2);
+ return;
+ }
+ }
+
+ if (IS_ENABLED(CONFIG_AS_AVX2) &&
+ static_branch_likely(&chacha_use_avx2)) {
+ while (bytes >= CHACHA_BLOCK_SIZE * 8) {
+ chacha_8block_xor_avx2(state, dst, src, bytes, nrounds);
+ bytes -= CHACHA_BLOCK_SIZE * 8;
+ src += CHACHA_BLOCK_SIZE * 8;
+ dst += CHACHA_BLOCK_SIZE * 8;
+ state[12] += 8;
+ }
+ if (bytes > CHACHA_BLOCK_SIZE * 4) {
+ chacha_8block_xor_avx2(state, dst, src, bytes, nrounds);
+ state[12] += chacha_advance(bytes, 8);
+ return;
+ }
+ if (bytes > CHACHA_BLOCK_SIZE * 2) {
+ chacha_4block_xor_avx2(state, dst, src, bytes, nrounds);
+ state[12] += chacha_advance(bytes, 4);
+ return;
+ }
+ if (bytes > CHACHA_BLOCK_SIZE) {
+ chacha_2block_xor_avx2(state, dst, src, bytes, nrounds);
+ state[12] += chacha_advance(bytes, 2);
+ return;
+ }
+ }
+
+ while (bytes >= CHACHA_BLOCK_SIZE * 4) {
+ chacha_4block_xor_ssse3(state, dst, src, bytes, nrounds);
+ bytes -= CHACHA_BLOCK_SIZE * 4;
+ src += CHACHA_BLOCK_SIZE * 4;
+ dst += CHACHA_BLOCK_SIZE * 4;
+ state[12] += 4;
+ }
+ if (bytes > CHACHA_BLOCK_SIZE) {
+ chacha_4block_xor_ssse3(state, dst, src, bytes, nrounds);
+ state[12] += chacha_advance(bytes, 4);
+ return;
+ }
+ if (bytes) {
+ chacha_block_xor_ssse3(state, dst, src, bytes, nrounds);
+ state[12]++;
+ }
+}
+
+void hchacha_block_arch(const u32 *state, u32 *stream, int nrounds)
+{
+ if (!static_branch_likely(&chacha_use_simd) || !may_use_simd()) {
+ hchacha_block_generic(state, stream, nrounds);
+ } else {
+ kernel_fpu_begin();
+ hchacha_block_ssse3(state, stream, nrounds);
+ kernel_fpu_end();
+ }
+}
+EXPORT_SYMBOL(hchacha_block_arch);
+
+void chacha_init_arch(u32 *state, const u32 *key, const u8 *iv)
+{
+ chacha_init_generic(state, key, iv);
+}
+EXPORT_SYMBOL(chacha_init_arch);
+
+void chacha_crypt_arch(u32 *state, u8 *dst, const u8 *src, unsigned int bytes,
+ int nrounds)
+{
+ if (!static_branch_likely(&chacha_use_simd) || !may_use_simd() ||
+ bytes <= CHACHA_BLOCK_SIZE)
+ return chacha_crypt_generic(state, dst, src, bytes, nrounds);
+
+ do {
+ unsigned int todo = min_t(unsigned int, bytes, SZ_4K);
+
+ kernel_fpu_begin();
+ chacha_dosimd(state, dst, src, todo, nrounds);
+ kernel_fpu_end();
+
+ bytes -= todo;
+ src += todo;
+ dst += todo;
+ } while (bytes);
+}
+EXPORT_SYMBOL(chacha_crypt_arch);
+
+static int chacha_simd_stream_xor(struct skcipher_request *req,
+ const struct chacha_ctx *ctx, const u8 *iv)
+{
+ u32 state[CHACHA_STATE_WORDS] __aligned(8);
+ struct skcipher_walk walk;
+ int err;
+
+ err = skcipher_walk_virt(&walk, req, false);
+
+ chacha_init_generic(state, ctx->key, iv);
+
+ while (walk.nbytes > 0) {
+ unsigned int nbytes = walk.nbytes;
+
+ if (nbytes < walk.total)
+ nbytes = round_down(nbytes, walk.stride);
+
+ if (!static_branch_likely(&chacha_use_simd) ||
+ !may_use_simd()) {
+ chacha_crypt_generic(state, walk.dst.virt.addr,
+ walk.src.virt.addr, nbytes,
+ ctx->nrounds);
+ } else {
+ kernel_fpu_begin();
+ chacha_dosimd(state, walk.dst.virt.addr,
+ walk.src.virt.addr, nbytes,
+ ctx->nrounds);
+ kernel_fpu_end();
+ }
+ err = skcipher_walk_done(&walk, walk.nbytes - nbytes);
+ }
+
+ return err;
+}
+
+static int chacha_simd(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+ return chacha_simd_stream_xor(req, ctx, req->iv);
+}
+
+static int xchacha_simd(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
+ u32 state[CHACHA_STATE_WORDS] __aligned(8);
+ struct chacha_ctx subctx;
+ u8 real_iv[16];
+
+ chacha_init_generic(state, ctx->key, req->iv);
+
+ if (req->cryptlen > CHACHA_BLOCK_SIZE && irq_fpu_usable()) {
+ kernel_fpu_begin();
+ hchacha_block_ssse3(state, subctx.key, ctx->nrounds);
+ kernel_fpu_end();
+ } else {
+ hchacha_block_generic(state, subctx.key, ctx->nrounds);
+ }
+ subctx.nrounds = ctx->nrounds;
+
+ memcpy(&real_iv[0], req->iv + 24, 8);
+ memcpy(&real_iv[8], req->iv + 16, 8);
+ return chacha_simd_stream_xor(req, &subctx, real_iv);
+}
+
+static struct skcipher_alg algs[] = {
+ {
+ .base.cra_name = "chacha20",
+ .base.cra_driver_name = "chacha20-simd",
+ .base.cra_priority = 300,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
+ .base.cra_module = THIS_MODULE,
+
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = CHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
+ .setkey = chacha20_setkey,
+ .encrypt = chacha_simd,
+ .decrypt = chacha_simd,
+ }, {
+ .base.cra_name = "xchacha20",
+ .base.cra_driver_name = "xchacha20-simd",
+ .base.cra_priority = 300,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
+ .base.cra_module = THIS_MODULE,
+
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = XCHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
+ .setkey = chacha20_setkey,
+ .encrypt = xchacha_simd,
+ .decrypt = xchacha_simd,
+ }, {
+ .base.cra_name = "xchacha12",
+ .base.cra_driver_name = "xchacha12-simd",
+ .base.cra_priority = 300,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
+ .base.cra_module = THIS_MODULE,
+
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = XCHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
+ .setkey = chacha12_setkey,
+ .encrypt = xchacha_simd,
+ .decrypt = xchacha_simd,
+ },
+};
+
+static int __init chacha_simd_mod_init(void)
+{
+ if (!boot_cpu_has(X86_FEATURE_SSSE3))
+ return 0;
+
+ static_branch_enable(&chacha_use_simd);
+
+ if (IS_ENABLED(CONFIG_AS_AVX2) &&
+ boot_cpu_has(X86_FEATURE_AVX) &&
+ boot_cpu_has(X86_FEATURE_AVX2) &&
+ cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL)) {
+ static_branch_enable(&chacha_use_avx2);
+
+ if (IS_ENABLED(CONFIG_AS_AVX512) &&
+ boot_cpu_has(X86_FEATURE_AVX512VL) &&
+ boot_cpu_has(X86_FEATURE_AVX512BW)) /* kmovq */
+ static_branch_enable(&chacha_use_avx512vl);
+ }
+ return IS_REACHABLE(CONFIG_CRYPTO_BLKCIPHER) ?
+ crypto_register_skciphers(algs, ARRAY_SIZE(algs)) : 0;
+}
+
+static void __exit chacha_simd_mod_fini(void)
+{
+ if (IS_REACHABLE(CONFIG_CRYPTO_BLKCIPHER) && boot_cpu_has(X86_FEATURE_SSSE3))
+ crypto_unregister_skciphers(algs, ARRAY_SIZE(algs));
+}
+
+module_init(chacha_simd_mod_init);
+module_exit(chacha_simd_mod_fini);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Martin Willi <martin@strongswan.org>");
+MODULE_DESCRIPTION("ChaCha and XChaCha stream ciphers (x64 SIMD accelerated)");
+MODULE_ALIAS_CRYPTO("chacha20");
+MODULE_ALIAS_CRYPTO("chacha20-simd");
+MODULE_ALIAS_CRYPTO("xchacha20");
+MODULE_ALIAS_CRYPTO("xchacha20-simd");
+MODULE_ALIAS_CRYPTO("xchacha12");
+MODULE_ALIAS_CRYPTO("xchacha12-simd");
diff --git a/arch/x86/crypto/curve25519-x86_64.c b/arch/x86/crypto/curve25519-x86_64.c
new file mode 100644
index 0000000..a9edb6f
--- /dev/null
+++ b/arch/x86/crypto/curve25519-x86_64.c
@@ -0,0 +1,1512 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2020 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (c) 2016-2020 INRIA, CMU and Microsoft Corporation
+ */
+
+#include <crypto/curve25519.h>
+#include <crypto/internal/kpp.h>
+
+#include <linux/types.h>
+#include <linux/jump_label.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include <asm/cpufeature.h>
+#include <asm/processor.h>
+
+static __always_inline u64 eq_mask(u64 a, u64 b)
+{
+ u64 x = a ^ b;
+ u64 minus_x = ~x + (u64)1U;
+ u64 x_or_minus_x = x | minus_x;
+ u64 xnx = x_or_minus_x >> (u32)63U;
+ return xnx - (u64)1U;
+}
+
+static __always_inline u64 gte_mask(u64 a, u64 b)
+{
+ u64 x = a;
+ u64 y = b;
+ u64 x_xor_y = x ^ y;
+ u64 x_sub_y = x - y;
+ u64 x_sub_y_xor_y = x_sub_y ^ y;
+ u64 q = x_xor_y | x_sub_y_xor_y;
+ u64 x_xor_q = x ^ q;
+ u64 x_xor_q_ = x_xor_q >> (u32)63U;
+ return x_xor_q_ - (u64)1U;
+}
+
+/* Computes the addition of four-element f1 with value in f2
+ * and returns the carry (if any) */
+static inline u64 add_scalar(u64 *out, const u64 *f1, u64 f2)
+{
+ u64 carry_r;
+
+ asm volatile(
+ /* Clear registers to propagate the carry bit */
+ " xor %%r8d, %%r8d;"
+ " xor %%r9d, %%r9d;"
+ " xor %%r10d, %%r10d;"
+ " xor %%r11d, %%r11d;"
+ " xor %k1, %k1;"
+
+ /* Begin addition chain */
+ " addq 0(%3), %0;"
+ " movq %0, 0(%2);"
+ " adcxq 8(%3), %%r8;"
+ " movq %%r8, 8(%2);"
+ " adcxq 16(%3), %%r9;"
+ " movq %%r9, 16(%2);"
+ " adcxq 24(%3), %%r10;"
+ " movq %%r10, 24(%2);"
+
+ /* Return the carry bit in a register */
+ " adcx %%r11, %1;"
+ : "+&r" (f2), "=&r" (carry_r)
+ : "r" (out), "r" (f1)
+ : "%r8", "%r9", "%r10", "%r11", "memory", "cc"
+ );
+
+ return carry_r;
+}
+
+/* Computes the field addition of two field elements */
+static inline void fadd(u64 *out, const u64 *f1, const u64 *f2)
+{
+ asm volatile(
+ /* Compute the raw addition of f1 + f2 */
+ " movq 0(%0), %%r8;"
+ " addq 0(%2), %%r8;"
+ " movq 8(%0), %%r9;"
+ " adcxq 8(%2), %%r9;"
+ " movq 16(%0), %%r10;"
+ " adcxq 16(%2), %%r10;"
+ " movq 24(%0), %%r11;"
+ " adcxq 24(%2), %%r11;"
+
+ /* Wrap the result back into the field */
+
+ /* Step 1: Compute carry*38 */
+ " mov $0, %%rax;"
+ " mov $38, %0;"
+ " cmovc %0, %%rax;"
+
+ /* Step 2: Add carry*38 to the original sum */
+ " xor %%ecx, %%ecx;"
+ " add %%rax, %%r8;"
+ " adcx %%rcx, %%r9;"
+ " movq %%r9, 8(%1);"
+ " adcx %%rcx, %%r10;"
+ " movq %%r10, 16(%1);"
+ " adcx %%rcx, %%r11;"
+ " movq %%r11, 24(%1);"
+
+ /* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */
+ " mov $0, %%rax;"
+ " cmovc %0, %%rax;"
+ " add %%rax, %%r8;"
+ " movq %%r8, 0(%1);"
+ : "+&r" (f2)
+ : "r" (out), "r" (f1)
+ : "%rax", "%rcx", "%r8", "%r9", "%r10", "%r11", "memory", "cc"
+ );
+}
+
+/* Computes the field substraction of two field elements */
+static inline void fsub(u64 *out, const u64 *f1, const u64 *f2)
+{
+ asm volatile(
+ /* Compute the raw substraction of f1-f2 */
+ " movq 0(%1), %%r8;"
+ " subq 0(%2), %%r8;"
+ " movq 8(%1), %%r9;"
+ " sbbq 8(%2), %%r9;"
+ " movq 16(%1), %%r10;"
+ " sbbq 16(%2), %%r10;"
+ " movq 24(%1), %%r11;"
+ " sbbq 24(%2), %%r11;"
+
+ /* Wrap the result back into the field */
+
+ /* Step 1: Compute carry*38 */
+ " mov $0, %%rax;"
+ " mov $38, %%rcx;"
+ " cmovc %%rcx, %%rax;"
+
+ /* Step 2: Substract carry*38 from the original difference */
+ " sub %%rax, %%r8;"
+ " sbb $0, %%r9;"
+ " sbb $0, %%r10;"
+ " sbb $0, %%r11;"
+
+ /* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */
+ " mov $0, %%rax;"
+ " cmovc %%rcx, %%rax;"
+ " sub %%rax, %%r8;"
+
+ /* Store the result */
+ " movq %%r8, 0(%0);"
+ " movq %%r9, 8(%0);"
+ " movq %%r10, 16(%0);"
+ " movq %%r11, 24(%0);"
+ :
+ : "r" (out), "r" (f1), "r" (f2)
+ : "%rax", "%rcx", "%r8", "%r9", "%r10", "%r11", "memory", "cc"
+ );
+}
+
+/* Computes a field multiplication: out <- f1 * f2
+ * Uses the 8-element buffer tmp for intermediate results */
+static inline void fmul(u64 *out, const u64 *f1, const u64 *f2, u64 *tmp)
+{
+ asm volatile(
+ /* Compute the raw multiplication: tmp <- src1 * src2 */
+
+ /* Compute src1[0] * src2 */
+ " movq 0(%1), %%rdx;"
+ " mulxq 0(%3), %%r8, %%r9;" " xor %%r10d, %%r10d;" " movq %%r8, 0(%0);"
+ " mulxq 8(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " movq %%r10, 8(%0);"
+ " mulxq 16(%3), %%rbx, %%r13;" " adox %%r11, %%rbx;"
+ " mulxq 24(%3), %%r14, %%rdx;" " adox %%r13, %%r14;" " mov $0, %%rax;"
+ " adox %%rdx, %%rax;"
+ /* Compute src1[1] * src2 */
+ " movq 8(%1), %%rdx;"
+ " mulxq 0(%3), %%r8, %%r9;" " xor %%r10d, %%r10d;" " adcxq 8(%0), %%r8;" " movq %%r8, 8(%0);"
+ " mulxq 8(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " adcx %%rbx, %%r10;" " movq %%r10, 16(%0);"
+ " mulxq 16(%3), %%rbx, %%r13;" " adox %%r11, %%rbx;" " adcx %%r14, %%rbx;" " mov $0, %%r8;"
+ " mulxq 24(%3), %%r14, %%rdx;" " adox %%r13, %%r14;" " adcx %%rax, %%r14;" " mov $0, %%rax;"
+ " adox %%rdx, %%rax;" " adcx %%r8, %%rax;"
+ /* Compute src1[2] * src2 */
+ " movq 16(%1), %%rdx;"
+ " mulxq 0(%3), %%r8, %%r9;" " xor %%r10d, %%r10d;" " adcxq 16(%0), %%r8;" " movq %%r8, 16(%0);"
+ " mulxq 8(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " adcx %%rbx, %%r10;" " movq %%r10, 24(%0);"
+ " mulxq 16(%3), %%rbx, %%r13;" " adox %%r11, %%rbx;" " adcx %%r14, %%rbx;" " mov $0, %%r8;"
+ " mulxq 24(%3), %%r14, %%rdx;" " adox %%r13, %%r14;" " adcx %%rax, %%r14;" " mov $0, %%rax;"
+ " adox %%rdx, %%rax;" " adcx %%r8, %%rax;"
+ /* Compute src1[3] * src2 */
+ " movq 24(%1), %%rdx;"
+ " mulxq 0(%3), %%r8, %%r9;" " xor %%r10d, %%r10d;" " adcxq 24(%0), %%r8;" " movq %%r8, 24(%0);"
+ " mulxq 8(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " adcx %%rbx, %%r10;" " movq %%r10, 32(%0);"
+ " mulxq 16(%3), %%rbx, %%r13;" " adox %%r11, %%rbx;" " adcx %%r14, %%rbx;" " movq %%rbx, 40(%0);" " mov $0, %%r8;"
+ " mulxq 24(%3), %%r14, %%rdx;" " adox %%r13, %%r14;" " adcx %%rax, %%r14;" " movq %%r14, 48(%0);" " mov $0, %%rax;"
+ " adox %%rdx, %%rax;" " adcx %%r8, %%rax;" " movq %%rax, 56(%0);"
+ /* Line up pointers */
+ " mov %0, %1;"
+ " mov %2, %0;"
+
+ /* Wrap the result back into the field */
+
+ /* Step 1: Compute dst + carry == tmp_hi * 38 + tmp_lo */
+ " mov $38, %%rdx;"
+ " mulxq 32(%1), %%r8, %%r13;"
+ " xor %k3, %k3;"
+ " adoxq 0(%1), %%r8;"
+ " mulxq 40(%1), %%r9, %%rbx;"
+ " adcx %%r13, %%r9;"
+ " adoxq 8(%1), %%r9;"
+ " mulxq 48(%1), %%r10, %%r13;"
+ " adcx %%rbx, %%r10;"
+ " adoxq 16(%1), %%r10;"
+ " mulxq 56(%1), %%r11, %%rax;"
+ " adcx %%r13, %%r11;"
+ " adoxq 24(%1), %%r11;"
+ " adcx %3, %%rax;"
+ " adox %3, %%rax;"
+ " imul %%rdx, %%rax;"
+
+ /* Step 2: Fold the carry back into dst */
+ " add %%rax, %%r8;"
+ " adcx %3, %%r9;"
+ " movq %%r9, 8(%0);"
+ " adcx %3, %%r10;"
+ " movq %%r10, 16(%0);"
+ " adcx %3, %%r11;"
+ " movq %%r11, 24(%0);"
+
+ /* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */
+ " mov $0, %%rax;"
+ " cmovc %%rdx, %%rax;"
+ " add %%rax, %%r8;"
+ " movq %%r8, 0(%0);"
+ : "+&r" (tmp), "+&r" (f1), "+&r" (out), "+&r" (f2)
+ :
+ : "%rax", "%rdx", "%r8", "%r9", "%r10", "%r11", "%rbx", "%r13", "%r14", "memory", "cc"
+ );
+}
+
+/* Computes two field multiplications:
+ * out[0] <- f1[0] * f2[0]
+ * out[1] <- f1[1] * f2[1]
+ * Uses the 16-element buffer tmp for intermediate results. */
+static inline void fmul2(u64 *out, const u64 *f1, const u64 *f2, u64 *tmp)
+{
+ asm volatile(
+ /* Compute the raw multiplication tmp[0] <- f1[0] * f2[0] */
+
+ /* Compute src1[0] * src2 */
+ " movq 0(%1), %%rdx;"
+ " mulxq 0(%3), %%r8, %%r9;" " xor %%r10d, %%r10d;" " movq %%r8, 0(%0);"
+ " mulxq 8(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " movq %%r10, 8(%0);"
+ " mulxq 16(%3), %%rbx, %%r13;" " adox %%r11, %%rbx;"
+ " mulxq 24(%3), %%r14, %%rdx;" " adox %%r13, %%r14;" " mov $0, %%rax;"
+ " adox %%rdx, %%rax;"
+ /* Compute src1[1] * src2 */
+ " movq 8(%1), %%rdx;"
+ " mulxq 0(%3), %%r8, %%r9;" " xor %%r10d, %%r10d;" " adcxq 8(%0), %%r8;" " movq %%r8, 8(%0);"
+ " mulxq 8(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " adcx %%rbx, %%r10;" " movq %%r10, 16(%0);"
+ " mulxq 16(%3), %%rbx, %%r13;" " adox %%r11, %%rbx;" " adcx %%r14, %%rbx;" " mov $0, %%r8;"
+ " mulxq 24(%3), %%r14, %%rdx;" " adox %%r13, %%r14;" " adcx %%rax, %%r14;" " mov $0, %%rax;"
+ " adox %%rdx, %%rax;" " adcx %%r8, %%rax;"
+ /* Compute src1[2] * src2 */
+ " movq 16(%1), %%rdx;"
+ " mulxq 0(%3), %%r8, %%r9;" " xor %%r10d, %%r10d;" " adcxq 16(%0), %%r8;" " movq %%r8, 16(%0);"
+ " mulxq 8(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " adcx %%rbx, %%r10;" " movq %%r10, 24(%0);"
+ " mulxq 16(%3), %%rbx, %%r13;" " adox %%r11, %%rbx;" " adcx %%r14, %%rbx;" " mov $0, %%r8;"
+ " mulxq 24(%3), %%r14, %%rdx;" " adox %%r13, %%r14;" " adcx %%rax, %%r14;" " mov $0, %%rax;"
+ " adox %%rdx, %%rax;" " adcx %%r8, %%rax;"
+ /* Compute src1[3] * src2 */
+ " movq 24(%1), %%rdx;"
+ " mulxq 0(%3), %%r8, %%r9;" " xor %%r10d, %%r10d;" " adcxq 24(%0), %%r8;" " movq %%r8, 24(%0);"
+ " mulxq 8(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " adcx %%rbx, %%r10;" " movq %%r10, 32(%0);"
+ " mulxq 16(%3), %%rbx, %%r13;" " adox %%r11, %%rbx;" " adcx %%r14, %%rbx;" " movq %%rbx, 40(%0);" " mov $0, %%r8;"
+ " mulxq 24(%3), %%r14, %%rdx;" " adox %%r13, %%r14;" " adcx %%rax, %%r14;" " movq %%r14, 48(%0);" " mov $0, %%rax;"
+ " adox %%rdx, %%rax;" " adcx %%r8, %%rax;" " movq %%rax, 56(%0);"
+
+ /* Compute the raw multiplication tmp[1] <- f1[1] * f2[1] */
+
+ /* Compute src1[0] * src2 */
+ " movq 32(%1), %%rdx;"
+ " mulxq 32(%3), %%r8, %%r9;" " xor %%r10d, %%r10d;" " movq %%r8, 64(%0);"
+ " mulxq 40(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " movq %%r10, 72(%0);"
+ " mulxq 48(%3), %%rbx, %%r13;" " adox %%r11, %%rbx;"
+ " mulxq 56(%3), %%r14, %%rdx;" " adox %%r13, %%r14;" " mov $0, %%rax;"
+ " adox %%rdx, %%rax;"
+ /* Compute src1[1] * src2 */
+ " movq 40(%1), %%rdx;"
+ " mulxq 32(%3), %%r8, %%r9;" " xor %%r10d, %%r10d;" " adcxq 72(%0), %%r8;" " movq %%r8, 72(%0);"
+ " mulxq 40(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " adcx %%rbx, %%r10;" " movq %%r10, 80(%0);"
+ " mulxq 48(%3), %%rbx, %%r13;" " adox %%r11, %%rbx;" " adcx %%r14, %%rbx;" " mov $0, %%r8;"
+ " mulxq 56(%3), %%r14, %%rdx;" " adox %%r13, %%r14;" " adcx %%rax, %%r14;" " mov $0, %%rax;"
+ " adox %%rdx, %%rax;" " adcx %%r8, %%rax;"
+ /* Compute src1[2] * src2 */
+ " movq 48(%1), %%rdx;"
+ " mulxq 32(%3), %%r8, %%r9;" " xor %%r10d, %%r10d;" " adcxq 80(%0), %%r8;" " movq %%r8, 80(%0);"
+ " mulxq 40(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " adcx %%rbx, %%r10;" " movq %%r10, 88(%0);"
+ " mulxq 48(%3), %%rbx, %%r13;" " adox %%r11, %%rbx;" " adcx %%r14, %%rbx;" " mov $0, %%r8;"
+ " mulxq 56(%3), %%r14, %%rdx;" " adox %%r13, %%r14;" " adcx %%rax, %%r14;" " mov $0, %%rax;"
+ " adox %%rdx, %%rax;" " adcx %%r8, %%rax;"
+ /* Compute src1[3] * src2 */
+ " movq 56(%1), %%rdx;"
+ " mulxq 32(%3), %%r8, %%r9;" " xor %%r10d, %%r10d;" " adcxq 88(%0), %%r8;" " movq %%r8, 88(%0);"
+ " mulxq 40(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " adcx %%rbx, %%r10;" " movq %%r10, 96(%0);"
+ " mulxq 48(%3), %%rbx, %%r13;" " adox %%r11, %%rbx;" " adcx %%r14, %%rbx;" " movq %%rbx, 104(%0);" " mov $0, %%r8;"
+ " mulxq 56(%3), %%r14, %%rdx;" " adox %%r13, %%r14;" " adcx %%rax, %%r14;" " movq %%r14, 112(%0);" " mov $0, %%rax;"
+ " adox %%rdx, %%rax;" " adcx %%r8, %%rax;" " movq %%rax, 120(%0);"
+ /* Line up pointers */
+ " mov %0, %1;"
+ " mov %2, %0;"
+
+ /* Wrap the results back into the field */
+
+ /* Step 1: Compute dst + carry == tmp_hi * 38 + tmp_lo */
+ " mov $38, %%rdx;"
+ " mulxq 32(%1), %%r8, %%r13;"
+ " xor %k3, %k3;"
+ " adoxq 0(%1), %%r8;"
+ " mulxq 40(%1), %%r9, %%rbx;"
+ " adcx %%r13, %%r9;"
+ " adoxq 8(%1), %%r9;"
+ " mulxq 48(%1), %%r10, %%r13;"
+ " adcx %%rbx, %%r10;"
+ " adoxq 16(%1), %%r10;"
+ " mulxq 56(%1), %%r11, %%rax;"
+ " adcx %%r13, %%r11;"
+ " adoxq 24(%1), %%r11;"
+ " adcx %3, %%rax;"
+ " adox %3, %%rax;"
+ " imul %%rdx, %%rax;"
+
+ /* Step 2: Fold the carry back into dst */
+ " add %%rax, %%r8;"
+ " adcx %3, %%r9;"
+ " movq %%r9, 8(%0);"
+ " adcx %3, %%r10;"
+ " movq %%r10, 16(%0);"
+ " adcx %3, %%r11;"
+ " movq %%r11, 24(%0);"
+
+ /* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */
+ " mov $0, %%rax;"
+ " cmovc %%rdx, %%rax;"
+ " add %%rax, %%r8;"
+ " movq %%r8, 0(%0);"
+
+ /* Step 1: Compute dst + carry == tmp_hi * 38 + tmp_lo */
+ " mov $38, %%rdx;"
+ " mulxq 96(%1), %%r8, %%r13;"
+ " xor %k3, %k3;"
+ " adoxq 64(%1), %%r8;"
+ " mulxq 104(%1), %%r9, %%rbx;"
+ " adcx %%r13, %%r9;"
+ " adoxq 72(%1), %%r9;"
+ " mulxq 112(%1), %%r10, %%r13;"
+ " adcx %%rbx, %%r10;"
+ " adoxq 80(%1), %%r10;"
+ " mulxq 120(%1), %%r11, %%rax;"
+ " adcx %%r13, %%r11;"
+ " adoxq 88(%1), %%r11;"
+ " adcx %3, %%rax;"
+ " adox %3, %%rax;"
+ " imul %%rdx, %%rax;"
+
+ /* Step 2: Fold the carry back into dst */
+ " add %%rax, %%r8;"
+ " adcx %3, %%r9;"
+ " movq %%r9, 40(%0);"
+ " adcx %3, %%r10;"
+ " movq %%r10, 48(%0);"
+ " adcx %3, %%r11;"
+ " movq %%r11, 56(%0);"
+
+ /* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */
+ " mov $0, %%rax;"
+ " cmovc %%rdx, %%rax;"
+ " add %%rax, %%r8;"
+ " movq %%r8, 32(%0);"
+ : "+&r" (tmp), "+&r" (f1), "+&r" (out), "+&r" (f2)
+ :
+ : "%rax", "%rdx", "%r8", "%r9", "%r10", "%r11", "%rbx", "%r13", "%r14", "memory", "cc"
+ );
+}
+
+/* Computes the field multiplication of four-element f1 with value in f2 */
+static inline void fmul_scalar(u64 *out, const u64 *f1, u64 f2)
+{
+ register u64 f2_r asm("rdx") = f2;
+
+ asm volatile(
+ /* Compute the raw multiplication of f1*f2 */
+ " mulxq 0(%2), %%r8, %%rcx;" /* f1[0]*f2 */
+ " mulxq 8(%2), %%r9, %%rbx;" /* f1[1]*f2 */
+ " add %%rcx, %%r9;"
+ " mov $0, %%rcx;"
+ " mulxq 16(%2), %%r10, %%r13;" /* f1[2]*f2 */
+ " adcx %%rbx, %%r10;"
+ " mulxq 24(%2), %%r11, %%rax;" /* f1[3]*f2 */
+ " adcx %%r13, %%r11;"
+ " adcx %%rcx, %%rax;"
+
+ /* Wrap the result back into the field */
+
+ /* Step 1: Compute carry*38 */
+ " mov $38, %%rdx;"
+ " imul %%rdx, %%rax;"
+
+ /* Step 2: Fold the carry back into dst */
+ " add %%rax, %%r8;"
+ " adcx %%rcx, %%r9;"
+ " movq %%r9, 8(%1);"
+ " adcx %%rcx, %%r10;"
+ " movq %%r10, 16(%1);"
+ " adcx %%rcx, %%r11;"
+ " movq %%r11, 24(%1);"
+
+ /* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */
+ " mov $0, %%rax;"
+ " cmovc %%rdx, %%rax;"
+ " add %%rax, %%r8;"
+ " movq %%r8, 0(%1);"
+ : "+&r" (f2_r)
+ : "r" (out), "r" (f1)
+ : "%rax", "%rcx", "%r8", "%r9", "%r10", "%r11", "%rbx", "%r13", "memory", "cc"
+ );
+}
+
+/* Computes p1 <- bit ? p2 : p1 in constant time */
+static inline void cswap2(u64 bit, const u64 *p1, const u64 *p2)
+{
+ asm volatile(
+ /* Invert the polarity of bit to match cmov expectations */
+ " add $18446744073709551615, %0;"
+
+ /* cswap p1[0], p2[0] */
+ " movq 0(%1), %%r8;"
+ " movq 0(%2), %%r9;"
+ " mov %%r8, %%r10;"
+ " cmovc %%r9, %%r8;"
+ " cmovc %%r10, %%r9;"
+ " movq %%r8, 0(%1);"
+ " movq %%r9, 0(%2);"
+
+ /* cswap p1[1], p2[1] */
+ " movq 8(%1), %%r8;"
+ " movq 8(%2), %%r9;"
+ " mov %%r8, %%r10;"
+ " cmovc %%r9, %%r8;"
+ " cmovc %%r10, %%r9;"
+ " movq %%r8, 8(%1);"
+ " movq %%r9, 8(%2);"
+
+ /* cswap p1[2], p2[2] */
+ " movq 16(%1), %%r8;"
+ " movq 16(%2), %%r9;"
+ " mov %%r8, %%r10;"
+ " cmovc %%r9, %%r8;"
+ " cmovc %%r10, %%r9;"
+ " movq %%r8, 16(%1);"
+ " movq %%r9, 16(%2);"
+
+ /* cswap p1[3], p2[3] */
+ " movq 24(%1), %%r8;"
+ " movq 24(%2), %%r9;"
+ " mov %%r8, %%r10;"
+ " cmovc %%r9, %%r8;"
+ " cmovc %%r10, %%r9;"
+ " movq %%r8, 24(%1);"
+ " movq %%r9, 24(%2);"
+
+ /* cswap p1[4], p2[4] */
+ " movq 32(%1), %%r8;"
+ " movq 32(%2), %%r9;"
+ " mov %%r8, %%r10;"
+ " cmovc %%r9, %%r8;"
+ " cmovc %%r10, %%r9;"
+ " movq %%r8, 32(%1);"
+ " movq %%r9, 32(%2);"
+
+ /* cswap p1[5], p2[5] */
+ " movq 40(%1), %%r8;"
+ " movq 40(%2), %%r9;"
+ " mov %%r8, %%r10;"
+ " cmovc %%r9, %%r8;"
+ " cmovc %%r10, %%r9;"
+ " movq %%r8, 40(%1);"
+ " movq %%r9, 40(%2);"
+
+ /* cswap p1[6], p2[6] */
+ " movq 48(%1), %%r8;"
+ " movq 48(%2), %%r9;"
+ " mov %%r8, %%r10;"
+ " cmovc %%r9, %%r8;"
+ " cmovc %%r10, %%r9;"
+ " movq %%r8, 48(%1);"
+ " movq %%r9, 48(%2);"
+
+ /* cswap p1[7], p2[7] */
+ " movq 56(%1), %%r8;"
+ " movq 56(%2), %%r9;"
+ " mov %%r8, %%r10;"
+ " cmovc %%r9, %%r8;"
+ " cmovc %%r10, %%r9;"
+ " movq %%r8, 56(%1);"
+ " movq %%r9, 56(%2);"
+ : "+&r" (bit)
+ : "r" (p1), "r" (p2)
+ : "%r8", "%r9", "%r10", "memory", "cc"
+ );
+}
+
+/* Computes the square of a field element: out <- f * f
+ * Uses the 8-element buffer tmp for intermediate results */
+static inline void fsqr(u64 *out, const u64 *f, u64 *tmp)
+{
+ asm volatile(
+ /* Compute the raw multiplication: tmp <- f * f */
+
+ /* Step 1: Compute all partial products */
+ " movq 0(%1), %%rdx;" /* f[0] */
+ " mulxq 8(%1), %%r8, %%r14;" " xor %%r15d, %%r15d;" /* f[1]*f[0] */
+ " mulxq 16(%1), %%r9, %%r10;" " adcx %%r14, %%r9;" /* f[2]*f[0] */
+ " mulxq 24(%1), %%rax, %%rcx;" " adcx %%rax, %%r10;" /* f[3]*f[0] */
+ " movq 24(%1), %%rdx;" /* f[3] */
+ " mulxq 8(%1), %%r11, %%rbx;" " adcx %%rcx, %%r11;" /* f[1]*f[3] */
+ " mulxq 16(%1), %%rax, %%r13;" " adcx %%rax, %%rbx;" /* f[2]*f[3] */
+ " movq 8(%1), %%rdx;" " adcx %%r15, %%r13;" /* f1 */
+ " mulxq 16(%1), %%rax, %%rcx;" " mov $0, %%r14;" /* f[2]*f[1] */
+
+ /* Step 2: Compute two parallel carry chains */
+ " xor %%r15d, %%r15d;"
+ " adox %%rax, %%r10;"
+ " adcx %%r8, %%r8;"
+ " adox %%rcx, %%r11;"
+ " adcx %%r9, %%r9;"
+ " adox %%r15, %%rbx;"
+ " adcx %%r10, %%r10;"
+ " adox %%r15, %%r13;"
+ " adcx %%r11, %%r11;"
+ " adox %%r15, %%r14;"
+ " adcx %%rbx, %%rbx;"
+ " adcx %%r13, %%r13;"
+ " adcx %%r14, %%r14;"
+
+ /* Step 3: Compute intermediate squares */
+ " movq 0(%1), %%rdx;" " mulx %%rdx, %%rax, %%rcx;" /* f[0]^2 */
+ " movq %%rax, 0(%0);"
+ " add %%rcx, %%r8;" " movq %%r8, 8(%0);"
+ " movq 8(%1), %%rdx;" " mulx %%rdx, %%rax, %%rcx;" /* f[1]^2 */
+ " adcx %%rax, %%r9;" " movq %%r9, 16(%0);"
+ " adcx %%rcx, %%r10;" " movq %%r10, 24(%0);"
+ " movq 16(%1), %%rdx;" " mulx %%rdx, %%rax, %%rcx;" /* f[2]^2 */
+ " adcx %%rax, %%r11;" " movq %%r11, 32(%0);"
+ " adcx %%rcx, %%rbx;" " movq %%rbx, 40(%0);"
+ " movq 24(%1), %%rdx;" " mulx %%rdx, %%rax, %%rcx;" /* f[3]^2 */
+ " adcx %%rax, %%r13;" " movq %%r13, 48(%0);"
+ " adcx %%rcx, %%r14;" " movq %%r14, 56(%0);"
+
+ /* Line up pointers */
+ " mov %0, %1;"
+ " mov %2, %0;"
+
+ /* Wrap the result back into the field */
+
+ /* Step 1: Compute dst + carry == tmp_hi * 38 + tmp_lo */
+ " mov $38, %%rdx;"
+ " mulxq 32(%1), %%r8, %%r13;"
+ " xor %%ecx, %%ecx;"
+ " adoxq 0(%1), %%r8;"
+ " mulxq 40(%1), %%r9, %%rbx;"
+ " adcx %%r13, %%r9;"
+ " adoxq 8(%1), %%r9;"
+ " mulxq 48(%1), %%r10, %%r13;"
+ " adcx %%rbx, %%r10;"
+ " adoxq 16(%1), %%r10;"
+ " mulxq 56(%1), %%r11, %%rax;"
+ " adcx %%r13, %%r11;"
+ " adoxq 24(%1), %%r11;"
+ " adcx %%rcx, %%rax;"
+ " adox %%rcx, %%rax;"
+ " imul %%rdx, %%rax;"
+
+ /* Step 2: Fold the carry back into dst */
+ " add %%rax, %%r8;"
+ " adcx %%rcx, %%r9;"
+ " movq %%r9, 8(%0);"
+ " adcx %%rcx, %%r10;"
+ " movq %%r10, 16(%0);"
+ " adcx %%rcx, %%r11;"
+ " movq %%r11, 24(%0);"
+
+ /* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */
+ " mov $0, %%rax;"
+ " cmovc %%rdx, %%rax;"
+ " add %%rax, %%r8;"
+ " movq %%r8, 0(%0);"
+ : "+&r" (tmp), "+&r" (f), "+&r" (out)
+ :
+ : "%rax", "%rcx", "%rdx", "%r8", "%r9", "%r10", "%r11", "%rbx", "%r13", "%r14", "%r15", "memory", "cc"
+ );
+}
+
+/* Computes two field squarings:
+ * out[0] <- f[0] * f[0]
+ * out[1] <- f[1] * f[1]
+ * Uses the 16-element buffer tmp for intermediate results */
+static inline void fsqr2(u64 *out, const u64 *f, u64 *tmp)
+{
+ asm volatile(
+ /* Step 1: Compute all partial products */
+ " movq 0(%1), %%rdx;" /* f[0] */
+ " mulxq 8(%1), %%r8, %%r14;" " xor %%r15d, %%r15d;" /* f[1]*f[0] */
+ " mulxq 16(%1), %%r9, %%r10;" " adcx %%r14, %%r9;" /* f[2]*f[0] */
+ " mulxq 24(%1), %%rax, %%rcx;" " adcx %%rax, %%r10;" /* f[3]*f[0] */
+ " movq 24(%1), %%rdx;" /* f[3] */
+ " mulxq 8(%1), %%r11, %%rbx;" " adcx %%rcx, %%r11;" /* f[1]*f[3] */
+ " mulxq 16(%1), %%rax, %%r13;" " adcx %%rax, %%rbx;" /* f[2]*f[3] */
+ " movq 8(%1), %%rdx;" " adcx %%r15, %%r13;" /* f1 */
+ " mulxq 16(%1), %%rax, %%rcx;" " mov $0, %%r14;" /* f[2]*f[1] */
+
+ /* Step 2: Compute two parallel carry chains */
+ " xor %%r15d, %%r15d;"
+ " adox %%rax, %%r10;"
+ " adcx %%r8, %%r8;"
+ " adox %%rcx, %%r11;"
+ " adcx %%r9, %%r9;"
+ " adox %%r15, %%rbx;"
+ " adcx %%r10, %%r10;"
+ " adox %%r15, %%r13;"
+ " adcx %%r11, %%r11;"
+ " adox %%r15, %%r14;"
+ " adcx %%rbx, %%rbx;"
+ " adcx %%r13, %%r13;"
+ " adcx %%r14, %%r14;"
+
+ /* Step 3: Compute intermediate squares */
+ " movq 0(%1), %%rdx;" " mulx %%rdx, %%rax, %%rcx;" /* f[0]^2 */
+ " movq %%rax, 0(%0);"
+ " add %%rcx, %%r8;" " movq %%r8, 8(%0);"
+ " movq 8(%1), %%rdx;" " mulx %%rdx, %%rax, %%rcx;" /* f[1]^2 */
+ " adcx %%rax, %%r9;" " movq %%r9, 16(%0);"
+ " adcx %%rcx, %%r10;" " movq %%r10, 24(%0);"
+ " movq 16(%1), %%rdx;" " mulx %%rdx, %%rax, %%rcx;" /* f[2]^2 */
+ " adcx %%rax, %%r11;" " movq %%r11, 32(%0);"
+ " adcx %%rcx, %%rbx;" " movq %%rbx, 40(%0);"
+ " movq 24(%1), %%rdx;" " mulx %%rdx, %%rax, %%rcx;" /* f[3]^2 */
+ " adcx %%rax, %%r13;" " movq %%r13, 48(%0);"
+ " adcx %%rcx, %%r14;" " movq %%r14, 56(%0);"
+
+ /* Step 1: Compute all partial products */
+ " movq 32(%1), %%rdx;" /* f[0] */
+ " mulxq 40(%1), %%r8, %%r14;" " xor %%r15d, %%r15d;" /* f[1]*f[0] */
+ " mulxq 48(%1), %%r9, %%r10;" " adcx %%r14, %%r9;" /* f[2]*f[0] */
+ " mulxq 56(%1), %%rax, %%rcx;" " adcx %%rax, %%r10;" /* f[3]*f[0] */
+ " movq 56(%1), %%rdx;" /* f[3] */
+ " mulxq 40(%1), %%r11, %%rbx;" " adcx %%rcx, %%r11;" /* f[1]*f[3] */
+ " mulxq 48(%1), %%rax, %%r13;" " adcx %%rax, %%rbx;" /* f[2]*f[3] */
+ " movq 40(%1), %%rdx;" " adcx %%r15, %%r13;" /* f1 */
+ " mulxq 48(%1), %%rax, %%rcx;" " mov $0, %%r14;" /* f[2]*f[1] */
+
+ /* Step 2: Compute two parallel carry chains */
+ " xor %%r15d, %%r15d;"
+ " adox %%rax, %%r10;"
+ " adcx %%r8, %%r8;"
+ " adox %%rcx, %%r11;"
+ " adcx %%r9, %%r9;"
+ " adox %%r15, %%rbx;"
+ " adcx %%r10, %%r10;"
+ " adox %%r15, %%r13;"
+ " adcx %%r11, %%r11;"
+ " adox %%r15, %%r14;"
+ " adcx %%rbx, %%rbx;"
+ " adcx %%r13, %%r13;"
+ " adcx %%r14, %%r14;"
+
+ /* Step 3: Compute intermediate squares */
+ " movq 32(%1), %%rdx;" " mulx %%rdx, %%rax, %%rcx;" /* f[0]^2 */
+ " movq %%rax, 64(%0);"
+ " add %%rcx, %%r8;" " movq %%r8, 72(%0);"
+ " movq 40(%1), %%rdx;" " mulx %%rdx, %%rax, %%rcx;" /* f[1]^2 */
+ " adcx %%rax, %%r9;" " movq %%r9, 80(%0);"
+ " adcx %%rcx, %%r10;" " movq %%r10, 88(%0);"
+ " movq 48(%1), %%rdx;" " mulx %%rdx, %%rax, %%rcx;" /* f[2]^2 */
+ " adcx %%rax, %%r11;" " movq %%r11, 96(%0);"
+ " adcx %%rcx, %%rbx;" " movq %%rbx, 104(%0);"
+ " movq 56(%1), %%rdx;" " mulx %%rdx, %%rax, %%rcx;" /* f[3]^2 */
+ " adcx %%rax, %%r13;" " movq %%r13, 112(%0);"
+ " adcx %%rcx, %%r14;" " movq %%r14, 120(%0);"
+
+ /* Line up pointers */
+ " mov %0, %1;"
+ " mov %2, %0;"
+
+ /* Step 1: Compute dst + carry == tmp_hi * 38 + tmp_lo */
+ " mov $38, %%rdx;"
+ " mulxq 32(%1), %%r8, %%r13;"
+ " xor %%ecx, %%ecx;"
+ " adoxq 0(%1), %%r8;"
+ " mulxq 40(%1), %%r9, %%rbx;"
+ " adcx %%r13, %%r9;"
+ " adoxq 8(%1), %%r9;"
+ " mulxq 48(%1), %%r10, %%r13;"
+ " adcx %%rbx, %%r10;"
+ " adoxq 16(%1), %%r10;"
+ " mulxq 56(%1), %%r11, %%rax;"
+ " adcx %%r13, %%r11;"
+ " adoxq 24(%1), %%r11;"
+ " adcx %%rcx, %%rax;"
+ " adox %%rcx, %%rax;"
+ " imul %%rdx, %%rax;"
+
+ /* Step 2: Fold the carry back into dst */
+ " add %%rax, %%r8;"
+ " adcx %%rcx, %%r9;"
+ " movq %%r9, 8(%0);"
+ " adcx %%rcx, %%r10;"
+ " movq %%r10, 16(%0);"
+ " adcx %%rcx, %%r11;"
+ " movq %%r11, 24(%0);"
+
+ /* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */
+ " mov $0, %%rax;"
+ " cmovc %%rdx, %%rax;"
+ " add %%rax, %%r8;"
+ " movq %%r8, 0(%0);"
+
+ /* Step 1: Compute dst + carry == tmp_hi * 38 + tmp_lo */
+ " mov $38, %%rdx;"
+ " mulxq 96(%1), %%r8, %%r13;"
+ " xor %%ecx, %%ecx;"
+ " adoxq 64(%1), %%r8;"
+ " mulxq 104(%1), %%r9, %%rbx;"
+ " adcx %%r13, %%r9;"
+ " adoxq 72(%1), %%r9;"
+ " mulxq 112(%1), %%r10, %%r13;"
+ " adcx %%rbx, %%r10;"
+ " adoxq 80(%1), %%r10;"
+ " mulxq 120(%1), %%r11, %%rax;"
+ " adcx %%r13, %%r11;"
+ " adoxq 88(%1), %%r11;"
+ " adcx %%rcx, %%rax;"
+ " adox %%rcx, %%rax;"
+ " imul %%rdx, %%rax;"
+
+ /* Step 2: Fold the carry back into dst */
+ " add %%rax, %%r8;"
+ " adcx %%rcx, %%r9;"
+ " movq %%r9, 40(%0);"
+ " adcx %%rcx, %%r10;"
+ " movq %%r10, 48(%0);"
+ " adcx %%rcx, %%r11;"
+ " movq %%r11, 56(%0);"
+
+ /* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */
+ " mov $0, %%rax;"
+ " cmovc %%rdx, %%rax;"
+ " add %%rax, %%r8;"
+ " movq %%r8, 32(%0);"
+ : "+&r" (tmp), "+&r" (f), "+&r" (out)
+ :
+ : "%rax", "%rcx", "%rdx", "%r8", "%r9", "%r10", "%r11", "%rbx", "%r13", "%r14", "%r15", "memory", "cc"
+ );
+}
+
+static void point_add_and_double(u64 *q, u64 *p01_tmp1, u64 *tmp2)
+{
+ u64 *nq = p01_tmp1;
+ u64 *nq_p1 = p01_tmp1 + (u32)8U;
+ u64 *tmp1 = p01_tmp1 + (u32)16U;
+ u64 *x1 = q;
+ u64 *x2 = nq;
+ u64 *z2 = nq + (u32)4U;
+ u64 *z3 = nq_p1 + (u32)4U;
+ u64 *a = tmp1;
+ u64 *b = tmp1 + (u32)4U;
+ u64 *ab = tmp1;
+ u64 *dc = tmp1 + (u32)8U;
+ u64 *x3;
+ u64 *z31;
+ u64 *d0;
+ u64 *c0;
+ u64 *a1;
+ u64 *b1;
+ u64 *d;
+ u64 *c;
+ u64 *ab1;
+ u64 *dc1;
+ fadd(a, x2, z2);
+ fsub(b, x2, z2);
+ x3 = nq_p1;
+ z31 = nq_p1 + (u32)4U;
+ d0 = dc;
+ c0 = dc + (u32)4U;
+ fadd(c0, x3, z31);
+ fsub(d0, x3, z31);
+ fmul2(dc, dc, ab, tmp2);
+ fadd(x3, d0, c0);
+ fsub(z31, d0, c0);
+ a1 = tmp1;
+ b1 = tmp1 + (u32)4U;
+ d = tmp1 + (u32)8U;
+ c = tmp1 + (u32)12U;
+ ab1 = tmp1;
+ dc1 = tmp1 + (u32)8U;
+ fsqr2(dc1, ab1, tmp2);
+ fsqr2(nq_p1, nq_p1, tmp2);
+ a1[0U] = c[0U];
+ a1[1U] = c[1U];
+ a1[2U] = c[2U];
+ a1[3U] = c[3U];
+ fsub(c, d, c);
+ fmul_scalar(b1, c, (u64)121665U);
+ fadd(b1, b1, d);
+ fmul2(nq, dc1, ab1, tmp2);
+ fmul(z3, z3, x1, tmp2);
+}
+
+static void point_double(u64 *nq, u64 *tmp1, u64 *tmp2)
+{
+ u64 *x2 = nq;
+ u64 *z2 = nq + (u32)4U;
+ u64 *a = tmp1;
+ u64 *b = tmp1 + (u32)4U;
+ u64 *d = tmp1 + (u32)8U;
+ u64 *c = tmp1 + (u32)12U;
+ u64 *ab = tmp1;
+ u64 *dc = tmp1 + (u32)8U;
+ fadd(a, x2, z2);
+ fsub(b, x2, z2);
+ fsqr2(dc, ab, tmp2);
+ a[0U] = c[0U];
+ a[1U] = c[1U];
+ a[2U] = c[2U];
+ a[3U] = c[3U];
+ fsub(c, d, c);
+ fmul_scalar(b, c, (u64)121665U);
+ fadd(b, b, d);
+ fmul2(nq, dc, ab, tmp2);
+}
+
+static void montgomery_ladder(u64 *out, const u8 *key, u64 *init1)
+{
+ u64 tmp2[16U] = { 0U };
+ u64 p01_tmp1_swap[33U] = { 0U };
+ u64 *p0 = p01_tmp1_swap;
+ u64 *p01 = p01_tmp1_swap;
+ u64 *p03 = p01;
+ u64 *p11 = p01 + (u32)8U;
+ u64 *x0;
+ u64 *z0;
+ u64 *p01_tmp1;
+ u64 *p01_tmp11;
+ u64 *nq10;
+ u64 *nq_p11;
+ u64 *swap1;
+ u64 sw0;
+ u64 *nq1;
+ u64 *tmp1;
+ memcpy(p11, init1, (u32)8U * sizeof(init1[0U]));
+ x0 = p03;
+ z0 = p03 + (u32)4U;
+ x0[0U] = (u64)1U;
+ x0[1U] = (u64)0U;
+ x0[2U] = (u64)0U;
+ x0[3U] = (u64)0U;
+ z0[0U] = (u64)0U;
+ z0[1U] = (u64)0U;
+ z0[2U] = (u64)0U;
+ z0[3U] = (u64)0U;
+ p01_tmp1 = p01_tmp1_swap;
+ p01_tmp11 = p01_tmp1_swap;
+ nq10 = p01_tmp1_swap;
+ nq_p11 = p01_tmp1_swap + (u32)8U;
+ swap1 = p01_tmp1_swap + (u32)32U;
+ cswap2((u64)1U, nq10, nq_p11);
+ point_add_and_double(init1, p01_tmp11, tmp2);
+ swap1[0U] = (u64)1U;
+ {
+ u32 i;
+ for (i = (u32)0U; i < (u32)251U; i = i + (u32)1U) {
+ u64 *p01_tmp12 = p01_tmp1_swap;
+ u64 *swap2 = p01_tmp1_swap + (u32)32U;
+ u64 *nq2 = p01_tmp12;
+ u64 *nq_p12 = p01_tmp12 + (u32)8U;
+ u64 bit = (u64)(key[((u32)253U - i) / (u32)8U] >> ((u32)253U - i) % (u32)8U & (u8)1U);
+ u64 sw = swap2[0U] ^ bit;
+ cswap2(sw, nq2, nq_p12);
+ point_add_and_double(init1, p01_tmp12, tmp2);
+ swap2[0U] = bit;
+ }
+ }
+ sw0 = swap1[0U];
+ cswap2(sw0, nq10, nq_p11);
+ nq1 = p01_tmp1;
+ tmp1 = p01_tmp1 + (u32)16U;
+ point_double(nq1, tmp1, tmp2);
+ point_double(nq1, tmp1, tmp2);
+ point_double(nq1, tmp1, tmp2);
+ memcpy(out, p0, (u32)8U * sizeof(p0[0U]));
+
+ memzero_explicit(tmp2, sizeof(tmp2));
+ memzero_explicit(p01_tmp1_swap, sizeof(p01_tmp1_swap));
+}
+
+static void fsquare_times(u64 *o, const u64 *inp, u64 *tmp, u32 n1)
+{
+ u32 i;
+ fsqr(o, inp, tmp);
+ for (i = (u32)0U; i < n1 - (u32)1U; i = i + (u32)1U)
+ fsqr(o, o, tmp);
+}
+
+static void finv(u64 *o, const u64 *i, u64 *tmp)
+{
+ u64 t1[16U] = { 0U };
+ u64 *a0 = t1;
+ u64 *b = t1 + (u32)4U;
+ u64 *c = t1 + (u32)8U;
+ u64 *t00 = t1 + (u32)12U;
+ u64 *tmp1 = tmp;
+ u64 *a;
+ u64 *t0;
+ fsquare_times(a0, i, tmp1, (u32)1U);
+ fsquare_times(t00, a0, tmp1, (u32)2U);
+ fmul(b, t00, i, tmp);
+ fmul(a0, b, a0, tmp);
+ fsquare_times(t00, a0, tmp1, (u32)1U);
+ fmul(b, t00, b, tmp);
+ fsquare_times(t00, b, tmp1, (u32)5U);
+ fmul(b, t00, b, tmp);
+ fsquare_times(t00, b, tmp1, (u32)10U);
+ fmul(c, t00, b, tmp);
+ fsquare_times(t00, c, tmp1, (u32)20U);
+ fmul(t00, t00, c, tmp);
+ fsquare_times(t00, t00, tmp1, (u32)10U);
+ fmul(b, t00, b, tmp);
+ fsquare_times(t00, b, tmp1, (u32)50U);
+ fmul(c, t00, b, tmp);
+ fsquare_times(t00, c, tmp1, (u32)100U);
+ fmul(t00, t00, c, tmp);
+ fsquare_times(t00, t00, tmp1, (u32)50U);
+ fmul(t00, t00, b, tmp);
+ fsquare_times(t00, t00, tmp1, (u32)5U);
+ a = t1;
+ t0 = t1 + (u32)12U;
+ fmul(o, t0, a, tmp);
+}
+
+static void store_felem(u64 *b, u64 *f)
+{
+ u64 f30 = f[3U];
+ u64 top_bit0 = f30 >> (u32)63U;
+ u64 f31;
+ u64 top_bit;
+ u64 f0;
+ u64 f1;
+ u64 f2;
+ u64 f3;
+ u64 m0;
+ u64 m1;
+ u64 m2;
+ u64 m3;
+ u64 mask;
+ u64 f0_;
+ u64 f1_;
+ u64 f2_;
+ u64 f3_;
+ u64 o0;
+ u64 o1;
+ u64 o2;
+ u64 o3;
+ f[3U] = f30 & (u64)0x7fffffffffffffffU;
+ add_scalar(f, f, (u64)19U * top_bit0);
+ f31 = f[3U];
+ top_bit = f31 >> (u32)63U;
+ f[3U] = f31 & (u64)0x7fffffffffffffffU;
+ add_scalar(f, f, (u64)19U * top_bit);
+ f0 = f[0U];
+ f1 = f[1U];
+ f2 = f[2U];
+ f3 = f[3U];
+ m0 = gte_mask(f0, (u64)0xffffffffffffffedU);
+ m1 = eq_mask(f1, (u64)0xffffffffffffffffU);
+ m2 = eq_mask(f2, (u64)0xffffffffffffffffU);
+ m3 = eq_mask(f3, (u64)0x7fffffffffffffffU);
+ mask = ((m0 & m1) & m2) & m3;
+ f0_ = f0 - (mask & (u64)0xffffffffffffffedU);
+ f1_ = f1 - (mask & (u64)0xffffffffffffffffU);
+ f2_ = f2 - (mask & (u64)0xffffffffffffffffU);
+ f3_ = f3 - (mask & (u64)0x7fffffffffffffffU);
+ o0 = f0_;
+ o1 = f1_;
+ o2 = f2_;
+ o3 = f3_;
+ b[0U] = o0;
+ b[1U] = o1;
+ b[2U] = o2;
+ b[3U] = o3;
+}
+
+static void encode_point(u8 *o, const u64 *i)
+{
+ const u64 *x = i;
+ const u64 *z = i + (u32)4U;
+ u64 tmp[4U] = { 0U };
+ u64 tmp_w[16U] = { 0U };
+ finv(tmp, z, tmp_w);
+ fmul(tmp, tmp, x, tmp_w);
+ store_felem((u64 *)o, tmp);
+}
+
+static void curve25519_ever64(u8 *out, const u8 *priv, const u8 *pub)
+{
+ u64 init1[8U] = { 0U };
+ u64 tmp[4U] = { 0U };
+ u64 tmp3;
+ u64 *x;
+ u64 *z;
+ {
+ u32 i;
+ for (i = (u32)0U; i < (u32)4U; i = i + (u32)1U) {
+ u64 *os = tmp;
+ const u8 *bj = pub + i * (u32)8U;
+ u64 u = *(u64 *)bj;
+ u64 r = u;
+ u64 x0 = r;
+ os[i] = x0;
+ }
+ }
+ tmp3 = tmp[3U];
+ tmp[3U] = tmp3 & (u64)0x7fffffffffffffffU;
+ x = init1;
+ z = init1 + (u32)4U;
+ z[0U] = (u64)1U;
+ z[1U] = (u64)0U;
+ z[2U] = (u64)0U;
+ z[3U] = (u64)0U;
+ x[0U] = tmp[0U];
+ x[1U] = tmp[1U];
+ x[2U] = tmp[2U];
+ x[3U] = tmp[3U];
+ montgomery_ladder(init1, priv, init1);
+ encode_point(out, init1);
+}
+
+/* The below constants were generated using this sage script:
+ *
+ * #!/usr/bin/env sage
+ * import sys
+ * from sage.all import *
+ * def limbs(n):
+ * n = int(n)
+ * l = ((n >> 0) % 2^64, (n >> 64) % 2^64, (n >> 128) % 2^64, (n >> 192) % 2^64)
+ * return "0x%016xULL, 0x%016xULL, 0x%016xULL, 0x%016xULL" % l
+ * ec = EllipticCurve(GF(2^255 - 19), [0, 486662, 0, 1, 0])
+ * p_minus_s = (ec.lift_x(9) - ec.lift_x(1))[0]
+ * print("static const u64 p_minus_s[] = { %s };\n" % limbs(p_minus_s))
+ * print("static const u64 table_ladder[] = {")
+ * p = ec.lift_x(9)
+ * for i in range(252):
+ * l = (p[0] + p[2]) / (p[0] - p[2])
+ * print(("\t%s" + ("," if i != 251 else "")) % limbs(l))
+ * p = p * 2
+ * print("};")
+ *
+ */
+
+static const u64 p_minus_s[] = { 0x816b1e0137d48290ULL, 0x440f6a51eb4d1207ULL, 0x52385f46dca2b71dULL, 0x215132111d8354cbULL };
+
+static const u64 table_ladder[] = {
+ 0xfffffffffffffff3ULL, 0xffffffffffffffffULL, 0xffffffffffffffffULL, 0x5fffffffffffffffULL,
+ 0x6b8220f416aafe96ULL, 0x82ebeb2b4f566a34ULL, 0xd5a9a5b075a5950fULL, 0x5142b2cf4b2488f4ULL,
+ 0x6aaebc750069680cULL, 0x89cf7820a0f99c41ULL, 0x2a58d9183b56d0f4ULL, 0x4b5aca80e36011a4ULL,
+ 0x329132348c29745dULL, 0xf4a2e616e1642fd7ULL, 0x1e45bb03ff67bc34ULL, 0x306912d0f42a9b4aULL,
+ 0xff886507e6af7154ULL, 0x04f50e13dfeec82fULL, 0xaa512fe82abab5ceULL, 0x174e251a68d5f222ULL,
+ 0xcf96700d82028898ULL, 0x1743e3370a2c02c5ULL, 0x379eec98b4e86eaaULL, 0x0c59888a51e0482eULL,
+ 0xfbcbf1d699b5d189ULL, 0xacaef0d58e9fdc84ULL, 0xc1c20d06231f7614ULL, 0x2938218da274f972ULL,
+ 0xf6af49beff1d7f18ULL, 0xcc541c22387ac9c2ULL, 0x96fcc9ef4015c56bULL, 0x69c1627c690913a9ULL,
+ 0x7a86fd2f4733db0eULL, 0xfdb8c4f29e087de9ULL, 0x095e4b1a8ea2a229ULL, 0x1ad7a7c829b37a79ULL,
+ 0x342d89cad17ea0c0ULL, 0x67bedda6cced2051ULL, 0x19ca31bf2bb42f74ULL, 0x3df7b4c84980acbbULL,
+ 0xa8c6444dc80ad883ULL, 0xb91e440366e3ab85ULL, 0xc215cda00164f6d8ULL, 0x3d867c6ef247e668ULL,
+ 0xc7dd582bcc3e658cULL, 0xfd2c4748ee0e5528ULL, 0xa0fd9b95cc9f4f71ULL, 0x7529d871b0675ddfULL,
+ 0xb8f568b42d3cbd78ULL, 0x1233011b91f3da82ULL, 0x2dce6ccd4a7c3b62ULL, 0x75e7fc8e9e498603ULL,
+ 0x2f4f13f1fcd0b6ecULL, 0xf1a8ca1f29ff7a45ULL, 0xc249c1a72981e29bULL, 0x6ebe0dbb8c83b56aULL,
+ 0x7114fa8d170bb222ULL, 0x65a2dcd5bf93935fULL, 0xbdc41f68b59c979aULL, 0x2f0eef79a2ce9289ULL,
+ 0x42ecbf0c083c37ceULL, 0x2930bc09ec496322ULL, 0xf294b0c19cfeac0dULL, 0x3780aa4bedfabb80ULL,
+ 0x56c17d3e7cead929ULL, 0xe7cb4beb2e5722c5ULL, 0x0ce931732dbfe15aULL, 0x41b883c7621052f8ULL,
+ 0xdbf75ca0c3d25350ULL, 0x2936be086eb1e351ULL, 0xc936e03cb4a9b212ULL, 0x1d45bf82322225aaULL,
+ 0xe81ab1036a024cc5ULL, 0xe212201c304c9a72ULL, 0xc5d73fba6832b1fcULL, 0x20ffdb5a4d839581ULL,
+ 0xa283d367be5d0fadULL, 0x6c2b25ca8b164475ULL, 0x9d4935467caaf22eULL, 0x5166408eee85ff49ULL,
+ 0x3c67baa2fab4e361ULL, 0xb3e433c67ef35cefULL, 0x5259729241159b1cULL, 0x6a621892d5b0ab33ULL,
+ 0x20b74a387555cdcbULL, 0x532aa10e1208923fULL, 0xeaa17b7762281dd1ULL, 0x61ab3443f05c44bfULL,
+ 0x257a6c422324def8ULL, 0x131c6c1017e3cf7fULL, 0x23758739f630a257ULL, 0x295a407a01a78580ULL,
+ 0xf8c443246d5da8d9ULL, 0x19d775450c52fa5dULL, 0x2afcfc92731bf83dULL, 0x7d10c8e81b2b4700ULL,
+ 0xc8e0271f70baa20bULL, 0x993748867ca63957ULL, 0x5412efb3cb7ed4bbULL, 0x3196d36173e62975ULL,
+ 0xde5bcad141c7dffcULL, 0x47cc8cd2b395c848ULL, 0xa34cd942e11af3cbULL, 0x0256dbf2d04ecec2ULL,
+ 0x875ab7e94b0e667fULL, 0xcad4dd83c0850d10ULL, 0x47f12e8f4e72c79fULL, 0x5f1a87bb8c85b19bULL,
+ 0x7ae9d0b6437f51b8ULL, 0x12c7ce5518879065ULL, 0x2ade09fe5cf77aeeULL, 0x23a05a2f7d2c5627ULL,
+ 0x5908e128f17c169aULL, 0xf77498dd8ad0852dULL, 0x74b4c4ceab102f64ULL, 0x183abadd10139845ULL,
+ 0xb165ba8daa92aaacULL, 0xd5c5ef9599386705ULL, 0xbe2f8f0cf8fc40d1ULL, 0x2701e635ee204514ULL,
+ 0x629fa80020156514ULL, 0xf223868764a8c1ceULL, 0x5b894fff0b3f060eULL, 0x60d9944cf708a3faULL,
+ 0xaeea001a1c7a201fULL, 0xebf16a633ee2ce63ULL, 0x6f7709594c7a07e1ULL, 0x79b958150d0208cbULL,
+ 0x24b55e5301d410e7ULL, 0xe3a34edff3fdc84dULL, 0xd88768e4904032d8ULL, 0x131384427b3aaeecULL,
+ 0x8405e51286234f14ULL, 0x14dc4739adb4c529ULL, 0xb8a2b5b250634ffdULL, 0x2fe2a94ad8a7ff93ULL,
+ 0xec5c57efe843faddULL, 0x2843ce40f0bb9918ULL, 0xa4b561d6cf3d6305ULL, 0x743629bde8fb777eULL,
+ 0x343edd46bbaf738fULL, 0xed981828b101a651ULL, 0xa401760b882c797aULL, 0x1fc223e28dc88730ULL,
+ 0x48604e91fc0fba0eULL, 0xb637f78f052c6fa4ULL, 0x91ccac3d09e9239cULL, 0x23f7eed4437a687cULL,
+ 0x5173b1118d9bd800ULL, 0x29d641b63189d4a7ULL, 0xfdbf177988bbc586ULL, 0x2959894fcad81df5ULL,
+ 0xaebc8ef3b4bbc899ULL, 0x4148995ab26992b9ULL, 0x24e20b0134f92cfbULL, 0x40d158894a05dee8ULL,
+ 0x46b00b1185af76f6ULL, 0x26bac77873187a79ULL, 0x3dc0bf95ab8fff5fULL, 0x2a608bd8945524d7ULL,
+ 0x26449588bd446302ULL, 0x7c4bc21c0388439cULL, 0x8e98a4f383bd11b2ULL, 0x26218d7bc9d876b9ULL,
+ 0xe3081542997c178aULL, 0x3c2d29a86fb6606fULL, 0x5c217736fa279374ULL, 0x7dde05734afeb1faULL,
+ 0x3bf10e3906d42babULL, 0xe4f7803e1980649cULL, 0xe6053bf89595bf7aULL, 0x394faf38da245530ULL,
+ 0x7a8efb58896928f4ULL, 0xfbc778e9cc6a113cULL, 0x72670ce330af596fULL, 0x48f222a81d3d6cf7ULL,
+ 0xf01fce410d72caa7ULL, 0x5a20ecc7213b5595ULL, 0x7bc21165c1fa1483ULL, 0x07f89ae31da8a741ULL,
+ 0x05d2c2b4c6830ff9ULL, 0xd43e330fc6316293ULL, 0xa5a5590a96d3a904ULL, 0x705edb91a65333b6ULL,
+ 0x048ee15e0bb9a5f7ULL, 0x3240cfca9e0aaf5dULL, 0x8f4b71ceedc4a40bULL, 0x621c0da3de544a6dULL,
+ 0x92872836a08c4091ULL, 0xce8375b010c91445ULL, 0x8a72eb524f276394ULL, 0x2667fcfa7ec83635ULL,
+ 0x7f4c173345e8752aULL, 0x061b47feee7079a5ULL, 0x25dd9afa9f86ff34ULL, 0x3780cef5425dc89cULL,
+ 0x1a46035a513bb4e9ULL, 0x3e1ef379ac575adaULL, 0xc78c5f1c5fa24b50ULL, 0x321a967634fd9f22ULL,
+ 0x946707b8826e27faULL, 0x3dca84d64c506fd0ULL, 0xc189218075e91436ULL, 0x6d9284169b3b8484ULL,
+ 0x3a67e840383f2ddfULL, 0x33eec9a30c4f9b75ULL, 0x3ec7c86fa783ef47ULL, 0x26ec449fbac9fbc4ULL,
+ 0x5c0f38cba09b9e7dULL, 0x81168cc762a3478cULL, 0x3e23b0d306fc121cULL, 0x5a238aa0a5efdcddULL,
+ 0x1ba26121c4ea43ffULL, 0x36f8c77f7c8832b5ULL, 0x88fbea0b0adcf99aULL, 0x5ca9938ec25bebf9ULL,
+ 0xd5436a5e51fccda0ULL, 0x1dbc4797c2cd893bULL, 0x19346a65d3224a08ULL, 0x0f5034e49b9af466ULL,
+ 0xf23c3967a1e0b96eULL, 0xe58b08fa867a4d88ULL, 0xfb2fabc6a7341679ULL, 0x2a75381eb6026946ULL,
+ 0xc80a3be4c19420acULL, 0x66b1f6c681f2b6dcULL, 0x7cf7036761e93388ULL, 0x25abbbd8a660a4c4ULL,
+ 0x91ea12ba14fd5198ULL, 0x684950fc4a3cffa9ULL, 0xf826842130f5ad28ULL, 0x3ea988f75301a441ULL,
+ 0xc978109a695f8c6fULL, 0x1746eb4a0530c3f3ULL, 0x444d6d77b4459995ULL, 0x75952b8c054e5cc7ULL,
+ 0xa3703f7915f4d6aaULL, 0x66c346202f2647d8ULL, 0xd01469df811d644bULL, 0x77fea47d81a5d71fULL,
+ 0xc5e9529ef57ca381ULL, 0x6eeeb4b9ce2f881aULL, 0xb6e91a28e8009bd6ULL, 0x4b80be3e9afc3fecULL,
+ 0x7e3773c526aed2c5ULL, 0x1b4afcb453c9a49dULL, 0xa920bdd7baffb24dULL, 0x7c54699f122d400eULL,
+ 0xef46c8e14fa94bc8ULL, 0xe0b074ce2952ed5eULL, 0xbea450e1dbd885d5ULL, 0x61b68649320f712cULL,
+ 0x8a485f7309ccbdd1ULL, 0xbd06320d7d4d1a2dULL, 0x25232973322dbef4ULL, 0x445dc4758c17f770ULL,
+ 0xdb0434177cc8933cULL, 0xed6fe82175ea059fULL, 0x1efebefdc053db34ULL, 0x4adbe867c65daf99ULL,
+ 0x3acd71a2a90609dfULL, 0xe5e991856dd04050ULL, 0x1ec69b688157c23cULL, 0x697427f6885cfe4dULL,
+ 0xd7be7b9b65e1a851ULL, 0xa03d28d522c536ddULL, 0x28399d658fd2b645ULL, 0x49e5b7e17c2641e1ULL,
+ 0x6f8c3a98700457a4ULL, 0x5078f0a25ebb6778ULL, 0xd13c3ccbc382960fULL, 0x2e003258a7df84b1ULL,
+ 0x8ad1f39be6296a1cULL, 0xc1eeaa652a5fbfb2ULL, 0x33ee0673fd26f3cbULL, 0x59256173a69d2cccULL,
+ 0x41ea07aa4e18fc41ULL, 0xd9fc19527c87a51eULL, 0xbdaacb805831ca6fULL, 0x445b652dc916694fULL,
+ 0xce92a3a7f2172315ULL, 0x1edc282de11b9964ULL, 0xa1823aafe04c314aULL, 0x790a2d94437cf586ULL,
+ 0x71c447fb93f6e009ULL, 0x8922a56722845276ULL, 0xbf70903b204f5169ULL, 0x2f7a89891ba319feULL,
+ 0x02a08eb577e2140cULL, 0xed9a4ed4427bdcf4ULL, 0x5253ec44e4323cd1ULL, 0x3e88363c14e9355bULL,
+ 0xaa66c14277110b8cULL, 0x1ae0391610a23390ULL, 0x2030bd12c93fc2a2ULL, 0x3ee141579555c7abULL,
+ 0x9214de3a6d6e7d41ULL, 0x3ccdd88607f17efeULL, 0x674f1288f8e11217ULL, 0x5682250f329f93d0ULL,
+ 0x6cf00b136d2e396eULL, 0x6e4cf86f1014debfULL, 0x5930b1b5bfcc4e83ULL, 0x047069b48aba16b6ULL,
+ 0x0d4ce4ab69b20793ULL, 0xb24db91a97d0fb9eULL, 0xcdfa50f54e00d01dULL, 0x221b1085368bddb5ULL,
+ 0xe7e59468b1e3d8d2ULL, 0x53c56563bd122f93ULL, 0xeee8a903e0663f09ULL, 0x61efa662cbbe3d42ULL,
+ 0x2cf8ddddde6eab2aULL, 0x9bf80ad51435f231ULL, 0x5deadacec9f04973ULL, 0x29275b5d41d29b27ULL,
+ 0xcfde0f0895ebf14fULL, 0xb9aab96b054905a7ULL, 0xcae80dd9a1c420fdULL, 0x0a63bf2f1673bbc7ULL,
+ 0x092f6e11958fbc8cULL, 0x672a81e804822fadULL, 0xcac8351560d52517ULL, 0x6f3f7722c8f192f8ULL,
+ 0xf8ba90ccc2e894b7ULL, 0x2c7557a438ff9f0dULL, 0x894d1d855ae52359ULL, 0x68e122157b743d69ULL,
+ 0xd87e5570cfb919f3ULL, 0x3f2cdecd95798db9ULL, 0x2121154710c0a2ceULL, 0x3c66a115246dc5b2ULL,
+ 0xcbedc562294ecb72ULL, 0xba7143c36a280b16ULL, 0x9610c2efd4078b67ULL, 0x6144735d946a4b1eULL,
+ 0x536f111ed75b3350ULL, 0x0211db8c2041d81bULL, 0xf93cb1000e10413cULL, 0x149dfd3c039e8876ULL,
+ 0xd479dde46b63155bULL, 0xb66e15e93c837976ULL, 0xdafde43b1f13e038ULL, 0x5fafda1a2e4b0b35ULL,
+ 0x3600bbdf17197581ULL, 0x3972050bbe3cd2c2ULL, 0x5938906dbdd5be86ULL, 0x34fce5e43f9b860fULL,
+ 0x75a8a4cd42d14d02ULL, 0x828dabc53441df65ULL, 0x33dcabedd2e131d3ULL, 0x3ebad76fb814d25fULL,
+ 0xd4906f566f70e10fULL, 0x5d12f7aa51690f5aULL, 0x45adb16e76cefcf2ULL, 0x01f768aead232999ULL,
+ 0x2b6cc77b6248febdULL, 0x3cd30628ec3aaffdULL, 0xce1c0b80d4ef486aULL, 0x4c3bff2ea6f66c23ULL,
+ 0x3f2ec4094aeaeb5fULL, 0x61b19b286e372ca7ULL, 0x5eefa966de2a701dULL, 0x23b20565de55e3efULL,
+ 0xe301ca5279d58557ULL, 0x07b2d4ce27c2874fULL, 0xa532cd8a9dcf1d67ULL, 0x2a52fee23f2bff56ULL,
+ 0x8624efb37cd8663dULL, 0xbbc7ac20ffbd7594ULL, 0x57b85e9c82d37445ULL, 0x7b3052cb86a6ec66ULL,
+ 0x3482f0ad2525e91eULL, 0x2cb68043d28edca0ULL, 0xaf4f6d052e1b003aULL, 0x185f8c2529781b0aULL,
+ 0xaa41de5bd80ce0d6ULL, 0x9407b2416853e9d6ULL, 0x563ec36e357f4c3aULL, 0x4cc4b8dd0e297bceULL,
+ 0xa2fc1a52ffb8730eULL, 0x1811f16e67058e37ULL, 0x10f9a366cddf4ee1ULL, 0x72f4a0c4a0b9f099ULL,
+ 0x8c16c06f663f4ea7ULL, 0x693b3af74e970fbaULL, 0x2102e7f1d69ec345ULL, 0x0ba53cbc968a8089ULL,
+ 0xca3d9dc7fea15537ULL, 0x4c6824bb51536493ULL, 0xb9886314844006b1ULL, 0x40d2a72ab454cc60ULL,
+ 0x5936a1b712570975ULL, 0x91b9d648debda657ULL, 0x3344094bb64330eaULL, 0x006ba10d12ee51d0ULL,
+ 0x19228468f5de5d58ULL, 0x0eb12f4c38cc05b0ULL, 0xa1039f9dd5601990ULL, 0x4502d4ce4fff0e0bULL,
+ 0xeb2054106837c189ULL, 0xd0f6544c6dd3b93cULL, 0x40727064c416d74fULL, 0x6e15c6114b502ef0ULL,
+ 0x4df2a398cfb1a76bULL, 0x11256c7419f2f6b1ULL, 0x4a497962066e6043ULL, 0x705b3aab41355b44ULL,
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+ 0x7b0b9239fa75e03eULL, 0xefe9fb684633c083ULL, 0x98a35fbe391a7793ULL, 0x6065510fe2d0fe34ULL,
+ 0x55cb668548abad0cULL, 0xb4584548da87e527ULL, 0x2c43ecea0107c1ddULL, 0x526028809372de35ULL,
+ 0x3415c56af9213b1fULL, 0x5bee1a4d017e98dbULL, 0x13f6b105b5cf709bULL, 0x5ff20e3482b29ab6ULL,
+ 0x0aa29c75cc2e6c90ULL, 0xfc7d73ca3a70e206ULL, 0x899fc38fc4b5c515ULL, 0x250386b124ffc207ULL,
+ 0x54ea28d5ae3d2b56ULL, 0x9913149dd6de60ceULL, 0x16694fc58f06d6c1ULL, 0x46b23975eb018fc7ULL,
+ 0x470a6a0fb4b7b4e2ULL, 0x5d92475a8f7253deULL, 0xabeee5b52fbd3adbULL, 0x7fa20801a0806968ULL,
+ 0x76f3faf19f7714d2ULL, 0xb3e840c12f4660c3ULL, 0x0fb4cd8df212744eULL, 0x4b065a251d3a2dd2ULL,
+ 0x5cebde383d77cd4aULL, 0x6adf39df882c9cb1ULL, 0xa2dd242eb09af759ULL, 0x3147c0e50e5f6422ULL,
+ 0x164ca5101d1350dbULL, 0xf8d13479c33fc962ULL, 0xe640ce4d13e5da08ULL, 0x4bdee0c45061f8baULL,
+ 0xd7c46dc1a4edb1c9ULL, 0x5514d7b6437fd98aULL, 0x58942f6bb2a1c00bULL, 0x2dffb2ab1d70710eULL,
+ 0xccdfcf2fc18b6d68ULL, 0xa8ebcba8b7806167ULL, 0x980697f95e2937e3ULL, 0x02fbba1cd0126e8cULL
+};
+
+static void curve25519_ever64_base(u8 *out, const u8 *priv)
+{
+ u64 swap = 1;
+ int i, j, k;
+ u64 tmp[16 + 32 + 4];
+ u64 *x1 = &tmp[0];
+ u64 *z1 = &tmp[4];
+ u64 *x2 = &tmp[8];
+ u64 *z2 = &tmp[12];
+ u64 *xz1 = &tmp[0];
+ u64 *xz2 = &tmp[8];
+ u64 *a = &tmp[0 + 16];
+ u64 *b = &tmp[4 + 16];
+ u64 *c = &tmp[8 + 16];
+ u64 *ab = &tmp[0 + 16];
+ u64 *abcd = &tmp[0 + 16];
+ u64 *ef = &tmp[16 + 16];
+ u64 *efgh = &tmp[16 + 16];
+ u64 *key = &tmp[0 + 16 + 32];
+
+ memcpy(key, priv, 32);
+ ((u8 *)key)[0] &= 248;
+ ((u8 *)key)[31] = (((u8 *)key)[31] & 127) | 64;
+
+ x1[0] = 1, x1[1] = x1[2] = x1[3] = 0;
+ z1[0] = 1, z1[1] = z1[2] = z1[3] = 0;
+ z2[0] = 1, z2[1] = z2[2] = z2[3] = 0;
+ memcpy(x2, p_minus_s, sizeof(p_minus_s));
+
+ j = 3;
+ for (i = 0; i < 4; ++i) {
+ while (j < (const int[]){ 64, 64, 64, 63 }[i]) {
+ u64 bit = (key[i] >> j) & 1;
+ k = (64 * i + j - 3);
+ swap = swap ^ bit;
+ cswap2(swap, xz1, xz2);
+ swap = bit;
+ fsub(b, x1, z1);
+ fadd(a, x1, z1);
+ fmul(c, &table_ladder[4 * k], b, ef);
+ fsub(b, a, c);
+ fadd(a, a, c);
+ fsqr2(ab, ab, efgh);
+ fmul2(xz1, xz2, ab, efgh);
+ ++j;
+ }
+ j = 0;
+ }
+
+ point_double(xz1, abcd, efgh);
+ point_double(xz1, abcd, efgh);
+ point_double(xz1, abcd, efgh);
+ encode_point(out, xz1);
+
+ memzero_explicit(tmp, sizeof(tmp));
+}
+
+static __ro_after_init DEFINE_STATIC_KEY_FALSE(curve25519_use_bmi2_adx);
+
+void curve25519_arch(u8 mypublic[CURVE25519_KEY_SIZE],
+ const u8 secret[CURVE25519_KEY_SIZE],
+ const u8 basepoint[CURVE25519_KEY_SIZE])
+{
+ if (static_branch_likely(&curve25519_use_bmi2_adx))
+ curve25519_ever64(mypublic, secret, basepoint);
+ else
+ curve25519_generic(mypublic, secret, basepoint);
+}
+EXPORT_SYMBOL(curve25519_arch);
+
+void curve25519_base_arch(u8 pub[CURVE25519_KEY_SIZE],
+ const u8 secret[CURVE25519_KEY_SIZE])
+{
+ if (static_branch_likely(&curve25519_use_bmi2_adx))
+ curve25519_ever64_base(pub, secret);
+ else
+ curve25519_generic(pub, secret, curve25519_base_point);
+}
+EXPORT_SYMBOL(curve25519_base_arch);
+
+static int curve25519_set_secret(struct crypto_kpp *tfm, const void *buf,
+ unsigned int len)
+{
+ u8 *secret = kpp_tfm_ctx(tfm);
+
+ if (!len)
+ curve25519_generate_secret(secret);
+ else if (len == CURVE25519_KEY_SIZE &&
+ crypto_memneq(buf, curve25519_null_point, CURVE25519_KEY_SIZE))
+ memcpy(secret, buf, CURVE25519_KEY_SIZE);
+ else
+ return -EINVAL;
+ return 0;
+}
+
+static int curve25519_generate_public_key(struct kpp_request *req)
+{
+ struct crypto_kpp *tfm = crypto_kpp_reqtfm(req);
+ const u8 *secret = kpp_tfm_ctx(tfm);
+ u8 buf[CURVE25519_KEY_SIZE];
+ int copied, nbytes;
+
+ if (req->src)
+ return -EINVAL;
+
+ curve25519_base_arch(buf, secret);
+
+ /* might want less than we've got */
+ nbytes = min_t(size_t, CURVE25519_KEY_SIZE, req->dst_len);
+ copied = sg_copy_from_buffer(req->dst, sg_nents_for_len(req->dst,
+ nbytes),
+ buf, nbytes);
+ if (copied != nbytes)
+ return -EINVAL;
+ return 0;
+}
+
+static int curve25519_compute_shared_secret(struct kpp_request *req)
+{
+ struct crypto_kpp *tfm = crypto_kpp_reqtfm(req);
+ const u8 *secret = kpp_tfm_ctx(tfm);
+ u8 public_key[CURVE25519_KEY_SIZE];
+ u8 buf[CURVE25519_KEY_SIZE];
+ int copied, nbytes;
+
+ if (!req->src)
+ return -EINVAL;
+
+ copied = sg_copy_to_buffer(req->src,
+ sg_nents_for_len(req->src,
+ CURVE25519_KEY_SIZE),
+ public_key, CURVE25519_KEY_SIZE);
+ if (copied != CURVE25519_KEY_SIZE)
+ return -EINVAL;
+
+ curve25519_arch(buf, secret, public_key);
+
+ /* might want less than we've got */
+ nbytes = min_t(size_t, CURVE25519_KEY_SIZE, req->dst_len);
+ copied = sg_copy_from_buffer(req->dst, sg_nents_for_len(req->dst,
+ nbytes),
+ buf, nbytes);
+ if (copied != nbytes)
+ return -EINVAL;
+ return 0;
+}
+
+static unsigned int curve25519_max_size(struct crypto_kpp *tfm)
+{
+ return CURVE25519_KEY_SIZE;
+}
+
+static struct kpp_alg curve25519_alg = {
+ .base.cra_name = "curve25519",
+ .base.cra_driver_name = "curve25519-x86",
+ .base.cra_priority = 200,
+ .base.cra_module = THIS_MODULE,
+ .base.cra_ctxsize = CURVE25519_KEY_SIZE,
+
+ .set_secret = curve25519_set_secret,
+ .generate_public_key = curve25519_generate_public_key,
+ .compute_shared_secret = curve25519_compute_shared_secret,
+ .max_size = curve25519_max_size,
+};
+
+
+static int __init curve25519_mod_init(void)
+{
+ if (boot_cpu_has(X86_FEATURE_BMI2) && boot_cpu_has(X86_FEATURE_ADX))
+ static_branch_enable(&curve25519_use_bmi2_adx);
+ else
+ return 0;
+ return IS_REACHABLE(CONFIG_CRYPTO_KPP) ?
+ crypto_register_kpp(&curve25519_alg) : 0;
+}
+
+static void __exit curve25519_mod_exit(void)
+{
+ if (IS_REACHABLE(CONFIG_CRYPTO_KPP) &&
+ (boot_cpu_has(X86_FEATURE_BMI2) || boot_cpu_has(X86_FEATURE_ADX)))
+ crypto_unregister_kpp(&curve25519_alg);
+}
+
+module_init(curve25519_mod_init);
+module_exit(curve25519_mod_exit);
+
+MODULE_ALIAS_CRYPTO("curve25519");
+MODULE_ALIAS_CRYPTO("curve25519-x86");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Jason A. Donenfeld <Jason@zx2c4.com>");
diff --git a/arch/x86/crypto/poly1305-avx2-x86_64.S b/arch/x86/crypto/poly1305-avx2-x86_64.S
deleted file mode 100644
index 8457cdd..0000000
--- a/arch/x86/crypto/poly1305-avx2-x86_64.S
+++ /dev/null
@@ -1,394 +0,0 @@
-/*
- * Poly1305 authenticator algorithm, RFC7539, x64 AVX2 functions
- *
- * Copyright (C) 2015 Martin Willi
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#include <linux/linkage.h>
-
-.section .rodata.cst32.ANMASK, "aM", @progbits, 32
-.align 32
-ANMASK: .octa 0x0000000003ffffff0000000003ffffff
- .octa 0x0000000003ffffff0000000003ffffff
-
-.section .rodata.cst32.ORMASK, "aM", @progbits, 32
-.align 32
-ORMASK: .octa 0x00000000010000000000000001000000
- .octa 0x00000000010000000000000001000000
-
-.text
-
-#define h0 0x00(%rdi)
-#define h1 0x04(%rdi)
-#define h2 0x08(%rdi)
-#define h3 0x0c(%rdi)
-#define h4 0x10(%rdi)
-#define r0 0x00(%rdx)
-#define r1 0x04(%rdx)
-#define r2 0x08(%rdx)
-#define r3 0x0c(%rdx)
-#define r4 0x10(%rdx)
-#define u0 0x00(%r8)
-#define u1 0x04(%r8)
-#define u2 0x08(%r8)
-#define u3 0x0c(%r8)
-#define u4 0x10(%r8)
-#define w0 0x14(%r8)
-#define w1 0x18(%r8)
-#define w2 0x1c(%r8)
-#define w3 0x20(%r8)
-#define w4 0x24(%r8)
-#define y0 0x28(%r8)
-#define y1 0x2c(%r8)
-#define y2 0x30(%r8)
-#define y3 0x34(%r8)
-#define y4 0x38(%r8)
-#define m %rsi
-#define hc0 %ymm0
-#define hc1 %ymm1
-#define hc2 %ymm2
-#define hc3 %ymm3
-#define hc4 %ymm4
-#define hc0x %xmm0
-#define hc1x %xmm1
-#define hc2x %xmm2
-#define hc3x %xmm3
-#define hc4x %xmm4
-#define t1 %ymm5
-#define t2 %ymm6
-#define t1x %xmm5
-#define t2x %xmm6
-#define ruwy0 %ymm7
-#define ruwy1 %ymm8
-#define ruwy2 %ymm9
-#define ruwy3 %ymm10
-#define ruwy4 %ymm11
-#define ruwy0x %xmm7
-#define ruwy1x %xmm8
-#define ruwy2x %xmm9
-#define ruwy3x %xmm10
-#define ruwy4x %xmm11
-#define svxz1 %ymm12
-#define svxz2 %ymm13
-#define svxz3 %ymm14
-#define svxz4 %ymm15
-#define d0 %r9
-#define d1 %r10
-#define d2 %r11
-#define d3 %r12
-#define d4 %r13
-
-ENTRY(poly1305_4block_avx2)
- # %rdi: Accumulator h[5]
- # %rsi: 64 byte input block m
- # %rdx: Poly1305 key r[5]
- # %rcx: Quadblock count
- # %r8: Poly1305 derived key r^2 u[5], r^3 w[5], r^4 y[5],
-
- # This four-block variant uses loop unrolled block processing. It
- # requires 4 Poly1305 keys: r, r^2, r^3 and r^4:
- # h = (h + m) * r => h = (h + m1) * r^4 + m2 * r^3 + m3 * r^2 + m4 * r
-
- vzeroupper
- push %rbx
- push %r12
- push %r13
-
- # combine r0,u0,w0,y0
- vmovd y0,ruwy0x
- vmovd w0,t1x
- vpunpcklqdq t1,ruwy0,ruwy0
- vmovd u0,t1x
- vmovd r0,t2x
- vpunpcklqdq t2,t1,t1
- vperm2i128 $0x20,t1,ruwy0,ruwy0
-
- # combine r1,u1,w1,y1 and s1=r1*5,v1=u1*5,x1=w1*5,z1=y1*5
- vmovd y1,ruwy1x
- vmovd w1,t1x
- vpunpcklqdq t1,ruwy1,ruwy1
- vmovd u1,t1x
- vmovd r1,t2x
- vpunpcklqdq t2,t1,t1
- vperm2i128 $0x20,t1,ruwy1,ruwy1
- vpslld $2,ruwy1,svxz1
- vpaddd ruwy1,svxz1,svxz1
-
- # combine r2,u2,w2,y2 and s2=r2*5,v2=u2*5,x2=w2*5,z2=y2*5
- vmovd y2,ruwy2x
- vmovd w2,t1x
- vpunpcklqdq t1,ruwy2,ruwy2
- vmovd u2,t1x
- vmovd r2,t2x
- vpunpcklqdq t2,t1,t1
- vperm2i128 $0x20,t1,ruwy2,ruwy2
- vpslld $2,ruwy2,svxz2
- vpaddd ruwy2,svxz2,svxz2
-
- # combine r3,u3,w3,y3 and s3=r3*5,v3=u3*5,x3=w3*5,z3=y3*5
- vmovd y3,ruwy3x
- vmovd w3,t1x
- vpunpcklqdq t1,ruwy3,ruwy3
- vmovd u3,t1x
- vmovd r3,t2x
- vpunpcklqdq t2,t1,t1
- vperm2i128 $0x20,t1,ruwy3,ruwy3
- vpslld $2,ruwy3,svxz3
- vpaddd ruwy3,svxz3,svxz3
-
- # combine r4,u4,w4,y4 and s4=r4*5,v4=u4*5,x4=w4*5,z4=y4*5
- vmovd y4,ruwy4x
- vmovd w4,t1x
- vpunpcklqdq t1,ruwy4,ruwy4
- vmovd u4,t1x
- vmovd r4,t2x
- vpunpcklqdq t2,t1,t1
- vperm2i128 $0x20,t1,ruwy4,ruwy4
- vpslld $2,ruwy4,svxz4
- vpaddd ruwy4,svxz4,svxz4
-
-.Ldoblock4:
- # hc0 = [m[48-51] & 0x3ffffff, m[32-35] & 0x3ffffff,
- # m[16-19] & 0x3ffffff, m[ 0- 3] & 0x3ffffff + h0]
- vmovd 0x00(m),hc0x
- vmovd 0x10(m),t1x
- vpunpcklqdq t1,hc0,hc0
- vmovd 0x20(m),t1x
- vmovd 0x30(m),t2x
- vpunpcklqdq t2,t1,t1
- vperm2i128 $0x20,t1,hc0,hc0
- vpand ANMASK(%rip),hc0,hc0
- vmovd h0,t1x
- vpaddd t1,hc0,hc0
- # hc1 = [(m[51-54] >> 2) & 0x3ffffff, (m[35-38] >> 2) & 0x3ffffff,
- # (m[19-22] >> 2) & 0x3ffffff, (m[ 3- 6] >> 2) & 0x3ffffff + h1]
- vmovd 0x03(m),hc1x
- vmovd 0x13(m),t1x
- vpunpcklqdq t1,hc1,hc1
- vmovd 0x23(m),t1x
- vmovd 0x33(m),t2x
- vpunpcklqdq t2,t1,t1
- vperm2i128 $0x20,t1,hc1,hc1
- vpsrld $2,hc1,hc1
- vpand ANMASK(%rip),hc1,hc1
- vmovd h1,t1x
- vpaddd t1,hc1,hc1
- # hc2 = [(m[54-57] >> 4) & 0x3ffffff, (m[38-41] >> 4) & 0x3ffffff,
- # (m[22-25] >> 4) & 0x3ffffff, (m[ 6- 9] >> 4) & 0x3ffffff + h2]
- vmovd 0x06(m),hc2x
- vmovd 0x16(m),t1x
- vpunpcklqdq t1,hc2,hc2
- vmovd 0x26(m),t1x
- vmovd 0x36(m),t2x
- vpunpcklqdq t2,t1,t1
- vperm2i128 $0x20,t1,hc2,hc2
- vpsrld $4,hc2,hc2
- vpand ANMASK(%rip),hc2,hc2
- vmovd h2,t1x
- vpaddd t1,hc2,hc2
- # hc3 = [(m[57-60] >> 6) & 0x3ffffff, (m[41-44] >> 6) & 0x3ffffff,
- # (m[25-28] >> 6) & 0x3ffffff, (m[ 9-12] >> 6) & 0x3ffffff + h3]
- vmovd 0x09(m),hc3x
- vmovd 0x19(m),t1x
- vpunpcklqdq t1,hc3,hc3
- vmovd 0x29(m),t1x
- vmovd 0x39(m),t2x
- vpunpcklqdq t2,t1,t1
- vperm2i128 $0x20,t1,hc3,hc3
- vpsrld $6,hc3,hc3
- vpand ANMASK(%rip),hc3,hc3
- vmovd h3,t1x
- vpaddd t1,hc3,hc3
- # hc4 = [(m[60-63] >> 8) | (1<<24), (m[44-47] >> 8) | (1<<24),
- # (m[28-31] >> 8) | (1<<24), (m[12-15] >> 8) | (1<<24) + h4]
- vmovd 0x0c(m),hc4x
- vmovd 0x1c(m),t1x
- vpunpcklqdq t1,hc4,hc4
- vmovd 0x2c(m),t1x
- vmovd 0x3c(m),t2x
- vpunpcklqdq t2,t1,t1
- vperm2i128 $0x20,t1,hc4,hc4
- vpsrld $8,hc4,hc4
- vpor ORMASK(%rip),hc4,hc4
- vmovd h4,t1x
- vpaddd t1,hc4,hc4
-
- # t1 = [ hc0[3] * r0, hc0[2] * u0, hc0[1] * w0, hc0[0] * y0 ]
- vpmuludq hc0,ruwy0,t1
- # t1 += [ hc1[3] * s4, hc1[2] * v4, hc1[1] * x4, hc1[0] * z4 ]
- vpmuludq hc1,svxz4,t2
- vpaddq t2,t1,t1
- # t1 += [ hc2[3] * s3, hc2[2] * v3, hc2[1] * x3, hc2[0] * z3 ]
- vpmuludq hc2,svxz3,t2
- vpaddq t2,t1,t1
- # t1 += [ hc3[3] * s2, hc3[2] * v2, hc3[1] * x2, hc3[0] * z2 ]
- vpmuludq hc3,svxz2,t2
- vpaddq t2,t1,t1
- # t1 += [ hc4[3] * s1, hc4[2] * v1, hc4[1] * x1, hc4[0] * z1 ]
- vpmuludq hc4,svxz1,t2
- vpaddq t2,t1,t1
- # d0 = t1[0] + t1[1] + t[2] + t[3]
- vpermq $0xee,t1,t2
- vpaddq t2,t1,t1
- vpsrldq $8,t1,t2
- vpaddq t2,t1,t1
- vmovq t1x,d0
-
- # t1 = [ hc0[3] * r1, hc0[2] * u1,hc0[1] * w1, hc0[0] * y1 ]
- vpmuludq hc0,ruwy1,t1
- # t1 += [ hc1[3] * r0, hc1[2] * u0, hc1[1] * w0, hc1[0] * y0 ]
- vpmuludq hc1,ruwy0,t2
- vpaddq t2,t1,t1
- # t1 += [ hc2[3] * s4, hc2[2] * v4, hc2[1] * x4, hc2[0] * z4 ]
- vpmuludq hc2,svxz4,t2
- vpaddq t2,t1,t1
- # t1 += [ hc3[3] * s3, hc3[2] * v3, hc3[1] * x3, hc3[0] * z3 ]
- vpmuludq hc3,svxz3,t2
- vpaddq t2,t1,t1
- # t1 += [ hc4[3] * s2, hc4[2] * v2, hc4[1] * x2, hc4[0] * z2 ]
- vpmuludq hc4,svxz2,t2
- vpaddq t2,t1,t1
- # d1 = t1[0] + t1[1] + t1[3] + t1[4]
- vpermq $0xee,t1,t2
- vpaddq t2,t1,t1
- vpsrldq $8,t1,t2
- vpaddq t2,t1,t1
- vmovq t1x,d1
-
- # t1 = [ hc0[3] * r2, hc0[2] * u2, hc0[1] * w2, hc0[0] * y2 ]
- vpmuludq hc0,ruwy2,t1
- # t1 += [ hc1[3] * r1, hc1[2] * u1, hc1[1] * w1, hc1[0] * y1 ]
- vpmuludq hc1,ruwy1,t2
- vpaddq t2,t1,t1
- # t1 += [ hc2[3] * r0, hc2[2] * u0, hc2[1] * w0, hc2[0] * y0 ]
- vpmuludq hc2,ruwy0,t2
- vpaddq t2,t1,t1
- # t1 += [ hc3[3] * s4, hc3[2] * v4, hc3[1] * x4, hc3[0] * z4 ]
- vpmuludq hc3,svxz4,t2
- vpaddq t2,t1,t1
- # t1 += [ hc4[3] * s3, hc4[2] * v3, hc4[1] * x3, hc4[0] * z3 ]
- vpmuludq hc4,svxz3,t2
- vpaddq t2,t1,t1
- # d2 = t1[0] + t1[1] + t1[2] + t1[3]
- vpermq $0xee,t1,t2
- vpaddq t2,t1,t1
- vpsrldq $8,t1,t2
- vpaddq t2,t1,t1
- vmovq t1x,d2
-
- # t1 = [ hc0[3] * r3, hc0[2] * u3, hc0[1] * w3, hc0[0] * y3 ]
- vpmuludq hc0,ruwy3,t1
- # t1 += [ hc1[3] * r2, hc1[2] * u2, hc1[1] * w2, hc1[0] * y2 ]
- vpmuludq hc1,ruwy2,t2
- vpaddq t2,t1,t1
- # t1 += [ hc2[3] * r1, hc2[2] * u1, hc2[1] * w1, hc2[0] * y1 ]
- vpmuludq hc2,ruwy1,t2
- vpaddq t2,t1,t1
- # t1 += [ hc3[3] * r0, hc3[2] * u0, hc3[1] * w0, hc3[0] * y0 ]
- vpmuludq hc3,ruwy0,t2
- vpaddq t2,t1,t1
- # t1 += [ hc4[3] * s4, hc4[2] * v4, hc4[1] * x4, hc4[0] * z4 ]
- vpmuludq hc4,svxz4,t2
- vpaddq t2,t1,t1
- # d3 = t1[0] + t1[1] + t1[2] + t1[3]
- vpermq $0xee,t1,t2
- vpaddq t2,t1,t1
- vpsrldq $8,t1,t2
- vpaddq t2,t1,t1
- vmovq t1x,d3
-
- # t1 = [ hc0[3] * r4, hc0[2] * u4, hc0[1] * w4, hc0[0] * y4 ]
- vpmuludq hc0,ruwy4,t1
- # t1 += [ hc1[3] * r3, hc1[2] * u3, hc1[1] * w3, hc1[0] * y3 ]
- vpmuludq hc1,ruwy3,t2
- vpaddq t2,t1,t1
- # t1 += [ hc2[3] * r2, hc2[2] * u2, hc2[1] * w2, hc2[0] * y2 ]
- vpmuludq hc2,ruwy2,t2
- vpaddq t2,t1,t1
- # t1 += [ hc3[3] * r1, hc3[2] * u1, hc3[1] * w1, hc3[0] * y1 ]
- vpmuludq hc3,ruwy1,t2
- vpaddq t2,t1,t1
- # t1 += [ hc4[3] * r0, hc4[2] * u0, hc4[1] * w0, hc4[0] * y0 ]
- vpmuludq hc4,ruwy0,t2
- vpaddq t2,t1,t1
- # d4 = t1[0] + t1[1] + t1[2] + t1[3]
- vpermq $0xee,t1,t2
- vpaddq t2,t1,t1
- vpsrldq $8,t1,t2
- vpaddq t2,t1,t1
- vmovq t1x,d4
-
- # Now do a partial reduction mod (2^130)-5, carrying h0 -> h1 -> h2 ->
- # h3 -> h4 -> h0 -> h1 to get h0,h2,h3,h4 < 2^26 and h1 < 2^26 + a small
- # amount. Careful: we must not assume the carry bits 'd0 >> 26',
- # 'd1 >> 26', 'd2 >> 26', 'd3 >> 26', and '(d4 >> 26) * 5' fit in 32-bit
- # integers. It's true in a single-block implementation, but not here.
-
- # d1 += d0 >> 26
- mov d0,%rax
- shr $26,%rax
- add %rax,d1
- # h0 = d0 & 0x3ffffff
- mov d0,%rbx
- and $0x3ffffff,%ebx
-
- # d2 += d1 >> 26
- mov d1,%rax
- shr $26,%rax
- add %rax,d2
- # h1 = d1 & 0x3ffffff
- mov d1,%rax
- and $0x3ffffff,%eax
- mov %eax,h1
-
- # d3 += d2 >> 26
- mov d2,%rax
- shr $26,%rax
- add %rax,d3
- # h2 = d2 & 0x3ffffff
- mov d2,%rax
- and $0x3ffffff,%eax
- mov %eax,h2
-
- # d4 += d3 >> 26
- mov d3,%rax
- shr $26,%rax
- add %rax,d4
- # h3 = d3 & 0x3ffffff
- mov d3,%rax
- and $0x3ffffff,%eax
- mov %eax,h3
-
- # h0 += (d4 >> 26) * 5
- mov d4,%rax
- shr $26,%rax
- lea (%rax,%rax,4),%rax
- add %rax,%rbx
- # h4 = d4 & 0x3ffffff
- mov d4,%rax
- and $0x3ffffff,%eax
- mov %eax,h4
-
- # h1 += h0 >> 26
- mov %rbx,%rax
- shr $26,%rax
- add %eax,h1
- # h0 = h0 & 0x3ffffff
- andl $0x3ffffff,%ebx
- mov %ebx,h0
-
- add $0x40,m
- dec %rcx
- jnz .Ldoblock4
-
- vzeroupper
- pop %r13
- pop %r12
- pop %rbx
- ret
-ENDPROC(poly1305_4block_avx2)
diff --git a/arch/x86/crypto/poly1305-sse2-x86_64.S b/arch/x86/crypto/poly1305-sse2-x86_64.S
deleted file mode 100644
index 5851c74..0000000
--- a/arch/x86/crypto/poly1305-sse2-x86_64.S
+++ /dev/null
@@ -1,590 +0,0 @@
-/*
- * Poly1305 authenticator algorithm, RFC7539, x64 SSE2 functions
- *
- * Copyright (C) 2015 Martin Willi
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#include <linux/linkage.h>
-
-.section .rodata.cst16.ANMASK, "aM", @progbits, 16
-.align 16
-ANMASK: .octa 0x0000000003ffffff0000000003ffffff
-
-.section .rodata.cst16.ORMASK, "aM", @progbits, 16
-.align 16
-ORMASK: .octa 0x00000000010000000000000001000000
-
-.text
-
-#define h0 0x00(%rdi)
-#define h1 0x04(%rdi)
-#define h2 0x08(%rdi)
-#define h3 0x0c(%rdi)
-#define h4 0x10(%rdi)
-#define r0 0x00(%rdx)
-#define r1 0x04(%rdx)
-#define r2 0x08(%rdx)
-#define r3 0x0c(%rdx)
-#define r4 0x10(%rdx)
-#define s1 0x00(%rsp)
-#define s2 0x04(%rsp)
-#define s3 0x08(%rsp)
-#define s4 0x0c(%rsp)
-#define m %rsi
-#define h01 %xmm0
-#define h23 %xmm1
-#define h44 %xmm2
-#define t1 %xmm3
-#define t2 %xmm4
-#define t3 %xmm5
-#define t4 %xmm6
-#define mask %xmm7
-#define d0 %r8
-#define d1 %r9
-#define d2 %r10
-#define d3 %r11
-#define d4 %r12
-
-ENTRY(poly1305_block_sse2)
- # %rdi: Accumulator h[5]
- # %rsi: 16 byte input block m
- # %rdx: Poly1305 key r[5]
- # %rcx: Block count
-
- # This single block variant tries to improve performance by doing two
- # multiplications in parallel using SSE instructions. There is quite
- # some quardword packing involved, hence the speedup is marginal.
-
- push %rbx
- push %r12
- sub $0x10,%rsp
-
- # s1..s4 = r1..r4 * 5
- mov r1,%eax
- lea (%eax,%eax,4),%eax
- mov %eax,s1
- mov r2,%eax
- lea (%eax,%eax,4),%eax
- mov %eax,s2
- mov r3,%eax
- lea (%eax,%eax,4),%eax
- mov %eax,s3
- mov r4,%eax
- lea (%eax,%eax,4),%eax
- mov %eax,s4
-
- movdqa ANMASK(%rip),mask
-
-.Ldoblock:
- # h01 = [0, h1, 0, h0]
- # h23 = [0, h3, 0, h2]
- # h44 = [0, h4, 0, h4]
- movd h0,h01
- movd h1,t1
- movd h2,h23
- movd h3,t2
- movd h4,h44
- punpcklqdq t1,h01
- punpcklqdq t2,h23
- punpcklqdq h44,h44
-
- # h01 += [ (m[3-6] >> 2) & 0x3ffffff, m[0-3] & 0x3ffffff ]
- movd 0x00(m),t1
- movd 0x03(m),t2
- psrld $2,t2
- punpcklqdq t2,t1
- pand mask,t1
- paddd t1,h01
- # h23 += [ (m[9-12] >> 6) & 0x3ffffff, (m[6-9] >> 4) & 0x3ffffff ]
- movd 0x06(m),t1
- movd 0x09(m),t2
- psrld $4,t1
- psrld $6,t2
- punpcklqdq t2,t1
- pand mask,t1
- paddd t1,h23
- # h44 += [ (m[12-15] >> 8) | (1 << 24), (m[12-15] >> 8) | (1 << 24) ]
- mov 0x0c(m),%eax
- shr $8,%eax
- or $0x01000000,%eax
- movd %eax,t1
- pshufd $0xc4,t1,t1
- paddd t1,h44
-
- # t1[0] = h0 * r0 + h2 * s3
- # t1[1] = h1 * s4 + h3 * s2
- movd r0,t1
- movd s4,t2
- punpcklqdq t2,t1
- pmuludq h01,t1
- movd s3,t2
- movd s2,t3
- punpcklqdq t3,t2
- pmuludq h23,t2
- paddq t2,t1
- # t2[0] = h0 * r1 + h2 * s4
- # t2[1] = h1 * r0 + h3 * s3
- movd r1,t2
- movd r0,t3
- punpcklqdq t3,t2
- pmuludq h01,t2
- movd s4,t3
- movd s3,t4
- punpcklqdq t4,t3
- pmuludq h23,t3
- paddq t3,t2
- # t3[0] = h4 * s1
- # t3[1] = h4 * s2
- movd s1,t3
- movd s2,t4
- punpcklqdq t4,t3
- pmuludq h44,t3
- # d0 = t1[0] + t1[1] + t3[0]
- # d1 = t2[0] + t2[1] + t3[1]
- movdqa t1,t4
- punpcklqdq t2,t4
- punpckhqdq t2,t1
- paddq t4,t1
- paddq t3,t1
- movq t1,d0
- psrldq $8,t1
- movq t1,d1
-
- # t1[0] = h0 * r2 + h2 * r0
- # t1[1] = h1 * r1 + h3 * s4
- movd r2,t1
- movd r1,t2
- punpcklqdq t2,t1
- pmuludq h01,t1
- movd r0,t2
- movd s4,t3
- punpcklqdq t3,t2
- pmuludq h23,t2
- paddq t2,t1
- # t2[0] = h0 * r3 + h2 * r1
- # t2[1] = h1 * r2 + h3 * r0
- movd r3,t2
- movd r2,t3
- punpcklqdq t3,t2
- pmuludq h01,t2
- movd r1,t3
- movd r0,t4
- punpcklqdq t4,t3
- pmuludq h23,t3
- paddq t3,t2
- # t3[0] = h4 * s3
- # t3[1] = h4 * s4
- movd s3,t3
- movd s4,t4
- punpcklqdq t4,t3
- pmuludq h44,t3
- # d2 = t1[0] + t1[1] + t3[0]
- # d3 = t2[0] + t2[1] + t3[1]
- movdqa t1,t4
- punpcklqdq t2,t4
- punpckhqdq t2,t1
- paddq t4,t1
- paddq t3,t1
- movq t1,d2
- psrldq $8,t1
- movq t1,d3
-
- # t1[0] = h0 * r4 + h2 * r2
- # t1[1] = h1 * r3 + h3 * r1
- movd r4,t1
- movd r3,t2
- punpcklqdq t2,t1
- pmuludq h01,t1
- movd r2,t2
- movd r1,t3
- punpcklqdq t3,t2
- pmuludq h23,t2
- paddq t2,t1
- # t3[0] = h4 * r0
- movd r0,t3
- pmuludq h44,t3
- # d4 = t1[0] + t1[1] + t3[0]
- movdqa t1,t4
- psrldq $8,t4
- paddq t4,t1
- paddq t3,t1
- movq t1,d4
-
- # d1 += d0 >> 26
- mov d0,%rax
- shr $26,%rax
- add %rax,d1
- # h0 = d0 & 0x3ffffff
- mov d0,%rbx
- and $0x3ffffff,%ebx
-
- # d2 += d1 >> 26
- mov d1,%rax
- shr $26,%rax
- add %rax,d2
- # h1 = d1 & 0x3ffffff
- mov d1,%rax
- and $0x3ffffff,%eax
- mov %eax,h1
-
- # d3 += d2 >> 26
- mov d2,%rax
- shr $26,%rax
- add %rax,d3
- # h2 = d2 & 0x3ffffff
- mov d2,%rax
- and $0x3ffffff,%eax
- mov %eax,h2
-
- # d4 += d3 >> 26
- mov d3,%rax
- shr $26,%rax
- add %rax,d4
- # h3 = d3 & 0x3ffffff
- mov d3,%rax
- and $0x3ffffff,%eax
- mov %eax,h3
-
- # h0 += (d4 >> 26) * 5
- mov d4,%rax
- shr $26,%rax
- lea (%rax,%rax,4),%rax
- add %rax,%rbx
- # h4 = d4 & 0x3ffffff
- mov d4,%rax
- and $0x3ffffff,%eax
- mov %eax,h4
-
- # h1 += h0 >> 26
- mov %rbx,%rax
- shr $26,%rax
- add %eax,h1
- # h0 = h0 & 0x3ffffff
- andl $0x3ffffff,%ebx
- mov %ebx,h0
-
- add $0x10,m
- dec %rcx
- jnz .Ldoblock
-
- add $0x10,%rsp
- pop %r12
- pop %rbx
- ret
-ENDPROC(poly1305_block_sse2)
-
-
-#define u0 0x00(%r8)
-#define u1 0x04(%r8)
-#define u2 0x08(%r8)
-#define u3 0x0c(%r8)
-#define u4 0x10(%r8)
-#define hc0 %xmm0
-#define hc1 %xmm1
-#define hc2 %xmm2
-#define hc3 %xmm5
-#define hc4 %xmm6
-#define ru0 %xmm7
-#define ru1 %xmm8
-#define ru2 %xmm9
-#define ru3 %xmm10
-#define ru4 %xmm11
-#define sv1 %xmm12
-#define sv2 %xmm13
-#define sv3 %xmm14
-#define sv4 %xmm15
-#undef d0
-#define d0 %r13
-
-ENTRY(poly1305_2block_sse2)
- # %rdi: Accumulator h[5]
- # %rsi: 16 byte input block m
- # %rdx: Poly1305 key r[5]
- # %rcx: Doubleblock count
- # %r8: Poly1305 derived key r^2 u[5]
-
- # This two-block variant further improves performance by using loop
- # unrolled block processing. This is more straight forward and does
- # less byte shuffling, but requires a second Poly1305 key r^2:
- # h = (h + m) * r => h = (h + m1) * r^2 + m2 * r
-
- push %rbx
- push %r12
- push %r13
-
- # combine r0,u0
- movd u0,ru0
- movd r0,t1
- punpcklqdq t1,ru0
-
- # combine r1,u1 and s1=r1*5,v1=u1*5
- movd u1,ru1
- movd r1,t1
- punpcklqdq t1,ru1
- movdqa ru1,sv1
- pslld $2,sv1
- paddd ru1,sv1
-
- # combine r2,u2 and s2=r2*5,v2=u2*5
- movd u2,ru2
- movd r2,t1
- punpcklqdq t1,ru2
- movdqa ru2,sv2
- pslld $2,sv2
- paddd ru2,sv2
-
- # combine r3,u3 and s3=r3*5,v3=u3*5
- movd u3,ru3
- movd r3,t1
- punpcklqdq t1,ru3
- movdqa ru3,sv3
- pslld $2,sv3
- paddd ru3,sv3
-
- # combine r4,u4 and s4=r4*5,v4=u4*5
- movd u4,ru4
- movd r4,t1
- punpcklqdq t1,ru4
- movdqa ru4,sv4
- pslld $2,sv4
- paddd ru4,sv4
-
-.Ldoblock2:
- # hc0 = [ m[16-19] & 0x3ffffff, h0 + m[0-3] & 0x3ffffff ]
- movd 0x00(m),hc0
- movd 0x10(m),t1
- punpcklqdq t1,hc0
- pand ANMASK(%rip),hc0
- movd h0,t1
- paddd t1,hc0
- # hc1 = [ (m[19-22] >> 2) & 0x3ffffff, h1 + (m[3-6] >> 2) & 0x3ffffff ]
- movd 0x03(m),hc1
- movd 0x13(m),t1
- punpcklqdq t1,hc1
- psrld $2,hc1
- pand ANMASK(%rip),hc1
- movd h1,t1
- paddd t1,hc1
- # hc2 = [ (m[22-25] >> 4) & 0x3ffffff, h2 + (m[6-9] >> 4) & 0x3ffffff ]
- movd 0x06(m),hc2
- movd 0x16(m),t1
- punpcklqdq t1,hc2
- psrld $4,hc2
- pand ANMASK(%rip),hc2
- movd h2,t1
- paddd t1,hc2
- # hc3 = [ (m[25-28] >> 6) & 0x3ffffff, h3 + (m[9-12] >> 6) & 0x3ffffff ]
- movd 0x09(m),hc3
- movd 0x19(m),t1
- punpcklqdq t1,hc3
- psrld $6,hc3
- pand ANMASK(%rip),hc3
- movd h3,t1
- paddd t1,hc3
- # hc4 = [ (m[28-31] >> 8) | (1<<24), h4 + (m[12-15] >> 8) | (1<<24) ]
- movd 0x0c(m),hc4
- movd 0x1c(m),t1
- punpcklqdq t1,hc4
- psrld $8,hc4
- por ORMASK(%rip),hc4
- movd h4,t1
- paddd t1,hc4
-
- # t1 = [ hc0[1] * r0, hc0[0] * u0 ]
- movdqa ru0,t1
- pmuludq hc0,t1
- # t1 += [ hc1[1] * s4, hc1[0] * v4 ]
- movdqa sv4,t2
- pmuludq hc1,t2
- paddq t2,t1
- # t1 += [ hc2[1] * s3, hc2[0] * v3 ]
- movdqa sv3,t2
- pmuludq hc2,t2
- paddq t2,t1
- # t1 += [ hc3[1] * s2, hc3[0] * v2 ]
- movdqa sv2,t2
- pmuludq hc3,t2
- paddq t2,t1
- # t1 += [ hc4[1] * s1, hc4[0] * v1 ]
- movdqa sv1,t2
- pmuludq hc4,t2
- paddq t2,t1
- # d0 = t1[0] + t1[1]
- movdqa t1,t2
- psrldq $8,t2
- paddq t2,t1
- movq t1,d0
-
- # t1 = [ hc0[1] * r1, hc0[0] * u1 ]
- movdqa ru1,t1
- pmuludq hc0,t1
- # t1 += [ hc1[1] * r0, hc1[0] * u0 ]
- movdqa ru0,t2
- pmuludq hc1,t2
- paddq t2,t1
- # t1 += [ hc2[1] * s4, hc2[0] * v4 ]
- movdqa sv4,t2
- pmuludq hc2,t2
- paddq t2,t1
- # t1 += [ hc3[1] * s3, hc3[0] * v3 ]
- movdqa sv3,t2
- pmuludq hc3,t2
- paddq t2,t1
- # t1 += [ hc4[1] * s2, hc4[0] * v2 ]
- movdqa sv2,t2
- pmuludq hc4,t2
- paddq t2,t1
- # d1 = t1[0] + t1[1]
- movdqa t1,t2
- psrldq $8,t2
- paddq t2,t1
- movq t1,d1
-
- # t1 = [ hc0[1] * r2, hc0[0] * u2 ]
- movdqa ru2,t1
- pmuludq hc0,t1
- # t1 += [ hc1[1] * r1, hc1[0] * u1 ]
- movdqa ru1,t2
- pmuludq hc1,t2
- paddq t2,t1
- # t1 += [ hc2[1] * r0, hc2[0] * u0 ]
- movdqa ru0,t2
- pmuludq hc2,t2
- paddq t2,t1
- # t1 += [ hc3[1] * s4, hc3[0] * v4 ]
- movdqa sv4,t2
- pmuludq hc3,t2
- paddq t2,t1
- # t1 += [ hc4[1] * s3, hc4[0] * v3 ]
- movdqa sv3,t2
- pmuludq hc4,t2
- paddq t2,t1
- # d2 = t1[0] + t1[1]
- movdqa t1,t2
- psrldq $8,t2
- paddq t2,t1
- movq t1,d2
-
- # t1 = [ hc0[1] * r3, hc0[0] * u3 ]
- movdqa ru3,t1
- pmuludq hc0,t1
- # t1 += [ hc1[1] * r2, hc1[0] * u2 ]
- movdqa ru2,t2
- pmuludq hc1,t2
- paddq t2,t1
- # t1 += [ hc2[1] * r1, hc2[0] * u1 ]
- movdqa ru1,t2
- pmuludq hc2,t2
- paddq t2,t1
- # t1 += [ hc3[1] * r0, hc3[0] * u0 ]
- movdqa ru0,t2
- pmuludq hc3,t2
- paddq t2,t1
- # t1 += [ hc4[1] * s4, hc4[0] * v4 ]
- movdqa sv4,t2
- pmuludq hc4,t2
- paddq t2,t1
- # d3 = t1[0] + t1[1]
- movdqa t1,t2
- psrldq $8,t2
- paddq t2,t1
- movq t1,d3
-
- # t1 = [ hc0[1] * r4, hc0[0] * u4 ]
- movdqa ru4,t1
- pmuludq hc0,t1
- # t1 += [ hc1[1] * r3, hc1[0] * u3 ]
- movdqa ru3,t2
- pmuludq hc1,t2
- paddq t2,t1
- # t1 += [ hc2[1] * r2, hc2[0] * u2 ]
- movdqa ru2,t2
- pmuludq hc2,t2
- paddq t2,t1
- # t1 += [ hc3[1] * r1, hc3[0] * u1 ]
- movdqa ru1,t2
- pmuludq hc3,t2
- paddq t2,t1
- # t1 += [ hc4[1] * r0, hc4[0] * u0 ]
- movdqa ru0,t2
- pmuludq hc4,t2
- paddq t2,t1
- # d4 = t1[0] + t1[1]
- movdqa t1,t2
- psrldq $8,t2
- paddq t2,t1
- movq t1,d4
-
- # Now do a partial reduction mod (2^130)-5, carrying h0 -> h1 -> h2 ->
- # h3 -> h4 -> h0 -> h1 to get h0,h2,h3,h4 < 2^26 and h1 < 2^26 + a small
- # amount. Careful: we must not assume the carry bits 'd0 >> 26',
- # 'd1 >> 26', 'd2 >> 26', 'd3 >> 26', and '(d4 >> 26) * 5' fit in 32-bit
- # integers. It's true in a single-block implementation, but not here.
-
- # d1 += d0 >> 26
- mov d0,%rax
- shr $26,%rax
- add %rax,d1
- # h0 = d0 & 0x3ffffff
- mov d0,%rbx
- and $0x3ffffff,%ebx
-
- # d2 += d1 >> 26
- mov d1,%rax
- shr $26,%rax
- add %rax,d2
- # h1 = d1 & 0x3ffffff
- mov d1,%rax
- and $0x3ffffff,%eax
- mov %eax,h1
-
- # d3 += d2 >> 26
- mov d2,%rax
- shr $26,%rax
- add %rax,d3
- # h2 = d2 & 0x3ffffff
- mov d2,%rax
- and $0x3ffffff,%eax
- mov %eax,h2
-
- # d4 += d3 >> 26
- mov d3,%rax
- shr $26,%rax
- add %rax,d4
- # h3 = d3 & 0x3ffffff
- mov d3,%rax
- and $0x3ffffff,%eax
- mov %eax,h3
-
- # h0 += (d4 >> 26) * 5
- mov d4,%rax
- shr $26,%rax
- lea (%rax,%rax,4),%rax
- add %rax,%rbx
- # h4 = d4 & 0x3ffffff
- mov d4,%rax
- and $0x3ffffff,%eax
- mov %eax,h4
-
- # h1 += h0 >> 26
- mov %rbx,%rax
- shr $26,%rax
- add %eax,h1
- # h0 = h0 & 0x3ffffff
- andl $0x3ffffff,%ebx
- mov %ebx,h0
-
- add $0x20,m
- dec %rcx
- jnz .Ldoblock2
-
- pop %r13
- pop %r12
- pop %rbx
- ret
-ENDPROC(poly1305_2block_sse2)
diff --git a/arch/x86/crypto/poly1305-x86_64-cryptogams.pl b/arch/x86/crypto/poly1305-x86_64-cryptogams.pl
new file mode 100644
index 0000000..5b59399
--- /dev/null
+++ b/arch/x86/crypto/poly1305-x86_64-cryptogams.pl
@@ -0,0 +1,4265 @@
+#!/usr/bin/env perl
+# SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+#
+# Copyright (C) 2017-2018 Samuel Neves <sneves@dei.uc.pt>. All Rights Reserved.
+# Copyright (C) 2017-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+# Copyright (C) 2006-2017 CRYPTOGAMS by <appro@openssl.org>. All Rights Reserved.
+#
+# This code is taken from the OpenSSL project but the author, Andy Polyakov,
+# has relicensed it under the licenses specified in the SPDX header above.
+# The original headers, including the original license headers, are
+# included below for completeness.
+#
+# ====================================================================
+# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
+# project. The module is, however, dual licensed under OpenSSL and
+# CRYPTOGAMS licenses depending on where you obtain it. For further
+# details see http://www.openssl.org/~appro/cryptogams/.
+# ====================================================================
+#
+# This module implements Poly1305 hash for x86_64.
+#
+# March 2015
+#
+# Initial release.
+#
+# December 2016
+#
+# Add AVX512F+VL+BW code path.
+#
+# November 2017
+#
+# Convert AVX512F+VL+BW code path to pure AVX512F, so that it can be
+# executed even on Knights Landing. Trigger for modification was
+# observation that AVX512 code paths can negatively affect overall
+# Skylake-X system performance. Since we are likely to suppress
+# AVX512F capability flag [at least on Skylake-X], conversion serves
+# as kind of "investment protection". Note that next *lake processor,
+# Cannonlake, has AVX512IFMA code path to execute...
+#
+# Numbers are cycles per processed byte with poly1305_blocks alone,
+# measured with rdtsc at fixed clock frequency.
+#
+# IALU/gcc-4.8(*) AVX(**) AVX2 AVX-512
+# P4 4.46/+120% -
+# Core 2 2.41/+90% -
+# Westmere 1.88/+120% -
+# Sandy Bridge 1.39/+140% 1.10
+# Haswell 1.14/+175% 1.11 0.65
+# Skylake[-X] 1.13/+120% 0.96 0.51 [0.35]
+# Silvermont 2.83/+95% -
+# Knights L 3.60/? 1.65 1.10 0.41(***)
+# Goldmont 1.70/+180% -
+# VIA Nano 1.82/+150% -
+# Sledgehammer 1.38/+160% -
+# Bulldozer 2.30/+130% 0.97
+# Ryzen 1.15/+200% 1.08 1.18
+#
+# (*) improvement coefficients relative to clang are more modest and
+# are ~50% on most processors, in both cases we are comparing to
+# __int128 code;
+# (**) SSE2 implementation was attempted, but among non-AVX processors
+# it was faster than integer-only code only on older Intel P4 and
+# Core processors, 50-30%, less newer processor is, but slower on
+# contemporary ones, for example almost 2x slower on Atom, and as
+# former are naturally disappearing, SSE2 is deemed unnecessary;
+# (***) strangely enough performance seems to vary from core to core,
+# listed result is best case;
+
+$flavour = shift;
+$output = shift;
+if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
+
+$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
+$kernel=0; $kernel=1 if (!$flavour && !$output);
+
+if (!$kernel) {
+ $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
+ ( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or
+ ( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
+ die "can't locate x86_64-xlate.pl";
+
+ open OUT,"| \"$^X\" \"$xlate\" $flavour \"$output\"";
+ *STDOUT=*OUT;
+
+ if (`$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1`
+ =~ /GNU assembler version ([2-9]\.[0-9]+)/) {
+ $avx = ($1>=2.19) + ($1>=2.22) + ($1>=2.25);
+ }
+
+ if (!$avx && $win64 && ($flavour =~ /nasm/ || $ENV{ASM} =~ /nasm/) &&
+ `nasm -v 2>&1` =~ /NASM version ([2-9]\.[0-9]+)(?:\.([0-9]+))?/) {
+ $avx = ($1>=2.09) + ($1>=2.10) + ($1>=2.12);
+ $avx += 1 if ($1==2.11 && $2>=8);
+ }
+
+ if (!$avx && $win64 && ($flavour =~ /masm/ || $ENV{ASM} =~ /ml64/) &&
+ `ml64 2>&1` =~ /Version ([0-9]+)\./) {
+ $avx = ($1>=10) + ($1>=11);
+ }
+
+ if (!$avx && `$ENV{CC} -v 2>&1` =~ /((?:^clang|LLVM) version|.*based on LLVM) ([3-9]\.[0-9]+)/) {
+ $avx = ($2>=3.0) + ($2>3.0);
+ }
+} else {
+ $avx = 4; # The kernel uses ifdefs for this.
+}
+
+sub declare_function() {
+ my ($name, $align, $nargs) = @_;
+ if($kernel) {
+ $code .= ".align $align\n";
+ $code .= "ENTRY($name)\n";
+ $code .= ".L$name:\n";
+ } else {
+ $code .= ".globl $name\n";
+ $code .= ".type $name,\@function,$nargs\n";
+ $code .= ".align $align\n";
+ $code .= "$name:\n";
+ }
+}
+
+sub end_function() {
+ my ($name) = @_;
+ if($kernel) {
+ $code .= "ENDPROC($name)\n";
+ } else {
+ $code .= ".size $name,.-$name\n";
+ }
+}
+
+$code.=<<___ if $kernel;
+#include <linux/linkage.h>
+___
+
+if ($avx) {
+$code.=<<___ if $kernel;
+.section .rodata
+___
+$code.=<<___;
+.align 64
+.Lconst:
+.Lmask24:
+.long 0x0ffffff,0,0x0ffffff,0,0x0ffffff,0,0x0ffffff,0
+.L129:
+.long `1<<24`,0,`1<<24`,0,`1<<24`,0,`1<<24`,0
+.Lmask26:
+.long 0x3ffffff,0,0x3ffffff,0,0x3ffffff,0,0x3ffffff,0
+.Lpermd_avx2:
+.long 2,2,2,3,2,0,2,1
+.Lpermd_avx512:
+.long 0,0,0,1, 0,2,0,3, 0,4,0,5, 0,6,0,7
+
+.L2_44_inp_permd:
+.long 0,1,1,2,2,3,7,7
+.L2_44_inp_shift:
+.quad 0,12,24,64
+.L2_44_mask:
+.quad 0xfffffffffff,0xfffffffffff,0x3ffffffffff,0xffffffffffffffff
+.L2_44_shift_rgt:
+.quad 44,44,42,64
+.L2_44_shift_lft:
+.quad 8,8,10,64
+
+.align 64
+.Lx_mask44:
+.quad 0xfffffffffff,0xfffffffffff,0xfffffffffff,0xfffffffffff
+.quad 0xfffffffffff,0xfffffffffff,0xfffffffffff,0xfffffffffff
+.Lx_mask42:
+.quad 0x3ffffffffff,0x3ffffffffff,0x3ffffffffff,0x3ffffffffff
+.quad 0x3ffffffffff,0x3ffffffffff,0x3ffffffffff,0x3ffffffffff
+___
+}
+$code.=<<___ if (!$kernel);
+.asciz "Poly1305 for x86_64, CRYPTOGAMS by <appro\@openssl.org>"
+.align 16
+___
+
+my ($ctx,$inp,$len,$padbit)=("%rdi","%rsi","%rdx","%rcx");
+my ($mac,$nonce)=($inp,$len); # *_emit arguments
+my ($d1,$d2,$d3, $r0,$r1,$s1)=("%r8","%r9","%rdi","%r11","%r12","%r13");
+my ($h0,$h1,$h2)=("%r14","%rbx","%r10");
+
+sub poly1305_iteration {
+# input: copy of $r1 in %rax, $h0-$h2, $r0-$r1
+# output: $h0-$h2 *= $r0-$r1
+$code.=<<___;
+ mulq $h0 # h0*r1
+ mov %rax,$d2
+ mov $r0,%rax
+ mov %rdx,$d3
+
+ mulq $h0 # h0*r0
+ mov %rax,$h0 # future $h0
+ mov $r0,%rax
+ mov %rdx,$d1
+
+ mulq $h1 # h1*r0
+ add %rax,$d2
+ mov $s1,%rax
+ adc %rdx,$d3
+
+ mulq $h1 # h1*s1
+ mov $h2,$h1 # borrow $h1
+ add %rax,$h0
+ adc %rdx,$d1
+
+ imulq $s1,$h1 # h2*s1
+ add $h1,$d2
+ mov $d1,$h1
+ adc \$0,$d3
+
+ imulq $r0,$h2 # h2*r0
+ add $d2,$h1
+ mov \$-4,%rax # mask value
+ adc $h2,$d3
+
+ and $d3,%rax # last reduction step
+ mov $d3,$h2
+ shr \$2,$d3
+ and \$3,$h2
+ add $d3,%rax
+ add %rax,$h0
+ adc \$0,$h1
+ adc \$0,$h2
+___
+}
+
+########################################################################
+# Layout of opaque area is following.
+#
+# unsigned __int64 h[3]; # current hash value base 2^64
+# unsigned __int64 r[2]; # key value base 2^64
+
+$code.=<<___;
+.text
+___
+$code.=<<___ if (!$kernel);
+.extern OPENSSL_ia32cap_P
+
+.globl poly1305_init_x86_64
+.hidden poly1305_init_x86_64
+.globl poly1305_blocks_x86_64
+.hidden poly1305_blocks_x86_64
+.globl poly1305_emit_x86_64
+.hidden poly1305_emit_x86_64
+___
+&declare_function("poly1305_init_x86_64", 32, 3);
+$code.=<<___;
+ xor %eax,%eax
+ mov %rax,0($ctx) # initialize hash value
+ mov %rax,8($ctx)
+ mov %rax,16($ctx)
+
+ cmp \$0,$inp
+ je .Lno_key
+___
+$code.=<<___ if (!$kernel);
+ lea poly1305_blocks_x86_64(%rip),%r10
+ lea poly1305_emit_x86_64(%rip),%r11
+___
+$code.=<<___ if (!$kernel && $avx);
+ mov OPENSSL_ia32cap_P+4(%rip),%r9
+ lea poly1305_blocks_avx(%rip),%rax
+ lea poly1305_emit_avx(%rip),%rcx
+ bt \$`60-32`,%r9 # AVX?
+ cmovc %rax,%r10
+ cmovc %rcx,%r11
+___
+$code.=<<___ if (!$kernel && $avx>1);
+ lea poly1305_blocks_avx2(%rip),%rax
+ bt \$`5+32`,%r9 # AVX2?
+ cmovc %rax,%r10
+___
+$code.=<<___ if (!$kernel && $avx>3);
+ mov \$`(1<<31|1<<21|1<<16)`,%rax
+ shr \$32,%r9
+ and %rax,%r9
+ cmp %rax,%r9
+ je .Linit_base2_44
+___
+$code.=<<___;
+ mov \$0x0ffffffc0fffffff,%rax
+ mov \$0x0ffffffc0ffffffc,%rcx
+ and 0($inp),%rax
+ and 8($inp),%rcx
+ mov %rax,24($ctx)
+ mov %rcx,32($ctx)
+___
+$code.=<<___ if (!$kernel && $flavour !~ /elf32/);
+ mov %r10,0(%rdx)
+ mov %r11,8(%rdx)
+___
+$code.=<<___ if (!$kernel && $flavour =~ /elf32/);
+ mov %r10d,0(%rdx)
+ mov %r11d,4(%rdx)
+___
+$code.=<<___;
+ mov \$1,%eax
+.Lno_key:
+ ret
+___
+&end_function("poly1305_init_x86_64");
+
+&declare_function("poly1305_blocks_x86_64", 32, 4);
+$code.=<<___;
+.cfi_startproc
+.Lblocks:
+ shr \$4,$len
+ jz .Lno_data # too short
+
+ push %rbx
+.cfi_push %rbx
+ push %r12
+.cfi_push %r12
+ push %r13
+.cfi_push %r13
+ push %r14
+.cfi_push %r14
+ push %r15
+.cfi_push %r15
+ push $ctx
+.cfi_push $ctx
+.Lblocks_body:
+
+ mov $len,%r15 # reassign $len
+
+ mov 24($ctx),$r0 # load r
+ mov 32($ctx),$s1
+
+ mov 0($ctx),$h0 # load hash value
+ mov 8($ctx),$h1
+ mov 16($ctx),$h2
+
+ mov $s1,$r1
+ shr \$2,$s1
+ mov $r1,%rax
+ add $r1,$s1 # s1 = r1 + (r1 >> 2)
+ jmp .Loop
+
+.align 32
+.Loop:
+ add 0($inp),$h0 # accumulate input
+ adc 8($inp),$h1
+ lea 16($inp),$inp
+ adc $padbit,$h2
+___
+
+ &poly1305_iteration();
+
+$code.=<<___;
+ mov $r1,%rax
+ dec %r15 # len-=16
+ jnz .Loop
+
+ mov 0(%rsp),$ctx
+.cfi_restore $ctx
+
+ mov $h0,0($ctx) # store hash value
+ mov $h1,8($ctx)
+ mov $h2,16($ctx)
+
+ mov 8(%rsp),%r15
+.cfi_restore %r15
+ mov 16(%rsp),%r14
+.cfi_restore %r14
+ mov 24(%rsp),%r13
+.cfi_restore %r13
+ mov 32(%rsp),%r12
+.cfi_restore %r12
+ mov 40(%rsp),%rbx
+.cfi_restore %rbx
+ lea 48(%rsp),%rsp
+.cfi_adjust_cfa_offset -48
+.Lno_data:
+.Lblocks_epilogue:
+ ret
+.cfi_endproc
+___
+&end_function("poly1305_blocks_x86_64");
+
+&declare_function("poly1305_emit_x86_64", 32, 3);
+$code.=<<___;
+.Lemit:
+ mov 0($ctx),%r8 # load hash value
+ mov 8($ctx),%r9
+ mov 16($ctx),%r10
+
+ mov %r8,%rax
+ add \$5,%r8 # compare to modulus
+ mov %r9,%rcx
+ adc \$0,%r9
+ adc \$0,%r10
+ shr \$2,%r10 # did 130-bit value overflow?
+ cmovnz %r8,%rax
+ cmovnz %r9,%rcx
+
+ add 0($nonce),%rax # accumulate nonce
+ adc 8($nonce),%rcx
+ mov %rax,0($mac) # write result
+ mov %rcx,8($mac)
+
+ ret
+___
+&end_function("poly1305_emit_x86_64");
+if ($avx) {
+
+if($kernel) {
+ $code .= "#ifdef CONFIG_AS_AVX\n";
+}
+
+########################################################################
+# Layout of opaque area is following.
+#
+# unsigned __int32 h[5]; # current hash value base 2^26
+# unsigned __int32 is_base2_26;
+# unsigned __int64 r[2]; # key value base 2^64
+# unsigned __int64 pad;
+# struct { unsigned __int32 r^2, r^1, r^4, r^3; } r[9];
+#
+# where r^n are base 2^26 digits of degrees of multiplier key. There are
+# 5 digits, but last four are interleaved with multiples of 5, totalling
+# in 9 elements: r0, r1, 5*r1, r2, 5*r2, r3, 5*r3, r4, 5*r4.
+
+my ($H0,$H1,$H2,$H3,$H4, $T0,$T1,$T2,$T3,$T4, $D0,$D1,$D2,$D3,$D4, $MASK) =
+ map("%xmm$_",(0..15));
+
+$code.=<<___;
+.type __poly1305_block,\@abi-omnipotent
+.align 32
+__poly1305_block:
+ push $ctx
+___
+ &poly1305_iteration();
+$code.=<<___;
+ pop $ctx
+ ret
+.size __poly1305_block,.-__poly1305_block
+
+.type __poly1305_init_avx,\@abi-omnipotent
+.align 32
+__poly1305_init_avx:
+ push %rbp
+ mov %rsp,%rbp
+ mov $r0,$h0
+ mov $r1,$h1
+ xor $h2,$h2
+
+ lea 48+64($ctx),$ctx # size optimization
+
+ mov $r1,%rax
+ call __poly1305_block # r^2
+
+ mov \$0x3ffffff,%eax # save interleaved r^2 and r base 2^26
+ mov \$0x3ffffff,%edx
+ mov $h0,$d1
+ and $h0#d,%eax
+ mov $r0,$d2
+ and $r0#d,%edx
+ mov %eax,`16*0+0-64`($ctx)
+ shr \$26,$d1
+ mov %edx,`16*0+4-64`($ctx)
+ shr \$26,$d2
+
+ mov \$0x3ffffff,%eax
+ mov \$0x3ffffff,%edx
+ and $d1#d,%eax
+ and $d2#d,%edx
+ mov %eax,`16*1+0-64`($ctx)
+ lea (%rax,%rax,4),%eax # *5
+ mov %edx,`16*1+4-64`($ctx)
+ lea (%rdx,%rdx,4),%edx # *5
+ mov %eax,`16*2+0-64`($ctx)
+ shr \$26,$d1
+ mov %edx,`16*2+4-64`($ctx)
+ shr \$26,$d2
+
+ mov $h1,%rax
+ mov $r1,%rdx
+ shl \$12,%rax
+ shl \$12,%rdx
+ or $d1,%rax
+ or $d2,%rdx
+ and \$0x3ffffff,%eax
+ and \$0x3ffffff,%edx
+ mov %eax,`16*3+0-64`($ctx)
+ lea (%rax,%rax,4),%eax # *5
+ mov %edx,`16*3+4-64`($ctx)
+ lea (%rdx,%rdx,4),%edx # *5
+ mov %eax,`16*4+0-64`($ctx)
+ mov $h1,$d1
+ mov %edx,`16*4+4-64`($ctx)
+ mov $r1,$d2
+
+ mov \$0x3ffffff,%eax
+ mov \$0x3ffffff,%edx
+ shr \$14,$d1
+ shr \$14,$d2
+ and $d1#d,%eax
+ and $d2#d,%edx
+ mov %eax,`16*5+0-64`($ctx)
+ lea (%rax,%rax,4),%eax # *5
+ mov %edx,`16*5+4-64`($ctx)
+ lea (%rdx,%rdx,4),%edx # *5
+ mov %eax,`16*6+0-64`($ctx)
+ shr \$26,$d1
+ mov %edx,`16*6+4-64`($ctx)
+ shr \$26,$d2
+
+ mov $h2,%rax
+ shl \$24,%rax
+ or %rax,$d1
+ mov $d1#d,`16*7+0-64`($ctx)
+ lea ($d1,$d1,4),$d1 # *5
+ mov $d2#d,`16*7+4-64`($ctx)
+ lea ($d2,$d2,4),$d2 # *5
+ mov $d1#d,`16*8+0-64`($ctx)
+ mov $d2#d,`16*8+4-64`($ctx)
+
+ mov $r1,%rax
+ call __poly1305_block # r^3
+
+ mov \$0x3ffffff,%eax # save r^3 base 2^26
+ mov $h0,$d1
+ and $h0#d,%eax
+ shr \$26,$d1
+ mov %eax,`16*0+12-64`($ctx)
+
+ mov \$0x3ffffff,%edx
+ and $d1#d,%edx
+ mov %edx,`16*1+12-64`($ctx)
+ lea (%rdx,%rdx,4),%edx # *5
+ shr \$26,$d1
+ mov %edx,`16*2+12-64`($ctx)
+
+ mov $h1,%rax
+ shl \$12,%rax
+ or $d1,%rax
+ and \$0x3ffffff,%eax
+ mov %eax,`16*3+12-64`($ctx)
+ lea (%rax,%rax,4),%eax # *5
+ mov $h1,$d1
+ mov %eax,`16*4+12-64`($ctx)
+
+ mov \$0x3ffffff,%edx
+ shr \$14,$d1
+ and $d1#d,%edx
+ mov %edx,`16*5+12-64`($ctx)
+ lea (%rdx,%rdx,4),%edx # *5
+ shr \$26,$d1
+ mov %edx,`16*6+12-64`($ctx)
+
+ mov $h2,%rax
+ shl \$24,%rax
+ or %rax,$d1
+ mov $d1#d,`16*7+12-64`($ctx)
+ lea ($d1,$d1,4),$d1 # *5
+ mov $d1#d,`16*8+12-64`($ctx)
+
+ mov $r1,%rax
+ call __poly1305_block # r^4
+
+ mov \$0x3ffffff,%eax # save r^4 base 2^26
+ mov $h0,$d1
+ and $h0#d,%eax
+ shr \$26,$d1
+ mov %eax,`16*0+8-64`($ctx)
+
+ mov \$0x3ffffff,%edx
+ and $d1#d,%edx
+ mov %edx,`16*1+8-64`($ctx)
+ lea (%rdx,%rdx,4),%edx # *5
+ shr \$26,$d1
+ mov %edx,`16*2+8-64`($ctx)
+
+ mov $h1,%rax
+ shl \$12,%rax
+ or $d1,%rax
+ and \$0x3ffffff,%eax
+ mov %eax,`16*3+8-64`($ctx)
+ lea (%rax,%rax,4),%eax # *5
+ mov $h1,$d1
+ mov %eax,`16*4+8-64`($ctx)
+
+ mov \$0x3ffffff,%edx
+ shr \$14,$d1
+ and $d1#d,%edx
+ mov %edx,`16*5+8-64`($ctx)
+ lea (%rdx,%rdx,4),%edx # *5
+ shr \$26,$d1
+ mov %edx,`16*6+8-64`($ctx)
+
+ mov $h2,%rax
+ shl \$24,%rax
+ or %rax,$d1
+ mov $d1#d,`16*7+8-64`($ctx)
+ lea ($d1,$d1,4),$d1 # *5
+ mov $d1#d,`16*8+8-64`($ctx)
+
+ lea -48-64($ctx),$ctx # size [de-]optimization
+ pop %rbp
+ ret
+.size __poly1305_init_avx,.-__poly1305_init_avx
+___
+
+&declare_function("poly1305_blocks_avx", 32, 4);
+$code.=<<___;
+.cfi_startproc
+ mov 20($ctx),%r8d # is_base2_26
+ cmp \$128,$len
+ jae .Lblocks_avx
+ test %r8d,%r8d
+ jz .Lblocks
+
+.Lblocks_avx:
+ and \$-16,$len
+ jz .Lno_data_avx
+
+ vzeroupper
+
+ test %r8d,%r8d
+ jz .Lbase2_64_avx
+
+ test \$31,$len
+ jz .Leven_avx
+
+ push %rbp
+.cfi_push %rbp
+ mov %rsp,%rbp
+ push %rbx
+.cfi_push %rbx
+ push %r12
+.cfi_push %r12
+ push %r13
+.cfi_push %r13
+ push %r14
+.cfi_push %r14
+ push %r15
+.cfi_push %r15
+.Lblocks_avx_body:
+
+ mov $len,%r15 # reassign $len
+
+ mov 0($ctx),$d1 # load hash value
+ mov 8($ctx),$d2
+ mov 16($ctx),$h2#d
+
+ mov 24($ctx),$r0 # load r
+ mov 32($ctx),$s1
+
+ ################################# base 2^26 -> base 2^64
+ mov $d1#d,$h0#d
+ and \$`-1*(1<<31)`,$d1
+ mov $d2,$r1 # borrow $r1
+ mov $d2#d,$h1#d
+ and \$`-1*(1<<31)`,$d2
+
+ shr \$6,$d1
+ shl \$52,$r1
+ add $d1,$h0
+ shr \$12,$h1
+ shr \$18,$d2
+ add $r1,$h0
+ adc $d2,$h1
+
+ mov $h2,$d1
+ shl \$40,$d1
+ shr \$24,$h2
+ add $d1,$h1
+ adc \$0,$h2 # can be partially reduced...
+
+ mov \$-4,$d2 # ... so reduce
+ mov $h2,$d1
+ and $h2,$d2
+ shr \$2,$d1
+ and \$3,$h2
+ add $d2,$d1 # =*5
+ add $d1,$h0
+ adc \$0,$h1
+ adc \$0,$h2
+
+ mov $s1,$r1
+ mov $s1,%rax
+ shr \$2,$s1
+ add $r1,$s1 # s1 = r1 + (r1 >> 2)
+
+ add 0($inp),$h0 # accumulate input
+ adc 8($inp),$h1
+ lea 16($inp),$inp
+ adc $padbit,$h2
+
+ call __poly1305_block
+
+ test $padbit,$padbit # if $padbit is zero,
+ jz .Lstore_base2_64_avx # store hash in base 2^64 format
+
+ ################################# base 2^64 -> base 2^26
+ mov $h0,%rax
+ mov $h0,%rdx
+ shr \$52,$h0
+ mov $h1,$r0
+ mov $h1,$r1
+ shr \$26,%rdx
+ and \$0x3ffffff,%rax # h[0]
+ shl \$12,$r0
+ and \$0x3ffffff,%rdx # h[1]
+ shr \$14,$h1
+ or $r0,$h0
+ shl \$24,$h2
+ and \$0x3ffffff,$h0 # h[2]
+ shr \$40,$r1
+ and \$0x3ffffff,$h1 # h[3]
+ or $r1,$h2 # h[4]
+
+ sub \$16,%r15
+ jz .Lstore_base2_26_avx
+
+ vmovd %rax#d,$H0
+ vmovd %rdx#d,$H1
+ vmovd $h0#d,$H2
+ vmovd $h1#d,$H3
+ vmovd $h2#d,$H4
+ jmp .Lproceed_avx
+
+.align 32
+.Lstore_base2_64_avx:
+ mov $h0,0($ctx)
+ mov $h1,8($ctx)
+ mov $h2,16($ctx) # note that is_base2_26 is zeroed
+ jmp .Ldone_avx
+
+.align 16
+.Lstore_base2_26_avx:
+ mov %rax#d,0($ctx) # store hash value base 2^26
+ mov %rdx#d,4($ctx)
+ mov $h0#d,8($ctx)
+ mov $h1#d,12($ctx)
+ mov $h2#d,16($ctx)
+.align 16
+.Ldone_avx:
+ pop %r15
+.cfi_restore %r15
+ pop %r14
+.cfi_restore %r14
+ pop %r13
+.cfi_restore %r13
+ pop %r12
+.cfi_restore %r12
+ pop %rbx
+.cfi_restore %rbx
+ pop %rbp
+.cfi_restore %rbp
+.Lno_data_avx:
+.Lblocks_avx_epilogue:
+ ret
+.cfi_endproc
+
+.align 32
+.Lbase2_64_avx:
+.cfi_startproc
+ push %rbp
+.cfi_push %rbp
+ mov %rsp,%rbp
+ push %rbx
+.cfi_push %rbx
+ push %r12
+.cfi_push %r12
+ push %r13
+.cfi_push %r13
+ push %r14
+.cfi_push %r14
+ push %r15
+.cfi_push %r15
+.Lbase2_64_avx_body:
+
+ mov $len,%r15 # reassign $len
+
+ mov 24($ctx),$r0 # load r
+ mov 32($ctx),$s1
+
+ mov 0($ctx),$h0 # load hash value
+ mov 8($ctx),$h1
+ mov 16($ctx),$h2#d
+
+ mov $s1,$r1
+ mov $s1,%rax
+ shr \$2,$s1
+ add $r1,$s1 # s1 = r1 + (r1 >> 2)
+
+ test \$31,$len
+ jz .Linit_avx
+
+ add 0($inp),$h0 # accumulate input
+ adc 8($inp),$h1
+ lea 16($inp),$inp
+ adc $padbit,$h2
+ sub \$16,%r15
+
+ call __poly1305_block
+
+.Linit_avx:
+ ################################# base 2^64 -> base 2^26
+ mov $h0,%rax
+ mov $h0,%rdx
+ shr \$52,$h0
+ mov $h1,$d1
+ mov $h1,$d2
+ shr \$26,%rdx
+ and \$0x3ffffff,%rax # h[0]
+ shl \$12,$d1
+ and \$0x3ffffff,%rdx # h[1]
+ shr \$14,$h1
+ or $d1,$h0
+ shl \$24,$h2
+ and \$0x3ffffff,$h0 # h[2]
+ shr \$40,$d2
+ and \$0x3ffffff,$h1 # h[3]
+ or $d2,$h2 # h[4]
+
+ vmovd %rax#d,$H0
+ vmovd %rdx#d,$H1
+ vmovd $h0#d,$H2
+ vmovd $h1#d,$H3
+ vmovd $h2#d,$H4
+ movl \$1,20($ctx) # set is_base2_26
+
+ call __poly1305_init_avx
+
+.Lproceed_avx:
+ mov %r15,$len
+ pop %r15
+.cfi_restore %r15
+ pop %r14
+.cfi_restore %r14
+ pop %r13
+.cfi_restore %r13
+ pop %r12
+.cfi_restore %r12
+ pop %rbx
+.cfi_restore %rbx
+ pop %rbp
+.cfi_restore %rbp
+.Lbase2_64_avx_epilogue:
+ jmp .Ldo_avx
+.cfi_endproc
+
+.align 32
+.Leven_avx:
+.cfi_startproc
+ vmovd 4*0($ctx),$H0 # load hash value
+ vmovd 4*1($ctx),$H1
+ vmovd 4*2($ctx),$H2
+ vmovd 4*3($ctx),$H3
+ vmovd 4*4($ctx),$H4
+
+.Ldo_avx:
+___
+$code.=<<___ if (!$win64);
+ lea 8(%rsp),%r10
+.cfi_def_cfa_register %r10
+ and \$-32,%rsp
+ sub \$-8,%rsp
+ lea -0x58(%rsp),%r11
+ sub \$0x178,%rsp
+___
+$code.=<<___ if ($win64);
+ lea -0xf8(%rsp),%r11
+ sub \$0x218,%rsp
+ vmovdqa %xmm6,0x50(%r11)
+ vmovdqa %xmm7,0x60(%r11)
+ vmovdqa %xmm8,0x70(%r11)
+ vmovdqa %xmm9,0x80(%r11)
+ vmovdqa %xmm10,0x90(%r11)
+ vmovdqa %xmm11,0xa0(%r11)
+ vmovdqa %xmm12,0xb0(%r11)
+ vmovdqa %xmm13,0xc0(%r11)
+ vmovdqa %xmm14,0xd0(%r11)
+ vmovdqa %xmm15,0xe0(%r11)
+.Ldo_avx_body:
+___
+$code.=<<___;
+ sub \$64,$len
+ lea -32($inp),%rax
+ cmovc %rax,$inp
+
+ vmovdqu `16*3`($ctx),$D4 # preload r0^2
+ lea `16*3+64`($ctx),$ctx # size optimization
+ lea .Lconst(%rip),%rcx
+
+ ################################################################
+ # load input
+ vmovdqu 16*2($inp),$T0
+ vmovdqu 16*3($inp),$T1
+ vmovdqa 64(%rcx),$MASK # .Lmask26
+
+ vpsrldq \$6,$T0,$T2 # splat input
+ vpsrldq \$6,$T1,$T3
+ vpunpckhqdq $T1,$T0,$T4 # 4
+ vpunpcklqdq $T1,$T0,$T0 # 0:1
+ vpunpcklqdq $T3,$T2,$T3 # 2:3
+
+ vpsrlq \$40,$T4,$T4 # 4
+ vpsrlq \$26,$T0,$T1
+ vpand $MASK,$T0,$T0 # 0
+ vpsrlq \$4,$T3,$T2
+ vpand $MASK,$T1,$T1 # 1
+ vpsrlq \$30,$T3,$T3
+ vpand $MASK,$T2,$T2 # 2
+ vpand $MASK,$T3,$T3 # 3
+ vpor 32(%rcx),$T4,$T4 # padbit, yes, always
+
+ jbe .Lskip_loop_avx
+
+ # expand and copy pre-calculated table to stack
+ vmovdqu `16*1-64`($ctx),$D1
+ vmovdqu `16*2-64`($ctx),$D2
+ vpshufd \$0xEE,$D4,$D3 # 34xx -> 3434
+ vpshufd \$0x44,$D4,$D0 # xx12 -> 1212
+ vmovdqa $D3,-0x90(%r11)
+ vmovdqa $D0,0x00(%rsp)
+ vpshufd \$0xEE,$D1,$D4
+ vmovdqu `16*3-64`($ctx),$D0
+ vpshufd \$0x44,$D1,$D1
+ vmovdqa $D4,-0x80(%r11)
+ vmovdqa $D1,0x10(%rsp)
+ vpshufd \$0xEE,$D2,$D3
+ vmovdqu `16*4-64`($ctx),$D1
+ vpshufd \$0x44,$D2,$D2
+ vmovdqa $D3,-0x70(%r11)
+ vmovdqa $D2,0x20(%rsp)
+ vpshufd \$0xEE,$D0,$D4
+ vmovdqu `16*5-64`($ctx),$D2
+ vpshufd \$0x44,$D0,$D0
+ vmovdqa $D4,-0x60(%r11)
+ vmovdqa $D0,0x30(%rsp)
+ vpshufd \$0xEE,$D1,$D3
+ vmovdqu `16*6-64`($ctx),$D0
+ vpshufd \$0x44,$D1,$D1
+ vmovdqa $D3,-0x50(%r11)
+ vmovdqa $D1,0x40(%rsp)
+ vpshufd \$0xEE,$D2,$D4
+ vmovdqu `16*7-64`($ctx),$D1
+ vpshufd \$0x44,$D2,$D2
+ vmovdqa $D4,-0x40(%r11)
+ vmovdqa $D2,0x50(%rsp)
+ vpshufd \$0xEE,$D0,$D3
+ vmovdqu `16*8-64`($ctx),$D2
+ vpshufd \$0x44,$D0,$D0
+ vmovdqa $D3,-0x30(%r11)
+ vmovdqa $D0,0x60(%rsp)
+ vpshufd \$0xEE,$D1,$D4
+ vpshufd \$0x44,$D1,$D1
+ vmovdqa $D4,-0x20(%r11)
+ vmovdqa $D1,0x70(%rsp)
+ vpshufd \$0xEE,$D2,$D3
+ vmovdqa 0x00(%rsp),$D4 # preload r0^2
+ vpshufd \$0x44,$D2,$D2
+ vmovdqa $D3,-0x10(%r11)
+ vmovdqa $D2,0x80(%rsp)
+
+ jmp .Loop_avx
+
+.align 32
+.Loop_avx:
+ ################################################################
+ # ((inp[0]*r^4+inp[2]*r^2+inp[4])*r^4+inp[6]*r^2
+ # ((inp[1]*r^4+inp[3]*r^2+inp[5])*r^3+inp[7]*r
+ # \___________________/
+ # ((inp[0]*r^4+inp[2]*r^2+inp[4])*r^4+inp[6]*r^2+inp[8])*r^2
+ # ((inp[1]*r^4+inp[3]*r^2+inp[5])*r^4+inp[7]*r^2+inp[9])*r
+ # \___________________/ \____________________/
+ #
+ # Note that we start with inp[2:3]*r^2. This is because it
+ # doesn't depend on reduction in previous iteration.
+ ################################################################
+ # d4 = h4*r0 + h3*r1 + h2*r2 + h1*r3 + h0*r4
+ # d3 = h3*r0 + h2*r1 + h1*r2 + h0*r3 + h4*5*r4
+ # d2 = h2*r0 + h1*r1 + h0*r2 + h4*5*r3 + h3*5*r4
+ # d1 = h1*r0 + h0*r1 + h4*5*r2 + h3*5*r3 + h2*5*r4
+ # d0 = h0*r0 + h4*5*r1 + h3*5*r2 + h2*5*r3 + h1*5*r4
+ #
+ # though note that $Tx and $Hx are "reversed" in this section,
+ # and $D4 is preloaded with r0^2...
+
+ vpmuludq $T0,$D4,$D0 # d0 = h0*r0
+ vpmuludq $T1,$D4,$D1 # d1 = h1*r0
+ vmovdqa $H2,0x20(%r11) # offload hash
+ vpmuludq $T2,$D4,$D2 # d3 = h2*r0
+ vmovdqa 0x10(%rsp),$H2 # r1^2
+ vpmuludq $T3,$D4,$D3 # d3 = h3*r0
+ vpmuludq $T4,$D4,$D4 # d4 = h4*r0
+
+ vmovdqa $H0,0x00(%r11) #
+ vpmuludq 0x20(%rsp),$T4,$H0 # h4*s1
+ vmovdqa $H1,0x10(%r11) #
+ vpmuludq $T3,$H2,$H1 # h3*r1
+ vpaddq $H0,$D0,$D0 # d0 += h4*s1
+ vpaddq $H1,$D4,$D4 # d4 += h3*r1
+ vmovdqa $H3,0x30(%r11) #
+ vpmuludq $T2,$H2,$H0 # h2*r1
+ vpmuludq $T1,$H2,$H1 # h1*r1
+ vpaddq $H0,$D3,$D3 # d3 += h2*r1
+ vmovdqa 0x30(%rsp),$H3 # r2^2
+ vpaddq $H1,$D2,$D2 # d2 += h1*r1
+ vmovdqa $H4,0x40(%r11) #
+ vpmuludq $T0,$H2,$H2 # h0*r1
+ vpmuludq $T2,$H3,$H0 # h2*r2
+ vpaddq $H2,$D1,$D1 # d1 += h0*r1
+
+ vmovdqa 0x40(%rsp),$H4 # s2^2
+ vpaddq $H0,$D4,$D4 # d4 += h2*r2
+ vpmuludq $T1,$H3,$H1 # h1*r2
+ vpmuludq $T0,$H3,$H3 # h0*r2
+ vpaddq $H1,$D3,$D3 # d3 += h1*r2
+ vmovdqa 0x50(%rsp),$H2 # r3^2
+ vpaddq $H3,$D2,$D2 # d2 += h0*r2
+ vpmuludq $T4,$H4,$H0 # h4*s2
+ vpmuludq $T3,$H4,$H4 # h3*s2
+ vpaddq $H0,$D1,$D1 # d1 += h4*s2
+ vmovdqa 0x60(%rsp),$H3 # s3^2
+ vpaddq $H4,$D0,$D0 # d0 += h3*s2
+
+ vmovdqa 0x80(%rsp),$H4 # s4^2
+ vpmuludq $T1,$H2,$H1 # h1*r3
+ vpmuludq $T0,$H2,$H2 # h0*r3
+ vpaddq $H1,$D4,$D4 # d4 += h1*r3
+ vpaddq $H2,$D3,$D3 # d3 += h0*r3
+ vpmuludq $T4,$H3,$H0 # h4*s3
+ vpmuludq $T3,$H3,$H1 # h3*s3
+ vpaddq $H0,$D2,$D2 # d2 += h4*s3
+ vmovdqu 16*0($inp),$H0 # load input
+ vpaddq $H1,$D1,$D1 # d1 += h3*s3
+ vpmuludq $T2,$H3,$H3 # h2*s3
+ vpmuludq $T2,$H4,$T2 # h2*s4
+ vpaddq $H3,$D0,$D0 # d0 += h2*s3
+
+ vmovdqu 16*1($inp),$H1 #
+ vpaddq $T2,$D1,$D1 # d1 += h2*s4
+ vpmuludq $T3,$H4,$T3 # h3*s4
+ vpmuludq $T4,$H4,$T4 # h4*s4
+ vpsrldq \$6,$H0,$H2 # splat input
+ vpaddq $T3,$D2,$D2 # d2 += h3*s4
+ vpaddq $T4,$D3,$D3 # d3 += h4*s4
+ vpsrldq \$6,$H1,$H3 #
+ vpmuludq 0x70(%rsp),$T0,$T4 # h0*r4
+ vpmuludq $T1,$H4,$T0 # h1*s4
+ vpunpckhqdq $H1,$H0,$H4 # 4
+ vpaddq $T4,$D4,$D4 # d4 += h0*r4
+ vmovdqa -0x90(%r11),$T4 # r0^4
+ vpaddq $T0,$D0,$D0 # d0 += h1*s4
+
+ vpunpcklqdq $H1,$H0,$H0 # 0:1
+ vpunpcklqdq $H3,$H2,$H3 # 2:3
+
+ #vpsrlq \$40,$H4,$H4 # 4
+ vpsrldq \$`40/8`,$H4,$H4 # 4
+ vpsrlq \$26,$H0,$H1
+ vpand $MASK,$H0,$H0 # 0
+ vpsrlq \$4,$H3,$H2
+ vpand $MASK,$H1,$H1 # 1
+ vpand 0(%rcx),$H4,$H4 # .Lmask24
+ vpsrlq \$30,$H3,$H3
+ vpand $MASK,$H2,$H2 # 2
+ vpand $MASK,$H3,$H3 # 3
+ vpor 32(%rcx),$H4,$H4 # padbit, yes, always
+
+ vpaddq 0x00(%r11),$H0,$H0 # add hash value
+ vpaddq 0x10(%r11),$H1,$H1
+ vpaddq 0x20(%r11),$H2,$H2
+ vpaddq 0x30(%r11),$H3,$H3
+ vpaddq 0x40(%r11),$H4,$H4
+
+ lea 16*2($inp),%rax
+ lea 16*4($inp),$inp
+ sub \$64,$len
+ cmovc %rax,$inp
+
+ ################################################################
+ # Now we accumulate (inp[0:1]+hash)*r^4
+ ################################################################
+ # d4 = h4*r0 + h3*r1 + h2*r2 + h1*r3 + h0*r4
+ # d3 = h3*r0 + h2*r1 + h1*r2 + h0*r3 + h4*5*r4
+ # d2 = h2*r0 + h1*r1 + h0*r2 + h4*5*r3 + h3*5*r4
+ # d1 = h1*r0 + h0*r1 + h4*5*r2 + h3*5*r3 + h2*5*r4
+ # d0 = h0*r0 + h4*5*r1 + h3*5*r2 + h2*5*r3 + h1*5*r4
+
+ vpmuludq $H0,$T4,$T0 # h0*r0
+ vpmuludq $H1,$T4,$T1 # h1*r0
+ vpaddq $T0,$D0,$D0
+ vpaddq $T1,$D1,$D1
+ vmovdqa -0x80(%r11),$T2 # r1^4
+ vpmuludq $H2,$T4,$T0 # h2*r0
+ vpmuludq $H3,$T4,$T1 # h3*r0
+ vpaddq $T0,$D2,$D2
+ vpaddq $T1,$D3,$D3
+ vpmuludq $H4,$T4,$T4 # h4*r0
+ vpmuludq -0x70(%r11),$H4,$T0 # h4*s1
+ vpaddq $T4,$D4,$D4
+
+ vpaddq $T0,$D0,$D0 # d0 += h4*s1
+ vpmuludq $H2,$T2,$T1 # h2*r1
+ vpmuludq $H3,$T2,$T0 # h3*r1
+ vpaddq $T1,$D3,$D3 # d3 += h2*r1
+ vmovdqa -0x60(%r11),$T3 # r2^4
+ vpaddq $T0,$D4,$D4 # d4 += h3*r1
+ vpmuludq $H1,$T2,$T1 # h1*r1
+ vpmuludq $H0,$T2,$T2 # h0*r1
+ vpaddq $T1,$D2,$D2 # d2 += h1*r1
+ vpaddq $T2,$D1,$D1 # d1 += h0*r1
+
+ vmovdqa -0x50(%r11),$T4 # s2^4
+ vpmuludq $H2,$T3,$T0 # h2*r2
+ vpmuludq $H1,$T3,$T1 # h1*r2
+ vpaddq $T0,$D4,$D4 # d4 += h2*r2
+ vpaddq $T1,$D3,$D3 # d3 += h1*r2
+ vmovdqa -0x40(%r11),$T2 # r3^4
+ vpmuludq $H0,$T3,$T3 # h0*r2
+ vpmuludq $H4,$T4,$T0 # h4*s2
+ vpaddq $T3,$D2,$D2 # d2 += h0*r2
+ vpaddq $T0,$D1,$D1 # d1 += h4*s2
+ vmovdqa -0x30(%r11),$T3 # s3^4
+ vpmuludq $H3,$T4,$T4 # h3*s2
+ vpmuludq $H1,$T2,$T1 # h1*r3
+ vpaddq $T4,$D0,$D0 # d0 += h3*s2
+
+ vmovdqa -0x10(%r11),$T4 # s4^4
+ vpaddq $T1,$D4,$D4 # d4 += h1*r3
+ vpmuludq $H0,$T2,$T2 # h0*r3
+ vpmuludq $H4,$T3,$T0 # h4*s3
+ vpaddq $T2,$D3,$D3 # d3 += h0*r3
+ vpaddq $T0,$D2,$D2 # d2 += h4*s3
+ vmovdqu 16*2($inp),$T0 # load input
+ vpmuludq $H3,$T3,$T2 # h3*s3
+ vpmuludq $H2,$T3,$T3 # h2*s3
+ vpaddq $T2,$D1,$D1 # d1 += h3*s3
+ vmovdqu 16*3($inp),$T1 #
+ vpaddq $T3,$D0,$D0 # d0 += h2*s3
+
+ vpmuludq $H2,$T4,$H2 # h2*s4
+ vpmuludq $H3,$T4,$H3 # h3*s4
+ vpsrldq \$6,$T0,$T2 # splat input
+ vpaddq $H2,$D1,$D1 # d1 += h2*s4
+ vpmuludq $H4,$T4,$H4 # h4*s4
+ vpsrldq \$6,$T1,$T3 #
+ vpaddq $H3,$D2,$H2 # h2 = d2 + h3*s4
+ vpaddq $H4,$D3,$H3 # h3 = d3 + h4*s4
+ vpmuludq -0x20(%r11),$H0,$H4 # h0*r4
+ vpmuludq $H1,$T4,$H0
+ vpunpckhqdq $T1,$T0,$T4 # 4
+ vpaddq $H4,$D4,$H4 # h4 = d4 + h0*r4
+ vpaddq $H0,$D0,$H0 # h0 = d0 + h1*s4
+
+ vpunpcklqdq $T1,$T0,$T0 # 0:1
+ vpunpcklqdq $T3,$T2,$T3 # 2:3
+
+ #vpsrlq \$40,$T4,$T4 # 4
+ vpsrldq \$`40/8`,$T4,$T4 # 4
+ vpsrlq \$26,$T0,$T1
+ vmovdqa 0x00(%rsp),$D4 # preload r0^2
+ vpand $MASK,$T0,$T0 # 0
+ vpsrlq \$4,$T3,$T2
+ vpand $MASK,$T1,$T1 # 1
+ vpand 0(%rcx),$T4,$T4 # .Lmask24
+ vpsrlq \$30,$T3,$T3
+ vpand $MASK,$T2,$T2 # 2
+ vpand $MASK,$T3,$T3 # 3
+ vpor 32(%rcx),$T4,$T4 # padbit, yes, always
+
+ ################################################################
+ # lazy reduction as discussed in "NEON crypto" by D.J. Bernstein
+ # and P. Schwabe
+
+ vpsrlq \$26,$H3,$D3
+ vpand $MASK,$H3,$H3
+ vpaddq $D3,$H4,$H4 # h3 -> h4
+
+ vpsrlq \$26,$H0,$D0
+ vpand $MASK,$H0,$H0
+ vpaddq $D0,$D1,$H1 # h0 -> h1
+
+ vpsrlq \$26,$H4,$D0
+ vpand $MASK,$H4,$H4
+
+ vpsrlq \$26,$H1,$D1
+ vpand $MASK,$H1,$H1
+ vpaddq $D1,$H2,$H2 # h1 -> h2
+
+ vpaddq $D0,$H0,$H0
+ vpsllq \$2,$D0,$D0
+ vpaddq $D0,$H0,$H0 # h4 -> h0
+
+ vpsrlq \$26,$H2,$D2
+ vpand $MASK,$H2,$H2
+ vpaddq $D2,$H3,$H3 # h2 -> h3
+
+ vpsrlq \$26,$H0,$D0
+ vpand $MASK,$H0,$H0
+ vpaddq $D0,$H1,$H1 # h0 -> h1
+
+ vpsrlq \$26,$H3,$D3
+ vpand $MASK,$H3,$H3
+ vpaddq $D3,$H4,$H4 # h3 -> h4
+
+ ja .Loop_avx
+
+.Lskip_loop_avx:
+ ################################################################
+ # multiply (inp[0:1]+hash) or inp[2:3] by r^2:r^1
+
+ vpshufd \$0x10,$D4,$D4 # r0^n, xx12 -> x1x2
+ add \$32,$len
+ jnz .Long_tail_avx
+
+ vpaddq $H2,$T2,$T2
+ vpaddq $H0,$T0,$T0
+ vpaddq $H1,$T1,$T1
+ vpaddq $H3,$T3,$T3
+ vpaddq $H4,$T4,$T4
+
+.Long_tail_avx:
+ vmovdqa $H2,0x20(%r11)
+ vmovdqa $H0,0x00(%r11)
+ vmovdqa $H1,0x10(%r11)
+ vmovdqa $H3,0x30(%r11)
+ vmovdqa $H4,0x40(%r11)
+
+ # d4 = h4*r0 + h3*r1 + h2*r2 + h1*r3 + h0*r4
+ # d3 = h3*r0 + h2*r1 + h1*r2 + h0*r3 + h4*5*r4
+ # d2 = h2*r0 + h1*r1 + h0*r2 + h4*5*r3 + h3*5*r4
+ # d1 = h1*r0 + h0*r1 + h4*5*r2 + h3*5*r3 + h2*5*r4
+ # d0 = h0*r0 + h4*5*r1 + h3*5*r2 + h2*5*r3 + h1*5*r4
+
+ vpmuludq $T2,$D4,$D2 # d2 = h2*r0
+ vpmuludq $T0,$D4,$D0 # d0 = h0*r0
+ vpshufd \$0x10,`16*1-64`($ctx),$H2 # r1^n
+ vpmuludq $T1,$D4,$D1 # d1 = h1*r0
+ vpmuludq $T3,$D4,$D3 # d3 = h3*r0
+ vpmuludq $T4,$D4,$D4 # d4 = h4*r0
+
+ vpmuludq $T3,$H2,$H0 # h3*r1
+ vpaddq $H0,$D4,$D4 # d4 += h3*r1
+ vpshufd \$0x10,`16*2-64`($ctx),$H3 # s1^n
+ vpmuludq $T2,$H2,$H1 # h2*r1
+ vpaddq $H1,$D3,$D3 # d3 += h2*r1
+ vpshufd \$0x10,`16*3-64`($ctx),$H4 # r2^n
+ vpmuludq $T1,$H2,$H0 # h1*r1
+ vpaddq $H0,$D2,$D2 # d2 += h1*r1
+ vpmuludq $T0,$H2,$H2 # h0*r1
+ vpaddq $H2,$D1,$D1 # d1 += h0*r1
+ vpmuludq $T4,$H3,$H3 # h4*s1
+ vpaddq $H3,$D0,$D0 # d0 += h4*s1
+
+ vpshufd \$0x10,`16*4-64`($ctx),$H2 # s2^n
+ vpmuludq $T2,$H4,$H1 # h2*r2
+ vpaddq $H1,$D4,$D4 # d4 += h2*r2
+ vpmuludq $T1,$H4,$H0 # h1*r2
+ vpaddq $H0,$D3,$D3 # d3 += h1*r2
+ vpshufd \$0x10,`16*5-64`($ctx),$H3 # r3^n
+ vpmuludq $T0,$H4,$H4 # h0*r2
+ vpaddq $H4,$D2,$D2 # d2 += h0*r2
+ vpmuludq $T4,$H2,$H1 # h4*s2
+ vpaddq $H1,$D1,$D1 # d1 += h4*s2
+ vpshufd \$0x10,`16*6-64`($ctx),$H4 # s3^n
+ vpmuludq $T3,$H2,$H2 # h3*s2
+ vpaddq $H2,$D0,$D0 # d0 += h3*s2
+
+ vpmuludq $T1,$H3,$H0 # h1*r3
+ vpaddq $H0,$D4,$D4 # d4 += h1*r3
+ vpmuludq $T0,$H3,$H3 # h0*r3
+ vpaddq $H3,$D3,$D3 # d3 += h0*r3
+ vpshufd \$0x10,`16*7-64`($ctx),$H2 # r4^n
+ vpmuludq $T4,$H4,$H1 # h4*s3
+ vpaddq $H1,$D2,$D2 # d2 += h4*s3
+ vpshufd \$0x10,`16*8-64`($ctx),$H3 # s4^n
+ vpmuludq $T3,$H4,$H0 # h3*s3
+ vpaddq $H0,$D1,$D1 # d1 += h3*s3
+ vpmuludq $T2,$H4,$H4 # h2*s3
+ vpaddq $H4,$D0,$D0 # d0 += h2*s3
+
+ vpmuludq $T0,$H2,$H2 # h0*r4
+ vpaddq $H2,$D4,$D4 # h4 = d4 + h0*r4
+ vpmuludq $T4,$H3,$H1 # h4*s4
+ vpaddq $H1,$D3,$D3 # h3 = d3 + h4*s4
+ vpmuludq $T3,$H3,$H0 # h3*s4
+ vpaddq $H0,$D2,$D2 # h2 = d2 + h3*s4
+ vpmuludq $T2,$H3,$H1 # h2*s4
+ vpaddq $H1,$D1,$D1 # h1 = d1 + h2*s4
+ vpmuludq $T1,$H3,$H3 # h1*s4
+ vpaddq $H3,$D0,$D0 # h0 = d0 + h1*s4
+
+ jz .Lshort_tail_avx
+
+ vmovdqu 16*0($inp),$H0 # load input
+ vmovdqu 16*1($inp),$H1
+
+ vpsrldq \$6,$H0,$H2 # splat input
+ vpsrldq \$6,$H1,$H3
+ vpunpckhqdq $H1,$H0,$H4 # 4
+ vpunpcklqdq $H1,$H0,$H0 # 0:1
+ vpunpcklqdq $H3,$H2,$H3 # 2:3
+
+ vpsrlq \$40,$H4,$H4 # 4
+ vpsrlq \$26,$H0,$H1
+ vpand $MASK,$H0,$H0 # 0
+ vpsrlq \$4,$H3,$H2
+ vpand $MASK,$H1,$H1 # 1
+ vpsrlq \$30,$H3,$H3
+ vpand $MASK,$H2,$H2 # 2
+ vpand $MASK,$H3,$H3 # 3
+ vpor 32(%rcx),$H4,$H4 # padbit, yes, always
+
+ vpshufd \$0x32,`16*0-64`($ctx),$T4 # r0^n, 34xx -> x3x4
+ vpaddq 0x00(%r11),$H0,$H0
+ vpaddq 0x10(%r11),$H1,$H1
+ vpaddq 0x20(%r11),$H2,$H2
+ vpaddq 0x30(%r11),$H3,$H3
+ vpaddq 0x40(%r11),$H4,$H4
+
+ ################################################################
+ # multiply (inp[0:1]+hash) by r^4:r^3 and accumulate
+
+ vpmuludq $H0,$T4,$T0 # h0*r0
+ vpaddq $T0,$D0,$D0 # d0 += h0*r0
+ vpmuludq $H1,$T4,$T1 # h1*r0
+ vpaddq $T1,$D1,$D1 # d1 += h1*r0
+ vpmuludq $H2,$T4,$T0 # h2*r0
+ vpaddq $T0,$D2,$D2 # d2 += h2*r0
+ vpshufd \$0x32,`16*1-64`($ctx),$T2 # r1^n
+ vpmuludq $H3,$T4,$T1 # h3*r0
+ vpaddq $T1,$D3,$D3 # d3 += h3*r0
+ vpmuludq $H4,$T4,$T4 # h4*r0
+ vpaddq $T4,$D4,$D4 # d4 += h4*r0
+
+ vpmuludq $H3,$T2,$T0 # h3*r1
+ vpaddq $T0,$D4,$D4 # d4 += h3*r1
+ vpshufd \$0x32,`16*2-64`($ctx),$T3 # s1
+ vpmuludq $H2,$T2,$T1 # h2*r1
+ vpaddq $T1,$D3,$D3 # d3 += h2*r1
+ vpshufd \$0x32,`16*3-64`($ctx),$T4 # r2
+ vpmuludq $H1,$T2,$T0 # h1*r1
+ vpaddq $T0,$D2,$D2 # d2 += h1*r1
+ vpmuludq $H0,$T2,$T2 # h0*r1
+ vpaddq $T2,$D1,$D1 # d1 += h0*r1
+ vpmuludq $H4,$T3,$T3 # h4*s1
+ vpaddq $T3,$D0,$D0 # d0 += h4*s1
+
+ vpshufd \$0x32,`16*4-64`($ctx),$T2 # s2
+ vpmuludq $H2,$T4,$T1 # h2*r2
+ vpaddq $T1,$D4,$D4 # d4 += h2*r2
+ vpmuludq $H1,$T4,$T0 # h1*r2
+ vpaddq $T0,$D3,$D3 # d3 += h1*r2
+ vpshufd \$0x32,`16*5-64`($ctx),$T3 # r3
+ vpmuludq $H0,$T4,$T4 # h0*r2
+ vpaddq $T4,$D2,$D2 # d2 += h0*r2
+ vpmuludq $H4,$T2,$T1 # h4*s2
+ vpaddq $T1,$D1,$D1 # d1 += h4*s2
+ vpshufd \$0x32,`16*6-64`($ctx),$T4 # s3
+ vpmuludq $H3,$T2,$T2 # h3*s2
+ vpaddq $T2,$D0,$D0 # d0 += h3*s2
+
+ vpmuludq $H1,$T3,$T0 # h1*r3
+ vpaddq $T0,$D4,$D4 # d4 += h1*r3
+ vpmuludq $H0,$T3,$T3 # h0*r3
+ vpaddq $T3,$D3,$D3 # d3 += h0*r3
+ vpshufd \$0x32,`16*7-64`($ctx),$T2 # r4
+ vpmuludq $H4,$T4,$T1 # h4*s3
+ vpaddq $T1,$D2,$D2 # d2 += h4*s3
+ vpshufd \$0x32,`16*8-64`($ctx),$T3 # s4
+ vpmuludq $H3,$T4,$T0 # h3*s3
+ vpaddq $T0,$D1,$D1 # d1 += h3*s3
+ vpmuludq $H2,$T4,$T4 # h2*s3
+ vpaddq $T4,$D0,$D0 # d0 += h2*s3
+
+ vpmuludq $H0,$T2,$T2 # h0*r4
+ vpaddq $T2,$D4,$D4 # d4 += h0*r4
+ vpmuludq $H4,$T3,$T1 # h4*s4
+ vpaddq $T1,$D3,$D3 # d3 += h4*s4
+ vpmuludq $H3,$T3,$T0 # h3*s4
+ vpaddq $T0,$D2,$D2 # d2 += h3*s4
+ vpmuludq $H2,$T3,$T1 # h2*s4
+ vpaddq $T1,$D1,$D1 # d1 += h2*s4
+ vpmuludq $H1,$T3,$T3 # h1*s4
+ vpaddq $T3,$D0,$D0 # d0 += h1*s4
+
+.Lshort_tail_avx:
+ ################################################################
+ # horizontal addition
+
+ vpsrldq \$8,$D4,$T4
+ vpsrldq \$8,$D3,$T3
+ vpsrldq \$8,$D1,$T1
+ vpsrldq \$8,$D0,$T0
+ vpsrldq \$8,$D2,$T2
+ vpaddq $T3,$D3,$D3
+ vpaddq $T4,$D4,$D4
+ vpaddq $T0,$D0,$D0
+ vpaddq $T1,$D1,$D1
+ vpaddq $T2,$D2,$D2
+
+ ################################################################
+ # lazy reduction
+
+ vpsrlq \$26,$D3,$H3
+ vpand $MASK,$D3,$D3
+ vpaddq $H3,$D4,$D4 # h3 -> h4
+
+ vpsrlq \$26,$D0,$H0
+ vpand $MASK,$D0,$D0
+ vpaddq $H0,$D1,$D1 # h0 -> h1
+
+ vpsrlq \$26,$D4,$H4
+ vpand $MASK,$D4,$D4
+
+ vpsrlq \$26,$D1,$H1
+ vpand $MASK,$D1,$D1
+ vpaddq $H1,$D2,$D2 # h1 -> h2
+
+ vpaddq $H4,$D0,$D0
+ vpsllq \$2,$H4,$H4
+ vpaddq $H4,$D0,$D0 # h4 -> h0
+
+ vpsrlq \$26,$D2,$H2
+ vpand $MASK,$D2,$D2
+ vpaddq $H2,$D3,$D3 # h2 -> h3
+
+ vpsrlq \$26,$D0,$H0
+ vpand $MASK,$D0,$D0
+ vpaddq $H0,$D1,$D1 # h0 -> h1
+
+ vpsrlq \$26,$D3,$H3
+ vpand $MASK,$D3,$D3
+ vpaddq $H3,$D4,$D4 # h3 -> h4
+
+ vmovd $D0,`4*0-48-64`($ctx) # save partially reduced
+ vmovd $D1,`4*1-48-64`($ctx)
+ vmovd $D2,`4*2-48-64`($ctx)
+ vmovd $D3,`4*3-48-64`($ctx)
+ vmovd $D4,`4*4-48-64`($ctx)
+___
+$code.=<<___ if ($win64);
+ vmovdqa 0x50(%r11),%xmm6
+ vmovdqa 0x60(%r11),%xmm7
+ vmovdqa 0x70(%r11),%xmm8
+ vmovdqa 0x80(%r11),%xmm9
+ vmovdqa 0x90(%r11),%xmm10
+ vmovdqa 0xa0(%r11),%xmm11
+ vmovdqa 0xb0(%r11),%xmm12
+ vmovdqa 0xc0(%r11),%xmm13
+ vmovdqa 0xd0(%r11),%xmm14
+ vmovdqa 0xe0(%r11),%xmm15
+ lea 0xf8(%r11),%rsp
+.Ldo_avx_epilogue:
+___
+$code.=<<___ if (!$win64);
+ lea -8(%r10),%rsp
+.cfi_def_cfa_register %rsp
+___
+$code.=<<___;
+ vzeroupper
+ ret
+.cfi_endproc
+___
+&end_function("poly1305_blocks_avx");
+
+&declare_function("poly1305_emit_avx", 32, 3);
+$code.=<<___;
+ cmpl \$0,20($ctx) # is_base2_26?
+ je .Lemit
+
+ mov 0($ctx),%eax # load hash value base 2^26
+ mov 4($ctx),%ecx
+ mov 8($ctx),%r8d
+ mov 12($ctx),%r11d
+ mov 16($ctx),%r10d
+
+ shl \$26,%rcx # base 2^26 -> base 2^64
+ mov %r8,%r9
+ shl \$52,%r8
+ add %rcx,%rax
+ shr \$12,%r9
+ add %rax,%r8 # h0
+ adc \$0,%r9
+
+ shl \$14,%r11
+ mov %r10,%rax
+ shr \$24,%r10
+ add %r11,%r9
+ shl \$40,%rax
+ add %rax,%r9 # h1
+ adc \$0,%r10 # h2
+
+ mov %r10,%rax # could be partially reduced, so reduce
+ mov %r10,%rcx
+ and \$3,%r10
+ shr \$2,%rax
+ and \$-4,%rcx
+ add %rcx,%rax
+ add %rax,%r8
+ adc \$0,%r9
+ adc \$0,%r10
+
+ mov %r8,%rax
+ add \$5,%r8 # compare to modulus
+ mov %r9,%rcx
+ adc \$0,%r9
+ adc \$0,%r10
+ shr \$2,%r10 # did 130-bit value overflow?
+ cmovnz %r8,%rax
+ cmovnz %r9,%rcx
+
+ add 0($nonce),%rax # accumulate nonce
+ adc 8($nonce),%rcx
+ mov %rax,0($mac) # write result
+ mov %rcx,8($mac)
+
+ ret
+___
+&end_function("poly1305_emit_avx");
+
+if ($kernel) {
+ $code .= "#endif\n";
+}
+
+if ($avx>1) {
+
+if ($kernel) {
+ $code .= "#ifdef CONFIG_AS_AVX2\n";
+}
+
+my ($H0,$H1,$H2,$H3,$H4, $MASK, $T4,$T0,$T1,$T2,$T3, $D0,$D1,$D2,$D3,$D4) =
+ map("%ymm$_",(0..15));
+my $S4=$MASK;
+
+sub poly1305_blocks_avxN {
+ my ($avx512) = @_;
+ my $suffix = $avx512 ? "_avx512" : "";
+$code.=<<___;
+.cfi_startproc
+ mov 20($ctx),%r8d # is_base2_26
+ cmp \$128,$len
+ jae .Lblocks_avx2$suffix
+ test %r8d,%r8d
+ jz .Lblocks
+
+.Lblocks_avx2$suffix:
+ and \$-16,$len
+ jz .Lno_data_avx2$suffix
+
+ vzeroupper
+
+ test %r8d,%r8d
+ jz .Lbase2_64_avx2$suffix
+
+ test \$63,$len
+ jz .Leven_avx2$suffix
+
+ push %rbp
+.cfi_push %rbp
+ mov %rsp,%rbp
+ push %rbx
+.cfi_push %rbx
+ push %r12
+.cfi_push %r12
+ push %r13
+.cfi_push %r13
+ push %r14
+.cfi_push %r14
+ push %r15
+.cfi_push %r15
+.Lblocks_avx2_body$suffix:
+
+ mov $len,%r15 # reassign $len
+
+ mov 0($ctx),$d1 # load hash value
+ mov 8($ctx),$d2
+ mov 16($ctx),$h2#d
+
+ mov 24($ctx),$r0 # load r
+ mov 32($ctx),$s1
+
+ ################################# base 2^26 -> base 2^64
+ mov $d1#d,$h0#d
+ and \$`-1*(1<<31)`,$d1
+ mov $d2,$r1 # borrow $r1
+ mov $d2#d,$h1#d
+ and \$`-1*(1<<31)`,$d2
+
+ shr \$6,$d1
+ shl \$52,$r1
+ add $d1,$h0
+ shr \$12,$h1
+ shr \$18,$d2
+ add $r1,$h0
+ adc $d2,$h1
+
+ mov $h2,$d1
+ shl \$40,$d1
+ shr \$24,$h2
+ add $d1,$h1
+ adc \$0,$h2 # can be partially reduced...
+
+ mov \$-4,$d2 # ... so reduce
+ mov $h2,$d1
+ and $h2,$d2
+ shr \$2,$d1
+ and \$3,$h2
+ add $d2,$d1 # =*5
+ add $d1,$h0
+ adc \$0,$h1
+ adc \$0,$h2
+
+ mov $s1,$r1
+ mov $s1,%rax
+ shr \$2,$s1
+ add $r1,$s1 # s1 = r1 + (r1 >> 2)
+
+.Lbase2_26_pre_avx2$suffix:
+ add 0($inp),$h0 # accumulate input
+ adc 8($inp),$h1
+ lea 16($inp),$inp
+ adc $padbit,$h2
+ sub \$16,%r15
+
+ call __poly1305_block
+ mov $r1,%rax
+
+ test \$63,%r15
+ jnz .Lbase2_26_pre_avx2$suffix
+
+ test $padbit,$padbit # if $padbit is zero,
+ jz .Lstore_base2_64_avx2$suffix # store hash in base 2^64 format
+
+ ################################# base 2^64 -> base 2^26
+ mov $h0,%rax
+ mov $h0,%rdx
+ shr \$52,$h0
+ mov $h1,$r0
+ mov $h1,$r1
+ shr \$26,%rdx
+ and \$0x3ffffff,%rax # h[0]
+ shl \$12,$r0
+ and \$0x3ffffff,%rdx # h[1]
+ shr \$14,$h1
+ or $r0,$h0
+ shl \$24,$h2
+ and \$0x3ffffff,$h0 # h[2]
+ shr \$40,$r1
+ and \$0x3ffffff,$h1 # h[3]
+ or $r1,$h2 # h[4]
+
+ test %r15,%r15
+ jz .Lstore_base2_26_avx2$suffix
+
+ vmovd %rax#d,%x#$H0
+ vmovd %rdx#d,%x#$H1
+ vmovd $h0#d,%x#$H2
+ vmovd $h1#d,%x#$H3
+ vmovd $h2#d,%x#$H4
+ jmp .Lproceed_avx2$suffix
+
+.align 32
+.Lstore_base2_64_avx2$suffix:
+ mov $h0,0($ctx)
+ mov $h1,8($ctx)
+ mov $h2,16($ctx) # note that is_base2_26 is zeroed
+ jmp .Ldone_avx2$suffix
+
+.align 16
+.Lstore_base2_26_avx2$suffix:
+ mov %rax#d,0($ctx) # store hash value base 2^26
+ mov %rdx#d,4($ctx)
+ mov $h0#d,8($ctx)
+ mov $h1#d,12($ctx)
+ mov $h2#d,16($ctx)
+.align 16
+.Ldone_avx2$suffix:
+ pop %r15
+.cfi_restore %r15
+ pop %r14
+.cfi_restore %r14
+ pop %r13
+.cfi_restore %r13
+ pop %r12
+.cfi_restore %r12
+ pop %rbx
+.cfi_restore %rbx
+ pop %rbp
+.cfi_restore %rbp
+.Lno_data_avx2$suffix:
+.Lblocks_avx2_epilogue$suffix:
+ ret
+.cfi_endproc
+
+.align 32
+.Lbase2_64_avx2$suffix:
+.cfi_startproc
+ push %rbp
+.cfi_push %rbp
+ mov %rsp,%rbp
+ push %rbx
+.cfi_push %rbx
+ push %r12
+.cfi_push %r12
+ push %r13
+.cfi_push %r13
+ push %r14
+.cfi_push %r14
+ push %r15
+.cfi_push %r15
+.Lbase2_64_avx2_body$suffix:
+
+ mov $len,%r15 # reassign $len
+
+ mov 24($ctx),$r0 # load r
+ mov 32($ctx),$s1
+
+ mov 0($ctx),$h0 # load hash value
+ mov 8($ctx),$h1
+ mov 16($ctx),$h2#d
+
+ mov $s1,$r1
+ mov $s1,%rax
+ shr \$2,$s1
+ add $r1,$s1 # s1 = r1 + (r1 >> 2)
+
+ test \$63,$len
+ jz .Linit_avx2$suffix
+
+.Lbase2_64_pre_avx2$suffix:
+ add 0($inp),$h0 # accumulate input
+ adc 8($inp),$h1
+ lea 16($inp),$inp
+ adc $padbit,$h2
+ sub \$16,%r15
+
+ call __poly1305_block
+ mov $r1,%rax
+
+ test \$63,%r15
+ jnz .Lbase2_64_pre_avx2$suffix
+
+.Linit_avx2$suffix:
+ ################################# base 2^64 -> base 2^26
+ mov $h0,%rax
+ mov $h0,%rdx
+ shr \$52,$h0
+ mov $h1,$d1
+ mov $h1,$d2
+ shr \$26,%rdx
+ and \$0x3ffffff,%rax # h[0]
+ shl \$12,$d1
+ and \$0x3ffffff,%rdx # h[1]
+ shr \$14,$h1
+ or $d1,$h0
+ shl \$24,$h2
+ and \$0x3ffffff,$h0 # h[2]
+ shr \$40,$d2
+ and \$0x3ffffff,$h1 # h[3]
+ or $d2,$h2 # h[4]
+
+ vmovd %rax#d,%x#$H0
+ vmovd %rdx#d,%x#$H1
+ vmovd $h0#d,%x#$H2
+ vmovd $h1#d,%x#$H3
+ vmovd $h2#d,%x#$H4
+ movl \$1,20($ctx) # set is_base2_26
+
+ call __poly1305_init_avx
+
+.Lproceed_avx2$suffix:
+ mov %r15,$len # restore $len
+___
+$code.=<<___ if (!$kernel);
+ mov OPENSSL_ia32cap_P+8(%rip),%r9d
+ mov \$`(1<<31|1<<30|1<<16)`,%r11d
+___
+$code.=<<___;
+ pop %r15
+.cfi_restore %r15
+ pop %r14
+.cfi_restore %r14
+ pop %r13
+.cfi_restore %r13
+ pop %r12
+.cfi_restore %r12
+ pop %rbx
+.cfi_restore %rbx
+ pop %rbp
+.cfi_restore %rbp
+.Lbase2_64_avx2_epilogue$suffix:
+ jmp .Ldo_avx2$suffix
+.cfi_endproc
+
+.align 32
+.Leven_avx2$suffix:
+.cfi_startproc
+___
+$code.=<<___ if (!$kernel);
+ mov OPENSSL_ia32cap_P+8(%rip),%r9d
+___
+$code.=<<___;
+ vmovd 4*0($ctx),%x#$H0 # load hash value base 2^26
+ vmovd 4*1($ctx),%x#$H1
+ vmovd 4*2($ctx),%x#$H2
+ vmovd 4*3($ctx),%x#$H3
+ vmovd 4*4($ctx),%x#$H4
+
+.Ldo_avx2$suffix:
+___
+$code.=<<___ if (!$kernel && $avx>2);
+ cmp \$512,$len
+ jb .Lskip_avx512
+ and %r11d,%r9d
+ test \$`1<<16`,%r9d # check for AVX512F
+ jnz .Lblocks_avx512
+.Lskip_avx512$suffix:
+___
+$code.=<<___ if ($avx > 2 && $avx512 && $kernel);
+ cmp \$512,$len
+ jae .Lblocks_avx512
+___
+$code.=<<___ if (!$win64);
+ lea 8(%rsp),%r10
+.cfi_def_cfa_register %r10
+ sub \$0x128,%rsp
+___
+$code.=<<___ if ($win64);
+ lea 8(%rsp),%r10
+ sub \$0x1c8,%rsp
+ vmovdqa %xmm6,-0xb0(%r10)
+ vmovdqa %xmm7,-0xa0(%r10)
+ vmovdqa %xmm8,-0x90(%r10)
+ vmovdqa %xmm9,-0x80(%r10)
+ vmovdqa %xmm10,-0x70(%r10)
+ vmovdqa %xmm11,-0x60(%r10)
+ vmovdqa %xmm12,-0x50(%r10)
+ vmovdqa %xmm13,-0x40(%r10)
+ vmovdqa %xmm14,-0x30(%r10)
+ vmovdqa %xmm15,-0x20(%r10)
+.Ldo_avx2_body$suffix:
+___
+$code.=<<___;
+ lea .Lconst(%rip),%rcx
+ lea 48+64($ctx),$ctx # size optimization
+ vmovdqa 96(%rcx),$T0 # .Lpermd_avx2
+
+ # expand and copy pre-calculated table to stack
+ vmovdqu `16*0-64`($ctx),%x#$T2
+ and \$-512,%rsp
+ vmovdqu `16*1-64`($ctx),%x#$T3
+ vmovdqu `16*2-64`($ctx),%x#$T4
+ vmovdqu `16*3-64`($ctx),%x#$D0
+ vmovdqu `16*4-64`($ctx),%x#$D1
+ vmovdqu `16*5-64`($ctx),%x#$D2
+ lea 0x90(%rsp),%rax # size optimization
+ vmovdqu `16*6-64`($ctx),%x#$D3
+ vpermd $T2,$T0,$T2 # 00003412 -> 14243444
+ vmovdqu `16*7-64`($ctx),%x#$D4
+ vpermd $T3,$T0,$T3
+ vmovdqu `16*8-64`($ctx),%x#$MASK
+ vpermd $T4,$T0,$T4
+ vmovdqa $T2,0x00(%rsp)
+ vpermd $D0,$T0,$D0
+ vmovdqa $T3,0x20-0x90(%rax)
+ vpermd $D1,$T0,$D1
+ vmovdqa $T4,0x40-0x90(%rax)
+ vpermd $D2,$T0,$D2
+ vmovdqa $D0,0x60-0x90(%rax)
+ vpermd $D3,$T0,$D3
+ vmovdqa $D1,0x80-0x90(%rax)
+ vpermd $D4,$T0,$D4
+ vmovdqa $D2,0xa0-0x90(%rax)
+ vpermd $MASK,$T0,$MASK
+ vmovdqa $D3,0xc0-0x90(%rax)
+ vmovdqa $D4,0xe0-0x90(%rax)
+ vmovdqa $MASK,0x100-0x90(%rax)
+ vmovdqa 64(%rcx),$MASK # .Lmask26
+
+ ################################################################
+ # load input
+ vmovdqu 16*0($inp),%x#$T0
+ vmovdqu 16*1($inp),%x#$T1
+ vinserti128 \$1,16*2($inp),$T0,$T0
+ vinserti128 \$1,16*3($inp),$T1,$T1
+ lea 16*4($inp),$inp
+
+ vpsrldq \$6,$T0,$T2 # splat input
+ vpsrldq \$6,$T1,$T3
+ vpunpckhqdq $T1,$T0,$T4 # 4
+ vpunpcklqdq $T3,$T2,$T2 # 2:3
+ vpunpcklqdq $T1,$T0,$T0 # 0:1
+
+ vpsrlq \$30,$T2,$T3
+ vpsrlq \$4,$T2,$T2
+ vpsrlq \$26,$T0,$T1
+ vpsrlq \$40,$T4,$T4 # 4
+ vpand $MASK,$T2,$T2 # 2
+ vpand $MASK,$T0,$T0 # 0
+ vpand $MASK,$T1,$T1 # 1
+ vpand $MASK,$T3,$T3 # 3
+ vpor 32(%rcx),$T4,$T4 # padbit, yes, always
+
+ vpaddq $H2,$T2,$H2 # accumulate input
+ sub \$64,$len
+ jz .Ltail_avx2$suffix
+ jmp .Loop_avx2$suffix
+
+.align 32
+.Loop_avx2$suffix:
+ ################################################################
+ # ((inp[0]*r^4+inp[4])*r^4+inp[ 8])*r^4
+ # ((inp[1]*r^4+inp[5])*r^4+inp[ 9])*r^3
+ # ((inp[2]*r^4+inp[6])*r^4+inp[10])*r^2
+ # ((inp[3]*r^4+inp[7])*r^4+inp[11])*r^1
+ # \________/\__________/
+ ################################################################
+ #vpaddq $H2,$T2,$H2 # accumulate input
+ vpaddq $H0,$T0,$H0
+ vmovdqa `32*0`(%rsp),$T0 # r0^4
+ vpaddq $H1,$T1,$H1
+ vmovdqa `32*1`(%rsp),$T1 # r1^4
+ vpaddq $H3,$T3,$H3
+ vmovdqa `32*3`(%rsp),$T2 # r2^4
+ vpaddq $H4,$T4,$H4
+ vmovdqa `32*6-0x90`(%rax),$T3 # s3^4
+ vmovdqa `32*8-0x90`(%rax),$S4 # s4^4
+
+ # d4 = h4*r0 + h3*r1 + h2*r2 + h1*r3 + h0*r4
+ # d3 = h3*r0 + h2*r1 + h1*r2 + h0*r3 + h4*5*r4
+ # d2 = h2*r0 + h1*r1 + h0*r2 + h4*5*r3 + h3*5*r4
+ # d1 = h1*r0 + h0*r1 + h4*5*r2 + h3*5*r3 + h2*5*r4
+ # d0 = h0*r0 + h4*5*r1 + h3*5*r2 + h2*5*r3 + h1*5*r4
+ #
+ # however, as h2 is "chronologically" first one available pull
+ # corresponding operations up, so it's
+ #
+ # d4 = h2*r2 + h4*r0 + h3*r1 + h1*r3 + h0*r4
+ # d3 = h2*r1 + h3*r0 + h1*r2 + h0*r3 + h4*5*r4
+ # d2 = h2*r0 + h1*r1 + h0*r2 + h4*5*r3 + h3*5*r4
+ # d1 = h2*5*r4 + h1*r0 + h0*r1 + h4*5*r2 + h3*5*r3
+ # d0 = h2*5*r3 + h0*r0 + h4*5*r1 + h3*5*r2 + h1*5*r4
+
+ vpmuludq $H2,$T0,$D2 # d2 = h2*r0
+ vpmuludq $H2,$T1,$D3 # d3 = h2*r1
+ vpmuludq $H2,$T2,$D4 # d4 = h2*r2
+ vpmuludq $H2,$T3,$D0 # d0 = h2*s3
+ vpmuludq $H2,$S4,$D1 # d1 = h2*s4
+
+ vpmuludq $H0,$T1,$T4 # h0*r1
+ vpmuludq $H1,$T1,$H2 # h1*r1, borrow $H2 as temp
+ vpaddq $T4,$D1,$D1 # d1 += h0*r1
+ vpaddq $H2,$D2,$D2 # d2 += h1*r1
+ vpmuludq $H3,$T1,$T4 # h3*r1
+ vpmuludq `32*2`(%rsp),$H4,$H2 # h4*s1
+ vpaddq $T4,$D4,$D4 # d4 += h3*r1
+ vpaddq $H2,$D0,$D0 # d0 += h4*s1
+ vmovdqa `32*4-0x90`(%rax),$T1 # s2
+
+ vpmuludq $H0,$T0,$T4 # h0*r0
+ vpmuludq $H1,$T0,$H2 # h1*r0
+ vpaddq $T4,$D0,$D0 # d0 += h0*r0
+ vpaddq $H2,$D1,$D1 # d1 += h1*r0
+ vpmuludq $H3,$T0,$T4 # h3*r0
+ vpmuludq $H4,$T0,$H2 # h4*r0
+ vmovdqu 16*0($inp),%x#$T0 # load input
+ vpaddq $T4,$D3,$D3 # d3 += h3*r0
+ vpaddq $H2,$D4,$D4 # d4 += h4*r0
+ vinserti128 \$1,16*2($inp),$T0,$T0
+
+ vpmuludq $H3,$T1,$T4 # h3*s2
+ vpmuludq $H4,$T1,$H2 # h4*s2
+ vmovdqu 16*1($inp),%x#$T1
+ vpaddq $T4,$D0,$D0 # d0 += h3*s2
+ vpaddq $H2,$D1,$D1 # d1 += h4*s2
+ vmovdqa `32*5-0x90`(%rax),$H2 # r3
+ vpmuludq $H1,$T2,$T4 # h1*r2
+ vpmuludq $H0,$T2,$T2 # h0*r2
+ vpaddq $T4,$D3,$D3 # d3 += h1*r2
+ vpaddq $T2,$D2,$D2 # d2 += h0*r2
+ vinserti128 \$1,16*3($inp),$T1,$T1
+ lea 16*4($inp),$inp
+
+ vpmuludq $H1,$H2,$T4 # h1*r3
+ vpmuludq $H0,$H2,$H2 # h0*r3
+ vpsrldq \$6,$T0,$T2 # splat input
+ vpaddq $T4,$D4,$D4 # d4 += h1*r3
+ vpaddq $H2,$D3,$D3 # d3 += h0*r3
+ vpmuludq $H3,$T3,$T4 # h3*s3
+ vpmuludq $H4,$T3,$H2 # h4*s3
+ vpsrldq \$6,$T1,$T3
+ vpaddq $T4,$D1,$D1 # d1 += h3*s3
+ vpaddq $H2,$D2,$D2 # d2 += h4*s3
+ vpunpckhqdq $T1,$T0,$T4 # 4
+
+ vpmuludq $H3,$S4,$H3 # h3*s4
+ vpmuludq $H4,$S4,$H4 # h4*s4
+ vpunpcklqdq $T1,$T0,$T0 # 0:1
+ vpaddq $H3,$D2,$H2 # h2 = d2 + h3*r4
+ vpaddq $H4,$D3,$H3 # h3 = d3 + h4*r4
+ vpunpcklqdq $T3,$T2,$T3 # 2:3
+ vpmuludq `32*7-0x90`(%rax),$H0,$H4 # h0*r4
+ vpmuludq $H1,$S4,$H0 # h1*s4
+ vmovdqa 64(%rcx),$MASK # .Lmask26
+ vpaddq $H4,$D4,$H4 # h4 = d4 + h0*r4
+ vpaddq $H0,$D0,$H0 # h0 = d0 + h1*s4
+
+ ################################################################
+ # lazy reduction (interleaved with tail of input splat)
+
+ vpsrlq \$26,$H3,$D3
+ vpand $MASK,$H3,$H3
+ vpaddq $D3,$H4,$H4 # h3 -> h4
+
+ vpsrlq \$26,$H0,$D0
+ vpand $MASK,$H0,$H0
+ vpaddq $D0,$D1,$H1 # h0 -> h1
+
+ vpsrlq \$26,$H4,$D4
+ vpand $MASK,$H4,$H4
+
+ vpsrlq \$4,$T3,$T2
+
+ vpsrlq \$26,$H1,$D1
+ vpand $MASK,$H1,$H1
+ vpaddq $D1,$H2,$H2 # h1 -> h2
+
+ vpaddq $D4,$H0,$H0
+ vpsllq \$2,$D4,$D4
+ vpaddq $D4,$H0,$H0 # h4 -> h0
+
+ vpand $MASK,$T2,$T2 # 2
+ vpsrlq \$26,$T0,$T1
+
+ vpsrlq \$26,$H2,$D2
+ vpand $MASK,$H2,$H2
+ vpaddq $D2,$H3,$H3 # h2 -> h3
+
+ vpaddq $T2,$H2,$H2 # modulo-scheduled
+ vpsrlq \$30,$T3,$T3
+
+ vpsrlq \$26,$H0,$D0
+ vpand $MASK,$H0,$H0
+ vpaddq $D0,$H1,$H1 # h0 -> h1
+
+ vpsrlq \$40,$T4,$T4 # 4
+
+ vpsrlq \$26,$H3,$D3
+ vpand $MASK,$H3,$H3
+ vpaddq $D3,$H4,$H4 # h3 -> h4
+
+ vpand $MASK,$T0,$T0 # 0
+ vpand $MASK,$T1,$T1 # 1
+ vpand $MASK,$T3,$T3 # 3
+ vpor 32(%rcx),$T4,$T4 # padbit, yes, always
+
+ sub \$64,$len
+ jnz .Loop_avx2$suffix
+
+ .byte 0x66,0x90
+.Ltail_avx2$suffix:
+ ################################################################
+ # while above multiplications were by r^4 in all lanes, in last
+ # iteration we multiply least significant lane by r^4 and most
+ # significant one by r, so copy of above except that references
+ # to the precomputed table are displaced by 4...
+
+ #vpaddq $H2,$T2,$H2 # accumulate input
+ vpaddq $H0,$T0,$H0
+ vmovdqu `32*0+4`(%rsp),$T0 # r0^4
+ vpaddq $H1,$T1,$H1
+ vmovdqu `32*1+4`(%rsp),$T1 # r1^4
+ vpaddq $H3,$T3,$H3
+ vmovdqu `32*3+4`(%rsp),$T2 # r2^4
+ vpaddq $H4,$T4,$H4
+ vmovdqu `32*6+4-0x90`(%rax),$T3 # s3^4
+ vmovdqu `32*8+4-0x90`(%rax),$S4 # s4^4
+
+ vpmuludq $H2,$T0,$D2 # d2 = h2*r0
+ vpmuludq $H2,$T1,$D3 # d3 = h2*r1
+ vpmuludq $H2,$T2,$D4 # d4 = h2*r2
+ vpmuludq $H2,$T3,$D0 # d0 = h2*s3
+ vpmuludq $H2,$S4,$D1 # d1 = h2*s4
+
+ vpmuludq $H0,$T1,$T4 # h0*r1
+ vpmuludq $H1,$T1,$H2 # h1*r1
+ vpaddq $T4,$D1,$D1 # d1 += h0*r1
+ vpaddq $H2,$D2,$D2 # d2 += h1*r1
+ vpmuludq $H3,$T1,$T4 # h3*r1
+ vpmuludq `32*2+4`(%rsp),$H4,$H2 # h4*s1
+ vpaddq $T4,$D4,$D4 # d4 += h3*r1
+ vpaddq $H2,$D0,$D0 # d0 += h4*s1
+
+ vpmuludq $H0,$T0,$T4 # h0*r0
+ vpmuludq $H1,$T0,$H2 # h1*r0
+ vpaddq $T4,$D0,$D0 # d0 += h0*r0
+ vmovdqu `32*4+4-0x90`(%rax),$T1 # s2
+ vpaddq $H2,$D1,$D1 # d1 += h1*r0
+ vpmuludq $H3,$T0,$T4 # h3*r0
+ vpmuludq $H4,$T0,$H2 # h4*r0
+ vpaddq $T4,$D3,$D3 # d3 += h3*r0
+ vpaddq $H2,$D4,$D4 # d4 += h4*r0
+
+ vpmuludq $H3,$T1,$T4 # h3*s2
+ vpmuludq $H4,$T1,$H2 # h4*s2
+ vpaddq $T4,$D0,$D0 # d0 += h3*s2
+ vpaddq $H2,$D1,$D1 # d1 += h4*s2
+ vmovdqu `32*5+4-0x90`(%rax),$H2 # r3
+ vpmuludq $H1,$T2,$T4 # h1*r2
+ vpmuludq $H0,$T2,$T2 # h0*r2
+ vpaddq $T4,$D3,$D3 # d3 += h1*r2
+ vpaddq $T2,$D2,$D2 # d2 += h0*r2
+
+ vpmuludq $H1,$H2,$T4 # h1*r3
+ vpmuludq $H0,$H2,$H2 # h0*r3
+ vpaddq $T4,$D4,$D4 # d4 += h1*r3
+ vpaddq $H2,$D3,$D3 # d3 += h0*r3
+ vpmuludq $H3,$T3,$T4 # h3*s3
+ vpmuludq $H4,$T3,$H2 # h4*s3
+ vpaddq $T4,$D1,$D1 # d1 += h3*s3
+ vpaddq $H2,$D2,$D2 # d2 += h4*s3
+
+ vpmuludq $H3,$S4,$H3 # h3*s4
+ vpmuludq $H4,$S4,$H4 # h4*s4
+ vpaddq $H3,$D2,$H2 # h2 = d2 + h3*r4
+ vpaddq $H4,$D3,$H3 # h3 = d3 + h4*r4
+ vpmuludq `32*7+4-0x90`(%rax),$H0,$H4 # h0*r4
+ vpmuludq $H1,$S4,$H0 # h1*s4
+ vmovdqa 64(%rcx),$MASK # .Lmask26
+ vpaddq $H4,$D4,$H4 # h4 = d4 + h0*r4
+ vpaddq $H0,$D0,$H0 # h0 = d0 + h1*s4
+
+ ################################################################
+ # horizontal addition
+
+ vpsrldq \$8,$D1,$T1
+ vpsrldq \$8,$H2,$T2
+ vpsrldq \$8,$H3,$T3
+ vpsrldq \$8,$H4,$T4
+ vpsrldq \$8,$H0,$T0
+ vpaddq $T1,$D1,$D1
+ vpaddq $T2,$H2,$H2
+ vpaddq $T3,$H3,$H3
+ vpaddq $T4,$H4,$H4
+ vpaddq $T0,$H0,$H0
+
+ vpermq \$0x2,$H3,$T3
+ vpermq \$0x2,$H4,$T4
+ vpermq \$0x2,$H0,$T0
+ vpermq \$0x2,$D1,$T1
+ vpermq \$0x2,$H2,$T2
+ vpaddq $T3,$H3,$H3
+ vpaddq $T4,$H4,$H4
+ vpaddq $T0,$H0,$H0
+ vpaddq $T1,$D1,$D1
+ vpaddq $T2,$H2,$H2
+
+ ################################################################
+ # lazy reduction
+
+ vpsrlq \$26,$H3,$D3
+ vpand $MASK,$H3,$H3
+ vpaddq $D3,$H4,$H4 # h3 -> h4
+
+ vpsrlq \$26,$H0,$D0
+ vpand $MASK,$H0,$H0
+ vpaddq $D0,$D1,$H1 # h0 -> h1
+
+ vpsrlq \$26,$H4,$D4
+ vpand $MASK,$H4,$H4
+
+ vpsrlq \$26,$H1,$D1
+ vpand $MASK,$H1,$H1
+ vpaddq $D1,$H2,$H2 # h1 -> h2
+
+ vpaddq $D4,$H0,$H0
+ vpsllq \$2,$D4,$D4
+ vpaddq $D4,$H0,$H0 # h4 -> h0
+
+ vpsrlq \$26,$H2,$D2
+ vpand $MASK,$H2,$H2
+ vpaddq $D2,$H3,$H3 # h2 -> h3
+
+ vpsrlq \$26,$H0,$D0
+ vpand $MASK,$H0,$H0
+ vpaddq $D0,$H1,$H1 # h0 -> h1
+
+ vpsrlq \$26,$H3,$D3
+ vpand $MASK,$H3,$H3
+ vpaddq $D3,$H4,$H4 # h3 -> h4
+
+ vmovd %x#$H0,`4*0-48-64`($ctx)# save partially reduced
+ vmovd %x#$H1,`4*1-48-64`($ctx)
+ vmovd %x#$H2,`4*2-48-64`($ctx)
+ vmovd %x#$H3,`4*3-48-64`($ctx)
+ vmovd %x#$H4,`4*4-48-64`($ctx)
+___
+$code.=<<___ if ($win64);
+ vmovdqa -0xb0(%r10),%xmm6
+ vmovdqa -0xa0(%r10),%xmm7
+ vmovdqa -0x90(%r10),%xmm8
+ vmovdqa -0x80(%r10),%xmm9
+ vmovdqa -0x70(%r10),%xmm10
+ vmovdqa -0x60(%r10),%xmm11
+ vmovdqa -0x50(%r10),%xmm12
+ vmovdqa -0x40(%r10),%xmm13
+ vmovdqa -0x30(%r10),%xmm14
+ vmovdqa -0x20(%r10),%xmm15
+ lea -8(%r10),%rsp
+.Ldo_avx2_epilogue$suffix:
+___
+$code.=<<___ if (!$win64);
+ lea -8(%r10),%rsp
+.cfi_def_cfa_register %rsp
+___
+$code.=<<___;
+ vzeroupper
+ ret
+.cfi_endproc
+___
+if($avx > 2 && $avx512) {
+my ($R0,$R1,$R2,$R3,$R4, $S1,$S2,$S3,$S4) = map("%zmm$_",(16..24));
+my ($M0,$M1,$M2,$M3,$M4) = map("%zmm$_",(25..29));
+my $PADBIT="%zmm30";
+
+map(s/%y/%z/,($T4,$T0,$T1,$T2,$T3)); # switch to %zmm domain
+map(s/%y/%z/,($D0,$D1,$D2,$D3,$D4));
+map(s/%y/%z/,($H0,$H1,$H2,$H3,$H4));
+map(s/%y/%z/,($MASK));
+
+$code.=<<___;
+.cfi_startproc
+.Lblocks_avx512:
+ mov \$15,%eax
+ kmovw %eax,%k2
+___
+$code.=<<___ if (!$win64);
+ lea 8(%rsp),%r10
+.cfi_def_cfa_register %r10
+ sub \$0x128,%rsp
+___
+$code.=<<___ if ($win64);
+ lea 8(%rsp),%r10
+ sub \$0x1c8,%rsp
+ vmovdqa %xmm6,-0xb0(%r10)
+ vmovdqa %xmm7,-0xa0(%r10)
+ vmovdqa %xmm8,-0x90(%r10)
+ vmovdqa %xmm9,-0x80(%r10)
+ vmovdqa %xmm10,-0x70(%r10)
+ vmovdqa %xmm11,-0x60(%r10)
+ vmovdqa %xmm12,-0x50(%r10)
+ vmovdqa %xmm13,-0x40(%r10)
+ vmovdqa %xmm14,-0x30(%r10)
+ vmovdqa %xmm15,-0x20(%r10)
+.Ldo_avx512_body:
+___
+$code.=<<___;
+ lea .Lconst(%rip),%rcx
+ lea 48+64($ctx),$ctx # size optimization
+ vmovdqa 96(%rcx),%y#$T2 # .Lpermd_avx2
+
+ # expand pre-calculated table
+ vmovdqu `16*0-64`($ctx),%x#$D0 # will become expanded ${R0}
+ and \$-512,%rsp
+ vmovdqu `16*1-64`($ctx),%x#$D1 # will become ... ${R1}
+ mov \$0x20,%rax
+ vmovdqu `16*2-64`($ctx),%x#$T0 # ... ${S1}
+ vmovdqu `16*3-64`($ctx),%x#$D2 # ... ${R2}
+ vmovdqu `16*4-64`($ctx),%x#$T1 # ... ${S2}
+ vmovdqu `16*5-64`($ctx),%x#$D3 # ... ${R3}
+ vmovdqu `16*6-64`($ctx),%x#$T3 # ... ${S3}
+ vmovdqu `16*7-64`($ctx),%x#$D4 # ... ${R4}
+ vmovdqu `16*8-64`($ctx),%x#$T4 # ... ${S4}
+ vpermd $D0,$T2,$R0 # 00003412 -> 14243444
+ vpbroadcastq 64(%rcx),$MASK # .Lmask26
+ vpermd $D1,$T2,$R1
+ vpermd $T0,$T2,$S1
+ vpermd $D2,$T2,$R2
+ vmovdqa64 $R0,0x00(%rsp){%k2} # save in case $len%128 != 0
+ vpsrlq \$32,$R0,$T0 # 14243444 -> 01020304
+ vpermd $T1,$T2,$S2
+ vmovdqu64 $R1,0x00(%rsp,%rax){%k2}
+ vpsrlq \$32,$R1,$T1
+ vpermd $D3,$T2,$R3
+ vmovdqa64 $S1,0x40(%rsp){%k2}
+ vpermd $T3,$T2,$S3
+ vpermd $D4,$T2,$R4
+ vmovdqu64 $R2,0x40(%rsp,%rax){%k2}
+ vpermd $T4,$T2,$S4
+ vmovdqa64 $S2,0x80(%rsp){%k2}
+ vmovdqu64 $R3,0x80(%rsp,%rax){%k2}
+ vmovdqa64 $S3,0xc0(%rsp){%k2}
+ vmovdqu64 $R4,0xc0(%rsp,%rax){%k2}
+ vmovdqa64 $S4,0x100(%rsp){%k2}
+
+ ################################################################
+ # calculate 5th through 8th powers of the key
+ #
+ # d0 = r0'*r0 + r1'*5*r4 + r2'*5*r3 + r3'*5*r2 + r4'*5*r1
+ # d1 = r0'*r1 + r1'*r0 + r2'*5*r4 + r3'*5*r3 + r4'*5*r2
+ # d2 = r0'*r2 + r1'*r1 + r2'*r0 + r3'*5*r4 + r4'*5*r3
+ # d3 = r0'*r3 + r1'*r2 + r2'*r1 + r3'*r0 + r4'*5*r4
+ # d4 = r0'*r4 + r1'*r3 + r2'*r2 + r3'*r1 + r4'*r0
+
+ vpmuludq $T0,$R0,$D0 # d0 = r0'*r0
+ vpmuludq $T0,$R1,$D1 # d1 = r0'*r1
+ vpmuludq $T0,$R2,$D2 # d2 = r0'*r2
+ vpmuludq $T0,$R3,$D3 # d3 = r0'*r3
+ vpmuludq $T0,$R4,$D4 # d4 = r0'*r4
+ vpsrlq \$32,$R2,$T2
+
+ vpmuludq $T1,$S4,$M0
+ vpmuludq $T1,$R0,$M1
+ vpmuludq $T1,$R1,$M2
+ vpmuludq $T1,$R2,$M3
+ vpmuludq $T1,$R3,$M4
+ vpsrlq \$32,$R3,$T3
+ vpaddq $M0,$D0,$D0 # d0 += r1'*5*r4
+ vpaddq $M1,$D1,$D1 # d1 += r1'*r0
+ vpaddq $M2,$D2,$D2 # d2 += r1'*r1
+ vpaddq $M3,$D3,$D3 # d3 += r1'*r2
+ vpaddq $M4,$D4,$D4 # d4 += r1'*r3
+
+ vpmuludq $T2,$S3,$M0
+ vpmuludq $T2,$S4,$M1
+ vpmuludq $T2,$R1,$M3
+ vpmuludq $T2,$R2,$M4
+ vpmuludq $T2,$R0,$M2
+ vpsrlq \$32,$R4,$T4
+ vpaddq $M0,$D0,$D0 # d0 += r2'*5*r3
+ vpaddq $M1,$D1,$D1 # d1 += r2'*5*r4
+ vpaddq $M3,$D3,$D3 # d3 += r2'*r1
+ vpaddq $M4,$D4,$D4 # d4 += r2'*r2
+ vpaddq $M2,$D2,$D2 # d2 += r2'*r0
+
+ vpmuludq $T3,$S2,$M0
+ vpmuludq $T3,$R0,$M3
+ vpmuludq $T3,$R1,$M4
+ vpmuludq $T3,$S3,$M1
+ vpmuludq $T3,$S4,$M2
+ vpaddq $M0,$D0,$D0 # d0 += r3'*5*r2
+ vpaddq $M3,$D3,$D3 # d3 += r3'*r0
+ vpaddq $M4,$D4,$D4 # d4 += r3'*r1
+ vpaddq $M1,$D1,$D1 # d1 += r3'*5*r3
+ vpaddq $M2,$D2,$D2 # d2 += r3'*5*r4
+
+ vpmuludq $T4,$S4,$M3
+ vpmuludq $T4,$R0,$M4
+ vpmuludq $T4,$S1,$M0
+ vpmuludq $T4,$S2,$M1
+ vpmuludq $T4,$S3,$M2
+ vpaddq $M3,$D3,$D3 # d3 += r2'*5*r4
+ vpaddq $M4,$D4,$D4 # d4 += r2'*r0
+ vpaddq $M0,$D0,$D0 # d0 += r2'*5*r1
+ vpaddq $M1,$D1,$D1 # d1 += r2'*5*r2
+ vpaddq $M2,$D2,$D2 # d2 += r2'*5*r3
+
+ ################################################################
+ # load input
+ vmovdqu64 16*0($inp),%z#$T3
+ vmovdqu64 16*4($inp),%z#$T4
+ lea 16*8($inp),$inp
+
+ ################################################################
+ # lazy reduction
+
+ vpsrlq \$26,$D3,$M3
+ vpandq $MASK,$D3,$D3
+ vpaddq $M3,$D4,$D4 # d3 -> d4
+
+ vpsrlq \$26,$D0,$M0
+ vpandq $MASK,$D0,$D0
+ vpaddq $M0,$D1,$D1 # d0 -> d1
+
+ vpsrlq \$26,$D4,$M4
+ vpandq $MASK,$D4,$D4
+
+ vpsrlq \$26,$D1,$M1
+ vpandq $MASK,$D1,$D1
+ vpaddq $M1,$D2,$D2 # d1 -> d2
+
+ vpaddq $M4,$D0,$D0
+ vpsllq \$2,$M4,$M4
+ vpaddq $M4,$D0,$D0 # d4 -> d0
+
+ vpsrlq \$26,$D2,$M2
+ vpandq $MASK,$D2,$D2
+ vpaddq $M2,$D3,$D3 # d2 -> d3
+
+ vpsrlq \$26,$D0,$M0
+ vpandq $MASK,$D0,$D0
+ vpaddq $M0,$D1,$D1 # d0 -> d1
+
+ vpsrlq \$26,$D3,$M3
+ vpandq $MASK,$D3,$D3
+ vpaddq $M3,$D4,$D4 # d3 -> d4
+
+ ################################################################
+ # at this point we have 14243444 in $R0-$S4 and 05060708 in
+ # $D0-$D4, ...
+
+ vpunpcklqdq $T4,$T3,$T0 # transpose input
+ vpunpckhqdq $T4,$T3,$T4
+
+ # ... since input 64-bit lanes are ordered as 73625140, we could
+ # "vperm" it to 76543210 (here and in each loop iteration), *or*
+ # we could just flow along, hence the goal for $R0-$S4 is
+ # 1858286838784888 ...
+
+ vmovdqa32 128(%rcx),$M0 # .Lpermd_avx512:
+ mov \$0x7777,%eax
+ kmovw %eax,%k1
+
+ vpermd $R0,$M0,$R0 # 14243444 -> 1---2---3---4---
+ vpermd $R1,$M0,$R1
+ vpermd $R2,$M0,$R2
+ vpermd $R3,$M0,$R3
+ vpermd $R4,$M0,$R4
+
+ vpermd $D0,$M0,${R0}{%k1} # 05060708 -> 1858286838784888
+ vpermd $D1,$M0,${R1}{%k1}
+ vpermd $D2,$M0,${R2}{%k1}
+ vpermd $D3,$M0,${R3}{%k1}
+ vpermd $D4,$M0,${R4}{%k1}
+
+ vpslld \$2,$R1,$S1 # *5
+ vpslld \$2,$R2,$S2
+ vpslld \$2,$R3,$S3
+ vpslld \$2,$R4,$S4
+ vpaddd $R1,$S1,$S1
+ vpaddd $R2,$S2,$S2
+ vpaddd $R3,$S3,$S3
+ vpaddd $R4,$S4,$S4
+
+ vpbroadcastq 32(%rcx),$PADBIT # .L129
+
+ vpsrlq \$52,$T0,$T2 # splat input
+ vpsllq \$12,$T4,$T3
+ vporq $T3,$T2,$T2
+ vpsrlq \$26,$T0,$T1
+ vpsrlq \$14,$T4,$T3
+ vpsrlq \$40,$T4,$T4 # 4
+ vpandq $MASK,$T2,$T2 # 2
+ vpandq $MASK,$T0,$T0 # 0
+ #vpandq $MASK,$T1,$T1 # 1
+ #vpandq $MASK,$T3,$T3 # 3
+ #vporq $PADBIT,$T4,$T4 # padbit, yes, always
+
+ vpaddq $H2,$T2,$H2 # accumulate input
+ sub \$192,$len
+ jbe .Ltail_avx512
+ jmp .Loop_avx512
+
+.align 32
+.Loop_avx512:
+ ################################################################
+ # ((inp[0]*r^8+inp[ 8])*r^8+inp[16])*r^8
+ # ((inp[1]*r^8+inp[ 9])*r^8+inp[17])*r^7
+ # ((inp[2]*r^8+inp[10])*r^8+inp[18])*r^6
+ # ((inp[3]*r^8+inp[11])*r^8+inp[19])*r^5
+ # ((inp[4]*r^8+inp[12])*r^8+inp[20])*r^4
+ # ((inp[5]*r^8+inp[13])*r^8+inp[21])*r^3
+ # ((inp[6]*r^8+inp[14])*r^8+inp[22])*r^2
+ # ((inp[7]*r^8+inp[15])*r^8+inp[23])*r^1
+ # \________/\___________/
+ ################################################################
+ #vpaddq $H2,$T2,$H2 # accumulate input
+
+ # d4 = h4*r0 + h3*r1 + h2*r2 + h1*r3 + h0*r4
+ # d3 = h3*r0 + h2*r1 + h1*r2 + h0*r3 + h4*5*r4
+ # d2 = h2*r0 + h1*r1 + h0*r2 + h4*5*r3 + h3*5*r4
+ # d1 = h1*r0 + h0*r1 + h4*5*r2 + h3*5*r3 + h2*5*r4
+ # d0 = h0*r0 + h4*5*r1 + h3*5*r2 + h2*5*r3 + h1*5*r4
+ #
+ # however, as h2 is "chronologically" first one available pull
+ # corresponding operations up, so it's
+ #
+ # d3 = h2*r1 + h0*r3 + h1*r2 + h3*r0 + h4*5*r4
+ # d4 = h2*r2 + h0*r4 + h1*r3 + h3*r1 + h4*r0
+ # d0 = h2*5*r3 + h0*r0 + h1*5*r4 + h3*5*r2 + h4*5*r1
+ # d1 = h2*5*r4 + h0*r1 + h1*r0 + h3*5*r3 + h4*5*r2
+ # d2 = h2*r0 + h0*r2 + h1*r1 + h3*5*r4 + h4*5*r3
+
+ vpmuludq $H2,$R1,$D3 # d3 = h2*r1
+ vpaddq $H0,$T0,$H0
+ vpmuludq $H2,$R2,$D4 # d4 = h2*r2
+ vpandq $MASK,$T1,$T1 # 1
+ vpmuludq $H2,$S3,$D0 # d0 = h2*s3
+ vpandq $MASK,$T3,$T3 # 3
+ vpmuludq $H2,$S4,$D1 # d1 = h2*s4
+ vporq $PADBIT,$T4,$T4 # padbit, yes, always
+ vpmuludq $H2,$R0,$D2 # d2 = h2*r0
+ vpaddq $H1,$T1,$H1 # accumulate input
+ vpaddq $H3,$T3,$H3
+ vpaddq $H4,$T4,$H4
+
+ vmovdqu64 16*0($inp),$T3 # load input
+ vmovdqu64 16*4($inp),$T4
+ lea 16*8($inp),$inp
+ vpmuludq $H0,$R3,$M3
+ vpmuludq $H0,$R4,$M4
+ vpmuludq $H0,$R0,$M0
+ vpmuludq $H0,$R1,$M1
+ vpaddq $M3,$D3,$D3 # d3 += h0*r3
+ vpaddq $M4,$D4,$D4 # d4 += h0*r4
+ vpaddq $M0,$D0,$D0 # d0 += h0*r0
+ vpaddq $M1,$D1,$D1 # d1 += h0*r1
+
+ vpmuludq $H1,$R2,$M3
+ vpmuludq $H1,$R3,$M4
+ vpmuludq $H1,$S4,$M0
+ vpmuludq $H0,$R2,$M2
+ vpaddq $M3,$D3,$D3 # d3 += h1*r2
+ vpaddq $M4,$D4,$D4 # d4 += h1*r3
+ vpaddq $M0,$D0,$D0 # d0 += h1*s4
+ vpaddq $M2,$D2,$D2 # d2 += h0*r2
+
+ vpunpcklqdq $T4,$T3,$T0 # transpose input
+ vpunpckhqdq $T4,$T3,$T4
+
+ vpmuludq $H3,$R0,$M3
+ vpmuludq $H3,$R1,$M4
+ vpmuludq $H1,$R0,$M1
+ vpmuludq $H1,$R1,$M2
+ vpaddq $M3,$D3,$D3 # d3 += h3*r0
+ vpaddq $M4,$D4,$D4 # d4 += h3*r1
+ vpaddq $M1,$D1,$D1 # d1 += h1*r0
+ vpaddq $M2,$D2,$D2 # d2 += h1*r1
+
+ vpmuludq $H4,$S4,$M3
+ vpmuludq $H4,$R0,$M4
+ vpmuludq $H3,$S2,$M0
+ vpmuludq $H3,$S3,$M1
+ vpaddq $M3,$D3,$D3 # d3 += h4*s4
+ vpmuludq $H3,$S4,$M2
+ vpaddq $M4,$D4,$D4 # d4 += h4*r0
+ vpaddq $M0,$D0,$D0 # d0 += h3*s2
+ vpaddq $M1,$D1,$D1 # d1 += h3*s3
+ vpaddq $M2,$D2,$D2 # d2 += h3*s4
+
+ vpmuludq $H4,$S1,$M0
+ vpmuludq $H4,$S2,$M1
+ vpmuludq $H4,$S3,$M2
+ vpaddq $M0,$D0,$H0 # h0 = d0 + h4*s1
+ vpaddq $M1,$D1,$H1 # h1 = d2 + h4*s2
+ vpaddq $M2,$D2,$H2 # h2 = d3 + h4*s3
+
+ ################################################################
+ # lazy reduction (interleaved with input splat)
+
+ vpsrlq \$52,$T0,$T2 # splat input
+ vpsllq \$12,$T4,$T3
+
+ vpsrlq \$26,$D3,$H3
+ vpandq $MASK,$D3,$D3
+ vpaddq $H3,$D4,$H4 # h3 -> h4
+
+ vporq $T3,$T2,$T2
+
+ vpsrlq \$26,$H0,$D0
+ vpandq $MASK,$H0,$H0
+ vpaddq $D0,$H1,$H1 # h0 -> h1
+
+ vpandq $MASK,$T2,$T2 # 2
+
+ vpsrlq \$26,$H4,$D4
+ vpandq $MASK,$H4,$H4
+
+ vpsrlq \$26,$H1,$D1
+ vpandq $MASK,$H1,$H1
+ vpaddq $D1,$H2,$H2 # h1 -> h2
+
+ vpaddq $D4,$H0,$H0
+ vpsllq \$2,$D4,$D4
+ vpaddq $D4,$H0,$H0 # h4 -> h0
+
+ vpaddq $T2,$H2,$H2 # modulo-scheduled
+ vpsrlq \$26,$T0,$T1
+
+ vpsrlq \$26,$H2,$D2
+ vpandq $MASK,$H2,$H2
+ vpaddq $D2,$D3,$H3 # h2 -> h3
+
+ vpsrlq \$14,$T4,$T3
+
+ vpsrlq \$26,$H0,$D0
+ vpandq $MASK,$H0,$H0
+ vpaddq $D0,$H1,$H1 # h0 -> h1
+
+ vpsrlq \$40,$T4,$T4 # 4
+
+ vpsrlq \$26,$H3,$D3
+ vpandq $MASK,$H3,$H3
+ vpaddq $D3,$H4,$H4 # h3 -> h4
+
+ vpandq $MASK,$T0,$T0 # 0
+ #vpandq $MASK,$T1,$T1 # 1
+ #vpandq $MASK,$T3,$T3 # 3
+ #vporq $PADBIT,$T4,$T4 # padbit, yes, always
+
+ sub \$128,$len
+ ja .Loop_avx512
+
+.Ltail_avx512:
+ ################################################################
+ # while above multiplications were by r^8 in all lanes, in last
+ # iteration we multiply least significant lane by r^8 and most
+ # significant one by r, that's why table gets shifted...
+
+ vpsrlq \$32,$R0,$R0 # 0105020603070408
+ vpsrlq \$32,$R1,$R1
+ vpsrlq \$32,$R2,$R2
+ vpsrlq \$32,$S3,$S3
+ vpsrlq \$32,$S4,$S4
+ vpsrlq \$32,$R3,$R3
+ vpsrlq \$32,$R4,$R4
+ vpsrlq \$32,$S1,$S1
+ vpsrlq \$32,$S2,$S2
+
+ ################################################################
+ # load either next or last 64 byte of input
+ lea ($inp,$len),$inp
+
+ #vpaddq $H2,$T2,$H2 # accumulate input
+ vpaddq $H0,$T0,$H0
+
+ vpmuludq $H2,$R1,$D3 # d3 = h2*r1
+ vpmuludq $H2,$R2,$D4 # d4 = h2*r2
+ vpmuludq $H2,$S3,$D0 # d0 = h2*s3
+ vpandq $MASK,$T1,$T1 # 1
+ vpmuludq $H2,$S4,$D1 # d1 = h2*s4
+ vpandq $MASK,$T3,$T3 # 3
+ vpmuludq $H2,$R0,$D2 # d2 = h2*r0
+ vporq $PADBIT,$T4,$T4 # padbit, yes, always
+ vpaddq $H1,$T1,$H1 # accumulate input
+ vpaddq $H3,$T3,$H3
+ vpaddq $H4,$T4,$H4
+
+ vmovdqu 16*0($inp),%x#$T0
+ vpmuludq $H0,$R3,$M3
+ vpmuludq $H0,$R4,$M4
+ vpmuludq $H0,$R0,$M0
+ vpmuludq $H0,$R1,$M1
+ vpaddq $M3,$D3,$D3 # d3 += h0*r3
+ vpaddq $M4,$D4,$D4 # d4 += h0*r4
+ vpaddq $M0,$D0,$D0 # d0 += h0*r0
+ vpaddq $M1,$D1,$D1 # d1 += h0*r1
+
+ vmovdqu 16*1($inp),%x#$T1
+ vpmuludq $H1,$R2,$M3
+ vpmuludq $H1,$R3,$M4
+ vpmuludq $H1,$S4,$M0
+ vpmuludq $H0,$R2,$M2
+ vpaddq $M3,$D3,$D3 # d3 += h1*r2
+ vpaddq $M4,$D4,$D4 # d4 += h1*r3
+ vpaddq $M0,$D0,$D0 # d0 += h1*s4
+ vpaddq $M2,$D2,$D2 # d2 += h0*r2
+
+ vinserti128 \$1,16*2($inp),%y#$T0,%y#$T0
+ vpmuludq $H3,$R0,$M3
+ vpmuludq $H3,$R1,$M4
+ vpmuludq $H1,$R0,$M1
+ vpmuludq $H1,$R1,$M2
+ vpaddq $M3,$D3,$D3 # d3 += h3*r0
+ vpaddq $M4,$D4,$D4 # d4 += h3*r1
+ vpaddq $M1,$D1,$D1 # d1 += h1*r0
+ vpaddq $M2,$D2,$D2 # d2 += h1*r1
+
+ vinserti128 \$1,16*3($inp),%y#$T1,%y#$T1
+ vpmuludq $H4,$S4,$M3
+ vpmuludq $H4,$R0,$M4
+ vpmuludq $H3,$S2,$M0
+ vpmuludq $H3,$S3,$M1
+ vpmuludq $H3,$S4,$M2
+ vpaddq $M3,$D3,$H3 # h3 = d3 + h4*s4
+ vpaddq $M4,$D4,$D4 # d4 += h4*r0
+ vpaddq $M0,$D0,$D0 # d0 += h3*s2
+ vpaddq $M1,$D1,$D1 # d1 += h3*s3
+ vpaddq $M2,$D2,$D2 # d2 += h3*s4
+
+ vpmuludq $H4,$S1,$M0
+ vpmuludq $H4,$S2,$M1
+ vpmuludq $H4,$S3,$M2
+ vpaddq $M0,$D0,$H0 # h0 = d0 + h4*s1
+ vpaddq $M1,$D1,$H1 # h1 = d2 + h4*s2
+ vpaddq $M2,$D2,$H2 # h2 = d3 + h4*s3
+
+ ################################################################
+ # horizontal addition
+
+ mov \$1,%eax
+ vpermq \$0xb1,$H3,$D3
+ vpermq \$0xb1,$D4,$H4
+ vpermq \$0xb1,$H0,$D0
+ vpermq \$0xb1,$H1,$D1
+ vpermq \$0xb1,$H2,$D2
+ vpaddq $D3,$H3,$H3
+ vpaddq $D4,$H4,$H4
+ vpaddq $D0,$H0,$H0
+ vpaddq $D1,$H1,$H1
+ vpaddq $D2,$H2,$H2
+
+ kmovw %eax,%k3
+ vpermq \$0x2,$H3,$D3
+ vpermq \$0x2,$H4,$D4
+ vpermq \$0x2,$H0,$D0
+ vpermq \$0x2,$H1,$D1
+ vpermq \$0x2,$H2,$D2
+ vpaddq $D3,$H3,$H3
+ vpaddq $D4,$H4,$H4
+ vpaddq $D0,$H0,$H0
+ vpaddq $D1,$H1,$H1
+ vpaddq $D2,$H2,$H2
+
+ vextracti64x4 \$0x1,$H3,%y#$D3
+ vextracti64x4 \$0x1,$H4,%y#$D4
+ vextracti64x4 \$0x1,$H0,%y#$D0
+ vextracti64x4 \$0x1,$H1,%y#$D1
+ vextracti64x4 \$0x1,$H2,%y#$D2
+ vpaddq $D3,$H3,${H3}{%k3}{z} # keep single qword in case
+ vpaddq $D4,$H4,${H4}{%k3}{z} # it's passed to .Ltail_avx2
+ vpaddq $D0,$H0,${H0}{%k3}{z}
+ vpaddq $D1,$H1,${H1}{%k3}{z}
+ vpaddq $D2,$H2,${H2}{%k3}{z}
+___
+map(s/%z/%y/,($T0,$T1,$T2,$T3,$T4, $PADBIT));
+map(s/%z/%y/,($H0,$H1,$H2,$H3,$H4, $D0,$D1,$D2,$D3,$D4, $MASK));
+$code.=<<___;
+ ################################################################
+ # lazy reduction (interleaved with input splat)
+
+ vpsrlq \$26,$H3,$D3
+ vpand $MASK,$H3,$H3
+ vpsrldq \$6,$T0,$T2 # splat input
+ vpsrldq \$6,$T1,$T3
+ vpunpckhqdq $T1,$T0,$T4 # 4
+ vpaddq $D3,$H4,$H4 # h3 -> h4
+
+ vpsrlq \$26,$H0,$D0
+ vpand $MASK,$H0,$H0
+ vpunpcklqdq $T3,$T2,$T2 # 2:3
+ vpunpcklqdq $T1,$T0,$T0 # 0:1
+ vpaddq $D0,$H1,$H1 # h0 -> h1
+
+ vpsrlq \$26,$H4,$D4
+ vpand $MASK,$H4,$H4
+
+ vpsrlq \$26,$H1,$D1
+ vpand $MASK,$H1,$H1
+ vpsrlq \$30,$T2,$T3
+ vpsrlq \$4,$T2,$T2
+ vpaddq $D1,$H2,$H2 # h1 -> h2
+
+ vpaddq $D4,$H0,$H0
+ vpsllq \$2,$D4,$D4
+ vpsrlq \$26,$T0,$T1
+ vpsrlq \$40,$T4,$T4 # 4
+ vpaddq $D4,$H0,$H0 # h4 -> h0
+
+ vpsrlq \$26,$H2,$D2
+ vpand $MASK,$H2,$H2
+ vpand $MASK,$T2,$T2 # 2
+ vpand $MASK,$T0,$T0 # 0
+ vpaddq $D2,$H3,$H3 # h2 -> h3
+
+ vpsrlq \$26,$H0,$D0
+ vpand $MASK,$H0,$H0
+ vpaddq $H2,$T2,$H2 # accumulate input for .Ltail_avx2
+ vpand $MASK,$T1,$T1 # 1
+ vpaddq $D0,$H1,$H1 # h0 -> h1
+
+ vpsrlq \$26,$H3,$D3
+ vpand $MASK,$H3,$H3
+ vpand $MASK,$T3,$T3 # 3
+ vpor 32(%rcx),$T4,$T4 # padbit, yes, always
+ vpaddq $D3,$H4,$H4 # h3 -> h4
+
+ lea 0x90(%rsp),%rax # size optimization for .Ltail_avx2
+ add \$64,$len
+ jnz .Ltail_avx2$suffix
+
+ vpsubq $T2,$H2,$H2 # undo input accumulation
+ vmovd %x#$H0,`4*0-48-64`($ctx)# save partially reduced
+ vmovd %x#$H1,`4*1-48-64`($ctx)
+ vmovd %x#$H2,`4*2-48-64`($ctx)
+ vmovd %x#$H3,`4*3-48-64`($ctx)
+ vmovd %x#$H4,`4*4-48-64`($ctx)
+ vzeroall
+___
+$code.=<<___ if ($win64);
+ movdqa -0xb0(%r10),%xmm6
+ movdqa -0xa0(%r10),%xmm7
+ movdqa -0x90(%r10),%xmm8
+ movdqa -0x80(%r10),%xmm9
+ movdqa -0x70(%r10),%xmm10
+ movdqa -0x60(%r10),%xmm11
+ movdqa -0x50(%r10),%xmm12
+ movdqa -0x40(%r10),%xmm13
+ movdqa -0x30(%r10),%xmm14
+ movdqa -0x20(%r10),%xmm15
+ lea -8(%r10),%rsp
+.Ldo_avx512_epilogue:
+___
+$code.=<<___ if (!$win64);
+ lea -8(%r10),%rsp
+.cfi_def_cfa_register %rsp
+___
+$code.=<<___;
+ ret
+.cfi_endproc
+___
+
+}
+
+}
+
+&declare_function("poly1305_blocks_avx2", 32, 4);
+poly1305_blocks_avxN(0);
+&end_function("poly1305_blocks_avx2");
+
+if($kernel) {
+ $code .= "#endif\n";
+}
+
+#######################################################################
+if ($avx>2) {
+# On entry we have input length divisible by 64. But since inner loop
+# processes 128 bytes per iteration, cases when length is not divisible
+# by 128 are handled by passing tail 64 bytes to .Ltail_avx2. For this
+# reason stack layout is kept identical to poly1305_blocks_avx2. If not
+# for this tail, we wouldn't have to even allocate stack frame...
+
+if($kernel) {
+ $code .= "#ifdef CONFIG_AS_AVX512\n";
+}
+
+&declare_function("poly1305_blocks_avx512", 32, 4);
+poly1305_blocks_avxN(1);
+&end_function("poly1305_blocks_avx512");
+
+if ($kernel) {
+ $code .= "#endif\n";
+}
+
+if (!$kernel && $avx>3) {
+########################################################################
+# VPMADD52 version using 2^44 radix.
+#
+# One can argue that base 2^52 would be more natural. Well, even though
+# some operations would be more natural, one has to recognize couple of
+# things. Base 2^52 doesn't provide advantage over base 2^44 if you look
+# at amount of multiply-n-accumulate operations. Secondly, it makes it
+# impossible to pre-compute multiples of 5 [referred to as s[]/sN in
+# reference implementations], which means that more such operations
+# would have to be performed in inner loop, which in turn makes critical
+# path longer. In other words, even though base 2^44 reduction might
+# look less elegant, overall critical path is actually shorter...
+
+########################################################################
+# Layout of opaque area is following.
+#
+# unsigned __int64 h[3]; # current hash value base 2^44
+# unsigned __int64 s[2]; # key value*20 base 2^44
+# unsigned __int64 r[3]; # key value base 2^44
+# struct { unsigned __int64 r^1, r^3, r^2, r^4; } R[4];
+# # r^n positions reflect
+# # placement in register, not
+# # memory, R[3] is R[1]*20
+
+$code.=<<___;
+.type poly1305_init_base2_44,\@function,3
+.align 32
+poly1305_init_base2_44:
+ xor %eax,%eax
+ mov %rax,0($ctx) # initialize hash value
+ mov %rax,8($ctx)
+ mov %rax,16($ctx)
+
+.Linit_base2_44:
+ lea poly1305_blocks_vpmadd52(%rip),%r10
+ lea poly1305_emit_base2_44(%rip),%r11
+
+ mov \$0x0ffffffc0fffffff,%rax
+ mov \$0x0ffffffc0ffffffc,%rcx
+ and 0($inp),%rax
+ mov \$0x00000fffffffffff,%r8
+ and 8($inp),%rcx
+ mov \$0x00000fffffffffff,%r9
+ and %rax,%r8
+ shrd \$44,%rcx,%rax
+ mov %r8,40($ctx) # r0
+ and %r9,%rax
+ shr \$24,%rcx
+ mov %rax,48($ctx) # r1
+ lea (%rax,%rax,4),%rax # *5
+ mov %rcx,56($ctx) # r2
+ shl \$2,%rax # magic <<2
+ lea (%rcx,%rcx,4),%rcx # *5
+ shl \$2,%rcx # magic <<2
+ mov %rax,24($ctx) # s1
+ mov %rcx,32($ctx) # s2
+ movq \$-1,64($ctx) # write impossible value
+___
+$code.=<<___ if ($flavour !~ /elf32/);
+ mov %r10,0(%rdx)
+ mov %r11,8(%rdx)
+___
+$code.=<<___ if ($flavour =~ /elf32/);
+ mov %r10d,0(%rdx)
+ mov %r11d,4(%rdx)
+___
+$code.=<<___;
+ mov \$1,%eax
+ ret
+.size poly1305_init_base2_44,.-poly1305_init_base2_44
+___
+{
+my ($H0,$H1,$H2,$r2r1r0,$r1r0s2,$r0s2s1,$Dlo,$Dhi) = map("%ymm$_",(0..5,16,17));
+my ($T0,$inp_permd,$inp_shift,$PAD) = map("%ymm$_",(18..21));
+my ($reduc_mask,$reduc_rght,$reduc_left) = map("%ymm$_",(22..25));
+
+$code.=<<___;
+.type poly1305_blocks_vpmadd52,\@function,4
+.align 32
+poly1305_blocks_vpmadd52:
+ shr \$4,$len
+ jz .Lno_data_vpmadd52 # too short
+
+ shl \$40,$padbit
+ mov 64($ctx),%r8 # peek on power of the key
+
+ # if powers of the key are not calculated yet, process up to 3
+ # blocks with this single-block subroutine, otherwise ensure that
+ # length is divisible by 2 blocks and pass the rest down to next
+ # subroutine...
+
+ mov \$3,%rax
+ mov \$1,%r10
+ cmp \$4,$len # is input long
+ cmovae %r10,%rax
+ test %r8,%r8 # is power value impossible?
+ cmovns %r10,%rax
+
+ and $len,%rax # is input of favourable length?
+ jz .Lblocks_vpmadd52_4x
+
+ sub %rax,$len
+ mov \$7,%r10d
+ mov \$1,%r11d
+ kmovw %r10d,%k7
+ lea .L2_44_inp_permd(%rip),%r10
+ kmovw %r11d,%k1
+
+ vmovq $padbit,%x#$PAD
+ vmovdqa64 0(%r10),$inp_permd # .L2_44_inp_permd
+ vmovdqa64 32(%r10),$inp_shift # .L2_44_inp_shift
+ vpermq \$0xcf,$PAD,$PAD
+ vmovdqa64 64(%r10),$reduc_mask # .L2_44_mask
+
+ vmovdqu64 0($ctx),${Dlo}{%k7}{z} # load hash value
+ vmovdqu64 40($ctx),${r2r1r0}{%k7}{z} # load keys
+ vmovdqu64 32($ctx),${r1r0s2}{%k7}{z}
+ vmovdqu64 24($ctx),${r0s2s1}{%k7}{z}
+
+ vmovdqa64 96(%r10),$reduc_rght # .L2_44_shift_rgt
+ vmovdqa64 128(%r10),$reduc_left # .L2_44_shift_lft
+
+ jmp .Loop_vpmadd52
+
+.align 32
+.Loop_vpmadd52:
+ vmovdqu32 0($inp),%x#$T0 # load input as ----3210
+ lea 16($inp),$inp
+
+ vpermd $T0,$inp_permd,$T0 # ----3210 -> --322110
+ vpsrlvq $inp_shift,$T0,$T0
+ vpandq $reduc_mask,$T0,$T0
+ vporq $PAD,$T0,$T0
+
+ vpaddq $T0,$Dlo,$Dlo # accumulate input
+
+ vpermq \$0,$Dlo,${H0}{%k7}{z} # smash hash value
+ vpermq \$0b01010101,$Dlo,${H1}{%k7}{z}
+ vpermq \$0b10101010,$Dlo,${H2}{%k7}{z}
+
+ vpxord $Dlo,$Dlo,$Dlo
+ vpxord $Dhi,$Dhi,$Dhi
+
+ vpmadd52luq $r2r1r0,$H0,$Dlo
+ vpmadd52huq $r2r1r0,$H0,$Dhi
+
+ vpmadd52luq $r1r0s2,$H1,$Dlo
+ vpmadd52huq $r1r0s2,$H1,$Dhi
+
+ vpmadd52luq $r0s2s1,$H2,$Dlo
+ vpmadd52huq $r0s2s1,$H2,$Dhi
+
+ vpsrlvq $reduc_rght,$Dlo,$T0 # 0 in topmost qword
+ vpsllvq $reduc_left,$Dhi,$Dhi # 0 in topmost qword
+ vpandq $reduc_mask,$Dlo,$Dlo
+
+ vpaddq $T0,$Dhi,$Dhi
+
+ vpermq \$0b10010011,$Dhi,$Dhi # 0 in lowest qword
+
+ vpaddq $Dhi,$Dlo,$Dlo # note topmost qword :-)
+
+ vpsrlvq $reduc_rght,$Dlo,$T0 # 0 in topmost word
+ vpandq $reduc_mask,$Dlo,$Dlo
+
+ vpermq \$0b10010011,$T0,$T0
+
+ vpaddq $T0,$Dlo,$Dlo
+
+ vpermq \$0b10010011,$Dlo,${T0}{%k1}{z}
+
+ vpaddq $T0,$Dlo,$Dlo
+ vpsllq \$2,$T0,$T0
+
+ vpaddq $T0,$Dlo,$Dlo
+
+ dec %rax # len-=16
+ jnz .Loop_vpmadd52
+
+ vmovdqu64 $Dlo,0($ctx){%k7} # store hash value
+
+ test $len,$len
+ jnz .Lblocks_vpmadd52_4x
+
+.Lno_data_vpmadd52:
+ ret
+.size poly1305_blocks_vpmadd52,.-poly1305_blocks_vpmadd52
+___
+}
+{
+########################################################################
+# As implied by its name 4x subroutine processes 4 blocks in parallel
+# (but handles even 4*n+2 blocks lengths). It takes up to 4th key power
+# and is handled in 256-bit %ymm registers.
+
+my ($H0,$H1,$H2,$R0,$R1,$R2,$S1,$S2) = map("%ymm$_",(0..5,16,17));
+my ($D0lo,$D0hi,$D1lo,$D1hi,$D2lo,$D2hi) = map("%ymm$_",(18..23));
+my ($T0,$T1,$T2,$T3,$mask44,$mask42,$tmp,$PAD) = map("%ymm$_",(24..31));
+
+$code.=<<___;
+.type poly1305_blocks_vpmadd52_4x,\@function,4
+.align 32
+poly1305_blocks_vpmadd52_4x:
+ shr \$4,$len
+ jz .Lno_data_vpmadd52_4x # too short
+
+ shl \$40,$padbit
+ mov 64($ctx),%r8 # peek on power of the key
+
+.Lblocks_vpmadd52_4x:
+ vpbroadcastq $padbit,$PAD
+
+ vmovdqa64 .Lx_mask44(%rip),$mask44
+ mov \$5,%eax
+ vmovdqa64 .Lx_mask42(%rip),$mask42
+ kmovw %eax,%k1 # used in 2x path
+
+ test %r8,%r8 # is power value impossible?
+ js .Linit_vpmadd52 # if it is, then init R[4]
+
+ vmovq 0($ctx),%x#$H0 # load current hash value
+ vmovq 8($ctx),%x#$H1
+ vmovq 16($ctx),%x#$H2
+
+ test \$3,$len # is length 4*n+2?
+ jnz .Lblocks_vpmadd52_2x_do
+
+.Lblocks_vpmadd52_4x_do:
+ vpbroadcastq 64($ctx),$R0 # load 4th power of the key
+ vpbroadcastq 96($ctx),$R1
+ vpbroadcastq 128($ctx),$R2
+ vpbroadcastq 160($ctx),$S1
+
+.Lblocks_vpmadd52_4x_key_loaded:
+ vpsllq \$2,$R2,$S2 # S2 = R2*5*4
+ vpaddq $R2,$S2,$S2
+ vpsllq \$2,$S2,$S2
+
+ test \$7,$len # is len 8*n?
+ jz .Lblocks_vpmadd52_8x
+
+ vmovdqu64 16*0($inp),$T2 # load data
+ vmovdqu64 16*2($inp),$T3
+ lea 16*4($inp),$inp
+
+ vpunpcklqdq $T3,$T2,$T1 # transpose data
+ vpunpckhqdq $T3,$T2,$T3
+
+ # at this point 64-bit lanes are ordered as 3-1-2-0
+
+ vpsrlq \$24,$T3,$T2 # splat the data
+ vporq $PAD,$T2,$T2
+ vpaddq $T2,$H2,$H2 # accumulate input
+ vpandq $mask44,$T1,$T0
+ vpsrlq \$44,$T1,$T1
+ vpsllq \$20,$T3,$T3
+ vporq $T3,$T1,$T1
+ vpandq $mask44,$T1,$T1
+
+ sub \$4,$len
+ jz .Ltail_vpmadd52_4x
+ jmp .Loop_vpmadd52_4x
+ ud2
+
+.align 32
+.Linit_vpmadd52:
+ vmovq 24($ctx),%x#$S1 # load key
+ vmovq 56($ctx),%x#$H2
+ vmovq 32($ctx),%x#$S2
+ vmovq 40($ctx),%x#$R0
+ vmovq 48($ctx),%x#$R1
+
+ vmovdqa $R0,$H0
+ vmovdqa $R1,$H1
+ vmovdqa $H2,$R2
+
+ mov \$2,%eax
+
+.Lmul_init_vpmadd52:
+ vpxorq $D0lo,$D0lo,$D0lo
+ vpmadd52luq $H2,$S1,$D0lo
+ vpxorq $D0hi,$D0hi,$D0hi
+ vpmadd52huq $H2,$S1,$D0hi
+ vpxorq $D1lo,$D1lo,$D1lo
+ vpmadd52luq $H2,$S2,$D1lo
+ vpxorq $D1hi,$D1hi,$D1hi
+ vpmadd52huq $H2,$S2,$D1hi
+ vpxorq $D2lo,$D2lo,$D2lo
+ vpmadd52luq $H2,$R0,$D2lo
+ vpxorq $D2hi,$D2hi,$D2hi
+ vpmadd52huq $H2,$R0,$D2hi
+
+ vpmadd52luq $H0,$R0,$D0lo
+ vpmadd52huq $H0,$R0,$D0hi
+ vpmadd52luq $H0,$R1,$D1lo
+ vpmadd52huq $H0,$R1,$D1hi
+ vpmadd52luq $H0,$R2,$D2lo
+ vpmadd52huq $H0,$R2,$D2hi
+
+ vpmadd52luq $H1,$S2,$D0lo
+ vpmadd52huq $H1,$S2,$D0hi
+ vpmadd52luq $H1,$R0,$D1lo
+ vpmadd52huq $H1,$R0,$D1hi
+ vpmadd52luq $H1,$R1,$D2lo
+ vpmadd52huq $H1,$R1,$D2hi
+
+ ################################################################
+ # partial reduction
+ vpsrlq \$44,$D0lo,$tmp
+ vpsllq \$8,$D0hi,$D0hi
+ vpandq $mask44,$D0lo,$H0
+ vpaddq $tmp,$D0hi,$D0hi
+
+ vpaddq $D0hi,$D1lo,$D1lo
+
+ vpsrlq \$44,$D1lo,$tmp
+ vpsllq \$8,$D1hi,$D1hi
+ vpandq $mask44,$D1lo,$H1
+ vpaddq $tmp,$D1hi,$D1hi
+
+ vpaddq $D1hi,$D2lo,$D2lo
+
+ vpsrlq \$42,$D2lo,$tmp
+ vpsllq \$10,$D2hi,$D2hi
+ vpandq $mask42,$D2lo,$H2
+ vpaddq $tmp,$D2hi,$D2hi
+
+ vpaddq $D2hi,$H0,$H0
+ vpsllq \$2,$D2hi,$D2hi
+
+ vpaddq $D2hi,$H0,$H0
+
+ vpsrlq \$44,$H0,$tmp # additional step
+ vpandq $mask44,$H0,$H0
+
+ vpaddq $tmp,$H1,$H1
+
+ dec %eax
+ jz .Ldone_init_vpmadd52
+
+ vpunpcklqdq $R1,$H1,$R1 # 1,2
+ vpbroadcastq %x#$H1,%x#$H1 # 2,2
+ vpunpcklqdq $R2,$H2,$R2
+ vpbroadcastq %x#$H2,%x#$H2
+ vpunpcklqdq $R0,$H0,$R0
+ vpbroadcastq %x#$H0,%x#$H0
+
+ vpsllq \$2,$R1,$S1 # S1 = R1*5*4
+ vpsllq \$2,$R2,$S2 # S2 = R2*5*4
+ vpaddq $R1,$S1,$S1
+ vpaddq $R2,$S2,$S2
+ vpsllq \$2,$S1,$S1
+ vpsllq \$2,$S2,$S2
+
+ jmp .Lmul_init_vpmadd52
+ ud2
+
+.align 32
+.Ldone_init_vpmadd52:
+ vinserti128 \$1,%x#$R1,$H1,$R1 # 1,2,3,4
+ vinserti128 \$1,%x#$R2,$H2,$R2
+ vinserti128 \$1,%x#$R0,$H0,$R0
+
+ vpermq \$0b11011000,$R1,$R1 # 1,3,2,4
+ vpermq \$0b11011000,$R2,$R2
+ vpermq \$0b11011000,$R0,$R0
+
+ vpsllq \$2,$R1,$S1 # S1 = R1*5*4
+ vpaddq $R1,$S1,$S1
+ vpsllq \$2,$S1,$S1
+
+ vmovq 0($ctx),%x#$H0 # load current hash value
+ vmovq 8($ctx),%x#$H1
+ vmovq 16($ctx),%x#$H2
+
+ test \$3,$len # is length 4*n+2?
+ jnz .Ldone_init_vpmadd52_2x
+
+ vmovdqu64 $R0,64($ctx) # save key powers
+ vpbroadcastq %x#$R0,$R0 # broadcast 4th power
+ vmovdqu64 $R1,96($ctx)
+ vpbroadcastq %x#$R1,$R1
+ vmovdqu64 $R2,128($ctx)
+ vpbroadcastq %x#$R2,$R2
+ vmovdqu64 $S1,160($ctx)
+ vpbroadcastq %x#$S1,$S1
+
+ jmp .Lblocks_vpmadd52_4x_key_loaded
+ ud2
+
+.align 32
+.Ldone_init_vpmadd52_2x:
+ vmovdqu64 $R0,64($ctx) # save key powers
+ vpsrldq \$8,$R0,$R0 # 0-1-0-2
+ vmovdqu64 $R1,96($ctx)
+ vpsrldq \$8,$R1,$R1
+ vmovdqu64 $R2,128($ctx)
+ vpsrldq \$8,$R2,$R2
+ vmovdqu64 $S1,160($ctx)
+ vpsrldq \$8,$S1,$S1
+ jmp .Lblocks_vpmadd52_2x_key_loaded
+ ud2
+
+.align 32
+.Lblocks_vpmadd52_2x_do:
+ vmovdqu64 128+8($ctx),${R2}{%k1}{z}# load 2nd and 1st key powers
+ vmovdqu64 160+8($ctx),${S1}{%k1}{z}
+ vmovdqu64 64+8($ctx),${R0}{%k1}{z}
+ vmovdqu64 96+8($ctx),${R1}{%k1}{z}
+
+.Lblocks_vpmadd52_2x_key_loaded:
+ vmovdqu64 16*0($inp),$T2 # load data
+ vpxorq $T3,$T3,$T3
+ lea 16*2($inp),$inp
+
+ vpunpcklqdq $T3,$T2,$T1 # transpose data
+ vpunpckhqdq $T3,$T2,$T3
+
+ # at this point 64-bit lanes are ordered as x-1-x-0
+
+ vpsrlq \$24,$T3,$T2 # splat the data
+ vporq $PAD,$T2,$T2
+ vpaddq $T2,$H2,$H2 # accumulate input
+ vpandq $mask44,$T1,$T0
+ vpsrlq \$44,$T1,$T1
+ vpsllq \$20,$T3,$T3
+ vporq $T3,$T1,$T1
+ vpandq $mask44,$T1,$T1
+
+ jmp .Ltail_vpmadd52_2x
+ ud2
+
+.align 32
+.Loop_vpmadd52_4x:
+ #vpaddq $T2,$H2,$H2 # accumulate input
+ vpaddq $T0,$H0,$H0
+ vpaddq $T1,$H1,$H1
+
+ vpxorq $D0lo,$D0lo,$D0lo
+ vpmadd52luq $H2,$S1,$D0lo
+ vpxorq $D0hi,$D0hi,$D0hi
+ vpmadd52huq $H2,$S1,$D0hi
+ vpxorq $D1lo,$D1lo,$D1lo
+ vpmadd52luq $H2,$S2,$D1lo
+ vpxorq $D1hi,$D1hi,$D1hi
+ vpmadd52huq $H2,$S2,$D1hi
+ vpxorq $D2lo,$D2lo,$D2lo
+ vpmadd52luq $H2,$R0,$D2lo
+ vpxorq $D2hi,$D2hi,$D2hi
+ vpmadd52huq $H2,$R0,$D2hi
+
+ vmovdqu64 16*0($inp),$T2 # load data
+ vmovdqu64 16*2($inp),$T3
+ lea 16*4($inp),$inp
+ vpmadd52luq $H0,$R0,$D0lo
+ vpmadd52huq $H0,$R0,$D0hi
+ vpmadd52luq $H0,$R1,$D1lo
+ vpmadd52huq $H0,$R1,$D1hi
+ vpmadd52luq $H0,$R2,$D2lo
+ vpmadd52huq $H0,$R2,$D2hi
+
+ vpunpcklqdq $T3,$T2,$T1 # transpose data
+ vpunpckhqdq $T3,$T2,$T3
+ vpmadd52luq $H1,$S2,$D0lo
+ vpmadd52huq $H1,$S2,$D0hi
+ vpmadd52luq $H1,$R0,$D1lo
+ vpmadd52huq $H1,$R0,$D1hi
+ vpmadd52luq $H1,$R1,$D2lo
+ vpmadd52huq $H1,$R1,$D2hi
+
+ ################################################################
+ # partial reduction (interleaved with data splat)
+ vpsrlq \$44,$D0lo,$tmp
+ vpsllq \$8,$D0hi,$D0hi
+ vpandq $mask44,$D0lo,$H0
+ vpaddq $tmp,$D0hi,$D0hi
+
+ vpsrlq \$24,$T3,$T2
+ vporq $PAD,$T2,$T2
+ vpaddq $D0hi,$D1lo,$D1lo
+
+ vpsrlq \$44,$D1lo,$tmp
+ vpsllq \$8,$D1hi,$D1hi
+ vpandq $mask44,$D1lo,$H1
+ vpaddq $tmp,$D1hi,$D1hi
+
+ vpandq $mask44,$T1,$T0
+ vpsrlq \$44,$T1,$T1
+ vpsllq \$20,$T3,$T3
+ vpaddq $D1hi,$D2lo,$D2lo
+
+ vpsrlq \$42,$D2lo,$tmp
+ vpsllq \$10,$D2hi,$D2hi
+ vpandq $mask42,$D2lo,$H2
+ vpaddq $tmp,$D2hi,$D2hi
+
+ vpaddq $T2,$H2,$H2 # accumulate input
+ vpaddq $D2hi,$H0,$H0
+ vpsllq \$2,$D2hi,$D2hi
+
+ vpaddq $D2hi,$H0,$H0
+ vporq $T3,$T1,$T1
+ vpandq $mask44,$T1,$T1
+
+ vpsrlq \$44,$H0,$tmp # additional step
+ vpandq $mask44,$H0,$H0
+
+ vpaddq $tmp,$H1,$H1
+
+ sub \$4,$len # len-=64
+ jnz .Loop_vpmadd52_4x
+
+.Ltail_vpmadd52_4x:
+ vmovdqu64 128($ctx),$R2 # load all key powers
+ vmovdqu64 160($ctx),$S1
+ vmovdqu64 64($ctx),$R0
+ vmovdqu64 96($ctx),$R1
+
+.Ltail_vpmadd52_2x:
+ vpsllq \$2,$R2,$S2 # S2 = R2*5*4
+ vpaddq $R2,$S2,$S2
+ vpsllq \$2,$S2,$S2
+
+ #vpaddq $T2,$H2,$H2 # accumulate input
+ vpaddq $T0,$H0,$H0
+ vpaddq $T1,$H1,$H1
+
+ vpxorq $D0lo,$D0lo,$D0lo
+ vpmadd52luq $H2,$S1,$D0lo
+ vpxorq $D0hi,$D0hi,$D0hi
+ vpmadd52huq $H2,$S1,$D0hi
+ vpxorq $D1lo,$D1lo,$D1lo
+ vpmadd52luq $H2,$S2,$D1lo
+ vpxorq $D1hi,$D1hi,$D1hi
+ vpmadd52huq $H2,$S2,$D1hi
+ vpxorq $D2lo,$D2lo,$D2lo
+ vpmadd52luq $H2,$R0,$D2lo
+ vpxorq $D2hi,$D2hi,$D2hi
+ vpmadd52huq $H2,$R0,$D2hi
+
+ vpmadd52luq $H0,$R0,$D0lo
+ vpmadd52huq $H0,$R0,$D0hi
+ vpmadd52luq $H0,$R1,$D1lo
+ vpmadd52huq $H0,$R1,$D1hi
+ vpmadd52luq $H0,$R2,$D2lo
+ vpmadd52huq $H0,$R2,$D2hi
+
+ vpmadd52luq $H1,$S2,$D0lo
+ vpmadd52huq $H1,$S2,$D0hi
+ vpmadd52luq $H1,$R0,$D1lo
+ vpmadd52huq $H1,$R0,$D1hi
+ vpmadd52luq $H1,$R1,$D2lo
+ vpmadd52huq $H1,$R1,$D2hi
+
+ ################################################################
+ # horizontal addition
+
+ mov \$1,%eax
+ kmovw %eax,%k1
+ vpsrldq \$8,$D0lo,$T0
+ vpsrldq \$8,$D0hi,$H0
+ vpsrldq \$8,$D1lo,$T1
+ vpsrldq \$8,$D1hi,$H1
+ vpaddq $T0,$D0lo,$D0lo
+ vpaddq $H0,$D0hi,$D0hi
+ vpsrldq \$8,$D2lo,$T2
+ vpsrldq \$8,$D2hi,$H2
+ vpaddq $T1,$D1lo,$D1lo
+ vpaddq $H1,$D1hi,$D1hi
+ vpermq \$0x2,$D0lo,$T0
+ vpermq \$0x2,$D0hi,$H0
+ vpaddq $T2,$D2lo,$D2lo
+ vpaddq $H2,$D2hi,$D2hi
+
+ vpermq \$0x2,$D1lo,$T1
+ vpermq \$0x2,$D1hi,$H1
+ vpaddq $T0,$D0lo,${D0lo}{%k1}{z}
+ vpaddq $H0,$D0hi,${D0hi}{%k1}{z}
+ vpermq \$0x2,$D2lo,$T2
+ vpermq \$0x2,$D2hi,$H2
+ vpaddq $T1,$D1lo,${D1lo}{%k1}{z}
+ vpaddq $H1,$D1hi,${D1hi}{%k1}{z}
+ vpaddq $T2,$D2lo,${D2lo}{%k1}{z}
+ vpaddq $H2,$D2hi,${D2hi}{%k1}{z}
+
+ ################################################################
+ # partial reduction
+ vpsrlq \$44,$D0lo,$tmp
+ vpsllq \$8,$D0hi,$D0hi
+ vpandq $mask44,$D0lo,$H0
+ vpaddq $tmp,$D0hi,$D0hi
+
+ vpaddq $D0hi,$D1lo,$D1lo
+
+ vpsrlq \$44,$D1lo,$tmp
+ vpsllq \$8,$D1hi,$D1hi
+ vpandq $mask44,$D1lo,$H1
+ vpaddq $tmp,$D1hi,$D1hi
+
+ vpaddq $D1hi,$D2lo,$D2lo
+
+ vpsrlq \$42,$D2lo,$tmp
+ vpsllq \$10,$D2hi,$D2hi
+ vpandq $mask42,$D2lo,$H2
+ vpaddq $tmp,$D2hi,$D2hi
+
+ vpaddq $D2hi,$H0,$H0
+ vpsllq \$2,$D2hi,$D2hi
+
+ vpaddq $D2hi,$H0,$H0
+
+ vpsrlq \$44,$H0,$tmp # additional step
+ vpandq $mask44,$H0,$H0
+
+ vpaddq $tmp,$H1,$H1
+ # at this point $len is
+ # either 4*n+2 or 0...
+ sub \$2,$len # len-=32
+ ja .Lblocks_vpmadd52_4x_do
+
+ vmovq %x#$H0,0($ctx)
+ vmovq %x#$H1,8($ctx)
+ vmovq %x#$H2,16($ctx)
+ vzeroall
+
+.Lno_data_vpmadd52_4x:
+ ret
+.size poly1305_blocks_vpmadd52_4x,.-poly1305_blocks_vpmadd52_4x
+___
+}
+{
+########################################################################
+# As implied by its name 8x subroutine processes 8 blocks in parallel...
+# This is intermediate version, as it's used only in cases when input
+# length is either 8*n, 8*n+1 or 8*n+2...
+
+my ($H0,$H1,$H2,$R0,$R1,$R2,$S1,$S2) = map("%ymm$_",(0..5,16,17));
+my ($D0lo,$D0hi,$D1lo,$D1hi,$D2lo,$D2hi) = map("%ymm$_",(18..23));
+my ($T0,$T1,$T2,$T3,$mask44,$mask42,$tmp,$PAD) = map("%ymm$_",(24..31));
+my ($RR0,$RR1,$RR2,$SS1,$SS2) = map("%ymm$_",(6..10));
+
+$code.=<<___;
+.type poly1305_blocks_vpmadd52_8x,\@function,4
+.align 32
+poly1305_blocks_vpmadd52_8x:
+ shr \$4,$len
+ jz .Lno_data_vpmadd52_8x # too short
+
+ shl \$40,$padbit
+ mov 64($ctx),%r8 # peek on power of the key
+
+ vmovdqa64 .Lx_mask44(%rip),$mask44
+ vmovdqa64 .Lx_mask42(%rip),$mask42
+
+ test %r8,%r8 # is power value impossible?
+ js .Linit_vpmadd52 # if it is, then init R[4]
+
+ vmovq 0($ctx),%x#$H0 # load current hash value
+ vmovq 8($ctx),%x#$H1
+ vmovq 16($ctx),%x#$H2
+
+.Lblocks_vpmadd52_8x:
+ ################################################################
+ # fist we calculate more key powers
+
+ vmovdqu64 128($ctx),$R2 # load 1-3-2-4 powers
+ vmovdqu64 160($ctx),$S1
+ vmovdqu64 64($ctx),$R0
+ vmovdqu64 96($ctx),$R1
+
+ vpsllq \$2,$R2,$S2 # S2 = R2*5*4
+ vpaddq $R2,$S2,$S2
+ vpsllq \$2,$S2,$S2
+
+ vpbroadcastq %x#$R2,$RR2 # broadcast 4th power
+ vpbroadcastq %x#$R0,$RR0
+ vpbroadcastq %x#$R1,$RR1
+
+ vpxorq $D0lo,$D0lo,$D0lo
+ vpmadd52luq $RR2,$S1,$D0lo
+ vpxorq $D0hi,$D0hi,$D0hi
+ vpmadd52huq $RR2,$S1,$D0hi
+ vpxorq $D1lo,$D1lo,$D1lo
+ vpmadd52luq $RR2,$S2,$D1lo
+ vpxorq $D1hi,$D1hi,$D1hi
+ vpmadd52huq $RR2,$S2,$D1hi
+ vpxorq $D2lo,$D2lo,$D2lo
+ vpmadd52luq $RR2,$R0,$D2lo
+ vpxorq $D2hi,$D2hi,$D2hi
+ vpmadd52huq $RR2,$R0,$D2hi
+
+ vpmadd52luq $RR0,$R0,$D0lo
+ vpmadd52huq $RR0,$R0,$D0hi
+ vpmadd52luq $RR0,$R1,$D1lo
+ vpmadd52huq $RR0,$R1,$D1hi
+ vpmadd52luq $RR0,$R2,$D2lo
+ vpmadd52huq $RR0,$R2,$D2hi
+
+ vpmadd52luq $RR1,$S2,$D0lo
+ vpmadd52huq $RR1,$S2,$D0hi
+ vpmadd52luq $RR1,$R0,$D1lo
+ vpmadd52huq $RR1,$R0,$D1hi
+ vpmadd52luq $RR1,$R1,$D2lo
+ vpmadd52huq $RR1,$R1,$D2hi
+
+ ################################################################
+ # partial reduction
+ vpsrlq \$44,$D0lo,$tmp
+ vpsllq \$8,$D0hi,$D0hi
+ vpandq $mask44,$D0lo,$RR0
+ vpaddq $tmp,$D0hi,$D0hi
+
+ vpaddq $D0hi,$D1lo,$D1lo
+
+ vpsrlq \$44,$D1lo,$tmp
+ vpsllq \$8,$D1hi,$D1hi
+ vpandq $mask44,$D1lo,$RR1
+ vpaddq $tmp,$D1hi,$D1hi
+
+ vpaddq $D1hi,$D2lo,$D2lo
+
+ vpsrlq \$42,$D2lo,$tmp
+ vpsllq \$10,$D2hi,$D2hi
+ vpandq $mask42,$D2lo,$RR2
+ vpaddq $tmp,$D2hi,$D2hi
+
+ vpaddq $D2hi,$RR0,$RR0
+ vpsllq \$2,$D2hi,$D2hi
+
+ vpaddq $D2hi,$RR0,$RR0
+
+ vpsrlq \$44,$RR0,$tmp # additional step
+ vpandq $mask44,$RR0,$RR0
+
+ vpaddq $tmp,$RR1,$RR1
+
+ ################################################################
+ # At this point Rx holds 1324 powers, RRx - 5768, and the goal
+ # is 15263748, which reflects how data is loaded...
+
+ vpunpcklqdq $R2,$RR2,$T2 # 3748
+ vpunpckhqdq $R2,$RR2,$R2 # 1526
+ vpunpcklqdq $R0,$RR0,$T0
+ vpunpckhqdq $R0,$RR0,$R0
+ vpunpcklqdq $R1,$RR1,$T1
+ vpunpckhqdq $R1,$RR1,$R1
+___
+######## switch to %zmm
+map(s/%y/%z/, $H0,$H1,$H2,$R0,$R1,$R2,$S1,$S2);
+map(s/%y/%z/, $D0lo,$D0hi,$D1lo,$D1hi,$D2lo,$D2hi);
+map(s/%y/%z/, $T0,$T1,$T2,$T3,$mask44,$mask42,$tmp,$PAD);
+map(s/%y/%z/, $RR0,$RR1,$RR2,$SS1,$SS2);
+
+$code.=<<___;
+ vshufi64x2 \$0x44,$R2,$T2,$RR2 # 15263748
+ vshufi64x2 \$0x44,$R0,$T0,$RR0
+ vshufi64x2 \$0x44,$R1,$T1,$RR1
+
+ vmovdqu64 16*0($inp),$T2 # load data
+ vmovdqu64 16*4($inp),$T3
+ lea 16*8($inp),$inp
+
+ vpsllq \$2,$RR2,$SS2 # S2 = R2*5*4
+ vpsllq \$2,$RR1,$SS1 # S1 = R1*5*4
+ vpaddq $RR2,$SS2,$SS2
+ vpaddq $RR1,$SS1,$SS1
+ vpsllq \$2,$SS2,$SS2
+ vpsllq \$2,$SS1,$SS1
+
+ vpbroadcastq $padbit,$PAD
+ vpbroadcastq %x#$mask44,$mask44
+ vpbroadcastq %x#$mask42,$mask42
+
+ vpbroadcastq %x#$SS1,$S1 # broadcast 8th power
+ vpbroadcastq %x#$SS2,$S2
+ vpbroadcastq %x#$RR0,$R0
+ vpbroadcastq %x#$RR1,$R1
+ vpbroadcastq %x#$RR2,$R2
+
+ vpunpcklqdq $T3,$T2,$T1 # transpose data
+ vpunpckhqdq $T3,$T2,$T3
+
+ # at this point 64-bit lanes are ordered as 73625140
+
+ vpsrlq \$24,$T3,$T2 # splat the data
+ vporq $PAD,$T2,$T2
+ vpaddq $T2,$H2,$H2 # accumulate input
+ vpandq $mask44,$T1,$T0
+ vpsrlq \$44,$T1,$T1
+ vpsllq \$20,$T3,$T3
+ vporq $T3,$T1,$T1
+ vpandq $mask44,$T1,$T1
+
+ sub \$8,$len
+ jz .Ltail_vpmadd52_8x
+ jmp .Loop_vpmadd52_8x
+
+.align 32
+.Loop_vpmadd52_8x:
+ #vpaddq $T2,$H2,$H2 # accumulate input
+ vpaddq $T0,$H0,$H0
+ vpaddq $T1,$H1,$H1
+
+ vpxorq $D0lo,$D0lo,$D0lo
+ vpmadd52luq $H2,$S1,$D0lo
+ vpxorq $D0hi,$D0hi,$D0hi
+ vpmadd52huq $H2,$S1,$D0hi
+ vpxorq $D1lo,$D1lo,$D1lo
+ vpmadd52luq $H2,$S2,$D1lo
+ vpxorq $D1hi,$D1hi,$D1hi
+ vpmadd52huq $H2,$S2,$D1hi
+ vpxorq $D2lo,$D2lo,$D2lo
+ vpmadd52luq $H2,$R0,$D2lo
+ vpxorq $D2hi,$D2hi,$D2hi
+ vpmadd52huq $H2,$R0,$D2hi
+
+ vmovdqu64 16*0($inp),$T2 # load data
+ vmovdqu64 16*4($inp),$T3
+ lea 16*8($inp),$inp
+ vpmadd52luq $H0,$R0,$D0lo
+ vpmadd52huq $H0,$R0,$D0hi
+ vpmadd52luq $H0,$R1,$D1lo
+ vpmadd52huq $H0,$R1,$D1hi
+ vpmadd52luq $H0,$R2,$D2lo
+ vpmadd52huq $H0,$R2,$D2hi
+
+ vpunpcklqdq $T3,$T2,$T1 # transpose data
+ vpunpckhqdq $T3,$T2,$T3
+ vpmadd52luq $H1,$S2,$D0lo
+ vpmadd52huq $H1,$S2,$D0hi
+ vpmadd52luq $H1,$R0,$D1lo
+ vpmadd52huq $H1,$R0,$D1hi
+ vpmadd52luq $H1,$R1,$D2lo
+ vpmadd52huq $H1,$R1,$D2hi
+
+ ################################################################
+ # partial reduction (interleaved with data splat)
+ vpsrlq \$44,$D0lo,$tmp
+ vpsllq \$8,$D0hi,$D0hi
+ vpandq $mask44,$D0lo,$H0
+ vpaddq $tmp,$D0hi,$D0hi
+
+ vpsrlq \$24,$T3,$T2
+ vporq $PAD,$T2,$T2
+ vpaddq $D0hi,$D1lo,$D1lo
+
+ vpsrlq \$44,$D1lo,$tmp
+ vpsllq \$8,$D1hi,$D1hi
+ vpandq $mask44,$D1lo,$H1
+ vpaddq $tmp,$D1hi,$D1hi
+
+ vpandq $mask44,$T1,$T0
+ vpsrlq \$44,$T1,$T1
+ vpsllq \$20,$T3,$T3
+ vpaddq $D1hi,$D2lo,$D2lo
+
+ vpsrlq \$42,$D2lo,$tmp
+ vpsllq \$10,$D2hi,$D2hi
+ vpandq $mask42,$D2lo,$H2
+ vpaddq $tmp,$D2hi,$D2hi
+
+ vpaddq $T2,$H2,$H2 # accumulate input
+ vpaddq $D2hi,$H0,$H0
+ vpsllq \$2,$D2hi,$D2hi
+
+ vpaddq $D2hi,$H0,$H0
+ vporq $T3,$T1,$T1
+ vpandq $mask44,$T1,$T1
+
+ vpsrlq \$44,$H0,$tmp # additional step
+ vpandq $mask44,$H0,$H0
+
+ vpaddq $tmp,$H1,$H1
+
+ sub \$8,$len # len-=128
+ jnz .Loop_vpmadd52_8x
+
+.Ltail_vpmadd52_8x:
+ #vpaddq $T2,$H2,$H2 # accumulate input
+ vpaddq $T0,$H0,$H0
+ vpaddq $T1,$H1,$H1
+
+ vpxorq $D0lo,$D0lo,$D0lo
+ vpmadd52luq $H2,$SS1,$D0lo
+ vpxorq $D0hi,$D0hi,$D0hi
+ vpmadd52huq $H2,$SS1,$D0hi
+ vpxorq $D1lo,$D1lo,$D1lo
+ vpmadd52luq $H2,$SS2,$D1lo
+ vpxorq $D1hi,$D1hi,$D1hi
+ vpmadd52huq $H2,$SS2,$D1hi
+ vpxorq $D2lo,$D2lo,$D2lo
+ vpmadd52luq $H2,$RR0,$D2lo
+ vpxorq $D2hi,$D2hi,$D2hi
+ vpmadd52huq $H2,$RR0,$D2hi
+
+ vpmadd52luq $H0,$RR0,$D0lo
+ vpmadd52huq $H0,$RR0,$D0hi
+ vpmadd52luq $H0,$RR1,$D1lo
+ vpmadd52huq $H0,$RR1,$D1hi
+ vpmadd52luq $H0,$RR2,$D2lo
+ vpmadd52huq $H0,$RR2,$D2hi
+
+ vpmadd52luq $H1,$SS2,$D0lo
+ vpmadd52huq $H1,$SS2,$D0hi
+ vpmadd52luq $H1,$RR0,$D1lo
+ vpmadd52huq $H1,$RR0,$D1hi
+ vpmadd52luq $H1,$RR1,$D2lo
+ vpmadd52huq $H1,$RR1,$D2hi
+
+ ################################################################
+ # horizontal addition
+
+ mov \$1,%eax
+ kmovw %eax,%k1
+ vpsrldq \$8,$D0lo,$T0
+ vpsrldq \$8,$D0hi,$H0
+ vpsrldq \$8,$D1lo,$T1
+ vpsrldq \$8,$D1hi,$H1
+ vpaddq $T0,$D0lo,$D0lo
+ vpaddq $H0,$D0hi,$D0hi
+ vpsrldq \$8,$D2lo,$T2
+ vpsrldq \$8,$D2hi,$H2
+ vpaddq $T1,$D1lo,$D1lo
+ vpaddq $H1,$D1hi,$D1hi
+ vpermq \$0x2,$D0lo,$T0
+ vpermq \$0x2,$D0hi,$H0
+ vpaddq $T2,$D2lo,$D2lo
+ vpaddq $H2,$D2hi,$D2hi
+
+ vpermq \$0x2,$D1lo,$T1
+ vpermq \$0x2,$D1hi,$H1
+ vpaddq $T0,$D0lo,$D0lo
+ vpaddq $H0,$D0hi,$D0hi
+ vpermq \$0x2,$D2lo,$T2
+ vpermq \$0x2,$D2hi,$H2
+ vpaddq $T1,$D1lo,$D1lo
+ vpaddq $H1,$D1hi,$D1hi
+ vextracti64x4 \$1,$D0lo,%y#$T0
+ vextracti64x4 \$1,$D0hi,%y#$H0
+ vpaddq $T2,$D2lo,$D2lo
+ vpaddq $H2,$D2hi,$D2hi
+
+ vextracti64x4 \$1,$D1lo,%y#$T1
+ vextracti64x4 \$1,$D1hi,%y#$H1
+ vextracti64x4 \$1,$D2lo,%y#$T2
+ vextracti64x4 \$1,$D2hi,%y#$H2
+___
+######## switch back to %ymm
+map(s/%z/%y/, $H0,$H1,$H2,$R0,$R1,$R2,$S1,$S2);
+map(s/%z/%y/, $D0lo,$D0hi,$D1lo,$D1hi,$D2lo,$D2hi);
+map(s/%z/%y/, $T0,$T1,$T2,$T3,$mask44,$mask42,$tmp,$PAD);
+
+$code.=<<___;
+ vpaddq $T0,$D0lo,${D0lo}{%k1}{z}
+ vpaddq $H0,$D0hi,${D0hi}{%k1}{z}
+ vpaddq $T1,$D1lo,${D1lo}{%k1}{z}
+ vpaddq $H1,$D1hi,${D1hi}{%k1}{z}
+ vpaddq $T2,$D2lo,${D2lo}{%k1}{z}
+ vpaddq $H2,$D2hi,${D2hi}{%k1}{z}
+
+ ################################################################
+ # partial reduction
+ vpsrlq \$44,$D0lo,$tmp
+ vpsllq \$8,$D0hi,$D0hi
+ vpandq $mask44,$D0lo,$H0
+ vpaddq $tmp,$D0hi,$D0hi
+
+ vpaddq $D0hi,$D1lo,$D1lo
+
+ vpsrlq \$44,$D1lo,$tmp
+ vpsllq \$8,$D1hi,$D1hi
+ vpandq $mask44,$D1lo,$H1
+ vpaddq $tmp,$D1hi,$D1hi
+
+ vpaddq $D1hi,$D2lo,$D2lo
+
+ vpsrlq \$42,$D2lo,$tmp
+ vpsllq \$10,$D2hi,$D2hi
+ vpandq $mask42,$D2lo,$H2
+ vpaddq $tmp,$D2hi,$D2hi
+
+ vpaddq $D2hi,$H0,$H0
+ vpsllq \$2,$D2hi,$D2hi
+
+ vpaddq $D2hi,$H0,$H0
+
+ vpsrlq \$44,$H0,$tmp # additional step
+ vpandq $mask44,$H0,$H0
+
+ vpaddq $tmp,$H1,$H1
+
+ ################################################################
+
+ vmovq %x#$H0,0($ctx)
+ vmovq %x#$H1,8($ctx)
+ vmovq %x#$H2,16($ctx)
+ vzeroall
+
+.Lno_data_vpmadd52_8x:
+ ret
+.size poly1305_blocks_vpmadd52_8x,.-poly1305_blocks_vpmadd52_8x
+___
+}
+$code.=<<___;
+.type poly1305_emit_base2_44,\@function,3
+.align 32
+poly1305_emit_base2_44:
+ mov 0($ctx),%r8 # load hash value
+ mov 8($ctx),%r9
+ mov 16($ctx),%r10
+
+ mov %r9,%rax
+ shr \$20,%r9
+ shl \$44,%rax
+ mov %r10,%rcx
+ shr \$40,%r10
+ shl \$24,%rcx
+
+ add %rax,%r8
+ adc %rcx,%r9
+ adc \$0,%r10
+
+ mov %r8,%rax
+ add \$5,%r8 # compare to modulus
+ mov %r9,%rcx
+ adc \$0,%r9
+ adc \$0,%r10
+ shr \$2,%r10 # did 130-bit value overflow?
+ cmovnz %r8,%rax
+ cmovnz %r9,%rcx
+
+ add 0($nonce),%rax # accumulate nonce
+ adc 8($nonce),%rcx
+ mov %rax,0($mac) # write result
+ mov %rcx,8($mac)
+
+ ret
+.size poly1305_emit_base2_44,.-poly1305_emit_base2_44
+___
+} } }
+}
+
+if (!$kernel)
+{ # chacha20-poly1305 helpers
+my ($out,$inp,$otp,$len)=$win64 ? ("%rcx","%rdx","%r8", "%r9") : # Win64 order
+ ("%rdi","%rsi","%rdx","%rcx"); # Unix order
+$code.=<<___;
+.globl xor128_encrypt_n_pad
+.type xor128_encrypt_n_pad,\@abi-omnipotent
+.align 16
+xor128_encrypt_n_pad:
+ sub $otp,$inp
+ sub $otp,$out
+ mov $len,%r10 # put len aside
+ shr \$4,$len # len / 16
+ jz .Ltail_enc
+ nop
+.Loop_enc_xmm:
+ movdqu ($inp,$otp),%xmm0
+ pxor ($otp),%xmm0
+ movdqu %xmm0,($out,$otp)
+ movdqa %xmm0,($otp)
+ lea 16($otp),$otp
+ dec $len
+ jnz .Loop_enc_xmm
+
+ and \$15,%r10 # len % 16
+ jz .Ldone_enc
+
+.Ltail_enc:
+ mov \$16,$len
+ sub %r10,$len
+ xor %eax,%eax
+.Loop_enc_byte:
+ mov ($inp,$otp),%al
+ xor ($otp),%al
+ mov %al,($out,$otp)
+ mov %al,($otp)
+ lea 1($otp),$otp
+ dec %r10
+ jnz .Loop_enc_byte
+
+ xor %eax,%eax
+.Loop_enc_pad:
+ mov %al,($otp)
+ lea 1($otp),$otp
+ dec $len
+ jnz .Loop_enc_pad
+
+.Ldone_enc:
+ mov $otp,%rax
+ ret
+.size xor128_encrypt_n_pad,.-xor128_encrypt_n_pad
+
+.globl xor128_decrypt_n_pad
+.type xor128_decrypt_n_pad,\@abi-omnipotent
+.align 16
+xor128_decrypt_n_pad:
+ sub $otp,$inp
+ sub $otp,$out
+ mov $len,%r10 # put len aside
+ shr \$4,$len # len / 16
+ jz .Ltail_dec
+ nop
+.Loop_dec_xmm:
+ movdqu ($inp,$otp),%xmm0
+ movdqa ($otp),%xmm1
+ pxor %xmm0,%xmm1
+ movdqu %xmm1,($out,$otp)
+ movdqa %xmm0,($otp)
+ lea 16($otp),$otp
+ dec $len
+ jnz .Loop_dec_xmm
+
+ pxor %xmm1,%xmm1
+ and \$15,%r10 # len % 16
+ jz .Ldone_dec
+
+.Ltail_dec:
+ mov \$16,$len
+ sub %r10,$len
+ xor %eax,%eax
+ xor %r11d,%r11d
+.Loop_dec_byte:
+ mov ($inp,$otp),%r11b
+ mov ($otp),%al
+ xor %r11b,%al
+ mov %al,($out,$otp)
+ mov %r11b,($otp)
+ lea 1($otp),$otp
+ dec %r10
+ jnz .Loop_dec_byte
+
+ xor %eax,%eax
+.Loop_dec_pad:
+ mov %al,($otp)
+ lea 1($otp),$otp
+ dec $len
+ jnz .Loop_dec_pad
+
+.Ldone_dec:
+ mov $otp,%rax
+ ret
+.size xor128_decrypt_n_pad,.-xor128_decrypt_n_pad
+___
+}
+
+# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
+# CONTEXT *context,DISPATCHER_CONTEXT *disp)
+if ($win64) {
+$rec="%rcx";
+$frame="%rdx";
+$context="%r8";
+$disp="%r9";
+
+$code.=<<___;
+.extern __imp_RtlVirtualUnwind
+.type se_handler,\@abi-omnipotent
+.align 16
+se_handler:
+ push %rsi
+ push %rdi
+ push %rbx
+ push %rbp
+ push %r12
+ push %r13
+ push %r14
+ push %r15
+ pushfq
+ sub \$64,%rsp
+
+ mov 120($context),%rax # pull context->Rax
+ mov 248($context),%rbx # pull context->Rip
+
+ mov 8($disp),%rsi # disp->ImageBase
+ mov 56($disp),%r11 # disp->HandlerData
+
+ mov 0(%r11),%r10d # HandlerData[0]
+ lea (%rsi,%r10),%r10 # prologue label
+ cmp %r10,%rbx # context->Rip<.Lprologue
+ jb .Lcommon_seh_tail
+
+ mov 152($context),%rax # pull context->Rsp
+
+ mov 4(%r11),%r10d # HandlerData[1]
+ lea (%rsi,%r10),%r10 # epilogue label
+ cmp %r10,%rbx # context->Rip>=.Lepilogue
+ jae .Lcommon_seh_tail
+
+ lea 48(%rax),%rax
+
+ mov -8(%rax),%rbx
+ mov -16(%rax),%rbp
+ mov -24(%rax),%r12
+ mov -32(%rax),%r13
+ mov -40(%rax),%r14
+ mov -48(%rax),%r15
+ mov %rbx,144($context) # restore context->Rbx
+ mov %rbp,160($context) # restore context->Rbp
+ mov %r12,216($context) # restore context->R12
+ mov %r13,224($context) # restore context->R13
+ mov %r14,232($context) # restore context->R14
+ mov %r15,240($context) # restore context->R14
+
+ jmp .Lcommon_seh_tail
+.size se_handler,.-se_handler
+
+.type avx_handler,\@abi-omnipotent
+.align 16
+avx_handler:
+ push %rsi
+ push %rdi
+ push %rbx
+ push %rbp
+ push %r12
+ push %r13
+ push %r14
+ push %r15
+ pushfq
+ sub \$64,%rsp
+
+ mov 120($context),%rax # pull context->Rax
+ mov 248($context),%rbx # pull context->Rip
+
+ mov 8($disp),%rsi # disp->ImageBase
+ mov 56($disp),%r11 # disp->HandlerData
+
+ mov 0(%r11),%r10d # HandlerData[0]
+ lea (%rsi,%r10),%r10 # prologue label
+ cmp %r10,%rbx # context->Rip<prologue label
+ jb .Lcommon_seh_tail
+
+ mov 152($context),%rax # pull context->Rsp
+
+ mov 4(%r11),%r10d # HandlerData[1]
+ lea (%rsi,%r10),%r10 # epilogue label
+ cmp %r10,%rbx # context->Rip>=epilogue label
+ jae .Lcommon_seh_tail
+
+ mov 208($context),%rax # pull context->R11
+
+ lea 0x50(%rax),%rsi
+ lea 0xf8(%rax),%rax
+ lea 512($context),%rdi # &context.Xmm6
+ mov \$20,%ecx
+ .long 0xa548f3fc # cld; rep movsq
+
+.Lcommon_seh_tail:
+ mov 8(%rax),%rdi
+ mov 16(%rax),%rsi
+ mov %rax,152($context) # restore context->Rsp
+ mov %rsi,168($context) # restore context->Rsi
+ mov %rdi,176($context) # restore context->Rdi
+
+ mov 40($disp),%rdi # disp->ContextRecord
+ mov $context,%rsi # context
+ mov \$154,%ecx # sizeof(CONTEXT)
+ .long 0xa548f3fc # cld; rep movsq
+
+ mov $disp,%rsi
+ xor %ecx,%ecx # arg1, UNW_FLAG_NHANDLER
+ mov 8(%rsi),%rdx # arg2, disp->ImageBase
+ mov 0(%rsi),%r8 # arg3, disp->ControlPc
+ mov 16(%rsi),%r9 # arg4, disp->FunctionEntry
+ mov 40(%rsi),%r10 # disp->ContextRecord
+ lea 56(%rsi),%r11 # &disp->HandlerData
+ lea 24(%rsi),%r12 # &disp->EstablisherFrame
+ mov %r10,32(%rsp) # arg5
+ mov %r11,40(%rsp) # arg6
+ mov %r12,48(%rsp) # arg7
+ mov %rcx,56(%rsp) # arg8, (NULL)
+ call *__imp_RtlVirtualUnwind(%rip)
+
+ mov \$1,%eax # ExceptionContinueSearch
+ add \$64,%rsp
+ popfq
+ pop %r15
+ pop %r14
+ pop %r13
+ pop %r12
+ pop %rbp
+ pop %rbx
+ pop %rdi
+ pop %rsi
+ ret
+.size avx_handler,.-avx_handler
+
+.section .pdata
+.align 4
+ .rva .LSEH_begin_poly1305_init_x86_64
+ .rva .LSEH_end_poly1305_init_x86_64
+ .rva .LSEH_info_poly1305_init_x86_64
+
+ .rva .LSEH_begin_poly1305_blocks_x86_64
+ .rva .LSEH_end_poly1305_blocks_x86_64
+ .rva .LSEH_info_poly1305_blocks_x86_64
+
+ .rva .LSEH_begin_poly1305_emit_x86_64
+ .rva .LSEH_end_poly1305_emit_x86_64
+ .rva .LSEH_info_poly1305_emit_x86_64
+___
+$code.=<<___ if ($avx);
+ .rva .LSEH_begin_poly1305_blocks_avx
+ .rva .Lbase2_64_avx
+ .rva .LSEH_info_poly1305_blocks_avx_1
+
+ .rva .Lbase2_64_avx
+ .rva .Leven_avx
+ .rva .LSEH_info_poly1305_blocks_avx_2
+
+ .rva .Leven_avx
+ .rva .LSEH_end_poly1305_blocks_avx
+ .rva .LSEH_info_poly1305_blocks_avx_3
+
+ .rva .LSEH_begin_poly1305_emit_avx
+ .rva .LSEH_end_poly1305_emit_avx
+ .rva .LSEH_info_poly1305_emit_avx
+___
+$code.=<<___ if ($avx>1);
+ .rva .LSEH_begin_poly1305_blocks_avx2
+ .rva .Lbase2_64_avx2
+ .rva .LSEH_info_poly1305_blocks_avx2_1
+
+ .rva .Lbase2_64_avx2
+ .rva .Leven_avx2
+ .rva .LSEH_info_poly1305_blocks_avx2_2
+
+ .rva .Leven_avx2
+ .rva .LSEH_end_poly1305_blocks_avx2
+ .rva .LSEH_info_poly1305_blocks_avx2_3
+___
+$code.=<<___ if ($avx>2);
+ .rva .LSEH_begin_poly1305_blocks_avx512
+ .rva .LSEH_end_poly1305_blocks_avx512
+ .rva .LSEH_info_poly1305_blocks_avx512
+___
+$code.=<<___;
+.section .xdata
+.align 8
+.LSEH_info_poly1305_init_x86_64:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .LSEH_begin_poly1305_init_x86_64,.LSEH_begin_poly1305_init_x86_64
+
+.LSEH_info_poly1305_blocks_x86_64:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .Lblocks_body,.Lblocks_epilogue
+
+.LSEH_info_poly1305_emit_x86_64:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .LSEH_begin_poly1305_emit_x86_64,.LSEH_begin_poly1305_emit_x86_64
+___
+$code.=<<___ if ($avx);
+.LSEH_info_poly1305_blocks_avx_1:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .Lblocks_avx_body,.Lblocks_avx_epilogue # HandlerData[]
+
+.LSEH_info_poly1305_blocks_avx_2:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .Lbase2_64_avx_body,.Lbase2_64_avx_epilogue # HandlerData[]
+
+.LSEH_info_poly1305_blocks_avx_3:
+ .byte 9,0,0,0
+ .rva avx_handler
+ .rva .Ldo_avx_body,.Ldo_avx_epilogue # HandlerData[]
+
+.LSEH_info_poly1305_emit_avx:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .LSEH_begin_poly1305_emit_avx,.LSEH_begin_poly1305_emit_avx
+___
+$code.=<<___ if ($avx>1);
+.LSEH_info_poly1305_blocks_avx2_1:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .Lblocks_avx2_body,.Lblocks_avx2_epilogue # HandlerData[]
+
+.LSEH_info_poly1305_blocks_avx2_2:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .Lbase2_64_avx2_body,.Lbase2_64_avx2_epilogue # HandlerData[]
+
+.LSEH_info_poly1305_blocks_avx2_3:
+ .byte 9,0,0,0
+ .rva avx_handler
+ .rva .Ldo_avx2_body,.Ldo_avx2_epilogue # HandlerData[]
+___
+$code.=<<___ if ($avx>2);
+.LSEH_info_poly1305_blocks_avx512:
+ .byte 9,0,0,0
+ .rva avx_handler
+ .rva .Ldo_avx512_body,.Ldo_avx512_epilogue # HandlerData[]
+___
+}
+
+open SELF,$0;
+while(<SELF>) {
+ next if (/^#!/);
+ last if (!s/^#/\/\// and !/^$/);
+ print;
+}
+close SELF;
+
+foreach (split('\n',$code)) {
+ s/\`([^\`]*)\`/eval($1)/ge;
+ s/%r([a-z]+)#d/%e$1/g;
+ s/%r([0-9]+)#d/%r$1d/g;
+ s/%x#%[yz]/%x/g or s/%y#%z/%y/g or s/%z#%[yz]/%z/g;
+
+ if ($kernel) {
+ s/(^\.type.*),[0-9]+$/\1/;
+ s/(^\.type.*),\@abi-omnipotent+$/\1,\@function/;
+ next if /^\.cfi.*/;
+ }
+
+ print $_,"\n";
+}
+close STDOUT;
diff --git a/arch/x86/crypto/poly1305_glue.c b/arch/x86/crypto/poly1305_glue.c
index f012b7e..e360ec1d 100644
--- a/arch/x86/crypto/poly1305_glue.c
+++ b/arch/x86/crypto/poly1305_glue.c
@@ -1,133 +1,175 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
/*
- * Poly1305 authenticator algorithm, RFC7539, SIMD glue code
- *
- * Copyright (C) 2015 Martin Willi
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
*/
#include <crypto/algapi.h>
#include <crypto/internal/hash.h>
-#include <crypto/poly1305.h>
+#include <crypto/internal/poly1305.h>
#include <linux/crypto.h>
+#include <linux/jump_label.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <asm/fpu/api.h>
#include <asm/simd.h>
+#include <asm/intel-family.h>
-struct poly1305_simd_desc_ctx {
- struct poly1305_desc_ctx base;
- /* derived key u set? */
- bool uset;
-#ifdef CONFIG_AS_AVX2
- /* derived keys r^3, r^4 set? */
- bool wset;
-#endif
- /* derived Poly1305 key r^2 */
- u32 u[5];
- /* ... silently appended r^3 and r^4 when using AVX2 */
+asmlinkage void poly1305_init_x86_64(void *ctx,
+ const u8 key[POLY1305_KEY_SIZE]);
+asmlinkage void poly1305_blocks_x86_64(void *ctx, const u8 *inp,
+ const size_t len, const u32 padbit);
+asmlinkage void poly1305_emit_x86_64(void *ctx, u8 mac[POLY1305_DIGEST_SIZE],
+ const u32 nonce[4]);
+asmlinkage void poly1305_emit_avx(void *ctx, u8 mac[POLY1305_DIGEST_SIZE],
+ const u32 nonce[4]);
+asmlinkage void poly1305_blocks_avx(void *ctx, const u8 *inp, const size_t len,
+ const u32 padbit);
+asmlinkage void poly1305_blocks_avx2(void *ctx, const u8 *inp, const size_t len,
+ const u32 padbit);
+asmlinkage void poly1305_blocks_avx512(void *ctx, const u8 *inp,
+ const size_t len, const u32 padbit);
+
+static __ro_after_init DEFINE_STATIC_KEY_FALSE(poly1305_use_avx);
+static __ro_after_init DEFINE_STATIC_KEY_FALSE(poly1305_use_avx2);
+static __ro_after_init DEFINE_STATIC_KEY_FALSE(poly1305_use_avx512);
+
+struct poly1305_arch_internal {
+ union {
+ struct {
+ u32 h[5];
+ u32 is_base2_26;
+ };
+ u64 hs[3];
+ };
+ u64 r[2];
+ u64 pad;
+ struct { u32 r2, r1, r4, r3; } rn[9];
};
-asmlinkage void poly1305_block_sse2(u32 *h, const u8 *src,
- const u32 *r, unsigned int blocks);
-asmlinkage void poly1305_2block_sse2(u32 *h, const u8 *src, const u32 *r,
- unsigned int blocks, const u32 *u);
-#ifdef CONFIG_AS_AVX2
-asmlinkage void poly1305_4block_avx2(u32 *h, const u8 *src, const u32 *r,
- unsigned int blocks, const u32 *u);
-static bool poly1305_use_avx2;
-#endif
-
-static int poly1305_simd_init(struct shash_desc *desc)
+/* The AVX code uses base 2^26, while the scalar code uses base 2^64. If we hit
+ * the unfortunate situation of using AVX and then having to go back to scalar
+ * -- because the user is silly and has called the update function from two
+ * separate contexts -- then we need to convert back to the original base before
+ * proceeding. It is possible to reason that the initial reduction below is
+ * sufficient given the implementation invariants. However, for an avoidance of
+ * doubt and because this is not performance critical, we do the full reduction
+ * anyway. Z3 proof of below function: https://xn--4db.cc/ltPtHCKN/py
+ */
+static void convert_to_base2_64(void *ctx)
{
- struct poly1305_simd_desc_ctx *sctx = shash_desc_ctx(desc);
+ struct poly1305_arch_internal *state = ctx;
+ u32 cy;
- sctx->uset = false;
-#ifdef CONFIG_AS_AVX2
- sctx->wset = false;
-#endif
+ if (!state->is_base2_26)
+ return;
- return crypto_poly1305_init(desc);
+ cy = state->h[0] >> 26; state->h[0] &= 0x3ffffff; state->h[1] += cy;
+ cy = state->h[1] >> 26; state->h[1] &= 0x3ffffff; state->h[2] += cy;
+ cy = state->h[2] >> 26; state->h[2] &= 0x3ffffff; state->h[3] += cy;
+ cy = state->h[3] >> 26; state->h[3] &= 0x3ffffff; state->h[4] += cy;
+ state->hs[0] = ((u64)state->h[2] << 52) | ((u64)state->h[1] << 26) | state->h[0];
+ state->hs[1] = ((u64)state->h[4] << 40) | ((u64)state->h[3] << 14) | (state->h[2] >> 12);
+ state->hs[2] = state->h[4] >> 24;
+#define ULT(a, b) ((a ^ ((a ^ b) | ((a - b) ^ b))) >> (sizeof(a) * 8 - 1))
+ cy = (state->hs[2] >> 2) + (state->hs[2] & ~3ULL);
+ state->hs[2] &= 3;
+ state->hs[0] += cy;
+ state->hs[1] += (cy = ULT(state->hs[0], cy));
+ state->hs[2] += ULT(state->hs[1], cy);
+#undef ULT
+ state->is_base2_26 = 0;
}
-static void poly1305_simd_mult(u32 *a, const u32 *b)
+static void poly1305_simd_init(void *ctx, const u8 key[POLY1305_KEY_SIZE])
{
- u8 m[POLY1305_BLOCK_SIZE];
-
- memset(m, 0, sizeof(m));
- /* The poly1305 block function adds a hi-bit to the accumulator which
- * we don't need for key multiplication; compensate for it. */
- a[4] -= 1 << 24;
- poly1305_block_sse2(a, m, b, 1);
+ poly1305_init_x86_64(ctx, key);
}
-static unsigned int poly1305_simd_blocks(struct poly1305_desc_ctx *dctx,
- const u8 *src, unsigned int srclen)
+static void poly1305_simd_blocks(void *ctx, const u8 *inp, size_t len,
+ const u32 padbit)
{
- struct poly1305_simd_desc_ctx *sctx;
- unsigned int blocks, datalen;
+ struct poly1305_arch_internal *state = ctx;
- BUILD_BUG_ON(offsetof(struct poly1305_simd_desc_ctx, base));
- sctx = container_of(dctx, struct poly1305_simd_desc_ctx, base);
+ /* SIMD disables preemption, so relax after processing each page. */
+ BUILD_BUG_ON(SZ_4K < POLY1305_BLOCK_SIZE ||
+ SZ_4K % POLY1305_BLOCK_SIZE);
+ if (!IS_ENABLED(CONFIG_AS_AVX) || !static_branch_likely(&poly1305_use_avx) ||
+ (len < (POLY1305_BLOCK_SIZE * 18) && !state->is_base2_26) ||
+ !may_use_simd()) {
+ convert_to_base2_64(ctx);
+ poly1305_blocks_x86_64(ctx, inp, len, padbit);
+ return;
+ }
+
+ do {
+ const size_t bytes = min_t(size_t, len, SZ_4K);
+
+ kernel_fpu_begin();
+ if (IS_ENABLED(CONFIG_AS_AVX512) && static_branch_likely(&poly1305_use_avx512))
+ poly1305_blocks_avx512(ctx, inp, bytes, padbit);
+ else if (IS_ENABLED(CONFIG_AS_AVX2) && static_branch_likely(&poly1305_use_avx2))
+ poly1305_blocks_avx2(ctx, inp, bytes, padbit);
+ else
+ poly1305_blocks_avx(ctx, inp, bytes, padbit);
+ kernel_fpu_end();
+
+ len -= bytes;
+ inp += bytes;
+ } while (len);
+}
+
+static void poly1305_simd_emit(void *ctx, u8 mac[POLY1305_DIGEST_SIZE],
+ const u32 nonce[4])
+{
+ if (!IS_ENABLED(CONFIG_AS_AVX) || !static_branch_likely(&poly1305_use_avx))
+ poly1305_emit_x86_64(ctx, mac, nonce);
+ else
+ poly1305_emit_avx(ctx, mac, nonce);
+}
+
+void poly1305_init_arch(struct poly1305_desc_ctx *dctx, const u8 *key)
+{
+ poly1305_simd_init(&dctx->h, key);
+ dctx->s[0] = get_unaligned_le32(&key[16]);
+ dctx->s[1] = get_unaligned_le32(&key[20]);
+ dctx->s[2] = get_unaligned_le32(&key[24]);
+ dctx->s[3] = get_unaligned_le32(&key[28]);
+ dctx->buflen = 0;
+ dctx->sset = true;
+}
+EXPORT_SYMBOL(poly1305_init_arch);
+
+static unsigned int crypto_poly1305_setdctxkey(struct poly1305_desc_ctx *dctx,
+ const u8 *inp, unsigned int len)
+{
+ unsigned int acc = 0;
if (unlikely(!dctx->sset)) {
- datalen = crypto_poly1305_setdesckey(dctx, src, srclen);
- src += srclen - datalen;
- srclen = datalen;
- }
-
-#ifdef CONFIG_AS_AVX2
- if (poly1305_use_avx2 && srclen >= POLY1305_BLOCK_SIZE * 4) {
- if (unlikely(!sctx->wset)) {
- if (!sctx->uset) {
- memcpy(sctx->u, dctx->r, sizeof(sctx->u));
- poly1305_simd_mult(sctx->u, dctx->r);
- sctx->uset = true;
- }
- memcpy(sctx->u + 5, sctx->u, sizeof(sctx->u));
- poly1305_simd_mult(sctx->u + 5, dctx->r);
- memcpy(sctx->u + 10, sctx->u + 5, sizeof(sctx->u));
- poly1305_simd_mult(sctx->u + 10, dctx->r);
- sctx->wset = true;
+ if (!dctx->rset && len >= POLY1305_BLOCK_SIZE) {
+ poly1305_simd_init(&dctx->h, inp);
+ inp += POLY1305_BLOCK_SIZE;
+ len -= POLY1305_BLOCK_SIZE;
+ acc += POLY1305_BLOCK_SIZE;
+ dctx->rset = 1;
}
- blocks = srclen / (POLY1305_BLOCK_SIZE * 4);
- poly1305_4block_avx2(dctx->h, src, dctx->r, blocks, sctx->u);
- src += POLY1305_BLOCK_SIZE * 4 * blocks;
- srclen -= POLY1305_BLOCK_SIZE * 4 * blocks;
- }
-#endif
- if (likely(srclen >= POLY1305_BLOCK_SIZE * 2)) {
- if (unlikely(!sctx->uset)) {
- memcpy(sctx->u, dctx->r, sizeof(sctx->u));
- poly1305_simd_mult(sctx->u, dctx->r);
- sctx->uset = true;
+ if (len >= POLY1305_BLOCK_SIZE) {
+ dctx->s[0] = get_unaligned_le32(&inp[0]);
+ dctx->s[1] = get_unaligned_le32(&inp[4]);
+ dctx->s[2] = get_unaligned_le32(&inp[8]);
+ dctx->s[3] = get_unaligned_le32(&inp[12]);
+ inp += POLY1305_BLOCK_SIZE;
+ len -= POLY1305_BLOCK_SIZE;
+ acc += POLY1305_BLOCK_SIZE;
+ dctx->sset = true;
}
- blocks = srclen / (POLY1305_BLOCK_SIZE * 2);
- poly1305_2block_sse2(dctx->h, src, dctx->r, blocks, sctx->u);
- src += POLY1305_BLOCK_SIZE * 2 * blocks;
- srclen -= POLY1305_BLOCK_SIZE * 2 * blocks;
}
- if (srclen >= POLY1305_BLOCK_SIZE) {
- poly1305_block_sse2(dctx->h, src, dctx->r, 1);
- srclen -= POLY1305_BLOCK_SIZE;
- }
- return srclen;
+ return acc;
}
-static int poly1305_simd_update(struct shash_desc *desc,
- const u8 *src, unsigned int srclen)
+void poly1305_update_arch(struct poly1305_desc_ctx *dctx, const u8 *src,
+ unsigned int srclen)
{
- struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
- unsigned int bytes;
-
- /* kernel_fpu_begin/end is costly, use fallback for small updates */
- if (srclen <= 288 || !may_use_simd())
- return crypto_poly1305_update(desc, src, srclen);
-
- kernel_fpu_begin();
+ unsigned int bytes, used;
if (unlikely(dctx->buflen)) {
bytes = min(srclen, POLY1305_BLOCK_SIZE - dctx->buflen);
@@ -137,34 +179,76 @@ static int poly1305_simd_update(struct shash_desc *desc,
dctx->buflen += bytes;
if (dctx->buflen == POLY1305_BLOCK_SIZE) {
- poly1305_simd_blocks(dctx, dctx->buf,
- POLY1305_BLOCK_SIZE);
+ if (likely(!crypto_poly1305_setdctxkey(dctx, dctx->buf, POLY1305_BLOCK_SIZE)))
+ poly1305_simd_blocks(&dctx->h, dctx->buf, POLY1305_BLOCK_SIZE, 1);
dctx->buflen = 0;
}
}
if (likely(srclen >= POLY1305_BLOCK_SIZE)) {
- bytes = poly1305_simd_blocks(dctx, src, srclen);
- src += srclen - bytes;
- srclen = bytes;
+ bytes = round_down(srclen, POLY1305_BLOCK_SIZE);
+ srclen -= bytes;
+ used = crypto_poly1305_setdctxkey(dctx, src, bytes);
+ if (likely(bytes - used))
+ poly1305_simd_blocks(&dctx->h, src + used, bytes - used, 1);
+ src += bytes;
}
- kernel_fpu_end();
-
if (unlikely(srclen)) {
dctx->buflen = srclen;
memcpy(dctx->buf, src, srclen);
}
+}
+EXPORT_SYMBOL(poly1305_update_arch);
+void poly1305_final_arch(struct poly1305_desc_ctx *dctx, u8 *dst)
+{
+ if (unlikely(dctx->buflen)) {
+ dctx->buf[dctx->buflen++] = 1;
+ memset(dctx->buf + dctx->buflen, 0,
+ POLY1305_BLOCK_SIZE - dctx->buflen);
+ poly1305_simd_blocks(&dctx->h, dctx->buf, POLY1305_BLOCK_SIZE, 0);
+ }
+
+ poly1305_simd_emit(&dctx->h, dst, dctx->s);
+ *dctx = (struct poly1305_desc_ctx){};
+}
+EXPORT_SYMBOL(poly1305_final_arch);
+
+static int crypto_poly1305_init(struct shash_desc *desc)
+{
+ struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
+
+ *dctx = (struct poly1305_desc_ctx){};
+ return 0;
+}
+
+static int crypto_poly1305_update(struct shash_desc *desc,
+ const u8 *src, unsigned int srclen)
+{
+ struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
+
+ poly1305_update_arch(dctx, src, srclen);
+ return 0;
+}
+
+static int crypto_poly1305_final(struct shash_desc *desc, u8 *dst)
+{
+ struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
+
+ if (unlikely(!dctx->sset))
+ return -ENOKEY;
+
+ poly1305_final_arch(dctx, dst);
return 0;
}
static struct shash_alg alg = {
.digestsize = POLY1305_DIGEST_SIZE,
- .init = poly1305_simd_init,
- .update = poly1305_simd_update,
+ .init = crypto_poly1305_init,
+ .update = crypto_poly1305_update,
.final = crypto_poly1305_final,
- .descsize = sizeof(struct poly1305_simd_desc_ctx),
+ .descsize = sizeof(struct poly1305_desc_ctx),
.base = {
.cra_name = "poly1305",
.cra_driver_name = "poly1305-simd",
@@ -176,30 +260,33 @@ static struct shash_alg alg = {
static int __init poly1305_simd_mod_init(void)
{
- if (!boot_cpu_has(X86_FEATURE_XMM2))
- return -ENODEV;
-
-#ifdef CONFIG_AS_AVX2
- poly1305_use_avx2 = boot_cpu_has(X86_FEATURE_AVX) &&
- boot_cpu_has(X86_FEATURE_AVX2) &&
- cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL);
- alg.descsize = sizeof(struct poly1305_simd_desc_ctx);
- if (poly1305_use_avx2)
- alg.descsize += 10 * sizeof(u32);
-#endif
- return crypto_register_shash(&alg);
+ if (IS_ENABLED(CONFIG_AS_AVX) && boot_cpu_has(X86_FEATURE_AVX) &&
+ cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL))
+ static_branch_enable(&poly1305_use_avx);
+ if (IS_ENABLED(CONFIG_AS_AVX2) && boot_cpu_has(X86_FEATURE_AVX) &&
+ boot_cpu_has(X86_FEATURE_AVX2) &&
+ cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL))
+ static_branch_enable(&poly1305_use_avx2);
+ if (IS_ENABLED(CONFIG_AS_AVX512) && boot_cpu_has(X86_FEATURE_AVX) &&
+ boot_cpu_has(X86_FEATURE_AVX2) && boot_cpu_has(X86_FEATURE_AVX512F) &&
+ cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM | XFEATURE_MASK_AVX512, NULL) &&
+ /* Skylake downclocks unacceptably much when using zmm, but later generations are fast. */
+ boot_cpu_data.x86_model != INTEL_FAM6_SKYLAKE_X)
+ static_branch_enable(&poly1305_use_avx512);
+ return IS_REACHABLE(CONFIG_CRYPTO_HASH) ? crypto_register_shash(&alg) : 0;
}
static void __exit poly1305_simd_mod_exit(void)
{
- crypto_unregister_shash(&alg);
+ if (IS_REACHABLE(CONFIG_CRYPTO_HASH))
+ crypto_unregister_shash(&alg);
}
module_init(poly1305_simd_mod_init);
module_exit(poly1305_simd_mod_exit);
MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Martin Willi <martin@strongswan.org>");
+MODULE_AUTHOR("Jason A. Donenfeld <Jason@zx2c4.com>");
MODULE_DESCRIPTION("Poly1305 authenticator");
MODULE_ALIAS_CRYPTO("poly1305");
MODULE_ALIAS_CRYPTO("poly1305-simd");
diff --git a/arch/x86/crypto/sha1_avx2_x86_64_asm.S b/arch/x86/crypto/sha1_avx2_x86_64_asm.S
index 9f712a7..7e578fa 100644
--- a/arch/x86/crypto/sha1_avx2_x86_64_asm.S
+++ b/arch/x86/crypto/sha1_avx2_x86_64_asm.S
@@ -62,11 +62,11 @@
*Visit http://software.intel.com/en-us/articles/
*and refer to improving-the-performance-of-the-secure-hash-algorithm-1/
*
- *Updates 20-byte SHA-1 record in 'hash' for even number of
- *'num_blocks' consecutive 64-byte blocks
+ *Updates 20-byte SHA-1 record at start of 'state', from 'input', for
+ *even number of 'blocks' consecutive 64-byte blocks.
*
*extern "C" void sha1_transform_avx2(
- * int *hash, const char* input, size_t num_blocks );
+ * struct sha1_state *state, const u8* input, int blocks );
*/
#include <linux/linkage.h>
diff --git a/arch/x86/crypto/sha1_ssse3_asm.S b/arch/x86/crypto/sha1_ssse3_asm.S
index 613d0bfc..5a2f857 100644
--- a/arch/x86/crypto/sha1_ssse3_asm.S
+++ b/arch/x86/crypto/sha1_ssse3_asm.S
@@ -461,9 +461,13 @@
movdqu \a,\b
.endm
-/* SSSE3 optimized implementation:
- * extern "C" void sha1_transform_ssse3(u32 *digest, const char *data, u32 *ws,
- * unsigned int rounds);
+/*
+ * SSSE3 optimized implementation:
+ *
+ * extern "C" void sha1_transform_ssse3(struct sha1_state *state,
+ * const u8 *data, int blocks);
+ *
+ * Note that struct sha1_state is assumed to begin with u32 state[5].
*/
SHA1_VECTOR_ASM sha1_transform_ssse3
@@ -549,8 +553,8 @@
/* AVX optimized implementation:
- * extern "C" void sha1_transform_avx(u32 *digest, const char *data, u32 *ws,
- * unsigned int rounds);
+ * extern "C" void sha1_transform_avx(struct sha1_state *state,
+ * const u8 *data, int blocks);
*/
SHA1_VECTOR_ASM sha1_transform_avx
diff --git a/arch/x86/crypto/sha1_ssse3_glue.c b/arch/x86/crypto/sha1_ssse3_glue.c
index 7391c7d..cb15a7a 100644
--- a/arch/x86/crypto/sha1_ssse3_glue.c
+++ b/arch/x86/crypto/sha1_ssse3_glue.c
@@ -31,11 +31,8 @@
#include <crypto/sha1_base.h>
#include <asm/fpu/api.h>
-typedef void (sha1_transform_fn)(u32 *digest, const char *data,
- unsigned int rounds);
-
static int sha1_update(struct shash_desc *desc, const u8 *data,
- unsigned int len, sha1_transform_fn *sha1_xform)
+ unsigned int len, sha1_block_fn *sha1_xform)
{
struct sha1_state *sctx = shash_desc_ctx(desc);
@@ -43,48 +40,47 @@ static int sha1_update(struct shash_desc *desc, const u8 *data,
(sctx->count % SHA1_BLOCK_SIZE) + len < SHA1_BLOCK_SIZE)
return crypto_sha1_update(desc, data, len);
- /* make sure casting to sha1_block_fn() is safe */
+ /*
+ * Make sure struct sha1_state begins directly with the SHA1
+ * 160-bit internal state, as this is what the asm functions expect.
+ */
BUILD_BUG_ON(offsetof(struct sha1_state, state) != 0);
kernel_fpu_begin();
- sha1_base_do_update(desc, data, len,
- (sha1_block_fn *)sha1_xform);
+ sha1_base_do_update(desc, data, len, sha1_xform);
kernel_fpu_end();
return 0;
}
static int sha1_finup(struct shash_desc *desc, const u8 *data,
- unsigned int len, u8 *out, sha1_transform_fn *sha1_xform)
+ unsigned int len, u8 *out, sha1_block_fn *sha1_xform)
{
if (!irq_fpu_usable())
return crypto_sha1_finup(desc, data, len, out);
kernel_fpu_begin();
if (len)
- sha1_base_do_update(desc, data, len,
- (sha1_block_fn *)sha1_xform);
- sha1_base_do_finalize(desc, (sha1_block_fn *)sha1_xform);
+ sha1_base_do_update(desc, data, len, sha1_xform);
+ sha1_base_do_finalize(desc, sha1_xform);
kernel_fpu_end();
return sha1_base_finish(desc, out);
}
-asmlinkage void sha1_transform_ssse3(u32 *digest, const char *data,
- unsigned int rounds);
+asmlinkage void sha1_transform_ssse3(struct sha1_state *state,
+ const u8 *data, int blocks);
static int sha1_ssse3_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
- return sha1_update(desc, data, len,
- (sha1_transform_fn *) sha1_transform_ssse3);
+ return sha1_update(desc, data, len, sha1_transform_ssse3);
}
static int sha1_ssse3_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
- return sha1_finup(desc, data, len, out,
- (sha1_transform_fn *) sha1_transform_ssse3);
+ return sha1_finup(desc, data, len, out, sha1_transform_ssse3);
}
/* Add padding and return the message digest. */
@@ -123,21 +119,19 @@ static void unregister_sha1_ssse3(void)
}
#ifdef CONFIG_AS_AVX
-asmlinkage void sha1_transform_avx(u32 *digest, const char *data,
- unsigned int rounds);
+asmlinkage void sha1_transform_avx(struct sha1_state *state,
+ const u8 *data, int blocks);
static int sha1_avx_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
- return sha1_update(desc, data, len,
- (sha1_transform_fn *) sha1_transform_avx);
+ return sha1_update(desc, data, len, sha1_transform_avx);
}
static int sha1_avx_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
- return sha1_finup(desc, data, len, out,
- (sha1_transform_fn *) sha1_transform_avx);
+ return sha1_finup(desc, data, len, out, sha1_transform_avx);
}
static int sha1_avx_final(struct shash_desc *desc, u8 *out)
@@ -194,8 +188,8 @@ static inline void unregister_sha1_avx(void) { }
#if defined(CONFIG_AS_AVX2) && (CONFIG_AS_AVX)
#define SHA1_AVX2_BLOCK_OPTSIZE 4 /* optimal 4*64 bytes of SHA1 blocks */
-asmlinkage void sha1_transform_avx2(u32 *digest, const char *data,
- unsigned int rounds);
+asmlinkage void sha1_transform_avx2(struct sha1_state *state,
+ const u8 *data, int blocks);
static bool avx2_usable(void)
{
@@ -207,28 +201,26 @@ static bool avx2_usable(void)
return false;
}
-static void sha1_apply_transform_avx2(u32 *digest, const char *data,
- unsigned int rounds)
+static void sha1_apply_transform_avx2(struct sha1_state *state,
+ const u8 *data, int blocks)
{
/* Select the optimal transform based on data block size */
- if (rounds >= SHA1_AVX2_BLOCK_OPTSIZE)
- sha1_transform_avx2(digest, data, rounds);
+ if (blocks >= SHA1_AVX2_BLOCK_OPTSIZE)
+ sha1_transform_avx2(state, data, blocks);
else
- sha1_transform_avx(digest, data, rounds);
+ sha1_transform_avx(state, data, blocks);
}
static int sha1_avx2_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
- return sha1_update(desc, data, len,
- (sha1_transform_fn *) sha1_apply_transform_avx2);
+ return sha1_update(desc, data, len, sha1_apply_transform_avx2);
}
static int sha1_avx2_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
- return sha1_finup(desc, data, len, out,
- (sha1_transform_fn *) sha1_apply_transform_avx2);
+ return sha1_finup(desc, data, len, out, sha1_apply_transform_avx2);
}
static int sha1_avx2_final(struct shash_desc *desc, u8 *out)
@@ -271,21 +263,19 @@ static inline void unregister_sha1_avx2(void) { }
#endif
#ifdef CONFIG_AS_SHA1_NI
-asmlinkage void sha1_ni_transform(u32 *digest, const char *data,
- unsigned int rounds);
+asmlinkage void sha1_ni_transform(struct sha1_state *digest, const u8 *data,
+ int rounds);
static int sha1_ni_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
- return sha1_update(desc, data, len,
- (sha1_transform_fn *) sha1_ni_transform);
+ return sha1_update(desc, data, len, sha1_ni_transform);
}
static int sha1_ni_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
- return sha1_finup(desc, data, len, out,
- (sha1_transform_fn *) sha1_ni_transform);
+ return sha1_finup(desc, data, len, out, sha1_ni_transform);
}
static int sha1_ni_final(struct shash_desc *desc, u8 *out)
diff --git a/arch/x86/crypto/sha256-avx-asm.S b/arch/x86/crypto/sha256-avx-asm.S
index 001bbcf..b6e037e 100644
--- a/arch/x86/crypto/sha256-avx-asm.S
+++ b/arch/x86/crypto/sha256-avx-asm.S
@@ -341,8 +341,8 @@
.endm
########################################################################
-## void sha256_transform_avx(void *input_data, UINT32 digest[8], UINT64 num_blks)
-## arg 1 : pointer to digest
+## void sha256_transform_avx(state sha256_state *state, const u8 *data, int blocks)
+## arg 1 : pointer to state
## arg 2 : pointer to input data
## arg 3 : Num blocks
########################################################################
diff --git a/arch/x86/crypto/sha256-avx2-asm.S b/arch/x86/crypto/sha256-avx2-asm.S
index 1420db1..2e6ebc9 100644
--- a/arch/x86/crypto/sha256-avx2-asm.S
+++ b/arch/x86/crypto/sha256-avx2-asm.S
@@ -520,8 +520,8 @@
.endm
########################################################################
-## void sha256_transform_rorx(void *input_data, UINT32 digest[8], UINT64 num_blks)
-## arg 1 : pointer to digest
+## void sha256_transform_rorx(struct sha256_state *state, const u8 *data, int blocks)
+## arg 1 : pointer to state
## arg 2 : pointer to input data
## arg 3 : Num blocks
########################################################################
diff --git a/arch/x86/crypto/sha256-ssse3-asm.S b/arch/x86/crypto/sha256-ssse3-asm.S
index c6c05ed..ab7d9f0 100644
--- a/arch/x86/crypto/sha256-ssse3-asm.S
+++ b/arch/x86/crypto/sha256-ssse3-asm.S
@@ -347,8 +347,10 @@
.endm
########################################################################
-## void sha256_transform_ssse3(void *input_data, UINT32 digest[8], UINT64 num_blks)
-## arg 1 : pointer to digest
+## void sha256_transform_ssse3(struct sha256_state *state, const u8 *data,
+## int blocks);
+## arg 1 : pointer to state
+## (struct sha256_state is assumed to begin with u32 state[8])
## arg 2 : pointer to input data
## arg 3 : Num blocks
########################################################################
diff --git a/arch/x86/crypto/sha256_ssse3_glue.c b/arch/x86/crypto/sha256_ssse3_glue.c
index 773a873..2251b62 100644
--- a/arch/x86/crypto/sha256_ssse3_glue.c
+++ b/arch/x86/crypto/sha256_ssse3_glue.c
@@ -40,12 +40,11 @@
#include <asm/fpu/api.h>
#include <linux/string.h>
-asmlinkage void sha256_transform_ssse3(u32 *digest, const char *data,
- u64 rounds);
-typedef void (sha256_transform_fn)(u32 *digest, const char *data, u64 rounds);
+asmlinkage void sha256_transform_ssse3(struct sha256_state *state,
+ const u8 *data, int blocks);
-static int sha256_update(struct shash_desc *desc, const u8 *data,
- unsigned int len, sha256_transform_fn *sha256_xform)
+static int _sha256_update(struct shash_desc *desc, const u8 *data,
+ unsigned int len, sha256_block_fn *sha256_xform)
{
struct sha256_state *sctx = shash_desc_ctx(desc);
@@ -53,28 +52,29 @@ static int sha256_update(struct shash_desc *desc, const u8 *data,
(sctx->count % SHA256_BLOCK_SIZE) + len < SHA256_BLOCK_SIZE)
return crypto_sha256_update(desc, data, len);
- /* make sure casting to sha256_block_fn() is safe */
+ /*
+ * Make sure struct sha256_state begins directly with the SHA256
+ * 256-bit internal state, as this is what the asm functions expect.
+ */
BUILD_BUG_ON(offsetof(struct sha256_state, state) != 0);
kernel_fpu_begin();
- sha256_base_do_update(desc, data, len,
- (sha256_block_fn *)sha256_xform);
+ sha256_base_do_update(desc, data, len, sha256_xform);
kernel_fpu_end();
return 0;
}
static int sha256_finup(struct shash_desc *desc, const u8 *data,
- unsigned int len, u8 *out, sha256_transform_fn *sha256_xform)
+ unsigned int len, u8 *out, sha256_block_fn *sha256_xform)
{
if (!irq_fpu_usable())
return crypto_sha256_finup(desc, data, len, out);
kernel_fpu_begin();
if (len)
- sha256_base_do_update(desc, data, len,
- (sha256_block_fn *)sha256_xform);
- sha256_base_do_finalize(desc, (sha256_block_fn *)sha256_xform);
+ sha256_base_do_update(desc, data, len, sha256_xform);
+ sha256_base_do_finalize(desc, sha256_xform);
kernel_fpu_end();
return sha256_base_finish(desc, out);
@@ -83,7 +83,7 @@ static int sha256_finup(struct shash_desc *desc, const u8 *data,
static int sha256_ssse3_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
- return sha256_update(desc, data, len, sha256_transform_ssse3);
+ return _sha256_update(desc, data, len, sha256_transform_ssse3);
}
static int sha256_ssse3_finup(struct shash_desc *desc, const u8 *data,
@@ -144,13 +144,13 @@ static void unregister_sha256_ssse3(void)
}
#ifdef CONFIG_AS_AVX
-asmlinkage void sha256_transform_avx(u32 *digest, const char *data,
- u64 rounds);
+asmlinkage void sha256_transform_avx(struct sha256_state *state,
+ const u8 *data, int blocks);
static int sha256_avx_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
- return sha256_update(desc, data, len, sha256_transform_avx);
+ return _sha256_update(desc, data, len, sha256_transform_avx);
}
static int sha256_avx_finup(struct shash_desc *desc, const u8 *data,
@@ -226,13 +226,13 @@ static inline void unregister_sha256_avx(void) { }
#endif
#if defined(CONFIG_AS_AVX2) && defined(CONFIG_AS_AVX)
-asmlinkage void sha256_transform_rorx(u32 *digest, const char *data,
- u64 rounds);
+asmlinkage void sha256_transform_rorx(struct sha256_state *state,
+ const u8 *data, int blocks);
static int sha256_avx2_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
- return sha256_update(desc, data, len, sha256_transform_rorx);
+ return _sha256_update(desc, data, len, sha256_transform_rorx);
}
static int sha256_avx2_finup(struct shash_desc *desc, const u8 *data,
@@ -306,13 +306,13 @@ static inline void unregister_sha256_avx2(void) { }
#endif
#ifdef CONFIG_AS_SHA256_NI
-asmlinkage void sha256_ni_transform(u32 *digest, const char *data,
- u64 rounds); /*unsigned int rounds);*/
+asmlinkage void sha256_ni_transform(struct sha256_state *digest,
+ const u8 *data, int rounds);
static int sha256_ni_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
- return sha256_update(desc, data, len, sha256_ni_transform);
+ return _sha256_update(desc, data, len, sha256_ni_transform);
}
static int sha256_ni_finup(struct shash_desc *desc, const u8 *data,
diff --git a/arch/x86/crypto/sha512-avx-asm.S b/arch/x86/crypto/sha512-avx-asm.S
index 39235fe..8f6fe09 100644
--- a/arch/x86/crypto/sha512-avx-asm.S
+++ b/arch/x86/crypto/sha512-avx-asm.S
@@ -271,11 +271,12 @@
.endm
########################################################################
-# void sha512_transform_avx(void* D, const void* M, u64 L)
-# Purpose: Updates the SHA512 digest stored at D with the message stored in M.
-# The size of the message pointed to by M must be an integer multiple of SHA512
-# message blocks.
-# L is the message length in SHA512 blocks
+# void sha512_transform_avx(sha512_state *state, const u8 *data, int blocks)
+# Purpose: Updates the SHA512 digest stored at "state" with the message
+# stored in "data".
+# The size of the message pointed to by "data" must be an integer multiple
+# of SHA512 message blocks.
+# "blocks" is the message length in SHA512 blocks
########################################################################
ENTRY(sha512_transform_avx)
cmp $0, msglen
diff --git a/arch/x86/crypto/sha512-avx2-asm.S b/arch/x86/crypto/sha512-avx2-asm.S
index b16d560..43d4d64 100644
--- a/arch/x86/crypto/sha512-avx2-asm.S
+++ b/arch/x86/crypto/sha512-avx2-asm.S
@@ -563,11 +563,12 @@
.endm
########################################################################
-# void sha512_transform_rorx(void* D, const void* M, uint64_t L)#
-# Purpose: Updates the SHA512 digest stored at D with the message stored in M.
-# The size of the message pointed to by M must be an integer multiple of SHA512
-# message blocks.
-# L is the message length in SHA512 blocks
+# void sha512_transform_rorx(sha512_state *state, const u8 *data, int blocks)
+# Purpose: Updates the SHA512 digest stored at "state" with the message
+# stored in "data".
+# The size of the message pointed to by "data" must be an integer multiple
+# of SHA512 message blocks.
+# "blocks" is the message length in SHA512 blocks
########################################################################
ENTRY(sha512_transform_rorx)
# Allocate Stack Space
diff --git a/arch/x86/crypto/sha512-ssse3-asm.S b/arch/x86/crypto/sha512-ssse3-asm.S
index 66bbd90..46da903 100644
--- a/arch/x86/crypto/sha512-ssse3-asm.S
+++ b/arch/x86/crypto/sha512-ssse3-asm.S
@@ -269,11 +269,14 @@
.endm
########################################################################
-# void sha512_transform_ssse3(void* D, const void* M, u64 L)#
-# Purpose: Updates the SHA512 digest stored at D with the message stored in M.
-# The size of the message pointed to by M must be an integer multiple of SHA512
-# message blocks.
-# L is the message length in SHA512 blocks.
+## void sha512_transform_ssse3(struct sha512_state *state, const u8 *data,
+## int blocks);
+# (struct sha512_state is assumed to begin with u64 state[8])
+# Purpose: Updates the SHA512 digest stored at "state" with the message
+# stored in "data".
+# The size of the message pointed to by "data" must be an integer multiple
+# of SHA512 message blocks.
+# "blocks" is the message length in SHA512 blocks.
########################################################################
ENTRY(sha512_transform_ssse3)
diff --git a/arch/x86/crypto/sha512_ssse3_glue.c b/arch/x86/crypto/sha512_ssse3_glue.c
index f1b811b..3403816 100644
--- a/arch/x86/crypto/sha512_ssse3_glue.c
+++ b/arch/x86/crypto/sha512_ssse3_glue.c
@@ -39,13 +39,11 @@
#include <linux/string.h>
-asmlinkage void sha512_transform_ssse3(u64 *digest, const char *data,
- u64 rounds);
-
-typedef void (sha512_transform_fn)(u64 *digest, const char *data, u64 rounds);
+asmlinkage void sha512_transform_ssse3(struct sha512_state *state,
+ const u8 *data, int blocks);
static int sha512_update(struct shash_desc *desc, const u8 *data,
- unsigned int len, sha512_transform_fn *sha512_xform)
+ unsigned int len, sha512_block_fn *sha512_xform)
{
struct sha512_state *sctx = shash_desc_ctx(desc);
@@ -53,28 +51,29 @@ static int sha512_update(struct shash_desc *desc, const u8 *data,
(sctx->count[0] % SHA512_BLOCK_SIZE) + len < SHA512_BLOCK_SIZE)
return crypto_sha512_update(desc, data, len);
- /* make sure casting to sha512_block_fn() is safe */
+ /*
+ * Make sure struct sha512_state begins directly with the SHA512
+ * 512-bit internal state, as this is what the asm functions expect.
+ */
BUILD_BUG_ON(offsetof(struct sha512_state, state) != 0);
kernel_fpu_begin();
- sha512_base_do_update(desc, data, len,
- (sha512_block_fn *)sha512_xform);
+ sha512_base_do_update(desc, data, len, sha512_xform);
kernel_fpu_end();
return 0;
}
static int sha512_finup(struct shash_desc *desc, const u8 *data,
- unsigned int len, u8 *out, sha512_transform_fn *sha512_xform)
+ unsigned int len, u8 *out, sha512_block_fn *sha512_xform)
{
if (!irq_fpu_usable())
return crypto_sha512_finup(desc, data, len, out);
kernel_fpu_begin();
if (len)
- sha512_base_do_update(desc, data, len,
- (sha512_block_fn *)sha512_xform);
- sha512_base_do_finalize(desc, (sha512_block_fn *)sha512_xform);
+ sha512_base_do_update(desc, data, len, sha512_xform);
+ sha512_base_do_finalize(desc, sha512_xform);
kernel_fpu_end();
return sha512_base_finish(desc, out);
@@ -144,8 +143,8 @@ static void unregister_sha512_ssse3(void)
}
#ifdef CONFIG_AS_AVX
-asmlinkage void sha512_transform_avx(u64 *digest, const char *data,
- u64 rounds);
+asmlinkage void sha512_transform_avx(struct sha512_state *state,
+ const u8 *data, int blocks);
static bool avx_usable(void)
{
if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL)) {
@@ -225,8 +224,8 @@ static inline void unregister_sha512_avx(void) { }
#endif
#if defined(CONFIG_AS_AVX2) && defined(CONFIG_AS_AVX)
-asmlinkage void sha512_transform_rorx(u64 *digest, const char *data,
- u64 rounds);
+asmlinkage void sha512_transform_rorx(struct sha512_state *state,
+ const u8 *data, int blocks);
static int sha512_avx2_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
diff --git a/arch/x86/entry/syscall_32.c b/arch/x86/entry/syscall_32.c
index aa3336a..7d17b3a 100644
--- a/arch/x86/entry/syscall_32.c
+++ b/arch/x86/entry/syscall_32.c
@@ -10,13 +10,11 @@
#ifdef CONFIG_IA32_EMULATION
/* On X86_64, we use struct pt_regs * to pass parameters to syscalls */
#define __SYSCALL_I386(nr, sym, qual) extern asmlinkage long sym(const struct pt_regs *);
-
-/* this is a lie, but it does not hurt as sys_ni_syscall just returns -EINVAL */
-extern asmlinkage long sys_ni_syscall(const struct pt_regs *);
-
+#define __sys_ni_syscall __ia32_sys_ni_syscall
#else /* CONFIG_IA32_EMULATION */
#define __SYSCALL_I386(nr, sym, qual) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
extern asmlinkage long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
+#define __sys_ni_syscall sys_ni_syscall
#endif /* CONFIG_IA32_EMULATION */
#include <asm/syscalls_32.h>
@@ -29,6 +27,6 @@ __visible const sys_call_ptr_t ia32_sys_call_table[__NR_syscall_compat_max+1] =
* Smells like a compiler bug -- it doesn't work
* when the & below is removed.
*/
- [0 ... __NR_syscall_compat_max] = &sys_ni_syscall,
+ [0 ... __NR_syscall_compat_max] = &__sys_ni_syscall,
#include <asm/syscalls_32.h>
};
diff --git a/arch/x86/entry/syscall_64.c b/arch/x86/entry/syscall_64.c
index d5252bc..eb82ad9 100644
--- a/arch/x86/entry/syscall_64.c
+++ b/arch/x86/entry/syscall_64.c
@@ -4,11 +4,17 @@
#include <linux/linkage.h>
#include <linux/sys.h>
#include <linux/cache.h>
+#include <linux/syscalls.h>
#include <asm/asm-offsets.h>
#include <asm/syscall.h>
-/* this is a lie, but it does not hurt as sys_ni_syscall just returns -EINVAL */
-extern asmlinkage long sys_ni_syscall(const struct pt_regs *);
+extern asmlinkage long sys_ni_syscall(void);
+
+SYSCALL_DEFINE0(ni_syscall)
+{
+ return sys_ni_syscall();
+}
+
#define __SYSCALL_64(nr, sym, qual) extern asmlinkage long sym(const struct pt_regs *);
#include <asm/syscalls_64.h>
#undef __SYSCALL_64
@@ -20,6 +26,6 @@ asmlinkage const sys_call_ptr_t sys_call_table[__NR_syscall_max+1] = {
* Smells like a compiler bug -- it doesn't work
* when the & below is removed.
*/
- [0 ... __NR_syscall_max] = &sys_ni_syscall,
+ [0 ... __NR_syscall_max] = &__x64_sys_ni_syscall,
#include <asm/syscalls_64.h>
};
diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl
index 3cf7b53..300e801 100644
--- a/arch/x86/entry/syscalls/syscall_32.tbl
+++ b/arch/x86/entry/syscalls/syscall_32.tbl
@@ -124,7 +124,7 @@
110 i386 iopl sys_iopl __ia32_sys_iopl
111 i386 vhangup sys_vhangup __ia32_sys_vhangup
112 i386 idle
-113 i386 vm86old sys_vm86old sys_ni_syscall
+113 i386 vm86old sys_vm86old __ia32_sys_ni_syscall
114 i386 wait4 sys_wait4 __ia32_compat_sys_wait4
115 i386 swapoff sys_swapoff __ia32_sys_swapoff
116 i386 sysinfo sys_sysinfo __ia32_compat_sys_sysinfo
@@ -177,7 +177,7 @@
163 i386 mremap sys_mremap __ia32_sys_mremap
164 i386 setresuid sys_setresuid16 __ia32_sys_setresuid16
165 i386 getresuid sys_getresuid16 __ia32_sys_getresuid16
-166 i386 vm86 sys_vm86 sys_ni_syscall
+166 i386 vm86 sys_vm86 __ia32_sys_ni_syscall
167 i386 query_module
168 i386 poll sys_poll __ia32_sys_poll
169 i386 nfsservctl
@@ -398,3 +398,5 @@
384 i386 arch_prctl sys_arch_prctl __ia32_compat_sys_arch_prctl
385 i386 io_pgetevents sys_io_pgetevents __ia32_compat_sys_io_pgetevents
386 i386 rseq sys_rseq __ia32_sys_rseq
+424 i386 pidfd_send_signal sys_pidfd_send_signal __ia32_sys_pidfd_send_signal
+434 i386 pidfd_open sys_pidfd_open __ia32_sys_pidfd_open
diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
index f0b1709..bbfc6d4 100644
--- a/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/arch/x86/entry/syscalls/syscall_64.tbl
@@ -343,6 +343,8 @@
332 common statx __x64_sys_statx
333 common io_pgetevents __x64_sys_io_pgetevents
334 common rseq __x64_sys_rseq
+424 common pidfd_send_signal __x64_sys_pidfd_send_signal
+434 common pidfd_open __x64_sys_pidfd_open
#
# x32-specific system call numbers start at 512 to avoid cache impact
diff --git a/arch/x86/entry/vdso/Makefile b/arch/x86/entry/vdso/Makefile
index 5bfe224..cd7f6d9 100644
--- a/arch/x86/entry/vdso/Makefile
+++ b/arch/x86/entry/vdso/Makefile
@@ -3,7 +3,12 @@
# Building vDSO images for x86.
#
-KBUILD_CFLAGS += $(DISABLE_LTO)
+# Absolute relocation type $(ARCH_REL_TYPE_ABS) needs to be defined before
+# the inclusion of generic Makefile.
+ARCH_REL_TYPE_ABS := R_X86_64_JUMP_SLOT|R_X86_64_GLOB_DAT|R_X86_64_RELATIVE|
+ARCH_REL_TYPE_ABS += R_386_GLOB_DAT|R_386_JMP_SLOT|R_386_RELATIVE
+include $(srctree)/lib/vdso/Makefile
+
KASAN_SANITIZE := n
UBSAN_SANITIZE := n
OBJECT_FILES_NON_STANDARD := y
@@ -50,7 +55,7 @@
-z max-page-size=4096
$(obj)/vdso64.so.dbg: $(obj)/vdso.lds $(vobjs) FORCE
- $(call if_changed,vdso)
+ $(call if_changed,vdso_and_check)
HOST_EXTRACFLAGS += -I$(srctree)/tools/include -I$(srctree)/include/uapi -I$(srctree)/arch/$(SUBARCH)/include/uapi
hostprogs-y += vdso2c
@@ -68,7 +73,7 @@
CFL := $(PROFILING) -mcmodel=small -fPIC -O2 -fasynchronous-unwind-tables -m64 \
$(filter -g%,$(KBUILD_CFLAGS)) $(call cc-option, -fno-stack-protector) \
-fno-omit-frame-pointer -foptimize-sibling-calls \
- -DDISABLE_BRANCH_PROFILING -DBUILD_VDSO
+ -DDISABLE_BRANCH_PROFILING -DBUILD_VDSO $(DISABLE_LTO)
ifdef CONFIG_RETPOLINE
ifneq ($(RETPOLINE_VDSO_CFLAGS),)
@@ -76,7 +81,7 @@
endif
endif
-$(vobjs): KBUILD_CFLAGS := $(filter-out $(GCC_PLUGINS_CFLAGS) $(RETPOLINE_CFLAGS),$(KBUILD_CFLAGS)) $(CFL)
+$(vobjs): KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_LTO) $(GCC_PLUGINS_CFLAGS) $(RETPOLINE_CFLAGS),$(KBUILD_CFLAGS)) $(CFL)
#
# vDSO code runs in userspace and -pg doesn't help with profiling anyway.
@@ -120,7 +125,7 @@
$(call if_changed,objcopy)
$(obj)/vdsox32.so.dbg: $(obj)/vdsox32.lds $(vobjx32s) FORCE
- $(call if_changed,vdso)
+ $(call if_changed,vdso_and_check)
CPPFLAGS_vdso32.lds = $(CPPFLAGS_vdso.lds)
VDSO_LDFLAGS_vdso32.lds = -m elf_i386 -soname linux-gate.so.1
@@ -139,6 +144,9 @@
KBUILD_CFLAGS_32 := $(filter-out -mfentry,$(KBUILD_CFLAGS_32))
KBUILD_CFLAGS_32 := $(filter-out $(GCC_PLUGINS_CFLAGS),$(KBUILD_CFLAGS_32))
KBUILD_CFLAGS_32 := $(filter-out $(RETPOLINE_CFLAGS),$(KBUILD_CFLAGS_32))
+KBUILD_CFLAGS_32 := $(filter-out $(LTO_CFLAGS),$(KBUILD_CFLAGS_32))
+KBUILD_CFLAGS_32 := $(filter-out $(CFI_CFLAGS),$(KBUILD_CFLAGS_32))
+KBUILD_CFLAGS_32 := $(filter-out $(CC_FLAGS_LTO),$(KBUILD_CFLAGS_32))
KBUILD_CFLAGS_32 += -m32 -msoft-float -mregparm=0 -fpic
KBUILD_CFLAGS_32 += $(call cc-option, -fno-stack-protector)
KBUILD_CFLAGS_32 += $(call cc-option, -foptimize-sibling-calls)
@@ -159,7 +167,7 @@
$(obj)/vdso32/note.o \
$(obj)/vdso32/system_call.o \
$(obj)/vdso32/sigreturn.o
- $(call if_changed,vdso)
+ $(call if_changed,vdso_and_check)
#
# The DSO images are built using a special linker script.
@@ -175,6 +183,9 @@
-Bsymbolic
GCOV_PROFILE := n
+quiet_cmd_vdso_and_check = VDSO $@
+ cmd_vdso_and_check = $(cmd_vdso); $(cmd_vdso_check)
+
#
# Install the unstripped copies of vdso*.so. If our toolchain supports
# build-id, install .build-id links as well.
diff --git a/arch/x86/entry/vdso/vclock_gettime.c b/arch/x86/entry/vdso/vclock_gettime.c
index 8a88e73..54157e8 100644
--- a/arch/x86/entry/vdso/vclock_gettime.c
+++ b/arch/x86/entry/vdso/vclock_gettime.c
@@ -1,341 +1,84 @@
/*
- * Copyright 2006 Andi Kleen, SUSE Labs.
- * Subject to the GNU Public License, v.2
- *
* Fast user context implementation of clock_gettime, gettimeofday, and time.
*
+ * Copyright 2006 Andi Kleen, SUSE Labs.
+ * Copyright 2019 ARM Limited
+ *
* 32 Bit compat layer by Stefani Seibold <stefani@seibold.net>
* sponsored by Rohde & Schwarz GmbH & Co. KG Munich/Germany
- *
- * The code should have no internal unresolved relocations.
- * Check with readelf after changing.
*/
-
-#include <uapi/linux/time.h>
-#include <asm/vgtod.h>
-#include <asm/vvar.h>
-#include <asm/unistd.h>
-#include <asm/msr.h>
-#include <asm/pvclock.h>
-#include <asm/mshyperv.h>
-#include <linux/math64.h>
#include <linux/time.h>
#include <linux/kernel.h>
+#include <linux/types.h>
-#define gtod (&VVAR(vsyscall_gtod_data))
+#include "../../../../lib/vdso/gettimeofday.c"
-extern int __vdso_clock_gettime(clockid_t clock, struct timespec *ts);
-extern int __vdso_gettimeofday(struct timeval *tv, struct timezone *tz);
+extern int __vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz);
extern time_t __vdso_time(time_t *t);
-#ifdef CONFIG_PARAVIRT_CLOCK
-extern u8 pvclock_page[PAGE_SIZE]
- __attribute__((visibility("hidden")));
-#endif
-
-#ifdef CONFIG_HYPERV_TSCPAGE
-extern u8 hvclock_page[PAGE_SIZE]
- __attribute__((visibility("hidden")));
-#endif
-
-#ifndef BUILD_VDSO32
-
-notrace static long vdso_fallback_gettime(long clock, struct timespec *ts)
+int __vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz)
{
- long ret;
- asm ("syscall" : "=a" (ret), "=m" (*ts) :
- "0" (__NR_clock_gettime), "D" (clock), "S" (ts) :
- "memory", "rcx", "r11");
- return ret;
+ return __cvdso_gettimeofday(tv, tz);
}
-notrace static long vdso_fallback_gtod(struct timeval *tv, struct timezone *tz)
-{
- long ret;
-
- asm ("syscall" : "=a" (ret), "=m" (*tv), "=m" (*tz) :
- "0" (__NR_gettimeofday), "D" (tv), "S" (tz) :
- "memory", "rcx", "r11");
- return ret;
-}
-
-
-#else
-
-notrace static long vdso_fallback_gettime(long clock, struct timespec *ts)
-{
- long ret;
-
- asm (
- "mov %%ebx, %%edx \n"
- "mov %[clock], %%ebx \n"
- "call __kernel_vsyscall \n"
- "mov %%edx, %%ebx \n"
- : "=a" (ret), "=m" (*ts)
- : "0" (__NR_clock_gettime), [clock] "g" (clock), "c" (ts)
- : "memory", "edx");
- return ret;
-}
-
-notrace static long vdso_fallback_gtod(struct timeval *tv, struct timezone *tz)
-{
- long ret;
-
- asm (
- "mov %%ebx, %%edx \n"
- "mov %[tv], %%ebx \n"
- "call __kernel_vsyscall \n"
- "mov %%edx, %%ebx \n"
- : "=a" (ret), "=m" (*tv), "=m" (*tz)
- : "0" (__NR_gettimeofday), [tv] "g" (tv), "c" (tz)
- : "memory", "edx");
- return ret;
-}
-
-#endif
-
-#ifdef CONFIG_PARAVIRT_CLOCK
-static notrace const struct pvclock_vsyscall_time_info *get_pvti0(void)
-{
- return (const struct pvclock_vsyscall_time_info *)&pvclock_page;
-}
-
-static notrace u64 vread_pvclock(int *mode)
-{
- const struct pvclock_vcpu_time_info *pvti = &get_pvti0()->pvti;
- u64 ret;
- u64 last;
- u32 version;
-
- /*
- * Note: The kernel and hypervisor must guarantee that cpu ID
- * number maps 1:1 to per-CPU pvclock time info.
- *
- * Because the hypervisor is entirely unaware of guest userspace
- * preemption, it cannot guarantee that per-CPU pvclock time
- * info is updated if the underlying CPU changes or that that
- * version is increased whenever underlying CPU changes.
- *
- * On KVM, we are guaranteed that pvti updates for any vCPU are
- * atomic as seen by *all* vCPUs. This is an even stronger
- * guarantee than we get with a normal seqlock.
- *
- * On Xen, we don't appear to have that guarantee, but Xen still
- * supplies a valid seqlock using the version field.
- *
- * We only do pvclock vdso timing at all if
- * PVCLOCK_TSC_STABLE_BIT is set, and we interpret that bit to
- * mean that all vCPUs have matching pvti and that the TSC is
- * synced, so we can just look at vCPU 0's pvti.
- */
-
- do {
- version = pvclock_read_begin(pvti);
-
- if (unlikely(!(pvti->flags & PVCLOCK_TSC_STABLE_BIT))) {
- *mode = VCLOCK_NONE;
- return 0;
- }
-
- ret = __pvclock_read_cycles(pvti, rdtsc_ordered());
- } while (pvclock_read_retry(pvti, version));
-
- /* refer to vread_tsc() comment for rationale */
- last = gtod->cycle_last;
-
- if (likely(ret >= last))
- return ret;
-
- return last;
-}
-#endif
-#ifdef CONFIG_HYPERV_TSCPAGE
-static notrace u64 vread_hvclock(int *mode)
-{
- const struct ms_hyperv_tsc_page *tsc_pg =
- (const struct ms_hyperv_tsc_page *)&hvclock_page;
- u64 current_tick = hv_read_tsc_page(tsc_pg);
-
- if (current_tick != U64_MAX)
- return current_tick;
-
- *mode = VCLOCK_NONE;
- return 0;
-}
-#endif
-
-notrace static u64 vread_tsc(void)
-{
- u64 ret = (u64)rdtsc_ordered();
- u64 last = gtod->cycle_last;
-
- if (likely(ret >= last))
- return ret;
-
- /*
- * GCC likes to generate cmov here, but this branch is extremely
- * predictable (it's just a function of time and the likely is
- * very likely) and there's a data dependence, so force GCC
- * to generate a branch instead. I don't barrier() because
- * we don't actually need a barrier, and if this function
- * ever gets inlined it will generate worse code.
- */
- asm volatile ("");
- return last;
-}
-
-notrace static inline u64 vgetsns(int *mode)
-{
- u64 v;
- cycles_t cycles;
-
- if (gtod->vclock_mode == VCLOCK_TSC)
- cycles = vread_tsc();
-
- /*
- * For any memory-mapped vclock type, we need to make sure that gcc
- * doesn't cleverly hoist a load before the mode check. Otherwise we
- * might end up touching the memory-mapped page even if the vclock in
- * question isn't enabled, which will segfault. Hence the barriers.
- */
-#ifdef CONFIG_PARAVIRT_CLOCK
- else if (gtod->vclock_mode == VCLOCK_PVCLOCK) {
- barrier();
- cycles = vread_pvclock(mode);
- }
-#endif
-#ifdef CONFIG_HYPERV_TSCPAGE
- else if (gtod->vclock_mode == VCLOCK_HVCLOCK) {
- barrier();
- cycles = vread_hvclock(mode);
- }
-#endif
- else
- return 0;
- v = (cycles - gtod->cycle_last) & gtod->mask;
- return v * gtod->mult;
-}
-
-/* Code size doesn't matter (vdso is 4k anyway) and this is faster. */
-notrace static int __always_inline do_realtime(struct timespec *ts)
-{
- unsigned long seq;
- u64 ns;
- int mode;
-
- do {
- seq = gtod_read_begin(gtod);
- mode = gtod->vclock_mode;
- ts->tv_sec = gtod->wall_time_sec;
- ns = gtod->wall_time_snsec;
- ns += vgetsns(&mode);
- ns >>= gtod->shift;
- } while (unlikely(gtod_read_retry(gtod, seq)));
-
- ts->tv_sec += __iter_div_u64_rem(ns, NSEC_PER_SEC, &ns);
- ts->tv_nsec = ns;
-
- return mode;
-}
-
-notrace static int __always_inline do_monotonic(struct timespec *ts)
-{
- unsigned long seq;
- u64 ns;
- int mode;
-
- do {
- seq = gtod_read_begin(gtod);
- mode = gtod->vclock_mode;
- ts->tv_sec = gtod->monotonic_time_sec;
- ns = gtod->monotonic_time_snsec;
- ns += vgetsns(&mode);
- ns >>= gtod->shift;
- } while (unlikely(gtod_read_retry(gtod, seq)));
-
- ts->tv_sec += __iter_div_u64_rem(ns, NSEC_PER_SEC, &ns);
- ts->tv_nsec = ns;
-
- return mode;
-}
-
-notrace static void do_realtime_coarse(struct timespec *ts)
-{
- unsigned long seq;
- do {
- seq = gtod_read_begin(gtod);
- ts->tv_sec = gtod->wall_time_coarse_sec;
- ts->tv_nsec = gtod->wall_time_coarse_nsec;
- } while (unlikely(gtod_read_retry(gtod, seq)));
-}
-
-notrace static void do_monotonic_coarse(struct timespec *ts)
-{
- unsigned long seq;
- do {
- seq = gtod_read_begin(gtod);
- ts->tv_sec = gtod->monotonic_time_coarse_sec;
- ts->tv_nsec = gtod->monotonic_time_coarse_nsec;
- } while (unlikely(gtod_read_retry(gtod, seq)));
-}
-
-notrace int __vdso_clock_gettime(clockid_t clock, struct timespec *ts)
-{
- switch (clock) {
- case CLOCK_REALTIME:
- if (do_realtime(ts) == VCLOCK_NONE)
- goto fallback;
- break;
- case CLOCK_MONOTONIC:
- if (do_monotonic(ts) == VCLOCK_NONE)
- goto fallback;
- break;
- case CLOCK_REALTIME_COARSE:
- do_realtime_coarse(ts);
- break;
- case CLOCK_MONOTONIC_COARSE:
- do_monotonic_coarse(ts);
- break;
- default:
- goto fallback;
- }
-
- return 0;
-fallback:
- return vdso_fallback_gettime(clock, ts);
-}
-int clock_gettime(clockid_t, struct timespec *)
- __attribute__((weak, alias("__vdso_clock_gettime")));
-
-notrace int __vdso_gettimeofday(struct timeval *tv, struct timezone *tz)
-{
- if (likely(tv != NULL)) {
- if (unlikely(do_realtime((struct timespec *)tv) == VCLOCK_NONE))
- return vdso_fallback_gtod(tv, tz);
- tv->tv_usec /= 1000;
- }
- if (unlikely(tz != NULL)) {
- tz->tz_minuteswest = gtod->tz_minuteswest;
- tz->tz_dsttime = gtod->tz_dsttime;
- }
-
- return 0;
-}
-int gettimeofday(struct timeval *, struct timezone *)
+int gettimeofday(struct __kernel_old_timeval *, struct timezone *)
__attribute__((weak, alias("__vdso_gettimeofday")));
-/*
- * This will break when the xtime seconds get inaccurate, but that is
- * unlikely
- */
-notrace time_t __vdso_time(time_t *t)
+time_t __vdso_time(time_t *t)
{
- /* This is atomic on x86 so we don't need any locks. */
- time_t result = READ_ONCE(gtod->wall_time_sec);
-
- if (t)
- *t = result;
- return result;
+ return __cvdso_time(t);
}
-time_t time(time_t *t)
- __attribute__((weak, alias("__vdso_time")));
+
+time_t time(time_t *t) __attribute__((weak, alias("__vdso_time")));
+
+
+#if defined(CONFIG_X86_64) && !defined(BUILD_VDSO32_64)
+/* both 64-bit and x32 use these */
+extern int __vdso_clock_gettime(clockid_t clock, struct __kernel_timespec *ts);
+extern int __vdso_clock_getres(clockid_t clock, struct __kernel_timespec *res);
+
+int __vdso_clock_gettime(clockid_t clock, struct __kernel_timespec *ts)
+{
+ return __cvdso_clock_gettime(clock, ts);
+}
+
+int clock_gettime(clockid_t, struct __kernel_timespec *)
+ __attribute__((weak, alias("__vdso_clock_gettime")));
+
+int __vdso_clock_getres(clockid_t clock,
+ struct __kernel_timespec *res)
+{
+ return __cvdso_clock_getres(clock, res);
+}
+int clock_getres(clockid_t, struct __kernel_timespec *)
+ __attribute__((weak, alias("__vdso_clock_getres")));
+
+#else
+/* i386 only */
+extern int __vdso_clock_gettime(clockid_t clock, struct old_timespec32 *ts);
+extern int __vdso_clock_getres(clockid_t clock, struct old_timespec32 *res);
+
+int __vdso_clock_gettime(clockid_t clock, struct old_timespec32 *ts)
+{
+ return __cvdso_clock_gettime32(clock, ts);
+}
+
+int clock_gettime(clockid_t, struct old_timespec32 *)
+ __attribute__((weak, alias("__vdso_clock_gettime")));
+
+int __vdso_clock_gettime64(clockid_t clock, struct __kernel_timespec *ts)
+{
+ return __cvdso_clock_gettime(clock, ts);
+}
+
+int clock_gettime64(clockid_t, struct __kernel_timespec *)
+ __attribute__((weak, alias("__vdso_clock_gettime64")));
+
+int __vdso_clock_getres(clockid_t clock, struct old_timespec32 *res)
+{
+ return __cvdso_clock_getres_time32(clock, res);
+}
+
+int clock_getres(clockid_t, struct old_timespec32 *)
+ __attribute__((weak, alias("__vdso_clock_getres")));
+#endif
diff --git a/arch/x86/entry/vdso/vdso.lds.S b/arch/x86/entry/vdso/vdso.lds.S
index d3a2dce..36b644e 100644
--- a/arch/x86/entry/vdso/vdso.lds.S
+++ b/arch/x86/entry/vdso/vdso.lds.S
@@ -25,6 +25,8 @@
__vdso_getcpu;
time;
__vdso_time;
+ clock_getres;
+ __vdso_clock_getres;
local: *;
};
}
diff --git a/arch/x86/entry/vdso/vdso32/vdso32.lds.S b/arch/x86/entry/vdso/vdso32/vdso32.lds.S
index 422764a..c772099 100644
--- a/arch/x86/entry/vdso/vdso32/vdso32.lds.S
+++ b/arch/x86/entry/vdso/vdso32/vdso32.lds.S
@@ -26,6 +26,8 @@
__vdso_clock_gettime;
__vdso_gettimeofday;
__vdso_time;
+ __vdso_clock_getres;
+ __vdso_clock_gettime64;
};
LINUX_2.5 {
diff --git a/arch/x86/entry/vdso/vdsox32.lds.S b/arch/x86/entry/vdso/vdsox32.lds.S
index 05cd1c5..16a8050 100644
--- a/arch/x86/entry/vdso/vdsox32.lds.S
+++ b/arch/x86/entry/vdso/vdsox32.lds.S
@@ -21,6 +21,7 @@
__vdso_gettimeofday;
__vdso_getcpu;
__vdso_time;
+ __vdso_clock_getres;
local: *;
};
}
diff --git a/arch/x86/entry/vdso/vgetcpu.c b/arch/x86/entry/vdso/vgetcpu.c
index 8ec3d1f..edd214f 100644
--- a/arch/x86/entry/vdso/vgetcpu.c
+++ b/arch/x86/entry/vdso/vgetcpu.c
@@ -13,14 +13,7 @@
notrace long
__vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *unused)
{
- unsigned int p;
-
- p = __getcpu();
-
- if (cpu)
- *cpu = p & VGETCPU_CPU_MASK;
- if (node)
- *node = p >> 12;
+ vdso_read_cpunode(cpu, node);
return 0;
}
diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86/entry/vdso/vma.c
index 46caca4..3f9d43f 100644
--- a/arch/x86/entry/vdso/vma.c
+++ b/arch/x86/entry/vdso/vma.c
@@ -332,40 +332,6 @@ static __init int vdso_setup(char *s)
return 0;
}
__setup("vdso=", vdso_setup);
-#endif
-
-#ifdef CONFIG_X86_64
-static void vgetcpu_cpu_init(void *arg)
-{
- int cpu = smp_processor_id();
- struct desc_struct d = { };
- unsigned long node = 0;
-#ifdef CONFIG_NUMA
- node = cpu_to_node(cpu);
-#endif
- if (boot_cpu_has(X86_FEATURE_RDTSCP) || boot_cpu_has(X86_FEATURE_RDPID))
- write_rdtscp_aux((node << 12) | cpu);
-
- /*
- * Store cpu number in limit so that it can be loaded
- * quickly in user space in vgetcpu. (12 bits for the CPU
- * and 8 bits for the node)
- */
- d.limit0 = cpu | ((node & 0xf) << 12);
- d.limit1 = node >> 4;
- d.type = 5; /* RO data, expand down, accessed */
- d.dpl = 3; /* Visible to user code */
- d.s = 1; /* Not a system segment */
- d.p = 1; /* Present */
- d.d = 1; /* 32-bit */
-
- write_gdt_entry(get_cpu_gdt_rw(cpu), GDT_ENTRY_PER_CPU, &d, DESCTYPE_S);
-}
-
-static int vgetcpu_online(unsigned int cpu)
-{
- return smp_call_function_single(cpu, vgetcpu_cpu_init, NULL, 1);
-}
static int __init init_vdso(void)
{
@@ -375,9 +341,7 @@ static int __init init_vdso(void)
init_vdso_image(&vdso_image_x32);
#endif
- /* notifier priority > KVM */
- return cpuhp_setup_state(CPUHP_AP_X86_VDSO_VMA_ONLINE,
- "x86/vdso/vma:online", vgetcpu_online, NULL);
+ return 0;
}
subsys_initcall(init_vdso);
#endif /* CONFIG_X86_64 */
diff --git a/arch/x86/entry/vsyscall/Makefile b/arch/x86/entry/vsyscall/Makefile
index a9f4856..8312627 100644
--- a/arch/x86/entry/vsyscall/Makefile
+++ b/arch/x86/entry/vsyscall/Makefile
@@ -1,7 +1,5 @@
#
# Makefile for the x86 low level vsyscall code
#
-obj-y := vsyscall_gtod.o
-
obj-$(CONFIG_X86_VSYSCALL_EMULATION) += vsyscall_64.o vsyscall_emu_64.o
diff --git a/arch/x86/entry/vsyscall/vsyscall_gtod.c b/arch/x86/entry/vsyscall/vsyscall_gtod.c
deleted file mode 100644
index e1216dd..0000000
--- a/arch/x86/entry/vsyscall/vsyscall_gtod.c
+++ /dev/null
@@ -1,78 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (C) 2001 Andrea Arcangeli <andrea@suse.de> SuSE
- * Copyright 2003 Andi Kleen, SuSE Labs.
- *
- * Modified for x86 32 bit architecture by
- * Stefani Seibold <stefani@seibold.net>
- * sponsored by Rohde & Schwarz GmbH & Co. KG Munich/Germany
- *
- * Thanks to hpa@transmeta.com for some useful hint.
- * Special thanks to Ingo Molnar for his early experience with
- * a different vsyscall implementation for Linux/IA32 and for the name.
- *
- */
-
-#include <linux/timekeeper_internal.h>
-#include <asm/vgtod.h>
-#include <asm/vvar.h>
-
-int vclocks_used __read_mostly;
-
-DEFINE_VVAR(struct vsyscall_gtod_data, vsyscall_gtod_data);
-
-void update_vsyscall_tz(void)
-{
- vsyscall_gtod_data.tz_minuteswest = sys_tz.tz_minuteswest;
- vsyscall_gtod_data.tz_dsttime = sys_tz.tz_dsttime;
-}
-
-void update_vsyscall(struct timekeeper *tk)
-{
- int vclock_mode = tk->tkr_mono.clock->archdata.vclock_mode;
- struct vsyscall_gtod_data *vdata = &vsyscall_gtod_data;
-
- /* Mark the new vclock used. */
- BUILD_BUG_ON(VCLOCK_MAX >= 32);
- WRITE_ONCE(vclocks_used, READ_ONCE(vclocks_used) | (1 << vclock_mode));
-
- gtod_write_begin(vdata);
-
- /* copy vsyscall data */
- vdata->vclock_mode = vclock_mode;
- vdata->cycle_last = tk->tkr_mono.cycle_last;
- vdata->mask = tk->tkr_mono.mask;
- vdata->mult = tk->tkr_mono.mult;
- vdata->shift = tk->tkr_mono.shift;
-
- vdata->wall_time_sec = tk->xtime_sec;
- vdata->wall_time_snsec = tk->tkr_mono.xtime_nsec;
-
- vdata->monotonic_time_sec = tk->xtime_sec
- + tk->wall_to_monotonic.tv_sec;
- vdata->monotonic_time_snsec = tk->tkr_mono.xtime_nsec
- + ((u64)tk->wall_to_monotonic.tv_nsec
- << tk->tkr_mono.shift);
- while (vdata->monotonic_time_snsec >=
- (((u64)NSEC_PER_SEC) << tk->tkr_mono.shift)) {
- vdata->monotonic_time_snsec -=
- ((u64)NSEC_PER_SEC) << tk->tkr_mono.shift;
- vdata->monotonic_time_sec++;
- }
-
- vdata->wall_time_coarse_sec = tk->xtime_sec;
- vdata->wall_time_coarse_nsec = (long)(tk->tkr_mono.xtime_nsec >>
- tk->tkr_mono.shift);
-
- vdata->monotonic_time_coarse_sec =
- vdata->wall_time_coarse_sec + tk->wall_to_monotonic.tv_sec;
- vdata->monotonic_time_coarse_nsec =
- vdata->wall_time_coarse_nsec + tk->wall_to_monotonic.tv_nsec;
-
- while (vdata->monotonic_time_coarse_nsec >= NSEC_PER_SEC) {
- vdata->monotonic_time_coarse_nsec -= NSEC_PER_SEC;
- vdata->monotonic_time_coarse_sec++;
- }
-
- gtod_write_end(vdata);
-}
diff --git a/arch/x86/events/intel/bts.c b/arch/x86/events/intel/bts.c
index 510f946..5a1cd9c 100644
--- a/arch/x86/events/intel/bts.c
+++ b/arch/x86/events/intel/bts.c
@@ -563,9 +563,11 @@ static int bts_event_init(struct perf_event *event)
* Note that the default paranoia setting permits unprivileged
* users to profile the kernel.
*/
- if (event->attr.exclude_kernel && perf_paranoid_kernel() &&
- !capable(CAP_SYS_ADMIN))
- return -EACCES;
+ if (event->attr.exclude_kernel) {
+ ret = perf_allow_kernel(&event->attr);
+ if (ret)
+ return ret;
+ }
if (x86_add_exclusive(x86_lbr_exclusive_bts))
return -EBUSY;
diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index 2dd8b0d..0fc0208 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -3109,8 +3109,9 @@ static int intel_pmu_hw_config(struct perf_event *event)
if (x86_pmu.version < 3)
return -EINVAL;
- if (perf_paranoid_cpu() && !capable(CAP_SYS_ADMIN))
- return -EACCES;
+ ret = perf_allow_cpu(&event->attr);
+ if (ret)
+ return ret;
event->hw.config |= ARCH_PERFMON_EVENTSEL_ANY;
diff --git a/arch/x86/events/intel/p4.c b/arch/x86/events/intel/p4.c
index d32c0ee..4f9ac72 100644
--- a/arch/x86/events/intel/p4.c
+++ b/arch/x86/events/intel/p4.c
@@ -776,8 +776,9 @@ static int p4_validate_raw_event(struct perf_event *event)
* the user needs special permissions to be able to use it
*/
if (p4_ht_active() && p4_event_bind_map[v].shared) {
- if (perf_paranoid_cpu() && !capable(CAP_SYS_ADMIN))
- return -EACCES;
+ v = perf_allow_cpu(&event->attr);
+ if (v)
+ return v;
}
/* ESCR EventMask bits may be invalid */
diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index 513ba49..d8b7398 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -118,7 +118,7 @@ static int ia32_restore_sigcontext(struct pt_regs *regs,
return err;
}
-asmlinkage long sys32_sigreturn(void)
+asmlinkage long sys32_sigreturn(const struct pt_regs *__unused)
{
struct pt_regs *regs = current_pt_regs();
struct sigframe_ia32 __user *frame = (struct sigframe_ia32 __user *)(regs->sp-8);
@@ -144,7 +144,7 @@ asmlinkage long sys32_sigreturn(void)
return 0;
}
-asmlinkage long sys32_rt_sigreturn(void)
+asmlinkage long sys32_rt_sigreturn(const struct pt_regs *__unused)
{
struct pt_regs *regs = current_pt_regs();
struct rt_sigframe_ia32 __user *frame;
diff --git a/arch/x86/include/asm/clocksource.h b/arch/x86/include/asm/clocksource.h
index dc4cfc8..3f73dff 100644
--- a/arch/x86/include/asm/clocksource.h
+++ b/arch/x86/include/asm/clocksource.h
@@ -4,11 +4,7 @@
#ifndef _ASM_X86_CLOCKSOURCE_H
#define _ASM_X86_CLOCKSOURCE_H
-#define VCLOCK_NONE 0 /* No vDSO clock available. */
-#define VCLOCK_TSC 1 /* vDSO should use vread_tsc. */
-#define VCLOCK_PVCLOCK 2 /* vDSO should use vread_pvclock. */
-#define VCLOCK_HVCLOCK 3 /* vDSO should use vread_hvclock. */
-#define VCLOCK_MAX 3
+#include <asm/vdso/clocksource.h>
struct arch_clocksource_data {
int vclock_mode;
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
index 68889ac..5694825 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -146,9 +146,6 @@ extern void clear_cpu_cap(struct cpuinfo_x86 *c, unsigned int bit);
* Workaround for the sake of BPF compilation which utilizes kernel
* headers, but clang does not support ASM GOTO and fails the build.
*/
-#ifndef __BPF_TRACING__
-#warning "Compiler lacks ASM_GOTO support. Add -D __BPF_TRACING__ to your compiler arguments"
-#endif
#define static_cpu_has(bit) boot_cpu_has(bit)
diff --git a/arch/x86/include/asm/page_64_types.h b/arch/x86/include/asm/page_64_types.h
index 0b6352a..b99d497 100644
--- a/arch/x86/include/asm/page_64_types.h
+++ b/arch/x86/include/asm/page_64_types.h
@@ -7,11 +7,7 @@
#endif
#ifdef CONFIG_KASAN
-#ifdef CONFIG_KASAN_EXTRA
-#define KASAN_STACK_ORDER 2
-#else
#define KASAN_STACK_ORDER 1
-#endif
#else
#define KASAN_STACK_ORDER 0
#endif
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index cc4bb21..aa26fe0 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -24,6 +24,7 @@ struct vm86;
#include <asm/special_insns.h>
#include <asm/fpu/types.h>
#include <asm/unwind_hints.h>
+#include <asm/vdso/processor.h>
#include <linux/personality.h>
#include <linux/cache.h>
@@ -650,17 +651,6 @@ static inline unsigned int cpuid_edx(unsigned int op)
return edx;
}
-/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */
-static __always_inline void rep_nop(void)
-{
- asm volatile("rep; nop" ::: "memory");
-}
-
-static __always_inline void cpu_relax(void)
-{
- rep_nop();
-}
-
/*
* This function forces the icache and prefetched instruction stream to
* catch up with reality in two very specific cases:
diff --git a/arch/x86/include/asm/pvclock.h b/arch/x86/include/asm/pvclock.h
index b603368..19b695f 100644
--- a/arch/x86/include/asm/pvclock.h
+++ b/arch/x86/include/asm/pvclock.h
@@ -2,7 +2,7 @@
#ifndef _ASM_X86_PVCLOCK_H
#define _ASM_X86_PVCLOCK_H
-#include <linux/clocksource.h>
+#include <asm/clocksource.h>
#include <asm/pvclock-abi.h>
/* some helper functions for xen and kvm pv clock sources */
diff --git a/arch/x86/include/asm/sections.h b/arch/x86/include/asm/sections.h
index 4a911a3..dde9f92 100644
--- a/arch/x86/include/asm/sections.h
+++ b/arch/x86/include/asm/sections.h
@@ -6,7 +6,7 @@
#include <asm/extable.h>
extern char __brk_base[], __brk_limit[];
-extern struct exception_table_entry __stop___ex_table[];
+extern char __cfi_jt_start[], __cfi_jt_end[];
extern char __end_rodata_aligned[];
#if defined(CONFIG_X86_64)
diff --git a/arch/x86/include/asm/segment.h b/arch/x86/include/asm/segment.h
index e293c12..a314087 100644
--- a/arch/x86/include/asm/segment.h
+++ b/arch/x86/include/asm/segment.h
@@ -186,8 +186,7 @@
#define GDT_ENTRY_TLS_MIN 12
#define GDT_ENTRY_TLS_MAX 14
-/* Abused to load per CPU data from limit */
-#define GDT_ENTRY_PER_CPU 15
+#define GDT_ENTRY_CPUNODE 15
/*
* Number of entries in the GDT table:
@@ -207,7 +206,7 @@
#define __USER_DS (GDT_ENTRY_DEFAULT_USER_DS*8 + 3)
#define __USER32_DS __USER_DS
#define __USER_CS (GDT_ENTRY_DEFAULT_USER_CS*8 + 3)
-#define __PER_CPU_SEG (GDT_ENTRY_PER_CPU*8 + 3)
+#define __CPUNODE_SEG (GDT_ENTRY_CPUNODE*8 + 3)
#endif
@@ -225,6 +224,47 @@
#define GDT_ENTRY_TLS_ENTRIES 3
#define TLS_SIZE (GDT_ENTRY_TLS_ENTRIES* 8)
+#ifdef CONFIG_X86_64
+
+/* Bit size and mask of CPU number stored in the per CPU data (and TSC_AUX) */
+#define VDSO_CPUNODE_BITS 12
+#define VDSO_CPUNODE_MASK 0xfff
+
+#ifndef __ASSEMBLY__
+
+/* Helper functions to store/load CPU and node numbers */
+
+static inline unsigned long vdso_encode_cpunode(int cpu, unsigned long node)
+{
+ return (node << VDSO_CPUNODE_BITS) | cpu;
+}
+
+static inline void vdso_read_cpunode(unsigned *cpu, unsigned *node)
+{
+ unsigned int p;
+
+ /*
+ * Load CPU and node number from the GDT. LSL is faster than RDTSCP
+ * and works on all CPUs. This is volatile so that it orders
+ * correctly with respect to barrier() and to keep GCC from cleverly
+ * hoisting it out of the calling function.
+ *
+ * If RDPID is available, use it.
+ */
+ alternative_io ("lsl %[seg],%[p]",
+ ".byte 0xf3,0x0f,0xc7,0xf8", /* RDPID %eax/rax */
+ X86_FEATURE_RDPID,
+ [p] "=a" (p), [seg] "r" (__CPUNODE_SEG));
+
+ if (cpu)
+ *cpu = (p & VDSO_CPUNODE_MASK);
+ if (node)
+ *node = (p >> VDSO_CPUNODE_BITS);
+}
+
+#endif /* !__ASSEMBLY__ */
+#endif /* CONFIG_X86_64 */
+
#ifdef __KERNEL__
/*
diff --git a/arch/x86/include/asm/smap.h b/arch/x86/include/asm/smap.h
index db33330..6cfe431 100644
--- a/arch/x86/include/asm/smap.h
+++ b/arch/x86/include/asm/smap.h
@@ -58,6 +58,23 @@ static __always_inline void stac(void)
alternative("", __stringify(__ASM_STAC), X86_FEATURE_SMAP);
}
+static __always_inline unsigned long smap_save(void)
+{
+ unsigned long flags;
+
+ asm volatile (ALTERNATIVE("", "pushf; pop %0; " __stringify(__ASM_CLAC),
+ X86_FEATURE_SMAP)
+ : "=rm" (flags) : : "memory", "cc");
+
+ return flags;
+}
+
+static __always_inline void smap_restore(unsigned long flags)
+{
+ asm volatile (ALTERNATIVE("", "push %0; popf", X86_FEATURE_SMAP)
+ : : "g" (flags) : "memory", "cc");
+}
+
/* These macros can be used in asm() statements */
#define ASM_CLAC \
ALTERNATIVE("", __stringify(__ASM_CLAC), X86_FEATURE_SMAP)
@@ -69,6 +86,9 @@ static __always_inline void stac(void)
static inline void clac(void) { }
static inline void stac(void) { }
+static inline unsigned long smap_save(void) { return 0; }
+static inline void smap_restore(unsigned long flags) { }
+
#define ASM_CLAC
#define ASM_STAC
diff --git a/arch/x86/include/asm/syscall_wrapper.h b/arch/x86/include/asm/syscall_wrapper.h
index 90eb70d..3585d6a 100644
--- a/arch/x86/include/asm/syscall_wrapper.h
+++ b/arch/x86/include/asm/syscall_wrapper.h
@@ -6,6 +6,8 @@
#ifndef _ASM_X86_SYSCALL_WRAPPER_H
#define _ASM_X86_SYSCALL_WRAPPER_H
+struct pt_regs;
+
/* Mapping of registers to parameters for syscalls on x86-64 and x32 */
#define SC_X86_64_REGS_TO_ARGS(x, ...) \
__MAP(x,__SC_ARGS \
@@ -56,9 +58,15 @@
SYSCALL_ALIAS(__ia32_sys_##sname, __x64_sys_##sname); \
asmlinkage long __x64_sys_##sname(const struct pt_regs *__unused)
-#define COND_SYSCALL(name) \
- cond_syscall(__x64_sys_##name); \
- cond_syscall(__ia32_sys_##name)
+#define COND_SYSCALL(name) \
+ asmlinkage __weak long __x64_sys_##name(const struct pt_regs *__unused) \
+ { \
+ return sys_ni_syscall(); \
+ } \
+ asmlinkage __weak long __ia32_sys_##name(const struct pt_regs *__unused)\
+ { \
+ return sys_ni_syscall(); \
+ }
#define SYS_NI(name) \
SYSCALL_ALIAS(__x64_sys_##name, sys_ni_posix_timers); \
@@ -112,7 +120,11 @@
* kernel/time/posix-stubs.c to cover this case as well.
*/
#define COND_SYSCALL_COMPAT(name) \
- cond_syscall(__ia32_compat_sys_##name); \
+ asmlinkage __weak long __ia32_compat_sys_##name( \
+ const struct pt_regs *__unused) \
+ { \
+ return sys_ni_syscall(); \
+ } \
cond_syscall(__x32_compat_sys_##name)
#define COMPAT_SYS_NI(name) \
@@ -182,15 +194,19 @@
* macros to work correctly.
*/
#ifndef SYSCALL_DEFINE0
-#define SYSCALL_DEFINE0(sname) \
- SYSCALL_METADATA(_##sname, 0); \
+#define SYSCALL_DEFINE0(sname) \
+ SYSCALL_METADATA(_##sname, 0); \
asmlinkage long __x64_sys_##sname(const struct pt_regs *__unused);\
- ALLOW_ERROR_INJECTION(__x64_sys_##sname, ERRNO); \
+ ALLOW_ERROR_INJECTION(__x64_sys_##sname, ERRNO); \
asmlinkage long __x64_sys_##sname(const struct pt_regs *__unused)
#endif
#ifndef COND_SYSCALL
-#define COND_SYSCALL(name) cond_syscall(__x64_sys_##name)
+#define COND_SYSCALL(name) \
+ asmlinkage __weak long __x64_sys_##name(const struct pt_regs *__unused) \
+ { \
+ return sys_ni_syscall(); \
+ }
#endif
#ifndef SYS_NI
@@ -202,7 +218,6 @@
* For VSYSCALLS, we need to declare these three syscalls with the new
* pt_regs-based calling convention for in-kernel use.
*/
-struct pt_regs;
asmlinkage long __x64_sys_getcpu(const struct pt_regs *regs);
asmlinkage long __x64_sys_gettimeofday(const struct pt_regs *regs);
asmlinkage long __x64_sys_time(const struct pt_regs *regs);
diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
index 82b0ff6c..0c761cc 100644
--- a/arch/x86/include/asm/uaccess.h
+++ b/arch/x86/include/asm/uaccess.h
@@ -724,6 +724,9 @@ static __must_check inline bool user_access_begin(int type,
#define user_access_begin(a, b, c) user_access_begin(a, b, c)
#define user_access_end() __uaccess_end()
+#define user_access_save() smap_save()
+#define user_access_restore(x) smap_restore(x)
+
#define unsafe_put_user(x, ptr, err_label) \
do { \
int __pu_err; \
diff --git a/arch/x86/include/asm/vdso/clocksource.h b/arch/x86/include/asm/vdso/clocksource.h
new file mode 100644
index 0000000..17aa179
--- /dev/null
+++ b/arch/x86/include/asm/vdso/clocksource.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_VDSO_CLOCKSOURCE_H
+#define __ASM_VDSO_CLOCKSOURCE_H
+
+#define VCLOCK_NONE 0 /* No vDSO clock available. */
+#define VCLOCK_TSC 1 /* vDSO should use vread_tsc. */
+#define VCLOCK_PVCLOCK 2 /* vDSO should use vread_pvclock. */
+#define VCLOCK_HVCLOCK 3 /* vDSO should use vread_hvclock. */
+#define VCLOCK_MAX 3
+
+#endif /* __ASM_VDSO_CLOCKSOURCE_H */
diff --git a/arch/x86/include/asm/vdso/gettimeofday.h b/arch/x86/include/asm/vdso/gettimeofday.h
new file mode 100644
index 0000000..d341f33
--- /dev/null
+++ b/arch/x86/include/asm/vdso/gettimeofday.h
@@ -0,0 +1,298 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Fast user context implementation of clock_gettime, gettimeofday, and time.
+ *
+ * Copyright (C) 2019 ARM Limited.
+ * Copyright 2006 Andi Kleen, SUSE Labs.
+ * 32 Bit compat layer by Stefani Seibold <stefani@seibold.net>
+ * sponsored by Rohde & Schwarz GmbH & Co. KG Munich/Germany
+ */
+#ifndef __ASM_VDSO_GETTIMEOFDAY_H
+#define __ASM_VDSO_GETTIMEOFDAY_H
+
+#ifndef __ASSEMBLY__
+
+#include <uapi/linux/time.h>
+#include <asm/vgtod.h>
+#include <asm/vvar.h>
+#include <asm/unistd.h>
+#include <asm/msr.h>
+#include <asm/pvclock.h>
+#include <asm/mshyperv.h>
+#include <linux/compat_time.h>
+
+#define __vdso_data (VVAR(_vdso_data))
+
+#define VDSO_HAS_TIME 1
+
+#define VDSO_HAS_CLOCK_GETRES 1
+
+/*
+ * Declare the memory-mapped vclock data pages. These come from hypervisors.
+ * If we ever reintroduce something like direct access to an MMIO clock like
+ * the HPET again, it will go here as well.
+ *
+ * A load from any of these pages will segfault if the clock in question is
+ * disabled, so appropriate compiler barriers and checks need to be used
+ * to prevent stray loads.
+ *
+ * These declarations MUST NOT be const. The compiler will assume that
+ * an extern const variable has genuinely constant contents, and the
+ * resulting code won't work, since the whole point is that these pages
+ * change over time, possibly while we're accessing them.
+ */
+
+#ifdef CONFIG_PARAVIRT_CLOCK
+/*
+ * This is the vCPU 0 pvclock page. We only use pvclock from the vDSO
+ * if the hypervisor tells us that all vCPUs can get valid data from the
+ * vCPU 0 page.
+ */
+extern struct pvclock_vsyscall_time_info pvclock_page
+ __attribute__((visibility("hidden")));
+#endif
+
+#ifdef CONFIG_HYPERV_TSCPAGE
+extern struct ms_hyperv_tsc_page hvclock_page
+ __attribute__((visibility("hidden")));
+#endif
+
+#ifndef BUILD_VDSO32
+
+static __always_inline
+long clock_gettime_fallback(clockid_t _clkid, struct __kernel_timespec *_ts)
+{
+ long ret;
+
+ asm ("syscall" : "=a" (ret), "=m" (*_ts) :
+ "0" (__NR_clock_gettime), "D" (_clkid), "S" (_ts) :
+ "rcx", "r11");
+
+ return ret;
+}
+
+static __always_inline
+long gettimeofday_fallback(struct __kernel_old_timeval *_tv,
+ struct timezone *_tz)
+{
+ long ret;
+
+ asm("syscall" : "=a" (ret) :
+ "0" (__NR_gettimeofday), "D" (_tv), "S" (_tz) : "memory");
+
+ return ret;
+}
+
+static __always_inline
+long clock_getres_fallback(clockid_t _clkid, struct __kernel_timespec *_ts)
+{
+ long ret;
+
+ asm ("syscall" : "=a" (ret), "=m" (*_ts) :
+ "0" (__NR_clock_getres), "D" (_clkid), "S" (_ts) :
+ "rcx", "r11");
+
+ return ret;
+}
+
+#else
+
+#define VDSO_HAS_32BIT_FALLBACK 1
+
+static __always_inline
+long clock_gettime_fallback(clockid_t _clkid, struct __kernel_timespec *_ts)
+{
+ long ret;
+
+ asm (
+ "mov %%ebx, %%edx \n"
+ "mov %[clock], %%ebx \n"
+ "call __kernel_vsyscall \n"
+ "mov %%edx, %%ebx \n"
+ : "=a" (ret), "=m" (*_ts)
+ : "0" (__NR_clock_gettime), [clock] "g" (_clkid), "c" (_ts)
+ : "edx");
+
+ return ret;
+}
+
+static __always_inline
+long clock_gettime32_fallback(clockid_t _clkid, struct old_timespec32 *_ts)
+{
+ long ret;
+
+ asm (
+ "mov %%ebx, %%edx \n"
+ "mov %[clock], %%ebx \n"
+ "call __kernel_vsyscall \n"
+ "mov %%edx, %%ebx \n"
+ : "=a" (ret), "=m" (*_ts)
+ : "0" (__NR_clock_gettime), [clock] "g" (_clkid), "c" (_ts)
+ : "edx");
+
+ return ret;
+}
+
+static __always_inline
+long gettimeofday_fallback(struct __kernel_old_timeval *_tv,
+ struct timezone *_tz)
+{
+ long ret;
+
+ asm(
+ "mov %%ebx, %%edx \n"
+ "mov %2, %%ebx \n"
+ "call __kernel_vsyscall \n"
+ "mov %%edx, %%ebx \n"
+ : "=a" (ret)
+ : "0" (__NR_gettimeofday), "g" (_tv), "c" (_tz)
+ : "memory", "edx");
+
+ return ret;
+}
+
+static __always_inline long
+clock_getres_fallback(clockid_t _clkid, struct __kernel_timespec *_ts)
+{
+ long ret;
+
+ asm (
+ "mov %%ebx, %%edx \n"
+ "mov %[clock], %%ebx \n"
+ "call __kernel_vsyscall \n"
+ "mov %%edx, %%ebx \n"
+ : "=a" (ret), "=m" (*_ts)
+ : "0" (__NR_clock_getres), [clock] "g" (_clkid), "c" (_ts)
+ : "edx");
+
+ return ret;
+}
+
+static __always_inline
+long clock_getres32_fallback(clockid_t _clkid, struct old_timespec32 *_ts)
+{
+ long ret;
+
+ asm (
+ "mov %%ebx, %%edx \n"
+ "mov %[clock], %%ebx \n"
+ "call __kernel_vsyscall \n"
+ "mov %%edx, %%ebx \n"
+ : "=a" (ret), "=m" (*_ts)
+ : "0" (__NR_clock_getres), [clock] "g" (_clkid), "c" (_ts)
+ : "edx");
+
+ return ret;
+}
+
+#endif
+
+#ifdef CONFIG_PARAVIRT_CLOCK
+static u64 vread_pvclock(void)
+{
+ const struct pvclock_vcpu_time_info *pvti = &pvclock_page.pvti;
+ u32 version;
+ u64 ret;
+
+ /*
+ * Note: The kernel and hypervisor must guarantee that cpu ID
+ * number maps 1:1 to per-CPU pvclock time info.
+ *
+ * Because the hypervisor is entirely unaware of guest userspace
+ * preemption, it cannot guarantee that per-CPU pvclock time
+ * info is updated if the underlying CPU changes or that that
+ * version is increased whenever underlying CPU changes.
+ *
+ * On KVM, we are guaranteed that pvti updates for any vCPU are
+ * atomic as seen by *all* vCPUs. This is an even stronger
+ * guarantee than we get with a normal seqlock.
+ *
+ * On Xen, we don't appear to have that guarantee, but Xen still
+ * supplies a valid seqlock using the version field.
+ *
+ * We only do pvclock vdso timing at all if
+ * PVCLOCK_TSC_STABLE_BIT is set, and we interpret that bit to
+ * mean that all vCPUs have matching pvti and that the TSC is
+ * synced, so we can just look at vCPU 0's pvti.
+ */
+
+ do {
+ version = pvclock_read_begin(pvti);
+
+ if (unlikely(!(pvti->flags & PVCLOCK_TSC_STABLE_BIT)))
+ return U64_MAX;
+
+ ret = __pvclock_read_cycles(pvti, rdtsc_ordered());
+ } while (pvclock_read_retry(pvti, version));
+
+ return ret;
+}
+#endif
+
+#ifdef CONFIG_HYPERV_TSCPAGE
+static u64 vread_hvclock(void)
+{
+ return hv_read_tsc_page(&hvclock_page);
+}
+#endif
+
+static inline u64 __arch_get_hw_counter(s32 clock_mode)
+{
+ if (clock_mode == VCLOCK_TSC)
+ return (u64)rdtsc_ordered();
+ /*
+ * For any memory-mapped vclock type, we need to make sure that gcc
+ * doesn't cleverly hoist a load before the mode check. Otherwise we
+ * might end up touching the memory-mapped page even if the vclock in
+ * question isn't enabled, which will segfault. Hence the barriers.
+ */
+#ifdef CONFIG_PARAVIRT_CLOCK
+ if (clock_mode == VCLOCK_PVCLOCK) {
+ barrier();
+ return vread_pvclock();
+ }
+#endif
+#ifdef CONFIG_HYPERV_TSCPAGE
+ if (clock_mode == VCLOCK_HVCLOCK) {
+ barrier();
+ return vread_hvclock();
+ }
+#endif
+ return U64_MAX;
+}
+
+static __always_inline const struct vdso_data *__arch_get_vdso_data(void)
+{
+ return __vdso_data;
+}
+
+/*
+ * x86 specific delta calculation.
+ *
+ * The regular implementation assumes that clocksource reads are globally
+ * monotonic. The TSC can be slightly off across sockets which can cause
+ * the regular delta calculation (@cycles - @last) to return a huge time
+ * jump.
+ *
+ * Therefore it needs to be verified that @cycles are greater than
+ * @last. If not then use @last, which is the base time of the current
+ * conversion period.
+ *
+ * This variant also removes the masking of the subtraction because the
+ * clocksource mask of all VDSO capable clocksources on x86 is U64_MAX
+ * which would result in a pointless operation. The compiler cannot
+ * optimize it away as the mask comes from the vdso data and is not compile
+ * time constant.
+ */
+static __always_inline
+u64 vdso_calc_delta(u64 cycles, u64 last, u64 mask, u32 mult)
+{
+ if (cycles > last)
+ return (cycles - last) * mult;
+ return 0;
+}
+#define vdso_calc_delta vdso_calc_delta
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* __ASM_VDSO_GETTIMEOFDAY_H */
diff --git a/arch/x86/include/asm/vdso/processor.h b/arch/x86/include/asm/vdso/processor.h
new file mode 100644
index 0000000..57b1a70
--- /dev/null
+++ b/arch/x86/include/asm/vdso/processor.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020 ARM Ltd.
+ */
+#ifndef __ASM_VDSO_PROCESSOR_H
+#define __ASM_VDSO_PROCESSOR_H
+
+#ifndef __ASSEMBLY__
+
+/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */
+static __always_inline void rep_nop(void)
+{
+ asm volatile("rep; nop" ::: "memory");
+}
+
+static __always_inline void cpu_relax(void)
+{
+ rep_nop();
+}
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __ASM_VDSO_PROCESSOR_H */
diff --git a/arch/x86/include/asm/vdso/vsyscall.h b/arch/x86/include/asm/vdso/vsyscall.h
new file mode 100644
index 0000000..0026ab2
--- /dev/null
+++ b/arch/x86/include/asm/vdso/vsyscall.h
@@ -0,0 +1,44 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_VDSO_VSYSCALL_H
+#define __ASM_VDSO_VSYSCALL_H
+
+#ifndef __ASSEMBLY__
+
+#include <linux/hrtimer.h>
+#include <linux/timekeeper_internal.h>
+#include <vdso/datapage.h>
+#include <asm/vgtod.h>
+#include <asm/vvar.h>
+
+int vclocks_used __read_mostly;
+
+DEFINE_VVAR(struct vdso_data, _vdso_data);
+/*
+ * Update the vDSO data page to keep in sync with kernel timekeeping.
+ */
+static __always_inline
+struct vdso_data *__x86_get_k_vdso_data(void)
+{
+ return _vdso_data;
+}
+#define __arch_get_k_vdso_data __x86_get_k_vdso_data
+
+static __always_inline
+int __x86_get_clock_mode(struct timekeeper *tk)
+{
+ int vclock_mode = tk->tkr_mono.clock->archdata.vclock_mode;
+
+ /* Mark the new vclock used. */
+ BUILD_BUG_ON(VCLOCK_MAX >= 32);
+ WRITE_ONCE(vclocks_used, READ_ONCE(vclocks_used) | (1 << vclock_mode));
+
+ return vclock_mode;
+}
+#define __arch_get_clock_mode __x86_get_clock_mode
+
+/* The asm-generic header needs to be included after the definitions above */
+#include <asm-generic/vdso/vsyscall.h>
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* __ASM_VDSO_VSYSCALL_H */
diff --git a/arch/x86/include/asm/vgtod.h b/arch/x86/include/asm/vgtod.h
index 5374854..0782d30 100644
--- a/arch/x86/include/asm/vgtod.h
+++ b/arch/x86/include/asm/vgtod.h
@@ -2,41 +2,22 @@
#ifndef _ASM_X86_VGTOD_H
#define _ASM_X86_VGTOD_H
+/*
+ * This check is required to prevent ARCH=um to include
+ * unwanted headers.
+ */
+#ifdef CONFIG_GENERIC_GETTIMEOFDAY
#include <linux/compiler.h>
-#include <linux/clocksource.h>
+#include <asm/clocksource.h>
+#include <vdso/datapage.h>
+#include <vdso/helpers.h>
#ifdef BUILD_VDSO32_64
typedef u64 gtod_long_t;
#else
typedef unsigned long gtod_long_t;
#endif
-/*
- * vsyscall_gtod_data will be accessed by 32 and 64 bit code at the same time
- * so be carefull by modifying this structure.
- */
-struct vsyscall_gtod_data {
- unsigned seq;
-
- int vclock_mode;
- u64 cycle_last;
- u64 mask;
- u32 mult;
- u32 shift;
-
- /* open coded 'struct timespec' */
- u64 wall_time_snsec;
- gtod_long_t wall_time_sec;
- gtod_long_t monotonic_time_sec;
- u64 monotonic_time_snsec;
- gtod_long_t wall_time_coarse_sec;
- gtod_long_t wall_time_coarse_nsec;
- gtod_long_t monotonic_time_coarse_sec;
- gtod_long_t monotonic_time_coarse_nsec;
-
- int tz_minuteswest;
- int tz_dsttime;
-};
-extern struct vsyscall_gtod_data vsyscall_gtod_data;
+#endif /* CONFIG_GENERIC_GETTIMEOFDAY */
extern int vclocks_used;
static inline bool vclock_was_used(int vclock)
@@ -44,63 +25,4 @@ static inline bool vclock_was_used(int vclock)
return READ_ONCE(vclocks_used) & (1 << vclock);
}
-static inline unsigned gtod_read_begin(const struct vsyscall_gtod_data *s)
-{
- unsigned ret;
-
-repeat:
- ret = READ_ONCE(s->seq);
- if (unlikely(ret & 1)) {
- cpu_relax();
- goto repeat;
- }
- smp_rmb();
- return ret;
-}
-
-static inline int gtod_read_retry(const struct vsyscall_gtod_data *s,
- unsigned start)
-{
- smp_rmb();
- return unlikely(s->seq != start);
-}
-
-static inline void gtod_write_begin(struct vsyscall_gtod_data *s)
-{
- ++s->seq;
- smp_wmb();
-}
-
-static inline void gtod_write_end(struct vsyscall_gtod_data *s)
-{
- smp_wmb();
- ++s->seq;
-}
-
-#ifdef CONFIG_X86_64
-
-#define VGETCPU_CPU_MASK 0xfff
-
-static inline unsigned int __getcpu(void)
-{
- unsigned int p;
-
- /*
- * Load per CPU data from GDT. LSL is faster than RDTSCP and
- * works on all CPUs. This is volatile so that it orders
- * correctly wrt barrier() and to keep gcc from cleverly
- * hoisting it out of the calling function.
- *
- * If RDPID is available, use it.
- */
- alternative_io ("lsl %[seg],%[p]",
- ".byte 0xf3,0x0f,0xc7,0xf8", /* RDPID %eax/rax */
- X86_FEATURE_RDPID,
- [p] "=a" (p), [seg] "r" (__PER_CPU_SEG));
-
- return p;
-}
-
-#endif /* CONFIG_X86_64 */
-
#endif /* _ASM_X86_VGTOD_H */
diff --git a/arch/x86/include/asm/vvar.h b/arch/x86/include/asm/vvar.h
index 3f32dfc..2dbde48 100644
--- a/arch/x86/include/asm/vvar.h
+++ b/arch/x86/include/asm/vvar.h
@@ -32,19 +32,20 @@
extern char __vvar_page;
#define DECLARE_VVAR(offset, type, name) \
- extern type vvar_ ## name __attribute__((visibility("hidden")));
+ extern type vvar_ ## name[CS_BASES] \
+ __attribute__((visibility("hidden")));
#define VVAR(name) (vvar_ ## name)
#define DEFINE_VVAR(type, name) \
- type name \
+ type name[CS_BASES] \
__attribute__((section(".vvar_" #name), aligned(16))) __visible
#endif
/* DECLARE_VVAR(offset, type, name) */
-DECLARE_VVAR(128, struct vsyscall_gtod_data, vsyscall_gtod_data)
+DECLARE_VVAR(128, struct vdso_data, _vdso_data)
#undef DECLARE_VVAR
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 2058e8c..b699b82 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1763,6 +1763,29 @@ static void wait_for_master_cpu(int cpu)
#endif
}
+#ifdef CONFIG_X86_64
+static void setup_getcpu(int cpu)
+{
+ unsigned long cpudata = vdso_encode_cpunode(cpu, early_cpu_to_node(cpu));
+ struct desc_struct d = { };
+
+ if (boot_cpu_has(X86_FEATURE_RDTSCP))
+ write_rdtscp_aux(cpudata);
+
+ /* Store CPU and node number in limit. */
+ d.limit0 = cpudata;
+ d.limit1 = cpudata >> 16;
+
+ d.type = 5; /* RO data, expand down, accessed */
+ d.dpl = 3; /* Visible to user code */
+ d.s = 1; /* Not a system segment */
+ d.p = 1; /* Present */
+ d.d = 1; /* 32-bit */
+
+ write_gdt_entry(get_cpu_gdt_rw(cpu), GDT_ENTRY_CPUNODE, &d, DESCTYPE_S);
+}
+#endif
+
/*
* cpu_init() initializes state that is per-CPU. Some data is already
* initialized (naturally) in the bootstrap process, such as the GDT
@@ -1800,6 +1823,7 @@ void cpu_init(void)
early_cpu_to_node(cpu) != NUMA_NO_NODE)
set_numa_node(early_cpu_to_node(cpu));
#endif
+ setup_getcpu(cpu);
me = current;
diff --git a/arch/x86/kernel/cpu/vmware.c b/arch/x86/kernel/cpu/vmware.c
index d805202..917840e 100644
--- a/arch/x86/kernel/cpu/vmware.c
+++ b/arch/x86/kernel/cpu/vmware.c
@@ -45,7 +45,7 @@
#define VMWARE_PORT_CMD_VCPU_RESERVED 31
#define VMWARE_PORT(cmd, eax, ebx, ecx, edx) \
- __asm__("inl (%%dx)" : \
+ __asm__("inl (%%dx), %%eax" : \
"=a"(eax), "=c"(ecx), "=d"(edx), "=b"(ebx) : \
"0"(VMWARE_HYPERVISOR_MAGIC), \
"1"(VMWARE_PORT_CMD_##cmd), \
diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c
index 9f0be2c..afc0302 100644
--- a/arch/x86/kernel/module.c
+++ b/arch/x86/kernel/module.c
@@ -202,6 +202,10 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
goto overflow;
#endif
break;
+ case R_X86_64_8:
+ if (!strncmp(strtab + sym->st_name, "__typeid__", 10))
+ break;
+ /* fallthrough */
default:
pr_err("%s: Unknown rela relocation: %llu\n",
me->name, ELF64_R_TYPE(rel[i].r_info));
diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
index 637982e..899d0fb 100644
--- a/arch/x86/kernel/pvclock.c
+++ b/arch/x86/kernel/pvclock.c
@@ -15,6 +15,7 @@
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include <linux/clocksource.h>
#include <linux/kernel.h>
#include <linux/percpu.h>
#include <linux/notifier.h>
diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index 34c0652..9c26cbc 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -152,16 +152,22 @@
__indirect_thunk_end = .;
#endif
- /* End of text section */
- _etext = .;
+#ifdef CONFIG_CFI_CLANG
+ . = ALIGN(PAGE_SIZE);
+ __cfi_jt_start = .;
+ *(.text..L.cfi.jumptable .text..L.cfi.jumptable.*)
+ __cfi_jt_end = .;
+#endif
} :text = 0x9090
NOTES :text :note
EXCEPTION_TABLE(16) :text = 0x9090
- /* .text should occupy whole number of pages */
+ /* End of text section, which should occupy whole number of pages */
+ _etext = .;
. = ALIGN(PAGE_SIZE);
+
X86_ALIGN_RODATA_BEGIN
RO_DATA(PAGE_SIZE)
X86_ALIGN_RODATA_END
@@ -436,3 +442,7 @@
"kexec control code size is too big");
#endif
+#ifdef CONFIG_CFI_CLANG
+. = ASSERT((__cfi_jt_end - __cfi_jt_start > 0),
+ "CFI jump table is empty");
+#endif
diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig
index 1bbec38..f3f2e54 100644
--- a/arch/x86/kvm/Kconfig
+++ b/arch/x86/kvm/Kconfig
@@ -27,7 +27,6 @@
depends on X86_LOCAL_APIC
select PREEMPT_NOTIFIERS
select MMU_NOTIFIER
- select ANON_INODES
select HAVE_KVM_IRQCHIP
select HAVE_KVM_IRQFD
select IRQ_BYPASS_MANAGER
diff --git a/arch/x86/mm/dump_pagetables.c b/arch/x86/mm/dump_pagetables.c
index abcb8d0..e3cdc85 100644
--- a/arch/x86/mm/dump_pagetables.c
+++ b/arch/x86/mm/dump_pagetables.c
@@ -377,7 +377,7 @@ static void walk_pte_level(struct seq_file *m, struct pg_state *st, pmd_t addr,
/*
* This is an optimization for KASAN=y case. Since all kasan page tables
- * eventually point to the kasan_zero_page we could call note_page()
+ * eventually point to the kasan_early_shadow_page we could call note_page()
* right away without walking through lower level page tables. This saves
* us dozens of seconds (minutes for 5-level config) while checking for
* W+X mapping or reading kernel_page_tables debugfs file.
@@ -385,10 +385,11 @@ static void walk_pte_level(struct seq_file *m, struct pg_state *st, pmd_t addr,
static inline bool kasan_page_table(struct seq_file *m, struct pg_state *st,
void *pt)
{
- if (__pa(pt) == __pa(kasan_zero_pmd) ||
- (pgtable_l5_enabled() && __pa(pt) == __pa(kasan_zero_p4d)) ||
- __pa(pt) == __pa(kasan_zero_pud)) {
- pgprotval_t prot = pte_flags(kasan_zero_pte[0]);
+ if (__pa(pt) == __pa(kasan_early_shadow_pmd) ||
+ (pgtable_l5_enabled() &&
+ __pa(pt) == __pa(kasan_early_shadow_p4d)) ||
+ __pa(pt) == __pa(kasan_early_shadow_pud)) {
+ pgprotval_t prot = pte_flags(kasan_early_shadow_pte[0]);
note_page(m, st, __pgprot(prot), 0, 5);
return true;
}
diff --git a/arch/x86/mm/extable.c b/arch/x86/mm/extable.c
index 45f5d6c..79e9955 100644
--- a/arch/x86/mm/extable.c
+++ b/arch/x86/mm/extable.c
@@ -170,6 +170,7 @@ __visible bool ex_has_fault_handler(unsigned long ip)
return handler == ex_handler_fault;
}
+__nocfi
int fixup_exception(struct pt_regs *regs, int trapnr)
{
const struct exception_table_entry *e;
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 4b25a1a..5e6ae539 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -1195,7 +1195,7 @@ int kernel_set_to_readonly;
void set_kernel_text_rw(void)
{
unsigned long start = PFN_ALIGN(_text);
- unsigned long end = PFN_ALIGN(__stop___ex_table);
+ unsigned long end = PFN_ALIGN(_etext);
if (!kernel_set_to_readonly)
return;
@@ -1214,7 +1214,7 @@ void set_kernel_text_rw(void)
void set_kernel_text_ro(void)
{
unsigned long start = PFN_ALIGN(_text);
- unsigned long end = PFN_ALIGN(__stop___ex_table);
+ unsigned long end = PFN_ALIGN(_etext);
if (!kernel_set_to_readonly)
return;
@@ -1233,7 +1233,7 @@ void mark_rodata_ro(void)
unsigned long start = PFN_ALIGN(_text);
unsigned long rodata_start = PFN_ALIGN(__start_rodata);
unsigned long end = (unsigned long) &__end_rodata_hpage_align;
- unsigned long text_end = PFN_ALIGN(&__stop___ex_table);
+ unsigned long text_end = PFN_ALIGN(&_etext);
unsigned long rodata_end = PFN_ALIGN(&__end_rodata);
unsigned long all_end;
diff --git a/arch/x86/mm/kasan_init_64.c b/arch/x86/mm/kasan_init_64.c
index 4bfd14d..d6f8f87 100644
--- a/arch/x86/mm/kasan_init_64.c
+++ b/arch/x86/mm/kasan_init_64.c
@@ -212,7 +212,8 @@ static void __init kasan_early_p4d_populate(pgd_t *pgd,
unsigned long next;
if (pgd_none(*pgd)) {
- pgd_entry = __pgd(_KERNPG_TABLE | __pa_nodebug(kasan_zero_p4d));
+ pgd_entry = __pgd(_KERNPG_TABLE |
+ __pa_nodebug(kasan_early_shadow_p4d));
set_pgd(pgd, pgd_entry);
}
@@ -223,7 +224,8 @@ static void __init kasan_early_p4d_populate(pgd_t *pgd,
if (!p4d_none(*p4d))
continue;
- p4d_entry = __p4d(_KERNPG_TABLE | __pa_nodebug(kasan_zero_pud));
+ p4d_entry = __p4d(_KERNPG_TABLE |
+ __pa_nodebug(kasan_early_shadow_pud));
set_p4d(p4d, p4d_entry);
} while (p4d++, addr = next, addr != end && p4d_none(*p4d));
}
@@ -262,10 +264,11 @@ static struct notifier_block kasan_die_notifier = {
void __init kasan_early_init(void)
{
int i;
- pteval_t pte_val = __pa_nodebug(kasan_zero_page) | __PAGE_KERNEL | _PAGE_ENC;
- pmdval_t pmd_val = __pa_nodebug(kasan_zero_pte) | _KERNPG_TABLE;
- pudval_t pud_val = __pa_nodebug(kasan_zero_pmd) | _KERNPG_TABLE;
- p4dval_t p4d_val = __pa_nodebug(kasan_zero_pud) | _KERNPG_TABLE;
+ pteval_t pte_val = __pa_nodebug(kasan_early_shadow_page) |
+ __PAGE_KERNEL | _PAGE_ENC;
+ pmdval_t pmd_val = __pa_nodebug(kasan_early_shadow_pte) | _KERNPG_TABLE;
+ pudval_t pud_val = __pa_nodebug(kasan_early_shadow_pmd) | _KERNPG_TABLE;
+ p4dval_t p4d_val = __pa_nodebug(kasan_early_shadow_pud) | _KERNPG_TABLE;
/* Mask out unsupported __PAGE_KERNEL bits: */
pte_val &= __default_kernel_pte_mask;
@@ -274,16 +277,16 @@ void __init kasan_early_init(void)
p4d_val &= __default_kernel_pte_mask;
for (i = 0; i < PTRS_PER_PTE; i++)
- kasan_zero_pte[i] = __pte(pte_val);
+ kasan_early_shadow_pte[i] = __pte(pte_val);
for (i = 0; i < PTRS_PER_PMD; i++)
- kasan_zero_pmd[i] = __pmd(pmd_val);
+ kasan_early_shadow_pmd[i] = __pmd(pmd_val);
for (i = 0; i < PTRS_PER_PUD; i++)
- kasan_zero_pud[i] = __pud(pud_val);
+ kasan_early_shadow_pud[i] = __pud(pud_val);
for (i = 0; pgtable_l5_enabled() && i < PTRS_PER_P4D; i++)
- kasan_zero_p4d[i] = __p4d(p4d_val);
+ kasan_early_shadow_p4d[i] = __p4d(p4d_val);
kasan_map_early_shadow(early_top_pgt);
kasan_map_early_shadow(init_top_pgt);
@@ -327,7 +330,7 @@ void __init kasan_init(void)
clear_pgds(KASAN_SHADOW_START & PGDIR_MASK, KASAN_SHADOW_END);
- kasan_populate_zero_shadow((void *)(KASAN_SHADOW_START & PGDIR_MASK),
+ kasan_populate_early_shadow((void *)(KASAN_SHADOW_START & PGDIR_MASK),
kasan_mem_to_shadow((void *)PAGE_OFFSET));
for (i = 0; i < E820_MAX_ENTRIES; i++) {
@@ -339,41 +342,41 @@ void __init kasan_init(void)
shadow_cpu_entry_begin = (void *)CPU_ENTRY_AREA_BASE;
shadow_cpu_entry_begin = kasan_mem_to_shadow(shadow_cpu_entry_begin);
- shadow_cpu_entry_begin = (void *)round_down((unsigned long)shadow_cpu_entry_begin,
- PAGE_SIZE);
+ shadow_cpu_entry_begin = (void *)round_down(
+ (unsigned long)shadow_cpu_entry_begin, PAGE_SIZE);
shadow_cpu_entry_end = (void *)(CPU_ENTRY_AREA_BASE +
CPU_ENTRY_AREA_MAP_SIZE);
shadow_cpu_entry_end = kasan_mem_to_shadow(shadow_cpu_entry_end);
- shadow_cpu_entry_end = (void *)round_up((unsigned long)shadow_cpu_entry_end,
- PAGE_SIZE);
+ shadow_cpu_entry_end = (void *)round_up(
+ (unsigned long)shadow_cpu_entry_end, PAGE_SIZE);
- kasan_populate_zero_shadow(
+ kasan_populate_early_shadow(
kasan_mem_to_shadow((void *)PAGE_OFFSET + MAXMEM),
shadow_cpu_entry_begin);
kasan_populate_shadow((unsigned long)shadow_cpu_entry_begin,
(unsigned long)shadow_cpu_entry_end, 0);
- kasan_populate_zero_shadow(shadow_cpu_entry_end,
- kasan_mem_to_shadow((void *)__START_KERNEL_map));
+ kasan_populate_early_shadow(shadow_cpu_entry_end,
+ kasan_mem_to_shadow((void *)__START_KERNEL_map));
kasan_populate_shadow((unsigned long)kasan_mem_to_shadow(_stext),
(unsigned long)kasan_mem_to_shadow(_end),
early_pfn_to_nid(__pa(_stext)));
- kasan_populate_zero_shadow(kasan_mem_to_shadow((void *)MODULES_END),
- (void *)KASAN_SHADOW_END);
+ kasan_populate_early_shadow(kasan_mem_to_shadow((void *)MODULES_END),
+ (void *)KASAN_SHADOW_END);
load_cr3(init_top_pgt);
__flush_tlb_all();
/*
- * kasan_zero_page has been used as early shadow memory, thus it may
- * contain some garbage. Now we can clear and write protect it, since
- * after the TLB flush no one should write to it.
+ * kasan_early_shadow_page has been used as early shadow memory, thus
+ * it may contain some garbage. Now we can clear and write protect it,
+ * since after the TLB flush no one should write to it.
*/
- memset(kasan_zero_page, 0, PAGE_SIZE);
+ memset(kasan_early_shadow_page, 0, PAGE_SIZE);
for (i = 0; i < PTRS_PER_PTE; i++) {
pte_t pte;
pgprot_t prot;
@@ -381,8 +384,8 @@ void __init kasan_init(void)
prot = __pgprot(__PAGE_KERNEL_RO | _PAGE_ENC);
pgprot_val(prot) &= __default_kernel_pte_mask;
- pte = __pte(__pa(kasan_zero_page) | pgprot_val(prot));
- set_pte(&kasan_zero_pte[i], pte);
+ pte = __pte(__pa(kasan_early_shadow_page) | pgprot_val(prot));
+ set_pte(&kasan_early_shadow_pte[i], pte);
}
/* Flush TLBs again to be sure that write protection applied. */
__flush_tlb_all();
diff --git a/arch/x86/mm/pti.c b/arch/x86/mm/pti.c
index 622d596..8316cdb 100644
--- a/arch/x86/mm/pti.c
+++ b/arch/x86/mm/pti.c
@@ -482,6 +482,15 @@ static void pti_clone_entry_text(void)
pti_clone_pgtable((unsigned long) __entry_text_start,
(unsigned long) __irqentry_text_end,
PTI_CLONE_PMD);
+
+ /*
+ * If CFI is enabled, also map jump tables, so the entry code can
+ * make indirect calls.
+ */
+ if (IS_ENABLED(CONFIG_CFI_CLANG))
+ pti_clone_pgtable((unsigned long) __cfi_jt_start,
+ (unsigned long) __cfi_jt_end,
+ PTI_CLONE_PMD);
}
/*
@@ -551,7 +560,7 @@ static void pti_clone_kernel_text(void)
*/
unsigned long start = PFN_ALIGN(_text);
unsigned long end_clone = (unsigned long)__end_rodata_aligned;
- unsigned long end_global = PFN_ALIGN((unsigned long)__stop___ex_table);
+ unsigned long end_global = PFN_ALIGN((unsigned long)_etext);
if (!pti_kernel_image_global_ok())
return;
diff --git a/arch/x86/tools/relocs.c b/arch/x86/tools/relocs.c
index aa046d4..437c3628 100644
--- a/arch/x86/tools/relocs.c
+++ b/arch/x86/tools/relocs.c
@@ -46,6 +46,7 @@ static const char * const sym_regex_kernel[S_NSYMTYPES] = {
"^(xen_irq_disable_direct_reloc$|"
"xen_save_fl_direct_reloc$|"
"VDSO|"
+ "__typeid__|"
"__crc_)",
/*
@@ -782,6 +783,12 @@ static int do_reloc64(struct section *sec, Elf_Rel *rel, ElfW(Sym) *sym,
add_reloc(&relocs32neg, offset);
break;
+ case R_X86_64_8:
+ if (!shn_abs || !is_reloc(S_ABS, symname))
+ die("Non-whitelisted %s relocation: %s\n",
+ rel_type(r_type), symname);
+ break;
+
case R_X86_64_32:
case R_X86_64_32S:
case R_X86_64_64:
diff --git a/arch/xtensa/mm/kasan_init.c b/arch/xtensa/mm/kasan_init.c
index 6b532b6..38ecdbf 100644
--- a/arch/xtensa/mm/kasan_init.c
+++ b/arch/xtensa/mm/kasan_init.c
@@ -25,12 +25,13 @@ void __init kasan_early_init(void)
int i;
for (i = 0; i < PTRS_PER_PTE; ++i)
- set_pte(kasan_zero_pte + i,
- mk_pte(virt_to_page(kasan_zero_page), PAGE_KERNEL));
+ set_pte(kasan_early_shadow_pte + i,
+ mk_pte(virt_to_page(kasan_early_shadow_page),
+ PAGE_KERNEL));
for (vaddr = 0; vaddr < KASAN_SHADOW_SIZE; vaddr += PMD_SIZE, ++pmd) {
BUG_ON(!pmd_none(*pmd));
- set_pmd(pmd, __pmd((unsigned long)kasan_zero_pte));
+ set_pmd(pmd, __pmd((unsigned long)kasan_early_shadow_pte));
}
early_trap_init();
}
@@ -81,13 +82,16 @@ void __init kasan_init(void)
populate(kasan_mem_to_shadow((void *)VMALLOC_START),
kasan_mem_to_shadow((void *)XCHAL_KSEG_BYPASS_VADDR));
- /* Write protect kasan_zero_page and zero-initialize it again. */
+ /*
+ * Write protect kasan_early_shadow_page and zero-initialize it again.
+ */
for (i = 0; i < PTRS_PER_PTE; ++i)
- set_pte(kasan_zero_pte + i,
- mk_pte(virt_to_page(kasan_zero_page), PAGE_KERNEL_RO));
+ set_pte(kasan_early_shadow_pte + i,
+ mk_pte(virt_to_page(kasan_early_shadow_page),
+ PAGE_KERNEL_RO));
local_flush_tlb_all();
- memset(kasan_zero_page, 0, PAGE_SIZE);
+ memset(kasan_early_shadow_page, 0, PAGE_SIZE);
/* At this point kasan is fully initialized. Enable error messages. */
current->kasan_depth = 0;
diff --git a/block/Kconfig b/block/Kconfig
index 1f2469a..d4f96c7 100644
--- a/block/Kconfig
+++ b/block/Kconfig
@@ -200,6 +200,23 @@
Enabling this option enables users to setup/unlock/lock
Locking ranges for SED devices using the Opal protocol.
+config BLK_INLINE_ENCRYPTION
+ bool "Enable inline encryption support in block layer"
+ help
+ Build the blk-crypto subsystem. Enabling this lets the
+ block layer handle encryption, so users can take
+ advantage of inline encryption hardware if present.
+
+config BLK_INLINE_ENCRYPTION_FALLBACK
+ bool "Enable crypto API fallback for blk-crypto"
+ depends on BLK_INLINE_ENCRYPTION
+ select CRYPTO
+ select CRYPTO_BLKCIPHER
+ help
+ Enabling this lets the block layer handle inline encryption
+ by falling back to the kernel crypto API when inline
+ encryption hardware is not present.
+
menu "Partition Types"
source "block/partitions/Kconfig"
@@ -219,7 +236,7 @@
default y
config BLK_MQ_VIRTIO
- bool
+ tristate
depends on BLOCK && VIRTIO
default y
diff --git a/block/Makefile b/block/Makefile
index 572b33f..a2e0533 100644
--- a/block/Makefile
+++ b/block/Makefile
@@ -37,3 +37,6 @@
obj-$(CONFIG_BLK_DEBUG_FS) += blk-mq-debugfs.o
obj-$(CONFIG_BLK_DEBUG_FS_ZONED)+= blk-mq-debugfs-zoned.o
obj-$(CONFIG_BLK_SED_OPAL) += sed-opal.o
+obj-$(CONFIG_BLK_INLINE_ENCRYPTION) += keyslot-manager.o bio-crypt-ctx.o \
+ blk-crypto.o
+obj-$(CONFIG_BLK_INLINE_ENCRYPTION_FALLBACK) += blk-crypto-fallback.o
\ No newline at end of file
diff --git a/block/OWNERS b/block/OWNERS
new file mode 100644
index 0000000..7786d73
--- /dev/null
+++ b/block/OWNERS
@@ -0,0 +1,2 @@
+# include OWNERS from the authoritative android-mainline branch
+include kernel/common:android-mainline:/block/OWNERS
diff --git a/block/bio-crypt-ctx.c b/block/bio-crypt-ctx.c
new file mode 100644
index 0000000..75008b2
--- /dev/null
+++ b/block/bio-crypt-ctx.c
@@ -0,0 +1,142 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2019 Google LLC
+ */
+
+#include <linux/bio.h>
+#include <linux/blkdev.h>
+#include <linux/keyslot-manager.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+
+#include "blk-crypto-internal.h"
+
+static int num_prealloc_crypt_ctxs = 128;
+
+module_param(num_prealloc_crypt_ctxs, int, 0444);
+MODULE_PARM_DESC(num_prealloc_crypt_ctxs,
+ "Number of bio crypto contexts to preallocate");
+
+static struct kmem_cache *bio_crypt_ctx_cache;
+static mempool_t *bio_crypt_ctx_pool;
+
+int __init bio_crypt_ctx_init(void)
+{
+ size_t i;
+
+ bio_crypt_ctx_cache = KMEM_CACHE(bio_crypt_ctx, 0);
+ if (!bio_crypt_ctx_cache)
+ return -ENOMEM;
+
+ bio_crypt_ctx_pool = mempool_create_slab_pool(num_prealloc_crypt_ctxs,
+ bio_crypt_ctx_cache);
+ if (!bio_crypt_ctx_pool)
+ return -ENOMEM;
+
+ /* This is assumed in various places. */
+ BUILD_BUG_ON(BLK_ENCRYPTION_MODE_INVALID != 0);
+
+ /* Sanity check that no algorithm exceeds the defined limits. */
+ for (i = 0; i < BLK_ENCRYPTION_MODE_MAX; i++) {
+ BUG_ON(blk_crypto_modes[i].keysize > BLK_CRYPTO_MAX_KEY_SIZE);
+ BUG_ON(blk_crypto_modes[i].ivsize > BLK_CRYPTO_MAX_IV_SIZE);
+ }
+
+ return 0;
+}
+
+struct bio_crypt_ctx *bio_crypt_alloc_ctx(gfp_t gfp_mask)
+{
+ return mempool_alloc(bio_crypt_ctx_pool, gfp_mask);
+}
+EXPORT_SYMBOL_GPL(bio_crypt_alloc_ctx);
+
+void bio_crypt_free_ctx(struct bio *bio)
+{
+ mempool_free(bio->bi_crypt_context, bio_crypt_ctx_pool);
+ bio->bi_crypt_context = NULL;
+}
+
+void bio_crypt_clone(struct bio *dst, struct bio *src, gfp_t gfp_mask)
+{
+ const struct bio_crypt_ctx *src_bc = src->bi_crypt_context;
+
+ bio_clone_skip_dm_default_key(dst, src);
+
+ /*
+ * If a bio is fallback_crypted, then it will be decrypted when
+ * bio_endio is called. As we only want the data to be decrypted once,
+ * copies of the bio must not have have a crypt context.
+ */
+ if (!src_bc || bio_crypt_fallback_crypted(src_bc))
+ return;
+
+ dst->bi_crypt_context = bio_crypt_alloc_ctx(gfp_mask);
+ *dst->bi_crypt_context = *src_bc;
+
+ if (src_bc->bc_keyslot >= 0)
+ keyslot_manager_get_slot(src_bc->bc_ksm, src_bc->bc_keyslot);
+}
+EXPORT_SYMBOL_GPL(bio_crypt_clone);
+
+bool bio_crypt_should_process(struct request *rq)
+{
+ struct bio *bio = rq->bio;
+
+ if (!bio || !bio->bi_crypt_context)
+ return false;
+
+ return rq->q->ksm == bio->bi_crypt_context->bc_ksm;
+}
+EXPORT_SYMBOL_GPL(bio_crypt_should_process);
+
+/*
+ * Checks that two bio crypt contexts are compatible - i.e. that
+ * they are mergeable except for data_unit_num continuity.
+ */
+bool bio_crypt_ctx_compatible(struct bio *b_1, struct bio *b_2)
+{
+ struct bio_crypt_ctx *bc1 = b_1->bi_crypt_context;
+ struct bio_crypt_ctx *bc2 = b_2->bi_crypt_context;
+
+ if (!bc1)
+ return !bc2;
+ return bc2 && bc1->bc_key == bc2->bc_key;
+}
+
+/*
+ * Checks that two bio crypt contexts are compatible, and also
+ * that their data_unit_nums are continuous (and can hence be merged)
+ * in the order b_1 followed by b_2.
+ */
+bool bio_crypt_ctx_mergeable(struct bio *b_1, unsigned int b1_bytes,
+ struct bio *b_2)
+{
+ struct bio_crypt_ctx *bc1 = b_1->bi_crypt_context;
+ struct bio_crypt_ctx *bc2 = b_2->bi_crypt_context;
+
+ if (!bio_crypt_ctx_compatible(b_1, b_2))
+ return false;
+
+ return !bc1 || bio_crypt_dun_is_contiguous(bc1, b1_bytes, bc2->bc_dun);
+}
+
+void bio_crypt_ctx_release_keyslot(struct bio_crypt_ctx *bc)
+{
+ keyslot_manager_put_slot(bc->bc_ksm, bc->bc_keyslot);
+ bc->bc_ksm = NULL;
+ bc->bc_keyslot = -1;
+}
+
+int bio_crypt_ctx_acquire_keyslot(struct bio_crypt_ctx *bc,
+ struct keyslot_manager *ksm)
+{
+ int slot = keyslot_manager_get_slot_for_key(ksm, bc->bc_key);
+
+ if (slot < 0)
+ return slot;
+
+ bc->bc_keyslot = slot;
+ bc->bc_ksm = ksm;
+ return 0;
+}
diff --git a/block/bio.c b/block/bio.c
index fe74940..ec51fed 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -29,6 +29,7 @@
#include <linux/workqueue.h>
#include <linux/cgroup.h>
#include <linux/blk-cgroup.h>
+#include <linux/blk-crypto.h>
#include <trace/events/block.h>
#include "blk.h"
@@ -245,6 +246,8 @@ struct bio_vec *bvec_alloc(gfp_t gfp_mask, int nr, unsigned long *idx,
void bio_uninit(struct bio *bio)
{
bio_disassociate_task(bio);
+
+ bio_crypt_free_ctx(bio);
}
EXPORT_SYMBOL(bio_uninit);
@@ -632,15 +635,12 @@ struct bio *bio_clone_fast(struct bio *bio, gfp_t gfp_mask, struct bio_set *bs)
__bio_clone_fast(b, bio);
- if (bio_integrity(bio)) {
- int ret;
+ bio_crypt_clone(b, bio, gfp_mask);
- ret = bio_integrity_clone(b, bio, gfp_mask);
-
- if (ret < 0) {
- bio_put(b);
- return NULL;
- }
+ if (bio_integrity(bio) &&
+ bio_integrity_clone(b, bio, gfp_mask) < 0) {
+ bio_put(b);
+ return NULL;
}
return b;
@@ -803,6 +803,9 @@ void __bio_add_page(struct bio *bio, struct page *page,
bio->bi_iter.bi_size += len;
bio->bi_vcnt++;
+
+ if (!bio_flagged(bio, BIO_WORKINGSET) && unlikely(PageWorkingset(page)))
+ bio_set_flag(bio, BIO_WORKINGSET);
}
EXPORT_SYMBOL_GPL(__bio_add_page);
@@ -950,6 +953,7 @@ void bio_advance(struct bio *bio, unsigned bytes)
if (bio_integrity(bio))
bio_integrity_advance(bio, bytes);
+ bio_crypt_advance(bio, bytes);
bio_advance_iter(bio, &bio->bi_iter, bytes);
}
EXPORT_SYMBOL(bio_advance);
@@ -1748,6 +1752,10 @@ void bio_endio(struct bio *bio)
again:
if (!bio_remaining_done(bio))
return;
+
+ if (!blk_crypto_endio(bio))
+ return;
+
if (!bio_integrity_endio(bio))
return;
diff --git a/block/blk-core.c b/block/blk-core.c
index 80f3e72..a33775c 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -35,6 +35,8 @@
#include <linux/blk-cgroup.h>
#include <linux/debugfs.h>
#include <linux/bpf.h>
+#include <linux/psi.h>
+#include <linux/blk-crypto.h>
#define CREATE_TRACE_POINTS
#include <trace/events/block.h>
@@ -1059,7 +1061,6 @@ struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id,
mutex_init(&q->blk_trace_mutex);
#endif
mutex_init(&q->sysfs_lock);
- mutex_init(&q->sysfs_dir_lock);
spin_lock_init(&q->__queue_lock);
if (!q->mq_ops)
@@ -2464,7 +2465,9 @@ blk_qc_t generic_make_request(struct bio *bio)
/* Create a fresh bio_list for all subordinate requests */
bio_list_on_stack[1] = bio_list_on_stack[0];
bio_list_init(&bio_list_on_stack[0]);
- ret = q->make_request_fn(q, bio);
+
+ if (!blk_crypto_submit_bio(&bio))
+ ret = q->make_request_fn(q, bio);
/* sort new bios into those for a lower level
* and those for the same level
@@ -2513,7 +2516,7 @@ blk_qc_t direct_make_request(struct bio *bio)
{
struct request_queue *q = bio->bi_disk->queue;
bool nowait = bio->bi_opf & REQ_NOWAIT;
- blk_qc_t ret;
+ blk_qc_t ret = BLK_QC_T_NONE;
if (!generic_make_request_checks(bio))
return BLK_QC_T_NONE;
@@ -2527,7 +2530,8 @@ blk_qc_t direct_make_request(struct bio *bio)
return BLK_QC_T_NONE;
}
- ret = q->make_request_fn(q, bio);
+ if (!blk_crypto_submit_bio(&bio))
+ ret = q->make_request_fn(q, bio);
blk_queue_exit(q);
return ret;
}
@@ -2544,6 +2548,10 @@ EXPORT_SYMBOL_GPL(direct_make_request);
*/
blk_qc_t submit_bio(struct bio *bio)
{
+ bool workingset_read = false;
+ unsigned long pflags;
+ blk_qc_t ret;
+
/*
* If it's a regular read/write or a barrier with data attached,
* go through the normal accounting stuff before submission.
@@ -2559,6 +2567,8 @@ blk_qc_t submit_bio(struct bio *bio)
if (op_is_write(bio_op(bio))) {
count_vm_events(PGPGOUT, count);
} else {
+ if (bio_flagged(bio, BIO_WORKINGSET))
+ workingset_read = true;
task_io_account_read(bio->bi_iter.bi_size);
count_vm_events(PGPGIN, count);
}
@@ -2573,7 +2583,21 @@ blk_qc_t submit_bio(struct bio *bio)
}
}
- return generic_make_request(bio);
+ /*
+ * If we're reading data that is part of the userspace
+ * workingset, count submission time as memory stall. When the
+ * device is congested, or the submitting cgroup IO-throttled,
+ * submission can be a significant part of overall IO time.
+ */
+ if (workingset_read)
+ psi_memstall_enter(&pflags);
+
+ ret = generic_make_request(bio);
+
+ if (workingset_read)
+ psi_memstall_leave(&pflags);
+
+ return ret;
}
EXPORT_SYMBOL(submit_bio);
@@ -3974,5 +3998,11 @@ int __init blk_dev_init(void)
blk_debugfs_root = debugfs_create_dir("block", NULL);
#endif
+ if (bio_crypt_ctx_init() < 0)
+ panic("Failed to allocate mem for bio crypt ctxs\n");
+
+ if (blk_crypto_fallback_init() < 0)
+ panic("Failed to init blk-crypto-fallback\n");
+
return 0;
}
diff --git a/block/blk-crypto-fallback.c b/block/blk-crypto-fallback.c
new file mode 100644
index 0000000..ad83e10
--- /dev/null
+++ b/block/blk-crypto-fallback.c
@@ -0,0 +1,644 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2019 Google LLC
+ */
+
+/*
+ * Refer to Documentation/block/inline-encryption.rst for detailed explanation.
+ */
+
+#define pr_fmt(fmt) "blk-crypto-fallback: " fmt
+
+#include <crypto/skcipher.h>
+#include <linux/blk-cgroup.h>
+#include <linux/blk-crypto.h>
+#include <linux/crypto.h>
+#include <linux/keyslot-manager.h>
+#include <linux/mempool.h>
+#include <linux/module.h>
+#include <linux/random.h>
+
+#include "blk-crypto-internal.h"
+
+static unsigned int num_prealloc_bounce_pg = 32;
+module_param(num_prealloc_bounce_pg, uint, 0);
+MODULE_PARM_DESC(num_prealloc_bounce_pg,
+ "Number of preallocated bounce pages for the blk-crypto crypto API fallback");
+
+static unsigned int blk_crypto_num_keyslots = 100;
+module_param_named(num_keyslots, blk_crypto_num_keyslots, uint, 0);
+MODULE_PARM_DESC(num_keyslots,
+ "Number of keyslots for the blk-crypto crypto API fallback");
+
+static unsigned int num_prealloc_fallback_crypt_ctxs = 128;
+module_param(num_prealloc_fallback_crypt_ctxs, uint, 0);
+MODULE_PARM_DESC(num_prealloc_crypt_fallback_ctxs,
+ "Number of preallocated bio fallback crypto contexts for blk-crypto to use during crypto API fallback");
+
+struct bio_fallback_crypt_ctx {
+ struct bio_crypt_ctx crypt_ctx;
+ /*
+ * Copy of the bvec_iter when this bio was submitted.
+ * We only want to en/decrypt the part of the bio as described by the
+ * bvec_iter upon submission because bio might be split before being
+ * resubmitted
+ */
+ struct bvec_iter crypt_iter;
+ u64 fallback_dun[BLK_CRYPTO_DUN_ARRAY_SIZE];
+};
+
+/* The following few vars are only used during the crypto API fallback */
+static struct kmem_cache *bio_fallback_crypt_ctx_cache;
+static mempool_t *bio_fallback_crypt_ctx_pool;
+
+/*
+ * Allocating a crypto tfm during I/O can deadlock, so we have to preallocate
+ * all of a mode's tfms when that mode starts being used. Since each mode may
+ * need all the keyslots at some point, each mode needs its own tfm for each
+ * keyslot; thus, a keyslot may contain tfms for multiple modes. However, to
+ * match the behavior of real inline encryption hardware (which only supports a
+ * single encryption context per keyslot), we only allow one tfm per keyslot to
+ * be used at a time - the rest of the unused tfms have their keys cleared.
+ */
+static DEFINE_MUTEX(tfms_init_lock);
+static bool tfms_inited[BLK_ENCRYPTION_MODE_MAX];
+
+struct blk_crypto_decrypt_work {
+ struct work_struct work;
+ struct bio *bio;
+};
+
+static struct blk_crypto_keyslot {
+ struct crypto_skcipher *tfm;
+ enum blk_crypto_mode_num crypto_mode;
+ struct crypto_skcipher *tfms[BLK_ENCRYPTION_MODE_MAX];
+} *blk_crypto_keyslots;
+
+/* The following few vars are only used during the crypto API fallback */
+static struct keyslot_manager *blk_crypto_ksm;
+static struct workqueue_struct *blk_crypto_wq;
+static mempool_t *blk_crypto_bounce_page_pool;
+static struct kmem_cache *blk_crypto_decrypt_work_cache;
+
+bool bio_crypt_fallback_crypted(const struct bio_crypt_ctx *bc)
+{
+ return bc && bc->bc_ksm == blk_crypto_ksm;
+}
+
+/*
+ * This is the key we set when evicting a keyslot. This *should* be the all 0's
+ * key, but AES-XTS rejects that key, so we use some random bytes instead.
+ */
+static u8 blank_key[BLK_CRYPTO_MAX_KEY_SIZE];
+
+static void blk_crypto_evict_keyslot(unsigned int slot)
+{
+ struct blk_crypto_keyslot *slotp = &blk_crypto_keyslots[slot];
+ enum blk_crypto_mode_num crypto_mode = slotp->crypto_mode;
+ int err;
+
+ WARN_ON(slotp->crypto_mode == BLK_ENCRYPTION_MODE_INVALID);
+
+ /* Clear the key in the skcipher */
+ err = crypto_skcipher_setkey(slotp->tfms[crypto_mode], blank_key,
+ blk_crypto_modes[crypto_mode].keysize);
+ WARN_ON(err);
+ slotp->crypto_mode = BLK_ENCRYPTION_MODE_INVALID;
+}
+
+static int blk_crypto_keyslot_program(struct keyslot_manager *ksm,
+ const struct blk_crypto_key *key,
+ unsigned int slot)
+{
+ struct blk_crypto_keyslot *slotp = &blk_crypto_keyslots[slot];
+ const enum blk_crypto_mode_num crypto_mode = key->crypto_mode;
+ int err;
+
+ if (crypto_mode != slotp->crypto_mode &&
+ slotp->crypto_mode != BLK_ENCRYPTION_MODE_INVALID) {
+ blk_crypto_evict_keyslot(slot);
+ }
+
+ if (!slotp->tfms[crypto_mode])
+ return -ENOMEM;
+ slotp->crypto_mode = crypto_mode;
+ err = crypto_skcipher_setkey(slotp->tfms[crypto_mode], key->raw,
+ key->size);
+ if (err) {
+ blk_crypto_evict_keyslot(slot);
+ return err;
+ }
+ return 0;
+}
+
+static int blk_crypto_keyslot_evict(struct keyslot_manager *ksm,
+ const struct blk_crypto_key *key,
+ unsigned int slot)
+{
+ blk_crypto_evict_keyslot(slot);
+ return 0;
+}
+
+/*
+ * The crypto API fallback KSM ops - only used for a bio when it specifies a
+ * blk_crypto_mode for which we failed to get a keyslot in the device's inline
+ * encryption hardware (which probably means the device doesn't have inline
+ * encryption hardware that supports that crypto mode).
+ */
+static const struct keyslot_mgmt_ll_ops blk_crypto_ksm_ll_ops = {
+ .keyslot_program = blk_crypto_keyslot_program,
+ .keyslot_evict = blk_crypto_keyslot_evict,
+};
+
+static void blk_crypto_encrypt_endio(struct bio *enc_bio)
+{
+ struct bio *src_bio = enc_bio->bi_private;
+ int i;
+
+ for (i = 0; i < enc_bio->bi_vcnt; i++)
+ mempool_free(enc_bio->bi_io_vec[i].bv_page,
+ blk_crypto_bounce_page_pool);
+
+ src_bio->bi_status = enc_bio->bi_status;
+
+ bio_put(enc_bio);
+ bio_endio(src_bio);
+}
+
+static struct bio *blk_crypto_clone_bio(struct bio *bio_src)
+{
+ struct bvec_iter iter;
+ struct bio_vec bv;
+ struct bio *bio;
+
+ bio = bio_alloc_bioset(GFP_NOIO, bio_segments(bio_src), NULL);
+ if (!bio)
+ return NULL;
+ bio->bi_disk = bio_src->bi_disk;
+ bio->bi_opf = bio_src->bi_opf;
+ bio->bi_ioprio = bio_src->bi_ioprio;
+ bio->bi_write_hint = bio_src->bi_write_hint;
+ bio->bi_iter.bi_sector = bio_src->bi_iter.bi_sector;
+ bio->bi_iter.bi_size = bio_src->bi_iter.bi_size;
+
+ bio_for_each_segment(bv, bio_src, iter)
+ bio->bi_io_vec[bio->bi_vcnt++] = bv;
+
+ if (bio_integrity(bio_src) &&
+ bio_integrity_clone(bio, bio_src, GFP_NOIO) < 0) {
+ bio_put(bio);
+ return NULL;
+ }
+
+ bio_clone_blkcg_association(bio, bio_src);
+
+ bio_clone_skip_dm_default_key(bio, bio_src);
+
+ return bio;
+}
+
+static int blk_crypto_alloc_cipher_req(struct bio *src_bio,
+ struct skcipher_request **ciph_req_ret,
+ struct crypto_wait *wait)
+{
+ struct skcipher_request *ciph_req;
+ const struct blk_crypto_keyslot *slotp;
+
+ slotp = &blk_crypto_keyslots[src_bio->bi_crypt_context->bc_keyslot];
+ ciph_req = skcipher_request_alloc(slotp->tfms[slotp->crypto_mode],
+ GFP_NOIO);
+ if (!ciph_req) {
+ src_bio->bi_status = BLK_STS_RESOURCE;
+ return -ENOMEM;
+ }
+
+ skcipher_request_set_callback(ciph_req,
+ CRYPTO_TFM_REQ_MAY_BACKLOG |
+ CRYPTO_TFM_REQ_MAY_SLEEP,
+ crypto_req_done, wait);
+ *ciph_req_ret = ciph_req;
+ return 0;
+}
+
+static int blk_crypto_split_bio_if_needed(struct bio **bio_ptr)
+{
+ struct bio *bio = *bio_ptr;
+ unsigned int i = 0;
+ unsigned int num_sectors = 0;
+ struct bio_vec bv;
+ struct bvec_iter iter;
+
+ bio_for_each_segment(bv, bio, iter) {
+ num_sectors += bv.bv_len >> SECTOR_SHIFT;
+ if (++i == BIO_MAX_PAGES)
+ break;
+ }
+ if (num_sectors < bio_sectors(bio)) {
+ struct bio *split_bio;
+
+ split_bio = bio_split(bio, num_sectors, GFP_NOIO, NULL);
+ if (!split_bio) {
+ bio->bi_status = BLK_STS_RESOURCE;
+ return -ENOMEM;
+ }
+ bio_chain(split_bio, bio);
+ generic_make_request(bio);
+ *bio_ptr = split_bio;
+ }
+ return 0;
+}
+
+union blk_crypto_iv {
+ __le64 dun[BLK_CRYPTO_DUN_ARRAY_SIZE];
+ u8 bytes[BLK_CRYPTO_MAX_IV_SIZE];
+};
+
+static void blk_crypto_dun_to_iv(const u64 dun[BLK_CRYPTO_DUN_ARRAY_SIZE],
+ union blk_crypto_iv *iv)
+{
+ int i;
+
+ for (i = 0; i < BLK_CRYPTO_DUN_ARRAY_SIZE; i++)
+ iv->dun[i] = cpu_to_le64(dun[i]);
+}
+
+/*
+ * The crypto API fallback's encryption routine.
+ * Allocate a bounce bio for encryption, encrypt the input bio using crypto API,
+ * and replace *bio_ptr with the bounce bio. May split input bio if it's too
+ * large.
+ */
+static int blk_crypto_encrypt_bio(struct bio **bio_ptr)
+{
+ struct bio *src_bio;
+ struct skcipher_request *ciph_req = NULL;
+ DECLARE_CRYPTO_WAIT(wait);
+ u64 curr_dun[BLK_CRYPTO_DUN_ARRAY_SIZE];
+ union blk_crypto_iv iv;
+ struct scatterlist src, dst;
+ struct bio *enc_bio;
+ unsigned int i, j;
+ int data_unit_size;
+ struct bio_crypt_ctx *bc;
+ int err = 0;
+
+ /* Split the bio if it's too big for single page bvec */
+ err = blk_crypto_split_bio_if_needed(bio_ptr);
+ if (err)
+ return err;
+
+ src_bio = *bio_ptr;
+ bc = src_bio->bi_crypt_context;
+ data_unit_size = bc->bc_key->data_unit_size;
+
+ /* Allocate bounce bio for encryption */
+ enc_bio = blk_crypto_clone_bio(src_bio);
+ if (!enc_bio) {
+ src_bio->bi_status = BLK_STS_RESOURCE;
+ return -ENOMEM;
+ }
+
+ /*
+ * Use the crypto API fallback keyslot manager to get a crypto_skcipher
+ * for the algorithm and key specified for this bio.
+ */
+ err = bio_crypt_ctx_acquire_keyslot(bc, blk_crypto_ksm);
+ if (err) {
+ src_bio->bi_status = BLK_STS_IOERR;
+ goto out_put_enc_bio;
+ }
+
+ /* and then allocate an skcipher_request for it */
+ err = blk_crypto_alloc_cipher_req(src_bio, &ciph_req, &wait);
+ if (err)
+ goto out_release_keyslot;
+
+ memcpy(curr_dun, bc->bc_dun, sizeof(curr_dun));
+ sg_init_table(&src, 1);
+ sg_init_table(&dst, 1);
+
+ skcipher_request_set_crypt(ciph_req, &src, &dst, data_unit_size,
+ iv.bytes);
+
+ /* Encrypt each page in the bounce bio */
+ for (i = 0; i < enc_bio->bi_vcnt; i++) {
+ struct bio_vec *enc_bvec = &enc_bio->bi_io_vec[i];
+ struct page *plaintext_page = enc_bvec->bv_page;
+ struct page *ciphertext_page =
+ mempool_alloc(blk_crypto_bounce_page_pool, GFP_NOIO);
+
+ enc_bvec->bv_page = ciphertext_page;
+
+ if (!ciphertext_page) {
+ src_bio->bi_status = BLK_STS_RESOURCE;
+ err = -ENOMEM;
+ goto out_free_bounce_pages;
+ }
+
+ sg_set_page(&src, plaintext_page, data_unit_size,
+ enc_bvec->bv_offset);
+ sg_set_page(&dst, ciphertext_page, data_unit_size,
+ enc_bvec->bv_offset);
+
+ /* Encrypt each data unit in this page */
+ for (j = 0; j < enc_bvec->bv_len; j += data_unit_size) {
+ blk_crypto_dun_to_iv(curr_dun, &iv);
+ err = crypto_wait_req(crypto_skcipher_encrypt(ciph_req),
+ &wait);
+ if (err) {
+ i++;
+ src_bio->bi_status = BLK_STS_RESOURCE;
+ goto out_free_bounce_pages;
+ }
+ bio_crypt_dun_increment(curr_dun, 1);
+ src.offset += data_unit_size;
+ dst.offset += data_unit_size;
+ }
+ }
+
+ enc_bio->bi_private = src_bio;
+ enc_bio->bi_end_io = blk_crypto_encrypt_endio;
+ *bio_ptr = enc_bio;
+
+ enc_bio = NULL;
+ err = 0;
+ goto out_free_ciph_req;
+
+out_free_bounce_pages:
+ while (i > 0)
+ mempool_free(enc_bio->bi_io_vec[--i].bv_page,
+ blk_crypto_bounce_page_pool);
+out_free_ciph_req:
+ skcipher_request_free(ciph_req);
+out_release_keyslot:
+ bio_crypt_ctx_release_keyslot(bc);
+out_put_enc_bio:
+ if (enc_bio)
+ bio_put(enc_bio);
+
+ return err;
+}
+
+static void blk_crypto_free_fallback_crypt_ctx(struct bio *bio)
+{
+ mempool_free(container_of(bio->bi_crypt_context,
+ struct bio_fallback_crypt_ctx,
+ crypt_ctx),
+ bio_fallback_crypt_ctx_pool);
+ bio->bi_crypt_context = NULL;
+}
+
+/*
+ * The crypto API fallback's main decryption routine.
+ * Decrypts input bio in place.
+ */
+static void blk_crypto_decrypt_bio(struct work_struct *work)
+{
+ struct blk_crypto_decrypt_work *decrypt_work =
+ container_of(work, struct blk_crypto_decrypt_work, work);
+ struct bio *bio = decrypt_work->bio;
+ struct skcipher_request *ciph_req = NULL;
+ DECLARE_CRYPTO_WAIT(wait);
+ struct bio_vec bv;
+ struct bvec_iter iter;
+ u64 curr_dun[BLK_CRYPTO_DUN_ARRAY_SIZE];
+ union blk_crypto_iv iv;
+ struct scatterlist sg;
+ struct bio_crypt_ctx *bc = bio->bi_crypt_context;
+ struct bio_fallback_crypt_ctx *f_ctx =
+ container_of(bc, struct bio_fallback_crypt_ctx, crypt_ctx);
+ const int data_unit_size = bc->bc_key->data_unit_size;
+ unsigned int i;
+ int err;
+
+ /*
+ * Use the crypto API fallback keyslot manager to get a crypto_skcipher
+ * for the algorithm and key specified for this bio.
+ */
+ if (bio_crypt_ctx_acquire_keyslot(bc, blk_crypto_ksm)) {
+ bio->bi_status = BLK_STS_RESOURCE;
+ goto out_no_keyslot;
+ }
+
+ /* and then allocate an skcipher_request for it */
+ err = blk_crypto_alloc_cipher_req(bio, &ciph_req, &wait);
+ if (err)
+ goto out;
+
+ memcpy(curr_dun, f_ctx->fallback_dun, sizeof(curr_dun));
+ sg_init_table(&sg, 1);
+ skcipher_request_set_crypt(ciph_req, &sg, &sg, data_unit_size,
+ iv.bytes);
+
+ /* Decrypt each segment in the bio */
+ __bio_for_each_segment(bv, bio, iter, f_ctx->crypt_iter) {
+ struct page *page = bv.bv_page;
+
+ sg_set_page(&sg, page, data_unit_size, bv.bv_offset);
+
+ /* Decrypt each data unit in the segment */
+ for (i = 0; i < bv.bv_len; i += data_unit_size) {
+ blk_crypto_dun_to_iv(curr_dun, &iv);
+ if (crypto_wait_req(crypto_skcipher_decrypt(ciph_req),
+ &wait)) {
+ bio->bi_status = BLK_STS_IOERR;
+ goto out;
+ }
+ bio_crypt_dun_increment(curr_dun, 1);
+ sg.offset += data_unit_size;
+ }
+ }
+
+out:
+ skcipher_request_free(ciph_req);
+ bio_crypt_ctx_release_keyslot(bc);
+out_no_keyslot:
+ kmem_cache_free(blk_crypto_decrypt_work_cache, decrypt_work);
+ blk_crypto_free_fallback_crypt_ctx(bio);
+ bio_endio(bio);
+}
+
+/*
+ * Queue bio for decryption.
+ * Returns true iff bio was queued for decryption.
+ */
+bool blk_crypto_queue_decrypt_bio(struct bio *bio)
+{
+ struct blk_crypto_decrypt_work *decrypt_work;
+
+ /* If there was an IO error, don't queue for decrypt. */
+ if (bio->bi_status)
+ goto out;
+
+ decrypt_work = kmem_cache_zalloc(blk_crypto_decrypt_work_cache,
+ GFP_ATOMIC);
+ if (!decrypt_work) {
+ bio->bi_status = BLK_STS_RESOURCE;
+ goto out;
+ }
+
+ INIT_WORK(&decrypt_work->work, blk_crypto_decrypt_bio);
+ decrypt_work->bio = bio;
+ queue_work(blk_crypto_wq, &decrypt_work->work);
+
+ return true;
+out:
+ blk_crypto_free_fallback_crypt_ctx(bio);
+ return false;
+}
+
+/*
+ * Prepare blk-crypto-fallback for the specified crypto mode.
+ * Returns -ENOPKG if the needed crypto API support is missing.
+ */
+int blk_crypto_fallback_start_using_mode(enum blk_crypto_mode_num mode_num)
+{
+ const char *cipher_str = blk_crypto_modes[mode_num].cipher_str;
+ struct blk_crypto_keyslot *slotp;
+ unsigned int i;
+ int err = 0;
+
+ /*
+ * Fast path
+ * Ensure that updates to blk_crypto_keyslots[i].tfms[mode_num]
+ * for each i are visible before we try to access them.
+ */
+ if (likely(smp_load_acquire(&tfms_inited[mode_num])))
+ return 0;
+
+ mutex_lock(&tfms_init_lock);
+ if (likely(tfms_inited[mode_num]))
+ goto out;
+
+ for (i = 0; i < blk_crypto_num_keyslots; i++) {
+ slotp = &blk_crypto_keyslots[i];
+ slotp->tfms[mode_num] = crypto_alloc_skcipher(cipher_str, 0, 0);
+ if (IS_ERR(slotp->tfms[mode_num])) {
+ err = PTR_ERR(slotp->tfms[mode_num]);
+ if (err == -ENOENT) {
+ pr_warn_once("Missing crypto API support for \"%s\"\n",
+ cipher_str);
+ err = -ENOPKG;
+ }
+ slotp->tfms[mode_num] = NULL;
+ goto out_free_tfms;
+ }
+
+ crypto_skcipher_set_flags(slotp->tfms[mode_num],
+ CRYPTO_TFM_REQ_WEAK_KEY);
+ }
+
+ /*
+ * Ensure that updates to blk_crypto_keyslots[i].tfms[mode_num]
+ * for each i are visible before we set tfms_inited[mode_num].
+ */
+ smp_store_release(&tfms_inited[mode_num], true);
+ goto out;
+
+out_free_tfms:
+ for (i = 0; i < blk_crypto_num_keyslots; i++) {
+ slotp = &blk_crypto_keyslots[i];
+ crypto_free_skcipher(slotp->tfms[mode_num]);
+ slotp->tfms[mode_num] = NULL;
+ }
+out:
+ mutex_unlock(&tfms_init_lock);
+ return err;
+}
+
+int blk_crypto_fallback_evict_key(const struct blk_crypto_key *key)
+{
+ return keyslot_manager_evict_key(blk_crypto_ksm, key);
+}
+
+int blk_crypto_fallback_submit_bio(struct bio **bio_ptr)
+{
+ struct bio *bio = *bio_ptr;
+ struct bio_crypt_ctx *bc = bio->bi_crypt_context;
+ struct bio_fallback_crypt_ctx *f_ctx;
+
+ if (bc->bc_key->is_hw_wrapped) {
+ pr_warn_once("HW wrapped key cannot be used with fallback.\n");
+ bio->bi_status = BLK_STS_NOTSUPP;
+ return -EOPNOTSUPP;
+ }
+
+ if (!tfms_inited[bc->bc_key->crypto_mode]) {
+ bio->bi_status = BLK_STS_IOERR;
+ return -EIO;
+ }
+
+ if (bio_data_dir(bio) == WRITE)
+ return blk_crypto_encrypt_bio(bio_ptr);
+
+ /*
+ * Mark bio as fallback crypted and replace the bio_crypt_ctx with
+ * another one contained in a bio_fallback_crypt_ctx, so that the
+ * fallback has space to store the info it needs for decryption.
+ */
+ bc->bc_ksm = blk_crypto_ksm;
+ f_ctx = mempool_alloc(bio_fallback_crypt_ctx_pool, GFP_NOIO);
+ f_ctx->crypt_ctx = *bc;
+ memcpy(f_ctx->fallback_dun, bc->bc_dun, sizeof(f_ctx->fallback_dun));
+ f_ctx->crypt_iter = bio->bi_iter;
+
+ bio_crypt_free_ctx(bio);
+ bio->bi_crypt_context = &f_ctx->crypt_ctx;
+
+ return 0;
+}
+
+int __init blk_crypto_fallback_init(void)
+{
+ int i;
+ unsigned int crypto_mode_supported[BLK_ENCRYPTION_MODE_MAX];
+
+ prandom_bytes(blank_key, BLK_CRYPTO_MAX_KEY_SIZE);
+
+ /* All blk-crypto modes have a crypto API fallback. */
+ for (i = 0; i < BLK_ENCRYPTION_MODE_MAX; i++)
+ crypto_mode_supported[i] = 0xFFFFFFFF;
+ crypto_mode_supported[BLK_ENCRYPTION_MODE_INVALID] = 0;
+
+ blk_crypto_ksm = keyslot_manager_create(
+ NULL, blk_crypto_num_keyslots,
+ &blk_crypto_ksm_ll_ops,
+ BLK_CRYPTO_FEATURE_STANDARD_KEYS,
+ crypto_mode_supported, NULL);
+ if (!blk_crypto_ksm)
+ return -ENOMEM;
+
+ blk_crypto_wq = alloc_workqueue("blk_crypto_wq",
+ WQ_UNBOUND | WQ_HIGHPRI |
+ WQ_MEM_RECLAIM, num_online_cpus());
+ if (!blk_crypto_wq)
+ return -ENOMEM;
+
+ blk_crypto_keyslots = kcalloc(blk_crypto_num_keyslots,
+ sizeof(blk_crypto_keyslots[0]),
+ GFP_KERNEL);
+ if (!blk_crypto_keyslots)
+ return -ENOMEM;
+
+ blk_crypto_bounce_page_pool =
+ mempool_create_page_pool(num_prealloc_bounce_pg, 0);
+ if (!blk_crypto_bounce_page_pool)
+ return -ENOMEM;
+
+ blk_crypto_decrypt_work_cache = KMEM_CACHE(blk_crypto_decrypt_work,
+ SLAB_RECLAIM_ACCOUNT);
+ if (!blk_crypto_decrypt_work_cache)
+ return -ENOMEM;
+
+ bio_fallback_crypt_ctx_cache = KMEM_CACHE(bio_fallback_crypt_ctx, 0);
+ if (!bio_fallback_crypt_ctx_cache)
+ return -ENOMEM;
+
+ bio_fallback_crypt_ctx_pool =
+ mempool_create_slab_pool(num_prealloc_fallback_crypt_ctxs,
+ bio_fallback_crypt_ctx_cache);
+ if (!bio_fallback_crypt_ctx_pool)
+ return -ENOMEM;
+
+ return 0;
+}
diff --git a/block/blk-crypto-internal.h b/block/blk-crypto-internal.h
new file mode 100644
index 0000000..4da998c
--- /dev/null
+++ b/block/blk-crypto-internal.h
@@ -0,0 +1,67 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2019 Google LLC
+ */
+
+#ifndef __LINUX_BLK_CRYPTO_INTERNAL_H
+#define __LINUX_BLK_CRYPTO_INTERNAL_H
+
+#include <linux/bio.h>
+
+/* Represents a crypto mode supported by blk-crypto */
+struct blk_crypto_mode {
+ const char *cipher_str; /* crypto API name (for fallback case) */
+ unsigned int keysize; /* key size in bytes */
+ unsigned int ivsize; /* iv size in bytes */
+};
+
+extern const struct blk_crypto_mode blk_crypto_modes[];
+
+#ifdef CONFIG_BLK_INLINE_ENCRYPTION_FALLBACK
+
+int blk_crypto_fallback_start_using_mode(enum blk_crypto_mode_num mode_num);
+
+int blk_crypto_fallback_submit_bio(struct bio **bio_ptr);
+
+bool blk_crypto_queue_decrypt_bio(struct bio *bio);
+
+int blk_crypto_fallback_evict_key(const struct blk_crypto_key *key);
+
+bool bio_crypt_fallback_crypted(const struct bio_crypt_ctx *bc);
+
+#else /* CONFIG_BLK_INLINE_ENCRYPTION_FALLBACK */
+
+static inline int
+blk_crypto_fallback_start_using_mode(enum blk_crypto_mode_num mode_num)
+{
+ pr_warn_once("crypto API fallback is disabled\n");
+ return -ENOPKG;
+}
+
+static inline bool bio_crypt_fallback_crypted(const struct bio_crypt_ctx *bc)
+{
+ return false;
+}
+
+static inline int blk_crypto_fallback_submit_bio(struct bio **bio_ptr)
+{
+ pr_warn_once("crypto API fallback disabled; failing request\n");
+ (*bio_ptr)->bi_status = BLK_STS_NOTSUPP;
+ return -EIO;
+}
+
+static inline bool blk_crypto_queue_decrypt_bio(struct bio *bio)
+{
+ WARN_ON(1);
+ return false;
+}
+
+static inline int
+blk_crypto_fallback_evict_key(const struct blk_crypto_key *key)
+{
+ return 0;
+}
+
+#endif /* CONFIG_BLK_INLINE_ENCRYPTION_FALLBACK */
+
+#endif /* __LINUX_BLK_CRYPTO_INTERNAL_H */
diff --git a/block/blk-crypto.c b/block/blk-crypto.c
new file mode 100644
index 0000000..e07a37c
--- /dev/null
+++ b/block/blk-crypto.c
@@ -0,0 +1,306 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2019 Google LLC
+ */
+
+/*
+ * Refer to Documentation/block/inline-encryption.rst for detailed explanation.
+ */
+
+#define pr_fmt(fmt) "blk-crypto: " fmt
+
+#include <linux/blk-crypto.h>
+#include <linux/blkdev.h>
+#include <linux/keyslot-manager.h>
+#include <linux/random.h>
+#include <linux/siphash.h>
+
+#include "blk-crypto-internal.h"
+
+const struct blk_crypto_mode blk_crypto_modes[] = {
+ [BLK_ENCRYPTION_MODE_AES_256_XTS] = {
+ .cipher_str = "xts(aes)",
+ .keysize = 64,
+ .ivsize = 16,
+ },
+ [BLK_ENCRYPTION_MODE_AES_128_CBC_ESSIV] = {
+ .cipher_str = "essiv(cbc(aes),sha256)",
+ .keysize = 16,
+ .ivsize = 16,
+ },
+ [BLK_ENCRYPTION_MODE_ADIANTUM] = {
+ .cipher_str = "adiantum(xchacha12,aes)",
+ .keysize = 32,
+ .ivsize = 32,
+ },
+};
+
+/* Check that all I/O segments are data unit aligned */
+static int bio_crypt_check_alignment(struct bio *bio)
+{
+ const unsigned int data_unit_size =
+ bio->bi_crypt_context->bc_key->data_unit_size;
+ struct bvec_iter iter;
+ struct bio_vec bv;
+
+ bio_for_each_segment(bv, bio, iter) {
+ if (!IS_ALIGNED(bv.bv_len | bv.bv_offset, data_unit_size))
+ return -EIO;
+ }
+ return 0;
+}
+
+/**
+ * blk_crypto_submit_bio - handle submitting bio for inline encryption
+ *
+ * @bio_ptr: pointer to original bio pointer
+ *
+ * If the bio doesn't have inline encryption enabled or the submitter already
+ * specified a keyslot for the target device, do nothing. Else, a raw key must
+ * have been provided, so acquire a device keyslot for it if supported. Else,
+ * use the crypto API fallback.
+ *
+ * When the crypto API fallback is used for encryption, blk-crypto may choose to
+ * split the bio into 2 - the first one that will continue to be processed and
+ * the second one that will be resubmitted via generic_make_request.
+ * A bounce bio will be allocated to encrypt the contents of the aforementioned
+ * "first one", and *bio_ptr will be updated to this bounce bio.
+ *
+ * Return: 0 if bio submission should continue; nonzero if bio_endio() was
+ * already called so bio submission should abort.
+ */
+int blk_crypto_submit_bio(struct bio **bio_ptr)
+{
+ struct bio *bio = *bio_ptr;
+ struct request_queue *q;
+ struct bio_crypt_ctx *bc = bio->bi_crypt_context;
+ int err;
+
+ if (!bc || !bio_has_data(bio))
+ return 0;
+
+ /*
+ * When a read bio is marked for fallback decryption, its bi_iter is
+ * saved so that when we decrypt the bio later, we know what part of it
+ * was marked for fallback decryption (when the bio is passed down after
+ * blk_crypto_submit bio, it may be split or advanced so we cannot rely
+ * on the bi_iter while decrypting in blk_crypto_endio)
+ */
+ if (bio_crypt_fallback_crypted(bc))
+ return 0;
+
+ err = bio_crypt_check_alignment(bio);
+ if (err) {
+ bio->bi_status = BLK_STS_IOERR;
+ goto out;
+ }
+
+ q = bio->bi_disk->queue;
+
+ if (bc->bc_ksm) {
+ /* Key already programmed into device? */
+ if (q->ksm == bc->bc_ksm)
+ return 0;
+
+ /* Nope, release the existing keyslot. */
+ bio_crypt_ctx_release_keyslot(bc);
+ }
+
+ /* Get device keyslot if supported */
+ if (keyslot_manager_crypto_mode_supported(q->ksm,
+ bc->bc_key->crypto_mode,
+ blk_crypto_key_dun_bytes(bc->bc_key),
+ bc->bc_key->data_unit_size,
+ bc->bc_key->is_hw_wrapped)) {
+ err = bio_crypt_ctx_acquire_keyslot(bc, q->ksm);
+ if (!err)
+ return 0;
+
+ pr_warn_once("Failed to acquire keyslot for %s (err=%d). Falling back to crypto API.\n",
+ bio->bi_disk->disk_name, err);
+ }
+
+ /* Fallback to crypto API */
+ err = blk_crypto_fallback_submit_bio(bio_ptr);
+ if (err)
+ goto out;
+
+ return 0;
+out:
+ bio_endio(*bio_ptr);
+ return err;
+}
+
+/**
+ * blk_crypto_endio - clean up bio w.r.t inline encryption during bio_endio
+ *
+ * @bio: the bio to clean up
+ *
+ * If blk_crypto_submit_bio decided to fallback to crypto API for this bio,
+ * we queue the bio for decryption into a workqueue and return false,
+ * and call bio_endio(bio) at a later time (after the bio has been decrypted).
+ *
+ * If the bio is not to be decrypted by the crypto API, this function releases
+ * the reference to the keyslot that blk_crypto_submit_bio got.
+ *
+ * Return: true if bio_endio should continue; false otherwise (bio_endio will
+ * be called again when bio has been decrypted).
+ */
+bool blk_crypto_endio(struct bio *bio)
+{
+ struct bio_crypt_ctx *bc = bio->bi_crypt_context;
+
+ if (!bc)
+ return true;
+
+ if (bio_crypt_fallback_crypted(bc)) {
+ /*
+ * The only bios who's crypto is handled by the blk-crypto
+ * fallback when they reach here are those with
+ * bio_data_dir(bio) == READ, since WRITE bios that are
+ * encrypted by the crypto API fallback are handled by
+ * blk_crypto_encrypt_endio().
+ */
+ return !blk_crypto_queue_decrypt_bio(bio);
+ }
+
+ if (bc->bc_keyslot >= 0)
+ bio_crypt_ctx_release_keyslot(bc);
+
+ return true;
+}
+
+/**
+ * blk_crypto_init_key() - Prepare a key for use with blk-crypto
+ * @blk_key: Pointer to the blk_crypto_key to initialize.
+ * @raw_key: Pointer to the raw key.
+ * @raw_key_size: Size of raw key. Must be at least the required size for the
+ * chosen @crypto_mode; see blk_crypto_modes[]. (It's allowed
+ * to be longer than the mode's actual key size, in order to
+ * support inline encryption hardware that accepts wrapped keys.
+ * @is_hw_wrapped has to be set for such keys)
+ * @is_hw_wrapped: Denotes @raw_key is wrapped.
+ * @crypto_mode: identifier for the encryption algorithm to use
+ * @dun_bytes: number of bytes that will be used to specify the DUN when this
+ * key is used
+ * @data_unit_size: the data unit size to use for en/decryption
+ *
+ * Return: The blk_crypto_key that was prepared, or an ERR_PTR() on error. When
+ * done using the key, it must be freed with blk_crypto_free_key().
+ */
+int blk_crypto_init_key(struct blk_crypto_key *blk_key,
+ const u8 *raw_key, unsigned int raw_key_size,
+ bool is_hw_wrapped,
+ enum blk_crypto_mode_num crypto_mode,
+ unsigned int dun_bytes,
+ unsigned int data_unit_size)
+{
+ const struct blk_crypto_mode *mode;
+ static siphash_key_t hash_key;
+ u32 hash;
+
+ memset(blk_key, 0, sizeof(*blk_key));
+
+ if (crypto_mode >= ARRAY_SIZE(blk_crypto_modes))
+ return -EINVAL;
+
+ BUILD_BUG_ON(BLK_CRYPTO_MAX_WRAPPED_KEY_SIZE < BLK_CRYPTO_MAX_KEY_SIZE);
+
+ mode = &blk_crypto_modes[crypto_mode];
+ if (is_hw_wrapped) {
+ if (raw_key_size < mode->keysize ||
+ raw_key_size > BLK_CRYPTO_MAX_WRAPPED_KEY_SIZE)
+ return -EINVAL;
+ } else {
+ if (raw_key_size != mode->keysize)
+ return -EINVAL;
+ }
+
+ if (dun_bytes <= 0 || dun_bytes > BLK_CRYPTO_MAX_IV_SIZE)
+ return -EINVAL;
+
+ if (!is_power_of_2(data_unit_size))
+ return -EINVAL;
+
+ blk_key->crypto_mode = crypto_mode;
+ blk_key->data_unit_size = data_unit_size;
+ blk_key->data_unit_size_bits = ilog2(data_unit_size);
+ blk_key->size = raw_key_size;
+ blk_key->is_hw_wrapped = is_hw_wrapped;
+ memcpy(blk_key->raw, raw_key, raw_key_size);
+
+ /*
+ * The keyslot manager uses the SipHash of the key to implement O(1) key
+ * lookups while avoiding leaking information about the keys. It's
+ * precomputed here so that it only needs to be computed once per key.
+ */
+ get_random_once(&hash_key, sizeof(hash_key));
+ hash = (u32)siphash(raw_key, raw_key_size, &hash_key);
+ blk_crypto_key_set_hash_and_dun_bytes(blk_key, hash, dun_bytes);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(blk_crypto_init_key);
+
+/**
+ * blk_crypto_start_using_mode() - Start using blk-crypto on a device
+ * @crypto_mode: the crypto mode that will be used
+ * @dun_bytes: number of bytes that will be used to specify the DUN
+ * @data_unit_size: the data unit size that will be used
+ * @is_hw_wrapped_key: whether the key will be hardware-wrapped
+ * @q: the request queue for the device
+ *
+ * Upper layers must call this function to ensure that either the hardware
+ * supports the needed crypto settings, or the crypto API fallback has
+ * transforms for the needed mode allocated and ready to go.
+ *
+ * Return: 0 on success; -ENOPKG if the hardware doesn't support the crypto
+ * settings and blk-crypto-fallback is either disabled or the needed
+ * algorithm is disabled in the crypto API; or another -errno code.
+ */
+int blk_crypto_start_using_mode(enum blk_crypto_mode_num crypto_mode,
+ unsigned int dun_bytes,
+ unsigned int data_unit_size,
+ bool is_hw_wrapped_key,
+ struct request_queue *q)
+{
+ if (keyslot_manager_crypto_mode_supported(q->ksm, crypto_mode,
+ dun_bytes, data_unit_size,
+ is_hw_wrapped_key))
+ return 0;
+ if (is_hw_wrapped_key) {
+ pr_warn_once("hardware doesn't support wrapped keys\n");
+ return -EOPNOTSUPP;
+ }
+ return blk_crypto_fallback_start_using_mode(crypto_mode);
+}
+EXPORT_SYMBOL_GPL(blk_crypto_start_using_mode);
+
+/**
+ * blk_crypto_evict_key() - Evict a key from any inline encryption hardware
+ * it may have been programmed into
+ * @q: The request queue who's keyslot manager this key might have been
+ * programmed into
+ * @key: The key to evict
+ *
+ * Upper layers (filesystems) should call this function to ensure that a key
+ * is evicted from hardware that it might have been programmed into. This
+ * will call keyslot_manager_evict_key on the queue's keyslot manager, if one
+ * exists, and supports the crypto algorithm with the specified data unit size.
+ * Otherwise, it will evict the key from the blk-crypto-fallback's ksm.
+ *
+ * Return: 0 on success, -err on error.
+ */
+int blk_crypto_evict_key(struct request_queue *q,
+ const struct blk_crypto_key *key)
+{
+ if (q->ksm &&
+ keyslot_manager_crypto_mode_supported(q->ksm, key->crypto_mode,
+ blk_crypto_key_dun_bytes(key),
+ key->data_unit_size,
+ key->is_hw_wrapped))
+ return keyslot_manager_evict_key(q->ksm, key);
+
+ return blk_crypto_fallback_evict_key(key);
+}
+EXPORT_SYMBOL_GPL(blk_crypto_evict_key);
diff --git a/block/blk-iolatency.c b/block/blk-iolatency.c
index 019cf00..ebc2bdc 100644
--- a/block/blk-iolatency.c
+++ b/block/blk-iolatency.c
@@ -141,7 +141,7 @@ struct iolatency_grp {
#define BLKIOLATENCY_MAX_WIN_SIZE NSEC_PER_SEC
/*
* These are the constants used to fake the fixed-point moving average
- * calculation just like load average. The call to CALC_LOAD folds
+ * calculation just like load average. The call to calc_load() folds
* (FIXED_1 (2048) - exp_factor) * new_sample into lat_avg. The sampling
* window size is bucketed to try to approximately calculate average
* latency such that 1/exp (decay rate) is [1 min, 2.5 min) when windows
@@ -505,7 +505,7 @@ static void iolatency_check_latencies(struct iolatency_grp *iolat, u64 now)
lat_info = &parent->child_lat;
/*
- * CALC_LOAD takes in a number stored in fixed point representation.
+ * calc_load() takes in a number stored in fixed point representation.
* Because we are using this for IO time in ns, the values stored
* are significantly larger than the FIXED_1 denominator (2048).
* Therefore, rounding errors in the calculation are negligible and
@@ -514,7 +514,9 @@ static void iolatency_check_latencies(struct iolatency_grp *iolat, u64 now)
exp_idx = min_t(int, BLKIOLATENCY_NR_EXP_FACTORS - 1,
div64_u64(iolat->cur_win_nsec,
BLKIOLATENCY_EXP_BUCKET_SIZE));
- CALC_LOAD(iolat->lat_avg, iolatency_exp_factors[exp_idx], stat.mean);
+ iolat->lat_avg = calc_load(iolat->lat_avg,
+ iolatency_exp_factors[exp_idx],
+ stat.mean);
/* Everything is ok and we don't need to adjust the scale. */
if (stat.mean <= iolat->min_lat_nsec &&
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 7efa8c3..3e32f6a 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -514,6 +514,8 @@ int ll_back_merge_fn(struct request_queue *q, struct request *req,
req_set_nomerge(q, req);
return 0;
}
+ if (!bio_crypt_ctx_mergeable(req->bio, blk_rq_bytes(req), bio))
+ return 0;
if (!bio_flagged(req->biotail, BIO_SEG_VALID))
blk_recount_segments(q, req->biotail);
if (!bio_flagged(bio, BIO_SEG_VALID))
@@ -536,6 +538,8 @@ int ll_front_merge_fn(struct request_queue *q, struct request *req,
req_set_nomerge(q, req);
return 0;
}
+ if (!bio_crypt_ctx_mergeable(bio, bio->bi_iter.bi_size, req->bio))
+ return 0;
if (!bio_flagged(bio, BIO_SEG_VALID))
blk_recount_segments(q, bio);
if (!bio_flagged(req->bio, BIO_SEG_VALID))
@@ -612,6 +616,9 @@ static int ll_merge_requests_fn(struct request_queue *q, struct request *req,
if (blk_integrity_merge_rq(q, req, next) == false)
return 0;
+ if (!bio_crypt_ctx_mergeable(req->bio, blk_rq_bytes(req), next->bio))
+ return 0;
+
/* Merge is OK... */
req->nr_phys_segments = total_phys_segments;
return 1;
@@ -859,6 +866,10 @@ bool blk_rq_merge_ok(struct request *rq, struct bio *bio)
if (rq->write_hint != bio->bi_write_hint)
return false;
+ /* Only merge if the crypt contexts are compatible */
+ if (!bio_crypt_ctx_compatible(bio, rq->bio))
+ return false;
+
return true;
}
diff --git a/block/blk-mq-sysfs.c b/block/blk-mq-sysfs.c
index 5e4b7ed..5006a0d 100644
--- a/block/blk-mq-sysfs.c
+++ b/block/blk-mq-sysfs.c
@@ -264,7 +264,7 @@ void blk_mq_unregister_dev(struct device *dev, struct request_queue *q)
struct blk_mq_hw_ctx *hctx;
int i;
- lockdep_assert_held(&q->sysfs_dir_lock);
+ lockdep_assert_held(&q->sysfs_lock);
queue_for_each_hw_ctx(q, hctx, i)
blk_mq_unregister_hctx(hctx);
@@ -312,7 +312,7 @@ int __blk_mq_register_dev(struct device *dev, struct request_queue *q)
int ret, i;
WARN_ON_ONCE(!q->kobj.parent);
- lockdep_assert_held(&q->sysfs_dir_lock);
+ lockdep_assert_held(&q->sysfs_lock);
ret = kobject_add(&q->mq_kobj, kobject_get(&dev->kobj), "%s", "mq");
if (ret < 0)
@@ -358,7 +358,7 @@ void blk_mq_sysfs_unregister(struct request_queue *q)
struct blk_mq_hw_ctx *hctx;
int i;
- mutex_lock(&q->sysfs_dir_lock);
+ mutex_lock(&q->sysfs_lock);
if (!q->mq_sysfs_init_done)
goto unlock;
@@ -366,7 +366,7 @@ void blk_mq_sysfs_unregister(struct request_queue *q)
blk_mq_unregister_hctx(hctx);
unlock:
- mutex_unlock(&q->sysfs_dir_lock);
+ mutex_unlock(&q->sysfs_lock);
}
int blk_mq_sysfs_register(struct request_queue *q)
@@ -374,7 +374,7 @@ int blk_mq_sysfs_register(struct request_queue *q)
struct blk_mq_hw_ctx *hctx;
int i, ret = 0;
- mutex_lock(&q->sysfs_dir_lock);
+ mutex_lock(&q->sysfs_lock);
if (!q->mq_sysfs_init_done)
goto unlock;
@@ -385,7 +385,7 @@ int blk_mq_sysfs_register(struct request_queue *q)
}
unlock:
- mutex_unlock(&q->sysfs_dir_lock);
+ mutex_unlock(&q->sysfs_lock);
return ret;
}
diff --git a/block/blk-mq-virtio.c b/block/blk-mq-virtio.c
index c3afbca..a111b06 100644
--- a/block/blk-mq-virtio.c
+++ b/block/blk-mq-virtio.c
@@ -52,3 +52,6 @@ int blk_mq_virtio_map_queues(struct blk_mq_tag_set *set,
return blk_mq_map_queues(set);
}
EXPORT_SYMBOL_GPL(blk_mq_virtio_map_queues);
+
+MODULE_DESCRIPTION("Virtio Device Default Queue Mapping");
+MODULE_LICENSE("GPL v2");
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index 07494de..0a7636d 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -892,7 +892,6 @@ int blk_register_queue(struct gendisk *disk)
int ret;
struct device *dev = disk_to_dev(disk);
struct request_queue *q = disk->queue;
- bool has_elevator = false;
if (WARN_ON(!q))
return -ENXIO;
@@ -900,6 +899,7 @@ int blk_register_queue(struct gendisk *disk)
WARN_ONCE(blk_queue_registered(q),
"%s is registering an already registered queue\n",
kobject_name(&dev->kobj));
+ queue_flag_set_unlocked(QUEUE_FLAG_REGISTERED, q);
/*
* SCSI probing may synchronously create and destroy a lot of
@@ -920,7 +920,8 @@ int blk_register_queue(struct gendisk *disk)
if (ret)
return ret;
- mutex_lock(&q->sysfs_dir_lock);
+ /* Prevent changes through sysfs until registration is completed. */
+ mutex_lock(&q->sysfs_lock);
ret = kobject_add(&q->kobj, kobject_get(&dev->kobj), "%s", "queue");
if (ret < 0) {
@@ -933,37 +934,26 @@ int blk_register_queue(struct gendisk *disk)
blk_mq_debugfs_register(q);
}
- mutex_lock(&q->sysfs_lock);
- /*
- * The flag of QUEUE_FLAG_REGISTERED isn't set yet, so elevator
- * switch won't happen at all.
- */
+ kobject_uevent(&q->kobj, KOBJ_ADD);
+
+ wbt_enable_default(q);
+
+ blk_throtl_register_queue(q);
+
if (q->request_fn || (q->mq_ops && q->elevator)) {
- ret = elv_register_queue(q, false);
+ ret = elv_register_queue(q);
if (ret) {
mutex_unlock(&q->sysfs_lock);
- mutex_unlock(&q->sysfs_dir_lock);
+ kobject_uevent(&q->kobj, KOBJ_REMOVE);
kobject_del(&q->kobj);
blk_trace_remove_sysfs(dev);
kobject_put(&dev->kobj);
return ret;
}
- has_elevator = true;
}
-
- blk_queue_flag_set(QUEUE_FLAG_REGISTERED, q);
- wbt_enable_default(q);
- blk_throtl_register_queue(q);
-
- /* Now everything is ready and send out KOBJ_ADD uevent */
- kobject_uevent(&q->kobj, KOBJ_ADD);
- if (has_elevator)
- kobject_uevent(&q->elevator->kobj, KOBJ_ADD);
- mutex_unlock(&q->sysfs_lock);
-
ret = 0;
unlock:
- mutex_unlock(&q->sysfs_dir_lock);
+ mutex_unlock(&q->sysfs_lock);
return ret;
}
EXPORT_SYMBOL_GPL(blk_register_queue);
@@ -992,30 +982,25 @@ void blk_unregister_queue(struct gendisk *disk)
* concurrent elv_iosched_store() calls.
*/
mutex_lock(&q->sysfs_lock);
- blk_queue_flag_clear(QUEUE_FLAG_REGISTERED, q);
- mutex_unlock(&q->sysfs_lock);
- mutex_lock(&q->sysfs_dir_lock);
+ blk_queue_flag_clear(QUEUE_FLAG_REGISTERED, q);
+
/*
* Remove the sysfs attributes before unregistering the queue data
* structures that can be modified through sysfs.
*/
if (q->mq_ops)
blk_mq_unregister_dev(disk_to_dev(disk), q);
+ mutex_unlock(&q->sysfs_lock);
kobject_uevent(&q->kobj, KOBJ_REMOVE);
kobject_del(&q->kobj);
blk_trace_remove_sysfs(disk_to_dev(disk));
mutex_lock(&q->sysfs_lock);
- /*
- * q->kobj has been removed, so it is safe to check if elevator
- * exists without holding q->sysfs_lock.
- */
- if (q->request_fn || q->elevator)
+ if (q->request_fn || (q->mq_ops && q->elevator))
elv_unregister_queue(q);
mutex_unlock(&q->sysfs_lock);
- mutex_unlock(&q->sysfs_dir_lock);
kobject_put(&disk_to_dev(disk)->kobj);
}
diff --git a/block/blk.h b/block/blk.h
index ae87e2a..1a5b67b 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -244,7 +244,7 @@ int elevator_init_mq(struct request_queue *q);
int elevator_switch_mq(struct request_queue *q,
struct elevator_type *new_e);
void elevator_exit(struct request_queue *, struct elevator_queue *);
-int elv_register_queue(struct request_queue *q, bool uevent);
+int elv_register_queue(struct request_queue *q);
void elv_unregister_queue(struct request_queue *q);
struct hd_struct *__disk_get_part(struct gendisk *disk, int partno);
diff --git a/block/bounce.c b/block/bounce.c
index abb50e7..dc37375 100644
--- a/block/bounce.c
+++ b/block/bounce.c
@@ -267,14 +267,12 @@ static struct bio *bounce_clone_bio(struct bio *bio_src, gfp_t gfp_mask,
break;
}
- if (bio_integrity(bio_src)) {
- int ret;
+ bio_crypt_clone(bio, bio_src, gfp_mask);
- ret = bio_integrity_clone(bio, bio_src, gfp_mask);
- if (ret < 0) {
- bio_put(bio);
- return NULL;
- }
+ if (bio_integrity(bio_src) &&
+ bio_integrity_clone(bio, bio_src, gfp_mask) < 0) {
+ bio_put(bio);
+ return NULL;
}
bio_clone_blkcg_association(bio, bio_src);
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index 2eb8744..9ad5211 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -225,6 +225,7 @@ struct cfq_group_data {
unsigned int weight;
unsigned int leaf_weight;
+ u64 group_idle;
};
/* This is per cgroup per device grouping structure */
@@ -310,6 +311,7 @@ struct cfq_group {
struct cfq_queue *async_cfqq[2][IOPRIO_BE_NR];
struct cfq_queue *async_idle_cfqq;
+ u64 group_idle;
};
struct cfq_io_cq {
@@ -805,6 +807,17 @@ static inline void cfqg_stats_update_completion(struct cfq_group *cfqg,
#endif /* CONFIG_CFQ_GROUP_IOSCHED */
+static inline u64 get_group_idle(struct cfq_data *cfqd)
+{
+#ifdef CONFIG_CFQ_GROUP_IOSCHED
+ struct cfq_queue *cfqq = cfqd->active_queue;
+
+ if (cfqq && cfqq->cfqg)
+ return cfqq->cfqg->group_idle;
+#endif
+ return cfqd->cfq_group_idle;
+}
+
#define cfq_log(cfqd, fmt, args...) \
blk_add_trace_msg((cfqd)->queue, "cfq " fmt, ##args)
@@ -825,7 +838,7 @@ static inline bool cfq_io_thinktime_big(struct cfq_data *cfqd,
if (!sample_valid(ttime->ttime_samples))
return false;
if (group_idle)
- slice = cfqd->cfq_group_idle;
+ slice = get_group_idle(cfqd);
else
slice = cfqd->cfq_slice_idle;
return ttime->ttime_mean > slice;
@@ -1592,6 +1605,7 @@ static void cfq_cpd_init(struct blkcg_policy_data *cpd)
cgd->weight = weight;
cgd->leaf_weight = weight;
+ cgd->group_idle = cfq_group_idle;
}
static void cfq_cpd_free(struct blkcg_policy_data *cpd)
@@ -1636,6 +1650,7 @@ static void cfq_pd_init(struct blkg_policy_data *pd)
cfqg->weight = cgd->weight;
cfqg->leaf_weight = cgd->leaf_weight;
+ cfqg->group_idle = cgd->group_idle;
}
static void cfq_pd_offline(struct blkg_policy_data *pd)
@@ -1757,6 +1772,19 @@ static int cfq_print_leaf_weight(struct seq_file *sf, void *v)
return 0;
}
+static int cfq_print_group_idle(struct seq_file *sf, void *v)
+{
+ struct blkcg *blkcg = css_to_blkcg(seq_css(sf));
+ struct cfq_group_data *cgd = blkcg_to_cfqgd(blkcg);
+ u64 val = 0;
+
+ if (cgd)
+ val = cgd->group_idle;
+
+ seq_printf(sf, "%llu\n", div_u64(val, NSEC_PER_USEC));
+ return 0;
+}
+
static ssize_t __cfqg_set_weight_device(struct kernfs_open_file *of,
char *buf, size_t nbytes, loff_t off,
bool on_dfl, bool is_leaf_weight)
@@ -1878,6 +1906,37 @@ static int cfq_set_leaf_weight(struct cgroup_subsys_state *css,
return __cfq_set_weight(css, val, false, false, true);
}
+static int cfq_set_group_idle(struct cgroup_subsys_state *css,
+ struct cftype *cft, u64 val)
+{
+ struct blkcg *blkcg = css_to_blkcg(css);
+ struct cfq_group_data *cfqgd;
+ struct blkcg_gq *blkg;
+ int ret = 0;
+
+ spin_lock_irq(&blkcg->lock);
+ cfqgd = blkcg_to_cfqgd(blkcg);
+ if (!cfqgd) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ cfqgd->group_idle = val * NSEC_PER_USEC;
+
+ hlist_for_each_entry(blkg, &blkcg->blkg_list, blkcg_node) {
+ struct cfq_group *cfqg = blkg_to_cfqg(blkg);
+
+ if (!cfqg)
+ continue;
+
+ cfqg->group_idle = cfqgd->group_idle;
+ }
+
+out:
+ spin_unlock_irq(&blkcg->lock);
+ return ret;
+}
+
static int cfqg_print_stat(struct seq_file *sf, void *v)
{
blkcg_print_blkgs(sf, css_to_blkcg(seq_css(sf)), blkg_prfill_stat,
@@ -2023,6 +2082,11 @@ static struct cftype cfq_blkcg_legacy_files[] = {
.seq_show = cfq_print_leaf_weight,
.write_u64 = cfq_set_leaf_weight,
},
+ {
+ .name = "group_idle",
+ .seq_show = cfq_print_group_idle,
+ .write_u64 = cfq_set_group_idle,
+ },
/* statistics, covers only the tasks in the cfqg */
{
@@ -2917,7 +2981,7 @@ static void cfq_arm_slice_timer(struct cfq_data *cfqd)
* with sync vs async workloads.
*/
if (blk_queue_nonrot(cfqd->queue) && cfqd->hw_tag &&
- !cfqd->cfq_group_idle)
+ !get_group_idle(cfqd))
return;
WARN_ON(!RB_EMPTY_ROOT(&cfqq->sort_list));
@@ -2928,9 +2992,8 @@ static void cfq_arm_slice_timer(struct cfq_data *cfqd)
*/
if (!cfq_should_idle(cfqd, cfqq)) {
/* no queue idling. Check for group idling */
- if (cfqd->cfq_group_idle)
- group_idle = cfqd->cfq_group_idle;
- else
+ group_idle = get_group_idle(cfqd);
+ if (!group_idle)
return;
}
@@ -2971,7 +3034,7 @@ static void cfq_arm_slice_timer(struct cfq_data *cfqd)
cfq_mark_cfqq_wait_request(cfqq);
if (group_idle)
- sl = cfqd->cfq_group_idle;
+ sl = group_idle;
else
sl = cfqd->cfq_slice_idle;
@@ -3320,7 +3383,7 @@ static struct cfq_queue *cfq_select_queue(struct cfq_data *cfqd)
* this group, wait for requests to complete.
*/
check_group_idle:
- if (cfqd->cfq_group_idle && cfqq->cfqg->nr_cfqq == 1 &&
+ if (get_group_idle(cfqd) && cfqq->cfqg->nr_cfqq == 1 &&
cfqq->cfqg->dispatched &&
!cfq_io_thinktime_big(cfqd, &cfqq->cfqg->ttime, true)) {
cfqq = NULL;
@@ -3884,7 +3947,7 @@ cfq_update_io_thinktime(struct cfq_data *cfqd, struct cfq_queue *cfqq,
cfqd->cfq_slice_idle);
}
#ifdef CONFIG_CFQ_GROUP_IOSCHED
- __cfq_update_io_thinktime(&cfqq->cfqg->ttime, cfqd->cfq_group_idle);
+ __cfq_update_io_thinktime(&cfqq->cfqg->ttime, get_group_idle(cfqd));
#endif
}
@@ -4273,7 +4336,7 @@ static void cfq_completed_request(struct request_queue *q, struct request *rq)
if (cfq_should_wait_busy(cfqd, cfqq)) {
u64 extend_sl = cfqd->cfq_slice_idle;
if (!cfqd->cfq_slice_idle)
- extend_sl = cfqd->cfq_group_idle;
+ extend_sl = get_group_idle(cfqd);
cfqq->slice_end = now + extend_sl;
cfq_mark_cfqq_wait_busy(cfqq);
cfq_log_cfqq(cfqd, cfqq, "will busy wait");
diff --git a/block/elevator.c b/block/elevator.c
index 5b51bc5..9bffe45 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -833,16 +833,13 @@ static struct kobj_type elv_ktype = {
.release = elevator_release,
};
-/*
- * elv_register_queue is called from either blk_register_queue or
- * elevator_switch, elevator switch is prevented from being happen
- * in the two paths, so it is safe to not hold q->sysfs_lock.
- */
-int elv_register_queue(struct request_queue *q, bool uevent)
+int elv_register_queue(struct request_queue *q)
{
struct elevator_queue *e = q->elevator;
int error;
+ lockdep_assert_held(&q->sysfs_lock);
+
error = kobject_add(&e->kobj, &q->kobj, "%s", "iosched");
if (!error) {
struct elv_fs_entry *attr = e->type->elevator_attrs;
@@ -853,9 +850,7 @@ int elv_register_queue(struct request_queue *q, bool uevent)
attr++;
}
}
- if (uevent)
- kobject_uevent(&e->kobj, KOBJ_ADD);
-
+ kobject_uevent(&e->kobj, KOBJ_ADD);
e->registered = 1;
if (!e->uses_mq && e->type->ops.sq.elevator_registered_fn)
e->type->ops.sq.elevator_registered_fn(q);
@@ -863,19 +858,15 @@ int elv_register_queue(struct request_queue *q, bool uevent)
return error;
}
-/*
- * elv_unregister_queue is called from either blk_unregister_queue or
- * elevator_switch, elevator switch is prevented from being happen
- * in the two paths, so it is safe to not hold q->sysfs_lock.
- */
void elv_unregister_queue(struct request_queue *q)
{
+ lockdep_assert_held(&q->sysfs_lock);
+
if (q) {
struct elevator_queue *e = q->elevator;
kobject_uevent(&e->kobj, KOBJ_REMOVE);
kobject_del(&e->kobj);
-
e->registered = 0;
/* Re-enable throttling in case elevator disabled it */
wbt_enable_default(q);
@@ -951,7 +942,6 @@ int elevator_switch_mq(struct request_queue *q,
if (q->elevator) {
if (q->elevator->registered)
elv_unregister_queue(q);
-
ioc_clear_queue(q);
elevator_exit(q, q->elevator);
}
@@ -961,7 +951,7 @@ int elevator_switch_mq(struct request_queue *q,
goto out;
if (new_e) {
- ret = elv_register_queue(q, true);
+ ret = elv_register_queue(q);
if (ret) {
elevator_exit(q, q->elevator);
goto out;
@@ -1057,7 +1047,7 @@ static int elevator_switch(struct request_queue *q, struct elevator_type *new_e)
if (err)
goto fail_init;
- err = elv_register_queue(q, true);
+ err = elv_register_queue(q);
if (err)
goto fail_register;
@@ -1077,7 +1067,7 @@ static int elevator_switch(struct request_queue *q, struct elevator_type *new_e)
/* switch failed, restore and re-register old elevator */
if (old) {
q->elevator = old;
- elv_register_queue(q, true);
+ elv_register_queue(q);
blk_queue_bypass_end(q);
}
diff --git a/block/genhd.c b/block/genhd.c
index 27a410d..fe1c236 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -582,8 +582,7 @@ static int exact_lock(dev_t devt, void *data)
return 0;
}
-static void register_disk(struct device *parent, struct gendisk *disk,
- const struct attribute_group **groups)
+static void register_disk(struct device *parent, struct gendisk *disk)
{
struct device *ddev = disk_to_dev(disk);
struct block_device *bdev;
@@ -598,10 +597,6 @@ static void register_disk(struct device *parent, struct gendisk *disk,
/* delay uevents, until we scanned partition table */
dev_set_uevent_suppress(ddev, 1);
- if (groups) {
- WARN_ON(ddev->groups);
- ddev->groups = groups;
- }
if (device_add(ddev))
return;
if (!sysfs_deprecated) {
@@ -667,7 +662,6 @@ static void register_disk(struct device *parent, struct gendisk *disk,
* __device_add_disk - add disk information to kernel list
* @parent: parent device for the disk
* @disk: per-device partitioning information
- * @groups: Additional per-device sysfs groups
* @register_queue: register the queue if set to true
*
* This function registers the partitioning information in @disk
@@ -676,7 +670,6 @@ static void register_disk(struct device *parent, struct gendisk *disk,
* FIXME: error handling
*/
static void __device_add_disk(struct device *parent, struct gendisk *disk,
- const struct attribute_group **groups,
bool register_queue)
{
dev_t devt;
@@ -720,7 +713,7 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk,
blk_register_region(disk_devt(disk), disk->minors, NULL,
exact_match, exact_lock, disk);
}
- register_disk(parent, disk, groups);
+ register_disk(parent, disk);
if (register_queue)
blk_register_queue(disk);
@@ -734,17 +727,15 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk,
blk_integrity_add(disk);
}
-void device_add_disk(struct device *parent, struct gendisk *disk,
- const struct attribute_group **groups)
-
+void device_add_disk(struct device *parent, struct gendisk *disk)
{
- __device_add_disk(parent, disk, groups, true);
+ __device_add_disk(parent, disk, true);
}
EXPORT_SYMBOL(device_add_disk);
void device_add_disk_no_queue_reg(struct device *parent, struct gendisk *disk)
{
- __device_add_disk(parent, disk, NULL, false);
+ __device_add_disk(parent, disk, false);
}
EXPORT_SYMBOL(device_add_disk_no_queue_reg);
diff --git a/block/keyslot-manager.c b/block/keyslot-manager.c
new file mode 100644
index 0000000..74b7485
--- /dev/null
+++ b/block/keyslot-manager.c
@@ -0,0 +1,663 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2019 Google LLC
+ */
+
+/**
+ * DOC: The Keyslot Manager
+ *
+ * Many devices with inline encryption support have a limited number of "slots"
+ * into which encryption contexts may be programmed, and requests can be tagged
+ * with a slot number to specify the key to use for en/decryption.
+ *
+ * As the number of slots are limited, and programming keys is expensive on
+ * many inline encryption hardware, we don't want to program the same key into
+ * multiple slots - if multiple requests are using the same key, we want to
+ * program just one slot with that key and use that slot for all requests.
+ *
+ * The keyslot manager manages these keyslots appropriately, and also acts as
+ * an abstraction between the inline encryption hardware and the upper layers.
+ *
+ * Lower layer devices will set up a keyslot manager in their request queue
+ * and tell it how to perform device specific operations like programming/
+ * evicting keys from keyslots.
+ *
+ * Upper layers will call keyslot_manager_get_slot_for_key() to program a
+ * key into some slot in the inline encryption hardware.
+ */
+#include <crypto/algapi.h>
+#include <linux/keyslot-manager.h>
+#include <linux/atomic.h>
+#include <linux/mutex.h>
+#include <linux/pm_runtime.h>
+#include <linux/wait.h>
+#include <linux/blkdev.h>
+
+struct keyslot {
+ atomic_t slot_refs;
+ struct list_head idle_slot_node;
+ struct hlist_node hash_node;
+ struct blk_crypto_key key;
+};
+
+struct keyslot_manager {
+ unsigned int num_slots;
+ struct keyslot_mgmt_ll_ops ksm_ll_ops;
+ unsigned int features;
+ unsigned int crypto_mode_supported[BLK_ENCRYPTION_MODE_MAX];
+ unsigned int max_dun_bytes_supported;
+ void *ll_priv_data;
+
+#ifdef CONFIG_PM
+ /* Device for runtime power management (NULL if none) */
+ struct device *dev;
+#endif
+
+ /* Protects programming and evicting keys from the device */
+ struct rw_semaphore lock;
+
+ /* List of idle slots, with least recently used slot at front */
+ wait_queue_head_t idle_slots_wait_queue;
+ struct list_head idle_slots;
+ spinlock_t idle_slots_lock;
+
+ /*
+ * Hash table which maps key hashes to keyslots, so that we can find a
+ * key's keyslot in O(1) time rather than O(num_slots). Protected by
+ * 'lock'. A cryptographic hash function is used so that timing attacks
+ * can't leak information about the raw keys.
+ */
+ struct hlist_head *slot_hashtable;
+ unsigned int slot_hashtable_size;
+
+ /* Per-keyslot data */
+ struct keyslot slots[];
+};
+
+static inline bool keyslot_manager_is_passthrough(struct keyslot_manager *ksm)
+{
+ return ksm->num_slots == 0;
+}
+
+#ifdef CONFIG_PM
+static inline void keyslot_manager_set_dev(struct keyslot_manager *ksm,
+ struct device *dev)
+{
+ ksm->dev = dev;
+}
+
+/* If there's an underlying device and it's suspended, resume it. */
+static inline void keyslot_manager_pm_get(struct keyslot_manager *ksm)
+{
+ if (ksm->dev)
+ pm_runtime_get_sync(ksm->dev);
+}
+
+static inline void keyslot_manager_pm_put(struct keyslot_manager *ksm)
+{
+ if (ksm->dev)
+ pm_runtime_put_sync(ksm->dev);
+}
+#else /* CONFIG_PM */
+static inline void keyslot_manager_set_dev(struct keyslot_manager *ksm,
+ struct device *dev)
+{
+}
+
+static inline void keyslot_manager_pm_get(struct keyslot_manager *ksm)
+{
+}
+
+static inline void keyslot_manager_pm_put(struct keyslot_manager *ksm)
+{
+}
+#endif /* !CONFIG_PM */
+
+static inline void keyslot_manager_hw_enter(struct keyslot_manager *ksm)
+{
+ /*
+ * Calling into the driver requires ksm->lock held and the device
+ * resumed. But we must resume the device first, since that can acquire
+ * and release ksm->lock via keyslot_manager_reprogram_all_keys().
+ */
+ keyslot_manager_pm_get(ksm);
+ down_write(&ksm->lock);
+}
+
+static inline void keyslot_manager_hw_exit(struct keyslot_manager *ksm)
+{
+ up_write(&ksm->lock);
+ keyslot_manager_pm_put(ksm);
+}
+
+/**
+ * keyslot_manager_create() - Create a keyslot manager
+ * @dev: Device for runtime power management (NULL if none)
+ * @num_slots: The number of key slots to manage.
+ * @ksm_ll_ops: The struct keyslot_mgmt_ll_ops for the device that this keyslot
+ * manager will use to perform operations like programming and
+ * evicting keys.
+ * @features: The supported features as a bitmask of BLK_CRYPTO_FEATURE_* flags.
+ * Most drivers should set BLK_CRYPTO_FEATURE_STANDARD_KEYS here.
+ * @crypto_mode_supported: Array of size BLK_ENCRYPTION_MODE_MAX of
+ * bitmasks that represents whether a crypto mode
+ * and data unit size are supported. The i'th bit
+ * of crypto_mode_supported[crypto_mode] is set iff
+ * a data unit size of (1 << i) is supported. We
+ * only support data unit sizes that are powers of
+ * 2.
+ * @ll_priv_data: Private data passed as is to the functions in ksm_ll_ops.
+ *
+ * Allocate memory for and initialize a keyslot manager. Called by e.g.
+ * storage drivers to set up a keyslot manager in their request_queue.
+ *
+ * Context: May sleep
+ * Return: Pointer to constructed keyslot manager or NULL on error.
+ */
+struct keyslot_manager *keyslot_manager_create(
+ struct device *dev,
+ unsigned int num_slots,
+ const struct keyslot_mgmt_ll_ops *ksm_ll_ops,
+ unsigned int features,
+ const unsigned int crypto_mode_supported[BLK_ENCRYPTION_MODE_MAX],
+ void *ll_priv_data)
+{
+ struct keyslot_manager *ksm;
+ unsigned int slot;
+ unsigned int i;
+
+ if (num_slots == 0)
+ return NULL;
+
+ /* Check that all ops are specified */
+ if (ksm_ll_ops->keyslot_program == NULL ||
+ ksm_ll_ops->keyslot_evict == NULL)
+ return NULL;
+
+ ksm = kvzalloc(struct_size(ksm, slots, num_slots), GFP_KERNEL);
+ if (!ksm)
+ return NULL;
+
+ ksm->num_slots = num_slots;
+ ksm->ksm_ll_ops = *ksm_ll_ops;
+ ksm->features = features;
+ memcpy(ksm->crypto_mode_supported, crypto_mode_supported,
+ sizeof(ksm->crypto_mode_supported));
+ ksm->max_dun_bytes_supported = BLK_CRYPTO_MAX_IV_SIZE;
+ ksm->ll_priv_data = ll_priv_data;
+ keyslot_manager_set_dev(ksm, dev);
+
+ init_rwsem(&ksm->lock);
+
+ init_waitqueue_head(&ksm->idle_slots_wait_queue);
+ INIT_LIST_HEAD(&ksm->idle_slots);
+
+ for (slot = 0; slot < num_slots; slot++) {
+ list_add_tail(&ksm->slots[slot].idle_slot_node,
+ &ksm->idle_slots);
+ }
+
+ spin_lock_init(&ksm->idle_slots_lock);
+
+ ksm->slot_hashtable_size = roundup_pow_of_two(num_slots);
+ ksm->slot_hashtable = kvmalloc_array(ksm->slot_hashtable_size,
+ sizeof(ksm->slot_hashtable[0]),
+ GFP_KERNEL);
+ if (!ksm->slot_hashtable)
+ goto err_free_ksm;
+ for (i = 0; i < ksm->slot_hashtable_size; i++)
+ INIT_HLIST_HEAD(&ksm->slot_hashtable[i]);
+
+ return ksm;
+
+err_free_ksm:
+ keyslot_manager_destroy(ksm);
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(keyslot_manager_create);
+
+void keyslot_manager_set_max_dun_bytes(struct keyslot_manager *ksm,
+ unsigned int max_dun_bytes)
+{
+ ksm->max_dun_bytes_supported = max_dun_bytes;
+}
+EXPORT_SYMBOL_GPL(keyslot_manager_set_max_dun_bytes);
+
+static inline struct hlist_head *
+hash_bucket_for_key(struct keyslot_manager *ksm,
+ const struct blk_crypto_key *key)
+{
+ return &ksm->slot_hashtable[blk_crypto_key_hash(key) &
+ (ksm->slot_hashtable_size - 1)];
+}
+
+static void remove_slot_from_lru_list(struct keyslot_manager *ksm, int slot)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&ksm->idle_slots_lock, flags);
+ list_del(&ksm->slots[slot].idle_slot_node);
+ spin_unlock_irqrestore(&ksm->idle_slots_lock, flags);
+}
+
+static int find_keyslot(struct keyslot_manager *ksm,
+ const struct blk_crypto_key *key)
+{
+ const struct hlist_head *head = hash_bucket_for_key(ksm, key);
+ const struct keyslot *slotp;
+
+ hlist_for_each_entry(slotp, head, hash_node) {
+ if (slotp->key.hash == key->hash &&
+ slotp->key.crypto_mode == key->crypto_mode &&
+ slotp->key.size == key->size &&
+ slotp->key.data_unit_size == key->data_unit_size &&
+ !crypto_memneq(slotp->key.raw, key->raw, key->size))
+ return slotp - ksm->slots;
+ }
+ return -ENOKEY;
+}
+
+static int find_and_grab_keyslot(struct keyslot_manager *ksm,
+ const struct blk_crypto_key *key)
+{
+ int slot;
+
+ slot = find_keyslot(ksm, key);
+ if (slot < 0)
+ return slot;
+ if (atomic_inc_return(&ksm->slots[slot].slot_refs) == 1) {
+ /* Took first reference to this slot; remove it from LRU list */
+ remove_slot_from_lru_list(ksm, slot);
+ }
+ return slot;
+}
+
+/**
+ * keyslot_manager_get_slot_for_key() - Program a key into a keyslot.
+ * @ksm: The keyslot manager to program the key into.
+ * @key: Pointer to the key object to program, including the raw key, crypto
+ * mode, and data unit size.
+ *
+ * Get a keyslot that's been programmed with the specified key. If one already
+ * exists, return it with incremented refcount. Otherwise, wait for a keyslot
+ * to become idle and program it.
+ *
+ * Context: Process context. Takes and releases ksm->lock.
+ * Return: The keyslot on success, else a -errno value.
+ */
+int keyslot_manager_get_slot_for_key(struct keyslot_manager *ksm,
+ const struct blk_crypto_key *key)
+{
+ int slot;
+ int err;
+ struct keyslot *idle_slot;
+
+ if (keyslot_manager_is_passthrough(ksm))
+ return 0;
+
+ down_read(&ksm->lock);
+ slot = find_and_grab_keyslot(ksm, key);
+ up_read(&ksm->lock);
+ if (slot != -ENOKEY)
+ return slot;
+
+ for (;;) {
+ keyslot_manager_hw_enter(ksm);
+ slot = find_and_grab_keyslot(ksm, key);
+ if (slot != -ENOKEY) {
+ keyslot_manager_hw_exit(ksm);
+ return slot;
+ }
+
+ /*
+ * If we're here, that means there wasn't a slot that was
+ * already programmed with the key. So try to program it.
+ */
+ if (!list_empty(&ksm->idle_slots))
+ break;
+
+ keyslot_manager_hw_exit(ksm);
+ wait_event(ksm->idle_slots_wait_queue,
+ !list_empty(&ksm->idle_slots));
+ }
+
+ idle_slot = list_first_entry(&ksm->idle_slots, struct keyslot,
+ idle_slot_node);
+ slot = idle_slot - ksm->slots;
+
+ err = ksm->ksm_ll_ops.keyslot_program(ksm, key, slot);
+ if (err) {
+ wake_up(&ksm->idle_slots_wait_queue);
+ keyslot_manager_hw_exit(ksm);
+ return err;
+ }
+
+ /* Move this slot to the hash list for the new key. */
+ if (idle_slot->key.crypto_mode != BLK_ENCRYPTION_MODE_INVALID)
+ hlist_del(&idle_slot->hash_node);
+ hlist_add_head(&idle_slot->hash_node, hash_bucket_for_key(ksm, key));
+
+ atomic_set(&idle_slot->slot_refs, 1);
+ idle_slot->key = *key;
+
+ remove_slot_from_lru_list(ksm, slot);
+
+ keyslot_manager_hw_exit(ksm);
+ return slot;
+}
+
+/**
+ * keyslot_manager_get_slot() - Increment the refcount on the specified slot.
+ * @ksm: The keyslot manager that we want to modify.
+ * @slot: The slot to increment the refcount of.
+ *
+ * This function assumes that there is already an active reference to that slot
+ * and simply increments the refcount. This is useful when cloning a bio that
+ * already has a reference to a keyslot, and we want the cloned bio to also have
+ * its own reference.
+ *
+ * Context: Any context.
+ */
+void keyslot_manager_get_slot(struct keyslot_manager *ksm, unsigned int slot)
+{
+ if (keyslot_manager_is_passthrough(ksm))
+ return;
+
+ if (WARN_ON(slot >= ksm->num_slots))
+ return;
+
+ WARN_ON(atomic_inc_return(&ksm->slots[slot].slot_refs) < 2);
+}
+
+/**
+ * keyslot_manager_put_slot() - Release a reference to a slot
+ * @ksm: The keyslot manager to release the reference from.
+ * @slot: The slot to release the reference from.
+ *
+ * Context: Any context.
+ */
+void keyslot_manager_put_slot(struct keyslot_manager *ksm, unsigned int slot)
+{
+ unsigned long flags;
+
+ if (keyslot_manager_is_passthrough(ksm))
+ return;
+
+ if (WARN_ON(slot >= ksm->num_slots))
+ return;
+
+ if (atomic_dec_and_lock_irqsave(&ksm->slots[slot].slot_refs,
+ &ksm->idle_slots_lock, flags)) {
+ list_add_tail(&ksm->slots[slot].idle_slot_node,
+ &ksm->idle_slots);
+ spin_unlock_irqrestore(&ksm->idle_slots_lock, flags);
+ wake_up(&ksm->idle_slots_wait_queue);
+ }
+}
+
+/**
+ * keyslot_manager_crypto_mode_supported() - Find out if a crypto_mode /
+ * data unit size / is_hw_wrapped_key
+ * combination is supported by a ksm.
+ * @ksm: The keyslot manager to check
+ * @crypto_mode: The crypto mode to check for.
+ * @dun_bytes: The number of bytes that will be used to specify the DUN
+ * @data_unit_size: The data_unit_size for the mode.
+ * @is_hw_wrapped_key: Whether a hardware-wrapped key will be used.
+ *
+ * Calls and returns the result of the crypto_mode_supported function specified
+ * by the ksm.
+ *
+ * Context: Process context.
+ * Return: Whether or not this ksm supports the specified crypto settings.
+ */
+bool keyslot_manager_crypto_mode_supported(struct keyslot_manager *ksm,
+ enum blk_crypto_mode_num crypto_mode,
+ unsigned int dun_bytes,
+ unsigned int data_unit_size,
+ bool is_hw_wrapped_key)
+{
+ if (!ksm)
+ return false;
+ if (WARN_ON(crypto_mode >= BLK_ENCRYPTION_MODE_MAX))
+ return false;
+ if (WARN_ON(!is_power_of_2(data_unit_size)))
+ return false;
+ if (is_hw_wrapped_key) {
+ if (!(ksm->features & BLK_CRYPTO_FEATURE_WRAPPED_KEYS))
+ return false;
+ } else {
+ if (!(ksm->features & BLK_CRYPTO_FEATURE_STANDARD_KEYS))
+ return false;
+ }
+ if (!(ksm->crypto_mode_supported[crypto_mode] & data_unit_size))
+ return false;
+
+ return ksm->max_dun_bytes_supported >= dun_bytes;
+}
+
+/**
+ * keyslot_manager_evict_key() - Evict a key from the lower layer device.
+ * @ksm: The keyslot manager to evict from
+ * @key: The key to evict
+ *
+ * Find the keyslot that the specified key was programmed into, and evict that
+ * slot from the lower layer device if that slot is not currently in use.
+ *
+ * Context: Process context. Takes and releases ksm->lock.
+ * Return: 0 on success, -EBUSY if the key is still in use, or another
+ * -errno value on other error.
+ */
+int keyslot_manager_evict_key(struct keyslot_manager *ksm,
+ const struct blk_crypto_key *key)
+{
+ int slot;
+ int err;
+ struct keyslot *slotp;
+
+ if (keyslot_manager_is_passthrough(ksm)) {
+ if (ksm->ksm_ll_ops.keyslot_evict) {
+ keyslot_manager_hw_enter(ksm);
+ err = ksm->ksm_ll_ops.keyslot_evict(ksm, key, -1);
+ keyslot_manager_hw_exit(ksm);
+ return err;
+ }
+ return 0;
+ }
+
+ keyslot_manager_hw_enter(ksm);
+
+ slot = find_keyslot(ksm, key);
+ if (slot < 0) {
+ err = slot;
+ goto out_unlock;
+ }
+ slotp = &ksm->slots[slot];
+
+ if (atomic_read(&slotp->slot_refs) != 0) {
+ err = -EBUSY;
+ goto out_unlock;
+ }
+ err = ksm->ksm_ll_ops.keyslot_evict(ksm, key, slot);
+ if (err)
+ goto out_unlock;
+
+ hlist_del(&slotp->hash_node);
+ memzero_explicit(&slotp->key, sizeof(slotp->key));
+ err = 0;
+out_unlock:
+ keyslot_manager_hw_exit(ksm);
+ return err;
+}
+
+/**
+ * keyslot_manager_reprogram_all_keys() - Re-program all keyslots.
+ * @ksm: The keyslot manager
+ *
+ * Re-program all keyslots that are supposed to have a key programmed. This is
+ * intended only for use by drivers for hardware that loses its keys on reset.
+ *
+ * Context: Process context. Takes and releases ksm->lock.
+ */
+void keyslot_manager_reprogram_all_keys(struct keyslot_manager *ksm)
+{
+ unsigned int slot;
+
+ if (WARN_ON(keyslot_manager_is_passthrough(ksm)))
+ return;
+
+ /* This is for device initialization, so don't resume the device */
+ down_write(&ksm->lock);
+ for (slot = 0; slot < ksm->num_slots; slot++) {
+ const struct keyslot *slotp = &ksm->slots[slot];
+ int err;
+
+ if (slotp->key.crypto_mode == BLK_ENCRYPTION_MODE_INVALID)
+ continue;
+
+ err = ksm->ksm_ll_ops.keyslot_program(ksm, &slotp->key, slot);
+ WARN_ON(err);
+ }
+ up_write(&ksm->lock);
+}
+EXPORT_SYMBOL_GPL(keyslot_manager_reprogram_all_keys);
+
+/**
+ * keyslot_manager_private() - return the private data stored with ksm
+ * @ksm: The keyslot manager
+ *
+ * Returns the private data passed to the ksm when it was created.
+ */
+void *keyslot_manager_private(struct keyslot_manager *ksm)
+{
+ return ksm->ll_priv_data;
+}
+EXPORT_SYMBOL_GPL(keyslot_manager_private);
+
+void keyslot_manager_destroy(struct keyslot_manager *ksm)
+{
+ if (ksm) {
+ kvfree(ksm->slot_hashtable);
+ memzero_explicit(ksm, struct_size(ksm, slots, ksm->num_slots));
+ kvfree(ksm);
+ }
+}
+EXPORT_SYMBOL_GPL(keyslot_manager_destroy);
+
+/**
+ * keyslot_manager_create_passthrough() - Create a passthrough keyslot manager
+ * @dev: Device for runtime power management (NULL if none)
+ * @ksm_ll_ops: The struct keyslot_mgmt_ll_ops
+ * @features: Bitmask of BLK_CRYPTO_FEATURE_* flags
+ * @crypto_mode_supported: Bitmasks for supported encryption modes
+ * @ll_priv_data: Private data passed as is to the functions in ksm_ll_ops.
+ *
+ * Allocate memory for and initialize a passthrough keyslot manager.
+ * Called by e.g. storage drivers to set up a keyslot manager in their
+ * request_queue, when the storage driver wants to manage its keys by itself.
+ * This is useful for inline encryption hardware that don't have a small fixed
+ * number of keyslots, and for layered devices.
+ *
+ * See keyslot_manager_create() for more details about the parameters.
+ *
+ * Context: This function may sleep
+ * Return: Pointer to constructed keyslot manager or NULL on error.
+ */
+struct keyslot_manager *keyslot_manager_create_passthrough(
+ struct device *dev,
+ const struct keyslot_mgmt_ll_ops *ksm_ll_ops,
+ unsigned int features,
+ const unsigned int crypto_mode_supported[BLK_ENCRYPTION_MODE_MAX],
+ void *ll_priv_data)
+{
+ struct keyslot_manager *ksm;
+
+ ksm = kzalloc(sizeof(*ksm), GFP_KERNEL);
+ if (!ksm)
+ return NULL;
+
+ ksm->ksm_ll_ops = *ksm_ll_ops;
+ ksm->features = features;
+ memcpy(ksm->crypto_mode_supported, crypto_mode_supported,
+ sizeof(ksm->crypto_mode_supported));
+ ksm->max_dun_bytes_supported = BLK_CRYPTO_MAX_IV_SIZE;
+ ksm->ll_priv_data = ll_priv_data;
+ keyslot_manager_set_dev(ksm, dev);
+
+ init_rwsem(&ksm->lock);
+
+ return ksm;
+}
+EXPORT_SYMBOL_GPL(keyslot_manager_create_passthrough);
+
+/**
+ * keyslot_manager_intersect_modes() - restrict supported modes by child device
+ * @parent: The keyslot manager for parent device
+ * @child: The keyslot manager for child device, or NULL
+ *
+ * Clear any crypto mode support bits in @parent that aren't set in @child.
+ * If @child is NULL, then all parent bits are cleared.
+ *
+ * Only use this when setting up the keyslot manager for a layered device,
+ * before it's been exposed yet.
+ */
+void keyslot_manager_intersect_modes(struct keyslot_manager *parent,
+ const struct keyslot_manager *child)
+{
+ if (child) {
+ unsigned int i;
+
+ parent->features &= child->features;
+ parent->max_dun_bytes_supported =
+ min(parent->max_dun_bytes_supported,
+ child->max_dun_bytes_supported);
+ for (i = 0; i < ARRAY_SIZE(child->crypto_mode_supported); i++) {
+ parent->crypto_mode_supported[i] &=
+ child->crypto_mode_supported[i];
+ }
+ } else {
+ parent->features = 0;
+ parent->max_dun_bytes_supported = 0;
+ memset(parent->crypto_mode_supported, 0,
+ sizeof(parent->crypto_mode_supported));
+ }
+}
+EXPORT_SYMBOL_GPL(keyslot_manager_intersect_modes);
+
+/**
+ * keyslot_manager_derive_raw_secret() - Derive software secret from wrapped key
+ * @ksm: The keyslot manager
+ * @wrapped_key: The wrapped key
+ * @wrapped_key_size: Size of the wrapped key in bytes
+ * @secret: (output) the software secret
+ * @secret_size: (output) the number of secret bytes to derive
+ *
+ * Given a hardware-wrapped key, ask the hardware to derive a secret which
+ * software can use for cryptographic tasks other than inline encryption. The
+ * derived secret is guaranteed to be cryptographically isolated from the key
+ * with which any inline encryption with this wrapped key would actually be
+ * done. I.e., both will be derived from the unwrapped key.
+ *
+ * Return: 0 on success, -EOPNOTSUPP if hardware-wrapped keys are unsupported,
+ * or another -errno code.
+ */
+int keyslot_manager_derive_raw_secret(struct keyslot_manager *ksm,
+ const u8 *wrapped_key,
+ unsigned int wrapped_key_size,
+ u8 *secret, unsigned int secret_size)
+{
+ int err;
+
+ if (ksm->ksm_ll_ops.derive_raw_secret) {
+ keyslot_manager_hw_enter(ksm);
+ err = ksm->ksm_ll_ops.derive_raw_secret(ksm, wrapped_key,
+ wrapped_key_size,
+ secret, secret_size);
+ keyslot_manager_hw_exit(ksm);
+ } else {
+ err = -EOPNOTSUPP;
+ }
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(keyslot_manager_derive_raw_secret);
diff --git a/build.config.aarch64 b/build.config.aarch64
new file mode 100644
index 0000000..3b9ccac
--- /dev/null
+++ b/build.config.aarch64
@@ -0,0 +1,14 @@
+ARCH=arm64
+
+LLVM_IAS=1
+CROSS_COMPILE=aarch64-linux-gnu-
+CROSS_COMPILE_COMPAT=arm-linux-gnueabi-
+LINUX_GCC_CROSS_COMPILE_PREBUILTS_BIN=prebuilts/gas/linux-x86
+LINUX_GCC_CROSS_COMPILE_COMPAT_PREBUILTS_BIN=prebuilts/gas/linux-x86
+
+FILES="
+arch/arm64/boot/Image
+arch/arm64/boot/Image.gz
+vmlinux
+System.map
+"
diff --git a/build.config.allmodconfig b/build.config.allmodconfig
new file mode 100644
index 0000000..103d1cd
--- /dev/null
+++ b/build.config.allmodconfig
@@ -0,0 +1,14 @@
+DEFCONFIG=allmodconfig
+
+POST_DEFCONFIG_CMDS="update_config"
+function update_config() {
+ ${KERNEL_DIR}/scripts/config --file ${OUT_DIR}/.config \
+ -d TEST_KMOD \
+ -d CPU_BIG_ENDIAN \
+ -d STM \
+ -d TEST_MEMCAT_P \
+ -e UNWINDER_FRAME_POINTER \
+
+ (cd ${OUT_DIR} && \
+ make O=${OUT_DIR} $archsubarch CROSS_COMPILE=${CROSS_COMPILE} "${TOOL_ARGS[@]}" ${MAKE_ARGS} olddefconfig)
+}
diff --git a/build.config.allmodconfig.aarch64 b/build.config.allmodconfig.aarch64
new file mode 100644
index 0000000..2fbe380
--- /dev/null
+++ b/build.config.allmodconfig.aarch64
@@ -0,0 +1,4 @@
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.common
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.aarch64
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.allmodconfig
+
diff --git a/build.config.allmodconfig.arm b/build.config.allmodconfig.arm
new file mode 100644
index 0000000..e92744a9
--- /dev/null
+++ b/build.config.allmodconfig.arm
@@ -0,0 +1,4 @@
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.common
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.arm
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.allmodconfig
+
diff --git a/build.config.allmodconfig.x86_64 b/build.config.allmodconfig.x86_64
new file mode 100644
index 0000000..f06b30c
--- /dev/null
+++ b/build.config.allmodconfig.x86_64
@@ -0,0 +1,4 @@
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.common
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.x86_64
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.allmodconfig
+
diff --git a/build.config.arm b/build.config.arm
new file mode 100644
index 0000000..a9e9a6c
--- /dev/null
+++ b/build.config.arm
@@ -0,0 +1,11 @@
+ARCH=arm
+
+CROSS_COMPILE=arm-linux-gnueabi-
+LINUX_GCC_CROSS_COMPILE_PREBUILTS_BIN=prebuilts/gas/linux-x86
+
+FILES="
+arch/arm/boot/Image.gz
+arch/arm/boot/Image
+vmlinux
+System.map
+"
diff --git a/build.config.common b/build.config.common
new file mode 100644
index 0000000..471ffcd
--- /dev/null
+++ b/build.config.common
@@ -0,0 +1,12 @@
+BRANCH=android-4.19-stable
+KMI_GENERATION=0
+
+LLVM=1
+DEPMOD=depmod
+CLANG_PREBUILT_BIN=prebuilts-master/clang/host/linux-x86/clang-r416183b/bin
+BUILDTOOLS_PREBUILT_BIN=build/build-tools/path/linux-x86
+
+EXTRA_CMDS=''
+STOP_SHIP_TRACEPRINTK=1
+IN_KERNEL_MODULES=1
+DO_NOT_STRIP_MODULES=1
diff --git a/build.config.gki b/build.config.gki
new file mode 100644
index 0000000..44d4ed1
--- /dev/null
+++ b/build.config.gki
@@ -0,0 +1,3 @@
+DEFCONFIG=gki_defconfig
+POST_DEFCONFIG_CMDS="check_defconfig"
+
diff --git a/build.config.gki-debug.aarch64 b/build.config.gki-debug.aarch64
new file mode 100644
index 0000000..c1fe2f0
--- /dev/null
+++ b/build.config.gki-debug.aarch64
@@ -0,0 +1,3 @@
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.gki.aarch64
+TRIM_NONLISTED_KMI=""
+KMI_SYMBOL_LIST_STRICT_MODE=""
diff --git a/build.config.gki-debug.x86_64 b/build.config.gki-debug.x86_64
new file mode 100644
index 0000000..d89b7ad
--- /dev/null
+++ b/build.config.gki-debug.x86_64
@@ -0,0 +1,3 @@
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.gki.x86_64
+TRIM_NONLISTED_KMI=""
+KMI_SYMBOL_LIST_STRICT_MODE=""
diff --git a/build.config.gki.aarch64 b/build.config.gki.aarch64
new file mode 100644
index 0000000..74a6941
--- /dev/null
+++ b/build.config.gki.aarch64
@@ -0,0 +1,14 @@
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.common
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.aarch64
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.gki
+
+ABI_DEFINITION=android/abi_gki_aarch64.xml
+KMI_SYMBOL_LIST=android/abi_gki_aarch64
+ADDITIONAL_KMI_SYMBOL_LISTS="
+android/abi_gki_aarch64_cuttlefish
+android/abi_gki_aarch64_qcom
+"
+TRIM_NONLISTED_KMI=1
+KMI_SYMBOL_LIST_ADD_ONLY=1
+KMI_SYMBOL_LIST_STRICT_MODE=1
+KMI_ENFORCED=1
diff --git a/build.config.gki.x86_64 b/build.config.gki.x86_64
new file mode 100644
index 0000000..0e04fc6
--- /dev/null
+++ b/build.config.gki.x86_64
@@ -0,0 +1,4 @@
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.common
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.x86_64
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.gki
+
diff --git a/build.config.gki_kasan b/build.config.gki_kasan
new file mode 100644
index 0000000..5528fab
--- /dev/null
+++ b/build.config.gki_kasan
@@ -0,0 +1,21 @@
+DEFCONFIG=gki_defconfig
+POST_DEFCONFIG_CMDS="check_defconfig && update_kasan_config"
+function update_kasan_config() {
+ ${KERNEL_DIR}/scripts/config --file ${OUT_DIR}/.config \
+ -e CONFIG_KASAN \
+ -e CONFIG_KASAN_INLINE \
+ -e CONFIG_KCOV \
+ -e CONFIG_PANIC_ON_WARN_DEFAULT_ENABLE \
+ -d CONFIG_RANDOMIZE_BASE \
+ -d CONFIG_KASAN_OUTLINE \
+ --set-val CONFIG_FRAME_WARN 0 \
+ -d LTO \
+ -d LTO_CLANG \
+ -d CFI \
+ -d CFI_PERMISSIVE \
+ -d CFI_CLANG \
+ -d SHADOW_CALL_STACK
+ (cd ${OUT_DIR} && \
+ make ${CC_LD_ARG} O=${OUT_DIR} olddefconfig)
+}
+
diff --git a/build.config.gki_kasan.aarch64 b/build.config.gki_kasan.aarch64
new file mode 100644
index 0000000..9fd2560
--- /dev/null
+++ b/build.config.gki_kasan.aarch64
@@ -0,0 +1,3 @@
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.common
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.aarch64
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.gki_kasan
diff --git a/build.config.gki_kasan.x86_64 b/build.config.gki_kasan.x86_64
new file mode 100644
index 0000000..eec6458
--- /dev/null
+++ b/build.config.gki_kasan.x86_64
@@ -0,0 +1,4 @@
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.common
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.x86_64
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.gki_kasan
+
diff --git a/build.config.gki_kprobes b/build.config.gki_kprobes
new file mode 100644
index 0000000..7047133
--- /dev/null
+++ b/build.config.gki_kprobes
@@ -0,0 +1,19 @@
+DEFCONFIG=gki_defconfig
+POST_DEFCONFIG_CMDS="check_defconfig && update_kprobes_config"
+function update_kprobes_config() {
+ ${KERNEL_DIR}/scripts/config --file ${OUT_DIR}/.config \
+ -d CONFIG_LTO \
+ -d CONFIG_LTO_CLANG \
+ -d CONFIG_CFI_CLANG \
+ -d CFI_PERMISSIVE \
+ -d CFI_CLANG \
+ -e CONFIG_FUNCTION_TRACER \
+ -e CONFIG_IRQSOFF_TRACER \
+ -e CONFIG_PREEMPT_TRACER \
+ -e CONFIG_DEBUG_FS \
+ -e CONFIG_CHECKPOINT_RESTORE \
+ -d CONFIG_RANDOMIZE_BASE
+ (cd ${OUT_DIR} && \
+ make ${CC_LD_ARG} O=${OUT_DIR} olddefconfig)
+}
+
diff --git a/build.config.gki_kprobes.aarch64 b/build.config.gki_kprobes.aarch64
new file mode 100644
index 0000000..627c217
--- /dev/null
+++ b/build.config.gki_kprobes.aarch64
@@ -0,0 +1,4 @@
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.common
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.aarch64
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.gki_kprobes
+
diff --git a/build.config.gki_kprobes.x86_64 b/build.config.gki_kprobes.x86_64
new file mode 100644
index 0000000..a1d3da7
--- /dev/null
+++ b/build.config.gki_kprobes.x86_64
@@ -0,0 +1,4 @@
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.common
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.x86_64
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.gki_kprobes
+
diff --git a/build.config.x86_64 b/build.config.x86_64
new file mode 100644
index 0000000..cc3c66e
--- /dev/null
+++ b/build.config.x86_64
@@ -0,0 +1,11 @@
+ARCH=x86_64
+
+LLVM_IAS=1
+CROSS_COMPILE=x86_64-linux-gnu-
+LINUX_GCC_CROSS_COMPILE_PREBUILTS_BIN=prebuilts/gas/linux-x86
+
+FILES="
+arch/x86/boot/bzImage
+vmlinux
+System.map
+"
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 0fb9586..3ebf3e1 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -163,7 +163,6 @@
config CRYPTO_MANAGER_DISABLE_TESTS
bool "Disable run-time self tests"
default y
- depends on CRYPTO_MANAGER2
help
Disable run-time self tests that normally take place at
algorithm registration.
@@ -257,6 +256,17 @@
config CRYPTO_ENGINE
tristate
+config CRYPTO_CURVE25519
+ tristate "Curve25519 algorithm"
+ select CRYPTO_KPP
+ select CRYPTO_LIB_CURVE25519_GENERIC
+
+config CRYPTO_CURVE25519_X86
+ tristate "x86_64 accelerated Curve25519 scalar multiplication library"
+ depends on X86 && 64BIT
+ select CRYPTO_LIB_CURVE25519_GENERIC
+ select CRYPTO_ARCH_HAVE_LIB_CURVE25519
+
comment "Authenticated Encryption with Associated Data"
config CRYPTO_CCM
@@ -495,6 +505,34 @@
Support for key wrapping (NIST SP800-38F / RFC3394) without
padding.
+config CRYPTO_NHPOLY1305
+ tristate
+ select CRYPTO_HASH
+ select CRYPTO_LIB_POLY1305_GENERIC
+
+config CRYPTO_ADIANTUM
+ tristate "Adiantum support"
+ select CRYPTO_CHACHA20
+ select CRYPTO_LIB_POLY1305_GENERIC
+ select CRYPTO_NHPOLY1305
+ help
+ Adiantum is a tweakable, length-preserving encryption mode
+ designed for fast and secure disk encryption, especially on
+ CPUs without dedicated crypto instructions. It encrypts
+ each sector using the XChaCha12 stream cipher, two passes of
+ an ε-almost-∆-universal hash function, and an invocation of
+ the AES-256 block cipher on a single 16-byte block. On CPUs
+ without AES instructions, Adiantum is much faster than
+ AES-XTS.
+
+ Adiantum's security is provably reducible to that of its
+ underlying stream and block ciphers, subject to a security
+ bound. Unlike XTS, Adiantum is a true wide-block encryption
+ mode, so it actually provides an even stronger notion of
+ security than XTS, subject to the security bound.
+
+ If unsure, say N.
+
comment "Hash modes"
config CRYPTO_CMAC
@@ -610,6 +648,30 @@
instructions, when available.
+config CRYPTO_BLAKE2S
+ tristate "BLAKE2s digest algorithm"
+ select CRYPTO_LIB_BLAKE2S_GENERIC
+ select CRYPTO_HASH
+ help
+ Implementation of cryptographic hash function BLAKE2s
+ optimized for 8-32bit platforms and can produce digests of any size
+ between 1 to 32. The keyed hash is also implemented.
+
+ This module provides the following algorithms:
+
+ - blake2s-128
+ - blake2s-160
+ - blake2s-224
+ - blake2s-256
+
+ See https://blake2.net for further information.
+
+config CRYPTO_BLAKE2S_X86
+ tristate "BLAKE2s digest algorithm (x86 accelerated version)"
+ depends on X86 && 64BIT
+ select CRYPTO_LIB_BLAKE2S_GENERIC
+ select CRYPTO_ARCH_HAVE_LIB_BLAKE2S
+
config CRYPTO_CRCT10DIF
tristate "CRCT10DIF algorithm"
select CRYPTO_HASH
@@ -656,6 +718,7 @@
config CRYPTO_POLY1305
tristate "Poly1305 authenticator algorithm"
select CRYPTO_HASH
+ select CRYPTO_LIB_POLY1305_GENERIC
help
Poly1305 authenticator algorithm, RFC7539.
@@ -666,7 +729,8 @@
config CRYPTO_POLY1305_X86_64
tristate "Poly1305 authenticator algorithm (x86_64/SSE2/AVX2)"
depends on X86 && 64BIT
- select CRYPTO_POLY1305
+ select CRYPTO_LIB_POLY1305_GENERIC
+ select CRYPTO_ARCH_HAVE_LIB_POLY1305
help
Poly1305 authenticator algorithm, RFC7539.
@@ -675,6 +739,11 @@
in IETF protocols. This is the x86_64 assembler implementation using SIMD
instructions.
+config CRYPTO_POLY1305_MIPS
+ tristate "Poly1305 authenticator algorithm (MIPS optimized)"
+ depends on CPU_MIPS32 || (CPU_MIPS64 && 64BIT)
+ select CRYPTO_ARCH_HAVE_LIB_POLY1305
+
config CRYPTO_MD4
tristate "MD4 digest algorithm"
select CRYPTO_HASH
@@ -1438,32 +1507,42 @@
Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
config CRYPTO_CHACHA20
- tristate "ChaCha20 cipher algorithm"
+ tristate "ChaCha stream cipher algorithms"
+ select CRYPTO_LIB_CHACHA_GENERIC
select CRYPTO_BLKCIPHER
help
- ChaCha20 cipher algorithm, RFC7539.
+ The ChaCha20, XChaCha20, and XChaCha12 stream cipher algorithms.
ChaCha20 is a 256-bit high-speed stream cipher designed by Daniel J.
Bernstein and further specified in RFC7539 for use in IETF protocols.
- This is the portable C implementation of ChaCha20.
-
- See also:
+ This is the portable C implementation of ChaCha20. See also:
<http://cr.yp.to/chacha/chacha-20080128.pdf>
+ XChaCha20 is the application of the XSalsa20 construction to ChaCha20
+ rather than to Salsa20. XChaCha20 extends ChaCha20's nonce length
+ from 64 bits (or 96 bits using the RFC7539 convention) to 192 bits,
+ while provably retaining ChaCha20's security. See also:
+ <https://cr.yp.to/snuffle/xsalsa-20081128.pdf>
+
+ XChaCha12 is XChaCha20 reduced to 12 rounds, with correspondingly
+ reduced security margin but increased performance. It can be needed
+ in some performance-sensitive scenarios.
+
config CRYPTO_CHACHA20_X86_64
- tristate "ChaCha20 cipher algorithm (x86_64/SSSE3/AVX2)"
+ tristate "ChaCha stream cipher algorithms (x86_64/SSSE3/AVX2/AVX-512VL)"
depends on X86 && 64BIT
select CRYPTO_BLKCIPHER
- select CRYPTO_CHACHA20
+ select CRYPTO_LIB_CHACHA_GENERIC
+ select CRYPTO_ARCH_HAVE_LIB_CHACHA
help
- ChaCha20 cipher algorithm, RFC7539.
+ SSSE3, AVX2, and AVX-512VL optimized implementations of the ChaCha20,
+ XChaCha20, and XChaCha12 stream ciphers.
- ChaCha20 is a 256-bit high-speed stream cipher designed by Daniel J.
- Bernstein and further specified in RFC7539 for use in IETF protocols.
- This is the x86_64 assembler implementation using SIMD instructions.
-
- See also:
- <http://cr.yp.to/chacha/chacha-20080128.pdf>
+config CRYPTO_CHACHA_MIPS
+ tristate "ChaCha stream cipher algorithms (MIPS 32r2 optimized)"
+ depends on CPU_MIPS32_R2
+ select CRYPTO_BLKCIPHER
+ select CRYPTO_ARCH_HAVE_LIB_CHACHA
config CRYPTO_SEED
tristate "SEED cipher algorithm"
@@ -1865,6 +1944,7 @@
config CRYPTO_HASH_INFO
bool
+source "lib/crypto/Kconfig"
source "drivers/crypto/Kconfig"
source crypto/asymmetric_keys/Kconfig
source certs/Kconfig
diff --git a/crypto/Makefile b/crypto/Makefile
index f6a234d..00e0bc20e 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -73,6 +73,7 @@
obj-$(CONFIG_CRYPTO_WP512) += wp512.o
CFLAGS_wp512.o := $(call cc-option,-fno-schedule-insns) # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79149
obj-$(CONFIG_CRYPTO_TGR192) += tgr192.o
+obj-$(CONFIG_CRYPTO_BLAKE2S) += blake2s_generic.o
obj-$(CONFIG_CRYPTO_GF128MUL) += gf128mul.o
obj-$(CONFIG_CRYPTO_ECB) += ecb.o
obj-$(CONFIG_CRYPTO_CBC) += cbc.o
@@ -83,6 +84,8 @@
obj-$(CONFIG_CRYPTO_XTS) += xts.o
obj-$(CONFIG_CRYPTO_CTR) += ctr.o
obj-$(CONFIG_CRYPTO_KEYWRAP) += keywrap.o
+obj-$(CONFIG_CRYPTO_ADIANTUM) += adiantum.o
+obj-$(CONFIG_CRYPTO_NHPOLY1305) += nhpoly1305.o
obj-$(CONFIG_CRYPTO_GCM) += gcm.o
obj-$(CONFIG_CRYPTO_CCM) += ccm.o
obj-$(CONFIG_CRYPTO_CHACHA20POLY1305) += chacha20poly1305.o
@@ -116,7 +119,7 @@
obj-$(CONFIG_CRYPTO_ANUBIS) += anubis.o
obj-$(CONFIG_CRYPTO_SEED) += seed.o
obj-$(CONFIG_CRYPTO_SALSA20) += salsa20_generic.o
-obj-$(CONFIG_CRYPTO_CHACHA20) += chacha20_generic.o
+obj-$(CONFIG_CRYPTO_CHACHA20) += chacha_generic.o
obj-$(CONFIG_CRYPTO_POLY1305) += poly1305_generic.o
obj-$(CONFIG_CRYPTO_DEFLATE) += deflate.o
obj-$(CONFIG_CRYPTO_MICHAEL_MIC) += michael_mic.o
@@ -147,6 +150,7 @@
ecdh_generic-y += ecdh.o
ecdh_generic-y += ecdh_helper.o
obj-$(CONFIG_CRYPTO_ECDH) += ecdh_generic.o
+obj-$(CONFIG_CRYPTO_CURVE25519) += curve25519-generic.o
#
# generic algorithms and the async_tx api
diff --git a/crypto/OWNERS b/crypto/OWNERS
new file mode 100644
index 0000000..f74b7ed
--- /dev/null
+++ b/crypto/OWNERS
@@ -0,0 +1,2 @@
+# include OWNERS from the authoritative android-mainline branch
+include kernel/common:android-mainline:/crypto/OWNERS
diff --git a/crypto/adiantum.c b/crypto/adiantum.c
new file mode 100644
index 0000000..3f129c6
--- /dev/null
+++ b/crypto/adiantum.c
@@ -0,0 +1,669 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Adiantum length-preserving encryption mode
+ *
+ * Copyright 2018 Google LLC
+ */
+
+/*
+ * Adiantum is a tweakable, length-preserving encryption mode designed for fast
+ * and secure disk encryption, especially on CPUs without dedicated crypto
+ * instructions. Adiantum encrypts each sector using the XChaCha12 stream
+ * cipher, two passes of an ε-almost-∆-universal (ε-∆U) hash function based on
+ * NH and Poly1305, and an invocation of the AES-256 block cipher on a single
+ * 16-byte block. See the paper for details:
+ *
+ * Adiantum: length-preserving encryption for entry-level processors
+ * (https://eprint.iacr.org/2018/720.pdf)
+ *
+ * For flexibility, this implementation also allows other ciphers:
+ *
+ * - Stream cipher: XChaCha12 or XChaCha20
+ * - Block cipher: any with a 128-bit block size and 256-bit key
+ *
+ * This implementation doesn't currently allow other ε-∆U hash functions, i.e.
+ * HPolyC is not supported. This is because Adiantum is ~20% faster than HPolyC
+ * but still provably as secure, and also the ε-∆U hash function of HBSH is
+ * formally defined to take two inputs (tweak, message) which makes it difficult
+ * to wrap with the crypto_shash API. Rather, some details need to be handled
+ * here. Nevertheless, if needed in the future, support for other ε-∆U hash
+ * functions could be added here.
+ */
+
+#include <crypto/b128ops.h>
+#include <crypto/chacha.h>
+#include <crypto/internal/hash.h>
+#include <crypto/internal/poly1305.h>
+#include <crypto/internal/skcipher.h>
+#include <crypto/nhpoly1305.h>
+#include <crypto/scatterwalk.h>
+#include <linux/module.h>
+
+#include "internal.h"
+
+/*
+ * Size of right-hand part of input data, in bytes; also the size of the block
+ * cipher's block size and the hash function's output.
+ */
+#define BLOCKCIPHER_BLOCK_SIZE 16
+
+/* Size of the block cipher key (K_E) in bytes */
+#define BLOCKCIPHER_KEY_SIZE 32
+
+/* Size of the hash key (K_H) in bytes */
+#define HASH_KEY_SIZE (POLY1305_BLOCK_SIZE + NHPOLY1305_KEY_SIZE)
+
+/*
+ * The specification allows variable-length tweaks, but Linux's crypto API
+ * currently only allows algorithms to support a single length. The "natural"
+ * tweak length for Adiantum is 16, since that fits into one Poly1305 block for
+ * the best performance. But longer tweaks are useful for fscrypt, to avoid
+ * needing to derive per-file keys. So instead we use two blocks, or 32 bytes.
+ */
+#define TWEAK_SIZE 32
+
+struct adiantum_instance_ctx {
+ struct crypto_skcipher_spawn streamcipher_spawn;
+ struct crypto_spawn blockcipher_spawn;
+ struct crypto_shash_spawn hash_spawn;
+};
+
+struct adiantum_tfm_ctx {
+ struct crypto_skcipher *streamcipher;
+ struct crypto_cipher *blockcipher;
+ struct crypto_shash *hash;
+ struct poly1305_core_key header_hash_key;
+};
+
+struct adiantum_request_ctx {
+
+ /*
+ * Buffer for right-hand part of data, i.e.
+ *
+ * P_L => P_M => C_M => C_R when encrypting, or
+ * C_R => C_M => P_M => P_L when decrypting.
+ *
+ * Also used to build the IV for the stream cipher.
+ */
+ union {
+ u8 bytes[XCHACHA_IV_SIZE];
+ __le32 words[XCHACHA_IV_SIZE / sizeof(__le32)];
+ le128 bignum; /* interpret as element of Z/(2^{128}Z) */
+ } rbuf;
+
+ bool enc; /* true if encrypting, false if decrypting */
+
+ /*
+ * The result of the Poly1305 ε-∆U hash function applied to
+ * (bulk length, tweak)
+ */
+ le128 header_hash;
+
+ /* Sub-requests, must be last */
+ union {
+ struct shash_desc hash_desc;
+ struct skcipher_request streamcipher_req;
+ } u;
+};
+
+/*
+ * Given the XChaCha stream key K_S, derive the block cipher key K_E and the
+ * hash key K_H as follows:
+ *
+ * K_E || K_H || ... = XChaCha(key=K_S, nonce=1||0^191)
+ *
+ * Note that this denotes using bits from the XChaCha keystream, which here we
+ * get indirectly by encrypting a buffer containing all 0's.
+ */
+static int adiantum_setkey(struct crypto_skcipher *tfm, const u8 *key,
+ unsigned int keylen)
+{
+ struct adiantum_tfm_ctx *tctx = crypto_skcipher_ctx(tfm);
+ struct {
+ u8 iv[XCHACHA_IV_SIZE];
+ u8 derived_keys[BLOCKCIPHER_KEY_SIZE + HASH_KEY_SIZE];
+ struct scatterlist sg;
+ struct crypto_wait wait;
+ struct skcipher_request req; /* must be last */
+ } *data;
+ u8 *keyp;
+ int err;
+
+ /* Set the stream cipher key (K_S) */
+ crypto_skcipher_clear_flags(tctx->streamcipher, CRYPTO_TFM_REQ_MASK);
+ crypto_skcipher_set_flags(tctx->streamcipher,
+ crypto_skcipher_get_flags(tfm) &
+ CRYPTO_TFM_REQ_MASK);
+ err = crypto_skcipher_setkey(tctx->streamcipher, key, keylen);
+ crypto_skcipher_set_flags(tfm,
+ crypto_skcipher_get_flags(tctx->streamcipher) &
+ CRYPTO_TFM_RES_MASK);
+ if (err)
+ return err;
+
+ /* Derive the subkeys */
+ data = kzalloc(sizeof(*data) +
+ crypto_skcipher_reqsize(tctx->streamcipher), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+ data->iv[0] = 1;
+ sg_init_one(&data->sg, data->derived_keys, sizeof(data->derived_keys));
+ crypto_init_wait(&data->wait);
+ skcipher_request_set_tfm(&data->req, tctx->streamcipher);
+ skcipher_request_set_callback(&data->req, CRYPTO_TFM_REQ_MAY_SLEEP |
+ CRYPTO_TFM_REQ_MAY_BACKLOG,
+ crypto_req_done, &data->wait);
+ skcipher_request_set_crypt(&data->req, &data->sg, &data->sg,
+ sizeof(data->derived_keys), data->iv);
+ err = crypto_wait_req(crypto_skcipher_encrypt(&data->req), &data->wait);
+ if (err)
+ goto out;
+ keyp = data->derived_keys;
+
+ /* Set the block cipher key (K_E) */
+ crypto_cipher_clear_flags(tctx->blockcipher, CRYPTO_TFM_REQ_MASK);
+ crypto_cipher_set_flags(tctx->blockcipher,
+ crypto_skcipher_get_flags(tfm) &
+ CRYPTO_TFM_REQ_MASK);
+ err = crypto_cipher_setkey(tctx->blockcipher, keyp,
+ BLOCKCIPHER_KEY_SIZE);
+ crypto_skcipher_set_flags(tfm,
+ crypto_cipher_get_flags(tctx->blockcipher) &
+ CRYPTO_TFM_RES_MASK);
+ if (err)
+ goto out;
+ keyp += BLOCKCIPHER_KEY_SIZE;
+
+ /* Set the hash key (K_H) */
+ poly1305_core_setkey(&tctx->header_hash_key, keyp);
+ keyp += POLY1305_BLOCK_SIZE;
+
+ crypto_shash_clear_flags(tctx->hash, CRYPTO_TFM_REQ_MASK);
+ crypto_shash_set_flags(tctx->hash, crypto_skcipher_get_flags(tfm) &
+ CRYPTO_TFM_REQ_MASK);
+ err = crypto_shash_setkey(tctx->hash, keyp, NHPOLY1305_KEY_SIZE);
+ crypto_skcipher_set_flags(tfm, crypto_shash_get_flags(tctx->hash) &
+ CRYPTO_TFM_RES_MASK);
+ keyp += NHPOLY1305_KEY_SIZE;
+ WARN_ON(keyp != &data->derived_keys[ARRAY_SIZE(data->derived_keys)]);
+out:
+ kzfree(data);
+ return err;
+}
+
+/* Addition in Z/(2^{128}Z) */
+static inline void le128_add(le128 *r, const le128 *v1, const le128 *v2)
+{
+ u64 x = le64_to_cpu(v1->b);
+ u64 y = le64_to_cpu(v2->b);
+
+ r->b = cpu_to_le64(x + y);
+ r->a = cpu_to_le64(le64_to_cpu(v1->a) + le64_to_cpu(v2->a) +
+ (x + y < x));
+}
+
+/* Subtraction in Z/(2^{128}Z) */
+static inline void le128_sub(le128 *r, const le128 *v1, const le128 *v2)
+{
+ u64 x = le64_to_cpu(v1->b);
+ u64 y = le64_to_cpu(v2->b);
+
+ r->b = cpu_to_le64(x - y);
+ r->a = cpu_to_le64(le64_to_cpu(v1->a) - le64_to_cpu(v2->a) -
+ (x - y > x));
+}
+
+/*
+ * Apply the Poly1305 ε-∆U hash function to (bulk length, tweak) and save the
+ * result to rctx->header_hash. This is the calculation
+ *
+ * H_T ← Poly1305_{K_T}(bin_{128}(|L|) || T)
+ *
+ * from the procedure in section 6.4 of the Adiantum paper. The resulting value
+ * is reused in both the first and second hash steps. Specifically, it's added
+ * to the result of an independently keyed ε-∆U hash function (for equal length
+ * inputs only) taken over the left-hand part (the "bulk") of the message, to
+ * give the overall Adiantum hash of the (tweak, left-hand part) pair.
+ */
+static void adiantum_hash_header(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ const struct adiantum_tfm_ctx *tctx = crypto_skcipher_ctx(tfm);
+ struct adiantum_request_ctx *rctx = skcipher_request_ctx(req);
+ const unsigned int bulk_len = req->cryptlen - BLOCKCIPHER_BLOCK_SIZE;
+ struct {
+ __le64 message_bits;
+ __le64 padding;
+ } header = {
+ .message_bits = cpu_to_le64((u64)bulk_len * 8)
+ };
+ struct poly1305_state state;
+
+ poly1305_core_init(&state);
+
+ BUILD_BUG_ON(sizeof(header) % POLY1305_BLOCK_SIZE != 0);
+ poly1305_core_blocks(&state, &tctx->header_hash_key,
+ &header, sizeof(header) / POLY1305_BLOCK_SIZE, 1);
+
+ BUILD_BUG_ON(TWEAK_SIZE % POLY1305_BLOCK_SIZE != 0);
+ poly1305_core_blocks(&state, &tctx->header_hash_key, req->iv,
+ TWEAK_SIZE / POLY1305_BLOCK_SIZE, 1);
+
+ poly1305_core_emit(&state, NULL, &rctx->header_hash);
+}
+
+/* Hash the left-hand part (the "bulk") of the message using NHPoly1305 */
+static int adiantum_hash_message(struct skcipher_request *req,
+ struct scatterlist *sgl, le128 *digest)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ const struct adiantum_tfm_ctx *tctx = crypto_skcipher_ctx(tfm);
+ struct adiantum_request_ctx *rctx = skcipher_request_ctx(req);
+ const unsigned int bulk_len = req->cryptlen - BLOCKCIPHER_BLOCK_SIZE;
+ struct shash_desc *hash_desc = &rctx->u.hash_desc;
+ struct sg_mapping_iter miter;
+ unsigned int i, n;
+ int err;
+
+ hash_desc->tfm = tctx->hash;
+ hash_desc->flags = 0;
+
+ err = crypto_shash_init(hash_desc);
+ if (err)
+ return err;
+
+ sg_miter_start(&miter, sgl, sg_nents(sgl),
+ SG_MITER_FROM_SG | SG_MITER_ATOMIC);
+ for (i = 0; i < bulk_len; i += n) {
+ sg_miter_next(&miter);
+ n = min_t(unsigned int, miter.length, bulk_len - i);
+ err = crypto_shash_update(hash_desc, miter.addr, n);
+ if (err)
+ break;
+ }
+ sg_miter_stop(&miter);
+ if (err)
+ return err;
+
+ return crypto_shash_final(hash_desc, (u8 *)digest);
+}
+
+/* Continue Adiantum encryption/decryption after the stream cipher step */
+static int adiantum_finish(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ const struct adiantum_tfm_ctx *tctx = crypto_skcipher_ctx(tfm);
+ struct adiantum_request_ctx *rctx = skcipher_request_ctx(req);
+ const unsigned int bulk_len = req->cryptlen - BLOCKCIPHER_BLOCK_SIZE;
+ le128 digest;
+ int err;
+
+ /* If decrypting, decrypt C_M with the block cipher to get P_M */
+ if (!rctx->enc)
+ crypto_cipher_decrypt_one(tctx->blockcipher, rctx->rbuf.bytes,
+ rctx->rbuf.bytes);
+
+ /*
+ * Second hash step
+ * enc: C_R = C_M - H_{K_H}(T, C_L)
+ * dec: P_R = P_M - H_{K_H}(T, P_L)
+ */
+ err = adiantum_hash_message(req, req->dst, &digest);
+ if (err)
+ return err;
+ le128_add(&digest, &digest, &rctx->header_hash);
+ le128_sub(&rctx->rbuf.bignum, &rctx->rbuf.bignum, &digest);
+ scatterwalk_map_and_copy(&rctx->rbuf.bignum, req->dst,
+ bulk_len, BLOCKCIPHER_BLOCK_SIZE, 1);
+ return 0;
+}
+
+static void adiantum_streamcipher_done(struct crypto_async_request *areq,
+ int err)
+{
+ struct skcipher_request *req = areq->data;
+
+ if (!err)
+ err = adiantum_finish(req);
+
+ skcipher_request_complete(req, err);
+}
+
+static int adiantum_crypt(struct skcipher_request *req, bool enc)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ const struct adiantum_tfm_ctx *tctx = crypto_skcipher_ctx(tfm);
+ struct adiantum_request_ctx *rctx = skcipher_request_ctx(req);
+ const unsigned int bulk_len = req->cryptlen - BLOCKCIPHER_BLOCK_SIZE;
+ unsigned int stream_len;
+ le128 digest;
+ int err;
+
+ if (req->cryptlen < BLOCKCIPHER_BLOCK_SIZE)
+ return -EINVAL;
+
+ rctx->enc = enc;
+
+ /*
+ * First hash step
+ * enc: P_M = P_R + H_{K_H}(T, P_L)
+ * dec: C_M = C_R + H_{K_H}(T, C_L)
+ */
+ adiantum_hash_header(req);
+ err = adiantum_hash_message(req, req->src, &digest);
+ if (err)
+ return err;
+ le128_add(&digest, &digest, &rctx->header_hash);
+ scatterwalk_map_and_copy(&rctx->rbuf.bignum, req->src,
+ bulk_len, BLOCKCIPHER_BLOCK_SIZE, 0);
+ le128_add(&rctx->rbuf.bignum, &rctx->rbuf.bignum, &digest);
+
+ /* If encrypting, encrypt P_M with the block cipher to get C_M */
+ if (enc)
+ crypto_cipher_encrypt_one(tctx->blockcipher, rctx->rbuf.bytes,
+ rctx->rbuf.bytes);
+
+ /* Initialize the rest of the XChaCha IV (first part is C_M) */
+ BUILD_BUG_ON(BLOCKCIPHER_BLOCK_SIZE != 16);
+ BUILD_BUG_ON(XCHACHA_IV_SIZE != 32); /* nonce || stream position */
+ rctx->rbuf.words[4] = cpu_to_le32(1);
+ rctx->rbuf.words[5] = 0;
+ rctx->rbuf.words[6] = 0;
+ rctx->rbuf.words[7] = 0;
+
+ /*
+ * XChaCha needs to be done on all the data except the last 16 bytes;
+ * for disk encryption that usually means 4080 or 496 bytes. But ChaCha
+ * implementations tend to be most efficient when passed a whole number
+ * of 64-byte ChaCha blocks, or sometimes even a multiple of 256 bytes.
+ * And here it doesn't matter whether the last 16 bytes are written to,
+ * as the second hash step will overwrite them. Thus, round the XChaCha
+ * length up to the next 64-byte boundary if possible.
+ */
+ stream_len = bulk_len;
+ if (round_up(stream_len, CHACHA_BLOCK_SIZE) <= req->cryptlen)
+ stream_len = round_up(stream_len, CHACHA_BLOCK_SIZE);
+
+ skcipher_request_set_tfm(&rctx->u.streamcipher_req, tctx->streamcipher);
+ skcipher_request_set_crypt(&rctx->u.streamcipher_req, req->src,
+ req->dst, stream_len, &rctx->rbuf);
+ skcipher_request_set_callback(&rctx->u.streamcipher_req,
+ req->base.flags,
+ adiantum_streamcipher_done, req);
+ return crypto_skcipher_encrypt(&rctx->u.streamcipher_req) ?:
+ adiantum_finish(req);
+}
+
+static int adiantum_encrypt(struct skcipher_request *req)
+{
+ return adiantum_crypt(req, true);
+}
+
+static int adiantum_decrypt(struct skcipher_request *req)
+{
+ return adiantum_crypt(req, false);
+}
+
+static int adiantum_init_tfm(struct crypto_skcipher *tfm)
+{
+ struct skcipher_instance *inst = skcipher_alg_instance(tfm);
+ struct adiantum_instance_ctx *ictx = skcipher_instance_ctx(inst);
+ struct adiantum_tfm_ctx *tctx = crypto_skcipher_ctx(tfm);
+ struct crypto_skcipher *streamcipher;
+ struct crypto_cipher *blockcipher;
+ struct crypto_shash *hash;
+ unsigned int subreq_size;
+ int err;
+
+ streamcipher = crypto_spawn_skcipher(&ictx->streamcipher_spawn);
+ if (IS_ERR(streamcipher))
+ return PTR_ERR(streamcipher);
+
+ blockcipher = crypto_spawn_cipher(&ictx->blockcipher_spawn);
+ if (IS_ERR(blockcipher)) {
+ err = PTR_ERR(blockcipher);
+ goto err_free_streamcipher;
+ }
+
+ hash = crypto_spawn_shash(&ictx->hash_spawn);
+ if (IS_ERR(hash)) {
+ err = PTR_ERR(hash);
+ goto err_free_blockcipher;
+ }
+
+ tctx->streamcipher = streamcipher;
+ tctx->blockcipher = blockcipher;
+ tctx->hash = hash;
+
+ BUILD_BUG_ON(offsetofend(struct adiantum_request_ctx, u) !=
+ sizeof(struct adiantum_request_ctx));
+ subreq_size = max(FIELD_SIZEOF(struct adiantum_request_ctx,
+ u.hash_desc) +
+ crypto_shash_descsize(hash),
+ FIELD_SIZEOF(struct adiantum_request_ctx,
+ u.streamcipher_req) +
+ crypto_skcipher_reqsize(streamcipher));
+
+ crypto_skcipher_set_reqsize(tfm,
+ offsetof(struct adiantum_request_ctx, u) +
+ subreq_size);
+ return 0;
+
+err_free_blockcipher:
+ crypto_free_cipher(blockcipher);
+err_free_streamcipher:
+ crypto_free_skcipher(streamcipher);
+ return err;
+}
+
+static void adiantum_exit_tfm(struct crypto_skcipher *tfm)
+{
+ struct adiantum_tfm_ctx *tctx = crypto_skcipher_ctx(tfm);
+
+ crypto_free_skcipher(tctx->streamcipher);
+ crypto_free_cipher(tctx->blockcipher);
+ crypto_free_shash(tctx->hash);
+}
+
+static void adiantum_free_instance(struct skcipher_instance *inst)
+{
+ struct adiantum_instance_ctx *ictx = skcipher_instance_ctx(inst);
+
+ crypto_drop_skcipher(&ictx->streamcipher_spawn);
+ crypto_drop_spawn(&ictx->blockcipher_spawn);
+ crypto_drop_shash(&ictx->hash_spawn);
+ kfree(inst);
+}
+
+/*
+ * Check for a supported set of inner algorithms.
+ * See the comment at the beginning of this file.
+ */
+static bool adiantum_supported_algorithms(struct skcipher_alg *streamcipher_alg,
+ struct crypto_alg *blockcipher_alg,
+ struct shash_alg *hash_alg)
+{
+ if (strcmp(streamcipher_alg->base.cra_name, "xchacha12") != 0 &&
+ strcmp(streamcipher_alg->base.cra_name, "xchacha20") != 0)
+ return false;
+
+ if (blockcipher_alg->cra_cipher.cia_min_keysize > BLOCKCIPHER_KEY_SIZE ||
+ blockcipher_alg->cra_cipher.cia_max_keysize < BLOCKCIPHER_KEY_SIZE)
+ return false;
+ if (blockcipher_alg->cra_blocksize != BLOCKCIPHER_BLOCK_SIZE)
+ return false;
+
+ if (strcmp(hash_alg->base.cra_name, "nhpoly1305") != 0)
+ return false;
+
+ return true;
+}
+
+static int adiantum_create(struct crypto_template *tmpl, struct rtattr **tb)
+{
+ struct crypto_attr_type *algt;
+ const char *streamcipher_name;
+ const char *blockcipher_name;
+ const char *nhpoly1305_name;
+ struct skcipher_instance *inst;
+ struct adiantum_instance_ctx *ictx;
+ struct skcipher_alg *streamcipher_alg;
+ struct crypto_alg *blockcipher_alg;
+ struct crypto_alg *_hash_alg;
+ struct shash_alg *hash_alg;
+ int err;
+
+ algt = crypto_get_attr_type(tb);
+ if (IS_ERR(algt))
+ return PTR_ERR(algt);
+
+ if ((algt->type ^ CRYPTO_ALG_TYPE_SKCIPHER) & algt->mask)
+ return -EINVAL;
+
+ streamcipher_name = crypto_attr_alg_name(tb[1]);
+ if (IS_ERR(streamcipher_name))
+ return PTR_ERR(streamcipher_name);
+
+ blockcipher_name = crypto_attr_alg_name(tb[2]);
+ if (IS_ERR(blockcipher_name))
+ return PTR_ERR(blockcipher_name);
+
+ nhpoly1305_name = crypto_attr_alg_name(tb[3]);
+ if (nhpoly1305_name == ERR_PTR(-ENOENT))
+ nhpoly1305_name = "nhpoly1305";
+ if (IS_ERR(nhpoly1305_name))
+ return PTR_ERR(nhpoly1305_name);
+
+ inst = kzalloc(sizeof(*inst) + sizeof(*ictx), GFP_KERNEL);
+ if (!inst)
+ return -ENOMEM;
+ ictx = skcipher_instance_ctx(inst);
+
+ /* Stream cipher, e.g. "xchacha12" */
+ crypto_set_skcipher_spawn(&ictx->streamcipher_spawn,
+ skcipher_crypto_instance(inst));
+ err = crypto_grab_skcipher(&ictx->streamcipher_spawn, streamcipher_name,
+ 0, crypto_requires_sync(algt->type,
+ algt->mask));
+ if (err)
+ goto out_free_inst;
+ streamcipher_alg = crypto_spawn_skcipher_alg(&ictx->streamcipher_spawn);
+
+ /* Block cipher, e.g. "aes" */
+ crypto_set_spawn(&ictx->blockcipher_spawn,
+ skcipher_crypto_instance(inst));
+ err = crypto_grab_spawn(&ictx->blockcipher_spawn, blockcipher_name,
+ CRYPTO_ALG_TYPE_CIPHER, CRYPTO_ALG_TYPE_MASK);
+ if (err)
+ goto out_drop_streamcipher;
+ blockcipher_alg = ictx->blockcipher_spawn.alg;
+
+ /* NHPoly1305 ε-∆U hash function */
+ _hash_alg = crypto_alg_mod_lookup(nhpoly1305_name,
+ CRYPTO_ALG_TYPE_SHASH,
+ CRYPTO_ALG_TYPE_MASK);
+ if (IS_ERR(_hash_alg)) {
+ err = PTR_ERR(_hash_alg);
+ goto out_drop_blockcipher;
+ }
+ hash_alg = __crypto_shash_alg(_hash_alg);
+ err = crypto_init_shash_spawn(&ictx->hash_spawn, hash_alg,
+ skcipher_crypto_instance(inst));
+ if (err)
+ goto out_put_hash;
+
+ /* Check the set of algorithms */
+ if (!adiantum_supported_algorithms(streamcipher_alg, blockcipher_alg,
+ hash_alg)) {
+ pr_warn("Unsupported Adiantum instantiation: (%s,%s,%s)\n",
+ streamcipher_alg->base.cra_name,
+ blockcipher_alg->cra_name, hash_alg->base.cra_name);
+ err = -EINVAL;
+ goto out_drop_hash;
+ }
+
+ /* Instance fields */
+
+ err = -ENAMETOOLONG;
+ if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,
+ "adiantum(%s,%s)", streamcipher_alg->base.cra_name,
+ blockcipher_alg->cra_name) >= CRYPTO_MAX_ALG_NAME)
+ goto out_drop_hash;
+ if (snprintf(inst->alg.base.cra_driver_name, CRYPTO_MAX_ALG_NAME,
+ "adiantum(%s,%s,%s)",
+ streamcipher_alg->base.cra_driver_name,
+ blockcipher_alg->cra_driver_name,
+ hash_alg->base.cra_driver_name) >= CRYPTO_MAX_ALG_NAME)
+ goto out_drop_hash;
+
+ inst->alg.base.cra_flags = streamcipher_alg->base.cra_flags &
+ CRYPTO_ALG_ASYNC;
+ inst->alg.base.cra_blocksize = BLOCKCIPHER_BLOCK_SIZE;
+ inst->alg.base.cra_ctxsize = sizeof(struct adiantum_tfm_ctx);
+ inst->alg.base.cra_alignmask = streamcipher_alg->base.cra_alignmask |
+ hash_alg->base.cra_alignmask;
+ /*
+ * The block cipher is only invoked once per message, so for long
+ * messages (e.g. sectors for disk encryption) its performance doesn't
+ * matter as much as that of the stream cipher and hash function. Thus,
+ * weigh the block cipher's ->cra_priority less.
+ */
+ inst->alg.base.cra_priority = (4 * streamcipher_alg->base.cra_priority +
+ 2 * hash_alg->base.cra_priority +
+ blockcipher_alg->cra_priority) / 7;
+
+ inst->alg.setkey = adiantum_setkey;
+ inst->alg.encrypt = adiantum_encrypt;
+ inst->alg.decrypt = adiantum_decrypt;
+ inst->alg.init = adiantum_init_tfm;
+ inst->alg.exit = adiantum_exit_tfm;
+ inst->alg.min_keysize = crypto_skcipher_alg_min_keysize(streamcipher_alg);
+ inst->alg.max_keysize = crypto_skcipher_alg_max_keysize(streamcipher_alg);
+ inst->alg.ivsize = TWEAK_SIZE;
+
+ inst->free = adiantum_free_instance;
+
+ err = skcipher_register_instance(tmpl, inst);
+ if (err)
+ goto out_drop_hash;
+
+ crypto_mod_put(_hash_alg);
+ return 0;
+
+out_drop_hash:
+ crypto_drop_shash(&ictx->hash_spawn);
+out_put_hash:
+ crypto_mod_put(_hash_alg);
+out_drop_blockcipher:
+ crypto_drop_spawn(&ictx->blockcipher_spawn);
+out_drop_streamcipher:
+ crypto_drop_skcipher(&ictx->streamcipher_spawn);
+out_free_inst:
+ kfree(inst);
+ return err;
+}
+
+/* adiantum(streamcipher_name, blockcipher_name [, nhpoly1305_name]) */
+static struct crypto_template adiantum_tmpl = {
+ .name = "adiantum",
+ .create = adiantum_create,
+ .module = THIS_MODULE,
+};
+
+static int __init adiantum_module_init(void)
+{
+ return crypto_register_template(&adiantum_tmpl);
+}
+
+static void __exit adiantum_module_exit(void)
+{
+ crypto_unregister_template(&adiantum_tmpl);
+}
+
+module_init(adiantum_module_init);
+module_exit(adiantum_module_exit);
+
+MODULE_DESCRIPTION("Adiantum length-preserving encryption mode");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Eric Biggers <ebiggers@google.com>");
+MODULE_ALIAS_CRYPTO("adiantum");
diff --git a/crypto/aes_generic.c b/crypto/aes_generic.c
index ca554d5..13df33a 100644
--- a/crypto/aes_generic.c
+++ b/crypto/aes_generic.c
@@ -63,7 +63,8 @@ static inline u8 byte(const u32 x, const unsigned n)
static const u32 rco_tab[10] = { 1, 2, 4, 8, 16, 32, 64, 128, 27, 54 };
-__visible const u32 crypto_ft_tab[4][256] = {
+/* cacheline-aligned to facilitate prefetching into cache */
+__visible const u32 crypto_ft_tab[4][256] __cacheline_aligned = {
{
0xa56363c6, 0x847c7cf8, 0x997777ee, 0x8d7b7bf6,
0x0df2f2ff, 0xbd6b6bd6, 0xb16f6fde, 0x54c5c591,
@@ -327,7 +328,7 @@ __visible const u32 crypto_ft_tab[4][256] = {
}
};
-__visible const u32 crypto_fl_tab[4][256] = {
+__visible const u32 crypto_fl_tab[4][256] __cacheline_aligned = {
{
0x00000063, 0x0000007c, 0x00000077, 0x0000007b,
0x000000f2, 0x0000006b, 0x0000006f, 0x000000c5,
@@ -591,7 +592,7 @@ __visible const u32 crypto_fl_tab[4][256] = {
}
};
-__visible const u32 crypto_it_tab[4][256] = {
+__visible const u32 crypto_it_tab[4][256] __cacheline_aligned = {
{
0x50a7f451, 0x5365417e, 0xc3a4171a, 0x965e273a,
0xcb6bab3b, 0xf1459d1f, 0xab58faac, 0x9303e34b,
@@ -855,7 +856,7 @@ __visible const u32 crypto_it_tab[4][256] = {
}
};
-__visible const u32 crypto_il_tab[4][256] = {
+__visible const u32 crypto_il_tab[4][256] __cacheline_aligned = {
{
0x00000052, 0x00000009, 0x0000006a, 0x000000d5,
0x00000030, 0x00000036, 0x000000a5, 0x00000038,
diff --git a/crypto/blake2s_generic.c b/crypto/blake2s_generic.c
new file mode 100644
index 0000000..139c745
--- /dev/null
+++ b/crypto/blake2s_generic.c
@@ -0,0 +1,170 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#include <crypto/internal/blake2s.h>
+#include <crypto/internal/hash.h>
+
+#include <linux/types.h>
+#include <linux/jump_label.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+static int crypto_blake2s_setkey(struct crypto_shash *tfm, const u8 *key,
+ unsigned int keylen)
+{
+ struct blake2s_tfm_ctx *tctx = crypto_shash_ctx(tfm);
+
+ if (keylen == 0 || keylen > BLAKE2S_KEY_SIZE) {
+ crypto_shash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ return -EINVAL;
+ }
+
+ memcpy(tctx->key, key, keylen);
+ tctx->keylen = keylen;
+
+ return 0;
+}
+
+static int crypto_blake2s_init(struct shash_desc *desc)
+{
+ struct blake2s_tfm_ctx *tctx = crypto_shash_ctx(desc->tfm);
+ struct blake2s_state *state = shash_desc_ctx(desc);
+ const int outlen = crypto_shash_digestsize(desc->tfm);
+
+ if (tctx->keylen)
+ blake2s_init_key(state, outlen, tctx->key, tctx->keylen);
+ else
+ blake2s_init(state, outlen);
+
+ return 0;
+}
+
+static int crypto_blake2s_update(struct shash_desc *desc, const u8 *in,
+ unsigned int inlen)
+{
+ struct blake2s_state *state = shash_desc_ctx(desc);
+ const size_t fill = BLAKE2S_BLOCK_SIZE - state->buflen;
+
+ if (unlikely(!inlen))
+ return 0;
+ if (inlen > fill) {
+ memcpy(state->buf + state->buflen, in, fill);
+ blake2s_compress_generic(state, state->buf, 1, BLAKE2S_BLOCK_SIZE);
+ state->buflen = 0;
+ in += fill;
+ inlen -= fill;
+ }
+ if (inlen > BLAKE2S_BLOCK_SIZE) {
+ const size_t nblocks = DIV_ROUND_UP(inlen, BLAKE2S_BLOCK_SIZE);
+ /* Hash one less (full) block than strictly possible */
+ blake2s_compress_generic(state, in, nblocks - 1, BLAKE2S_BLOCK_SIZE);
+ in += BLAKE2S_BLOCK_SIZE * (nblocks - 1);
+ inlen -= BLAKE2S_BLOCK_SIZE * (nblocks - 1);
+ }
+ memcpy(state->buf + state->buflen, in, inlen);
+ state->buflen += inlen;
+
+ return 0;
+}
+
+static int crypto_blake2s_final(struct shash_desc *desc, u8 *out)
+{
+ struct blake2s_state *state = shash_desc_ctx(desc);
+
+ blake2s_set_lastblock(state);
+ memset(state->buf + state->buflen, 0,
+ BLAKE2S_BLOCK_SIZE - state->buflen); /* Padding */
+ blake2s_compress_generic(state, state->buf, 1, state->buflen);
+ cpu_to_le32_array(state->h, ARRAY_SIZE(state->h));
+ memcpy(out, state->h, state->outlen);
+ memzero_explicit(state, sizeof(*state));
+
+ return 0;
+}
+
+static struct shash_alg blake2s_algs[] = {{
+ .base.cra_name = "blake2s-128",
+ .base.cra_driver_name = "blake2s-128-generic",
+ .base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY,
+ .base.cra_ctxsize = sizeof(struct blake2s_tfm_ctx),
+ .base.cra_priority = 200,
+ .base.cra_blocksize = BLAKE2S_BLOCK_SIZE,
+ .base.cra_module = THIS_MODULE,
+
+ .digestsize = BLAKE2S_128_HASH_SIZE,
+ .setkey = crypto_blake2s_setkey,
+ .init = crypto_blake2s_init,
+ .update = crypto_blake2s_update,
+ .final = crypto_blake2s_final,
+ .descsize = sizeof(struct blake2s_state),
+}, {
+ .base.cra_name = "blake2s-160",
+ .base.cra_driver_name = "blake2s-160-generic",
+ .base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY,
+ .base.cra_ctxsize = sizeof(struct blake2s_tfm_ctx),
+ .base.cra_priority = 200,
+ .base.cra_blocksize = BLAKE2S_BLOCK_SIZE,
+ .base.cra_module = THIS_MODULE,
+
+ .digestsize = BLAKE2S_160_HASH_SIZE,
+ .setkey = crypto_blake2s_setkey,
+ .init = crypto_blake2s_init,
+ .update = crypto_blake2s_update,
+ .final = crypto_blake2s_final,
+ .descsize = sizeof(struct blake2s_state),
+}, {
+ .base.cra_name = "blake2s-224",
+ .base.cra_driver_name = "blake2s-224-generic",
+ .base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY,
+ .base.cra_ctxsize = sizeof(struct blake2s_tfm_ctx),
+ .base.cra_priority = 200,
+ .base.cra_blocksize = BLAKE2S_BLOCK_SIZE,
+ .base.cra_module = THIS_MODULE,
+
+ .digestsize = BLAKE2S_224_HASH_SIZE,
+ .setkey = crypto_blake2s_setkey,
+ .init = crypto_blake2s_init,
+ .update = crypto_blake2s_update,
+ .final = crypto_blake2s_final,
+ .descsize = sizeof(struct blake2s_state),
+}, {
+ .base.cra_name = "blake2s-256",
+ .base.cra_driver_name = "blake2s-256-generic",
+ .base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY,
+ .base.cra_ctxsize = sizeof(struct blake2s_tfm_ctx),
+ .base.cra_priority = 200,
+ .base.cra_blocksize = BLAKE2S_BLOCK_SIZE,
+ .base.cra_module = THIS_MODULE,
+
+ .digestsize = BLAKE2S_256_HASH_SIZE,
+ .setkey = crypto_blake2s_setkey,
+ .init = crypto_blake2s_init,
+ .update = crypto_blake2s_update,
+ .final = crypto_blake2s_final,
+ .descsize = sizeof(struct blake2s_state),
+}};
+
+static int __init blake2s_mod_init(void)
+{
+ return crypto_register_shashes(blake2s_algs, ARRAY_SIZE(blake2s_algs));
+}
+
+static void __exit blake2s_mod_exit(void)
+{
+ crypto_unregister_shashes(blake2s_algs, ARRAY_SIZE(blake2s_algs));
+}
+
+subsys_initcall(blake2s_mod_init);
+module_exit(blake2s_mod_exit);
+
+MODULE_ALIAS_CRYPTO("blake2s-128");
+MODULE_ALIAS_CRYPTO("blake2s-128-generic");
+MODULE_ALIAS_CRYPTO("blake2s-160");
+MODULE_ALIAS_CRYPTO("blake2s-160-generic");
+MODULE_ALIAS_CRYPTO("blake2s-224");
+MODULE_ALIAS_CRYPTO("blake2s-224-generic");
+MODULE_ALIAS_CRYPTO("blake2s-256");
+MODULE_ALIAS_CRYPTO("blake2s-256-generic");
+MODULE_LICENSE("GPL v2");
diff --git a/crypto/chacha20_generic.c b/crypto/chacha20_generic.c
deleted file mode 100644
index 3ae96587..0000000
--- a/crypto/chacha20_generic.c
+++ /dev/null
@@ -1,137 +0,0 @@
-/*
- * ChaCha20 256-bit cipher algorithm, RFC7539
- *
- * Copyright (C) 2015 Martin Willi
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#include <asm/unaligned.h>
-#include <crypto/algapi.h>
-#include <crypto/chacha20.h>
-#include <crypto/internal/skcipher.h>
-#include <linux/module.h>
-
-static void chacha20_docrypt(u32 *state, u8 *dst, const u8 *src,
- unsigned int bytes)
-{
- /* aligned to potentially speed up crypto_xor() */
- u8 stream[CHACHA20_BLOCK_SIZE] __aligned(sizeof(long));
-
- if (dst != src)
- memcpy(dst, src, bytes);
-
- while (bytes >= CHACHA20_BLOCK_SIZE) {
- chacha20_block(state, stream);
- crypto_xor(dst, stream, CHACHA20_BLOCK_SIZE);
- bytes -= CHACHA20_BLOCK_SIZE;
- dst += CHACHA20_BLOCK_SIZE;
- }
- if (bytes) {
- chacha20_block(state, stream);
- crypto_xor(dst, stream, bytes);
- }
-}
-
-void crypto_chacha20_init(u32 *state, struct chacha20_ctx *ctx, u8 *iv)
-{
- state[0] = 0x61707865; /* "expa" */
- state[1] = 0x3320646e; /* "nd 3" */
- state[2] = 0x79622d32; /* "2-by" */
- state[3] = 0x6b206574; /* "te k" */
- state[4] = ctx->key[0];
- state[5] = ctx->key[1];
- state[6] = ctx->key[2];
- state[7] = ctx->key[3];
- state[8] = ctx->key[4];
- state[9] = ctx->key[5];
- state[10] = ctx->key[6];
- state[11] = ctx->key[7];
- state[12] = get_unaligned_le32(iv + 0);
- state[13] = get_unaligned_le32(iv + 4);
- state[14] = get_unaligned_le32(iv + 8);
- state[15] = get_unaligned_le32(iv + 12);
-}
-EXPORT_SYMBOL_GPL(crypto_chacha20_init);
-
-int crypto_chacha20_setkey(struct crypto_skcipher *tfm, const u8 *key,
- unsigned int keysize)
-{
- struct chacha20_ctx *ctx = crypto_skcipher_ctx(tfm);
- int i;
-
- if (keysize != CHACHA20_KEY_SIZE)
- return -EINVAL;
-
- for (i = 0; i < ARRAY_SIZE(ctx->key); i++)
- ctx->key[i] = get_unaligned_le32(key + i * sizeof(u32));
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(crypto_chacha20_setkey);
-
-int crypto_chacha20_crypt(struct skcipher_request *req)
-{
- struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
- struct chacha20_ctx *ctx = crypto_skcipher_ctx(tfm);
- struct skcipher_walk walk;
- u32 state[16];
- int err;
-
- err = skcipher_walk_virt(&walk, req, true);
-
- crypto_chacha20_init(state, ctx, walk.iv);
-
- while (walk.nbytes > 0) {
- unsigned int nbytes = walk.nbytes;
-
- if (nbytes < walk.total)
- nbytes = round_down(nbytes, walk.stride);
-
- chacha20_docrypt(state, walk.dst.virt.addr, walk.src.virt.addr,
- nbytes);
- err = skcipher_walk_done(&walk, walk.nbytes - nbytes);
- }
-
- return err;
-}
-EXPORT_SYMBOL_GPL(crypto_chacha20_crypt);
-
-static struct skcipher_alg alg = {
- .base.cra_name = "chacha20",
- .base.cra_driver_name = "chacha20-generic",
- .base.cra_priority = 100,
- .base.cra_blocksize = 1,
- .base.cra_ctxsize = sizeof(struct chacha20_ctx),
- .base.cra_module = THIS_MODULE,
-
- .min_keysize = CHACHA20_KEY_SIZE,
- .max_keysize = CHACHA20_KEY_SIZE,
- .ivsize = CHACHA20_IV_SIZE,
- .chunksize = CHACHA20_BLOCK_SIZE,
- .setkey = crypto_chacha20_setkey,
- .encrypt = crypto_chacha20_crypt,
- .decrypt = crypto_chacha20_crypt,
-};
-
-static int __init chacha20_generic_mod_init(void)
-{
- return crypto_register_skcipher(&alg);
-}
-
-static void __exit chacha20_generic_mod_fini(void)
-{
- crypto_unregister_skcipher(&alg);
-}
-
-module_init(chacha20_generic_mod_init);
-module_exit(chacha20_generic_mod_fini);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Martin Willi <martin@strongswan.org>");
-MODULE_DESCRIPTION("chacha20 cipher algorithm");
-MODULE_ALIAS_CRYPTO("chacha20");
-MODULE_ALIAS_CRYPTO("chacha20-generic");
diff --git a/crypto/chacha20poly1305.c b/crypto/chacha20poly1305.c
index af8afe5..dce194c 100644
--- a/crypto/chacha20poly1305.c
+++ b/crypto/chacha20poly1305.c
@@ -13,7 +13,7 @@
#include <crypto/internal/hash.h>
#include <crypto/internal/skcipher.h>
#include <crypto/scatterwalk.h>
-#include <crypto/chacha20.h>
+#include <crypto/chacha.h>
#include <crypto/poly1305.h>
#include <linux/err.h>
#include <linux/init.h>
@@ -51,7 +51,7 @@ struct poly_req {
};
struct chacha_req {
- u8 iv[CHACHA20_IV_SIZE];
+ u8 iv[CHACHA_IV_SIZE];
struct scatterlist src[1];
struct skcipher_request req; /* must be last member */
};
@@ -97,7 +97,7 @@ static void chacha_iv(u8 *iv, struct aead_request *req, u32 icb)
memcpy(iv, &leicb, sizeof(leicb));
memcpy(iv + sizeof(leicb), ctx->salt, ctx->saltlen);
memcpy(iv + sizeof(leicb) + ctx->saltlen, req->iv,
- CHACHA20_IV_SIZE - sizeof(leicb) - ctx->saltlen);
+ CHACHA_IV_SIZE - sizeof(leicb) - ctx->saltlen);
}
static int poly_verify_tag(struct aead_request *req)
@@ -502,7 +502,7 @@ static int chachapoly_setkey(struct crypto_aead *aead, const u8 *key,
struct chachapoly_ctx *ctx = crypto_aead_ctx(aead);
int err;
- if (keylen != ctx->saltlen + CHACHA20_KEY_SIZE)
+ if (keylen != ctx->saltlen + CHACHA_KEY_SIZE)
return -EINVAL;
keylen -= ctx->saltlen;
@@ -647,7 +647,7 @@ static int chachapoly_create(struct crypto_template *tmpl, struct rtattr **tb,
err = -EINVAL;
/* Need 16-byte IV size, including Initial Block Counter value */
- if (crypto_skcipher_alg_ivsize(chacha) != CHACHA20_IV_SIZE)
+ if (crypto_skcipher_alg_ivsize(chacha) != CHACHA_IV_SIZE)
goto out_drop_chacha;
/* Not a stream cipher? */
if (chacha->base.cra_blocksize != 1)
diff --git a/crypto/chacha_generic.c b/crypto/chacha_generic.c
new file mode 100644
index 0000000..b42198d
--- /dev/null
+++ b/crypto/chacha_generic.c
@@ -0,0 +1,143 @@
+/*
+ * ChaCha and XChaCha stream ciphers, including ChaCha20 (RFC7539)
+ *
+ * Copyright (C) 2015 Martin Willi
+ * Copyright (C) 2018 Google LLC
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <asm/unaligned.h>
+#include <crypto/algapi.h>
+#include <crypto/internal/chacha.h>
+#include <crypto/internal/skcipher.h>
+#include <linux/module.h>
+
+static int chacha_stream_xor(struct skcipher_request *req,
+ const struct chacha_ctx *ctx, const u8 *iv)
+{
+ struct skcipher_walk walk;
+ u32 state[16];
+ int err;
+
+ err = skcipher_walk_virt(&walk, req, false);
+
+ chacha_init_generic(state, ctx->key, iv);
+
+ while (walk.nbytes > 0) {
+ unsigned int nbytes = walk.nbytes;
+
+ if (nbytes < walk.total)
+ nbytes = round_down(nbytes, CHACHA_BLOCK_SIZE);
+
+ chacha_crypt_generic(state, walk.dst.virt.addr,
+ walk.src.virt.addr, nbytes, ctx->nrounds);
+ err = skcipher_walk_done(&walk, walk.nbytes - nbytes);
+ }
+
+ return err;
+}
+
+static int crypto_chacha_crypt(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+ return chacha_stream_xor(req, ctx, req->iv);
+}
+
+static int crypto_xchacha_crypt(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct chacha_ctx subctx;
+ u32 state[16];
+ u8 real_iv[16];
+
+ /* Compute the subkey given the original key and first 128 nonce bits */
+ chacha_init_generic(state, ctx->key, req->iv);
+ hchacha_block_generic(state, subctx.key, ctx->nrounds);
+ subctx.nrounds = ctx->nrounds;
+
+ /* Build the real IV */
+ memcpy(&real_iv[0], req->iv + 24, 8); /* stream position */
+ memcpy(&real_iv[8], req->iv + 16, 8); /* remaining 64 nonce bits */
+
+ /* Generate the stream and XOR it with the data */
+ return chacha_stream_xor(req, &subctx, real_iv);
+}
+
+static struct skcipher_alg algs[] = {
+ {
+ .base.cra_name = "chacha20",
+ .base.cra_driver_name = "chacha20-generic",
+ .base.cra_priority = 100,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
+ .base.cra_module = THIS_MODULE,
+
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = CHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
+ .setkey = chacha20_setkey,
+ .encrypt = crypto_chacha_crypt,
+ .decrypt = crypto_chacha_crypt,
+ }, {
+ .base.cra_name = "xchacha20",
+ .base.cra_driver_name = "xchacha20-generic",
+ .base.cra_priority = 100,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
+ .base.cra_module = THIS_MODULE,
+
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = XCHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
+ .setkey = chacha20_setkey,
+ .encrypt = crypto_xchacha_crypt,
+ .decrypt = crypto_xchacha_crypt,
+ }, {
+ .base.cra_name = "xchacha12",
+ .base.cra_driver_name = "xchacha12-generic",
+ .base.cra_priority = 100,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
+ .base.cra_module = THIS_MODULE,
+
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = XCHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
+ .setkey = chacha12_setkey,
+ .encrypt = crypto_xchacha_crypt,
+ .decrypt = crypto_xchacha_crypt,
+ }
+};
+
+static int __init chacha_generic_mod_init(void)
+{
+ return crypto_register_skciphers(algs, ARRAY_SIZE(algs));
+}
+
+static void __exit chacha_generic_mod_fini(void)
+{
+ crypto_unregister_skciphers(algs, ARRAY_SIZE(algs));
+}
+
+module_init(chacha_generic_mod_init);
+module_exit(chacha_generic_mod_fini);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Martin Willi <martin@strongswan.org>");
+MODULE_DESCRIPTION("ChaCha and XChaCha stream ciphers (generic)");
+MODULE_ALIAS_CRYPTO("chacha20");
+MODULE_ALIAS_CRYPTO("chacha20-generic");
+MODULE_ALIAS_CRYPTO("xchacha20");
+MODULE_ALIAS_CRYPTO("xchacha20-generic");
+MODULE_ALIAS_CRYPTO("xchacha12");
+MODULE_ALIAS_CRYPTO("xchacha12-generic");
diff --git a/crypto/curve25519-generic.c b/crypto/curve25519-generic.c
new file mode 100644
index 0000000..bd88fd5
--- /dev/null
+++ b/crypto/curve25519-generic.c
@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <crypto/curve25519.h>
+#include <crypto/internal/kpp.h>
+#include <crypto/kpp.h>
+#include <linux/module.h>
+#include <linux/scatterlist.h>
+
+static int curve25519_set_secret(struct crypto_kpp *tfm, const void *buf,
+ unsigned int len)
+{
+ u8 *secret = kpp_tfm_ctx(tfm);
+
+ if (!len)
+ curve25519_generate_secret(secret);
+ else if (len == CURVE25519_KEY_SIZE &&
+ crypto_memneq(buf, curve25519_null_point, CURVE25519_KEY_SIZE))
+ memcpy(secret, buf, CURVE25519_KEY_SIZE);
+ else
+ return -EINVAL;
+ return 0;
+}
+
+static int curve25519_compute_value(struct kpp_request *req)
+{
+ struct crypto_kpp *tfm = crypto_kpp_reqtfm(req);
+ const u8 *secret = kpp_tfm_ctx(tfm);
+ u8 public_key[CURVE25519_KEY_SIZE];
+ u8 buf[CURVE25519_KEY_SIZE];
+ int copied, nbytes;
+ u8 const *bp;
+
+ if (req->src) {
+ copied = sg_copy_to_buffer(req->src,
+ sg_nents_for_len(req->src,
+ CURVE25519_KEY_SIZE),
+ public_key, CURVE25519_KEY_SIZE);
+ if (copied != CURVE25519_KEY_SIZE)
+ return -EINVAL;
+ bp = public_key;
+ } else {
+ bp = curve25519_base_point;
+ }
+
+ curve25519_generic(buf, secret, bp);
+
+ /* might want less than we've got */
+ nbytes = min_t(size_t, CURVE25519_KEY_SIZE, req->dst_len);
+ copied = sg_copy_from_buffer(req->dst, sg_nents_for_len(req->dst,
+ nbytes),
+ buf, nbytes);
+ if (copied != nbytes)
+ return -EINVAL;
+ return 0;
+}
+
+static unsigned int curve25519_max_size(struct crypto_kpp *tfm)
+{
+ return CURVE25519_KEY_SIZE;
+}
+
+static struct kpp_alg curve25519_alg = {
+ .base.cra_name = "curve25519",
+ .base.cra_driver_name = "curve25519-generic",
+ .base.cra_priority = 100,
+ .base.cra_module = THIS_MODULE,
+ .base.cra_ctxsize = CURVE25519_KEY_SIZE,
+
+ .set_secret = curve25519_set_secret,
+ .generate_public_key = curve25519_compute_value,
+ .compute_shared_secret = curve25519_compute_value,
+ .max_size = curve25519_max_size,
+};
+
+static int curve25519_init(void)
+{
+ return crypto_register_kpp(&curve25519_alg);
+}
+
+static void curve25519_exit(void)
+{
+ crypto_unregister_kpp(&curve25519_alg);
+}
+
+subsys_initcall(curve25519_init);
+module_exit(curve25519_exit);
+
+MODULE_ALIAS_CRYPTO("curve25519");
+MODULE_ALIAS_CRYPTO("curve25519-generic");
+MODULE_LICENSE("GPL");
diff --git a/crypto/nhpoly1305.c b/crypto/nhpoly1305.c
new file mode 100644
index 0000000..52b94e9
--- /dev/null
+++ b/crypto/nhpoly1305.c
@@ -0,0 +1,255 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * NHPoly1305 - ε-almost-∆-universal hash function for Adiantum
+ *
+ * Copyright 2018 Google LLC
+ */
+
+/*
+ * "NHPoly1305" is the main component of Adiantum hashing.
+ * Specifically, it is the calculation
+ *
+ * H_L ← Poly1305_{K_L}(NH_{K_N}(pad_{128}(L)))
+ *
+ * from the procedure in section 6.4 of the Adiantum paper [1]. It is an
+ * ε-almost-∆-universal (ε-∆U) hash function for equal-length inputs over
+ * Z/(2^{128}Z), where the "∆" operation is addition. It hashes 1024-byte
+ * chunks of the input with the NH hash function [2], reducing the input length
+ * by 32x. The resulting NH digests are evaluated as a polynomial in
+ * GF(2^{130}-5), like in the Poly1305 MAC [3]. Note that the polynomial
+ * evaluation by itself would suffice to achieve the ε-∆U property; NH is used
+ * for performance since it's over twice as fast as Poly1305.
+ *
+ * This is *not* a cryptographic hash function; do not use it as such!
+ *
+ * [1] Adiantum: length-preserving encryption for entry-level processors
+ * (https://eprint.iacr.org/2018/720.pdf)
+ * [2] UMAC: Fast and Secure Message Authentication
+ * (https://fastcrypto.org/umac/umac_proc.pdf)
+ * [3] The Poly1305-AES message-authentication code
+ * (https://cr.yp.to/mac/poly1305-20050329.pdf)
+ */
+
+#include <asm/unaligned.h>
+#include <crypto/algapi.h>
+#include <crypto/internal/hash.h>
+#include <crypto/internal/poly1305.h>
+#include <crypto/nhpoly1305.h>
+#include <linux/crypto.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+static void nh_generic(const u32 *key, const u8 *message, size_t message_len,
+ __le64 hash[NH_NUM_PASSES])
+{
+ u64 sums[4] = { 0, 0, 0, 0 };
+
+ BUILD_BUG_ON(NH_PAIR_STRIDE != 2);
+ BUILD_BUG_ON(NH_NUM_PASSES != 4);
+
+ while (message_len) {
+ u32 m0 = get_unaligned_le32(message + 0);
+ u32 m1 = get_unaligned_le32(message + 4);
+ u32 m2 = get_unaligned_le32(message + 8);
+ u32 m3 = get_unaligned_le32(message + 12);
+
+ sums[0] += (u64)(u32)(m0 + key[ 0]) * (u32)(m2 + key[ 2]);
+ sums[1] += (u64)(u32)(m0 + key[ 4]) * (u32)(m2 + key[ 6]);
+ sums[2] += (u64)(u32)(m0 + key[ 8]) * (u32)(m2 + key[10]);
+ sums[3] += (u64)(u32)(m0 + key[12]) * (u32)(m2 + key[14]);
+ sums[0] += (u64)(u32)(m1 + key[ 1]) * (u32)(m3 + key[ 3]);
+ sums[1] += (u64)(u32)(m1 + key[ 5]) * (u32)(m3 + key[ 7]);
+ sums[2] += (u64)(u32)(m1 + key[ 9]) * (u32)(m3 + key[11]);
+ sums[3] += (u64)(u32)(m1 + key[13]) * (u32)(m3 + key[15]);
+ key += NH_MESSAGE_UNIT / sizeof(key[0]);
+ message += NH_MESSAGE_UNIT;
+ message_len -= NH_MESSAGE_UNIT;
+ }
+
+ hash[0] = cpu_to_le64(sums[0]);
+ hash[1] = cpu_to_le64(sums[1]);
+ hash[2] = cpu_to_le64(sums[2]);
+ hash[3] = cpu_to_le64(sums[3]);
+}
+
+/* Pass the next NH hash value through Poly1305 */
+static void process_nh_hash_value(struct nhpoly1305_state *state,
+ const struct nhpoly1305_key *key)
+{
+ BUILD_BUG_ON(NH_HASH_BYTES % POLY1305_BLOCK_SIZE != 0);
+
+ poly1305_core_blocks(&state->poly_state, &key->poly_key, state->nh_hash,
+ NH_HASH_BYTES / POLY1305_BLOCK_SIZE, 1);
+}
+
+/*
+ * Feed the next portion of the source data, as a whole number of 16-byte
+ * "NH message units", through NH and Poly1305. Each NH hash is taken over
+ * 1024 bytes, except possibly the final one which is taken over a multiple of
+ * 16 bytes up to 1024. Also, in the case where data is passed in misaligned
+ * chunks, we combine partial hashes; the end result is the same either way.
+ */
+static void nhpoly1305_units(struct nhpoly1305_state *state,
+ const struct nhpoly1305_key *key,
+ const u8 *src, unsigned int srclen, nh_t nh_fn)
+{
+ do {
+ unsigned int bytes;
+
+ if (state->nh_remaining == 0) {
+ /* Starting a new NH message */
+ bytes = min_t(unsigned int, srclen, NH_MESSAGE_BYTES);
+ nh_fn(key->nh_key, src, bytes, state->nh_hash);
+ state->nh_remaining = NH_MESSAGE_BYTES - bytes;
+ } else {
+ /* Continuing a previous NH message */
+ __le64 tmp_hash[NH_NUM_PASSES];
+ unsigned int pos;
+ int i;
+
+ pos = NH_MESSAGE_BYTES - state->nh_remaining;
+ bytes = min(srclen, state->nh_remaining);
+ nh_fn(&key->nh_key[pos / 4], src, bytes, tmp_hash);
+ for (i = 0; i < NH_NUM_PASSES; i++)
+ le64_add_cpu(&state->nh_hash[i],
+ le64_to_cpu(tmp_hash[i]));
+ state->nh_remaining -= bytes;
+ }
+ if (state->nh_remaining == 0)
+ process_nh_hash_value(state, key);
+ src += bytes;
+ srclen -= bytes;
+ } while (srclen);
+}
+
+int crypto_nhpoly1305_setkey(struct crypto_shash *tfm,
+ const u8 *key, unsigned int keylen)
+{
+ struct nhpoly1305_key *ctx = crypto_shash_ctx(tfm);
+ int i;
+
+ if (keylen != NHPOLY1305_KEY_SIZE)
+ return -EINVAL;
+
+ poly1305_core_setkey(&ctx->poly_key, key);
+ key += POLY1305_BLOCK_SIZE;
+
+ for (i = 0; i < NH_KEY_WORDS; i++)
+ ctx->nh_key[i] = get_unaligned_le32(key + i * sizeof(u32));
+
+ return 0;
+}
+EXPORT_SYMBOL(crypto_nhpoly1305_setkey);
+
+int crypto_nhpoly1305_init(struct shash_desc *desc)
+{
+ struct nhpoly1305_state *state = shash_desc_ctx(desc);
+
+ poly1305_core_init(&state->poly_state);
+ state->buflen = 0;
+ state->nh_remaining = 0;
+ return 0;
+}
+EXPORT_SYMBOL(crypto_nhpoly1305_init);
+
+int crypto_nhpoly1305_update_helper(struct shash_desc *desc,
+ const u8 *src, unsigned int srclen,
+ nh_t nh_fn)
+{
+ struct nhpoly1305_state *state = shash_desc_ctx(desc);
+ const struct nhpoly1305_key *key = crypto_shash_ctx(desc->tfm);
+ unsigned int bytes;
+
+ if (state->buflen) {
+ bytes = min(srclen, (int)NH_MESSAGE_UNIT - state->buflen);
+ memcpy(&state->buffer[state->buflen], src, bytes);
+ state->buflen += bytes;
+ if (state->buflen < NH_MESSAGE_UNIT)
+ return 0;
+ nhpoly1305_units(state, key, state->buffer, NH_MESSAGE_UNIT,
+ nh_fn);
+ state->buflen = 0;
+ src += bytes;
+ srclen -= bytes;
+ }
+
+ if (srclen >= NH_MESSAGE_UNIT) {
+ bytes = round_down(srclen, NH_MESSAGE_UNIT);
+ nhpoly1305_units(state, key, src, bytes, nh_fn);
+ src += bytes;
+ srclen -= bytes;
+ }
+
+ if (srclen) {
+ memcpy(state->buffer, src, srclen);
+ state->buflen = srclen;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(crypto_nhpoly1305_update_helper);
+
+int crypto_nhpoly1305_update(struct shash_desc *desc,
+ const u8 *src, unsigned int srclen)
+{
+ return crypto_nhpoly1305_update_helper(desc, src, srclen, nh_generic);
+}
+EXPORT_SYMBOL(crypto_nhpoly1305_update);
+
+int crypto_nhpoly1305_final_helper(struct shash_desc *desc, u8 *dst, nh_t nh_fn)
+{
+ struct nhpoly1305_state *state = shash_desc_ctx(desc);
+ const struct nhpoly1305_key *key = crypto_shash_ctx(desc->tfm);
+
+ if (state->buflen) {
+ memset(&state->buffer[state->buflen], 0,
+ NH_MESSAGE_UNIT - state->buflen);
+ nhpoly1305_units(state, key, state->buffer, NH_MESSAGE_UNIT,
+ nh_fn);
+ }
+
+ if (state->nh_remaining)
+ process_nh_hash_value(state, key);
+
+ poly1305_core_emit(&state->poly_state, NULL, dst);
+ return 0;
+}
+EXPORT_SYMBOL(crypto_nhpoly1305_final_helper);
+
+int crypto_nhpoly1305_final(struct shash_desc *desc, u8 *dst)
+{
+ return crypto_nhpoly1305_final_helper(desc, dst, nh_generic);
+}
+EXPORT_SYMBOL(crypto_nhpoly1305_final);
+
+static struct shash_alg nhpoly1305_alg = {
+ .base.cra_name = "nhpoly1305",
+ .base.cra_driver_name = "nhpoly1305-generic",
+ .base.cra_priority = 100,
+ .base.cra_ctxsize = sizeof(struct nhpoly1305_key),
+ .base.cra_module = THIS_MODULE,
+ .digestsize = POLY1305_DIGEST_SIZE,
+ .init = crypto_nhpoly1305_init,
+ .update = crypto_nhpoly1305_update,
+ .final = crypto_nhpoly1305_final,
+ .setkey = crypto_nhpoly1305_setkey,
+ .descsize = sizeof(struct nhpoly1305_state),
+};
+
+static int __init nhpoly1305_mod_init(void)
+{
+ return crypto_register_shash(&nhpoly1305_alg);
+}
+
+static void __exit nhpoly1305_mod_exit(void)
+{
+ crypto_unregister_shash(&nhpoly1305_alg);
+}
+
+module_init(nhpoly1305_mod_init);
+module_exit(nhpoly1305_mod_exit);
+
+MODULE_DESCRIPTION("NHPoly1305 ε-almost-∆-universal hash function");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Eric Biggers <ebiggers@google.com>");
+MODULE_ALIAS_CRYPTO("nhpoly1305");
+MODULE_ALIAS_CRYPTO("nhpoly1305-generic");
diff --git a/crypto/poly1305_generic.c b/crypto/poly1305_generic.c
index 47d3a6b..56b1668 100644
--- a/crypto/poly1305_generic.c
+++ b/crypto/poly1305_generic.c
@@ -13,75 +13,39 @@
#include <crypto/algapi.h>
#include <crypto/internal/hash.h>
-#include <crypto/poly1305.h>
+#include <crypto/internal/poly1305.h>
#include <linux/crypto.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <asm/unaligned.h>
-static inline u64 mlt(u64 a, u64 b)
-{
- return a * b;
-}
-
-static inline u32 sr(u64 v, u_char n)
-{
- return v >> n;
-}
-
-static inline u32 and(u32 v, u32 mask)
-{
- return v & mask;
-}
-
-int crypto_poly1305_init(struct shash_desc *desc)
+static int crypto_poly1305_init(struct shash_desc *desc)
{
struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
- memset(dctx->h, 0, sizeof(dctx->h));
+ poly1305_core_init(&dctx->h);
dctx->buflen = 0;
- dctx->rset = false;
+ dctx->rset = 0;
dctx->sset = false;
return 0;
}
-EXPORT_SYMBOL_GPL(crypto_poly1305_init);
-static void poly1305_setrkey(struct poly1305_desc_ctx *dctx, const u8 *key)
-{
- /* r &= 0xffffffc0ffffffc0ffffffc0fffffff */
- dctx->r[0] = (get_unaligned_le32(key + 0) >> 0) & 0x3ffffff;
- dctx->r[1] = (get_unaligned_le32(key + 3) >> 2) & 0x3ffff03;
- dctx->r[2] = (get_unaligned_le32(key + 6) >> 4) & 0x3ffc0ff;
- dctx->r[3] = (get_unaligned_le32(key + 9) >> 6) & 0x3f03fff;
- dctx->r[4] = (get_unaligned_le32(key + 12) >> 8) & 0x00fffff;
-}
-
-static void poly1305_setskey(struct poly1305_desc_ctx *dctx, const u8 *key)
-{
- dctx->s[0] = get_unaligned_le32(key + 0);
- dctx->s[1] = get_unaligned_le32(key + 4);
- dctx->s[2] = get_unaligned_le32(key + 8);
- dctx->s[3] = get_unaligned_le32(key + 12);
-}
-
-/*
- * Poly1305 requires a unique key for each tag, which implies that we can't set
- * it on the tfm that gets accessed by multiple users simultaneously. Instead we
- * expect the key as the first 32 bytes in the update() call.
- */
-unsigned int crypto_poly1305_setdesckey(struct poly1305_desc_ctx *dctx,
- const u8 *src, unsigned int srclen)
+static unsigned int crypto_poly1305_setdesckey(struct poly1305_desc_ctx *dctx,
+ const u8 *src, unsigned int srclen)
{
if (!dctx->sset) {
if (!dctx->rset && srclen >= POLY1305_BLOCK_SIZE) {
- poly1305_setrkey(dctx, src);
+ poly1305_core_setkey(&dctx->core_r, src);
src += POLY1305_BLOCK_SIZE;
srclen -= POLY1305_BLOCK_SIZE;
- dctx->rset = true;
+ dctx->rset = 2;
}
if (srclen >= POLY1305_BLOCK_SIZE) {
- poly1305_setskey(dctx, src);
+ dctx->s[0] = get_unaligned_le32(src + 0);
+ dctx->s[1] = get_unaligned_le32(src + 4);
+ dctx->s[2] = get_unaligned_le32(src + 8);
+ dctx->s[3] = get_unaligned_le32(src + 12);
src += POLY1305_BLOCK_SIZE;
srclen -= POLY1305_BLOCK_SIZE;
dctx->sset = true;
@@ -89,16 +53,10 @@ unsigned int crypto_poly1305_setdesckey(struct poly1305_desc_ctx *dctx,
}
return srclen;
}
-EXPORT_SYMBOL_GPL(crypto_poly1305_setdesckey);
-static unsigned int poly1305_blocks(struct poly1305_desc_ctx *dctx,
- const u8 *src, unsigned int srclen,
- u32 hibit)
+static void poly1305_blocks(struct poly1305_desc_ctx *dctx, const u8 *src,
+ unsigned int srclen)
{
- u32 r0, r1, r2, r3, r4;
- u32 s1, s2, s3, s4;
- u32 h0, h1, h2, h3, h4;
- u64 d0, d1, d2, d3, d4;
unsigned int datalen;
if (unlikely(!dctx->sset)) {
@@ -107,67 +65,12 @@ static unsigned int poly1305_blocks(struct poly1305_desc_ctx *dctx,
srclen = datalen;
}
- r0 = dctx->r[0];
- r1 = dctx->r[1];
- r2 = dctx->r[2];
- r3 = dctx->r[3];
- r4 = dctx->r[4];
-
- s1 = r1 * 5;
- s2 = r2 * 5;
- s3 = r3 * 5;
- s4 = r4 * 5;
-
- h0 = dctx->h[0];
- h1 = dctx->h[1];
- h2 = dctx->h[2];
- h3 = dctx->h[3];
- h4 = dctx->h[4];
-
- while (likely(srclen >= POLY1305_BLOCK_SIZE)) {
-
- /* h += m[i] */
- h0 += (get_unaligned_le32(src + 0) >> 0) & 0x3ffffff;
- h1 += (get_unaligned_le32(src + 3) >> 2) & 0x3ffffff;
- h2 += (get_unaligned_le32(src + 6) >> 4) & 0x3ffffff;
- h3 += (get_unaligned_le32(src + 9) >> 6) & 0x3ffffff;
- h4 += (get_unaligned_le32(src + 12) >> 8) | hibit;
-
- /* h *= r */
- d0 = mlt(h0, r0) + mlt(h1, s4) + mlt(h2, s3) +
- mlt(h3, s2) + mlt(h4, s1);
- d1 = mlt(h0, r1) + mlt(h1, r0) + mlt(h2, s4) +
- mlt(h3, s3) + mlt(h4, s2);
- d2 = mlt(h0, r2) + mlt(h1, r1) + mlt(h2, r0) +
- mlt(h3, s4) + mlt(h4, s3);
- d3 = mlt(h0, r3) + mlt(h1, r2) + mlt(h2, r1) +
- mlt(h3, r0) + mlt(h4, s4);
- d4 = mlt(h0, r4) + mlt(h1, r3) + mlt(h2, r2) +
- mlt(h3, r1) + mlt(h4, r0);
-
- /* (partial) h %= p */
- d1 += sr(d0, 26); h0 = and(d0, 0x3ffffff);
- d2 += sr(d1, 26); h1 = and(d1, 0x3ffffff);
- d3 += sr(d2, 26); h2 = and(d2, 0x3ffffff);
- d4 += sr(d3, 26); h3 = and(d3, 0x3ffffff);
- h0 += sr(d4, 26) * 5; h4 = and(d4, 0x3ffffff);
- h1 += h0 >> 26; h0 = h0 & 0x3ffffff;
-
- src += POLY1305_BLOCK_SIZE;
- srclen -= POLY1305_BLOCK_SIZE;
- }
-
- dctx->h[0] = h0;
- dctx->h[1] = h1;
- dctx->h[2] = h2;
- dctx->h[3] = h3;
- dctx->h[4] = h4;
-
- return srclen;
+ poly1305_core_blocks(&dctx->h, &dctx->core_r, src,
+ srclen / POLY1305_BLOCK_SIZE, 1);
}
-int crypto_poly1305_update(struct shash_desc *desc,
- const u8 *src, unsigned int srclen)
+static int crypto_poly1305_update(struct shash_desc *desc,
+ const u8 *src, unsigned int srclen)
{
struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
unsigned int bytes;
@@ -181,15 +84,15 @@ int crypto_poly1305_update(struct shash_desc *desc,
if (dctx->buflen == POLY1305_BLOCK_SIZE) {
poly1305_blocks(dctx, dctx->buf,
- POLY1305_BLOCK_SIZE, 1 << 24);
+ POLY1305_BLOCK_SIZE);
dctx->buflen = 0;
}
}
if (likely(srclen >= POLY1305_BLOCK_SIZE)) {
- bytes = poly1305_blocks(dctx, src, srclen, 1 << 24);
- src += srclen - bytes;
- srclen = bytes;
+ poly1305_blocks(dctx, src, srclen);
+ src += srclen - (srclen % POLY1305_BLOCK_SIZE);
+ srclen %= POLY1305_BLOCK_SIZE;
}
if (unlikely(srclen)) {
@@ -199,75 +102,17 @@ int crypto_poly1305_update(struct shash_desc *desc,
return 0;
}
-EXPORT_SYMBOL_GPL(crypto_poly1305_update);
-int crypto_poly1305_final(struct shash_desc *desc, u8 *dst)
+static int crypto_poly1305_final(struct shash_desc *desc, u8 *dst)
{
struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
- u32 h0, h1, h2, h3, h4;
- u32 g0, g1, g2, g3, g4;
- u32 mask;
- u64 f = 0;
if (unlikely(!dctx->sset))
return -ENOKEY;
- if (unlikely(dctx->buflen)) {
- dctx->buf[dctx->buflen++] = 1;
- memset(dctx->buf + dctx->buflen, 0,
- POLY1305_BLOCK_SIZE - dctx->buflen);
- poly1305_blocks(dctx, dctx->buf, POLY1305_BLOCK_SIZE, 0);
- }
-
- /* fully carry h */
- h0 = dctx->h[0];
- h1 = dctx->h[1];
- h2 = dctx->h[2];
- h3 = dctx->h[3];
- h4 = dctx->h[4];
-
- h2 += (h1 >> 26); h1 = h1 & 0x3ffffff;
- h3 += (h2 >> 26); h2 = h2 & 0x3ffffff;
- h4 += (h3 >> 26); h3 = h3 & 0x3ffffff;
- h0 += (h4 >> 26) * 5; h4 = h4 & 0x3ffffff;
- h1 += (h0 >> 26); h0 = h0 & 0x3ffffff;
-
- /* compute h + -p */
- g0 = h0 + 5;
- g1 = h1 + (g0 >> 26); g0 &= 0x3ffffff;
- g2 = h2 + (g1 >> 26); g1 &= 0x3ffffff;
- g3 = h3 + (g2 >> 26); g2 &= 0x3ffffff;
- g4 = h4 + (g3 >> 26) - (1 << 26); g3 &= 0x3ffffff;
-
- /* select h if h < p, or h + -p if h >= p */
- mask = (g4 >> ((sizeof(u32) * 8) - 1)) - 1;
- g0 &= mask;
- g1 &= mask;
- g2 &= mask;
- g3 &= mask;
- g4 &= mask;
- mask = ~mask;
- h0 = (h0 & mask) | g0;
- h1 = (h1 & mask) | g1;
- h2 = (h2 & mask) | g2;
- h3 = (h3 & mask) | g3;
- h4 = (h4 & mask) | g4;
-
- /* h = h % (2^128) */
- h0 = (h0 >> 0) | (h1 << 26);
- h1 = (h1 >> 6) | (h2 << 20);
- h2 = (h2 >> 12) | (h3 << 14);
- h3 = (h3 >> 18) | (h4 << 8);
-
- /* mac = (h + s) % (2^128) */
- f = (f >> 32) + h0 + dctx->s[0]; put_unaligned_le32(f, dst + 0);
- f = (f >> 32) + h1 + dctx->s[1]; put_unaligned_le32(f, dst + 4);
- f = (f >> 32) + h2 + dctx->s[2]; put_unaligned_le32(f, dst + 8);
- f = (f >> 32) + h3 + dctx->s[3]; put_unaligned_le32(f, dst + 12);
-
+ poly1305_final_generic(dctx, dst);
return 0;
}
-EXPORT_SYMBOL_GPL(crypto_poly1305_final);
static struct shash_alg poly1305_alg = {
.digestsize = POLY1305_DIGEST_SIZE,
diff --git a/crypto/skcipher.c b/crypto/skcipher.c
index a8750b4..61e562f 100644
--- a/crypto/skcipher.c
+++ b/crypto/skcipher.c
@@ -967,6 +967,30 @@ struct crypto_skcipher *crypto_alloc_skcipher(const char *alg_name,
}
EXPORT_SYMBOL_GPL(crypto_alloc_skcipher);
+struct crypto_sync_skcipher *crypto_alloc_sync_skcipher(
+ const char *alg_name, u32 type, u32 mask)
+{
+ struct crypto_skcipher *tfm;
+
+ /* Only sync algorithms allowed. */
+ mask |= CRYPTO_ALG_ASYNC;
+
+ tfm = crypto_alloc_tfm(alg_name, &crypto_skcipher_type2, type, mask);
+
+ /*
+ * Make sure we do not allocate something that might get used with
+ * an on-stack request: check the request size.
+ */
+ if (!IS_ERR(tfm) && WARN_ON(crypto_skcipher_reqsize(tfm) >
+ MAX_SYNC_SKCIPHER_REQSIZE)) {
+ crypto_free_skcipher(tfm);
+ return ERR_PTR(-EINVAL);
+ }
+
+ return (struct crypto_sync_skcipher *)tfm;
+}
+EXPORT_SYMBOL_GPL(crypto_alloc_sync_skcipher);
+
int crypto_has_skcipher2(const char *alg_name, u32 type, u32 mask)
{
return crypto_type_has_alg(alg_name, &crypto_skcipher_type2,
diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index bf797c6..f26ae5e 100644
--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -2290,6 +2290,17 @@ static int do_test(const char *alg, u32 type, u32 mask, int m, u32 num_mb)
num_mb);
break;
+ case 219:
+ test_cipher_speed("adiantum(xchacha12,aes)", ENCRYPT, sec, NULL,
+ 0, speed_template_32);
+ test_cipher_speed("adiantum(xchacha12,aes)", DECRYPT, sec, NULL,
+ 0, speed_template_32);
+ test_cipher_speed("adiantum(xchacha20,aes)", ENCRYPT, sec, NULL,
+ 0, speed_template_32);
+ test_cipher_speed("adiantum(xchacha20,aes)", DECRYPT, sec, NULL,
+ 0, speed_template_32);
+ break;
+
case 300:
if (alg) {
test_hash_speed(alg, sec, generic_hash_speed_template);
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 13cb2ea..ea35244 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -2410,6 +2410,18 @@ static int alg_test_null(const struct alg_test_desc *desc,
/* Please keep this list sorted by algorithm name. */
static const struct alg_test_desc alg_test_descs[] = {
{
+ .alg = "adiantum(xchacha12,aes)",
+ .test = alg_test_skcipher,
+ .suite = {
+ .cipher = __VECS(adiantum_xchacha12_aes_tv_template)
+ },
+ }, {
+ .alg = "adiantum(xchacha20,aes)",
+ .test = alg_test_skcipher,
+ .suite = {
+ .cipher = __VECS(adiantum_xchacha20_aes_tv_template)
+ },
+ }, {
.alg = "aegis128",
.test = alg_test_aead,
.suite = {
@@ -2605,6 +2617,30 @@ static const struct alg_test_desc alg_test_descs[] = {
.test = alg_test_null,
.fips_allowed = 1,
}, {
+ .alg = "blake2s-128",
+ .test = alg_test_hash,
+ .suite = {
+ .hash = __VECS(blakes2s_128_tv_template)
+ }
+ }, {
+ .alg = "blake2s-160",
+ .test = alg_test_hash,
+ .suite = {
+ .hash = __VECS(blakes2s_160_tv_template)
+ }
+ }, {
+ .alg = "blake2s-224",
+ .test = alg_test_hash,
+ .suite = {
+ .hash = __VECS(blakes2s_224_tv_template)
+ }
+ }, {
+ .alg = "blake2s-256",
+ .test = alg_test_hash,
+ .suite = {
+ .hash = __VECS(blakes2s_256_tv_template)
+ }
+ }, {
.alg = "cbc(aes)",
.test = alg_test_skcipher,
.fips_allowed = 1,
@@ -2810,6 +2846,12 @@ static const struct alg_test_desc alg_test_descs[] = {
.cipher = __VECS(cts_mode_tv_template)
}
}, {
+ .alg = "curve25519",
+ .test = alg_test_kpp,
+ .suite = {
+ .kpp = __VECS(curve25519_tv_template)
+ }
+ }, {
.alg = "deflate",
.test = alg_test_comp,
.fips_allowed = 1,
@@ -3293,6 +3335,12 @@ static const struct alg_test_desc alg_test_descs[] = {
}
}
}, {
+ .alg = "nhpoly1305",
+ .test = alg_test_hash,
+ .suite = {
+ .hash = __VECS(nhpoly1305_tv_template)
+ }
+ }, {
.alg = "ofb(aes)",
.test = alg_test_skcipher,
.fips_allowed = 1,
@@ -3546,6 +3594,18 @@ static const struct alg_test_desc alg_test_descs[] = {
.hash = __VECS(aes_xcbc128_tv_template)
}
}, {
+ .alg = "xchacha12",
+ .test = alg_test_skcipher,
+ .suite = {
+ .cipher = __VECS(xchacha12_tv_template)
+ },
+ }, {
+ .alg = "xchacha20",
+ .test = alg_test_skcipher,
+ .suite = {
+ .cipher = __VECS(xchacha20_tv_template)
+ },
+ }, {
.alg = "xts(aes)",
.test = alg_test_skcipher,
.fips_allowed = 1,
diff --git a/crypto/testmgr.h b/crypto/testmgr.h
index 74e1454..9466be3 100644
--- a/crypto/testmgr.h
+++ b/crypto/testmgr.h
@@ -29,7 +29,7 @@
#define MAX_DIGEST_SIZE 64
#define MAX_TAP 8
-#define MAX_KEYLEN 160
+#define MAX_KEYLEN 1088
#define MAX_IVLEN 32
struct hash_testvec {
@@ -37,10 +37,10 @@ struct hash_testvec {
const char *key;
const char *plaintext;
const char *digest;
- unsigned char tap[MAX_TAP];
+ unsigned short tap[MAX_TAP];
+ unsigned short np;
unsigned short psize;
- unsigned char np;
- unsigned char ksize;
+ unsigned short ksize;
};
/*
@@ -857,6 +857,1231 @@ static const struct kpp_testvec dh_tv_template[] = {
}
};
+static const struct kpp_testvec curve25519_tv_template[] = {
+{
+ .secret = (u8[32]){ 0x77, 0x07, 0x6d, 0x0a, 0x73, 0x18, 0xa5, 0x7d,
+ 0x3c, 0x16, 0xc1, 0x72, 0x51, 0xb2, 0x66, 0x45,
+ 0xdf, 0x4c, 0x2f, 0x87, 0xeb, 0xc0, 0x99, 0x2a,
+ 0xb1, 0x77, 0xfb, 0xa5, 0x1d, 0xb9, 0x2c, 0x2a },
+ .b_public = (u8[32]){ 0xde, 0x9e, 0xdb, 0x7d, 0x7b, 0x7d, 0xc1, 0xb4,
+ 0xd3, 0x5b, 0x61, 0xc2, 0xec, 0xe4, 0x35, 0x37,
+ 0x3f, 0x83, 0x43, 0xc8, 0x5b, 0x78, 0x67, 0x4d,
+ 0xad, 0xfc, 0x7e, 0x14, 0x6f, 0x88, 0x2b, 0x4f },
+ .expected_ss = (u8[32]){ 0x4a, 0x5d, 0x9d, 0x5b, 0xa4, 0xce, 0x2d, 0xe1,
+ 0x72, 0x8e, 0x3b, 0xf4, 0x80, 0x35, 0x0f, 0x25,
+ 0xe0, 0x7e, 0x21, 0xc9, 0x47, 0xd1, 0x9e, 0x33,
+ 0x76, 0xf0, 0x9b, 0x3c, 0x1e, 0x16, 0x17, 0x42 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+{
+ .secret = (u8[32]){ 0x5d, 0xab, 0x08, 0x7e, 0x62, 0x4a, 0x8a, 0x4b,
+ 0x79, 0xe1, 0x7f, 0x8b, 0x83, 0x80, 0x0e, 0xe6,
+ 0x6f, 0x3b, 0xb1, 0x29, 0x26, 0x18, 0xb6, 0xfd,
+ 0x1c, 0x2f, 0x8b, 0x27, 0xff, 0x88, 0xe0, 0xeb },
+ .b_public = (u8[32]){ 0x85, 0x20, 0xf0, 0x09, 0x89, 0x30, 0xa7, 0x54,
+ 0x74, 0x8b, 0x7d, 0xdc, 0xb4, 0x3e, 0xf7, 0x5a,
+ 0x0d, 0xbf, 0x3a, 0x0d, 0x26, 0x38, 0x1a, 0xf4,
+ 0xeb, 0xa4, 0xa9, 0x8e, 0xaa, 0x9b, 0x4e, 0x6a },
+ .expected_ss = (u8[32]){ 0x4a, 0x5d, 0x9d, 0x5b, 0xa4, 0xce, 0x2d, 0xe1,
+ 0x72, 0x8e, 0x3b, 0xf4, 0x80, 0x35, 0x0f, 0x25,
+ 0xe0, 0x7e, 0x21, 0xc9, 0x47, 0xd1, 0x9e, 0x33,
+ 0x76, 0xf0, 0x9b, 0x3c, 0x1e, 0x16, 0x17, 0x42 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+{
+ .secret = (u8[32]){ 1 },
+ .b_public = (u8[32]){ 0x25, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .expected_ss = (u8[32]){ 0x3c, 0x77, 0x77, 0xca, 0xf9, 0x97, 0xb2, 0x64,
+ 0x41, 0x60, 0x77, 0x66, 0x5b, 0x4e, 0x22, 0x9d,
+ 0x0b, 0x95, 0x48, 0xdc, 0x0c, 0xd8, 0x19, 0x98,
+ 0xdd, 0xcd, 0xc5, 0xc8, 0x53, 0x3c, 0x79, 0x7f },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+{
+ .secret = (u8[32]){ 1 },
+ .b_public = (u8[32]){ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
+ .expected_ss = (u8[32]){ 0xb3, 0x2d, 0x13, 0x62, 0xc2, 0x48, 0xd6, 0x2f,
+ 0xe6, 0x26, 0x19, 0xcf, 0xf0, 0x4d, 0xd4, 0x3d,
+ 0xb7, 0x3f, 0xfc, 0x1b, 0x63, 0x08, 0xed, 0xe3,
+ 0x0b, 0x78, 0xd8, 0x73, 0x80, 0xf1, 0xe8, 0x34 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+{
+ .secret = (u8[32]){ 0xa5, 0x46, 0xe3, 0x6b, 0xf0, 0x52, 0x7c, 0x9d,
+ 0x3b, 0x16, 0x15, 0x4b, 0x82, 0x46, 0x5e, 0xdd,
+ 0x62, 0x14, 0x4c, 0x0a, 0xc1, 0xfc, 0x5a, 0x18,
+ 0x50, 0x6a, 0x22, 0x44, 0xba, 0x44, 0x9a, 0xc4 },
+ .b_public = (u8[32]){ 0xe6, 0xdb, 0x68, 0x67, 0x58, 0x30, 0x30, 0xdb,
+ 0x35, 0x94, 0xc1, 0xa4, 0x24, 0xb1, 0x5f, 0x7c,
+ 0x72, 0x66, 0x24, 0xec, 0x26, 0xb3, 0x35, 0x3b,
+ 0x10, 0xa9, 0x03, 0xa6, 0xd0, 0xab, 0x1c, 0x4c },
+ .expected_ss = (u8[32]){ 0xc3, 0xda, 0x55, 0x37, 0x9d, 0xe9, 0xc6, 0x90,
+ 0x8e, 0x94, 0xea, 0x4d, 0xf2, 0x8d, 0x08, 0x4f,
+ 0x32, 0xec, 0xcf, 0x03, 0x49, 0x1c, 0x71, 0xf7,
+ 0x54, 0xb4, 0x07, 0x55, 0x77, 0xa2, 0x85, 0x52 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+{
+ .secret = (u8[32]){ 0xff, 0xff, 0xff, 0xff, 0x0a, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
+ .b_public = (u8[32]){ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0x0a, 0x00, 0xfb, 0x9f },
+ .expected_ss = (u8[32]){ 0x77, 0x52, 0xb6, 0x18, 0xc1, 0x2d, 0x48, 0xd2,
+ 0xc6, 0x93, 0x46, 0x83, 0x81, 0x7c, 0xc6, 0x57,
+ 0xf3, 0x31, 0x03, 0x19, 0x49, 0x48, 0x20, 0x05,
+ 0x42, 0x2b, 0x4e, 0xae, 0x8d, 0x1d, 0x43, 0x23 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+{
+ .secret = (u8[32]){ 0x8e, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .b_public = (u8[32]){ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8e, 0x06 },
+ .expected_ss = (u8[32]){ 0x5a, 0xdf, 0xaa, 0x25, 0x86, 0x8e, 0x32, 0x3d,
+ 0xae, 0x49, 0x62, 0xc1, 0x01, 0x5c, 0xb3, 0x12,
+ 0xe1, 0xc5, 0xc7, 0x9e, 0x95, 0x3f, 0x03, 0x99,
+ 0xb0, 0xba, 0x16, 0x22, 0xf3, 0xb6, 0xf7, 0x0c },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - normal case */
+{
+ .secret = (u8[32]){ 0x48, 0x52, 0x83, 0x4d, 0x9d, 0x6b, 0x77, 0xda,
+ 0xde, 0xab, 0xaa, 0xf2, 0xe1, 0x1d, 0xca, 0x66,
+ 0xd1, 0x9f, 0xe7, 0x49, 0x93, 0xa7, 0xbe, 0xc3,
+ 0x6c, 0x6e, 0x16, 0xa0, 0x98, 0x3f, 0xea, 0xba },
+ .b_public = (u8[32]){ 0x9c, 0x64, 0x7d, 0x9a, 0xe5, 0x89, 0xb9, 0xf5,
+ 0x8f, 0xdc, 0x3c, 0xa4, 0x94, 0x7e, 0xfb, 0xc9,
+ 0x15, 0xc4, 0xb2, 0xe0, 0x8e, 0x74, 0x4a, 0x0e,
+ 0xdf, 0x46, 0x9d, 0xac, 0x59, 0xc8, 0xf8, 0x5a },
+ .expected_ss = (u8[32]){ 0x87, 0xb7, 0xf2, 0x12, 0xb6, 0x27, 0xf7, 0xa5,
+ 0x4c, 0xa5, 0xe0, 0xbc, 0xda, 0xdd, 0xd5, 0x38,
+ 0x9d, 0x9d, 0xe6, 0x15, 0x6c, 0xdb, 0xcf, 0x8e,
+ 0xbe, 0x14, 0xff, 0xbc, 0xfb, 0x43, 0x65, 0x51 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - public key on twist */
+{
+ .secret = (u8[32]){ 0x58, 0x8c, 0x06, 0x1a, 0x50, 0x80, 0x4a, 0xc4,
+ 0x88, 0xad, 0x77, 0x4a, 0xc7, 0x16, 0xc3, 0xf5,
+ 0xba, 0x71, 0x4b, 0x27, 0x12, 0xe0, 0x48, 0x49,
+ 0x13, 0x79, 0xa5, 0x00, 0x21, 0x19, 0x98, 0xa8 },
+ .b_public = (u8[32]){ 0x63, 0xaa, 0x40, 0xc6, 0xe3, 0x83, 0x46, 0xc5,
+ 0xca, 0xf2, 0x3a, 0x6d, 0xf0, 0xa5, 0xe6, 0xc8,
+ 0x08, 0x89, 0xa0, 0x86, 0x47, 0xe5, 0x51, 0xb3,
+ 0x56, 0x34, 0x49, 0xbe, 0xfc, 0xfc, 0x97, 0x33 },
+ .expected_ss = (u8[32]){ 0xb1, 0xa7, 0x07, 0x51, 0x94, 0x95, 0xff, 0xff,
+ 0xb2, 0x98, 0xff, 0x94, 0x17, 0x16, 0xb0, 0x6d,
+ 0xfa, 0xb8, 0x7c, 0xf8, 0xd9, 0x11, 0x23, 0xfe,
+ 0x2b, 0xe9, 0xa2, 0x33, 0xdd, 0xa2, 0x22, 0x12 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - public key on twist */
+{
+ .secret = (u8[32]){ 0xb0, 0x5b, 0xfd, 0x32, 0xe5, 0x53, 0x25, 0xd9,
+ 0xfd, 0x64, 0x8c, 0xb3, 0x02, 0x84, 0x80, 0x39,
+ 0x00, 0x0b, 0x39, 0x0e, 0x44, 0xd5, 0x21, 0xe5,
+ 0x8a, 0xab, 0x3b, 0x29, 0xa6, 0x96, 0x0b, 0xa8 },
+ .b_public = (u8[32]){ 0x0f, 0x83, 0xc3, 0x6f, 0xde, 0xd9, 0xd3, 0x2f,
+ 0xad, 0xf4, 0xef, 0xa3, 0xae, 0x93, 0xa9, 0x0b,
+ 0xb5, 0xcf, 0xa6, 0x68, 0x93, 0xbc, 0x41, 0x2c,
+ 0x43, 0xfa, 0x72, 0x87, 0xdb, 0xb9, 0x97, 0x79 },
+ .expected_ss = (u8[32]){ 0x67, 0xdd, 0x4a, 0x6e, 0x16, 0x55, 0x33, 0x53,
+ 0x4c, 0x0e, 0x3f, 0x17, 0x2e, 0x4a, 0xb8, 0x57,
+ 0x6b, 0xca, 0x92, 0x3a, 0x5f, 0x07, 0xb2, 0xc0,
+ 0x69, 0xb4, 0xc3, 0x10, 0xff, 0x2e, 0x93, 0x5b },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - public key on twist */
+{
+ .secret = (u8[32]){ 0x70, 0xe3, 0x4b, 0xcb, 0xe1, 0xf4, 0x7f, 0xbc,
+ 0x0f, 0xdd, 0xfd, 0x7c, 0x1e, 0x1a, 0xa5, 0x3d,
+ 0x57, 0xbf, 0xe0, 0xf6, 0x6d, 0x24, 0x30, 0x67,
+ 0xb4, 0x24, 0xbb, 0x62, 0x10, 0xbe, 0xd1, 0x9c },
+ .b_public = (u8[32]){ 0x0b, 0x82, 0x11, 0xa2, 0xb6, 0x04, 0x90, 0x97,
+ 0xf6, 0x87, 0x1c, 0x6c, 0x05, 0x2d, 0x3c, 0x5f,
+ 0xc1, 0xba, 0x17, 0xda, 0x9e, 0x32, 0xae, 0x45,
+ 0x84, 0x03, 0xb0, 0x5b, 0xb2, 0x83, 0x09, 0x2a },
+ .expected_ss = (u8[32]){ 0x4a, 0x06, 0x38, 0xcf, 0xaa, 0x9e, 0xf1, 0x93,
+ 0x3b, 0x47, 0xf8, 0x93, 0x92, 0x96, 0xa6, 0xb2,
+ 0x5b, 0xe5, 0x41, 0xef, 0x7f, 0x70, 0xe8, 0x44,
+ 0xc0, 0xbc, 0xc0, 0x0b, 0x13, 0x4d, 0xe6, 0x4a },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - public key on twist */
+{
+ .secret = (u8[32]){ 0x68, 0xc1, 0xf3, 0xa6, 0x53, 0xa4, 0xcd, 0xb1,
+ 0xd3, 0x7b, 0xba, 0x94, 0x73, 0x8f, 0x8b, 0x95,
+ 0x7a, 0x57, 0xbe, 0xb2, 0x4d, 0x64, 0x6e, 0x99,
+ 0x4d, 0xc2, 0x9a, 0x27, 0x6a, 0xad, 0x45, 0x8d },
+ .b_public = (u8[32]){ 0x34, 0x3a, 0xc2, 0x0a, 0x3b, 0x9c, 0x6a, 0x27,
+ 0xb1, 0x00, 0x81, 0x76, 0x50, 0x9a, 0xd3, 0x07,
+ 0x35, 0x85, 0x6e, 0xc1, 0xc8, 0xd8, 0xfc, 0xae,
+ 0x13, 0x91, 0x2d, 0x08, 0xd1, 0x52, 0xf4, 0x6c },
+ .expected_ss = (u8[32]){ 0x39, 0x94, 0x91, 0xfc, 0xe8, 0xdf, 0xab, 0x73,
+ 0xb4, 0xf9, 0xf6, 0x11, 0xde, 0x8e, 0xa0, 0xb2,
+ 0x7b, 0x28, 0xf8, 0x59, 0x94, 0x25, 0x0b, 0x0f,
+ 0x47, 0x5d, 0x58, 0x5d, 0x04, 0x2a, 0xc2, 0x07 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - public key on twist */
+{
+ .secret = (u8[32]){ 0xd8, 0x77, 0xb2, 0x6d, 0x06, 0xdf, 0xf9, 0xd9,
+ 0xf7, 0xfd, 0x4c, 0x5b, 0x37, 0x69, 0xf8, 0xcd,
+ 0xd5, 0xb3, 0x05, 0x16, 0xa5, 0xab, 0x80, 0x6b,
+ 0xe3, 0x24, 0xff, 0x3e, 0xb6, 0x9e, 0xa0, 0xb2 },
+ .b_public = (u8[32]){ 0xfa, 0x69, 0x5f, 0xc7, 0xbe, 0x8d, 0x1b, 0xe5,
+ 0xbf, 0x70, 0x48, 0x98, 0xf3, 0x88, 0xc4, 0x52,
+ 0xba, 0xfd, 0xd3, 0xb8, 0xea, 0xe8, 0x05, 0xf8,
+ 0x68, 0x1a, 0x8d, 0x15, 0xc2, 0xd4, 0xe1, 0x42 },
+ .expected_ss = (u8[32]){ 0x2c, 0x4f, 0xe1, 0x1d, 0x49, 0x0a, 0x53, 0x86,
+ 0x17, 0x76, 0xb1, 0x3b, 0x43, 0x54, 0xab, 0xd4,
+ 0xcf, 0x5a, 0x97, 0x69, 0x9d, 0xb6, 0xe6, 0xc6,
+ 0x8c, 0x16, 0x26, 0xd0, 0x76, 0x62, 0xf7, 0x58 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - edge case on twist */
+{
+ .secret = (u8[32]){ 0x38, 0xdd, 0xe9, 0xf3, 0xe7, 0xb7, 0x99, 0x04,
+ 0x5f, 0x9a, 0xc3, 0x79, 0x3d, 0x4a, 0x92, 0x77,
+ 0xda, 0xde, 0xad, 0xc4, 0x1b, 0xec, 0x02, 0x90,
+ 0xf8, 0x1f, 0x74, 0x4f, 0x73, 0x77, 0x5f, 0x84 },
+ .b_public = (u8[32]){ 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .expected_ss = (u8[32]){ 0x9a, 0x2c, 0xfe, 0x84, 0xff, 0x9c, 0x4a, 0x97,
+ 0x39, 0x62, 0x5c, 0xae, 0x4a, 0x3b, 0x82, 0xa9,
+ 0x06, 0x87, 0x7a, 0x44, 0x19, 0x46, 0xf8, 0xd7,
+ 0xb3, 0xd7, 0x95, 0xfe, 0x8f, 0x5d, 0x16, 0x39 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - edge case on twist */
+{
+ .secret = (u8[32]){ 0x98, 0x57, 0xa9, 0x14, 0xe3, 0xc2, 0x90, 0x36,
+ 0xfd, 0x9a, 0x44, 0x2b, 0xa5, 0x26, 0xb5, 0xcd,
+ 0xcd, 0xf2, 0x82, 0x16, 0x15, 0x3e, 0x63, 0x6c,
+ 0x10, 0x67, 0x7a, 0xca, 0xb6, 0xbd, 0x6a, 0xa5 },
+ .b_public = (u8[32]){ 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .expected_ss = (u8[32]){ 0x4d, 0xa4, 0xe0, 0xaa, 0x07, 0x2c, 0x23, 0x2e,
+ 0xe2, 0xf0, 0xfa, 0x4e, 0x51, 0x9a, 0xe5, 0x0b,
+ 0x52, 0xc1, 0xed, 0xd0, 0x8a, 0x53, 0x4d, 0x4e,
+ 0xf3, 0x46, 0xc2, 0xe1, 0x06, 0xd2, 0x1d, 0x60 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - edge case on twist */
+{
+ .secret = (u8[32]){ 0x48, 0xe2, 0x13, 0x0d, 0x72, 0x33, 0x05, 0xed,
+ 0x05, 0xe6, 0xe5, 0x89, 0x4d, 0x39, 0x8a, 0x5e,
+ 0x33, 0x36, 0x7a, 0x8c, 0x6a, 0xac, 0x8f, 0xcd,
+ 0xf0, 0xa8, 0x8e, 0x4b, 0x42, 0x82, 0x0d, 0xb7 },
+ .b_public = (u8[32]){ 0xff, 0xff, 0xff, 0x03, 0x00, 0x00, 0xf8, 0xff,
+ 0xff, 0x1f, 0x00, 0x00, 0xc0, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0xfe, 0xff, 0xff, 0x07, 0x00,
+ 0x00, 0xf0, 0xff, 0xff, 0x3f, 0x00, 0x00, 0x00 },
+ .expected_ss = (u8[32]){ 0x9e, 0xd1, 0x0c, 0x53, 0x74, 0x7f, 0x64, 0x7f,
+ 0x82, 0xf4, 0x51, 0x25, 0xd3, 0xde, 0x15, 0xa1,
+ 0xe6, 0xb8, 0x24, 0x49, 0x6a, 0xb4, 0x04, 0x10,
+ 0xff, 0xcc, 0x3c, 0xfe, 0x95, 0x76, 0x0f, 0x3b },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - edge case on twist */
+{
+ .secret = (u8[32]){ 0x28, 0xf4, 0x10, 0x11, 0x69, 0x18, 0x51, 0xb3,
+ 0xa6, 0x2b, 0x64, 0x15, 0x53, 0xb3, 0x0d, 0x0d,
+ 0xfd, 0xdc, 0xb8, 0xff, 0xfc, 0xf5, 0x37, 0x00,
+ 0xa7, 0xbe, 0x2f, 0x6a, 0x87, 0x2e, 0x9f, 0xb0 },
+ .b_public = (u8[32]){ 0x00, 0x00, 0x00, 0xfc, 0xff, 0xff, 0x07, 0x00,
+ 0x00, 0xe0, 0xff, 0xff, 0x3f, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0x01, 0x00, 0x00, 0xf8, 0xff,
+ 0xff, 0x0f, 0x00, 0x00, 0xc0, 0xff, 0xff, 0x7f },
+ .expected_ss = (u8[32]){ 0xcf, 0x72, 0xb4, 0xaa, 0x6a, 0xa1, 0xc9, 0xf8,
+ 0x94, 0xf4, 0x16, 0x5b, 0x86, 0x10, 0x9a, 0xa4,
+ 0x68, 0x51, 0x76, 0x48, 0xe1, 0xf0, 0xcc, 0x70,
+ 0xe1, 0xab, 0x08, 0x46, 0x01, 0x76, 0x50, 0x6b },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - edge case on twist */
+{
+ .secret = (u8[32]){ 0x18, 0xa9, 0x3b, 0x64, 0x99, 0xb9, 0xf6, 0xb3,
+ 0x22, 0x5c, 0xa0, 0x2f, 0xef, 0x41, 0x0e, 0x0a,
+ 0xde, 0xc2, 0x35, 0x32, 0x32, 0x1d, 0x2d, 0x8e,
+ 0xf1, 0xa6, 0xd6, 0x02, 0xa8, 0xc6, 0x5b, 0x83 },
+ .b_public = (u8[32]){ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0x7f },
+ .expected_ss = (u8[32]){ 0x5d, 0x50, 0xb6, 0x28, 0x36, 0xbb, 0x69, 0x57,
+ 0x94, 0x10, 0x38, 0x6c, 0xf7, 0xbb, 0x81, 0x1c,
+ 0x14, 0xbf, 0x85, 0xb1, 0xc7, 0xb1, 0x7e, 0x59,
+ 0x24, 0xc7, 0xff, 0xea, 0x91, 0xef, 0x9e, 0x12 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - edge case on twist */
+{
+ .secret = (u8[32]){ 0xc0, 0x1d, 0x13, 0x05, 0xa1, 0x33, 0x8a, 0x1f,
+ 0xca, 0xc2, 0xba, 0x7e, 0x2e, 0x03, 0x2b, 0x42,
+ 0x7e, 0x0b, 0x04, 0x90, 0x31, 0x65, 0xac, 0xa9,
+ 0x57, 0xd8, 0xd0, 0x55, 0x3d, 0x87, 0x17, 0xb0 },
+ .b_public = (u8[32]){ 0xea, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
+ .expected_ss = (u8[32]){ 0x19, 0x23, 0x0e, 0xb1, 0x48, 0xd5, 0xd6, 0x7c,
+ 0x3c, 0x22, 0xab, 0x1d, 0xae, 0xff, 0x80, 0xa5,
+ 0x7e, 0xae, 0x42, 0x65, 0xce, 0x28, 0x72, 0x65,
+ 0x7b, 0x2c, 0x80, 0x99, 0xfc, 0x69, 0x8e, 0x50 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - edge case for public key */
+{
+ .secret = (u8[32]){ 0x38, 0x6f, 0x7f, 0x16, 0xc5, 0x07, 0x31, 0xd6,
+ 0x4f, 0x82, 0xe6, 0xa1, 0x70, 0xb1, 0x42, 0xa4,
+ 0xe3, 0x4f, 0x31, 0xfd, 0x77, 0x68, 0xfc, 0xb8,
+ 0x90, 0x29, 0x25, 0xe7, 0xd1, 0xe2, 0x1a, 0xbe },
+ .b_public = (u8[32]){ 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .expected_ss = (u8[32]){ 0x0f, 0xca, 0xb5, 0xd8, 0x42, 0xa0, 0x78, 0xd7,
+ 0xa7, 0x1f, 0xc5, 0x9b, 0x57, 0xbf, 0xb4, 0xca,
+ 0x0b, 0xe6, 0x87, 0x3b, 0x49, 0xdc, 0xdb, 0x9f,
+ 0x44, 0xe1, 0x4a, 0xe8, 0xfb, 0xdf, 0xa5, 0x42 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - edge case for public key */
+{
+ .secret = (u8[32]){ 0xe0, 0x23, 0xa2, 0x89, 0xbd, 0x5e, 0x90, 0xfa,
+ 0x28, 0x04, 0xdd, 0xc0, 0x19, 0xa0, 0x5e, 0xf3,
+ 0xe7, 0x9d, 0x43, 0x4b, 0xb6, 0xea, 0x2f, 0x52,
+ 0x2e, 0xcb, 0x64, 0x3a, 0x75, 0x29, 0x6e, 0x95 },
+ .b_public = (u8[32]){ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 },
+ .expected_ss = (u8[32]){ 0x54, 0xce, 0x8f, 0x22, 0x75, 0xc0, 0x77, 0xe3,
+ 0xb1, 0x30, 0x6a, 0x39, 0x39, 0xc5, 0xe0, 0x3e,
+ 0xef, 0x6b, 0xbb, 0x88, 0x06, 0x05, 0x44, 0x75,
+ 0x8d, 0x9f, 0xef, 0x59, 0xb0, 0xbc, 0x3e, 0x4f },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - edge case for public key */
+{
+ .secret = (u8[32]){ 0x68, 0xf0, 0x10, 0xd6, 0x2e, 0xe8, 0xd9, 0x26,
+ 0x05, 0x3a, 0x36, 0x1c, 0x3a, 0x75, 0xc6, 0xea,
+ 0x4e, 0xbd, 0xc8, 0x60, 0x6a, 0xb2, 0x85, 0x00,
+ 0x3a, 0x6f, 0x8f, 0x40, 0x76, 0xb0, 0x1e, 0x83 },
+ .b_public = (u8[32]){ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x03 },
+ .expected_ss = (u8[32]){ 0xf1, 0x36, 0x77, 0x5c, 0x5b, 0xeb, 0x0a, 0xf8,
+ 0x11, 0x0a, 0xf1, 0x0b, 0x20, 0x37, 0x23, 0x32,
+ 0x04, 0x3c, 0xab, 0x75, 0x24, 0x19, 0x67, 0x87,
+ 0x75, 0xa2, 0x23, 0xdf, 0x57, 0xc9, 0xd3, 0x0d },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - edge case for public key */
+{
+ .secret = (u8[32]){ 0x58, 0xeb, 0xcb, 0x35, 0xb0, 0xf8, 0x84, 0x5c,
+ 0xaf, 0x1e, 0xc6, 0x30, 0xf9, 0x65, 0x76, 0xb6,
+ 0x2c, 0x4b, 0x7b, 0x6c, 0x36, 0xb2, 0x9d, 0xeb,
+ 0x2c, 0xb0, 0x08, 0x46, 0x51, 0x75, 0x5c, 0x96 },
+ .b_public = (u8[32]){ 0xff, 0xff, 0xff, 0xfb, 0xff, 0xff, 0xfb, 0xff,
+ 0xff, 0xdf, 0xff, 0xff, 0xdf, 0xff, 0xff, 0xff,
+ 0xfe, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xf7, 0xff,
+ 0xff, 0xf7, 0xff, 0xff, 0xbf, 0xff, 0xff, 0x3f },
+ .expected_ss = (u8[32]){ 0xbf, 0x9a, 0xff, 0xd0, 0x6b, 0x84, 0x40, 0x85,
+ 0x58, 0x64, 0x60, 0x96, 0x2e, 0xf2, 0x14, 0x6f,
+ 0xf3, 0xd4, 0x53, 0x3d, 0x94, 0x44, 0xaa, 0xb0,
+ 0x06, 0xeb, 0x88, 0xcc, 0x30, 0x54, 0x40, 0x7d },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - edge case for public key */
+{
+ .secret = (u8[32]){ 0x18, 0x8c, 0x4b, 0xc5, 0xb9, 0xc4, 0x4b, 0x38,
+ 0xbb, 0x65, 0x8b, 0x9b, 0x2a, 0xe8, 0x2d, 0x5b,
+ 0x01, 0x01, 0x5e, 0x09, 0x31, 0x84, 0xb1, 0x7c,
+ 0xb7, 0x86, 0x35, 0x03, 0xa7, 0x83, 0xe1, 0xbb },
+ .b_public = (u8[32]){ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x3f },
+ .expected_ss = (u8[32]){ 0xd4, 0x80, 0xde, 0x04, 0xf6, 0x99, 0xcb, 0x3b,
+ 0xe0, 0x68, 0x4a, 0x9c, 0xc2, 0xe3, 0x12, 0x81,
+ 0xea, 0x0b, 0xc5, 0xa9, 0xdc, 0xc1, 0x57, 0xd3,
+ 0xd2, 0x01, 0x58, 0xd4, 0x6c, 0xa5, 0x24, 0x6d },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - edge case for public key */
+{
+ .secret = (u8[32]){ 0xe0, 0x6c, 0x11, 0xbb, 0x2e, 0x13, 0xce, 0x3d,
+ 0xc7, 0x67, 0x3f, 0x67, 0xf5, 0x48, 0x22, 0x42,
+ 0x90, 0x94, 0x23, 0xa9, 0xae, 0x95, 0xee, 0x98,
+ 0x6a, 0x98, 0x8d, 0x98, 0xfa, 0xee, 0x23, 0xa2 },
+ .b_public = (u8[32]){ 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0x7f },
+ .expected_ss = (u8[32]){ 0x4c, 0x44, 0x01, 0xcc, 0xe6, 0xb5, 0x1e, 0x4c,
+ 0xb1, 0x8f, 0x27, 0x90, 0x24, 0x6c, 0x9b, 0xf9,
+ 0x14, 0xdb, 0x66, 0x77, 0x50, 0xa1, 0xcb, 0x89,
+ 0x06, 0x90, 0x92, 0xaf, 0x07, 0x29, 0x22, 0x76 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - edge case for public key */
+{
+ .secret = (u8[32]){ 0xc0, 0x65, 0x8c, 0x46, 0xdd, 0xe1, 0x81, 0x29,
+ 0x29, 0x38, 0x77, 0x53, 0x5b, 0x11, 0x62, 0xb6,
+ 0xf9, 0xf5, 0x41, 0x4a, 0x23, 0xcf, 0x4d, 0x2c,
+ 0xbc, 0x14, 0x0a, 0x4d, 0x99, 0xda, 0x2b, 0x8f },
+ .b_public = (u8[32]){ 0xeb, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
+ .expected_ss = (u8[32]){ 0x57, 0x8b, 0xa8, 0xcc, 0x2d, 0xbd, 0xc5, 0x75,
+ 0xaf, 0xcf, 0x9d, 0xf2, 0xb3, 0xee, 0x61, 0x89,
+ 0xf5, 0x33, 0x7d, 0x68, 0x54, 0xc7, 0x9b, 0x4c,
+ 0xe1, 0x65, 0xea, 0x12, 0x29, 0x3b, 0x3a, 0x0f },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - public key >= p */
+{
+ .secret = (u8[32]){ 0xf0, 0x1e, 0x48, 0xda, 0xfa, 0xc9, 0xd7, 0xbc,
+ 0xf5, 0x89, 0xcb, 0xc3, 0x82, 0xc8, 0x78, 0xd1,
+ 0x8b, 0xda, 0x35, 0x50, 0x58, 0x9f, 0xfb, 0x5d,
+ 0x50, 0xb5, 0x23, 0xbe, 0xbe, 0x32, 0x9d, 0xae },
+ .b_public = (u8[32]){ 0xef, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
+ .expected_ss = (u8[32]){ 0xbd, 0x36, 0xa0, 0x79, 0x0e, 0xb8, 0x83, 0x09,
+ 0x8c, 0x98, 0x8b, 0x21, 0x78, 0x67, 0x73, 0xde,
+ 0x0b, 0x3a, 0x4d, 0xf1, 0x62, 0x28, 0x2c, 0xf1,
+ 0x10, 0xde, 0x18, 0xdd, 0x48, 0x4c, 0xe7, 0x4b },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - public key >= p */
+{
+ .secret = (u8[32]){ 0x28, 0x87, 0x96, 0xbc, 0x5a, 0xff, 0x4b, 0x81,
+ 0xa3, 0x75, 0x01, 0x75, 0x7b, 0xc0, 0x75, 0x3a,
+ 0x3c, 0x21, 0x96, 0x47, 0x90, 0xd3, 0x86, 0x99,
+ 0x30, 0x8d, 0xeb, 0xc1, 0x7a, 0x6e, 0xaf, 0x8d },
+ .b_public = (u8[32]){ 0xf0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
+ .expected_ss = (u8[32]){ 0xb4, 0xe0, 0xdd, 0x76, 0xda, 0x7b, 0x07, 0x17,
+ 0x28, 0xb6, 0x1f, 0x85, 0x67, 0x71, 0xaa, 0x35,
+ 0x6e, 0x57, 0xed, 0xa7, 0x8a, 0x5b, 0x16, 0x55,
+ 0xcc, 0x38, 0x20, 0xfb, 0x5f, 0x85, 0x4c, 0x5c },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - public key >= p */
+{
+ .secret = (u8[32]){ 0x98, 0xdf, 0x84, 0x5f, 0x66, 0x51, 0xbf, 0x11,
+ 0x38, 0x22, 0x1f, 0x11, 0x90, 0x41, 0xf7, 0x2b,
+ 0x6d, 0xbc, 0x3c, 0x4a, 0xce, 0x71, 0x43, 0xd9,
+ 0x9f, 0xd5, 0x5a, 0xd8, 0x67, 0x48, 0x0d, 0xa8 },
+ .b_public = (u8[32]){ 0xf1, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
+ .expected_ss = (u8[32]){ 0x6f, 0xdf, 0x6c, 0x37, 0x61, 0x1d, 0xbd, 0x53,
+ 0x04, 0xdc, 0x0f, 0x2e, 0xb7, 0xc9, 0x51, 0x7e,
+ 0xb3, 0xc5, 0x0e, 0x12, 0xfd, 0x05, 0x0a, 0xc6,
+ 0xde, 0xc2, 0x70, 0x71, 0xd4, 0xbf, 0xc0, 0x34 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - public key >= p */
+{
+ .secret = (u8[32]){ 0xf0, 0x94, 0x98, 0xe4, 0x6f, 0x02, 0xf8, 0x78,
+ 0x82, 0x9e, 0x78, 0xb8, 0x03, 0xd3, 0x16, 0xa2,
+ 0xed, 0x69, 0x5d, 0x04, 0x98, 0xa0, 0x8a, 0xbd,
+ 0xf8, 0x27, 0x69, 0x30, 0xe2, 0x4e, 0xdc, 0xb0 },
+ .b_public = (u8[32]){ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
+ .expected_ss = (u8[32]){ 0x4c, 0x8f, 0xc4, 0xb1, 0xc6, 0xab, 0x88, 0xfb,
+ 0x21, 0xf1, 0x8f, 0x6d, 0x4c, 0x81, 0x02, 0x40,
+ 0xd4, 0xe9, 0x46, 0x51, 0xba, 0x44, 0xf7, 0xa2,
+ 0xc8, 0x63, 0xce, 0xc7, 0xdc, 0x56, 0x60, 0x2d },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - public key >= p */
+{
+ .secret = (u8[32]){ 0x18, 0x13, 0xc1, 0x0a, 0x5c, 0x7f, 0x21, 0xf9,
+ 0x6e, 0x17, 0xf2, 0x88, 0xc0, 0xcc, 0x37, 0x60,
+ 0x7c, 0x04, 0xc5, 0xf5, 0xae, 0xa2, 0xdb, 0x13,
+ 0x4f, 0x9e, 0x2f, 0xfc, 0x66, 0xbd, 0x9d, 0xb8 },
+ .b_public = (u8[32]){ 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80 },
+ .expected_ss = (u8[32]){ 0x1c, 0xd0, 0xb2, 0x82, 0x67, 0xdc, 0x54, 0x1c,
+ 0x64, 0x2d, 0x6d, 0x7d, 0xca, 0x44, 0xa8, 0xb3,
+ 0x8a, 0x63, 0x73, 0x6e, 0xef, 0x5c, 0x4e, 0x65,
+ 0x01, 0xff, 0xbb, 0xb1, 0x78, 0x0c, 0x03, 0x3c },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - public key >= p */
+{
+ .secret = (u8[32]){ 0x78, 0x57, 0xfb, 0x80, 0x86, 0x53, 0x64, 0x5a,
+ 0x0b, 0xeb, 0x13, 0x8a, 0x64, 0xf5, 0xf4, 0xd7,
+ 0x33, 0xa4, 0x5e, 0xa8, 0x4c, 0x3c, 0xda, 0x11,
+ 0xa9, 0xc0, 0x6f, 0x7e, 0x71, 0x39, 0x14, 0x9e },
+ .b_public = (u8[32]){ 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80 },
+ .expected_ss = (u8[32]){ 0x87, 0x55, 0xbe, 0x01, 0xc6, 0x0a, 0x7e, 0x82,
+ 0x5c, 0xff, 0x3e, 0x0e, 0x78, 0xcb, 0x3a, 0xa4,
+ 0x33, 0x38, 0x61, 0x51, 0x6a, 0xa5, 0x9b, 0x1c,
+ 0x51, 0xa8, 0xb2, 0xa5, 0x43, 0xdf, 0xa8, 0x22 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - public key >= p */
+{
+ .secret = (u8[32]){ 0xe0, 0x3a, 0xa8, 0x42, 0xe2, 0xab, 0xc5, 0x6e,
+ 0x81, 0xe8, 0x7b, 0x8b, 0x9f, 0x41, 0x7b, 0x2a,
+ 0x1e, 0x59, 0x13, 0xc7, 0x23, 0xee, 0xd2, 0x8d,
+ 0x75, 0x2f, 0x8d, 0x47, 0xa5, 0x9f, 0x49, 0x8f },
+ .b_public = (u8[32]){ 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80 },
+ .expected_ss = (u8[32]){ 0x54, 0xc9, 0xa1, 0xed, 0x95, 0xe5, 0x46, 0xd2,
+ 0x78, 0x22, 0xa3, 0x60, 0x93, 0x1d, 0xda, 0x60,
+ 0xa1, 0xdf, 0x04, 0x9d, 0xa6, 0xf9, 0x04, 0x25,
+ 0x3c, 0x06, 0x12, 0xbb, 0xdc, 0x08, 0x74, 0x76 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - public key >= p */
+{
+ .secret = (u8[32]){ 0xf8, 0xf7, 0x07, 0xb7, 0x99, 0x9b, 0x18, 0xcb,
+ 0x0d, 0x6b, 0x96, 0x12, 0x4f, 0x20, 0x45, 0x97,
+ 0x2c, 0xa2, 0x74, 0xbf, 0xc1, 0x54, 0xad, 0x0c,
+ 0x87, 0x03, 0x8c, 0x24, 0xc6, 0xd0, 0xd4, 0xb2 },
+ .b_public = (u8[32]){ 0xda, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
+ .expected_ss = (u8[32]){ 0xcc, 0x1f, 0x40, 0xd7, 0x43, 0xcd, 0xc2, 0x23,
+ 0x0e, 0x10, 0x43, 0xda, 0xba, 0x8b, 0x75, 0xe8,
+ 0x10, 0xf1, 0xfb, 0xab, 0x7f, 0x25, 0x52, 0x69,
+ 0xbd, 0x9e, 0xbb, 0x29, 0xe6, 0xbf, 0x49, 0x4f },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - public key >= p */
+{
+ .secret = (u8[32]){ 0xa0, 0x34, 0xf6, 0x84, 0xfa, 0x63, 0x1e, 0x1a,
+ 0x34, 0x81, 0x18, 0xc1, 0xce, 0x4c, 0x98, 0x23,
+ 0x1f, 0x2d, 0x9e, 0xec, 0x9b, 0xa5, 0x36, 0x5b,
+ 0x4a, 0x05, 0xd6, 0x9a, 0x78, 0x5b, 0x07, 0x96 },
+ .b_public = (u8[32]){ 0xdb, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
+ .expected_ss = (u8[32]){ 0x54, 0x99, 0x8e, 0xe4, 0x3a, 0x5b, 0x00, 0x7b,
+ 0xf4, 0x99, 0xf0, 0x78, 0xe7, 0x36, 0x52, 0x44,
+ 0x00, 0xa8, 0xb5, 0xc7, 0xe9, 0xb9, 0xb4, 0x37,
+ 0x71, 0x74, 0x8c, 0x7c, 0xdf, 0x88, 0x04, 0x12 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - public key >= p */
+{
+ .secret = (u8[32]){ 0x30, 0xb6, 0xc6, 0xa0, 0xf2, 0xff, 0xa6, 0x80,
+ 0x76, 0x8f, 0x99, 0x2b, 0xa8, 0x9e, 0x15, 0x2d,
+ 0x5b, 0xc9, 0x89, 0x3d, 0x38, 0xc9, 0x11, 0x9b,
+ 0xe4, 0xf7, 0x67, 0xbf, 0xab, 0x6e, 0x0c, 0xa5 },
+ .b_public = (u8[32]){ 0xdc, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
+ .expected_ss = (u8[32]){ 0xea, 0xd9, 0xb3, 0x8e, 0xfd, 0xd7, 0x23, 0x63,
+ 0x79, 0x34, 0xe5, 0x5a, 0xb7, 0x17, 0xa7, 0xae,
+ 0x09, 0xeb, 0x86, 0xa2, 0x1d, 0xc3, 0x6a, 0x3f,
+ 0xee, 0xb8, 0x8b, 0x75, 0x9e, 0x39, 0x1e, 0x09 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - public key >= p */
+{
+ .secret = (u8[32]){ 0x90, 0x1b, 0x9d, 0xcf, 0x88, 0x1e, 0x01, 0xe0,
+ 0x27, 0x57, 0x50, 0x35, 0xd4, 0x0b, 0x43, 0xbd,
+ 0xc1, 0xc5, 0x24, 0x2e, 0x03, 0x08, 0x47, 0x49,
+ 0x5b, 0x0c, 0x72, 0x86, 0x46, 0x9b, 0x65, 0x91 },
+ .b_public = (u8[32]){ 0xea, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
+ .expected_ss = (u8[32]){ 0x60, 0x2f, 0xf4, 0x07, 0x89, 0xb5, 0x4b, 0x41,
+ 0x80, 0x59, 0x15, 0xfe, 0x2a, 0x62, 0x21, 0xf0,
+ 0x7a, 0x50, 0xff, 0xc2, 0xc3, 0xfc, 0x94, 0xcf,
+ 0x61, 0xf1, 0x3d, 0x79, 0x04, 0xe8, 0x8e, 0x0e },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - public key >= p */
+{
+ .secret = (u8[32]){ 0x80, 0x46, 0x67, 0x7c, 0x28, 0xfd, 0x82, 0xc9,
+ 0xa1, 0xbd, 0xb7, 0x1a, 0x1a, 0x1a, 0x34, 0xfa,
+ 0xba, 0x12, 0x25, 0xe2, 0x50, 0x7f, 0xe3, 0xf5,
+ 0x4d, 0x10, 0xbd, 0x5b, 0x0d, 0x86, 0x5f, 0x8e },
+ .b_public = (u8[32]){ 0xeb, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
+ .expected_ss = (u8[32]){ 0xe0, 0x0a, 0xe8, 0xb1, 0x43, 0x47, 0x12, 0x47,
+ 0xba, 0x24, 0xf1, 0x2c, 0x88, 0x55, 0x36, 0xc3,
+ 0xcb, 0x98, 0x1b, 0x58, 0xe1, 0xe5, 0x6b, 0x2b,
+ 0xaf, 0x35, 0xc1, 0x2a, 0xe1, 0xf7, 0x9c, 0x26 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - public key >= p */
+{
+ .secret = (u8[32]){ 0x60, 0x2f, 0x7e, 0x2f, 0x68, 0xa8, 0x46, 0xb8,
+ 0x2c, 0xc2, 0x69, 0xb1, 0xd4, 0x8e, 0x93, 0x98,
+ 0x86, 0xae, 0x54, 0xfd, 0x63, 0x6c, 0x1f, 0xe0,
+ 0x74, 0xd7, 0x10, 0x12, 0x7d, 0x47, 0x24, 0x91 },
+ .b_public = (u8[32]){ 0xef, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
+ .expected_ss = (u8[32]){ 0x98, 0xcb, 0x9b, 0x50, 0xdd, 0x3f, 0xc2, 0xb0,
+ 0xd4, 0xf2, 0xd2, 0xbf, 0x7c, 0x5c, 0xfd, 0xd1,
+ 0x0c, 0x8f, 0xcd, 0x31, 0xfc, 0x40, 0xaf, 0x1a,
+ 0xd4, 0x4f, 0x47, 0xc1, 0x31, 0x37, 0x63, 0x62 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - public key >= p */
+{
+ .secret = (u8[32]){ 0x60, 0x88, 0x7b, 0x3d, 0xc7, 0x24, 0x43, 0x02,
+ 0x6e, 0xbe, 0xdb, 0xbb, 0xb7, 0x06, 0x65, 0xf4,
+ 0x2b, 0x87, 0xad, 0xd1, 0x44, 0x0e, 0x77, 0x68,
+ 0xfb, 0xd7, 0xe8, 0xe2, 0xce, 0x5f, 0x63, 0x9d },
+ .b_public = (u8[32]){ 0xf0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
+ .expected_ss = (u8[32]){ 0x38, 0xd6, 0x30, 0x4c, 0x4a, 0x7e, 0x6d, 0x9f,
+ 0x79, 0x59, 0x33, 0x4f, 0xb5, 0x24, 0x5b, 0xd2,
+ 0xc7, 0x54, 0x52, 0x5d, 0x4c, 0x91, 0xdb, 0x95,
+ 0x02, 0x06, 0x92, 0x62, 0x34, 0xc1, 0xf6, 0x33 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - public key >= p */
+{
+ .secret = (u8[32]){ 0x78, 0xd3, 0x1d, 0xfa, 0x85, 0x44, 0x97, 0xd7,
+ 0x2d, 0x8d, 0xef, 0x8a, 0x1b, 0x7f, 0xb0, 0x06,
+ 0xce, 0xc2, 0xd8, 0xc4, 0x92, 0x46, 0x47, 0xc9,
+ 0x38, 0x14, 0xae, 0x56, 0xfa, 0xed, 0xa4, 0x95 },
+ .b_public = (u8[32]){ 0xf1, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
+ .expected_ss = (u8[32]){ 0x78, 0x6c, 0xd5, 0x49, 0x96, 0xf0, 0x14, 0xa5,
+ 0xa0, 0x31, 0xec, 0x14, 0xdb, 0x81, 0x2e, 0xd0,
+ 0x83, 0x55, 0x06, 0x1f, 0xdb, 0x5d, 0xe6, 0x80,
+ 0xa8, 0x00, 0xac, 0x52, 0x1f, 0x31, 0x8e, 0x23 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - public key >= p */
+{
+ .secret = (u8[32]){ 0xc0, 0x4c, 0x5b, 0xae, 0xfa, 0x83, 0x02, 0xdd,
+ 0xde, 0xd6, 0xa4, 0xbb, 0x95, 0x77, 0x61, 0xb4,
+ 0xeb, 0x97, 0xae, 0xfa, 0x4f, 0xc3, 0xb8, 0x04,
+ 0x30, 0x85, 0xf9, 0x6a, 0x56, 0x59, 0xb3, 0xa5 },
+ .b_public = (u8[32]){ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
+ .expected_ss = (u8[32]){ 0x29, 0xae, 0x8b, 0xc7, 0x3e, 0x9b, 0x10, 0xa0,
+ 0x8b, 0x4f, 0x68, 0x1c, 0x43, 0xc3, 0xe0, 0xac,
+ 0x1a, 0x17, 0x1d, 0x31, 0xb3, 0x8f, 0x1a, 0x48,
+ 0xef, 0xba, 0x29, 0xae, 0x63, 0x9e, 0xa1, 0x34 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - RFC 7748 */
+{
+ .secret = (u8[32]){ 0xa0, 0x46, 0xe3, 0x6b, 0xf0, 0x52, 0x7c, 0x9d,
+ 0x3b, 0x16, 0x15, 0x4b, 0x82, 0x46, 0x5e, 0xdd,
+ 0x62, 0x14, 0x4c, 0x0a, 0xc1, 0xfc, 0x5a, 0x18,
+ 0x50, 0x6a, 0x22, 0x44, 0xba, 0x44, 0x9a, 0x44 },
+ .b_public = (u8[32]){ 0xe6, 0xdb, 0x68, 0x67, 0x58, 0x30, 0x30, 0xdb,
+ 0x35, 0x94, 0xc1, 0xa4, 0x24, 0xb1, 0x5f, 0x7c,
+ 0x72, 0x66, 0x24, 0xec, 0x26, 0xb3, 0x35, 0x3b,
+ 0x10, 0xa9, 0x03, 0xa6, 0xd0, 0xab, 0x1c, 0x4c },
+ .expected_ss = (u8[32]){ 0xc3, 0xda, 0x55, 0x37, 0x9d, 0xe9, 0xc6, 0x90,
+ 0x8e, 0x94, 0xea, 0x4d, 0xf2, 0x8d, 0x08, 0x4f,
+ 0x32, 0xec, 0xcf, 0x03, 0x49, 0x1c, 0x71, 0xf7,
+ 0x54, 0xb4, 0x07, 0x55, 0x77, 0xa2, 0x85, 0x52 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - RFC 7748 */
+{
+ .secret = (u8[32]){ 0x48, 0x66, 0xe9, 0xd4, 0xd1, 0xb4, 0x67, 0x3c,
+ 0x5a, 0xd2, 0x26, 0x91, 0x95, 0x7d, 0x6a, 0xf5,
+ 0xc1, 0x1b, 0x64, 0x21, 0xe0, 0xea, 0x01, 0xd4,
+ 0x2c, 0xa4, 0x16, 0x9e, 0x79, 0x18, 0xba, 0x4d },
+ .b_public = (u8[32]){ 0xe5, 0x21, 0x0f, 0x12, 0x78, 0x68, 0x11, 0xd3,
+ 0xf4, 0xb7, 0x95, 0x9d, 0x05, 0x38, 0xae, 0x2c,
+ 0x31, 0xdb, 0xe7, 0x10, 0x6f, 0xc0, 0x3c, 0x3e,
+ 0xfc, 0x4c, 0xd5, 0x49, 0xc7, 0x15, 0xa4, 0x13 },
+ .expected_ss = (u8[32]){ 0x95, 0xcb, 0xde, 0x94, 0x76, 0xe8, 0x90, 0x7d,
+ 0x7a, 0xad, 0xe4, 0x5c, 0xb4, 0xb8, 0x73, 0xf8,
+ 0x8b, 0x59, 0x5a, 0x68, 0x79, 0x9f, 0xa1, 0x52,
+ 0xe6, 0xf8, 0xf7, 0x64, 0x7a, 0xac, 0x79, 0x57 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - edge case for shared secret */
+{
+ .secret = (u8[32]){ 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
+ 0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
+ 0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
+ 0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
+ .b_public = (u8[32]){ 0x0a, 0xb4, 0xe7, 0x63, 0x80, 0xd8, 0x4d, 0xde,
+ 0x4f, 0x68, 0x33, 0xc5, 0x8f, 0x2a, 0x9f, 0xb8,
+ 0xf8, 0x3b, 0xb0, 0x16, 0x9b, 0x17, 0x2b, 0xe4,
+ 0xb6, 0xe0, 0x59, 0x28, 0x87, 0x74, 0x1a, 0x36 },
+ .expected_ss = (u8[32]){ 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - edge case for shared secret */
+{
+ .secret = (u8[32]){ 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
+ 0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
+ 0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
+ 0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
+ .b_public = (u8[32]){ 0x89, 0xe1, 0x0d, 0x57, 0x01, 0xb4, 0x33, 0x7d,
+ 0x2d, 0x03, 0x21, 0x81, 0x53, 0x8b, 0x10, 0x64,
+ 0xbd, 0x40, 0x84, 0x40, 0x1c, 0xec, 0xa1, 0xfd,
+ 0x12, 0x66, 0x3a, 0x19, 0x59, 0x38, 0x80, 0x00 },
+ .expected_ss = (u8[32]){ 0x09, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - edge case for shared secret */
+{
+ .secret = (u8[32]){ 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
+ 0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
+ 0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
+ 0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
+ .b_public = (u8[32]){ 0x2b, 0x55, 0xd3, 0xaa, 0x4a, 0x8f, 0x80, 0xc8,
+ 0xc0, 0xb2, 0xae, 0x5f, 0x93, 0x3e, 0x85, 0xaf,
+ 0x49, 0xbe, 0xac, 0x36, 0xc2, 0xfa, 0x73, 0x94,
+ 0xba, 0xb7, 0x6c, 0x89, 0x33, 0xf8, 0xf8, 0x1d },
+ .expected_ss = (u8[32]){ 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - edge case for shared secret */
+{
+ .secret = (u8[32]){ 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
+ 0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
+ 0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
+ 0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
+ .b_public = (u8[32]){ 0x63, 0xe5, 0xb1, 0xfe, 0x96, 0x01, 0xfe, 0x84,
+ 0x38, 0x5d, 0x88, 0x66, 0xb0, 0x42, 0x12, 0x62,
+ 0xf7, 0x8f, 0xbf, 0xa5, 0xaf, 0xf9, 0x58, 0x5e,
+ 0x62, 0x66, 0x79, 0xb1, 0x85, 0x47, 0xd9, 0x59 },
+ .expected_ss = (u8[32]){ 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x3f },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - edge case for shared secret */
+{
+ .secret = (u8[32]){ 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
+ 0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
+ 0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
+ 0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
+ .b_public = (u8[32]){ 0xe4, 0x28, 0xf3, 0xda, 0xc1, 0x78, 0x09, 0xf8,
+ 0x27, 0xa5, 0x22, 0xce, 0x32, 0x35, 0x50, 0x58,
+ 0xd0, 0x73, 0x69, 0x36, 0x4a, 0xa7, 0x89, 0x02,
+ 0xee, 0x10, 0x13, 0x9b, 0x9f, 0x9d, 0xd6, 0x53 },
+ .expected_ss = (u8[32]){ 0xfc, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x3f },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - edge case for shared secret */
+{
+ .secret = (u8[32]){ 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
+ 0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
+ 0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
+ 0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
+ .b_public = (u8[32]){ 0xb3, 0xb5, 0x0e, 0x3e, 0xd3, 0xa4, 0x07, 0xb9,
+ 0x5d, 0xe9, 0x42, 0xef, 0x74, 0x57, 0x5b, 0x5a,
+ 0xb8, 0xa1, 0x0c, 0x09, 0xee, 0x10, 0x35, 0x44,
+ 0xd6, 0x0b, 0xdf, 0xed, 0x81, 0x38, 0xab, 0x2b },
+ .expected_ss = (u8[32]){ 0xf9, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x3f },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - edge case for shared secret */
+{
+ .secret = (u8[32]){ 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
+ 0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
+ 0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
+ 0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
+ .b_public = (u8[32]){ 0x21, 0x3f, 0xff, 0xe9, 0x3d, 0x5e, 0xa8, 0xcd,
+ 0x24, 0x2e, 0x46, 0x28, 0x44, 0x02, 0x99, 0x22,
+ 0xc4, 0x3c, 0x77, 0xc9, 0xe3, 0xe4, 0x2f, 0x56,
+ 0x2f, 0x48, 0x5d, 0x24, 0xc5, 0x01, 0xa2, 0x0b },
+ .expected_ss = (u8[32]){ 0xf3, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x3f },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - edge case for shared secret */
+{
+ .secret = (u8[32]){ 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
+ 0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
+ 0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
+ 0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
+ .b_public = (u8[32]){ 0x91, 0xb2, 0x32, 0xa1, 0x78, 0xb3, 0xcd, 0x53,
+ 0x09, 0x32, 0x44, 0x1e, 0x61, 0x39, 0x41, 0x8f,
+ 0x72, 0x17, 0x22, 0x92, 0xf1, 0xda, 0x4c, 0x18,
+ 0x34, 0xfc, 0x5e, 0xbf, 0xef, 0xb5, 0x1e, 0x3f },
+ .expected_ss = (u8[32]){ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x03 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - edge case for shared secret */
+{
+ .secret = (u8[32]){ 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
+ 0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
+ 0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
+ 0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
+ .b_public = (u8[32]){ 0x04, 0x5c, 0x6e, 0x11, 0xc5, 0xd3, 0x32, 0x55,
+ 0x6c, 0x78, 0x22, 0xfe, 0x94, 0xeb, 0xf8, 0x9b,
+ 0x56, 0xa3, 0x87, 0x8d, 0xc2, 0x7c, 0xa0, 0x79,
+ 0x10, 0x30, 0x58, 0x84, 0x9f, 0xab, 0xcb, 0x4f },
+ .expected_ss = (u8[32]){ 0xe5, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - edge case for shared secret */
+{
+ .secret = (u8[32]){ 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
+ 0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
+ 0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
+ 0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
+ .b_public = (u8[32]){ 0x1c, 0xa2, 0x19, 0x0b, 0x71, 0x16, 0x35, 0x39,
+ 0x06, 0x3c, 0x35, 0x77, 0x3b, 0xda, 0x0c, 0x9c,
+ 0x92, 0x8e, 0x91, 0x36, 0xf0, 0x62, 0x0a, 0xeb,
+ 0x09, 0x3f, 0x09, 0x91, 0x97, 0xb7, 0xf7, 0x4e },
+ .expected_ss = (u8[32]){ 0xe3, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - edge case for shared secret */
+{
+ .secret = (u8[32]){ 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
+ 0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
+ 0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
+ 0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
+ .b_public = (u8[32]){ 0xf7, 0x6e, 0x90, 0x10, 0xac, 0x33, 0xc5, 0x04,
+ 0x3b, 0x2d, 0x3b, 0x76, 0xa8, 0x42, 0x17, 0x10,
+ 0x00, 0xc4, 0x91, 0x62, 0x22, 0xe9, 0xe8, 0x58,
+ 0x97, 0xa0, 0xae, 0xc7, 0xf6, 0x35, 0x0b, 0x3c },
+ .expected_ss = (u8[32]){ 0xdd, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - edge case for shared secret */
+{
+ .secret = (u8[32]){ 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
+ 0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
+ 0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
+ 0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
+ .b_public = (u8[32]){ 0xbb, 0x72, 0x68, 0x8d, 0x8f, 0x8a, 0xa7, 0xa3,
+ 0x9c, 0xd6, 0x06, 0x0c, 0xd5, 0xc8, 0x09, 0x3c,
+ 0xde, 0xc6, 0xfe, 0x34, 0x19, 0x37, 0xc3, 0x88,
+ 0x6a, 0x99, 0x34, 0x6c, 0xd0, 0x7f, 0xaa, 0x55 },
+ .expected_ss = (u8[32]){ 0xdb, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - edge case for shared secret */
+{
+ .secret = (u8[32]){ 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
+ 0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
+ 0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
+ 0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
+ .b_public = (u8[32]){ 0x88, 0xfd, 0xde, 0xa1, 0x93, 0x39, 0x1c, 0x6a,
+ 0x59, 0x33, 0xef, 0x9b, 0x71, 0x90, 0x15, 0x49,
+ 0x44, 0x72, 0x05, 0xaa, 0xe9, 0xda, 0x92, 0x8a,
+ 0x6b, 0x91, 0xa3, 0x52, 0xba, 0x10, 0xf4, 0x1f },
+ .expected_ss = (u8[32]){ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - edge case for shared secret */
+{
+ .secret = (u8[32]){ 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
+ 0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
+ 0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
+ 0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
+ .b_public = (u8[32]){ 0x30, 0x3b, 0x39, 0x2f, 0x15, 0x31, 0x16, 0xca,
+ 0xd9, 0xcc, 0x68, 0x2a, 0x00, 0xcc, 0xc4, 0x4c,
+ 0x95, 0xff, 0x0d, 0x3b, 0xbe, 0x56, 0x8b, 0xeb,
+ 0x6c, 0x4e, 0x73, 0x9b, 0xaf, 0xdc, 0x2c, 0x68 },
+ .expected_ss = (u8[32]){ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - checking for overflow */
+{
+ .secret = (u8[32]){ 0xc8, 0x17, 0x24, 0x70, 0x40, 0x00, 0xb2, 0x6d,
+ 0x31, 0x70, 0x3c, 0xc9, 0x7e, 0x3a, 0x37, 0x8d,
+ 0x56, 0xfa, 0xd8, 0x21, 0x93, 0x61, 0xc8, 0x8c,
+ 0xca, 0x8b, 0xd7, 0xc5, 0x71, 0x9b, 0x12, 0xb2 },
+ .b_public = (u8[32]){ 0xfd, 0x30, 0x0a, 0xeb, 0x40, 0xe1, 0xfa, 0x58,
+ 0x25, 0x18, 0x41, 0x2b, 0x49, 0xb2, 0x08, 0xa7,
+ 0x84, 0x2b, 0x1e, 0x1f, 0x05, 0x6a, 0x04, 0x01,
+ 0x78, 0xea, 0x41, 0x41, 0x53, 0x4f, 0x65, 0x2d },
+ .expected_ss = (u8[32]){ 0xb7, 0x34, 0x10, 0x5d, 0xc2, 0x57, 0x58, 0x5d,
+ 0x73, 0xb5, 0x66, 0xcc, 0xb7, 0x6f, 0x06, 0x27,
+ 0x95, 0xcc, 0xbe, 0xc8, 0x91, 0x28, 0xe5, 0x2b,
+ 0x02, 0xf3, 0xe5, 0x96, 0x39, 0xf1, 0x3c, 0x46 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - checking for overflow */
+{
+ .secret = (u8[32]){ 0xc8, 0x17, 0x24, 0x70, 0x40, 0x00, 0xb2, 0x6d,
+ 0x31, 0x70, 0x3c, 0xc9, 0x7e, 0x3a, 0x37, 0x8d,
+ 0x56, 0xfa, 0xd8, 0x21, 0x93, 0x61, 0xc8, 0x8c,
+ 0xca, 0x8b, 0xd7, 0xc5, 0x71, 0x9b, 0x12, 0xb2 },
+ .b_public = (u8[32]){ 0xc8, 0xef, 0x79, 0xb5, 0x14, 0xd7, 0x68, 0x26,
+ 0x77, 0xbc, 0x79, 0x31, 0xe0, 0x6e, 0xe5, 0xc2,
+ 0x7c, 0x9b, 0x39, 0x2b, 0x4a, 0xe9, 0x48, 0x44,
+ 0x73, 0xf5, 0x54, 0xe6, 0x67, 0x8e, 0xcc, 0x2e },
+ .expected_ss = (u8[32]){ 0x64, 0x7a, 0x46, 0xb6, 0xfc, 0x3f, 0x40, 0xd6,
+ 0x21, 0x41, 0xee, 0x3c, 0xee, 0x70, 0x6b, 0x4d,
+ 0x7a, 0x92, 0x71, 0x59, 0x3a, 0x7b, 0x14, 0x3e,
+ 0x8e, 0x2e, 0x22, 0x79, 0x88, 0x3e, 0x45, 0x50 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - checking for overflow */
+{
+ .secret = (u8[32]){ 0xc8, 0x17, 0x24, 0x70, 0x40, 0x00, 0xb2, 0x6d,
+ 0x31, 0x70, 0x3c, 0xc9, 0x7e, 0x3a, 0x37, 0x8d,
+ 0x56, 0xfa, 0xd8, 0x21, 0x93, 0x61, 0xc8, 0x8c,
+ 0xca, 0x8b, 0xd7, 0xc5, 0x71, 0x9b, 0x12, 0xb2 },
+ .b_public = (u8[32]){ 0x64, 0xae, 0xac, 0x25, 0x04, 0x14, 0x48, 0x61,
+ 0x53, 0x2b, 0x7b, 0xbc, 0xb6, 0xc8, 0x7d, 0x67,
+ 0xdd, 0x4c, 0x1f, 0x07, 0xeb, 0xc2, 0xe0, 0x6e,
+ 0xff, 0xb9, 0x5a, 0xec, 0xc6, 0x17, 0x0b, 0x2c },
+ .expected_ss = (u8[32]){ 0x4f, 0xf0, 0x3d, 0x5f, 0xb4, 0x3c, 0xd8, 0x65,
+ 0x7a, 0x3c, 0xf3, 0x7c, 0x13, 0x8c, 0xad, 0xce,
+ 0xcc, 0xe5, 0x09, 0xe4, 0xeb, 0xa0, 0x89, 0xd0,
+ 0xef, 0x40, 0xb4, 0xe4, 0xfb, 0x94, 0x61, 0x55 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - checking for overflow */
+{
+ .secret = (u8[32]){ 0xc8, 0x17, 0x24, 0x70, 0x40, 0x00, 0xb2, 0x6d,
+ 0x31, 0x70, 0x3c, 0xc9, 0x7e, 0x3a, 0x37, 0x8d,
+ 0x56, 0xfa, 0xd8, 0x21, 0x93, 0x61, 0xc8, 0x8c,
+ 0xca, 0x8b, 0xd7, 0xc5, 0x71, 0x9b, 0x12, 0xb2 },
+ .b_public = (u8[32]){ 0xbf, 0x68, 0xe3, 0x5e, 0x9b, 0xdb, 0x7e, 0xee,
+ 0x1b, 0x50, 0x57, 0x02, 0x21, 0x86, 0x0f, 0x5d,
+ 0xcd, 0xad, 0x8a, 0xcb, 0xab, 0x03, 0x1b, 0x14,
+ 0x97, 0x4c, 0xc4, 0x90, 0x13, 0xc4, 0x98, 0x31 },
+ .expected_ss = (u8[32]){ 0x21, 0xce, 0xe5, 0x2e, 0xfd, 0xbc, 0x81, 0x2e,
+ 0x1d, 0x02, 0x1a, 0x4a, 0xf1, 0xe1, 0xd8, 0xbc,
+ 0x4d, 0xb3, 0xc4, 0x00, 0xe4, 0xd2, 0xa2, 0xc5,
+ 0x6a, 0x39, 0x26, 0xdb, 0x4d, 0x99, 0xc6, 0x5b },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - checking for overflow */
+{
+ .secret = (u8[32]){ 0xc8, 0x17, 0x24, 0x70, 0x40, 0x00, 0xb2, 0x6d,
+ 0x31, 0x70, 0x3c, 0xc9, 0x7e, 0x3a, 0x37, 0x8d,
+ 0x56, 0xfa, 0xd8, 0x21, 0x93, 0x61, 0xc8, 0x8c,
+ 0xca, 0x8b, 0xd7, 0xc5, 0x71, 0x9b, 0x12, 0xb2 },
+ .b_public = (u8[32]){ 0x53, 0x47, 0xc4, 0x91, 0x33, 0x1a, 0x64, 0xb4,
+ 0x3d, 0xdc, 0x68, 0x30, 0x34, 0xe6, 0x77, 0xf5,
+ 0x3d, 0xc3, 0x2b, 0x52, 0xa5, 0x2a, 0x57, 0x7c,
+ 0x15, 0xa8, 0x3b, 0xf2, 0x98, 0xe9, 0x9f, 0x19 },
+ .expected_ss = (u8[32]){ 0x18, 0xcb, 0x89, 0xe4, 0xe2, 0x0c, 0x0c, 0x2b,
+ 0xd3, 0x24, 0x30, 0x52, 0x45, 0x26, 0x6c, 0x93,
+ 0x27, 0x69, 0x0b, 0xbe, 0x79, 0xac, 0xb8, 0x8f,
+ 0x5b, 0x8f, 0xb3, 0xf7, 0x4e, 0xca, 0x3e, 0x52 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - private key == -1 (mod order) */
+{
+ .secret = (u8[32]){ 0xa0, 0x23, 0xcd, 0xd0, 0x83, 0xef, 0x5b, 0xb8,
+ 0x2f, 0x10, 0xd6, 0x2e, 0x59, 0xe1, 0x5a, 0x68,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50 },
+ .b_public = (u8[32]){ 0x25, 0x8e, 0x04, 0x52, 0x3b, 0x8d, 0x25, 0x3e,
+ 0xe6, 0x57, 0x19, 0xfc, 0x69, 0x06, 0xc6, 0x57,
+ 0x19, 0x2d, 0x80, 0x71, 0x7e, 0xdc, 0x82, 0x8f,
+ 0xa0, 0xaf, 0x21, 0x68, 0x6e, 0x2f, 0xaa, 0x75 },
+ .expected_ss = (u8[32]){ 0x25, 0x8e, 0x04, 0x52, 0x3b, 0x8d, 0x25, 0x3e,
+ 0xe6, 0x57, 0x19, 0xfc, 0x69, 0x06, 0xc6, 0x57,
+ 0x19, 0x2d, 0x80, 0x71, 0x7e, 0xdc, 0x82, 0x8f,
+ 0xa0, 0xaf, 0x21, 0x68, 0x6e, 0x2f, 0xaa, 0x75 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+},
+/* wycheproof - private key == 1 (mod order) on twist */
+{
+ .secret = (u8[32]){ 0x58, 0x08, 0x3d, 0xd2, 0x61, 0xad, 0x91, 0xef,
+ 0xf9, 0x52, 0x32, 0x2e, 0xc8, 0x24, 0xc6, 0x82,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x5f },
+ .b_public = (u8[32]){ 0x2e, 0xae, 0x5e, 0xc3, 0xdd, 0x49, 0x4e, 0x9f,
+ 0x2d, 0x37, 0xd2, 0x58, 0xf8, 0x73, 0xa8, 0xe6,
+ 0xe9, 0xd0, 0xdb, 0xd1, 0xe3, 0x83, 0xef, 0x64,
+ 0xd9, 0x8b, 0xb9, 0x1b, 0x3e, 0x0b, 0xe0, 0x35 },
+ .expected_ss = (u8[32]){ 0x2e, 0xae, 0x5e, 0xc3, 0xdd, 0x49, 0x4e, 0x9f,
+ 0x2d, 0x37, 0xd2, 0x58, 0xf8, 0x73, 0xa8, 0xe6,
+ 0xe9, 0xd0, 0xdb, 0xd1, 0xe3, 0x83, 0xef, 0x64,
+ 0xd9, 0x8b, 0xb9, 0x1b, 0x3e, 0x0b, 0xe0, 0x35 },
+ .secret_size = 32,
+ .b_public_size = 32,
+ .expected_ss_size = 32,
+
+}
+};
+
static const struct kpp_testvec ecdh_tv_template[] = {
{
#ifndef CONFIG_CRYPTO_FIPS
@@ -5637,6 +6862,1238 @@ static const struct hash_testvec poly1305_tv_template[] = {
}
};
+/* NHPoly1305 test vectors from https://github.com/google/adiantum */
+static const struct hash_testvec nhpoly1305_tv_template[] = {
+ {
+ .key = "\xd2\x5d\x4c\xdd\x8d\x2b\x7f\x7a"
+ "\xd9\xbe\x71\xec\xd1\x83\x52\xe3"
+ "\xe1\xad\xd7\x5c\x0a\x75\x9d\xec"
+ "\x1d\x13\x7e\x5d\x71\x07\xc9\xe4"
+ "\x57\x2d\x44\x68\xcf\xd8\xd6\xc5"
+ "\x39\x69\x7d\x32\x75\x51\x4f\x7e"
+ "\xb2\x4c\xc6\x90\x51\x6e\xd9\xd6"
+ "\xa5\x8b\x2d\xf1\x94\xf9\xf7\x5e"
+ "\x2c\x84\x7b\x41\x0f\x88\x50\x89"
+ "\x30\xd9\xa1\x38\x46\x6c\xc0\x4f"
+ "\xe8\xdf\xdc\x66\xab\x24\x43\x41"
+ "\x91\x55\x29\x65\x86\x28\x5e\x45"
+ "\xd5\x2d\xb7\x80\x08\x9a\xc3\xd4"
+ "\x9a\x77\x0a\xd4\xef\x3e\xe6\x3f"
+ "\x6f\x2f\x9b\x3a\x7d\x12\x1e\x80"
+ "\x6c\x44\xa2\x25\xe1\xf6\x60\xe9"
+ "\x0d\xaf\xc5\x3c\xa5\x79\xae\x64"
+ "\xbc\xa0\x39\xa3\x4d\x10\xe5\x4d"
+ "\xd5\xe7\x89\x7a\x13\xee\x06\x78"
+ "\xdc\xa4\xdc\x14\x27\xe6\x49\x38"
+ "\xd0\xe0\x45\x25\x36\xc5\xf4\x79"
+ "\x2e\x9a\x98\x04\xe4\x2b\x46\x52"
+ "\x7c\x33\xca\xe2\x56\x51\x50\xe2"
+ "\xa5\x9a\xae\x18\x6a\x13\xf8\xd2"
+ "\x21\x31\x66\x02\xe2\xda\x8d\x7e"
+ "\x41\x19\xb2\x61\xee\x48\x8f\xf1"
+ "\x65\x24\x2e\x1e\x68\xce\x05\xd9"
+ "\x2a\xcf\xa5\x3a\x57\xdd\x35\x91"
+ "\x93\x01\xca\x95\xfc\x2b\x36\x04"
+ "\xe6\x96\x97\x28\xf6\x31\xfe\xa3"
+ "\x9d\xf6\x6a\x1e\x80\x8d\xdc\xec"
+ "\xaf\x66\x11\x13\x02\x88\xd5\x27"
+ "\x33\xb4\x1a\xcd\xa3\xf6\xde\x31"
+ "\x8e\xc0\x0e\x6c\xd8\x5a\x97\x5e"
+ "\xdd\xfd\x60\x69\x38\x46\x3f\x90"
+ "\x5e\x97\xd3\x32\x76\xc7\x82\x49"
+ "\xfe\xba\x06\x5f\x2f\xa2\xfd\xff"
+ "\x80\x05\x40\xe4\x33\x03\xfb\x10"
+ "\xc0\xde\x65\x8c\xc9\x8d\x3a\x9d"
+ "\xb5\x7b\x36\x4b\xb5\x0c\xcf\x00"
+ "\x9c\x87\xe4\x49\xad\x90\xda\x4a"
+ "\xdd\xbd\xff\xe2\x32\x57\xd6\x78"
+ "\x36\x39\x6c\xd3\x5b\x9b\x88\x59"
+ "\x2d\xf0\x46\xe4\x13\x0e\x2b\x35"
+ "\x0d\x0f\x73\x8a\x4f\x26\x84\x75"
+ "\x88\x3c\xc5\x58\x66\x18\x1a\xb4"
+ "\x64\x51\x34\x27\x1b\xa4\x11\xc9"
+ "\x6d\x91\x8a\xfa\x32\x60\x9d\xd7"
+ "\x87\xe5\xaa\x43\x72\xf8\xda\xd1"
+ "\x48\x44\x13\x61\xdc\x8c\x76\x17"
+ "\x0c\x85\x4e\xf3\xdd\xa2\x42\xd2"
+ "\x74\xc1\x30\x1b\xeb\x35\x31\x29"
+ "\x5b\xd7\x4c\x94\x46\x35\xa1\x23"
+ "\x50\xf2\xa2\x8e\x7e\x4f\x23\x4f"
+ "\x51\xff\xe2\xc9\xa3\x7d\x56\x8b"
+ "\x41\xf2\xd0\xc5\x57\x7e\x59\xac"
+ "\xbb\x65\xf3\xfe\xf7\x17\xef\x63"
+ "\x7c\x6f\x23\xdd\x22\x8e\xed\x84"
+ "\x0e\x3b\x09\xb3\xf3\xf4\x8f\xcd"
+ "\x37\xa8\xe1\xa7\x30\xdb\xb1\xa2"
+ "\x9c\xa2\xdf\x34\x17\x3e\x68\x44"
+ "\xd0\xde\x03\x50\xd1\x48\x6b\x20"
+ "\xe2\x63\x45\xa5\xea\x87\xc2\x42"
+ "\x95\x03\x49\x05\xed\xe0\x90\x29"
+ "\x1a\xb8\xcf\x9b\x43\xcf\x29\x7a"
+ "\x63\x17\x41\x9f\xe0\xc9\x10\xfd"
+ "\x2c\x56\x8c\x08\x55\xb4\xa9\x27"
+ "\x0f\x23\xb1\x05\x6a\x12\x46\xc7"
+ "\xe1\xfe\x28\x93\x93\xd7\x2f\xdc"
+ "\x98\x30\xdb\x75\x8a\xbe\x97\x7a"
+ "\x02\xfb\x8c\xba\xbe\x25\x09\xbe"
+ "\xce\xcb\xa2\xef\x79\x4d\x0e\x9d"
+ "\x1b\x9d\xb6\x39\x34\x38\xfa\x07"
+ "\xec\xe8\xfc\x32\x85\x1d\xf7\x85"
+ "\x63\xc3\x3c\xc0\x02\x75\xd7\x3f"
+ "\xb2\x68\x60\x66\x65\x81\xc6\xb1"
+ "\x42\x65\x4b\x4b\x28\xd7\xc7\xaa"
+ "\x9b\xd2\xdc\x1b\x01\xe0\x26\x39"
+ "\x01\xc1\x52\x14\xd1\x3f\xb7\xe6"
+ "\x61\x41\xc7\x93\xd2\xa2\x67\xc6"
+ "\xf7\x11\xb5\xf5\xea\xdd\x19\xfb"
+ "\x4d\x21\x12\xd6\x7d\xf1\x10\xb0"
+ "\x89\x07\xc7\x5a\x52\x73\x70\x2f"
+ "\x32\xef\x65\x2b\x12\xb2\xf0\xf5"
+ "\x20\xe0\x90\x59\x7e\x64\xf1\x4c"
+ "\x41\xb3\xa5\x91\x08\xe6\x5e\x5f"
+ "\x05\x56\x76\xb4\xb0\xcd\x70\x53"
+ "\x10\x48\x9c\xff\xc2\x69\x55\x24"
+ "\x87\xef\x84\xea\xfb\xa7\xbf\xa0"
+ "\x91\x04\xad\x4f\x8b\x57\x54\x4b"
+ "\xb6\xe9\xd1\xac\x37\x2f\x1d\x2e"
+ "\xab\xa5\xa4\xe8\xff\xfb\xd9\x39"
+ "\x2f\xb7\xac\xd1\xfe\x0b\x9a\x80"
+ "\x0f\xb6\xf4\x36\x39\x90\x51\xe3"
+ "\x0a\x2f\xb6\x45\x76\x89\xcd\x61"
+ "\xfe\x48\x5f\x75\x1d\x13\x00\x62"
+ "\x80\x24\x47\xe7\xbc\x37\xd7\xe3"
+ "\x15\xe8\x68\x22\xaf\x80\x6f\x4b"
+ "\xa8\x9f\x01\x10\x48\x14\xc3\x02"
+ "\x52\xd2\xc7\x75\x9b\x52\x6d\x30"
+ "\xac\x13\x85\xc8\xf7\xa3\x58\x4b"
+ "\x49\xf7\x1c\x45\x55\x8c\x39\x9a"
+ "\x99\x6d\x97\x27\x27\xe6\xab\xdd"
+ "\x2c\x42\x1b\x35\xdd\x9d\x73\xbb"
+ "\x6c\xf3\x64\xf1\xfb\xb9\xf7\xe6"
+ "\x4a\x3c\xc0\x92\xc0\x2e\xb7\x1a"
+ "\xbe\xab\xb3\x5a\xe5\xea\xb1\x48"
+ "\x58\x13\x53\x90\xfd\xc3\x8e\x54"
+ "\xf9\x18\x16\x73\xe8\xcb\x6d\x39"
+ "\x0e\xd7\xe0\xfe\xb6\x9f\x43\x97"
+ "\xe8\xd0\x85\x56\x83\x3e\x98\x68"
+ "\x7f\xbd\x95\xa8\x9a\x61\x21\x8f"
+ "\x06\x98\x34\xa6\xc8\xd6\x1d\xf3"
+ "\x3d\x43\xa4\x9a\x8c\xe5\xd3\x5a"
+ "\x32\xa2\x04\x22\xa4\x19\x1a\x46"
+ "\x42\x7e\x4d\xe5\xe0\xe6\x0e\xca"
+ "\xd5\x58\x9d\x2c\xaf\xda\x33\x5c"
+ "\xb0\x79\x9e\xc9\xfc\xca\xf0\x2f"
+ "\xa8\xb2\x77\xeb\x7a\xa2\xdd\x37"
+ "\x35\x83\x07\xd6\x02\x1a\xb6\x6c"
+ "\x24\xe2\x59\x08\x0e\xfd\x3e\x46"
+ "\xec\x40\x93\xf4\x00\x26\x4f\x2a"
+ "\xff\x47\x2f\xeb\x02\x92\x26\x5b"
+ "\x53\x17\xc2\x8d\x2a\xc7\xa3\x1b"
+ "\xcd\xbc\xa7\xe8\xd1\x76\xe3\x80"
+ "\x21\xca\x5d\x3b\xe4\x9c\x8f\xa9"
+ "\x5b\x7f\x29\x7f\x7c\xd8\xed\x6d"
+ "\x8c\xb2\x86\x85\xe7\x77\xf2\x85"
+ "\xab\x38\xa9\x9d\xc1\x4e\xc5\x64"
+ "\x33\x73\x8b\x59\x03\xad\x05\xdf"
+ "\x25\x98\x31\xde\xef\x13\xf1\x9b"
+ "\x3c\x91\x9d\x7b\xb1\xfa\xe6\xbf"
+ "\x5b\xed\xa5\x55\xe6\xea\x6c\x74"
+ "\xf4\xb9\xe4\x45\x64\x72\x81\xc2"
+ "\x4c\x28\xd4\xcd\xac\xe2\xde\xf9"
+ "\xeb\x5c\xeb\x61\x60\x5a\xe5\x28",
+ .ksize = 1088,
+ .plaintext = "",
+ .psize = 0,
+ .digest = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00",
+ }, {
+ .key = "\x29\x21\x43\xcb\xcb\x13\x07\xde"
+ "\xbf\x48\xdf\x8a\x7f\xa2\x84\xde"
+ "\x72\x23\x9d\xf5\xf0\x07\xf2\x4c"
+ "\x20\x3a\x93\xb9\xcd\x5d\xfe\xcb"
+ "\x99\x2c\x2b\x58\xc6\x50\x5f\x94"
+ "\x56\xc3\x7c\x0d\x02\x3f\xb8\x5e"
+ "\x7b\xc0\x6c\x51\x34\x76\xc0\x0e"
+ "\xc6\x22\xc8\x9e\x92\xa0\x21\xc9"
+ "\x85\x5c\x7c\xf8\xe2\x64\x47\xc9"
+ "\xe4\xa2\x57\x93\xf8\xa2\x69\xcd"
+ "\x62\x98\x99\xf4\xd7\x7b\x14\xb1"
+ "\xd8\x05\xff\x04\x15\xc9\xe1\x6e"
+ "\x9b\xe6\x50\x6b\x0b\x3f\x22\x1f"
+ "\x08\xde\x0c\x5b\x08\x7e\xc6\x2f"
+ "\x6c\xed\xd6\xb2\x15\xa4\xb3\xf9"
+ "\xa7\x46\x38\x2a\xea\x69\xa5\xde"
+ "\x02\xc3\x96\x89\x4d\x55\x3b\xed"
+ "\x3d\x3a\x85\x77\xbf\x97\x45\x5c"
+ "\x9e\x02\x69\xe2\x1b\x68\xbe\x96"
+ "\xfb\x64\x6f\x0f\xf6\x06\x40\x67"
+ "\xfa\x04\xe3\x55\xfa\xbe\xa4\x60"
+ "\xef\x21\x66\x97\xe6\x9d\x5c\x1f"
+ "\x62\x37\xaa\x31\xde\xe4\x9c\x28"
+ "\x95\xe0\x22\x86\xf4\x4d\xf3\x07"
+ "\xfd\x5f\x3a\x54\x2c\x51\x80\x71"
+ "\xba\x78\x69\x5b\x65\xab\x1f\x81"
+ "\xed\x3b\xff\x34\xa3\xfb\xbc\x73"
+ "\x66\x7d\x13\x7f\xdf\x6e\xe2\xe2"
+ "\xeb\x4f\x6c\xda\x7d\x33\x57\xd0"
+ "\xd3\x7c\x95\x4f\x33\x58\x21\xc7"
+ "\xc0\xe5\x6f\x42\x26\xc6\x1f\x5e"
+ "\x85\x1b\x98\x9a\xa2\x1e\x55\x77"
+ "\x23\xdf\x81\x5e\x79\x55\x05\xfc"
+ "\xfb\xda\xee\xba\x5a\xba\xf7\x77"
+ "\x7f\x0e\xd3\xe1\x37\xfe\x8d\x2b"
+ "\xd5\x3f\xfb\xd0\xc0\x3c\x0b\x3f"
+ "\xcf\x3c\x14\xcf\xfb\x46\x72\x4c"
+ "\x1f\x39\xe2\xda\x03\x71\x6d\x23"
+ "\xef\x93\xcd\x39\xd9\x37\x80\x4d"
+ "\x65\x61\xd1\x2c\x03\xa9\x47\x72"
+ "\x4d\x1e\x0e\x16\x33\x0f\x21\x17"
+ "\xec\x92\xea\x6f\x37\x22\xa4\xd8"
+ "\x03\x33\x9e\xd8\x03\x69\x9a\xe8"
+ "\xb2\x57\xaf\x78\x99\x05\x12\xab"
+ "\x48\x90\x80\xf0\x12\x9b\x20\x64"
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+ "\xbd\x96\x59\xb3\x8b\x32\x7a\x92"
+ "\x9f\xd8\x25\x2b\xdf\xc0\x4c\xda",
+ .ksize = 1088,
+ .plaintext = "\xbc\xda\x81\xa8\x78\x79\x1c\xbf"
+ "\x77\x53\xba\x4c\x30\x5b\xb8\x33",
+ .psize = 16,
+ .digest = "\x04\xbf\x7f\x6a\xce\x72\xea\x6a"
+ "\x79\xdb\xb0\xc9\x60\xf6\x12\xcc",
+ .np = 6,
+ .tap = { 4, 4, 1, 1, 1, 5 },
+ }, {
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+ "\x68\xf5\xb3\x81\x71\x4b\xa1\xfa"
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+ "\xb8\x23\x87\x4a\x99\x27\x20\x87"
+ "\x62\x44\x0a\x4a\xce\x78\x47\x22",
+ .ksize = 1088,
+ .plaintext = "\x8e\xb0\x4c\xde\x9c\x4a\x04\x5a"
+ "\xf6\xa9\x7f\x45\x25\xa5\x7b\x3a"
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+ "\x7f\x92\xbc\xbf\x4e\x39\x4d\xdd"
+ "\x74\xd1\xb7\xc0\x5a\x34\xb7\xae"
+ "\x76\x65\x2e\xbc\x36\xb9\x04\x95"
+ "\x42\xe9\x6f\xca\x78\xb3\x72\x07"
+ "\xa3\xba\x02\x94\x67\x4c\xb1\xd7"
+ "\xe9\x30\x0d\xf0\x3b\xb8\x10\x6d"
+ "\xea\x2b\x21\xbf\x74\x59\x82\x97"
+ "\x85\xaa\xf1\xd7\x54\x39\xeb\x05"
+ "\xbd\xf3\x40\xa0\x97\xe6\x74\xfe"
+ "\xb4\x82\x5b\xb1\x36\xcb\xe8\x0d"
+ "\xce\x14\xd9\xdf\xf1\x94\x22\xcd"
+ "\xd6\x00\xba\x04\x4c\x05\x0c\xc0"
+ "\xd1\x5a\xeb\x52\xd5\xa8\x8e\xc8"
+ "\x97\xa1\xaa\xc1\xea\xc1\xbe\x7c"
+ "\x36\xb3\x36\xa0\xc6\x76\x66\xc5"
+ "\xe2\xaf\xd6\x5c\xe2\xdb\x2c\xb3"
+ "\x6c\xb9\x99\x7f\xff\x9f\x03\x24"
+ "\xe1\x51\x44\x66\xd8\x0c\x5d\x7f"
+ "\x5c\x85\x22\x2a\xcf\x6d\x79\x28"
+ "\xab\x98\x01\x72\xfe\x80\x87\x5f"
+ "\x46\xba\xef\x81\x24\xee\xbf\xb0"
+ "\x24\x74\xa3\x65\x97\x12\xc4\xaf"
+ "\x8b\xa0\x39\xda\x8a\x7e\x74\x6e"
+ "\x1b\x42\xb4\x44\x37\xfc\x59\xfd"
+ "\x86\xed\xfb\x8c\x66\x33\xda\x63"
+ "\x75\xeb\xe1\xa4\x85\x4f\x50\x8f"
+ "\x83\x66\x0d\xd3\x37\xfa\xe6\x9c"
+ "\x4f\x30\x87\x35\x18\xe3\x0b\xb7"
+ "\x6e\x64\x54\xcd\x70\xb3\xde\x54"
+ "\xb7\x1d\xe6\x4c\x4d\x55\x12\x12"
+ "\xaf\x5f\x7f\x5e\xee\x9d\xe8\x8e"
+ "\x32\x9d\x4e\x75\xeb\xc6\xdd\xaa"
+ "\x48\x82\xa4\x3f\x3c\xd7\xd3\xa8"
+ "\x63\x9e\x64\xfe\xe3\x97\x00\x62"
+ "\xe5\x40\x5d\xc3\xad\x72\xe1\x28"
+ "\x18\x50\xb7\x75\xef\xcd\x23\xbf"
+ "\x3f\xc0\x51\x36\xf8\x41\xc3\x08"
+ "\xcb\xf1\x8d\x38\x34\xbd\x48\x45"
+ "\x75\xed\xbc\x65\x7b\xb5\x0c\x9b"
+ "\xd7\x67\x7d\x27\xb4\xc4\x80\xd7"
+ "\xa9\xb9\xc7\x4a\x97\xaa\xda\xc8"
+ "\x3c\x74\xcf\x36\x8f\xe4\x41\xe3"
+ "\xd4\xd3\x26\xa7\xf3\x23\x9d\x8f"
+ "\x6c\x20\x05\x32\x3e\xe0\xc3\xc8"
+ "\x56\x3f\xa7\x09\xb7\xfb\xc7\xf7"
+ "\xbe\x2a\xdd\x0f\x06\x7b\x0d\xdd"
+ "\xb0\xb4\x86\x17\xfd\xb9\x04\xe5"
+ "\xc0\x64\x5d\xad\x2a\x36\x38\xdb"
+ "\x24\xaf\x5b\xff\xca\xf9\x41\xe8"
+ "\xf9\x2f\x1e\x5e\xf9\xf5\xd5\xf2"
+ "\xb2\x88\xca\xc9\xa1\x31\xe2\xe8"
+ "\x10\x95\x65\xbf\xf1\x11\x61\x7a"
+ "\x30\x1a\x54\x90\xea\xd2\x30\xf6"
+ "\xa5\xad\x60\xf9\x4d\x84\x21\x1b"
+ "\xe4\x42\x22\xc8\x12\x4b\xb0\x58"
+ "\x3e\x9c\x2d\x32\x95\x0a\x8e\xb0"
+ "\x0a\x7e\x77\x2f\xe8\x97\x31\x6a"
+ "\xf5\x59\xb4\x26\xe6\x37\x12\xc9"
+ "\xcb\xa0\x58\x33\x6f\xd5\x55\x55"
+ "\x3c\xa1\x33\xb1\x0b\x7e\x2e\xb4"
+ "\x43\x2a\x84\x39\xf0\x9c\xf4\x69"
+ "\x4f\x1e\x79\xa6\x15\x1b\x87\xbb"
+ "\xdb\x9b\xe0\xf1\x0b\xba\xe3\x6e"
+ "\xcc\x2f\x49\x19\x22\x29\xfc\x71"
+ "\xbb\x77\x38\x18\x61\xaf\x85\x76"
+ "\xeb\xd1\x09\xcc\x86\x04\x20\x9a"
+ "\x66\x53\x2f\x44\x8b\xc6\xa3\xd2"
+ "\x5f\xc7\x79\x82\x66\xa8\x6e\x75"
+ "\x7d\x94\xd1\x86\x75\x0f\xa5\x4f"
+ "\x3c\x7a\x33\xce\xd1\x6e\x9d\x7b"
+ "\x1f\x91\x37\xb8\x37\x80\xfb\xe0"
+ "\x52\x26\xd0\x9a\xd4\x48\x02\x41"
+ "\x05\xe3\x5a\x94\xf1\x65\x61\x19"
+ "\xb8\x88\x4e\x2b\xea\xba\x8b\x58"
+ "\x8b\x42\x01\x00\xa8\xfe\x00\x5c"
+ "\xfe\x1c\xee\x31\x15\x69\xfa\xb3"
+ "\x9b\x5f\x22\x8e\x0d\x2c\xe3\xa5"
+ "\x21\xb9\x99\x8a\x8e\x94\x5a\xef"
+ "\x13\x3e\x99\x96\x79\x6e\xd5\x42"
+ "\x36\x03\xa9\xe2\xca\x65\x4e\x8a"
+ "\x8a\x30\xd2\x7d\x74\xe7\xf0\xaa"
+ "\x23\x26\xdd\xcb\x82\x39\xfc\x9d"
+ "\x51\x76\x21\x80\xa2\xbe\x93\x03"
+ "\x47\xb0\xc1\xb6\xdc\x63\xfd\x9f"
+ "\xca\x9d\xa5\xca\x27\x85\xe2\xd8"
+ "\x15\x5b\x7e\x14\x7a\xc4\x89\xcc"
+ "\x74\x14\x4b\x46\xd2\xce\xac\x39"
+ "\x6b\x6a\x5a\xa4\x0e\xe3\x7b\x15"
+ "\x94\x4b\x0f\x74\xcb\x0c\x7f\xa9"
+ "\xbe\x09\x39\xa3\xdd\x56\x5c\xc7"
+ "\x99\x56\x65\x39\xf4\x0b\x7d\x87"
+ "\xec\xaa\xe3\x4d\x22\x65\x39\x4e",
+ .psize = 1024,
+ .digest = "\x64\x3a\xbc\xc3\x3f\x74\x40\x51"
+ "\x6e\x56\x01\x1a\x51\xec\x36\xde",
+ .np = 8,
+ .tap = { 64, 203, 267, 28, 263, 62, 54, 83 },
+ }, {
+ .key = "\x1b\x82\x2e\x1b\x17\x23\xb9\x6d"
+ "\xdc\x9c\xda\x99\x07\xe3\x5f\xd8"
+ "\xd2\xf8\x43\x80\x8d\x86\x7d\x80"
+ "\x1a\xd0\xcc\x13\xb9\x11\x05\x3f"
+ "\x7e\xcf\x7e\x80\x0e\xd8\x25\x48"
+ "\x8b\xaa\x63\x83\x92\xd0\x72\xf5"
+ "\x4f\x67\x7e\x50\x18\x25\xa4\xd1"
+ "\xe0\x7e\x1e\xba\xd8\xa7\x6e\xdb"
+ "\x1a\xcc\x0d\xfe\x9f\x6d\x22\x35"
+ "\xe1\xe6\xe0\xa8\x7b\x9c\xb1\x66"
+ "\xa3\xf8\xff\x4d\x90\x84\x28\xbc"
+ "\xdc\x19\xc7\x91\x49\xfc\xf6\x33"
+ "\xc9\x6e\x65\x7f\x28\x6f\x68\x2e"
+ "\xdf\x1a\x75\xe9\xc2\x0c\x96\xb9"
+ "\x31\x22\xc4\x07\xc6\x0a\x2f\xfd"
+ "\x36\x06\x5f\x5c\xc5\xb1\x3a\xf4"
+ "\x5e\x48\xa4\x45\x2b\x88\xa7\xee"
+ "\xa9\x8b\x52\xcc\x99\xd9\x2f\xb8"
+ "\xa4\x58\x0a\x13\xeb\x71\x5a\xfa"
+ "\xe5\x5e\xbe\xf2\x64\xad\x75\xbc"
+ "\x0b\x5b\x34\x13\x3b\x23\x13\x9a"
+ "\x69\x30\x1e\x9a\xb8\x03\xb8\x8b"
+ "\x3e\x46\x18\x6d\x38\xd9\xb3\xd8"
+ "\xbf\xf1\xd0\x28\xe6\x51\x57\x80"
+ "\x5e\x99\xfb\xd0\xce\x1e\x83\xf7"
+ "\xe9\x07\x5a\x63\xa9\xef\xce\xa5"
+ "\xfb\x3f\x37\x17\xfc\x0b\x37\x0e"
+ "\xbb\x4b\x21\x62\xb7\x83\x0e\xa9"
+ "\x9e\xb0\xc4\xad\x47\xbe\x35\xe7"
+ "\x51\xb2\xf2\xac\x2b\x65\x7b\x48"
+ "\xe3\x3f\x5f\xb6\x09\x04\x0c\x58"
+ "\xce\x99\xa9\x15\x2f\x4e\xc1\xf2"
+ "\x24\x48\xc0\xd8\x6c\xd3\x76\x17"
+ "\x83\x5d\xe6\xe3\xfd\x01\x8e\xf7"
+ "\x42\xa5\x04\x29\x30\xdf\xf9\x00"
+ "\x4a\xdc\x71\x22\x1a\x33\x15\xb6"
+ "\xd7\x72\xfb\x9a\xb8\xeb\x2b\x38"
+ "\xea\xa8\x61\xa8\x90\x11\x9d\x73"
+ "\x2e\x6c\xce\x81\x54\x5a\x9f\xcd"
+ "\xcf\xd5\xbd\x26\x5d\x66\xdb\xfb"
+ "\xdc\x1e\x7c\x10\xfe\x58\x82\x10"
+ "\x16\x24\x01\xce\x67\x55\x51\xd1"
+ "\xdd\x6b\x44\xa3\x20\x8e\xa9\xa6"
+ "\x06\xa8\x29\x77\x6e\x00\x38\x5b"
+ "\xde\x4d\x58\xd8\x1f\x34\xdf\xf9"
+ "\x2c\xac\x3e\xad\xfb\x92\x0d\x72"
+ "\x39\xa4\xac\x44\x10\xc0\x43\xc4"
+ "\xa4\x77\x3b\xfc\xc4\x0d\x37\xd3"
+ "\x05\x84\xda\x53\x71\xf8\x80\xd3"
+ "\x34\x44\xdb\x09\xb4\x2b\x8e\xe3"
+ "\x00\x75\x50\x9e\x43\x22\x00\x0b"
+ "\x7c\x70\xab\xd4\x41\xf1\x93\xcd"
+ "\x25\x2d\x84\x74\xb5\xf2\x92\xcd"
+ "\x0a\x28\xea\x9a\x49\x02\x96\xcb"
+ "\x85\x9e\x2f\x33\x03\x86\x1d\xdc"
+ "\x1d\x31\xd5\xfc\x9d\xaa\xc5\xe9"
+ "\x9a\xc4\x57\xf5\x35\xed\xf4\x4b"
+ "\x3d\x34\xc2\x29\x13\x86\x36\x42"
+ "\x5d\xbf\x90\x86\x13\x77\xe5\xc3"
+ "\x62\xb4\xfe\x0b\x70\x39\x35\x65"
+ "\x02\xea\xf6\xce\x57\x0c\xbb\x74"
+ "\x29\xe3\xfd\x60\x90\xfd\x10\x38"
+ "\xd5\x4e\x86\xbd\x37\x70\xf0\x97"
+ "\xa6\xab\x3b\x83\x64\x52\xca\x66"
+ "\x2f\xf9\xa4\xca\x3a\x55\x6b\xb0"
+ "\xe8\x3a\x34\xdb\x9e\x48\x50\x2f"
+ "\x3b\xef\xfd\x08\x2d\x5f\xc1\x37"
+ "\x5d\xbe\x73\xe4\xd8\xe9\xac\xca"
+ "\x8a\xaa\x48\x7c\x5c\xf4\xa6\x96"
+ "\x5f\xfa\x70\xa6\xb7\x8b\x50\xcb"
+ "\xa6\xf5\xa9\xbd\x7b\x75\x4c\x22"
+ "\x0b\x19\x40\x2e\xc9\x39\x39\x32"
+ "\x83\x03\xa8\xa4\x98\xe6\x8e\x16"
+ "\xb9\xde\x08\xc5\xfc\xbf\xad\x39"
+ "\xa8\xc7\x93\x6c\x6f\x23\xaf\xc1"
+ "\xab\xe1\xdf\xbb\x39\xae\x93\x29"
+ "\x0e\x7d\x80\x8d\x3e\x65\xf3\xfd"
+ "\x96\x06\x65\x90\xa1\x28\x64\x4b"
+ "\x69\xf9\xa8\x84\x27\x50\xfc\x87"
+ "\xf7\xbf\x55\x8e\x56\x13\x58\x7b"
+ "\x85\xb4\x6a\x72\x0f\x40\xf1\x4f"
+ "\x83\x81\x1f\x76\xde\x15\x64\x7a"
+ "\x7a\x80\xe4\xc7\x5e\x63\x01\x91"
+ "\xd7\x6b\xea\x0b\x9b\xa2\x99\x3b"
+ "\x6c\x88\xd8\xfd\x59\x3c\x8d\x22"
+ "\x86\x56\xbe\xab\xa1\x37\x08\x01"
+ "\x50\x85\x69\x29\xee\x9f\xdf\x21"
+ "\x3e\x20\x20\xf5\xb0\xbb\x6b\xd0"
+ "\x9c\x41\x38\xec\x54\x6f\x2d\xbd"
+ "\x0f\xe1\xbd\xf1\x2b\x6e\x60\x56"
+ "\x29\xe5\x7a\x70\x1c\xe2\xfc\x97"
+ "\x82\x68\x67\xd9\x3d\x1f\xfb\xd8"
+ "\x07\x9f\xbf\x96\x74\xba\x6a\x0e"
+ "\x10\x48\x20\xd8\x13\x1e\xb5\x44"
+ "\xf2\xcc\xb1\x8b\xfb\xbb\xec\xd7"
+ "\x37\x70\x1f\x7c\x55\xd2\x4b\xb9"
+ "\xfd\x70\x5e\xa3\x91\x73\x63\x52"
+ "\x13\x47\x5a\x06\xfb\x01\x67\xa5"
+ "\xc0\xd0\x49\x19\x56\x66\x9a\x77"
+ "\x64\xaf\x8c\x25\x91\x52\x87\x0e"
+ "\x18\xf3\x5f\x97\xfd\x71\x13\xf8"
+ "\x05\xa5\x39\xcc\x65\xd3\xcc\x63"
+ "\x5b\xdb\x5f\x7e\x5f\x6e\xad\xc4"
+ "\xf4\xa0\xc5\xc2\x2b\x4d\x97\x38"
+ "\x4f\xbc\xfa\x33\x17\xb4\x47\xb9"
+ "\x43\x24\x15\x8d\xd2\xed\x80\x68"
+ "\x84\xdb\x04\x80\xca\x5e\x6a\x35"
+ "\x2c\x2c\xe7\xc5\x03\x5f\x54\xb0"
+ "\x5e\x4f\x1d\x40\x54\x3d\x78\x9a"
+ "\xac\xda\x80\x27\x4d\x15\x4c\x1a"
+ "\x6e\x80\xc9\xc4\x3b\x84\x0e\xd9"
+ "\x2e\x93\x01\x8c\xc3\xc8\x91\x4b"
+ "\xb3\xaa\x07\x04\x68\x5b\x93\xa5"
+ "\xe7\xc4\x9d\xe7\x07\xee\xf5\x3b"
+ "\x40\x89\xcc\x60\x34\x9d\xb4\x06"
+ "\x1b\xef\x92\xe6\xc1\x2a\x7d\x0f"
+ "\x81\xaa\x56\xe3\xd7\xed\xa7\xd4"
+ "\xa7\x3a\x49\xc4\xad\x81\x5c\x83"
+ "\x55\x8e\x91\x54\xb7\x7d\x65\xa5"
+ "\x06\x16\xd5\x9a\x16\xc1\xb0\xa2"
+ "\x06\xd8\x98\x47\x73\x7e\x73\xa0"
+ "\xb8\x23\xb1\x52\xbf\x68\x74\x5d"
+ "\x0b\xcb\xfa\x8c\x46\xe3\x24\xe6"
+ "\xab\xd4\x69\x8d\x8c\xf2\x8a\x59"
+ "\xbe\x48\x46\x50\x8c\x9a\xe8\xe3"
+ "\x31\x55\x0a\x06\xed\x4f\xf8\xb7"
+ "\x4f\xe3\x85\x17\x30\xbd\xd5\x20"
+ "\xe7\x5b\xb2\x32\xcf\x6b\x16\x44"
+ "\xd2\xf5\x7e\xd7\xd1\x2f\xee\x64"
+ "\x3e\x9d\x10\xef\x27\x35\x43\x64"
+ "\x67\xfb\x7a\x7b\xe0\x62\x31\x9a"
+ "\x4d\xdf\xa5\xab\xc0\x20\xbb\x01"
+ "\xe9\x7b\x54\xf1\xde\xb2\x79\x50"
+ "\x6c\x4b\x91\xdb\x7f\xbb\x50\xc1"
+ "\x55\x44\x38\x9a\xe0\x9f\xe8\x29"
+ "\x6f\x15\xf8\x4e\xa6\xec\xa0\x60",
+ .ksize = 1088,
+ .plaintext = "\x15\x68\x9e\x2f\xad\x15\x52\xdf"
+ "\xf0\x42\x62\x24\x2a\x2d\xea\xbf"
+ "\xc7\xf3\xb4\x1a\xf5\xed\xb2\x08"
+ "\x15\x60\x1c\x00\x77\xbf\x0b\x0e"
+ "\xb7\x2c\xcf\x32\x3a\xc7\x01\x77"
+ "\xef\xa6\x75\xd0\x29\xc7\x68\x20"
+ "\xb2\x92\x25\xbf\x12\x34\xe9\xa4"
+ "\xfd\x32\x7b\x3f\x7c\xbd\xa5\x02"
+ "\x38\x41\xde\xc9\xc1\x09\xd9\xfc"
+ "\x6e\x78\x22\x83\x18\xf7\x50\x8d"
+ "\x8f\x9c\x2d\x02\xa5\x30\xac\xff"
+ "\xea\x63\x2e\x80\x37\x83\xb0\x58"
+ "\xda\x2f\xef\x21\x55\xba\x7b\xb1"
+ "\xb6\xed\xf5\xd2\x4d\xaa\x8c\xa9"
+ "\xdd\xdb\x0f\xb4\xce\xc1\x9a\xb1"
+ "\xc1\xdc\xbd\xab\x86\xc2\xdf\x0b"
+ "\xe1\x2c\xf9\xbe\xf6\xd8\xda\x62"
+ "\x72\xdd\x98\x09\x52\xc0\xc4\xb6"
+ "\x7b\x17\x5c\xf5\xd8\x4b\x88\xd6"
+ "\x6b\xbf\x84\x4a\x3f\xf5\x4d\xd2"
+ "\x94\xe2\x9c\xff\xc7\x3c\xd9\xc8"
+ "\x37\x38\xbc\x8c\xf3\xe7\xb7\xd0"
+ "\x1d\x78\xc4\x39\x07\xc8\x5e\x79"
+ "\xb6\x5a\x90\x5b\x6e\x97\xc9\xd4"
+ "\x82\x9c\xf3\x83\x7a\xe7\x97\xfc"
+ "\x1d\xbb\xef\xdb\xce\xe0\x82\xad"
+ "\xca\x07\x6c\x54\x62\x6f\x81\xe6"
+ "\x7a\x5a\x96\x6e\x80\x3a\xa2\x37"
+ "\x6f\xc6\xa4\x29\xc3\x9e\x19\x94"
+ "\x9f\xb0\x3e\x38\xfb\x3c\x2b\x7d"
+ "\xaa\xb8\x74\xda\x54\x23\x51\x12"
+ "\x4b\x96\x36\x8f\x91\x4f\x19\x37"
+ "\x83\xc9\xdd\xc7\x1a\x32\x2d\xab"
+ "\xc7\x89\xe2\x07\x47\x6c\xe8\xa6"
+ "\x70\x6b\x8e\x0c\xda\x5c\x6a\x59"
+ "\x27\x33\x0e\xe1\xe1\x20\xe8\xc8"
+ "\xae\xdc\xd0\xe3\x6d\xa8\xa6\x06"
+ "\x41\xb4\xd4\xd4\xcf\x91\x3e\x06"
+ "\xb0\x9a\xf7\xf1\xaa\xa6\x23\x92"
+ "\x10\x86\xf0\x94\xd1\x7c\x2e\x07"
+ "\x30\xfb\xc5\xd8\xf3\x12\xa9\xe8"
+ "\x22\x1c\x97\x1a\xad\x96\xb0\xa1"
+ "\x72\x6a\x6b\xb4\xfd\xf7\xe8\xfa"
+ "\xe2\x74\xd8\x65\x8d\x35\x17\x4b"
+ "\x00\x23\x5c\x8c\x70\xad\x71\xa2"
+ "\xca\xc5\x6c\x59\xbf\xb4\xc0\x6d"
+ "\x86\x98\x3e\x19\x5a\x90\x92\xb1"
+ "\x66\x57\x6a\x91\x68\x7c\xbc\xf3"
+ "\xf1\xdb\x94\xf8\x48\xf1\x36\xd8"
+ "\x78\xac\x1c\xa9\xcc\xd6\x27\xba"
+ "\x91\x54\x22\xf5\xe6\x05\x3f\xcc"
+ "\xc2\x8f\x2c\x3b\x2b\xc3\x2b\x2b"
+ "\x3b\xb8\xb6\x29\xb7\x2f\x94\xb6"
+ "\x7b\xfc\x94\x3e\xd0\x7a\x41\x59"
+ "\x7b\x1f\x9a\x09\xa6\xed\x4a\x82"
+ "\x9d\x34\x1c\xbd\x4e\x1c\x3a\x66"
+ "\x80\x74\x0e\x9a\x4f\x55\x54\x47"
+ "\x16\xba\x2a\x0a\x03\x35\x99\xa3"
+ "\x5c\x63\x8d\xa2\x72\x8b\x17\x15"
+ "\x68\x39\x73\xeb\xec\xf2\xe8\xf5"
+ "\x95\x32\x27\xd6\xc4\xfe\xb0\x51"
+ "\xd5\x0c\x50\xc5\xcd\x6d\x16\xb3"
+ "\xa3\x1e\x95\x69\xad\x78\x95\x06"
+ "\xb9\x46\xf2\x6d\x24\x5a\x99\x76"
+ "\x73\x6a\x91\xa6\xac\x12\xe1\x28"
+ "\x79\xbc\x08\x4e\x97\x00\x98\x63"
+ "\x07\x1c\x4e\xd1\x68\xf3\xb3\x81"
+ "\xa8\xa6\x5f\xf1\x01\xc9\xc1\xaf"
+ "\x3a\x96\xf9\x9d\xb5\x5a\x5f\x8f"
+ "\x7e\xc1\x7e\x77\x0a\x40\xc8\x8e"
+ "\xfc\x0e\xed\xe1\x0d\xb0\xe5\x5e"
+ "\x5e\x6f\xf5\x7f\xab\x33\x7d\xcd"
+ "\xf0\x09\x4b\xb2\x11\x37\xdc\x65"
+ "\x97\x32\x62\x71\x3a\x29\x54\xb9"
+ "\xc7\xa4\xbf\x75\x0f\xf9\x40\xa9"
+ "\x8d\xd7\x8b\xa7\xe0\x9a\xbe\x15"
+ "\xc6\xda\xd8\x00\x14\x69\x1a\xaf"
+ "\x5f\x79\xc3\xf5\xbb\x6c\x2a\x9d"
+ "\xdd\x3c\x5f\x97\x21\xe1\x3a\x03"
+ "\x84\x6a\xe9\x76\x11\x1f\xd3\xd5"
+ "\xf0\x54\x20\x4d\xc2\x91\xc3\xa4"
+ "\x36\x25\xbe\x1b\x2a\x06\xb7\xf3"
+ "\xd1\xd0\x55\x29\x81\x4c\x83\xa3"
+ "\xa6\x84\x1e\x5c\xd1\xd0\x6c\x90"
+ "\xa4\x11\xf0\xd7\x63\x6a\x48\x05"
+ "\xbc\x48\x18\x53\xcd\xb0\x8d\xdb"
+ "\xdc\xfe\x55\x11\x5c\x51\xb3\xab"
+ "\xab\x63\x3e\x31\x5a\x8b\x93\x63"
+ "\x34\xa9\xba\x2b\x69\x1a\xc0\xe3"
+ "\xcb\x41\xbc\xd7\xf5\x7f\x82\x3e"
+ "\x01\xa3\x3c\x72\xf4\xfe\xdf\xbe"
+ "\xb1\x67\x17\x2b\x37\x60\x0d\xca"
+ "\x6f\xc3\x94\x2c\xd2\x92\x6d\x9d"
+ "\x75\x18\x77\xaa\x29\x38\x96\xed"
+ "\x0e\x20\x70\x92\xd5\xd0\xb4\x00"
+ "\xc0\x31\xf2\xc9\x43\x0e\x75\x1d"
+ "\x4b\x64\xf2\x1f\xf2\x29\x6c\x7b"
+ "\x7f\xec\x59\x7d\x8c\x0d\xd4\xd3"
+ "\xac\x53\x4c\xa3\xde\x42\x92\x95"
+ "\x6d\xa3\x4f\xd0\xe6\x3d\xe7\xec"
+ "\x7a\x4d\x68\xf1\xfe\x67\x66\x09"
+ "\x83\x22\xb1\x98\x43\x8c\xab\xb8"
+ "\x45\xe6\x6d\xdf\x5e\x50\x71\xce"
+ "\xf5\x4e\x40\x93\x2b\xfa\x86\x0e"
+ "\xe8\x30\xbd\x82\xcc\x1c\x9c\x5f"
+ "\xad\xfd\x08\x31\xbe\x52\xe7\xe6"
+ "\xf2\x06\x01\x62\x25\x15\x99\x74"
+ "\x33\x51\x52\x57\x3f\x57\x87\x61"
+ "\xb9\x7f\x29\x3d\xcd\x92\x5e\xa6"
+ "\x5c\x3b\xf1\xed\x5f\xeb\x82\xed"
+ "\x56\x7b\x61\xe7\xfd\x02\x47\x0e"
+ "\x2a\x15\xa4\xce\x43\x86\x9b\xe1"
+ "\x2b\x4c\x2a\xd9\x42\x97\xf7\x9a"
+ "\xe5\x47\x46\x48\xd3\x55\x6f\x4d"
+ "\xd9\xeb\x4b\xdd\x7b\x21\x2f\xb3"
+ "\xa8\x36\x28\xdf\xca\xf1\xf6\xd9"
+ "\x10\xf6\x1c\xfd\x2e\x0c\x27\xe0"
+ "\x01\xb3\xff\x6d\x47\x08\x4d\xd4"
+ "\x00\x25\xee\x55\x4a\xe9\xe8\x5b"
+ "\xd8\xf7\x56\x12\xd4\x50\xb2\xe5"
+ "\x51\x6f\x34\x63\x69\xd2\x4e\x96"
+ "\x4e\xbc\x79\xbf\x18\xae\xc6\x13"
+ "\x80\x92\x77\xb0\xb4\x0f\x29\x94"
+ "\x6f\x4c\xbb\x53\x11\x36\xc3\x9f"
+ "\x42\x8e\x96\x8a\x91\xc8\xe9\xfc"
+ "\xfe\xbf\x7c\x2d\x6f\xf9\xb8\x44"
+ "\x89\x1b\x09\x53\x0a\x2a\x92\xc3"
+ "\x54\x7a\x3a\xf9\xe2\xe4\x75\x87"
+ "\xa0\x5e\x4b\x03\x7a\x0d\x8a\xf4"
+ "\x55\x59\x94\x2b\x63\x96\x0e\xf5",
+ .psize = 1040,
+ .digest = "\xb5\xb9\x08\xb3\x24\x3e\x03\xf0"
+ "\xd6\x0b\x57\xbc\x0a\x6d\x89\x59",
+ }, {
+ .key = "\xf6\x34\x42\x71\x35\x52\x8b\x58"
+ "\x02\x3a\x8e\x4a\x8d\x41\x13\xe9"
+ "\x7f\xba\xb9\x55\x9d\x73\x4d\xf8"
+ "\x3f\x5d\x73\x15\xff\xd3\x9e\x7f"
+ "\x20\x2a\x6a\xa8\xd1\xf0\x8f\x12"
+ "\x6b\x02\xd8\x6c\xde\xba\x80\x22"
+ "\x19\x37\xc8\xd0\x4e\x89\x17\x7c"
+ "\x7c\xdd\x88\xfd\x41\xc0\x04\xb7"
+ "\x1d\xac\x19\xe3\x20\xc7\x16\xcf"
+ "\x58\xee\x1d\x7a\x61\x69\xa9\x12"
+ "\x4b\xef\x4f\xb6\x38\xdd\x78\xf8"
+ "\x28\xee\x70\x08\xc7\x7c\xcc\xc8"
+ "\x1e\x41\xf5\x80\x86\x70\xd0\xf0"
+ "\xa3\x87\x6b\x0a\x00\xd2\x41\x28"
+ "\x74\x26\xf1\x24\xf3\xd0\x28\x77"
+ "\xd7\xcd\xf6\x2d\x61\xf4\xa2\x13"
+ "\x77\xb4\x6f\xa0\xf4\xfb\xd6\xb5"
+ "\x38\x9d\x5a\x0c\x51\xaf\xad\x63"
+ "\x27\x67\x8c\x01\xea\x42\x1a\x66"
+ "\xda\x16\x7c\x3c\x30\x0c\x66\x53"
+ "\x1c\x88\xa4\x5c\xb2\xe3\x78\x0a"
+ "\x13\x05\x6d\xe2\xaf\xb3\xe4\x75"
+ "\x00\x99\x58\xee\x76\x09\x64\xaa"
+ "\xbb\x2e\xb1\x81\xec\xd8\x0e\xd3"
+ "\x0c\x33\x5d\xb7\x98\xef\x36\xb6"
+ "\xd2\x65\x69\x41\x70\x12\xdc\x25"
+ "\x41\x03\x99\x81\x41\x19\x62\x13"
+ "\xd1\x0a\x29\xc5\x8c\xe0\x4c\xf3"
+ "\xd6\xef\x4c\xf4\x1d\x83\x2e\x6d"
+ "\x8e\x14\x87\xed\x80\xe0\xaa\xd3"
+ "\x08\x04\x73\x1a\x84\x40\xf5\x64"
+ "\xbd\x61\x32\x65\x40\x42\xfb\xb0"
+ "\x40\xf6\x40\x8d\xc7\x7f\x14\xd0"
+ "\x83\x99\xaa\x36\x7e\x60\xc6\xbf"
+ "\x13\x8a\xf9\x21\xe4\x7e\x68\x87"
+ "\xf3\x33\x86\xb4\xe0\x23\x7e\x0a"
+ "\x21\xb1\xf5\xad\x67\x3c\x9c\x9d"
+ "\x09\xab\xaf\x5f\xba\xe0\xd0\x82"
+ "\x48\x22\x70\xb5\x6d\x53\xd6\x0e"
+ "\xde\x64\x92\x41\xb0\xd3\xfb\xda"
+ "\x21\xfe\xab\xea\x20\xc4\x03\x58"
+ "\x18\x2e\x7d\x2f\x03\xa9\x47\x66"
+ "\xdf\x7b\xa4\x6b\x34\x6b\x55\x9c"
+ "\x4f\xd7\x9c\x47\xfb\xa9\x42\xec"
+ "\x5a\x12\xfd\xfe\x76\xa0\x92\x9d"
+ "\xfe\x1e\x16\xdd\x24\x2a\xe4\x27"
+ "\xd5\xa9\xf2\x05\x4f\x83\xa2\xaf"
+ "\xfe\xee\x83\x7a\xad\xde\xdf\x9a"
+ "\x80\xd5\x81\x14\x93\x16\x7e\x46"
+ "\x47\xc2\x14\xef\x49\x6e\xb9\xdb"
+ "\x40\xe8\x06\x6f\x9c\x2a\xfd\x62"
+ "\x06\x46\xfd\x15\x1d\x36\x61\x6f"
+ "\x77\x77\x5e\x64\xce\x78\x1b\x85"
+ "\xbf\x50\x9a\xfd\x67\xa6\x1a\x65"
+ "\xad\x5b\x33\x30\xf1\x71\xaa\xd9"
+ "\x23\x0d\x92\x24\x5f\xae\x57\xb0"
+ "\x24\x37\x0a\x94\x12\xfb\xb5\xb1"
+ "\xd3\xb8\x1d\x12\x29\xb0\x80\x24"
+ "\x2d\x47\x9f\x96\x1f\x95\xf1\xb1"
+ "\xda\x35\xf6\x29\xe0\xe1\x23\x96"
+ "\xc7\xe8\x22\x9b\x7c\xac\xf9\x41"
+ "\x39\x01\xe5\x73\x15\x5e\x99\xec"
+ "\xb4\xc1\xf4\xe7\xa7\x97\x6a\xd5"
+ "\x90\x9a\xa0\x1d\xf3\x5a\x8b\x5f"
+ "\xdf\x01\x52\xa4\x93\x31\x97\xb0"
+ "\x93\x24\xb5\xbc\xb2\x14\x24\x98"
+ "\x4a\x8f\x19\x85\xc3\x2d\x0f\x74"
+ "\x9d\x16\x13\x80\x5e\x59\x62\x62"
+ "\x25\xe0\xd1\x2f\x64\xef\xba\xac"
+ "\xcd\x09\x07\x15\x8a\xcf\x73\xb5"
+ "\x8b\xc9\xd8\x24\xb0\x53\xd5\x6f"
+ "\xe1\x2b\x77\xb1\xc5\xe4\xa7\x0e"
+ "\x18\x45\xab\x36\x03\x59\xa8\xbd"
+ "\x43\xf0\xd8\x2c\x1a\x69\x96\xbb"
+ "\x13\xdf\x6c\x33\x77\xdf\x25\x34"
+ "\x5b\xa5\x5b\x8c\xf9\x51\x05\xd4"
+ "\x8b\x8b\x44\x87\x49\xfc\xa0\x8f"
+ "\x45\x15\x5b\x40\x42\xc4\x09\x92"
+ "\x98\x0c\x4d\xf4\x26\x37\x1b\x13"
+ "\x76\x01\x93\x8d\x4f\xe6\xed\x18"
+ "\xd0\x79\x7b\x3f\x44\x50\xcb\xee"
+ "\xf7\x4a\xc9\x9e\xe0\x96\x74\xa7"
+ "\xe6\x93\xb2\x53\xca\x55\xa8\xdc"
+ "\x1e\x68\x07\x87\xb7\x2e\xc1\x08"
+ "\xb2\xa4\x5b\xaf\xc6\xdb\x5c\x66"
+ "\x41\x1c\x51\xd9\xb0\x07\x00\x0d"
+ "\xf0\x4c\xdc\x93\xde\xa9\x1e\x8e"
+ "\xd3\x22\x62\xd8\x8b\x88\x2c\xea"
+ "\x5e\xf1\x6e\x14\x40\xc7\xbe\xaa"
+ "\x42\x28\xd0\x26\x30\x78\x01\x9b"
+ "\x83\x07\xbc\x94\xc7\x57\xa2\x9f"
+ "\x03\x07\xff\x16\xff\x3c\x6e\x48"
+ "\x0a\xd0\xdd\x4c\xf6\x64\x9a\xf1"
+ "\xcd\x30\x12\x82\x2c\x38\xd3\x26"
+ "\x83\xdb\xab\x3e\xc6\xf8\xe6\xfa"
+ "\x77\x0a\x78\x82\x75\xf8\x63\x51"
+ "\x59\xd0\x8d\x24\x9f\x25\xe6\xa3"
+ "\x4c\xbc\x34\xfc\xe3\x10\xc7\x62"
+ "\xd4\x23\xc8\x3d\xa7\xc6\xa6\x0a"
+ "\x4f\x7e\x29\x9d\x6d\xbe\xb5\xf1"
+ "\xdf\xa4\x53\xfa\xc0\x23\x0f\x37"
+ "\x84\x68\xd0\xb5\xc8\xc6\xae\xf8"
+ "\xb7\x8d\xb3\x16\xfe\x8f\x87\xad"
+ "\xd0\xc1\x08\xee\x12\x1c\x9b\x1d"
+ "\x90\xf8\xd1\x63\xa4\x92\x3c\xf0"
+ "\xc7\x34\xd8\xf1\x14\xed\xa3\xbc"
+ "\x17\x7e\xd4\x62\x42\x54\x57\x2c"
+ "\x3e\x7a\x35\x35\x17\x0f\x0b\x7f"
+ "\x81\xa1\x3f\xd0\xcd\xc8\x3b\x96"
+ "\xe9\xe0\x4a\x04\xe1\xb6\x3c\xa1"
+ "\xd6\xca\xc4\xbd\xb6\xb5\x95\x34"
+ "\x12\x9d\xc5\x96\xf2\xdf\xba\x54"
+ "\x76\xd1\xb2\x6b\x3b\x39\xe0\xb9"
+ "\x18\x62\xfb\xf7\xfc\x12\xf1\x5f"
+ "\x7e\xc7\xe3\x59\x4c\xa6\xc2\x3d"
+ "\x40\x15\xf9\xa3\x95\x64\x4c\x74"
+ "\x8b\x73\x77\x33\x07\xa7\x04\x1d"
+ "\x33\x5a\x7e\x8f\xbd\x86\x01\x4f"
+ "\x3e\xb9\x27\x6f\xe2\x41\xf7\x09"
+ "\x67\xfd\x29\x28\xc5\xe4\xf6\x18"
+ "\x4c\x1b\x49\xb2\x9c\x5b\xf6\x81"
+ "\x4f\xbb\x5c\xcc\x0b\xdf\x84\x23"
+ "\x58\xd6\x28\x34\x93\x3a\x25\x97"
+ "\xdf\xb2\xc3\x9e\x97\x38\x0b\x7d"
+ "\x10\xb3\x54\x35\x23\x8c\x64\xee"
+ "\xf0\xd8\x66\xff\x8b\x22\xd2\x5b"
+ "\x05\x16\x3c\x89\xf7\xb1\x75\xaf"
+ "\xc0\xae\x6a\x4f\x3f\xaf\x9a\xf4"
+ "\xf4\x9a\x24\xd9\x80\x82\xc0\x12"
+ "\xde\x96\xd1\xbe\x15\x0b\x8d\x6a"
+ "\xd7\x12\xe4\x85\x9f\x83\xc9\xc3"
+ "\xff\x0b\xb5\xaf\x3b\xd8\x6d\x67"
+ "\x81\x45\xe6\xac\xec\xc1\x7b\x16"
+ "\x18\x0a\xce\x4b\xc0\x2e\x76\xbc"
+ "\x1b\xfa\xb4\x34\xb8\xfc\x3e\xc8"
+ "\x5d\x90\x71\x6d\x7a\x79\xef\x06",
+ .ksize = 1088,
+ .plaintext = "\xaa\x5d\x54\xcb\xea\x1e\x46\x0f"
+ "\x45\x87\x70\x51\x8a\x66\x7a\x33"
+ "\xb4\x18\xff\xa9\x82\xf9\x45\x4b"
+ "\x93\xae\x2e\x7f\xab\x98\xfe\xbf"
+ "\x01\xee\xe5\xa0\x37\x8f\x57\xa6"
+ "\xb0\x76\x0d\xa4\xd6\x28\x2b\x5d"
+ "\xe1\x03\xd6\x1c\x6f\x34\x0d\xe7"
+ "\x61\x2d\x2e\xe5\xae\x5d\x47\xc7"
+ "\x80\x4b\x18\x8f\xa8\x99\xbc\x28"
+ "\xed\x1d\x9d\x86\x7d\xd7\x41\xd1"
+ "\xe0\x2b\xe1\x8c\x93\x2a\xa7\x80"
+ "\xe1\x07\xa0\xa9\x9f\x8c\x8d\x1a"
+ "\x55\xfc\x6b\x24\x7a\xbd\x3e\x51"
+ "\x68\x4b\x26\x59\xc8\xa7\x16\xd9"
+ "\xb9\x61\x13\xde\x8b\x63\x1c\xf6"
+ "\x60\x01\xfb\x08\xb3\x5b\x0a\xbf"
+ "\x34\x73\xda\x87\x87\x3d\x6f\x97"
+ "\x4a\x0c\xa3\x58\x20\xa2\xc0\x81"
+ "\x5b\x8c\xef\xa9\xc2\x01\x1e\x64"
+ "\x83\x8c\xbc\x03\xb6\xd0\x29\x9f"
+ "\x54\xe2\xce\x8b\xc2\x07\x85\x78"
+ "\x25\x38\x96\x4c\xb4\xbe\x17\x4a"
+ "\x65\xa6\xfa\x52\x9d\x66\x9d\x65"
+ "\x4a\xd1\x01\x01\xf0\xcb\x13\xcc"
+ "\xa5\x82\xf3\xf2\x66\xcd\x3f\x9d"
+ "\xd1\xaa\xe4\x67\xea\xf2\xad\x88"
+ "\x56\x76\xa7\x9b\x59\x3c\xb1\x5d"
+ "\x78\xfd\x69\x79\x74\x78\x43\x26"
+ "\x7b\xde\x3f\xf1\xf5\x4e\x14\xd9"
+ "\x15\xf5\x75\xb5\x2e\x19\xf3\x0c"
+ "\x48\x72\xd6\x71\x6d\x03\x6e\xaa"
+ "\xa7\x08\xf9\xaa\x70\xa3\x0f\x4d"
+ "\x12\x8a\xdd\xe3\x39\x73\x7e\xa7"
+ "\xea\x1f\x6d\x06\x26\x2a\xf2\xc5"
+ "\x52\xb4\xbf\xfd\x52\x0c\x06\x60"
+ "\x90\xd1\xb2\x7b\x56\xae\xac\x58"
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+ "\x2a\x98\x0f\x1b\x5b\x0a\x84\x6c"
+ "\x31\xae\x92\xe2\xd4\xbb\x7f\x59"
+ "\x26\x10\xb9\x89\x37\x68\x26\xbf"
+ "\x41\xc8\x49\xc4\x70\x35\x7d\xff"
+ "\x2d\x7f\xf6\x8a\x93\x68\x8c\x78"
+ "\x0d\x53\xce\x7d\xff\x7d\xfb\xae"
+ "\x13\x1b\x75\xc4\x78\xd7\x71\xd8"
+ "\xea\xd3\xf4\x9d\x95\x64\x8e\xb4"
+ "\xde\xb8\xe4\xa6\x68\xc8\xae\x73"
+ "\x58\xaf\xa8\xb0\x5a\x20\xde\x87"
+ "\x43\xb9\x0f\xe3\xad\x41\x4b\xd5"
+ "\xb7\xad\x16\x00\xa6\xff\xf6\x74"
+ "\xbf\x8c\x9f\xb3\x58\x1b\xb6\x55"
+ "\xa9\x90\x56\x28\xf0\xb5\x13\x4e"
+ "\x9e\xf7\x25\x86\xe0\x07\x7b\x98"
+ "\xd8\x60\x5d\x38\x95\x3c\xe4\x22"
+ "\x16\x2f\xb2\xa2\xaf\xe8\x90\x17"
+ "\xec\x11\x83\x1a\xf4\xa9\x26\xda"
+ "\x39\x72\xf5\x94\x61\x05\x51\xec"
+ "\xa8\x30\x8b\x2c\x13\xd0\x72\xac"
+ "\xb9\xd2\xa0\x4c\x4b\x78\xe8\x6e"
+ "\x04\x85\xe9\x04\x49\x82\x91\xff"
+ "\x89\xe5\xab\x4c\xaa\x37\x03\x12"
+ "\xca\x8b\x74\x10\xfd\x9e\xd9\x7b"
+ "\xcb\xdb\x82\x6e\xce\x2e\x33\x39"
+ "\xce\xd2\x84\x6e\x34\x71\x51\x6e"
+ "\x0d\xd6\x01\x87\xc7\xfa\x0a\xd3"
+ "\xad\x36\xf3\x4c\x9f\x96\x5e\x62"
+ "\x62\x54\xc3\x03\x78\xd6\xab\xdd"
+ "\x89\x73\x55\x25\x30\xf8\xa7\xe6"
+ "\x4f\x11\x0c\x7c\x0a\xa1\x2b\x7b"
+ "\x3d\x0d\xde\x81\xd4\x9d\x0b\xae"
+ "\xdf\x00\xf9\x4c\xb6\x90\x8e\x16"
+ "\xcb\x11\xc8\xd1\x2e\x73\x13\x75"
+ "\x75\x3e\xaa\xf5\xee\x02\xb3\x18"
+ "\xa6\x2d\xf5\x3b\x51\xd1\x1f\x47"
+ "\x6b\x2c\xdb\xc4\x10\xe0\xc8\xba"
+ "\x9d\xac\xb1\x9d\x75\xd5\x41\x0e"
+ "\x7e\xbe\x18\x5b\xa4\x1f\xf8\x22"
+ "\x4c\xc1\x68\xda\x6d\x51\x34\x6c"
+ "\x19\x59\xec\xb5\xb1\xec\xa7\x03"
+ "\xca\x54\x99\x63\x05\x6c\xb1\xac"
+ "\x9c\x31\xd6\xdb\xba\x7b\x14\x12"
+ "\x7a\xc3\x2f\xbf\x8d\xdc\x37\x46"
+ "\xdb\xd2\xbc\xd4\x2f\xab\x30\xd5"
+ "\xed\x34\x99\x8e\x83\x3e\xbe\x4c"
+ "\x86\x79\x58\xe0\x33\x8d\x9a\xb8"
+ "\xa9\xa6\x90\x46\xa2\x02\xb8\xdd"
+ "\xf5\xf9\x1a\x5c\x8c\x01\xaa\x6e"
+ "\xb4\x22\x12\xf5\x0c\x1b\x9b\x7a"
+ "\xc3\x80\xf3\x06\x00\x5f\x30\xd5"
+ "\x06\xdb\x7d\x82\xc2\xd4\x0b\x4c"
+ "\x5f\xe9\xc5\xf5\xdf\x97\x12\xbf"
+ "\x56\xaf\x9b\x69\xcd\xee\x30\xb4"
+ "\xa8\x71\xff\x3e\x7d\x73\x7a\xb4"
+ "\x0d\xa5\x46\x7a\xf3\xf4\x15\x87"
+ "\x5d\x93\x2b\x8c\x37\x64\xb5\xdd"
+ "\x48\xd1\xe5\x8c\xae\xd4\xf1\x76"
+ "\xda\xf4\xba\x9e\x25\x0e\xad\xa3"
+ "\x0d\x08\x7c\xa8\x82\x16\x8d\x90"
+ "\x56\x40\x16\x84\xe7\x22\x53\x3a"
+ "\x58\xbc\xb9\x8f\x33\xc8\xc2\x84"
+ "\x22\xe6\x0d\xe7\xb3\xdc\x5d\xdf"
+ "\xd7\x2a\x36\xe4\x16\x06\x07\xd2"
+ "\x97\x60\xb2\xf5\x5e\x14\xc9\xfd"
+ "\x8b\x05\xd1\xce\xee\x9a\x65\x99"
+ "\xb7\xae\x19\xb7\xc8\xbc\xd5\xa2"
+ "\x7b\x95\xe1\xcc\xba\x0d\xdc\x8a"
+ "\x1d\x59\x52\x50\xaa\x16\x02\x82"
+ "\xdf\x61\x33\x2e\x44\xce\x49\xc7"
+ "\xe5\xc6\x2e\x76\xcf\x80\x52\xf0"
+ "\x3d\x17\x34\x47\x3f\xd3\x80\x48"
+ "\xa2\xba\xd5\xc7\x7b\x02\x28\xdb"
+ "\xac\x44\xc7\x6e\x05\x5c\xc2\x79"
+ "\xb3\x7d\x6a\x47\x77\x66\xf1\x38"
+ "\xf0\xf5\x4f\x27\x1a\x31\xca\x6c"
+ "\x72\x95\x92\x8e\x3f\xb0\xec\x1d"
+ "\xc7\x2a\xff\x73\xee\xdf\x55\x80"
+ "\x93\xd2\xbd\x34\xd3\x9f\x00\x51"
+ "\xfb\x2e\x41\xba\x6c\x5a\x7c\x17"
+ "\x7f\xe6\x70\xac\x8d\x39\x3f\x77"
+ "\xe2\x23\xac\x8f\x72\x4e\xe4\x53"
+ "\xcc\xf1\x1b\xf1\x35\xfe\x52\xa4"
+ "\xd6\xb8\x40\x6b\xc1\xfd\xa0\xa1"
+ "\xf5\x46\x65\xc2\x50\xbb\x43\xe2"
+ "\xd1\x43\x28\x34\x74\xf5\x87\xa0"
+ "\xf2\x5e\x27\x3b\x59\x2b\x3e\x49"
+ "\xdf\x46\xee\xaf\x71\xd7\x32\x36"
+ "\xc7\x14\x0b\x58\x6e\x3e\x2d\x41"
+ "\xfa\x75\x66\x3a\x54\xe0\xb2\xb9"
+ "\xaf\xdd\x04\x80\x15\x19\x3f\x6f"
+ "\xce\x12\xb4\xd8\xe8\x89\x3c\x05"
+ "\x30\xeb\xf3\x3d\xcd\x27\xec\xdc"
+ "\x56\x70\x12\xcf\x78\x2b\x77\xbf"
+ "\x22\xf0\x1b\x17\x9c\xcc\xd6\x1b"
+ "\x2d\x3d\xa0\x3b\xd8\xc9\x70\xa4"
+ "\x7a\x3e\x07\xb9\x06\xc3\xfa\xb0"
+ "\x33\xee\xc1\xd8\xf6\xe0\xf0\xb2"
+ "\x61\x12\x69\xb0\x5f\x28\x99\xda"
+ "\xc3\x61\x48\xfa\x07\x16\x03\xc4"
+ "\xa8\xe1\x3c\xe8\x0e\x64\x15\x30"
+ "\xc1\x9d\x84\x2f\x73\x98\x0e\x3a"
+ "\xf2\x86\x21\xa4\x9e\x1d\xb5\x86"
+ "\x16\xdb\x2b\x9a\x06\x64\x8e\x79"
+ "\x8d\x76\x3e\xc3\xc2\x64\x44\xe3"
+ "\xda\xbc\x1a\x52\xd7\x61\x03\x65"
+ "\x54\x32\x77\x01\xed\x9d\x8a\x43"
+ "\x25\x24\xe3\xc1\xbe\xb8\x2f\xcb"
+ "\x89\x14\x64\xab\xf6\xa0\x6e\x02"
+ "\x57\xe4\x7d\xa9\x4e\x9a\x03\x36"
+ "\xad\xf1\xb1\xfc\x0b\xe6\x79\x51"
+ "\x9f\x81\x77\xc4\x14\x78\x9d\xbf"
+ "\xb6\xd6\xa3\x8c\xba\x0b\x26\xe7"
+ "\xc8\xb9\x5c\xcc\xe1\x5f\xd5\xc6"
+ "\xc4\xca\xc2\xa3\x45\xba\x94\x13"
+ "\xb2\x8f\xc3\x54\x01\x09\xe7\x8b"
+ "\xda\x2a\x0a\x11\x02\x43\xcb\x57"
+ "\xc9\xcc\xb5\x5c\xab\xc4\xec\x54"
+ "\x00\x06\x34\xe1\x6e\x03\x89\x7c"
+ "\xc6\xfb\x6a\xc7\x60\x43\xd6\xc5"
+ "\xb5\x68\x72\x89\x8f\x42\xc3\x74"
+ "\xbd\x25\xaa\x9f\x67\xb5\xdf\x26"
+ "\x20\xe8\xb7\x01\x3c\xe4\x77\xce"
+ "\xc4\x65\xa7\x23\x79\xea\x33\xc7"
+ "\x82\x14\x5c\x82\xf2\x4e\x3d\xf6"
+ "\xc6\x4a\x0e\x29\xbb\xec\x44\xcd"
+ "\x2f\xd1\x4f\x21\x71\xa9\xce\x0f"
+ "\x5c\xf2\x72\x5c\x08\x2e\x21\xd2"
+ "\xc3\x29\x13\xd8\xac\xc3\xda\x13"
+ "\x1a\x9d\xa7\x71\x1d\x27\x1d\x27"
+ "\x1d\xea\xab\x44\x79\xad\xe5\xeb"
+ "\xef\x1f\x22\x0a\x44\x4f\xcb\x87"
+ "\xa7\x58\x71\x0e\x66\xf8\x60\xbf"
+ "\x60\x74\x4a\xb4\xec\x2e\xfe\xd3"
+ "\xf5\xb8\xfe\x46\x08\x50\x99\x6c"
+ "\x66\xa5\xa8\x34\x44\xb5\xe5\xf0"
+ "\xdd\x2c\x67\x4e\x35\x96\x8e\x67"
+ "\x48\x3f\x5f\x37\x44\x60\x51\x2e"
+ "\x14\x91\x5e\x57\xc3\x0e\x79\x77"
+ "\x2f\x03\xf4\xe2\x1c\x72\xbf\x85"
+ "\x5d\xd3\x17\xdf\x6c\xc5\x70\x24"
+ "\x42\xdf\x51\x4e\x2a\xb2\xd2\x5b"
+ "\x9e\x69\x83\x41\x11\xfe\x73\x22"
+ "\xde\x8a\x9e\xd8\x8a\xfb\x20\x38"
+ "\xd8\x47\x6f\xd5\xed\x8f\x41\xfd"
+ "\x13\x7a\x18\x03\x7d\x0f\xcd\x7d"
+ "\xa6\x7d\x31\x9e\xf1\x8f\x30\xa3"
+ "\x8b\x4c\x24\xb7\xf5\x48\xd7\xd9"
+ "\x12\xe7\x84\x97\x5c\x31\x6d\xfb"
+ "\xdf\xf3\xd3\xd1\xd5\x0c\x30\x06"
+ "\x01\x6a\xbc\x6c\x78\x7b\xa6\x50"
+ "\xfa\x0f\x3c\x42\x2d\xa5\xa3\x3b"
+ "\xcf\x62\x50\xff\x71\x6d\xe7\xda"
+ "\x27\xab\xc6\x67\x16\x65\x68\x64"
+ "\xc7\xd5\x5f\x81\xa9\xf6\x65\xb3"
+ "\x5e\x43\x91\x16\xcd\x3d\x55\x37"
+ "\x55\xb3\xf0\x28\xc5\x54\x19\xc0"
+ "\xe0\xd6\x2a\x61\xd4\xc8\x72\x51"
+ "\xe9\xa1\x7b\x48\x21\xad\x44\x09"
+ "\xe4\x01\x61\x3c\x8a\x5b\xf9\xa1"
+ "\x6e\x1b\xdf\xc0\x04\xa8\x8b\xf2"
+ "\x21\xbe\x34\x7b\xfc\xa1\xcd\xc9"
+ "\xa9\x96\xf4\xa4\x4c\xf7\x4e\x8f"
+ "\x84\xcc\xd3\xa8\x92\x77\x8f\x36"
+ "\xe2\x2e\x8c\x33\xe8\x84\xa6\x0c"
+ "\x6c\x8a\xda\x14\x32\xc2\x96\xff"
+ "\xc6\x4a\xc2\x9b\x30\x7f\xd1\x29"
+ "\xc0\xd5\x78\x41\x00\x80\x80\x03"
+ "\x2a\xb1\xde\x26\x03\x48\x49\xee"
+ "\x57\x14\x76\x51\x3c\x36\x5d\x0a"
+ "\x5c\x9f\xe8\xd8\x53\xdb\x4f\xd4"
+ "\x38\xbf\x66\xc9\x75\x12\x18\x75"
+ "\x34\x2d\x93\x22\x96\x51\x24\x6e"
+ "\x4e\xd9\x30\xea\x67\xff\x92\x1c"
+ "\x16\x26\xe9\xb5\x33\xab\x8c\x22"
+ "\x47\xdb\xa0\x2c\x08\xf0\x12\x69"
+ "\x7e\x93\x52\xda\xa5\xe5\xca\xc1"
+ "\x0f\x55\x2a\xbd\x09\x30\x88\x1b"
+ "\x9c\xc6\x9f\xe6\xdb\xa6\x92\xeb"
+ "\xf4\xbd\x5c\xc4\xdb\xc6\x71\x09"
+ "\xab\x5e\x48\x0c\xed\x6f\xda\x8e"
+ "\x8d\x0c\x98\x71\x7d\x10\xd0\x9c"
+ "\x20\x9b\x79\x53\x26\x5d\xb9\x85"
+ "\x8a\x31\xb8\xc5\x1c\x97\xde\x88"
+ "\x61\x55\x7f\x7c\x21\x06\xea\xc4"
+ "\x5f\xaf\xf2\xf0\xd5\x5e\x7d\xb4"
+ "\x6e\xcf\xe9\xae\x1b\x0e\x11\x80"
+ "\xc1\x9a\x74\x7e\x52\x6f\xa0\xb7"
+ "\x24\xcd\x8d\x0a\x11\x40\x63\x72"
+ "\xfa\xe2\xc5\xb3\x94\xef\x29\xa2"
+ "\x1a\x23\x43\x04\x37\x55\x0d\xe9"
+ "\x83\xb2\x29\x51\x49\x64\xa0\xbd"
+ "\xde\x73\xfd\xa5\x7c\x95\x70\x62"
+ "\x58\xdc\xe2\xd0\xbf\x98\xf5\x8a"
+ "\x6a\xfd\xce\xa8\x0e\x42\x2a\xeb"
+ "\xd2\xff\x83\x27\x53\x5c\xa0\x6e"
+ "\x93\xef\xe2\xb9\x5d\x35\xd6\x98"
+ "\xf6\x71\x19\x7a\x54\xa1\xa7\xe8"
+ "\x09\xfe\xf6\x9e\xc7\xbd\x3e\x29"
+ "\xbd\x6b\x17\xf4\xe7\x3e\x10\x5c"
+ "\xc1\xd2\x59\x4f\x4b\x12\x1a\x5b"
+ "\x50\x80\x59\xb9\xec\x13\x66\xa8"
+ "\xd2\x31\x7b\x6a\x61\x22\xdd\x7d"
+ "\x61\xee\x87\x16\x46\x9f\xf9\xc7"
+ "\x41\xee\x74\xf8\xd0\x96\x2c\x76"
+ "\x2a\xac\x7d\x6e\x9f\x0e\x7f\x95"
+ "\xfe\x50\x16\xb2\x23\xca\x62\xd5"
+ "\x68\xcf\x07\x3f\x3f\x97\x85\x2a"
+ "\x0c\x25\x45\xba\xdb\x32\xcb\x83"
+ "\x8c\x4f\xe0\x6d\x9a\x99\xf9\xc9"
+ "\xda\xd4\x19\x31\xc1\x7c\x6d\xd9"
+ "\x9c\x56\xd3\xec\xc1\x81\x4c\xed"
+ "\x28\x9d\x87\xeb\x19\xd7\x1a\x4f"
+ "\x04\x6a\xcb\x1f\xcf\x1f\xa2\x16"
+ "\xfc\x2a\x0d\xa1\x14\x2d\xfa\xc5"
+ "\x5a\xd2\xc5\xf9\x19\x7c\x20\x1f"
+ "\x2d\x10\xc0\x66\x7c\xd9\x2d\xe5"
+ "\x88\x70\x59\xa7\x85\xd5\x2e\x7c"
+ "\x5c\xe3\xb7\x12\xd6\x97\x3f\x29",
+ .psize = 2048,
+ .digest = "\x37\x90\x92\xc2\xeb\x01\x87\xd9"
+ "\x95\xc7\x91\xc3\x17\x8b\x38\x52",
+ }
+};
+
+
/*
* DES test vectors.
*/
@@ -30818,6 +33275,1794 @@ static const struct cipher_testvec chacha20_tv_template[] = {
},
};
+static const struct cipher_testvec xchacha20_tv_template[] = {
+ { /* from libsodium test/default/xchacha20.c */
+ .key = "\x79\xc9\x97\x98\xac\x67\x30\x0b"
+ "\xbb\x27\x04\xc9\x5c\x34\x1e\x32"
+ "\x45\xf3\xdc\xb2\x17\x61\xb9\x8e"
+ "\x52\xff\x45\xb2\x4f\x30\x4f\xc4",
+ .klen = 32,
+ .iv = "\xb3\x3f\xfd\x30\x96\x47\x9b\xcf"
+ "\xbc\x9a\xee\x49\x41\x76\x88\xa0"
+ "\xa2\x55\x4f\x8d\x95\x38\x94\x19"
+ "\x00\x00\x00\x00\x00\x00\x00\x00",
+ .ptext = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00",
+ .ctext = "\xc6\xe9\x75\x81\x60\x08\x3a\xc6"
+ "\x04\xef\x90\xe7\x12\xce\x6e\x75"
+ "\xd7\x79\x75\x90\x74\x4e\x0c\xf0"
+ "\x60\xf0\x13\x73\x9c",
+ .len = 29,
+ }, { /* from libsodium test/default/xchacha20.c */
+ .key = "\x9d\x23\xbd\x41\x49\xcb\x97\x9c"
+ "\xcf\x3c\x5c\x94\xdd\x21\x7e\x98"
+ "\x08\xcb\x0e\x50\xcd\x0f\x67\x81"
+ "\x22\x35\xea\xaf\x60\x1d\x62\x32",
+ .klen = 32,
+ .iv = "\xc0\x47\x54\x82\x66\xb7\xc3\x70"
+ "\xd3\x35\x66\xa2\x42\x5c\xbf\x30"
+ "\xd8\x2d\x1e\xaf\x52\x94\x10\x9e"
+ "\x00\x00\x00\x00\x00\x00\x00\x00",
+ .ptext = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00",
+ .ctext = "\xa2\x12\x09\x09\x65\x94\xde\x8c"
+ "\x56\x67\xb1\xd1\x3a\xd9\x3f\x74"
+ "\x41\x06\xd0\x54\xdf\x21\x0e\x47"
+ "\x82\xcd\x39\x6f\xec\x69\x2d\x35"
+ "\x15\xa2\x0b\xf3\x51\xee\xc0\x11"
+ "\xa9\x2c\x36\x78\x88\xbc\x46\x4c"
+ "\x32\xf0\x80\x7a\xcd\x6c\x20\x3a"
+ "\x24\x7e\x0d\xb8\x54\x14\x84\x68"
+ "\xe9\xf9\x6b\xee\x4c\xf7\x18\xd6"
+ "\x8d\x5f\x63\x7c\xbd\x5a\x37\x64"
+ "\x57\x78\x8e\x6f\xae\x90\xfc\x31"
+ "\x09\x7c\xfc",
+ .len = 91,
+ }, { /* Taken from the ChaCha20 test vectors, appended 12 random bytes
+ to the nonce, zero-padded the stream position from 4 to 8 bytes,
+ and recomputed the ciphertext using libsodium's XChaCha20 */
+ .key = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00",
+ .klen = 32,
+ .iv = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x67\xc6\x69\x73"
+ "\x51\xff\x4a\xec\x29\xcd\xba\xab"
+ "\x00\x00\x00\x00\x00\x00\x00\x00",
+ .ptext = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00",
+ .ctext = "\x9c\x49\x2a\xe7\x8a\x2f\x93\xc7"
+ "\xb3\x33\x6f\x82\x17\xd8\xc4\x1e"
+ "\xad\x80\x11\x11\x1d\x4c\x16\x18"
+ "\x07\x73\x9b\x4f\xdb\x7c\xcb\x47"
+ "\xfd\xef\x59\x74\xfa\x3f\xe5\x4c"
+ "\x9b\xd0\xea\xbc\xba\x56\xad\x32"
+ "\x03\xdc\xf8\x2b\xc1\xe1\x75\x67"
+ "\x23\x7b\xe6\xfc\xd4\x03\x86\x54",
+ .len = 64,
+ }, { /* Derived from a ChaCha20 test vector, via the process above */
+ .key = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x01",
+ .klen = 32,
+ .iv = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x02\xf2\xfb\xe3\x46"
+ "\x7c\xc2\x54\xf8\x1b\xe8\xe7\x8d"
+ "\x01\x00\x00\x00\x00\x00\x00\x00",
+ .ptext = "\x41\x6e\x79\x20\x73\x75\x62\x6d"
+ "\x69\x73\x73\x69\x6f\x6e\x20\x74"
+ "\x6f\x20\x74\x68\x65\x20\x49\x45"
+ "\x54\x46\x20\x69\x6e\x74\x65\x6e"
+ "\x64\x65\x64\x20\x62\x79\x20\x74"
+ "\x68\x65\x20\x43\x6f\x6e\x74\x72"
+ "\x69\x62\x75\x74\x6f\x72\x20\x66"
+ "\x6f\x72\x20\x70\x75\x62\x6c\x69"
+ "\x63\x61\x74\x69\x6f\x6e\x20\x61"
+ "\x73\x20\x61\x6c\x6c\x20\x6f\x72"
+ "\x20\x70\x61\x72\x74\x20\x6f\x66"
+ "\x20\x61\x6e\x20\x49\x45\x54\x46"
+ "\x20\x49\x6e\x74\x65\x72\x6e\x65"
+ "\x74\x2d\x44\x72\x61\x66\x74\x20"
+ "\x6f\x72\x20\x52\x46\x43\x20\x61"
+ "\x6e\x64\x20\x61\x6e\x79\x20\x73"
+ "\x74\x61\x74\x65\x6d\x65\x6e\x74"
+ "\x20\x6d\x61\x64\x65\x20\x77\x69"
+ "\x74\x68\x69\x6e\x20\x74\x68\x65"
+ "\x20\x63\x6f\x6e\x74\x65\x78\x74"
+ "\x20\x6f\x66\x20\x61\x6e\x20\x49"
+ "\x45\x54\x46\x20\x61\x63\x74\x69"
+ "\x76\x69\x74\x79\x20\x69\x73\x20"
+ "\x63\x6f\x6e\x73\x69\x64\x65\x72"
+ "\x65\x64\x20\x61\x6e\x20\x22\x49"
+ "\x45\x54\x46\x20\x43\x6f\x6e\x74"
+ "\x72\x69\x62\x75\x74\x69\x6f\x6e"
+ "\x22\x2e\x20\x53\x75\x63\x68\x20"
+ "\x73\x74\x61\x74\x65\x6d\x65\x6e"
+ "\x74\x73\x20\x69\x6e\x63\x6c\x75"
+ "\x64\x65\x20\x6f\x72\x61\x6c\x20"
+ "\x73\x74\x61\x74\x65\x6d\x65\x6e"
+ "\x74\x73\x20\x69\x6e\x20\x49\x45"
+ "\x54\x46\x20\x73\x65\x73\x73\x69"
+ "\x6f\x6e\x73\x2c\x20\x61\x73\x20"
+ "\x77\x65\x6c\x6c\x20\x61\x73\x20"
+ "\x77\x72\x69\x74\x74\x65\x6e\x20"
+ "\x61\x6e\x64\x20\x65\x6c\x65\x63"
+ "\x74\x72\x6f\x6e\x69\x63\x20\x63"
+ "\x6f\x6d\x6d\x75\x6e\x69\x63\x61"
+ "\x74\x69\x6f\x6e\x73\x20\x6d\x61"
+ "\x64\x65\x20\x61\x74\x20\x61\x6e"
+ "\x79\x20\x74\x69\x6d\x65\x20\x6f"
+ "\x72\x20\x70\x6c\x61\x63\x65\x2c"
+ "\x20\x77\x68\x69\x63\x68\x20\x61"
+ "\x72\x65\x20\x61\x64\x64\x72\x65"
+ "\x73\x73\x65\x64\x20\x74\x6f",
+ .ctext = "\xf9\xab\x7a\x4a\x60\xb8\x5f\xa0"
+ "\x50\xbb\x57\xce\xef\x8c\xc1\xd9"
+ "\x24\x15\xb3\x67\x5e\x7f\x01\xf6"
+ "\x1c\x22\xf6\xe5\x71\xb1\x43\x64"
+ "\x63\x05\xd5\xfc\x5c\x3d\xc0\x0e"
+ "\x23\xef\xd3\x3b\xd9\xdc\x7f\xa8"
+ "\x58\x26\xb3\xd0\xc2\xd5\x04\x3f"
+ "\x0a\x0e\x8f\x17\xe4\xcd\xf7\x2a"
+ "\xb4\x2c\x09\xe4\x47\xec\x8b\xfb"
+ "\x59\x37\x7a\xa1\xd0\x04\x7e\xaa"
+ "\xf1\x98\x5f\x24\x3d\x72\x9a\x43"
+ "\xa4\x36\x51\x92\x22\x87\xff\x26"
+ "\xce\x9d\xeb\x59\x78\x84\x5e\x74"
+ "\x97\x2e\x63\xc0\xef\x29\xf7\x8a"
+ "\xb9\xee\x35\x08\x77\x6a\x35\x9a"
+ "\x3e\xe6\x4f\x06\x03\x74\x1b\xc1"
+ "\x5b\xb3\x0b\x89\x11\x07\xd3\xb7"
+ "\x53\xd6\x25\x04\xd9\x35\xb4\x5d"
+ "\x4c\x33\x5a\xc2\x42\x4c\xe6\xa4"
+ "\x97\x6e\x0e\xd2\xb2\x8b\x2f\x7f"
+ "\x28\xe5\x9f\xac\x4b\x2e\x02\xab"
+ "\x85\xfa\xa9\x0d\x7c\x2d\x10\xe6"
+ "\x91\xab\x55\x63\xf0\xde\x3a\x94"
+ "\x25\x08\x10\x03\xc2\x68\xd1\xf4"
+ "\xaf\x7d\x9c\x99\xf7\x86\x96\x30"
+ "\x60\xfc\x0b\xe6\xa8\x80\x15\xb0"
+ "\x81\xb1\x0c\xbe\xb9\x12\x18\x25"
+ "\xe9\x0e\xb1\xe7\x23\xb2\xef\x4a"
+ "\x22\x8f\xc5\x61\x89\xd4\xe7\x0c"
+ "\x64\x36\x35\x61\xb6\x34\x60\xf7"
+ "\x7b\x61\x37\x37\x12\x10\xa2\xf6"
+ "\x7e\xdb\x7f\x39\x3f\xb6\x8e\x89"
+ "\x9e\xf3\xfe\x13\x98\xbb\x66\x5a"
+ "\xec\xea\xab\x3f\x9c\x87\xc4\x8c"
+ "\x8a\x04\x18\x49\xfc\x77\x11\x50"
+ "\x16\xe6\x71\x2b\xee\xc0\x9c\xb6"
+ "\x87\xfd\x80\xff\x0b\x1d\x73\x38"
+ "\xa4\x1d\x6f\xae\xe4\x12\xd7\x93"
+ "\x9d\xcd\x38\x26\x09\x40\x52\xcd"
+ "\x67\x01\x67\x26\xe0\x3e\x98\xa8"
+ "\xe8\x1a\x13\x41\xbb\x90\x4d\x87"
+ "\xbb\x42\x82\x39\xce\x3a\xd0\x18"
+ "\x6d\x7b\x71\x8f\xbb\x2c\x6a\xd1"
+ "\xbd\xf5\xc7\x8a\x7e\xe1\x1e\x0f"
+ "\x0d\x0d\x13\x7c\xd9\xd8\x3c\x91"
+ "\xab\xff\x1f\x12\xc3\xee\xe5\x65"
+ "\x12\x8d\x7b\x61\xe5\x1f\x98",
+ .len = 375,
+ .also_non_np = 1,
+ .np = 3,
+ .tap = { 375 - 20, 4, 16 },
+
+ }, { /* Derived from a ChaCha20 test vector, via the process above */
+ .key = "\x1c\x92\x40\xa5\xeb\x55\xd3\x8a"
+ "\xf3\x33\x88\x86\x04\xf6\xb5\xf0"
+ "\x47\x39\x17\xc1\x40\x2b\x80\x09"
+ "\x9d\xca\x5c\xbc\x20\x70\x75\xc0",
+ .klen = 32,
+ .iv = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x02\x76\x5a\x2e\x63"
+ "\x33\x9f\xc9\x9a\x66\x32\x0d\xb7"
+ "\x2a\x00\x00\x00\x00\x00\x00\x00",
+ .ptext = "\x27\x54\x77\x61\x73\x20\x62\x72"
+ "\x69\x6c\x6c\x69\x67\x2c\x20\x61"
+ "\x6e\x64\x20\x74\x68\x65\x20\x73"
+ "\x6c\x69\x74\x68\x79\x20\x74\x6f"
+ "\x76\x65\x73\x0a\x44\x69\x64\x20"
+ "\x67\x79\x72\x65\x20\x61\x6e\x64"
+ "\x20\x67\x69\x6d\x62\x6c\x65\x20"
+ "\x69\x6e\x20\x74\x68\x65\x20\x77"
+ "\x61\x62\x65\x3a\x0a\x41\x6c\x6c"
+ "\x20\x6d\x69\x6d\x73\x79\x20\x77"
+ "\x65\x72\x65\x20\x74\x68\x65\x20"
+ "\x62\x6f\x72\x6f\x67\x6f\x76\x65"
+ "\x73\x2c\x0a\x41\x6e\x64\x20\x74"
+ "\x68\x65\x20\x6d\x6f\x6d\x65\x20"
+ "\x72\x61\x74\x68\x73\x20\x6f\x75"
+ "\x74\x67\x72\x61\x62\x65\x2e",
+ .ctext = "\x95\xb9\x51\xe7\x8f\xb4\xa4\x03"
+ "\xca\x37\xcc\xde\x60\x1d\x8c\xe2"
+ "\xf1\xbb\x8a\x13\x7f\x61\x85\xcc"
+ "\xad\xf4\xf0\xdc\x86\xa6\x1e\x10"
+ "\xbc\x8e\xcb\x38\x2b\xa5\xc8\x8f"
+ "\xaa\x03\x3d\x53\x4a\x42\xb1\x33"
+ "\xfc\xd3\xef\xf0\x8e\x7e\x10\x9c"
+ "\x6f\x12\x5e\xd4\x96\xfe\x5b\x08"
+ "\xb6\x48\xf0\x14\x74\x51\x18\x7c"
+ "\x07\x92\xfc\xac\x9d\xf1\x94\xc0"
+ "\xc1\x9d\xc5\x19\x43\x1f\x1d\xbb"
+ "\x07\xf0\x1b\x14\x25\x45\xbb\xcb"
+ "\x5c\xe2\x8b\x28\xf3\xcf\x47\x29"
+ "\x27\x79\x67\x24\xa6\x87\xc2\x11"
+ "\x65\x03\xfa\x45\xf7\x9e\x53\x7a"
+ "\x99\xf1\x82\x25\x4f\x8d\x07",
+ .len = 127,
+ }, { /* Derived from a ChaCha20 test vector, via the process above */
+ .key = "\x1c\x92\x40\xa5\xeb\x55\xd3\x8a"
+ "\xf3\x33\x88\x86\x04\xf6\xb5\xf0"
+ "\x47\x39\x17\xc1\x40\x2b\x80\x09"
+ "\x9d\xca\x5c\xbc\x20\x70\x75\xc0",
+ .klen = 32,
+ .iv = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x01\x31\x58\xa3\x5a"
+ "\x25\x5d\x05\x17\x58\xe9\x5e\xd4"
+ "\x1c\x00\x00\x00\x00\x00\x00\x00",
+ .ptext = "\x49\xee\xe0\xdc\x24\x90\x40\xcd"
+ "\xc5\x40\x8f\x47\x05\xbc\xdd\x81"
+ "\x47\xc6\x8d\xe6\xb1\x8f\xd7\xcb"
+ "\x09\x0e\x6e\x22\x48\x1f\xbf\xb8"
+ "\x5c\xf7\x1e\x8a\xc1\x23\xf2\xd4"
+ "\x19\x4b\x01\x0f\x4e\xa4\x43\xce"
+ "\x01\xc6\x67\xda\x03\x91\x18\x90"
+ "\xa5\xa4\x8e\x45\x03\xb3\x2d\xac"
+ "\x74\x92\xd3\x53\x47\xc8\xdd\x25"
+ "\x53\x6c\x02\x03\x87\x0d\x11\x0c"
+ "\x58\xe3\x12\x18\xfd\x2a\x5b\x40"
+ "\x0c\x30\xf0\xb8\x3f\x43\xce\xae"
+ "\x65\x3a\x7d\x7c\xf4\x54\xaa\xcc"
+ "\x33\x97\xc3\x77\xba\xc5\x70\xde"
+ "\xd7\xd5\x13\xa5\x65\xc4\x5f\x0f"
+ "\x46\x1a\x0d\x97\xb5\xf3\xbb\x3c"
+ "\x84\x0f\x2b\xc5\xaa\xea\xf2\x6c"
+ "\xc9\xb5\x0c\xee\x15\xf3\x7d\xbe"
+ "\x9f\x7b\x5a\xa6\xae\x4f\x83\xb6"
+ "\x79\x49\x41\xf4\x58\x18\xcb\x86"
+ "\x7f\x30\x0e\xf8\x7d\x44\x36\xea"
+ "\x75\xeb\x88\x84\x40\x3c\xad\x4f"
+ "\x6f\x31\x6b\xaa\x5d\xe5\xa5\xc5"
+ "\x21\x66\xe9\xa7\xe3\xb2\x15\x88"
+ "\x78\xf6\x79\xa1\x59\x47\x12\x4e"
+ "\x9f\x9f\x64\x1a\xa0\x22\x5b\x08"
+ "\xbe\x7c\x36\xc2\x2b\x66\x33\x1b"
+ "\xdd\x60\x71\xf7\x47\x8c\x61\xc3"
+ "\xda\x8a\x78\x1e\x16\xfa\x1e\x86"
+ "\x81\xa6\x17\x2a\xa7\xb5\xc2\xe7"
+ "\xa4\xc7\x42\xf1\xcf\x6a\xca\xb4"
+ "\x45\xcf\xf3\x93\xf0\xe7\xea\xf6"
+ "\xf4\xe6\x33\x43\x84\x93\xa5\x67"
+ "\x9b\x16\x58\x58\x80\x0f\x2b\x5c"
+ "\x24\x74\x75\x7f\x95\x81\xb7\x30"
+ "\x7a\x33\xa7\xf7\x94\x87\x32\x27"
+ "\x10\x5d\x14\x4c\x43\x29\xdd\x26"
+ "\xbd\x3e\x3c\x0e\xfe\x0e\xa5\x10"
+ "\xea\x6b\x64\xfd\x73\xc6\xed\xec"
+ "\xa8\xc9\xbf\xb3\xba\x0b\x4d\x07"
+ "\x70\xfc\x16\xfd\x79\x1e\xd7\xc5"
+ "\x49\x4e\x1c\x8b\x8d\x79\x1b\xb1"
+ "\xec\xca\x60\x09\x4c\x6a\xd5\x09"
+ "\x49\x46\x00\x88\x22\x8d\xce\xea"
+ "\xb1\x17\x11\xde\x42\xd2\x23\xc1"
+ "\x72\x11\xf5\x50\x73\x04\x40\x47"
+ "\xf9\x5d\xe7\xa7\x26\xb1\x7e\xb0"
+ "\x3f\x58\xc1\x52\xab\x12\x67\x9d"
+ "\x3f\x43\x4b\x68\xd4\x9c\x68\x38"
+ "\x07\x8a\x2d\x3e\xf3\xaf\x6a\x4b"
+ "\xf9\xe5\x31\x69\x22\xf9\xa6\x69"
+ "\xc6\x9c\x96\x9a\x12\x35\x95\x1d"
+ "\x95\xd5\xdd\xbe\xbf\x93\x53\x24"
+ "\xfd\xeb\xc2\x0a\x64\xb0\x77\x00"
+ "\x6f\x88\xc4\x37\x18\x69\x7c\xd7"
+ "\x41\x92\x55\x4c\x03\xa1\x9a\x4b"
+ "\x15\xe5\xdf\x7f\x37\x33\x72\xc1"
+ "\x8b\x10\x67\xa3\x01\x57\x94\x25"
+ "\x7b\x38\x71\x7e\xdd\x1e\xcc\x73"
+ "\x55\xd2\x8e\xeb\x07\xdd\xf1\xda"
+ "\x58\xb1\x47\x90\xfe\x42\x21\x72"
+ "\xa3\x54\x7a\xa0\x40\xec\x9f\xdd"
+ "\xc6\x84\x6e\xca\xae\xe3\x68\xb4"
+ "\x9d\xe4\x78\xff\x57\xf2\xf8\x1b"
+ "\x03\xa1\x31\xd9\xde\x8d\xf5\x22"
+ "\x9c\xdd\x20\xa4\x1e\x27\xb1\x76"
+ "\x4f\x44\x55\xe2\x9b\xa1\x9c\xfe"
+ "\x54\xf7\x27\x1b\xf4\xde\x02\xf5"
+ "\x1b\x55\x48\x5c\xdc\x21\x4b\x9e"
+ "\x4b\x6e\xed\x46\x23\xdc\x65\xb2"
+ "\xcf\x79\x5f\x28\xe0\x9e\x8b\xe7"
+ "\x4c\x9d\x8a\xff\xc1\xa6\x28\xb8"
+ "\x65\x69\x8a\x45\x29\xef\x74\x85"
+ "\xde\x79\xc7\x08\xae\x30\xb0\xf4"
+ "\xa3\x1d\x51\x41\xab\xce\xcb\xf6"
+ "\xb5\xd8\x6d\xe0\x85\xe1\x98\xb3"
+ "\x43\xbb\x86\x83\x0a\xa0\xf5\xb7"
+ "\x04\x0b\xfa\x71\x1f\xb0\xf6\xd9"
+ "\x13\x00\x15\xf0\xc7\xeb\x0d\x5a"
+ "\x9f\xd7\xb9\x6c\x65\x14\x22\x45"
+ "\x6e\x45\x32\x3e\x7e\x60\x1a\x12"
+ "\x97\x82\x14\xfb\xaa\x04\x22\xfa"
+ "\xa0\xe5\x7e\x8c\x78\x02\x48\x5d"
+ "\x78\x33\x5a\x7c\xad\xdb\x29\xce"
+ "\xbb\x8b\x61\xa4\xb7\x42\xe2\xac"
+ "\x8b\x1a\xd9\x2f\x0b\x8b\x62\x21"
+ "\x83\x35\x7e\xad\x73\xc2\xb5\x6c"
+ "\x10\x26\x38\x07\xe5\xc7\x36\x80"
+ "\xe2\x23\x12\x61\xf5\x48\x4b\x2b"
+ "\xc5\xdf\x15\xd9\x87\x01\xaa\xac"
+ "\x1e\x7c\xad\x73\x78\x18\x63\xe0"
+ "\x8b\x9f\x81\xd8\x12\x6a\x28\x10"
+ "\xbe\x04\x68\x8a\x09\x7c\x1b\x1c"
+ "\x83\x66\x80\x47\x80\xe8\xfd\x35"
+ "\x1c\x97\x6f\xae\x49\x10\x66\xcc"
+ "\xc6\xd8\xcc\x3a\x84\x91\x20\x77"
+ "\x72\xe4\x24\xd2\x37\x9f\xc5\xc9"
+ "\x25\x94\x10\x5f\x40\x00\x64\x99"
+ "\xdc\xae\xd7\x21\x09\x78\x50\x15"
+ "\xac\x5f\xc6\x2c\xa2\x0b\xa9\x39"
+ "\x87\x6e\x6d\xab\xde\x08\x51\x16"
+ "\xc7\x13\xe9\xea\xed\x06\x8e\x2c"
+ "\xf8\x37\x8c\xf0\xa6\x96\x8d\x43"
+ "\xb6\x98\x37\xb2\x43\xed\xde\xdf"
+ "\x89\x1a\xe7\xeb\x9d\xa1\x7b\x0b"
+ "\x77\xb0\xe2\x75\xc0\xf1\x98\xd9"
+ "\x80\x55\xc9\x34\x91\xd1\x59\xe8"
+ "\x4b\x0f\xc1\xa9\x4b\x7a\x84\x06"
+ "\x20\xa8\x5d\xfa\xd1\xde\x70\x56"
+ "\x2f\x9e\x91\x9c\x20\xb3\x24\xd8"
+ "\x84\x3d\xe1\x8c\x7e\x62\x52\xe5"
+ "\x44\x4b\x9f\xc2\x93\x03\xea\x2b"
+ "\x59\xc5\xfa\x3f\x91\x2b\xbb\x23"
+ "\xf5\xb2\x7b\xf5\x38\xaf\xb3\xee"
+ "\x63\xdc\x7b\xd1\xff\xaa\x8b\xab"
+ "\x82\x6b\x37\x04\xeb\x74\xbe\x79"
+ "\xb9\x83\x90\xef\x20\x59\x46\xff"
+ "\xe9\x97\x3e\x2f\xee\xb6\x64\x18"
+ "\x38\x4c\x7a\x4a\xf9\x61\xe8\x9a"
+ "\xa1\xb5\x01\xa6\x47\xd3\x11\xd4"
+ "\xce\xd3\x91\x49\x88\xc7\xb8\x4d"
+ "\xb1\xb9\x07\x6d\x16\x72\xae\x46"
+ "\x5e\x03\xa1\x4b\xb6\x02\x30\xa8"
+ "\x3d\xa9\x07\x2a\x7c\x19\xe7\x62"
+ "\x87\xe3\x82\x2f\x6f\xe1\x09\xd9"
+ "\x94\x97\xea\xdd\x58\x9e\xae\x76"
+ "\x7e\x35\xe5\xb4\xda\x7e\xf4\xde"
+ "\xf7\x32\x87\xcd\x93\xbf\x11\x56"
+ "\x11\xbe\x08\x74\xe1\x69\xad\xe2"
+ "\xd7\xf8\x86\x75\x8a\x3c\xa4\xbe"
+ "\x70\xa7\x1b\xfc\x0b\x44\x2a\x76"
+ "\x35\xea\x5d\x85\x81\xaf\x85\xeb"
+ "\xa0\x1c\x61\xc2\xf7\x4f\xa5\xdc"
+ "\x02\x7f\xf6\x95\x40\x6e\x8a\x9a"
+ "\xf3\x5d\x25\x6e\x14\x3a\x22\xc9"
+ "\x37\x1c\xeb\x46\x54\x3f\xa5\x91"
+ "\xc2\xb5\x8c\xfe\x53\x08\x97\x32"
+ "\x1b\xb2\x30\x27\xfe\x25\x5d\xdc"
+ "\x08\x87\xd0\xe5\x94\x1a\xd4\xf1"
+ "\xfe\xd6\xb4\xa3\xe6\x74\x81\x3c"
+ "\x1b\xb7\x31\xa7\x22\xfd\xd4\xdd"
+ "\x20\x4e\x7c\x51\xb0\x60\x73\xb8"
+ "\x9c\xac\x91\x90\x7e\x01\xb0\xe1"
+ "\x8a\x2f\x75\x1c\x53\x2a\x98\x2a"
+ "\x06\x52\x95\x52\xb2\xe9\x25\x2e"
+ "\x4c\xe2\x5a\x00\xb2\x13\x81\x03"
+ "\x77\x66\x0d\xa5\x99\xda\x4e\x8c"
+ "\xac\xf3\x13\x53\x27\x45\xaf\x64"
+ "\x46\xdc\xea\x23\xda\x97\xd1\xab"
+ "\x7d\x6c\x30\x96\x1f\xbc\x06\x34"
+ "\x18\x0b\x5e\x21\x35\x11\x8d\x4c"
+ "\xe0\x2d\xe9\x50\x16\x74\x81\xa8"
+ "\xb4\x34\xb9\x72\x42\xa6\xcc\xbc"
+ "\xca\x34\x83\x27\x10\x5b\x68\x45"
+ "\x8f\x52\x22\x0c\x55\x3d\x29\x7c"
+ "\xe3\xc0\x66\x05\x42\x91\x5f\x58"
+ "\xfe\x4a\x62\xd9\x8c\xa9\x04\x19"
+ "\x04\xa9\x08\x4b\x57\xfc\x67\x53"
+ "\x08\x7c\xbc\x66\x8a\xb0\xb6\x9f"
+ "\x92\xd6\x41\x7c\x5b\x2a\x00\x79"
+ "\x72",
+ .ctext = "\x3a\x92\xee\x53\x31\xaf\x2b\x60"
+ "\x5f\x55\x8d\x00\x5d\xfc\x74\x97"
+ "\x28\x54\xf4\xa5\x75\xf1\x9b\x25"
+ "\x62\x1c\xc0\xe0\x13\xc8\x87\x53"
+ "\xd0\xf3\xa7\x97\x1f\x3b\x1e\xea"
+ "\xe0\xe5\x2a\xd1\xdd\xa4\x3b\x50"
+ "\x45\xa3\x0d\x7e\x1b\xc9\xa0\xad"
+ "\xb9\x2c\x54\xa6\xc7\x55\x16\xd0"
+ "\xc5\x2e\x02\x44\x35\xd0\x7e\x67"
+ "\xf2\xc4\x9b\xcd\x95\x10\xcc\x29"
+ "\x4b\xfa\x86\x87\xbe\x40\x36\xbe"
+ "\xe1\xa3\x52\x89\x55\x20\x9b\xc2"
+ "\xab\xf2\x31\x34\x16\xad\xc8\x17"
+ "\x65\x24\xc0\xff\x12\x37\xfe\x5a"
+ "\x62\x3b\x59\x47\x6c\x5f\x3a\x8e"
+ "\x3b\xd9\x30\xc8\x7f\x2f\x88\xda"
+ "\x80\xfd\x02\xda\x7f\x9a\x7a\x73"
+ "\x59\xc5\x34\x09\x9a\x11\xcb\xa7"
+ "\xfc\xf6\xa1\xa0\x60\xfb\x43\xbb"
+ "\xf1\xe9\xd7\xc6\x79\x27\x4e\xff"
+ "\x22\xb4\x24\xbf\x76\xee\x47\xb9"
+ "\x6d\x3f\x8b\xb0\x9c\x3c\x43\xdd"
+ "\xff\x25\x2e\x6d\xa4\x2b\xfb\x5d"
+ "\x1b\x97\x6c\x55\x0a\x82\x7a\x7b"
+ "\x94\x34\xc2\xdb\x2f\x1f\xc1\xea"
+ "\xd4\x4d\x17\x46\x3b\x51\x69\x09"
+ "\xe4\x99\x32\x25\xfd\x94\xaf\xfb"
+ "\x10\xf7\x4f\xdd\x0b\x3c\x8b\x41"
+ "\xb3\x6a\xb7\xd1\x33\xa8\x0c\x2f"
+ "\x62\x4c\x72\x11\xd7\x74\xe1\x3b"
+ "\x38\x43\x66\x7b\x6c\x36\x48\xe7"
+ "\xe3\xe7\x9d\xb9\x42\x73\x7a\x2a"
+ "\x89\x20\x1a\x41\x80\x03\xf7\x8f"
+ "\x61\x78\x13\xbf\xfe\x50\xf5\x04"
+ "\x52\xf9\xac\x47\xf8\x62\x4b\xb2"
+ "\x24\xa9\xbf\x64\xb0\x18\x69\xd2"
+ "\xf5\xe4\xce\xc8\xb1\x87\x75\xd6"
+ "\x2c\x24\x79\x00\x7d\x26\xfb\x44"
+ "\xe7\x45\x7a\xee\x58\xa5\x83\xc1"
+ "\xb4\x24\xab\x23\x2f\x4d\xd7\x4f"
+ "\x1c\xc7\xaa\xa9\x50\xf4\xa3\x07"
+ "\x12\x13\x89\x74\xdc\x31\x6a\xb2"
+ "\xf5\x0f\x13\x8b\xb9\xdb\x85\x1f"
+ "\xf5\xbc\x88\xd9\x95\xea\x31\x6c"
+ "\x36\x60\xb6\x49\xdc\xc4\xf7\x55"
+ "\x3f\x21\xc1\xb5\x92\x18\x5e\xbc"
+ "\x9f\x87\x7f\xe7\x79\x25\x40\x33"
+ "\xd6\xb9\x33\xd5\x50\xb3\xc7\x89"
+ "\x1b\x12\xa0\x46\xdd\xa7\xd8\x3e"
+ "\x71\xeb\x6f\x66\xa1\x26\x0c\x67"
+ "\xab\xb2\x38\x58\x17\xd8\x44\x3b"
+ "\x16\xf0\x8e\x62\x8d\x16\x10\x00"
+ "\x32\x8b\xef\xb9\x28\xd3\xc5\xad"
+ "\x0a\x19\xa2\xe4\x03\x27\x7d\x94"
+ "\x06\x18\xcd\xd6\x27\x00\xf9\x1f"
+ "\xb6\xb3\xfe\x96\x35\x5f\xc4\x1c"
+ "\x07\x62\x10\x79\x68\x50\xf1\x7e"
+ "\x29\xe7\xc4\xc4\xe7\xee\x54\xd6"
+ "\x58\x76\x84\x6d\x8d\xe4\x59\x31"
+ "\xe9\xf4\xdc\xa1\x1f\xe5\x1a\xd6"
+ "\xe6\x64\x46\xf5\x77\x9c\x60\x7a"
+ "\x5e\x62\xe3\x0a\xd4\x9f\x7a\x2d"
+ "\x7a\xa5\x0a\x7b\x29\x86\x7a\x74"
+ "\x74\x71\x6b\xca\x7d\x1d\xaa\xba"
+ "\x39\x84\x43\x76\x35\xfe\x4f\x9b"
+ "\xbb\xbb\xb5\x6a\x32\xb5\x5d\x41"
+ "\x51\xf0\x5b\x68\x03\x47\x4b\x8a"
+ "\xca\x88\xf6\x37\xbd\x73\x51\x70"
+ "\x66\xfe\x9e\x5f\x21\x9c\xf3\xdd"
+ "\xc3\xea\x27\xf9\x64\x94\xe1\x19"
+ "\xa0\xa9\xab\x60\xe0\x0e\xf7\x78"
+ "\x70\x86\xeb\xe0\xd1\x5c\x05\xd3"
+ "\xd7\xca\xe0\xc0\x47\x47\x34\xee"
+ "\x11\xa3\xa3\x54\x98\xb7\x49\x8e"
+ "\x84\x28\x70\x2c\x9e\xfb\x55\x54"
+ "\x4d\xf8\x86\xf7\x85\x7c\xbd\xf3"
+ "\x17\xd8\x47\xcb\xac\xf4\x20\x85"
+ "\x34\x66\xad\x37\x2d\x5e\x52\xda"
+ "\x8a\xfe\x98\x55\x30\xe7\x2d\x2b"
+ "\x19\x10\x8e\x7b\x66\x5e\xdc\xe0"
+ "\x45\x1f\x7b\xb4\x08\xfb\x8f\xf6"
+ "\x8c\x89\x21\x34\x55\x27\xb2\x76"
+ "\xb2\x07\xd9\xd6\x68\x9b\xea\x6b"
+ "\x2d\xb4\xc4\x35\xdd\xd2\x79\xae"
+ "\xc7\xd6\x26\x7f\x12\x01\x8c\xa7"
+ "\xe3\xdb\xa8\xf4\xf7\x2b\xec\x99"
+ "\x11\x00\xf1\x35\x8c\xcf\xd5\xc9"
+ "\xbd\x91\x36\x39\x70\xcf\x7d\x70"
+ "\x47\x1a\xfc\x6b\x56\xe0\x3f\x9c"
+ "\x60\x49\x01\x72\xa9\xaf\x2c\x9c"
+ "\xe8\xab\xda\x8c\x14\x19\xf3\x75"
+ "\x07\x17\x9d\x44\x67\x7a\x2e\xef"
+ "\xb7\x83\x35\x4a\xd1\x3d\x1c\x84"
+ "\x32\xdd\xaa\xea\xca\x1d\xdc\x72"
+ "\x2c\xcc\x43\xcd\x5d\xe3\x21\xa4"
+ "\xd0\x8a\x4b\x20\x12\xa3\xd5\x86"
+ "\x76\x96\xff\x5f\x04\x57\x0f\xe6"
+ "\xba\xe8\x76\x50\x0c\x64\x1d\x83"
+ "\x9c\x9b\x9a\x9a\x58\x97\x9c\x5c"
+ "\xb4\xa4\xa6\x3e\x19\xeb\x8f\x5a"
+ "\x61\xb2\x03\x7b\x35\x19\xbe\xa7"
+ "\x63\x0c\xfd\xdd\xf9\x90\x6c\x08"
+ "\x19\x11\xd3\x65\x4a\xf5\x96\x92"
+ "\x59\xaa\x9c\x61\x0c\x29\xa7\xf8"
+ "\x14\x39\x37\xbf\x3c\xf2\x16\x72"
+ "\x02\xfa\xa2\xf3\x18\x67\x5d\xcb"
+ "\xdc\x4d\xbb\x96\xff\x70\x08\x2d"
+ "\xc2\xa8\x52\xe1\x34\x5f\x72\xfe"
+ "\x64\xbf\xca\xa7\x74\x38\xfb\x74"
+ "\x55\x9c\xfa\x8a\xed\xfb\x98\xeb"
+ "\x58\x2e\x6c\xe1\x52\x76\x86\xd7"
+ "\xcf\xa1\xa4\xfc\xb2\x47\x41\x28"
+ "\xa3\xc1\xe5\xfd\x53\x19\x28\x2b"
+ "\x37\x04\x65\x96\x99\x7a\x28\x0f"
+ "\x07\x68\x4b\xc7\x52\x0a\x55\x35"
+ "\x40\x19\x95\x61\xe8\x59\x40\x1f"
+ "\x9d\xbf\x78\x7d\x8f\x84\xff\x6f"
+ "\xd0\xd5\x63\xd2\x22\xbd\xc8\x4e"
+ "\xfb\xe7\x9f\x06\xe6\xe7\x39\x6d"
+ "\x6a\x96\x9f\xf0\x74\x7e\xc9\x35"
+ "\xb7\x26\xb8\x1c\x0a\xa6\x27\x2c"
+ "\xa2\x2b\xfe\xbe\x0f\x07\x73\xae"
+ "\x7f\x7f\x54\xf5\x7c\x6a\x0a\x56"
+ "\x49\xd4\x81\xe5\x85\x53\x99\x1f"
+ "\x95\x05\x13\x58\x8d\x0e\x1b\x90"
+ "\xc3\x75\x48\x64\x58\x98\x67\x84"
+ "\xae\xe2\x21\xa2\x8a\x04\x0a\x0b"
+ "\x61\xaa\xb0\xd4\x28\x60\x7a\xf8"
+ "\xbc\x52\xfb\x24\x7f\xed\x0d\x2a"
+ "\x0a\xb2\xf9\xc6\x95\xb5\x11\xc9"
+ "\xf4\x0f\x26\x11\xcf\x2a\x57\x87"
+ "\x7a\xf3\xe7\x94\x65\xc2\xb5\xb3"
+ "\xab\x98\xe3\xc1\x2b\x59\x19\x7c"
+ "\xd6\xf3\xf9\xbf\xff\x6d\xc6\x82"
+ "\x13\x2f\x4a\x2e\xcd\x26\xfe\x2d"
+ "\x01\x70\xf4\xc2\x7f\x1f\x4c\xcb"
+ "\x47\x77\x0c\xa0\xa3\x03\xec\xda"
+ "\xa9\xbf\x0d\x2d\xae\xe4\xb8\x7b"
+ "\xa9\xbc\x08\xb4\x68\x2e\xc5\x60"
+ "\x8d\x87\x41\x2b\x0f\x69\xf0\xaf"
+ "\x5f\xba\x72\x20\x0f\x33\xcd\x6d"
+ "\x36\x7d\x7b\xd5\x05\xf1\x4b\x05"
+ "\xc4\xfc\x7f\x80\xb9\x4d\xbd\xf7"
+ "\x7c\x84\x07\x01\xc2\x40\x66\x5b"
+ "\x98\xc7\x2c\xe3\x97\xfa\xdf\x87"
+ "\xa0\x1f\xe9\x21\x42\x0f\x3b\xeb"
+ "\x89\x1c\x3b\xca\x83\x61\x77\x68"
+ "\x84\xbb\x60\x87\x38\x2e\x25\xd5"
+ "\x9e\x04\x41\x70\xac\xda\xc0\x9c"
+ "\x9c\x69\xea\x8d\x4e\x55\x2a\x29"
+ "\xed\x05\x4b\x7b\x73\x71\x90\x59"
+ "\x4d\xc8\xd8\x44\xf0\x4c\xe1\x5e"
+ "\x84\x47\x55\xcc\x32\x3f\xe7\x97"
+ "\x42\xc6\x32\xac\x40\xe5\xa5\xc7"
+ "\x8b\xed\xdb\xf7\x83\xd6\xb1\xc2"
+ "\x52\x5e\x34\xb7\xeb\x6e\xd9\xfc"
+ "\xe5\x93\x9a\x97\x3e\xb0\xdc\xd9"
+ "\xd7\x06\x10\xb6\x1d\x80\x59\xdd"
+ "\x0d\xfe\x64\x35\xcd\x5d\xec\xf0"
+ "\xba\xd0\x34\xc9\x2d\x91\xc5\x17"
+ "\x11",
+ .len = 1281,
+ .also_non_np = 1,
+ .np = 3,
+ .tap = { 1200, 1, 80 },
+ }, { /* test vector from https://tools.ietf.org/html/draft-arciszewski-xchacha-02#appendix-A.3.2 */
+ .key = "\x80\x81\x82\x83\x84\x85\x86\x87"
+ "\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f"
+ "\x90\x91\x92\x93\x94\x95\x96\x97"
+ "\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f",
+ .klen = 32,
+ .iv = "\x40\x41\x42\x43\x44\x45\x46\x47"
+ "\x48\x49\x4a\x4b\x4c\x4d\x4e\x4f"
+ "\x50\x51\x52\x53\x54\x55\x56\x58"
+ "\x00\x00\x00\x00\x00\x00\x00\x00",
+ .ptext = "\x54\x68\x65\x20\x64\x68\x6f\x6c"
+ "\x65\x20\x28\x70\x72\x6f\x6e\x6f"
+ "\x75\x6e\x63\x65\x64\x20\x22\x64"
+ "\x6f\x6c\x65\x22\x29\x20\x69\x73"
+ "\x20\x61\x6c\x73\x6f\x20\x6b\x6e"
+ "\x6f\x77\x6e\x20\x61\x73\x20\x74"
+ "\x68\x65\x20\x41\x73\x69\x61\x74"
+ "\x69\x63\x20\x77\x69\x6c\x64\x20"
+ "\x64\x6f\x67\x2c\x20\x72\x65\x64"
+ "\x20\x64\x6f\x67\x2c\x20\x61\x6e"
+ "\x64\x20\x77\x68\x69\x73\x74\x6c"
+ "\x69\x6e\x67\x20\x64\x6f\x67\x2e"
+ "\x20\x49\x74\x20\x69\x73\x20\x61"
+ "\x62\x6f\x75\x74\x20\x74\x68\x65"
+ "\x20\x73\x69\x7a\x65\x20\x6f\x66"
+ "\x20\x61\x20\x47\x65\x72\x6d\x61"
+ "\x6e\x20\x73\x68\x65\x70\x68\x65"
+ "\x72\x64\x20\x62\x75\x74\x20\x6c"
+ "\x6f\x6f\x6b\x73\x20\x6d\x6f\x72"
+ "\x65\x20\x6c\x69\x6b\x65\x20\x61"
+ "\x20\x6c\x6f\x6e\x67\x2d\x6c\x65"
+ "\x67\x67\x65\x64\x20\x66\x6f\x78"
+ "\x2e\x20\x54\x68\x69\x73\x20\x68"
+ "\x69\x67\x68\x6c\x79\x20\x65\x6c"
+ "\x75\x73\x69\x76\x65\x20\x61\x6e"
+ "\x64\x20\x73\x6b\x69\x6c\x6c\x65"
+ "\x64\x20\x6a\x75\x6d\x70\x65\x72"
+ "\x20\x69\x73\x20\x63\x6c\x61\x73"
+ "\x73\x69\x66\x69\x65\x64\x20\x77"
+ "\x69\x74\x68\x20\x77\x6f\x6c\x76"
+ "\x65\x73\x2c\x20\x63\x6f\x79\x6f"
+ "\x74\x65\x73\x2c\x20\x6a\x61\x63"
+ "\x6b\x61\x6c\x73\x2c\x20\x61\x6e"
+ "\x64\x20\x66\x6f\x78\x65\x73\x20"
+ "\x69\x6e\x20\x74\x68\x65\x20\x74"
+ "\x61\x78\x6f\x6e\x6f\x6d\x69\x63"
+ "\x20\x66\x61\x6d\x69\x6c\x79\x20"
+ "\x43\x61\x6e\x69\x64\x61\x65\x2e",
+ .ctext = "\x45\x59\xab\xba\x4e\x48\xc1\x61"
+ "\x02\xe8\xbb\x2c\x05\xe6\x94\x7f"
+ "\x50\xa7\x86\xde\x16\x2f\x9b\x0b"
+ "\x7e\x59\x2a\x9b\x53\xd0\xd4\xe9"
+ "\x8d\x8d\x64\x10\xd5\x40\xa1\xa6"
+ "\x37\x5b\x26\xd8\x0d\xac\xe4\xfa"
+ "\xb5\x23\x84\xc7\x31\xac\xbf\x16"
+ "\xa5\x92\x3c\x0c\x48\xd3\x57\x5d"
+ "\x4d\x0d\x2c\x67\x3b\x66\x6f\xaa"
+ "\x73\x10\x61\x27\x77\x01\x09\x3a"
+ "\x6b\xf7\xa1\x58\xa8\x86\x42\x92"
+ "\xa4\x1c\x48\xe3\xa9\xb4\xc0\xda"
+ "\xec\xe0\xf8\xd9\x8d\x0d\x7e\x05"
+ "\xb3\x7a\x30\x7b\xbb\x66\x33\x31"
+ "\x64\xec\x9e\x1b\x24\xea\x0d\x6c"
+ "\x3f\xfd\xdc\xec\x4f\x68\xe7\x44"
+ "\x30\x56\x19\x3a\x03\xc8\x10\xe1"
+ "\x13\x44\xca\x06\xd8\xed\x8a\x2b"
+ "\xfb\x1e\x8d\x48\xcf\xa6\xbc\x0e"
+ "\xb4\xe2\x46\x4b\x74\x81\x42\x40"
+ "\x7c\x9f\x43\x1a\xee\x76\x99\x60"
+ "\xe1\x5b\xa8\xb9\x68\x90\x46\x6e"
+ "\xf2\x45\x75\x99\x85\x23\x85\xc6"
+ "\x61\xf7\x52\xce\x20\xf9\xda\x0c"
+ "\x09\xab\x6b\x19\xdf\x74\xe7\x6a"
+ "\x95\x96\x74\x46\xf8\xd0\xfd\x41"
+ "\x5e\x7b\xee\x2a\x12\xa1\x14\xc2"
+ "\x0e\xb5\x29\x2a\xe7\xa3\x49\xae"
+ "\x57\x78\x20\xd5\x52\x0a\x1f\x3f"
+ "\xb6\x2a\x17\xce\x6a\x7e\x68\xfa"
+ "\x7c\x79\x11\x1d\x88\x60\x92\x0b"
+ "\xc0\x48\xef\x43\xfe\x84\x48\x6c"
+ "\xcb\x87\xc2\x5f\x0a\xe0\x45\xf0"
+ "\xcc\xe1\xe7\x98\x9a\x9a\xa2\x20"
+ "\xa2\x8b\xdd\x48\x27\xe7\x51\xa2"
+ "\x4a\x6d\x5c\x62\xd7\x90\xa6\x63"
+ "\x93\xb9\x31\x11\xc1\xa5\x5d\xd7"
+ "\x42\x1a\x10\x18\x49\x74\xc7\xc5",
+ .len = 304,
+ }
+};
+
+/*
+ * Same as XChaCha20 test vectors above, but recomputed the ciphertext with
+ * XChaCha12, using a modified libsodium.
+ */
+static const struct cipher_testvec xchacha12_tv_template[] = {
+ {
+ .key = "\x79\xc9\x97\x98\xac\x67\x30\x0b"
+ "\xbb\x27\x04\xc9\x5c\x34\x1e\x32"
+ "\x45\xf3\xdc\xb2\x17\x61\xb9\x8e"
+ "\x52\xff\x45\xb2\x4f\x30\x4f\xc4",
+ .klen = 32,
+ .iv = "\xb3\x3f\xfd\x30\x96\x47\x9b\xcf"
+ "\xbc\x9a\xee\x49\x41\x76\x88\xa0"
+ "\xa2\x55\x4f\x8d\x95\x38\x94\x19"
+ "\x00\x00\x00\x00\x00\x00\x00\x00",
+ .ptext = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00",
+ .ctext = "\x1b\x78\x7f\xd7\xa1\x41\x68\xab"
+ "\x3d\x3f\xd1\x7b\x69\x56\xb2\xd5"
+ "\x43\xce\xeb\xaf\x36\xf0\x29\x9d"
+ "\x3a\xfb\x18\xae\x1b",
+ .len = 29,
+ }, {
+ .key = "\x9d\x23\xbd\x41\x49\xcb\x97\x9c"
+ "\xcf\x3c\x5c\x94\xdd\x21\x7e\x98"
+ "\x08\xcb\x0e\x50\xcd\x0f\x67\x81"
+ "\x22\x35\xea\xaf\x60\x1d\x62\x32",
+ .klen = 32,
+ .iv = "\xc0\x47\x54\x82\x66\xb7\xc3\x70"
+ "\xd3\x35\x66\xa2\x42\x5c\xbf\x30"
+ "\xd8\x2d\x1e\xaf\x52\x94\x10\x9e"
+ "\x00\x00\x00\x00\x00\x00\x00\x00",
+ .ptext = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00",
+ .ctext = "\xfb\x32\x09\x1d\x83\x05\xae\x4c"
+ "\x13\x1f\x12\x71\xf2\xca\xb2\xeb"
+ "\x5b\x83\x14\x7d\x83\xf6\x57\x77"
+ "\x2e\x40\x1f\x92\x2c\xf9\xec\x35"
+ "\x34\x1f\x93\xdf\xfb\x30\xd7\x35"
+ "\x03\x05\x78\xc1\x20\x3b\x7a\xe3"
+ "\x62\xa3\x89\xdc\x11\x11\x45\xa8"
+ "\x82\x89\xa0\xf1\x4e\xc7\x0f\x11"
+ "\x69\xdd\x0c\x84\x2b\x89\x5c\xdc"
+ "\xf0\xde\x01\xef\xc5\x65\x79\x23"
+ "\x87\x67\xd6\x50\xd9\x8d\xd9\x92"
+ "\x54\x5b\x0e",
+ .len = 91,
+ }, {
+ .key = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00",
+ .klen = 32,
+ .iv = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x67\xc6\x69\x73"
+ "\x51\xff\x4a\xec\x29\xcd\xba\xab"
+ "\x00\x00\x00\x00\x00\x00\x00\x00",
+ .ptext = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00",
+ .ctext = "\xdf\x2d\xc6\x21\x2a\x9d\xa1\xbb"
+ "\xc2\x77\x66\x0c\x5c\x46\xef\xa7"
+ "\x79\x1b\xb9\xdf\x55\xe2\xf9\x61"
+ "\x4c\x7b\xa4\x52\x24\xaf\xa2\xda"
+ "\xd1\x8f\x8f\xa2\x9e\x53\x4d\xc4"
+ "\xb8\x55\x98\x08\x7c\x08\xd4\x18"
+ "\x67\x8f\xef\x50\xb1\x5f\xa5\x77"
+ "\x4c\x25\xe7\x86\x26\x42\xca\x44",
+ .len = 64,
+ }, {
+ .key = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x01",
+ .klen = 32,
+ .iv = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x02\xf2\xfb\xe3\x46"
+ "\x7c\xc2\x54\xf8\x1b\xe8\xe7\x8d"
+ "\x01\x00\x00\x00\x00\x00\x00\x00",
+ .ptext = "\x41\x6e\x79\x20\x73\x75\x62\x6d"
+ "\x69\x73\x73\x69\x6f\x6e\x20\x74"
+ "\x6f\x20\x74\x68\x65\x20\x49\x45"
+ "\x54\x46\x20\x69\x6e\x74\x65\x6e"
+ "\x64\x65\x64\x20\x62\x79\x20\x74"
+ "\x68\x65\x20\x43\x6f\x6e\x74\x72"
+ "\x69\x62\x75\x74\x6f\x72\x20\x66"
+ "\x6f\x72\x20\x70\x75\x62\x6c\x69"
+ "\x63\x61\x74\x69\x6f\x6e\x20\x61"
+ "\x73\x20\x61\x6c\x6c\x20\x6f\x72"
+ "\x20\x70\x61\x72\x74\x20\x6f\x66"
+ "\x20\x61\x6e\x20\x49\x45\x54\x46"
+ "\x20\x49\x6e\x74\x65\x72\x6e\x65"
+ "\x74\x2d\x44\x72\x61\x66\x74\x20"
+ "\x6f\x72\x20\x52\x46\x43\x20\x61"
+ "\x6e\x64\x20\x61\x6e\x79\x20\x73"
+ "\x74\x61\x74\x65\x6d\x65\x6e\x74"
+ "\x20\x6d\x61\x64\x65\x20\x77\x69"
+ "\x74\x68\x69\x6e\x20\x74\x68\x65"
+ "\x20\x63\x6f\x6e\x74\x65\x78\x74"
+ "\x20\x6f\x66\x20\x61\x6e\x20\x49"
+ "\x45\x54\x46\x20\x61\x63\x74\x69"
+ "\x76\x69\x74\x79\x20\x69\x73\x20"
+ "\x63\x6f\x6e\x73\x69\x64\x65\x72"
+ "\x65\x64\x20\x61\x6e\x20\x22\x49"
+ "\x45\x54\x46\x20\x43\x6f\x6e\x74"
+ "\x72\x69\x62\x75\x74\x69\x6f\x6e"
+ "\x22\x2e\x20\x53\x75\x63\x68\x20"
+ "\x73\x74\x61\x74\x65\x6d\x65\x6e"
+ "\x74\x73\x20\x69\x6e\x63\x6c\x75"
+ "\x64\x65\x20\x6f\x72\x61\x6c\x20"
+ "\x73\x74\x61\x74\x65\x6d\x65\x6e"
+ "\x74\x73\x20\x69\x6e\x20\x49\x45"
+ "\x54\x46\x20\x73\x65\x73\x73\x69"
+ "\x6f\x6e\x73\x2c\x20\x61\x73\x20"
+ "\x77\x65\x6c\x6c\x20\x61\x73\x20"
+ "\x77\x72\x69\x74\x74\x65\x6e\x20"
+ "\x61\x6e\x64\x20\x65\x6c\x65\x63"
+ "\x74\x72\x6f\x6e\x69\x63\x20\x63"
+ "\x6f\x6d\x6d\x75\x6e\x69\x63\x61"
+ "\x74\x69\x6f\x6e\x73\x20\x6d\x61"
+ "\x64\x65\x20\x61\x74\x20\x61\x6e"
+ "\x79\x20\x74\x69\x6d\x65\x20\x6f"
+ "\x72\x20\x70\x6c\x61\x63\x65\x2c"
+ "\x20\x77\x68\x69\x63\x68\x20\x61"
+ "\x72\x65\x20\x61\x64\x64\x72\x65"
+ "\x73\x73\x65\x64\x20\x74\x6f",
+ .ctext = "\xe4\xa6\xc8\x30\xc4\x23\x13\xd6"
+ "\x08\x4d\xc9\xb7\xa5\x64\x7c\xb9"
+ "\x71\xe2\xab\x3e\xa8\x30\x8a\x1c"
+ "\x4a\x94\x6d\x9b\xe0\xb3\x6f\xf1"
+ "\xdc\xe3\x1b\xb3\xa9\x6d\x0d\xd6"
+ "\xd0\xca\x12\xef\xe7\x5f\xd8\x61"
+ "\x3c\x82\xd3\x99\x86\x3c\x6f\x66"
+ "\x02\x06\xdc\x55\xf9\xed\xdf\x38"
+ "\xb4\xa6\x17\x00\x7f\xef\xbf\x4f"
+ "\xf8\x36\xf1\x60\x7e\x47\xaf\xdb"
+ "\x55\x9b\x12\xcb\x56\x44\xa7\x1f"
+ "\xd3\x1a\x07\x3b\x00\xec\xe6\x4c"
+ "\xa2\x43\x27\xdf\x86\x19\x4f\x16"
+ "\xed\xf9\x4a\xf3\x63\x6f\xfa\x7f"
+ "\x78\x11\xf6\x7d\x97\x6f\xec\x6f"
+ "\x85\x0f\x5c\x36\x13\x8d\x87\xe0"
+ "\x80\xb1\x69\x0b\x98\x89\x9c\x4e"
+ "\xf8\xdd\xee\x5c\x0a\x85\xce\xd4"
+ "\xea\x1b\x48\xbe\x08\xf8\xe2\xa8"
+ "\xa5\xb0\x3c\x79\xb1\x15\xb4\xb9"
+ "\x75\x10\x95\x35\x81\x7e\x26\xe6"
+ "\x78\xa4\x88\xcf\xdb\x91\x34\x18"
+ "\xad\xd7\x8e\x07\x7d\xab\x39\xf9"
+ "\xa3\x9e\xa5\x1d\xbb\xed\x61\xfd"
+ "\xdc\xb7\x5a\x27\xfc\xb5\xc9\x10"
+ "\xa8\xcc\x52\x7f\x14\x76\x90\xe7"
+ "\x1b\x29\x60\x74\xc0\x98\x77\xbb"
+ "\xe0\x54\xbb\x27\x49\x59\x1e\x62"
+ "\x3d\xaf\x74\x06\xa4\x42\x6f\xc6"
+ "\x52\x97\xc4\x1d\xc4\x9f\xe2\xe5"
+ "\x38\x57\x91\xd1\xa2\x28\xcc\x40"
+ "\xcc\x70\x59\x37\xfc\x9f\x4b\xda"
+ "\xa0\xeb\x97\x9a\x7d\xed\x14\x5c"
+ "\x9c\xb7\x93\x26\x41\xa8\x66\xdd"
+ "\x87\x6a\xc0\xd3\xc2\xa9\x3e\xae"
+ "\xe9\x72\xfe\xd1\xb3\xac\x38\xea"
+ "\x4d\x15\xa9\xd5\x36\x61\xe9\x96"
+ "\x6c\x23\xf8\x43\xe4\x92\x29\xd9"
+ "\x8b\x78\xf7\x0a\x52\xe0\x19\x5b"
+ "\x59\x69\x5b\x5d\xa1\x53\xc4\x68"
+ "\xe1\xbb\xac\x89\x14\xe2\xe2\x85"
+ "\x41\x18\xf5\xb3\xd1\xfa\x68\x19"
+ "\x44\x78\xdc\xcf\xe7\x88\x2d\x52"
+ "\x5f\x40\xb5\x7e\xf8\x88\xa2\xae"
+ "\x4a\xb2\x07\x35\x9d\x9b\x07\x88"
+ "\xb7\x00\xd0\x0c\xb6\xa0\x47\x59"
+ "\xda\x4e\xc9\xab\x9b\x8a\x7b",
+
+ .len = 375,
+ .also_non_np = 1,
+ .np = 3,
+ .tap = { 375 - 20, 4, 16 },
+
+ }, {
+ .key = "\x1c\x92\x40\xa5\xeb\x55\xd3\x8a"
+ "\xf3\x33\x88\x86\x04\xf6\xb5\xf0"
+ "\x47\x39\x17\xc1\x40\x2b\x80\x09"
+ "\x9d\xca\x5c\xbc\x20\x70\x75\xc0",
+ .klen = 32,
+ .iv = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x02\x76\x5a\x2e\x63"
+ "\x33\x9f\xc9\x9a\x66\x32\x0d\xb7"
+ "\x2a\x00\x00\x00\x00\x00\x00\x00",
+ .ptext = "\x27\x54\x77\x61\x73\x20\x62\x72"
+ "\x69\x6c\x6c\x69\x67\x2c\x20\x61"
+ "\x6e\x64\x20\x74\x68\x65\x20\x73"
+ "\x6c\x69\x74\x68\x79\x20\x74\x6f"
+ "\x76\x65\x73\x0a\x44\x69\x64\x20"
+ "\x67\x79\x72\x65\x20\x61\x6e\x64"
+ "\x20\x67\x69\x6d\x62\x6c\x65\x20"
+ "\x69\x6e\x20\x74\x68\x65\x20\x77"
+ "\x61\x62\x65\x3a\x0a\x41\x6c\x6c"
+ "\x20\x6d\x69\x6d\x73\x79\x20\x77"
+ "\x65\x72\x65\x20\x74\x68\x65\x20"
+ "\x62\x6f\x72\x6f\x67\x6f\x76\x65"
+ "\x73\x2c\x0a\x41\x6e\x64\x20\x74"
+ "\x68\x65\x20\x6d\x6f\x6d\x65\x20"
+ "\x72\x61\x74\x68\x73\x20\x6f\x75"
+ "\x74\x67\x72\x61\x62\x65\x2e",
+ .ctext = "\xb9\x68\xbc\x6a\x24\xbc\xcc\xd8"
+ "\x9b\x2a\x8d\x5b\x96\xaf\x56\xe3"
+ "\x11\x61\xe7\xa7\x9b\xce\x4e\x7d"
+ "\x60\x02\x48\xac\xeb\xd5\x3a\x26"
+ "\x9d\x77\x3b\xb5\x32\x13\x86\x8e"
+ "\x20\x82\x26\x72\xae\x64\x1b\x7e"
+ "\x2e\x01\x68\xb4\x87\x45\xa1\x24"
+ "\xe4\x48\x40\xf0\xaa\xac\xee\xa9"
+ "\xfc\x31\xad\x9d\x89\xa3\xbb\xd2"
+ "\xe4\x25\x13\xad\x0f\x5e\xdf\x3c"
+ "\x27\xab\xb8\x62\x46\x22\x30\x48"
+ "\x55\x2c\x4e\x84\x78\x1d\x0d\x34"
+ "\x8d\x3c\x91\x0a\x7f\x5b\x19\x9f"
+ "\x97\x05\x4c\xa7\x62\x47\x8b\xc5"
+ "\x44\x2e\x20\x33\xdd\xa0\x82\xa9"
+ "\x25\x76\x37\xe6\x3c\x67\x5b",
+ .len = 127,
+ }, {
+ .key = "\x1c\x92\x40\xa5\xeb\x55\xd3\x8a"
+ "\xf3\x33\x88\x86\x04\xf6\xb5\xf0"
+ "\x47\x39\x17\xc1\x40\x2b\x80\x09"
+ "\x9d\xca\x5c\xbc\x20\x70\x75\xc0",
+ .klen = 32,
+ .iv = "\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x01\x31\x58\xa3\x5a"
+ "\x25\x5d\x05\x17\x58\xe9\x5e\xd4"
+ "\x1c\x00\x00\x00\x00\x00\x00\x00",
+ .ptext = "\x49\xee\xe0\xdc\x24\x90\x40\xcd"
+ "\xc5\x40\x8f\x47\x05\xbc\xdd\x81"
+ "\x47\xc6\x8d\xe6\xb1\x8f\xd7\xcb"
+ "\x09\x0e\x6e\x22\x48\x1f\xbf\xb8"
+ "\x5c\xf7\x1e\x8a\xc1\x23\xf2\xd4"
+ "\x19\x4b\x01\x0f\x4e\xa4\x43\xce"
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+ "\x72",
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+ "\xdd\x4c\xff\x92\x5c\x6c\xe1\xa0"
+ "\xe3\x79\xa9\x65\x8c\x8c\x14\x42"
+ "\xe5\x11\xd2\x1a\xad\xa9\x56\x6f"
+ "\x98\xfc\x8a\x7b\x56\x1f\xc6\xc1"
+ "\x52\x12\x92\x9b\x41\x0f\x4b\xae"
+ "\x1b\x4a\xbc\xfe\x23\xb6\x94\x70"
+ "\x04\x30\x9e\x69\x47\xbe\xb8\x8f"
+ "\xca\x45\xd7\x8a\xf4\x78\x3e\xaa"
+ "\x71\x17\xd8\x1e\xb8\x11\x8f\xbc"
+ "\xc8\x1a\x65\x7b\x41\x89\x72\xc7"
+ "\x5f\xbe\xc5\x2a\xdb\x5c\x54\xf9"
+ "\x25\xa3\x7a\x80\x56\x9c\x8c\xab"
+ "\x26\x19\x10\x36\xa6\xf3\x14\x79"
+ "\x40\x98\x70\x68\xb7\x35\xd9\xb9"
+ "\x27\xd4\xe7\x74\x5b\x3d\x97\xb4"
+ "\xd9\xaa\xd9\xf2\xb5\x14\x84\x1f"
+ "\xa9\xde\x12\x44\x5b\x00\xc0\xbc"
+ "\xc8\x11\x25\x1b\x67\x7a\x15\x72"
+ "\xa6\x31\x6f\xf4\x68\x7a\x86\x9d"
+ "\x43\x1c\x5f\x16\xd3\xad\x2e\x52"
+ "\xf3\xb4\xc3\xfa\x27\x2e\x68\x6c"
+ "\x06\xe7\x4c\x4f\xa2\xe0\xe4\x21"
+ "\x5d\x9e\x33\x58\x8d\xbf\xd5\x70"
+ "\xf8\x80\xa5\xdd\xe7\x18\x79\xfa"
+ "\x7b\xfd\x09\x69\x2c\x37\x32\xa8"
+ "\x65\xfa\x8d\x8b\x5c\xcc\xe8\xf3"
+ "\x37\xf6\xa6\xc6\x5c\xa2\x66\x79"
+ "\xfa\x8a\xa7\xd1\x0b\x2e\x1b\x5e"
+ "\x95\x35\x00\x76\xae\x42\xf7\x50"
+ "\x51\x78\xfb\xb4\x28\x24\xde\x1a"
+ "\x70\x8b\xed\xca\x3c\x5e\xe4\xbd"
+ "\x28\xb5\xf3\x76\x4f\x67\x5d\x81"
+ "\xb2\x60\x87\xd9\x7b\x19\x1a\xa7"
+ "\x79\xa2\xfa\x3f\x9e\xa9\xd7\x25"
+ "\x61\xe1\x74\x31\xa2\x77\xa0\x1b"
+ "\xf6\xf7\xcb\xc5\xaa\x9e\xce\xf9"
+ "\x9b\x96\xef\x51\xc3\x1a\x44\x96"
+ "\xae\x17\x50\xab\x29\x08\xda\xcc"
+ "\x1a\xb3\x12\xd0\x24\xe4\xe2\xe0"
+ "\xc6\xe3\xcc\x82\xd0\xba\x47\x4c"
+ "\x3f\x49\xd7\xe8\xb6\x61\xaa\x65"
+ "\x25\x18\x40\x2d\x62\x25\x02\x71"
+ "\x61\xa2\xc1\xb2\x13\xd2\x71\x3f"
+ "\x43\x1a\xc9\x09\x92\xff\xd5\x57"
+ "\xf0\xfc\x5e\x1c\xf1\xf5\xf9\xf3"
+ "\x5b",
+ .len = 1281,
+ .also_non_np = 1,
+ .np = 3,
+ .tap = { 1200, 1, 80 },
+ }, {
+ .key = "\x80\x81\x82\x83\x84\x85\x86\x87"
+ "\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f"
+ "\x90\x91\x92\x93\x94\x95\x96\x97"
+ "\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f",
+ .klen = 32,
+ .iv = "\x40\x41\x42\x43\x44\x45\x46\x47"
+ "\x48\x49\x4a\x4b\x4c\x4d\x4e\x4f"
+ "\x50\x51\x52\x53\x54\x55\x56\x58"
+ "\x00\x00\x00\x00\x00\x00\x00\x00",
+ .ptext = "\x54\x68\x65\x20\x64\x68\x6f\x6c"
+ "\x65\x20\x28\x70\x72\x6f\x6e\x6f"
+ "\x75\x6e\x63\x65\x64\x20\x22\x64"
+ "\x6f\x6c\x65\x22\x29\x20\x69\x73"
+ "\x20\x61\x6c\x73\x6f\x20\x6b\x6e"
+ "\x6f\x77\x6e\x20\x61\x73\x20\x74"
+ "\x68\x65\x20\x41\x73\x69\x61\x74"
+ "\x69\x63\x20\x77\x69\x6c\x64\x20"
+ "\x64\x6f\x67\x2c\x20\x72\x65\x64"
+ "\x20\x64\x6f\x67\x2c\x20\x61\x6e"
+ "\x64\x20\x77\x68\x69\x73\x74\x6c"
+ "\x69\x6e\x67\x20\x64\x6f\x67\x2e"
+ "\x20\x49\x74\x20\x69\x73\x20\x61"
+ "\x62\x6f\x75\x74\x20\x74\x68\x65"
+ "\x20\x73\x69\x7a\x65\x20\x6f\x66"
+ "\x20\x61\x20\x47\x65\x72\x6d\x61"
+ "\x6e\x20\x73\x68\x65\x70\x68\x65"
+ "\x72\x64\x20\x62\x75\x74\x20\x6c"
+ "\x6f\x6f\x6b\x73\x20\x6d\x6f\x72"
+ "\x65\x20\x6c\x69\x6b\x65\x20\x61"
+ "\x20\x6c\x6f\x6e\x67\x2d\x6c\x65"
+ "\x67\x67\x65\x64\x20\x66\x6f\x78"
+ "\x2e\x20\x54\x68\x69\x73\x20\x68"
+ "\x69\x67\x68\x6c\x79\x20\x65\x6c"
+ "\x75\x73\x69\x76\x65\x20\x61\x6e"
+ "\x64\x20\x73\x6b\x69\x6c\x6c\x65"
+ "\x64\x20\x6a\x75\x6d\x70\x65\x72"
+ "\x20\x69\x73\x20\x63\x6c\x61\x73"
+ "\x73\x69\x66\x69\x65\x64\x20\x77"
+ "\x69\x74\x68\x20\x77\x6f\x6c\x76"
+ "\x65\x73\x2c\x20\x63\x6f\x79\x6f"
+ "\x74\x65\x73\x2c\x20\x6a\x61\x63"
+ "\x6b\x61\x6c\x73\x2c\x20\x61\x6e"
+ "\x64\x20\x66\x6f\x78\x65\x73\x20"
+ "\x69\x6e\x20\x74\x68\x65\x20\x74"
+ "\x61\x78\x6f\x6e\x6f\x6d\x69\x63"
+ "\x20\x66\x61\x6d\x69\x6c\x79\x20"
+ "\x43\x61\x6e\x69\x64\x61\x65\x2e",
+ .ctext = "\x9f\x1a\xab\x8a\x95\xf4\x7e\xcd"
+ "\xee\x34\xc0\x39\xd6\x23\x43\x94"
+ "\xf6\x01\xc1\x7f\x60\x91\xa5\x23"
+ "\x4a\x8a\xe6\xb1\x14\x8b\xd7\x58"
+ "\xee\x02\xad\xab\xce\x1e\x7d\xdf"
+ "\xf9\x49\x27\x69\xd0\x8d\x0c\x20"
+ "\x6e\x17\xc4\xae\x87\x7a\xc6\x61"
+ "\x91\xe2\x8e\x0a\x1d\x61\xcc\x38"
+ "\x02\x64\x43\x49\xc6\xb2\x59\x59"
+ "\x42\xe7\x9d\x83\x00\x60\x90\xd2"
+ "\xb9\xcd\x97\x6e\xc7\x95\x71\xbc"
+ "\x23\x31\x58\x07\xb3\xb4\xac\x0b"
+ "\x87\x64\x56\xe5\xe3\xec\x63\xa1"
+ "\x71\x8c\x08\x48\x33\x20\x29\x81"
+ "\xea\x01\x25\x20\xc3\xda\xe6\xee"
+ "\x6a\x03\xf6\x68\x4d\x26\xa0\x91"
+ "\x9e\x44\xb8\xc1\xc0\x8f\x5a\x6a"
+ "\xc0\xcd\xbf\x24\x5e\x40\x66\xd2"
+ "\x42\x24\xb5\xbf\xc1\xeb\x12\x60"
+ "\x56\xbe\xb1\xa6\xc4\x0f\xfc\x49"
+ "\x69\x9f\xcc\x06\x5c\xe3\x26\xd7"
+ "\x52\xc0\x42\xe8\xb4\x76\xc3\xee"
+ "\xb2\x97\xe3\x37\x61\x29\x5a\xb5"
+ "\x8e\xe8\x8c\xc5\x38\xcc\xcb\xec"
+ "\x64\x1a\xa9\x12\x5f\xf7\x79\xdf"
+ "\x64\xca\x77\x4e\xbd\xf9\x83\xa0"
+ "\x13\x27\x3f\x31\x03\x63\x30\x26"
+ "\x27\x0b\x3e\xb3\x23\x13\x61\x0b"
+ "\x70\x1d\xd4\xad\x85\x1e\xbf\xdf"
+ "\xc6\x8e\x4d\x08\xcc\x7e\x77\xbd"
+ "\x1e\x18\x77\x38\x3a\xfe\xc0\x5d"
+ "\x16\xfc\xf0\xa9\x2f\xe9\x17\xc7"
+ "\xd3\x23\x17\x18\xa3\xe6\x54\x77"
+ "\x6f\x1b\xbe\x8a\x6e\x7e\xca\x97"
+ "\x08\x05\x36\x76\xaf\x12\x7a\x42"
+ "\xf7\x7a\xc2\x35\xc3\xb4\x93\x40"
+ "\x54\x14\x90\xa0\x4d\x65\x1c\x37"
+ "\x50\x70\x44\x29\x6d\x6e\x62\x68",
+ .len = 304,
+ }
+};
+
+/* Adiantum test vectors from https://github.com/google/adiantum */
+static const struct cipher_testvec adiantum_xchacha12_aes_tv_template[] = {
+ {
+ .key = "\x9e\xeb\xb2\x49\x3c\x1c\xf5\xf4"
+ "\x6a\x99\xc2\xc4\xdf\xb1\xf4\xdd"
+ "\x75\x20\x57\xea\x2c\x4f\xcd\xb2"
+ "\xa5\x3d\x7b\x49\x1e\xab\xfd\x0f",
+ .klen = 32,
+ .iv = "\xdf\x63\xd4\xab\xd2\x49\xf3\xd8"
+ "\x33\x81\x37\x60\x7d\xfa\x73\x08"
+ "\xd8\x49\x6d\x80\xe8\x2f\x62\x54"
+ "\xeb\x0e\xa9\x39\x5b\x45\x7f\x8a",
+ .ptext = "\x67\xc9\xf2\x30\x84\x41\x8e\x43"
+ "\xfb\xf3\xb3\x3e\x79\x36\x7f\xe8",
+ .ctext = "\x6d\x32\x86\x18\x67\x86\x0f\x3f"
+ "\x96\x7c\x9d\x28\x0d\x53\xec\x9f",
+ .len = 16,
+ .also_non_np = 1,
+ .np = 2,
+ .tap = { 14, 2 },
+ }, {
+ .key = "\x36\x2b\x57\x97\xf8\x5d\xcd\x99"
+ "\x5f\x1a\x5a\x44\x1d\x92\x0f\x27"
+ "\xcc\x16\xd7\x2b\x85\x63\x99\xd3"
+ "\xba\x96\xa1\xdb\xd2\x60\x68\xda",
+ .klen = 32,
+ .iv = "\xef\x58\x69\xb1\x2c\x5e\x9a\x47"
+ "\x24\xc1\xb1\x69\xe1\x12\x93\x8f"
+ "\x43\x3d\x6d\x00\xdb\x5e\xd8\xd9"
+ "\x12\x9a\xfe\xd9\xff\x2d\xaa\xc4",
+ .ptext = "\x5e\xa8\x68\x19\x85\x98\x12\x23"
+ "\x26\x0a\xcc\xdb\x0a\x04\xb9\xdf"
+ "\x4d\xb3\x48\x7b\xb0\xe3\xc8\x19"
+ "\x43\x5a\x46\x06\x94\x2d\xf2",
+ .ctext = "\xc7\xc6\xf1\x73\x8f\xc4\xff\x4a"
+ "\x39\xbe\x78\xbe\x8d\x28\xc8\x89"
+ "\x46\x63\xe7\x0c\x7d\x87\xe8\x4e"
+ "\xc9\x18\x7b\xbe\x18\x60\x50",
+ .len = 31,
+ }, {
+ .key = "\xa5\x28\x24\x34\x1a\x3c\xd8\xf7"
+ "\x05\x91\x8f\xee\x85\x1f\x35\x7f"
+ "\x80\x3d\xfc\x9b\x94\xf6\xfc\x9e"
+ "\x19\x09\x00\xa9\x04\x31\x4f\x11",
+ .klen = 32,
+ .iv = "\xa1\xba\x49\x95\xff\x34\x6d\xb8"
+ "\xcd\x87\x5d\x5e\xfd\xea\x85\xdb"
+ "\x8a\x7b\x5e\xb2\x5d\x57\xdd\x62"
+ "\xac\xa9\x8c\x41\x42\x94\x75\xb7",
+ .ptext = "\x69\xb4\xe8\x8c\x37\xe8\x67\x82"
+ "\xf1\xec\x5d\x04\xe5\x14\x91\x13"
+ "\xdf\xf2\x87\x1b\x69\x81\x1d\x71"
+ "\x70\x9e\x9c\x3b\xde\x49\x70\x11"
+ "\xa0\xa3\xdb\x0d\x54\x4f\x66\x69"
+ "\xd7\xdb\x80\xa7\x70\x92\x68\xce"
+ "\x81\x04\x2c\xc6\xab\xae\xe5\x60"
+ "\x15\xe9\x6f\xef\xaa\x8f\xa7\xa7"
+ "\x63\x8f\xf2\xf0\x77\xf1\xa8\xea"
+ "\xe1\xb7\x1f\x9e\xab\x9e\x4b\x3f"
+ "\x07\x87\x5b\x6f\xcd\xa8\xaf\xb9"
+ "\xfa\x70\x0b\x52\xb8\xa8\xa7\x9e"
+ "\x07\x5f\xa6\x0e\xb3\x9b\x79\x13"
+ "\x79\xc3\x3e\x8d\x1c\x2c\x68\xc8"
+ "\x51\x1d\x3c\x7b\x7d\x79\x77\x2a"
+ "\x56\x65\xc5\x54\x23\x28\xb0\x03",
+ .ctext = "\x9e\x16\xab\xed\x4b\xa7\x42\x5a"
+ "\xc6\xfb\x4e\x76\xff\xbe\x03\xa0"
+ "\x0f\xe3\xad\xba\xe4\x98\x2b\x0e"
+ "\x21\x48\xa0\xb8\x65\x48\x27\x48"
+ "\x84\x54\x54\xb2\x9a\x94\x7b\xe6"
+ "\x4b\x29\xe9\xcf\x05\x91\x80\x1a"
+ "\x3a\xf3\x41\x96\x85\x1d\x9f\x74"
+ "\x51\x56\x63\xfa\x7c\x28\x85\x49"
+ "\xf7\x2f\xf9\xf2\x18\x46\xf5\x33"
+ "\x80\xa3\x3c\xce\xb2\x57\x93\xf5"
+ "\xae\xbd\xa9\xf5\x7b\x30\xc4\x93"
+ "\x66\xe0\x30\x77\x16\xe4\xa0\x31"
+ "\xba\x70\xbc\x68\x13\xf5\xb0\x9a"
+ "\xc1\xfc\x7e\xfe\x55\x80\x5c\x48"
+ "\x74\xa6\xaa\xa3\xac\xdc\xc2\xf5"
+ "\x8d\xde\x34\x86\x78\x60\x75\x8d",
+ .len = 128,
+ .also_non_np = 1,
+ .np = 4,
+ .tap = { 104, 16, 4, 4 },
+ }, {
+ .key = "\xd3\x81\x72\x18\x23\xff\x6f\x4a"
+ "\x25\x74\x29\x0d\x51\x8a\x0e\x13"
+ "\xc1\x53\x5d\x30\x8d\xee\x75\x0d"
+ "\x14\xd6\x69\xc9\x15\xa9\x0c\x60",
+ .klen = 32,
+ .iv = "\x65\x9b\xd4\xa8\x7d\x29\x1d\xf4"
+ "\xc4\xd6\x9b\x6a\x28\xab\x64\xe2"
+ "\x62\x81\x97\xc5\x81\xaa\xf9\x44"
+ "\xc1\x72\x59\x82\xaf\x16\xc8\x2c",
+ .ptext = "\xc7\x6b\x52\x6a\x10\xf0\xcc\x09"
+ "\xc1\x12\x1d\x6d\x21\xa6\x78\xf5"
+ "\x05\xa3\x69\x60\x91\x36\x98\x57"
+ "\xba\x0c\x14\xcc\xf3\x2d\x73\x03"
+ "\xc6\xb2\x5f\xc8\x16\x27\x37\x5d"
+ "\xd0\x0b\x87\xb2\x50\x94\x7b\x58"
+ "\x04\xf4\xe0\x7f\x6e\x57\x8e\xc9"
+ "\x41\x84\xc1\xb1\x7e\x4b\x91\x12"
+ "\x3a\x8b\x5d\x50\x82\x7b\xcb\xd9"
+ "\x9a\xd9\x4e\x18\x06\x23\x9e\xd4"
+ "\xa5\x20\x98\xef\xb5\xda\xe5\xc0"
+ "\x8a\x6a\x83\x77\x15\x84\x1e\xae"
+ "\x78\x94\x9d\xdf\xb7\xd1\xea\x67"
+ "\xaa\xb0\x14\x15\xfa\x67\x21\x84"
+ "\xd3\x41\x2a\xce\xba\x4b\x4a\xe8"
+ "\x95\x62\xa9\x55\xf0\x80\xad\xbd"
+ "\xab\xaf\xdd\x4f\xa5\x7c\x13\x36"
+ "\xed\x5e\x4f\x72\xad\x4b\xf1\xd0"
+ "\x88\x4e\xec\x2c\x88\x10\x5e\xea"
+ "\x12\xc0\x16\x01\x29\xa3\xa0\x55"
+ "\xaa\x68\xf3\xe9\x9d\x3b\x0d\x3b"
+ "\x6d\xec\xf8\xa0\x2d\xf0\x90\x8d"
+ "\x1c\xe2\x88\xd4\x24\x71\xf9\xb3"
+ "\xc1\x9f\xc5\xd6\x76\x70\xc5\x2e"
+ "\x9c\xac\xdb\x90\xbd\x83\x72\xba"
+ "\x6e\xb5\xa5\x53\x83\xa9\xa5\xbf"
+ "\x7d\x06\x0e\x3c\x2a\xd2\x04\xb5"
+ "\x1e\x19\x38\x09\x16\xd2\x82\x1f"
+ "\x75\x18\x56\xb8\x96\x0b\xa6\xf9"
+ "\xcf\x62\xd9\x32\x5d\xa9\xd7\x1d"
+ "\xec\xe4\xdf\x1b\xbe\xf1\x36\xee"
+ "\xe3\x7b\xb5\x2f\xee\xf8\x53\x3d"
+ "\x6a\xb7\x70\xa9\xfc\x9c\x57\x25"
+ "\xf2\x89\x10\xd3\xb8\xa8\x8c\x30"
+ "\xae\x23\x4f\x0e\x13\x66\x4f\xe1"
+ "\xb6\xc0\xe4\xf8\xef\x93\xbd\x6e"
+ "\x15\x85\x6b\xe3\x60\x81\x1d\x68"
+ "\xd7\x31\x87\x89\x09\xab\xd5\x96"
+ "\x1d\xf3\x6d\x67\x80\xca\x07\x31"
+ "\x5d\xa7\xe4\xfb\x3e\xf2\x9b\x33"
+ "\x52\x18\xc8\x30\xfe\x2d\xca\x1e"
+ "\x79\x92\x7a\x60\x5c\xb6\x58\x87"
+ "\xa4\x36\xa2\x67\x92\x8b\xa4\xb7"
+ "\xf1\x86\xdf\xdc\xc0\x7e\x8f\x63"
+ "\xd2\xa2\xdc\x78\xeb\x4f\xd8\x96"
+ "\x47\xca\xb8\x91\xf9\xf7\x94\x21"
+ "\x5f\x9a\x9f\x5b\xb8\x40\x41\x4b"
+ "\x66\x69\x6a\x72\xd0\xcb\x70\xb7"
+ "\x93\xb5\x37\x96\x05\x37\x4f\xe5"
+ "\x8c\xa7\x5a\x4e\x8b\xb7\x84\xea"
+ "\xc7\xfc\x19\x6e\x1f\x5a\xa1\xac"
+ "\x18\x7d\x52\x3b\xb3\x34\x62\x99"
+ "\xe4\x9e\x31\x04\x3f\xc0\x8d\x84"
+ "\x17\x7c\x25\x48\x52\x67\x11\x27"
+ "\x67\xbb\x5a\x85\xca\x56\xb2\x5c"
+ "\xe6\xec\xd5\x96\x3d\x15\xfc\xfb"
+ "\x22\x25\xf4\x13\xe5\x93\x4b\x9a"
+ "\x77\xf1\x52\x18\xfa\x16\x5e\x49"
+ "\x03\x45\xa8\x08\xfa\xb3\x41\x92"
+ "\x79\x50\x33\xca\xd0\xd7\x42\x55"
+ "\xc3\x9a\x0c\x4e\xd9\xa4\x3c\x86"
+ "\x80\x9f\x53\xd1\xa4\x2e\xd1\xbc"
+ "\xf1\x54\x6e\x93\xa4\x65\x99\x8e"
+ "\xdf\x29\xc0\x64\x63\x07\xbb\xea",
+ .ctext = "\x15\x97\xd0\x86\x18\x03\x9c\x51"
+ "\xc5\x11\x36\x62\x13\x92\xe6\x73"
+ "\x29\x79\xde\xa1\x00\x3e\x08\x64"
+ "\x17\x1a\xbc\xd5\xfe\x33\x0e\x0c"
+ "\x7c\x94\xa7\xc6\x3c\xbe\xac\xa2"
+ "\x89\xe6\xbc\xdf\x0c\x33\x27\x42"
+ "\x46\x73\x2f\xba\x4e\xa6\x46\x8f"
+ "\xe4\xee\x39\x63\x42\x65\xa3\x88"
+ "\x7a\xad\x33\x23\xa9\xa7\x20\x7f"
+ "\x0b\xe6\x6a\xc3\x60\xda\x9e\xb4"
+ "\xd6\x07\x8a\x77\x26\xd1\xab\x44"
+ "\x99\x55\x03\x5e\xed\x8d\x7b\xbd"
+ "\xc8\x21\xb7\x21\x30\x3f\xc0\xb5"
+ "\xc8\xec\x6c\x23\xa6\xa3\x6d\xf1"
+ "\x30\x0a\xd0\xa6\xa9\x28\x69\xae"
+ "\x2a\xe6\x54\xac\x82\x9d\x6a\x95"
+ "\x6f\x06\x44\xc5\x5a\x77\x6e\xec"
+ "\xf8\xf8\x63\xb2\xe6\xaa\xbd\x8e"
+ "\x0e\x8a\x62\x00\x03\xc8\x84\xdd"
+ "\x47\x4a\xc3\x55\xba\xb7\xe7\xdf"
+ "\x08\xbf\x62\xf5\xe8\xbc\xb6\x11"
+ "\xe4\xcb\xd0\x66\x74\x32\xcf\xd4"
+ "\xf8\x51\x80\x39\x14\x05\x12\xdb"
+ "\x87\x93\xe2\x26\x30\x9c\x3a\x21"
+ "\xe5\xd0\x38\x57\x80\x15\xe4\x08"
+ "\x58\x05\x49\x7d\xe6\x92\x77\x70"
+ "\xfb\x1e\x2d\x6a\x84\x00\xc8\x68"
+ "\xf7\x1a\xdd\xf0\x7b\x38\x1e\xd8"
+ "\x2c\x78\x78\x61\xcf\xe3\xde\x69"
+ "\x1f\xd5\x03\xd5\x1a\xb4\xcf\x03"
+ "\xc8\x7a\x70\x68\x35\xb4\xf6\xbe"
+ "\x90\x62\xb2\x28\x99\x86\xf5\x44"
+ "\x99\xeb\x31\xcf\xca\xdf\xd0\x21"
+ "\xd6\x60\xf7\x0f\x40\xb4\x80\xb7"
+ "\xab\xe1\x9b\x45\xba\x66\xda\xee"
+ "\xdd\x04\x12\x40\x98\xe1\x69\xe5"
+ "\x2b\x9c\x59\x80\xe7\x7b\xcc\x63"
+ "\xa6\xc0\x3a\xa9\xfe\x8a\xf9\x62"
+ "\x11\x34\x61\x94\x35\xfe\xf2\x99"
+ "\xfd\xee\x19\xea\x95\xb6\x12\xbf"
+ "\x1b\xdf\x02\x1a\xcc\x3e\x7e\x65"
+ "\x78\x74\x10\x50\x29\x63\x28\xea"
+ "\x6b\xab\xd4\x06\x4d\x15\x24\x31"
+ "\xc7\x0a\xc9\x16\xb6\x48\xf0\xbf"
+ "\x49\xdb\x68\x71\x31\x8f\x87\xe2"
+ "\x13\x05\x64\xd6\x22\x0c\xf8\x36"
+ "\x84\x24\x3e\x69\x5e\xb8\x9e\x16"
+ "\x73\x6c\x83\x1e\xe0\x9f\x9e\xba"
+ "\xe5\x59\x21\x33\x1b\xa9\x26\xc2"
+ "\xc7\xd9\x30\x73\xb6\xa6\x73\x82"
+ "\x19\xfa\x44\x4d\x40\x8b\x69\x04"
+ "\x94\x74\xea\x6e\xb3\x09\x47\x01"
+ "\x2a\xb9\x78\x34\x43\x11\xed\xd6"
+ "\x8c\x95\x65\x1b\x85\x67\xa5\x40"
+ "\xac\x9c\x05\x4b\x57\x4a\xa9\x96"
+ "\x0f\xdd\x4f\xa1\xe0\xcf\x6e\xc7"
+ "\x1b\xed\xa2\xb4\x56\x8c\x09\x6e"
+ "\xa6\x65\xd7\x55\x81\xb7\xed\x11"
+ "\x9b\x40\x75\xa8\x6b\x56\xaf\x16"
+ "\x8b\x3d\xf4\xcb\xfe\xd5\x1d\x3d"
+ "\x85\xc2\xc0\xde\x43\x39\x4a\x96"
+ "\xba\x88\x97\xc0\xd6\x00\x0e\x27"
+ "\x21\xb0\x21\x52\xba\xa7\x37\xaa"
+ "\xcc\xbf\x95\xa8\xf4\xd0\x91\xf6",
+ .len = 512,
+ .also_non_np = 1,
+ .np = 2,
+ .tap = { 144, 368 },
+ }
+};
+
+/* Adiantum with XChaCha20 instead of XChaCha12 */
+/* Test vectors from https://github.com/google/adiantum */
+static const struct cipher_testvec adiantum_xchacha20_aes_tv_template[] = {
+ {
+ .key = "\x9e\xeb\xb2\x49\x3c\x1c\xf5\xf4"
+ "\x6a\x99\xc2\xc4\xdf\xb1\xf4\xdd"
+ "\x75\x20\x57\xea\x2c\x4f\xcd\xb2"
+ "\xa5\x3d\x7b\x49\x1e\xab\xfd\x0f",
+ .klen = 32,
+ .iv = "\xdf\x63\xd4\xab\xd2\x49\xf3\xd8"
+ "\x33\x81\x37\x60\x7d\xfa\x73\x08"
+ "\xd8\x49\x6d\x80\xe8\x2f\x62\x54"
+ "\xeb\x0e\xa9\x39\x5b\x45\x7f\x8a",
+ .ptext = "\x67\xc9\xf2\x30\x84\x41\x8e\x43"
+ "\xfb\xf3\xb3\x3e\x79\x36\x7f\xe8",
+ .ctext = "\xf6\x78\x97\xd6\xaa\x94\x01\x27"
+ "\x2e\x4d\x83\xe0\x6e\x64\x9a\xdf",
+ .len = 16,
+ .also_non_np = 1,
+ .np = 3,
+ .tap = { 5, 2, 9 },
+ }, {
+ .key = "\x36\x2b\x57\x97\xf8\x5d\xcd\x99"
+ "\x5f\x1a\x5a\x44\x1d\x92\x0f\x27"
+ "\xcc\x16\xd7\x2b\x85\x63\x99\xd3"
+ "\xba\x96\xa1\xdb\xd2\x60\x68\xda",
+ .klen = 32,
+ .iv = "\xef\x58\x69\xb1\x2c\x5e\x9a\x47"
+ "\x24\xc1\xb1\x69\xe1\x12\x93\x8f"
+ "\x43\x3d\x6d\x00\xdb\x5e\xd8\xd9"
+ "\x12\x9a\xfe\xd9\xff\x2d\xaa\xc4",
+ .ptext = "\x5e\xa8\x68\x19\x85\x98\x12\x23"
+ "\x26\x0a\xcc\xdb\x0a\x04\xb9\xdf"
+ "\x4d\xb3\x48\x7b\xb0\xe3\xc8\x19"
+ "\x43\x5a\x46\x06\x94\x2d\xf2",
+ .ctext = "\x4b\xb8\x90\x10\xdf\x7f\x64\x08"
+ "\x0e\x14\x42\x5f\x00\x74\x09\x36"
+ "\x57\x72\xb5\xfd\xb5\x5d\xb8\x28"
+ "\x0c\x04\x91\x14\x91\xe9\x37",
+ .len = 31,
+ .also_non_np = 1,
+ .np = 2,
+ .tap = { 16, 15 },
+ }, {
+ .key = "\xa5\x28\x24\x34\x1a\x3c\xd8\xf7"
+ "\x05\x91\x8f\xee\x85\x1f\x35\x7f"
+ "\x80\x3d\xfc\x9b\x94\xf6\xfc\x9e"
+ "\x19\x09\x00\xa9\x04\x31\x4f\x11",
+ .klen = 32,
+ .iv = "\xa1\xba\x49\x95\xff\x34\x6d\xb8"
+ "\xcd\x87\x5d\x5e\xfd\xea\x85\xdb"
+ "\x8a\x7b\x5e\xb2\x5d\x57\xdd\x62"
+ "\xac\xa9\x8c\x41\x42\x94\x75\xb7",
+ .ptext = "\x69\xb4\xe8\x8c\x37\xe8\x67\x82"
+ "\xf1\xec\x5d\x04\xe5\x14\x91\x13"
+ "\xdf\xf2\x87\x1b\x69\x81\x1d\x71"
+ "\x70\x9e\x9c\x3b\xde\x49\x70\x11"
+ "\xa0\xa3\xdb\x0d\x54\x4f\x66\x69"
+ "\xd7\xdb\x80\xa7\x70\x92\x68\xce"
+ "\x81\x04\x2c\xc6\xab\xae\xe5\x60"
+ "\x15\xe9\x6f\xef\xaa\x8f\xa7\xa7"
+ "\x63\x8f\xf2\xf0\x77\xf1\xa8\xea"
+ "\xe1\xb7\x1f\x9e\xab\x9e\x4b\x3f"
+ "\x07\x87\x5b\x6f\xcd\xa8\xaf\xb9"
+ "\xfa\x70\x0b\x52\xb8\xa8\xa7\x9e"
+ "\x07\x5f\xa6\x0e\xb3\x9b\x79\x13"
+ "\x79\xc3\x3e\x8d\x1c\x2c\x68\xc8"
+ "\x51\x1d\x3c\x7b\x7d\x79\x77\x2a"
+ "\x56\x65\xc5\x54\x23\x28\xb0\x03",
+ .ctext = "\xb1\x8b\xa0\x05\x77\xa8\x4d\x59"
+ "\x1b\x8e\x21\xfc\x3a\x49\xfa\xd4"
+ "\xeb\x36\xf3\xc4\xdf\xdc\xae\x67"
+ "\x07\x3f\x70\x0e\xe9\x66\xf5\x0c"
+ "\x30\x4d\x66\xc9\xa4\x2f\x73\x9c"
+ "\x13\xc8\x49\x44\xcc\x0a\x90\x9d"
+ "\x7c\xdd\x19\x3f\xea\x72\x8d\x58"
+ "\xab\xe7\x09\x2c\xec\xb5\x44\xd2"
+ "\xca\xa6\x2d\x7a\x5c\x9c\x2b\x15"
+ "\xec\x2a\xa6\x69\x91\xf9\xf3\x13"
+ "\xf7\x72\xc1\xc1\x40\xd5\xe1\x94"
+ "\xf4\x29\xa1\x3e\x25\x02\xa8\x3e"
+ "\x94\xc1\x91\x14\xa1\x14\xcb\xbe"
+ "\x67\x4c\xb9\x38\xfe\xa7\xaa\x32"
+ "\x29\x62\x0d\xb2\xf6\x3c\x58\x57"
+ "\xc1\xd5\x5a\xbb\xd6\xa6\x2a\xe5",
+ .len = 128,
+ .also_non_np = 1,
+ .np = 4,
+ .tap = { 112, 7, 8, 1 },
+ }, {
+ .key = "\xd3\x81\x72\x18\x23\xff\x6f\x4a"
+ "\x25\x74\x29\x0d\x51\x8a\x0e\x13"
+ "\xc1\x53\x5d\x30\x8d\xee\x75\x0d"
+ "\x14\xd6\x69\xc9\x15\xa9\x0c\x60",
+ .klen = 32,
+ .iv = "\x65\x9b\xd4\xa8\x7d\x29\x1d\xf4"
+ "\xc4\xd6\x9b\x6a\x28\xab\x64\xe2"
+ "\x62\x81\x97\xc5\x81\xaa\xf9\x44"
+ "\xc1\x72\x59\x82\xaf\x16\xc8\x2c",
+ .ptext = "\xc7\x6b\x52\x6a\x10\xf0\xcc\x09"
+ "\xc1\x12\x1d\x6d\x21\xa6\x78\xf5"
+ "\x05\xa3\x69\x60\x91\x36\x98\x57"
+ "\xba\x0c\x14\xcc\xf3\x2d\x73\x03"
+ "\xc6\xb2\x5f\xc8\x16\x27\x37\x5d"
+ "\xd0\x0b\x87\xb2\x50\x94\x7b\x58"
+ "\x04\xf4\xe0\x7f\x6e\x57\x8e\xc9"
+ "\x41\x84\xc1\xb1\x7e\x4b\x91\x12"
+ "\x3a\x8b\x5d\x50\x82\x7b\xcb\xd9"
+ "\x9a\xd9\x4e\x18\x06\x23\x9e\xd4"
+ "\xa5\x20\x98\xef\xb5\xda\xe5\xc0"
+ "\x8a\x6a\x83\x77\x15\x84\x1e\xae"
+ "\x78\x94\x9d\xdf\xb7\xd1\xea\x67"
+ "\xaa\xb0\x14\x15\xfa\x67\x21\x84"
+ "\xd3\x41\x2a\xce\xba\x4b\x4a\xe8"
+ "\x95\x62\xa9\x55\xf0\x80\xad\xbd"
+ "\xab\xaf\xdd\x4f\xa5\x7c\x13\x36"
+ "\xed\x5e\x4f\x72\xad\x4b\xf1\xd0"
+ "\x88\x4e\xec\x2c\x88\x10\x5e\xea"
+ "\x12\xc0\x16\x01\x29\xa3\xa0\x55"
+ "\xaa\x68\xf3\xe9\x9d\x3b\x0d\x3b"
+ "\x6d\xec\xf8\xa0\x2d\xf0\x90\x8d"
+ "\x1c\xe2\x88\xd4\x24\x71\xf9\xb3"
+ "\xc1\x9f\xc5\xd6\x76\x70\xc5\x2e"
+ "\x9c\xac\xdb\x90\xbd\x83\x72\xba"
+ "\x6e\xb5\xa5\x53\x83\xa9\xa5\xbf"
+ "\x7d\x06\x0e\x3c\x2a\xd2\x04\xb5"
+ "\x1e\x19\x38\x09\x16\xd2\x82\x1f"
+ "\x75\x18\x56\xb8\x96\x0b\xa6\xf9"
+ "\xcf\x62\xd9\x32\x5d\xa9\xd7\x1d"
+ "\xec\xe4\xdf\x1b\xbe\xf1\x36\xee"
+ "\xe3\x7b\xb5\x2f\xee\xf8\x53\x3d"
+ "\x6a\xb7\x70\xa9\xfc\x9c\x57\x25"
+ "\xf2\x89\x10\xd3\xb8\xa8\x8c\x30"
+ "\xae\x23\x4f\x0e\x13\x66\x4f\xe1"
+ "\xb6\xc0\xe4\xf8\xef\x93\xbd\x6e"
+ "\x15\x85\x6b\xe3\x60\x81\x1d\x68"
+ "\xd7\x31\x87\x89\x09\xab\xd5\x96"
+ "\x1d\xf3\x6d\x67\x80\xca\x07\x31"
+ "\x5d\xa7\xe4\xfb\x3e\xf2\x9b\x33"
+ "\x52\x18\xc8\x30\xfe\x2d\xca\x1e"
+ "\x79\x92\x7a\x60\x5c\xb6\x58\x87"
+ "\xa4\x36\xa2\x67\x92\x8b\xa4\xb7"
+ "\xf1\x86\xdf\xdc\xc0\x7e\x8f\x63"
+ "\xd2\xa2\xdc\x78\xeb\x4f\xd8\x96"
+ "\x47\xca\xb8\x91\xf9\xf7\x94\x21"
+ "\x5f\x9a\x9f\x5b\xb8\x40\x41\x4b"
+ "\x66\x69\x6a\x72\xd0\xcb\x70\xb7"
+ "\x93\xb5\x37\x96\x05\x37\x4f\xe5"
+ "\x8c\xa7\x5a\x4e\x8b\xb7\x84\xea"
+ "\xc7\xfc\x19\x6e\x1f\x5a\xa1\xac"
+ "\x18\x7d\x52\x3b\xb3\x34\x62\x99"
+ "\xe4\x9e\x31\x04\x3f\xc0\x8d\x84"
+ "\x17\x7c\x25\x48\x52\x67\x11\x27"
+ "\x67\xbb\x5a\x85\xca\x56\xb2\x5c"
+ "\xe6\xec\xd5\x96\x3d\x15\xfc\xfb"
+ "\x22\x25\xf4\x13\xe5\x93\x4b\x9a"
+ "\x77\xf1\x52\x18\xfa\x16\x5e\x49"
+ "\x03\x45\xa8\x08\xfa\xb3\x41\x92"
+ "\x79\x50\x33\xca\xd0\xd7\x42\x55"
+ "\xc3\x9a\x0c\x4e\xd9\xa4\x3c\x86"
+ "\x80\x9f\x53\xd1\xa4\x2e\xd1\xbc"
+ "\xf1\x54\x6e\x93\xa4\x65\x99\x8e"
+ "\xdf\x29\xc0\x64\x63\x07\xbb\xea",
+ .ctext = "\xe0\x33\xf6\xe0\xb4\xa5\xdd\x2b"
+ "\xdd\xce\xfc\x12\x1e\xfc\x2d\xf2"
+ "\x8b\xc7\xeb\xc1\xc4\x2a\xe8\x44"
+ "\x0f\x3d\x97\x19\x2e\x6d\xa2\x38"
+ "\x9d\xa6\xaa\xe1\x96\xb9\x08\xe8"
+ "\x0b\x70\x48\x5c\xed\xb5\x9b\xcb"
+ "\x8b\x40\x88\x7e\x69\x73\xf7\x16"
+ "\x71\xbb\x5b\xfc\xa3\x47\x5d\xa6"
+ "\xae\x3a\x64\xc4\xe7\xb8\xa8\xe7"
+ "\xb1\x32\x19\xdb\xe3\x01\xb8\xf0"
+ "\xa4\x86\xb4\x4c\xc2\xde\x5c\xd2"
+ "\x6c\x77\xd2\xe8\x18\xb7\x0a\xc9"
+ "\x3d\x53\xb5\xc4\x5c\xf0\x8c\x06"
+ "\xdc\x90\xe0\x74\x47\x1b\x0b\xf6"
+ "\xd2\x71\x6b\xc4\xf1\x97\x00\x2d"
+ "\x63\x57\x44\x1f\x8c\xf4\xe6\x9b"
+ "\xe0\x7a\xdd\xec\x32\x73\x42\x32"
+ "\x7f\x35\x67\x60\x0d\xcf\x10\x52"
+ "\x61\x22\x53\x8d\x8e\xbb\x33\x76"
+ "\x59\xd9\x10\xce\xdf\xef\xc0\x41"
+ "\xd5\x33\x29\x6a\xda\x46\xa4\x51"
+ "\xf0\x99\x3d\x96\x31\xdd\xb5\xcb"
+ "\x3e\x2a\x1f\xc7\x5c\x79\xd3\xc5"
+ "\x20\xa1\xb1\x39\x1b\xc6\x0a\x70"
+ "\x26\x39\x95\x07\xad\x7a\xc9\x69"
+ "\xfe\x81\xc7\x88\x08\x38\xaf\xad"
+ "\x9e\x8d\xfb\xe8\x24\x0d\x22\xb8"
+ "\x0e\xed\xbe\x37\x53\x7c\xa6\xc6"
+ "\x78\x62\xec\xa3\x59\xd9\xc6\x9d"
+ "\xb8\x0e\x69\x77\x84\x2d\x6a\x4c"
+ "\xc5\xd9\xb2\xa0\x2b\xa8\x80\xcc"
+ "\xe9\x1e\x9c\x5a\xc4\xa1\xb2\x37"
+ "\x06\x9b\x30\x32\x67\xf7\xe7\xd2"
+ "\x42\xc7\xdf\x4e\xd4\xcb\xa0\x12"
+ "\x94\xa1\x34\x85\x93\x50\x4b\x0a"
+ "\x3c\x7d\x49\x25\x01\x41\x6b\x96"
+ "\xa9\x12\xbb\x0b\xc0\xd7\xd0\x93"
+ "\x1f\x70\x38\xb8\x21\xee\xf6\xa7"
+ "\xee\xeb\xe7\x81\xa4\x13\xb4\x87"
+ "\xfa\xc1\xb0\xb5\x37\x8b\x74\xa2"
+ "\x4e\xc7\xc2\xad\x3d\x62\x3f\xf8"
+ "\x34\x42\xe5\xae\x45\x13\x63\xfe"
+ "\xfc\x2a\x17\x46\x61\xa9\xd3\x1c"
+ "\x4c\xaf\xf0\x09\x62\x26\x66\x1e"
+ "\x74\xcf\xd6\x68\x3d\x7d\xd8\xb7"
+ "\xe7\xe6\xf8\xf0\x08\x20\xf7\x47"
+ "\x1c\x52\xaa\x0f\x3e\x21\xa3\xf2"
+ "\xbf\x2f\x95\x16\xa8\xc8\xc8\x8c"
+ "\x99\x0f\x5d\xfb\xfa\x2b\x58\x8a"
+ "\x7e\xd6\x74\x02\x60\xf0\xd0\x5b"
+ "\x65\xa8\xac\xea\x8d\x68\x46\x34"
+ "\x26\x9d\x4f\xb1\x9a\x8e\xc0\x1a"
+ "\xf1\xed\xc6\x7a\x83\xfd\x8a\x57"
+ "\xf2\xe6\xe4\xba\xfc\xc6\x3c\xad"
+ "\x5b\x19\x50\x2f\x3a\xcc\x06\x46"
+ "\x04\x51\x3f\x91\x97\xf0\xd2\x07"
+ "\xe7\x93\x89\x7e\xb5\x32\x0f\x03"
+ "\xe5\x58\x9e\x74\x72\xeb\xc2\x38"
+ "\x00\x0c\x91\x72\x69\xed\x7d\x6d"
+ "\xc8\x71\xf0\xec\xff\x80\xd9\x1c"
+ "\x9e\xd2\xfa\x15\xfc\x6c\x4e\xbc"
+ "\xb1\xa6\xbd\xbd\x70\x40\xca\x20"
+ "\xb8\x78\xd2\xa3\xc6\xf3\x79\x9c"
+ "\xc7\x27\xe1\x6a\x29\xad\xa4\x03",
+ .len = 512,
+ }
+};
+
/*
* CTS (Cipher Text Stealing) mode tests
*/
@@ -32286,4 +36531,256 @@ static const struct comp_testvec zstd_decomp_tv_template[] = {
"functions.",
},
};
+
+static const char blake2_ordered_sequence[] =
+ "\x00\x01\x02\x03\x04\x05\x06\x07"
+ "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"
+ "\x10\x11\x12\x13\x14\x15\x16\x17"
+ "\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"
+ "\x20\x21\x22\x23\x24\x25\x26\x27"
+ "\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f"
+ "\x30\x31\x32\x33\x34\x35\x36\x37"
+ "\x38\x39\x3a\x3b\x3c\x3d\x3e\x3f"
+ "\x40\x41\x42\x43\x44\x45\x46\x47"
+ "\x48\x49\x4a\x4b\x4c\x4d\x4e\x4f"
+ "\x50\x51\x52\x53\x54\x55\x56\x57"
+ "\x58\x59\x5a\x5b\x5c\x5d\x5e\x5f"
+ "\x60\x61\x62\x63\x64\x65\x66\x67"
+ "\x68\x69\x6a\x6b\x6c\x6d\x6e\x6f"
+ "\x70\x71\x72\x73\x74\x75\x76\x77"
+ "\x78\x79\x7a\x7b\x7c\x7d\x7e\x7f"
+ "\x80\x81\x82\x83\x84\x85\x86\x87"
+ "\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f"
+ "\x90\x91\x92\x93\x94\x95\x96\x97"
+ "\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f"
+ "\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7"
+ "\xa8\xa9\xaa\xab\xac\xad\xae\xaf"
+ "\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7"
+ "\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf"
+ "\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7"
+ "\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf"
+ "\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7"
+ "\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf"
+ "\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7"
+ "\xe8\xe9\xea\xeb\xec\xed\xee\xef"
+ "\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7"
+ "\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff";
+
+static const struct hash_testvec blakes2s_128_tv_template[] = {{
+ .digest = (u8[]){ 0x64, 0x55, 0x0d, 0x6f, 0xfe, 0x2c, 0x0a, 0x01,
+ 0xa1, 0x4a, 0xba, 0x1e, 0xad, 0xe0, 0x20, 0x0c, },
+}, {
+ .plaintext = blake2_ordered_sequence,
+ .psize = 64,
+ .digest = (u8[]){ 0xdc, 0x66, 0xca, 0x8f, 0x03, 0x86, 0x58, 0x01,
+ 0xb0, 0xff, 0xe0, 0x6e, 0xd8, 0xa1, 0xa9, 0x0e, },
+}, {
+ .ksize = 16,
+ .key = blake2_ordered_sequence,
+ .plaintext = blake2_ordered_sequence,
+ .psize = 1,
+ .digest = (u8[]){ 0x88, 0x1e, 0x42, 0xe7, 0xbb, 0x35, 0x80, 0x82,
+ 0x63, 0x7c, 0x0a, 0x0f, 0xd7, 0xec, 0x6c, 0x2f, },
+}, {
+ .ksize = 32,
+ .key = blake2_ordered_sequence,
+ .plaintext = blake2_ordered_sequence,
+ .psize = 7,
+ .digest = (u8[]){ 0xcf, 0x9e, 0x07, 0x2a, 0xd5, 0x22, 0xf2, 0xcd,
+ 0xa2, 0xd8, 0x25, 0x21, 0x80, 0x86, 0x73, 0x1c, },
+}, {
+ .ksize = 1,
+ .key = "B",
+ .plaintext = blake2_ordered_sequence,
+ .psize = 15,
+ .digest = (u8[]){ 0xf6, 0x33, 0x5a, 0x2c, 0x22, 0xa0, 0x64, 0xb2,
+ 0xb6, 0x3f, 0xeb, 0xbc, 0xd1, 0xc3, 0xe5, 0xb2, },
+}, {
+ .ksize = 16,
+ .key = blake2_ordered_sequence,
+ .plaintext = blake2_ordered_sequence,
+ .psize = 247,
+ .digest = (u8[]){ 0x72, 0x66, 0x49, 0x60, 0xf9, 0x4a, 0xea, 0xbe,
+ 0x1f, 0xf4, 0x60, 0xce, 0xb7, 0x81, 0xcb, 0x09, },
+}, {
+ .ksize = 32,
+ .key = blake2_ordered_sequence,
+ .plaintext = blake2_ordered_sequence,
+ .psize = 256,
+ .digest = (u8[]){ 0xd5, 0xa4, 0x0e, 0xc3, 0x16, 0xc7, 0x51, 0xa6,
+ 0x3c, 0xd0, 0xd9, 0x11, 0x57, 0xfa, 0x1e, 0xbb, },
+}};
+
+static const struct hash_testvec blakes2s_160_tv_template[] = {{
+ .plaintext = blake2_ordered_sequence,
+ .psize = 7,
+ .digest = (u8[]){ 0xb4, 0xf2, 0x03, 0x49, 0x37, 0xed, 0xb1, 0x3e,
+ 0x5b, 0x2a, 0xca, 0x64, 0x82, 0x74, 0xf6, 0x62,
+ 0xe3, 0xf2, 0x84, 0xff, },
+}, {
+ .plaintext = blake2_ordered_sequence,
+ .psize = 256,
+ .digest = (u8[]){ 0xaa, 0x56, 0x9b, 0xdc, 0x98, 0x17, 0x75, 0xf2,
+ 0xb3, 0x68, 0x83, 0xb7, 0x9b, 0x8d, 0x48, 0xb1,
+ 0x9b, 0x2d, 0x35, 0x05, },
+}, {
+ .ksize = 1,
+ .key = "B",
+ .digest = (u8[]){ 0x50, 0x16, 0xe7, 0x0c, 0x01, 0xd0, 0xd3, 0xc3,
+ 0xf4, 0x3e, 0xb1, 0x6e, 0x97, 0xa9, 0x4e, 0xd1,
+ 0x79, 0x65, 0x32, 0x93, },
+}, {
+ .ksize = 32,
+ .key = blake2_ordered_sequence,
+ .plaintext = blake2_ordered_sequence,
+ .psize = 1,
+ .digest = (u8[]){ 0x1c, 0x2b, 0xcd, 0x9a, 0x68, 0xca, 0x8c, 0x71,
+ 0x90, 0x29, 0x6c, 0x54, 0xfa, 0x56, 0x4a, 0xef,
+ 0xa2, 0x3a, 0x56, 0x9c, },
+}, {
+ .ksize = 16,
+ .key = blake2_ordered_sequence,
+ .plaintext = blake2_ordered_sequence,
+ .psize = 15,
+ .digest = (u8[]){ 0x36, 0xc3, 0x5f, 0x9a, 0xdc, 0x7e, 0xbf, 0x19,
+ 0x68, 0xaa, 0xca, 0xd8, 0x81, 0xbf, 0x09, 0x34,
+ 0x83, 0x39, 0x0f, 0x30, },
+}, {
+ .ksize = 1,
+ .key = "B",
+ .plaintext = blake2_ordered_sequence,
+ .psize = 64,
+ .digest = (u8[]){ 0x86, 0x80, 0x78, 0xa4, 0x14, 0xec, 0x03, 0xe5,
+ 0xb6, 0x9a, 0x52, 0x0e, 0x42, 0xee, 0x39, 0x9d,
+ 0xac, 0xa6, 0x81, 0x63, },
+}, {
+ .ksize = 32,
+ .key = blake2_ordered_sequence,
+ .plaintext = blake2_ordered_sequence,
+ .psize = 247,
+ .digest = (u8[]){ 0x2d, 0xd8, 0xd2, 0x53, 0x66, 0xfa, 0xa9, 0x01,
+ 0x1c, 0x9c, 0xaf, 0xa3, 0xe2, 0x9d, 0x9b, 0x10,
+ 0x0a, 0xf6, 0x73, 0xe8, },
+}};
+
+static const struct hash_testvec blakes2s_224_tv_template[] = {{
+ .plaintext = blake2_ordered_sequence,
+ .psize = 1,
+ .digest = (u8[]){ 0x61, 0xb9, 0x4e, 0xc9, 0x46, 0x22, 0xa3, 0x91,
+ 0xd2, 0xae, 0x42, 0xe6, 0x45, 0x6c, 0x90, 0x12,
+ 0xd5, 0x80, 0x07, 0x97, 0xb8, 0x86, 0x5a, 0xfc,
+ 0x48, 0x21, 0x97, 0xbb, },
+}, {
+ .plaintext = blake2_ordered_sequence,
+ .psize = 247,
+ .digest = (u8[]){ 0x9e, 0xda, 0xc7, 0x20, 0x2c, 0xd8, 0x48, 0x2e,
+ 0x31, 0x94, 0xab, 0x46, 0x6d, 0x94, 0xd8, 0xb4,
+ 0x69, 0xcd, 0xae, 0x19, 0x6d, 0x9e, 0x41, 0xcc,
+ 0x2b, 0xa4, 0xd5, 0xf6, },
+}, {
+ .ksize = 16,
+ .key = blake2_ordered_sequence,
+ .digest = (u8[]){ 0x32, 0xc0, 0xac, 0xf4, 0x3b, 0xd3, 0x07, 0x9f,
+ 0xbe, 0xfb, 0xfa, 0x4d, 0x6b, 0x4e, 0x56, 0xb3,
+ 0xaa, 0xd3, 0x27, 0xf6, 0x14, 0xbf, 0xb9, 0x32,
+ 0xa7, 0x19, 0xfc, 0xb8, },
+}, {
+ .ksize = 1,
+ .key = "B",
+ .plaintext = blake2_ordered_sequence,
+ .psize = 7,
+ .digest = (u8[]){ 0x73, 0xad, 0x5e, 0x6d, 0xb9, 0x02, 0x8e, 0x76,
+ 0xf2, 0x66, 0x42, 0x4b, 0x4c, 0xfa, 0x1f, 0xe6,
+ 0x2e, 0x56, 0x40, 0xe5, 0xa2, 0xb0, 0x3c, 0xe8,
+ 0x7b, 0x45, 0xfe, 0x05, },
+}, {
+ .ksize = 32,
+ .key = blake2_ordered_sequence,
+ .plaintext = blake2_ordered_sequence,
+ .psize = 15,
+ .digest = (u8[]){ 0x16, 0x60, 0xfb, 0x92, 0x54, 0xb3, 0x6e, 0x36,
+ 0x81, 0xf4, 0x16, 0x41, 0xc3, 0x3d, 0xd3, 0x43,
+ 0x84, 0xed, 0x10, 0x6f, 0x65, 0x80, 0x7a, 0x3e,
+ 0x25, 0xab, 0xc5, 0x02, },
+}, {
+ .ksize = 16,
+ .key = blake2_ordered_sequence,
+ .plaintext = blake2_ordered_sequence,
+ .psize = 64,
+ .digest = (u8[]){ 0xca, 0xaa, 0x39, 0x67, 0x9c, 0xf7, 0x6b, 0xc7,
+ 0xb6, 0x82, 0xca, 0x0e, 0x65, 0x36, 0x5b, 0x7c,
+ 0x24, 0x00, 0xfa, 0x5f, 0xda, 0x06, 0x91, 0x93,
+ 0x6a, 0x31, 0x83, 0xb5, },
+}, {
+ .ksize = 1,
+ .key = "B",
+ .plaintext = blake2_ordered_sequence,
+ .psize = 256,
+ .digest = (u8[]){ 0x90, 0x02, 0x26, 0xb5, 0x06, 0x9c, 0x36, 0x86,
+ 0x94, 0x91, 0x90, 0x1e, 0x7d, 0x2a, 0x71, 0xb2,
+ 0x48, 0xb5, 0xe8, 0x16, 0xfd, 0x64, 0x33, 0x45,
+ 0xb3, 0xd7, 0xec, 0xcc, },
+}};
+
+static const struct hash_testvec blakes2s_256_tv_template[] = {{
+ .plaintext = blake2_ordered_sequence,
+ .psize = 15,
+ .digest = (u8[]){ 0xd9, 0x7c, 0x82, 0x8d, 0x81, 0x82, 0xa7, 0x21,
+ 0x80, 0xa0, 0x6a, 0x78, 0x26, 0x83, 0x30, 0x67,
+ 0x3f, 0x7c, 0x4e, 0x06, 0x35, 0x94, 0x7c, 0x04,
+ 0xc0, 0x23, 0x23, 0xfd, 0x45, 0xc0, 0xa5, 0x2d, },
+}, {
+ .ksize = 32,
+ .key = blake2_ordered_sequence,
+ .digest = (u8[]){ 0x48, 0xa8, 0x99, 0x7d, 0xa4, 0x07, 0x87, 0x6b,
+ 0x3d, 0x79, 0xc0, 0xd9, 0x23, 0x25, 0xad, 0x3b,
+ 0x89, 0xcb, 0xb7, 0x54, 0xd8, 0x6a, 0xb7, 0x1a,
+ 0xee, 0x04, 0x7a, 0xd3, 0x45, 0xfd, 0x2c, 0x49, },
+}, {
+ .ksize = 1,
+ .key = "B",
+ .plaintext = blake2_ordered_sequence,
+ .psize = 1,
+ .digest = (u8[]){ 0x22, 0x27, 0xae, 0xaa, 0x6e, 0x81, 0x56, 0x03,
+ 0xa7, 0xe3, 0xa1, 0x18, 0xa5, 0x9a, 0x2c, 0x18,
+ 0xf4, 0x63, 0xbc, 0x16, 0x70, 0xf1, 0xe7, 0x4b,
+ 0x00, 0x6d, 0x66, 0x16, 0xae, 0x9e, 0x74, 0x4e, },
+}, {
+ .ksize = 16,
+ .key = blake2_ordered_sequence,
+ .plaintext = blake2_ordered_sequence,
+ .psize = 7,
+ .digest = (u8[]){ 0x58, 0x5d, 0xa8, 0x60, 0x1c, 0xa4, 0xd8, 0x03,
+ 0x86, 0x86, 0x84, 0x64, 0xd7, 0xa0, 0x8e, 0x15,
+ 0x2f, 0x05, 0xa2, 0x1b, 0xbc, 0xef, 0x7a, 0x34,
+ 0xb3, 0xc5, 0xbc, 0x4b, 0xf0, 0x32, 0xeb, 0x12, },
+}, {
+ .ksize = 32,
+ .key = blake2_ordered_sequence,
+ .plaintext = blake2_ordered_sequence,
+ .psize = 64,
+ .digest = (u8[]){ 0x89, 0x75, 0xb0, 0x57, 0x7f, 0xd3, 0x55, 0x66,
+ 0xd7, 0x50, 0xb3, 0x62, 0xb0, 0x89, 0x7a, 0x26,
+ 0xc3, 0x99, 0x13, 0x6d, 0xf0, 0x7b, 0xab, 0xab,
+ 0xbd, 0xe6, 0x20, 0x3f, 0xf2, 0x95, 0x4e, 0xd4, },
+}, {
+ .ksize = 1,
+ .key = "B",
+ .plaintext = blake2_ordered_sequence,
+ .psize = 247,
+ .digest = (u8[]){ 0x2e, 0x74, 0x1c, 0x1d, 0x03, 0xf4, 0x9d, 0x84,
+ 0x6f, 0xfc, 0x86, 0x32, 0x92, 0x49, 0x7e, 0x66,
+ 0xd7, 0xc3, 0x10, 0x88, 0xfe, 0x28, 0xb3, 0xe0,
+ 0xbf, 0x50, 0x75, 0xad, 0x8e, 0xa4, 0xe6, 0xb2, },
+}, {
+ .ksize = 16,
+ .key = blake2_ordered_sequence,
+ .plaintext = blake2_ordered_sequence,
+ .psize = 256,
+ .digest = (u8[]){ 0xb9, 0xd2, 0x81, 0x0e, 0x3a, 0xb1, 0x62, 0x9b,
+ 0xad, 0x44, 0x05, 0xf4, 0x92, 0x2e, 0x99, 0xc1,
+ 0x4a, 0x47, 0xbb, 0x5b, 0x6f, 0xb2, 0x96, 0xed,
+ 0xd5, 0x06, 0xb5, 0x3a, 0x7c, 0x7a, 0x65, 0x1d, },
+}};
+
#endif /* _CRYPTO_TESTMGR_H */
diff --git a/drivers/Kconfig b/drivers/Kconfig
index ab4d439..d9b8512 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -195,6 +195,8 @@
source "drivers/android/Kconfig"
+source "drivers/gpu/trace/Kconfig"
+
source "drivers/nvdimm/Kconfig"
source "drivers/dax/Kconfig"
@@ -219,4 +221,5 @@
source "drivers/slimbus/Kconfig"
+source "drivers/energy_model/Kconfig"
endmenu
diff --git a/drivers/Makefile b/drivers/Makefile
index 578f469..1e847e2 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -157,6 +157,8 @@
obj-$(CONFIG_RPMSG) += rpmsg/
obj-$(CONFIG_SOUNDWIRE) += soundwire/
+obj-$(CONFIG_ENERGY_MODEL) += energy_model/
+
# Virtualization drivers
obj-$(CONFIG_VIRT_DRIVERS) += virt/
obj-$(CONFIG_HYPERV) += hv/
diff --git a/drivers/OWNERS b/drivers/OWNERS
new file mode 100644
index 0000000..22c7eec
--- /dev/null
+++ b/drivers/OWNERS
@@ -0,0 +1,2 @@
+# include OWNERS from the authoritative android-mainline branch
+include kernel/common:android-mainline:/drivers/OWNERS
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index 9617e58..b941395 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -455,7 +455,8 @@ acpi_status acpi_add_pm_notifier(struct acpi_device *adev, struct device *dev,
goto out;
mutex_lock(&acpi_pm_notifier_lock);
- adev->wakeup.ws = wakeup_source_register(dev_name(&adev->dev));
+ adev->wakeup.ws = wakeup_source_register(&adev->dev,
+ dev_name(&adev->dev));
adev->wakeup.context.dev = dev;
adev->wakeup.context.func = func;
adev->wakeup.flags.notifier_present = true;
diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index 58a756c..9bd8983 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -2292,7 +2292,7 @@ static void write_blk_ctl(struct nfit_blk *nfit_blk, unsigned int bw,
offset = to_interleave_offset(offset, mmio);
writeq(cmd, mmio->addr.base + offset);
- nvdimm_flush(nfit_blk->nd_region);
+ nvdimm_flush(nfit_blk->nd_region, NULL);
if (nfit_blk->dimm_flags & NFIT_BLK_DCR_LATCH)
readq(mmio->addr.base + offset);
@@ -2341,7 +2341,7 @@ static int acpi_nfit_blk_single_io(struct nfit_blk *nfit_blk,
}
if (rw)
- nvdimm_flush(nfit_blk->nd_region);
+ nvdimm_flush(nfit_blk->nd_region, NULL);
rc = read_blk_stat(nfit_blk, lane) ? -EIO : 0;
return rc;
diff --git a/drivers/android/Kconfig b/drivers/android/Kconfig
index 432e9ad..6fdf2ab 100644
--- a/drivers/android/Kconfig
+++ b/drivers/android/Kconfig
@@ -20,6 +20,18 @@
Android process, using Binder to identify, invoke and pass arguments
between said processes.
+config ANDROID_BINDERFS
+ bool "Android Binderfs filesystem"
+ depends on ANDROID_BINDER_IPC
+ default n
+ ---help---
+ Binderfs is a pseudo-filesystem for the Android Binder IPC driver
+ which can be mounted per-ipc namespace allowing to run multiple
+ instances of Android.
+ Each binderfs mount initially only contains a binder-control device.
+ It can be used to dynamically allocate new binder IPC devices via
+ ioctls.
+
config ANDROID_BINDER_DEVICES
string "Android Binder devices"
depends on ANDROID_BINDER_IPC
diff --git a/drivers/android/Makefile b/drivers/android/Makefile
index a01254c..c7856e3 100644
--- a/drivers/android/Makefile
+++ b/drivers/android/Makefile
@@ -1,4 +1,5 @@
ccflags-y += -I$(src) # needed for trace events
+obj-$(CONFIG_ANDROID_BINDERFS) += binderfs.o
obj-$(CONFIG_ANDROID_BINDER_IPC) += binder.o binder_alloc.o
obj-$(CONFIG_ANDROID_BINDER_IPC_SELFTEST) += binder_alloc_selftest.o
diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index cda4f7e..7e16c93 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -73,10 +73,12 @@
#include <linux/ratelimit.h>
#include <uapi/linux/android/binder.h>
+#include <uapi/linux/sched/types.h>
#include <asm/cacheflush.h>
#include "binder_alloc.h"
+#include "binder_internal.h"
#include "binder_trace.h"
static HLIST_HEAD(binder_deferred_list);
@@ -93,22 +95,8 @@ static struct dentry *binder_debugfs_dir_entry_root;
static struct dentry *binder_debugfs_dir_entry_proc;
static atomic_t binder_last_id;
-#define BINDER_DEBUG_ENTRY(name) \
-static int binder_##name##_open(struct inode *inode, struct file *file) \
-{ \
- return single_open(file, binder_##name##_show, inode->i_private); \
-} \
-\
-static const struct file_operations binder_##name##_fops = { \
- .owner = THIS_MODULE, \
- .open = binder_##name##_open, \
- .read = seq_read, \
- .llseek = seq_lseek, \
- .release = single_release, \
-}
-
-static int binder_proc_show(struct seq_file *m, void *unused);
-BINDER_DEBUG_ENTRY(proc);
+static int proc_show(struct seq_file *m, void *unused);
+DEFINE_SHOW_ATTRIBUTE(proc);
/* This is only defined in include/asm-arm/sizes.h */
#ifndef SZ_1K
@@ -142,7 +130,7 @@ static uint32_t binder_debug_mask = BINDER_DEBUG_USER_ERROR |
BINDER_DEBUG_FAILED_TRANSACTION | BINDER_DEBUG_DEAD_TRANSACTION;
module_param_named(debug_mask, binder_debug_mask, uint, 0644);
-static char *binder_devices_param = CONFIG_ANDROID_BINDER_DEVICES;
+char *binder_devices_param = CONFIG_ANDROID_BINDER_DEVICES;
module_param_named(devices, binder_devices_param, charp, 0444);
static DECLARE_WAIT_QUEUE_HEAD(binder_user_error_wait);
@@ -216,30 +204,8 @@ static inline void binder_stats_created(enum binder_stat_types type)
atomic_inc(&binder_stats.obj_created[type]);
}
-struct binder_transaction_log_entry {
- int debug_id;
- int debug_id_done;
- int call_type;
- int from_proc;
- int from_thread;
- int target_handle;
- int to_proc;
- int to_thread;
- int to_node;
- int data_size;
- int offsets_size;
- int return_error_line;
- uint32_t return_error;
- uint32_t return_error_param;
- const char *context_name;
-};
-struct binder_transaction_log {
- atomic_t cur;
- bool full;
- struct binder_transaction_log_entry entry[32];
-};
-static struct binder_transaction_log binder_transaction_log;
-static struct binder_transaction_log binder_transaction_log_failed;
+struct binder_transaction_log binder_transaction_log;
+struct binder_transaction_log binder_transaction_log_failed;
static struct binder_transaction_log_entry *binder_transaction_log_add(
struct binder_transaction_log *log)
@@ -261,20 +227,6 @@ static struct binder_transaction_log_entry *binder_transaction_log_add(
return e;
}
-struct binder_context {
- struct binder_node *binder_context_mgr_node;
- struct mutex context_mgr_node_lock;
-
- kuid_t binder_context_mgr_uid;
- const char *name;
-};
-
-struct binder_device {
- struct hlist_node hlist;
- struct miscdevice miscdev;
- struct binder_context context;
-};
-
/**
* struct binder_work - work enqueued on a worklist
* @entry: node enqueued on list
@@ -350,10 +302,15 @@ struct binder_error {
* and by @lock)
* @has_async_transaction: async transaction to node in progress
* (protected by @lock)
+ * @sched_policy: minimum scheduling policy for node
+ * (invariant after initialized)
* @accept_fds: file descriptor operations supported for node
* (invariant after initialized)
* @min_priority: minimum scheduling priority
* (invariant after initialized)
+ * @inherit_rt: inherit RT scheduling policy from caller
+ * @txn_security_ctx: require sender's security context
+ * (invariant after initialized)
* @async_todo: list of async work items
* (protected by @proc->inner_lock)
*
@@ -389,7 +346,10 @@ struct binder_node {
/*
* invariant after initialization
*/
+ u8 sched_policy:2;
+ u8 inherit_rt:1;
u8 accept_fds:1;
+ u8 txn_security_ctx:1;
u8 min_priority;
};
bool has_async_transaction;
@@ -463,6 +423,22 @@ enum binder_deferred_state {
};
/**
+ * struct binder_priority - scheduler policy and priority
+ * @sched_policy scheduler policy
+ * @prio [100..139] for SCHED_NORMAL, [0..99] for FIFO/RT
+ *
+ * The binder driver supports inheriting the following scheduler policies:
+ * SCHED_NORMAL
+ * SCHED_BATCH
+ * SCHED_FIFO
+ * SCHED_RR
+ */
+struct binder_priority {
+ unsigned int sched_policy;
+ int prio;
+};
+
+/**
* struct binder_proc - binder process bookkeeping
* @proc_node: element for binder_procs list
* @threads: rbtree of binder_threads in this proc
@@ -515,6 +491,7 @@ enum binder_deferred_state {
* @inner_lock: can nest under outer_lock and/or node lock
* @outer_lock: no nesting under innor or node lock
* Lock order: 1) outer, 2) node, 3) inner
+ * @binderfs_entry: process-specific binderfs log file
*
* Bookkeeping structure for binder processes
*/
@@ -540,12 +517,13 @@ struct binder_proc {
int requested_threads;
int requested_threads_started;
int tmp_ref;
- long default_priority;
+ struct binder_priority default_priority;
struct dentry *debugfs_entry;
struct binder_alloc alloc;
struct binder_context *context;
spinlock_t inner_lock;
spinlock_t outer_lock;
+ struct dentry *binderfs_entry;
};
enum {
@@ -590,6 +568,7 @@ enum {
* @is_dead: thread is dead and awaiting free
* when outstanding transactions are cleaned up
* (protected by @proc->inner_lock)
+ * @task: struct task_struct for this thread
*
* Bookkeeping structure for binder threads.
*/
@@ -609,6 +588,7 @@ struct binder_thread {
struct binder_stats stats;
atomic_t tmp_ref;
bool is_dead;
+ struct task_struct *task;
};
struct binder_transaction {
@@ -625,9 +605,11 @@ struct binder_transaction {
struct binder_buffer *buffer;
unsigned int code;
unsigned int flags;
- long priority;
- long saved_priority;
+ struct binder_priority priority;
+ struct binder_priority saved_priority;
+ bool set_priority_called;
kuid_t sender_euid;
+ binder_uintptr_t security_ctx;
/**
* @lock: protects @from, @to_proc, and @to_thread
*
@@ -638,6 +620,26 @@ struct binder_transaction {
};
/**
+ * struct binder_object - union of flat binder object types
+ * @hdr: generic object header
+ * @fbo: binder object (nodes and refs)
+ * @fdo: file descriptor object
+ * @bbo: binder buffer pointer
+ * @fdao: file descriptor array
+ *
+ * Used for type-independent object copies
+ */
+struct binder_object {
+ union {
+ struct binder_object_header hdr;
+ struct flat_binder_object fbo;
+ struct binder_fd_object fdo;
+ struct binder_buffer_object bbo;
+ struct binder_fd_array_object fdao;
+ };
+};
+
+/**
* binder_proc_lock() - Acquire outer lock for given binder_proc
* @proc: struct binder_proc to acquire
*
@@ -1088,22 +1090,145 @@ static void binder_wakeup_proc_ilocked(struct binder_proc *proc)
binder_wakeup_thread_ilocked(proc, thread, /* sync = */false);
}
-static void binder_set_nice(long nice)
+static bool is_rt_policy(int policy)
{
- long min_nice;
+ return policy == SCHED_FIFO || policy == SCHED_RR;
+}
- if (can_nice(current, nice)) {
- set_user_nice(current, nice);
+static bool is_fair_policy(int policy)
+{
+ return policy == SCHED_NORMAL || policy == SCHED_BATCH;
+}
+
+static bool binder_supported_policy(int policy)
+{
+ return is_fair_policy(policy) || is_rt_policy(policy);
+}
+
+static int to_userspace_prio(int policy, int kernel_priority)
+{
+ if (is_fair_policy(policy))
+ return PRIO_TO_NICE(kernel_priority);
+ else
+ return MAX_USER_RT_PRIO - 1 - kernel_priority;
+}
+
+static int to_kernel_prio(int policy, int user_priority)
+{
+ if (is_fair_policy(policy))
+ return NICE_TO_PRIO(user_priority);
+ else
+ return MAX_USER_RT_PRIO - 1 - user_priority;
+}
+
+static void binder_do_set_priority(struct task_struct *task,
+ struct binder_priority desired,
+ bool verify)
+{
+ int priority; /* user-space prio value */
+ bool has_cap_nice;
+ unsigned int policy = desired.sched_policy;
+
+ if (task->policy == policy && task->normal_prio == desired.prio)
return;
+
+ has_cap_nice = has_capability_noaudit(task, CAP_SYS_NICE);
+
+ priority = to_userspace_prio(policy, desired.prio);
+
+ if (verify && is_rt_policy(policy) && !has_cap_nice) {
+ long max_rtprio = task_rlimit(task, RLIMIT_RTPRIO);
+
+ if (max_rtprio == 0) {
+ policy = SCHED_NORMAL;
+ priority = MIN_NICE;
+ } else if (priority > max_rtprio) {
+ priority = max_rtprio;
+ }
}
- min_nice = rlimit_to_nice(rlimit(RLIMIT_NICE));
- binder_debug(BINDER_DEBUG_PRIORITY_CAP,
- "%d: nice value %ld not allowed use %ld instead\n",
- current->pid, nice, min_nice);
- set_user_nice(current, min_nice);
- if (min_nice <= MAX_NICE)
+
+ if (verify && is_fair_policy(policy) && !has_cap_nice) {
+ long min_nice = rlimit_to_nice(task_rlimit(task, RLIMIT_NICE));
+
+ if (min_nice > MAX_NICE) {
+ binder_user_error("%d RLIMIT_NICE not set\n",
+ task->pid);
+ return;
+ } else if (priority < min_nice) {
+ priority = min_nice;
+ }
+ }
+
+ if (policy != desired.sched_policy ||
+ to_kernel_prio(policy, priority) != desired.prio)
+ binder_debug(BINDER_DEBUG_PRIORITY_CAP,
+ "%d: priority %d not allowed, using %d instead\n",
+ task->pid, desired.prio,
+ to_kernel_prio(policy, priority));
+
+ trace_binder_set_priority(task->tgid, task->pid, task->normal_prio,
+ to_kernel_prio(policy, priority),
+ desired.prio);
+
+ /* Set the actual priority */
+ if (task->policy != policy || is_rt_policy(policy)) {
+ struct sched_param params;
+
+ params.sched_priority = is_rt_policy(policy) ? priority : 0;
+
+ sched_setscheduler_nocheck(task,
+ policy | SCHED_RESET_ON_FORK,
+ ¶ms);
+ }
+ if (is_fair_policy(policy))
+ set_user_nice(task, priority);
+}
+
+static void binder_set_priority(struct task_struct *task,
+ struct binder_priority desired)
+{
+ binder_do_set_priority(task, desired, /* verify = */ true);
+}
+
+static void binder_restore_priority(struct task_struct *task,
+ struct binder_priority desired)
+{
+ binder_do_set_priority(task, desired, /* verify = */ false);
+}
+
+static void binder_transaction_priority(struct task_struct *task,
+ struct binder_transaction *t,
+ struct binder_priority node_prio,
+ bool inherit_rt)
+{
+ struct binder_priority desired_prio = t->priority;
+
+ if (t->set_priority_called)
return;
- binder_user_error("%d RLIMIT_NICE not set\n", current->pid);
+
+ t->set_priority_called = true;
+ t->saved_priority.sched_policy = task->policy;
+ t->saved_priority.prio = task->normal_prio;
+
+ if (!inherit_rt && is_rt_policy(desired_prio.sched_policy)) {
+ desired_prio.prio = NICE_TO_PRIO(0);
+ desired_prio.sched_policy = SCHED_NORMAL;
+ }
+
+ if (node_prio.prio < t->priority.prio ||
+ (node_prio.prio == t->priority.prio &&
+ node_prio.sched_policy == SCHED_FIFO)) {
+ /*
+ * In case the minimum priority on the node is
+ * higher (lower value), use that priority. If
+ * the priority is the same, but the node uses
+ * SCHED_FIFO, prefer SCHED_FIFO, since it can
+ * run unbounded, unlike SCHED_RR.
+ */
+ desired_prio = node_prio;
+ }
+
+ binder_set_priority(task, desired_prio);
}
static struct binder_node *binder_get_node_ilocked(struct binder_proc *proc,
@@ -1156,6 +1281,7 @@ static struct binder_node *binder_init_node_ilocked(
binder_uintptr_t ptr = fp ? fp->binder : 0;
binder_uintptr_t cookie = fp ? fp->cookie : 0;
__u32 flags = fp ? fp->flags : 0;
+ s8 priority;
assert_spin_locked(&proc->inner_lock);
@@ -1188,8 +1314,13 @@ static struct binder_node *binder_init_node_ilocked(
node->ptr = ptr;
node->cookie = cookie;
node->work.type = BINDER_WORK_NODE;
- node->min_priority = flags & FLAT_BINDER_FLAG_PRIORITY_MASK;
+ priority = flags & FLAT_BINDER_FLAG_PRIORITY_MASK;
+ node->sched_policy = (flags & FLAT_BINDER_FLAG_SCHED_POLICY_MASK) >>
+ FLAT_BINDER_FLAG_SCHED_POLICY_SHIFT;
+ node->min_priority = to_kernel_prio(node->sched_policy, priority);
node->accept_fds = !!(flags & FLAT_BINDER_FLAG_ACCEPTS_FDS);
+ node->inherit_rt = !!(flags & FLAT_BINDER_FLAG_INHERIT_RT);
+ node->txn_security_ctx = !!(flags & FLAT_BINDER_FLAG_TXN_SECURITY_CTX);
spin_lock_init(&node->lock);
INIT_LIST_HEAD(&node->work.entry);
INIT_LIST_HEAD(&node->async_todo);
@@ -2028,26 +2159,34 @@ static void binder_cleanup_transaction(struct binder_transaction *t,
}
/**
- * binder_validate_object() - checks for a valid metadata object in a buffer.
+ * binder_get_object() - gets object and checks for valid metadata
+ * @proc: binder_proc owning the buffer
* @buffer: binder_buffer that we're parsing.
- * @offset: offset in the buffer at which to validate an object.
+ * @offset: offset in the @buffer at which to validate an object.
+ * @object: struct binder_object to read into
*
* Return: If there's a valid metadata object at @offset in @buffer, the
- * size of that object. Otherwise, it returns zero.
+ * size of that object. Otherwise, it returns zero. The object
+ * is read into the struct binder_object pointed to by @object.
*/
-static size_t binder_validate_object(struct binder_buffer *buffer, u64 offset)
+static size_t binder_get_object(struct binder_proc *proc,
+ struct binder_buffer *buffer,
+ unsigned long offset,
+ struct binder_object *object)
{
- /* Check if we can read a header first */
+ size_t read_size;
struct binder_object_header *hdr;
size_t object_size = 0;
- if (buffer->data_size < sizeof(*hdr) ||
- offset > buffer->data_size - sizeof(*hdr) ||
+ read_size = min_t(size_t, sizeof(*object), buffer->data_size - offset);
+ if (offset > buffer->data_size || read_size < sizeof(*hdr) ||
!IS_ALIGNED(offset, sizeof(u32)))
return 0;
+ binder_alloc_copy_from_buffer(&proc->alloc, object, buffer,
+ offset, read_size);
- /* Ok, now see if we can read a complete object. */
- hdr = (struct binder_object_header *)(buffer->data + offset);
+ /* Ok, now see if we read a complete object. */
+ hdr = &object->hdr;
switch (hdr->type) {
case BINDER_TYPE_BINDER:
case BINDER_TYPE_WEAK_BINDER:
@@ -2076,10 +2215,13 @@ static size_t binder_validate_object(struct binder_buffer *buffer, u64 offset)
/**
* binder_validate_ptr() - validates binder_buffer_object in a binder_buffer.
+ * @proc: binder_proc owning the buffer
* @b: binder_buffer containing the object
+ * @object: struct binder_object to read into
* @index: index in offset array at which the binder_buffer_object is
* located
- * @start: points to the start of the offset array
+ * @start_offset: points to the start of the offset array
+ * @object_offsetp: offset of @object read from @b
* @num_valid: the number of valid offsets in the offset array
*
* Return: If @index is within the valid range of the offset array
@@ -2090,34 +2232,46 @@ static size_t binder_validate_object(struct binder_buffer *buffer, u64 offset)
* Note that the offset found in index @index itself is not
* verified; this function assumes that @num_valid elements
* from @start were previously verified to have valid offsets.
+ * If @object_offsetp is non-NULL, then the offset within
+ * @b is written to it.
*/
-static struct binder_buffer_object *binder_validate_ptr(struct binder_buffer *b,
- binder_size_t index,
- binder_size_t *start,
- binder_size_t num_valid)
+static struct binder_buffer_object *binder_validate_ptr(
+ struct binder_proc *proc,
+ struct binder_buffer *b,
+ struct binder_object *object,
+ binder_size_t index,
+ binder_size_t start_offset,
+ binder_size_t *object_offsetp,
+ binder_size_t num_valid)
{
- struct binder_buffer_object *buffer_obj;
- binder_size_t *offp;
+ size_t object_size;
+ binder_size_t object_offset;
+ unsigned long buffer_offset;
if (index >= num_valid)
return NULL;
- offp = start + index;
- buffer_obj = (struct binder_buffer_object *)(b->data + *offp);
- if (buffer_obj->hdr.type != BINDER_TYPE_PTR)
+ buffer_offset = start_offset + sizeof(binder_size_t) * index;
+ binder_alloc_copy_from_buffer(&proc->alloc, &object_offset,
+ b, buffer_offset, sizeof(object_offset));
+ object_size = binder_get_object(proc, b, object_offset, object);
+ if (!object_size || object->hdr.type != BINDER_TYPE_PTR)
return NULL;
+ if (object_offsetp)
+ *object_offsetp = object_offset;
- return buffer_obj;
+ return &object->bbo;
}
/**
* binder_validate_fixup() - validates pointer/fd fixups happen in order.
+ * @proc: binder_proc owning the buffer
* @b: transaction buffer
- * @objects_start start of objects buffer
- * @buffer: binder_buffer_object in which to fix up
- * @offset: start offset in @buffer to fix up
- * @last_obj: last binder_buffer_object that we fixed up in
- * @last_min_offset: minimum fixup offset in @last_obj
+ * @objects_start_offset: offset to start of objects buffer
+ * @buffer_obj_offset: offset to binder_buffer_object in which to fix up
+ * @fixup_offset: start offset in @buffer to fix up
+ * @last_obj_offset: offset to last binder_buffer_object that we fixed
+ * @last_min_offset: minimum fixup offset in object at @last_obj_offset
*
* Return: %true if a fixup in buffer @buffer at offset @offset is
* allowed.
@@ -2148,63 +2302,83 @@ static struct binder_buffer_object *binder_validate_ptr(struct binder_buffer *b,
* C (parent = A, offset = 16)
* D (parent = B, offset = 0) // B is not A or any of A's parents
*/
-static bool binder_validate_fixup(struct binder_buffer *b,
- binder_size_t *objects_start,
- struct binder_buffer_object *buffer,
+static bool binder_validate_fixup(struct binder_proc *proc,
+ struct binder_buffer *b,
+ binder_size_t objects_start_offset,
+ binder_size_t buffer_obj_offset,
binder_size_t fixup_offset,
- struct binder_buffer_object *last_obj,
+ binder_size_t last_obj_offset,
binder_size_t last_min_offset)
{
- if (!last_obj) {
+ if (!last_obj_offset) {
/* Nothing to fix up in */
return false;
}
- while (last_obj != buffer) {
+ while (last_obj_offset != buffer_obj_offset) {
+ unsigned long buffer_offset;
+ struct binder_object last_object;
+ struct binder_buffer_object *last_bbo;
+ size_t object_size = binder_get_object(proc, b, last_obj_offset,
+ &last_object);
+ if (object_size != sizeof(*last_bbo))
+ return false;
+
+ last_bbo = &last_object.bbo;
/*
* Safe to retrieve the parent of last_obj, since it
* was already previously verified by the driver.
*/
- if ((last_obj->flags & BINDER_BUFFER_FLAG_HAS_PARENT) == 0)
+ if ((last_bbo->flags & BINDER_BUFFER_FLAG_HAS_PARENT) == 0)
return false;
- last_min_offset = last_obj->parent_offset + sizeof(uintptr_t);
- last_obj = (struct binder_buffer_object *)
- (b->data + *(objects_start + last_obj->parent));
+ last_min_offset = last_bbo->parent_offset + sizeof(uintptr_t);
+ buffer_offset = objects_start_offset +
+ sizeof(binder_size_t) * last_bbo->parent,
+ binder_alloc_copy_from_buffer(&proc->alloc, &last_obj_offset,
+ b, buffer_offset,
+ sizeof(last_obj_offset));
}
return (fixup_offset >= last_min_offset);
}
static void binder_transaction_buffer_release(struct binder_proc *proc,
struct binder_buffer *buffer,
- binder_size_t *failed_at)
+ binder_size_t failed_at,
+ bool is_failure)
{
- binder_size_t *offp, *off_start, *off_end;
int debug_id = buffer->debug_id;
+ binder_size_t off_start_offset, buffer_offset, off_end_offset;
binder_debug(BINDER_DEBUG_TRANSACTION,
- "%d buffer release %d, size %zd-%zd, failed at %pK\n",
+ "%d buffer release %d, size %zd-%zd, failed at %llx\n",
proc->pid, buffer->debug_id,
- buffer->data_size, buffer->offsets_size, failed_at);
+ buffer->data_size, buffer->offsets_size,
+ (unsigned long long)failed_at);
if (buffer->target_node)
binder_dec_node(buffer->target_node, 1, 0);
- off_start = (binder_size_t *)(buffer->data +
- ALIGN(buffer->data_size, sizeof(void *)));
- if (failed_at)
- off_end = failed_at;
- else
- off_end = (void *)off_start + buffer->offsets_size;
- for (offp = off_start; offp < off_end; offp++) {
+ off_start_offset = ALIGN(buffer->data_size, sizeof(void *));
+ off_end_offset = is_failure ? failed_at :
+ off_start_offset + buffer->offsets_size;
+ for (buffer_offset = off_start_offset; buffer_offset < off_end_offset;
+ buffer_offset += sizeof(binder_size_t)) {
struct binder_object_header *hdr;
- size_t object_size = binder_validate_object(buffer, *offp);
+ size_t object_size;
+ struct binder_object object;
+ binder_size_t object_offset;
+ binder_alloc_copy_from_buffer(&proc->alloc, &object_offset,
+ buffer, buffer_offset,
+ sizeof(object_offset));
+ object_size = binder_get_object(proc, buffer,
+ object_offset, &object);
if (object_size == 0) {
pr_err("transaction release %d bad object at offset %lld, size %zd\n",
- debug_id, (u64)*offp, buffer->data_size);
+ debug_id, (u64)object_offset, buffer->data_size);
continue;
}
- hdr = (struct binder_object_header *)(buffer->data + *offp);
+ hdr = &object.hdr;
switch (hdr->type) {
case BINDER_TYPE_BINDER:
case BINDER_TYPE_WEAK_BINDER: {
@@ -2262,28 +2436,25 @@ static void binder_transaction_buffer_release(struct binder_proc *proc,
case BINDER_TYPE_FDA: {
struct binder_fd_array_object *fda;
struct binder_buffer_object *parent;
- uintptr_t parent_buffer;
- u32 *fd_array;
+ struct binder_object ptr_object;
+ binder_size_t fda_offset;
size_t fd_index;
binder_size_t fd_buf_size;
+ binder_size_t num_valid;
+ num_valid = (buffer_offset - off_start_offset) /
+ sizeof(binder_size_t);
fda = to_binder_fd_array_object(hdr);
- parent = binder_validate_ptr(buffer, fda->parent,
- off_start,
- offp - off_start);
+ parent = binder_validate_ptr(proc, buffer, &ptr_object,
+ fda->parent,
+ off_start_offset,
+ NULL,
+ num_valid);
if (!parent) {
pr_err("transaction release %d bad parent offset\n",
debug_id);
continue;
}
- /*
- * Since the parent was already fixed up, convert it
- * back to kernel address space to access it
- */
- parent_buffer = parent->buffer -
- binder_alloc_get_user_buffer_offset(
- &proc->alloc);
-
fd_buf_size = sizeof(u32) * fda->num_fds;
if (fda->num_fds >= SIZE_MAX / sizeof(u32)) {
pr_err("transaction release %d invalid number of fds (%lld)\n",
@@ -2297,9 +2468,29 @@ static void binder_transaction_buffer_release(struct binder_proc *proc,
debug_id, (u64)fda->num_fds);
continue;
}
- fd_array = (u32 *)(parent_buffer + (uintptr_t)fda->parent_offset);
- for (fd_index = 0; fd_index < fda->num_fds; fd_index++)
- task_close_fd(proc, fd_array[fd_index]);
+ /*
+ * the source data for binder_buffer_object is visible
+ * to user-space and the @buffer element is the user
+ * pointer to the buffer_object containing the fd_array.
+ * Convert the address to an offset relative to
+ * the base of the transaction buffer.
+ */
+ fda_offset =
+ (parent->buffer - (uintptr_t)buffer->user_data) +
+ fda->parent_offset;
+ for (fd_index = 0; fd_index < fda->num_fds;
+ fd_index++) {
+ u32 fd;
+ binder_size_t offset = fda_offset +
+ fd_index * sizeof(fd);
+
+ binder_alloc_copy_from_buffer(&proc->alloc,
+ &fd,
+ buffer,
+ offset,
+ sizeof(fd));
+ task_close_fd(proc, fd);
+ }
} break;
default:
pr_err("transaction release %d bad object type %x\n",
@@ -2496,9 +2687,8 @@ static int binder_translate_fd_array(struct binder_fd_array_object *fda,
struct binder_transaction *in_reply_to)
{
binder_size_t fdi, fd_buf_size, num_installed_fds;
+ binder_size_t fda_offset;
int target_fd;
- uintptr_t parent_buffer;
- u32 *fd_array;
struct binder_proc *proc = thread->proc;
struct binder_proc *target_proc = t->to_proc;
@@ -2516,23 +2706,33 @@ static int binder_translate_fd_array(struct binder_fd_array_object *fda,
return -EINVAL;
}
/*
- * Since the parent was already fixed up, convert it
- * back to the kernel address space to access it
+ * the source data for binder_buffer_object is visible
+ * to user-space and the @buffer element is the user
+ * pointer to the buffer_object containing the fd_array.
+ * Convert the address to an offset relative to
+ * the base of the transaction buffer.
*/
- parent_buffer = parent->buffer -
- binder_alloc_get_user_buffer_offset(&target_proc->alloc);
- fd_array = (u32 *)(parent_buffer + (uintptr_t)fda->parent_offset);
- if (!IS_ALIGNED((unsigned long)fd_array, sizeof(u32))) {
+ fda_offset = (parent->buffer - (uintptr_t)t->buffer->user_data) +
+ fda->parent_offset;
+ if (!IS_ALIGNED((unsigned long)fda_offset, sizeof(u32))) {
binder_user_error("%d:%d parent offset not aligned correctly.\n",
proc->pid, thread->pid);
return -EINVAL;
}
for (fdi = 0; fdi < fda->num_fds; fdi++) {
- target_fd = binder_translate_fd(fd_array[fdi], t, thread,
- in_reply_to);
+ u32 fd;
+
+ binder_size_t offset = fda_offset + fdi * sizeof(fd);
+
+ binder_alloc_copy_from_buffer(&target_proc->alloc,
+ &fd, t->buffer,
+ offset, sizeof(fd));
+ target_fd = binder_translate_fd(fd, t, thread, in_reply_to);
if (target_fd < 0)
goto err_translate_fd_failed;
- fd_array[fdi] = target_fd;
+ binder_alloc_copy_to_buffer(&target_proc->alloc,
+ t->buffer, offset,
+ &target_fd, sizeof(fd));
}
return 0;
@@ -2542,38 +2742,48 @@ static int binder_translate_fd_array(struct binder_fd_array_object *fda,
* installed so far.
*/
num_installed_fds = fdi;
- for (fdi = 0; fdi < num_installed_fds; fdi++)
- task_close_fd(target_proc, fd_array[fdi]);
+ for (fdi = 0; fdi < num_installed_fds; fdi++) {
+ u32 fd;
+ binder_size_t offset = fda_offset + fdi * sizeof(fd);
+ binder_alloc_copy_from_buffer(&target_proc->alloc,
+ &fd, t->buffer,
+ offset, sizeof(fd));
+ task_close_fd(target_proc, fd);
+ }
return target_fd;
}
static int binder_fixup_parent(struct binder_transaction *t,
struct binder_thread *thread,
struct binder_buffer_object *bp,
- binder_size_t *off_start,
+ binder_size_t off_start_offset,
binder_size_t num_valid,
- struct binder_buffer_object *last_fixup_obj,
+ binder_size_t last_fixup_obj_off,
binder_size_t last_fixup_min_off)
{
struct binder_buffer_object *parent;
- u8 *parent_buffer;
struct binder_buffer *b = t->buffer;
struct binder_proc *proc = thread->proc;
struct binder_proc *target_proc = t->to_proc;
+ struct binder_object object;
+ binder_size_t buffer_offset;
+ binder_size_t parent_offset;
if (!(bp->flags & BINDER_BUFFER_FLAG_HAS_PARENT))
return 0;
- parent = binder_validate_ptr(b, bp->parent, off_start, num_valid);
+ parent = binder_validate_ptr(target_proc, b, &object, bp->parent,
+ off_start_offset, &parent_offset,
+ num_valid);
if (!parent) {
binder_user_error("%d:%d got transaction with invalid parent offset or type\n",
proc->pid, thread->pid);
return -EINVAL;
}
- if (!binder_validate_fixup(b, off_start,
- parent, bp->parent_offset,
- last_fixup_obj,
+ if (!binder_validate_fixup(target_proc, b, off_start_offset,
+ parent_offset, bp->parent_offset,
+ last_fixup_obj_off,
last_fixup_min_off)) {
binder_user_error("%d:%d got transaction with out-of-order buffer fixup\n",
proc->pid, thread->pid);
@@ -2587,10 +2797,10 @@ static int binder_fixup_parent(struct binder_transaction *t,
proc->pid, thread->pid);
return -EINVAL;
}
- parent_buffer = (u8 *)((uintptr_t)parent->buffer -
- binder_alloc_get_user_buffer_offset(
- &target_proc->alloc));
- *(binder_uintptr_t *)(parent_buffer + bp->parent_offset) = bp->buffer;
+ buffer_offset = bp->parent_offset +
+ (uintptr_t)parent->buffer - (uintptr_t)b->user_data;
+ binder_alloc_copy_to_buffer(&target_proc->alloc, b, buffer_offset,
+ &bp->buffer, sizeof(bp->buffer));
return 0;
}
@@ -2617,11 +2827,15 @@ static bool binder_proc_transaction(struct binder_transaction *t,
struct binder_thread *thread)
{
struct binder_node *node = t->buffer->target_node;
+ struct binder_priority node_prio;
bool oneway = !!(t->flags & TF_ONE_WAY);
bool pending_async = false;
BUG_ON(!node);
binder_node_lock(node);
+ node_prio.prio = node->min_priority;
+ node_prio.sched_policy = node->sched_policy;
+
if (oneway) {
BUG_ON(thread);
if (node->has_async_transaction) {
@@ -2642,12 +2856,15 @@ static bool binder_proc_transaction(struct binder_transaction *t,
if (!thread && !pending_async)
thread = binder_select_thread_ilocked(proc);
- if (thread)
+ if (thread) {
+ binder_transaction_priority(thread->task, t, node_prio,
+ node->inherit_rt);
binder_enqueue_thread_work_ilocked(thread, &t->work);
- else if (!pending_async)
+ } else if (!pending_async) {
binder_enqueue_work_ilocked(&t->work, &proc->todo);
- else
+ } else {
binder_enqueue_work_ilocked(&t->work, &node->async_todo);
+ }
if (!pending_async)
binder_wakeup_thread_ilocked(proc, thread, !oneway /* sync */);
@@ -2709,9 +2926,10 @@ static void binder_transaction(struct binder_proc *proc,
struct binder_transaction *t;
struct binder_work *w;
struct binder_work *tcomplete;
- binder_size_t *offp, *off_end, *off_start;
+ binder_size_t buffer_offset = 0;
+ binder_size_t off_start_offset, off_end_offset;
binder_size_t off_min;
- u8 *sg_bufp, *sg_buf_end;
+ binder_size_t sg_buf_offset, sg_buf_end_offset;
struct binder_proc *target_proc = NULL;
struct binder_thread *target_thread = NULL;
struct binder_node *target_node = NULL;
@@ -2720,10 +2938,12 @@ static void binder_transaction(struct binder_proc *proc,
uint32_t return_error = 0;
uint32_t return_error_param = 0;
uint32_t return_error_line = 0;
- struct binder_buffer_object *last_fixup_obj = NULL;
+ binder_size_t last_fixup_obj_off = 0;
binder_size_t last_fixup_min_off = 0;
struct binder_context *context = proc->context;
int t_debug_id = atomic_inc_return(&binder_last_id);
+ char *secctx = NULL;
+ u32 secctx_sz = 0;
e = binder_transaction_log_add(&binder_transaction_log);
e->debug_id = t_debug_id;
@@ -2765,7 +2985,6 @@ static void binder_transaction(struct binder_proc *proc,
}
thread->transaction_stack = in_reply_to->to_parent;
binder_inner_proc_unlock(proc);
- binder_set_nice(in_reply_to->saved_priority);
target_thread = binder_get_txn_from_and_acq_inner(in_reply_to);
if (target_thread == NULL) {
return_error = BR_DEAD_REPLY;
@@ -2841,12 +3060,6 @@ static void binder_transaction(struct binder_proc *proc,
goto err_dead_binder;
}
e->to_node = target_node->debug_id;
- if (WARN_ON(proc == target_proc)) {
- return_error = BR_FAILED_REPLY;
- return_error_param = -EINVAL;
- return_error_line = __LINE__;
- goto err_invalid_target_handle;
- }
if (security_binder_transaction(proc->tsk,
target_proc->tsk) < 0) {
return_error = BR_FAILED_REPLY;
@@ -2967,13 +3180,44 @@ static void binder_transaction(struct binder_proc *proc,
t->to_thread = target_thread;
t->code = tr->code;
t->flags = tr->flags;
- t->priority = task_nice(current);
+ if (!(t->flags & TF_ONE_WAY) &&
+ binder_supported_policy(current->policy)) {
+ /* Inherit supported policies for synchronous transactions */
+ t->priority.sched_policy = current->policy;
+ t->priority.prio = current->normal_prio;
+ } else {
+ /* Otherwise, fall back to the default priority */
+ t->priority = target_proc->default_priority;
+ }
+
+ if (target_node && target_node->txn_security_ctx) {
+ u32 secid;
+ size_t added_size;
+
+ security_task_getsecid(proc->tsk, &secid);
+ ret = security_secid_to_secctx(secid, &secctx, &secctx_sz);
+ if (ret) {
+ return_error = BR_FAILED_REPLY;
+ return_error_param = ret;
+ return_error_line = __LINE__;
+ goto err_get_secctx_failed;
+ }
+ added_size = ALIGN(secctx_sz, sizeof(u64));
+ extra_buffers_size += added_size;
+ if (extra_buffers_size < added_size) {
+ /* integer overflow of extra_buffers_size */
+ return_error = BR_FAILED_REPLY;
+ return_error_param = EINVAL;
+ return_error_line = __LINE__;
+ goto err_bad_extra_size;
+ }
+ }
trace_binder_transaction(reply, t, target_node);
t->buffer = binder_alloc_new_buf(&target_proc->alloc, tr->data_size,
tr->offsets_size, extra_buffers_size,
- !reply && (t->flags & TF_ONE_WAY));
+ !reply && (t->flags & TF_ONE_WAY), current->tgid);
if (IS_ERR(t->buffer)) {
/*
* -ESRCH indicates VMA cleared. The target is dying.
@@ -2985,16 +3229,30 @@ static void binder_transaction(struct binder_proc *proc,
t->buffer = NULL;
goto err_binder_alloc_buf_failed;
}
+ if (secctx) {
+ size_t buf_offset = ALIGN(tr->data_size, sizeof(void *)) +
+ ALIGN(tr->offsets_size, sizeof(void *)) +
+ ALIGN(extra_buffers_size, sizeof(void *)) -
+ ALIGN(secctx_sz, sizeof(u64));
+
+ t->security_ctx = (uintptr_t)t->buffer->user_data + buf_offset;
+ binder_alloc_copy_to_buffer(&target_proc->alloc,
+ t->buffer, buf_offset,
+ secctx, secctx_sz);
+ security_release_secctx(secctx, secctx_sz);
+ secctx = NULL;
+ }
t->buffer->debug_id = t->debug_id;
t->buffer->transaction = t;
t->buffer->target_node = target_node;
trace_binder_transaction_alloc_buf(t->buffer);
- off_start = (binder_size_t *)(t->buffer->data +
- ALIGN(tr->data_size, sizeof(void *)));
- offp = off_start;
- if (copy_from_user(t->buffer->data, (const void __user *)(uintptr_t)
- tr->data.ptr.buffer, tr->data_size)) {
+ if (binder_alloc_copy_user_to_buffer(
+ &target_proc->alloc,
+ t->buffer, 0,
+ (const void __user *)
+ (uintptr_t)tr->data.ptr.buffer,
+ tr->data_size)) {
binder_user_error("%d:%d got transaction with invalid data ptr\n",
proc->pid, thread->pid);
return_error = BR_FAILED_REPLY;
@@ -3002,8 +3260,13 @@ static void binder_transaction(struct binder_proc *proc,
return_error_line = __LINE__;
goto err_copy_data_failed;
}
- if (copy_from_user(offp, (const void __user *)(uintptr_t)
- tr->data.ptr.offsets, tr->offsets_size)) {
+ if (binder_alloc_copy_user_to_buffer(
+ &target_proc->alloc,
+ t->buffer,
+ ALIGN(tr->data_size, sizeof(void *)),
+ (const void __user *)
+ (uintptr_t)tr->data.ptr.offsets,
+ tr->offsets_size)) {
binder_user_error("%d:%d got transaction with invalid offsets ptr\n",
proc->pid, thread->pid);
return_error = BR_FAILED_REPLY;
@@ -3028,17 +3291,31 @@ static void binder_transaction(struct binder_proc *proc,
return_error_line = __LINE__;
goto err_bad_offset;
}
- off_end = (void *)off_start + tr->offsets_size;
- sg_bufp = (u8 *)(PTR_ALIGN(off_end, sizeof(void *)));
- sg_buf_end = sg_bufp + extra_buffers_size;
+ off_start_offset = ALIGN(tr->data_size, sizeof(void *));
+ buffer_offset = off_start_offset;
+ off_end_offset = off_start_offset + tr->offsets_size;
+ sg_buf_offset = ALIGN(off_end_offset, sizeof(void *));
+ sg_buf_end_offset = sg_buf_offset + extra_buffers_size -
+ ALIGN(secctx_sz, sizeof(u64));
off_min = 0;
- for (; offp < off_end; offp++) {
+ for (buffer_offset = off_start_offset; buffer_offset < off_end_offset;
+ buffer_offset += sizeof(binder_size_t)) {
struct binder_object_header *hdr;
- size_t object_size = binder_validate_object(t->buffer, *offp);
+ size_t object_size;
+ struct binder_object object;
+ binder_size_t object_offset;
- if (object_size == 0 || *offp < off_min) {
+ binder_alloc_copy_from_buffer(&target_proc->alloc,
+ &object_offset,
+ t->buffer,
+ buffer_offset,
+ sizeof(object_offset));
+ object_size = binder_get_object(target_proc, t->buffer,
+ object_offset, &object);
+ if (object_size == 0 || object_offset < off_min) {
binder_user_error("%d:%d got transaction with invalid offset (%lld, min %lld max %lld) or object.\n",
- proc->pid, thread->pid, (u64)*offp,
+ proc->pid, thread->pid,
+ (u64)object_offset,
(u64)off_min,
(u64)t->buffer->data_size);
return_error = BR_FAILED_REPLY;
@@ -3047,8 +3324,8 @@ static void binder_transaction(struct binder_proc *proc,
goto err_bad_offset;
}
- hdr = (struct binder_object_header *)(t->buffer->data + *offp);
- off_min = *offp + object_size;
+ hdr = &object.hdr;
+ off_min = object_offset + object_size;
switch (hdr->type) {
case BINDER_TYPE_BINDER:
case BINDER_TYPE_WEAK_BINDER: {
@@ -3062,6 +3339,9 @@ static void binder_transaction(struct binder_proc *proc,
return_error_line = __LINE__;
goto err_translate_failed;
}
+ binder_alloc_copy_to_buffer(&target_proc->alloc,
+ t->buffer, object_offset,
+ fp, sizeof(*fp));
} break;
case BINDER_TYPE_HANDLE:
case BINDER_TYPE_WEAK_HANDLE: {
@@ -3075,6 +3355,9 @@ static void binder_transaction(struct binder_proc *proc,
return_error_line = __LINE__;
goto err_translate_failed;
}
+ binder_alloc_copy_to_buffer(&target_proc->alloc,
+ t->buffer, object_offset,
+ fp, sizeof(*fp));
} break;
case BINDER_TYPE_FD: {
@@ -3090,14 +3373,23 @@ static void binder_transaction(struct binder_proc *proc,
}
fp->pad_binder = 0;
fp->fd = target_fd;
+ binder_alloc_copy_to_buffer(&target_proc->alloc,
+ t->buffer, object_offset,
+ fp, sizeof(*fp));
} break;
case BINDER_TYPE_FDA: {
+ struct binder_object ptr_object;
+ binder_size_t parent_offset;
struct binder_fd_array_object *fda =
to_binder_fd_array_object(hdr);
+ size_t num_valid = (buffer_offset - off_start_offset) /
+ sizeof(binder_size_t);
struct binder_buffer_object *parent =
- binder_validate_ptr(t->buffer, fda->parent,
- off_start,
- offp - off_start);
+ binder_validate_ptr(target_proc, t->buffer,
+ &ptr_object, fda->parent,
+ off_start_offset,
+ &parent_offset,
+ num_valid);
if (!parent) {
binder_user_error("%d:%d got transaction with invalid parent offset or type\n",
proc->pid, thread->pid);
@@ -3106,9 +3398,11 @@ static void binder_transaction(struct binder_proc *proc,
return_error_line = __LINE__;
goto err_bad_parent;
}
- if (!binder_validate_fixup(t->buffer, off_start,
- parent, fda->parent_offset,
- last_fixup_obj,
+ if (!binder_validate_fixup(target_proc, t->buffer,
+ off_start_offset,
+ parent_offset,
+ fda->parent_offset,
+ last_fixup_obj_off,
last_fixup_min_off)) {
binder_user_error("%d:%d got transaction with out-of-order buffer fixup\n",
proc->pid, thread->pid);
@@ -3125,14 +3419,15 @@ static void binder_transaction(struct binder_proc *proc,
return_error_line = __LINE__;
goto err_translate_failed;
}
- last_fixup_obj = parent;
+ last_fixup_obj_off = parent_offset;
last_fixup_min_off =
fda->parent_offset + sizeof(u32) * fda->num_fds;
} break;
case BINDER_TYPE_PTR: {
struct binder_buffer_object *bp =
to_binder_buffer_object(hdr);
- size_t buf_left = sg_buf_end - sg_bufp;
+ size_t buf_left = sg_buf_end_offset - sg_buf_offset;
+ size_t num_valid;
if (bp->length > buf_left) {
binder_user_error("%d:%d got transaction with too large buffer\n",
@@ -3142,9 +3437,13 @@ static void binder_transaction(struct binder_proc *proc,
return_error_line = __LINE__;
goto err_bad_offset;
}
- if (copy_from_user(sg_bufp,
- (const void __user *)(uintptr_t)
- bp->buffer, bp->length)) {
+ if (binder_alloc_copy_user_to_buffer(
+ &target_proc->alloc,
+ t->buffer,
+ sg_buf_offset,
+ (const void __user *)
+ (uintptr_t)bp->buffer,
+ bp->length)) {
binder_user_error("%d:%d got transaction with invalid offsets ptr\n",
proc->pid, thread->pid);
return_error_param = -EFAULT;
@@ -3153,14 +3452,16 @@ static void binder_transaction(struct binder_proc *proc,
goto err_copy_data_failed;
}
/* Fixup buffer pointer to target proc address space */
- bp->buffer = (uintptr_t)sg_bufp +
- binder_alloc_get_user_buffer_offset(
- &target_proc->alloc);
- sg_bufp += ALIGN(bp->length, sizeof(u64));
+ bp->buffer = (uintptr_t)
+ t->buffer->user_data + sg_buf_offset;
+ sg_buf_offset += ALIGN(bp->length, sizeof(u64));
- ret = binder_fixup_parent(t, thread, bp, off_start,
- offp - off_start,
- last_fixup_obj,
+ num_valid = (buffer_offset - off_start_offset) /
+ sizeof(binder_size_t);
+ ret = binder_fixup_parent(t, thread, bp,
+ off_start_offset,
+ num_valid,
+ last_fixup_obj_off,
last_fixup_min_off);
if (ret < 0) {
return_error = BR_FAILED_REPLY;
@@ -3168,7 +3469,10 @@ static void binder_transaction(struct binder_proc *proc,
return_error_line = __LINE__;
goto err_translate_failed;
}
- last_fixup_obj = bp;
+ binder_alloc_copy_to_buffer(&target_proc->alloc,
+ t->buffer, object_offset,
+ bp, sizeof(*bp));
+ last_fixup_obj_off = object_offset;
last_fixup_min_off = 0;
} break;
default:
@@ -3195,6 +3499,7 @@ static void binder_transaction(struct binder_proc *proc,
binder_enqueue_thread_work_ilocked(target_thread, &t->work);
binder_inner_proc_unlock(target_proc);
wake_up_interruptible_sync(&target_thread->wait);
+ binder_restore_priority(current, in_reply_to->saved_priority);
binder_free_transaction(in_reply_to);
} else if (!(t->flags & TF_ONE_WAY)) {
BUG_ON(t->buffer->async_transaction != 0);
@@ -3247,13 +3552,18 @@ static void binder_transaction(struct binder_proc *proc,
err_bad_parent:
err_copy_data_failed:
trace_binder_transaction_failed_buffer_release(t->buffer);
- binder_transaction_buffer_release(target_proc, t->buffer, offp);
+ binder_transaction_buffer_release(target_proc, t->buffer,
+ buffer_offset, true);
if (target_node)
binder_dec_node_tmpref(target_node);
target_node = NULL;
t->buffer->transaction = NULL;
binder_alloc_free_buf(&target_proc->alloc, t->buffer);
err_binder_alloc_buf_failed:
+err_bad_extra_size:
+ if (secctx)
+ security_release_secctx(secctx, secctx_sz);
+err_get_secctx_failed:
kfree(tcomplete);
binder_stats_deleted(BINDER_STAT_TRANSACTION_COMPLETE);
err_alloc_tcomplete_failed:
@@ -3299,6 +3609,7 @@ static void binder_transaction(struct binder_proc *proc,
BUG_ON(thread->return_error.cmd != BR_OK);
if (in_reply_to) {
+ binder_restore_priority(current, in_reply_to->saved_priority);
thread->return_error.cmd = BR_TRANSACTION_COMPLETE;
binder_enqueue_thread_work(thread, &thread->return_error.work);
binder_send_failed_reply(in_reply_to, return_error);
@@ -3351,17 +3662,10 @@ static int binder_thread_write(struct binder_proc *proc,
struct binder_node *ctx_mgr_node;
mutex_lock(&context->context_mgr_node_lock);
ctx_mgr_node = context->binder_context_mgr_node;
- if (ctx_mgr_node) {
- if (ctx_mgr_node->proc == proc) {
- binder_user_error("%d:%d context manager tried to acquire desc 0\n",
- proc->pid, thread->pid);
- mutex_unlock(&context->context_mgr_node_lock);
- return -EINVAL;
- }
+ if (ctx_mgr_node)
ret = binder_inc_ref_for_node(
proc, ctx_mgr_node,
strong, NULL, &rdata);
- }
mutex_unlock(&context->context_mgr_node_lock);
}
if (ret)
@@ -3532,7 +3836,7 @@ static int binder_thread_write(struct binder_proc *proc,
binder_node_inner_unlock(buf_node);
}
trace_binder_transaction_buffer_release(buffer);
- binder_transaction_buffer_release(proc, buffer, NULL);
+ binder_transaction_buffer_release(proc, buffer, 0, false);
binder_alloc_free_buf(&proc->alloc, buffer);
break;
}
@@ -3892,7 +4196,7 @@ static int binder_thread_read(struct binder_proc *proc,
wait_event_interruptible(binder_user_error_wait,
binder_stop_on_user_error < 2);
}
- binder_set_nice(proc->default_priority);
+ binder_restore_priority(current, proc->default_priority);
}
if (non_block) {
@@ -3909,11 +4213,13 @@ static int binder_thread_read(struct binder_proc *proc,
while (1) {
uint32_t cmd;
- struct binder_transaction_data tr;
+ struct binder_transaction_data_secctx tr;
+ struct binder_transaction_data *trd = &tr.transaction_data;
struct binder_work *w = NULL;
struct list_head *list = NULL;
struct binder_transaction *t = NULL;
struct binder_thread *t_from;
+ size_t trsize = sizeof(*trd);
binder_inner_proc_lock(proc);
if (!binder_worklist_empty_ilocked(&thread->todo))
@@ -4107,45 +4413,47 @@ static int binder_thread_read(struct binder_proc *proc,
BUG_ON(t->buffer == NULL);
if (t->buffer->target_node) {
struct binder_node *target_node = t->buffer->target_node;
+ struct binder_priority node_prio;
- tr.target.ptr = target_node->ptr;
- tr.cookie = target_node->cookie;
- t->saved_priority = task_nice(current);
- if (t->priority < target_node->min_priority &&
- !(t->flags & TF_ONE_WAY))
- binder_set_nice(t->priority);
- else if (!(t->flags & TF_ONE_WAY) ||
- t->saved_priority > target_node->min_priority)
- binder_set_nice(target_node->min_priority);
+ trd->target.ptr = target_node->ptr;
+ trd->cookie = target_node->cookie;
+ node_prio.sched_policy = target_node->sched_policy;
+ node_prio.prio = target_node->min_priority;
+ binder_transaction_priority(current, t, node_prio,
+ target_node->inherit_rt);
cmd = BR_TRANSACTION;
} else {
- tr.target.ptr = 0;
- tr.cookie = 0;
+ trd->target.ptr = 0;
+ trd->cookie = 0;
cmd = BR_REPLY;
}
- tr.code = t->code;
- tr.flags = t->flags;
- tr.sender_euid = from_kuid(current_user_ns(), t->sender_euid);
+ trd->code = t->code;
+ trd->flags = t->flags;
+ trd->sender_euid = from_kuid(current_user_ns(), t->sender_euid);
t_from = binder_get_txn_from(t);
if (t_from) {
struct task_struct *sender = t_from->proc->tsk;
- tr.sender_pid = task_tgid_nr_ns(sender,
- task_active_pid_ns(current));
+ trd->sender_pid =
+ task_tgid_nr_ns(sender,
+ task_active_pid_ns(current));
} else {
- tr.sender_pid = 0;
+ trd->sender_pid = 0;
}
- tr.data_size = t->buffer->data_size;
- tr.offsets_size = t->buffer->offsets_size;
- tr.data.ptr.buffer = (binder_uintptr_t)
- ((uintptr_t)t->buffer->data +
- binder_alloc_get_user_buffer_offset(&proc->alloc));
- tr.data.ptr.offsets = tr.data.ptr.buffer +
+ trd->data_size = t->buffer->data_size;
+ trd->offsets_size = t->buffer->offsets_size;
+ trd->data.ptr.buffer = (uintptr_t)t->buffer->user_data;
+ trd->data.ptr.offsets = trd->data.ptr.buffer +
ALIGN(t->buffer->data_size,
sizeof(void *));
+ tr.secctx = t->security_ctx;
+ if (t->security_ctx) {
+ cmd = BR_TRANSACTION_SEC_CTX;
+ trsize = sizeof(tr);
+ }
if (put_user(cmd, (uint32_t __user *)ptr)) {
if (t_from)
binder_thread_dec_tmpref(t_from);
@@ -4156,7 +4464,7 @@ static int binder_thread_read(struct binder_proc *proc,
return -EFAULT;
}
ptr += sizeof(uint32_t);
- if (copy_to_user(ptr, &tr, sizeof(tr))) {
+ if (copy_to_user(ptr, &tr, trsize)) {
if (t_from)
binder_thread_dec_tmpref(t_from);
@@ -4165,7 +4473,7 @@ static int binder_thread_read(struct binder_proc *proc,
return -EFAULT;
}
- ptr += sizeof(tr);
+ ptr += trsize;
trace_binder_transaction_received(t);
binder_stat_br(proc, thread, cmd);
@@ -4173,16 +4481,18 @@ static int binder_thread_read(struct binder_proc *proc,
"%d:%d %s %d %d:%d, cmd %d size %zd-%zd ptr %016llx-%016llx\n",
proc->pid, thread->pid,
(cmd == BR_TRANSACTION) ? "BR_TRANSACTION" :
- "BR_REPLY",
+ (cmd == BR_TRANSACTION_SEC_CTX) ?
+ "BR_TRANSACTION_SEC_CTX" : "BR_REPLY",
t->debug_id, t_from ? t_from->proc->pid : 0,
t_from ? t_from->pid : 0, cmd,
t->buffer->data_size, t->buffer->offsets_size,
- (u64)tr.data.ptr.buffer, (u64)tr.data.ptr.offsets);
+ (u64)trd->data.ptr.buffer,
+ (u64)trd->data.ptr.offsets);
if (t_from)
binder_thread_dec_tmpref(t_from);
t->buffer->allow_user_free = 1;
- if (cmd == BR_TRANSACTION && !(t->flags & TF_ONE_WAY)) {
+ if (cmd != BR_REPLY && !(t->flags & TF_ONE_WAY)) {
binder_inner_proc_lock(thread->proc);
t->to_parent = thread->transaction_stack;
t->to_thread = thread;
@@ -4300,6 +4610,8 @@ static struct binder_thread *binder_get_thread_ilocked(
binder_stats_created(BINDER_STAT_THREAD);
thread->proc = proc;
thread->pid = current->pid;
+ get_task_struct(current);
+ thread->task = current;
atomic_set(&thread->tmp_ref, 0);
init_waitqueue_head(&thread->wait);
INIT_LIST_HEAD(&thread->todo);
@@ -4337,8 +4649,15 @@ static struct binder_thread *binder_get_thread(struct binder_proc *proc)
static void binder_free_proc(struct binder_proc *proc)
{
+ struct binder_device *device;
+
BUG_ON(!list_empty(&proc->todo));
BUG_ON(!list_empty(&proc->delivered_death));
+ device = container_of(proc->context, struct binder_device, context);
+ if (refcount_dec_and_test(&device->ref)) {
+ kfree(proc->context->name);
+ kfree(device);
+ }
binder_alloc_deferred_release(&proc->alloc);
put_task_struct(proc->tsk);
binder_stats_deleted(BINDER_STAT_PROC);
@@ -4350,6 +4669,7 @@ static void binder_free_thread(struct binder_thread *thread)
BUG_ON(!list_empty(&thread->todo));
binder_stats_deleted(BINDER_STAT_THREAD);
binder_proc_dec_tmpref(thread->proc);
+ put_task_struct(thread->task);
kfree(thread);
}
@@ -4530,7 +4850,8 @@ static int binder_ioctl_write_read(struct file *filp,
return ret;
}
-static int binder_ioctl_set_ctx_mgr(struct file *filp)
+static int binder_ioctl_set_ctx_mgr(struct file *filp,
+ struct flat_binder_object *fbo)
{
int ret = 0;
struct binder_proc *proc = filp->private_data;
@@ -4559,7 +4880,7 @@ static int binder_ioctl_set_ctx_mgr(struct file *filp)
} else {
context->binder_context_mgr_uid = curr_euid;
}
- new_node = binder_new_node(proc, NULL);
+ new_node = binder_new_node(proc, fbo);
if (!new_node) {
ret = -ENOMEM;
goto out;
@@ -4577,6 +4898,42 @@ static int binder_ioctl_set_ctx_mgr(struct file *filp)
return ret;
}
+static int binder_ioctl_get_node_info_for_ref(struct binder_proc *proc,
+ struct binder_node_info_for_ref *info)
+{
+ struct binder_node *node;
+ struct binder_context *context = proc->context;
+ __u32 handle = info->handle;
+
+ if (info->strong_count || info->weak_count || info->reserved1 ||
+ info->reserved2 || info->reserved3) {
+ binder_user_error("%d BINDER_GET_NODE_INFO_FOR_REF: only handle may be non-zero.",
+ proc->pid);
+ return -EINVAL;
+ }
+
+ /* This ioctl may only be used by the context manager */
+ mutex_lock(&context->context_mgr_node_lock);
+ if (!context->binder_context_mgr_node ||
+ context->binder_context_mgr_node->proc != proc) {
+ mutex_unlock(&context->context_mgr_node_lock);
+ return -EPERM;
+ }
+ mutex_unlock(&context->context_mgr_node_lock);
+
+ node = binder_get_node_from_ref(proc, handle, true, NULL);
+ if (!node)
+ return -EINVAL;
+
+ info->strong_count = node->local_strong_refs +
+ node->internal_strong_refs;
+ info->weak_count = node->local_weak_refs;
+
+ binder_put_node(node);
+
+ return 0;
+}
+
static int binder_ioctl_get_node_debug_info(struct binder_proc *proc,
struct binder_node_debug_info *info)
{
@@ -4646,8 +5003,20 @@ static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
binder_inner_proc_unlock(proc);
break;
}
+ case BINDER_SET_CONTEXT_MGR_EXT: {
+ struct flat_binder_object fbo;
+
+ if (copy_from_user(&fbo, ubuf, sizeof(fbo))) {
+ ret = -EINVAL;
+ goto err;
+ }
+ ret = binder_ioctl_set_ctx_mgr(filp, &fbo);
+ if (ret)
+ goto err;
+ break;
+ }
case BINDER_SET_CONTEXT_MGR:
- ret = binder_ioctl_set_ctx_mgr(filp);
+ ret = binder_ioctl_set_ctx_mgr(filp, NULL);
if (ret)
goto err;
break;
@@ -4671,6 +5040,25 @@ static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
}
break;
}
+ case BINDER_GET_NODE_INFO_FOR_REF: {
+ struct binder_node_info_for_ref info;
+
+ if (copy_from_user(&info, ubuf, sizeof(info))) {
+ ret = -EFAULT;
+ goto err;
+ }
+
+ ret = binder_ioctl_get_node_info_for_ref(proc, &info);
+ if (ret < 0)
+ goto err;
+
+ if (copy_to_user(ubuf, &info, sizeof(info))) {
+ ret = -EFAULT;
+ goto err;
+ }
+
+ break;
+ }
case BINDER_GET_NODE_DEBUG_INFO: {
struct binder_node_debug_info info;
@@ -4787,6 +5175,8 @@ static int binder_open(struct inode *nodp, struct file *filp)
{
struct binder_proc *proc;
struct binder_device *binder_dev;
+ struct binderfs_info *info;
+ struct dentry *binder_binderfs_dir_entry_proc = NULL;
binder_debug(BINDER_DEBUG_OPEN_CLOSE, "%s: %d:%d\n", __func__,
current->group_leader->pid, current->pid);
@@ -4800,9 +5190,24 @@ static int binder_open(struct inode *nodp, struct file *filp)
proc->tsk = current->group_leader;
mutex_init(&proc->files_lock);
INIT_LIST_HEAD(&proc->todo);
- proc->default_priority = task_nice(current);
- binder_dev = container_of(filp->private_data, struct binder_device,
- miscdev);
+ if (binder_supported_policy(current->policy)) {
+ proc->default_priority.sched_policy = current->policy;
+ proc->default_priority.prio = current->normal_prio;
+ } else {
+ proc->default_priority.sched_policy = SCHED_NORMAL;
+ proc->default_priority.prio = NICE_TO_PRIO(0);
+ }
+
+ /* binderfs stashes devices in i_private */
+ if (is_binderfs_device(nodp)) {
+ binder_dev = nodp->i_private;
+ info = nodp->i_sb->s_fs_info;
+ binder_binderfs_dir_entry_proc = info->proc_log_dir;
+ } else {
+ binder_dev = container_of(filp->private_data,
+ struct binder_device, miscdev);
+ }
+ refcount_inc(&binder_dev->ref);
proc->context = &binder_dev->context;
binder_alloc_init(&proc->alloc);
@@ -4830,7 +5235,36 @@ static int binder_open(struct inode *nodp, struct file *filp)
proc->debugfs_entry = debugfs_create_file(strbuf, 0444,
binder_debugfs_dir_entry_proc,
(void *)(unsigned long)proc->pid,
- &binder_proc_fops);
+ &proc_fops);
+ }
+
+ if (binder_binderfs_dir_entry_proc) {
+ char strbuf[11];
+ struct dentry *binderfs_entry;
+
+ snprintf(strbuf, sizeof(strbuf), "%u", proc->pid);
+ /*
+ * Similar to debugfs, the process specific log file is shared
+ * between contexts. If the file has already been created for a
+ * process, the following binderfs_create_file() call will
+ * fail with error code EEXIST if another context of the same
+ * process invoked binder_open(). This is ok since same as
+ * debugfs, the log file will contain information on all
+ * contexts of a given PID.
+ */
+ binderfs_entry = binderfs_create_file(binder_binderfs_dir_entry_proc,
+ strbuf, &proc_fops, (void *)(unsigned long)proc->pid);
+ if (!IS_ERR(binderfs_entry)) {
+ proc->binderfs_entry = binderfs_entry;
+ } else {
+ int error;
+
+ error = PTR_ERR(binderfs_entry);
+ if (error != -EEXIST) {
+ pr_warn("Unable to create file %s in binderfs (error %d)\n",
+ strbuf, error);
+ }
+ }
}
return 0;
@@ -4872,6 +5306,12 @@ static int binder_release(struct inode *nodp, struct file *filp)
struct binder_proc *proc = filp->private_data;
debugfs_remove(proc->debugfs_entry);
+
+ if (proc->binderfs_entry) {
+ binderfs_remove_file(proc->binderfs_entry);
+ proc->binderfs_entry = NULL;
+ }
+
binder_defer_work(proc, BINDER_DEFERRED_RELEASE);
return 0;
@@ -5094,13 +5534,14 @@ static void print_binder_transaction_ilocked(struct seq_file *m,
spin_lock(&t->lock);
to_proc = t->to_proc;
seq_printf(m,
- "%s %d: %pK from %d:%d to %d:%d code %x flags %x pri %ld r%d",
+ "%s %d: %pK from %d:%d to %d:%d code %x flags %x pri %d:%d r%d",
prefix, t->debug_id, t,
t->from ? t->from->proc->pid : 0,
t->from ? t->from->pid : 0,
to_proc ? to_proc->pid : 0,
t->to_thread ? t->to_thread->pid : 0,
- t->code, t->flags, t->priority, t->need_reply);
+ t->code, t->flags, t->priority.sched_policy,
+ t->priority.prio, t->need_reply);
spin_unlock(&t->lock);
if (proc != to_proc) {
@@ -5120,7 +5561,7 @@ static void print_binder_transaction_ilocked(struct seq_file *m,
seq_printf(m, " node %d", buffer->target_node->debug_id);
seq_printf(m, " size %zd:%zd data %pK\n",
buffer->data_size, buffer->offsets_size,
- buffer->data);
+ buffer->user_data);
}
static void print_binder_work_ilocked(struct seq_file *m,
@@ -5218,8 +5659,9 @@ static void print_binder_node_nilocked(struct seq_file *m,
hlist_for_each_entry(ref, &node->refs, node_entry)
count++;
- seq_printf(m, " node %d: u%016llx c%016llx hs %d hw %d ls %d lw %d is %d iw %d tr %d",
+ seq_printf(m, " node %d: u%016llx c%016llx pri %d:%d hs %d hw %d ls %d lw %d is %d iw %d tr %d",
node->debug_id, (u64)node->ptr, (u64)node->cookie,
+ node->sched_policy, node->min_priority,
node->has_strong_ref, node->has_weak_ref,
node->local_strong_refs, node->local_weak_refs,
node->internal_strong_refs, count, node->tmp_refs);
@@ -5269,6 +5711,9 @@ static void print_binder_proc(struct seq_file *m,
for (n = rb_first(&proc->nodes); n != NULL; n = rb_next(n)) {
struct binder_node *node = rb_entry(n, struct binder_node,
rb_node);
+ if (!print_all && !node->has_async_transaction)
+ continue;
+
/*
* take a temporary reference on the node so it
* survives and isn't removed from the tree
@@ -5473,7 +5918,7 @@ static void print_binder_proc_stats(struct seq_file *m,
}
-static int binder_state_show(struct seq_file *m, void *unused)
+int binder_state_show(struct seq_file *m, void *unused)
{
struct binder_proc *proc;
struct binder_node *node;
@@ -5512,7 +5957,7 @@ static int binder_state_show(struct seq_file *m, void *unused)
return 0;
}
-static int binder_stats_show(struct seq_file *m, void *unused)
+int binder_stats_show(struct seq_file *m, void *unused)
{
struct binder_proc *proc;
@@ -5528,7 +5973,7 @@ static int binder_stats_show(struct seq_file *m, void *unused)
return 0;
}
-static int binder_transactions_show(struct seq_file *m, void *unused)
+int binder_transactions_show(struct seq_file *m, void *unused)
{
struct binder_proc *proc;
@@ -5541,7 +5986,7 @@ static int binder_transactions_show(struct seq_file *m, void *unused)
return 0;
}
-static int binder_proc_show(struct seq_file *m, void *unused)
+static int proc_show(struct seq_file *m, void *unused)
{
struct binder_proc *itr;
int pid = (unsigned long)m->private;
@@ -5584,7 +6029,7 @@ static void print_binder_transaction_log_entry(struct seq_file *m,
"\n" : " (incomplete)\n");
}
-static int binder_transaction_log_show(struct seq_file *m, void *unused)
+int binder_transaction_log_show(struct seq_file *m, void *unused)
{
struct binder_transaction_log *log = m->private;
unsigned int log_cur = atomic_read(&log->cur);
@@ -5605,7 +6050,7 @@ static int binder_transaction_log_show(struct seq_file *m, void *unused)
return 0;
}
-static const struct file_operations binder_fops = {
+const struct file_operations binder_fops = {
.owner = THIS_MODULE,
.poll = binder_poll,
.unlocked_ioctl = binder_ioctl,
@@ -5616,11 +6061,6 @@ static const struct file_operations binder_fops = {
.release = binder_release,
};
-BINDER_DEBUG_ENTRY(state);
-BINDER_DEBUG_ENTRY(stats);
-BINDER_DEBUG_ENTRY(transactions);
-BINDER_DEBUG_ENTRY(transaction_log);
-
static int __init init_binder_device(const char *name)
{
int ret;
@@ -5634,6 +6074,7 @@ static int __init init_binder_device(const char *name)
binder_device->miscdev.minor = MISC_DYNAMIC_MINOR;
binder_device->miscdev.name = name;
+ refcount_set(&binder_device->ref, 1);
binder_device->context.binder_context_mgr_uid = INVALID_UID;
binder_device->context.name = name;
mutex_init(&binder_device->context.context_mgr_node_lock);
@@ -5652,9 +6093,10 @@ static int __init init_binder_device(const char *name)
static int __init binder_init(void)
{
int ret;
- char *device_name, *device_names, *device_tmp;
+ char *device_name, *device_tmp;
struct binder_device *device;
struct hlist_node *tmp;
+ char *device_names = NULL;
ret = binder_alloc_shrinker_init();
if (ret)
@@ -5696,24 +6138,30 @@ static int __init binder_init(void)
&binder_transaction_log_fops);
}
- /*
- * Copy the module_parameter string, because we don't want to
- * tokenize it in-place.
- */
- device_names = kzalloc(strlen(binder_devices_param) + 1, GFP_KERNEL);
- if (!device_names) {
- ret = -ENOMEM;
- goto err_alloc_device_names_failed;
- }
- strcpy(device_names, binder_devices_param);
+ if (!IS_ENABLED(CONFIG_ANDROID_BINDERFS) &&
+ strcmp(binder_devices_param, "") != 0) {
+ /*
+ * Copy the module_parameter string, because we don't want to
+ * tokenize it in-place.
+ */
+ device_names = kstrdup(binder_devices_param, GFP_KERNEL);
+ if (!device_names) {
+ ret = -ENOMEM;
+ goto err_alloc_device_names_failed;
+ }
- device_tmp = device_names;
- while ((device_name = strsep(&device_tmp, ","))) {
- ret = init_binder_device(device_name);
- if (ret)
- goto err_init_binder_device_failed;
+ device_tmp = device_names;
+ while ((device_name = strsep(&device_tmp, ","))) {
+ ret = init_binder_device(device_name);
+ if (ret)
+ goto err_init_binder_device_failed;
+ }
}
+ ret = init_binderfs();
+ if (ret)
+ goto err_init_binder_device_failed;
+
return ret;
err_init_binder_device_failed:
diff --git a/drivers/android/binder_alloc.c b/drivers/android/binder_alloc.c
index 3371b98..f0ff5fc 100644
--- a/drivers/android/binder_alloc.c
+++ b/drivers/android/binder_alloc.c
@@ -29,6 +29,8 @@
#include <linux/list_lru.h>
#include <linux/ratelimit.h>
#include <asm/cacheflush.h>
+#include <linux/uaccess.h>
+#include <linux/highmem.h>
#include "binder_alloc.h"
#include "binder_trace.h"
@@ -67,9 +69,8 @@ static size_t binder_alloc_buffer_size(struct binder_alloc *alloc,
struct binder_buffer *buffer)
{
if (list_is_last(&buffer->entry, &alloc->buffers))
- return (u8 *)alloc->buffer +
- alloc->buffer_size - (u8 *)buffer->data;
- return (u8 *)binder_buffer_next(buffer)->data - (u8 *)buffer->data;
+ return alloc->buffer + alloc->buffer_size - buffer->user_data;
+ return binder_buffer_next(buffer)->user_data - buffer->user_data;
}
static void binder_insert_free_buffer(struct binder_alloc *alloc,
@@ -119,9 +120,9 @@ static void binder_insert_allocated_buffer_locked(
buffer = rb_entry(parent, struct binder_buffer, rb_node);
BUG_ON(buffer->free);
- if (new_buffer->data < buffer->data)
+ if (new_buffer->user_data < buffer->user_data)
p = &parent->rb_left;
- else if (new_buffer->data > buffer->data)
+ else if (new_buffer->user_data > buffer->user_data)
p = &parent->rb_right;
else
BUG();
@@ -136,17 +137,17 @@ static struct binder_buffer *binder_alloc_prepare_to_free_locked(
{
struct rb_node *n = alloc->allocated_buffers.rb_node;
struct binder_buffer *buffer;
- void *kern_ptr;
+ void __user *uptr;
- kern_ptr = (void *)(user_ptr - alloc->user_buffer_offset);
+ uptr = (void __user *)user_ptr;
while (n) {
buffer = rb_entry(n, struct binder_buffer, rb_node);
BUG_ON(buffer->free);
- if (kern_ptr < buffer->data)
+ if (uptr < buffer->user_data)
n = n->rb_left;
- else if (kern_ptr > buffer->data)
+ else if (uptr > buffer->user_data)
n = n->rb_right;
else {
/*
@@ -186,9 +187,9 @@ struct binder_buffer *binder_alloc_prepare_to_free(struct binder_alloc *alloc,
}
static int binder_update_page_range(struct binder_alloc *alloc, int allocate,
- void *start, void *end)
+ void __user *start, void __user *end)
{
- void *page_addr;
+ void __user *page_addr;
unsigned long user_page_addr;
struct binder_lru_page *page;
struct vm_area_struct *vma = NULL;
@@ -263,18 +264,7 @@ static int binder_update_page_range(struct binder_alloc *alloc, int allocate,
page->alloc = alloc;
INIT_LIST_HEAD(&page->lru);
- ret = map_kernel_range_noflush((unsigned long)page_addr,
- PAGE_SIZE, PAGE_KERNEL,
- &page->page_ptr);
- flush_cache_vmap((unsigned long)page_addr,
- (unsigned long)page_addr + PAGE_SIZE);
- if (ret != 1) {
- pr_err("%d: binder_alloc_buf failed to map page at %pK in kernel\n",
- alloc->pid, page_addr);
- goto err_map_kernel_failed;
- }
- user_page_addr =
- (uintptr_t)page_addr + alloc->user_buffer_offset;
+ user_page_addr = (uintptr_t)page_addr;
ret = vm_insert_page(vma, user_page_addr, page[0].page_ptr);
if (ret) {
pr_err("%d: binder_alloc_buf failed to map page at %lx in userspace\n",
@@ -313,8 +303,6 @@ static int binder_update_page_range(struct binder_alloc *alloc, int allocate,
continue;
err_vm_insert_page_failed:
- unmap_kernel_range((unsigned long)page_addr, PAGE_SIZE);
-err_map_kernel_failed:
__free_page(page->page_ptr);
page->page_ptr = NULL;
err_alloc_page_failed:
@@ -359,19 +347,57 @@ static inline struct vm_area_struct *binder_alloc_get_vma(
return vma;
}
+static void debug_low_async_space_locked(struct binder_alloc *alloc, int pid)
+{
+ /*
+ * Find the amount and size of buffers allocated by the current caller;
+ * The idea is that once we cross the threshold, whoever is responsible
+ * for the low async space is likely to try to send another async txn,
+ * and at some point we'll catch them in the act. This is more efficient
+ * than keeping a map per pid.
+ */
+ struct rb_node *n = alloc->free_buffers.rb_node;
+ struct binder_buffer *buffer;
+ size_t total_alloc_size = 0;
+ size_t num_buffers = 0;
+
+ for (n = rb_first(&alloc->allocated_buffers); n != NULL;
+ n = rb_next(n)) {
+ buffer = rb_entry(n, struct binder_buffer, rb_node);
+ if (buffer->pid != pid)
+ continue;
+ if (!buffer->async_transaction)
+ continue;
+ total_alloc_size += binder_alloc_buffer_size(alloc, buffer)
+ + sizeof(struct binder_buffer);
+ num_buffers++;
+ }
+
+ /*
+ * Warn if this pid has more than 50 transactions, or more than 50% of
+ * async space (which is 25% of total buffer size).
+ */
+ if (num_buffers > 50 || total_alloc_size > alloc->buffer_size / 4) {
+ binder_alloc_debug(BINDER_DEBUG_USER_ERROR,
+ "%d: pid %d spamming oneway? %zd buffers allocated for a total size of %zd\n",
+ alloc->pid, pid, num_buffers, total_alloc_size);
+ }
+}
+
static struct binder_buffer *binder_alloc_new_buf_locked(
struct binder_alloc *alloc,
size_t data_size,
size_t offsets_size,
size_t extra_buffers_size,
- int is_async)
+ int is_async,
+ int pid)
{
struct rb_node *n = alloc->free_buffers.rb_node;
struct binder_buffer *buffer;
size_t buffer_size;
struct rb_node *best_fit = NULL;
- void *has_page_addr;
- void *end_page_addr;
+ void __user *has_page_addr;
+ void __user *end_page_addr;
size_t size, data_offsets_size;
int ret;
@@ -469,15 +495,15 @@ static struct binder_buffer *binder_alloc_new_buf_locked(
"%d: binder_alloc_buf size %zd got buffer %pK size %zd\n",
alloc->pid, size, buffer, buffer_size);
- has_page_addr =
- (void *)(((uintptr_t)buffer->data + buffer_size) & PAGE_MASK);
+ has_page_addr = (void __user *)
+ (((uintptr_t)buffer->user_data + buffer_size) & PAGE_MASK);
WARN_ON(n && buffer_size != size);
end_page_addr =
- (void *)PAGE_ALIGN((uintptr_t)buffer->data + size);
+ (void __user *)PAGE_ALIGN((uintptr_t)buffer->user_data + size);
if (end_page_addr > has_page_addr)
end_page_addr = has_page_addr;
- ret = binder_update_page_range(alloc, 1,
- (void *)PAGE_ALIGN((uintptr_t)buffer->data), end_page_addr);
+ ret = binder_update_page_range(alloc, 1, (void __user *)
+ PAGE_ALIGN((uintptr_t)buffer->user_data), end_page_addr);
if (ret)
return ERR_PTR(ret);
@@ -490,7 +516,7 @@ static struct binder_buffer *binder_alloc_new_buf_locked(
__func__, alloc->pid);
goto err_alloc_buf_struct_failed;
}
- new_buffer->data = (u8 *)buffer->data + size;
+ new_buffer->user_data = (u8 __user *)buffer->user_data + size;
list_add(&new_buffer->entry, &buffer->entry);
new_buffer->free = 1;
binder_insert_free_buffer(alloc, new_buffer);
@@ -507,17 +533,26 @@ static struct binder_buffer *binder_alloc_new_buf_locked(
buffer->offsets_size = offsets_size;
buffer->async_transaction = is_async;
buffer->extra_buffers_size = extra_buffers_size;
+ buffer->pid = pid;
if (is_async) {
alloc->free_async_space -= size + sizeof(struct binder_buffer);
binder_alloc_debug(BINDER_DEBUG_BUFFER_ALLOC_ASYNC,
"%d: binder_alloc_buf size %zd async free %zd\n",
alloc->pid, size, alloc->free_async_space);
+ if (alloc->free_async_space < alloc->buffer_size / 10) {
+ /*
+ * Start detecting spammers once we have less than 20%
+ * of async space left (which is less than 10% of total
+ * buffer size).
+ */
+ debug_low_async_space_locked(alloc, pid);
+ }
}
return buffer;
err_alloc_buf_struct_failed:
- binder_update_page_range(alloc, 0,
- (void *)PAGE_ALIGN((uintptr_t)buffer->data),
+ binder_update_page_range(alloc, 0, (void __user *)
+ PAGE_ALIGN((uintptr_t)buffer->user_data),
end_page_addr);
return ERR_PTR(-ENOMEM);
}
@@ -529,6 +564,7 @@ static struct binder_buffer *binder_alloc_new_buf_locked(
* @offsets_size: user specified buffer offset
* @extra_buffers_size: size of extra space for meta-data (eg, security context)
* @is_async: buffer for async transaction
+ * @pid: pid to attribute allocation to (used for debugging)
*
* Allocate a new buffer given the requested sizes. Returns
* the kernel version of the buffer pointer. The size allocated
@@ -541,25 +577,27 @@ struct binder_buffer *binder_alloc_new_buf(struct binder_alloc *alloc,
size_t data_size,
size_t offsets_size,
size_t extra_buffers_size,
- int is_async)
+ int is_async,
+ int pid)
{
struct binder_buffer *buffer;
mutex_lock(&alloc->mutex);
buffer = binder_alloc_new_buf_locked(alloc, data_size, offsets_size,
- extra_buffers_size, is_async);
+ extra_buffers_size, is_async, pid);
mutex_unlock(&alloc->mutex);
return buffer;
}
-static void *buffer_start_page(struct binder_buffer *buffer)
+static void __user *buffer_start_page(struct binder_buffer *buffer)
{
- return (void *)((uintptr_t)buffer->data & PAGE_MASK);
+ return (void __user *)((uintptr_t)buffer->user_data & PAGE_MASK);
}
-static void *prev_buffer_end_page(struct binder_buffer *buffer)
+static void __user *prev_buffer_end_page(struct binder_buffer *buffer)
{
- return (void *)(((uintptr_t)(buffer->data) - 1) & PAGE_MASK);
+ return (void __user *)
+ (((uintptr_t)(buffer->user_data) - 1) & PAGE_MASK);
}
static void binder_delete_free_buffer(struct binder_alloc *alloc,
@@ -574,7 +612,8 @@ static void binder_delete_free_buffer(struct binder_alloc *alloc,
to_free = false;
binder_alloc_debug(BINDER_DEBUG_BUFFER_ALLOC,
"%d: merge free, buffer %pK share page with %pK\n",
- alloc->pid, buffer->data, prev->data);
+ alloc->pid, buffer->user_data,
+ prev->user_data);
}
if (!list_is_last(&buffer->entry, &alloc->buffers)) {
@@ -584,23 +623,24 @@ static void binder_delete_free_buffer(struct binder_alloc *alloc,
binder_alloc_debug(BINDER_DEBUG_BUFFER_ALLOC,
"%d: merge free, buffer %pK share page with %pK\n",
alloc->pid,
- buffer->data,
- next->data);
+ buffer->user_data,
+ next->user_data);
}
}
- if (PAGE_ALIGNED(buffer->data)) {
+ if (PAGE_ALIGNED(buffer->user_data)) {
binder_alloc_debug(BINDER_DEBUG_BUFFER_ALLOC,
"%d: merge free, buffer start %pK is page aligned\n",
- alloc->pid, buffer->data);
+ alloc->pid, buffer->user_data);
to_free = false;
}
if (to_free) {
binder_alloc_debug(BINDER_DEBUG_BUFFER_ALLOC,
"%d: merge free, buffer %pK do not share page with %pK or %pK\n",
- alloc->pid, buffer->data,
- prev->data, next ? next->data : NULL);
+ alloc->pid, buffer->user_data,
+ prev->user_data,
+ next ? next->user_data : NULL);
binder_update_page_range(alloc, 0, buffer_start_page(buffer),
buffer_start_page(buffer) + PAGE_SIZE);
}
@@ -626,8 +666,8 @@ static void binder_free_buf_locked(struct binder_alloc *alloc,
BUG_ON(buffer->free);
BUG_ON(size > buffer_size);
BUG_ON(buffer->transaction != NULL);
- BUG_ON(buffer->data < alloc->buffer);
- BUG_ON(buffer->data > alloc->buffer + alloc->buffer_size);
+ BUG_ON(buffer->user_data < alloc->buffer);
+ BUG_ON(buffer->user_data > alloc->buffer + alloc->buffer_size);
if (buffer->async_transaction) {
alloc->free_async_space += size + sizeof(struct binder_buffer);
@@ -638,8 +678,9 @@ static void binder_free_buf_locked(struct binder_alloc *alloc,
}
binder_update_page_range(alloc, 0,
- (void *)PAGE_ALIGN((uintptr_t)buffer->data),
- (void *)(((uintptr_t)buffer->data + buffer_size) & PAGE_MASK));
+ (void __user *)PAGE_ALIGN((uintptr_t)buffer->user_data),
+ (void __user *)(((uintptr_t)
+ buffer->user_data + buffer_size) & PAGE_MASK));
rb_erase(&buffer->rb_node, &alloc->allocated_buffers);
buffer->free = 1;
@@ -695,7 +736,6 @@ int binder_alloc_mmap_handler(struct binder_alloc *alloc,
struct vm_area_struct *vma)
{
int ret;
- struct vm_struct *area;
const char *failure_string;
struct binder_buffer *buffer;
@@ -706,28 +746,9 @@ int binder_alloc_mmap_handler(struct binder_alloc *alloc,
goto err_already_mapped;
}
- area = get_vm_area(vma->vm_end - vma->vm_start, VM_ALLOC);
- if (area == NULL) {
- ret = -ENOMEM;
- failure_string = "get_vm_area";
- goto err_get_vm_area_failed;
- }
- alloc->buffer = area->addr;
- alloc->user_buffer_offset =
- vma->vm_start - (uintptr_t)alloc->buffer;
+ alloc->buffer = (void __user *)vma->vm_start;
mutex_unlock(&binder_alloc_mmap_lock);
-#ifdef CONFIG_CPU_CACHE_VIPT
- if (cache_is_vipt_aliasing()) {
- while (CACHE_COLOUR(
- (vma->vm_start ^ (uint32_t)alloc->buffer))) {
- pr_info("%s: %d %lx-%lx maps %pK bad alignment\n",
- __func__, alloc->pid, vma->vm_start,
- vma->vm_end, alloc->buffer);
- vma->vm_start += PAGE_SIZE;
- }
- }
-#endif
alloc->pages = kcalloc((vma->vm_end - vma->vm_start) / PAGE_SIZE,
sizeof(alloc->pages[0]),
GFP_KERNEL);
@@ -745,7 +766,7 @@ int binder_alloc_mmap_handler(struct binder_alloc *alloc,
goto err_alloc_buf_struct_failed;
}
- buffer->data = alloc->buffer;
+ buffer->user_data = alloc->buffer;
list_add(&buffer->entry, &alloc->buffers);
buffer->free = 1;
binder_insert_free_buffer(alloc, buffer);
@@ -760,9 +781,7 @@ int binder_alloc_mmap_handler(struct binder_alloc *alloc,
alloc->pages = NULL;
err_alloc_pages_failed:
mutex_lock(&binder_alloc_mmap_lock);
- vfree(alloc->buffer);
alloc->buffer = NULL;
-err_get_vm_area_failed:
err_already_mapped:
mutex_unlock(&binder_alloc_mmap_lock);
binder_alloc_debug(BINDER_DEBUG_USER_ERROR,
@@ -808,7 +827,7 @@ void binder_alloc_deferred_release(struct binder_alloc *alloc)
int i;
for (i = 0; i < alloc->buffer_size / PAGE_SIZE; i++) {
- void *page_addr;
+ void __user *page_addr;
bool on_lru;
if (!alloc->pages[i].page_ptr)
@@ -821,12 +840,10 @@ void binder_alloc_deferred_release(struct binder_alloc *alloc)
"%s: %d: page %d at %pK %s\n",
__func__, alloc->pid, i, page_addr,
on_lru ? "on lru" : "active");
- unmap_kernel_range((unsigned long)page_addr, PAGE_SIZE);
__free_page(alloc->pages[i].page_ptr);
page_count++;
}
kfree(alloc->pages);
- vfree(alloc->buffer);
}
mutex_unlock(&alloc->mutex);
if (alloc->vma_vm_mm)
@@ -841,7 +858,7 @@ static void print_binder_buffer(struct seq_file *m, const char *prefix,
struct binder_buffer *buffer)
{
seq_printf(m, "%s %d: %pK size %zd:%zd:%zd %s\n",
- prefix, buffer->debug_id, buffer->data,
+ prefix, buffer->debug_id, buffer->user_data,
buffer->data_size, buffer->offsets_size,
buffer->extra_buffers_size,
buffer->transaction ? "active" : "delivered");
@@ -980,9 +997,7 @@ enum lru_status binder_alloc_free_page(struct list_head *item,
if (vma) {
trace_binder_unmap_user_start(alloc, index);
- zap_page_range(vma,
- page_addr + alloc->user_buffer_offset,
- PAGE_SIZE);
+ zap_page_range(vma, page_addr, PAGE_SIZE);
trace_binder_unmap_user_end(alloc, index);
}
@@ -991,7 +1006,6 @@ enum lru_status binder_alloc_free_page(struct list_head *item,
trace_binder_unmap_kernel_start(alloc, index);
- unmap_kernel_range(page_addr, PAGE_SIZE);
__free_page(page->page_ptr);
page->page_ptr = NULL;
@@ -1058,3 +1072,173 @@ int binder_alloc_shrinker_init(void)
}
return ret;
}
+
+/**
+ * check_buffer() - verify that buffer/offset is safe to access
+ * @alloc: binder_alloc for this proc
+ * @buffer: binder buffer to be accessed
+ * @offset: offset into @buffer data
+ * @bytes: bytes to access from offset
+ *
+ * Check that the @offset/@bytes are within the size of the given
+ * @buffer and that the buffer is currently active and not freeable.
+ * Offsets must also be multiples of sizeof(u32). The kernel is
+ * allowed to touch the buffer in two cases:
+ *
+ * 1) when the buffer is being created:
+ * (buffer->free == 0 && buffer->allow_user_free == 0)
+ * 2) when the buffer is being torn down:
+ * (buffer->free == 0 && buffer->transaction == NULL).
+ *
+ * Return: true if the buffer is safe to access
+ */
+static inline bool check_buffer(struct binder_alloc *alloc,
+ struct binder_buffer *buffer,
+ binder_size_t offset, size_t bytes)
+{
+ size_t buffer_size = binder_alloc_buffer_size(alloc, buffer);
+
+ return buffer_size >= bytes &&
+ offset <= buffer_size - bytes &&
+ IS_ALIGNED(offset, sizeof(u32)) &&
+ !buffer->free &&
+ (!buffer->allow_user_free || !buffer->transaction);
+}
+
+/**
+ * binder_alloc_get_page() - get kernel pointer for given buffer offset
+ * @alloc: binder_alloc for this proc
+ * @buffer: binder buffer to be accessed
+ * @buffer_offset: offset into @buffer data
+ * @pgoffp: address to copy final page offset to
+ *
+ * Lookup the struct page corresponding to the address
+ * at @buffer_offset into @buffer->user_data. If @pgoffp is not
+ * NULL, the byte-offset into the page is written there.
+ *
+ * The caller is responsible to ensure that the offset points
+ * to a valid address within the @buffer and that @buffer is
+ * not freeable by the user. Since it can't be freed, we are
+ * guaranteed that the corresponding elements of @alloc->pages[]
+ * cannot change.
+ *
+ * Return: struct page
+ */
+static struct page *binder_alloc_get_page(struct binder_alloc *alloc,
+ struct binder_buffer *buffer,
+ binder_size_t buffer_offset,
+ pgoff_t *pgoffp)
+{
+ binder_size_t buffer_space_offset = buffer_offset +
+ (buffer->user_data - alloc->buffer);
+ pgoff_t pgoff = buffer_space_offset & ~PAGE_MASK;
+ size_t index = buffer_space_offset >> PAGE_SHIFT;
+ struct binder_lru_page *lru_page;
+
+ lru_page = &alloc->pages[index];
+ *pgoffp = pgoff;
+ return lru_page->page_ptr;
+}
+
+/**
+ * binder_alloc_copy_user_to_buffer() - copy src user to tgt user
+ * @alloc: binder_alloc for this proc
+ * @buffer: binder buffer to be accessed
+ * @buffer_offset: offset into @buffer data
+ * @from: userspace pointer to source buffer
+ * @bytes: bytes to copy
+ *
+ * Copy bytes from source userspace to target buffer.
+ *
+ * Return: bytes remaining to be copied
+ */
+unsigned long
+binder_alloc_copy_user_to_buffer(struct binder_alloc *alloc,
+ struct binder_buffer *buffer,
+ binder_size_t buffer_offset,
+ const void __user *from,
+ size_t bytes)
+{
+ if (!check_buffer(alloc, buffer, buffer_offset, bytes))
+ return bytes;
+
+ while (bytes) {
+ unsigned long size;
+ unsigned long ret;
+ struct page *page;
+ pgoff_t pgoff;
+ void *kptr;
+
+ page = binder_alloc_get_page(alloc, buffer,
+ buffer_offset, &pgoff);
+ size = min_t(size_t, bytes, PAGE_SIZE - pgoff);
+ kptr = kmap(page) + pgoff;
+ ret = copy_from_user(kptr, from, size);
+ kunmap(page);
+ if (ret)
+ return bytes - size + ret;
+ bytes -= size;
+ from += size;
+ buffer_offset += size;
+ }
+ return 0;
+}
+
+static void binder_alloc_do_buffer_copy(struct binder_alloc *alloc,
+ bool to_buffer,
+ struct binder_buffer *buffer,
+ binder_size_t buffer_offset,
+ void *ptr,
+ size_t bytes)
+{
+ /* All copies must be 32-bit aligned and 32-bit size */
+ BUG_ON(!check_buffer(alloc, buffer, buffer_offset, bytes));
+
+ while (bytes) {
+ unsigned long size;
+ struct page *page;
+ pgoff_t pgoff;
+ void *tmpptr;
+ void *base_ptr;
+
+ page = binder_alloc_get_page(alloc, buffer,
+ buffer_offset, &pgoff);
+ size = min_t(size_t, bytes, PAGE_SIZE - pgoff);
+ base_ptr = kmap_atomic(page);
+ tmpptr = base_ptr + pgoff;
+ if (to_buffer)
+ memcpy(tmpptr, ptr, size);
+ else
+ memcpy(ptr, tmpptr, size);
+ /*
+ * kunmap_atomic() takes care of flushing the cache
+ * if this device has VIVT cache arch
+ */
+ kunmap_atomic(base_ptr);
+ bytes -= size;
+ pgoff = 0;
+ ptr = ptr + size;
+ buffer_offset += size;
+ }
+}
+
+void binder_alloc_copy_to_buffer(struct binder_alloc *alloc,
+ struct binder_buffer *buffer,
+ binder_size_t buffer_offset,
+ void *src,
+ size_t bytes)
+{
+ binder_alloc_do_buffer_copy(alloc, true, buffer, buffer_offset,
+ src, bytes);
+}
+
+void binder_alloc_copy_from_buffer(struct binder_alloc *alloc,
+ void *dest,
+ struct binder_buffer *buffer,
+ binder_size_t buffer_offset,
+ size_t bytes)
+{
+ binder_alloc_do_buffer_copy(alloc, false, buffer, buffer_offset,
+ dest, bytes);
+}
+
diff --git a/drivers/android/binder_alloc.h b/drivers/android/binder_alloc.h
index fb3238c..3daa3e2 100644
--- a/drivers/android/binder_alloc.h
+++ b/drivers/android/binder_alloc.h
@@ -22,6 +22,7 @@
#include <linux/vmalloc.h>
#include <linux/slab.h>
#include <linux/list_lru.h>
+#include <uapi/linux/android/binder.h>
extern struct list_lru binder_alloc_lru;
struct binder_transaction;
@@ -30,16 +31,17 @@ struct binder_transaction;
* struct binder_buffer - buffer used for binder transactions
* @entry: entry alloc->buffers
* @rb_node: node for allocated_buffers/free_buffers rb trees
- * @free: true if buffer is free
- * @allow_user_free: describe the second member of struct blah,
- * @async_transaction: describe the second member of struct blah,
- * @debug_id: describe the second member of struct blah,
- * @transaction: describe the second member of struct blah,
- * @target_node: describe the second member of struct blah,
- * @data_size: describe the second member of struct blah,
- * @offsets_size: describe the second member of struct blah,
- * @extra_buffers_size: describe the second member of struct blah,
- * @data:i describe the second member of struct blah,
+ * @free: %true if buffer is free
+ * @allow_user_free: %true if user is allowed to free buffer
+ * @async_transaction: %true if buffer is in use for an async txn
+ * @debug_id: unique ID for debugging
+ * @transaction: pointer to associated struct binder_transaction
+ * @target_node: struct binder_node associated with this buffer
+ * @data_size: size of @transaction data
+ * @offsets_size: size of array of offsets
+ * @extra_buffers_size: size of space for other objects (like sg lists)
+ * @user_data: user pointer to base of buffer space
+ * @pid: pid to attribute the buffer to (caller)
*
* Bookkeeping structure for binder transaction buffers
*/
@@ -58,7 +60,8 @@ struct binder_buffer {
size_t data_size;
size_t offsets_size;
size_t extra_buffers_size;
- void *data;
+ void __user *user_data;
+ int pid;
};
/**
@@ -81,7 +84,6 @@ struct binder_lru_page {
* (invariant after init)
* @vma_vm_mm: copy of vma->vm_mm (invarient after mmap)
* @buffer: base of per-proc address space mapped via mmap
- * @user_buffer_offset: offset between user and kernel VAs for buffer
* @buffers: list of all buffers for this proc
* @free_buffers: rb tree of buffers available for allocation
* sorted by size
@@ -102,8 +104,7 @@ struct binder_alloc {
struct mutex mutex;
struct vm_area_struct *vma;
struct mm_struct *vma_vm_mm;
- void *buffer;
- ptrdiff_t user_buffer_offset;
+ void __user *buffer;
struct list_head buffers;
struct rb_root free_buffers;
struct rb_root allocated_buffers;
@@ -127,7 +128,8 @@ extern struct binder_buffer *binder_alloc_new_buf(struct binder_alloc *alloc,
size_t data_size,
size_t offsets_size,
size_t extra_buffers_size,
- int is_async);
+ int is_async,
+ int pid);
extern void binder_alloc_init(struct binder_alloc *alloc);
extern int binder_alloc_shrinker_init(void);
extern void binder_alloc_vma_close(struct binder_alloc *alloc);
@@ -162,26 +164,24 @@ binder_alloc_get_free_async_space(struct binder_alloc *alloc)
return free_async_space;
}
-/**
- * binder_alloc_get_user_buffer_offset() - get offset between kernel/user addrs
- * @alloc: binder_alloc for this proc
- *
- * Return: the offset between kernel and user-space addresses to use for
- * virtual address conversion
- */
-static inline ptrdiff_t
-binder_alloc_get_user_buffer_offset(struct binder_alloc *alloc)
-{
- /*
- * user_buffer_offset is constant if vma is set and
- * undefined if vma is not set. It is possible to
- * get here with !alloc->vma if the target process
- * is dying while a transaction is being initiated.
- * Returning the old value is ok in this case and
- * the transaction will fail.
- */
- return alloc->user_buffer_offset;
-}
+unsigned long
+binder_alloc_copy_user_to_buffer(struct binder_alloc *alloc,
+ struct binder_buffer *buffer,
+ binder_size_t buffer_offset,
+ const void __user *from,
+ size_t bytes);
+
+void binder_alloc_copy_to_buffer(struct binder_alloc *alloc,
+ struct binder_buffer *buffer,
+ binder_size_t buffer_offset,
+ void *src,
+ size_t bytes);
+
+void binder_alloc_copy_from_buffer(struct binder_alloc *alloc,
+ void *dest,
+ struct binder_buffer *buffer,
+ binder_size_t buffer_offset,
+ size_t bytes);
#endif /* _LINUX_BINDER_ALLOC_H */
diff --git a/drivers/android/binder_alloc_selftest.c b/drivers/android/binder_alloc_selftest.c
index 8bd7bce..c839c49 100644
--- a/drivers/android/binder_alloc_selftest.c
+++ b/drivers/android/binder_alloc_selftest.c
@@ -102,11 +102,12 @@ static bool check_buffer_pages_allocated(struct binder_alloc *alloc,
struct binder_buffer *buffer,
size_t size)
{
- void *page_addr, *end;
+ void __user *page_addr;
+ void __user *end;
int page_index;
- end = (void *)PAGE_ALIGN((uintptr_t)buffer->data + size);
- page_addr = buffer->data;
+ end = (void __user *)PAGE_ALIGN((uintptr_t)buffer->user_data + size);
+ page_addr = buffer->user_data;
for (; page_addr < end; page_addr += PAGE_SIZE) {
page_index = (page_addr - alloc->buffer) / PAGE_SIZE;
if (!alloc->pages[page_index].page_ptr ||
@@ -127,7 +128,7 @@ static void binder_selftest_alloc_buf(struct binder_alloc *alloc,
int i;
for (i = 0; i < BUFFER_NUM; i++) {
- buffers[i] = binder_alloc_new_buf(alloc, sizes[i], 0, 0, 0);
+ buffers[i] = binder_alloc_new_buf(alloc, sizes[i], 0, 0, 0, 0);
if (IS_ERR(buffers[i]) ||
!check_buffer_pages_allocated(alloc, buffers[i],
sizes[i])) {
diff --git a/drivers/android/binder_internal.h b/drivers/android/binder_internal.h
new file mode 100644
index 0000000..8d0bffc
--- /dev/null
+++ b/drivers/android/binder_internal.h
@@ -0,0 +1,146 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef _LINUX_BINDER_INTERNAL_H
+#define _LINUX_BINDER_INTERNAL_H
+
+#include <linux/export.h>
+#include <linux/fs.h>
+#include <linux/list.h>
+#include <linux/miscdevice.h>
+#include <linux/mutex.h>
+#include <linux/refcount.h>
+#include <linux/stddef.h>
+#include <linux/types.h>
+#include <linux/uidgid.h>
+
+struct binder_context {
+ struct binder_node *binder_context_mgr_node;
+ struct mutex context_mgr_node_lock;
+ kuid_t binder_context_mgr_uid;
+ const char *name;
+};
+
+/**
+ * struct binder_device - information about a binder device node
+ * @hlist: list of binder devices (only used for devices requested via
+ * CONFIG_ANDROID_BINDER_DEVICES)
+ * @miscdev: information about a binder character device node
+ * @context: binder context information
+ * @binderfs_inode: This is the inode of the root dentry of the super block
+ * belonging to a binderfs mount.
+ */
+struct binder_device {
+ struct hlist_node hlist;
+ struct miscdevice miscdev;
+ struct binder_context context;
+ struct inode *binderfs_inode;
+ refcount_t ref;
+};
+
+/**
+ * binderfs_mount_opts - mount options for binderfs
+ * @max: maximum number of allocatable binderfs binder devices
+ * @stats_mode: enable binder stats in binderfs.
+ */
+struct binderfs_mount_opts {
+ int max;
+ int stats_mode;
+};
+
+/**
+ * binderfs_info - information about a binderfs mount
+ * @ipc_ns: The ipc namespace the binderfs mount belongs to.
+ * @control_dentry: This records the dentry of this binderfs mount
+ * binder-control device.
+ * @root_uid: uid that needs to be used when a new binder device is
+ * created.
+ * @root_gid: gid that needs to be used when a new binder device is
+ * created.
+ * @mount_opts: The mount options in use.
+ * @device_count: The current number of allocated binder devices.
+ * @proc_log_dir: Pointer to the directory dentry containing process-specific
+ * logs.
+ */
+struct binderfs_info {
+ struct ipc_namespace *ipc_ns;
+ struct dentry *control_dentry;
+ kuid_t root_uid;
+ kgid_t root_gid;
+ struct binderfs_mount_opts mount_opts;
+ int device_count;
+ struct dentry *proc_log_dir;
+};
+
+extern const struct file_operations binder_fops;
+
+extern char *binder_devices_param;
+
+#ifdef CONFIG_ANDROID_BINDERFS
+extern bool is_binderfs_device(const struct inode *inode);
+extern struct dentry *binderfs_create_file(struct dentry *dir, const char *name,
+ const struct file_operations *fops,
+ void *data);
+extern void binderfs_remove_file(struct dentry *dentry);
+#else
+static inline bool is_binderfs_device(const struct inode *inode)
+{
+ return false;
+}
+static inline struct dentry *binderfs_create_file(struct dentry *dir,
+ const char *name,
+ const struct file_operations *fops,
+ void *data)
+{
+ return NULL;
+}
+static inline void binderfs_remove_file(struct dentry *dentry) {}
+#endif
+
+#ifdef CONFIG_ANDROID_BINDERFS
+extern int __init init_binderfs(void);
+#else
+static inline int __init init_binderfs(void)
+{
+ return 0;
+}
+#endif
+
+int binder_stats_show(struct seq_file *m, void *unused);
+DEFINE_SHOW_ATTRIBUTE(binder_stats);
+
+int binder_state_show(struct seq_file *m, void *unused);
+DEFINE_SHOW_ATTRIBUTE(binder_state);
+
+int binder_transactions_show(struct seq_file *m, void *unused);
+DEFINE_SHOW_ATTRIBUTE(binder_transactions);
+
+int binder_transaction_log_show(struct seq_file *m, void *unused);
+DEFINE_SHOW_ATTRIBUTE(binder_transaction_log);
+
+struct binder_transaction_log_entry {
+ int debug_id;
+ int debug_id_done;
+ int call_type;
+ int from_proc;
+ int from_thread;
+ int target_handle;
+ int to_proc;
+ int to_thread;
+ int to_node;
+ int data_size;
+ int offsets_size;
+ int return_error_line;
+ uint32_t return_error;
+ uint32_t return_error_param;
+ const char *context_name;
+};
+
+struct binder_transaction_log {
+ atomic_t cur;
+ bool full;
+ struct binder_transaction_log_entry entry[32];
+};
+
+extern struct binder_transaction_log binder_transaction_log;
+extern struct binder_transaction_log binder_transaction_log_failed;
+#endif /* _LINUX_BINDER_INTERNAL_H */
diff --git a/drivers/android/binder_trace.h b/drivers/android/binder_trace.h
index 588eb3e..7df1e94 100644
--- a/drivers/android/binder_trace.h
+++ b/drivers/android/binder_trace.h
@@ -85,6 +85,30 @@ DEFINE_BINDER_FUNCTION_RETURN_EVENT(binder_ioctl_done);
DEFINE_BINDER_FUNCTION_RETURN_EVENT(binder_write_done);
DEFINE_BINDER_FUNCTION_RETURN_EVENT(binder_read_done);
+TRACE_EVENT(binder_set_priority,
+ TP_PROTO(int proc, int thread, unsigned int old_prio,
+ unsigned int desired_prio, unsigned int new_prio),
+ TP_ARGS(proc, thread, old_prio, new_prio, desired_prio),
+
+ TP_STRUCT__entry(
+ __field(int, proc)
+ __field(int, thread)
+ __field(unsigned int, old_prio)
+ __field(unsigned int, new_prio)
+ __field(unsigned int, desired_prio)
+ ),
+ TP_fast_assign(
+ __entry->proc = proc;
+ __entry->thread = thread;
+ __entry->old_prio = old_prio;
+ __entry->new_prio = new_prio;
+ __entry->desired_prio = desired_prio;
+ ),
+ TP_printk("proc=%d thread=%d old=%d => new=%d desired=%d",
+ __entry->proc, __entry->thread, __entry->old_prio,
+ __entry->new_prio, __entry->desired_prio)
+);
+
TRACE_EVENT(binder_wait_for_work,
TP_PROTO(bool proc_work, bool transaction_stack, bool thread_todo),
TP_ARGS(proc_work, transaction_stack, thread_todo),
@@ -275,7 +299,7 @@ DEFINE_EVENT(binder_buffer_class, binder_transaction_failed_buffer_release,
TRACE_EVENT(binder_update_page_range,
TP_PROTO(struct binder_alloc *alloc, bool allocate,
- void *start, void *end),
+ void __user *start, void __user *end),
TP_ARGS(alloc, allocate, start, end),
TP_STRUCT__entry(
__field(int, proc)
diff --git a/drivers/android/binderfs.c b/drivers/android/binderfs.c
new file mode 100644
index 0000000..f303106
--- /dev/null
+++ b/drivers/android/binderfs.c
@@ -0,0 +1,794 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#include <linux/compiler_types.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/fsnotify.h>
+#include <linux/gfp.h>
+#include <linux/idr.h>
+#include <linux/init.h>
+#include <linux/ipc_namespace.h>
+#include <linux/kdev_t.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/namei.h>
+#include <linux/magic.h>
+#include <linux/major.h>
+#include <linux/miscdevice.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/mount.h>
+#include <linux/parser.h>
+#include <linux/radix-tree.h>
+#include <linux/sched.h>
+#include <linux/seq_file.h>
+#include <linux/slab.h>
+#include <linux/spinlock_types.h>
+#include <linux/stddef.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/uaccess.h>
+#include <linux/user_namespace.h>
+#include <linux/xarray.h>
+#include <uapi/asm-generic/errno-base.h>
+#include <uapi/linux/android/binder.h>
+#include <uapi/linux/android/binderfs.h>
+
+#include "binder_internal.h"
+
+#define FIRST_INODE 1
+#define SECOND_INODE 2
+#define INODE_OFFSET 3
+#define INTSTRLEN 21
+#define BINDERFS_MAX_MINOR (1U << MINORBITS)
+/* Ensure that the initial ipc namespace always has devices available. */
+#define BINDERFS_MAX_MINOR_CAPPED (BINDERFS_MAX_MINOR - 4)
+
+static dev_t binderfs_dev;
+static DEFINE_MUTEX(binderfs_minors_mutex);
+static DEFINE_IDA(binderfs_minors);
+
+enum {
+ Opt_max,
+ Opt_stats_mode,
+ Opt_err
+};
+
+enum binderfs_stats_mode {
+ STATS_NONE,
+ STATS_GLOBAL,
+};
+
+static const match_table_t tokens = {
+ { Opt_max, "max=%d" },
+ { Opt_stats_mode, "stats=%s" },
+ { Opt_err, NULL }
+};
+
+static inline struct binderfs_info *BINDERFS_I(const struct inode *inode)
+{
+ return inode->i_sb->s_fs_info;
+}
+
+bool is_binderfs_device(const struct inode *inode)
+{
+ if (inode->i_sb->s_magic == BINDERFS_SUPER_MAGIC)
+ return true;
+
+ return false;
+}
+
+/**
+ * binderfs_binder_device_create - allocate inode from super block of a
+ * binderfs mount
+ * @ref_inode: inode from wich the super block will be taken
+ * @userp: buffer to copy information about new device for userspace to
+ * @req: struct binderfs_device as copied from userspace
+ *
+ * This function allocates a new binder_device and reserves a new minor
+ * number for it.
+ * Minor numbers are limited and tracked globally in binderfs_minors. The
+ * function will stash a struct binder_device for the specific binder
+ * device in i_private of the inode.
+ * It will go on to allocate a new inode from the super block of the
+ * filesystem mount, stash a struct binder_device in its i_private field
+ * and attach a dentry to that inode.
+ *
+ * Return: 0 on success, negative errno on failure
+ */
+static int binderfs_binder_device_create(struct inode *ref_inode,
+ struct binderfs_device __user *userp,
+ struct binderfs_device *req)
+{
+ int minor, ret;
+ struct dentry *dentry, *root;
+ struct binder_device *device;
+ char *name = NULL;
+ size_t name_len;
+ struct inode *inode = NULL;
+ struct super_block *sb = ref_inode->i_sb;
+ struct binderfs_info *info = sb->s_fs_info;
+#if defined(CONFIG_IPC_NS)
+ bool use_reserve = (info->ipc_ns == &init_ipc_ns);
+#else
+ bool use_reserve = true;
+#endif
+
+ /* Reserve new minor number for the new device. */
+ mutex_lock(&binderfs_minors_mutex);
+ if (++info->device_count <= info->mount_opts.max)
+ minor = ida_alloc_max(&binderfs_minors,
+ use_reserve ? BINDERFS_MAX_MINOR :
+ BINDERFS_MAX_MINOR_CAPPED,
+ GFP_KERNEL);
+ else
+ minor = -ENOSPC;
+ if (minor < 0) {
+ --info->device_count;
+ mutex_unlock(&binderfs_minors_mutex);
+ return minor;
+ }
+ mutex_unlock(&binderfs_minors_mutex);
+
+ ret = -ENOMEM;
+ device = kzalloc(sizeof(*device), GFP_KERNEL);
+ if (!device)
+ goto err;
+
+ inode = new_inode(sb);
+ if (!inode)
+ goto err;
+
+ inode->i_ino = minor + INODE_OFFSET;
+ inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
+ init_special_inode(inode, S_IFCHR | 0600,
+ MKDEV(MAJOR(binderfs_dev), minor));
+ inode->i_fop = &binder_fops;
+ inode->i_uid = info->root_uid;
+ inode->i_gid = info->root_gid;
+
+ req->name[BINDERFS_MAX_NAME] = '\0'; /* NUL-terminate */
+ name_len = strlen(req->name);
+ /* Make sure to include terminating NUL byte */
+ name = kmemdup(req->name, name_len + 1, GFP_KERNEL);
+ if (!name)
+ goto err;
+
+ refcount_set(&device->ref, 1);
+ device->binderfs_inode = inode;
+ device->context.binder_context_mgr_uid = INVALID_UID;
+ device->context.name = name;
+ device->miscdev.name = name;
+ device->miscdev.minor = minor;
+ mutex_init(&device->context.context_mgr_node_lock);
+
+ req->major = MAJOR(binderfs_dev);
+ req->minor = minor;
+
+ if (userp && copy_to_user(userp, req, sizeof(*req))) {
+ ret = -EFAULT;
+ goto err;
+ }
+
+ root = sb->s_root;
+ inode_lock(d_inode(root));
+
+ /* look it up */
+ dentry = lookup_one_len(name, root, name_len);
+ if (IS_ERR(dentry)) {
+ inode_unlock(d_inode(root));
+ ret = PTR_ERR(dentry);
+ goto err;
+ }
+
+ if (d_really_is_positive(dentry)) {
+ /* already exists */
+ dput(dentry);
+ inode_unlock(d_inode(root));
+ ret = -EEXIST;
+ goto err;
+ }
+
+ inode->i_private = device;
+ d_instantiate(dentry, inode);
+ fsnotify_create(root->d_inode, dentry);
+ inode_unlock(d_inode(root));
+
+ return 0;
+
+err:
+ kfree(name);
+ kfree(device);
+ mutex_lock(&binderfs_minors_mutex);
+ --info->device_count;
+ ida_free(&binderfs_minors, minor);
+ mutex_unlock(&binderfs_minors_mutex);
+ iput(inode);
+
+ return ret;
+}
+
+/**
+ * binderfs_ctl_ioctl - handle binder device node allocation requests
+ *
+ * The request handler for the binder-control device. All requests operate on
+ * the binderfs mount the binder-control device resides in:
+ * - BINDER_CTL_ADD
+ * Allocate a new binder device.
+ *
+ * Return: 0 on success, negative errno on failure
+ */
+static long binder_ctl_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ int ret = -EINVAL;
+ struct inode *inode = file_inode(file);
+ struct binderfs_device __user *device = (struct binderfs_device __user *)arg;
+ struct binderfs_device device_req;
+
+ switch (cmd) {
+ case BINDER_CTL_ADD:
+ ret = copy_from_user(&device_req, device, sizeof(device_req));
+ if (ret) {
+ ret = -EFAULT;
+ break;
+ }
+
+ ret = binderfs_binder_device_create(inode, device, &device_req);
+ break;
+ default:
+ break;
+ }
+
+ return ret;
+}
+
+static void binderfs_evict_inode(struct inode *inode)
+{
+ struct binder_device *device = inode->i_private;
+ struct binderfs_info *info = BINDERFS_I(inode);
+
+ clear_inode(inode);
+
+ if (!S_ISCHR(inode->i_mode) || !device)
+ return;
+
+ mutex_lock(&binderfs_minors_mutex);
+ --info->device_count;
+ ida_free(&binderfs_minors, device->miscdev.minor);
+ mutex_unlock(&binderfs_minors_mutex);
+
+ if (refcount_dec_and_test(&device->ref)) {
+ kfree(device->context.name);
+ kfree(device);
+ }
+}
+
+/**
+ * binderfs_parse_mount_opts - parse binderfs mount options
+ * @data: options to set (can be NULL in which case defaults are used)
+ */
+static int binderfs_parse_mount_opts(char *data,
+ struct binderfs_mount_opts *opts)
+{
+ char *p, *stats;
+ opts->max = BINDERFS_MAX_MINOR;
+ opts->stats_mode = STATS_NONE;
+
+ while ((p = strsep(&data, ",")) != NULL) {
+ substring_t args[MAX_OPT_ARGS];
+ int token;
+ int max_devices;
+
+ if (!*p)
+ continue;
+
+ token = match_token(p, tokens, args);
+ switch (token) {
+ case Opt_max:
+ if (match_int(&args[0], &max_devices) ||
+ (max_devices < 0 ||
+ (max_devices > BINDERFS_MAX_MINOR)))
+ return -EINVAL;
+
+ opts->max = max_devices;
+ break;
+ case Opt_stats_mode:
+ if (!capable(CAP_SYS_ADMIN))
+ return -EINVAL;
+
+ stats = match_strdup(&args[0]);
+ if (!stats)
+ return -ENOMEM;
+
+ if (strcmp(stats, "global") != 0) {
+ kfree(stats);
+ return -EINVAL;
+ }
+
+ opts->stats_mode = STATS_GLOBAL;
+ kfree(stats);
+ break;
+ default:
+ pr_err("Invalid mount options\n");
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+static int binderfs_remount(struct super_block *sb, int *flags, char *data)
+{
+ int prev_stats_mode, ret;
+ struct binderfs_info *info = sb->s_fs_info;
+
+ prev_stats_mode = info->mount_opts.stats_mode;
+ ret = binderfs_parse_mount_opts(data, &info->mount_opts);
+ if (ret)
+ return ret;
+
+ if (prev_stats_mode != info->mount_opts.stats_mode) {
+ pr_err("Binderfs stats mode cannot be changed during a remount\n");
+ info->mount_opts.stats_mode = prev_stats_mode;
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int binderfs_show_mount_opts(struct seq_file *seq, struct dentry *root)
+{
+ struct binderfs_info *info;
+
+ info = root->d_sb->s_fs_info;
+ if (info->mount_opts.max <= BINDERFS_MAX_MINOR)
+ seq_printf(seq, ",max=%d", info->mount_opts.max);
+ if (info->mount_opts.stats_mode == STATS_GLOBAL)
+ seq_printf(seq, ",stats=global");
+
+ return 0;
+}
+
+static const struct super_operations binderfs_super_ops = {
+ .evict_inode = binderfs_evict_inode,
+ .remount_fs = binderfs_remount,
+ .show_options = binderfs_show_mount_opts,
+ .statfs = simple_statfs,
+};
+
+static inline bool is_binderfs_control_device(const struct dentry *dentry)
+{
+ struct binderfs_info *info = dentry->d_sb->s_fs_info;
+ return info->control_dentry == dentry;
+}
+
+static int binderfs_rename(struct inode *old_dir, struct dentry *old_dentry,
+ struct inode *new_dir, struct dentry *new_dentry,
+ unsigned int flags)
+{
+ if (is_binderfs_control_device(old_dentry) ||
+ is_binderfs_control_device(new_dentry))
+ return -EPERM;
+
+ return simple_rename(old_dir, old_dentry, new_dir, new_dentry, flags);
+}
+
+static int binderfs_unlink(struct inode *dir, struct dentry *dentry)
+{
+ if (is_binderfs_control_device(dentry))
+ return -EPERM;
+
+ return simple_unlink(dir, dentry);
+}
+
+static const struct file_operations binder_ctl_fops = {
+ .owner = THIS_MODULE,
+ .open = nonseekable_open,
+ .unlocked_ioctl = binder_ctl_ioctl,
+ .compat_ioctl = binder_ctl_ioctl,
+ .llseek = noop_llseek,
+};
+
+/**
+ * binderfs_binder_ctl_create - create a new binder-control device
+ * @sb: super block of the binderfs mount
+ *
+ * This function creates a new binder-control device node in the binderfs mount
+ * referred to by @sb.
+ *
+ * Return: 0 on success, negative errno on failure
+ */
+static int binderfs_binder_ctl_create(struct super_block *sb)
+{
+ int minor, ret;
+ struct dentry *dentry;
+ struct binder_device *device;
+ struct inode *inode = NULL;
+ struct dentry *root = sb->s_root;
+ struct binderfs_info *info = sb->s_fs_info;
+#if defined(CONFIG_IPC_NS)
+ bool use_reserve = (info->ipc_ns == &init_ipc_ns);
+#else
+ bool use_reserve = true;
+#endif
+
+ device = kzalloc(sizeof(*device), GFP_KERNEL);
+ if (!device)
+ return -ENOMEM;
+
+ /* If we have already created a binder-control node, return. */
+ if (info->control_dentry) {
+ ret = 0;
+ goto out;
+ }
+
+ ret = -ENOMEM;
+ inode = new_inode(sb);
+ if (!inode)
+ goto out;
+
+ /* Reserve a new minor number for the new device. */
+ mutex_lock(&binderfs_minors_mutex);
+ minor = ida_alloc_max(&binderfs_minors,
+ use_reserve ? BINDERFS_MAX_MINOR :
+ BINDERFS_MAX_MINOR_CAPPED,
+ GFP_KERNEL);
+ mutex_unlock(&binderfs_minors_mutex);
+ if (minor < 0) {
+ ret = minor;
+ goto out;
+ }
+
+ inode->i_ino = SECOND_INODE;
+ inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
+ init_special_inode(inode, S_IFCHR | 0600,
+ MKDEV(MAJOR(binderfs_dev), minor));
+ inode->i_fop = &binder_ctl_fops;
+ inode->i_uid = info->root_uid;
+ inode->i_gid = info->root_gid;
+
+ refcount_set(&device->ref, 1);
+ device->binderfs_inode = inode;
+ device->miscdev.minor = minor;
+
+ dentry = d_alloc_name(root, "binder-control");
+ if (!dentry)
+ goto out;
+
+ inode->i_private = device;
+ info->control_dentry = dentry;
+ d_add(dentry, inode);
+
+ return 0;
+
+out:
+ kfree(device);
+ iput(inode);
+
+ return ret;
+}
+
+static const struct inode_operations binderfs_dir_inode_operations = {
+ .lookup = simple_lookup,
+ .rename = binderfs_rename,
+ .unlink = binderfs_unlink,
+};
+
+static struct inode *binderfs_make_inode(struct super_block *sb, int mode)
+{
+ struct inode *ret;
+
+ ret = new_inode(sb);
+ if (ret) {
+ ret->i_ino = iunique(sb, BINDERFS_MAX_MINOR + INODE_OFFSET);
+ ret->i_mode = mode;
+ ret->i_atime = ret->i_mtime = ret->i_ctime = current_time(ret);
+ }
+ return ret;
+}
+
+static struct dentry *binderfs_create_dentry(struct dentry *parent,
+ const char *name)
+{
+ struct dentry *dentry;
+
+ dentry = lookup_one_len(name, parent, strlen(name));
+ if (IS_ERR(dentry))
+ return dentry;
+
+ /* Return error if the file/dir already exists. */
+ if (d_really_is_positive(dentry)) {
+ dput(dentry);
+ return ERR_PTR(-EEXIST);
+ }
+
+ return dentry;
+}
+
+void binderfs_remove_file(struct dentry *dentry)
+{
+ struct inode *parent_inode;
+
+ parent_inode = d_inode(dentry->d_parent);
+ inode_lock(parent_inode);
+ if (simple_positive(dentry)) {
+ dget(dentry);
+ simple_unlink(parent_inode, dentry);
+ d_delete(dentry);
+ dput(dentry);
+ }
+ inode_unlock(parent_inode);
+}
+
+struct dentry *binderfs_create_file(struct dentry *parent, const char *name,
+ const struct file_operations *fops,
+ void *data)
+{
+ struct dentry *dentry;
+ struct inode *new_inode, *parent_inode;
+ struct super_block *sb;
+
+ parent_inode = d_inode(parent);
+ inode_lock(parent_inode);
+
+ dentry = binderfs_create_dentry(parent, name);
+ if (IS_ERR(dentry))
+ goto out;
+
+ sb = parent_inode->i_sb;
+ new_inode = binderfs_make_inode(sb, S_IFREG | 0444);
+ if (!new_inode) {
+ dput(dentry);
+ dentry = ERR_PTR(-ENOMEM);
+ goto out;
+ }
+
+ new_inode->i_fop = fops;
+ new_inode->i_private = data;
+ d_instantiate(dentry, new_inode);
+ fsnotify_create(parent_inode, dentry);
+
+out:
+ inode_unlock(parent_inode);
+ return dentry;
+}
+
+static struct dentry *binderfs_create_dir(struct dentry *parent,
+ const char *name)
+{
+ struct dentry *dentry;
+ struct inode *new_inode, *parent_inode;
+ struct super_block *sb;
+
+ parent_inode = d_inode(parent);
+ inode_lock(parent_inode);
+
+ dentry = binderfs_create_dentry(parent, name);
+ if (IS_ERR(dentry))
+ goto out;
+
+ sb = parent_inode->i_sb;
+ new_inode = binderfs_make_inode(sb, S_IFDIR | 0755);
+ if (!new_inode) {
+ dput(dentry);
+ dentry = ERR_PTR(-ENOMEM);
+ goto out;
+ }
+
+ new_inode->i_fop = &simple_dir_operations;
+ new_inode->i_op = &simple_dir_inode_operations;
+
+ set_nlink(new_inode, 2);
+ d_instantiate(dentry, new_inode);
+ inc_nlink(parent_inode);
+ fsnotify_mkdir(parent_inode, dentry);
+
+out:
+ inode_unlock(parent_inode);
+ return dentry;
+}
+
+static int init_binder_logs(struct super_block *sb)
+{
+ struct dentry *binder_logs_root_dir, *dentry, *proc_log_dir;
+ struct binderfs_info *info;
+ int ret = 0;
+
+ binder_logs_root_dir = binderfs_create_dir(sb->s_root,
+ "binder_logs");
+ if (IS_ERR(binder_logs_root_dir)) {
+ ret = PTR_ERR(binder_logs_root_dir);
+ goto out;
+ }
+
+ dentry = binderfs_create_file(binder_logs_root_dir, "stats",
+ &binder_stats_fops, NULL);
+ if (IS_ERR(dentry)) {
+ ret = PTR_ERR(dentry);
+ goto out;
+ }
+
+ dentry = binderfs_create_file(binder_logs_root_dir, "state",
+ &binder_state_fops, NULL);
+ if (IS_ERR(dentry)) {
+ ret = PTR_ERR(dentry);
+ goto out;
+ }
+
+ dentry = binderfs_create_file(binder_logs_root_dir, "transactions",
+ &binder_transactions_fops, NULL);
+ if (IS_ERR(dentry)) {
+ ret = PTR_ERR(dentry);
+ goto out;
+ }
+
+ dentry = binderfs_create_file(binder_logs_root_dir,
+ "transaction_log",
+ &binder_transaction_log_fops,
+ &binder_transaction_log);
+ if (IS_ERR(dentry)) {
+ ret = PTR_ERR(dentry);
+ goto out;
+ }
+
+ dentry = binderfs_create_file(binder_logs_root_dir,
+ "failed_transaction_log",
+ &binder_transaction_log_fops,
+ &binder_transaction_log_failed);
+ if (IS_ERR(dentry)) {
+ ret = PTR_ERR(dentry);
+ goto out;
+ }
+
+ proc_log_dir = binderfs_create_dir(binder_logs_root_dir, "proc");
+ if (IS_ERR(proc_log_dir)) {
+ ret = PTR_ERR(proc_log_dir);
+ goto out;
+ }
+ info = sb->s_fs_info;
+ info->proc_log_dir = proc_log_dir;
+
+out:
+ return ret;
+}
+
+static int binderfs_fill_super(struct super_block *sb, void *data, int silent)
+{
+ int ret;
+ struct binderfs_info *info;
+ struct inode *inode = NULL;
+ struct binderfs_device device_info = { 0 };
+ const char *name;
+ size_t len;
+
+ sb->s_blocksize = PAGE_SIZE;
+ sb->s_blocksize_bits = PAGE_SHIFT;
+
+ /*
+ * The binderfs filesystem can be mounted by userns root in a
+ * non-initial userns. By default such mounts have the SB_I_NODEV flag
+ * set in s_iflags to prevent security issues where userns root can
+ * just create random device nodes via mknod() since it owns the
+ * filesystem mount. But binderfs does not allow to create any files
+ * including devices nodes. The only way to create binder devices nodes
+ * is through the binder-control device which userns root is explicitly
+ * allowed to do. So removing the SB_I_NODEV flag from s_iflags is both
+ * necessary and safe.
+ */
+ sb->s_iflags &= ~SB_I_NODEV;
+ sb->s_iflags |= SB_I_NOEXEC;
+ sb->s_magic = BINDERFS_SUPER_MAGIC;
+ sb->s_op = &binderfs_super_ops;
+ sb->s_time_gran = 1;
+
+ sb->s_fs_info = kzalloc(sizeof(struct binderfs_info), GFP_KERNEL);
+ if (!sb->s_fs_info)
+ return -ENOMEM;
+ info = sb->s_fs_info;
+
+ info->ipc_ns = get_ipc_ns(current->nsproxy->ipc_ns);
+
+ ret = binderfs_parse_mount_opts(data, &info->mount_opts);
+ if (ret)
+ return ret;
+
+ info->root_gid = make_kgid(sb->s_user_ns, 0);
+ if (!gid_valid(info->root_gid))
+ info->root_gid = GLOBAL_ROOT_GID;
+ info->root_uid = make_kuid(sb->s_user_ns, 0);
+ if (!uid_valid(info->root_uid))
+ info->root_uid = GLOBAL_ROOT_UID;
+
+ inode = new_inode(sb);
+ if (!inode)
+ return -ENOMEM;
+
+ inode->i_ino = FIRST_INODE;
+ inode->i_fop = &simple_dir_operations;
+ inode->i_mode = S_IFDIR | 0755;
+ inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
+ inode->i_op = &binderfs_dir_inode_operations;
+ set_nlink(inode, 2);
+
+ sb->s_root = d_make_root(inode);
+ if (!sb->s_root)
+ return -ENOMEM;
+
+ ret = binderfs_binder_ctl_create(sb);
+ if (ret)
+ return ret;
+
+ name = binder_devices_param;
+ for (len = strcspn(name, ","); len > 0; len = strcspn(name, ",")) {
+ strscpy(device_info.name, name, len + 1);
+ ret = binderfs_binder_device_create(inode, NULL, &device_info);
+ if (ret)
+ return ret;
+ name += len;
+ if (*name == ',')
+ name++;
+ }
+
+ if (info->mount_opts.stats_mode == STATS_GLOBAL)
+ return init_binder_logs(sb);
+
+ return 0;
+}
+
+static struct dentry *binderfs_mount(struct file_system_type *fs_type,
+ int flags, const char *dev_name,
+ void *data)
+{
+ return mount_nodev(fs_type, flags, data, binderfs_fill_super);
+}
+
+static void binderfs_kill_super(struct super_block *sb)
+{
+ struct binderfs_info *info = sb->s_fs_info;
+
+ kill_litter_super(sb);
+
+ if (info && info->ipc_ns)
+ put_ipc_ns(info->ipc_ns);
+
+ kfree(info);
+}
+
+static struct file_system_type binder_fs_type = {
+ .name = "binder",
+ .mount = binderfs_mount,
+ .kill_sb = binderfs_kill_super,
+ .fs_flags = FS_USERNS_MOUNT,
+};
+
+int __init init_binderfs(void)
+{
+ int ret;
+ const char *name;
+ size_t len;
+
+ /* Verify that the default binderfs device names are valid. */
+ name = binder_devices_param;
+ for (len = strcspn(name, ","); len > 0; len = strcspn(name, ",")) {
+ if (len > BINDERFS_MAX_NAME)
+ return -E2BIG;
+ name += len;
+ if (*name == ',')
+ name++;
+ }
+
+ /* Allocate new major number for binderfs. */
+ ret = alloc_chrdev_region(&binderfs_dev, 0, BINDERFS_MAX_MINOR,
+ "binder");
+ if (ret)
+ return ret;
+
+ ret = register_filesystem(&binder_fs_type);
+ if (ret) {
+ unregister_chrdev_region(binderfs_dev, BINDERFS_MAX_MINOR);
+ return ret;
+ }
+
+ return ret;
+}
diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
index 3e63a90..ae213ed 100644
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -174,7 +174,6 @@
config DMA_SHARED_BUFFER
bool
default n
- select ANON_INODES
select IRQ_WORK
help
This option enables the framework for buffer-sharing between
diff --git a/drivers/base/arch_topology.c b/drivers/base/arch_topology.c
index e7cb0c6..b5f61f2 100644
--- a/drivers/base/arch_topology.c
+++ b/drivers/base/arch_topology.c
@@ -15,8 +15,11 @@
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/sched/topology.h>
+#include <linux/cpuset.h>
DEFINE_PER_CPU(unsigned long, freq_scale) = SCHED_CAPACITY_SCALE;
+DEFINE_PER_CPU(unsigned long, max_cpu_freq);
+DEFINE_PER_CPU(unsigned long, max_freq_scale) = SCHED_CAPACITY_SCALE;
void arch_set_freq_scale(struct cpumask *cpus, unsigned long cur_freq,
unsigned long max_freq)
@@ -26,8 +29,29 @@ void arch_set_freq_scale(struct cpumask *cpus, unsigned long cur_freq,
scale = (cur_freq << SCHED_CAPACITY_SHIFT) / max_freq;
- for_each_cpu(i, cpus)
+ for_each_cpu(i, cpus) {
per_cpu(freq_scale, i) = scale;
+ per_cpu(max_cpu_freq, i) = max_freq;
+ }
+}
+
+void arch_set_max_freq_scale(struct cpumask *cpus,
+ unsigned long policy_max_freq)
+{
+ unsigned long scale, max_freq;
+ int cpu = cpumask_first(cpus);
+
+ if (cpu > nr_cpu_ids)
+ return;
+
+ max_freq = per_cpu(max_cpu_freq, cpu);
+ if (!max_freq)
+ return;
+
+ scale = (policy_max_freq << SCHED_CAPACITY_SHIFT) / max_freq;
+
+ for_each_cpu(cpu, cpus)
+ per_cpu(max_freq_scale, cpu) = scale;
}
static DEFINE_MUTEX(cpu_scale_mutex);
@@ -47,6 +71,9 @@ static ssize_t cpu_capacity_show(struct device *dev,
return sprintf(buf, "%lu\n", topology_get_cpu_scale(NULL, cpu->dev.id));
}
+static void update_topology_flags_workfn(struct work_struct *work);
+static DECLARE_WORK(update_topology_flags_work, update_topology_flags_workfn);
+
static ssize_t cpu_capacity_store(struct device *dev,
struct device_attribute *attr,
const char *buf,
@@ -72,6 +99,8 @@ static ssize_t cpu_capacity_store(struct device *dev,
topology_set_cpu_scale(i, new_capacity);
mutex_unlock(&cpu_scale_mutex);
+ schedule_work(&update_topology_flags_work);
+
return count;
}
@@ -96,6 +125,25 @@ static int register_cpu_capacity_sysctl(void)
}
subsys_initcall(register_cpu_capacity_sysctl);
+static int update_topology;
+
+int topology_update_cpu_topology(void)
+{
+ return update_topology;
+}
+
+/*
+ * Updating the sched_domains can't be done directly from cpufreq callbacks
+ * due to locking, so queue the work for later.
+ */
+static void update_topology_flags_workfn(struct work_struct *work)
+{
+ update_topology = 1;
+ rebuild_sched_domains();
+ pr_debug("sched_domain hierarchy rebuilt, flags updated\n");
+ update_topology = 0;
+}
+
static u32 capacity_scale;
static u32 *raw_capacity;
@@ -201,6 +249,7 @@ init_cpu_capacity_callback(struct notifier_block *nb,
if (cpumask_empty(cpus_to_visit)) {
topology_normalize_cpu_scale();
+ schedule_work(&update_topology_flags_work);
free_raw_capacity();
pr_debug("cpu_capacity: parsing done\n");
schedule_work(&parsing_done_work);
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 6e380ad..0795cd3 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -44,6 +44,12 @@ early_param("sysfs.deprecated", sysfs_deprecated_setup);
#endif
/* Device links support. */
+static LIST_HEAD(wait_for_suppliers);
+static DEFINE_MUTEX(wfs_lock);
+static LIST_HEAD(deferred_sync);
+static unsigned int defer_sync_state_count = 1;
+static unsigned int defer_fw_devlink_count;
+static DEFINE_MUTEX(defer_fw_devlink_lock);
#ifdef CONFIG_SRCU
static DEFINE_MUTEX(device_links_lock);
@@ -129,6 +135,9 @@ static int device_is_dependent(struct device *dev, void *target)
return ret;
list_for_each_entry(link, &dev->links.consumers, s_node) {
+ if (link->flags == (DL_FLAG_SYNC_STATE_ONLY | DL_FLAG_MANAGED))
+ continue;
+
if (link->consumer == target)
return 1;
@@ -198,8 +207,11 @@ static int device_reorder_to_tail(struct device *dev, void *not_used)
device_pm_move_last(dev);
device_for_each_child(dev, NULL, device_reorder_to_tail);
- list_for_each_entry(link, &dev->links.consumers, s_node)
+ list_for_each_entry(link, &dev->links.consumers, s_node) {
+ if (link->flags == (DL_FLAG_SYNC_STATE_ONLY | DL_FLAG_MANAGED))
+ continue;
device_reorder_to_tail(link->consumer, NULL);
+ }
return 0;
}
@@ -226,7 +238,8 @@ void device_pm_move_to_tail(struct device *dev)
#define DL_MANAGED_LINK_FLAGS (DL_FLAG_AUTOREMOVE_CONSUMER | \
DL_FLAG_AUTOREMOVE_SUPPLIER | \
- DL_FLAG_AUTOPROBE_CONSUMER)
+ DL_FLAG_AUTOPROBE_CONSUMER | \
+ DL_FLAG_SYNC_STATE_ONLY)
#define DL_ADD_VALID_FLAGS (DL_MANAGED_LINK_FLAGS | DL_FLAG_STATELESS | \
DL_FLAG_PM_RUNTIME | DL_FLAG_RPM_ACTIVE)
@@ -294,6 +307,8 @@ struct device_link *device_link_add(struct device *consumer,
if (!consumer || !supplier || flags & ~DL_ADD_VALID_FLAGS ||
(flags & DL_FLAG_STATELESS && flags & DL_MANAGED_LINK_FLAGS) ||
+ (flags & DL_FLAG_SYNC_STATE_ONLY &&
+ flags != DL_FLAG_SYNC_STATE_ONLY) ||
(flags & DL_FLAG_AUTOPROBE_CONSUMER &&
flags & (DL_FLAG_AUTOREMOVE_CONSUMER |
DL_FLAG_AUTOREMOVE_SUPPLIER)))
@@ -314,11 +329,14 @@ struct device_link *device_link_add(struct device *consumer,
/*
* If the supplier has not been fully registered yet or there is a
- * reverse dependency between the consumer and the supplier already in
- * the graph, return NULL.
+ * reverse (non-SYNC_STATE_ONLY) dependency between the consumer and
+ * the supplier already in the graph, return NULL. If the link is a
+ * SYNC_STATE_ONLY link, we don't check for reverse dependencies
+ * because it only affects sync_state() callbacks.
*/
if (!device_pm_initialized(supplier)
- || device_is_dependent(consumer, supplier)) {
+ || (!(flags & DL_FLAG_SYNC_STATE_ONLY) &&
+ device_is_dependent(consumer, supplier))) {
link = NULL;
goto out;
}
@@ -345,9 +363,15 @@ struct device_link *device_link_add(struct device *consumer,
}
if (flags & DL_FLAG_STATELESS) {
- link->flags |= DL_FLAG_STATELESS;
kref_get(&link->kref);
- goto out;
+ if (link->flags & DL_FLAG_SYNC_STATE_ONLY &&
+ !(link->flags & DL_FLAG_STATELESS)) {
+ link->flags |= DL_FLAG_STATELESS;
+ goto reorder;
+ } else {
+ link->flags |= DL_FLAG_STATELESS;
+ goto out;
+ }
}
/*
@@ -369,6 +393,12 @@ struct device_link *device_link_add(struct device *consumer,
link->flags |= DL_FLAG_MANAGED;
device_link_init_status(link, consumer, supplier);
}
+ if (link->flags & DL_FLAG_SYNC_STATE_ONLY &&
+ !(flags & DL_FLAG_SYNC_STATE_ONLY)) {
+ link->flags &= ~DL_FLAG_SYNC_STATE_ONLY;
+ goto reorder;
+ }
+
goto out;
}
@@ -408,6 +438,17 @@ struct device_link *device_link_add(struct device *consumer,
flags & DL_FLAG_PM_RUNTIME)
pm_runtime_resume(supplier);
+ list_add_tail_rcu(&link->s_node, &supplier->links.consumers);
+ list_add_tail_rcu(&link->c_node, &consumer->links.suppliers);
+
+ if (flags & DL_FLAG_SYNC_STATE_ONLY) {
+ dev_dbg(consumer,
+ "Linked as a sync state only consumer to %s\n",
+ dev_name(supplier));
+ goto out;
+ }
+
+reorder:
/*
* Move the consumer and all of the devices depending on it to the end
* of dpm_list and the devices_kset list.
@@ -417,12 +458,9 @@ struct device_link *device_link_add(struct device *consumer,
*/
device_reorder_to_tail(consumer, NULL);
- list_add_tail_rcu(&link->s_node, &supplier->links.consumers);
- list_add_tail_rcu(&link->c_node, &consumer->links.suppliers);
-
dev_info(consumer, "Linked as a consumer to %s\n", dev_name(supplier));
- out:
+out:
device_pm_unlock();
device_links_write_unlock();
@@ -433,6 +471,74 @@ struct device_link *device_link_add(struct device *consumer,
}
EXPORT_SYMBOL_GPL(device_link_add);
+/**
+ * device_link_wait_for_supplier - Add device to wait_for_suppliers list
+ * @consumer: Consumer device
+ *
+ * Marks the @consumer device as waiting for suppliers to become available by
+ * adding it to the wait_for_suppliers list. The consumer device will never be
+ * probed until it's removed from the wait_for_suppliers list.
+ *
+ * The caller is responsible for adding the links to the supplier devices once
+ * they are available and removing the @consumer device from the
+ * wait_for_suppliers list once links to all the suppliers have been created.
+ *
+ * This function is NOT meant to be called from the probe function of the
+ * consumer but rather from code that creates/adds the consumer device.
+ */
+static void device_link_wait_for_supplier(struct device *consumer,
+ bool need_for_probe)
+{
+ mutex_lock(&wfs_lock);
+ list_add_tail(&consumer->links.needs_suppliers, &wait_for_suppliers);
+ consumer->links.need_for_probe = need_for_probe;
+ mutex_unlock(&wfs_lock);
+}
+
+static void device_link_wait_for_mandatory_supplier(struct device *consumer)
+{
+ device_link_wait_for_supplier(consumer, true);
+}
+
+static void device_link_wait_for_optional_supplier(struct device *consumer)
+{
+ device_link_wait_for_supplier(consumer, false);
+}
+
+/**
+ * device_link_add_missing_supplier_links - Add links from consumer devices to
+ * supplier devices, leaving any
+ * consumer with inactive suppliers on
+ * the wait_for_suppliers list
+ *
+ * Loops through all consumers waiting on suppliers and tries to add all their
+ * supplier links. If that succeeds, the consumer device is removed from
+ * wait_for_suppliers list. Otherwise, they are left in the wait_for_suppliers
+ * list. Devices left on the wait_for_suppliers list will not be probed.
+ *
+ * The fwnode add_links callback is expected to return 0 if it has found and
+ * added all the supplier links for the consumer device. It should return an
+ * error if it isn't able to do so.
+ *
+ * The caller of device_link_wait_for_supplier() is expected to call this once
+ * it's aware of potential suppliers becoming available.
+ */
+static void device_link_add_missing_supplier_links(void)
+{
+ struct device *dev, *tmp;
+
+ mutex_lock(&wfs_lock);
+ list_for_each_entry_safe(dev, tmp, &wait_for_suppliers,
+ links.needs_suppliers) {
+ int ret = fwnode_call_int_op(dev->fwnode, add_links, dev);
+ if (!ret)
+ list_del_init(&dev->links.needs_suppliers);
+ else if (ret != -ENODEV)
+ dev->links.need_for_probe = false;
+ }
+ mutex_unlock(&wfs_lock);
+}
+
static void device_link_free(struct device_link *link)
{
while (refcount_dec_not_one(&link->rpm_active))
@@ -541,9 +647,17 @@ static void device_links_missing_supplier(struct device *dev)
{
struct device_link *link;
- list_for_each_entry(link, &dev->links.suppliers, c_node)
- if (link->status == DL_STATE_CONSUMER_PROBE)
+ list_for_each_entry(link, &dev->links.suppliers, c_node) {
+ if (link->status != DL_STATE_CONSUMER_PROBE)
+ continue;
+
+ if (link->supplier->links.status == DL_DEV_DRIVER_BOUND) {
WRITE_ONCE(link->status, DL_STATE_AVAILABLE);
+ } else {
+ WARN_ON(!(link->flags & DL_FLAG_SYNC_STATE_ONLY));
+ WRITE_ONCE(link->status, DL_STATE_DORMANT);
+ }
+ }
}
/**
@@ -567,13 +681,26 @@ int device_links_check_suppliers(struct device *dev)
struct device_link *link;
int ret = 0;
+ /*
+ * Device waiting for supplier to become available is not allowed to
+ * probe.
+ */
+ mutex_lock(&wfs_lock);
+ if (!list_empty(&dev->links.needs_suppliers) &&
+ dev->links.need_for_probe) {
+ mutex_unlock(&wfs_lock);
+ return -EPROBE_DEFER;
+ }
+ mutex_unlock(&wfs_lock);
+
device_links_write_lock();
list_for_each_entry(link, &dev->links.suppliers, c_node) {
if (!(link->flags & DL_FLAG_MANAGED))
continue;
- if (link->status != DL_STATE_AVAILABLE) {
+ if (link->status != DL_STATE_AVAILABLE &&
+ !(link->flags & DL_FLAG_SYNC_STATE_ONLY)) {
device_links_missing_supplier(dev);
ret = -EPROBE_DEFER;
break;
@@ -587,6 +714,141 @@ int device_links_check_suppliers(struct device *dev)
}
/**
+ * __device_links_queue_sync_state - Queue a device for sync_state() callback
+ * @dev: Device to call sync_state() on
+ * @list: List head to queue the @dev on
+ *
+ * Queues a device for a sync_state() callback when the device links write lock
+ * isn't held. This allows the sync_state() execution flow to use device links
+ * APIs. The caller must ensure this function is called with
+ * device_links_write_lock() held.
+ *
+ * This function does a get_device() to make sure the device is not freed while
+ * on this list.
+ *
+ * So the caller must also ensure that device_links_flush_sync_list() is called
+ * as soon as the caller releases device_links_write_lock(). This is necessary
+ * to make sure the sync_state() is called in a timely fashion and the
+ * put_device() is called on this device.
+ */
+static void __device_links_queue_sync_state(struct device *dev,
+ struct list_head *list)
+{
+ struct device_link *link;
+
+ if (dev->state_synced)
+ return;
+
+ list_for_each_entry(link, &dev->links.consumers, s_node) {
+ if (!(link->flags & DL_FLAG_MANAGED))
+ continue;
+ if (link->status != DL_STATE_ACTIVE)
+ return;
+ }
+
+ /*
+ * Set the flag here to avoid adding the same device to a list more
+ * than once. This can happen if new consumers get added to the device
+ * and probed before the list is flushed.
+ */
+ dev->state_synced = true;
+
+ if (WARN_ON(!list_empty(&dev->links.defer_sync)))
+ return;
+
+ get_device(dev);
+ list_add_tail(&dev->links.defer_sync, list);
+}
+
+/**
+ * device_links_flush_sync_list - Call sync_state() on a list of devices
+ * @list: List of devices to call sync_state() on
+ * @dont_lock_dev: Device for which lock is already held by the caller
+ *
+ * Calls sync_state() on all the devices that have been queued for it. This
+ * function is used in conjunction with __device_links_queue_sync_state(). The
+ * @dont_lock_dev parameter is useful when this function is called from a
+ * context where a device lock is already held.
+ */
+static void device_links_flush_sync_list(struct list_head *list,
+ struct device *dont_lock_dev)
+{
+ struct device *dev, *tmp;
+
+ list_for_each_entry_safe(dev, tmp, list, links.defer_sync) {
+ list_del_init(&dev->links.defer_sync);
+
+ if (dev != dont_lock_dev)
+ device_lock(dev);
+
+ if (dev->bus->sync_state)
+ dev->bus->sync_state(dev);
+ else if (dev->driver && dev->driver->sync_state)
+ dev->driver->sync_state(dev);
+
+ if (dev != dont_lock_dev)
+ device_unlock(dev);
+
+ put_device(dev);
+ }
+}
+
+void device_links_supplier_sync_state_pause(void)
+{
+ device_links_write_lock();
+ defer_sync_state_count++;
+ device_links_write_unlock();
+}
+
+void device_links_supplier_sync_state_resume(void)
+{
+ struct device *dev, *tmp;
+ LIST_HEAD(sync_list);
+
+ device_links_write_lock();
+ if (!defer_sync_state_count) {
+ WARN(true, "Unmatched sync_state pause/resume!");
+ goto out;
+ }
+ defer_sync_state_count--;
+ if (defer_sync_state_count)
+ goto out;
+
+ list_for_each_entry_safe(dev, tmp, &deferred_sync, links.defer_sync) {
+ /*
+ * Delete from deferred_sync list before queuing it to
+ * sync_list because defer_sync is used for both lists.
+ */
+ list_del_init(&dev->links.defer_sync);
+ __device_links_queue_sync_state(dev, &sync_list);
+ }
+out:
+ device_links_write_unlock();
+
+ device_links_flush_sync_list(&sync_list, NULL);
+}
+
+static int sync_state_resume_initcall(void)
+{
+ device_links_supplier_sync_state_resume();
+ return 0;
+}
+late_initcall(sync_state_resume_initcall);
+
+static void __device_links_supplier_defer_sync(struct device *sup)
+{
+ if (list_empty(&sup->links.defer_sync))
+ list_add_tail(&sup->links.defer_sync, &deferred_sync);
+}
+
+static void device_link_drop_managed(struct device_link *link)
+{
+ link->flags &= ~DL_FLAG_MANAGED;
+ WRITE_ONCE(link->status, DL_STATE_NONE);
+ kref_put(&link->kref, __device_link_del);
+}
+
+/**
* device_links_driver_bound - Update device links after probing its driver.
* @dev: Device to update the links for.
*
@@ -599,7 +861,17 @@ int device_links_check_suppliers(struct device *dev)
*/
void device_links_driver_bound(struct device *dev)
{
- struct device_link *link;
+ struct device_link *link, *ln;
+ LIST_HEAD(sync_list);
+
+ /*
+ * If a device probes successfully, it's expected to have created all
+ * the device links it needs to or make new device links as it needs
+ * them. So, it no longer needs to wait on any suppliers.
+ */
+ mutex_lock(&wfs_lock);
+ list_del_init(&dev->links.needs_suppliers);
+ mutex_unlock(&wfs_lock);
device_links_write_lock();
@@ -624,24 +896,47 @@ void device_links_driver_bound(struct device *dev)
driver_deferred_probe_add(link->consumer);
}
- list_for_each_entry(link, &dev->links.suppliers, c_node) {
+ if (defer_sync_state_count)
+ __device_links_supplier_defer_sync(dev);
+ else
+ __device_links_queue_sync_state(dev, &sync_list);
+
+ list_for_each_entry_safe(link, ln, &dev->links.suppliers, c_node) {
+ struct device *supplier;
+
if (!(link->flags & DL_FLAG_MANAGED))
continue;
- WARN_ON(link->status != DL_STATE_CONSUMER_PROBE);
- WRITE_ONCE(link->status, DL_STATE_ACTIVE);
+ supplier = link->supplier;
+ if (link->flags & DL_FLAG_SYNC_STATE_ONLY) {
+ /*
+ * When DL_FLAG_SYNC_STATE_ONLY is set, it means no
+ * other DL_MANAGED_LINK_FLAGS have been set. So, it's
+ * save to drop the managed link completely.
+ */
+ device_link_drop_managed(link);
+ } else {
+ WARN_ON(link->status != DL_STATE_CONSUMER_PROBE);
+ WRITE_ONCE(link->status, DL_STATE_ACTIVE);
+ }
+
+ /*
+ * This needs to be done even for the deleted
+ * DL_FLAG_SYNC_STATE_ONLY device link in case it was the last
+ * device link that was preventing the supplier from getting a
+ * sync_state() call.
+ */
+ if (defer_sync_state_count)
+ __device_links_supplier_defer_sync(supplier);
+ else
+ __device_links_queue_sync_state(supplier, &sync_list);
}
dev->links.status = DL_DEV_DRIVER_BOUND;
device_links_write_unlock();
-}
-static void device_link_drop_managed(struct device_link *link)
-{
- link->flags &= ~DL_FLAG_MANAGED;
- WRITE_ONCE(link->status, DL_STATE_NONE);
- kref_put(&link->kref, __device_link_del);
+ device_links_flush_sync_list(&sync_list, dev);
}
/**
@@ -664,11 +959,21 @@ static void __device_links_no_driver(struct device *dev)
if (!(link->flags & DL_FLAG_MANAGED))
continue;
- if (link->flags & DL_FLAG_AUTOREMOVE_CONSUMER)
+ if (link->flags & DL_FLAG_AUTOREMOVE_CONSUMER) {
device_link_drop_managed(link);
- else if (link->status == DL_STATE_CONSUMER_PROBE ||
- link->status == DL_STATE_ACTIVE)
+ continue;
+ }
+
+ if (link->status != DL_STATE_CONSUMER_PROBE &&
+ link->status != DL_STATE_ACTIVE)
+ continue;
+
+ if (link->supplier->links.status == DL_DEV_DRIVER_BOUND) {
WRITE_ONCE(link->status, DL_STATE_AVAILABLE);
+ } else {
+ WARN_ON(!(link->flags & DL_FLAG_SYNC_STATE_ONLY));
+ WRITE_ONCE(link->status, DL_STATE_DORMANT);
+ }
}
dev->links.status = DL_DEV_NO_DRIVER;
@@ -746,6 +1051,7 @@ void device_links_driver_cleanup(struct device *dev)
WRITE_ONCE(link->status, DL_STATE_DORMANT);
}
+ list_del_init(&dev->links.defer_sync);
__device_links_no_driver(dev);
device_links_write_unlock();
@@ -815,7 +1121,8 @@ void device_links_unbind_consumers(struct device *dev)
list_for_each_entry(link, &dev->links.consumers, s_node) {
enum device_link_state status;
- if (!(link->flags & DL_FLAG_MANAGED))
+ if (!(link->flags & DL_FLAG_MANAGED) ||
+ link->flags & DL_FLAG_SYNC_STATE_ONLY)
continue;
status = link->status;
@@ -851,6 +1158,10 @@ static void device_links_purge(struct device *dev)
{
struct device_link *link, *ln;
+ mutex_lock(&wfs_lock);
+ list_del(&dev->links.needs_suppliers);
+ mutex_unlock(&wfs_lock);
+
/*
* Delete all of the remaining links from this device to any other
* devices (either consumers or suppliers).
@@ -871,6 +1182,114 @@ static void device_links_purge(struct device *dev)
device_links_write_unlock();
}
+static void fw_devlink_link_device(struct device *dev)
+{
+ int fw_ret;
+
+ mutex_lock(&defer_fw_devlink_lock);
+ if (!defer_fw_devlink_count)
+ device_link_add_missing_supplier_links();
+
+ /*
+ * The device's fwnode not having add_links() doesn't affect if other
+ * consumers can find this device as a supplier. So, this check is
+ * intentionally placed after device_link_add_missing_supplier_links().
+ */
+ if (!fwnode_has_op(dev->fwnode, add_links))
+ goto out;
+
+ /*
+ * If fw_devlink is being deferred, assume all devices have mandatory
+ * suppliers they need to link to later. Then, when the fw_devlink is
+ * resumed, all these devices will get a chance to try and link to any
+ * suppliers they have.
+ */
+ if (!defer_fw_devlink_count) {
+ fw_ret = fwnode_call_int_op(dev->fwnode, add_links, dev);
+ } else {
+ fw_ret = -ENODEV;
+ }
+
+ if (fw_ret == -ENODEV)
+ device_link_wait_for_mandatory_supplier(dev);
+ else if (fw_ret)
+ device_link_wait_for_optional_supplier(dev);
+
+out:
+ mutex_unlock(&defer_fw_devlink_lock);
+}
+
+/**
+ * fw_devlink_pause - Pause parsing of fwnode to create device links
+ *
+ * Calling this function defers any fwnode parsing to create device links until
+ * fw_devlink_resume() is called. Both these functions are ref counted and the
+ * caller needs to match the calls.
+ *
+ * While fw_devlink is paused:
+ * - Any device that is added won't have its fwnode parsed to create device
+ * links.
+ * - The probe of the device will also be deferred during this period.
+ * - Any devices that were already added, but waiting for suppliers won't be
+ * able to link to newly added devices.
+ *
+ * Once fw_devlink_resume():
+ * - All the fwnodes that was not parsed will be parsed.
+ * - All the devices that were deferred probing will be reattempted if they
+ * aren't waiting for any more suppliers.
+ *
+ * This pair of functions, is mainly meant to optimize the parsing of fwnodes
+ * when a lot of devices that need to link to each other are added in a short
+ * interval of time. For example, adding all the top level devices in a system.
+ *
+ * For example, if N devices are added and:
+ * - All the consumers are added before their suppliers
+ * - All the suppliers of the N devices are part of the N devices
+ *
+ * Then:
+ *
+ * - With the use of fw_devlink_pause() and fw_devlink_resume(), each device
+ * will only need one parsing of its fwnode because it is guaranteed to find
+ * all the supplier devices already registered and ready to link to. It won't
+ * have to do another pass later to find one or more suppliers it couldn't
+ * find in the first parse of the fwnode. So, we'll only need O(N) fwnode
+ * parses.
+ *
+ * - Without the use of fw_devlink_pause() and fw_devlink_resume(), we would
+ * end up doing O(N^2) parses of fwnodes because every device that's added is
+ * guaranteed to trigger a parse of the fwnode of every device added before
+ * it. This O(N^2) parse is made worse by the fact that when a fwnode of a
+ * device is parsed, all it descendant devices might need to have their
+ * fwnodes parsed too (even if the devices themselves aren't added).
+ */
+void fw_devlink_pause(void)
+{
+ mutex_lock(&defer_fw_devlink_lock);
+ defer_fw_devlink_count++;
+ mutex_unlock(&defer_fw_devlink_lock);
+}
+
+/** fw_devlink_resume - Resume parsing of fwnode to create device links
+ *
+ * This function is used in conjunction with fw_devlink_pause() and is ref
+ * counted. See documentation for fw_devlink_pause() for more details.
+ */
+void fw_devlink_resume(void)
+{
+ mutex_lock(&defer_fw_devlink_lock);
+ if (!defer_fw_devlink_count) {
+ WARN(true, "Unmatched fw_devlink pause/resume!");
+ goto out;
+ }
+
+ defer_fw_devlink_count--;
+ if (defer_fw_devlink_count)
+ goto out;
+
+ device_link_add_missing_supplier_links();
+out:
+ mutex_unlock(&defer_fw_devlink_lock);
+}
/* Device links support end. */
int (*platform_notify)(struct device *dev) = NULL;
@@ -1682,11 +2101,12 @@ void device_initialize(struct device *dev)
device_pm_init(dev);
set_dev_node(dev, -1);
#ifdef CONFIG_GENERIC_MSI_IRQ
- raw_spin_lock_init(&dev->msi_lock);
INIT_LIST_HEAD(&dev->msi_list);
#endif
INIT_LIST_HEAD(&dev->links.consumers);
INIT_LIST_HEAD(&dev->links.suppliers);
+ INIT_LIST_HEAD(&dev->links.needs_suppliers);
+ INIT_LIST_HEAD(&dev->links.defer_sync);
dev->links.status = DL_DEV_NO_DRIVER;
}
EXPORT_SYMBOL_GPL(device_initialize);
@@ -2167,6 +2587,24 @@ int device_add(struct device *dev)
BUS_NOTIFY_ADD_DEVICE, dev);
kobject_uevent(&dev->kobj, KOBJ_ADD);
+
+ /*
+ * Check if any of the other devices (consumers) have been waiting for
+ * this device (supplier) to be added so that they can create a device
+ * link to it.
+ *
+ * This needs to happen after device_pm_add() because device_link_add()
+ * requires the supplier be registered before it's called.
+ *
+ * But this also needs to happen before bus_probe_device() to make sure
+ * waiting consumers can link to it before the driver is bound to the
+ * device and the driver sync_state callback is called for this device.
+ */
+ if (dev->fwnode && !dev->fwnode->dev) {
+ dev->fwnode->dev = dev;
+ fw_devlink_link_device(dev);
+ }
+
bus_probe_device(dev);
if (parent)
klist_add_tail(&dev->p->knode_parent,
@@ -2309,6 +2747,9 @@ void device_del(struct device *dev)
kill_device(dev);
device_unlock(dev);
+ if (dev->fwnode && dev->fwnode->dev == dev)
+ dev->fwnode->dev = NULL;
+
/* Notify clients of device removal. This call must come
* before dpm_sysfs_remove().
*/
@@ -2652,6 +3093,7 @@ int device_online(struct device *dev)
return ret;
}
+EXPORT_SYMBOL_GPL(device_online);
struct root_device {
struct device dev;
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 1df0574..43e793f 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -427,6 +427,7 @@ __cpu_device_create(struct device *parent, void *drvdata,
dev->parent = parent;
dev->groups = groups;
dev->release = device_create_release;
+ device_set_pm_not_required(dev);
dev_set_drvdata(dev, drvdata);
retval = kobject_set_name_vargs(&dev->kobj, fmt, args);
diff --git a/drivers/base/firmware_loader/Kconfig b/drivers/base/firmware_loader/Kconfig
index eb15d97..e44d10c 100644
--- a/drivers/base/firmware_loader/Kconfig
+++ b/drivers/base/firmware_loader/Kconfig
@@ -150,5 +150,17 @@
If you are unsure about this, say N here.
+config FW_CACHE
+ bool "Enable firmware caching during suspend"
+ depends on PM_SLEEP
+ default y if PM_SLEEP
+ help
+ Because firmware caching generates uevent messages that are sent
+ over a netlink socket, it can prevent suspend on many platforms.
+ It is also not always useful, so on such platforms we have the
+ option.
+
+ If unsure, say Y.
+
endif # FW_LOADER
endmenu
diff --git a/drivers/base/firmware_loader/main.c b/drivers/base/firmware_loader/main.c
index 24410a0..911d8ec 100644
--- a/drivers/base/firmware_loader/main.c
+++ b/drivers/base/firmware_loader/main.c
@@ -50,7 +50,7 @@ struct firmware_cache {
struct list_head head;
int state;
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_FW_CACHE
/*
* Names of firmware images which have been cached successfully
* will be added into the below list so that device uncache
@@ -372,7 +372,7 @@ static void fw_set_page_data(struct fw_priv *fw_priv, struct firmware *fw)
(unsigned int)fw_priv->size);
}
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_FW_CACHE
static void fw_name_devm_release(struct device *dev, void *res)
{
struct fw_name_devm *fwn = res;
@@ -858,7 +858,7 @@ request_firmware_nowait(
}
EXPORT_SYMBOL(request_firmware_nowait);
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_FW_CACHE
static ASYNC_DOMAIN_EXCLUSIVE(fw_cache_domain);
/**
diff --git a/drivers/base/node.c b/drivers/base/node.c
index 503e2f9..d2f133f 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -67,8 +67,11 @@ static ssize_t node_read_meminfo(struct device *dev,
int nid = dev->id;
struct pglist_data *pgdat = NODE_DATA(nid);
struct sysinfo i;
+ unsigned long sreclaimable, sunreclaimable;
si_meminfo_node(&i, nid);
+ sreclaimable = node_page_state(pgdat, NR_SLAB_RECLAIMABLE);
+ sunreclaimable = node_page_state(pgdat, NR_SLAB_UNRECLAIMABLE);
n = sprintf(buf,
"Node %d MemTotal: %8lu kB\n"
"Node %d MemFree: %8lu kB\n"
@@ -114,10 +117,14 @@ static ssize_t node_read_meminfo(struct device *dev,
"Node %d AnonPages: %8lu kB\n"
"Node %d Shmem: %8lu kB\n"
"Node %d KernelStack: %8lu kB\n"
+#ifdef CONFIG_SHADOW_CALL_STACK
+ "Node %d ShadowCallStack:%8lu kB\n"
+#endif
"Node %d PageTables: %8lu kB\n"
"Node %d NFS_Unstable: %8lu kB\n"
"Node %d Bounce: %8lu kB\n"
"Node %d WritebackTmp: %8lu kB\n"
+ "Node %d KReclaimable: %8lu kB\n"
"Node %d Slab: %8lu kB\n"
"Node %d SReclaimable: %8lu kB\n"
"Node %d SUnreclaim: %8lu kB\n"
@@ -134,24 +141,28 @@ static ssize_t node_read_meminfo(struct device *dev,
nid, K(node_page_state(pgdat, NR_ANON_MAPPED)),
nid, K(i.sharedram),
nid, sum_zone_node_page_state(nid, NR_KERNEL_STACK_KB),
+#ifdef CONFIG_SHADOW_CALL_STACK
+ nid, sum_zone_node_page_state(nid, NR_KERNEL_SCS_BYTES) / 1024,
+#endif
nid, K(sum_zone_node_page_state(nid, NR_PAGETABLE)),
nid, K(node_page_state(pgdat, NR_UNSTABLE_NFS)),
nid, K(sum_zone_node_page_state(nid, NR_BOUNCE)),
nid, K(node_page_state(pgdat, NR_WRITEBACK_TEMP)),
- nid, K(node_page_state(pgdat, NR_SLAB_RECLAIMABLE) +
- node_page_state(pgdat, NR_SLAB_UNRECLAIMABLE)),
- nid, K(node_page_state(pgdat, NR_SLAB_RECLAIMABLE)),
+ nid, K(sreclaimable +
+ node_page_state(pgdat, NR_KERNEL_MISC_RECLAIMABLE)),
+ nid, K(sreclaimable + sunreclaimable),
+ nid, K(sreclaimable),
+ nid, K(sunreclaimable)
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
- nid, K(node_page_state(pgdat, NR_SLAB_UNRECLAIMABLE)),
+ ,
nid, K(node_page_state(pgdat, NR_ANON_THPS) *
HPAGE_PMD_NR),
nid, K(node_page_state(pgdat, NR_SHMEM_THPS) *
HPAGE_PMD_NR),
nid, K(node_page_state(pgdat, NR_SHMEM_PMDMAPPED) *
- HPAGE_PMD_NR));
-#else
- nid, K(node_page_state(pgdat, NR_SLAB_UNRECLAIMABLE)));
+ HPAGE_PMD_NR)
#endif
+ );
n += hugetlb_report_node_meminfo(nid, buf + n);
return n;
}
diff --git a/drivers/base/power/Makefile b/drivers/base/power/Makefile
index e1bb691..ec5bb19 100644
--- a/drivers/base/power/Makefile
+++ b/drivers/base/power/Makefile
@@ -1,6 +1,6 @@
# SPDX-License-Identifier: GPL-2.0
obj-$(CONFIG_PM) += sysfs.o generic_ops.o common.o qos.o runtime.o wakeirq.o
-obj-$(CONFIG_PM_SLEEP) += main.o wakeup.o
+obj-$(CONFIG_PM_SLEEP) += main.o wakeup.o wakeup_stats.o
obj-$(CONFIG_PM_TRACE_RTC) += trace.o
obj-$(CONFIG_PM_GENERIC_DOMAINS) += domain.o domain_governor.o
obj-$(CONFIG_HAVE_CLK) += clock_ops.o
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index da413b9..aa4908c 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -33,6 +33,7 @@
#include <linux/cpufreq.h>
#include <linux/cpuidle.h>
#include <linux/timer.h>
+#include <linux/wakeup_reason.h>
#include "../base.h"
#include "power.h"
@@ -123,6 +124,10 @@ void device_pm_unlock(void)
*/
void device_pm_add(struct device *dev)
{
+ /* Skip PM setup/initialization. */
+ if (device_pm_not_required(dev))
+ return;
+
pr_debug("PM: Adding info for %s:%s\n",
dev->bus ? dev->bus->name : "No Bus", dev_name(dev));
device_pm_check_callbacks(dev);
@@ -141,6 +146,9 @@ void device_pm_add(struct device *dev)
*/
void device_pm_remove(struct device *dev)
{
+ if (device_pm_not_required(dev))
+ return;
+
pr_debug("PM: Removing info for %s:%s\n",
dev->bus ? dev->bus->name : "No Bus", dev_name(dev));
complete_all(&dev->power.completion);
@@ -1355,6 +1363,8 @@ static int __device_suspend_noirq(struct device *dev, pm_message_t state, bool a
error = dpm_run_callback(callback, dev, state, info);
if (error) {
async_error = error;
+ log_suspend_abort_reason("Callback failed on %s in %pS returned %d",
+ dev_name(dev), callback, error);
goto Complete;
}
@@ -1569,6 +1579,8 @@ static int __device_suspend_late(struct device *dev, pm_message_t state, bool as
error = dpm_run_callback(callback, dev, state, info);
if (error) {
async_error = error;
+ log_suspend_abort_reason("Callback failed on %s in %pS returned %d",
+ dev_name(dev), callback, error);
goto Complete;
}
dpm_propagate_wakeup_to_parent(dev);
@@ -1839,6 +1851,9 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async)
dpm_propagate_wakeup_to_parent(dev);
dpm_clear_superiors_direct_complete(dev);
+ } else {
+ log_suspend_abort_reason("Callback failed on %s in %pS returned %d",
+ dev_name(dev), callback, error);
}
device_unlock(dev);
@@ -2053,6 +2068,9 @@ int dpm_prepare(pm_message_t state)
printk(KERN_INFO "PM: Device %s not prepared "
"for power transition: code %d\n",
dev_name(dev), error);
+ log_suspend_abort_reason("Device %s not prepared for power transition: code %d",
+ dev_name(dev), error);
+ dpm_save_failed_dev(dev_name(dev));
put_device(dev);
break;
}
diff --git a/drivers/base/power/power.h b/drivers/base/power/power.h
index c511def..24e1184 100644
--- a/drivers/base/power/power.h
+++ b/drivers/base/power/power.h
@@ -148,3 +148,21 @@ static inline void device_pm_init(struct device *dev)
device_pm_sleep_init(dev);
pm_runtime_init(dev);
}
+
+#ifdef CONFIG_PM_SLEEP
+
+/* drivers/base/power/wakeup_stats.c */
+extern int wakeup_source_sysfs_add(struct device *parent,
+ struct wakeup_source *ws);
+extern void wakeup_source_sysfs_remove(struct wakeup_source *ws);
+
+extern int pm_wakeup_source_sysfs_add(struct device *parent);
+
+#else /* !CONFIG_PM_SLEEP */
+
+static inline int pm_wakeup_source_sysfs_add(struct device *parent)
+{
+ return 0;
+}
+
+#endif /* CONFIG_PM_SLEEP */
diff --git a/drivers/base/power/qos.c b/drivers/base/power/qos.c
index 3382542..6571b8a 100644
--- a/drivers/base/power/qos.c
+++ b/drivers/base/power/qos.c
@@ -143,11 +143,13 @@ static int apply_constraint(struct dev_pm_qos_request *req,
value = 0;
ret = pm_qos_update_target(&qos->resume_latency,
- &req->data.pnode, action, value);
+ &req->data.pnode, action, value,
+ true);
break;
case DEV_PM_QOS_LATENCY_TOLERANCE:
ret = pm_qos_update_target(&qos->latency_tolerance,
- &req->data.pnode, action, value);
+ &req->data.pnode, action, value,
+ true);
if (ret) {
value = pm_qos_read_value(&qos->latency_tolerance);
req->dev->power.set_latency_tolerance(req->dev, value);
diff --git a/drivers/base/power/sysfs.c b/drivers/base/power/sysfs.c
index d713738..48ddeef 100644
--- a/drivers/base/power/sysfs.c
+++ b/drivers/base/power/sysfs.c
@@ -7,6 +7,7 @@
#include <linux/export.h>
#include <linux/pm_qos.h>
#include <linux/pm_runtime.h>
+#include <linux/pm_wakeup.h>
#include <linux/atomic.h>
#include <linux/jiffies.h>
#include "power.h"
@@ -648,6 +649,10 @@ int dpm_sysfs_add(struct device *dev)
{
int rc;
+ /* No need to create PM sysfs if explicitly disabled. */
+ if (device_pm_not_required(dev))
+ return 0;
+
rc = sysfs_create_group(&dev->kobj, &pm_attr_group);
if (rc)
return rc;
@@ -668,8 +673,13 @@ int dpm_sysfs_add(struct device *dev)
if (rc)
goto err_wakeup;
}
+ rc = pm_wakeup_source_sysfs_add(dev);
+ if (rc)
+ goto err_latency;
return 0;
+ err_latency:
+ sysfs_unmerge_group(&dev->kobj, &pm_qos_latency_tolerance_attr_group);
err_wakeup:
sysfs_unmerge_group(&dev->kobj, &pm_wakeup_attr_group);
err_runtime:
@@ -727,6 +737,8 @@ void rpm_sysfs_remove(struct device *dev)
void dpm_sysfs_remove(struct device *dev)
{
+ if (device_pm_not_required(dev))
+ return;
sysfs_unmerge_group(&dev->kobj, &pm_qos_latency_tolerance_attr_group);
dev_pm_qos_constraints_destroy(dev);
rpm_sysfs_remove(dev);
diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
index 2dfa2e04..0e8cad8 100644
--- a/drivers/base/power/wakeup.c
+++ b/drivers/base/power/wakeup.c
@@ -15,6 +15,9 @@
#include <linux/seq_file.h>
#include <linux/debugfs.h>
#include <linux/pm_wakeirq.h>
+#include <linux/irq.h>
+#include <linux/irqdesc.h>
+#include <linux/wakeup_reason.h>
#include <trace/events/power.h>
#include "power.h"
@@ -72,22 +75,7 @@ static struct wakeup_source deleted_ws = {
.lock = __SPIN_LOCK_UNLOCKED(deleted_ws.lock),
};
-/**
- * wakeup_source_prepare - Prepare a new wakeup source for initialization.
- * @ws: Wakeup source to prepare.
- * @name: Pointer to the name of the new wakeup source.
- *
- * Callers must ensure that the @name string won't be freed when @ws is still in
- * use.
- */
-void wakeup_source_prepare(struct wakeup_source *ws, const char *name)
-{
- if (ws) {
- memset(ws, 0, sizeof(*ws));
- ws->name = name;
- }
-}
-EXPORT_SYMBOL_GPL(wakeup_source_prepare);
+static DEFINE_IDA(wakeup_ida);
/**
* wakeup_source_create - Create a struct wakeup_source object.
@@ -96,32 +84,34 @@ EXPORT_SYMBOL_GPL(wakeup_source_prepare);
struct wakeup_source *wakeup_source_create(const char *name)
{
struct wakeup_source *ws;
+ const char *ws_name;
+ int id;
- ws = kmalloc(sizeof(*ws), GFP_KERNEL);
+ ws = kzalloc(sizeof(*ws), GFP_KERNEL);
if (!ws)
- return NULL;
+ goto err_ws;
- wakeup_source_prepare(ws, name ? kstrdup_const(name, GFP_KERNEL) : NULL);
+ ws_name = kstrdup_const(name, GFP_KERNEL);
+ if (!ws_name)
+ goto err_name;
+ ws->name = ws_name;
+
+ id = ida_alloc(&wakeup_ida, GFP_KERNEL);
+ if (id < 0)
+ goto err_id;
+ ws->id = id;
+
return ws;
+
+err_id:
+ kfree_const(ws->name);
+err_name:
+ kfree(ws);
+err_ws:
+ return NULL;
}
EXPORT_SYMBOL_GPL(wakeup_source_create);
-/**
- * wakeup_source_drop - Prepare a struct wakeup_source object for destruction.
- * @ws: Wakeup source to prepare for destruction.
- *
- * Callers must ensure that __pm_stay_awake() or __pm_wakeup_event() will never
- * be run in parallel with this function for the same wakeup source object.
- */
-void wakeup_source_drop(struct wakeup_source *ws)
-{
- if (!ws)
- return;
-
- __pm_relax(ws);
-}
-EXPORT_SYMBOL_GPL(wakeup_source_drop);
-
/*
* Record wakeup_source statistics being deleted into a dummy wakeup_source.
*/
@@ -150,6 +140,13 @@ static void wakeup_source_record(struct wakeup_source *ws)
spin_unlock_irqrestore(&deleted_ws.lock, flags);
}
+static void wakeup_source_free(struct wakeup_source *ws)
+{
+ ida_free(&wakeup_ida, ws->id);
+ kfree_const(ws->name);
+ kfree(ws);
+}
+
/**
* wakeup_source_destroy - Destroy a struct wakeup_source object.
* @ws: Wakeup source to destroy.
@@ -161,10 +158,9 @@ void wakeup_source_destroy(struct wakeup_source *ws)
if (!ws)
return;
- wakeup_source_drop(ws);
+ __pm_relax(ws);
wakeup_source_record(ws);
- kfree_const(ws->name);
- kfree(ws);
+ wakeup_source_free(ws);
}
EXPORT_SYMBOL_GPL(wakeup_source_destroy);
@@ -216,16 +212,26 @@ EXPORT_SYMBOL_GPL(wakeup_source_remove);
/**
* wakeup_source_register - Create wakeup source and add it to the list.
+ * @dev: Device this wakeup source is associated with (or NULL if virtual).
* @name: Name of the wakeup source to register.
*/
-struct wakeup_source *wakeup_source_register(const char *name)
+struct wakeup_source *wakeup_source_register(struct device *dev,
+ const char *name)
{
struct wakeup_source *ws;
+ int ret;
ws = wakeup_source_create(name);
- if (ws)
+ if (ws) {
+ if (!dev || device_is_registered(dev)) {
+ ret = wakeup_source_sysfs_add(dev, ws);
+ if (ret) {
+ wakeup_source_free(ws);
+ return NULL;
+ }
+ }
wakeup_source_add(ws);
-
+ }
return ws;
}
EXPORT_SYMBOL_GPL(wakeup_source_register);
@@ -238,6 +244,9 @@ void wakeup_source_unregister(struct wakeup_source *ws)
{
if (ws) {
wakeup_source_remove(ws);
+ if (ws->dev)
+ wakeup_source_sysfs_remove(ws);
+
wakeup_source_destroy(ws);
}
}
@@ -281,7 +290,7 @@ int device_wakeup_enable(struct device *dev)
if (pm_suspend_target_state != PM_SUSPEND_ON)
dev_dbg(dev, "Suspicious %s() during system transition!\n", __func__);
- ws = wakeup_source_register(dev_name(dev));
+ ws = wakeup_source_register(dev, dev_name(dev));
if (!ws)
return -ENOMEM;
@@ -809,6 +818,37 @@ void pm_wakeup_dev_event(struct device *dev, unsigned int msec, bool hard)
}
EXPORT_SYMBOL_GPL(pm_wakeup_dev_event);
+void pm_get_active_wakeup_sources(char *pending_wakeup_source, size_t max)
+{
+ struct wakeup_source *ws, *last_active_ws = NULL;
+ int len = 0;
+ bool active = false;
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(ws, &wakeup_sources, entry) {
+ if (ws->active && len < max) {
+ if (!active)
+ len += scnprintf(pending_wakeup_source, max,
+ "Pending Wakeup Sources: ");
+ len += scnprintf(pending_wakeup_source + len, max - len,
+ "%s ", ws->name);
+ active = true;
+ } else if (!active &&
+ (!last_active_ws ||
+ ktime_to_ns(ws->last_time) >
+ ktime_to_ns(last_active_ws->last_time))) {
+ last_active_ws = ws;
+ }
+ }
+ if (!active && last_active_ws) {
+ scnprintf(pending_wakeup_source, max,
+ "Last active Wakeup Source: %s",
+ last_active_ws->name);
+ }
+ rcu_read_unlock();
+}
+EXPORT_SYMBOL_GPL(pm_get_active_wakeup_sources);
+
void pm_print_active_wakeup_sources(void)
{
struct wakeup_source *ws;
@@ -847,6 +887,7 @@ bool pm_wakeup_pending(void)
{
unsigned long flags;
bool ret = false;
+ char suspend_abort[MAX_SUSPEND_ABORT_LEN];
raw_spin_lock_irqsave(&events_lock, flags);
if (events_check_enabled) {
@@ -859,8 +900,10 @@ bool pm_wakeup_pending(void)
raw_spin_unlock_irqrestore(&events_lock, flags);
if (ret) {
- pr_debug("PM: Wakeup pending, aborting suspend\n");
- pm_print_active_wakeup_sources();
+ pm_get_active_wakeup_sources(suspend_abort,
+ MAX_SUSPEND_ABORT_LEN);
+ log_suspend_abort_reason(suspend_abort);
+ pr_info("PM: %s\n", suspend_abort);
}
return ret || atomic_read(&pm_abort_suspend) > 0;
@@ -888,6 +931,18 @@ void pm_wakeup_clear(bool reset)
void pm_system_irq_wakeup(unsigned int irq_number)
{
if (pm_wakeup_irq == 0) {
+ struct irq_desc *desc;
+ const char *name = "null";
+
+ desc = irq_to_desc(irq_number);
+ if (desc == NULL)
+ name = "stray irq";
+ else if (desc->action && desc->action->name)
+ name = desc->action->name;
+
+ log_irq_wakeup_reason(irq_number);
+ pr_warn("%s: %d triggered %s\n", __func__, irq_number, name);
+
pm_wakeup_irq = irq_number;
pm_system_wakeup();
}
diff --git a/drivers/base/power/wakeup_stats.c b/drivers/base/power/wakeup_stats.c
new file mode 100644
index 0000000..c773491
--- /dev/null
+++ b/drivers/base/power/wakeup_stats.c
@@ -0,0 +1,214 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Wakeup statistics in sysfs
+ *
+ * Copyright (c) 2019 Linux Foundation
+ * Copyright (c) 2019 Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+ * Copyright (c) 2019 Google Inc.
+ */
+
+#include <linux/device.h>
+#include <linux/idr.h>
+#include <linux/init.h>
+#include <linux/kdev_t.h>
+#include <linux/kernel.h>
+#include <linux/kobject.h>
+#include <linux/slab.h>
+#include <linux/timekeeping.h>
+
+#include "power.h"
+
+static struct class *wakeup_class;
+
+#define wakeup_attr(_name) \
+static ssize_t _name##_show(struct device *dev, \
+ struct device_attribute *attr, char *buf) \
+{ \
+ struct wakeup_source *ws = dev_get_drvdata(dev); \
+ \
+ return sprintf(buf, "%lu\n", ws->_name); \
+} \
+static DEVICE_ATTR_RO(_name)
+
+wakeup_attr(active_count);
+wakeup_attr(event_count);
+wakeup_attr(wakeup_count);
+wakeup_attr(expire_count);
+
+static ssize_t active_time_ms_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct wakeup_source *ws = dev_get_drvdata(dev);
+ ktime_t active_time =
+ ws->active ? ktime_sub(ktime_get(), ws->last_time) : 0;
+
+ return sprintf(buf, "%lld\n", ktime_to_ms(active_time));
+}
+static DEVICE_ATTR_RO(active_time_ms);
+
+static ssize_t total_time_ms_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct wakeup_source *ws = dev_get_drvdata(dev);
+ ktime_t active_time;
+ ktime_t total_time = ws->total_time;
+
+ if (ws->active) {
+ active_time = ktime_sub(ktime_get(), ws->last_time);
+ total_time = ktime_add(total_time, active_time);
+ }
+ return sprintf(buf, "%lld\n", ktime_to_ms(total_time));
+}
+static DEVICE_ATTR_RO(total_time_ms);
+
+static ssize_t max_time_ms_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct wakeup_source *ws = dev_get_drvdata(dev);
+ ktime_t active_time;
+ ktime_t max_time = ws->max_time;
+
+ if (ws->active) {
+ active_time = ktime_sub(ktime_get(), ws->last_time);
+ if (active_time > max_time)
+ max_time = active_time;
+ }
+ return sprintf(buf, "%lld\n", ktime_to_ms(max_time));
+}
+static DEVICE_ATTR_RO(max_time_ms);
+
+static ssize_t last_change_ms_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct wakeup_source *ws = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%lld\n", ktime_to_ms(ws->last_time));
+}
+static DEVICE_ATTR_RO(last_change_ms);
+
+static ssize_t name_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct wakeup_source *ws = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%s\n", ws->name);
+}
+static DEVICE_ATTR_RO(name);
+
+static ssize_t prevent_suspend_time_ms_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct wakeup_source *ws = dev_get_drvdata(dev);
+ ktime_t prevent_sleep_time = ws->prevent_sleep_time;
+
+ if (ws->active && ws->autosleep_enabled) {
+ prevent_sleep_time = ktime_add(prevent_sleep_time,
+ ktime_sub(ktime_get(), ws->start_prevent_time));
+ }
+ return sprintf(buf, "%lld\n", ktime_to_ms(prevent_sleep_time));
+}
+static DEVICE_ATTR_RO(prevent_suspend_time_ms);
+
+static struct attribute *wakeup_source_attrs[] = {
+ &dev_attr_name.attr,
+ &dev_attr_active_count.attr,
+ &dev_attr_event_count.attr,
+ &dev_attr_wakeup_count.attr,
+ &dev_attr_expire_count.attr,
+ &dev_attr_active_time_ms.attr,
+ &dev_attr_total_time_ms.attr,
+ &dev_attr_max_time_ms.attr,
+ &dev_attr_last_change_ms.attr,
+ &dev_attr_prevent_suspend_time_ms.attr,
+ NULL,
+};
+ATTRIBUTE_GROUPS(wakeup_source);
+
+static void device_create_release(struct device *dev)
+{
+ kfree(dev);
+}
+
+static struct device *wakeup_source_device_create(struct device *parent,
+ struct wakeup_source *ws)
+{
+ struct device *dev = NULL;
+ int retval = -ENODEV;
+
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (!dev) {
+ retval = -ENOMEM;
+ goto error;
+ }
+
+ device_initialize(dev);
+ dev->devt = MKDEV(0, 0);
+ dev->class = wakeup_class;
+ dev->parent = parent;
+ dev->groups = wakeup_source_groups;
+ dev->release = device_create_release;
+ dev_set_drvdata(dev, ws);
+ device_set_pm_not_required(dev);
+
+ retval = kobject_set_name(&dev->kobj, "wakeup%d", ws->id);
+ if (retval)
+ goto error;
+
+ retval = device_add(dev);
+ if (retval)
+ goto error;
+
+ return dev;
+
+error:
+ put_device(dev);
+ return ERR_PTR(retval);
+}
+
+/**
+ * wakeup_source_sysfs_add - Add wakeup_source attributes to sysfs.
+ * @parent: Device given wakeup source is associated with (or NULL if virtual).
+ * @ws: Wakeup source to be added in sysfs.
+ */
+int wakeup_source_sysfs_add(struct device *parent, struct wakeup_source *ws)
+{
+ struct device *dev;
+
+ dev = wakeup_source_device_create(parent, ws);
+ if (IS_ERR(dev))
+ return PTR_ERR(dev);
+ ws->dev = dev;
+
+ return 0;
+}
+
+/**
+ * pm_wakeup_source_sysfs_add - Add wakeup_source attributes to sysfs
+ * for a device if they're missing.
+ * @parent: Device given wakeup source is associated with
+ */
+int pm_wakeup_source_sysfs_add(struct device *parent)
+{
+ if (!parent->power.wakeup || parent->power.wakeup->dev)
+ return 0;
+
+ return wakeup_source_sysfs_add(parent, parent->power.wakeup);
+}
+
+/**
+ * wakeup_source_sysfs_remove - Remove wakeup_source attributes from sysfs.
+ * @ws: Wakeup source to be removed from sysfs.
+ */
+void wakeup_source_sysfs_remove(struct wakeup_source *ws)
+{
+ device_unregister(ws->dev);
+}
+
+static int __init wakeup_sources_sysfs_init(void)
+{
+ wakeup_class = class_create(THIS_MODULE, "wakeup");
+
+ return PTR_ERR_OR_ZERO(wakeup_class);
+}
+postcore_initcall(wakeup_sources_sysfs_init);
diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c
index 982c7ac..6896e48 100644
--- a/drivers/base/regmap/regmap-irq.c
+++ b/drivers/base/regmap/regmap-irq.c
@@ -154,6 +154,9 @@ static void regmap_irq_sync_unlock(struct irq_data *data)
ret = regmap_write(map, reg, ~d->mask_buf[i]);
else
ret = regmap_write(map, reg, d->mask_buf[i]);
+ /* some chips needs to clear ack reg after ack */
+ if (d->chip->clear_ack)
+ ret = regmap_write(map, reg, 0x0);
if (ret != 0)
dev_err(d->map->dev, "Failed to ack 0x%x: %d\n",
reg, ret);
@@ -364,6 +367,9 @@ static irqreturn_t regmap_irq_thread(int irq, void *d)
reg = chip->ack_base +
(i * map->reg_stride * data->irq_reg_stride);
ret = regmap_write(map, reg, data->status_buf[i]);
+ /* some chips needs to clear ack reg after ack */
+ if (chip->clear_ack)
+ ret = regmap_write(map, reg, 0x0);
if (ret != 0)
dev_err(map->dev, "Failed to ack 0x%x: %d\n",
reg, ret);
@@ -575,6 +581,9 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
else
ret = regmap_write(map, reg,
d->status_buf[i] & d->mask_buf[i]);
+ /* some chips needs to clear ack reg after ack */
+ if (chip->clear_ack)
+ ret = regmap_write(map, reg, 0x0);
if (ret != 0) {
dev_err(map->dev, "Failed to ack 0x%x: %d\n",
reg, ret);
diff --git a/drivers/base/soc.c b/drivers/base/soc.c
index 7e91894..61638ac 100644
--- a/drivers/base/soc.c
+++ b/drivers/base/soc.c
@@ -40,6 +40,7 @@ struct device *soc_device_to_device(struct soc_device *soc_dev)
{
return &soc_dev->dev;
}
+EXPORT_SYMBOL_GPL(soc_device_to_device);
static umode_t soc_attribute_mode(struct kobject *kobj,
struct attribute *attr,
diff --git a/drivers/base/syscore.c b/drivers/base/syscore.c
index 6e076f3..996573f 100644
--- a/drivers/base/syscore.c
+++ b/drivers/base/syscore.c
@@ -10,6 +10,7 @@
#include <linux/module.h>
#include <linux/suspend.h>
#include <trace/events/power.h>
+#include <linux/wakeup_reason.h>
static LIST_HEAD(syscore_ops_list);
static DEFINE_MUTEX(syscore_ops_lock);
@@ -74,6 +75,8 @@ int syscore_suspend(void)
return 0;
err_out:
+ log_suspend_abort_reason("System core suspend callback %pF failed",
+ ops->suspend);
pr_err("PM: System core suspend callback %pF failed.\n", ops->suspend);
list_for_each_entry_continue(ops, &syscore_ops_list, node)
diff --git a/drivers/block/aoe/aoe.h b/drivers/block/aoe/aoe.h
index 015c680..c0ebda1 100644
--- a/drivers/block/aoe/aoe.h
+++ b/drivers/block/aoe/aoe.h
@@ -201,6 +201,7 @@ int aoeblk_init(void);
void aoeblk_exit(void);
void aoeblk_gdalloc(void *);
void aoedisk_rm_debugfs(struct aoedev *d);
+void aoedisk_rm_sysfs(struct aoedev *d);
int aoechr_init(void);
void aoechr_exit(void);
diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index ff770e7..429ebb8 100644
--- a/drivers/block/aoe/aoeblk.c
+++ b/drivers/block/aoe/aoeblk.c
@@ -177,15 +177,10 @@ static struct attribute *aoe_attrs[] = {
NULL,
};
-static const struct attribute_group aoe_attr_group = {
+static const struct attribute_group attr_group = {
.attrs = aoe_attrs,
};
-static const struct attribute_group *aoe_attr_groups[] = {
- &aoe_attr_group,
- NULL,
-};
-
static const struct file_operations aoe_debugfs_fops = {
.open = aoe_debugfs_open,
.read = seq_read,
@@ -225,6 +220,17 @@ aoedisk_rm_debugfs(struct aoedev *d)
}
static int
+aoedisk_add_sysfs(struct aoedev *d)
+{
+ return sysfs_create_group(&disk_to_dev(d->gd)->kobj, &attr_group);
+}
+void
+aoedisk_rm_sysfs(struct aoedev *d)
+{
+ sysfs_remove_group(&disk_to_dev(d->gd)->kobj, &attr_group);
+}
+
+static int
aoeblk_open(struct block_device *bdev, fmode_t mode)
{
struct aoedev *d = bdev->bd_disk->private_data;
@@ -411,7 +417,8 @@ aoeblk_gdalloc(void *vp)
spin_unlock_irqrestore(&d->lock, flags);
- device_add_disk(NULL, gd, aoe_attr_groups);
+ add_disk(gd);
+ aoedisk_add_sysfs(d);
aoedisk_add_debugfs(d);
spin_lock_irqsave(&d->lock, flags);
diff --git a/drivers/block/aoe/aoedev.c b/drivers/block/aoe/aoedev.c
index f29a140..41060e9 100644
--- a/drivers/block/aoe/aoedev.c
+++ b/drivers/block/aoe/aoedev.c
@@ -275,6 +275,7 @@ freedev(struct aoedev *d)
del_timer_sync(&d->timer);
if (d->gd) {
aoedisk_rm_debugfs(d);
+ aoedisk_rm_sysfs(d);
del_gendisk(d->gd);
put_disk(d->gd);
blk_cleanup_queue(d->blkq);
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 8f444b3..bf222c4 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -4713,7 +4713,7 @@ static int __init do_floppy_init(void)
/* to be cleaned up... */
disks[drive]->private_data = (void *)(long)drive;
disks[drive]->flags |= GENHD_FL_REMOVABLE;
- device_add_disk(&floppy_device[drive].dev, disks[drive], NULL);
+ device_add_disk(&floppy_device[drive].dev, disks[drive]);
}
return 0;
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 19042b4..5094ef1 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -213,7 +213,8 @@ static void __loop_update_dio(struct loop_device *lo, bool dio)
* LO_FLAGS_READ_ONLY, both are set from kernel, and losetup
* will get updated by ioctl(LOOP_GET_STATUS)
*/
- blk_mq_freeze_queue(lo->lo_queue);
+ if (lo->lo_state == Lo_bound)
+ blk_mq_freeze_queue(lo->lo_queue);
lo->use_dio = use_dio;
if (use_dio) {
blk_queue_flag_clear(QUEUE_FLAG_NOMERGES, lo->lo_queue);
@@ -222,27 +223,39 @@ static void __loop_update_dio(struct loop_device *lo, bool dio)
blk_queue_flag_set(QUEUE_FLAG_NOMERGES, lo->lo_queue);
lo->lo_flags &= ~LO_FLAGS_DIRECT_IO;
}
- blk_mq_unfreeze_queue(lo->lo_queue);
+ if (lo->lo_state == Lo_bound)
+ blk_mq_unfreeze_queue(lo->lo_queue);
}
+/**
+ * loop_validate_block_size() - validates the passed in block size
+ * @bsize: size to validate
+ */
static int
-figure_loop_size(struct loop_device *lo, loff_t offset, loff_t sizelimit)
+loop_validate_block_size(unsigned short bsize)
{
- loff_t size = get_size(offset, sizelimit, lo->lo_backing_file);
- sector_t x = (sector_t)size;
+ if (bsize < 512 || bsize > PAGE_SIZE || !is_power_of_2(bsize))
+ return -EINVAL;
+
+ return 0;
+}
+
+/**
+ * loop_set_size() - sets device size and notifies userspace
+ * @lo: struct loop_device to set the size for
+ * @size: new size of the loop device
+ *
+ * Callers must validate that the size passed into this function fits into
+ * a sector_t, eg using loop_validate_size()
+ */
+static void loop_set_size(struct loop_device *lo, loff_t size)
+{
struct block_device *bdev = lo->lo_device;
- if (unlikely((loff_t)x != size))
- return -EFBIG;
- if (lo->lo_offset != offset)
- lo->lo_offset = offset;
- if (lo->lo_sizelimit != sizelimit)
- lo->lo_sizelimit = sizelimit;
- set_capacity(lo->lo_disk, x);
- bd_set_size(bdev, (loff_t)get_capacity(bdev->bd_disk) << 9);
+ set_capacity(lo->lo_disk, size);
+ bd_set_size(bdev, size << SECTOR_SHIFT);
/* let user-space know about the new size */
kobject_uevent(&disk_to_dev(bdev->bd_disk)->kobj, KOBJ_CHANGE);
- return 0;
}
static inline int
@@ -934,103 +947,6 @@ static int loop_prepare_queue(struct loop_device *lo)
return 0;
}
-static int loop_set_fd(struct loop_device *lo, fmode_t mode,
- struct block_device *bdev, unsigned int arg)
-{
- struct file *file;
- struct inode *inode;
- struct address_space *mapping;
- int lo_flags = 0;
- int error;
- loff_t size;
- bool partscan;
-
- /* This is safe, since we have a reference from open(). */
- __module_get(THIS_MODULE);
-
- error = -EBADF;
- file = fget(arg);
- if (!file)
- goto out;
-
- error = mutex_lock_killable(&loop_ctl_mutex);
- if (error)
- goto out_putf;
-
- error = -EBUSY;
- if (lo->lo_state != Lo_unbound)
- goto out_unlock;
-
- error = loop_validate_file(file, bdev);
- if (error)
- goto out_unlock;
-
- mapping = file->f_mapping;
- inode = mapping->host;
-
- if (!(file->f_mode & FMODE_WRITE) || !(mode & FMODE_WRITE) ||
- !file->f_op->write_iter)
- lo_flags |= LO_FLAGS_READ_ONLY;
-
- error = -EFBIG;
- size = get_loop_size(lo, file);
- if ((loff_t)(sector_t)size != size)
- goto out_unlock;
- error = loop_prepare_queue(lo);
- if (error)
- goto out_unlock;
-
- error = 0;
-
- set_device_ro(bdev, (lo_flags & LO_FLAGS_READ_ONLY) != 0);
-
- lo->use_dio = false;
- lo->lo_device = bdev;
- lo->lo_flags = lo_flags;
- lo->lo_backing_file = file;
- lo->transfer = NULL;
- lo->ioctl = NULL;
- lo->lo_sizelimit = 0;
- lo->old_gfp_mask = mapping_gfp_mask(mapping);
- mapping_set_gfp_mask(mapping, lo->old_gfp_mask & ~(__GFP_IO|__GFP_FS));
-
- if (!(lo_flags & LO_FLAGS_READ_ONLY) && file->f_op->fsync)
- blk_queue_write_cache(lo->lo_queue, true, false);
-
- loop_update_dio(lo);
- set_capacity(lo->lo_disk, size);
- bd_set_size(bdev, size << 9);
- loop_sysfs_init(lo);
- /* let user-space know about the new size */
- kobject_uevent(&disk_to_dev(bdev->bd_disk)->kobj, KOBJ_CHANGE);
-
- set_blocksize(bdev, S_ISBLK(inode->i_mode) ?
- block_size(inode->i_bdev) : PAGE_SIZE);
-
- lo->lo_state = Lo_bound;
- if (part_shift)
- lo->lo_flags |= LO_FLAGS_PARTSCAN;
- partscan = lo->lo_flags & LO_FLAGS_PARTSCAN;
-
- /* Grab the block_device to prevent its destruction after we
- * put /dev/loopXX inode. Later in __loop_clr_fd() we bdput(bdev).
- */
- bdgrab(bdev);
- mutex_unlock(&loop_ctl_mutex);
- if (partscan)
- loop_reread_partitions(lo, bdev);
- return 0;
-
-out_unlock:
- mutex_unlock(&loop_ctl_mutex);
-out_putf:
- fput(file);
-out:
- /* This is safe: open() is still holding a reference. */
- module_put(THIS_MODULE);
- return error;
-}
-
static int
loop_release_xfer(struct loop_device *lo)
{
@@ -1068,6 +984,186 @@ loop_init_xfer(struct loop_device *lo, struct loop_func_table *xfer,
return err;
}
+/**
+ * loop_set_status_from_info - configure device from loop_info
+ * @lo: struct loop_device to configure
+ * @info: struct loop_info64 to configure the device with
+ *
+ * Configures the loop device parameters according to the passed
+ * in loop_info64 configuration.
+ */
+static int
+loop_set_status_from_info(struct loop_device *lo,
+ const struct loop_info64 *info)
+{
+ int err;
+ struct loop_func_table *xfer;
+ kuid_t uid = current_uid();
+
+ if ((unsigned int) info->lo_encrypt_key_size > LO_KEY_SIZE)
+ return -EINVAL;
+
+ err = loop_release_xfer(lo);
+ if (err)
+ return err;
+
+ if (info->lo_encrypt_type) {
+ unsigned int type = info->lo_encrypt_type;
+
+ if (type >= MAX_LO_CRYPT)
+ return -EINVAL;
+ xfer = xfer_funcs[type];
+ if (xfer == NULL)
+ return -EINVAL;
+ } else
+ xfer = NULL;
+
+ err = loop_init_xfer(lo, xfer, info);
+ if (err)
+ return err;
+
+ lo->lo_offset = info->lo_offset;
+ lo->lo_sizelimit = info->lo_sizelimit;
+ memcpy(lo->lo_file_name, info->lo_file_name, LO_NAME_SIZE);
+ memcpy(lo->lo_crypt_name, info->lo_crypt_name, LO_NAME_SIZE);
+ lo->lo_file_name[LO_NAME_SIZE-1] = 0;
+ lo->lo_crypt_name[LO_NAME_SIZE-1] = 0;
+
+ if (!xfer)
+ xfer = &none_funcs;
+ lo->transfer = xfer->transfer;
+ lo->ioctl = xfer->ioctl;
+
+ lo->lo_flags = info->lo_flags;
+
+ lo->lo_encrypt_key_size = info->lo_encrypt_key_size;
+ lo->lo_init[0] = info->lo_init[0];
+ lo->lo_init[1] = info->lo_init[1];
+ if (info->lo_encrypt_key_size) {
+ memcpy(lo->lo_encrypt_key, info->lo_encrypt_key,
+ info->lo_encrypt_key_size);
+ lo->lo_key_owner = uid;
+ }
+
+ return 0;
+}
+
+static int loop_configure(struct loop_device *lo, fmode_t mode,
+ struct block_device *bdev,
+ const struct loop_config *config)
+{
+ struct file *file;
+ struct inode *inode;
+ struct address_space *mapping;
+ int error;
+ loff_t size;
+ bool partscan;
+ unsigned short bsize;
+
+ /* This is safe, since we have a reference from open(). */
+ __module_get(THIS_MODULE);
+
+ error = -EBADF;
+ file = fget(config->fd);
+ if (!file)
+ goto out;
+
+ error = mutex_lock_killable(&loop_ctl_mutex);
+ if (error)
+ goto out_putf;
+
+ error = -EBUSY;
+ if (lo->lo_state != Lo_unbound)
+ goto out_unlock;
+
+ error = loop_validate_file(file, bdev);
+ if (error)
+ goto out_unlock;
+
+ mapping = file->f_mapping;
+ inode = mapping->host;
+
+ size = get_loop_size(lo, file);
+
+ if ((config->info.lo_flags & ~LOOP_CONFIGURE_SETTABLE_FLAGS) != 0) {
+ error = -EINVAL;
+ goto out_unlock;
+ }
+
+ if (config->block_size) {
+ error = loop_validate_block_size(config->block_size);
+ if (error)
+ goto out_unlock;
+ }
+
+ error = loop_set_status_from_info(lo, &config->info);
+ if (error)
+ goto out_unlock;
+
+ if (!(file->f_mode & FMODE_WRITE) || !(mode & FMODE_WRITE) ||
+ !file->f_op->write_iter)
+ lo->lo_flags |= LO_FLAGS_READ_ONLY;
+
+ error = loop_prepare_queue(lo);
+ if (error)
+ goto out_unlock;
+
+ error = 0;
+
+ set_device_ro(bdev, (lo->lo_flags & LO_FLAGS_READ_ONLY) != 0);
+
+ lo->use_dio = lo->lo_flags & LO_FLAGS_DIRECT_IO;
+ lo->lo_device = bdev;
+ lo->lo_backing_file = file;
+ lo->old_gfp_mask = mapping_gfp_mask(mapping);
+ mapping_set_gfp_mask(mapping, lo->old_gfp_mask & ~(__GFP_IO|__GFP_FS));
+
+ if (!(lo->lo_flags & LO_FLAGS_READ_ONLY) && file->f_op->fsync)
+ blk_queue_write_cache(lo->lo_queue, true, false);
+
+ if (config->block_size)
+ bsize = config->block_size;
+ else if (io_is_direct(lo->lo_backing_file) && inode->i_sb->s_bdev)
+ /* In case of direct I/O, match underlying block size */
+ bsize = bdev_logical_block_size(inode->i_sb->s_bdev);
+ else
+ bsize = 512;
+
+ blk_queue_logical_block_size(lo->lo_queue, bsize);
+ blk_queue_physical_block_size(lo->lo_queue, bsize);
+ blk_queue_io_min(lo->lo_queue, bsize);
+
+ loop_update_dio(lo);
+ loop_sysfs_init(lo);
+ loop_set_size(lo, size);
+
+ set_blocksize(bdev, S_ISBLK(inode->i_mode) ?
+ block_size(inode->i_bdev) : PAGE_SIZE);
+
+ lo->lo_state = Lo_bound;
+ if (part_shift)
+ lo->lo_flags |= LO_FLAGS_PARTSCAN;
+ partscan = lo->lo_flags & LO_FLAGS_PARTSCAN;
+
+ /* Grab the block_device to prevent its destruction after we
+ * put /dev/loopXX inode. Later in __loop_clr_fd() we bdput(bdev).
+ */
+ bdgrab(bdev);
+ mutex_unlock(&loop_ctl_mutex);
+ if (partscan)
+ loop_reread_partitions(lo, bdev);
+ return 0;
+
+out_unlock:
+ mutex_unlock(&loop_ctl_mutex);
+out_putf:
+ fput(file);
+out:
+ /* This is safe: open() is still holding a reference. */
+ module_put(THIS_MODULE);
+ return error;
+}
+
static int __loop_clr_fd(struct loop_device *lo, bool release)
{
struct file *filp = NULL;
@@ -1215,10 +1311,11 @@ static int
loop_set_status(struct loop_device *lo, const struct loop_info64 *info)
{
int err;
- struct loop_func_table *xfer;
- kuid_t uid = current_uid();
struct block_device *bdev;
+ kuid_t uid = current_uid();
+ int prev_lo_flags;
bool partscan = false;
+ bool size_changed = false;
err = mutex_lock_killable(&loop_ctl_mutex);
if (err)
@@ -1233,13 +1330,10 @@ loop_set_status(struct loop_device *lo, const struct loop_info64 *info)
err = -ENXIO;
goto out_unlock;
}
- if ((unsigned int) info->lo_encrypt_key_size > LO_KEY_SIZE) {
- err = -EINVAL;
- goto out_unlock;
- }
if (lo->lo_offset != info->lo_offset ||
lo->lo_sizelimit != info->lo_sizelimit) {
+ size_changed = true;
sync_blockdev(lo->lo_device);
invalidate_bdev(lo->lo_device);
}
@@ -1247,79 +1341,44 @@ loop_set_status(struct loop_device *lo, const struct loop_info64 *info)
/* I/O need to be drained during transfer transition */
blk_mq_freeze_queue(lo->lo_queue);
- err = loop_release_xfer(lo);
+ if (size_changed && lo->lo_device->bd_inode->i_mapping->nrpages) {
+ /* If any pages were dirtied after kill_bdev(), try again */
+ err = -EAGAIN;
+ pr_warn("%s: loop%d (%s) has still dirty pages (nrpages=%lu)\n",
+ __func__, lo->lo_number, lo->lo_file_name,
+ lo->lo_device->bd_inode->i_mapping->nrpages);
+ goto out_unfreeze;
+ }
+
+ prev_lo_flags = lo->lo_flags;
+
+ err = loop_set_status_from_info(lo, info);
if (err)
goto out_unfreeze;
- if (info->lo_encrypt_type) {
- unsigned int type = info->lo_encrypt_type;
+ /* Mask out flags that can't be set using LOOP_SET_STATUS. */
+ lo->lo_flags &= LOOP_SET_STATUS_SETTABLE_FLAGS;
+ /* For those flags, use the previous values instead */
+ lo->lo_flags |= prev_lo_flags & ~LOOP_SET_STATUS_SETTABLE_FLAGS;
+ /* For flags that can't be cleared, use previous values too */
+ lo->lo_flags |= prev_lo_flags & ~LOOP_SET_STATUS_CLEARABLE_FLAGS;
- if (type >= MAX_LO_CRYPT) {
- err = -EINVAL;
- goto out_unfreeze;
- }
- xfer = xfer_funcs[type];
- if (xfer == NULL) {
- err = -EINVAL;
- goto out_unfreeze;
- }
- } else
- xfer = NULL;
-
- err = loop_init_xfer(lo, xfer, info);
- if (err)
- goto out_unfreeze;
-
- if (lo->lo_offset != info->lo_offset ||
- lo->lo_sizelimit != info->lo_sizelimit) {
- /* kill_bdev should have truncated all the pages */
- if (lo->lo_device->bd_inode->i_mapping->nrpages) {
- err = -EAGAIN;
- pr_warn("%s: loop%d (%s) has still dirty pages (nrpages=%lu)\n",
- __func__, lo->lo_number, lo->lo_file_name,
- lo->lo_device->bd_inode->i_mapping->nrpages);
- goto out_unfreeze;
- }
- if (figure_loop_size(lo, info->lo_offset, info->lo_sizelimit)) {
- err = -EFBIG;
- goto out_unfreeze;
- }
+ if (size_changed) {
+ loff_t new_size = get_size(lo->lo_offset, lo->lo_sizelimit,
+ lo->lo_backing_file);
+ loop_set_size(lo, new_size);
}
loop_config_discard(lo);
- memcpy(lo->lo_file_name, info->lo_file_name, LO_NAME_SIZE);
- memcpy(lo->lo_crypt_name, info->lo_crypt_name, LO_NAME_SIZE);
- lo->lo_file_name[LO_NAME_SIZE-1] = 0;
- lo->lo_crypt_name[LO_NAME_SIZE-1] = 0;
-
- if (!xfer)
- xfer = &none_funcs;
- lo->transfer = xfer->transfer;
- lo->ioctl = xfer->ioctl;
-
- if ((lo->lo_flags & LO_FLAGS_AUTOCLEAR) !=
- (info->lo_flags & LO_FLAGS_AUTOCLEAR))
- lo->lo_flags ^= LO_FLAGS_AUTOCLEAR;
-
- lo->lo_encrypt_key_size = info->lo_encrypt_key_size;
- lo->lo_init[0] = info->lo_init[0];
- lo->lo_init[1] = info->lo_init[1];
- if (info->lo_encrypt_key_size) {
- memcpy(lo->lo_encrypt_key, info->lo_encrypt_key,
- info->lo_encrypt_key_size);
- lo->lo_key_owner = uid;
- }
-
/* update dio if lo_offset or transfer is changed */
__loop_update_dio(lo, lo->use_dio);
out_unfreeze:
blk_mq_unfreeze_queue(lo->lo_queue);
- if (!err && (info->lo_flags & LO_FLAGS_PARTSCAN) &&
- !(lo->lo_flags & LO_FLAGS_PARTSCAN)) {
- lo->lo_flags |= LO_FLAGS_PARTSCAN;
+ if (!err && (lo->lo_flags & LO_FLAGS_PARTSCAN) &&
+ !(prev_lo_flags & LO_FLAGS_PARTSCAN)) {
lo->lo_disk->flags &= ~GENHD_FL_NO_PART_SCAN;
bdev = lo->lo_device;
partscan = true;
@@ -1483,10 +1542,15 @@ loop_get_status64(struct loop_device *lo, struct loop_info64 __user *arg) {
static int loop_set_capacity(struct loop_device *lo)
{
+ loff_t size;
+
if (unlikely(lo->lo_state != Lo_bound))
return -ENXIO;
- return figure_loop_size(lo, lo->lo_offset, lo->lo_sizelimit);
+ size = get_loop_size(lo, lo->lo_backing_file);
+ loop_set_size(lo, size);
+
+ return 0;
}
static int loop_set_dio(struct loop_device *lo, unsigned long arg)
@@ -1510,19 +1574,20 @@ static int loop_set_block_size(struct loop_device *lo, unsigned long arg)
if (lo->lo_state != Lo_bound)
return -ENXIO;
- if (arg < 512 || arg > PAGE_SIZE || !is_power_of_2(arg))
- return -EINVAL;
+ err = loop_validate_block_size(arg);
+ if (err)
+ return err;
- if (lo->lo_queue->limits.logical_block_size != arg) {
- sync_blockdev(lo->lo_device);
- invalidate_bdev(lo->lo_device);
- }
+ if (lo->lo_queue->limits.logical_block_size == arg)
+ return 0;
+
+ sync_blockdev(lo->lo_device);
+ invalidate_bdev(lo->lo_device);
blk_mq_freeze_queue(lo->lo_queue);
/* invalidate_bdev should have truncated all the pages */
- if (lo->lo_queue->limits.logical_block_size != arg &&
- lo->lo_device->bd_inode->i_mapping->nrpages) {
+ if (lo->lo_device->bd_inode->i_mapping->nrpages) {
err = -EAGAIN;
pr_warn("%s: loop%d (%s) has still dirty pages (nrpages=%lu)\n",
__func__, lo->lo_number, lo->lo_file_name,
@@ -1569,11 +1634,31 @@ static int lo_ioctl(struct block_device *bdev, fmode_t mode,
unsigned int cmd, unsigned long arg)
{
struct loop_device *lo = bdev->bd_disk->private_data;
+ void __user *argp = (void __user *) arg;
int err;
switch (cmd) {
- case LOOP_SET_FD:
- return loop_set_fd(lo, mode, bdev, arg);
+ case LOOP_SET_FD: {
+ /*
+ * Legacy case - pass in a zeroed out struct loop_config with
+ * only the file descriptor set , which corresponds with the
+ * default parameters we'd have used otherwise.
+ */
+ struct loop_config config;
+
+ memset(&config, 0, sizeof(config));
+ config.fd = arg;
+
+ return loop_configure(lo, mode, bdev, &config);
+ }
+ case LOOP_CONFIGURE: {
+ struct loop_config config;
+
+ if (copy_from_user(&config, argp, sizeof(config)))
+ return -EFAULT;
+
+ return loop_configure(lo, mode, bdev, &config);
+ }
case LOOP_CHANGE_FD:
return loop_change_fd(lo, bdev, arg);
case LOOP_CLR_FD:
@@ -1581,21 +1666,19 @@ static int lo_ioctl(struct block_device *bdev, fmode_t mode,
case LOOP_SET_STATUS:
err = -EPERM;
if ((mode & FMODE_WRITE) || capable(CAP_SYS_ADMIN)) {
- err = loop_set_status_old(lo,
- (struct loop_info __user *)arg);
+ err = loop_set_status_old(lo, argp);
}
break;
case LOOP_GET_STATUS:
- return loop_get_status_old(lo, (struct loop_info __user *) arg);
+ return loop_get_status_old(lo, argp);
case LOOP_SET_STATUS64:
err = -EPERM;
if ((mode & FMODE_WRITE) || capable(CAP_SYS_ADMIN)) {
- err = loop_set_status64(lo,
- (struct loop_info64 __user *) arg);
+ err = loop_set_status64(lo, argp);
}
break;
case LOOP_GET_STATUS64:
- return loop_get_status64(lo, (struct loop_info64 __user *) arg);
+ return loop_get_status64(lo, argp);
case LOOP_SET_CAPACITY:
case LOOP_SET_DIRECT_IO:
case LOOP_SET_BLOCK_SIZE:
@@ -1747,6 +1830,7 @@ static int lo_compat_ioctl(struct block_device *bdev, fmode_t mode,
case LOOP_CLR_FD:
case LOOP_GET_STATUS64:
case LOOP_SET_STATUS64:
+ case LOOP_CONFIGURE:
arg = (unsigned long) compat_ptr(arg);
/* fall through */
case LOOP_SET_FD:
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 1d7d48d..d0666f5c 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -3861,7 +3861,7 @@ static int mtip_block_initialize(struct driver_data *dd)
set_capacity(dd->disk, capacity);
/* Enable the block device and add it to /dev */
- device_add_disk(&dd->pdev->dev, dd->disk, NULL);
+ device_add_disk(&dd->pdev->dev, dd->disk);
dd->bdev = bdget_disk(dd->disk, 0);
/*
diff --git a/drivers/block/ps3disk.c b/drivers/block/ps3disk.c
index 42bff6b..bd1c66f 100644
--- a/drivers/block/ps3disk.c
+++ b/drivers/block/ps3disk.c
@@ -499,7 +499,7 @@ static int ps3disk_probe(struct ps3_system_bus_device *_dev)
gendisk->disk_name, priv->model, priv->raw_capacity >> 11,
get_capacity(gendisk) >> 11);
- device_add_disk(&dev->sbd.core, gendisk, NULL);
+ device_add_disk(&dev->sbd.core, gendisk);
return 0;
fail_cleanup_queue:
diff --git a/drivers/block/ps3vram.c b/drivers/block/ps3vram.c
index c0c5081..1e3d5de 100644
--- a/drivers/block/ps3vram.c
+++ b/drivers/block/ps3vram.c
@@ -769,7 +769,7 @@ static int ps3vram_probe(struct ps3_system_bus_device *dev)
dev_info(&dev->core, "%s: Using %lu MiB of GPU memory\n",
gendisk->disk_name, get_capacity(gendisk) >> 11);
- device_add_disk(&dev->core, gendisk, NULL);
+ device_add_disk(&dev->core, gendisk);
return 0;
fail_cleanup_queue:
diff --git a/drivers/block/rsxx/dev.c b/drivers/block/rsxx/dev.c
index 3894aa0f..1a92f9e 100644
--- a/drivers/block/rsxx/dev.c
+++ b/drivers/block/rsxx/dev.c
@@ -226,7 +226,7 @@ int rsxx_attach_dev(struct rsxx_cardinfo *card)
set_capacity(card->gendisk, card->size8 >> 9);
else
set_capacity(card->gendisk, 0);
- device_add_disk(CARD_TO_DEV(card), card->gendisk, NULL);
+ device_add_disk(CARD_TO_DEV(card), card->gendisk);
card->bdev_attached = 1;
}
diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c
index 80a5806..27323fa 100644
--- a/drivers/block/skd_main.c
+++ b/drivers/block/skd_main.c
@@ -3104,7 +3104,7 @@ static int skd_bdev_getgeo(struct block_device *bdev, struct hd_geometry *geo)
static int skd_bdev_attach(struct device *parent, struct skd_device *skdev)
{
dev_dbg(&skdev->pdev->dev, "add_disk\n");
- device_add_disk(parent, skdev->disk, NULL);
+ device_add_disk(parent, skdev->disk);
return 0;
}
diff --git a/drivers/block/sunvdc.c b/drivers/block/sunvdc.c
index 6b7b0d8..5d70240 100644
--- a/drivers/block/sunvdc.c
+++ b/drivers/block/sunvdc.c
@@ -862,7 +862,7 @@ static int probe_disk(struct vdc_port *port)
port->vdisk_size, (port->vdisk_size >> (20 - 9)),
port->vio.ver.major, port->vio.ver.minor);
- device_add_disk(&port->vio.vdev->dev, g, NULL);
+ device_add_disk(&port->vio.vdev->dev, g);
return 0;
}
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index dac1769..7d4dd8d 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -423,8 +423,8 @@ static int minor_to_index(int minor)
return minor >> PART_BITS;
}
-static ssize_t serial_show(struct device *dev,
- struct device_attribute *attr, char *buf)
+static ssize_t virtblk_serial_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct gendisk *disk = dev_to_disk(dev);
int err;
@@ -443,7 +443,7 @@ static ssize_t serial_show(struct device *dev,
return err;
}
-static DEVICE_ATTR_RO(serial);
+static DEVICE_ATTR(serial, 0444, virtblk_serial_show, NULL);
/* The queue's logical block size must be set before calling this */
static void virtblk_update_capacity(struct virtio_blk *vblk, bool resize)
@@ -619,8 +619,8 @@ static const char *const virtblk_cache_types[] = {
};
static ssize_t
-cache_type_store(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
+virtblk_cache_type_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct gendisk *disk = dev_to_disk(dev);
struct virtio_blk *vblk = disk->private_data;
@@ -638,7 +638,8 @@ cache_type_store(struct device *dev, struct device_attribute *attr,
}
static ssize_t
-cache_type_show(struct device *dev, struct device_attribute *attr, char *buf)
+virtblk_cache_type_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct gendisk *disk = dev_to_disk(dev);
struct virtio_blk *vblk = disk->private_data;
@@ -648,38 +649,12 @@ cache_type_show(struct device *dev, struct device_attribute *attr, char *buf)
return snprintf(buf, 40, "%s\n", virtblk_cache_types[writeback]);
}
-static DEVICE_ATTR_RW(cache_type);
-
-static struct attribute *virtblk_attrs[] = {
- &dev_attr_serial.attr,
- &dev_attr_cache_type.attr,
- NULL,
-};
-
-static umode_t virtblk_attrs_are_visible(struct kobject *kobj,
- struct attribute *a, int n)
-{
- struct device *dev = container_of(kobj, struct device, kobj);
- struct gendisk *disk = dev_to_disk(dev);
- struct virtio_blk *vblk = disk->private_data;
- struct virtio_device *vdev = vblk->vdev;
-
- if (a == &dev_attr_cache_type.attr &&
- !virtio_has_feature(vdev, VIRTIO_BLK_F_CONFIG_WCE))
- return S_IRUGO;
-
- return a->mode;
-}
-
-static const struct attribute_group virtblk_attr_group = {
- .attrs = virtblk_attrs,
- .is_visible = virtblk_attrs_are_visible,
-};
-
-static const struct attribute_group *virtblk_attr_groups[] = {
- &virtblk_attr_group,
- NULL,
-};
+static const struct device_attribute dev_attr_cache_type_ro =
+ __ATTR(cache_type, 0444,
+ virtblk_cache_type_show, NULL);
+static const struct device_attribute dev_attr_cache_type_rw =
+ __ATTR(cache_type, 0644,
+ virtblk_cache_type_show, virtblk_cache_type_store);
static int virtblk_init_request(struct blk_mq_tag_set *set, struct request *rq,
unsigned int hctx_idx, unsigned int numa_node)
@@ -883,9 +858,24 @@ static int virtblk_probe(struct virtio_device *vdev)
virtblk_update_capacity(vblk, false);
virtio_device_ready(vdev);
- device_add_disk(&vdev->dev, vblk->disk, virtblk_attr_groups);
+ device_add_disk(&vdev->dev, vblk->disk);
+ err = device_create_file(disk_to_dev(vblk->disk), &dev_attr_serial);
+ if (err)
+ goto out_del_disk;
+
+ if (virtio_has_feature(vdev, VIRTIO_BLK_F_CONFIG_WCE))
+ err = device_create_file(disk_to_dev(vblk->disk),
+ &dev_attr_cache_type_rw);
+ else
+ err = device_create_file(disk_to_dev(vblk->disk),
+ &dev_attr_cache_type_ro);
+ if (err)
+ goto out_del_disk;
return 0;
+out_del_disk:
+ del_gendisk(vblk->disk);
+ blk_cleanup_queue(vblk->disk->queue);
out_free_tags:
blk_mq_free_tag_set(&vblk->tag_set);
out_put_disk:
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 1b06c8e4..d4ceee38 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -2422,7 +2422,7 @@ static void blkfront_connect(struct blkfront_info *info)
for (i = 0; i < info->nr_rings; i++)
kick_pending_request_queues(&info->rinfo[i]);
- device_add_disk(&info->xbdev->dev, info->gd, NULL);
+ device_add_disk(&info->xbdev->dev, info->gd);
info->is_ready = 1;
return;
diff --git a/drivers/block/zram/Kconfig b/drivers/block/zram/Kconfig
index 6352357..99a2c60 100644
--- a/drivers/block/zram/Kconfig
+++ b/drivers/block/zram/Kconfig
@@ -16,7 +16,7 @@
See Documentation/blockdev/zram.txt for more information.
config ZRAM_WRITEBACK
- bool "Write back incompressible page to backing device"
+ bool "Write back incompressible or idle page to backing device"
depends on ZRAM
default n
help
@@ -25,6 +25,9 @@
For this feature, admin should set up backing device via
/sys/block/zramX/backing_dev.
+ With /sys/block/zramX/{idle,writeback}, application could ask
+ idle page's writeback to the backing device to save in memory.
+
See Documentation/blockdev/zram.txt for more information.
config ZRAM_MEMORY_TRACKING
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 104206a..27aae2d 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -52,20 +52,23 @@ static unsigned int num_devices = 1;
static size_t huge_class_size;
static void zram_free_page(struct zram *zram, size_t index);
+static int zram_bvec_read(struct zram *zram, struct bio_vec *bvec,
+ u32 index, int offset, struct bio *bio);
+
static int zram_slot_trylock(struct zram *zram, u32 index)
{
- return bit_spin_trylock(ZRAM_LOCK, &zram->table[index].value);
+ return bit_spin_trylock(ZRAM_LOCK, &zram->table[index].flags);
}
static void zram_slot_lock(struct zram *zram, u32 index)
{
- bit_spin_lock(ZRAM_LOCK, &zram->table[index].value);
+ bit_spin_lock(ZRAM_LOCK, &zram->table[index].flags);
}
static void zram_slot_unlock(struct zram *zram, u32 index)
{
- bit_spin_unlock(ZRAM_LOCK, &zram->table[index].value);
+ bit_spin_unlock(ZRAM_LOCK, &zram->table[index].flags);
}
static inline bool init_done(struct zram *zram)
@@ -73,13 +76,6 @@ static inline bool init_done(struct zram *zram)
return zram->disksize;
}
-static inline bool zram_allocated(struct zram *zram, u32 index)
-{
-
- return (zram->table[index].value >> (ZRAM_FLAG_SHIFT + 1)) ||
- zram->table[index].handle;
-}
-
static inline struct zram *dev_to_zram(struct device *dev)
{
return (struct zram *)dev_to_disk(dev)->private_data;
@@ -99,19 +95,19 @@ static void zram_set_handle(struct zram *zram, u32 index, unsigned long handle)
static bool zram_test_flag(struct zram *zram, u32 index,
enum zram_pageflags flag)
{
- return zram->table[index].value & BIT(flag);
+ return zram->table[index].flags & BIT(flag);
}
static void zram_set_flag(struct zram *zram, u32 index,
enum zram_pageflags flag)
{
- zram->table[index].value |= BIT(flag);
+ zram->table[index].flags |= BIT(flag);
}
static void zram_clear_flag(struct zram *zram, u32 index,
enum zram_pageflags flag)
{
- zram->table[index].value &= ~BIT(flag);
+ zram->table[index].flags &= ~BIT(flag);
}
static inline void zram_set_element(struct zram *zram, u32 index,
@@ -127,15 +123,22 @@ static unsigned long zram_get_element(struct zram *zram, u32 index)
static size_t zram_get_obj_size(struct zram *zram, u32 index)
{
- return zram->table[index].value & (BIT(ZRAM_FLAG_SHIFT) - 1);
+ return zram->table[index].flags & (BIT(ZRAM_FLAG_SHIFT) - 1);
}
static void zram_set_obj_size(struct zram *zram,
u32 index, size_t size)
{
- unsigned long flags = zram->table[index].value >> ZRAM_FLAG_SHIFT;
+ unsigned long flags = zram->table[index].flags >> ZRAM_FLAG_SHIFT;
- zram->table[index].value = (flags << ZRAM_FLAG_SHIFT) | size;
+ zram->table[index].flags = (flags << ZRAM_FLAG_SHIFT) | size;
+}
+
+static inline bool zram_allocated(struct zram *zram, u32 index)
+{
+ return zram_get_obj_size(zram, index) ||
+ zram_test_flag(zram, index, ZRAM_SAME) ||
+ zram_test_flag(zram, index, ZRAM_WB);
}
#if PAGE_SIZE != 4096
@@ -281,17 +284,125 @@ static ssize_t mem_used_max_store(struct device *dev,
return len;
}
-#ifdef CONFIG_ZRAM_WRITEBACK
-static bool zram_wb_enabled(struct zram *zram)
+static ssize_t idle_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t len)
{
- return zram->backing_dev;
+ struct zram *zram = dev_to_zram(dev);
+ unsigned long nr_pages = zram->disksize >> PAGE_SHIFT;
+ int index;
+ char mode_buf[8];
+ ssize_t sz;
+
+ sz = strscpy(mode_buf, buf, sizeof(mode_buf));
+ if (sz <= 0)
+ return -EINVAL;
+
+ /* ignore trailing new line */
+ if (mode_buf[sz - 1] == '\n')
+ mode_buf[sz - 1] = 0x00;
+
+ if (strcmp(mode_buf, "all"))
+ return -EINVAL;
+
+ down_read(&zram->init_lock);
+ if (!init_done(zram)) {
+ up_read(&zram->init_lock);
+ return -EINVAL;
+ }
+
+ for (index = 0; index < nr_pages; index++) {
+ /*
+ * Do not mark ZRAM_UNDER_WB slot as ZRAM_IDLE to close race.
+ * See the comment in writeback_store.
+ */
+ zram_slot_lock(zram, index);
+ if (zram_allocated(zram, index) &&
+ !zram_test_flag(zram, index, ZRAM_UNDER_WB))
+ zram_set_flag(zram, index, ZRAM_IDLE);
+ zram_slot_unlock(zram, index);
+ }
+
+ up_read(&zram->init_lock);
+
+ return len;
+}
+
+#ifdef CONFIG_ZRAM_WRITEBACK
+static ssize_t writeback_limit_enable_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t len)
+{
+ struct zram *zram = dev_to_zram(dev);
+ u64 val;
+ ssize_t ret = -EINVAL;
+
+ if (kstrtoull(buf, 10, &val))
+ return ret;
+
+ down_read(&zram->init_lock);
+ spin_lock(&zram->wb_limit_lock);
+ zram->wb_limit_enable = val;
+ spin_unlock(&zram->wb_limit_lock);
+ up_read(&zram->init_lock);
+ ret = len;
+
+ return ret;
+}
+
+static ssize_t writeback_limit_enable_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ bool val;
+ struct zram *zram = dev_to_zram(dev);
+
+ down_read(&zram->init_lock);
+ spin_lock(&zram->wb_limit_lock);
+ val = zram->wb_limit_enable;
+ spin_unlock(&zram->wb_limit_lock);
+ up_read(&zram->init_lock);
+
+ return scnprintf(buf, PAGE_SIZE, "%d\n", val);
+}
+
+static ssize_t writeback_limit_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t len)
+{
+ struct zram *zram = dev_to_zram(dev);
+ u64 val;
+ ssize_t ret = -EINVAL;
+
+ if (kstrtoull(buf, 10, &val))
+ return ret;
+
+ down_read(&zram->init_lock);
+ spin_lock(&zram->wb_limit_lock);
+ zram->bd_wb_limit = val;
+ spin_unlock(&zram->wb_limit_lock);
+ up_read(&zram->init_lock);
+ ret = len;
+
+ return ret;
+}
+
+static ssize_t writeback_limit_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ u64 val;
+ struct zram *zram = dev_to_zram(dev);
+
+ down_read(&zram->init_lock);
+ spin_lock(&zram->wb_limit_lock);
+ val = zram->bd_wb_limit;
+ spin_unlock(&zram->wb_limit_lock);
+ up_read(&zram->init_lock);
+
+ return scnprintf(buf, PAGE_SIZE, "%llu\n", val);
}
static void reset_bdev(struct zram *zram)
{
struct block_device *bdev;
- if (!zram_wb_enabled(zram))
+ if (!zram->backing_dev)
return;
bdev = zram->bdev;
@@ -448,7 +559,7 @@ static ssize_t backing_dev_store(struct device *dev,
return err;
}
-static unsigned long get_entry_bdev(struct zram *zram)
+static unsigned long alloc_block_bdev(struct zram *zram)
{
unsigned long blk_idx = 1;
retry:
@@ -460,15 +571,17 @@ static unsigned long get_entry_bdev(struct zram *zram)
if (test_and_set_bit(blk_idx, zram->bitmap))
goto retry;
+ atomic64_inc(&zram->stats.bd_count);
return blk_idx;
}
-static void put_entry_bdev(struct zram *zram, unsigned long entry)
+static void free_block_bdev(struct zram *zram, unsigned long blk_idx)
{
int was_set;
- was_set = test_and_clear_bit(entry, zram->bitmap);
+ was_set = test_and_clear_bit(blk_idx, zram->bitmap);
WARN_ON_ONCE(!was_set);
+ atomic64_dec(&zram->stats.bd_count);
}
static void zram_page_end_io(struct bio *bio)
@@ -511,6 +624,172 @@ static int read_from_bdev_async(struct zram *zram, struct bio_vec *bvec,
return 1;
}
+#define HUGE_WRITEBACK 1
+#define IDLE_WRITEBACK 2
+
+static ssize_t writeback_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t len)
+{
+ struct zram *zram = dev_to_zram(dev);
+ unsigned long nr_pages = zram->disksize >> PAGE_SHIFT;
+ unsigned long index;
+ struct bio bio;
+ struct bio_vec bio_vec;
+ struct page *page;
+ ssize_t ret, sz;
+ char mode_buf[8];
+ int mode = -1;
+ unsigned long blk_idx = 0;
+
+ sz = strscpy(mode_buf, buf, sizeof(mode_buf));
+ if (sz <= 0)
+ return -EINVAL;
+
+ /* ignore trailing newline */
+ if (mode_buf[sz - 1] == '\n')
+ mode_buf[sz - 1] = 0x00;
+
+ if (!strcmp(mode_buf, "idle"))
+ mode = IDLE_WRITEBACK;
+ else if (!strcmp(mode_buf, "huge"))
+ mode = HUGE_WRITEBACK;
+
+ if (mode == -1)
+ return -EINVAL;
+
+ down_read(&zram->init_lock);
+ if (!init_done(zram)) {
+ ret = -EINVAL;
+ goto release_init_lock;
+ }
+
+ if (!zram->backing_dev) {
+ ret = -ENODEV;
+ goto release_init_lock;
+ }
+
+ page = alloc_page(GFP_KERNEL);
+ if (!page) {
+ ret = -ENOMEM;
+ goto release_init_lock;
+ }
+
+ for (index = 0; index < nr_pages; index++) {
+ struct bio_vec bvec;
+
+ bvec.bv_page = page;
+ bvec.bv_len = PAGE_SIZE;
+ bvec.bv_offset = 0;
+
+ spin_lock(&zram->wb_limit_lock);
+ if (zram->wb_limit_enable && !zram->bd_wb_limit) {
+ spin_unlock(&zram->wb_limit_lock);
+ ret = -EIO;
+ break;
+ }
+ spin_unlock(&zram->wb_limit_lock);
+
+ if (!blk_idx) {
+ blk_idx = alloc_block_bdev(zram);
+ if (!blk_idx) {
+ ret = -ENOSPC;
+ break;
+ }
+ }
+
+ zram_slot_lock(zram, index);
+ if (!zram_allocated(zram, index))
+ goto next;
+
+ if (zram_test_flag(zram, index, ZRAM_WB) ||
+ zram_test_flag(zram, index, ZRAM_SAME) ||
+ zram_test_flag(zram, index, ZRAM_UNDER_WB))
+ goto next;
+
+ if (mode == IDLE_WRITEBACK &&
+ !zram_test_flag(zram, index, ZRAM_IDLE))
+ goto next;
+ if (mode == HUGE_WRITEBACK &&
+ !zram_test_flag(zram, index, ZRAM_HUGE))
+ goto next;
+ /*
+ * Clearing ZRAM_UNDER_WB is duty of caller.
+ * IOW, zram_free_page never clear it.
+ */
+ zram_set_flag(zram, index, ZRAM_UNDER_WB);
+ /* Need for hugepage writeback racing */
+ zram_set_flag(zram, index, ZRAM_IDLE);
+ zram_slot_unlock(zram, index);
+ if (zram_bvec_read(zram, &bvec, index, 0, NULL)) {
+ zram_slot_lock(zram, index);
+ zram_clear_flag(zram, index, ZRAM_UNDER_WB);
+ zram_clear_flag(zram, index, ZRAM_IDLE);
+ zram_slot_unlock(zram, index);
+ continue;
+ }
+
+ bio_init(&bio, &bio_vec, 1);
+ bio_set_dev(&bio, zram->bdev);
+ bio.bi_iter.bi_sector = blk_idx * (PAGE_SIZE >> 9);
+ bio.bi_opf = REQ_OP_WRITE | REQ_SYNC;
+
+ bio_add_page(&bio, bvec.bv_page, bvec.bv_len,
+ bvec.bv_offset);
+ /*
+ * XXX: A single page IO would be inefficient for write
+ * but it would be not bad as starter.
+ */
+ ret = submit_bio_wait(&bio);
+ if (ret) {
+ zram_slot_lock(zram, index);
+ zram_clear_flag(zram, index, ZRAM_UNDER_WB);
+ zram_clear_flag(zram, index, ZRAM_IDLE);
+ zram_slot_unlock(zram, index);
+ continue;
+ }
+
+ atomic64_inc(&zram->stats.bd_writes);
+ /*
+ * We released zram_slot_lock so need to check if the slot was
+ * changed. If there is freeing for the slot, we can catch it
+ * easily by zram_allocated.
+ * A subtle case is the slot is freed/reallocated/marked as
+ * ZRAM_IDLE again. To close the race, idle_store doesn't
+ * mark ZRAM_IDLE once it found the slot was ZRAM_UNDER_WB.
+ * Thus, we could close the race by checking ZRAM_IDLE bit.
+ */
+ zram_slot_lock(zram, index);
+ if (!zram_allocated(zram, index) ||
+ !zram_test_flag(zram, index, ZRAM_IDLE)) {
+ zram_clear_flag(zram, index, ZRAM_UNDER_WB);
+ zram_clear_flag(zram, index, ZRAM_IDLE);
+ goto next;
+ }
+
+ zram_free_page(zram, index);
+ zram_clear_flag(zram, index, ZRAM_UNDER_WB);
+ zram_set_flag(zram, index, ZRAM_WB);
+ zram_set_element(zram, index, blk_idx);
+ blk_idx = 0;
+ atomic64_inc(&zram->stats.pages_stored);
+ spin_lock(&zram->wb_limit_lock);
+ if (zram->wb_limit_enable && zram->bd_wb_limit > 0)
+ zram->bd_wb_limit -= 1UL << (PAGE_SHIFT - 12);
+ spin_unlock(&zram->wb_limit_lock);
+next:
+ zram_slot_unlock(zram, index);
+ }
+
+ if (blk_idx)
+ free_block_bdev(zram, blk_idx);
+ ret = len;
+ __free_page(page);
+release_init_lock:
+ up_read(&zram->init_lock);
+
+ return ret;
+}
+
struct zram_work {
struct work_struct work;
struct zram *zram;
@@ -564,79 +843,21 @@ static int read_from_bdev_sync(struct zram *zram, struct bio_vec *bvec,
static int read_from_bdev(struct zram *zram, struct bio_vec *bvec,
unsigned long entry, struct bio *parent, bool sync)
{
+ atomic64_inc(&zram->stats.bd_reads);
if (sync)
return read_from_bdev_sync(zram, bvec, entry, parent);
else
return read_from_bdev_async(zram, bvec, entry, parent);
}
-
-static int write_to_bdev(struct zram *zram, struct bio_vec *bvec,
- u32 index, struct bio *parent,
- unsigned long *pentry)
-{
- struct bio *bio;
- unsigned long entry;
-
- bio = bio_alloc(GFP_ATOMIC, 1);
- if (!bio)
- return -ENOMEM;
-
- entry = get_entry_bdev(zram);
- if (!entry) {
- bio_put(bio);
- return -ENOSPC;
- }
-
- bio->bi_iter.bi_sector = entry * (PAGE_SIZE >> 9);
- bio_set_dev(bio, zram->bdev);
- if (!bio_add_page(bio, bvec->bv_page, bvec->bv_len,
- bvec->bv_offset)) {
- bio_put(bio);
- put_entry_bdev(zram, entry);
- return -EIO;
- }
-
- if (!parent) {
- bio->bi_opf = REQ_OP_WRITE | REQ_SYNC;
- bio->bi_end_io = zram_page_end_io;
- } else {
- bio->bi_opf = parent->bi_opf;
- bio_chain(bio, parent);
- }
-
- submit_bio(bio);
- *pentry = entry;
-
- return 0;
-}
-
-static void zram_wb_clear(struct zram *zram, u32 index)
-{
- unsigned long entry;
-
- zram_clear_flag(zram, index, ZRAM_WB);
- entry = zram_get_element(zram, index);
- zram_set_element(zram, index, 0);
- put_entry_bdev(zram, entry);
-}
-
#else
-static bool zram_wb_enabled(struct zram *zram) { return false; }
static inline void reset_bdev(struct zram *zram) {};
-static int write_to_bdev(struct zram *zram, struct bio_vec *bvec,
- u32 index, struct bio *parent,
- unsigned long *pentry)
-
-{
- return -EIO;
-}
-
static int read_from_bdev(struct zram *zram, struct bio_vec *bvec,
unsigned long entry, struct bio *parent, bool sync)
{
return -EIO;
}
-static void zram_wb_clear(struct zram *zram, u32 index) {}
+
+static void free_block_bdev(struct zram *zram, unsigned long blk_idx) {};
#endif
#ifdef CONFIG_ZRAM_MEMORY_TRACKING
@@ -655,14 +876,10 @@ static void zram_debugfs_destroy(void)
static void zram_accessed(struct zram *zram, u32 index)
{
+ zram_clear_flag(zram, index, ZRAM_IDLE);
zram->table[index].ac_time = ktime_get_boottime();
}
-static void zram_reset_access(struct zram *zram, u32 index)
-{
- zram->table[index].ac_time = 0;
-}
-
static ssize_t read_block_state(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
@@ -692,12 +909,13 @@ static ssize_t read_block_state(struct file *file, char __user *buf,
ts = ktime_to_timespec64(zram->table[index].ac_time);
copied = snprintf(kbuf + written, count,
- "%12zd %12lld.%06lu %c%c%c\n",
+ "%12zd %12lld.%06lu %c%c%c%c\n",
index, (s64)ts.tv_sec,
ts.tv_nsec / NSEC_PER_USEC,
zram_test_flag(zram, index, ZRAM_SAME) ? 's' : '.',
zram_test_flag(zram, index, ZRAM_WB) ? 'w' : '.',
- zram_test_flag(zram, index, ZRAM_HUGE) ? 'h' : '.');
+ zram_test_flag(zram, index, ZRAM_HUGE) ? 'h' : '.',
+ zram_test_flag(zram, index, ZRAM_IDLE) ? 'i' : '.');
if (count < copied) {
zram_slot_unlock(zram, index);
@@ -742,8 +960,10 @@ static void zram_debugfs_unregister(struct zram *zram)
#else
static void zram_debugfs_create(void) {};
static void zram_debugfs_destroy(void) {};
-static void zram_accessed(struct zram *zram, u32 index) {};
-static void zram_reset_access(struct zram *zram, u32 index) {};
+static void zram_accessed(struct zram *zram, u32 index)
+{
+ zram_clear_flag(zram, index, ZRAM_IDLE);
+};
static void zram_debugfs_register(struct zram *zram) {};
static void zram_debugfs_unregister(struct zram *zram) {};
#endif
@@ -880,6 +1100,26 @@ static ssize_t mm_stat_show(struct device *dev,
return ret;
}
+#ifdef CONFIG_ZRAM_WRITEBACK
+#define FOUR_K(x) ((x) * (1 << (PAGE_SHIFT - 12)))
+static ssize_t bd_stat_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct zram *zram = dev_to_zram(dev);
+ ssize_t ret;
+
+ down_read(&zram->init_lock);
+ ret = scnprintf(buf, PAGE_SIZE,
+ "%8llu %8llu %8llu\n",
+ FOUR_K((u64)atomic64_read(&zram->stats.bd_count)),
+ FOUR_K((u64)atomic64_read(&zram->stats.bd_reads)),
+ FOUR_K((u64)atomic64_read(&zram->stats.bd_writes)));
+ up_read(&zram->init_lock);
+
+ return ret;
+}
+#endif
+
static ssize_t debug_stat_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
@@ -900,6 +1140,9 @@ static ssize_t debug_stat_show(struct device *dev,
static DEVICE_ATTR_RO(io_stat);
static DEVICE_ATTR_RO(mm_stat);
+#ifdef CONFIG_ZRAM_WRITEBACK
+static DEVICE_ATTR_RO(bd_stat);
+#endif
static DEVICE_ATTR_RO(debug_stat);
static void zram_meta_free(struct zram *zram, u64 disksize)
@@ -944,17 +1187,21 @@ static void zram_free_page(struct zram *zram, size_t index)
{
unsigned long handle;
- zram_reset_access(zram, index);
+#ifdef CONFIG_ZRAM_MEMORY_TRACKING
+ zram->table[index].ac_time = 0;
+#endif
+ if (zram_test_flag(zram, index, ZRAM_IDLE))
+ zram_clear_flag(zram, index, ZRAM_IDLE);
if (zram_test_flag(zram, index, ZRAM_HUGE)) {
zram_clear_flag(zram, index, ZRAM_HUGE);
atomic64_dec(&zram->stats.huge_pages);
}
- if (zram_wb_enabled(zram) && zram_test_flag(zram, index, ZRAM_WB)) {
- zram_wb_clear(zram, index);
- atomic64_dec(&zram->stats.pages_stored);
- return;
+ if (zram_test_flag(zram, index, ZRAM_WB)) {
+ zram_clear_flag(zram, index, ZRAM_WB);
+ free_block_bdev(zram, zram_get_element(zram, index));
+ goto out;
}
/*
@@ -963,10 +1210,8 @@ static void zram_free_page(struct zram *zram, size_t index)
*/
if (zram_test_flag(zram, index, ZRAM_SAME)) {
zram_clear_flag(zram, index, ZRAM_SAME);
- zram_set_element(zram, index, 0);
atomic64_dec(&zram->stats.same_pages);
- atomic64_dec(&zram->stats.pages_stored);
- return;
+ goto out;
}
handle = zram_get_handle(zram, index);
@@ -977,10 +1222,12 @@ static void zram_free_page(struct zram *zram, size_t index)
atomic64_sub(zram_get_obj_size(zram, index),
&zram->stats.compr_data_size);
+out:
atomic64_dec(&zram->stats.pages_stored);
-
zram_set_handle(zram, index, 0);
zram_set_obj_size(zram, index, 0);
+ WARN_ON_ONCE(zram->table[index].flags &
+ ~(1UL << ZRAM_LOCK | 1UL << ZRAM_UNDER_WB));
}
static int __zram_bvec_read(struct zram *zram, struct page *page, u32 index,
@@ -991,24 +1238,20 @@ static int __zram_bvec_read(struct zram *zram, struct page *page, u32 index,
unsigned int size;
void *src, *dst;
- if (zram_wb_enabled(zram)) {
- zram_slot_lock(zram, index);
- if (zram_test_flag(zram, index, ZRAM_WB)) {
- struct bio_vec bvec;
+ zram_slot_lock(zram, index);
+ if (zram_test_flag(zram, index, ZRAM_WB)) {
+ struct bio_vec bvec;
- zram_slot_unlock(zram, index);
-
- bvec.bv_page = page;
- bvec.bv_len = PAGE_SIZE;
- bvec.bv_offset = 0;
- return read_from_bdev(zram, &bvec,
- zram_get_element(zram, index),
- bio, partial_io);
- }
zram_slot_unlock(zram, index);
+
+ bvec.bv_page = page;
+ bvec.bv_len = PAGE_SIZE;
+ bvec.bv_offset = 0;
+ return read_from_bdev(zram, &bvec,
+ zram_get_element(zram, index),
+ bio, partial_io);
}
- zram_slot_lock(zram, index);
handle = zram_get_handle(zram, index);
if (!handle || zram_test_flag(zram, index, ZRAM_SAME)) {
unsigned long value;
@@ -1093,7 +1336,6 @@ static int __zram_bvec_write(struct zram *zram, struct bio_vec *bvec,
struct page *page = bvec->bv_page;
unsigned long element = 0;
enum zram_pageflags flags = 0;
- bool allow_wb = true;
mem = kmap_atomic(page);
if (page_same_filled(mem, &element)) {
@@ -1118,21 +1360,8 @@ static int __zram_bvec_write(struct zram *zram, struct bio_vec *bvec,
return ret;
}
- if (unlikely(comp_len >= huge_class_size)) {
+ if (comp_len >= huge_class_size)
comp_len = PAGE_SIZE;
- if (zram_wb_enabled(zram) && allow_wb) {
- zcomp_stream_put(zram->comp);
- ret = write_to_bdev(zram, bvec, index, bio, &element);
- if (!ret) {
- flags = ZRAM_WB;
- ret = 1;
- goto out;
- }
- allow_wb = false;
- goto compress_again;
- }
- }
-
/*
* handle allocation has 2 paths:
* a) fast path is executed with preemption disabled (for
@@ -1616,10 +1845,14 @@ static DEVICE_ATTR_RO(initstate);
static DEVICE_ATTR_WO(reset);
static DEVICE_ATTR_WO(mem_limit);
static DEVICE_ATTR_WO(mem_used_max);
+static DEVICE_ATTR_WO(idle);
static DEVICE_ATTR_RW(max_comp_streams);
static DEVICE_ATTR_RW(comp_algorithm);
#ifdef CONFIG_ZRAM_WRITEBACK
static DEVICE_ATTR_RW(backing_dev);
+static DEVICE_ATTR_WO(writeback);
+static DEVICE_ATTR_RW(writeback_limit);
+static DEVICE_ATTR_RW(writeback_limit_enable);
#endif
static struct attribute *zram_disk_attrs[] = {
@@ -1629,13 +1862,20 @@ static struct attribute *zram_disk_attrs[] = {
&dev_attr_compact.attr,
&dev_attr_mem_limit.attr,
&dev_attr_mem_used_max.attr,
+ &dev_attr_idle.attr,
&dev_attr_max_comp_streams.attr,
&dev_attr_comp_algorithm.attr,
#ifdef CONFIG_ZRAM_WRITEBACK
&dev_attr_backing_dev.attr,
+ &dev_attr_writeback.attr,
+ &dev_attr_writeback_limit.attr,
+ &dev_attr_writeback_limit_enable.attr,
#endif
&dev_attr_io_stat.attr,
&dev_attr_mm_stat.attr,
+#ifdef CONFIG_ZRAM_WRITEBACK
+ &dev_attr_bd_stat.attr,
+#endif
&dev_attr_debug_stat.attr,
NULL,
};
@@ -1669,7 +1909,9 @@ static int zram_add(void)
device_id = ret;
init_rwsem(&zram->init_lock);
-
+#ifdef CONFIG_ZRAM_WRITEBACK
+ spin_lock_init(&zram->wb_limit_lock);
+#endif
queue = blk_alloc_queue(GFP_KERNEL);
if (!queue) {
pr_err("Error allocating disk queue for device %d\n",
@@ -1729,7 +1971,8 @@ static int zram_add(void)
zram->disk->queue->backing_dev_info->capabilities |=
(BDI_CAP_STABLE_WRITES | BDI_CAP_SYNCHRONOUS_IO);
- device_add_disk(NULL, zram->disk, zram_disk_attr_groups);
+ disk_to_dev(zram->disk)->groups = zram_disk_attr_groups;
+ add_disk(zram->disk);
strlcpy(zram->compressor, default_compressor, sizeof(zram->compressor));
@@ -1765,7 +2008,6 @@ static int zram_remove(struct zram *zram)
mutex_unlock(&bdev->bd_mutex);
zram_debugfs_unregister(zram);
-
/* Make sure all the pending I/O are finished */
fsync_bdev(bdev);
zram_reset_device(zram);
diff --git a/drivers/block/zram/zram_drv.h b/drivers/block/zram/zram_drv.h
index d1095df..f2fd46d 100644
--- a/drivers/block/zram/zram_drv.h
+++ b/drivers/block/zram/zram_drv.h
@@ -30,7 +30,7 @@
/*
- * The lower ZRAM_FLAG_SHIFT bits of table.value is for
+ * The lower ZRAM_FLAG_SHIFT bits of table.flags is for
* object size (excluding header), the higher bits is for
* zram_pageflags.
*
@@ -41,13 +41,15 @@
*/
#define ZRAM_FLAG_SHIFT 24
-/* Flags for zram pages (table[page_no].value) */
+/* Flags for zram pages (table[page_no].flags) */
enum zram_pageflags {
/* zram slot is locked */
ZRAM_LOCK = ZRAM_FLAG_SHIFT,
ZRAM_SAME, /* Page consists the same element */
ZRAM_WB, /* page is stored on backing_device */
+ ZRAM_UNDER_WB, /* page is under writeback */
ZRAM_HUGE, /* Incompressible page */
+ ZRAM_IDLE, /* not accessed page since last idle marking */
__NR_ZRAM_PAGEFLAGS,
};
@@ -60,7 +62,7 @@ struct zram_table_entry {
unsigned long handle;
unsigned long element;
};
- unsigned long value;
+ unsigned long flags;
#ifdef CONFIG_ZRAM_MEMORY_TRACKING
ktime_t ac_time;
#endif
@@ -80,6 +82,11 @@ struct zram_stats {
atomic_long_t max_used_pages; /* no. of maximum pages stored */
atomic64_t writestall; /* no. of write slow paths */
atomic64_t miss_free; /* no. of missed free */
+#ifdef CONFIG_ZRAM_WRITEBACK
+ atomic64_t bd_count; /* no. of pages in backing device */
+ atomic64_t bd_reads; /* no. of reads from backing device */
+ atomic64_t bd_writes; /* no. of writes from backing device */
+#endif
};
struct zram {
@@ -105,8 +112,11 @@ struct zram {
* zram is claimed so open request will be failed
*/
bool claim; /* Protected by bdev->bd_mutex */
-#ifdef CONFIG_ZRAM_WRITEBACK
struct file *backing_dev;
+#ifdef CONFIG_ZRAM_WRITEBACK
+ spinlock_t wb_limit_lock;
+ bool wb_limit_enable;
+ u64 bd_wb_limit;
struct block_device *bdev;
unsigned int old_block_size;
unsigned long *bitmap;
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 1df9cb8..3bc53a8 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -568,3 +568,12 @@
has not installed a hidden back door to compromise the CPU's
random number generation facilities. This can also be configured
at boot with "random.trust_cpu=on/off".
+
+config RANDOM_TRUST_BOOTLOADER
+ bool "Trust the bootloader to initialize Linux's CRNG"
+ help
+ Some bootloaders can provide entropy to increase the kernel's initial
+ device randomness. Say Y here to assume the entropy provided by the
+ booloader is trustworthy so it will be added to the kernel's entropy
+ pool. Otherwise, say N here so it will be regarded as device input that
+ only mixes the entropy pool.
\ No newline at end of file
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 297a716..62c14ef 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -101,15 +101,13 @@
* Exported interfaces ---- output
* ===============================
*
- * There are three exported interfaces; the first is one designed to
- * be used from within the kernel:
+ * There are four exported interfaces; two for use within the kernel,
+ * and two or use from userspace.
*
- * void get_random_bytes(void *buf, int nbytes);
+ * Exported interfaces ---- userspace output
+ * -----------------------------------------
*
- * This interface will return the requested number of random bytes,
- * and place it in the requested buffer.
- *
- * The two other interfaces are two character devices /dev/random and
+ * The userspace interfaces are two character devices /dev/random and
* /dev/urandom. /dev/random is suitable for use when very high
* quality randomness is desired (for example, for key generation or
* one-time pads), as it will only return a maximum of the number of
@@ -122,6 +120,77 @@
* this will result in random numbers that are merely cryptographically
* strong. For many applications, however, this is acceptable.
*
+ * Exported interfaces ---- kernel output
+ * --------------------------------------
+ *
+ * The primary kernel interface is
+ *
+ * void get_random_bytes(void *buf, int nbytes);
+ *
+ * This interface will return the requested number of random bytes,
+ * and place it in the requested buffer. This is equivalent to a
+ * read from /dev/urandom.
+ *
+ * For less critical applications, there are the functions:
+ *
+ * u32 get_random_u32()
+ * u64 get_random_u64()
+ * unsigned int get_random_int()
+ * unsigned long get_random_long()
+ *
+ * These are produced by a cryptographic RNG seeded from get_random_bytes,
+ * and so do not deplete the entropy pool as much. These are recommended
+ * for most in-kernel operations *if the result is going to be stored in
+ * the kernel*.
+ *
+ * Specifically, the get_random_int() family do not attempt to do
+ * "anti-backtracking". If you capture the state of the kernel (e.g.
+ * by snapshotting the VM), you can figure out previous get_random_int()
+ * return values. But if the value is stored in the kernel anyway,
+ * this is not a problem.
+ *
+ * It *is* safe to expose get_random_int() output to attackers (e.g. as
+ * network cookies); given outputs 1..n, it's not feasible to predict
+ * outputs 0 or n+1. The only concern is an attacker who breaks into
+ * the kernel later; the get_random_int() engine is not reseeded as
+ * often as the get_random_bytes() one.
+ *
+ * get_random_bytes() is needed for keys that need to stay secret after
+ * they are erased from the kernel. For example, any key that will
+ * be wrapped and stored encrypted. And session encryption keys: we'd
+ * like to know that after the session is closed and the keys erased,
+ * the plaintext is unrecoverable to someone who recorded the ciphertext.
+ *
+ * But for network ports/cookies, stack canaries, PRNG seeds, address
+ * space layout randomization, session *authentication* keys, or other
+ * applications where the sensitive data is stored in the kernel in
+ * plaintext for as long as it's sensitive, the get_random_int() family
+ * is just fine.
+ *
+ * Consider ASLR. We want to keep the address space secret from an
+ * outside attacker while the process is running, but once the address
+ * space is torn down, it's of no use to an attacker any more. And it's
+ * stored in kernel data structures as long as it's alive, so worrying
+ * about an attacker's ability to extrapolate it from the get_random_int()
+ * CRNG is silly.
+ *
+ * Even some cryptographic keys are safe to generate with get_random_int().
+ * In particular, keys for SipHash are generally fine. Here, knowledge
+ * of the key authorizes you to do something to a kernel object (inject
+ * packets to a network connection, or flood a hash table), and the
+ * key is stored with the object being protected. Once it goes away,
+ * we no longer care if anyone knows the key.
+ *
+ * prandom_u32()
+ * -------------
+ *
+ * For even weaker applications, see the pseudorandom generator
+ * prandom_u32(), prandom_max(), and prandom_bytes(). If the random
+ * numbers aren't security-critical at all, these are *far* cheaper.
+ * Useful for self-tests, random error simulation, randomized backoffs,
+ * and any other application where you trust that nobody is trying to
+ * maliciously mess with you by guessing the "random" numbers.
+ *
* Exported interfaces ---- input
* ==============================
*
@@ -238,6 +307,8 @@
* Eastlake, Steve Crocker, and Jeff Schiller.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/utsname.h>
#include <linux/module.h>
#include <linux/kernel.h>
@@ -265,7 +336,7 @@
#include <linux/syscalls.h>
#include <linux/completion.h>
#include <linux/uuid.h>
-#include <crypto/chacha20.h>
+#include <crypto/chacha.h>
#include <asm/processor.h>
#include <linux/uaccess.h>
@@ -285,7 +356,6 @@
#define INPUT_POOL_WORDS (1 << (INPUT_POOL_SHIFT-5))
#define OUTPUT_POOL_SHIFT 10
#define OUTPUT_POOL_WORDS (1 << (OUTPUT_POOL_SHIFT-5))
-#define SEC_XFER_SIZE 512
#define EXTRACT_SIZE 10
@@ -295,19 +365,13 @@
* To allow fractional bits to be tracked, the entropy_count field is
* denominated in units of 1/8th bits.
*
- * 2*(ENTROPY_SHIFT + log2(poolbits)) must <= 31, or the multiply in
+ * 2*(ENTROPY_SHIFT + poolbitshift) must <= 31, or the multiply in
* credit_entropy_bits() needs to be 64 bits wide.
*/
#define ENTROPY_SHIFT 3
#define ENTROPY_BITS(r) ((r)->entropy_count >> ENTROPY_SHIFT)
/*
- * The minimum number of bits of entropy before we wake up a read on
- * /dev/random. Should be enough to do a significant reseed.
- */
-static int random_read_wakeup_bits = 64;
-
-/*
* If the entropy count falls under this number of bits, then we
* should wake up processes which are selecting or polling on write
* access to /dev/random.
@@ -359,50 +423,19 @@ static int random_write_wakeup_bits = 28 * OUTPUT_POOL_WORDS;
* polynomial which improves the resulting TGFSR polynomial to be
* irreducible, which we have made here.
*/
-static struct poolinfo {
- int poolbitshift, poolwords, poolbytes, poolbits, poolfracbits;
-#define S(x) ilog2(x)+5, (x), (x)*4, (x)*32, (x) << (ENTROPY_SHIFT+5)
+static const struct poolinfo {
+ int poolbitshift, poolwords, poolbytes, poolfracbits;
+#define S(x) ilog2(x)+5, (x), (x)*4, (x) << (ENTROPY_SHIFT+5)
int tap1, tap2, tap3, tap4, tap5;
} poolinfo_table[] = {
/* was: x^128 + x^103 + x^76 + x^51 +x^25 + x + 1 */
/* x^128 + x^104 + x^76 + x^51 +x^25 + x + 1 */
{ S(128), 104, 76, 51, 25, 1 },
- /* was: x^32 + x^26 + x^20 + x^14 + x^7 + x + 1 */
- /* x^32 + x^26 + x^19 + x^14 + x^7 + x + 1 */
- { S(32), 26, 19, 14, 7, 1 },
-#if 0
- /* x^2048 + x^1638 + x^1231 + x^819 + x^411 + x + 1 -- 115 */
- { S(2048), 1638, 1231, 819, 411, 1 },
-
- /* x^1024 + x^817 + x^615 + x^412 + x^204 + x + 1 -- 290 */
- { S(1024), 817, 615, 412, 204, 1 },
-
- /* x^1024 + x^819 + x^616 + x^410 + x^207 + x^2 + 1 -- 115 */
- { S(1024), 819, 616, 410, 207, 2 },
-
- /* x^512 + x^411 + x^308 + x^208 + x^104 + x + 1 -- 225 */
- { S(512), 411, 308, 208, 104, 1 },
-
- /* x^512 + x^409 + x^307 + x^206 + x^102 + x^2 + 1 -- 95 */
- { S(512), 409, 307, 206, 102, 2 },
- /* x^512 + x^409 + x^309 + x^205 + x^103 + x^2 + 1 -- 95 */
- { S(512), 409, 309, 205, 103, 2 },
-
- /* x^256 + x^205 + x^155 + x^101 + x^52 + x + 1 -- 125 */
- { S(256), 205, 155, 101, 52, 1 },
-
- /* x^128 + x^103 + x^78 + x^51 + x^27 + x^2 + 1 -- 70 */
- { S(128), 103, 78, 51, 27, 2 },
-
- /* x^64 + x^52 + x^39 + x^26 + x^14 + x + 1 -- 15 */
- { S(64), 52, 39, 26, 14, 1 },
-#endif
};
/*
* Static global variables
*/
-static DECLARE_WAIT_QUEUE_HEAD(random_read_wait);
static DECLARE_WAIT_QUEUE_HEAD(random_write_wait);
static struct fasync_struct *fasync;
@@ -415,7 +448,7 @@ struct crng_state {
spinlock_t lock;
};
-struct crng_state primary_crng = {
+static struct crng_state primary_crng = {
.lock = __SPIN_LOCK_UNLOCKED(primary_crng.lock),
};
@@ -431,11 +464,10 @@ static int crng_init = 0;
#define crng_ready() (likely(crng_init > 1))
static int crng_init_cnt = 0;
static unsigned long crng_global_init_time = 0;
-#define CRNG_INIT_CNT_THRESH (2*CHACHA20_KEY_SIZE)
-static void _extract_crng(struct crng_state *crng,
- __u8 out[CHACHA20_BLOCK_SIZE]);
+#define CRNG_INIT_CNT_THRESH (2*CHACHA_KEY_SIZE)
+static void _extract_crng(struct crng_state *crng, __u8 out[CHACHA_BLOCK_SIZE]);
static void _crng_backtrack_protect(struct crng_state *crng,
- __u8 tmp[CHACHA20_BLOCK_SIZE], int used);
+ __u8 tmp[CHACHA_BLOCK_SIZE], int used);
static void process_random_ready_list(void);
static void _get_random_bytes(void *buf, int nbytes);
@@ -462,16 +494,12 @@ struct entropy_store {
const struct poolinfo *poolinfo;
__u32 *pool;
const char *name;
- struct entropy_store *pull;
- struct work_struct push_work;
/* read-write data: */
- unsigned long last_pulled;
spinlock_t lock;
unsigned short add_ptr;
unsigned short input_rotate;
int entropy_count;
- int entropy_total;
unsigned int initialized:1;
unsigned int last_data_init:1;
__u8 last_data[EXTRACT_SIZE];
@@ -483,9 +511,7 @@ static ssize_t _extract_entropy(struct entropy_store *r, void *buf,
size_t nbytes, int fips);
static void crng_reseed(struct crng_state *crng, struct entropy_store *r);
-static void push_to_pool(struct work_struct *work);
static __u32 input_pool_data[INPUT_POOL_WORDS] __latent_entropy;
-static __u32 blocking_pool_data[OUTPUT_POOL_WORDS] __latent_entropy;
static struct entropy_store input_pool = {
.poolinfo = &poolinfo_table[0],
@@ -494,16 +520,6 @@ static struct entropy_store input_pool = {
.pool = input_pool_data
};
-static struct entropy_store blocking_pool = {
- .poolinfo = &poolinfo_table[1],
- .name = "blocking",
- .pull = &input_pool,
- .lock = __SPIN_LOCK_UNLOCKED(blocking_pool.lock),
- .pool = blocking_pool_data,
- .push_work = __WORK_INITIALIZER(blocking_pool.push_work,
- push_to_pool),
-};
-
static __u32 const twist_table[8] = {
0x00000000, 0x3b6e20c8, 0x76dc4190, 0x4db26158,
0xedb88320, 0xd6d6a3e8, 0x9b64c2b0, 0xa00ae278 };
@@ -644,7 +660,7 @@ static void process_random_ready_list(void)
*/
static void credit_entropy_bits(struct entropy_store *r, int nbits)
{
- int entropy_count, orig;
+ int entropy_count, orig, has_initialized = 0;
const int pool_size = r->poolinfo->poolfracbits;
int nfrac = nbits << ENTROPY_SHIFT;
@@ -692,53 +708,31 @@ static void credit_entropy_bits(struct entropy_store *r, int nbits)
} while (unlikely(entropy_count < pool_size-2 && pnfrac));
}
- if (unlikely(entropy_count < 0)) {
- pr_warn("random: negative entropy/overflow: pool %s count %d\n",
+ if (WARN_ON(entropy_count < 0)) {
+ pr_warn("negative entropy/overflow: pool %s count %d\n",
r->name, entropy_count);
- WARN_ON(1);
entropy_count = 0;
} else if (entropy_count > pool_size)
entropy_count = pool_size;
if (cmpxchg(&r->entropy_count, orig, entropy_count) != orig)
goto retry;
- r->entropy_total += nbits;
- if (!r->initialized && r->entropy_total > 128) {
+ if (has_initialized) {
r->initialized = 1;
- r->entropy_total = 0;
+ kill_fasync(&fasync, SIGIO, POLL_IN);
}
trace_credit_entropy_bits(r->name, nbits,
- entropy_count >> ENTROPY_SHIFT,
- r->entropy_total, _RET_IP_);
+ entropy_count >> ENTROPY_SHIFT, _RET_IP_);
if (r == &input_pool) {
int entropy_bits = entropy_count >> ENTROPY_SHIFT;
- if (crng_init < 2 && entropy_bits >= 128) {
+ if (crng_init < 2) {
+ if (entropy_bits < 128)
+ return;
crng_reseed(&primary_crng, r);
- entropy_bits = r->entropy_count >> ENTROPY_SHIFT;
- }
-
- /* should we wake readers? */
- if (entropy_bits >= random_read_wakeup_bits &&
- wq_has_sleeper(&random_read_wait)) {
- wake_up_interruptible(&random_read_wait);
- kill_fasync(&fasync, SIGIO, POLL_IN);
- }
- /* If the input pool is getting full, send some
- * entropy to the blocking pool until it is 75% full.
- */
- if (entropy_bits > random_write_wakeup_bits &&
- r->initialized &&
- r->entropy_total >= 2*random_read_wakeup_bits) {
- struct entropy_store *other = &blocking_pool;
-
- if (other->entropy_count <=
- 3 * other->poolinfo->poolfracbits / 4) {
- schedule_work(&other->push_work);
- r->entropy_total = 0;
- }
+ entropy_bits = ENTROPY_BITS(r);
}
}
}
@@ -811,7 +805,7 @@ static void crng_initialize(struct crng_state *crng)
invalidate_batched_entropy();
numa_crng_init();
crng_init = 2;
- pr_notice("random: crng done (trusting CPU's manufacturer)\n");
+ pr_notice("crng done (trusting CPU's manufacturer)\n");
}
crng->init_time = jiffies - CRNG_RESEED_INTERVAL - 1;
}
@@ -866,15 +860,14 @@ static int crng_fast_load(const char *cp, size_t len)
}
p = (unsigned char *) &primary_crng.state[4];
while (len > 0 && crng_init_cnt < CRNG_INIT_CNT_THRESH) {
- p[crng_init_cnt % CHACHA20_KEY_SIZE] ^= *cp;
+ p[crng_init_cnt % CHACHA_KEY_SIZE] ^= *cp;
cp++; crng_init_cnt++; len--;
}
spin_unlock_irqrestore(&primary_crng.lock, flags);
if (crng_init_cnt >= CRNG_INIT_CNT_THRESH) {
invalidate_batched_entropy();
crng_init = 1;
- wake_up_interruptible(&crng_init_wait);
- pr_notice("random: fast init done\n");
+ pr_notice("fast init done\n");
}
return 1;
}
@@ -898,7 +891,7 @@ static int crng_slow_load(const char *cp, size_t len)
unsigned long flags;
static unsigned char lfsr = 1;
unsigned char tmp;
- unsigned i, max = CHACHA20_KEY_SIZE;
+ unsigned i, max = CHACHA_KEY_SIZE;
const char * src_buf = cp;
char * dest_buf = (char *) &primary_crng.state[4];
@@ -916,8 +909,8 @@ static int crng_slow_load(const char *cp, size_t len)
lfsr >>= 1;
if (tmp & 1)
lfsr ^= 0xE1;
- tmp = dest_buf[i % CHACHA20_KEY_SIZE];
- dest_buf[i % CHACHA20_KEY_SIZE] ^= src_buf[i % len] ^ lfsr;
+ tmp = dest_buf[i % CHACHA_KEY_SIZE];
+ dest_buf[i % CHACHA_KEY_SIZE] ^= src_buf[i % len] ^ lfsr;
lfsr += (tmp << 3) | (tmp >> 5);
}
spin_unlock_irqrestore(&primary_crng.lock, flags);
@@ -929,7 +922,7 @@ static void crng_reseed(struct crng_state *crng, struct entropy_store *r)
unsigned long flags;
int i, num;
union {
- __u8 block[CHACHA20_BLOCK_SIZE];
+ __u8 block[CHACHA_BLOCK_SIZE];
__u32 key[8];
} buf;
@@ -940,7 +933,7 @@ static void crng_reseed(struct crng_state *crng, struct entropy_store *r)
} else {
_extract_crng(&primary_crng, buf.block);
_crng_backtrack_protect(&primary_crng, buf.block,
- CHACHA20_KEY_SIZE);
+ CHACHA_KEY_SIZE);
}
spin_lock_irqsave(&crng->lock, flags);
for (i = 0; i < 8; i++) {
@@ -959,16 +952,15 @@ static void crng_reseed(struct crng_state *crng, struct entropy_store *r)
crng_init = 2;
process_random_ready_list();
wake_up_interruptible(&crng_init_wait);
- pr_notice("random: crng init done\n");
+ kill_fasync(&fasync, SIGIO, POLL_IN);
+ pr_notice("crng init done\n");
if (unseeded_warning.missed) {
- pr_notice("random: %d get_random_xx warning(s) missed "
- "due to ratelimiting\n",
+ pr_notice("%d get_random_xx warning(s) missed due to ratelimiting\n",
unseeded_warning.missed);
unseeded_warning.missed = 0;
}
if (urandom_warning.missed) {
- pr_notice("random: %d urandom warning(s) missed "
- "due to ratelimiting\n",
+ pr_notice("%d urandom warning(s) missed due to ratelimiting\n",
urandom_warning.missed);
urandom_warning.missed = 0;
}
@@ -976,7 +968,7 @@ static void crng_reseed(struct crng_state *crng, struct entropy_store *r)
}
static void _extract_crng(struct crng_state *crng,
- __u8 out[CHACHA20_BLOCK_SIZE])
+ __u8 out[CHACHA_BLOCK_SIZE])
{
unsigned long v, flags;
@@ -993,7 +985,7 @@ static void _extract_crng(struct crng_state *crng,
spin_unlock_irqrestore(&crng->lock, flags);
}
-static void extract_crng(__u8 out[CHACHA20_BLOCK_SIZE])
+static void extract_crng(__u8 out[CHACHA_BLOCK_SIZE])
{
struct crng_state *crng = NULL;
@@ -1011,14 +1003,14 @@ static void extract_crng(__u8 out[CHACHA20_BLOCK_SIZE])
* enough) to mutate the CRNG key to provide backtracking protection.
*/
static void _crng_backtrack_protect(struct crng_state *crng,
- __u8 tmp[CHACHA20_BLOCK_SIZE], int used)
+ __u8 tmp[CHACHA_BLOCK_SIZE], int used)
{
unsigned long flags;
__u32 *s, *d;
int i;
used = round_up(used, sizeof(__u32));
- if (used + CHACHA20_KEY_SIZE > CHACHA20_BLOCK_SIZE) {
+ if (used + CHACHA_KEY_SIZE > CHACHA_BLOCK_SIZE) {
extract_crng(tmp);
used = 0;
}
@@ -1030,7 +1022,7 @@ static void _crng_backtrack_protect(struct crng_state *crng,
spin_unlock_irqrestore(&crng->lock, flags);
}
-static void crng_backtrack_protect(__u8 tmp[CHACHA20_BLOCK_SIZE], int used)
+static void crng_backtrack_protect(__u8 tmp[CHACHA_BLOCK_SIZE], int used)
{
struct crng_state *crng = NULL;
@@ -1045,8 +1037,8 @@ static void crng_backtrack_protect(__u8 tmp[CHACHA20_BLOCK_SIZE], int used)
static ssize_t extract_crng_user(void __user *buf, size_t nbytes)
{
- ssize_t ret = 0, i = CHACHA20_BLOCK_SIZE;
- __u8 tmp[CHACHA20_BLOCK_SIZE] __aligned(4);
+ ssize_t ret = 0, i = CHACHA_BLOCK_SIZE;
+ __u8 tmp[CHACHA_BLOCK_SIZE] __aligned(4);
int large_request = (nbytes > 256);
while (nbytes) {
@@ -1060,7 +1052,7 @@ static ssize_t extract_crng_user(void __user *buf, size_t nbytes)
}
extract_crng(tmp);
- i = min_t(int, nbytes, CHACHA20_BLOCK_SIZE);
+ i = min_t(int, nbytes, CHACHA_BLOCK_SIZE);
if (copy_to_user(buf, tmp, i)) {
ret = -EFAULT;
break;
@@ -1173,7 +1165,7 @@ static void add_timer_randomness(struct timer_rand_state *state, unsigned num)
/*
* delta is now minimum absolute delta.
* Round down by 1 bit on general principles,
- * and limit entropy entimate to 12 bits.
+ * and limit entropy estimate to 12 bits.
*/
credit_entropy_bits(r, min_t(int, fls(delta>>1), 11));
}
@@ -1317,57 +1309,6 @@ EXPORT_SYMBOL_GPL(add_disk_randomness);
*********************************************************************/
/*
- * This utility inline function is responsible for transferring entropy
- * from the primary pool to the secondary extraction pool. We make
- * sure we pull enough for a 'catastrophic reseed'.
- */
-static void _xfer_secondary_pool(struct entropy_store *r, size_t nbytes);
-static void xfer_secondary_pool(struct entropy_store *r, size_t nbytes)
-{
- if (!r->pull ||
- r->entropy_count >= (nbytes << (ENTROPY_SHIFT + 3)) ||
- r->entropy_count > r->poolinfo->poolfracbits)
- return;
-
- _xfer_secondary_pool(r, nbytes);
-}
-
-static void _xfer_secondary_pool(struct entropy_store *r, size_t nbytes)
-{
- __u32 tmp[OUTPUT_POOL_WORDS];
-
- int bytes = nbytes;
-
- /* pull at least as much as a wakeup */
- bytes = max_t(int, bytes, random_read_wakeup_bits / 8);
- /* but never more than the buffer size */
- bytes = min_t(int, bytes, sizeof(tmp));
-
- trace_xfer_secondary_pool(r->name, bytes * 8, nbytes * 8,
- ENTROPY_BITS(r), ENTROPY_BITS(r->pull));
- bytes = extract_entropy(r->pull, tmp, bytes,
- random_read_wakeup_bits / 8, 0);
- mix_pool_bytes(r, tmp, bytes);
- credit_entropy_bits(r, bytes*8);
-}
-
-/*
- * Used as a workqueue function so that when the input pool is getting
- * full, we can "spill over" some entropy to the output pools. That
- * way the output pools can store some of the excess entropy instead
- * of letting it go to waste.
- */
-static void push_to_pool(struct work_struct *work)
-{
- struct entropy_store *r = container_of(work, struct entropy_store,
- push_work);
- BUG_ON(!r);
- _xfer_secondary_pool(r, random_read_wakeup_bits/8);
- trace_push_to_pool(r->name, r->entropy_count >> ENTROPY_SHIFT,
- r->pull->entropy_count >> ENTROPY_SHIFT);
-}
-
-/*
* This function decides how many bytes to actually take from the
* given pool, and also debits the entropy count accordingly.
*/
@@ -1392,10 +1333,9 @@ static size_t account(struct entropy_store *r, size_t nbytes, int min,
if (ibytes < min)
ibytes = 0;
- if (unlikely(entropy_count < 0)) {
- pr_warn("random: negative entropy count: pool %s count %d\n",
+ if (WARN_ON(entropy_count < 0)) {
+ pr_warn("negative entropy count: pool %s count %d\n",
r->name, entropy_count);
- WARN_ON(1);
entropy_count = 0;
}
nfrac = ibytes << (ENTROPY_SHIFT + 3);
@@ -1408,8 +1348,7 @@ static size_t account(struct entropy_store *r, size_t nbytes, int min,
goto retry;
trace_debit_entropy(r->name, 8 * ibytes);
- if (ibytes &&
- (r->entropy_count >> ENTROPY_SHIFT) < random_write_wakeup_bits) {
+ if (ibytes && ENTROPY_BITS(r) < random_write_wakeup_bits) {
wake_up_interruptible(&random_write_wait);
kill_fasync(&fasync, SIGIO, POLL_OUT);
}
@@ -1530,7 +1469,6 @@ static ssize_t extract_entropy(struct entropy_store *r, void *buf,
spin_unlock_irqrestore(&r->lock, flags);
trace_extract_entropy(r->name, EXTRACT_SIZE,
ENTROPY_BITS(r), _RET_IP_);
- xfer_secondary_pool(r, EXTRACT_SIZE);
extract_buf(r, tmp);
spin_lock_irqsave(&r->lock, flags);
memcpy(r->last_data, tmp, EXTRACT_SIZE);
@@ -1539,55 +1477,11 @@ static ssize_t extract_entropy(struct entropy_store *r, void *buf,
}
trace_extract_entropy(r->name, nbytes, ENTROPY_BITS(r), _RET_IP_);
- xfer_secondary_pool(r, nbytes);
nbytes = account(r, nbytes, min, reserved);
return _extract_entropy(r, buf, nbytes, fips_enabled);
}
-/*
- * This function extracts randomness from the "entropy pool", and
- * returns it in a userspace buffer.
- */
-static ssize_t extract_entropy_user(struct entropy_store *r, void __user *buf,
- size_t nbytes)
-{
- ssize_t ret = 0, i;
- __u8 tmp[EXTRACT_SIZE];
- int large_request = (nbytes > 256);
-
- trace_extract_entropy_user(r->name, nbytes, ENTROPY_BITS(r), _RET_IP_);
- xfer_secondary_pool(r, nbytes);
- nbytes = account(r, nbytes, 0, 0);
-
- while (nbytes) {
- if (large_request && need_resched()) {
- if (signal_pending(current)) {
- if (ret == 0)
- ret = -ERESTARTSYS;
- break;
- }
- schedule();
- }
-
- extract_buf(r, tmp);
- i = min_t(int, nbytes, EXTRACT_SIZE);
- if (copy_to_user(buf, tmp, i)) {
- ret = -EFAULT;
- break;
- }
-
- nbytes -= i;
- buf += i;
- ret += i;
- }
-
- /* Wipe data just returned from memory */
- memzero_explicit(tmp, sizeof(tmp));
-
- return ret;
-}
-
#define warn_unseeded_randomness(previous) \
_warn_unseeded_randomness(__func__, (void *) _RET_IP_, (previous))
@@ -1625,14 +1519,14 @@ static void _warn_unseeded_randomness(const char *func_name, void *caller,
*/
static void _get_random_bytes(void *buf, int nbytes)
{
- __u8 tmp[CHACHA20_BLOCK_SIZE] __aligned(4);
+ __u8 tmp[CHACHA_BLOCK_SIZE] __aligned(4);
trace_get_random_bytes(nbytes, _RET_IP_);
- while (nbytes >= CHACHA20_BLOCK_SIZE) {
+ while (nbytes >= CHACHA_BLOCK_SIZE) {
extract_crng(buf);
- buf += CHACHA20_BLOCK_SIZE;
- nbytes -= CHACHA20_BLOCK_SIZE;
+ buf += CHACHA_BLOCK_SIZE;
+ nbytes -= CHACHA_BLOCK_SIZE;
}
if (nbytes > 0) {
@@ -1640,7 +1534,7 @@ static void _get_random_bytes(void *buf, int nbytes)
memcpy(buf, tmp, nbytes);
crng_backtrack_protect(tmp, nbytes);
} else
- crng_backtrack_protect(tmp, CHACHA20_BLOCK_SIZE);
+ crng_backtrack_protect(tmp, CHACHA_BLOCK_SIZE);
memzero_explicit(tmp, sizeof(tmp));
}
@@ -1847,13 +1741,12 @@ EXPORT_SYMBOL(get_random_bytes_arch);
* data into the pool to prepare it for use. The pool is not cleared
* as that can only decrease the entropy in the pool.
*/
-static void init_std_data(struct entropy_store *r)
+static void __init init_std_data(struct entropy_store *r)
{
int i;
ktime_t now = ktime_get_real();
unsigned long rv;
- r->last_pulled = jiffies;
mix_pool_bytes(r, &now, sizeof(now));
for (i = r->poolinfo->poolbytes; i > 0; i -= sizeof(rv)) {
if (!arch_get_random_seed_long(&rv) &&
@@ -1874,10 +1767,9 @@ static void init_std_data(struct entropy_store *r)
* take care not to overwrite the precious per platform data
* we were given.
*/
-static int rand_initialize(void)
+int __init rand_initialize(void)
{
init_std_data(&input_pool);
- init_std_data(&blocking_pool);
crng_initialize(&primary_crng);
crng_global_init_time = jiffies;
if (ratelimit_disable) {
@@ -1886,7 +1778,6 @@ static int rand_initialize(void)
}
return 0;
}
-early_initcall(rand_initialize);
#ifdef CONFIG_BLOCK
void rand_initialize_disk(struct gendisk *disk)
@@ -1906,40 +1797,15 @@ void rand_initialize_disk(struct gendisk *disk)
#endif
static ssize_t
-_random_read(int nonblock, char __user *buf, size_t nbytes)
+urandom_read_nowarn(struct file *file, char __user *buf, size_t nbytes,
+ loff_t *ppos)
{
- ssize_t n;
+ int ret;
- if (nbytes == 0)
- return 0;
-
- nbytes = min_t(size_t, nbytes, SEC_XFER_SIZE);
- while (1) {
- n = extract_entropy_user(&blocking_pool, buf, nbytes);
- if (n < 0)
- return n;
- trace_random_read(n*8, (nbytes-n)*8,
- ENTROPY_BITS(&blocking_pool),
- ENTROPY_BITS(&input_pool));
- if (n > 0)
- return n;
-
- /* Pool is (near) empty. Maybe wait and retry. */
- if (nonblock)
- return -EAGAIN;
-
- wait_event_interruptible(random_read_wait,
- ENTROPY_BITS(&input_pool) >=
- random_read_wakeup_bits);
- if (signal_pending(current))
- return -ERESTARTSYS;
- }
-}
-
-static ssize_t
-random_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
-{
- return _random_read(file->f_flags & O_NONBLOCK, buf, nbytes);
+ nbytes = min_t(size_t, nbytes, INT_MAX >> (ENTROPY_SHIFT + 3));
+ ret = extract_crng_user(buf, nbytes);
+ trace_urandom_read(8 * nbytes, 0, ENTROPY_BITS(&input_pool));
+ return ret;
}
static ssize_t
@@ -1947,22 +1813,29 @@ urandom_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
{
unsigned long flags;
static int maxwarn = 10;
- int ret;
if (!crng_ready() && maxwarn > 0) {
maxwarn--;
if (__ratelimit(&urandom_warning))
- printk(KERN_NOTICE "random: %s: uninitialized "
- "urandom read (%zd bytes read)\n",
- current->comm, nbytes);
+ pr_notice("%s: uninitialized urandom read (%zd bytes read)\n",
+ current->comm, nbytes);
spin_lock_irqsave(&primary_crng.lock, flags);
crng_init_cnt = 0;
spin_unlock_irqrestore(&primary_crng.lock, flags);
}
- nbytes = min_t(size_t, nbytes, INT_MAX >> (ENTROPY_SHIFT + 3));
- ret = extract_crng_user(buf, nbytes);
- trace_urandom_read(8 * nbytes, 0, ENTROPY_BITS(&input_pool));
- return ret;
+
+ return urandom_read_nowarn(file, buf, nbytes, ppos);
+}
+
+static ssize_t
+random_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
+{
+ int ret;
+
+ ret = wait_for_random_bytes();
+ if (ret != 0)
+ return ret;
+ return urandom_read_nowarn(file, buf, nbytes, ppos);
}
static __poll_t
@@ -1970,10 +1843,10 @@ random_poll(struct file *file, poll_table * wait)
{
__poll_t mask;
- poll_wait(file, &random_read_wait, wait);
+ poll_wait(file, &crng_init_wait, wait);
poll_wait(file, &random_write_wait, wait);
mask = 0;
- if (ENTROPY_BITS(&input_pool) >= random_read_wakeup_bits)
+ if (crng_ready())
mask |= EPOLLIN | EPOLLRDNORM;
if (ENTROPY_BITS(&input_pool) < random_write_wakeup_bits)
mask |= EPOLLOUT | EPOLLWRNORM;
@@ -2064,7 +1937,6 @@ static long random_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
input_pool.entropy_count = 0;
- blocking_pool.entropy_count = 0;
return 0;
case RNDRESEEDCRNG:
if (!capable(CAP_SYS_ADMIN))
@@ -2106,23 +1978,27 @@ SYSCALL_DEFINE3(getrandom, char __user *, buf, size_t, count,
{
int ret;
- if (flags & ~(GRND_NONBLOCK|GRND_RANDOM))
+ if (flags & ~(GRND_NONBLOCK|GRND_RANDOM|GRND_INSECURE))
+ return -EINVAL;
+
+ /*
+ * Requesting insecure and blocking randomness at the same time makes
+ * no sense.
+ */
+ if ((flags & (GRND_INSECURE|GRND_RANDOM)) == (GRND_INSECURE|GRND_RANDOM))
return -EINVAL;
if (count > INT_MAX)
count = INT_MAX;
- if (flags & GRND_RANDOM)
- return _random_read(flags & GRND_NONBLOCK, buf, count);
-
- if (!crng_ready()) {
+ if (!(flags & GRND_INSECURE) && !crng_ready()) {
if (flags & GRND_NONBLOCK)
return -EAGAIN;
ret = wait_for_random_bytes();
if (unlikely(ret))
return ret;
}
- return urandom_read(NULL, buf, count, NULL);
+ return urandom_read_nowarn(NULL, buf, count, NULL);
}
/********************************************************************
@@ -2135,8 +2011,7 @@ SYSCALL_DEFINE3(getrandom, char __user *, buf, size_t, count,
#include <linux/sysctl.h>
-static int min_read_thresh = 8, min_write_thresh;
-static int max_read_thresh = OUTPUT_POOL_WORDS * 32;
+static int min_write_thresh;
static int max_write_thresh = INPUT_POOL_WORDS * 32;
static int random_min_urandom_seed = 60;
static char sysctl_bootid[16];
@@ -2212,15 +2087,6 @@ struct ctl_table random_table[] = {
.data = &input_pool.entropy_count,
},
{
- .procname = "read_wakeup_threshold",
- .data = &random_read_wakeup_bits,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = proc_dointvec_minmax,
- .extra1 = &min_read_thresh,
- .extra2 = &max_read_thresh,
- },
- {
.procname = "write_wakeup_threshold",
.data = &random_write_wakeup_bits,
.maxlen = sizeof(int),
@@ -2271,8 +2137,8 @@ struct ctl_table random_table[] = {
struct batched_entropy {
union {
- u64 entropy_u64[CHACHA20_BLOCK_SIZE / sizeof(u64)];
- u32 entropy_u32[CHACHA20_BLOCK_SIZE / sizeof(u32)];
+ u64 entropy_u64[CHACHA_BLOCK_SIZE / sizeof(u64)];
+ u32 entropy_u32[CHACHA_BLOCK_SIZE / sizeof(u32)];
};
unsigned int position;
spinlock_t batch_lock;
@@ -2416,3 +2282,17 @@ void add_hwgenerator_randomness(const char *buffer, size_t count,
credit_entropy_bits(poolp, entropy);
}
EXPORT_SYMBOL_GPL(add_hwgenerator_randomness);
+
+/* Handle random seed passed by bootloader.
+ * If the seed is trustworthy, it would be regarded as hardware RNGs. Otherwise
+ * it would be regarded as device data.
+ * The decision is controlled by CONFIG_RANDOM_TRUST_BOOTLOADER.
+ */
+void add_bootloader_randomness(const void *buf, unsigned int size)
+{
+ if (IS_ENABLED(CONFIG_RANDOM_TRUST_BOOTLOADER))
+ add_hwgenerator_randomness(buf, size, size * 8);
+ else
+ add_device_randomness(buf, size);
+}
+EXPORT_SYMBOL_GPL(add_bootloader_randomness);
\ No newline at end of file
diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig
index 18c81cb..4819874 100644
--- a/drivers/char/tpm/Kconfig
+++ b/drivers/char/tpm/Kconfig
@@ -157,7 +157,6 @@
config TCG_VTPM_PROXY
tristate "VTPM Proxy Interface"
depends on TCG_TPM
- select ANON_INODES
---help---
This driver proxies for an emulated TPM (vTPM) running in userspace.
A device /dev/vtpmx is provided that creates a device pair
diff --git a/drivers/clk/at91/clk-generated.c b/drivers/clk/at91/clk-generated.c
index ea23002..66c7dde 100644
--- a/drivers/clk/at91/clk-generated.c
+++ b/drivers/clk/at91/clk-generated.c
@@ -288,7 +288,7 @@ at91_clk_register_generated(struct regmap *regmap, spinlock_t *lock,
const struct clk_range *range)
{
struct clk_generated *gck;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk_hw *hw;
int ret;
diff --git a/drivers/clk/at91/clk-h32mx.c b/drivers/clk/at91/clk-h32mx.c
index e0daa4a..7156ce2 100644
--- a/drivers/clk/at91/clk-h32mx.c
+++ b/drivers/clk/at91/clk-h32mx.c
@@ -89,7 +89,7 @@ static const struct clk_ops h32mx_ops = {
static void __init of_sama5d4_clk_h32mx_setup(struct device_node *np)
{
struct clk_sama5d4_h32mx *h32mxclk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
const char *parent_name;
struct regmap *regmap;
int ret;
diff --git a/drivers/clk/at91/clk-main.c b/drivers/clk/at91/clk-main.c
index 2e7da9b..9e5b73c 100644
--- a/drivers/clk/at91/clk-main.c
+++ b/drivers/clk/at91/clk-main.c
@@ -139,7 +139,7 @@ at91_clk_register_main_osc(struct regmap *regmap,
bool bypass)
{
struct clk_main_osc *osc;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk_hw *hw;
int ret;
@@ -285,7 +285,7 @@ at91_clk_register_main_rc_osc(struct regmap *regmap,
u32 frequency, u32 accuracy)
{
struct clk_main_rc_osc *osc;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk_hw *hw;
int ret;
@@ -416,7 +416,7 @@ at91_clk_register_rm9200_main(struct regmap *regmap,
const char *parent_name)
{
struct clk_rm9200_main *clkmain;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk_hw *hw;
int ret;
@@ -560,7 +560,7 @@ at91_clk_register_sam9x5_main(struct regmap *regmap,
int num_parents)
{
struct clk_sam9x5_main *clkmain;
- struct clk_init_data init;
+ struct clk_init_data init = {};
unsigned int status;
struct clk_hw *hw;
int ret;
diff --git a/drivers/clk/at91/clk-master.c b/drivers/clk/at91/clk-master.c
index e9cba9f..1a2a10a 100644
--- a/drivers/clk/at91/clk-master.c
+++ b/drivers/clk/at91/clk-master.c
@@ -128,7 +128,7 @@ at91_clk_register_master(struct regmap *regmap,
const struct clk_master_characteristics *characteristics)
{
struct clk_master *master;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk_hw *hw;
int ret;
diff --git a/drivers/clk/at91/clk-peripheral.c b/drivers/clk/at91/clk-peripheral.c
index 7701183..0b49dd7 100644
--- a/drivers/clk/at91/clk-peripheral.c
+++ b/drivers/clk/at91/clk-peripheral.c
@@ -109,7 +109,7 @@ at91_clk_register_peripheral(struct regmap *regmap, const char *name,
const char *parent_name, u32 id)
{
struct clk_peripheral *periph;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk_hw *hw;
int ret;
@@ -337,7 +337,7 @@ at91_clk_register_sam9x5_peripheral(struct regmap *regmap, spinlock_t *lock,
u32 id, const struct clk_range *range)
{
struct clk_sam9x5_peripheral *periph;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk_hw *hw;
int ret;
diff --git a/drivers/clk/at91/clk-pll.c b/drivers/clk/at91/clk-pll.c
index dc7fbc7..779fe0b 100644
--- a/drivers/clk/at91/clk-pll.c
+++ b/drivers/clk/at91/clk-pll.c
@@ -296,7 +296,7 @@ at91_clk_register_pll(struct regmap *regmap, const char *name,
{
struct clk_pll *pll;
struct clk_hw *hw;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int offset = PLL_REG(id);
unsigned int pllr;
int ret;
diff --git a/drivers/clk/at91/clk-plldiv.c b/drivers/clk/at91/clk-plldiv.c
index b4afaf2..0ec1a36 100644
--- a/drivers/clk/at91/clk-plldiv.c
+++ b/drivers/clk/at91/clk-plldiv.c
@@ -81,7 +81,7 @@ at91_clk_register_plldiv(struct regmap *regmap, const char *name,
{
struct clk_plldiv *plldiv;
struct clk_hw *hw;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
plldiv = kzalloc(sizeof(*plldiv), GFP_KERNEL);
diff --git a/drivers/clk/at91/clk-programmable.c b/drivers/clk/at91/clk-programmable.c
index 0e6aab1..cdf25974 100644
--- a/drivers/clk/at91/clk-programmable.c
+++ b/drivers/clk/at91/clk-programmable.c
@@ -178,7 +178,7 @@ at91_clk_register_programmable(struct regmap *regmap,
{
struct clk_programmable *prog;
struct clk_hw *hw;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
if (id > PROG_ID_MAX)
diff --git a/drivers/clk/at91/clk-slow.c b/drivers/clk/at91/clk-slow.c
index 560a8b9..ade9ee1 100644
--- a/drivers/clk/at91/clk-slow.c
+++ b/drivers/clk/at91/clk-slow.c
@@ -48,7 +48,7 @@ at91_clk_register_sam9260_slow(struct regmap *regmap,
{
struct clk_sam9260_slow *slowck;
struct clk_hw *hw;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
if (!name)
diff --git a/drivers/clk/at91/clk-smd.c b/drivers/clk/at91/clk-smd.c
index 965c662..3a415d0 100644
--- a/drivers/clk/at91/clk-smd.c
+++ b/drivers/clk/at91/clk-smd.c
@@ -117,7 +117,7 @@ at91sam9x5_clk_register_smd(struct regmap *regmap, const char *name,
{
struct at91sam9x5_clk_smd *smd;
struct clk_hw *hw;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
smd = kzalloc(sizeof(*smd), GFP_KERNEL);
diff --git a/drivers/clk/at91/clk-system.c b/drivers/clk/at91/clk-system.c
index 86a3680..8b3ca21 100644
--- a/drivers/clk/at91/clk-system.c
+++ b/drivers/clk/at91/clk-system.c
@@ -94,7 +94,7 @@ at91_clk_register_system(struct regmap *regmap, const char *name,
{
struct clk_system *sys;
struct clk_hw *hw;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
if (!parent_name || id > SYSTEM_MAX_ID)
diff --git a/drivers/clk/at91/clk-usb.c b/drivers/clk/at91/clk-usb.c
index 6fac638..0611cf5 100644
--- a/drivers/clk/at91/clk-usb.c
+++ b/drivers/clk/at91/clk-usb.c
@@ -201,7 +201,7 @@ at91sam9x5_clk_register_usb(struct regmap *regmap, const char *name,
{
struct at91sam9x5_clk_usb *usb;
struct clk_hw *hw;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
usb = kzalloc(sizeof(*usb), GFP_KERNEL);
@@ -234,7 +234,7 @@ at91sam9n12_clk_register_usb(struct regmap *regmap, const char *name,
{
struct at91sam9x5_clk_usb *usb;
struct clk_hw *hw;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
usb = kzalloc(sizeof(*usb), GFP_KERNEL);
@@ -351,7 +351,7 @@ at91rm9200_clk_register_usb(struct regmap *regmap, const char *name,
{
struct at91rm9200_clk_usb *usb;
struct clk_hw *hw;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
usb = kzalloc(sizeof(*usb), GFP_KERNEL);
diff --git a/drivers/clk/at91/clk-utmi.c b/drivers/clk/at91/clk-utmi.c
index cd8d689..e4dc837 100644
--- a/drivers/clk/at91/clk-utmi.c
+++ b/drivers/clk/at91/clk-utmi.c
@@ -131,7 +131,7 @@ at91_clk_register_utmi(struct regmap *regmap_pmc, struct regmap *regmap_sfr,
{
struct clk_utmi *utmi;
struct clk_hw *hw;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
utmi = kzalloc(sizeof(*utmi), GFP_KERNEL);
diff --git a/drivers/clk/at91/sckc.c b/drivers/clk/at91/sckc.c
index 43ba2a8..26a58df 100644
--- a/drivers/clk/at91/sckc.c
+++ b/drivers/clk/at91/sckc.c
@@ -121,7 +121,7 @@ at91_clk_register_slow_osc(void __iomem *sckcr,
{
struct clk_slow_osc *osc;
struct clk_hw *hw;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
if (!sckcr || !name || !parent_name)
@@ -240,7 +240,7 @@ at91_clk_register_slow_rc_osc(void __iomem *sckcr,
{
struct clk_slow_rc_osc *osc;
struct clk_hw *hw;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
if (!sckcr || !name)
@@ -344,7 +344,7 @@ at91_clk_register_sam9x5_slow(void __iomem *sckcr,
{
struct clk_sam9x5_slow *slowck;
struct clk_hw *hw;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
if (!sckcr || !name || !parent_names || !num_parents)
@@ -478,7 +478,7 @@ static void __init of_sama5d4_sckc_setup(struct device_node *np)
void __iomem *regbase = of_iomap(np, 0);
struct clk_hw *hw;
struct clk_sama5d4_slow_osc *osc;
- struct clk_init_data init;
+ struct clk_init_data init = {};
const char *xtal_name;
const char *parent_names[2] = { "slow_rc_osc", "slow_osc" };
bool bypass;
diff --git a/drivers/clk/axs10x/i2s_pll_clock.c b/drivers/clk/axs10x/i2s_pll_clock.c
index 02d3bcd..f2a2330 100644
--- a/drivers/clk/axs10x/i2s_pll_clock.c
+++ b/drivers/clk/axs10x/i2s_pll_clock.c
@@ -170,7 +170,7 @@ static int i2s_pll_clk_probe(struct platform_device *pdev)
const char *parent_name;
struct clk *clk;
struct i2s_pll_clk *pll_clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct resource *mem;
pll_clk = devm_kzalloc(dev, sizeof(*pll_clk), GFP_KERNEL);
diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c
index e4fee23..f89ec88 100644
--- a/drivers/clk/bcm/clk-bcm2835.c
+++ b/drivers/clk/bcm/clk-bcm2835.c
@@ -1298,7 +1298,7 @@ static struct clk_hw *bcm2835_register_pll(struct bcm2835_cprman *cprman,
const struct bcm2835_pll_data *data)
{
struct bcm2835_pll *pll;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
memset(&init, 0, sizeof(init));
@@ -1331,7 +1331,7 @@ bcm2835_register_pll_divider(struct bcm2835_cprman *cprman,
const struct bcm2835_pll_divider_data *data)
{
struct bcm2835_pll_divider *divider;
- struct clk_init_data init;
+ struct clk_init_data init = {};
const char *divider_name;
int ret;
@@ -1390,7 +1390,7 @@ static struct clk_hw *bcm2835_register_clock(struct bcm2835_cprman *cprman,
const struct bcm2835_clock_data *data)
{
struct bcm2835_clock *clock;
- struct clk_init_data init;
+ struct clk_init_data init = {};
const char *parents[1 << CM_SRC_BITS];
size_t i;
int ret;
diff --git a/drivers/clk/bcm/clk-iproc-armpll.c b/drivers/clk/bcm/clk-iproc-armpll.c
index d7d6282..e0b67ee 100644
--- a/drivers/clk/bcm/clk-iproc-armpll.c
+++ b/drivers/clk/bcm/clk-iproc-armpll.c
@@ -245,7 +245,7 @@ void __init iproc_armpll_setup(struct device_node *node)
{
int ret;
struct iproc_arm_pll *pll;
- struct clk_init_data init;
+ struct clk_init_data init = {};
const char *parent_name;
pll = kzalloc(sizeof(*pll), GFP_KERNEL);
diff --git a/drivers/clk/bcm/clk-iproc-asiu.c b/drivers/clk/bcm/clk-iproc-asiu.c
index 6fb8af5..8d873fc 100644
--- a/drivers/clk/bcm/clk-iproc-asiu.c
+++ b/drivers/clk/bcm/clk-iproc-asiu.c
@@ -216,7 +216,7 @@ void __init iproc_asiu_setup(struct device_node *node,
goto err_iomap_gate;
for (i = 0; i < num_clks; i++) {
- struct clk_init_data init;
+ struct clk_init_data init = {};
const char *parent_name;
struct iproc_asiu_clk *asiu_clk;
const char *clk_name;
diff --git a/drivers/clk/bcm/clk-iproc-pll.c b/drivers/clk/bcm/clk-iproc-pll.c
index 274441e..322ac52 100644
--- a/drivers/clk/bcm/clk-iproc-pll.c
+++ b/drivers/clk/bcm/clk-iproc-pll.c
@@ -732,7 +732,7 @@ void iproc_pll_clk_setup(struct device_node *node,
int i, ret;
struct iproc_pll *pll;
struct iproc_clk *iclk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
const char *parent_name;
struct iproc_clk *iclk_array;
struct clk_hw_onecell_data *clk_data;
diff --git a/drivers/clk/berlin/berlin2-avpll.c b/drivers/clk/berlin/berlin2-avpll.c
index aa89b4c..b853208 100644
--- a/drivers/clk/berlin/berlin2-avpll.c
+++ b/drivers/clk/berlin/berlin2-avpll.c
@@ -182,7 +182,7 @@ int __init berlin2_avpll_vco_register(void __iomem *base,
u8 vco_flags, unsigned long flags)
{
struct berlin2_avpll_vco *vco;
- struct clk_init_data init;
+ struct clk_init_data init = {};
vco = kzalloc(sizeof(*vco), GFP_KERNEL);
if (!vco)
@@ -358,7 +358,7 @@ int __init berlin2_avpll_channel_register(void __iomem *base,
u8 ch_flags, unsigned long flags)
{
struct berlin2_avpll_channel *ch;
- struct clk_init_data init;
+ struct clk_init_data init = {};
ch = kzalloc(sizeof(*ch), GFP_KERNEL);
if (!ch)
diff --git a/drivers/clk/berlin/berlin2-pll.c b/drivers/clk/berlin/berlin2-pll.c
index 9661820..adb4249 100644
--- a/drivers/clk/berlin/berlin2-pll.c
+++ b/drivers/clk/berlin/berlin2-pll.c
@@ -78,7 +78,7 @@ berlin2_pll_register(const struct berlin2_pll_map *map,
void __iomem *base, const char *name,
const char *parent_name, unsigned long flags)
{
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct berlin2_pll *pll;
pll = kzalloc(sizeof(*pll), GFP_KERNEL);
diff --git a/drivers/clk/clk-aspeed.c b/drivers/clk/clk-aspeed.c
index 5961367..5e7ea53 100644
--- a/drivers/clk/clk-aspeed.c
+++ b/drivers/clk/clk-aspeed.c
@@ -387,7 +387,7 @@ static struct clk_hw *aspeed_clk_hw_register_gate(struct device *dev,
u8 clk_gate_flags, spinlock_t *lock)
{
struct aspeed_clk_gate *gate;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk_hw *hw;
int ret;
diff --git a/drivers/clk/clk-axi-clkgen.c b/drivers/clk/clk-axi-clkgen.c
index 48d11f2..2285736 100644
--- a/drivers/clk/clk-axi-clkgen.c
+++ b/drivers/clk/clk-axi-clkgen.c
@@ -411,7 +411,7 @@ static int axi_clkgen_probe(struct platform_device *pdev)
{
const struct of_device_id *id;
struct axi_clkgen *axi_clkgen;
- struct clk_init_data init;
+ struct clk_init_data init = {};
const char *parent_names[2];
const char *clk_name;
struct resource *mem;
diff --git a/drivers/clk/clk-cdce925.c b/drivers/clk/clk-cdce925.c
index 0a7e7d5..afe3825 100644
--- a/drivers/clk/clk-cdce925.c
+++ b/drivers/clk/clk-cdce925.c
@@ -616,7 +616,7 @@ static int cdce925_probe(struct i2c_client *client,
struct device_node *node = client->dev.of_node;
const char *parent_name;
const char *pll_clk_name[MAX_NUMBER_OF_PLLS] = {NULL,};
- struct clk_init_data init;
+ struct clk_init_data init = {};
u32 value;
int i;
int err;
diff --git a/drivers/clk/clk-composite.c b/drivers/clk/clk-composite.c
index 00269de..5e40ca6 100644
--- a/drivers/clk/clk-composite.c
+++ b/drivers/clk/clk-composite.c
@@ -219,7 +219,7 @@ struct clk_hw *clk_hw_register_composite(struct device *dev, const char *name,
unsigned long flags)
{
struct clk_hw *hw;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk_composite *composite;
struct clk_ops *clk_composite_ops;
int ret;
diff --git a/drivers/clk/clk-cs2000-cp.c b/drivers/clk/clk-cs2000-cp.c
index 92bc4ac..05fc332 100644
--- a/drivers/clk/clk-cs2000-cp.c
+++ b/drivers/clk/clk-cs2000-cp.c
@@ -418,7 +418,7 @@ static int cs2000_clk_register(struct cs2000_priv *priv)
{
struct device *dev = priv_to_dev(priv);
struct device_node *np = dev->of_node;
- struct clk_init_data init;
+ struct clk_init_data init = {};
const char *name = np->name;
static const char *parent_names[CLK_MAX];
int ch = 0; /* it uses ch0 only at this point */
diff --git a/drivers/clk/clk-divider.c b/drivers/clk/clk-divider.c
index b6234a5..c1296b5 100644
--- a/drivers/clk/clk-divider.c
+++ b/drivers/clk/clk-divider.c
@@ -458,7 +458,7 @@ static struct clk_hw *_register_divider(struct device *dev, const char *name,
{
struct clk_divider *div;
struct clk_hw *hw;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
if (clk_divider_flags & CLK_DIVIDER_HIWORD_MASK) {
diff --git a/drivers/clk/clk-fixed-factor.c b/drivers/clk/clk-fixed-factor.c
index 7df6b5b..88a9d94 100644
--- a/drivers/clk/clk-fixed-factor.c
+++ b/drivers/clk/clk-fixed-factor.c
@@ -74,7 +74,7 @@ struct clk_hw *clk_hw_register_fixed_factor(struct device *dev,
unsigned int mult, unsigned int div)
{
struct clk_fixed_factor *fix;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk_hw *hw;
int ret;
diff --git a/drivers/clk/clk-fixed-rate.c b/drivers/clk/clk-fixed-rate.c
index 6d6475c..d176d2d 100644
--- a/drivers/clk/clk-fixed-rate.c
+++ b/drivers/clk/clk-fixed-rate.c
@@ -61,7 +61,7 @@ struct clk_hw *clk_hw_register_fixed_rate_with_accuracy(struct device *dev,
{
struct clk_fixed_rate *fixed;
struct clk_hw *hw;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
/* allocate fixed-rate clock */
diff --git a/drivers/clk/clk-fractional-divider.c b/drivers/clk/clk-fractional-divider.c
index 083daa2..0f80ccb 100644
--- a/drivers/clk/clk-fractional-divider.c
+++ b/drivers/clk/clk-fractional-divider.c
@@ -134,7 +134,7 @@ struct clk_hw *clk_hw_register_fractional_divider(struct device *dev,
u8 clk_divider_flags, spinlock_t *lock)
{
struct clk_fractional_divider *fd;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk_hw *hw;
int ret;
diff --git a/drivers/clk/clk-gate.c b/drivers/clk/clk-gate.c
index dd82485..5a0d5b2 100644
--- a/drivers/clk/clk-gate.c
+++ b/drivers/clk/clk-gate.c
@@ -128,7 +128,7 @@ struct clk_hw *clk_hw_register_gate(struct device *dev, const char *name,
{
struct clk_gate *gate;
struct clk_hw *hw;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
if (clk_gate_flags & CLK_GATE_HIWORD_MASK) {
diff --git a/drivers/clk/clk-gemini.c b/drivers/clk/clk-gemini.c
index b51069e..c8d384e 100644
--- a/drivers/clk/clk-gemini.c
+++ b/drivers/clk/clk-gemini.c
@@ -193,7 +193,7 @@ static struct clk_hw *gemini_pci_clk_setup(const char *name,
struct regmap *map)
{
struct clk_gemini_pci *pciclk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
pciclk = kzalloc(sizeof(*pciclk), GFP_KERNEL);
diff --git a/drivers/clk/clk-highbank.c b/drivers/clk/clk-highbank.c
index 8e45810..8a823fe 100644
--- a/drivers/clk/clk-highbank.c
+++ b/drivers/clk/clk-highbank.c
@@ -278,7 +278,7 @@ static __init struct clk *hb_clk_init(struct device_node *node, const struct clk
struct hb_clk *hb_clk;
const char *clk_name = node->name;
const char *parent_name;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct device_node *srnp;
int rc;
diff --git a/drivers/clk/clk-mux.c b/drivers/clk/clk-mux.c
index 1628b93..8239d2f 100644
--- a/drivers/clk/clk-mux.c
+++ b/drivers/clk/clk-mux.c
@@ -140,7 +140,7 @@ struct clk_hw *clk_hw_register_mux_table(struct device *dev, const char *name,
{
struct clk_mux *mux;
struct clk_hw *hw;
- struct clk_init_data init;
+ struct clk_init_data init = {};
u8 width = 0;
int ret;
diff --git a/drivers/clk/clk-nomadik.c b/drivers/clk/clk-nomadik.c
index 13ad6d1..fa3a017 100644
--- a/drivers/clk/clk-nomadik.c
+++ b/drivers/clk/clk-nomadik.c
@@ -259,7 +259,7 @@ pll_clk_register(struct device *dev, const char *name,
{
int ret;
struct clk_pll *pll;
- struct clk_init_data init;
+ struct clk_init_data init = {};
if (id != 1 && id != 2) {
pr_err("%s: the Nomadik has only PLL 1 & 2\n", __func__);
@@ -351,7 +351,7 @@ src_clk_register(struct device *dev, const char *name,
{
int ret;
struct clk_src *sclk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
sclk = kzalloc(sizeof(*sclk), GFP_KERNEL);
if (!sclk)
diff --git a/drivers/clk/clk-npcm7xx.c b/drivers/clk/clk-npcm7xx.c
index c5edf8f..d868758 100644
--- a/drivers/clk/clk-npcm7xx.c
+++ b/drivers/clk/clk-npcm7xx.c
@@ -70,7 +70,7 @@ npcm7xx_clk_register_pll(void __iomem *pllcon, const char *name,
const char *parent_name, unsigned long flags)
{
struct npcm7xx_clk_pll *pll;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk_hw *hw;
int ret;
diff --git a/drivers/clk/clk-pwm.c b/drivers/clk/clk-pwm.c
index 8cb9d11..4c486c0 100644
--- a/drivers/clk/clk-pwm.c
+++ b/drivers/clk/clk-pwm.c
@@ -56,7 +56,7 @@ static const struct clk_ops clk_pwm_ops = {
static int clk_pwm_probe(struct platform_device *pdev)
{
struct device_node *node = pdev->dev.of_node;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk_pwm *clk_pwm;
struct pwm_device *pwm;
struct pwm_args pargs;
@@ -78,7 +78,7 @@ static int clk_pwm_probe(struct platform_device *pdev)
}
if (of_property_read_u32(node, "clock-frequency", &clk_pwm->fixed_rate))
- clk_pwm->fixed_rate = NSEC_PER_SEC / pargs.period;
+ clk_pwm->fixed_rate = div64_u64(NSEC_PER_SEC, pargs.period);
if (pargs.period != NSEC_PER_SEC / clk_pwm->fixed_rate &&
pargs.period != DIV_ROUND_UP(NSEC_PER_SEC, clk_pwm->fixed_rate)) {
diff --git a/drivers/clk/clk-scpi.c b/drivers/clk/clk-scpi.c
index 2585472..44b76a1 100644
--- a/drivers/clk/clk-scpi.c
+++ b/drivers/clk/clk-scpi.c
@@ -150,7 +150,7 @@ static int
scpi_clk_ops_init(struct device *dev, const struct of_device_id *match,
struct scpi_clk *sclk, const char *name)
{
- struct clk_init_data init;
+ struct clk_init_data init = {};
unsigned long min = 0, max = 0;
int ret;
diff --git a/drivers/clk/clk-si514.c b/drivers/clk/clk-si514.c
index 153b3a2..9507014 100644
--- a/drivers/clk/clk-si514.c
+++ b/drivers/clk/clk-si514.c
@@ -340,7 +340,7 @@ static int si514_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct clk_si514 *data;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int err;
data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
diff --git a/drivers/clk/clk-si5351.c b/drivers/clk/clk-si5351.c
index 50e7c34..4e3e16e 100644
--- a/drivers/clk/clk-si5351.c
+++ b/drivers/clk/clk-si5351.c
@@ -1370,7 +1370,7 @@ static int si5351_i2c_probe(struct i2c_client *client,
enum si5351_variant variant = (enum si5351_variant)id->driver_data;
struct si5351_platform_data *pdata;
struct si5351_driver_data *drvdata;
- struct clk_init_data init;
+ struct clk_init_data init = {};
const char *parent_names[4];
u8 num_parents, num_clocks;
int ret, n;
diff --git a/drivers/clk/clk-si544.c b/drivers/clk/clk-si544.c
index 64e607f..7d7055f 100644
--- a/drivers/clk/clk-si544.c
+++ b/drivers/clk/clk-si544.c
@@ -373,7 +373,7 @@ static int si544_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct clk_si544 *data;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int err;
data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
diff --git a/drivers/clk/clk-si570.c b/drivers/clk/clk-si570.c
index 646af1d..8161cbc 100644
--- a/drivers/clk/clk-si570.c
+++ b/drivers/clk/clk-si570.c
@@ -407,7 +407,7 @@ static int si570_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct clk_si570 *data;
- struct clk_init_data init;
+ struct clk_init_data init = {};
u32 initial_fout, factory_fout, stability;
int err;
enum clk_si570_variant variant = id->driver_data;
diff --git a/drivers/clk/clk-stm32f4.c b/drivers/clk/clk-stm32f4.c
index 61de486..f9fd461 100644
--- a/drivers/clk/clk-stm32f4.c
+++ b/drivers/clk/clk-stm32f4.c
@@ -396,7 +396,7 @@ static struct clk *clk_register_apb_mul(struct device *dev, const char *name,
unsigned long flags, u8 bit_idx)
{
struct clk_apb_mul *am;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk *clk;
am = kzalloc(sizeof(*am), GFP_KERNEL);
@@ -678,7 +678,7 @@ static struct clk_hw *clk_register_pll_div(const char *name,
{
struct stm32f4_pll_div *pll_div;
struct clk_hw *hw;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
/* allocate the divider */
diff --git a/drivers/clk/clk-stm32h7.c b/drivers/clk/clk-stm32h7.c
index d3271ec..1f5936b 100644
--- a/drivers/clk/clk-stm32h7.c
+++ b/drivers/clk/clk-stm32h7.c
@@ -463,7 +463,7 @@ static struct clk_hw *clk_register_stm32_timer_ker(struct device *dev,
spinlock_t *lock)
{
struct timer_ker *element;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk_hw *hw;
int err;
diff --git a/drivers/clk/clk-stm32mp1.c b/drivers/clk/clk-stm32mp1.c
index bf3b6a4..8d99ed0 100644
--- a/drivers/clk/clk-stm32mp1.c
+++ b/drivers/clk/clk-stm32mp1.c
@@ -870,7 +870,7 @@ static struct clk_hw *clk_register_pll(struct device *dev, const char *name,
spinlock_t *lock)
{
struct stm32_pll_obj *element;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk_hw *hw;
int err;
@@ -1001,7 +1001,7 @@ static struct clk_hw *clk_register_cktim(struct device *dev, const char *name,
spinlock_t *lock)
{
struct timer_cker *tim_ker;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk_hw *hw;
int err;
diff --git a/drivers/clk/clk-u300.c b/drivers/clk/clk-u300.c
index 7b3e192..10eefda 100644
--- a/drivers/clk/clk-u300.c
+++ b/drivers/clk/clk-u300.c
@@ -699,7 +699,7 @@ syscon_clk_register(struct device *dev, const char *name,
{
struct clk_hw *hw;
struct clk_syscon *sclk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
sclk = kzalloc(sizeof(*sclk), GFP_KERNEL);
@@ -1118,7 +1118,7 @@ mclk_clk_register(struct device *dev, const char *name,
{
struct clk_hw *hw;
struct clk_mclk *mclk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
mclk = kzalloc(sizeof(*mclk), GFP_KERNEL);
diff --git a/drivers/clk/clk-versaclock5.c b/drivers/clk/clk-versaclock5.c
index a738af8..b07d82d 100644
--- a/drivers/clk/clk-versaclock5.c
+++ b/drivers/clk/clk-versaclock5.c
@@ -703,7 +703,7 @@ static int vc5_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct vc5_driver_data *vc5;
- struct clk_init_data init;
+ struct clk_init_data init = {};
const char *parent_names[2];
unsigned int n, idx = 0;
int ret;
diff --git a/drivers/clk/clk-vt8500.c b/drivers/clk/clk-vt8500.c
index 4161a6f..806a95d 100644
--- a/drivers/clk/clk-vt8500.c
+++ b/drivers/clk/clk-vt8500.c
@@ -236,7 +236,7 @@ static __init void vtwm_device_clk_init(struct device_node *node)
struct clk_device *dev_clk;
const char *clk_name = node->name;
const char *parent_name;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int rc;
int clk_init_flags = 0;
@@ -686,7 +686,7 @@ static __init void vtwm_pll_clk_init(struct device_node *node, int pll_type)
struct clk_pll *pll_clk;
const char *clk_name = node->name;
const char *parent_name;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int rc;
if (!pmc_base)
diff --git a/drivers/clk/clk-xgene.c b/drivers/clk/clk-xgene.c
index 531b030..43295d76 100644
--- a/drivers/clk/clk-xgene.c
+++ b/drivers/clk/clk-xgene.c
@@ -142,7 +142,7 @@ static struct clk *xgene_register_clk_pll(struct device *dev,
{
struct xgene_clk_pll *apmclk;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
/* allocate the APM clock structure */
apmclk = kzalloc(sizeof(*apmclk), GFP_KERNEL);
@@ -359,7 +359,7 @@ xgene_register_clk_pmd(struct device *dev,
u8 width, u64 denom, u32 clk_flags, spinlock_t *lock)
{
struct xgene_clk_pmd *fd;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk *clk;
fd = kzalloc(sizeof(*fd), GFP_KERNEL);
@@ -643,7 +643,7 @@ static struct clk *xgene_register_clk(struct device *dev,
{
struct xgene_clk *apmclk;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int rc;
/* allocate the APM clock structure */
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index a9490c8..ba2dfa4 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -1,6 +1,7 @@
/*
* Copyright (C) 2010-2011 Canonical Ltd <jeremy.kerr@canonical.com>
* Copyright (C) 2011-2012 Linaro Ltd <mturquette@linaro.org>
+ * Copyright (c) 2017-2019, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -24,6 +25,9 @@
#include <linux/pm_runtime.h>
#include <linux/sched.h>
#include <linux/clkdev.h>
+#include <linux/of_platform.h>
+#include <linux/pm_opp.h>
+#include <linux/regulator/consumer.h>
#include "clk.h"
@@ -46,6 +50,16 @@ static struct hlist_head *all_lists[] = {
NULL,
};
+/*
+ * clk_rate_change_list is used during clk_core_set_rate_nolock() calls to
+ * handle vdd_class vote tracking. core->rate_change_node is added to
+ * clk_rate_change_list when core->new_rate requires a different voltage level
+ * (core->new_vdd_class_vote) than core->vdd_class_vote. Elements are removed
+ * from the list after unvoting core->vdd_class_vote immediately before
+ * returning from clk_core_set_rate_nolock().
+ */
+static LIST_HEAD(clk_rate_change_list);
+
/*** private data structures ***/
struct clk_core {
@@ -57,8 +71,8 @@ struct clk_core {
struct clk_core *parent;
const char **parent_names;
struct clk_core **parents;
- u8 num_parents;
- u8 new_parent_index;
+ unsigned int num_parents;
+ unsigned int new_parent_index;
unsigned long rate;
unsigned long req_rate;
unsigned long new_rate;
@@ -66,9 +80,14 @@ struct clk_core {
struct clk_core *new_child;
unsigned long flags;
bool orphan;
+ bool rpm_enabled;
+ bool need_sync;
+ bool boot_enabled;
unsigned int enable_count;
unsigned int prepare_count;
unsigned int protect_count;
+ bool need_handoff_enable;
+ bool need_handoff_prepare;
unsigned long min_rate;
unsigned long max_rate;
unsigned long accuracy;
@@ -83,6 +102,12 @@ struct clk_core {
struct hlist_node debug_node;
#endif
struct kref ref;
+ struct clk_vdd_class *vdd_class;
+ int vdd_class_vote;
+ int new_vdd_class_vote;
+ struct list_head rate_change_node;
+ unsigned long *rate_max;
+ int num_rate_max;
};
#define CREATE_TRACE_POINTS
@@ -101,9 +126,9 @@ struct clk {
/*** runtime pm ***/
static int clk_pm_runtime_get(struct clk_core *core)
{
- int ret = 0;
+ int ret;
- if (!core->dev)
+ if (!core->rpm_enabled)
return 0;
ret = pm_runtime_get_sync(core->dev);
@@ -116,7 +141,7 @@ static int clk_pm_runtime_get(struct clk_core *core)
static void clk_pm_runtime_put(struct clk_core *core)
{
- if (!core->dev)
+ if (!core->rpm_enabled)
return;
pm_runtime_put_sync(core->dev);
@@ -236,7 +261,7 @@ static bool clk_core_is_enabled(struct clk_core *core)
* taking enable spinlock, but the below check is needed if one tries
* to call it from other places.
*/
- if (core->dev) {
+ if (core->rpm_enabled) {
pm_runtime_get_noresume(core->dev);
if (!pm_runtime_active(core->dev)) {
ret = false;
@@ -246,7 +271,7 @@ static bool clk_core_is_enabled(struct clk_core *core)
ret = core->ops->is_enabled(core->hw);
done:
- if (core->dev)
+ if (core->rpm_enabled)
pm_runtime_put(core->dev);
return ret;
@@ -407,6 +432,7 @@ bool clk_hw_is_prepared(const struct clk_hw *hw)
{
return clk_core_is_prepared(hw->core);
}
+EXPORT_SYMBOL_GPL(clk_hw_is_prepared);
bool clk_hw_rate_is_protected(const struct clk_hw *hw)
{
@@ -417,6 +443,7 @@ bool clk_hw_is_enabled(const struct clk_hw *hw)
{
return clk_core_is_enabled(hw->core);
}
+EXPORT_SYMBOL_GPL(clk_hw_is_enabled);
bool __clk_is_enabled(struct clk *clk)
{
@@ -532,6 +559,26 @@ void clk_hw_set_rate_range(struct clk_hw *hw, unsigned long min_rate,
EXPORT_SYMBOL_GPL(clk_hw_set_rate_range);
/*
+ * Aggregate the rate of all the enabled child nodes and exclude that
+ * of the child node for which this request was made.
+ */
+unsigned long clk_aggregate_rate(struct clk_hw *hw,
+ const struct clk_core *parent)
+{
+ struct clk_core *child;
+ unsigned long aggre_rate = 0;
+
+ hlist_for_each_entry(child, &parent->children, child_node) {
+ if (child->enable_count &&
+ strcmp(child->name, hw->init->name))
+ aggre_rate = max(child->rate, aggre_rate);
+ }
+
+ return aggre_rate;
+}
+EXPORT_SYMBOL_GPL(clk_aggregate_rate);
+
+/*
* Helper for finding best parent to provide a given frequency. This can be used
* directly as a determine_rate callback (e.g. for a mux), or from a more
* complex clock that may combine a mux with other operations.
@@ -550,6 +597,201 @@ int __clk_mux_determine_rate_closest(struct clk_hw *hw,
}
EXPORT_SYMBOL_GPL(__clk_mux_determine_rate_closest);
+/*
+ * Find the voltage level required for a given clock rate.
+ */
+static int clk_find_vdd_level(struct clk_core *clk, unsigned long rate)
+{
+ int level;
+
+ /*
+ * For certain PLLs, due to the limitation in the bits allocated for
+ * programming the fractional divider, the actual rate of the PLL will
+ * be slightly higher than the requested rate (in the order of several
+ * Hz). To accommodate this difference, convert the FMAX rate and the
+ * clock frequency to KHz and use that for deriving the voltage level.
+ */
+ for (level = 0; level < clk->num_rate_max; level++)
+ if (DIV_ROUND_CLOSEST(rate, 1000) <=
+ DIV_ROUND_CLOSEST(clk->rate_max[level], 1000) &&
+ clk->rate_max[level] > 0)
+ break;
+
+ if (level == clk->num_rate_max) {
+ pr_err("Rate %lu for %s is greater than highest Fmax\n", rate,
+ clk->name);
+ return -EINVAL;
+ }
+
+ return level;
+}
+
+/*
+ * Update voltage level given the current votes.
+ */
+static int clk_update_vdd(struct clk_vdd_class *vdd_class)
+{
+ int level, rc = 0, i, ignore;
+ struct regulator **r = vdd_class->regulator;
+ int *uv = vdd_class->vdd_uv;
+ int n_reg = vdd_class->num_regulators;
+ int cur_lvl = vdd_class->cur_level;
+ int max_lvl = vdd_class->num_levels - 1;
+ int cur_base = cur_lvl * n_reg;
+ int new_base;
+
+ /* aggregate votes */
+ for (level = max_lvl; level > 0; level--)
+ if (vdd_class->level_votes[level])
+ break;
+
+ if (level == cur_lvl)
+ return 0;
+
+ max_lvl = max_lvl * n_reg;
+ new_base = level * n_reg;
+
+ for (i = 0; i < vdd_class->num_regulators; i++) {
+ pr_debug("Set Voltage level Min %d, Max %d\n", uv[new_base + i],
+ uv[max_lvl + i]);
+ rc = regulator_set_voltage(r[i], uv[new_base + i], INT_MAX);
+ if (rc)
+ goto set_voltage_fail;
+
+ if (cur_lvl == 0 || cur_lvl == vdd_class->num_levels)
+ rc = regulator_enable(r[i]);
+ else if (level == 0)
+ rc = regulator_disable(r[i]);
+ if (rc)
+ goto enable_disable_fail;
+ }
+
+ if (vdd_class->set_vdd && !vdd_class->num_regulators)
+ rc = vdd_class->set_vdd(vdd_class, level);
+
+ if (!rc)
+ vdd_class->cur_level = level;
+
+ return rc;
+
+enable_disable_fail:
+ regulator_set_voltage(r[i], uv[cur_base + i], INT_MAX);
+
+set_voltage_fail:
+ for (i--; i >= 0; i--) {
+ regulator_set_voltage(r[i], uv[cur_base + i], INT_MAX);
+ if (cur_lvl == 0 || cur_lvl == vdd_class->num_levels)
+ regulator_disable(r[i]);
+ else if (level == 0)
+ ignore = regulator_enable(r[i]);
+ }
+
+ return rc;
+}
+
+/*
+ * Vote for a voltage level.
+ */
+int clk_vote_vdd_level(struct clk_vdd_class *vdd_class, int level)
+{
+ int rc = 0;
+
+ if (level >= vdd_class->num_levels)
+ return -EINVAL;
+
+ mutex_lock(&vdd_class->lock);
+
+ vdd_class->level_votes[level]++;
+
+ rc = clk_update_vdd(vdd_class);
+ if (rc)
+ vdd_class->level_votes[level]--;
+
+ mutex_unlock(&vdd_class->lock);
+
+ return rc;
+}
+EXPORT_SYMBOL_GPL(clk_vote_vdd_level);
+
+/*
+ * Remove vote for a voltage level.
+ */
+int clk_unvote_vdd_level(struct clk_vdd_class *vdd_class, int level)
+{
+ int rc = 0;
+
+ if (level >= vdd_class->num_levels)
+ return -EINVAL;
+
+ mutex_lock(&vdd_class->lock);
+
+ if (WARN(!vdd_class->level_votes[level],
+ "Reference counts are incorrect for %s level %d\n",
+ vdd_class->class_name, level)) {
+ rc = -EINVAL;
+ goto out;
+ }
+
+ vdd_class->level_votes[level]--;
+
+ rc = clk_update_vdd(vdd_class);
+ if (rc)
+ vdd_class->level_votes[level]++;
+
+out:
+ mutex_unlock(&vdd_class->lock);
+ return rc;
+}
+EXPORT_SYMBOL_GPL(clk_unvote_vdd_level);
+
+/*
+ * Vote for a voltage level corresponding to a clock's rate.
+ */
+int clk_vote_rate_vdd(struct clk_core *core, unsigned long rate)
+{
+ int level;
+
+ if (!core->vdd_class)
+ return 0;
+
+ level = clk_find_vdd_level(core, rate);
+ if (level < 0)
+ return level;
+
+ return clk_vote_vdd_level(core->vdd_class, level);
+}
+EXPORT_SYMBOL_GPL(clk_vote_rate_vdd);
+
+/*
+ * Remove vote for a voltage level corresponding to a clock's rate.
+ */
+void clk_unvote_rate_vdd(struct clk_core *core, unsigned long rate)
+{
+ int level;
+
+ if (!core->vdd_class)
+ return;
+
+ level = clk_find_vdd_level(core, rate);
+ if (level < 0)
+ return;
+
+ clk_unvote_vdd_level(core->vdd_class, level);
+}
+EXPORT_SYMBOL_GPL(clk_unvote_rate_vdd);
+
+static bool clk_is_rate_level_valid(struct clk_core *core, unsigned long rate)
+{
+ int level;
+
+ if (!core->vdd_class)
+ return true;
+
+ level = clk_find_vdd_level(core, rate);
+
+ return level >= 0;
+}
+
/*** clk api ***/
static void clk_core_rate_unprotect(struct clk_core *core)
@@ -717,6 +959,13 @@ static void clk_core_unprepare(struct clk_core *core)
clk_pm_runtime_put(core);
trace_clk_unprepare_complete(core);
+
+ if (core->vdd_class) {
+ clk_unvote_vdd_level(core->vdd_class, core->vdd_class_vote);
+ core->vdd_class_vote = 0;
+ core->new_vdd_class_vote = 0;
+ }
+
clk_core_unprepare(core->parent);
}
@@ -767,13 +1016,28 @@ static int clk_core_prepare(struct clk_core *core)
trace_clk_prepare(core);
+ ret = clk_vote_rate_vdd(core, core->rate);
+ if (ret) {
+ clk_core_unprepare(core->parent);
+ return ret;
+ }
+ if (core->vdd_class) {
+ core->vdd_class_vote
+ = clk_find_vdd_level(core, core->rate);
+ core->new_vdd_class_vote = core->vdd_class_vote;
+ }
+
if (core->ops->prepare)
ret = core->ops->prepare(core->hw);
trace_clk_prepare_complete(core);
- if (ret)
+ if (ret) {
+ clk_unvote_rate_vdd(core, core->rate);
+ core->vdd_class_vote = 0;
+ core->new_vdd_class_vote = 0;
goto unprepare;
+ }
}
core->prepare_count++;
@@ -985,6 +1249,23 @@ static void clk_unprepare_unused_subtree(struct clk_core *core)
hlist_for_each_entry(child, &core->children, child_node)
clk_unprepare_unused_subtree(child);
+ if (dev_has_sync_state(core->dev) &&
+ !(core->flags & CLK_DONT_HOLD_STATE))
+ return;
+
+ /*
+ * setting CLK_ENABLE_HAND_OFF flag triggers this conditional
+ *
+ * need_handoff_prepare implies this clk was already prepared by
+ * __clk_init. now we have a proper user, so unset the flag in our
+ * internal bookkeeping. See CLK_ENABLE_HAND_OFF flag in clk-provider.h
+ * for details.
+ */
+ if (core->need_handoff_prepare) {
+ core->need_handoff_prepare = false;
+ clk_core_unprepare(core);
+ }
+
if (core->prepare_count)
return;
@@ -1016,6 +1297,25 @@ static void clk_disable_unused_subtree(struct clk_core *core)
hlist_for_each_entry(child, &core->children, child_node)
clk_disable_unused_subtree(child);
+ if (dev_has_sync_state(core->dev) &&
+ !(core->flags & CLK_DONT_HOLD_STATE))
+ return;
+
+ /*
+ * setting CLK_ENABLE_HAND_OFF flag triggers this conditional
+ *
+ * need_handoff_enable implies this clk was already enabled by
+ * __clk_init. now we have a proper user, so unset the flag in our
+ * internal bookkeeping. See CLK_ENABLE_HAND_OFF flag in clk-provider.h
+ * for details.
+ */
+ if (core->need_handoff_enable) {
+ core->need_handoff_enable = false;
+ flags = clk_enable_lock();
+ clk_core_disable(core);
+ clk_enable_unlock(flags);
+ }
+
if (core->flags & CLK_OPS_PARENT_ENABLE)
clk_core_prepare_enable(core->parent);
@@ -1089,6 +1389,38 @@ static int clk_disable_unused(void)
}
late_initcall_sync(clk_disable_unused);
+static void clk_unprepare_disable_dev_subtree(struct clk_core *core,
+ struct device *dev)
+{
+ struct clk_core *child;
+
+ lockdep_assert_held(&prepare_lock);
+
+ hlist_for_each_entry(child, &core->children, child_node)
+ clk_unprepare_disable_dev_subtree(child, dev);
+
+ if (core->dev != dev || !core->need_sync)
+ return;
+
+ clk_core_disable_unprepare(core);
+}
+
+void clk_sync_state(struct device *dev)
+{
+ struct clk_core *core;
+
+ clk_prepare_lock();
+
+ hlist_for_each_entry(core, &clk_root_list, child_node)
+ clk_unprepare_disable_dev_subtree(core, dev);
+
+ hlist_for_each_entry(core, &clk_orphan_list, child_node)
+ clk_unprepare_disable_dev_subtree(core, dev);
+
+ clk_prepare_unlock();
+}
+EXPORT_SYMBOL_GPL(clk_sync_state);
+
static int clk_core_determine_round_nolock(struct clk_core *core,
struct clk_rate_request *req)
{
@@ -1438,6 +1770,33 @@ static int clk_fetch_parent_index(struct clk_core *core,
return -EINVAL;
}
+static void clk_core_hold_state(struct clk_core *core)
+{
+ if (core->need_sync || !core->boot_enabled)
+ return;
+
+ if (core->orphan || !dev_has_sync_state(core->dev))
+ return;
+
+ if (core->flags & CLK_DONT_HOLD_STATE)
+ return;
+
+ core->need_sync = !clk_core_prepare_enable(core);
+}
+
+static void __clk_core_update_orphan_hold_state(struct clk_core *core)
+{
+ struct clk_core *child;
+
+ if (core->orphan)
+ return;
+
+ clk_core_hold_state(core);
+
+ hlist_for_each_entry(child, &core->children, child_node)
+ __clk_core_update_orphan_hold_state(child);
+}
+
/*
* Update the orphan status of @core and all its children.
*/
@@ -1619,12 +1978,59 @@ static int __clk_speculate_rates(struct clk_core *core,
return ret;
}
-static void clk_calc_subtree(struct clk_core *core, unsigned long new_rate,
+/*
+ * Vote for the voltage level required for core->new_rate. Keep track of all
+ * clocks with a changed voltage level in clk_rate_change_list.
+ */
+static int clk_vote_new_rate_vdd(struct clk_core *core)
+{
+ int cur_level, next_level;
+ int ret;
+
+ if (IS_ERR_OR_NULL(core) || !core->vdd_class)
+ return 0;
+
+ if (!clk_core_is_prepared(core))
+ return 0;
+
+ cur_level = core->new_vdd_class_vote;
+ next_level = clk_find_vdd_level(core, core->new_rate);
+ if (cur_level == next_level)
+ return 0;
+
+ ret = clk_vote_vdd_level(core->vdd_class, next_level);
+ if (ret)
+ return ret;
+
+ core->new_vdd_class_vote = next_level;
+
+ if (list_empty(&core->rate_change_node)) {
+ list_add(&core->rate_change_node, &clk_rate_change_list);
+ } else {
+ /*
+ * A different new_rate has been determined for a clock that
+ * was already encountered in the clock tree traversal so the
+ * level that was previously voted for it should be removed.
+ */
+ ret = clk_unvote_vdd_level(core->vdd_class, cur_level);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int clk_calc_subtree(struct clk_core *core, unsigned long new_rate,
struct clk_core *new_parent, u8 p_index)
{
struct clk_core *child;
+ int ret;
core->new_rate = new_rate;
+ ret = clk_vote_new_rate_vdd(core);
+ if (ret)
+ return ret;
+
core->new_parent = new_parent;
core->new_parent_index = p_index;
/* include clk in new parent's PRE_RATE_CHANGE notifications */
@@ -1634,8 +2040,12 @@ static void clk_calc_subtree(struct clk_core *core, unsigned long new_rate,
hlist_for_each_entry(child, &core->children, child_node) {
child->new_rate = clk_recalc(child, new_rate);
- clk_calc_subtree(child, child->new_rate, NULL, 0);
+ ret = clk_calc_subtree(child, child->new_rate, NULL, 0);
+ if (ret)
+ return ret;
}
+
+ return 0;
}
/*
@@ -1714,12 +2124,23 @@ static struct clk_core *clk_calc_new_rates(struct clk_core *core,
}
}
+ /*
+ * Certain PLLs only have 16 bits to program the fractional divider.
+ * Hence the programmed rate might be slightly different than the
+ * requested one.
+ */
if ((core->flags & CLK_SET_RATE_PARENT) && parent &&
- best_parent_rate != parent->rate)
+ (DIV_ROUND_CLOSEST(best_parent_rate, 1000) !=
+ DIV_ROUND_CLOSEST(parent->rate, 1000)))
top = clk_calc_new_rates(parent, best_parent_rate);
out:
- clk_calc_subtree(core, new_rate, parent, p_index);
+ if (!clk_is_rate_level_valid(core, rate))
+ return NULL;
+
+ ret = clk_calc_subtree(core, new_rate, parent, p_index);
+ if (ret)
+ return NULL;
return top;
}
@@ -1767,7 +2188,7 @@ static struct clk_core *clk_propagate_rate_change(struct clk_core *core,
* walk down a subtree and set the new rates notifying the rate
* change on the way
*/
-static void clk_change_rate(struct clk_core *core)
+static int clk_change_rate(struct clk_core *core)
{
struct clk_core *child;
struct hlist_node *tmp;
@@ -1776,6 +2197,7 @@ static void clk_change_rate(struct clk_core *core)
bool skip_set_rate = false;
struct clk_core *old_parent;
struct clk_core *parent = NULL;
+ int rc = 0;
old_rate = core->rate;
@@ -1787,8 +2209,9 @@ static void clk_change_rate(struct clk_core *core)
best_parent_rate = core->parent->rate;
}
- if (clk_pm_runtime_get(core))
- return;
+ rc = clk_pm_runtime_get(core);
+ if (rc)
+ return rc;
if (core->flags & CLK_SET_RATE_UNGATE) {
unsigned long flags;
@@ -1799,6 +2222,8 @@ static void clk_change_rate(struct clk_core *core)
clk_enable_unlock(flags);
}
+ trace_clk_set_rate(core, core->new_rate);
+
if (core->new_parent && core->new_parent != core->parent) {
old_parent = __clk_set_parent_before(core, core->new_parent);
trace_clk_set_parent(core, core->new_parent);
@@ -1819,10 +2244,14 @@ static void clk_change_rate(struct clk_core *core)
if (core->flags & CLK_OPS_PARENT_ENABLE)
clk_core_prepare_enable(parent);
- trace_clk_set_rate(core, core->new_rate);
-
- if (!skip_set_rate && core->ops->set_rate)
- core->ops->set_rate(core->hw, core->new_rate, best_parent_rate);
+ if (!skip_set_rate && core->ops->set_rate) {
+ rc = core->ops->set_rate(core->hw, core->new_rate,
+ best_parent_rate);
+ if (rc) {
+ trace_clk_set_rate_complete(core, core->new_rate);
+ goto err_set_rate;
+ }
+ }
trace_clk_set_rate_complete(core, core->new_rate);
@@ -1854,14 +2283,18 @@ static void clk_change_rate(struct clk_core *core)
/* Skip children who will be reparented to another clock */
if (child->new_parent && child->new_parent != core)
continue;
- clk_change_rate(child);
+ rc = clk_change_rate(child);
+ if (rc)
+ goto err_set_rate;
}
/* handle the new child who might not be in core->children yet */
if (core->new_child)
- clk_change_rate(core->new_child);
+ rc = clk_change_rate(core->new_child);
+err_set_rate:
clk_pm_runtime_put(core);
+ return rc;
}
static unsigned long clk_core_req_round_rate_nolock(struct clk_core *core,
@@ -1891,12 +2324,85 @@ static unsigned long clk_core_req_round_rate_nolock(struct clk_core *core,
return ret ? 0 : req.rate;
}
+/*
+ * Unvote for the voltage level required for each core->new_vdd_class_vote in
+ * clk_rate_change_list. This is used when undoing voltage requests after an
+ * error is encountered before any physical rate changing.
+ */
+static void clk_unvote_new_rate_vdd(void)
+{
+ struct clk_core *core;
+
+ list_for_each_entry(core, &clk_rate_change_list, rate_change_node) {
+ clk_unvote_vdd_level(core->vdd_class, core->new_vdd_class_vote);
+ core->new_vdd_class_vote = core->vdd_class_vote;
+ }
+}
+
+/*
+ * Unvote for the voltage level required for each core->vdd_class_vote in
+ * clk_rate_change_list.
+ */
+static int clk_unvote_old_rate_vdd(void)
+{
+ struct clk_core *core;
+ int ret;
+
+ list_for_each_entry(core, &clk_rate_change_list, rate_change_node) {
+ ret = clk_unvote_vdd_level(core->vdd_class,
+ core->vdd_class_vote);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+/*
+ * In the case that rate setting fails, apply the max voltage level needed
+ * by either the old or new rate for each changed clock.
+ */
+static void clk_vote_safe_vdd(void)
+{
+ struct clk_core *core;
+
+ list_for_each_entry(core, &clk_rate_change_list, rate_change_node) {
+ if (core->vdd_class_vote > core->new_vdd_class_vote) {
+ clk_vote_vdd_level(core->vdd_class,
+ core->vdd_class_vote);
+ clk_unvote_vdd_level(core->vdd_class,
+ core->new_vdd_class_vote);
+ core->new_vdd_class_vote = core->vdd_class_vote;
+ }
+ }
+}
+
+static void clk_cleanup_vdd_votes(void)
+{
+ struct clk_core *core, *temp;
+
+ list_for_each_entry_safe(core, temp, &clk_rate_change_list,
+ rate_change_node) {
+ core->vdd_class_vote = core->new_vdd_class_vote;
+ list_del_init(&core->rate_change_node);
+ }
+}
+
static int clk_core_set_rate_nolock(struct clk_core *core,
unsigned long req_rate)
{
struct clk_core *top, *fail_clk;
unsigned long rate;
int ret = 0;
+ /*
+ * The prepare lock ensures mutual exclusion with other tasks.
+ * set_rate_nesting_count is a static so that it can be incremented in
+ * the case of reentrancy caused by a set_rate() ops callback itself
+ * calling clk_set_rate(). That way, the voltage level votes for the
+ * old rates are safely removed when the original invocation of this
+ * function completes.
+ */
+ static unsigned int set_rate_nesting_count;
if (!core)
return 0;
@@ -1911,33 +2417,65 @@ static int clk_core_set_rate_nolock(struct clk_core *core,
if (clk_core_rate_is_protected(core))
return -EBUSY;
+ set_rate_nesting_count++;
+
/* calculate new rates and get the topmost changed clock */
top = clk_calc_new_rates(core, req_rate);
- if (!top)
- return -EINVAL;
+ if (!top) {
+ ret = -EINVAL;
+ goto pre_rate_change_err;
+ }
ret = clk_pm_runtime_get(core);
if (ret)
- return ret;
+ goto pre_rate_change_err;
/* notify that we are about to change rates */
fail_clk = clk_propagate_rate_change(top, PRE_RATE_CHANGE);
if (fail_clk) {
- pr_debug("%s: failed to set %s rate\n", __func__,
- fail_clk->name);
+ pr_debug("%s: failed to set %s clock to run at %lu\n", __func__,
+ fail_clk->name, req_rate);
clk_propagate_rate_change(top, ABORT_RATE_CHANGE);
ret = -EBUSY;
- goto err;
+ clk_pm_runtime_put(core);
+ goto pre_rate_change_err;
}
/* change the rates */
- clk_change_rate(top);
+ ret = clk_change_rate(top);
+ set_rate_nesting_count--;
+ if (ret) {
+ pr_err("%s: failed to set %s clock to run at %lu\n", __func__,
+ top->name, req_rate);
+ clk_propagate_rate_change(top, ABORT_RATE_CHANGE);
+ clk_vote_safe_vdd();
+ goto post_rate_change_err;
+ }
core->req_rate = req_rate;
-err:
+
+post_rate_change_err:
+ /*
+ * Only remove vdd_class level votes for old clock rates after all
+ * nested clk_set_rate() calls have completed.
+ */
+ if (set_rate_nesting_count == 0) {
+ ret |= clk_unvote_old_rate_vdd();
+ clk_cleanup_vdd_votes();
+ }
+
clk_pm_runtime_put(core);
return ret;
+
+pre_rate_change_err:
+ set_rate_nesting_count--;
+ if (set_rate_nesting_count == 0) {
+ clk_unvote_new_rate_vdd();
+ clk_cleanup_vdd_votes();
+ }
+
+ return ret;
}
/**
@@ -2225,7 +2763,7 @@ static int clk_core_set_parent_nolock(struct clk_core *core,
if (!core)
return 0;
- if (core->parent == parent)
+ if (core->parent == parent && !(core->flags & CLK_IS_MEASURE))
return 0;
/* verify ops for for multi-parent clks */
@@ -2614,6 +3152,23 @@ bool clk_is_match(const struct clk *p, const struct clk *q)
}
EXPORT_SYMBOL_GPL(clk_is_match);
+int clk_set_flags(struct clk *clk, unsigned long flags)
+{
+ if (!clk)
+ return 0;
+
+ if (!clk->core->ops->set_flags)
+ return -EINVAL;
+
+ return clk->core->ops->set_flags(clk->core->hw, flags);
+}
+EXPORT_SYMBOL_GPL(clk_set_flags);
+
+void clk_debug_print_hw(struct clk_core *clk, struct seq_file *f)
+{
+}
+EXPORT_SYMBOL(clk_debug_print_hw);
+
/*** debugfs support ***/
#ifdef CONFIG_DEBUG_FS
@@ -3062,6 +3617,8 @@ static int __clk_core_init(struct clk_core *core)
rate = 0;
core->rate = core->req_rate = rate;
+ core->boot_enabled = clk_core_is_enabled(core);
+
/*
* Enable CLK_IS_CRITICAL clocks so newly added critical clocks
* don't get accidentally disabled when walking the orphan tree and
@@ -3070,19 +3627,15 @@ static int __clk_core_init(struct clk_core *core)
if (core->flags & CLK_IS_CRITICAL) {
unsigned long flags;
- ret = clk_core_prepare(core);
- if (ret)
- goto out;
+ clk_core_prepare(core);
flags = clk_enable_lock();
- ret = clk_core_enable(core);
+ clk_core_enable(core);
clk_enable_unlock(flags);
- if (ret) {
- clk_core_unprepare(core);
- goto out;
- }
}
+ clk_core_hold_state(core);
+
/*
* walk the list of orphan clocks and reparent any that newly finds a
* parent.
@@ -3102,6 +3655,59 @@ static int __clk_core_init(struct clk_core *core)
__clk_set_parent_after(orphan, parent, NULL);
__clk_recalc_accuracies(orphan);
__clk_recalc_rates(orphan, 0);
+ __clk_core_update_orphan_hold_state(orphan);
+ }
+ }
+
+ /*
+ * optional platform-specific magic
+ *
+ * The .init callback is not used by any of the basic clock types, but
+ * exists for weird hardware that must perform initialization magic.
+ * Please consider other ways of solving initialization problems before
+ * using this callback, as its use is discouraged.
+ */
+ if (core->ops->init)
+ core->ops->init(core->hw);
+
+ if (core->flags & CLK_IS_CRITICAL) {
+ unsigned long flags;
+
+ clk_core_prepare(core);
+
+ flags = clk_enable_lock();
+ clk_core_enable(core);
+ clk_enable_unlock(flags);
+ }
+
+ /*
+ * enable clocks with the CLK_ENABLE_HAND_OFF flag set
+ *
+ * This flag causes the framework to enable the clock at registration
+ * time, which is sometimes necessary for clocks that would cause a
+ * system crash when gated (e.g. cpu, memory, etc). The prepare_count
+ * is migrated over to the first clk consumer to call clk_prepare().
+ * Similarly the clk's enable_count is migrated to the first consumer
+ * to call clk_enable().
+ */
+ if (core->flags & CLK_ENABLE_HAND_OFF) {
+ unsigned long flags;
+
+ /*
+ * Few clocks might have hardware gating which would be
+ * required to be ON before prepare/enabling the clocks. So
+ * check if the clock has been turned ON earlier and we should
+ * prepare/enable those clocks.
+ */
+ if (clk_core_is_enabled(core)) {
+ core->need_handoff_prepare = true;
+ core->need_handoff_enable = true;
+ ret = clk_core_prepare(core);
+ if (ret)
+ goto out;
+ flags = clk_enable_lock();
+ clk_core_enable(core);
+ clk_enable_unlock(flags);
}
}
@@ -3191,7 +3797,8 @@ struct clk *clk_register(struct device *dev, struct clk_hw *hw)
core->ops = hw->init->ops;
if (dev && pm_runtime_enabled(dev))
- core->dev = dev;
+ core->rpm_enabled = true;
+ core->dev = dev;
if (dev && dev->driver)
core->owner = dev->driver->owner;
core->hw = hw;
@@ -3199,6 +3806,9 @@ struct clk *clk_register(struct device *dev, struct clk_hw *hw)
core->num_parents = hw->init->num_parents;
core->min_rate = 0;
core->max_rate = ULONG_MAX;
+ core->vdd_class = hw->init->vdd_class;
+ core->rate_max = hw->init->rate_max;
+ core->num_rate_max = hw->init->num_rate_max;
hw->core = core;
/* allocate local copy in case parent_names is __initdata */
@@ -3230,6 +3840,7 @@ struct clk *clk_register(struct device *dev, struct clk_hw *hw)
};
INIT_HLIST_HEAD(&core->clks);
+ INIT_LIST_HEAD(&core->rate_change_node);
hw->clk = __clk_create_clk(hw, NULL, NULL);
if (IS_ERR(hw->clk)) {
@@ -3432,6 +4043,166 @@ static void devm_clk_hw_release(struct device *dev, void *res)
clk_hw_unregister(*(struct clk_hw **)res);
}
+#define MAX_LEN_OPP_HANDLE 50
+#define LEN_OPP_HANDLE 16
+
+static int derive_device_list(struct device **device_list,
+ struct clk_core *core,
+ struct device_node *np,
+ char *clk_handle_name, int count)
+{
+ int j;
+ struct platform_device *pdev;
+ struct device_node *dev_node;
+
+ for (j = 0; j < count; j++) {
+ device_list[j] = NULL;
+ dev_node = of_parse_phandle(np, clk_handle_name, j);
+ if (!dev_node) {
+ pr_err("Unable to get device_node pointer for %s opp-handle (%s)\n",
+ core->name, clk_handle_name);
+ return -ENODEV;
+ }
+
+ pdev = of_find_device_by_node(dev_node);
+ if (!pdev) {
+ pr_err("Unable to find platform_device node for %s opp-handle\n",
+ core->name);
+ return -ENODEV;
+ }
+ device_list[j] = &pdev->dev;
+ }
+ return 0;
+}
+
+static int clk_get_voltage(struct clk_core *core, unsigned long rate, int n)
+{
+ struct clk_vdd_class *vdd;
+ int level, corner;
+
+ /* Use the first regulator in the vdd class for the OPP table. */
+ vdd = core->vdd_class;
+ if (vdd->num_regulators > 1) {
+ corner = vdd->vdd_uv[vdd->num_regulators * n];
+ } else {
+ level = clk_find_vdd_level(core, rate);
+ if (level < 0) {
+ pr_err("Could not find vdd level\n");
+ return -EINVAL;
+ }
+ corner = vdd->vdd_uv[level];
+ }
+
+ if (!corner) {
+ pr_err("%s: Unable to find vdd level for rate %lu\n",
+ core->name, rate);
+ return -EINVAL;
+ }
+
+ return corner;
+}
+
+static int clk_add_and_print_opp(struct clk_hw *hw,
+ struct device **device_list, int count,
+ unsigned long rate, int uv, int n)
+{
+ struct clk_core *core = hw->core;
+ int j, ret = 0;
+
+ for (j = 0; j < count; j++) {
+ ret = dev_pm_opp_add(device_list[j], rate, uv);
+ if (ret) {
+ pr_err("%s: couldn't add OPP for %lu - err: %d\n",
+ core->name, rate, ret);
+ return ret;
+ }
+
+ if (n == 0 || n == core->num_rate_max - 1 ||
+ rate == clk_hw_round_rate(hw, INT_MAX))
+ pr_info("%s: set OPP pair(%lu Hz: %u uV) on %s\n",
+ core->name, rate, uv,
+ dev_name(device_list[j]));
+ }
+ return ret;
+}
+
+static void clk_populate_clock_opp_table(struct device_node *np,
+ struct clk_hw *hw)
+{
+ struct device **device_list;
+ struct clk_core *core = hw->core;
+ char clk_handle_name[MAX_LEN_OPP_HANDLE];
+ int n, len, count, uv, ret;
+ unsigned long rate = 0, rrate = 0;
+
+ if (!core || !core->num_rate_max)
+ return;
+
+ if (strlen(core->name) + LEN_OPP_HANDLE < MAX_LEN_OPP_HANDLE) {
+ ret = snprintf(clk_handle_name, ARRAY_SIZE(clk_handle_name),
+ "qcom,%s-opp-handle", core->name);
+ if (ret < strlen(core->name) + LEN_OPP_HANDLE) {
+ pr_err("%s: Failed to hold clk_handle_name\n",
+ core->name);
+ return;
+ }
+ } else {
+ pr_err("clk name (%s) too large to fit in clk_handle_name\n",
+ core->name);
+ return;
+ }
+
+ if (of_find_property(np, clk_handle_name, &len)) {
+ count = len/sizeof(u32);
+
+ device_list = kmalloc_array(count, sizeof(struct device *),
+ GFP_KERNEL);
+ if (!device_list)
+ return;
+
+ ret = derive_device_list(device_list, core, np,
+ clk_handle_name, count);
+ if (ret < 0) {
+ pr_err("Failed to fill device_list for %s\n",
+ clk_handle_name);
+ goto err_derive_device_list;
+ }
+ } else {
+ pr_debug("Unable to find %s\n", clk_handle_name);
+ return;
+ }
+
+ for (n = 0; ; n++) {
+ rrate = clk_hw_round_rate(hw, rate + 1);
+ if (!rrate) {
+ pr_err("clk_round_rate failed for %s\n",
+ core->name);
+ goto err_derive_device_list;
+ }
+
+ /*
+ * If clk_hw_round_rate gives the same value on consecutive
+ * iterations, exit the loop since we're at the maximum clock
+ * frequency.
+ */
+ if (rate == rrate)
+ break;
+ rate = rrate;
+
+ uv = clk_get_voltage(core, rate, n);
+ if (uv < 0)
+ goto err_derive_device_list;
+
+ ret = clk_add_and_print_opp(hw, device_list, count,
+ rate, uv, n);
+ if (ret)
+ goto err_derive_device_list;
+ }
+
+err_derive_device_list:
+ kfree(device_list);
+}
+
/**
* devm_clk_register - resource managed clk_register()
* @dev: device that is registering this clock
@@ -3458,6 +4229,7 @@ struct clk *devm_clk_register(struct device *dev, struct clk_hw *hw)
devres_free(clkp);
}
+ clk_populate_clock_opp_table(dev->of_node, hw);
return clk;
}
EXPORT_SYMBOL_GPL(devm_clk_register);
@@ -3488,6 +4260,7 @@ int devm_clk_hw_register(struct device *dev, struct clk_hw *hw)
devres_free(hwp);
}
+ clk_populate_clock_opp_table(dev->of_node, hw);
return ret;
}
EXPORT_SYMBOL_GPL(devm_clk_hw_register);
diff --git a/drivers/clk/davinci/da8xx-cfgchip.c b/drivers/clk/davinci/da8xx-cfgchip.c
index d1bbee1..ebd8a45 100644
--- a/drivers/clk/davinci/da8xx-cfgchip.c
+++ b/drivers/clk/davinci/da8xx-cfgchip.c
@@ -91,7 +91,7 @@ da8xx_cfgchip_gate_clk_register(struct device *dev,
struct clk *parent;
const char *parent_name;
struct da8xx_cfgchip_gate_clk *gate;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
parent = devm_clk_get(dev, NULL);
@@ -242,7 +242,7 @@ da8xx_cfgchip_mux_clk_register(struct device *dev,
{
const char * const parent_names[] = { info->parent0, info->parent1 };
struct da8xx_cfgchip_mux_clk *mux;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
mux = devm_kzalloc(dev, sizeof(*mux), GFP_KERNEL);
@@ -507,7 +507,7 @@ da8xx_cfgchip_register_usb0_clk48(struct device *dev,
const char * const parent_names[] = { "usb_refclkin", "pll0_auxclk" };
struct clk *fck_clk;
struct da8xx_usb0_clk48 *usb0;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
fck_clk = devm_clk_get(dev, "fck");
@@ -581,7 +581,7 @@ da8xx_cfgchip_register_usb1_clk48(struct device *dev,
{
const char * const parent_names[] = { "usb0_clk48", "usb_refclkin" };
struct da8xx_usb1_clk48 *usb1;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
usb1 = devm_kzalloc(dev, sizeof(*usb1), GFP_KERNEL);
diff --git a/drivers/clk/davinci/pll.c b/drivers/clk/davinci/pll.c
index 796b428..4477e0c 100644
--- a/drivers/clk/davinci/pll.c
+++ b/drivers/clk/davinci/pll.c
@@ -373,7 +373,7 @@ struct clk *davinci_pll_clk_register(struct device *dev,
char pllout_name[MAX_NAME_SIZE];
char postdiv_name[MAX_NAME_SIZE];
char pllen_name[MAX_NAME_SIZE];
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct davinci_pll_clk *pllout;
struct davinci_pllen_clk *pllen;
struct clk *oscin_clk = NULL;
diff --git a/drivers/clk/davinci/psc.c b/drivers/clk/davinci/psc.c
index fffbed5..4fc13e4 100644
--- a/drivers/clk/davinci/psc.c
+++ b/drivers/clk/davinci/psc.c
@@ -235,7 +235,7 @@ davinci_lpsc_clk_register(struct device *dev, const char *name,
const char *parent_name, struct regmap *regmap,
u32 md, u32 pd, u32 flags)
{
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct davinci_lpsc_clk *lpsc;
int ret;
bool is_on;
diff --git a/drivers/clk/h8300/clk-h8s2678.c b/drivers/clk/h8300/clk-h8s2678.c
index b68045d..ab5e4f5 100644
--- a/drivers/clk/h8300/clk-h8s2678.c
+++ b/drivers/clk/h8300/clk-h8s2678.c
@@ -88,7 +88,7 @@ static void __init h8s2678_pll_clk_setup(struct device_node *node)
const char *clk_name = node->name;
const char *parent_name;
struct pll_clock *pll_clock;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
num_parents = of_clk_get_parent_count(node);
diff --git a/drivers/clk/hisilicon/clk-hi3620.c b/drivers/clk/hisilicon/clk-hi3620.c
index 77072c7..2a3d6b9 100644
--- a/drivers/clk/hisilicon/clk-hi3620.c
+++ b/drivers/clk/hisilicon/clk-hi3620.c
@@ -427,7 +427,7 @@ static struct clk *hisi_register_clk_mmc(struct hisi_mmc_clock *mmc_clk,
{
struct clk_mmc *mclk;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
mclk = kzalloc(sizeof(*mclk), GFP_KERNEL);
if (!mclk)
diff --git a/drivers/clk/hisilicon/clk-hi6220-stub.c b/drivers/clk/hisilicon/clk-hi6220-stub.c
index 329a092..cfccf02 100644
--- a/drivers/clk/hisilicon/clk-hi6220-stub.c
+++ b/drivers/clk/hisilicon/clk-hi6220-stub.c
@@ -197,7 +197,7 @@ static const struct clk_ops hi6220_stub_clk_ops = {
static int hi6220_stub_clk_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct hi6220_stub_clk *stub_clk;
struct clk *clk;
struct device_node *np = pdev->dev.of_node;
diff --git a/drivers/clk/hisilicon/clk-hisi-phase.c b/drivers/clk/hisilicon/clk-hisi-phase.c
index 5bce929..183c557 100644
--- a/drivers/clk/hisilicon/clk-hisi-phase.c
+++ b/drivers/clk/hisilicon/clk-hisi-phase.c
@@ -95,7 +95,7 @@ struct clk *clk_register_hisi_phase(struct device *dev,
void __iomem *base, spinlock_t *lock)
{
struct clk_hisi_phase *phase;
- struct clk_init_data init;
+ struct clk_init_data init = {};
phase = devm_kzalloc(dev, sizeof(struct clk_hisi_phase), GFP_KERNEL);
if (!phase)
diff --git a/drivers/clk/hisilicon/clk-hix5hd2.c b/drivers/clk/hisilicon/clk-hix5hd2.c
index 9584f0c..0e572a0 100644
--- a/drivers/clk/hisilicon/clk-hix5hd2.c
+++ b/drivers/clk/hisilicon/clk-hix5hd2.c
@@ -262,7 +262,7 @@ hix5hd2_clk_register_complex(struct hix5hd2_complex_clock *clks, int nums,
for (i = 0; i < nums; i++) {
struct hix5hd2_clk_complex *p_clk;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
p_clk = kzalloc(sizeof(*p_clk), GFP_KERNEL);
if (!p_clk)
diff --git a/drivers/clk/hisilicon/clkdivider-hi6220.c b/drivers/clk/hisilicon/clkdivider-hi6220.c
index 9f46cf9..535600f 100644
--- a/drivers/clk/hisilicon/clkdivider-hi6220.c
+++ b/drivers/clk/hisilicon/clkdivider-hi6220.c
@@ -107,7 +107,7 @@ struct clk *hi6220_register_clkdiv(struct device *dev, const char *name,
{
struct hi6220_clk_divider *div;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk_div_table *table;
u32 max_div, min_div;
int i;
diff --git a/drivers/clk/hisilicon/clkgate-separated.c b/drivers/clk/hisilicon/clkgate-separated.c
index f36bdef..5f9765e 100644
--- a/drivers/clk/hisilicon/clkgate-separated.c
+++ b/drivers/clk/hisilicon/clkgate-separated.c
@@ -102,7 +102,7 @@ struct clk *hisi_register_clkgate_sep(struct device *dev, const char *name,
{
struct clkgate_separated *sclk;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
sclk = kzalloc(sizeof(*sclk), GFP_KERNEL);
if (!sclk)
diff --git a/drivers/clk/imx/clk-busy.c b/drivers/clk/imx/clk-busy.c
index e695622..42a5cf7 100644
--- a/drivers/clk/imx/clk-busy.c
+++ b/drivers/clk/imx/clk-busy.c
@@ -84,7 +84,7 @@ struct clk *imx_clk_busy_divider(const char *name, const char *parent_name,
{
struct clk_busy_divider *busy;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
busy = kzalloc(sizeof(*busy), GFP_KERNEL);
if (!busy)
@@ -158,7 +158,7 @@ struct clk *imx_clk_busy_mux(const char *name, void __iomem *reg, u8 shift,
{
struct clk_busy_mux *busy;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
busy = kzalloc(sizeof(*busy), GFP_KERNEL);
if (!busy)
diff --git a/drivers/clk/imx/clk-cpu.c b/drivers/clk/imx/clk-cpu.c
index 9d46eac..0be41b4 100644
--- a/drivers/clk/imx/clk-cpu.c
+++ b/drivers/clk/imx/clk-cpu.c
@@ -81,7 +81,7 @@ struct clk *imx_clk_cpu(const char *name, const char *parent_name,
{
struct clk_cpu *cpu;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
cpu = kzalloc(sizeof(*cpu), GFP_KERNEL);
if (!cpu)
diff --git a/drivers/clk/imx/clk-fixup-div.c b/drivers/clk/imx/clk-fixup-div.c
index ce572273..9dbc025 100644
--- a/drivers/clk/imx/clk-fixup-div.c
+++ b/drivers/clk/imx/clk-fixup-div.c
@@ -97,7 +97,7 @@ struct clk *imx_clk_fixup_divider(const char *name, const char *parent,
{
struct clk_fixup_div *fixup_div;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
if (!fixup)
return ERR_PTR(-EINVAL);
diff --git a/drivers/clk/imx/clk-fixup-mux.c b/drivers/clk/imx/clk-fixup-mux.c
index 44817c1..3478b44 100644
--- a/drivers/clk/imx/clk-fixup-mux.c
+++ b/drivers/clk/imx/clk-fixup-mux.c
@@ -75,7 +75,7 @@ struct clk *imx_clk_fixup_mux(const char *name, void __iomem *reg,
{
struct clk_fixup_mux *fixup_mux;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
if (!fixup)
return ERR_PTR(-EINVAL);
diff --git a/drivers/clk/imx/clk-gate-exclusive.c b/drivers/clk/imx/clk-gate-exclusive.c
index 3bd9dee..0c8cbaa 100644
--- a/drivers/clk/imx/clk-gate-exclusive.c
+++ b/drivers/clk/imx/clk-gate-exclusive.c
@@ -64,7 +64,7 @@ struct clk *imx_clk_gate_exclusive(const char *name, const char *parent,
struct clk_gate_exclusive *exgate;
struct clk_gate *gate;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
if (exclusive_mask == 0)
return ERR_PTR(-EINVAL);
diff --git a/drivers/clk/imx/clk-gate2.c b/drivers/clk/imx/clk-gate2.c
index 60fc9d7..dda6114 100644
--- a/drivers/clk/imx/clk-gate2.c
+++ b/drivers/clk/imx/clk-gate2.c
@@ -133,7 +133,7 @@ struct clk *clk_register_gate2(struct device *dev, const char *name,
{
struct clk_gate2 *gate;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
gate = kzalloc(sizeof(struct clk_gate2), GFP_KERNEL);
if (!gate)
diff --git a/drivers/clk/imx/clk-pfd.c b/drivers/clk/imx/clk-pfd.c
index 04a3e78..2918ca2 100644
--- a/drivers/clk/imx/clk-pfd.c
+++ b/drivers/clk/imx/clk-pfd.c
@@ -132,7 +132,7 @@ struct clk *imx_clk_pfd(const char *name, const char *parent_name,
{
struct clk_pfd *pfd;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
pfd = kzalloc(sizeof(*pfd), GFP_KERNEL);
if (!pfd)
diff --git a/drivers/clk/imx/clk-pllv1.c b/drivers/clk/imx/clk-pllv1.c
index 4ba9973..b115bf7 100644
--- a/drivers/clk/imx/clk-pllv1.c
+++ b/drivers/clk/imx/clk-pllv1.c
@@ -116,7 +116,7 @@ struct clk *imx_clk_pllv1(enum imx_pllv1_type type, const char *name,
{
struct clk_pllv1 *pll;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
pll = kmalloc(sizeof(*pll), GFP_KERNEL);
if (!pll)
diff --git a/drivers/clk/imx/clk-pllv2.c b/drivers/clk/imx/clk-pllv2.c
index eeba3cb..6d4ec48 100644
--- a/drivers/clk/imx/clk-pllv2.c
+++ b/drivers/clk/imx/clk-pllv2.c
@@ -244,7 +244,7 @@ struct clk *imx_clk_pllv2(const char *name, const char *parent,
{
struct clk_pllv2 *pll;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
pll = kzalloc(sizeof(*pll), GFP_KERNEL);
if (!pll)
diff --git a/drivers/clk/imx/clk-pllv3.c b/drivers/clk/imx/clk-pllv3.c
index 9af62ee..ee90473 100644
--- a/drivers/clk/imx/clk-pllv3.c
+++ b/drivers/clk/imx/clk-pllv3.c
@@ -419,7 +419,7 @@ struct clk *imx_clk_pllv3(enum imx_pllv3_type type, const char *name,
struct clk_pllv3 *pll;
const struct clk_ops *ops;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
pll = kzalloc(sizeof(*pll), GFP_KERNEL);
if (!pll)
diff --git a/drivers/clk/keystone/gate.c b/drivers/clk/keystone/gate.c
index aed5af2..306bd91 100644
--- a/drivers/clk/keystone/gate.c
+++ b/drivers/clk/keystone/gate.c
@@ -168,7 +168,7 @@ static struct clk *clk_register_psc(struct device *dev,
struct clk_psc_data *psc_data,
spinlock_t *lock)
{
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk_psc *psc;
struct clk *clk;
diff --git a/drivers/clk/keystone/pll.c b/drivers/clk/keystone/pll.c
index e7e840f..6ec8f27 100644
--- a/drivers/clk/keystone/pll.c
+++ b/drivers/clk/keystone/pll.c
@@ -126,7 +126,7 @@ static struct clk *clk_register_pll(struct device *dev,
const char *parent_name,
struct clk_pll_data *pll_data)
{
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk_pll *pll;
struct clk *clk;
diff --git a/drivers/clk/loongson1/clk.c b/drivers/clk/loongson1/clk.c
index cfcfd14..41287a1 100644
--- a/drivers/clk/loongson1/clk.c
+++ b/drivers/clk/loongson1/clk.c
@@ -18,7 +18,7 @@ struct clk_hw *__init clk_hw_register_pll(struct device *dev,
{
int ret;
struct clk_hw *hw;
- struct clk_init_data init;
+ struct clk_init_data init = {};
/* allocate the divider */
hw = kzalloc(sizeof(*hw), GFP_KERNEL);
diff --git a/drivers/clk/mediatek/clk-cpumux.c b/drivers/clk/mediatek/clk-cpumux.c
index 6c7eaa2..6cbc430 100644
--- a/drivers/clk/mediatek/clk-cpumux.c
+++ b/drivers/clk/mediatek/clk-cpumux.c
@@ -59,7 +59,7 @@ mtk_clk_register_cpumux(const struct mtk_composite *mux,
{
struct mtk_clk_cpumux *cpumux;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
cpumux = kzalloc(sizeof(*cpumux), GFP_KERNEL);
if (!cpumux)
diff --git a/drivers/clk/meson/axg-audio.c b/drivers/clk/meson/axg-audio.c
index a0ed41e..28b8c8dc 100644
--- a/drivers/clk/meson/axg-audio.c
+++ b/drivers/clk/meson/axg-audio.c
@@ -655,7 +655,7 @@ static struct clk_hw *axg_clk_hw_register_bypass(struct device *dev,
const char *parent_name)
{
struct clk_hw *hw;
- struct clk_init_data init;
+ struct clk_init_data init = {};
char *clk_name;
int ret;
diff --git a/drivers/clk/mmp/clk-apbc.c b/drivers/clk/mmp/clk-apbc.c
index fb294ad..b645b88 100644
--- a/drivers/clk/mmp/clk-apbc.c
+++ b/drivers/clk/mmp/clk-apbc.c
@@ -125,7 +125,7 @@ struct clk *mmp_clk_register_apbc(const char *name, const char *parent_name,
{
struct clk_apbc *apbc;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
apbc = kzalloc(sizeof(*apbc), GFP_KERNEL);
if (!apbc)
diff --git a/drivers/clk/mmp/clk-apmu.c b/drivers/clk/mmp/clk-apmu.c
index b7ce8f5..19d17c2 100644
--- a/drivers/clk/mmp/clk-apmu.c
+++ b/drivers/clk/mmp/clk-apmu.c
@@ -70,7 +70,7 @@ struct clk *mmp_clk_register_apmu(const char *name, const char *parent_name,
{
struct clk_apmu *apmu;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
apmu = kzalloc(sizeof(*apmu), GFP_KERNEL);
if (!apmu)
diff --git a/drivers/clk/mmp/clk-frac.c b/drivers/clk/mmp/clk-frac.c
index cb43d54..e91ab6ac 100644
--- a/drivers/clk/mmp/clk-frac.c
+++ b/drivers/clk/mmp/clk-frac.c
@@ -163,7 +163,7 @@ struct clk *mmp_clk_register_factor(const char *name, const char *parent_name,
unsigned int ftbl_cnt, spinlock_t *lock)
{
struct mmp_clk_factor *factor;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk *clk;
if (!masks) {
diff --git a/drivers/clk/mmp/clk-gate.c b/drivers/clk/mmp/clk-gate.c
index 7355595..76217e5 100644
--- a/drivers/clk/mmp/clk-gate.c
+++ b/drivers/clk/mmp/clk-gate.c
@@ -99,7 +99,7 @@ struct clk *mmp_clk_register_gate(struct device *dev, const char *name,
{
struct mmp_clk_gate *gate;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
/* allocate the gate */
gate = kzalloc(sizeof(*gate), GFP_KERNEL);
diff --git a/drivers/clk/mmp/clk-mix.c b/drivers/clk/mmp/clk-mix.c
index 90814b2..80e4e8e 100644
--- a/drivers/clk/mmp/clk-mix.c
+++ b/drivers/clk/mmp/clk-mix.c
@@ -447,7 +447,7 @@ struct clk *mmp_clk_register_mix(struct device *dev,
{
struct mmp_clk_mix *mix;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
size_t table_bytes;
mix = kzalloc(sizeof(*mix), GFP_KERNEL);
diff --git a/drivers/clk/mvebu/clk-corediv.c b/drivers/clk/mvebu/clk-corediv.c
index 68f05c5..97f532a 100644
--- a/drivers/clk/mvebu/clk-corediv.c
+++ b/drivers/clk/mvebu/clk-corediv.c
@@ -252,7 +252,7 @@ static void __init
mvebu_corediv_clk_init(struct device_node *node,
const struct clk_corediv_soc_desc *soc_desc)
{
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk_corediv *corediv;
struct clk **clks;
void __iomem *base;
diff --git a/drivers/clk/mvebu/clk-cpu.c b/drivers/clk/mvebu/clk-cpu.c
index 072aa38..2e77595 100644
--- a/drivers/clk/mvebu/clk-cpu.c
+++ b/drivers/clk/mvebu/clk-cpu.c
@@ -195,7 +195,7 @@ static void __init of_cpu_clk_setup(struct device_node *node)
goto clks_out;
for_each_node_by_type(dn, "cpu") {
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk *clk;
char *clk_name = kzalloc(5, GFP_KERNEL);
int cpu, err;
diff --git a/drivers/clk/mvebu/cp110-system-controller.c b/drivers/clk/mvebu/cp110-system-controller.c
index 0153c76..796f166 100644
--- a/drivers/clk/mvebu/cp110-system-controller.c
+++ b/drivers/clk/mvebu/cp110-system-controller.c
@@ -160,7 +160,7 @@ static struct clk_hw *cp110_register_gate(const char *name,
{
struct cp110_gate_clk *gate;
struct clk_hw *hw;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
gate = kzalloc(sizeof(*gate), GFP_KERNEL);
diff --git a/drivers/clk/mxs/clk-div.c b/drivers/clk/mxs/clk-div.c
index ccebd01..a8ce228 100644
--- a/drivers/clk/mxs/clk-div.c
+++ b/drivers/clk/mxs/clk-div.c
@@ -78,7 +78,7 @@ struct clk *mxs_clk_div(const char *name, const char *parent_name,
{
struct clk_div *div;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
div = kzalloc(sizeof(*div), GFP_KERNEL);
if (!div)
diff --git a/drivers/clk/mxs/clk-frac.c b/drivers/clk/mxs/clk-frac.c
index 27b3372..d09e3c3 100644
--- a/drivers/clk/mxs/clk-frac.c
+++ b/drivers/clk/mxs/clk-frac.c
@@ -118,7 +118,7 @@ struct clk *mxs_clk_frac(const char *name, const char *parent_name,
{
struct clk_frac *frac;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
frac = kzalloc(sizeof(*frac), GFP_KERNEL);
if (!frac)
diff --git a/drivers/clk/mxs/clk-pll.c b/drivers/clk/mxs/clk-pll.c
index d4ca79a..8597602 100644
--- a/drivers/clk/mxs/clk-pll.c
+++ b/drivers/clk/mxs/clk-pll.c
@@ -90,7 +90,7 @@ struct clk *mxs_clk_pll(const char *name, const char *parent_name,
{
struct clk_pll *pll;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
pll = kzalloc(sizeof(*pll), GFP_KERNEL);
if (!pll)
diff --git a/drivers/clk/mxs/clk-ref.c b/drivers/clk/mxs/clk-ref.c
index 495f99b..06ff064 100644
--- a/drivers/clk/mxs/clk-ref.c
+++ b/drivers/clk/mxs/clk-ref.c
@@ -129,7 +129,7 @@ struct clk *mxs_clk_ref(const char *name, const char *parent_name,
{
struct clk_ref *ref;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
ref = kzalloc(sizeof(*ref), GFP_KERNEL);
if (!ref)
diff --git a/drivers/clk/nxp/clk-lpc18xx-creg.c b/drivers/clk/nxp/clk-lpc18xx-creg.c
index c6e802e..3fb841b 100644
--- a/drivers/clk/nxp/clk-lpc18xx-creg.c
+++ b/drivers/clk/nxp/clk-lpc18xx-creg.c
@@ -141,7 +141,7 @@ static struct clk *clk_register_creg_clk(struct device *dev,
const char **parent_name,
struct regmap *syscon)
{
- struct clk_init_data init;
+ struct clk_init_data init = {};
init.ops = creg_clk->ops;
init.name = creg_clk->name;
diff --git a/drivers/clk/pistachio/clk-pll.c b/drivers/clk/pistachio/clk-pll.c
index 7e8daab..0132276 100644
--- a/drivers/clk/pistachio/clk-pll.c
+++ b/drivers/clk/pistachio/clk-pll.c
@@ -453,7 +453,7 @@ static struct clk *pll_register(const char *name, const char *parent_name,
unsigned int nr_rates)
{
struct pistachio_clk_pll *pll;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk *clk;
pll = kzalloc(sizeof(*pll), GFP_KERNEL);
diff --git a/drivers/clk/renesas/clk-div6.c b/drivers/clk/renesas/clk-div6.c
index 9febbf4..64651b5 100644
--- a/drivers/clk/renesas/clk-div6.c
+++ b/drivers/clk/renesas/clk-div6.c
@@ -219,7 +219,7 @@ struct clk * __init cpg_div6_register(const char *name,
struct raw_notifier_head *notifiers)
{
unsigned int valid_parents;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct div6_clock *clock;
struct clk *clk;
unsigned int i;
diff --git a/drivers/clk/renesas/clk-mstp.c b/drivers/clk/renesas/clk-mstp.c
index 45d94fb..45f0658 100644
--- a/drivers/clk/renesas/clk-mstp.c
+++ b/drivers/clk/renesas/clk-mstp.c
@@ -151,7 +151,7 @@ static struct clk * __init cpg_mstp_clock_register(const char *name,
const char *parent_name, unsigned int index,
struct mstp_clock_group *group)
{
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct mstp_clock *clock;
struct clk *clk;
diff --git a/drivers/clk/renesas/clk-rcar-gen2.c b/drivers/clk/renesas/clk-rcar-gen2.c
index bccd62f..67cc086 100644
--- a/drivers/clk/renesas/clk-rcar-gen2.c
+++ b/drivers/clk/renesas/clk-rcar-gen2.c
@@ -138,7 +138,7 @@ static const struct clk_ops cpg_z_clk_ops = {
static struct clk * __init cpg_z_clk_register(struct rcar_gen2_cpg *cpg)
{
static const char *parent_name = "pll0";
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct cpg_z_clk *zclk;
struct clk *clk;
diff --git a/drivers/clk/renesas/r9a06g032-clocks.c b/drivers/clk/renesas/r9a06g032-clocks.c
index 6e03b467..63eb651 100644
--- a/drivers/clk/renesas/r9a06g032-clocks.c
+++ b/drivers/clk/renesas/r9a06g032-clocks.c
@@ -416,7 +416,7 @@ r9a06g032_register_gate(struct r9a06g032_priv *clocks,
{
struct clk *clk;
struct r9a06g032_clk_gate *g;
- struct clk_init_data init;
+ struct clk_init_data init = {};
g = kzalloc(sizeof(*g), GFP_KERNEL);
if (!g)
@@ -586,7 +586,7 @@ r9a06g032_register_div(struct r9a06g032_priv *clocks,
{
struct r9a06g032_clk_div *div;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
unsigned int i;
div = kzalloc(sizeof(*div), GFP_KERNEL);
@@ -670,7 +670,7 @@ r9a06g032_register_bitsel(struct r9a06g032_priv *clocks,
{
struct clk *clk;
struct r9a06g032_clk_bitsel *g;
- struct clk_init_data init;
+ struct clk_init_data init = {};
const char *names[2];
/* allocate the gate */
@@ -761,7 +761,7 @@ r9a06g032_register_dualgate(struct r9a06g032_priv *clocks,
{
struct r9a06g032_clk_dualgate *g;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
/* allocate the gate */
g = kzalloc(sizeof(*g), GFP_KERNEL);
diff --git a/drivers/clk/renesas/rcar-gen2-cpg.c b/drivers/clk/renesas/rcar-gen2-cpg.c
index daf88bc..9080caa 100644
--- a/drivers/clk/renesas/rcar-gen2-cpg.c
+++ b/drivers/clk/renesas/rcar-gen2-cpg.c
@@ -137,7 +137,7 @@ static struct clk * __init cpg_z_clk_register(const char *name,
const char *parent_name,
void __iomem *base)
{
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct cpg_z_clk *zclk;
struct clk *clk;
diff --git a/drivers/clk/renesas/rcar-gen3-cpg.c b/drivers/clk/renesas/rcar-gen3-cpg.c
index 9ace7d3..9541288 100644
--- a/drivers/clk/renesas/rcar-gen3-cpg.c
+++ b/drivers/clk/renesas/rcar-gen3-cpg.c
@@ -170,7 +170,7 @@ static struct clk * __init cpg_z_clk_register(const char *name,
void __iomem *reg,
unsigned long mask)
{
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct cpg_z_clk *zclk;
struct clk *clk;
@@ -357,7 +357,7 @@ static struct clk * __init cpg_sd_clk_register(const struct cpg_core_clk *core,
void __iomem *base, const char *parent_name,
struct raw_notifier_head *notifiers)
{
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct sd_clock *clock;
struct clk *clk;
unsigned int i;
diff --git a/drivers/clk/renesas/rcar-usb2-clock-sel.c b/drivers/clk/renesas/rcar-usb2-clock-sel.c
index 6cd030a..2c3c54a 100644
--- a/drivers/clk/renesas/rcar-usb2-clock-sel.c
+++ b/drivers/clk/renesas/rcar-usb2-clock-sel.c
@@ -121,7 +121,7 @@ static int rcar_usb2_clock_sel_probe(struct platform_device *pdev)
struct usb2_clock_sel_priv *priv;
struct resource *res;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
diff --git a/drivers/clk/renesas/renesas-cpg-mssr.c b/drivers/clk/renesas/renesas-cpg-mssr.c
index d7a2ad6..7928925 100644
--- a/drivers/clk/renesas/renesas-cpg-mssr.c
+++ b/drivers/clk/renesas/renesas-cpg-mssr.c
@@ -343,7 +343,7 @@ static void __init cpg_mssr_register_mod_clk(const struct mssr_mod_clk *mod,
struct mstp_clock *clock = NULL;
struct device *dev = priv->dev;
unsigned int id = mod->id;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk *parent, *clk;
const char *parent_name;
unsigned int i;
diff --git a/drivers/clk/rockchip/clk-cpu.c b/drivers/clk/rockchip/clk-cpu.c
index 32c19c0f..2adac25 100644
--- a/drivers/clk/rockchip/clk-cpu.c
+++ b/drivers/clk/rockchip/clk-cpu.c
@@ -253,7 +253,7 @@ struct clk *rockchip_clk_register_cpuclk(const char *name,
int nrates, void __iomem *reg_base, spinlock_t *lock)
{
struct rockchip_cpuclk *cpuclk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk *clk, *cclk;
int ret;
diff --git a/drivers/clk/rockchip/clk-ddr.c b/drivers/clk/rockchip/clk-ddr.c
index ebce526..56fdff1 100644
--- a/drivers/clk/rockchip/clk-ddr.c
+++ b/drivers/clk/rockchip/clk-ddr.c
@@ -105,7 +105,7 @@ struct clk *rockchip_clk_register_ddrclk(const char *name, int flags,
spinlock_t *lock)
{
struct rockchip_ddrclk *ddrclk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk *clk;
ddrclk = kzalloc(sizeof(*ddrclk), GFP_KERNEL);
diff --git a/drivers/clk/rockchip/clk-inverter.c b/drivers/clk/rockchip/clk-inverter.c
index dcb6e37..269da99 100644
--- a/drivers/clk/rockchip/clk-inverter.c
+++ b/drivers/clk/rockchip/clk-inverter.c
@@ -84,7 +84,7 @@ struct clk *rockchip_clk_register_inverter(const char *name,
void __iomem *reg, int shift, int flags,
spinlock_t *lock)
{
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct rockchip_inv_clock *inv_clock;
struct clk *clk;
diff --git a/drivers/clk/rockchip/clk-mmc-phase.c b/drivers/clk/rockchip/clk-mmc-phase.c
index dbec842..f06d12e 100644
--- a/drivers/clk/rockchip/clk-mmc-phase.c
+++ b/drivers/clk/rockchip/clk-mmc-phase.c
@@ -201,7 +201,7 @@ struct clk *rockchip_clk_register_mmc(const char *name,
const char *const *parent_names, u8 num_parents,
void __iomem *reg, int shift)
{
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct rockchip_mmc_clock *mmc_clock;
struct clk *clk;
int ret;
diff --git a/drivers/clk/rockchip/clk-muxgrf.c b/drivers/clk/rockchip/clk-muxgrf.c
index 4f29118..2ecc62e 100644
--- a/drivers/clk/rockchip/clk-muxgrf.c
+++ b/drivers/clk/rockchip/clk-muxgrf.c
@@ -69,7 +69,7 @@ struct clk *rockchip_clk_register_muxgrf(const char *name,
int shift, int width, int mux_flags)
{
struct rockchip_muxgrf_clock *muxgrf_clock;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk *clk;
if (IS_ERR(regmap)) {
diff --git a/drivers/clk/rockchip/clk-pll.c b/drivers/clk/rockchip/clk-pll.c
index dd0433d..40f52ff 100644
--- a/drivers/clk/rockchip/clk-pll.c
+++ b/drivers/clk/rockchip/clk-pll.c
@@ -846,7 +846,7 @@ struct clk *rockchip_clk_register_pll(struct rockchip_clk_provider *ctx,
unsigned long flags, u8 clk_pll_flags)
{
const char *pll_parents[3];
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct rockchip_clk_pll *pll;
struct clk_mux *pll_mux;
struct clk *pll_clk, *mux_clk;
diff --git a/drivers/clk/rockchip/clk.c b/drivers/clk/rockchip/clk.c
index c3ad929..c2bfeb4 100644
--- a/drivers/clk/rockchip/clk.c
+++ b/drivers/clk/rockchip/clk.c
@@ -272,7 +272,7 @@ static struct clk *rockchip_clk_register_frac_branch(
if (child) {
struct clk_mux *frac_mux = &frac->mux;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk *mux_clk;
int ret;
diff --git a/drivers/clk/samsung/clk-cpu.c b/drivers/clk/samsung/clk-cpu.c
index a5fddeb..81250a4 100644
--- a/drivers/clk/samsung/clk-cpu.c
+++ b/drivers/clk/samsung/clk-cpu.c
@@ -409,7 +409,7 @@ int __init exynos_register_cpu_clock(struct samsung_clk_provider *ctx,
unsigned long num_cfgs, unsigned long flags)
{
struct exynos_cpuclk *cpuclk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk *parent_clk;
int ret = 0;
diff --git a/drivers/clk/samsung/clk-pll.c b/drivers/clk/samsung/clk-pll.c
index 1c4c7a3..38b5617 100644
--- a/drivers/clk/samsung/clk-pll.c
+++ b/drivers/clk/samsung/clk-pll.c
@@ -1253,7 +1253,7 @@ static void __init _samsung_clk_register_pll(struct samsung_clk_provider *ctx,
void __iomem *base)
{
struct samsung_clk_pll *pll;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret, len;
pll = kzalloc(sizeof(*pll), GFP_KERNEL);
diff --git a/drivers/clk/samsung/clk-s3c2410-dclk.c b/drivers/clk/samsung/clk-s3c2410-dclk.c
index 0d92f3e..5602baf 100644
--- a/drivers/clk/samsung/clk-s3c2410-dclk.c
+++ b/drivers/clk/samsung/clk-s3c2410-dclk.c
@@ -95,7 +95,7 @@ static struct clk_hw *s3c24xx_register_clkout(struct device *dev,
u8 shift, u32 mask)
{
struct s3c24xx_clkout *clkout;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
/* allocate the clkout */
diff --git a/drivers/clk/sirf/clk-atlas7.c b/drivers/clk/sirf/clk-atlas7.c
index be012b4..fc3e90b 100644
--- a/drivers/clk/sirf/clk-atlas7.c
+++ b/drivers/clk/sirf/clk-atlas7.c
@@ -1275,7 +1275,7 @@ atlas7_unit_clk_register(struct device *dev, const char *name,
{
struct clk *clk;
struct clk_unit *unit;
- struct clk_init_data init;
+ struct clk_init_data init = {};
unit = kzalloc(sizeof(*unit), GFP_KERNEL);
if (!unit)
diff --git a/drivers/clk/socfpga/clk-gate-a10.c b/drivers/clk/socfpga/clk-gate-a10.c
index 637e26b..5347813 100644
--- a/drivers/clk/socfpga/clk-gate-a10.c
+++ b/drivers/clk/socfpga/clk-gate-a10.c
@@ -113,7 +113,7 @@ static void __init __socfpga_gate_init(struct device_node *node,
struct socfpga_gate_clk *socfpga_clk;
const char *clk_name = node->name;
const char *parent_name[SOCFPGA_MAX_PARENTS];
- struct clk_init_data init;
+ struct clk_init_data init = {};
int rc;
socfpga_clk = kzalloc(sizeof(*socfpga_clk), GFP_KERNEL);
diff --git a/drivers/clk/socfpga/clk-gate-s10.c b/drivers/clk/socfpga/clk-gate-s10.c
index eee2d48..68381ac 100644
--- a/drivers/clk/socfpga/clk-gate-s10.c
+++ b/drivers/clk/socfpga/clk-gate-s10.c
@@ -75,7 +75,7 @@ struct clk *s10_register_gate(const char *name, const char *parent_name,
{
struct clk *clk;
struct socfpga_gate_clk *socfpga_clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
socfpga_clk = kzalloc(sizeof(*socfpga_clk), GFP_KERNEL);
if (!socfpga_clk)
diff --git a/drivers/clk/socfpga/clk-gate.c b/drivers/clk/socfpga/clk-gate.c
index 149188968..a0a515a 100644
--- a/drivers/clk/socfpga/clk-gate.c
+++ b/drivers/clk/socfpga/clk-gate.c
@@ -187,7 +187,7 @@ static void __init __socfpga_gate_init(struct device_node *node,
struct socfpga_gate_clk *socfpga_clk;
const char *clk_name = node->name;
const char *parent_name[SOCFPGA_MAX_PARENTS];
- struct clk_init_data init;
+ struct clk_init_data init = {};
int rc;
socfpga_clk = kzalloc(sizeof(*socfpga_clk), GFP_KERNEL);
diff --git a/drivers/clk/socfpga/clk-periph-a10.c b/drivers/clk/socfpga/clk-periph-a10.c
index 70993f1..b120097 100644
--- a/drivers/clk/socfpga/clk-periph-a10.c
+++ b/drivers/clk/socfpga/clk-periph-a10.c
@@ -75,7 +75,7 @@ static __init void __socfpga_periph_init(struct device_node *node,
struct socfpga_periph_clk *periph_clk;
const char *clk_name = node->name;
const char *parent_name[SOCFPGA_MAX_PARENTS];
- struct clk_init_data init;
+ struct clk_init_data init = {};
int rc;
u32 fixed_div;
u32 div_reg[3];
diff --git a/drivers/clk/socfpga/clk-periph-s10.c b/drivers/clk/socfpga/clk-periph-s10.c
index e7c877d..92a5cee 100644
--- a/drivers/clk/socfpga/clk-periph-s10.c
+++ b/drivers/clk/socfpga/clk-periph-s10.c
@@ -79,7 +79,7 @@ struct clk *s10_register_periph(const char *name, const char *parent_name,
{
struct clk *clk;
struct socfpga_periph_clk *periph_clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
periph_clk = kzalloc(sizeof(*periph_clk), GFP_KERNEL);
if (WARN_ON(!periph_clk))
@@ -113,7 +113,7 @@ struct clk *s10_register_cnt_periph(const char *name, const char *parent_name,
{
struct clk *clk;
struct socfpga_periph_clk *periph_clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
periph_clk = kzalloc(sizeof(*periph_clk), GFP_KERNEL);
if (WARN_ON(!periph_clk))
diff --git a/drivers/clk/socfpga/clk-periph.c b/drivers/clk/socfpga/clk-periph.c
index 52c883e..6f53535 100644
--- a/drivers/clk/socfpga/clk-periph.c
+++ b/drivers/clk/socfpga/clk-periph.c
@@ -65,7 +65,7 @@ static __init void __socfpga_periph_init(struct device_node *node,
struct socfpga_periph_clk *periph_clk;
const char *clk_name = node->name;
const char *parent_name[SOCFPGA_MAX_PARENTS];
- struct clk_init_data init;
+ struct clk_init_data init = {};
int rc;
u32 fixed_div;
u32 div_reg[3];
diff --git a/drivers/clk/socfpga/clk-pll-a10.c b/drivers/clk/socfpga/clk-pll-a10.c
index 269467e8..014e0f8 100644
--- a/drivers/clk/socfpga/clk-pll-a10.c
+++ b/drivers/clk/socfpga/clk-pll-a10.c
@@ -82,7 +82,7 @@ static struct clk * __init __socfpga_pll_init(struct device_node *node,
struct socfpga_pll *pll_clk;
const char *clk_name = node->name;
const char *parent_name[SOCFGPA_MAX_PARENTS];
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct device_node *clkmgr_np;
int rc;
int i = 0;
diff --git a/drivers/clk/socfpga/clk-pll-s10.c b/drivers/clk/socfpga/clk-pll-s10.c
index fc2e2839..e124b13 100644
--- a/drivers/clk/socfpga/clk-pll-s10.c
+++ b/drivers/clk/socfpga/clk-pll-s10.c
@@ -115,7 +115,7 @@ struct clk *s10_register_pll(const char *name, const char * const *parent_names,
{
struct clk *clk;
struct socfpga_pll *pll_clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
pll_clk = kzalloc(sizeof(*pll_clk), GFP_KERNEL);
if (WARN_ON(!pll_clk))
diff --git a/drivers/clk/socfpga/clk-pll.c b/drivers/clk/socfpga/clk-pll.c
index b4b44e9..5e5a2b9 100644
--- a/drivers/clk/socfpga/clk-pll.c
+++ b/drivers/clk/socfpga/clk-pll.c
@@ -88,7 +88,7 @@ static __init struct clk *__socfpga_pll_init(struct device_node *node,
struct socfpga_pll *pll_clk;
const char *clk_name = node->name;
const char *parent_name[SOCFPGA_MAX_PARENTS];
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct device_node *clkmgr_np;
int rc;
diff --git a/drivers/clk/spear/clk-aux-synth.c b/drivers/clk/spear/clk-aux-synth.c
index 9064104..9f563a9 100644
--- a/drivers/clk/spear/clk-aux-synth.c
+++ b/drivers/clk/spear/clk-aux-synth.c
@@ -140,7 +140,7 @@ struct clk *clk_register_aux(const char *aux_name, const char *gate_name,
u8 rtbl_cnt, spinlock_t *lock, struct clk **gate_clk)
{
struct clk_aux *aux;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk *clk;
if (!aux_name || !parent_name || !reg || !rtbl || !rtbl_cnt) {
diff --git a/drivers/clk/spear/clk-frac-synth.c b/drivers/clk/spear/clk-frac-synth.c
index f5be022..75fc2e5 100644
--- a/drivers/clk/spear/clk-frac-synth.c
+++ b/drivers/clk/spear/clk-frac-synth.c
@@ -126,7 +126,7 @@ struct clk *clk_register_frac(const char *name, const char *parent_name,
unsigned long flags, void __iomem *reg,
struct frac_rate_tbl *rtbl, u8 rtbl_cnt, spinlock_t *lock)
{
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk_frac *frac;
struct clk *clk;
diff --git a/drivers/clk/spear/clk-gpt-synth.c b/drivers/clk/spear/clk-gpt-synth.c
index 6ed406d..a51b0061 100644
--- a/drivers/clk/spear/clk-gpt-synth.c
+++ b/drivers/clk/spear/clk-gpt-synth.c
@@ -115,7 +115,7 @@ struct clk *clk_register_gpt(const char *name, const char *parent_name, unsigned
long flags, void __iomem *reg, struct gpt_rate_tbl *rtbl, u8
rtbl_cnt, spinlock_t *lock)
{
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk_gpt *gpt;
struct clk *clk;
diff --git a/drivers/clk/st/clk-flexgen.c b/drivers/clk/st/clk-flexgen.c
index cd856210..b72346f 100644
--- a/drivers/clk/st/clk-flexgen.c
+++ b/drivers/clk/st/clk-flexgen.c
@@ -200,7 +200,7 @@ static struct clk *clk_register_flexgen(const char *name,
unsigned long flexgen_flags, bool mode) {
struct flexgen *fgxbar;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
u32 xbar_shift;
void __iomem *xbar_reg, *fdiv_reg;
diff --git a/drivers/clk/st/clkgen-fsyn.c b/drivers/clk/st/clkgen-fsyn.c
index a79d819..bead9fb 100644
--- a/drivers/clk/st/clkgen-fsyn.c
+++ b/drivers/clk/st/clkgen-fsyn.c
@@ -390,7 +390,7 @@ static struct clk * __init st_clk_register_quadfs_pll(
{
struct st_clk_quadfs_pll *pll;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
/*
* Sanity check required pointers.
@@ -829,7 +829,7 @@ static struct clk * __init st_clk_register_quadfs_fsynth(
{
struct st_clk_quadfs_fsynth *fs;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
/*
* Sanity check required pointers, note that nsdiv3 is optional.
diff --git a/drivers/clk/st/clkgen-pll.c b/drivers/clk/st/clkgen-pll.c
index 7a7106d..24b8da1 100644
--- a/drivers/clk/st/clkgen-pll.c
+++ b/drivers/clk/st/clkgen-pll.c
@@ -604,7 +604,7 @@ static struct clk * __init clkgen_pll_register(const char *parent_name,
{
struct clkgen_pll *pll;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
pll = kzalloc(sizeof(*pll), GFP_KERNEL);
if (!pll)
diff --git a/drivers/clk/sunxi/clk-sun4i-tcon-ch1.c b/drivers/clk/sunxi/clk-sun4i-tcon-ch1.c
index b6d29d1..b637394 100644
--- a/drivers/clk/sunxi/clk-sun4i-tcon-ch1.c
+++ b/drivers/clk/sunxi/clk-sun4i-tcon-ch1.c
@@ -233,7 +233,7 @@ static void __init tcon_ch1_setup(struct device_node *node)
{
const char *parents[TCON_CH1_SCLK2_PARENTS];
const char *clk_name = node->name;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct tcon_ch1_clk *tclk;
struct resource res;
struct clk *clk;
diff --git a/drivers/clk/tegra/clk-audio-sync.c b/drivers/clk/tegra/clk-audio-sync.c
index 53cdc0e..b2d5fb7 100644
--- a/drivers/clk/tegra/clk-audio-sync.c
+++ b/drivers/clk/tegra/clk-audio-sync.c
@@ -58,7 +58,7 @@ struct clk *tegra_clk_register_sync_source(const char *name,
unsigned long max_rate)
{
struct tegra_clk_sync_source *sync;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk *clk;
sync = kzalloc(sizeof(*sync), GFP_KERNEL);
diff --git a/drivers/clk/tegra/clk-bpmp.c b/drivers/clk/tegra/clk-bpmp.c
index 01dada5..5847241 100644
--- a/drivers/clk/tegra/clk-bpmp.c
+++ b/drivers/clk/tegra/clk-bpmp.c
@@ -471,7 +471,7 @@ tegra_bpmp_clk_register(struct tegra_bpmp *bpmp,
unsigned int num_clocks)
{
struct tegra_bpmp_clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
const char **parents;
unsigned int i;
int err;
diff --git a/drivers/clk/tegra/clk-divider.c b/drivers/clk/tegra/clk-divider.c
index 205fe8f..c6821fc 100644
--- a/drivers/clk/tegra/clk-divider.c
+++ b/drivers/clk/tegra/clk-divider.c
@@ -133,7 +133,7 @@ struct clk *tegra_clk_register_divider(const char *name,
{
struct tegra_clk_frac_div *divider;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
divider = kzalloc(sizeof(*divider), GFP_KERNEL);
if (!divider) {
diff --git a/drivers/clk/tegra/clk-emc.c b/drivers/clk/tegra/clk-emc.c
index 0621a3a8..14d8ef4 100644
--- a/drivers/clk/tegra/clk-emc.c
+++ b/drivers/clk/tegra/clk-emc.c
@@ -473,7 +473,7 @@ struct clk *tegra_clk_register_emc(void __iomem *base, struct device_node *np,
spinlock_t *lock)
{
struct tegra_clk_emc *tegra;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct device_node *node;
u32 node_ram_code;
struct clk *clk;
diff --git a/drivers/clk/tegra/clk-periph-fixed.c b/drivers/clk/tegra/clk-periph-fixed.c
index c57dfb0..815967c 100644
--- a/drivers/clk/tegra/clk-periph-fixed.c
+++ b/drivers/clk/tegra/clk-periph-fixed.c
@@ -87,7 +87,7 @@ struct clk *tegra_clk_register_periph_fixed(const char *name,
{
const struct tegra_clk_periph_regs *regs;
struct tegra_clk_periph_fixed *fixed;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk *clk;
regs = get_reg_bank(num);
diff --git a/drivers/clk/tegra/clk-periph-gate.c b/drivers/clk/tegra/clk-periph-gate.c
index 303ef32..a8dbfc2 100644
--- a/drivers/clk/tegra/clk-periph-gate.c
+++ b/drivers/clk/tegra/clk-periph-gate.c
@@ -133,7 +133,7 @@ struct clk *tegra_clk_register_periph_gate(const char *name,
{
struct tegra_clk_periph_gate *gate;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
const struct tegra_clk_periph_regs *pregs;
pregs = get_reg_bank(clk_num);
diff --git a/drivers/clk/tegra/clk-periph.c b/drivers/clk/tegra/clk-periph.c
index 9475c00..3c96217 100644
--- a/drivers/clk/tegra/clk-periph.c
+++ b/drivers/clk/tegra/clk-periph.c
@@ -144,7 +144,7 @@ static struct clk *_tegra_clk_register_periph(const char *name,
unsigned long flags)
{
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
const struct tegra_clk_periph_regs *bank;
bool div = !(periph->gate.flags & TEGRA_PERIPH_NO_DIV);
diff --git a/drivers/clk/tegra/clk-pll-out.c b/drivers/clk/tegra/clk-pll-out.c
index 257cae0..66614ed 100644
--- a/drivers/clk/tegra/clk-pll-out.c
+++ b/drivers/clk/tegra/clk-pll-out.c
@@ -93,7 +93,7 @@ struct clk *tegra_clk_register_pll_out(const char *name,
{
struct tegra_clk_pll_out *pll_out;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
pll_out = kzalloc(sizeof(*pll_out), GFP_KERNEL);
if (!pll_out)
diff --git a/drivers/clk/tegra/clk-pll.c b/drivers/clk/tegra/clk-pll.c
index ed3b725..c34bfb6 100644
--- a/drivers/clk/tegra/clk-pll.c
+++ b/drivers/clk/tegra/clk-pll.c
@@ -1823,7 +1823,7 @@ static struct clk *_tegra_clk_register_pll(struct tegra_clk_pll *pll,
const char *name, const char *parent_name, unsigned long flags,
const struct clk_ops *ops)
{
- struct clk_init_data init;
+ struct clk_init_data init = {};
init.name = name;
init.ops = ops;
diff --git a/drivers/clk/tegra/clk-sdmmc-mux.c b/drivers/clk/tegra/clk-sdmmc-mux.c
index 473d418..a829470db 100644
--- a/drivers/clk/tegra/clk-sdmmc-mux.c
+++ b/drivers/clk/tegra/clk-sdmmc-mux.c
@@ -209,7 +209,7 @@ struct clk *tegra_clk_register_sdmmc_mux_div(const char *name,
unsigned long flags, void *lock)
{
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
const struct tegra_clk_periph_regs *bank;
struct tegra_sdmmc_mux *sdmmc_mux;
diff --git a/drivers/clk/tegra/clk-super.c b/drivers/clk/tegra/clk-super.c
index 84267cf..def85bd 100644
--- a/drivers/clk/tegra/clk-super.c
+++ b/drivers/clk/tegra/clk-super.c
@@ -174,7 +174,7 @@ struct clk *tegra_clk_register_super_mux(const char *name,
{
struct tegra_clk_super_mux *super;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
super = kzalloc(sizeof(*super), GFP_KERNEL);
if (!super)
@@ -210,7 +210,7 @@ struct clk *tegra_clk_register_super_clk(const char *name,
{
struct tegra_clk_super_mux *super;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
super = kzalloc(sizeof(*super), GFP_KERNEL);
if (!super)
diff --git a/drivers/clk/ti/adpll.c b/drivers/clk/ti/adpll.c
index 14926e0..878ca05 100644
--- a/drivers/clk/ti/adpll.c
+++ b/drivers/clk/ti/adpll.c
@@ -489,7 +489,7 @@ static const struct clk_ops ti_adpll_ops = {
static int ti_adpll_init_dco(struct ti_adpll_data *d)
{
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk *clock;
const char *postfix;
int width, err;
@@ -582,7 +582,7 @@ static int ti_adpll_init_clkout(struct ti_adpll_data *d,
struct clk *clk1)
{
struct ti_adpll_clkout_data *co;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk_ops *ops;
const char *parent_names[2];
const char *child_name;
diff --git a/drivers/clk/ti/clk-7xx.c b/drivers/clk/ti/clk-7xx.c
index b6d1ec4..71a122b 100644
--- a/drivers/clk/ti/clk-7xx.c
+++ b/drivers/clk/ti/clk-7xx.c
@@ -733,7 +733,6 @@ const struct omap_clkctrl_data dra7_clkctrl_data[] __initconst = {
static struct ti_dt_clk dra7xx_clks[] = {
DT_CLK(NULL, "timer_32k_ck", "sys_32k_ck"),
DT_CLK(NULL, "sys_clkin_ck", "timer_sys_clk_div"),
- DT_CLK(NULL, "timer_sys_ck", "timer_sys_clk_div"),
DT_CLK(NULL, "sys_clkin", "sys_clkin1"),
DT_CLK(NULL, "atl_dpll_clk_mux", "atl_cm:0000:24"),
DT_CLK(NULL, "atl_gfclk_mux", "atl_cm:0000:26"),
diff --git a/drivers/clk/ti/divider.c b/drivers/clk/ti/divider.c
index 079f0be..99bafe9 100644
--- a/drivers/clk/ti/divider.c
+++ b/drivers/clk/ti/divider.c
@@ -284,7 +284,7 @@ static struct clk *_register_divider(struct device *dev, const char *name,
{
struct clk_omap_divider *div;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
if (clk_divider_flags & CLK_DIVIDER_HIWORD_MASK) {
if (width + shift > 16) {
diff --git a/drivers/clk/ti/mux.c b/drivers/clk/ti/mux.c
index 69a4308..089b1b4 100644
--- a/drivers/clk/ti/mux.c
+++ b/drivers/clk/ti/mux.c
@@ -105,7 +105,7 @@ static struct clk *_register_mux(struct device *dev, const char *name,
{
struct clk_omap_mux *mux;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
/* allocate the mux */
mux = kzalloc(sizeof(*mux), GFP_KERNEL);
diff --git a/drivers/clk/uniphier/clk-uniphier-cpugear.c b/drivers/clk/uniphier/clk-uniphier-cpugear.c
index 5d2d42b..4613000 100644
--- a/drivers/clk/uniphier/clk-uniphier-cpugear.c
+++ b/drivers/clk/uniphier/clk-uniphier-cpugear.c
@@ -88,7 +88,7 @@ struct clk_hw *uniphier_clk_register_cpugear(struct device *dev,
const struct uniphier_clk_cpugear_data *data)
{
struct uniphier_clk_cpugear *gear;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
gear = devm_kzalloc(dev, sizeof(*gear), GFP_KERNEL);
diff --git a/drivers/clk/uniphier/clk-uniphier-fixed-factor.c b/drivers/clk/uniphier/clk-uniphier-fixed-factor.c
index da2d9f4..adfe03f 100644
--- a/drivers/clk/uniphier/clk-uniphier-fixed-factor.c
+++ b/drivers/clk/uniphier/clk-uniphier-fixed-factor.c
@@ -23,7 +23,7 @@ struct clk_hw *uniphier_clk_register_fixed_factor(struct device *dev,
const struct uniphier_clk_fixed_factor_data *data)
{
struct clk_fixed_factor *fix;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
fix = devm_kzalloc(dev, sizeof(*fix), GFP_KERNEL);
diff --git a/drivers/clk/uniphier/clk-uniphier-fixed-rate.c b/drivers/clk/uniphier/clk-uniphier-fixed-rate.c
index 0ad0d46..beb2135 100644
--- a/drivers/clk/uniphier/clk-uniphier-fixed-rate.c
+++ b/drivers/clk/uniphier/clk-uniphier-fixed-rate.c
@@ -23,7 +23,7 @@ struct clk_hw *uniphier_clk_register_fixed_rate(struct device *dev,
const struct uniphier_clk_fixed_rate_data *data)
{
struct clk_fixed_rate *fixed;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
/* allocate fixed-rate clock */
diff --git a/drivers/clk/uniphier/clk-uniphier-gate.c b/drivers/clk/uniphier/clk-uniphier-gate.c
index 49142d4..9d2e977 100644
--- a/drivers/clk/uniphier/clk-uniphier-gate.c
+++ b/drivers/clk/uniphier/clk-uniphier-gate.c
@@ -71,7 +71,7 @@ struct clk_hw *uniphier_clk_register_gate(struct device *dev,
const struct uniphier_clk_gate_data *data)
{
struct uniphier_clk_gate *gate;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
gate = devm_kzalloc(dev, sizeof(*gate), GFP_KERNEL);
diff --git a/drivers/clk/uniphier/clk-uniphier-mux.c b/drivers/clk/uniphier/clk-uniphier-mux.c
index 3a52ab9..088ebb7 100644
--- a/drivers/clk/uniphier/clk-uniphier-mux.c
+++ b/drivers/clk/uniphier/clk-uniphier-mux.c
@@ -68,7 +68,7 @@ struct clk_hw *uniphier_clk_register_mux(struct device *dev,
const struct uniphier_clk_mux_data *data)
{
struct uniphier_clk_mux *mux;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
mux = devm_kzalloc(dev, sizeof(*mux), GFP_KERNEL);
diff --git a/drivers/clk/versatile/clk-icst.c b/drivers/clk/versatile/clk-icst.c
index dafe7a4..c9eb1f8 100644
--- a/drivers/clk/versatile/clk-icst.c
+++ b/drivers/clk/versatile/clk-icst.c
@@ -356,7 +356,7 @@ static struct clk *icst_clk_setup(struct device *dev,
{
struct clk *clk;
struct clk_icst *icst;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct icst_params *pclone;
icst = kzalloc(sizeof(*icst), GFP_KERNEL);
diff --git a/drivers/clk/versatile/clk-sp810.c b/drivers/clk/versatile/clk-sp810.c
index 1fe1e8d..ab8c4a6 100644
--- a/drivers/clk/versatile/clk-sp810.c
+++ b/drivers/clk/versatile/clk-sp810.c
@@ -91,7 +91,7 @@ static void __init clk_sp810_of_setup(struct device_node *node)
const char *parent_names[2];
int num = ARRAY_SIZE(parent_names);
char name[12];
- struct clk_init_data init;
+ struct clk_init_data init = {};
static int instance;
int i;
bool deprecated;
diff --git a/drivers/clk/versatile/clk-vexpress-osc.c b/drivers/clk/versatile/clk-vexpress-osc.c
index dd08ecb..dbe3691 100644
--- a/drivers/clk/versatile/clk-vexpress-osc.c
+++ b/drivers/clk/versatile/clk-vexpress-osc.c
@@ -70,7 +70,7 @@ static const struct clk_ops vexpress_osc_ops = {
static int vexpress_osc_probe(struct platform_device *pdev)
{
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct vexpress_osc *osc;
struct clk *clk;
u32 range[2];
diff --git a/drivers/clk/x86/clk-pmc-atom.c b/drivers/clk/x86/clk-pmc-atom.c
index 1917483..79ba128 100644
--- a/drivers/clk/x86/clk-pmc-atom.c
+++ b/drivers/clk/x86/clk-pmc-atom.c
@@ -170,7 +170,7 @@ static struct clk_plt *plt_clk_register(struct platform_device *pdev, int id,
int num_parents)
{
struct clk_plt *pclk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
pclk = devm_kzalloc(&pdev->dev, sizeof(*pclk), GFP_KERNEL);
diff --git a/drivers/clk/zte/clk.c b/drivers/clk/zte/clk.c
index b820317..5a19eeb 100644
--- a/drivers/clk/zte/clk.c
+++ b/drivers/clk/zte/clk.c
@@ -161,7 +161,7 @@ struct clk *clk_register_zx_pll(const char *name, const char *parent_name,
{
struct clk_zx_pll *zx_pll;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
zx_pll = kzalloc(sizeof(*zx_pll), GFP_KERNEL);
if (!zx_pll)
@@ -300,7 +300,7 @@ struct clk *clk_register_zx_audio(const char *name,
{
struct clk_zx_audio *zx_audio;
struct clk *clk;
- struct clk_init_data init;
+ struct clk_init_data init = {};
zx_audio = kzalloc(sizeof(*zx_audio), GFP_KERNEL);
if (!zx_audio)
diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index 8642504..7d84545 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -52,6 +52,8 @@
#define CNTFRQ 0x10
#define CNTP_TVAL 0x28
#define CNTP_CTL 0x2c
+#define CNTCVAL_LO 0x30
+#define CNTCVAL_HI 0x34
#define CNTV_TVAL 0x38
#define CNTV_CTL 0x3c
@@ -955,6 +957,7 @@ u32 arch_timer_get_rate(void)
{
return arch_timer_rate;
}
+EXPORT_SYMBOL_GPL(arch_timer_get_rate);
bool arch_timer_evtstrm_available(void)
{
@@ -966,6 +969,24 @@ bool arch_timer_evtstrm_available(void)
return cpumask_test_cpu(raw_smp_processor_id(), &evtstrm_available);
}
+void arch_timer_mem_get_cval(u32 *lo, u32 *hi)
+{
+ u32 ctrl;
+
+ *lo = *hi = ~0U;
+
+ if (!arch_counter_base)
+ return;
+
+ ctrl = readl_relaxed(arch_counter_base + CNTV_CTL);
+
+ if (ctrl & ARCH_TIMER_CTRL_ENABLE) {
+ *lo = readl_relaxed(arch_counter_base + CNTCVAL_LO);
+ *hi = readl_relaxed(arch_counter_base + CNTCVAL_HI);
+ }
+}
+EXPORT_SYMBOL_GPL(arch_timer_mem_get_cval);
+
static u64 arch_counter_get_cntvct_mem(void)
{
u32 vct_lo, vct_hi, tmp_hi;
diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
index 608af20..f918250 100644
--- a/drivers/cpufreq/Kconfig
+++ b/drivers/cpufreq/Kconfig
@@ -37,6 +37,13 @@
If in doubt, say N.
+config CPU_FREQ_TIMES
+ bool "CPU frequency time-in-state statistics"
+ help
+ Export CPU time-in-state information through procfs.
+
+ If in doubt, say N.
+
choice
prompt "Default CPUFreq governor"
default CPU_FREQ_DEFAULT_GOV_USERSPACE if ARM_SA1100_CPUFREQ || ARM_SA1110_CPUFREQ
@@ -227,6 +234,15 @@
If in doubt, say N.
+config CPUFREQ_DUMMY
+ tristate "Dummy CPU frequency driver"
+ help
+ This option adds a generic dummy CPUfreq driver, which sets a fake
+ 2-frequency table when initializing each policy and otherwise does
+ nothing.
+
+ If in doubt, say N
+
if X86
source "drivers/cpufreq/Kconfig.x86"
endif
diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
index c1ffeab..75bfc5a 100644
--- a/drivers/cpufreq/Makefile
+++ b/drivers/cpufreq/Makefile
@@ -5,7 +5,10 @@
# CPUfreq stats
obj-$(CONFIG_CPU_FREQ_STAT) += cpufreq_stats.o
-# CPUfreq governors
+# CPUfreq times
+obj-$(CONFIG_CPU_FREQ_TIMES) += cpufreq_times.o
+
+# CPUfreq governors
obj-$(CONFIG_CPU_FREQ_GOV_PERFORMANCE) += cpufreq_performance.o
obj-$(CONFIG_CPU_FREQ_GOV_POWERSAVE) += cpufreq_powersave.o
obj-$(CONFIG_CPU_FREQ_GOV_USERSPACE) += cpufreq_userspace.o
@@ -17,6 +20,8 @@
obj-$(CONFIG_CPUFREQ_DT) += cpufreq-dt.o
obj-$(CONFIG_CPUFREQ_DT_PLATDEV) += cpufreq-dt-platdev.o
+obj-$(CONFIG_CPUFREQ_DUMMY) += dummy-cpufreq.o
+
##################################################################################
# x86 drivers.
# Link order matters. K8 is preferred to ACPI because of firmware bugs in early
diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index cf62a1f..803d41c 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -24,6 +24,7 @@
#include <linux/cpufreq.h>
#include <linux/cpumask.h>
#include <linux/cpu_cooling.h>
+#include <linux/energy_model.h>
#include <linux/export.h>
#include <linux/module.h>
#include <linux/mutex.h>
@@ -456,6 +457,7 @@ static int get_cluster_clk_and_freq_table(struct device *cpu_dev,
/* Per-CPU initialization */
static int bL_cpufreq_init(struct cpufreq_policy *policy)
{
+ struct em_data_callback em_cb = EM_DATA_CB(of_dev_pm_opp_get_cpu_power);
u32 cur_cluster = cpu_to_cluster(policy->cpu);
struct device *cpu_dev;
int ret;
@@ -487,6 +489,14 @@ static int bL_cpufreq_init(struct cpufreq_policy *policy)
policy->cpuinfo.transition_latency =
arm_bL_ops->get_transition_latency(cpu_dev);
+ ret = dev_pm_opp_get_opp_count(cpu_dev);
+ if (ret <= 0) {
+ dev_dbg(cpu_dev, "OPP table is not ready, deferring probe\n");
+ return -EPROBE_DEFER;
+ }
+
+ em_register_perf_domain(policy->cpus, ret, &em_cb);
+
if (is_bL_switching_enabled())
per_cpu(cpu_last_req_freq, policy->cpu) = clk_get_cpu_rate(policy->cpu);
diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
index e58bfcb..7556e07 100644
--- a/drivers/cpufreq/cpufreq-dt.c
+++ b/drivers/cpufreq/cpufreq-dt.c
@@ -16,6 +16,7 @@
#include <linux/cpu_cooling.h>
#include <linux/cpufreq.h>
#include <linux/cpumask.h>
+#include <linux/energy_model.h>
#include <linux/err.h>
#include <linux/module.h>
#include <linux/of.h>
@@ -152,6 +153,7 @@ static int resources_available(void)
static int cpufreq_init(struct cpufreq_policy *policy)
{
+ struct em_data_callback em_cb = EM_DATA_CB(of_dev_pm_opp_get_cpu_power);
struct cpufreq_frequency_table *freq_table;
struct opp_table *opp_table = NULL;
struct private_data *priv;
@@ -160,7 +162,7 @@ static int cpufreq_init(struct cpufreq_policy *policy)
unsigned int transition_latency;
bool fallback = false;
const char *name;
- int ret;
+ int ret, nr_opp;
cpu_dev = get_cpu_device(policy->cpu);
if (!cpu_dev) {
@@ -237,6 +239,7 @@ static int cpufreq_init(struct cpufreq_policy *policy)
ret = -EPROBE_DEFER;
goto out_free_opp;
}
+ nr_opp = ret;
if (fallback) {
cpumask_setall(policy->cpus);
@@ -280,6 +283,8 @@ static int cpufreq_init(struct cpufreq_policy *policy)
policy->cpuinfo.transition_latency = transition_latency;
policy->dvfs_possible_from_any_cpu = true;
+ em_register_perf_domain(policy->cpus, nr_opp, &em_cb);
+
return 0;
out_free_cpufreq_table:
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index e35c397..c9b9a4c 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -19,6 +19,7 @@
#include <linux/cpu.h>
#include <linux/cpufreq.h>
+#include <linux/cpufreq_times.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/init.h>
@@ -158,6 +159,12 @@ __weak void arch_set_freq_scale(struct cpumask *cpus, unsigned long cur_freq,
}
EXPORT_SYMBOL_GPL(arch_set_freq_scale);
+__weak void arch_set_max_freq_scale(struct cpumask *cpus,
+ unsigned long policy_max_freq)
+{
+}
+EXPORT_SYMBOL_GPL(arch_set_max_freq_scale);
+
/*
* This is a generic cpufreq init() routine which can be used by cpufreq
* drivers of SMP systems. It will do following:
@@ -349,6 +356,7 @@ static void cpufreq_notify_transition(struct cpufreq_policy *policy,
}
cpufreq_stats_record_transition(policy, freqs->new);
+ cpufreq_times_record_transition(policy, freqs->new);
policy->cur = freqs->new;
}
}
@@ -1302,6 +1310,7 @@ static int cpufreq_online(unsigned int cpu)
goto out_destroy_policy;
cpufreq_stats_create_table(policy);
+ cpufreq_times_create_policy(policy);
write_lock_irqsave(&cpufreq_driver_lock, flags);
list_add(&policy->policy_list, &cpufreq_policy_list);
@@ -1864,9 +1873,15 @@ EXPORT_SYMBOL(cpufreq_unregister_notifier);
unsigned int cpufreq_driver_fast_switch(struct cpufreq_policy *policy,
unsigned int target_freq)
{
+ int ret;
+
target_freq = clamp_val(target_freq, policy->min, policy->max);
- return cpufreq_driver->fast_switch(policy, target_freq);
+ ret = cpufreq_driver->fast_switch(policy, target_freq);
+ if (ret)
+ cpufreq_times_record_transition(policy, ret);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(cpufreq_driver_fast_switch);
@@ -2246,6 +2261,8 @@ static int cpufreq_set_policy(struct cpufreq_policy *policy,
policy->max = new_policy->max;
trace_cpu_frequency_limits(policy);
+ arch_set_max_freq_scale(policy->cpus, policy->max);
+
policy->cached_target_freq = UINT_MAX;
pr_debug("new min and max freqs are %u - %u kHz\n",
@@ -2280,6 +2297,7 @@ static int cpufreq_set_policy(struct cpufreq_policy *policy,
ret = cpufreq_start_governor(policy);
if (!ret) {
pr_debug("cpufreq: governor change\n");
+ sched_cpufreq_governor_change(policy, old_gov);
return 0;
}
cpufreq_exit_governor(policy);
diff --git a/drivers/cpufreq/cpufreq_times.c b/drivers/cpufreq/cpufreq_times.c
new file mode 100644
index 0000000..210742e
--- /dev/null
+++ b/drivers/cpufreq/cpufreq_times.c
@@ -0,0 +1,633 @@
+/* drivers/cpufreq/cpufreq_times.c
+ *
+ * Copyright (C) 2018 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/cpufreq.h>
+#include <linux/cpufreq_times.h>
+#include <linux/hashtable.h>
+#include <linux/init.h>
+#include <linux/jiffies.h>
+#include <linux/proc_fs.h>
+#include <linux/sched.h>
+#include <linux/seq_file.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/threads.h>
+
+#define UID_HASH_BITS 10
+
+static DECLARE_HASHTABLE(uid_hash_table, UID_HASH_BITS);
+
+static DEFINE_SPINLOCK(task_time_in_state_lock); /* task->time_in_state */
+static DEFINE_SPINLOCK(uid_lock); /* uid_hash_table */
+
+struct concurrent_times {
+ atomic64_t active[NR_CPUS];
+ atomic64_t policy[NR_CPUS];
+};
+
+struct uid_entry {
+ uid_t uid;
+ unsigned int max_state;
+ struct hlist_node hash;
+ struct rcu_head rcu;
+ struct concurrent_times *concurrent_times;
+ u64 time_in_state[0];
+};
+
+/**
+ * struct cpu_freqs - per-cpu frequency information
+ * @offset: start of these freqs' stats in task time_in_state array
+ * @max_state: number of entries in freq_table
+ * @last_index: index in freq_table of last frequency switched to
+ * @freq_table: list of available frequencies
+ */
+struct cpu_freqs {
+ unsigned int offset;
+ unsigned int max_state;
+ unsigned int last_index;
+ unsigned int freq_table[0];
+};
+
+static struct cpu_freqs *all_freqs[NR_CPUS];
+
+static unsigned int next_offset;
+
+
+/* Caller must hold rcu_read_lock() */
+static struct uid_entry *find_uid_entry_rcu(uid_t uid)
+{
+ struct uid_entry *uid_entry;
+
+ hash_for_each_possible_rcu(uid_hash_table, uid_entry, hash, uid) {
+ if (uid_entry->uid == uid)
+ return uid_entry;
+ }
+ return NULL;
+}
+
+/* Caller must hold uid lock */
+static struct uid_entry *find_uid_entry_locked(uid_t uid)
+{
+ struct uid_entry *uid_entry;
+
+ hash_for_each_possible(uid_hash_table, uid_entry, hash, uid) {
+ if (uid_entry->uid == uid)
+ return uid_entry;
+ }
+ return NULL;
+}
+
+/* Caller must hold uid lock */
+static struct uid_entry *find_or_register_uid_locked(uid_t uid)
+{
+ struct uid_entry *uid_entry, *temp;
+ struct concurrent_times *times;
+ unsigned int max_state = READ_ONCE(next_offset);
+ size_t alloc_size = sizeof(*uid_entry) + max_state *
+ sizeof(uid_entry->time_in_state[0]);
+
+ uid_entry = find_uid_entry_locked(uid);
+ if (uid_entry) {
+ if (uid_entry->max_state == max_state)
+ return uid_entry;
+ /* uid_entry->time_in_state is too small to track all freqs, so
+ * expand it.
+ */
+ temp = __krealloc(uid_entry, alloc_size, GFP_ATOMIC);
+ if (!temp)
+ return uid_entry;
+ temp->max_state = max_state;
+ memset(temp->time_in_state + uid_entry->max_state, 0,
+ (max_state - uid_entry->max_state) *
+ sizeof(uid_entry->time_in_state[0]));
+ if (temp != uid_entry) {
+ hlist_replace_rcu(&uid_entry->hash, &temp->hash);
+ kfree_rcu(uid_entry, rcu);
+ }
+ return temp;
+ }
+
+ uid_entry = kzalloc(alloc_size, GFP_ATOMIC);
+ if (!uid_entry)
+ return NULL;
+ times = kzalloc(sizeof(*times), GFP_ATOMIC);
+ if (!times) {
+ kfree(uid_entry);
+ return NULL;
+ }
+
+ uid_entry->uid = uid;
+ uid_entry->max_state = max_state;
+ uid_entry->concurrent_times = times;
+
+ hash_add_rcu(uid_hash_table, &uid_entry->hash, uid);
+
+ return uid_entry;
+}
+
+static int single_uid_time_in_state_show(struct seq_file *m, void *ptr)
+{
+ struct uid_entry *uid_entry;
+ unsigned int i;
+ uid_t uid = from_kuid_munged(current_user_ns(), *(kuid_t *)m->private);
+
+ if (uid == overflowuid)
+ return -EINVAL;
+
+ rcu_read_lock();
+
+ uid_entry = find_uid_entry_rcu(uid);
+ if (!uid_entry) {
+ rcu_read_unlock();
+ return 0;
+ }
+
+ for (i = 0; i < uid_entry->max_state; ++i) {
+ u64 time = nsec_to_clock_t(uid_entry->time_in_state[i]);
+ seq_write(m, &time, sizeof(time));
+ }
+
+ rcu_read_unlock();
+
+ return 0;
+}
+
+static void *uid_seq_start(struct seq_file *seq, loff_t *pos)
+{
+ if (*pos >= HASH_SIZE(uid_hash_table))
+ return NULL;
+
+ return &uid_hash_table[*pos];
+}
+
+static void *uid_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+ do {
+ (*pos)++;
+
+ if (*pos >= HASH_SIZE(uid_hash_table))
+ return NULL;
+ } while (hlist_empty(&uid_hash_table[*pos]));
+
+ return &uid_hash_table[*pos];
+}
+
+static void uid_seq_stop(struct seq_file *seq, void *v) { }
+
+static int uid_time_in_state_seq_show(struct seq_file *m, void *v)
+{
+ struct uid_entry *uid_entry;
+ struct cpu_freqs *freqs, *last_freqs = NULL;
+ int i, cpu;
+
+ if (v == uid_hash_table) {
+ seq_puts(m, "uid:");
+ for_each_possible_cpu(cpu) {
+ freqs = all_freqs[cpu];
+ if (!freqs || freqs == last_freqs)
+ continue;
+ last_freqs = freqs;
+ for (i = 0; i < freqs->max_state; i++) {
+ seq_put_decimal_ull(m, " ",
+ freqs->freq_table[i]);
+ }
+ }
+ seq_putc(m, '\n');
+ }
+
+ rcu_read_lock();
+
+ hlist_for_each_entry_rcu(uid_entry, (struct hlist_head *)v, hash) {
+ if (uid_entry->max_state) {
+ seq_put_decimal_ull(m, "", uid_entry->uid);
+ seq_putc(m, ':');
+ }
+ for (i = 0; i < uid_entry->max_state; ++i) {
+ u64 time = nsec_to_clock_t(uid_entry->time_in_state[i]);
+ seq_put_decimal_ull(m, " ", time);
+ }
+ if (uid_entry->max_state)
+ seq_putc(m, '\n');
+ }
+
+ rcu_read_unlock();
+ return 0;
+}
+
+static int concurrent_time_seq_show(struct seq_file *m, void *v,
+ atomic64_t *(*get_times)(struct concurrent_times *))
+{
+ struct uid_entry *uid_entry;
+ int i, num_possible_cpus = num_possible_cpus();
+
+ rcu_read_lock();
+
+ hlist_for_each_entry_rcu(uid_entry, (struct hlist_head *)v, hash) {
+ atomic64_t *times = get_times(uid_entry->concurrent_times);
+
+ seq_put_decimal_ull(m, "", (u64)uid_entry->uid);
+ seq_putc(m, ':');
+
+ for (i = 0; i < num_possible_cpus; ++i) {
+ u64 time = nsec_to_clock_t(atomic64_read(×[i]));
+
+ seq_put_decimal_ull(m, " ", time);
+ }
+ seq_putc(m, '\n');
+ }
+
+ rcu_read_unlock();
+
+ return 0;
+}
+
+static inline atomic64_t *get_active_times(struct concurrent_times *times)
+{
+ return times->active;
+}
+
+static int concurrent_active_time_seq_show(struct seq_file *m, void *v)
+{
+ if (v == uid_hash_table) {
+ seq_put_decimal_ull(m, "cpus: ", num_possible_cpus());
+ seq_putc(m, '\n');
+ }
+
+ return concurrent_time_seq_show(m, v, get_active_times);
+}
+
+static inline atomic64_t *get_policy_times(struct concurrent_times *times)
+{
+ return times->policy;
+}
+
+static int concurrent_policy_time_seq_show(struct seq_file *m, void *v)
+{
+ int i;
+ struct cpu_freqs *freqs, *last_freqs = NULL;
+
+ if (v == uid_hash_table) {
+ int cnt = 0;
+
+ for_each_possible_cpu(i) {
+ freqs = all_freqs[i];
+ if (!freqs)
+ continue;
+ if (freqs != last_freqs) {
+ if (last_freqs) {
+ seq_put_decimal_ull(m, ": ", cnt);
+ seq_putc(m, ' ');
+ cnt = 0;
+ }
+ seq_put_decimal_ull(m, "policy", i);
+
+ last_freqs = freqs;
+ }
+ cnt++;
+ }
+ if (last_freqs) {
+ seq_put_decimal_ull(m, ": ", cnt);
+ seq_putc(m, '\n');
+ }
+ }
+
+ return concurrent_time_seq_show(m, v, get_policy_times);
+}
+
+void cpufreq_task_times_init(struct task_struct *p)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&task_time_in_state_lock, flags);
+ p->time_in_state = NULL;
+ spin_unlock_irqrestore(&task_time_in_state_lock, flags);
+ p->max_state = 0;
+}
+
+void cpufreq_task_times_alloc(struct task_struct *p)
+{
+ void *temp;
+ unsigned long flags;
+ unsigned int max_state = READ_ONCE(next_offset);
+
+ /* We use one array to avoid multiple allocs per task */
+ temp = kcalloc(max_state, sizeof(p->time_in_state[0]), GFP_ATOMIC);
+ if (!temp)
+ return;
+
+ spin_lock_irqsave(&task_time_in_state_lock, flags);
+ p->time_in_state = temp;
+ spin_unlock_irqrestore(&task_time_in_state_lock, flags);
+ p->max_state = max_state;
+}
+
+/* Caller must hold task_time_in_state_lock */
+static int cpufreq_task_times_realloc_locked(struct task_struct *p)
+{
+ void *temp;
+ unsigned int max_state = READ_ONCE(next_offset);
+
+ temp = krealloc(p->time_in_state, max_state * sizeof(u64), GFP_ATOMIC);
+ if (!temp)
+ return -ENOMEM;
+ p->time_in_state = temp;
+ memset(p->time_in_state + p->max_state, 0,
+ (max_state - p->max_state) * sizeof(u64));
+ p->max_state = max_state;
+ return 0;
+}
+
+void cpufreq_task_times_exit(struct task_struct *p)
+{
+ unsigned long flags;
+ void *temp;
+
+ if (!p->time_in_state)
+ return;
+
+ spin_lock_irqsave(&task_time_in_state_lock, flags);
+ temp = p->time_in_state;
+ p->time_in_state = NULL;
+ spin_unlock_irqrestore(&task_time_in_state_lock, flags);
+ kfree(temp);
+}
+
+int proc_time_in_state_show(struct seq_file *m, struct pid_namespace *ns,
+ struct pid *pid, struct task_struct *p)
+{
+ unsigned int cpu, i;
+ u64 cputime;
+ unsigned long flags;
+ struct cpu_freqs *freqs;
+ struct cpu_freqs *last_freqs = NULL;
+
+ spin_lock_irqsave(&task_time_in_state_lock, flags);
+ for_each_possible_cpu(cpu) {
+ freqs = all_freqs[cpu];
+ if (!freqs || freqs == last_freqs)
+ continue;
+ last_freqs = freqs;
+
+ seq_printf(m, "cpu%u\n", cpu);
+ for (i = 0; i < freqs->max_state; i++) {
+ cputime = 0;
+ if (freqs->offset + i < p->max_state &&
+ p->time_in_state)
+ cputime = p->time_in_state[freqs->offset + i];
+ seq_printf(m, "%u %lu\n", freqs->freq_table[i],
+ (unsigned long)nsec_to_clock_t(cputime));
+ }
+ }
+ spin_unlock_irqrestore(&task_time_in_state_lock, flags);
+ return 0;
+}
+
+void cpufreq_acct_update_power(struct task_struct *p, u64 cputime)
+{
+ unsigned long flags;
+ unsigned int state;
+ unsigned int active_cpu_cnt = 0;
+ unsigned int policy_cpu_cnt = 0;
+ unsigned int policy_first_cpu;
+ struct uid_entry *uid_entry;
+ struct cpu_freqs *freqs = all_freqs[task_cpu(p)];
+ struct cpufreq_policy *policy;
+ uid_t uid = from_kuid_munged(current_user_ns(), task_uid(p));
+ int cpu = 0;
+
+ if (!freqs || is_idle_task(p) || p->flags & PF_EXITING)
+ return;
+
+ state = freqs->offset + READ_ONCE(freqs->last_index);
+
+ spin_lock_irqsave(&task_time_in_state_lock, flags);
+ if ((state < p->max_state || !cpufreq_task_times_realloc_locked(p)) &&
+ p->time_in_state)
+ p->time_in_state[state] += cputime;
+ spin_unlock_irqrestore(&task_time_in_state_lock, flags);
+
+ spin_lock_irqsave(&uid_lock, flags);
+ uid_entry = find_or_register_uid_locked(uid);
+ if (uid_entry && state < uid_entry->max_state)
+ uid_entry->time_in_state[state] += cputime;
+ spin_unlock_irqrestore(&uid_lock, flags);
+
+ rcu_read_lock();
+ uid_entry = find_uid_entry_rcu(uid);
+ if (!uid_entry) {
+ rcu_read_unlock();
+ return;
+ }
+
+ for_each_possible_cpu(cpu)
+ if (!idle_cpu(cpu))
+ ++active_cpu_cnt;
+
+ atomic64_add(cputime,
+ &uid_entry->concurrent_times->active[active_cpu_cnt - 1]);
+
+ policy = cpufreq_cpu_get(task_cpu(p));
+ if (!policy) {
+ /*
+ * This CPU may have just come up and not have a cpufreq policy
+ * yet.
+ */
+ rcu_read_unlock();
+ return;
+ }
+
+ for_each_cpu(cpu, policy->related_cpus)
+ if (!idle_cpu(cpu))
+ ++policy_cpu_cnt;
+
+ policy_first_cpu = cpumask_first(policy->related_cpus);
+ cpufreq_cpu_put(policy);
+
+ atomic64_add(cputime,
+ &uid_entry->concurrent_times->policy[policy_first_cpu +
+ policy_cpu_cnt - 1]);
+ rcu_read_unlock();
+}
+
+static int cpufreq_times_get_index(struct cpu_freqs *freqs, unsigned int freq)
+{
+ int index;
+ for (index = 0; index < freqs->max_state; ++index) {
+ if (freqs->freq_table[index] == freq)
+ return index;
+ }
+ return -1;
+}
+
+void cpufreq_times_create_policy(struct cpufreq_policy *policy)
+{
+ int cpu, index = 0;
+ unsigned int count = 0;
+ struct cpufreq_frequency_table *pos, *table;
+ struct cpu_freqs *freqs;
+ void *tmp;
+
+ if (all_freqs[policy->cpu])
+ return;
+
+ table = policy->freq_table;
+ if (!table)
+ return;
+
+ cpufreq_for_each_valid_entry(pos, table)
+ count++;
+
+ tmp = kzalloc(sizeof(*freqs) + sizeof(freqs->freq_table[0]) * count,
+ GFP_KERNEL);
+ if (!tmp)
+ return;
+
+ freqs = tmp;
+ freqs->max_state = count;
+
+ cpufreq_for_each_valid_entry(pos, table)
+ freqs->freq_table[index++] = pos->frequency;
+
+ index = cpufreq_times_get_index(freqs, policy->cur);
+ if (index >= 0)
+ WRITE_ONCE(freqs->last_index, index);
+
+ freqs->offset = next_offset;
+ WRITE_ONCE(next_offset, freqs->offset + count);
+ for_each_cpu(cpu, policy->related_cpus)
+ all_freqs[cpu] = freqs;
+}
+
+static void uid_entry_reclaim(struct rcu_head *rcu)
+{
+ struct uid_entry *uid_entry = container_of(rcu, struct uid_entry, rcu);
+
+ kfree(uid_entry->concurrent_times);
+ kfree(uid_entry);
+}
+
+void cpufreq_task_times_remove_uids(uid_t uid_start, uid_t uid_end)
+{
+ struct uid_entry *uid_entry;
+ struct hlist_node *tmp;
+ unsigned long flags;
+ u64 uid;
+
+ spin_lock_irqsave(&uid_lock, flags);
+
+ for (uid = uid_start; uid <= uid_end; uid++) {
+ hash_for_each_possible_safe(uid_hash_table, uid_entry, tmp,
+ hash, uid) {
+ if (uid == uid_entry->uid) {
+ hash_del_rcu(&uid_entry->hash);
+ call_rcu(&uid_entry->rcu, uid_entry_reclaim);
+ }
+ }
+ }
+
+ spin_unlock_irqrestore(&uid_lock, flags);
+}
+
+void cpufreq_times_record_transition(struct cpufreq_policy *policy,
+ unsigned int new_freq)
+{
+ int index;
+ struct cpu_freqs *freqs = all_freqs[policy->cpu];
+ if (!freqs)
+ return;
+
+ index = cpufreq_times_get_index(freqs, new_freq);
+ if (index >= 0)
+ WRITE_ONCE(freqs->last_index, index);
+}
+
+static const struct seq_operations uid_time_in_state_seq_ops = {
+ .start = uid_seq_start,
+ .next = uid_seq_next,
+ .stop = uid_seq_stop,
+ .show = uid_time_in_state_seq_show,
+};
+
+static int uid_time_in_state_open(struct inode *inode, struct file *file)
+{
+ return seq_open(file, &uid_time_in_state_seq_ops);
+}
+
+int single_uid_time_in_state_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, single_uid_time_in_state_show,
+ &(inode->i_uid));
+}
+
+static const struct file_operations uid_time_in_state_fops = {
+ .open = uid_time_in_state_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+
+static const struct seq_operations concurrent_active_time_seq_ops = {
+ .start = uid_seq_start,
+ .next = uid_seq_next,
+ .stop = uid_seq_stop,
+ .show = concurrent_active_time_seq_show,
+};
+
+static int concurrent_active_time_open(struct inode *inode, struct file *file)
+{
+ return seq_open(file, &concurrent_active_time_seq_ops);
+}
+
+static const struct file_operations concurrent_active_time_fops = {
+ .open = concurrent_active_time_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+
+static const struct seq_operations concurrent_policy_time_seq_ops = {
+ .start = uid_seq_start,
+ .next = uid_seq_next,
+ .stop = uid_seq_stop,
+ .show = concurrent_policy_time_seq_show,
+};
+
+static int concurrent_policy_time_open(struct inode *inode, struct file *file)
+{
+ return seq_open(file, &concurrent_policy_time_seq_ops);
+}
+
+static const struct file_operations concurrent_policy_time_fops = {
+ .open = concurrent_policy_time_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+
+static int __init cpufreq_times_init(void)
+{
+ proc_create_data("uid_time_in_state", 0444, NULL,
+ &uid_time_in_state_fops, NULL);
+
+ proc_create_data("uid_concurrent_active_time", 0444, NULL,
+ &concurrent_active_time_fops, NULL);
+
+ proc_create_data("uid_concurrent_policy_time", 0444, NULL,
+ &concurrent_policy_time_fops, NULL);
+
+ return 0;
+}
+
+early_initcall(cpufreq_times_init);
diff --git a/drivers/cpufreq/dummy-cpufreq.c b/drivers/cpufreq/dummy-cpufreq.c
new file mode 100644
index 0000000..ea40d5c
--- /dev/null
+++ b/drivers/cpufreq/dummy-cpufreq.c
@@ -0,0 +1,60 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 Google, Inc.
+ */
+#include <linux/cpufreq.h>
+#include <linux/module.h>
+
+static struct cpufreq_frequency_table freq_table[] = {
+ { .frequency = 1 },
+ { .frequency = 2 },
+ { .frequency = CPUFREQ_TABLE_END },
+};
+
+static int dummy_cpufreq_target_index(struct cpufreq_policy *policy,
+ unsigned int index)
+{
+ return 0;
+}
+
+static int dummy_cpufreq_driver_init(struct cpufreq_policy *policy)
+{
+ policy->freq_table = freq_table;
+ return 0;
+}
+
+static unsigned int dummy_cpufreq_get(unsigned int cpu)
+{
+ return 1;
+}
+
+static int dummy_cpufreq_verify(struct cpufreq_policy *policy)
+{
+ return 0;
+}
+
+static struct cpufreq_driver dummy_cpufreq_driver = {
+ .name = "dummy",
+ .target_index = dummy_cpufreq_target_index,
+ .init = dummy_cpufreq_driver_init,
+ .get = dummy_cpufreq_get,
+ .verify = dummy_cpufreq_verify,
+ .attr = cpufreq_generic_attr,
+};
+
+static int __init dummy_cpufreq_init(void)
+{
+ return cpufreq_register_driver(&dummy_cpufreq_driver);
+}
+
+static void __exit dummy_cpufreq_exit(void)
+{
+ cpufreq_unregister_driver(&dummy_cpufreq_driver);
+}
+
+module_init(dummy_cpufreq_init);
+module_exit(dummy_cpufreq_exit);
+
+MODULE_AUTHOR("Connor O'Brien <connoro@google.com>");
+MODULE_DESCRIPTION("dummy cpufreq driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/cpufreq/scmi-cpufreq.c b/drivers/cpufreq/scmi-cpufreq.c
index 3f06934..80001120 100644
--- a/drivers/cpufreq/scmi-cpufreq.c
+++ b/drivers/cpufreq/scmi-cpufreq.c
@@ -12,6 +12,7 @@
#include <linux/cpufreq.h>
#include <linux/cpumask.h>
#include <linux/cpu_cooling.h>
+#include <linux/energy_model.h>
#include <linux/export.h>
#include <linux/module.h>
#include <linux/pm_opp.h>
@@ -103,13 +104,42 @@ scmi_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask)
return 0;
}
+static int __maybe_unused
+scmi_get_cpu_power(unsigned long *power, unsigned long *KHz, int cpu)
+{
+ struct device *cpu_dev = get_cpu_device(cpu);
+ unsigned long Hz;
+ int ret, domain;
+
+ if (!cpu_dev) {
+ pr_err("failed to get cpu%d device\n", cpu);
+ return -ENODEV;
+ }
+
+ domain = handle->perf_ops->device_domain_id(cpu_dev);
+ if (domain < 0)
+ return domain;
+
+ /* Get the power cost of the performance domain. */
+ Hz = *KHz * 1000;
+ ret = handle->perf_ops->est_power_get(handle, domain, &Hz, power);
+ if (ret)
+ return ret;
+
+ /* The EM framework specifies the frequency in KHz. */
+ *KHz = Hz / 1000;
+
+ return 0;
+}
+
static int scmi_cpufreq_init(struct cpufreq_policy *policy)
{
- int ret;
+ int ret, nr_opp;
unsigned int latency;
struct device *cpu_dev;
struct scmi_data *priv;
struct cpufreq_frequency_table *freq_table;
+ struct em_data_callback em_cb = EM_DATA_CB(scmi_get_cpu_power);
cpu_dev = get_cpu_device(policy->cpu);
if (!cpu_dev) {
@@ -142,6 +172,7 @@ static int scmi_cpufreq_init(struct cpufreq_policy *policy)
ret = -EPROBE_DEFER;
goto out_free_opp;
}
+ nr_opp = ret;
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv) {
@@ -171,6 +202,9 @@ static int scmi_cpufreq_init(struct cpufreq_policy *policy)
policy->cpuinfo.transition_latency = latency;
policy->fast_switch_possible = true;
+
+ em_register_perf_domain(policy->cpus, nr_opp, &em_cb);
+
return 0;
out_free_priv:
diff --git a/drivers/cpufreq/scpi-cpufreq.c b/drivers/cpufreq/scpi-cpufreq.c
index 0338885..667fc06 100644
--- a/drivers/cpufreq/scpi-cpufreq.c
+++ b/drivers/cpufreq/scpi-cpufreq.c
@@ -23,6 +23,7 @@
#include <linux/cpufreq.h>
#include <linux/cpumask.h>
#include <linux/cpu_cooling.h>
+#include <linux/energy_model.h>
#include <linux/export.h>
#include <linux/module.h>
#include <linux/of_platform.h>
@@ -98,11 +99,12 @@ scpi_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask)
static int scpi_cpufreq_init(struct cpufreq_policy *policy)
{
- int ret;
+ int ret, nr_opp;
unsigned int latency;
struct device *cpu_dev;
struct scpi_data *priv;
struct cpufreq_frequency_table *freq_table;
+ struct em_data_callback em_cb = EM_DATA_CB(of_dev_pm_opp_get_cpu_power);
cpu_dev = get_cpu_device(policy->cpu);
if (!cpu_dev) {
@@ -135,6 +137,7 @@ static int scpi_cpufreq_init(struct cpufreq_policy *policy)
ret = -EPROBE_DEFER;
goto out_free_opp;
}
+ nr_opp = ret;
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv) {
@@ -170,6 +173,9 @@ static int scpi_cpufreq_init(struct cpufreq_policy *policy)
policy->cpuinfo.transition_latency = latency;
policy->fast_switch_possible = false;
+
+ em_register_perf_domain(policy->cpus, nr_opp, &em_cb);
+
return 0;
out_free_cpufreq_table:
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index 2d182dc..5a38eb0 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -28,6 +28,7 @@
DEFINE_PER_CPU(struct cpuidle_device *, cpuidle_devices);
DEFINE_PER_CPU(struct cpuidle_device, cpuidle_dev);
+EXPORT_SYMBOL_GPL(cpuidle_dev);
DEFINE_MUTEX(cpuidle_lock);
LIST_HEAD(cpuidle_detected_devices);
@@ -222,7 +223,7 @@ int cpuidle_enter_state(struct cpuidle_device *dev, struct cpuidle_driver *drv,
}
/* Take note of the planned idle state. */
- sched_idle_set_state(target_state);
+ sched_idle_set_state(target_state, index);
trace_cpu_idle_rcuidle(index, dev->cpu);
time_start = ns_to_ktime(local_clock());
@@ -236,7 +237,7 @@ int cpuidle_enter_state(struct cpuidle_device *dev, struct cpuidle_driver *drv,
trace_cpu_idle_rcuidle(PWR_EVENT_EXIT, dev->cpu);
/* The cpu is no longer idle or about to enter idle. */
- sched_idle_set_state(NULL);
+ sched_idle_set_state(NULL, -1);
if (broadcast) {
if (WARN_ON_ONCE(!irqs_disabled()))
diff --git a/drivers/cpuidle/governor.c b/drivers/cpuidle/governor.c
index 9fed1b82..e3321b9 100644
--- a/drivers/cpuidle/governor.c
+++ b/drivers/cpuidle/governor.c
@@ -95,6 +95,7 @@ int cpuidle_register_governor(struct cpuidle_governor *gov)
return ret;
}
+EXPORT_SYMBOL_GPL(cpuidle_register_governor);
/**
* cpuidle_governor_latency_req - Compute a latency constraint for CPU
diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c
index 6d7f6b9b..2ee86c9 100644
--- a/drivers/cpuidle/governors/menu.c
+++ b/drivers/cpuidle/governors/menu.c
@@ -131,10 +131,6 @@ struct menu_device {
int interval_ptr;
};
-
-#define LOAD_INT(x) ((x) >> FSHIFT)
-#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)
-
static inline int get_loadavg(unsigned long load)
{
return LOAD_INT(load) * 10 + LOAD_FRAC(load) / 10;
diff --git a/drivers/crypto/virtio/Kconfig b/drivers/crypto/virtio/Kconfig
index a4324b1..1df0bfa 100644
--- a/drivers/crypto/virtio/Kconfig
+++ b/drivers/crypto/virtio/Kconfig
@@ -4,7 +4,6 @@
select CRYPTO_AEAD
select CRYPTO_BLKCIPHER
select CRYPTO_ENGINE
- default m
help
This driver provides support for virtio crypto device. If you
choose 'M' here, this module will be called virtio_crypto.
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index 06a981c..d6a04e1 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -543,8 +543,6 @@ static int devfreq_notifier_call(struct notifier_block *nb, unsigned long type,
mutex_lock(&devfreq->lock);
devfreq->scaling_min_freq = find_available_min_freq(devfreq);
- if (!devfreq->scaling_min_freq)
- goto out;
devfreq->scaling_max_freq = find_available_max_freq(devfreq);
if (!devfreq->scaling_max_freq) {
@@ -582,6 +580,7 @@ static void devfreq_dev_release(struct device *dev)
devfreq->profile->exit(devfreq->dev.parent);
mutex_destroy(&devfreq->lock);
+ mutex_destroy(&devfreq->event_lock);
kfree(devfreq);
}
@@ -624,6 +623,7 @@ struct devfreq *devfreq_add_device(struct device *dev,
}
mutex_init(&devfreq->lock);
+ mutex_init(&devfreq->event_lock);
mutex_lock(&devfreq->lock);
devfreq->dev.parent = dev;
devfreq->dev.class = devfreq_class;
@@ -635,6 +635,7 @@ struct devfreq *devfreq_add_device(struct device *dev,
devfreq->last_status.current_frequency = profile->initial_freq;
devfreq->data = data;
devfreq->nb.notifier_call = devfreq_notifier_call;
+ devfreq->dev_suspended = false;
if (!devfreq->profile->max_state && !devfreq->profile->freq_table) {
mutex_unlock(&devfreq->lock);
@@ -645,11 +646,6 @@ struct devfreq *devfreq_add_device(struct device *dev,
}
devfreq->scaling_min_freq = find_available_min_freq(devfreq);
- if (!devfreq->scaling_min_freq) {
- mutex_unlock(&devfreq->lock);
- err = -EINVAL;
- goto err_dev;
- }
devfreq->min_freq = devfreq->scaling_min_freq;
devfreq->scaling_max_freq = find_available_max_freq(devfreq);
@@ -860,14 +856,23 @@ EXPORT_SYMBOL(devm_devfreq_remove_device);
*/
int devfreq_suspend_device(struct devfreq *devfreq)
{
+ int ret;
+
if (!devfreq)
return -EINVAL;
- if (!devfreq->governor)
+ mutex_lock(&devfreq->event_lock);
+ if (!devfreq->governor || devfreq->dev_suspended) {
+ mutex_unlock(&devfreq->event_lock);
return 0;
+ }
- return devfreq->governor->event_handler(devfreq,
+ ret = devfreq->governor->event_handler(devfreq,
DEVFREQ_GOV_SUSPEND, NULL);
+ if (!ret)
+ devfreq->dev_suspended = true;
+ mutex_unlock(&devfreq->event_lock);
+ return ret;
}
EXPORT_SYMBOL(devfreq_suspend_device);
@@ -881,14 +886,22 @@ EXPORT_SYMBOL(devfreq_suspend_device);
*/
int devfreq_resume_device(struct devfreq *devfreq)
{
+ int ret;
if (!devfreq)
return -EINVAL;
- if (!devfreq->governor)
+ mutex_lock(&devfreq->event_lock);
+ if (!devfreq->governor) {
+ mutex_unlock(&devfreq->event_lock);
return 0;
+ }
- return devfreq->governor->event_handler(devfreq,
+ ret = devfreq->governor->event_handler(devfreq,
DEVFREQ_GOV_RESUME, NULL);
+ if (!ret)
+ devfreq->dev_suspended = false;
+ mutex_unlock(&devfreq->event_lock);
+ return ret;
}
EXPORT_SYMBOL(devfreq_resume_device);
@@ -1035,7 +1048,7 @@ static ssize_t governor_store(struct device *dev, struct device_attribute *attr,
struct devfreq *df = to_devfreq(dev);
int ret;
char str_governor[DEVFREQ_NAME_LEN + 1];
- struct devfreq_governor *governor;
+ const struct devfreq_governor *governor, *prev_gov;
ret = sscanf(buf, "%" __stringify(DEVFREQ_NAME_LEN) "s", str_governor);
if (ret != 1)
@@ -1056,20 +1069,37 @@ static ssize_t governor_store(struct device *dev, struct device_attribute *attr,
goto out;
}
+ mutex_lock(&df->event_lock);
+ if (df->dev_suspended) {
+ ret = -EINVAL;
+ goto gov_stop_out;
+ }
if (df->governor) {
ret = df->governor->event_handler(df, DEVFREQ_GOV_STOP, NULL);
if (ret) {
dev_warn(dev, "%s: Governor %s not stopped(%d)\n",
__func__, df->governor->name, ret);
- goto out;
+ goto gov_stop_out;
}
}
+ prev_gov = df->governor;
df->governor = governor;
strncpy(df->governor_name, governor->name, DEVFREQ_NAME_LEN);
ret = df->governor->event_handler(df, DEVFREQ_GOV_START, NULL);
- if (ret)
+ if (ret) {
dev_warn(dev, "%s: Governor %s not started(%d)\n",
__func__, df->governor->name, ret);
+ if (prev_gov) {
+ df->governor = prev_gov;
+ strlcpy(df->governor_name, prev_gov->name,
+ DEVFREQ_NAME_LEN);
+ df->governor->event_handler(df, DEVFREQ_GOV_START,
+ NULL);
+ }
+ }
+
+gov_stop_out:
+ mutex_unlock(&df->event_lock);
out:
mutex_unlock(&devfreq_list_lock);
@@ -1164,8 +1194,10 @@ static ssize_t polling_interval_store(struct device *dev,
if (ret != 1)
return -EINVAL;
+ mutex_lock(&df->event_lock);
df->governor->event_handler(df, DEVFREQ_GOV_INTERVAL, &value);
ret = count;
+ mutex_unlock(&df->event_lock);
return ret;
}
@@ -1182,6 +1214,7 @@ static ssize_t min_freq_store(struct device *dev, struct device_attribute *attr,
if (ret != 1)
return -EINVAL;
+ mutex_lock(&df->event_lock);
mutex_lock(&df->lock);
if (value) {
@@ -1204,6 +1237,7 @@ static ssize_t min_freq_store(struct device *dev, struct device_attribute *attr,
ret = count;
unlock:
mutex_unlock(&df->lock);
+ mutex_unlock(&df->event_lock);
return ret;
}
@@ -1226,6 +1260,7 @@ static ssize_t max_freq_store(struct device *dev, struct device_attribute *attr,
if (ret != 1)
return -EINVAL;
+ mutex_lock(&df->event_lock);
mutex_lock(&df->lock);
if (value) {
@@ -1248,6 +1283,7 @@ static ssize_t max_freq_store(struct device *dev, struct device_attribute *attr,
ret = count;
unlock:
mutex_unlock(&df->lock);
+ mutex_unlock(&df->event_lock);
return ret;
}
static DEVICE_ATTR_RW(min_freq);
diff --git a/drivers/devfreq/governor_simpleondemand.c b/drivers/devfreq/governor_simpleondemand.c
index 28e0f2d..532801b 100644
--- a/drivers/devfreq/governor_simpleondemand.c
+++ b/drivers/devfreq/governor_simpleondemand.c
@@ -28,6 +28,7 @@ static int devfreq_simple_ondemand_func(struct devfreq *df,
unsigned int dfso_downdifferential = DFSO_DOWNDIFFERENCTIAL;
struct devfreq_simple_ondemand_data *data = df->data;
unsigned long max = (df->max_freq) ? df->max_freq : UINT_MAX;
+ unsigned long min = (df->min_freq) ? df->min_freq : 0;
err = devfreq_update_stats(df);
if (err)
@@ -45,18 +46,30 @@ static int devfreq_simple_ondemand_func(struct devfreq *df,
dfso_upthreshold < dfso_downdifferential)
return -EINVAL;
- /* Assume MAX if it is going to be divided by zero */
- if (stat->total_time == 0) {
- *freq = max;
- return 0;
- }
-
/* Prevent overflow */
if (stat->busy_time >= (1 << 24) || stat->total_time >= (1 << 24)) {
stat->busy_time >>= 7;
stat->total_time >>= 7;
}
+ if (data && data->simple_scaling) {
+ if (stat->busy_time * 100 >
+ stat->total_time * dfso_upthreshold)
+ *freq = max;
+ else if (stat->busy_time * 100 <
+ stat->total_time * dfso_downdifferential)
+ *freq = min;
+ else
+ *freq = df->previous_freq;
+ return 0;
+ }
+
+ /* Assume MAX if it is going to be divided by zero */
+ if (stat->total_time == 0) {
+ *freq = max;
+ return 0;
+ }
+
/* Set MAX if it's busy enough */
if (stat->busy_time * 100 >
stat->total_time * dfso_upthreshold) {
diff --git a/drivers/dma-buf/Kconfig b/drivers/dma-buf/Kconfig
index ed3b785..b0194c8 100644
--- a/drivers/dma-buf/Kconfig
+++ b/drivers/dma-buf/Kconfig
@@ -3,7 +3,6 @@
config SYNC_FILE
bool "Explicit Synchronization Framework"
default n
- select ANON_INODES
select DMA_SHARED_BUFFER
---help---
The Sync File Framework adds explicit syncronization via
diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
index 6984214..19a2e91 100644
--- a/drivers/dma-buf/dma-buf.c
+++ b/drivers/dma-buf/dma-buf.c
@@ -34,8 +34,13 @@
#include <linux/poll.h>
#include <linux/reservation.h>
#include <linux/mm.h>
+#include <linux/sched/signal.h>
+#include <linux/fdtable.h>
+#include <linux/list_sort.h>
+#include <linux/mount.h>
#include <uapi/linux/dma-buf.h>
+#include <uapi/linux/magic.h>
static inline int is_dma_buf_file(struct file *);
@@ -46,9 +51,45 @@ struct dma_buf_list {
static struct dma_buf_list db_list;
+static char *dmabuffs_dname(struct dentry *dentry, char *buffer, int buflen)
+{
+ struct dma_buf *dmabuf;
+ char name[DMA_BUF_NAME_LEN];
+ size_t ret = 0;
+
+ dmabuf = dentry->d_fsdata;
+ spin_lock(&dmabuf->name_lock);
+ if (dmabuf->name)
+ ret = strlcpy(name, dmabuf->name, DMA_BUF_NAME_LEN);
+ spin_unlock(&dmabuf->name_lock);
+
+ return dynamic_dname(dentry, buffer, buflen, "/%s:%s",
+ dentry->d_name.name, ret > 0 ? name : "");
+}
+
+static const struct dentry_operations dma_buf_dentry_ops = {
+ .d_dname = dmabuffs_dname,
+};
+
+static struct vfsmount *dma_buf_mnt;
+
+static struct dentry *dma_buf_fs_mount(struct file_system_type *fs_type,
+ int flags, const char *name, void *data)
+{
+ return mount_pseudo(fs_type, "dmabuf:", NULL, &dma_buf_dentry_ops,
+ DMA_BUF_MAGIC);
+}
+
+static struct file_system_type dma_buf_fs_type = {
+ .name = "dmabuf",
+ .mount = dma_buf_fs_mount,
+ .kill_sb = kill_anon_super,
+};
+
static int dma_buf_release(struct inode *inode, struct file *file)
{
struct dma_buf *dmabuf;
+ int dtor_ret = 0;
if (!is_dma_buf_file(file))
return -EINVAL;
@@ -67,16 +108,24 @@ static int dma_buf_release(struct inode *inode, struct file *file)
*/
BUG_ON(dmabuf->cb_shared.active || dmabuf->cb_excl.active);
- dmabuf->ops->release(dmabuf);
-
mutex_lock(&db_list.lock);
list_del(&dmabuf->list_node);
mutex_unlock(&db_list.lock);
+ if (dmabuf->dtor)
+ dtor_ret = dmabuf->dtor(dmabuf, dmabuf->dtor_data);
+
+ if (!dtor_ret)
+ dmabuf->ops->release(dmabuf);
+ else
+ pr_warn_ratelimited("Leaking dmabuf %s because destructor failed error:%d\n",
+ dmabuf->name, dtor_ret);
+
if (dmabuf->resv == (struct reservation_object *)&dmabuf[1])
reservation_object_fini(dmabuf->resv);
module_put(dmabuf->owner);
+ kfree(dmabuf->name);
kfree(dmabuf);
return 0;
}
@@ -276,12 +325,58 @@ static __poll_t dma_buf_poll(struct file *file, poll_table *poll)
return events;
}
+/**
+ * dma_buf_set_name - Set a name to a specific dma_buf to track the usage.
+ * The name of the dma-buf buffer can only be set when the dma-buf is not
+ * attached to any devices. It could theoritically support changing the
+ * name of the dma-buf if the same piece of memory is used for multiple
+ * purpose between different devices.
+ *
+ * @dmabuf [in] dmabuf buffer that will be renamed.
+ * @buf: [in] A piece of userspace memory that contains the name of
+ * the dma-buf.
+ *
+ * Returns 0 on success. If the dma-buf buffer is already attached to
+ * devices, return -EBUSY.
+ *
+ */
+static long dma_buf_set_name(struct dma_buf *dmabuf, const char __user *buf)
+{
+ char *name = strndup_user(buf, DMA_BUF_NAME_LEN);
+ long ret = 0;
+
+ if (IS_ERR(name))
+ return PTR_ERR(name);
+
+ mutex_lock(&dmabuf->lock);
+ spin_lock(&dmabuf->name_lock);
+ if (!list_empty(&dmabuf->attachments)) {
+ ret = -EBUSY;
+ kfree(name);
+ goto out_unlock;
+ }
+ kfree(dmabuf->name);
+ dmabuf->name = name;
+
+out_unlock:
+ spin_unlock(&dmabuf->name_lock);
+ mutex_unlock(&dmabuf->lock);
+ return ret;
+}
+
+static int dma_buf_begin_cpu_access_umapped(struct dma_buf *dmabuf,
+ enum dma_data_direction direction);
+
+
+static int dma_buf_end_cpu_access_umapped(struct dma_buf *dmabuf,
+ enum dma_data_direction direction);
+
static long dma_buf_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
struct dma_buf *dmabuf;
struct dma_buf_sync sync;
- enum dma_data_direction direction;
+ enum dma_data_direction dir;
int ret;
dmabuf = file->private_data;
@@ -296,29 +391,56 @@ static long dma_buf_ioctl(struct file *file,
switch (sync.flags & DMA_BUF_SYNC_RW) {
case DMA_BUF_SYNC_READ:
- direction = DMA_FROM_DEVICE;
+ dir = DMA_FROM_DEVICE;
break;
case DMA_BUF_SYNC_WRITE:
- direction = DMA_TO_DEVICE;
+ dir = DMA_TO_DEVICE;
break;
case DMA_BUF_SYNC_RW:
- direction = DMA_BIDIRECTIONAL;
+ dir = DMA_BIDIRECTIONAL;
break;
default:
return -EINVAL;
}
if (sync.flags & DMA_BUF_SYNC_END)
- ret = dma_buf_end_cpu_access(dmabuf, direction);
+ if (sync.flags & DMA_BUF_SYNC_USER_MAPPED)
+ ret = dma_buf_end_cpu_access_umapped(dmabuf,
+ dir);
+ else
+ ret = dma_buf_end_cpu_access(dmabuf, dir);
else
- ret = dma_buf_begin_cpu_access(dmabuf, direction);
+ if (sync.flags & DMA_BUF_SYNC_USER_MAPPED)
+ ret = dma_buf_begin_cpu_access_umapped(dmabuf,
+ dir);
+ else
+ ret = dma_buf_begin_cpu_access(dmabuf, dir);
return ret;
+
+ case DMA_BUF_SET_NAME_A:
+ case DMA_BUF_SET_NAME_B:
+ return dma_buf_set_name(dmabuf, (const char __user *)arg);
+
default:
return -ENOTTY;
}
}
+static void dma_buf_show_fdinfo(struct seq_file *m, struct file *file)
+{
+ struct dma_buf *dmabuf = file->private_data;
+
+ seq_printf(m, "size:\t%zu\n", dmabuf->size);
+ /* Don't count the temporary reference taken inside procfs seq_show */
+ seq_printf(m, "count:\t%ld\n", file_count(dmabuf->file) - 1);
+ seq_printf(m, "exp_name:\t%s\n", dmabuf->exp_name);
+ spin_lock(&dmabuf->name_lock);
+ if (dmabuf->name)
+ seq_printf(m, "name:\t%s\n", dmabuf->name);
+ spin_unlock(&dmabuf->name_lock);
+}
+
static const struct file_operations dma_buf_fops = {
.release = dma_buf_release,
.mmap = dma_buf_mmap_internal,
@@ -328,6 +450,7 @@ static const struct file_operations dma_buf_fops = {
#ifdef CONFIG_COMPAT
.compat_ioctl = dma_buf_ioctl,
#endif
+ .show_fdinfo = dma_buf_show_fdinfo,
};
/*
@@ -338,6 +461,32 @@ static inline int is_dma_buf_file(struct file *file)
return file->f_op == &dma_buf_fops;
}
+static struct file *dma_buf_getfile(struct dma_buf *dmabuf, int flags)
+{
+ struct file *file;
+ struct inode *inode = alloc_anon_inode(dma_buf_mnt->mnt_sb);
+
+ if (IS_ERR(inode))
+ return ERR_CAST(inode);
+
+ inode->i_size = dmabuf->size;
+ inode_set_bytes(inode, dmabuf->size);
+
+ file = alloc_file_pseudo(inode, dma_buf_mnt, "dmabuf",
+ flags, &dma_buf_fops);
+ if (IS_ERR(file))
+ goto err_alloc_file;
+ file->f_flags = flags & (O_ACCMODE | O_NONBLOCK);
+ file->private_data = dmabuf;
+ file->f_path.dentry->d_fsdata = dmabuf;
+
+ return file;
+
+err_alloc_file:
+ iput(inode);
+ return file;
+}
+
/**
* DOC: dma buf device access
*
@@ -434,8 +583,7 @@ struct dma_buf *dma_buf_export(const struct dma_buf_export_info *exp_info)
}
dmabuf->resv = resv;
- file = anon_inode_getfile("dmabuf", &dma_buf_fops, dmabuf,
- exp_info->flags);
+ file = dma_buf_getfile(dmabuf, exp_info->flags);
if (IS_ERR(file)) {
ret = PTR_ERR(file);
goto err_dmabuf;
@@ -445,6 +593,7 @@ struct dma_buf *dma_buf_export(const struct dma_buf_export_info *exp_info)
dmabuf->file = file;
mutex_init(&dmabuf->lock);
+ spin_lock_init(&dmabuf->name_lock);
INIT_LIST_HEAD(&dmabuf->attachments);
mutex_lock(&db_list.lock);
@@ -733,7 +882,8 @@ EXPORT_SYMBOL_GPL(dma_buf_unmap_attachment);
* - for each drawing/upload cycle in CPU 1. SYNC_START ioctl, 2. read/write
* to mmap area 3. SYNC_END ioctl. This can be repeated as often as you
* want (with the new data being consumed by say the GPU or the scanout
- * device)
+ * device). Optionally SYNC_USER_MAPPED can be set to restrict cache
+ * maintenance to only the parts of the buffer which are mmap(ed).
* - munmap once you don't need the buffer any more
*
* For correctness and optimal performance, it is always required to use
@@ -820,6 +970,51 @@ int dma_buf_begin_cpu_access(struct dma_buf *dmabuf,
}
EXPORT_SYMBOL_GPL(dma_buf_begin_cpu_access);
+static int dma_buf_begin_cpu_access_umapped(struct dma_buf *dmabuf,
+ enum dma_data_direction direction)
+{
+ int ret = 0;
+
+ if (WARN_ON(!dmabuf))
+ return -EINVAL;
+
+ if (dmabuf->ops->begin_cpu_access_umapped)
+ ret = dmabuf->ops->begin_cpu_access_umapped(dmabuf, direction);
+
+ /* Ensure that all fences are waited upon - but we first allow
+ * the native handler the chance to do so more efficiently if it
+ * chooses. A double invocation here will be reasonably cheap no-op.
+ */
+ if (ret == 0)
+ ret = __dma_buf_begin_cpu_access(dmabuf, direction);
+
+ return ret;
+}
+
+int dma_buf_begin_cpu_access_partial(struct dma_buf *dmabuf,
+ enum dma_data_direction direction,
+ unsigned int offset, unsigned int len)
+{
+ int ret = 0;
+
+ if (WARN_ON(!dmabuf))
+ return -EINVAL;
+
+ if (dmabuf->ops->begin_cpu_access_partial)
+ ret = dmabuf->ops->begin_cpu_access_partial(dmabuf, direction,
+ offset, len);
+
+ /* Ensure that all fences are waited upon - but we first allow
+ * the native handler the chance to do so more efficiently if it
+ * chooses. A double invocation here will be reasonably cheap no-op.
+ */
+ if (ret == 0)
+ ret = __dma_buf_begin_cpu_access(dmabuf, direction);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(dma_buf_begin_cpu_access_partial);
+
/**
* dma_buf_end_cpu_access - Must be called after accessing a dma_buf from the
* cpu in the kernel context. Calls end_cpu_access to allow exporter-specific
@@ -846,6 +1041,35 @@ int dma_buf_end_cpu_access(struct dma_buf *dmabuf,
}
EXPORT_SYMBOL_GPL(dma_buf_end_cpu_access);
+static int dma_buf_end_cpu_access_umapped(struct dma_buf *dmabuf,
+ enum dma_data_direction direction)
+{
+ int ret = 0;
+
+ WARN_ON(!dmabuf);
+
+ if (dmabuf->ops->end_cpu_access_umapped)
+ ret = dmabuf->ops->end_cpu_access_umapped(dmabuf, direction);
+
+ return ret;
+}
+
+int dma_buf_end_cpu_access_partial(struct dma_buf *dmabuf,
+ enum dma_data_direction direction,
+ unsigned int offset, unsigned int len)
+{
+ int ret = 0;
+
+ WARN_ON(!dmabuf);
+
+ if (dmabuf->ops->end_cpu_access_partial)
+ ret = dmabuf->ops->end_cpu_access_partial(dmabuf, direction,
+ offset, len);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(dma_buf_end_cpu_access_partial);
+
/**
* dma_buf_kmap - Map a page of the buffer object into kernel address space. The
* same restrictions as for kmap and friends apply.
@@ -1007,6 +1231,32 @@ void dma_buf_vunmap(struct dma_buf *dmabuf, void *vaddr)
}
EXPORT_SYMBOL_GPL(dma_buf_vunmap);
+int dma_buf_get_flags(struct dma_buf *dmabuf, unsigned long *flags)
+{
+ int ret = 0;
+
+ if (WARN_ON(!dmabuf) || !flags)
+ return -EINVAL;
+
+ if (dmabuf->ops->get_flags)
+ ret = dmabuf->ops->get_flags(dmabuf, flags);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(dma_buf_get_flags);
+
+int dma_buf_get_uuid(struct dma_buf *dmabuf, uuid_t *uuid)
+{
+ if (WARN_ON(!dmabuf) || !uuid)
+ return -EINVAL;
+
+ if (!dmabuf->ops->get_uuid)
+ return -ENODEV;
+
+ return dmabuf->ops->get_uuid(dmabuf, uuid);
+}
+EXPORT_SYMBOL_GPL(dma_buf_get_uuid);
+
#ifdef CONFIG_DEBUG_FS
static int dma_buf_debug_show(struct seq_file *s, void *unused)
{
@@ -1026,8 +1276,8 @@ static int dma_buf_debug_show(struct seq_file *s, void *unused)
return ret;
seq_puts(s, "\nDma-buf Objects:\n");
- seq_printf(s, "%-8s\t%-8s\t%-8s\t%-8s\texp_name\n",
- "size", "flags", "mode", "count");
+ seq_printf(s, "%-8s\t%-8s\t%-8s\t%-8s\texp_name\t%-8s\n",
+ "size", "flags", "mode", "count", "ino");
list_for_each_entry(buf_obj, &db_list.head, list_node) {
ret = mutex_lock_interruptible(&buf_obj->lock);
@@ -1038,11 +1288,13 @@ static int dma_buf_debug_show(struct seq_file *s, void *unused)
continue;
}
- seq_printf(s, "%08zu\t%08x\t%08x\t%08ld\t%s\n",
+ seq_printf(s, "%08zu\t%08x\t%08x\t%08ld\t%s\t%08lu\t%s\n",
buf_obj->size,
buf_obj->file->f_flags, buf_obj->file->f_mode,
file_count(buf_obj->file),
- buf_obj->exp_name);
+ buf_obj->exp_name,
+ file_inode(buf_obj->file)->i_ino,
+ buf_obj->name ?: "");
robj = buf_obj->resv;
while (true) {
@@ -1148,6 +1400,10 @@ static inline void dma_buf_uninit_debugfs(void)
static int __init dma_buf_init(void)
{
+ dma_buf_mnt = kern_mount(&dma_buf_fs_type);
+ if (IS_ERR(dma_buf_mnt))
+ return PTR_ERR(dma_buf_mnt);
+
mutex_init(&db_list.lock);
INIT_LIST_HEAD(&db_list.head);
dma_buf_init_debugfs();
@@ -1158,5 +1414,6 @@ subsys_initcall(dma_buf_init);
static void __exit dma_buf_deinit(void)
{
dma_buf_uninit_debugfs();
+ kern_unmount(dma_buf_mnt);
}
__exitcall(dma_buf_deinit);
diff --git a/drivers/edac/edac_device.h b/drivers/edac/edac_device.h
index 1aaba74..69dda2c 100644
--- a/drivers/edac/edac_device.h
+++ b/drivers/edac/edac_device.h
@@ -159,9 +159,11 @@ struct edac_device_ctl_info {
/* Per instance controls for this edac_device */
int log_ue; /* boolean for logging UEs */
int log_ce; /* boolean for logging CEs */
+ int panic_on_ce; /* boolean for panic'ing on an CE */
int panic_on_ue; /* boolean for panic'ing on an UE */
unsigned poll_msec; /* number of milliseconds to poll interval */
unsigned long delay; /* number of jiffies for poll_msec */
+ bool defer_work; /* Create a deferrable work for polling */
/* Additional top controller level attributes, but specified
* by the low level driver.
diff --git a/drivers/energy_model/Kconfig b/drivers/energy_model/Kconfig
new file mode 100644
index 0000000..3fbf968
--- /dev/null
+++ b/drivers/energy_model/Kconfig
@@ -0,0 +1,16 @@
+config LEGACY_ENERGY_MODEL_DT
+ bool "Legacy DT-based Energy Model of CPUs"
+ default n
+ help
+ The Energy Aware Scheduler (EAS) used to rely on Energy Models
+ (EMs) statically defined in the Device Tree. More recent
+ versions of EAS now rely on the EM framework to get the power
+ costs of CPUs.
+
+ This driver reads old-style static EMs in DT and feeds them in
+ the EM framework, hence enabling to use EAS on platforms with
+ old DT files. Since EAS now uses only the active costs of CPUs,
+ the cluster-related costs and idle-costs of the old EM are
+ ignored.
+
+ If in doubt, say N.
diff --git a/drivers/energy_model/Makefile b/drivers/energy_model/Makefile
new file mode 100644
index 0000000..7bc0a7e
--- /dev/null
+++ b/drivers/energy_model/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
+
+obj-$(CONFIG_LEGACY_ENERGY_MODEL_DT) += legacy_em_dt.o
diff --git a/drivers/energy_model/legacy_em_dt.c b/drivers/energy_model/legacy_em_dt.c
new file mode 100644
index 0000000..b608790
--- /dev/null
+++ b/drivers/energy_model/legacy_em_dt.c
@@ -0,0 +1,193 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Legacy Energy Model loading driver
+ *
+ * Copyright (C) 2018, ARM Ltd.
+ * Written by: Quentin Perret, ARM Ltd.
+ */
+
+#define pr_fmt(fmt) "legacy-dt-em: " fmt
+
+#include <linux/cpufreq.h>
+#include <linux/cpumask.h>
+#include <linux/cpuset.h>
+#include <linux/energy_model.h>
+#include <linux/gfp.h>
+#include <linux/init.h>
+#include <linux/of.h>
+#include <linux/printk.h>
+#include <linux/slab.h>
+
+static cpumask_var_t cpus_to_visit;
+
+static DEFINE_PER_CPU(unsigned long, nr_states) = 0;
+
+struct em_state {
+ unsigned long frequency;
+ unsigned long power;
+ unsigned long capacity;
+};
+static DEFINE_PER_CPU(struct em_state*, cpu_em) = NULL;
+
+static void finish_em_loading_workfn(struct work_struct *work);
+static DECLARE_WORK(finish_em_loading_work, finish_em_loading_workfn);
+
+static DEFINE_MUTEX(em_loading_mutex);
+
+/*
+ * Callback given to the EM framework. All this does is browse the table
+ * created by legacy_em_dt().
+ */
+static int get_power(unsigned long *mW, unsigned long *KHz, int cpu)
+{
+ unsigned long nstates = per_cpu(nr_states, cpu);
+ struct em_state *em = per_cpu(cpu_em, cpu);
+ int i;
+
+ if (!nstates || !em)
+ return -ENODEV;
+
+ for (i = 0; i < nstates - 1; i++) {
+ if (em[i].frequency > *KHz)
+ break;
+ }
+
+ *KHz = em[i].frequency;
+ *mW = em[i].power;
+
+ return 0;
+}
+
+static int init_em_dt_callback(struct notifier_block *nb, unsigned long val,
+ void *data)
+{
+ struct em_data_callback em_cb = EM_DATA_CB(get_power);
+ unsigned long nstates, scale_cpu, max_freq;
+ struct cpufreq_policy *policy = data;
+ const struct property *prop;
+ struct device_node *cn, *cp;
+ struct em_state *em;
+ int cpu, i, ret = 0;
+ const __be32 *tmp;
+
+ if (val != CPUFREQ_NOTIFY)
+ return 0;
+
+ mutex_lock(&em_loading_mutex);
+
+ /* Do not register twice an energy model */
+ for_each_cpu(cpu, policy->cpus) {
+ if (per_cpu(nr_states, cpu) || per_cpu(cpu_em, cpu)) {
+ pr_err("EM of CPU%d already loaded\n", cpu);
+ ret = -EEXIST;
+ goto unlock;
+ }
+ }
+
+ max_freq = policy->cpuinfo.max_freq;
+ if (!max_freq) {
+ pr_err("No policy->max for CPU%d\n", cpu);
+ ret = -EINVAL;
+ goto unlock;
+ }
+
+ cpu = cpumask_first(policy->cpus);
+ cn = of_get_cpu_node(cpu, NULL);
+ if (!cn) {
+ pr_err("No device_node for CPU%d\n", cpu);
+ ret = -ENODEV;
+ goto unlock;
+ }
+
+ cp = of_parse_phandle(cn, "sched-energy-costs", 0);
+ if (!cp) {
+ pr_err("CPU%d node has no sched-energy-costs\n", cpu);
+ ret = -ENODEV;
+ goto unlock;
+ }
+
+ prop = of_find_property(cp, "busy-cost-data", NULL);
+ if (!prop || !prop->value) {
+ pr_err("No busy-cost-data for CPU%d\n", cpu);
+ ret = -ENODEV;
+ goto unlock;
+ }
+
+ nstates = (prop->length / sizeof(u32)) / 2;
+ em = kcalloc(nstates, sizeof(struct em_cap_state), GFP_KERNEL);
+ if (!em) {
+ ret = -ENOMEM;
+ goto unlock;
+ }
+
+ /* Copy the capacity and power cost to the table. */
+ for (i = 0, tmp = prop->value; i < nstates; i++) {
+ em[i].capacity = be32_to_cpup(tmp++);
+ em[i].power = be32_to_cpup(tmp++);
+ }
+
+ /* Get the CPU capacity (according to the EM) */
+ scale_cpu = em[nstates - 1].capacity;
+ if (!scale_cpu) {
+ pr_err("CPU%d: capacity cannot be 0\n", cpu);
+ kfree(em);
+ ret = -EINVAL;
+ goto unlock;
+ }
+
+ /* Re-compute the intermediate frequencies based on the EM. */
+ for (i = 0; i < nstates; i++)
+ em[i].frequency = em[i].capacity * max_freq / scale_cpu;
+
+ /* Assign the table to all CPUs of this policy. */
+ for_each_cpu(i, policy->cpus) {
+ per_cpu(nr_states, i) = nstates;
+ per_cpu(cpu_em, i) = em;
+ }
+
+ pr_info("Registering EM of %*pbl\n", cpumask_pr_args(policy->cpus));
+ em_register_perf_domain(policy->cpus, nstates, &em_cb);
+
+ /* Finish the work when all possible CPUs have been registered. */
+ cpumask_andnot(cpus_to_visit, cpus_to_visit, policy->cpus);
+ if (cpumask_empty(cpus_to_visit))
+ schedule_work(&finish_em_loading_work);
+
+unlock:
+ mutex_unlock(&em_loading_mutex);
+
+ return ret;
+}
+
+static struct notifier_block init_em_dt_notifier = {
+ .notifier_call = init_em_dt_callback,
+};
+
+static void finish_em_loading_workfn(struct work_struct *work)
+{
+ cpufreq_unregister_notifier(&init_em_dt_notifier,
+ CPUFREQ_POLICY_NOTIFIER);
+ free_cpumask_var(cpus_to_visit);
+
+ /* Let the scheduler know the Energy Model is ready. */
+ rebuild_sched_domains();
+}
+
+static int __init register_cpufreq_notifier(void)
+{
+ int ret;
+
+ if (!alloc_cpumask_var(&cpus_to_visit, GFP_KERNEL))
+ return -ENOMEM;
+
+ cpumask_copy(cpus_to_visit, cpu_possible_mask);
+
+ ret = cpufreq_register_notifier(&init_em_dt_notifier,
+ CPUFREQ_POLICY_NOTIFIER);
+
+ if (ret)
+ free_cpumask_var(cpus_to_visit);
+
+ return ret;
+}
+core_initcall(register_cpufreq_notifier);
diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c
index e70f21a..4ca95a6 100644
--- a/drivers/extcon/extcon.c
+++ b/drivers/extcon/extcon.c
@@ -487,6 +487,21 @@ int extcon_sync(struct extcon_dev *edev, unsigned int id)
}
EXPORT_SYMBOL_GPL(extcon_sync);
+int extcon_blocking_sync(struct extcon_dev *edev, unsigned int id, bool val)
+{
+ int index;
+
+ if (!edev)
+ return -EINVAL;
+
+ index = find_cable_index_by_id(edev, id);
+ if (index < 0)
+ return index;
+
+ return blocking_notifier_call_chain(&edev->bnh[index], val, edev);
+}
+EXPORT_SYMBOL(extcon_blocking_sync);
+
/**
* extcon_get_state() - Get the state of an external connector.
* @edev: the extcon device
@@ -925,6 +940,38 @@ int extcon_register_notifier(struct extcon_dev *edev, unsigned int id,
}
EXPORT_SYMBOL_GPL(extcon_register_notifier);
+int extcon_register_blocking_notifier(struct extcon_dev *edev, unsigned int id,
+ struct notifier_block *nb)
+{
+ int idx = -EINVAL;
+
+ if (!edev || !nb)
+ return -EINVAL;
+
+ idx = find_cable_index_by_id(edev, id);
+ if (idx < 0)
+ return idx;
+
+ return blocking_notifier_chain_register(&edev->bnh[idx], nb);
+}
+EXPORT_SYMBOL(extcon_register_blocking_notifier);
+
+int extcon_unregister_blocking_notifier(struct extcon_dev *edev,
+ unsigned int id, struct notifier_block *nb)
+{
+ int idx;
+
+ if (!edev || !nb)
+ return -EINVAL;
+
+ idx = find_cable_index_by_id(edev, id);
+ if (idx < 0)
+ return idx;
+
+ return blocking_notifier_chain_unregister(&edev->bnh[idx], nb);
+}
+EXPORT_SYMBOL(extcon_unregister_blocking_notifier);
+
/**
* extcon_unregister_notifier() - Unregister a notifier block from the extcon.
* @edev: the extcon device
@@ -1260,6 +1307,13 @@ int extcon_dev_register(struct extcon_dev *edev)
goto err_dev;
}
+ edev->bnh = devm_kzalloc(&edev->dev,
+ sizeof(*edev->bnh) * edev->max_supported, GFP_KERNEL);
+ if (!edev->bnh) {
+ ret = -ENOMEM;
+ goto err_dev;
+ }
+
for (index = 0; index < edev->max_supported; index++)
RAW_INIT_NOTIFIER_HEAD(&edev->nh[index]);
@@ -1422,6 +1476,7 @@ const char *extcon_get_edev_name(struct extcon_dev *edev)
{
return !edev ? NULL : edev->name;
}
+EXPORT_SYMBOL_GPL(extcon_get_edev_name);
static int __init extcon_class_init(void)
{
diff --git a/drivers/extcon/extcon.h b/drivers/extcon/extcon.h
index 93b5e03..5b200dd 100644
--- a/drivers/extcon/extcon.h
+++ b/drivers/extcon/extcon.h
@@ -48,6 +48,7 @@ struct extcon_dev {
struct device dev;
struct raw_notifier_head nh_all;
struct raw_notifier_head *nh;
+ struct blocking_notifier_head *bnh;
struct list_head entry;
int max_supported;
spinlock_t lock; /* could be called by irq handler */
diff --git a/drivers/firmware/arm_scmi/perf.c b/drivers/firmware/arm_scmi/perf.c
index 87c99d2..3c8ae7c 100644
--- a/drivers/firmware/arm_scmi/perf.c
+++ b/drivers/firmware/arm_scmi/perf.c
@@ -427,6 +427,33 @@ static int scmi_dvfs_freq_get(const struct scmi_handle *handle, u32 domain,
return ret;
}
+static int scmi_dvfs_est_power_get(const struct scmi_handle *handle, u32 domain,
+ unsigned long *freq, unsigned long *power)
+{
+ struct scmi_perf_info *pi = handle->perf_priv;
+ struct perf_dom_info *dom;
+ unsigned long opp_freq;
+ int idx, ret = -EINVAL;
+ struct scmi_opp *opp;
+
+ dom = pi->dom_info + domain;
+ if (!dom)
+ return -EIO;
+
+ for (opp = dom->opp, idx = 0; idx < dom->opp_count; idx++, opp++) {
+ opp_freq = opp->perf * dom->mult_factor;
+ if (opp_freq < *freq)
+ continue;
+
+ *freq = opp_freq;
+ *power = opp->power;
+ ret = 0;
+ break;
+ }
+
+ return ret;
+}
+
static struct scmi_perf_ops perf_ops = {
.limits_set = scmi_perf_limits_set,
.limits_get = scmi_perf_limits_get,
@@ -437,6 +464,7 @@ static struct scmi_perf_ops perf_ops = {
.device_opps_add = scmi_dvfs_device_opps_add,
.freq_set = scmi_dvfs_freq_set,
.freq_get = scmi_dvfs_freq_get,
+ .est_power_get = scmi_dvfs_est_power_get,
};
static int scmi_perf_protocol_init(struct scmi_handle *handle)
diff --git a/drivers/firmware/efi/libstub/Makefile b/drivers/firmware/efi/libstub/Makefile
index d3777d7..17a623a 100644
--- a/drivers/firmware/efi/libstub/Makefile
+++ b/drivers/firmware/efi/libstub/Makefile
@@ -29,7 +29,8 @@
$(call cc-option,-ffreestanding) \
$(call cc-option,-fno-stack-protector) \
$(call cc-option,-fno-addrsig) \
- -D__DISABLE_EXPORTS
+ -D__DISABLE_EXPORTS \
+ $(DISABLE_LTO)
GCOV_PROFILE := n
KASAN_SANITIZE := n
diff --git a/drivers/firmware/psci.c b/drivers/firmware/psci.c
index c80ec1d..0863996 100644
--- a/drivers/firmware/psci.c
+++ b/drivers/firmware/psci.c
@@ -397,29 +397,26 @@ int psci_cpu_init_idle(unsigned int cpu)
return ret;
}
-static int psci_suspend_finisher(unsigned long index)
+static int psci_suspend_finisher(unsigned long state_id)
{
- u32 *state = __this_cpu_read(psci_power_state);
-
- return psci_ops.cpu_suspend(state[index - 1],
+ return psci_ops.cpu_suspend(state_id,
__pa_symbol(cpu_resume));
}
-
-int psci_cpu_suspend_enter(unsigned long index)
+int psci_cpu_suspend_enter(unsigned long state_id)
{
int ret;
- u32 *state = __this_cpu_read(psci_power_state);
+
/*
* idle state index 0 corresponds to wfi, should never be called
* from the cpu_suspend operations
*/
- if (WARN_ON_ONCE(!index))
+ if (WARN_ON_ONCE(!state_id))
return -EINVAL;
- if (!psci_power_state_loses_context(state[index - 1]))
- ret = psci_ops.cpu_suspend(state[index - 1], 0);
+ if (!psci_power_state_loses_context(state_id))
+ ret = psci_ops.cpu_suspend(state_id, 0);
else
- ret = cpu_suspend(index, psci_suspend_finisher);
+ ret = cpu_suspend(state_id, psci_suspend_finisher);
return ret;
}
diff --git a/drivers/gnss/Kconfig b/drivers/gnss/Kconfig
index 6abc885..73482e89 100644
--- a/drivers/gnss/Kconfig
+++ b/drivers/gnss/Kconfig
@@ -40,4 +40,19 @@
If unsure, say N.
+config GNSS_CMDLINE_SERIAL
+ tristate "Command line test driver for GNSS"
+ depends on SERIAL_DEV_BUS
+ select GNSS_SERIAL
+ ---help---
+ Say Y here if you want to test the GNSS subsystem but do not have a
+ way to communicate a binding through firmware such as DT or ACPI.
+ The correct serdev device and protocol type must be specified on
+ the module command line.
+
+ To compile this driver as a module, choose M here: the module will
+ be called gnss-cmdline.
+
+ If unsure, say N.
+
endif # GNSS
diff --git a/drivers/gnss/Makefile b/drivers/gnss/Makefile
index 5cf0ebe..d517c30 100644
--- a/drivers/gnss/Makefile
+++ b/drivers/gnss/Makefile
@@ -14,3 +14,6 @@
obj-$(CONFIG_GNSS_UBX_SERIAL) += gnss-ubx.o
gnss-ubx-y := ubx.o
+
+obj-$(CONFIG_GNSS_CMDLINE_SERIAL) += gnss-cmdline.o
+gnss-cmdline-y := cmdline.o
diff --git a/drivers/gnss/cmdline.c b/drivers/gnss/cmdline.c
new file mode 100644
index 0000000..3e1d2463
--- /dev/null
+++ b/drivers/gnss/cmdline.c
@@ -0,0 +1,139 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test driver for GNSS. This driver requires the serdev binding and protocol
+ * type to be specified on the module command line.
+ *
+ * Copyright 2019 Google LLC
+ */
+
+#include <linux/device.h>
+#include <linux/gnss.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/serdev.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+
+#include "serial.h"
+
+#define GNSS_CMDLINE_MODULE_NAME "gnss-cmdline"
+
+#define gnss_cmdline_err(...) \
+ pr_err(GNSS_CMDLINE_MODULE_NAME ": " __VA_ARGS__)
+
+static char *serdev;
+module_param(serdev, charp, 0644);
+MODULE_PARM_DESC(serdev, "serial device to wrap");
+
+static int type;
+module_param(type, int, 0644);
+MODULE_PARM_DESC(serdev, "GNSS protocol type (see 'enum gnss_type')");
+
+static struct serdev_device *serdev_device;
+
+static int name_match(struct device *dev, void *data)
+{
+ return strstr(dev_name(dev), data) != NULL;
+}
+
+static int __init gnss_cmdline_init(void)
+{
+ struct device *serial_dev, *port_dev, *serdev_dev;
+ char *driver_name, *port_name, *serdev_name;
+ char *serdev_dup, *serdev_dup_sep;
+ struct gnss_serial *gserial;
+ int err = -ENODEV;
+
+ /* User did not set the serdev module parameter */
+ if (!serdev)
+ return 0;
+
+ if (type < 0 || type >= GNSS_TYPE_COUNT) {
+ gnss_cmdline_err("invalid gnss type '%d'\n", type);
+ return -EINVAL;
+ }
+
+ serdev_dup = serdev_dup_sep = kstrdup(serdev, GFP_KERNEL);
+ if (!serdev_dup)
+ return -ENOMEM;
+
+ driver_name = strsep(&serdev_dup_sep, "/");
+ if (!driver_name) {
+ gnss_cmdline_err("driver name missing\n");
+ goto err_free_serdev_dup;
+ }
+
+ port_name = strsep(&serdev_dup_sep, "/");
+ if (!port_name) {
+ gnss_cmdline_err("port name missing\n");
+ goto err_free_serdev_dup;
+ }
+
+ serdev_name = strsep(&serdev_dup_sep, "/");
+ if (!serdev_name) {
+ gnss_cmdline_err("serdev name missing\n");
+ goto err_free_serdev_dup;
+ }
+
+ /* Find the driver device instance (e.g. serial8250) */
+ serial_dev = bus_find_device_by_name(&platform_bus_type,
+ NULL, driver_name);
+ if (!serial_dev) {
+ gnss_cmdline_err("no device '%s'\n", driver_name);
+ goto err_free_serdev_dup;
+ }
+
+ /* Find the port device instance (e.g. serial0) */
+ port_dev = device_find_child(serial_dev, port_name, name_match);
+ if (!port_dev) {
+ gnss_cmdline_err("no port '%s'\n", port_name);
+ goto err_free_serdev_dup;
+ }
+
+ /* Find the serdev device instance (e.g. serial0-0) */
+ serdev_dev = device_find_child(port_dev, serdev_name, name_match);
+ if (!serdev_dev) {
+ gnss_cmdline_err("no serdev '%s'\n", serdev_name);
+ goto err_free_serdev_dup;
+ }
+
+ gserial = gnss_serial_allocate(to_serdev_device(serdev_dev), 0);
+ if (IS_ERR(gserial)) {
+ err = PTR_ERR(gserial);
+ goto err_free_serdev_dup;
+ }
+
+ gserial->gdev->type = type;
+
+ err = gnss_serial_register(gserial);
+ if (err) {
+ gnss_serial_free(gserial);
+ goto err_free_serdev_dup;
+ }
+
+ serdev_device = to_serdev_device(serdev_dev);
+ err = 0;
+err_free_serdev_dup:
+ kfree(serdev_dup);
+ return err;
+}
+
+static void __exit gnss_cmdline_exit(void)
+{
+ struct gnss_serial *gserial;
+
+ if (!serdev_device)
+ return;
+
+ gserial = serdev_device_get_drvdata(serdev_device);
+
+ gnss_serial_deregister(gserial);
+ gnss_serial_free(gserial);
+}
+
+module_init(gnss_cmdline_init);
+module_exit(gnss_cmdline_exit);
+
+MODULE_AUTHOR("Alistair Delva <adelva@google.com>");
+MODULE_DESCRIPTION("GNSS command line driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 2c34e953..20466ee 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -12,7 +12,6 @@
menuconfig GPIOLIB
bool "GPIO Support"
- select ANON_INODES
help
This enables GPIO support through the generic GPIO library.
You only need to enable this, if you also want to enable
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 12472b8..602dce9 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1909,7 +1909,11 @@ static int gpiochip_add_irqchip(struct gpio_chip *gpiochip,
type = IRQ_TYPE_NONE;
}
- gpiochip->to_irq = gpiochip_to_irq;
+#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
+ if (!gpiochip->to_irq)
+#endif
+ gpiochip->to_irq = gpiochip_to_irq;
+
gpiochip->irq.default_type = type;
gpiochip->irq.lock_key = lock_key;
gpiochip->irq.request_key = request_key;
@@ -1919,9 +1923,16 @@ static int gpiochip_add_irqchip(struct gpio_chip *gpiochip,
else
ops = &gpiochip_domain_ops;
- gpiochip->irq.domain = irq_domain_add_simple(np, gpiochip->ngpio,
- gpiochip->irq.first,
- ops, gpiochip);
+#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
+ if (gpiochip->irq.parent_domain)
+ gpiochip->irq.domain = irq_domain_add_hierarchy(gpiochip->irq.parent_domain,
+ 0, gpiochip->ngpio,
+ np, ops, gpiochip);
+ else
+#endif
+ gpiochip->irq.domain = irq_domain_add_simple(np, gpiochip->ngpio,
+ gpiochip->irq.first,
+ ops, gpiochip);
if (!gpiochip->irq.domain)
return -EINVAL;
diff --git a/drivers/gpu/Makefile b/drivers/gpu/Makefile
index e9ed439..99251b5 100644
--- a/drivers/gpu/Makefile
+++ b/drivers/gpu/Makefile
@@ -4,3 +4,4 @@
obj-$(CONFIG_TEGRA_HOST1X) += host1x/
obj-y += drm/ vga/
obj-$(CONFIG_IMX_IPUV3_CORE) += ipu-v3/
+obj-$(CONFIG_TRACE_GPU_MEM) += trace/
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
index f92597c..40339d0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
@@ -1158,7 +1158,7 @@ int amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu(
alloc_flags = 0;
if (!offset || !*offset)
return -EINVAL;
- user_addr = *offset;
+ user_addr = untagged_addr(*offset);
} else {
return -EINVAL;
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index 0db05ff..98d20ef 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -299,6 +299,8 @@ int amdgpu_gem_userptr_ioctl(struct drm_device *dev, void *data,
uint32_t handle;
int r;
+ args->addr = untagged_addr(args->addr);
+
if (offset_in_page(args->addr | args->size))
return -EINVAL;
diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index 281cf9c..cb3cc5a 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -1410,6 +1410,8 @@ static int drm_atomic_connector_set_property(struct drm_connector *connector,
return -EINVAL;
}
state->content_protection = val;
+ } else if (property == connector->colorspace_property) {
+ state->colorspace = val;
} else if (property == config->writeback_fb_id_property) {
struct drm_framebuffer *fb = drm_framebuffer_lookup(dev, NULL, val);
int ret = drm_atomic_set_writeback_fb_for_connector(state, fb);
@@ -1507,6 +1509,8 @@ drm_atomic_connector_get_property(struct drm_connector *connector,
*val = state->picture_aspect_ratio;
} else if (property == config->content_type_property) {
*val = state->content_type;
+ } else if (property == connector->colorspace_property) {
+ *val = state->colorspace;
} else if (property == connector->scaling_mode_property) {
*val = state->scaling_mode;
} else if (property == connector->content_protection_property) {
@@ -1702,6 +1706,27 @@ drm_atomic_set_crtc_for_connector(struct drm_connector_state *conn_state,
struct drm_connector *connector = conn_state->connector;
struct drm_crtc_state *crtc_state;
+ /*
+ * For compatibility with legacy users, we want to make sure that
+ * we allow DPMS On<->Off modesets on unregistered connectors, since
+ * legacy modesetting users will not be expecting these to fail. We do
+ * not however, want to allow legacy users to assign a connector
+ * that's been unregistered from sysfs to another CRTC, since doing
+ * this with a now non-existent connector could potentially leave us
+ * in an invalid state.
+ *
+ * Since the connector can be unregistered at any point during an
+ * atomic check or commit, this is racy. But that's OK: all we care
+ * about is ensuring that userspace can't use this connector for new
+ * configurations after it's been notified that the connector is no
+ * longer present.
+ */
+ if (!READ_ONCE(connector->registered) && crtc) {
+ DRM_DEBUG_ATOMIC("[CONNECTOR:%d:%s] is not registered\n",
+ connector->base.id, connector->name);
+ return -EINVAL;
+ }
+
if (conn_state->crtc == crtc)
return 0;
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
index 6060b69..2992f4f 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -307,26 +307,6 @@ update_connector_routing(struct drm_atomic_state *state,
return 0;
}
- crtc_state = drm_atomic_get_new_crtc_state(state,
- new_connector_state->crtc);
- /*
- * For compatibility with legacy users, we want to make sure that
- * we allow DPMS On->Off modesets on unregistered connectors. Modesets
- * which would result in anything else must be considered invalid, to
- * avoid turning on new displays on dead connectors.
- *
- * Since the connector can be unregistered at any point during an
- * atomic check or commit, this is racy. But that's OK: all we care
- * about is ensuring that userspace can't do anything but shut off the
- * display on a connector that was destroyed after its been notified,
- * not before.
- */
- if (drm_connector_is_unregistered(connector) && crtc_state->active) {
- DRM_DEBUG_ATOMIC("[CONNECTOR:%d:%s] is not registered\n",
- connector->base.id, connector->name);
- return -EINVAL;
- }
-
funcs = connector->helper_private;
if (funcs->atomic_best_encoder)
@@ -371,6 +351,7 @@ update_connector_routing(struct drm_atomic_state *state,
set_best_encoder(state, new_connector_state, new_encoder);
+ crtc_state = drm_atomic_get_new_crtc_state(state, new_connector_state->crtc);
crtc_state->connectors_changed = true;
DRM_DEBUG_ATOMIC("[CONNECTOR:%d:%s] using [ENCODER:%d:%s] on [CRTC:%d:%s]\n",
@@ -2837,6 +2818,7 @@ int __drm_atomic_helper_disable_plane(struct drm_plane *plane,
return 0;
}
+EXPORT_SYMBOL_GPL(__drm_atomic_helper_disable_plane);
static int update_output_state(struct drm_atomic_state *state,
struct drm_mode_set *set)
@@ -3022,6 +3004,7 @@ int __drm_atomic_helper_set_config(struct drm_mode_set *set,
return 0;
}
+EXPORT_SYMBOL_GPL(__drm_atomic_helper_set_config);
static int __drm_atomic_helper_disable_all(struct drm_device *dev,
struct drm_modeset_acquire_ctx *ctx,
diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c
index df31c38..d394469 100644
--- a/drivers/gpu/drm/drm_client.c
+++ b/drivers/gpu/drm/drm_client.c
@@ -60,7 +60,6 @@ static void drm_client_close(struct drm_client_dev *client)
drm_file_free(client->file);
}
-EXPORT_SYMBOL(drm_client_close);
/**
* drm_client_init - Initialise a DRM client
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index 7bb68ca..4779481 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -256,9 +256,7 @@ int drm_connector_init(struct drm_device *dev,
if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL &&
connector_type != DRM_MODE_CONNECTOR_WRITEBACK)
- drm_object_attach_property(&connector->base,
- config->edid_property,
- 0);
+ drm_connector_attach_edid_property(connector);
drm_object_attach_property(&connector->base,
config->dpms_property, 0);
@@ -291,6 +289,24 @@ int drm_connector_init(struct drm_device *dev,
EXPORT_SYMBOL(drm_connector_init);
/**
+ * drm_connector_attach_edid_property - attach edid property.
+ * @connector: the connector
+ *
+ * Some connector types like DRM_MODE_CONNECTOR_VIRTUAL do not get a
+ * edid property attached by default. This function can be used to
+ * explicitly enable the edid property in these cases.
+ */
+void drm_connector_attach_edid_property(struct drm_connector *connector)
+{
+ struct drm_mode_config *config = &connector->dev->mode_config;
+
+ drm_object_attach_property(&connector->base,
+ config->edid_property,
+ 0);
+}
+EXPORT_SYMBOL(drm_connector_attach_edid_property);
+
+/**
* drm_connector_attach_encoder - attach a connector to an encoder
* @connector: connector to attach
* @encoder: encoder to attach @connector to
@@ -375,8 +391,7 @@ void drm_connector_cleanup(struct drm_connector *connector)
/* The connector should have been removed from userspace long before
* it is finally destroyed.
*/
- if (WARN_ON(connector->registration_state ==
- DRM_CONNECTOR_REGISTERED))
+ if (WARN_ON(connector->registered))
drm_connector_unregister(connector);
if (connector->tile_group) {
@@ -433,7 +448,7 @@ int drm_connector_register(struct drm_connector *connector)
return 0;
mutex_lock(&connector->mutex);
- if (connector->registration_state != DRM_CONNECTOR_INITIALIZING)
+ if (connector->registered)
goto unlock;
ret = drm_sysfs_connector_add(connector);
@@ -453,7 +468,7 @@ int drm_connector_register(struct drm_connector *connector)
drm_mode_object_register(connector->dev, &connector->base);
- connector->registration_state = DRM_CONNECTOR_REGISTERED;
+ connector->registered = true;
goto unlock;
err_debugfs:
@@ -475,7 +490,7 @@ EXPORT_SYMBOL(drm_connector_register);
void drm_connector_unregister(struct drm_connector *connector)
{
mutex_lock(&connector->mutex);
- if (connector->registration_state != DRM_CONNECTOR_REGISTERED) {
+ if (!connector->registered) {
mutex_unlock(&connector->mutex);
return;
}
@@ -486,7 +501,7 @@ void drm_connector_unregister(struct drm_connector *connector)
drm_sysfs_connector_remove(connector);
drm_debugfs_connector_remove(connector);
- connector->registration_state = DRM_CONNECTOR_UNREGISTERED;
+ connector->registered = false;
mutex_unlock(&connector->mutex);
}
EXPORT_SYMBOL(drm_connector_unregister);
@@ -806,6 +821,55 @@ static struct drm_prop_enum_list drm_cp_enum_list[] = {
};
DRM_ENUM_NAME_FN(drm_get_content_protection_name, drm_cp_enum_list)
+static const struct drm_prop_enum_list hdmi_colorspaces[] = {
+ /* For Default case, driver will set the colorspace */
+ { DRM_MODE_COLORIMETRY_DEFAULT, "Default" },
+ /* Standard Definition Colorimetry based on CEA 861 */
+ { DRM_MODE_COLORIMETRY_SMPTE_170M_YCC, "SMPTE_170M_YCC" },
+ { DRM_MODE_COLORIMETRY_BT709_YCC, "BT709_YCC" },
+ /* Standard Definition Colorimetry based on IEC 61966-2-4 */
+ { DRM_MODE_COLORIMETRY_XVYCC_601, "XVYCC_601" },
+ /* High Definition Colorimetry based on IEC 61966-2-4 */
+ { DRM_MODE_COLORIMETRY_XVYCC_709, "XVYCC_709" },
+ /* Colorimetry based on IEC 61966-2-1/Amendment 1 */
+ { DRM_MODE_COLORIMETRY_SYCC_601, "SYCC_601" },
+ /* Colorimetry based on IEC 61966-2-5 [33] */
+ { DRM_MODE_COLORIMETRY_OPYCC_601, "opYCC_601" },
+ /* Colorimetry based on IEC 61966-2-5 */
+ { DRM_MODE_COLORIMETRY_OPRGB, "opRGB" },
+ /* Colorimetry based on ITU-R BT.2020 */
+ { DRM_MODE_COLORIMETRY_BT2020_CYCC, "BT2020_CYCC" },
+ /* Colorimetry based on ITU-R BT.2020 */
+ { DRM_MODE_COLORIMETRY_BT2020_RGB, "BT2020_RGB" },
+ /* Colorimetry based on ITU-R BT.2020 */
+ { DRM_MODE_COLORIMETRY_BT2020_YCC, "BT2020_YCC" },
+ /* Added as part of Additional Colorimetry Extension in 861.G */
+ { DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65, "DCI-P3_RGB_D65" },
+ { DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER, "DCI-P3_RGB_Theater" },
+};
+
+static const struct drm_prop_enum_list dp_colorspaces[] = {
+ /* For Default case, driver will set the colorspace */
+ { DRM_MODE_COLORIMETRY_DEFAULT, "Default" },
+ /* Standard Definition Colorimetry based on IEC 61966-2-4 */
+ { DRM_MODE_COLORIMETRY_XVYCC_601, "XVYCC_601" },
+ /* High Definition Colorimetry based on IEC 61966-2-4 */
+ { DRM_MODE_COLORIMETRY_XVYCC_709, "XVYCC_709" },
+ /* Colorimetry based on IEC 61966-2-5 */
+ { DRM_MODE_COLORIMETRY_OPRGB, "opRGB" },
+ { DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65, "DCI-P3_RGB_D65" },
+ /* DP MSA Colorimetry */
+ { DRM_MODE_DP_COLORIMETRY_BT601_YCC, "YCBCR_ITU_601" },
+ { DRM_MODE_DP_COLORIMETRY_BT709_YCC, "YCBCR_ITU_709" },
+ { DRM_MODE_DP_COLORIMETRY_SRGB, "sRGB" },
+ { DRM_MODE_DP_COLORIMETRY_RGB_WIDE_GAMUT, "RGB Wide Gamut" },
+ { DRM_MODE_DP_COLORIMETRY_SCRGB, "scRGB" },
+ /* Colorimetry based on ITU-R BT.2020 */
+ { DRM_MODE_COLORIMETRY_BT2020_RGB, "BT2020_RGB" },
+ /* Colorimetry based on ITU-R BT.2020 */
+ { DRM_MODE_COLORIMETRY_BT2020_YCC, "BT2020_YCC" },
+};
+
/**
* DOC: standard connector properties
*
@@ -1375,6 +1439,65 @@ int drm_mode_create_aspect_ratio_property(struct drm_device *dev)
EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property);
/**
+ * DOC: standard connector properties
+ *
+ * Colorspace:
+ * drm_mode_create_colorspace_property - create colorspace property
+ * This property helps select a suitable colorspace based on the sink
+ * capability. Modern sink devices support wider gamut like BT2020.
+ * This helps switch to BT2020 mode if the BT2020 encoded video stream
+ * is being played by the user, same for any other colorspace. Thereby
+ * giving a good visual experience to users.
+ *
+ * The expectation from userspace is that it should parse the EDID
+ * and get supported colorspaces. Use this property and switch to the
+ * one supported. Sink supported colorspaces should be retrieved by
+ * userspace from EDID and driver will not explicitly expose them.
+ *
+ * Basically the expectation from userspace is:
+ * - Set up CRTC DEGAMMA/CTM/GAMMA to convert to some sink
+ * colorspace
+ * - Set this new property to let the sink know what it
+ * converted the CRTC output to.
+ * - This property is just to inform sink what colorspace
+ * source is trying to drive.
+ *
+ * Called by a driver the first time it's needed, must be attached to desired
+ * connectors.
+ */
+int drm_mode_create_colorspace_property(struct drm_connector *connector)
+{
+ struct drm_device *dev = connector->dev;
+ struct drm_property *prop;
+
+ if (connector->connector_type == DRM_MODE_CONNECTOR_HDMIA ||
+ connector->connector_type == DRM_MODE_CONNECTOR_HDMIB) {
+ prop = drm_property_create_enum(dev, DRM_MODE_PROP_ENUM,
+ "Colorspace",
+ hdmi_colorspaces,
+ ARRAY_SIZE(hdmi_colorspaces));
+ if (!prop)
+ return -ENOMEM;
+ } else if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
+ connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
+ prop = drm_property_create_enum(dev, DRM_MODE_PROP_ENUM,
+ "Colorspace", dp_colorspaces,
+ ARRAY_SIZE(dp_colorspaces));
+
+ if (!prop)
+ return -ENOMEM;
+ } else {
+ DRM_DEBUG_KMS("Colorspace property not supported\n");
+ return 0;
+ }
+
+ connector->colorspace_property = prop;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_create_colorspace_property);
+
+/**
* drm_mode_create_content_type_property - create content type property
* @dev: DRM device
*
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index c50fe91..0a1092d 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -52,10 +52,6 @@ static int drm_dp_dpcd_write_payload(struct drm_dp_mst_topology_mgr *mgr,
int id,
struct drm_dp_payload *payload);
-static int drm_dp_send_dpcd_write(struct drm_dp_mst_topology_mgr *mgr,
- struct drm_dp_mst_port *port,
- int offset, int size, u8 *bytes);
-
static void drm_dp_send_link_address(struct drm_dp_mst_topology_mgr *mgr,
struct drm_dp_mst_branch *mstb);
static int drm_dp_send_enum_path_resources(struct drm_dp_mst_topology_mgr *mgr,
@@ -489,6 +485,7 @@ static bool drm_dp_sideband_parse_enum_path_resources_ack(struct drm_dp_sideband
{
int idx = 1;
repmsg->u.path_resources.port_number = (raw->msg[idx] >> 4) & 0xf;
+ repmsg->u.path_resources.fec_capable = raw->msg[idx] & 0x1;
idx++;
if (idx > raw->curlen)
goto fail_len;
@@ -1404,7 +1401,6 @@ static bool drm_dp_validate_guid(struct drm_dp_mst_topology_mgr *mgr,
return false;
}
-#if 0
static int build_dpcd_read(struct drm_dp_sideband_msg_tx *msg, u8 port_num, u32 offset, u8 num_bytes)
{
struct drm_dp_sideband_msg_req_body req;
@@ -1417,7 +1413,6 @@ static int build_dpcd_read(struct drm_dp_sideband_msg_tx *msg, u8 port_num, u32
return 0;
}
-#endif
static int drm_dp_send_sideband_msg(struct drm_dp_mst_topology_mgr *mgr,
bool up, u8 *msg, int len)
@@ -1681,6 +1676,7 @@ static int drm_dp_send_enum_path_resources(struct drm_dp_mst_topology_mgr *mgr,
DRM_DEBUG_KMS("enum path resources %d: %d %d\n", txmsg->reply.u.path_resources.port_number, txmsg->reply.u.path_resources.full_payload_bw_number,
txmsg->reply.u.path_resources.avail_payload_bw_number);
port->available_pbn = txmsg->reply.u.path_resources.avail_payload_bw_number;
+ port->fec_capable = txmsg->reply.u.path_resources.fec_capable;
}
}
@@ -1809,6 +1805,42 @@ int drm_dp_send_power_updown_phy(struct drm_dp_mst_topology_mgr *mgr,
}
EXPORT_SYMBOL(drm_dp_send_power_updown_phy);
+int drm_dp_mst_get_dsc_info(struct drm_dp_mst_topology_mgr *mgr,
+ struct drm_dp_mst_port *port,
+ struct drm_dp_mst_dsc_info *dsc_info)
+{
+ if (!dsc_info)
+ return -EINVAL;
+
+ port = drm_dp_get_validated_port_ref(mgr, port);
+ if (!port)
+ return -EINVAL;
+
+ memcpy(dsc_info, &port->dsc_info, sizeof(struct drm_dp_mst_dsc_info));
+ drm_dp_put_port(port);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(drm_dp_mst_get_dsc_info);
+
+int drm_dp_mst_update_dsc_info(struct drm_dp_mst_topology_mgr *mgr,
+ struct drm_dp_mst_port *port,
+ struct drm_dp_mst_dsc_info *dsc_info)
+{
+ if (!dsc_info)
+ return -EINVAL;
+
+ port = drm_dp_get_validated_port_ref(mgr, port);
+ if (!port)
+ return -EINVAL;
+
+ memcpy(&port->dsc_info, dsc_info, sizeof(struct drm_dp_mst_dsc_info));
+ drm_dp_put_port(port);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(drm_dp_mst_update_dsc_info);
+
static int drm_dp_create_payload_step1(struct drm_dp_mst_topology_mgr *mgr,
int id,
struct drm_dp_payload *payload)
@@ -1987,10 +2019,9 @@ int drm_dp_update_payload_part2(struct drm_dp_mst_topology_mgr *mgr)
}
EXPORT_SYMBOL(drm_dp_update_payload_part2);
-#if 0 /* unused as of yet */
-static int drm_dp_send_dpcd_read(struct drm_dp_mst_topology_mgr *mgr,
- struct drm_dp_mst_port *port,
- int offset, int size)
+int drm_dp_send_dpcd_read(struct drm_dp_mst_topology_mgr *mgr,
+ struct drm_dp_mst_port *port,
+ int offset, int size, u8 *bytes)
{
int len;
struct drm_dp_sideband_msg_tx *txmsg;
@@ -1999,18 +2030,18 @@ static int drm_dp_send_dpcd_read(struct drm_dp_mst_topology_mgr *mgr,
if (!txmsg)
return -ENOMEM;
- len = build_dpcd_read(txmsg, port->port_num, 0, 8);
+ len = build_dpcd_read(txmsg, port->port_num, offset, size);
txmsg->dst = port->parent;
drm_dp_queue_down_tx(mgr, txmsg);
return 0;
}
-#endif
+EXPORT_SYMBOL_GPL(drm_dp_send_dpcd_read);
-static int drm_dp_send_dpcd_write(struct drm_dp_mst_topology_mgr *mgr,
- struct drm_dp_mst_port *port,
- int offset, int size, u8 *bytes)
+int drm_dp_send_dpcd_write(struct drm_dp_mst_topology_mgr *mgr,
+ struct drm_dp_mst_port *port,
+ int offset, int size, u8 *bytes)
{
int len;
int ret;
@@ -2044,6 +2075,22 @@ static int drm_dp_send_dpcd_write(struct drm_dp_mst_topology_mgr *mgr,
drm_dp_put_mst_branch_device(mstb);
return ret;
}
+EXPORT_SYMBOL_GPL(drm_dp_send_dpcd_write);
+
+int drm_dp_mst_get_max_sdp_streams_supported(
+ struct drm_dp_mst_topology_mgr *mgr,
+ struct drm_dp_mst_port *port)
+{
+ int ret = -1;
+
+ port = drm_dp_get_validated_port_ref(mgr, port);
+ if (!port)
+ return ret;
+ ret = port->num_sdp_streams;
+ drm_dp_put_port(port);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(drm_dp_mst_get_max_sdp_streams_supported);
static int drm_dp_encode_up_ack_reply(struct drm_dp_sideband_msg_tx *msg, u8 req_type)
{
@@ -2550,6 +2597,20 @@ bool drm_dp_mst_port_has_audio(struct drm_dp_mst_topology_mgr *mgr,
}
EXPORT_SYMBOL(drm_dp_mst_port_has_audio);
+bool drm_dp_mst_has_fec(struct drm_dp_mst_topology_mgr *mgr,
+ struct drm_dp_mst_port *port)
+{
+ bool ret = false;
+
+ port = drm_dp_get_validated_port_ref(mgr, port);
+ if (!port)
+ return ret;
+ ret = port->fec_capable;
+ drm_dp_put_port(port);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(drm_dp_mst_has_fec);
+
/**
* drm_dp_mst_get_edid() - get EDID for an MST port
* @connector: toplevel connector to get EDID for
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 108f542..448ddce 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -98,6 +98,14 @@ struct detailed_mode_closure {
#define LEVEL_GTF2 2
#define LEVEL_CVT 3
+/*Enum storing luminance types for HDR blocks in EDID*/
+enum luminance_value {
+ NO_LUMINANCE_DATA = 3,
+ MAXIMUM_LUMINANCE = 4,
+ FRAME_AVERAGE_LUMINANCE = 5,
+ MINIMUM_LUMINANCE = 6
+};
+
static const struct edid_quirk {
char vendor[4];
int product_id;
@@ -2898,15 +2906,20 @@ add_detailed_modes(struct drm_connector *connector, struct edid *edid,
return closure.modes;
}
-
+#define VIDEO_CAPABILITY_EXTENDED_DATA_BLOCK 0x0
#define AUDIO_BLOCK 0x01
#define VIDEO_BLOCK 0x02
#define VENDOR_BLOCK 0x03
#define SPEAKER_BLOCK 0x04
+#define COLORIMETRY_EXTENDED_DATA_BLOCK 0x05
+#define HDR_STATIC_METADATA_BLOCK 0x6
#define USE_EXTENDED_TAG 0x07
#define EXT_VIDEO_CAPABILITY_BLOCK 0x00
#define EXT_VIDEO_DATA_BLOCK_420 0x0E
#define EXT_VIDEO_CAP_BLOCK_Y420CMDB 0x0F
+#define VENDOR_SPECIFIC_VIDEO_DATA_BLOCK 0x01
+#define VSVDB_HDR10_PLUS_IEEE_CODE 0x90848b
+#define VSVDB_HDR10_PLUS_APP_VER_MASK 0x3
#define EDID_BASIC_AUDIO (1 << 6)
#define EDID_CEA_YCRCB444 (1 << 5)
#define EDID_CEA_YCRCB422 (1 << 4)
@@ -3957,6 +3970,288 @@ drm_parse_hdmi_vsdb_audio(struct drm_connector *connector, const u8 *db)
connector->audio_latency[1]);
}
+/*
+ * drm_extract_vcdb_info - Parse the HDMI Video Capability Data Block
+ * @connector: connector corresponding to the HDMI sink
+ * @db: start of the CEA vendor specific block
+ *
+ * Parses the HDMI VCDB to extract sink info for @connector.
+ */
+static void
+drm_extract_vcdb_info(struct drm_connector *connector, const u8 *db)
+{
+ /*
+ * Check if the sink specifies underscan
+ * support for:
+ * BIT 5: preferred video format
+ * BIT 3: IT video format
+ * BIT 1: CE video format
+ */
+
+ connector->pt_scan_info =
+ (db[2] & (BIT(4) | BIT(5))) >> 4;
+ connector->it_scan_info =
+ (db[2] & (BIT(3) | BIT(2))) >> 2;
+ connector->ce_scan_info =
+ db[2] & (BIT(1) | BIT(0));
+
+ DRM_DEBUG_KMS("Scan Info (pt|it|ce): (%d|%d|%d)",
+ (int) connector->pt_scan_info,
+ (int) connector->it_scan_info,
+ (int) connector->ce_scan_info);
+}
+
+static void
+drm_parse_vsvdb_hdr_plus(struct drm_connector *connector, const u8 *db)
+{
+ connector->hdr_plus_app_ver = db[5] & VSVDB_HDR10_PLUS_APP_VER_MASK;
+}
+
+static void
+drm_extract_vsvdb_info(struct drm_connector *connector, const u8 *db)
+{
+ u8 db_len = cea_db_payload_len(db);
+ u32 ieee_code = 0;
+
+ if (db_len < 5)
+ return;
+
+ /* Bytes 2-4: IEEE 24-bit code, LSB first */
+ ieee_code = db[2] | (db[3] << 8) | (db[4] << 16);
+ DRM_DEBUG_KMS("found VSVDB with IEEE code 0x%x\n", ieee_code);
+ if (ieee_code == VSVDB_HDR10_PLUS_IEEE_CODE)
+ drm_parse_vsvdb_hdr_plus(connector, db);
+}
+
+static bool drm_edid_is_luminance_value_present(
+u32 block_length, enum luminance_value value)
+{
+ return block_length > NO_LUMINANCE_DATA && value <= block_length;
+}
+
+/*
+ * drm_extract_clrmetry_db - Parse the HDMI colorimetry extended block
+ * @connector: connector corresponding to the HDMI sink
+ * @db: start of the HDMI colorimetry extended block
+ *
+ * Parses the HDMI colorimetry block to extract sink info for @connector.
+ */
+static void
+drm_extract_clrmetry_db(struct drm_connector *connector, const u8 *db)
+{
+
+ if (!db) {
+ DRM_ERROR("invalid db\n");
+ return;
+ }
+
+ /* Byte 3 Bit 0: xvYCC_601 */
+ if (db[2] & BIT(0))
+ connector->color_enc_fmt |= DRM_EDID_CLRMETRY_xvYCC_601;
+ /* Byte 3 Bit 1: xvYCC_709 */
+ if (db[2] & BIT(1))
+ connector->color_enc_fmt |= DRM_EDID_CLRMETRY_xvYCC_709;
+ /* Byte 3 Bit 2: sYCC_601 */
+ if (db[2] & BIT(2))
+ connector->color_enc_fmt |= DRM_EDID_CLRMETRY_sYCC_601;
+ /* Byte 3 Bit 3: ADBYCC_601 */
+ if (db[2] & BIT(3))
+ connector->color_enc_fmt |= DRM_EDID_CLRMETRY_ADBYCC_601;
+ /* Byte 3 Bit 4: ADB_RGB */
+ if (db[2] & BIT(4))
+ connector->color_enc_fmt |= DRM_EDID_CLRMETRY_ADB_RGB;
+ /* Byte 3 Bit 5: BT2020_CYCC */
+ if (db[2] & BIT(5))
+ connector->color_enc_fmt |= DRM_EDID_CLRMETRY_BT2020_CYCC;
+ /* Byte 3 Bit 6: BT2020_YCC */
+ if (db[2] & BIT(6))
+ connector->color_enc_fmt |= DRM_EDID_CLRMETRY_BT2020_YCC;
+ /* Byte 3 Bit 7: BT2020_RGB */
+ if (db[2] & BIT(7))
+ connector->color_enc_fmt |= DRM_EDID_CLRMETRY_BT2020_RGB;
+ /* Byte 4 Bit 7: DCI-P3 */
+ if (db[3] & BIT(7))
+ connector->color_enc_fmt |= DRM_EDID_CLRMETRY_DCI_P3;
+
+ DRM_DEBUG_KMS("colorimetry fmts = 0x%x\n", connector->color_enc_fmt);
+}
+
+/*
+ * drm_extract_hdr_db - Parse the HDMI HDR extended block
+ * @connector: connector corresponding to the HDMI sink
+ * @db: start of the HDMI HDR extended block
+ *
+ * Parses the HDMI HDR extended block to extract sink info for @connector.
+ */
+static void
+drm_extract_hdr_db(struct drm_connector *connector, const u8 *db)
+{
+
+ u8 len = 0;
+
+ if (!db)
+ return;
+
+ len = db[0] & 0x1f;
+ /* Byte 3: Electro-Optical Transfer Functions */
+ connector->hdr_eotf = db[2] & 0x3F;
+
+ /* Byte 4: Static Metadata Descriptor Type 1 */
+ connector->hdr_metadata_type_one = (db[3] & BIT(0));
+
+ /* Byte 5: Desired Content Maximum Luminance */
+ if (drm_edid_is_luminance_value_present(len, MAXIMUM_LUMINANCE))
+ connector->hdr_max_luminance =
+ db[MAXIMUM_LUMINANCE];
+
+ /* Byte 6: Desired Content Max Frame-average Luminance */
+ if (drm_edid_is_luminance_value_present(len, FRAME_AVERAGE_LUMINANCE))
+ connector->hdr_avg_luminance =
+ db[FRAME_AVERAGE_LUMINANCE];
+
+ /* Byte 7: Desired Content Min Luminance */
+ if (drm_edid_is_luminance_value_present(len, MINIMUM_LUMINANCE))
+ connector->hdr_min_luminance =
+ db[MINIMUM_LUMINANCE];
+
+ connector->hdr_supported = true;
+
+ DRM_DEBUG_KMS("HDR electro-optical %d\n", connector->hdr_eotf);
+ DRM_DEBUG_KMS("metadata desc 1 %d\n", connector->hdr_metadata_type_one);
+ DRM_DEBUG_KMS("max luminance %d\n", connector->hdr_max_luminance);
+ DRM_DEBUG_KMS("avg luminance %d\n", connector->hdr_avg_luminance);
+ DRM_DEBUG_KMS("min luminance %d\n", connector->hdr_min_luminance);
+}
+/*
+ * drm_hdmi_extract_extended_blk_info - Parse the HDMI extended tag blocks
+ * @connector: connector corresponding to the HDMI sink
+ * @edid: handle to the EDID structure
+ * Parses the all extended tag blocks extract sink info for @connector.
+ */
+static void
+drm_hdmi_extract_extended_blk_info(struct drm_connector *connector,
+ const struct edid *edid)
+{
+ const u8 *cea = drm_find_cea_extension(edid);
+ const u8 *db = NULL;
+
+ if (cea && cea_revision(cea) >= 3) {
+ int i, start, end;
+
+ if (cea_db_offsets(cea, &start, &end))
+ return;
+
+ for_each_cea_db(cea, i, start, end) {
+ db = &cea[i];
+
+ if (cea_db_tag(db) == USE_EXTENDED_TAG) {
+ DRM_DEBUG_KMS("found extended tag block = %d\n",
+ db[1]);
+ switch (db[1]) {
+ case VIDEO_CAPABILITY_EXTENDED_DATA_BLOCK:
+ drm_extract_vcdb_info(connector, db);
+ break;
+ case VENDOR_SPECIFIC_VIDEO_DATA_BLOCK:
+ drm_extract_vsvdb_info(connector, db);
+ break;
+ case HDR_STATIC_METADATA_BLOCK:
+ drm_extract_hdr_db(connector, db);
+ break;
+ case COLORIMETRY_EXTENDED_DATA_BLOCK:
+ drm_extract_clrmetry_db(connector, db);
+ break;
+ default:
+ break;
+ }
+ }
+ }
+ }
+}
+
+static void
+parse_hdmi_hf_vsdb(struct drm_connector *connector, const u8 *db)
+{
+ u8 len = cea_db_payload_len(db);
+
+ if (len < 7)
+ return;
+
+ if (db[4] != 1)
+ return; /* invalid version */
+
+ connector->max_tmds_char = db[5] * 5;
+ connector->scdc_present = db[6] & (1 << 7);
+ connector->rr_capable = db[6] & (1 << 6);
+ connector->flags_3d = db[6] & 0x7;
+ connector->supports_scramble = connector->scdc_present &&
+ (db[6] & (1 << 3));
+
+ DRM_DEBUG_KMS(
+ "HDMI v2: max TMDS char %d, scdc %s, rr %s,3D flags 0x%x, scramble %s\n",
+ connector->max_tmds_char,
+ connector->scdc_present ? "available" : "not available",
+ connector->rr_capable ? "capable" : "not capable",
+ connector->flags_3d,
+ connector->supports_scramble ? "supported" : "not supported");
+}
+
+static void drm_parse_ycbcr420_deep_color_info(struct drm_connector *connector,
+ const u8 *db)
+{
+ u8 dc_mask;
+ struct drm_hdmi_info *hdmi = &connector->display_info.hdmi;
+
+ dc_mask = db[7] & DRM_EDID_YCBCR420_DC_MASK;
+ hdmi->y420_dc_modes = dc_mask;
+}
+
+static void drm_parse_hdmi_forum_vsdb(struct drm_connector *connector,
+ const u8 *hf_vsdb)
+{
+ struct drm_display_info *display = &connector->display_info;
+ struct drm_hdmi_info *hdmi = &display->hdmi;
+
+ display->has_hdmi_infoframe = true;
+
+ if (hf_vsdb[6] & 0x80) {
+ hdmi->scdc.supported = true;
+ if (hf_vsdb[6] & 0x40)
+ hdmi->scdc.read_request = true;
+ }
+
+ /*
+ * All HDMI 2.0 monitors must support scrambling at rates > 340 MHz.
+ * And as per the spec, three factors confirm this:
+ * * Availability of a HF-VSDB block in EDID (check)
+ * * Non zero Max_TMDS_Char_Rate filed in HF-VSDB (let's check)
+ * * SCDC support available (let's check)
+ * Lets check it out.
+ */
+
+ if (hf_vsdb[5]) {
+ /* max clock is 5000 KHz times block value */
+ u32 max_tmds_clock = hf_vsdb[5] * 5000;
+ struct drm_scdc *scdc = &hdmi->scdc;
+
+ if (max_tmds_clock > 340000) {
+ display->max_tmds_clock = max_tmds_clock;
+ DRM_DEBUG_KMS("HF-VSDB: max TMDS clock %d kHz\n",
+ display->max_tmds_clock);
+ }
+
+ if (scdc->supported) {
+ scdc->scrambling.supported = true;
+
+ /* Few sinks support scrambling for cloks < 340M */
+ if ((hf_vsdb[6] & 0x8))
+ scdc->scrambling.low_rates = true;
+ }
+ }
+
+ drm_parse_ycbcr420_deep_color_info(connector, hf_vsdb);
+ parse_hdmi_hf_vsdb(connector, hf_vsdb);
+}
+
static void
monitor_name(struct detailed_timing *t, void *data)
{
@@ -4089,6 +4384,10 @@ static void drm_edid_to_eld(struct drm_connector *connector, struct edid *edid)
/* HDMI Vendor-Specific Data Block */
if (cea_db_is_hdmi_vsdb(db))
drm_parse_hdmi_vsdb_audio(connector, db);
+ /* HDMI Forum Vendor-Specific Data Block */
+ else if (cea_db_is_hdmi_forum_vsdb(db))
+ drm_parse_hdmi_forum_vsdb(connector,
+ db);
break;
default:
break;
@@ -4402,62 +4701,6 @@ drm_default_rgb_quant_range(const struct drm_display_mode *mode)
}
EXPORT_SYMBOL(drm_default_rgb_quant_range);
-static void drm_parse_ycbcr420_deep_color_info(struct drm_connector *connector,
- const u8 *db)
-{
- u8 dc_mask;
- struct drm_hdmi_info *hdmi = &connector->display_info.hdmi;
-
- dc_mask = db[7] & DRM_EDID_YCBCR420_DC_MASK;
- hdmi->y420_dc_modes = dc_mask;
-}
-
-static void drm_parse_hdmi_forum_vsdb(struct drm_connector *connector,
- const u8 *hf_vsdb)
-{
- struct drm_display_info *display = &connector->display_info;
- struct drm_hdmi_info *hdmi = &display->hdmi;
-
- display->has_hdmi_infoframe = true;
-
- if (hf_vsdb[6] & 0x80) {
- hdmi->scdc.supported = true;
- if (hf_vsdb[6] & 0x40)
- hdmi->scdc.read_request = true;
- }
-
- /*
- * All HDMI 2.0 monitors must support scrambling at rates > 340 MHz.
- * And as per the spec, three factors confirm this:
- * * Availability of a HF-VSDB block in EDID (check)
- * * Non zero Max_TMDS_Char_Rate filed in HF-VSDB (let's check)
- * * SCDC support available (let's check)
- * Lets check it out.
- */
-
- if (hf_vsdb[5]) {
- /* max clock is 5000 KHz times block value */
- u32 max_tmds_clock = hf_vsdb[5] * 5000;
- struct drm_scdc *scdc = &hdmi->scdc;
-
- if (max_tmds_clock > 340000) {
- display->max_tmds_clock = max_tmds_clock;
- DRM_DEBUG_KMS("HF-VSDB: max TMDS clock %d kHz\n",
- display->max_tmds_clock);
- }
-
- if (scdc->supported) {
- scdc->scrambling.supported = true;
-
- /* Few sinks support scrambling for cloks < 340M */
- if ((hf_vsdb[6] & 0x8))
- scdc->scrambling.low_rates = true;
- }
- }
-
- drm_parse_ycbcr420_deep_color_info(connector, hf_vsdb);
-}
-
static void drm_parse_hdmi_deep_color_info(struct drm_connector *connector,
const u8 *hdmi)
{
@@ -4601,6 +4844,40 @@ drm_reset_display_info(struct drm_connector *connector)
info->non_desktop = 0;
}
+static void
+drm_hdmi_extract_vsdbs_info(struct drm_connector *connector,
+ const struct edid *edid)
+{
+ const u8 *cea = drm_find_cea_extension(edid);
+ const u8 *db = NULL;
+
+ if (cea && cea_revision(cea) >= 3) {
+ int i, start, end;
+
+ if (cea_db_offsets(cea, &start, &end))
+ return;
+
+ for_each_cea_db(cea, i, start, end) {
+ db = &cea[i];
+
+ if (cea_db_tag(db) == VENDOR_BLOCK) {
+ /* HDMI Vendor-Specific Data Block */
+ if (cea_db_is_hdmi_vsdb(db)) {
+ drm_parse_hdmi_vsdb_video(
+ connector, db);
+ drm_parse_hdmi_vsdb_audio(
+ connector, db);
+ }
+ /* HDMI Forum Vendor-Specific Data Block */
+ else if (cea_db_is_hdmi_forum_vsdb(db))
+ drm_parse_hdmi_forum_vsdb(connector,
+ db);
+ }
+ }
+ }
+}
+
+
u32 drm_add_display_info(struct drm_connector *connector, const struct edid *edid)
{
struct drm_display_info *info = &connector->display_info;
@@ -4638,6 +4915,11 @@ u32 drm_add_display_info(struct drm_connector *connector, const struct edid *edi
connector->name, info->bpc);
}
+ /* Extract audio and video latency fields for the sink */
+ drm_hdmi_extract_vsdbs_info(connector, edid);
+ /* Extract info from extended tag blocks */
+ drm_hdmi_extract_extended_blk_info(connector, edid);
+
/* Only defined for 1.4 with digital displays */
if (edid->revision < 4)
return quirks;
diff --git a/drivers/gpu/drm/drm_file.c b/drivers/gpu/drm/drm_file.c
index 334adda..b884194 100644
--- a/drivers/gpu/drm/drm_file.c
+++ b/drivers/gpu/drm/drm_file.c
@@ -46,6 +46,8 @@
/* from BKL pushdown */
DEFINE_MUTEX(drm_global_mutex);
+#define MAX_DRM_OPEN_COUNT 128
+
/**
* DOC: file operations
*
@@ -262,6 +264,18 @@ void drm_file_free(struct drm_file *file)
kfree(file);
}
+static void drm_close_helper(struct file *filp)
+{
+ struct drm_file *file_priv = filp->private_data;
+ struct drm_device *dev = file_priv->minor->dev;
+
+ mutex_lock(&dev->filelist_mutex);
+ list_del(&file_priv->lhead);
+ mutex_unlock(&dev->filelist_mutex);
+
+ drm_file_free(file_priv);
+}
+
static int drm_setup(struct drm_device * dev)
{
int ret;
@@ -310,6 +324,11 @@ int drm_open(struct inode *inode, struct file *filp)
if (!dev->open_count++)
need_setup = 1;
+ if (dev->open_count >= MAX_DRM_OPEN_COUNT) {
+ retcode = -EPERM;
+ goto err_undo;
+ }
+
/* share address_space across all char-devs of a single device */
filp->f_mapping = dev->anon_inode->i_mapping;
@@ -318,8 +337,10 @@ int drm_open(struct inode *inode, struct file *filp)
goto err_undo;
if (need_setup) {
retcode = drm_setup(dev);
- if (retcode)
+ if (retcode) {
+ drm_close_helper(filp);
goto err_undo;
+ }
}
return 0;
@@ -473,11 +494,7 @@ int drm_release(struct inode *inode, struct file *filp)
DRM_DEBUG("open_count = %d\n", dev->open_count);
- mutex_lock(&dev->filelist_mutex);
- list_del(&file_priv->lhead);
- mutex_unlock(&dev->filelist_mutex);
-
- drm_file_free(file_priv);
+ drm_close_helper(filp);
if (!--dev->open_count)
drm_lastclose(dev);
diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c
index b64a6ff..2fefca4 100644
--- a/drivers/gpu/drm/drm_framebuffer.c
+++ b/drivers/gpu/drm/drm_framebuffer.c
@@ -278,7 +278,8 @@ drm_internal_framebuffer_create(struct drm_device *dev,
struct drm_framebuffer *fb;
int ret;
- if (r->flags & ~(DRM_MODE_FB_INTERLACED | DRM_MODE_FB_MODIFIERS)) {
+ if (r->flags & ~(DRM_MODE_FB_INTERLACED | DRM_MODE_FB_MODIFIERS |
+ DRM_MODE_FB_SECURE)) {
DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags);
return ERR_PTR(-EINVAL);
}
diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index babd7eb..df27ead 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -656,9 +656,9 @@ static const struct drm_ioctl_desc drm_ioctls[] = {
DRM_IOCTL_DEF(DRM_IOCTL_MODE_RMFB, drm_mode_rmfb_ioctl, DRM_UNLOCKED),
DRM_IOCTL_DEF(DRM_IOCTL_MODE_PAGE_FLIP, drm_mode_page_flip_ioctl, DRM_MASTER|DRM_UNLOCKED),
DRM_IOCTL_DEF(DRM_IOCTL_MODE_DIRTYFB, drm_mode_dirtyfb_ioctl, DRM_MASTER|DRM_UNLOCKED),
- DRM_IOCTL_DEF(DRM_IOCTL_MODE_CREATE_DUMB, drm_mode_create_dumb_ioctl, DRM_UNLOCKED),
- DRM_IOCTL_DEF(DRM_IOCTL_MODE_MAP_DUMB, drm_mode_mmap_dumb_ioctl, DRM_UNLOCKED),
- DRM_IOCTL_DEF(DRM_IOCTL_MODE_DESTROY_DUMB, drm_mode_destroy_dumb_ioctl, DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_CREATE_DUMB, drm_mode_create_dumb_ioctl, DRM_UNLOCKED|DRM_RENDER_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_MAP_DUMB, drm_mode_mmap_dumb_ioctl, DRM_UNLOCKED|DRM_RENDER_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_DESTROY_DUMB, drm_mode_destroy_dumb_ioctl, DRM_UNLOCKED|DRM_RENDER_ALLOW),
DRM_IOCTL_DEF(DRM_IOCTL_MODE_OBJ_GETPROPERTIES, drm_mode_obj_get_properties_ioctl, DRM_UNLOCKED),
DRM_IOCTL_DEF(DRM_IOCTL_MODE_OBJ_SETPROPERTY, drm_mode_obj_set_property_ioctl, DRM_MASTER|DRM_UNLOCKED),
DRM_IOCTL_DEF(DRM_IOCTL_MODE_CURSOR2, drm_mode_cursor2_ioctl, DRM_MASTER|DRM_UNLOCKED),
diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c
index 7ed8e51..28a7c3c 100644
--- a/drivers/gpu/drm/drm_mipi_dsi.c
+++ b/drivers/gpu/drm/drm_mipi_dsi.c
@@ -360,6 +360,7 @@ static ssize_t mipi_dsi_device_transfer(struct mipi_dsi_device *dsi,
if (dsi->mode_flags & MIPI_DSI_MODE_LPM)
msg->flags |= MIPI_DSI_MSG_USE_LPM;
+ msg->flags |= MIPI_DSI_MSG_LASTCOMMAND;
return ops->transfer(dsi->host, msg);
}
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index a3104d7..7550435 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -1753,6 +1753,7 @@ int drm_mode_convert_umode(struct drm_device *dev,
return 0;
}
+EXPORT_SYMBOL_GPL(drm_mode_convert_umode);
/**
* drm_mode_is_420_only - if a given videomode can be only supported in YCBCR420
diff --git a/drivers/gpu/drm/drm_panel.c b/drivers/gpu/drm/drm_panel.c
index 1d9a9d2..d37b83f 100644
--- a/drivers/gpu/drm/drm_panel.c
+++ b/drivers/gpu/drm/drm_panel.c
@@ -48,6 +48,7 @@ static LIST_HEAD(panel_list);
void drm_panel_init(struct drm_panel *panel)
{
INIT_LIST_HEAD(&panel->list);
+ BLOCKING_INIT_NOTIFIER_HEAD(&panel->nh);
}
EXPORT_SYMBOL(drm_panel_init);
@@ -169,6 +170,27 @@ struct drm_panel *of_drm_find_panel(const struct device_node *np)
EXPORT_SYMBOL(of_drm_find_panel);
#endif
+int drm_panel_notifier_register(struct drm_panel *panel,
+ struct notifier_block *nb)
+{
+ return blocking_notifier_chain_register(&panel->nh, nb);
+}
+EXPORT_SYMBOL_GPL(drm_panel_notifier_register);
+
+int drm_panel_notifier_unregister(struct drm_panel *panel,
+ struct notifier_block *nb)
+{
+ return blocking_notifier_chain_unregister(&panel->nh, nb);
+}
+EXPORT_SYMBOL_GPL(drm_panel_notifier_unregister);
+
+int drm_panel_notifier_call_chain(struct drm_panel *panel,
+ unsigned long val, void *v)
+{
+ return blocking_notifier_call_chain(&panel->nh, val, v);
+}
+EXPORT_SYMBOL_GPL(drm_panel_notifier_call_chain);
+
MODULE_AUTHOR("Thierry Reding <treding@nvidia.com>");
MODULE_DESCRIPTION("DRM panel infrastructure");
MODULE_LICENSE("GPL and additional rights");
diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c
index 186db2e..0183b85 100644
--- a/drivers/gpu/drm/drm_prime.c
+++ b/drivers/gpu/drm/drm_prime.c
@@ -434,6 +434,28 @@ void drm_gem_dmabuf_vunmap(struct dma_buf *dma_buf, void *vaddr)
EXPORT_SYMBOL(drm_gem_dmabuf_vunmap);
/**
+ * drm_gem_dmabuf_get_uuid - dma_buf get_uuid implementation for GEM
+ * @dma_buf: buffer to query
+ * @uuid: uuid outparam
+ *
+ * Queries the buffer's virtio UUID. This can be used as the
+ * &dma_buf_ops.get_uuid callback. Calls into &drm_driver.gem_prime_get_uuid.
+ *
+ * Returns 0 on success or a negative error code on failure.
+ */
+int drm_gem_dmabuf_get_uuid(struct dma_buf *dma_buf, uuid_t *uuid)
+{
+ struct drm_gem_object *obj = dma_buf->priv;
+ struct drm_device *dev = obj->dev;
+
+ if (!dev->driver->gem_prime_get_uuid)
+ return -ENODEV;
+
+ return dev->driver->gem_prime_get_uuid(obj, uuid);
+}
+EXPORT_SYMBOL(drm_gem_dmabuf_get_uuid);
+
+/**
* drm_gem_dmabuf_kmap - map implementation for GEM
* @dma_buf: buffer to be mapped
* @page_num: page number within the buffer
@@ -494,6 +516,7 @@ static const struct dma_buf_ops drm_gem_prime_dmabuf_ops = {
.mmap = drm_gem_dmabuf_mmap,
.vmap = drm_gem_dmabuf_vmap,
.vunmap = drm_gem_dmabuf_vunmap,
+ .get_uuid = drm_gem_dmabuf_get_uuid,
};
/**
@@ -679,6 +702,52 @@ int drm_gem_prime_handle_to_fd(struct drm_device *dev,
EXPORT_SYMBOL(drm_gem_prime_handle_to_fd);
/**
+ * drm_gem_prime_mmap - PRIME mmap function for GEM drivers
+ * @obj: GEM object
+ * @vma: Virtual address range
+ *
+ * This function sets up a userspace mapping for PRIME exported buffers using
+ * the same codepath that is used for regular GEM buffer mapping on the DRM fd.
+ * The fake GEM offset is added to vma->vm_pgoff and &drm_driver->fops->mmap is
+ * called to set up the mapping.
+ *
+ * Drivers can use this as their &drm_driver.gem_prime_mmap callback.
+ */
+int drm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
+{
+ struct drm_file *priv;
+ struct file *fil;
+ int ret;
+
+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ fil = kzalloc(sizeof(*fil), GFP_KERNEL);
+ if (!priv || !fil) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ /* Used by drm_gem_mmap() to lookup the GEM object */
+ priv->minor = obj->dev->primary;
+ fil->private_data = priv;
+
+ ret = drm_vma_node_allow(&obj->vma_node, priv);
+ if (ret)
+ goto out;
+
+ vma->vm_pgoff += drm_vma_node_start(&obj->vma_node);
+
+ ret = obj->dev->driver->fops->mmap(fil, vma);
+
+ drm_vma_node_revoke(&obj->vma_node, priv);
+out:
+ kfree(priv);
+ kfree(fil);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_gem_prime_mmap);
+
+/**
* drm_gem_prime_import_dev - core implementation of the import callback
* @dev: drm_device to import into
* @dma_buf: dma-buf object to import
diff --git a/drivers/gpu/drm/drm_property.c b/drivers/gpu/drm/drm_property.c
index 69dfed5..6532a9d 100644
--- a/drivers/gpu/drm/drm_property.c
+++ b/drivers/gpu/drm/drm_property.c
@@ -26,6 +26,9 @@
#include "drm_crtc_internal.h"
+#define MAX_BLOB_PROP_SIZE (PAGE_SIZE * 30)
+#define MAX_BLOB_PROP_COUNT 250
+
/**
* DOC: overview
*
@@ -556,7 +559,8 @@ drm_property_create_blob(struct drm_device *dev, size_t length,
struct drm_property_blob *blob;
int ret;
- if (!length || length > INT_MAX - sizeof(struct drm_property_blob))
+ if (!length || length > MAX_BLOB_PROP_SIZE -
+ sizeof(struct drm_property_blob))
return ERR_PTR(-EINVAL);
blob = kvzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
@@ -782,12 +786,21 @@ int drm_mode_createblob_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv)
{
struct drm_mode_create_blob *out_resp = data;
- struct drm_property_blob *blob;
+ struct drm_property_blob *blob, *bt;
int ret = 0;
+ u32 count = 0;
if (!drm_core_check_feature(dev, DRIVER_MODESET))
return -EINVAL;
+ mutex_lock(&dev->mode_config.blob_lock);
+ list_for_each_entry(bt, &file_priv->blobs, head_file)
+ count++;
+ mutex_unlock(&dev->mode_config.blob_lock);
+
+ if (count >= MAX_BLOB_PROP_COUNT)
+ return -EOPNOTSUPP;
+
blob = drm_property_create_blob(dev, out_resp->length, NULL);
if (IS_ERR(blob))
return PTR_ERR(blob);
diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c
index 8a19cfc..c7d52c6 100644
--- a/drivers/gpu/drm/i915/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/intel_dp_mst.c
@@ -77,7 +77,7 @@ static bool intel_dp_mst_compute_config(struct intel_encoder *encoder,
pipe_config->pbn = mst_pbn;
/* Zombie connectors can't have VCPI slots */
- if (!drm_connector_is_unregistered(connector)) {
+ if (READ_ONCE(connector->registered)) {
slots = drm_dp_atomic_find_vcpi_slots(state,
&intel_dp->mst_mgr,
port,
@@ -317,7 +317,7 @@ static int intel_dp_mst_get_ddc_modes(struct drm_connector *connector)
struct edid *edid;
int ret;
- if (drm_connector_is_unregistered(connector))
+ if (!READ_ONCE(connector->registered))
return intel_connector_update_modes(connector, NULL);
edid = drm_dp_mst_get_edid(connector, &intel_dp->mst_mgr, intel_connector->port);
@@ -333,7 +333,7 @@ intel_dp_mst_detect(struct drm_connector *connector, bool force)
struct intel_connector *intel_connector = to_intel_connector(connector);
struct intel_dp *intel_dp = intel_connector->mst_port;
- if (drm_connector_is_unregistered(connector))
+ if (!READ_ONCE(connector->registered))
return connector_status_disconnected;
return drm_dp_mst_detect_port(connector, &intel_dp->mst_mgr,
intel_connector->port);
@@ -376,7 +376,7 @@ intel_dp_mst_mode_valid(struct drm_connector *connector,
int bpp = 24; /* MST uses fixed bpp */
int max_rate, mode_rate, max_lanes, max_link_clock;
- if (drm_connector_is_unregistered(connector))
+ if (!READ_ONCE(connector->registered))
return MODE_ERROR;
if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
diff --git a/drivers/gpu/drm/msm/Kconfig b/drivers/gpu/drm/msm/Kconfig
index 843a9d4..db7a1d5 100644
--- a/drivers/gpu/drm/msm/Kconfig
+++ b/drivers/gpu/drm/msm/Kconfig
@@ -12,11 +12,11 @@
select SHMEM
select TMPFS
select QCOM_SCM
+ select QCOM_COMMAND_DB if ARCH_QCOM
select WANT_DEV_COREDUMP
select SND_SOC_HDMI_CODEC if SND_SOC
select SYNC_FILE
select PM_OPP
- default y
help
DRM/KMS driver for MSM/snapdragon.
diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c
index 27d8e7d..8572caf 100644
--- a/drivers/gpu/drm/radeon/radeon_gem.c
+++ b/drivers/gpu/drm/radeon/radeon_gem.c
@@ -291,6 +291,8 @@ int radeon_gem_userptr_ioctl(struct drm_device *dev, void *data,
uint32_t handle;
int r;
+ args->addr = untagged_addr(args->addr);
+
if (offset_in_page(args->addr | args->size))
return -EINVAL;
diff --git a/drivers/gpu/drm/virtio/Makefile b/drivers/gpu/drm/virtio/Makefile
index f29deec..42949a1 100644
--- a/drivers/gpu/drm/virtio/Makefile
+++ b/drivers/gpu/drm/virtio/Makefile
@@ -3,9 +3,9 @@
# Makefile for the drm device driver. This driver provides support for the
# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
-virtio-gpu-y := virtgpu_drv.o virtgpu_kms.o virtgpu_drm_bus.o virtgpu_gem.o \
+virtio-gpu-y := virtgpu_drv.o virtgpu_kms.o virtgpu_gem.o \
virtgpu_fb.o virtgpu_display.o virtgpu_vq.o virtgpu_ttm.o \
virtgpu_fence.o virtgpu_object.o virtgpu_debugfs.o virtgpu_plane.o \
- virtgpu_ioctl.o virtgpu_prime.o
+ virtgpu_ioctl.o virtgpu_prime.o virtgpu_trace_points.o
obj-$(CONFIG_DRM_VIRTIO_GPU) += virtio-gpu.o
diff --git a/drivers/gpu/drm/virtio/virtgpu_debugfs.c b/drivers/gpu/drm/virtio/virtgpu_debugfs.c
index 73dc990..ed0fcda 100644
--- a/drivers/gpu/drm/virtio/virtgpu_debugfs.c
+++ b/drivers/gpu/drm/virtio/virtgpu_debugfs.c
@@ -28,6 +28,30 @@
#include "virtgpu_drv.h"
+static void virtio_add_bool(struct seq_file *m, const char *name,
+ bool value)
+{
+ seq_printf(m, "%-16s : %s\n", name, value ? "yes" : "no");
+}
+
+static void virtio_add_int(struct seq_file *m, const char *name,
+ int value)
+{
+ seq_printf(m, "%-16s : %d\n", name, value);
+}
+
+static int virtio_gpu_features(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct virtio_gpu_device *vgdev = node->minor->dev->dev_private;
+
+ virtio_add_bool(m, "virgl", vgdev->has_virgl_3d);
+ virtio_add_bool(m, "edid", vgdev->has_edid);
+ virtio_add_int(m, "cap sets", vgdev->num_capsets);
+ virtio_add_int(m, "scanouts", vgdev->num_scanouts);
+ return 0;
+}
+
static int
virtio_gpu_debugfs_irq_info(struct seq_file *m, void *data)
{
@@ -41,7 +65,8 @@ virtio_gpu_debugfs_irq_info(struct seq_file *m, void *data)
}
static struct drm_info_list virtio_gpu_debugfs_list[] = {
- { "irq_fence", virtio_gpu_debugfs_irq_info, 0, NULL },
+ { "virtio-gpu-features", virtio_gpu_features },
+ { "virtio-gpu-irq-fence", virtio_gpu_debugfs_irq_info, 0, NULL },
};
#define VIRTIO_GPU_DEBUGFS_ENTRIES ARRAY_SIZE(virtio_gpu_debugfs_list)
diff --git a/drivers/gpu/drm/virtio/virtgpu_display.c b/drivers/gpu/drm/virtio/virtgpu_display.c
index 25503b9..9bef800 100644
--- a/drivers/gpu/drm/virtio/virtgpu_display.c
+++ b/drivers/gpu/drm/virtio/virtgpu_display.c
@@ -75,12 +75,9 @@ virtio_gpu_framebuffer_init(struct drm_device *dev,
struct drm_gem_object *obj)
{
int ret;
- struct virtio_gpu_object *bo;
vgfb->base.obj[0] = obj;
- bo = gem_to_virtio_gpu_obj(obj);
-
drm_helper_mode_fill_fb_struct(dev, &vgfb->base, mode_cmd);
ret = drm_framebuffer_init(dev, &vgfb->base, &virtio_gpu_fb_funcs);
@@ -109,6 +106,9 @@ static void virtio_gpu_crtc_mode_set_nofb(struct drm_crtc *crtc)
static void virtio_gpu_crtc_atomic_enable(struct drm_crtc *crtc,
struct drm_crtc_state *old_state)
{
+ struct virtio_gpu_output *output = drm_crtc_to_virtio_gpu_output(crtc);
+
+ output->enabled = true;
}
static void virtio_gpu_crtc_atomic_disable(struct drm_crtc *crtc,
@@ -119,6 +119,7 @@ static void virtio_gpu_crtc_atomic_disable(struct drm_crtc *crtc,
struct virtio_gpu_output *output = drm_crtc_to_virtio_gpu_output(crtc);
virtio_gpu_cmd_set_scanout(vgdev, output->index, 0, 0, 0, 0, 0);
+ output->enabled = false;
}
static int virtio_gpu_crtc_atomic_check(struct drm_crtc *crtc,
@@ -168,6 +169,12 @@ static int virtio_gpu_conn_get_modes(struct drm_connector *connector)
struct drm_display_mode *mode = NULL;
int count, width, height;
+ if (output->edid) {
+ count = drm_add_edid_modes(connector, output->edid);
+ if (count)
+ return count;
+ }
+
width = le32_to_cpu(output->info.r.width);
height = le32_to_cpu(output->info.r.height);
count = drm_add_modes_noedid(connector, XRES_MAX, YRES_MAX);
@@ -236,12 +243,8 @@ static enum drm_connector_status virtio_gpu_conn_detect(
static void virtio_gpu_conn_destroy(struct drm_connector *connector)
{
- struct virtio_gpu_output *virtio_gpu_output =
- drm_connector_to_virtio_gpu_output(connector);
-
drm_connector_unregister(connector);
drm_connector_cleanup(connector);
- kfree(virtio_gpu_output);
}
static const struct drm_connector_funcs virtio_gpu_connector_funcs = {
@@ -286,6 +289,8 @@ static int vgdev_output_init(struct virtio_gpu_device *vgdev, int index)
drm_connector_init(dev, connector, &virtio_gpu_connector_funcs,
DRM_MODE_CONNECTOR_VIRTUAL);
drm_connector_helper_add(connector, &virtio_gpu_conn_helper_funcs);
+ if (vgdev->has_edid)
+ drm_connector_attach_edid_property(connector);
drm_encoder_init(dev, encoder, &virtio_gpu_enc_funcs,
DRM_MODE_ENCODER_VIRTUAL, NULL);
@@ -349,7 +354,7 @@ static const struct drm_mode_config_funcs virtio_gpu_mode_funcs = {
.atomic_commit = drm_atomic_helper_commit,
};
-int virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev)
+void virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev)
{
int i;
@@ -367,11 +372,14 @@ int virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev)
vgdev_output_init(vgdev, i);
drm_mode_config_reset(vgdev->ddev);
- return 0;
}
void virtio_gpu_modeset_fini(struct virtio_gpu_device *vgdev)
{
- virtio_gpu_fbdev_fini(vgdev);
+ int i;
+
+ for (i = 0 ; i < vgdev->num_scanouts; ++i)
+ kfree(vgdev->outputs[i].edid);
+ drm_atomic_helper_shutdown(vgdev->ddev);
drm_mode_config_cleanup(vgdev->ddev);
}
diff --git a/drivers/gpu/drm/virtio/virtgpu_drm_bus.c b/drivers/gpu/drm/virtio/virtgpu_drm_bus.c
deleted file mode 100644
index 7df8d0c..0000000
--- a/drivers/gpu/drm/virtio/virtgpu_drm_bus.c
+++ /dev/null
@@ -1,90 +0,0 @@
-/*
- * Copyright (C) 2015 Red Hat, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial
- * portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
- * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#include <linux/pci.h>
-#include <drm/drm_fb_helper.h>
-
-#include "virtgpu_drv.h"
-
-static void virtio_pci_kick_out_firmware_fb(struct pci_dev *pci_dev)
-{
- struct apertures_struct *ap;
- bool primary;
-
- ap = alloc_apertures(1);
- if (!ap)
- return;
-
- ap->ranges[0].base = pci_resource_start(pci_dev, 0);
- ap->ranges[0].size = pci_resource_len(pci_dev, 0);
-
- primary = pci_dev->resource[PCI_ROM_RESOURCE].flags
- & IORESOURCE_ROM_SHADOW;
-
- drm_fb_helper_remove_conflicting_framebuffers(ap, "virtiodrmfb", primary);
-
- kfree(ap);
-}
-
-int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev)
-{
- struct drm_device *dev;
- int ret;
-
- dev = drm_dev_alloc(driver, &vdev->dev);
- if (IS_ERR(dev))
- return PTR_ERR(dev);
- vdev->priv = dev;
-
- if (strcmp(vdev->dev.parent->bus->name, "pci") == 0) {
- struct pci_dev *pdev = to_pci_dev(vdev->dev.parent);
- const char *pname = dev_name(&pdev->dev);
- bool vga = (pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA;
- char unique[20];
-
- DRM_INFO("pci: %s detected at %s\n",
- vga ? "virtio-vga" : "virtio-gpu-pci",
- pname);
- dev->pdev = pdev;
- if (vga)
- virtio_pci_kick_out_firmware_fb(pdev);
-
- snprintf(unique, sizeof(unique), "pci:%s", pname);
- ret = drm_dev_set_unique(dev, unique);
- if (ret)
- goto err_free;
-
- }
-
- ret = drm_dev_register(dev, 0);
- if (ret)
- goto err_free;
-
- return 0;
-
-err_free:
- drm_dev_unref(dev);
- return ret;
-}
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.c b/drivers/gpu/drm/virtio/virtgpu_drv.c
index d9287c1..541fa03a0 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drv.c
+++ b/drivers/gpu/drm/virtio/virtgpu_drv.c
@@ -40,21 +40,119 @@ static int virtio_gpu_modeset = -1;
MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
module_param_named(modeset, virtio_gpu_modeset, int, 0400);
+static void virtio_pci_kick_out_firmware_fb(struct pci_dev *pci_dev)
+{
+ struct apertures_struct *ap;
+ bool primary;
+
+ ap = alloc_apertures(1);
+ if (!ap)
+ return;
+
+ ap->ranges[0].base = pci_resource_start(pci_dev, 0);
+ ap->ranges[0].size = pci_resource_len(pci_dev, 0);
+
+ primary = pci_dev->resource[PCI_ROM_RESOURCE].flags
+ & IORESOURCE_ROM_SHADOW;
+
+ drm_fb_helper_remove_conflicting_framebuffers(ap, "virtiodrmfb", primary);
+
+ kfree(ap);
+}
+
+static int virtio_gpu_pci_quirk(struct drm_device *dev, struct virtio_device *vdev)
+{
+ struct pci_dev *pdev = to_pci_dev(vdev->dev.parent);
+ const char *pname = dev_name(&pdev->dev);
+ bool vga = (pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA;
+ char unique[20];
+
+ DRM_INFO("pci: %s detected at %s\n",
+ vga ? "virtio-vga" : "virtio-gpu-pci",
+ pname);
+ dev->pdev = pdev;
+ if (vga)
+ virtio_pci_kick_out_firmware_fb(pdev);
+
+ /*
+ * Normally the drm_dev_set_unique() call is done by core DRM.
+ * The following comment covers, why virtio cannot rely on it.
+ *
+ * Unlike the other virtual GPU drivers, virtio abstracts the
+ * underlying bus type by using struct virtio_device.
+ *
+ * Hence the dev_is_pci() check, used in core DRM, will fail
+ * and the unique returned will be the virtio_device "virtio0",
+ * while a "pci:..." one is required.
+ *
+ * A few other ideas were considered:
+ * - Extend the dev_is_pci() check [in drm_set_busid] to
+ * consider virtio.
+ * Seems like a bigger hack than what we have already.
+ *
+ * - Point drm_device::dev to the parent of the virtio_device
+ * Semantic changes:
+ * * Using the wrong device for i2c, framebuffer_alloc and
+ * prime import.
+ * Visual changes:
+ * * Helpers such as DRM_DEV_ERROR, dev_info, drm_printer,
+ * will print the wrong information.
+ *
+ * We could address the latter issues, by introducing
+ * drm_device::bus_dev, ... which would be used solely for this.
+ *
+ * So for the moment keep things as-is, with a bulky comment
+ * for the next person who feels like removing this
+ * drm_dev_set_unique() quirk.
+ */
+ snprintf(unique, sizeof(unique), "pci:%s", pname);
+ return drm_dev_set_unique(dev, unique);
+}
+
static int virtio_gpu_probe(struct virtio_device *vdev)
{
+ struct drm_device *dev;
+ int ret;
+
if (vgacon_text_force() && virtio_gpu_modeset == -1)
return -EINVAL;
if (virtio_gpu_modeset == 0)
return -EINVAL;
- return drm_virtio_init(&driver, vdev);
+ dev = drm_dev_alloc(&driver, &vdev->dev);
+ if (IS_ERR(dev))
+ return PTR_ERR(dev);
+ vdev->priv = dev;
+
+ if (!strcmp(vdev->dev.parent->bus->name, "pci")) {
+ ret = virtio_gpu_pci_quirk(dev, vdev);
+ if (ret)
+ goto err_free;
+ }
+
+ ret = virtio_gpu_init(dev);
+ if (ret)
+ goto err_free;
+
+ ret = drm_dev_register(dev, 0);
+ if (ret)
+ goto err_free;
+
+ drm_fbdev_generic_setup(vdev->priv, 32);
+ return 0;
+
+err_free:
+ drm_dev_put(dev);
+ return ret;
}
static void virtio_gpu_remove(struct virtio_device *vdev)
{
struct drm_device *dev = vdev->priv;
+ drm_dev_unregister(dev);
+ virtio_gpu_deinit(dev);
drm_put_dev(dev);
}
@@ -80,6 +178,7 @@ static unsigned int features[] = {
*/
VIRTIO_GPU_F_VIRGL,
#endif
+ VIRTIO_GPU_F_EDID,
};
static struct virtio_driver virtio_gpu_driver = {
.feature_table = features,
@@ -115,8 +214,6 @@ static const struct file_operations virtio_gpu_driver_fops = {
static struct drm_driver driver = {
.driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME | DRIVER_RENDER | DRIVER_ATOMIC,
- .load = virtio_gpu_driver_load,
- .unload = virtio_gpu_driver_unload,
.open = virtio_gpu_driver_open,
.postclose = virtio_gpu_driver_postclose,
@@ -130,8 +227,6 @@ static struct drm_driver driver = {
.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
.gem_prime_export = drm_gem_prime_export,
.gem_prime_import = drm_gem_prime_import,
- .gem_prime_pin = virtgpu_gem_prime_pin,
- .gem_prime_unpin = virtgpu_gem_prime_unpin,
.gem_prime_get_sg_table = virtgpu_gem_prime_get_sg_table,
.gem_prime_import_sg_table = virtgpu_gem_prime_import_sg_table,
.gem_prime_vmap = virtgpu_gem_prime_vmap,
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h
index 65605e2..d8e98cd 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drv.h
+++ b/drivers/gpu/drm/virtio/virtgpu_drv.h
@@ -36,6 +36,7 @@
#include <drm/drm_atomic.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_encoder.h>
+#include <drm/drm_fb_helper.h>
#include <drm/ttm/ttm_bo_api.h>
#include <drm/ttm/ttm_bo_driver.h>
#include <drm/ttm/ttm_placement.h>
@@ -46,23 +47,39 @@
#define DRIVER_DATE "0"
#define DRIVER_MAJOR 0
-#define DRIVER_MINOR 0
-#define DRIVER_PATCHLEVEL 1
+#define DRIVER_MINOR 1
+#define DRIVER_PATCHLEVEL 0
-/* virtgpu_drm_bus.c */
-int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev);
+struct virtio_gpu_object_params {
+ uint32_t format;
+ uint32_t width;
+ uint32_t height;
+ unsigned long size;
+ bool dumb;
+ /* 3d */
+ bool virgl;
+ uint32_t target;
+ uint32_t bind;
+ uint32_t depth;
+ uint32_t array_size;
+ uint32_t last_level;
+ uint32_t nr_samples;
+ uint32_t flags;
+};
struct virtio_gpu_object {
struct drm_gem_object gem_base;
uint32_t hw_res_handle;
struct sg_table *pages;
+ uint32_t mapped;
void *vmap;
bool dumb;
struct ttm_place placement_code;
struct ttm_placement placement;
struct ttm_buffer_object tbo;
struct ttm_bo_kmap_obj kmap;
+ bool created;
};
#define gem_to_virtio_gpu_obj(gobj) \
container_of((gobj), struct virtio_gpu_object, gem_base)
@@ -85,7 +102,6 @@ struct virtio_gpu_fence {
struct dma_fence f;
struct virtio_gpu_fence_driver *drv;
struct list_head node;
- uint64_t seq;
};
#define to_virtio_fence(x) \
container_of(x, struct virtio_gpu_fence, f)
@@ -112,8 +128,10 @@ struct virtio_gpu_output {
struct drm_encoder enc;
struct virtio_gpu_display_one info;
struct virtio_gpu_update_cursor cursor;
+ struct edid *edid;
int cur_x;
int cur_y;
+ bool enabled;
};
#define drm_crtc_to_virtio_gpu_output(x) \
container_of(x, struct virtio_gpu_output, crtc)
@@ -127,6 +145,7 @@ struct virtio_gpu_framebuffer {
int x1, y1, x2, y2; /* dirty rect */
spinlock_t dirty_lock;
uint32_t hw_res_handle;
+ struct virtio_gpu_fence *fence;
};
#define to_virtio_gpu_framebuffer(x) \
container_of(x, struct virtio_gpu_framebuffer, base)
@@ -138,8 +157,6 @@ struct virtio_gpu_mman {
struct ttm_bo_device bdev;
};
-struct virtio_gpu_fbdev;
-
struct virtio_gpu_queue {
struct virtqueue *vq;
spinlock_t qlock;
@@ -170,8 +187,6 @@ struct virtio_gpu_device {
struct virtio_gpu_mman mman;
- /* pointer to fbdev info structure */
- struct virtio_gpu_fbdev *vgfbdev;
struct virtio_gpu_output outputs[VIRTIO_GPU_MAX_SCANOUTS];
uint32_t num_scanouts;
@@ -180,8 +195,7 @@ struct virtio_gpu_device {
struct kmem_cache *vbufs;
bool vqs_ready;
- struct idr resource_idr;
- spinlock_t resource_idr_lock;
+ struct ida resource_ida;
wait_queue_head_t resp_wq;
/* current display info */
@@ -190,10 +204,10 @@ struct virtio_gpu_device {
struct virtio_gpu_fence_driver fence_drv;
- struct idr ctx_id_idr;
- spinlock_t ctx_id_idr_lock;
+ struct ida ctx_id_ida;
bool has_virgl_3d;
+ bool has_edid;
struct work_struct config_changed_work;
@@ -209,10 +223,13 @@ struct virtio_gpu_fpriv {
/* virtio_ioctl.c */
#define DRM_VIRTIO_NUM_IOCTLS 10
extern struct drm_ioctl_desc virtio_gpu_ioctls[DRM_VIRTIO_NUM_IOCTLS];
+int virtio_gpu_object_list_validate(struct ww_acquire_ctx *ticket,
+ struct list_head *head);
+void virtio_gpu_unref_list(struct list_head *head);
/* virtio_kms.c */
-int virtio_gpu_driver_load(struct drm_device *dev, unsigned long flags);
-void virtio_gpu_driver_unload(struct drm_device *dev);
+int virtio_gpu_init(struct drm_device *dev);
+void virtio_gpu_deinit(struct drm_device *dev);
int virtio_gpu_driver_open(struct drm_device *dev, struct drm_file *file);
void virtio_gpu_driver_postclose(struct drm_device *dev, struct drm_file *file);
@@ -222,16 +239,17 @@ int virtio_gpu_gem_init(struct virtio_gpu_device *vgdev);
void virtio_gpu_gem_fini(struct virtio_gpu_device *vgdev);
int virtio_gpu_gem_create(struct drm_file *file,
struct drm_device *dev,
- uint64_t size,
+ struct virtio_gpu_object_params *params,
struct drm_gem_object **obj_p,
uint32_t *handle_p);
int virtio_gpu_gem_object_open(struct drm_gem_object *obj,
struct drm_file *file);
void virtio_gpu_gem_object_close(struct drm_gem_object *obj,
struct drm_file *file);
-struct virtio_gpu_object *virtio_gpu_alloc_object(struct drm_device *dev,
- size_t size, bool kernel,
- bool pinned);
+struct virtio_gpu_object*
+virtio_gpu_alloc_object(struct drm_device *dev,
+ struct virtio_gpu_object_params *params,
+ struct virtio_gpu_fence *fence);
int virtio_gpu_mode_dumb_create(struct drm_file *file_priv,
struct drm_device *dev,
struct drm_mode_create_dumb *args);
@@ -240,30 +258,24 @@ int virtio_gpu_mode_dumb_mmap(struct drm_file *file_priv,
uint32_t handle, uint64_t *offset_p);
/* virtio_fb */
-#define VIRTIO_GPUFB_CONN_LIMIT 1
-int virtio_gpu_fbdev_init(struct virtio_gpu_device *vgdev);
-void virtio_gpu_fbdev_fini(struct virtio_gpu_device *vgdev);
int virtio_gpu_surface_dirty(struct virtio_gpu_framebuffer *qfb,
struct drm_clip_rect *clips,
unsigned int num_clips);
/* virtio vg */
int virtio_gpu_alloc_vbufs(struct virtio_gpu_device *vgdev);
void virtio_gpu_free_vbufs(struct virtio_gpu_device *vgdev);
-void virtio_gpu_resource_id_get(struct virtio_gpu_device *vgdev,
- uint32_t *resid);
-void virtio_gpu_resource_id_put(struct virtio_gpu_device *vgdev, uint32_t id);
void virtio_gpu_cmd_create_resource(struct virtio_gpu_device *vgdev,
- uint32_t resource_id,
- uint32_t format,
- uint32_t width,
- uint32_t height);
+ struct virtio_gpu_object *bo,
+ struct virtio_gpu_object_params *params,
+ struct virtio_gpu_fence *fence);
void virtio_gpu_cmd_unref_resource(struct virtio_gpu_device *vgdev,
uint32_t resource_id);
void virtio_gpu_cmd_transfer_to_host_2d(struct virtio_gpu_device *vgdev,
- uint32_t resource_id, uint64_t offset,
+ struct virtio_gpu_object *bo,
+ uint64_t offset,
__le32 width, __le32 height,
__le32 x, __le32 y,
- struct virtio_gpu_fence **fence);
+ struct virtio_gpu_fence *fence);
void virtio_gpu_cmd_resource_flush(struct virtio_gpu_device *vgdev,
uint32_t resource_id,
uint32_t x, uint32_t y,
@@ -274,19 +286,19 @@ void virtio_gpu_cmd_set_scanout(struct virtio_gpu_device *vgdev,
uint32_t x, uint32_t y);
int virtio_gpu_object_attach(struct virtio_gpu_device *vgdev,
struct virtio_gpu_object *obj,
- uint32_t resource_id,
- struct virtio_gpu_fence **fence);
+ struct virtio_gpu_fence *fence);
+void virtio_gpu_object_detach(struct virtio_gpu_device *vgdev,
+ struct virtio_gpu_object *obj);
int virtio_gpu_attach_status_page(struct virtio_gpu_device *vgdev);
int virtio_gpu_detach_status_page(struct virtio_gpu_device *vgdev);
void virtio_gpu_cursor_ping(struct virtio_gpu_device *vgdev,
struct virtio_gpu_output *output);
int virtio_gpu_cmd_get_display_info(struct virtio_gpu_device *vgdev);
-void virtio_gpu_cmd_resource_inval_backing(struct virtio_gpu_device *vgdev,
- uint32_t resource_id);
int virtio_gpu_cmd_get_capset_info(struct virtio_gpu_device *vgdev, int idx);
int virtio_gpu_cmd_get_capset(struct virtio_gpu_device *vgdev,
int idx, int version,
struct virtio_gpu_drv_cap_cache **cache_p);
+int virtio_gpu_cmd_get_edids(struct virtio_gpu_device *vgdev);
void virtio_gpu_cmd_context_create(struct virtio_gpu_device *vgdev, uint32_t id,
uint32_t nlen, const char *name);
void virtio_gpu_cmd_context_destroy(struct virtio_gpu_device *vgdev,
@@ -299,21 +311,23 @@ void virtio_gpu_cmd_context_detach_resource(struct virtio_gpu_device *vgdev,
uint32_t resource_id);
void virtio_gpu_cmd_submit(struct virtio_gpu_device *vgdev,
void *data, uint32_t data_size,
- uint32_t ctx_id, struct virtio_gpu_fence **fence);
+ uint32_t ctx_id, struct virtio_gpu_fence *fence);
void virtio_gpu_cmd_transfer_from_host_3d(struct virtio_gpu_device *vgdev,
uint32_t resource_id, uint32_t ctx_id,
uint64_t offset, uint32_t level,
struct virtio_gpu_box *box,
- struct virtio_gpu_fence **fence);
+ struct virtio_gpu_fence *fence);
void virtio_gpu_cmd_transfer_to_host_3d(struct virtio_gpu_device *vgdev,
- uint32_t resource_id, uint32_t ctx_id,
+ struct virtio_gpu_object *bo,
+ uint32_t ctx_id,
uint64_t offset, uint32_t level,
struct virtio_gpu_box *box,
- struct virtio_gpu_fence **fence);
+ struct virtio_gpu_fence *fence);
void
virtio_gpu_cmd_resource_create_3d(struct virtio_gpu_device *vgdev,
- struct virtio_gpu_resource_create_3d *rc_3d,
- struct virtio_gpu_fence **fence);
+ struct virtio_gpu_object *bo,
+ struct virtio_gpu_object_params *params,
+ struct virtio_gpu_fence *fence);
void virtio_gpu_ctrl_ack(struct virtqueue *vq);
void virtio_gpu_cursor_ack(struct virtqueue *vq);
void virtio_gpu_fence_ack(struct virtqueue *vq);
@@ -326,7 +340,7 @@ int virtio_gpu_framebuffer_init(struct drm_device *dev,
struct virtio_gpu_framebuffer *vgfb,
const struct drm_mode_fb_cmd2 *mode_cmd,
struct drm_gem_object *obj);
-int virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev);
+void virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev);
void virtio_gpu_modeset_fini(struct virtio_gpu_device *vgdev);
/* virtio_gpu_plane.c */
@@ -341,25 +355,28 @@ void virtio_gpu_ttm_fini(struct virtio_gpu_device *vgdev);
int virtio_gpu_mmap(struct file *filp, struct vm_area_struct *vma);
/* virtio_gpu_fence.c */
-int virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev,
+bool virtio_fence_signaled(struct dma_fence *f);
+struct virtio_gpu_fence *virtio_gpu_fence_alloc(
+ struct virtio_gpu_device *vgdev);
+void virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev,
struct virtio_gpu_ctrl_hdr *cmd_hdr,
- struct virtio_gpu_fence **fence);
+ struct virtio_gpu_fence *fence);
void virtio_gpu_fence_event_process(struct virtio_gpu_device *vdev,
u64 last_seq);
/* virtio_gpu_object */
int virtio_gpu_object_create(struct virtio_gpu_device *vgdev,
- unsigned long size, bool kernel, bool pinned,
- struct virtio_gpu_object **bo_ptr);
-int virtio_gpu_object_kmap(struct virtio_gpu_object *bo, void **ptr);
+ struct virtio_gpu_object_params *params,
+ struct virtio_gpu_object **bo_ptr,
+ struct virtio_gpu_fence *fence);
+void virtio_gpu_object_kunmap(struct virtio_gpu_object *bo);
+int virtio_gpu_object_kmap(struct virtio_gpu_object *bo);
int virtio_gpu_object_get_sg_table(struct virtio_gpu_device *qdev,
struct virtio_gpu_object *bo);
void virtio_gpu_object_free_sg_table(struct virtio_gpu_object *bo);
int virtio_gpu_object_wait(struct virtio_gpu_object *bo, bool no_wait);
/* virtgpu_prime.c */
-int virtgpu_gem_prime_pin(struct drm_gem_object *obj);
-void virtgpu_gem_prime_unpin(struct drm_gem_object *obj);
struct sg_table *virtgpu_gem_prime_get_sg_table(struct drm_gem_object *obj);
struct drm_gem_object *virtgpu_gem_prime_import_sg_table(
struct drm_device *dev, struct dma_buf_attachment *attach,
@@ -372,7 +389,7 @@ int virtgpu_gem_prime_mmap(struct drm_gem_object *obj,
static inline struct virtio_gpu_object*
virtio_gpu_object_ref(struct virtio_gpu_object *bo)
{
- ttm_bo_reference(&bo->tbo);
+ ttm_bo_get(&bo->tbo);
return bo;
}
@@ -383,9 +400,8 @@ static inline void virtio_gpu_object_unref(struct virtio_gpu_object **bo)
if ((*bo) == NULL)
return;
tbo = &((*bo)->tbo);
- ttm_bo_unref(&tbo);
- if (tbo == NULL)
- *bo = NULL;
+ ttm_bo_put(tbo);
+ *bo = NULL;
}
static inline u64 virtio_gpu_object_mmap_offset(struct virtio_gpu_object *bo)
diff --git a/drivers/gpu/drm/virtio/virtgpu_fb.c b/drivers/gpu/drm/virtio/virtgpu_fb.c
index a121b1c..b07584b 100644
--- a/drivers/gpu/drm/virtio/virtgpu_fb.c
+++ b/drivers/gpu/drm/virtio/virtgpu_fb.c
@@ -27,15 +27,6 @@
#include <drm/drm_fb_helper.h>
#include "virtgpu_drv.h"
-#define VIRTIO_GPU_FBCON_POLL_PERIOD (HZ / 60)
-
-struct virtio_gpu_fbdev {
- struct drm_fb_helper helper;
- struct virtio_gpu_framebuffer vgfb;
- struct virtio_gpu_device *vgdev;
- struct delayed_work work;
-};
-
static int virtio_gpu_dirty_update(struct virtio_gpu_framebuffer *fb,
bool store, int x, int y,
int width, int height)
@@ -102,7 +93,7 @@ static int virtio_gpu_dirty_update(struct virtio_gpu_framebuffer *fb,
offset = (y * fb->base.pitches[0]) + x * bpp;
- virtio_gpu_cmd_transfer_to_host_2d(vgdev, obj->hw_res_handle,
+ virtio_gpu_cmd_transfer_to_host_2d(vgdev, obj,
offset,
cpu_to_le32(w),
cpu_to_le32(h),
@@ -157,199 +148,3 @@ int virtio_gpu_surface_dirty(struct virtio_gpu_framebuffer *vgfb,
left, top, right - left, bottom - top);
return 0;
}
-
-static void virtio_gpu_fb_dirty_work(struct work_struct *work)
-{
- struct delayed_work *delayed_work = to_delayed_work(work);
- struct virtio_gpu_fbdev *vfbdev =
- container_of(delayed_work, struct virtio_gpu_fbdev, work);
- struct virtio_gpu_framebuffer *vgfb = &vfbdev->vgfb;
-
- virtio_gpu_dirty_update(&vfbdev->vgfb, false, vgfb->x1, vgfb->y1,
- vgfb->x2 - vgfb->x1, vgfb->y2 - vgfb->y1);
-}
-
-static void virtio_gpu_3d_fillrect(struct fb_info *info,
- const struct fb_fillrect *rect)
-{
- struct virtio_gpu_fbdev *vfbdev = info->par;
-
- drm_fb_helper_sys_fillrect(info, rect);
- virtio_gpu_dirty_update(&vfbdev->vgfb, true, rect->dx, rect->dy,
- rect->width, rect->height);
- schedule_delayed_work(&vfbdev->work, VIRTIO_GPU_FBCON_POLL_PERIOD);
-}
-
-static void virtio_gpu_3d_copyarea(struct fb_info *info,
- const struct fb_copyarea *area)
-{
- struct virtio_gpu_fbdev *vfbdev = info->par;
-
- drm_fb_helper_sys_copyarea(info, area);
- virtio_gpu_dirty_update(&vfbdev->vgfb, true, area->dx, area->dy,
- area->width, area->height);
- schedule_delayed_work(&vfbdev->work, VIRTIO_GPU_FBCON_POLL_PERIOD);
-}
-
-static void virtio_gpu_3d_imageblit(struct fb_info *info,
- const struct fb_image *image)
-{
- struct virtio_gpu_fbdev *vfbdev = info->par;
-
- drm_fb_helper_sys_imageblit(info, image);
- virtio_gpu_dirty_update(&vfbdev->vgfb, true, image->dx, image->dy,
- image->width, image->height);
- schedule_delayed_work(&vfbdev->work, VIRTIO_GPU_FBCON_POLL_PERIOD);
-}
-
-static struct fb_ops virtio_gpufb_ops = {
- .owner = THIS_MODULE,
- DRM_FB_HELPER_DEFAULT_OPS,
- .fb_fillrect = virtio_gpu_3d_fillrect,
- .fb_copyarea = virtio_gpu_3d_copyarea,
- .fb_imageblit = virtio_gpu_3d_imageblit,
-};
-
-static int virtio_gpu_vmap_fb(struct virtio_gpu_device *vgdev,
- struct virtio_gpu_object *obj)
-{
- return virtio_gpu_object_kmap(obj, NULL);
-}
-
-static int virtio_gpufb_create(struct drm_fb_helper *helper,
- struct drm_fb_helper_surface_size *sizes)
-{
- struct virtio_gpu_fbdev *vfbdev =
- container_of(helper, struct virtio_gpu_fbdev, helper);
- struct drm_device *dev = helper->dev;
- struct virtio_gpu_device *vgdev = dev->dev_private;
- struct fb_info *info;
- struct drm_framebuffer *fb;
- struct drm_mode_fb_cmd2 mode_cmd = {};
- struct virtio_gpu_object *obj;
- uint32_t resid, format, size;
- int ret;
-
- mode_cmd.width = sizes->surface_width;
- mode_cmd.height = sizes->surface_height;
- mode_cmd.pitches[0] = mode_cmd.width * 4;
- mode_cmd.pixel_format = drm_mode_legacy_fb_format(32, 24);
-
- format = virtio_gpu_translate_format(mode_cmd.pixel_format);
- if (format == 0)
- return -EINVAL;
-
- size = mode_cmd.pitches[0] * mode_cmd.height;
- obj = virtio_gpu_alloc_object(dev, size, false, true);
- if (IS_ERR(obj))
- return PTR_ERR(obj);
-
- virtio_gpu_resource_id_get(vgdev, &resid);
- virtio_gpu_cmd_create_resource(vgdev, resid, format,
- mode_cmd.width, mode_cmd.height);
-
- ret = virtio_gpu_vmap_fb(vgdev, obj);
- if (ret) {
- DRM_ERROR("failed to vmap fb %d\n", ret);
- goto err_obj_vmap;
- }
-
- /* attach the object to the resource */
- ret = virtio_gpu_object_attach(vgdev, obj, resid, NULL);
- if (ret)
- goto err_obj_attach;
-
- info = drm_fb_helper_alloc_fbi(helper);
- if (IS_ERR(info)) {
- ret = PTR_ERR(info);
- goto err_fb_alloc;
- }
-
- info->par = helper;
-
- ret = virtio_gpu_framebuffer_init(dev, &vfbdev->vgfb,
- &mode_cmd, &obj->gem_base);
- if (ret)
- goto err_fb_alloc;
-
- fb = &vfbdev->vgfb.base;
-
- vfbdev->helper.fb = fb;
-
- strcpy(info->fix.id, "virtiodrmfb");
- info->fbops = &virtio_gpufb_ops;
- info->pixmap.flags = FB_PIXMAP_SYSTEM;
-
- info->screen_buffer = obj->vmap;
- info->screen_size = obj->gem_base.size;
- drm_fb_helper_fill_fix(info, fb->pitches[0], fb->format->depth);
- drm_fb_helper_fill_var(info, &vfbdev->helper,
- sizes->fb_width, sizes->fb_height);
-
- info->fix.mmio_start = 0;
- info->fix.mmio_len = 0;
- return 0;
-
-err_fb_alloc:
- virtio_gpu_cmd_resource_inval_backing(vgdev, resid);
-err_obj_attach:
-err_obj_vmap:
- virtio_gpu_gem_free_object(&obj->gem_base);
- return ret;
-}
-
-static int virtio_gpu_fbdev_destroy(struct drm_device *dev,
- struct virtio_gpu_fbdev *vgfbdev)
-{
- struct virtio_gpu_framebuffer *vgfb = &vgfbdev->vgfb;
-
- drm_fb_helper_unregister_fbi(&vgfbdev->helper);
-
- if (vgfb->base.obj[0])
- vgfb->base.obj[0] = NULL;
- drm_fb_helper_fini(&vgfbdev->helper);
- drm_framebuffer_cleanup(&vgfb->base);
-
- return 0;
-}
-static const struct drm_fb_helper_funcs virtio_gpu_fb_helper_funcs = {
- .fb_probe = virtio_gpufb_create,
-};
-
-int virtio_gpu_fbdev_init(struct virtio_gpu_device *vgdev)
-{
- struct virtio_gpu_fbdev *vgfbdev;
- int bpp_sel = 32; /* TODO: parameter from somewhere? */
- int ret;
-
- vgfbdev = kzalloc(sizeof(struct virtio_gpu_fbdev), GFP_KERNEL);
- if (!vgfbdev)
- return -ENOMEM;
-
- vgfbdev->vgdev = vgdev;
- vgdev->vgfbdev = vgfbdev;
- INIT_DELAYED_WORK(&vgfbdev->work, virtio_gpu_fb_dirty_work);
-
- drm_fb_helper_prepare(vgdev->ddev, &vgfbdev->helper,
- &virtio_gpu_fb_helper_funcs);
- ret = drm_fb_helper_init(vgdev->ddev, &vgfbdev->helper,
- VIRTIO_GPUFB_CONN_LIMIT);
- if (ret) {
- kfree(vgfbdev);
- return ret;
- }
-
- drm_fb_helper_single_add_all_connectors(&vgfbdev->helper);
- drm_fb_helper_initial_config(&vgfbdev->helper, bpp_sel);
- return 0;
-}
-
-void virtio_gpu_fbdev_fini(struct virtio_gpu_device *vgdev)
-{
- if (!vgdev->vgfbdev)
- return;
-
- virtio_gpu_fbdev_destroy(vgdev->ddev, vgdev->vgfbdev);
- kfree(vgdev->vgfbdev);
- vgdev->vgfbdev = NULL;
-}
diff --git a/drivers/gpu/drm/virtio/virtgpu_fence.c b/drivers/gpu/drm/virtio/virtgpu_fence.c
index 00c742a..6dce548 100644
--- a/drivers/gpu/drm/virtio/virtgpu_fence.c
+++ b/drivers/gpu/drm/virtio/virtgpu_fence.c
@@ -24,6 +24,7 @@
*/
#include <drm/drmP.h>
+#include <trace/events/dma_fence.h>
#include "virtgpu_drv.h"
static const char *virtio_get_driver_name(struct dma_fence *f)
@@ -36,20 +37,18 @@ static const char *virtio_get_timeline_name(struct dma_fence *f)
return "controlq";
}
-static bool virtio_signaled(struct dma_fence *f)
+bool virtio_fence_signaled(struct dma_fence *f)
{
struct virtio_gpu_fence *fence = to_virtio_fence(f);
- if (atomic64_read(&fence->drv->last_seq) >= fence->seq)
+ if (atomic64_read(&fence->drv->last_seq) >= fence->f.seqno)
return true;
return false;
}
static void virtio_fence_value_str(struct dma_fence *f, char *str, int size)
{
- struct virtio_gpu_fence *fence = to_virtio_fence(f);
-
- snprintf(str, size, "%llu", fence->seq);
+ snprintf(str, size, "%llu", (long long unsigned int) f->seqno);
}
static void virtio_timeline_value_str(struct dma_fence *f, char *str, int size)
@@ -62,34 +61,47 @@ static void virtio_timeline_value_str(struct dma_fence *f, char *str, int size)
static const struct dma_fence_ops virtio_fence_ops = {
.get_driver_name = virtio_get_driver_name,
.get_timeline_name = virtio_get_timeline_name,
- .signaled = virtio_signaled,
+ .signaled = virtio_fence_signaled,
.fence_value_str = virtio_fence_value_str,
.timeline_value_str = virtio_timeline_value_str,
};
-int virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev,
+struct virtio_gpu_fence *virtio_gpu_fence_alloc(struct virtio_gpu_device *vgdev)
+{
+ struct virtio_gpu_fence_driver *drv = &vgdev->fence_drv;
+ struct virtio_gpu_fence *fence = kzalloc(sizeof(struct virtio_gpu_fence),
+ GFP_KERNEL);
+ if (!fence)
+ return fence;
+
+ fence->drv = drv;
+
+ /* This only partially initializes the fence because the seqno is
+ * unknown yet. The fence must not be used outside of the driver
+ * until virtio_gpu_fence_emit is called.
+ */
+ dma_fence_init(&fence->f, &virtio_fence_ops, &drv->lock, drv->context, 0);
+
+ return fence;
+}
+
+void virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev,
struct virtio_gpu_ctrl_hdr *cmd_hdr,
- struct virtio_gpu_fence **fence)
+ struct virtio_gpu_fence *fence)
{
struct virtio_gpu_fence_driver *drv = &vgdev->fence_drv;
unsigned long irq_flags;
- *fence = kmalloc(sizeof(struct virtio_gpu_fence), GFP_ATOMIC);
- if ((*fence) == NULL)
- return -ENOMEM;
-
spin_lock_irqsave(&drv->lock, irq_flags);
- (*fence)->drv = drv;
- (*fence)->seq = ++drv->sync_seq;
- dma_fence_init(&(*fence)->f, &virtio_fence_ops, &drv->lock,
- drv->context, (*fence)->seq);
- dma_fence_get(&(*fence)->f);
- list_add_tail(&(*fence)->node, &drv->fences);
+ fence->f.seqno = ++drv->sync_seq;
+ dma_fence_get(&fence->f);
+ list_add_tail(&fence->node, &drv->fences);
spin_unlock_irqrestore(&drv->lock, irq_flags);
+ trace_dma_fence_emit(&fence->f);
+
cmd_hdr->flags |= cpu_to_le32(VIRTIO_GPU_FLAG_FENCE);
- cmd_hdr->fence_id = cpu_to_le64((*fence)->seq);
- return 0;
+ cmd_hdr->fence_id = cpu_to_le64(fence->f.seqno);
}
void virtio_gpu_fence_event_process(struct virtio_gpu_device *vgdev,
@@ -102,7 +114,7 @@ void virtio_gpu_fence_event_process(struct virtio_gpu_device *vgdev,
spin_lock_irqsave(&drv->lock, irq_flags);
atomic64_set(&vgdev->fence_drv.last_seq, last_seq);
list_for_each_entry_safe(fence, tmp, &drv->fences, node) {
- if (last_seq < fence->seq)
+ if (last_seq < fence->f.seqno)
continue;
dma_fence_signal_locked(&fence->f);
list_del(&fence->node);
diff --git a/drivers/gpu/drm/virtio/virtgpu_gem.c b/drivers/gpu/drm/virtio/virtgpu_gem.c
index 0f2768e..a607bd1 100644
--- a/drivers/gpu/drm/virtio/virtgpu_gem.c
+++ b/drivers/gpu/drm/virtio/virtgpu_gem.c
@@ -34,15 +34,16 @@ void virtio_gpu_gem_free_object(struct drm_gem_object *gem_obj)
virtio_gpu_object_unref(&obj);
}
-struct virtio_gpu_object *virtio_gpu_alloc_object(struct drm_device *dev,
- size_t size, bool kernel,
- bool pinned)
+struct virtio_gpu_object*
+virtio_gpu_alloc_object(struct drm_device *dev,
+ struct virtio_gpu_object_params *params,
+ struct virtio_gpu_fence *fence)
{
struct virtio_gpu_device *vgdev = dev->dev_private;
struct virtio_gpu_object *obj;
int ret;
- ret = virtio_gpu_object_create(vgdev, size, kernel, pinned, &obj);
+ ret = virtio_gpu_object_create(vgdev, params, &obj, fence);
if (ret)
return ERR_PTR(ret);
@@ -51,7 +52,7 @@ struct virtio_gpu_object *virtio_gpu_alloc_object(struct drm_device *dev,
int virtio_gpu_gem_create(struct drm_file *file,
struct drm_device *dev,
- uint64_t size,
+ struct virtio_gpu_object_params *params,
struct drm_gem_object **obj_p,
uint32_t *handle_p)
{
@@ -59,7 +60,7 @@ int virtio_gpu_gem_create(struct drm_file *file,
int ret;
u32 handle;
- obj = virtio_gpu_alloc_object(dev, size, false, false);
+ obj = virtio_gpu_alloc_object(dev, params, NULL);
if (IS_ERR(obj))
return PTR_ERR(obj);
@@ -82,35 +83,25 @@ int virtio_gpu_mode_dumb_create(struct drm_file *file_priv,
struct drm_device *dev,
struct drm_mode_create_dumb *args)
{
- struct virtio_gpu_device *vgdev = dev->dev_private;
struct drm_gem_object *gobj;
- struct virtio_gpu_object *obj;
+ struct virtio_gpu_object_params params = { 0 };
int ret;
uint32_t pitch;
- uint32_t resid;
- uint32_t format;
pitch = args->width * ((args->bpp + 1) / 8);
args->size = pitch * args->height;
args->size = ALIGN(args->size, PAGE_SIZE);
- ret = virtio_gpu_gem_create(file_priv, dev, args->size, &gobj,
+ params.format = virtio_gpu_translate_format(DRM_FORMAT_HOST_XRGB8888);
+ params.width = args->width;
+ params.height = args->height;
+ params.size = args->size;
+ params.dumb = true;
+ ret = virtio_gpu_gem_create(file_priv, dev, ¶ms, &gobj,
&args->handle);
if (ret)
goto fail;
- format = virtio_gpu_translate_format(DRM_FORMAT_XRGB8888);
- virtio_gpu_resource_id_get(vgdev, &resid);
- virtio_gpu_cmd_create_resource(vgdev, resid, format,
- args->width, args->height);
-
- /* attach the object to the resource */
- obj = gem_to_virtio_gpu_obj(gobj);
- ret = virtio_gpu_object_attach(vgdev, obj, resid, NULL);
- if (ret)
- goto fail;
-
- obj->dumb = true;
args->pitch = pitch;
return ret;
diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
index 8d2f5de..cfe8e67 100644
--- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
@@ -28,6 +28,7 @@
#include <drm/drmP.h>
#include <drm/virtgpu_drm.h>
#include <drm/ttm/ttm_execbuf_util.h>
+#include <linux/sync_file.h>
#include "virtgpu_drv.h"
@@ -53,8 +54,8 @@ static int virtio_gpu_map_ioctl(struct drm_device *dev, void *data,
&virtio_gpu_map->offset);
}
-static int virtio_gpu_object_list_validate(struct ww_acquire_ctx *ticket,
- struct list_head *head)
+int virtio_gpu_object_list_validate(struct ww_acquire_ctx *ticket,
+ struct list_head *head)
{
struct ttm_operation_ctx ctx = { false, false };
struct ttm_validate_buffer *buf;
@@ -78,7 +79,7 @@ static int virtio_gpu_object_list_validate(struct ww_acquire_ctx *ticket,
return 0;
}
-static void virtio_gpu_unref_list(struct list_head *head)
+void virtio_gpu_unref_list(struct list_head *head)
{
struct ttm_validate_buffer *buf;
struct ttm_buffer_object *bo;
@@ -105,7 +106,7 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data,
struct virtio_gpu_device *vgdev = dev->dev_private;
struct virtio_gpu_fpriv *vfpriv = drm_file->driver_priv;
struct drm_gem_object *gobj;
- struct virtio_gpu_fence *fence;
+ struct virtio_gpu_fence *out_fence;
struct virtio_gpu_object *qobj;
int ret;
uint32_t *bo_handles = NULL;
@@ -114,11 +115,46 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data,
struct ttm_validate_buffer *buflist = NULL;
int i;
struct ww_acquire_ctx ticket;
+ struct sync_file *sync_file;
+ int in_fence_fd = exbuf->fence_fd;
+ int out_fence_fd = -1;
void *buf;
if (vgdev->has_virgl_3d == false)
return -ENOSYS;
+ if ((exbuf->flags & ~VIRTGPU_EXECBUF_FLAGS))
+ return -EINVAL;
+
+ exbuf->fence_fd = -1;
+
+ if (exbuf->flags & VIRTGPU_EXECBUF_FENCE_FD_IN) {
+ struct dma_fence *in_fence;
+
+ in_fence = sync_file_get_fence(in_fence_fd);
+
+ if (!in_fence)
+ return -EINVAL;
+
+ /*
+ * Wait if the fence is from a foreign context, or if the fence
+ * array contains any fence from a foreign context.
+ */
+ ret = 0;
+ if (!dma_fence_match_context(in_fence, vgdev->fence_drv.context))
+ ret = dma_fence_wait(in_fence, true);
+
+ dma_fence_put(in_fence);
+ if (ret)
+ return ret;
+ }
+
+ if (exbuf->flags & VIRTGPU_EXECBUF_FENCE_FD_OUT) {
+ out_fence_fd = get_unused_fd_flags(O_CLOEXEC);
+ if (out_fence_fd < 0)
+ return out_fence_fd;
+ }
+
INIT_LIST_HEAD(&validate_list);
if (exbuf->num_bo_handles) {
@@ -128,26 +164,22 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data,
sizeof(struct ttm_validate_buffer),
GFP_KERNEL | __GFP_ZERO);
if (!bo_handles || !buflist) {
- kvfree(bo_handles);
- kvfree(buflist);
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto out_unused_fd;
}
- user_bo_handles = (void __user *)(uintptr_t)exbuf->bo_handles;
+ user_bo_handles = u64_to_user_ptr(exbuf->bo_handles);
if (copy_from_user(bo_handles, user_bo_handles,
exbuf->num_bo_handles * sizeof(uint32_t))) {
ret = -EFAULT;
- kvfree(bo_handles);
- kvfree(buflist);
- return ret;
+ goto out_unused_fd;
}
for (i = 0; i < exbuf->num_bo_handles; i++) {
gobj = drm_gem_object_lookup(drm_file, bo_handles[i]);
if (!gobj) {
- kvfree(bo_handles);
- kvfree(buflist);
- return -ENOENT;
+ ret = -ENOENT;
+ goto out_unused_fd;
}
qobj = gem_to_virtio_gpu_obj(gobj);
@@ -156,34 +188,60 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data,
list_add(&buflist[i].head, &validate_list);
}
kvfree(bo_handles);
+ bo_handles = NULL;
}
ret = virtio_gpu_object_list_validate(&ticket, &validate_list);
if (ret)
goto out_free;
- buf = memdup_user((void __user *)(uintptr_t)exbuf->command,
- exbuf->size);
+ buf = vmemdup_user(u64_to_user_ptr(exbuf->command), exbuf->size);
if (IS_ERR(buf)) {
ret = PTR_ERR(buf);
goto out_unresv;
}
- virtio_gpu_cmd_submit(vgdev, buf, exbuf->size,
- vfpriv->ctx_id, &fence);
- ttm_eu_fence_buffer_objects(&ticket, &validate_list, &fence->f);
+ out_fence = virtio_gpu_fence_alloc(vgdev);
+ if(!out_fence) {
+ ret = -ENOMEM;
+ goto out_memdup;
+ }
+
+ if (out_fence_fd >= 0) {
+ sync_file = sync_file_create(&out_fence->f);
+ if (!sync_file) {
+ dma_fence_put(&out_fence->f);
+ ret = -ENOMEM;
+ goto out_memdup;
+ }
+
+ exbuf->fence_fd = out_fence_fd;
+ fd_install(out_fence_fd, sync_file->file);
+ }
+
+ virtio_gpu_cmd_submit(vgdev, buf, exbuf->size,
+ vfpriv->ctx_id, out_fence);
+
+ ttm_eu_fence_buffer_objects(&ticket, &validate_list, &out_fence->f);
/* fence the command bo */
virtio_gpu_unref_list(&validate_list);
kvfree(buflist);
- dma_fence_put(&fence->f);
return 0;
+out_memdup:
+ kvfree(buf);
out_unresv:
ttm_eu_backoff_reservation(&ticket, &validate_list);
out_free:
virtio_gpu_unref_list(&validate_list);
+out_unused_fd:
+ kvfree(bo_handles);
kvfree(buflist);
+
+ if (out_fence_fd >= 0)
+ put_unused_fd(out_fence_fd);
+
return ret;
}
@@ -204,10 +262,9 @@ static int virtio_gpu_getparam_ioctl(struct drm_device *dev, void *data,
default:
return -EINVAL;
}
- if (copy_to_user((void __user *)(unsigned long)param->value,
- &value, sizeof(int))) {
+ if (copy_to_user(u64_to_user_ptr(param->value), &value, sizeof(int)))
return -EFAULT;
- }
+
return 0;
}
@@ -216,17 +273,12 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
{
struct virtio_gpu_device *vgdev = dev->dev_private;
struct drm_virtgpu_resource_create *rc = data;
+ struct virtio_gpu_fence *fence;
int ret;
- uint32_t res_id;
struct virtio_gpu_object *qobj;
struct drm_gem_object *obj;
uint32_t handle = 0;
- uint32_t size;
- struct list_head validate_list;
- struct ttm_validate_buffer mainbuf;
- struct virtio_gpu_fence *fence = NULL;
- struct ww_acquire_ctx ticket;
- struct virtio_gpu_resource_create_3d rc_3d;
+ struct virtio_gpu_object_params params = { 0 };
if (vgdev->has_virgl_3d == false) {
if (rc->depth > 1)
@@ -241,94 +293,43 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
return -EINVAL;
}
- INIT_LIST_HEAD(&validate_list);
- memset(&mainbuf, 0, sizeof(struct ttm_validate_buffer));
-
- virtio_gpu_resource_id_get(vgdev, &res_id);
-
- size = rc->size;
-
+ params.format = rc->format;
+ params.width = rc->width;
+ params.height = rc->height;
+ params.size = rc->size;
+ if (vgdev->has_virgl_3d) {
+ params.virgl = true;
+ params.target = rc->target;
+ params.bind = rc->bind;
+ params.depth = rc->depth;
+ params.array_size = rc->array_size;
+ params.last_level = rc->last_level;
+ params.nr_samples = rc->nr_samples;
+ params.flags = rc->flags;
+ }
/* allocate a single page size object */
- if (size == 0)
- size = PAGE_SIZE;
+ if (params.size == 0)
+ params.size = PAGE_SIZE;
- qobj = virtio_gpu_alloc_object(dev, size, false, false);
- if (IS_ERR(qobj)) {
- ret = PTR_ERR(qobj);
- goto fail_id;
- }
+ fence = virtio_gpu_fence_alloc(vgdev);
+ if (!fence)
+ return -ENOMEM;
+ qobj = virtio_gpu_alloc_object(dev, ¶ms, fence);
+ dma_fence_put(&fence->f);
+ if (IS_ERR(qobj))
+ return PTR_ERR(qobj);
obj = &qobj->gem_base;
- if (!vgdev->has_virgl_3d) {
- virtio_gpu_cmd_create_resource(vgdev, res_id, rc->format,
- rc->width, rc->height);
-
- ret = virtio_gpu_object_attach(vgdev, qobj, res_id, NULL);
- } else {
- /* use a gem reference since unref list undoes them */
- drm_gem_object_get(&qobj->gem_base);
- mainbuf.bo = &qobj->tbo;
- list_add(&mainbuf.head, &validate_list);
-
- ret = virtio_gpu_object_list_validate(&ticket, &validate_list);
- if (ret) {
- DRM_DEBUG("failed to validate\n");
- goto fail_unref;
- }
-
- rc_3d.resource_id = cpu_to_le32(res_id);
- rc_3d.target = cpu_to_le32(rc->target);
- rc_3d.format = cpu_to_le32(rc->format);
- rc_3d.bind = cpu_to_le32(rc->bind);
- rc_3d.width = cpu_to_le32(rc->width);
- rc_3d.height = cpu_to_le32(rc->height);
- rc_3d.depth = cpu_to_le32(rc->depth);
- rc_3d.array_size = cpu_to_le32(rc->array_size);
- rc_3d.last_level = cpu_to_le32(rc->last_level);
- rc_3d.nr_samples = cpu_to_le32(rc->nr_samples);
- rc_3d.flags = cpu_to_le32(rc->flags);
-
- virtio_gpu_cmd_resource_create_3d(vgdev, &rc_3d, NULL);
- ret = virtio_gpu_object_attach(vgdev, qobj, res_id, &fence);
- if (ret) {
- ttm_eu_backoff_reservation(&ticket, &validate_list);
- goto fail_unref;
- }
- ttm_eu_fence_buffer_objects(&ticket, &validate_list, &fence->f);
- }
-
- qobj->hw_res_handle = res_id;
-
ret = drm_gem_handle_create(file_priv, obj, &handle);
if (ret) {
-
drm_gem_object_release(obj);
- if (vgdev->has_virgl_3d) {
- virtio_gpu_unref_list(&validate_list);
- dma_fence_put(&fence->f);
- }
return ret;
}
drm_gem_object_put_unlocked(obj);
- rc->res_handle = res_id; /* similiar to a VM address */
+ rc->res_handle = qobj->hw_res_handle; /* similiar to a VM address */
rc->bo_handle = handle;
-
- if (vgdev->has_virgl_3d) {
- virtio_gpu_unref_list(&validate_list);
- dma_fence_put(&fence->f);
- }
return 0;
-fail_unref:
- if (vgdev->has_virgl_3d) {
- virtio_gpu_unref_list(&validate_list);
- dma_fence_put(&fence->f);
- }
-//fail_obj:
-// drm_gem_object_handle_unreference_unlocked(obj);
-fail_id:
- virtio_gpu_resource_id_put(vgdev, res_id);
- return ret;
}
static int virtio_gpu_resource_info_ioctl(struct drm_device *dev, void *data,
@@ -383,10 +384,16 @@ static int virtio_gpu_transfer_from_host_ioctl(struct drm_device *dev,
goto out_unres;
convert_to_hw_box(&box, &args->box);
+
+ fence = virtio_gpu_fence_alloc(vgdev);
+ if (!fence) {
+ ret = -ENOMEM;
+ goto out_unres;
+ }
virtio_gpu_cmd_transfer_from_host_3d
(vgdev, qobj->hw_res_handle,
vfpriv->ctx_id, offset, args->level,
- &box, &fence);
+ &box, fence);
reservation_object_add_excl_fence(qobj->tbo.resv,
&fence->f);
@@ -429,13 +436,18 @@ static int virtio_gpu_transfer_to_host_ioctl(struct drm_device *dev, void *data,
convert_to_hw_box(&box, &args->box);
if (!vgdev->has_virgl_3d) {
virtio_gpu_cmd_transfer_to_host_2d
- (vgdev, qobj->hw_res_handle, offset,
+ (vgdev, qobj, offset,
box.w, box.h, box.x, box.y, NULL);
} else {
+ fence = virtio_gpu_fence_alloc(vgdev);
+ if (!fence) {
+ ret = -ENOMEM;
+ goto out_unres;
+ }
virtio_gpu_cmd_transfer_to_host_3d
- (vgdev, qobj->hw_res_handle,
+ (vgdev, qobj,
vfpriv ? vfpriv->ctx_id : 0, offset,
- args->level, &box, &fence);
+ args->level, &box, fence);
reservation_object_add_excl_fence(qobj->tbo.resv,
&fence->f);
dma_fence_put(&fence->f);
@@ -512,7 +524,6 @@ static int virtio_gpu_get_caps_ioctl(struct drm_device *dev,
list_for_each_entry(cache_ent, &vgdev->cap_cache, head) {
if (cache_ent->id == args->cap_set_id &&
cache_ent->version == args->cap_set_ver) {
- ptr = cache_ent->caps_cache;
spin_unlock(&vgdev->display_info_lock);
goto copy_exit;
}
@@ -523,6 +534,7 @@ static int virtio_gpu_get_caps_ioctl(struct drm_device *dev,
virtio_gpu_cmd_get_capset(vgdev, found_valid, args->cap_set_ver,
&cache_ent);
+copy_exit:
ret = wait_event_timeout(vgdev->resp_wq,
atomic_read(&cache_ent->is_valid), 5 * HZ);
if (!ret)
@@ -533,8 +545,7 @@ static int virtio_gpu_get_caps_ioctl(struct drm_device *dev,
ptr = cache_ent->caps_cache;
-copy_exit:
- if (copy_to_user((void __user *)(unsigned long)args->addr, ptr, size))
+ if (copy_to_user(u64_to_user_ptr(args->addr), ptr, size))
return -EFAULT;
return 0;
@@ -542,34 +553,34 @@ static int virtio_gpu_get_caps_ioctl(struct drm_device *dev,
struct drm_ioctl_desc virtio_gpu_ioctls[DRM_VIRTIO_NUM_IOCTLS] = {
DRM_IOCTL_DEF_DRV(VIRTGPU_MAP, virtio_gpu_map_ioctl,
- DRM_AUTH | DRM_UNLOCKED | DRM_RENDER_ALLOW),
+ DRM_AUTH | DRM_RENDER_ALLOW),
DRM_IOCTL_DEF_DRV(VIRTGPU_EXECBUFFER, virtio_gpu_execbuffer_ioctl,
- DRM_AUTH | DRM_UNLOCKED | DRM_RENDER_ALLOW),
+ DRM_AUTH | DRM_RENDER_ALLOW),
DRM_IOCTL_DEF_DRV(VIRTGPU_GETPARAM, virtio_gpu_getparam_ioctl,
- DRM_AUTH | DRM_UNLOCKED | DRM_RENDER_ALLOW),
+ DRM_AUTH | DRM_RENDER_ALLOW),
DRM_IOCTL_DEF_DRV(VIRTGPU_RESOURCE_CREATE,
virtio_gpu_resource_create_ioctl,
- DRM_AUTH | DRM_UNLOCKED | DRM_RENDER_ALLOW),
+ DRM_AUTH | DRM_RENDER_ALLOW),
DRM_IOCTL_DEF_DRV(VIRTGPU_RESOURCE_INFO, virtio_gpu_resource_info_ioctl,
- DRM_AUTH | DRM_UNLOCKED | DRM_RENDER_ALLOW),
+ DRM_AUTH | DRM_RENDER_ALLOW),
/* make transfer async to the main ring? - no sure, can we
* thread these in the underlying GL
*/
DRM_IOCTL_DEF_DRV(VIRTGPU_TRANSFER_FROM_HOST,
virtio_gpu_transfer_from_host_ioctl,
- DRM_AUTH | DRM_UNLOCKED | DRM_RENDER_ALLOW),
+ DRM_AUTH | DRM_RENDER_ALLOW),
DRM_IOCTL_DEF_DRV(VIRTGPU_TRANSFER_TO_HOST,
virtio_gpu_transfer_to_host_ioctl,
- DRM_AUTH | DRM_UNLOCKED | DRM_RENDER_ALLOW),
+ DRM_AUTH | DRM_RENDER_ALLOW),
DRM_IOCTL_DEF_DRV(VIRTGPU_WAIT, virtio_gpu_wait_ioctl,
- DRM_AUTH | DRM_UNLOCKED | DRM_RENDER_ALLOW),
+ DRM_AUTH | DRM_RENDER_ALLOW),
DRM_IOCTL_DEF_DRV(VIRTGPU_GET_CAPS, virtio_gpu_get_caps_ioctl,
- DRM_AUTH | DRM_UNLOCKED | DRM_RENDER_ALLOW),
+ DRM_AUTH | DRM_RENDER_ALLOW),
};
diff --git a/drivers/gpu/drm/virtio/virtgpu_kms.c b/drivers/gpu/drm/virtio/virtgpu_kms.c
index d755599..de1439e 100644
--- a/drivers/gpu/drm/virtio/virtgpu_kms.c
+++ b/drivers/gpu/drm/virtio/virtgpu_kms.c
@@ -28,11 +28,6 @@
#include <drm/drmP.h>
#include "virtgpu_drv.h"
-static int virtio_gpu_fbdev = 1;
-
-MODULE_PARM_DESC(fbdev, "Disable/Enable framebuffer device & console");
-module_param_named(fbdev, virtio_gpu_fbdev, int, 0400);
-
static void virtio_gpu_config_changed_work_func(struct work_struct *work)
{
struct virtio_gpu_device *vgdev =
@@ -44,6 +39,8 @@ static void virtio_gpu_config_changed_work_func(struct work_struct *work)
virtio_cread(vgdev->vdev, struct virtio_gpu_config,
events_read, &events_read);
if (events_read & VIRTIO_GPU_EVENT_DISPLAY) {
+ if (vgdev->has_edid)
+ virtio_gpu_cmd_get_edids(vgdev);
virtio_gpu_cmd_get_display_info(vgdev);
drm_helper_hpd_irq_event(vgdev->ddev);
events_clear |= VIRTIO_GPU_EVENT_DISPLAY;
@@ -52,39 +49,23 @@ static void virtio_gpu_config_changed_work_func(struct work_struct *work)
events_clear, &events_clear);
}
-static void virtio_gpu_ctx_id_get(struct virtio_gpu_device *vgdev,
- uint32_t *resid)
+static int virtio_gpu_context_create(struct virtio_gpu_device *vgdev,
+ uint32_t nlen, const char *name)
{
- int handle;
+ int handle = ida_alloc(&vgdev->ctx_id_ida, GFP_KERNEL);
- idr_preload(GFP_KERNEL);
- spin_lock(&vgdev->ctx_id_idr_lock);
- handle = idr_alloc(&vgdev->ctx_id_idr, NULL, 1, 0, 0);
- spin_unlock(&vgdev->ctx_id_idr_lock);
- idr_preload_end();
- *resid = handle;
-}
-
-static void virtio_gpu_ctx_id_put(struct virtio_gpu_device *vgdev, uint32_t id)
-{
- spin_lock(&vgdev->ctx_id_idr_lock);
- idr_remove(&vgdev->ctx_id_idr, id);
- spin_unlock(&vgdev->ctx_id_idr_lock);
-}
-
-static void virtio_gpu_context_create(struct virtio_gpu_device *vgdev,
- uint32_t nlen, const char *name,
- uint32_t *ctx_id)
-{
- virtio_gpu_ctx_id_get(vgdev, ctx_id);
- virtio_gpu_cmd_context_create(vgdev, *ctx_id, nlen, name);
+ if (handle < 0)
+ return handle;
+ handle += 1;
+ virtio_gpu_cmd_context_create(vgdev, handle, nlen, name);
+ return handle;
}
static void virtio_gpu_context_destroy(struct virtio_gpu_device *vgdev,
uint32_t ctx_id)
{
virtio_gpu_cmd_context_destroy(vgdev, ctx_id);
- virtio_gpu_ctx_id_put(vgdev, ctx_id);
+ ida_free(&vgdev->ctx_id_ida, ctx_id - 1);
}
static void virtio_gpu_init_vq(struct virtio_gpu_queue *vgvq,
@@ -127,7 +108,7 @@ static void virtio_gpu_get_capsets(struct virtio_gpu_device *vgdev,
vgdev->num_capsets = num_capsets;
}
-int virtio_gpu_driver_load(struct drm_device *dev, unsigned long flags)
+int virtio_gpu_init(struct drm_device *dev)
{
static vq_callback_t *callbacks[] = {
virtio_gpu_ctrl_ack, virtio_gpu_cursor_ack
@@ -153,10 +134,8 @@ int virtio_gpu_driver_load(struct drm_device *dev, unsigned long flags)
vgdev->dev = dev->dev;
spin_lock_init(&vgdev->display_info_lock);
- spin_lock_init(&vgdev->ctx_id_idr_lock);
- idr_init(&vgdev->ctx_id_idr);
- spin_lock_init(&vgdev->resource_idr_lock);
- idr_init(&vgdev->resource_idr);
+ ida_init(&vgdev->ctx_id_ida);
+ ida_init(&vgdev->resource_ida);
init_waitqueue_head(&vgdev->resp_wq);
virtio_gpu_init_vq(&vgdev->ctrlq, virtio_gpu_dequeue_ctrl_func);
virtio_gpu_init_vq(&vgdev->cursorq, virtio_gpu_dequeue_cursor_func);
@@ -176,6 +155,10 @@ int virtio_gpu_driver_load(struct drm_device *dev, unsigned long flags)
#else
DRM_INFO("virgl 3d acceleration not supported by guest\n");
#endif
+ if (virtio_has_feature(vgdev->vdev, VIRTIO_GPU_F_EDID)) {
+ vgdev->has_edid = true;
+ DRM_INFO("EDID support available.\n");
+ }
ret = virtio_find_vqs(vgdev->vdev, 2, vqs, callbacks, names, NULL);
if (ret) {
@@ -212,24 +195,20 @@ int virtio_gpu_driver_load(struct drm_device *dev, unsigned long flags)
num_capsets, &num_capsets);
DRM_INFO("number of cap sets: %d\n", num_capsets);
- ret = virtio_gpu_modeset_init(vgdev);
- if (ret)
- goto err_modeset;
+ virtio_gpu_modeset_init(vgdev);
virtio_device_ready(vgdev->vdev);
vgdev->vqs_ready = true;
if (num_capsets)
virtio_gpu_get_capsets(vgdev, num_capsets);
+ if (vgdev->has_edid)
+ virtio_gpu_cmd_get_edids(vgdev);
virtio_gpu_cmd_get_display_info(vgdev);
wait_event_timeout(vgdev->resp_wq, !vgdev->display_info_pending,
5 * HZ);
- if (virtio_gpu_fbdev)
- virtio_gpu_fbdev_init(vgdev);
-
return 0;
-err_modeset:
err_scanouts:
virtio_gpu_ttm_fini(vgdev);
err_ttm:
@@ -252,7 +231,7 @@ static void virtio_gpu_cleanup_cap_cache(struct virtio_gpu_device *vgdev)
}
}
-void virtio_gpu_driver_unload(struct drm_device *dev)
+void virtio_gpu_deinit(struct drm_device *dev)
{
struct virtio_gpu_device *vgdev = dev->dev_private;
@@ -260,6 +239,7 @@ void virtio_gpu_driver_unload(struct drm_device *dev)
flush_work(&vgdev->ctrlq.dequeue_work);
flush_work(&vgdev->cursorq.dequeue_work);
flush_work(&vgdev->config_changed_work);
+ vgdev->vdev->config->reset(vgdev->vdev);
vgdev->vdev->config->del_vqs(vgdev->vdev);
virtio_gpu_modeset_fini(vgdev);
@@ -274,7 +254,7 @@ int virtio_gpu_driver_open(struct drm_device *dev, struct drm_file *file)
{
struct virtio_gpu_device *vgdev = dev->dev_private;
struct virtio_gpu_fpriv *vfpriv;
- uint32_t id;
+ int id;
char dbgname[TASK_COMM_LEN];
/* can't create contexts without 3d renderer */
@@ -287,7 +267,11 @@ int virtio_gpu_driver_open(struct drm_device *dev, struct drm_file *file)
return -ENOMEM;
get_task_comm(dbgname, current);
- virtio_gpu_context_create(vgdev, strlen(dbgname), dbgname, &id);
+ id = virtio_gpu_context_create(vgdev, strlen(dbgname), dbgname);
+ if (id < 0) {
+ kfree(vfpriv);
+ return id;
+ }
vfpriv->ctx_id = id;
file->driver_priv = vfpriv;
diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c
index 9f2f470..44a787f 100644
--- a/drivers/gpu/drm/virtio/virtgpu_object.c
+++ b/drivers/gpu/drm/virtio/virtgpu_object.c
@@ -23,8 +23,46 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
+#include <linux/moduleparam.h>
+
+#include <drm/ttm/ttm_execbuf_util.h>
+
#include "virtgpu_drv.h"
+static int virtio_gpu_virglrenderer_workaround = 1;
+module_param_named(virglhack, virtio_gpu_virglrenderer_workaround, int, 0400);
+
+static int virtio_gpu_resource_id_get(struct virtio_gpu_device *vgdev,
+ uint32_t *resid)
+{
+ if (virtio_gpu_virglrenderer_workaround) {
+ /*
+ * Hack to avoid re-using resource IDs.
+ *
+ * virglrenderer versions up to (and including) 0.7.0
+ * can't deal with that. virglrenderer commit
+ * "f91a9dd35715 Fix unlinking resources from hash
+ * table." (Feb 2019) fixes the bug.
+ */
+ static atomic_t seqno = ATOMIC_INIT(0);
+ int handle = atomic_inc_return(&seqno);
+ *resid = handle + 1;
+ } else {
+ int handle = ida_alloc(&vgdev->resource_ida, GFP_KERNEL);
+ if (handle < 0)
+ return handle;
+ *resid = handle + 1;
+ }
+ return 0;
+}
+
+static void virtio_gpu_resource_id_put(struct virtio_gpu_device *vgdev, uint32_t id)
+{
+ if (!virtio_gpu_virglrenderer_workaround) {
+ ida_free(&vgdev->resource_ida, id - 1);
+ }
+}
+
static void virtio_gpu_ttm_bo_destroy(struct ttm_buffer_object *tbo)
{
struct virtio_gpu_object *bo;
@@ -33,88 +71,130 @@ static void virtio_gpu_ttm_bo_destroy(struct ttm_buffer_object *tbo)
bo = container_of(tbo, struct virtio_gpu_object, tbo);
vgdev = (struct virtio_gpu_device *)bo->gem_base.dev->dev_private;
- if (bo->hw_res_handle)
+ if (bo->created)
virtio_gpu_cmd_unref_resource(vgdev, bo->hw_res_handle);
if (bo->pages)
virtio_gpu_object_free_sg_table(bo);
drm_gem_object_release(&bo->gem_base);
+ virtio_gpu_resource_id_put(vgdev, bo->hw_res_handle);
kfree(bo);
}
-static void virtio_gpu_init_ttm_placement(struct virtio_gpu_object *vgbo,
- bool pinned)
+static void virtio_gpu_init_ttm_placement(struct virtio_gpu_object *vgbo)
{
u32 c = 1;
- u32 pflag = pinned ? TTM_PL_FLAG_NO_EVICT : 0;
vgbo->placement.placement = &vgbo->placement_code;
vgbo->placement.busy_placement = &vgbo->placement_code;
vgbo->placement_code.fpfn = 0;
vgbo->placement_code.lpfn = 0;
vgbo->placement_code.flags =
- TTM_PL_MASK_CACHING | TTM_PL_FLAG_TT | pflag;
+ TTM_PL_MASK_CACHING | TTM_PL_FLAG_TT |
+ TTM_PL_FLAG_NO_EVICT;
vgbo->placement.num_placement = c;
vgbo->placement.num_busy_placement = c;
}
int virtio_gpu_object_create(struct virtio_gpu_device *vgdev,
- unsigned long size, bool kernel, bool pinned,
- struct virtio_gpu_object **bo_ptr)
+ struct virtio_gpu_object_params *params,
+ struct virtio_gpu_object **bo_ptr,
+ struct virtio_gpu_fence *fence)
{
struct virtio_gpu_object *bo;
- enum ttm_bo_type type;
size_t acc_size;
int ret;
- if (kernel)
- type = ttm_bo_type_kernel;
- else
- type = ttm_bo_type_device;
*bo_ptr = NULL;
- acc_size = ttm_bo_dma_acc_size(&vgdev->mman.bdev, size,
+ acc_size = ttm_bo_dma_acc_size(&vgdev->mman.bdev, params->size,
sizeof(struct virtio_gpu_object));
bo = kzalloc(sizeof(struct virtio_gpu_object), GFP_KERNEL);
if (bo == NULL)
return -ENOMEM;
- size = roundup(size, PAGE_SIZE);
- ret = drm_gem_object_init(vgdev->ddev, &bo->gem_base, size);
- if (ret != 0) {
+ ret = virtio_gpu_resource_id_get(vgdev, &bo->hw_res_handle);
+ if (ret < 0) {
kfree(bo);
return ret;
}
- bo->dumb = false;
- virtio_gpu_init_ttm_placement(bo, pinned);
+ params->size = roundup(params->size, PAGE_SIZE);
+ ret = drm_gem_object_init(vgdev->ddev, &bo->gem_base, params->size);
+ if (ret != 0) {
+ virtio_gpu_resource_id_put(vgdev, bo->hw_res_handle);
+ kfree(bo);
+ return ret;
+ }
+ bo->dumb = params->dumb;
- ret = ttm_bo_init(&vgdev->mman.bdev, &bo->tbo, size, type,
- &bo->placement, 0, !kernel, acc_size,
- NULL, NULL, &virtio_gpu_ttm_bo_destroy);
+ if (params->virgl) {
+ virtio_gpu_cmd_resource_create_3d(vgdev, bo, params, fence);
+ } else {
+ virtio_gpu_cmd_create_resource(vgdev, bo, params, fence);
+ }
+
+ virtio_gpu_init_ttm_placement(bo);
+ ret = ttm_bo_init(&vgdev->mman.bdev, &bo->tbo, params->size,
+ ttm_bo_type_device, &bo->placement, 0,
+ true, acc_size, NULL, NULL,
+ &virtio_gpu_ttm_bo_destroy);
/* ttm_bo_init failure will call the destroy */
if (ret != 0)
return ret;
+ if (fence) {
+ struct virtio_gpu_fence_driver *drv = &vgdev->fence_drv;
+ struct list_head validate_list;
+ struct ttm_validate_buffer mainbuf;
+ struct ww_acquire_ctx ticket;
+ unsigned long irq_flags;
+ bool signaled;
+
+ INIT_LIST_HEAD(&validate_list);
+ memset(&mainbuf, 0, sizeof(struct ttm_validate_buffer));
+
+ /* use a gem reference since unref list undoes them */
+ drm_gem_object_get(&bo->gem_base);
+ mainbuf.bo = &bo->tbo;
+ list_add(&mainbuf.head, &validate_list);
+
+ ret = virtio_gpu_object_list_validate(&ticket, &validate_list);
+ if (ret == 0) {
+ spin_lock_irqsave(&drv->lock, irq_flags);
+ signaled = virtio_fence_signaled(&fence->f);
+ if (!signaled)
+ /* virtio create command still in flight */
+ ttm_eu_fence_buffer_objects(&ticket, &validate_list,
+ &fence->f);
+ spin_unlock_irqrestore(&drv->lock, irq_flags);
+ if (signaled)
+ /* virtio create command finished */
+ ttm_eu_backoff_reservation(&ticket, &validate_list);
+ }
+ virtio_gpu_unref_list(&validate_list);
+ }
+
*bo_ptr = bo;
return 0;
}
-int virtio_gpu_object_kmap(struct virtio_gpu_object *bo, void **ptr)
+void virtio_gpu_object_kunmap(struct virtio_gpu_object *bo)
+{
+ bo->vmap = NULL;
+ ttm_bo_kunmap(&bo->kmap);
+}
+
+int virtio_gpu_object_kmap(struct virtio_gpu_object *bo)
{
bool is_iomem;
int r;
- if (bo->vmap) {
- if (ptr)
- *ptr = bo->vmap;
- return 0;
- }
+ WARN_ON(bo->vmap);
+
r = ttm_bo_kmap(&bo->tbo, 0, bo->tbo.num_pages, &bo->kmap);
if (r)
return r;
bo->vmap = ttm_kmap_obj_virtual(&bo->kmap, &is_iomem);
- if (ptr)
- *ptr = bo->vmap;
return 0;
}
diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c b/drivers/gpu/drm/virtio/virtgpu_plane.c
index dc5b5b2..7eaac3b 100644
--- a/drivers/gpu/drm/virtio/virtgpu_plane.c
+++ b/drivers/gpu/drm/virtio/virtgpu_plane.c
@@ -152,13 +152,13 @@ static void virtio_gpu_primary_plane_update(struct drm_plane *plane,
if (WARN_ON(!output))
return;
- if (plane->state->fb) {
+ if (plane->state->fb && output->enabled) {
vgfb = to_virtio_gpu_framebuffer(plane->state->fb);
bo = gem_to_virtio_gpu_obj(vgfb->base.obj[0]);
handle = bo->hw_res_handle;
if (bo->dumb) {
virtio_gpu_cmd_transfer_to_host_2d
- (vgdev, handle, 0,
+ (vgdev, bo, 0,
cpu_to_le32(plane->state->src_w >> 16),
cpu_to_le32(plane->state->src_h >> 16),
cpu_to_le32(plane->state->src_x >> 16),
@@ -180,11 +180,49 @@ static void virtio_gpu_primary_plane_update(struct drm_plane *plane,
plane->state->src_h >> 16,
plane->state->src_x >> 16,
plane->state->src_y >> 16);
- virtio_gpu_cmd_resource_flush(vgdev, handle,
- plane->state->src_x >> 16,
- plane->state->src_y >> 16,
- plane->state->src_w >> 16,
- plane->state->src_h >> 16);
+ if (handle)
+ virtio_gpu_cmd_resource_flush(vgdev, handle,
+ plane->state->src_x >> 16,
+ plane->state->src_y >> 16,
+ plane->state->src_w >> 16,
+ plane->state->src_h >> 16);
+}
+
+static int virtio_gpu_cursor_prepare_fb(struct drm_plane *plane,
+ struct drm_plane_state *new_state)
+{
+ struct drm_device *dev = plane->dev;
+ struct virtio_gpu_device *vgdev = dev->dev_private;
+ struct virtio_gpu_framebuffer *vgfb;
+ struct virtio_gpu_object *bo;
+
+ if (!new_state->fb)
+ return 0;
+
+ vgfb = to_virtio_gpu_framebuffer(new_state->fb);
+ bo = gem_to_virtio_gpu_obj(vgfb->base.obj[0]);
+ if (bo && bo->dumb && (plane->state->fb != new_state->fb)) {
+ vgfb->fence = virtio_gpu_fence_alloc(vgdev);
+ if (!vgfb->fence)
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+static void virtio_gpu_cursor_cleanup_fb(struct drm_plane *plane,
+ struct drm_plane_state *old_state)
+{
+ struct virtio_gpu_framebuffer *vgfb;
+
+ if (!plane->state->fb)
+ return;
+
+ vgfb = to_virtio_gpu_framebuffer(plane->state->fb);
+ if (vgfb->fence) {
+ dma_fence_put(&vgfb->fence->f);
+ vgfb->fence = NULL;
+ }
}
static void virtio_gpu_cursor_plane_update(struct drm_plane *plane,
@@ -194,7 +232,6 @@ static void virtio_gpu_cursor_plane_update(struct drm_plane *plane,
struct virtio_gpu_device *vgdev = dev->dev_private;
struct virtio_gpu_output *output = NULL;
struct virtio_gpu_framebuffer *vgfb;
- struct virtio_gpu_fence *fence = NULL;
struct virtio_gpu_object *bo = NULL;
uint32_t handle;
int ret = 0;
@@ -217,16 +254,16 @@ static void virtio_gpu_cursor_plane_update(struct drm_plane *plane,
if (bo && bo->dumb && (plane->state->fb != old_state->fb)) {
/* new cursor -- update & wait */
virtio_gpu_cmd_transfer_to_host_2d
- (vgdev, handle, 0,
+ (vgdev, bo, 0,
cpu_to_le32(plane->state->crtc_w),
cpu_to_le32(plane->state->crtc_h),
- 0, 0, &fence);
+ 0, 0, vgfb->fence);
ret = virtio_gpu_object_reserve(bo, false);
if (!ret) {
reservation_object_add_excl_fence(bo->tbo.resv,
- &fence->f);
- dma_fence_put(&fence->f);
- fence = NULL;
+ &vgfb->fence->f);
+ dma_fence_put(&vgfb->fence->f);
+ vgfb->fence = NULL;
virtio_gpu_object_unreserve(bo);
virtio_gpu_object_wait(bo, false);
}
@@ -268,6 +305,8 @@ static const struct drm_plane_helper_funcs virtio_gpu_primary_helper_funcs = {
};
static const struct drm_plane_helper_funcs virtio_gpu_cursor_helper_funcs = {
+ .prepare_fb = virtio_gpu_cursor_prepare_fb,
+ .cleanup_fb = virtio_gpu_cursor_cleanup_fb,
.atomic_check = virtio_gpu_plane_atomic_check,
.atomic_update = virtio_gpu_cursor_plane_update,
};
diff --git a/drivers/gpu/drm/virtio/virtgpu_prime.c b/drivers/gpu/drm/virtio/virtgpu_prime.c
index d27a168..4bbdaed 100644
--- a/drivers/gpu/drm/virtio/virtgpu_prime.c
+++ b/drivers/gpu/drm/virtio/virtgpu_prime.c
@@ -28,21 +28,16 @@
* device that might share buffers with virtgpu
*/
-int virtgpu_gem_prime_pin(struct drm_gem_object *obj)
-{
- WARN_ONCE(1, "not implemented");
- return -ENODEV;
-}
-
-void virtgpu_gem_prime_unpin(struct drm_gem_object *obj)
-{
- WARN_ONCE(1, "not implemented");
-}
-
struct sg_table *virtgpu_gem_prime_get_sg_table(struct drm_gem_object *obj)
{
- WARN_ONCE(1, "not implemented");
- return ERR_PTR(-ENODEV);
+ struct virtio_gpu_object *bo = gem_to_virtio_gpu_obj(obj);
+
+ if (!bo->tbo.ttm->pages || !bo->tbo.ttm->num_pages)
+ /* should not happen */
+ return ERR_PTR(-EINVAL);
+
+ return drm_prime_pages_to_sg(bo->tbo.ttm->pages,
+ bo->tbo.ttm->num_pages);
}
struct drm_gem_object *virtgpu_gem_prime_import_sg_table(
@@ -55,17 +50,25 @@ struct drm_gem_object *virtgpu_gem_prime_import_sg_table(
void *virtgpu_gem_prime_vmap(struct drm_gem_object *obj)
{
- WARN_ONCE(1, "not implemented");
- return ERR_PTR(-ENODEV);
+ struct virtio_gpu_object *bo = gem_to_virtio_gpu_obj(obj);
+ int ret;
+
+ ret = virtio_gpu_object_kmap(bo);
+ if (ret)
+ return NULL;
+ return bo->vmap;
}
void virtgpu_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr)
{
- WARN_ONCE(1, "not implemented");
+ virtio_gpu_object_kunmap(gem_to_virtio_gpu_obj(obj));
}
int virtgpu_gem_prime_mmap(struct drm_gem_object *obj,
- struct vm_area_struct *area)
+ struct vm_area_struct *vma)
{
- return -ENODEV;
+ struct virtio_gpu_object *bo = gem_to_virtio_gpu_obj(obj);
+
+ bo->gem_base.vma_node.vm_node.start = bo->tbo.vma_node.vm_node.start;
+ return drm_gem_prime_mmap(obj, vma);
}
diff --git a/drivers/gpu/drm/virtio/virtgpu_trace.h b/drivers/gpu/drm/virtio/virtgpu_trace.h
new file mode 100644
index 0000000..711ecc2
--- /dev/null
+++ b/drivers/gpu/drm/virtio/virtgpu_trace.h
@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#if !defined(_VIRTGPU_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
+#define _VIRTGPU_TRACE_H_
+
+#include <linux/tracepoint.h>
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM virtio_gpu
+#define TRACE_INCLUDE_FILE virtgpu_trace
+
+DECLARE_EVENT_CLASS(virtio_gpu_cmd,
+ TP_PROTO(struct virtqueue *vq, struct virtio_gpu_ctrl_hdr *hdr),
+ TP_ARGS(vq, hdr),
+ TP_STRUCT__entry(
+ __field(int, dev)
+ __field(unsigned int, vq)
+ __field(const char *, name)
+ __field(u32, type)
+ __field(u32, flags)
+ __field(u64, fence_id)
+ __field(u32, ctx_id)
+ ),
+ TP_fast_assign(
+ __entry->dev = vq->vdev->index;
+ __entry->vq = vq->index;
+ __entry->name = vq->name;
+ __entry->type = le32_to_cpu(hdr->type);
+ __entry->flags = le32_to_cpu(hdr->flags);
+ __entry->fence_id = le64_to_cpu(hdr->fence_id);
+ __entry->ctx_id = le32_to_cpu(hdr->ctx_id);
+ ),
+ TP_printk("vdev=%d vq=%u name=%s type=0x%x flags=0x%x fence_id=%llu ctx_id=%u",
+ __entry->dev, __entry->vq, __entry->name,
+ __entry->type, __entry->flags, __entry->fence_id,
+ __entry->ctx_id)
+);
+
+DEFINE_EVENT(virtio_gpu_cmd, virtio_gpu_cmd_queue,
+ TP_PROTO(struct virtqueue *vq, struct virtio_gpu_ctrl_hdr *hdr),
+ TP_ARGS(vq, hdr)
+);
+
+DEFINE_EVENT(virtio_gpu_cmd, virtio_gpu_cmd_response,
+ TP_PROTO(struct virtqueue *vq, struct virtio_gpu_ctrl_hdr *hdr),
+ TP_ARGS(vq, hdr)
+);
+
+#endif
+
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH ../../drivers/gpu/drm/virtio
+#include <trace/define_trace.h>
diff --git a/drivers/gpu/drm/virtio/virtgpu_trace_points.c b/drivers/gpu/drm/virtio/virtgpu_trace_points.c
new file mode 100644
index 0000000..1970cb6
--- /dev/null
+++ b/drivers/gpu/drm/virtio/virtgpu_trace_points.c
@@ -0,0 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "virtgpu_drv.h"
+
+#define CREATE_TRACE_POINTS
+#include "virtgpu_trace.h"
diff --git a/drivers/gpu/drm/virtio/virtgpu_ttm.c b/drivers/gpu/drm/virtio/virtgpu_ttm.c
index 11f8ae5..8f78002 100644
--- a/drivers/gpu/drm/virtio/virtgpu_ttm.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ttm.c
@@ -106,29 +106,6 @@ static void virtio_gpu_ttm_global_fini(struct virtio_gpu_device *vgdev)
}
}
-#if 0
-/*
- * Hmm, seems to not do anything useful. Leftover debug hack?
- * Something like printing pagefaults to kernel log?
- */
-static struct vm_operations_struct virtio_gpu_ttm_vm_ops;
-static const struct vm_operations_struct *ttm_vm_ops;
-
-static int virtio_gpu_ttm_fault(struct vm_fault *vmf)
-{
- struct ttm_buffer_object *bo;
- struct virtio_gpu_device *vgdev;
- int r;
-
- bo = (struct ttm_buffer_object *)vmf->vma->vm_private_data;
- if (bo == NULL)
- return VM_FAULT_NOPAGE;
- vgdev = virtio_gpu_get_vgdev(bo->bdev);
- r = ttm_vm_ops->fault(vmf);
- return r;
-}
-#endif
-
int virtio_gpu_mmap(struct file *filp, struct vm_area_struct *vma)
{
struct drm_file *file_priv;
@@ -143,19 +120,8 @@ int virtio_gpu_mmap(struct file *filp, struct vm_area_struct *vma)
return -EINVAL;
}
r = ttm_bo_mmap(filp, vma, &vgdev->mman.bdev);
-#if 0
- if (unlikely(r != 0))
- return r;
- if (unlikely(ttm_vm_ops == NULL)) {
- ttm_vm_ops = vma->vm_ops;
- virtio_gpu_ttm_vm_ops = *ttm_vm_ops;
- virtio_gpu_ttm_vm_ops.fault = &virtio_gpu_ttm_fault;
- }
- vma->vm_ops = &virtio_gpu_ttm_vm_ops;
- return 0;
-#else
+
return r;
-#endif
}
static int virtio_gpu_invalidate_caches(struct ttm_bo_device *bdev,
@@ -206,10 +172,6 @@ static const struct ttm_mem_type_manager_func virtio_gpu_bo_manager_func = {
static int virtio_gpu_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
struct ttm_mem_type_manager *man)
{
- struct virtio_gpu_device *vgdev;
-
- vgdev = virtio_gpu_get_vgdev(bdev);
-
switch (type) {
case TTM_PL_SYSTEM:
/* System memory */
@@ -284,42 +246,45 @@ static void virtio_gpu_ttm_io_mem_free(struct ttm_bo_device *bdev,
*/
struct virtio_gpu_ttm_tt {
struct ttm_dma_tt ttm;
- struct virtio_gpu_device *vgdev;
- u64 offset;
+ struct virtio_gpu_object *obj;
};
-static int virtio_gpu_ttm_backend_bind(struct ttm_tt *ttm,
- struct ttm_mem_reg *bo_mem)
+static int virtio_gpu_ttm_tt_bind(struct ttm_tt *ttm,
+ struct ttm_mem_reg *bo_mem)
{
- struct virtio_gpu_ttm_tt *gtt = (void *)ttm;
+ struct virtio_gpu_ttm_tt *gtt =
+ container_of(ttm, struct virtio_gpu_ttm_tt, ttm.ttm);
+ struct virtio_gpu_device *vgdev =
+ virtio_gpu_get_vgdev(gtt->obj->tbo.bdev);
- gtt->offset = (unsigned long)(bo_mem->start << PAGE_SHIFT);
- if (!ttm->num_pages)
- WARN(1, "nothing to bind %lu pages for mreg %p back %p!\n",
- ttm->num_pages, bo_mem, ttm);
-
- /* Not implemented */
+ virtio_gpu_object_attach(vgdev, gtt->obj, NULL);
return 0;
}
-static int virtio_gpu_ttm_backend_unbind(struct ttm_tt *ttm)
+static int virtio_gpu_ttm_tt_unbind(struct ttm_tt *ttm)
{
- /* Not implemented */
+ struct virtio_gpu_ttm_tt *gtt =
+ container_of(ttm, struct virtio_gpu_ttm_tt, ttm.ttm);
+ struct virtio_gpu_device *vgdev =
+ virtio_gpu_get_vgdev(gtt->obj->tbo.bdev);
+
+ virtio_gpu_object_detach(vgdev, gtt->obj);
return 0;
}
-static void virtio_gpu_ttm_backend_destroy(struct ttm_tt *ttm)
+static void virtio_gpu_ttm_tt_destroy(struct ttm_tt *ttm)
{
- struct virtio_gpu_ttm_tt *gtt = (void *)ttm;
+ struct virtio_gpu_ttm_tt *gtt =
+ container_of(ttm, struct virtio_gpu_ttm_tt, ttm.ttm);
ttm_dma_tt_fini(>t->ttm);
kfree(gtt);
}
-static struct ttm_backend_func virtio_gpu_backend_func = {
- .bind = &virtio_gpu_ttm_backend_bind,
- .unbind = &virtio_gpu_ttm_backend_unbind,
- .destroy = &virtio_gpu_ttm_backend_destroy,
+static struct ttm_backend_func virtio_gpu_tt_func = {
+ .bind = &virtio_gpu_ttm_tt_bind,
+ .unbind = &virtio_gpu_ttm_tt_unbind,
+ .destroy = &virtio_gpu_ttm_tt_destroy,
};
static struct ttm_tt *virtio_gpu_ttm_tt_create(struct ttm_buffer_object *bo,
@@ -332,8 +297,8 @@ static struct ttm_tt *virtio_gpu_ttm_tt_create(struct ttm_buffer_object *bo,
gtt = kzalloc(sizeof(struct virtio_gpu_ttm_tt), GFP_KERNEL);
if (gtt == NULL)
return NULL;
- gtt->ttm.ttm.func = &virtio_gpu_backend_func;
- gtt->vgdev = vgdev;
+ gtt->ttm.ttm.func = &virtio_gpu_tt_func;
+ gtt->obj = container_of(bo, struct virtio_gpu_object, tbo);
if (ttm_dma_tt_init(>t->ttm, bo, page_flags)) {
kfree(gtt);
return NULL;
@@ -341,60 +306,11 @@ static struct ttm_tt *virtio_gpu_ttm_tt_create(struct ttm_buffer_object *bo,
return >t->ttm.ttm;
}
-static void virtio_gpu_move_null(struct ttm_buffer_object *bo,
- struct ttm_mem_reg *new_mem)
-{
- struct ttm_mem_reg *old_mem = &bo->mem;
-
- BUG_ON(old_mem->mm_node != NULL);
- *old_mem = *new_mem;
- new_mem->mm_node = NULL;
-}
-
-static int virtio_gpu_bo_move(struct ttm_buffer_object *bo, bool evict,
- struct ttm_operation_ctx *ctx,
- struct ttm_mem_reg *new_mem)
-{
- int ret;
-
- ret = ttm_bo_wait(bo, ctx->interruptible, ctx->no_wait_gpu);
- if (ret)
- return ret;
-
- virtio_gpu_move_null(bo, new_mem);
- return 0;
-}
-
-static void virtio_gpu_bo_move_notify(struct ttm_buffer_object *tbo,
- bool evict,
- struct ttm_mem_reg *new_mem)
-{
- struct virtio_gpu_object *bo;
- struct virtio_gpu_device *vgdev;
-
- bo = container_of(tbo, struct virtio_gpu_object, tbo);
- vgdev = (struct virtio_gpu_device *)bo->gem_base.dev->dev_private;
-
- if (!new_mem || (new_mem->placement & TTM_PL_FLAG_SYSTEM)) {
- if (bo->hw_res_handle)
- virtio_gpu_cmd_resource_inval_backing(vgdev,
- bo->hw_res_handle);
-
- } else if (new_mem->placement & TTM_PL_FLAG_TT) {
- if (bo->hw_res_handle) {
- virtio_gpu_object_attach(vgdev, bo, bo->hw_res_handle,
- NULL);
- }
- }
-}
-
static void virtio_gpu_bo_swap_notify(struct ttm_buffer_object *tbo)
{
struct virtio_gpu_object *bo;
- struct virtio_gpu_device *vgdev;
bo = container_of(tbo, struct virtio_gpu_object, tbo);
- vgdev = (struct virtio_gpu_device *)bo->gem_base.dev->dev_private;
if (bo->pages)
virtio_gpu_object_free_sg_table(bo);
@@ -406,11 +322,9 @@ static struct ttm_bo_driver virtio_gpu_bo_driver = {
.init_mem_type = &virtio_gpu_init_mem_type,
.eviction_valuable = ttm_bo_eviction_valuable,
.evict_flags = &virtio_gpu_evict_flags,
- .move = &virtio_gpu_bo_move,
.verify_access = &virtio_gpu_verify_access,
.io_mem_reserve = &virtio_gpu_ttm_io_mem_reserve,
.io_mem_free = &virtio_gpu_ttm_io_mem_free,
- .move_notify = &virtio_gpu_bo_move_notify,
.swap_notify = &virtio_gpu_bo_swap_notify,
};
diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index 6e45d6b..66011cb 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -28,6 +28,7 @@
#include <drm/drmP.h>
#include "virtgpu_drv.h"
+#include "virtgpu_trace.h"
#include <linux/virtio.h>
#include <linux/virtio_config.h>
#include <linux/virtio_ring.h>
@@ -38,26 +39,6 @@
+ MAX_INLINE_CMD_SIZE \
+ MAX_INLINE_RESP_SIZE)
-void virtio_gpu_resource_id_get(struct virtio_gpu_device *vgdev,
- uint32_t *resid)
-{
- int handle;
-
- idr_preload(GFP_KERNEL);
- spin_lock(&vgdev->resource_idr_lock);
- handle = idr_alloc(&vgdev->resource_idr, NULL, 1, 0, GFP_NOWAIT);
- spin_unlock(&vgdev->resource_idr_lock);
- idr_preload_end();
- *resid = handle;
-}
-
-void virtio_gpu_resource_id_put(struct virtio_gpu_device *vgdev, uint32_t id)
-{
- spin_lock(&vgdev->resource_idr_lock);
- idr_remove(&vgdev->resource_idr, id);
- spin_unlock(&vgdev->resource_idr_lock);
-}
-
void virtio_gpu_ctrl_ack(struct virtqueue *vq)
{
struct drm_device *dev = vq->vdev->priv;
@@ -98,10 +79,9 @@ virtio_gpu_get_vbuf(struct virtio_gpu_device *vgdev,
{
struct virtio_gpu_vbuffer *vbuf;
- vbuf = kmem_cache_alloc(vgdev->vbufs, GFP_KERNEL);
+ vbuf = kmem_cache_zalloc(vgdev->vbufs, GFP_KERNEL);
if (!vbuf)
return ERR_PTR(-ENOMEM);
- memset(vbuf, 0, VBUFFER_SIZE);
BUG_ON(size > MAX_INLINE_CMD_SIZE);
vbuf->buf = (void *)vbuf + sizeof(*vbuf);
@@ -174,7 +154,7 @@ static void free_vbuf(struct virtio_gpu_device *vgdev,
{
if (vbuf->resp_size > MAX_INLINE_RESP_SIZE)
kfree(vbuf->resp_buf);
- kfree(vbuf->data_buf);
+ kvfree(vbuf->data_buf);
kmem_cache_free(vgdev->vbufs, vbuf);
}
@@ -213,8 +193,19 @@ void virtio_gpu_dequeue_ctrl_func(struct work_struct *work)
list_for_each_entry_safe(entry, tmp, &reclaim_list, list) {
resp = (struct virtio_gpu_ctrl_hdr *)entry->resp_buf;
- if (resp->type != cpu_to_le32(VIRTIO_GPU_RESP_OK_NODATA))
- DRM_DEBUG("response 0x%x\n", le32_to_cpu(resp->type));
+
+ trace_virtio_gpu_cmd_response(vgdev->ctrlq.vq, resp);
+
+ if (resp->type != cpu_to_le32(VIRTIO_GPU_RESP_OK_NODATA)) {
+ if (resp->type >= cpu_to_le32(VIRTIO_GPU_RESP_ERR_UNSPEC)) {
+ struct virtio_gpu_ctrl_hdr *cmd;
+ cmd = (struct virtio_gpu_ctrl_hdr *)entry->buf;
+ DRM_ERROR("response 0x%x (command 0x%x)\n",
+ le32_to_cpu(resp->type),
+ le32_to_cpu(cmd->type));
+ } else
+ DRM_DEBUG("response 0x%x\n", le32_to_cpu(resp->type));
+ }
if (resp->flags & cpu_to_le32(VIRTIO_GPU_FLAG_FENCE)) {
u64 f = le64_to_cpu(resp->fence_id);
@@ -260,13 +251,54 @@ void virtio_gpu_dequeue_cursor_func(struct work_struct *work)
wake_up(&vgdev->cursorq.ack_queue);
}
+/* Create sg_table from a vmalloc'd buffer. */
+static struct sg_table *vmalloc_to_sgt(char *data, uint32_t size, int *sg_ents)
+{
+ int ret, s, i;
+ struct sg_table *sgt;
+ struct scatterlist *sg;
+ struct page *pg;
+
+ if (WARN_ON(!PAGE_ALIGNED(data)))
+ return NULL;
+
+ sgt = kmalloc(sizeof(*sgt), GFP_KERNEL);
+ if (!sgt)
+ return NULL;
+
+ *sg_ents = DIV_ROUND_UP(size, PAGE_SIZE);
+ ret = sg_alloc_table(sgt, *sg_ents, GFP_KERNEL);
+ if (ret) {
+ kfree(sgt);
+ return NULL;
+ }
+
+ for_each_sg(sgt->sgl, sg, *sg_ents, i) {
+ pg = vmalloc_to_page(data);
+ if (!pg) {
+ sg_free_table(sgt);
+ kfree(sgt);
+ return NULL;
+ }
+
+ s = min_t(int, PAGE_SIZE, size);
+ sg_set_page(sg, pg, s, 0);
+
+ size -= s;
+ data += s;
+ }
+
+ return sgt;
+}
+
static int virtio_gpu_queue_ctrl_buffer_locked(struct virtio_gpu_device *vgdev,
- struct virtio_gpu_vbuffer *vbuf)
+ struct virtio_gpu_vbuffer *vbuf,
+ struct scatterlist *vout)
__releases(&vgdev->ctrlq.qlock)
__acquires(&vgdev->ctrlq.qlock)
{
struct virtqueue *vq = vgdev->ctrlq.vq;
- struct scatterlist *sgs[3], vcmd, vout, vresp;
+ struct scatterlist *sgs[3], vcmd, vresp;
int outcnt = 0, incnt = 0;
int ret;
@@ -277,9 +309,8 @@ static int virtio_gpu_queue_ctrl_buffer_locked(struct virtio_gpu_device *vgdev,
sgs[outcnt + incnt] = &vcmd;
outcnt++;
- if (vbuf->data_size) {
- sg_init_one(&vout, vbuf->data_buf, vbuf->data_size);
- sgs[outcnt + incnt] = &vout;
+ if (vout) {
+ sgs[outcnt + incnt] = vout;
outcnt++;
}
@@ -297,6 +328,9 @@ static int virtio_gpu_queue_ctrl_buffer_locked(struct virtio_gpu_device *vgdev,
spin_lock(&vgdev->ctrlq.qlock);
goto retry;
} else {
+ trace_virtio_gpu_cmd_queue(vq,
+ (struct virtio_gpu_ctrl_hdr *)vbuf->buf);
+
virtqueue_kick(vq);
}
@@ -305,24 +339,30 @@ static int virtio_gpu_queue_ctrl_buffer_locked(struct virtio_gpu_device *vgdev,
return ret;
}
-static int virtio_gpu_queue_ctrl_buffer(struct virtio_gpu_device *vgdev,
- struct virtio_gpu_vbuffer *vbuf)
-{
- int rc;
-
- spin_lock(&vgdev->ctrlq.qlock);
- rc = virtio_gpu_queue_ctrl_buffer_locked(vgdev, vbuf);
- spin_unlock(&vgdev->ctrlq.qlock);
- return rc;
-}
-
static int virtio_gpu_queue_fenced_ctrl_buffer(struct virtio_gpu_device *vgdev,
struct virtio_gpu_vbuffer *vbuf,
struct virtio_gpu_ctrl_hdr *hdr,
- struct virtio_gpu_fence **fence)
+ struct virtio_gpu_fence *fence)
{
struct virtqueue *vq = vgdev->ctrlq.vq;
+ struct scatterlist *vout = NULL, sg;
+ struct sg_table *sgt = NULL;
int rc;
+ int outcnt = 0;
+
+ if (vbuf->data_size) {
+ if (is_vmalloc_addr(vbuf->data_buf)) {
+ sgt = vmalloc_to_sgt(vbuf->data_buf, vbuf->data_size,
+ &outcnt);
+ if (!sgt)
+ return -ENOMEM;
+ vout = sgt->sgl;
+ } else {
+ sg_init_one(&sg, vbuf->data_buf, vbuf->data_size);
+ vout = &sg;
+ outcnt = 1;
+ }
+ }
again:
spin_lock(&vgdev->ctrlq.qlock);
@@ -335,19 +375,31 @@ static int virtio_gpu_queue_fenced_ctrl_buffer(struct virtio_gpu_device *vgdev,
* to wait for free space, which can result in fence ids being
* submitted out-of-order.
*/
- if (vq->num_free < 3) {
+ if (vq->num_free < 2 + outcnt) {
spin_unlock(&vgdev->ctrlq.qlock);
wait_event(vgdev->ctrlq.ack_queue, vq->num_free >= 3);
goto again;
}
- if (fence)
+ if (hdr && fence)
virtio_gpu_fence_emit(vgdev, hdr, fence);
- rc = virtio_gpu_queue_ctrl_buffer_locked(vgdev, vbuf);
+ rc = virtio_gpu_queue_ctrl_buffer_locked(vgdev, vbuf, vout);
spin_unlock(&vgdev->ctrlq.qlock);
+
+ if (sgt) {
+ sg_free_table(sgt);
+ kfree(sgt);
+ }
+
return rc;
}
+static int virtio_gpu_queue_ctrl_buffer(struct virtio_gpu_device *vgdev,
+ struct virtio_gpu_vbuffer *vbuf)
+{
+ return virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, NULL, NULL);
+}
+
static int virtio_gpu_queue_cursor(struct virtio_gpu_device *vgdev,
struct virtio_gpu_vbuffer *vbuf)
{
@@ -372,6 +424,9 @@ static int virtio_gpu_queue_cursor(struct virtio_gpu_device *vgdev,
spin_lock(&vgdev->cursorq.qlock);
goto retry;
} else {
+ trace_virtio_gpu_cmd_queue(vq,
+ (struct virtio_gpu_ctrl_hdr *)vbuf->buf);
+
virtqueue_kick(vq);
}
@@ -388,10 +443,9 @@ static int virtio_gpu_queue_cursor(struct virtio_gpu_device *vgdev,
/* create a basic resource */
void virtio_gpu_cmd_create_resource(struct virtio_gpu_device *vgdev,
- uint32_t resource_id,
- uint32_t format,
- uint32_t width,
- uint32_t height)
+ struct virtio_gpu_object *bo,
+ struct virtio_gpu_object_params *params,
+ struct virtio_gpu_fence *fence)
{
struct virtio_gpu_resource_create_2d *cmd_p;
struct virtio_gpu_vbuffer *vbuf;
@@ -400,12 +454,13 @@ void virtio_gpu_cmd_create_resource(struct virtio_gpu_device *vgdev,
memset(cmd_p, 0, sizeof(*cmd_p));
cmd_p->hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_RESOURCE_CREATE_2D);
- cmd_p->resource_id = cpu_to_le32(resource_id);
- cmd_p->format = cpu_to_le32(format);
- cmd_p->width = cpu_to_le32(width);
- cmd_p->height = cpu_to_le32(height);
+ cmd_p->resource_id = cpu_to_le32(bo->hw_res_handle);
+ cmd_p->format = cpu_to_le32(params->format);
+ cmd_p->width = cpu_to_le32(params->width);
+ cmd_p->height = cpu_to_le32(params->height);
- virtio_gpu_queue_ctrl_buffer(vgdev, vbuf);
+ virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, &cmd_p->hdr, fence);
+ bo->created = true;
}
void virtio_gpu_cmd_unref_resource(struct virtio_gpu_device *vgdev,
@@ -423,8 +478,9 @@ void virtio_gpu_cmd_unref_resource(struct virtio_gpu_device *vgdev,
virtio_gpu_queue_ctrl_buffer(vgdev, vbuf);
}
-void virtio_gpu_cmd_resource_inval_backing(struct virtio_gpu_device *vgdev,
- uint32_t resource_id)
+static void virtio_gpu_cmd_resource_inval_backing(struct virtio_gpu_device *vgdev,
+ uint32_t resource_id,
+ struct virtio_gpu_fence *fence)
{
struct virtio_gpu_resource_detach_backing *cmd_p;
struct virtio_gpu_vbuffer *vbuf;
@@ -435,7 +491,7 @@ void virtio_gpu_cmd_resource_inval_backing(struct virtio_gpu_device *vgdev,
cmd_p->hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING);
cmd_p->resource_id = cpu_to_le32(resource_id);
- virtio_gpu_queue_ctrl_buffer(vgdev, vbuf);
+ virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, &cmd_p->hdr, fence);
}
void virtio_gpu_cmd_set_scanout(struct virtio_gpu_device *vgdev,
@@ -482,19 +538,26 @@ void virtio_gpu_cmd_resource_flush(struct virtio_gpu_device *vgdev,
}
void virtio_gpu_cmd_transfer_to_host_2d(struct virtio_gpu_device *vgdev,
- uint32_t resource_id, uint64_t offset,
+ struct virtio_gpu_object *bo,
+ uint64_t offset,
__le32 width, __le32 height,
__le32 x, __le32 y,
- struct virtio_gpu_fence **fence)
+ struct virtio_gpu_fence *fence)
{
struct virtio_gpu_transfer_to_host_2d *cmd_p;
struct virtio_gpu_vbuffer *vbuf;
+ bool use_dma_api = !virtio_has_iommu_quirk(vgdev->vdev);
+
+ if (use_dma_api)
+ dma_sync_sg_for_device(vgdev->vdev->dev.parent,
+ bo->pages->sgl, bo->pages->nents,
+ DMA_TO_DEVICE);
cmd_p = virtio_gpu_alloc_cmd(vgdev, &vbuf, sizeof(*cmd_p));
memset(cmd_p, 0, sizeof(*cmd_p));
cmd_p->hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_TRANSFER_TO_HOST_2D);
- cmd_p->resource_id = cpu_to_le32(resource_id);
+ cmd_p->resource_id = cpu_to_le32(bo->hw_res_handle);
cmd_p->offset = cpu_to_le64(offset);
cmd_p->r.width = width;
cmd_p->r.height = height;
@@ -509,7 +572,7 @@ virtio_gpu_cmd_resource_attach_backing(struct virtio_gpu_device *vgdev,
uint32_t resource_id,
struct virtio_gpu_mem_entry *ents,
uint32_t nents,
- struct virtio_gpu_fence **fence)
+ struct virtio_gpu_fence *fence)
{
struct virtio_gpu_resource_attach_backing *cmd_p;
struct virtio_gpu_vbuffer *vbuf;
@@ -599,6 +662,45 @@ static void virtio_gpu_cmd_capset_cb(struct virtio_gpu_device *vgdev,
}
}
spin_unlock(&vgdev->display_info_lock);
+ wake_up_all(&vgdev->resp_wq);
+}
+
+static int virtio_get_edid_block(void *data, u8 *buf,
+ unsigned int block, size_t len)
+{
+ struct virtio_gpu_resp_edid *resp = data;
+ size_t start = block * EDID_LENGTH;
+
+ if (start + len > le32_to_cpu(resp->size))
+ return -1;
+ memcpy(buf, resp->edid + start, len);
+ return 0;
+}
+
+static void virtio_gpu_cmd_get_edid_cb(struct virtio_gpu_device *vgdev,
+ struct virtio_gpu_vbuffer *vbuf)
+{
+ struct virtio_gpu_cmd_get_edid *cmd =
+ (struct virtio_gpu_cmd_get_edid *)vbuf->buf;
+ struct virtio_gpu_resp_edid *resp =
+ (struct virtio_gpu_resp_edid *)vbuf->resp_buf;
+ uint32_t scanout = le32_to_cpu(cmd->scanout);
+ struct virtio_gpu_output *output;
+ struct edid *new_edid, *old_edid;
+
+ if (scanout >= vgdev->num_scanouts)
+ return;
+ output = vgdev->outputs + scanout;
+
+ new_edid = drm_do_get_edid(&output->conn, virtio_get_edid_block, resp);
+ drm_connector_update_edid_property(&output->conn, new_edid);
+
+ spin_lock(&vgdev->display_info_lock);
+ old_edid = output->edid;
+ output->edid = new_edid;
+ spin_unlock(&vgdev->display_info_lock);
+
+ kfree(old_edid);
wake_up(&vgdev->resp_wq);
}
@@ -656,8 +758,11 @@ int virtio_gpu_cmd_get_capset(struct virtio_gpu_device *vgdev,
struct virtio_gpu_vbuffer *vbuf;
int max_size;
struct virtio_gpu_drv_cap_cache *cache_ent;
+ struct virtio_gpu_drv_cap_cache *search_ent;
void *resp_buf;
+ *cache_p = NULL;
+
if (idx >= vgdev->num_capsets)
return -EINVAL;
@@ -688,9 +793,26 @@ int virtio_gpu_cmd_get_capset(struct virtio_gpu_device *vgdev,
atomic_set(&cache_ent->is_valid, 0);
cache_ent->size = max_size;
spin_lock(&vgdev->display_info_lock);
- list_add_tail(&cache_ent->head, &vgdev->cap_cache);
+ /* Search while under lock in case it was added by another task. */
+ list_for_each_entry(search_ent, &vgdev->cap_cache, head) {
+ if (search_ent->id == vgdev->capsets[idx].id &&
+ search_ent->version == version) {
+ *cache_p = search_ent;
+ break;
+ }
+ }
+ if (!*cache_p)
+ list_add_tail(&cache_ent->head, &vgdev->cap_cache);
spin_unlock(&vgdev->display_info_lock);
+ if (*cache_p) {
+ /* Entry was found, so free everything that was just created. */
+ kfree(resp_buf);
+ kfree(cache_ent->caps_cache);
+ kfree(cache_ent);
+ return 0;
+ }
+
cmd_p = virtio_gpu_alloc_cmd_resp
(vgdev, &virtio_gpu_cmd_capset_cb, &vbuf, sizeof(*cmd_p),
sizeof(struct virtio_gpu_resp_capset) + max_size,
@@ -704,6 +826,34 @@ int virtio_gpu_cmd_get_capset(struct virtio_gpu_device *vgdev,
return 0;
}
+int virtio_gpu_cmd_get_edids(struct virtio_gpu_device *vgdev)
+{
+ struct virtio_gpu_cmd_get_edid *cmd_p;
+ struct virtio_gpu_vbuffer *vbuf;
+ void *resp_buf;
+ int scanout;
+
+ if (WARN_ON(!vgdev->has_edid))
+ return -EINVAL;
+
+ for (scanout = 0; scanout < vgdev->num_scanouts; scanout++) {
+ resp_buf = kzalloc(sizeof(struct virtio_gpu_resp_edid),
+ GFP_KERNEL);
+ if (!resp_buf)
+ return -ENOMEM;
+
+ cmd_p = virtio_gpu_alloc_cmd_resp
+ (vgdev, &virtio_gpu_cmd_get_edid_cb, &vbuf,
+ sizeof(*cmd_p), sizeof(struct virtio_gpu_resp_edid),
+ resp_buf);
+ cmd_p->hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_GET_EDID);
+ cmd_p->scanout = cpu_to_le32(scanout);
+ virtio_gpu_queue_ctrl_buffer(vgdev, vbuf);
+ }
+
+ return 0;
+}
+
void virtio_gpu_cmd_context_create(struct virtio_gpu_device *vgdev, uint32_t id,
uint32_t nlen, const char *name)
{
@@ -770,8 +920,9 @@ void virtio_gpu_cmd_context_detach_resource(struct virtio_gpu_device *vgdev,
void
virtio_gpu_cmd_resource_create_3d(struct virtio_gpu_device *vgdev,
- struct virtio_gpu_resource_create_3d *rc_3d,
- struct virtio_gpu_fence **fence)
+ struct virtio_gpu_object *bo,
+ struct virtio_gpu_object_params *params,
+ struct virtio_gpu_fence *fence)
{
struct virtio_gpu_resource_create_3d *cmd_p;
struct virtio_gpu_vbuffer *vbuf;
@@ -779,28 +930,46 @@ virtio_gpu_cmd_resource_create_3d(struct virtio_gpu_device *vgdev,
cmd_p = virtio_gpu_alloc_cmd(vgdev, &vbuf, sizeof(*cmd_p));
memset(cmd_p, 0, sizeof(*cmd_p));
- *cmd_p = *rc_3d;
cmd_p->hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_RESOURCE_CREATE_3D);
- cmd_p->hdr.flags = 0;
+ cmd_p->resource_id = cpu_to_le32(bo->hw_res_handle);
+ cmd_p->format = cpu_to_le32(params->format);
+ cmd_p->width = cpu_to_le32(params->width);
+ cmd_p->height = cpu_to_le32(params->height);
+
+ cmd_p->target = cpu_to_le32(params->target);
+ cmd_p->bind = cpu_to_le32(params->bind);
+ cmd_p->depth = cpu_to_le32(params->depth);
+ cmd_p->array_size = cpu_to_le32(params->array_size);
+ cmd_p->last_level = cpu_to_le32(params->last_level);
+ cmd_p->nr_samples = cpu_to_le32(params->nr_samples);
+ cmd_p->flags = cpu_to_le32(params->flags);
virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, &cmd_p->hdr, fence);
+ bo->created = true;
}
void virtio_gpu_cmd_transfer_to_host_3d(struct virtio_gpu_device *vgdev,
- uint32_t resource_id, uint32_t ctx_id,
+ struct virtio_gpu_object *bo,
+ uint32_t ctx_id,
uint64_t offset, uint32_t level,
struct virtio_gpu_box *box,
- struct virtio_gpu_fence **fence)
+ struct virtio_gpu_fence *fence)
{
struct virtio_gpu_transfer_host_3d *cmd_p;
struct virtio_gpu_vbuffer *vbuf;
+ bool use_dma_api = !virtio_has_iommu_quirk(vgdev->vdev);
+
+ if (use_dma_api)
+ dma_sync_sg_for_device(vgdev->vdev->dev.parent,
+ bo->pages->sgl, bo->pages->nents,
+ DMA_TO_DEVICE);
cmd_p = virtio_gpu_alloc_cmd(vgdev, &vbuf, sizeof(*cmd_p));
memset(cmd_p, 0, sizeof(*cmd_p));
cmd_p->hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_TRANSFER_TO_HOST_3D);
cmd_p->hdr.ctx_id = cpu_to_le32(ctx_id);
- cmd_p->resource_id = cpu_to_le32(resource_id);
+ cmd_p->resource_id = cpu_to_le32(bo->hw_res_handle);
cmd_p->box = *box;
cmd_p->offset = cpu_to_le64(offset);
cmd_p->level = cpu_to_le32(level);
@@ -812,7 +981,7 @@ void virtio_gpu_cmd_transfer_from_host_3d(struct virtio_gpu_device *vgdev,
uint32_t resource_id, uint32_t ctx_id,
uint64_t offset, uint32_t level,
struct virtio_gpu_box *box,
- struct virtio_gpu_fence **fence)
+ struct virtio_gpu_fence *fence)
{
struct virtio_gpu_transfer_host_3d *cmd_p;
struct virtio_gpu_vbuffer *vbuf;
@@ -832,7 +1001,7 @@ void virtio_gpu_cmd_transfer_from_host_3d(struct virtio_gpu_device *vgdev,
void virtio_gpu_cmd_submit(struct virtio_gpu_device *vgdev,
void *data, uint32_t data_size,
- uint32_t ctx_id, struct virtio_gpu_fence **fence)
+ uint32_t ctx_id, struct virtio_gpu_fence *fence)
{
struct virtio_gpu_cmd_submit *cmd_p;
struct virtio_gpu_vbuffer *vbuf;
@@ -852,12 +1021,15 @@ void virtio_gpu_cmd_submit(struct virtio_gpu_device *vgdev,
int virtio_gpu_object_attach(struct virtio_gpu_device *vgdev,
struct virtio_gpu_object *obj,
- uint32_t resource_id,
- struct virtio_gpu_fence **fence)
+ struct virtio_gpu_fence *fence)
{
+ bool use_dma_api = !virtio_has_iommu_quirk(vgdev->vdev);
struct virtio_gpu_mem_entry *ents;
struct scatterlist *sg;
- int si;
+ int si, nents;
+
+ if (WARN_ON_ONCE(!obj->created))
+ return -EINVAL;
if (!obj->pages) {
int ret;
@@ -867,28 +1039,59 @@ int virtio_gpu_object_attach(struct virtio_gpu_device *vgdev,
return ret;
}
+ if (use_dma_api) {
+ obj->mapped = dma_map_sg(vgdev->vdev->dev.parent,
+ obj->pages->sgl, obj->pages->nents,
+ DMA_TO_DEVICE);
+ nents = obj->mapped;
+ } else {
+ nents = obj->pages->nents;
+ }
+
/* gets freed when the ring has consumed it */
- ents = kvmalloc_array(obj->pages->nents,
- sizeof(struct virtio_gpu_mem_entry),
- GFP_KERNEL);
+ ents = kmalloc_array(nents, sizeof(struct virtio_gpu_mem_entry),
+ GFP_KERNEL);
if (!ents) {
DRM_ERROR("failed to allocate ent list\n");
return -ENOMEM;
}
- for_each_sg(obj->pages->sgl, sg, obj->pages->nents, si) {
- ents[si].addr = cpu_to_le64(sg_phys(sg));
+ for_each_sg(obj->pages->sgl, sg, nents, si) {
+ ents[si].addr = cpu_to_le64(use_dma_api
+ ? sg_dma_address(sg)
+ : sg_phys(sg));
ents[si].length = cpu_to_le32(sg->length);
ents[si].padding = 0;
}
- virtio_gpu_cmd_resource_attach_backing(vgdev, resource_id,
- ents, obj->pages->nents,
+ virtio_gpu_cmd_resource_attach_backing(vgdev, obj->hw_res_handle,
+ ents, nents,
fence);
- obj->hw_res_handle = resource_id;
return 0;
}
+void virtio_gpu_object_detach(struct virtio_gpu_device *vgdev,
+ struct virtio_gpu_object *obj)
+{
+ bool use_dma_api = !virtio_has_iommu_quirk(vgdev->vdev);
+
+ if (use_dma_api && obj->mapped) {
+ struct virtio_gpu_fence *fence = virtio_gpu_fence_alloc(vgdev);
+ /* detach backing and wait for the host process it ... */
+ virtio_gpu_cmd_resource_inval_backing(vgdev, obj->hw_res_handle, fence);
+ dma_fence_wait(&fence->f, true);
+ dma_fence_put(&fence->f);
+
+ /* ... then tear down iommu mappings */
+ dma_unmap_sg(vgdev->vdev->dev.parent,
+ obj->pages->sgl, obj->mapped,
+ DMA_TO_DEVICE);
+ obj->mapped = 0;
+ } else {
+ virtio_gpu_cmd_resource_inval_backing(vgdev, obj->hw_res_handle, NULL);
+ }
+}
+
void virtio_gpu_cursor_ping(struct virtio_gpu_device *vgdev,
struct virtio_gpu_output *output)
{
diff --git a/drivers/gpu/trace/Kconfig b/drivers/gpu/trace/Kconfig
new file mode 100644
index 0000000..c24e9ed
--- /dev/null
+++ b/drivers/gpu/trace/Kconfig
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+config TRACE_GPU_MEM
+ bool
diff --git a/drivers/gpu/trace/Makefile b/drivers/gpu/trace/Makefile
new file mode 100644
index 0000000..b70fbdc
--- /dev/null
+++ b/drivers/gpu/trace/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
+
+obj-$(CONFIG_TRACE_GPU_MEM) += trace_gpu_mem.o
diff --git a/drivers/gpu/trace/trace_gpu_mem.c b/drivers/gpu/trace/trace_gpu_mem.c
new file mode 100644
index 0000000..01e8558
--- /dev/null
+++ b/drivers/gpu/trace/trace_gpu_mem.c
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * GPU memory trace points
+ *
+ * Copyright (C) 2020 Google, Inc.
+ */
+
+#include <linux/module.h>
+
+#define CREATE_TRACE_POINTS
+#include <trace/events/gpu_mem.h>
+
+EXPORT_TRACEPOINT_SYMBOL(gpu_mem_total);
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 61e1953..ea6c5ac 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -652,6 +652,17 @@
To compile this driver as a module, choose M here: the
module will be called hid-multitouch.
+config HID_NINTENDO
+ tristate "Nintendo Joy-Con and Pro Controller support"
+ depends on HID
+ help
+ Adds support for the Nintendo Switch Joy-Cons and Pro Controller.
+ All controllers support bluetooth, and the Pro Controller also supports
+ its USB mode.
+
+ To compile this driver as a module, choose M here: the
+ module will be called hid-nintendo.
+
config HID_NTI
tristate "NTI keyboard adapters"
---help---
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index bd7ac53..487a784 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -69,6 +69,7 @@
obj-$(CONFIG_HID_MICROSOFT) += hid-microsoft.o
obj-$(CONFIG_HID_MONTEREY) += hid-monterey.o
obj-$(CONFIG_HID_MULTITOUCH) += hid-multitouch.o
+obj-$(CONFIG_HID_NINTENDO) += hid-nintendo.o
obj-$(CONFIG_HID_NTI) += hid-nti.o
obj-$(CONFIG_HID_NTRIG) += hid-ntrig.o
obj-$(CONFIG_HID_ORTEK) += hid-ortek.o
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index ee5dce8..4393510 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -865,6 +865,9 @@
#define USB_VENDOR_ID_NINTENDO 0x057e
#define USB_DEVICE_ID_NINTENDO_WIIMOTE 0x0306
#define USB_DEVICE_ID_NINTENDO_WIIMOTE2 0x0330
+#define USB_DEVICE_ID_NINTENDO_JOYCONL 0x2006
+#define USB_DEVICE_ID_NINTENDO_JOYCONR 0x2007
+#define USB_DEVICE_ID_NINTENDO_PROCON 0x2009
#define USB_VENDOR_ID_NOVATEK 0x0603
#define USB_DEVICE_ID_NOVATEK_PCT 0x0600
diff --git a/drivers/hid/hid-nintendo.c b/drivers/hid/hid-nintendo.c
new file mode 100644
index 0000000..3695b96
--- /dev/null
+++ b/drivers/hid/hid-nintendo.c
@@ -0,0 +1,820 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * HID driver for Nintendo Switch Joy-Cons and Pro Controllers
+ *
+ * Copyright (c) 2019 Daniel J. Ogorchock <djogorchock@gmail.com>
+ *
+ * The following resources/projects were referenced for this driver:
+ * https://github.com/dekuNukem/Nintendo_Switch_Reverse_Engineering
+ * https://gitlab.com/pjranki/joycon-linux-kernel (Peter Rankin)
+ * https://github.com/FrotBot/SwitchProConLinuxUSB
+ * https://github.com/MTCKC/ProconXInput
+ * hid-wiimote kernel hid driver
+ * hid-logitech-hidpp driver
+ *
+ * This driver supports the Nintendo Switch Joy-Cons and Pro Controllers. The
+ * Pro Controllers can either be used over USB or Bluetooth.
+ *
+ * The driver will retrieve the factory calibration info from the controllers,
+ * so little to no user calibration should be required.
+ *
+ */
+
+#include "hid-ids.h"
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+
+/*
+ * Reference the url below for the following HID report defines:
+ * https://github.com/dekuNukem/Nintendo_Switch_Reverse_Engineering
+ */
+
+/* Output Reports */
+static const u8 JC_OUTPUT_RUMBLE_AND_SUBCMD = 0x01;
+static const u8 JC_OUTPUT_FW_UPDATE_PKT = 0x03;
+static const u8 JC_OUTPUT_RUMBLE_ONLY = 0x10;
+static const u8 JC_OUTPUT_MCU_DATA = 0x11;
+static const u8 JC_OUTPUT_USB_CMD = 0x80;
+
+/* Subcommand IDs */
+static const u8 JC_SUBCMD_STATE /*= 0x00*/;
+static const u8 JC_SUBCMD_MANUAL_BT_PAIRING = 0x01;
+static const u8 JC_SUBCMD_REQ_DEV_INFO = 0x02;
+static const u8 JC_SUBCMD_SET_REPORT_MODE = 0x03;
+static const u8 JC_SUBCMD_TRIGGERS_ELAPSED = 0x04;
+static const u8 JC_SUBCMD_GET_PAGE_LIST_STATE = 0x05;
+static const u8 JC_SUBCMD_SET_HCI_STATE = 0x06;
+static const u8 JC_SUBCMD_RESET_PAIRING_INFO = 0x07;
+static const u8 JC_SUBCMD_LOW_POWER_MODE = 0x08;
+static const u8 JC_SUBCMD_SPI_FLASH_READ = 0x10;
+static const u8 JC_SUBCMD_SPI_FLASH_WRITE = 0x11;
+static const u8 JC_SUBCMD_RESET_MCU = 0x20;
+static const u8 JC_SUBCMD_SET_MCU_CONFIG = 0x21;
+static const u8 JC_SUBCMD_SET_MCU_STATE = 0x22;
+static const u8 JC_SUBCMD_SET_PLAYER_LIGHTS = 0x30;
+static const u8 JC_SUBCMD_GET_PLAYER_LIGHTS = 0x31;
+static const u8 JC_SUBCMD_SET_HOME_LIGHT = 0x38;
+static const u8 JC_SUBCMD_ENABLE_IMU = 0x40;
+static const u8 JC_SUBCMD_SET_IMU_SENSITIVITY = 0x41;
+static const u8 JC_SUBCMD_WRITE_IMU_REG = 0x42;
+static const u8 JC_SUBCMD_READ_IMU_REG = 0x43;
+static const u8 JC_SUBCMD_ENABLE_VIBRATION = 0x48;
+static const u8 JC_SUBCMD_GET_REGULATED_VOLTAGE = 0x50;
+
+/* Input Reports */
+static const u8 JC_INPUT_BUTTON_EVENT = 0x3F;
+static const u8 JC_INPUT_SUBCMD_REPLY = 0x21;
+static const u8 JC_INPUT_IMU_DATA = 0x30;
+static const u8 JC_INPUT_MCU_DATA = 0x31;
+static const u8 JC_INPUT_USB_RESPONSE = 0x81;
+
+/* Feature Reports */
+static const u8 JC_FEATURE_LAST_SUBCMD = 0x02;
+static const u8 JC_FEATURE_OTA_FW_UPGRADE = 0x70;
+static const u8 JC_FEATURE_SETUP_MEM_READ = 0x71;
+static const u8 JC_FEATURE_MEM_READ = 0x72;
+static const u8 JC_FEATURE_ERASE_MEM_SECTOR = 0x73;
+static const u8 JC_FEATURE_MEM_WRITE = 0x74;
+static const u8 JC_FEATURE_LAUNCH = 0x75;
+
+/* USB Commands */
+static const u8 JC_USB_CMD_CONN_STATUS = 0x01;
+static const u8 JC_USB_CMD_HANDSHAKE = 0x02;
+static const u8 JC_USB_CMD_BAUDRATE_3M = 0x03;
+static const u8 JC_USB_CMD_NO_TIMEOUT = 0x04;
+static const u8 JC_USB_CMD_EN_TIMEOUT = 0x05;
+static const u8 JC_USB_RESET = 0x06;
+static const u8 JC_USB_PRE_HANDSHAKE = 0x91;
+static const u8 JC_USB_SEND_UART = 0x92;
+
+/* SPI storage addresses of factory calibration data */
+static const u16 JC_CAL_DATA_START = 0x603d;
+static const u16 JC_CAL_DATA_END = 0x604e;
+#define JC_CAL_DATA_SIZE (JC_CAL_DATA_END - JC_CAL_DATA_START + 1)
+
+
+/* The raw analog joystick values will be mapped in terms of this magnitude */
+static const u16 JC_MAX_STICK_MAG = 32767;
+static const u16 JC_STICK_FUZZ = 250;
+static const u16 JC_STICK_FLAT = 500;
+
+/* States for controller state machine */
+enum joycon_ctlr_state {
+ JOYCON_CTLR_STATE_INIT,
+ JOYCON_CTLR_STATE_READ,
+};
+
+struct joycon_stick_cal {
+ s32 max;
+ s32 min;
+ s32 center;
+};
+
+/*
+ * All the controller's button values are stored in a u32.
+ * They can be accessed with bitwise ANDs.
+ */
+static const u32 JC_BTN_Y = BIT(0);
+static const u32 JC_BTN_X = BIT(1);
+static const u32 JC_BTN_B = BIT(2);
+static const u32 JC_BTN_A = BIT(3);
+static const u32 JC_BTN_SR_R = BIT(4);
+static const u32 JC_BTN_SL_R = BIT(5);
+static const u32 JC_BTN_R = BIT(6);
+static const u32 JC_BTN_ZR = BIT(7);
+static const u32 JC_BTN_MINUS = BIT(8);
+static const u32 JC_BTN_PLUS = BIT(9);
+static const u32 JC_BTN_RSTICK = BIT(10);
+static const u32 JC_BTN_LSTICK = BIT(11);
+static const u32 JC_BTN_HOME = BIT(12);
+static const u32 JC_BTN_CAP = BIT(13); /* capture button */
+static const u32 JC_BTN_DOWN = BIT(16);
+static const u32 JC_BTN_UP = BIT(17);
+static const u32 JC_BTN_RIGHT = BIT(18);
+static const u32 JC_BTN_LEFT = BIT(19);
+static const u32 JC_BTN_SR_L = BIT(20);
+static const u32 JC_BTN_SL_L = BIT(21);
+static const u32 JC_BTN_L = BIT(22);
+static const u32 JC_BTN_ZL = BIT(23);
+
+enum joycon_msg_type {
+ JOYCON_MSG_TYPE_NONE,
+ JOYCON_MSG_TYPE_USB,
+ JOYCON_MSG_TYPE_SUBCMD,
+};
+
+struct joycon_subcmd_request {
+ u8 output_id; /* must be 0x01 for subcommand, 0x10 for rumble only */
+ u8 packet_num; /* incremented every send */
+ u8 rumble_data[8];
+ u8 subcmd_id;
+ u8 data[0]; /* length depends on the subcommand */
+} __packed;
+
+struct joycon_subcmd_reply {
+ u8 ack; /* MSB 1 for ACK, 0 for NACK */
+ u8 id; /* id of requested subcmd */
+ u8 data[0]; /* will be at most 35 bytes */
+} __packed;
+
+struct joycon_input_report {
+ u8 id;
+ u8 timer;
+ u8 bat_con; /* battery and connection info */
+ u8 button_status[3];
+ u8 left_stick[3];
+ u8 right_stick[3];
+ u8 vibrator_report;
+
+ /*
+ * If support for firmware updates, gyroscope data, and/or NFC/IR
+ * are added in the future, this can be swapped for a union.
+ */
+ struct joycon_subcmd_reply reply;
+} __packed;
+
+#define JC_MAX_RESP_SIZE (sizeof(struct joycon_input_report) + 35)
+
+/* Each physical controller is associated with a joycon_ctlr struct */
+struct joycon_ctlr {
+ struct hid_device *hdev;
+ struct input_dev *input;
+ enum joycon_ctlr_state ctlr_state;
+
+ /* The following members are used for synchronous sends/receives */
+ enum joycon_msg_type msg_type;
+ u8 subcmd_num;
+ struct mutex output_mutex;
+ u8 input_buf[JC_MAX_RESP_SIZE];
+ wait_queue_head_t wait;
+ bool received_resp;
+ u8 usb_ack_match;
+ u8 subcmd_ack_match;
+
+ /* factory calibration data */
+ struct joycon_stick_cal left_stick_cal_x;
+ struct joycon_stick_cal left_stick_cal_y;
+ struct joycon_stick_cal right_stick_cal_x;
+ struct joycon_stick_cal right_stick_cal_y;
+
+};
+
+static int __joycon_hid_send(struct hid_device *hdev, u8 *data, size_t len)
+{
+ u8 *buf;
+ int ret;
+
+ buf = kmemdup(data, len, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+ ret = hid_hw_output_report(hdev, buf, len);
+ kfree(buf);
+ if (ret < 0)
+ hid_dbg(hdev, "Failed to send output report ret=%d\n", ret);
+ return ret;
+}
+
+static int joycon_hid_send_sync(struct joycon_ctlr *ctlr, u8 *data, size_t len)
+{
+ int ret;
+
+ ret = __joycon_hid_send(ctlr->hdev, data, len);
+ if (ret < 0) {
+ memset(ctlr->input_buf, 0, JC_MAX_RESP_SIZE);
+ return ret;
+ }
+
+ if (!wait_event_timeout(ctlr->wait, ctlr->received_resp, HZ)) {
+ hid_dbg(ctlr->hdev, "synchronous send/receive timed out\n");
+ memset(ctlr->input_buf, 0, JC_MAX_RESP_SIZE);
+ return -ETIMEDOUT;
+ }
+
+ ctlr->received_resp = false;
+ return 0;
+}
+
+static int joycon_send_usb(struct joycon_ctlr *ctlr, u8 cmd)
+{
+ int ret;
+ u8 buf[2] = {JC_OUTPUT_USB_CMD};
+
+ buf[1] = cmd;
+ ctlr->usb_ack_match = cmd;
+ ctlr->msg_type = JOYCON_MSG_TYPE_USB;
+ ret = joycon_hid_send_sync(ctlr, buf, sizeof(buf));
+ if (ret)
+ hid_dbg(ctlr->hdev, "send usb command failed; ret=%d\n", ret);
+ return ret;
+}
+
+static int joycon_send_subcmd(struct joycon_ctlr *ctlr,
+ struct joycon_subcmd_request *subcmd,
+ size_t data_len)
+{
+ int ret;
+
+ subcmd->output_id = JC_OUTPUT_RUMBLE_AND_SUBCMD;
+ subcmd->packet_num = ctlr->subcmd_num;
+ if (++ctlr->subcmd_num > 0xF)
+ ctlr->subcmd_num = 0;
+ ctlr->subcmd_ack_match = subcmd->subcmd_id;
+ ctlr->msg_type = JOYCON_MSG_TYPE_SUBCMD;
+
+ ret = joycon_hid_send_sync(ctlr, (u8 *)subcmd,
+ sizeof(*subcmd) + data_len);
+ if (ret < 0)
+ hid_dbg(ctlr->hdev, "send subcommand failed; ret=%d\n", ret);
+ else
+ ret = 0;
+ return ret;
+}
+
+/* Supply nibbles for flash and on. Ones correspond to active */
+static int joycon_set_player_leds(struct joycon_ctlr *ctlr, u8 flash, u8 on)
+{
+ struct joycon_subcmd_request *req;
+ u8 buffer[sizeof(*req) + 1] = { 0 };
+
+ req = (struct joycon_subcmd_request *)buffer;
+ req->subcmd_id = JC_SUBCMD_SET_PLAYER_LIGHTS;
+ req->data[0] = (flash << 4) | on;
+
+ hid_dbg(ctlr->hdev, "setting player leds\n");
+ return joycon_send_subcmd(ctlr, req, 1);
+}
+
+static const u16 DFLT_STICK_CAL_CEN = 2000;
+static const u16 DFLT_STICK_CAL_MAX = 3500;
+static const u16 DFLT_STICK_CAL_MIN = 500;
+static int joycon_request_calibration(struct joycon_ctlr *ctlr)
+{
+ struct joycon_subcmd_request *req;
+ u8 buffer[sizeof(*req) + 5] = { 0 };
+ struct joycon_input_report *report;
+ struct joycon_stick_cal *cal_x;
+ struct joycon_stick_cal *cal_y;
+ s32 x_max_above;
+ s32 x_min_below;
+ s32 y_max_above;
+ s32 y_min_below;
+ u8 *data;
+ u8 *raw_cal;
+ int ret;
+
+ req = (struct joycon_subcmd_request *)buffer;
+ req->subcmd_id = JC_SUBCMD_SPI_FLASH_READ;
+ data = req->data;
+ data[0] = 0xFF & JC_CAL_DATA_START;
+ data[1] = 0xFF & (JC_CAL_DATA_START >> 8);
+ data[2] = 0xFF & (JC_CAL_DATA_START >> 16);
+ data[3] = 0xFF & (JC_CAL_DATA_START >> 24);
+ data[4] = JC_CAL_DATA_SIZE;
+
+ hid_dbg(ctlr->hdev, "requesting cal data\n");
+ ret = joycon_send_subcmd(ctlr, req, 5);
+ if (ret) {
+ hid_warn(ctlr->hdev,
+ "Failed to read stick cal, using defaults; ret=%d\n",
+ ret);
+
+ ctlr->left_stick_cal_x.center = DFLT_STICK_CAL_CEN;
+ ctlr->left_stick_cal_x.max = DFLT_STICK_CAL_MAX;
+ ctlr->left_stick_cal_x.min = DFLT_STICK_CAL_MIN;
+
+ ctlr->left_stick_cal_y.center = DFLT_STICK_CAL_CEN;
+ ctlr->left_stick_cal_y.max = DFLT_STICK_CAL_MAX;
+ ctlr->left_stick_cal_y.min = DFLT_STICK_CAL_MIN;
+
+ ctlr->right_stick_cal_x.center = DFLT_STICK_CAL_CEN;
+ ctlr->right_stick_cal_x.max = DFLT_STICK_CAL_MAX;
+ ctlr->right_stick_cal_x.min = DFLT_STICK_CAL_MIN;
+
+ ctlr->right_stick_cal_y.center = DFLT_STICK_CAL_CEN;
+ ctlr->right_stick_cal_y.max = DFLT_STICK_CAL_MAX;
+ ctlr->right_stick_cal_y.min = DFLT_STICK_CAL_MIN;
+
+ return ret;
+ }
+
+ report = (struct joycon_input_report *)ctlr->input_buf;
+ raw_cal = &report->reply.data[5];
+
+ /* left stick calibration parsing */
+ cal_x = &ctlr->left_stick_cal_x;
+ cal_y = &ctlr->left_stick_cal_y;
+
+ x_max_above = hid_field_extract(ctlr->hdev, (raw_cal + 0), 0, 12);
+ y_max_above = hid_field_extract(ctlr->hdev, (raw_cal + 1), 4, 12);
+ cal_x->center = hid_field_extract(ctlr->hdev, (raw_cal + 3), 0, 12);
+ cal_y->center = hid_field_extract(ctlr->hdev, (raw_cal + 4), 4, 12);
+ x_min_below = hid_field_extract(ctlr->hdev, (raw_cal + 6), 0, 12);
+ y_min_below = hid_field_extract(ctlr->hdev, (raw_cal + 7), 4, 12);
+ cal_x->max = cal_x->center + x_max_above;
+ cal_x->min = cal_x->center - x_min_below;
+ cal_y->max = cal_y->center + y_max_above;
+ cal_y->min = cal_y->center - y_min_below;
+
+ /* right stick calibration parsing */
+ raw_cal += 9;
+ cal_x = &ctlr->right_stick_cal_x;
+ cal_y = &ctlr->right_stick_cal_y;
+
+ cal_x->center = hid_field_extract(ctlr->hdev, (raw_cal + 0), 0, 12);
+ cal_y->center = hid_field_extract(ctlr->hdev, (raw_cal + 1), 4, 12);
+ x_min_below = hid_field_extract(ctlr->hdev, (raw_cal + 3), 0, 12);
+ y_min_below = hid_field_extract(ctlr->hdev, (raw_cal + 4), 4, 12);
+ x_max_above = hid_field_extract(ctlr->hdev, (raw_cal + 6), 0, 12);
+ y_max_above = hid_field_extract(ctlr->hdev, (raw_cal + 7), 4, 12);
+ cal_x->max = cal_x->center + x_max_above;
+ cal_x->min = cal_x->center - x_min_below;
+ cal_y->max = cal_y->center + y_max_above;
+ cal_y->min = cal_y->center - y_min_below;
+
+ hid_dbg(ctlr->hdev, "calibration:\n"
+ "l_x_c=%d l_x_max=%d l_x_min=%d\n"
+ "l_y_c=%d l_y_max=%d l_y_min=%d\n"
+ "r_x_c=%d r_x_max=%d r_x_min=%d\n"
+ "r_y_c=%d r_y_max=%d r_y_min=%d\n",
+ ctlr->left_stick_cal_x.center,
+ ctlr->left_stick_cal_x.max,
+ ctlr->left_stick_cal_x.min,
+ ctlr->left_stick_cal_y.center,
+ ctlr->left_stick_cal_y.max,
+ ctlr->left_stick_cal_y.min,
+ ctlr->right_stick_cal_x.center,
+ ctlr->right_stick_cal_x.max,
+ ctlr->right_stick_cal_x.min,
+ ctlr->right_stick_cal_y.center,
+ ctlr->right_stick_cal_y.max,
+ ctlr->right_stick_cal_y.min);
+
+ return 0;
+}
+
+static int joycon_set_report_mode(struct joycon_ctlr *ctlr)
+{
+ struct joycon_subcmd_request *req;
+ u8 buffer[sizeof(*req) + 1] = { 0 };
+
+ req = (struct joycon_subcmd_request *)buffer;
+ req->subcmd_id = JC_SUBCMD_SET_REPORT_MODE;
+ req->data[0] = 0x30; /* standard, full report mode */
+
+ hid_dbg(ctlr->hdev, "setting controller report mode\n");
+ return joycon_send_subcmd(ctlr, req, 1);
+}
+
+static s32 joycon_map_stick_val(struct joycon_stick_cal *cal, s32 val)
+{
+ s32 center = cal->center;
+ s32 min = cal->min;
+ s32 max = cal->max;
+ s32 new_val;
+
+ if (val > center) {
+ new_val = (val - center) * JC_MAX_STICK_MAG;
+ new_val /= (max - center);
+ } else {
+ new_val = (center - val) * -JC_MAX_STICK_MAG;
+ new_val /= (center - min);
+ }
+ new_val = clamp(new_val, (s32)-JC_MAX_STICK_MAG, (s32)JC_MAX_STICK_MAG);
+ return new_val;
+}
+
+static void joycon_parse_report(struct joycon_ctlr *ctlr,
+ struct joycon_input_report *rep)
+{
+ struct input_dev *dev = ctlr->input;
+ u32 btns;
+ u32 id = ctlr->hdev->product;
+
+ btns = hid_field_extract(ctlr->hdev, rep->button_status, 0, 24);
+
+ if (id != USB_DEVICE_ID_NINTENDO_JOYCONR) {
+ u16 raw_x;
+ u16 raw_y;
+ s32 x;
+ s32 y;
+
+ /* get raw stick values */
+ raw_x = hid_field_extract(ctlr->hdev, rep->left_stick, 0, 12);
+ raw_y = hid_field_extract(ctlr->hdev,
+ rep->left_stick + 1, 4, 12);
+ /* map the stick values */
+ x = joycon_map_stick_val(&ctlr->left_stick_cal_x, raw_x);
+ y = -joycon_map_stick_val(&ctlr->left_stick_cal_y, raw_y);
+ /* report sticks */
+ input_report_abs(dev, ABS_X, x);
+ input_report_abs(dev, ABS_Y, y);
+
+ /* report buttons */
+ input_report_key(dev, BTN_TL, btns & JC_BTN_L);
+ input_report_key(dev, BTN_TL2, btns & JC_BTN_ZL);
+ if (id != USB_DEVICE_ID_NINTENDO_PROCON) {
+ /* Report the S buttons as the non-existent triggers */
+ input_report_key(dev, BTN_TR, btns & JC_BTN_SL_L);
+ input_report_key(dev, BTN_TR2, btns & JC_BTN_SR_L);
+ }
+ input_report_key(dev, BTN_SELECT, btns & JC_BTN_MINUS);
+ input_report_key(dev, BTN_THUMBL, btns & JC_BTN_LSTICK);
+ input_report_key(dev, BTN_Z, btns & JC_BTN_CAP);
+ input_report_key(dev, BTN_DPAD_DOWN, btns & JC_BTN_DOWN);
+ input_report_key(dev, BTN_DPAD_UP, btns & JC_BTN_UP);
+ input_report_key(dev, BTN_DPAD_RIGHT, btns & JC_BTN_RIGHT);
+ input_report_key(dev, BTN_DPAD_LEFT, btns & JC_BTN_LEFT);
+ }
+ if (id != USB_DEVICE_ID_NINTENDO_JOYCONL) {
+ u16 raw_x;
+ u16 raw_y;
+ s32 x;
+ s32 y;
+
+ /* get raw stick values */
+ raw_x = hid_field_extract(ctlr->hdev, rep->right_stick, 0, 12);
+ raw_y = hid_field_extract(ctlr->hdev,
+ rep->right_stick + 1, 4, 12);
+ /* map stick values */
+ x = joycon_map_stick_val(&ctlr->right_stick_cal_x, raw_x);
+ y = -joycon_map_stick_val(&ctlr->right_stick_cal_y, raw_y);
+ /* report sticks */
+ input_report_abs(dev, ABS_RX, x);
+ input_report_abs(dev, ABS_RY, y);
+
+ /* report buttons */
+ input_report_key(dev, BTN_TR, btns & JC_BTN_R);
+ input_report_key(dev, BTN_TR2, btns & JC_BTN_ZR);
+ if (id != USB_DEVICE_ID_NINTENDO_PROCON) {
+ /* Report the S buttons as the non-existent triggers */
+ input_report_key(dev, BTN_TL, btns & JC_BTN_SL_R);
+ input_report_key(dev, BTN_TL2, btns & JC_BTN_SR_R);
+ }
+ input_report_key(dev, BTN_START, btns & JC_BTN_PLUS);
+ input_report_key(dev, BTN_THUMBR, btns & JC_BTN_RSTICK);
+ input_report_key(dev, BTN_MODE, btns & JC_BTN_HOME);
+ input_report_key(dev, BTN_WEST, btns & JC_BTN_Y);
+ input_report_key(dev, BTN_NORTH, btns & JC_BTN_X);
+ input_report_key(dev, BTN_EAST, btns & JC_BTN_A);
+ input_report_key(dev, BTN_SOUTH, btns & JC_BTN_B);
+ }
+
+ input_sync(dev);
+}
+
+
+static const unsigned int joycon_button_inputs_l[] = {
+ BTN_SELECT, BTN_Z, BTN_THUMBL,
+ BTN_DPAD_UP, BTN_DPAD_DOWN, BTN_DPAD_LEFT, BTN_DPAD_RIGHT,
+ BTN_TL, BTN_TL2,
+ 0 /* 0 signals end of array */
+};
+
+static const unsigned int joycon_button_inputs_r[] = {
+ BTN_START, BTN_MODE, BTN_THUMBR,
+ BTN_SOUTH, BTN_EAST, BTN_NORTH, BTN_WEST,
+ BTN_TR, BTN_TR2,
+ 0 /* 0 signals end of array */
+};
+
+static DEFINE_MUTEX(joycon_input_num_mutex);
+static int joycon_input_create(struct joycon_ctlr *ctlr)
+{
+ struct hid_device *hdev;
+ static int input_num = 1;
+ const char *name;
+ int ret;
+ int i;
+
+ hdev = ctlr->hdev;
+
+ switch (hdev->product) {
+ case USB_DEVICE_ID_NINTENDO_PROCON:
+ name = "Nintendo Switch Pro Controller";
+ break;
+ case USB_DEVICE_ID_NINTENDO_JOYCONL:
+ name = "Nintendo Switch Left Joy-Con";
+ break;
+ case USB_DEVICE_ID_NINTENDO_JOYCONR:
+ name = "Nintendo Switch Right Joy-Con";
+ break;
+ default: /* Should be impossible */
+ hid_err(hdev, "Invalid hid product\n");
+ return -EINVAL;
+ }
+
+ ctlr->input = devm_input_allocate_device(&hdev->dev);
+ if (!ctlr->input)
+ return -ENOMEM;
+ ctlr->input->id.bustype = hdev->bus;
+ ctlr->input->id.vendor = hdev->vendor;
+ ctlr->input->id.product = hdev->product;
+ ctlr->input->id.version = hdev->version;
+ ctlr->input->name = name;
+ input_set_drvdata(ctlr->input, ctlr);
+
+
+ /* set up sticks */
+ if (hdev->product != USB_DEVICE_ID_NINTENDO_JOYCONR) {
+ input_set_abs_params(ctlr->input, ABS_X,
+ -JC_MAX_STICK_MAG, JC_MAX_STICK_MAG,
+ JC_STICK_FUZZ, JC_STICK_FLAT);
+ input_set_abs_params(ctlr->input, ABS_Y,
+ -JC_MAX_STICK_MAG, JC_MAX_STICK_MAG,
+ JC_STICK_FUZZ, JC_STICK_FLAT);
+ }
+ if (hdev->product != USB_DEVICE_ID_NINTENDO_JOYCONL) {
+ input_set_abs_params(ctlr->input, ABS_RX,
+ -JC_MAX_STICK_MAG, JC_MAX_STICK_MAG,
+ JC_STICK_FUZZ, JC_STICK_FLAT);
+ input_set_abs_params(ctlr->input, ABS_RY,
+ -JC_MAX_STICK_MAG, JC_MAX_STICK_MAG,
+ JC_STICK_FUZZ, JC_STICK_FLAT);
+ }
+
+ /* set up buttons */
+ if (hdev->product != USB_DEVICE_ID_NINTENDO_JOYCONR) {
+ for (i = 0; joycon_button_inputs_l[i] > 0; i++)
+ input_set_capability(ctlr->input, EV_KEY,
+ joycon_button_inputs_l[i]);
+ }
+ if (hdev->product != USB_DEVICE_ID_NINTENDO_JOYCONL) {
+ for (i = 0; joycon_button_inputs_r[i] > 0; i++)
+ input_set_capability(ctlr->input, EV_KEY,
+ joycon_button_inputs_r[i]);
+ }
+
+ ret = input_register_device(ctlr->input);
+ if (ret)
+ return ret;
+
+ /* Set the default controller player leds based on controller number */
+ mutex_lock(&joycon_input_num_mutex);
+ mutex_lock(&ctlr->output_mutex);
+ ret = joycon_set_player_leds(ctlr, 0, 0xF >> (4 - input_num));
+ if (ret)
+ hid_warn(ctlr->hdev, "Failed to set leds; ret=%d\n", ret);
+ mutex_unlock(&ctlr->output_mutex);
+ if (++input_num > 4)
+ input_num = 1;
+ mutex_unlock(&joycon_input_num_mutex);
+
+ return 0;
+}
+
+/* Common handler for parsing inputs */
+static int joycon_ctlr_read_handler(struct joycon_ctlr *ctlr, u8 *data,
+ int size)
+{
+ int ret = 0;
+
+ if (data[0] == JC_INPUT_SUBCMD_REPLY || data[0] == JC_INPUT_IMU_DATA ||
+ data[0] == JC_INPUT_MCU_DATA) {
+ if (size >= 12) /* make sure it contains the input report */
+ joycon_parse_report(ctlr,
+ (struct joycon_input_report *)data);
+ }
+
+ return ret;
+}
+
+static int joycon_ctlr_handle_event(struct joycon_ctlr *ctlr, u8 *data,
+ int size)
+{
+ int ret = 0;
+ bool match = false;
+ struct joycon_input_report *report;
+
+ if (unlikely(mutex_is_locked(&ctlr->output_mutex)) &&
+ ctlr->msg_type != JOYCON_MSG_TYPE_NONE) {
+ switch (ctlr->msg_type) {
+ case JOYCON_MSG_TYPE_USB:
+ if (size < 2)
+ break;
+ if (data[0] == JC_INPUT_USB_RESPONSE &&
+ data[1] == ctlr->usb_ack_match)
+ match = true;
+ break;
+ case JOYCON_MSG_TYPE_SUBCMD:
+ if (size < sizeof(struct joycon_input_report) ||
+ data[0] != JC_INPUT_SUBCMD_REPLY)
+ break;
+ report = (struct joycon_input_report *)data;
+ if (report->reply.id == ctlr->subcmd_ack_match)
+ match = true;
+ break;
+ default:
+ break;
+ }
+
+ if (match) {
+ memcpy(ctlr->input_buf, data,
+ min(size, (int)JC_MAX_RESP_SIZE));
+ ctlr->msg_type = JOYCON_MSG_TYPE_NONE;
+ ctlr->received_resp = true;
+ wake_up(&ctlr->wait);
+
+ /* This message has been handled */
+ return 1;
+ }
+ }
+
+ if (ctlr->ctlr_state == JOYCON_CTLR_STATE_READ)
+ ret = joycon_ctlr_read_handler(ctlr, data, size);
+
+ return ret;
+}
+
+static int nintendo_hid_event(struct hid_device *hdev,
+ struct hid_report *report, u8 *raw_data, int size)
+{
+ struct joycon_ctlr *ctlr = hid_get_drvdata(hdev);
+
+ if (size < 1)
+ return -EINVAL;
+
+ return joycon_ctlr_handle_event(ctlr, raw_data, size);
+}
+
+static int nintendo_hid_probe(struct hid_device *hdev,
+ const struct hid_device_id *id)
+{
+ int ret;
+ struct joycon_ctlr *ctlr;
+
+ hid_dbg(hdev, "probe - start\n");
+
+ ctlr = devm_kzalloc(&hdev->dev, sizeof(*ctlr), GFP_KERNEL);
+ if (!ctlr) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ ctlr->hdev = hdev;
+ ctlr->ctlr_state = JOYCON_CTLR_STATE_INIT;
+ hid_set_drvdata(hdev, ctlr);
+ mutex_init(&ctlr->output_mutex);
+ init_waitqueue_head(&ctlr->wait);
+
+ ret = hid_parse(hdev);
+ if (ret) {
+ hid_err(hdev, "HID parse failed\n");
+ goto err;
+ }
+
+ ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW);
+ if (ret) {
+ hid_err(hdev, "HW start failed\n");
+ goto err;
+ }
+
+ ret = hid_hw_open(hdev);
+ if (ret) {
+ hid_err(hdev, "cannot start hardware I/O\n");
+ goto err_stop;
+ }
+
+ hid_device_io_start(hdev);
+
+ /* Initialize the controller */
+ mutex_lock(&ctlr->output_mutex);
+ /* if handshake command fails, assume ble pro controller */
+ if (hdev->product == USB_DEVICE_ID_NINTENDO_PROCON &&
+ !joycon_send_usb(ctlr, JC_USB_CMD_HANDSHAKE)) {
+ hid_dbg(hdev, "detected USB controller\n");
+ /* set baudrate for improved latency */
+ ret = joycon_send_usb(ctlr, JC_USB_CMD_BAUDRATE_3M);
+ if (ret) {
+ hid_err(hdev, "Failed to set baudrate; ret=%d\n", ret);
+ goto err_mutex;
+ }
+ /* handshake */
+ ret = joycon_send_usb(ctlr, JC_USB_CMD_HANDSHAKE);
+ if (ret) {
+ hid_err(hdev, "Failed handshake; ret=%d\n", ret);
+ goto err_mutex;
+ }
+ /*
+ * Set no timeout (to keep controller in USB mode).
+ * This doesn't send a response, so ignore the timeout.
+ */
+ joycon_send_usb(ctlr, JC_USB_CMD_NO_TIMEOUT);
+ }
+
+ /* get controller calibration data, and parse it */
+ ret = joycon_request_calibration(ctlr);
+ if (ret) {
+ /*
+ * We can function with default calibration, but it may be
+ * inaccurate. Provide a warning, and continue on.
+ */
+ hid_warn(hdev, "Analog stick positions may be inaccurate\n");
+ }
+
+ /* Set the reporting mode to 0x30, which is the full report mode */
+ ret = joycon_set_report_mode(ctlr);
+ if (ret) {
+ hid_err(hdev, "Failed to set report mode; ret=%d\n", ret);
+ goto err_mutex;
+ }
+
+ mutex_unlock(&ctlr->output_mutex);
+
+ ret = joycon_input_create(ctlr);
+ if (ret) {
+ hid_err(hdev, "Failed to create input device; ret=%d\n", ret);
+ goto err_close;
+ }
+
+ ctlr->ctlr_state = JOYCON_CTLR_STATE_READ;
+
+ hid_dbg(hdev, "probe - success\n");
+ return 0;
+
+err_mutex:
+ mutex_unlock(&ctlr->output_mutex);
+err_close:
+ hid_hw_close(hdev);
+err_stop:
+ hid_hw_stop(hdev);
+err:
+ hid_err(hdev, "probe - fail = %d\n", ret);
+ return ret;
+}
+
+static void nintendo_hid_remove(struct hid_device *hdev)
+{
+ hid_dbg(hdev, "remove\n");
+ hid_hw_close(hdev);
+ hid_hw_stop(hdev);
+}
+
+static const struct hid_device_id nintendo_hid_devices[] = {
+ { HID_USB_DEVICE(USB_VENDOR_ID_NINTENDO,
+ USB_DEVICE_ID_NINTENDO_PROCON) },
+ { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO,
+ USB_DEVICE_ID_NINTENDO_PROCON) },
+ { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO,
+ USB_DEVICE_ID_NINTENDO_JOYCONL) },
+ { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO,
+ USB_DEVICE_ID_NINTENDO_JOYCONR) },
+ { }
+};
+MODULE_DEVICE_TABLE(hid, nintendo_hid_devices);
+
+static struct hid_driver nintendo_hid_driver = {
+ .name = "nintendo",
+ .id_table = nintendo_hid_devices,
+ .probe = nintendo_hid_probe,
+ .remove = nintendo_hid_remove,
+ .raw_event = nintendo_hid_event,
+};
+module_hid_driver(nintendo_hid_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Daniel J. Ogorchock <djogorchock@gmail.com>");
+MODULE_DESCRIPTION("Driver for Nintendo Switch Controllers");
diff --git a/drivers/hwmon/pwm-fan.c b/drivers/hwmon/pwm-fan.c
index 65de80b..db0d15c 100644
--- a/drivers/hwmon/pwm-fan.c
+++ b/drivers/hwmon/pwm-fan.c
@@ -321,7 +321,7 @@ static int pwm_fan_resume(struct device *dev)
return 0;
pwm_get_args(ctx->pwm, &pargs);
- duty = DIV_ROUND_UP(ctx->pwm_value * (pargs.period - 1), MAX_PWM);
+ duty = DIV_ROUND_UP_ULL(ctx->pwm_value * (pargs.period - 1), MAX_PWM);
ret = pwm_config(ctx->pwm, duty, pargs.period);
if (ret)
return ret;
diff --git a/drivers/hwtracing/coresight/Kconfig b/drivers/hwtracing/coresight/Kconfig
index ad34380..44d1650 100644
--- a/drivers/hwtracing/coresight/Kconfig
+++ b/drivers/hwtracing/coresight/Kconfig
@@ -75,6 +75,7 @@
bool "CoreSight Embedded Trace Macrocell 4.x driver"
depends on ARM64
select CORESIGHT_LINKS_AND_SINKS
+ select PID_IN_CONTEXTIDR
help
This driver provides support for the ETM4.x tracer module, tracing the
instructions that a processor is executing. This is primarily useful
diff --git a/drivers/hwtracing/coresight/coresight-dynamic-replicator.c b/drivers/hwtracing/coresight/coresight-dynamic-replicator.c
index d31f1d8..8be9ed1 100644
--- a/drivers/hwtracing/coresight/coresight-dynamic-replicator.c
+++ b/drivers/hwtracing/coresight/coresight-dynamic-replicator.c
@@ -26,12 +26,14 @@
* @dev: the device entity associated with this component
* @atclk: optional clock for the core parts of the replicator.
* @csdev: component vitals needed by the framework
+ * @spinlock: serialize enable/disable operations.
*/
struct replicator_state {
void __iomem *base;
struct device *dev;
struct clk *atclk;
struct coresight_device *csdev;
+ spinlock_t spinlock;
};
/*
@@ -41,17 +43,20 @@ static void replicator_reset(struct replicator_state *drvdata)
{
CS_UNLOCK(drvdata->base);
- writel_relaxed(0xff, drvdata->base + REPLICATOR_IDFILTER0);
- writel_relaxed(0xff, drvdata->base + REPLICATOR_IDFILTER1);
+ if (!coresight_claim_device_unlocked(drvdata->base)) {
+ writel_relaxed(0xff, drvdata->base + REPLICATOR_IDFILTER0);
+ writel_relaxed(0xff, drvdata->base + REPLICATOR_IDFILTER1);
+ coresight_disclaim_device_unlocked(drvdata->base);
+ }
CS_LOCK(drvdata->base);
}
-static int replicator_enable(struct coresight_device *csdev, int inport,
- int outport)
+static int dynamic_replicator_enable(struct replicator_state *drvdata,
+ int inport, int outport)
{
+ int rc = 0;
u32 reg;
- struct replicator_state *drvdata = dev_get_drvdata(csdev->dev.parent);
switch (outport) {
case 0:
@@ -67,20 +72,45 @@ static int replicator_enable(struct coresight_device *csdev, int inport,
CS_UNLOCK(drvdata->base);
+ if ((readl_relaxed(drvdata->base + REPLICATOR_IDFILTER0) == 0xff) &&
+ (readl_relaxed(drvdata->base + REPLICATOR_IDFILTER1) == 0xff))
+ rc = coresight_claim_device_unlocked(drvdata->base);
/* Ensure that the outport is enabled. */
- writel_relaxed(0x00, drvdata->base + reg);
+ if (!rc)
+ writel_relaxed(0x00, drvdata->base + reg);
CS_LOCK(drvdata->base);
- dev_info(drvdata->dev, "REPLICATOR enabled\n");
- return 0;
+ return rc;
}
-static void replicator_disable(struct coresight_device *csdev, int inport,
- int outport)
+static int replicator_enable(struct coresight_device *csdev, int inport,
+ int outport)
+{
+ int rc = 0;
+ struct replicator_state *drvdata = dev_get_drvdata(csdev->dev.parent);
+ unsigned long flags;
+ bool first_enable = false;
+
+ spin_lock_irqsave(&drvdata->spinlock, flags);
+ if (atomic_read(&csdev->refcnt[outport]) == 0) {
+ rc = dynamic_replicator_enable(drvdata, inport, outport);
+ if (!rc)
+ first_enable = true;
+ }
+ if (!rc)
+ atomic_inc(&csdev->refcnt[outport]);
+ spin_unlock_irqrestore(&drvdata->spinlock, flags);
+
+ if (first_enable)
+ dev_dbg(&csdev->dev, "REPLICATOR enabled\n");
+ return rc;
+}
+
+static void dynamic_replicator_disable(struct replicator_state *drvdata,
+ int inport, int outport)
{
u32 reg;
- struct replicator_state *drvdata = dev_get_drvdata(csdev->dev.parent);
switch (outport) {
case 0:
@@ -99,9 +129,28 @@ static void replicator_disable(struct coresight_device *csdev, int inport,
/* disable the flow of ATB data through port */
writel_relaxed(0xff, drvdata->base + reg);
+ if ((readl_relaxed(drvdata->base + REPLICATOR_IDFILTER0) == 0xff) &&
+ (readl_relaxed(drvdata->base + REPLICATOR_IDFILTER1) == 0xff))
+ coresight_disclaim_device_unlocked(drvdata->base);
CS_LOCK(drvdata->base);
+}
- dev_info(drvdata->dev, "REPLICATOR disabled\n");
+static void replicator_disable(struct coresight_device *csdev, int inport,
+ int outport)
+{
+ struct replicator_state *drvdata = dev_get_drvdata(csdev->dev.parent);
+ unsigned long flags;
+ bool last_disable = false;
+
+ spin_lock_irqsave(&drvdata->spinlock, flags);
+ if (atomic_dec_return(&csdev->refcnt[outport]) == 0) {
+ dynamic_replicator_disable(drvdata, inport, outport);
+ last_disable = true;
+ }
+ spin_unlock_irqrestore(&drvdata->spinlock, flags);
+
+ if (last_disable)
+ dev_dbg(drvdata->dev, "REPLICATOR disabled\n");
}
static const struct coresight_ops_link replicator_link_ops = {
@@ -174,6 +223,7 @@ static int replicator_probe(struct amba_device *adev, const struct amba_id *id)
dev_set_drvdata(dev, drvdata);
pm_runtime_put(&adev->dev);
+ spin_lock_init(&drvdata->spinlock);
desc.type = CORESIGHT_DEV_TYPE_LINK;
desc.subtype.link_subtype = CORESIGHT_DEV_SUBTYPE_LINK_SPLIT;
desc.ops = &replicator_cs_ops;
diff --git a/drivers/hwtracing/coresight/coresight-etb10.c b/drivers/hwtracing/coresight/coresight-etb10.c
index 6cf28b0..f6afee0 100644
--- a/drivers/hwtracing/coresight/coresight-etb10.c
+++ b/drivers/hwtracing/coresight/coresight-etb10.c
@@ -5,7 +5,7 @@
* Description: CoreSight Embedded Trace Buffer driver
*/
-#include <asm/local.h>
+#include <linux/atomic.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
@@ -28,6 +28,7 @@
#include "coresight-priv.h"
+#include "coresight-etm-perf.h"
#define ETB_RAM_DEPTH_REG 0x004
#define ETB_STATUS_REG 0x00c
@@ -71,8 +72,8 @@
* @miscdev: specifics to handle "/dev/xyz.etb" entry.
* @spinlock: only one at a time pls.
* @reading: synchronise user space access to etb buffer.
- * @mode: this ETB is being used.
* @buf: area of memory where ETB buffer content gets sent.
+ * @mode: this ETB is being used.
* @buffer_depth: size of @buf.
* @trigger_cntr: amount of words to store after a trigger.
*/
@@ -84,12 +85,15 @@ struct etb_drvdata {
struct miscdevice miscdev;
spinlock_t spinlock;
local_t reading;
- local_t mode;
u8 *buf;
+ u32 mode;
u32 buffer_depth;
u32 trigger_cntr;
};
+static int etb_set_buffer(struct coresight_device *csdev,
+ struct perf_output_handle *handle);
+
static unsigned int etb_get_buffer_depth(struct etb_drvdata *drvdata)
{
u32 depth = 0;
@@ -103,7 +107,7 @@ static unsigned int etb_get_buffer_depth(struct etb_drvdata *drvdata)
return depth;
}
-static void etb_enable_hw(struct etb_drvdata *drvdata)
+static void __etb_enable_hw(struct etb_drvdata *drvdata)
{
int i;
u32 depth;
@@ -131,40 +135,104 @@ static void etb_enable_hw(struct etb_drvdata *drvdata)
CS_LOCK(drvdata->base);
}
-static int etb_enable(struct coresight_device *csdev, u32 mode)
+static int etb_enable_hw(struct etb_drvdata *drvdata)
{
- u32 val;
- unsigned long flags;
- struct etb_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
+ int rc = coresight_claim_device(drvdata->base);
- val = local_cmpxchg(&drvdata->mode,
- CS_MODE_DISABLED, mode);
- /*
- * When accessing from Perf, a HW buffer can be handled
- * by a single trace entity. In sysFS mode many tracers
- * can be logging to the same HW buffer.
- */
- if (val == CS_MODE_PERF)
- return -EBUSY;
+ if (rc)
+ return rc;
- /* Don't let perf disturb sysFS sessions */
- if (val == CS_MODE_SYSFS && mode == CS_MODE_PERF)
- return -EBUSY;
-
- /* Nothing to do, the tracer is already enabled. */
- if (val == CS_MODE_SYSFS)
- goto out;
-
- spin_lock_irqsave(&drvdata->spinlock, flags);
- etb_enable_hw(drvdata);
- spin_unlock_irqrestore(&drvdata->spinlock, flags);
-
-out:
- dev_info(drvdata->dev, "ETB enabled\n");
+ __etb_enable_hw(drvdata);
return 0;
}
-static void etb_disable_hw(struct etb_drvdata *drvdata)
+static int etb_enable_sysfs(struct coresight_device *csdev)
+{
+ int ret = 0;
+ unsigned long flags;
+ struct etb_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
+
+ spin_lock_irqsave(&drvdata->spinlock, flags);
+
+ /* Don't messup with perf sessions. */
+ if (drvdata->mode == CS_MODE_PERF) {
+ ret = -EBUSY;
+ goto out;
+ }
+
+ if (drvdata->mode == CS_MODE_DISABLED) {
+ ret = etb_enable_hw(drvdata);
+ if (ret)
+ goto out;
+
+ drvdata->mode = CS_MODE_SYSFS;
+ }
+
+ atomic_inc(csdev->refcnt);
+out:
+ spin_unlock_irqrestore(&drvdata->spinlock, flags);
+ return ret;
+}
+
+static int etb_enable_perf(struct coresight_device *csdev, void *data)
+{
+ int ret = 0;
+ unsigned long flags;
+ struct etb_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
+
+ spin_lock_irqsave(&drvdata->spinlock, flags);
+
+ /* No need to continue if the component is already in use. */
+ if (drvdata->mode != CS_MODE_DISABLED) {
+ ret = -EBUSY;
+ goto out;
+ }
+
+ /*
+ * We don't have an internal state to clean up if we fail to setup
+ * the perf buffer. So we can perform the step before we turn the
+ * ETB on and leave without cleaning up.
+ */
+ ret = etb_set_buffer(csdev, (struct perf_output_handle *)data);
+ if (ret)
+ goto out;
+
+ ret = etb_enable_hw(drvdata);
+ if (!ret) {
+ drvdata->mode = CS_MODE_PERF;
+ atomic_inc(csdev->refcnt);
+ }
+
+out:
+ spin_unlock_irqrestore(&drvdata->spinlock, flags);
+ return ret;
+}
+
+static int etb_enable(struct coresight_device *csdev, u32 mode, void *data)
+{
+ int ret;
+ struct etb_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
+
+ switch (mode) {
+ case CS_MODE_SYSFS:
+ ret = etb_enable_sysfs(csdev);
+ break;
+ case CS_MODE_PERF:
+ ret = etb_enable_perf(csdev, data);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ if (ret)
+ return ret;
+
+ dev_dbg(drvdata->dev, "ETB enabled\n");
+ return 0;
+}
+
+static void __etb_disable_hw(struct etb_drvdata *drvdata)
{
u32 ffcr;
@@ -254,25 +322,40 @@ static void etb_dump_hw(struct etb_drvdata *drvdata)
CS_LOCK(drvdata->base);
}
-static void etb_disable(struct coresight_device *csdev)
+static void etb_disable_hw(struct etb_drvdata *drvdata)
+{
+ __etb_disable_hw(drvdata);
+ etb_dump_hw(drvdata);
+ coresight_disclaim_device(drvdata->base);
+}
+
+static int etb_disable(struct coresight_device *csdev)
{
struct etb_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
unsigned long flags;
spin_lock_irqsave(&drvdata->spinlock, flags);
+
+ if (atomic_dec_return(csdev->refcnt)) {
+ spin_unlock_irqrestore(&drvdata->spinlock, flags);
+ return -EBUSY;
+ }
+
+ /* Complain if we (somehow) got out of sync */
+ WARN_ON_ONCE(drvdata->mode == CS_MODE_DISABLED);
etb_disable_hw(drvdata);
- etb_dump_hw(drvdata);
+ drvdata->mode = CS_MODE_DISABLED;
spin_unlock_irqrestore(&drvdata->spinlock, flags);
- local_set(&drvdata->mode, CS_MODE_DISABLED);
-
- dev_info(drvdata->dev, "ETB disabled\n");
+ dev_dbg(drvdata->dev, "ETB disabled\n");
+ return 0;
}
-static void *etb_alloc_buffer(struct coresight_device *csdev, int cpu,
- void **pages, int nr_pages, bool overwrite)
+static void *etb_alloc_buffer(struct coresight_device *csdev,
+ struct perf_event *event, void **pages,
+ int nr_pages, bool overwrite)
{
- int node;
+ int node, cpu = event->cpu;
struct cs_buffers *buf;
node = (cpu == -1) ? NUMA_NO_NODE : cpu_to_node(cpu);
@@ -296,12 +379,14 @@ static void etb_free_buffer(void *config)
}
static int etb_set_buffer(struct coresight_device *csdev,
- struct perf_output_handle *handle,
- void *sink_config)
+ struct perf_output_handle *handle)
{
int ret = 0;
unsigned long head;
- struct cs_buffers *buf = sink_config;
+ struct cs_buffers *buf = etm_perf_sink_config(handle);
+
+ if (!buf)
+ return -EINVAL;
/* wrap head around to the amount of space we have */
head = handle->head & ((buf->nr_pages << PAGE_SHIFT) - 1);
@@ -317,37 +402,7 @@ static int etb_set_buffer(struct coresight_device *csdev,
return ret;
}
-static unsigned long etb_reset_buffer(struct coresight_device *csdev,
- struct perf_output_handle *handle,
- void *sink_config)
-{
- unsigned long size = 0;
- struct cs_buffers *buf = sink_config;
-
- if (buf) {
- /*
- * In snapshot mode ->data_size holds the new address of the
- * ring buffer's head. The size itself is the whole address
- * range since we want the latest information.
- */
- if (buf->snapshot)
- handle->head = local_xchg(&buf->data_size,
- buf->nr_pages << PAGE_SHIFT);
-
- /*
- * Tell the tracer PMU how much we got in this run and if
- * something went wrong along the way. Nobody else can use
- * this cs_buffers instance until we are done. As such
- * resetting parameters here and squaring off with the ring
- * buffer API in the tracer PMU is fine.
- */
- size = local_xchg(&buf->data_size, 0);
- }
-
- return size;
-}
-
-static void etb_update_buffer(struct coresight_device *csdev,
+static unsigned long etb_update_buffer(struct coresight_device *csdev,
struct perf_output_handle *handle,
void *sink_config)
{
@@ -356,17 +411,18 @@ static void etb_update_buffer(struct coresight_device *csdev,
u8 *buf_ptr;
const u32 *barrier;
u32 read_ptr, write_ptr, capacity;
- u32 status, read_data, to_read;
- unsigned long offset;
+ u32 status, read_data;
+ unsigned long offset, to_read, flags;
struct cs_buffers *buf = sink_config;
struct etb_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
if (!buf)
- return;
+ return 0;
capacity = drvdata->buffer_depth * ETB_FRAME_SIZE_WORDS;
- etb_disable_hw(drvdata);
+ spin_lock_irqsave(&drvdata->spinlock, flags);
+ __etb_disable_hw(drvdata);
CS_UNLOCK(drvdata->base);
/* unit is in words, not bytes */
@@ -431,7 +487,13 @@ static void etb_update_buffer(struct coresight_device *csdev,
lost = true;
}
- if (lost)
+ /*
+ * Don't set the TRUNCATED flag in snapshot mode because 1) the
+ * captured buffer is expected to be truncated and 2) a full buffer
+ * prevents the event from being re-enabled by the perf core,
+ * resulting in stale data being send to user space.
+ */
+ if (!buf->snapshot && lost)
perf_aux_output_flag(handle, PERF_AUX_FLAG_TRUNCATED);
/* finally tell HW where we want to start reading from */
@@ -467,18 +529,18 @@ static void etb_update_buffer(struct coresight_device *csdev,
writel_relaxed(0x0, drvdata->base + ETB_RAM_WRITE_POINTER);
/*
- * In snapshot mode all we have to do is communicate to
- * perf_aux_output_end() the address of the current head. In full
- * trace mode the same function expects a size to move rb->aux_head
- * forward.
+ * In snapshot mode we have to update the handle->head to point
+ * to the new location.
*/
- if (buf->snapshot)
- local_set(&buf->data_size, (cur * PAGE_SIZE) + offset);
- else
- local_add(to_read, &buf->data_size);
-
- etb_enable_hw(drvdata);
+ if (buf->snapshot) {
+ handle->head = (cur * PAGE_SIZE) + offset;
+ to_read = buf->nr_pages << PAGE_SHIFT;
+ }
+ __etb_enable_hw(drvdata);
CS_LOCK(drvdata->base);
+ spin_unlock_irqrestore(&drvdata->spinlock, flags);
+
+ return to_read;
}
static const struct coresight_ops_sink etb_sink_ops = {
@@ -486,8 +548,6 @@ static const struct coresight_ops_sink etb_sink_ops = {
.disable = etb_disable,
.alloc_buffer = etb_alloc_buffer,
.free_buffer = etb_free_buffer,
- .set_buffer = etb_set_buffer,
- .reset_buffer = etb_reset_buffer,
.update_buffer = etb_update_buffer,
};
@@ -500,14 +560,14 @@ static void etb_dump(struct etb_drvdata *drvdata)
unsigned long flags;
spin_lock_irqsave(&drvdata->spinlock, flags);
- if (local_read(&drvdata->mode) == CS_MODE_SYSFS) {
- etb_disable_hw(drvdata);
+ if (drvdata->mode == CS_MODE_SYSFS) {
+ __etb_disable_hw(drvdata);
etb_dump_hw(drvdata);
- etb_enable_hw(drvdata);
+ __etb_enable_hw(drvdata);
}
spin_unlock_irqrestore(&drvdata->spinlock, flags);
- dev_info(drvdata->dev, "ETB dumped\n");
+ dev_dbg(drvdata->dev, "ETB dumped\n");
}
static int etb_open(struct inode *inode, struct file *file)
diff --git a/drivers/hwtracing/coresight/coresight-etm-perf.c b/drivers/hwtracing/coresight/coresight-etm-perf.c
index 567f46c..9b0c5d7 100644
--- a/drivers/hwtracing/coresight/coresight-etm-perf.c
+++ b/drivers/hwtracing/coresight/coresight-etm-perf.c
@@ -14,6 +14,7 @@
#include <linux/perf_event.h>
#include <linux/percpu-defs.h>
#include <linux/slab.h>
+#include <linux/stringhash.h>
#include <linux/types.h>
#include <linux/workqueue.h>
@@ -23,32 +24,23 @@
static struct pmu etm_pmu;
static bool etm_perf_up;
-/**
- * struct etm_event_data - Coresight specifics associated to an event
- * @work: Handle to free allocated memory outside IRQ context.
- * @mask: Hold the CPU(s) this event was set for.
- * @snk_config: The sink configuration.
- * @path: An array of path, each slot for one CPU.
- */
-struct etm_event_data {
- struct work_struct work;
- cpumask_t mask;
- void *snk_config;
- struct list_head * __percpu *path;
-};
-
static DEFINE_PER_CPU(struct perf_output_handle, ctx_handle);
static DEFINE_PER_CPU(struct coresight_device *, csdev_src);
/* ETMv3.5/PTM's ETMCR is 'config' */
PMU_FORMAT_ATTR(cycacc, "config:" __stringify(ETM_OPT_CYCACC));
+PMU_FORMAT_ATTR(contextid, "config:" __stringify(ETM_OPT_CTXTID));
PMU_FORMAT_ATTR(timestamp, "config:" __stringify(ETM_OPT_TS));
PMU_FORMAT_ATTR(retstack, "config:" __stringify(ETM_OPT_RETSTK));
+/* Sink ID - same for all ETMs */
+PMU_FORMAT_ATTR(sinkid, "config2:0-31");
static struct attribute *etm_config_formats_attr[] = {
&format_attr_cycacc.attr,
+ &format_attr_contextid.attr,
&format_attr_timestamp.attr,
&format_attr_retstack.attr,
+ &format_attr_sinkid.attr,
NULL,
};
@@ -57,8 +49,18 @@ static const struct attribute_group etm_pmu_format_group = {
.attrs = etm_config_formats_attr,
};
+static struct attribute *etm_config_sinks_attr[] = {
+ NULL,
+};
+
+static const struct attribute_group etm_pmu_sinks_group = {
+ .name = "sinks",
+ .attrs = etm_config_sinks_attr,
+};
+
static const struct attribute_group *etm_pmu_attr_groups[] = {
&etm_pmu_format_group,
+ &etm_pmu_sinks_group,
NULL,
};
@@ -118,25 +120,34 @@ static int etm_event_init(struct perf_event *event)
return ret;
}
+static void free_sink_buffer(struct etm_event_data *event_data)
+{
+ int cpu;
+ cpumask_t *mask = &event_data->mask;
+ struct coresight_device *sink;
+
+ if (!event_data->snk_config)
+ return;
+
+ if (WARN_ON(cpumask_empty(mask)))
+ return;
+
+ cpu = cpumask_first(mask);
+ sink = coresight_get_sink(etm_event_cpu_path(event_data, cpu));
+ sink_ops(sink)->free_buffer(event_data->snk_config);
+}
+
static void free_event_data(struct work_struct *work)
{
int cpu;
cpumask_t *mask;
struct etm_event_data *event_data;
- struct coresight_device *sink;
event_data = container_of(work, struct etm_event_data, work);
mask = &event_data->mask;
- /*
- * First deal with the sink configuration. See comment in
- * etm_setup_aux() about why we take the first available path.
- */
- if (event_data->snk_config) {
- cpu = cpumask_first(mask);
- sink = coresight_get_sink(etm_event_cpu_path(event_data, cpu));
- if (sink_ops(sink)->free_buffer)
- sink_ops(sink)->free_buffer(event_data->snk_config);
- }
+
+ /* Free the sink buffers, if there are any */
+ free_sink_buffer(event_data);
for_each_cpu(cpu, mask) {
struct list_head **ppath;
@@ -161,15 +172,12 @@ static void *alloc_event_data(int cpu)
if (!event_data)
return NULL;
- /* Make sure nothing disappears under us */
- get_online_cpus();
mask = &event_data->mask;
if (cpu != -1)
cpumask_set_cpu(cpu, mask);
else
- cpumask_copy(mask, cpu_online_mask);
- put_online_cpus();
+ cpumask_copy(mask, cpu_present_mask);
/*
* Each CPU has a single path between source and destination. As such
@@ -199,6 +207,7 @@ static void etm_free_aux(void *data)
static void *etm_setup_aux(struct perf_event *event, void **pages,
int nr_pages, bool overwrite)
{
+ u32 id;
int cpu = event->cpu;
cpumask_t *mask;
struct coresight_device *sink;
@@ -209,31 +218,40 @@ static void *etm_setup_aux(struct perf_event *event, void **pages,
return NULL;
INIT_WORK(&event_data->work, free_event_data);
- /*
- * In theory nothing prevent tracers in a trace session from being
- * associated with different sinks, nor having a sink per tracer. But
- * until we have HW with this kind of topology we need to assume tracers
- * in a trace session are using the same sink. Therefore go through
- * the coresight bus and pick the first enabled sink.
- *
- * When operated from sysFS users are responsible to enable the sink
- * while from perf, the perf tools will do it based on the choice made
- * on the cmd line. As such the "enable_sink" flag in sysFS is reset.
- */
- sink = coresight_get_enabled_sink(true);
+ /* First get the selected sink from user space. */
+ if (event->attr.config2) {
+ id = (u32)event->attr.config2;
+ sink = coresight_get_sink_by_id(id);
+ } else {
+ sink = coresight_get_enabled_sink(true);
+ }
+
if (!sink)
goto err;
mask = &event_data->mask;
- /* Setup the path for each CPU in a trace session */
+ /*
+ * Setup the path for each CPU in a trace session. We try to build
+ * trace path for each CPU in the mask. If we don't find an ETM
+ * for the CPU or fail to build a path, we clear the CPU from the
+ * mask and continue with the rest. If ever we try to trace on those
+ * CPUs, we can handle it and fail the session.
+ */
for_each_cpu(cpu, mask) {
struct list_head *path;
struct coresight_device *csdev;
csdev = per_cpu(csdev_src, cpu);
- if (!csdev)
- goto err;
+ /*
+ * If there is no ETM associated with this CPU clear it from
+ * the mask and continue with the rest. If ever we try to trace
+ * on this CPU, we handle it accordingly.
+ */
+ if (!csdev) {
+ cpumask_clear_cpu(cpu, mask);
+ continue;
+ }
/*
* Building a path doesn't enable it, it simply builds a
@@ -241,19 +259,25 @@ static void *etm_setup_aux(struct perf_event *event, void **pages,
* referenced later when the path is actually needed.
*/
path = coresight_build_path(csdev, sink);
- if (IS_ERR(path))
- goto err;
+ if (IS_ERR(path)) {
+ cpumask_clear_cpu(cpu, mask);
+ continue;
+ }
*etm_event_cpu_path_ptr(event_data, cpu) = path;
}
- if (!sink_ops(sink)->alloc_buffer)
+ /* If we don't have any CPUs ready for tracing, abort */
+ cpu = cpumask_first(mask);
+ if (cpu >= nr_cpu_ids)
goto err;
- cpu = cpumask_first(mask);
- /* Get the AUX specific data from the sink buffer */
+ if (!sink_ops(sink)->alloc_buffer || !sink_ops(sink)->free_buffer)
+ goto err;
+
+ /* Allocate the sink buffer for this session */
event_data->snk_config =
- sink_ops(sink)->alloc_buffer(sink, cpu, pages,
+ sink_ops(sink)->alloc_buffer(sink, event, pages,
nr_pages, overwrite);
if (!event_data->snk_config)
goto err;
@@ -286,19 +310,24 @@ static void etm_event_start(struct perf_event *event, int flags)
if (!event_data)
goto fail;
+ /*
+ * Check if this ETM is allowed to trace, as decided
+ * at etm_setup_aux(). This could be due to an unreachable
+ * sink from this ETM. We can't do much in this case if
+ * the sink was specified or hinted to the driver. For
+ * now, simply don't record anything on this ETM.
+ */
+ if (!cpumask_test_cpu(cpu, &event_data->mask))
+ goto fail_end_stop;
+
path = etm_event_cpu_path(event_data, cpu);
/* We need a sink, no need to continue without one */
sink = coresight_get_sink(path);
- if (WARN_ON_ONCE(!sink || !sink_ops(sink)->set_buffer))
- goto fail_end_stop;
-
- /* Configure the sink */
- if (sink_ops(sink)->set_buffer(sink, handle,
- event_data->snk_config))
+ if (WARN_ON_ONCE(!sink))
goto fail_end_stop;
/* Nothing will happen without a path */
- if (coresight_enable_path(path, CS_MODE_PERF))
+ if (coresight_enable_path(path, CS_MODE_PERF, handle))
goto fail_end_stop;
/* Tell the perf core the event is alive */
@@ -358,15 +387,8 @@ static void etm_event_stop(struct perf_event *event, int mode)
if (!sink_ops(sink)->update_buffer)
return;
- sink_ops(sink)->update_buffer(sink, handle,
+ size = sink_ops(sink)->update_buffer(sink, handle,
event_data->snk_config);
-
- if (!sink_ops(sink)->reset_buffer)
- return;
-
- size = sink_ops(sink)->reset_buffer(sink, handle,
- event_data->snk_config);
-
perf_aux_output_end(handle, size);
}
@@ -495,11 +517,84 @@ int etm_perf_symlink(struct coresight_device *csdev, bool link)
return 0;
}
+static ssize_t etm_perf_sink_name_show(struct device *dev,
+ struct device_attribute *dattr,
+ char *buf)
+{
+ struct dev_ext_attribute *ea;
+
+ ea = container_of(dattr, struct dev_ext_attribute, attr);
+ return scnprintf(buf, PAGE_SIZE, "0x%lx\n", (unsigned long)(ea->var));
+}
+
+int etm_perf_add_symlink_sink(struct coresight_device *csdev)
+{
+ int ret;
+ unsigned long hash;
+ const char *name;
+ struct device *pmu_dev = etm_pmu.dev;
+ struct device *dev = &csdev->dev;
+ struct dev_ext_attribute *ea;
+
+ if (csdev->type != CORESIGHT_DEV_TYPE_SINK &&
+ csdev->type != CORESIGHT_DEV_TYPE_LINKSINK)
+ return -EINVAL;
+
+ if (csdev->ea != NULL)
+ return -EINVAL;
+
+ if (!etm_perf_up)
+ return -EPROBE_DEFER;
+
+ ea = devm_kzalloc(dev, sizeof(*ea), GFP_KERNEL);
+ if (!ea)
+ return -ENOMEM;
+
+ name = dev_name(dev);
+ /* See function coresight_get_sink_by_id() to know where this is used */
+ hash = hashlen_hash(hashlen_string(NULL, name));
+
+ sysfs_attr_init(&ea->attr.attr);
+ ea->attr.attr.name = devm_kstrdup(dev, name, GFP_KERNEL);
+ if (!ea->attr.attr.name)
+ return -ENOMEM;
+
+ ea->attr.attr.mode = 0444;
+ ea->attr.show = etm_perf_sink_name_show;
+ ea->var = (unsigned long *)hash;
+
+ ret = sysfs_add_file_to_group(&pmu_dev->kobj,
+ &ea->attr.attr, "sinks");
+
+ if (!ret)
+ csdev->ea = ea;
+
+ return ret;
+}
+
+void etm_perf_del_symlink_sink(struct coresight_device *csdev)
+{
+ struct device *pmu_dev = etm_pmu.dev;
+ struct dev_ext_attribute *ea = csdev->ea;
+
+ if (csdev->type != CORESIGHT_DEV_TYPE_SINK &&
+ csdev->type != CORESIGHT_DEV_TYPE_LINKSINK)
+ return;
+
+ if (!ea)
+ return;
+
+ sysfs_remove_file_from_group(&pmu_dev->kobj,
+ &ea->attr.attr, "sinks");
+ csdev->ea = NULL;
+}
+
static int __init etm_perf_init(void)
{
int ret;
- etm_pmu.capabilities = PERF_PMU_CAP_EXCLUSIVE;
+ etm_pmu.capabilities = (PERF_PMU_CAP_EXCLUSIVE |
+ PERF_PMU_CAP_ITRACE);
etm_pmu.attr_groups = etm_pmu_attr_groups;
etm_pmu.task_ctx_nr = perf_sw_context;
diff --git a/drivers/hwtracing/coresight/coresight-etm-perf.h b/drivers/hwtracing/coresight/coresight-etm-perf.h
index 4197df4..015213a 100644
--- a/drivers/hwtracing/coresight/coresight-etm-perf.h
+++ b/drivers/hwtracing/coresight/coresight-etm-perf.h
@@ -7,6 +7,7 @@
#ifndef _CORESIGHT_ETM_PERF_H
#define _CORESIGHT_ETM_PERF_H
+#include <linux/percpu-defs.h>
#include "coresight-priv.h"
struct coresight_device;
@@ -42,13 +43,42 @@ struct etm_filters {
bool ssstatus;
};
+/**
+ * struct etm_event_data - Coresight specifics associated to an event
+ * @work: Handle to free allocated memory outside IRQ context.
+ * @mask: Hold the CPU(s) this event was set for.
+ * @snk_config: The sink configuration.
+ * @path: An array of path, each slot for one CPU.
+ */
+struct etm_event_data {
+ struct work_struct work;
+ cpumask_t mask;
+ void *snk_config;
+ struct list_head * __percpu *path;
+};
#ifdef CONFIG_CORESIGHT
int etm_perf_symlink(struct coresight_device *csdev, bool link);
+int etm_perf_add_symlink_sink(struct coresight_device *csdev);
+void etm_perf_del_symlink_sink(struct coresight_device *csdev);
+static inline void *etm_perf_sink_config(struct perf_output_handle *handle)
+{
+ struct etm_event_data *data = perf_get_aux(handle);
+ if (data)
+ return data->snk_config;
+ return NULL;
+}
#else
static inline int etm_perf_symlink(struct coresight_device *csdev, bool link)
{ return -EINVAL; }
+int etm_perf_add_symlink_sink(struct coresight_device *csdev)
+{ return -EINVAL; }
+void etm_perf_del_symlink_sink(struct coresight_device *csdev) {}
+static inline void *etm_perf_sink_config(struct perf_output_handle *handle)
+{
+ return NULL;
+}
#endif /* CONFIG_CORESIGHT */
diff --git a/drivers/hwtracing/coresight/coresight-etm3x.c b/drivers/hwtracing/coresight/coresight-etm3x.c
index 7c74263..fd5c4cc 100644
--- a/drivers/hwtracing/coresight/coresight-etm3x.c
+++ b/drivers/hwtracing/coresight/coresight-etm3x.c
@@ -355,11 +355,10 @@ static int etm_parse_event_config(struct etm_drvdata *drvdata,
return 0;
}
-static void etm_enable_hw(void *info)
+static int etm_enable_hw(struct etm_drvdata *drvdata)
{
- int i;
+ int i, rc;
u32 etmcr;
- struct etm_drvdata *drvdata = info;
struct etm_config *config = &drvdata->config;
CS_UNLOCK(drvdata->base);
@@ -370,6 +369,9 @@ static void etm_enable_hw(void *info)
etm_set_pwrup(drvdata);
/* Make sure all registers are accessible */
etm_os_unlock(drvdata);
+ rc = coresight_claim_device_unlocked(drvdata->base);
+ if (rc)
+ goto done;
etm_set_prog(drvdata);
@@ -418,9 +420,29 @@ static void etm_enable_hw(void *info)
etm_writel(drvdata, 0x0, ETMVMIDCVR);
etm_clr_prog(drvdata);
+
+done:
+ if (rc)
+ etm_set_pwrdwn(drvdata);
CS_LOCK(drvdata->base);
- dev_dbg(drvdata->dev, "cpu: %d enable smp call done\n", drvdata->cpu);
+ dev_dbg(drvdata->dev, "cpu: %d enable smp call done: %d\n",
+ drvdata->cpu, rc);
+ return rc;
+}
+
+struct etm_enable_arg {
+ struct etm_drvdata *drvdata;
+ int rc;
+};
+
+static void etm_enable_hw_smp_call(void *info)
+{
+ struct etm_enable_arg *arg = info;
+
+ if (WARN_ON(!arg))
+ return;
+ arg->rc = etm_enable_hw(arg->drvdata);
}
static int etm_cpu_id(struct coresight_device *csdev)
@@ -475,14 +497,13 @@ static int etm_enable_perf(struct coresight_device *csdev,
/* Configure the tracer based on the session's specifics */
etm_parse_event_config(drvdata, event);
/* And enable it */
- etm_enable_hw(drvdata);
-
- return 0;
+ return etm_enable_hw(drvdata);
}
static int etm_enable_sysfs(struct coresight_device *csdev)
{
struct etm_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
+ struct etm_enable_arg arg = { 0 };
int ret;
spin_lock(&drvdata->spinlock);
@@ -492,20 +513,21 @@ static int etm_enable_sysfs(struct coresight_device *csdev)
* hw configuration will take place on the local CPU during bring up.
*/
if (cpu_online(drvdata->cpu)) {
+ arg.drvdata = drvdata;
ret = smp_call_function_single(drvdata->cpu,
- etm_enable_hw, drvdata, 1);
- if (ret)
- goto err;
+ etm_enable_hw_smp_call, &arg, 1);
+ if (!ret)
+ ret = arg.rc;
+ if (!ret)
+ drvdata->sticky_enable = true;
+ } else {
+ ret = -ENODEV;
}
- drvdata->sticky_enable = true;
spin_unlock(&drvdata->spinlock);
- dev_info(drvdata->dev, "ETM tracing enabled\n");
- return 0;
-
-err:
- spin_unlock(&drvdata->spinlock);
+ if (!ret)
+ dev_dbg(drvdata->dev, "ETM tracing enabled\n");
return ret;
}
@@ -555,6 +577,8 @@ static void etm_disable_hw(void *info)
for (i = 0; i < drvdata->nr_cntr; i++)
config->cntr_val[i] = etm_readl(drvdata, ETMCNTVRn(i));
+ coresight_disclaim_device_unlocked(drvdata->base);
+
etm_set_pwrdwn(drvdata);
CS_LOCK(drvdata->base);
@@ -604,7 +628,7 @@ static void etm_disable_sysfs(struct coresight_device *csdev)
spin_unlock(&drvdata->spinlock);
cpus_read_unlock();
- dev_info(drvdata->dev, "ETM tracing disabled\n");
+ dev_dbg(drvdata->dev, "ETM tracing disabled\n");
}
static void etm_disable(struct coresight_device *csdev,
diff --git a/drivers/hwtracing/coresight/coresight-etm4x.c b/drivers/hwtracing/coresight/coresight-etm4x.c
index b7bc08c..66a9c6c 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x.c
+++ b/drivers/hwtracing/coresight/coresight-etm4x.c
@@ -18,6 +18,7 @@
#include <linux/stat.h>
#include <linux/clk.h>
#include <linux/cpu.h>
+#include <linux/cpu_pm.h>
#include <linux/coresight.h>
#include <linux/coresight-pmu.h>
#include <linux/pm_wakeup.h>
@@ -26,6 +27,7 @@
#include <linux/uaccess.h>
#include <linux/perf_event.h>
#include <linux/pm_runtime.h>
+#include <linux/property.h>
#include <asm/sections.h>
#include <asm/local.h>
#include <asm/virt.h>
@@ -36,6 +38,15 @@
static int boot_enable;
module_param_named(boot_enable, boot_enable, int, S_IRUGO);
+#define PARAM_PM_SAVE_FIRMWARE 0 /* save self-hosted state as per firmware */
+#define PARAM_PM_SAVE_NEVER 1 /* never save any state */
+#define PARAM_PM_SAVE_SELF_HOSTED 2 /* save self-hosted state only */
+
+static int pm_save_enable = PARAM_PM_SAVE_FIRMWARE;
+module_param(pm_save_enable, int, 0444);
+MODULE_PARM_DESC(pm_save_enable,
+ "Save/restore state on power down: 1 = never, 2 = self-hosted");
+
/* The number of ETMv4 currently registered */
static int etm4_count;
static struct etmv4_drvdata *etmdrvdata[NR_CPUS];
@@ -53,6 +64,14 @@ static void etm4_os_unlock(struct etmv4_drvdata *drvdata)
isb();
}
+static void etm4_os_lock(struct etmv4_drvdata *drvdata)
+{
+ /* Writing 0x1 to TRCOSLAR locks the trace registers */
+ writel_relaxed(0x1, drvdata->base + TRCOSLAR);
+ drvdata->os_unlock = false;
+ isb();
+}
+
static bool etm4_arch_supported(u8 arch)
{
/* Mask out the minor version number */
@@ -79,16 +98,24 @@ static int etm4_trace_id(struct coresight_device *csdev)
return drvdata->trcid;
}
-static void etm4_enable_hw(void *info)
+struct etm4_enable_arg {
+ struct etmv4_drvdata *drvdata;
+ int rc;
+};
+
+static int etm4_enable_hw(struct etmv4_drvdata *drvdata)
{
- int i;
- struct etmv4_drvdata *drvdata = info;
+ int i, rc;
struct etmv4_config *config = &drvdata->config;
CS_UNLOCK(drvdata->base);
etm4_os_unlock(drvdata);
+ rc = coresight_claim_device_unlocked(drvdata->base);
+ if (rc)
+ goto done;
+
/* Disable the trace unit before programming trace registers */
writel_relaxed(0, drvdata->base + TRCPRGCTLR);
@@ -130,8 +157,11 @@ static void etm4_enable_hw(void *info)
drvdata->base + TRCCNTVRn(i));
}
- /* Resource selector pair 0 is always implemented and reserved */
- for (i = 0; i < drvdata->nr_resource * 2; i++)
+ /*
+ * Resource selector pair 0 is always implemented and reserved. As
+ * such start at 2.
+ */
+ for (i = 2; i < drvdata->nr_resource * 2; i++)
writel_relaxed(config->res_ctrl[i],
drvdata->base + TRCRSCTLRn(i));
@@ -182,9 +212,106 @@ static void etm4_enable_hw(void *info)
dsb(sy);
isb();
+done:
CS_LOCK(drvdata->base);
- dev_dbg(drvdata->dev, "cpu: %d enable smp call done\n", drvdata->cpu);
+ dev_dbg(drvdata->dev, "cpu: %d enable smp call done: %d\n",
+ drvdata->cpu, rc);
+ return rc;
+}
+
+static void etm4_enable_hw_smp_call(void *info)
+{
+ struct etm4_enable_arg *arg = info;
+
+ if (WARN_ON(!arg))
+ return;
+ arg->rc = etm4_enable_hw(arg->drvdata);
+}
+
+/*
+ * The goal of function etm4_config_timestamp_event() is to configure a
+ * counter that will tell the tracer to emit a timestamp packet when it
+ * reaches zero. This is done in order to get a more fine grained idea
+ * of when instructions are executed so that they can be correlated
+ * with execution on other CPUs.
+ *
+ * To do this the counter itself is configured to self reload and
+ * TRCRSCTLR1 (always true) used to get the counter to decrement. From
+ * there a resource selector is configured with the counter and the
+ * timestamp control register to use the resource selector to trigger the
+ * event that will insert a timestamp packet in the stream.
+ */
+static int etm4_config_timestamp_event(struct etmv4_drvdata *drvdata)
+{
+ int ctridx, ret = -EINVAL;
+ int counter, rselector;
+ u32 val = 0;
+ struct etmv4_config *config = &drvdata->config;
+
+ /* No point in trying if we don't have at least one counter */
+ if (!drvdata->nr_cntr)
+ goto out;
+
+ /* Find a counter that hasn't been initialised */
+ for (ctridx = 0; ctridx < drvdata->nr_cntr; ctridx++)
+ if (config->cntr_val[ctridx] == 0)
+ break;
+
+ /* All the counters have been configured already, bail out */
+ if (ctridx == drvdata->nr_cntr) {
+ pr_debug("%s: no available counter found\n", __func__);
+ ret = -ENOSPC;
+ goto out;
+ }
+
+ /*
+ * Searching for an available resource selector to use, starting at
+ * '2' since every implementation has at least 2 resource selector.
+ * ETMIDR4 gives the number of resource selector _pairs_,
+ * hence multiply by 2.
+ */
+ for (rselector = 2; rselector < drvdata->nr_resource * 2; rselector++)
+ if (!config->res_ctrl[rselector])
+ break;
+
+ if (rselector == drvdata->nr_resource * 2) {
+ pr_debug("%s: no available resource selector found\n",
+ __func__);
+ ret = -ENOSPC;
+ goto out;
+ }
+
+ /* Remember what counter we used */
+ counter = 1 << ctridx;
+
+ /*
+ * Initialise original and reload counter value to the smallest
+ * possible value in order to get as much precision as we can.
+ */
+ config->cntr_val[ctridx] = 1;
+ config->cntrldvr[ctridx] = 1;
+
+ /* Set the trace counter control register */
+ val = 0x1 << 16 | /* Bit 16, reload counter automatically */
+ 0x0 << 7 | /* Select single resource selector */
+ 0x1; /* Resource selector 1, i.e always true */
+
+ config->cntr_ctrl[ctridx] = val;
+
+ val = 0x2 << 16 | /* Group 0b0010 - Counter and sequencers */
+ counter << 0; /* Counter to use */
+
+ config->res_ctrl[rselector] = val;
+
+ val = 0x0 << 7 | /* Select single resource selector */
+ rselector; /* Resource selector */
+
+ config->ts_ctrl = val;
+
+ ret = 0;
+out:
+ return ret;
}
static int etm4_parse_event_config(struct etmv4_drvdata *drvdata,
@@ -222,9 +349,29 @@ static int etm4_parse_event_config(struct etmv4_drvdata *drvdata,
/* TRM: Must program this for cycacc to work */
config->ccctlr = ETM_CYC_THRESHOLD_DEFAULT;
}
- if (attr->config & BIT(ETM_OPT_TS))
+ if (attr->config & BIT(ETM_OPT_TS)) {
+ /*
+ * Configure timestamps to be emitted at regular intervals in
+ * order to correlate instructions executed on different CPUs
+ * (CPU-wide trace scenarios).
+ */
+ ret = etm4_config_timestamp_event(drvdata);
+
+ /*
+ * No need to go further if timestamp intervals can't
+ * be configured.
+ */
+ if (ret)
+ goto out;
+
/* bit[11], Global timestamp tracing bit */
config->cfg |= BIT(11);
+ }
+
+ if (attr->config & BIT(ETM_OPT_CTXTID))
+ /* bit[6], Context ID tracing bit */
+ config->cfg |= BIT(ETM4_CFG_BIT_CTXTID);
+
/* return stack - enable if selected and supported */
if ((attr->config & BIT(ETM_OPT_RETSTK)) && drvdata->retstack)
/* bit[12], Return stack enable bit */
@@ -250,7 +397,7 @@ static int etm4_enable_perf(struct coresight_device *csdev,
if (ret)
goto out;
/* And enable it */
- etm4_enable_hw(drvdata);
+ ret = etm4_enable_hw(drvdata);
out:
return ret;
@@ -259,6 +406,7 @@ static int etm4_enable_perf(struct coresight_device *csdev,
static int etm4_enable_sysfs(struct coresight_device *csdev)
{
struct etmv4_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
+ struct etm4_enable_arg arg = { 0 };
int ret;
spin_lock(&drvdata->spinlock);
@@ -267,19 +415,17 @@ static int etm4_enable_sysfs(struct coresight_device *csdev)
* Executing etm4_enable_hw on the cpu whose ETM is being enabled
* ensures that register writes occur when cpu is powered.
*/
+ arg.drvdata = drvdata;
ret = smp_call_function_single(drvdata->cpu,
- etm4_enable_hw, drvdata, 1);
- if (ret)
- goto err;
-
- drvdata->sticky_enable = true;
+ etm4_enable_hw_smp_call, &arg, 1);
+ if (!ret)
+ ret = arg.rc;
+ if (!ret)
+ drvdata->sticky_enable = true;
spin_unlock(&drvdata->spinlock);
- dev_info(drvdata->dev, "ETM tracing enabled\n");
- return 0;
-
-err:
- spin_unlock(&drvdata->spinlock);
+ if (!ret)
+ dev_dbg(drvdata->dev, "ETM tracing enabled\n");
return ret;
}
@@ -340,6 +486,8 @@ static void etm4_disable_hw(void *info)
isb();
writel_relaxed(control, drvdata->base + TRCPRGCTLR);
+ coresight_disclaim_device_unlocked(drvdata->base);
+
CS_LOCK(drvdata->base);
dev_dbg(drvdata->dev, "cpu: %d disable smp call done\n", drvdata->cpu);
@@ -392,7 +540,7 @@ static void etm4_disable_sysfs(struct coresight_device *csdev)
spin_unlock(&drvdata->spinlock);
cpus_read_unlock();
- dev_info(drvdata->dev, "ETM tracing disabled\n");
+ dev_dbg(drvdata->dev, "ETM tracing disabled\n");
}
static void etm4_disable(struct coresight_device *csdev,
@@ -954,6 +1102,287 @@ static void etm4_init_trace_id(struct etmv4_drvdata *drvdata)
drvdata->trcid = coresight_get_trace_id(drvdata->cpu);
}
+static int etm4_cpu_save(struct etmv4_drvdata *drvdata)
+{
+ int i, ret = 0;
+ struct etmv4_save_state *state;
+ struct device *etm_dev = &drvdata->csdev->dev;
+
+ /*
+ * As recommended by 3.4.1 ("The procedure when powering down the PE")
+ * of ARM IHI 0064D
+ */
+ dsb(sy);
+ isb();
+
+ CS_UNLOCK(drvdata->base);
+
+ /* Lock the OS lock to disable trace and external debugger access */
+ etm4_os_lock(drvdata);
+
+ /* wait for TRCSTATR.PMSTABLE to go up */
+ if (coresight_timeout(drvdata->base, TRCSTATR,
+ TRCSTATR_PMSTABLE_BIT, 1)) {
+ dev_err(etm_dev,
+ "timeout while waiting for PM Stable Status\n");
+ etm4_os_unlock(drvdata);
+ ret = -EBUSY;
+ goto out;
+ }
+
+ state = drvdata->save_state;
+
+ state->trcprgctlr = readl(drvdata->base + TRCPRGCTLR);
+ state->trcprocselr = readl(drvdata->base + TRCPROCSELR);
+ state->trcconfigr = readl(drvdata->base + TRCCONFIGR);
+ state->trcauxctlr = readl(drvdata->base + TRCAUXCTLR);
+ state->trceventctl0r = readl(drvdata->base + TRCEVENTCTL0R);
+ state->trceventctl1r = readl(drvdata->base + TRCEVENTCTL1R);
+ state->trcstallctlr = readl(drvdata->base + TRCSTALLCTLR);
+ state->trctsctlr = readl(drvdata->base + TRCTSCTLR);
+ state->trcsyncpr = readl(drvdata->base + TRCSYNCPR);
+ state->trcccctlr = readl(drvdata->base + TRCCCCTLR);
+ state->trcbbctlr = readl(drvdata->base + TRCBBCTLR);
+ state->trctraceidr = readl(drvdata->base + TRCTRACEIDR);
+ state->trcqctlr = readl(drvdata->base + TRCQCTLR);
+
+ state->trcvictlr = readl(drvdata->base + TRCVICTLR);
+ state->trcviiectlr = readl(drvdata->base + TRCVIIECTLR);
+ state->trcvissctlr = readl(drvdata->base + TRCVISSCTLR);
+ state->trcvipcssctlr = readl(drvdata->base + TRCVIPCSSCTLR);
+ state->trcvdctlr = readl(drvdata->base + TRCVDCTLR);
+ state->trcvdsacctlr = readl(drvdata->base + TRCVDSACCTLR);
+ state->trcvdarcctlr = readl(drvdata->base + TRCVDARCCTLR);
+
+ for (i = 0; i < drvdata->nrseqstate - 1; i++)
+ state->trcseqevr[i] = readl(drvdata->base + TRCSEQEVRn(i));
+
+ state->trcseqrstevr = readl(drvdata->base + TRCSEQRSTEVR);
+ state->trcseqstr = readl(drvdata->base + TRCSEQSTR);
+ state->trcextinselr = readl(drvdata->base + TRCEXTINSELR);
+
+ for (i = 0; i < drvdata->nr_cntr; i++) {
+ state->trccntrldvr[i] = readl(drvdata->base + TRCCNTRLDVRn(i));
+ state->trccntctlr[i] = readl(drvdata->base + TRCCNTCTLRn(i));
+ state->trccntvr[i] = readl(drvdata->base + TRCCNTVRn(i));
+ }
+
+ for (i = 0; i < drvdata->nr_resource * 2; i++)
+ state->trcrsctlr[i] = readl(drvdata->base + TRCRSCTLRn(i));
+
+ for (i = 0; i < drvdata->nr_ss_cmp; i++) {
+ state->trcssccr[i] = readl(drvdata->base + TRCSSCCRn(i));
+ state->trcsscsr[i] = readl(drvdata->base + TRCSSCSRn(i));
+ state->trcsspcicr[i] = readl(drvdata->base + TRCSSPCICRn(i));
+ }
+
+ for (i = 0; i < drvdata->nr_addr_cmp * 2; i++) {
+ state->trcacvr[i] = readq(drvdata->base + TRCACVRn(i));
+ state->trcacatr[i] = readq(drvdata->base + TRCACATRn(i));
+ }
+
+ /*
+ * Data trace stream is architecturally prohibited for A profile cores
+ * so we don't save (or later restore) trcdvcvr and trcdvcmr - As per
+ * section 1.3.4 ("Possible functional configurations of an ETMv4 trace
+ * unit") of ARM IHI 0064D.
+ */
+
+ for (i = 0; i < drvdata->numcidc; i++)
+ state->trccidcvr[i] = readq(drvdata->base + TRCCIDCVRn(i));
+
+ for (i = 0; i < drvdata->numvmidc; i++)
+ state->trcvmidcvr[i] = readq(drvdata->base + TRCVMIDCVRn(i));
+
+ state->trccidcctlr0 = readl(drvdata->base + TRCCIDCCTLR0);
+ state->trccidcctlr1 = readl(drvdata->base + TRCCIDCCTLR1);
+
+ state->trcvmidcctlr0 = readl(drvdata->base + TRCVMIDCCTLR0);
+ state->trcvmidcctlr1 = readl(drvdata->base + TRCVMIDCCTLR1);
+
+ state->trcclaimset = readl(drvdata->base + TRCCLAIMCLR);
+
+ state->trcpdcr = readl(drvdata->base + TRCPDCR);
+
+ /* wait for TRCSTATR.IDLE to go up */
+ if (coresight_timeout(drvdata->base, TRCSTATR, TRCSTATR_IDLE_BIT, 1)) {
+ dev_err(etm_dev,
+ "timeout while waiting for Idle Trace Status\n");
+ etm4_os_unlock(drvdata);
+ ret = -EBUSY;
+ goto out;
+ }
+
+ drvdata->state_needs_restore = true;
+
+ /*
+ * Power can be removed from the trace unit now. We do this to
+ * potentially save power on systems that respect the TRCPDCR_PU
+ * despite requesting software to save/restore state.
+ */
+ writel_relaxed((state->trcpdcr & ~TRCPDCR_PU),
+ drvdata->base + TRCPDCR);
+
+out:
+ CS_LOCK(drvdata->base);
+ return ret;
+}
+
+static void etm4_cpu_restore(struct etmv4_drvdata *drvdata)
+{
+ int i;
+ struct etmv4_save_state *state = drvdata->save_state;
+
+ CS_UNLOCK(drvdata->base);
+
+ writel_relaxed(state->trcclaimset, drvdata->base + TRCCLAIMSET);
+
+ writel_relaxed(state->trcprgctlr, drvdata->base + TRCPRGCTLR);
+ writel_relaxed(state->trcprocselr, drvdata->base + TRCPROCSELR);
+ writel_relaxed(state->trcconfigr, drvdata->base + TRCCONFIGR);
+ writel_relaxed(state->trcauxctlr, drvdata->base + TRCAUXCTLR);
+ writel_relaxed(state->trceventctl0r, drvdata->base + TRCEVENTCTL0R);
+ writel_relaxed(state->trceventctl1r, drvdata->base + TRCEVENTCTL1R);
+ writel_relaxed(state->trcstallctlr, drvdata->base + TRCSTALLCTLR);
+ writel_relaxed(state->trctsctlr, drvdata->base + TRCTSCTLR);
+ writel_relaxed(state->trcsyncpr, drvdata->base + TRCSYNCPR);
+ writel_relaxed(state->trcccctlr, drvdata->base + TRCCCCTLR);
+ writel_relaxed(state->trcbbctlr, drvdata->base + TRCBBCTLR);
+ writel_relaxed(state->trctraceidr, drvdata->base + TRCTRACEIDR);
+ writel_relaxed(state->trcqctlr, drvdata->base + TRCQCTLR);
+
+ writel_relaxed(state->trcvictlr, drvdata->base + TRCVICTLR);
+ writel_relaxed(state->trcviiectlr, drvdata->base + TRCVIIECTLR);
+ writel_relaxed(state->trcvissctlr, drvdata->base + TRCVISSCTLR);
+ writel_relaxed(state->trcvipcssctlr, drvdata->base + TRCVIPCSSCTLR);
+ writel_relaxed(state->trcvdctlr, drvdata->base + TRCVDCTLR);
+ writel_relaxed(state->trcvdsacctlr, drvdata->base + TRCVDSACCTLR);
+ writel_relaxed(state->trcvdarcctlr, drvdata->base + TRCVDARCCTLR);
+
+ for (i = 0; i < drvdata->nrseqstate - 1; i++)
+ writel_relaxed(state->trcseqevr[i],
+ drvdata->base + TRCSEQEVRn(i));
+
+ writel_relaxed(state->trcseqrstevr, drvdata->base + TRCSEQRSTEVR);
+ writel_relaxed(state->trcseqstr, drvdata->base + TRCSEQSTR);
+ writel_relaxed(state->trcextinselr, drvdata->base + TRCEXTINSELR);
+
+ for (i = 0; i < drvdata->nr_cntr; i++) {
+ writel_relaxed(state->trccntrldvr[i],
+ drvdata->base + TRCCNTRLDVRn(i));
+ writel_relaxed(state->trccntctlr[i],
+ drvdata->base + TRCCNTCTLRn(i));
+ writel_relaxed(state->trccntvr[i],
+ drvdata->base + TRCCNTVRn(i));
+ }
+
+ for (i = 0; i < drvdata->nr_resource * 2; i++)
+ writel_relaxed(state->trcrsctlr[i],
+ drvdata->base + TRCRSCTLRn(i));
+
+ for (i = 0; i < drvdata->nr_ss_cmp; i++) {
+ writel_relaxed(state->trcssccr[i],
+ drvdata->base + TRCSSCCRn(i));
+ writel_relaxed(state->trcsscsr[i],
+ drvdata->base + TRCSSCSRn(i));
+ writel_relaxed(state->trcsspcicr[i],
+ drvdata->base + TRCSSPCICRn(i));
+ }
+
+ for (i = 0; i < drvdata->nr_addr_cmp * 2; i++) {
+ writeq_relaxed(state->trcacvr[i],
+ drvdata->base + TRCACVRn(i));
+ writeq_relaxed(state->trcacatr[i],
+ drvdata->base + TRCACATRn(i));
+ }
+
+ for (i = 0; i < drvdata->numcidc; i++)
+ writeq_relaxed(state->trccidcvr[i],
+ drvdata->base + TRCCIDCVRn(i));
+
+ for (i = 0; i < drvdata->numvmidc; i++)
+ writeq_relaxed(state->trcvmidcvr[i],
+ drvdata->base + TRCVMIDCVRn(i));
+
+ writel_relaxed(state->trccidcctlr0, drvdata->base + TRCCIDCCTLR0);
+ writel_relaxed(state->trccidcctlr1, drvdata->base + TRCCIDCCTLR1);
+
+ writel_relaxed(state->trcvmidcctlr0, drvdata->base + TRCVMIDCCTLR0);
+ writel_relaxed(state->trcvmidcctlr1, drvdata->base + TRCVMIDCCTLR1);
+
+ writel_relaxed(state->trcclaimset, drvdata->base + TRCCLAIMSET);
+
+ writel_relaxed(state->trcpdcr, drvdata->base + TRCPDCR);
+
+ drvdata->state_needs_restore = false;
+
+ /*
+ * As recommended by section 4.3.7 ("Synchronization when using the
+ * memory-mapped interface") of ARM IHI 0064D
+ */
+ dsb(sy);
+ isb();
+
+ /* Unlock the OS lock to re-enable trace and external debug access */
+ etm4_os_unlock(drvdata);
+ CS_LOCK(drvdata->base);
+}
+
+static int etm4_cpu_pm_notify(struct notifier_block *nb, unsigned long cmd,
+ void *v)
+{
+ struct etmv4_drvdata *drvdata;
+ unsigned int cpu = smp_processor_id();
+
+ if (!etmdrvdata[cpu])
+ return NOTIFY_OK;
+
+ drvdata = etmdrvdata[cpu];
+
+ if (!drvdata->save_state)
+ return NOTIFY_OK;
+
+ if (WARN_ON_ONCE(drvdata->cpu != cpu))
+ return NOTIFY_BAD;
+
+ switch (cmd) {
+ case CPU_PM_ENTER:
+ /* save the state if self-hosted coresight is in use */
+ if (local_read(&drvdata->mode))
+ if (etm4_cpu_save(drvdata))
+ return NOTIFY_BAD;
+ break;
+ case CPU_PM_EXIT:
+ /* fallthrough */
+ case CPU_PM_ENTER_FAILED:
+ if (drvdata->state_needs_restore)
+ etm4_cpu_restore(drvdata);
+ break;
+ default:
+ return NOTIFY_DONE;
+ }
+
+ return NOTIFY_OK;
+}
+
+static struct notifier_block etm4_cpu_pm_nb = {
+ .notifier_call = etm4_cpu_pm_notify,
+};
+
+static int etm4_cpu_pm_register(void)
+{
+ if (IS_ENABLED(CONFIG_CPU_PM))
+ return cpu_pm_register_notifier(&etm4_cpu_pm_nb);
+
+ return 0;
+}
+
+static void etm4_cpu_pm_unregister(void)
+{
+ if (IS_ENABLED(CONFIG_CPU_PM))
+ cpu_pm_unregister_notifier(&etm4_cpu_pm_nb);
+}
+
static int etm4_probe(struct amba_device *adev, const struct amba_id *id)
{
int ret;
@@ -979,6 +1408,17 @@ static int etm4_probe(struct amba_device *adev, const struct amba_id *id)
drvdata->dev = &adev->dev;
dev_set_drvdata(dev, drvdata);
+ if (pm_save_enable == PARAM_PM_SAVE_FIRMWARE)
+ pm_save_enable = coresight_loses_context_with_cpu(dev) ?
+ PARAM_PM_SAVE_SELF_HOSTED : PARAM_PM_SAVE_NEVER;
+
+ if (pm_save_enable != PARAM_PM_SAVE_NEVER) {
+ drvdata->save_state = devm_kmalloc(dev,
+ sizeof(struct etmv4_save_state), GFP_KERNEL);
+ if (!drvdata->save_state)
+ return -ENOMEM;
+ }
+
/* Validity for the resource is already checked by the AMBA core */
base = devm_ioremap_resource(dev, res);
if (IS_ERR(base))
@@ -1007,6 +1447,10 @@ static int etm4_probe(struct amba_device *adev, const struct amba_id *id)
if (ret < 0)
goto err_arch_supported;
hp_online = ret;
+
+ ret = etm4_cpu_pm_register();
+ if (ret)
+ goto err_arch_supported;
}
cpus_read_unlock();
@@ -1049,7 +1493,10 @@ static int etm4_probe(struct amba_device *adev, const struct amba_id *id)
return 0;
err_arch_supported:
+ etmdrvdata[drvdata->cpu] = NULL;
if (--etm4_count == 0) {
+ etm4_cpu_pm_unregister();
+
cpuhp_remove_state_nocalls(CPUHP_AP_ARM_CORESIGHT_STARTING);
if (hp_online)
cpuhp_remove_state_nocalls(hp_online);
diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h
index 52786e9..a0a953b 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x.h
+++ b/drivers/hwtracing/coresight/coresight-etm4x.h
@@ -175,6 +175,7 @@
ETM_MODE_EXCL_USER)
#define TRCSTATR_IDLE_BIT 0
+#define TRCSTATR_PMSTABLE_BIT 1
#define ETM_DEFAULT_ADDR_COMP 0
/* PowerDown Control Register bits */
@@ -282,6 +283,65 @@ struct etmv4_config {
};
/**
+ * struct etm4_save_state - state to be preserved when ETM is without power
+ */
+struct etmv4_save_state {
+ u32 trcprgctlr;
+ u32 trcprocselr;
+ u32 trcconfigr;
+ u32 trcauxctlr;
+ u32 trceventctl0r;
+ u32 trceventctl1r;
+ u32 trcstallctlr;
+ u32 trctsctlr;
+ u32 trcsyncpr;
+ u32 trcccctlr;
+ u32 trcbbctlr;
+ u32 trctraceidr;
+ u32 trcqctlr;
+
+ u32 trcvictlr;
+ u32 trcviiectlr;
+ u32 trcvissctlr;
+ u32 trcvipcssctlr;
+ u32 trcvdctlr;
+ u32 trcvdsacctlr;
+ u32 trcvdarcctlr;
+
+ u32 trcseqevr[ETM_MAX_SEQ_STATES];
+ u32 trcseqrstevr;
+ u32 trcseqstr;
+ u32 trcextinselr;
+ u32 trccntrldvr[ETMv4_MAX_CNTR];
+ u32 trccntctlr[ETMv4_MAX_CNTR];
+ u32 trccntvr[ETMv4_MAX_CNTR];
+
+ u32 trcrsctlr[ETM_MAX_RES_SEL * 2];
+
+ u32 trcssccr[ETM_MAX_SS_CMP];
+ u32 trcsscsr[ETM_MAX_SS_CMP];
+ u32 trcsspcicr[ETM_MAX_SS_CMP];
+
+ u64 trcacvr[ETM_MAX_SINGLE_ADDR_CMP];
+ u64 trcacatr[ETM_MAX_SINGLE_ADDR_CMP];
+ u64 trccidcvr[ETMv4_MAX_CTXID_CMP];
+ u64 trcvmidcvr[ETM_MAX_VMID_CMP];
+ u32 trccidcctlr0;
+ u32 trccidcctlr1;
+ u32 trcvmidcctlr0;
+ u32 trcvmidcctlr1;
+
+ u32 trcclaimset;
+
+ u32 cntr_val[ETMv4_MAX_CNTR];
+ u32 seq_state;
+ u32 vinst_ctrl;
+ u32 ss_status[ETM_MAX_SS_CMP];
+
+ u32 trcpdcr;
+};
+
+/**
* struct etm4_drvdata - specifics associated to an ETM component
* @base: Memory mapped base address for this component.
* @dev: The device entity associated to this component.
@@ -337,6 +397,8 @@ struct etmv4_config {
* @atbtrig: If the implementation can support ATB triggers
* @lpoverride: If the implementation can support low-power state over.
* @config: structure holding configuration parameters.
+ * @save_state: State to be preserved across power loss
+ * @state_needs_restore: True when there is context to restore after PM exit
*/
struct etmv4_drvdata {
void __iomem *base;
@@ -383,6 +445,8 @@ struct etmv4_drvdata {
bool atbtrig;
bool lpoverride;
struct etmv4_config config;
+ struct etmv4_save_state *save_state;
+ bool state_needs_restore;
};
/* Address comparator access types */
diff --git a/drivers/hwtracing/coresight/coresight-funnel.c b/drivers/hwtracing/coresight/coresight-funnel.c
index 448145a..1b4a25b 100644
--- a/drivers/hwtracing/coresight/coresight-funnel.c
+++ b/drivers/hwtracing/coresight/coresight-funnel.c
@@ -12,6 +12,8 @@
#include <linux/err.h>
#include <linux/fs.h>
#include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/coresight.h>
#include <linux/amba/bus.h>
@@ -25,6 +27,7 @@
#define FUNNEL_HOLDTIME_MASK 0xf00
#define FUNNEL_HOLDTIME_SHFT 0x8
#define FUNNEL_HOLDTIME (0x7 << FUNNEL_HOLDTIME_SHFT)
+#define FUNNEL_ENSx_MASK 0xff
/**
* struct funnel_drvdata - specifics associated to a funnel component
@@ -33,6 +36,7 @@
* @atclk: optional clock for the core parts of the funnel.
* @csdev: component vitals needed by the framework.
* @priority: port selection order.
+ * @spinlock: serialize enable/disable operations.
*/
struct funnel_drvdata {
void __iomem *base;
@@ -40,36 +44,60 @@ struct funnel_drvdata {
struct clk *atclk;
struct coresight_device *csdev;
unsigned long priority;
+ spinlock_t spinlock;
};
-static void funnel_enable_hw(struct funnel_drvdata *drvdata, int port)
+static int dynamic_funnel_enable_hw(struct funnel_drvdata *drvdata, int port)
{
u32 functl;
+ int rc = 0;
CS_UNLOCK(drvdata->base);
functl = readl_relaxed(drvdata->base + FUNNEL_FUNCTL);
+ /* Claim the device only when we enable the first slave */
+ if (!(functl & FUNNEL_ENSx_MASK)) {
+ rc = coresight_claim_device_unlocked(drvdata->base);
+ if (rc)
+ goto done;
+ }
+
functl &= ~FUNNEL_HOLDTIME_MASK;
functl |= FUNNEL_HOLDTIME;
functl |= (1 << port);
writel_relaxed(functl, drvdata->base + FUNNEL_FUNCTL);
writel_relaxed(drvdata->priority, drvdata->base + FUNNEL_PRICTL);
-
+done:
CS_LOCK(drvdata->base);
+ return rc;
}
static int funnel_enable(struct coresight_device *csdev, int inport,
int outport)
{
+ int rc = 0;
struct funnel_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
+ unsigned long flags;
+ bool first_enable = false;
- funnel_enable_hw(drvdata, inport);
+ spin_lock_irqsave(&drvdata->spinlock, flags);
+ if (atomic_read(&csdev->refcnt[inport]) == 0) {
+ if (drvdata->base)
+ rc = dynamic_funnel_enable_hw(drvdata, inport);
+ if (!rc)
+ first_enable = true;
+ }
+ if (!rc)
+ atomic_inc(&csdev->refcnt[inport]);
+ spin_unlock_irqrestore(&drvdata->spinlock, flags);
- dev_info(drvdata->dev, "FUNNEL inport %d enabled\n", inport);
- return 0;
+ if (first_enable)
+ dev_dbg(drvdata->dev, "FUNNEL inport %d enabled\n", inport);
+ return rc;
}
-static void funnel_disable_hw(struct funnel_drvdata *drvdata, int inport)
+static void dynamic_funnel_disable_hw(struct funnel_drvdata *drvdata,
+ int inport)
{
u32 functl;
@@ -79,6 +107,10 @@ static void funnel_disable_hw(struct funnel_drvdata *drvdata, int inport)
functl &= ~(1 << inport);
writel_relaxed(functl, drvdata->base + FUNNEL_FUNCTL);
+ /* Disclaim the device if none of the slaves are now active */
+ if (!(functl & FUNNEL_ENSx_MASK))
+ coresight_disclaim_device_unlocked(drvdata->base);
+
CS_LOCK(drvdata->base);
}
@@ -86,10 +118,19 @@ static void funnel_disable(struct coresight_device *csdev, int inport,
int outport)
{
struct funnel_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
+ unsigned long flags;
+ bool last_disable = false;
- funnel_disable_hw(drvdata, inport);
+ spin_lock_irqsave(&drvdata->spinlock, flags);
+ if (atomic_dec_return(&csdev->refcnt[inport]) == 0) {
+ if (drvdata->base)
+ dynamic_funnel_disable_hw(drvdata, inport);
+ last_disable = true;
+ }
+ spin_unlock_irqrestore(&drvdata->spinlock, flags);
- dev_info(drvdata->dev, "FUNNEL inport %d disabled\n", inport);
+ if (last_disable)
+ dev_dbg(drvdata->dev, "FUNNEL inport %d disabled\n", inport);
}
static const struct coresight_ops_link funnel_link_ops = {
@@ -161,54 +202,72 @@ static struct attribute *coresight_funnel_attrs[] = {
};
ATTRIBUTE_GROUPS(coresight_funnel);
-static int funnel_probe(struct amba_device *adev, const struct amba_id *id)
+static int funnel_probe(struct device *dev, struct resource *res)
{
int ret;
void __iomem *base;
- struct device *dev = &adev->dev;
struct coresight_platform_data *pdata = NULL;
struct funnel_drvdata *drvdata;
- struct resource *res = &adev->res;
struct coresight_desc desc = { 0 };
- struct device_node *np = adev->dev.of_node;
+ struct device_node *np = dev->of_node;
if (np) {
pdata = of_get_coresight_platform_data(dev, np);
if (IS_ERR(pdata))
return PTR_ERR(pdata);
- adev->dev.platform_data = pdata;
+ dev->platform_data = pdata;
}
+ if (of_device_is_compatible(np, "arm,coresight-funnel"))
+ pr_warn_once("Uses OBSOLETE CoreSight funnel binding\n");
+
drvdata = devm_kzalloc(dev, sizeof(*drvdata), GFP_KERNEL);
if (!drvdata)
return -ENOMEM;
- drvdata->dev = &adev->dev;
- drvdata->atclk = devm_clk_get(&adev->dev, "atclk"); /* optional */
+ drvdata->dev = dev;
+ drvdata->atclk = devm_clk_get(dev, "atclk"); /* optional */
if (!IS_ERR(drvdata->atclk)) {
ret = clk_prepare_enable(drvdata->atclk);
if (ret)
return ret;
}
+
+ /*
+ * Map the device base for dynamic-funnel, which has been
+ * validated by AMBA core.
+ */
+ if (res) {
+ base = devm_ioremap_resource(dev, res);
+ if (IS_ERR(base)) {
+ ret = PTR_ERR(base);
+ goto out_disable_clk;
+ }
+ drvdata->base = base;
+ desc.groups = coresight_funnel_groups;
+ }
+
dev_set_drvdata(dev, drvdata);
- /* Validity for the resource is already checked by the AMBA core */
- base = devm_ioremap_resource(dev, res);
- if (IS_ERR(base))
- return PTR_ERR(base);
-
- drvdata->base = base;
- pm_runtime_put(&adev->dev);
-
+ spin_lock_init(&drvdata->spinlock);
desc.type = CORESIGHT_DEV_TYPE_LINK;
desc.subtype.link_subtype = CORESIGHT_DEV_SUBTYPE_LINK_MERG;
desc.ops = &funnel_cs_ops;
desc.pdata = pdata;
desc.dev = dev;
- desc.groups = coresight_funnel_groups;
drvdata->csdev = coresight_register(&desc);
+ if (IS_ERR(drvdata->csdev)) {
+ ret = PTR_ERR(drvdata->csdev);
+ goto out_disable_clk;
+ }
- return PTR_ERR_OR_ZERO(drvdata->csdev);
+ pm_runtime_put(dev);
+ ret = 0;
+
+out_disable_clk:
+ if (ret && !IS_ERR_OR_NULL(drvdata->atclk))
+ clk_disable_unprepare(drvdata->atclk);
+ return ret;
}
#ifdef CONFIG_PM
@@ -237,7 +296,48 @@ static const struct dev_pm_ops funnel_dev_pm_ops = {
SET_RUNTIME_PM_OPS(funnel_runtime_suspend, funnel_runtime_resume, NULL)
};
-static const struct amba_id funnel_ids[] = {
+static int static_funnel_probe(struct platform_device *pdev)
+{
+ int ret;
+
+ pm_runtime_get_noresume(&pdev->dev);
+ pm_runtime_set_active(&pdev->dev);
+ pm_runtime_enable(&pdev->dev);
+
+ /* Static funnel do not have programming base */
+ ret = funnel_probe(&pdev->dev, NULL);
+
+ if (ret) {
+ pm_runtime_put_noidle(&pdev->dev);
+ pm_runtime_disable(&pdev->dev);
+ }
+
+ return ret;
+}
+
+static const struct of_device_id static_funnel_match[] = {
+ {.compatible = "arm,coresight-static-funnel"},
+ {}
+};
+
+static struct platform_driver static_funnel_driver = {
+ .probe = static_funnel_probe,
+ .driver = {
+ .name = "coresight-static-funnel",
+ .of_match_table = static_funnel_match,
+ .pm = &funnel_dev_pm_ops,
+ .suppress_bind_attrs = true,
+ },
+};
+builtin_platform_driver(static_funnel_driver);
+
+static int dynamic_funnel_probe(struct amba_device *adev,
+ const struct amba_id *id)
+{
+ return funnel_probe(&adev->dev, &adev->res);
+}
+
+static const struct amba_id dynamic_funnel_ids[] = {
{
.id = 0x000bb908,
.mask = 0x000fffff,
@@ -250,14 +350,14 @@ static const struct amba_id funnel_ids[] = {
{ 0, 0},
};
-static struct amba_driver funnel_driver = {
+static struct amba_driver dynamic_funnel_driver = {
.drv = {
- .name = "coresight-funnel",
+ .name = "coresight-dynamic-funnel",
.owner = THIS_MODULE,
.pm = &funnel_dev_pm_ops,
.suppress_bind_attrs = true,
},
- .probe = funnel_probe,
- .id_table = funnel_ids,
+ .probe = dynamic_funnel_probe,
+ .id_table = dynamic_funnel_ids,
};
-builtin_amba_driver(funnel_driver);
+builtin_amba_driver(dynamic_funnel_driver);
diff --git a/drivers/hwtracing/coresight/coresight-priv.h b/drivers/hwtracing/coresight/coresight-priv.h
index 1a6cf35..b936c6d 100644
--- a/drivers/hwtracing/coresight/coresight-priv.h
+++ b/drivers/hwtracing/coresight/coresight-priv.h
@@ -25,6 +25,13 @@
#define CORESIGHT_DEVID 0xfc8
#define CORESIGHT_DEVTYPE 0xfcc
+
+/*
+ * Coresight device CLAIM protocol.
+ * See PSCI - ARM DEN 0022D, Section: 6.8.1 Debug and Trace save and restore.
+ */
+#define CORESIGHT_CLAIM_SELF_HOSTED BIT(1)
+
#define TIMEOUT_US 100
#define BMVAL(val, lsb, msb) ((val & GENMASK(msb, lsb)) >> lsb)
@@ -137,9 +144,10 @@ static inline void coresight_write_reg_pair(void __iomem *addr, u64 val,
}
void coresight_disable_path(struct list_head *path);
-int coresight_enable_path(struct list_head *path, u32 mode);
+int coresight_enable_path(struct list_head *path, u32 mode, void *sink_data);
struct coresight_device *coresight_get_sink(struct list_head *path);
struct coresight_device *coresight_get_enabled_sink(bool reset);
+struct coresight_device *coresight_get_sink_by_id(u32 id);
struct list_head *coresight_build_path(struct coresight_device *csdev,
struct coresight_device *sink);
void coresight_release_path(struct list_head *path);
diff --git a/drivers/hwtracing/coresight/coresight-replicator.c b/drivers/hwtracing/coresight/coresight-replicator.c
index 8d2eaaa..344e73e 100644
--- a/drivers/hwtracing/coresight/coresight-replicator.c
+++ b/drivers/hwtracing/coresight/coresight-replicator.c
@@ -35,7 +35,8 @@ static int replicator_enable(struct coresight_device *csdev, int inport,
{
struct replicator_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
- dev_info(drvdata->dev, "REPLICATOR enabled\n");
+ if (atomic_inc_return(&csdev->refcnt[outport]) == 1)
+ dev_dbg(drvdata->dev, "REPLICATOR enabled\n");
return 0;
}
@@ -44,7 +45,8 @@ static void replicator_disable(struct coresight_device *csdev, int inport,
{
struct replicator_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
- dev_info(drvdata->dev, "REPLICATOR disabled\n");
+ if (atomic_dec_return(&csdev->refcnt[outport]) == 0)
+ dev_dbg(drvdata->dev, "REPLICATOR disabled\n");
}
static const struct coresight_ops_link replicator_link_ops = {
diff --git a/drivers/hwtracing/coresight/coresight-stm.c b/drivers/hwtracing/coresight/coresight-stm.c
index c46c70a..35d6f97 100644
--- a/drivers/hwtracing/coresight/coresight-stm.c
+++ b/drivers/hwtracing/coresight/coresight-stm.c
@@ -211,7 +211,7 @@ static int stm_enable(struct coresight_device *csdev,
stm_enable_hw(drvdata);
spin_unlock(&drvdata->spinlock);
- dev_info(drvdata->dev, "STM tracing enabled\n");
+ dev_dbg(drvdata->dev, "STM tracing enabled\n");
return 0;
}
@@ -274,7 +274,7 @@ static void stm_disable(struct coresight_device *csdev,
pm_runtime_put(drvdata->dev);
local_set(&drvdata->mode, CS_MODE_DISABLED);
- dev_info(drvdata->dev, "STM tracing disabled\n");
+ dev_dbg(drvdata->dev, "STM tracing disabled\n");
}
}
diff --git a/drivers/hwtracing/coresight/coresight-tmc-etf.c b/drivers/hwtracing/coresight/coresight-tmc-etf.c
index 7f87e2c..f0b31c5 100644
--- a/drivers/hwtracing/coresight/coresight-tmc-etf.c
+++ b/drivers/hwtracing/coresight/coresight-tmc-etf.c
@@ -4,14 +4,19 @@
* Author: Mathieu Poirier <mathieu.poirier@linaro.org>
*/
+#include <linux/atomic.h>
#include <linux/circ_buf.h>
#include <linux/coresight.h>
#include <linux/perf_event.h>
#include <linux/slab.h>
#include "coresight-priv.h"
#include "coresight-tmc.h"
+#include "coresight-etm-perf.h"
-static void tmc_etb_enable_hw(struct tmc_drvdata *drvdata)
+static int tmc_set_etf_buffer(struct coresight_device *csdev,
+ struct perf_output_handle *handle);
+
+static void __tmc_etb_enable_hw(struct tmc_drvdata *drvdata)
{
CS_UNLOCK(drvdata->base);
@@ -30,6 +35,17 @@ static void tmc_etb_enable_hw(struct tmc_drvdata *drvdata)
CS_LOCK(drvdata->base);
}
+static int tmc_etb_enable_hw(struct tmc_drvdata *drvdata)
+{
+ int rc = coresight_claim_device(drvdata->base);
+
+ if (rc)
+ return rc;
+
+ __tmc_etb_enable_hw(drvdata);
+ return 0;
+}
+
static void tmc_etb_dump_hw(struct tmc_drvdata *drvdata)
{
char *bufp;
@@ -56,7 +72,7 @@ static void tmc_etb_dump_hw(struct tmc_drvdata *drvdata)
return;
}
-static void tmc_etb_disable_hw(struct tmc_drvdata *drvdata)
+static void __tmc_etb_disable_hw(struct tmc_drvdata *drvdata)
{
CS_UNLOCK(drvdata->base);
@@ -72,7 +88,13 @@ static void tmc_etb_disable_hw(struct tmc_drvdata *drvdata)
CS_LOCK(drvdata->base);
}
-static void tmc_etf_enable_hw(struct tmc_drvdata *drvdata)
+static void tmc_etb_disable_hw(struct tmc_drvdata *drvdata)
+{
+ coresight_disclaim_device(drvdata->base);
+ __tmc_etb_disable_hw(drvdata);
+}
+
+static void __tmc_etf_enable_hw(struct tmc_drvdata *drvdata)
{
CS_UNLOCK(drvdata->base);
@@ -88,13 +110,24 @@ static void tmc_etf_enable_hw(struct tmc_drvdata *drvdata)
CS_LOCK(drvdata->base);
}
+static int tmc_etf_enable_hw(struct tmc_drvdata *drvdata)
+{
+ int rc = coresight_claim_device(drvdata->base);
+
+ if (rc)
+ return rc;
+
+ __tmc_etf_enable_hw(drvdata);
+ return 0;
+}
+
static void tmc_etf_disable_hw(struct tmc_drvdata *drvdata)
{
CS_UNLOCK(drvdata->base);
tmc_flush_and_stop(drvdata);
tmc_disable_hw(drvdata);
-
+ coresight_disclaim_device_unlocked(drvdata->base);
CS_LOCK(drvdata->base);
}
@@ -151,8 +184,10 @@ static int tmc_enable_etf_sink_sysfs(struct coresight_device *csdev)
* sink is already enabled no memory is needed and the HW need not be
* touched.
*/
- if (drvdata->mode == CS_MODE_SYSFS)
+ if (drvdata->mode == CS_MODE_SYSFS) {
+ atomic_inc(csdev->refcnt);
goto out;
+ }
/*
* If drvdata::buf isn't NULL, memory was allocated for a previous
@@ -170,8 +205,14 @@ static int tmc_enable_etf_sink_sysfs(struct coresight_device *csdev)
drvdata->buf = buf;
}
- drvdata->mode = CS_MODE_SYSFS;
- tmc_etb_enable_hw(drvdata);
+ ret = tmc_etb_enable_hw(drvdata);
+ if (!ret) {
+ drvdata->mode = CS_MODE_SYSFS;
+ atomic_inc(csdev->refcnt);
+ } else {
+ /* Free up the buffer if we failed to enable */
+ used = false;
+ }
out:
spin_unlock_irqrestore(&drvdata->spinlock, flags);
@@ -182,37 +223,42 @@ static int tmc_enable_etf_sink_sysfs(struct coresight_device *csdev)
return ret;
}
-static int tmc_enable_etf_sink_perf(struct coresight_device *csdev)
+static int tmc_enable_etf_sink_perf(struct coresight_device *csdev, void *data)
{
int ret = 0;
unsigned long flags;
struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
+ struct perf_output_handle *handle = data;
spin_lock_irqsave(&drvdata->spinlock, flags);
- if (drvdata->reading) {
+ do {
ret = -EINVAL;
- goto out;
- }
+ if (drvdata->reading)
+ break;
+ /*
+ * In Perf mode there can be only one writer per sink. There
+ * is also no need to continue if the ETB/ETF is already
+ * operated from sysFS.
+ */
+ if (drvdata->mode != CS_MODE_DISABLED)
+ break;
- /*
- * In Perf mode there can be only one writer per sink. There
- * is also no need to continue if the ETB/ETR is already operated
- * from sysFS.
- */
- if (drvdata->mode != CS_MODE_DISABLED) {
- ret = -EINVAL;
- goto out;
- }
-
- drvdata->mode = CS_MODE_PERF;
- tmc_etb_enable_hw(drvdata);
-out:
+ ret = tmc_set_etf_buffer(csdev, handle);
+ if (ret)
+ break;
+ ret = tmc_etb_enable_hw(drvdata);
+ if (!ret) {
+ drvdata->mode = CS_MODE_PERF;
+ atomic_inc(csdev->refcnt);
+ }
+ } while (0);
spin_unlock_irqrestore(&drvdata->spinlock, flags);
return ret;
}
-static int tmc_enable_etf_sink(struct coresight_device *csdev, u32 mode)
+static int tmc_enable_etf_sink(struct coresight_device *csdev,
+ u32 mode, void *data)
{
int ret;
struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
@@ -222,7 +268,7 @@ static int tmc_enable_etf_sink(struct coresight_device *csdev, u32 mode)
ret = tmc_enable_etf_sink_sysfs(csdev);
break;
case CS_MODE_PERF:
- ret = tmc_enable_etf_sink_perf(csdev);
+ ret = tmc_enable_etf_sink_perf(csdev, data);
break;
/* We shouldn't be here */
default:
@@ -233,37 +279,45 @@ static int tmc_enable_etf_sink(struct coresight_device *csdev, u32 mode)
if (ret)
return ret;
- dev_info(drvdata->dev, "TMC-ETB/ETF enabled\n");
+ dev_dbg(drvdata->dev, "TMC-ETB/ETF enabled\n");
return 0;
}
-static void tmc_disable_etf_sink(struct coresight_device *csdev)
+static int tmc_disable_etf_sink(struct coresight_device *csdev)
{
unsigned long flags;
struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
spin_lock_irqsave(&drvdata->spinlock, flags);
+
if (drvdata->reading) {
spin_unlock_irqrestore(&drvdata->spinlock, flags);
- return;
+ return -EBUSY;
}
- /* Disable the TMC only if it needs to */
- if (drvdata->mode != CS_MODE_DISABLED) {
- tmc_etb_disable_hw(drvdata);
- drvdata->mode = CS_MODE_DISABLED;
+ if (atomic_dec_return(csdev->refcnt)) {
+ spin_unlock_irqrestore(&drvdata->spinlock, flags);
+ return -EBUSY;
}
+ /* Complain if we (somehow) got out of sync */
+ WARN_ON_ONCE(drvdata->mode == CS_MODE_DISABLED);
+ tmc_etb_disable_hw(drvdata);
+ drvdata->mode = CS_MODE_DISABLED;
+
spin_unlock_irqrestore(&drvdata->spinlock, flags);
- dev_info(drvdata->dev, "TMC-ETB/ETF disabled\n");
+ dev_dbg(drvdata->dev, "TMC-ETB/ETF disabled\n");
+ return 0;
}
static int tmc_enable_etf_link(struct coresight_device *csdev,
int inport, int outport)
{
+ int ret = 0;
unsigned long flags;
struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
+ bool first_enable = false;
spin_lock_irqsave(&drvdata->spinlock, flags);
if (drvdata->reading) {
@@ -271,12 +325,20 @@ static int tmc_enable_etf_link(struct coresight_device *csdev,
return -EBUSY;
}
- tmc_etf_enable_hw(drvdata);
- drvdata->mode = CS_MODE_SYSFS;
+ if (atomic_read(&csdev->refcnt[0]) == 0) {
+ ret = tmc_etf_enable_hw(drvdata);
+ if (!ret) {
+ drvdata->mode = CS_MODE_SYSFS;
+ first_enable = true;
+ }
+ }
+ if (!ret)
+ atomic_inc(&csdev->refcnt[0]);
spin_unlock_irqrestore(&drvdata->spinlock, flags);
- dev_info(drvdata->dev, "TMC-ETF enabled\n");
- return 0;
+ if (first_enable)
+ dev_dbg(drvdata->dev, "TMC-ETF enabled\n");
+ return ret;
}
static void tmc_disable_etf_link(struct coresight_device *csdev,
@@ -284,6 +346,7 @@ static void tmc_disable_etf_link(struct coresight_device *csdev,
{
unsigned long flags;
struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
+ bool last_disable = false;
spin_lock_irqsave(&drvdata->spinlock, flags);
if (drvdata->reading) {
@@ -291,17 +354,22 @@ static void tmc_disable_etf_link(struct coresight_device *csdev,
return;
}
- tmc_etf_disable_hw(drvdata);
- drvdata->mode = CS_MODE_DISABLED;
+ if (atomic_dec_return(&csdev->refcnt[0]) == 0) {
+ tmc_etf_disable_hw(drvdata);
+ drvdata->mode = CS_MODE_DISABLED;
+ last_disable = true;
+ }
spin_unlock_irqrestore(&drvdata->spinlock, flags);
- dev_info(drvdata->dev, "TMC-ETF disabled\n");
+ if (last_disable)
+ dev_dbg(drvdata->dev, "TMC-ETF disabled\n");
}
-static void *tmc_alloc_etf_buffer(struct coresight_device *csdev, int cpu,
- void **pages, int nr_pages, bool overwrite)
+static void *tmc_alloc_etf_buffer(struct coresight_device *csdev,
+ struct perf_event *event, void **pages,
+ int nr_pages, bool overwrite)
{
- int node;
+ int node, cpu = event->cpu;
struct cs_buffers *buf;
node = (cpu == -1) ? NUMA_NO_NODE : cpu_to_node(cpu);
@@ -326,12 +394,14 @@ static void tmc_free_etf_buffer(void *config)
}
static int tmc_set_etf_buffer(struct coresight_device *csdev,
- struct perf_output_handle *handle,
- void *sink_config)
+ struct perf_output_handle *handle)
{
int ret = 0;
unsigned long head;
- struct cs_buffers *buf = sink_config;
+ struct cs_buffers *buf = etm_perf_sink_config(handle);
+
+ if (!buf)
+ return -EINVAL;
/* wrap head around to the amount of space we have */
head = handle->head & ((buf->nr_pages << PAGE_SHIFT) - 1);
@@ -347,36 +417,7 @@ static int tmc_set_etf_buffer(struct coresight_device *csdev,
return ret;
}
-static unsigned long tmc_reset_etf_buffer(struct coresight_device *csdev,
- struct perf_output_handle *handle,
- void *sink_config)
-{
- long size = 0;
- struct cs_buffers *buf = sink_config;
-
- if (buf) {
- /*
- * In snapshot mode ->data_size holds the new address of the
- * ring buffer's head. The size itself is the whole address
- * range since we want the latest information.
- */
- if (buf->snapshot)
- handle->head = local_xchg(&buf->data_size,
- buf->nr_pages << PAGE_SHIFT);
- /*
- * Tell the tracer PMU how much we got in this run and if
- * something went wrong along the way. Nobody else can use
- * this cs_buffers instance until we are done. As such
- * resetting parameters here and squaring off with the ring
- * buffer API in the tracer PMU is fine.
- */
- size = local_xchg(&buf->data_size, 0);
- }
-
- return size;
-}
-
-static void tmc_update_etf_buffer(struct coresight_device *csdev,
+static unsigned long tmc_update_etf_buffer(struct coresight_device *csdev,
struct perf_output_handle *handle,
void *sink_config)
{
@@ -385,18 +426,19 @@ static void tmc_update_etf_buffer(struct coresight_device *csdev,
const u32 *barrier;
u32 *buf_ptr;
u64 read_ptr, write_ptr;
- u32 status, to_read;
- unsigned long offset;
+ u32 status;
+ unsigned long offset, to_read, flags;
struct cs_buffers *buf = sink_config;
struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
if (!buf)
- return;
+ return 0;
/* This shouldn't happen */
if (WARN_ON_ONCE(drvdata->mode != CS_MODE_PERF))
- return;
+ return 0;
+ spin_lock_irqsave(&drvdata->spinlock, flags);
CS_UNLOCK(drvdata->base);
tmc_flush_and_stop(drvdata);
@@ -419,33 +461,16 @@ static void tmc_update_etf_buffer(struct coresight_device *csdev,
/*
* The TMC RAM buffer may be bigger than the space available in the
* perf ring buffer (handle->size). If so advance the RRP so that we
- * get the latest trace data.
+ * get the latest trace data. In snapshot mode none of that matters
+ * since we are expected to clobber stale data in favour of the latest
+ * traces.
*/
- if (to_read > handle->size) {
- u32 mask = 0;
-
- /*
- * The value written to RRP must be byte-address aligned to
- * the width of the trace memory databus _and_ to a frame
- * boundary (16 byte), whichever is the biggest. For example,
- * for 32-bit, 64-bit and 128-bit wide trace memory, the four
- * LSBs must be 0s. For 256-bit wide trace memory, the five
- * LSBs must be 0s.
- */
- switch (drvdata->memwidth) {
- case TMC_MEM_INTF_WIDTH_32BITS:
- case TMC_MEM_INTF_WIDTH_64BITS:
- case TMC_MEM_INTF_WIDTH_128BITS:
- mask = GENMASK(31, 4);
- break;
- case TMC_MEM_INTF_WIDTH_256BITS:
- mask = GENMASK(31, 5);
- break;
- }
+ if (!buf->snapshot && to_read > handle->size) {
+ u32 mask = tmc_get_memwidth_mask(drvdata);
/*
* Make sure the new size is aligned in accordance with the
- * requirement explained above.
+ * requirement explained in function tmc_get_memwidth_mask().
*/
to_read = handle->size & mask;
/* Move the RAM read pointer up */
@@ -458,7 +483,13 @@ static void tmc_update_etf_buffer(struct coresight_device *csdev,
lost = true;
}
- if (lost)
+ /*
+ * Don't set the TRUNCATED flag in snapshot mode because 1) the
+ * captured buffer is expected to be truncated and 2) a full buffer
+ * prevents the event from being re-enabled by the perf core,
+ * resulting in stale data being send to user space.
+ */
+ if (!buf->snapshot && lost)
perf_aux_output_flag(handle, PERF_AUX_FLAG_TRUNCATED);
cur = buf->cur;
@@ -484,18 +515,15 @@ static void tmc_update_etf_buffer(struct coresight_device *csdev,
}
}
- /*
- * In snapshot mode all we have to do is communicate to
- * perf_aux_output_end() the address of the current head. In full
- * trace mode the same function expects a size to move rb->aux_head
- * forward.
- */
- if (buf->snapshot)
- local_set(&buf->data_size, (cur * PAGE_SIZE) + offset);
- else
- local_add(to_read, &buf->data_size);
-
+ /* In snapshot mode we have to update the head */
+ if (buf->snapshot) {
+ handle->head = (cur * PAGE_SIZE) + offset;
+ to_read = buf->nr_pages << PAGE_SHIFT;
+ }
CS_LOCK(drvdata->base);
+ spin_unlock_irqrestore(&drvdata->spinlock, flags);
+
+ return to_read;
}
static const struct coresight_ops_sink tmc_etf_sink_ops = {
@@ -503,8 +531,6 @@ static const struct coresight_ops_sink tmc_etf_sink_ops = {
.disable = tmc_disable_etf_sink,
.alloc_buffer = tmc_alloc_etf_buffer,
.free_buffer = tmc_free_etf_buffer,
- .set_buffer = tmc_set_etf_buffer,
- .reset_buffer = tmc_reset_etf_buffer,
.update_buffer = tmc_update_etf_buffer,
};
@@ -561,7 +587,7 @@ int tmc_read_prepare_etb(struct tmc_drvdata *drvdata)
/* Disable the TMC if need be */
if (drvdata->mode == CS_MODE_SYSFS)
- tmc_etb_disable_hw(drvdata);
+ __tmc_etb_disable_hw(drvdata);
drvdata->reading = true;
out:
@@ -600,7 +626,7 @@ int tmc_read_unprepare_etb(struct tmc_drvdata *drvdata)
* can't be NULL.
*/
memset(drvdata->buf, 0, drvdata->size);
- tmc_etb_enable_hw(drvdata);
+ __tmc_etb_enable_hw(drvdata);
} else {
/*
* The ETB/ETF is not tracing and the buffer was just read.
diff --git a/drivers/hwtracing/coresight/coresight-tmc-etr.c b/drivers/hwtracing/coresight/coresight-tmc-etr.c
index 9a3cb07..b4b95ab 100644
--- a/drivers/hwtracing/coresight/coresight-tmc-etr.c
+++ b/drivers/hwtracing/coresight/coresight-tmc-etr.c
@@ -4,12 +4,18 @@
* Author: Mathieu Poirier <mathieu.poirier@linaro.org>
*/
+#include <linux/atomic.h>
#include <linux/coresight.h>
#include <linux/dma-mapping.h>
#include <linux/iommu.h>
+#include <linux/idr.h>
+#include <linux/mutex.h>
+#include <linux/refcount.h>
#include <linux/slab.h>
+#include <linux/types.h>
#include <linux/vmalloc.h>
#include "coresight-catu.h"
+#include "coresight-etm-perf.h"
#include "coresight-priv.h"
#include "coresight-tmc.h"
@@ -21,6 +27,32 @@ struct etr_flat_buf {
};
/*
+ * etr_perf_buffer - Perf buffer used for ETR
+ * @drvdata - The ETR drvdaga this buffer has been allocated for.
+ * @etr_buf - Actual buffer used by the ETR
+ * @pid - The PID this etr_perf_buffer belongs to.
+ * @snaphost - Perf session mode
+ * @head - handle->head at the beginning of the session.
+ * @nr_pages - Number of pages in the ring buffer.
+ * @pages - Array of Pages in the ring buffer.
+ */
+struct etr_perf_buffer {
+ struct tmc_drvdata *drvdata;
+ struct etr_buf *etr_buf;
+ pid_t pid;
+ bool snapshot;
+ unsigned long head;
+ int nr_pages;
+ void **pages;
+};
+
+/* Convert the perf index to an offset within the ETR buffer */
+#define PERF_IDX2OFF(idx, buf) ((idx) % ((buf)->nr_pages << PAGE_SHIFT))
+
+/* Lower limit for ETR hardware buffer */
+#define TMC_ETR_PERF_MIN_BUF_SIZE SZ_1M
+
+/*
* The TMC ETR SG has a page size of 4K. The SG table contains pointers
* to 4KB buffers. However, the OS may use a PAGE_SIZE different from
* 4K (i.e, 16KB or 64KB). This implies that a single OS page could
@@ -730,12 +762,14 @@ tmc_etr_get_catu_device(struct tmc_drvdata *drvdata)
return NULL;
}
-static inline void tmc_etr_enable_catu(struct tmc_drvdata *drvdata)
+static inline int tmc_etr_enable_catu(struct tmc_drvdata *drvdata,
+ struct etr_buf *etr_buf)
{
struct coresight_device *catu = tmc_etr_get_catu_device(drvdata);
if (catu && helper_ops(catu)->enable)
- helper_ops(catu)->enable(catu, drvdata->etr_buf);
+ return helper_ops(catu)->enable(catu, etr_buf);
+ return 0;
}
static inline void tmc_etr_disable_catu(struct tmc_drvdata *drvdata)
@@ -831,6 +865,7 @@ static struct etr_buf *tmc_alloc_etr_buf(struct tmc_drvdata *drvdata,
return ERR_PTR(rc);
}
+ refcount_set(&etr_buf->refcount, 1);
dev_dbg(drvdata->dev, "allocated buffer of size %ldKB in mode %d\n",
(unsigned long)size >> 10, etr_buf->mode);
return etr_buf;
@@ -887,32 +922,30 @@ static void tmc_sync_etr_buf(struct tmc_drvdata *drvdata)
rrp = tmc_read_rrp(drvdata);
rwp = tmc_read_rwp(drvdata);
status = readl_relaxed(drvdata->base + TMC_STS);
+
+ /*
+ * If there were memory errors in the session, truncate the
+ * buffer.
+ */
+ if (WARN_ON_ONCE(status & TMC_STS_MEMERR)) {
+ dev_dbg(&drvdata->csdev->dev,
+ "tmc memory error detected, truncating buffer\n");
+ etr_buf->len = 0;
+ etr_buf->full = 0;
+ return;
+ }
+
etr_buf->full = status & TMC_STS_FULL;
WARN_ON(!etr_buf->ops || !etr_buf->ops->sync);
etr_buf->ops->sync(etr_buf, rrp, rwp);
-
- /* Insert barrier packets at the beginning, if there was an overflow */
- if (etr_buf->full)
- tmc_etr_buf_insert_barrier_packet(etr_buf, etr_buf->offset);
}
-static void tmc_etr_enable_hw(struct tmc_drvdata *drvdata,
- struct etr_buf *etr_buf)
+static void __tmc_etr_enable_hw(struct tmc_drvdata *drvdata)
{
u32 axictl, sts;
-
- /* Callers should provide an appropriate buffer for use */
- if (WARN_ON(!etr_buf || drvdata->etr_buf))
- return;
- drvdata->etr_buf = etr_buf;
-
- /*
- * If this ETR is connected to a CATU, enable it before we turn
- * this on
- */
- tmc_etr_enable_catu(drvdata);
+ struct etr_buf *etr_buf = drvdata->etr_buf;
CS_UNLOCK(drvdata->base);
@@ -932,11 +965,8 @@ static void tmc_etr_enable_hw(struct tmc_drvdata *drvdata,
axictl |= TMC_AXICTL_ARCACHE_OS;
}
- if (etr_buf->mode == ETR_MODE_ETR_SG) {
- if (WARN_ON(!tmc_etr_has_cap(drvdata, TMC_ETR_SG)))
- return;
+ if (etr_buf->mode == ETR_MODE_ETR_SG)
axictl |= TMC_AXICTL_SCT_GAT_MODE;
- }
writel_relaxed(axictl, drvdata->base + TMC_AXICTL);
tmc_write_dba(drvdata, etr_buf->hwaddr);
@@ -962,6 +992,38 @@ static void tmc_etr_enable_hw(struct tmc_drvdata *drvdata,
CS_LOCK(drvdata->base);
}
+static int tmc_etr_enable_hw(struct tmc_drvdata *drvdata,
+ struct etr_buf *etr_buf)
+{
+ int rc;
+
+ /* Callers should provide an appropriate buffer for use */
+ if (WARN_ON(!etr_buf))
+ return -EINVAL;
+
+ if ((etr_buf->mode == ETR_MODE_ETR_SG) &&
+ WARN_ON(!tmc_etr_has_cap(drvdata, TMC_ETR_SG)))
+ return -EINVAL;
+
+ if (WARN_ON(drvdata->etr_buf))
+ return -EBUSY;
+
+ /*
+ * If this ETR is connected to a CATU, enable it before we turn
+ * this on.
+ */
+ rc = tmc_etr_enable_catu(drvdata, etr_buf);
+ if (rc)
+ return rc;
+ rc = coresight_claim_device(drvdata->base);
+ if (!rc) {
+ drvdata->etr_buf = etr_buf;
+ __tmc_etr_enable_hw(drvdata);
+ }
+
+ return rc;
+}
+
/*
* Return the available trace data in the buffer (starts at etr_buf->offset,
* limited by etr_buf->len) from @pos, with a maximum limit of @len,
@@ -1014,10 +1076,17 @@ static void tmc_etr_sync_sysfs_buf(struct tmc_drvdata *drvdata)
drvdata->sysfs_buf = NULL;
} else {
tmc_sync_etr_buf(drvdata);
+ /*
+ * Insert barrier packets at the beginning, if there was
+ * an overflow.
+ */
+ if (etr_buf->full)
+ tmc_etr_buf_insert_barrier_packet(etr_buf,
+ etr_buf->offset);
}
}
-static void tmc_etr_disable_hw(struct tmc_drvdata *drvdata)
+static void __tmc_etr_disable_hw(struct tmc_drvdata *drvdata)
{
CS_UNLOCK(drvdata->base);
@@ -1033,8 +1102,14 @@ static void tmc_etr_disable_hw(struct tmc_drvdata *drvdata)
CS_LOCK(drvdata->base);
+}
+
+static void tmc_etr_disable_hw(struct tmc_drvdata *drvdata)
+{
+ __tmc_etr_disable_hw(drvdata);
/* Disable CATU device if this ETR is connected to one */
tmc_etr_disable_catu(drvdata);
+ coresight_disclaim_device(drvdata->base);
/* Reset the ETR buf used by hardware */
drvdata->etr_buf = NULL;
}
@@ -1078,8 +1153,10 @@ static int tmc_enable_etr_sink_sysfs(struct coresight_device *csdev)
* sink is already enabled no memory is needed and the HW need not be
* touched, even if the buffer size has changed.
*/
- if (drvdata->mode == CS_MODE_SYSFS)
+ if (drvdata->mode == CS_MODE_SYSFS) {
+ atomic_inc(csdev->refcnt);
goto out;
+ }
/*
* If we don't have a buffer or it doesn't match the requested size,
@@ -1091,8 +1168,11 @@ static int tmc_enable_etr_sink_sysfs(struct coresight_device *csdev)
drvdata->sysfs_buf = new_buf;
}
- drvdata->mode = CS_MODE_SYSFS;
- tmc_etr_enable_hw(drvdata, drvdata->sysfs_buf);
+ ret = tmc_etr_enable_hw(drvdata, drvdata->sysfs_buf);
+ if (!ret) {
+ drvdata->mode = CS_MODE_SYSFS;
+ atomic_inc(csdev->refcnt);
+ }
out:
spin_unlock_irqrestore(&drvdata->spinlock, flags);
@@ -1101,55 +1181,482 @@ static int tmc_enable_etr_sink_sysfs(struct coresight_device *csdev)
tmc_etr_free_sysfs_buf(free_buf);
if (!ret)
- dev_info(drvdata->dev, "TMC-ETR enabled\n");
+ dev_dbg(drvdata->dev, "TMC-ETR enabled\n");
return ret;
}
-static int tmc_enable_etr_sink_perf(struct coresight_device *csdev)
+/*
+ * alloc_etr_buf: Allocate ETR buffer for use by perf.
+ * The size of the hardware buffer is dependent on the size configured
+ * via sysfs and the perf ring buffer size. We prefer to allocate the
+ * largest possible size, scaling down the size by half until it
+ * reaches a minimum limit (1M), beyond which we give up.
+ */
+static struct etr_buf *
+alloc_etr_buf(struct tmc_drvdata *drvdata, struct perf_event *event,
+ int nr_pages, void **pages, bool snapshot)
{
- /* We don't support perf mode yet ! */
- return -EINVAL;
+ int node;
+ struct etr_buf *etr_buf;
+ unsigned long size;
+
+ node = (event->cpu == -1) ? NUMA_NO_NODE : cpu_to_node(event->cpu);
+ /*
+ * Try to match the perf ring buffer size if it is larger
+ * than the size requested via sysfs.
+ */
+ if ((nr_pages << PAGE_SHIFT) > drvdata->size) {
+ etr_buf = tmc_alloc_etr_buf(drvdata, (nr_pages << PAGE_SHIFT),
+ 0, node, NULL);
+ if (!IS_ERR(etr_buf))
+ goto done;
+ }
+
+ /*
+ * Else switch to configured size for this ETR
+ * and scale down until we hit the minimum limit.
+ */
+ size = drvdata->size;
+ do {
+ etr_buf = tmc_alloc_etr_buf(drvdata, size, 0, node, NULL);
+ if (!IS_ERR(etr_buf))
+ goto done;
+ size /= 2;
+ } while (size >= TMC_ETR_PERF_MIN_BUF_SIZE);
+
+ return ERR_PTR(-ENOMEM);
+
+done:
+ return etr_buf;
}
-static int tmc_enable_etr_sink(struct coresight_device *csdev, u32 mode)
+static struct etr_buf *
+get_perf_etr_buf_cpu_wide(struct tmc_drvdata *drvdata,
+ struct perf_event *event, int nr_pages,
+ void **pages, bool snapshot)
+{
+ int ret;
+ pid_t pid = task_pid_nr(event->owner);
+ struct etr_buf *etr_buf;
+
+retry:
+ /*
+ * An etr_perf_buffer is associated with an event and holds a reference
+ * to the AUX ring buffer that was created for that event. In CPU-wide
+ * N:1 mode multiple events (one per CPU), each with its own AUX ring
+ * buffer, share a sink. As such an etr_perf_buffer is created for each
+ * event but a single etr_buf associated with the ETR is shared between
+ * them. The last event in a trace session will copy the content of the
+ * etr_buf to its AUX ring buffer. Ring buffer associated to other
+ * events are simply not used an freed as events are destoyed. We still
+ * need to allocate a ring buffer for each event since we don't know
+ * which event will be last.
+ */
+
+ /*
+ * The first thing to do here is check if an etr_buf has already been
+ * allocated for this session. If so it is shared with this event,
+ * otherwise it is created.
+ */
+ mutex_lock(&drvdata->idr_mutex);
+ etr_buf = idr_find(&drvdata->idr, pid);
+ if (etr_buf) {
+ refcount_inc(&etr_buf->refcount);
+ mutex_unlock(&drvdata->idr_mutex);
+ return etr_buf;
+ }
+
+ /* If we made it here no buffer has been allocated, do so now. */
+ mutex_unlock(&drvdata->idr_mutex);
+
+ etr_buf = alloc_etr_buf(drvdata, event, nr_pages, pages, snapshot);
+ if (IS_ERR(etr_buf))
+ return etr_buf;
+
+ /* Now that we have a buffer, add it to the IDR. */
+ mutex_lock(&drvdata->idr_mutex);
+ ret = idr_alloc(&drvdata->idr, etr_buf, pid, pid + 1, GFP_KERNEL);
+ mutex_unlock(&drvdata->idr_mutex);
+
+ /* Another event with this session ID has allocated this buffer. */
+ if (ret == -ENOSPC) {
+ tmc_free_etr_buf(etr_buf);
+ goto retry;
+ }
+
+ /* The IDR can't allocate room for a new session, abandon ship. */
+ if (ret == -ENOMEM) {
+ tmc_free_etr_buf(etr_buf);
+ return ERR_PTR(ret);
+ }
+
+
+ return etr_buf;
+}
+
+static struct etr_buf *
+get_perf_etr_buf_per_thread(struct tmc_drvdata *drvdata,
+ struct perf_event *event, int nr_pages,
+ void **pages, bool snapshot)
+{
+ /*
+ * In per-thread mode the etr_buf isn't shared, so just go ahead
+ * with memory allocation.
+ */
+ return alloc_etr_buf(drvdata, event, nr_pages, pages, snapshot);
+}
+
+static struct etr_buf *
+get_perf_etr_buf(struct tmc_drvdata *drvdata, struct perf_event *event,
+ int nr_pages, void **pages, bool snapshot)
+{
+ if (event->cpu == -1)
+ return get_perf_etr_buf_per_thread(drvdata, event, nr_pages,
+ pages, snapshot);
+
+ return get_perf_etr_buf_cpu_wide(drvdata, event, nr_pages,
+ pages, snapshot);
+}
+
+static struct etr_perf_buffer *
+tmc_etr_setup_perf_buf(struct tmc_drvdata *drvdata, struct perf_event *event,
+ int nr_pages, void **pages, bool snapshot)
+{
+ int node;
+ struct etr_buf *etr_buf;
+ struct etr_perf_buffer *etr_perf;
+
+ node = (event->cpu == -1) ? NUMA_NO_NODE : cpu_to_node(event->cpu);
+
+ etr_perf = kzalloc_node(sizeof(*etr_perf), GFP_KERNEL, node);
+ if (!etr_perf)
+ return ERR_PTR(-ENOMEM);
+
+ etr_buf = get_perf_etr_buf(drvdata, event, nr_pages, pages, snapshot);
+ if (!IS_ERR(etr_buf))
+ goto done;
+
+ kfree(etr_perf);
+ return ERR_PTR(-ENOMEM);
+
+done:
+ /*
+ * Keep a reference to the ETR this buffer has been allocated for
+ * in order to have access to the IDR in tmc_free_etr_buffer().
+ */
+ etr_perf->drvdata = drvdata;
+ etr_perf->etr_buf = etr_buf;
+
+ return etr_perf;
+}
+
+
+static void *tmc_alloc_etr_buffer(struct coresight_device *csdev,
+ struct perf_event *event, void **pages,
+ int nr_pages, bool snapshot)
+{
+ struct etr_perf_buffer *etr_perf;
+ struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
+
+ etr_perf = tmc_etr_setup_perf_buf(drvdata, event,
+ nr_pages, pages, snapshot);
+ if (IS_ERR(etr_perf)) {
+ dev_dbg(drvdata->dev, "Unable to allocate ETR buffer\n");
+ return NULL;
+ }
+
+ etr_perf->pid = task_pid_nr(event->owner);
+ etr_perf->snapshot = snapshot;
+ etr_perf->nr_pages = nr_pages;
+ etr_perf->pages = pages;
+
+ return etr_perf;
+}
+
+static void tmc_free_etr_buffer(void *config)
+{
+ struct etr_perf_buffer *etr_perf = config;
+ struct tmc_drvdata *drvdata = etr_perf->drvdata;
+ struct etr_buf *buf, *etr_buf = etr_perf->etr_buf;
+
+ if (!etr_buf)
+ goto free_etr_perf_buffer;
+
+ mutex_lock(&drvdata->idr_mutex);
+ /* If we are not the last one to use the buffer, don't touch it. */
+ if (!refcount_dec_and_test(&etr_buf->refcount)) {
+ mutex_unlock(&drvdata->idr_mutex);
+ goto free_etr_perf_buffer;
+ }
+
+ /* We are the last one, remove from the IDR and free the buffer. */
+ buf = idr_remove(&drvdata->idr, etr_perf->pid);
+ mutex_unlock(&drvdata->idr_mutex);
+
+ /*
+ * Something went very wrong if the buffer associated with this ID
+ * is not the same in the IDR. Leak to avoid use after free.
+ */
+ if (buf && WARN_ON(buf != etr_buf))
+ goto free_etr_perf_buffer;
+
+ tmc_free_etr_buf(etr_perf->etr_buf);
+
+free_etr_perf_buffer:
+ kfree(etr_perf);
+}
+
+/*
+ * tmc_etr_sync_perf_buffer: Copy the actual trace data from the hardware
+ * buffer to the perf ring buffer.
+ */
+static void tmc_etr_sync_perf_buffer(struct etr_perf_buffer *etr_perf,
+ unsigned long src_offset,
+ unsigned long to_copy)
+{
+ long bytes;
+ long pg_idx, pg_offset;
+ unsigned long head = etr_perf->head;
+ char **dst_pages, *src_buf;
+ struct etr_buf *etr_buf = etr_perf->etr_buf;
+
+ head = etr_perf->head;
+ pg_idx = head >> PAGE_SHIFT;
+ pg_offset = head & (PAGE_SIZE - 1);
+ dst_pages = (char **)etr_perf->pages;
+
+ while (to_copy > 0) {
+ /*
+ * In one iteration, we can copy minimum of :
+ * 1) what is available in the source buffer,
+ * 2) what is available in the source buffer, before it
+ * wraps around.
+ * 3) what is available in the destination page.
+ * in one iteration.
+ */
+ if (src_offset >= etr_buf->size)
+ src_offset -= etr_buf->size;
+ bytes = tmc_etr_buf_get_data(etr_buf, src_offset, to_copy,
+ &src_buf);
+ if (WARN_ON_ONCE(bytes <= 0))
+ break;
+ bytes = min(bytes, (long)(PAGE_SIZE - pg_offset));
+
+ memcpy(dst_pages[pg_idx] + pg_offset, src_buf, bytes);
+
+ to_copy -= bytes;
+
+ /* Move destination pointers */
+ pg_offset += bytes;
+ if (pg_offset == PAGE_SIZE) {
+ pg_offset = 0;
+ if (++pg_idx == etr_perf->nr_pages)
+ pg_idx = 0;
+ }
+
+ /* Move source pointers */
+ src_offset += bytes;
+ }
+}
+
+/*
+ * tmc_update_etr_buffer : Update the perf ring buffer with the
+ * available trace data. We use software double buffering at the moment.
+ *
+ * TODO: Add support for reusing the perf ring buffer.
+ */
+static unsigned long
+tmc_update_etr_buffer(struct coresight_device *csdev,
+ struct perf_output_handle *handle,
+ void *config)
+{
+ bool lost = false;
+ unsigned long flags, offset, size = 0;
+ struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
+ struct etr_perf_buffer *etr_perf = config;
+ struct etr_buf *etr_buf = etr_perf->etr_buf;
+
+ spin_lock_irqsave(&drvdata->spinlock, flags);
+
+ /* Don't do anything if another tracer is using this sink */
+ if (atomic_read(csdev->refcnt) != 1) {
+ spin_unlock_irqrestore(&drvdata->spinlock, flags);
+ goto out;
+ }
+
+ if (WARN_ON(drvdata->perf_buf != etr_buf)) {
+ lost = true;
+ spin_unlock_irqrestore(&drvdata->spinlock, flags);
+ goto out;
+ }
+
+ CS_UNLOCK(drvdata->base);
+
+ tmc_flush_and_stop(drvdata);
+ tmc_sync_etr_buf(drvdata);
+
+ CS_LOCK(drvdata->base);
+ spin_unlock_irqrestore(&drvdata->spinlock, flags);
+
+ lost = etr_buf->full;
+ offset = etr_buf->offset;
+ size = etr_buf->len;
+
+ /*
+ * The ETR buffer may be bigger than the space available in the
+ * perf ring buffer (handle->size). If so advance the offset so that we
+ * get the latest trace data. In snapshot mode none of that matters
+ * since we are expected to clobber stale data in favour of the latest
+ * traces.
+ */
+ if (!etr_perf->snapshot && size > handle->size) {
+ u32 mask = tmc_get_memwidth_mask(drvdata);
+
+ /*
+ * Make sure the new size is aligned in accordance with the
+ * requirement explained in function tmc_get_memwidth_mask().
+ */
+ size = handle->size & mask;
+ offset = etr_buf->offset + etr_buf->len - size;
+
+ if (offset >= etr_buf->size)
+ offset -= etr_buf->size;
+ lost = true;
+ }
+
+ /* Insert barrier packets at the beginning, if there was an overflow */
+ if (lost)
+ tmc_etr_buf_insert_barrier_packet(etr_buf, etr_buf->offset);
+ tmc_etr_sync_perf_buffer(etr_perf, offset, size);
+
+ /*
+ * In snapshot mode we simply increment the head by the number of byte
+ * that were written. User space function cs_etm_find_snapshot() will
+ * figure out how many bytes to get from the AUX buffer based on the
+ * position of the head.
+ */
+ if (etr_perf->snapshot)
+ handle->head += size;
+out:
+ /*
+ * Don't set the TRUNCATED flag in snapshot mode because 1) the
+ * captured buffer is expected to be truncated and 2) a full buffer
+ * prevents the event from being re-enabled by the perf core,
+ * resulting in stale data being send to user space.
+ */
+ if (!etr_perf->snapshot && lost)
+ perf_aux_output_flag(handle, PERF_AUX_FLAG_TRUNCATED);
+ return size;
+}
+
+static int tmc_enable_etr_sink_perf(struct coresight_device *csdev, void *data)
+{
+ int rc = 0;
+ pid_t pid;
+ unsigned long flags;
+ struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
+ struct perf_output_handle *handle = data;
+ struct etr_perf_buffer *etr_perf = etm_perf_sink_config(handle);
+
+ spin_lock_irqsave(&drvdata->spinlock, flags);
+ /* Don't use this sink if it is already claimed by sysFS */
+ if (drvdata->mode == CS_MODE_SYSFS) {
+ rc = -EBUSY;
+ goto unlock_out;
+ }
+
+ if (WARN_ON(!etr_perf || !etr_perf->etr_buf)) {
+ rc = -EINVAL;
+ goto unlock_out;
+ }
+
+ /* Get a handle on the pid of the process to monitor */
+ pid = etr_perf->pid;
+
+ /* Do not proceed if this device is associated with another session */
+ if (drvdata->pid != -1 && drvdata->pid != pid) {
+ rc = -EBUSY;
+ goto unlock_out;
+ }
+
+ etr_perf->head = PERF_IDX2OFF(handle->head, etr_perf);
+
+ /*
+ * No HW configuration is needed if the sink is already in
+ * use for this session.
+ */
+ if (drvdata->pid == pid) {
+ atomic_inc(csdev->refcnt);
+ goto unlock_out;
+ }
+
+ rc = tmc_etr_enable_hw(drvdata, etr_perf->etr_buf);
+ if (!rc) {
+ /* Associate with monitored process. */
+ drvdata->pid = pid;
+ drvdata->mode = CS_MODE_PERF;
+ drvdata->perf_buf = etr_perf->etr_buf;
+ atomic_inc(csdev->refcnt);
+ }
+
+unlock_out:
+ spin_unlock_irqrestore(&drvdata->spinlock, flags);
+ return rc;
+}
+
+static int tmc_enable_etr_sink(struct coresight_device *csdev,
+ u32 mode, void *data)
{
switch (mode) {
case CS_MODE_SYSFS:
return tmc_enable_etr_sink_sysfs(csdev);
case CS_MODE_PERF:
- return tmc_enable_etr_sink_perf(csdev);
+ return tmc_enable_etr_sink_perf(csdev, data);
}
/* We shouldn't be here */
return -EINVAL;
}
-static void tmc_disable_etr_sink(struct coresight_device *csdev)
+static int tmc_disable_etr_sink(struct coresight_device *csdev)
{
unsigned long flags;
struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
spin_lock_irqsave(&drvdata->spinlock, flags);
+
if (drvdata->reading) {
spin_unlock_irqrestore(&drvdata->spinlock, flags);
- return;
+ return -EBUSY;
}
- /* Disable the TMC only if it needs to */
- if (drvdata->mode != CS_MODE_DISABLED) {
- tmc_etr_disable_hw(drvdata);
- drvdata->mode = CS_MODE_DISABLED;
+ if (atomic_dec_return(csdev->refcnt)) {
+ spin_unlock_irqrestore(&drvdata->spinlock, flags);
+ return -EBUSY;
}
+ /* Complain if we (somehow) got out of sync */
+ WARN_ON_ONCE(drvdata->mode == CS_MODE_DISABLED);
+ tmc_etr_disable_hw(drvdata);
+ /* Dissociate from monitored process. */
+ drvdata->pid = -1;
+ drvdata->mode = CS_MODE_DISABLED;
+ /* Reset perf specific data */
+ drvdata->perf_buf = NULL;
+
spin_unlock_irqrestore(&drvdata->spinlock, flags);
- dev_info(drvdata->dev, "TMC-ETR disabled\n");
+ dev_dbg(drvdata->dev, "TMC-ETR disabled\n");
+ return 0;
}
static const struct coresight_ops_sink tmc_etr_sink_ops = {
.enable = tmc_enable_etr_sink,
.disable = tmc_disable_etr_sink,
+ .alloc_buffer = tmc_alloc_etr_buffer,
+ .update_buffer = tmc_update_etr_buffer,
+ .free_buffer = tmc_free_etr_buffer,
};
const struct coresight_ops tmc_etr_cs_ops = {
@@ -1171,21 +1678,19 @@ int tmc_read_prepare_etr(struct tmc_drvdata *drvdata)
goto out;
}
- /* Don't interfere if operated from Perf */
- if (drvdata->mode == CS_MODE_PERF) {
- ret = -EINVAL;
- goto out;
- }
-
- /* If sysfs_buf is NULL the trace data has been read already */
+ /*
+ * We can safely allow reads even if the ETR is operating in PERF mode,
+ * since the sysfs session is captured in mode specific data.
+ * If drvdata::sysfs_data is NULL the trace data has been read already.
+ */
if (!drvdata->sysfs_buf) {
ret = -EINVAL;
goto out;
}
- /* Disable the TMC if we are trying to read from a running session */
+ /* Disable the TMC if we are trying to read from a running session. */
if (drvdata->mode == CS_MODE_SYSFS)
- tmc_etr_disable_hw(drvdata);
+ __tmc_etr_disable_hw(drvdata);
drvdata->reading = true;
out:
@@ -1212,7 +1717,7 @@ int tmc_read_unprepare_etr(struct tmc_drvdata *drvdata)
* buffer. Since the tracer is still enabled drvdata::buf can't
* be NULL.
*/
- tmc_etr_enable_hw(drvdata, drvdata->sysfs_buf);
+ __tmc_etr_enable_hw(drvdata);
} else {
/*
* The ETR is not tracing and the buffer was just read.
diff --git a/drivers/hwtracing/coresight/coresight-tmc.c b/drivers/hwtracing/coresight/coresight-tmc.c
index 1b817ec..819fab6 100644
--- a/drivers/hwtracing/coresight/coresight-tmc.c
+++ b/drivers/hwtracing/coresight/coresight-tmc.c
@@ -8,10 +8,12 @@
#include <linux/init.h>
#include <linux/types.h>
#include <linux/device.h>
+#include <linux/idr.h>
#include <linux/io.h>
#include <linux/err.h>
#include <linux/fs.h>
#include <linux/miscdevice.h>
+#include <linux/mutex.h>
#include <linux/property.h>
#include <linux/uaccess.h>
#include <linux/slab.h>
@@ -64,6 +66,34 @@ void tmc_disable_hw(struct tmc_drvdata *drvdata)
writel_relaxed(0x0, drvdata->base + TMC_CTL);
}
+u32 tmc_get_memwidth_mask(struct tmc_drvdata *drvdata)
+{
+ u32 mask = 0;
+
+ /*
+ * When moving RRP or an offset address forward, the new values must
+ * be byte-address aligned to the width of the trace memory databus
+ * _and_ to a frame boundary (16 byte), whichever is the biggest. For
+ * example, for 32-bit, 64-bit and 128-bit wide trace memory, the four
+ * LSBs must be 0s. For 256-bit wide trace memory, the five LSBs must
+ * be 0s.
+ */
+ switch (drvdata->memwidth) {
+ case TMC_MEM_INTF_WIDTH_32BITS:
+ /* fallthrough */
+ case TMC_MEM_INTF_WIDTH_64BITS:
+ /* fallthrough */
+ case TMC_MEM_INTF_WIDTH_128BITS:
+ mask = GENMASK(31, 4);
+ break;
+ case TMC_MEM_INTF_WIDTH_256BITS:
+ mask = GENMASK(31, 5);
+ break;
+ }
+
+ return mask;
+}
+
static int tmc_read_prepare(struct tmc_drvdata *drvdata)
{
int ret = 0;
@@ -81,7 +111,7 @@ static int tmc_read_prepare(struct tmc_drvdata *drvdata)
}
if (!ret)
- dev_info(drvdata->dev, "TMC read start\n");
+ dev_dbg(drvdata->dev, "TMC read start\n");
return ret;
}
@@ -103,7 +133,7 @@ static int tmc_read_unprepare(struct tmc_drvdata *drvdata)
}
if (!ret)
- dev_info(drvdata->dev, "TMC read end\n");
+ dev_dbg(drvdata->dev, "TMC read end\n");
return ret;
}
@@ -229,6 +259,7 @@ coresight_tmc_reg(ffcr, TMC_FFCR);
coresight_tmc_reg(mode, TMC_MODE);
coresight_tmc_reg(pscr, TMC_PSCR);
coresight_tmc_reg(axictl, TMC_AXICTL);
+coresight_tmc_reg(authstatus, TMC_AUTHSTATUS);
coresight_tmc_reg(devid, CORESIGHT_DEVID);
coresight_tmc_reg64(rrp, TMC_RRP, TMC_RRPHI);
coresight_tmc_reg64(rwp, TMC_RWP, TMC_RWPHI);
@@ -248,6 +279,7 @@ static struct attribute *coresight_tmc_mgmt_attrs[] = {
&dev_attr_devid.attr,
&dev_attr_dba.attr,
&dev_attr_axictl.attr,
+ &dev_attr_authstatus.attr,
NULL,
};
@@ -336,12 +368,24 @@ static inline bool tmc_etr_can_use_sg(struct tmc_drvdata *drvdata)
"arm,scatter-gather");
}
+static inline bool tmc_etr_has_non_secure_access(struct tmc_drvdata *drvdata)
+{
+ u32 auth = readl_relaxed(drvdata->base + TMC_AUTHSTATUS);
+
+ return (auth & TMC_AUTH_NSID_MASK) == 0x3;
+}
+
/* Detect and initialise the capabilities of a TMC ETR */
static int tmc_etr_setup_caps(struct tmc_drvdata *drvdata,
u32 devid, void *dev_caps)
{
+ int rc;
+
u32 dma_mask = 0;
+ if (!tmc_etr_has_non_secure_access(drvdata))
+ return -EACCES;
+
/* Set the unadvertised capabilities */
tmc_etr_init_caps(drvdata, (u32)(unsigned long)dev_caps);
@@ -369,7 +413,10 @@ static int tmc_etr_setup_caps(struct tmc_drvdata *drvdata,
dma_mask = 40;
}
- return dma_set_mask_and_coherent(drvdata->dev, DMA_BIT_MASK(dma_mask));
+ rc = dma_set_mask_and_coherent(drvdata->dev, DMA_BIT_MASK(dma_mask));
+ if (rc)
+ dev_err(drvdata->dev, "Failed to setup DMA mask: %d\n", rc);
+ return rc;
}
static int tmc_probe(struct amba_device *adev, const struct amba_id *id)
@@ -415,6 +462,8 @@ static int tmc_probe(struct amba_device *adev, const struct amba_id *id)
devid = readl_relaxed(drvdata->base + CORESIGHT_DEVID);
drvdata->config_type = BMVAL(devid, 6, 7);
drvdata->memwidth = tmc_get_memwidth(devid);
+ /* This device is not associated with a session */
+ drvdata->pid = -1;
if (drvdata->config_type == TMC_CONFIG_TYPE_ETR) {
if (np)
@@ -427,8 +476,6 @@ static int tmc_probe(struct amba_device *adev, const struct amba_id *id)
drvdata->size = readl_relaxed(drvdata->base + TMC_RSZ) * 4;
}
- pm_runtime_put(&adev->dev);
-
desc.pdata = pdata;
desc.dev = dev;
desc.groups = coresight_tmc_groups;
@@ -446,6 +493,8 @@ static int tmc_probe(struct amba_device *adev, const struct amba_id *id)
ret = tmc_etr_setup_caps(drvdata, devid, id->data);
if (ret)
goto out;
+ idr_init(&drvdata->idr);
+ mutex_init(&drvdata->idr_mutex);
break;
case TMC_CONFIG_TYPE_ETF:
desc.type = CORESIGHT_DEV_TYPE_LINKSINK;
@@ -470,6 +519,8 @@ static int tmc_probe(struct amba_device *adev, const struct amba_id *id)
ret = misc_register(&drvdata->miscdev);
if (ret)
coresight_unregister(drvdata->csdev);
+ else
+ pm_runtime_put(&adev->dev);
out:
return ret;
}
diff --git a/drivers/hwtracing/coresight/coresight-tmc.h b/drivers/hwtracing/coresight/coresight-tmc.h
index 872f63e..9ea049b 100644
--- a/drivers/hwtracing/coresight/coresight-tmc.h
+++ b/drivers/hwtracing/coresight/coresight-tmc.h
@@ -8,7 +8,10 @@
#define _CORESIGHT_TMC_H
#include <linux/dma-mapping.h>
+#include <linux/idr.h>
#include <linux/miscdevice.h>
+#include <linux/mutex.h>
+#include <linux/refcount.h>
#define TMC_RSZ 0x004
#define TMC_STS 0x00c
@@ -36,6 +39,7 @@
#define TMC_ITATBCTR2 0xef0
#define TMC_ITATBCTR1 0xef4
#define TMC_ITATBCTR0 0xef8
+#define TMC_AUTHSTATUS 0xfb8
/* register description */
/* TMC_CTL - 0x020 */
@@ -44,6 +48,7 @@
#define TMC_STS_TMCREADY_BIT 2
#define TMC_STS_FULL BIT(0)
#define TMC_STS_TRIGGERED BIT(1)
+#define TMC_STS_MEMERR BIT(5)
/*
* TMC_AXICTL - 0x110
*
@@ -86,6 +91,8 @@
#define TMC_DEVID_AXIAW_SHIFT 17
#define TMC_DEVID_AXIAW_MASK 0x7f
+#define TMC_AUTH_NSID_MASK GENMASK(1, 0)
+
enum tmc_config_type {
TMC_CONFIG_TYPE_ETB,
TMC_CONFIG_TYPE_ETR,
@@ -133,6 +140,7 @@ struct etr_buf_operations;
/**
* struct etr_buf - Details of the buffer used by ETR
+ * refcount ; Number of sources currently using this etr_buf.
* @mode : Mode of the ETR buffer, contiguous, Scatter Gather etc.
* @full : Trace data overflow
* @size : Size of the buffer.
@@ -143,6 +151,7 @@ struct etr_buf_operations;
* @private : Backend specific information for the buf
*/
struct etr_buf {
+ refcount_t refcount;
enum etr_mode mode;
bool full;
ssize_t size;
@@ -160,6 +169,8 @@ struct etr_buf {
* @csdev: component vitals needed by the framework.
* @miscdev: specifics to handle "/dev/xyz.tmc" entry.
* @spinlock: only one at a time pls.
+ * @pid: Process ID of the process being monitored by the session
+ * that is using this component.
* @buf: Snapshot of the trace data for ETF/ETB.
* @etr_buf: details of buffer used in TMC-ETR
* @len: size of the available trace for ETF/ETB.
@@ -170,7 +181,10 @@ struct etr_buf {
* @trigger_cntr: amount of words to store after a trigger.
* @etr_caps: Bitmask of capabilities of the TMC ETR, inferred from the
* device configuration register (DEVID)
- * @sysfs_data: SYSFS buffer for ETR.
+ * @idr: Holds etr_bufs allocated for this ETR.
+ * @idr_mutex: Access serialisation for idr.
+ * @sysfs_buf: SYSFS buffer for ETR.
+ * @perf_buf: PERF buffer for ETR.
*/
struct tmc_drvdata {
void __iomem *base;
@@ -178,6 +192,7 @@ struct tmc_drvdata {
struct coresight_device *csdev;
struct miscdevice miscdev;
spinlock_t spinlock;
+ pid_t pid;
bool reading;
union {
char *buf; /* TMC ETB */
@@ -190,7 +205,10 @@ struct tmc_drvdata {
enum tmc_mem_intf_width memwidth;
u32 trigger_cntr;
u32 etr_caps;
+ struct idr idr;
+ struct mutex idr_mutex;
struct etr_buf *sysfs_buf;
+ struct etr_buf *perf_buf;
};
struct etr_buf_operations {
@@ -239,6 +257,7 @@ void tmc_wait_for_tmcready(struct tmc_drvdata *drvdata);
void tmc_flush_and_stop(struct tmc_drvdata *drvdata);
void tmc_enable_hw(struct tmc_drvdata *drvdata);
void tmc_disable_hw(struct tmc_drvdata *drvdata);
+u32 tmc_get_memwidth_mask(struct tmc_drvdata *drvdata);
/* ETB/ETF functions */
int tmc_read_prepare_etb(struct tmc_drvdata *drvdata);
diff --git a/drivers/hwtracing/coresight/coresight-tpiu.c b/drivers/hwtracing/coresight/coresight-tpiu.c
index 459ef93..7acbeff 100644
--- a/drivers/hwtracing/coresight/coresight-tpiu.c
+++ b/drivers/hwtracing/coresight/coresight-tpiu.c
@@ -5,6 +5,7 @@
* Description: CoreSight Trace Port Interface Unit driver
*/
+#include <linux/atomic.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/device.h>
@@ -68,13 +69,13 @@ static void tpiu_enable_hw(struct tpiu_drvdata *drvdata)
CS_LOCK(drvdata->base);
}
-static int tpiu_enable(struct coresight_device *csdev, u32 mode)
+static int tpiu_enable(struct coresight_device *csdev, u32 mode, void *__unused)
{
struct tpiu_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
tpiu_enable_hw(drvdata);
-
- dev_info(drvdata->dev, "TPIU enabled\n");
+ atomic_inc(csdev->refcnt);
+ dev_dbg(drvdata->dev, "TPIU enabled\n");
return 0;
}
@@ -94,13 +95,17 @@ static void tpiu_disable_hw(struct tpiu_drvdata *drvdata)
CS_LOCK(drvdata->base);
}
-static void tpiu_disable(struct coresight_device *csdev)
+static int tpiu_disable(struct coresight_device *csdev)
{
struct tpiu_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
+ if (atomic_dec_return(csdev->refcnt))
+ return -EBUSY;
+
tpiu_disable_hw(drvdata);
- dev_info(drvdata->dev, "TPIU disabled\n");
+ dev_dbg(drvdata->dev, "TPIU disabled\n");
+ return 0;
}
static const struct coresight_ops_sink tpiu_sink_ops = {
diff --git a/drivers/hwtracing/coresight/coresight.c b/drivers/hwtracing/coresight/coresight.c
index c0dabbd..ea641a8 100644
--- a/drivers/hwtracing/coresight/coresight.c
+++ b/drivers/hwtracing/coresight/coresight.c
@@ -11,6 +11,7 @@
#include <linux/err.h>
#include <linux/export.h>
#include <linux/slab.h>
+#include <linux/stringhash.h>
#include <linux/mutex.h>
#include <linux/clk.h>
#include <linux/coresight.h>
@@ -18,6 +19,7 @@
#include <linux/delay.h>
#include <linux/pm_runtime.h>
+#include "coresight-etm-perf.h"
#include "coresight-priv.h"
static DEFINE_MUTEX(coresight_mutex);
@@ -128,7 +130,94 @@ static int coresight_find_link_outport(struct coresight_device *csdev,
return -ENODEV;
}
-static int coresight_enable_sink(struct coresight_device *csdev, u32 mode)
+static inline u32 coresight_read_claim_tags(void __iomem *base)
+{
+ return readl_relaxed(base + CORESIGHT_CLAIMCLR);
+}
+
+static inline bool coresight_is_claimed_self_hosted(void __iomem *base)
+{
+ return coresight_read_claim_tags(base) == CORESIGHT_CLAIM_SELF_HOSTED;
+}
+
+static inline bool coresight_is_claimed_any(void __iomem *base)
+{
+ return coresight_read_claim_tags(base) != 0;
+}
+
+static inline void coresight_set_claim_tags(void __iomem *base)
+{
+ writel_relaxed(CORESIGHT_CLAIM_SELF_HOSTED, base + CORESIGHT_CLAIMSET);
+ isb();
+}
+
+static inline void coresight_clear_claim_tags(void __iomem *base)
+{
+ writel_relaxed(CORESIGHT_CLAIM_SELF_HOSTED, base + CORESIGHT_CLAIMCLR);
+ isb();
+}
+
+/*
+ * coresight_claim_device_unlocked : Claim the device for self-hosted usage
+ * to prevent an external tool from touching this device. As per PSCI
+ * standards, section "Preserving the execution context" => "Debug and Trace
+ * save and Restore", DBGCLAIM[1] is reserved for Self-hosted debug/trace and
+ * DBGCLAIM[0] is reserved for external tools.
+ *
+ * Called with CS_UNLOCKed for the component.
+ * Returns : 0 on success
+ */
+int coresight_claim_device_unlocked(void __iomem *base)
+{
+ if (coresight_is_claimed_any(base))
+ return -EBUSY;
+
+ coresight_set_claim_tags(base);
+ if (coresight_is_claimed_self_hosted(base))
+ return 0;
+ /* There was a race setting the tags, clean up and fail */
+ coresight_clear_claim_tags(base);
+ return -EBUSY;
+}
+
+int coresight_claim_device(void __iomem *base)
+{
+ int rc;
+
+ CS_UNLOCK(base);
+ rc = coresight_claim_device_unlocked(base);
+ CS_LOCK(base);
+
+ return rc;
+}
+
+/*
+ * coresight_disclaim_device_unlocked : Clear the claim tags for the device.
+ * Called with CS_UNLOCKed for the component.
+ */
+void coresight_disclaim_device_unlocked(void __iomem *base)
+{
+
+ if (coresight_is_claimed_self_hosted(base))
+ coresight_clear_claim_tags(base);
+ else
+ /*
+ * The external agent may have not honoured our claim
+ * and has manipulated it. Or something else has seriously
+ * gone wrong in our driver.
+ */
+ WARN_ON_ONCE(1);
+}
+
+void coresight_disclaim_device(void __iomem *base)
+{
+ CS_UNLOCK(base);
+ coresight_disclaim_device_unlocked(base);
+ CS_LOCK(base);
+}
+
+static int coresight_enable_sink(struct coresight_device *csdev,
+ u32 mode, void *data)
{
int ret;
@@ -136,35 +225,37 @@ static int coresight_enable_sink(struct coresight_device *csdev, u32 mode)
* We need to make sure the "new" session is compatible with the
* existing "mode" of operation.
*/
- if (sink_ops(csdev)->enable) {
- ret = sink_ops(csdev)->enable(csdev, mode);
- if (ret)
- return ret;
- csdev->enable = true;
- }
+ if (!sink_ops(csdev)->enable)
+ return -EINVAL;
- atomic_inc(csdev->refcnt);
+ ret = sink_ops(csdev)->enable(csdev, mode, data);
+ if (ret)
+ return ret;
+ csdev->enable = true;
return 0;
}
static void coresight_disable_sink(struct coresight_device *csdev)
{
- if (atomic_dec_return(csdev->refcnt) == 0) {
- if (sink_ops(csdev)->disable) {
- sink_ops(csdev)->disable(csdev);
- csdev->enable = false;
- }
- }
+ int ret;
+
+ if (!sink_ops(csdev)->disable)
+ return;
+
+ ret = sink_ops(csdev)->disable(csdev);
+ if (ret)
+ return;
+ csdev->enable = false;
}
static int coresight_enable_link(struct coresight_device *csdev,
struct coresight_device *parent,
struct coresight_device *child)
{
- int ret;
+ int ret = 0;
int link_subtype;
- int refport, inport, outport;
+ int inport, outport;
if (!parent || !child)
return -EINVAL;
@@ -173,27 +264,17 @@ static int coresight_enable_link(struct coresight_device *csdev,
outport = coresight_find_link_outport(csdev, child);
link_subtype = csdev->subtype.link_subtype;
- if (link_subtype == CORESIGHT_DEV_SUBTYPE_LINK_MERG)
- refport = inport;
- else if (link_subtype == CORESIGHT_DEV_SUBTYPE_LINK_SPLIT)
- refport = outport;
- else
- refport = 0;
+ if (link_subtype == CORESIGHT_DEV_SUBTYPE_LINK_MERG && inport < 0)
+ return inport;
+ if (link_subtype == CORESIGHT_DEV_SUBTYPE_LINK_SPLIT && outport < 0)
+ return outport;
- if (refport < 0)
- return refport;
+ if (link_ops(csdev)->enable)
+ ret = link_ops(csdev)->enable(csdev, inport, outport);
+ if (!ret)
+ csdev->enable = true;
- if (atomic_inc_return(&csdev->refcnt[refport]) == 1) {
- if (link_ops(csdev)->enable) {
- ret = link_ops(csdev)->enable(csdev, inport, outport);
- if (ret)
- return ret;
- }
- }
-
- csdev->enable = true;
-
- return 0;
+ return ret;
}
static void coresight_disable_link(struct coresight_device *csdev,
@@ -202,7 +283,7 @@ static void coresight_disable_link(struct coresight_device *csdev,
{
int i, nr_conns;
int link_subtype;
- int refport, inport, outport;
+ int inport, outport;
if (!parent || !child)
return;
@@ -212,20 +293,15 @@ static void coresight_disable_link(struct coresight_device *csdev,
link_subtype = csdev->subtype.link_subtype;
if (link_subtype == CORESIGHT_DEV_SUBTYPE_LINK_MERG) {
- refport = inport;
nr_conns = csdev->nr_inport;
} else if (link_subtype == CORESIGHT_DEV_SUBTYPE_LINK_SPLIT) {
- refport = outport;
nr_conns = csdev->nr_outport;
} else {
- refport = 0;
nr_conns = 1;
}
- if (atomic_dec_return(&csdev->refcnt[refport]) == 0) {
- if (link_ops(csdev)->disable)
- link_ops(csdev)->disable(csdev, inport, outport);
- }
+ if (link_ops(csdev)->disable)
+ link_ops(csdev)->disable(csdev, inport, outport);
for (i = 0; i < nr_conns; i++)
if (atomic_read(&csdev->refcnt[i]) != 0)
@@ -276,13 +352,21 @@ static bool coresight_disable_source(struct coresight_device *csdev)
return !csdev->enable;
}
-void coresight_disable_path(struct list_head *path)
+/*
+ * coresight_disable_path_from : Disable components in the given path beyond
+ * @nd in the list. If @nd is NULL, all the components, except the SOURCE are
+ * disabled.
+ */
+static void coresight_disable_path_from(struct list_head *path,
+ struct coresight_node *nd)
{
u32 type;
- struct coresight_node *nd;
struct coresight_device *csdev, *parent, *child;
- list_for_each_entry(nd, path, link) {
+ if (!nd)
+ nd = list_first_entry(path, struct coresight_node, link);
+
+ list_for_each_entry_continue(nd, path, link) {
csdev = nd->csdev;
type = csdev->type;
@@ -302,7 +386,12 @@ void coresight_disable_path(struct list_head *path)
coresight_disable_sink(csdev);
break;
case CORESIGHT_DEV_TYPE_SOURCE:
- /* sources are disabled from either sysFS or Perf */
+ /*
+ * We skip the first node in the path assuming that it
+ * is the source. So we don't expect a source device in
+ * the middle of a path.
+ */
+ WARN_ON(1);
break;
case CORESIGHT_DEV_TYPE_LINK:
parent = list_prev_entry(nd, link)->csdev;
@@ -315,7 +404,12 @@ void coresight_disable_path(struct list_head *path)
}
}
-int coresight_enable_path(struct list_head *path, u32 mode)
+void coresight_disable_path(struct list_head *path)
+{
+ coresight_disable_path_from(path, NULL);
+}
+
+int coresight_enable_path(struct list_head *path, u32 mode, void *sink_data)
{
int ret = 0;
@@ -340,7 +434,7 @@ int coresight_enable_path(struct list_head *path, u32 mode)
switch (type) {
case CORESIGHT_DEV_TYPE_SINK:
- ret = coresight_enable_sink(csdev, mode);
+ ret = coresight_enable_sink(csdev, mode, sink_data);
/*
* Sink is the first component turned on. If we
* failed to enable the sink, there are no components
@@ -368,7 +462,7 @@ int coresight_enable_path(struct list_head *path, u32 mode)
out:
return ret;
err:
- coresight_disable_path(path);
+ coresight_disable_path_from(path, nd);
goto out;
}
@@ -433,6 +527,47 @@ struct coresight_device *coresight_get_enabled_sink(bool deactivate)
return dev ? to_coresight_device(dev) : NULL;
}
+static int coresight_sink_by_id(struct device *dev, void *data)
+{
+ struct coresight_device *csdev = to_coresight_device(dev);
+ unsigned long hash;
+
+ if (csdev->type == CORESIGHT_DEV_TYPE_SINK ||
+ csdev->type == CORESIGHT_DEV_TYPE_LINKSINK) {
+
+ if (!csdev->ea)
+ return 0;
+ /*
+ * See function etm_perf_add_symlink_sink() to know where
+ * this comes from.
+ */
+ hash = (unsigned long)csdev->ea->var;
+
+ if ((u32)hash == *(u32 *)data)
+ return 1;
+ }
+
+ return 0;
+}
+
+/**
+ * coresight_get_sink_by_id - returns the sink that matches the id
+ * @id: Id of the sink to match
+ *
+ * The name of a sink is unique, whether it is found on the AMBA bus or
+ * otherwise. As such the hash of that name can easily be used to identify
+ * a sink.
+ */
+struct coresight_device *coresight_get_sink_by_id(u32 id)
+{
+ struct device *dev = NULL;
+
+ dev = bus_find_device(&coresight_bustype, NULL, &id,
+ coresight_sink_by_id);
+
+ return dev ? to_coresight_device(dev) : NULL;
+}
+
/*
* coresight_grab_device - Power up this device and any of the helper
* devices connected to it for trace operation. Since the helper devices
@@ -643,7 +778,7 @@ int coresight_enable(struct coresight_device *csdev)
goto out;
}
- ret = coresight_enable_path(path, CS_MODE_SYSFS);
+ ret = coresight_enable_path(path, CS_MODE_SYSFS, NULL);
if (ret)
goto err_path;
@@ -823,7 +958,6 @@ static void coresight_device_release(struct device *dev)
{
struct coresight_device *csdev = to_coresight_device(dev);
- kfree(csdev->conns);
kfree(csdev->refcnt);
kfree(csdev);
}
@@ -1014,7 +1148,7 @@ struct coresight_device *coresight_register(struct coresight_desc *desc)
csdev = kzalloc(sizeof(*csdev), GFP_KERNEL);
if (!csdev) {
ret = -ENOMEM;
- goto err_kzalloc_csdev;
+ goto err_out;
}
if (desc->type == CORESIGHT_DEV_TYPE_LINK ||
@@ -1030,7 +1164,7 @@ struct coresight_device *coresight_register(struct coresight_desc *desc)
refcnts = kcalloc(nr_refcnts, sizeof(*refcnts), GFP_KERNEL);
if (!refcnts) {
ret = -ENOMEM;
- goto err_kzalloc_refcnts;
+ goto err_free_csdev;
}
csdev->refcnt = refcnts;
@@ -1043,7 +1177,7 @@ struct coresight_device *coresight_register(struct coresight_desc *desc)
conns = kcalloc(csdev->nr_outport, sizeof(*conns), GFP_KERNEL);
if (!conns) {
ret = -ENOMEM;
- goto err_kzalloc_conns;
+ goto err_free_refcnts;
}
for (i = 0; i < csdev->nr_outport; i++) {
@@ -1070,7 +1204,27 @@ struct coresight_device *coresight_register(struct coresight_desc *desc)
ret = device_register(&csdev->dev);
if (ret) {
put_device(&csdev->dev);
- goto err_kzalloc_csdev;
+ /*
+ * All resources are free'd explicitly via
+ * coresight_device_release(), triggered from put_device().
+ */
+ goto err_out;
+ }
+
+ if (csdev->type == CORESIGHT_DEV_TYPE_SINK ||
+ csdev->type == CORESIGHT_DEV_TYPE_LINKSINK) {
+ ret = etm_perf_add_symlink_sink(csdev);
+
+ if (ret) {
+ device_unregister(&csdev->dev);
+ /*
+ * As with the above, all resources are free'd
+ * explicitly via coresight_device_release() triggered
+ * from put_device(), which is in turn called from
+ * function device_unregister().
+ */
+ goto err_out;
+ }
}
mutex_lock(&coresight_mutex);
@@ -1082,19 +1236,26 @@ struct coresight_device *coresight_register(struct coresight_desc *desc)
return csdev;
-err_kzalloc_conns:
+err_free_refcnts:
kfree(refcnts);
-err_kzalloc_refcnts:
+err_free_csdev:
kfree(csdev);
-err_kzalloc_csdev:
+err_out:
return ERR_PTR(ret);
}
EXPORT_SYMBOL_GPL(coresight_register);
void coresight_unregister(struct coresight_device *csdev)
{
+ etm_perf_del_symlink_sink(csdev);
/* Remove references of that device in the topology */
coresight_remove_conns(csdev);
device_unregister(&csdev->dev);
}
EXPORT_SYMBOL_GPL(coresight_unregister);
+
+bool coresight_loses_context_with_cpu(struct device *dev)
+{
+ return fwnode_property_present(dev_fwnode(dev),
+ "arm,coresight-loses-context-with-cpu");
+}
diff --git a/drivers/hwtracing/coresight/of_coresight.c b/drivers/hwtracing/coresight/of_coresight.c
index 6880bee..2ecdd14 100644
--- a/drivers/hwtracing/coresight/of_coresight.c
+++ b/drivers/hwtracing/coresight/of_coresight.c
@@ -114,17 +114,79 @@ int of_coresight_get_cpu(const struct device_node *node)
}
EXPORT_SYMBOL_GPL(of_coresight_get_cpu);
+/*
+ * of_coresight_parse_endpoint : Parse the given output endpoint @ep
+ * and fill the connection information in @pdata[@i].
+ *
+ * Parses the local port, remote device name and the remote port.
+ *
+ * Returns :
+ * 1 - If the parsing is successful and a connection record
+ * was created for an output connection.
+ * 0 - If the parsing completed without any fatal errors.
+ * -Errno - Fatal error, abort the scanning.
+ */
+static int of_coresight_parse_endpoint(struct device *dev,
+ struct device_node *ep,
+ struct coresight_platform_data *pdata,
+ int i)
+{
+ int ret = 0;
+ struct of_endpoint endpoint, rendpoint;
+ struct device_node *rparent = NULL;
+ struct device_node *rep = NULL;
+ struct device *rdev = NULL;
+
+ do {
+ /* Parse the local port details */
+ if (of_graph_parse_endpoint(ep, &endpoint))
+ break;
+ /*
+ * Get a handle on the remote endpoint and the device it is
+ * attached to.
+ */
+ rep = of_graph_get_remote_endpoint(ep);
+ if (!rep)
+ break;
+ rparent = of_graph_get_port_parent(rep);
+ if (!rparent)
+ break;
+ if (of_graph_parse_endpoint(rep, &rendpoint))
+ break;
+
+ /* If the remote device is not available, defer probing */
+ rdev = of_coresight_get_endpoint_device(rparent);
+ if (!rdev) {
+ ret = -EPROBE_DEFER;
+ break;
+ }
+
+ pdata->outports[i] = endpoint.port;
+ pdata->child_names[i] = devm_kstrdup(dev,
+ dev_name(rdev),
+ GFP_KERNEL);
+ pdata->child_ports[i] = rendpoint.port;
+ /* Connection record updated */
+ ret = 1;
+ } while (0);
+
+ if (rparent)
+ of_node_put(rparent);
+ if (rep)
+ of_node_put(rep);
+ if (rdev)
+ put_device(rdev);
+
+ return ret;
+}
+
struct coresight_platform_data *
of_get_coresight_platform_data(struct device *dev,
const struct device_node *node)
{
int i = 0, ret = 0;
struct coresight_platform_data *pdata;
- struct of_endpoint endpoint, rendpoint;
- struct device *rdev;
struct device_node *ep = NULL;
- struct device_node *rparent = NULL;
- struct device_node *rport = NULL;
pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
@@ -132,64 +194,39 @@ of_get_coresight_platform_data(struct device *dev,
/* Use device name as sysfs handle */
pdata->name = dev_name(dev);
+ pdata->cpu = of_coresight_get_cpu(node);
/* Get the number of input and output port for this component */
of_coresight_get_ports(node, &pdata->nr_inport, &pdata->nr_outport);
- if (pdata->nr_outport) {
- ret = of_coresight_alloc_memory(dev, pdata);
- if (ret)
+ /* If there are no output connections, we are done */
+ if (!pdata->nr_outport)
+ return pdata;
+
+ ret = of_coresight_alloc_memory(dev, pdata);
+ if (ret)
+ return ERR_PTR(ret);
+
+ /* Iterate through each port to discover topology */
+ while ((ep = of_graph_get_next_endpoint(node, ep))) {
+ /*
+ * No need to deal with input ports, as processing the
+ * output ports connected to them will process the details.
+ */
+ if (of_find_property(ep, "slave-mode", NULL))
+ continue;
+
+ ret = of_coresight_parse_endpoint(dev, ep, pdata, i);
+ switch (ret) {
+ case 1:
+ i++; /* Fall through */
+ case 0:
+ break;
+ default:
return ERR_PTR(ret);
-
- /* Iterate through each port to discover topology */
- do {
- /* Get a handle on a port */
- ep = of_graph_get_next_endpoint(node, ep);
- if (!ep)
- break;
-
- /*
- * No need to deal with input ports, processing for as
- * processing for output ports will deal with them.
- */
- if (of_find_property(ep, "slave-mode", NULL))
- continue;
-
- /* Get a handle on the local endpoint */
- ret = of_graph_parse_endpoint(ep, &endpoint);
-
- if (ret)
- continue;
-
- /* The local out port number */
- pdata->outports[i] = endpoint.port;
-
- /*
- * Get a handle on the remote port and parent
- * attached to it.
- */
- rparent = of_graph_get_remote_port_parent(ep);
- rport = of_graph_get_remote_port(ep);
-
- if (!rparent || !rport)
- continue;
-
- if (of_graph_parse_endpoint(rport, &rendpoint))
- continue;
-
- rdev = of_coresight_get_endpoint_device(rparent);
- if (!rdev)
- return ERR_PTR(-EPROBE_DEFER);
-
- pdata->child_names[i] = dev_name(rdev);
- pdata->child_ports[i] = rendpoint.id;
-
- i++;
- } while (ep);
+ }
}
- pdata->cpu = of_coresight_get_cpu(node);
-
return pdata;
}
EXPORT_SYMBOL_GPL(of_get_coresight_platform_data);
diff --git a/drivers/i2c/i2c-core-of.c b/drivers/i2c/i2c-core-of.c
index 14d4884..5f489a5 100644
--- a/drivers/i2c/i2c-core-of.c
+++ b/drivers/i2c/i2c-core-of.c
@@ -53,6 +53,7 @@ int of_i2c_get_board_info(struct device *dev, struct device_node *node,
info->addr = addr;
info->of_node = node;
+ info->fwnode = of_fwnode_handle(node);
if (of_property_read_bool(node, "host-notify"))
info->flags |= I2C_CLIENT_HOST_NOTIFY;
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index f9b59d4..44a7a25 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -1784,7 +1784,7 @@ static int ide_cd_probe(ide_drive_t *drive)
ide_cd_read_toc(drive);
g->fops = &idecd_ops;
g->flags |= GENHD_FL_REMOVABLE | GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE;
- device_add_disk(&drive->gendev, g, NULL);
+ device_add_disk(&drive->gendev, g);
return 0;
out_free_disk:
diff --git a/drivers/ide/ide-gd.c b/drivers/ide/ide-gd.c
index 04e008e..e823394 100644
--- a/drivers/ide/ide-gd.c
+++ b/drivers/ide/ide-gd.c
@@ -416,7 +416,7 @@ static int ide_gd_probe(ide_drive_t *drive)
if (drive->dev_flags & IDE_DFLAG_REMOVABLE)
g->flags = GENHD_FL_REMOVABLE;
g->fops = &ide_gd_ops;
- device_add_disk(&drive->gendev, g, NULL);
+ device_add_disk(&drive->gendev, g);
return 0;
out_free_disk:
diff --git a/drivers/iio/Kconfig b/drivers/iio/Kconfig
index d08aeb4..1dec0fe 100644
--- a/drivers/iio/Kconfig
+++ b/drivers/iio/Kconfig
@@ -4,7 +4,6 @@
menuconfig IIO
tristate "Industrial I/O support"
- select ANON_INODES
help
The industrial I/O subsystem provides a unified framework for
drivers for many different types of embedded sensors using a
diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig
index abb6660..176b943 100644
--- a/drivers/infiniband/Kconfig
+++ b/drivers/infiniband/Kconfig
@@ -25,7 +25,6 @@
config INFINIBAND_USER_ACCESS
tristate "InfiniBand userspace access (verbs and CM)"
- select ANON_INODES
---help---
Userspace InfiniBand access support. This enables the
kernel side of userspace verbs and the userspace
diff --git a/drivers/infiniband/core/uverbs_ioctl.c b/drivers/infiniband/core/uverbs_ioctl.c
index 1a6b229..3673ef7 100644
--- a/drivers/infiniband/core/uverbs_ioctl.c
+++ b/drivers/infiniband/core/uverbs_ioctl.c
@@ -126,7 +126,7 @@ __malloc void *_uverbs_alloc(struct uverbs_attr_bundle *bundle, size_t size,
res = (void *)pbundle->internal_buffer + pbundle->internal_used;
pbundle->internal_used =
ALIGN(new_used, sizeof(*pbundle->internal_buffer));
- if (flags & __GFP_ZERO)
+ if (want_init_on_alloc(flags))
memset(res, 0, size);
return res;
}
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index 3362dcb..05c617b 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -28,13 +28,6 @@
#include <linux/cdev.h>
#include "input-compat.h"
-enum evdev_clock_type {
- EV_CLK_REAL = 0,
- EV_CLK_MONO,
- EV_CLK_BOOT,
- EV_CLK_MAX
-};
-
struct evdev {
int open;
struct input_handle handle;
@@ -56,7 +49,7 @@ struct evdev_client {
struct fasync_struct *fasync;
struct evdev *evdev;
struct list_head node;
- unsigned int clk_type;
+ enum input_clock_type clk_type;
bool revoked;
unsigned long *evmasks[EV_CNT];
unsigned int bufsize;
@@ -152,17 +145,10 @@ static void __evdev_flush_queue(struct evdev_client *client, unsigned int type)
static void __evdev_queue_syn_dropped(struct evdev_client *client)
{
+ ktime_t *ev_time = input_get_timestamp(client->evdev->handle.dev);
+ struct timespec64 ts = ktime_to_timespec64(ev_time[client->clk_type]);
struct input_event ev;
- ktime_t time;
- struct timespec64 ts;
- time = client->clk_type == EV_CLK_REAL ?
- ktime_get_real() :
- client->clk_type == EV_CLK_MONO ?
- ktime_get() :
- ktime_get_boottime();
-
- ts = ktime_to_timespec64(time);
ev.input_event_sec = ts.tv_sec;
ev.input_event_usec = ts.tv_nsec / NSEC_PER_USEC;
ev.type = EV_SYN;
@@ -191,18 +177,18 @@ static void evdev_queue_syn_dropped(struct evdev_client *client)
static int evdev_set_clk_type(struct evdev_client *client, unsigned int clkid)
{
unsigned long flags;
- unsigned int clk_type;
+ enum input_clock_type clk_type;
switch (clkid) {
case CLOCK_REALTIME:
- clk_type = EV_CLK_REAL;
+ clk_type = INPUT_CLK_REAL;
break;
case CLOCK_MONOTONIC:
- clk_type = EV_CLK_MONO;
+ clk_type = INPUT_CLK_MONO;
break;
case CLOCK_BOOTTIME:
- clk_type = EV_CLK_BOOT;
+ clk_type = INPUT_CLK_BOOT;
break;
default:
return -EINVAL;
@@ -310,12 +296,7 @@ static void evdev_events(struct input_handle *handle,
{
struct evdev *evdev = handle->private;
struct evdev_client *client;
- ktime_t ev_time[EV_CLK_MAX];
-
- ev_time[EV_CLK_MONO] = ktime_get();
- ev_time[EV_CLK_REAL] = ktime_mono_to_real(ev_time[EV_CLK_MONO]);
- ev_time[EV_CLK_BOOT] = ktime_mono_to_any(ev_time[EV_CLK_MONO],
- TK_OFFS_BOOT);
+ ktime_t *ev_time = input_get_timestamp(handle->dev);
rcu_read_lock();
diff --git a/drivers/input/input.c b/drivers/input/input.c
index a0d9002..f96c40ae 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -193,6 +193,7 @@ static void input_repeat_key(struct timer_list *t)
input_value_sync
};
+ input_set_timestamp(dev, ktime_get());
input_pass_values(dev, vals, ARRAY_SIZE(vals));
if (dev->rep[REP_PERIOD])
@@ -400,6 +401,13 @@ static void input_handle_event(struct input_dev *dev,
if (dev->num_vals >= 2)
input_pass_values(dev, dev->vals, dev->num_vals);
dev->num_vals = 0;
+ /*
+ * Reset the timestamp on flush so we won't end up
+ * with a stale one. Note we only need to reset the
+ * monolithic one as we use its presence when deciding
+ * whether to generate a synthetic timestamp.
+ */
+ dev->timestamp[INPUT_CLK_MONO] = ktime_set(0, 0);
} else if (dev->num_vals >= dev->max_vals - 2) {
dev->vals[dev->num_vals++] = input_value_sync;
input_pass_values(dev, dev->vals, dev->num_vals);
@@ -1905,6 +1913,46 @@ void input_free_device(struct input_dev *dev)
EXPORT_SYMBOL(input_free_device);
/**
+ * input_set_timestamp - set timestamp for input events
+ * @dev: input device to set timestamp for
+ * @timestamp: the time at which the event has occurred
+ * in CLOCK_MONOTONIC
+ *
+ * This function is intended to provide to the input system a more
+ * accurate time of when an event actually occurred. The driver should
+ * call this function as soon as a timestamp is acquired ensuring
+ * clock conversions in input_set_timestamp are done correctly.
+ *
+ * The system entering suspend state between timestamp acquisition and
+ * calling input_set_timestamp can result in inaccurate conversions.
+ */
+void input_set_timestamp(struct input_dev *dev, ktime_t timestamp)
+{
+ dev->timestamp[INPUT_CLK_MONO] = timestamp;
+ dev->timestamp[INPUT_CLK_REAL] = ktime_mono_to_real(timestamp);
+ dev->timestamp[INPUT_CLK_BOOT] = ktime_mono_to_any(timestamp,
+ TK_OFFS_BOOT);
+}
+EXPORT_SYMBOL(input_set_timestamp);
+
+/**
+ * input_get_timestamp - get timestamp for input events
+ * @dev: input device to get timestamp from
+ *
+ * A valid timestamp is a timestamp of non-zero value.
+ */
+ktime_t *input_get_timestamp(struct input_dev *dev)
+{
+ const ktime_t invalid_timestamp = ktime_set(0, 0);
+
+ if (!ktime_compare(dev->timestamp[INPUT_CLK_MONO], invalid_timestamp))
+ input_set_timestamp(dev, ktime_get());
+
+ return dev->timestamp;
+}
+EXPORT_SYMBOL(input_get_timestamp);
+
+/**
* input_set_capability - mark device as capable of a certain event
* @dev: device that is capable of emitting or accepting event
* @type: type of the event (EV_KEY, EV_REL, etc...)
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index c60395b..c0e50c5 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -58,6 +58,18 @@
If unsure, say N here.
+config IOMMU_IO_PGTABLE_FAST
+ bool "Fast ARMv7/v8 Long Descriptor Format"
+ depends on ARM64_DMA_USE_IOMMU && IOMMU_DMA
+ help
+ Enable support for a subset of the ARM long descriptor pagetable
+ format. This allocator achieves fast performance by
+ pre-allocating and pre-populating page table memory up front.
+ only supports a 32 bit virtual address space.
+
+ This implementation is mainly optimized for use cases where the
+ buffers are small (<= 64K) since it only supports 4K page sizes.
+
endmenu
config IOMMU_DEBUGFS
@@ -332,11 +344,12 @@
# ARM IOMMU support
config ARM_SMMU
- bool "ARM Ltd. System MMU (SMMU) Support"
+ tristate "ARM Ltd. System MMU (SMMU) Support"
depends on (ARM64 || ARM) && MMU
select IOMMU_API
select IOMMU_IO_PGTABLE_LPAE
select ARM_DMA_USE_IOMMU if ARM
+ select ARM64_DMA_USE_IOMMU if ARM64
help
Support for implementations of the ARM System MMU architecture
versions 1 and 2.
diff --git a/drivers/iommu/Makefile b/drivers/iommu/Makefile
index e13ea19..11d6de2 100644
--- a/drivers/iommu/Makefile
+++ b/drivers/iommu/Makefile
@@ -8,6 +8,7 @@
obj-$(CONFIG_IOMMU_IO_PGTABLE_ARMV7S) += io-pgtable-arm-v7s.o
obj-$(CONFIG_IOMMU_IO_PGTABLE_LPAE) += io-pgtable-arm.o
obj-$(CONFIG_IOMMU_IOVA) += iova.o
+obj-$(CONFIG_IOMMU_IO_PGTABLE_FAST) += io-pgtable-fast.o dma-mapping-fast.o
obj-$(CONFIG_OF_IOMMU) += of_iommu.o
obj-$(CONFIG_MSM_IOMMU) += msm_iommu.o
obj-$(CONFIG_AMD_IOMMU) += amd_iommu.o amd_iommu_init.o amd_iommu_quirks.o
diff --git a/drivers/iommu/arm-smmu-regs.h b/drivers/iommu/arm-smmu-regs.h
index a1226e4..3921487 100644
--- a/drivers/iommu/arm-smmu-regs.h
+++ b/drivers/iommu/arm-smmu-regs.h
@@ -37,6 +37,9 @@
#define sCR0_VMID16EN (1 << 31)
#define sCR0_BSU_SHIFT 14
#define sCR0_BSU_MASK 0x3
+#define sCR0_SHCFG_SHIFT 22
+#define sCR0_SHCFG_MASK 0x3
+#define sCR0_SHCFG_NSH 3
/* Auxiliary Configuration register */
#define ARM_SMMU_GR0_sACR 0x10
@@ -105,6 +108,8 @@
#define ARM_SMMU_GR0_SMR(n) (0x800 + ((n) << 2))
#define SMR_VALID (1 << 31)
#define SMR_MASK_SHIFT 16
+#define SMR_MASK_MASK 0x7FFF
+#define SID_MASK 0x7FFF
#define SMR_ID_SHIFT 0
#define ARM_SMMU_GR0_S2CR(n) (0xc00 + ((n) << 2))
@@ -113,6 +118,9 @@
#define S2CR_EXIDVALID (1 << 10)
#define S2CR_TYPE_SHIFT 16
#define S2CR_TYPE_MASK 0x3
+#define S2CR_SHCFG_SHIFT 8
+#define S2CR_SHCFG_MASK 0x3
+#define S2CR_SHCFG_NSH 0x3
enum arm_smmu_s2cr_type {
S2CR_TYPE_TRANS,
S2CR_TYPE_BYPASS,
@@ -147,6 +155,9 @@ enum arm_smmu_s2cr_privcfg {
#define CBAR_IRPTNDX_SHIFT 24
#define CBAR_IRPTNDX_MASK 0xff
+#define ARM_SMMU_GR1_CBFRSYNRA(n) (0x400 + ((n) << 2))
+#define CBFRSYNRA_SID_MASK (0xffff)
+
#define ARM_SMMU_GR1_CBA2R(n) (0x800 + ((n) << 2))
#define CBA2R_RW64_32BIT (0 << 0)
#define CBA2R_RW64_64BIT (1 << 0)
@@ -165,20 +176,51 @@ enum arm_smmu_s2cr_privcfg {
#define ARM_SMMU_CB_S1_MAIR1 0x3c
#define ARM_SMMU_CB_PAR 0x50
#define ARM_SMMU_CB_FSR 0x58
+#define ARM_SMMU_CB_FSRRESTORE 0x5c
#define ARM_SMMU_CB_FAR 0x60
#define ARM_SMMU_CB_FSYNR0 0x68
+#define ARM_SMMU_CB_FSYNR1 0x6c
#define ARM_SMMU_CB_S1_TLBIVA 0x600
#define ARM_SMMU_CB_S1_TLBIASID 0x610
+#define ARM_SMMU_CB_S1_TLBIALL 0x618
#define ARM_SMMU_CB_S1_TLBIVAL 0x620
#define ARM_SMMU_CB_S2_TLBIIPAS2 0x630
#define ARM_SMMU_CB_S2_TLBIIPAS2L 0x638
#define ARM_SMMU_CB_TLBSYNC 0x7f0
#define ARM_SMMU_CB_TLBSTATUS 0x7f4
+#define TLBSTATUS_SACTIVE (1 << 0)
#define ARM_SMMU_CB_ATS1PR 0x800
#define ARM_SMMU_CB_ATSR 0x8f0
+#define ARM_SMMU_STATS_SYNC_INV_TBU_ACK 0x25dc
+#define TBU_SYNC_ACK_MASK 0x1ff
+#define TBU_SYNC_ACK_SHIFT 17
+#define TBU_SYNC_REQ_MASK 0x1
+#define TBU_SYNC_REQ_SHIFT 16
+#define TBU_INV_ACK_MASK 0x1ff
+#define TBU_INV_ACK_SHIFT 1
+#define TBU_INV_REQ_MASK 0x1
+#define TBU_INV_REQ_SHIFT 0
+#define ARM_SMMU_TBU_PWR_STATUS 0x2204
+#define ARM_SMMU_MMU2QSS_AND_SAFE_WAIT_CNTR 0x2670
+#define TCU_SYNC_IN_PRGSS_MASK 0x1
+#define TCU_SYNC_IN_PRGSS_SHIFT 20
+#define TCU_INV_IN_PRGSS_MASK 0x1
+#define TCU_INV_IN_PRGSS_SHIFT 16
+#define TBUID_SHIFT 10
+#define SCTLR_MEM_ATTR_SHIFT 16
+#define SCTLR_SHCFG_SHIFT 22
+#define SCTLR_RACFG_SHIFT 24
+#define SCTLR_WACFG_SHIFT 26
+#define SCTLR_SHCFG_MASK 0x3
+#define SCTLR_SHCFG_NSH 0x3
+#define SCTLR_RACFG_RA 0x2
+#define SCTLR_WACFG_WA 0x2
+#define SCTLR_MEM_ATTR_OISH_WB_CACHE 0xf
+#define SCTLR_MTCFG (1 << 20)
#define SCTLR_S1_ASIDPNE (1 << 12)
#define SCTLR_CFCFG (1 << 7)
+#define SCTLR_HUPCF (1 << 8)
#define SCTLR_CFIE (1 << 6)
#define SCTLR_CFRE (1 << 5)
#define SCTLR_E (1 << 4)
@@ -217,4 +259,18 @@ enum arm_smmu_s2cr_privcfg {
#define FSYNR0_WNR (1 << 4)
+#define IMPL_DEF1_MICRO_MMU_CTRL 0
+#define MICRO_MMU_CTRL_LOCAL_HALT_REQ (1 << 2)
+#define MICRO_MMU_CTRL_IDLE (1 << 3)
+
+/* Definitions for implementation-defined registers */
+#define ACTLR_QCOM_OSH_SHIFT 28
+#define ACTLR_QCOM_OSH 1
+
+#define ACTLR_QCOM_ISH_SHIFT 29
+#define ACTLR_QCOM_ISH 1
+
+#define ACTLR_QCOM_NSH_SHIFT 30
+#define ACTLR_QCOM_NSH 1
+
#endif /* _ARM_SMMU_REGS_H */
diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
index 6b76640..faf2e19 100644
--- a/drivers/iommu/arm-smmu-v3.c
+++ b/drivers/iommu/arm-smmu-v3.c
@@ -29,6 +29,7 @@
#include <linux/dma-iommu.h>
#include <linux/err.h>
#include <linux/interrupt.h>
+#include <linux/io-pgtable.h>
#include <linux/iommu.h>
#include <linux/iopoll.h>
#include <linux/module.h>
@@ -42,8 +43,6 @@
#include <linux/amba/bus.h>
-#include "io-pgtable.h"
-
/* MMIO registers */
#define ARM_SMMU_IDR0 0x0
#define IDR0_ST_LVL GENMASK(28, 27)
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index 0c3b8f1..299cf66 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -39,6 +39,7 @@
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/io-64-nonatomic-hi-lo.h>
+#include <linux/io-pgtable.h>
#include <linux/iommu.h>
#include <linux/iopoll.h>
#include <linux/module.h>
@@ -53,7 +54,6 @@
#include <linux/amba/bus.h>
-#include "io-pgtable.h"
#include "arm-smmu-regs.h"
/*
@@ -2188,7 +2188,9 @@ static int arm_smmu_legacy_bus_init(void)
arm_smmu_bus_init();
return 0;
}
+#ifndef MODULE
device_initcall_sync(arm_smmu_legacy_bus_init);
+#endif
static int arm_smmu_device_remove(struct platform_device *pdev)
{
@@ -2230,7 +2232,26 @@ static struct platform_driver arm_smmu_driver = {
.remove = arm_smmu_device_remove,
.shutdown = arm_smmu_device_shutdown,
};
-module_platform_driver(arm_smmu_driver);
+
+static int __init arm_smmu_driver_init(void)
+{
+ int ret;
+
+ ret = platform_driver_register(&arm_smmu_driver);
+#ifdef MODULE
+ if (!ret)
+ arm_smmu_legacy_bus_init();
+#endif
+ return ret;
+}
+
+static void __exit arm_smmu_driver_exit(void)
+{
+ platform_driver_unregister(&arm_smmu_driver);
+}
+
+subsys_initcall(arm_smmu_driver_init);
+module_exit(arm_smmu_driver_exit);
MODULE_DESCRIPTION("IOMMU API for ARM architected SMMU implementations");
MODULE_AUTHOR("Will Deacon <will.deacon@arm.com>");
diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
index 31ba8f9..a3659e6 100644
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c
@@ -307,6 +307,7 @@ int iommu_dma_init_domain(struct iommu_domain *domain, dma_addr_t base,
return 0;
}
+ iovad->end_pfn = end_pfn;
init_iova_domain(iovad, 1UL << order, base_pfn);
if (!dev)
return 0;
@@ -315,6 +316,50 @@ int iommu_dma_init_domain(struct iommu_domain *domain, dma_addr_t base,
}
EXPORT_SYMBOL(iommu_dma_init_domain);
+/*
+ * Should be called prior to using dma-apis
+ */
+int iommu_dma_reserve_iova(struct device *dev, dma_addr_t base,
+ u64 size)
+{
+ struct iommu_domain *domain;
+ struct iova_domain *iovad;
+ unsigned long pfn_lo, pfn_hi;
+
+ domain = iommu_get_domain_for_dev(dev);
+ if (!domain || !domain->iova_cookie)
+ return -EINVAL;
+
+ iovad = &((struct iommu_dma_cookie *)domain->iova_cookie)->iovad;
+
+ /* iova will be freed automatically by put_iova_domain() */
+ pfn_lo = iova_pfn(iovad, base);
+ pfn_hi = iova_pfn(iovad, base + size - 1);
+ if (!reserve_iova(iovad, pfn_lo, pfn_hi))
+ return -EINVAL;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(iommu_dma_reserve_iova);
+
+/*
+ * Should be called prior to using dma-apis.
+ */
+int iommu_dma_enable_best_fit_algo(struct device *dev)
+{
+ struct iommu_domain *domain;
+ struct iova_domain *iovad;
+
+ domain = iommu_get_domain_for_dev(dev);
+ if (!domain || !domain->iova_cookie)
+ return -EINVAL;
+
+ iovad = &((struct iommu_dma_cookie *)domain->iova_cookie)->iovad;
+ iovad->best_fit = true;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(iommu_dma_enable_best_fit_algo);
+
/**
* dma_info_to_prot - Translate DMA API directions and attributes to IOMMU API
* page flags.
@@ -332,6 +377,15 @@ int dma_info_to_prot(enum dma_data_direction dir, bool coherent,
if (attrs & DMA_ATTR_PRIVILEGED)
prot |= IOMMU_PRIV;
+ if (!(attrs & DMA_ATTR_EXEC_MAPPING))
+ prot |= IOMMU_NOEXEC;
+
+ if (attrs & DMA_ATTR_IOMMU_USE_UPSTREAM_HINT)
+ prot |= IOMMU_USE_UPSTREAM_HINT;
+
+ if (attrs & DMA_ATTR_IOMMU_USE_LLC_NWA)
+ prot |= IOMMU_USE_LLC_NWA;
+
switch (dir) {
case DMA_BIDIRECTIONAL:
return prot | IOMMU_READ | IOMMU_WRITE;
@@ -350,6 +404,7 @@ static dma_addr_t iommu_dma_alloc_iova(struct iommu_domain *domain,
struct iommu_dma_cookie *cookie = domain->iova_cookie;
struct iova_domain *iovad = &cookie->iovad;
unsigned long shift, iova_len, iova = 0;
+ dma_addr_t limit;
if (cookie->type == IOMMU_DMA_MSI_COOKIE) {
cookie->msi_iova += size;
@@ -373,16 +428,27 @@ static dma_addr_t iommu_dma_alloc_iova(struct iommu_domain *domain,
if (domain->geometry.force_aperture)
dma_limit = min(dma_limit, domain->geometry.aperture_end);
+ /*
+ * Ensure iova is within range specified in iommu_dma_init_domain().
+ * This also prevents unnecessary work iterating through the entire
+ * rb_tree.
+ */
+ limit = min_t(dma_addr_t, DMA_BIT_MASK(32) >> shift,
+ iovad->end_pfn);
+
/* Try to get PCI devices a SAC address */
if (dma_limit > DMA_BIT_MASK(32) && dev_is_pci(dev))
- iova = alloc_iova_fast(iovad, iova_len,
- DMA_BIT_MASK(32) >> shift, false);
+ iova = alloc_iova_fast(iovad, iova_len, limit, false);
- if (!iova)
- iova = alloc_iova_fast(iovad, iova_len, dma_limit >> shift,
- true);
+ if (!iova) {
+ limit = min_t(dma_addr_t, dma_limit >> shift,
+ iovad->end_pfn);
+
+ iova = alloc_iova_fast(iovad, iova_len, limit, true);
+ }
return (dma_addr_t)iova << shift;
+
}
static void iommu_dma_free_iova(struct iommu_dma_cookie *cookie,
@@ -453,8 +519,9 @@ static struct page **__iommu_dma_alloc_pages(unsigned int count,
unsigned int order = __fls(order_mask);
order_size = 1U << order;
- page = alloc_pages((order_mask - order_size) ?
- gfp | __GFP_NORETRY : gfp, order);
+ page = alloc_pages(order ?
+ (gfp | __GFP_NORETRY) &
+ ~__GFP_RECLAIM : gfp, order);
if (!page)
continue;
if (!order)
@@ -648,7 +715,7 @@ void iommu_dma_unmap_page(struct device *dev, dma_addr_t handle, size_t size,
* avoid individually crossing any boundaries, so we merely need to check a
* segment's start address to avoid concatenating across one.
*/
-static int __finalise_sg(struct device *dev, struct scatterlist *sg, int nents,
+int iommu_dma_finalise_sg(struct device *dev, struct scatterlist *sg, int nents,
dma_addr_t dma_addr)
{
struct scatterlist *s, *cur = sg;
@@ -701,7 +768,7 @@ static int __finalise_sg(struct device *dev, struct scatterlist *sg, int nents,
* If mapping failed, then just restore the original list,
* but making sure the DMA fields are invalidated.
*/
-static void __invalidate_sg(struct scatterlist *sg, int nents)
+void iommu_dma_invalidate_sg(struct scatterlist *sg, int nents)
{
struct scatterlist *s;
int i;
@@ -723,14 +790,10 @@ static void __invalidate_sg(struct scatterlist *sg, int nents)
* impedance-matching, to be able to hand off a suitably-aligned list,
* but still preserve the original offsets and sizes for the caller.
*/
-int iommu_dma_map_sg(struct device *dev, struct scatterlist *sg,
- int nents, int prot)
+size_t iommu_dma_prepare_map_sg(struct device *dev, struct iova_domain *iovad,
+ struct scatterlist *sg, int nents)
{
- struct iommu_domain *domain = iommu_get_domain_for_dev(dev);
- struct iommu_dma_cookie *cookie = domain->iova_cookie;
- struct iova_domain *iovad = &cookie->iovad;
struct scatterlist *s, *prev = NULL;
- dma_addr_t iova;
size_t iova_len = 0;
unsigned long mask = dma_get_seg_boundary(dev);
int i;
@@ -774,6 +837,26 @@ int iommu_dma_map_sg(struct device *dev, struct scatterlist *sg,
prev = s;
}
+ return iova_len;
+}
+
+int iommu_dma_map_sg(struct device *dev, struct scatterlist *sg,
+ int nents, int prot)
+{
+ struct iommu_domain *domain;
+ struct iommu_dma_cookie *cookie;
+ struct iova_domain *iovad;
+ dma_addr_t iova;
+ size_t iova_len;
+
+ domain = iommu_get_domain_for_dev(dev);
+ if (!domain)
+ return 0;
+ cookie = domain->iova_cookie;
+ iovad = &cookie->iovad;
+
+ iova_len = iommu_dma_prepare_map_sg(dev, iovad, sg, nents);
+
iova = iommu_dma_alloc_iova(domain, iova_len, dma_get_mask(dev), dev);
if (!iova)
goto out_restore_sg;
@@ -785,12 +868,12 @@ int iommu_dma_map_sg(struct device *dev, struct scatterlist *sg,
if (iommu_map_sg(domain, iova, sg, nents, prot) < iova_len)
goto out_free_iova;
- return __finalise_sg(dev, sg, nents, iova);
+ return iommu_dma_finalise_sg(dev, sg, nents, iova);
out_free_iova:
iommu_dma_free_iova(cookie, iova, iova_len);
out_restore_sg:
- __invalidate_sg(sg, nents);
+ iommu_dma_invalidate_sg(sg, nents);
return 0;
}
diff --git a/drivers/iommu/dma-mapping-fast.c b/drivers/iommu/dma-mapping-fast.c
new file mode 100644
index 0000000..c3b5e82
--- /dev/null
+++ b/drivers/iommu/dma-mapping-fast.c
@@ -0,0 +1,1249 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2016-2017, The Linux Foundation. All rights reserved.
+ */
+
+#include <linux/dma-contiguous.h>
+#include <linux/dma-mapping.h>
+#include <linux/dma-mapping-fast.h>
+#include <linux/io-pgtable.h>
+#include <linux/io-pgtable-fast.h>
+#include <linux/vmalloc.h>
+#include <asm/cacheflush.h>
+#include <asm/dma-iommu.h>
+#include <linux/slab.h>
+#include <linux/genalloc.h>
+#include <linux/vmalloc.h>
+#include <linux/pci.h>
+#include <linux/dma-iommu.h>
+#include <linux/iova.h>
+#include <trace/events/iommu.h>
+
+/* some redundant definitions... :( TODO: move to io-pgtable-fast.h */
+#define FAST_PAGE_SHIFT 12
+#define FAST_PAGE_SIZE (1UL << FAST_PAGE_SHIFT)
+#define FAST_PAGE_MASK (~(PAGE_SIZE - 1))
+
+#define DEFAULT_DMA_COHERENT_POOL_SIZE SZ_256K
+static struct gen_pool *atomic_pool __ro_after_init;
+
+static size_t atomic_pool_size __initdata = DEFAULT_DMA_COHERENT_POOL_SIZE;
+
+static int __init early_coherent_pool(char *p)
+{
+ atomic_pool_size = memparse(p, &p);
+ return 0;
+}
+early_param("coherent_pool", early_coherent_pool);
+
+static pgprot_t __get_dma_pgprot(unsigned long attrs, pgprot_t prot,
+ bool coherent)
+{
+ if (attrs & DMA_ATTR_STRONGLY_ORDERED)
+ return pgprot_noncached(prot);
+ else if (!coherent || (attrs & DMA_ATTR_WRITE_COMBINE))
+ return pgprot_writecombine(prot);
+ return prot;
+}
+
+static void *__alloc_from_pool(size_t size, struct page **ret_page, gfp_t flags)
+{
+ unsigned long val;
+ void *ptr = NULL;
+
+ if (!atomic_pool) {
+ WARN(1, "coherent pool not initialised!\n");
+ return NULL;
+ }
+
+ val = gen_pool_alloc(atomic_pool, size);
+ if (val) {
+ phys_addr_t phys = gen_pool_virt_to_phys(atomic_pool, val);
+
+ *ret_page = phys_to_page(phys);
+ ptr = (void *)val;
+ memset(ptr, 0, size);
+ }
+
+ return ptr;
+}
+
+static phys_addr_t __atomic_get_phys(void *addr)
+{
+ return gen_pool_virt_to_phys(atomic_pool, (unsigned long)addr);
+}
+
+static bool __in_atomic_pool(void *start, size_t size)
+{
+ if (!atomic_pool)
+ return false;
+ return addr_in_gen_pool(atomic_pool, (unsigned long)start, size);
+}
+
+static int __free_from_pool(void *start, size_t size)
+{
+ if (!__in_atomic_pool(start, size))
+ return 0;
+
+ gen_pool_free(atomic_pool, (unsigned long)start, size);
+
+ return 1;
+}
+
+static bool is_dma_coherent(struct device *dev, unsigned long attrs)
+{
+ bool is_coherent;
+
+ if (attrs & DMA_ATTR_FORCE_COHERENT)
+ is_coherent = true;
+ else if (attrs & DMA_ATTR_FORCE_NON_COHERENT)
+ is_coherent = false;
+ else if (is_device_dma_coherent(dev))
+ is_coherent = true;
+ else
+ is_coherent = false;
+
+ return is_coherent;
+}
+
+static struct dma_fast_smmu_mapping *dev_get_mapping(struct device *dev)
+{
+ struct iommu_domain *domain;
+
+ domain = iommu_get_domain_for_dev(dev);
+ if (!domain)
+ return ERR_PTR(-EINVAL);
+ return domain->iova_cookie;
+}
+
+/*
+ * Checks if the allocated range (ending at @end) covered the upcoming
+ * stale bit. We don't need to know exactly where the range starts since
+ * we already know where the candidate search range started. If, starting
+ * from the beginning of the candidate search range, we had to step over
+ * (or landed directly on top of) the upcoming stale bit, then we return
+ * true.
+ *
+ * Due to wrapping, there are two scenarios we'll need to check: (1) if the
+ * range [search_start, upcoming_stale] spans 0 (i.e. search_start >
+ * upcoming_stale), and, (2) if the range: [search_start, upcoming_stale]
+ * does *not* span 0 (i.e. search_start <= upcoming_stale). And for each
+ * of those two scenarios we need to handle three cases: (1) the bit was
+ * found before wrapping or
+ */
+static bool __bit_covered_stale(unsigned long upcoming_stale,
+ unsigned long search_start,
+ unsigned long end)
+{
+ if (search_start > upcoming_stale) {
+ if (end >= search_start) {
+ /*
+ * We started searching above upcoming_stale and we
+ * didn't wrap, so we couldn't have crossed
+ * upcoming_stale.
+ */
+ return false;
+ }
+ /*
+ * We wrapped. Did we cross (or land on top of)
+ * upcoming_stale?
+ */
+ return end >= upcoming_stale;
+ }
+
+ if (search_start <= upcoming_stale) {
+ if (end >= search_start) {
+ /*
+ * We didn't wrap. Did we cross (or land on top
+ * of) upcoming_stale?
+ */
+ return end >= upcoming_stale;
+ }
+ /*
+ * We wrapped. So we must have crossed upcoming_stale
+ * (since we started searching below it).
+ */
+ return true;
+ }
+
+ /* we should have covered all logical combinations... */
+ WARN_ON(1);
+ return true;
+}
+
+static dma_addr_t __fast_smmu_alloc_iova(struct dma_fast_smmu_mapping *mapping,
+ unsigned long attrs,
+ size_t size)
+{
+ unsigned long bit, prev_search_start, nbits = size >> FAST_PAGE_SHIFT;
+ unsigned long align = (1 << get_order(size)) - 1;
+
+ bit = bitmap_find_next_zero_area(
+ mapping->bitmap, mapping->num_4k_pages, mapping->next_start,
+ nbits, align);
+ if (unlikely(bit > mapping->num_4k_pages)) {
+ /* try wrapping */
+ bit = bitmap_find_next_zero_area(
+ mapping->bitmap, mapping->num_4k_pages, 0, nbits,
+ align);
+ if (unlikely(bit > mapping->num_4k_pages))
+ return DMA_ERROR_CODE;
+ }
+
+ bitmap_set(mapping->bitmap, bit, nbits);
+ prev_search_start = mapping->next_start;
+ mapping->next_start = bit + nbits;
+ if (unlikely(mapping->next_start >= mapping->num_4k_pages))
+ mapping->next_start = 0;
+
+ /*
+ * If we just re-allocated a VA whose TLB hasn't been invalidated
+ * since it was last used and unmapped, we need to invalidate it
+ * here. We actually invalidate the entire TLB so that we don't
+ * have to invalidate the TLB again until we wrap back around.
+ */
+ if (mapping->have_stale_tlbs &&
+ __bit_covered_stale(mapping->upcoming_stale_bit,
+ prev_search_start,
+ bit + nbits - 1)) {
+ bool skip_sync = (attrs & DMA_ATTR_SKIP_CPU_SYNC);
+
+ iommu_tlbiall(mapping->domain);
+ mapping->have_stale_tlbs = false;
+ av8l_fast_clear_stale_ptes(mapping->pgtbl_ops,
+ mapping->domain->geometry.aperture_start,
+ mapping->base,
+ mapping->base + mapping->size - 1,
+ skip_sync);
+ }
+
+ return (bit << FAST_PAGE_SHIFT) + mapping->base;
+}
+
+/*
+ * Checks whether the candidate bit will be allocated sooner than the
+ * current upcoming stale bit. We can say candidate will be upcoming
+ * sooner than the current upcoming stale bit if it lies between the
+ * starting bit of the next search range and the upcoming stale bit
+ * (allowing for wrap-around).
+ *
+ * Stated differently, we're checking the relative ordering of three
+ * unsigned numbers. So we need to check all 6 (i.e. 3!) permutations,
+ * namely:
+ *
+ * 0 |---A---B---C---| TOP (Case 1)
+ * 0 |---A---C---B---| TOP (Case 2)
+ * 0 |---B---A---C---| TOP (Case 3)
+ * 0 |---B---C---A---| TOP (Case 4)
+ * 0 |---C---A---B---| TOP (Case 5)
+ * 0 |---C---B---A---| TOP (Case 6)
+ *
+ * Note that since we're allowing numbers to wrap, the following three
+ * scenarios are all equivalent for Case 1:
+ *
+ * 0 |---A---B---C---| TOP
+ * 0 |---C---A---B---| TOP (C has wrapped. This is Case 5.)
+ * 0 |---B---C---A---| TOP (C and B have wrapped. This is Case 4.)
+ *
+ * In any of these cases, if we start searching from A, we will find B
+ * before we find C.
+ *
+ * We can also find two equivalent cases for Case 2:
+ *
+ * 0 |---A---C---B---| TOP
+ * 0 |---B---A---C---| TOP (B has wrapped. This is Case 3.)
+ * 0 |---C---B---A---| TOP (B and C have wrapped. This is Case 6.)
+ *
+ * In any of these cases, if we start searching from A, we will find C
+ * before we find B.
+ */
+static bool __bit_is_sooner(unsigned long candidate,
+ struct dma_fast_smmu_mapping *mapping)
+{
+ unsigned long A = mapping->next_start;
+ unsigned long B = candidate;
+ unsigned long C = mapping->upcoming_stale_bit;
+
+ if ((A < B && B < C) || /* Case 1 */
+ (C < A && A < B) || /* Case 5 */
+ (B < C && C < A)) /* Case 4 */
+ return true;
+
+ if ((A < C && C < B) || /* Case 2 */
+ (B < A && A < C) || /* Case 3 */
+ (C < B && B < A)) /* Case 6 */
+ return false;
+
+ /*
+ * For simplicity, we've been ignoring the possibility of any of
+ * our three numbers being equal. Handle those cases here (they
+ * shouldn't happen very often, (I think?)).
+ */
+
+ /*
+ * If candidate is the next bit to be searched then it's definitely
+ * sooner.
+ */
+ if (A == B)
+ return true;
+
+ /*
+ * If candidate is the next upcoming stale bit we'll return false
+ * to avoid doing `upcoming = candidate' in the caller (which would
+ * be useless since they're already equal)
+ */
+ if (B == C)
+ return false;
+
+ /*
+ * If next start is the upcoming stale bit then candidate can't
+ * possibly be sooner. The "soonest" bit is already selected.
+ */
+ if (A == C)
+ return false;
+
+ /* We should have covered all logical combinations. */
+ WARN(1, "Well, that's awkward. A=%ld, B=%ld, C=%ld\n", A, B, C);
+ return true;
+}
+
+#ifdef CONFIG_ARM64
+static int __init atomic_pool_init(void)
+{
+ pgprot_t prot = __pgprot(PROT_NORMAL_NC);
+ unsigned long nr_pages = atomic_pool_size >> PAGE_SHIFT;
+ struct page *page;
+ void *addr;
+ unsigned int pool_size_order = get_order(atomic_pool_size);
+
+ if (dev_get_cma_area(NULL))
+ page = dma_alloc_from_contiguous(NULL, nr_pages,
+ pool_size_order, false);
+ else
+ page = alloc_pages(GFP_DMA32, pool_size_order);
+
+ if (page) {
+ int ret;
+ void *page_addr = page_address(page);
+
+ memset(page_addr, 0, atomic_pool_size);
+ __dma_flush_area(page_addr, atomic_pool_size);
+
+ atomic_pool = gen_pool_create(PAGE_SHIFT, -1);
+ if (!atomic_pool)
+ goto free_page;
+
+ addr = dma_common_contiguous_remap(page, atomic_pool_size,
+ VM_USERMAP, prot, atomic_pool_init);
+
+ if (!addr)
+ goto destroy_genpool;
+
+ ret = gen_pool_add_virt(atomic_pool, (unsigned long)addr,
+ page_to_phys(page),
+ atomic_pool_size, -1);
+ if (ret)
+ goto remove_mapping;
+
+ gen_pool_set_algo(atomic_pool,
+ gen_pool_first_fit_order_align,
+ NULL);
+
+ pr_info("DMA: preallocated %zu KiB pool for atomic allocations\n",
+ atomic_pool_size / 1024);
+ return 0;
+ }
+ goto out;
+
+remove_mapping:
+ dma_common_free_remap(addr, atomic_pool_size, VM_USERMAP, false);
+destroy_genpool:
+ gen_pool_destroy(atomic_pool);
+ atomic_pool = NULL;
+free_page:
+ if (!dma_release_from_contiguous(NULL, page, nr_pages))
+ __free_pages(page, pool_size_order);
+out:
+ pr_err("DMA: failed to allocate %zu KiB pool for atomic coherent allocation\n",
+ atomic_pool_size / 1024);
+ return -ENOMEM;
+}
+arch_initcall(atomic_pool_init);
+#endif
+
+static void __fast_smmu_free_iova(struct dma_fast_smmu_mapping *mapping,
+ dma_addr_t iova, size_t size)
+{
+ unsigned long start_bit = (iova - mapping->base) >> FAST_PAGE_SHIFT;
+ unsigned long nbits = size >> FAST_PAGE_SHIFT;
+
+ /*
+ * We don't invalidate TLBs on unmap. We invalidate TLBs on map
+ * when we're about to re-allocate a VA that was previously
+ * unmapped but hasn't yet been invalidated. So we need to keep
+ * track of which bit is the closest to being re-allocated here.
+ */
+ if (__bit_is_sooner(start_bit, mapping))
+ mapping->upcoming_stale_bit = start_bit;
+
+ bitmap_clear(mapping->bitmap, start_bit, nbits);
+ mapping->have_stale_tlbs = true;
+}
+
+
+static void __fast_dma_page_cpu_to_dev(struct page *page, unsigned long off,
+ size_t size, enum dma_data_direction dir)
+{
+ __dma_map_area(page_address(page) + off, size, dir);
+}
+
+static void __fast_dma_page_dev_to_cpu(struct page *page, unsigned long off,
+ size_t size, enum dma_data_direction dir)
+{
+ __dma_unmap_area(page_address(page) + off, size, dir);
+
+ /* TODO: WHAT IS THIS? */
+ /*
+ * Mark the D-cache clean for this page to avoid extra flushing.
+ */
+ if (dir != DMA_TO_DEVICE && off == 0 && size >= PAGE_SIZE)
+ set_bit(PG_dcache_clean, &page->flags);
+}
+
+static dma_addr_t fast_smmu_map_page(struct device *dev, struct page *page,
+ unsigned long offset, size_t size,
+ enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ struct dma_fast_smmu_mapping *mapping = dev_get_mapping(dev);
+ dma_addr_t iova;
+ unsigned long flags;
+ phys_addr_t phys_plus_off = page_to_phys(page) + offset;
+ phys_addr_t phys_to_map = round_down(phys_plus_off, FAST_PAGE_SIZE);
+ unsigned long offset_from_phys_to_map = phys_plus_off & ~FAST_PAGE_MASK;
+ size_t len = ALIGN(size + offset_from_phys_to_map, FAST_PAGE_SIZE);
+ bool skip_sync = (attrs & DMA_ATTR_SKIP_CPU_SYNC);
+ bool is_coherent = is_dma_coherent(dev, attrs);
+ int prot = dma_info_to_prot(dir, is_coherent, attrs);
+
+ if (!skip_sync && !is_coherent)
+ __fast_dma_page_cpu_to_dev(phys_to_page(phys_to_map),
+ offset_from_phys_to_map, size, dir);
+
+ spin_lock_irqsave(&mapping->lock, flags);
+
+ iova = __fast_smmu_alloc_iova(mapping, attrs, len);
+
+ if (unlikely(iova == DMA_ERROR_CODE))
+ goto fail;
+
+ if (unlikely(av8l_fast_map_public(mapping->pgtbl_ops, iova,
+ phys_to_map, len, prot)))
+ goto fail_free_iova;
+
+ spin_unlock_irqrestore(&mapping->lock, flags);
+
+ trace_map(mapping->domain, iova, phys_to_map, len, prot);
+ return iova + offset_from_phys_to_map;
+
+fail_free_iova:
+ __fast_smmu_free_iova(mapping, iova, size);
+fail:
+ spin_unlock_irqrestore(&mapping->lock, flags);
+ return DMA_ERROR_CODE;
+}
+
+static void fast_smmu_unmap_page(struct device *dev, dma_addr_t iova,
+ size_t size, enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ struct dma_fast_smmu_mapping *mapping = dev_get_mapping(dev);
+ unsigned long flags;
+ unsigned long offset = iova & ~FAST_PAGE_MASK;
+ size_t len = ALIGN(size + offset, FAST_PAGE_SIZE);
+ bool skip_sync = (attrs & DMA_ATTR_SKIP_CPU_SYNC);
+ bool is_coherent = is_dma_coherent(dev, attrs);
+
+ if (!skip_sync && !is_coherent) {
+ phys_addr_t phys;
+
+ phys = av8l_fast_iova_to_phys_public(mapping->pgtbl_ops, iova);
+ WARN_ON(!phys);
+
+ __fast_dma_page_dev_to_cpu(phys_to_page(phys), offset,
+ size, dir);
+ }
+
+ spin_lock_irqsave(&mapping->lock, flags);
+ av8l_fast_unmap_public(mapping->pgtbl_ops, iova, len);
+ __fast_smmu_free_iova(mapping, iova, len);
+ spin_unlock_irqrestore(&mapping->lock, flags);
+
+ trace_unmap(mapping->domain, iova - offset, len, len);
+}
+
+static void fast_smmu_sync_single_for_cpu(struct device *dev,
+ dma_addr_t iova, size_t size, enum dma_data_direction dir)
+{
+ struct dma_fast_smmu_mapping *mapping = dev_get_mapping(dev);
+ unsigned long offset = iova & ~FAST_PAGE_MASK;
+
+ if (!av8l_fast_iova_coherent_public(mapping->pgtbl_ops, iova)) {
+ phys_addr_t phys;
+
+ phys = av8l_fast_iova_to_phys_public(mapping->pgtbl_ops, iova);
+ WARN_ON(!phys);
+
+ __fast_dma_page_dev_to_cpu(phys_to_page(phys), offset,
+ size, dir);
+ }
+}
+
+static void fast_smmu_sync_single_for_device(struct device *dev,
+ dma_addr_t iova, size_t size, enum dma_data_direction dir)
+{
+ struct dma_fast_smmu_mapping *mapping = dev_get_mapping(dev);
+ unsigned long offset = iova & ~FAST_PAGE_MASK;
+
+ if (!av8l_fast_iova_coherent_public(mapping->pgtbl_ops, iova)) {
+ phys_addr_t phys;
+
+ phys = av8l_fast_iova_to_phys_public(mapping->pgtbl_ops, iova);
+ WARN_ON(!phys);
+
+ __fast_dma_page_cpu_to_dev(phys_to_page(phys), offset,
+ size, dir);
+ }
+}
+
+static void fast_smmu_sync_sg_for_cpu(struct device *dev,
+ struct scatterlist *sgl, int nelems,
+ enum dma_data_direction dir)
+{
+ struct scatterlist *sg;
+ dma_addr_t iova = sg_dma_address(sgl);
+ struct dma_fast_smmu_mapping *mapping = dev_get_mapping(dev);
+ int i;
+
+ if (av8l_fast_iova_coherent_public(mapping->pgtbl_ops, iova))
+ return;
+
+ for_each_sg(sgl, sg, nelems, i)
+ __dma_unmap_area(sg_virt(sg), sg->length, dir);
+}
+
+static void fast_smmu_sync_sg_for_device(struct device *dev,
+ struct scatterlist *sgl, int nelems,
+ enum dma_data_direction dir)
+{
+ struct scatterlist *sg;
+ dma_addr_t iova = sg_dma_address(sgl);
+ struct dma_fast_smmu_mapping *mapping = dev_get_mapping(dev);
+ int i;
+
+ if (av8l_fast_iova_coherent_public(mapping->pgtbl_ops, iova))
+ return;
+
+ for_each_sg(sgl, sg, nelems, i)
+ __dma_map_area(sg_virt(sg), sg->length, dir);
+}
+
+static int fast_smmu_map_sg(struct device *dev, struct scatterlist *sg,
+ int nents, enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ struct dma_fast_smmu_mapping *mapping = dev_get_mapping(dev);
+ size_t iova_len;
+ bool is_coherent = is_dma_coherent(dev, attrs);
+ int prot = dma_info_to_prot(dir, is_coherent, attrs);
+ int ret;
+ dma_addr_t iova;
+ unsigned long flags;
+ size_t unused;
+
+ iova_len = iommu_dma_prepare_map_sg(dev, mapping->iovad, sg, nents);
+
+ spin_lock_irqsave(&mapping->lock, flags);
+ iova = __fast_smmu_alloc_iova(mapping, attrs, iova_len);
+ spin_unlock_irqrestore(&mapping->lock, flags);
+
+ if (unlikely(iova == DMA_ERROR_CODE))
+ goto fail;
+
+ av8l_fast_map_sg_public(mapping->pgtbl_ops, iova, sg, nents, prot,
+ &unused);
+
+ ret = iommu_dma_finalise_sg(dev, sg, nents, iova);
+
+ if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
+ fast_smmu_sync_sg_for_device(dev, sg, nents, dir);
+
+ return ret;
+fail:
+ iommu_dma_invalidate_sg(sg, nents);
+ return 0;
+}
+
+static void fast_smmu_unmap_sg(struct device *dev,
+ struct scatterlist *sg, int nelems,
+ enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ struct dma_fast_smmu_mapping *mapping = dev_get_mapping(dev);
+ unsigned long flags;
+ dma_addr_t start;
+ size_t len;
+ struct scatterlist *tmp;
+ int i;
+
+ if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
+ fast_smmu_sync_sg_for_cpu(dev, sg, nelems, dir);
+
+ /*
+ * The scatterlist segments are mapped into a single
+ * contiguous IOVA allocation, so this is incredibly easy.
+ */
+ start = sg_dma_address(sg);
+ for_each_sg(sg_next(sg), tmp, nelems - 1, i) {
+ if (sg_dma_len(tmp) == 0)
+ break;
+ sg = tmp;
+ }
+ len = sg_dma_address(sg) + sg_dma_len(sg) - start;
+
+ av8l_fast_unmap_public(mapping->pgtbl_ops, start, len);
+
+ spin_lock_irqsave(&mapping->lock, flags);
+ __fast_smmu_free_iova(mapping, start, len);
+ spin_unlock_irqrestore(&mapping->lock, flags);
+}
+
+static void __fast_smmu_free_pages(struct page **pages, int count)
+{
+ int i;
+
+ if (!pages)
+ return;
+ for (i = 0; i < count; i++)
+ __free_page(pages[i]);
+ kvfree(pages);
+}
+
+static void *fast_smmu_alloc_atomic(struct dma_fast_smmu_mapping *mapping,
+ size_t size, gfp_t gfp, unsigned long attrs,
+ dma_addr_t *handle, bool coherent)
+{
+ void *addr;
+ unsigned long flags;
+ struct page *page;
+ dma_addr_t dma_addr;
+ int prot = dma_info_to_prot(DMA_BIDIRECTIONAL, coherent, attrs);
+
+ if (coherent) {
+ page = alloc_pages(gfp, get_order(size));
+ addr = page ? page_address(page) : NULL;
+ } else
+ addr = __alloc_from_pool(size, &page, gfp);
+ if (!addr)
+ return NULL;
+
+ spin_lock_irqsave(&mapping->lock, flags);
+ dma_addr = __fast_smmu_alloc_iova(mapping, attrs, size);
+ if (dma_addr == DMA_ERROR_CODE) {
+ dev_err(mapping->dev, "no iova\n");
+ spin_unlock_irqrestore(&mapping->lock, flags);
+ goto out_free_page;
+ }
+ if (unlikely(av8l_fast_map_public(mapping->pgtbl_ops, dma_addr,
+ page_to_phys(page), size, prot))) {
+ dev_err(mapping->dev, "no map public\n");
+ goto out_free_iova;
+ }
+ spin_unlock_irqrestore(&mapping->lock, flags);
+ *handle = dma_addr;
+ return addr;
+
+out_free_iova:
+ __fast_smmu_free_iova(mapping, dma_addr, size);
+ spin_unlock_irqrestore(&mapping->lock, flags);
+out_free_page:
+ coherent ? __free_pages(page, get_order(size)) :
+ __free_from_pool(addr, size);
+ return NULL;
+}
+
+static struct page **__fast_smmu_alloc_pages(unsigned int count, gfp_t gfp)
+{
+ struct page **pages;
+ unsigned int i = 0, array_size = count * sizeof(*pages);
+
+ if (array_size <= PAGE_SIZE)
+ pages = kzalloc(array_size, GFP_KERNEL);
+ else
+ pages = vzalloc(array_size);
+ if (!pages)
+ return NULL;
+
+ /* IOMMU can map any pages, so himem can also be used here */
+ gfp |= __GFP_NOWARN | __GFP_HIGHMEM;
+
+ for (i = 0; i < count; ++i) {
+ struct page *page = alloc_page(gfp);
+
+ if (!page) {
+ __fast_smmu_free_pages(pages, i);
+ return NULL;
+ }
+ pages[i] = page;
+ }
+ return pages;
+}
+
+static void *__fast_smmu_alloc_contiguous(struct device *dev, size_t size,
+ dma_addr_t *handle, gfp_t gfp, unsigned long attrs)
+{
+ struct dma_fast_smmu_mapping *mapping = dev_get_mapping(dev);
+ bool is_coherent = is_dma_coherent(dev, attrs);
+ int prot = dma_info_to_prot(DMA_BIDIRECTIONAL, is_coherent, attrs);
+ pgprot_t remap_prot = __get_dma_pgprot(attrs, PAGE_KERNEL, is_coherent);
+ struct page *page;
+ dma_addr_t iova;
+ unsigned long flags;
+ void *coherent_addr;
+
+ page = dma_alloc_from_contiguous(dev, size >> PAGE_SHIFT,
+ get_order(size), gfp & __GFP_NOWARN);
+ if (!page)
+ return NULL;
+
+
+ spin_lock_irqsave(&mapping->lock, flags);
+ iova = __fast_smmu_alloc_iova(mapping, attrs, size);
+ spin_unlock_irqrestore(&mapping->lock, flags);
+ if (iova == DMA_ERROR_CODE)
+ goto release_page;
+
+ if (av8l_fast_map_public(mapping->pgtbl_ops, iova, page_to_phys(page),
+ size, prot))
+ goto release_iova;
+
+ coherent_addr = dma_common_contiguous_remap(page, size, VM_USERMAP,
+ remap_prot, __fast_smmu_alloc_contiguous);
+ if (!coherent_addr)
+ goto release_mapping;
+
+ if (!is_coherent)
+ __dma_flush_area(page_to_virt(page), size);
+
+ *handle = iova;
+ return coherent_addr;
+
+release_mapping:
+ av8l_fast_unmap_public(mapping->pgtbl_ops, iova, size);
+release_iova:
+ __fast_smmu_free_iova(mapping, iova, size);
+release_page:
+ dma_release_from_contiguous(dev, page, size >> PAGE_SHIFT);
+ return NULL;
+}
+
+static void *fast_smmu_alloc(struct device *dev, size_t size,
+ dma_addr_t *handle, gfp_t gfp,
+ unsigned long attrs)
+{
+ struct dma_fast_smmu_mapping *mapping = dev_get_mapping(dev);
+ struct sg_table sgt;
+ dma_addr_t dma_addr, iova_iter;
+ void *addr;
+ unsigned long flags;
+ struct sg_mapping_iter miter;
+ size_t count = ALIGN(size, SZ_4K) >> PAGE_SHIFT;
+ bool is_coherent = is_dma_coherent(dev, attrs);
+ int prot = dma_info_to_prot(DMA_BIDIRECTIONAL, is_coherent, attrs);
+ pgprot_t remap_prot = __get_dma_pgprot(attrs, PAGE_KERNEL, is_coherent);
+ struct page **pages;
+
+ /*
+ * sg_alloc_table_from_pages accepts unsigned int value for count
+ * so check count doesn't exceed UINT_MAX.
+ */
+
+ if (count > UINT_MAX) {
+ dev_err(dev, "count: %zx exceeds UNIT_MAX\n", count);
+ return NULL;
+ }
+
+ *handle = DMA_ERROR_CODE;
+ size = ALIGN(size, SZ_4K);
+
+ if (atomic_pool && !gfpflags_allow_blocking(gfp))
+ return fast_smmu_alloc_atomic(mapping, size, gfp, attrs, handle,
+ is_coherent);
+ else if (attrs & DMA_ATTR_FORCE_CONTIGUOUS)
+ return __fast_smmu_alloc_contiguous(dev, size, handle, gfp,
+ attrs);
+
+ pages = __fast_smmu_alloc_pages(count, gfp);
+ if (!pages) {
+ dev_err(dev, "no pages\n");
+ return NULL;
+ }
+
+ if (sg_alloc_table_from_pages(&sgt, pages, count, 0, size, gfp)) {
+ dev_err(dev, "no sg tablen\n");
+ goto out_free_pages;
+ }
+
+ if (!is_coherent) {
+ /*
+ * The CPU-centric flushing implied by SG_MITER_TO_SG isn't
+ * sufficient here, so skip it by using the "wrong" direction.
+ */
+ sg_miter_start(&miter, sgt.sgl, sgt.orig_nents,
+ SG_MITER_FROM_SG);
+ while (sg_miter_next(&miter))
+ __dma_flush_area(miter.addr, miter.length);
+ sg_miter_stop(&miter);
+ }
+
+ spin_lock_irqsave(&mapping->lock, flags);
+ dma_addr = __fast_smmu_alloc_iova(mapping, attrs, size);
+ if (dma_addr == DMA_ERROR_CODE) {
+ dev_err(dev, "no iova\n");
+ spin_unlock_irqrestore(&mapping->lock, flags);
+ goto out_free_sg;
+ }
+ iova_iter = dma_addr;
+ sg_miter_start(&miter, sgt.sgl, sgt.orig_nents,
+ SG_MITER_FROM_SG | SG_MITER_ATOMIC);
+ while (sg_miter_next(&miter)) {
+ if (unlikely(av8l_fast_map_public(
+ mapping->pgtbl_ops, iova_iter,
+ page_to_phys(miter.page),
+ miter.length, prot))) {
+ dev_err(dev, "no map public\n");
+ /* TODO: unwind previously successful mappings */
+ goto out_free_iova;
+ }
+ iova_iter += miter.length;
+ }
+ sg_miter_stop(&miter);
+ spin_unlock_irqrestore(&mapping->lock, flags);
+
+ addr = dma_common_pages_remap(pages, size, VM_USERMAP, remap_prot,
+ __builtin_return_address(0));
+ if (!addr) {
+ dev_err(dev, "no common pages\n");
+ goto out_unmap;
+ }
+
+ *handle = dma_addr;
+ sg_free_table(&sgt);
+ return addr;
+
+out_unmap:
+ /* need to take the lock again for page tables and iova */
+ spin_lock_irqsave(&mapping->lock, flags);
+ av8l_fast_unmap_public(mapping->pgtbl_ops, dma_addr, size);
+out_free_iova:
+ __fast_smmu_free_iova(mapping, dma_addr, size);
+ spin_unlock_irqrestore(&mapping->lock, flags);
+out_free_sg:
+ sg_free_table(&sgt);
+out_free_pages:
+ __fast_smmu_free_pages(pages, count);
+ return NULL;
+}
+
+static void fast_smmu_free(struct device *dev, size_t size,
+ void *cpu_addr, dma_addr_t dma_handle,
+ unsigned long attrs)
+{
+ struct dma_fast_smmu_mapping *mapping = dev_get_mapping(dev);
+ struct vm_struct *area;
+ unsigned long flags;
+
+ size = ALIGN(size, FAST_PAGE_SIZE);
+
+ spin_lock_irqsave(&mapping->lock, flags);
+ av8l_fast_unmap_public(mapping->pgtbl_ops, dma_handle, size);
+ __fast_smmu_free_iova(mapping, dma_handle, size);
+ spin_unlock_irqrestore(&mapping->lock, flags);
+
+ area = find_vm_area(cpu_addr);
+ if (area && area->pages) {
+ struct page **pages = area->pages;
+
+ dma_common_free_remap(cpu_addr, size, VM_USERMAP, false);
+ __fast_smmu_free_pages(pages, size >> FAST_PAGE_SHIFT);
+ } else if (attrs & DMA_ATTR_FORCE_CONTIGUOUS) {
+ struct page *page = vmalloc_to_page(cpu_addr);
+
+ dma_common_free_remap(cpu_addr, size, VM_USERMAP, false);
+ dma_release_from_contiguous(dev, page, size >> PAGE_SHIFT);
+ } else if (!is_vmalloc_addr(cpu_addr)) {
+ __free_pages(virt_to_page(cpu_addr), get_order(size));
+ } else if (__in_atomic_pool(cpu_addr, size)) {
+ // Keep remap
+ __free_from_pool(cpu_addr, size);
+ }
+}
+
+/* __swiotlb_mmap_pfn is not currently exported. */
+static int fast_smmu_mmap_pfn(struct vm_area_struct *vma, unsigned long pfn,
+ size_t size)
+{
+ int ret = -ENXIO;
+ unsigned long nr_vma_pages = vma_pages(vma);
+ unsigned long nr_pages = PAGE_ALIGN(size) >> PAGE_SHIFT;
+ unsigned long off = vma->vm_pgoff;
+
+ if (off < nr_pages && nr_vma_pages <= (nr_pages - off)) {
+ ret = remap_pfn_range(vma, vma->vm_start, pfn + off,
+ vma->vm_end - vma->vm_start,
+ vma->vm_page_prot);
+ }
+
+ return ret;
+}
+
+static int fast_smmu_mmap_attrs(struct device *dev, struct vm_area_struct *vma,
+ void *cpu_addr, dma_addr_t dma_addr,
+ size_t size, unsigned long attrs)
+{
+ struct vm_struct *area;
+ bool coherent = is_dma_coherent(dev, attrs);
+ unsigned long pfn = 0;
+
+ vma->vm_page_prot = __get_dma_pgprot(attrs, vma->vm_page_prot,
+ coherent);
+ area = find_vm_area(cpu_addr);
+ if (area && area->pages)
+ return iommu_dma_mmap(area->pages, size, vma);
+ else if (attrs & DMA_ATTR_FORCE_CONTIGUOUS)
+ pfn = vmalloc_to_pfn(cpu_addr);
+ else if (!is_vmalloc_addr(cpu_addr))
+ pfn = page_to_pfn(virt_to_page(cpu_addr));
+ else if (__in_atomic_pool(cpu_addr, size))
+ pfn = __atomic_get_phys(cpu_addr) >> PAGE_SHIFT;
+
+
+ if (pfn)
+ return fast_smmu_mmap_pfn(vma, pfn, size);
+
+ return -EINVAL;
+}
+
+static int fast_smmu_get_sgtable(struct device *dev, struct sg_table *sgt,
+ void *cpu_addr, dma_addr_t dma_addr,
+ size_t size, unsigned long attrs)
+{
+ unsigned int n_pages = PAGE_ALIGN(size) >> PAGE_SHIFT;
+ struct vm_struct *area;
+ struct page *page = NULL;
+ int ret = -ENXIO;
+
+ area = find_vm_area(cpu_addr);
+ if (area && area->pages)
+ return sg_alloc_table_from_pages(sgt, area->pages, n_pages, 0,
+ size, GFP_KERNEL);
+ else if (attrs & DMA_ATTR_FORCE_CONTIGUOUS)
+ page = vmalloc_to_page(cpu_addr);
+ else if (!is_vmalloc_addr(cpu_addr))
+ page = virt_to_page(cpu_addr);
+ else if (__in_atomic_pool(cpu_addr, size))
+ page = phys_to_page(__atomic_get_phys(cpu_addr));
+
+ if (page) {
+ ret = sg_alloc_table(sgt, 1, GFP_KERNEL);
+ if (!ret)
+ sg_set_page(sgt->sgl, page, PAGE_ALIGN(size), 0);
+ }
+
+ return ret;
+}
+
+static dma_addr_t fast_smmu_dma_map_resource(
+ struct device *dev, phys_addr_t phys_addr,
+ size_t size, enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ struct dma_fast_smmu_mapping *mapping = dev_get_mapping(dev);
+ size_t offset = phys_addr & ~FAST_PAGE_MASK;
+ size_t len = round_up(size + offset, FAST_PAGE_SIZE);
+ dma_addr_t dma_addr;
+ int prot;
+ unsigned long flags;
+
+ spin_lock_irqsave(&mapping->lock, flags);
+ dma_addr = __fast_smmu_alloc_iova(mapping, attrs, len);
+ spin_unlock_irqrestore(&mapping->lock, flags);
+
+ if (dma_addr == DMA_ERROR_CODE)
+ return dma_addr;
+
+ prot = dma_info_to_prot(dir, false, attrs);
+ prot |= IOMMU_MMIO;
+
+ if (iommu_map(mapping->domain, dma_addr, phys_addr - offset,
+ len, prot)) {
+ spin_lock_irqsave(&mapping->lock, flags);
+ __fast_smmu_free_iova(mapping, dma_addr, len);
+ spin_unlock_irqrestore(&mapping->lock, flags);
+ return DMA_ERROR_CODE;
+ }
+ return dma_addr + offset;
+}
+
+static void fast_smmu_dma_unmap_resource(
+ struct device *dev, dma_addr_t addr,
+ size_t size, enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ struct dma_fast_smmu_mapping *mapping = dev_get_mapping(dev);
+ size_t offset = addr & ~FAST_PAGE_MASK;
+ size_t len = round_up(size + offset, FAST_PAGE_SIZE);
+ unsigned long flags;
+
+ iommu_unmap(mapping->domain, addr - offset, len);
+ spin_lock_irqsave(&mapping->lock, flags);
+ __fast_smmu_free_iova(mapping, addr, len);
+ spin_unlock_irqrestore(&mapping->lock, flags);
+}
+
+static int fast_smmu_mapping_error(struct device *dev,
+ dma_addr_t dma_addr)
+{
+ return dma_addr == DMA_ERROR_CODE;
+}
+
+static void __fast_smmu_mapped_over_stale(struct dma_fast_smmu_mapping *fast,
+ void *data)
+{
+ av8l_fast_iopte *pmds, *ptep = data;
+ dma_addr_t iova;
+ unsigned long bitmap_idx;
+ struct io_pgtable *tbl;
+
+ tbl = container_of(fast->pgtbl_ops, struct io_pgtable, ops);
+ pmds = tbl->cfg.av8l_fast_cfg.pmds;
+
+ bitmap_idx = (unsigned long)(ptep - pmds);
+ iova = bitmap_idx << FAST_PAGE_SHIFT;
+ dev_err(fast->dev, "Mapped over stale tlb at %pa\n", &iova);
+ dev_err(fast->dev, "bitmap (failure at idx %lu):\n", bitmap_idx);
+ dev_err(fast->dev, "ptep: %p pmds: %p diff: %lu\n", ptep,
+ pmds, bitmap_idx);
+ print_hex_dump(KERN_ERR, "bmap: ", DUMP_PREFIX_ADDRESS,
+ 32, 8, fast->bitmap, fast->bitmap_size, false);
+}
+
+static int fast_smmu_notify(struct notifier_block *self,
+ unsigned long action, void *data)
+{
+ struct dma_fast_smmu_mapping *fast = container_of(
+ self, struct dma_fast_smmu_mapping, notifier);
+
+ switch (action) {
+ case MAPPED_OVER_STALE_TLB:
+ __fast_smmu_mapped_over_stale(fast, data);
+ return NOTIFY_OK;
+ default:
+ WARN(1, "Unhandled notifier action");
+ return NOTIFY_DONE;
+ }
+}
+
+static const struct dma_map_ops fast_smmu_dma_ops = {
+ .alloc = fast_smmu_alloc,
+ .free = fast_smmu_free,
+ .mmap = fast_smmu_mmap_attrs,
+ .get_sgtable = fast_smmu_get_sgtable,
+ .map_page = fast_smmu_map_page,
+ .unmap_page = fast_smmu_unmap_page,
+ .sync_single_for_cpu = fast_smmu_sync_single_for_cpu,
+ .sync_single_for_device = fast_smmu_sync_single_for_device,
+ .map_sg = fast_smmu_map_sg,
+ .unmap_sg = fast_smmu_unmap_sg,
+ .sync_sg_for_cpu = fast_smmu_sync_sg_for_cpu,
+ .sync_sg_for_device = fast_smmu_sync_sg_for_device,
+ .map_resource = fast_smmu_dma_map_resource,
+ .unmap_resource = fast_smmu_dma_unmap_resource,
+ .mapping_error = fast_smmu_mapping_error,
+};
+
+/**
+ * __fast_smmu_create_mapping_sized
+ * @base: bottom of the VA range
+ * @size: size of the VA range in bytes
+ *
+ * Creates a mapping structure which holds information about used/unused IO
+ * address ranges, which is required to perform mapping with IOMMU aware
+ * functions. The only VA range supported is [0, 4GB].
+ *
+ * The client device need to be attached to the mapping with
+ * fast_smmu_attach_device function.
+ */
+static struct dma_fast_smmu_mapping *__fast_smmu_create_mapping_sized(
+ dma_addr_t base, u64 size)
+{
+ struct dma_fast_smmu_mapping *fast;
+
+ fast = kzalloc(sizeof(struct dma_fast_smmu_mapping), GFP_KERNEL);
+ if (!fast)
+ goto err;
+
+ fast->base = base;
+ fast->size = size;
+ fast->num_4k_pages = size >> FAST_PAGE_SHIFT;
+ fast->bitmap_size = BITS_TO_LONGS(fast->num_4k_pages) * sizeof(long);
+
+ fast->bitmap = kzalloc(fast->bitmap_size, GFP_KERNEL | __GFP_NOWARN |
+ __GFP_NORETRY);
+ if (!fast->bitmap)
+ fast->bitmap = vzalloc(fast->bitmap_size);
+
+ if (!fast->bitmap)
+ goto err2;
+
+ spin_lock_init(&fast->lock);
+
+ fast->iovad = kzalloc(sizeof(*fast->iovad), GFP_KERNEL);
+ if (!fast->iovad)
+ goto err_free_bitmap;
+ init_iova_domain(fast->iovad, FAST_PAGE_SIZE,
+ base >> FAST_PAGE_SHIFT);
+
+ return fast;
+
+err_free_bitmap:
+ kvfree(fast->bitmap);
+err2:
+ kfree(fast);
+err:
+ return ERR_PTR(-ENOMEM);
+}
+
+/*
+ * Based off of similar code from dma-iommu.c, but modified to use a different
+ * iova allocator
+ */
+static void fast_smmu_reserve_pci_windows(struct device *dev,
+ struct dma_fast_smmu_mapping *mapping)
+{
+ struct pci_host_bridge *bridge;
+ struct resource_entry *window;
+ phys_addr_t start, end;
+ struct pci_dev *pci_dev;
+ unsigned long flags;
+
+ if (!dev_is_pci(dev))
+ return;
+
+ pci_dev = to_pci_dev(dev);
+ bridge = pci_find_host_bridge(pci_dev->bus);
+
+ spin_lock_irqsave(&mapping->lock, flags);
+ resource_list_for_each_entry(window, &bridge->windows) {
+ if (resource_type(window->res) != IORESOURCE_MEM &&
+ resource_type(window->res) != IORESOURCE_IO)
+ continue;
+
+ start = round_down(window->res->start - window->offset,
+ FAST_PAGE_SIZE);
+ end = round_up(window->res->end - window->offset,
+ FAST_PAGE_SIZE);
+ start = max_t(unsigned long, mapping->base, start);
+ end = min_t(unsigned long, mapping->base + mapping->size, end);
+ if (start >= end)
+ continue;
+
+ dev_dbg(dev, "iova allocator reserved 0x%pa-0x%pa\n",
+ &start, &end);
+
+ start = (start - mapping->base) >> FAST_PAGE_SHIFT;
+ end = (end - mapping->base) >> FAST_PAGE_SHIFT;
+ bitmap_set(mapping->bitmap, start, end - start);
+ }
+ spin_unlock_irqrestore(&mapping->lock, flags);
+}
+
+void fast_smmu_put_dma_cookie(struct iommu_domain *domain)
+{
+ struct dma_fast_smmu_mapping *fast = domain->iova_cookie;
+
+ if (!fast)
+ return;
+
+ if (fast->iovad) {
+ put_iova_domain(fast->iovad);
+ kfree(fast->iovad);
+ }
+
+ if (fast->bitmap)
+ kvfree(fast->bitmap);
+
+ kfree(fast);
+ domain->iova_cookie = NULL;
+}
+EXPORT_SYMBOL_GPL(fast_smmu_put_dma_cookie);
+
+/**
+ * fast_smmu_init_mapping
+ * @dev: valid struct device pointer
+ * @mapping: io address space mapping structure (returned from
+ * arm_iommu_create_mapping)
+ *
+ * Called the first time a device is attached to this mapping.
+ * Not for dma client use.
+ */
+int fast_smmu_init_mapping(struct device *dev,
+ struct dma_iommu_mapping *mapping)
+{
+ int err = 0;
+ struct iommu_domain *domain = mapping->domain;
+ struct iommu_pgtbl_info info;
+ u64 size = (u64)mapping->bits << PAGE_SHIFT;
+ struct dma_fast_smmu_mapping *fast;
+
+ if (domain->iova_cookie) {
+ fast = domain->iova_cookie;
+ goto finish;
+ }
+
+ if (mapping->base + size > (SZ_1G * 4ULL)) {
+ dev_err(dev, "Iova end address too large\n");
+ return -EINVAL;
+ }
+
+ fast = __fast_smmu_create_mapping_sized(mapping->base, size);
+ if (IS_ERR(fast))
+ return -ENOMEM;
+
+ fast->domain = domain;
+ fast->dev = dev;
+ domain->iova_cookie = fast;
+
+ domain->geometry.aperture_start = mapping->base;
+ domain->geometry.aperture_end = mapping->base + size - 1;
+
+ if (iommu_domain_get_attr(domain, DOMAIN_ATTR_PGTBL_INFO,
+ &info)) {
+ dev_err(dev, "Couldn't get page table info\n");
+ err = -EINVAL;
+ goto release_mapping;
+ }
+ fast->pgtbl_ops = (struct io_pgtable_ops *)info.ops;
+
+ fast->notifier.notifier_call = fast_smmu_notify;
+ av8l_register_notify(&fast->notifier);
+
+finish:
+ fast_smmu_reserve_pci_windows(dev, fast);
+ mapping->ops = &fast_smmu_dma_ops;
+ return 0;
+
+release_mapping:
+ fast_smmu_put_dma_cookie(domain);
+ return err;
+}
diff --git a/drivers/iommu/io-pgtable-arm-v7s.c b/drivers/iommu/io-pgtable-arm-v7s.c
index 48d4709..6a69864 100644
--- a/drivers/iommu/io-pgtable-arm-v7s.c
+++ b/drivers/iommu/io-pgtable-arm-v7s.c
@@ -35,6 +35,7 @@
#include <linux/atomic.h>
#include <linux/dma-mapping.h>
#include <linux/gfp.h>
+#include <linux/io-pgtable.h>
#include <linux/iommu.h>
#include <linux/kernel.h>
#include <linux/kmemleak.h>
@@ -45,8 +46,6 @@
#include <asm/barrier.h>
-#include "io-pgtable.h"
-
/* Struct accessors */
#define io_pgtable_to_data(x) \
container_of((x), struct arm_v7s_io_pgtable, iop)
diff --git a/drivers/iommu/io-pgtable-arm.c b/drivers/iommu/io-pgtable-arm.c
index 2f79efd..7e6b345 100644
--- a/drivers/iommu/io-pgtable-arm.c
+++ b/drivers/iommu/io-pgtable-arm.c
@@ -21,9 +21,10 @@
#define pr_fmt(fmt) "arm-lpae io-pgtable: " fmt
#include <linux/atomic.h>
-#include <linux/bitops.h>
+#include <linux/io-pgtable.h>
#include <linux/iommu.h>
#include <linux/kernel.h>
+#include <linux/scatterlist.h>
#include <linux/sizes.h>
#include <linux/slab.h>
#include <linux/types.h>
@@ -31,9 +32,7 @@
#include <asm/barrier.h>
-#include "io-pgtable.h"
-
-#define ARM_LPAE_MAX_ADDR_BITS 52
+#define ARM_LPAE_MAX_ADDR_BITS 48
#define ARM_LPAE_S2_MAX_CONCAT_PAGES 16
#define ARM_LPAE_MAX_LEVELS 4
@@ -70,6 +69,9 @@
#define ARM_LPAE_PGD_IDX(l,d) \
((l) == ARM_LPAE_START_LVL(d) ? ilog2(ARM_LPAE_PAGES_PER_PGD(d)) : 0)
+#define ARM_LPAE_LVL_MASK(l, d) \
+ ((l) == ARM_LPAE_START_LVL(d) ? (1 << (d)->pgd_bits) - 1 : \
+ (1 << (d)->bits_per_level) - 1)
#define ARM_LPAE_LVL_IDX(a,l,d) \
(((u64)(a) >> ARM_LPAE_LVL_SHIFT(l,d)) & \
((1 << ((d)->bits_per_level + ARM_LPAE_PGD_IDX(l,d))) - 1))
@@ -87,8 +89,7 @@
#define ARM_LPAE_PTE_TYPE_TABLE 3
#define ARM_LPAE_PTE_TYPE_PAGE 3
-#define ARM_LPAE_PTE_ADDR_MASK GENMASK_ULL(47,12)
-
+#define ARM_LPAE_PTE_SH_MASK (((arm_lpae_iopte)0x3) << 8)
#define ARM_LPAE_PTE_NSTABLE (((arm_lpae_iopte)1) << 63)
#define ARM_LPAE_PTE_XN (((arm_lpae_iopte)3) << 53)
#define ARM_LPAE_PTE_AF (((arm_lpae_iopte)1) << 10)
@@ -107,8 +108,11 @@
#define ARM_LPAE_PTE_SW_SYNC (((arm_lpae_iopte)1) << 55)
/* Stage-1 PTE */
+#define ARM_LPAE_PTE_AP_PRIV_RW (((arm_lpae_iopte)0) << 6)
#define ARM_LPAE_PTE_AP_UNPRIV (((arm_lpae_iopte)1) << 6)
-#define ARM_LPAE_PTE_AP_RDONLY (((arm_lpae_iopte)2) << 6)
+#define ARM_LPAE_PTE_AP_PRIV_RO (((arm_lpae_iopte)2) << 6)
+#define ARM_LPAE_PTE_AP_RO (((arm_lpae_iopte)3) << 6)
+#define ARM_LPAE_PTE_ATTRINDX_MASK 0x7
#define ARM_LPAE_PTE_ATTRINDX_SHIFT 2
#define ARM_LPAE_PTE_nG (((arm_lpae_iopte)1) << 11)
@@ -162,19 +166,25 @@
#define ARM_LPAE_TCR_PS_42_BIT 0x3ULL
#define ARM_LPAE_TCR_PS_44_BIT 0x4ULL
#define ARM_LPAE_TCR_PS_48_BIT 0x5ULL
-#define ARM_LPAE_TCR_PS_52_BIT 0x6ULL
#define ARM_LPAE_MAIR_ATTR_SHIFT(n) ((n) << 3)
+#define ARM_LPAE_MAIR1_ATTR_SHIFT(n) ((n-4) << 3)
#define ARM_LPAE_MAIR_ATTR_MASK 0xff
#define ARM_LPAE_MAIR_ATTR_DEVICE 0x04
#define ARM_LPAE_MAIR_ATTR_NC 0x44
#define ARM_LPAE_MAIR_ATTR_WBRWA 0xff
+#define ARM_LPAE_MAIR_ATTR_UPSTREAM 0xf4
+#define ARM_LPAE_MAIR_ATTR_LLC_NWA 0xe4
#define ARM_LPAE_MAIR_ATTR_IDX_NC 0
#define ARM_LPAE_MAIR_ATTR_IDX_CACHE 1
#define ARM_LPAE_MAIR_ATTR_IDX_DEV 2
+#define ARM_LPAE_MAIR_ATTR_IDX_UPSTREAM 3
+#define ARM_LPAE_MAIR_ATTR_IDX_LLC_NWA 0x4ULL
/* IOPTE accessors */
-#define iopte_deref(pte,d) __va(iopte_to_paddr(pte, d))
+#define iopte_deref(pte, d) \
+ (__va(iopte_val(pte) & ((1ULL << ARM_LPAE_MAX_ADDR_BITS) - 1) \
+ & ~(ARM_LPAE_GRANULE(d) - 1ULL)))
#define iopte_type(pte,l) \
(((pte) >> ARM_LPAE_PTE_TYPE_SHIFT) & ARM_LPAE_PTE_TYPE_MASK)
@@ -186,38 +196,95 @@
(iopte_type(pte,l) == ARM_LPAE_PTE_TYPE_PAGE) : \
(iopte_type(pte,l) == ARM_LPAE_PTE_TYPE_BLOCK))
+#define iopte_to_pfn(pte, d) \
+ (((pte) & ((1ULL << ARM_LPAE_MAX_ADDR_BITS) - 1)) >> (d)->pg_shift)
+
+#define pfn_to_iopte(pfn, d) \
+ (((pfn) << (d)->pg_shift) & ((1ULL << ARM_LPAE_MAX_ADDR_BITS) - 1))
+
struct arm_lpae_io_pgtable {
struct io_pgtable iop;
int levels;
+ unsigned int pgd_bits;
size_t pgd_size;
unsigned long pg_shift;
unsigned long bits_per_level;
void *pgd;
+ void *pgd_ttbr1;
};
typedef u64 arm_lpae_iopte;
-static arm_lpae_iopte paddr_to_iopte(phys_addr_t paddr,
- struct arm_lpae_io_pgtable *data)
-{
- arm_lpae_iopte pte = paddr;
+/*
+ * We'll use some ignored bits in table entries to keep track of the number
+ * of page mappings beneath the table. The maximum number of entries
+ * beneath any table mapping in armv8 is 8192 (which is possible at the
+ * 2nd- and 3rd-level when using a 64K granule size). The bits at our
+ * disposal are:
+ *
+ * 4k granule: [54..52], [11..2]
+ * 64k granule: [54..52], [15..2]
+ *
+ * [54..52], [11..2] is enough bits for tracking table mappings at any
+ * level for any granule, so we'll use those.
+ */
+#define BOTTOM_IGNORED_MASK 0x3ff
+#define BOTTOM_IGNORED_SHIFT 2
+#define BOTTOM_IGNORED_NUM_BITS 10
+#define TOP_IGNORED_MASK 0x7ULL
+#define TOP_IGNORED_SHIFT 52
+#define IOPTE_RESERVED_MASK ((BOTTOM_IGNORED_MASK << BOTTOM_IGNORED_SHIFT) | \
+ (TOP_IGNORED_MASK << TOP_IGNORED_SHIFT))
- /* Of the bits which overlap, either 51:48 or 15:12 are always RES0 */
- return (pte | (pte >> (48 - 12))) & ARM_LPAE_PTE_ADDR_MASK;
+static arm_lpae_iopte iopte_val(arm_lpae_iopte table_pte)
+{
+ return table_pte & ~IOPTE_RESERVED_MASK;
}
-static phys_addr_t iopte_to_paddr(arm_lpae_iopte pte,
- struct arm_lpae_io_pgtable *data)
+static arm_lpae_iopte _iopte_bottom_ignored_val(arm_lpae_iopte table_pte)
{
- u64 paddr = pte & ARM_LPAE_PTE_ADDR_MASK;
+ return (table_pte & (BOTTOM_IGNORED_MASK << BOTTOM_IGNORED_SHIFT))
+ >> BOTTOM_IGNORED_SHIFT;
+}
- if (data->pg_shift < 16)
- return paddr;
+static arm_lpae_iopte _iopte_top_ignored_val(arm_lpae_iopte table_pte)
+{
+ return (table_pte & (TOP_IGNORED_MASK << TOP_IGNORED_SHIFT))
+ >> TOP_IGNORED_SHIFT;
+}
- /* Rotate the packed high-order bits back to the top */
- return (paddr | (paddr << (48 - 12))) & (ARM_LPAE_PTE_ADDR_MASK << 4);
+static int iopte_tblcnt(arm_lpae_iopte table_pte)
+{
+ return (_iopte_bottom_ignored_val(table_pte) |
+ (_iopte_top_ignored_val(table_pte) << BOTTOM_IGNORED_NUM_BITS));
+}
+
+static void iopte_tblcnt_set(arm_lpae_iopte *table_pte, int val)
+{
+ arm_lpae_iopte pte = iopte_val(*table_pte);
+
+ pte |= ((val & BOTTOM_IGNORED_MASK) << BOTTOM_IGNORED_SHIFT) |
+ (((val & (TOP_IGNORED_MASK << BOTTOM_IGNORED_NUM_BITS))
+ >> BOTTOM_IGNORED_NUM_BITS) << TOP_IGNORED_SHIFT);
+ *table_pte = pte;
+}
+
+static void iopte_tblcnt_sub(arm_lpae_iopte *table_ptep, int cnt)
+{
+ arm_lpae_iopte current_cnt = iopte_tblcnt(*table_ptep);
+
+ current_cnt -= cnt;
+ iopte_tblcnt_set(table_ptep, current_cnt);
+}
+
+static void iopte_tblcnt_add(arm_lpae_iopte *table_ptep, int cnt)
+{
+ arm_lpae_iopte current_cnt = iopte_tblcnt(*table_ptep);
+
+ current_cnt += cnt;
+ iopte_tblcnt_set(table_ptep, current_cnt);
}
static bool selftest_running = false;
@@ -227,22 +294,27 @@ static dma_addr_t __arm_lpae_dma_addr(void *pages)
return (dma_addr_t)virt_to_phys(pages);
}
+static inline void pgtable_dma_sync_single_for_device(
+ struct io_pgtable_cfg *cfg,
+ dma_addr_t addr, size_t size,
+ enum dma_data_direction dir)
+{
+ if (!(cfg->quirks & IO_PGTABLE_QUIRK_NO_DMA))
+ dma_sync_single_for_device(cfg->iommu_dev, addr, size,
+ dir);
+}
+
static void *__arm_lpae_alloc_pages(size_t size, gfp_t gfp,
- struct io_pgtable_cfg *cfg)
+ struct io_pgtable_cfg *cfg, void *cookie)
{
struct device *dev = cfg->iommu_dev;
- int order = get_order(size);
- struct page *p;
dma_addr_t dma;
- void *pages;
+ void *pages = io_pgtable_alloc_pages_exact(cfg, cookie, size,
+ gfp | __GFP_ZERO);
- VM_BUG_ON((gfp & __GFP_HIGHMEM));
- p = alloc_pages_node(dev ? dev_to_node(dev) : NUMA_NO_NODE,
- gfp | __GFP_ZERO, order);
- if (!p)
+ if (!pages)
return NULL;
- pages = page_address(p);
if (!(cfg->quirks & IO_PGTABLE_QUIRK_NO_DMA)) {
dma = dma_map_single(dev, pages, size, DMA_TO_DEVICE);
if (dma_mapping_error(dev, dma))
@@ -262,23 +334,23 @@ static void *__arm_lpae_alloc_pages(size_t size, gfp_t gfp,
dev_err(dev, "Cannot accommodate DMA translation for IOMMU page tables\n");
dma_unmap_single(dev, dma, size, DMA_TO_DEVICE);
out_free:
- __free_pages(p, order);
+ io_pgtable_free_pages_exact(cfg, cookie, pages, size);
return NULL;
}
static void __arm_lpae_free_pages(void *pages, size_t size,
- struct io_pgtable_cfg *cfg)
+ struct io_pgtable_cfg *cfg, void *cookie)
{
if (!(cfg->quirks & IO_PGTABLE_QUIRK_NO_DMA))
dma_unmap_single(cfg->iommu_dev, __arm_lpae_dma_addr(pages),
size, DMA_TO_DEVICE);
- free_pages((unsigned long)pages, get_order(size));
+ io_pgtable_free_pages_exact(cfg, cookie, pages, size);
}
static void __arm_lpae_sync_pte(arm_lpae_iopte *ptep,
struct io_pgtable_cfg *cfg)
{
- dma_sync_single_for_device(cfg->iommu_dev, __arm_lpae_dma_addr(ptep),
+ pgtable_dma_sync_single_for_device(cfg, __arm_lpae_dma_addr(ptep),
sizeof(*ptep), DMA_TO_DEVICE);
}
@@ -295,9 +367,11 @@ static size_t __arm_lpae_unmap(struct arm_lpae_io_pgtable *data,
unsigned long iova, size_t size, int lvl,
arm_lpae_iopte *ptep);
+
static void __arm_lpae_init_pte(struct arm_lpae_io_pgtable *data,
phys_addr_t paddr, arm_lpae_iopte prot,
- int lvl, arm_lpae_iopte *ptep)
+ int lvl, arm_lpae_iopte *ptep,
+ bool flush)
{
arm_lpae_iopte pte = prot;
@@ -309,50 +383,48 @@ static void __arm_lpae_init_pte(struct arm_lpae_io_pgtable *data,
else
pte |= ARM_LPAE_PTE_TYPE_BLOCK;
- pte |= ARM_LPAE_PTE_AF | ARM_LPAE_PTE_SH_IS;
- pte |= paddr_to_iopte(paddr, data);
+ pte |= ARM_LPAE_PTE_AF | ARM_LPAE_PTE_SH_OS;
+ pte |= pfn_to_iopte(paddr >> data->pg_shift, data);
- __arm_lpae_set_pte(ptep, pte, &data->iop.cfg);
+ if (flush)
+ __arm_lpae_set_pte(ptep, pte, &data->iop.cfg);
+ else
+ *ptep = pte;
}
static int arm_lpae_init_pte(struct arm_lpae_io_pgtable *data,
unsigned long iova, phys_addr_t paddr,
arm_lpae_iopte prot, int lvl,
- arm_lpae_iopte *ptep)
+ arm_lpae_iopte *ptep, arm_lpae_iopte *prev_ptep,
+ bool flush)
{
arm_lpae_iopte pte = *ptep;
- if (iopte_leaf(pte, lvl)) {
- /* We require an unmap first */
- WARN_ON(!selftest_running);
+ /* We require an unmap first */
+ if (pte & ARM_LPAE_PTE_VALID) {
+ WARN_RATELIMIT(1, "map without unmap\n");
return -EEXIST;
- } else if (iopte_type(pte, lvl) == ARM_LPAE_PTE_TYPE_TABLE) {
- /*
- * We need to unmap and free the old table before
- * overwriting it with a block entry.
- */
- arm_lpae_iopte *tblp;
- size_t sz = ARM_LPAE_BLOCK_SIZE(lvl, data);
-
- tblp = ptep - ARM_LPAE_LVL_IDX(iova, lvl, data);
- if (WARN_ON(__arm_lpae_unmap(data, iova, sz, lvl, tblp) != sz))
- return -EINVAL;
}
- __arm_lpae_init_pte(data, paddr, prot, lvl, ptep);
+ __arm_lpae_init_pte(data, paddr, prot, lvl, ptep, flush);
+
+ if (prev_ptep)
+ iopte_tblcnt_add(prev_ptep, 1);
return 0;
}
static arm_lpae_iopte arm_lpae_install_table(arm_lpae_iopte *table,
arm_lpae_iopte *ptep,
arm_lpae_iopte curr,
- struct io_pgtable_cfg *cfg)
+ struct io_pgtable_cfg *cfg,
+ int ref_count)
{
arm_lpae_iopte old, new;
new = __pa(table) | ARM_LPAE_PTE_TYPE_TABLE;
if (cfg->quirks & IO_PGTABLE_QUIRK_ARM_NS)
new |= ARM_LPAE_PTE_NSTABLE;
+ iopte_tblcnt_set(&new, ref_count);
/*
* Ensure the table itself is visible before its PTE can be.
@@ -375,21 +447,69 @@ static arm_lpae_iopte arm_lpae_install_table(arm_lpae_iopte *table,
return old;
}
+struct map_state {
+ unsigned long iova_end;
+ unsigned int pgsize;
+ arm_lpae_iopte *pgtable;
+ arm_lpae_iopte *prev_pgtable;
+ arm_lpae_iopte *pte_start;
+ unsigned int num_pte;
+};
+/* map state optimization works at level 3 (the 2nd-to-last level) */
+#define MAP_STATE_LVL 3
+
static int __arm_lpae_map(struct arm_lpae_io_pgtable *data, unsigned long iova,
phys_addr_t paddr, size_t size, arm_lpae_iopte prot,
- int lvl, arm_lpae_iopte *ptep)
+ int lvl, arm_lpae_iopte *ptep,
+ arm_lpae_iopte *prev_ptep, struct map_state *ms)
{
arm_lpae_iopte *cptep, pte;
size_t block_size = ARM_LPAE_BLOCK_SIZE(lvl, data);
size_t tblsz = ARM_LPAE_GRANULE(data);
struct io_pgtable_cfg *cfg = &data->iop.cfg;
+ void *cookie = data->iop.cookie;
+ arm_lpae_iopte *pgtable = ptep;
/* Find our entry at the current level */
ptep += ARM_LPAE_LVL_IDX(iova, lvl, data);
/* If we can install a leaf entry at this level, then do so */
- if (size == block_size && (size & cfg->pgsize_bitmap))
- return arm_lpae_init_pte(data, iova, paddr, prot, lvl, ptep);
+ if (size == block_size && (size & cfg->pgsize_bitmap)) {
+ if (!ms)
+ return arm_lpae_init_pte(data, iova, paddr, prot, lvl,
+ ptep, prev_ptep, true);
+
+ if (lvl == MAP_STATE_LVL) {
+ if (ms->pgtable)
+ pgtable_dma_sync_single_for_device(cfg,
+ __arm_lpae_dma_addr(ms->pte_start),
+ ms->num_pte * sizeof(*ptep),
+ DMA_TO_DEVICE);
+
+ ms->iova_end = round_down(iova, SZ_2M) + SZ_2M;
+ ms->pgtable = pgtable;
+ ms->prev_pgtable = prev_ptep;
+ ms->pgsize = size;
+ ms->pte_start = ptep;
+ ms->num_pte = 1;
+ } else {
+ /*
+ * We have some map state from previous page
+ * mappings, but we're about to set up a block
+ * mapping. Flush out the previous page mappings.
+ */
+ if (ms->pgtable)
+ pgtable_dma_sync_single_for_device(cfg,
+ __arm_lpae_dma_addr(ms->pte_start),
+ ms->num_pte * sizeof(*ptep),
+ DMA_TO_DEVICE);
+ memset(ms, 0, sizeof(*ms));
+ ms = NULL;
+ }
+
+ return arm_lpae_init_pte(data, iova, paddr, prot, lvl,
+ ptep, prev_ptep, ms == NULL);
+ }
/* We can't allocate tables at the final level */
if (WARN_ON(lvl >= ARM_LPAE_MAX_LEVELS - 1))
@@ -398,13 +518,14 @@ static int __arm_lpae_map(struct arm_lpae_io_pgtable *data, unsigned long iova,
/* Grab a pointer to the next level */
pte = READ_ONCE(*ptep);
if (!pte) {
- cptep = __arm_lpae_alloc_pages(tblsz, GFP_ATOMIC, cfg);
+ cptep = __arm_lpae_alloc_pages(tblsz, GFP_ATOMIC, cfg, cookie);
if (!cptep)
return -ENOMEM;
- pte = arm_lpae_install_table(cptep, ptep, 0, cfg);
+ pte = arm_lpae_install_table(cptep, ptep, 0, cfg, 0);
if (pte)
- __arm_lpae_free_pages(cptep, tblsz, cfg);
+ __arm_lpae_free_pages(cptep, tblsz, cfg, cookie);
+
} else if (!(cfg->quirks & IO_PGTABLE_QUIRK_NO_DMA) &&
!(pte & ARM_LPAE_PTE_SW_SYNC)) {
__arm_lpae_sync_pte(ptep, cfg);
@@ -419,7 +540,8 @@ static int __arm_lpae_map(struct arm_lpae_io_pgtable *data, unsigned long iova,
}
/* Rinse, repeat */
- return __arm_lpae_map(data, iova, paddr, size, prot, lvl + 1, cptep);
+ return __arm_lpae_map(data, iova, paddr, size, prot, lvl + 1, cptep,
+ ptep, ms);
}
static arm_lpae_iopte arm_lpae_prot_to_pte(struct arm_lpae_io_pgtable *data,
@@ -431,8 +553,12 @@ static arm_lpae_iopte arm_lpae_prot_to_pte(struct arm_lpae_io_pgtable *data,
data->iop.fmt == ARM_32_LPAE_S1) {
pte = ARM_LPAE_PTE_nG;
- if (!(prot & IOMMU_WRITE) && (prot & IOMMU_READ))
- pte |= ARM_LPAE_PTE_AP_RDONLY;
+ if (prot & IOMMU_WRITE)
+ pte |= (prot & IOMMU_PRIV) ? ARM_LPAE_PTE_AP_PRIV_RW
+ : ARM_LPAE_PTE_AP_UNPRIV;
+ else
+ pte |= (prot & IOMMU_PRIV) ? ARM_LPAE_PTE_AP_PRIV_RO
+ : ARM_LPAE_PTE_AP_RO;
if (!(prot & IOMMU_PRIV))
pte |= ARM_LPAE_PTE_AP_UNPRIV;
@@ -443,6 +569,12 @@ static arm_lpae_iopte arm_lpae_prot_to_pte(struct arm_lpae_io_pgtable *data,
else if (prot & IOMMU_CACHE)
pte |= (ARM_LPAE_MAIR_ATTR_IDX_CACHE
<< ARM_LPAE_PTE_ATTRINDX_SHIFT);
+ else if (prot & IOMMU_USE_UPSTREAM_HINT)
+ pte |= (ARM_LPAE_MAIR_ATTR_IDX_UPSTREAM
+ << ARM_LPAE_PTE_ATTRINDX_SHIFT);
+ else if (prot & IOMMU_USE_LLC_NWA)
+ pte |= (ARM_LPAE_MAIR_ATTR_IDX_LLC_NWA
+ << ARM_LPAE_PTE_ATTRINDX_SHIFT);
} else {
pte = ARM_LPAE_PTE_HAP_FAULT;
if (prot & IOMMU_READ)
@@ -480,7 +612,8 @@ static int arm_lpae_map(struct io_pgtable_ops *ops, unsigned long iova,
return -ERANGE;
prot = arm_lpae_prot_to_pte(data, iommu_prot);
- ret = __arm_lpae_map(data, iova, paddr, size, prot, lvl, ptep);
+ ret = __arm_lpae_map(data, iova, paddr, size, prot, lvl, ptep, NULL,
+ NULL);
/*
* Synchronise all PTE updates for the new mapping before there's
* a chance for anything to kick off a table walk for the new iova.
@@ -490,11 +623,97 @@ static int arm_lpae_map(struct io_pgtable_ops *ops, unsigned long iova,
return ret;
}
+static int arm_lpae_map_sg(struct io_pgtable_ops *ops, unsigned long iova,
+ struct scatterlist *sg, unsigned int nents,
+ int iommu_prot, size_t *size)
+{
+ struct arm_lpae_io_pgtable *data = io_pgtable_ops_to_data(ops);
+ arm_lpae_iopte *ptep = data->pgd;
+ int lvl = ARM_LPAE_START_LVL(data);
+ arm_lpae_iopte prot;
+ struct scatterlist *s;
+ size_t mapped = 0;
+ int i;
+ int ret = -EINVAL;
+ unsigned int min_pagesz;
+ struct io_pgtable_cfg *cfg = &data->iop.cfg;
+ struct map_state ms;
+
+ /* If no access, then nothing to do */
+ if (!(iommu_prot & (IOMMU_READ | IOMMU_WRITE)))
+ goto out_err;
+
+ prot = arm_lpae_prot_to_pte(data, iommu_prot);
+
+ min_pagesz = 1 << __ffs(cfg->pgsize_bitmap);
+
+ memset(&ms, 0, sizeof(ms));
+
+ for_each_sg(sg, s, nents, i) {
+ phys_addr_t phys = page_to_phys(sg_page(s)) + s->offset;
+ size_t size = s->length;
+
+ /*
+ * We are mapping on IOMMU page boundaries, so offset within
+ * the page must be 0. However, the IOMMU may support pages
+ * smaller than PAGE_SIZE, so s->offset may still represent
+ * an offset of that boundary within the CPU page.
+ */
+ if (!IS_ALIGNED(s->offset, min_pagesz))
+ goto out_err;
+
+ while (size) {
+ size_t pgsize = iommu_pgsize(
+ cfg->pgsize_bitmap, iova | phys, size);
+
+ if (ms.pgtable && (iova < ms.iova_end)) {
+ arm_lpae_iopte *ptep = ms.pgtable +
+ ARM_LPAE_LVL_IDX(iova, MAP_STATE_LVL,
+ data);
+ arm_lpae_init_pte(
+ data, iova, phys, prot, MAP_STATE_LVL,
+ ptep, ms.prev_pgtable, false);
+ ms.num_pte++;
+ } else {
+ ret = __arm_lpae_map(data, iova, phys, pgsize,
+ prot, lvl, ptep, NULL, &ms);
+ if (ret)
+ goto out_err;
+ }
+
+ iova += pgsize;
+ mapped += pgsize;
+ phys += pgsize;
+ size -= pgsize;
+ }
+ }
+
+ if (ms.pgtable)
+ pgtable_dma_sync_single_for_device(cfg,
+ __arm_lpae_dma_addr(ms.pte_start),
+ ms.num_pte * sizeof(*ms.pte_start),
+ DMA_TO_DEVICE);
+
+ /*
+ * Synchronise all PTE updates for the new mapping before there's
+ * a chance for anything to kick off a table walk for the new iova.
+ */
+ wmb();
+
+ return mapped;
+
+out_err:
+ /* Return the size of the partial mapping so that they can be undone */
+ *size = mapped;
+ return ret;
+}
+
static void __arm_lpae_free_pgtable(struct arm_lpae_io_pgtable *data, int lvl,
arm_lpae_iopte *ptep)
{
arm_lpae_iopte *start, *end;
unsigned long table_size;
+ void *cookie = data->iop.cookie;
if (lvl == ARM_LPAE_START_LVL(data))
table_size = data->pgd_size;
@@ -518,7 +737,7 @@ static void __arm_lpae_free_pgtable(struct arm_lpae_io_pgtable *data, int lvl,
__arm_lpae_free_pgtable(data, lvl + 1, iopte_deref(pte, data));
}
- __arm_lpae_free_pages(start, table_size, &data->iop.cfg);
+ __arm_lpae_free_pages(start, table_size, &data->iop.cfg, cookie);
}
static void arm_lpae_free_pgtable(struct io_pgtable *iop)
@@ -526,6 +745,8 @@ static void arm_lpae_free_pgtable(struct io_pgtable *iop)
struct arm_lpae_io_pgtable *data = io_pgtable_to_data(iop);
__arm_lpae_free_pgtable(data, ARM_LPAE_START_LVL(data), data->pgd);
+ __arm_lpae_free_pgtable(data, ARM_LPAE_START_LVL(data),
+ data->pgd_ttbr1);
kfree(data);
}
@@ -540,18 +761,22 @@ static size_t arm_lpae_split_blk_unmap(struct arm_lpae_io_pgtable *data,
size_t tablesz = ARM_LPAE_GRANULE(data);
size_t split_sz = ARM_LPAE_BLOCK_SIZE(lvl, data);
int i, unmap_idx = -1;
+ void *cookie = data->iop.cookie;
+ int child_cnt = 0;
+
+ size = iommu_pgsize(data->iop.cfg.pgsize_bitmap, iova, size);
if (WARN_ON(lvl == ARM_LPAE_MAX_LEVELS))
return 0;
- tablep = __arm_lpae_alloc_pages(tablesz, GFP_ATOMIC, cfg);
+ tablep = __arm_lpae_alloc_pages(tablesz, GFP_ATOMIC, cfg, cookie);
if (!tablep)
return 0; /* Bytes unmapped */
if (size == split_sz)
unmap_idx = ARM_LPAE_LVL_IDX(iova, lvl, data);
- blk_paddr = iopte_to_paddr(blk_pte, data);
+ blk_paddr = iopte_to_pfn(blk_pte, data) << data->pg_shift;
pte = iopte_prot(blk_pte);
for (i = 0; i < tablesz / sizeof(pte); i++, blk_paddr += split_sz) {
@@ -559,12 +784,14 @@ static size_t arm_lpae_split_blk_unmap(struct arm_lpae_io_pgtable *data,
if (i == unmap_idx)
continue;
- __arm_lpae_init_pte(data, blk_paddr, pte, lvl, &tablep[i]);
+ __arm_lpae_init_pte(data, blk_paddr, pte, lvl, &tablep[i],
+ true);
+ child_cnt++;
}
- pte = arm_lpae_install_table(tablep, ptep, blk_pte, cfg);
+ pte = arm_lpae_install_table(tablep, ptep, blk_pte, cfg, child_cnt);
if (pte != blk_pte) {
- __arm_lpae_free_pages(tablep, tablesz, cfg);
+ __arm_lpae_free_pages(tablep, tablesz, cfg, cookie);
/*
* We may race against someone unmapping another part of this
* block, but anything else is invalid. We can't misinterpret
@@ -604,16 +831,44 @@ static size_t __arm_lpae_unmap(struct arm_lpae_io_pgtable *data,
if (!iopte_leaf(pte, lvl)) {
/* Also flush any partial walks */
- io_pgtable_tlb_add_flush(iop, iova, size,
- ARM_LPAE_GRANULE(data), false);
- io_pgtable_tlb_sync(iop);
ptep = iopte_deref(pte, data);
__arm_lpae_free_pgtable(data, lvl + 1, ptep);
- } else {
- io_pgtable_tlb_add_flush(iop, iova, size, size, true);
}
return size;
+ } else if ((lvl == ARM_LPAE_MAX_LEVELS - 2) && !iopte_leaf(pte, lvl)) {
+ arm_lpae_iopte *table = iopte_deref(pte, data);
+ arm_lpae_iopte *table_base = table;
+ int tl_offset = ARM_LPAE_LVL_IDX(iova, lvl + 1, data);
+ int entry_size = ARM_LPAE_GRANULE(data);
+ int max_entries = ARM_LPAE_BLOCK_SIZE(lvl, data) >>
+ data->pg_shift;
+ int entries = min_t(int, size / entry_size,
+ max_entries - tl_offset);
+ int table_len = entries * sizeof(*table);
+
+ /*
+ * This isn't a block mapping so it must be a table mapping
+ * and since it's the 2nd-to-last level the next level has
+ * to be all page mappings. Zero them all out in one fell
+ * swoop.
+ */
+
+ table += tl_offset;
+
+ memset(table, 0, table_len);
+ pgtable_dma_sync_single_for_device(&iop->cfg,
+ __arm_lpae_dma_addr(table),
+ table_len, DMA_TO_DEVICE);
+
+ iopte_tblcnt_sub(ptep, entries);
+ if (!iopte_tblcnt(*ptep)) {
+ /* no valid mappings left under this table. free it. */
+ __arm_lpae_set_pte(ptep, 0, &iop->cfg);
+ __arm_lpae_free_pgtable(data, lvl + 1, table_base);
+ }
+
+ return entries * entry_size;
} else if (iopte_leaf(pte, lvl)) {
/*
* Insert a table at the next level to map the old region,
@@ -629,8 +884,9 @@ static size_t __arm_lpae_unmap(struct arm_lpae_io_pgtable *data,
}
static size_t arm_lpae_unmap(struct io_pgtable_ops *ops, unsigned long iova,
- size_t size)
+ size_t size)
{
+ size_t unmapped = 0;
struct arm_lpae_io_pgtable *data = io_pgtable_ops_to_data(ops);
arm_lpae_iopte *ptep = data->pgd;
int lvl = ARM_LPAE_START_LVL(data);
@@ -638,49 +894,133 @@ static size_t arm_lpae_unmap(struct io_pgtable_ops *ops, unsigned long iova,
if (WARN_ON(iova >= (1ULL << data->iop.cfg.ias)))
return 0;
- return __arm_lpae_unmap(data, iova, size, lvl, ptep);
+ while (unmapped < size) {
+ size_t ret, size_to_unmap, remaining;
+
+ remaining = (size - unmapped);
+ size_to_unmap = iommu_pgsize(data->iop.cfg.pgsize_bitmap, iova,
+ remaining);
+ size_to_unmap = size_to_unmap >= SZ_2M ?
+ size_to_unmap :
+ min_t(unsigned long, remaining,
+ (ALIGN(iova + 1, SZ_2M) - iova));
+ ret = __arm_lpae_unmap(data, iova, size_to_unmap, lvl, ptep);
+ if (ret == 0)
+ break;
+ unmapped += ret;
+ iova += ret;
+ }
+
+ if (unmapped)
+ io_pgtable_tlb_flush_all(&data->iop);
+
+ return unmapped;
+}
+
+static int arm_lpae_iova_to_pte(struct arm_lpae_io_pgtable *data,
+ unsigned long iova, int *plvl_ret,
+ arm_lpae_iopte *ptep_ret)
+{
+ arm_lpae_iopte pte, *ptep = data->pgd;
+ *plvl_ret = ARM_LPAE_START_LVL(data);
+ *ptep_ret = 0;
+
+ do {
+ /* Valid IOPTE pointer? */
+ if (!ptep)
+ return -EINVAL;
+
+ /* Grab the IOPTE we're interested in */
+ pte = *(ptep + ARM_LPAE_LVL_IDX(iova, *plvl_ret, data));
+
+ /* Valid entry? */
+ if (!pte)
+ return -EINVAL;
+
+ /* Leaf entry? */
+ if (iopte_leaf(pte, *plvl_ret))
+ goto found_translation;
+
+ /* Take it to the next level */
+ ptep = iopte_deref(pte, data);
+ } while (++(*plvl_ret) < ARM_LPAE_MAX_LEVELS);
+
+ /* Ran out of page tables to walk */
+ return -EINVAL;
+
+found_translation:
+ *ptep_ret = pte;
+ return 0;
+}
+
+static uint64_t arm_lpae_iova_get_pte(struct io_pgtable_ops *ops,
+ unsigned long iova)
+{
+ struct arm_lpae_io_pgtable *data = io_pgtable_ops_to_data(ops);
+ arm_lpae_iopte pte;
+ int lvl;
+
+ if (!arm_lpae_iova_to_pte(data, iova, &lvl, &pte))
+ return pte;
+
+ return 0;
}
static phys_addr_t arm_lpae_iova_to_phys(struct io_pgtable_ops *ops,
unsigned long iova)
{
struct arm_lpae_io_pgtable *data = io_pgtable_ops_to_data(ops);
- arm_lpae_iopte pte, *ptep = data->pgd;
- int lvl = ARM_LPAE_START_LVL(data);
+ arm_lpae_iopte pte;
+ int lvl;
+ phys_addr_t phys = 0;
- do {
- /* Valid IOPTE pointer? */
- if (!ptep)
- return 0;
+ if (!arm_lpae_iova_to_pte(data, iova, &lvl, &pte)) {
+ iova &= ((1 << ARM_LPAE_LVL_SHIFT(lvl, data)) - 1);
+ phys = ((phys_addr_t)iopte_to_pfn(pte, data)
+ << data->pg_shift) | iova;
+ }
- /* Grab the IOPTE we're interested in */
- ptep += ARM_LPAE_LVL_IDX(iova, lvl, data);
- pte = READ_ONCE(*ptep);
+ return phys;
+}
- /* Valid entry? */
- if (!pte)
- return 0;
+static bool __arm_lpae_is_iova_coherent(struct arm_lpae_io_pgtable *data,
+ arm_lpae_iopte *ptep)
+{
+ if (data->iop.fmt == ARM_64_LPAE_S1 ||
+ data->iop.fmt == ARM_32_LPAE_S1) {
+ int attr_idx = (*ptep & (ARM_LPAE_PTE_ATTRINDX_MASK <<
+ ARM_LPAE_PTE_ATTRINDX_SHIFT)) >>
+ ARM_LPAE_PTE_ATTRINDX_SHIFT;
+ if ((attr_idx == ARM_LPAE_MAIR_ATTR_IDX_CACHE) &&
+ (((*ptep & ARM_LPAE_PTE_SH_MASK) == ARM_LPAE_PTE_SH_IS)
+ ||
+ (*ptep & ARM_LPAE_PTE_SH_MASK) == ARM_LPAE_PTE_SH_OS))
+ return true;
+ } else {
+ if (*ptep & ARM_LPAE_PTE_MEMATTR_OIWB)
+ return true;
+ }
- /* Leaf entry? */
- if (iopte_leaf(pte,lvl))
- goto found_translation;
+ return false;
+}
- /* Take it to the next level */
- ptep = iopte_deref(pte, data);
- } while (++lvl < ARM_LPAE_MAX_LEVELS);
+static bool arm_lpae_is_iova_coherent(struct io_pgtable_ops *ops,
+ unsigned long iova)
+{
+ struct arm_lpae_io_pgtable *data = io_pgtable_ops_to_data(ops);
+ arm_lpae_iopte pte;
+ int lvl;
+ bool ret = false;
- /* Ran out of page tables to walk */
- return 0;
+ if (!arm_lpae_iova_to_pte(data, iova, &lvl, &pte))
+ ret = __arm_lpae_is_iova_coherent(data, &pte);
-found_translation:
- iova &= (ARM_LPAE_BLOCK_SIZE(lvl, data) - 1);
- return iopte_to_paddr(pte, data) | iova;
+ return ret;
}
static void arm_lpae_restrict_pgsizes(struct io_pgtable_cfg *cfg)
{
- unsigned long granule, page_sizes;
- unsigned int max_addr_bits = 48;
+ unsigned long granule;
/*
* We need to restrict the supported page sizes to match the
@@ -700,24 +1040,17 @@ static void arm_lpae_restrict_pgsizes(struct io_pgtable_cfg *cfg)
switch (granule) {
case SZ_4K:
- page_sizes = (SZ_4K | SZ_2M | SZ_1G);
+ cfg->pgsize_bitmap &= (SZ_4K | SZ_2M | SZ_1G);
break;
case SZ_16K:
- page_sizes = (SZ_16K | SZ_32M);
+ cfg->pgsize_bitmap &= (SZ_16K | SZ_32M);
break;
case SZ_64K:
- max_addr_bits = 52;
- page_sizes = (SZ_64K | SZ_512M);
- if (cfg->oas > 48)
- page_sizes |= 1ULL << 42; /* 4TB */
+ cfg->pgsize_bitmap &= (SZ_64K | SZ_512M);
break;
default:
- page_sizes = 0;
+ cfg->pgsize_bitmap = 0;
}
-
- cfg->pgsize_bitmap &= page_sizes;
- cfg->ias = min(cfg->ias, max_addr_bits);
- cfg->oas = min(cfg->oas, max_addr_bits);
}
static struct arm_lpae_io_pgtable *
@@ -754,12 +1087,16 @@ arm_lpae_alloc_pgtable(struct io_pgtable_cfg *cfg)
/* Calculate the actual size of our pgd (without concatenation) */
pgd_bits = va_bits - (data->bits_per_level * (data->levels - 1));
+ data->pgd_bits = pgd_bits;
data->pgd_size = 1UL << (pgd_bits + ilog2(sizeof(arm_lpae_iopte)));
data->iop.ops = (struct io_pgtable_ops) {
.map = arm_lpae_map,
+ .map_sg = arm_lpae_map_sg,
.unmap = arm_lpae_unmap,
.iova_to_phys = arm_lpae_iova_to_phys,
+ .is_iova_coherent = arm_lpae_is_iova_coherent,
+ .iova_to_pte = arm_lpae_iova_get_pte,
};
return data;
@@ -771,7 +1108,11 @@ arm_64_lpae_alloc_pgtable_s1(struct io_pgtable_cfg *cfg, void *cookie)
u64 reg;
struct arm_lpae_io_pgtable *data;
- if (cfg->quirks & ~(IO_PGTABLE_QUIRK_ARM_NS | IO_PGTABLE_QUIRK_NO_DMA))
+ if (cfg->quirks & ~(IO_PGTABLE_QUIRK_ARM_NS
+ | IO_PGTABLE_QUIRK_NO_DMA
+ | IO_PGTABLE_QUIRK_QCOM_USE_UPSTREAM_HINT
+ | IO_PGTABLE_QUIRK_QSMMUV500_NON_SHAREABLE
+ | IO_PGTABLE_QUIRK_QCOM_USE_LLC_NWA))
return NULL;
data = arm_lpae_alloc_pgtable(cfg);
@@ -779,9 +1120,32 @@ arm_64_lpae_alloc_pgtable_s1(struct io_pgtable_cfg *cfg, void *cookie)
return NULL;
/* TCR */
- reg = (ARM_LPAE_TCR_SH_IS << ARM_LPAE_TCR_SH0_SHIFT) |
- (ARM_LPAE_TCR_RGN_WBWA << ARM_LPAE_TCR_IRGN0_SHIFT) |
- (ARM_LPAE_TCR_RGN_WBWA << ARM_LPAE_TCR_ORGN0_SHIFT);
+ if (cfg->quirks & IO_PGTABLE_QUIRK_NO_DMA)
+ reg = (ARM_LPAE_TCR_SH_OS << ARM_LPAE_TCR_SH0_SHIFT) |
+ (ARM_LPAE_TCR_RGN_WBWA << ARM_LPAE_TCR_IRGN0_SHIFT) |
+ (ARM_LPAE_TCR_RGN_WBWA << ARM_LPAE_TCR_ORGN0_SHIFT);
+ else if ((cfg->quirks & IO_PGTABLE_QUIRK_QCOM_USE_UPSTREAM_HINT) &&
+ (cfg->quirks & IO_PGTABLE_QUIRK_QSMMUV500_NON_SHAREABLE))
+ reg = (ARM_LPAE_TCR_SH_NS << ARM_LPAE_TCR_SH0_SHIFT) |
+ (ARM_LPAE_TCR_RGN_NC << ARM_LPAE_TCR_IRGN0_SHIFT) |
+ (ARM_LPAE_TCR_RGN_WBWA << ARM_LPAE_TCR_ORGN0_SHIFT);
+ else if (cfg->quirks & IO_PGTABLE_QUIRK_QCOM_USE_UPSTREAM_HINT)
+ reg = (ARM_LPAE_TCR_SH_OS << ARM_LPAE_TCR_SH0_SHIFT) |
+ (ARM_LPAE_TCR_RGN_NC << ARM_LPAE_TCR_IRGN0_SHIFT) |
+ (ARM_LPAE_TCR_RGN_WBWA << ARM_LPAE_TCR_ORGN0_SHIFT);
+ else if ((cfg->quirks & IO_PGTABLE_QUIRK_QCOM_USE_LLC_NWA) &&
+ (cfg->quirks & IO_PGTABLE_QUIRK_QSMMUV500_NON_SHAREABLE))
+ reg = (ARM_LPAE_TCR_SH_NS << ARM_LPAE_TCR_SH0_SHIFT) |
+ (ARM_LPAE_TCR_RGN_NC << ARM_LPAE_TCR_IRGN0_SHIFT) |
+ (ARM_LPAE_TCR_RGN_WB << ARM_LPAE_TCR_ORGN0_SHIFT);
+ else if (cfg->quirks & IO_PGTABLE_QUIRK_QCOM_USE_LLC_NWA)
+ reg = (ARM_LPAE_TCR_SH_OS << ARM_LPAE_TCR_SH0_SHIFT) |
+ (ARM_LPAE_TCR_RGN_NC << ARM_LPAE_TCR_IRGN0_SHIFT) |
+ (ARM_LPAE_TCR_RGN_WB << ARM_LPAE_TCR_ORGN0_SHIFT);
+ else
+ reg = (ARM_LPAE_TCR_SH_OS << ARM_LPAE_TCR_SH0_SHIFT) |
+ (ARM_LPAE_TCR_RGN_NC << ARM_LPAE_TCR_IRGN0_SHIFT) |
+ (ARM_LPAE_TCR_RGN_NC << ARM_LPAE_TCR_ORGN0_SHIFT);
switch (ARM_LPAE_GRANULE(data)) {
case SZ_4K:
@@ -814,9 +1178,6 @@ arm_64_lpae_alloc_pgtable_s1(struct io_pgtable_cfg *cfg, void *cookie)
case 48:
reg |= (ARM_LPAE_TCR_PS_48_BIT << ARM_LPAE_TCR_IPS_SHIFT);
break;
- case 52:
- reg |= (ARM_LPAE_TCR_PS_52_BIT << ARM_LPAE_TCR_IPS_SHIFT);
- break;
default:
goto out_free_data;
}
@@ -833,24 +1194,39 @@ arm_64_lpae_alloc_pgtable_s1(struct io_pgtable_cfg *cfg, void *cookie)
(ARM_LPAE_MAIR_ATTR_WBRWA
<< ARM_LPAE_MAIR_ATTR_SHIFT(ARM_LPAE_MAIR_ATTR_IDX_CACHE)) |
(ARM_LPAE_MAIR_ATTR_DEVICE
- << ARM_LPAE_MAIR_ATTR_SHIFT(ARM_LPAE_MAIR_ATTR_IDX_DEV));
+ << ARM_LPAE_MAIR_ATTR_SHIFT(ARM_LPAE_MAIR_ATTR_IDX_DEV)) |
+ (ARM_LPAE_MAIR_ATTR_UPSTREAM
+ << ARM_LPAE_MAIR_ATTR_SHIFT(ARM_LPAE_MAIR_ATTR_IDX_UPSTREAM));
cfg->arm_lpae_s1_cfg.mair[0] = reg;
- cfg->arm_lpae_s1_cfg.mair[1] = 0;
+
+ reg = ARM_LPAE_MAIR_ATTR_LLC_NWA
+ << ARM_LPAE_MAIR1_ATTR_SHIFT(ARM_LPAE_MAIR_ATTR_IDX_LLC_NWA);
+
+ cfg->arm_lpae_s1_cfg.mair[1] = reg;
/* Looking good; allocate a pgd */
- data->pgd = __arm_lpae_alloc_pages(data->pgd_size, GFP_KERNEL, cfg);
+ data->pgd = __arm_lpae_alloc_pages(data->pgd_size, GFP_KERNEL,
+ cfg, cookie);
if (!data->pgd)
goto out_free_data;
+ data->pgd_ttbr1 = __arm_lpae_alloc_pages(data->pgd_size, GFP_KERNEL,
+ cfg, cookie);
+ if (!data->pgd_ttbr1)
+ goto out_free_pgd;
+
/* Ensure the empty pgd is visible before any actual TTBR write */
wmb();
/* TTBRs */
cfg->arm_lpae_s1_cfg.ttbr[0] = virt_to_phys(data->pgd);
- cfg->arm_lpae_s1_cfg.ttbr[1] = 0;
+ cfg->arm_lpae_s1_cfg.ttbr[1] = virt_to_phys(data->pgd_ttbr1);
return &data->iop;
+out_free_pgd:
+ __arm_lpae_free_pages(data->pgd, data->pgd_size, cfg, cookie);
+
out_free_data:
kfree(data);
return NULL;
@@ -863,7 +1239,7 @@ arm_64_lpae_alloc_pgtable_s2(struct io_pgtable_cfg *cfg, void *cookie)
struct arm_lpae_io_pgtable *data;
/* The NS quirk doesn't apply at stage 2 */
- if (cfg->quirks & ~IO_PGTABLE_QUIRK_NO_DMA)
+ if (!(cfg->quirks & IO_PGTABLE_QUIRK_ARM_NS))
return NULL;
data = arm_lpae_alloc_pgtable(cfg);
@@ -924,9 +1300,6 @@ arm_64_lpae_alloc_pgtable_s2(struct io_pgtable_cfg *cfg, void *cookie)
case 48:
reg |= (ARM_LPAE_TCR_PS_48_BIT << ARM_LPAE_TCR_PS_SHIFT);
break;
- case 52:
- reg |= (ARM_LPAE_TCR_PS_52_BIT << ARM_LPAE_TCR_PS_SHIFT);
- break;
default:
goto out_free_data;
}
@@ -936,7 +1309,8 @@ arm_64_lpae_alloc_pgtable_s2(struct io_pgtable_cfg *cfg, void *cookie)
cfg->arm_lpae_s2_cfg.vtcr = reg;
/* Allocate pgd pages */
- data->pgd = __arm_lpae_alloc_pages(data->pgd_size, GFP_KERNEL, cfg);
+ data->pgd = __arm_lpae_alloc_pages(data->pgd_size, GFP_KERNEL,
+ cfg, cookie);
if (!data->pgd)
goto out_free_data;
@@ -1019,7 +1393,6 @@ static void dummy_tlb_add_flush(unsigned long iova, size_t size,
size_t granule, bool leaf, void *cookie)
{
WARN_ON(cookie != cfg_cookie);
- WARN_ON(!(size & cfg_cookie->pgsize_bitmap));
}
static void dummy_tlb_sync(void *cookie)
@@ -1052,6 +1425,43 @@ static void __init arm_lpae_dump_ops(struct io_pgtable_ops *ops)
-EFAULT; \
})
+/*
+ * Returns true if there's any mapping in the given iova range in ops.
+ */
+static bool arm_lpae_range_has_mapping(struct io_pgtable_ops *ops,
+ unsigned long iova_start, size_t size)
+{
+ unsigned long iova = iova_start;
+
+ while (iova < (iova_start + size)) {
+ if (ops->iova_to_phys(ops, iova + 42))
+ return true;
+ iova += SZ_4K;
+ }
+ return false;
+}
+
+/*
+ * Returns true if the iova range is successfully mapped to the contiguous
+ * phys range in ops.
+ */
+static bool arm_lpae_range_has_specific_mapping(struct io_pgtable_ops *ops,
+ const unsigned long iova_start,
+ const phys_addr_t phys_start,
+ const size_t size)
+{
+ unsigned long iova = iova_start;
+ phys_addr_t phys = phys_start;
+
+ while (iova < (iova_start + size)) {
+ if (ops->iova_to_phys(ops, iova + 42) != (phys + 42))
+ return false;
+ iova += SZ_4K;
+ phys += SZ_4K;
+ }
+ return true;
+}
+
static int __init arm_lpae_run_tests(struct io_pgtable_cfg *cfg)
{
static const enum io_pgtable_fmt fmts[] = {
@@ -1059,14 +1469,16 @@ static int __init arm_lpae_run_tests(struct io_pgtable_cfg *cfg)
ARM_64_LPAE_S2,
};
- int i, j;
+ int i, j, k;
unsigned long iova;
size_t size;
struct io_pgtable_ops *ops;
-
selftest_running = true;
for (i = 0; i < ARRAY_SIZE(fmts); ++i) {
+ unsigned long test_sg_sizes[] = { SZ_4K, SZ_64K, SZ_2M,
+ SZ_1M * 12, SZ_1M * 20 };
+
cfg_cookie = cfg;
ops = alloc_io_pgtable_ops(fmts[i], cfg, cfg);
if (!ops) {
@@ -1075,16 +1487,11 @@ static int __init arm_lpae_run_tests(struct io_pgtable_cfg *cfg)
}
/*
- * Initial sanity checks.
- * Empty page tables shouldn't provide any translations.
+ * Initial sanity checks. Empty page tables shouldn't
+ * provide any translations. TODO: check entire supported
+ * range for these ops rather than first 2G
*/
- if (ops->iova_to_phys(ops, 42))
- return __FAIL(ops, i);
-
- if (ops->iova_to_phys(ops, SZ_1G + 42))
- return __FAIL(ops, i);
-
- if (ops->iova_to_phys(ops, SZ_2G + 42))
+ if (arm_lpae_range_has_mapping(ops, 0, SZ_2G))
return __FAIL(ops, i);
/*
@@ -1105,7 +1512,8 @@ static int __init arm_lpae_run_tests(struct io_pgtable_cfg *cfg)
IOMMU_READ | IOMMU_NOEXEC))
return __FAIL(ops, i);
- if (ops->iova_to_phys(ops, iova + 42) != (iova + 42))
+ if (!arm_lpae_range_has_specific_mapping(ops, iova,
+ iova, size))
return __FAIL(ops, i);
iova += SZ_1G;
@@ -1116,11 +1524,15 @@ static int __init arm_lpae_run_tests(struct io_pgtable_cfg *cfg)
if (ops->unmap(ops, SZ_1G + size, size) != size)
return __FAIL(ops, i);
+ if (arm_lpae_range_has_mapping(ops, SZ_1G + size, size))
+ return __FAIL(ops, i);
+
/* Remap of partial unmap */
if (ops->map(ops, SZ_1G + size, size, size, IOMMU_READ))
return __FAIL(ops, i);
- if (ops->iova_to_phys(ops, SZ_1G + size + 42) != (size + 42))
+ if (!arm_lpae_range_has_specific_mapping(ops, SZ_1G + size,
+ size, size))
return __FAIL(ops, i);
/* Full unmap */
@@ -1141,9 +1553,105 @@ static int __init arm_lpae_run_tests(struct io_pgtable_cfg *cfg)
if (ops->iova_to_phys(ops, iova + 42) != (iova + 42))
return __FAIL(ops, i);
+ if (ops->unmap(ops, iova, size) != size)
+ return __FAIL(ops, i);
+
iova += SZ_1G;
}
+ if (arm_lpae_range_has_mapping(ops, 0, SZ_2G))
+ return __FAIL(ops, i);
+
+ if ((cfg->pgsize_bitmap & SZ_2M) &&
+ (cfg->pgsize_bitmap & SZ_4K)) {
+ /* mixed block + page mappings */
+ iova = 0;
+ if (ops->map(ops, iova, iova, SZ_2M, IOMMU_READ))
+ return __FAIL(ops, i);
+
+ if (ops->map(ops, iova + SZ_2M, iova + SZ_2M, SZ_4K,
+ IOMMU_READ))
+ return __FAIL(ops, i);
+
+ if (ops->iova_to_phys(ops, iova + 42) != (iova + 42))
+ return __FAIL(ops, i);
+
+ if (ops->iova_to_phys(ops, iova + SZ_2M + 42) !=
+ (iova + SZ_2M + 42))
+ return __FAIL(ops, i);
+
+ /* unmap both mappings at once */
+ if (ops->unmap(ops, iova, SZ_2M + SZ_4K) !=
+ (SZ_2M + SZ_4K))
+ return __FAIL(ops, i);
+
+ if (arm_lpae_range_has_mapping(ops, 0, SZ_2G))
+ return __FAIL(ops, i);
+ }
+
+ /* map_sg */
+ for (j = 0; j < ARRAY_SIZE(test_sg_sizes); ++j) {
+ size_t mapped;
+ size_t unused;
+ struct page *page;
+ phys_addr_t page_phys;
+ struct sg_table table;
+ struct scatterlist *sg;
+ unsigned long total_size = test_sg_sizes[j];
+ int chunk_size = 1UL << find_first_bit(
+ &cfg->pgsize_bitmap, BITS_PER_LONG);
+ int nents = total_size / chunk_size;
+ int ret;
+
+ if (total_size < chunk_size)
+ continue;
+
+ page = alloc_pages(GFP_KERNEL, get_order(chunk_size));
+ if (!page)
+ return -ENOMEM;
+ page_phys = page_to_phys(page);
+
+ iova = 0;
+ ret = sg_alloc_table(&table, nents, GFP_KERNEL);
+ if (ret)
+ return ret;
+ for_each_sg(table.sgl, sg, table.nents, k)
+ sg_set_page(sg, page, chunk_size, 0);
+
+ mapped = ops->map_sg(ops, iova, table.sgl, table.nents,
+ IOMMU_READ | IOMMU_WRITE, &unused);
+
+ if (mapped != total_size)
+ return __FAIL(ops, i);
+
+ if (!arm_lpae_range_has_mapping(ops, iova, total_size))
+ return __FAIL(ops, i);
+
+ if (arm_lpae_range_has_mapping(ops, iova + total_size,
+ SZ_2G - (iova + total_size)))
+ return __FAIL(ops, i);
+
+ for_each_sg(table.sgl, sg, table.nents, k) {
+ dma_addr_t newphys =
+ ops->iova_to_phys(ops, iova + 42);
+ if (newphys != (page_phys + 42))
+ return __FAIL(ops, i);
+ iova += chunk_size;
+ }
+
+ if (ops->unmap(ops, 0, total_size) != total_size)
+ return __FAIL(ops, i);
+
+ if (arm_lpae_range_has_mapping(ops, 0, SZ_2G))
+ return __FAIL(ops, i);
+
+ sg_free_table(&table);
+ __free_pages(page, get_order(chunk_size));
+ }
+
+ if (arm_lpae_range_has_mapping(ops, 0, SZ_2G))
+ return __FAIL(ops, i);
+
free_io_pgtable_ops(ops);
}
@@ -1155,8 +1663,6 @@ static int __init arm_lpae_do_selftests(void)
{
static const unsigned long pgsize[] = {
SZ_4K | SZ_2M | SZ_1G,
- SZ_16K | SZ_32M,
- SZ_64K | SZ_512M,
};
static const unsigned int ias[] = {
diff --git a/drivers/iommu/io-pgtable-fast.c b/drivers/iommu/io-pgtable-fast.c
new file mode 100644
index 0000000..61b86f0
--- /dev/null
+++ b/drivers/iommu/io-pgtable-fast.c
@@ -0,0 +1,816 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2016-2017, The Linux Foundation. All rights reserved.
+ */
+
+#define pr_fmt(fmt) "io-pgtable-fast: " fmt
+
+#include <linux/iommu.h>
+#include <linux/kernel.h>
+#include <linux/io-pgtable.h>
+#include <linux/scatterlist.h>
+#include <linux/sizes.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/io-pgtable-fast.h>
+#include <linux/mm.h>
+#include <asm/cacheflush.h>
+#include <linux/vmalloc.h>
+
+#define AV8L_FAST_MAX_ADDR_BITS 48
+
+/* Struct accessors */
+#define iof_pgtable_to_data(x) \
+ container_of((x), struct av8l_fast_io_pgtable, iop)
+
+#define iof_pgtable_ops_to_pgtable(x) \
+ container_of((x), struct io_pgtable, ops)
+
+#define iof_pgtable_ops_to_data(x) \
+ iof_pgtable_to_data(iof_pgtable_ops_to_pgtable(x))
+
+struct av8l_fast_io_pgtable {
+ struct io_pgtable iop;
+ av8l_fast_iopte *pgd;
+ av8l_fast_iopte *puds[4];
+ av8l_fast_iopte *pmds;
+ struct page **pages; /* page table memory */
+ int nr_pages;
+ dma_addr_t base;
+ dma_addr_t start;
+ dma_addr_t end;
+};
+
+/* Page table bits */
+#define AV8L_FAST_PTE_TYPE_SHIFT 0
+#define AV8L_FAST_PTE_TYPE_MASK 0x3
+
+#define AV8L_FAST_PTE_TYPE_BLOCK 1
+#define AV8L_FAST_PTE_TYPE_TABLE 3
+#define AV8L_FAST_PTE_TYPE_PAGE 3
+
+#define AV8L_FAST_PTE_NSTABLE (((av8l_fast_iopte)1) << 63)
+#define AV8L_FAST_PTE_XN (((av8l_fast_iopte)3) << 53)
+#define AV8L_FAST_PTE_AF (((av8l_fast_iopte)1) << 10)
+#define AV8L_FAST_PTE_SH_NS (((av8l_fast_iopte)0) << 8)
+#define AV8L_FAST_PTE_SH_OS (((av8l_fast_iopte)2) << 8)
+#define AV8L_FAST_PTE_SH_IS (((av8l_fast_iopte)3) << 8)
+#define AV8L_FAST_PTE_SH_MASK (((av8l_fast_iopte)3) << 8)
+#define AV8L_FAST_PTE_NS (((av8l_fast_iopte)1) << 5)
+#define AV8L_FAST_PTE_VALID (((av8l_fast_iopte)1) << 0)
+
+#define AV8L_FAST_PTE_ATTR_LO_MASK (((av8l_fast_iopte)0x3ff) << 2)
+/* Ignore the contiguous bit for block splitting */
+#define AV8L_FAST_PTE_ATTR_HI_MASK (((av8l_fast_iopte)6) << 52)
+#define AV8L_FAST_PTE_ATTR_MASK (AV8L_FAST_PTE_ATTR_LO_MASK | \
+ AV8L_FAST_PTE_ATTR_HI_MASK)
+#define AV8L_FAST_PTE_ADDR_MASK ((av8l_fast_iopte)0xfffffffff000)
+
+
+/* Stage-1 PTE */
+#define AV8L_FAST_PTE_AP_PRIV_RW (((av8l_fast_iopte)0) << 6)
+#define AV8L_FAST_PTE_AP_RW (((av8l_fast_iopte)1) << 6)
+#define AV8L_FAST_PTE_AP_PRIV_RO (((av8l_fast_iopte)2) << 6)
+#define AV8L_FAST_PTE_AP_RO (((av8l_fast_iopte)3) << 6)
+#define AV8L_FAST_PTE_ATTRINDX_SHIFT 2
+#define AV8L_FAST_PTE_ATTRINDX_MASK 0x7
+#define AV8L_FAST_PTE_nG (((av8l_fast_iopte)1) << 11)
+
+/* Stage-2 PTE */
+#define AV8L_FAST_PTE_HAP_FAULT (((av8l_fast_iopte)0) << 6)
+#define AV8L_FAST_PTE_HAP_READ (((av8l_fast_iopte)1) << 6)
+#define AV8L_FAST_PTE_HAP_WRITE (((av8l_fast_iopte)2) << 6)
+#define AV8L_FAST_PTE_MEMATTR_OIWB (((av8l_fast_iopte)0xf) << 2)
+#define AV8L_FAST_PTE_MEMATTR_NC (((av8l_fast_iopte)0x5) << 2)
+#define AV8L_FAST_PTE_MEMATTR_DEV (((av8l_fast_iopte)0x1) << 2)
+
+/* Register bits */
+#define ARM_32_LPAE_TCR_EAE (1 << 31)
+#define ARM_64_LPAE_S2_TCR_RES1 (1 << 31)
+
+#define AV8L_FAST_TCR_TG0_4K (0 << 14)
+#define AV8L_FAST_TCR_TG0_64K (1 << 14)
+#define AV8L_FAST_TCR_TG0_16K (2 << 14)
+
+#define AV8L_FAST_TCR_SH0_SHIFT 12
+#define AV8L_FAST_TCR_SH0_MASK 0x3
+#define AV8L_FAST_TCR_SH_NS 0
+#define AV8L_FAST_TCR_SH_OS 2
+#define AV8L_FAST_TCR_SH_IS 3
+
+#define AV8L_FAST_TCR_ORGN0_SHIFT 10
+#define AV8L_FAST_TCR_IRGN0_SHIFT 8
+#define AV8L_FAST_TCR_RGN_MASK 0x3
+#define AV8L_FAST_TCR_RGN_NC 0
+#define AV8L_FAST_TCR_RGN_WBWA 1
+#define AV8L_FAST_TCR_RGN_WT 2
+#define AV8L_FAST_TCR_RGN_WB 3
+
+#define AV8L_FAST_TCR_SL0_SHIFT 6
+#define AV8L_FAST_TCR_SL0_MASK 0x3
+
+#define AV8L_FAST_TCR_T0SZ_SHIFT 0
+#define AV8L_FAST_TCR_SZ_MASK 0xf
+
+#define AV8L_FAST_TCR_PS_SHIFT 16
+#define AV8L_FAST_TCR_PS_MASK 0x7
+
+#define AV8L_FAST_TCR_IPS_SHIFT 32
+#define AV8L_FAST_TCR_IPS_MASK 0x7
+
+#define AV8L_FAST_TCR_PS_32_BIT 0x0ULL
+#define AV8L_FAST_TCR_PS_36_BIT 0x1ULL
+#define AV8L_FAST_TCR_PS_40_BIT 0x2ULL
+#define AV8L_FAST_TCR_PS_42_BIT 0x3ULL
+#define AV8L_FAST_TCR_PS_44_BIT 0x4ULL
+#define AV8L_FAST_TCR_PS_48_BIT 0x5ULL
+
+#define AV8L_FAST_TCR_EPD1_SHIFT 23
+#define AV8L_FAST_TCR_EPD1_FAULT 1
+
+#define AV8L_FAST_MAIR_ATTR_SHIFT(n) ((n) << 3)
+#define AV8L_FAST_MAIR_ATTR_MASK 0xff
+#define AV8L_FAST_MAIR_ATTR_DEVICE 0x04
+#define AV8L_FAST_MAIR_ATTR_NC 0x44
+#define AV8L_FAST_MAIR_ATTR_WBRWA 0xff
+#define AV8L_FAST_MAIR_ATTR_UPSTREAM 0xf4
+#define AV8L_FAST_MAIR_ATTR_IDX_NC 0
+#define AV8L_FAST_MAIR_ATTR_IDX_CACHE 1
+#define AV8L_FAST_MAIR_ATTR_IDX_DEV 2
+#define AV8L_FAST_MAIR_ATTR_IDX_UPSTREAM 3
+
+#define AV8L_FAST_PAGE_SHIFT 12
+
+#define PTE_MAIR_IDX(pte) \
+ ((pte >> AV8L_FAST_PTE_ATTRINDX_SHIFT) & \
+ AV8L_FAST_PTE_ATTRINDX_MASK)
+
+#define PTE_SH_IDX(pte) (pte & AV8L_FAST_PTE_SH_MASK)
+
+#define iopte_pmd_offset(pmds, base, iova) (pmds + ((iova - base) >> 12))
+
+#ifdef CONFIG_IOMMU_IO_PGTABLE_FAST_PROVE_TLB
+
+#include <asm/cacheflush.h>
+#include <linux/notifier.h>
+
+static ATOMIC_NOTIFIER_HEAD(av8l_notifier_list);
+
+void av8l_register_notify(struct notifier_block *nb)
+{
+ atomic_notifier_chain_register(&av8l_notifier_list, nb);
+}
+EXPORT_SYMBOL(av8l_register_notify);
+
+static void __av8l_check_for_stale_tlb(av8l_fast_iopte *ptep)
+{
+ if (unlikely(*ptep)) {
+ atomic_notifier_call_chain(
+ &av8l_notifier_list, MAPPED_OVER_STALE_TLB,
+ (void *) ptep);
+ pr_err("Tried to map over a non-vacant pte: 0x%llx @ %p\n",
+ *ptep, ptep);
+ pr_err("Nearby memory:\n");
+ print_hex_dump(KERN_ERR, "pgtbl: ", DUMP_PREFIX_ADDRESS,
+ 32, 8, ptep - 16, 32 * sizeof(*ptep), false);
+ }
+}
+
+void av8l_fast_clear_stale_ptes(struct io_pgtable_ops *ops, u64 base,
+ u64 start, u64 end, bool skip_sync)
+{
+ int i;
+ struct av8l_fast_io_pgtable *data = iof_pgtable_ops_to_data(ops);
+ av8l_fast_iopte *pmdp = iopte_pmd_offset(pmds, base, start);
+
+ for (i = start >> AV8L_FAST_PAGE_SHIFT;
+ i <= (end >> AV8L_FAST_PAGE_SHIFT); ++i) {
+ if (!(*pmdp & AV8L_FAST_PTE_VALID)) {
+ *pmdp = 0;
+ if (!skip_sync)
+ dmac_clean_range(pmdp, pmdp + 1);
+ }
+ pmdp++;
+ }
+}
+#else
+static void __av8l_check_for_stale_tlb(av8l_fast_iopte *ptep)
+{
+}
+#endif
+
+static void av8l_clean_range(struct io_pgtable_ops *ops,
+ av8l_fast_iopte *start, av8l_fast_iopte *end)
+{
+ struct io_pgtable *iop = iof_pgtable_ops_to_pgtable(ops);
+
+ if (!(iop->cfg.quirks & IO_PGTABLE_QUIRK_NO_DMA))
+ dmac_clean_range(start, end);
+}
+
+static av8l_fast_iopte
+av8l_fast_prot_to_pte(struct av8l_fast_io_pgtable *data, int prot)
+{
+ av8l_fast_iopte pte = AV8L_FAST_PTE_XN
+ | AV8L_FAST_PTE_TYPE_PAGE
+ | AV8L_FAST_PTE_AF
+ | AV8L_FAST_PTE_nG
+ | AV8L_FAST_PTE_SH_OS;
+
+ if (prot & IOMMU_MMIO)
+ pte |= (AV8L_FAST_MAIR_ATTR_IDX_DEV
+ << AV8L_FAST_PTE_ATTRINDX_SHIFT);
+ else if (prot & IOMMU_CACHE)
+ pte |= (AV8L_FAST_MAIR_ATTR_IDX_CACHE
+ << AV8L_FAST_PTE_ATTRINDX_SHIFT);
+ else if (prot & IOMMU_USE_UPSTREAM_HINT)
+ pte |= (AV8L_FAST_MAIR_ATTR_IDX_UPSTREAM
+ << AV8L_FAST_PTE_ATTRINDX_SHIFT);
+
+ if (!(prot & IOMMU_WRITE))
+ pte |= AV8L_FAST_PTE_AP_RO;
+ else
+ pte |= AV8L_FAST_PTE_AP_RW;
+
+ return pte;
+}
+
+static int av8l_fast_map(struct io_pgtable_ops *ops, unsigned long iova,
+ phys_addr_t paddr, size_t size, int prot)
+{
+ struct av8l_fast_io_pgtable *data = iof_pgtable_ops_to_data(ops);
+ av8l_fast_iopte *ptep = iopte_pmd_offset(data->pmds, data->base, iova);
+ unsigned long i, nptes = size >> AV8L_FAST_PAGE_SHIFT;
+ av8l_fast_iopte pte;
+
+ pte = av8l_fast_prot_to_pte(data, prot);
+ paddr &= AV8L_FAST_PTE_ADDR_MASK;
+ for (i = 0; i < nptes; i++, paddr += SZ_4K) {
+ __av8l_check_for_stale_tlb(ptep + i);
+ *(ptep + i) = pte | paddr;
+ }
+ av8l_clean_range(ops, ptep, ptep + nptes);
+
+ return 0;
+}
+
+int av8l_fast_map_public(struct io_pgtable_ops *ops, unsigned long iova,
+ phys_addr_t paddr, size_t size, int prot)
+{
+ return av8l_fast_map(ops, iova, paddr, size, prot);
+}
+
+static size_t
+__av8l_fast_unmap(struct io_pgtable_ops *ops, unsigned long iova,
+ size_t size, bool allow_stale_tlb)
+{
+ struct av8l_fast_io_pgtable *data = iof_pgtable_ops_to_data(ops);
+ unsigned long nptes;
+ av8l_fast_iopte *ptep;
+ int val = allow_stale_tlb
+ ? AV8L_FAST_PTE_UNMAPPED_NEED_TLBI
+ : 0;
+
+ ptep = iopte_pmd_offset(data->pmds, data->base, iova);
+ nptes = size >> AV8L_FAST_PAGE_SHIFT;
+
+ memset(ptep, val, sizeof(*ptep) * nptes);
+ av8l_clean_range(ops, ptep, ptep + nptes);
+ if (!allow_stale_tlb)
+ io_pgtable_tlb_flush_all(&data->iop);
+
+ return size;
+}
+
+/* caller must take care of tlb cache maintenance */
+void av8l_fast_unmap_public(struct io_pgtable_ops *ops, unsigned long iova,
+ size_t size)
+{
+ __av8l_fast_unmap(ops, iova, size, true);
+}
+
+static size_t av8l_fast_unmap(struct io_pgtable_ops *ops, unsigned long iova,
+ size_t size)
+{
+ return __av8l_fast_unmap(ops, iova, size, false);
+}
+
+static int av8l_fast_map_sg(struct io_pgtable_ops *ops,
+ unsigned long iova, struct scatterlist *sgl,
+ unsigned int nents, int prot, size_t *size)
+{
+ struct scatterlist *sg;
+ int i;
+
+ for_each_sg(sgl, sg, nents, i) {
+ av8l_fast_map(ops, iova, sg_phys(sg), sg->length, prot);
+ iova += sg->length;
+ }
+
+ return nents;
+}
+
+int av8l_fast_map_sg_public(struct io_pgtable_ops *ops,
+ unsigned long iova, struct scatterlist *sgl,
+ unsigned int nents, int prot, size_t *size)
+{
+ return av8l_fast_map_sg(ops, iova, sgl, nents, prot, size);
+}
+
+#if defined(CONFIG_ARM64)
+#define FAST_PGDNDX(va) (((va) & 0x7fc0000000) >> 27)
+#elif defined(CONFIG_ARM)
+#define FAST_PGDNDX(va) (((va) & 0xc0000000) >> 27)
+#endif
+
+static phys_addr_t av8l_fast_iova_to_phys(struct io_pgtable_ops *ops,
+ unsigned long iova)
+{
+ struct av8l_fast_io_pgtable *data = iof_pgtable_ops_to_data(ops);
+ av8l_fast_iopte pte, *pgdp, *pudp, *pmdp;
+ unsigned long pgd;
+ phys_addr_t phys;
+ const unsigned long pts = AV8L_FAST_PTE_TYPE_SHIFT;
+ const unsigned long ptm = AV8L_FAST_PTE_TYPE_MASK;
+ const unsigned long ptt = AV8L_FAST_PTE_TYPE_TABLE;
+ const unsigned long ptp = AV8L_FAST_PTE_TYPE_PAGE;
+ const av8l_fast_iopte am = AV8L_FAST_PTE_ADDR_MASK;
+
+ /* TODO: clean up some of these magic numbers... */
+
+ pgd = (unsigned long)data->pgd | FAST_PGDNDX(iova);
+ pgdp = (av8l_fast_iopte *)pgd;
+
+ pte = *pgdp;
+ if (((pte >> pts) & ptm) != ptt)
+ return 0;
+ pudp = phys_to_virt((pte & am) | ((iova & 0x3fe00000) >> 18));
+
+ pte = *pudp;
+ if (((pte >> pts) & ptm) != ptt)
+ return 0;
+ pmdp = phys_to_virt((pte & am) | ((iova & 0x1ff000) >> 9));
+
+ pte = *pmdp;
+ if (((pte >> pts) & ptm) != ptp)
+ return 0;
+ phys = pte & am;
+
+ return phys | (iova & 0xfff);
+}
+
+phys_addr_t av8l_fast_iova_to_phys_public(struct io_pgtable_ops *ops,
+ unsigned long iova)
+{
+ return av8l_fast_iova_to_phys(ops, iova);
+}
+
+static bool av8l_fast_iova_coherent(struct io_pgtable_ops *ops,
+ unsigned long iova)
+{
+ struct av8l_fast_io_pgtable *data = iof_pgtable_ops_to_data(ops);
+ av8l_fast_iopte *ptep = iopte_pmd_offset(data->pmds, data->base, iova);
+
+ return ((PTE_MAIR_IDX(*ptep) == AV8L_FAST_MAIR_ATTR_IDX_CACHE) &&
+ ((PTE_SH_IDX(*ptep) == AV8L_FAST_PTE_SH_OS) ||
+ (PTE_SH_IDX(*ptep) == AV8L_FAST_PTE_SH_IS)));
+}
+
+bool av8l_fast_iova_coherent_public(struct io_pgtable_ops *ops,
+ unsigned long iova)
+{
+ return av8l_fast_iova_coherent(ops, iova);
+}
+
+static struct av8l_fast_io_pgtable *
+av8l_fast_alloc_pgtable_data(struct io_pgtable_cfg *cfg)
+{
+ struct av8l_fast_io_pgtable *data;
+
+ data = kmalloc(sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return NULL;
+
+ data->iop.ops = (struct io_pgtable_ops) {
+ .map = av8l_fast_map,
+ .map_sg = av8l_fast_map_sg,
+ .unmap = av8l_fast_unmap,
+ .iova_to_phys = av8l_fast_iova_to_phys,
+ .is_iova_coherent = av8l_fast_iova_coherent,
+ };
+
+ return data;
+}
+
+/*
+ * We need max 1 page for the pgd, 4 pages for puds (1GB VA per pud page) and
+ * 2048 pages for pmds (each pud page contains 512 table entries, each
+ * pointing to a pmd).
+ */
+#define NUM_PGD_PAGES 1
+#define NUM_PUD_PAGES 4
+#define NUM_PMD_PAGES 2048
+#define NUM_PGTBL_PAGES (NUM_PGD_PAGES + NUM_PUD_PAGES + NUM_PMD_PAGES)
+
+/* undefine arch specific definitions which depends on page table format */
+#undef pud_index
+#undef pud_mask
+#undef pud_next
+#undef pmd_index
+#undef pmd_mask
+#undef pmd_next
+
+#define pud_index(addr) (((addr) >> 30) & 0x3)
+#define pud_mask(addr) ((addr) & ~((1UL << 30) - 1))
+#define pud_next(addr, end) \
+({ unsigned long __boundary = pud_mask(addr + (1UL << 30));\
+ (__boundary - 1 < (end) - 1) ? __boundary : (end); \
+})
+
+#define pmd_index(addr) (((addr) >> 21) & 0x1ff)
+#define pmd_mask(addr) ((addr) & ~((1UL << 21) - 1))
+#define pmd_next(addr, end) \
+({ unsigned long __boundary = pmd_mask(addr + (1UL << 21));\
+ (__boundary - 1 < (end) - 1) ? __boundary : (end); \
+})
+
+static int
+av8l_fast_prepopulate_pgtables(struct av8l_fast_io_pgtable *data,
+ struct io_pgtable_cfg *cfg, void *cookie)
+{
+ int i, j, pg = 0;
+ struct page **pages, *page;
+ dma_addr_t base = cfg->iova_base;
+ dma_addr_t end = cfg->iova_end;
+ dma_addr_t pud, pmd;
+ int pmd_pg_index;
+
+ pages = kmalloc(sizeof(*pages) * NUM_PGTBL_PAGES, __GFP_NOWARN |
+ __GFP_NORETRY);
+
+ if (!pages)
+ pages = vmalloc(sizeof(*pages) * NUM_PGTBL_PAGES);
+
+ if (!pages)
+ return -ENOMEM;
+
+ page = alloc_page(GFP_KERNEL | __GFP_ZERO);
+ if (!page)
+ goto err_free_pages_arr;
+ pages[pg++] = page;
+ data->pgd = page_address(page);
+
+ /*
+ * We need max 2048 entries at level 2 to map 4GB of VA space. A page
+ * can hold 512 entries, so we need max 4 pages.
+ */
+ for (i = pud_index(base), pud = base; pud < end;
+ ++i, pud = pud_next(pud, end)) {
+ av8l_fast_iopte pte, *ptep;
+
+ page = alloc_page(GFP_KERNEL | __GFP_ZERO);
+ if (!page)
+ goto err_free_pages;
+ pages[pg++] = page;
+ data->puds[i] = page_address(page);
+ pte = page_to_phys(page) | AV8L_FAST_PTE_TYPE_TABLE;
+ ptep = ((av8l_fast_iopte *)data->pgd) + i;
+ *ptep = pte;
+ }
+ dmac_clean_range(data->pgd, data->pgd + 4);
+
+ /*
+ * We have max 4 puds, each of which can point to 512 pmds, so we'll
+ * have max 2048 pmds, each of which can hold 512 ptes, for a grand
+ * total of 2048*512=1048576 PTEs.
+ */
+ pmd_pg_index = pg;
+ for (i = pud_index(base), pud = base; pud < end;
+ ++i, pud = pud_next(pud, end)) {
+ for (j = pmd_index(pud), pmd = pud; pmd < pud_next(pud, end);
+ ++j, pmd = pmd_next(pmd, end)) {
+ av8l_fast_iopte pte, *pudp;
+ void *addr;
+
+ page = alloc_page(GFP_KERNEL | __GFP_ZERO);
+ if (!page)
+ goto err_free_pages;
+ pages[pg++] = page;
+
+ addr = page_address(page);
+ dmac_clean_range(addr, addr + SZ_4K);
+
+ pte = page_to_phys(page) | AV8L_FAST_PTE_TYPE_TABLE;
+ pudp = data->puds[i] + j;
+ *pudp = pte;
+ }
+ dmac_clean_range(data->puds[i], data->puds[i] + 512);
+ }
+
+ /*
+ * We map the pmds into a virtually contiguous space so that we
+ * don't have to traverse the first two levels of the page tables
+ * to find the appropriate pud. Instead, it will be a simple
+ * offset from the virtual base of the pmds.
+ */
+ data->pmds = vmap(&pages[pmd_pg_index], pg - pmd_pg_index,
+ VM_IOREMAP, PAGE_KERNEL);
+ if (!data->pmds)
+ goto err_free_pages;
+
+ data->pages = pages;
+ data->nr_pages = pg;
+ data->base = base;
+ data->end = end;
+ return 0;
+
+err_free_pages:
+ for (i = 0; i < pg; ++i)
+ __free_page(pages[i]);
+err_free_pages_arr:
+ kvfree(pages);
+ return -ENOMEM;
+}
+
+static struct io_pgtable *
+av8l_fast_alloc_pgtable(struct io_pgtable_cfg *cfg, void *cookie)
+{
+ u64 reg;
+ struct av8l_fast_io_pgtable *data =
+ av8l_fast_alloc_pgtable_data(cfg);
+
+ if (!data)
+ return NULL;
+
+ /* restrict according to the fast map requirements */
+ cfg->ias = 32;
+ cfg->pgsize_bitmap = SZ_4K;
+
+ /* TCR */
+ if (cfg->quirks & IO_PGTABLE_QUIRK_QCOM_USE_UPSTREAM_HINT)
+ reg = (AV8L_FAST_TCR_SH_OS << AV8L_FAST_TCR_SH0_SHIFT) |
+ (AV8L_FAST_TCR_RGN_NC << AV8L_FAST_TCR_IRGN0_SHIFT) |
+ (AV8L_FAST_TCR_RGN_WBWA << AV8L_FAST_TCR_ORGN0_SHIFT);
+ else if (cfg->quirks & IO_PGTABLE_QUIRK_NO_DMA)
+ reg = (AV8L_FAST_TCR_SH_OS << AV8L_FAST_TCR_SH0_SHIFT) |
+ (AV8L_FAST_TCR_RGN_WBWA << AV8L_FAST_TCR_IRGN0_SHIFT) |
+ (AV8L_FAST_TCR_RGN_WBWA << AV8L_FAST_TCR_ORGN0_SHIFT);
+ else
+ reg = (AV8L_FAST_TCR_SH_OS << AV8L_FAST_TCR_SH0_SHIFT) |
+ (AV8L_FAST_TCR_RGN_NC << AV8L_FAST_TCR_IRGN0_SHIFT) |
+ (AV8L_FAST_TCR_RGN_NC << AV8L_FAST_TCR_ORGN0_SHIFT);
+
+ reg |= AV8L_FAST_TCR_TG0_4K;
+
+ switch (cfg->oas) {
+ case 32:
+ reg |= (AV8L_FAST_TCR_PS_32_BIT << AV8L_FAST_TCR_IPS_SHIFT);
+ break;
+ case 36:
+ reg |= (AV8L_FAST_TCR_PS_36_BIT << AV8L_FAST_TCR_IPS_SHIFT);
+ break;
+ case 40:
+ reg |= (AV8L_FAST_TCR_PS_40_BIT << AV8L_FAST_TCR_IPS_SHIFT);
+ break;
+ case 42:
+ reg |= (AV8L_FAST_TCR_PS_42_BIT << AV8L_FAST_TCR_IPS_SHIFT);
+ break;
+ case 44:
+ reg |= (AV8L_FAST_TCR_PS_44_BIT << AV8L_FAST_TCR_IPS_SHIFT);
+ break;
+ case 48:
+ reg |= (AV8L_FAST_TCR_PS_48_BIT << AV8L_FAST_TCR_IPS_SHIFT);
+ break;
+ default:
+ goto out_free_data;
+ }
+
+ reg |= (64ULL - cfg->ias) << AV8L_FAST_TCR_T0SZ_SHIFT;
+ reg |= AV8L_FAST_TCR_EPD1_FAULT << AV8L_FAST_TCR_EPD1_SHIFT;
+#if defined(CONFIG_ARM)
+ reg |= ARM_32_LPAE_TCR_EAE;
+#endif
+ cfg->av8l_fast_cfg.tcr = reg;
+
+ /* MAIRs */
+ reg = (AV8L_FAST_MAIR_ATTR_NC
+ << AV8L_FAST_MAIR_ATTR_SHIFT(AV8L_FAST_MAIR_ATTR_IDX_NC)) |
+ (AV8L_FAST_MAIR_ATTR_WBRWA
+ << AV8L_FAST_MAIR_ATTR_SHIFT(AV8L_FAST_MAIR_ATTR_IDX_CACHE)) |
+ (AV8L_FAST_MAIR_ATTR_DEVICE
+ << AV8L_FAST_MAIR_ATTR_SHIFT(AV8L_FAST_MAIR_ATTR_IDX_DEV)) |
+ (AV8L_FAST_MAIR_ATTR_UPSTREAM
+ << AV8L_FAST_MAIR_ATTR_SHIFT(AV8L_FAST_MAIR_ATTR_IDX_UPSTREAM));
+
+ cfg->av8l_fast_cfg.mair[0] = reg;
+ cfg->av8l_fast_cfg.mair[1] = 0;
+
+ /* Allocate all page table memory! */
+ if (av8l_fast_prepopulate_pgtables(data, cfg, cookie))
+ goto out_free_data;
+
+ cfg->av8l_fast_cfg.pmds = data->pmds;
+
+ /* TTBRs */
+ cfg->av8l_fast_cfg.ttbr[0] = virt_to_phys(data->pgd);
+ cfg->av8l_fast_cfg.ttbr[1] = 0;
+ return &data->iop;
+
+out_free_data:
+ kfree(data);
+ return NULL;
+}
+
+static void av8l_fast_free_pgtable(struct io_pgtable *iop)
+{
+ int i;
+ struct av8l_fast_io_pgtable *data = iof_pgtable_to_data(iop);
+
+ vunmap(data->pmds);
+ for (i = 0; i < data->nr_pages; ++i)
+ __free_page(data->pages[i]);
+ kvfree(data->pages);
+ kfree(data);
+}
+
+struct io_pgtable_init_fns io_pgtable_av8l_fast_init_fns = {
+ .alloc = av8l_fast_alloc_pgtable,
+ .free = av8l_fast_free_pgtable,
+};
+
+
+#ifdef CONFIG_IOMMU_IO_PGTABLE_FAST_SELFTEST
+
+#include <linux/dma-contiguous.h>
+
+static struct io_pgtable_cfg *cfg_cookie;
+
+static void dummy_tlb_flush_all(void *cookie)
+{
+ WARN_ON(cookie != cfg_cookie);
+}
+
+static void dummy_tlb_add_flush(unsigned long iova, size_t size, size_t granule,
+ bool leaf, void *cookie)
+{
+ WARN_ON(cookie != cfg_cookie);
+ WARN_ON(!(size & cfg_cookie->pgsize_bitmap));
+}
+
+static void dummy_tlb_sync(void *cookie)
+{
+ WARN_ON(cookie != cfg_cookie);
+}
+
+static struct iommu_gather_ops dummy_tlb_ops __initdata = {
+ .tlb_flush_all = dummy_tlb_flush_all,
+ .tlb_add_flush = dummy_tlb_add_flush,
+ .tlb_sync = dummy_tlb_sync,
+};
+
+/*
+ * Returns true if the iova range is successfully mapped to the contiguous
+ * phys range in ops.
+ */
+static bool av8l_fast_range_has_specific_mapping(struct io_pgtable_ops *ops,
+ const unsigned long iova_start,
+ const phys_addr_t phys_start,
+ const size_t size)
+{
+ u64 iova = iova_start;
+ phys_addr_t phys = phys_start;
+
+ while (iova < (iova_start + size)) {
+ /* + 42 just to make sure offsetting is working */
+ if (ops->iova_to_phys(ops, iova + 42) != (phys + 42))
+ return false;
+ iova += SZ_4K;
+ phys += SZ_4K;
+ }
+ return true;
+}
+
+static int __init av8l_fast_positive_testing(void)
+{
+ int failed = 0;
+ u64 iova;
+ struct io_pgtable_ops *ops;
+ struct io_pgtable_cfg cfg;
+ struct av8l_fast_io_pgtable *data;
+ av8l_fast_iopte *pmds;
+ u64 max = SZ_1G * 4ULL - 1;
+ u64 base = 0;
+
+ cfg = (struct io_pgtable_cfg) {
+ .quirks = 0,
+ .tlb = &dummy_tlb_ops,
+ .ias = 32,
+ .oas = 32,
+ .pgsize_bitmap = SZ_4K,
+ .iova_base = base,
+ .iova_end = max,
+ };
+
+ cfg_cookie = &cfg;
+ ops = alloc_io_pgtable_ops(ARM_V8L_FAST, &cfg, &cfg);
+
+ if (WARN_ON(!ops))
+ return 1;
+
+ data = iof_pgtable_ops_to_data(ops);
+ pmds = data->pmds;
+
+ /* map the entire 4GB VA space with 4K map calls */
+ for (iova = base; iova < max; iova += SZ_4K) {
+ if (WARN_ON(ops->map(ops, iova, iova, SZ_4K, IOMMU_READ))) {
+ failed++;
+ continue;
+ }
+ }
+ if (WARN_ON(!av8l_fast_range_has_specific_mapping(ops, base,
+ base, max - base)))
+ failed++;
+
+ /* unmap it all */
+ for (iova = base; iova < max; iova += SZ_4K) {
+ if (WARN_ON(ops->unmap(ops, iova, SZ_4K) != SZ_4K))
+ failed++;
+ }
+
+ /* sweep up TLB proving PTEs */
+ av8l_fast_clear_stale_ptes(pmds, base, base, max, false);
+
+ /* map the entire 4GB VA space with 8K map calls */
+ for (iova = base; iova < max; iova += SZ_8K) {
+ if (WARN_ON(ops->map(ops, iova, iova, SZ_8K, IOMMU_READ))) {
+ failed++;
+ continue;
+ }
+ }
+
+ if (WARN_ON(!av8l_fast_range_has_specific_mapping(ops, base,
+ base, max - base)))
+ failed++;
+
+ /* unmap it all with 8K unmap calls */
+ for (iova = base; iova < max; iova += SZ_8K) {
+ if (WARN_ON(ops->unmap(ops, iova, SZ_8K) != SZ_8K))
+ failed++;
+ }
+
+ /* sweep up TLB proving PTEs */
+ av8l_fast_clear_stale_ptes(pmds, base, base, max, false);
+
+ /* map the entire 4GB VA space with 16K map calls */
+ for (iova = base; iova < max; iova += SZ_16K) {
+ if (WARN_ON(ops->map(ops, iova, iova, SZ_16K, IOMMU_READ))) {
+ failed++;
+ continue;
+ }
+ }
+
+ if (WARN_ON(!av8l_fast_range_has_specific_mapping(ops, base,
+ base, max - base)))
+ failed++;
+
+ /* unmap it all */
+ for (iova = base; iova < max; iova += SZ_16K) {
+ if (WARN_ON(ops->unmap(ops, iova, SZ_16K) != SZ_16K))
+ failed++;
+ }
+
+ /* sweep up TLB proving PTEs */
+ av8l_fast_clear_stale_ptes(pmds, base, base, max, false);
+
+ /* map the entire 4GB VA space with 64K map calls */
+ for (iova = base; iova < max; iova += SZ_64K) {
+ if (WARN_ON(ops->map(ops, iova, iova, SZ_64K, IOMMU_READ))) {
+ failed++;
+ continue;
+ }
+ }
+
+ if (WARN_ON(!av8l_fast_range_has_specific_mapping(ops, base,
+ base, max - base)))
+ failed++;
+
+ /* unmap it all at once */
+ if (WARN_ON(ops->unmap(ops, base, max - base) != (max - base)))
+ failed++;
+
+ free_io_pgtable_ops(ops);
+ return failed;
+}
+
+static int __init av8l_fast_do_selftests(void)
+{
+ int failed = 0;
+
+ failed += av8l_fast_positive_testing();
+
+ pr_err("selftest: completed with %d failures\n", failed);
+
+ return 0;
+}
+subsys_initcall(av8l_fast_do_selftests);
+#endif
diff --git a/drivers/iommu/io-pgtable.c b/drivers/iommu/io-pgtable.c
index 127558d..b720e39 100644
--- a/drivers/iommu/io-pgtable.c
+++ b/drivers/iommu/io-pgtable.c
@@ -18,11 +18,16 @@
* Author: Will Deacon <will.deacon@arm.com>
*/
+#define pr_fmt(fmt) "io-pgtable: " fmt
+
#include <linux/bug.h>
+#include <linux/io-pgtable.h>
#include <linux/kernel.h>
#include <linux/types.h>
-
-#include "io-pgtable.h"
+#include <linux/iommu.h>
+#include <linux/debugfs.h>
+#include <linux/atomic.h>
+#include <linux/module.h>
static const struct io_pgtable_init_fns *
io_pgtable_init_table[IO_PGTABLE_NUM_FMTS] = {
@@ -35,8 +40,13 @@ io_pgtable_init_table[IO_PGTABLE_NUM_FMTS] = {
#ifdef CONFIG_IOMMU_IO_PGTABLE_ARMV7S
[ARM_V7S] = &io_pgtable_arm_v7s_init_fns,
#endif
+#ifdef CONFIG_IOMMU_IO_PGTABLE_FAST
+ [ARM_V8L_FAST] = &io_pgtable_av8l_fast_init_fns,
+#endif
};
+static struct dentry *io_pgtable_top;
+
struct io_pgtable_ops *alloc_io_pgtable_ops(enum io_pgtable_fmt fmt,
struct io_pgtable_cfg *cfg,
void *cookie)
@@ -61,6 +71,7 @@ struct io_pgtable_ops *alloc_io_pgtable_ops(enum io_pgtable_fmt fmt,
return &iop->ops;
}
+EXPORT_SYMBOL_GPL(alloc_io_pgtable_ops);
/*
* It is the IOMMU driver's responsibility to ensure that the page table
@@ -77,3 +88,52 @@ void free_io_pgtable_ops(struct io_pgtable_ops *ops)
io_pgtable_tlb_flush_all(iop);
io_pgtable_init_table[iop->fmt]->free(iop);
}
+EXPORT_SYMBOL_GPL(free_io_pgtable_ops);
+
+static atomic_t pages_allocated;
+
+void *io_pgtable_alloc_pages_exact(struct io_pgtable_cfg *cfg, void *cookie,
+ size_t size, gfp_t gfp_mask)
+{
+ void *ret;
+
+ if (cfg->tlb->alloc_pages_exact)
+ ret = cfg->tlb->alloc_pages_exact(cookie, size, gfp_mask);
+ else
+ ret = alloc_pages_exact(size, gfp_mask);
+
+ if (likely(ret))
+ atomic_add(1 << get_order(size), &pages_allocated);
+
+ return ret;
+}
+
+void io_pgtable_free_pages_exact(struct io_pgtable_cfg *cfg, void *cookie,
+ void *virt, size_t size)
+{
+ if (cfg->tlb->free_pages_exact)
+ cfg->tlb->free_pages_exact(cookie, virt, size);
+ else
+ free_pages_exact(virt, size);
+
+ atomic_sub(1 << get_order(size), &pages_allocated);
+}
+
+static int __init io_pgtable_init(void)
+{
+ static const char io_pgtable_str[] __initconst = "io-pgtable";
+ static const char pages_str[] __initconst = "pages";
+
+ io_pgtable_top = debugfs_create_dir(io_pgtable_str, iommu_debugfs_top);
+ debugfs_create_atomic_t(pages_str, 0600, io_pgtable_top,
+ &pages_allocated);
+ return 0;
+}
+
+static void __exit io_pgtable_exit(void)
+{
+ debugfs_remove_recursive(io_pgtable_top);
+}
+
+module_init(io_pgtable_init);
+module_exit(io_pgtable_exit);
diff --git a/drivers/iommu/iommu-sysfs.c b/drivers/iommu/iommu-sysfs.c
index 36d1a7c..6cc4fd1 100644
--- a/drivers/iommu/iommu-sysfs.c
+++ b/drivers/iommu/iommu-sysfs.c
@@ -90,6 +90,7 @@ int iommu_device_sysfs_add(struct iommu_device *iommu,
put_device(iommu->dev);
return ret;
}
+EXPORT_SYMBOL_GPL(iommu_device_sysfs_add);
void iommu_device_sysfs_remove(struct iommu_device *iommu)
{
@@ -122,6 +123,7 @@ int iommu_device_link(struct iommu_device *iommu, struct device *link)
return ret;
}
+EXPORT_SYMBOL_GPL(iommu_device_link);
void iommu_device_unlink(struct iommu_device *iommu, struct device *link)
{
@@ -131,3 +133,4 @@ void iommu_device_unlink(struct iommu_device *iommu, struct device *link)
sysfs_remove_link(&link->kobj, "iommu");
sysfs_remove_link_from_group(&iommu->dev->kobj, "devices", dev_name(link));
}
+EXPORT_SYMBOL_GPL(iommu_device_unlink);
diff --git a/drivers/iommu/iommu-traces.c b/drivers/iommu/iommu-traces.c
index 1e9ca77..6522acc 100644
--- a/drivers/iommu/iommu-traces.c
+++ b/drivers/iommu/iommu-traces.c
@@ -26,3 +26,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(unmap);
/* iommu_error */
EXPORT_TRACEPOINT_SYMBOL_GPL(io_page_fault);
+EXPORT_TRACEPOINT_SYMBOL_GPL(smmu_init);
+EXPORT_TRACEPOINT_SYMBOL_GPL(tlbi_end);
+EXPORT_TRACEPOINT_SYMBOL_GPL(tlbi_start);
+EXPORT_TRACEPOINT_SYMBOL_GPL(tlbsync_timeout);
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 85ef6c9..14124d2 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -100,6 +100,7 @@ int iommu_device_register(struct iommu_device *iommu)
return 0;
}
+EXPORT_SYMBOL_GPL(iommu_device_register);
void iommu_device_unregister(struct iommu_device *iommu)
{
@@ -786,6 +787,7 @@ struct iommu_group *iommu_group_ref_get(struct iommu_group *group)
kobject_get(group->devices_kobj);
return group;
}
+EXPORT_SYMBOL_GPL(iommu_group_ref_get);
/**
* iommu_group_put - Decrement group reference
@@ -959,6 +961,7 @@ struct iommu_group *generic_device_group(struct device *dev)
{
return iommu_group_alloc();
}
+EXPORT_SYMBOL_GPL(generic_device_group);
/*
* Use standard PCI bus topology, isolation features, and DMA alias quirks
@@ -1026,6 +1029,7 @@ struct iommu_group *pci_device_group(struct device *dev)
/* No shared group found, allocate new */
return iommu_group_alloc();
}
+EXPORT_SYMBOL_GPL(pci_device_group);
/**
* iommu_group_get_for_dev - Find or create the IOMMU group for a device
@@ -1085,6 +1089,7 @@ struct iommu_group *iommu_group_get_for_dev(struct device *dev)
return group;
}
+EXPORT_SYMBOL_GPL(iommu_group_get_for_dev);
struct iommu_domain *iommu_group_default_domain(struct iommu_group *group)
{
@@ -1205,7 +1210,6 @@ static int iommu_bus_init(struct bus_type *bus, const struct iommu_ops *ops)
if (err)
goto out_err;
-
return 0;
out_err:
@@ -1304,6 +1308,8 @@ static struct iommu_domain *__iommu_domain_alloc(struct bus_type *bus,
domain->type = type;
/* Assume all sizes by default; the driver may override this later */
domain->pgsize_bitmap = bus->iommu_ops->pgsize_bitmap;
+ domain->is_debug_domain = false;
+ memset(domain->name, 0, IOMMU_DOMAIN_NAME_LEN);
return domain;
}
@@ -1332,8 +1338,14 @@ static int __iommu_attach_device(struct iommu_domain *domain,
return -ENODEV;
ret = domain->ops->attach_dev(domain, dev);
- if (!ret)
+ if (!ret) {
trace_attach_device_to_domain(dev);
+
+ if (!strnlen(domain->name, IOMMU_DOMAIN_NAME_LEN)) {
+ strlcpy(domain->name, dev_name(dev),
+ IOMMU_DOMAIN_NAME_LEN);
+ }
+ }
return ret;
}
@@ -1440,9 +1452,6 @@ static int __iommu_attach_group(struct iommu_domain *domain,
{
int ret;
- if (group->default_domain && group->domain != group->default_domain)
- return -EBUSY;
-
ret = __iommu_group_for_each_dev(group, domain,
iommu_group_do_attach_device);
if (ret == 0)
@@ -1472,28 +1481,18 @@ static int iommu_group_do_detach_device(struct device *dev, void *data)
return 0;
}
+/*
+ * Although upstream implements detaching the default_domain as a noop,
+ * the "SID switch" secure usecase require complete removal of SIDS/SMRS
+ * from HLOS iommu registers.
+ */
static void __iommu_detach_group(struct iommu_domain *domain,
struct iommu_group *group)
{
- int ret;
-
- if (!group->default_domain) {
- __iommu_group_for_each_dev(group, domain,
+ __iommu_group_for_each_dev(group, domain,
iommu_group_do_detach_device);
- group->domain = NULL;
- return;
- }
-
- if (group->domain == group->default_domain)
- return;
-
- /* Detach by re-attaching to the default domain */
- ret = __iommu_group_for_each_dev(group, group->default_domain,
- iommu_group_do_attach_device);
- if (ret != 0)
- WARN_ON(1);
- else
- group->domain = group->default_domain;
+ group->domain = NULL;
+ return;
}
void iommu_detach_group(struct iommu_domain *domain, struct iommu_group *group)
@@ -1513,8 +1512,34 @@ phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, dma_addr_t iova)
}
EXPORT_SYMBOL_GPL(iommu_iova_to_phys);
-static size_t iommu_pgsize(struct iommu_domain *domain,
- unsigned long addr_merge, size_t size)
+phys_addr_t iommu_iova_to_phys_hard(struct iommu_domain *domain,
+ dma_addr_t iova)
+{
+ if (unlikely(domain->ops->iova_to_phys_hard == NULL))
+ return 0;
+
+ return domain->ops->iova_to_phys_hard(domain, iova);
+}
+
+uint64_t iommu_iova_to_pte(struct iommu_domain *domain,
+ dma_addr_t iova)
+{
+ if (unlikely(domain->ops->iova_to_pte == NULL))
+ return 0;
+
+ return domain->ops->iova_to_pte(domain, iova);
+}
+
+bool iommu_is_iova_coherent(struct iommu_domain *domain, dma_addr_t iova)
+{
+ if (unlikely(domain->ops->is_iova_coherent == NULL))
+ return 0;
+
+ return domain->ops->is_iova_coherent(domain, iova);
+}
+
+size_t iommu_pgsize(unsigned long pgsize_bitmap,
+ unsigned long addr_merge, size_t size)
{
unsigned int pgsize_idx;
size_t pgsize;
@@ -1533,10 +1558,14 @@ static size_t iommu_pgsize(struct iommu_domain *domain,
pgsize = (1UL << (pgsize_idx + 1)) - 1;
/* throw away page sizes not supported by the hardware */
- pgsize &= domain->pgsize_bitmap;
+ pgsize &= pgsize_bitmap;
/* make sure we're still sane */
- BUG_ON(!pgsize);
+ if (!pgsize) {
+ pr_err("invalid pgsize/addr/size! 0x%lx 0x%lx 0x%zx\n",
+ pgsize_bitmap, addr_merge, size);
+ BUG();
+ }
/* pick the biggest page */
pgsize_idx = __fls(pgsize);
@@ -1578,7 +1607,8 @@ int iommu_map(struct iommu_domain *domain, unsigned long iova,
pr_debug("map: iova 0x%lx pa %pa size 0x%zx\n", iova, &paddr, size);
while (size) {
- size_t pgsize = iommu_pgsize(domain, iova | paddr, size);
+ size_t pgsize = iommu_pgsize(domain->pgsize_bitmap,
+ iova | paddr, size);
pr_debug("mapping: iova 0x%lx pa %pa pgsize 0x%zx\n",
iova, &paddr, pgsize);
@@ -1596,7 +1626,7 @@ int iommu_map(struct iommu_domain *domain, unsigned long iova,
if (ret)
iommu_unmap(domain, orig_iova, orig_size - size);
else
- trace_map(orig_iova, orig_paddr, orig_size);
+ trace_map(domain, orig_iova, orig_paddr, orig_size, prot);
return ret;
}
@@ -1639,14 +1669,14 @@ static size_t __iommu_unmap(struct iommu_domain *domain,
* or we hit an area that isn't mapped.
*/
while (unmapped < size) {
- size_t pgsize = iommu_pgsize(domain, iova, size - unmapped);
+ size_t left = size - unmapped;
- unmapped_page = ops->unmap(domain, iova, pgsize);
+ unmapped_page = ops->unmap(domain, iova, left);
if (!unmapped_page)
break;
if (sync && ops->iotlb_range_add)
- ops->iotlb_range_add(domain, iova, pgsize);
+ ops->iotlb_range_add(domain, iova, left);
pr_debug("unmapped: iova 0x%lx size 0x%zx\n",
iova, unmapped_page);
@@ -1658,7 +1688,7 @@ static size_t __iommu_unmap(struct iommu_domain *domain,
if (sync && ops->iotlb_sync)
ops->iotlb_sync(domain);
- trace_unmap(orig_iova, size, unmapped);
+ trace_unmap(domain, orig_iova, size, unmapped);
return unmapped;
}
@@ -1676,7 +1706,19 @@ size_t iommu_unmap_fast(struct iommu_domain *domain,
}
EXPORT_SYMBOL_GPL(iommu_unmap_fast);
-size_t iommu_map_sg(struct iommu_domain *domain, unsigned long iova,
+size_t iommu_map_sg(struct iommu_domain *domain,
+ unsigned long iova, struct scatterlist *sg,
+ unsigned int nents, int prot)
+{
+ size_t mapped;
+
+ mapped = domain->ops->map_sg(domain, iova, sg, nents, prot);
+ trace_map_sg(domain, iova, mapped, prot);
+ return mapped;
+}
+EXPORT_SYMBOL(iommu_map_sg);
+
+size_t default_iommu_map_sg(struct iommu_domain *domain, unsigned long iova,
struct scatterlist *sg, unsigned int nents, int prot)
{
struct scatterlist *s;
@@ -1717,7 +1759,7 @@ size_t iommu_map_sg(struct iommu_domain *domain, unsigned long iova,
return 0;
}
-EXPORT_SYMBOL_GPL(iommu_map_sg);
+EXPORT_SYMBOL_GPL(default_iommu_map_sg);
int iommu_domain_window_enable(struct iommu_domain *domain, u32 wnd_nr,
phys_addr_t paddr, u64 size, int prot)
@@ -1781,6 +1823,9 @@ int report_iommu_fault(struct iommu_domain *domain, struct device *dev,
}
EXPORT_SYMBOL_GPL(report_iommu_fault);
+struct dentry *iommu_debugfs_top;
+EXPORT_SYMBOL_GPL(iommu_debugfs_top);
+
static int __init iommu_init(void)
{
iommu_group_kset = kset_create_and_add("iommu_groups",
@@ -1874,6 +1919,21 @@ void iommu_put_resv_regions(struct device *dev, struct list_head *list)
ops->put_resv_regions(dev, list);
}
+/**
+ * iommu_trigger_fault() - trigger an IOMMU fault
+ * @domain: iommu domain
+ *
+ * Triggers a fault on the device to which this domain is attached.
+ *
+ * This function should only be used for debugging purposes, for obvious
+ * reasons.
+ */
+void iommu_trigger_fault(struct iommu_domain *domain, unsigned long flags)
+{
+ if (domain->ops->trigger_fault)
+ domain->ops->trigger_fault(domain, flags);
+}
+
struct iommu_resv_region *iommu_alloc_resv_region(phys_addr_t start,
size_t length, int prot,
enum iommu_resv_type type)
@@ -1891,6 +1951,7 @@ struct iommu_resv_region *iommu_alloc_resv_region(phys_addr_t start,
region->type = type;
return region;
}
+EXPORT_SYMBOL_GPL(iommu_alloc_resv_region);
/* Request that a device is direct mapped by the IOMMU */
int iommu_request_dm_for_dev(struct device *dev)
diff --git a/drivers/iommu/iova.c b/drivers/iommu/iova.c
index ce5cd05..208f25b 100644
--- a/drivers/iommu/iova.c
+++ b/drivers/iommu/iova.c
@@ -61,6 +61,7 @@ init_iova_domain(struct iova_domain *iovad, unsigned long granule,
iovad->anchor.pfn_lo = iovad->anchor.pfn_hi = IOVA_ANCHOR;
rb_link_node(&iovad->anchor.node, NULL, &iovad->rbroot.rb_node);
rb_insert_color(&iovad->anchor.node, &iovad->rbroot);
+ iovad->best_fit = false;
init_iova_rcaches(iovad);
}
EXPORT_SYMBOL_GPL(init_iova_domain);
@@ -186,6 +187,24 @@ iova_insert_rbtree(struct rb_root *root, struct iova *iova,
rb_insert_color(&iova->node, root);
}
+#ifdef CONFIG_ARM64_DMA_IOMMU_ALIGNMENT
+static unsigned long limit_align(struct iova_domain *iovad,
+ unsigned long shift)
+{
+ unsigned long max;
+
+ max = CONFIG_ARM64_DMA_IOMMU_ALIGNMENT + PAGE_SHIFT
+ - iova_shift(iovad);
+ return min(shift, max);
+}
+#else
+static unsigned long limit_align(struct iova_domain *iovad,
+ unsigned long shift)
+{
+ return shift;
+}
+#endif
+
static int __alloc_and_insert_iova_range(struct iova_domain *iovad,
unsigned long size, unsigned long limit_pfn,
struct iova *new, bool size_aligned)
@@ -197,7 +216,7 @@ static int __alloc_and_insert_iova_range(struct iova_domain *iovad,
unsigned long align_mask = ~0UL;
if (size_aligned)
- align_mask <<= fls_long(size - 1);
+ align_mask <<= limit_align(iovad, fls_long(size - 1));
/* Walk the tree backwards */
spin_lock_irqsave(&iovad->iova_rbtree_lock, flags);
@@ -230,6 +249,69 @@ static int __alloc_and_insert_iova_range(struct iova_domain *iovad,
return 0;
}
+static int __alloc_and_insert_iova_best_fit(struct iova_domain *iovad,
+ unsigned long size, unsigned long limit_pfn,
+ struct iova *new, bool size_aligned)
+{
+ struct rb_node *curr, *prev;
+ struct iova *curr_iova, *prev_iova;
+ unsigned long flags;
+ unsigned long align_mask = ~0UL;
+ struct rb_node *candidate_rb_parent;
+ unsigned long new_pfn, candidate_pfn = ~0UL;
+ unsigned long gap, candidate_gap = ~0UL;
+
+ if (size_aligned)
+ align_mask <<= limit_align(iovad, fls_long(size - 1));
+
+ /* Walk the tree backwards */
+ spin_lock_irqsave(&iovad->iova_rbtree_lock, flags);
+ curr = &iovad->anchor.node;
+ prev = rb_prev(curr);
+ for (; prev; curr = prev, prev = rb_prev(curr)) {
+ curr_iova = rb_entry(curr, struct iova, node);
+ prev_iova = rb_entry(prev, struct iova, node);
+
+ limit_pfn = min(limit_pfn, curr_iova->pfn_lo);
+ new_pfn = (limit_pfn - size) & align_mask;
+ gap = curr_iova->pfn_lo - prev_iova->pfn_hi - 1;
+ if ((limit_pfn >= size) && (new_pfn > prev_iova->pfn_hi)
+ && (gap < candidate_gap)) {
+ candidate_gap = gap;
+ candidate_pfn = new_pfn;
+ candidate_rb_parent = curr;
+ if (gap == size)
+ goto insert;
+ }
+ }
+
+ curr_iova = rb_entry(curr, struct iova, node);
+ limit_pfn = min(limit_pfn, curr_iova->pfn_lo);
+ new_pfn = (limit_pfn - size) & align_mask;
+ gap = curr_iova->pfn_lo - iovad->start_pfn;
+ if (limit_pfn >= size && new_pfn >= iovad->start_pfn &&
+ gap < candidate_gap) {
+ candidate_gap = gap;
+ candidate_pfn = new_pfn;
+ candidate_rb_parent = curr;
+ }
+
+insert:
+ if (candidate_pfn == ~0UL) {
+ spin_unlock_irqrestore(&iovad->iova_rbtree_lock, flags);
+ return -ENOMEM;
+ }
+
+ /* pfn_lo will point to size aligned address if size_aligned is set */
+ new->pfn_lo = candidate_pfn;
+ new->pfn_hi = new->pfn_lo + size - 1;
+
+ /* If we have 'prev', it's a valid place to start the insertion. */
+ iova_insert_rbtree(&iovad->rbroot, new, candidate_rb_parent);
+ spin_unlock_irqrestore(&iovad->iova_rbtree_lock, flags);
+ return 0;
+}
+
static struct kmem_cache *iova_cache;
static unsigned int iova_cache_users;
static DEFINE_MUTEX(iova_cache_mutex);
@@ -305,8 +387,13 @@ alloc_iova(struct iova_domain *iovad, unsigned long size,
if (!new_iova)
return NULL;
- ret = __alloc_and_insert_iova_range(iovad, size, limit_pfn + 1,
- new_iova, size_aligned);
+ if (iovad->best_fit) {
+ ret = __alloc_and_insert_iova_best_fit(iovad, size,
+ limit_pfn + 1, new_iova, size_aligned);
+ } else {
+ ret = __alloc_and_insert_iova_range(iovad, size, limit_pfn + 1,
+ new_iova, size_aligned);
+ }
if (ret) {
free_iova_mem(new_iova);
diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c
index d8598e4..afeeb7c9 100644
--- a/drivers/iommu/ipmmu-vmsa.c
+++ b/drivers/iommu/ipmmu-vmsa.c
@@ -16,6 +16,7 @@
#include <linux/export.h>
#include <linux/interrupt.h>
#include <linux/io.h>
+#include <linux/io-pgtable.h>
#include <linux/iommu.h>
#include <linux/module.h>
#include <linux/of.h>
@@ -37,8 +38,6 @@
#define arm_iommu_detach_device(...) do {} while (0)
#endif
-#include "io-pgtable.h"
-
#define IPMMU_CTX_MAX 8
struct ipmmu_features {
diff --git a/drivers/iommu/msm_iommu.c b/drivers/iommu/msm_iommu.c
index fc5f0b5..8419217 100644
--- a/drivers/iommu/msm_iommu.c
+++ b/drivers/iommu/msm_iommu.c
@@ -21,6 +21,7 @@
#include <linux/platform_device.h>
#include <linux/errno.h>
#include <linux/io.h>
+#include <linux/io-pgtable.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/spinlock.h>
@@ -35,7 +36,6 @@
#include "msm_iommu_hw-8xxx.h"
#include "msm_iommu.h"
-#include "io-pgtable.h"
#define MRC(reg, processor, op1, crn, crm, op2) \
__asm__ __volatile__ ( \
diff --git a/drivers/iommu/mtk_iommu.h b/drivers/iommu/mtk_iommu.h
index 778498b..62c2c3e 100644
--- a/drivers/iommu/mtk_iommu.h
+++ b/drivers/iommu/mtk_iommu.h
@@ -19,13 +19,12 @@
#include <linux/component.h>
#include <linux/device.h>
#include <linux/io.h>
+#include <linux/io-pgtable.h>
#include <linux/iommu.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <soc/mediatek/smi.h>
-#include "io-pgtable.h"
-
struct mtk_iommu_suspend_reg {
u32 standard_axi_mode;
u32 dcm_dis;
diff --git a/drivers/iommu/qcom_iommu.c b/drivers/iommu/qcom_iommu.c
index b0a4a3d2..c7e0ab2 100644
--- a/drivers/iommu/qcom_iommu.c
+++ b/drivers/iommu/qcom_iommu.c
@@ -26,6 +26,7 @@
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/io-64-nonatomic-hi-lo.h>
+#include <linux/io-pgtable.h>
#include <linux/iommu.h>
#include <linux/iopoll.h>
#include <linux/kconfig.h>
@@ -42,7 +43,6 @@
#include <linux/slab.h>
#include <linux/spinlock.h>
-#include "io-pgtable.h"
#include "arm-smmu-regs.h"
#define SMMU_INTR_SEL_NS 0x2000
diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c
index ac888d7..6033197 100644
--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c
@@ -28,6 +28,8 @@
#include <linux/of_irq.h>
#include <linux/percpu.h>
#include <linux/slab.h>
+#include <linux/wakeup_reason.h>
+
#include <linux/irqchip.h>
#include <linux/irqchip/arm-gic-common.h>
@@ -362,6 +364,8 @@ static asmlinkage void __exception_irq_entry gic_handle_irq(struct pt_regs *regs
err = handle_domain_irq(gic_data.domain, irqnr, regs);
if (err) {
WARN_ONCE(true, "Unexpected interrupt received!\n");
+ log_abnormal_wakeup_reason(
+ "unexpected HW IRQ %u", irqnr);
if (static_branch_likely(&supports_deactivate_key)) {
if (irqnr < 8192)
gic_write_dir(irqnr);
@@ -1270,7 +1274,7 @@ static void __init gic_of_setup_kvm_info(struct device_node *node)
gic_set_kvm_info(&gic_v3_kvm_info);
}
-static int __init gic_of_init(struct device_node *node, struct device_node *parent)
+static int __init gicv3_of_init(struct device_node *node, struct device_node *parent)
{
void __iomem *dist_base;
struct redist_region *rdist_regs;
@@ -1338,7 +1342,7 @@ static int __init gic_of_init(struct device_node *node, struct device_node *pare
return err;
}
-IRQCHIP_DECLARE(gic_v3, "arm,gic-v3", gic_of_init);
+IRQCHIP_DECLARE(gic_v3, "arm,gic-v3", gicv3_of_init);
#ifdef CONFIG_ACPI
static struct
diff --git a/drivers/mailbox/mailbox.c b/drivers/mailbox/mailbox.c
index 10a559c..3980e50 100644
--- a/drivers/mailbox/mailbox.c
+++ b/drivers/mailbox/mailbox.c
@@ -53,7 +53,7 @@ static int add_to_rbuf(struct mbox_chan *chan, void *mssg)
return idx;
}
-static void msg_submit(struct mbox_chan *chan)
+static int __msg_submit(struct mbox_chan *chan)
{
unsigned count, idx;
unsigned long flags;
@@ -85,6 +85,24 @@ static void msg_submit(struct mbox_chan *chan)
exit:
spin_unlock_irqrestore(&chan->lock, flags);
+ return err;
+}
+
+static void msg_submit(struct mbox_chan *chan)
+{
+ int err = 0;
+
+ /*
+ * If the controller returns -EAGAIN, then it means, our spinlock
+ * here is preventing the controller from receiving its interrupt,
+ * that would help clear the controller channels that are currently
+ * blocked waiting on the interrupt response.
+ * Retry again.
+ */
+ do {
+ err = __msg_submit(chan);
+ } while (err == -EAGAIN);
+
/* kick start the timer immediately to avoid delays */
if (!err && (chan->txdone_method & TXDONE_BY_POLL)) {
/* but only if not already active */
diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig
index 8b8c123..755c93f 100644
--- a/drivers/md/Kconfig
+++ b/drivers/md/Kconfig
@@ -294,6 +294,27 @@
If unsure, say N.
+config DM_DEFAULT_KEY
+ tristate "Default-key target support"
+ depends on BLK_DEV_DM
+ depends on BLK_INLINE_ENCRYPTION
+ # dm-default-key doesn't require -o inlinecrypt, but it does currently
+ # rely on the inline encryption hooks being built into the kernel.
+ depends on FS_ENCRYPTION_INLINE_CRYPT
+ help
+ This device-mapper target allows you to create a device that
+ assigns a default encryption key to bios that aren't for the
+ contents of an encrypted file.
+
+ This ensures that all blocks on-disk will be encrypted with
+ some key, without the performance hit of file contents being
+ encrypted twice when fscrypt (File-Based Encryption) is used.
+
+ It is only appropriate to use dm-default-key when key
+ configuration is tightly controlled, like it is in Android,
+ such that all fscrypt keys are at least as hard to compromise
+ as the default key.
+
config DM_SNAPSHOT
tristate "Snapshot target"
depends on BLK_DEV_DM
@@ -479,6 +500,15 @@
If unsure, say N.
+config DM_VERITY_AVB
+ tristate "Support AVB specific verity error behavior"
+ depends on DM_VERITY
+ ---help---
+ Enables Android Verified Boot platform-specific error
+ behavior. In particular, it will modify the vbmeta partition
+ specified on the kernel command-line when non-transient error
+ occurs (followed by a panic).
+
config DM_VERITY_FEC
bool "Verity forward error correction support"
depends on DM_VERITY
@@ -559,4 +589,30 @@
If unsure, say N.
+config DM_BOW
+ tristate "Backup block device"
+ depends on BLK_DEV_DM
+ select DM_BUFIO
+ ---help---
+ This device-mapper target takes a device and keeps a log of all
+ changes using free blocks identified by issuing a trim command.
+ This can then be restored by running a command line utility,
+ or committed by simply replacing the target.
+
+ If unsure, say N.
+
+config DM_USER
+ tristate "Block device in userspace"
+ depends on BLK_DEV_DM
+ default y
+ help
+ This device-mapper target allows a userspace daemon to provide the
+ contents of a block device. See
+ <file:Documentation/block/dm-user.rst> for more information.
+
+ To compile this code as a module, choose M here: the module will be
+ called dm-user.
+
+ If unsure, say N.
+
endif # MD
diff --git a/drivers/md/Makefile b/drivers/md/Makefile
index 822f4e8..6366764 100644
--- a/drivers/md/Makefile
+++ b/drivers/md/Makefile
@@ -47,6 +47,7 @@
obj-$(CONFIG_DM_BUFIO) += dm-bufio.o
obj-$(CONFIG_DM_BIO_PRISON) += dm-bio-prison.o
obj-$(CONFIG_DM_CRYPT) += dm-crypt.o
+obj-$(CONFIG_DM_DEFAULT_KEY) += dm-default-key.o
obj-$(CONFIG_DM_DELAY) += dm-delay.o
obj-$(CONFIG_DM_FLAKEY) += dm-flakey.o
obj-$(CONFIG_DM_MULTIPATH) += dm-multipath.o dm-round-robin.o
@@ -68,11 +69,17 @@
obj-$(CONFIG_DM_INTEGRITY) += dm-integrity.o
obj-$(CONFIG_DM_ZONED) += dm-zoned.o
obj-$(CONFIG_DM_WRITECACHE) += dm-writecache.o
+obj-$(CONFIG_DM_BOW) += dm-bow.o
+obj-$(CONFIG_DM_USER) += dm-user.o
ifeq ($(CONFIG_DM_UEVENT),y)
dm-mod-objs += dm-uevent.o
endif
+ifeq ($(CONFIG_DM_VERITY_AVB),y)
+dm-verity-objs += dm-verity-avb.o
+endif
+
ifeq ($(CONFIG_DM_VERITY_FEC),y)
dm-verity-objs += dm-verity-fec.o
endif
diff --git a/drivers/md/dm-bow.c b/drivers/md/dm-bow.c
new file mode 100644
index 0000000..62a1203
--- /dev/null
+++ b/drivers/md/dm-bow.c
@@ -0,0 +1,1297 @@
+/*
+ * Copyright (C) 2018 Google Limited.
+ *
+ * This file is released under the GPL.
+ */
+
+#include "dm.h"
+#include "dm-core.h"
+
+#include <linux/crc32.h>
+#include <linux/dm-bufio.h>
+#include <linux/module.h>
+
+#define DM_MSG_PREFIX "bow"
+
+struct log_entry {
+ u64 source;
+ u64 dest;
+ u32 size;
+ u32 checksum;
+} __packed;
+
+struct log_sector {
+ u32 magic;
+ u16 header_version;
+ u16 header_size;
+ u32 block_size;
+ u32 count;
+ u32 sequence;
+ sector_t sector0;
+ struct log_entry entries[];
+} __packed;
+
+/*
+ * MAGIC is BOW in ascii
+ */
+#define MAGIC 0x00574f42
+#define HEADER_VERSION 0x0100
+
+/*
+ * A sorted set of ranges representing the state of the data on the device.
+ * Use an rb_tree for fast lookup of a given sector
+ * Consecutive ranges are always of different type - operations on this
+ * set must merge matching consecutive ranges.
+ *
+ * Top range is always of type TOP
+ */
+struct bow_range {
+ struct rb_node node;
+ sector_t sector;
+ enum {
+ INVALID, /* Type not set */
+ SECTOR0, /* First sector - holds log record */
+ SECTOR0_CURRENT,/* Live contents of sector0 */
+ UNCHANGED, /* Original contents */
+ TRIMMED, /* Range has been trimmed */
+ CHANGED, /* Range has been changed */
+ BACKUP, /* Range is being used as a backup */
+ TOP, /* Final range - sector is size of device */
+ } type;
+ struct list_head trimmed_list; /* list of TRIMMED ranges */
+};
+
+static const char * const readable_type[] = {
+ "Invalid",
+ "Sector0",
+ "Sector0_current",
+ "Unchanged",
+ "Free",
+ "Changed",
+ "Backup",
+ "Top",
+};
+
+enum state {
+ TRIM,
+ CHECKPOINT,
+ COMMITTED,
+};
+
+struct bow_context {
+ struct dm_dev *dev;
+ u32 block_size;
+ u32 block_shift;
+ struct workqueue_struct *workqueue;
+ struct dm_bufio_client *bufio;
+ struct mutex ranges_lock; /* Hold to access this struct and/or ranges */
+ struct rb_root ranges;
+ struct dm_kobject_holder kobj_holder; /* for sysfs attributes */
+ atomic_t state; /* One of the enum state values above */
+ u64 trims_total;
+ struct log_sector *log_sector;
+ struct list_head trimmed_list;
+ bool forward_trims;
+};
+
+sector_t range_top(struct bow_range *br)
+{
+ return container_of(rb_next(&br->node), struct bow_range, node)
+ ->sector;
+}
+
+u64 range_size(struct bow_range *br)
+{
+ return (range_top(br) - br->sector) * SECTOR_SIZE;
+}
+
+static sector_t bvec_top(struct bvec_iter *bi_iter)
+{
+ return bi_iter->bi_sector + bi_iter->bi_size / SECTOR_SIZE;
+}
+
+/*
+ * Find the first range that overlaps with bi_iter
+ * bi_iter is set to the size of the overlapping sub-range
+ */
+static struct bow_range *find_first_overlapping_range(struct rb_root *ranges,
+ struct bvec_iter *bi_iter)
+{
+ struct rb_node *node = ranges->rb_node;
+ struct bow_range *br;
+
+ while (node) {
+ br = container_of(node, struct bow_range, node);
+
+ if (br->sector <= bi_iter->bi_sector
+ && bi_iter->bi_sector < range_top(br))
+ break;
+
+ if (bi_iter->bi_sector < br->sector)
+ node = node->rb_left;
+ else
+ node = node->rb_right;
+ }
+
+ WARN_ON(!node);
+ if (!node)
+ return NULL;
+
+ if (range_top(br) - bi_iter->bi_sector
+ < bi_iter->bi_size >> SECTOR_SHIFT)
+ bi_iter->bi_size = (range_top(br) - bi_iter->bi_sector)
+ << SECTOR_SHIFT;
+
+ return br;
+}
+
+void add_before(struct rb_root *ranges, struct bow_range *new_br,
+ struct bow_range *existing)
+{
+ struct rb_node *parent = &(existing->node);
+ struct rb_node **link = &(parent->rb_left);
+
+ while (*link) {
+ parent = *link;
+ link = &((*link)->rb_right);
+ }
+
+ rb_link_node(&new_br->node, parent, link);
+ rb_insert_color(&new_br->node, ranges);
+}
+
+/*
+ * Given a range br returned by find_first_overlapping_range, split br into a
+ * leading range, a range matching the bi_iter and a trailing range.
+ * Leading and trailing may end up size 0 and will then be deleted. The
+ * new range matching the bi_iter is then returned and should have its type
+ * and type specific fields populated.
+ * If bi_iter runs off the end of the range, bi_iter is truncated accordingly
+ */
+static int split_range(struct bow_context *bc, struct bow_range **br,
+ struct bvec_iter *bi_iter)
+{
+ struct bow_range *new_br;
+
+ if (bi_iter->bi_sector < (*br)->sector) {
+ WARN_ON(true);
+ return BLK_STS_IOERR;
+ }
+
+ if (bi_iter->bi_sector > (*br)->sector) {
+ struct bow_range *leading_br =
+ kzalloc(sizeof(*leading_br), GFP_KERNEL);
+
+ if (!leading_br)
+ return BLK_STS_RESOURCE;
+
+ *leading_br = **br;
+ if (leading_br->type == TRIMMED)
+ list_add(&leading_br->trimmed_list, &bc->trimmed_list);
+
+ add_before(&bc->ranges, leading_br, *br);
+ (*br)->sector = bi_iter->bi_sector;
+ }
+
+ if (bvec_top(bi_iter) >= range_top(*br)) {
+ bi_iter->bi_size = (range_top(*br) - (*br)->sector)
+ * SECTOR_SIZE;
+ return BLK_STS_OK;
+ }
+
+ /* new_br will be the beginning, existing br will be the tail */
+ new_br = kzalloc(sizeof(*new_br), GFP_KERNEL);
+ if (!new_br)
+ return BLK_STS_RESOURCE;
+
+ new_br->sector = (*br)->sector;
+ (*br)->sector = bvec_top(bi_iter);
+ add_before(&bc->ranges, new_br, *br);
+ *br = new_br;
+
+ return BLK_STS_OK;
+}
+
+/*
+ * Sets type of a range. May merge range into surrounding ranges
+ * Since br may be invalidated, always sets br to NULL to prevent
+ * usage after this is called
+ */
+static void set_type(struct bow_context *bc, struct bow_range **br, int type)
+{
+ struct bow_range *prev = container_of(rb_prev(&(*br)->node),
+ struct bow_range, node);
+ struct bow_range *next = container_of(rb_next(&(*br)->node),
+ struct bow_range, node);
+
+ if ((*br)->type == TRIMMED) {
+ bc->trims_total -= range_size(*br);
+ list_del(&(*br)->trimmed_list);
+ }
+
+ if (type == TRIMMED) {
+ bc->trims_total += range_size(*br);
+ list_add(&(*br)->trimmed_list, &bc->trimmed_list);
+ }
+
+ (*br)->type = type;
+
+ if (next->type == type) {
+ if (type == TRIMMED)
+ list_del(&next->trimmed_list);
+ rb_erase(&next->node, &bc->ranges);
+ kfree(next);
+ }
+
+ if (prev->type == type) {
+ if (type == TRIMMED)
+ list_del(&(*br)->trimmed_list);
+ rb_erase(&(*br)->node, &bc->ranges);
+ kfree(*br);
+ }
+
+ *br = NULL;
+}
+
+static struct bow_range *find_free_range(struct bow_context *bc)
+{
+ if (list_empty(&bc->trimmed_list)) {
+ DMERR("Unable to find free space to back up to");
+ return NULL;
+ }
+
+ return list_first_entry(&bc->trimmed_list, struct bow_range,
+ trimmed_list);
+}
+
+static sector_t sector_to_page(struct bow_context const *bc, sector_t sector)
+{
+ WARN_ON((sector & (((sector_t)1 << (bc->block_shift - SECTOR_SHIFT)) - 1))
+ != 0);
+ return sector >> (bc->block_shift - SECTOR_SHIFT);
+}
+
+static int copy_data(struct bow_context const *bc,
+ struct bow_range *source, struct bow_range *dest,
+ u32 *checksum)
+{
+ int i;
+
+ if (range_size(source) != range_size(dest)) {
+ WARN_ON(1);
+ return BLK_STS_IOERR;
+ }
+
+ if (checksum)
+ *checksum = sector_to_page(bc, source->sector);
+
+ for (i = 0; i < range_size(source) >> bc->block_shift; ++i) {
+ struct dm_buffer *read_buffer, *write_buffer;
+ u8 *read, *write;
+ sector_t page = sector_to_page(bc, source->sector) + i;
+
+ read = dm_bufio_read(bc->bufio, page, &read_buffer);
+ if (IS_ERR(read)) {
+ DMERR("Cannot read page %llu",
+ (unsigned long long)page);
+ return PTR_ERR(read);
+ }
+
+ if (checksum)
+ *checksum = crc32(*checksum, read, bc->block_size);
+
+ write = dm_bufio_new(bc->bufio,
+ sector_to_page(bc, dest->sector) + i,
+ &write_buffer);
+ if (IS_ERR(write)) {
+ DMERR("Cannot write sector");
+ dm_bufio_release(read_buffer);
+ return PTR_ERR(write);
+ }
+
+ memcpy(write, read, bc->block_size);
+
+ dm_bufio_mark_buffer_dirty(write_buffer);
+ dm_bufio_release(write_buffer);
+ dm_bufio_release(read_buffer);
+ }
+
+ dm_bufio_write_dirty_buffers(bc->bufio);
+ return BLK_STS_OK;
+}
+
+/****** logging functions ******/
+
+static int add_log_entry(struct bow_context *bc, sector_t source, sector_t dest,
+ unsigned int size, u32 checksum);
+
+static int backup_log_sector(struct bow_context *bc)
+{
+ struct bow_range *first_br, *free_br;
+ struct bvec_iter bi_iter;
+ u32 checksum = 0;
+ int ret;
+
+ first_br = container_of(rb_first(&bc->ranges), struct bow_range, node);
+
+ if (first_br->type != SECTOR0) {
+ WARN_ON(1);
+ return BLK_STS_IOERR;
+ }
+
+ if (range_size(first_br) != bc->block_size) {
+ WARN_ON(1);
+ return BLK_STS_IOERR;
+ }
+
+ free_br = find_free_range(bc);
+ /* No space left - return this error to userspace */
+ if (!free_br)
+ return BLK_STS_NOSPC;
+ bi_iter.bi_sector = free_br->sector;
+ bi_iter.bi_size = bc->block_size;
+ ret = split_range(bc, &free_br, &bi_iter);
+ if (ret)
+ return ret;
+ if (bi_iter.bi_size != bc->block_size) {
+ WARN_ON(1);
+ return BLK_STS_IOERR;
+ }
+
+ ret = copy_data(bc, first_br, free_br, &checksum);
+ if (ret)
+ return ret;
+
+ bc->log_sector->count = 0;
+ bc->log_sector->sequence++;
+ ret = add_log_entry(bc, first_br->sector, free_br->sector,
+ range_size(first_br), checksum);
+ if (ret)
+ return ret;
+
+ set_type(bc, &free_br, BACKUP);
+ return BLK_STS_OK;
+}
+
+static int add_log_entry(struct bow_context *bc, sector_t source, sector_t dest,
+ unsigned int size, u32 checksum)
+{
+ struct dm_buffer *sector_buffer;
+ u8 *sector;
+
+ if (sizeof(struct log_sector)
+ + sizeof(struct log_entry) * (bc->log_sector->count + 1)
+ > bc->block_size) {
+ int ret = backup_log_sector(bc);
+
+ if (ret)
+ return ret;
+ }
+
+ sector = dm_bufio_new(bc->bufio, 0, §or_buffer);
+ if (IS_ERR(sector)) {
+ DMERR("Cannot write boot sector");
+ dm_bufio_release(sector_buffer);
+ return BLK_STS_NOSPC;
+ }
+
+ bc->log_sector->entries[bc->log_sector->count].source = source;
+ bc->log_sector->entries[bc->log_sector->count].dest = dest;
+ bc->log_sector->entries[bc->log_sector->count].size = size;
+ bc->log_sector->entries[bc->log_sector->count].checksum = checksum;
+ bc->log_sector->count++;
+
+ memcpy(sector, bc->log_sector, bc->block_size);
+ dm_bufio_mark_buffer_dirty(sector_buffer);
+ dm_bufio_release(sector_buffer);
+ dm_bufio_write_dirty_buffers(bc->bufio);
+ return BLK_STS_OK;
+}
+
+static int prepare_log(struct bow_context *bc)
+{
+ struct bow_range *free_br, *first_br;
+ struct bvec_iter bi_iter;
+ u32 checksum = 0;
+ int ret;
+
+ /* Carve out first sector as log sector */
+ first_br = container_of(rb_first(&bc->ranges), struct bow_range, node);
+ if (first_br->type != UNCHANGED) {
+ WARN_ON(1);
+ return BLK_STS_IOERR;
+ }
+
+ if (range_size(first_br) < bc->block_size) {
+ WARN_ON(1);
+ return BLK_STS_IOERR;
+ }
+ bi_iter.bi_sector = 0;
+ bi_iter.bi_size = bc->block_size;
+ ret = split_range(bc, &first_br, &bi_iter);
+ if (ret)
+ return ret;
+ first_br->type = SECTOR0;
+ if (range_size(first_br) != bc->block_size) {
+ WARN_ON(1);
+ return BLK_STS_IOERR;
+ }
+
+ /* Find free sector for active sector0 reads/writes */
+ free_br = find_free_range(bc);
+ if (!free_br)
+ return BLK_STS_NOSPC;
+ bi_iter.bi_sector = free_br->sector;
+ bi_iter.bi_size = bc->block_size;
+ ret = split_range(bc, &free_br, &bi_iter);
+ if (ret)
+ return ret;
+ free_br->type = SECTOR0_CURRENT;
+
+ /* Copy data */
+ ret = copy_data(bc, first_br, free_br, NULL);
+ if (ret)
+ return ret;
+
+ bc->log_sector->sector0 = free_br->sector;
+
+ /* Find free sector to back up original sector zero */
+ free_br = find_free_range(bc);
+ if (!free_br)
+ return BLK_STS_NOSPC;
+ bi_iter.bi_sector = free_br->sector;
+ bi_iter.bi_size = bc->block_size;
+ ret = split_range(bc, &free_br, &bi_iter);
+ if (ret)
+ return ret;
+
+ /* Back up */
+ ret = copy_data(bc, first_br, free_br, &checksum);
+ if (ret)
+ return ret;
+
+ /*
+ * Set up our replacement boot sector - it will get written when we
+ * add the first log entry, which we do immediately
+ */
+ bc->log_sector->magic = MAGIC;
+ bc->log_sector->header_version = HEADER_VERSION;
+ bc->log_sector->header_size = sizeof(*bc->log_sector);
+ bc->log_sector->block_size = bc->block_size;
+ bc->log_sector->count = 0;
+ bc->log_sector->sequence = 0;
+
+ /* Add log entry */
+ ret = add_log_entry(bc, first_br->sector, free_br->sector,
+ range_size(first_br), checksum);
+ if (ret)
+ return ret;
+
+ set_type(bc, &free_br, BACKUP);
+ return BLK_STS_OK;
+}
+
+static struct bow_range *find_sector0_current(struct bow_context *bc)
+{
+ struct bvec_iter bi_iter;
+
+ bi_iter.bi_sector = bc->log_sector->sector0;
+ bi_iter.bi_size = bc->block_size;
+ return find_first_overlapping_range(&bc->ranges, &bi_iter);
+}
+
+/****** sysfs interface functions ******/
+
+static ssize_t state_show(struct kobject *kobj, struct kobj_attribute *attr,
+ char *buf)
+{
+ struct bow_context *bc = container_of(kobj, struct bow_context,
+ kobj_holder.kobj);
+
+ return scnprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&bc->state));
+}
+
+static ssize_t state_store(struct kobject *kobj, struct kobj_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct bow_context *bc = container_of(kobj, struct bow_context,
+ kobj_holder.kobj);
+ enum state state, original_state;
+ int ret;
+
+ state = buf[0] - '0';
+ if (state < TRIM || state > COMMITTED) {
+ DMERR("State value %d out of range", state);
+ return -EINVAL;
+ }
+
+ mutex_lock(&bc->ranges_lock);
+ original_state = atomic_read(&bc->state);
+ if (state != original_state + 1) {
+ DMERR("Invalid state change from %d to %d",
+ original_state, state);
+ ret = -EINVAL;
+ goto bad;
+ }
+
+ DMINFO("Switching to state %s", state == CHECKPOINT ? "Checkpoint"
+ : state == COMMITTED ? "Committed" : "Unknown");
+
+ if (state == CHECKPOINT) {
+ ret = prepare_log(bc);
+ if (ret) {
+ DMERR("Failed to switch to checkpoint state");
+ goto bad;
+ }
+ } else if (state == COMMITTED) {
+ struct bow_range *br = find_sector0_current(bc);
+ struct bow_range *sector0_br =
+ container_of(rb_first(&bc->ranges), struct bow_range,
+ node);
+
+ ret = copy_data(bc, br, sector0_br, 0);
+ if (ret) {
+ DMERR("Failed to switch to committed state");
+ goto bad;
+ }
+ }
+ atomic_inc(&bc->state);
+ ret = count;
+
+bad:
+ mutex_unlock(&bc->ranges_lock);
+ return ret;
+}
+
+static ssize_t free_show(struct kobject *kobj, struct kobj_attribute *attr,
+ char *buf)
+{
+ struct bow_context *bc = container_of(kobj, struct bow_context,
+ kobj_holder.kobj);
+ u64 trims_total;
+
+ mutex_lock(&bc->ranges_lock);
+ trims_total = bc->trims_total;
+ mutex_unlock(&bc->ranges_lock);
+
+ return scnprintf(buf, PAGE_SIZE, "%llu\n", trims_total);
+}
+
+static struct kobj_attribute attr_state = __ATTR_RW(state);
+static struct kobj_attribute attr_free = __ATTR_RO(free);
+
+static struct attribute *bow_attrs[] = {
+ &attr_state.attr,
+ &attr_free.attr,
+ NULL
+};
+
+static struct kobj_type bow_ktype = {
+ .sysfs_ops = &kobj_sysfs_ops,
+ .default_attrs = bow_attrs,
+ .release = dm_kobject_release
+};
+
+/****** constructor/destructor ******/
+
+static void dm_bow_dtr(struct dm_target *ti)
+{
+ struct bow_context *bc = (struct bow_context *) ti->private;
+ struct kobject *kobj;
+
+ while (rb_first(&bc->ranges)) {
+ struct bow_range *br = container_of(rb_first(&bc->ranges),
+ struct bow_range, node);
+
+ rb_erase(&br->node, &bc->ranges);
+ kfree(br);
+ }
+ if (bc->workqueue)
+ destroy_workqueue(bc->workqueue);
+ if (bc->bufio)
+ dm_bufio_client_destroy(bc->bufio);
+
+ kobj = &bc->kobj_holder.kobj;
+ if (kobj->state_initialized) {
+ kobject_put(kobj);
+ wait_for_completion(dm_get_completion_from_kobject(kobj));
+ }
+
+ kfree(bc->log_sector);
+ kfree(bc);
+}
+
+static void dm_bow_io_hints(struct dm_target *ti, struct queue_limits *limits)
+{
+ struct bow_context *bc = ti->private;
+ const unsigned int block_size = bc->block_size;
+
+ limits->logical_block_size =
+ max_t(unsigned short, limits->logical_block_size, block_size);
+ limits->physical_block_size =
+ max_t(unsigned int, limits->physical_block_size, block_size);
+ limits->io_min = max_t(unsigned int, limits->io_min, block_size);
+
+ if (limits->max_discard_sectors == 0) {
+ limits->discard_granularity = 1 << 12;
+ limits->max_hw_discard_sectors = 1 << 15;
+ limits->max_discard_sectors = 1 << 15;
+ bc->forward_trims = false;
+ } else {
+ limits->discard_granularity = 1 << 12;
+ bc->forward_trims = true;
+ }
+}
+
+static int dm_bow_ctr_optional(struct dm_target *ti, unsigned int argc,
+ char **argv)
+{
+ struct bow_context *bc = ti->private;
+ struct dm_arg_set as;
+ static const struct dm_arg _args[] = {
+ {0, 1, "Invalid number of feature args"},
+ };
+ unsigned int opt_params;
+ const char *opt_string;
+ int err;
+ char dummy;
+
+ as.argc = argc;
+ as.argv = argv;
+
+ err = dm_read_arg_group(_args, &as, &opt_params, &ti->error);
+ if (err)
+ return err;
+
+ while (opt_params--) {
+ opt_string = dm_shift_arg(&as);
+ if (!opt_string) {
+ ti->error = "Not enough feature arguments";
+ return -EINVAL;
+ }
+
+ if (sscanf(opt_string, "block_size:%u%c",
+ &bc->block_size, &dummy) == 1) {
+ if (bc->block_size < SECTOR_SIZE ||
+ bc->block_size > 4096 ||
+ !is_power_of_2(bc->block_size)) {
+ ti->error = "Invalid block_size";
+ return -EINVAL;
+ }
+ } else {
+ ti->error = "Invalid feature arguments";
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+static int dm_bow_ctr(struct dm_target *ti, unsigned int argc, char **argv)
+{
+ struct bow_context *bc;
+ struct bow_range *br;
+ int ret;
+ struct mapped_device *md = dm_table_get_md(ti->table);
+
+ if (argc < 1) {
+ ti->error = "Invalid argument count";
+ return -EINVAL;
+ }
+
+ bc = kzalloc(sizeof(*bc), GFP_KERNEL);
+ if (!bc) {
+ ti->error = "Cannot allocate bow context";
+ return -ENOMEM;
+ }
+
+ ti->num_flush_bios = 1;
+ ti->num_discard_bios = 1;
+ ti->num_write_same_bios = 1;
+ ti->private = bc;
+
+ ret = dm_get_device(ti, argv[0], dm_table_get_mode(ti->table),
+ &bc->dev);
+ if (ret) {
+ ti->error = "Device lookup failed";
+ goto bad;
+ }
+
+ bc->block_size = bc->dev->bdev->bd_queue->limits.logical_block_size;
+ if (argc > 1) {
+ ret = dm_bow_ctr_optional(ti, argc - 1, &argv[1]);
+ if (ret)
+ goto bad;
+ }
+
+ bc->block_shift = ilog2(bc->block_size);
+ bc->log_sector = kzalloc(bc->block_size, GFP_KERNEL);
+ if (!bc->log_sector) {
+ ti->error = "Cannot allocate log sector";
+ goto bad;
+ }
+
+ init_completion(&bc->kobj_holder.completion);
+ ret = kobject_init_and_add(&bc->kobj_holder.kobj, &bow_ktype,
+ &disk_to_dev(dm_disk(md))->kobj, "%s",
+ "bow");
+ if (ret) {
+ ti->error = "Cannot create sysfs node";
+ goto bad;
+ }
+
+ mutex_init(&bc->ranges_lock);
+ bc->ranges = RB_ROOT;
+ bc->bufio = dm_bufio_client_create(bc->dev->bdev, bc->block_size, 1, 0,
+ NULL, NULL);
+ if (IS_ERR(bc->bufio)) {
+ ti->error = "Cannot initialize dm-bufio";
+ ret = PTR_ERR(bc->bufio);
+ bc->bufio = NULL;
+ goto bad;
+ }
+
+ bc->workqueue = alloc_workqueue("dm-bow",
+ WQ_CPU_INTENSIVE | WQ_MEM_RECLAIM
+ | WQ_UNBOUND, num_online_cpus());
+ if (!bc->workqueue) {
+ ti->error = "Cannot allocate workqueue";
+ ret = -ENOMEM;
+ goto bad;
+ }
+
+ INIT_LIST_HEAD(&bc->trimmed_list);
+
+ br = kzalloc(sizeof(*br), GFP_KERNEL);
+ if (!br) {
+ ti->error = "Cannot allocate ranges";
+ ret = -ENOMEM;
+ goto bad;
+ }
+
+ br->sector = ti->len;
+ br->type = TOP;
+ rb_link_node(&br->node, NULL, &bc->ranges.rb_node);
+ rb_insert_color(&br->node, &bc->ranges);
+
+ br = kzalloc(sizeof(*br), GFP_KERNEL);
+ if (!br) {
+ ti->error = "Cannot allocate ranges";
+ ret = -ENOMEM;
+ goto bad;
+ }
+
+ br->sector = 0;
+ br->type = UNCHANGED;
+ rb_link_node(&br->node, bc->ranges.rb_node,
+ &bc->ranges.rb_node->rb_left);
+ rb_insert_color(&br->node, &bc->ranges);
+
+ ti->discards_supported = true;
+ ti->may_passthrough_inline_crypto = true;
+
+ return 0;
+
+bad:
+ dm_bow_dtr(ti);
+ return ret;
+}
+
+/****** Handle writes ******/
+
+static int prepare_unchanged_range(struct bow_context *bc, struct bow_range *br,
+ struct bvec_iter *bi_iter,
+ bool record_checksum)
+{
+ struct bow_range *backup_br;
+ struct bvec_iter backup_bi;
+ sector_t log_source, log_dest;
+ unsigned int log_size;
+ u32 checksum = 0;
+ int ret;
+ int original_type;
+ sector_t sector0;
+
+ /* Find a free range */
+ backup_br = find_free_range(bc);
+ if (!backup_br)
+ return BLK_STS_NOSPC;
+
+ /* Carve out a backup range. This may be smaller than the br given */
+ backup_bi.bi_sector = backup_br->sector;
+ backup_bi.bi_size = min(range_size(backup_br), (u64) bi_iter->bi_size);
+ ret = split_range(bc, &backup_br, &backup_bi);
+ if (ret)
+ return ret;
+
+ /*
+ * Carve out a changed range. This will not be smaller than the backup
+ * br since the backup br is smaller than the source range and iterator
+ */
+ bi_iter->bi_size = backup_bi.bi_size;
+ ret = split_range(bc, &br, bi_iter);
+ if (ret)
+ return ret;
+ if (range_size(br) != range_size(backup_br)) {
+ WARN_ON(1);
+ return BLK_STS_IOERR;
+ }
+
+
+ /* Copy data over */
+ ret = copy_data(bc, br, backup_br, record_checksum ? &checksum : NULL);
+ if (ret)
+ return ret;
+
+ /* Add an entry to the log */
+ log_source = br->sector;
+ log_dest = backup_br->sector;
+ log_size = range_size(br);
+
+ /*
+ * Set the types. Note that since set_type also amalgamates ranges
+ * we have to set both sectors to their final type before calling
+ * set_type on either
+ */
+ original_type = br->type;
+ sector0 = backup_br->sector;
+ bc->trims_total -= range_size(backup_br);
+ if (backup_br->type == TRIMMED)
+ list_del(&backup_br->trimmed_list);
+ backup_br->type = br->type == SECTOR0_CURRENT ? SECTOR0_CURRENT
+ : BACKUP;
+ br->type = CHANGED;
+ set_type(bc, &backup_br, backup_br->type);
+
+ /*
+ * Add the log entry after marking the backup sector, since adding a log
+ * can cause another backup
+ */
+ ret = add_log_entry(bc, log_source, log_dest, log_size, checksum);
+ if (ret) {
+ br->type = original_type;
+ return ret;
+ }
+
+ /* Now it is safe to mark this backup successful */
+ if (original_type == SECTOR0_CURRENT)
+ bc->log_sector->sector0 = sector0;
+
+ set_type(bc, &br, br->type);
+ return ret;
+}
+
+static int prepare_free_range(struct bow_context *bc, struct bow_range *br,
+ struct bvec_iter *bi_iter)
+{
+ int ret;
+
+ ret = split_range(bc, &br, bi_iter);
+ if (ret)
+ return ret;
+ set_type(bc, &br, CHANGED);
+ return BLK_STS_OK;
+}
+
+static int prepare_changed_range(struct bow_context *bc, struct bow_range *br,
+ struct bvec_iter *bi_iter)
+{
+ /* Nothing to do ... */
+ return BLK_STS_OK;
+}
+
+static int prepare_one_range(struct bow_context *bc,
+ struct bvec_iter *bi_iter)
+{
+ struct bow_range *br = find_first_overlapping_range(&bc->ranges,
+ bi_iter);
+ switch (br->type) {
+ case CHANGED:
+ return prepare_changed_range(bc, br, bi_iter);
+
+ case TRIMMED:
+ return prepare_free_range(bc, br, bi_iter);
+
+ case UNCHANGED:
+ case BACKUP:
+ return prepare_unchanged_range(bc, br, bi_iter, true);
+
+ /*
+ * We cannot track the checksum for the active sector0, since it
+ * may change at any point.
+ */
+ case SECTOR0_CURRENT:
+ return prepare_unchanged_range(bc, br, bi_iter, false);
+
+ case SECTOR0: /* Handled in the dm_bow_map */
+ case TOP: /* Illegal - top is off the end of the device */
+ default:
+ WARN_ON(1);
+ return BLK_STS_IOERR;
+ }
+}
+
+struct write_work {
+ struct work_struct work;
+ struct bow_context *bc;
+ struct bio *bio;
+};
+
+static void bow_write(struct work_struct *work)
+{
+ struct write_work *ww = container_of(work, struct write_work, work);
+ struct bow_context *bc = ww->bc;
+ struct bio *bio = ww->bio;
+ struct bvec_iter bi_iter = bio->bi_iter;
+ int ret = BLK_STS_OK;
+
+ kfree(ww);
+
+ mutex_lock(&bc->ranges_lock);
+ do {
+ ret = prepare_one_range(bc, &bi_iter);
+ bi_iter.bi_sector += bi_iter.bi_size / SECTOR_SIZE;
+ bi_iter.bi_size = bio->bi_iter.bi_size
+ - (bi_iter.bi_sector - bio->bi_iter.bi_sector)
+ * SECTOR_SIZE;
+ } while (!ret && bi_iter.bi_size);
+
+ mutex_unlock(&bc->ranges_lock);
+
+ if (!ret) {
+ bio_set_dev(bio, bc->dev->bdev);
+ submit_bio(bio);
+ } else {
+ DMERR("Write failure with error %d", -ret);
+ bio->bi_status = ret;
+ bio_endio(bio);
+ }
+}
+
+static int queue_write(struct bow_context *bc, struct bio *bio)
+{
+ struct write_work *ww = kmalloc(sizeof(*ww), GFP_NOIO | __GFP_NORETRY
+ | __GFP_NOMEMALLOC | __GFP_NOWARN);
+ if (!ww) {
+ DMERR("Failed to allocate write_work");
+ return -ENOMEM;
+ }
+
+ INIT_WORK(&ww->work, bow_write);
+ ww->bc = bc;
+ ww->bio = bio;
+ queue_work(bc->workqueue, &ww->work);
+ return DM_MAPIO_SUBMITTED;
+}
+
+static int handle_sector0(struct bow_context *bc, struct bio *bio)
+{
+ int ret = DM_MAPIO_REMAPPED;
+
+ if (bio->bi_iter.bi_size > bc->block_size) {
+ struct bio * split = bio_split(bio,
+ bc->block_size >> SECTOR_SHIFT,
+ GFP_NOIO,
+ &fs_bio_set);
+ if (!split) {
+ DMERR("Failed to split bio");
+ bio->bi_status = BLK_STS_RESOURCE;
+ bio_endio(bio);
+ return DM_MAPIO_SUBMITTED;
+ }
+
+ bio_chain(split, bio);
+ split->bi_iter.bi_sector = bc->log_sector->sector0;
+ bio_set_dev(split, bc->dev->bdev);
+ submit_bio(split);
+
+ if (bio_data_dir(bio) == WRITE)
+ ret = queue_write(bc, bio);
+ } else {
+ bio->bi_iter.bi_sector = bc->log_sector->sector0;
+ }
+
+ return ret;
+}
+
+static int add_trim(struct bow_context *bc, struct bio *bio)
+{
+ struct bow_range *br;
+ struct bvec_iter bi_iter = bio->bi_iter;
+
+ DMDEBUG("add_trim: %llu, %u",
+ (unsigned long long)bio->bi_iter.bi_sector,
+ bio->bi_iter.bi_size);
+
+ do {
+ br = find_first_overlapping_range(&bc->ranges, &bi_iter);
+
+ switch (br->type) {
+ case UNCHANGED:
+ if (!split_range(bc, &br, &bi_iter))
+ set_type(bc, &br, TRIMMED);
+ break;
+
+ case TRIMMED:
+ /* Nothing to do */
+ break;
+
+ default:
+ /* No other case is legal in TRIM state */
+ WARN_ON(true);
+ break;
+ }
+
+ bi_iter.bi_sector += bi_iter.bi_size / SECTOR_SIZE;
+ bi_iter.bi_size = bio->bi_iter.bi_size
+ - (bi_iter.bi_sector - bio->bi_iter.bi_sector)
+ * SECTOR_SIZE;
+
+ } while (bi_iter.bi_size);
+
+ bio_endio(bio);
+ return DM_MAPIO_SUBMITTED;
+}
+
+static int remove_trim(struct bow_context *bc, struct bio *bio)
+{
+ struct bow_range *br;
+ struct bvec_iter bi_iter = bio->bi_iter;
+
+ DMDEBUG("remove_trim: %llu, %u",
+ (unsigned long long)bio->bi_iter.bi_sector,
+ bio->bi_iter.bi_size);
+
+ do {
+ br = find_first_overlapping_range(&bc->ranges, &bi_iter);
+
+ switch (br->type) {
+ case UNCHANGED:
+ /* Nothing to do */
+ break;
+
+ case TRIMMED:
+ if (!split_range(bc, &br, &bi_iter))
+ set_type(bc, &br, UNCHANGED);
+ break;
+
+ default:
+ /* No other case is legal in TRIM state */
+ WARN_ON(true);
+ break;
+ }
+
+ bi_iter.bi_sector += bi_iter.bi_size / SECTOR_SIZE;
+ bi_iter.bi_size = bio->bi_iter.bi_size
+ - (bi_iter.bi_sector - bio->bi_iter.bi_sector)
+ * SECTOR_SIZE;
+
+ } while (bi_iter.bi_size);
+
+ return DM_MAPIO_REMAPPED;
+}
+
+int remap_unless_illegal_trim(struct bow_context *bc, struct bio *bio)
+{
+ if (!bc->forward_trims && bio_op(bio) == REQ_OP_DISCARD) {
+ bio->bi_status = BLK_STS_NOTSUPP;
+ bio_endio(bio);
+ return DM_MAPIO_SUBMITTED;
+ } else {
+ bio_set_dev(bio, bc->dev->bdev);
+ return DM_MAPIO_REMAPPED;
+ }
+}
+
+/****** dm interface ******/
+
+static int dm_bow_map(struct dm_target *ti, struct bio *bio)
+{
+ int ret = DM_MAPIO_REMAPPED;
+ struct bow_context *bc = ti->private;
+
+ if (likely(bc->state.counter == COMMITTED))
+ return remap_unless_illegal_trim(bc, bio);
+
+ if (bio_data_dir(bio) == READ && bio->bi_iter.bi_sector != 0)
+ return remap_unless_illegal_trim(bc, bio);
+
+ if (atomic_read(&bc->state) != COMMITTED) {
+ enum state state;
+
+ mutex_lock(&bc->ranges_lock);
+ state = atomic_read(&bc->state);
+ if (state == TRIM) {
+ if (bio_op(bio) == REQ_OP_DISCARD)
+ ret = add_trim(bc, bio);
+ else if (bio_data_dir(bio) == WRITE)
+ ret = remove_trim(bc, bio);
+ else
+ /* pass-through */;
+ } else if (state == CHECKPOINT) {
+ if (bio->bi_iter.bi_sector == 0)
+ ret = handle_sector0(bc, bio);
+ else if (bio_data_dir(bio) == WRITE)
+ ret = queue_write(bc, bio);
+ else
+ /* pass-through */;
+ } else {
+ /* pass-through */
+ }
+ mutex_unlock(&bc->ranges_lock);
+ }
+
+ if (ret == DM_MAPIO_REMAPPED)
+ return remap_unless_illegal_trim(bc, bio);
+
+ return ret;
+}
+
+static void dm_bow_tablestatus(struct dm_target *ti, char *result,
+ unsigned int maxlen)
+{
+ char *end = result + maxlen;
+ struct bow_context *bc = ti->private;
+ struct rb_node *i;
+ int trimmed_list_length = 0;
+ int trimmed_range_count = 0;
+ struct bow_range *br;
+
+ if (maxlen == 0)
+ return;
+ result[0] = 0;
+
+ list_for_each_entry(br, &bc->trimmed_list, trimmed_list)
+ if (br->type == TRIMMED) {
+ ++trimmed_list_length;
+ } else {
+ scnprintf(result, end - result,
+ "ERROR: non-trimmed entry in trimmed_list");
+ return;
+ }
+
+ if (!rb_first(&bc->ranges)) {
+ scnprintf(result, end - result, "ERROR: Empty ranges");
+ return;
+ }
+
+ if (container_of(rb_first(&bc->ranges), struct bow_range, node)
+ ->sector) {
+ scnprintf(result, end - result,
+ "ERROR: First range does not start at sector 0");
+ return;
+ }
+
+ for (i = rb_first(&bc->ranges); i; i = rb_next(i)) {
+ struct bow_range *br = container_of(i, struct bow_range, node);
+
+ result += scnprintf(result, end - result, "%s: %llu",
+ readable_type[br->type],
+ (unsigned long long)br->sector);
+ if (result >= end)
+ return;
+
+ result += scnprintf(result, end - result, "\n");
+ if (result >= end)
+ return;
+
+ if (br->type == TRIMMED)
+ ++trimmed_range_count;
+
+ if (br->type == TOP) {
+ if (br->sector != ti->len) {
+ scnprintf(result, end - result,
+ "\nERROR: Top sector is incorrect");
+ }
+
+ if (&br->node != rb_last(&bc->ranges)) {
+ scnprintf(result, end - result,
+ "\nERROR: Top sector is not last");
+ }
+
+ break;
+ }
+
+ if (!rb_next(i)) {
+ scnprintf(result, end - result,
+ "\nERROR: Last range not of type TOP");
+ return;
+ }
+
+ if (br->sector > range_top(br)) {
+ scnprintf(result, end - result,
+ "\nERROR: sectors out of order");
+ return;
+ }
+ }
+
+ if (trimmed_range_count != trimmed_list_length)
+ scnprintf(result, end - result,
+ "\nERROR: not all trimmed ranges in trimmed list");
+}
+
+static void dm_bow_status(struct dm_target *ti, status_type_t type,
+ unsigned int status_flags, char *result,
+ unsigned int maxlen)
+{
+ switch (type) {
+ case STATUSTYPE_INFO:
+ if (maxlen)
+ result[0] = 0;
+ break;
+
+ case STATUSTYPE_TABLE:
+ dm_bow_tablestatus(ti, result, maxlen);
+ break;
+ }
+}
+
+int dm_bow_prepare_ioctl(struct dm_target *ti, struct block_device **bdev)
+{
+ struct bow_context *bc = ti->private;
+ struct dm_dev *dev = bc->dev;
+
+ *bdev = dev->bdev;
+ /* Only pass ioctls through if the device sizes match exactly. */
+ return ti->len != i_size_read(dev->bdev->bd_inode) >> SECTOR_SHIFT;
+}
+
+static int dm_bow_iterate_devices(struct dm_target *ti,
+ iterate_devices_callout_fn fn, void *data)
+{
+ struct bow_context *bc = ti->private;
+
+ return fn(ti, bc->dev, 0, ti->len, data);
+}
+
+static struct target_type bow_target = {
+ .name = "bow",
+ .version = {1, 2, 0},
+ .module = THIS_MODULE,
+ .ctr = dm_bow_ctr,
+ .dtr = dm_bow_dtr,
+ .map = dm_bow_map,
+ .status = dm_bow_status,
+ .prepare_ioctl = dm_bow_prepare_ioctl,
+ .iterate_devices = dm_bow_iterate_devices,
+ .io_hints = dm_bow_io_hints,
+};
+
+int __init dm_bow_init(void)
+{
+ int r = dm_register_target(&bow_target);
+
+ if (r < 0)
+ DMERR("registering bow failed %d", r);
+ return r;
+}
+
+void dm_bow_exit(void)
+{
+ dm_unregister_target(&bow_target);
+}
+
+MODULE_LICENSE("GPL");
+
+module_init(dm_bow_init);
+module_exit(dm_bow_exit);
diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c
index b3b799f..eb5a19f 100644
--- a/drivers/md/dm-bufio.c
+++ b/drivers/md/dm-bufio.c
@@ -33,7 +33,8 @@
#define DM_BUFIO_MEMORY_PERCENT 2
#define DM_BUFIO_VMALLOC_PERCENT 25
-#define DM_BUFIO_WRITEBACK_PERCENT 75
+#define DM_BUFIO_WRITEBACK_RATIO 3
+#define DM_BUFIO_LOW_WATERMARK_RATIO 16
/*
* Check buffer ages in this interval (seconds)
@@ -132,12 +133,14 @@ enum data_mode {
struct dm_buffer {
struct rb_node node;
struct list_head lru_list;
+ struct list_head global_list;
sector_t block;
void *data;
unsigned char data_mode; /* DATA_MODE_* */
unsigned char list_mode; /* LIST_* */
blk_status_t read_error;
blk_status_t write_error;
+ unsigned accessed;
unsigned hold_count;
unsigned long state;
unsigned long last_accessed;
@@ -192,7 +195,11 @@ static unsigned long dm_bufio_cache_size;
*/
static unsigned long dm_bufio_cache_size_latch;
-static DEFINE_SPINLOCK(param_spinlock);
+static DEFINE_SPINLOCK(global_spinlock);
+
+static LIST_HEAD(global_queue);
+
+static unsigned long global_num = 0;
/*
* Buffers are freed after this timeout
@@ -209,11 +216,6 @@ static unsigned long dm_bufio_current_allocated;
/*----------------------------------------------------------------*/
/*
- * Per-client cache: dm_bufio_cache_size / dm_bufio_client_count
- */
-static unsigned long dm_bufio_cache_size_per_client;
-
-/*
* The current number of clients.
*/
static int dm_bufio_client_count;
@@ -224,11 +226,15 @@ static int dm_bufio_client_count;
static LIST_HEAD(dm_bufio_all_clients);
/*
- * This mutex protects dm_bufio_cache_size_latch,
- * dm_bufio_cache_size_per_client and dm_bufio_client_count
+ * This mutex protects dm_bufio_cache_size_latch and dm_bufio_client_count
*/
static DEFINE_MUTEX(dm_bufio_clients_lock);
+static struct workqueue_struct *dm_bufio_wq;
+static struct delayed_work dm_bufio_cleanup_old_work;
+static struct work_struct dm_bufio_replacement_work;
+
+
#ifdef CONFIG_DM_DEBUG_BLOCK_STACK_TRACING
static void buffer_record_stack(struct dm_buffer *b)
{
@@ -289,15 +295,23 @@ static void __remove(struct dm_bufio_client *c, struct dm_buffer *b)
/*----------------------------------------------------------------*/
-static void adjust_total_allocated(unsigned char data_mode, long diff)
+static void adjust_total_allocated(struct dm_buffer *b, bool unlink)
{
+ unsigned char data_mode;
+ long diff;
+
static unsigned long * const class_ptr[DATA_MODE_LIMIT] = {
&dm_bufio_allocated_kmem_cache,
&dm_bufio_allocated_get_free_pages,
&dm_bufio_allocated_vmalloc,
};
- spin_lock(¶m_spinlock);
+ data_mode = b->data_mode;
+ diff = (long)b->c->block_size;
+ if (unlink)
+ diff = -diff;
+
+ spin_lock(&global_spinlock);
*class_ptr[data_mode] += diff;
@@ -306,7 +320,19 @@ static void adjust_total_allocated(unsigned char data_mode, long diff)
if (dm_bufio_current_allocated > dm_bufio_peak_allocated)
dm_bufio_peak_allocated = dm_bufio_current_allocated;
- spin_unlock(¶m_spinlock);
+ b->accessed = 1;
+
+ if (!unlink) {
+ list_add(&b->global_list, &global_queue);
+ global_num++;
+ if (dm_bufio_current_allocated > dm_bufio_cache_size)
+ queue_work(dm_bufio_wq, &dm_bufio_replacement_work);
+ } else {
+ list_del(&b->global_list);
+ global_num--;
+ }
+
+ spin_unlock(&global_spinlock);
}
/*
@@ -327,9 +353,6 @@ static void __cache_size_refresh(void)
dm_bufio_default_cache_size);
dm_bufio_cache_size_latch = dm_bufio_default_cache_size;
}
-
- dm_bufio_cache_size_per_client = dm_bufio_cache_size_latch /
- (dm_bufio_client_count ? : 1);
}
/*
@@ -435,8 +458,6 @@ static struct dm_buffer *alloc_buffer(struct dm_bufio_client *c, gfp_t gfp_mask)
return NULL;
}
- adjust_total_allocated(b->data_mode, (long)c->block_size);
-
#ifdef CONFIG_DM_DEBUG_BLOCK_STACK_TRACING
memset(&b->stack_trace, 0, sizeof(b->stack_trace));
#endif
@@ -450,8 +471,6 @@ static void free_buffer(struct dm_buffer *b)
{
struct dm_bufio_client *c = b->c;
- adjust_total_allocated(b->data_mode, -(long)c->block_size);
-
free_buffer_data(c, b->data, b->data_mode);
kmem_cache_free(c->slab_buffer, b);
}
@@ -469,6 +488,8 @@ static void __link_buffer(struct dm_buffer *b, sector_t block, int dirty)
list_add(&b->lru_list, &c->lru[dirty]);
__insert(b->c, b);
b->last_accessed = jiffies;
+
+ adjust_total_allocated(b, false);
}
/*
@@ -483,6 +504,8 @@ static void __unlink_buffer(struct dm_buffer *b)
c->n_buffers[b->list_mode]--;
__remove(b->c, b);
list_del(&b->lru_list);
+
+ adjust_total_allocated(b, true);
}
/*
@@ -492,6 +515,8 @@ static void __relink_lru(struct dm_buffer *b, int dirty)
{
struct dm_bufio_client *c = b->c;
+ b->accessed = 1;
+
BUG_ON(!c->n_buffers[b->list_mode]);
c->n_buffers[b->list_mode]--;
@@ -911,36 +936,6 @@ static void __write_dirty_buffers_async(struct dm_bufio_client *c, int no_wait,
}
/*
- * Get writeback threshold and buffer limit for a given client.
- */
-static void __get_memory_limit(struct dm_bufio_client *c,
- unsigned long *threshold_buffers,
- unsigned long *limit_buffers)
-{
- unsigned long buffers;
-
- if (unlikely(READ_ONCE(dm_bufio_cache_size) != dm_bufio_cache_size_latch)) {
- if (mutex_trylock(&dm_bufio_clients_lock)) {
- __cache_size_refresh();
- mutex_unlock(&dm_bufio_clients_lock);
- }
- }
-
- buffers = dm_bufio_cache_size_per_client;
- if (likely(c->sectors_per_block_bits >= 0))
- buffers >>= c->sectors_per_block_bits + SECTOR_SHIFT;
- else
- buffers /= c->block_size;
-
- if (buffers < c->minimum_buffers)
- buffers = c->minimum_buffers;
-
- *limit_buffers = buffers;
- *threshold_buffers = mult_frac(buffers,
- DM_BUFIO_WRITEBACK_PERCENT, 100);
-}
-
-/*
* Check if we're over watermark.
* If we are over threshold_buffers, start freeing buffers.
* If we're over "limit_buffers", block until we get under the limit.
@@ -948,23 +943,7 @@ static void __get_memory_limit(struct dm_bufio_client *c,
static void __check_watermark(struct dm_bufio_client *c,
struct list_head *write_list)
{
- unsigned long threshold_buffers, limit_buffers;
-
- __get_memory_limit(c, &threshold_buffers, &limit_buffers);
-
- while (c->n_buffers[LIST_CLEAN] + c->n_buffers[LIST_DIRTY] >
- limit_buffers) {
-
- struct dm_buffer *b = __get_unclaimed_buffer(c);
-
- if (!b)
- return;
-
- __free_buffer_wake(b);
- cond_resched();
- }
-
- if (c->n_buffers[LIST_DIRTY] > threshold_buffers)
+ if (c->n_buffers[LIST_DIRTY] > c->n_buffers[LIST_CLEAN] * DM_BUFIO_WRITEBACK_RATIO)
__write_dirty_buffers_async(c, 1, write_list);
}
@@ -1854,6 +1833,74 @@ static void __evict_old_buffers(struct dm_bufio_client *c, unsigned long age_hz)
dm_bufio_unlock(c);
}
+static void do_global_cleanup(struct work_struct *w)
+{
+ struct dm_bufio_client *locked_client = NULL;
+ struct dm_bufio_client *current_client;
+ struct dm_buffer *b;
+ unsigned spinlock_hold_count;
+ unsigned long threshold = dm_bufio_cache_size -
+ dm_bufio_cache_size / DM_BUFIO_LOW_WATERMARK_RATIO;
+ unsigned long loops = global_num * 2;
+
+ mutex_lock(&dm_bufio_clients_lock);
+
+ while (1) {
+ cond_resched();
+
+ spin_lock(&global_spinlock);
+ if (unlikely(dm_bufio_current_allocated <= threshold))
+ break;
+
+ spinlock_hold_count = 0;
+get_next:
+ if (!loops--)
+ break;
+ if (unlikely(list_empty(&global_queue)))
+ break;
+ b = list_entry(global_queue.prev, struct dm_buffer, global_list);
+
+ if (b->accessed) {
+ b->accessed = 0;
+ list_move(&b->global_list, &global_queue);
+ if (likely(++spinlock_hold_count < 16))
+ goto get_next;
+ spin_unlock(&global_spinlock);
+ continue;
+ }
+
+ current_client = b->c;
+ if (unlikely(current_client != locked_client)) {
+ if (locked_client)
+ dm_bufio_unlock(locked_client);
+
+ if (!dm_bufio_trylock(current_client)) {
+ spin_unlock(&global_spinlock);
+ dm_bufio_lock(current_client);
+ locked_client = current_client;
+ continue;
+ }
+
+ locked_client = current_client;
+ }
+
+ spin_unlock(&global_spinlock);
+
+ if (unlikely(!__try_evict_buffer(b, GFP_KERNEL))) {
+ spin_lock(&global_spinlock);
+ list_move(&b->global_list, &global_queue);
+ spin_unlock(&global_spinlock);
+ }
+ }
+
+ spin_unlock(&global_spinlock);
+
+ if (locked_client)
+ dm_bufio_unlock(locked_client);
+
+ mutex_unlock(&dm_bufio_clients_lock);
+}
+
static void cleanup_old_buffers(void)
{
unsigned long max_age_hz = get_max_age_hz();
@@ -1869,14 +1916,11 @@ static void cleanup_old_buffers(void)
mutex_unlock(&dm_bufio_clients_lock);
}
-static struct workqueue_struct *dm_bufio_wq;
-static struct delayed_work dm_bufio_work;
-
static void work_fn(struct work_struct *w)
{
cleanup_old_buffers();
- queue_delayed_work(dm_bufio_wq, &dm_bufio_work,
+ queue_delayed_work(dm_bufio_wq, &dm_bufio_cleanup_old_work,
DM_BUFIO_WORK_TIMER_SECS * HZ);
}
@@ -1918,8 +1962,9 @@ static int __init dm_bufio_init(void)
if (!dm_bufio_wq)
return -ENOMEM;
- INIT_DELAYED_WORK(&dm_bufio_work, work_fn);
- queue_delayed_work(dm_bufio_wq, &dm_bufio_work,
+ INIT_DELAYED_WORK(&dm_bufio_cleanup_old_work, work_fn);
+ INIT_WORK(&dm_bufio_replacement_work, do_global_cleanup);
+ queue_delayed_work(dm_bufio_wq, &dm_bufio_cleanup_old_work,
DM_BUFIO_WORK_TIMER_SECS * HZ);
return 0;
@@ -1932,7 +1977,8 @@ static void __exit dm_bufio_exit(void)
{
int bug = 0;
- cancel_delayed_work_sync(&dm_bufio_work);
+ cancel_delayed_work_sync(&dm_bufio_cleanup_old_work);
+ flush_workqueue(dm_bufio_wq);
destroy_workqueue(dm_bufio_wq);
if (dm_bufio_client_count) {
diff --git a/drivers/md/dm-core.h b/drivers/md/dm-core.h
index 8cda3f7..7e426e4 100644
--- a/drivers/md/dm-core.h
+++ b/drivers/md/dm-core.h
@@ -110,10 +110,6 @@ struct mapped_device {
/* zero-length flush that will be cloned and submitted to targets */
struct bio flush_bio;
- int swap_bios;
- struct semaphore swap_bios_semaphore;
- struct mutex swap_bios_lock;
-
struct dm_stats stats;
struct kthread_worker kworker;
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index a6a26f8..8cd5861 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -1892,6 +1892,13 @@ static int crypt_alloc_tfms_skcipher(struct crypt_config *cc, char *ciphermode)
}
}
+ /*
+ * dm-crypt performance can vary greatly depending on which crypto
+ * algorithm implementation is used. Help people debug performance
+ * problems by logging the ->cra_driver_name.
+ */
+ DMINFO("%s using implementation \"%s\"", ciphermode,
+ crypto_skcipher_alg(any_tfm(cc))->base.cra_driver_name);
return 0;
}
@@ -1910,6 +1917,8 @@ static int crypt_alloc_tfms_aead(struct crypt_config *cc, char *ciphermode)
return err;
}
+ DMINFO("%s using implementation \"%s\"", ciphermode,
+ crypto_aead_alg(any_tfm_aead(cc))->base.cra_driver_name);
return 0;
}
@@ -2857,7 +2866,6 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
wake_up_process(cc->write_thread);
ti->num_flush_bios = 1;
- ti->limit_swap_bios = true;
return 0;
diff --git a/drivers/md/dm-default-key.c b/drivers/md/dm-default-key.c
new file mode 100644
index 0000000..0b10ab3
--- /dev/null
+++ b/drivers/md/dm-default-key.c
@@ -0,0 +1,427 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2017 Google, Inc.
+ */
+
+#include <linux/blk-crypto.h>
+#include <linux/device-mapper.h>
+#include <linux/module.h>
+
+#define DM_MSG_PREFIX "default-key"
+
+#define DM_DEFAULT_KEY_MAX_WRAPPED_KEY_SIZE 128
+
+static const struct dm_default_key_cipher {
+ const char *name;
+ enum blk_crypto_mode_num mode_num;
+ int key_size;
+} dm_default_key_ciphers[] = {
+ {
+ .name = "aes-xts-plain64",
+ .mode_num = BLK_ENCRYPTION_MODE_AES_256_XTS,
+ .key_size = 64,
+ }, {
+ .name = "xchacha12,aes-adiantum-plain64",
+ .mode_num = BLK_ENCRYPTION_MODE_ADIANTUM,
+ .key_size = 32,
+ },
+};
+
+/**
+ * struct dm_default_c - private data of a default-key target
+ * @dev: the underlying device
+ * @start: starting sector of the range of @dev which this target actually maps.
+ * For this purpose a "sector" is 512 bytes.
+ * @cipher_string: the name of the encryption algorithm being used
+ * @iv_offset: starting offset for IVs. IVs are generated as if the target were
+ * preceded by @iv_offset 512-byte sectors.
+ * @sector_size: crypto sector size in bytes (usually 4096)
+ * @sector_bits: log2(sector_size)
+ * @key: the encryption key to use
+ * @max_dun: the maximum DUN that may be used (computed from other params)
+ */
+struct default_key_c {
+ struct dm_dev *dev;
+ sector_t start;
+ const char *cipher_string;
+ u64 iv_offset;
+ unsigned int sector_size;
+ unsigned int sector_bits;
+ struct blk_crypto_key key;
+ bool is_hw_wrapped;
+ u64 max_dun;
+};
+
+static const struct dm_default_key_cipher *
+lookup_cipher(const char *cipher_string)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(dm_default_key_ciphers); i++) {
+ if (strcmp(cipher_string, dm_default_key_ciphers[i].name) == 0)
+ return &dm_default_key_ciphers[i];
+ }
+ return NULL;
+}
+
+static void default_key_dtr(struct dm_target *ti)
+{
+ struct default_key_c *dkc = ti->private;
+ int err;
+
+ if (dkc->dev) {
+ err = blk_crypto_evict_key(dkc->dev->bdev->bd_queue, &dkc->key);
+ if (err && err != -ENOKEY)
+ DMWARN("Failed to evict crypto key: %d", err);
+ dm_put_device(ti, dkc->dev);
+ }
+ kzfree(dkc->cipher_string);
+ kzfree(dkc);
+}
+
+static int default_key_ctr_optional(struct dm_target *ti,
+ unsigned int argc, char **argv)
+{
+ struct default_key_c *dkc = ti->private;
+ struct dm_arg_set as;
+ static const struct dm_arg _args[] = {
+ {0, 4, "Invalid number of feature args"},
+ };
+ unsigned int opt_params;
+ const char *opt_string;
+ bool iv_large_sectors = false;
+ char dummy;
+ int err;
+
+ as.argc = argc;
+ as.argv = argv;
+
+ err = dm_read_arg_group(_args, &as, &opt_params, &ti->error);
+ if (err)
+ return err;
+
+ while (opt_params--) {
+ opt_string = dm_shift_arg(&as);
+ if (!opt_string) {
+ ti->error = "Not enough feature arguments";
+ return -EINVAL;
+ }
+ if (!strcmp(opt_string, "allow_discards")) {
+ ti->num_discard_bios = 1;
+ } else if (sscanf(opt_string, "sector_size:%u%c",
+ &dkc->sector_size, &dummy) == 1) {
+ if (dkc->sector_size < SECTOR_SIZE ||
+ dkc->sector_size > 4096 ||
+ !is_power_of_2(dkc->sector_size)) {
+ ti->error = "Invalid sector_size";
+ return -EINVAL;
+ }
+ } else if (!strcmp(opt_string, "iv_large_sectors")) {
+ iv_large_sectors = true;
+ } else if (!strcmp(opt_string, "wrappedkey_v0")) {
+ dkc->is_hw_wrapped = true;
+ } else {
+ ti->error = "Invalid feature arguments";
+ return -EINVAL;
+ }
+ }
+
+ /* dm-default-key doesn't implement iv_large_sectors=false. */
+ if (dkc->sector_size != SECTOR_SIZE && !iv_large_sectors) {
+ ti->error = "iv_large_sectors must be specified";
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/*
+ * Construct a default-key mapping:
+ * <cipher> <key> <iv_offset> <dev_path> <start>
+ *
+ * This syntax matches dm-crypt's, but lots of unneeded functionality has been
+ * removed. Also, dm-default-key requires that the "iv_large_sectors" option be
+ * given whenever a non-default sector size is used.
+ */
+static int default_key_ctr(struct dm_target *ti, unsigned int argc, char **argv)
+{
+ struct default_key_c *dkc;
+ const struct dm_default_key_cipher *cipher;
+ u8 raw_key[DM_DEFAULT_KEY_MAX_WRAPPED_KEY_SIZE];
+ unsigned int raw_key_size;
+ unsigned int dun_bytes;
+ unsigned long long tmpll;
+ char dummy;
+ int err;
+
+ if (argc < 5) {
+ ti->error = "Not enough arguments";
+ return -EINVAL;
+ }
+
+ dkc = kzalloc(sizeof(*dkc), GFP_KERNEL);
+ if (!dkc) {
+ ti->error = "Out of memory";
+ return -ENOMEM;
+ }
+ ti->private = dkc;
+
+ /* <cipher> */
+ dkc->cipher_string = kstrdup(argv[0], GFP_KERNEL);
+ if (!dkc->cipher_string) {
+ ti->error = "Out of memory";
+ err = -ENOMEM;
+ goto bad;
+ }
+ cipher = lookup_cipher(dkc->cipher_string);
+ if (!cipher) {
+ ti->error = "Unsupported cipher";
+ err = -EINVAL;
+ goto bad;
+ }
+
+ /* <key> */
+ raw_key_size = strlen(argv[1]);
+ if (raw_key_size > 2 * DM_DEFAULT_KEY_MAX_WRAPPED_KEY_SIZE ||
+ raw_key_size % 2) {
+ ti->error = "Invalid keysize";
+ err = -EINVAL;
+ goto bad;
+ }
+ raw_key_size /= 2;
+ if (hex2bin(raw_key, argv[1], raw_key_size) != 0) {
+ ti->error = "Malformed key string";
+ err = -EINVAL;
+ goto bad;
+ }
+
+ /* <iv_offset> */
+ if (sscanf(argv[2], "%llu%c", &dkc->iv_offset, &dummy) != 1) {
+ ti->error = "Invalid iv_offset sector";
+ err = -EINVAL;
+ goto bad;
+ }
+
+ /* <dev_path> */
+ err = dm_get_device(ti, argv[3], dm_table_get_mode(ti->table),
+ &dkc->dev);
+ if (err) {
+ ti->error = "Device lookup failed";
+ goto bad;
+ }
+
+ /* <start> */
+ if (sscanf(argv[4], "%llu%c", &tmpll, &dummy) != 1 ||
+ tmpll != (sector_t)tmpll) {
+ ti->error = "Invalid start sector";
+ err = -EINVAL;
+ goto bad;
+ }
+ dkc->start = tmpll;
+
+ /* optional arguments */
+ dkc->sector_size = SECTOR_SIZE;
+ if (argc > 5) {
+ err = default_key_ctr_optional(ti, argc - 5, &argv[5]);
+ if (err)
+ goto bad;
+ }
+ dkc->sector_bits = ilog2(dkc->sector_size);
+ if (ti->len & ((dkc->sector_size >> SECTOR_SHIFT) - 1)) {
+ ti->error = "Device size is not a multiple of sector_size";
+ err = -EINVAL;
+ goto bad;
+ }
+
+ dkc->max_dun = (dkc->iv_offset + ti->len - 1) >>
+ (dkc->sector_bits - SECTOR_SHIFT);
+ dun_bytes = DIV_ROUND_UP(fls64(dkc->max_dun), 8);
+
+ err = blk_crypto_init_key(&dkc->key, raw_key, raw_key_size,
+ dkc->is_hw_wrapped, cipher->mode_num,
+ dun_bytes, dkc->sector_size);
+ if (err) {
+ ti->error = "Error initializing blk-crypto key";
+ goto bad;
+ }
+
+ err = blk_crypto_start_using_mode(cipher->mode_num, dun_bytes,
+ dkc->sector_size, dkc->is_hw_wrapped,
+ dkc->dev->bdev->bd_queue);
+ if (err) {
+ ti->error = "Error starting to use blk-crypto";
+ goto bad;
+ }
+
+ ti->num_flush_bios = 1;
+
+ ti->may_passthrough_inline_crypto = true;
+
+ err = 0;
+ goto out;
+
+bad:
+ default_key_dtr(ti);
+out:
+ memzero_explicit(raw_key, sizeof(raw_key));
+ return err;
+}
+
+static int default_key_map(struct dm_target *ti, struct bio *bio)
+{
+ const struct default_key_c *dkc = ti->private;
+ sector_t sector_in_target;
+ u64 dun[BLK_CRYPTO_DUN_ARRAY_SIZE] = { 0 };
+
+ bio_set_dev(bio, dkc->dev->bdev);
+
+ /*
+ * If the bio is a device-level request which doesn't target a specific
+ * sector, there's nothing more to do.
+ */
+ if (bio_sectors(bio) == 0)
+ return DM_MAPIO_REMAPPED;
+
+ /* Map the bio's sector to the underlying device. (512-byte sectors) */
+ sector_in_target = dm_target_offset(ti, bio->bi_iter.bi_sector);
+ bio->bi_iter.bi_sector = dkc->start + sector_in_target;
+
+ /*
+ * If the bio should skip dm-default-key (i.e. if it's for an encrypted
+ * file's contents), or if it doesn't have any data (e.g. if it's a
+ * DISCARD request), there's nothing more to do.
+ */
+ if (bio_should_skip_dm_default_key(bio) || !bio_has_data(bio))
+ return DM_MAPIO_REMAPPED;
+
+ /*
+ * Else, dm-default-key needs to set this bio's encryption context.
+ * It must not already have one.
+ */
+ if (WARN_ON_ONCE(bio_has_crypt_ctx(bio)))
+ return DM_MAPIO_KILL;
+
+ /* Calculate the DUN and enforce data-unit (crypto sector) alignment. */
+ dun[0] = dkc->iv_offset + sector_in_target; /* 512-byte sectors */
+ if (dun[0] & ((dkc->sector_size >> SECTOR_SHIFT) - 1))
+ return DM_MAPIO_KILL;
+ dun[0] >>= dkc->sector_bits - SECTOR_SHIFT; /* crypto sectors */
+
+ /*
+ * This check isn't necessary as we should have calculated max_dun
+ * correctly, but be safe.
+ */
+ if (WARN_ON_ONCE(dun[0] > dkc->max_dun))
+ return DM_MAPIO_KILL;
+
+ bio_crypt_set_ctx(bio, &dkc->key, dun, GFP_NOIO);
+
+ return DM_MAPIO_REMAPPED;
+}
+
+static void default_key_status(struct dm_target *ti, status_type_t type,
+ unsigned int status_flags, char *result,
+ unsigned int maxlen)
+{
+ const struct default_key_c *dkc = ti->private;
+ unsigned int sz = 0;
+ int num_feature_args = 0;
+
+ switch (type) {
+ case STATUSTYPE_INFO:
+ result[0] = '\0';
+ break;
+
+ case STATUSTYPE_TABLE:
+ /* Omit the key for now. */
+ DMEMIT("%s - %llu %s %llu", dkc->cipher_string, dkc->iv_offset,
+ dkc->dev->name, (unsigned long long)dkc->start);
+
+ num_feature_args += !!ti->num_discard_bios;
+ if (dkc->sector_size != SECTOR_SIZE)
+ num_feature_args += 2;
+ if (dkc->is_hw_wrapped)
+ num_feature_args += 1;
+ if (num_feature_args != 0) {
+ DMEMIT(" %d", num_feature_args);
+ if (ti->num_discard_bios)
+ DMEMIT(" allow_discards");
+ if (dkc->sector_size != SECTOR_SIZE) {
+ DMEMIT(" sector_size:%u", dkc->sector_size);
+ DMEMIT(" iv_large_sectors");
+ }
+ if (dkc->is_hw_wrapped)
+ DMEMIT(" wrappedkey_v0");
+ }
+ break;
+ }
+}
+
+static int default_key_prepare_ioctl(struct dm_target *ti,
+ struct block_device **bdev)
+{
+ const struct default_key_c *dkc = ti->private;
+ const struct dm_dev *dev = dkc->dev;
+
+ *bdev = dev->bdev;
+
+ /* Only pass ioctls through if the device sizes match exactly. */
+ if (dkc->start != 0 ||
+ ti->len != i_size_read(dev->bdev->bd_inode) >> SECTOR_SHIFT)
+ return 1;
+ return 0;
+}
+
+static int default_key_iterate_devices(struct dm_target *ti,
+ iterate_devices_callout_fn fn,
+ void *data)
+{
+ const struct default_key_c *dkc = ti->private;
+
+ return fn(ti, dkc->dev, dkc->start, ti->len, data);
+}
+
+static void default_key_io_hints(struct dm_target *ti,
+ struct queue_limits *limits)
+{
+ const struct default_key_c *dkc = ti->private;
+ const unsigned int sector_size = dkc->sector_size;
+
+ limits->logical_block_size =
+ max_t(unsigned short, limits->logical_block_size, sector_size);
+ limits->physical_block_size =
+ max_t(unsigned int, limits->physical_block_size, sector_size);
+ limits->io_min = max_t(unsigned int, limits->io_min, sector_size);
+}
+
+static struct target_type default_key_target = {
+ .name = "default-key",
+ .version = {2, 1, 0},
+ .module = THIS_MODULE,
+ .ctr = default_key_ctr,
+ .dtr = default_key_dtr,
+ .map = default_key_map,
+ .status = default_key_status,
+ .prepare_ioctl = default_key_prepare_ioctl,
+ .iterate_devices = default_key_iterate_devices,
+ .io_hints = default_key_io_hints,
+};
+
+static int __init dm_default_key_init(void)
+{
+ return dm_register_target(&default_key_target);
+}
+
+static void __exit dm_default_key_exit(void)
+{
+ dm_unregister_target(&default_key_target);
+}
+
+module_init(dm_default_key_init);
+module_exit(dm_default_key_exit);
+
+MODULE_AUTHOR("Paul Lawrence <paullawrence@google.com>");
+MODULE_AUTHOR("Paul Crowley <paulcrowley@google.com>");
+MODULE_AUTHOR("Eric Biggers <ebiggers@google.com>");
+MODULE_DESCRIPTION(DM_NAME " target for encrypting filesystem metadata");
+MODULE_LICENSE("GPL");
diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c
index caa08c4..cdabe88 100644
--- a/drivers/md/dm-linear.c
+++ b/drivers/md/dm-linear.c
@@ -62,6 +62,7 @@ static int linear_ctr(struct dm_target *ti, unsigned int argc, char **argv)
ti->num_secure_erase_bios = 1;
ti->num_write_same_bios = 1;
ti->num_write_zeroes_bios = 1;
+ ti->may_passthrough_inline_crypto = true;
ti->private = lc;
return 0;
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 71d3fdb..89ed511 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -21,6 +21,8 @@
#include <linux/blk-mq.h>
#include <linux/mount.h>
#include <linux/dax.h>
+#include <linux/bio.h>
+#include <linux/keyslot-manager.h>
#define DM_MSG_PREFIX "table"
@@ -1663,6 +1665,54 @@ static void dm_table_verify_integrity(struct dm_table *t)
}
}
+#ifdef CONFIG_BLK_INLINE_ENCRYPTION
+static int device_intersect_crypto_modes(struct dm_target *ti,
+ struct dm_dev *dev, sector_t start,
+ sector_t len, void *data)
+{
+ struct keyslot_manager *parent = data;
+ struct keyslot_manager *child = bdev_get_queue(dev->bdev)->ksm;
+
+ keyslot_manager_intersect_modes(parent, child);
+ return 0;
+}
+
+/*
+ * Update the inline crypto modes supported by 'q->ksm' to be the intersection
+ * of the modes supported by all targets in the table.
+ *
+ * For any mode to be supported at all, all targets must have explicitly
+ * declared that they can pass through inline crypto support. For a particular
+ * mode to be supported, all underlying devices must also support it.
+ *
+ * Assume that 'q->ksm' initially declares all modes to be supported.
+ */
+static void dm_calculate_supported_crypto_modes(struct dm_table *t,
+ struct request_queue *q)
+{
+ struct dm_target *ti;
+ unsigned int i;
+
+ for (i = 0; i < dm_table_get_num_targets(t); i++) {
+ ti = dm_table_get_target(t, i);
+
+ if (!ti->may_passthrough_inline_crypto) {
+ keyslot_manager_intersect_modes(q->ksm, NULL);
+ return;
+ }
+ if (!ti->type->iterate_devices)
+ continue;
+ ti->type->iterate_devices(ti, device_intersect_crypto_modes,
+ q->ksm);
+ }
+}
+#else /* CONFIG_BLK_INLINE_ENCRYPTION */
+static inline void dm_calculate_supported_crypto_modes(struct dm_table *t,
+ struct request_queue *q)
+{
+}
+#endif /* !CONFIG_BLK_INLINE_ENCRYPTION */
+
static int device_flush_capable(struct dm_target *ti, struct dm_dev *dev,
sector_t start, sector_t len, void *data)
{
@@ -1933,6 +1983,8 @@ void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
dm_table_verify_integrity(t);
+ dm_calculate_supported_crypto_modes(t, q);
+
/*
* Some devices don't use blk_integrity but still want stable pages
* because they do their own checksumming.
@@ -1954,6 +2006,9 @@ void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
if (blk_queue_add_random(q) &&
dm_table_any_dev_attr(t, device_is_not_random, NULL))
blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, q);
+
+ /* io_pages is used for readahead */
+ q->backing_dev_info->io_pages = limits->max_sectors >> (PAGE_SHIFT - 9);
}
unsigned int dm_table_get_num_targets(struct dm_table *t)
diff --git a/drivers/md/dm-user.c b/drivers/md/dm-user.c
new file mode 100644
index 0000000..7593467
--- /dev/null
+++ b/drivers/md/dm-user.c
@@ -0,0 +1,1140 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2020 Google, Inc
+ * Copyright (C) 2020 Palmer Dabbelt <palmerdabbelt@google.com>
+ */
+
+#include <linux/device-mapper.h>
+#include <uapi/linux/dm-user.h>
+
+#include <linux/bio.h>
+#include <linux/init.h>
+#include <linux/mempool.h>
+#include <linux/miscdevice.h>
+#include <linux/module.h>
+#include <linux/poll.h>
+#include <linux/uio.h>
+#include <linux/wait.h>
+
+#define DM_MSG_PREFIX "user"
+
+#define MAX_OUTSTANDING_MESSAGES 128
+
+/*
+ * dm-user uses four structures:
+ *
+ * - "struct target", the outermost structure, corresponds to a single device
+ * mapper target. This contains the set of outstanding BIOs that have been
+ * provided by DM and are not actively being processed by the user, along
+ * with a misc device that userspace can open to communicate with the
+ * kernel. Each time userspaces opens the misc device a new channel is
+ * created.
+ * - "struct channel", which represents a single active communication channel
+ * with userspace. Userspace may choose arbitrary read/write sizes to use
+ * when processing messages, channels form these into logical accesses.
+ * When userspace responds to a full message the channel completes the BIO
+ * and obtains a new message to process from the target.
+ * - "struct message", which wraps a BIO with the additional information
+ * required by the kernel to sort out what to do with BIOs when they return
+ * from userspace.
+ * - "struct dm_user_message", which is the exact message format that
+ * userspace sees.
+ *
+ * The hot path contains three distinct operations:
+ *
+ * - user_map(), which is provided a BIO from device mapper that is queued
+ * into the target. This allocates and enqueues a new message.
+ * - dev_read(), which dequeues a message, copies it to userspace.
+ * - dev_write(), which looks up a message (keyed by sequence number) and
+ * completes the corresponding BIO.
+ *
+ * Lock ordering (outer to inner)
+ *
+ * 1) miscdevice's global lock. This is held around dev_open, so it has to be
+ * the outermost lock.
+ * 2) target->lock
+ * 3) channel->lock
+ */
+
+struct message {
+ /*
+ * Messages themselves do not need a lock, they're protected by either
+ * the target or channel's lock, depending on which can reference them
+ * directly.
+ */
+ struct dm_user_message msg;
+ struct bio *bio;
+ size_t posn_to_user;
+ size_t total_to_user;
+ size_t posn_from_user;
+ size_t total_from_user;
+
+ struct list_head from_user;
+ struct list_head to_user;
+
+ /*
+ * These are written back from the user. They live in the same spot in
+ * the message, but we need to either keep the old values around or
+ * call a bunch more BIO helpers. These are only valid after write has
+ * adopted the message.
+ */
+ u64 return_type;
+ u64 return_flags;
+};
+
+struct target {
+ /*
+ * A target has a single lock, which protects everything in the target
+ * (but does not protect the channels associated with a target).
+ */
+ struct mutex lock;
+
+ /*
+ * There is only one point at which anything blocks: userspace blocks
+ * reading a new message, which is woken up by device mapper providing
+ * a new BIO to process (or tearing down the target). The
+ * corresponding write side doesn't block, instead we treat userspace's
+ * response containing a message that has yet to be mapped as an
+ * invalid operation.
+ */
+ struct wait_queue_head wq;
+
+ /*
+ * Messages are delivered to userspace in order, but may be returned
+ * out of order. This allows userspace to schedule IO if it wants to.
+ */
+ mempool_t message_pool;
+ u64 next_seq_to_map;
+ u64 next_seq_to_user;
+ struct list_head to_user;
+
+ /*
+ * There is a misc device per target. The name is selected by
+ * userspace (via a DM create ioctl argument), and each ends up in
+ * /dev/dm-user/. It looks like a better way to do this may be to have
+ * a filesystem to manage these, but this was more expedient. The
+ * current mechanism is functional, but does result in an arbitrary
+ * number of dynamically created misc devices.
+ */
+ struct miscdevice miscdev;
+
+ /*
+ * Device mapper's target destructor triggers tearing this all down,
+ * but we can't actually free until every channel associated with this
+ * target has been destroyed. Channels each have a reference to their
+ * target, and there is an additional single reference that corresponds
+ * to both DM and the misc device (both of which are destroyed by DM).
+ *
+ * In the common case userspace will be asleep waiting for a new
+ * message when device mapper decides to destroy the target, which
+ * means no new messages will appear. The destroyed flag triggers a
+ * wakeup, which will end up removing the reference.
+ */
+ struct kref references;
+ int dm_destroyed;
+};
+
+struct channel {
+ struct target *target;
+
+ /*
+ * A channel has a single lock, which prevents multiple reads (or
+ * multiple writes) from conflicting with each other.
+ */
+ struct mutex lock;
+
+ struct message *cur_to_user;
+ struct message *cur_from_user;
+ ssize_t to_user_error;
+ ssize_t from_user_error;
+
+ /*
+ * Once a message has been forwarded to userspace on a channel it must
+ * be responded to on the same channel. This allows us to error out
+ * the messages that have not yet been responded to by a channel when
+ * that channel closes, which makes handling errors more reasonable for
+ * fault-tolerant userspace daemons. It also happens to make avoiding
+ * shared locks between user_map() and dev_read() a lot easier.
+ *
+ * This does preclude a multi-threaded work stealing userspace
+ * implementation (or at least, force a degree of head-of-line blocking
+ * on the response path).
+ */
+ struct list_head from_user;
+
+ /*
+ * Responses from userspace can arrive in arbitrarily small chunks.
+ * We need some place to buffer one up until we can find the
+ * corresponding kernel-side message to continue processing, so instead
+ * of allocating them we just keep one off to the side here. This can
+ * only ever be pointer to by from_user_cur, and will never have a BIO.
+ */
+ struct message scratch_message_from_user;
+};
+
+static inline struct target *target_from_target(struct dm_target *target)
+{
+ WARN_ON(target->private == NULL);
+ return target->private;
+}
+
+static inline struct target *target_from_miscdev(struct miscdevice *miscdev)
+{
+ return container_of(miscdev, struct target, miscdev);
+}
+
+static inline struct channel *channel_from_file(struct file *file)
+{
+ WARN_ON(file->private_data == NULL);
+ return file->private_data;
+}
+
+static inline struct target *target_from_channel(struct channel *c)
+{
+ WARN_ON(c->target == NULL);
+ return c->target;
+}
+
+static inline size_t bio_size(struct bio *bio)
+{
+ struct bio_vec bvec;
+ struct bvec_iter iter;
+ size_t out = 0;
+
+ bio_for_each_segment (bvec, bio, iter)
+ out += bio_iter_len(bio, iter);
+ return out;
+}
+
+static inline size_t bio_bytes_needed_to_user(struct bio *bio)
+{
+ switch (bio_op(bio)) {
+ case REQ_OP_WRITE:
+ return sizeof(struct dm_user_message) + bio_size(bio);
+ case REQ_OP_READ:
+ case REQ_OP_FLUSH:
+ case REQ_OP_DISCARD:
+ case REQ_OP_SECURE_ERASE:
+ case REQ_OP_WRITE_SAME:
+ case REQ_OP_WRITE_ZEROES:
+ return sizeof(struct dm_user_message);
+
+ /*
+ * These ops are not passed to userspace under the assumption that
+ * they're not going to be particularly useful in that context.
+ */
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static inline size_t bio_bytes_needed_from_user(struct bio *bio)
+{
+ switch (bio_op(bio)) {
+ case REQ_OP_READ:
+ return sizeof(struct dm_user_message) + bio_size(bio);
+ case REQ_OP_WRITE:
+ case REQ_OP_FLUSH:
+ case REQ_OP_DISCARD:
+ case REQ_OP_SECURE_ERASE:
+ case REQ_OP_WRITE_SAME:
+ case REQ_OP_WRITE_ZEROES:
+ return sizeof(struct dm_user_message);
+
+ /*
+ * These ops are not passed to userspace under the assumption that
+ * they're not going to be particularly useful in that context.
+ */
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static inline long bio_type_to_user_type(struct bio *bio)
+{
+ switch (bio_op(bio)) {
+ case REQ_OP_READ:
+ return DM_USER_REQ_MAP_READ;
+ case REQ_OP_WRITE:
+ return DM_USER_REQ_MAP_WRITE;
+ case REQ_OP_FLUSH:
+ return DM_USER_REQ_MAP_FLUSH;
+ case REQ_OP_DISCARD:
+ return DM_USER_REQ_MAP_DISCARD;
+ case REQ_OP_SECURE_ERASE:
+ return DM_USER_REQ_MAP_SECURE_ERASE;
+ case REQ_OP_WRITE_SAME:
+ return DM_USER_REQ_MAP_WRITE_SAME;
+ case REQ_OP_WRITE_ZEROES:
+ return DM_USER_REQ_MAP_WRITE_ZEROES;
+
+ /*
+ * These ops are not passed to userspace under the assumption that
+ * they're not going to be particularly useful in that context.
+ */
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static inline long bio_flags_to_user_flags(struct bio *bio)
+{
+ u64 out = 0;
+ typeof(bio->bi_opf) opf = bio->bi_opf & ~REQ_OP_MASK;
+
+ if (opf & REQ_FAILFAST_DEV) {
+ opf &= ~REQ_FAILFAST_DEV;
+ out |= DM_USER_REQ_MAP_FLAG_FAILFAST_DEV;
+ }
+
+ if (opf & REQ_FAILFAST_TRANSPORT) {
+ opf &= ~REQ_FAILFAST_TRANSPORT;
+ out |= DM_USER_REQ_MAP_FLAG_FAILFAST_TRANSPORT;
+ }
+
+ if (opf & REQ_FAILFAST_DRIVER) {
+ opf &= ~REQ_FAILFAST_DRIVER;
+ out |= DM_USER_REQ_MAP_FLAG_FAILFAST_DRIVER;
+ }
+
+ if (opf & REQ_SYNC) {
+ opf &= ~REQ_SYNC;
+ out |= DM_USER_REQ_MAP_FLAG_SYNC;
+ }
+
+ if (opf & REQ_META) {
+ opf &= ~REQ_META;
+ out |= DM_USER_REQ_MAP_FLAG_META;
+ }
+
+ if (opf & REQ_PRIO) {
+ opf &= ~REQ_PRIO;
+ out |= DM_USER_REQ_MAP_FLAG_PRIO;
+ }
+
+ if (opf & REQ_NOMERGE) {
+ opf &= ~REQ_NOMERGE;
+ out |= DM_USER_REQ_MAP_FLAG_NOMERGE;
+ }
+
+ if (opf & REQ_IDLE) {
+ opf &= ~REQ_IDLE;
+ out |= DM_USER_REQ_MAP_FLAG_IDLE;
+ }
+
+ if (opf & REQ_INTEGRITY) {
+ opf &= ~REQ_INTEGRITY;
+ out |= DM_USER_REQ_MAP_FLAG_INTEGRITY;
+ }
+
+ if (opf & REQ_FUA) {
+ opf &= ~REQ_FUA;
+ out |= DM_USER_REQ_MAP_FLAG_FUA;
+ }
+
+ if (opf & REQ_PREFLUSH) {
+ opf &= ~REQ_PREFLUSH;
+ out |= DM_USER_REQ_MAP_FLAG_PREFLUSH;
+ }
+
+ if (opf & REQ_RAHEAD) {
+ opf &= ~REQ_RAHEAD;
+ out |= DM_USER_REQ_MAP_FLAG_RAHEAD;
+ }
+
+ if (opf & REQ_BACKGROUND) {
+ opf &= ~REQ_BACKGROUND;
+ out |= DM_USER_REQ_MAP_FLAG_BACKGROUND;
+ }
+
+ if (opf & REQ_NOWAIT) {
+ opf &= ~REQ_NOWAIT;
+ out |= DM_USER_REQ_MAP_FLAG_NOWAIT;
+ }
+
+ if (opf & REQ_NOUNMAP) {
+ opf &= ~REQ_NOUNMAP;
+ out |= DM_USER_REQ_MAP_FLAG_NOUNMAP;
+ }
+
+ if (unlikely(opf)) {
+ pr_warn("unsupported BIO type %x\n", opf);
+ return -EOPNOTSUPP;
+ }
+ WARN_ON(out < 0);
+ return out;
+}
+
+/*
+ * Not quite what's in blk-map.c, but instead what I thought the functions in
+ * blk-map did. This one seems more generally useful and I think we could
+ * write the blk-map version in terms of this one. The differences are that
+ * this has a return value that counts, and blk-map uses the BIO _all iters.
+ * Neither advance the BIO iter but don't advance the IOV iter, which is a bit
+ * odd here.
+ */
+static ssize_t bio_copy_from_iter(struct bio *bio, struct iov_iter *iter)
+{
+ struct bio_vec bvec;
+ struct bvec_iter biter;
+ ssize_t out = 0;
+
+ bio_for_each_segment (bvec, bio, biter) {
+ ssize_t ret;
+
+ ret = copy_page_from_iter(bvec.bv_page, bvec.bv_offset,
+ bvec.bv_len, iter);
+
+ /*
+ * FIXME: I thought that IOV copies had a mechanism for
+ * terminating early, if for example a signal came in while
+ * sleeping waiting for a page to be mapped, but I don't see
+ * where that would happen.
+ */
+ WARN_ON(ret < 0);
+ out += ret;
+
+ if (!iov_iter_count(iter))
+ break;
+
+ if (ret < bvec.bv_len)
+ return ret;
+ }
+
+ return out;
+}
+
+static ssize_t bio_copy_to_iter(struct bio *bio, struct iov_iter *iter)
+{
+ struct bio_vec bvec;
+ struct bvec_iter biter;
+ ssize_t out = 0;
+
+ bio_for_each_segment (bvec, bio, biter) {
+ ssize_t ret;
+
+ ret = copy_page_to_iter(bvec.bv_page, bvec.bv_offset,
+ bvec.bv_len, iter);
+
+ /* as above */
+ WARN_ON(ret < 0);
+ out += ret;
+
+ if (!iov_iter_count(iter))
+ break;
+
+ if (ret < bvec.bv_len)
+ return ret;
+ }
+
+ return out;
+}
+
+static ssize_t msg_copy_to_iov(struct message *msg, struct iov_iter *to)
+{
+ ssize_t copied = 0;
+
+ if (!iov_iter_count(to))
+ return 0;
+
+ if (msg->posn_to_user < sizeof(msg->msg)) {
+ copied = copy_to_iter((char *)(&msg->msg) + msg->posn_to_user,
+ sizeof(msg->msg) - msg->posn_to_user, to);
+ } else {
+ copied = bio_copy_to_iter(msg->bio, to);
+ if (copied > 0)
+ bio_advance(msg->bio, copied);
+ }
+
+ if (copied < 0)
+ return copied;
+
+ msg->posn_to_user += copied;
+ return copied;
+}
+
+static ssize_t msg_copy_from_iov(struct message *msg, struct iov_iter *from)
+{
+ ssize_t copied = 0;
+
+ if (!iov_iter_count(from))
+ return 0;
+
+ if (msg->posn_from_user < sizeof(msg->msg)) {
+ copied = copy_from_iter(
+ (char *)(&msg->msg) + msg->posn_from_user,
+ sizeof(msg->msg) - msg->posn_from_user, from);
+ } else {
+ copied = bio_copy_from_iter(msg->bio, from);
+ if (copied > 0)
+ bio_advance(msg->bio, copied);
+ }
+
+ if (copied < 0)
+ return copied;
+
+ msg->posn_from_user += copied;
+ return copied;
+}
+
+static struct message *msg_get_map(struct target *t)
+{
+ struct message *m;
+
+ lockdep_assert_held(&t->lock);
+
+ m = mempool_alloc(&t->message_pool, GFP_NOIO);
+ m->msg.seq = t->next_seq_to_map++;
+ INIT_LIST_HEAD(&m->to_user);
+ INIT_LIST_HEAD(&m->from_user);
+ return m;
+}
+
+static struct message *msg_get_to_user(struct target *t)
+{
+ struct message *m;
+
+ lockdep_assert_held(&t->lock);
+
+ if (list_empty(&t->to_user))
+ return NULL;
+
+ m = list_first_entry(&t->to_user, struct message, to_user);
+ list_del(&m->to_user);
+ return m;
+}
+
+static struct message *msg_get_from_user(struct channel *c, u64 seq)
+{
+ struct message *m;
+ struct list_head *cur, *tmp;
+
+ lockdep_assert_held(&c->lock);
+
+ list_for_each_safe (cur, tmp, &c->from_user) {
+ m = list_entry(cur, struct message, from_user);
+ if (m->msg.seq == seq) {
+ list_del(&m->from_user);
+ return m;
+ }
+ }
+
+ return NULL;
+}
+
+static void message_kill(struct message *m, mempool_t *pool)
+{
+ m->bio->bi_status = BLK_STS_IOERR;
+ bio_endio(m->bio);
+ bio_put(m->bio);
+ mempool_free(m, pool);
+}
+
+/*
+ * Returns 0 when there is no work left to do. This must be callable without
+ * holding the target lock, as it is part of the waitqueue's check expression.
+ * When called without the lock it may spuriously indicate there is remaining
+ * work, but when called with the lock it must be accurate.
+ */
+static int target_poll(struct target *t)
+{
+ return !list_empty(&t->to_user) || t->dm_destroyed;
+}
+
+static void target_release(struct kref *ref)
+{
+ struct target *t = container_of(ref, struct target, references);
+ struct list_head *cur, *tmp;
+
+ /*
+ * There may be outstanding BIOs that have not yet been given to
+ * userspace. At this point there's nothing we can do about them, as
+ * there are and will never be any channels.
+ */
+ list_for_each_safe (cur, tmp, &t->to_user) {
+ message_kill(list_entry(cur, struct message, to_user),
+ &t->message_pool);
+ }
+
+ mempool_exit(&t->message_pool);
+ mutex_unlock(&t->lock);
+ mutex_destroy(&t->lock);
+ kfree(t);
+}
+
+static void target_put(struct target *t)
+{
+ /*
+ * This both releases a reference to the target and the lock. We leave
+ * it up to the caller to hold the lock, as they probably needed it for
+ * something else.
+ */
+ lockdep_assert_held(&t->lock);
+
+ if (!kref_put(&t->references, target_release))
+ mutex_unlock(&t->lock);
+}
+
+static struct channel *channel_alloc(struct target *t)
+{
+ struct channel *c;
+
+ lockdep_assert_held(&t->lock);
+
+ c = kzalloc(sizeof(*c), GFP_KERNEL);
+ if (c == NULL)
+ return NULL;
+
+ kref_get(&t->references);
+ c->target = t;
+ c->cur_from_user = &c->scratch_message_from_user;
+ mutex_init(&c->lock);
+ INIT_LIST_HEAD(&c->from_user);
+ return c;
+}
+
+static void channel_free(struct channel *c)
+{
+ struct list_head *cur, *tmp;
+
+ lockdep_assert_held(&c->lock);
+
+ /*
+ * There may be outstanding BIOs that have been given to userspace but
+ * have not yet been completed. The channel has been shut down so
+ * there's no way to process the rest of those messages, so we just go
+ * ahead and error out the BIOs. Hopefully whatever's on the other end
+ * can handle the errors. One could imagine splitting the BIOs and
+ * completing as much as we got, but that seems like overkill here.
+ *
+ * Our only other options would be to let the BIO hang around (which
+ * seems way worse) or to resubmit it to userspace in the hope there's
+ * another channel. I don't really like the idea of submitting a
+ * message twice.
+ */
+ if (c->cur_to_user != NULL)
+ message_kill(c->cur_to_user, &c->target->message_pool);
+ if (c->cur_from_user != &c->scratch_message_from_user)
+ message_kill(c->cur_from_user, &c->target->message_pool);
+ list_for_each_safe (cur, tmp, &c->from_user)
+ message_kill(list_entry(cur, struct message, from_user),
+ &c->target->message_pool);
+
+ mutex_lock(&c->target->lock);
+ target_put(c->target);
+ mutex_unlock(&c->lock);
+ mutex_destroy(&c->lock);
+ kfree(c);
+}
+
+static int dev_open(struct inode *inode, struct file *file)
+{
+ struct channel *c;
+ struct target *t;
+
+ /*
+ * This is called by miscdev, which sets private_data to point to the
+ * struct miscdevice that was opened. The rest of our file operations
+ * want to refer to the channel that's been opened, so we swap that
+ * pointer out with a fresh channel.
+ *
+ * This is called with the miscdev lock held, which is also held while
+ * registering/unregistering the miscdev. The miscdev must be
+ * registered for this to get called, which means there must be an
+ * outstanding reference to the target, which means it cannot be freed
+ * out from under us despite us not holding a reference yet.
+ */
+ t = container_of(file->private_data, struct target, miscdev);
+ mutex_lock(&t->lock);
+ file->private_data = c = channel_alloc(t);
+
+ if (c == NULL) {
+ mutex_unlock(&t->lock);
+ return -ENOMEM;
+ }
+
+ mutex_unlock(&t->lock);
+ return 0;
+}
+
+static ssize_t dev_read(struct kiocb *iocb, struct iov_iter *to)
+{
+ struct channel *c = channel_from_file(iocb->ki_filp);
+ ssize_t total_processed = 0;
+ ssize_t processed;
+
+ mutex_lock(&c->lock);
+
+ if (unlikely(c->to_user_error)) {
+ total_processed = c->to_user_error;
+ goto cleanup_unlock;
+ }
+
+ if (c->cur_to_user == NULL) {
+ struct target *t = target_from_channel(c);
+
+ mutex_lock(&t->lock);
+
+ while (!target_poll(t)) {
+ int e;
+
+ mutex_unlock(&t->lock);
+ mutex_unlock(&c->lock);
+ e = wait_event_interruptible(t->wq, target_poll(t));
+ mutex_lock(&c->lock);
+ mutex_lock(&t->lock);
+
+ if (unlikely(e != 0)) {
+ /*
+ * We haven't processed any bytes in either the
+ * BIO or the IOV, so we can just terminate
+ * right now. Elsewhere in the kernel handles
+ * restarting the syscall when appropriate.
+ */
+ total_processed = e;
+ mutex_unlock(&t->lock);
+ goto cleanup_unlock;
+ }
+ }
+
+ if (unlikely(t->dm_destroyed)) {
+ /*
+ * DM has destroyed this target, so just lock
+ * the user out. There's really nothing else
+ * we can do here. Note that we don't actually
+ * tear any thing down until userspace has
+ * closed the FD, as there may still be
+ * outstanding BIOs.
+ *
+ * This is kind of a wacky error code to
+ * return. My goal was really just to try and
+ * find something that wasn't likely to be
+ * returned by anything else in the miscdev
+ * path. The message "block device required"
+ * seems like a somewhat reasonable thing to
+ * say when the target has disappeared out from
+ * under us, but "not block" isn't sensible.
+ */
+ c->to_user_error = total_processed = -ENOTBLK;
+ mutex_unlock(&t->lock);
+ goto cleanup_unlock;
+ }
+
+ /*
+ * Ensures that accesses to the message data are not ordered
+ * before the remote accesses that produce that message data.
+ *
+ * This pairs with the barrier in user_map(), via the
+ * conditional within the while loop above. Also see the lack
+ * of barrier in user_dtr(), which is why this can be after the
+ * destroyed check.
+ */
+ smp_rmb();
+
+ c->cur_to_user = msg_get_to_user(t);
+ WARN_ON(c->cur_to_user == NULL);
+ mutex_unlock(&t->lock);
+ }
+
+ processed = msg_copy_to_iov(c->cur_to_user, to);
+ total_processed += processed;
+
+ WARN_ON(c->cur_to_user->posn_to_user > c->cur_to_user->total_to_user);
+ if (c->cur_to_user->posn_to_user == c->cur_to_user->total_to_user) {
+ struct message *m = c->cur_to_user;
+
+ c->cur_to_user = NULL;
+ list_add_tail(&m->from_user, &c->from_user);
+ }
+
+cleanup_unlock:
+ mutex_unlock(&c->lock);
+ return total_processed;
+}
+
+static ssize_t dev_write(struct kiocb *iocb, struct iov_iter *from)
+{
+ struct channel *c = channel_from_file(iocb->ki_filp);
+ ssize_t total_processed = 0;
+ ssize_t processed;
+
+ mutex_lock(&c->lock);
+
+ if (unlikely(c->from_user_error)) {
+ total_processed = c->from_user_error;
+ goto cleanup_unlock;
+ }
+
+ /*
+ * cur_from_user can never be NULL. If there's no real message it must
+ * point to the scratch space.
+ */
+ WARN_ON(c->cur_from_user == NULL);
+ if (c->cur_from_user->posn_from_user < sizeof(struct dm_user_message)) {
+ struct message *msg, *old;
+
+ processed = msg_copy_from_iov(c->cur_from_user, from);
+ if (processed <= 0) {
+ pr_warn("msg_copy_from_iov() returned %zu\n",
+ processed);
+ c->from_user_error = -EINVAL;
+ goto cleanup_unlock;
+ }
+ total_processed += processed;
+
+ /*
+ * In the unlikely event the user has provided us a very short
+ * write, not even big enough to fill a message, just succeed.
+ * We'll eventually build up enough bytes to do something.
+ */
+ if (unlikely(c->cur_from_user->posn_from_user <
+ sizeof(struct dm_user_message)))
+ goto cleanup_unlock;
+
+ old = c->cur_from_user;
+ mutex_lock(&c->target->lock);
+ msg = msg_get_from_user(c, c->cur_from_user->msg.seq);
+ if (msg == NULL) {
+ pr_info("user provided an invalid messag seq of %llx\n",
+ old->msg.seq);
+ mutex_unlock(&c->target->lock);
+ c->from_user_error = -EINVAL;
+ goto cleanup_unlock;
+ }
+ mutex_unlock(&c->target->lock);
+
+ WARN_ON(old->posn_from_user != sizeof(struct dm_user_message));
+ msg->posn_from_user = sizeof(struct dm_user_message);
+ msg->return_type = old->msg.type;
+ msg->return_flags = old->msg.flags;
+ WARN_ON(msg->posn_from_user > msg->total_from_user);
+ c->cur_from_user = msg;
+ WARN_ON(old != &c->scratch_message_from_user);
+ }
+
+ /*
+ * Userspace can signal an error for single requests by overwriting the
+ * seq field.
+ */
+ switch (c->cur_from_user->return_type) {
+ case DM_USER_RESP_SUCCESS:
+ c->cur_from_user->bio->bi_status = BLK_STS_OK;
+ break;
+ case DM_USER_RESP_ERROR:
+ case DM_USER_RESP_UNSUPPORTED:
+ default:
+ c->cur_from_user->bio->bi_status = BLK_STS_IOERR;
+ goto finish_bio;
+ }
+
+ /*
+ * The op was a success as far as userspace is concerned, so process
+ * whatever data may come along with it. The user may provide the BIO
+ * data in multiple chunks, in which case we don't need to finish the
+ * BIO.
+ */
+ processed = msg_copy_from_iov(c->cur_from_user, from);
+ total_processed += processed;
+
+ if (c->cur_from_user->posn_from_user <
+ c->cur_from_user->total_from_user)
+ goto cleanup_unlock;
+
+finish_bio:
+ /*
+ * When we set up this message the BIO's size matched the
+ * message size, if that's not still the case then something
+ * has gone off the rails.
+ */
+ WARN_ON(bio_size(c->cur_from_user->bio) != 0);
+ bio_endio(c->cur_from_user->bio);
+ bio_put(c->cur_from_user->bio);
+
+ /*
+ * We don't actually need to take the target lock here, as all
+ * we're doing is freeing the message and mempools have their
+ * own lock. Each channel has its ows scratch message.
+ */
+ WARN_ON(c->cur_from_user == &c->scratch_message_from_user);
+ mempool_free(c->cur_from_user, &c->target->message_pool);
+ c->scratch_message_from_user.posn_from_user = 0;
+ c->cur_from_user = &c->scratch_message_from_user;
+
+cleanup_unlock:
+ mutex_unlock(&c->lock);
+ return total_processed;
+}
+
+static int dev_release(struct inode *inode, struct file *file)
+{
+ struct channel *c;
+
+ c = channel_from_file(file);
+ mutex_lock(&c->lock);
+ channel_free(c);
+
+ return 0;
+}
+
+static const struct file_operations file_operations = {
+ .owner = THIS_MODULE,
+ .open = dev_open,
+ .llseek = no_llseek,
+ .read_iter = dev_read,
+ .write_iter = dev_write,
+ .release = dev_release,
+};
+
+static int user_ctr(struct dm_target *ti, unsigned int argc, char **argv)
+{
+ struct target *t;
+ int r;
+
+ if (argc != 3) {
+ ti->error = "Invalid argument count";
+ r = -EINVAL;
+ goto cleanup_none;
+ }
+
+ t = kzalloc(sizeof(*t), GFP_KERNEL);
+ if (t == NULL) {
+ r = -ENOMEM;
+ goto cleanup_none;
+ }
+ ti->private = t;
+
+ /* Enable more BIO types. */
+ ti->num_discard_bios = 1;
+ ti->discards_supported = true;
+ ti->num_flush_bios = 1;
+ ti->flush_supported = true;
+
+ /*
+ * We begin with a single reference to the target, which is miscdev's
+ * reference. This ensures that the target won't be freed
+ * until after the miscdev has been unregistered and all extant
+ * channels have been closed.
+ */
+ kref_init(&t->references);
+
+ mutex_init(&t->lock);
+ init_waitqueue_head(&t->wq);
+ INIT_LIST_HEAD(&t->to_user);
+ mempool_init_kmalloc_pool(&t->message_pool, MAX_OUTSTANDING_MESSAGES,
+ sizeof(struct message));
+
+ t->miscdev.minor = MISC_DYNAMIC_MINOR;
+ t->miscdev.fops = &file_operations;
+ t->miscdev.name = kasprintf(GFP_KERNEL, "dm-user/%s", argv[2]);
+ if (t->miscdev.name == NULL) {
+ r = -ENOMEM;
+ goto cleanup_message_pool;
+ }
+
+ /*
+ * Once the miscdev is registered it can be opened and therefor
+ * concurrent references to the channel can happen. Holding the target
+ * lock during misc_register() could deadlock. If registration
+ * succeeds then we will not access the target again so we just stick a
+ * barrier here, which pairs with taking the target lock everywhere
+ * else the target is accessed.
+ *
+ * I forgot where we ended up on the RCpc/RCsc locks. IIU RCsc locks
+ * would mean that we could take the target lock earlier and release it
+ * here instead of the memory barrier. I'm not sure that's any better,
+ * though, and this isn't on a hot path so it probably doesn't matter
+ * either way.
+ */
+ smp_mb();
+
+ r = misc_register(&t->miscdev);
+ if (r) {
+ DMERR("Unable to register miscdev %s for dm-user",
+ t->miscdev.name);
+ r = -ENOMEM;
+ goto cleanup_misc_name;
+ }
+
+ return 0;
+
+cleanup_misc_name:
+ kfree(t->miscdev.name);
+cleanup_message_pool:
+ mempool_exit(&t->message_pool);
+ kfree(t);
+cleanup_none:
+ return r;
+}
+
+static void user_dtr(struct dm_target *ti)
+{
+ struct target *t = target_from_target(ti);
+
+ /*
+ * Removes the miscdev. This must be called without the target lock
+ * held to avoid a possible deadlock because our open implementation is
+ * called holding the miscdev lock and must later take the target lock.
+ *
+ * There is no race here because only DM can register/unregister the
+ * miscdev, and DM ensures that doesn't happen twice. The internal
+ * miscdev lock is sufficient to ensure there are no races between
+ * deregistering the miscdev and open.
+ */
+ misc_deregister(&t->miscdev);
+
+ /*
+ * We are now free to take the target's lock and drop our reference to
+ * the target. There are almost certainly tasks sleeping in read on at
+ * least one of the channels associated with this target, this
+ * explicitly wakes them up and terminates the read.
+ */
+ mutex_lock(&t->lock);
+ /*
+ * No barrier here, as wait/wake ensures that the flag visibility is
+ * correct WRT the wake/sleep state of the target tasks.
+ */
+ t->dm_destroyed = true;
+ wake_up_all(&t->wq);
+ target_put(t);
+}
+
+/*
+ * Consumes a BIO from device mapper, queueing it up for userspace.
+ */
+static int user_map(struct dm_target *ti, struct bio *bio)
+{
+ struct target *t;
+ struct message *entry;
+
+ t = target_from_target(ti);
+ /*
+ * FIXME
+ *
+ * This seems like a bad idea. Specifically, here we're
+ * directly on the IO path when we take the target lock, which may also
+ * be taken from a user context. The user context doesn't actively
+ * trigger anything that may sleep while holding the lock, but this
+ * still seems like a bad idea.
+ *
+ * The obvious way to fix this would be to use a proper queue, which
+ * would result in no shared locks between the direct IO path and user
+ * tasks. I had a version that did this, but the head-of-line blocking
+ * from the circular buffer resulted in us needing a fairly large
+ * allocation in order to avoid situations in which the queue fills up
+ * and everything goes off the rails.
+ *
+ * I could jump through a some hoops to avoid a shared lock while still
+ * allowing for a large queue, but I'm not actually sure that allowing
+ * for very large queues is the right thing to do here. Intuitively it
+ * seems better to keep the queues small in here (essentially sized to
+ * the user latency for performance reasons only) and rely on returning
+ * DM_MAPIO_REQUEUE regularly, as that would give the rest of the
+ * kernel more information.
+ *
+ * I'll spend some time trying to figure out what's going on with
+ * DM_MAPIO_REQUEUE, but if someone has a better idea of how to fix
+ * this I'm all ears.
+ */
+ mutex_lock(&t->lock);
+
+ /*
+ * FIXME
+ *
+ * The assumption here is that there's no benefit to returning
+ * DM_MAPIO_KILL as opposed to just erroring out the BIO, but I'm not
+ * sure that's actually true -- for example, I could imagine users
+ * expecting that submitted BIOs are unlikely to fail and therefor
+ * relying on submission failure to indicate an unsupported type.
+ *
+ * There's two ways I can think of to fix this:
+ * - Add DM arguments that are parsed during the constructor that
+ * allow various dm_target flags to be set that indicate the op
+ * types supported by this target. This may make sense for things
+ * like discard, where DM can already transform the BIOs to a form
+ * that's likely to be supported.
+ * - Some sort of pre-filter that allows userspace to hook in here
+ * and kill BIOs before marking them as submitted. My guess would
+ * be that a userspace round trip is a bad idea here, but a BPF
+ * call seems resonable.
+ *
+ * My guess is that we'd likely want to do both. The first one is easy
+ * and gives DM the proper info, so it seems better. The BPF call
+ * seems overly complex for just this, but one could imagine wanting to
+ * sometimes return _MAPPED and a BPF filter would be the way to do
+ * that.
+ *
+ * For example, in Android we have an in-kernel DM device called
+ * "dm-bow" that takes advange of some portion of the space that has
+ * been discarded on a device to provide opportunistic block-level
+ * backups. While one could imagine just implementing this entirely in
+ * userspace, that would come with an appreciable performance penalty.
+ * Instead one could keep a BPF program that forwards most accesses
+ * directly to the backing block device while informing a userspace
+ * daemon of any discarded space and on writes to blocks that are to be
+ * backed up.
+ */
+ if (unlikely((bio_type_to_user_type(bio) < 0) ||
+ (bio_flags_to_user_flags(bio) < 0))) {
+ mutex_unlock(&t->lock);
+ return DM_MAPIO_KILL;
+ }
+
+ entry = msg_get_map(t);
+ if (unlikely(entry == NULL)) {
+ mutex_unlock(&t->lock);
+ return DM_MAPIO_REQUEUE;
+ }
+
+ bio_get(bio);
+ entry->msg.type = bio_type_to_user_type(bio);
+ entry->msg.flags = bio_flags_to_user_flags(bio);
+ entry->msg.sector = bio->bi_iter.bi_sector;
+ entry->msg.len = bio_size(bio);
+ entry->bio = bio;
+ entry->posn_to_user = 0;
+ entry->total_to_user = bio_bytes_needed_to_user(bio);
+ entry->posn_from_user = 0;
+ entry->total_from_user = bio_bytes_needed_from_user(bio);
+ /* Pairs with the barrier in dev_read() */
+ smp_wmb();
+ list_add_tail(&entry->to_user, &t->to_user);
+ wake_up_interruptible(&t->wq);
+ mutex_unlock(&t->lock);
+ return DM_MAPIO_SUBMITTED;
+}
+
+static struct target_type user_target = {
+ .name = "user",
+ .version = { 1, 0, 0 },
+ .module = THIS_MODULE,
+ .ctr = user_ctr,
+ .dtr = user_dtr,
+ .map = user_map,
+};
+
+static int __init dm_user_init(void)
+{
+ int r;
+
+ r = dm_register_target(&user_target);
+ if (r) {
+ DMERR("register failed %d", r);
+ goto error;
+ }
+
+ return 0;
+
+error:
+ return r;
+}
+
+static void __exit dm_user_exit(void)
+{
+ dm_unregister_target(&user_target);
+}
+
+module_init(dm_user_init);
+module_exit(dm_user_exit);
+MODULE_AUTHOR("Palmer Dabbelt <palmerdabbelt@google.com>");
+MODULE_DESCRIPTION(DM_NAME " target returning blocks from userspace");
+MODULE_LICENSE("GPL");
diff --git a/drivers/md/dm-verity-avb.c b/drivers/md/dm-verity-avb.c
new file mode 100644
index 0000000..a9f102a
--- /dev/null
+++ b/drivers/md/dm-verity-avb.c
@@ -0,0 +1,229 @@
+/*
+ * Copyright (C) 2017 Google.
+ *
+ * This file is released under the GPLv2.
+ *
+ * Based on drivers/md/dm-verity-chromeos.c
+ */
+
+#include <linux/device-mapper.h>
+#include <linux/module.h>
+#include <linux/mount.h>
+
+#define DM_MSG_PREFIX "verity-avb"
+
+/* Set via module parameters. */
+static char avb_vbmeta_device[64];
+static char avb_invalidate_on_error[4];
+
+static void invalidate_vbmeta_endio(struct bio *bio)
+{
+ if (bio->bi_status)
+ DMERR("invalidate_vbmeta_endio: error %d", bio->bi_status);
+ complete(bio->bi_private);
+}
+
+static int invalidate_vbmeta_submit(struct bio *bio,
+ struct block_device *bdev,
+ int op, int access_last_sector,
+ struct page *page)
+{
+ DECLARE_COMPLETION_ONSTACK(wait);
+
+ bio->bi_private = &wait;
+ bio->bi_end_io = invalidate_vbmeta_endio;
+ bio_set_dev(bio, bdev);
+ bio_set_op_attrs(bio, op, REQ_SYNC);
+
+ bio->bi_iter.bi_sector = 0;
+ if (access_last_sector) {
+ sector_t last_sector;
+
+ last_sector = (i_size_read(bdev->bd_inode)>>SECTOR_SHIFT) - 1;
+ bio->bi_iter.bi_sector = last_sector;
+ }
+ if (!bio_add_page(bio, page, PAGE_SIZE, 0)) {
+ DMERR("invalidate_vbmeta_submit: bio_add_page error");
+ return -EIO;
+ }
+
+ submit_bio(bio);
+ /* Wait up to 2 seconds for completion or fail. */
+ if (!wait_for_completion_timeout(&wait, msecs_to_jiffies(2000)))
+ return -EIO;
+ return 0;
+}
+
+static int invalidate_vbmeta(dev_t vbmeta_devt)
+{
+ int ret = 0;
+ struct block_device *bdev;
+ struct bio *bio;
+ struct page *page;
+ fmode_t dev_mode;
+ /* Ensure we do synchronous unblocked I/O. We may also need
+ * sync_bdev() on completion, but it really shouldn't.
+ */
+ int access_last_sector = 0;
+
+ DMINFO("invalidate_vbmeta: acting on device %d:%d",
+ MAJOR(vbmeta_devt), MINOR(vbmeta_devt));
+
+ /* First we open the device for reading. */
+ dev_mode = FMODE_READ | FMODE_EXCL;
+ bdev = blkdev_get_by_dev(vbmeta_devt, dev_mode,
+ invalidate_vbmeta);
+ if (IS_ERR(bdev)) {
+ DMERR("invalidate_kernel: could not open device for reading");
+ dev_mode = 0;
+ ret = -ENOENT;
+ goto failed_to_read;
+ }
+
+ bio = bio_alloc(GFP_NOIO, 1);
+ if (!bio) {
+ ret = -ENOMEM;
+ goto failed_bio_alloc;
+ }
+
+ page = alloc_page(GFP_NOIO);
+ if (!page) {
+ ret = -ENOMEM;
+ goto failed_to_alloc_page;
+ }
+
+ access_last_sector = 0;
+ ret = invalidate_vbmeta_submit(bio, bdev, REQ_OP_READ,
+ access_last_sector, page);
+ if (ret) {
+ DMERR("invalidate_vbmeta: error reading");
+ goto failed_to_submit_read;
+ }
+
+ /* We have a page. Let's make sure it looks right. */
+ if (memcmp("AVB0", page_address(page), 4) == 0) {
+ /* Stamp it. */
+ memcpy(page_address(page), "AVE0", 4);
+ DMINFO("invalidate_vbmeta: found vbmeta partition");
+ } else {
+ /* Could be this is on a AVB footer, check. Also, since the
+ * AVB footer is in the last 64 bytes, adjust for the fact that
+ * we're dealing with 512-byte sectors.
+ */
+ size_t offset = (1<<SECTOR_SHIFT) - 64;
+
+ access_last_sector = 1;
+ ret = invalidate_vbmeta_submit(bio, bdev, REQ_OP_READ,
+ access_last_sector, page);
+ if (ret) {
+ DMERR("invalidate_vbmeta: error reading");
+ goto failed_to_submit_read;
+ }
+ if (memcmp("AVBf", page_address(page) + offset, 4) != 0) {
+ DMERR("invalidate_vbmeta on non-vbmeta partition");
+ ret = -EINVAL;
+ goto invalid_header;
+ }
+ /* Stamp it. */
+ memcpy(page_address(page) + offset, "AVE0", 4);
+ DMINFO("invalidate_vbmeta: found vbmeta footer partition");
+ }
+
+ /* Now rewrite the changed page - the block dev was being
+ * changed on read. Let's reopen here.
+ */
+ blkdev_put(bdev, dev_mode);
+ dev_mode = FMODE_WRITE | FMODE_EXCL;
+ bdev = blkdev_get_by_dev(vbmeta_devt, dev_mode,
+ invalidate_vbmeta);
+ if (IS_ERR(bdev)) {
+ DMERR("invalidate_vbmeta: could not open device for writing");
+ dev_mode = 0;
+ ret = -ENOENT;
+ goto failed_to_write;
+ }
+
+ /* We re-use the same bio to do the write after the read. Need to reset
+ * it to initialize bio->bi_remaining.
+ */
+ bio_reset(bio);
+
+ ret = invalidate_vbmeta_submit(bio, bdev, REQ_OP_WRITE,
+ access_last_sector, page);
+ if (ret) {
+ DMERR("invalidate_vbmeta: error writing");
+ goto failed_to_submit_write;
+ }
+
+ DMERR("invalidate_vbmeta: completed.");
+ ret = 0;
+failed_to_submit_write:
+failed_to_write:
+invalid_header:
+ __free_page(page);
+failed_to_submit_read:
+ /* Technically, we'll leak a page with the pending bio, but
+ * we're about to reboot anyway.
+ */
+failed_to_alloc_page:
+ bio_put(bio);
+failed_bio_alloc:
+ if (dev_mode)
+ blkdev_put(bdev, dev_mode);
+failed_to_read:
+ return ret;
+}
+
+void dm_verity_avb_error_handler(void)
+{
+ dev_t dev;
+
+ DMINFO("AVB error handler called for %s", avb_vbmeta_device);
+
+ if (strcmp(avb_invalidate_on_error, "yes") != 0) {
+ DMINFO("Not configured to invalidate");
+ return;
+ }
+
+ if (avb_vbmeta_device[0] == '\0') {
+ DMERR("avb_vbmeta_device parameter not set");
+ goto fail_no_dev;
+ }
+
+ dev = name_to_dev_t(avb_vbmeta_device);
+ if (!dev) {
+ DMERR("No matching partition for device: %s",
+ avb_vbmeta_device);
+ goto fail_no_dev;
+ }
+
+ invalidate_vbmeta(dev);
+
+fail_no_dev:
+ ;
+}
+
+static int __init dm_verity_avb_init(void)
+{
+ DMINFO("AVB error handler initialized with vbmeta device: %s",
+ avb_vbmeta_device);
+ return 0;
+}
+
+static void __exit dm_verity_avb_exit(void)
+{
+}
+
+module_init(dm_verity_avb_init);
+module_exit(dm_verity_avb_exit);
+
+MODULE_AUTHOR("David Zeuthen <zeuthen@google.com>");
+MODULE_DESCRIPTION("AVB-specific error handler for dm-verity");
+MODULE_LICENSE("GPL");
+
+/* Declare parameter with no module prefix */
+#undef MODULE_PARAM_PREFIX
+#define MODULE_PARAM_PREFIX "androidboot.vbmeta."
+module_param_string(device, avb_vbmeta_device, sizeof(avb_vbmeta_device), 0);
+module_param_string(invalidate_on_error, avb_invalidate_on_error,
+ sizeof(avb_invalidate_on_error), 0);
diff --git a/drivers/md/dm-verity-target.c b/drivers/md/dm-verity-target.c
index fa8c201..20638d1 100644
--- a/drivers/md/dm-verity-target.c
+++ b/drivers/md/dm-verity-target.c
@@ -251,8 +251,12 @@ static int verity_handle_err(struct dm_verity *v, enum verity_block_type type,
if (v->mode == DM_VERITY_MODE_LOGGING)
return 0;
- if (v->mode == DM_VERITY_MODE_RESTART)
+ if (v->mode == DM_VERITY_MODE_RESTART) {
+#ifdef CONFIG_DM_VERITY_AVB
+ dm_verity_avb_error_handler();
+#endif
kernel_restart("dm-verity device corrupted");
+ }
return 1;
}
@@ -1050,6 +1054,15 @@ static int verity_ctr(struct dm_target *ti, unsigned argc, char **argv)
v->tfm = NULL;
goto bad;
}
+
+ /*
+ * dm-verity performance can vary greatly depending on which hash
+ * algorithm implementation is used. Help people debug performance
+ * problems by logging the ->cra_driver_name.
+ */
+ DMINFO("%s using implementation \"%s\"", v->alg_name,
+ crypto_hash_alg_common(v->tfm)->base.cra_driver_name);
+
v->digest_size = crypto_ahash_digestsize(v->tfm);
if ((1 << v->hash_dev_block_bits) < v->digest_size * 2) {
ti->error = "Digest size too big";
diff --git a/drivers/md/dm-verity.h b/drivers/md/dm-verity.h
index 3441c10..0152d36 100644
--- a/drivers/md/dm-verity.h
+++ b/drivers/md/dm-verity.h
@@ -127,4 +127,6 @@ extern int verity_hash(struct dm_verity *v, struct ahash_request *req,
extern int verity_hash_for_block(struct dm_verity *v, struct dm_verity_io *io,
sector_t block, u8 *digest, bool *is_zero);
+extern void dm_verity_avb_error_handler(void);
+
#endif /* DM_VERITY_H */
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 01bf5bc..3b6b2b8 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -26,6 +26,8 @@
#include <linux/wait.h>
#include <linux/pr.h>
#include <linux/refcount.h>
+#include <linux/blk-crypto.h>
+#include <linux/keyslot-manager.h>
#define DM_MSG_PREFIX "core"
@@ -146,16 +148,6 @@ EXPORT_SYMBOL_GPL(dm_bio_get_target_bio_nr);
#define DM_NUMA_NODE NUMA_NO_NODE
static int dm_numa_node = DM_NUMA_NODE;
-#define DEFAULT_SWAP_BIOS (8 * 1048576 / PAGE_SIZE)
-static int swap_bios = DEFAULT_SWAP_BIOS;
-static int get_swap_bios(void)
-{
- int latch = READ_ONCE(swap_bios);
- if (unlikely(latch <= 0))
- latch = DEFAULT_SWAP_BIOS;
- return latch;
-}
-
/*
* For mempools pre-allocation at the table loading time.
*/
@@ -945,11 +937,6 @@ void disable_write_zeroes(struct mapped_device *md)
limits->max_write_zeroes_sectors = 0;
}
-static bool swap_bios_limit(struct dm_target *ti, struct bio *bio)
-{
- return unlikely((bio->bi_opf & REQ_SWAP) != 0) && unlikely(ti->limit_swap_bios);
-}
-
static void clone_endio(struct bio *bio)
{
blk_status_t error = bio->bi_status;
@@ -987,11 +974,6 @@ static void clone_endio(struct bio *bio)
}
}
- if (unlikely(swap_bios_limit(tio->ti, bio))) {
- struct mapped_device *md = io->md;
- up(&md->swap_bios_semaphore);
- }
-
free_tio(tio);
dec_pending(io, error);
}
@@ -1270,22 +1252,6 @@ void dm_remap_zone_report(struct dm_target *ti, struct bio *bio, sector_t start)
}
EXPORT_SYMBOL_GPL(dm_remap_zone_report);
-static noinline void __set_swap_bios_limit(struct mapped_device *md, int latch)
-{
- mutex_lock(&md->swap_bios_lock);
- while (latch < md->swap_bios) {
- cond_resched();
- down(&md->swap_bios_semaphore);
- md->swap_bios--;
- }
- while (latch > md->swap_bios) {
- cond_resched();
- up(&md->swap_bios_semaphore);
- md->swap_bios++;
- }
- mutex_unlock(&md->swap_bios_lock);
-}
-
static blk_qc_t __map_bio(struct dm_target_io *tio)
{
int r;
@@ -1306,14 +1272,6 @@ static blk_qc_t __map_bio(struct dm_target_io *tio)
atomic_inc(&io->io_count);
sector = clone->bi_iter.bi_sector;
- if (unlikely(swap_bios_limit(ti, clone))) {
- struct mapped_device *md = io->md;
- int latch = get_swap_bios();
- if (unlikely(latch != md->swap_bios))
- __set_swap_bios_limit(md, latch);
- down(&md->swap_bios_semaphore);
- }
-
r = ti->type->map(ti, clone);
switch (r) {
case DM_MAPIO_SUBMITTED:
@@ -1328,18 +1286,10 @@ static blk_qc_t __map_bio(struct dm_target_io *tio)
ret = generic_make_request(clone);
break;
case DM_MAPIO_KILL:
- if (unlikely(swap_bios_limit(ti, clone))) {
- struct mapped_device *md = io->md;
- up(&md->swap_bios_semaphore);
- }
free_tio(tio);
dec_pending(io, BLK_STS_IOERR);
break;
case DM_MAPIO_REQUEUE:
- if (unlikely(swap_bios_limit(ti, clone))) {
- struct mapped_device *md = io->md;
- up(&md->swap_bios_semaphore);
- }
free_tio(tio);
dec_pending(io, BLK_STS_DM_REQUEUE);
break;
@@ -1367,9 +1317,10 @@ static int clone_bio(struct dm_target_io *tio, struct bio *bio,
__bio_clone_fast(clone, bio);
+ bio_crypt_clone(clone, bio, GFP_NOIO);
+
if (unlikely(bio_integrity(bio) != NULL)) {
int r;
-
if (unlikely(!dm_target_has_integrity(tio->ti->type) &&
!dm_target_passes_integrity(tio->ti->type))) {
DMWARN("%s: the target %s doesn't support integrity data.",
@@ -1875,6 +1826,8 @@ static void dm_init_normal_md_queue(struct mapped_device *md)
md->queue->backing_dev_info->congested_fn = dm_any_congested;
}
+static void dm_destroy_inline_encryption(struct request_queue *q);
+
static void cleanup_mapped_device(struct mapped_device *md)
{
if (md->wq)
@@ -1898,8 +1851,10 @@ static void cleanup_mapped_device(struct mapped_device *md)
put_disk(md->disk);
}
- if (md->queue)
+ if (md->queue) {
+ dm_destroy_inline_encryption(md->queue);
blk_cleanup_queue(md->queue);
+ }
cleanup_srcu_struct(&md->io_barrier);
@@ -1911,7 +1866,6 @@ static void cleanup_mapped_device(struct mapped_device *md)
mutex_destroy(&md->suspend_lock);
mutex_destroy(&md->type_lock);
mutex_destroy(&md->table_devices_lock);
- mutex_destroy(&md->swap_bios_lock);
dm_mq_cleanup_mapped_device(md);
}
@@ -1986,10 +1940,6 @@ static struct mapped_device *alloc_dev(int minor)
init_completion(&md->kobj_holder.completion);
md->kworker_task = NULL;
- md->swap_bios = get_swap_bios();
- sema_init(&md->swap_bios_semaphore, md->swap_bios);
- mutex_init(&md->swap_bios_lock);
-
md->disk->major = _major;
md->disk->first_minor = minor;
md->disk->fops = &dm_blk_dops;
@@ -2277,6 +2227,166 @@ struct queue_limits *dm_get_queue_limits(struct mapped_device *md)
}
EXPORT_SYMBOL_GPL(dm_get_queue_limits);
+#ifdef CONFIG_BLK_INLINE_ENCRYPTION
+struct dm_keyslot_evict_args {
+ const struct blk_crypto_key *key;
+ int err;
+};
+
+static int dm_keyslot_evict_callback(struct dm_target *ti, struct dm_dev *dev,
+ sector_t start, sector_t len, void *data)
+{
+ struct dm_keyslot_evict_args *args = data;
+ int err;
+
+ err = blk_crypto_evict_key(dev->bdev->bd_queue, args->key);
+ if (!args->err)
+ args->err = err;
+ /* Always try to evict the key from all devices. */
+ return 0;
+}
+
+/*
+ * When an inline encryption key is evicted from a device-mapper device, evict
+ * it from all the underlying devices.
+ */
+static int dm_keyslot_evict(struct keyslot_manager *ksm,
+ const struct blk_crypto_key *key, unsigned int slot)
+{
+ struct mapped_device *md = keyslot_manager_private(ksm);
+ struct dm_keyslot_evict_args args = { key };
+ struct dm_table *t;
+ int srcu_idx;
+ int i;
+ struct dm_target *ti;
+
+ t = dm_get_live_table(md, &srcu_idx);
+ if (!t)
+ return 0;
+ for (i = 0; i < dm_table_get_num_targets(t); i++) {
+ ti = dm_table_get_target(t, i);
+ if (!ti->type->iterate_devices)
+ continue;
+ ti->type->iterate_devices(ti, dm_keyslot_evict_callback, &args);
+ }
+ dm_put_live_table(md, srcu_idx);
+ return args.err;
+}
+
+struct dm_derive_raw_secret_args {
+ const u8 *wrapped_key;
+ unsigned int wrapped_key_size;
+ u8 *secret;
+ unsigned int secret_size;
+ int err;
+};
+
+static int dm_derive_raw_secret_callback(struct dm_target *ti,
+ struct dm_dev *dev, sector_t start,
+ sector_t len, void *data)
+{
+ struct dm_derive_raw_secret_args *args = data;
+ struct request_queue *q = dev->bdev->bd_queue;
+
+ if (!args->err)
+ return 0;
+
+ if (!q->ksm) {
+ args->err = -EOPNOTSUPP;
+ return 0;
+ }
+
+ args->err = keyslot_manager_derive_raw_secret(q->ksm, args->wrapped_key,
+ args->wrapped_key_size,
+ args->secret,
+ args->secret_size);
+ /* Try another device in case this fails. */
+ return 0;
+}
+
+/*
+ * Retrieve the raw_secret from the underlying device. Given that
+ * only only one raw_secret can exist for a particular wrappedkey,
+ * retrieve it only from the first device that supports derive_raw_secret()
+ */
+static int dm_derive_raw_secret(struct keyslot_manager *ksm,
+ const u8 *wrapped_key,
+ unsigned int wrapped_key_size,
+ u8 *secret, unsigned int secret_size)
+{
+ struct mapped_device *md = keyslot_manager_private(ksm);
+ struct dm_derive_raw_secret_args args = {
+ .wrapped_key = wrapped_key,
+ .wrapped_key_size = wrapped_key_size,
+ .secret = secret,
+ .secret_size = secret_size,
+ .err = -EOPNOTSUPP,
+ };
+ struct dm_table *t;
+ int srcu_idx;
+ int i;
+ struct dm_target *ti;
+
+ t = dm_get_live_table(md, &srcu_idx);
+ if (!t)
+ return -EOPNOTSUPP;
+ for (i = 0; i < dm_table_get_num_targets(t); i++) {
+ ti = dm_table_get_target(t, i);
+ if (!ti->type->iterate_devices)
+ continue;
+ ti->type->iterate_devices(ti, dm_derive_raw_secret_callback,
+ &args);
+ if (!args.err)
+ break;
+ }
+ dm_put_live_table(md, srcu_idx);
+ return args.err;
+}
+
+static struct keyslot_mgmt_ll_ops dm_ksm_ll_ops = {
+ .keyslot_evict = dm_keyslot_evict,
+ .derive_raw_secret = dm_derive_raw_secret,
+};
+
+static int dm_init_inline_encryption(struct mapped_device *md)
+{
+ unsigned int features;
+ unsigned int mode_masks[BLK_ENCRYPTION_MODE_MAX];
+
+ /*
+ * Initially declare support for all crypto settings. Anything
+ * unsupported by a child device will be removed later when calculating
+ * the device restrictions.
+ */
+ features = BLK_CRYPTO_FEATURE_STANDARD_KEYS |
+ BLK_CRYPTO_FEATURE_WRAPPED_KEYS;
+ memset(mode_masks, 0xFF, sizeof(mode_masks));
+
+ md->queue->ksm = keyslot_manager_create_passthrough(NULL,
+ &dm_ksm_ll_ops,
+ features,
+ mode_masks, md);
+ if (!md->queue->ksm)
+ return -ENOMEM;
+ return 0;
+}
+
+static void dm_destroy_inline_encryption(struct request_queue *q)
+{
+ keyslot_manager_destroy(q->ksm);
+ q->ksm = NULL;
+}
+#else /* CONFIG_BLK_INLINE_ENCRYPTION */
+static inline int dm_init_inline_encryption(struct mapped_device *md)
+{
+ return 0;
+}
+
+static inline void dm_destroy_inline_encryption(struct request_queue *q)
+{
+}
+#endif /* !CONFIG_BLK_INLINE_ENCRYPTION */
+
/*
* Setup the DM device's queue based on md's type
*/
@@ -2320,6 +2430,13 @@ int dm_setup_md_queue(struct mapped_device *md, struct dm_table *t)
DMERR("Cannot calculate initial queue limits");
return r;
}
+
+ r = dm_init_inline_encryption(md);
+ if (r) {
+ DMERR("Cannot initialize inline encryption");
+ return r;
+ }
+
dm_table_set_restrictions(t, md->queue, &limits);
blk_register_queue(md->disk);
@@ -3285,9 +3402,6 @@ MODULE_PARM_DESC(reserved_bio_based_ios, "Reserved IOs in bio-based mempools");
module_param(dm_numa_node, int, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(dm_numa_node, "NUMA node for DM device memory allocations");
-module_param(swap_bios, int, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(swap_bios, "Maximum allowed inflight swap IOs");
-
MODULE_DESCRIPTION(DM_NAME " driver");
MODULE_AUTHOR("Joe Thornber <dm-devel@redhat.com>");
MODULE_LICENSE("GPL");
diff --git a/drivers/media/i2c/saa6588.c b/drivers/media/i2c/saa6588.c
index c074e51..33d2987 100644
--- a/drivers/media/i2c/saa6588.c
+++ b/drivers/media/i2c/saa6588.c
@@ -392,7 +392,7 @@ static void saa6588_configure(struct saa6588 *s)
/* ---------------------------------------------------------------------- */
-static long saa6588_command(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
+static long saa6588_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
{
struct saa6588 *s = to_saa6588(sd);
struct saa6588_command *a = arg;
@@ -445,7 +445,7 @@ static int saa6588_s_tuner(struct v4l2_subdev *sd, const struct v4l2_tuner *vt)
/* ----------------------------------------------------------------------- */
static const struct v4l2_subdev_core_ops saa6588_core_ops = {
- .command = saa6588_command,
+ .ioctl = saa6588_ioctl,
};
static const struct v4l2_subdev_tuner_ops saa6588_tuner_ops = {
diff --git a/drivers/media/pci/bt8xx/bttv-driver.c b/drivers/media/pci/bt8xx/bttv-driver.c
index 2a9d254..4c042ba 100644
--- a/drivers/media/pci/bt8xx/bttv-driver.c
+++ b/drivers/media/pci/bt8xx/bttv-driver.c
@@ -3243,7 +3243,7 @@ static int radio_release(struct file *file)
btv->radio_user--;
- bttv_call_all(btv, core, command, SAA6588_CMD_CLOSE, &cmd);
+ bttv_call_all(btv, core, ioctl, SAA6588_CMD_CLOSE, &cmd);
if (btv->radio_user == 0)
btv->has_radio_tuner = 0;
@@ -3324,7 +3324,7 @@ static ssize_t radio_read(struct file *file, char __user *data,
cmd.result = -ENODEV;
radio_enable(btv);
- bttv_call_all(btv, core, command, SAA6588_CMD_READ, &cmd);
+ bttv_call_all(btv, core, ioctl, SAA6588_CMD_READ, &cmd);
return cmd.result;
}
@@ -3345,7 +3345,7 @@ static __poll_t radio_poll(struct file *file, poll_table *wait)
cmd.instance = file;
cmd.event_list = wait;
cmd.poll_mask = res;
- bttv_call_all(btv, core, command, SAA6588_CMD_POLL, &cmd);
+ bttv_call_all(btv, core, ioctl, SAA6588_CMD_POLL, &cmd);
return cmd.poll_mask;
}
diff --git a/drivers/media/pci/saa7134/saa7134-video.c b/drivers/media/pci/saa7134/saa7134-video.c
index 0792192..1a50ec9 100644
--- a/drivers/media/pci/saa7134/saa7134-video.c
+++ b/drivers/media/pci/saa7134/saa7134-video.c
@@ -1202,7 +1202,7 @@ static int video_release(struct file *file)
saa_call_all(dev, tuner, standby);
if (vdev->vfl_type == VFL_TYPE_RADIO)
- saa_call_all(dev, core, command, SAA6588_CMD_CLOSE, &cmd);
+ saa_call_all(dev, core, ioctl, SAA6588_CMD_CLOSE, &cmd);
mutex_unlock(&dev->lock);
return 0;
@@ -1221,7 +1221,7 @@ static ssize_t radio_read(struct file *file, char __user *data,
cmd.result = -ENODEV;
mutex_lock(&dev->lock);
- saa_call_all(dev, core, command, SAA6588_CMD_READ, &cmd);
+ saa_call_all(dev, core, ioctl, SAA6588_CMD_READ, &cmd);
mutex_unlock(&dev->lock);
return cmd.result;
@@ -1237,7 +1237,7 @@ static __poll_t radio_poll(struct file *file, poll_table *wait)
cmd.event_list = wait;
cmd.poll_mask = 0;
mutex_lock(&dev->lock);
- saa_call_all(dev, core, command, SAA6588_CMD_POLL, &cmd);
+ saa_call_all(dev, core, ioctl, SAA6588_CMD_POLL, &cmd);
mutex_unlock(&dev->lock);
return rc | cmd.poll_mask;
diff --git a/drivers/media/platform/davinci/vpbe_display.c b/drivers/media/platform/davinci/vpbe_display.c
index 2a073a6..6f82693 100644
--- a/drivers/media/platform/davinci/vpbe_display.c
+++ b/drivers/media/platform/davinci/vpbe_display.c
@@ -60,7 +60,7 @@ static int venc_is_second_field(struct vpbe_display *disp_dev)
ret = v4l2_subdev_call(vpbe_dev->venc,
core,
- command,
+ ioctl,
VENC_GET_FLD,
&val);
if (ret < 0) {
diff --git a/drivers/media/platform/davinci/vpbe_venc.c b/drivers/media/platform/davinci/vpbe_venc.c
index c2cfaa9..ddcad7b 100644
--- a/drivers/media/platform/davinci/vpbe_venc.c
+++ b/drivers/media/platform/davinci/vpbe_venc.c
@@ -534,7 +534,9 @@ static int venc_s_routing(struct v4l2_subdev *sd, u32 input, u32 output,
return ret;
}
-static long venc_command(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
+static long venc_ioctl(struct v4l2_subdev *sd,
+ unsigned int cmd,
+ void *arg)
{
u32 val;
@@ -553,7 +555,7 @@ static long venc_command(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
}
static const struct v4l2_subdev_core_ops venc_core_ops = {
- .command = venc_command,
+ .ioctl = venc_ioctl,
};
static const struct v4l2_subdev_video_ops venc_video_ops = {
diff --git a/drivers/media/rc/bpf-lirc.c b/drivers/media/rc/bpf-lirc.c
index 5a0e26e4..ca00c6c 100644
--- a/drivers/media/rc/bpf-lirc.c
+++ b/drivers/media/rc/bpf-lirc.c
@@ -75,6 +75,8 @@ lirc_mode2_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
return &bpf_map_delete_elem_proto;
case BPF_FUNC_ktime_get_ns:
return &bpf_ktime_get_ns_proto;
+ case BPF_FUNC_ktime_get_boot_ns:
+ return &bpf_ktime_get_boot_ns_proto;
case BPF_FUNC_tail_call:
return &bpf_tail_call_proto;
case BPF_FUNC_get_prandom_u32:
diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
index f4ebff3..5f5d25f 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -338,6 +338,10 @@ const char * const *v4l2_ctrl_get_menu(u32 id)
"4.2",
"5",
"5.1",
+ "5.2",
+ "6.0",
+ "6.1",
+ "6.2",
NULL,
};
static const char * const h264_loop_filter[] = {
@@ -364,6 +368,7 @@ const char * const *v4l2_ctrl_get_menu(u32 id)
"Scalable High Intra",
"Stereo High",
"Multiview High",
+ "Constrained High",
NULL,
};
static const char * const vui_sar_idc[] = {
@@ -825,6 +830,7 @@ const char *v4l2_ctrl_get_name(u32 id)
case V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING_LAYER:return "H264 Number of HC Layers";
case V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING_LAYER_QP:
return "H264 Set QP Value for HC Layers";
+ case V4L2_CID_MPEG_VIDEO_H264_CHROMA_QP_INDEX_OFFSET: return "H264 Chroma QP Index Offset";
case V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP: return "MPEG4 I-Frame QP Value";
case V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP: return "MPEG4 P-Frame QP Value";
case V4L2_CID_MPEG_VIDEO_MPEG4_B_FRAME_QP: return "MPEG4 B-Frame QP Value";
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index 76ef797..01ce80a 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -1295,6 +1295,14 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
case V4L2_META_FMT_VSP1_HGO: descr = "R-Car VSP1 1-D Histogram"; break;
case V4L2_META_FMT_VSP1_HGT: descr = "R-Car VSP1 2-D Histogram"; break;
case V4L2_META_FMT_UVC: descr = "UVC payload header metadata"; break;
+ case V4L2_PIX_FMT_NV12_UBWC:
+ descr = "NV12 UBWC"; break;
+ case V4L2_PIX_FMT_SDE_Y_CBCR_H2V2_P010_VENUS:
+ descr = "Y/CbCr 4:2:0 P10 Venus"; break;
+ case V4L2_PIX_FMT_NV12_TP10_UBWC:
+ descr = "Y/CbCr 4:2:0 TP10 UBWC"; break;
+ case V4L2_PIX_FMT_NV12_512:
+ descr = "Y/CbCr 4:2:0 (512 align)"; break;
default:
/* Compressed formats */
@@ -3050,6 +3058,7 @@ video_usercopy(struct file *file, unsigned int cmd, unsigned long arg,
kvfree(mbuf);
return err;
}
+EXPORT_SYMBOL_GPL(video_usercopy);
long video_ioctl2(struct file *file,
unsigned int cmd, unsigned long arg)
diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c
index 2b63fa6..51ef9cf 100644
--- a/drivers/media/v4l2-core/v4l2-subdev.c
+++ b/drivers/media/v4l2-core/v4l2-subdev.c
@@ -583,6 +583,7 @@ const struct v4l2_file_operations v4l2_subdev_fops = {
.release = subdev_close,
.poll = subdev_poll,
};
+EXPORT_SYMBOL_GPL(v4l2_subdev_fops);
#ifdef CONFIG_MEDIA_CONTROLLER
int v4l2_subdev_link_validate_default(struct v4l2_subdev *sd,
diff --git a/drivers/media/v4l2-core/videobuf-dma-contig.c b/drivers/media/v4l2-core/videobuf-dma-contig.c
index f461325..a7a9bcc 100644
--- a/drivers/media/v4l2-core/videobuf-dma-contig.c
+++ b/drivers/media/v4l2-core/videobuf-dma-contig.c
@@ -160,6 +160,7 @@ static void videobuf_dma_contig_user_put(struct videobuf_dma_contig_memory *mem)
static int videobuf_dma_contig_user_get(struct videobuf_dma_contig_memory *mem,
struct videobuf_buffer *vb)
{
+ unsigned long untagged_baddr = untagged_addr(vb->baddr);
struct mm_struct *mm = current->mm;
struct vm_area_struct *vma;
unsigned long prev_pfn, this_pfn;
@@ -167,22 +168,22 @@ static int videobuf_dma_contig_user_get(struct videobuf_dma_contig_memory *mem,
unsigned int offset;
int ret;
- offset = vb->baddr & ~PAGE_MASK;
+ offset = untagged_baddr & ~PAGE_MASK;
mem->size = PAGE_ALIGN(vb->size + offset);
ret = -EINVAL;
down_read(&mm->mmap_sem);
- vma = find_vma(mm, vb->baddr);
+ vma = find_vma(mm, untagged_baddr);
if (!vma)
goto out_up;
- if ((vb->baddr + mem->size) > vma->vm_end)
+ if ((untagged_baddr + mem->size) > vma->vm_end)
goto out_up;
pages_done = 0;
prev_pfn = 0; /* kill warning */
- user_address = vb->baddr;
+ user_address = untagged_baddr;
while (pages_done < (mem->size >> PAGE_SHIFT)) {
ret = follow_pfn(vma, user_address, &this_pfn);
diff --git a/drivers/memstick/core/ms_block.c b/drivers/memstick/core/ms_block.c
index 8a02f11..716fc8e 100644
--- a/drivers/memstick/core/ms_block.c
+++ b/drivers/memstick/core/ms_block.c
@@ -2146,7 +2146,7 @@ static int msb_init_disk(struct memstick_dev *card)
set_disk_ro(msb->disk, 1);
msb_start(card);
- device_add_disk(&card->dev, msb->disk, NULL);
+ device_add_disk(&card->dev, msb->disk);
dbg("Disk added");
return 0;
diff --git a/drivers/memstick/core/mspro_block.c b/drivers/memstick/core/mspro_block.c
index 0cd30dc..5ee9326 100644
--- a/drivers/memstick/core/mspro_block.c
+++ b/drivers/memstick/core/mspro_block.c
@@ -1236,7 +1236,7 @@ static int mspro_block_init_disk(struct memstick_dev *card)
set_capacity(msb->disk, capacity);
dev_dbg(&card->dev, "capacity set %ld\n", capacity);
- device_add_disk(&card->dev, msb->disk, NULL);
+ device_add_disk(&card->dev, msb->disk);
msb->active = 1;
return 0;
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 3726eac..241e3d9 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -513,6 +513,21 @@
tristate
default MISC_RTSX_PCI || MISC_RTSX_USB
+config UID_SYS_STATS
+ bool "Per-UID statistics"
+ depends on PROFILING && TASK_XACCT && TASK_IO_ACCOUNTING
+ help
+ Per UID based cpu time statistics exported to /proc/uid_cputime
+ Per UID based io statistics exported to /proc/uid_io
+ Per UID based procstat control in /proc/uid_procstat
+
+config UID_SYS_STATS_DEBUG
+ bool "Per-TASK statistics"
+ depends on UID_SYS_STATS
+ default n
+ help
+ Per TASK based io statistics exported to /proc/uid_io
+
source "drivers/misc/c2port/Kconfig"
source "drivers/misc/eeprom/Kconfig"
source "drivers/misc/cb710/Kconfig"
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index af22bbc..fca6aae0 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -58,3 +58,4 @@
obj-$(CONFIG_PCI_ENDPOINT_TEST) += pci_endpoint_test.o
obj-$(CONFIG_OCXL) += ocxl/
obj-$(CONFIG_MISC_RTSX) += cardreader/
+obj-$(CONFIG_UID_SYS_STATS) += uid_sys_stats.o
diff --git a/drivers/misc/lkdtm/Makefile b/drivers/misc/lkdtm/Makefile
index aeb960c..02ce8ff 100644
--- a/drivers/misc/lkdtm/Makefile
+++ b/drivers/misc/lkdtm/Makefile
@@ -10,6 +10,7 @@
lkdtm-$(CONFIG_LKDTM) += usercopy.o
KCOV_INSTRUMENT_rodata.o := n
+CFLAGS_rodata.o += $(DISABLE_LTO)
OBJCOPYFLAGS :=
OBJCOPYFLAGS_rodata_objcopy.o := \
diff --git a/drivers/misc/uid_sys_stats.c b/drivers/misc/uid_sys_stats.c
new file mode 100644
index 0000000..cb027ed
--- /dev/null
+++ b/drivers/misc/uid_sys_stats.c
@@ -0,0 +1,711 @@
+/* drivers/misc/uid_sys_stats.c
+ *
+ * Copyright (C) 2014 - 2015 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/atomic.h>
+#include <linux/cpufreq_times.h>
+#include <linux/err.h>
+#include <linux/hashtable.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/mm.h>
+#include <linux/proc_fs.h>
+#include <linux/profile.h>
+#include <linux/rtmutex.h>
+#include <linux/sched/cputime.h>
+#include <linux/seq_file.h>
+#include <linux/slab.h>
+#include <linux/uaccess.h>
+
+
+#define UID_HASH_BITS 10
+DECLARE_HASHTABLE(hash_table, UID_HASH_BITS);
+
+static DEFINE_RT_MUTEX(uid_lock);
+static struct proc_dir_entry *cpu_parent;
+static struct proc_dir_entry *io_parent;
+static struct proc_dir_entry *proc_parent;
+
+struct io_stats {
+ u64 read_bytes;
+ u64 write_bytes;
+ u64 rchar;
+ u64 wchar;
+ u64 fsync;
+};
+
+#define UID_STATE_FOREGROUND 0
+#define UID_STATE_BACKGROUND 1
+#define UID_STATE_BUCKET_SIZE 2
+
+#define UID_STATE_TOTAL_CURR 2
+#define UID_STATE_TOTAL_LAST 3
+#define UID_STATE_DEAD_TASKS 4
+#define UID_STATE_SIZE 5
+
+#define MAX_TASK_COMM_LEN 256
+
+struct task_entry {
+ char comm[MAX_TASK_COMM_LEN];
+ pid_t pid;
+ struct io_stats io[UID_STATE_SIZE];
+ struct hlist_node hash;
+};
+
+struct uid_entry {
+ uid_t uid;
+ u64 utime;
+ u64 stime;
+ u64 active_utime;
+ u64 active_stime;
+ int state;
+ struct io_stats io[UID_STATE_SIZE];
+ struct hlist_node hash;
+#ifdef CONFIG_UID_SYS_STATS_DEBUG
+ DECLARE_HASHTABLE(task_entries, UID_HASH_BITS);
+#endif
+};
+
+static u64 compute_write_bytes(struct task_struct *task)
+{
+ if (task->ioac.write_bytes <= task->ioac.cancelled_write_bytes)
+ return 0;
+
+ return task->ioac.write_bytes - task->ioac.cancelled_write_bytes;
+}
+
+static void compute_io_bucket_stats(struct io_stats *io_bucket,
+ struct io_stats *io_curr,
+ struct io_stats *io_last,
+ struct io_stats *io_dead)
+{
+ /* tasks could switch to another uid group, but its io_last in the
+ * previous uid group could still be positive.
+ * therefore before each update, do an overflow check first
+ */
+ int64_t delta;
+
+ delta = io_curr->read_bytes + io_dead->read_bytes -
+ io_last->read_bytes;
+ io_bucket->read_bytes += delta > 0 ? delta : 0;
+ delta = io_curr->write_bytes + io_dead->write_bytes -
+ io_last->write_bytes;
+ io_bucket->write_bytes += delta > 0 ? delta : 0;
+ delta = io_curr->rchar + io_dead->rchar - io_last->rchar;
+ io_bucket->rchar += delta > 0 ? delta : 0;
+ delta = io_curr->wchar + io_dead->wchar - io_last->wchar;
+ io_bucket->wchar += delta > 0 ? delta : 0;
+ delta = io_curr->fsync + io_dead->fsync - io_last->fsync;
+ io_bucket->fsync += delta > 0 ? delta : 0;
+
+ io_last->read_bytes = io_curr->read_bytes;
+ io_last->write_bytes = io_curr->write_bytes;
+ io_last->rchar = io_curr->rchar;
+ io_last->wchar = io_curr->wchar;
+ io_last->fsync = io_curr->fsync;
+
+ memset(io_dead, 0, sizeof(struct io_stats));
+}
+
+#ifdef CONFIG_UID_SYS_STATS_DEBUG
+static void get_full_task_comm(struct task_entry *task_entry,
+ struct task_struct *task)
+{
+ int i = 0, offset = 0, len = 0;
+ /* save one byte for terminating null character */
+ int unused_len = MAX_TASK_COMM_LEN - TASK_COMM_LEN - 1;
+ char buf[MAX_TASK_COMM_LEN - TASK_COMM_LEN - 1];
+ struct mm_struct *mm = task->mm;
+
+ /* fill the first TASK_COMM_LEN bytes with thread name */
+ __get_task_comm(task_entry->comm, TASK_COMM_LEN, task);
+ i = strlen(task_entry->comm);
+ while (i < TASK_COMM_LEN)
+ task_entry->comm[i++] = ' ';
+
+ /* next the executable file name */
+ if (mm) {
+ down_read(&mm->mmap_sem);
+ if (mm->exe_file) {
+ char *pathname = d_path(&mm->exe_file->f_path, buf,
+ unused_len);
+
+ if (!IS_ERR(pathname)) {
+ len = strlcpy(task_entry->comm + i, pathname,
+ unused_len);
+ i += len;
+ task_entry->comm[i++] = ' ';
+ unused_len--;
+ }
+ }
+ up_read(&mm->mmap_sem);
+ }
+ unused_len -= len;
+
+ /* fill the rest with command line argument
+ * replace each null or new line character
+ * between args in argv with whitespace */
+ len = get_cmdline(task, buf, unused_len);
+ while (offset < len) {
+ if (buf[offset] != '\0' && buf[offset] != '\n')
+ task_entry->comm[i++] = buf[offset];
+ else
+ task_entry->comm[i++] = ' ';
+ offset++;
+ }
+
+ /* get rid of trailing whitespaces in case when arg is memset to
+ * zero before being reset in userspace
+ */
+ while (task_entry->comm[i-1] == ' ')
+ i--;
+ task_entry->comm[i] = '\0';
+}
+
+static struct task_entry *find_task_entry(struct uid_entry *uid_entry,
+ struct task_struct *task)
+{
+ struct task_entry *task_entry;
+
+ hash_for_each_possible(uid_entry->task_entries, task_entry, hash,
+ task->pid) {
+ if (task->pid == task_entry->pid) {
+ /* if thread name changed, update the entire command */
+ int len = strnchr(task_entry->comm, ' ', TASK_COMM_LEN)
+ - task_entry->comm;
+
+ if (strncmp(task_entry->comm, task->comm, len))
+ get_full_task_comm(task_entry, task);
+ return task_entry;
+ }
+ }
+ return NULL;
+}
+
+static struct task_entry *find_or_register_task(struct uid_entry *uid_entry,
+ struct task_struct *task)
+{
+ struct task_entry *task_entry;
+ pid_t pid = task->pid;
+
+ task_entry = find_task_entry(uid_entry, task);
+ if (task_entry)
+ return task_entry;
+
+ task_entry = kzalloc(sizeof(struct task_entry), GFP_ATOMIC);
+ if (!task_entry)
+ return NULL;
+
+ get_full_task_comm(task_entry, task);
+
+ task_entry->pid = pid;
+ hash_add(uid_entry->task_entries, &task_entry->hash, (unsigned int)pid);
+
+ return task_entry;
+}
+
+static void remove_uid_tasks(struct uid_entry *uid_entry)
+{
+ struct task_entry *task_entry;
+ unsigned long bkt_task;
+ struct hlist_node *tmp_task;
+
+ hash_for_each_safe(uid_entry->task_entries, bkt_task,
+ tmp_task, task_entry, hash) {
+ hash_del(&task_entry->hash);
+ kfree(task_entry);
+ }
+}
+
+static void set_io_uid_tasks_zero(struct uid_entry *uid_entry)
+{
+ struct task_entry *task_entry;
+ unsigned long bkt_task;
+
+ hash_for_each(uid_entry->task_entries, bkt_task, task_entry, hash) {
+ memset(&task_entry->io[UID_STATE_TOTAL_CURR], 0,
+ sizeof(struct io_stats));
+ }
+}
+
+static void add_uid_tasks_io_stats(struct uid_entry *uid_entry,
+ struct task_struct *task, int slot)
+{
+ struct task_entry *task_entry = find_or_register_task(uid_entry, task);
+ struct io_stats *task_io_slot = &task_entry->io[slot];
+
+ task_io_slot->read_bytes += task->ioac.read_bytes;
+ task_io_slot->write_bytes += compute_write_bytes(task);
+ task_io_slot->rchar += task->ioac.rchar;
+ task_io_slot->wchar += task->ioac.wchar;
+ task_io_slot->fsync += task->ioac.syscfs;
+}
+
+static void compute_io_uid_tasks(struct uid_entry *uid_entry)
+{
+ struct task_entry *task_entry;
+ unsigned long bkt_task;
+
+ hash_for_each(uid_entry->task_entries, bkt_task, task_entry, hash) {
+ compute_io_bucket_stats(&task_entry->io[uid_entry->state],
+ &task_entry->io[UID_STATE_TOTAL_CURR],
+ &task_entry->io[UID_STATE_TOTAL_LAST],
+ &task_entry->io[UID_STATE_DEAD_TASKS]);
+ }
+}
+
+static void show_io_uid_tasks(struct seq_file *m, struct uid_entry *uid_entry)
+{
+ struct task_entry *task_entry;
+ unsigned long bkt_task;
+
+ hash_for_each(uid_entry->task_entries, bkt_task, task_entry, hash) {
+ /* Separated by comma because space exists in task comm */
+ seq_printf(m, "task,%s,%lu,%llu,%llu,%llu,%llu,%llu,%llu,%llu,%llu,%llu,%llu\n",
+ task_entry->comm,
+ (unsigned long)task_entry->pid,
+ task_entry->io[UID_STATE_FOREGROUND].rchar,
+ task_entry->io[UID_STATE_FOREGROUND].wchar,
+ task_entry->io[UID_STATE_FOREGROUND].read_bytes,
+ task_entry->io[UID_STATE_FOREGROUND].write_bytes,
+ task_entry->io[UID_STATE_BACKGROUND].rchar,
+ task_entry->io[UID_STATE_BACKGROUND].wchar,
+ task_entry->io[UID_STATE_BACKGROUND].read_bytes,
+ task_entry->io[UID_STATE_BACKGROUND].write_bytes,
+ task_entry->io[UID_STATE_FOREGROUND].fsync,
+ task_entry->io[UID_STATE_BACKGROUND].fsync);
+ }
+}
+#else
+static void remove_uid_tasks(struct uid_entry *uid_entry) {};
+static void set_io_uid_tasks_zero(struct uid_entry *uid_entry) {};
+static void add_uid_tasks_io_stats(struct uid_entry *uid_entry,
+ struct task_struct *task, int slot) {};
+static void compute_io_uid_tasks(struct uid_entry *uid_entry) {};
+static void show_io_uid_tasks(struct seq_file *m,
+ struct uid_entry *uid_entry) {}
+#endif
+
+static struct uid_entry *find_uid_entry(uid_t uid)
+{
+ struct uid_entry *uid_entry;
+ hash_for_each_possible(hash_table, uid_entry, hash, uid) {
+ if (uid_entry->uid == uid)
+ return uid_entry;
+ }
+ return NULL;
+}
+
+static struct uid_entry *find_or_register_uid(uid_t uid)
+{
+ struct uid_entry *uid_entry;
+
+ uid_entry = find_uid_entry(uid);
+ if (uid_entry)
+ return uid_entry;
+
+ uid_entry = kzalloc(sizeof(struct uid_entry), GFP_ATOMIC);
+ if (!uid_entry)
+ return NULL;
+
+ uid_entry->uid = uid;
+#ifdef CONFIG_UID_SYS_STATS_DEBUG
+ hash_init(uid_entry->task_entries);
+#endif
+ hash_add(hash_table, &uid_entry->hash, uid);
+
+ return uid_entry;
+}
+
+static int uid_cputime_show(struct seq_file *m, void *v)
+{
+ struct uid_entry *uid_entry = NULL;
+ struct task_struct *task, *temp;
+ struct user_namespace *user_ns = current_user_ns();
+ u64 utime;
+ u64 stime;
+ unsigned long bkt;
+ uid_t uid;
+
+ rt_mutex_lock(&uid_lock);
+
+ hash_for_each(hash_table, bkt, uid_entry, hash) {
+ uid_entry->active_stime = 0;
+ uid_entry->active_utime = 0;
+ }
+
+ rcu_read_lock();
+ do_each_thread(temp, task) {
+ uid = from_kuid_munged(user_ns, task_uid(task));
+ if (!uid_entry || uid_entry->uid != uid)
+ uid_entry = find_or_register_uid(uid);
+ if (!uid_entry) {
+ rcu_read_unlock();
+ rt_mutex_unlock(&uid_lock);
+ pr_err("%s: failed to find the uid_entry for uid %d\n",
+ __func__, uid);
+ return -ENOMEM;
+ }
+ /* avoid double accounting of dying threads */
+ if (!(task->flags & PF_EXITING)) {
+ task_cputime_adjusted(task, &utime, &stime);
+ uid_entry->active_utime += utime;
+ uid_entry->active_stime += stime;
+ }
+ } while_each_thread(temp, task);
+ rcu_read_unlock();
+
+ hash_for_each(hash_table, bkt, uid_entry, hash) {
+ u64 total_utime = uid_entry->utime +
+ uid_entry->active_utime;
+ u64 total_stime = uid_entry->stime +
+ uid_entry->active_stime;
+ seq_printf(m, "%d: %llu %llu\n", uid_entry->uid,
+ ktime_to_us(total_utime), ktime_to_us(total_stime));
+ }
+
+ rt_mutex_unlock(&uid_lock);
+ return 0;
+}
+
+static int uid_cputime_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, uid_cputime_show, PDE_DATA(inode));
+}
+
+static const struct file_operations uid_cputime_fops = {
+ .open = uid_cputime_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int uid_remove_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, NULL, NULL);
+}
+
+static ssize_t uid_remove_write(struct file *file,
+ const char __user *buffer, size_t count, loff_t *ppos)
+{
+ struct uid_entry *uid_entry;
+ struct hlist_node *tmp;
+ char uids[128];
+ char *start_uid, *end_uid = NULL;
+ uid_t uid_start = 0, uid_end = 0;
+ u64 uid;
+
+ if (count >= sizeof(uids))
+ count = sizeof(uids) - 1;
+
+ if (copy_from_user(uids, buffer, count))
+ return -EFAULT;
+
+ uids[count] = '\0';
+ end_uid = uids;
+ start_uid = strsep(&end_uid, "-");
+
+ if (!start_uid || !end_uid)
+ return -EINVAL;
+
+ if (kstrtouint(start_uid, 10, &uid_start) != 0 ||
+ kstrtouint(end_uid, 10, &uid_end) != 0) {
+ return -EINVAL;
+ }
+
+ /* Also remove uids from /proc/uid_time_in_state */
+ cpufreq_task_times_remove_uids(uid_start, uid_end);
+
+ rt_mutex_lock(&uid_lock);
+
+ for (uid = uid_start; uid <= uid_end; uid++) {
+ hash_for_each_possible_safe(hash_table, uid_entry, tmp,
+ hash, uid) {
+ if (uid == uid_entry->uid) {
+ remove_uid_tasks(uid_entry);
+ hash_del(&uid_entry->hash);
+ kfree(uid_entry);
+ }
+ }
+ }
+
+ rt_mutex_unlock(&uid_lock);
+ return count;
+}
+
+static const struct file_operations uid_remove_fops = {
+ .open = uid_remove_open,
+ .release = single_release,
+ .write = uid_remove_write,
+};
+
+
+static void add_uid_io_stats(struct uid_entry *uid_entry,
+ struct task_struct *task, int slot)
+{
+ struct io_stats *io_slot = &uid_entry->io[slot];
+
+ /* avoid double accounting of dying threads */
+ if (slot != UID_STATE_DEAD_TASKS && (task->flags & PF_EXITING))
+ return;
+
+ io_slot->read_bytes += task->ioac.read_bytes;
+ io_slot->write_bytes += compute_write_bytes(task);
+ io_slot->rchar += task->ioac.rchar;
+ io_slot->wchar += task->ioac.wchar;
+ io_slot->fsync += task->ioac.syscfs;
+
+ add_uid_tasks_io_stats(uid_entry, task, slot);
+}
+
+static void update_io_stats_all_locked(void)
+{
+ struct uid_entry *uid_entry = NULL;
+ struct task_struct *task, *temp;
+ struct user_namespace *user_ns = current_user_ns();
+ unsigned long bkt;
+ uid_t uid;
+
+ hash_for_each(hash_table, bkt, uid_entry, hash) {
+ memset(&uid_entry->io[UID_STATE_TOTAL_CURR], 0,
+ sizeof(struct io_stats));
+ set_io_uid_tasks_zero(uid_entry);
+ }
+
+ rcu_read_lock();
+ do_each_thread(temp, task) {
+ uid = from_kuid_munged(user_ns, task_uid(task));
+ if (!uid_entry || uid_entry->uid != uid)
+ uid_entry = find_or_register_uid(uid);
+ if (!uid_entry)
+ continue;
+ add_uid_io_stats(uid_entry, task, UID_STATE_TOTAL_CURR);
+ } while_each_thread(temp, task);
+ rcu_read_unlock();
+
+ hash_for_each(hash_table, bkt, uid_entry, hash) {
+ compute_io_bucket_stats(&uid_entry->io[uid_entry->state],
+ &uid_entry->io[UID_STATE_TOTAL_CURR],
+ &uid_entry->io[UID_STATE_TOTAL_LAST],
+ &uid_entry->io[UID_STATE_DEAD_TASKS]);
+ compute_io_uid_tasks(uid_entry);
+ }
+}
+
+static void update_io_stats_uid_locked(struct uid_entry *uid_entry)
+{
+ struct task_struct *task, *temp;
+ struct user_namespace *user_ns = current_user_ns();
+
+ memset(&uid_entry->io[UID_STATE_TOTAL_CURR], 0,
+ sizeof(struct io_stats));
+ set_io_uid_tasks_zero(uid_entry);
+
+ rcu_read_lock();
+ do_each_thread(temp, task) {
+ if (from_kuid_munged(user_ns, task_uid(task)) != uid_entry->uid)
+ continue;
+ add_uid_io_stats(uid_entry, task, UID_STATE_TOTAL_CURR);
+ } while_each_thread(temp, task);
+ rcu_read_unlock();
+
+ compute_io_bucket_stats(&uid_entry->io[uid_entry->state],
+ &uid_entry->io[UID_STATE_TOTAL_CURR],
+ &uid_entry->io[UID_STATE_TOTAL_LAST],
+ &uid_entry->io[UID_STATE_DEAD_TASKS]);
+ compute_io_uid_tasks(uid_entry);
+}
+
+
+static int uid_io_show(struct seq_file *m, void *v)
+{
+ struct uid_entry *uid_entry;
+ unsigned long bkt;
+
+ rt_mutex_lock(&uid_lock);
+
+ update_io_stats_all_locked();
+
+ hash_for_each(hash_table, bkt, uid_entry, hash) {
+ seq_printf(m, "%d %llu %llu %llu %llu %llu %llu %llu %llu %llu %llu\n",
+ uid_entry->uid,
+ uid_entry->io[UID_STATE_FOREGROUND].rchar,
+ uid_entry->io[UID_STATE_FOREGROUND].wchar,
+ uid_entry->io[UID_STATE_FOREGROUND].read_bytes,
+ uid_entry->io[UID_STATE_FOREGROUND].write_bytes,
+ uid_entry->io[UID_STATE_BACKGROUND].rchar,
+ uid_entry->io[UID_STATE_BACKGROUND].wchar,
+ uid_entry->io[UID_STATE_BACKGROUND].read_bytes,
+ uid_entry->io[UID_STATE_BACKGROUND].write_bytes,
+ uid_entry->io[UID_STATE_FOREGROUND].fsync,
+ uid_entry->io[UID_STATE_BACKGROUND].fsync);
+
+ show_io_uid_tasks(m, uid_entry);
+ }
+
+ rt_mutex_unlock(&uid_lock);
+ return 0;
+}
+
+static int uid_io_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, uid_io_show, PDE_DATA(inode));
+}
+
+static const struct file_operations uid_io_fops = {
+ .open = uid_io_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int uid_procstat_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, NULL, NULL);
+}
+
+static ssize_t uid_procstat_write(struct file *file,
+ const char __user *buffer, size_t count, loff_t *ppos)
+{
+ struct uid_entry *uid_entry;
+ uid_t uid;
+ int argc, state;
+ char input[128];
+
+ if (count >= sizeof(input))
+ return -EINVAL;
+
+ if (copy_from_user(input, buffer, count))
+ return -EFAULT;
+
+ input[count] = '\0';
+
+ argc = sscanf(input, "%u %d", &uid, &state);
+ if (argc != 2)
+ return -EINVAL;
+
+ if (state != UID_STATE_BACKGROUND && state != UID_STATE_FOREGROUND)
+ return -EINVAL;
+
+ rt_mutex_lock(&uid_lock);
+
+ uid_entry = find_or_register_uid(uid);
+ if (!uid_entry) {
+ rt_mutex_unlock(&uid_lock);
+ return -EINVAL;
+ }
+
+ if (uid_entry->state == state) {
+ rt_mutex_unlock(&uid_lock);
+ return count;
+ }
+
+ update_io_stats_uid_locked(uid_entry);
+
+ uid_entry->state = state;
+
+ rt_mutex_unlock(&uid_lock);
+
+ return count;
+}
+
+static const struct file_operations uid_procstat_fops = {
+ .open = uid_procstat_open,
+ .release = single_release,
+ .write = uid_procstat_write,
+};
+
+static int process_notifier(struct notifier_block *self,
+ unsigned long cmd, void *v)
+{
+ struct task_struct *task = v;
+ struct uid_entry *uid_entry;
+ u64 utime, stime;
+ uid_t uid;
+
+ if (!task)
+ return NOTIFY_OK;
+
+ rt_mutex_lock(&uid_lock);
+ uid = from_kuid_munged(current_user_ns(), task_uid(task));
+ uid_entry = find_or_register_uid(uid);
+ if (!uid_entry) {
+ pr_err("%s: failed to find uid %d\n", __func__, uid);
+ goto exit;
+ }
+
+ task_cputime_adjusted(task, &utime, &stime);
+ uid_entry->utime += utime;
+ uid_entry->stime += stime;
+
+ add_uid_io_stats(uid_entry, task, UID_STATE_DEAD_TASKS);
+
+exit:
+ rt_mutex_unlock(&uid_lock);
+ return NOTIFY_OK;
+}
+
+static struct notifier_block process_notifier_block = {
+ .notifier_call = process_notifier,
+};
+
+static int __init proc_uid_sys_stats_init(void)
+{
+ hash_init(hash_table);
+
+ cpu_parent = proc_mkdir("uid_cputime", NULL);
+ if (!cpu_parent) {
+ pr_err("%s: failed to create uid_cputime proc entry\n",
+ __func__);
+ goto err;
+ }
+
+ proc_create_data("remove_uid_range", 0222, cpu_parent,
+ &uid_remove_fops, NULL);
+ proc_create_data("show_uid_stat", 0444, cpu_parent,
+ &uid_cputime_fops, NULL);
+
+ io_parent = proc_mkdir("uid_io", NULL);
+ if (!io_parent) {
+ pr_err("%s: failed to create uid_io proc entry\n",
+ __func__);
+ goto err;
+ }
+
+ proc_create_data("stats", 0444, io_parent,
+ &uid_io_fops, NULL);
+
+ proc_parent = proc_mkdir("uid_procstat", NULL);
+ if (!proc_parent) {
+ pr_err("%s: failed to create uid_procstat proc entry\n",
+ __func__);
+ goto err;
+ }
+
+ proc_create_data("set", 0222, proc_parent,
+ &uid_procstat_fops, NULL);
+
+ profile_event_register(PROFILE_TASK_EXIT, &process_notifier_block);
+
+ return 0;
+
+err:
+ remove_proc_subtree("uid_cputime", NULL);
+ remove_proc_subtree("uid_io", NULL);
+ remove_proc_subtree("uid_procstat", NULL);
+ return -ENOMEM;
+}
+
+early_initcall(proc_uid_sys_stats_init);
diff --git a/drivers/mmc/core/Kconfig b/drivers/mmc/core/Kconfig
index 42e8906..ed68de6 100644
--- a/drivers/mmc/core/Kconfig
+++ b/drivers/mmc/core/Kconfig
@@ -80,3 +80,11 @@
This driver is only of interest to those developing or
testing a host driver. Most people should say N here.
+config MMC_CRYPTO
+ bool "MMC Crypto Engine Support"
+ depends on BLK_INLINE_ENCRYPTION
+ help
+ Enable Crypto Engine Support in MMC.
+ Enabling this makes it possible for the kernel to use the crypto
+ capabilities of the MMC device (if present) to perform crypto
+ operations on data being transferred to/from the device.
diff --git a/drivers/mmc/core/Makefile b/drivers/mmc/core/Makefile
index abba078..eb8c769 100644
--- a/drivers/mmc/core/Makefile
+++ b/drivers/mmc/core/Makefile
@@ -18,3 +18,4 @@
mmc_block-objs := block.o queue.o
obj-$(CONFIG_MMC_TEST) += mmc_test.o
obj-$(CONFIG_SDIO_UART) += sdio_uart.o
+mmc_core-$(CONFIG_MMC_CRYPTO) += crypto.o
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index d1cc0fd..d3012a9 100644
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -51,6 +51,7 @@
#include "block.h"
#include "core.h"
#include "card.h"
+#include "crypto.h"
#include "host.h"
#include "bus.h"
#include "mmc_ops.h"
@@ -1323,6 +1324,8 @@ static void mmc_blk_data_prep(struct mmc_queue *mq, struct mmc_queue_req *mqrq,
memset(brq, 0, sizeof(struct mmc_blk_request));
+ mmc_crypto_prepare_req(mqrq);
+
brq->mrq.data = &brq->data;
brq->mrq.tag = req->tag;
@@ -2694,7 +2697,7 @@ static int mmc_add_disk(struct mmc_blk_data *md)
int ret;
struct mmc_card *card = md->queue.card;
- device_add_disk(md->parent, md->disk, NULL);
+ device_add_disk(md->parent, md->disk);
md->force_ro.show = force_ro_show;
md->force_ro.store = force_ro_store;
sysfs_attr_init(&md->force_ro.attr);
diff --git a/drivers/mmc/core/crypto.c b/drivers/mmc/core/crypto.c
new file mode 100644
index 0000000..661e7f8
--- /dev/null
+++ b/drivers/mmc/core/crypto.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2020 Google LLC
+ */
+
+#include <linux/blk-crypto.h>
+#include <linux/blkdev.h>
+#include <linux/keyslot-manager.h>
+#include <linux/mmc/host.h>
+
+#include "core.h"
+#include "queue.h"
+
+void mmc_crypto_setup_queue(struct mmc_host *host, struct request_queue *q)
+{
+ if (host->caps2 & MMC_CAP2_CRYPTO)
+ q->ksm = host->ksm;
+}
+EXPORT_SYMBOL_GPL(mmc_crypto_setup_queue);
+
+void mmc_crypto_free_host(struct mmc_host *host)
+{
+ keyslot_manager_destroy(host->ksm);
+}
+
+void mmc_crypto_prepare_req(struct mmc_queue_req *mqrq)
+{
+ struct request *req = mmc_queue_req_to_req(mqrq);
+ struct mmc_request *mrq = &mqrq->brq.mrq;
+ const struct bio_crypt_ctx *bc;
+
+ if (!bio_crypt_should_process(req))
+ return;
+
+ bc = req->bio->bi_crypt_context;
+ mrq->crypto_key_slot = bc->bc_keyslot;
+ mrq->data_unit_num = bc->bc_dun[0];
+ mrq->crypto_key = bc->bc_key;
+}
+EXPORT_SYMBOL_GPL(mmc_crypto_prepare_req);
diff --git a/drivers/mmc/core/crypto.h b/drivers/mmc/core/crypto.h
new file mode 100644
index 0000000..74145c3
--- /dev/null
+++ b/drivers/mmc/core/crypto.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2020 Google LLC
+ */
+
+#ifndef _MMC_CORE_CRYPTO_H
+#define _MMC_CORE_CRYPTO_H
+
+struct mmc_host;
+struct mmc_queue_req;
+struct request;
+struct request_queue;
+
+#ifdef CONFIG_MMC_CRYPTO
+
+void mmc_crypto_setup_queue(struct mmc_host *host, struct request_queue *q);
+
+void mmc_crypto_free_host(struct mmc_host *host);
+
+void mmc_crypto_prepare_req(struct mmc_queue_req *mqrq);
+
+#else /* CONFIG_MMC_CRYPTO */
+
+static inline void mmc_crypto_setup_queue(struct mmc_host *host,
+ struct request_queue *q) { }
+
+static inline void mmc_crypto_free_host(struct mmc_host *host) { }
+
+static inline void mmc_crypto_prepare_req(struct mmc_queue_req *mqrq) { }
+
+#endif /* CONFIG_MMC_CRYPTO */
+
+#endif /* _MMC_CORE_CRYPTO_H */
diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
index dd1c14d..171332c 100644
--- a/drivers/mmc/core/host.c
+++ b/drivers/mmc/core/host.c
@@ -27,6 +27,7 @@
#include <linux/mmc/slot-gpio.h>
#include "core.h"
+#include "crypto.h"
#include "host.h"
#include "slot-gpio.h"
#include "pwrseq.h"
@@ -439,7 +440,8 @@ int mmc_add_host(struct mmc_host *host)
#endif
mmc_start_host(host);
- mmc_register_pm_notifier(host);
+ if (!(host->pm_flags & MMC_PM_IGNORE_PM_NOTIFY))
+ mmc_register_pm_notifier(host);
return 0;
}
@@ -456,7 +458,8 @@ EXPORT_SYMBOL(mmc_add_host);
*/
void mmc_remove_host(struct mmc_host *host)
{
- mmc_unregister_pm_notifier(host);
+ if (!(host->pm_flags & MMC_PM_IGNORE_PM_NOTIFY))
+ mmc_unregister_pm_notifier(host);
mmc_stop_host(host);
#ifdef CONFIG_DEBUG_FS
@@ -478,6 +481,7 @@ EXPORT_SYMBOL(mmc_remove_host);
*/
void mmc_free_host(struct mmc_host *host)
{
+ mmc_crypto_free_host(host);
mmc_pwrseq_free(host);
put_device(&host->class_dev);
}
diff --git a/drivers/mmc/core/queue.c b/drivers/mmc/core/queue.c
index 9aaf5a2..5caf142 100644
--- a/drivers/mmc/core/queue.c
+++ b/drivers/mmc/core/queue.c
@@ -21,6 +21,7 @@
#include "queue.h"
#include "block.h"
#include "core.h"
+#include "crypto.h"
#include "card.h"
#include "host.h"
@@ -444,6 +445,8 @@ static int mmc_mq_init(struct mmc_queue *mq, struct mmc_card *card,
mmc_setup_queue(mq, card);
+ mmc_crypto_setup_queue(host, mq->queue);
+
return 0;
}
diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c
index 6a41dfa..29c0bfd 100644
--- a/drivers/mtd/mtd_blkdevs.c
+++ b/drivers/mtd/mtd_blkdevs.c
@@ -447,7 +447,7 @@ int add_mtd_blktrans_dev(struct mtd_blktrans_dev *new)
if (new->readonly)
set_disk_ro(gd, 1);
- device_add_disk(&new->mtd->dev, gd, NULL);
+ device_add_disk(&new->mtd->dev, gd);
if (new->disk_attributes) {
ret = sysfs_create_group(&disk_to_dev(gd)->kobj,
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 0652caa..dcfc57b 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -70,6 +70,49 @@
To compile this driver as a module, choose M here: the module
will be called dummy.
+config WIREGUARD
+ tristate "WireGuard secure network tunnel"
+ depends on NET && INET
+ depends on IPV6 || !IPV6
+ select NET_UDP_TUNNEL
+ select DST_CACHE
+ select CRYPTO
+ select CRYPTO_LIB_CURVE25519
+ select CRYPTO_LIB_CHACHA20POLY1305
+ select CRYPTO_LIB_BLAKE2S
+ select CRYPTO_CHACHA20_X86_64 if X86 && 64BIT
+ select CRYPTO_POLY1305_X86_64 if X86 && 64BIT
+ select CRYPTO_BLAKE2S_X86 if X86 && 64BIT
+ select CRYPTO_CURVE25519_X86 if X86 && 64BIT
+ select ARM_CRYPTO if ARM
+ select ARM64_CRYPTO if ARM64
+ select CRYPTO_CHACHA20_NEON if (ARM || ARM64) && KERNEL_MODE_NEON
+ select CRYPTO_POLY1305_NEON if ARM64 && KERNEL_MODE_NEON
+ select CRYPTO_POLY1305_ARM if ARM
+ select CRYPTO_CURVE25519_NEON if ARM && KERNEL_MODE_NEON
+ select CRYPTO_CHACHA_MIPS if CPU_MIPS32_R2
+ select CRYPTO_POLY1305_MIPS if CPU_MIPS32 || (CPU_MIPS64 && 64BIT)
+ help
+ WireGuard is a secure, fast, and easy to use replacement for IPSec
+ that uses modern cryptography and clever networking tricks. It's
+ designed to be fairly general purpose and abstract enough to fit most
+ use cases, while at the same time remaining extremely simple to
+ configure. See www.wireguard.com for more info.
+
+ It's safe to say Y or M here, as the driver is very lightweight and
+ is only in use when an administrator chooses to add an interface.
+
+config WIREGUARD_DEBUG
+ bool "Debugging checks and verbose messages"
+ depends on WIREGUARD
+ help
+ This will write log messages for handshake and other events
+ that occur for a WireGuard interface. It will also perform some
+ extra validation checks and unit tests at various points. This is
+ only useful for debugging.
+
+ Say N here unless you know what you're doing.
+
config EQUALIZER
tristate "EQL (serial line load balancing) support"
---help---
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index 0d3ba05..953b7c1 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -10,6 +10,7 @@
obj-$(CONFIG_IPVLAN) += ipvlan/
obj-$(CONFIG_IPVTAP) += ipvlan/
obj-$(CONFIG_DUMMY) += dummy.o
+obj-$(CONFIG_WIREGUARD) += wireguard/
obj-$(CONFIG_EQUALIZER) += eql.o
obj-$(CONFIG_IFB) += ifb.o
obj-$(CONFIG_MACSEC) += macsec.o
diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c
index 8738d37..1bd181b 100644
--- a/drivers/net/can/dev.c
+++ b/drivers/net/can/dev.c
@@ -1235,7 +1235,6 @@ static void can_dellink(struct net_device *dev, struct list_head *head)
static struct rtnl_link_ops can_link_ops __read_mostly = {
.kind = "can",
- .netns_refund = true,
.maxtype = IFLA_CAN_MAX,
.policy = can_policy,
.setup = can_setup,
diff --git a/drivers/net/ppp/ppp_async.c b/drivers/net/ppp/ppp_async.c
index bf03db4..6fd8485 100644
--- a/drivers/net/ppp/ppp_async.c
+++ b/drivers/net/ppp/ppp_async.c
@@ -770,7 +770,7 @@ process_input_packet(struct asyncppp *ap)
{
struct sk_buff *skb;
unsigned char *p;
- unsigned int len, fcs, proto;
+ unsigned int len, fcs;
skb = ap->rpkt;
if (ap->state & (SC_TOSS | SC_ESCAPE))
@@ -799,14 +799,14 @@ process_input_packet(struct asyncppp *ap)
goto err;
p = skb_pull(skb, 2);
}
- proto = p[0];
- if (proto & 1) {
- /* protocol is compressed */
- *(u8 *)skb_push(skb, 1) = 0;
- } else {
+
+ /* If protocol field is not compressed, it can be LCP packet */
+ if (!(p[0] & 0x01)) {
+ unsigned int proto;
+
if (skb->len < 2)
goto err;
- proto = (proto << 8) + p[1];
+ proto = (p[0] << 8) + p[1];
if (proto == PPP_LCP)
async_lcp_peek(ap, p, skb->len, 1);
}
diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
index dc9de87..3dde5a9 100644
--- a/drivers/net/ppp/ppp_generic.c
+++ b/drivers/net/ppp/ppp_generic.c
@@ -1978,6 +1978,46 @@ ppp_do_recv(struct ppp *ppp, struct sk_buff *skb, struct channel *pch)
ppp_recv_unlock(ppp);
}
+/**
+ * __ppp_decompress_proto - Decompress protocol field, slim version.
+ * @skb: Socket buffer where protocol field should be decompressed. It must have
+ * at least 1 byte of head room and 1 byte of linear data. First byte of
+ * data must be a protocol field byte.
+ *
+ * Decompress protocol field in PPP header if it's compressed, e.g. when
+ * Protocol-Field-Compression (PFC) was negotiated. No checks w.r.t. skb data
+ * length are done in this function.
+ */
+static void __ppp_decompress_proto(struct sk_buff *skb)
+{
+ if (skb->data[0] & 0x01)
+ *(u8 *)skb_push(skb, 1) = 0x00;
+}
+
+/**
+ * ppp_decompress_proto - Check skb data room and decompress protocol field.
+ * @skb: Socket buffer where protocol field should be decompressed. First byte
+ * of data must be a protocol field byte.
+ *
+ * Decompress protocol field in PPP header if it's compressed, e.g. when
+ * Protocol-Field-Compression (PFC) was negotiated. This function also makes
+ * sure that skb data room is sufficient for Protocol field, before and after
+ * decompression.
+ *
+ * Return: true - decompressed successfully, false - not enough room in skb.
+ */
+static bool ppp_decompress_proto(struct sk_buff *skb)
+{
+ /* At least one byte should be present (if protocol is compressed) */
+ if (!pskb_may_pull(skb, 1))
+ return false;
+
+ __ppp_decompress_proto(skb);
+
+ /* Protocol field should occupy 2 bytes when not compressed */
+ return pskb_may_pull(skb, 2);
+}
+
void
ppp_input(struct ppp_channel *chan, struct sk_buff *skb)
{
@@ -1990,7 +2030,7 @@ ppp_input(struct ppp_channel *chan, struct sk_buff *skb)
}
read_lock_bh(&pch->upl);
- if (!pskb_may_pull(skb, 2)) {
+ if (!ppp_decompress_proto(skb)) {
kfree_skb(skb);
if (pch->ppp) {
++pch->ppp->dev->stats.rx_length_errors;
@@ -2087,6 +2127,9 @@ ppp_receive_nonmp_frame(struct ppp *ppp, struct sk_buff *skb)
if (ppp->flags & SC_MUST_COMP && ppp->rstate & SC_DC_FERROR)
goto err;
+ /* At this point the "Protocol" field MUST be decompressed, either in
+ * ppp_input(), ppp_decompress_frame() or in ppp_receive_mp_frame().
+ */
proto = PPP_PROTO(skb);
switch (proto) {
case PPP_VJC_COMP:
@@ -2258,6 +2301,9 @@ ppp_decompress_frame(struct ppp *ppp, struct sk_buff *skb)
skb_put(skb, len);
skb_pull(skb, 2); /* pull off the A/C bytes */
+ /* Don't call __ppp_decompress_proto() here, but instead rely on
+ * corresponding algo (mppe/bsd/deflate) to decompress it.
+ */
} else {
/* Uncompressed frame - pass to decompressor so it
can update its dictionary if necessary. */
@@ -2303,9 +2349,11 @@ ppp_receive_mp_frame(struct ppp *ppp, struct sk_buff *skb, struct channel *pch)
/*
* Do protocol ID decompression on the first fragment of each packet.
+ * We have to do that here, because ppp_receive_nonmp_frame() expects
+ * decompressed protocol field.
*/
- if ((PPP_MP_CB(skb)->BEbits & B) && (skb->data[0] & 1))
- *(u8 *)skb_push(skb, 1) = 0;
+ if (PPP_MP_CB(skb)->BEbits & B)
+ __ppp_decompress_proto(skb);
/*
* Expand sequence number to 32 bits, making it as close
diff --git a/drivers/net/ppp/ppp_synctty.c b/drivers/net/ppp/ppp_synctty.c
index 047f6c6..d02ba24 100644
--- a/drivers/net/ppp/ppp_synctty.c
+++ b/drivers/net/ppp/ppp_synctty.c
@@ -709,11 +709,10 @@ ppp_sync_input(struct syncppp *ap, const unsigned char *buf,
p = skb_pull(skb, 2);
}
- /* decompress protocol field if compressed */
- if (p[0] & 1) {
- /* protocol is compressed */
- *(u8 *)skb_push(skb, 1) = 0;
- } else if (skb->len < 2)
+ /* PPP packet length should be >= 2 bytes when protocol field is not
+ * compressed.
+ */
+ if (!(p[0] & 0x01) && skb->len < 2)
goto err;
/* queue the frame to be processed */
diff --git a/drivers/net/ppp/pptp.c b/drivers/net/ppp/pptp.c
index 9ad3ff4..b626001 100644
--- a/drivers/net/ppp/pptp.c
+++ b/drivers/net/ppp/pptp.c
@@ -325,11 +325,6 @@ static int pptp_rcv_core(struct sock *sk, struct sk_buff *skb)
skb_pull(skb, 2);
}
- if ((*skb->data) & 1) {
- /* protocol is compressed */
- *(u8 *)skb_push(skb, 1) = 0;
- }
-
skb->ip_summed = CHECKSUM_NONE;
skb_set_network_header(skb, skb->head-skb->data);
ppp_input(&po->chan, skb);
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 84b354f..60db6cb 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -1584,6 +1584,13 @@ static void usbnet_bh (struct timer_list *t)
}
}
+static void usbnet_bh_tasklet(unsigned long data)
+{
+ struct timer_list *t = (struct timer_list *)data;
+
+ usbnet_bh(t);
+}
+
/*-------------------------------------------------------------------------
*
@@ -1711,7 +1718,7 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
skb_queue_head_init (&dev->txq);
skb_queue_head_init (&dev->done);
skb_queue_head_init(&dev->rxq_pause);
- dev->bh.func = (void (*)(unsigned long))usbnet_bh;
+ dev->bh.func = usbnet_bh_tasklet;
dev->bh.data = (unsigned long)&dev->delay;
INIT_WORK (&dev->kevent, usbnet_deferred_kevent);
init_usb_anchor(&dev->deferred);
diff --git a/drivers/net/wireguard/Makefile b/drivers/net/wireguard/Makefile
new file mode 100644
index 0000000..fc52b2c
--- /dev/null
+++ b/drivers/net/wireguard/Makefile
@@ -0,0 +1,18 @@
+ccflags-y := -O3
+ccflags-y += -D'pr_fmt(fmt)=KBUILD_MODNAME ": " fmt'
+ccflags-$(CONFIG_WIREGUARD_DEBUG) += -DDEBUG
+wireguard-y := main.o
+wireguard-y += noise.o
+wireguard-y += device.o
+wireguard-y += peer.o
+wireguard-y += timers.o
+wireguard-y += queueing.o
+wireguard-y += send.o
+wireguard-y += receive.o
+wireguard-y += socket.o
+wireguard-y += peerlookup.o
+wireguard-y += allowedips.o
+wireguard-y += ratelimiter.o
+wireguard-y += cookie.o
+wireguard-y += netlink.o
+obj-$(CONFIG_WIREGUARD) := wireguard.o
diff --git a/drivers/net/wireguard/allowedips.c b/drivers/net/wireguard/allowedips.c
new file mode 100644
index 0000000..3725e9c
--- /dev/null
+++ b/drivers/net/wireguard/allowedips.c
@@ -0,0 +1,377 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#include "allowedips.h"
+#include "peer.h"
+
+static void swap_endian(u8 *dst, const u8 *src, u8 bits)
+{
+ if (bits == 32) {
+ *(u32 *)dst = be32_to_cpu(*(const __be32 *)src);
+ } else if (bits == 128) {
+ ((u64 *)dst)[0] = be64_to_cpu(((const __be64 *)src)[0]);
+ ((u64 *)dst)[1] = be64_to_cpu(((const __be64 *)src)[1]);
+ }
+}
+
+static void copy_and_assign_cidr(struct allowedips_node *node, const u8 *src,
+ u8 cidr, u8 bits)
+{
+ node->cidr = cidr;
+ node->bit_at_a = cidr / 8U;
+#ifdef __LITTLE_ENDIAN
+ node->bit_at_a ^= (bits / 8U - 1U) % 8U;
+#endif
+ node->bit_at_b = 7U - (cidr % 8U);
+ node->bitlen = bits;
+ memcpy(node->bits, src, bits / 8U);
+}
+#define CHOOSE_NODE(parent, key) \
+ parent->bit[(key[parent->bit_at_a] >> parent->bit_at_b) & 1]
+
+static void push_rcu(struct allowedips_node **stack,
+ struct allowedips_node __rcu *p, unsigned int *len)
+{
+ if (rcu_access_pointer(p)) {
+ WARN_ON(IS_ENABLED(DEBUG) && *len >= 128);
+ stack[(*len)++] = rcu_dereference_raw(p);
+ }
+}
+
+static void root_free_rcu(struct rcu_head *rcu)
+{
+ struct allowedips_node *node, *stack[128] = {
+ container_of(rcu, struct allowedips_node, rcu) };
+ unsigned int len = 1;
+
+ while (len > 0 && (node = stack[--len])) {
+ push_rcu(stack, node->bit[0], &len);
+ push_rcu(stack, node->bit[1], &len);
+ kfree(node);
+ }
+}
+
+static void root_remove_peer_lists(struct allowedips_node *root)
+{
+ struct allowedips_node *node, *stack[128] = { root };
+ unsigned int len = 1;
+
+ while (len > 0 && (node = stack[--len])) {
+ push_rcu(stack, node->bit[0], &len);
+ push_rcu(stack, node->bit[1], &len);
+ if (rcu_access_pointer(node->peer))
+ list_del(&node->peer_list);
+ }
+}
+
+static void walk_remove_by_peer(struct allowedips_node __rcu **top,
+ struct wg_peer *peer, struct mutex *lock)
+{
+#define REF(p) rcu_access_pointer(p)
+#define DEREF(p) rcu_dereference_protected(*(p), lockdep_is_held(lock))
+#define PUSH(p) ({ \
+ WARN_ON(IS_ENABLED(DEBUG) && len >= 128); \
+ stack[len++] = p; \
+ })
+
+ struct allowedips_node __rcu **stack[128], **nptr;
+ struct allowedips_node *node, *prev;
+ unsigned int len;
+
+ if (unlikely(!peer || !REF(*top)))
+ return;
+
+ for (prev = NULL, len = 0, PUSH(top); len > 0; prev = node) {
+ nptr = stack[len - 1];
+ node = DEREF(nptr);
+ if (!node) {
+ --len;
+ continue;
+ }
+ if (!prev || REF(prev->bit[0]) == node ||
+ REF(prev->bit[1]) == node) {
+ if (REF(node->bit[0]))
+ PUSH(&node->bit[0]);
+ else if (REF(node->bit[1]))
+ PUSH(&node->bit[1]);
+ } else if (REF(node->bit[0]) == prev) {
+ if (REF(node->bit[1]))
+ PUSH(&node->bit[1]);
+ } else {
+ if (rcu_dereference_protected(node->peer,
+ lockdep_is_held(lock)) == peer) {
+ RCU_INIT_POINTER(node->peer, NULL);
+ list_del_init(&node->peer_list);
+ if (!node->bit[0] || !node->bit[1]) {
+ rcu_assign_pointer(*nptr, DEREF(
+ &node->bit[!REF(node->bit[0])]));
+ kfree_rcu(node, rcu);
+ node = DEREF(nptr);
+ }
+ }
+ --len;
+ }
+ }
+
+#undef REF
+#undef DEREF
+#undef PUSH
+}
+
+static unsigned int fls128(u64 a, u64 b)
+{
+ return a ? fls64(a) + 64U : fls64(b);
+}
+
+static u8 common_bits(const struct allowedips_node *node, const u8 *key,
+ u8 bits)
+{
+ if (bits == 32)
+ return 32U - fls(*(const u32 *)node->bits ^ *(const u32 *)key);
+ else if (bits == 128)
+ return 128U - fls128(
+ *(const u64 *)&node->bits[0] ^ *(const u64 *)&key[0],
+ *(const u64 *)&node->bits[8] ^ *(const u64 *)&key[8]);
+ return 0;
+}
+
+static bool prefix_matches(const struct allowedips_node *node, const u8 *key,
+ u8 bits)
+{
+ /* This could be much faster if it actually just compared the common
+ * bits properly, by precomputing a mask bswap(~0 << (32 - cidr)), and
+ * the rest, but it turns out that common_bits is already super fast on
+ * modern processors, even taking into account the unfortunate bswap.
+ * So, we just inline it like this instead.
+ */
+ return common_bits(node, key, bits) >= node->cidr;
+}
+
+static struct allowedips_node *find_node(struct allowedips_node *trie, u8 bits,
+ const u8 *key)
+{
+ struct allowedips_node *node = trie, *found = NULL;
+
+ while (node && prefix_matches(node, key, bits)) {
+ if (rcu_access_pointer(node->peer))
+ found = node;
+ if (node->cidr == bits)
+ break;
+ node = rcu_dereference_bh(CHOOSE_NODE(node, key));
+ }
+ return found;
+}
+
+/* Returns a strong reference to a peer */
+static struct wg_peer *lookup(struct allowedips_node __rcu *root, u8 bits,
+ const void *be_ip)
+{
+ /* Aligned so it can be passed to fls/fls64 */
+ u8 ip[16] __aligned(__alignof(u64));
+ struct allowedips_node *node;
+ struct wg_peer *peer = NULL;
+
+ swap_endian(ip, be_ip, bits);
+
+ rcu_read_lock_bh();
+retry:
+ node = find_node(rcu_dereference_bh(root), bits, ip);
+ if (node) {
+ peer = wg_peer_get_maybe_zero(rcu_dereference_bh(node->peer));
+ if (!peer)
+ goto retry;
+ }
+ rcu_read_unlock_bh();
+ return peer;
+}
+
+static bool node_placement(struct allowedips_node __rcu *trie, const u8 *key,
+ u8 cidr, u8 bits, struct allowedips_node **rnode,
+ struct mutex *lock)
+{
+ struct allowedips_node *node = rcu_dereference_protected(trie,
+ lockdep_is_held(lock));
+ struct allowedips_node *parent = NULL;
+ bool exact = false;
+
+ while (node && node->cidr <= cidr && prefix_matches(node, key, bits)) {
+ parent = node;
+ if (parent->cidr == cidr) {
+ exact = true;
+ break;
+ }
+ node = rcu_dereference_protected(CHOOSE_NODE(parent, key),
+ lockdep_is_held(lock));
+ }
+ *rnode = parent;
+ return exact;
+}
+
+static int add(struct allowedips_node __rcu **trie, u8 bits, const u8 *key,
+ u8 cidr, struct wg_peer *peer, struct mutex *lock)
+{
+ struct allowedips_node *node, *parent, *down, *newnode;
+
+ if (unlikely(cidr > bits || !peer))
+ return -EINVAL;
+
+ if (!rcu_access_pointer(*trie)) {
+ node = kzalloc(sizeof(*node), GFP_KERNEL);
+ if (unlikely(!node))
+ return -ENOMEM;
+ RCU_INIT_POINTER(node->peer, peer);
+ list_add_tail(&node->peer_list, &peer->allowedips_list);
+ copy_and_assign_cidr(node, key, cidr, bits);
+ rcu_assign_pointer(*trie, node);
+ return 0;
+ }
+ if (node_placement(*trie, key, cidr, bits, &node, lock)) {
+ rcu_assign_pointer(node->peer, peer);
+ list_move_tail(&node->peer_list, &peer->allowedips_list);
+ return 0;
+ }
+
+ newnode = kzalloc(sizeof(*newnode), GFP_KERNEL);
+ if (unlikely(!newnode))
+ return -ENOMEM;
+ RCU_INIT_POINTER(newnode->peer, peer);
+ list_add_tail(&newnode->peer_list, &peer->allowedips_list);
+ copy_and_assign_cidr(newnode, key, cidr, bits);
+
+ if (!node) {
+ down = rcu_dereference_protected(*trie, lockdep_is_held(lock));
+ } else {
+ down = rcu_dereference_protected(CHOOSE_NODE(node, key),
+ lockdep_is_held(lock));
+ if (!down) {
+ rcu_assign_pointer(CHOOSE_NODE(node, key), newnode);
+ return 0;
+ }
+ }
+ cidr = min(cidr, common_bits(down, key, bits));
+ parent = node;
+
+ if (newnode->cidr == cidr) {
+ rcu_assign_pointer(CHOOSE_NODE(newnode, down->bits), down);
+ if (!parent)
+ rcu_assign_pointer(*trie, newnode);
+ else
+ rcu_assign_pointer(CHOOSE_NODE(parent, newnode->bits),
+ newnode);
+ } else {
+ node = kzalloc(sizeof(*node), GFP_KERNEL);
+ if (unlikely(!node)) {
+ list_del(&newnode->peer_list);
+ kfree(newnode);
+ return -ENOMEM;
+ }
+ INIT_LIST_HEAD(&node->peer_list);
+ copy_and_assign_cidr(node, newnode->bits, cidr, bits);
+
+ rcu_assign_pointer(CHOOSE_NODE(node, down->bits), down);
+ rcu_assign_pointer(CHOOSE_NODE(node, newnode->bits), newnode);
+ if (!parent)
+ rcu_assign_pointer(*trie, node);
+ else
+ rcu_assign_pointer(CHOOSE_NODE(parent, node->bits),
+ node);
+ }
+ return 0;
+}
+
+void wg_allowedips_init(struct allowedips *table)
+{
+ table->root4 = table->root6 = NULL;
+ table->seq = 1;
+}
+
+void wg_allowedips_free(struct allowedips *table, struct mutex *lock)
+{
+ struct allowedips_node __rcu *old4 = table->root4, *old6 = table->root6;
+
+ ++table->seq;
+ RCU_INIT_POINTER(table->root4, NULL);
+ RCU_INIT_POINTER(table->root6, NULL);
+ if (rcu_access_pointer(old4)) {
+ struct allowedips_node *node = rcu_dereference_protected(old4,
+ lockdep_is_held(lock));
+
+ root_remove_peer_lists(node);
+ call_rcu(&node->rcu, root_free_rcu);
+ }
+ if (rcu_access_pointer(old6)) {
+ struct allowedips_node *node = rcu_dereference_protected(old6,
+ lockdep_is_held(lock));
+
+ root_remove_peer_lists(node);
+ call_rcu(&node->rcu, root_free_rcu);
+ }
+}
+
+int wg_allowedips_insert_v4(struct allowedips *table, const struct in_addr *ip,
+ u8 cidr, struct wg_peer *peer, struct mutex *lock)
+{
+ /* Aligned so it can be passed to fls */
+ u8 key[4] __aligned(__alignof(u32));
+
+ ++table->seq;
+ swap_endian(key, (const u8 *)ip, 32);
+ return add(&table->root4, 32, key, cidr, peer, lock);
+}
+
+int wg_allowedips_insert_v6(struct allowedips *table, const struct in6_addr *ip,
+ u8 cidr, struct wg_peer *peer, struct mutex *lock)
+{
+ /* Aligned so it can be passed to fls64 */
+ u8 key[16] __aligned(__alignof(u64));
+
+ ++table->seq;
+ swap_endian(key, (const u8 *)ip, 128);
+ return add(&table->root6, 128, key, cidr, peer, lock);
+}
+
+void wg_allowedips_remove_by_peer(struct allowedips *table,
+ struct wg_peer *peer, struct mutex *lock)
+{
+ ++table->seq;
+ walk_remove_by_peer(&table->root4, peer, lock);
+ walk_remove_by_peer(&table->root6, peer, lock);
+}
+
+int wg_allowedips_read_node(struct allowedips_node *node, u8 ip[16], u8 *cidr)
+{
+ const unsigned int cidr_bytes = DIV_ROUND_UP(node->cidr, 8U);
+ swap_endian(ip, node->bits, node->bitlen);
+ memset(ip + cidr_bytes, 0, node->bitlen / 8U - cidr_bytes);
+ if (node->cidr)
+ ip[cidr_bytes - 1U] &= ~0U << (-node->cidr % 8U);
+
+ *cidr = node->cidr;
+ return node->bitlen == 32 ? AF_INET : AF_INET6;
+}
+
+/* Returns a strong reference to a peer */
+struct wg_peer *wg_allowedips_lookup_dst(struct allowedips *table,
+ struct sk_buff *skb)
+{
+ if (skb->protocol == htons(ETH_P_IP))
+ return lookup(table->root4, 32, &ip_hdr(skb)->daddr);
+ else if (skb->protocol == htons(ETH_P_IPV6))
+ return lookup(table->root6, 128, &ipv6_hdr(skb)->daddr);
+ return NULL;
+}
+
+/* Returns a strong reference to a peer */
+struct wg_peer *wg_allowedips_lookup_src(struct allowedips *table,
+ struct sk_buff *skb)
+{
+ if (skb->protocol == htons(ETH_P_IP))
+ return lookup(table->root4, 32, &ip_hdr(skb)->saddr);
+ else if (skb->protocol == htons(ETH_P_IPV6))
+ return lookup(table->root6, 128, &ipv6_hdr(skb)->saddr);
+ return NULL;
+}
+
+#include "selftest/allowedips.c"
diff --git a/drivers/net/wireguard/allowedips.h b/drivers/net/wireguard/allowedips.h
new file mode 100644
index 0000000..e5c83ca
--- /dev/null
+++ b/drivers/net/wireguard/allowedips.h
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#ifndef _WG_ALLOWEDIPS_H
+#define _WG_ALLOWEDIPS_H
+
+#include <linux/mutex.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+
+struct wg_peer;
+
+struct allowedips_node {
+ struct wg_peer __rcu *peer;
+ struct allowedips_node __rcu *bit[2];
+ /* While it may seem scandalous that we waste space for v4,
+ * we're alloc'ing to the nearest power of 2 anyway, so this
+ * doesn't actually make a difference.
+ */
+ u8 bits[16] __aligned(__alignof(u64));
+ u8 cidr, bit_at_a, bit_at_b, bitlen;
+
+ /* Keep rarely used list at bottom to be beyond cache line. */
+ union {
+ struct list_head peer_list;
+ struct rcu_head rcu;
+ };
+};
+
+struct allowedips {
+ struct allowedips_node __rcu *root4;
+ struct allowedips_node __rcu *root6;
+ u64 seq;
+};
+
+void wg_allowedips_init(struct allowedips *table);
+void wg_allowedips_free(struct allowedips *table, struct mutex *mutex);
+int wg_allowedips_insert_v4(struct allowedips *table, const struct in_addr *ip,
+ u8 cidr, struct wg_peer *peer, struct mutex *lock);
+int wg_allowedips_insert_v6(struct allowedips *table, const struct in6_addr *ip,
+ u8 cidr, struct wg_peer *peer, struct mutex *lock);
+void wg_allowedips_remove_by_peer(struct allowedips *table,
+ struct wg_peer *peer, struct mutex *lock);
+/* The ip input pointer should be __aligned(__alignof(u64))) */
+int wg_allowedips_read_node(struct allowedips_node *node, u8 ip[16], u8 *cidr);
+
+/* These return a strong reference to a peer: */
+struct wg_peer *wg_allowedips_lookup_dst(struct allowedips *table,
+ struct sk_buff *skb);
+struct wg_peer *wg_allowedips_lookup_src(struct allowedips *table,
+ struct sk_buff *skb);
+
+#ifdef DEBUG
+bool wg_allowedips_selftest(void);
+#endif
+
+#endif /* _WG_ALLOWEDIPS_H */
diff --git a/drivers/net/wireguard/cookie.c b/drivers/net/wireguard/cookie.c
new file mode 100644
index 0000000..4956f04
--- /dev/null
+++ b/drivers/net/wireguard/cookie.c
@@ -0,0 +1,236 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#include "cookie.h"
+#include "peer.h"
+#include "device.h"
+#include "messages.h"
+#include "ratelimiter.h"
+#include "timers.h"
+
+#include <crypto/blake2s.h>
+#include <crypto/chacha20poly1305.h>
+
+#include <net/ipv6.h>
+#include <crypto/algapi.h>
+
+void wg_cookie_checker_init(struct cookie_checker *checker,
+ struct wg_device *wg)
+{
+ init_rwsem(&checker->secret_lock);
+ checker->secret_birthdate = ktime_get_coarse_boottime_ns();
+ get_random_bytes(checker->secret, NOISE_HASH_LEN);
+ checker->device = wg;
+}
+
+enum { COOKIE_KEY_LABEL_LEN = 8 };
+static const u8 mac1_key_label[COOKIE_KEY_LABEL_LEN] = "mac1----";
+static const u8 cookie_key_label[COOKIE_KEY_LABEL_LEN] = "cookie--";
+
+static void precompute_key(u8 key[NOISE_SYMMETRIC_KEY_LEN],
+ const u8 pubkey[NOISE_PUBLIC_KEY_LEN],
+ const u8 label[COOKIE_KEY_LABEL_LEN])
+{
+ struct blake2s_state blake;
+
+ blake2s_init(&blake, NOISE_SYMMETRIC_KEY_LEN);
+ blake2s_update(&blake, label, COOKIE_KEY_LABEL_LEN);
+ blake2s_update(&blake, pubkey, NOISE_PUBLIC_KEY_LEN);
+ blake2s_final(&blake, key);
+}
+
+/* Must hold peer->handshake.static_identity->lock */
+void wg_cookie_checker_precompute_device_keys(struct cookie_checker *checker)
+{
+ if (likely(checker->device->static_identity.has_identity)) {
+ precompute_key(checker->cookie_encryption_key,
+ checker->device->static_identity.static_public,
+ cookie_key_label);
+ precompute_key(checker->message_mac1_key,
+ checker->device->static_identity.static_public,
+ mac1_key_label);
+ } else {
+ memset(checker->cookie_encryption_key, 0,
+ NOISE_SYMMETRIC_KEY_LEN);
+ memset(checker->message_mac1_key, 0, NOISE_SYMMETRIC_KEY_LEN);
+ }
+}
+
+void wg_cookie_checker_precompute_peer_keys(struct wg_peer *peer)
+{
+ precompute_key(peer->latest_cookie.cookie_decryption_key,
+ peer->handshake.remote_static, cookie_key_label);
+ precompute_key(peer->latest_cookie.message_mac1_key,
+ peer->handshake.remote_static, mac1_key_label);
+}
+
+void wg_cookie_init(struct cookie *cookie)
+{
+ memset(cookie, 0, sizeof(*cookie));
+ init_rwsem(&cookie->lock);
+}
+
+static void compute_mac1(u8 mac1[COOKIE_LEN], const void *message, size_t len,
+ const u8 key[NOISE_SYMMETRIC_KEY_LEN])
+{
+ len = len - sizeof(struct message_macs) +
+ offsetof(struct message_macs, mac1);
+ blake2s(mac1, message, key, COOKIE_LEN, len, NOISE_SYMMETRIC_KEY_LEN);
+}
+
+static void compute_mac2(u8 mac2[COOKIE_LEN], const void *message, size_t len,
+ const u8 cookie[COOKIE_LEN])
+{
+ len = len - sizeof(struct message_macs) +
+ offsetof(struct message_macs, mac2);
+ blake2s(mac2, message, cookie, COOKIE_LEN, len, COOKIE_LEN);
+}
+
+static void make_cookie(u8 cookie[COOKIE_LEN], struct sk_buff *skb,
+ struct cookie_checker *checker)
+{
+ struct blake2s_state state;
+
+ if (wg_birthdate_has_expired(checker->secret_birthdate,
+ COOKIE_SECRET_MAX_AGE)) {
+ down_write(&checker->secret_lock);
+ checker->secret_birthdate = ktime_get_coarse_boottime_ns();
+ get_random_bytes(checker->secret, NOISE_HASH_LEN);
+ up_write(&checker->secret_lock);
+ }
+
+ down_read(&checker->secret_lock);
+
+ blake2s_init_key(&state, COOKIE_LEN, checker->secret, NOISE_HASH_LEN);
+ if (skb->protocol == htons(ETH_P_IP))
+ blake2s_update(&state, (u8 *)&ip_hdr(skb)->saddr,
+ sizeof(struct in_addr));
+ else if (skb->protocol == htons(ETH_P_IPV6))
+ blake2s_update(&state, (u8 *)&ipv6_hdr(skb)->saddr,
+ sizeof(struct in6_addr));
+ blake2s_update(&state, (u8 *)&udp_hdr(skb)->source, sizeof(__be16));
+ blake2s_final(&state, cookie);
+
+ up_read(&checker->secret_lock);
+}
+
+enum cookie_mac_state wg_cookie_validate_packet(struct cookie_checker *checker,
+ struct sk_buff *skb,
+ bool check_cookie)
+{
+ struct message_macs *macs = (struct message_macs *)
+ (skb->data + skb->len - sizeof(*macs));
+ enum cookie_mac_state ret;
+ u8 computed_mac[COOKIE_LEN];
+ u8 cookie[COOKIE_LEN];
+
+ ret = INVALID_MAC;
+ compute_mac1(computed_mac, skb->data, skb->len,
+ checker->message_mac1_key);
+ if (crypto_memneq(computed_mac, macs->mac1, COOKIE_LEN))
+ goto out;
+
+ ret = VALID_MAC_BUT_NO_COOKIE;
+
+ if (!check_cookie)
+ goto out;
+
+ make_cookie(cookie, skb, checker);
+
+ compute_mac2(computed_mac, skb->data, skb->len, cookie);
+ if (crypto_memneq(computed_mac, macs->mac2, COOKIE_LEN))
+ goto out;
+
+ ret = VALID_MAC_WITH_COOKIE_BUT_RATELIMITED;
+ if (!wg_ratelimiter_allow(skb, dev_net(checker->device->dev)))
+ goto out;
+
+ ret = VALID_MAC_WITH_COOKIE;
+
+out:
+ return ret;
+}
+
+void wg_cookie_add_mac_to_packet(void *message, size_t len,
+ struct wg_peer *peer)
+{
+ struct message_macs *macs = (struct message_macs *)
+ ((u8 *)message + len - sizeof(*macs));
+
+ down_write(&peer->latest_cookie.lock);
+ compute_mac1(macs->mac1, message, len,
+ peer->latest_cookie.message_mac1_key);
+ memcpy(peer->latest_cookie.last_mac1_sent, macs->mac1, COOKIE_LEN);
+ peer->latest_cookie.have_sent_mac1 = true;
+ up_write(&peer->latest_cookie.lock);
+
+ down_read(&peer->latest_cookie.lock);
+ if (peer->latest_cookie.is_valid &&
+ !wg_birthdate_has_expired(peer->latest_cookie.birthdate,
+ COOKIE_SECRET_MAX_AGE - COOKIE_SECRET_LATENCY))
+ compute_mac2(macs->mac2, message, len,
+ peer->latest_cookie.cookie);
+ else
+ memset(macs->mac2, 0, COOKIE_LEN);
+ up_read(&peer->latest_cookie.lock);
+}
+
+void wg_cookie_message_create(struct message_handshake_cookie *dst,
+ struct sk_buff *skb, __le32 index,
+ struct cookie_checker *checker)
+{
+ struct message_macs *macs = (struct message_macs *)
+ ((u8 *)skb->data + skb->len - sizeof(*macs));
+ u8 cookie[COOKIE_LEN];
+
+ dst->header.type = cpu_to_le32(MESSAGE_HANDSHAKE_COOKIE);
+ dst->receiver_index = index;
+ get_random_bytes_wait(dst->nonce, COOKIE_NONCE_LEN);
+
+ make_cookie(cookie, skb, checker);
+ xchacha20poly1305_encrypt(dst->encrypted_cookie, cookie, COOKIE_LEN,
+ macs->mac1, COOKIE_LEN, dst->nonce,
+ checker->cookie_encryption_key);
+}
+
+void wg_cookie_message_consume(struct message_handshake_cookie *src,
+ struct wg_device *wg)
+{
+ struct wg_peer *peer = NULL;
+ u8 cookie[COOKIE_LEN];
+ bool ret;
+
+ if (unlikely(!wg_index_hashtable_lookup(wg->index_hashtable,
+ INDEX_HASHTABLE_HANDSHAKE |
+ INDEX_HASHTABLE_KEYPAIR,
+ src->receiver_index, &peer)))
+ return;
+
+ down_read(&peer->latest_cookie.lock);
+ if (unlikely(!peer->latest_cookie.have_sent_mac1)) {
+ up_read(&peer->latest_cookie.lock);
+ goto out;
+ }
+ ret = xchacha20poly1305_decrypt(
+ cookie, src->encrypted_cookie, sizeof(src->encrypted_cookie),
+ peer->latest_cookie.last_mac1_sent, COOKIE_LEN, src->nonce,
+ peer->latest_cookie.cookie_decryption_key);
+ up_read(&peer->latest_cookie.lock);
+
+ if (ret) {
+ down_write(&peer->latest_cookie.lock);
+ memcpy(peer->latest_cookie.cookie, cookie, COOKIE_LEN);
+ peer->latest_cookie.birthdate = ktime_get_coarse_boottime_ns();
+ peer->latest_cookie.is_valid = true;
+ peer->latest_cookie.have_sent_mac1 = false;
+ up_write(&peer->latest_cookie.lock);
+ } else {
+ net_dbg_ratelimited("%s: Could not decrypt invalid cookie response\n",
+ wg->dev->name);
+ }
+
+out:
+ wg_peer_put(peer);
+}
diff --git a/drivers/net/wireguard/cookie.h b/drivers/net/wireguard/cookie.h
new file mode 100644
index 0000000..c4bd61c
--- /dev/null
+++ b/drivers/net/wireguard/cookie.h
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#ifndef _WG_COOKIE_H
+#define _WG_COOKIE_H
+
+#include "messages.h"
+#include <linux/rwsem.h>
+
+struct wg_peer;
+
+struct cookie_checker {
+ u8 secret[NOISE_HASH_LEN];
+ u8 cookie_encryption_key[NOISE_SYMMETRIC_KEY_LEN];
+ u8 message_mac1_key[NOISE_SYMMETRIC_KEY_LEN];
+ u64 secret_birthdate;
+ struct rw_semaphore secret_lock;
+ struct wg_device *device;
+};
+
+struct cookie {
+ u64 birthdate;
+ bool is_valid;
+ u8 cookie[COOKIE_LEN];
+ bool have_sent_mac1;
+ u8 last_mac1_sent[COOKIE_LEN];
+ u8 cookie_decryption_key[NOISE_SYMMETRIC_KEY_LEN];
+ u8 message_mac1_key[NOISE_SYMMETRIC_KEY_LEN];
+ struct rw_semaphore lock;
+};
+
+enum cookie_mac_state {
+ INVALID_MAC,
+ VALID_MAC_BUT_NO_COOKIE,
+ VALID_MAC_WITH_COOKIE_BUT_RATELIMITED,
+ VALID_MAC_WITH_COOKIE
+};
+
+void wg_cookie_checker_init(struct cookie_checker *checker,
+ struct wg_device *wg);
+void wg_cookie_checker_precompute_device_keys(struct cookie_checker *checker);
+void wg_cookie_checker_precompute_peer_keys(struct wg_peer *peer);
+void wg_cookie_init(struct cookie *cookie);
+
+enum cookie_mac_state wg_cookie_validate_packet(struct cookie_checker *checker,
+ struct sk_buff *skb,
+ bool check_cookie);
+void wg_cookie_add_mac_to_packet(void *message, size_t len,
+ struct wg_peer *peer);
+
+void wg_cookie_message_create(struct message_handshake_cookie *src,
+ struct sk_buff *skb, __le32 index,
+ struct cookie_checker *checker);
+void wg_cookie_message_consume(struct message_handshake_cookie *src,
+ struct wg_device *wg);
+
+#endif /* _WG_COOKIE_H */
diff --git a/drivers/net/wireguard/device.c b/drivers/net/wireguard/device.c
new file mode 100644
index 0000000..de8a4fa
--- /dev/null
+++ b/drivers/net/wireguard/device.c
@@ -0,0 +1,455 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#include "queueing.h"
+#include "socket.h"
+#include "timers.h"
+#include "device.h"
+#include "ratelimiter.h"
+#include "peer.h"
+#include "messages.h"
+
+#include <linux/module.h>
+#include <linux/rtnetlink.h>
+#include <linux/inet.h>
+#include <linux/netdevice.h>
+#include <linux/inetdevice.h>
+#include <linux/if_arp.h>
+#include <linux/icmp.h>
+#include <linux/suspend.h>
+#include <net/icmp.h>
+#include <net/rtnetlink.h>
+#include <net/ip_tunnels.h>
+#include <net/addrconf.h>
+
+static LIST_HEAD(device_list);
+
+static int wg_open(struct net_device *dev)
+{
+ struct in_device *dev_v4 = __in_dev_get_rtnl(dev);
+ struct inet6_dev *dev_v6 = __in6_dev_get(dev);
+ struct wg_device *wg = netdev_priv(dev);
+ struct wg_peer *peer;
+ int ret;
+
+ if (dev_v4) {
+ /* At some point we might put this check near the ip_rt_send_
+ * redirect call of ip_forward in net/ipv4/ip_forward.c, similar
+ * to the current secpath check.
+ */
+ IN_DEV_CONF_SET(dev_v4, SEND_REDIRECTS, false);
+ IPV4_DEVCONF_ALL(dev_net(dev), SEND_REDIRECTS) = false;
+ }
+ if (dev_v6)
+ dev_v6->cnf.addr_gen_mode = IN6_ADDR_GEN_MODE_NONE;
+
+ mutex_lock(&wg->device_update_lock);
+ ret = wg_socket_init(wg, wg->incoming_port);
+ if (ret < 0)
+ goto out;
+ list_for_each_entry(peer, &wg->peer_list, peer_list) {
+ wg_packet_send_staged_packets(peer);
+ if (peer->persistent_keepalive_interval)
+ wg_packet_send_keepalive(peer);
+ }
+out:
+ mutex_unlock(&wg->device_update_lock);
+ return ret;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int wg_pm_notification(struct notifier_block *nb, unsigned long action,
+ void *data)
+{
+ struct wg_device *wg;
+ struct wg_peer *peer;
+
+ /* If the machine is constantly suspending and resuming, as part of
+ * its normal operation rather than as a somewhat rare event, then we
+ * don't actually want to clear keys.
+ */
+ if (IS_ENABLED(CONFIG_PM_AUTOSLEEP) || IS_ENABLED(CONFIG_ANDROID))
+ return 0;
+
+ if (action != PM_HIBERNATION_PREPARE && action != PM_SUSPEND_PREPARE)
+ return 0;
+
+ rtnl_lock();
+ list_for_each_entry(wg, &device_list, device_list) {
+ mutex_lock(&wg->device_update_lock);
+ list_for_each_entry(peer, &wg->peer_list, peer_list) {
+ del_timer(&peer->timer_zero_key_material);
+ wg_noise_handshake_clear(&peer->handshake);
+ wg_noise_keypairs_clear(&peer->keypairs);
+ }
+ mutex_unlock(&wg->device_update_lock);
+ }
+ rtnl_unlock();
+ rcu_barrier();
+ return 0;
+}
+
+static struct notifier_block pm_notifier = { .notifier_call = wg_pm_notification };
+#endif
+
+static int wg_stop(struct net_device *dev)
+{
+ struct wg_device *wg = netdev_priv(dev);
+ struct wg_peer *peer;
+
+ mutex_lock(&wg->device_update_lock);
+ list_for_each_entry(peer, &wg->peer_list, peer_list) {
+ wg_packet_purge_staged_packets(peer);
+ wg_timers_stop(peer);
+ wg_noise_handshake_clear(&peer->handshake);
+ wg_noise_keypairs_clear(&peer->keypairs);
+ wg_noise_reset_last_sent_handshake(&peer->last_sent_handshake);
+ }
+ mutex_unlock(&wg->device_update_lock);
+ skb_queue_purge(&wg->incoming_handshakes);
+ wg_socket_reinit(wg, NULL, NULL);
+ return 0;
+}
+
+static netdev_tx_t wg_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct wg_device *wg = netdev_priv(dev);
+ struct sk_buff_head packets;
+ struct wg_peer *peer;
+ struct sk_buff *next;
+ sa_family_t family;
+ u32 mtu;
+ int ret;
+
+ if (unlikely(!wg_check_packet_protocol(skb))) {
+ ret = -EPROTONOSUPPORT;
+ net_dbg_ratelimited("%s: Invalid IP packet\n", dev->name);
+ goto err;
+ }
+
+ peer = wg_allowedips_lookup_dst(&wg->peer_allowedips, skb);
+ if (unlikely(!peer)) {
+ ret = -ENOKEY;
+ if (skb->protocol == htons(ETH_P_IP))
+ net_dbg_ratelimited("%s: No peer has allowed IPs matching %pI4\n",
+ dev->name, &ip_hdr(skb)->daddr);
+ else if (skb->protocol == htons(ETH_P_IPV6))
+ net_dbg_ratelimited("%s: No peer has allowed IPs matching %pI6\n",
+ dev->name, &ipv6_hdr(skb)->daddr);
+ goto err;
+ }
+
+ family = READ_ONCE(peer->endpoint.addr.sa_family);
+ if (unlikely(family != AF_INET && family != AF_INET6)) {
+ ret = -EDESTADDRREQ;
+ net_dbg_ratelimited("%s: No valid endpoint has been configured or discovered for peer %llu\n",
+ dev->name, peer->internal_id);
+ goto err_peer;
+ }
+
+ mtu = skb_dst(skb) ? dst_mtu(skb_dst(skb)) : dev->mtu;
+
+ __skb_queue_head_init(&packets);
+ if (!skb_is_gso(skb)) {
+ skb_mark_not_on_list(skb);
+ } else {
+ struct sk_buff *segs = skb_gso_segment(skb, 0);
+
+ if (unlikely(IS_ERR(segs))) {
+ ret = PTR_ERR(segs);
+ goto err_peer;
+ }
+ dev_kfree_skb(skb);
+ skb = segs;
+ }
+
+ skb_list_walk_safe(skb, skb, next) {
+ skb_mark_not_on_list(skb);
+
+ skb = skb_share_check(skb, GFP_ATOMIC);
+ if (unlikely(!skb))
+ continue;
+
+ /* We only need to keep the original dst around for icmp,
+ * so at this point we're in a position to drop it.
+ */
+ skb_dst_drop(skb);
+
+ PACKET_CB(skb)->mtu = mtu;
+
+ __skb_queue_tail(&packets, skb);
+ }
+
+ spin_lock_bh(&peer->staged_packet_queue.lock);
+ /* If the queue is getting too big, we start removing the oldest packets
+ * until it's small again. We do this before adding the new packet, so
+ * we don't remove GSO segments that are in excess.
+ */
+ while (skb_queue_len(&peer->staged_packet_queue) > MAX_STAGED_PACKETS) {
+ dev_kfree_skb(__skb_dequeue(&peer->staged_packet_queue));
+ ++dev->stats.tx_dropped;
+ }
+ skb_queue_splice_tail(&packets, &peer->staged_packet_queue);
+ spin_unlock_bh(&peer->staged_packet_queue.lock);
+
+ wg_packet_send_staged_packets(peer);
+
+ wg_peer_put(peer);
+ return NETDEV_TX_OK;
+
+err_peer:
+ wg_peer_put(peer);
+err:
+ ++dev->stats.tx_errors;
+ if (skb->protocol == htons(ETH_P_IP))
+ icmp_ndo_send(skb, ICMP_DEST_UNREACH, ICMP_HOST_UNREACH, 0);
+ else if (skb->protocol == htons(ETH_P_IPV6))
+ icmpv6_ndo_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_ADDR_UNREACH, 0);
+ kfree_skb(skb);
+ return ret;
+}
+
+static const struct net_device_ops netdev_ops = {
+ .ndo_open = wg_open,
+ .ndo_stop = wg_stop,
+ .ndo_start_xmit = wg_xmit,
+ .ndo_get_stats64 = ip_tunnel_get_stats64
+};
+
+static void wg_destruct(struct net_device *dev)
+{
+ struct wg_device *wg = netdev_priv(dev);
+
+ rtnl_lock();
+ list_del(&wg->device_list);
+ rtnl_unlock();
+ mutex_lock(&wg->device_update_lock);
+ rcu_assign_pointer(wg->creating_net, NULL);
+ wg->incoming_port = 0;
+ wg_socket_reinit(wg, NULL, NULL);
+ /* The final references are cleared in the below calls to destroy_workqueue. */
+ wg_peer_remove_all(wg);
+ destroy_workqueue(wg->handshake_receive_wq);
+ destroy_workqueue(wg->handshake_send_wq);
+ destroy_workqueue(wg->packet_crypt_wq);
+ wg_packet_queue_free(&wg->decrypt_queue, true);
+ wg_packet_queue_free(&wg->encrypt_queue, true);
+ rcu_barrier(); /* Wait for all the peers to be actually freed. */
+ wg_ratelimiter_uninit();
+ memzero_explicit(&wg->static_identity, sizeof(wg->static_identity));
+ skb_queue_purge(&wg->incoming_handshakes);
+ free_percpu(dev->tstats);
+ free_percpu(wg->incoming_handshakes_worker);
+ kvfree(wg->index_hashtable);
+ kvfree(wg->peer_hashtable);
+ mutex_unlock(&wg->device_update_lock);
+
+ pr_debug("%s: Interface destroyed\n", dev->name);
+ free_netdev(dev);
+}
+
+static const struct device_type device_type = { .name = KBUILD_MODNAME };
+
+static void wg_setup(struct net_device *dev)
+{
+ struct wg_device *wg = netdev_priv(dev);
+ enum { WG_NETDEV_FEATURES = NETIF_F_HW_CSUM | NETIF_F_RXCSUM |
+ NETIF_F_SG | NETIF_F_GSO |
+ NETIF_F_GSO_SOFTWARE | NETIF_F_HIGHDMA };
+ const int overhead = MESSAGE_MINIMUM_LENGTH + sizeof(struct udphdr) +
+ max(sizeof(struct ipv6hdr), sizeof(struct iphdr));
+
+ dev->netdev_ops = &netdev_ops;
+ dev->hard_header_len = 0;
+ dev->addr_len = 0;
+ dev->needed_headroom = DATA_PACKET_HEAD_ROOM;
+ dev->needed_tailroom = noise_encrypted_len(MESSAGE_PADDING_MULTIPLE);
+ dev->type = ARPHRD_NONE;
+ dev->flags = IFF_POINTOPOINT | IFF_NOARP;
+ dev->priv_flags |= IFF_NO_QUEUE;
+ dev->features |= NETIF_F_LLTX;
+ dev->features |= WG_NETDEV_FEATURES;
+ dev->hw_features |= WG_NETDEV_FEATURES;
+ dev->hw_enc_features |= WG_NETDEV_FEATURES;
+ dev->mtu = ETH_DATA_LEN - overhead;
+ dev->max_mtu = round_down(INT_MAX, MESSAGE_PADDING_MULTIPLE) - overhead;
+
+ SET_NETDEV_DEVTYPE(dev, &device_type);
+
+ /* We need to keep the dst around in case of icmp replies. */
+ netif_keep_dst(dev);
+
+ memset(wg, 0, sizeof(*wg));
+ wg->dev = dev;
+}
+
+static int wg_newlink(struct net *src_net, struct net_device *dev,
+ struct nlattr *tb[], struct nlattr *data[],
+ struct netlink_ext_ack *extack)
+{
+ struct wg_device *wg = netdev_priv(dev);
+ int ret = -ENOMEM;
+
+ rcu_assign_pointer(wg->creating_net, src_net);
+ init_rwsem(&wg->static_identity.lock);
+ mutex_init(&wg->socket_update_lock);
+ mutex_init(&wg->device_update_lock);
+ skb_queue_head_init(&wg->incoming_handshakes);
+ wg_allowedips_init(&wg->peer_allowedips);
+ wg_cookie_checker_init(&wg->cookie_checker, wg);
+ INIT_LIST_HEAD(&wg->peer_list);
+ wg->device_update_gen = 1;
+
+ wg->peer_hashtable = wg_pubkey_hashtable_alloc();
+ if (!wg->peer_hashtable)
+ return ret;
+
+ wg->index_hashtable = wg_index_hashtable_alloc();
+ if (!wg->index_hashtable)
+ goto err_free_peer_hashtable;
+
+ dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
+ if (!dev->tstats)
+ goto err_free_index_hashtable;
+
+ wg->incoming_handshakes_worker =
+ wg_packet_percpu_multicore_worker_alloc(
+ wg_packet_handshake_receive_worker, wg);
+ if (!wg->incoming_handshakes_worker)
+ goto err_free_tstats;
+
+ wg->handshake_receive_wq = alloc_workqueue("wg-kex-%s",
+ WQ_CPU_INTENSIVE | WQ_FREEZABLE, 0, dev->name);
+ if (!wg->handshake_receive_wq)
+ goto err_free_incoming_handshakes;
+
+ wg->handshake_send_wq = alloc_workqueue("wg-kex-%s",
+ WQ_UNBOUND | WQ_FREEZABLE, 0, dev->name);
+ if (!wg->handshake_send_wq)
+ goto err_destroy_handshake_receive;
+
+ wg->packet_crypt_wq = alloc_workqueue("wg-crypt-%s",
+ WQ_CPU_INTENSIVE | WQ_MEM_RECLAIM, 0, dev->name);
+ if (!wg->packet_crypt_wq)
+ goto err_destroy_handshake_send;
+
+ ret = wg_packet_queue_init(&wg->encrypt_queue, wg_packet_encrypt_worker,
+ true, MAX_QUEUED_PACKETS);
+ if (ret < 0)
+ goto err_destroy_packet_crypt;
+
+ ret = wg_packet_queue_init(&wg->decrypt_queue, wg_packet_decrypt_worker,
+ true, MAX_QUEUED_PACKETS);
+ if (ret < 0)
+ goto err_free_encrypt_queue;
+
+ ret = wg_ratelimiter_init();
+ if (ret < 0)
+ goto err_free_decrypt_queue;
+
+ ret = register_netdevice(dev);
+ if (ret < 0)
+ goto err_uninit_ratelimiter;
+
+ list_add(&wg->device_list, &device_list);
+
+ /* We wait until the end to assign priv_destructor, so that
+ * register_netdevice doesn't call it for us if it fails.
+ */
+ dev->priv_destructor = wg_destruct;
+
+ pr_debug("%s: Interface created\n", dev->name);
+ return ret;
+
+err_uninit_ratelimiter:
+ wg_ratelimiter_uninit();
+err_free_decrypt_queue:
+ wg_packet_queue_free(&wg->decrypt_queue, true);
+err_free_encrypt_queue:
+ wg_packet_queue_free(&wg->encrypt_queue, true);
+err_destroy_packet_crypt:
+ destroy_workqueue(wg->packet_crypt_wq);
+err_destroy_handshake_send:
+ destroy_workqueue(wg->handshake_send_wq);
+err_destroy_handshake_receive:
+ destroy_workqueue(wg->handshake_receive_wq);
+err_free_incoming_handshakes:
+ free_percpu(wg->incoming_handshakes_worker);
+err_free_tstats:
+ free_percpu(dev->tstats);
+err_free_index_hashtable:
+ kvfree(wg->index_hashtable);
+err_free_peer_hashtable:
+ kvfree(wg->peer_hashtable);
+ return ret;
+}
+
+static struct rtnl_link_ops link_ops __read_mostly = {
+ .kind = KBUILD_MODNAME,
+ .priv_size = sizeof(struct wg_device),
+ .setup = wg_setup,
+ .newlink = wg_newlink,
+};
+
+static void wg_netns_exit(struct net *net)
+{
+ struct wg_device *wg;
+
+ rtnl_lock();
+ list_for_each_entry(wg, &device_list, device_list) {
+ if (rcu_access_pointer(wg->creating_net) == net) {
+ pr_debug("%s: Creating namespace exiting\n", wg->dev->name);
+ netif_carrier_off(wg->dev);
+ mutex_lock(&wg->device_update_lock);
+ rcu_assign_pointer(wg->creating_net, NULL);
+ wg_socket_reinit(wg, NULL, NULL);
+ mutex_unlock(&wg->device_update_lock);
+ }
+ }
+ rtnl_unlock();
+}
+
+static struct pernet_operations pernet_ops = {
+ .exit = wg_netns_exit
+};
+
+int __init wg_device_init(void)
+{
+ int ret;
+
+#ifdef CONFIG_PM_SLEEP
+ ret = register_pm_notifier(&pm_notifier);
+ if (ret)
+ return ret;
+#endif
+
+ ret = register_pernet_device(&pernet_ops);
+ if (ret)
+ goto error_pm;
+
+ ret = rtnl_link_register(&link_ops);
+ if (ret)
+ goto error_pernet;
+
+ return 0;
+
+error_pernet:
+ unregister_pernet_device(&pernet_ops);
+error_pm:
+#ifdef CONFIG_PM_SLEEP
+ unregister_pm_notifier(&pm_notifier);
+#endif
+ return ret;
+}
+
+void wg_device_uninit(void)
+{
+ rtnl_link_unregister(&link_ops);
+ unregister_pernet_device(&pernet_ops);
+#ifdef CONFIG_PM_SLEEP
+ unregister_pm_notifier(&pm_notifier);
+#endif
+ rcu_barrier();
+}
diff --git a/drivers/net/wireguard/device.h b/drivers/net/wireguard/device.h
new file mode 100644
index 0000000..4d0144e
--- /dev/null
+++ b/drivers/net/wireguard/device.h
@@ -0,0 +1,64 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#ifndef _WG_DEVICE_H
+#define _WG_DEVICE_H
+
+#include "noise.h"
+#include "allowedips.h"
+#include "peerlookup.h"
+#include "cookie.h"
+
+#include <linux/types.h>
+#include <linux/netdevice.h>
+#include <linux/workqueue.h>
+#include <linux/mutex.h>
+#include <linux/net.h>
+#include <linux/ptr_ring.h>
+
+struct wg_device;
+
+struct multicore_worker {
+ void *ptr;
+ struct work_struct work;
+};
+
+struct crypt_queue {
+ struct ptr_ring ring;
+ union {
+ struct {
+ struct multicore_worker __percpu *worker;
+ int last_cpu;
+ };
+ struct work_struct work;
+ };
+};
+
+struct wg_device {
+ struct net_device *dev;
+ struct crypt_queue encrypt_queue, decrypt_queue;
+ struct sock __rcu *sock4, *sock6;
+ struct net __rcu *creating_net;
+ struct noise_static_identity static_identity;
+ struct workqueue_struct *handshake_receive_wq, *handshake_send_wq;
+ struct workqueue_struct *packet_crypt_wq;
+ struct sk_buff_head incoming_handshakes;
+ int incoming_handshake_cpu;
+ struct multicore_worker __percpu *incoming_handshakes_worker;
+ struct cookie_checker cookie_checker;
+ struct pubkey_hashtable *peer_hashtable;
+ struct index_hashtable *index_hashtable;
+ struct allowedips peer_allowedips;
+ struct mutex device_update_lock, socket_update_lock;
+ struct list_head device_list, peer_list;
+ unsigned int num_peers, device_update_gen;
+ u32 fwmark;
+ u16 incoming_port;
+};
+
+int wg_device_init(void);
+void wg_device_uninit(void);
+
+#endif /* _WG_DEVICE_H */
diff --git a/drivers/net/wireguard/main.c b/drivers/net/wireguard/main.c
new file mode 100644
index 0000000..7a7d5f1
--- /dev/null
+++ b/drivers/net/wireguard/main.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#include "version.h"
+#include "device.h"
+#include "noise.h"
+#include "queueing.h"
+#include "ratelimiter.h"
+#include "netlink.h"
+
+#include <uapi/linux/wireguard.h>
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/genetlink.h>
+#include <net/rtnetlink.h>
+
+static int __init mod_init(void)
+{
+ int ret;
+
+#ifdef DEBUG
+ if (!wg_allowedips_selftest() || !wg_packet_counter_selftest() ||
+ !wg_ratelimiter_selftest())
+ return -ENOTRECOVERABLE;
+#endif
+ wg_noise_init();
+
+ ret = wg_device_init();
+ if (ret < 0)
+ goto err_device;
+
+ ret = wg_genetlink_init();
+ if (ret < 0)
+ goto err_netlink;
+
+ pr_info("WireGuard " WIREGUARD_VERSION " loaded. See www.wireguard.com for information.\n");
+ pr_info("Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.\n");
+
+ return 0;
+
+err_netlink:
+ wg_device_uninit();
+err_device:
+ return ret;
+}
+
+static void __exit mod_exit(void)
+{
+ wg_genetlink_uninit();
+ wg_device_uninit();
+}
+
+module_init(mod_init);
+module_exit(mod_exit);
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("WireGuard secure network tunnel");
+MODULE_AUTHOR("Jason A. Donenfeld <Jason@zx2c4.com>");
+MODULE_VERSION(WIREGUARD_VERSION);
+MODULE_ALIAS_RTNL_LINK(KBUILD_MODNAME);
+MODULE_ALIAS_GENL_FAMILY(WG_GENL_NAME);
diff --git a/drivers/net/wireguard/messages.h b/drivers/net/wireguard/messages.h
new file mode 100644
index 0000000..208da72
--- /dev/null
+++ b/drivers/net/wireguard/messages.h
@@ -0,0 +1,128 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#ifndef _WG_MESSAGES_H
+#define _WG_MESSAGES_H
+
+#include <crypto/curve25519.h>
+#include <crypto/chacha20poly1305.h>
+#include <crypto/blake2s.h>
+
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/skbuff.h>
+
+enum noise_lengths {
+ NOISE_PUBLIC_KEY_LEN = CURVE25519_KEY_SIZE,
+ NOISE_SYMMETRIC_KEY_LEN = CHACHA20POLY1305_KEY_SIZE,
+ NOISE_TIMESTAMP_LEN = sizeof(u64) + sizeof(u32),
+ NOISE_AUTHTAG_LEN = CHACHA20POLY1305_AUTHTAG_SIZE,
+ NOISE_HASH_LEN = BLAKE2S_HASH_SIZE
+};
+
+#define noise_encrypted_len(plain_len) ((plain_len) + NOISE_AUTHTAG_LEN)
+
+enum cookie_values {
+ COOKIE_SECRET_MAX_AGE = 2 * 60,
+ COOKIE_SECRET_LATENCY = 5,
+ COOKIE_NONCE_LEN = XCHACHA20POLY1305_NONCE_SIZE,
+ COOKIE_LEN = 16
+};
+
+enum counter_values {
+ COUNTER_BITS_TOTAL = 8192,
+ COUNTER_REDUNDANT_BITS = BITS_PER_LONG,
+ COUNTER_WINDOW_SIZE = COUNTER_BITS_TOTAL - COUNTER_REDUNDANT_BITS
+};
+
+enum limits {
+ REKEY_AFTER_MESSAGES = 1ULL << 60,
+ REJECT_AFTER_MESSAGES = U64_MAX - COUNTER_WINDOW_SIZE - 1,
+ REKEY_TIMEOUT = 5,
+ REKEY_TIMEOUT_JITTER_MAX_JIFFIES = HZ / 3,
+ REKEY_AFTER_TIME = 120,
+ REJECT_AFTER_TIME = 180,
+ INITIATIONS_PER_SECOND = 50,
+ MAX_PEERS_PER_DEVICE = 1U << 20,
+ KEEPALIVE_TIMEOUT = 10,
+ MAX_TIMER_HANDSHAKES = 90 / REKEY_TIMEOUT,
+ MAX_QUEUED_INCOMING_HANDSHAKES = 4096, /* TODO: replace this with DQL */
+ MAX_STAGED_PACKETS = 128,
+ MAX_QUEUED_PACKETS = 1024 /* TODO: replace this with DQL */
+};
+
+enum message_type {
+ MESSAGE_INVALID = 0,
+ MESSAGE_HANDSHAKE_INITIATION = 1,
+ MESSAGE_HANDSHAKE_RESPONSE = 2,
+ MESSAGE_HANDSHAKE_COOKIE = 3,
+ MESSAGE_DATA = 4
+};
+
+struct message_header {
+ /* The actual layout of this that we want is:
+ * u8 type
+ * u8 reserved_zero[3]
+ *
+ * But it turns out that by encoding this as little endian,
+ * we achieve the same thing, and it makes checking faster.
+ */
+ __le32 type;
+};
+
+struct message_macs {
+ u8 mac1[COOKIE_LEN];
+ u8 mac2[COOKIE_LEN];
+};
+
+struct message_handshake_initiation {
+ struct message_header header;
+ __le32 sender_index;
+ u8 unencrypted_ephemeral[NOISE_PUBLIC_KEY_LEN];
+ u8 encrypted_static[noise_encrypted_len(NOISE_PUBLIC_KEY_LEN)];
+ u8 encrypted_timestamp[noise_encrypted_len(NOISE_TIMESTAMP_LEN)];
+ struct message_macs macs;
+};
+
+struct message_handshake_response {
+ struct message_header header;
+ __le32 sender_index;
+ __le32 receiver_index;
+ u8 unencrypted_ephemeral[NOISE_PUBLIC_KEY_LEN];
+ u8 encrypted_nothing[noise_encrypted_len(0)];
+ struct message_macs macs;
+};
+
+struct message_handshake_cookie {
+ struct message_header header;
+ __le32 receiver_index;
+ u8 nonce[COOKIE_NONCE_LEN];
+ u8 encrypted_cookie[noise_encrypted_len(COOKIE_LEN)];
+};
+
+struct message_data {
+ struct message_header header;
+ __le32 key_idx;
+ __le64 counter;
+ u8 encrypted_data[];
+};
+
+#define message_data_len(plain_len) \
+ (noise_encrypted_len(plain_len) + sizeof(struct message_data))
+
+enum message_alignments {
+ MESSAGE_PADDING_MULTIPLE = 16,
+ MESSAGE_MINIMUM_LENGTH = message_data_len(0)
+};
+
+#define SKB_HEADER_LEN \
+ (max(sizeof(struct iphdr), sizeof(struct ipv6hdr)) + \
+ sizeof(struct udphdr) + NET_SKB_PAD)
+#define DATA_PACKET_HEAD_ROOM \
+ ALIGN(sizeof(struct message_data) + SKB_HEADER_LEN, 4)
+
+enum { HANDSHAKE_DSCP = 0x88 /* AF41, plus 00 ECN */ };
+
+#endif /* _WG_MESSAGES_H */
diff --git a/drivers/net/wireguard/netlink.c b/drivers/net/wireguard/netlink.c
new file mode 100644
index 0000000..a4377ad
--- /dev/null
+++ b/drivers/net/wireguard/netlink.c
@@ -0,0 +1,651 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#include "netlink.h"
+#include "device.h"
+#include "peer.h"
+#include "socket.h"
+#include "queueing.h"
+#include "messages.h"
+
+#include <uapi/linux/wireguard.h>
+
+#include <linux/if.h>
+#include <net/genetlink.h>
+#include <net/sock.h>
+#include <crypto/algapi.h>
+
+struct __uapi_kernel_timespec {
+ int64_t tv_sec, tv_nsec;
+};
+
+static struct genl_family genl_family;
+
+static const struct nla_policy device_policy[WGDEVICE_A_MAX + 1] = {
+ [WGDEVICE_A_IFINDEX] = { .type = NLA_U32 },
+ [WGDEVICE_A_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ - 1 },
+ [WGDEVICE_A_PRIVATE_KEY] = { .len = NOISE_PUBLIC_KEY_LEN },
+ [WGDEVICE_A_PUBLIC_KEY] = { .len = NOISE_PUBLIC_KEY_LEN },
+ [WGDEVICE_A_FLAGS] = { .type = NLA_U32 },
+ [WGDEVICE_A_LISTEN_PORT] = { .type = NLA_U16 },
+ [WGDEVICE_A_FWMARK] = { .type = NLA_U32 },
+ [WGDEVICE_A_PEERS] = { .type = NLA_NESTED }
+};
+
+static const struct nla_policy peer_policy[WGPEER_A_MAX + 1] = {
+ [WGPEER_A_PUBLIC_KEY] = { .len = NOISE_PUBLIC_KEY_LEN },
+ [WGPEER_A_PRESHARED_KEY] = { .len = NOISE_SYMMETRIC_KEY_LEN },
+ [WGPEER_A_FLAGS] = { .type = NLA_U32 },
+ [WGPEER_A_ENDPOINT] = { .len = sizeof(struct sockaddr) },
+ [WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL] = { .type = NLA_U16 },
+ [WGPEER_A_LAST_HANDSHAKE_TIME] = { .len = sizeof(struct __uapi_kernel_timespec) },
+ [WGPEER_A_RX_BYTES] = { .type = NLA_U64 },
+ [WGPEER_A_TX_BYTES] = { .type = NLA_U64 },
+ [WGPEER_A_ALLOWEDIPS] = { .type = NLA_NESTED },
+ [WGPEER_A_PROTOCOL_VERSION] = { .type = NLA_U32 }
+};
+
+static const struct nla_policy allowedip_policy[WGALLOWEDIP_A_MAX + 1] = {
+ [WGALLOWEDIP_A_FAMILY] = { .type = NLA_U16 },
+ [WGALLOWEDIP_A_IPADDR] = { .len = sizeof(struct in_addr) },
+ [WGALLOWEDIP_A_CIDR_MASK] = { .type = NLA_U8 }
+};
+
+static struct wg_device *lookup_interface(struct nlattr **attrs,
+ struct sk_buff *skb)
+{
+ struct net_device *dev = NULL;
+
+ if (!attrs[WGDEVICE_A_IFINDEX] == !attrs[WGDEVICE_A_IFNAME])
+ return ERR_PTR(-EBADR);
+ if (attrs[WGDEVICE_A_IFINDEX])
+ dev = dev_get_by_index(sock_net(skb->sk),
+ nla_get_u32(attrs[WGDEVICE_A_IFINDEX]));
+ else if (attrs[WGDEVICE_A_IFNAME])
+ dev = dev_get_by_name(sock_net(skb->sk),
+ nla_data(attrs[WGDEVICE_A_IFNAME]));
+ if (!dev)
+ return ERR_PTR(-ENODEV);
+ if (!dev->rtnl_link_ops || !dev->rtnl_link_ops->kind ||
+ strcmp(dev->rtnl_link_ops->kind, KBUILD_MODNAME)) {
+ dev_put(dev);
+ return ERR_PTR(-EOPNOTSUPP);
+ }
+ return netdev_priv(dev);
+}
+
+static int get_allowedips(struct sk_buff *skb, const u8 *ip, u8 cidr,
+ int family)
+{
+ struct nlattr *allowedip_nest;
+
+ allowedip_nest = nla_nest_start(skb, 0);
+ if (!allowedip_nest)
+ return -EMSGSIZE;
+
+ if (nla_put_u8(skb, WGALLOWEDIP_A_CIDR_MASK, cidr) ||
+ nla_put_u16(skb, WGALLOWEDIP_A_FAMILY, family) ||
+ nla_put(skb, WGALLOWEDIP_A_IPADDR, family == AF_INET6 ?
+ sizeof(struct in6_addr) : sizeof(struct in_addr), ip)) {
+ nla_nest_cancel(skb, allowedip_nest);
+ return -EMSGSIZE;
+ }
+
+ nla_nest_end(skb, allowedip_nest);
+ return 0;
+}
+
+struct dump_ctx {
+ struct wg_device *wg;
+ struct wg_peer *next_peer;
+ u64 allowedips_seq;
+ struct allowedips_node *next_allowedip;
+};
+
+#define DUMP_CTX(cb) ((struct dump_ctx *)(cb)->args)
+
+static int
+get_peer(struct wg_peer *peer, struct sk_buff *skb, struct dump_ctx *ctx)
+{
+
+ struct nlattr *allowedips_nest, *peer_nest = nla_nest_start(skb, 0);
+ struct allowedips_node *allowedips_node = ctx->next_allowedip;
+ bool fail;
+
+ if (!peer_nest)
+ return -EMSGSIZE;
+
+ down_read(&peer->handshake.lock);
+ fail = nla_put(skb, WGPEER_A_PUBLIC_KEY, NOISE_PUBLIC_KEY_LEN,
+ peer->handshake.remote_static);
+ up_read(&peer->handshake.lock);
+ if (fail)
+ goto err;
+
+ if (!allowedips_node) {
+ const struct __uapi_kernel_timespec last_handshake = {
+ .tv_sec = peer->walltime_last_handshake.tv_sec,
+ .tv_nsec = peer->walltime_last_handshake.tv_nsec
+ };
+
+ down_read(&peer->handshake.lock);
+ fail = nla_put(skb, WGPEER_A_PRESHARED_KEY,
+ NOISE_SYMMETRIC_KEY_LEN,
+ peer->handshake.preshared_key);
+ up_read(&peer->handshake.lock);
+ if (fail)
+ goto err;
+
+ if (nla_put(skb, WGPEER_A_LAST_HANDSHAKE_TIME,
+ sizeof(last_handshake), &last_handshake) ||
+ nla_put_u16(skb, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
+ peer->persistent_keepalive_interval) ||
+ nla_put_u64_64bit(skb, WGPEER_A_TX_BYTES, peer->tx_bytes,
+ WGPEER_A_UNSPEC) ||
+ nla_put_u64_64bit(skb, WGPEER_A_RX_BYTES, peer->rx_bytes,
+ WGPEER_A_UNSPEC) ||
+ nla_put_u32(skb, WGPEER_A_PROTOCOL_VERSION, 1))
+ goto err;
+
+ read_lock_bh(&peer->endpoint_lock);
+ if (peer->endpoint.addr.sa_family == AF_INET)
+ fail = nla_put(skb, WGPEER_A_ENDPOINT,
+ sizeof(peer->endpoint.addr4),
+ &peer->endpoint.addr4);
+ else if (peer->endpoint.addr.sa_family == AF_INET6)
+ fail = nla_put(skb, WGPEER_A_ENDPOINT,
+ sizeof(peer->endpoint.addr6),
+ &peer->endpoint.addr6);
+ read_unlock_bh(&peer->endpoint_lock);
+ if (fail)
+ goto err;
+ allowedips_node =
+ list_first_entry_or_null(&peer->allowedips_list,
+ struct allowedips_node, peer_list);
+ }
+ if (!allowedips_node)
+ goto no_allowedips;
+ if (!ctx->allowedips_seq)
+ ctx->allowedips_seq = peer->device->peer_allowedips.seq;
+ else if (ctx->allowedips_seq != peer->device->peer_allowedips.seq)
+ goto no_allowedips;
+
+ allowedips_nest = nla_nest_start(skb, WGPEER_A_ALLOWEDIPS);
+ if (!allowedips_nest)
+ goto err;
+
+ list_for_each_entry_from(allowedips_node, &peer->allowedips_list,
+ peer_list) {
+ u8 cidr, ip[16] __aligned(__alignof(u64));
+ int family;
+
+ family = wg_allowedips_read_node(allowedips_node, ip, &cidr);
+ if (get_allowedips(skb, ip, cidr, family)) {
+ nla_nest_end(skb, allowedips_nest);
+ nla_nest_end(skb, peer_nest);
+ ctx->next_allowedip = allowedips_node;
+ return -EMSGSIZE;
+ }
+ }
+ nla_nest_end(skb, allowedips_nest);
+no_allowedips:
+ nla_nest_end(skb, peer_nest);
+ ctx->next_allowedip = NULL;
+ ctx->allowedips_seq = 0;
+ return 0;
+err:
+ nla_nest_cancel(skb, peer_nest);
+ return -EMSGSIZE;
+}
+
+static int wg_get_device_start(struct netlink_callback *cb)
+{
+ struct nlattr **attrs = genl_family_attrbuf(&genl_family);
+ struct wg_device *wg;
+ int ret;
+
+ ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + genl_family.hdrsize, attrs,
+ genl_family.maxattr, device_policy, NULL);
+ if (ret < 0)
+ return ret;
+ wg = lookup_interface(attrs, cb->skb);
+ if (IS_ERR(wg))
+ return PTR_ERR(wg);
+ DUMP_CTX(cb)->wg = wg;
+ return 0;
+}
+
+static int wg_get_device_dump(struct sk_buff *skb, struct netlink_callback *cb)
+{
+ struct wg_peer *peer, *next_peer_cursor;
+ struct dump_ctx *ctx = DUMP_CTX(cb);
+ struct wg_device *wg = ctx->wg;
+ struct nlattr *peers_nest;
+ int ret = -EMSGSIZE;
+ bool done = true;
+ void *hdr;
+
+ rtnl_lock();
+ mutex_lock(&wg->device_update_lock);
+ cb->seq = wg->device_update_gen;
+ next_peer_cursor = ctx->next_peer;
+
+ hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq,
+ &genl_family, NLM_F_MULTI, WG_CMD_GET_DEVICE);
+ if (!hdr)
+ goto out;
+ genl_dump_check_consistent(cb, hdr);
+
+ if (!ctx->next_peer) {
+ if (nla_put_u16(skb, WGDEVICE_A_LISTEN_PORT,
+ wg->incoming_port) ||
+ nla_put_u32(skb, WGDEVICE_A_FWMARK, wg->fwmark) ||
+ nla_put_u32(skb, WGDEVICE_A_IFINDEX, wg->dev->ifindex) ||
+ nla_put_string(skb, WGDEVICE_A_IFNAME, wg->dev->name))
+ goto out;
+
+ down_read(&wg->static_identity.lock);
+ if (wg->static_identity.has_identity) {
+ if (nla_put(skb, WGDEVICE_A_PRIVATE_KEY,
+ NOISE_PUBLIC_KEY_LEN,
+ wg->static_identity.static_private) ||
+ nla_put(skb, WGDEVICE_A_PUBLIC_KEY,
+ NOISE_PUBLIC_KEY_LEN,
+ wg->static_identity.static_public)) {
+ up_read(&wg->static_identity.lock);
+ goto out;
+ }
+ }
+ up_read(&wg->static_identity.lock);
+ }
+
+ peers_nest = nla_nest_start(skb, WGDEVICE_A_PEERS);
+ if (!peers_nest)
+ goto out;
+ ret = 0;
+ /* If the last cursor was removed via list_del_init in peer_remove, then
+ * we just treat this the same as there being no more peers left. The
+ * reason is that seq_nr should indicate to userspace that this isn't a
+ * coherent dump anyway, so they'll try again.
+ */
+ if (list_empty(&wg->peer_list) ||
+ (ctx->next_peer && list_empty(&ctx->next_peer->peer_list))) {
+ nla_nest_cancel(skb, peers_nest);
+ goto out;
+ }
+ lockdep_assert_held(&wg->device_update_lock);
+ peer = list_prepare_entry(ctx->next_peer, &wg->peer_list, peer_list);
+ list_for_each_entry_continue(peer, &wg->peer_list, peer_list) {
+ if (get_peer(peer, skb, ctx)) {
+ done = false;
+ break;
+ }
+ next_peer_cursor = peer;
+ }
+ nla_nest_end(skb, peers_nest);
+
+out:
+ if (!ret && !done && next_peer_cursor)
+ wg_peer_get(next_peer_cursor);
+ wg_peer_put(ctx->next_peer);
+ mutex_unlock(&wg->device_update_lock);
+ rtnl_unlock();
+
+ if (ret) {
+ genlmsg_cancel(skb, hdr);
+ return ret;
+ }
+ genlmsg_end(skb, hdr);
+ if (done) {
+ ctx->next_peer = NULL;
+ return 0;
+ }
+ ctx->next_peer = next_peer_cursor;
+ return skb->len;
+
+ /* At this point, we can't really deal ourselves with safely zeroing out
+ * the private key material after usage. This will need an additional API
+ * in the kernel for marking skbs as zero_on_free.
+ */
+}
+
+static int wg_get_device_done(struct netlink_callback *cb)
+{
+ struct dump_ctx *ctx = DUMP_CTX(cb);
+
+ if (ctx->wg)
+ dev_put(ctx->wg->dev);
+ wg_peer_put(ctx->next_peer);
+ return 0;
+}
+
+static int set_port(struct wg_device *wg, u16 port)
+{
+ struct wg_peer *peer;
+
+ if (wg->incoming_port == port)
+ return 0;
+ list_for_each_entry(peer, &wg->peer_list, peer_list)
+ wg_socket_clear_peer_endpoint_src(peer);
+ if (!netif_running(wg->dev)) {
+ wg->incoming_port = port;
+ return 0;
+ }
+ return wg_socket_init(wg, port);
+}
+
+static int set_allowedip(struct wg_peer *peer, struct nlattr **attrs)
+{
+ int ret = -EINVAL;
+ u16 family;
+ u8 cidr;
+
+ if (!attrs[WGALLOWEDIP_A_FAMILY] || !attrs[WGALLOWEDIP_A_IPADDR] ||
+ !attrs[WGALLOWEDIP_A_CIDR_MASK])
+ return ret;
+ family = nla_get_u16(attrs[WGALLOWEDIP_A_FAMILY]);
+ cidr = nla_get_u8(attrs[WGALLOWEDIP_A_CIDR_MASK]);
+
+ if (family == AF_INET && cidr <= 32 &&
+ nla_len(attrs[WGALLOWEDIP_A_IPADDR]) == sizeof(struct in_addr))
+ ret = wg_allowedips_insert_v4(
+ &peer->device->peer_allowedips,
+ nla_data(attrs[WGALLOWEDIP_A_IPADDR]), cidr, peer,
+ &peer->device->device_update_lock);
+ else if (family == AF_INET6 && cidr <= 128 &&
+ nla_len(attrs[WGALLOWEDIP_A_IPADDR]) == sizeof(struct in6_addr))
+ ret = wg_allowedips_insert_v6(
+ &peer->device->peer_allowedips,
+ nla_data(attrs[WGALLOWEDIP_A_IPADDR]), cidr, peer,
+ &peer->device->device_update_lock);
+
+ return ret;
+}
+
+static int set_peer(struct wg_device *wg, struct nlattr **attrs)
+{
+ u8 *public_key = NULL, *preshared_key = NULL;
+ struct wg_peer *peer = NULL;
+ u32 flags = 0;
+ int ret;
+
+ ret = -EINVAL;
+ if (attrs[WGPEER_A_PUBLIC_KEY] &&
+ nla_len(attrs[WGPEER_A_PUBLIC_KEY]) == NOISE_PUBLIC_KEY_LEN)
+ public_key = nla_data(attrs[WGPEER_A_PUBLIC_KEY]);
+ else
+ goto out;
+ if (attrs[WGPEER_A_PRESHARED_KEY] &&
+ nla_len(attrs[WGPEER_A_PRESHARED_KEY]) == NOISE_SYMMETRIC_KEY_LEN)
+ preshared_key = nla_data(attrs[WGPEER_A_PRESHARED_KEY]);
+
+ if (attrs[WGPEER_A_FLAGS])
+ flags = nla_get_u32(attrs[WGPEER_A_FLAGS]);
+ ret = -EOPNOTSUPP;
+ if (flags & ~__WGPEER_F_ALL)
+ goto out;
+
+ ret = -EPFNOSUPPORT;
+ if (attrs[WGPEER_A_PROTOCOL_VERSION]) {
+ if (nla_get_u32(attrs[WGPEER_A_PROTOCOL_VERSION]) != 1)
+ goto out;
+ }
+
+ peer = wg_pubkey_hashtable_lookup(wg->peer_hashtable,
+ nla_data(attrs[WGPEER_A_PUBLIC_KEY]));
+ ret = 0;
+ if (!peer) { /* Peer doesn't exist yet. Add a new one. */
+ if (flags & (WGPEER_F_REMOVE_ME | WGPEER_F_UPDATE_ONLY))
+ goto out;
+
+ /* The peer is new, so there aren't allowed IPs to remove. */
+ flags &= ~WGPEER_F_REPLACE_ALLOWEDIPS;
+
+ down_read(&wg->static_identity.lock);
+ if (wg->static_identity.has_identity &&
+ !memcmp(nla_data(attrs[WGPEER_A_PUBLIC_KEY]),
+ wg->static_identity.static_public,
+ NOISE_PUBLIC_KEY_LEN)) {
+ /* We silently ignore peers that have the same public
+ * key as the device. The reason we do it silently is
+ * that we'd like for people to be able to reuse the
+ * same set of API calls across peers.
+ */
+ up_read(&wg->static_identity.lock);
+ ret = 0;
+ goto out;
+ }
+ up_read(&wg->static_identity.lock);
+
+ peer = wg_peer_create(wg, public_key, preshared_key);
+ if (IS_ERR(peer)) {
+ ret = PTR_ERR(peer);
+ peer = NULL;
+ goto out;
+ }
+ /* Take additional reference, as though we've just been
+ * looked up.
+ */
+ wg_peer_get(peer);
+ }
+
+ if (flags & WGPEER_F_REMOVE_ME) {
+ wg_peer_remove(peer);
+ goto out;
+ }
+
+ if (preshared_key) {
+ down_write(&peer->handshake.lock);
+ memcpy(&peer->handshake.preshared_key, preshared_key,
+ NOISE_SYMMETRIC_KEY_LEN);
+ up_write(&peer->handshake.lock);
+ }
+
+ if (attrs[WGPEER_A_ENDPOINT]) {
+ struct sockaddr *addr = nla_data(attrs[WGPEER_A_ENDPOINT]);
+ size_t len = nla_len(attrs[WGPEER_A_ENDPOINT]);
+
+ if ((len == sizeof(struct sockaddr_in) &&
+ addr->sa_family == AF_INET) ||
+ (len == sizeof(struct sockaddr_in6) &&
+ addr->sa_family == AF_INET6)) {
+ struct endpoint endpoint = { { { 0 } } };
+
+ memcpy(&endpoint.addr, addr, len);
+ wg_socket_set_peer_endpoint(peer, &endpoint);
+ }
+ }
+
+ if (flags & WGPEER_F_REPLACE_ALLOWEDIPS)
+ wg_allowedips_remove_by_peer(&wg->peer_allowedips, peer,
+ &wg->device_update_lock);
+
+ if (attrs[WGPEER_A_ALLOWEDIPS]) {
+ struct nlattr *attr, *allowedip[WGALLOWEDIP_A_MAX + 1];
+ int rem;
+
+ nla_for_each_nested(attr, attrs[WGPEER_A_ALLOWEDIPS], rem) {
+ ret = nla_parse_nested(allowedip, WGALLOWEDIP_A_MAX,
+ attr, allowedip_policy, NULL);
+ if (ret < 0)
+ goto out;
+ ret = set_allowedip(peer, allowedip);
+ if (ret < 0)
+ goto out;
+ }
+ }
+
+ if (attrs[WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL]) {
+ const u16 persistent_keepalive_interval = nla_get_u16(
+ attrs[WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL]);
+ const bool send_keepalive =
+ !peer->persistent_keepalive_interval &&
+ persistent_keepalive_interval &&
+ netif_running(wg->dev);
+
+ peer->persistent_keepalive_interval = persistent_keepalive_interval;
+ if (send_keepalive)
+ wg_packet_send_keepalive(peer);
+ }
+
+ if (netif_running(wg->dev))
+ wg_packet_send_staged_packets(peer);
+
+out:
+ wg_peer_put(peer);
+ if (attrs[WGPEER_A_PRESHARED_KEY])
+ memzero_explicit(nla_data(attrs[WGPEER_A_PRESHARED_KEY]),
+ nla_len(attrs[WGPEER_A_PRESHARED_KEY]));
+ return ret;
+}
+
+static int wg_set_device(struct sk_buff *skb, struct genl_info *info)
+{
+ struct wg_device *wg = lookup_interface(info->attrs, skb);
+ u32 flags = 0;
+ int ret;
+
+ if (IS_ERR(wg)) {
+ ret = PTR_ERR(wg);
+ goto out_nodev;
+ }
+
+ rtnl_lock();
+ mutex_lock(&wg->device_update_lock);
+
+ if (info->attrs[WGDEVICE_A_FLAGS])
+ flags = nla_get_u32(info->attrs[WGDEVICE_A_FLAGS]);
+ ret = -EOPNOTSUPP;
+ if (flags & ~__WGDEVICE_F_ALL)
+ goto out;
+
+ if (info->attrs[WGDEVICE_A_LISTEN_PORT] || info->attrs[WGDEVICE_A_FWMARK]) {
+ struct net *net;
+ rcu_read_lock();
+ net = rcu_dereference(wg->creating_net);
+ ret = !net || !ns_capable(net->user_ns, CAP_NET_ADMIN) ? -EPERM : 0;
+ rcu_read_unlock();
+ if (ret)
+ goto out;
+ }
+
+ ++wg->device_update_gen;
+
+ if (info->attrs[WGDEVICE_A_FWMARK]) {
+ struct wg_peer *peer;
+
+ wg->fwmark = nla_get_u32(info->attrs[WGDEVICE_A_FWMARK]);
+ list_for_each_entry(peer, &wg->peer_list, peer_list)
+ wg_socket_clear_peer_endpoint_src(peer);
+ }
+
+ if (info->attrs[WGDEVICE_A_LISTEN_PORT]) {
+ ret = set_port(wg,
+ nla_get_u16(info->attrs[WGDEVICE_A_LISTEN_PORT]));
+ if (ret)
+ goto out;
+ }
+
+ if (flags & WGDEVICE_F_REPLACE_PEERS)
+ wg_peer_remove_all(wg);
+
+ if (info->attrs[WGDEVICE_A_PRIVATE_KEY] &&
+ nla_len(info->attrs[WGDEVICE_A_PRIVATE_KEY]) ==
+ NOISE_PUBLIC_KEY_LEN) {
+ u8 *private_key = nla_data(info->attrs[WGDEVICE_A_PRIVATE_KEY]);
+ u8 public_key[NOISE_PUBLIC_KEY_LEN];
+ struct wg_peer *peer, *temp;
+
+ if (!crypto_memneq(wg->static_identity.static_private,
+ private_key, NOISE_PUBLIC_KEY_LEN))
+ goto skip_set_private_key;
+
+ /* We remove before setting, to prevent race, which means doing
+ * two 25519-genpub ops.
+ */
+ if (curve25519_generate_public(public_key, private_key)) {
+ peer = wg_pubkey_hashtable_lookup(wg->peer_hashtable,
+ public_key);
+ if (peer) {
+ wg_peer_put(peer);
+ wg_peer_remove(peer);
+ }
+ }
+
+ down_write(&wg->static_identity.lock);
+ wg_noise_set_static_identity_private_key(&wg->static_identity,
+ private_key);
+ list_for_each_entry_safe(peer, temp, &wg->peer_list,
+ peer_list) {
+ wg_noise_precompute_static_static(peer);
+ wg_noise_expire_current_peer_keypairs(peer);
+ }
+ wg_cookie_checker_precompute_device_keys(&wg->cookie_checker);
+ up_write(&wg->static_identity.lock);
+ }
+skip_set_private_key:
+
+ if (info->attrs[WGDEVICE_A_PEERS]) {
+ struct nlattr *attr, *peer[WGPEER_A_MAX + 1];
+ int rem;
+
+ nla_for_each_nested(attr, info->attrs[WGDEVICE_A_PEERS], rem) {
+ ret = nla_parse_nested(peer, WGPEER_A_MAX, attr,
+ peer_policy, NULL);
+ if (ret < 0)
+ goto out;
+ ret = set_peer(wg, peer);
+ if (ret < 0)
+ goto out;
+ }
+ }
+ ret = 0;
+
+out:
+ mutex_unlock(&wg->device_update_lock);
+ rtnl_unlock();
+ dev_put(wg->dev);
+out_nodev:
+ if (info->attrs[WGDEVICE_A_PRIVATE_KEY])
+ memzero_explicit(nla_data(info->attrs[WGDEVICE_A_PRIVATE_KEY]),
+ nla_len(info->attrs[WGDEVICE_A_PRIVATE_KEY]));
+ return ret;
+}
+
+static const struct genl_ops genl_ops[] = {
+ {
+ .cmd = WG_CMD_GET_DEVICE,
+ .start = wg_get_device_start,
+ .dumpit = wg_get_device_dump,
+ .done = wg_get_device_done,
+ .flags = GENL_UNS_ADMIN_PERM,
+ .policy = device_policy
+ }, {
+ .cmd = WG_CMD_SET_DEVICE,
+ .doit = wg_set_device,
+ .flags = GENL_UNS_ADMIN_PERM,
+ .policy = device_policy
+ }
+};
+
+static struct genl_family genl_family __ro_after_init = {
+ .ops = genl_ops,
+ .n_ops = ARRAY_SIZE(genl_ops),
+ .name = WG_GENL_NAME,
+ .version = WG_GENL_VERSION,
+ .maxattr = WGDEVICE_A_MAX,
+ .module = THIS_MODULE,
+ .netnsok = true
+};
+
+int __init wg_genetlink_init(void)
+{
+ return genl_register_family(&genl_family);
+}
+
+void __exit wg_genetlink_uninit(void)
+{
+ genl_unregister_family(&genl_family);
+}
diff --git a/drivers/net/wireguard/netlink.h b/drivers/net/wireguard/netlink.h
new file mode 100644
index 0000000..15100d9
--- /dev/null
+++ b/drivers/net/wireguard/netlink.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#ifndef _WG_NETLINK_H
+#define _WG_NETLINK_H
+
+int wg_genetlink_init(void);
+void wg_genetlink_uninit(void);
+
+#endif /* _WG_NETLINK_H */
diff --git a/drivers/net/wireguard/noise.c b/drivers/net/wireguard/noise.c
new file mode 100644
index 0000000..27cb504
--- /dev/null
+++ b/drivers/net/wireguard/noise.c
@@ -0,0 +1,828 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#include "noise.h"
+#include "device.h"
+#include "peer.h"
+#include "messages.h"
+#include "queueing.h"
+#include "peerlookup.h"
+
+#include <linux/rcupdate.h>
+#include <linux/slab.h>
+#include <linux/bitmap.h>
+#include <linux/scatterlist.h>
+#include <linux/highmem.h>
+#include <crypto/algapi.h>
+
+/* This implements Noise_IKpsk2:
+ *
+ * <- s
+ * ******
+ * -> e, es, s, ss, {t}
+ * <- e, ee, se, psk, {}
+ */
+
+static const u8 handshake_name[37] = "Noise_IKpsk2_25519_ChaChaPoly_BLAKE2s";
+static const u8 identifier_name[34] = "WireGuard v1 zx2c4 Jason@zx2c4.com";
+static u8 handshake_init_hash[NOISE_HASH_LEN] __ro_after_init;
+static u8 handshake_init_chaining_key[NOISE_HASH_LEN] __ro_after_init;
+static atomic64_t keypair_counter = ATOMIC64_INIT(0);
+
+void __init wg_noise_init(void)
+{
+ struct blake2s_state blake;
+
+ blake2s(handshake_init_chaining_key, handshake_name, NULL,
+ NOISE_HASH_LEN, sizeof(handshake_name), 0);
+ blake2s_init(&blake, NOISE_HASH_LEN);
+ blake2s_update(&blake, handshake_init_chaining_key, NOISE_HASH_LEN);
+ blake2s_update(&blake, identifier_name, sizeof(identifier_name));
+ blake2s_final(&blake, handshake_init_hash);
+}
+
+/* Must hold peer->handshake.static_identity->lock */
+void wg_noise_precompute_static_static(struct wg_peer *peer)
+{
+ down_write(&peer->handshake.lock);
+ if (!peer->handshake.static_identity->has_identity ||
+ !curve25519(peer->handshake.precomputed_static_static,
+ peer->handshake.static_identity->static_private,
+ peer->handshake.remote_static))
+ memset(peer->handshake.precomputed_static_static, 0,
+ NOISE_PUBLIC_KEY_LEN);
+ up_write(&peer->handshake.lock);
+}
+
+void wg_noise_handshake_init(struct noise_handshake *handshake,
+ struct noise_static_identity *static_identity,
+ const u8 peer_public_key[NOISE_PUBLIC_KEY_LEN],
+ const u8 peer_preshared_key[NOISE_SYMMETRIC_KEY_LEN],
+ struct wg_peer *peer)
+{
+ memset(handshake, 0, sizeof(*handshake));
+ init_rwsem(&handshake->lock);
+ handshake->entry.type = INDEX_HASHTABLE_HANDSHAKE;
+ handshake->entry.peer = peer;
+ memcpy(handshake->remote_static, peer_public_key, NOISE_PUBLIC_KEY_LEN);
+ if (peer_preshared_key)
+ memcpy(handshake->preshared_key, peer_preshared_key,
+ NOISE_SYMMETRIC_KEY_LEN);
+ handshake->static_identity = static_identity;
+ handshake->state = HANDSHAKE_ZEROED;
+ wg_noise_precompute_static_static(peer);
+}
+
+static void handshake_zero(struct noise_handshake *handshake)
+{
+ memset(&handshake->ephemeral_private, 0, NOISE_PUBLIC_KEY_LEN);
+ memset(&handshake->remote_ephemeral, 0, NOISE_PUBLIC_KEY_LEN);
+ memset(&handshake->hash, 0, NOISE_HASH_LEN);
+ memset(&handshake->chaining_key, 0, NOISE_HASH_LEN);
+ handshake->remote_index = 0;
+ handshake->state = HANDSHAKE_ZEROED;
+}
+
+void wg_noise_handshake_clear(struct noise_handshake *handshake)
+{
+ down_write(&handshake->lock);
+ wg_index_hashtable_remove(
+ handshake->entry.peer->device->index_hashtable,
+ &handshake->entry);
+ handshake_zero(handshake);
+ up_write(&handshake->lock);
+}
+
+static struct noise_keypair *keypair_create(struct wg_peer *peer)
+{
+ struct noise_keypair *keypair = kzalloc(sizeof(*keypair), GFP_KERNEL);
+
+ if (unlikely(!keypair))
+ return NULL;
+ spin_lock_init(&keypair->receiving_counter.lock);
+ keypair->internal_id = atomic64_inc_return(&keypair_counter);
+ keypair->entry.type = INDEX_HASHTABLE_KEYPAIR;
+ keypair->entry.peer = peer;
+ kref_init(&keypair->refcount);
+ return keypair;
+}
+
+static void keypair_free_rcu(struct rcu_head *rcu)
+{
+ kzfree(container_of(rcu, struct noise_keypair, rcu));
+}
+
+static void keypair_free_kref(struct kref *kref)
+{
+ struct noise_keypair *keypair =
+ container_of(kref, struct noise_keypair, refcount);
+
+ net_dbg_ratelimited("%s: Keypair %llu destroyed for peer %llu\n",
+ keypair->entry.peer->device->dev->name,
+ keypair->internal_id,
+ keypair->entry.peer->internal_id);
+ wg_index_hashtable_remove(keypair->entry.peer->device->index_hashtable,
+ &keypair->entry);
+ call_rcu(&keypair->rcu, keypair_free_rcu);
+}
+
+void wg_noise_keypair_put(struct noise_keypair *keypair, bool unreference_now)
+{
+ if (unlikely(!keypair))
+ return;
+ if (unlikely(unreference_now))
+ wg_index_hashtable_remove(
+ keypair->entry.peer->device->index_hashtable,
+ &keypair->entry);
+ kref_put(&keypair->refcount, keypair_free_kref);
+}
+
+struct noise_keypair *wg_noise_keypair_get(struct noise_keypair *keypair)
+{
+ RCU_LOCKDEP_WARN(!rcu_read_lock_bh_held(),
+ "Taking noise keypair reference without holding the RCU BH read lock");
+ if (unlikely(!keypair || !kref_get_unless_zero(&keypair->refcount)))
+ return NULL;
+ return keypair;
+}
+
+void wg_noise_keypairs_clear(struct noise_keypairs *keypairs)
+{
+ struct noise_keypair *old;
+
+ spin_lock_bh(&keypairs->keypair_update_lock);
+
+ /* We zero the next_keypair before zeroing the others, so that
+ * wg_noise_received_with_keypair returns early before subsequent ones
+ * are zeroed.
+ */
+ old = rcu_dereference_protected(keypairs->next_keypair,
+ lockdep_is_held(&keypairs->keypair_update_lock));
+ RCU_INIT_POINTER(keypairs->next_keypair, NULL);
+ wg_noise_keypair_put(old, true);
+
+ old = rcu_dereference_protected(keypairs->previous_keypair,
+ lockdep_is_held(&keypairs->keypair_update_lock));
+ RCU_INIT_POINTER(keypairs->previous_keypair, NULL);
+ wg_noise_keypair_put(old, true);
+
+ old = rcu_dereference_protected(keypairs->current_keypair,
+ lockdep_is_held(&keypairs->keypair_update_lock));
+ RCU_INIT_POINTER(keypairs->current_keypair, NULL);
+ wg_noise_keypair_put(old, true);
+
+ spin_unlock_bh(&keypairs->keypair_update_lock);
+}
+
+void wg_noise_expire_current_peer_keypairs(struct wg_peer *peer)
+{
+ struct noise_keypair *keypair;
+
+ wg_noise_handshake_clear(&peer->handshake);
+ wg_noise_reset_last_sent_handshake(&peer->last_sent_handshake);
+
+ spin_lock_bh(&peer->keypairs.keypair_update_lock);
+ keypair = rcu_dereference_protected(peer->keypairs.next_keypair,
+ lockdep_is_held(&peer->keypairs.keypair_update_lock));
+ if (keypair)
+ keypair->sending.is_valid = false;
+ keypair = rcu_dereference_protected(peer->keypairs.current_keypair,
+ lockdep_is_held(&peer->keypairs.keypair_update_lock));
+ if (keypair)
+ keypair->sending.is_valid = false;
+ spin_unlock_bh(&peer->keypairs.keypair_update_lock);
+}
+
+static void add_new_keypair(struct noise_keypairs *keypairs,
+ struct noise_keypair *new_keypair)
+{
+ struct noise_keypair *previous_keypair, *next_keypair, *current_keypair;
+
+ spin_lock_bh(&keypairs->keypair_update_lock);
+ previous_keypair = rcu_dereference_protected(keypairs->previous_keypair,
+ lockdep_is_held(&keypairs->keypair_update_lock));
+ next_keypair = rcu_dereference_protected(keypairs->next_keypair,
+ lockdep_is_held(&keypairs->keypair_update_lock));
+ current_keypair = rcu_dereference_protected(keypairs->current_keypair,
+ lockdep_is_held(&keypairs->keypair_update_lock));
+ if (new_keypair->i_am_the_initiator) {
+ /* If we're the initiator, it means we've sent a handshake, and
+ * received a confirmation response, which means this new
+ * keypair can now be used.
+ */
+ if (next_keypair) {
+ /* If there already was a next keypair pending, we
+ * demote it to be the previous keypair, and free the
+ * existing current. Note that this means KCI can result
+ * in this transition. It would perhaps be more sound to
+ * always just get rid of the unused next keypair
+ * instead of putting it in the previous slot, but this
+ * might be a bit less robust. Something to think about
+ * for the future.
+ */
+ RCU_INIT_POINTER(keypairs->next_keypair, NULL);
+ rcu_assign_pointer(keypairs->previous_keypair,
+ next_keypair);
+ wg_noise_keypair_put(current_keypair, true);
+ } else /* If there wasn't an existing next keypair, we replace
+ * the previous with the current one.
+ */
+ rcu_assign_pointer(keypairs->previous_keypair,
+ current_keypair);
+ /* At this point we can get rid of the old previous keypair, and
+ * set up the new keypair.
+ */
+ wg_noise_keypair_put(previous_keypair, true);
+ rcu_assign_pointer(keypairs->current_keypair, new_keypair);
+ } else {
+ /* If we're the responder, it means we can't use the new keypair
+ * until we receive confirmation via the first data packet, so
+ * we get rid of the existing previous one, the possibly
+ * existing next one, and slide in the new next one.
+ */
+ rcu_assign_pointer(keypairs->next_keypair, new_keypair);
+ wg_noise_keypair_put(next_keypair, true);
+ RCU_INIT_POINTER(keypairs->previous_keypair, NULL);
+ wg_noise_keypair_put(previous_keypair, true);
+ }
+ spin_unlock_bh(&keypairs->keypair_update_lock);
+}
+
+bool wg_noise_received_with_keypair(struct noise_keypairs *keypairs,
+ struct noise_keypair *received_keypair)
+{
+ struct noise_keypair *old_keypair;
+ bool key_is_new;
+
+ /* We first check without taking the spinlock. */
+ key_is_new = received_keypair ==
+ rcu_access_pointer(keypairs->next_keypair);
+ if (likely(!key_is_new))
+ return false;
+
+ spin_lock_bh(&keypairs->keypair_update_lock);
+ /* After locking, we double check that things didn't change from
+ * beneath us.
+ */
+ if (unlikely(received_keypair !=
+ rcu_dereference_protected(keypairs->next_keypair,
+ lockdep_is_held(&keypairs->keypair_update_lock)))) {
+ spin_unlock_bh(&keypairs->keypair_update_lock);
+ return false;
+ }
+
+ /* When we've finally received the confirmation, we slide the next
+ * into the current, the current into the previous, and get rid of
+ * the old previous.
+ */
+ old_keypair = rcu_dereference_protected(keypairs->previous_keypair,
+ lockdep_is_held(&keypairs->keypair_update_lock));
+ rcu_assign_pointer(keypairs->previous_keypair,
+ rcu_dereference_protected(keypairs->current_keypair,
+ lockdep_is_held(&keypairs->keypair_update_lock)));
+ wg_noise_keypair_put(old_keypair, true);
+ rcu_assign_pointer(keypairs->current_keypair, received_keypair);
+ RCU_INIT_POINTER(keypairs->next_keypair, NULL);
+
+ spin_unlock_bh(&keypairs->keypair_update_lock);
+ return true;
+}
+
+/* Must hold static_identity->lock */
+void wg_noise_set_static_identity_private_key(
+ struct noise_static_identity *static_identity,
+ const u8 private_key[NOISE_PUBLIC_KEY_LEN])
+{
+ memcpy(static_identity->static_private, private_key,
+ NOISE_PUBLIC_KEY_LEN);
+ curve25519_clamp_secret(static_identity->static_private);
+ static_identity->has_identity = curve25519_generate_public(
+ static_identity->static_public, private_key);
+}
+
+/* This is Hugo Krawczyk's HKDF:
+ * - https://eprint.iacr.org/2010/264.pdf
+ * - https://tools.ietf.org/html/rfc5869
+ */
+static void kdf(u8 *first_dst, u8 *second_dst, u8 *third_dst, const u8 *data,
+ size_t first_len, size_t second_len, size_t third_len,
+ size_t data_len, const u8 chaining_key[NOISE_HASH_LEN])
+{
+ u8 output[BLAKE2S_HASH_SIZE + 1];
+ u8 secret[BLAKE2S_HASH_SIZE];
+
+ WARN_ON(IS_ENABLED(DEBUG) &&
+ (first_len > BLAKE2S_HASH_SIZE ||
+ second_len > BLAKE2S_HASH_SIZE ||
+ third_len > BLAKE2S_HASH_SIZE ||
+ ((second_len || second_dst || third_len || third_dst) &&
+ (!first_len || !first_dst)) ||
+ ((third_len || third_dst) && (!second_len || !second_dst))));
+
+ /* Extract entropy from data into secret */
+ blake2s256_hmac(secret, data, chaining_key, data_len, NOISE_HASH_LEN);
+
+ if (!first_dst || !first_len)
+ goto out;
+
+ /* Expand first key: key = secret, data = 0x1 */
+ output[0] = 1;
+ blake2s256_hmac(output, output, secret, 1, BLAKE2S_HASH_SIZE);
+ memcpy(first_dst, output, first_len);
+
+ if (!second_dst || !second_len)
+ goto out;
+
+ /* Expand second key: key = secret, data = first-key || 0x2 */
+ output[BLAKE2S_HASH_SIZE] = 2;
+ blake2s256_hmac(output, output, secret, BLAKE2S_HASH_SIZE + 1,
+ BLAKE2S_HASH_SIZE);
+ memcpy(second_dst, output, second_len);
+
+ if (!third_dst || !third_len)
+ goto out;
+
+ /* Expand third key: key = secret, data = second-key || 0x3 */
+ output[BLAKE2S_HASH_SIZE] = 3;
+ blake2s256_hmac(output, output, secret, BLAKE2S_HASH_SIZE + 1,
+ BLAKE2S_HASH_SIZE);
+ memcpy(third_dst, output, third_len);
+
+out:
+ /* Clear sensitive data from stack */
+ memzero_explicit(secret, BLAKE2S_HASH_SIZE);
+ memzero_explicit(output, BLAKE2S_HASH_SIZE + 1);
+}
+
+static void derive_keys(struct noise_symmetric_key *first_dst,
+ struct noise_symmetric_key *second_dst,
+ const u8 chaining_key[NOISE_HASH_LEN])
+{
+ u64 birthdate = ktime_get_coarse_boottime_ns();
+ kdf(first_dst->key, second_dst->key, NULL, NULL,
+ NOISE_SYMMETRIC_KEY_LEN, NOISE_SYMMETRIC_KEY_LEN, 0, 0,
+ chaining_key);
+ first_dst->birthdate = second_dst->birthdate = birthdate;
+ first_dst->is_valid = second_dst->is_valid = true;
+}
+
+static bool __must_check mix_dh(u8 chaining_key[NOISE_HASH_LEN],
+ u8 key[NOISE_SYMMETRIC_KEY_LEN],
+ const u8 private[NOISE_PUBLIC_KEY_LEN],
+ const u8 public[NOISE_PUBLIC_KEY_LEN])
+{
+ u8 dh_calculation[NOISE_PUBLIC_KEY_LEN];
+
+ if (unlikely(!curve25519(dh_calculation, private, public)))
+ return false;
+ kdf(chaining_key, key, NULL, dh_calculation, NOISE_HASH_LEN,
+ NOISE_SYMMETRIC_KEY_LEN, 0, NOISE_PUBLIC_KEY_LEN, chaining_key);
+ memzero_explicit(dh_calculation, NOISE_PUBLIC_KEY_LEN);
+ return true;
+}
+
+static bool __must_check mix_precomputed_dh(u8 chaining_key[NOISE_HASH_LEN],
+ u8 key[NOISE_SYMMETRIC_KEY_LEN],
+ const u8 precomputed[NOISE_PUBLIC_KEY_LEN])
+{
+ static u8 zero_point[NOISE_PUBLIC_KEY_LEN];
+ if (unlikely(!crypto_memneq(precomputed, zero_point, NOISE_PUBLIC_KEY_LEN)))
+ return false;
+ kdf(chaining_key, key, NULL, precomputed, NOISE_HASH_LEN,
+ NOISE_SYMMETRIC_KEY_LEN, 0, NOISE_PUBLIC_KEY_LEN,
+ chaining_key);
+ return true;
+}
+
+static void mix_hash(u8 hash[NOISE_HASH_LEN], const u8 *src, size_t src_len)
+{
+ struct blake2s_state blake;
+
+ blake2s_init(&blake, NOISE_HASH_LEN);
+ blake2s_update(&blake, hash, NOISE_HASH_LEN);
+ blake2s_update(&blake, src, src_len);
+ blake2s_final(&blake, hash);
+}
+
+static void mix_psk(u8 chaining_key[NOISE_HASH_LEN], u8 hash[NOISE_HASH_LEN],
+ u8 key[NOISE_SYMMETRIC_KEY_LEN],
+ const u8 psk[NOISE_SYMMETRIC_KEY_LEN])
+{
+ u8 temp_hash[NOISE_HASH_LEN];
+
+ kdf(chaining_key, temp_hash, key, psk, NOISE_HASH_LEN, NOISE_HASH_LEN,
+ NOISE_SYMMETRIC_KEY_LEN, NOISE_SYMMETRIC_KEY_LEN, chaining_key);
+ mix_hash(hash, temp_hash, NOISE_HASH_LEN);
+ memzero_explicit(temp_hash, NOISE_HASH_LEN);
+}
+
+static void handshake_init(u8 chaining_key[NOISE_HASH_LEN],
+ u8 hash[NOISE_HASH_LEN],
+ const u8 remote_static[NOISE_PUBLIC_KEY_LEN])
+{
+ memcpy(hash, handshake_init_hash, NOISE_HASH_LEN);
+ memcpy(chaining_key, handshake_init_chaining_key, NOISE_HASH_LEN);
+ mix_hash(hash, remote_static, NOISE_PUBLIC_KEY_LEN);
+}
+
+static void message_encrypt(u8 *dst_ciphertext, const u8 *src_plaintext,
+ size_t src_len, u8 key[NOISE_SYMMETRIC_KEY_LEN],
+ u8 hash[NOISE_HASH_LEN])
+{
+ chacha20poly1305_encrypt(dst_ciphertext, src_plaintext, src_len, hash,
+ NOISE_HASH_LEN,
+ 0 /* Always zero for Noise_IK */, key);
+ mix_hash(hash, dst_ciphertext, noise_encrypted_len(src_len));
+}
+
+static bool message_decrypt(u8 *dst_plaintext, const u8 *src_ciphertext,
+ size_t src_len, u8 key[NOISE_SYMMETRIC_KEY_LEN],
+ u8 hash[NOISE_HASH_LEN])
+{
+ if (!chacha20poly1305_decrypt(dst_plaintext, src_ciphertext, src_len,
+ hash, NOISE_HASH_LEN,
+ 0 /* Always zero for Noise_IK */, key))
+ return false;
+ mix_hash(hash, src_ciphertext, src_len);
+ return true;
+}
+
+static void message_ephemeral(u8 ephemeral_dst[NOISE_PUBLIC_KEY_LEN],
+ const u8 ephemeral_src[NOISE_PUBLIC_KEY_LEN],
+ u8 chaining_key[NOISE_HASH_LEN],
+ u8 hash[NOISE_HASH_LEN])
+{
+ if (ephemeral_dst != ephemeral_src)
+ memcpy(ephemeral_dst, ephemeral_src, NOISE_PUBLIC_KEY_LEN);
+ mix_hash(hash, ephemeral_src, NOISE_PUBLIC_KEY_LEN);
+ kdf(chaining_key, NULL, NULL, ephemeral_src, NOISE_HASH_LEN, 0, 0,
+ NOISE_PUBLIC_KEY_LEN, chaining_key);
+}
+
+static void tai64n_now(u8 output[NOISE_TIMESTAMP_LEN])
+{
+ struct timespec64 now;
+
+ ktime_get_real_ts64(&now);
+
+ /* In order to prevent some sort of infoleak from precise timers, we
+ * round down the nanoseconds part to the closest rounded-down power of
+ * two to the maximum initiations per second allowed anyway by the
+ * implementation.
+ */
+ now.tv_nsec = ALIGN_DOWN(now.tv_nsec,
+ rounddown_pow_of_two(NSEC_PER_SEC / INITIATIONS_PER_SECOND));
+
+ /* https://cr.yp.to/libtai/tai64.html */
+ *(__be64 *)output = cpu_to_be64(0x400000000000000aULL + now.tv_sec);
+ *(__be32 *)(output + sizeof(__be64)) = cpu_to_be32(now.tv_nsec);
+}
+
+bool
+wg_noise_handshake_create_initiation(struct message_handshake_initiation *dst,
+ struct noise_handshake *handshake)
+{
+ u8 timestamp[NOISE_TIMESTAMP_LEN];
+ u8 key[NOISE_SYMMETRIC_KEY_LEN];
+ bool ret = false;
+
+ /* We need to wait for crng _before_ taking any locks, since
+ * curve25519_generate_secret uses get_random_bytes_wait.
+ */
+ wait_for_random_bytes();
+
+ down_read(&handshake->static_identity->lock);
+ down_write(&handshake->lock);
+
+ if (unlikely(!handshake->static_identity->has_identity))
+ goto out;
+
+ dst->header.type = cpu_to_le32(MESSAGE_HANDSHAKE_INITIATION);
+
+ handshake_init(handshake->chaining_key, handshake->hash,
+ handshake->remote_static);
+
+ /* e */
+ curve25519_generate_secret(handshake->ephemeral_private);
+ if (!curve25519_generate_public(dst->unencrypted_ephemeral,
+ handshake->ephemeral_private))
+ goto out;
+ message_ephemeral(dst->unencrypted_ephemeral,
+ dst->unencrypted_ephemeral, handshake->chaining_key,
+ handshake->hash);
+
+ /* es */
+ if (!mix_dh(handshake->chaining_key, key, handshake->ephemeral_private,
+ handshake->remote_static))
+ goto out;
+
+ /* s */
+ message_encrypt(dst->encrypted_static,
+ handshake->static_identity->static_public,
+ NOISE_PUBLIC_KEY_LEN, key, handshake->hash);
+
+ /* ss */
+ if (!mix_precomputed_dh(handshake->chaining_key, key,
+ handshake->precomputed_static_static))
+ goto out;
+
+ /* {t} */
+ tai64n_now(timestamp);
+ message_encrypt(dst->encrypted_timestamp, timestamp,
+ NOISE_TIMESTAMP_LEN, key, handshake->hash);
+
+ dst->sender_index = wg_index_hashtable_insert(
+ handshake->entry.peer->device->index_hashtable,
+ &handshake->entry);
+
+ handshake->state = HANDSHAKE_CREATED_INITIATION;
+ ret = true;
+
+out:
+ up_write(&handshake->lock);
+ up_read(&handshake->static_identity->lock);
+ memzero_explicit(key, NOISE_SYMMETRIC_KEY_LEN);
+ return ret;
+}
+
+struct wg_peer *
+wg_noise_handshake_consume_initiation(struct message_handshake_initiation *src,
+ struct wg_device *wg)
+{
+ struct wg_peer *peer = NULL, *ret_peer = NULL;
+ struct noise_handshake *handshake;
+ bool replay_attack, flood_attack;
+ u8 key[NOISE_SYMMETRIC_KEY_LEN];
+ u8 chaining_key[NOISE_HASH_LEN];
+ u8 hash[NOISE_HASH_LEN];
+ u8 s[NOISE_PUBLIC_KEY_LEN];
+ u8 e[NOISE_PUBLIC_KEY_LEN];
+ u8 t[NOISE_TIMESTAMP_LEN];
+ u64 initiation_consumption;
+
+ down_read(&wg->static_identity.lock);
+ if (unlikely(!wg->static_identity.has_identity))
+ goto out;
+
+ handshake_init(chaining_key, hash, wg->static_identity.static_public);
+
+ /* e */
+ message_ephemeral(e, src->unencrypted_ephemeral, chaining_key, hash);
+
+ /* es */
+ if (!mix_dh(chaining_key, key, wg->static_identity.static_private, e))
+ goto out;
+
+ /* s */
+ if (!message_decrypt(s, src->encrypted_static,
+ sizeof(src->encrypted_static), key, hash))
+ goto out;
+
+ /* Lookup which peer we're actually talking to */
+ peer = wg_pubkey_hashtable_lookup(wg->peer_hashtable, s);
+ if (!peer)
+ goto out;
+ handshake = &peer->handshake;
+
+ /* ss */
+ if (!mix_precomputed_dh(chaining_key, key,
+ handshake->precomputed_static_static))
+ goto out;
+
+ /* {t} */
+ if (!message_decrypt(t, src->encrypted_timestamp,
+ sizeof(src->encrypted_timestamp), key, hash))
+ goto out;
+
+ down_read(&handshake->lock);
+ replay_attack = memcmp(t, handshake->latest_timestamp,
+ NOISE_TIMESTAMP_LEN) <= 0;
+ flood_attack = (s64)handshake->last_initiation_consumption +
+ NSEC_PER_SEC / INITIATIONS_PER_SECOND >
+ (s64)ktime_get_coarse_boottime_ns();
+ up_read(&handshake->lock);
+ if (replay_attack || flood_attack)
+ goto out;
+
+ /* Success! Copy everything to peer */
+ down_write(&handshake->lock);
+ memcpy(handshake->remote_ephemeral, e, NOISE_PUBLIC_KEY_LEN);
+ if (memcmp(t, handshake->latest_timestamp, NOISE_TIMESTAMP_LEN) > 0)
+ memcpy(handshake->latest_timestamp, t, NOISE_TIMESTAMP_LEN);
+ memcpy(handshake->hash, hash, NOISE_HASH_LEN);
+ memcpy(handshake->chaining_key, chaining_key, NOISE_HASH_LEN);
+ handshake->remote_index = src->sender_index;
+ initiation_consumption = ktime_get_coarse_boottime_ns();
+ if ((s64)(handshake->last_initiation_consumption - initiation_consumption) < 0)
+ handshake->last_initiation_consumption = initiation_consumption;
+ handshake->state = HANDSHAKE_CONSUMED_INITIATION;
+ up_write(&handshake->lock);
+ ret_peer = peer;
+
+out:
+ memzero_explicit(key, NOISE_SYMMETRIC_KEY_LEN);
+ memzero_explicit(hash, NOISE_HASH_LEN);
+ memzero_explicit(chaining_key, NOISE_HASH_LEN);
+ up_read(&wg->static_identity.lock);
+ if (!ret_peer)
+ wg_peer_put(peer);
+ return ret_peer;
+}
+
+bool wg_noise_handshake_create_response(struct message_handshake_response *dst,
+ struct noise_handshake *handshake)
+{
+ u8 key[NOISE_SYMMETRIC_KEY_LEN];
+ bool ret = false;
+
+ /* We need to wait for crng _before_ taking any locks, since
+ * curve25519_generate_secret uses get_random_bytes_wait.
+ */
+ wait_for_random_bytes();
+
+ down_read(&handshake->static_identity->lock);
+ down_write(&handshake->lock);
+
+ if (handshake->state != HANDSHAKE_CONSUMED_INITIATION)
+ goto out;
+
+ dst->header.type = cpu_to_le32(MESSAGE_HANDSHAKE_RESPONSE);
+ dst->receiver_index = handshake->remote_index;
+
+ /* e */
+ curve25519_generate_secret(handshake->ephemeral_private);
+ if (!curve25519_generate_public(dst->unencrypted_ephemeral,
+ handshake->ephemeral_private))
+ goto out;
+ message_ephemeral(dst->unencrypted_ephemeral,
+ dst->unencrypted_ephemeral, handshake->chaining_key,
+ handshake->hash);
+
+ /* ee */
+ if (!mix_dh(handshake->chaining_key, NULL, handshake->ephemeral_private,
+ handshake->remote_ephemeral))
+ goto out;
+
+ /* se */
+ if (!mix_dh(handshake->chaining_key, NULL, handshake->ephemeral_private,
+ handshake->remote_static))
+ goto out;
+
+ /* psk */
+ mix_psk(handshake->chaining_key, handshake->hash, key,
+ handshake->preshared_key);
+
+ /* {} */
+ message_encrypt(dst->encrypted_nothing, NULL, 0, key, handshake->hash);
+
+ dst->sender_index = wg_index_hashtable_insert(
+ handshake->entry.peer->device->index_hashtable,
+ &handshake->entry);
+
+ handshake->state = HANDSHAKE_CREATED_RESPONSE;
+ ret = true;
+
+out:
+ up_write(&handshake->lock);
+ up_read(&handshake->static_identity->lock);
+ memzero_explicit(key, NOISE_SYMMETRIC_KEY_LEN);
+ return ret;
+}
+
+struct wg_peer *
+wg_noise_handshake_consume_response(struct message_handshake_response *src,
+ struct wg_device *wg)
+{
+ enum noise_handshake_state state = HANDSHAKE_ZEROED;
+ struct wg_peer *peer = NULL, *ret_peer = NULL;
+ struct noise_handshake *handshake;
+ u8 key[NOISE_SYMMETRIC_KEY_LEN];
+ u8 hash[NOISE_HASH_LEN];
+ u8 chaining_key[NOISE_HASH_LEN];
+ u8 e[NOISE_PUBLIC_KEY_LEN];
+ u8 ephemeral_private[NOISE_PUBLIC_KEY_LEN];
+ u8 static_private[NOISE_PUBLIC_KEY_LEN];
+ u8 preshared_key[NOISE_SYMMETRIC_KEY_LEN];
+
+ down_read(&wg->static_identity.lock);
+
+ if (unlikely(!wg->static_identity.has_identity))
+ goto out;
+
+ handshake = (struct noise_handshake *)wg_index_hashtable_lookup(
+ wg->index_hashtable, INDEX_HASHTABLE_HANDSHAKE,
+ src->receiver_index, &peer);
+ if (unlikely(!handshake))
+ goto out;
+
+ down_read(&handshake->lock);
+ state = handshake->state;
+ memcpy(hash, handshake->hash, NOISE_HASH_LEN);
+ memcpy(chaining_key, handshake->chaining_key, NOISE_HASH_LEN);
+ memcpy(ephemeral_private, handshake->ephemeral_private,
+ NOISE_PUBLIC_KEY_LEN);
+ memcpy(preshared_key, handshake->preshared_key,
+ NOISE_SYMMETRIC_KEY_LEN);
+ up_read(&handshake->lock);
+
+ if (state != HANDSHAKE_CREATED_INITIATION)
+ goto fail;
+
+ /* e */
+ message_ephemeral(e, src->unencrypted_ephemeral, chaining_key, hash);
+
+ /* ee */
+ if (!mix_dh(chaining_key, NULL, ephemeral_private, e))
+ goto fail;
+
+ /* se */
+ if (!mix_dh(chaining_key, NULL, wg->static_identity.static_private, e))
+ goto fail;
+
+ /* psk */
+ mix_psk(chaining_key, hash, key, preshared_key);
+
+ /* {} */
+ if (!message_decrypt(NULL, src->encrypted_nothing,
+ sizeof(src->encrypted_nothing), key, hash))
+ goto fail;
+
+ /* Success! Copy everything to peer */
+ down_write(&handshake->lock);
+ /* It's important to check that the state is still the same, while we
+ * have an exclusive lock.
+ */
+ if (handshake->state != state) {
+ up_write(&handshake->lock);
+ goto fail;
+ }
+ memcpy(handshake->remote_ephemeral, e, NOISE_PUBLIC_KEY_LEN);
+ memcpy(handshake->hash, hash, NOISE_HASH_LEN);
+ memcpy(handshake->chaining_key, chaining_key, NOISE_HASH_LEN);
+ handshake->remote_index = src->sender_index;
+ handshake->state = HANDSHAKE_CONSUMED_RESPONSE;
+ up_write(&handshake->lock);
+ ret_peer = peer;
+ goto out;
+
+fail:
+ wg_peer_put(peer);
+out:
+ memzero_explicit(key, NOISE_SYMMETRIC_KEY_LEN);
+ memzero_explicit(hash, NOISE_HASH_LEN);
+ memzero_explicit(chaining_key, NOISE_HASH_LEN);
+ memzero_explicit(ephemeral_private, NOISE_PUBLIC_KEY_LEN);
+ memzero_explicit(static_private, NOISE_PUBLIC_KEY_LEN);
+ memzero_explicit(preshared_key, NOISE_SYMMETRIC_KEY_LEN);
+ up_read(&wg->static_identity.lock);
+ return ret_peer;
+}
+
+bool wg_noise_handshake_begin_session(struct noise_handshake *handshake,
+ struct noise_keypairs *keypairs)
+{
+ struct noise_keypair *new_keypair;
+ bool ret = false;
+
+ down_write(&handshake->lock);
+ if (handshake->state != HANDSHAKE_CREATED_RESPONSE &&
+ handshake->state != HANDSHAKE_CONSUMED_RESPONSE)
+ goto out;
+
+ new_keypair = keypair_create(handshake->entry.peer);
+ if (!new_keypair)
+ goto out;
+ new_keypair->i_am_the_initiator = handshake->state ==
+ HANDSHAKE_CONSUMED_RESPONSE;
+ new_keypair->remote_index = handshake->remote_index;
+
+ if (new_keypair->i_am_the_initiator)
+ derive_keys(&new_keypair->sending, &new_keypair->receiving,
+ handshake->chaining_key);
+ else
+ derive_keys(&new_keypair->receiving, &new_keypair->sending,
+ handshake->chaining_key);
+
+ handshake_zero(handshake);
+ rcu_read_lock_bh();
+ if (likely(!READ_ONCE(container_of(handshake, struct wg_peer,
+ handshake)->is_dead))) {
+ add_new_keypair(keypairs, new_keypair);
+ net_dbg_ratelimited("%s: Keypair %llu created for peer %llu\n",
+ handshake->entry.peer->device->dev->name,
+ new_keypair->internal_id,
+ handshake->entry.peer->internal_id);
+ ret = wg_index_hashtable_replace(
+ handshake->entry.peer->device->index_hashtable,
+ &handshake->entry, &new_keypair->entry);
+ } else {
+ kzfree(new_keypair);
+ }
+ rcu_read_unlock_bh();
+
+out:
+ up_write(&handshake->lock);
+ return ret;
+}
diff --git a/drivers/net/wireguard/noise.h b/drivers/net/wireguard/noise.h
new file mode 100644
index 0000000..c527253
--- /dev/null
+++ b/drivers/net/wireguard/noise.h
@@ -0,0 +1,135 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+#ifndef _WG_NOISE_H
+#define _WG_NOISE_H
+
+#include "messages.h"
+#include "peerlookup.h"
+
+#include <linux/types.h>
+#include <linux/spinlock.h>
+#include <linux/atomic.h>
+#include <linux/rwsem.h>
+#include <linux/mutex.h>
+#include <linux/kref.h>
+
+struct noise_replay_counter {
+ u64 counter;
+ spinlock_t lock;
+ unsigned long backtrack[COUNTER_BITS_TOTAL / BITS_PER_LONG];
+};
+
+struct noise_symmetric_key {
+ u8 key[NOISE_SYMMETRIC_KEY_LEN];
+ u64 birthdate;
+ bool is_valid;
+};
+
+struct noise_keypair {
+ struct index_hashtable_entry entry;
+ struct noise_symmetric_key sending;
+ atomic64_t sending_counter;
+ struct noise_symmetric_key receiving;
+ struct noise_replay_counter receiving_counter;
+ __le32 remote_index;
+ bool i_am_the_initiator;
+ struct kref refcount;
+ struct rcu_head rcu;
+ u64 internal_id;
+};
+
+struct noise_keypairs {
+ struct noise_keypair __rcu *current_keypair;
+ struct noise_keypair __rcu *previous_keypair;
+ struct noise_keypair __rcu *next_keypair;
+ spinlock_t keypair_update_lock;
+};
+
+struct noise_static_identity {
+ u8 static_public[NOISE_PUBLIC_KEY_LEN];
+ u8 static_private[NOISE_PUBLIC_KEY_LEN];
+ struct rw_semaphore lock;
+ bool has_identity;
+};
+
+enum noise_handshake_state {
+ HANDSHAKE_ZEROED,
+ HANDSHAKE_CREATED_INITIATION,
+ HANDSHAKE_CONSUMED_INITIATION,
+ HANDSHAKE_CREATED_RESPONSE,
+ HANDSHAKE_CONSUMED_RESPONSE
+};
+
+struct noise_handshake {
+ struct index_hashtable_entry entry;
+
+ enum noise_handshake_state state;
+ u64 last_initiation_consumption;
+
+ struct noise_static_identity *static_identity;
+
+ u8 ephemeral_private[NOISE_PUBLIC_KEY_LEN];
+ u8 remote_static[NOISE_PUBLIC_KEY_LEN];
+ u8 remote_ephemeral[NOISE_PUBLIC_KEY_LEN];
+ u8 precomputed_static_static[NOISE_PUBLIC_KEY_LEN];
+
+ u8 preshared_key[NOISE_SYMMETRIC_KEY_LEN];
+
+ u8 hash[NOISE_HASH_LEN];
+ u8 chaining_key[NOISE_HASH_LEN];
+
+ u8 latest_timestamp[NOISE_TIMESTAMP_LEN];
+ __le32 remote_index;
+
+ /* Protects all members except the immutable (after noise_handshake_
+ * init): remote_static, precomputed_static_static, static_identity.
+ */
+ struct rw_semaphore lock;
+};
+
+struct wg_device;
+
+void wg_noise_init(void);
+void wg_noise_handshake_init(struct noise_handshake *handshake,
+ struct noise_static_identity *static_identity,
+ const u8 peer_public_key[NOISE_PUBLIC_KEY_LEN],
+ const u8 peer_preshared_key[NOISE_SYMMETRIC_KEY_LEN],
+ struct wg_peer *peer);
+void wg_noise_handshake_clear(struct noise_handshake *handshake);
+static inline void wg_noise_reset_last_sent_handshake(atomic64_t *handshake_ns)
+{
+ atomic64_set(handshake_ns, ktime_get_coarse_boottime_ns() -
+ (u64)(REKEY_TIMEOUT + 1) * NSEC_PER_SEC);
+}
+
+void wg_noise_keypair_put(struct noise_keypair *keypair, bool unreference_now);
+struct noise_keypair *wg_noise_keypair_get(struct noise_keypair *keypair);
+void wg_noise_keypairs_clear(struct noise_keypairs *keypairs);
+bool wg_noise_received_with_keypair(struct noise_keypairs *keypairs,
+ struct noise_keypair *received_keypair);
+void wg_noise_expire_current_peer_keypairs(struct wg_peer *peer);
+
+void wg_noise_set_static_identity_private_key(
+ struct noise_static_identity *static_identity,
+ const u8 private_key[NOISE_PUBLIC_KEY_LEN]);
+void wg_noise_precompute_static_static(struct wg_peer *peer);
+
+bool
+wg_noise_handshake_create_initiation(struct message_handshake_initiation *dst,
+ struct noise_handshake *handshake);
+struct wg_peer *
+wg_noise_handshake_consume_initiation(struct message_handshake_initiation *src,
+ struct wg_device *wg);
+
+bool wg_noise_handshake_create_response(struct message_handshake_response *dst,
+ struct noise_handshake *handshake);
+struct wg_peer *
+wg_noise_handshake_consume_response(struct message_handshake_response *src,
+ struct wg_device *wg);
+
+bool wg_noise_handshake_begin_session(struct noise_handshake *handshake,
+ struct noise_keypairs *keypairs);
+
+#endif /* _WG_NOISE_H */
diff --git a/drivers/net/wireguard/peer.c b/drivers/net/wireguard/peer.c
new file mode 100644
index 0000000..1d634bd
--- /dev/null
+++ b/drivers/net/wireguard/peer.c
@@ -0,0 +1,237 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#include "peer.h"
+#include "device.h"
+#include "queueing.h"
+#include "timers.h"
+#include "peerlookup.h"
+#include "noise.h"
+
+#include <linux/kref.h>
+#include <linux/lockdep.h>
+#include <linux/rcupdate.h>
+#include <linux/list.h>
+
+static atomic64_t peer_counter = ATOMIC64_INIT(0);
+
+struct wg_peer *wg_peer_create(struct wg_device *wg,
+ const u8 public_key[NOISE_PUBLIC_KEY_LEN],
+ const u8 preshared_key[NOISE_SYMMETRIC_KEY_LEN])
+{
+ struct wg_peer *peer;
+ int ret = -ENOMEM;
+
+ lockdep_assert_held(&wg->device_update_lock);
+
+ if (wg->num_peers >= MAX_PEERS_PER_DEVICE)
+ return ERR_PTR(ret);
+
+ peer = kzalloc(sizeof(*peer), GFP_KERNEL);
+ if (unlikely(!peer))
+ return ERR_PTR(ret);
+ peer->device = wg;
+
+ wg_noise_handshake_init(&peer->handshake, &wg->static_identity,
+ public_key, preshared_key, peer);
+ if (dst_cache_init(&peer->endpoint_cache, GFP_KERNEL))
+ goto err_1;
+ if (wg_packet_queue_init(&peer->tx_queue, wg_packet_tx_worker, false,
+ MAX_QUEUED_PACKETS))
+ goto err_2;
+ if (wg_packet_queue_init(&peer->rx_queue, NULL, false,
+ MAX_QUEUED_PACKETS))
+ goto err_3;
+
+ peer->internal_id = atomic64_inc_return(&peer_counter);
+ peer->serial_work_cpu = nr_cpumask_bits;
+ wg_cookie_init(&peer->latest_cookie);
+ wg_timers_init(peer);
+ wg_cookie_checker_precompute_peer_keys(peer);
+ spin_lock_init(&peer->keypairs.keypair_update_lock);
+ INIT_WORK(&peer->transmit_handshake_work,
+ wg_packet_handshake_send_worker);
+ rwlock_init(&peer->endpoint_lock);
+ kref_init(&peer->refcount);
+ skb_queue_head_init(&peer->staged_packet_queue);
+ wg_noise_reset_last_sent_handshake(&peer->last_sent_handshake);
+ set_bit(NAPI_STATE_NO_BUSY_POLL, &peer->napi.state);
+ netif_napi_add(wg->dev, &peer->napi, wg_packet_rx_poll,
+ NAPI_POLL_WEIGHT);
+ napi_enable(&peer->napi);
+ list_add_tail(&peer->peer_list, &wg->peer_list);
+ INIT_LIST_HEAD(&peer->allowedips_list);
+ wg_pubkey_hashtable_add(wg->peer_hashtable, peer);
+ ++wg->num_peers;
+ pr_debug("%s: Peer %llu created\n", wg->dev->name, peer->internal_id);
+ return peer;
+
+err_3:
+ wg_packet_queue_free(&peer->tx_queue, false);
+err_2:
+ dst_cache_destroy(&peer->endpoint_cache);
+err_1:
+ kfree(peer);
+ return ERR_PTR(ret);
+}
+
+struct wg_peer *wg_peer_get_maybe_zero(struct wg_peer *peer)
+{
+ RCU_LOCKDEP_WARN(!rcu_read_lock_bh_held(),
+ "Taking peer reference without holding the RCU read lock");
+ if (unlikely(!peer || !kref_get_unless_zero(&peer->refcount)))
+ return NULL;
+ return peer;
+}
+
+static void peer_make_dead(struct wg_peer *peer)
+{
+ /* Remove from configuration-time lookup structures. */
+ list_del_init(&peer->peer_list);
+ wg_allowedips_remove_by_peer(&peer->device->peer_allowedips, peer,
+ &peer->device->device_update_lock);
+ wg_pubkey_hashtable_remove(peer->device->peer_hashtable, peer);
+
+ /* Mark as dead, so that we don't allow jumping contexts after. */
+ WRITE_ONCE(peer->is_dead, true);
+
+ /* The caller must now synchronize_rcu() for this to take effect. */
+}
+
+static void peer_remove_after_dead(struct wg_peer *peer)
+{
+ WARN_ON(!peer->is_dead);
+
+ /* No more keypairs can be created for this peer, since is_dead protects
+ * add_new_keypair, so we can now destroy existing ones.
+ */
+ wg_noise_keypairs_clear(&peer->keypairs);
+
+ /* Destroy all ongoing timers that were in-flight at the beginning of
+ * this function.
+ */
+ wg_timers_stop(peer);
+
+ /* The transition between packet encryption/decryption queues isn't
+ * guarded by is_dead, but each reference's life is strictly bounded by
+ * two generations: once for parallel crypto and once for serial
+ * ingestion, so we can simply flush twice, and be sure that we no
+ * longer have references inside these queues.
+ */
+
+ /* a) For encrypt/decrypt. */
+ flush_workqueue(peer->device->packet_crypt_wq);
+ /* b.1) For send (but not receive, since that's napi). */
+ flush_workqueue(peer->device->packet_crypt_wq);
+ /* b.2.1) For receive (but not send, since that's wq). */
+ napi_disable(&peer->napi);
+ /* b.2.1) It's now safe to remove the napi struct, which must be done
+ * here from process context.
+ */
+ netif_napi_del(&peer->napi);
+
+ /* Ensure any workstructs we own (like transmit_handshake_work or
+ * clear_peer_work) no longer are in use.
+ */
+ flush_workqueue(peer->device->handshake_send_wq);
+
+ /* After the above flushes, a peer might still be active in a few
+ * different contexts: 1) from xmit(), before hitting is_dead and
+ * returning, 2) from wg_packet_consume_data(), before hitting is_dead
+ * and returning, 3) from wg_receive_handshake_packet() after a point
+ * where it has processed an incoming handshake packet, but where
+ * all calls to pass it off to timers fails because of is_dead. We won't
+ * have new references in (1) eventually, because we're removed from
+ * allowedips; we won't have new references in (2) eventually, because
+ * wg_index_hashtable_lookup will always return NULL, since we removed
+ * all existing keypairs and no more can be created; we won't have new
+ * references in (3) eventually, because we're removed from the pubkey
+ * hash table, which allows for a maximum of one handshake response,
+ * via the still-uncleared index hashtable entry, but not more than one,
+ * and in wg_cookie_message_consume, the lookup eventually gets a peer
+ * with a refcount of zero, so no new reference is taken.
+ */
+
+ --peer->device->num_peers;
+ wg_peer_put(peer);
+}
+
+/* We have a separate "remove" function make sure that all active places where
+ * a peer is currently operating will eventually come to an end and not pass
+ * their reference onto another context.
+ */
+void wg_peer_remove(struct wg_peer *peer)
+{
+ if (unlikely(!peer))
+ return;
+ lockdep_assert_held(&peer->device->device_update_lock);
+
+ peer_make_dead(peer);
+ synchronize_rcu();
+ peer_remove_after_dead(peer);
+}
+
+void wg_peer_remove_all(struct wg_device *wg)
+{
+ struct wg_peer *peer, *temp;
+ LIST_HEAD(dead_peers);
+
+ lockdep_assert_held(&wg->device_update_lock);
+
+ /* Avoid having to traverse individually for each one. */
+ wg_allowedips_free(&wg->peer_allowedips, &wg->device_update_lock);
+
+ list_for_each_entry_safe(peer, temp, &wg->peer_list, peer_list) {
+ peer_make_dead(peer);
+ list_add_tail(&peer->peer_list, &dead_peers);
+ }
+ synchronize_rcu();
+ list_for_each_entry_safe(peer, temp, &dead_peers, peer_list)
+ peer_remove_after_dead(peer);
+}
+
+static void rcu_release(struct rcu_head *rcu)
+{
+ struct wg_peer *peer = container_of(rcu, struct wg_peer, rcu);
+
+ dst_cache_destroy(&peer->endpoint_cache);
+ wg_packet_queue_free(&peer->rx_queue, false);
+ wg_packet_queue_free(&peer->tx_queue, false);
+
+ /* The final zeroing takes care of clearing any remaining handshake key
+ * material and other potentially sensitive information.
+ */
+ kzfree(peer);
+}
+
+static void kref_release(struct kref *refcount)
+{
+ struct wg_peer *peer = container_of(refcount, struct wg_peer, refcount);
+
+ pr_debug("%s: Peer %llu (%pISpfsc) destroyed\n",
+ peer->device->dev->name, peer->internal_id,
+ &peer->endpoint.addr);
+
+ /* Remove ourself from dynamic runtime lookup structures, now that the
+ * last reference is gone.
+ */
+ wg_index_hashtable_remove(peer->device->index_hashtable,
+ &peer->handshake.entry);
+
+ /* Remove any lingering packets that didn't have a chance to be
+ * transmitted.
+ */
+ wg_packet_purge_staged_packets(peer);
+
+ /* Free the memory used. */
+ call_rcu(&peer->rcu, rcu_release);
+}
+
+void wg_peer_put(struct wg_peer *peer)
+{
+ if (unlikely(!peer))
+ return;
+ kref_put(&peer->refcount, kref_release);
+}
diff --git a/drivers/net/wireguard/peer.h b/drivers/net/wireguard/peer.h
new file mode 100644
index 0000000..23af409
--- /dev/null
+++ b/drivers/net/wireguard/peer.h
@@ -0,0 +1,83 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#ifndef _WG_PEER_H
+#define _WG_PEER_H
+
+#include "device.h"
+#include "noise.h"
+#include "cookie.h"
+
+#include <linux/types.h>
+#include <linux/netfilter.h>
+#include <linux/spinlock.h>
+#include <linux/kref.h>
+#include <net/dst_cache.h>
+
+struct wg_device;
+
+struct endpoint {
+ union {
+ struct sockaddr addr;
+ struct sockaddr_in addr4;
+ struct sockaddr_in6 addr6;
+ };
+ union {
+ struct {
+ struct in_addr src4;
+ /* Essentially the same as addr6->scope_id */
+ int src_if4;
+ };
+ struct in6_addr src6;
+ };
+};
+
+struct wg_peer {
+ struct wg_device *device;
+ struct crypt_queue tx_queue, rx_queue;
+ struct sk_buff_head staged_packet_queue;
+ int serial_work_cpu;
+ struct noise_keypairs keypairs;
+ struct endpoint endpoint;
+ struct dst_cache endpoint_cache;
+ rwlock_t endpoint_lock;
+ struct noise_handshake handshake;
+ atomic64_t last_sent_handshake;
+ struct work_struct transmit_handshake_work, clear_peer_work;
+ struct cookie latest_cookie;
+ struct hlist_node pubkey_hash;
+ u64 rx_bytes, tx_bytes;
+ struct timer_list timer_retransmit_handshake, timer_send_keepalive;
+ struct timer_list timer_new_handshake, timer_zero_key_material;
+ struct timer_list timer_persistent_keepalive;
+ unsigned int timer_handshake_attempts;
+ u16 persistent_keepalive_interval;
+ bool timer_need_another_keepalive;
+ bool sent_lastminute_handshake;
+ struct timespec64 walltime_last_handshake;
+ struct kref refcount;
+ struct rcu_head rcu;
+ struct list_head peer_list;
+ struct list_head allowedips_list;
+ u64 internal_id;
+ struct napi_struct napi;
+ bool is_dead;
+};
+
+struct wg_peer *wg_peer_create(struct wg_device *wg,
+ const u8 public_key[NOISE_PUBLIC_KEY_LEN],
+ const u8 preshared_key[NOISE_SYMMETRIC_KEY_LEN]);
+
+struct wg_peer *__must_check wg_peer_get_maybe_zero(struct wg_peer *peer);
+static inline struct wg_peer *wg_peer_get(struct wg_peer *peer)
+{
+ kref_get(&peer->refcount);
+ return peer;
+}
+void wg_peer_put(struct wg_peer *peer);
+void wg_peer_remove(struct wg_peer *peer);
+void wg_peer_remove_all(struct wg_device *wg);
+
+#endif /* _WG_PEER_H */
diff --git a/drivers/net/wireguard/peerlookup.c b/drivers/net/wireguard/peerlookup.c
new file mode 100644
index 0000000..f2783aa
--- /dev/null
+++ b/drivers/net/wireguard/peerlookup.c
@@ -0,0 +1,226 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#include "peerlookup.h"
+#include "peer.h"
+#include "noise.h"
+
+static struct hlist_head *pubkey_bucket(struct pubkey_hashtable *table,
+ const u8 pubkey[NOISE_PUBLIC_KEY_LEN])
+{
+ /* siphash gives us a secure 64bit number based on a random key. Since
+ * the bits are uniformly distributed, we can then mask off to get the
+ * bits we need.
+ */
+ const u64 hash = siphash(pubkey, NOISE_PUBLIC_KEY_LEN, &table->key);
+
+ return &table->hashtable[hash & (HASH_SIZE(table->hashtable) - 1)];
+}
+
+struct pubkey_hashtable *wg_pubkey_hashtable_alloc(void)
+{
+ struct pubkey_hashtable *table = kvmalloc(sizeof(*table), GFP_KERNEL);
+
+ if (!table)
+ return NULL;
+
+ get_random_bytes(&table->key, sizeof(table->key));
+ hash_init(table->hashtable);
+ mutex_init(&table->lock);
+ return table;
+}
+
+void wg_pubkey_hashtable_add(struct pubkey_hashtable *table,
+ struct wg_peer *peer)
+{
+ mutex_lock(&table->lock);
+ hlist_add_head_rcu(&peer->pubkey_hash,
+ pubkey_bucket(table, peer->handshake.remote_static));
+ mutex_unlock(&table->lock);
+}
+
+void wg_pubkey_hashtable_remove(struct pubkey_hashtable *table,
+ struct wg_peer *peer)
+{
+ mutex_lock(&table->lock);
+ hlist_del_init_rcu(&peer->pubkey_hash);
+ mutex_unlock(&table->lock);
+}
+
+/* Returns a strong reference to a peer */
+struct wg_peer *
+wg_pubkey_hashtable_lookup(struct pubkey_hashtable *table,
+ const u8 pubkey[NOISE_PUBLIC_KEY_LEN])
+{
+ struct wg_peer *iter_peer, *peer = NULL;
+
+ rcu_read_lock_bh();
+ hlist_for_each_entry_rcu_bh(iter_peer, pubkey_bucket(table, pubkey),
+ pubkey_hash) {
+ if (!memcmp(pubkey, iter_peer->handshake.remote_static,
+ NOISE_PUBLIC_KEY_LEN)) {
+ peer = iter_peer;
+ break;
+ }
+ }
+ peer = wg_peer_get_maybe_zero(peer);
+ rcu_read_unlock_bh();
+ return peer;
+}
+
+static struct hlist_head *index_bucket(struct index_hashtable *table,
+ const __le32 index)
+{
+ /* Since the indices are random and thus all bits are uniformly
+ * distributed, we can find its bucket simply by masking.
+ */
+ return &table->hashtable[(__force u32)index &
+ (HASH_SIZE(table->hashtable) - 1)];
+}
+
+struct index_hashtable *wg_index_hashtable_alloc(void)
+{
+ struct index_hashtable *table = kvmalloc(sizeof(*table), GFP_KERNEL);
+
+ if (!table)
+ return NULL;
+
+ hash_init(table->hashtable);
+ spin_lock_init(&table->lock);
+ return table;
+}
+
+/* At the moment, we limit ourselves to 2^20 total peers, which generally might
+ * amount to 2^20*3 items in this hashtable. The algorithm below works by
+ * picking a random number and testing it. We can see that these limits mean we
+ * usually succeed pretty quickly:
+ *
+ * >>> def calculation(tries, size):
+ * ... return (size / 2**32)**(tries - 1) * (1 - (size / 2**32))
+ * ...
+ * >>> calculation(1, 2**20 * 3)
+ * 0.999267578125
+ * >>> calculation(2, 2**20 * 3)
+ * 0.0007318854331970215
+ * >>> calculation(3, 2**20 * 3)
+ * 5.360489012673497e-07
+ * >>> calculation(4, 2**20 * 3)
+ * 3.9261394135792216e-10
+ *
+ * At the moment, we don't do any masking, so this algorithm isn't exactly
+ * constant time in either the random guessing or in the hash list lookup. We
+ * could require a minimum of 3 tries, which would successfully mask the
+ * guessing. this would not, however, help with the growing hash lengths, which
+ * is another thing to consider moving forward.
+ */
+
+__le32 wg_index_hashtable_insert(struct index_hashtable *table,
+ struct index_hashtable_entry *entry)
+{
+ struct index_hashtable_entry *existing_entry;
+
+ spin_lock_bh(&table->lock);
+ hlist_del_init_rcu(&entry->index_hash);
+ spin_unlock_bh(&table->lock);
+
+ rcu_read_lock_bh();
+
+search_unused_slot:
+ /* First we try to find an unused slot, randomly, while unlocked. */
+ entry->index = (__force __le32)get_random_u32();
+ hlist_for_each_entry_rcu_bh(existing_entry,
+ index_bucket(table, entry->index),
+ index_hash) {
+ if (existing_entry->index == entry->index)
+ /* If it's already in use, we continue searching. */
+ goto search_unused_slot;
+ }
+
+ /* Once we've found an unused slot, we lock it, and then double-check
+ * that nobody else stole it from us.
+ */
+ spin_lock_bh(&table->lock);
+ hlist_for_each_entry_rcu_bh(existing_entry,
+ index_bucket(table, entry->index),
+ index_hash) {
+ if (existing_entry->index == entry->index) {
+ spin_unlock_bh(&table->lock);
+ /* If it was stolen, we start over. */
+ goto search_unused_slot;
+ }
+ }
+ /* Otherwise, we know we have it exclusively (since we're locked),
+ * so we insert.
+ */
+ hlist_add_head_rcu(&entry->index_hash,
+ index_bucket(table, entry->index));
+ spin_unlock_bh(&table->lock);
+
+ rcu_read_unlock_bh();
+
+ return entry->index;
+}
+
+bool wg_index_hashtable_replace(struct index_hashtable *table,
+ struct index_hashtable_entry *old,
+ struct index_hashtable_entry *new)
+{
+ bool ret;
+
+ spin_lock_bh(&table->lock);
+ ret = !hlist_unhashed(&old->index_hash);
+ if (unlikely(!ret))
+ goto out;
+
+ new->index = old->index;
+ hlist_replace_rcu(&old->index_hash, &new->index_hash);
+
+ /* Calling init here NULLs out index_hash, and in fact after this
+ * function returns, it's theoretically possible for this to get
+ * reinserted elsewhere. That means the RCU lookup below might either
+ * terminate early or jump between buckets, in which case the packet
+ * simply gets dropped, which isn't terrible.
+ */
+ INIT_HLIST_NODE(&old->index_hash);
+out:
+ spin_unlock_bh(&table->lock);
+ return ret;
+}
+
+void wg_index_hashtable_remove(struct index_hashtable *table,
+ struct index_hashtable_entry *entry)
+{
+ spin_lock_bh(&table->lock);
+ hlist_del_init_rcu(&entry->index_hash);
+ spin_unlock_bh(&table->lock);
+}
+
+/* Returns a strong reference to a entry->peer */
+struct index_hashtable_entry *
+wg_index_hashtable_lookup(struct index_hashtable *table,
+ const enum index_hashtable_type type_mask,
+ const __le32 index, struct wg_peer **peer)
+{
+ struct index_hashtable_entry *iter_entry, *entry = NULL;
+
+ rcu_read_lock_bh();
+ hlist_for_each_entry_rcu_bh(iter_entry, index_bucket(table, index),
+ index_hash) {
+ if (iter_entry->index == index) {
+ if (likely(iter_entry->type & type_mask))
+ entry = iter_entry;
+ break;
+ }
+ }
+ if (likely(entry)) {
+ entry->peer = wg_peer_get_maybe_zero(entry->peer);
+ if (likely(entry->peer))
+ *peer = entry->peer;
+ else
+ entry = NULL;
+ }
+ rcu_read_unlock_bh();
+ return entry;
+}
diff --git a/drivers/net/wireguard/peerlookup.h b/drivers/net/wireguard/peerlookup.h
new file mode 100644
index 0000000..ced8117
--- /dev/null
+++ b/drivers/net/wireguard/peerlookup.h
@@ -0,0 +1,64 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#ifndef _WG_PEERLOOKUP_H
+#define _WG_PEERLOOKUP_H
+
+#include "messages.h"
+
+#include <linux/hashtable.h>
+#include <linux/mutex.h>
+#include <linux/siphash.h>
+
+struct wg_peer;
+
+struct pubkey_hashtable {
+ /* TODO: move to rhashtable */
+ DECLARE_HASHTABLE(hashtable, 11);
+ siphash_key_t key;
+ struct mutex lock;
+};
+
+struct pubkey_hashtable *wg_pubkey_hashtable_alloc(void);
+void wg_pubkey_hashtable_add(struct pubkey_hashtable *table,
+ struct wg_peer *peer);
+void wg_pubkey_hashtable_remove(struct pubkey_hashtable *table,
+ struct wg_peer *peer);
+struct wg_peer *
+wg_pubkey_hashtable_lookup(struct pubkey_hashtable *table,
+ const u8 pubkey[NOISE_PUBLIC_KEY_LEN]);
+
+struct index_hashtable {
+ /* TODO: move to rhashtable */
+ DECLARE_HASHTABLE(hashtable, 13);
+ spinlock_t lock;
+};
+
+enum index_hashtable_type {
+ INDEX_HASHTABLE_HANDSHAKE = 1U << 0,
+ INDEX_HASHTABLE_KEYPAIR = 1U << 1
+};
+
+struct index_hashtable_entry {
+ struct wg_peer *peer;
+ struct hlist_node index_hash;
+ enum index_hashtable_type type;
+ __le32 index;
+};
+
+struct index_hashtable *wg_index_hashtable_alloc(void);
+__le32 wg_index_hashtable_insert(struct index_hashtable *table,
+ struct index_hashtable_entry *entry);
+bool wg_index_hashtable_replace(struct index_hashtable *table,
+ struct index_hashtable_entry *old,
+ struct index_hashtable_entry *new);
+void wg_index_hashtable_remove(struct index_hashtable *table,
+ struct index_hashtable_entry *entry);
+struct index_hashtable_entry *
+wg_index_hashtable_lookup(struct index_hashtable *table,
+ const enum index_hashtable_type type_mask,
+ const __le32 index, struct wg_peer **peer);
+
+#endif /* _WG_PEERLOOKUP_H */
diff --git a/drivers/net/wireguard/queueing.c b/drivers/net/wireguard/queueing.c
new file mode 100644
index 0000000..71b8e80
--- /dev/null
+++ b/drivers/net/wireguard/queueing.c
@@ -0,0 +1,55 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#include "queueing.h"
+
+struct multicore_worker __percpu *
+wg_packet_percpu_multicore_worker_alloc(work_func_t function, void *ptr)
+{
+ int cpu;
+ struct multicore_worker __percpu *worker =
+ alloc_percpu(struct multicore_worker);
+
+ if (!worker)
+ return NULL;
+
+ for_each_possible_cpu(cpu) {
+ per_cpu_ptr(worker, cpu)->ptr = ptr;
+ INIT_WORK(&per_cpu_ptr(worker, cpu)->work, function);
+ }
+ return worker;
+}
+
+int wg_packet_queue_init(struct crypt_queue *queue, work_func_t function,
+ bool multicore, unsigned int len)
+{
+ int ret;
+
+ memset(queue, 0, sizeof(*queue));
+ ret = ptr_ring_init(&queue->ring, len, GFP_KERNEL);
+ if (ret)
+ return ret;
+ if (function) {
+ if (multicore) {
+ queue->worker = wg_packet_percpu_multicore_worker_alloc(
+ function, queue);
+ if (!queue->worker) {
+ ptr_ring_cleanup(&queue->ring, NULL);
+ return -ENOMEM;
+ }
+ } else {
+ INIT_WORK(&queue->work, function);
+ }
+ }
+ return 0;
+}
+
+void wg_packet_queue_free(struct crypt_queue *queue, bool multicore)
+{
+ if (multicore)
+ free_percpu(queue->worker);
+ WARN_ON(!__ptr_ring_empty(&queue->ring));
+ ptr_ring_cleanup(&queue->ring, NULL);
+}
diff --git a/drivers/net/wireguard/queueing.h b/drivers/net/wireguard/queueing.h
new file mode 100644
index 0000000..866d468
--- /dev/null
+++ b/drivers/net/wireguard/queueing.h
@@ -0,0 +1,193 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#ifndef _WG_QUEUEING_H
+#define _WG_QUEUEING_H
+
+#include "peer.h"
+#include <linux/types.h>
+#include <linux/skbuff.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <net/ip_tunnels.h>
+
+struct wg_device;
+struct wg_peer;
+struct multicore_worker;
+struct crypt_queue;
+struct sk_buff;
+
+/* queueing.c APIs: */
+int wg_packet_queue_init(struct crypt_queue *queue, work_func_t function,
+ bool multicore, unsigned int len);
+void wg_packet_queue_free(struct crypt_queue *queue, bool multicore);
+struct multicore_worker __percpu *
+wg_packet_percpu_multicore_worker_alloc(work_func_t function, void *ptr);
+
+/* receive.c APIs: */
+void wg_packet_receive(struct wg_device *wg, struct sk_buff *skb);
+void wg_packet_handshake_receive_worker(struct work_struct *work);
+/* NAPI poll function: */
+int wg_packet_rx_poll(struct napi_struct *napi, int budget);
+/* Workqueue worker: */
+void wg_packet_decrypt_worker(struct work_struct *work);
+
+/* send.c APIs: */
+void wg_packet_send_queued_handshake_initiation(struct wg_peer *peer,
+ bool is_retry);
+void wg_packet_send_handshake_response(struct wg_peer *peer);
+void wg_packet_send_handshake_cookie(struct wg_device *wg,
+ struct sk_buff *initiating_skb,
+ __le32 sender_index);
+void wg_packet_send_keepalive(struct wg_peer *peer);
+void wg_packet_purge_staged_packets(struct wg_peer *peer);
+void wg_packet_send_staged_packets(struct wg_peer *peer);
+/* Workqueue workers: */
+void wg_packet_handshake_send_worker(struct work_struct *work);
+void wg_packet_tx_worker(struct work_struct *work);
+void wg_packet_encrypt_worker(struct work_struct *work);
+
+enum packet_state {
+ PACKET_STATE_UNCRYPTED,
+ PACKET_STATE_CRYPTED,
+ PACKET_STATE_DEAD
+};
+
+struct packet_cb {
+ u64 nonce;
+ struct noise_keypair *keypair;
+ atomic_t state;
+ u32 mtu;
+ u8 ds;
+};
+
+#define PACKET_CB(skb) ((struct packet_cb *)((skb)->cb))
+#define PACKET_PEER(skb) (PACKET_CB(skb)->keypair->entry.peer)
+
+static inline bool wg_check_packet_protocol(struct sk_buff *skb)
+{
+ __be16 real_protocol = ip_tunnel_parse_protocol(skb);
+ return real_protocol && skb->protocol == real_protocol;
+}
+
+static inline void wg_reset_packet(struct sk_buff *skb, bool encapsulating)
+{
+ u8 l4_hash = skb->l4_hash;
+ u8 sw_hash = skb->sw_hash;
+ u32 hash = skb->hash;
+ skb_scrub_packet(skb, true);
+ memset(&skb->headers_start, 0,
+ offsetof(struct sk_buff, headers_end) -
+ offsetof(struct sk_buff, headers_start));
+ if (encapsulating) {
+ skb->l4_hash = l4_hash;
+ skb->sw_hash = sw_hash;
+ skb->hash = hash;
+ }
+ skb->queue_mapping = 0;
+ skb->nohdr = 0;
+ skb->peeked = 0;
+ skb->mac_len = 0;
+ skb->dev = NULL;
+#ifdef CONFIG_NET_SCHED
+ skb->tc_index = 0;
+ skb_reset_tc(skb);
+#endif
+ skb->hdr_len = skb_headroom(skb);
+ skb_reset_mac_header(skb);
+ skb_reset_network_header(skb);
+ skb_reset_transport_header(skb);
+ skb_probe_transport_header(skb, 0);
+ skb_reset_inner_headers(skb);
+}
+
+static inline int wg_cpumask_choose_online(int *stored_cpu, unsigned int id)
+{
+ unsigned int cpu = *stored_cpu, cpu_index, i;
+
+ if (unlikely(cpu == nr_cpumask_bits ||
+ !cpumask_test_cpu(cpu, cpu_online_mask))) {
+ cpu_index = id % cpumask_weight(cpu_online_mask);
+ cpu = cpumask_first(cpu_online_mask);
+ for (i = 0; i < cpu_index; ++i)
+ cpu = cpumask_next(cpu, cpu_online_mask);
+ *stored_cpu = cpu;
+ }
+ return cpu;
+}
+
+/* This function is racy, in the sense that next is unlocked, so it could return
+ * the same CPU twice. A race-free version of this would be to instead store an
+ * atomic sequence number, do an increment-and-return, and then iterate through
+ * every possible CPU until we get to that index -- choose_cpu. However that's
+ * a bit slower, and it doesn't seem like this potential race actually
+ * introduces any performance loss, so we live with it.
+ */
+static inline int wg_cpumask_next_online(int *next)
+{
+ int cpu = *next;
+
+ while (unlikely(!cpumask_test_cpu(cpu, cpu_online_mask)))
+ cpu = cpumask_next(cpu, cpu_online_mask) % nr_cpumask_bits;
+ *next = cpumask_next(cpu, cpu_online_mask) % nr_cpumask_bits;
+ return cpu;
+}
+
+static inline int wg_queue_enqueue_per_device_and_peer(
+ struct crypt_queue *device_queue, struct crypt_queue *peer_queue,
+ struct sk_buff *skb, struct workqueue_struct *wq, int *next_cpu)
+{
+ int cpu;
+
+ atomic_set_release(&PACKET_CB(skb)->state, PACKET_STATE_UNCRYPTED);
+ /* We first queue this up for the peer ingestion, but the consumer
+ * will wait for the state to change to CRYPTED or DEAD before.
+ */
+ if (unlikely(ptr_ring_produce_bh(&peer_queue->ring, skb)))
+ return -ENOSPC;
+ /* Then we queue it up in the device queue, which consumes the
+ * packet as soon as it can.
+ */
+ cpu = wg_cpumask_next_online(next_cpu);
+ if (unlikely(ptr_ring_produce_bh(&device_queue->ring, skb)))
+ return -EPIPE;
+ queue_work_on(cpu, wq, &per_cpu_ptr(device_queue->worker, cpu)->work);
+ return 0;
+}
+
+static inline void wg_queue_enqueue_per_peer(struct crypt_queue *queue,
+ struct sk_buff *skb,
+ enum packet_state state)
+{
+ /* We take a reference, because as soon as we call atomic_set, the
+ * peer can be freed from below us.
+ */
+ struct wg_peer *peer = wg_peer_get(PACKET_PEER(skb));
+
+ atomic_set_release(&PACKET_CB(skb)->state, state);
+ queue_work_on(wg_cpumask_choose_online(&peer->serial_work_cpu,
+ peer->internal_id),
+ peer->device->packet_crypt_wq, &queue->work);
+ wg_peer_put(peer);
+}
+
+static inline void wg_queue_enqueue_per_peer_napi(struct sk_buff *skb,
+ enum packet_state state)
+{
+ /* We take a reference, because as soon as we call atomic_set, the
+ * peer can be freed from below us.
+ */
+ struct wg_peer *peer = wg_peer_get(PACKET_PEER(skb));
+
+ atomic_set_release(&PACKET_CB(skb)->state, state);
+ napi_schedule(&peer->napi);
+ wg_peer_put(peer);
+}
+
+#ifdef DEBUG
+bool wg_packet_counter_selftest(void);
+#endif
+
+#endif /* _WG_QUEUEING_H */
diff --git a/drivers/net/wireguard/ratelimiter.c b/drivers/net/wireguard/ratelimiter.c
new file mode 100644
index 0000000..9baa930
--- /dev/null
+++ b/drivers/net/wireguard/ratelimiter.c
@@ -0,0 +1,223 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#include "ratelimiter.h"
+#include <linux/siphash.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <net/ip.h>
+
+static struct kmem_cache *entry_cache;
+static hsiphash_key_t key;
+static spinlock_t table_lock = __SPIN_LOCK_UNLOCKED("ratelimiter_table_lock");
+static DEFINE_MUTEX(init_lock);
+static u64 init_refcnt; /* Protected by init_lock, hence not atomic. */
+static atomic_t total_entries = ATOMIC_INIT(0);
+static unsigned int max_entries, table_size;
+static void wg_ratelimiter_gc_entries(struct work_struct *);
+static DECLARE_DEFERRABLE_WORK(gc_work, wg_ratelimiter_gc_entries);
+static struct hlist_head *table_v4;
+#if IS_ENABLED(CONFIG_IPV6)
+static struct hlist_head *table_v6;
+#endif
+
+struct ratelimiter_entry {
+ u64 last_time_ns, tokens, ip;
+ void *net;
+ spinlock_t lock;
+ struct hlist_node hash;
+ struct rcu_head rcu;
+};
+
+enum {
+ PACKETS_PER_SECOND = 20,
+ PACKETS_BURSTABLE = 5,
+ PACKET_COST = NSEC_PER_SEC / PACKETS_PER_SECOND,
+ TOKEN_MAX = PACKET_COST * PACKETS_BURSTABLE
+};
+
+static void entry_free(struct rcu_head *rcu)
+{
+ kmem_cache_free(entry_cache,
+ container_of(rcu, struct ratelimiter_entry, rcu));
+ atomic_dec(&total_entries);
+}
+
+static void entry_uninit(struct ratelimiter_entry *entry)
+{
+ hlist_del_rcu(&entry->hash);
+ call_rcu(&entry->rcu, entry_free);
+}
+
+/* Calling this function with a NULL work uninits all entries. */
+static void wg_ratelimiter_gc_entries(struct work_struct *work)
+{
+ const u64 now = ktime_get_coarse_boottime_ns();
+ struct ratelimiter_entry *entry;
+ struct hlist_node *temp;
+ unsigned int i;
+
+ for (i = 0; i < table_size; ++i) {
+ spin_lock(&table_lock);
+ hlist_for_each_entry_safe(entry, temp, &table_v4[i], hash) {
+ if (unlikely(!work) ||
+ now - entry->last_time_ns > NSEC_PER_SEC)
+ entry_uninit(entry);
+ }
+#if IS_ENABLED(CONFIG_IPV6)
+ hlist_for_each_entry_safe(entry, temp, &table_v6[i], hash) {
+ if (unlikely(!work) ||
+ now - entry->last_time_ns > NSEC_PER_SEC)
+ entry_uninit(entry);
+ }
+#endif
+ spin_unlock(&table_lock);
+ if (likely(work))
+ cond_resched();
+ }
+ if (likely(work))
+ queue_delayed_work(system_power_efficient_wq, &gc_work, HZ);
+}
+
+bool wg_ratelimiter_allow(struct sk_buff *skb, struct net *net)
+{
+ /* We only take the bottom half of the net pointer, so that we can hash
+ * 3 words in the end. This way, siphash's len param fits into the final
+ * u32, and we don't incur an extra round.
+ */
+ const u32 net_word = (unsigned long)net;
+ struct ratelimiter_entry *entry;
+ struct hlist_head *bucket;
+ u64 ip;
+
+ if (skb->protocol == htons(ETH_P_IP)) {
+ ip = (u64 __force)ip_hdr(skb)->saddr;
+ bucket = &table_v4[hsiphash_2u32(net_word, ip, &key) &
+ (table_size - 1)];
+ }
+#if IS_ENABLED(CONFIG_IPV6)
+ else if (skb->protocol == htons(ETH_P_IPV6)) {
+ /* Only use 64 bits, so as to ratelimit the whole /64. */
+ memcpy(&ip, &ipv6_hdr(skb)->saddr, sizeof(ip));
+ bucket = &table_v6[hsiphash_3u32(net_word, ip >> 32, ip, &key) &
+ (table_size - 1)];
+ }
+#endif
+ else
+ return false;
+ rcu_read_lock();
+ hlist_for_each_entry_rcu(entry, bucket, hash) {
+ if (entry->net == net && entry->ip == ip) {
+ u64 now, tokens;
+ bool ret;
+ /* Quasi-inspired by nft_limit.c, but this is actually a
+ * slightly different algorithm. Namely, we incorporate
+ * the burst as part of the maximum tokens, rather than
+ * as part of the rate.
+ */
+ spin_lock(&entry->lock);
+ now = ktime_get_coarse_boottime_ns();
+ tokens = min_t(u64, TOKEN_MAX,
+ entry->tokens + now -
+ entry->last_time_ns);
+ entry->last_time_ns = now;
+ ret = tokens >= PACKET_COST;
+ entry->tokens = ret ? tokens - PACKET_COST : tokens;
+ spin_unlock(&entry->lock);
+ rcu_read_unlock();
+ return ret;
+ }
+ }
+ rcu_read_unlock();
+
+ if (atomic_inc_return(&total_entries) > max_entries)
+ goto err_oom;
+
+ entry = kmem_cache_alloc(entry_cache, GFP_KERNEL);
+ if (unlikely(!entry))
+ goto err_oom;
+
+ entry->net = net;
+ entry->ip = ip;
+ INIT_HLIST_NODE(&entry->hash);
+ spin_lock_init(&entry->lock);
+ entry->last_time_ns = ktime_get_coarse_boottime_ns();
+ entry->tokens = TOKEN_MAX - PACKET_COST;
+ spin_lock(&table_lock);
+ hlist_add_head_rcu(&entry->hash, bucket);
+ spin_unlock(&table_lock);
+ return true;
+
+err_oom:
+ atomic_dec(&total_entries);
+ return false;
+}
+
+int wg_ratelimiter_init(void)
+{
+ mutex_lock(&init_lock);
+ if (++init_refcnt != 1)
+ goto out;
+
+ entry_cache = KMEM_CACHE(ratelimiter_entry, 0);
+ if (!entry_cache)
+ goto err;
+
+ /* xt_hashlimit.c uses a slightly different algorithm for ratelimiting,
+ * but what it shares in common is that it uses a massive hashtable. So,
+ * we borrow their wisdom about good table sizes on different systems
+ * dependent on RAM. This calculation here comes from there.
+ */
+ table_size = (totalram_pages > (1U << 30) / PAGE_SIZE) ? 8192 :
+ max_t(unsigned long, 16, roundup_pow_of_two(
+ (totalram_pages << PAGE_SHIFT) /
+ (1U << 14) / sizeof(struct hlist_head)));
+ max_entries = table_size * 8;
+
+ table_v4 = kvzalloc(table_size * sizeof(*table_v4), GFP_KERNEL);
+ if (unlikely(!table_v4))
+ goto err_kmemcache;
+
+#if IS_ENABLED(CONFIG_IPV6)
+ table_v6 = kvzalloc(table_size * sizeof(*table_v6), GFP_KERNEL);
+ if (unlikely(!table_v6)) {
+ kvfree(table_v4);
+ goto err_kmemcache;
+ }
+#endif
+
+ queue_delayed_work(system_power_efficient_wq, &gc_work, HZ);
+ get_random_bytes(&key, sizeof(key));
+out:
+ mutex_unlock(&init_lock);
+ return 0;
+
+err_kmemcache:
+ kmem_cache_destroy(entry_cache);
+err:
+ --init_refcnt;
+ mutex_unlock(&init_lock);
+ return -ENOMEM;
+}
+
+void wg_ratelimiter_uninit(void)
+{
+ mutex_lock(&init_lock);
+ if (!init_refcnt || --init_refcnt)
+ goto out;
+
+ cancel_delayed_work_sync(&gc_work);
+ wg_ratelimiter_gc_entries(NULL);
+ rcu_barrier();
+ kvfree(table_v4);
+#if IS_ENABLED(CONFIG_IPV6)
+ kvfree(table_v6);
+#endif
+ kmem_cache_destroy(entry_cache);
+out:
+ mutex_unlock(&init_lock);
+}
+
+#include "selftest/ratelimiter.c"
diff --git a/drivers/net/wireguard/ratelimiter.h b/drivers/net/wireguard/ratelimiter.h
new file mode 100644
index 0000000..83067f7
--- /dev/null
+++ b/drivers/net/wireguard/ratelimiter.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#ifndef _WG_RATELIMITER_H
+#define _WG_RATELIMITER_H
+
+#include <linux/skbuff.h>
+
+int wg_ratelimiter_init(void);
+void wg_ratelimiter_uninit(void);
+bool wg_ratelimiter_allow(struct sk_buff *skb, struct net *net);
+
+#ifdef DEBUG
+bool wg_ratelimiter_selftest(void);
+#endif
+
+#endif /* _WG_RATELIMITER_H */
diff --git a/drivers/net/wireguard/receive.c b/drivers/net/wireguard/receive.c
new file mode 100644
index 0000000..2c9551e
--- /dev/null
+++ b/drivers/net/wireguard/receive.c
@@ -0,0 +1,590 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#include "queueing.h"
+#include "device.h"
+#include "peer.h"
+#include "timers.h"
+#include "messages.h"
+#include "cookie.h"
+#include "socket.h"
+
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/udp.h>
+#include <net/ip_tunnels.h>
+
+/* Must be called with bh disabled. */
+static void update_rx_stats(struct wg_peer *peer, size_t len)
+{
+ struct pcpu_sw_netstats *tstats =
+ get_cpu_ptr(peer->device->dev->tstats);
+
+ u64_stats_update_begin(&tstats->syncp);
+ ++tstats->rx_packets;
+ tstats->rx_bytes += len;
+ peer->rx_bytes += len;
+ u64_stats_update_end(&tstats->syncp);
+ put_cpu_ptr(tstats);
+}
+
+#define SKB_TYPE_LE32(skb) (((struct message_header *)(skb)->data)->type)
+
+static size_t validate_header_len(struct sk_buff *skb)
+{
+ if (unlikely(skb->len < sizeof(struct message_header)))
+ return 0;
+ if (SKB_TYPE_LE32(skb) == cpu_to_le32(MESSAGE_DATA) &&
+ skb->len >= MESSAGE_MINIMUM_LENGTH)
+ return sizeof(struct message_data);
+ if (SKB_TYPE_LE32(skb) == cpu_to_le32(MESSAGE_HANDSHAKE_INITIATION) &&
+ skb->len == sizeof(struct message_handshake_initiation))
+ return sizeof(struct message_handshake_initiation);
+ if (SKB_TYPE_LE32(skb) == cpu_to_le32(MESSAGE_HANDSHAKE_RESPONSE) &&
+ skb->len == sizeof(struct message_handshake_response))
+ return sizeof(struct message_handshake_response);
+ if (SKB_TYPE_LE32(skb) == cpu_to_le32(MESSAGE_HANDSHAKE_COOKIE) &&
+ skb->len == sizeof(struct message_handshake_cookie))
+ return sizeof(struct message_handshake_cookie);
+ return 0;
+}
+
+static int prepare_skb_header(struct sk_buff *skb, struct wg_device *wg)
+{
+ size_t data_offset, data_len, header_len;
+ struct udphdr *udp;
+
+ if (unlikely(!wg_check_packet_protocol(skb) ||
+ skb_transport_header(skb) < skb->head ||
+ (skb_transport_header(skb) + sizeof(struct udphdr)) >
+ skb_tail_pointer(skb)))
+ return -EINVAL; /* Bogus IP header */
+ udp = udp_hdr(skb);
+ data_offset = (u8 *)udp - skb->data;
+ if (unlikely(data_offset > U16_MAX ||
+ data_offset + sizeof(struct udphdr) > skb->len))
+ /* Packet has offset at impossible location or isn't big enough
+ * to have UDP fields.
+ */
+ return -EINVAL;
+ data_len = ntohs(udp->len);
+ if (unlikely(data_len < sizeof(struct udphdr) ||
+ data_len > skb->len - data_offset))
+ /* UDP packet is reporting too small of a size or lying about
+ * its size.
+ */
+ return -EINVAL;
+ data_len -= sizeof(struct udphdr);
+ data_offset = (u8 *)udp + sizeof(struct udphdr) - skb->data;
+ if (unlikely(!pskb_may_pull(skb,
+ data_offset + sizeof(struct message_header)) ||
+ pskb_trim(skb, data_len + data_offset) < 0))
+ return -EINVAL;
+ skb_pull(skb, data_offset);
+ if (unlikely(skb->len != data_len))
+ /* Final len does not agree with calculated len */
+ return -EINVAL;
+ header_len = validate_header_len(skb);
+ if (unlikely(!header_len))
+ return -EINVAL;
+ __skb_push(skb, data_offset);
+ if (unlikely(!pskb_may_pull(skb, data_offset + header_len)))
+ return -EINVAL;
+ __skb_pull(skb, data_offset);
+ return 0;
+}
+
+static void wg_receive_handshake_packet(struct wg_device *wg,
+ struct sk_buff *skb)
+{
+ enum cookie_mac_state mac_state;
+ struct wg_peer *peer = NULL;
+ /* This is global, so that our load calculation applies to the whole
+ * system. We don't care about races with it at all.
+ */
+ static u64 last_under_load;
+ bool packet_needs_cookie;
+ bool under_load;
+
+ if (SKB_TYPE_LE32(skb) == cpu_to_le32(MESSAGE_HANDSHAKE_COOKIE)) {
+ net_dbg_skb_ratelimited("%s: Receiving cookie response from %pISpfsc\n",
+ wg->dev->name, skb);
+ wg_cookie_message_consume(
+ (struct message_handshake_cookie *)skb->data, wg);
+ return;
+ }
+
+ under_load = skb_queue_len(&wg->incoming_handshakes) >=
+ MAX_QUEUED_INCOMING_HANDSHAKES / 8;
+ if (under_load) {
+ last_under_load = ktime_get_coarse_boottime_ns();
+ } else if (last_under_load) {
+ under_load = !wg_birthdate_has_expired(last_under_load, 1);
+ if (!under_load)
+ last_under_load = 0;
+ }
+ mac_state = wg_cookie_validate_packet(&wg->cookie_checker, skb,
+ under_load);
+ if ((under_load && mac_state == VALID_MAC_WITH_COOKIE) ||
+ (!under_load && mac_state == VALID_MAC_BUT_NO_COOKIE)) {
+ packet_needs_cookie = false;
+ } else if (under_load && mac_state == VALID_MAC_BUT_NO_COOKIE) {
+ packet_needs_cookie = true;
+ } else {
+ net_dbg_skb_ratelimited("%s: Invalid MAC of handshake, dropping packet from %pISpfsc\n",
+ wg->dev->name, skb);
+ return;
+ }
+
+ switch (SKB_TYPE_LE32(skb)) {
+ case cpu_to_le32(MESSAGE_HANDSHAKE_INITIATION): {
+ struct message_handshake_initiation *message =
+ (struct message_handshake_initiation *)skb->data;
+
+ if (packet_needs_cookie) {
+ wg_packet_send_handshake_cookie(wg, skb,
+ message->sender_index);
+ return;
+ }
+ peer = wg_noise_handshake_consume_initiation(message, wg);
+ if (unlikely(!peer)) {
+ net_dbg_skb_ratelimited("%s: Invalid handshake initiation from %pISpfsc\n",
+ wg->dev->name, skb);
+ return;
+ }
+ wg_socket_set_peer_endpoint_from_skb(peer, skb);
+ net_dbg_ratelimited("%s: Receiving handshake initiation from peer %llu (%pISpfsc)\n",
+ wg->dev->name, peer->internal_id,
+ &peer->endpoint.addr);
+ wg_packet_send_handshake_response(peer);
+ break;
+ }
+ case cpu_to_le32(MESSAGE_HANDSHAKE_RESPONSE): {
+ struct message_handshake_response *message =
+ (struct message_handshake_response *)skb->data;
+
+ if (packet_needs_cookie) {
+ wg_packet_send_handshake_cookie(wg, skb,
+ message->sender_index);
+ return;
+ }
+ peer = wg_noise_handshake_consume_response(message, wg);
+ if (unlikely(!peer)) {
+ net_dbg_skb_ratelimited("%s: Invalid handshake response from %pISpfsc\n",
+ wg->dev->name, skb);
+ return;
+ }
+ wg_socket_set_peer_endpoint_from_skb(peer, skb);
+ net_dbg_ratelimited("%s: Receiving handshake response from peer %llu (%pISpfsc)\n",
+ wg->dev->name, peer->internal_id,
+ &peer->endpoint.addr);
+ if (wg_noise_handshake_begin_session(&peer->handshake,
+ &peer->keypairs)) {
+ wg_timers_session_derived(peer);
+ wg_timers_handshake_complete(peer);
+ /* Calling this function will either send any existing
+ * packets in the queue and not send a keepalive, which
+ * is the best case, Or, if there's nothing in the
+ * queue, it will send a keepalive, in order to give
+ * immediate confirmation of the session.
+ */
+ wg_packet_send_keepalive(peer);
+ }
+ break;
+ }
+ }
+
+ if (unlikely(!peer)) {
+ WARN(1, "Somehow a wrong type of packet wound up in the handshake queue!\n");
+ return;
+ }
+
+ local_bh_disable();
+ update_rx_stats(peer, skb->len);
+ local_bh_enable();
+
+ wg_timers_any_authenticated_packet_received(peer);
+ wg_timers_any_authenticated_packet_traversal(peer);
+ wg_peer_put(peer);
+}
+
+void wg_packet_handshake_receive_worker(struct work_struct *work)
+{
+ struct wg_device *wg = container_of(work, struct multicore_worker,
+ work)->ptr;
+ struct sk_buff *skb;
+
+ while ((skb = skb_dequeue(&wg->incoming_handshakes)) != NULL) {
+ wg_receive_handshake_packet(wg, skb);
+ dev_kfree_skb(skb);
+ cond_resched();
+ }
+}
+
+static void keep_key_fresh(struct wg_peer *peer)
+{
+ struct noise_keypair *keypair;
+ bool send;
+
+ if (peer->sent_lastminute_handshake)
+ return;
+
+ rcu_read_lock_bh();
+ keypair = rcu_dereference_bh(peer->keypairs.current_keypair);
+ send = keypair && READ_ONCE(keypair->sending.is_valid) &&
+ keypair->i_am_the_initiator &&
+ wg_birthdate_has_expired(keypair->sending.birthdate,
+ REJECT_AFTER_TIME - KEEPALIVE_TIMEOUT - REKEY_TIMEOUT);
+ rcu_read_unlock_bh();
+
+ if (unlikely(send)) {
+ peer->sent_lastminute_handshake = true;
+ wg_packet_send_queued_handshake_initiation(peer, false);
+ }
+}
+
+static bool decrypt_packet(struct sk_buff *skb, struct noise_keypair *keypair)
+{
+ struct scatterlist sg[MAX_SKB_FRAGS + 8];
+ struct sk_buff *trailer;
+ unsigned int offset;
+ int num_frags;
+
+ if (unlikely(!keypair))
+ return false;
+
+ if (unlikely(!READ_ONCE(keypair->receiving.is_valid) ||
+ wg_birthdate_has_expired(keypair->receiving.birthdate, REJECT_AFTER_TIME) ||
+ keypair->receiving_counter.counter >= REJECT_AFTER_MESSAGES)) {
+ WRITE_ONCE(keypair->receiving.is_valid, false);
+ return false;
+ }
+
+ PACKET_CB(skb)->nonce =
+ le64_to_cpu(((struct message_data *)skb->data)->counter);
+
+ /* We ensure that the network header is part of the packet before we
+ * call skb_cow_data, so that there's no chance that data is removed
+ * from the skb, so that later we can extract the original endpoint.
+ */
+ offset = skb->data - skb_network_header(skb);
+ skb_push(skb, offset);
+ num_frags = skb_cow_data(skb, 0, &trailer);
+ offset += sizeof(struct message_data);
+ skb_pull(skb, offset);
+ if (unlikely(num_frags < 0 || num_frags > ARRAY_SIZE(sg)))
+ return false;
+
+ sg_init_table(sg, num_frags);
+ if (skb_to_sgvec(skb, sg, 0, skb->len) <= 0)
+ return false;
+
+ if (!chacha20poly1305_decrypt_sg_inplace(sg, skb->len, NULL, 0,
+ PACKET_CB(skb)->nonce,
+ keypair->receiving.key))
+ return false;
+
+ /* Another ugly situation of pushing and pulling the header so as to
+ * keep endpoint information intact.
+ */
+ skb_push(skb, offset);
+ if (pskb_trim(skb, skb->len - noise_encrypted_len(0)))
+ return false;
+ skb_pull(skb, offset);
+
+ return true;
+}
+
+/* This is RFC6479, a replay detection bitmap algorithm that avoids bitshifts */
+static bool counter_validate(struct noise_replay_counter *counter, u64 their_counter)
+{
+ unsigned long index, index_current, top, i;
+ bool ret = false;
+
+ spin_lock_bh(&counter->lock);
+
+ if (unlikely(counter->counter >= REJECT_AFTER_MESSAGES + 1 ||
+ their_counter >= REJECT_AFTER_MESSAGES))
+ goto out;
+
+ ++their_counter;
+
+ if (unlikely((COUNTER_WINDOW_SIZE + their_counter) <
+ counter->counter))
+ goto out;
+
+ index = their_counter >> ilog2(BITS_PER_LONG);
+
+ if (likely(their_counter > counter->counter)) {
+ index_current = counter->counter >> ilog2(BITS_PER_LONG);
+ top = min_t(unsigned long, index - index_current,
+ COUNTER_BITS_TOTAL / BITS_PER_LONG);
+ for (i = 1; i <= top; ++i)
+ counter->backtrack[(i + index_current) &
+ ((COUNTER_BITS_TOTAL / BITS_PER_LONG) - 1)] = 0;
+ counter->counter = their_counter;
+ }
+
+ index &= (COUNTER_BITS_TOTAL / BITS_PER_LONG) - 1;
+ ret = !test_and_set_bit(their_counter & (BITS_PER_LONG - 1),
+ &counter->backtrack[index]);
+
+out:
+ spin_unlock_bh(&counter->lock);
+ return ret;
+}
+
+#include "selftest/counter.c"
+
+static void wg_packet_consume_data_done(struct wg_peer *peer,
+ struct sk_buff *skb,
+ struct endpoint *endpoint)
+{
+ struct net_device *dev = peer->device->dev;
+ unsigned int len, len_before_trim;
+ struct wg_peer *routed_peer;
+
+ wg_socket_set_peer_endpoint(peer, endpoint);
+
+ if (unlikely(wg_noise_received_with_keypair(&peer->keypairs,
+ PACKET_CB(skb)->keypair))) {
+ wg_timers_handshake_complete(peer);
+ wg_packet_send_staged_packets(peer);
+ }
+
+ keep_key_fresh(peer);
+
+ wg_timers_any_authenticated_packet_received(peer);
+ wg_timers_any_authenticated_packet_traversal(peer);
+
+ /* A packet with length 0 is a keepalive packet */
+ if (unlikely(!skb->len)) {
+ update_rx_stats(peer, message_data_len(0));
+ net_dbg_ratelimited("%s: Receiving keepalive packet from peer %llu (%pISpfsc)\n",
+ dev->name, peer->internal_id,
+ &peer->endpoint.addr);
+ goto packet_processed;
+ }
+
+ wg_timers_data_received(peer);
+
+ if (unlikely(skb_network_header(skb) < skb->head))
+ goto dishonest_packet_size;
+ if (unlikely(!(pskb_network_may_pull(skb, sizeof(struct iphdr)) &&
+ (ip_hdr(skb)->version == 4 ||
+ (ip_hdr(skb)->version == 6 &&
+ pskb_network_may_pull(skb, sizeof(struct ipv6hdr)))))))
+ goto dishonest_packet_type;
+
+ skb->dev = dev;
+ /* We've already verified the Poly1305 auth tag, which means this packet
+ * was not modified in transit. We can therefore tell the networking
+ * stack that all checksums of every layer of encapsulation have already
+ * been checked "by the hardware" and therefore is unnecessary to check
+ * again in software.
+ */
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ skb->csum_level = ~0; /* All levels */
+ skb->protocol = ip_tunnel_parse_protocol(skb);
+ if (skb->protocol == htons(ETH_P_IP)) {
+ len = ntohs(ip_hdr(skb)->tot_len);
+ if (unlikely(len < sizeof(struct iphdr)))
+ goto dishonest_packet_size;
+ INET_ECN_decapsulate(skb, PACKET_CB(skb)->ds, ip_hdr(skb)->tos);
+ } else if (skb->protocol == htons(ETH_P_IPV6)) {
+ len = ntohs(ipv6_hdr(skb)->payload_len) +
+ sizeof(struct ipv6hdr);
+ INET_ECN_decapsulate(skb, PACKET_CB(skb)->ds, ipv6_get_dsfield(ipv6_hdr(skb)));
+ } else {
+ goto dishonest_packet_type;
+ }
+
+ if (unlikely(len > skb->len))
+ goto dishonest_packet_size;
+ len_before_trim = skb->len;
+ if (unlikely(pskb_trim(skb, len)))
+ goto packet_processed;
+
+ routed_peer = wg_allowedips_lookup_src(&peer->device->peer_allowedips,
+ skb);
+ wg_peer_put(routed_peer); /* We don't need the extra reference. */
+
+ if (unlikely(routed_peer != peer))
+ goto dishonest_packet_peer;
+
+ napi_gro_receive(&peer->napi, skb);
+ update_rx_stats(peer, message_data_len(len_before_trim));
+ return;
+
+dishonest_packet_peer:
+ net_dbg_skb_ratelimited("%s: Packet has unallowed src IP (%pISc) from peer %llu (%pISpfsc)\n",
+ dev->name, skb, peer->internal_id,
+ &peer->endpoint.addr);
+ ++dev->stats.rx_errors;
+ ++dev->stats.rx_frame_errors;
+ goto packet_processed;
+dishonest_packet_type:
+ net_dbg_ratelimited("%s: Packet is neither ipv4 nor ipv6 from peer %llu (%pISpfsc)\n",
+ dev->name, peer->internal_id, &peer->endpoint.addr);
+ ++dev->stats.rx_errors;
+ ++dev->stats.rx_frame_errors;
+ goto packet_processed;
+dishonest_packet_size:
+ net_dbg_ratelimited("%s: Packet has incorrect size from peer %llu (%pISpfsc)\n",
+ dev->name, peer->internal_id, &peer->endpoint.addr);
+ ++dev->stats.rx_errors;
+ ++dev->stats.rx_length_errors;
+ goto packet_processed;
+packet_processed:
+ dev_kfree_skb(skb);
+}
+
+int wg_packet_rx_poll(struct napi_struct *napi, int budget)
+{
+ struct wg_peer *peer = container_of(napi, struct wg_peer, napi);
+ struct crypt_queue *queue = &peer->rx_queue;
+ struct noise_keypair *keypair;
+ struct endpoint endpoint;
+ enum packet_state state;
+ struct sk_buff *skb;
+ int work_done = 0;
+ bool free;
+
+ if (unlikely(budget <= 0))
+ return 0;
+
+ while ((skb = __ptr_ring_peek(&queue->ring)) != NULL &&
+ (state = atomic_read_acquire(&PACKET_CB(skb)->state)) !=
+ PACKET_STATE_UNCRYPTED) {
+ __ptr_ring_discard_one(&queue->ring);
+ peer = PACKET_PEER(skb);
+ keypair = PACKET_CB(skb)->keypair;
+ free = true;
+
+ if (unlikely(state != PACKET_STATE_CRYPTED))
+ goto next;
+
+ if (unlikely(!counter_validate(&keypair->receiving_counter,
+ PACKET_CB(skb)->nonce))) {
+ net_dbg_ratelimited("%s: Packet has invalid nonce %llu (max %llu)\n",
+ peer->device->dev->name,
+ PACKET_CB(skb)->nonce,
+ keypair->receiving_counter.counter);
+ goto next;
+ }
+
+ if (unlikely(wg_socket_endpoint_from_skb(&endpoint, skb)))
+ goto next;
+
+ wg_reset_packet(skb, false);
+ wg_packet_consume_data_done(peer, skb, &endpoint);
+ free = false;
+
+next:
+ wg_noise_keypair_put(keypair, false);
+ wg_peer_put(peer);
+ if (unlikely(free))
+ dev_kfree_skb(skb);
+
+ if (++work_done >= budget)
+ break;
+ }
+
+ if (work_done < budget)
+ napi_complete_done(napi, work_done);
+
+ return work_done;
+}
+
+void wg_packet_decrypt_worker(struct work_struct *work)
+{
+ struct crypt_queue *queue = container_of(work, struct multicore_worker,
+ work)->ptr;
+ struct sk_buff *skb;
+
+ while ((skb = ptr_ring_consume_bh(&queue->ring)) != NULL) {
+ enum packet_state state =
+ likely(decrypt_packet(skb, PACKET_CB(skb)->keypair)) ?
+ PACKET_STATE_CRYPTED : PACKET_STATE_DEAD;
+ wg_queue_enqueue_per_peer_napi(skb, state);
+ if (need_resched())
+ cond_resched();
+ }
+}
+
+static void wg_packet_consume_data(struct wg_device *wg, struct sk_buff *skb)
+{
+ __le32 idx = ((struct message_data *)skb->data)->key_idx;
+ struct wg_peer *peer = NULL;
+ int ret;
+
+ rcu_read_lock_bh();
+ PACKET_CB(skb)->keypair =
+ (struct noise_keypair *)wg_index_hashtable_lookup(
+ wg->index_hashtable, INDEX_HASHTABLE_KEYPAIR, idx,
+ &peer);
+ if (unlikely(!wg_noise_keypair_get(PACKET_CB(skb)->keypair)))
+ goto err_keypair;
+
+ if (unlikely(READ_ONCE(peer->is_dead)))
+ goto err;
+
+ ret = wg_queue_enqueue_per_device_and_peer(&wg->decrypt_queue,
+ &peer->rx_queue, skb,
+ wg->packet_crypt_wq,
+ &wg->decrypt_queue.last_cpu);
+ if (unlikely(ret == -EPIPE))
+ wg_queue_enqueue_per_peer_napi(skb, PACKET_STATE_DEAD);
+ if (likely(!ret || ret == -EPIPE)) {
+ rcu_read_unlock_bh();
+ return;
+ }
+err:
+ wg_noise_keypair_put(PACKET_CB(skb)->keypair, false);
+err_keypair:
+ rcu_read_unlock_bh();
+ wg_peer_put(peer);
+ dev_kfree_skb(skb);
+}
+
+void wg_packet_receive(struct wg_device *wg, struct sk_buff *skb)
+{
+ if (unlikely(prepare_skb_header(skb, wg) < 0))
+ goto err;
+ switch (SKB_TYPE_LE32(skb)) {
+ case cpu_to_le32(MESSAGE_HANDSHAKE_INITIATION):
+ case cpu_to_le32(MESSAGE_HANDSHAKE_RESPONSE):
+ case cpu_to_le32(MESSAGE_HANDSHAKE_COOKIE): {
+ int cpu;
+
+ if (skb_queue_len(&wg->incoming_handshakes) >
+ MAX_QUEUED_INCOMING_HANDSHAKES ||
+ unlikely(!rng_is_initialized())) {
+ net_dbg_skb_ratelimited("%s: Dropping handshake packet from %pISpfsc\n",
+ wg->dev->name, skb);
+ goto err;
+ }
+ skb_queue_tail(&wg->incoming_handshakes, skb);
+ /* Queues up a call to packet_process_queued_handshake_
+ * packets(skb):
+ */
+ cpu = wg_cpumask_next_online(&wg->incoming_handshake_cpu);
+ queue_work_on(cpu, wg->handshake_receive_wq,
+ &per_cpu_ptr(wg->incoming_handshakes_worker, cpu)->work);
+ break;
+ }
+ case cpu_to_le32(MESSAGE_DATA):
+ PACKET_CB(skb)->ds = ip_tunnel_get_dsfield(ip_hdr(skb), skb);
+ wg_packet_consume_data(wg, skb);
+ break;
+ default:
+ WARN(1, "Non-exhaustive parsing of packet header lead to unknown packet type!\n");
+ goto err;
+ }
+ return;
+
+err:
+ dev_kfree_skb(skb);
+}
diff --git a/drivers/net/wireguard/selftest/allowedips.c b/drivers/net/wireguard/selftest/allowedips.c
new file mode 100644
index 0000000..846db14
--- /dev/null
+++ b/drivers/net/wireguard/selftest/allowedips.c
@@ -0,0 +1,683 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ *
+ * This contains some basic static unit tests for the allowedips data structure.
+ * It also has two additional modes that are disabled and meant to be used by
+ * folks directly playing with this file. If you define the macro
+ * DEBUG_PRINT_TRIE_GRAPHVIZ to be 1, then every time there's a full tree in
+ * memory, it will be printed out as KERN_DEBUG in a format that can be passed
+ * to graphviz (the dot command) to visualize it. If you define the macro
+ * DEBUG_RANDOM_TRIE to be 1, then there will be an extremely costly set of
+ * randomized tests done against a trivial implementation, which may take
+ * upwards of a half-hour to complete. There's no set of users who should be
+ * enabling these, and the only developers that should go anywhere near these
+ * nobs are the ones who are reading this comment.
+ */
+
+#ifdef DEBUG
+
+#include <linux/siphash.h>
+
+static __init void swap_endian_and_apply_cidr(u8 *dst, const u8 *src, u8 bits,
+ u8 cidr)
+{
+ swap_endian(dst, src, bits);
+ memset(dst + (cidr + 7) / 8, 0, bits / 8 - (cidr + 7) / 8);
+ if (cidr)
+ dst[(cidr + 7) / 8 - 1] &= ~0U << ((8 - (cidr % 8)) % 8);
+}
+
+static __init void print_node(struct allowedips_node *node, u8 bits)
+{
+ char *fmt_connection = KERN_DEBUG "\t\"%p/%d\" -> \"%p/%d\";\n";
+ char *fmt_declaration = KERN_DEBUG
+ "\t\"%p/%d\"[style=%s, color=\"#%06x\"];\n";
+ char *style = "dotted";
+ u8 ip1[16], ip2[16];
+ u32 color = 0;
+
+ if (bits == 32) {
+ fmt_connection = KERN_DEBUG "\t\"%pI4/%d\" -> \"%pI4/%d\";\n";
+ fmt_declaration = KERN_DEBUG
+ "\t\"%pI4/%d\"[style=%s, color=\"#%06x\"];\n";
+ } else if (bits == 128) {
+ fmt_connection = KERN_DEBUG "\t\"%pI6/%d\" -> \"%pI6/%d\";\n";
+ fmt_declaration = KERN_DEBUG
+ "\t\"%pI6/%d\"[style=%s, color=\"#%06x\"];\n";
+ }
+ if (node->peer) {
+ hsiphash_key_t key = { { 0 } };
+
+ memcpy(&key, &node->peer, sizeof(node->peer));
+ color = hsiphash_1u32(0xdeadbeef, &key) % 200 << 16 |
+ hsiphash_1u32(0xbabecafe, &key) % 200 << 8 |
+ hsiphash_1u32(0xabad1dea, &key) % 200;
+ style = "bold";
+ }
+ swap_endian_and_apply_cidr(ip1, node->bits, bits, node->cidr);
+ printk(fmt_declaration, ip1, node->cidr, style, color);
+ if (node->bit[0]) {
+ swap_endian_and_apply_cidr(ip2,
+ rcu_dereference_raw(node->bit[0])->bits, bits,
+ node->cidr);
+ printk(fmt_connection, ip1, node->cidr, ip2,
+ rcu_dereference_raw(node->bit[0])->cidr);
+ print_node(rcu_dereference_raw(node->bit[0]), bits);
+ }
+ if (node->bit[1]) {
+ swap_endian_and_apply_cidr(ip2,
+ rcu_dereference_raw(node->bit[1])->bits,
+ bits, node->cidr);
+ printk(fmt_connection, ip1, node->cidr, ip2,
+ rcu_dereference_raw(node->bit[1])->cidr);
+ print_node(rcu_dereference_raw(node->bit[1]), bits);
+ }
+}
+
+static __init void print_tree(struct allowedips_node __rcu *top, u8 bits)
+{
+ printk(KERN_DEBUG "digraph trie {\n");
+ print_node(rcu_dereference_raw(top), bits);
+ printk(KERN_DEBUG "}\n");
+}
+
+enum {
+ NUM_PEERS = 2000,
+ NUM_RAND_ROUTES = 400,
+ NUM_MUTATED_ROUTES = 100,
+ NUM_QUERIES = NUM_RAND_ROUTES * NUM_MUTATED_ROUTES * 30
+};
+
+struct horrible_allowedips {
+ struct hlist_head head;
+};
+
+struct horrible_allowedips_node {
+ struct hlist_node table;
+ union nf_inet_addr ip;
+ union nf_inet_addr mask;
+ u8 ip_version;
+ void *value;
+};
+
+static __init void horrible_allowedips_init(struct horrible_allowedips *table)
+{
+ INIT_HLIST_HEAD(&table->head);
+}
+
+static __init void horrible_allowedips_free(struct horrible_allowedips *table)
+{
+ struct horrible_allowedips_node *node;
+ struct hlist_node *h;
+
+ hlist_for_each_entry_safe(node, h, &table->head, table) {
+ hlist_del(&node->table);
+ kfree(node);
+ }
+}
+
+static __init inline union nf_inet_addr horrible_cidr_to_mask(u8 cidr)
+{
+ union nf_inet_addr mask;
+
+ memset(&mask, 0x00, 128 / 8);
+ memset(&mask, 0xff, cidr / 8);
+ if (cidr % 32)
+ mask.all[cidr / 32] = (__force u32)htonl(
+ (0xFFFFFFFFUL << (32 - (cidr % 32))) & 0xFFFFFFFFUL);
+ return mask;
+}
+
+static __init inline u8 horrible_mask_to_cidr(union nf_inet_addr subnet)
+{
+ return hweight32(subnet.all[0]) + hweight32(subnet.all[1]) +
+ hweight32(subnet.all[2]) + hweight32(subnet.all[3]);
+}
+
+static __init inline void
+horrible_mask_self(struct horrible_allowedips_node *node)
+{
+ if (node->ip_version == 4) {
+ node->ip.ip &= node->mask.ip;
+ } else if (node->ip_version == 6) {
+ node->ip.ip6[0] &= node->mask.ip6[0];
+ node->ip.ip6[1] &= node->mask.ip6[1];
+ node->ip.ip6[2] &= node->mask.ip6[2];
+ node->ip.ip6[3] &= node->mask.ip6[3];
+ }
+}
+
+static __init inline bool
+horrible_match_v4(const struct horrible_allowedips_node *node,
+ struct in_addr *ip)
+{
+ return (ip->s_addr & node->mask.ip) == node->ip.ip;
+}
+
+static __init inline bool
+horrible_match_v6(const struct horrible_allowedips_node *node,
+ struct in6_addr *ip)
+{
+ return (ip->in6_u.u6_addr32[0] & node->mask.ip6[0]) ==
+ node->ip.ip6[0] &&
+ (ip->in6_u.u6_addr32[1] & node->mask.ip6[1]) ==
+ node->ip.ip6[1] &&
+ (ip->in6_u.u6_addr32[2] & node->mask.ip6[2]) ==
+ node->ip.ip6[2] &&
+ (ip->in6_u.u6_addr32[3] & node->mask.ip6[3]) == node->ip.ip6[3];
+}
+
+static __init void
+horrible_insert_ordered(struct horrible_allowedips *table,
+ struct horrible_allowedips_node *node)
+{
+ struct horrible_allowedips_node *other = NULL, *where = NULL;
+ u8 my_cidr = horrible_mask_to_cidr(node->mask);
+
+ hlist_for_each_entry(other, &table->head, table) {
+ if (!memcmp(&other->mask, &node->mask,
+ sizeof(union nf_inet_addr)) &&
+ !memcmp(&other->ip, &node->ip,
+ sizeof(union nf_inet_addr)) &&
+ other->ip_version == node->ip_version) {
+ other->value = node->value;
+ kfree(node);
+ return;
+ }
+ where = other;
+ if (horrible_mask_to_cidr(other->mask) <= my_cidr)
+ break;
+ }
+ if (!other && !where)
+ hlist_add_head(&node->table, &table->head);
+ else if (!other)
+ hlist_add_behind(&node->table, &where->table);
+ else
+ hlist_add_before(&node->table, &where->table);
+}
+
+static __init int
+horrible_allowedips_insert_v4(struct horrible_allowedips *table,
+ struct in_addr *ip, u8 cidr, void *value)
+{
+ struct horrible_allowedips_node *node = kzalloc(sizeof(*node),
+ GFP_KERNEL);
+
+ if (unlikely(!node))
+ return -ENOMEM;
+ node->ip.in = *ip;
+ node->mask = horrible_cidr_to_mask(cidr);
+ node->ip_version = 4;
+ node->value = value;
+ horrible_mask_self(node);
+ horrible_insert_ordered(table, node);
+ return 0;
+}
+
+static __init int
+horrible_allowedips_insert_v6(struct horrible_allowedips *table,
+ struct in6_addr *ip, u8 cidr, void *value)
+{
+ struct horrible_allowedips_node *node = kzalloc(sizeof(*node),
+ GFP_KERNEL);
+
+ if (unlikely(!node))
+ return -ENOMEM;
+ node->ip.in6 = *ip;
+ node->mask = horrible_cidr_to_mask(cidr);
+ node->ip_version = 6;
+ node->value = value;
+ horrible_mask_self(node);
+ horrible_insert_ordered(table, node);
+ return 0;
+}
+
+static __init void *
+horrible_allowedips_lookup_v4(struct horrible_allowedips *table,
+ struct in_addr *ip)
+{
+ struct horrible_allowedips_node *node;
+ void *ret = NULL;
+
+ hlist_for_each_entry(node, &table->head, table) {
+ if (node->ip_version != 4)
+ continue;
+ if (horrible_match_v4(node, ip)) {
+ ret = node->value;
+ break;
+ }
+ }
+ return ret;
+}
+
+static __init void *
+horrible_allowedips_lookup_v6(struct horrible_allowedips *table,
+ struct in6_addr *ip)
+{
+ struct horrible_allowedips_node *node;
+ void *ret = NULL;
+
+ hlist_for_each_entry(node, &table->head, table) {
+ if (node->ip_version != 6)
+ continue;
+ if (horrible_match_v6(node, ip)) {
+ ret = node->value;
+ break;
+ }
+ }
+ return ret;
+}
+
+static __init bool randomized_test(void)
+{
+ unsigned int i, j, k, mutate_amount, cidr;
+ u8 ip[16], mutate_mask[16], mutated[16];
+ struct wg_peer **peers, *peer;
+ struct horrible_allowedips h;
+ DEFINE_MUTEX(mutex);
+ struct allowedips t;
+ bool ret = false;
+
+ mutex_init(&mutex);
+
+ wg_allowedips_init(&t);
+ horrible_allowedips_init(&h);
+
+ peers = kcalloc(NUM_PEERS, sizeof(*peers), GFP_KERNEL);
+ if (unlikely(!peers)) {
+ pr_err("allowedips random self-test malloc: FAIL\n");
+ goto free;
+ }
+ for (i = 0; i < NUM_PEERS; ++i) {
+ peers[i] = kzalloc(sizeof(*peers[i]), GFP_KERNEL);
+ if (unlikely(!peers[i])) {
+ pr_err("allowedips random self-test malloc: FAIL\n");
+ goto free;
+ }
+ kref_init(&peers[i]->refcount);
+ }
+
+ mutex_lock(&mutex);
+
+ for (i = 0; i < NUM_RAND_ROUTES; ++i) {
+ prandom_bytes(ip, 4);
+ cidr = prandom_u32_max(32) + 1;
+ peer = peers[prandom_u32_max(NUM_PEERS)];
+ if (wg_allowedips_insert_v4(&t, (struct in_addr *)ip, cidr,
+ peer, &mutex) < 0) {
+ pr_err("allowedips random self-test malloc: FAIL\n");
+ goto free_locked;
+ }
+ if (horrible_allowedips_insert_v4(&h, (struct in_addr *)ip,
+ cidr, peer) < 0) {
+ pr_err("allowedips random self-test malloc: FAIL\n");
+ goto free_locked;
+ }
+ for (j = 0; j < NUM_MUTATED_ROUTES; ++j) {
+ memcpy(mutated, ip, 4);
+ prandom_bytes(mutate_mask, 4);
+ mutate_amount = prandom_u32_max(32);
+ for (k = 0; k < mutate_amount / 8; ++k)
+ mutate_mask[k] = 0xff;
+ mutate_mask[k] = 0xff
+ << ((8 - (mutate_amount % 8)) % 8);
+ for (; k < 4; ++k)
+ mutate_mask[k] = 0;
+ for (k = 0; k < 4; ++k)
+ mutated[k] = (mutated[k] & mutate_mask[k]) |
+ (~mutate_mask[k] &
+ prandom_u32_max(256));
+ cidr = prandom_u32_max(32) + 1;
+ peer = peers[prandom_u32_max(NUM_PEERS)];
+ if (wg_allowedips_insert_v4(&t,
+ (struct in_addr *)mutated,
+ cidr, peer, &mutex) < 0) {
+ pr_err("allowedips random malloc: FAIL\n");
+ goto free_locked;
+ }
+ if (horrible_allowedips_insert_v4(&h,
+ (struct in_addr *)mutated, cidr, peer)) {
+ pr_err("allowedips random self-test malloc: FAIL\n");
+ goto free_locked;
+ }
+ }
+ }
+
+ for (i = 0; i < NUM_RAND_ROUTES; ++i) {
+ prandom_bytes(ip, 16);
+ cidr = prandom_u32_max(128) + 1;
+ peer = peers[prandom_u32_max(NUM_PEERS)];
+ if (wg_allowedips_insert_v6(&t, (struct in6_addr *)ip, cidr,
+ peer, &mutex) < 0) {
+ pr_err("allowedips random self-test malloc: FAIL\n");
+ goto free_locked;
+ }
+ if (horrible_allowedips_insert_v6(&h, (struct in6_addr *)ip,
+ cidr, peer) < 0) {
+ pr_err("allowedips random self-test malloc: FAIL\n");
+ goto free_locked;
+ }
+ for (j = 0; j < NUM_MUTATED_ROUTES; ++j) {
+ memcpy(mutated, ip, 16);
+ prandom_bytes(mutate_mask, 16);
+ mutate_amount = prandom_u32_max(128);
+ for (k = 0; k < mutate_amount / 8; ++k)
+ mutate_mask[k] = 0xff;
+ mutate_mask[k] = 0xff
+ << ((8 - (mutate_amount % 8)) % 8);
+ for (; k < 4; ++k)
+ mutate_mask[k] = 0;
+ for (k = 0; k < 4; ++k)
+ mutated[k] = (mutated[k] & mutate_mask[k]) |
+ (~mutate_mask[k] &
+ prandom_u32_max(256));
+ cidr = prandom_u32_max(128) + 1;
+ peer = peers[prandom_u32_max(NUM_PEERS)];
+ if (wg_allowedips_insert_v6(&t,
+ (struct in6_addr *)mutated,
+ cidr, peer, &mutex) < 0) {
+ pr_err("allowedips random self-test malloc: FAIL\n");
+ goto free_locked;
+ }
+ if (horrible_allowedips_insert_v6(
+ &h, (struct in6_addr *)mutated, cidr,
+ peer)) {
+ pr_err("allowedips random self-test malloc: FAIL\n");
+ goto free_locked;
+ }
+ }
+ }
+
+ mutex_unlock(&mutex);
+
+ if (IS_ENABLED(DEBUG_PRINT_TRIE_GRAPHVIZ)) {
+ print_tree(t.root4, 32);
+ print_tree(t.root6, 128);
+ }
+
+ for (i = 0; i < NUM_QUERIES; ++i) {
+ prandom_bytes(ip, 4);
+ if (lookup(t.root4, 32, ip) !=
+ horrible_allowedips_lookup_v4(&h, (struct in_addr *)ip)) {
+ pr_err("allowedips random self-test: FAIL\n");
+ goto free;
+ }
+ }
+
+ for (i = 0; i < NUM_QUERIES; ++i) {
+ prandom_bytes(ip, 16);
+ if (lookup(t.root6, 128, ip) !=
+ horrible_allowedips_lookup_v6(&h, (struct in6_addr *)ip)) {
+ pr_err("allowedips random self-test: FAIL\n");
+ goto free;
+ }
+ }
+ ret = true;
+
+free:
+ mutex_lock(&mutex);
+free_locked:
+ wg_allowedips_free(&t, &mutex);
+ mutex_unlock(&mutex);
+ horrible_allowedips_free(&h);
+ if (peers) {
+ for (i = 0; i < NUM_PEERS; ++i)
+ kfree(peers[i]);
+ }
+ kfree(peers);
+ return ret;
+}
+
+static __init inline struct in_addr *ip4(u8 a, u8 b, u8 c, u8 d)
+{
+ static struct in_addr ip;
+ u8 *split = (u8 *)&ip;
+
+ split[0] = a;
+ split[1] = b;
+ split[2] = c;
+ split[3] = d;
+ return &ip;
+}
+
+static __init inline struct in6_addr *ip6(u32 a, u32 b, u32 c, u32 d)
+{
+ static struct in6_addr ip;
+ __be32 *split = (__be32 *)&ip;
+
+ split[0] = cpu_to_be32(a);
+ split[1] = cpu_to_be32(b);
+ split[2] = cpu_to_be32(c);
+ split[3] = cpu_to_be32(d);
+ return &ip;
+}
+
+static __init struct wg_peer *init_peer(void)
+{
+ struct wg_peer *peer = kzalloc(sizeof(*peer), GFP_KERNEL);
+
+ if (!peer)
+ return NULL;
+ kref_init(&peer->refcount);
+ INIT_LIST_HEAD(&peer->allowedips_list);
+ return peer;
+}
+
+#define insert(version, mem, ipa, ipb, ipc, ipd, cidr) \
+ wg_allowedips_insert_v##version(&t, ip##version(ipa, ipb, ipc, ipd), \
+ cidr, mem, &mutex)
+
+#define maybe_fail() do { \
+ ++i; \
+ if (!_s) { \
+ pr_info("allowedips self-test %zu: FAIL\n", i); \
+ success = false; \
+ } \
+ } while (0)
+
+#define test(version, mem, ipa, ipb, ipc, ipd) do { \
+ bool _s = lookup(t.root##version, (version) == 4 ? 32 : 128, \
+ ip##version(ipa, ipb, ipc, ipd)) == (mem); \
+ maybe_fail(); \
+ } while (0)
+
+#define test_negative(version, mem, ipa, ipb, ipc, ipd) do { \
+ bool _s = lookup(t.root##version, (version) == 4 ? 32 : 128, \
+ ip##version(ipa, ipb, ipc, ipd)) != (mem); \
+ maybe_fail(); \
+ } while (0)
+
+#define test_boolean(cond) do { \
+ bool _s = (cond); \
+ maybe_fail(); \
+ } while (0)
+
+bool __init wg_allowedips_selftest(void)
+{
+ bool found_a = false, found_b = false, found_c = false, found_d = false,
+ found_e = false, found_other = false;
+ struct wg_peer *a = init_peer(), *b = init_peer(), *c = init_peer(),
+ *d = init_peer(), *e = init_peer(), *f = init_peer(),
+ *g = init_peer(), *h = init_peer();
+ struct allowedips_node *iter_node;
+ bool success = false;
+ struct allowedips t;
+ DEFINE_MUTEX(mutex);
+ struct in6_addr ip;
+ size_t i = 0, count = 0;
+ __be64 part;
+
+ mutex_init(&mutex);
+ mutex_lock(&mutex);
+ wg_allowedips_init(&t);
+
+ if (!a || !b || !c || !d || !e || !f || !g || !h) {
+ pr_err("allowedips self-test malloc: FAIL\n");
+ goto free;
+ }
+
+ insert(4, a, 192, 168, 4, 0, 24);
+ insert(4, b, 192, 168, 4, 4, 32);
+ insert(4, c, 192, 168, 0, 0, 16);
+ insert(4, d, 192, 95, 5, 64, 27);
+ /* replaces previous entry, and maskself is required */
+ insert(4, c, 192, 95, 5, 65, 27);
+ insert(6, d, 0x26075300, 0x60006b00, 0, 0xc05f0543, 128);
+ insert(6, c, 0x26075300, 0x60006b00, 0, 0, 64);
+ insert(4, e, 0, 0, 0, 0, 0);
+ insert(6, e, 0, 0, 0, 0, 0);
+ /* replaces previous entry */
+ insert(6, f, 0, 0, 0, 0, 0);
+ insert(6, g, 0x24046800, 0, 0, 0, 32);
+ /* maskself is required */
+ insert(6, h, 0x24046800, 0x40040800, 0xdeadbeef, 0xdeadbeef, 64);
+ insert(6, a, 0x24046800, 0x40040800, 0xdeadbeef, 0xdeadbeef, 128);
+ insert(6, c, 0x24446800, 0x40e40800, 0xdeaebeef, 0xdefbeef, 128);
+ insert(6, b, 0x24446800, 0xf0e40800, 0xeeaebeef, 0, 98);
+ insert(4, g, 64, 15, 112, 0, 20);
+ /* maskself is required */
+ insert(4, h, 64, 15, 123, 211, 25);
+ insert(4, a, 10, 0, 0, 0, 25);
+ insert(4, b, 10, 0, 0, 128, 25);
+ insert(4, a, 10, 1, 0, 0, 30);
+ insert(4, b, 10, 1, 0, 4, 30);
+ insert(4, c, 10, 1, 0, 8, 29);
+ insert(4, d, 10, 1, 0, 16, 29);
+
+ if (IS_ENABLED(DEBUG_PRINT_TRIE_GRAPHVIZ)) {
+ print_tree(t.root4, 32);
+ print_tree(t.root6, 128);
+ }
+
+ success = true;
+
+ test(4, a, 192, 168, 4, 20);
+ test(4, a, 192, 168, 4, 0);
+ test(4, b, 192, 168, 4, 4);
+ test(4, c, 192, 168, 200, 182);
+ test(4, c, 192, 95, 5, 68);
+ test(4, e, 192, 95, 5, 96);
+ test(6, d, 0x26075300, 0x60006b00, 0, 0xc05f0543);
+ test(6, c, 0x26075300, 0x60006b00, 0, 0xc02e01ee);
+ test(6, f, 0x26075300, 0x60006b01, 0, 0);
+ test(6, g, 0x24046800, 0x40040806, 0, 0x1006);
+ test(6, g, 0x24046800, 0x40040806, 0x1234, 0x5678);
+ test(6, f, 0x240467ff, 0x40040806, 0x1234, 0x5678);
+ test(6, f, 0x24046801, 0x40040806, 0x1234, 0x5678);
+ test(6, h, 0x24046800, 0x40040800, 0x1234, 0x5678);
+ test(6, h, 0x24046800, 0x40040800, 0, 0);
+ test(6, h, 0x24046800, 0x40040800, 0x10101010, 0x10101010);
+ test(6, a, 0x24046800, 0x40040800, 0xdeadbeef, 0xdeadbeef);
+ test(4, g, 64, 15, 116, 26);
+ test(4, g, 64, 15, 127, 3);
+ test(4, g, 64, 15, 123, 1);
+ test(4, h, 64, 15, 123, 128);
+ test(4, h, 64, 15, 123, 129);
+ test(4, a, 10, 0, 0, 52);
+ test(4, b, 10, 0, 0, 220);
+ test(4, a, 10, 1, 0, 2);
+ test(4, b, 10, 1, 0, 6);
+ test(4, c, 10, 1, 0, 10);
+ test(4, d, 10, 1, 0, 20);
+
+ insert(4, a, 1, 0, 0, 0, 32);
+ insert(4, a, 64, 0, 0, 0, 32);
+ insert(4, a, 128, 0, 0, 0, 32);
+ insert(4, a, 192, 0, 0, 0, 32);
+ insert(4, a, 255, 0, 0, 0, 32);
+ wg_allowedips_remove_by_peer(&t, a, &mutex);
+ test_negative(4, a, 1, 0, 0, 0);
+ test_negative(4, a, 64, 0, 0, 0);
+ test_negative(4, a, 128, 0, 0, 0);
+ test_negative(4, a, 192, 0, 0, 0);
+ test_negative(4, a, 255, 0, 0, 0);
+
+ wg_allowedips_free(&t, &mutex);
+ wg_allowedips_init(&t);
+ insert(4, a, 192, 168, 0, 0, 16);
+ insert(4, a, 192, 168, 0, 0, 24);
+ wg_allowedips_remove_by_peer(&t, a, &mutex);
+ test_negative(4, a, 192, 168, 0, 1);
+
+ /* These will hit the WARN_ON(len >= 128) in free_node if something
+ * goes wrong.
+ */
+ for (i = 0; i < 128; ++i) {
+ part = cpu_to_be64(~(1LLU << (i % 64)));
+ memset(&ip, 0xff, 16);
+ memcpy((u8 *)&ip + (i < 64) * 8, &part, 8);
+ wg_allowedips_insert_v6(&t, &ip, 128, a, &mutex);
+ }
+
+ wg_allowedips_free(&t, &mutex);
+
+ wg_allowedips_init(&t);
+ insert(4, a, 192, 95, 5, 93, 27);
+ insert(6, a, 0x26075300, 0x60006b00, 0, 0xc05f0543, 128);
+ insert(4, a, 10, 1, 0, 20, 29);
+ insert(6, a, 0x26075300, 0x6d8a6bf8, 0xdab1f1df, 0xc05f1523, 83);
+ insert(6, a, 0x26075300, 0x6d8a6bf8, 0xdab1f1df, 0xc05f1523, 21);
+ list_for_each_entry(iter_node, &a->allowedips_list, peer_list) {
+ u8 cidr, ip[16] __aligned(__alignof(u64));
+ int family = wg_allowedips_read_node(iter_node, ip, &cidr);
+
+ count++;
+
+ if (cidr == 27 && family == AF_INET &&
+ !memcmp(ip, ip4(192, 95, 5, 64), sizeof(struct in_addr)))
+ found_a = true;
+ else if (cidr == 128 && family == AF_INET6 &&
+ !memcmp(ip, ip6(0x26075300, 0x60006b00, 0, 0xc05f0543),
+ sizeof(struct in6_addr)))
+ found_b = true;
+ else if (cidr == 29 && family == AF_INET &&
+ !memcmp(ip, ip4(10, 1, 0, 16), sizeof(struct in_addr)))
+ found_c = true;
+ else if (cidr == 83 && family == AF_INET6 &&
+ !memcmp(ip, ip6(0x26075300, 0x6d8a6bf8, 0xdab1e000, 0),
+ sizeof(struct in6_addr)))
+ found_d = true;
+ else if (cidr == 21 && family == AF_INET6 &&
+ !memcmp(ip, ip6(0x26075000, 0, 0, 0),
+ sizeof(struct in6_addr)))
+ found_e = true;
+ else
+ found_other = true;
+ }
+ test_boolean(count == 5);
+ test_boolean(found_a);
+ test_boolean(found_b);
+ test_boolean(found_c);
+ test_boolean(found_d);
+ test_boolean(found_e);
+ test_boolean(!found_other);
+
+ if (IS_ENABLED(DEBUG_RANDOM_TRIE) && success)
+ success = randomized_test();
+
+ if (success)
+ pr_info("allowedips self-tests: pass\n");
+
+free:
+ wg_allowedips_free(&t, &mutex);
+ kfree(a);
+ kfree(b);
+ kfree(c);
+ kfree(d);
+ kfree(e);
+ kfree(f);
+ kfree(g);
+ kfree(h);
+ mutex_unlock(&mutex);
+
+ return success;
+}
+
+#undef test_negative
+#undef test
+#undef remove
+#undef insert
+#undef init_peer
+
+#endif
diff --git a/drivers/net/wireguard/selftest/counter.c b/drivers/net/wireguard/selftest/counter.c
new file mode 100644
index 0000000..ec3c156
--- /dev/null
+++ b/drivers/net/wireguard/selftest/counter.c
@@ -0,0 +1,111 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#ifdef DEBUG
+bool __init wg_packet_counter_selftest(void)
+{
+ struct noise_replay_counter *counter;
+ unsigned int test_num = 0, i;
+ bool success = true;
+
+ counter = kmalloc(sizeof(*counter), GFP_KERNEL);
+ if (unlikely(!counter)) {
+ pr_err("nonce counter self-test malloc: FAIL\n");
+ return false;
+ }
+
+#define T_INIT do { \
+ memset(counter, 0, sizeof(*counter)); \
+ spin_lock_init(&counter->lock); \
+ } while (0)
+#define T_LIM (COUNTER_WINDOW_SIZE + 1)
+#define T(n, v) do { \
+ ++test_num; \
+ if (counter_validate(counter, n) != (v)) { \
+ pr_err("nonce counter self-test %u: FAIL\n", \
+ test_num); \
+ success = false; \
+ } \
+ } while (0)
+
+ T_INIT;
+ /* 1 */ T(0, true);
+ /* 2 */ T(1, true);
+ /* 3 */ T(1, false);
+ /* 4 */ T(9, true);
+ /* 5 */ T(8, true);
+ /* 6 */ T(7, true);
+ /* 7 */ T(7, false);
+ /* 8 */ T(T_LIM, true);
+ /* 9 */ T(T_LIM - 1, true);
+ /* 10 */ T(T_LIM - 1, false);
+ /* 11 */ T(T_LIM - 2, true);
+ /* 12 */ T(2, true);
+ /* 13 */ T(2, false);
+ /* 14 */ T(T_LIM + 16, true);
+ /* 15 */ T(3, false);
+ /* 16 */ T(T_LIM + 16, false);
+ /* 17 */ T(T_LIM * 4, true);
+ /* 18 */ T(T_LIM * 4 - (T_LIM - 1), true);
+ /* 19 */ T(10, false);
+ /* 20 */ T(T_LIM * 4 - T_LIM, false);
+ /* 21 */ T(T_LIM * 4 - (T_LIM + 1), false);
+ /* 22 */ T(T_LIM * 4 - (T_LIM - 2), true);
+ /* 23 */ T(T_LIM * 4 + 1 - T_LIM, false);
+ /* 24 */ T(0, false);
+ /* 25 */ T(REJECT_AFTER_MESSAGES, false);
+ /* 26 */ T(REJECT_AFTER_MESSAGES - 1, true);
+ /* 27 */ T(REJECT_AFTER_MESSAGES, false);
+ /* 28 */ T(REJECT_AFTER_MESSAGES - 1, false);
+ /* 29 */ T(REJECT_AFTER_MESSAGES - 2, true);
+ /* 30 */ T(REJECT_AFTER_MESSAGES + 1, false);
+ /* 31 */ T(REJECT_AFTER_MESSAGES + 2, false);
+ /* 32 */ T(REJECT_AFTER_MESSAGES - 2, false);
+ /* 33 */ T(REJECT_AFTER_MESSAGES - 3, true);
+ /* 34 */ T(0, false);
+
+ T_INIT;
+ for (i = 1; i <= COUNTER_WINDOW_SIZE; ++i)
+ T(i, true);
+ T(0, true);
+ T(0, false);
+
+ T_INIT;
+ for (i = 2; i <= COUNTER_WINDOW_SIZE + 1; ++i)
+ T(i, true);
+ T(1, true);
+ T(0, false);
+
+ T_INIT;
+ for (i = COUNTER_WINDOW_SIZE + 1; i-- > 0;)
+ T(i, true);
+
+ T_INIT;
+ for (i = COUNTER_WINDOW_SIZE + 2; i-- > 1;)
+ T(i, true);
+ T(0, false);
+
+ T_INIT;
+ for (i = COUNTER_WINDOW_SIZE + 1; i-- > 1;)
+ T(i, true);
+ T(COUNTER_WINDOW_SIZE + 1, true);
+ T(0, false);
+
+ T_INIT;
+ for (i = COUNTER_WINDOW_SIZE + 1; i-- > 1;)
+ T(i, true);
+ T(0, true);
+ T(COUNTER_WINDOW_SIZE + 1, true);
+
+#undef T
+#undef T_LIM
+#undef T_INIT
+
+ if (success)
+ pr_info("nonce counter self-tests: pass\n");
+ kfree(counter);
+ return success;
+}
+#endif
diff --git a/drivers/net/wireguard/selftest/ratelimiter.c b/drivers/net/wireguard/selftest/ratelimiter.c
new file mode 100644
index 0000000..007cd44
--- /dev/null
+++ b/drivers/net/wireguard/selftest/ratelimiter.c
@@ -0,0 +1,226 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#ifdef DEBUG
+
+#include <linux/jiffies.h>
+
+static const struct {
+ bool result;
+ unsigned int msec_to_sleep_before;
+} expected_results[] __initconst = {
+ [0 ... PACKETS_BURSTABLE - 1] = { true, 0 },
+ [PACKETS_BURSTABLE] = { false, 0 },
+ [PACKETS_BURSTABLE + 1] = { true, MSEC_PER_SEC / PACKETS_PER_SECOND },
+ [PACKETS_BURSTABLE + 2] = { false, 0 },
+ [PACKETS_BURSTABLE + 3] = { true, (MSEC_PER_SEC / PACKETS_PER_SECOND) * 2 },
+ [PACKETS_BURSTABLE + 4] = { true, 0 },
+ [PACKETS_BURSTABLE + 5] = { false, 0 }
+};
+
+static __init unsigned int maximum_jiffies_at_index(int index)
+{
+ unsigned int total_msecs = 2 * MSEC_PER_SEC / PACKETS_PER_SECOND / 3;
+ int i;
+
+ for (i = 0; i <= index; ++i)
+ total_msecs += expected_results[i].msec_to_sleep_before;
+ return msecs_to_jiffies(total_msecs);
+}
+
+static __init int timings_test(struct sk_buff *skb4, struct iphdr *hdr4,
+ struct sk_buff *skb6, struct ipv6hdr *hdr6,
+ int *test)
+{
+ unsigned long loop_start_time;
+ int i;
+
+ wg_ratelimiter_gc_entries(NULL);
+ rcu_barrier();
+ loop_start_time = jiffies;
+
+ for (i = 0; i < ARRAY_SIZE(expected_results); ++i) {
+ if (expected_results[i].msec_to_sleep_before)
+ msleep(expected_results[i].msec_to_sleep_before);
+
+ if (time_is_before_jiffies(loop_start_time +
+ maximum_jiffies_at_index(i)))
+ return -ETIMEDOUT;
+ if (wg_ratelimiter_allow(skb4, &init_net) !=
+ expected_results[i].result)
+ return -EXFULL;
+ ++(*test);
+
+ hdr4->saddr = htonl(ntohl(hdr4->saddr) + i + 1);
+ if (time_is_before_jiffies(loop_start_time +
+ maximum_jiffies_at_index(i)))
+ return -ETIMEDOUT;
+ if (!wg_ratelimiter_allow(skb4, &init_net))
+ return -EXFULL;
+ ++(*test);
+
+ hdr4->saddr = htonl(ntohl(hdr4->saddr) - i - 1);
+
+#if IS_ENABLED(CONFIG_IPV6)
+ hdr6->saddr.in6_u.u6_addr32[2] = htonl(i);
+ hdr6->saddr.in6_u.u6_addr32[3] = htonl(i);
+ if (time_is_before_jiffies(loop_start_time +
+ maximum_jiffies_at_index(i)))
+ return -ETIMEDOUT;
+ if (wg_ratelimiter_allow(skb6, &init_net) !=
+ expected_results[i].result)
+ return -EXFULL;
+ ++(*test);
+
+ hdr6->saddr.in6_u.u6_addr32[0] =
+ htonl(ntohl(hdr6->saddr.in6_u.u6_addr32[0]) + i + 1);
+ if (time_is_before_jiffies(loop_start_time +
+ maximum_jiffies_at_index(i)))
+ return -ETIMEDOUT;
+ if (!wg_ratelimiter_allow(skb6, &init_net))
+ return -EXFULL;
+ ++(*test);
+
+ hdr6->saddr.in6_u.u6_addr32[0] =
+ htonl(ntohl(hdr6->saddr.in6_u.u6_addr32[0]) - i - 1);
+
+ if (time_is_before_jiffies(loop_start_time +
+ maximum_jiffies_at_index(i)))
+ return -ETIMEDOUT;
+#endif
+ }
+ return 0;
+}
+
+static __init int capacity_test(struct sk_buff *skb4, struct iphdr *hdr4,
+ int *test)
+{
+ int i;
+
+ wg_ratelimiter_gc_entries(NULL);
+ rcu_barrier();
+
+ if (atomic_read(&total_entries))
+ return -EXFULL;
+ ++(*test);
+
+ for (i = 0; i <= max_entries; ++i) {
+ hdr4->saddr = htonl(i);
+ if (wg_ratelimiter_allow(skb4, &init_net) != (i != max_entries))
+ return -EXFULL;
+ ++(*test);
+ }
+ return 0;
+}
+
+bool __init wg_ratelimiter_selftest(void)
+{
+ enum { TRIALS_BEFORE_GIVING_UP = 5000 };
+ bool success = false;
+ int test = 0, trials;
+ struct sk_buff *skb4, *skb6 = NULL;
+ struct iphdr *hdr4;
+ struct ipv6hdr *hdr6 = NULL;
+
+ if (IS_ENABLED(CONFIG_KASAN) || IS_ENABLED(CONFIG_UBSAN))
+ return true;
+
+ BUILD_BUG_ON(MSEC_PER_SEC % PACKETS_PER_SECOND != 0);
+
+ if (wg_ratelimiter_init())
+ goto out;
+ ++test;
+ if (wg_ratelimiter_init()) {
+ wg_ratelimiter_uninit();
+ goto out;
+ }
+ ++test;
+ if (wg_ratelimiter_init()) {
+ wg_ratelimiter_uninit();
+ wg_ratelimiter_uninit();
+ goto out;
+ }
+ ++test;
+
+ skb4 = alloc_skb(sizeof(struct iphdr), GFP_KERNEL);
+ if (unlikely(!skb4))
+ goto err_nofree;
+ skb4->protocol = htons(ETH_P_IP);
+ hdr4 = (struct iphdr *)skb_put(skb4, sizeof(*hdr4));
+ hdr4->saddr = htonl(8182);
+ skb_reset_network_header(skb4);
+ ++test;
+
+#if IS_ENABLED(CONFIG_IPV6)
+ skb6 = alloc_skb(sizeof(struct ipv6hdr), GFP_KERNEL);
+ if (unlikely(!skb6)) {
+ kfree_skb(skb4);
+ goto err_nofree;
+ }
+ skb6->protocol = htons(ETH_P_IPV6);
+ hdr6 = (struct ipv6hdr *)skb_put(skb6, sizeof(*hdr6));
+ hdr6->saddr.in6_u.u6_addr32[0] = htonl(1212);
+ hdr6->saddr.in6_u.u6_addr32[1] = htonl(289188);
+ skb_reset_network_header(skb6);
+ ++test;
+#endif
+
+ for (trials = TRIALS_BEFORE_GIVING_UP;;) {
+ int test_count = 0, ret;
+
+ ret = timings_test(skb4, hdr4, skb6, hdr6, &test_count);
+ if (ret == -ETIMEDOUT) {
+ if (!trials--) {
+ test += test_count;
+ goto err;
+ }
+ msleep(500);
+ continue;
+ } else if (ret < 0) {
+ test += test_count;
+ goto err;
+ } else {
+ test += test_count;
+ break;
+ }
+ }
+
+ for (trials = TRIALS_BEFORE_GIVING_UP;;) {
+ int test_count = 0;
+
+ if (capacity_test(skb4, hdr4, &test_count) < 0) {
+ if (!trials--) {
+ test += test_count;
+ goto err;
+ }
+ msleep(50);
+ continue;
+ }
+ test += test_count;
+ break;
+ }
+
+ success = true;
+
+err:
+ kfree_skb(skb4);
+#if IS_ENABLED(CONFIG_IPV6)
+ kfree_skb(skb6);
+#endif
+err_nofree:
+ wg_ratelimiter_uninit();
+ wg_ratelimiter_uninit();
+ wg_ratelimiter_uninit();
+ /* Uninit one extra time to check underflow detection. */
+ wg_ratelimiter_uninit();
+out:
+ if (success)
+ pr_info("ratelimiter self-tests: pass\n");
+ else
+ pr_err("ratelimiter self-test %d: FAIL\n", test);
+
+ return success;
+}
+#endif
diff --git a/drivers/net/wireguard/send.c b/drivers/net/wireguard/send.c
new file mode 100644
index 0000000..f74b934
--- /dev/null
+++ b/drivers/net/wireguard/send.c
@@ -0,0 +1,422 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#include "queueing.h"
+#include "timers.h"
+#include "device.h"
+#include "peer.h"
+#include "socket.h"
+#include "messages.h"
+#include "cookie.h"
+
+#include <linux/uio.h>
+#include <linux/inetdevice.h>
+#include <linux/socket.h>
+#include <net/ip_tunnels.h>
+#include <net/udp.h>
+#include <net/sock.h>
+
+static void wg_packet_send_handshake_initiation(struct wg_peer *peer)
+{
+ struct message_handshake_initiation packet;
+
+ if (!wg_birthdate_has_expired(atomic64_read(&peer->last_sent_handshake),
+ REKEY_TIMEOUT))
+ return; /* This function is rate limited. */
+
+ atomic64_set(&peer->last_sent_handshake, ktime_get_coarse_boottime_ns());
+ net_dbg_ratelimited("%s: Sending handshake initiation to peer %llu (%pISpfsc)\n",
+ peer->device->dev->name, peer->internal_id,
+ &peer->endpoint.addr);
+
+ if (wg_noise_handshake_create_initiation(&packet, &peer->handshake)) {
+ wg_cookie_add_mac_to_packet(&packet, sizeof(packet), peer);
+ wg_timers_any_authenticated_packet_traversal(peer);
+ wg_timers_any_authenticated_packet_sent(peer);
+ atomic64_set(&peer->last_sent_handshake,
+ ktime_get_coarse_boottime_ns());
+ wg_socket_send_buffer_to_peer(peer, &packet, sizeof(packet),
+ HANDSHAKE_DSCP);
+ wg_timers_handshake_initiated(peer);
+ }
+}
+
+void wg_packet_handshake_send_worker(struct work_struct *work)
+{
+ struct wg_peer *peer = container_of(work, struct wg_peer,
+ transmit_handshake_work);
+
+ wg_packet_send_handshake_initiation(peer);
+ wg_peer_put(peer);
+}
+
+void wg_packet_send_queued_handshake_initiation(struct wg_peer *peer,
+ bool is_retry)
+{
+ if (!is_retry)
+ peer->timer_handshake_attempts = 0;
+
+ rcu_read_lock_bh();
+ /* We check last_sent_handshake here in addition to the actual function
+ * we're queueing up, so that we don't queue things if not strictly
+ * necessary:
+ */
+ if (!wg_birthdate_has_expired(atomic64_read(&peer->last_sent_handshake),
+ REKEY_TIMEOUT) ||
+ unlikely(READ_ONCE(peer->is_dead)))
+ goto out;
+
+ wg_peer_get(peer);
+ /* Queues up calling packet_send_queued_handshakes(peer), where we do a
+ * peer_put(peer) after:
+ */
+ if (!queue_work(peer->device->handshake_send_wq,
+ &peer->transmit_handshake_work))
+ /* If the work was already queued, we want to drop the
+ * extra reference:
+ */
+ wg_peer_put(peer);
+out:
+ rcu_read_unlock_bh();
+}
+
+void wg_packet_send_handshake_response(struct wg_peer *peer)
+{
+ struct message_handshake_response packet;
+
+ atomic64_set(&peer->last_sent_handshake, ktime_get_coarse_boottime_ns());
+ net_dbg_ratelimited("%s: Sending handshake response to peer %llu (%pISpfsc)\n",
+ peer->device->dev->name, peer->internal_id,
+ &peer->endpoint.addr);
+
+ if (wg_noise_handshake_create_response(&packet, &peer->handshake)) {
+ wg_cookie_add_mac_to_packet(&packet, sizeof(packet), peer);
+ if (wg_noise_handshake_begin_session(&peer->handshake,
+ &peer->keypairs)) {
+ wg_timers_session_derived(peer);
+ wg_timers_any_authenticated_packet_traversal(peer);
+ wg_timers_any_authenticated_packet_sent(peer);
+ atomic64_set(&peer->last_sent_handshake,
+ ktime_get_coarse_boottime_ns());
+ wg_socket_send_buffer_to_peer(peer, &packet,
+ sizeof(packet),
+ HANDSHAKE_DSCP);
+ }
+ }
+}
+
+void wg_packet_send_handshake_cookie(struct wg_device *wg,
+ struct sk_buff *initiating_skb,
+ __le32 sender_index)
+{
+ struct message_handshake_cookie packet;
+
+ net_dbg_skb_ratelimited("%s: Sending cookie response for denied handshake message for %pISpfsc\n",
+ wg->dev->name, initiating_skb);
+ wg_cookie_message_create(&packet, initiating_skb, sender_index,
+ &wg->cookie_checker);
+ wg_socket_send_buffer_as_reply_to_skb(wg, initiating_skb, &packet,
+ sizeof(packet));
+}
+
+static void keep_key_fresh(struct wg_peer *peer)
+{
+ struct noise_keypair *keypair;
+ bool send;
+
+ rcu_read_lock_bh();
+ keypair = rcu_dereference_bh(peer->keypairs.current_keypair);
+ send = keypair && READ_ONCE(keypair->sending.is_valid) &&
+ (atomic64_read(&keypair->sending_counter) > REKEY_AFTER_MESSAGES ||
+ (keypair->i_am_the_initiator &&
+ wg_birthdate_has_expired(keypair->sending.birthdate, REKEY_AFTER_TIME)));
+ rcu_read_unlock_bh();
+
+ if (unlikely(send))
+ wg_packet_send_queued_handshake_initiation(peer, false);
+}
+
+static unsigned int calculate_skb_padding(struct sk_buff *skb)
+{
+ unsigned int padded_size, last_unit = skb->len;
+
+ if (unlikely(!PACKET_CB(skb)->mtu))
+ return ALIGN(last_unit, MESSAGE_PADDING_MULTIPLE) - last_unit;
+
+ /* We do this modulo business with the MTU, just in case the networking
+ * layer gives us a packet that's bigger than the MTU. In that case, we
+ * wouldn't want the final subtraction to overflow in the case of the
+ * padded_size being clamped. Fortunately, that's very rarely the case,
+ * so we optimize for that not happening.
+ */
+ if (unlikely(last_unit > PACKET_CB(skb)->mtu))
+ last_unit %= PACKET_CB(skb)->mtu;
+
+ padded_size = min(PACKET_CB(skb)->mtu,
+ ALIGN(last_unit, MESSAGE_PADDING_MULTIPLE));
+ return padded_size - last_unit;
+}
+
+static bool encrypt_packet(struct sk_buff *skb, struct noise_keypair *keypair)
+{
+ unsigned int padding_len, plaintext_len, trailer_len;
+ struct scatterlist sg[MAX_SKB_FRAGS + 8];
+ struct message_data *header;
+ struct sk_buff *trailer;
+ int num_frags;
+
+ /* Force hash calculation before encryption so that flow analysis is
+ * consistent over the inner packet.
+ */
+ skb_get_hash(skb);
+
+ /* Calculate lengths. */
+ padding_len = calculate_skb_padding(skb);
+ trailer_len = padding_len + noise_encrypted_len(0);
+ plaintext_len = skb->len + padding_len;
+
+ /* Expand data section to have room for padding and auth tag. */
+ num_frags = skb_cow_data(skb, trailer_len, &trailer);
+ if (unlikely(num_frags < 0 || num_frags > ARRAY_SIZE(sg)))
+ return false;
+
+ /* Set the padding to zeros, and make sure it and the auth tag are part
+ * of the skb.
+ */
+ memset(skb_tail_pointer(trailer), 0, padding_len);
+
+ /* Expand head section to have room for our header and the network
+ * stack's headers.
+ */
+ if (unlikely(skb_cow_head(skb, DATA_PACKET_HEAD_ROOM) < 0))
+ return false;
+
+ /* Finalize checksum calculation for the inner packet, if required. */
+ if (unlikely(skb->ip_summed == CHECKSUM_PARTIAL &&
+ skb_checksum_help(skb)))
+ return false;
+
+ /* Only after checksumming can we safely add on the padding at the end
+ * and the header.
+ */
+ skb_set_inner_network_header(skb, 0);
+ header = (struct message_data *)skb_push(skb, sizeof(*header));
+ header->header.type = cpu_to_le32(MESSAGE_DATA);
+ header->key_idx = keypair->remote_index;
+ header->counter = cpu_to_le64(PACKET_CB(skb)->nonce);
+ pskb_put(skb, trailer, trailer_len);
+
+ /* Now we can encrypt the scattergather segments */
+ sg_init_table(sg, num_frags);
+ if (skb_to_sgvec(skb, sg, sizeof(struct message_data),
+ noise_encrypted_len(plaintext_len)) <= 0)
+ return false;
+ return chacha20poly1305_encrypt_sg_inplace(sg, plaintext_len, NULL, 0,
+ PACKET_CB(skb)->nonce,
+ keypair->sending.key);
+}
+
+void wg_packet_send_keepalive(struct wg_peer *peer)
+{
+ struct sk_buff *skb;
+
+ if (skb_queue_empty(&peer->staged_packet_queue)) {
+ skb = alloc_skb(DATA_PACKET_HEAD_ROOM + MESSAGE_MINIMUM_LENGTH,
+ GFP_ATOMIC);
+ if (unlikely(!skb))
+ return;
+ skb_reserve(skb, DATA_PACKET_HEAD_ROOM);
+ skb->dev = peer->device->dev;
+ PACKET_CB(skb)->mtu = skb->dev->mtu;
+ skb_queue_tail(&peer->staged_packet_queue, skb);
+ net_dbg_ratelimited("%s: Sending keepalive packet to peer %llu (%pISpfsc)\n",
+ peer->device->dev->name, peer->internal_id,
+ &peer->endpoint.addr);
+ }
+
+ wg_packet_send_staged_packets(peer);
+}
+
+static void wg_packet_create_data_done(struct sk_buff *first,
+ struct wg_peer *peer)
+{
+ struct sk_buff *skb, *next;
+ bool is_keepalive, data_sent = false;
+
+ wg_timers_any_authenticated_packet_traversal(peer);
+ wg_timers_any_authenticated_packet_sent(peer);
+ skb_list_walk_safe(first, skb, next) {
+ is_keepalive = skb->len == message_data_len(0);
+ if (likely(!wg_socket_send_skb_to_peer(peer, skb,
+ PACKET_CB(skb)->ds) && !is_keepalive))
+ data_sent = true;
+ }
+
+ if (likely(data_sent))
+ wg_timers_data_sent(peer);
+
+ keep_key_fresh(peer);
+}
+
+void wg_packet_tx_worker(struct work_struct *work)
+{
+ struct crypt_queue *queue = container_of(work, struct crypt_queue,
+ work);
+ struct noise_keypair *keypair;
+ enum packet_state state;
+ struct sk_buff *first;
+ struct wg_peer *peer;
+
+ while ((first = __ptr_ring_peek(&queue->ring)) != NULL &&
+ (state = atomic_read_acquire(&PACKET_CB(first)->state)) !=
+ PACKET_STATE_UNCRYPTED) {
+ __ptr_ring_discard_one(&queue->ring);
+ peer = PACKET_PEER(first);
+ keypair = PACKET_CB(first)->keypair;
+
+ if (likely(state == PACKET_STATE_CRYPTED))
+ wg_packet_create_data_done(first, peer);
+ else
+ kfree_skb_list(first);
+
+ wg_noise_keypair_put(keypair, false);
+ wg_peer_put(peer);
+ if (need_resched())
+ cond_resched();
+ }
+}
+
+void wg_packet_encrypt_worker(struct work_struct *work)
+{
+ struct crypt_queue *queue = container_of(work, struct multicore_worker,
+ work)->ptr;
+ struct sk_buff *first, *skb, *next;
+
+ while ((first = ptr_ring_consume_bh(&queue->ring)) != NULL) {
+ enum packet_state state = PACKET_STATE_CRYPTED;
+
+ skb_list_walk_safe(first, skb, next) {
+ if (likely(encrypt_packet(skb,
+ PACKET_CB(first)->keypair))) {
+ wg_reset_packet(skb, true);
+ } else {
+ state = PACKET_STATE_DEAD;
+ break;
+ }
+ }
+ wg_queue_enqueue_per_peer(&PACKET_PEER(first)->tx_queue, first,
+ state);
+ if (need_resched())
+ cond_resched();
+ }
+}
+
+static void wg_packet_create_data(struct sk_buff *first)
+{
+ struct wg_peer *peer = PACKET_PEER(first);
+ struct wg_device *wg = peer->device;
+ int ret = -EINVAL;
+
+ rcu_read_lock_bh();
+ if (unlikely(READ_ONCE(peer->is_dead)))
+ goto err;
+
+ ret = wg_queue_enqueue_per_device_and_peer(&wg->encrypt_queue,
+ &peer->tx_queue, first,
+ wg->packet_crypt_wq,
+ &wg->encrypt_queue.last_cpu);
+ if (unlikely(ret == -EPIPE))
+ wg_queue_enqueue_per_peer(&peer->tx_queue, first,
+ PACKET_STATE_DEAD);
+err:
+ rcu_read_unlock_bh();
+ if (likely(!ret || ret == -EPIPE))
+ return;
+ wg_noise_keypair_put(PACKET_CB(first)->keypair, false);
+ wg_peer_put(peer);
+ kfree_skb_list(first);
+}
+
+void wg_packet_purge_staged_packets(struct wg_peer *peer)
+{
+ spin_lock_bh(&peer->staged_packet_queue.lock);
+ peer->device->dev->stats.tx_dropped += peer->staged_packet_queue.qlen;
+ __skb_queue_purge(&peer->staged_packet_queue);
+ spin_unlock_bh(&peer->staged_packet_queue.lock);
+}
+
+void wg_packet_send_staged_packets(struct wg_peer *peer)
+{
+ struct noise_keypair *keypair;
+ struct sk_buff_head packets;
+ struct sk_buff *skb;
+
+ /* Steal the current queue into our local one. */
+ __skb_queue_head_init(&packets);
+ spin_lock_bh(&peer->staged_packet_queue.lock);
+ skb_queue_splice_init(&peer->staged_packet_queue, &packets);
+ spin_unlock_bh(&peer->staged_packet_queue.lock);
+ if (unlikely(skb_queue_empty(&packets)))
+ return;
+
+ /* First we make sure we have a valid reference to a valid key. */
+ rcu_read_lock_bh();
+ keypair = wg_noise_keypair_get(
+ rcu_dereference_bh(peer->keypairs.current_keypair));
+ rcu_read_unlock_bh();
+ if (unlikely(!keypair))
+ goto out_nokey;
+ if (unlikely(!READ_ONCE(keypair->sending.is_valid)))
+ goto out_nokey;
+ if (unlikely(wg_birthdate_has_expired(keypair->sending.birthdate,
+ REJECT_AFTER_TIME)))
+ goto out_invalid;
+
+ /* After we know we have a somewhat valid key, we now try to assign
+ * nonces to all of the packets in the queue. If we can't assign nonces
+ * for all of them, we just consider it a failure and wait for the next
+ * handshake.
+ */
+ skb_queue_walk(&packets, skb) {
+ /* 0 for no outer TOS: no leak. TODO: at some later point, we
+ * might consider using flowi->tos as outer instead.
+ */
+ PACKET_CB(skb)->ds = ip_tunnel_ecn_encap(0, ip_hdr(skb), skb);
+ PACKET_CB(skb)->nonce =
+ atomic64_inc_return(&keypair->sending_counter) - 1;
+ if (unlikely(PACKET_CB(skb)->nonce >= REJECT_AFTER_MESSAGES))
+ goto out_invalid;
+ }
+
+ packets.prev->next = NULL;
+ wg_peer_get(keypair->entry.peer);
+ PACKET_CB(packets.next)->keypair = keypair;
+ wg_packet_create_data(packets.next);
+ return;
+
+out_invalid:
+ WRITE_ONCE(keypair->sending.is_valid, false);
+out_nokey:
+ wg_noise_keypair_put(keypair, false);
+
+ /* We orphan the packets if we're waiting on a handshake, so that they
+ * don't block a socket's pool.
+ */
+ skb_queue_walk(&packets, skb)
+ skb_orphan(skb);
+ /* Then we put them back on the top of the queue. We're not too
+ * concerned about accidentally getting things a little out of order if
+ * packets are being added really fast, because this queue is for before
+ * packets can even be sent and it's small anyway.
+ */
+ spin_lock_bh(&peer->staged_packet_queue.lock);
+ skb_queue_splice(&packets, &peer->staged_packet_queue);
+ spin_unlock_bh(&peer->staged_packet_queue.lock);
+
+ /* If we're exiting because there's something wrong with the key, it
+ * means we should initiate a new handshake.
+ */
+ wg_packet_send_queued_handshake_initiation(peer, false);
+}
diff --git a/drivers/net/wireguard/socket.c b/drivers/net/wireguard/socket.c
new file mode 100644
index 0000000..c33e2c8
--- /dev/null
+++ b/drivers/net/wireguard/socket.c
@@ -0,0 +1,436 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#include "device.h"
+#include "peer.h"
+#include "socket.h"
+#include "queueing.h"
+#include "messages.h"
+
+#include <linux/ctype.h>
+#include <linux/net.h>
+#include <linux/if_vlan.h>
+#include <linux/if_ether.h>
+#include <linux/inetdevice.h>
+#include <net/udp_tunnel.h>
+#include <net/ipv6.h>
+
+static int send4(struct wg_device *wg, struct sk_buff *skb,
+ struct endpoint *endpoint, u8 ds, struct dst_cache *cache)
+{
+ struct flowi4 fl = {
+ .saddr = endpoint->src4.s_addr,
+ .daddr = endpoint->addr4.sin_addr.s_addr,
+ .fl4_dport = endpoint->addr4.sin_port,
+ .flowi4_mark = wg->fwmark,
+ .flowi4_proto = IPPROTO_UDP
+ };
+ struct rtable *rt = NULL;
+ struct sock *sock;
+ int ret = 0;
+
+ skb_mark_not_on_list(skb);
+ skb->dev = wg->dev;
+ skb->mark = wg->fwmark;
+
+ rcu_read_lock_bh();
+ sock = rcu_dereference_bh(wg->sock4);
+
+ if (unlikely(!sock)) {
+ ret = -ENONET;
+ goto err;
+ }
+
+ fl.fl4_sport = inet_sk(sock)->inet_sport;
+
+ if (cache)
+ rt = dst_cache_get_ip4(cache, &fl.saddr);
+
+ if (!rt) {
+ security_sk_classify_flow(sock, flowi4_to_flowi(&fl));
+ if (unlikely(!inet_confirm_addr(sock_net(sock), NULL, 0,
+ fl.saddr, RT_SCOPE_HOST))) {
+ endpoint->src4.s_addr = 0;
+ *(__force __be32 *)&endpoint->src_if4 = 0;
+ fl.saddr = 0;
+ if (cache)
+ dst_cache_reset(cache);
+ }
+ rt = ip_route_output_flow(sock_net(sock), &fl, sock);
+ if (unlikely(endpoint->src_if4 && ((IS_ERR(rt) &&
+ PTR_ERR(rt) == -EINVAL) || (!IS_ERR(rt) &&
+ rt->dst.dev->ifindex != endpoint->src_if4)))) {
+ endpoint->src4.s_addr = 0;
+ *(__force __be32 *)&endpoint->src_if4 = 0;
+ fl.saddr = 0;
+ if (cache)
+ dst_cache_reset(cache);
+ if (!IS_ERR(rt))
+ ip_rt_put(rt);
+ rt = ip_route_output_flow(sock_net(sock), &fl, sock);
+ }
+ if (unlikely(IS_ERR(rt))) {
+ ret = PTR_ERR(rt);
+ net_dbg_ratelimited("%s: No route to %pISpfsc, error %d\n",
+ wg->dev->name, &endpoint->addr, ret);
+ goto err;
+ }
+ if (cache)
+ dst_cache_set_ip4(cache, &rt->dst, fl.saddr);
+ }
+
+ skb->ignore_df = 1;
+ udp_tunnel_xmit_skb(rt, sock, skb, fl.saddr, fl.daddr, ds,
+ ip4_dst_hoplimit(&rt->dst), 0, fl.fl4_sport,
+ fl.fl4_dport, false, false);
+ goto out;
+
+err:
+ kfree_skb(skb);
+out:
+ rcu_read_unlock_bh();
+ return ret;
+}
+
+static int send6(struct wg_device *wg, struct sk_buff *skb,
+ struct endpoint *endpoint, u8 ds, struct dst_cache *cache)
+{
+#if IS_ENABLED(CONFIG_IPV6)
+ struct flowi6 fl = {
+ .saddr = endpoint->src6,
+ .daddr = endpoint->addr6.sin6_addr,
+ .fl6_dport = endpoint->addr6.sin6_port,
+ .flowi6_mark = wg->fwmark,
+ .flowi6_oif = endpoint->addr6.sin6_scope_id,
+ .flowi6_proto = IPPROTO_UDP
+ /* TODO: addr->sin6_flowinfo */
+ };
+ struct dst_entry *dst = NULL;
+ struct sock *sock;
+ int ret = 0;
+
+ skb_mark_not_on_list(skb);
+ skb->dev = wg->dev;
+ skb->mark = wg->fwmark;
+
+ rcu_read_lock_bh();
+ sock = rcu_dereference_bh(wg->sock6);
+
+ if (unlikely(!sock)) {
+ ret = -ENONET;
+ goto err;
+ }
+
+ fl.fl6_sport = inet_sk(sock)->inet_sport;
+
+ if (cache)
+ dst = dst_cache_get_ip6(cache, &fl.saddr);
+
+ if (!dst) {
+ security_sk_classify_flow(sock, flowi6_to_flowi(&fl));
+ if (unlikely(!ipv6_addr_any(&fl.saddr) &&
+ !ipv6_chk_addr(sock_net(sock), &fl.saddr, NULL, 0))) {
+ endpoint->src6 = fl.saddr = in6addr_any;
+ if (cache)
+ dst_cache_reset(cache);
+ }
+ dst = ipv6_stub->ipv6_dst_lookup_flow(sock_net(sock), sock, &fl,
+ NULL);
+ if (unlikely(IS_ERR(dst))) {
+ ret = PTR_ERR(dst);
+ net_dbg_ratelimited("%s: No route to %pISpfsc, error %d\n",
+ wg->dev->name, &endpoint->addr, ret);
+ goto err;
+ }
+ if (cache)
+ dst_cache_set_ip6(cache, dst, &fl.saddr);
+ }
+
+ skb->ignore_df = 1;
+ udp_tunnel6_xmit_skb(dst, sock, skb, skb->dev, &fl.saddr, &fl.daddr, ds,
+ ip6_dst_hoplimit(dst), 0, fl.fl6_sport,
+ fl.fl6_dport, false);
+ goto out;
+
+err:
+ kfree_skb(skb);
+out:
+ rcu_read_unlock_bh();
+ return ret;
+#else
+ return -EAFNOSUPPORT;
+#endif
+}
+
+int wg_socket_send_skb_to_peer(struct wg_peer *peer, struct sk_buff *skb, u8 ds)
+{
+ size_t skb_len = skb->len;
+ int ret = -EAFNOSUPPORT;
+
+ read_lock_bh(&peer->endpoint_lock);
+ if (peer->endpoint.addr.sa_family == AF_INET)
+ ret = send4(peer->device, skb, &peer->endpoint, ds,
+ &peer->endpoint_cache);
+ else if (peer->endpoint.addr.sa_family == AF_INET6)
+ ret = send6(peer->device, skb, &peer->endpoint, ds,
+ &peer->endpoint_cache);
+ else
+ dev_kfree_skb(skb);
+ if (likely(!ret))
+ peer->tx_bytes += skb_len;
+ read_unlock_bh(&peer->endpoint_lock);
+
+ return ret;
+}
+
+int wg_socket_send_buffer_to_peer(struct wg_peer *peer, void *buffer,
+ size_t len, u8 ds)
+{
+ struct sk_buff *skb = alloc_skb(len + SKB_HEADER_LEN, GFP_ATOMIC);
+
+ if (unlikely(!skb))
+ return -ENOMEM;
+
+ skb_reserve(skb, SKB_HEADER_LEN);
+ skb_set_inner_network_header(skb, 0);
+ skb_put_data(skb, buffer, len);
+ return wg_socket_send_skb_to_peer(peer, skb, ds);
+}
+
+int wg_socket_send_buffer_as_reply_to_skb(struct wg_device *wg,
+ struct sk_buff *in_skb, void *buffer,
+ size_t len)
+{
+ int ret = 0;
+ struct sk_buff *skb;
+ struct endpoint endpoint;
+
+ if (unlikely(!in_skb))
+ return -EINVAL;
+ ret = wg_socket_endpoint_from_skb(&endpoint, in_skb);
+ if (unlikely(ret < 0))
+ return ret;
+
+ skb = alloc_skb(len + SKB_HEADER_LEN, GFP_ATOMIC);
+ if (unlikely(!skb))
+ return -ENOMEM;
+ skb_reserve(skb, SKB_HEADER_LEN);
+ skb_set_inner_network_header(skb, 0);
+ skb_put_data(skb, buffer, len);
+
+ if (endpoint.addr.sa_family == AF_INET)
+ ret = send4(wg, skb, &endpoint, 0, NULL);
+ else if (endpoint.addr.sa_family == AF_INET6)
+ ret = send6(wg, skb, &endpoint, 0, NULL);
+ /* No other possibilities if the endpoint is valid, which it is,
+ * as we checked above.
+ */
+
+ return ret;
+}
+
+int wg_socket_endpoint_from_skb(struct endpoint *endpoint,
+ const struct sk_buff *skb)
+{
+ memset(endpoint, 0, sizeof(*endpoint));
+ if (skb->protocol == htons(ETH_P_IP)) {
+ endpoint->addr4.sin_family = AF_INET;
+ endpoint->addr4.sin_port = udp_hdr(skb)->source;
+ endpoint->addr4.sin_addr.s_addr = ip_hdr(skb)->saddr;
+ endpoint->src4.s_addr = ip_hdr(skb)->daddr;
+ endpoint->src_if4 = skb->skb_iif;
+ } else if (skb->protocol == htons(ETH_P_IPV6)) {
+ endpoint->addr6.sin6_family = AF_INET6;
+ endpoint->addr6.sin6_port = udp_hdr(skb)->source;
+ endpoint->addr6.sin6_addr = ipv6_hdr(skb)->saddr;
+ endpoint->addr6.sin6_scope_id = ipv6_iface_scope_id(
+ &ipv6_hdr(skb)->saddr, skb->skb_iif);
+ endpoint->src6 = ipv6_hdr(skb)->daddr;
+ } else {
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static bool endpoint_eq(const struct endpoint *a, const struct endpoint *b)
+{
+ return (a->addr.sa_family == AF_INET && b->addr.sa_family == AF_INET &&
+ a->addr4.sin_port == b->addr4.sin_port &&
+ a->addr4.sin_addr.s_addr == b->addr4.sin_addr.s_addr &&
+ a->src4.s_addr == b->src4.s_addr && a->src_if4 == b->src_if4) ||
+ (a->addr.sa_family == AF_INET6 &&
+ b->addr.sa_family == AF_INET6 &&
+ a->addr6.sin6_port == b->addr6.sin6_port &&
+ ipv6_addr_equal(&a->addr6.sin6_addr, &b->addr6.sin6_addr) &&
+ a->addr6.sin6_scope_id == b->addr6.sin6_scope_id &&
+ ipv6_addr_equal(&a->src6, &b->src6)) ||
+ unlikely(!a->addr.sa_family && !b->addr.sa_family);
+}
+
+void wg_socket_set_peer_endpoint(struct wg_peer *peer,
+ const struct endpoint *endpoint)
+{
+ /* First we check unlocked, in order to optimize, since it's pretty rare
+ * that an endpoint will change. If we happen to be mid-write, and two
+ * CPUs wind up writing the same thing or something slightly different,
+ * it doesn't really matter much either.
+ */
+ if (endpoint_eq(endpoint, &peer->endpoint))
+ return;
+ write_lock_bh(&peer->endpoint_lock);
+ if (endpoint->addr.sa_family == AF_INET) {
+ peer->endpoint.addr4 = endpoint->addr4;
+ peer->endpoint.src4 = endpoint->src4;
+ peer->endpoint.src_if4 = endpoint->src_if4;
+ } else if (endpoint->addr.sa_family == AF_INET6) {
+ peer->endpoint.addr6 = endpoint->addr6;
+ peer->endpoint.src6 = endpoint->src6;
+ } else {
+ goto out;
+ }
+ dst_cache_reset(&peer->endpoint_cache);
+out:
+ write_unlock_bh(&peer->endpoint_lock);
+}
+
+void wg_socket_set_peer_endpoint_from_skb(struct wg_peer *peer,
+ const struct sk_buff *skb)
+{
+ struct endpoint endpoint;
+
+ if (!wg_socket_endpoint_from_skb(&endpoint, skb))
+ wg_socket_set_peer_endpoint(peer, &endpoint);
+}
+
+void wg_socket_clear_peer_endpoint_src(struct wg_peer *peer)
+{
+ write_lock_bh(&peer->endpoint_lock);
+ memset(&peer->endpoint.src6, 0, sizeof(peer->endpoint.src6));
+ dst_cache_reset(&peer->endpoint_cache);
+ write_unlock_bh(&peer->endpoint_lock);
+}
+
+static int wg_receive(struct sock *sk, struct sk_buff *skb)
+{
+ struct wg_device *wg;
+
+ if (unlikely(!sk))
+ goto err;
+ wg = sk->sk_user_data;
+ if (unlikely(!wg))
+ goto err;
+ skb_mark_not_on_list(skb);
+ wg_packet_receive(wg, skb);
+ return 0;
+
+err:
+ kfree_skb(skb);
+ return 0;
+}
+
+static void sock_free(struct sock *sock)
+{
+ if (unlikely(!sock))
+ return;
+ sk_clear_memalloc(sock);
+ udp_tunnel_sock_release(sock->sk_socket);
+}
+
+static void set_sock_opts(struct socket *sock)
+{
+ sock->sk->sk_allocation = GFP_ATOMIC;
+ sock->sk->sk_sndbuf = INT_MAX;
+ sk_set_memalloc(sock->sk);
+}
+
+int wg_socket_init(struct wg_device *wg, u16 port)
+{
+ struct net *net;
+ int ret;
+ struct udp_tunnel_sock_cfg cfg = {
+ .sk_user_data = wg,
+ .encap_type = 1,
+ .encap_rcv = wg_receive
+ };
+ struct socket *new4 = NULL, *new6 = NULL;
+ struct udp_port_cfg port4 = {
+ .family = AF_INET,
+ .local_ip.s_addr = htonl(INADDR_ANY),
+ .local_udp_port = htons(port),
+ .use_udp_checksums = true
+ };
+#if IS_ENABLED(CONFIG_IPV6)
+ int retries = 0;
+ struct udp_port_cfg port6 = {
+ .family = AF_INET6,
+ .local_ip6 = IN6ADDR_ANY_INIT,
+ .use_udp6_tx_checksums = true,
+ .use_udp6_rx_checksums = true,
+ .ipv6_v6only = true
+ };
+#endif
+
+ rcu_read_lock();
+ net = rcu_dereference(wg->creating_net);
+ net = net ? maybe_get_net(net) : NULL;
+ rcu_read_unlock();
+ if (unlikely(!net))
+ return -ENONET;
+
+#if IS_ENABLED(CONFIG_IPV6)
+retry:
+#endif
+
+ ret = udp_sock_create(net, &port4, &new4);
+ if (ret < 0) {
+ pr_err("%s: Could not create IPv4 socket\n", wg->dev->name);
+ goto out;
+ }
+ set_sock_opts(new4);
+ setup_udp_tunnel_sock(net, new4, &cfg);
+
+#if IS_ENABLED(CONFIG_IPV6)
+ if (ipv6_mod_enabled()) {
+ port6.local_udp_port = inet_sk(new4->sk)->inet_sport;
+ ret = udp_sock_create(net, &port6, &new6);
+ if (ret < 0) {
+ udp_tunnel_sock_release(new4);
+ if (ret == -EADDRINUSE && !port && retries++ < 100)
+ goto retry;
+ pr_err("%s: Could not create IPv6 socket\n",
+ wg->dev->name);
+ goto out;
+ }
+ set_sock_opts(new6);
+ setup_udp_tunnel_sock(net, new6, &cfg);
+ }
+#endif
+
+ wg_socket_reinit(wg, new4->sk, new6 ? new6->sk : NULL);
+ ret = 0;
+out:
+ put_net(net);
+ return ret;
+}
+
+void wg_socket_reinit(struct wg_device *wg, struct sock *new4,
+ struct sock *new6)
+{
+ struct sock *old4, *old6;
+
+ mutex_lock(&wg->socket_update_lock);
+ old4 = rcu_dereference_protected(wg->sock4,
+ lockdep_is_held(&wg->socket_update_lock));
+ old6 = rcu_dereference_protected(wg->sock6,
+ lockdep_is_held(&wg->socket_update_lock));
+ rcu_assign_pointer(wg->sock4, new4);
+ rcu_assign_pointer(wg->sock6, new6);
+ if (new4)
+ wg->incoming_port = ntohs(inet_sk(new4)->inet_sport);
+ mutex_unlock(&wg->socket_update_lock);
+ synchronize_rcu();
+ sock_free(old4);
+ sock_free(old6);
+}
diff --git a/drivers/net/wireguard/socket.h b/drivers/net/wireguard/socket.h
new file mode 100644
index 0000000..bab5848
--- /dev/null
+++ b/drivers/net/wireguard/socket.h
@@ -0,0 +1,44 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#ifndef _WG_SOCKET_H
+#define _WG_SOCKET_H
+
+#include <linux/netdevice.h>
+#include <linux/udp.h>
+#include <linux/if_vlan.h>
+#include <linux/if_ether.h>
+
+int wg_socket_init(struct wg_device *wg, u16 port);
+void wg_socket_reinit(struct wg_device *wg, struct sock *new4,
+ struct sock *new6);
+int wg_socket_send_buffer_to_peer(struct wg_peer *peer, void *data,
+ size_t len, u8 ds);
+int wg_socket_send_skb_to_peer(struct wg_peer *peer, struct sk_buff *skb,
+ u8 ds);
+int wg_socket_send_buffer_as_reply_to_skb(struct wg_device *wg,
+ struct sk_buff *in_skb,
+ void *out_buffer, size_t len);
+
+int wg_socket_endpoint_from_skb(struct endpoint *endpoint,
+ const struct sk_buff *skb);
+void wg_socket_set_peer_endpoint(struct wg_peer *peer,
+ const struct endpoint *endpoint);
+void wg_socket_set_peer_endpoint_from_skb(struct wg_peer *peer,
+ const struct sk_buff *skb);
+void wg_socket_clear_peer_endpoint_src(struct wg_peer *peer);
+
+#if defined(CONFIG_DYNAMIC_DEBUG) || defined(DEBUG)
+#define net_dbg_skb_ratelimited(fmt, dev, skb, ...) do { \
+ struct endpoint __endpoint; \
+ wg_socket_endpoint_from_skb(&__endpoint, skb); \
+ net_dbg_ratelimited(fmt, dev, &__endpoint.addr, \
+ ##__VA_ARGS__); \
+ } while (0)
+#else
+#define net_dbg_skb_ratelimited(fmt, skb, ...)
+#endif
+
+#endif /* _WG_SOCKET_H */
diff --git a/drivers/net/wireguard/timers.c b/drivers/net/wireguard/timers.c
new file mode 100644
index 0000000..d54d32a
--- /dev/null
+++ b/drivers/net/wireguard/timers.c
@@ -0,0 +1,243 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#include "timers.h"
+#include "device.h"
+#include "peer.h"
+#include "queueing.h"
+#include "socket.h"
+
+/*
+ * - Timer for retransmitting the handshake if we don't hear back after
+ * `REKEY_TIMEOUT + jitter` ms.
+ *
+ * - Timer for sending empty packet if we have received a packet but after have
+ * not sent one for `KEEPALIVE_TIMEOUT` ms.
+ *
+ * - Timer for initiating new handshake if we have sent a packet but after have
+ * not received one (even empty) for `(KEEPALIVE_TIMEOUT + REKEY_TIMEOUT) +
+ * jitter` ms.
+ *
+ * - Timer for zeroing out all ephemeral keys after `(REJECT_AFTER_TIME * 3)` ms
+ * if no new keys have been received.
+ *
+ * - Timer for, if enabled, sending an empty authenticated packet every user-
+ * specified seconds.
+ */
+
+static inline void mod_peer_timer(struct wg_peer *peer,
+ struct timer_list *timer,
+ unsigned long expires)
+{
+ rcu_read_lock_bh();
+ if (likely(netif_running(peer->device->dev) &&
+ !READ_ONCE(peer->is_dead)))
+ mod_timer(timer, expires);
+ rcu_read_unlock_bh();
+}
+
+static void wg_expired_retransmit_handshake(struct timer_list *timer)
+{
+ struct wg_peer *peer = from_timer(peer, timer,
+ timer_retransmit_handshake);
+
+ if (peer->timer_handshake_attempts > MAX_TIMER_HANDSHAKES) {
+ pr_debug("%s: Handshake for peer %llu (%pISpfsc) did not complete after %d attempts, giving up\n",
+ peer->device->dev->name, peer->internal_id,
+ &peer->endpoint.addr, MAX_TIMER_HANDSHAKES + 2);
+
+ del_timer(&peer->timer_send_keepalive);
+ /* We drop all packets without a keypair and don't try again,
+ * if we try unsuccessfully for too long to make a handshake.
+ */
+ wg_packet_purge_staged_packets(peer);
+
+ /* We set a timer for destroying any residue that might be left
+ * of a partial exchange.
+ */
+ if (!timer_pending(&peer->timer_zero_key_material))
+ mod_peer_timer(peer, &peer->timer_zero_key_material,
+ jiffies + REJECT_AFTER_TIME * 3 * HZ);
+ } else {
+ ++peer->timer_handshake_attempts;
+ pr_debug("%s: Handshake for peer %llu (%pISpfsc) did not complete after %d seconds, retrying (try %d)\n",
+ peer->device->dev->name, peer->internal_id,
+ &peer->endpoint.addr, REKEY_TIMEOUT,
+ peer->timer_handshake_attempts + 1);
+
+ /* We clear the endpoint address src address, in case this is
+ * the cause of trouble.
+ */
+ wg_socket_clear_peer_endpoint_src(peer);
+
+ wg_packet_send_queued_handshake_initiation(peer, true);
+ }
+}
+
+static void wg_expired_send_keepalive(struct timer_list *timer)
+{
+ struct wg_peer *peer = from_timer(peer, timer, timer_send_keepalive);
+
+ wg_packet_send_keepalive(peer);
+ if (peer->timer_need_another_keepalive) {
+ peer->timer_need_another_keepalive = false;
+ mod_peer_timer(peer, &peer->timer_send_keepalive,
+ jiffies + KEEPALIVE_TIMEOUT * HZ);
+ }
+}
+
+static void wg_expired_new_handshake(struct timer_list *timer)
+{
+ struct wg_peer *peer = from_timer(peer, timer, timer_new_handshake);
+
+ pr_debug("%s: Retrying handshake with peer %llu (%pISpfsc) because we stopped hearing back after %d seconds\n",
+ peer->device->dev->name, peer->internal_id,
+ &peer->endpoint.addr, KEEPALIVE_TIMEOUT + REKEY_TIMEOUT);
+ /* We clear the endpoint address src address, in case this is the cause
+ * of trouble.
+ */
+ wg_socket_clear_peer_endpoint_src(peer);
+ wg_packet_send_queued_handshake_initiation(peer, false);
+}
+
+static void wg_expired_zero_key_material(struct timer_list *timer)
+{
+ struct wg_peer *peer = from_timer(peer, timer, timer_zero_key_material);
+
+ rcu_read_lock_bh();
+ if (!READ_ONCE(peer->is_dead)) {
+ wg_peer_get(peer);
+ if (!queue_work(peer->device->handshake_send_wq,
+ &peer->clear_peer_work))
+ /* If the work was already on the queue, we want to drop
+ * the extra reference.
+ */
+ wg_peer_put(peer);
+ }
+ rcu_read_unlock_bh();
+}
+
+static void wg_queued_expired_zero_key_material(struct work_struct *work)
+{
+ struct wg_peer *peer = container_of(work, struct wg_peer,
+ clear_peer_work);
+
+ pr_debug("%s: Zeroing out all keys for peer %llu (%pISpfsc), since we haven't received a new one in %d seconds\n",
+ peer->device->dev->name, peer->internal_id,
+ &peer->endpoint.addr, REJECT_AFTER_TIME * 3);
+ wg_noise_handshake_clear(&peer->handshake);
+ wg_noise_keypairs_clear(&peer->keypairs);
+ wg_peer_put(peer);
+}
+
+static void wg_expired_send_persistent_keepalive(struct timer_list *timer)
+{
+ struct wg_peer *peer = from_timer(peer, timer,
+ timer_persistent_keepalive);
+
+ if (likely(peer->persistent_keepalive_interval))
+ wg_packet_send_keepalive(peer);
+}
+
+/* Should be called after an authenticated data packet is sent. */
+void wg_timers_data_sent(struct wg_peer *peer)
+{
+ if (!timer_pending(&peer->timer_new_handshake))
+ mod_peer_timer(peer, &peer->timer_new_handshake,
+ jiffies + (KEEPALIVE_TIMEOUT + REKEY_TIMEOUT) * HZ +
+ prandom_u32_max(REKEY_TIMEOUT_JITTER_MAX_JIFFIES));
+}
+
+/* Should be called after an authenticated data packet is received. */
+void wg_timers_data_received(struct wg_peer *peer)
+{
+ if (likely(netif_running(peer->device->dev))) {
+ if (!timer_pending(&peer->timer_send_keepalive))
+ mod_peer_timer(peer, &peer->timer_send_keepalive,
+ jiffies + KEEPALIVE_TIMEOUT * HZ);
+ else
+ peer->timer_need_another_keepalive = true;
+ }
+}
+
+/* Should be called after any type of authenticated packet is sent, whether
+ * keepalive, data, or handshake.
+ */
+void wg_timers_any_authenticated_packet_sent(struct wg_peer *peer)
+{
+ del_timer(&peer->timer_send_keepalive);
+}
+
+/* Should be called after any type of authenticated packet is received, whether
+ * keepalive, data, or handshake.
+ */
+void wg_timers_any_authenticated_packet_received(struct wg_peer *peer)
+{
+ del_timer(&peer->timer_new_handshake);
+}
+
+/* Should be called after a handshake initiation message is sent. */
+void wg_timers_handshake_initiated(struct wg_peer *peer)
+{
+ mod_peer_timer(peer, &peer->timer_retransmit_handshake,
+ jiffies + REKEY_TIMEOUT * HZ +
+ prandom_u32_max(REKEY_TIMEOUT_JITTER_MAX_JIFFIES));
+}
+
+/* Should be called after a handshake response message is received and processed
+ * or when getting key confirmation via the first data message.
+ */
+void wg_timers_handshake_complete(struct wg_peer *peer)
+{
+ del_timer(&peer->timer_retransmit_handshake);
+ peer->timer_handshake_attempts = 0;
+ peer->sent_lastminute_handshake = false;
+ ktime_get_real_ts64(&peer->walltime_last_handshake);
+}
+
+/* Should be called after an ephemeral key is created, which is before sending a
+ * handshake response or after receiving a handshake response.
+ */
+void wg_timers_session_derived(struct wg_peer *peer)
+{
+ mod_peer_timer(peer, &peer->timer_zero_key_material,
+ jiffies + REJECT_AFTER_TIME * 3 * HZ);
+}
+
+/* Should be called before a packet with authentication, whether
+ * keepalive, data, or handshakem is sent, or after one is received.
+ */
+void wg_timers_any_authenticated_packet_traversal(struct wg_peer *peer)
+{
+ if (peer->persistent_keepalive_interval)
+ mod_peer_timer(peer, &peer->timer_persistent_keepalive,
+ jiffies + peer->persistent_keepalive_interval * HZ);
+}
+
+void wg_timers_init(struct wg_peer *peer)
+{
+ timer_setup(&peer->timer_retransmit_handshake,
+ wg_expired_retransmit_handshake, 0);
+ timer_setup(&peer->timer_send_keepalive, wg_expired_send_keepalive, 0);
+ timer_setup(&peer->timer_new_handshake, wg_expired_new_handshake, 0);
+ timer_setup(&peer->timer_zero_key_material,
+ wg_expired_zero_key_material, 0);
+ timer_setup(&peer->timer_persistent_keepalive,
+ wg_expired_send_persistent_keepalive, 0);
+ INIT_WORK(&peer->clear_peer_work, wg_queued_expired_zero_key_material);
+ peer->timer_handshake_attempts = 0;
+ peer->sent_lastminute_handshake = false;
+ peer->timer_need_another_keepalive = false;
+}
+
+void wg_timers_stop(struct wg_peer *peer)
+{
+ del_timer_sync(&peer->timer_retransmit_handshake);
+ del_timer_sync(&peer->timer_send_keepalive);
+ del_timer_sync(&peer->timer_new_handshake);
+ del_timer_sync(&peer->timer_zero_key_material);
+ del_timer_sync(&peer->timer_persistent_keepalive);
+ flush_work(&peer->clear_peer_work);
+}
diff --git a/drivers/net/wireguard/timers.h b/drivers/net/wireguard/timers.h
new file mode 100644
index 0000000..f0653dc
--- /dev/null
+++ b/drivers/net/wireguard/timers.h
@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#ifndef _WG_TIMERS_H
+#define _WG_TIMERS_H
+
+#include <linux/ktime.h>
+
+struct wg_peer;
+
+void wg_timers_init(struct wg_peer *peer);
+void wg_timers_stop(struct wg_peer *peer);
+void wg_timers_data_sent(struct wg_peer *peer);
+void wg_timers_data_received(struct wg_peer *peer);
+void wg_timers_any_authenticated_packet_sent(struct wg_peer *peer);
+void wg_timers_any_authenticated_packet_received(struct wg_peer *peer);
+void wg_timers_handshake_initiated(struct wg_peer *peer);
+void wg_timers_handshake_complete(struct wg_peer *peer);
+void wg_timers_session_derived(struct wg_peer *peer);
+void wg_timers_any_authenticated_packet_traversal(struct wg_peer *peer);
+
+static inline bool wg_birthdate_has_expired(u64 birthday_nanoseconds,
+ u64 expiration_seconds)
+{
+ return (s64)(birthday_nanoseconds + expiration_seconds * NSEC_PER_SEC)
+ <= (s64)ktime_get_coarse_boottime_ns();
+}
+
+#endif /* _WG_TIMERS_H */
diff --git a/drivers/net/wireguard/version.h b/drivers/net/wireguard/version.h
new file mode 100644
index 0000000..a1a269a
--- /dev/null
+++ b/drivers/net/wireguard/version.h
@@ -0,0 +1 @@
+#define WIREGUARD_VERSION "1.0.0"
diff --git a/drivers/net/wireless/Kconfig b/drivers/net/wireless/Kconfig
index 166920a..8c456a6 100644
--- a/drivers/net/wireless/Kconfig
+++ b/drivers/net/wireless/Kconfig
@@ -114,4 +114,11 @@
If you choose to build a module, it'll be called rndis_wlan.
+config VIRT_WIFI
+ tristate "Wifi wrapper for ethernet drivers"
+ depends on CFG80211
+ ---help---
+ This option adds support for ethernet connections to appear as if they
+ are wifi connections through a special rtnetlink device.
+
endif # WLAN
diff --git a/drivers/net/wireless/Makefile b/drivers/net/wireless/Makefile
index 7fc9630..6cfe745 100644
--- a/drivers/net/wireless/Makefile
+++ b/drivers/net/wireless/Makefile
@@ -27,3 +27,5 @@
obj-$(CONFIG_USB_NET_RNDIS_WLAN) += rndis_wlan.o
obj-$(CONFIG_MAC80211_HWSIM) += mac80211_hwsim.o
+
+obj-$(CONFIG_VIRT_WIFI) += virt_wifi.o
diff --git a/drivers/net/wireless/ath/wil6210/cfg80211.c b/drivers/net/wireless/ath/wil6210/cfg80211.c
index 1fc2bf6..bfa5511 100644
--- a/drivers/net/wireless/ath/wil6210/cfg80211.c
+++ b/drivers/net/wireless/ath/wil6210/cfg80211.c
@@ -311,7 +311,7 @@ int wil_cid_fill_sinfo(struct wil6210_vif *vif, int cid,
BIT_ULL(NL80211_STA_INFO_RX_DROP_MISC) |
BIT_ULL(NL80211_STA_INFO_TX_FAILED);
- sinfo->txrate.flags = RATE_INFO_FLAGS_60G;
+ sinfo->txrate.flags = RATE_INFO_FLAGS_DMG;
sinfo->txrate.mcs = le16_to_cpu(reply.evt.bf_mcs);
sinfo->rxrate.mcs = stats->last_mcs_rx;
sinfo->rx_bytes = stats->rx_bytes;
diff --git a/drivers/net/wireless/virt_wifi.c b/drivers/net/wireless/virt_wifi.c
new file mode 100644
index 0000000..9542372
--- /dev/null
+++ b/drivers/net/wireless/virt_wifi.c
@@ -0,0 +1,726 @@
+// SPDX-License-Identifier: GPL-2.0
+/* drivers/net/wireless/virt_wifi.c
+ *
+ * A fake implementation of cfg80211_ops that can be tacked on to an ethernet
+ * net_device to make it appear as a wireless connection.
+ *
+ * Copyright (C) 2018 Google, Inc.
+ *
+ * Author: schuffelen@google.com
+ */
+
+#include <net/cfg80211.h>
+#include <net/rtnetlink.h>
+#include <linux/etherdevice.h>
+#include <linux/math64.h>
+#include <linux/module.h>
+
+#include <net/cfg80211.h>
+#include <net/rtnetlink.h>
+#include <linux/etherdevice.h>
+#include <linux/module.h>
+#include <net/virt_wifi.h>
+
+static struct wiphy *common_wiphy;
+
+struct virt_wifi_wiphy_priv {
+ struct delayed_work scan_result;
+ struct cfg80211_scan_request *scan_request;
+ bool being_deleted;
+ struct virt_wifi_network_simulation *network_simulation;
+};
+
+static struct ieee80211_channel channel_2ghz = {
+ .band = NL80211_BAND_2GHZ,
+ .center_freq = 2432,
+ .hw_value = 2432,
+ .max_power = 20,
+};
+
+static struct ieee80211_rate bitrates_2ghz[] = {
+ { .bitrate = 10 },
+ { .bitrate = 20 },
+ { .bitrate = 55 },
+ { .bitrate = 110 },
+ { .bitrate = 60 },
+ { .bitrate = 120 },
+ { .bitrate = 240 },
+};
+
+static struct ieee80211_supported_band band_2ghz = {
+ .channels = &channel_2ghz,
+ .bitrates = bitrates_2ghz,
+ .band = NL80211_BAND_2GHZ,
+ .n_channels = 1,
+ .n_bitrates = ARRAY_SIZE(bitrates_2ghz),
+ .ht_cap = {
+ .ht_supported = true,
+ .cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
+ IEEE80211_HT_CAP_GRN_FLD |
+ IEEE80211_HT_CAP_SGI_20 |
+ IEEE80211_HT_CAP_SGI_40 |
+ IEEE80211_HT_CAP_DSSSCCK40,
+ .ampdu_factor = 0x3,
+ .ampdu_density = 0x6,
+ .mcs = {
+ .rx_mask = {0xff, 0xff},
+ .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
+ },
+ },
+};
+
+static struct ieee80211_channel channel_5ghz = {
+ .band = NL80211_BAND_5GHZ,
+ .center_freq = 5240,
+ .hw_value = 5240,
+ .max_power = 20,
+};
+
+static struct ieee80211_rate bitrates_5ghz[] = {
+ { .bitrate = 60 },
+ { .bitrate = 120 },
+ { .bitrate = 240 },
+};
+
+#define RX_MCS_MAP (IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 | \
+ IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 | \
+ IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 | \
+ IEEE80211_VHT_MCS_SUPPORT_0_9 << 6 | \
+ IEEE80211_VHT_MCS_SUPPORT_0_9 << 8 | \
+ IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 | \
+ IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 | \
+ IEEE80211_VHT_MCS_SUPPORT_0_9 << 14)
+
+#define TX_MCS_MAP (IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 | \
+ IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 | \
+ IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 | \
+ IEEE80211_VHT_MCS_SUPPORT_0_9 << 6 | \
+ IEEE80211_VHT_MCS_SUPPORT_0_9 << 8 | \
+ IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 | \
+ IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 | \
+ IEEE80211_VHT_MCS_SUPPORT_0_9 << 14)
+
+static struct ieee80211_supported_band band_5ghz = {
+ .channels = &channel_5ghz,
+ .bitrates = bitrates_5ghz,
+ .band = NL80211_BAND_5GHZ,
+ .n_channels = 1,
+ .n_bitrates = ARRAY_SIZE(bitrates_5ghz),
+ .ht_cap = {
+ .ht_supported = true,
+ .cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
+ IEEE80211_HT_CAP_GRN_FLD |
+ IEEE80211_HT_CAP_SGI_20 |
+ IEEE80211_HT_CAP_SGI_40 |
+ IEEE80211_HT_CAP_DSSSCCK40,
+ .ampdu_factor = 0x3,
+ .ampdu_density = 0x6,
+ .mcs = {
+ .rx_mask = {0xff, 0xff},
+ .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
+ },
+ },
+ .vht_cap = {
+ .vht_supported = true,
+ .cap = IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
+ IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
+ IEEE80211_VHT_CAP_RXLDPC |
+ IEEE80211_VHT_CAP_SHORT_GI_80 |
+ IEEE80211_VHT_CAP_SHORT_GI_160 |
+ IEEE80211_VHT_CAP_TXSTBC |
+ IEEE80211_VHT_CAP_RXSTBC_1 |
+ IEEE80211_VHT_CAP_RXSTBC_2 |
+ IEEE80211_VHT_CAP_RXSTBC_3 |
+ IEEE80211_VHT_CAP_RXSTBC_4 |
+ IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK,
+ .vht_mcs = {
+ .rx_mcs_map = cpu_to_le16(RX_MCS_MAP),
+ .tx_mcs_map = cpu_to_le16(TX_MCS_MAP),
+ }
+ },
+};
+
+/* Assigned at module init. Guaranteed locally-administered and unicast. */
+static u8 fake_router_bssid[ETH_ALEN] __ro_after_init = {};
+
+/* Called with the rtnl lock held. */
+static int virt_wifi_scan(struct wiphy *wiphy,
+ struct cfg80211_scan_request *request)
+{
+ struct virt_wifi_wiphy_priv *priv = wiphy_priv(wiphy);
+
+ wiphy_debug(wiphy, "scan\n");
+
+ if (priv->scan_request || priv->being_deleted)
+ return -EBUSY;
+
+ priv->scan_request = request;
+ schedule_delayed_work(&priv->scan_result, HZ * 2);
+ if (priv->network_simulation &&
+ priv->network_simulation->notify_scan_trigger)
+ priv->network_simulation->notify_scan_trigger(wiphy, request);
+
+ return 0;
+}
+
+/* Acquires and releases the rdev BSS lock. */
+static void virt_wifi_scan_result(struct work_struct *work)
+{
+ struct {
+ u8 tag;
+ u8 len;
+ u8 ssid[8];
+ } __packed ssid = {
+ .tag = WLAN_EID_SSID, .len = 8, .ssid = "VirtWifi",
+ };
+ struct cfg80211_bss *informed_bss;
+ struct virt_wifi_wiphy_priv *priv =
+ container_of(work, struct virt_wifi_wiphy_priv,
+ scan_result.work);
+ struct wiphy *wiphy = priv_to_wiphy(priv);
+ struct cfg80211_scan_info scan_info = { .aborted = false };
+ u64 tsf = div_u64(ktime_get_boot_ns(), 1000);
+
+ informed_bss = cfg80211_inform_bss(wiphy, &channel_5ghz,
+ CFG80211_BSS_FTYPE_PRESP,
+ fake_router_bssid, tsf,
+ WLAN_CAPABILITY_ESS, 0,
+ (void *)&ssid, sizeof(ssid),
+ DBM_TO_MBM(-50), GFP_KERNEL);
+ cfg80211_put_bss(wiphy, informed_bss);
+
+ if(priv->network_simulation &&
+ priv->network_simulation->generate_virt_scan_result) {
+ if(priv->network_simulation->generate_virt_scan_result(wiphy))
+ wiphy_err(wiphy, "Fail to generater the simulated scan result.\n");
+ }
+
+ /* Schedules work which acquires and releases the rtnl lock. */
+ cfg80211_scan_done(priv->scan_request, &scan_info);
+ priv->scan_request = NULL;
+}
+
+/* May acquire and release the rdev BSS lock. */
+static void virt_wifi_cancel_scan(struct wiphy *wiphy)
+{
+ struct virt_wifi_wiphy_priv *priv = wiphy_priv(wiphy);
+
+ cancel_delayed_work_sync(&priv->scan_result);
+ /* Clean up dangling callbacks if necessary. */
+ if (priv->scan_request) {
+ struct cfg80211_scan_info scan_info = { .aborted = true };
+ /* Schedules work which acquires and releases the rtnl lock. */
+ cfg80211_scan_done(priv->scan_request, &scan_info);
+ priv->scan_request = NULL;
+ }
+}
+
+struct virt_wifi_netdev_priv {
+ struct delayed_work connect;
+ struct net_device *lowerdev;
+ struct net_device *upperdev;
+ u32 tx_packets;
+ u32 tx_failed;
+ u8 connect_requested_bss[ETH_ALEN];
+ bool is_up;
+ bool is_connected;
+ bool being_deleted;
+};
+
+/* Called with the rtnl lock held. */
+static int virt_wifi_connect(struct wiphy *wiphy, struct net_device *netdev,
+ struct cfg80211_connect_params *sme)
+{
+ struct virt_wifi_netdev_priv *priv = netdev_priv(netdev);
+ bool could_schedule;
+
+ if (priv->being_deleted || !priv->is_up)
+ return -EBUSY;
+
+ could_schedule = schedule_delayed_work(&priv->connect, HZ * 2);
+ if (!could_schedule)
+ return -EBUSY;
+
+ if (sme->bssid)
+ ether_addr_copy(priv->connect_requested_bss, sme->bssid);
+ else
+ eth_zero_addr(priv->connect_requested_bss);
+
+ wiphy_debug(wiphy, "connect\n");
+
+ return 0;
+}
+
+/* Acquires and releases the rdev event lock. */
+static void virt_wifi_connect_complete(struct work_struct *work)
+{
+ struct virt_wifi_netdev_priv *priv =
+ container_of(work, struct virt_wifi_netdev_priv, connect.work);
+ u8 *requested_bss = priv->connect_requested_bss;
+ bool has_addr = !is_zero_ether_addr(requested_bss);
+ bool right_addr = ether_addr_equal(requested_bss, fake_router_bssid);
+ u16 status = WLAN_STATUS_SUCCESS;
+
+ if (!priv->is_up || (has_addr && !right_addr))
+ status = WLAN_STATUS_UNSPECIFIED_FAILURE;
+ else
+ priv->is_connected = true;
+
+ /* Schedules an event that acquires the rtnl lock. */
+ cfg80211_connect_result(priv->upperdev, requested_bss, NULL, 0, NULL, 0,
+ status, GFP_KERNEL);
+ netif_carrier_on(priv->upperdev);
+}
+
+/* May acquire and release the rdev event lock. */
+static void virt_wifi_cancel_connect(struct net_device *netdev)
+{
+ struct virt_wifi_netdev_priv *priv = netdev_priv(netdev);
+
+ /* If there is work pending, clean up dangling callbacks. */
+ if (cancel_delayed_work_sync(&priv->connect)) {
+ /* Schedules an event that acquires the rtnl lock. */
+ cfg80211_connect_result(priv->upperdev,
+ priv->connect_requested_bss, NULL, 0,
+ NULL, 0,
+ WLAN_STATUS_UNSPECIFIED_FAILURE,
+ GFP_KERNEL);
+ }
+}
+
+/* Called with the rtnl lock held. Acquires the rdev event lock. */
+static int virt_wifi_disconnect(struct wiphy *wiphy, struct net_device *netdev,
+ u16 reason_code)
+{
+ struct virt_wifi_netdev_priv *priv = netdev_priv(netdev);
+
+ if (priv->being_deleted)
+ return -EBUSY;
+
+ wiphy_debug(wiphy, "disconnect\n");
+ virt_wifi_cancel_connect(netdev);
+
+ cfg80211_disconnected(netdev, reason_code, NULL, 0, true, GFP_KERNEL);
+ priv->is_connected = false;
+ netif_carrier_off(netdev);
+
+ return 0;
+}
+
+/* Called with the rtnl lock held. */
+static int virt_wifi_get_station(struct wiphy *wiphy, struct net_device *dev,
+ const u8 *mac, struct station_info *sinfo)
+{
+ struct virt_wifi_netdev_priv *priv = netdev_priv(dev);
+
+ wiphy_debug(wiphy, "get_station\n");
+
+ if (!priv->is_connected || !ether_addr_equal(mac, fake_router_bssid))
+ return -ENOENT;
+
+ sinfo->filled = BIT_ULL(NL80211_STA_INFO_TX_PACKETS) |
+ BIT_ULL(NL80211_STA_INFO_TX_FAILED) |
+ BIT_ULL(NL80211_STA_INFO_SIGNAL) |
+ BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
+ sinfo->tx_packets = priv->tx_packets;
+ sinfo->tx_failed = priv->tx_failed;
+ /* For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_ */
+ sinfo->signal = -50;
+ sinfo->txrate = (struct rate_info) {
+ .legacy = 10, /* units are 100kbit/s */
+ };
+ return 0;
+}
+
+/* Called with the rtnl lock held. */
+static int virt_wifi_dump_station(struct wiphy *wiphy, struct net_device *dev,
+ int idx, u8 *mac, struct station_info *sinfo)
+{
+ struct virt_wifi_netdev_priv *priv = netdev_priv(dev);
+
+ wiphy_debug(wiphy, "dump_station\n");
+
+ if (idx != 0 || !priv->is_connected)
+ return -ENOENT;
+
+ ether_addr_copy(mac, fake_router_bssid);
+ return virt_wifi_get_station(wiphy, dev, fake_router_bssid, sinfo);
+}
+
+static const struct cfg80211_ops virt_wifi_cfg80211_ops = {
+ .scan = virt_wifi_scan,
+
+ .connect = virt_wifi_connect,
+ .disconnect = virt_wifi_disconnect,
+
+ .get_station = virt_wifi_get_station,
+ .dump_station = virt_wifi_dump_station,
+};
+
+/* Acquires and releases the rtnl lock. */
+static struct wiphy *virt_wifi_make_wiphy(void)
+{
+ struct wiphy *wiphy;
+ struct virt_wifi_wiphy_priv *priv;
+ int err;
+
+ wiphy = wiphy_new(&virt_wifi_cfg80211_ops, sizeof(*priv));
+
+ if (!wiphy)
+ return NULL;
+
+ wiphy->max_scan_ssids = 4;
+ wiphy->max_scan_ie_len = 1000;
+ wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
+
+ wiphy->bands[NL80211_BAND_2GHZ] = &band_2ghz;
+ wiphy->bands[NL80211_BAND_5GHZ] = &band_5ghz;
+ wiphy->bands[NL80211_BAND_60GHZ] = NULL;
+
+ wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
+
+ priv = wiphy_priv(wiphy);
+ priv->being_deleted = false;
+ priv->scan_request = NULL;
+ priv->network_simulation = NULL;
+
+ INIT_DELAYED_WORK(&priv->scan_result, virt_wifi_scan_result);
+
+ err = wiphy_register(wiphy);
+ if (err < 0) {
+ wiphy_free(wiphy);
+ return NULL;
+ }
+
+ return wiphy;
+}
+
+/* Acquires and releases the rtnl lock. */
+static void virt_wifi_destroy_wiphy(struct wiphy *wiphy)
+{
+ struct virt_wifi_wiphy_priv *priv;
+ WARN(!wiphy, "%s called with null wiphy", __func__);
+ if (!wiphy)
+ return;
+
+ priv = wiphy_priv(wiphy);
+ priv->being_deleted = true;
+ virt_wifi_cancel_scan(wiphy);
+
+ if (wiphy->registered)
+ wiphy_unregister(wiphy);
+ wiphy_free(wiphy);
+}
+
+/* Enters and exits a RCU-bh critical section. */
+static netdev_tx_t virt_wifi_start_xmit(struct sk_buff *skb,
+ struct net_device *dev)
+{
+ struct virt_wifi_netdev_priv *priv = netdev_priv(dev);
+
+ priv->tx_packets++;
+ if (!priv->is_connected) {
+ priv->tx_failed++;
+ return NET_XMIT_DROP;
+ }
+
+ skb->dev = priv->lowerdev;
+ return dev_queue_xmit(skb);
+}
+
+/* Called with rtnl lock held. */
+static int virt_wifi_net_device_open(struct net_device *dev)
+{
+ struct virt_wifi_netdev_priv *priv = netdev_priv(dev);
+ struct virt_wifi_wiphy_priv *w_priv;
+ priv->is_up = true;
+ w_priv = wiphy_priv(dev->ieee80211_ptr->wiphy);
+ if(w_priv->network_simulation &&
+ w_priv->network_simulation->notify_device_open)
+ w_priv->network_simulation->notify_device_open(dev);
+
+ return 0;
+}
+
+/* Called with rtnl lock held. */
+static int virt_wifi_net_device_stop(struct net_device *dev)
+{
+ struct virt_wifi_netdev_priv *n_priv = netdev_priv(dev);
+ struct virt_wifi_wiphy_priv *w_priv;
+
+ n_priv->is_up = false;
+
+ if (!dev->ieee80211_ptr)
+ return 0;
+ w_priv = wiphy_priv(dev->ieee80211_ptr->wiphy);
+
+ virt_wifi_cancel_scan(dev->ieee80211_ptr->wiphy);
+ virt_wifi_cancel_connect(dev);
+ netif_carrier_off(dev);
+
+ if (w_priv->network_simulation &&
+ w_priv->network_simulation->notify_device_stop)
+ w_priv->network_simulation->notify_device_stop(dev);
+
+ return 0;
+}
+
+static const struct net_device_ops virt_wifi_ops = {
+ .ndo_start_xmit = virt_wifi_start_xmit,
+ .ndo_open = virt_wifi_net_device_open,
+ .ndo_stop = virt_wifi_net_device_stop,
+};
+
+/* Invoked as part of rtnl lock release. */
+static void virt_wifi_net_device_destructor(struct net_device *dev)
+{
+ /* Delayed past dellink to allow nl80211 to react to the device being
+ * deleted.
+ */
+ kfree(dev->ieee80211_ptr);
+ dev->ieee80211_ptr = NULL;
+}
+
+/* No lock interaction. */
+static void virt_wifi_setup(struct net_device *dev)
+{
+ ether_setup(dev);
+ dev->netdev_ops = &virt_wifi_ops;
+ dev->needs_free_netdev = true;
+}
+
+/* Called in a RCU read critical section from netif_receive_skb */
+static rx_handler_result_t virt_wifi_rx_handler(struct sk_buff **pskb)
+{
+ struct sk_buff *skb = *pskb;
+ struct virt_wifi_netdev_priv *priv =
+ rcu_dereference(skb->dev->rx_handler_data);
+
+ if (!priv->is_connected)
+ return RX_HANDLER_PASS;
+
+ /* GFP_ATOMIC because this is a packet interrupt handler. */
+ skb = skb_share_check(skb, GFP_ATOMIC);
+ if (!skb) {
+ dev_err(&priv->upperdev->dev, "can't skb_share_check\n");
+ return RX_HANDLER_CONSUMED;
+ }
+
+ *pskb = skb;
+ skb->dev = priv->upperdev;
+ skb->pkt_type = PACKET_HOST;
+ return RX_HANDLER_ANOTHER;
+}
+
+/* Called with rtnl lock held. */
+static int virt_wifi_newlink(struct net *src_net, struct net_device *dev,
+ struct nlattr *tb[], struct nlattr *data[],
+ struct netlink_ext_ack *extack)
+{
+ struct virt_wifi_netdev_priv *priv = netdev_priv(dev);
+ int err;
+
+ if (!tb[IFLA_LINK])
+ return -EINVAL;
+
+ netif_carrier_off(dev);
+
+ priv->upperdev = dev;
+ priv->lowerdev = __dev_get_by_index(src_net,
+ nla_get_u32(tb[IFLA_LINK]));
+
+ if (!priv->lowerdev)
+ return -ENODEV;
+ if (!tb[IFLA_MTU])
+ dev->mtu = priv->lowerdev->mtu;
+ else if (dev->mtu > priv->lowerdev->mtu)
+ return -EINVAL;
+
+ err = netdev_rx_handler_register(priv->lowerdev, virt_wifi_rx_handler,
+ priv);
+ if (err) {
+ dev_err(&priv->lowerdev->dev,
+ "can't netdev_rx_handler_register: %d\n", err);
+ return err;
+ }
+
+ eth_hw_addr_inherit(dev, priv->lowerdev);
+ netif_stacked_transfer_operstate(priv->lowerdev, dev);
+
+ SET_NETDEV_DEV(dev, &priv->lowerdev->dev);
+ dev->ieee80211_ptr = kzalloc(sizeof(*dev->ieee80211_ptr), GFP_KERNEL);
+
+ if (!dev->ieee80211_ptr) {
+ err = -ENOMEM;
+ goto remove_handler;
+ }
+
+ dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION;
+ dev->ieee80211_ptr->wiphy = common_wiphy;
+
+ err = register_netdevice(dev);
+ if (err) {
+ dev_err(&priv->lowerdev->dev, "can't register_netdevice: %d\n",
+ err);
+ goto free_wireless_dev;
+ }
+
+ err = netdev_upper_dev_link(priv->lowerdev, dev, extack);
+ if (err) {
+ dev_err(&priv->lowerdev->dev, "can't netdev_upper_dev_link: %d\n",
+ err);
+ goto unregister_netdev;
+ }
+
+ dev->priv_destructor = virt_wifi_net_device_destructor;
+ priv->being_deleted = false;
+ priv->is_connected = false;
+ priv->is_up = false;
+ INIT_DELAYED_WORK(&priv->connect, virt_wifi_connect_complete);
+ __module_get(THIS_MODULE);
+
+ return 0;
+unregister_netdev:
+ unregister_netdevice(dev);
+free_wireless_dev:
+ kfree(dev->ieee80211_ptr);
+ dev->ieee80211_ptr = NULL;
+remove_handler:
+ netdev_rx_handler_unregister(priv->lowerdev);
+
+ return err;
+}
+
+/* Called with rtnl lock held. */
+static void virt_wifi_dellink(struct net_device *dev,
+ struct list_head *head)
+{
+ struct virt_wifi_netdev_priv *priv = netdev_priv(dev);
+
+ if (dev->ieee80211_ptr)
+ virt_wifi_cancel_scan(dev->ieee80211_ptr->wiphy);
+
+ priv->being_deleted = true;
+ virt_wifi_cancel_connect(dev);
+ netif_carrier_off(dev);
+
+ netdev_rx_handler_unregister(priv->lowerdev);
+ netdev_upper_dev_unlink(priv->lowerdev, dev);
+
+ unregister_netdevice_queue(dev, head);
+ module_put(THIS_MODULE);
+
+ /* Deleting the wiphy is handled in the module destructor. */
+}
+
+static struct rtnl_link_ops virt_wifi_link_ops = {
+ .kind = "virt_wifi",
+ .setup = virt_wifi_setup,
+ .newlink = virt_wifi_newlink,
+ .dellink = virt_wifi_dellink,
+ .priv_size = sizeof(struct virt_wifi_netdev_priv),
+};
+
+static bool netif_is_virt_wifi_dev(const struct net_device *dev)
+{
+ return rcu_access_pointer(dev->rx_handler) == virt_wifi_rx_handler;
+}
+
+static int virt_wifi_event(struct notifier_block *this, unsigned long event,
+ void *ptr)
+{
+ struct net_device *lower_dev = netdev_notifier_info_to_dev(ptr);
+ struct virt_wifi_netdev_priv *priv;
+ struct net_device *upper_dev;
+ LIST_HEAD(list_kill);
+
+ if (!netif_is_virt_wifi_dev(lower_dev))
+ return NOTIFY_DONE;
+
+ switch (event) {
+ case NETDEV_UNREGISTER:
+ priv = rtnl_dereference(lower_dev->rx_handler_data);
+ if (!priv)
+ return NOTIFY_DONE;
+
+ upper_dev = priv->upperdev;
+
+ upper_dev->rtnl_link_ops->dellink(upper_dev, &list_kill);
+ unregister_netdevice_many(&list_kill);
+ break;
+ }
+
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block virt_wifi_notifier = {
+ .notifier_call = virt_wifi_event,
+};
+
+/* Acquires and releases the rtnl lock. */
+static int __init virt_wifi_init_module(void)
+{
+ int err;
+
+ /* Guaranteed to be locallly-administered and not multicast. */
+ eth_random_addr(fake_router_bssid);
+
+ err = register_netdevice_notifier(&virt_wifi_notifier);
+ if (err)
+ return err;
+
+ err = -ENOMEM;
+ common_wiphy = virt_wifi_make_wiphy();
+ if (!common_wiphy)
+ goto notifier;
+
+ err = rtnl_link_register(&virt_wifi_link_ops);
+ if (err)
+ goto destroy_wiphy;
+
+ return 0;
+
+destroy_wiphy:
+ virt_wifi_destroy_wiphy(common_wiphy);
+notifier:
+ unregister_netdevice_notifier(&virt_wifi_notifier);
+ return err;
+}
+
+/* Acquires and releases the rtnl lock. */
+static void __exit virt_wifi_cleanup_module(void)
+{
+ /* Will delete any devices that depend on the wiphy. */
+ rtnl_link_unregister(&virt_wifi_link_ops);
+ virt_wifi_destroy_wiphy(common_wiphy);
+ unregister_netdevice_notifier(&virt_wifi_notifier);
+}
+
+int virt_wifi_register_network_simulation
+ (struct virt_wifi_network_simulation *ops)
+{
+ struct virt_wifi_wiphy_priv *priv = wiphy_priv(common_wiphy);
+ if (priv->network_simulation)
+ return -EEXIST;
+ priv->network_simulation = ops;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(virt_wifi_register_network_simulation);
+
+int virt_wifi_unregister_network_simulation(void)
+{
+ struct virt_wifi_wiphy_priv *priv = wiphy_priv(common_wiphy);
+ if(!priv->network_simulation)
+ return -ENODATA;
+ priv->network_simulation = NULL;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(virt_wifi_unregister_network_simulation);
+
+module_init(virt_wifi_init_module);
+module_exit(virt_wifi_cleanup_module);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Cody Schuffelen <schuffelen@google.com>");
+MODULE_DESCRIPTION("Driver for a wireless wrapper of ethernet devices");
+MODULE_ALIAS_RTNL_LINK("virt_wifi");
diff --git a/drivers/nvdimm/Makefile b/drivers/nvdimm/Makefile
index e884704..5816072 100644
--- a/drivers/nvdimm/Makefile
+++ b/drivers/nvdimm/Makefile
@@ -5,6 +5,7 @@
obj-$(CONFIG_ND_BLK) += nd_blk.o
obj-$(CONFIG_X86_PMEM_LEGACY) += nd_e820.o
obj-$(CONFIG_OF_PMEM) += of_pmem.o
+obj-$(CONFIG_VIRTIO_PMEM) += virtio_pmem.o nd_virtio.o
nd_pmem-y := pmem.o
diff --git a/drivers/nvdimm/blk.c b/drivers/nvdimm/blk.c
index db45c6b..62e9cb16 100644
--- a/drivers/nvdimm/blk.c
+++ b/drivers/nvdimm/blk.c
@@ -290,7 +290,7 @@ static int nsblk_attach_disk(struct nd_namespace_blk *nsblk)
}
set_capacity(disk, available_disk_size >> SECTOR_SHIFT);
- device_add_disk(dev, disk, NULL);
+ device_add_disk(dev, disk);
revalidate_disk(disk);
return 0;
}
diff --git a/drivers/nvdimm/btt.c b/drivers/nvdimm/btt.c
index b6823e6..853edc6 100644
--- a/drivers/nvdimm/btt.c
+++ b/drivers/nvdimm/btt.c
@@ -1565,7 +1565,7 @@ static int btt_blk_init(struct btt *btt)
}
}
set_capacity(btt->btt_disk, btt->nlba * btt->sector_size >> 9);
- device_add_disk(&btt->nd_btt->dev, btt->btt_disk, NULL);
+ device_add_disk(&btt->nd_btt->dev, btt->btt_disk);
btt->nd_btt->size = btt->nlba * (u64)btt->sector_size;
revalidate_disk(btt->btt_disk);
diff --git a/drivers/nvdimm/claim.c b/drivers/nvdimm/claim.c
index fb667bf..13510ba 100644
--- a/drivers/nvdimm/claim.c
+++ b/drivers/nvdimm/claim.c
@@ -263,7 +263,7 @@ static int nsio_rw_bytes(struct nd_namespace_common *ndns,
struct nd_namespace_io *nsio = to_nd_namespace_io(&ndns->dev);
unsigned int sz_align = ALIGN(size + (offset & (512 - 1)), 512);
sector_t sector = offset >> 9;
- int rc = 0;
+ int rc = 0, ret = 0;
if (unlikely(!size))
return 0;
@@ -301,7 +301,9 @@ static int nsio_rw_bytes(struct nd_namespace_common *ndns,
}
memcpy_flushcache(nsio->addr + offset, buf, size);
- nvdimm_flush(to_nd_region(ndns->dev.parent));
+ ret = nvdimm_flush(to_nd_region(ndns->dev.parent), NULL);
+ if (ret)
+ rc = ret;
return rc;
}
diff --git a/drivers/nvdimm/nd.h b/drivers/nvdimm/nd.h
index 01e194a..fbb01a7 100644
--- a/drivers/nvdimm/nd.h
+++ b/drivers/nvdimm/nd.h
@@ -163,6 +163,7 @@ struct nd_region {
struct badblocks bb;
struct nd_interleave_set *nd_set;
struct nd_percpu_lane __percpu *lane;
+ int (*flush)(struct nd_region *nd_region, struct bio *bio);
struct nd_mapping mapping[0];
};
diff --git a/drivers/nvdimm/nd_virtio.c b/drivers/nvdimm/nd_virtio.c
new file mode 100644
index 0000000..8645275
--- /dev/null
+++ b/drivers/nvdimm/nd_virtio.c
@@ -0,0 +1,125 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * virtio_pmem.c: Virtio pmem Driver
+ *
+ * Discovers persistent memory range information
+ * from host and provides a virtio based flushing
+ * interface.
+ */
+#include "virtio_pmem.h"
+#include "nd.h"
+
+ /* The interrupt handler */
+void virtio_pmem_host_ack(struct virtqueue *vq)
+{
+ struct virtio_pmem *vpmem = vq->vdev->priv;
+ struct virtio_pmem_request *req_data, *req_buf;
+ unsigned long flags;
+ unsigned int len;
+
+ spin_lock_irqsave(&vpmem->pmem_lock, flags);
+ while ((req_data = virtqueue_get_buf(vq, &len)) != NULL) {
+ req_data->done = true;
+ wake_up(&req_data->host_acked);
+
+ if (!list_empty(&vpmem->req_list)) {
+ req_buf = list_first_entry(&vpmem->req_list,
+ struct virtio_pmem_request, list);
+ req_buf->wq_buf_avail = true;
+ wake_up(&req_buf->wq_buf);
+ list_del(&req_buf->list);
+ }
+ }
+ spin_unlock_irqrestore(&vpmem->pmem_lock, flags);
+}
+EXPORT_SYMBOL_GPL(virtio_pmem_host_ack);
+
+ /* The request submission function */
+static int virtio_pmem_flush(struct nd_region *nd_region)
+{
+ struct virtio_device *vdev = nd_region->provider_data;
+ struct virtio_pmem *vpmem = vdev->priv;
+ struct virtio_pmem_request *req_data;
+ struct scatterlist *sgs[2], sg, ret;
+ unsigned long flags;
+ int err, err1;
+
+ might_sleep();
+ req_data = kmalloc(sizeof(*req_data), GFP_KERNEL);
+ if (!req_data)
+ return -ENOMEM;
+
+ req_data->done = false;
+ init_waitqueue_head(&req_data->host_acked);
+ init_waitqueue_head(&req_data->wq_buf);
+ INIT_LIST_HEAD(&req_data->list);
+ req_data->req.type = cpu_to_virtio32(vdev, VIRTIO_PMEM_REQ_TYPE_FLUSH);
+ sg_init_one(&sg, &req_data->req, sizeof(req_data->req));
+ sgs[0] = &sg;
+ sg_init_one(&ret, &req_data->resp.ret, sizeof(req_data->resp));
+ sgs[1] = &ret;
+
+ spin_lock_irqsave(&vpmem->pmem_lock, flags);
+ /*
+ * If virtqueue_add_sgs returns -ENOSPC then req_vq virtual
+ * queue does not have free descriptor. We add the request
+ * to req_list and wait for host_ack to wake us up when free
+ * slots are available.
+ */
+ while ((err = virtqueue_add_sgs(vpmem->req_vq, sgs, 1, 1, req_data,
+ GFP_ATOMIC)) == -ENOSPC) {
+
+ dev_info(&vdev->dev, "failed to send command to virtio pmem device, no free slots in the virtqueue\n");
+ req_data->wq_buf_avail = false;
+ list_add_tail(&req_data->list, &vpmem->req_list);
+ spin_unlock_irqrestore(&vpmem->pmem_lock, flags);
+
+ /* A host response results in "host_ack" getting called */
+ wait_event(req_data->wq_buf, req_data->wq_buf_avail);
+ spin_lock_irqsave(&vpmem->pmem_lock, flags);
+ }
+ err1 = virtqueue_kick(vpmem->req_vq);
+ spin_unlock_irqrestore(&vpmem->pmem_lock, flags);
+ /*
+ * virtqueue_add_sgs failed with error different than -ENOSPC, we can't
+ * do anything about that.
+ */
+ if (err || !err1) {
+ dev_info(&vdev->dev, "failed to send command to virtio pmem device\n");
+ err = -EIO;
+ } else {
+ /* A host repsonse results in "host_ack" getting called */
+ wait_event(req_data->host_acked, req_data->done);
+ err = virtio32_to_cpu(vdev, req_data->resp.ret);
+ }
+
+ kfree(req_data);
+ return err;
+};
+
+/* The asynchronous flush callback function */
+int async_pmem_flush(struct nd_region *nd_region, struct bio *bio)
+{
+ /*
+ * Create child bio for asynchronous flush and chain with
+ * parent bio. Otherwise directly call nd_region flush.
+ */
+ if (bio && bio->bi_iter.bi_sector != -1) {
+ struct bio *child = bio_alloc(GFP_ATOMIC, 0);
+
+ if (!child)
+ return -ENOMEM;
+ bio_copy_dev(child, bio);
+ child->bi_opf = REQ_PREFLUSH;
+ child->bi_iter.bi_sector = -1;
+ bio_chain(child, bio);
+ submit_bio(child);
+ return 0;
+ }
+ if (virtio_pmem_flush(nd_region))
+ return -EIO;
+
+ return 0;
+};
+EXPORT_SYMBOL_GPL(async_pmem_flush);
+MODULE_LICENSE("GPL");
diff --git a/drivers/nvdimm/of_pmem.c b/drivers/nvdimm/of_pmem.c
index 0a70183..6e5cbfd 100644
--- a/drivers/nvdimm/of_pmem.c
+++ b/drivers/nvdimm/of_pmem.c
@@ -42,7 +42,7 @@ static int of_pmem_region_probe(struct platform_device *pdev)
return -ENOMEM;
priv->bus_desc.attr_groups = bus_attr_groups;
- priv->bus_desc.provider_name = "of_pmem";
+ priv->bus_desc.provider_name = kstrdup(pdev->name, GFP_KERNEL);
priv->bus_desc.module = THIS_MODULE;
priv->bus_desc.of_node = np;
@@ -108,7 +108,6 @@ static struct platform_driver of_pmem_region_driver = {
.remove = of_pmem_region_remove,
.driver = {
.name = "of_pmem",
- .owner = THIS_MODULE,
.of_match_table = of_pmem_region_match,
},
};
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index d6f981f..18e1042 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -192,6 +192,7 @@ static blk_status_t pmem_do_bvec(struct pmem_device *pmem, struct page *page,
static blk_qc_t pmem_make_request(struct request_queue *q, struct bio *bio)
{
+ int ret = 0;
blk_status_t rc = 0;
bool do_acct;
unsigned long start;
@@ -201,7 +202,7 @@ static blk_qc_t pmem_make_request(struct request_queue *q, struct bio *bio)
struct nd_region *nd_region = to_region(pmem);
if (bio->bi_opf & REQ_PREFLUSH)
- nvdimm_flush(nd_region);
+ ret = nvdimm_flush(nd_region, bio);
do_acct = nd_iostat_start(bio, &start);
bio_for_each_segment(bvec, bio, iter) {
@@ -216,7 +217,10 @@ static blk_qc_t pmem_make_request(struct request_queue *q, struct bio *bio)
nd_iostat_end(bio, start);
if (bio->bi_opf & REQ_FUA)
- nvdimm_flush(nd_region);
+ ret = nvdimm_flush(nd_region, bio);
+
+ if (ret)
+ bio->bi_status = errno_to_blk_status(ret);
bio_endio(bio);
return BLK_QC_T_NONE;
@@ -475,11 +479,10 @@ static int pmem_attach_disk(struct device *dev,
}
dax_write_cache(dax_dev, nvdimm_has_cache(nd_region));
pmem->dax_dev = dax_dev;
-
gendev = disk_to_dev(disk);
gendev->groups = pmem_attribute_groups;
- device_add_disk(dev, disk, NULL);
+ device_add_disk(dev, disk);
if (devm_add_action_or_reset(dev, pmem_release_disk, pmem))
return -ENOMEM;
@@ -533,14 +536,14 @@ static int nd_pmem_remove(struct device *dev)
sysfs_put(pmem->bb_state);
pmem->bb_state = NULL;
}
- nvdimm_flush(to_nd_region(dev->parent));
+ nvdimm_flush(to_nd_region(dev->parent), NULL);
return 0;
}
static void nd_pmem_shutdown(struct device *dev)
{
- nvdimm_flush(to_nd_region(dev->parent));
+ nvdimm_flush(to_nd_region(dev->parent), NULL);
}
static void nd_pmem_notify(struct device *dev, enum nvdimm_event event)
diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c
index 609fc45..71cfdc3 100644
--- a/drivers/nvdimm/region_devs.c
+++ b/drivers/nvdimm/region_devs.c
@@ -290,7 +290,9 @@ static ssize_t deep_flush_store(struct device *dev, struct device_attribute *att
return rc;
if (!flush)
return -EINVAL;
- nvdimm_flush(nd_region);
+ rc = nvdimm_flush(nd_region, NULL);
+ if (rc)
+ return rc;
return len;
}
@@ -1076,6 +1078,11 @@ static struct nd_region *nd_region_create(struct nvdimm_bus *nvdimm_bus,
dev->of_node = ndr_desc->of_node;
nd_region->ndr_size = resource_size(ndr_desc->res);
nd_region->ndr_start = ndr_desc->res->start;
+ if (ndr_desc->flush)
+ nd_region->flush = ndr_desc->flush;
+ else
+ nd_region->flush = NULL;
+
nd_device_register(dev);
return nd_region;
@@ -1116,11 +1123,24 @@ struct nd_region *nvdimm_volatile_region_create(struct nvdimm_bus *nvdimm_bus,
}
EXPORT_SYMBOL_GPL(nvdimm_volatile_region_create);
+int nvdimm_flush(struct nd_region *nd_region, struct bio *bio)
+{
+ int rc = 0;
+
+ if (!nd_region->flush)
+ rc = generic_nvdimm_flush(nd_region);
+ else {
+ if (nd_region->flush(nd_region, bio))
+ rc = -EIO;
+ }
+
+ return rc;
+}
/**
* nvdimm_flush - flush any posted write queues between the cpu and pmem media
* @nd_region: blk or interleaved pmem region
*/
-void nvdimm_flush(struct nd_region *nd_region)
+int generic_nvdimm_flush(struct nd_region *nd_region)
{
struct nd_region_data *ndrd = dev_get_drvdata(&nd_region->dev);
int i, idx;
@@ -1144,6 +1164,8 @@ void nvdimm_flush(struct nd_region *nd_region)
if (ndrd_get_flush_wpq(ndrd, i, 0))
writeq(1, ndrd_get_flush_wpq(ndrd, i, idx));
wmb();
+
+ return 0;
}
EXPORT_SYMBOL_GPL(nvdimm_flush);
diff --git a/drivers/nvdimm/virtio_pmem.c b/drivers/nvdimm/virtio_pmem.c
new file mode 100644
index 0000000..5e3d07b
--- /dev/null
+++ b/drivers/nvdimm/virtio_pmem.c
@@ -0,0 +1,122 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * virtio_pmem.c: Virtio pmem Driver
+ *
+ * Discovers persistent memory range information
+ * from host and registers the virtual pmem device
+ * with libnvdimm core.
+ */
+#include "virtio_pmem.h"
+#include "nd.h"
+
+static struct virtio_device_id id_table[] = {
+ { VIRTIO_ID_PMEM, VIRTIO_DEV_ANY_ID },
+ { 0 },
+};
+
+ /* Initialize virt queue */
+static int init_vq(struct virtio_pmem *vpmem)
+{
+ /* single vq */
+ vpmem->req_vq = virtio_find_single_vq(vpmem->vdev,
+ virtio_pmem_host_ack, "flush_queue");
+ if (IS_ERR(vpmem->req_vq))
+ return PTR_ERR(vpmem->req_vq);
+
+ spin_lock_init(&vpmem->pmem_lock);
+ INIT_LIST_HEAD(&vpmem->req_list);
+
+ return 0;
+};
+
+static int virtio_pmem_probe(struct virtio_device *vdev)
+{
+ struct nd_region_desc ndr_desc = {};
+ int nid = dev_to_node(&vdev->dev);
+ struct nd_region *nd_region;
+ struct virtio_pmem *vpmem;
+ struct resource res;
+ int err = 0;
+
+ if (!vdev->config->get) {
+ dev_err(&vdev->dev, "%s failure: config access disabled\n",
+ __func__);
+ return -EINVAL;
+ }
+
+ vpmem = devm_kzalloc(&vdev->dev, sizeof(*vpmem), GFP_KERNEL);
+ if (!vpmem) {
+ err = -ENOMEM;
+ goto out_err;
+ }
+
+ vpmem->vdev = vdev;
+ vdev->priv = vpmem;
+ err = init_vq(vpmem);
+ if (err) {
+ dev_err(&vdev->dev, "failed to initialize virtio pmem vq's\n");
+ goto out_err;
+ }
+
+ virtio_cread(vpmem->vdev, struct virtio_pmem_config,
+ start, &vpmem->start);
+ virtio_cread(vpmem->vdev, struct virtio_pmem_config,
+ size, &vpmem->size);
+
+ res.start = vpmem->start;
+ res.end = vpmem->start + vpmem->size - 1;
+ vpmem->nd_desc.provider_name = "virtio-pmem";
+ vpmem->nd_desc.module = THIS_MODULE;
+
+ vpmem->nvdimm_bus = nvdimm_bus_register(&vdev->dev,
+ &vpmem->nd_desc);
+ if (!vpmem->nvdimm_bus) {
+ dev_err(&vdev->dev, "failed to register device with nvdimm_bus\n");
+ err = -ENXIO;
+ goto out_vq;
+ }
+
+ dev_set_drvdata(&vdev->dev, vpmem->nvdimm_bus);
+
+ ndr_desc.res = &res;
+ ndr_desc.numa_node = nid;
+ ndr_desc.flush = async_pmem_flush;
+ set_bit(ND_REGION_PAGEMAP, &ndr_desc.flags);
+ set_bit(ND_REGION_ASYNC, &ndr_desc.flags);
+ nd_region = nvdimm_pmem_region_create(vpmem->nvdimm_bus, &ndr_desc);
+ if (!nd_region) {
+ dev_err(&vdev->dev, "failed to create nvdimm region\n");
+ err = -ENXIO;
+ goto out_nd;
+ }
+ nd_region->provider_data = dev_to_virtio(nd_region->dev.parent->parent);
+ return 0;
+out_nd:
+ nvdimm_bus_unregister(vpmem->nvdimm_bus);
+out_vq:
+ vdev->config->del_vqs(vdev);
+out_err:
+ return err;
+}
+
+static void virtio_pmem_remove(struct virtio_device *vdev)
+{
+ struct nvdimm_bus *nvdimm_bus = dev_get_drvdata(&vdev->dev);
+
+ nvdimm_bus_unregister(nvdimm_bus);
+ vdev->config->del_vqs(vdev);
+ vdev->config->reset(vdev);
+}
+
+static struct virtio_driver virtio_pmem_driver = {
+ .driver.name = KBUILD_MODNAME,
+ .driver.owner = THIS_MODULE,
+ .id_table = id_table,
+ .probe = virtio_pmem_probe,
+ .remove = virtio_pmem_remove,
+};
+
+module_virtio_driver(virtio_pmem_driver);
+MODULE_DEVICE_TABLE(virtio, id_table);
+MODULE_DESCRIPTION("Virtio pmem driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/nvdimm/virtio_pmem.h b/drivers/nvdimm/virtio_pmem.h
new file mode 100644
index 0000000..0dddefe
--- /dev/null
+++ b/drivers/nvdimm/virtio_pmem.h
@@ -0,0 +1,55 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * virtio_pmem.h: virtio pmem Driver
+ *
+ * Discovers persistent memory range information
+ * from host and provides a virtio based flushing
+ * interface.
+ **/
+
+#ifndef _LINUX_VIRTIO_PMEM_H
+#define _LINUX_VIRTIO_PMEM_H
+
+#include <linux/module.h>
+#include <uapi/linux/virtio_pmem.h>
+#include <linux/libnvdimm.h>
+#include <linux/spinlock.h>
+
+struct virtio_pmem_request {
+ struct virtio_pmem_req req;
+ struct virtio_pmem_resp resp;
+
+ /* Wait queue to process deferred work after ack from host */
+ wait_queue_head_t host_acked;
+ bool done;
+
+ /* Wait queue to process deferred work after virt queue buffer avail */
+ wait_queue_head_t wq_buf;
+ bool wq_buf_avail;
+ struct list_head list;
+};
+
+struct virtio_pmem {
+ struct virtio_device *vdev;
+
+ /* Virtio pmem request queue */
+ struct virtqueue *req_vq;
+
+ /* nvdimm bus registers virtio pmem device */
+ struct nvdimm_bus *nvdimm_bus;
+ struct nvdimm_bus_descriptor nd_desc;
+
+ /* List to store deferred work if virtqueue is full */
+ struct list_head req_list;
+
+ /* Synchronize virtqueue data */
+ spinlock_t pmem_lock;
+
+ /* Memory region information */
+ __u64 start;
+ __u64 size;
+};
+
+void virtio_pmem_host_ack(struct virtqueue *vq);
+int async_pmem_flush(struct nd_region *nd_region, struct bio *bio);
+#endif
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index e64310f..5d92f85 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -2843,14 +2843,6 @@ const struct attribute_group nvme_ns_id_attr_group = {
.is_visible = nvme_ns_id_attrs_are_visible,
};
-const struct attribute_group *nvme_ns_id_attr_groups[] = {
- &nvme_ns_id_attr_group,
-#ifdef CONFIG_NVM
- &nvme_nvm_attr_group,
-#endif
- NULL,
-};
-
#define nvme_show_str_function(field) \
static ssize_t field##_show(struct device *dev, \
struct device_attribute *attr, char *buf) \
@@ -3220,7 +3212,14 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid)
nvme_get_ctrl(ctrl);
- device_add_disk(ctrl->device, ns->disk, nvme_ns_id_attr_groups);
+ device_add_disk(ctrl->device, ns->disk);
+ if (sysfs_create_group(&disk_to_dev(ns->disk)->kobj,
+ &nvme_ns_id_attr_group))
+ pr_warn("%s: failed to create sysfs group for identification\n",
+ ns->disk->disk_name);
+ if (ns->ndev && nvme_nvm_register_sysfs(ns))
+ pr_warn("%s: failed to register lightnvm sysfs group for identification\n",
+ ns->disk->disk_name);
nvme_mpath_add_disk(ns, id);
nvme_fault_inject_init(ns);
@@ -3254,6 +3253,10 @@ static void nvme_ns_remove(struct nvme_ns *ns)
synchronize_srcu(&ns->head->srcu); /* wait for concurrent submissions */
if (ns->disk && ns->disk->flags & GENHD_FL_UP) {
+ sysfs_remove_group(&disk_to_dev(ns->disk)->kobj,
+ &nvme_ns_id_attr_group);
+ if (ns->ndev)
+ nvme_nvm_unregister_sysfs(ns);
del_gendisk(ns->disk);
blk_cleanup_queue(ns->queue);
if (blk_get_integrity(ns->disk))
diff --git a/drivers/nvme/host/lightnvm.c b/drivers/nvme/host/lightnvm.c
index d10257b..a69553e 100644
--- a/drivers/nvme/host/lightnvm.c
+++ b/drivers/nvme/host/lightnvm.c
@@ -1193,6 +1193,42 @@ static NVM_DEV_ATTR_12_RO(multiplane_modes);
static NVM_DEV_ATTR_12_RO(media_capabilities);
static NVM_DEV_ATTR_12_RO(max_phys_secs);
+static struct attribute *nvm_dev_attrs_12[] = {
+ &dev_attr_version.attr,
+ &dev_attr_capabilities.attr,
+
+ &dev_attr_vendor_opcode.attr,
+ &dev_attr_device_mode.attr,
+ &dev_attr_media_manager.attr,
+ &dev_attr_ppa_format.attr,
+ &dev_attr_media_type.attr,
+ &dev_attr_flash_media_type.attr,
+ &dev_attr_num_channels.attr,
+ &dev_attr_num_luns.attr,
+ &dev_attr_num_planes.attr,
+ &dev_attr_num_blocks.attr,
+ &dev_attr_num_pages.attr,
+ &dev_attr_page_size.attr,
+ &dev_attr_hw_sector_size.attr,
+ &dev_attr_oob_sector_size.attr,
+ &dev_attr_read_typ.attr,
+ &dev_attr_read_max.attr,
+ &dev_attr_prog_typ.attr,
+ &dev_attr_prog_max.attr,
+ &dev_attr_erase_typ.attr,
+ &dev_attr_erase_max.attr,
+ &dev_attr_multiplane_modes.attr,
+ &dev_attr_media_capabilities.attr,
+ &dev_attr_max_phys_secs.attr,
+
+ NULL,
+};
+
+static const struct attribute_group nvm_dev_attr_group_12 = {
+ .name = "lightnvm",
+ .attrs = nvm_dev_attrs_12,
+};
+
/* 2.0 values */
static NVM_DEV_ATTR_20_RO(groups);
static NVM_DEV_ATTR_20_RO(punits);
@@ -1208,37 +1244,10 @@ static NVM_DEV_ATTR_20_RO(write_max);
static NVM_DEV_ATTR_20_RO(reset_typ);
static NVM_DEV_ATTR_20_RO(reset_max);
-static struct attribute *nvm_dev_attrs[] = {
- /* version agnostic attrs */
+static struct attribute *nvm_dev_attrs_20[] = {
&dev_attr_version.attr,
&dev_attr_capabilities.attr,
- &dev_attr_read_typ.attr,
- &dev_attr_read_max.attr,
- /* 1.2 attrs */
- &dev_attr_vendor_opcode.attr,
- &dev_attr_device_mode.attr,
- &dev_attr_media_manager.attr,
- &dev_attr_ppa_format.attr,
- &dev_attr_media_type.attr,
- &dev_attr_flash_media_type.attr,
- &dev_attr_num_channels.attr,
- &dev_attr_num_luns.attr,
- &dev_attr_num_planes.attr,
- &dev_attr_num_blocks.attr,
- &dev_attr_num_pages.attr,
- &dev_attr_page_size.attr,
- &dev_attr_hw_sector_size.attr,
- &dev_attr_oob_sector_size.attr,
- &dev_attr_prog_typ.attr,
- &dev_attr_prog_max.attr,
- &dev_attr_erase_typ.attr,
- &dev_attr_erase_max.attr,
- &dev_attr_multiplane_modes.attr,
- &dev_attr_media_capabilities.attr,
- &dev_attr_max_phys_secs.attr,
-
- /* 2.0 attrs */
&dev_attr_groups.attr,
&dev_attr_punits.attr,
&dev_attr_chunks.attr,
@@ -1249,6 +1258,8 @@ static struct attribute *nvm_dev_attrs[] = {
&dev_attr_maxocpu.attr,
&dev_attr_mw_cunits.attr,
+ &dev_attr_read_typ.attr,
+ &dev_attr_read_max.attr,
&dev_attr_write_typ.attr,
&dev_attr_write_max.attr,
&dev_attr_reset_typ.attr,
@@ -1257,38 +1268,44 @@ static struct attribute *nvm_dev_attrs[] = {
NULL,
};
-static umode_t nvm_dev_attrs_visible(struct kobject *kobj,
- struct attribute *attr, int index)
+static const struct attribute_group nvm_dev_attr_group_20 = {
+ .name = "lightnvm",
+ .attrs = nvm_dev_attrs_20,
+};
+
+int nvme_nvm_register_sysfs(struct nvme_ns *ns)
{
- struct device *dev = container_of(kobj, struct device, kobj);
- struct gendisk *disk = dev_to_disk(dev);
- struct nvme_ns *ns = disk->private_data;
struct nvm_dev *ndev = ns->ndev;
- struct device_attribute *dev_attr =
- container_of(attr, typeof(*dev_attr), attr);
+ struct nvm_geo *geo = &ndev->geo;
if (!ndev)
- return 0;
+ return -EINVAL;
- if (dev_attr->show == nvm_dev_attr_show)
- return attr->mode;
-
- switch (ndev->geo.major_ver_id) {
+ switch (geo->major_ver_id) {
case 1:
- if (dev_attr->show == nvm_dev_attr_show_12)
- return attr->mode;
- break;
+ return sysfs_create_group(&disk_to_dev(ns->disk)->kobj,
+ &nvm_dev_attr_group_12);
case 2:
- if (dev_attr->show == nvm_dev_attr_show_20)
- return attr->mode;
- break;
+ return sysfs_create_group(&disk_to_dev(ns->disk)->kobj,
+ &nvm_dev_attr_group_20);
}
- return 0;
+ return -EINVAL;
}
-const struct attribute_group nvme_nvm_attr_group = {
- .name = "lightnvm",
- .attrs = nvm_dev_attrs,
- .is_visible = nvm_dev_attrs_visible,
-};
+void nvme_nvm_unregister_sysfs(struct nvme_ns *ns)
+{
+ struct nvm_dev *ndev = ns->ndev;
+ struct nvm_geo *geo = &ndev->geo;
+
+ switch (geo->major_ver_id) {
+ case 1:
+ sysfs_remove_group(&disk_to_dev(ns->disk)->kobj,
+ &nvm_dev_attr_group_12);
+ break;
+ case 2:
+ sysfs_remove_group(&disk_to_dev(ns->disk)->kobj,
+ &nvm_dev_attr_group_20);
+ break;
+ }
+}
diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c
index 64f699a..03aa8bd 100644
--- a/drivers/nvme/host/multipath.c
+++ b/drivers/nvme/host/multipath.c
@@ -313,9 +313,13 @@ static void nvme_mpath_set_live(struct nvme_ns *ns)
if (!head->disk)
return;
- if (!(head->disk->flags & GENHD_FL_UP))
- device_add_disk(&head->subsys->dev, head->disk,
- nvme_ns_id_attr_groups);
+ if (!(head->disk->flags & GENHD_FL_UP)) {
+ device_add_disk(&head->subsys->dev, head->disk);
+ if (sysfs_create_group(&disk_to_dev(head->disk)->kobj,
+ &nvme_ns_id_attr_group))
+ dev_warn(&head->subsys->dev,
+ "failed to create id group.\n");
+ }
synchronize_srcu(&ns->head->srcu);
kblockd_schedule_work(&ns->head->requeue_work);
@@ -541,8 +545,11 @@ void nvme_mpath_remove_disk(struct nvme_ns_head *head)
{
if (!head->disk)
return;
- if (head->disk->flags & GENHD_FL_UP)
+ if (head->disk->flags & GENHD_FL_UP) {
+ sysfs_remove_group(&disk_to_dev(head->disk)->kobj,
+ &nvme_ns_id_attr_group);
del_gendisk(head->disk);
+ }
blk_set_queue_dying(head->disk->queue);
/* make sure all pending bios are cleaned up */
kblockd_schedule_work(&head->requeue_work);
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 2769755..9c2e7a1 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -464,7 +464,7 @@ int nvme_delete_ctrl_sync(struct nvme_ctrl *ctrl);
int nvme_get_log(struct nvme_ctrl *ctrl, u32 nsid, u8 log_page, u8 lsp,
void *log, size_t size, u64 offset);
-extern const struct attribute_group *nvme_ns_id_attr_groups[];
+extern const struct attribute_group nvme_ns_id_attr_group;
extern const struct block_device_operations nvme_ns_head_ops;
#ifdef CONFIG_NVME_MULTIPATH
@@ -589,7 +589,8 @@ static inline void nvme_mpath_update_disk_size(struct gendisk *disk)
void nvme_nvm_update_nvm_info(struct nvme_ns *ns);
int nvme_nvm_register(struct nvme_ns *ns, char *disk_name, int node);
void nvme_nvm_unregister(struct nvme_ns *ns);
-extern const struct attribute_group nvme_nvm_attr_group;
+int nvme_nvm_register_sysfs(struct nvme_ns *ns);
+void nvme_nvm_unregister_sysfs(struct nvme_ns *ns);
int nvme_nvm_ioctl(struct nvme_ns *ns, unsigned int cmd, unsigned long arg);
#else
static inline void nvme_nvm_update_nvm_info(struct nvme_ns *ns) {};
@@ -600,6 +601,11 @@ static inline int nvme_nvm_register(struct nvme_ns *ns, char *disk_name,
}
static inline void nvme_nvm_unregister(struct nvme_ns *ns) {};
+static inline int nvme_nvm_register_sysfs(struct nvme_ns *ns)
+{
+ return 0;
+}
+static inline void nvme_nvm_unregister_sysfs(struct nvme_ns *ns) {};
static inline int nvme_nvm_ioctl(struct nvme_ns *ns, unsigned int cmd,
unsigned long arg)
{
diff --git a/drivers/nvmem/Kconfig b/drivers/nvmem/Kconfig
index 0a7a470e..bd881c4 100644
--- a/drivers/nvmem/Kconfig
+++ b/drivers/nvmem/Kconfig
@@ -13,6 +13,16 @@
if NVMEM
+config NVMEM_SYSFS
+ bool "/sys/bus/nvmem/devices/*/nvmem (sysfs interface)"
+ depends on SYSFS
+ default y
+ help
+ Say Y here to add a sysfs interface for NVMEM.
+
+ This interface is mostly used by userspace applications to
+ read/write directly into nvmem.
+
config NVMEM_IMX_IIM
tristate "i.MX IC Identification Module support"
depends on ARCH_MXC || COMPILE_TEST
diff --git a/drivers/nvmem/Makefile b/drivers/nvmem/Makefile
index 4e8c616..1847ec1 100644
--- a/drivers/nvmem/Makefile
+++ b/drivers/nvmem/Makefile
@@ -6,6 +6,9 @@
obj-$(CONFIG_NVMEM) += nvmem_core.o
nvmem_core-y := core.o
+obj-$(CONFIG_NVMEM_SYSFS) += nvmem_sysfs.o
+nvmem_sysfs-y := nvmem-sysfs.o
+
# Devices
obj-$(CONFIG_NVMEM_BCM_OCOTP) += nvmem-bcm-ocotp.o
nvmem-bcm-ocotp-y := bcm-ocotp.o
diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index 30c0407..f40ef8e 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -19,31 +19,14 @@
#include <linux/fs.h>
#include <linux/idr.h>
#include <linux/init.h>
+#include <linux/kref.h>
#include <linux/module.h>
#include <linux/nvmem-consumer.h>
#include <linux/nvmem-provider.h>
#include <linux/of.h>
#include <linux/slab.h>
-struct nvmem_device {
- const char *name;
- struct module *owner;
- struct device dev;
- int stride;
- int word_size;
- int id;
- int users;
- size_t size;
- bool read_only;
- int flags;
- struct bin_attribute eeprom;
- struct device *base_dev;
- nvmem_reg_read_t reg_read;
- nvmem_reg_write_t reg_write;
- void *priv;
-};
-
-#define FLAG_COMPAT BIT(0)
+#include "nvmem.h"
struct nvmem_cell {
const char *name;
@@ -51,6 +34,7 @@ struct nvmem_cell {
int bytes;
int bit_offset;
int nbits;
+ struct device_node *np;
struct nvmem_device *nvmem;
struct list_head node;
};
@@ -58,14 +42,9 @@ struct nvmem_cell {
static DEFINE_MUTEX(nvmem_mutex);
static DEFINE_IDA(nvmem_ida);
-static LIST_HEAD(nvmem_cells);
-static DEFINE_MUTEX(nvmem_cells_mutex);
+static DEFINE_MUTEX(nvmem_cell_mutex);
+static LIST_HEAD(nvmem_cell_tables);
-#ifdef CONFIG_DEBUG_LOCK_ALLOC
-static struct lock_class_key eeprom_lock_key;
-#endif
-
-#define to_nvmem_device(d) container_of(d, struct nvmem_device, dev)
static int nvmem_reg_read(struct nvmem_device *nvmem, unsigned int offset,
void *val, size_t bytes)
{
@@ -84,168 +63,6 @@ static int nvmem_reg_write(struct nvmem_device *nvmem, unsigned int offset,
return -EINVAL;
}
-static ssize_t bin_attr_nvmem_read(struct file *filp, struct kobject *kobj,
- struct bin_attribute *attr,
- char *buf, loff_t pos, size_t count)
-{
- struct device *dev;
- struct nvmem_device *nvmem;
- int rc;
-
- if (attr->private)
- dev = attr->private;
- else
- dev = container_of(kobj, struct device, kobj);
- nvmem = to_nvmem_device(dev);
-
- /* Stop the user from reading */
- if (pos >= nvmem->size)
- return 0;
-
- if (count < nvmem->word_size)
- return -EINVAL;
-
- if (pos + count > nvmem->size)
- count = nvmem->size - pos;
-
- count = round_down(count, nvmem->word_size);
-
- rc = nvmem_reg_read(nvmem, pos, buf, count);
-
- if (rc)
- return rc;
-
- return count;
-}
-
-static ssize_t bin_attr_nvmem_write(struct file *filp, struct kobject *kobj,
- struct bin_attribute *attr,
- char *buf, loff_t pos, size_t count)
-{
- struct device *dev;
- struct nvmem_device *nvmem;
- int rc;
-
- if (attr->private)
- dev = attr->private;
- else
- dev = container_of(kobj, struct device, kobj);
- nvmem = to_nvmem_device(dev);
-
- /* Stop the user from writing */
- if (pos >= nvmem->size)
- return -EFBIG;
-
- if (count < nvmem->word_size)
- return -EINVAL;
-
- if (pos + count > nvmem->size)
- count = nvmem->size - pos;
-
- count = round_down(count, nvmem->word_size);
-
- rc = nvmem_reg_write(nvmem, pos, buf, count);
-
- if (rc)
- return rc;
-
- return count;
-}
-
-/* default read/write permissions */
-static struct bin_attribute bin_attr_rw_nvmem = {
- .attr = {
- .name = "nvmem",
- .mode = S_IWUSR | S_IRUGO,
- },
- .read = bin_attr_nvmem_read,
- .write = bin_attr_nvmem_write,
-};
-
-static struct bin_attribute *nvmem_bin_rw_attributes[] = {
- &bin_attr_rw_nvmem,
- NULL,
-};
-
-static const struct attribute_group nvmem_bin_rw_group = {
- .bin_attrs = nvmem_bin_rw_attributes,
-};
-
-static const struct attribute_group *nvmem_rw_dev_groups[] = {
- &nvmem_bin_rw_group,
- NULL,
-};
-
-/* read only permission */
-static struct bin_attribute bin_attr_ro_nvmem = {
- .attr = {
- .name = "nvmem",
- .mode = S_IRUGO,
- },
- .read = bin_attr_nvmem_read,
-};
-
-static struct bin_attribute *nvmem_bin_ro_attributes[] = {
- &bin_attr_ro_nvmem,
- NULL,
-};
-
-static const struct attribute_group nvmem_bin_ro_group = {
- .bin_attrs = nvmem_bin_ro_attributes,
-};
-
-static const struct attribute_group *nvmem_ro_dev_groups[] = {
- &nvmem_bin_ro_group,
- NULL,
-};
-
-/* default read/write permissions, root only */
-static struct bin_attribute bin_attr_rw_root_nvmem = {
- .attr = {
- .name = "nvmem",
- .mode = S_IWUSR | S_IRUSR,
- },
- .read = bin_attr_nvmem_read,
- .write = bin_attr_nvmem_write,
-};
-
-static struct bin_attribute *nvmem_bin_rw_root_attributes[] = {
- &bin_attr_rw_root_nvmem,
- NULL,
-};
-
-static const struct attribute_group nvmem_bin_rw_root_group = {
- .bin_attrs = nvmem_bin_rw_root_attributes,
-};
-
-static const struct attribute_group *nvmem_rw_root_dev_groups[] = {
- &nvmem_bin_rw_root_group,
- NULL,
-};
-
-/* read only permission, root only */
-static struct bin_attribute bin_attr_ro_root_nvmem = {
- .attr = {
- .name = "nvmem",
- .mode = S_IRUSR,
- },
- .read = bin_attr_nvmem_read,
-};
-
-static struct bin_attribute *nvmem_bin_ro_root_attributes[] = {
- &bin_attr_ro_root_nvmem,
- NULL,
-};
-
-static const struct attribute_group nvmem_bin_ro_root_group = {
- .bin_attrs = nvmem_bin_ro_root_attributes,
-};
-
-static const struct attribute_group *nvmem_ro_root_dev_groups[] = {
- &nvmem_bin_ro_root_group,
- NULL,
-};
-
static void nvmem_release(struct device *dev)
{
struct nvmem_device *nvmem = to_nvmem_device(dev);
@@ -282,48 +99,28 @@ static struct nvmem_device *of_nvmem_find(struct device_node *nvmem_np)
return to_nvmem_device(d);
}
-static struct nvmem_cell *nvmem_find_cell(const char *cell_id)
-{
- struct nvmem_cell *p;
-
- mutex_lock(&nvmem_cells_mutex);
-
- list_for_each_entry(p, &nvmem_cells, node)
- if (!strcmp(p->name, cell_id)) {
- mutex_unlock(&nvmem_cells_mutex);
- return p;
- }
-
- mutex_unlock(&nvmem_cells_mutex);
-
- return NULL;
-}
-
static void nvmem_cell_drop(struct nvmem_cell *cell)
{
- mutex_lock(&nvmem_cells_mutex);
+ mutex_lock(&nvmem_mutex);
list_del(&cell->node);
- mutex_unlock(&nvmem_cells_mutex);
+ mutex_unlock(&nvmem_mutex);
+ of_node_put(cell->np);
kfree(cell);
}
static void nvmem_device_remove_all_cells(const struct nvmem_device *nvmem)
{
- struct nvmem_cell *cell;
- struct list_head *p, *n;
+ struct nvmem_cell *cell, *p;
- list_for_each_safe(p, n, &nvmem_cells) {
- cell = list_entry(p, struct nvmem_cell, node);
- if (cell->nvmem == nvmem)
- nvmem_cell_drop(cell);
- }
+ list_for_each_entry_safe(cell, p, &nvmem->cells, node)
+ nvmem_cell_drop(cell);
}
static void nvmem_cell_add(struct nvmem_cell *cell)
{
- mutex_lock(&nvmem_cells_mutex);
- list_add_tail(&cell->node, &nvmem_cells);
- mutex_unlock(&nvmem_cells_mutex);
+ mutex_lock(&nvmem_mutex);
+ list_add_tail(&cell->node, &cell->nvmem->cells);
+ mutex_unlock(&nvmem_mutex);
}
static int nvmem_cell_info_to_nvmem_cell(struct nvmem_device *nvmem,
@@ -402,46 +199,91 @@ int nvmem_add_cells(struct nvmem_device *nvmem,
}
EXPORT_SYMBOL_GPL(nvmem_add_cells);
-/*
- * nvmem_setup_compat() - Create an additional binary entry in
- * drivers sys directory, to be backwards compatible with the older
- * drivers/misc/eeprom drivers.
- */
-static int nvmem_setup_compat(struct nvmem_device *nvmem,
- const struct nvmem_config *config)
+static int nvmem_add_cells_from_table(struct nvmem_device *nvmem)
{
- int rval;
+ const struct nvmem_cell_info *info;
+ struct nvmem_cell_table *table;
+ struct nvmem_cell *cell;
+ int rval = 0, i;
- if (!config->base_dev)
- return -EINVAL;
+ mutex_lock(&nvmem_cell_mutex);
+ list_for_each_entry(table, &nvmem_cell_tables, node) {
+ if (strcmp(nvmem_dev_name(nvmem), table->nvmem_name) == 0) {
+ for (i = 0; i < table->ncells; i++) {
+ info = &table->cells[i];
- if (nvmem->read_only) {
- if (config->root_only)
- nvmem->eeprom = bin_attr_ro_root_nvmem;
- else
- nvmem->eeprom = bin_attr_ro_nvmem;
- } else {
- if (config->root_only)
- nvmem->eeprom = bin_attr_rw_root_nvmem;
- else
- nvmem->eeprom = bin_attr_rw_nvmem;
- }
- nvmem->eeprom.attr.name = "eeprom";
- nvmem->eeprom.size = nvmem->size;
-#ifdef CONFIG_DEBUG_LOCK_ALLOC
- nvmem->eeprom.attr.key = &eeprom_lock_key;
-#endif
- nvmem->eeprom.private = &nvmem->dev;
- nvmem->base_dev = config->base_dev;
+ cell = kzalloc(sizeof(*cell), GFP_KERNEL);
+ if (!cell) {
+ rval = -ENOMEM;
+ goto out;
+ }
- rval = device_create_bin_file(nvmem->base_dev, &nvmem->eeprom);
- if (rval) {
- dev_err(&nvmem->dev,
- "Failed to create eeprom binary file %d\n", rval);
- return rval;
+ rval = nvmem_cell_info_to_nvmem_cell(nvmem,
+ info,
+ cell);
+ if (rval) {
+ kfree(cell);
+ goto out;
+ }
+
+ nvmem_cell_add(cell);
+ }
+ }
}
- nvmem->flags |= FLAG_COMPAT;
+out:
+ mutex_unlock(&nvmem_cell_mutex);
+ return rval;
+}
+
+static int nvmem_add_cells_from_of(struct nvmem_device *nvmem)
+{
+ struct device_node *parent, *child;
+ struct device *dev = &nvmem->dev;
+ struct nvmem_cell *cell;
+ const __be32 *addr;
+ int len;
+
+ parent = dev->of_node;
+
+ for_each_child_of_node(parent, child) {
+ addr = of_get_property(child, "reg", &len);
+ if (!addr || (len < 2 * sizeof(u32))) {
+ dev_err(dev, "nvmem: invalid reg on %pOF\n", child);
+ return -EINVAL;
+ }
+
+ cell = kzalloc(sizeof(*cell), GFP_KERNEL);
+ if (!cell)
+ return -ENOMEM;
+
+ cell->nvmem = nvmem;
+ cell->np = of_node_get(child);
+ cell->offset = be32_to_cpup(addr++);
+ cell->bytes = be32_to_cpup(addr);
+ cell->name = child->name;
+
+ addr = of_get_property(child, "bits", &len);
+ if (addr && len == (2 * sizeof(u32))) {
+ cell->bit_offset = be32_to_cpup(addr++);
+ cell->nbits = be32_to_cpup(addr);
+ }
+
+ if (cell->nbits)
+ cell->bytes = DIV_ROUND_UP(
+ cell->nbits + cell->bit_offset,
+ BITS_PER_BYTE);
+
+ if (!IS_ALIGNED(cell->offset, nvmem->stride)) {
+ dev_err(dev, "cell %s unaligned to nvmem stride %d\n",
+ cell->name, nvmem->stride);
+ /* Cells already added will be freed later. */
+ kfree(cell);
+ return -EINVAL;
+ }
+
+ nvmem_cell_add(cell);
+ }
return 0;
}
@@ -474,6 +316,9 @@ struct nvmem_device *nvmem_register(const struct nvmem_config *config)
return ERR_PTR(rval);
}
+ kref_init(&nvmem->refcnt);
+ INIT_LIST_HEAD(&nvmem->cells);
+
nvmem->id = rval;
nvmem->owner = config->owner;
if (!nvmem->owner && config->dev->driver)
@@ -500,14 +345,7 @@ struct nvmem_device *nvmem_register(const struct nvmem_config *config)
nvmem->read_only = device_property_present(config->dev, "read-only") |
config->read_only;
- if (config->root_only)
- nvmem->dev.groups = nvmem->read_only ?
- nvmem_ro_root_dev_groups :
- nvmem_rw_root_dev_groups;
- else
- nvmem->dev.groups = nvmem->read_only ?
- nvmem_ro_dev_groups :
- nvmem_rw_dev_groups;
+ nvmem->dev.groups = nvmem_sysfs_get_groups(nvmem, config);
device_initialize(&nvmem->dev);
@@ -518,7 +356,7 @@ struct nvmem_device *nvmem_register(const struct nvmem_config *config)
goto err_put_device;
if (config->compat) {
- rval = nvmem_setup_compat(nvmem, config);
+ rval = nvmem_sysfs_setup_compat(nvmem, config);
if (rval)
goto err_device_del;
}
@@ -529,11 +367,21 @@ struct nvmem_device *nvmem_register(const struct nvmem_config *config)
goto err_teardown_compat;
}
+ rval = nvmem_add_cells_from_table(nvmem);
+ if (rval)
+ goto err_remove_cells;
+
+ rval = nvmem_add_cells_from_of(nvmem);
+ if (rval)
+ goto err_remove_cells;
+
return nvmem;
+err_remove_cells:
+ nvmem_device_remove_all_cells(nvmem);
err_teardown_compat:
if (config->compat)
- device_remove_bin_file(nvmem->base_dev, &nvmem->eeprom);
+ nvmem_sysfs_remove_compat(nvmem, config);
err_device_del:
device_del(&nvmem->dev);
err_put_device:
@@ -543,6 +391,20 @@ struct nvmem_device *nvmem_register(const struct nvmem_config *config)
}
EXPORT_SYMBOL_GPL(nvmem_register);
+static void nvmem_device_release(struct kref *kref)
+{
+ struct nvmem_device *nvmem;
+
+ nvmem = container_of(kref, struct nvmem_device, refcnt);
+
+ if (nvmem->flags & FLAG_COMPAT)
+ device_remove_bin_file(nvmem->base_dev, &nvmem->eeprom);
+
+ nvmem_device_remove_all_cells(nvmem);
+ device_del(&nvmem->dev);
+ put_device(&nvmem->dev);
+}
+
/**
* nvmem_unregister() - Unregister previously registered nvmem device
*
@@ -552,19 +414,7 @@ EXPORT_SYMBOL_GPL(nvmem_register);
*/
int nvmem_unregister(struct nvmem_device *nvmem)
{
- mutex_lock(&nvmem_mutex);
- if (nvmem->users) {
- mutex_unlock(&nvmem_mutex);
- return -EBUSY;
- }
- mutex_unlock(&nvmem_mutex);
-
- if (nvmem->flags & FLAG_COMPAT)
- device_remove_bin_file(nvmem->base_dev, &nvmem->eeprom);
-
- nvmem_device_remove_all_cells(nvmem);
- device_del(&nvmem->dev);
- put_device(&nvmem->dev);
+ kref_put(&nvmem->refcnt, nvmem_device_release);
return 0;
}
@@ -637,52 +487,32 @@ static struct nvmem_device *__nvmem_device_get(struct device_node *np,
{
struct nvmem_device *nvmem = NULL;
+ if (!np)
+ return ERR_PTR(-ENOENT);
+
mutex_lock(&nvmem_mutex);
-
- if (np) {
- nvmem = of_nvmem_find(np);
- if (!nvmem) {
- mutex_unlock(&nvmem_mutex);
- return ERR_PTR(-EPROBE_DEFER);
- }
- } else {
- struct nvmem_cell *cell = nvmem_find_cell(cell_id);
-
- if (cell) {
- nvmem = cell->nvmem;
- *cellp = cell;
- }
-
- if (!nvmem) {
- mutex_unlock(&nvmem_mutex);
- return ERR_PTR(-ENOENT);
- }
- }
-
- nvmem->users++;
+ nvmem = of_nvmem_find(np);
mutex_unlock(&nvmem_mutex);
+ if (!nvmem)
+ return ERR_PTR(-EPROBE_DEFER);
if (!try_module_get(nvmem->owner)) {
dev_err(&nvmem->dev,
"could not increase module refcount for cell %s\n",
nvmem->name);
- mutex_lock(&nvmem_mutex);
- nvmem->users--;
- mutex_unlock(&nvmem_mutex);
-
return ERR_PTR(-EINVAL);
}
+ kref_get(&nvmem->refcnt);
+
return nvmem;
}
static void __nvmem_device_put(struct nvmem_device *nvmem)
{
module_put(nvmem->owner);
- mutex_lock(&nvmem_mutex);
- nvmem->users--;
- mutex_unlock(&nvmem_mutex);
+ kref_put(&nvmem->refcnt, nvmem_device_release);
}
static struct nvmem_device *nvmem_find(const char *name)
@@ -836,6 +666,21 @@ static struct nvmem_cell *nvmem_cell_get_from_list(const char *cell_id)
}
#if IS_ENABLED(CONFIG_OF)
+static struct nvmem_cell *
+nvmem_find_cell_by_node(struct nvmem_device *nvmem, struct device_node *np)
+{
+ struct nvmem_cell *cell = NULL;
+
+ mutex_lock(&nvmem_mutex);
+ list_for_each_entry(cell, &nvmem->cells, node) {
+ if (np == cell->np)
+ break;
+ }
+ mutex_unlock(&nvmem_mutex);
+
+ return cell;
+}
+
/**
* of_nvmem_cell_get() - Get a nvmem cell from given device node and cell id
*
@@ -852,10 +697,8 @@ struct nvmem_cell *of_nvmem_cell_get(struct device_node *np,
const char *name)
{
struct device_node *cell_np, *nvmem_np;
- struct nvmem_cell *cell;
struct nvmem_device *nvmem;
- const __be32 *addr;
- int rval, len;
+ struct nvmem_cell *cell;
int index = 0;
/* if cell name exists, find index to the name */
@@ -875,54 +718,13 @@ struct nvmem_cell *of_nvmem_cell_get(struct device_node *np,
if (IS_ERR(nvmem))
return ERR_CAST(nvmem);
- addr = of_get_property(cell_np, "reg", &len);
- if (!addr || (len < 2 * sizeof(u32))) {
- dev_err(&nvmem->dev, "nvmem: invalid reg on %pOF\n",
- cell_np);
- rval = -EINVAL;
- goto err_mem;
- }
-
- cell = kzalloc(sizeof(*cell), GFP_KERNEL);
+ cell = nvmem_find_cell_by_node(nvmem, cell_np);
if (!cell) {
- rval = -ENOMEM;
- goto err_mem;
+ __nvmem_device_put(nvmem);
+ return ERR_PTR(-ENOENT);
}
- cell->nvmem = nvmem;
- cell->offset = be32_to_cpup(addr++);
- cell->bytes = be32_to_cpup(addr);
- cell->name = cell_np->name;
-
- addr = of_get_property(cell_np, "bits", &len);
- if (addr && len == (2 * sizeof(u32))) {
- cell->bit_offset = be32_to_cpup(addr++);
- cell->nbits = be32_to_cpup(addr);
- }
-
- if (cell->nbits)
- cell->bytes = DIV_ROUND_UP(cell->nbits + cell->bit_offset,
- BITS_PER_BYTE);
-
- if (!IS_ALIGNED(cell->offset, nvmem->stride)) {
- dev_err(&nvmem->dev,
- "cell %s unaligned to nvmem stride %d\n",
- cell->name, nvmem->stride);
- rval = -EINVAL;
- goto err_sanity;
- }
-
- nvmem_cell_add(cell);
-
return cell;
-
-err_sanity:
- kfree(cell);
-
-err_mem:
- __nvmem_device_put(nvmem);
-
- return ERR_PTR(rval);
}
EXPORT_SYMBOL_GPL(of_nvmem_cell_get);
#endif
@@ -1028,7 +830,6 @@ void nvmem_cell_put(struct nvmem_cell *cell)
struct nvmem_device *nvmem = cell->nvmem;
__nvmem_device_put(nvmem);
- nvmem_cell_drop(cell);
}
EXPORT_SYMBOL_GPL(nvmem_cell_put);
@@ -1361,6 +1162,45 @@ int nvmem_device_write(struct nvmem_device *nvmem,
}
EXPORT_SYMBOL_GPL(nvmem_device_write);
+/**
+ * nvmem_add_cell_table() - register a table of cell info entries
+ *
+ * @table: table of cell info entries
+ */
+void nvmem_add_cell_table(struct nvmem_cell_table *table)
+{
+ mutex_lock(&nvmem_cell_mutex);
+ list_add_tail(&table->node, &nvmem_cell_tables);
+ mutex_unlock(&nvmem_cell_mutex);
+}
+EXPORT_SYMBOL_GPL(nvmem_add_cell_table);
+
+/**
+ * nvmem_del_cell_table() - remove a previously registered cell info table
+ *
+ * @table: table of cell info entries
+ */
+void nvmem_del_cell_table(struct nvmem_cell_table *table)
+{
+ mutex_lock(&nvmem_cell_mutex);
+ list_del(&table->node);
+ mutex_unlock(&nvmem_cell_mutex);
+}
+EXPORT_SYMBOL_GPL(nvmem_del_cell_table);
+
+/**
+ * nvmem_dev_name() - Get the name of a given nvmem device.
+ *
+ * @nvmem: nvmem device.
+ *
+ * Return: name of the nvmem device.
+ */
+const char *nvmem_dev_name(struct nvmem_device *nvmem)
+{
+ return dev_name(&nvmem->dev);
+}
+EXPORT_SYMBOL_GPL(nvmem_dev_name);
+
static int __init nvmem_init(void)
{
return bus_register(&nvmem_bus_type);
diff --git a/drivers/nvmem/nvmem-sysfs.c b/drivers/nvmem/nvmem-sysfs.c
new file mode 100644
index 0000000..978bacd
--- /dev/null
+++ b/drivers/nvmem/nvmem-sysfs.c
@@ -0,0 +1,230 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2019, Linaro Limited
+ */
+#include "nvmem.h"
+
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+static struct lock_class_key eeprom_lock_key;
+#endif
+
+static ssize_t bin_attr_nvmem_read(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *attr,
+ char *buf, loff_t pos, size_t count)
+{
+ struct device *dev;
+ struct nvmem_device *nvmem;
+ int rc;
+
+ if (attr->private)
+ dev = attr->private;
+ else
+ dev = container_of(kobj, struct device, kobj);
+ nvmem = to_nvmem_device(dev);
+
+ /* Stop the user from reading */
+ if (pos >= nvmem->size)
+ return 0;
+
+ if (count < nvmem->word_size)
+ return -EINVAL;
+
+ if (pos + count > nvmem->size)
+ count = nvmem->size - pos;
+
+ count = round_down(count, nvmem->word_size);
+
+ rc = nvmem->reg_read(nvmem->priv, pos, buf, count);
+
+ if (rc)
+ return rc;
+
+ return count;
+}
+
+static ssize_t bin_attr_nvmem_write(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *attr,
+ char *buf, loff_t pos, size_t count)
+{
+ struct device *dev;
+ struct nvmem_device *nvmem;
+ int rc;
+
+ if (attr->private)
+ dev = attr->private;
+ else
+ dev = container_of(kobj, struct device, kobj);
+ nvmem = to_nvmem_device(dev);
+
+ /* Stop the user from writing */
+ if (pos >= nvmem->size)
+ return -EFBIG;
+
+ if (count < nvmem->word_size)
+ return -EINVAL;
+
+ if (pos + count > nvmem->size)
+ count = nvmem->size - pos;
+
+ count = round_down(count, nvmem->word_size);
+
+ rc = nvmem->reg_write(nvmem->priv, pos, buf, count);
+
+ if (rc)
+ return rc;
+
+ return count;
+}
+
+/* default read/write permissions */
+static struct bin_attribute bin_attr_rw_nvmem = {
+ .attr = {
+ .name = "nvmem",
+ .mode = 0644,
+ },
+ .read = bin_attr_nvmem_read,
+ .write = bin_attr_nvmem_write,
+};
+
+static struct bin_attribute *nvmem_bin_rw_attributes[] = {
+ &bin_attr_rw_nvmem,
+ NULL,
+};
+
+static const struct attribute_group nvmem_bin_rw_group = {
+ .bin_attrs = nvmem_bin_rw_attributes,
+};
+
+static const struct attribute_group *nvmem_rw_dev_groups[] = {
+ &nvmem_bin_rw_group,
+ NULL,
+};
+
+/* read only permission */
+static struct bin_attribute bin_attr_ro_nvmem = {
+ .attr = {
+ .name = "nvmem",
+ .mode = 0444,
+ },
+ .read = bin_attr_nvmem_read,
+};
+
+static struct bin_attribute *nvmem_bin_ro_attributes[] = {
+ &bin_attr_ro_nvmem,
+ NULL,
+};
+
+static const struct attribute_group nvmem_bin_ro_group = {
+ .bin_attrs = nvmem_bin_ro_attributes,
+};
+
+static const struct attribute_group *nvmem_ro_dev_groups[] = {
+ &nvmem_bin_ro_group,
+ NULL,
+};
+
+/* default read/write permissions, root only */
+static struct bin_attribute bin_attr_rw_root_nvmem = {
+ .attr = {
+ .name = "nvmem",
+ .mode = 0600,
+ },
+ .read = bin_attr_nvmem_read,
+ .write = bin_attr_nvmem_write,
+};
+
+static struct bin_attribute *nvmem_bin_rw_root_attributes[] = {
+ &bin_attr_rw_root_nvmem,
+ NULL,
+};
+
+static const struct attribute_group nvmem_bin_rw_root_group = {
+ .bin_attrs = nvmem_bin_rw_root_attributes,
+};
+
+static const struct attribute_group *nvmem_rw_root_dev_groups[] = {
+ &nvmem_bin_rw_root_group,
+ NULL,
+};
+
+/* read only permission, root only */
+static struct bin_attribute bin_attr_ro_root_nvmem = {
+ .attr = {
+ .name = "nvmem",
+ .mode = 0400,
+ },
+ .read = bin_attr_nvmem_read,
+};
+
+static struct bin_attribute *nvmem_bin_ro_root_attributes[] = {
+ &bin_attr_ro_root_nvmem,
+ NULL,
+};
+
+static const struct attribute_group nvmem_bin_ro_root_group = {
+ .bin_attrs = nvmem_bin_ro_root_attributes,
+};
+
+static const struct attribute_group *nvmem_ro_root_dev_groups[] = {
+ &nvmem_bin_ro_root_group,
+ NULL,
+};
+
+const struct attribute_group **nvmem_sysfs_get_groups(
+ struct nvmem_device *nvmem,
+ const struct nvmem_config *config)
+{
+ if (config->root_only)
+ return nvmem->read_only ?
+ nvmem_ro_root_dev_groups :
+ nvmem_rw_root_dev_groups;
+
+ return nvmem->read_only ? nvmem_ro_dev_groups : nvmem_rw_dev_groups;
+}
+
+/*
+ * nvmem_setup_compat() - Create an additional binary entry in
+ * drivers sys directory, to be backwards compatible with the older
+ * drivers/misc/eeprom drivers.
+ */
+int nvmem_sysfs_setup_compat(struct nvmem_device *nvmem,
+ const struct nvmem_config *config)
+{
+ int rval;
+
+ if (!config->compat)
+ return 0;
+
+ if (!config->base_dev)
+ return -EINVAL;
+
+ if (nvmem->read_only)
+ nvmem->eeprom = bin_attr_ro_root_nvmem;
+ else
+ nvmem->eeprom = bin_attr_rw_root_nvmem;
+ nvmem->eeprom.attr.name = "eeprom";
+ nvmem->eeprom.size = nvmem->size;
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+ nvmem->eeprom.attr.key = &eeprom_lock_key;
+#endif
+ nvmem->eeprom.private = &nvmem->dev;
+ nvmem->base_dev = config->base_dev;
+
+ rval = device_create_bin_file(nvmem->base_dev, &nvmem->eeprom);
+ if (rval) {
+ dev_err(&nvmem->dev,
+ "Failed to create eeprom binary file %d\n", rval);
+ return rval;
+ }
+
+ nvmem->flags |= FLAG_COMPAT;
+
+ return 0;
+}
+
+void nvmem_sysfs_remove_compat(struct nvmem_device *nvmem,
+ const struct nvmem_config *config)
+{
+ if (config->compat)
+ device_remove_bin_file(nvmem->base_dev, &nvmem->eeprom);
+}
diff --git a/drivers/nvmem/nvmem.h b/drivers/nvmem/nvmem.h
new file mode 100644
index 0000000..778f310
--- /dev/null
+++ b/drivers/nvmem/nvmem.h
@@ -0,0 +1,62 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef _DRIVERS_NVMEM_H
+#define _DRIVERS_NVMEM_H
+
+#include <linux/device.h>
+#include <linux/fs.h>
+#include <linux/kref.h>
+#include <linux/list.h>
+#include <linux/nvmem-consumer.h>
+#include <linux/nvmem-provider.h>
+
+struct nvmem_device {
+ const char *name;
+ struct module *owner;
+ struct device dev;
+ int stride;
+ int word_size;
+ int id;
+ struct kref refcnt;
+ size_t size;
+ bool read_only;
+ int flags;
+ struct bin_attribute eeprom;
+ struct device *base_dev;
+ struct list_head cells;
+ nvmem_reg_read_t reg_read;
+ nvmem_reg_write_t reg_write;
+ void *priv;
+};
+
+#define to_nvmem_device(d) container_of(d, struct nvmem_device, dev)
+#define FLAG_COMPAT BIT(0)
+
+#ifdef CONFIG_NVMEM_SYSFS
+const struct attribute_group **nvmem_sysfs_get_groups(
+ struct nvmem_device *nvmem,
+ const struct nvmem_config *config);
+int nvmem_sysfs_setup_compat(struct nvmem_device *nvmem,
+ const struct nvmem_config *config);
+void nvmem_sysfs_remove_compat(struct nvmem_device *nvmem,
+ const struct nvmem_config *config);
+#else
+static inline const struct attribute_group **nvmem_sysfs_get_groups(
+ struct nvmem_device *nvmem,
+ const struct nvmem_config *config)
+{
+ return NULL;
+}
+
+static inline int nvmem_sysfs_setup_compat(struct nvmem_device *nvmem,
+ const struct nvmem_config *config)
+{
+ return -ENOSYS;
+}
+static inline void nvmem_sysfs_remove_compat(struct nvmem_device *nvmem,
+ const struct nvmem_config *config)
+{
+}
+#endif /* CONFIG_NVMEM_SYSFS */
+
+#endif /* _DRIVERS_NVMEM_H */
diff --git a/drivers/of/base.c b/drivers/of/base.c
index f0dbb7a..b28dee2 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -1342,6 +1342,7 @@ int of_phandle_iterator_args(struct of_phandle_iterator *it,
return count;
}
+EXPORT_SYMBOL_GPL(of_phandle_iterator_args);
static int __of_parse_phandle_with_args(const struct device_node *np,
const char *list_name,
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 1eb6af6..3315e02 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -25,6 +25,7 @@
#include <linux/debugfs.h>
#include <linux/serial_core.h>
#include <linux/sysfs.h>
+#include <linux/random.h>
#include <asm/setup.h> /* for COMMAND_LINE_SIZE */
#include <asm/page.h>
@@ -80,6 +81,98 @@ void of_fdt_limit_memory(int limit)
}
/**
+ * of_fdt_get_ddrhbb - Return the highest bank bit of ddr on the current device
+ *
+ * On match, returns a non-zero positive value which matches the highest bank
+ * bit.
+ * Otherwise returns -ENOENT.
+ */
+int of_fdt_get_ddrhbb(int channel, int rank)
+{
+ int memory;
+ int len;
+ int ret;
+ /* Single spaces reserved for channel(0-9), rank(0-9) */
+ char pname[] = "ddr_device_hbb_ch _rank ";
+ fdt32_t *prop = NULL;
+
+ memory = fdt_path_offset(initial_boot_params, "/memory");
+ if (memory > 0) {
+ snprintf(pname, sizeof(pname),
+ "ddr_device_hbb_ch%d_rank%d", channel, rank);
+ prop = fdt_getprop_w(initial_boot_params, memory,
+ pname, &len);
+ }
+
+ if (!prop || len != sizeof(u32))
+ return -ENOENT;
+
+ ret = fdt32_to_cpu(*prop);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(of_fdt_get_ddrhbb);
+
+/**
+ * of_fdt_get_ddrrank - Return the rank of ddr on the current device
+ *
+ * On match, returns a non-zero positive value which matches the ddr rank.
+ * Otherwise returns -ENOENT.
+ */
+int of_fdt_get_ddrrank(int channel)
+{
+ int memory;
+ int len;
+ int ret;
+ /* Single space reserved for channel(0-9) */
+ char pname[] = "ddr_device_rank_ch ";
+ fdt32_t *prop = NULL;
+
+ memory = fdt_path_offset(initial_boot_params, "/memory");
+ if (memory > 0) {
+ snprintf(pname, sizeof(pname),
+ "ddr_device_rank_ch%d", channel);
+ prop = fdt_getprop_w(initial_boot_params, memory,
+ pname, &len);
+ }
+
+ if (!prop || len != sizeof(u32))
+ return -ENOENT;
+
+ ret = fdt32_to_cpu(*prop);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(of_fdt_get_ddrrank);
+
+/**
+ * of_fdt_get_ddrtype - Return the type of ddr (4/5) on the current device
+ *
+ * On match, returns a non-zero positive value which matches the ddr type.
+ * Otherwise returns -ENOENT.
+ */
+int of_fdt_get_ddrtype(void)
+{
+ int memory;
+ int len;
+ int ret;
+ fdt32_t *prop = NULL;
+
+ memory = fdt_path_offset(initial_boot_params, "/memory");
+ if (memory > 0)
+ prop = fdt_getprop_w(initial_boot_params, memory,
+ "ddr_device_type", &len);
+
+ if (!prop || len != sizeof(u32))
+ return -ENOENT;
+
+ ret = fdt32_to_cpu(*prop);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(of_fdt_get_ddrtype);
+
+/**
* of_fdt_is_compatible - Return true if given node from the given blob has
* compat in its compatible list
* @blob: A device tree blob
@@ -1072,45 +1165,82 @@ int __init early_init_dt_scan_memory(unsigned long node, const char *uname,
return 0;
}
+/*
+ * Convert configs to something easy to use in C code
+ */
+#if defined(CONFIG_CMDLINE_FORCE)
+static const int overwrite_incoming_cmdline = 1;
+static const int read_dt_cmdline;
+static const int concat_cmdline;
+#elif defined(CONFIG_CMDLINE_EXTEND)
+static const int overwrite_incoming_cmdline;
+static const int read_dt_cmdline = 1;
+static const int concat_cmdline = 1;
+#else /* CMDLINE_FROM_BOOTLOADER */
+static const int overwrite_incoming_cmdline;
+static const int read_dt_cmdline = 1;
+static const int concat_cmdline;
+#endif
+
+#ifdef CONFIG_CMDLINE
+static const char *config_cmdline = CONFIG_CMDLINE;
+#else
+static const char *config_cmdline = "";
+#endif
+
int __init early_init_dt_scan_chosen(unsigned long node, const char *uname,
int depth, void *data)
{
- int l;
- const char *p;
+ int l = 0;
+ const char *p = NULL;
+ char *cmdline = data;
+ const void *rng_seed;
pr_debug("search \"chosen\", depth: %d, uname: %s\n", depth, uname);
- if (depth != 1 || !data ||
+ if (depth != 1 || !cmdline ||
(strcmp(uname, "chosen") != 0 && strcmp(uname, "chosen@0") != 0))
return 0;
early_init_dt_check_for_initrd(node);
- /* Retrieve command line */
- p = of_get_flat_dt_prop(node, "bootargs", &l);
- if (p != NULL && l > 0)
- strlcpy(data, p, min((int)l, COMMAND_LINE_SIZE));
+ /* Put CONFIG_CMDLINE in if forced or if data had nothing in it to start */
+ if (overwrite_incoming_cmdline || !cmdline[0])
+ strlcpy(cmdline, config_cmdline, COMMAND_LINE_SIZE);
- /*
- * CONFIG_CMDLINE is meant to be a default in case nothing else
- * managed to set the command line, unless CONFIG_CMDLINE_FORCE
- * is set in which case we override whatever was found earlier.
- */
-#ifdef CONFIG_CMDLINE
-#if defined(CONFIG_CMDLINE_EXTEND)
- strlcat(data, " ", COMMAND_LINE_SIZE);
- strlcat(data, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
-#elif defined(CONFIG_CMDLINE_FORCE)
- strlcpy(data, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
-#else
- /* No arguments from boot loader, use kernel's cmdl*/
- if (!((char *)data)[0])
- strlcpy(data, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
-#endif
-#endif /* CONFIG_CMDLINE */
+ /* Retrieve command line unless forcing */
+ if (read_dt_cmdline)
+ p = of_get_flat_dt_prop(node, "bootargs", &l);
+
+ if (p != NULL && l > 0) {
+ if (concat_cmdline) {
+ int cmdline_len;
+ int copy_len;
+ strlcat(cmdline, " ", COMMAND_LINE_SIZE);
+ cmdline_len = strlen(cmdline);
+ copy_len = COMMAND_LINE_SIZE - cmdline_len - 1;
+ copy_len = min((int)l, copy_len);
+ strncpy(cmdline + cmdline_len, p, copy_len);
+ cmdline[cmdline_len + copy_len] = '\0';
+ } else {
+ strlcpy(cmdline, p, min((int)l, COMMAND_LINE_SIZE));
+ }
+ }
pr_debug("Command line is: %s\n", (char*)data);
+ rng_seed = of_get_flat_dt_prop(node, "rng-seed", &l);
+ if (rng_seed && l > 0) {
+ add_bootloader_randomness(rng_seed, l);
+
+ /* try to clear seed so it won't be found. */
+ fdt_nop_property(initial_boot_params, node, "rng-seed");
+
+ /* update CRC check value */
+ of_fdt_crc32 = crc32_be(~0, initial_boot_params,
+ fdt_totalsize(initial_boot_params));
+ }
+
/* break now */
return 1;
}
diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index 02ad93a..5eb96a2 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -274,6 +274,131 @@ int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq)
}
EXPORT_SYMBOL_GPL(of_irq_parse_raw);
+int of_irq_domain_map(const struct irq_fwspec *in, struct irq_fwspec *out)
+{
+ char *stem_name;
+ char *cells_name, *map_name = NULL, *mask_name = NULL;
+ char *pass_name = NULL;
+ struct device_node *cur, *new = NULL;
+ const __be32 *map, *mask, *pass;
+ static const __be32 dummy_mask[] = { [0 ... MAX_PHANDLE_ARGS] = ~0 };
+ static const __be32 dummy_pass[] = { [0 ... MAX_PHANDLE_ARGS] = 0 };
+ __be32 initial_match_array[MAX_PHANDLE_ARGS];
+ const __be32 *match_array = initial_match_array;
+ int i, ret, map_len, match;
+ u32 in_size, out_size;
+
+ stem_name = "";
+ cells_name = "#interrupt-cells";
+
+ ret = -ENOMEM;
+ map_name = kasprintf(GFP_KERNEL, "irqdomain%s-map", stem_name);
+ if (!map_name)
+ goto free;
+
+ mask_name = kasprintf(GFP_KERNEL, "irqdomain%s-map-mask", stem_name);
+ if (!mask_name)
+ goto free;
+
+ pass_name = kasprintf(GFP_KERNEL, "irqdomain%s-map-pass-thru", stem_name);
+ if (!pass_name)
+ goto free;
+
+ /* Get the #interrupt-cells property */
+ cur = to_of_node(in->fwnode);
+ ret = of_property_read_u32(cur, cells_name, &in_size);
+ if (ret < 0)
+ goto put;
+
+ /* Precalculate the match array - this simplifies match loop */
+ for (i = 0; i < in_size; i++)
+ initial_match_array[i] = cpu_to_be32(in->param[i]);
+
+ ret = -EINVAL;
+ /* Get the irqdomain-map property */
+ map = of_get_property(cur, map_name, &map_len);
+ if (!map) {
+ ret = 0;
+ goto free;
+ }
+ map_len /= sizeof(u32);
+
+ /* Get the irqdomain-map-mask property (optional) */
+ mask = of_get_property(cur, mask_name, NULL);
+ if (!mask)
+ mask = dummy_mask;
+ /* Iterate through irqdomain-map property */
+ match = 0;
+ while (map_len > (in_size + 1) && !match) {
+ /* Compare specifiers */
+ match = 1;
+ for (i = 0; i < in_size; i++, map_len--)
+ match &= !((match_array[i] ^ *map++) & mask[i]);
+
+ of_node_put(new);
+ new = of_find_node_by_phandle(be32_to_cpup(map));
+ map++;
+ map_len--;
+
+ /* Check if not found */
+ if (!new)
+ goto put;
+
+ if (!of_device_is_available(new))
+ match = 0;
+
+ ret = of_property_read_u32(new, cells_name, &out_size);
+ if (ret)
+ goto put;
+
+ /* Check for malformed properties */
+ if (WARN_ON(out_size > MAX_PHANDLE_ARGS))
+ goto put;
+ if (map_len < out_size)
+ goto put;
+
+ /* Move forward by new node's #interrupt-cells amount */
+ map += out_size;
+ map_len -= out_size;
+ }
+ if (match) {
+ /* Get the irqdomain-map-pass-thru property (optional) */
+ pass = of_get_property(cur, pass_name, NULL);
+ if (!pass)
+ pass = dummy_pass;
+
+ /*
+ * Successfully parsed a irqdomain-map translation; copy new
+ * specifier into the out structure, keeping the
+ * bits specified in irqdomain-map-pass-thru.
+ */
+ match_array = map - out_size;
+ for (i = 0; i < out_size; i++) {
+ __be32 val = *(map - out_size + i);
+
+ out->param[i] = in->param[i];
+ if (i < in_size) {
+ val &= ~pass[i];
+ val |= cpu_to_be32(out->param[i]) & pass[i];
+ }
+
+ out->param[i] = be32_to_cpu(val);
+ }
+ out->param_count = in_size = out_size;
+ out->fwnode = of_node_to_fwnode(new);
+ }
+put:
+ of_node_put(cur);
+ of_node_put(new);
+free:
+ kfree(mask_name);
+ kfree(map_name);
+ kfree(pass_name);
+
+ return ret;
+}
+EXPORT_SYMBOL(of_irq_domain_map);
+
/**
* of_irq_parse_one - Resolve an interrupt for a device
* @device: the device whose interrupt is to be resolved
diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c
index ff230ee..fdc9273 100644
--- a/drivers/of/of_reserved_mem.c
+++ b/drivers/of/of_reserved_mem.c
@@ -20,6 +20,7 @@
#include <linux/of_reserved_mem.h>
#include <linux/sort.h>
#include <linux/slab.h>
+#include <linux/kmemleak.h>
#define MAX_RESERVED_REGIONS 32
static struct reserved_mem reserved_mem[MAX_RESERVED_REGIONS];
@@ -50,8 +51,10 @@ int __init __weak early_init_dt_alloc_reserved_memory_arch(phys_addr_t size,
}
*res_base = base;
- if (nomap)
+ if (nomap) {
+ kmemleak_ignore_phys(base);
return memblock_remove(base, size);
+ }
return 0;
}
#else
diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index 04ad312..1dcf0e8 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -20,6 +20,7 @@
#include <linux/of_iommu.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
+#include <linux/of_reserved_mem.h>
#include <linux/platform_device.h>
const struct of_device_id of_default_bus_match_table[] = {
@@ -191,6 +192,7 @@ static struct platform_device *of_platform_device_create_pdata(
dev->dev.bus = &platform_bus_type;
dev->dev.platform_data = platform_data;
of_msi_configure(&dev->dev, dev->dev.of_node);
+ of_reserved_mem_device_init_by_idx(&dev->dev, dev->dev.of_node, 0);
if (of_device_add(dev) != 0) {
platform_device_put(dev);
@@ -486,6 +488,7 @@ int of_platform_populate(struct device_node *root,
pr_debug("%s()\n", __func__);
pr_debug(" starting at: %pOF\n", root);
+ device_links_supplier_sync_state_pause();
for_each_child_of_node(root, child) {
rc = of_platform_bus_create(child, matches, lookup, parent, true);
if (rc) {
@@ -493,6 +496,8 @@ int of_platform_populate(struct device_node *root,
break;
}
}
+ device_links_supplier_sync_state_resume();
+
of_node_set_flag(root, OF_POPULATED_BUS);
of_node_put(root);
@@ -521,6 +526,8 @@ static int __init of_platform_default_populate_init(void)
{
struct device_node *node;
+ device_links_supplier_sync_state_pause();
+
if (!of_have_populated_dt())
return -ENODEV;
@@ -539,11 +546,20 @@ static int __init of_platform_default_populate_init(void)
}
/* Populate everything else. */
+ fw_devlink_pause();
of_platform_default_populate(NULL, NULL, NULL);
+ fw_devlink_resume();
return 0;
}
arch_initcall_sync(of_platform_default_populate_init);
+
+static int __init of_platform_sync_state_init(void)
+{
+ device_links_supplier_sync_state_resume();
+ return 0;
+}
+late_initcall_sync(of_platform_sync_state_init);
#endif
int of_platform_device_destroy(struct device *dev, void *data)
diff --git a/drivers/of/property.c b/drivers/of/property.c
index 43720c2de..28be835 100644
--- a/drivers/of/property.c
+++ b/drivers/of/property.c
@@ -25,6 +25,7 @@
#include <linux/of_device.h>
#include <linux/of_graph.h>
#include <linux/string.h>
+#include <linux/moduleparam.h>
#include "of_private.h"
@@ -985,6 +986,381 @@ of_fwnode_device_get_match_data(const struct fwnode_handle *fwnode,
return of_device_get_match_data(dev);
}
+static bool of_is_ancestor_of(struct device_node *test_ancestor,
+ struct device_node *child)
+{
+ of_node_get(child);
+ while (child) {
+ if (child == test_ancestor) {
+ of_node_put(child);
+ return true;
+ }
+ child = of_get_next_parent(child);
+ }
+ return false;
+}
+
+/**
+ * of_link_to_phandle - Add device link to supplier from supplier phandle
+ * @dev: consumer device
+ * @sup_np: phandle to supplier device tree node
+ *
+ * Given a phandle to a supplier device tree node (@sup_np), this function
+ * finds the device that owns the supplier device tree node and creates a
+ * device link from @dev consumer device to the supplier device. This function
+ * doesn't create device links for invalid scenarios such as trying to create a
+ * link with a parent device as the consumer of its child device. In such
+ * cases, it returns an error.
+ *
+ * Returns:
+ * - 0 if link successfully created to supplier
+ * - -EAGAIN if linking to the supplier should be reattempted
+ * - -EINVAL if the supplier link is invalid and should not be created
+ * - -ENODEV if there is no device that corresponds to the supplier phandle
+ */
+static int of_link_to_phandle(struct device *dev, struct device_node *sup_np,
+ u32 dl_flags)
+{
+ struct device *sup_dev;
+ int ret = 0;
+ struct device_node *tmp_np = sup_np;
+ int is_populated;
+
+ of_node_get(sup_np);
+ /*
+ * Find the device node that contains the supplier phandle. It may be
+ * @sup_np or it may be an ancestor of @sup_np.
+ */
+ while (sup_np) {
+
+ /* Don't allow linking to a disabled supplier */
+ if (!of_device_is_available(sup_np)) {
+ of_node_put(sup_np);
+ sup_np = NULL;
+ }
+
+ if (of_find_property(sup_np, "compatible", NULL))
+ break;
+
+ sup_np = of_get_next_parent(sup_np);
+ }
+
+ if (!sup_np) {
+ dev_dbg(dev, "Not linking to %pOFP - No device\n", tmp_np);
+ return -ENODEV;
+ }
+
+ /*
+ * Don't allow linking a device node as a consumer of one of its
+ * descendant nodes. By definition, a child node can't be a functional
+ * dependency for the parent node.
+ */
+ if (of_is_ancestor_of(dev->of_node, sup_np)) {
+ dev_dbg(dev, "Not linking to %pOFP - is descendant\n", sup_np);
+ of_node_put(sup_np);
+ return -EINVAL;
+ }
+ sup_dev = get_dev_from_fwnode(&sup_np->fwnode);
+ is_populated = of_node_check_flag(sup_np, OF_POPULATED);
+ of_node_put(sup_np);
+ if (!sup_dev && is_populated) {
+ /* Early device without struct device. */
+ dev_dbg(dev, "Not linking to %pOFP - No struct device\n",
+ sup_np);
+ return -ENODEV;
+ } else if (!sup_dev) {
+ return -EAGAIN;
+ }
+ if (!device_link_add(dev, sup_dev, dl_flags))
+ ret = -EAGAIN;
+ put_device(sup_dev);
+ return ret;
+}
+
+/**
+ * parse_prop_cells - Property parsing function for suppliers
+ *
+ * @np: Pointer to device tree node containing a list
+ * @prop_name: Name of property to be parsed. Expected to hold phandle values
+ * @index: For properties holding a list of phandles, this is the index
+ * into the list.
+ * @list_name: Property name that is known to contain list of phandle(s) to
+ * supplier(s)
+ * @cells_name: property name that specifies phandles' arguments count
+ *
+ * This is a helper function to parse properties that have a known fixed name
+ * and are a list of phandles and phandle arguments.
+ *
+ * Returns:
+ * - phandle node pointer with refcount incremented. Caller must of_node_put()
+ * on it when done.
+ * - NULL if no phandle found at index
+ */
+static struct device_node *parse_prop_cells(struct device_node *np,
+ const char *prop_name, int index,
+ const char *list_name,
+ const char *cells_name)
+{
+ struct of_phandle_args sup_args;
+
+ if (strcmp(prop_name, list_name))
+ return NULL;
+
+ if (of_parse_phandle_with_args(np, list_name, cells_name, index,
+ &sup_args))
+ return NULL;
+
+ return sup_args.np;
+}
+
+#define DEFINE_SIMPLE_PROP(fname, name, cells) \
+static struct device_node *parse_##fname(struct device_node *np, \
+ const char *prop_name, int index) \
+{ \
+ return parse_prop_cells(np, prop_name, index, name, cells); \
+}
+
+static int strcmp_suffix(const char *str, const char *suffix)
+{
+ unsigned int len, suffix_len;
+
+ len = strlen(str);
+ suffix_len = strlen(suffix);
+ if (len <= suffix_len)
+ return -1;
+ return strcmp(str + len - suffix_len, suffix);
+}
+
+/**
+ * parse_suffix_prop_cells - Suffix property parsing function for suppliers
+ *
+ * @np: Pointer to device tree node containing a list
+ * @prop_name: Name of property to be parsed. Expected to hold phandle values
+ * @index: For properties holding a list of phandles, this is the index
+ * into the list.
+ * @suffix: Property suffix that is known to contain list of phandle(s) to
+ * supplier(s)
+ * @cells_name: property name that specifies phandles' arguments count
+ *
+ * This is a helper function to parse properties that have a known fixed suffix
+ * and are a list of phandles and phandle arguments.
+ *
+ * Returns:
+ * - phandle node pointer with refcount incremented. Caller must of_node_put()
+ * on it when done.
+ * - NULL if no phandle found at index
+ */
+static struct device_node *parse_suffix_prop_cells(struct device_node *np,
+ const char *prop_name, int index,
+ const char *suffix,
+ const char *cells_name)
+{
+ struct of_phandle_args sup_args;
+
+ if (strcmp_suffix(prop_name, suffix))
+ return NULL;
+
+ if (of_parse_phandle_with_args(np, prop_name, cells_name, index,
+ &sup_args))
+ return NULL;
+
+ return sup_args.np;
+}
+
+#define DEFINE_SUFFIX_PROP(fname, suffix, cells) \
+static struct device_node *parse_##fname(struct device_node *np, \
+ const char *prop_name, int index) \
+{ \
+ return parse_suffix_prop_cells(np, prop_name, index, suffix, cells); \
+}
+
+static struct device_node *parse_msm_bus_name(struct device_node *np,
+ const char *prop_name, int index)
+{
+ static struct device_node *bus_dev_np;
+
+ if (index || strcmp(prop_name, "qcom,msm-bus,name"))
+ return NULL;
+
+ if (!bus_dev_np)
+ bus_dev_np = of_find_compatible_node(NULL, NULL,
+ "qcom,msm-bus-device");
+
+ return bus_dev_np;
+}
+
+/* Force ignore of any qcom properties. */
+static struct device_node *parse_qcom_any(struct device_node *np,
+ const char *prop_name, int index)
+{
+ if (index || strncmp(prop_name, "qcom,", strlen("qcom,")))
+ return NULL;
+
+ /*
+ * Returning np will cause this property to be matched and then
+ * ignored.
+ */
+ return np;
+}
+
+/**
+ * struct supplier_bindings - Property parsing functions for suppliers
+ *
+ * @parse_prop: function name
+ * parse_prop() finds the node corresponding to a supplier phandle
+ * @parse_prop.np: Pointer to device node holding supplier phandle property
+ * @parse_prop.prop_name: Name of property holding a phandle value
+ * @parse_prop.index: For properties holding a list of phandles, this is the
+ * index into the list
+ *
+ * Returns:
+ * parse_prop() return values are
+ * - phandle node pointer with refcount incremented. Caller must of_node_put()
+ * on it when done.
+ * - NULL if no phandle found at index
+ */
+struct supplier_bindings {
+ struct device_node *(*parse_prop)(struct device_node *np,
+ const char *prop_name, int index);
+};
+
+DEFINE_SIMPLE_PROP(qcom_wrapper_core, "qcom,wrapper-core", NULL)
+DEFINE_SIMPLE_PROP(clocks, "clocks", "#clock-cells")
+DEFINE_SIMPLE_PROP(interconnects, "interconnects", "#interconnect-cells")
+DEFINE_SIMPLE_PROP(iommus, "iommus", "#iommu-cells")
+DEFINE_SIMPLE_PROP(mboxes, "mboxes", "#mbox-cells")
+DEFINE_SIMPLE_PROP(io_channels, "io-channel", "#io-channel-cells")
+DEFINE_SIMPLE_PROP(interrupt_parent, "interrupt-parent", NULL)
+DEFINE_SIMPLE_PROP(dmas, "dmas", "#dma-cells")
+DEFINE_SIMPLE_PROP(power_domains, "power-domains", "#power-domain-cells")
+DEFINE_SIMPLE_PROP(hwlocks, "hwlocks", "#hwlock-cells")
+DEFINE_SIMPLE_PROP(extcon, "extcon", NULL)
+DEFINE_SIMPLE_PROP(phys, "phys", "#phy-cells")
+DEFINE_SIMPLE_PROP(pinctrl0, "pinctrl-0", NULL)
+DEFINE_SIMPLE_PROP(pinctrl1, "pinctrl-1", NULL)
+DEFINE_SIMPLE_PROP(pinctrl2, "pinctrl-2", NULL)
+DEFINE_SIMPLE_PROP(pinctrl3, "pinctrl-3", NULL)
+DEFINE_SUFFIX_PROP(regulators, "-supply", NULL)
+DEFINE_SUFFIX_PROP(gpio, "-gpio", "#gpio-cells")
+DEFINE_SUFFIX_PROP(gpios, "-gpios", "#gpio-cells")
+
+static struct device_node *parse_iommu_maps(struct device_node *np,
+ const char *prop_name, int index)
+{
+ if (strcmp(prop_name, "iommu-map"))
+ return NULL;
+
+ return of_parse_phandle(np, prop_name, (index * 4) + 1);
+}
+
+static const struct supplier_bindings of_supplier_bindings[] = {
+ { .parse_prop = parse_msm_bus_name, },
+ { .parse_prop = parse_qcom_wrapper_core, },
+ { .parse_prop = parse_qcom_any, },
+ { .parse_prop = parse_clocks, },
+ { .parse_prop = parse_interconnects, },
+ { .parse_prop = parse_iommus, },
+ { .parse_prop = parse_iommu_maps, },
+ { .parse_prop = parse_mboxes, },
+ { .parse_prop = parse_io_channels, },
+ { .parse_prop = parse_interrupt_parent, },
+ { .parse_prop = parse_dmas, },
+ { .parse_prop = parse_power_domains, },
+ { .parse_prop = parse_hwlocks, },
+ { .parse_prop = parse_extcon, },
+ { .parse_prop = parse_phys, },
+ { .parse_prop = parse_pinctrl0, },
+ { .parse_prop = parse_pinctrl1, },
+ { .parse_prop = parse_pinctrl2, },
+ { .parse_prop = parse_pinctrl3, },
+ { .parse_prop = parse_regulators, },
+ { .parse_prop = parse_gpio, },
+ { .parse_prop = parse_gpios, },
+ {}
+};
+
+/**
+ * of_link_property - Create device links to suppliers listed in a property
+ * @dev: Consumer device
+ * @con_np: The consumer device tree node which contains the property
+ * @prop_name: Name of property to be parsed
+ *
+ * This function checks if the property @prop_name that is present in the
+ * @con_np device tree node is one of the known common device tree bindings
+ * that list phandles to suppliers. If @prop_name isn't one, this function
+ * doesn't do anything.
+ *
+ * If @prop_name is one, this function attempts to create device links from the
+ * consumer device @dev to all the devices of the suppliers listed in
+ * @prop_name.
+ *
+ * Any failed attempt to create a device link will NOT result in an immediate
+ * return. of_link_property() must create links to all the available supplier
+ * devices even when attempts to create a link to one or more suppliers fail.
+ */
+static int of_link_property(struct device *dev, struct device_node *con_np,
+ const char *prop_name)
+{
+ struct device_node *phandle;
+ const struct supplier_bindings *s = of_supplier_bindings;
+ unsigned int i = 0;
+ bool matched = false;
+ int ret = 0;
+ u32 dl_flags;
+
+ if (dev->of_node == con_np)
+ dl_flags = 0;
+ else
+ dl_flags = DL_FLAG_SYNC_STATE_ONLY;
+
+ /* Do not stop at first failed link, link all available suppliers. */
+ while (!matched && s->parse_prop) {
+ while ((phandle = s->parse_prop(con_np, prop_name, i))) {
+ matched = true;
+ i++;
+ if (of_link_to_phandle(dev, phandle, dl_flags)
+ == -EAGAIN)
+ ret = -EAGAIN;
+ of_node_put(phandle);
+ }
+ s++;
+ }
+ return ret;
+}
+
+static int of_link_to_suppliers(struct device *dev,
+ struct device_node *con_np)
+{
+ struct device_node *child;
+ struct property *p;
+ int ret = 0;
+
+ for_each_property_of_node(con_np, p)
+ if (of_link_property(dev, con_np, p->name))
+ ret = -ENODEV;
+
+ for_each_available_child_of_node(con_np, child)
+ if (of_link_to_suppliers(dev, child) && !ret)
+ ret = -EAGAIN;
+
+ return ret;
+}
+
+static bool of_devlink = true;
+core_param(of_devlink, of_devlink, bool, 0);
+
+static int of_fwnode_add_links(const struct fwnode_handle *fwnode,
+ struct device *dev)
+{
+ if (!of_devlink)
+ return 0;
+
+ if (unlikely(!is_of_node(fwnode)))
+ return 0;
+
+ return of_link_to_suppliers(dev, to_of_node(fwnode));
+}
+
const struct fwnode_operations of_fwnode_ops = {
.get = of_fwnode_get,
.put = of_fwnode_put,
@@ -1001,5 +1377,6 @@ const struct fwnode_operations of_fwnode_ops = {
.graph_get_remote_endpoint = of_fwnode_graph_get_remote_endpoint,
.graph_get_port_parent = of_fwnode_graph_get_port_parent,
.graph_parse_endpoint = of_fwnode_graph_parse_endpoint,
+ .add_links = of_fwnode_add_links,
};
EXPORT_SYMBOL_GPL(of_fwnode_ops);
diff --git a/drivers/opp/of.c b/drivers/opp/of.c
index a531233..c672cdd 100644
--- a/drivers/opp/of.c
+++ b/drivers/opp/of.c
@@ -791,3 +791,63 @@ struct device_node *dev_pm_opp_get_of_node(struct dev_pm_opp *opp)
return of_node_get(opp->np);
}
EXPORT_SYMBOL_GPL(dev_pm_opp_get_of_node);
+
+/**
+ * of_dev_pm_opp_get_cpu_power() - Estimates the power of a CPU
+ * @mW: pointer to the power estimate in milli-watts
+ * @KHz: pointer to the OPP's frequency, in kilo-hertz
+ * @cpu: CPU for which power needs to be estimated
+ *
+ * Computes the power estimated by @CPU at the first OPP above @KHz (ceil),
+ * and updates @KHz and @mW accordingly.
+ *
+ * The power is estimated as P = C * V^2 * f, with C the CPU's capacitance
+ * (read from the 'dynamic-power-coefficient' devicetree binding) and V and f
+ * respectively the voltage and frequency of the OPP.
+ *
+ * Return: -ENODEV if the CPU device cannot be found, -EINVAL if the power
+ * calculation failed because of missing parameters, 0 otherwise.
+ */
+int of_dev_pm_opp_get_cpu_power(unsigned long *mW, unsigned long *KHz, int cpu)
+{
+ unsigned long mV, Hz, MHz;
+ struct device *cpu_dev;
+ struct dev_pm_opp *opp;
+ struct device_node *np;
+ u32 cap;
+ u64 tmp;
+ int ret;
+
+ cpu_dev = get_cpu_device(cpu);
+ if (!cpu_dev)
+ return -ENODEV;
+
+ np = of_node_get(cpu_dev->of_node);
+ if (!np)
+ return -EINVAL;
+
+ ret = of_property_read_u32(np, "dynamic-power-coefficient", &cap);
+ of_node_put(np);
+ if (ret)
+ return -EINVAL;
+
+ Hz = *KHz * 1000;
+ opp = dev_pm_opp_find_freq_ceil(cpu_dev, &Hz);
+ if (IS_ERR(opp))
+ return -EINVAL;
+
+ mV = dev_pm_opp_get_voltage(opp) / 1000;
+ dev_pm_opp_put(opp);
+ if (!mV)
+ return -EINVAL;
+
+ MHz = Hz / 1000000;
+ tmp = (u64)cap * mV * mV * MHz;
+ do_div(tmp, 1000000000);
+
+ *mW = (unsigned long)tmp;
+ *KHz = Hz / 1000;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(of_dev_pm_opp_get_cpu_power);
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index f65800d..65006a5 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -170,25 +170,24 @@ static inline __attribute_const__ u32 msi_mask(unsigned x)
* reliably as devices without an INTx disable bit will then generate a
* level IRQ which will never be cleared.
*/
-void __pci_msi_desc_mask_irq(struct msi_desc *desc, u32 mask, u32 flag)
+u32 __pci_msi_desc_mask_irq(struct msi_desc *desc, u32 mask, u32 flag)
{
- raw_spinlock_t *lock = &desc->dev->msi_lock;
- unsigned long flags;
+ u32 mask_bits = desc->masked;
if (pci_msi_ignore_mask || !desc->msi_attrib.maskbit)
- return;
+ return 0;
- raw_spin_lock_irqsave(lock, flags);
- desc->masked &= ~mask;
- desc->masked |= flag;
+ mask_bits &= ~mask;
+ mask_bits |= flag;
pci_write_config_dword(msi_desc_to_pci_dev(desc), desc->mask_pos,
- desc->masked);
- raw_spin_unlock_irqrestore(lock, flags);
+ mask_bits);
+
+ return mask_bits;
}
static void msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag)
{
- __pci_msi_desc_mask_irq(desc, mask, flag);
+ desc->masked = __pci_msi_desc_mask_irq(desc, mask, flag);
}
static void __iomem *pci_msix_desc_addr(struct msi_desc *desc)
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 78ae1ca..6537eab 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -829,6 +829,10 @@ static int pci_pm_suspend_noirq(struct device *dev)
}
}
+ /* if d3hot is not supported bail out */
+ if (pci_dev->no_d3hot)
+ return 0;
+
if (!pci_dev->state_saved) {
pci_save_state(pci_dev);
if (pci_power_manageable(pci_dev))
@@ -885,7 +889,8 @@ static int pci_pm_resume_noirq(struct device *dev)
if (dev_pm_smart_suspend_and_suspended(dev))
pm_runtime_set_active(dev);
- pci_pm_default_resume_early(pci_dev);
+ if (!pci_dev->no_d3hot)
+ pci_pm_default_resume_early(pci_dev);
if (pci_has_legacy_pm_support(pci_dev))
return pci_legacy_resume_early(dev);
@@ -1288,6 +1293,10 @@ static int pci_pm_runtime_suspend(struct device *dev)
return 0;
}
+ /* if d3hot is not supported bail out */
+ if (pci_dev->no_d3hot)
+ return 0;
+
if (!pci_dev->state_saved) {
pci_save_state(pci_dev);
pci_finish_runtime_suspend(pci_dev);
@@ -1302,6 +1311,10 @@ static int pci_pm_runtime_resume(struct device *dev)
struct pci_dev *pci_dev = to_pci_dev(dev);
const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+ /* we skipped d3hot processing so skip re-init */
+ if (pci_dev->no_d3hot)
+ goto skip_restore;
+
/*
* Restoring config space is necessary even if the device is not bound
* to a driver because although we left it in D0, it may have gone to
@@ -1316,6 +1329,7 @@ static int pci_pm_runtime_resume(struct device *dev)
pci_enable_wake(pci_dev, PCI_D0, false);
pci_fixup_device(pci_fixup_resume, pci_dev);
+skip_restore:
if (pm && pm->runtime_resume)
rc = pm->runtime_resume(dev);
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 97d69b9..2f72256 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -3068,6 +3068,7 @@ void pci_request_acs(void)
{
pci_acs_enable = 1;
}
+EXPORT_SYMBOL_GPL(pci_request_acs);
static const char *disable_acs_redir_param;
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 39725b7..843da72 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -2,6 +2,8 @@
#ifndef DRIVERS_PCI_H
#define DRIVERS_PCI_H
+#include <linux/android_kabi.h>
+
#define PCI_FIND_CAP_TTL 48
#define PCI_VSEC_ID_INTEL_TBT 0x1234 /* Thunderbolt */
@@ -293,6 +295,11 @@ struct pci_sriov {
u16 subsystem_device; /* VF subsystem device */
resource_size_t barsz[PCI_SRIOV_NUM_BARS]; /* VF BAR size */
bool drivers_autoprobe; /* Auto probing of VFs by driver */
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
/* pci_dev priv_flags */
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 113b7bd..4853bdb 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -348,57 +348,6 @@ static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom)
}
}
-static void pci_read_bridge_windows(struct pci_dev *bridge)
-{
- u16 io;
- u32 pmem, tmp;
-
- pci_read_config_word(bridge, PCI_IO_BASE, &io);
- if (!io) {
- pci_write_config_word(bridge, PCI_IO_BASE, 0xe0f0);
- pci_read_config_word(bridge, PCI_IO_BASE, &io);
- pci_write_config_word(bridge, PCI_IO_BASE, 0x0);
- }
- if (io)
- bridge->io_window = 1;
-
- /*
- * DECchip 21050 pass 2 errata: the bridge may miss an address
- * disconnect boundary by one PCI data phase. Workaround: do not
- * use prefetching on this device.
- */
- if (bridge->vendor == PCI_VENDOR_ID_DEC && bridge->device == 0x0001)
- return;
-
- pci_read_config_dword(bridge, PCI_PREF_MEMORY_BASE, &pmem);
- if (!pmem) {
- pci_write_config_dword(bridge, PCI_PREF_MEMORY_BASE,
- 0xffe0fff0);
- pci_read_config_dword(bridge, PCI_PREF_MEMORY_BASE, &pmem);
- pci_write_config_dword(bridge, PCI_PREF_MEMORY_BASE, 0x0);
- }
- if (!pmem)
- return;
-
- bridge->pref_window = 1;
-
- if ((pmem & PCI_PREF_RANGE_TYPE_MASK) == PCI_PREF_RANGE_TYPE_64) {
-
- /*
- * Bridge claims to have a 64-bit prefetchable memory
- * window; verify that the upper bits are actually
- * writable.
- */
- pci_read_config_dword(bridge, PCI_PREF_BASE_UPPER32, &pmem);
- pci_write_config_dword(bridge, PCI_PREF_BASE_UPPER32,
- 0xffffffff);
- pci_read_config_dword(bridge, PCI_PREF_BASE_UPPER32, &tmp);
- pci_write_config_dword(bridge, PCI_PREF_BASE_UPPER32, pmem);
- if (tmp)
- bridge->pref_64_window = 1;
- }
-}
-
static void pci_read_bridge_io(struct pci_bus *child)
{
struct pci_dev *dev = child->self;
@@ -1763,7 +1712,6 @@ int pci_setup_device(struct pci_dev *dev)
pci_read_irq(dev);
dev->transparent = ((dev->class & 0xff) == 1);
pci_read_bases(dev, 2, PCI_ROM_ADDRESS1);
- pci_read_bridge_windows(dev);
set_pcie_hotplug_bridge(dev);
pos = pci_find_capability(dev, PCI_CAP_ID_SSVID);
if (pos) {
diff --git a/drivers/pci/search.c b/drivers/pci/search.c
index 2b5f720..cf9ede9 100644
--- a/drivers/pci/search.c
+++ b/drivers/pci/search.c
@@ -111,6 +111,7 @@ int pci_for_each_dma_alias(struct pci_dev *pdev,
return ret;
}
+EXPORT_SYMBOL_GPL(pci_for_each_dma_alias);
static struct pci_bus *pci_do_find_bus(struct pci_bus *bus, unsigned char busnr)
{
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 87c8190..8e5b00a4 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -735,21 +735,58 @@ int pci_claim_bridge_resource(struct pci_dev *bridge, int i)
base/limit registers must be read-only and read as 0. */
static void pci_bridge_check_ranges(struct pci_bus *bus)
{
+ u16 io;
+ u32 pmem;
struct pci_dev *bridge = bus->self;
- struct resource *b_res = &bridge->resource[PCI_BRIDGE_RESOURCES];
+ struct resource *b_res;
+ b_res = &bridge->resource[PCI_BRIDGE_RESOURCES];
b_res[1].flags |= IORESOURCE_MEM;
- if (bridge->io_window)
+ pci_read_config_word(bridge, PCI_IO_BASE, &io);
+ if (!io) {
+ pci_write_config_word(bridge, PCI_IO_BASE, 0xe0f0);
+ pci_read_config_word(bridge, PCI_IO_BASE, &io);
+ pci_write_config_word(bridge, PCI_IO_BASE, 0x0);
+ }
+ if (io)
b_res[0].flags |= IORESOURCE_IO;
- if (bridge->pref_window) {
+ /* DECchip 21050 pass 2 errata: the bridge may miss an address
+ disconnect boundary by one PCI data phase.
+ Workaround: do not use prefetching on this device. */
+ if (bridge->vendor == PCI_VENDOR_ID_DEC && bridge->device == 0x0001)
+ return;
+
+ pci_read_config_dword(bridge, PCI_PREF_MEMORY_BASE, &pmem);
+ if (!pmem) {
+ pci_write_config_dword(bridge, PCI_PREF_MEMORY_BASE,
+ 0xffe0fff0);
+ pci_read_config_dword(bridge, PCI_PREF_MEMORY_BASE, &pmem);
+ pci_write_config_dword(bridge, PCI_PREF_MEMORY_BASE, 0x0);
+ }
+ if (pmem) {
b_res[2].flags |= IORESOURCE_MEM | IORESOURCE_PREFETCH;
- if (bridge->pref_64_window) {
+ if ((pmem & PCI_PREF_RANGE_TYPE_MASK) ==
+ PCI_PREF_RANGE_TYPE_64) {
b_res[2].flags |= IORESOURCE_MEM_64;
b_res[2].flags |= PCI_PREF_RANGE_TYPE_64;
}
}
+
+ /* double check if bridge does support 64 bit pref */
+ if (b_res[2].flags & IORESOURCE_MEM_64) {
+ u32 mem_base_hi, tmp;
+ pci_read_config_dword(bridge, PCI_PREF_BASE_UPPER32,
+ &mem_base_hi);
+ pci_write_config_dword(bridge, PCI_PREF_BASE_UPPER32,
+ 0xffffffff);
+ pci_read_config_dword(bridge, PCI_PREF_BASE_UPPER32, &tmp);
+ if (!tmp)
+ b_res[2].flags &= ~IORESOURCE_MEM_64;
+ pci_write_config_dword(bridge, PCI_PREF_BASE_UPPER32,
+ mem_base_hi);
+ }
}
/* Helper function for sizing routines: find first available
diff --git a/drivers/platform/x86/intel_cht_int33fe.c b/drivers/platform/x86/intel_cht_int33fe.c
index f40b1c19..13eeb10 100644
--- a/drivers/platform/x86/intel_cht_int33fe.c
+++ b/drivers/platform/x86/intel_cht_int33fe.c
@@ -35,7 +35,7 @@ struct cht_int33fe_data {
struct i2c_client *fusb302;
struct i2c_client *pi3usb30532;
/* Contain a list-head must be per device */
- struct device_connection connections[5];
+ struct device_connection connections[4];
};
/*
@@ -176,17 +176,14 @@ static int cht_int33fe_probe(struct platform_device *pdev)
}
data->connections[0].endpoint[0] = "port0";
- data->connections[0].endpoint[1] = "i2c-pi3usb30532";
- data->connections[0].id = "typec-switch";
+ data->connections[0].endpoint[1] = "i2c-pi3usb30532-switch";
+ data->connections[0].id = "orientation-switch";
data->connections[1].endpoint[0] = "port0";
- data->connections[1].endpoint[1] = "i2c-pi3usb30532";
- data->connections[1].id = "typec-mux";
- data->connections[2].endpoint[0] = "port0";
- data->connections[2].endpoint[1] = "i2c-pi3usb30532";
- data->connections[2].id = "idff01m01";
- data->connections[3].endpoint[0] = "i2c-fusb302";
- data->connections[3].endpoint[1] = "intel_xhci_usb_sw-role-switch";
- data->connections[3].id = "usb-role-switch";
+ data->connections[1].endpoint[1] = "i2c-pi3usb30532-mux";
+ data->connections[1].id = "mode-switch";
+ data->connections[2].endpoint[0] = "i2c-fusb302";
+ data->connections[2].endpoint[1] = "intel_xhci_usb_sw-role-switch";
+ data->connections[2].id = "usb-role-switch";
device_connections_add(data->connections);
diff --git a/drivers/power/supply/power_supply_sysfs.c b/drivers/power/supply/power_supply_sysfs.c
index 5358a80..8f49aa5 100644
--- a/drivers/power/supply/power_supply_sysfs.c
+++ b/drivers/power/supply/power_supply_sysfs.c
@@ -43,7 +43,10 @@ static struct device_attribute power_supply_attrs[];
static const char * const power_supply_type_text[] = {
"Unknown", "Battery", "UPS", "Mains", "USB",
"USB_DCP", "USB_CDP", "USB_ACA", "USB_C",
- "USB_PD", "USB_PD_DRP", "BrickID"
+ "USB_PD", "USB_PD_DRP", "BrickID",
+ "USB_HVDCP", "USB_HVDCP_3", "USB_HVDCP_3P5", "Wireless", "USB_FLOAT",
+ "BMS", "Parallel", "Main", "USB_C_UFP", "USB_C_DFP",
+ "Charge_Pump",
};
static const char * const power_supply_usb_type_text[] = {
@@ -56,13 +59,13 @@ static const char * const power_supply_status_text[] = {
};
static const char * const power_supply_charge_type_text[] = {
- "Unknown", "N/A", "Trickle", "Fast"
+ "Unknown", "N/A", "Trickle", "Fast", "Taper"
};
static const char * const power_supply_health_text[] = {
"Unknown", "Good", "Overheat", "Dead", "Over voltage",
"Unspecified failure", "Cold", "Watchdog timer expire",
- "Safety timer expire"
+ "Safety timer expire", "Over current", "Warm", "Cool", "Hot"
};
static const char * const power_supply_technology_text[] = {
@@ -78,6 +81,29 @@ static const char * const power_supply_scope_text[] = {
"Unknown", "System", "Device"
};
+static const char * const power_supply_usbc_text[] = {
+ "Nothing attached", "Sink attached", "Powered cable w/ sink",
+ "Debug Accessory", "Audio Adapter", "Powered cable w/o sink",
+ "Source attached (default current)",
+ "Source attached (medium current)",
+ "Source attached (high current)",
+ "Debug Accessory Mode (default current)",
+ "Debug Accessory Mode (medium current)",
+ "Debug Accessory Mode (high current)",
+ "Non compliant",
+ "Non compliant (Rp-Default/Rp-Default)",
+ "Non compliant (Rp-1.5A/Rp-1.5A)",
+ "Non compliant (Rp-3A/Rp-3A)"
+};
+
+static const char * const power_supply_usbc_pr_text[] = {
+ "none", "dual power role", "sink", "source"
+};
+
+static const char * const power_supply_typec_src_rp_text[] = {
+ "Rp-Default", "Rp-1.5A", "Rp-3A"
+};
+
static ssize_t power_supply_show_usb_type(struct device *dev,
enum power_supply_usb_type *usb_types,
ssize_t num_usb_types,
@@ -160,6 +186,7 @@ static ssize_t power_supply_show_property(struct device *dev,
power_supply_capacity_level_text[value.intval]);
break;
case POWER_SUPPLY_PROP_TYPE:
+ case POWER_SUPPLY_PROP_REAL_TYPE:
ret = sprintf(buf, "%s\n",
power_supply_type_text[value.intval]);
break;
@@ -172,6 +199,27 @@ static ssize_t power_supply_show_property(struct device *dev,
ret = sprintf(buf, "%s\n",
power_supply_scope_text[value.intval]);
break;
+ case POWER_SUPPLY_PROP_TYPEC_MODE:
+ ret = sprintf(buf, "%s\n",
+ power_supply_usbc_text[value.intval]);
+ break;
+ case POWER_SUPPLY_PROP_TYPEC_POWER_ROLE:
+ ret = sprintf(buf, "%s\n",
+ power_supply_usbc_pr_text[value.intval]);
+ break;
+ case POWER_SUPPLY_PROP_TYPEC_SRC_RP:
+ ret = sprintf(buf, "%s\n",
+ power_supply_typec_src_rp_text[value.intval]);
+ break;
+ case POWER_SUPPLY_PROP_DIE_HEALTH:
+ case POWER_SUPPLY_PROP_SKIN_HEALTH:
+ case POWER_SUPPLY_PROP_CONNECTOR_HEALTH:
+ ret = sprintf(buf, "%s\n",
+ power_supply_health_text[value.intval]);
+ break;
+ case POWER_SUPPLY_PROP_CHARGE_COUNTER_EXT:
+ ret = sprintf(buf, "%lld\n", value.int64val);
+ break;
case POWER_SUPPLY_PROP_MODEL_NAME ... POWER_SUPPLY_PROP_SERIAL_NUMBER:
ret = sprintf(buf, "%s\n", value.strval);
break;
@@ -303,9 +351,174 @@ static struct device_attribute power_supply_attrs[] = {
POWER_SUPPLY_ATTR(precharge_current),
POWER_SUPPLY_ATTR(charge_term_current),
POWER_SUPPLY_ATTR(calibrate),
+ /* Local extensions */
+ POWER_SUPPLY_ATTR(usb_hc),
+ POWER_SUPPLY_ATTR(usb_otg),
+ POWER_SUPPLY_ATTR(charge_enabled),
+ POWER_SUPPLY_ATTR(set_ship_mode),
+ POWER_SUPPLY_ATTR(real_type),
+ POWER_SUPPLY_ATTR(charge_now_raw),
+ POWER_SUPPLY_ATTR(charge_now_error),
+ POWER_SUPPLY_ATTR(capacity_raw),
+ POWER_SUPPLY_ATTR(battery_charging_enabled),
+ POWER_SUPPLY_ATTR(charging_enabled),
+ POWER_SUPPLY_ATTR(step_charging_enabled),
+ POWER_SUPPLY_ATTR(step_charging_step),
+ POWER_SUPPLY_ATTR(pin_enabled),
+ POWER_SUPPLY_ATTR(input_suspend),
+ POWER_SUPPLY_ATTR(input_voltage_regulation),
+ POWER_SUPPLY_ATTR(input_current_max),
+ POWER_SUPPLY_ATTR(input_current_trim),
+ POWER_SUPPLY_ATTR(input_current_settled),
+ POWER_SUPPLY_ATTR(input_voltage_settled),
+ POWER_SUPPLY_ATTR(bypass_vchg_loop_debouncer),
+ POWER_SUPPLY_ATTR(charge_counter_shadow),
+ POWER_SUPPLY_ATTR(hi_power),
+ POWER_SUPPLY_ATTR(low_power),
+ POWER_SUPPLY_ATTR(temp_cool),
+ POWER_SUPPLY_ATTR(temp_warm),
+ POWER_SUPPLY_ATTR(temp_cold),
+ POWER_SUPPLY_ATTR(temp_hot),
+ POWER_SUPPLY_ATTR(system_temp_level),
+ POWER_SUPPLY_ATTR(resistance),
+ POWER_SUPPLY_ATTR(resistance_capacitive),
+ POWER_SUPPLY_ATTR(resistance_id),
+ POWER_SUPPLY_ATTR(resistance_now),
+ POWER_SUPPLY_ATTR(flash_current_max),
+ POWER_SUPPLY_ATTR(update_now),
+ POWER_SUPPLY_ATTR(esr_count),
+ POWER_SUPPLY_ATTR(buck_freq),
+ POWER_SUPPLY_ATTR(boost_current),
+ POWER_SUPPLY_ATTR(safety_timer_enabled),
+ POWER_SUPPLY_ATTR(charge_done),
+ POWER_SUPPLY_ATTR(flash_active),
+ POWER_SUPPLY_ATTR(flash_trigger),
+ POWER_SUPPLY_ATTR(force_tlim),
+ POWER_SUPPLY_ATTR(dp_dm),
+ POWER_SUPPLY_ATTR(input_current_limited),
+ POWER_SUPPLY_ATTR(input_current_now),
+ POWER_SUPPLY_ATTR(charge_qnovo_enable),
+ POWER_SUPPLY_ATTR(current_qnovo),
+ POWER_SUPPLY_ATTR(voltage_qnovo),
+ POWER_SUPPLY_ATTR(rerun_aicl),
+ POWER_SUPPLY_ATTR(cycle_count_id),
+ POWER_SUPPLY_ATTR(safety_timer_expired),
+ POWER_SUPPLY_ATTR(restricted_charging),
+ POWER_SUPPLY_ATTR(current_capability),
+ POWER_SUPPLY_ATTR(typec_mode),
+ POWER_SUPPLY_ATTR(typec_cc_orientation),
+ POWER_SUPPLY_ATTR(typec_power_role),
+ POWER_SUPPLY_ATTR(typec_src_rp),
+ POWER_SUPPLY_ATTR(pd_allowed),
+ POWER_SUPPLY_ATTR(pd_active),
+ POWER_SUPPLY_ATTR(pd_in_hard_reset),
+ POWER_SUPPLY_ATTR(pd_current_max),
+ POWER_SUPPLY_ATTR(pd_usb_suspend_supported),
+ POWER_SUPPLY_ATTR(charger_temp),
+ POWER_SUPPLY_ATTR(charger_temp_max),
+ POWER_SUPPLY_ATTR(parallel_disable),
+ POWER_SUPPLY_ATTR(pe_start),
+ POWER_SUPPLY_ATTR(soc_reporting_ready),
+ POWER_SUPPLY_ATTR(debug_battery),
+ POWER_SUPPLY_ATTR(fcc_delta),
+ POWER_SUPPLY_ATTR(icl_reduction),
+ POWER_SUPPLY_ATTR(parallel_mode),
+ POWER_SUPPLY_ATTR(die_health),
+ POWER_SUPPLY_ATTR(connector_health),
+ POWER_SUPPLY_ATTR(ctm_current_max),
+ POWER_SUPPLY_ATTR(hw_current_max),
+ POWER_SUPPLY_ATTR(pr_swap),
+ POWER_SUPPLY_ATTR(cc_step),
+ POWER_SUPPLY_ATTR(cc_step_sel),
+ POWER_SUPPLY_ATTR(sw_jeita_enabled),
+ POWER_SUPPLY_ATTR(pd_voltage_max),
+ POWER_SUPPLY_ATTR(pd_voltage_min),
+ POWER_SUPPLY_ATTR(sdp_current_max),
+ POWER_SUPPLY_ATTR(connector_type),
+ POWER_SUPPLY_ATTR(parallel_batfet_mode),
+ POWER_SUPPLY_ATTR(parallel_fcc_max),
+ POWER_SUPPLY_ATTR(min_icl),
+ POWER_SUPPLY_ATTR(moisture_detected),
+ POWER_SUPPLY_ATTR(batt_profile_version),
+ POWER_SUPPLY_ATTR(batt_full_current),
+ POWER_SUPPLY_ATTR(recharge_soc),
+ POWER_SUPPLY_ATTR(hvdcp_opti_allowed),
+ POWER_SUPPLY_ATTR(smb_en_mode),
+ POWER_SUPPLY_ATTR(smb_en_reason),
+ POWER_SUPPLY_ATTR(esr_actual),
+ POWER_SUPPLY_ATTR(esr_nominal),
+ POWER_SUPPLY_ATTR(soh),
+ POWER_SUPPLY_ATTR(clear_soh),
+ POWER_SUPPLY_ATTR(force_recharge),
+ POWER_SUPPLY_ATTR(fcc_stepper_enable),
+ POWER_SUPPLY_ATTR(toggle_stat),
+ POWER_SUPPLY_ATTR(main_fcc_max),
+ POWER_SUPPLY_ATTR(fg_reset),
+ POWER_SUPPLY_ATTR(qc_opti_disable),
+ POWER_SUPPLY_ATTR(cc_soc),
+ POWER_SUPPLY_ATTR(batt_age_level),
+ POWER_SUPPLY_ATTR(scale_mode_en),
+ POWER_SUPPLY_ATTR(voltage_vph),
+ POWER_SUPPLY_ATTR(chip_version),
+ POWER_SUPPLY_ATTR(therm_icl_limit),
+ POWER_SUPPLY_ATTR(dc_reset),
+ POWER_SUPPLY_ATTR(voltage_max_limit),
+ POWER_SUPPLY_ATTR(real_capacity),
+ POWER_SUPPLY_ATTR(force_main_icl),
+ POWER_SUPPLY_ATTR(force_main_fcc),
+ POWER_SUPPLY_ATTR(comp_clamp_level),
+ POWER_SUPPLY_ATTR(adapter_cc_mode),
+ POWER_SUPPLY_ATTR(skin_health),
+ POWER_SUPPLY_ATTR(charge_disable),
+ POWER_SUPPLY_ATTR(adapter_details),
+ POWER_SUPPLY_ATTR(dead_battery),
+ POWER_SUPPLY_ATTR(voltage_fifo),
+ POWER_SUPPLY_ATTR(cc_uah),
+ POWER_SUPPLY_ATTR(operating_freq),
+ POWER_SUPPLY_ATTR(aicl_delay),
+ POWER_SUPPLY_ATTR(aicl_icl),
+ POWER_SUPPLY_ATTR(rtx),
+ POWER_SUPPLY_ATTR(cutoff_soc),
+ POWER_SUPPLY_ATTR(sys_soc),
+ POWER_SUPPLY_ATTR(batt_soc),
+ /* Capacity Estimation */
+ POWER_SUPPLY_ATTR(batt_ce_ctrl),
+ POWER_SUPPLY_ATTR(batt_ce_full),
+ /* Resistance Estimaton */
+ POWER_SUPPLY_ATTR(resistance_avg),
+ POWER_SUPPLY_ATTR(batt_res_filt_cnts),
+ POWER_SUPPLY_ATTR(aicl_done),
+ POWER_SUPPLY_ATTR(voltage_step),
+ POWER_SUPPLY_ATTR(otg_fastroleswap),
+ POWER_SUPPLY_ATTR(apsd_rerun),
+ POWER_SUPPLY_ATTR(apsd_timeout),
+ /* Charge pump properties */
+ POWER_SUPPLY_ATTR(cp_status1),
+ POWER_SUPPLY_ATTR(cp_status2),
+ POWER_SUPPLY_ATTR(cp_enable),
+ POWER_SUPPLY_ATTR(cp_switcher_en),
+ POWER_SUPPLY_ATTR(cp_die_temp),
+ POWER_SUPPLY_ATTR(cp_isns),
+ POWER_SUPPLY_ATTR(cp_isns_slave),
+ POWER_SUPPLY_ATTR(cp_toggle_switcher),
+ POWER_SUPPLY_ATTR(cp_irq_status),
+ POWER_SUPPLY_ATTR(cp_ilim),
+ POWER_SUPPLY_ATTR(irq_status),
+ POWER_SUPPLY_ATTR(parallel_output_mode),
+ POWER_SUPPLY_ATTR(alignment),
+ POWER_SUPPLY_ATTR(moisture_detection_enabled),
+ POWER_SUPPLY_ATTR(cc_toggle_enable),
+ POWER_SUPPLY_ATTR(fg_type),
+ POWER_SUPPLY_ATTR(charger_status),
+ /* Local extensions of type int64_t */
+ POWER_SUPPLY_ATTR(charge_counter_ext),
+ POWER_SUPPLY_ATTR(charge_charger_state),
/* Properties of type `const char *' */
POWER_SUPPLY_ATTR(model_name),
+ POWER_SUPPLY_ATTR(ptmc_id),
POWER_SUPPLY_ATTR(manufacturer),
+ POWER_SUPPLY_ATTR(battery_type),
+ POWER_SUPPLY_ATTR(cycle_counts),
POWER_SUPPLY_ATTR(serial_number),
};
@@ -402,6 +615,12 @@ int power_supply_uevent(struct device *dev, struct kobj_uevent_env *env)
attr = &power_supply_attrs[psy->desc->properties[j]];
+ if (!attr->attr.name) {
+ dev_info(dev, "%s:%d FAKE attr.name=NULL skip\n",
+ __FILE__, __LINE__);
+ continue;
+ }
+
ret = power_supply_show_property(dev, attr, prop_buf);
if (ret == -ENODEV || ret == -ENODATA) {
/* When a battery is absent, we expect -ENODEV. Don't abort;
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index b1b74cfb..4b6c062 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -294,6 +294,7 @@ int pwmchip_add_with_polarity(struct pwm_chip *chip,
pwm->pwm = chip->base + i;
pwm->hwpwm = i;
pwm->state.polarity = polarity;
+ pwm->state.output_type = PWM_OUTPUT_FIXED;
if (chip->ops->get_state)
chip->ops->get_state(chip, pwm, &pwm->state);
@@ -507,11 +508,46 @@ int pwm_apply_state(struct pwm_device *pwm, struct pwm_state *state)
pwm->state.polarity = state->polarity;
}
+ if (state->output_type != pwm->state.output_type) {
+ if (!pwm->chip->ops->set_output_type)
+ return -ENOTSUPP;
+
+ err = pwm->chip->ops->set_output_type(pwm->chip, pwm,
+ state->output_type);
+ if (err)
+ return err;
+
+ pwm->state.output_type = state->output_type;
+ }
+
+ if (state->output_pattern != pwm->state.output_pattern &&
+ state->output_pattern != NULL) {
+ if (!pwm->chip->ops->set_output_pattern)
+ return -ENOTSUPP;
+
+ err = pwm->chip->ops->set_output_pattern(pwm->chip,
+ pwm, state->output_pattern);
+ if (err)
+ return err;
+
+ pwm->state.output_pattern = state->output_pattern;
+ }
+
if (state->period != pwm->state.period ||
state->duty_cycle != pwm->state.duty_cycle) {
- err = pwm->chip->ops->config(pwm->chip, pwm,
- state->duty_cycle,
- state->period);
+ if (pwm->chip->ops->config_extend) {
+ err = pwm->chip->ops->config_extend(pwm->chip,
+ pwm, state->duty_cycle,
+ state->period);
+ } else {
+ if (state->period > UINT_MAX)
+ pr_warn("period %llu duty_cycle %llu will be truncated\n",
+ state->period,
+ state->duty_cycle);
+ err = pwm->chip->ops->config(pwm->chip, pwm,
+ state->duty_cycle,
+ state->period);
+ }
if (err)
return err;
@@ -996,8 +1032,8 @@ static void pwm_dbg_show(struct pwm_chip *chip, struct seq_file *s)
if (state.enabled)
seq_puts(s, " enabled");
- seq_printf(s, " period: %u ns", state.period);
- seq_printf(s, " duty: %u ns", state.duty_cycle);
+ seq_printf(s, " period: %llu ns", state.period);
+ seq_printf(s, " duty: %llu ns", state.duty_cycle);
seq_printf(s, " polarity: %s",
state.polarity ? "inverse" : "normal");
diff --git a/drivers/pwm/pwm-clps711x.c b/drivers/pwm/pwm-clps711x.c
index 7e16b7d..f5be116 100644
--- a/drivers/pwm/pwm-clps711x.c
+++ b/drivers/pwm/pwm-clps711x.c
@@ -48,7 +48,9 @@ static void clps711x_pwm_update_val(struct clps711x_chip *priv, u32 n, u32 v)
static unsigned int clps711x_get_duty(struct pwm_device *pwm, unsigned int v)
{
/* Duty cycle 0..15 max */
- return DIV_ROUND_CLOSEST(v * 0xf, pwm->args.period);
+ /* DIV_ROUND_CLOSEST(v * 0xf, pwm->args.period) with u64 divisor */
+ unsigned long long tmp = (v * 0xf) + do_div(pwm->args.period, 2);
+ return div64_u64(tmp, pwm->args.period);
}
static int clps711x_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm)
diff --git a/drivers/pwm/pwm-sti.c b/drivers/pwm/pwm-sti.c
index 2b7c31c..ca67401 100644
--- a/drivers/pwm/pwm-sti.c
+++ b/drivers/pwm/pwm-sti.c
@@ -375,10 +375,11 @@ static int sti_pwm_capture(struct pwm_chip *chip, struct pwm_device *pwm,
effective_ticks = clk_get_rate(pc->cpt_clk);
result->period = (high + low) * NSEC_PER_SEC;
- result->period /= effective_ticks;
+ result->period = do_div(result->period, effective_ticks);
result->duty_cycle = high * NSEC_PER_SEC;
- result->duty_cycle /= effective_ticks;
+ result->duty_cycle = do_div(result->duty_cycle,
+ effective_ticks);
break;
diff --git a/drivers/pwm/pwm-sun4i.c b/drivers/pwm/pwm-sun4i.c
index 470d4f7..0e0138f 100644
--- a/drivers/pwm/pwm-sun4i.c
+++ b/drivers/pwm/pwm-sun4i.c
@@ -252,7 +252,7 @@ static int sun4i_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
val = (duty & PWM_DTY_MASK) | PWM_PRD(period);
sun4i_pwm_writel(sun4i_pwm, val, PWM_CH_PRD(pwm->hwpwm));
sun4i_pwm->next_period[pwm->hwpwm] = jiffies +
- usecs_to_jiffies(cstate.period / 1000 + 1);
+ usecs_to_jiffies(do_div(cstate.period, 1000) + 1);
sun4i_pwm->needs_delay[pwm->hwpwm] = true;
}
diff --git a/drivers/pwm/sysfs.c b/drivers/pwm/sysfs.c
index 72bdda4..4ce97ec 100644
--- a/drivers/pwm/sysfs.c
+++ b/drivers/pwm/sysfs.c
@@ -50,7 +50,7 @@ static ssize_t period_show(struct device *child,
pwm_get_state(pwm, &state);
- return sprintf(buf, "%u\n", state.period);
+ return sprintf(buf, "%llu\n", state.period);
}
static ssize_t period_store(struct device *child,
@@ -85,7 +85,7 @@ static ssize_t duty_cycle_show(struct device *child,
pwm_get_state(pwm, &state);
- return sprintf(buf, "%u\n", state.duty_cycle);
+ return sprintf(buf, "%llu\n", state.duty_cycle);
}
static ssize_t duty_cycle_store(struct device *child,
@@ -220,7 +220,7 @@ static ssize_t capture_show(struct device *child,
if (ret)
return ret;
- return sprintf(buf, "%u %u\n", result.period, result.duty_cycle);
+ return sprintf(buf, "%llu %llu\n", result.period, result.duty_cycle);
}
static DEVICE_ATTR_RW(period);
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 329cdd3..3a9ce96 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -54,6 +54,16 @@
If unsure, say no.
+config REGULATOR_PROXY_CONSUMER
+ bool "Boot time regulator proxy consumer support"
+ help
+ This driver provides support for boot time regulator proxy requests.
+ It can enforce a specified voltage range, set a minimum current,
+ and/or keep a regulator enabled. It is needed in circumstances where
+ reducing one or more of these three quantities will cause hardware to
+ stop working if performed before the driver managing the hardware has
+ probed.
+
config REGULATOR_88PG86X
tristate "Marvell 88PG86X voltage regulators"
depends on I2C
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index bba9c48..38ba7a3 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -9,6 +9,7 @@
obj-$(CONFIG_REGULATOR_FIXED_VOLTAGE) += fixed.o
obj-$(CONFIG_REGULATOR_VIRTUAL_CONSUMER) += virtual.o
obj-$(CONFIG_REGULATOR_USERSPACE_CONSUMER) += userspace-consumer.o
+obj-$(CONFIG_REGULATOR_PROXY_CONSUMER) += proxy-consumer.o
obj-$(CONFIG_REGULATOR_88PG86X) += 88pg86x.o
obj-$(CONFIG_REGULATOR_88PM800) += 88pm800-regulator.o
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 088ed4e..61e9f3a 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -228,6 +228,37 @@ static void regulator_unlock_supply(struct regulator_dev *rdev)
}
/**
+ * of_get_child_regulator - get a child regulator device node
+ * based on supply name
+ * @parent: Parent device node
+ * @prop_name: Combination regulator supply name and "-supply"
+ *
+ * Traverse all child nodes.
+ * Extract the child regulator device node corresponding to the supply name.
+ * returns the device node corresponding to the regulator if found, else
+ * returns NULL.
+ */
+static struct device_node *of_get_child_regulator(struct device_node *parent,
+ const char *prop_name)
+{
+ struct device_node *regnode = NULL;
+ struct device_node *child = NULL;
+
+ for_each_child_of_node(parent, child) {
+ regnode = of_parse_phandle(child, prop_name, 0);
+
+ if (!regnode) {
+ regnode = of_get_child_regulator(child, prop_name);
+ if (regnode)
+ return regnode;
+ } else {
+ return regnode;
+ }
+ }
+ return NULL;
+}
+
+/**
* of_get_regulator - get a regulator device node based on supply name
* @dev: Device pointer for the consumer (of regulator) device
* @supply: regulator supply name
@@ -239,14 +270,18 @@ static void regulator_unlock_supply(struct regulator_dev *rdev)
static struct device_node *of_get_regulator(struct device *dev, const char *supply)
{
struct device_node *regnode = NULL;
- char prop_name[32]; /* 32 is max size of property name */
+ char prop_name[256];
dev_dbg(dev, "Looking up %s-supply from device tree\n", supply);
- snprintf(prop_name, 32, "%s-supply", supply);
+ snprintf(prop_name, sizeof(prop_name), "%s-supply", supply);
regnode = of_parse_phandle(dev->of_node, prop_name, 0);
if (!regnode) {
+ regnode = of_get_child_regulator(dev->of_node, prop_name);
+ if (regnode)
+ return regnode;
+
dev_dbg(dev, "Looking up %s property in node %pOF failed\n",
prop_name, dev->of_node);
return NULL;
@@ -731,7 +766,7 @@ static int drms_uA_update(struct regulator_dev *rdev)
{
struct regulator *sibling;
int current_uA = 0, output_uV, input_uV, err;
- unsigned int mode;
+ unsigned int regulator_curr_mode, mode;
lockdep_assert_held_once(&rdev->mutex);
@@ -791,6 +826,14 @@ static int drms_uA_update(struct regulator_dev *rdev)
current_uA, input_uV, output_uV);
return err;
}
+ /* return if the same mode is requested */
+ if (rdev->desc->ops->get_mode) {
+ regulator_curr_mode = rdev->desc->ops->get_mode(rdev);
+ if (regulator_curr_mode == mode)
+ return 0;
+ } else {
+ return 0;
+ }
err = rdev->desc->ops->set_mode(rdev, mode);
if (err < 0)
@@ -4464,6 +4507,8 @@ regulator_register(const struct regulator_desc *regulator_desc,
}
rdev_init_debugfs(rdev);
+ rdev->proxy_consumer = regulator_proxy_consumer_register(dev,
+ config->of_node);
/* try to resolve regulators supply since a new one was registered */
class_for_each_device(®ulator_class, NULL, NULL,
@@ -4503,6 +4548,7 @@ void regulator_unregister(struct regulator_dev *rdev)
regulator_disable(rdev->supply);
regulator_put(rdev->supply);
}
+ regulator_proxy_consumer_unregister(rdev->proxy_consumer);
mutex_lock(®ulator_list_mutex);
debugfs_remove_recursive(rdev->debugfs);
flush_work(&rdev->disable_work.work);
@@ -4515,6 +4561,30 @@ void regulator_unregister(struct regulator_dev *rdev)
}
EXPORT_SYMBOL_GPL(regulator_unregister);
+static int regulator_sync_supply(struct device *dev, void *data)
+{
+ struct regulator_dev *rdev = dev_to_rdev(dev);
+
+ if (rdev->dev.parent != data)
+ return 0;
+
+ if (!rdev->proxy_consumer)
+ return 0;
+
+ dev_dbg(data, "Removing regulator proxy consumer requests\n");
+ regulator_proxy_consumer_unregister(rdev->proxy_consumer);
+ rdev->proxy_consumer = NULL;
+
+ return 0;
+}
+
+void regulator_sync_state(struct device *dev)
+{
+ class_for_each_device(®ulator_class, NULL, dev,
+ regulator_sync_supply);
+}
+EXPORT_SYMBOL_GPL(regulator_sync_state);
+
#ifdef CONFIG_SUSPEND
static int _regulator_suspend(struct device *dev, void *data)
{
diff --git a/drivers/regulator/proxy-consumer.c b/drivers/regulator/proxy-consumer.c
new file mode 100644
index 0000000..1e60c14
--- /dev/null
+++ b/drivers/regulator/proxy-consumer.c
@@ -0,0 +1,224 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2013-2014, 2016, The Linux Foundation. All rights reserved.
+ */
+
+#define pr_fmt(fmt) "%s: " fmt, __func__
+
+#include <linux/bitops.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/mutex.h>
+#include <linux/of.h>
+#include <linux/slab.h>
+#include <linux/regulator/consumer.h>
+#include <linux/regulator/proxy-consumer.h>
+
+struct proxy_consumer {
+ struct list_head list;
+ struct regulator *reg;
+ bool enable;
+ int min_uV;
+ int max_uV;
+ u32 current_uA;
+};
+
+static DEFINE_MUTEX(proxy_consumer_list_mutex);
+static LIST_HEAD(proxy_consumer_list);
+static bool proxy_consumers_removed;
+
+/**
+ * regulator_proxy_consumer_register() - conditionally register a proxy consumer
+ * for the specified regulator and set its boot time parameters
+ * @reg_dev: Device pointer of the regulator
+ * @reg_node: Device node pointer of the regulator
+ *
+ * Returns a struct proxy_consumer pointer corresponding to the regulator on
+ * success, ERR_PTR() if an error occurred, or NULL if no proxy consumer is
+ * needed for the regulator. This function calls
+ * regulator_get(reg_dev, "proxy") after first checking if any proxy consumer
+ * properties are present in the reg_node device node. After that, the voltage,
+ * minimum current, and/or the enable state will be set based upon the device
+ * node property values.
+ */
+struct proxy_consumer *regulator_proxy_consumer_register(struct device *reg_dev,
+ struct device_node *reg_node)
+{
+ struct proxy_consumer *consumer = NULL;
+ const char *reg_name = "";
+ u32 voltage[2] = {0};
+ int rc;
+ bool no_sync_state = !reg_dev->driver->sync_state;
+
+ /* Return immediately if no proxy consumer properties are specified. */
+ if (!of_find_property(reg_node, "qcom,proxy-consumer-enable", NULL)
+ && !of_find_property(reg_node, "qcom,proxy-consumer-voltage", NULL)
+ && !of_find_property(reg_node, "qcom,proxy-consumer-current", NULL))
+ return NULL;
+
+ mutex_lock(&proxy_consumer_list_mutex);
+
+ /* Do not register new consumers if they cannot be removed later. */
+ if (proxy_consumers_removed && no_sync_state) {
+ rc = -EPERM;
+ goto unlock;
+ }
+
+ if (dev_name(reg_dev))
+ reg_name = dev_name(reg_dev);
+
+ consumer = kzalloc(sizeof(*consumer), GFP_KERNEL);
+ if (!consumer) {
+ rc = -ENOMEM;
+ goto unlock;
+ }
+
+ INIT_LIST_HEAD(&consumer->list);
+ consumer->enable
+ = of_property_read_bool(reg_node, "qcom,proxy-consumer-enable");
+ of_property_read_u32(reg_node, "qcom,proxy-consumer-current",
+ &consumer->current_uA);
+ rc = of_property_read_u32_array(reg_node, "qcom,proxy-consumer-voltage",
+ voltage, 2);
+ if (!rc) {
+ consumer->min_uV = voltage[0];
+ consumer->max_uV = voltage[1];
+ }
+
+ dev_dbg(reg_dev, "proxy consumer request: enable=%d, voltage_range=[%d, %d] uV, min_current=%d uA\n",
+ consumer->enable, consumer->min_uV, consumer->max_uV,
+ consumer->current_uA);
+
+ consumer->reg = regulator_get(reg_dev, "proxy");
+ if (IS_ERR_OR_NULL(consumer->reg)) {
+ rc = PTR_ERR(consumer->reg);
+ pr_err("regulator_get() failed for %s, rc=%d\n", reg_name, rc);
+ goto unlock;
+ }
+
+ if (consumer->max_uV > 0 && consumer->min_uV <= consumer->max_uV) {
+ rc = regulator_set_voltage(consumer->reg, consumer->min_uV,
+ consumer->max_uV);
+ if (rc) {
+ pr_err("regulator_set_voltage %s failed, rc=%d\n",
+ reg_name, rc);
+ goto free_regulator;
+ }
+ }
+
+ if (consumer->current_uA > 0) {
+ rc = regulator_set_load(consumer->reg,
+ consumer->current_uA);
+ if (rc < 0) {
+ pr_err("regulator_set_load %s failed, rc=%d\n",
+ reg_name, rc);
+ goto remove_voltage;
+ }
+ }
+
+ if (consumer->enable) {
+ rc = regulator_enable(consumer->reg);
+ if (rc) {
+ pr_err("regulator_enable %s failed, rc=%d\n", reg_name,
+ rc);
+ goto remove_current;
+ }
+ }
+
+ if (no_sync_state)
+ list_add(&consumer->list, &proxy_consumer_list);
+ mutex_unlock(&proxy_consumer_list_mutex);
+
+ return consumer;
+
+remove_current:
+ regulator_set_load(consumer->reg, 0);
+remove_voltage:
+ regulator_set_voltage(consumer->reg, 0, INT_MAX);
+free_regulator:
+ regulator_put(consumer->reg);
+unlock:
+ kfree(consumer);
+ mutex_unlock(&proxy_consumer_list_mutex);
+ return ERR_PTR(rc);
+}
+
+/* proxy_consumer_list_mutex must be held by caller. */
+static int regulator_proxy_consumer_remove(struct proxy_consumer *consumer)
+{
+ int rc = 0;
+
+ if (consumer->enable) {
+ rc = regulator_disable(consumer->reg);
+ if (rc)
+ pr_err("regulator_disable failed, rc=%d\n", rc);
+ }
+
+ if (consumer->current_uA > 0) {
+ rc = regulator_set_load(consumer->reg, 0);
+ if (rc < 0)
+ pr_err("regulator_set_load failed, rc=%d\n",
+ rc);
+ }
+
+ if (consumer->max_uV > 0 && consumer->min_uV <= consumer->max_uV) {
+ rc = regulator_set_voltage(consumer->reg, 0, INT_MAX);
+ if (rc)
+ pr_err("regulator_set_voltage failed, rc=%d\n", rc);
+ }
+
+ regulator_put(consumer->reg);
+ list_del(&consumer->list);
+ kfree(consumer);
+
+ return rc;
+}
+
+/**
+ * regulator_proxy_consumer_unregister() - unregister a proxy consumer and
+ * remove its boot time requests
+ * @consumer: Pointer to proxy_consumer to be removed
+ *
+ * Returns 0 on success or errno on failure. This function removes all requests
+ * made by the proxy consumer in regulator_proxy_consumer_register() and then
+ * frees the consumer's resources.
+ */
+int regulator_proxy_consumer_unregister(struct proxy_consumer *consumer)
+{
+ int rc = 0;
+
+ if (IS_ERR_OR_NULL(consumer))
+ return 0;
+
+ mutex_lock(&proxy_consumer_list_mutex);
+ rc = regulator_proxy_consumer_remove(consumer);
+ mutex_unlock(&proxy_consumer_list_mutex);
+
+ return rc;
+}
+
+/*
+ * Remove all proxy requests at late_initcall_sync. The assumption is that all
+ * devices have probed at this point and made their own regulator requests.
+ */
+static int __init regulator_proxy_consumer_remove_all(void)
+{
+ struct proxy_consumer *consumer;
+ struct proxy_consumer *temp;
+
+ mutex_lock(&proxy_consumer_list_mutex);
+ proxy_consumers_removed = true;
+
+ if (!list_empty(&proxy_consumer_list))
+ pr_info("removing legacy regulator proxy consumer requests\n");
+
+ list_for_each_entry_safe(consumer, temp, &proxy_consumer_list, list) {
+ regulator_proxy_consumer_remove(consumer);
+ }
+ mutex_unlock(&proxy_consumer_list_mutex);
+
+ return 0;
+}
+late_initcall_sync(regulator_proxy_consumer_remove_all);
diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c
index 0fca4d7..8c0e76e 100644
--- a/drivers/rtc/class.c
+++ b/drivers/rtc/class.c
@@ -341,6 +341,11 @@ struct rtc_device *rtc_device_register(const char *name, struct device *dev,
dev_info(dev, "rtc core: registered %s as %s\n",
name, dev_name(&rtc->dev));
+#ifdef CONFIG_RTC_HCTOSYS_DEVICE
+ if (!strcmp(dev_name(&rtc->dev), CONFIG_RTC_HCTOSYS_DEVICE))
+ rtc_hctosys();
+#endif
+
return rtc;
exit_ida:
@@ -527,6 +532,11 @@ int __rtc_register_device(struct module *owner, struct rtc_device *rtc)
dev_info(rtc->dev.parent, "registered as %s\n",
dev_name(&rtc->dev));
+#ifdef CONFIG_RTC_HCTOSYS_DEVICE
+ if (!strcmp(dev_name(&rtc->dev), CONFIG_RTC_HCTOSYS_DEVICE))
+ rtc_hctosys();
+#endif
+
return 0;
}
EXPORT_SYMBOL_GPL(__rtc_register_device);
diff --git a/drivers/rtc/hctosys.c b/drivers/rtc/hctosys.c
index b9ec4a1..02b71af 100644
--- a/drivers/rtc/hctosys.c
+++ b/drivers/rtc/hctosys.c
@@ -24,7 +24,7 @@
* the best guess is to add 0.5s.
*/
-static int __init rtc_hctosys(void)
+int rtc_hctosys(void)
{
int err = -ENODEV;
struct rtc_time tm;
@@ -73,5 +73,3 @@ static int __init rtc_hctosys(void)
return err;
}
-
-late_initcall(rtc_hctosys);
diff --git a/drivers/rtc/rtc-core.h b/drivers/rtc/rtc-core.h
index ccc17a2..57a8a18 100644
--- a/drivers/rtc/rtc-core.h
+++ b/drivers/rtc/rtc-core.h
@@ -60,3 +60,7 @@ int rtc_add_groups(struct rtc_device *rtc, const struct attribute_group **grps)
return 0;
}
#endif
+
+#ifdef CONFIG_RTC_HCTOSYS
+extern int rtc_hctosys(void);
+#endif
diff --git a/drivers/s390/block/dasd_genhd.c b/drivers/s390/block/dasd_genhd.c
index 5542d9e..7036a6c 100644
--- a/drivers/s390/block/dasd_genhd.c
+++ b/drivers/s390/block/dasd_genhd.c
@@ -76,7 +76,7 @@ int dasd_gendisk_alloc(struct dasd_block *block)
gdp->queue = block->request_queue;
block->gdp = gdp;
set_capacity(block->gdp, 0);
- device_add_disk(&base->cdev->dev, block->gdp, NULL);
+ device_add_disk(&base->cdev->dev, block->gdp);
return 0;
}
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index 4e8aedd50..23e526c 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -685,7 +685,7 @@ dcssblk_add_store(struct device *dev, struct device_attribute *attr, const char
}
get_device(&dev_info->dev);
- device_add_disk(&dev_info->dev, dev_info->gd, NULL);
+ device_add_disk(&dev_info->dev, dev_info->gd);
switch (dev_info->segment_type) {
case SEG_TYPE_SR:
diff --git a/drivers/s390/block/scm_blk.c b/drivers/s390/block/scm_blk.c
index e018893..98f66b7 100644
--- a/drivers/s390/block/scm_blk.c
+++ b/drivers/s390/block/scm_blk.c
@@ -500,7 +500,7 @@ int scm_blk_dev_setup(struct scm_blk_dev *bdev, struct scm_device *scmdev)
/* 512 byte sectors */
set_capacity(bdev->gendisk, scmdev->size >> 9);
- device_add_disk(&scmdev->dev, bdev->gendisk, NULL);
+ device_add_disk(&scmdev->dev, bdev->gendisk);
return 0;
out_queue:
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 0191708..fc7ef62 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -279,7 +279,11 @@ int __scsi_execute(struct scsi_device *sdev, const unsigned char *cmd,
rq->cmd_len = COMMAND_SIZE(cmd[0]);
memcpy(rq->cmd, cmd, rq->cmd_len);
rq->retries = retries;
- req->timeout = timeout;
+ if (likely(!sdev->timeout_override))
+ req->timeout = timeout;
+ else
+ req->timeout = sdev->timeout_override;
+
req->cmd_flags |= flags;
req->rq_flags |= rq_flags | RQF_QUIET;
@@ -2469,6 +2473,33 @@ void scsi_unblock_requests(struct Scsi_Host *shost)
}
EXPORT_SYMBOL(scsi_unblock_requests);
+/*
+ * Function: scsi_set_cmd_timeout_override()
+ *
+ * Purpose: Utility function used by low-level drivers to override
+ timeout for the scsi commands.
+ *
+ * Arguments: sdev - scsi device in question
+ * timeout - timeout in jiffies
+ *
+ * Returns: Nothing
+ *
+ * Lock status: No locks are assumed held.
+ *
+ * Notes: Some platforms might be very slow and command completion may
+ * take much longer than default scsi command timeouts.
+ * SCSI Read/Write command timeout can be changed by
+ * blk_queue_rq_timeout() but there is no option to override
+ * timeout for rest of the scsi commands. This function would
+ * would allow this.
+ */
+void scsi_set_cmd_timeout_override(struct scsi_device *sdev,
+ unsigned int timeout)
+{
+ sdev->timeout_override = timeout;
+}
+EXPORT_SYMBOL(scsi_set_cmd_timeout_override);
+
int __init scsi_init_queue(void)
{
scsi_sdb_cache = kmem_cache_create("scsi_data_buffer",
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 186f779..b9cd734 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -1291,7 +1291,8 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev)
device_enable_async_suspend(&sdev->sdev_gendev);
scsi_autopm_get_target(starget);
pm_runtime_set_active(&sdev->sdev_gendev);
- pm_runtime_forbid(&sdev->sdev_gendev);
+ if (!sdev->rpm_autosuspend)
+ pm_runtime_forbid(&sdev->sdev_gendev);
pm_runtime_enable(&sdev->sdev_gendev);
scsi_autopm_put_target(starget);
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 342352d..f4b222e 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -967,7 +967,10 @@ static int sd_setup_write_same_cmnd(struct scsi_cmnd *cmd)
sector >>= ilog2(sdp->sector_size) - 9;
nr_sectors >>= ilog2(sdp->sector_size) - 9;
- rq->timeout = SD_WRITE_SAME_TIMEOUT;
+ if (likely(!sdp->timeout_override))
+ rq->timeout = SD_WRITE_SAME_TIMEOUT;
+ else
+ rq->timeout = sdp->timeout_override;
if (sdkp->ws16 || sector > 0xffffffff || nr_sectors > 0xffff) {
cmd->cmd_len = 16;
@@ -2680,6 +2683,7 @@ sd_read_cache_type(struct scsi_disk *sdkp, unsigned char *buffer)
{
int len = 0, res;
struct scsi_device *sdp = sdkp->device;
+ struct Scsi_Host *host = sdp->host;
int dbd;
int modepage;
@@ -2711,7 +2715,10 @@ sd_read_cache_type(struct scsi_disk *sdkp, unsigned char *buffer)
dbd = 8;
} else {
modepage = 8;
- dbd = 0;
+ if (host->set_dbd_for_caching)
+ dbd = 8;
+ else
+ dbd = 0;
}
/* cautiously ask */
@@ -3348,7 +3355,11 @@ static void sd_probe_async(void *data, async_cookie_t cookie)
}
blk_pm_runtime_init(sdp->request_queue, dev);
- device_add_disk(dev, gd, NULL);
+ if (sdp->rpm_autosuspend) {
+ pm_runtime_set_autosuspend_delay(dev,
+ sdp->host->hostt->rpm_autosuspend_delay);
+ }
+ device_add_disk(dev, gd);
if (sdkp->capacity)
sd_dif_config_host(sdkp);
diff --git a/drivers/scsi/sd.h b/drivers/scsi/sd.h
index a7d4f50..32c10b8 100644
--- a/drivers/scsi/sd.h
+++ b/drivers/scsi/sd.h
@@ -117,6 +117,9 @@ struct scsi_disk {
unsigned urswrz : 1;
unsigned security : 1;
unsigned ignore_medium_access_errors : 1;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
};
#define to_scsi_disk(obj) container_of(obj,struct scsi_disk,dev)
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 6bb45ae..453f357 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -842,7 +842,11 @@ sg_common_write(Sg_fd * sfp, Sg_request * srp,
else
at_head = 1;
- srp->rq->timeout = timeout;
+ if (likely(!sdp->device->timeout_override))
+ srp->rq->timeout = timeout;
+ else
+ srp->rq->timeout = sdp->device->timeout_override;
+
kref_get(&sfp->f_ref); /* sg_rq_end_io() does kref_put(). */
blk_execute_rq_nowait(sdp->device->request_queue, sdp->disk,
srp->rq, at_head, sg_rq_end_io);
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index 84dd776..be2daf5 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -760,7 +760,7 @@ static int sr_probe(struct device *dev)
dev_set_drvdata(dev, cd);
disk->flags |= GENHD_FL_REMOVABLE;
- device_add_disk(&sdev->sdev_gendev, disk, NULL);
+ device_add_disk(&sdev->sdev_gendev, disk);
sdev_printk(KERN_DEBUG, sdev,
"Attached scsi CD-ROM %s\n", cd->cdi.name);
diff --git a/drivers/scsi/ufs/Kconfig b/drivers/scsi/ufs/Kconfig
index e09fe6a..4860a9f 100644
--- a/drivers/scsi/ufs/Kconfig
+++ b/drivers/scsi/ufs/Kconfig
@@ -109,3 +109,12 @@
Select this if you have UFS controller on Hisilicon chipset.
If unsure, say N.
+
+config SCSI_UFS_CRYPTO
+ bool "UFS Crypto Engine Support"
+ depends on SCSI_UFSHCD && BLK_INLINE_ENCRYPTION
+ help
+ Enable Crypto Engine Support in UFS.
+ Enabling this makes it possible for the kernel to use the crypto
+ capabilities of the UFS device (if present) to perform crypto
+ operations on data being transferred to/from the device.
diff --git a/drivers/scsi/ufs/Makefile b/drivers/scsi/ufs/Makefile
index 2c50f03..234a88b 100644
--- a/drivers/scsi/ufs/Makefile
+++ b/drivers/scsi/ufs/Makefile
@@ -8,3 +8,4 @@
obj-$(CONFIG_SCSI_UFSHCD_PCI) += ufshcd-pci.o
obj-$(CONFIG_SCSI_UFSHCD_PLATFORM) += ufshcd-pltfrm.o
obj-$(CONFIG_SCSI_UFS_HISI) += ufs-hisi.o
+ufshcd-core-$(CONFIG_SCSI_UFS_CRYPTO) += ufshcd-crypto.o
diff --git a/drivers/scsi/ufs/ufs-hisi.c b/drivers/scsi/ufs/ufs-hisi.c
index 2bb8bdc..0dba48e 100644
--- a/drivers/scsi/ufs/ufs-hisi.c
+++ b/drivers/scsi/ufs/ufs-hisi.c
@@ -540,6 +540,14 @@ static int ufs_hisi_init_common(struct ufs_hba *hba)
if (!host)
return -ENOMEM;
+ /*
+ * Inline crypto is currently broken with ufs-hisi because the keyslots
+ * overlap with the vendor-specific SYS CTRL registers -- and even if
+ * software uses only non-overlapping keyslots, the kernel crashes when
+ * programming a key or a UFS error occurs on the first encrypted I/O.
+ */
+ hba->quirks |= UFSHCD_QUIRK_BROKEN_CRYPTO;
+
host->hba = hba;
ufshcd_set_variant(hba, host);
diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
index 798a745..e20ac57 100644
--- a/drivers/scsi/ufs/ufs-qcom.c
+++ b/drivers/scsi/ufs/ufs-qcom.c
@@ -1098,6 +1098,13 @@ static void ufs_qcom_advertise_quirks(struct ufs_hba *hba)
| UFSHCD_QUIRK_DME_PEER_ACCESS_AUTO_MODE
| UFSHCD_QUIRK_BROKEN_PA_RXHSUNTERMCAP);
}
+
+ /*
+ * Inline crypto is currently broken with ufs-qcom at least because the
+ * device tree doesn't include the crypto registers. There are likely
+ * to be other issues that will need to be addressed too.
+ */
+ hba->quirks |= UFSHCD_QUIRK_BROKEN_CRYPTO;
}
static void ufs_qcom_set_caps(struct ufs_hba *hba)
diff --git a/drivers/scsi/ufs/ufshcd-crypto.c b/drivers/scsi/ufs/ufshcd-crypto.c
new file mode 100644
index 0000000..43d105b
--- /dev/null
+++ b/drivers/scsi/ufs/ufshcd-crypto.c
@@ -0,0 +1,508 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2019 Google LLC
+ */
+
+#include <linux/keyslot-manager.h>
+#include "ufshcd.h"
+#include "ufshcd-crypto.h"
+
+static bool ufshcd_cap_idx_valid(struct ufs_hba *hba, unsigned int cap_idx)
+{
+ return cap_idx < hba->crypto_capabilities.num_crypto_cap;
+}
+
+static u8 get_data_unit_size_mask(unsigned int data_unit_size)
+{
+ if (data_unit_size < 512 || data_unit_size > 65536 ||
+ !is_power_of_2(data_unit_size))
+ return 0;
+
+ return data_unit_size / 512;
+}
+
+static size_t get_keysize_bytes(enum ufs_crypto_key_size size)
+{
+ switch (size) {
+ case UFS_CRYPTO_KEY_SIZE_128:
+ return 16;
+ case UFS_CRYPTO_KEY_SIZE_192:
+ return 24;
+ case UFS_CRYPTO_KEY_SIZE_256:
+ return 32;
+ case UFS_CRYPTO_KEY_SIZE_512:
+ return 64;
+ default:
+ return 0;
+ }
+}
+
+int ufshcd_crypto_cap_find(struct ufs_hba *hba,
+ enum blk_crypto_mode_num crypto_mode,
+ unsigned int data_unit_size)
+{
+ enum ufs_crypto_alg ufs_alg;
+ u8 data_unit_mask;
+ int cap_idx;
+ enum ufs_crypto_key_size ufs_key_size;
+ union ufs_crypto_cap_entry *ccap_array = hba->crypto_cap_array;
+
+ if (!ufshcd_hba_is_crypto_supported(hba))
+ return -EINVAL;
+
+ switch (crypto_mode) {
+ case BLK_ENCRYPTION_MODE_AES_256_XTS:
+ ufs_alg = UFS_CRYPTO_ALG_AES_XTS;
+ ufs_key_size = UFS_CRYPTO_KEY_SIZE_256;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ data_unit_mask = get_data_unit_size_mask(data_unit_size);
+
+ for (cap_idx = 0; cap_idx < hba->crypto_capabilities.num_crypto_cap;
+ cap_idx++) {
+ if (ccap_array[cap_idx].algorithm_id == ufs_alg &&
+ (ccap_array[cap_idx].sdus_mask & data_unit_mask) &&
+ ccap_array[cap_idx].key_size == ufs_key_size)
+ return cap_idx;
+ }
+
+ return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(ufshcd_crypto_cap_find);
+
+/**
+ * ufshcd_crypto_cfg_entry_write_key - Write a key into a crypto_cfg_entry
+ *
+ * Writes the key with the appropriate format - for AES_XTS,
+ * the first half of the key is copied as is, the second half is
+ * copied with an offset halfway into the cfg->crypto_key array.
+ * For the other supported crypto algs, the key is just copied.
+ *
+ * @cfg: The crypto config to write to
+ * @key: The key to write
+ * @cap: The crypto capability (which specifies the crypto alg and key size)
+ *
+ * Returns 0 on success, or -EINVAL
+ */
+static int ufshcd_crypto_cfg_entry_write_key(union ufs_crypto_cfg_entry *cfg,
+ const u8 *key,
+ union ufs_crypto_cap_entry cap)
+{
+ size_t key_size_bytes = get_keysize_bytes(cap.key_size);
+
+ if (key_size_bytes == 0)
+ return -EINVAL;
+
+ switch (cap.algorithm_id) {
+ case UFS_CRYPTO_ALG_AES_XTS:
+ key_size_bytes *= 2;
+ if (key_size_bytes > UFS_CRYPTO_KEY_MAX_SIZE)
+ return -EINVAL;
+
+ memcpy(cfg->crypto_key, key, key_size_bytes/2);
+ memcpy(cfg->crypto_key + UFS_CRYPTO_KEY_MAX_SIZE/2,
+ key + key_size_bytes/2, key_size_bytes/2);
+ return 0;
+ case UFS_CRYPTO_ALG_BITLOCKER_AES_CBC:
+ /* fall through */
+ case UFS_CRYPTO_ALG_AES_ECB:
+ /* fall through */
+ case UFS_CRYPTO_ALG_ESSIV_AES_CBC:
+ memcpy(cfg->crypto_key, key, key_size_bytes);
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+static int ufshcd_program_key(struct ufs_hba *hba,
+ const union ufs_crypto_cfg_entry *cfg, int slot)
+{
+ int i;
+ u32 slot_offset = hba->crypto_cfg_register + slot * sizeof(*cfg);
+ int err;
+
+ ufshcd_hold(hba, false);
+
+ if (hba->vops->program_key) {
+ err = hba->vops->program_key(hba, cfg, slot);
+ goto out;
+ }
+
+ /* Clear the dword 16 */
+ ufshcd_writel(hba, 0, slot_offset + 16 * sizeof(cfg->reg_val[0]));
+ /* Ensure that CFGE is cleared before programming the key */
+ wmb();
+ for (i = 0; i < 16; i++) {
+ ufshcd_writel(hba, le32_to_cpu(cfg->reg_val[i]),
+ slot_offset + i * sizeof(cfg->reg_val[0]));
+ /* Spec says each dword in key must be written sequentially */
+ wmb();
+ }
+ /* Write dword 17 */
+ ufshcd_writel(hba, le32_to_cpu(cfg->reg_val[17]),
+ slot_offset + 17 * sizeof(cfg->reg_val[0]));
+ /* Dword 16 must be written last */
+ wmb();
+ /* Write dword 16 */
+ ufshcd_writel(hba, le32_to_cpu(cfg->reg_val[16]),
+ slot_offset + 16 * sizeof(cfg->reg_val[0]));
+ wmb();
+ err = 0;
+out:
+ ufshcd_release(hba);
+ return err;
+}
+
+static void ufshcd_clear_keyslot(struct ufs_hba *hba, int slot)
+{
+ union ufs_crypto_cfg_entry cfg = { 0 };
+ int err;
+
+ err = ufshcd_program_key(hba, &cfg, slot);
+ WARN_ON_ONCE(err);
+}
+
+/* Clear all keyslots at driver init time */
+static void ufshcd_clear_all_keyslots(struct ufs_hba *hba)
+{
+ int slot;
+
+ for (slot = 0; slot < ufshcd_num_keyslots(hba); slot++)
+ ufshcd_clear_keyslot(hba, slot);
+}
+
+static int ufshcd_crypto_keyslot_program(struct keyslot_manager *ksm,
+ const struct blk_crypto_key *key,
+ unsigned int slot)
+{
+ struct ufs_hba *hba = keyslot_manager_private(ksm);
+ int err = 0;
+ u8 data_unit_mask;
+ union ufs_crypto_cfg_entry cfg;
+ int cap_idx;
+
+ cap_idx = ufshcd_crypto_cap_find(hba, key->crypto_mode,
+ key->data_unit_size);
+
+ if (!ufshcd_is_crypto_enabled(hba) ||
+ !ufshcd_keyslot_valid(hba, slot) ||
+ !ufshcd_cap_idx_valid(hba, cap_idx))
+ return -EINVAL;
+
+ data_unit_mask = get_data_unit_size_mask(key->data_unit_size);
+
+ if (!(data_unit_mask & hba->crypto_cap_array[cap_idx].sdus_mask))
+ return -EINVAL;
+
+ memset(&cfg, 0, sizeof(cfg));
+ cfg.data_unit_size = data_unit_mask;
+ cfg.crypto_cap_idx = cap_idx;
+ cfg.config_enable |= UFS_CRYPTO_CONFIGURATION_ENABLE;
+
+ err = ufshcd_crypto_cfg_entry_write_key(&cfg, key->raw,
+ hba->crypto_cap_array[cap_idx]);
+ if (err)
+ return err;
+
+ err = ufshcd_program_key(hba, &cfg, slot);
+
+ memzero_explicit(&cfg, sizeof(cfg));
+
+ return err;
+}
+
+static int ufshcd_crypto_keyslot_evict(struct keyslot_manager *ksm,
+ const struct blk_crypto_key *key,
+ unsigned int slot)
+{
+ struct ufs_hba *hba = keyslot_manager_private(ksm);
+
+ if (!ufshcd_is_crypto_enabled(hba) ||
+ !ufshcd_keyslot_valid(hba, slot))
+ return -EINVAL;
+
+ /*
+ * Clear the crypto cfg on the device. Clearing CFGE
+ * might not be sufficient, so just clear the entire cfg.
+ */
+ ufshcd_clear_keyslot(hba, slot);
+
+ return 0;
+}
+
+/* Functions implementing UFSHCI v2.1 specification behaviour */
+void ufshcd_crypto_enable_spec(struct ufs_hba *hba)
+{
+ if (!ufshcd_hba_is_crypto_supported(hba))
+ return;
+
+ hba->caps |= UFSHCD_CAP_CRYPTO;
+
+ /* Reset might clear all keys, so reprogram all the keys. */
+ keyslot_manager_reprogram_all_keys(hba->ksm);
+}
+EXPORT_SYMBOL_GPL(ufshcd_crypto_enable_spec);
+
+void ufshcd_crypto_disable_spec(struct ufs_hba *hba)
+{
+ hba->caps &= ~UFSHCD_CAP_CRYPTO;
+}
+EXPORT_SYMBOL_GPL(ufshcd_crypto_disable_spec);
+
+static const struct keyslot_mgmt_ll_ops ufshcd_ksm_ops = {
+ .keyslot_program = ufshcd_crypto_keyslot_program,
+ .keyslot_evict = ufshcd_crypto_keyslot_evict,
+};
+
+enum blk_crypto_mode_num ufshcd_blk_crypto_mode_num_for_alg_dusize(
+ enum ufs_crypto_alg ufs_crypto_alg,
+ enum ufs_crypto_key_size key_size)
+{
+ /*
+ * This is currently the only mode that UFS and blk-crypto both support.
+ */
+ if (ufs_crypto_alg == UFS_CRYPTO_ALG_AES_XTS &&
+ key_size == UFS_CRYPTO_KEY_SIZE_256)
+ return BLK_ENCRYPTION_MODE_AES_256_XTS;
+
+ return BLK_ENCRYPTION_MODE_INVALID;
+}
+
+/**
+ * ufshcd_hba_init_crypto - Read crypto capabilities, init crypto fields in hba
+ * @hba: Per adapter instance
+ *
+ * Return: 0 if crypto was initialized or is not supported, else a -errno value.
+ */
+int ufshcd_hba_init_crypto_spec(struct ufs_hba *hba,
+ const struct keyslot_mgmt_ll_ops *ksm_ops)
+{
+ int cap_idx = 0;
+ int err = 0;
+ unsigned int crypto_modes_supported[BLK_ENCRYPTION_MODE_MAX];
+ enum blk_crypto_mode_num blk_mode_num;
+
+ /* Default to disabling crypto */
+ hba->caps &= ~UFSHCD_CAP_CRYPTO;
+
+ /* Return 0 if crypto support isn't present */
+ if (!(hba->capabilities & MASK_CRYPTO_SUPPORT) ||
+ (hba->quirks & UFSHCD_QUIRK_BROKEN_CRYPTO))
+ goto out;
+
+ /*
+ * Crypto Capabilities should never be 0, because the
+ * config_array_ptr > 04h. So we use a 0 value to indicate that
+ * crypto init failed, and can't be enabled.
+ */
+ hba->crypto_capabilities.reg_val =
+ cpu_to_le32(ufshcd_readl(hba, REG_UFS_CCAP));
+ hba->crypto_cfg_register =
+ (u32)hba->crypto_capabilities.config_array_ptr * 0x100;
+ hba->crypto_cap_array =
+ devm_kcalloc(hba->dev,
+ hba->crypto_capabilities.num_crypto_cap,
+ sizeof(hba->crypto_cap_array[0]),
+ GFP_KERNEL);
+ if (!hba->crypto_cap_array) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ memset(crypto_modes_supported, 0, sizeof(crypto_modes_supported));
+ /*
+ * Store all the capabilities now so that we don't need to repeatedly
+ * access the device each time we want to know its capabilities
+ */
+ for (cap_idx = 0; cap_idx < hba->crypto_capabilities.num_crypto_cap;
+ cap_idx++) {
+ hba->crypto_cap_array[cap_idx].reg_val =
+ cpu_to_le32(ufshcd_readl(hba,
+ REG_UFS_CRYPTOCAP +
+ cap_idx * sizeof(__le32)));
+ blk_mode_num = ufshcd_blk_crypto_mode_num_for_alg_dusize(
+ hba->crypto_cap_array[cap_idx].algorithm_id,
+ hba->crypto_cap_array[cap_idx].key_size);
+ if (blk_mode_num == BLK_ENCRYPTION_MODE_INVALID)
+ continue;
+ crypto_modes_supported[blk_mode_num] |=
+ hba->crypto_cap_array[cap_idx].sdus_mask * 512;
+ }
+
+ ufshcd_clear_all_keyslots(hba);
+
+ hba->ksm = keyslot_manager_create(hba->dev, ufshcd_num_keyslots(hba),
+ ksm_ops,
+ BLK_CRYPTO_FEATURE_STANDARD_KEYS,
+ crypto_modes_supported, hba);
+
+ if (!hba->ksm) {
+ err = -ENOMEM;
+ goto out_free_caps;
+ }
+ keyslot_manager_set_max_dun_bytes(hba->ksm, sizeof(u64));
+
+ return 0;
+
+out_free_caps:
+ devm_kfree(hba->dev, hba->crypto_cap_array);
+out:
+ /* Indicate that init failed by setting crypto_capabilities to 0 */
+ hba->crypto_capabilities.reg_val = 0;
+ return err;
+}
+EXPORT_SYMBOL_GPL(ufshcd_hba_init_crypto_spec);
+
+void ufshcd_crypto_setup_rq_keyslot_manager_spec(struct ufs_hba *hba,
+ struct request_queue *q)
+{
+ if (!ufshcd_hba_is_crypto_supported(hba) || !q)
+ return;
+
+ q->ksm = hba->ksm;
+}
+EXPORT_SYMBOL_GPL(ufshcd_crypto_setup_rq_keyslot_manager_spec);
+
+void ufshcd_crypto_destroy_rq_keyslot_manager_spec(struct ufs_hba *hba,
+ struct request_queue *q)
+{
+ keyslot_manager_destroy(hba->ksm);
+}
+EXPORT_SYMBOL_GPL(ufshcd_crypto_destroy_rq_keyslot_manager_spec);
+
+int ufshcd_prepare_lrbp_crypto_spec(struct ufs_hba *hba,
+ struct scsi_cmnd *cmd,
+ struct ufshcd_lrb *lrbp)
+{
+ struct bio_crypt_ctx *bc;
+
+ if (!bio_crypt_should_process(cmd->request)) {
+ lrbp->crypto_enable = false;
+ return 0;
+ }
+ bc = cmd->request->bio->bi_crypt_context;
+
+ if (WARN_ON(!ufshcd_is_crypto_enabled(hba))) {
+ /*
+ * Upper layer asked us to do inline encryption
+ * but that isn't enabled, so we fail this request.
+ */
+ return -EINVAL;
+ }
+ if (!ufshcd_keyslot_valid(hba, bc->bc_keyslot))
+ return -EINVAL;
+
+ lrbp->crypto_enable = true;
+ lrbp->crypto_key_slot = bc->bc_keyslot;
+ lrbp->data_unit_num = bc->bc_dun[0];
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ufshcd_prepare_lrbp_crypto_spec);
+
+/* Crypto Variant Ops Support */
+
+void ufshcd_crypto_enable(struct ufs_hba *hba)
+{
+ if (hba->crypto_vops && hba->crypto_vops->enable)
+ return hba->crypto_vops->enable(hba);
+
+ return ufshcd_crypto_enable_spec(hba);
+}
+
+void ufshcd_crypto_disable(struct ufs_hba *hba)
+{
+ if (hba->crypto_vops && hba->crypto_vops->disable)
+ return hba->crypto_vops->disable(hba);
+
+ return ufshcd_crypto_disable_spec(hba);
+}
+
+int ufshcd_hba_init_crypto(struct ufs_hba *hba)
+{
+ if (hba->crypto_vops && hba->crypto_vops->hba_init_crypto)
+ return hba->crypto_vops->hba_init_crypto(hba,
+ &ufshcd_ksm_ops);
+
+ return ufshcd_hba_init_crypto_spec(hba, &ufshcd_ksm_ops);
+}
+
+void ufshcd_crypto_setup_rq_keyslot_manager(struct ufs_hba *hba,
+ struct request_queue *q)
+{
+ if (hba->crypto_vops && hba->crypto_vops->setup_rq_keyslot_manager)
+ return hba->crypto_vops->setup_rq_keyslot_manager(hba, q);
+
+ return ufshcd_crypto_setup_rq_keyslot_manager_spec(hba, q);
+}
+
+void ufshcd_crypto_destroy_rq_keyslot_manager(struct ufs_hba *hba,
+ struct request_queue *q)
+{
+ if (hba->crypto_vops && hba->crypto_vops->destroy_rq_keyslot_manager)
+ return hba->crypto_vops->destroy_rq_keyslot_manager(hba, q);
+
+ return ufshcd_crypto_destroy_rq_keyslot_manager_spec(hba, q);
+}
+
+int ufshcd_prepare_lrbp_crypto(struct ufs_hba *hba,
+ struct scsi_cmnd *cmd,
+ struct ufshcd_lrb *lrbp)
+{
+ if (hba->crypto_vops && hba->crypto_vops->prepare_lrbp_crypto)
+ return hba->crypto_vops->prepare_lrbp_crypto(hba, cmd, lrbp);
+
+ return ufshcd_prepare_lrbp_crypto_spec(hba, cmd, lrbp);
+}
+
+int ufshcd_map_sg_crypto(struct ufs_hba *hba, struct ufshcd_lrb *lrbp)
+{
+ if (hba->crypto_vops && hba->crypto_vops->map_sg_crypto)
+ return hba->crypto_vops->map_sg_crypto(hba, lrbp);
+
+ return 0;
+}
+
+int ufshcd_complete_lrbp_crypto(struct ufs_hba *hba,
+ struct scsi_cmnd *cmd,
+ struct ufshcd_lrb *lrbp)
+{
+ if (hba->crypto_vops && hba->crypto_vops->complete_lrbp_crypto)
+ return hba->crypto_vops->complete_lrbp_crypto(hba, cmd, lrbp);
+
+ return 0;
+}
+
+void ufshcd_crypto_debug(struct ufs_hba *hba)
+{
+ if (hba->crypto_vops && hba->crypto_vops->debug)
+ hba->crypto_vops->debug(hba);
+}
+
+int ufshcd_crypto_suspend(struct ufs_hba *hba,
+ enum ufs_pm_op pm_op)
+{
+ if (hba->crypto_vops && hba->crypto_vops->suspend)
+ return hba->crypto_vops->suspend(hba, pm_op);
+
+ return 0;
+}
+
+int ufshcd_crypto_resume(struct ufs_hba *hba,
+ enum ufs_pm_op pm_op)
+{
+ if (hba->crypto_vops && hba->crypto_vops->resume)
+ return hba->crypto_vops->resume(hba, pm_op);
+
+ return 0;
+}
+
+void ufshcd_crypto_set_vops(struct ufs_hba *hba,
+ struct ufs_hba_crypto_variant_ops *crypto_vops)
+{
+ hba->crypto_vops = crypto_vops;
+}
diff --git a/drivers/scsi/ufs/ufshcd-crypto.h b/drivers/scsi/ufs/ufshcd-crypto.h
new file mode 100644
index 0000000..f223a06
--- /dev/null
+++ b/drivers/scsi/ufs/ufshcd-crypto.h
@@ -0,0 +1,175 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2019 Google LLC
+ */
+
+#ifndef _UFSHCD_CRYPTO_H
+#define _UFSHCD_CRYPTO_H
+
+#ifdef CONFIG_SCSI_UFS_CRYPTO
+#include <linux/keyslot-manager.h>
+#include "ufshcd.h"
+#include "ufshci.h"
+
+static inline int ufshcd_num_keyslots(struct ufs_hba *hba)
+{
+ return hba->crypto_capabilities.config_count + 1;
+}
+
+static inline bool ufshcd_keyslot_valid(struct ufs_hba *hba, unsigned int slot)
+{
+ /*
+ * The actual number of configurations supported is (CFGC+1), so slot
+ * numbers range from 0 to config_count inclusive.
+ */
+ return slot < ufshcd_num_keyslots(hba);
+}
+
+static inline bool ufshcd_hba_is_crypto_supported(struct ufs_hba *hba)
+{
+ return hba->crypto_capabilities.reg_val != 0;
+}
+
+static inline bool ufshcd_is_crypto_enabled(struct ufs_hba *hba)
+{
+ return hba->caps & UFSHCD_CAP_CRYPTO;
+}
+
+/* Functions implementing UFSHCI v2.1 specification behaviour */
+int ufshcd_crypto_cap_find(struct ufs_hba *hba,
+ enum blk_crypto_mode_num crypto_mode,
+ unsigned int data_unit_size);
+
+int ufshcd_prepare_lrbp_crypto_spec(struct ufs_hba *hba,
+ struct scsi_cmnd *cmd,
+ struct ufshcd_lrb *lrbp);
+
+void ufshcd_crypto_enable_spec(struct ufs_hba *hba);
+
+void ufshcd_crypto_disable_spec(struct ufs_hba *hba);
+
+struct keyslot_mgmt_ll_ops;
+int ufshcd_hba_init_crypto_spec(struct ufs_hba *hba,
+ const struct keyslot_mgmt_ll_ops *ksm_ops);
+
+void ufshcd_crypto_setup_rq_keyslot_manager_spec(struct ufs_hba *hba,
+ struct request_queue *q);
+
+void ufshcd_crypto_destroy_rq_keyslot_manager_spec(struct ufs_hba *hba,
+ struct request_queue *q);
+
+static inline bool ufshcd_lrbp_crypto_enabled(struct ufshcd_lrb *lrbp)
+{
+ return lrbp->crypto_enable;
+}
+
+/* Crypto Variant Ops Support */
+void ufshcd_crypto_enable(struct ufs_hba *hba);
+
+void ufshcd_crypto_disable(struct ufs_hba *hba);
+
+int ufshcd_hba_init_crypto(struct ufs_hba *hba);
+
+void ufshcd_crypto_setup_rq_keyslot_manager(struct ufs_hba *hba,
+ struct request_queue *q);
+
+void ufshcd_crypto_destroy_rq_keyslot_manager(struct ufs_hba *hba,
+ struct request_queue *q);
+
+int ufshcd_prepare_lrbp_crypto(struct ufs_hba *hba,
+ struct scsi_cmnd *cmd,
+ struct ufshcd_lrb *lrbp);
+
+int ufshcd_map_sg_crypto(struct ufs_hba *hba, struct ufshcd_lrb *lrbp);
+
+int ufshcd_complete_lrbp_crypto(struct ufs_hba *hba,
+ struct scsi_cmnd *cmd,
+ struct ufshcd_lrb *lrbp);
+
+void ufshcd_crypto_debug(struct ufs_hba *hba);
+
+int ufshcd_crypto_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op);
+
+int ufshcd_crypto_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op);
+
+void ufshcd_crypto_set_vops(struct ufs_hba *hba,
+ struct ufs_hba_crypto_variant_ops *crypto_vops);
+
+#else /* CONFIG_SCSI_UFS_CRYPTO */
+
+static inline bool ufshcd_keyslot_valid(struct ufs_hba *hba,
+ unsigned int slot)
+{
+ return false;
+}
+
+static inline bool ufshcd_hba_is_crypto_supported(struct ufs_hba *hba)
+{
+ return false;
+}
+
+static inline bool ufshcd_is_crypto_enabled(struct ufs_hba *hba)
+{
+ return false;
+}
+
+static inline void ufshcd_crypto_enable(struct ufs_hba *hba) { }
+
+static inline void ufshcd_crypto_disable(struct ufs_hba *hba) { }
+
+static inline int ufshcd_hba_init_crypto(struct ufs_hba *hba)
+{
+ return 0;
+}
+
+static inline void ufshcd_crypto_setup_rq_keyslot_manager(struct ufs_hba *hba,
+ struct request_queue *q) { }
+
+static inline void ufshcd_crypto_destroy_rq_keyslot_manager(struct ufs_hba *hba,
+ struct request_queue *q) { }
+
+static inline int ufshcd_prepare_lrbp_crypto(struct ufs_hba *hba,
+ struct scsi_cmnd *cmd,
+ struct ufshcd_lrb *lrbp)
+{
+ return 0;
+}
+
+static inline int ufshcd_map_sg_crypto(struct ufs_hba *hba,
+ struct ufshcd_lrb *lrbp)
+{
+ return 0;
+}
+
+static inline bool ufshcd_lrbp_crypto_enabled(struct ufshcd_lrb *lrbp)
+{
+ return false;
+}
+
+static inline int ufshcd_complete_lrbp_crypto(struct ufs_hba *hba,
+ struct scsi_cmnd *cmd,
+ struct ufshcd_lrb *lrbp)
+{
+ return 0;
+}
+
+static inline void ufshcd_crypto_debug(struct ufs_hba *hba) { }
+
+static inline int ufshcd_crypto_suspend(struct ufs_hba *hba,
+ enum ufs_pm_op pm_op)
+{
+ return 0;
+}
+
+static inline int ufshcd_crypto_resume(struct ufs_hba *hba,
+ enum ufs_pm_op pm_op)
+{
+ return 0;
+}
+
+static inline void ufshcd_crypto_set_vops(struct ufs_hba *hba,
+ struct ufs_hba_crypto_variant_ops *crypto_vops) { }
+
+#endif /* CONFIG_SCSI_UFS_CRYPTO */
+
+#endif /* _UFSHCD_CRYPTO_H */
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index b18430e..b1e6edd5 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -46,6 +46,7 @@
#include "ufs_quirks.h"
#include "unipro.h"
#include "ufs-sysfs.h"
+#include "ufshcd-crypto.h"
#define CREATE_TRACE_POINTS
#include <trace/events/ufs.h>
@@ -89,6 +90,9 @@
/* Interrupt aggregation default timeout, unit: 40us */
#define INT_AGGR_DEF_TO 0x02
+/* default delay of autosuspend: 2000 ms */
+#define RPM_AUTOSUSPEND_DELAY_MS 2000
+
#define ufshcd_toggle_vreg(_dev, _vreg, _on) \
({ \
int _ret; \
@@ -439,6 +443,8 @@ static void ufshcd_print_host_regs(struct ufs_hba *hba)
if (hba->vops && hba->vops->dbg_register_dump)
hba->vops->dbg_register_dump(hba);
+
+ ufshcd_crypto_debug(hba);
}
static
@@ -470,8 +476,11 @@ void ufshcd_print_trs(struct ufs_hba *hba, unsigned long bitmap, bool pr_prdt)
ufshcd_hex_dump("UPIU RSP: ", lrbp->ucd_rsp_ptr,
sizeof(struct utp_upiu_rsp));
- prdt_length = le16_to_cpu(
- lrbp->utr_descriptor_ptr->prd_table_length);
+ prdt_length =
+ le16_to_cpu(lrbp->utr_descriptor_ptr->prd_table_length);
+ if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN)
+ prdt_length /= hba->sg_entry_size;
+
dev_err(hba->dev,
"UPIU[%d] - PRDT - %d entries phys@0x%llx\n",
tag, prdt_length,
@@ -479,7 +488,7 @@ void ufshcd_print_trs(struct ufs_hba *hba, unsigned long bitmap, bool pr_prdt)
if (pr_prdt)
ufshcd_hex_dump("UPIU PRDT: ", lrbp->ucd_prdt_ptr,
- sizeof(struct ufshcd_sg_entry) * prdt_length);
+ hba->sg_entry_size * prdt_length);
}
}
@@ -883,7 +892,14 @@ static void ufshcd_enable_run_stop_reg(struct ufs_hba *hba)
*/
static inline void ufshcd_hba_start(struct ufs_hba *hba)
{
- ufshcd_writel(hba, CONTROLLER_ENABLE, REG_CONTROLLER_ENABLE);
+ u32 val = CONTROLLER_ENABLE;
+
+ if (ufshcd_hba_is_crypto_supported(hba)) {
+ ufshcd_crypto_enable(hba);
+ val |= CRYPTO_GENERAL_ENABLE;
+ }
+
+ ufshcd_writel(hba, val, REG_CONTROLLER_ENABLE);
}
/**
@@ -2141,7 +2157,7 @@ ufshcd_send_uic_cmd(struct ufs_hba *hba, struct uic_command *uic_cmd)
*/
static int ufshcd_map_sg(struct ufs_hba *hba, struct ufshcd_lrb *lrbp)
{
- struct ufshcd_sg_entry *prd_table;
+ struct ufshcd_sg_entry *prd;
struct scatterlist *sg;
struct scsi_cmnd *cmd;
int sg_segments;
@@ -2156,27 +2172,28 @@ static int ufshcd_map_sg(struct ufs_hba *hba, struct ufshcd_lrb *lrbp)
if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN)
lrbp->utr_descriptor_ptr->prd_table_length =
cpu_to_le16((u16)(sg_segments *
- sizeof(struct ufshcd_sg_entry)));
+ hba->sg_entry_size));
else
lrbp->utr_descriptor_ptr->prd_table_length =
cpu_to_le16((u16) (sg_segments));
- prd_table = (struct ufshcd_sg_entry *)lrbp->ucd_prdt_ptr;
+ prd = (struct ufshcd_sg_entry *)lrbp->ucd_prdt_ptr;
scsi_for_each_sg(cmd, sg, sg_segments, i) {
- prd_table[i].size =
+ prd->size =
cpu_to_le32(((u32) sg_dma_len(sg))-1);
- prd_table[i].base_addr =
+ prd->base_addr =
cpu_to_le32(lower_32_bits(sg->dma_address));
- prd_table[i].upper_addr =
+ prd->upper_addr =
cpu_to_le32(upper_32_bits(sg->dma_address));
- prd_table[i].reserved = 0;
+ prd->reserved = 0;
+ prd = (void *)prd + hba->sg_entry_size;
}
} else {
lrbp->utr_descriptor_ptr->prd_table_length = 0;
}
- return 0;
+ return ufshcd_map_sg_crypto(hba, lrbp);
}
/**
@@ -2252,9 +2269,23 @@ static void ufshcd_prepare_req_desc_hdr(struct ufshcd_lrb *lrbp,
dword_0 |= UTP_REQ_DESC_INT_CMD;
/* Transfer request descriptor header fields */
+ if (ufshcd_lrbp_crypto_enabled(lrbp)) {
+#if IS_ENABLED(CONFIG_SCSI_UFS_CRYPTO)
+ dword_0 |= UTP_REQ_DESC_CRYPTO_ENABLE_CMD;
+ dword_0 |= lrbp->crypto_key_slot;
+ req_desc->header.dword_1 =
+ cpu_to_le32(lower_32_bits(lrbp->data_unit_num));
+ req_desc->header.dword_3 =
+ cpu_to_le32(upper_32_bits(lrbp->data_unit_num));
+#endif /* CONFIG_SCSI_UFS_CRYPTO */
+ } else {
+ /* dword_1 and dword_3 are reserved, hence they are set to 0 */
+ req_desc->header.dword_1 = 0;
+ req_desc->header.dword_3 = 0;
+ }
+
req_desc->header.dword_0 = cpu_to_le32(dword_0);
- /* dword_1 is reserved, hence it is set to 0 */
- req_desc->header.dword_1 = 0;
+
/*
* assigning invalid value for command status. Controller
* updates OCS on command completion, with the command
@@ -2262,8 +2293,6 @@ static void ufshcd_prepare_req_desc_hdr(struct ufshcd_lrb *lrbp,
*/
req_desc->header.dword_2 =
cpu_to_le32(OCS_INVALID_COMMAND_STATUS);
- /* dword_3 is reserved, hence it is set to 0 */
- req_desc->header.dword_3 = 0;
req_desc->prd_table_length = 0;
}
@@ -2511,6 +2540,14 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
lrbp->task_tag = tag;
lrbp->lun = ufshcd_scsi_to_upiu_lun(cmd->device->lun);
lrbp->intr_cmd = !ufshcd_is_intr_aggr_allowed(hba) ? true : false;
+
+ err = ufshcd_prepare_lrbp_crypto(hba, cmd, lrbp);
+ if (err) {
+ ufshcd_release(hba);
+ lrbp->cmd = NULL;
+ clear_bit_unlock(tag, &hba->lrb_in_use);
+ goto out;
+ }
lrbp->req_abort_skip = false;
ufshcd_comp_scsi_upiu(hba, lrbp);
@@ -2545,6 +2582,9 @@ static int ufshcd_compose_dev_cmd(struct ufs_hba *hba,
lrbp->task_tag = tag;
lrbp->lun = 0; /* device management cmd is not specific to any LUN */
lrbp->intr_cmd = true; /* No interrupt aggregation */
+#if IS_ENABLED(CONFIG_SCSI_UFS_CRYPTO)
+ lrbp->crypto_enable = false; /* No crypto operations */
+#endif
hba->dev_cmd.type = cmd_type;
return ufshcd_comp_devman_upiu(hba, lrbp);
@@ -3375,7 +3415,7 @@ static int ufshcd_memory_alloc(struct ufs_hba *hba)
size_t utmrdl_size, utrdl_size, ucdl_size;
/* Allocate memory for UTP command descriptors */
- ucdl_size = (sizeof(struct utp_transfer_cmd_desc) * hba->nutrs);
+ ucdl_size = (sizeof_utp_transfer_cmd_desc(hba) * hba->nutrs);
hba->ucdl_base_addr = dmam_alloc_coherent(hba->dev,
ucdl_size,
&hba->ucdl_dma_addr,
@@ -3471,7 +3511,7 @@ static void ufshcd_host_memory_configure(struct ufs_hba *hba)
prdt_offset =
offsetof(struct utp_transfer_cmd_desc, prd_table);
- cmd_desc_size = sizeof(struct utp_transfer_cmd_desc);
+ cmd_desc_size = sizeof_utp_transfer_cmd_desc(hba);
cmd_desc_dma_addr = hba->ucdl_dma_addr;
for (i = 0; i < hba->nutrs; i++) {
@@ -3503,17 +3543,17 @@ static void ufshcd_host_memory_configure(struct ufs_hba *hba)
hba->lrb[i].utr_descriptor_ptr = (utrdlp + i);
hba->lrb[i].utrd_dma_addr = hba->utrdl_dma_addr +
(i * sizeof(struct utp_transfer_req_desc));
- hba->lrb[i].ucd_req_ptr =
- (struct utp_upiu_req *)(cmd_descp + i);
+ hba->lrb[i].ucd_req_ptr = (struct utp_upiu_req *)cmd_descp;
hba->lrb[i].ucd_req_dma_addr = cmd_desc_element_addr;
hba->lrb[i].ucd_rsp_ptr =
- (struct utp_upiu_rsp *)cmd_descp[i].response_upiu;
+ (struct utp_upiu_rsp *)cmd_descp->response_upiu;
hba->lrb[i].ucd_rsp_dma_addr = cmd_desc_element_addr +
response_offset;
hba->lrb[i].ucd_prdt_ptr =
- (struct ufshcd_sg_entry *)cmd_descp[i].prd_table;
+ (struct ufshcd_sg_entry *)cmd_descp->prd_table;
hba->lrb[i].ucd_prdt_dma_addr = cmd_desc_element_addr +
prdt_offset;
+ cmd_descp = (void *)cmd_descp + cmd_desc_size;
}
}
@@ -4246,6 +4286,8 @@ static inline void ufshcd_hba_stop(struct ufs_hba *hba, bool can_sleep)
{
int err;
+ ufshcd_crypto_disable(hba);
+
ufshcd_writel(hba, CONTROLLER_DISABLE, REG_CONTROLLER_ENABLE);
err = ufshcd_wait_for_register(hba, REG_CONTROLLER_ENABLE,
CONTROLLER_ENABLE, CONTROLLER_DISABLE,
@@ -4638,11 +4680,17 @@ static int ufshcd_change_queue_depth(struct scsi_device *sdev, int depth)
*/
static int ufshcd_slave_configure(struct scsi_device *sdev)
{
+ struct ufs_hba *hba = shost_priv(sdev->host);
struct request_queue *q = sdev->request_queue;
blk_queue_update_dma_pad(q, PRDT_DATA_BYTE_COUNT_PAD - 1);
blk_queue_max_segment_size(q, PRDT_DATA_BYTE_COUNT_MAX);
+ if (ufshcd_is_rpm_autosuspend_allowed(hba))
+ sdev->rpm_autosuspend = 1;
+
+ ufshcd_crypto_setup_rq_keyslot_manager(hba, q);
+
return 0;
}
@@ -4653,6 +4701,7 @@ static int ufshcd_slave_configure(struct scsi_device *sdev)
static void ufshcd_slave_destroy(struct scsi_device *sdev)
{
struct ufs_hba *hba;
+ struct request_queue *q = sdev->request_queue;
hba = shost_priv(sdev->host);
/* Drop the reference as it won't be needed anymore */
@@ -4663,6 +4712,8 @@ static void ufshcd_slave_destroy(struct scsi_device *sdev)
hba->sdev_ufs_device = NULL;
spin_unlock_irqrestore(hba->host->host_lock, flags);
}
+
+ ufshcd_crypto_destroy_rq_keyslot_manager(hba, q);
}
/**
@@ -4817,6 +4868,8 @@ ufshcd_transfer_rsp_status(struct ufs_hba *hba, struct ufshcd_lrb *lrbp)
case OCS_MISMATCH_RESP_UPIU_SIZE:
case OCS_PEER_COMM_FAILURE:
case OCS_FATAL_ERROR:
+ case OCS_INVALID_CRYPTO_CONFIG:
+ case OCS_GENERAL_CRYPTO_ERROR:
default:
result |= DID_ERROR << 16;
dev_err(hba->dev,
@@ -4872,6 +4925,7 @@ static void __ufshcd_transfer_req_compl(struct ufs_hba *hba,
result = ufshcd_transfer_rsp_status(hba, lrbp);
scsi_dma_unmap(cmd);
cmd->result = result;
+ ufshcd_complete_lrbp_crypto(hba, cmd, lrbp);
/* Mark completed command as NULL in LRB */
lrbp->cmd = NULL;
clear_bit_unlock(index, &hba->lrb_in_use);
@@ -6811,6 +6865,7 @@ static struct scsi_host_template ufshcd_driver_template = {
.max_host_blocked = 1,
.track_queue_depth = 1,
.sdev_groups = ufshcd_driver_groups,
+ .rpm_autosuspend_delay = RPM_AUTOSUSPEND_DELAY_MS,
};
static int ufshcd_config_vreg_load(struct device *dev, struct ufs_vreg *vreg,
@@ -7547,6 +7602,10 @@ static int ufshcd_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
req_link_state = UIC_LINK_OFF_STATE;
}
+ ret = ufshcd_crypto_suspend(hba, pm_op);
+ if (ret)
+ goto out;
+
/*
* If we can't transition into any of the low power modes
* just gate the clocks.
@@ -7650,6 +7709,7 @@ static int ufshcd_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
ufshcd_resume_clkscaling(hba);
hba->clk_gating.is_suspended = false;
ufshcd_release(hba);
+ ufshcd_crypto_resume(hba, pm_op);
out:
hba->pm_op_in_progress = 0;
return ret;
@@ -7669,9 +7729,11 @@ static int ufshcd_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
{
int ret;
enum uic_link_state old_link_state;
+ enum ufs_dev_pwr_mode old_pwr_mode;
hba->pm_op_in_progress = 1;
old_link_state = hba->uic_link_state;
+ old_pwr_mode = hba->curr_dev_pwr_mode;
ufshcd_hba_vreg_set_hpm(hba);
/* Make sure clocks are enabled before accessing controller */
@@ -7719,6 +7781,10 @@ static int ufshcd_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
goto set_old_link_state;
}
+ ret = ufshcd_crypto_resume(hba, pm_op);
+ if (ret)
+ goto set_old_dev_pwr_mode;
+
if (ufshcd_keep_autobkops_enabled_except_suspend(hba))
ufshcd_enable_auto_bkops(hba);
else
@@ -7741,6 +7807,9 @@ static int ufshcd_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
goto out;
+set_old_dev_pwr_mode:
+ if (old_pwr_mode != hba->curr_dev_pwr_mode)
+ ufshcd_set_dev_pwr_mode(hba, old_pwr_mode);
set_old_link_state:
ufshcd_link_state_transition(hba, old_link_state, 0);
vendor_suspend:
@@ -8025,6 +8094,7 @@ int ufshcd_alloc_host(struct device *dev, struct ufs_hba **hba_handle)
hba->host = host;
hba->dev = dev;
*hba_handle = hba;
+ hba->sg_entry_size = sizeof(struct ufshcd_sg_entry);
INIT_LIST_HEAD(&hba->clk_list_head);
@@ -8157,6 +8227,13 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
goto exit_gating;
}
+ /* Init crypto */
+ err = ufshcd_hba_init_crypto(hba);
+ if (err) {
+ dev_err(hba->dev, "crypto setup failed\n");
+ goto out_remove_scsi_host;
+ }
+
/* Host controller enable */
err = ufshcd_hba_enable(hba);
if (err) {
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 4554a4b7..be02ecd 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -65,6 +65,7 @@
#include <scsi/scsi_tcq.h>
#include <scsi/scsi_dbg.h>
#include <scsi/scsi_eh.h>
+#include <linux/android_kabi.h>
#include "ufs.h"
#include "ufshci.h"
@@ -167,6 +168,9 @@ struct ufs_pm_lvl_states {
* @intr_cmd: Interrupt command (doesn't participate in interrupt aggregation)
* @issue_time_stamp: time stamp for debug purposes
* @compl_time_stamp: time stamp for statistics
+ * @crypto_enable: whether or not the request needs inline crypto operations
+ * @crypto_key_slot: the key slot to use for inline crypto
+ * @data_unit_num: the data unit number for the first block for inline crypto
* @req_abort_skip: skip request abort task flag
*/
struct ufshcd_lrb {
@@ -191,6 +195,11 @@ struct ufshcd_lrb {
bool intr_cmd;
ktime_t issue_time_stamp;
ktime_t compl_time_stamp;
+#if IS_ENABLED(CONFIG_SCSI_UFS_CRYPTO)
+ bool crypto_enable;
+ u8 crypto_key_slot;
+ u64 data_unit_num;
+#endif /* CONFIG_SCSI_UFS_CRYPTO */
bool req_abort_skip;
};
@@ -272,6 +281,8 @@ struct ufs_pwr_mode_info {
struct ufs_pa_layer_attr info;
};
+union ufs_crypto_cfg_entry;
+
/**
* struct ufs_hba_variant_ops - variant specific callbacks
* @name: variant name
@@ -298,6 +309,7 @@ struct ufs_pwr_mode_info {
* @resume: called during host controller PM callback
* @dbg_register_dump: used to dump controller debug information
* @phy_initialization: used to initialize phys
+ * @program_key: program an inline encryption key into a keyslot
*/
struct ufs_hba_variant_ops {
const char *name;
@@ -326,6 +338,41 @@ struct ufs_hba_variant_ops {
int (*resume)(struct ufs_hba *, enum ufs_pm_op);
void (*dbg_register_dump)(struct ufs_hba *hba);
int (*phy_initialization)(struct ufs_hba *);
+ int (*program_key)(struct ufs_hba *hba,
+ const union ufs_crypto_cfg_entry *cfg, int slot);
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
+};
+
+struct keyslot_mgmt_ll_ops;
+struct ufs_hba_crypto_variant_ops {
+ void (*setup_rq_keyslot_manager)(struct ufs_hba *hba,
+ struct request_queue *q);
+ void (*destroy_rq_keyslot_manager)(struct ufs_hba *hba,
+ struct request_queue *q);
+ int (*hba_init_crypto)(struct ufs_hba *hba,
+ const struct keyslot_mgmt_ll_ops *ksm_ops);
+ void (*enable)(struct ufs_hba *hba);
+ void (*disable)(struct ufs_hba *hba);
+ int (*suspend)(struct ufs_hba *hba, enum ufs_pm_op pm_op);
+ int (*resume)(struct ufs_hba *hba, enum ufs_pm_op pm_op);
+ int (*debug)(struct ufs_hba *hba);
+ int (*prepare_lrbp_crypto)(struct ufs_hba *hba,
+ struct scsi_cmnd *cmd,
+ struct ufshcd_lrb *lrbp);
+ int (*map_sg_crypto)(struct ufs_hba *hba, struct ufshcd_lrb *lrbp);
+ int (*complete_lrbp_crypto)(struct ufs_hba *hba,
+ struct scsi_cmnd *cmd,
+ struct ufshcd_lrb *lrbp);
+ void *priv;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
/* clock gating state */
@@ -468,6 +515,7 @@ struct ufs_stats {
* @ufs_version: UFS Version to which controller complies
* @vops: pointer to variant specific operations
* @priv: pointer to variant specific private data
+ * @sg_entry_size: size of struct ufshcd_sg_entry (may include variant fields)
* @irq: Irq number of the controller
* @active_uic_cmd: handle of active UIC command
* @uic_cmd_mutex: mutex for uic command
@@ -502,6 +550,10 @@ struct ufs_stats {
* @is_urgent_bkops_lvl_checked: keeps track if the urgent bkops level for
* device is known or not.
* @scsi_block_reqs_cnt: reference counting for scsi block requests
+ * @crypto_capabilities: Content of crypto capabilities register (0x100)
+ * @crypto_cap_array: Array of crypto capabilities
+ * @crypto_cfg_register: Start of the crypto cfg array
+ * @ksm: the keyslot manager tied to this hba
*/
struct ufs_hba {
void __iomem *mmio_base;
@@ -549,6 +601,8 @@ struct ufs_hba {
u32 ufs_version;
struct ufs_hba_variant_ops *vops;
void *priv;
+ const struct ufs_hba_crypto_variant_ops *crypto_vops;
+ size_t sg_entry_size;
unsigned int irq;
bool is_irq_enabled;
@@ -614,6 +668,13 @@ struct ufs_hba {
* enabled via HCE register.
*/
#define UFSHCI_QUIRK_BROKEN_HCE 0x400
+
+ /*
+ * This quirk needs to be enabled if the host controller advertises
+ * inline encryption support but it doesn't work correctly.
+ */
+ #define UFSHCD_QUIRK_BROKEN_CRYPTO 0x800
+
unsigned int quirks; /* Deviations from standard UFSHCI spec. */
/* Device deviations from standard UFS device spec. */
@@ -693,6 +754,17 @@ struct ufs_hba {
* the performance of ongoing read/write operations.
*/
#define UFSHCD_CAP_KEEP_AUTO_BKOPS_ENABLED_EXCEPT_SUSPEND (1 << 5)
+ /*
+ * This capability allows host controller driver to automatically
+ * enable runtime power management by itself instead of waiting
+ * for userspace to control the power management.
+ */
+#define UFSHCD_CAP_RPM_AUTOSUSPEND (1 << 6)
+ /*
+ * This capability allows the host controller driver to use the
+ * inline crypto engine, if it is present
+ */
+#define UFSHCD_CAP_CRYPTO (1 << 7)
struct devfreq *devfreq;
struct ufs_clk_scaling clk_scaling;
@@ -704,6 +776,19 @@ struct ufs_hba {
struct rw_semaphore clk_scaling_lock;
struct ufs_desc_size desc_size;
atomic_t scsi_block_reqs_cnt;
+
+#ifdef CONFIG_SCSI_UFS_CRYPTO
+ /* crypto */
+ union ufs_crypto_capabilities crypto_capabilities;
+ union ufs_crypto_cap_entry *crypto_cap_array;
+ u32 crypto_cfg_register;
+ struct keyslot_manager *ksm;
+#endif /* CONFIG_SCSI_UFS_CRYPTO */
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
/* Returns true if clocks can be gated. Otherwise false */
@@ -723,6 +808,10 @@ static inline bool ufshcd_can_autobkops_during_suspend(struct ufs_hba *hba)
{
return hba->caps & UFSHCD_CAP_AUTO_BKOPS_SUSPEND;
}
+static inline bool ufshcd_is_rpm_autosuspend_allowed(struct ufs_hba *hba)
+{
+ return hba->caps & UFSHCD_CAP_RPM_AUTOSUSPEND;
+}
static inline bool ufshcd_is_intr_aggr_allowed(struct ufs_hba *hba)
{
diff --git a/drivers/scsi/ufs/ufshci.h b/drivers/scsi/ufs/ufshci.h
index bb5d9c7..09102e2a 100644
--- a/drivers/scsi/ufs/ufshci.h
+++ b/drivers/scsi/ufs/ufshci.h
@@ -90,6 +90,7 @@ enum {
MASK_64_ADDRESSING_SUPPORT = 0x01000000,
MASK_OUT_OF_ORDER_DATA_DELIVERY_SUPPORT = 0x02000000,
MASK_UIC_DME_TEST_MODE_SUPPORT = 0x04000000,
+ MASK_CRYPTO_SUPPORT = 0x10000000,
};
#define UFS_MASK(mask, offset) ((mask) << (offset))
@@ -143,6 +144,7 @@ enum {
#define DEVICE_FATAL_ERROR 0x800
#define CONTROLLER_FATAL_ERROR 0x10000
#define SYSTEM_BUS_FATAL_ERROR 0x20000
+#define CRYPTO_ENGINE_FATAL_ERROR 0x40000
#define UFSHCD_UIC_PWR_MASK (UIC_HIBERNATE_ENTER |\
UIC_HIBERNATE_EXIT |\
@@ -153,11 +155,13 @@ enum {
#define UFSHCD_ERROR_MASK (UIC_ERROR |\
DEVICE_FATAL_ERROR |\
CONTROLLER_FATAL_ERROR |\
- SYSTEM_BUS_FATAL_ERROR)
+ SYSTEM_BUS_FATAL_ERROR |\
+ CRYPTO_ENGINE_FATAL_ERROR)
#define INT_FATAL_ERRORS (DEVICE_FATAL_ERROR |\
CONTROLLER_FATAL_ERROR |\
- SYSTEM_BUS_FATAL_ERROR)
+ SYSTEM_BUS_FATAL_ERROR |\
+ CRYPTO_ENGINE_FATAL_ERROR)
/* HCS - Host Controller Status 30h */
#define DEVICE_PRESENT 0x1
@@ -316,6 +320,61 @@ enum {
INTERRUPT_MASK_ALL_VER_21 = 0x71FFF,
};
+/* CCAP - Crypto Capability 100h */
+union ufs_crypto_capabilities {
+ __le32 reg_val;
+ struct {
+ u8 num_crypto_cap;
+ u8 config_count;
+ u8 reserved;
+ u8 config_array_ptr;
+ };
+};
+
+enum ufs_crypto_key_size {
+ UFS_CRYPTO_KEY_SIZE_INVALID = 0x0,
+ UFS_CRYPTO_KEY_SIZE_128 = 0x1,
+ UFS_CRYPTO_KEY_SIZE_192 = 0x2,
+ UFS_CRYPTO_KEY_SIZE_256 = 0x3,
+ UFS_CRYPTO_KEY_SIZE_512 = 0x4,
+};
+
+enum ufs_crypto_alg {
+ UFS_CRYPTO_ALG_AES_XTS = 0x0,
+ UFS_CRYPTO_ALG_BITLOCKER_AES_CBC = 0x1,
+ UFS_CRYPTO_ALG_AES_ECB = 0x2,
+ UFS_CRYPTO_ALG_ESSIV_AES_CBC = 0x3,
+};
+
+/* x-CRYPTOCAP - Crypto Capability X */
+union ufs_crypto_cap_entry {
+ __le32 reg_val;
+ struct {
+ u8 algorithm_id;
+ u8 sdus_mask; /* Supported data unit size mask */
+ u8 key_size;
+ u8 reserved;
+ };
+};
+
+#define UFS_CRYPTO_CONFIGURATION_ENABLE (1 << 7)
+#define UFS_CRYPTO_KEY_MAX_SIZE 64
+/* x-CRYPTOCFG - Crypto Configuration X */
+union ufs_crypto_cfg_entry {
+ __le32 reg_val[32];
+ struct {
+ u8 crypto_key[UFS_CRYPTO_KEY_MAX_SIZE];
+ u8 data_unit_size;
+ u8 crypto_cap_idx;
+ u8 reserved_1;
+ u8 config_enable;
+ u8 reserved_multi_host;
+ u8 reserved_2;
+ u8 vsb[2];
+ u8 reserved_3[56];
+ };
+};
+
/*
* Request Descriptor Definitions
*/
@@ -337,6 +396,7 @@ enum {
UTP_NATIVE_UFS_COMMAND = 0x10000000,
UTP_DEVICE_MANAGEMENT_FUNCTION = 0x20000000,
UTP_REQ_DESC_INT_CMD = 0x01000000,
+ UTP_REQ_DESC_CRYPTO_ENABLE_CMD = 0x00800000,
};
/* UTP Transfer Request Data Direction (DD) */
@@ -356,6 +416,9 @@ enum {
OCS_PEER_COMM_FAILURE = 0x5,
OCS_ABORTED = 0x6,
OCS_FATAL_ERROR = 0x7,
+ OCS_DEVICE_FATAL_ERROR = 0x8,
+ OCS_INVALID_CRYPTO_CONFIG = 0x9,
+ OCS_GENERAL_CRYPTO_ERROR = 0xA,
OCS_INVALID_COMMAND_STATUS = 0x0F,
MASK_OCS = 0x0F,
};
@@ -377,20 +440,28 @@ struct ufshcd_sg_entry {
__le32 upper_addr;
__le32 reserved;
__le32 size;
+ /*
+ * followed by variant-specific fields if
+ * hba->sg_entry_size != sizeof(struct ufshcd_sg_entry)
+ */
};
/**
* struct utp_transfer_cmd_desc - UFS Command Descriptor structure
* @command_upiu: Command UPIU Frame address
* @response_upiu: Response UPIU Frame address
- * @prd_table: Physical Region Descriptor
+ * @prd_table: Physical Region Descriptor: an array of SG_ALL struct
+ * ufshcd_sg_entry's. Variant-specific fields may be present after each.
*/
struct utp_transfer_cmd_desc {
u8 command_upiu[ALIGNED_UPIU_SIZE];
u8 response_upiu[ALIGNED_UPIU_SIZE];
- struct ufshcd_sg_entry prd_table[SG_ALL];
+ u8 prd_table[];
};
+#define sizeof_utp_transfer_cmd_desc(hba) \
+ (sizeof(struct utp_transfer_cmd_desc) + SG_ALL * (hba)->sg_entry_size)
+
/**
* struct request_desc_header - Descriptor Header common to both UTRD and UTMRD
* @dword0: Descriptor Header DW0
diff --git a/drivers/soc/qcom/Kconfig b/drivers/soc/qcom/Kconfig
index ba79b60..a819c1e 100644
--- a/drivers/soc/qcom/Kconfig
+++ b/drivers/soc/qcom/Kconfig
@@ -4,7 +4,7 @@
menu "Qualcomm SoC drivers"
config QCOM_COMMAND_DB
- bool "Qualcomm Command DB"
+ tristate "Qualcomm Command DB"
depends on ARCH_QCOM || COMPILE_TEST
depends on OF_RESERVED_MEM
help
@@ -93,7 +93,7 @@
Say y here if you intend to boot the modem remoteproc.
config QCOM_RPMH
- bool "Qualcomm RPM-Hardened (RPMH) Communication"
+ tristate "Qualcomm RPM-Hardened (RPMH) Communication"
depends on ARCH_QCOM && ARM64 && OF || COMPILE_TEST
help
Support for communication with the hardened-RPM blocks in
diff --git a/drivers/soc/qcom/cmd-db.c b/drivers/soc/qcom/cmd-db.c
index 78d73ec..4381e99 100644
--- a/drivers/soc/qcom/cmd-db.c
+++ b/drivers/soc/qcom/cmd-db.c
@@ -2,6 +2,7 @@
/* Copyright (c) 2016-2018, The Linux Foundation. All rights reserved. */
#include <linux/kernel.h>
+#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_platform.h>
@@ -315,3 +316,5 @@ static int __init cmd_db_device_init(void)
return platform_driver_register(&cmd_db_dev_driver);
}
arch_initcall(cmd_db_device_init);
+MODULE_DESCRIPTION("Qualcomm Command DB");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/soc/qcom/rpmh-rsc.c b/drivers/soc/qcom/rpmh-rsc.c
index 519d19f..9f22f8e 100644
--- a/drivers/soc/qcom/rpmh-rsc.c
+++ b/drivers/soc/qcom/rpmh-rsc.c
@@ -724,3 +724,6 @@ static int __init rpmh_driver_init(void)
return platform_driver_register(&rpmh_driver);
}
arch_initcall(rpmh_driver_init);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Qualcomm RPM-Hardened (RPMH) Communication driver");
diff --git a/drivers/soc/tegra/Kconfig b/drivers/soc/tegra/Kconfig
index fe44816..8d05e9c 100644
--- a/drivers/soc/tegra/Kconfig
+++ b/drivers/soc/tegra/Kconfig
@@ -76,6 +76,7 @@
select PINCTRL_TEGRA210
select SOC_TEGRA_FLOWCTRL
select SOC_TEGRA_PMC
+ depends on !LTO_CLANG
help
Enable support for the NVIDIA Tegra210 SoC. Also known as Tegra X1,
the Tegra210 has four Cortex-A57 cores paired with four Cortex-A53
diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c
index 185bbdc..e054260 100644
--- a/drivers/spi/spi-rockchip.c
+++ b/drivers/spi/spi-rockchip.c
@@ -15,6 +15,7 @@
#include <linux/clk.h>
#include <linux/dmaengine.h>
+#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/pinctrl/consumer.h>
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 49f592e..3402ea1 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -2085,7 +2085,6 @@ struct spi_controller *__devm_spi_alloc_controller(struct device *dev,
ctlr = __spi_alloc_controller(dev, size, slave);
if (ctlr) {
- ctlr->devm_allocated = true;
*ptr = ctlr;
devres_add(dev, ptr);
} else {
@@ -2346,6 +2345,11 @@ int devm_spi_register_controller(struct device *dev,
}
EXPORT_SYMBOL_GPL(devm_spi_register_controller);
+static int devm_spi_match_controller(struct device *dev, void *res, void *ctlr)
+{
+ return *(struct spi_controller **)res == ctlr;
+}
+
static int __unregister(struct device *dev, void *null)
{
spi_unregister_device(to_spi_device(dev));
@@ -2392,7 +2396,8 @@ void spi_unregister_controller(struct spi_controller *ctlr)
/* Release the last reference on the controller if its driver
* has not yet been converted to devm_spi_alloc_master/slave().
*/
- if (!ctlr->devm_allocated)
+ if (!devres_find(ctlr->dev.parent, devm_spi_release_controller,
+ devm_spi_match_controller, ctlr))
put_device(&ctlr->dev);
/* free bus id */
diff --git a/drivers/staging/android/ion/Kconfig b/drivers/staging/android/ion/Kconfig
index c16dd16..3974e319 100644
--- a/drivers/staging/android/ion/Kconfig
+++ b/drivers/staging/android/ion/Kconfig
@@ -1,5 +1,5 @@
menuconfig ION
- bool "Ion Memory Manager"
+ tristate "Ion Memory Manager"
depends on HAVE_MEMBLOCK && HAS_DMA && MMU
select GENERIC_ALLOCATOR
select DMA_SHARED_BUFFER
diff --git a/drivers/staging/android/ion/Makefile b/drivers/staging/android/ion/Makefile
index bb30bf8..e99ebb8 100644
--- a/drivers/staging/android/ion/Makefile
+++ b/drivers/staging/android/ion/Makefile
@@ -1,6 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
-obj-$(CONFIG_ION) += ion.o ion-ioctl.o ion_heap.o
-obj-$(CONFIG_ION_SYSTEM_HEAP) += ion_system_heap.o ion_page_pool.o
-obj-$(CONFIG_ION_CARVEOUT_HEAP) += ion_carveout_heap.o
-obj-$(CONFIG_ION_CHUNK_HEAP) += ion_chunk_heap.o
-obj-$(CONFIG_ION_CMA_HEAP) += ion_cma_heap.o
+obj-$(CONFIG_ION) += ion-alloc.o
+CFLAGS_ion.o = -I$(src)
+ion-alloc-objs += ion.o ion-ioctl.o ion_heap.o
+ion-alloc-$(CONFIG_ION_SYSTEM_HEAP) += ion_system_heap.o ion_page_pool.o
+ion-alloc-$(CONFIG_ION_CARVEOUT_HEAP) += ion_carveout_heap.o
+ion-alloc-$(CONFIG_ION_CHUNK_HEAP) += ion_chunk_heap.o
+ion-alloc-$(CONFIG_ION_CMA_HEAP) += ion_cma_heap.o
diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c
index 45c7f82..40da0a0 100644
--- a/drivers/staging/android/ion/ion.c
+++ b/drivers/staging/android/ion/ion.c
@@ -21,6 +21,7 @@
#include <linux/miscdevice.h>
#include <linux/mm.h>
#include <linux/mm_types.h>
+#include <linux/module.h>
#include <linux/rbtree.h>
#include <linux/sched/task.h>
#include <linux/seq_file.h>
@@ -28,10 +29,13 @@
#include <linux/uaccess.h>
#include <linux/vmalloc.h>
+#define CREATE_TRACE_POINTS
+#include "ion_trace.h"
#include "ion.h"
static struct ion_device *internal_dev;
static int heap_id;
+static atomic_long_t total_heap_bytes;
/* this function should only be called while dev->lock is held */
static void ion_buffer_add(struct ion_device *dev,
@@ -59,6 +63,20 @@ static void ion_buffer_add(struct ion_device *dev,
rb_insert_color(&buffer->node, &dev->buffers);
}
+static void track_buffer_created(struct ion_buffer *buffer)
+{
+ long total = atomic_long_add_return(buffer->size, &total_heap_bytes);
+
+ trace_ion_stat(buffer->sg_table, buffer->size, total);
+}
+
+static void track_buffer_destroyed(struct ion_buffer *buffer)
+{
+ long total = atomic_long_sub_return(buffer->size, &total_heap_bytes);
+
+ trace_ion_stat(buffer->sg_table, -buffer->size, total);
+}
+
/* this function should only be called while dev->lock is held */
static struct ion_buffer *ion_buffer_create(struct ion_heap *heap,
struct ion_device *dev,
@@ -100,6 +118,7 @@ static struct ion_buffer *ion_buffer_create(struct ion_heap *heap,
mutex_lock(&dev->buffer_lock);
ion_buffer_add(dev, buffer);
mutex_unlock(&dev->buffer_lock);
+ track_buffer_created(buffer);
return buffer;
err1:
@@ -128,6 +147,7 @@ static void _ion_buffer_destroy(struct ion_buffer *buffer)
mutex_lock(&dev->buffer_lock);
rb_erase(&buffer->node, &dev->buffers);
mutex_unlock(&dev->buffer_lock);
+ track_buffer_destroyed(buffer);
if (heap->flags & ION_HEAP_FLAG_DEFER_FREE)
ion_heap_freelist_add(heap, buffer);
@@ -303,45 +323,50 @@ static void ion_dma_buf_release(struct dma_buf *dmabuf)
static void *ion_dma_buf_kmap(struct dma_buf *dmabuf, unsigned long offset)
{
struct ion_buffer *buffer = dmabuf->priv;
+ void *vaddr;
- return buffer->vaddr + offset * PAGE_SIZE;
+ if (!buffer->heap->ops->map_kernel) {
+ pr_err("%s: map kernel is not implemented by this heap.\n",
+ __func__);
+ return ERR_PTR(-ENOTTY);
+ }
+ mutex_lock(&buffer->lock);
+ vaddr = ion_buffer_kmap_get(buffer);
+ mutex_unlock(&buffer->lock);
+
+ if (IS_ERR(vaddr))
+ return vaddr;
+
+ return vaddr + offset * PAGE_SIZE;
}
static void ion_dma_buf_kunmap(struct dma_buf *dmabuf, unsigned long offset,
void *ptr)
{
+ struct ion_buffer *buffer = dmabuf->priv;
+
+ if (buffer->heap->ops->map_kernel) {
+ mutex_lock(&buffer->lock);
+ ion_buffer_kmap_put(buffer);
+ mutex_unlock(&buffer->lock);
+ }
+
}
static int ion_dma_buf_begin_cpu_access(struct dma_buf *dmabuf,
enum dma_data_direction direction)
{
struct ion_buffer *buffer = dmabuf->priv;
- void *vaddr;
struct ion_dma_buf_attachment *a;
- int ret = 0;
-
- /*
- * TODO: Move this elsewhere because we don't always need a vaddr
- */
- if (buffer->heap->ops->map_kernel) {
- mutex_lock(&buffer->lock);
- vaddr = ion_buffer_kmap_get(buffer);
- if (IS_ERR(vaddr)) {
- ret = PTR_ERR(vaddr);
- goto unlock;
- }
- mutex_unlock(&buffer->lock);
- }
mutex_lock(&buffer->lock);
list_for_each_entry(a, &buffer->attachments, list) {
dma_sync_sg_for_cpu(a->dev, a->table->sgl, a->table->nents,
direction);
}
-
-unlock:
mutex_unlock(&buffer->lock);
- return ret;
+
+ return 0;
}
static int ion_dma_buf_end_cpu_access(struct dma_buf *dmabuf,
@@ -350,12 +375,6 @@ static int ion_dma_buf_end_cpu_access(struct dma_buf *dmabuf,
struct ion_buffer *buffer = dmabuf->priv;
struct ion_dma_buf_attachment *a;
- if (buffer->heap->ops->map_kernel) {
- mutex_lock(&buffer->lock);
- ion_buffer_kmap_put(buffer);
- mutex_unlock(&buffer->lock);
- }
-
mutex_lock(&buffer->lock);
list_for_each_entry(a, &buffer->attachments, list) {
dma_sync_sg_for_device(a->dev, a->table->sgl, a->table->nents,
@@ -568,6 +587,56 @@ void ion_device_add_heap(struct ion_heap *heap)
}
EXPORT_SYMBOL(ion_device_add_heap);
+static ssize_t
+total_heaps_kb_show(struct kobject *kobj, struct kobj_attribute *attr,
+ char *buf)
+{
+ u64 size_in_bytes = atomic_long_read(&total_heap_bytes);
+
+ return sprintf(buf, "%llu\n", div_u64(size_in_bytes, 1024));
+}
+
+static ssize_t
+total_pools_kb_show(struct kobject *kobj, struct kobj_attribute *attr,
+ char *buf)
+{
+ u64 size_in_bytes = ion_page_pool_nr_pages() * PAGE_SIZE;
+
+ return sprintf(buf, "%llu\n", div_u64(size_in_bytes, 1024));
+}
+
+static struct kobj_attribute total_heaps_kb_attr =
+ __ATTR_RO(total_heaps_kb);
+
+static struct kobj_attribute total_pools_kb_attr =
+ __ATTR_RO(total_pools_kb);
+
+static struct attribute *ion_device_attrs[] = {
+ &total_heaps_kb_attr.attr,
+ &total_pools_kb_attr.attr,
+ NULL,
+};
+
+ATTRIBUTE_GROUPS(ion_device);
+
+static int ion_init_sysfs(void)
+{
+ struct kobject *ion_kobj;
+ int ret;
+
+ ion_kobj = kobject_create_and_add("ion", kernel_kobj);
+ if (!ion_kobj)
+ return -ENOMEM;
+
+ ret = sysfs_create_groups(ion_kobj, ion_device_groups);
+ if (ret) {
+ kobject_put(ion_kobj);
+ return ret;
+ }
+
+ return 0;
+}
+
static int ion_device_create(void)
{
struct ion_device *idev;
@@ -584,8 +653,13 @@ static int ion_device_create(void)
ret = misc_register(&idev->dev);
if (ret) {
pr_err("ion: failed to register misc device.\n");
- kfree(idev);
- return ret;
+ goto err_reg;
+ }
+
+ ret = ion_init_sysfs();
+ if (ret) {
+ pr_err("ion: failed to add sysfs attributes.\n");
+ goto err_sysfs;
}
idev->debug_root = debugfs_create_dir("ion", NULL);
@@ -595,5 +669,43 @@ static int ion_device_create(void)
plist_head_init(&idev->heaps);
internal_dev = idev;
return 0;
+
+err_sysfs:
+ misc_deregister(&idev->dev);
+err_reg:
+ kfree(idev);
+ return ret;
}
+
+#ifdef CONFIG_ION_MODULE
+int ion_module_init(void)
+{
+ int ret;
+
+ ret = ion_device_create();
+#ifdef CONFIG_ION_SYSTEM_HEAP
+ if (ret)
+ return ret;
+
+ ret = ion_system_heap_create();
+ if (ret)
+ return ret;
+
+ ret = ion_system_contig_heap_create();
+#endif
+#ifdef CONFIG_ION_CMA_HEAP
+ if (ret)
+ return ret;
+
+ ret = ion_add_cma_heaps();
+#endif
+ return ret;
+}
+
+module_init(ion_module_init);
+#else
subsys_initcall(ion_device_create);
+#endif
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Ion memory allocator");
diff --git a/drivers/staging/android/ion/ion.h b/drivers/staging/android/ion/ion.h
index 16cbd38..55c62c2 100644
--- a/drivers/staging/android/ion/ion.h
+++ b/drivers/staging/android/ion/ion.h
@@ -316,6 +316,12 @@ void ion_page_pool_destroy(struct ion_page_pool *pool);
struct page *ion_page_pool_alloc(struct ion_page_pool *pool);
void ion_page_pool_free(struct ion_page_pool *pool, struct page *page);
+#ifdef CONFIG_ION_SYSTEM_HEAP
+long ion_page_pool_nr_pages(void);
+#else
+static inline long ion_page_pool_nr_pages(void) { return 0; }
+#endif
+
/** ion_page_pool_shrink - shrinks the size of the memory cached in the pool
* @pool: the pool
* @gfp_mask: the memory type to reclaim
@@ -330,4 +336,9 @@ long ion_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
int ion_query_heaps(struct ion_heap_query *query);
+#ifdef CONFIG_ION_MODULE
+int ion_add_cma_heaps(void);
+int ion_system_heap_create(void);
+int ion_system_contig_heap_create(void);
+#endif
#endif /* _ION_H */
diff --git a/drivers/staging/android/ion/ion_cma_heap.c b/drivers/staging/android/ion/ion_cma_heap.c
index 3fafd01..8946d0a 100644
--- a/drivers/staging/android/ion/ion_cma_heap.c
+++ b/drivers/staging/android/ion/ion_cma_heap.c
@@ -134,9 +134,12 @@ static int __ion_add_cma_heaps(struct cma *cma, void *data)
return 0;
}
-static int ion_add_cma_heaps(void)
+int ion_add_cma_heaps(void)
{
cma_for_each_area(__ion_add_cma_heaps, NULL);
return 0;
}
+
+#ifndef CONFIG_ION_MODULE
device_initcall(ion_add_cma_heaps);
+#endif
diff --git a/drivers/staging/android/ion/ion_page_pool.c b/drivers/staging/android/ion/ion_page_pool.c
index 890d264..0ad1fb3 100644
--- a/drivers/staging/android/ion/ion_page_pool.c
+++ b/drivers/staging/android/ion/ion_page_pool.c
@@ -12,6 +12,13 @@
#include "ion.h"
+/*
+ * We avoid atomic_long_t to minimize cache flushes at the cost of possible
+ * race which would result in a small accounting inaccuracy that we can
+ * tolerate.
+ */
+static long nr_total_pages;
+
static inline struct page *ion_page_pool_alloc_pages(struct ion_page_pool *pool)
{
if (fatal_signal_pending(current))
@@ -36,8 +43,9 @@ static void ion_page_pool_add(struct ion_page_pool *pool, struct page *page)
pool->low_count++;
}
- mod_node_page_state(page_pgdat(page), NR_INDIRECTLY_RECLAIMABLE_BYTES,
- (1 << (PAGE_SHIFT + pool->order)));
+ nr_total_pages += 1 << pool->order;
+ mod_node_page_state(page_pgdat(page), NR_KERNEL_MISC_RECLAIMABLE,
+ 1 << pool->order);
mutex_unlock(&pool->mutex);
}
@@ -56,8 +64,9 @@ static struct page *ion_page_pool_remove(struct ion_page_pool *pool, bool high)
}
list_del(&page->lru);
- mod_node_page_state(page_pgdat(page), NR_INDIRECTLY_RECLAIMABLE_BYTES,
- -(1 << (PAGE_SHIFT + pool->order)));
+ nr_total_pages -= 1 << pool->order;
+ mod_node_page_state(page_pgdat(page), NR_KERNEL_MISC_RECLAIMABLE,
+ -(1 << pool->order));
return page;
}
@@ -97,6 +106,14 @@ static int ion_page_pool_total(struct ion_page_pool *pool, bool high)
return count << pool->order;
}
+long ion_page_pool_nr_pages(void)
+{
+ /* Correct possible overflow caused by racing writes */
+ if (nr_total_pages < 0)
+ nr_total_pages = 0;
+ return nr_total_pages;
+}
+
int ion_page_pool_shrink(struct ion_page_pool *pool, gfp_t gfp_mask,
int nr_to_scan)
{
diff --git a/drivers/staging/android/ion/ion_system_heap.c b/drivers/staging/android/ion/ion_system_heap.c
index 0a1b1ff..a4ae282 100644
--- a/drivers/staging/android/ion/ion_system_heap.c
+++ b/drivers/staging/android/ion/ion_system_heap.c
@@ -289,7 +289,7 @@ static struct ion_heap *__ion_system_heap_create(void)
return ERR_PTR(-ENOMEM);
}
-static int ion_system_heap_create(void)
+int ion_system_heap_create(void)
{
struct ion_heap *heap;
@@ -301,7 +301,6 @@ static int ion_system_heap_create(void)
ion_device_add_heap(heap);
return 0;
}
-device_initcall(ion_system_heap_create);
static int ion_system_contig_heap_allocate(struct ion_heap *heap,
struct ion_buffer *buffer,
@@ -383,7 +382,7 @@ static struct ion_heap *__ion_system_contig_heap_create(void)
return heap;
}
-static int ion_system_contig_heap_create(void)
+int ion_system_contig_heap_create(void)
{
struct ion_heap *heap;
@@ -394,5 +393,8 @@ static int ion_system_contig_heap_create(void)
ion_device_add_heap(heap);
return 0;
}
-device_initcall(ion_system_contig_heap_create);
+#ifndef CONFIG_ION_MODULE
+device_initcall(ion_system_contig_heap_create);
+device_initcall(ion_system_heap_create);
+#endif
diff --git a/drivers/staging/android/ion/ion_trace.h b/drivers/staging/android/ion/ion_trace.h
new file mode 100644
index 0000000..8233691
--- /dev/null
+++ b/drivers/staging/android/ion/ion_trace.h
@@ -0,0 +1,55 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * drivers/staging/android/ion/ion-trace.h
+ *
+ * Copyright (C) 2020 Google, Inc.
+ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM ion
+
+#if !defined(_ION_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _ION_TRACE_H
+
+#include <linux/tracepoint.h>
+
+#ifndef __ION_PTR_TO_HASHVAL
+static unsigned int __ion_ptr_to_hash(const void *ptr)
+{
+ unsigned long hashval;
+
+ if (ptr_to_hashval(ptr, &hashval))
+ return 0;
+
+ /* The hashed value is only 32-bit */
+ return (unsigned int)hashval;
+}
+
+#define __ION_PTR_TO_HASHVAL
+#endif
+
+TRACE_EVENT(ion_stat,
+ TP_PROTO(const void *addr, long len,
+ unsigned long total_allocated),
+ TP_ARGS(addr, len, total_allocated),
+ TP_STRUCT__entry(__field(unsigned int, buffer_id)
+ __field(long, len)
+ __field(unsigned long, total_allocated)
+ ),
+ TP_fast_assign(__entry->buffer_id = __ion_ptr_to_hash(addr);
+ __entry->len = len;
+ __entry->total_allocated = total_allocated;
+ ),
+ TP_printk("buffer_id=%u len=%ldB total_allocated=%ldB",
+ __entry->buffer_id,
+ __entry->len,
+ __entry->total_allocated)
+ );
+
+#endif /* _ION_TRACE_H */
+
+/* This part must be outside protection */
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#define TRACE_INCLUDE_FILE ion_trace
+#include <trace/define_trace.h>
diff --git a/drivers/tee/tee_shm.c b/drivers/tee/tee_shm.c
index 0b9ab1d..8e7b52a 100644
--- a/drivers/tee/tee_shm.c
+++ b/drivers/tee/tee_shm.c
@@ -263,6 +263,7 @@ struct tee_shm *tee_shm_register(struct tee_context *ctx, unsigned long addr,
shm->teedev = teedev;
shm->ctx = ctx;
shm->id = -1;
+ addr = untagged_addr(addr);
start = rounddown(addr, PAGE_SIZE);
shm->offset = addr - start;
shm->size = length;
diff --git a/drivers/thermal/cpu_cooling.c b/drivers/thermal/cpu_cooling.c
index 8592ef6..be1195f 100644
--- a/drivers/thermal/cpu_cooling.c
+++ b/drivers/thermal/cpu_cooling.c
@@ -26,11 +26,12 @@
#include <linux/thermal.h>
#include <linux/cpufreq.h>
#include <linux/err.h>
-#include <linux/idr.h>
#include <linux/pm_opp.h>
#include <linux/slab.h>
#include <linux/cpu.h>
#include <linux/cpu_cooling.h>
+#include <linux/energy_model.h>
+#include <linux/of_device.h>
#include <trace/events/thermal.h>
@@ -49,19 +50,6 @@
*/
/**
- * struct freq_table - frequency table along with power entries
- * @frequency: frequency in KHz
- * @power: power in mW
- *
- * This structure is built when the cooling device registers and helps
- * in translating frequency to power and vice versa.
- */
-struct freq_table {
- u32 frequency;
- u32 power;
-};
-
-/**
* struct time_in_idle - Idle time stats
* @time: previous reading of the absolute time that this cpu was idle
* @timestamp: wall time of the last invocation of get_cpu_idle_time_us()
@@ -82,7 +70,7 @@ struct time_in_idle {
* frequency.
* @max_level: maximum cooling level. One less than total number of valid
* cpufreq frequencies.
- * @freq_table: Freq table in descending order of frequencies
+ * @em: Reference on the Energy Model of the device
* @cdev: thermal_cooling_device pointer to keep track of the
* registered cooling device.
* @policy: cpufreq policy.
@@ -98,40 +86,20 @@ struct cpufreq_cooling_device {
unsigned int cpufreq_state;
unsigned int clipped_freq;
unsigned int max_level;
- struct freq_table *freq_table; /* In descending order */
+ struct em_perf_domain *em;
struct thermal_cooling_device *cdev;
struct cpufreq_policy *policy;
struct list_head node;
struct time_in_idle *idle_time;
+ struct cpu_cooling_ops *plat_ops;
};
-static DEFINE_IDA(cpufreq_ida);
static DEFINE_MUTEX(cooling_list_lock);
static LIST_HEAD(cpufreq_cdev_list);
/* Below code defines functions to be used for cpufreq as cooling device */
/**
- * get_level: Find the level for a particular frequency
- * @cpufreq_cdev: cpufreq_cdev for which the property is required
- * @freq: Frequency
- *
- * Return: level corresponding to the frequency.
- */
-static unsigned long get_level(struct cpufreq_cooling_device *cpufreq_cdev,
- unsigned int freq)
-{
- struct freq_table *freq_table = cpufreq_cdev->freq_table;
- unsigned long level;
-
- for (level = 1; level <= cpufreq_cdev->max_level; level++)
- if (freq > freq_table[level].frequency)
- break;
-
- return level - 1;
-}
-
-/**
* cpufreq_thermal_notifier - notifier callback for cpufreq policy change.
* @nb: struct notifier_block * with callback info.
* @event: value showing cpufreq event for which this function invoked.
@@ -184,105 +152,52 @@ static int cpufreq_thermal_notifier(struct notifier_block *nb,
return NOTIFY_OK;
}
+#ifdef CONFIG_ENERGY_MODEL
/**
- * update_freq_table() - Update the freq table with power numbers
- * @cpufreq_cdev: the cpufreq cooling device in which to update the table
- * @capacitance: dynamic power coefficient for these cpus
+ * get_level: Find the level for a particular frequency
+ * @cpufreq_cdev: cpufreq_cdev for which the property is required
+ * @freq: Frequency
*
- * Update the freq table with power numbers. This table will be used in
- * cpu_power_to_freq() and cpu_freq_to_power() to convert between power and
- * frequency efficiently. Power is stored in mW, frequency in KHz. The
- * resulting table is in descending order.
- *
- * Return: 0 on success, -EINVAL if there are no OPPs for any CPUs,
- * or -ENOMEM if we run out of memory.
+ * Return: level corresponding to the frequency.
*/
-static int update_freq_table(struct cpufreq_cooling_device *cpufreq_cdev,
- u32 capacitance)
+static unsigned long get_level(struct cpufreq_cooling_device *cpufreq_cdev,
+ unsigned int freq)
{
- struct freq_table *freq_table = cpufreq_cdev->freq_table;
- struct dev_pm_opp *opp;
- struct device *dev = NULL;
- int num_opps = 0, cpu = cpufreq_cdev->policy->cpu, i;
+ int i;
- dev = get_cpu_device(cpu);
- if (unlikely(!dev)) {
- dev_warn(&cpufreq_cdev->cdev->device,
- "No cpu device for cpu %d\n", cpu);
- return -ENODEV;
+ for (i = cpufreq_cdev->max_level - 1; i >= 0; i--) {
+ if (freq > cpufreq_cdev->em->table[i].frequency)
+ break;
}
- num_opps = dev_pm_opp_get_opp_count(dev);
- if (num_opps < 0)
- return num_opps;
-
- /*
- * The cpufreq table is also built from the OPP table and so the count
- * should match.
- */
- if (num_opps != cpufreq_cdev->max_level + 1) {
- dev_warn(dev, "Number of OPPs not matching with max_levels\n");
- return -EINVAL;
- }
-
- for (i = 0; i <= cpufreq_cdev->max_level; i++) {
- unsigned long freq = freq_table[i].frequency * 1000;
- u32 freq_mhz = freq_table[i].frequency / 1000;
- u64 power;
- u32 voltage_mv;
-
- /*
- * Find ceil frequency as 'freq' may be slightly lower than OPP
- * freq due to truncation while converting to kHz.
- */
- opp = dev_pm_opp_find_freq_ceil(dev, &freq);
- if (IS_ERR(opp)) {
- dev_err(dev, "failed to get opp for %lu frequency\n",
- freq);
- return -EINVAL;
- }
-
- voltage_mv = dev_pm_opp_get_voltage(opp) / 1000;
- dev_pm_opp_put(opp);
-
- /*
- * Do the multiplication with MHz and millivolt so as
- * to not overflow.
- */
- power = (u64)capacitance * freq_mhz * voltage_mv * voltage_mv;
- do_div(power, 1000000000);
-
- /* power is stored in mW */
- freq_table[i].power = power;
- }
-
- return 0;
+ return cpufreq_cdev->max_level - i - 1;
}
+
static u32 cpu_freq_to_power(struct cpufreq_cooling_device *cpufreq_cdev,
u32 freq)
{
int i;
- struct freq_table *freq_table = cpufreq_cdev->freq_table;
- for (i = 1; i <= cpufreq_cdev->max_level; i++)
- if (freq > freq_table[i].frequency)
+ for (i = cpufreq_cdev->max_level - 1; i >= 0; i--) {
+ if (freq > cpufreq_cdev->em->table[i].frequency)
break;
+ }
- return freq_table[i - 1].power;
+ return cpufreq_cdev->em->table[i + 1].power;
}
static u32 cpu_power_to_freq(struct cpufreq_cooling_device *cpufreq_cdev,
u32 power)
{
int i;
- struct freq_table *freq_table = cpufreq_cdev->freq_table;
- for (i = 0; i < cpufreq_cdev->max_level; i++)
- if (power >= freq_table[i].power)
+ for (i = cpufreq_cdev->max_level - 1; i >= 0; i--) {
+ if (power > cpufreq_cdev->em->table[i].power)
break;
+ }
- return freq_table[i].frequency;
+ return cpufreq_cdev->em->table[i + 1].frequency;
}
/**
@@ -332,6 +247,7 @@ static u32 get_dynamic_power(struct cpufreq_cooling_device *cpufreq_cdev,
raw_cpu_power = cpu_freq_to_power(cpufreq_cdev, freq);
return (raw_cpu_power * cpufreq_cdev->last_load) / 100;
}
+#endif
/* cpufreq cooling device callback functions are defined below */
@@ -374,6 +290,30 @@ static int cpufreq_get_cur_state(struct thermal_cooling_device *cdev,
return 0;
}
+static unsigned int get_state_freq(struct cpufreq_cooling_device *cpufreq_cdev,
+ unsigned long state)
+{
+ struct cpufreq_policy *policy;
+ unsigned long idx;
+
+#ifdef CONFIG_ENERGY_MODEL
+ /* Use the Energy Model table if available */
+ if (cpufreq_cdev->em) {
+ idx = cpufreq_cdev->max_level - state;
+ return cpufreq_cdev->em->table[idx].frequency;
+ }
+#endif
+
+ /* Otherwise, fallback on the CPUFreq table */
+ policy = cpufreq_cdev->policy;
+ if (policy->freq_table_sorted == CPUFREQ_TABLE_SORTED_ASCENDING)
+ idx = cpufreq_cdev->max_level - state;
+ else
+ idx = state;
+
+ return policy->freq_table[idx].frequency;
+}
+
/**
* cpufreq_set_cur_state - callback function to set the current cooling state.
* @cdev: thermal cooling device pointer.
@@ -398,15 +338,25 @@ static int cpufreq_set_cur_state(struct thermal_cooling_device *cdev,
if (cpufreq_cdev->cpufreq_state == state)
return 0;
- clip_freq = cpufreq_cdev->freq_table[state].frequency;
+ clip_freq = get_state_freq(cpufreq_cdev, state);
cpufreq_cdev->cpufreq_state = state;
cpufreq_cdev->clipped_freq = clip_freq;
- cpufreq_update_policy(cpufreq_cdev->policy->cpu);
+ /* Check if the device has a platform mitigation function that
+ * can handle the CPU freq mitigation, if not, notify cpufreq
+ * framework.
+ */
+ if (cpufreq_cdev->plat_ops &&
+ cpufreq_cdev->plat_ops->ceil_limit)
+ cpufreq_cdev->plat_ops->ceil_limit(cpufreq_cdev->policy->cpu,
+ clip_freq);
+ else
+ cpufreq_update_policy(cpufreq_cdev->policy->cpu);
return 0;
}
+#ifdef CONFIG_ENERGY_MODEL
/**
* cpufreq_get_requested_power() - get the current power
* @cdev: &thermal_cooling_device pointer
@@ -497,7 +447,7 @@ static int cpufreq_state2power(struct thermal_cooling_device *cdev,
struct thermal_zone_device *tz,
unsigned long state, u32 *power)
{
- unsigned int freq, num_cpus;
+ unsigned int freq, num_cpus, idx;
struct cpufreq_cooling_device *cpufreq_cdev = cdev->devdata;
/* Request state should be less than max_level */
@@ -506,7 +456,8 @@ static int cpufreq_state2power(struct thermal_cooling_device *cdev,
num_cpus = cpumask_weight(cpufreq_cdev->policy->cpus);
- freq = cpufreq_cdev->freq_table[state].frequency;
+ idx = cpufreq_cdev->max_level - state;
+ freq = cpufreq_cdev->em->table[idx].frequency;
*power = cpu_freq_to_power(cpufreq_cdev, freq) * num_cpus;
return 0;
@@ -553,14 +504,6 @@ static int cpufreq_power2state(struct thermal_cooling_device *cdev,
return 0;
}
-/* Bind cpufreq callbacks to thermal cooling device ops */
-
-static struct thermal_cooling_device_ops cpufreq_cooling_ops = {
- .get_max_state = cpufreq_get_max_state,
- .get_cur_state = cpufreq_get_cur_state,
- .set_cur_state = cpufreq_set_cur_state,
-};
-
static struct thermal_cooling_device_ops cpufreq_power_cooling_ops = {
.get_max_state = cpufreq_get_max_state,
.get_cur_state = cpufreq_get_cur_state,
@@ -569,32 +512,30 @@ static struct thermal_cooling_device_ops cpufreq_power_cooling_ops = {
.state2power = cpufreq_state2power,
.power2state = cpufreq_power2state,
};
+#endif
+
+/* Bind cpufreq callbacks to thermal cooling device ops */
+
+static struct thermal_cooling_device_ops cpufreq_cooling_ops = {
+ .get_max_state = cpufreq_get_max_state,
+ .get_cur_state = cpufreq_get_cur_state,
+ .set_cur_state = cpufreq_set_cur_state,
+};
/* Notifier for cpufreq policy change */
static struct notifier_block thermal_cpufreq_notifier_block = {
.notifier_call = cpufreq_thermal_notifier,
};
-static unsigned int find_next_max(struct cpufreq_frequency_table *table,
- unsigned int prev_max)
-{
- struct cpufreq_frequency_table *pos;
- unsigned int max = 0;
-
- cpufreq_for_each_valid_entry(pos, table) {
- if (pos->frequency > max && pos->frequency < prev_max)
- max = pos->frequency;
- }
-
- return max;
-}
-
/**
* __cpufreq_cooling_register - helper function to create cpufreq cooling device
* @np: a valid struct device_node to the cooling device device tree node
* @policy: cpufreq policy
* Normally this should be same as cpufreq policy->related_cpus.
- * @capacitance: dynamic power coefficient for these cpus
+ * @try_model: true if a power model should be used
+ * @plat_mitig_func: function that does the mitigation by changing the
+ * frequencies (Optional). By default, cpufreq framweork will
+ * be notified of the new limits.
*
* This interface function registers the cpufreq cooling device with the name
* "thermal-cpufreq-%x". This api can support multiple instances of cpufreq
@@ -606,13 +547,13 @@ static unsigned int find_next_max(struct cpufreq_frequency_table *table,
*/
static struct thermal_cooling_device *
__cpufreq_cooling_register(struct device_node *np,
- struct cpufreq_policy *policy, u32 capacitance)
+ struct cpufreq_policy *policy, bool try_model,
+ struct cpu_cooling_ops *plat_ops)
{
struct thermal_cooling_device *cdev;
struct cpufreq_cooling_device *cpufreq_cdev;
char dev_name[THERMAL_NAME_LENGTH];
- unsigned int freq, i, num_cpus;
- int ret;
+ unsigned int i, num_cpus;
struct thermal_cooling_device_ops *cooling_ops;
bool first;
@@ -645,54 +586,33 @@ __cpufreq_cooling_register(struct device_node *np,
/* max_level is an index, not a counter */
cpufreq_cdev->max_level = i - 1;
- cpufreq_cdev->freq_table = kmalloc_array(i,
- sizeof(*cpufreq_cdev->freq_table),
- GFP_KERNEL);
- if (!cpufreq_cdev->freq_table) {
- cdev = ERR_PTR(-ENOMEM);
- goto free_idle_time;
- }
+#ifdef CONFIG_ENERGY_MODEL
+ if (try_model) {
+ struct em_perf_domain *em = em_cpu_get(policy->cpu);
- ret = ida_simple_get(&cpufreq_ida, 0, 0, GFP_KERNEL);
- if (ret < 0) {
- cdev = ERR_PTR(ret);
- goto free_table;
- }
- cpufreq_cdev->id = ret;
+ if (!em || !cpumask_equal(policy->related_cpus,
+ to_cpumask(em->cpus))) {
+ cdev = ERR_PTR(-EINVAL);
+ goto free_idle_time;
+ }
+ cpufreq_cdev->em = em;
+ cooling_ops = &cpufreq_power_cooling_ops;
+ } else
+#endif
+ cooling_ops = &cpufreq_cooling_ops;
+
+ cpufreq_cdev->id = policy->cpu;
snprintf(dev_name, sizeof(dev_name), "thermal-cpufreq-%d",
cpufreq_cdev->id);
-
- /* Fill freq-table in descending order of frequencies */
- for (i = 0, freq = -1; i <= cpufreq_cdev->max_level; i++) {
- freq = find_next_max(policy->freq_table, freq);
- cpufreq_cdev->freq_table[i].frequency = freq;
-
- /* Warn for duplicate entries */
- if (!freq)
- pr_warn("%s: table has duplicate entries\n", __func__);
- else
- pr_debug("%s: freq:%u KHz\n", __func__, freq);
- }
-
- if (capacitance) {
- ret = update_freq_table(cpufreq_cdev, capacitance);
- if (ret) {
- cdev = ERR_PTR(ret);
- goto remove_ida;
- }
-
- cooling_ops = &cpufreq_power_cooling_ops;
- } else {
- cooling_ops = &cpufreq_cooling_ops;
- }
+ cpufreq_cdev->plat_ops = plat_ops;
cdev = thermal_of_cooling_device_register(np, dev_name, cpufreq_cdev,
cooling_ops);
if (IS_ERR(cdev))
- goto remove_ida;
+ goto free_idle_time;
- cpufreq_cdev->clipped_freq = cpufreq_cdev->freq_table[0].frequency;
+ cpufreq_cdev->clipped_freq = get_state_freq(cpufreq_cdev, 0);
cpufreq_cdev->cdev = cdev;
mutex_lock(&cooling_list_lock);
@@ -707,10 +627,6 @@ __cpufreq_cooling_register(struct device_node *np,
return cdev;
-remove_ida:
- ida_simple_remove(&cpufreq_ida, cpufreq_cdev->id);
-free_table:
- kfree(cpufreq_cdev->freq_table);
free_idle_time:
kfree(cpufreq_cdev->idle_time);
free_cdev:
@@ -732,7 +648,7 @@ __cpufreq_cooling_register(struct device_node *np,
struct thermal_cooling_device *
cpufreq_cooling_register(struct cpufreq_policy *policy)
{
- return __cpufreq_cooling_register(NULL, policy, 0);
+ return __cpufreq_cooling_register(NULL, policy, false, NULL);
}
EXPORT_SYMBOL_GPL(cpufreq_cooling_register);
@@ -760,7 +676,6 @@ of_cpufreq_cooling_register(struct cpufreq_policy *policy)
{
struct device_node *np = of_get_cpu_node(policy->cpu, NULL);
struct thermal_cooling_device *cdev = NULL;
- u32 capacitance = 0;
if (!np) {
pr_err("cpu_cooling: OF node not available for cpu%d\n",
@@ -769,10 +684,7 @@ of_cpufreq_cooling_register(struct cpufreq_policy *policy)
}
if (of_find_property(np, "#cooling-cells", NULL)) {
- of_property_read_u32(np, "dynamic-power-coefficient",
- &capacitance);
-
- cdev = __cpufreq_cooling_register(np, policy, capacitance);
+ cdev = __cpufreq_cooling_register(np, policy, true, NULL);
if (IS_ERR(cdev)) {
pr_err("cpu_cooling: cpu%d is not running as cooling device: %ld\n",
policy->cpu, PTR_ERR(cdev));
@@ -786,6 +698,37 @@ of_cpufreq_cooling_register(struct cpufreq_policy *policy)
EXPORT_SYMBOL_GPL(of_cpufreq_cooling_register);
/**
+ * cpufreq_platform_cooling_register() - create cpufreq cooling device with
+ * additional platform specific mitigation function.
+ *
+ * @clip_cpus: cpumask of cpus where the frequency constraints will happen
+ * @plat_ops: the platform mitigation functions that will be called insted of
+ * cpufreq, if provided.
+ *
+ * Return: a valid struct thermal_cooling_device pointer on success,
+ * on failure, it returns a corresponding ERR_PTR().
+ */
+struct thermal_cooling_device *
+cpufreq_platform_cooling_register(struct cpufreq_policy *policy,
+ struct cpu_cooling_ops *plat_ops)
+{
+ struct device_node *cpu_node;
+ struct thermal_cooling_device *cdev = NULL;
+
+ cpu_node = of_cpu_device_node_get(policy->cpu);
+ if (!cpu_node) {
+ pr_err("No cpu node\n");
+ return ERR_PTR(-EINVAL);
+ }
+ cdev = __cpufreq_cooling_register(cpu_node, policy, false,
+ plat_ops);
+
+ of_node_put(cpu_node);
+ return cdev;
+}
+EXPORT_SYMBOL(cpufreq_platform_cooling_register);
+
+/**
* cpufreq_cooling_unregister - function to remove cpufreq cooling device.
* @cdev: thermal cooling device pointer.
*
@@ -812,9 +755,7 @@ void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev)
CPUFREQ_POLICY_NOTIFIER);
thermal_cooling_device_unregister(cpufreq_cdev->cdev);
- ida_simple_remove(&cpufreq_ida, cpufreq_cdev->id);
kfree(cpufreq_cdev->idle_time);
- kfree(cpufreq_cdev->freq_table);
kfree(cpufreq_cdev);
}
EXPORT_SYMBOL_GPL(cpufreq_cooling_unregister);
diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
index 4f28165..dda85ee 100644
--- a/drivers/thermal/of-thermal.c
+++ b/drivers/thermal/of-thermal.c
@@ -13,6 +13,10 @@
#include <linux/err.h>
#include <linux/export.h>
#include <linux/string.h>
+#include <linux/list.h>
+
+#define CREATE_TRACE_POINTS
+#include <trace/events/thermal_virtual.h>
#include "thermal_core.h"
@@ -36,18 +40,38 @@ struct __thermal_bind_params {
};
/**
+ * struct __sensor_param - Holds individual sensor data
+ * @sensor_data: sensor driver private data passed as input argument
+ * @ops: sensor driver ops
+ * @trip_high: last trip high value programmed in the sensor driver
+ * @trip_low: last trip low value programmed in the sensor driver
+ * @lock: mutex lock acquired before updating the trip temperatures
+ * @first_tz: list head pointing the first thermal zone
+ */
+struct __sensor_param {
+ void *sensor_data;
+ const struct thermal_zone_of_device_ops *ops;
+ int trip_high, trip_low;
+ struct mutex lock;
+ struct list_head first_tz;
+};
+
+/**
* struct __thermal_zone - internal representation of a thermal zone
* @mode: current thermal zone device mode (enabled/disabled)
* @passive_delay: polling interval while passive cooling is activated
* @polling_delay: zone polling interval
* @slope: slope of the temperature adjustment curve
* @offset: offset of the temperature adjustment curve
+ * @default_disable: Keep the thermal zone disabled by default
+ * @is_wakeable: Ignore post suspend thermal zone re-evaluation
+ * @tzd: thermal zone device pointer for this sensor
* @ntrips: number of trip points
* @trips: an array of trip points (0..ntrips - 1)
* @num_tbps: number of thermal bind params
* @tbps: an array of thermal bind params (0..num_tbps - 1)
- * @sensor_data: sensor private data used while reading temperature and trend
- * @ops: set of callbacks to handle the thermal zone based on DT
+ * @senps: sensor related parameters
+ * @list: sibling thermal zone
*/
struct __thermal_zone {
@@ -56,6 +80,9 @@ struct __thermal_zone {
int polling_delay;
int slope;
int offset;
+ struct thermal_zone_device *tzd;
+ bool default_disable;
+ bool is_wakeable;
/* trip data */
int ntrips;
@@ -65,22 +92,101 @@ struct __thermal_zone {
int num_tbps;
struct __thermal_bind_params *tbps;
+ struct list_head list;
/* sensor interface */
- void *sensor_data;
- const struct thermal_zone_of_device_ops *ops;
+ struct __sensor_param *senps;
};
+/**
+ * struct virtual_sensor - internal representation of a virtual thermal zone
+ * @num_sensors - number of sensors this virtual sensor will reference to
+ * estimate temperature
+ * @tz - Array of thermal zones of the sensors this virtual sensor will use
+ * to estimate temperature
+ * @virt_tz - Virtual thermal zone pointer
+ * @logic - aggregation logic to be used to estimate the temperature
+ * @last_reading - last estimated temperature
+ * @coefficients - array of coefficients to be used for weighted aggregation
+ * logic
+ * @avg_offset - offset value to be used for the weighted aggregation logic
+ * @avg_denominator - denominator value to be used for the weighted aggregation
+ * logic
+ */
+struct virtual_sensor {
+ int num_sensors;
+ struct thermal_zone_device *tz[THERMAL_MAX_VIRT_SENSORS];
+ struct thermal_zone_device *virt_tz;
+ enum aggregation_logic logic;
+ int last_reading;
+ int coefficients[THERMAL_MAX_VIRT_SENSORS];
+ int avg_offset;
+ int avg_denominator;
+};
+
+
/*** DT thermal zone device callbacks ***/
+static int virt_sensor_read_temp(void *data, int *val)
+{
+ struct virtual_sensor *sens = data;
+ int idx, temp = 0, ret = 0;
+
+ for (idx = 0; idx < sens->num_sensors; idx++) {
+ int sens_temp = 0;
+
+ ret = thermal_zone_get_temp(sens->tz[idx], &sens_temp);
+ if (ret) {
+ pr_err("virt zone: sensor[%s] read error:%d\n",
+ sens->tz[idx]->type, ret);
+ return ret;
+ }
+ switch (sens->logic) {
+ case VIRT_COUNT_THRESHOLD:
+ if ((sens->coefficients[idx] < 0 &&
+ sens_temp < -sens->coefficients[idx]) ||
+ (sens->coefficients[idx] > 0 &&
+ sens_temp >= sens->coefficients[idx]))
+ temp += 1;
+ break;
+ case VIRT_WEIGHTED_AVG:
+ temp += sens_temp * sens->coefficients[idx];
+ if (idx == (sens->num_sensors - 1))
+ temp = (temp + sens->avg_offset)
+ / sens->avg_denominator;
+ break;
+ case VIRT_MAXIMUM:
+ if (idx == 0)
+ temp = INT_MIN;
+ if (sens_temp > temp)
+ temp = sens_temp;
+ break;
+ case VIRT_MINIMUM:
+ if (idx == 0)
+ temp = INT_MAX;
+ if (sens_temp < temp)
+ temp = sens_temp;
+ break;
+ default:
+ break;
+ }
+ trace_virtual_temperature(sens->virt_tz, sens->tz[idx],
+ sens_temp, temp);
+ }
+
+ sens->last_reading = *val = temp;
+
+ return 0;
+}
+
static int of_thermal_get_temp(struct thermal_zone_device *tz,
int *temp)
{
struct __thermal_zone *data = tz->devdata;
- if (!data->ops->get_temp)
+ if (!data->senps || !data->senps->ops->get_temp)
return -EINVAL;
- return data->ops->get_temp(data->sensor_data, temp);
+ return data->senps->ops->get_temp(data->senps->sensor_data, temp);
}
static int of_thermal_set_trips(struct thermal_zone_device *tz,
@@ -88,10 +194,10 @@ static int of_thermal_set_trips(struct thermal_zone_device *tz,
{
struct __thermal_zone *data = tz->devdata;
- if (!data->ops || !data->ops->set_trips)
+ if (!data->senps || !data->senps->ops->set_trips)
return -EINVAL;
- return data->ops->set_trips(data->sensor_data, low, high);
+ return data->senps->ops->set_trips(data->senps->sensor_data, low, high);
}
/**
@@ -174,7 +280,10 @@ static int of_thermal_set_emul_temp(struct thermal_zone_device *tz,
{
struct __thermal_zone *data = tz->devdata;
- return data->ops->set_emul_temp(data->sensor_data, temp);
+ if (!data->senps || !data->senps->ops->set_emul_temp)
+ return -EINVAL;
+
+ return data->senps->ops->set_emul_temp(data->senps->sensor_data, temp);
}
static int of_thermal_get_trend(struct thermal_zone_device *tz, int trip,
@@ -182,10 +291,11 @@ static int of_thermal_get_trend(struct thermal_zone_device *tz, int trip,
{
struct __thermal_zone *data = tz->devdata;
- if (!data->ops->get_trend)
+ if (!data->senps || !data->senps->ops->get_trend)
return -EINVAL;
- return data->ops->get_trend(data->sensor_data, trip, trend);
+ return data->senps->ops->get_trend(data->senps->sensor_data,
+ trip, trend);
}
static int of_thermal_bind(struct thermal_zone_device *thermal,
@@ -297,11 +407,63 @@ static int of_thermal_get_trip_temp(struct thermal_zone_device *tz, int trip,
if (trip >= data->ntrips || trip < 0)
return -EDOM;
- *temp = data->trips[trip].temperature;
+ if (data->senps && data->senps->ops &&
+ data->senps->ops->get_trip_temp) {
+ int ret;
+
+ ret = data->senps->ops->get_trip_temp(data->senps->sensor_data,
+ trip, temp);
+ if (ret)
+ return ret;
+ } else {
+ *temp = data->trips[trip].temperature;
+ }
return 0;
}
+static bool of_thermal_is_trips_triggered(struct thermal_zone_device *tz,
+ int temp)
+{
+ int tt, th, trip, last_temp;
+ struct __thermal_zone *data = tz->devdata;
+ bool triggered = false;
+
+ if (!tz->tzp)
+ return triggered;
+
+ mutex_lock(&tz->lock);
+ last_temp = tz->temperature;
+ for (trip = 0; trip < data->ntrips; trip++) {
+ if (!tz->tzp->tracks_low) {
+ tt = data->trips[trip].temperature;
+ if (temp >= tt && last_temp < tt) {
+ triggered = true;
+ break;
+ }
+ th = tt - data->trips[trip].hysteresis;
+ if (temp <= th && last_temp > th) {
+ triggered = true;
+ break;
+ }
+ } else {
+ tt = data->trips[trip].temperature;
+ if (temp <= tt && last_temp > tt) {
+ triggered = true;
+ break;
+ }
+ th = tt + data->trips[trip].hysteresis;
+ if (temp >= th && last_temp < th) {
+ triggered = true;
+ break;
+ }
+ }
+ }
+ mutex_unlock(&tz->lock);
+
+ return triggered;
+}
+
static int of_thermal_set_trip_temp(struct thermal_zone_device *tz, int trip,
int temp)
{
@@ -310,10 +472,11 @@ static int of_thermal_set_trip_temp(struct thermal_zone_device *tz, int trip,
if (trip >= data->ntrips || trip < 0)
return -EDOM;
- if (data->ops->set_trip_temp) {
+ if (data->senps && data->senps->ops->set_trip_temp) {
int ret;
- ret = data->ops->set_trip_temp(data->sensor_data, trip, temp);
+ ret = data->senps->ops->set_trip_temp(data->senps->sensor_data,
+ trip, temp);
if (ret)
return ret;
}
@@ -366,6 +529,70 @@ static int of_thermal_get_crit_temp(struct thermal_zone_device *tz,
return -EINVAL;
}
+static bool of_thermal_is_wakeable(struct thermal_zone_device *tz)
+{
+ struct __thermal_zone *data = tz->devdata;
+
+ return data->is_wakeable;
+}
+
+static void handle_thermal_trip(struct thermal_zone_device *tz,
+ bool temp_valid, int trip_temp)
+{
+ struct thermal_zone_device *zone;
+ struct __thermal_zone *data;
+ struct list_head *head;
+
+ if (!tz || !tz->devdata)
+ return;
+
+ data = tz->devdata;
+
+ if (!data->senps)
+ return;
+
+ head = &data->senps->first_tz;
+
+ list_for_each_entry(data, head, list) {
+ zone = data->tzd;
+ if (data->mode == THERMAL_DEVICE_DISABLED)
+ continue;
+ if (!temp_valid) {
+ thermal_zone_device_update(zone,
+ THERMAL_EVENT_UNSPECIFIED);
+ } else {
+ if (!of_thermal_is_trips_triggered(zone, trip_temp))
+ continue;
+ thermal_zone_device_update_temp(zone,
+ THERMAL_EVENT_UNSPECIFIED, trip_temp);
+ }
+ }
+}
+
+/*
+ * of_thermal_handle_trip_temp - Handle thermal trip from sensors
+ *
+ * @tz: pointer to the primary thermal zone.
+ * @trip_temp: The temperature
+ */
+void of_thermal_handle_trip_temp(struct thermal_zone_device *tz,
+ int trip_temp)
+{
+ return handle_thermal_trip(tz, true, trip_temp);
+}
+EXPORT_SYMBOL_GPL(of_thermal_handle_trip_temp);
+
+/*
+ * of_thermal_handle_trip - Handle thermal trip from sensors
+ *
+ * @tz: pointer to the primary thermal zone.
+ */
+void of_thermal_handle_trip(struct thermal_zone_device *tz)
+{
+ return handle_thermal_trip(tz, false, 0);
+}
+EXPORT_SYMBOL_GPL(of_thermal_handle_trip);
+
static struct thermal_zone_device_ops of_thermal_ops = {
.get_mode = of_thermal_get_mode,
.set_mode = of_thermal_set_mode,
@@ -379,14 +606,20 @@ static struct thermal_zone_device_ops of_thermal_ops = {
.bind = of_thermal_bind,
.unbind = of_thermal_unbind,
+
+ .is_wakeable = of_thermal_is_wakeable,
+};
+
+static struct thermal_zone_of_device_ops of_virt_ops = {
+ .get_temp = virt_sensor_read_temp,
};
/*** sensor API ***/
static struct thermal_zone_device *
thermal_zone_of_add_sensor(struct device_node *zone,
- struct device_node *sensor, void *data,
- const struct thermal_zone_of_device_ops *ops)
+ struct device_node *sensor,
+ struct __sensor_param *sens_param)
{
struct thermal_zone_device *tzd;
struct __thermal_zone *tz;
@@ -397,12 +630,11 @@ thermal_zone_of_add_sensor(struct device_node *zone,
tz = tzd->devdata;
- if (!ops)
+ if (!sens_param->ops)
return ERR_PTR(-EINVAL);
mutex_lock(&tzd->lock);
- tz->ops = ops;
- tz->sensor_data = data;
+ tz->senps = sens_param;
tzd->ops->get_temp = of_thermal_get_temp;
tzd->ops->get_trend = of_thermal_get_trend;
@@ -411,12 +643,13 @@ thermal_zone_of_add_sensor(struct device_node *zone,
* The thermal zone core will calculate the window if they have set the
* optional set_trips pointer.
*/
- if (ops->set_trips)
+ if (sens_param->ops->set_trips)
tzd->ops->set_trips = of_thermal_set_trips;
- if (ops->set_emul_temp)
+ if (sens_param->ops->set_emul_temp)
tzd->ops->set_emul_temp = of_thermal_set_emul_temp;
+ list_add_tail(&tz->list, &sens_param->first_tz);
mutex_unlock(&tzd->lock);
return tzd;
@@ -451,7 +684,9 @@ thermal_zone_of_add_sensor(struct device_node *zone,
* that refer to it.
*
* Return: On success returns a valid struct thermal_zone_device,
- * otherwise, it returns a corresponding ERR_PTR(). Caller must
+ * otherwise, it returns a corresponding ERR_PTR(). Incase there are multiple
+ * thermal zones referencing the same sensor, the return value will be
+ * thermal_zone_device pointer of the first thermal zone. Caller must
* check the return value with help of IS_ERR() helper.
*/
struct thermal_zone_device *
@@ -460,6 +695,8 @@ thermal_zone_of_sensor_register(struct device *dev, int sensor_id, void *data,
{
struct device_node *np, *child, *sensor_np;
struct thermal_zone_device *tzd = ERR_PTR(-ENODEV);
+ struct thermal_zone_device *first_tzd = NULL;
+ struct __sensor_param *sens_param = NULL;
np = of_find_node_by_name(NULL, "thermal-zones");
if (!np)
@@ -470,11 +707,23 @@ thermal_zone_of_sensor_register(struct device *dev, int sensor_id, void *data,
return ERR_PTR(-EINVAL);
}
+ sens_param = kzalloc(sizeof(*sens_param), GFP_KERNEL);
+ if (!sens_param) {
+ of_node_put(np);
+ return ERR_PTR(-ENOMEM);
+ }
+ sens_param->sensor_data = data;
+ sens_param->ops = ops;
+ INIT_LIST_HEAD(&sens_param->first_tz);
+ sens_param->trip_high = INT_MAX;
+ sens_param->trip_low = INT_MIN;
+ mutex_init(&sens_param->lock);
sensor_np = of_node_get(dev->of_node);
for_each_available_child_of_node(np, child) {
struct of_phandle_args sensor_specs;
int ret, id;
+ struct __thermal_zone *tz;
/* For now, thermal framework supports only 1 sensor per zone */
ret = of_parse_phandle_with_args(child, "thermal-sensors",
@@ -494,21 +743,26 @@ thermal_zone_of_sensor_register(struct device *dev, int sensor_id, void *data,
if (sensor_specs.np == sensor_np && id == sensor_id) {
tzd = thermal_zone_of_add_sensor(child, sensor_np,
- data, ops);
- if (!IS_ERR(tzd))
- tzd->ops->set_mode(tzd, THERMAL_DEVICE_ENABLED);
-
- of_node_put(sensor_specs.np);
- of_node_put(child);
- goto exit;
+ sens_param);
+ if (!IS_ERR(tzd)) {
+ if (!first_tzd)
+ first_tzd = tzd;
+ tz = tzd->devdata;
+ if (!tz->default_disable)
+ tzd->ops->set_mode(tzd,
+ THERMAL_DEVICE_ENABLED);
+ }
}
of_node_put(sensor_specs.np);
}
-exit:
of_node_put(sensor_np);
of_node_put(np);
- return tzd;
+ if (!first_tzd) {
+ first_tzd = ERR_PTR(-ENODEV);
+ kfree(sens_param);
+ }
+ return first_tzd;
}
EXPORT_SYMBOL_GPL(thermal_zone_of_sensor_register);
@@ -530,7 +784,9 @@ EXPORT_SYMBOL_GPL(thermal_zone_of_sensor_register);
void thermal_zone_of_sensor_unregister(struct device *dev,
struct thermal_zone_device *tzd)
{
- struct __thermal_zone *tz;
+ struct __thermal_zone *tz, *next;
+ struct thermal_zone_device *pos;
+ struct list_head *head;
if (!dev || !tzd || !tzd->devdata)
return;
@@ -541,14 +797,20 @@ void thermal_zone_of_sensor_unregister(struct device *dev,
if (!tz)
return;
- mutex_lock(&tzd->lock);
- tzd->ops->get_temp = NULL;
- tzd->ops->get_trend = NULL;
- tzd->ops->set_emul_temp = NULL;
+ head = &tz->senps->first_tz;
+ list_for_each_entry_safe(tz, next, head, list) {
+ pos = tz->tzd;
+ mutex_lock(&pos->lock);
+ pos->ops->get_temp = NULL;
+ pos->ops->get_trend = NULL;
+ pos->ops->set_emul_temp = NULL;
- tz->ops = NULL;
- tz->sensor_data = NULL;
- mutex_unlock(&tzd->lock);
+ list_del(&tz->list);
+ if (list_empty(&tz->senps->first_tz))
+ kfree(tz->senps);
+ tz->senps = NULL;
+ mutex_unlock(&pos->lock);
+ }
}
EXPORT_SYMBOL_GPL(thermal_zone_of_sensor_unregister);
@@ -633,6 +895,138 @@ void devm_thermal_zone_of_sensor_unregister(struct device *dev,
}
EXPORT_SYMBOL_GPL(devm_thermal_zone_of_sensor_unregister);
+/**
+ * devm_thermal_of_virtual_sensor_register - Register a virtual sensor.
+ * Three types of virtual sensors are supported.
+ * 1. Weighted aggregation type:
+ * Virtual sensor of this type calculates the weighted aggregation
+ * of sensor temperatures using the below formula,
+ * temp = (sensor_1_temp * coeff_1 + ... + sensor_n_temp * coeff_n)
+ * + avg_offset / avg_denominator
+ * So the sensor drivers has to specify n+2 coefficients.
+ * 2. Maximum type:
+ * Virtual sensors of this type will report the maximum of all
+ * sensor temperatures.
+ * 3. Minimum type:
+ * Virtual sensors of this type will report the minimum of all
+ * sensor temperatures.
+ *
+ * @input arguments:
+ * @dev: Virtual sensor driver device pointer.
+ * @sensor_data: Virtual sensor data supported for the device.
+ *
+ * @return: Returns a virtual thermal zone pointer. Returns error if thermal
+ * zone is not created. Returns -EAGAIN, if the sensor that is required for
+ * this virtual sensor temperature estimation is not registered yet. The
+ * sensor driver can try again later.
+ */
+struct thermal_zone_device *devm_thermal_of_virtual_sensor_register(
+ struct device *dev,
+ const struct virtual_sensor_data *sensor_data)
+{
+ int sens_idx = 0;
+ struct virtual_sensor *sens;
+ struct __thermal_zone *tz;
+ struct thermal_zone_device **ptr;
+ struct thermal_zone_device *tzd;
+ struct __sensor_param *sens_param = NULL;
+ enum thermal_device_mode mode;
+
+ if (!dev || !sensor_data)
+ return ERR_PTR(-EINVAL);
+
+ tzd = thermal_zone_get_zone_by_name(
+ sensor_data->virt_zone_name);
+ if (IS_ERR(tzd)) {
+ dev_dbg(dev, "sens:%s not available err: %ld\n",
+ sensor_data->virt_zone_name,
+ PTR_ERR(tzd));
+ return tzd;
+ }
+
+ mutex_lock(&tzd->lock);
+ /*
+ * Check if the virtual zone is registered and enabled.
+ * If so return the registered thermal zone.
+ */
+ tzd->ops->get_mode(tzd, &mode);
+ mutex_unlock(&tzd->lock);
+ if (mode == THERMAL_DEVICE_ENABLED)
+ return tzd;
+
+ sens = devm_kzalloc(dev, sizeof(*sens), GFP_KERNEL);
+ if (!sens)
+ return ERR_PTR(-ENOMEM);
+
+ sens->virt_tz = tzd;
+ sens->logic = sensor_data->logic;
+ sens->num_sensors = sensor_data->num_sensors;
+ if ((sens->logic == VIRT_WEIGHTED_AVG) ||
+ (sens->logic == VIRT_COUNT_THRESHOLD)) {
+ int coeff_ct = sensor_data->coefficient_ct;
+
+ /*
+ * For weighted aggregation, sensor drivers has to specify
+ * n+2 coefficients.
+ */
+ if (coeff_ct != sens->num_sensors) {
+ dev_err(dev, "sens:%s invalid coefficient\n",
+ sensor_data->virt_zone_name);
+ return ERR_PTR(-EINVAL);
+ }
+ memcpy(sens->coefficients, sensor_data->coefficients,
+ coeff_ct * sizeof(*sens->coefficients));
+ sens->avg_offset = sensor_data->avg_offset;
+ sens->avg_denominator = sensor_data->avg_denominator;
+ }
+
+ for (sens_idx = 0; sens_idx < sens->num_sensors; sens_idx++) {
+ sens->tz[sens_idx] = thermal_zone_get_zone_by_name(
+ sensor_data->sensor_names[sens_idx]);
+ if (IS_ERR(sens->tz[sens_idx])) {
+ dev_err(dev, "sens:%s sensor[%s] fetch err:%ld\n",
+ sensor_data->virt_zone_name,
+ sensor_data->sensor_names[sens_idx],
+ PTR_ERR(sens->tz[sens_idx]));
+ break;
+ }
+ }
+ if (sens->num_sensors != sens_idx)
+ return ERR_PTR(-EAGAIN);
+
+ sens_param = kzalloc(sizeof(*sens_param), GFP_KERNEL);
+ if (!sens_param)
+ return ERR_PTR(-ENOMEM);
+ sens_param->sensor_data = sens;
+ sens_param->ops = &of_virt_ops;
+ INIT_LIST_HEAD(&sens_param->first_tz);
+ sens_param->trip_high = INT_MAX;
+ sens_param->trip_low = INT_MIN;
+ mutex_init(&sens_param->lock);
+
+ mutex_lock(&tzd->lock);
+ tz = tzd->devdata;
+ tz->senps = sens_param;
+ tzd->ops->get_temp = of_thermal_get_temp;
+ list_add_tail(&tz->list, &sens_param->first_tz);
+ mutex_unlock(&tzd->lock);
+
+ ptr = devres_alloc(devm_thermal_zone_of_sensor_release, sizeof(*ptr),
+ GFP_KERNEL);
+ if (!ptr)
+ return ERR_PTR(-ENOMEM);
+
+ *ptr = tzd;
+ devres_add(dev, ptr);
+
+ if (!tz->default_disable)
+ tzd->ops->set_mode(tzd, THERMAL_DEVICE_ENABLED);
+
+ return tzd;
+}
+EXPORT_SYMBOL(devm_thermal_of_virtual_sensor_register);
+
+
/*** functions parsing device tree nodes ***/
/**
@@ -817,6 +1211,7 @@ __init *thermal_of_build_thermal_zone(struct device_node *np)
if (!tz)
return ERR_PTR(-ENOMEM);
+ INIT_LIST_HEAD(&tz->list);
ret = of_property_read_u32(np, "polling-delay-passive", &prop);
if (ret < 0) {
pr_err("missing polling-delay-passive property\n");
@@ -831,6 +1226,10 @@ __init *thermal_of_build_thermal_zone(struct device_node *np)
}
tz->polling_delay = prop;
+ tz->is_wakeable = of_property_read_bool(np,
+ "wake-capable-sensor");
+ tz->default_disable = of_property_read_bool(np,
+ "disable-thermal-zone");
/*
* REVIST: for now, the thermal framework supports only
* one sensor per thermal zone. Thus, we are considering
@@ -992,6 +1391,9 @@ int __init of_parse_thermal_zones(void)
tzp->slope = tz->slope;
tzp->offset = tz->offset;
+ if (of_property_read_bool(child, "tracks-low"))
+ tzp->tracks_low = true;
+
zone = thermal_zone_device_register(child->name, tz->ntrips,
mask, tz,
ops, tzp,
@@ -1004,7 +1406,9 @@ int __init of_parse_thermal_zones(void)
kfree(ops);
of_thermal_free_zone(tz);
/* attempting to build remaining zones still */
+ continue;
}
+ tz->tzd = zone;
}
of_node_put(np);
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index a24296d..07efe3e 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -424,6 +424,23 @@ static void handle_thermal_trip(struct thermal_zone_device *tz, int trip)
monitor_thermal_zone(tz);
}
+static void store_temperature(struct thermal_zone_device *tz, int temp)
+{
+ mutex_lock(&tz->lock);
+ tz->last_temperature = tz->temperature;
+ tz->temperature = temp;
+ mutex_unlock(&tz->lock);
+
+ trace_thermal_temperature(tz);
+ if (tz->last_temperature == THERMAL_TEMP_INVALID ||
+ tz->last_temperature == THERMAL_TEMP_INVALID_LOW)
+ dev_dbg(&tz->device, "last_temperature N/A, current_temperature=%d\n",
+ tz->temperature);
+ else
+ dev_dbg(&tz->device, "last_temperature=%d, current_temperature=%d\n",
+ tz->last_temperature, tz->temperature);
+}
+
static void update_temperature(struct thermal_zone_device *tz)
{
int temp, ret;
@@ -436,19 +453,7 @@ static void update_temperature(struct thermal_zone_device *tz)
ret);
return;
}
-
- mutex_lock(&tz->lock);
- tz->last_temperature = tz->temperature;
- tz->temperature = temp;
- mutex_unlock(&tz->lock);
-
- trace_thermal_temperature(tz);
- if (tz->last_temperature == THERMAL_TEMP_INVALID)
- dev_dbg(&tz->device, "last_temperature N/A, current_temperature=%d\n",
- tz->temperature);
- else
- dev_dbg(&tz->device, "last_temperature=%d, current_temperature=%d\n",
- tz->last_temperature, tz->temperature);
+ store_temperature(tz, temp);
}
static void thermal_zone_device_init(struct thermal_zone_device *tz)
@@ -465,12 +470,38 @@ static void thermal_zone_device_reset(struct thermal_zone_device *tz)
thermal_zone_device_init(tz);
}
+void thermal_zone_device_update_temp(struct thermal_zone_device *tz,
+ enum thermal_notify_event event, int temp)
+{
+ int count;
+
+ if (!tz || !tz->ops)
+ return;
+
+ if (atomic_read(&in_suspend) && (!tz->ops->is_wakeable ||
+ !(tz->ops->is_wakeable(tz))))
+ return;
+
+ store_temperature(tz, temp);
+
+ thermal_zone_set_trips(tz);
+
+ tz->notify_event = event;
+
+ for (count = 0; count < tz->trips; count++)
+ handle_thermal_trip(tz, count);
+}
+
void thermal_zone_device_update(struct thermal_zone_device *tz,
enum thermal_notify_event event)
{
int count;
- if (atomic_read(&in_suspend))
+ if (!tz || !tz->ops)
+ return;
+
+ if (atomic_read(&in_suspend) && (!tz->ops->is_wakeable ||
+ !(tz->ops->is_wakeable(tz))))
return;
if (!tz->ops->get_temp)
@@ -736,8 +767,9 @@ int thermal_zone_bind_cooling_device(struct thermal_zone_device *tz,
sprintf(dev->attr_name, "cdev%d_trip_point", dev->id);
sysfs_attr_init(&dev->attr.attr);
dev->attr.attr.name = dev->attr_name;
- dev->attr.attr.mode = 0444;
+ dev->attr.attr.mode = 0644;
dev->attr.show = trip_point_show;
+ dev->attr.store = trip_point_store;
result = device_create_file(&tz->device, &dev->attr);
if (result)
goto remove_symbol_link;
@@ -941,7 +973,7 @@ static void bind_cdev(struct thermal_cooling_device *cdev)
*/
static struct thermal_cooling_device *
__thermal_cooling_device_register(struct device_node *np,
- char *type, void *devdata,
+ const char *type, void *devdata,
const struct thermal_cooling_device_ops *ops)
{
struct thermal_cooling_device *cdev;
@@ -1015,7 +1047,7 @@ __thermal_cooling_device_register(struct device_node *np,
* ERR_PTR. Caller must check return value with IS_ERR*() helpers.
*/
struct thermal_cooling_device *
-thermal_cooling_device_register(char *type, void *devdata,
+thermal_cooling_device_register(const char *type, void *devdata,
const struct thermal_cooling_device_ops *ops)
{
return __thermal_cooling_device_register(NULL, type, devdata, ops);
@@ -1039,7 +1071,7 @@ EXPORT_SYMBOL_GPL(thermal_cooling_device_register);
*/
struct thermal_cooling_device *
thermal_of_cooling_device_register(struct device_node *np,
- char *type, void *devdata,
+ const char *type, void *devdata,
const struct thermal_cooling_device_ops *ops)
{
return __thermal_cooling_device_register(np, type, devdata, ops);
@@ -1399,6 +1431,43 @@ struct thermal_zone_device *thermal_zone_get_zone_by_name(const char *name)
}
EXPORT_SYMBOL_GPL(thermal_zone_get_zone_by_name);
+/**
+ * thermal_zone_get_cdev_by_name() - search for a cooling device and returns
+ * its ref.
+ * @name: thermal cdev name to fetch the temperature
+ *
+ * When only one cdev is found with the passed name, returns a reference to it.
+ *
+ * Return: On success returns a reference to an unique thermal cooling device
+ * with matching name equals to @name, an ERR_PTR otherwise (-EINVAL for
+ * invalid paramenters, -ENODEV for not found and -EEXIST for multiple matches).
+ */
+struct thermal_cooling_device *thermal_zone_get_cdev_by_name(const char *name)
+{
+ struct thermal_cooling_device *pos = NULL, *ref = ERR_PTR(-EINVAL);
+ unsigned int found = 0;
+
+ if (!name)
+ return ref;
+
+ mutex_lock(&thermal_list_lock);
+ list_for_each_entry(pos, &thermal_cdev_list, node)
+ if (!strncasecmp(name, pos->type, THERMAL_NAME_LENGTH)) {
+ found++;
+ ref = pos;
+ }
+ mutex_unlock(&thermal_list_lock);
+
+ /* nothing has been found, thus an error code for it */
+ if (found == 0)
+ return ERR_PTR(-ENODEV);
+ if (found > 1)
+ return ERR_PTR(-EEXIST);
+ return ref;
+
+}
+EXPORT_SYMBOL_GPL(thermal_zone_get_cdev_by_name);
+
#ifdef CONFIG_NET
static const struct genl_multicast_group thermal_event_mcgrps[] = {
{ .name = THERMAL_GENL_MCAST_GROUP_NAME, },
@@ -1506,6 +1575,9 @@ static int thermal_pm_notify(struct notifier_block *nb,
case PM_POST_SUSPEND:
atomic_set(&in_suspend, 0);
list_for_each_entry(tz, &thermal_tz_list, node) {
+ if (tz->ops && tz->ops->is_wakeable &&
+ tz->ops->is_wakeable(tz))
+ continue;
thermal_zone_device_init(tz);
thermal_zone_device_update(tz,
THERMAL_EVENT_UNSPECIFIED);
diff --git a/drivers/thermal/thermal_core.h b/drivers/thermal/thermal_core.h
index 0df190ed..ee35e08 100644
--- a/drivers/thermal/thermal_core.h
+++ b/drivers/thermal/thermal_core.h
@@ -61,6 +61,8 @@ void thermal_cooling_device_setup_sysfs(struct thermal_cooling_device *);
void thermal_cooling_device_destroy_sysfs(struct thermal_cooling_device *cdev);
/* used only at binding time */
ssize_t trip_point_show(struct device *, struct device_attribute *, char *);
+ssize_t trip_point_store(struct device *, struct device_attribute *,
+ const char *, size_t);
ssize_t weight_show(struct device *, struct device_attribute *, char *);
ssize_t weight_store(struct device *, struct device_attribute *, const char *,
size_t);
@@ -122,6 +124,9 @@ int of_thermal_get_ntrips(struct thermal_zone_device *);
bool of_thermal_is_trip_valid(struct thermal_zone_device *, int);
const struct thermal_trip *
of_thermal_get_trip_points(struct thermal_zone_device *);
+void of_thermal_handle_trip(struct thermal_zone_device *tz);
+void of_thermal_handle_trip_temp(struct thermal_zone_device *tz,
+ int trip_temp);
#else
static inline int of_parse_thermal_zones(void) { return 0; }
static inline void of_thermal_destroy_zones(void) { }
@@ -139,6 +144,13 @@ of_thermal_get_trip_points(struct thermal_zone_device *tz)
{
return NULL;
}
+static inline
+void of_thermal_handle_trip(struct thermal_zone_device *tz)
+{ }
+static inline
+void of_thermal_handle_trip_temp(struct thermal_zone_device *tz,
+ int trip_temp)
+{ }
#endif
#endif /* __THERMAL_CORE_H__ */
diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c
index 4dce4a8..384444f 100644
--- a/drivers/thermal/thermal_sysfs.c
+++ b/drivers/thermal/thermal_sysfs.c
@@ -980,6 +980,26 @@ trip_point_show(struct device *dev, struct device_attribute *attr, char *buf)
return sprintf(buf, "%d\n", instance->trip);
}
+ssize_t trip_point_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct thermal_instance *instance;
+ int ret, trip;
+
+ ret = kstrtoint(buf, 0, &trip);
+ if (ret)
+ return ret;
+
+ instance = container_of(attr, struct thermal_instance, attr);
+
+ if (trip >= instance->tz->trips || trip < THERMAL_TRIPS_NONE)
+ return -EINVAL;
+
+ instance->trip = trip;
+
+ return count;
+}
+
ssize_t
weight_show(struct device *dev, struct device_attribute *attr, char *buf)
{
diff --git a/drivers/tty/serdev/core.c b/drivers/tty/serdev/core.c
index c66a04d..191f91c 100644
--- a/drivers/tty/serdev/core.c
+++ b/drivers/tty/serdev/core.c
@@ -30,7 +30,18 @@ static ssize_t modalias_show(struct device *dev,
if (len != -ENODEV)
return len;
- return of_device_modalias(dev, buf, PAGE_SIZE);
+ len = of_device_modalias(dev, buf, PAGE_SIZE);
+ if (len != -ENODEV)
+ return len;
+
+ if (dev->parent->parent->bus == &platform_bus_type) {
+ struct platform_device *pdev =
+ to_platform_device(dev->parent->parent);
+
+ len = snprintf(buf, PAGE_SIZE, "platform:%s\n", pdev->name);
+ }
+
+ return len;
}
static DEVICE_ATTR_RO(modalias);
@@ -44,13 +55,18 @@ static int serdev_device_uevent(struct device *dev, struct kobj_uevent_env *env)
{
int rc;
- /* TODO: platform modalias */
-
rc = acpi_device_uevent_modalias(dev, env);
if (rc != -ENODEV)
return rc;
- return of_device_uevent_modalias(dev, env);
+ rc = of_device_uevent_modalias(dev, env);
+ if (rc != -ENODEV)
+ return rc;
+
+ if (dev->parent->parent->bus == &platform_bus_type)
+ rc = dev->parent->parent->bus->uevent(dev->parent->parent, env);
+
+ return rc;
}
static void serdev_device_release(struct device *dev)
@@ -86,11 +102,17 @@ static int serdev_device_match(struct device *dev, struct device_driver *drv)
if (!is_serdev_device(dev))
return 0;
- /* TODO: platform matching */
if (acpi_driver_match_device(dev, drv))
return 1;
- return of_driver_match_device(dev, drv);
+ if (of_driver_match_device(dev, drv))
+ return 1;
+
+ if (dev->parent->parent->bus == &platform_bus_type &&
+ dev->parent->parent->bus->match(dev->parent->parent, drv))
+ return 1;
+
+ return 0;
}
/**
@@ -574,16 +596,45 @@ static inline int acpi_serdev_register_devices(struct serdev_controller *ctrl)
}
#endif /* CONFIG_ACPI */
+static int platform_serdev_register_devices(struct serdev_controller *ctrl)
+{
+ struct serdev_device *serdev;
+ int err;
+
+ if (ctrl->dev.parent->bus != &platform_bus_type)
+ return -ENODEV;
+
+ serdev = serdev_device_alloc(ctrl);
+ if (!serdev) {
+ dev_err(&ctrl->dev, "failed to allocate serdev device for %s\n",
+ dev_name(ctrl->dev.parent));
+ return -ENOMEM;
+ }
+
+ pm_runtime_no_callbacks(&serdev->dev);
+
+ err = serdev_device_add(serdev);
+ if (err) {
+ dev_err(&serdev->dev,
+ "failure adding device. status %d\n", err);
+ serdev_device_put(serdev);
+ }
+
+ return err;
+}
+
+
/**
- * serdev_controller_add() - Add an serdev controller
+ * serdev_controller_add_platform() - Add an serdev controller
* @ctrl: controller to be registered.
+ * @platform: whether to permit fallthrough to platform device probe
*
* Register a controller previously allocated via serdev_controller_alloc() with
- * the serdev core.
+ * the serdev core. Optionally permit probing via a platform device fallback.
*/
-int serdev_controller_add(struct serdev_controller *ctrl)
+int serdev_controller_add_platform(struct serdev_controller *ctrl, bool platform)
{
- int ret_of, ret_acpi, ret;
+ int ret, ret_of, ret_acpi, ret_platform = -ENODEV;
/* Can't register until after driver model init */
if (WARN_ON(!is_registered))
@@ -597,9 +648,12 @@ int serdev_controller_add(struct serdev_controller *ctrl)
ret_of = of_serdev_register_devices(ctrl);
ret_acpi = acpi_serdev_register_devices(ctrl);
- if (ret_of && ret_acpi) {
- dev_dbg(&ctrl->dev, "no devices registered: of:%d acpi:%d\n",
- ret_of, ret_acpi);
+ if (platform)
+ ret_platform = platform_serdev_register_devices(ctrl);
+ if (ret_of && ret_acpi && ret_platform) {
+ dev_dbg(&ctrl->dev, "no devices registered: of:%d acpi:%d "
+ "platform:%d\n",
+ ret_of, ret_acpi, ret_platform);
ret = -ENODEV;
goto err_rpm_disable;
}
@@ -613,7 +667,7 @@ int serdev_controller_add(struct serdev_controller *ctrl)
device_del(&ctrl->dev);
return ret;
};
-EXPORT_SYMBOL_GPL(serdev_controller_add);
+EXPORT_SYMBOL_GPL(serdev_controller_add_platform);
/* Remove a device associated with a controller */
static int serdev_remove_device(struct device *dev, void *data)
diff --git a/drivers/tty/serdev/serdev-ttyport.c b/drivers/tty/serdev/serdev-ttyport.c
index 048a7bc..1070452 100644
--- a/drivers/tty/serdev/serdev-ttyport.c
+++ b/drivers/tty/serdev/serdev-ttyport.c
@@ -7,9 +7,15 @@
#include <linux/tty.h>
#include <linux/tty_driver.h>
#include <linux/poll.h>
+#include <linux/platform_device.h>
+#include <linux/module.h>
#define SERPORT_ACTIVE 1
+static char *pdev_tty_port;
+module_param(pdev_tty_port, charp, 0644);
+MODULE_PARM_DESC(pdev_tty_port, "platform device tty port to claim");
+
struct serport {
struct tty_port *port;
struct tty_struct *tty;
@@ -267,6 +273,7 @@ struct device *serdev_tty_port_register(struct tty_port *port,
{
struct serdev_controller *ctrl;
struct serport *serport;
+ bool platform = false;
int ret;
if (!port || !drv || !parent)
@@ -286,7 +293,28 @@ struct device *serdev_tty_port_register(struct tty_port *port,
port->client_ops = &client_ops;
port->client_data = ctrl;
- ret = serdev_controller_add(ctrl);
+ /* There is not always a way to bind specific platform devices because
+ * they may be defined on platforms without DT or ACPI. When dealing
+ * with a platform devices, do not allow direct binding unless it is
+ * whitelisted by module parameter. If a platform device is otherwise
+ * described by DT or ACPI it will still be bound and this check will
+ * be ignored.
+ */
+ if (parent->bus == &platform_bus_type) {
+ if (pdev_tty_port) {
+ unsigned long pdev_idx;
+ int tty_len = strlen(drv->name);
+
+ if (!strncmp(pdev_tty_port, drv->name, tty_len)) {
+ if (!kstrtoul(pdev_tty_port + tty_len, 10,
+ &pdev_idx) && pdev_idx == idx) {
+ platform = true;
+ }
+ }
+ }
+ }
+
+ ret = serdev_controller_add_platform(ctrl, platform);
if (ret)
goto err_reset_data;
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index cd13065..fd8e37a 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -990,6 +990,21 @@
select SERIAL_CORE_CONSOLE
select SERIAL_EARLYCON
+config SERIAL_MSM_GENI_HALF_SAMPLING
+ bool "Changes clock divider which impacts sampling rate for QUP HW ver greater than 2.5.0"
+ help
+ Clock divider value should be doubled for QUP hardware version
+ greater than 2.5.0.
+ As earlycon can't have HW version awareness, decision is taken
+ based on the configuration.
+
+config SERIAL_MSM_GENI_EARLY_CONSOLE
+ bool "MSM on-chip GENI HW based early console support"
+ select SERIAL_MSM_GENI_HALF_SAMPLING
+ help
+ Serial early console driver for Qualcomm Technologies Inc's GENI
+ based QUP hardware.
+
config SERIAL_QCOM_GENI
tristate "QCOM on-chip GENI based serial port support"
depends on ARCH_QCOM || COMPILE_TEST
diff --git a/drivers/tty/serial/Makefile b/drivers/tty/serial/Makefile
index daac675..3f15dd4 100644
--- a/drivers/tty/serial/Makefile
+++ b/drivers/tty/serial/Makefile
@@ -58,6 +58,7 @@
obj-$(CONFIG_SERIAL_ATMEL) += atmel_serial.o
obj-$(CONFIG_SERIAL_UARTLITE) += uartlite.o
obj-$(CONFIG_SERIAL_MSM) += msm_serial.o
+obj-$(CONFIG_SERIAL_MSM_GENI_EARLY_CONSOLE) += msm_geni_serial_console.o
obj-$(CONFIG_SERIAL_QCOM_GENI) += qcom_geni_serial.o
obj-$(CONFIG_SERIAL_NETX) += netx-serial.o
obj-$(CONFIG_SERIAL_KS8695) += serial_ks8695.o
diff --git a/drivers/tty/serial/msm_geni_serial_console.c b/drivers/tty/serial/msm_geni_serial_console.c
new file mode 100644
index 0000000..345370b
--- /dev/null
+++ b/drivers/tty/serial/msm_geni_serial_console.c
@@ -0,0 +1,566 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2020, The Linux Foundation. All rights reserved.
+ */
+#include <linux/delay.h>
+#include <linux/console.h>
+#include <linux/serial_core.h>
+#include <linux/io.h>
+
+
+#define SE_UART_TX_TRANS_CFG (0x25C)
+#define SE_UART_TX_WORD_LEN (0x268)
+#define SE_UART_TX_STOP_BIT_LEN (0x26C)
+#define SE_UART_TX_TRANS_LEN (0x270)
+#define SE_UART_TX_PARITY_CFG (0x2A4)
+/* SE_UART_TRANS_CFG */
+#define UART_CTS_MASK (BIT(1))
+/* UART M_CMD OP codes */
+#define UART_START_TX (0x1)
+
+#define UART_OVERSAMPLING (32)
+#define DEF_FIFO_DEPTH_WORDS (16)
+#define DEF_TX_WM (2)
+#define DEF_FIFO_WIDTH_BITS (32)
+
+#define GENI_INIT_CFG_REVISION (0x0)
+#define GENI_S_INIT_CFG_REVISION (0x4)
+#define GENI_FORCE_DEFAULT_REG (0x20)
+#define GENI_OUTPUT_CTRL (0x24)
+#define GENI_CGC_CTRL (0x28)
+#define SE_GENI_STATUS (0x40)
+#define GENI_SER_M_CLK_CFG (0x48)
+#define GENI_CLK_CTRL_RO (0x60)
+#define GENI_IF_FIFO_DISABLE_RO (0x64)
+#define GENI_FW_REVISION_RO (0x68)
+#define SE_GENI_CLK_SEL (0x7C)
+#define SE_GENI_BYTE_GRAN (0x254)
+#define SE_GENI_TX_PACKING_CFG0 (0x260)
+#define SE_GENI_TX_PACKING_CFG1 (0x264)
+#define SE_GENI_M_CMD0 (0x600)
+#define SE_GENI_M_CMD_CTRL_REG (0x604)
+#define SE_GENI_M_IRQ_STATUS (0x610)
+#define SE_GENI_M_IRQ_EN (0x614)
+#define SE_GENI_M_IRQ_CLEAR (0x618)
+#define SE_GENI_TX_FIFOn (0x700)
+#define SE_GENI_TX_FIFO_STATUS (0x800)
+#define SE_GENI_TX_WATERMARK_REG (0x80C)
+#define SE_GENI_IOS (0x908)
+#define SE_GENI_M_GP_LENGTH (0x910)
+#define SE_IRQ_EN (0xE1C)
+#define SE_HW_PARAM_0 (0xE24)
+#define SE_HW_PARAM_1 (0xE28)
+
+/* GENI_OUTPUT_CTRL fields */
+#define DEFAULT_IO_OUTPUT_CTRL_MSK (GENMASK(6, 0))
+
+/* GENI_FORCE_DEFAULT_REG fields */
+#define FORCE_DEFAULT (BIT(0))
+
+/* GENI_CGC_CTRL fields */
+#define CFG_AHB_CLK_CGC_ON (BIT(0))
+#define CFG_AHB_WR_ACLK_CGC_ON (BIT(1))
+#define DATA_AHB_CLK_CGC_ON (BIT(2))
+#define SCLK_CGC_ON (BIT(3))
+#define TX_CLK_CGC_ON (BIT(4))
+#define RX_CLK_CGC_ON (BIT(5))
+#define EXT_CLK_CGC_ON (BIT(6))
+#define PROG_RAM_HCLK_OFF (BIT(8))
+#define PROG_RAM_SCLK_OFF (BIT(9))
+#define DEFAULT_CGC_EN (GENMASK(6, 0))
+
+/* GENI_STATUS fields */
+#define M_GENI_CMD_ACTIVE (BIT(0))
+
+/* GENI_SER_M_CLK_CFG/GENI_SER_S_CLK_CFG */
+#define SER_CLK_EN (BIT(0))
+#define CLK_DIV_MSK (GENMASK(15, 4))
+#define CLK_DIV_SHFT (4)
+
+/* CLK_CTRL_RO fields */
+
+/* FIFO_IF_DISABLE_RO fields */
+#define FIFO_IF_DISABLE (BIT(0))
+
+/* FW_REVISION_RO fields */
+#define FW_REV_PROTOCOL_MSK (GENMASK(15, 8))
+#define FW_REV_PROTOCOL_SHFT (8)
+#define FW_REV_VERSION_MSK (GENMASK(7, 0))
+
+/* GENI_CLK_SEL fields */
+#define CLK_SEL_MSK (GENMASK(2, 0))
+
+/* SE_GENI_DMA_MODE_EN */
+#define GENI_DMA_MODE_EN (BIT(0))
+
+/* GENI_M_CMD0 fields */
+#define M_OPCODE_MSK (GENMASK(31, 27))
+#define M_OPCODE_SHFT (27)
+#define M_PARAMS_MSK (GENMASK(26, 0))
+
+/* GENI_M_CMD_CTRL_REG */
+#define M_GENI_CMD_CANCEL BIT(2)
+#define M_GENI_CMD_ABORT BIT(1)
+#define M_GENI_DISABLE BIT(0)
+
+/* GENI_M_IRQ_EN fields */
+#define M_CMD_DONE_EN (BIT(0))
+#define M_CMD_OVERRUN_EN (BIT(1))
+#define M_ILLEGAL_CMD_EN (BIT(2))
+#define M_CMD_FAILURE_EN (BIT(3))
+#define M_CMD_CANCEL_EN (BIT(4))
+#define M_CMD_ABORT_EN (BIT(5))
+#define M_TIMESTAMP_EN (BIT(6))
+#define M_GP_SYNC_IRQ_0_EN (BIT(8))
+#define M_IO_DATA_DEASSERT_EN (BIT(22))
+#define M_IO_DATA_ASSERT_EN (BIT(23))
+#define M_TX_FIFO_RD_ERR_EN (BIT(28))
+#define M_TX_FIFO_WR_ERR_EN (BIT(29))
+#define M_TX_FIFO_WATERMARK_EN (BIT(30))
+#define M_SEC_IRQ_EN (BIT(31))
+#define M_COMMON_GENI_M_IRQ_EN (GENMASK(6, 1) | \
+ M_IO_DATA_DEASSERT_EN | \
+ M_IO_DATA_ASSERT_EN | M_TX_FIFO_RD_ERR_EN | \
+ M_TX_FIFO_WR_ERR_EN)
+
+
+/* GENI_TX_FIFO_STATUS fields */
+#define TX_FIFO_WC (GENMASK(27, 0))
+
+/* SE_IRQ_EN fields */
+#define GENI_M_IRQ_EN (BIT(2))
+
+/* SE_HW_PARAM_0 fields */
+#define TX_FIFO_WIDTH_MSK (GENMASK(29, 24))
+#define TX_FIFO_WIDTH_SHFT (24)
+#define TX_FIFO_DEPTH_MSK (GENMASK(21, 16))
+#define TX_FIFO_DEPTH_SHFT (16)
+
+enum se_protocol_types {
+ NONE,
+ SPI,
+ UART,
+ I2C,
+ I3C,
+};
+
+static void geni_write_reg_earlycon(unsigned int value,
+ void __iomem *base, int offset)
+{
+ writel_relaxed(value, (base + offset));
+}
+
+static unsigned int geni_read_reg_earlycon(void __iomem *base, int offset)
+{
+ return readl_relaxed(base + offset);
+}
+
+static int get_se_proto_earlycon(void __iomem *base)
+{
+ int proto;
+
+ proto = ((geni_read_reg_earlycon(base, GENI_FW_REVISION_RO)
+ & FW_REV_PROTOCOL_MSK) >> FW_REV_PROTOCOL_SHFT);
+ return proto;
+}
+
+static void se_get_packing_config_earlycon(int bpw, int pack_words,
+ bool msb_to_lsb, unsigned long *cfg0, unsigned long *cfg1)
+{
+ u32 cfg[4] = {0};
+ int len;
+ int temp_bpw = bpw;
+ int idx_start = (msb_to_lsb ? (bpw - 1) : 0);
+ int idx = idx_start;
+ int idx_delta = (msb_to_lsb ? -BITS_PER_BYTE : BITS_PER_BYTE);
+ int ceil_bpw = ((bpw & (BITS_PER_BYTE - 1)) ?
+ ((bpw & ~(BITS_PER_BYTE - 1)) + BITS_PER_BYTE) : bpw);
+ int iter = (ceil_bpw * pack_words) >> 3;
+ int i;
+
+ if (unlikely(iter <= 0 || iter > 4)) {
+ *cfg0 = 0;
+ *cfg1 = 0;
+ return;
+ }
+
+ for (i = 0; i < iter; i++) {
+ len = (temp_bpw < BITS_PER_BYTE) ?
+ (temp_bpw - 1) : BITS_PER_BYTE - 1;
+ cfg[i] = ((idx << 5) | (msb_to_lsb << 4) | (len << 1));
+ idx = ((temp_bpw - BITS_PER_BYTE) <= 0) ?
+ ((i + 1) * BITS_PER_BYTE) + idx_start :
+ idx + idx_delta;
+ temp_bpw = ((temp_bpw - BITS_PER_BYTE) <= 0) ?
+ bpw : (temp_bpw - BITS_PER_BYTE);
+ }
+ cfg[iter - 1] |= 1;
+ *cfg0 = cfg[0] | (cfg[1] << 10);
+ *cfg1 = cfg[2] | (cfg[3] << 10);
+}
+
+static int se_geni_irq_en_earlycon(void __iomem *base)
+{
+ unsigned int common_geni_m_irq_en;
+
+ common_geni_m_irq_en = geni_read_reg_earlycon(base,
+ SE_GENI_M_IRQ_EN);
+ common_geni_m_irq_en |= M_COMMON_GENI_M_IRQ_EN;
+ geni_write_reg_earlycon(common_geni_m_irq_en, base,
+ SE_GENI_M_IRQ_EN);
+ return 0;
+}
+
+static int se_io_set_mode_earlycon(void __iomem *base)
+{
+ unsigned int io_mode;
+
+ io_mode = geni_read_reg_earlycon(base, SE_IRQ_EN);
+
+ io_mode |= (GENI_M_IRQ_EN);
+
+ geni_write_reg_earlycon(io_mode, base, SE_IRQ_EN);
+ return 0;
+}
+
+static void se_io_init_earlycon(void __iomem *base)
+{
+ unsigned int io_op_ctrl;
+ unsigned int geni_cgc_ctrl;
+
+ geni_cgc_ctrl = geni_read_reg_earlycon(base, GENI_CGC_CTRL);
+ geni_cgc_ctrl |= DEFAULT_CGC_EN;
+ io_op_ctrl = DEFAULT_IO_OUTPUT_CTRL_MSK;
+ geni_write_reg_earlycon(geni_cgc_ctrl, base, GENI_CGC_CTRL);
+
+ geni_write_reg_earlycon(io_op_ctrl, base, GENI_OUTPUT_CTRL);
+ geni_write_reg_earlycon(FORCE_DEFAULT, base,
+ GENI_FORCE_DEFAULT_REG);
+}
+
+static int geni_se_init_earlycon(void __iomem *base, unsigned int rx_wm,
+ unsigned int rx_rfr)
+{
+ int ret;
+
+ se_io_init_earlycon(base);
+ ret = se_io_set_mode_earlycon(base);
+ if (ret)
+ return ret;
+
+ ret = se_geni_irq_en_earlycon(base);
+ return ret;
+}
+
+static int geni_se_select_fifo_mode_earlycon(void __iomem *base)
+{
+ unsigned int common_geni_m_irq_en;
+
+ geni_write_reg_earlycon(0xFFFFFFFF, base, SE_GENI_M_IRQ_CLEAR);
+ geni_write_reg_earlycon(0xFFFFFFFF, base, SE_IRQ_EN);
+
+ common_geni_m_irq_en = geni_read_reg_earlycon(base,
+ SE_GENI_M_IRQ_EN);
+ geni_write_reg_earlycon(common_geni_m_irq_en, base,
+ SE_GENI_M_IRQ_EN);
+ return 0;
+}
+
+struct msm_geni_serial_earlycon_port {
+ struct uart_port uport;
+ char name[20];
+ unsigned int tx_fifo_depth;
+ unsigned int tx_fifo_width;
+ unsigned int tx_wm;
+ unsigned int xmit_size;
+ void *console_log;
+ unsigned int cur_baud;
+};
+
+#define GET_DEV_PORT(uport) \
+ container_of(uport, struct msm_geni_serial_earlycon_port, uport)
+
+static int get_clk_cfg(unsigned long clk_freq, unsigned long *ser_clk)
+{
+ unsigned long root_freq[] = {7372800, 14745600, 19200000, 29491200,
+ 32000000, 48000000, 64000000, 80000000, 96000000, 100000000,
+ 102400000, 112000000, 120000000, 128000000};
+ int i;
+ int match = -1;
+
+ for (i = 0; i < ARRAY_SIZE(root_freq); i++) {
+ if (clk_freq > root_freq[i])
+ continue;
+
+ if (!(root_freq[i] % clk_freq)) {
+ match = i;
+ break;
+ }
+ }
+ if (match != -1)
+ *ser_clk = root_freq[match];
+
+ return match;
+}
+
+
+static int get_clk_div_rate(unsigned int baud, unsigned long *desired_clk_rate)
+{
+ unsigned long ser_clk;
+ int dfs_index;
+ int clk_div = 0;
+
+ *desired_clk_rate = baud * UART_OVERSAMPLING;
+ dfs_index = get_clk_cfg(*desired_clk_rate, &ser_clk);
+ if (dfs_index < 0) {
+ clk_div = -EINVAL;
+ goto exit_get_clk_div_rate;
+ }
+
+ clk_div = ser_clk / *desired_clk_rate;
+ *desired_clk_rate = ser_clk;
+exit_get_clk_div_rate:
+ return clk_div;
+}
+
+
+static void msm_geni_serial_wr_char(struct uart_port *uport, int ch)
+{
+ geni_write_reg_earlycon(ch, uport->membase, SE_GENI_TX_FIFOn);
+ /*
+ * Ensure FIFO write clear goes through before
+ * next iteration.
+ */
+ mb();
+
+}
+
+static int msm_geni_serial_poll_bit(struct uart_port *uport,
+ int offset, int bit_field, bool set)
+{
+ int iter = 0;
+ unsigned int reg;
+ bool met = false;
+ struct msm_geni_serial_earlycon_port *port = NULL;
+ bool cond = false;
+ unsigned int baud = 115200;
+ unsigned int fifo_bits = DEF_FIFO_DEPTH_WORDS * DEF_FIFO_WIDTH_BITS;
+ unsigned long total_iter = 1000;
+
+
+ if (uport->private_data && !uart_console(uport)) {
+ port = GET_DEV_PORT(uport);
+ baud = (port->cur_baud ? port->cur_baud : 115200);
+ fifo_bits = port->tx_fifo_depth * port->tx_fifo_width;
+ /*
+ * Total polling iterations based on FIFO worth of bytes to be
+ * sent at current baud .Add a little fluff to the wait.
+ */
+ total_iter = ((fifo_bits * USEC_PER_SEC) / baud) / 10;
+ total_iter += 50;
+ }
+
+ while (iter < total_iter) {
+ reg = geni_read_reg_earlycon(uport->membase, offset);
+ cond = reg & bit_field;
+ if (cond == set) {
+ met = true;
+ break;
+ }
+ udelay(10);
+ iter++;
+ }
+ return met;
+}
+
+static void msm_geni_serial_poll_cancel_tx(struct uart_port *uport)
+{
+ int done = 0;
+ unsigned int irq_clear = M_CMD_DONE_EN;
+
+ done = msm_geni_serial_poll_bit(uport, SE_GENI_M_IRQ_STATUS,
+ M_CMD_DONE_EN, true);
+ if (!done) {
+ geni_write_reg_earlycon(M_GENI_CMD_ABORT, uport->membase,
+ SE_GENI_M_CMD_CTRL_REG);
+ irq_clear |= M_CMD_ABORT_EN;
+ msm_geni_serial_poll_bit(uport, SE_GENI_M_IRQ_STATUS,
+ M_CMD_ABORT_EN, true);
+ }
+ geni_write_reg_earlycon(irq_clear, uport->membase,
+ SE_GENI_M_IRQ_CLEAR);
+}
+
+static void msm_geni_serial_setup_tx(struct uart_port *uport,
+ unsigned int xmit_size)
+{
+ u32 m_cmd = 0;
+
+ geni_write_reg_earlycon(xmit_size, uport->membase,
+ SE_UART_TX_TRANS_LEN);
+ m_cmd |= (UART_START_TX << M_OPCODE_SHFT);
+ geni_write_reg_earlycon(m_cmd, uport->membase, SE_GENI_M_CMD0);
+ /*
+ * Writes to enable the primary sequencer should go through before
+ * exiting this function.
+ */
+ mb();
+}
+
+
+static void
+__msm_geni_serial_console_write(struct uart_port *uport, const char *s,
+ unsigned int count)
+{
+ int new_line = 0;
+ int i;
+ int bytes_to_send = count;
+ int fifo_depth = DEF_FIFO_DEPTH_WORDS;
+ int tx_wm = DEF_TX_WM;
+
+ for (i = 0; i < count; i++) {
+ if (s[i] == '\n')
+ new_line++;
+ }
+
+ bytes_to_send += new_line;
+ geni_write_reg_earlycon(tx_wm, uport->membase,
+ SE_GENI_TX_WATERMARK_REG);
+ msm_geni_serial_setup_tx(uport, bytes_to_send);
+ i = 0;
+ while (i < count) {
+ u32 chars_to_write = 0;
+ u32 avail_fifo_bytes = (fifo_depth - tx_wm);
+ /*
+ * If the WM bit never set, then the Tx state machine is not
+ * in a valid state, so break, cancel/abort any existing
+ * command. Unfortunately the current data being written is
+ * lost.
+ */
+ while (!msm_geni_serial_poll_bit(uport, SE_GENI_M_IRQ_STATUS,
+ M_TX_FIFO_WATERMARK_EN, true))
+ break;
+ chars_to_write = min((unsigned int)(count - i),
+ avail_fifo_bytes);
+ if ((chars_to_write << 1) > avail_fifo_bytes)
+ chars_to_write = (avail_fifo_bytes >> 1);
+ uart_console_write(uport, (s + i), chars_to_write,
+ msm_geni_serial_wr_char);
+ geni_write_reg_earlycon(M_TX_FIFO_WATERMARK_EN,
+ uport->membase, SE_GENI_M_IRQ_CLEAR);
+ /* Ensure this goes through before polling for WM IRQ again.*/
+ mb();
+ i += chars_to_write;
+ }
+ msm_geni_serial_poll_cancel_tx(uport);
+}
+
+
+static void
+msm_geni_serial_early_console_write(struct console *con, const char *s,
+ unsigned int n)
+{
+ struct earlycon_device *dev = con->data;
+
+ __msm_geni_serial_console_write(&dev->port, s, n);
+}
+
+static int __init
+msm_geni_serial_earlycon_setup(struct earlycon_device *dev,
+ const char *opt)
+{
+ struct uart_port *uport = &dev->port;
+ int ret = 0;
+ u32 tx_trans_cfg = 0;
+ u32 tx_parity_cfg = 0;
+ u32 rx_trans_cfg = 0;
+ u32 rx_parity_cfg = 0;
+ u32 stop_bit = 0;
+ u32 rx_stale = 0;
+ u32 bits_per_char = 0;
+ u32 s_clk_cfg = 0;
+ u32 baud = 115200;
+ int clk_div;
+ unsigned long clk_rate;
+ unsigned long cfg0, cfg1;
+
+ if (!uport->membase) {
+ ret = -ENOMEM;
+ goto exit_geni_serial_earlyconsetup;
+ }
+
+ if (get_se_proto_earlycon(uport->membase) != UART) {
+ ret = -ENXIO;
+ goto exit_geni_serial_earlyconsetup;
+ }
+
+ /*
+ * Ignore Flow control.
+ * Disable Tx Parity.
+ * Don't check Parity during Rx.
+ * Disable Rx Parity.
+ * n = 8.
+ * Stop bit = 0.
+ * Stale timeout in bit-time (3 chars worth).
+ */
+ tx_trans_cfg |= UART_CTS_MASK;
+ tx_parity_cfg = 0;
+ rx_trans_cfg = 0;
+ rx_parity_cfg = 0;
+ bits_per_char = 0x8;
+ stop_bit = 0;
+ rx_stale = 0x18;
+ clk_div = get_clk_div_rate(baud, &clk_rate);
+ if (clk_div <= 0) {
+ ret = -EINVAL;
+ goto exit_geni_serial_earlyconsetup;
+ }
+
+ if (IS_ENABLED(CONFIG_SERIAL_MSM_GENI_HALF_SAMPLING))
+ clk_div *= 2;
+
+ s_clk_cfg |= SER_CLK_EN;
+ s_clk_cfg |= (clk_div << CLK_DIV_SHFT);
+
+ /*
+ * Make an unconditional cancel on the main sequencer to reset
+ * it else we could end up in data loss scenarios.
+ */
+ geni_write_reg_earlycon(0x21, uport->membase, GENI_SER_M_CLK_CFG);
+ geni_read_reg_earlycon(uport->membase, GENI_SER_M_CLK_CFG);
+
+ msm_geni_serial_poll_cancel_tx(uport);
+
+ se_get_packing_config_earlycon(8, 1, false, &cfg0, &cfg1);
+ geni_se_init_earlycon(uport->membase, (DEF_FIFO_DEPTH_WORDS >> 1),
+ (DEF_FIFO_DEPTH_WORDS - 2));
+ geni_se_select_fifo_mode_earlycon(uport->membase);
+ geni_write_reg_earlycon(cfg0, uport->membase,
+ SE_GENI_TX_PACKING_CFG0);
+ geni_write_reg_earlycon(cfg1, uport->membase,
+ SE_GENI_TX_PACKING_CFG1);
+ geni_write_reg_earlycon(tx_trans_cfg, uport->membase,
+ SE_UART_TX_TRANS_CFG);
+ geni_write_reg_earlycon(tx_parity_cfg, uport->membase,
+ SE_UART_TX_PARITY_CFG);
+ geni_write_reg_earlycon(bits_per_char, uport->membase,
+ SE_UART_TX_WORD_LEN);
+ geni_write_reg_earlycon(stop_bit, uport->membase,
+ SE_UART_TX_STOP_BIT_LEN);
+ geni_write_reg_earlycon(s_clk_cfg, uport->membase,
+ GENI_SER_M_CLK_CFG);
+ geni_read_reg_earlycon(uport->membase,
+ GENI_SER_M_CLK_CFG);
+
+ dev->con->write = msm_geni_serial_early_console_write;
+ dev->con->setup = NULL;
+ /*
+ * Ensure that the early console setup completes before
+ * returning.
+ */
+ mb();
+exit_geni_serial_earlyconsetup:
+ return ret;
+}
+OF_EARLYCON_DECLARE(msm_geni_serial, "qcom,msm-geni-console",
+ msm_geni_serial_earlycon_setup);
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 80fa06b..d3ef0f6 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -2559,6 +2559,7 @@ struct tty_driver *uart_console_device(struct console *co, int *index)
*index = co->index;
return p->tty_driver;
}
+EXPORT_SYMBOL_GPL(uart_console_device);
static ssize_t uart_get_attr_uartclk(struct device *dev,
struct device_attribute *attr, char *buf)
diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index cee0274..8b4a46a 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -134,17 +134,10 @@ static struct sysrq_key_op sysrq_unraw_op = {
static void sysrq_handle_crash(int key)
{
- char *killer = NULL;
-
- /* we need to release the RCU read lock here,
- * otherwise we get an annoying
- * 'BUG: sleeping function called from invalid context'
- * complaint from the kernel before the panic.
- */
+ /* release the RCU read lock before crashing */
rcu_read_unlock();
- panic_on_oops = 1; /* force panic */
- wmb();
- *killer = 1;
+
+ panic("sysrq triggered crash\n");
}
static struct sysrq_key_op sysrq_crash_op = {
.handler = sysrq_handle_crash,
diff --git a/drivers/usb/common/common.c b/drivers/usb/common/common.c
index 73c8e65..9c5c536 100644
--- a/drivers/usb/common/common.c
+++ b/drivers/usb/common/common.c
@@ -100,6 +100,7 @@ static const char *const usb_dr_modes[] = {
[USB_DR_MODE_HOST] = "host",
[USB_DR_MODE_PERIPHERAL] = "peripheral",
[USB_DR_MODE_OTG] = "otg",
+ [USB_DR_MODE_DRD] = "drd",
};
static enum usb_dr_mode usb_get_dr_mode_from_string(const char *str)
diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
index 2025261..339df67 100644
--- a/drivers/usb/core/config.c
+++ b/drivers/usb/core/config.c
@@ -1086,6 +1086,15 @@ int usb_get_bos_descriptor(struct usb_device *dev)
case USB_PTM_CAP_TYPE:
dev->bos->ptm_cap =
(struct usb_ptm_cap_descriptor *)buffer;
+ break;
+ case USB_CAP_TYPE_CONFIG_SUMMARY:
+ /* one such desc per function */
+ if (!dev->bos->num_config_summary_desc)
+ dev->bos->config_summary =
+ (struct usb_config_summary_descriptor *)buffer;
+
+ dev->bos->num_config_summary_desc++;
+ break;
default:
break;
}
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index 3255b2bb..60c2ec4 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -1458,6 +1458,9 @@ int usb_suspend(struct device *dev, pm_message_t msg)
struct usb_device *udev = to_usb_device(dev);
int r;
+ if (udev->bus->skip_resume && udev->state == USB_STATE_SUSPENDED)
+ return 0;
+
unbind_no_pm_drivers_interfaces(udev);
/* From now on we are sure all drivers support suspend/resume
@@ -1494,6 +1497,15 @@ int usb_resume(struct device *dev, pm_message_t msg)
struct usb_device *udev = to_usb_device(dev);
int status;
+ /*
+ * Some buses would like to keep their devices in suspend
+ * state after system resume. Their resume happen when
+ * a remote wakeup is detected or interface driver start
+ * I/O.
+ */
+ if (udev->bus->skip_resume)
+ return 0;
+
/* For all calls, take the device back to full power and
* tell the PM core in case it was autosuspended previously.
* Unbind the interfaces that will need rebinding later,
diff --git a/drivers/usb/core/generic.c b/drivers/usb/core/generic.c
index bc8242b..761073d 100644
--- a/drivers/usb/core/generic.c
+++ b/drivers/usb/core/generic.c
@@ -42,6 +42,36 @@ static int is_activesync(struct usb_interface_descriptor *desc)
&& desc->bInterfaceProtocol == 1;
}
+static int get_usb_audio_config(struct usb_host_bos *bos)
+{
+ unsigned int desc_cnt, num_cfg_desc, len = 0;
+ unsigned char *buffer;
+ struct usb_config_summary_descriptor *conf_summary;
+
+ if (!bos || !bos->config_summary)
+ goto done;
+
+ num_cfg_desc = bos->num_config_summary_desc;
+ conf_summary = bos->config_summary;
+ buffer = (unsigned char *)conf_summary;
+ for (desc_cnt = 0; desc_cnt < num_cfg_desc; desc_cnt++) {
+ conf_summary =
+ (struct usb_config_summary_descriptor *)(buffer + len);
+
+ len += conf_summary->bLength;
+
+ if (conf_summary->bcdVersion != USB_CONFIG_SUMMARY_DESC_REV ||
+ conf_summary->bClass != USB_CLASS_AUDIO)
+ continue;
+
+ /* return 1st config as per device preference */
+ return conf_summary->bConfigurationIndex[0];
+ }
+
+done:
+ return -EINVAL;
+}
+
int usb_choose_configuration(struct usb_device *udev)
{
int i;
@@ -145,7 +175,10 @@ int usb_choose_configuration(struct usb_device *udev)
insufficient_power, plural(insufficient_power));
if (best) {
- i = best->desc.bConfigurationValue;
+ /* choose device preferred config */
+ i = get_usb_audio_config(udev->bos);
+ if (i < 0)
+ i = best->desc.bConfigurationValue;
dev_dbg(&udev->dev,
"configuration #%d chosen from %d choice%s\n",
i, num_configs, plural(num_configs));
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index b82a7d7..ebc4a84 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -2233,8 +2233,72 @@ int usb_hcd_get_frame_number (struct usb_device *udev)
return hcd->driver->get_frame_number (hcd);
}
+int usb_hcd_sec_event_ring_setup(struct usb_device *udev,
+ unsigned int intr_num)
+{
+ struct usb_hcd *hcd = bus_to_hcd(udev->bus);
+
+ if (!HCD_RH_RUNNING(hcd))
+ return 0;
+
+ return hcd->driver->sec_event_ring_setup(hcd, intr_num);
+}
+
+int usb_hcd_sec_event_ring_cleanup(struct usb_device *udev,
+ unsigned int intr_num)
+{
+ struct usb_hcd *hcd = bus_to_hcd(udev->bus);
+
+ if (!HCD_RH_RUNNING(hcd))
+ return 0;
+
+ return hcd->driver->sec_event_ring_cleanup(hcd, intr_num);
+}
+
/*-------------------------------------------------------------------------*/
+phys_addr_t
+usb_hcd_get_sec_event_ring_phys_addr(struct usb_device *udev,
+ unsigned int intr_num, dma_addr_t *dma)
+{
+ struct usb_hcd *hcd = bus_to_hcd(udev->bus);
+
+ if (!HCD_RH_RUNNING(hcd))
+ return 0;
+
+ return hcd->driver->get_sec_event_ring_phys_addr(hcd, intr_num, dma);
+}
+
+phys_addr_t
+usb_hcd_get_xfer_ring_phys_addr(struct usb_device *udev,
+ struct usb_host_endpoint *ep, dma_addr_t *dma)
+{
+ struct usb_hcd *hcd = bus_to_hcd(udev->bus);
+
+ if (!HCD_RH_RUNNING(hcd))
+ return 0;
+
+ return hcd->driver->get_xfer_ring_phys_addr(hcd, udev, ep, dma);
+}
+
+int usb_hcd_get_controller_id(struct usb_device *udev)
+{
+ struct usb_hcd *hcd = bus_to_hcd(udev->bus);
+
+ if (!HCD_RH_RUNNING(hcd))
+ return -EINVAL;
+
+ return hcd->driver->get_core_id(hcd);
+}
+
+int usb_hcd_stop_endpoint(struct usb_device *udev,
+ struct usb_host_endpoint *ep)
+{
+ struct usb_hcd *hcd = bus_to_hcd(udev->bus);
+
+ return hcd->driver->stop_endpoint(hcd, udev, ep);
+}
+
#ifdef CONFIG_PM
int hcd_bus_suspend(struct usb_device *rhdev, pm_message_t msg)
@@ -2503,6 +2567,7 @@ void usb_hc_died (struct usb_hcd *hcd)
}
spin_unlock_irqrestore (&hcd_root_hub_lock, flags);
/* Make sure that the other roothub is also deallocated. */
+ usb_atomic_notify_dead_bus(&hcd->self);
}
EXPORT_SYMBOL_GPL (usb_hc_died);
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index f1a1103..e57cab7 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -18,6 +18,7 @@
#include <linux/sched/mm.h>
#include <linux/list.h>
#include <linux/slab.h>
+#include <linux/kcov.h>
#include <linux/ioctl.h>
#include <linux/usb.h>
#include <linux/usbdevice_fs.h>
@@ -5376,6 +5377,8 @@ static void hub_event(struct work_struct *work)
hub_dev = hub->intfdev;
intf = to_usb_interface(hub_dev);
+ kcov_remote_start_usb((u64)hdev->bus->busnum);
+
dev_dbg(hub_dev, "state %d ports %d chg %04x evt %04x\n",
hdev->state, hdev->maxchild,
/* NOTE: expects max 15 ports... */
@@ -5482,6 +5485,8 @@ static void hub_event(struct work_struct *work)
/* Balance the stuff in kick_hub_wq() and allow autosuspend */
usb_autopm_put_interface(intf);
kref_put(&hub->kref, hub_release);
+
+ kcov_remote_stop();
}
static const struct usb_device_id hub_id_table[] = {
diff --git a/drivers/usb/core/notify.c b/drivers/usb/core/notify.c
index ab474b1..1dd6809 100644
--- a/drivers/usb/core/notify.c
+++ b/drivers/usb/core/notify.c
@@ -19,6 +19,7 @@
#include "usb.h"
static BLOCKING_NOTIFIER_HEAD(usb_notifier_list);
+static ATOMIC_NOTIFIER_HEAD(usb_atomic_notifier_list);
/**
* usb_register_notify - register a notifier callback whenever a usb change happens
@@ -69,3 +70,33 @@ void usb_notify_remove_bus(struct usb_bus *ubus)
{
blocking_notifier_call_chain(&usb_notifier_list, USB_BUS_REMOVE, ubus);
}
+
+/**
+ * usb_register_atomic_notify - register a atomic notifier callback whenever a
+ * HC dies
+ * @nb: pointer to the atomic notifier block for the callback events.
+ *
+ */
+void usb_register_atomic_notify(struct notifier_block *nb)
+{
+ atomic_notifier_chain_register(&usb_atomic_notifier_list, nb);
+}
+EXPORT_SYMBOL_GPL(usb_register_atomic_notify);
+
+/**
+ * usb_unregister_atomic_notify - unregister a atomic notifier callback
+ * @nb: pointer to the notifier block for the callback events.
+ *
+ */
+void usb_unregister_atomic_notify(struct notifier_block *nb)
+{
+ atomic_notifier_chain_unregister(&usb_atomic_notifier_list, nb);
+}
+EXPORT_SYMBOL_GPL(usb_unregister_atomic_notify);
+
+
+void usb_atomic_notify_dead_bus(struct usb_bus *ubus)
+{
+ atomic_notifier_call_chain(&usb_atomic_notifier_list, USB_BUS_DIED,
+ ubus);
+}
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index 4ebfbd7..35f6321 100644
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -825,6 +825,63 @@ int usb_get_current_frame_number(struct usb_device *dev)
}
EXPORT_SYMBOL_GPL(usb_get_current_frame_number);
+int usb_sec_event_ring_setup(struct usb_device *dev,
+ unsigned int intr_num)
+{
+ if (dev->state == USB_STATE_NOTATTACHED)
+ return 0;
+
+ return usb_hcd_sec_event_ring_setup(dev, intr_num);
+}
+EXPORT_SYMBOL(usb_sec_event_ring_setup);
+
+int usb_sec_event_ring_cleanup(struct usb_device *dev,
+ unsigned int intr_num)
+{
+ return usb_hcd_sec_event_ring_cleanup(dev, intr_num);
+}
+EXPORT_SYMBOL(usb_sec_event_ring_cleanup);
+
+phys_addr_t
+usb_get_sec_event_ring_phys_addr(struct usb_device *dev,
+ unsigned int intr_num, dma_addr_t *dma)
+{
+ if (dev->state == USB_STATE_NOTATTACHED)
+ return 0;
+
+ return usb_hcd_get_sec_event_ring_phys_addr(dev, intr_num, dma);
+}
+EXPORT_SYMBOL_GPL(usb_get_sec_event_ring_phys_addr);
+
+phys_addr_t usb_get_xfer_ring_phys_addr(struct usb_device *dev,
+ struct usb_host_endpoint *ep, dma_addr_t *dma)
+{
+ if (dev->state == USB_STATE_NOTATTACHED)
+ return 0;
+
+ return usb_hcd_get_xfer_ring_phys_addr(dev, ep, dma);
+}
+EXPORT_SYMBOL_GPL(usb_get_xfer_ring_phys_addr);
+
+/**
+ * usb_get_controller_id - returns the host controller id.
+ * @dev: the device whose host controller id is being queried.
+ */
+int usb_get_controller_id(struct usb_device *dev)
+{
+ if (dev->state == USB_STATE_NOTATTACHED)
+ return -EINVAL;
+
+ return usb_hcd_get_controller_id(dev);
+}
+EXPORT_SYMBOL_GPL(usb_get_controller_id);
+
+int usb_stop_endpoint(struct usb_device *dev, struct usb_host_endpoint *ep)
+{
+ return usb_hcd_stop_endpoint(dev, ep);
+}
+EXPORT_SYMBOL_GPL(usb_stop_endpoint);
+
/*-------------------------------------------------------------------*/
/*
* __usb_get_extra_descriptor() finds a descriptor of specific type in the
diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h
index c0df5a4..dff5b36 100644
--- a/drivers/usb/core/usb.h
+++ b/drivers/usb/core/usb.h
@@ -192,6 +192,7 @@ extern void usb_notify_add_device(struct usb_device *udev);
extern void usb_notify_remove_device(struct usb_device *udev);
extern void usb_notify_add_bus(struct usb_bus *ubus);
extern void usb_notify_remove_bus(struct usb_bus *ubus);
+extern void usb_atomic_notify_dead_bus(struct usb_bus *ubus);
extern void usb_hub_adjust_deviceremovable(struct usb_device *hdev,
struct usb_hub_descriptor *desc);
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index c6afc42..784ee76 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -215,6 +215,12 @@
config USB_F_TCM
tristate
+config USB_F_ACC
+ tristate
+
+config USB_F_AUDIO_SRC
+ tristate
+
# this first set of drivers all depend on bulk-capable hardware.
config USB_CONFIGFS
@@ -229,6 +235,14 @@
appropriate symbolic links.
For more information see Documentation/usb/gadget_configfs.txt.
+config USB_CONFIGFS_UEVENT
+ bool "Uevent notification of Gadget state"
+ depends on USB_CONFIGFS
+ help
+ Enable uevent notifications to userspace when the gadget
+ state changes. The gadget can be in any of the following
+ three states: "CONNECTED/DISCONNECTED/CONFIGURED"
+
config USB_CONFIGFS_SERIAL
bool "Generic serial bulk in/out"
depends on USB_CONFIGFS
@@ -370,6 +384,23 @@
implemented in kernel space (for instance Ethernet, serial or
mass storage) and other are implemented in user space.
+config USB_CONFIGFS_F_ACC
+ bool "Accessory gadget"
+ depends on USB_CONFIGFS
+ depends on HID=y
+ select USB_F_ACC
+ help
+ USB gadget Accessory support
+
+config USB_CONFIGFS_F_AUDIO_SRC
+ bool "Audio Source gadget"
+ depends on USB_CONFIGFS
+ depends on SND
+ select SND_PCM
+ select USB_F_AUDIO_SRC
+ help
+ USB gadget Audio Source support
+
config USB_CONFIGFS_F_UAC1
bool "Audio Class 1.0"
depends on USB_CONFIGFS
@@ -484,34 +515,6 @@
Both protocols can work on USB2.0 and USB3.0.
UAS utilizes the USB 3.0 feature called streams support.
-choice
- tristate "USB Gadget precomposed configurations"
- default USB_ETH
- optional
- help
- A Linux "Gadget Driver" talks to the USB Peripheral Controller
- driver through the abstract "gadget" API. Some other operating
- systems call these "client" drivers, of which "class drivers"
- are a subset (implementing a USB device class specification).
- A gadget driver implements one or more USB functions using
- the peripheral hardware.
-
- Gadget drivers are hardware-neutral, or "platform independent",
- except that they sometimes must understand quirks or limitations
- of the particular controllers they work with. For example, when
- a controller doesn't support alternate configurations or provide
- enough of the right types of endpoints, the gadget driver might
- not be able work with that controller, or might need to implement
- a less common variant of a device class protocol.
-
- The available choices each represent a single precomposed USB
- gadget configuration. In the device model, each option contains
- both the device instantiation as a child for a USB gadget
- controller, and the relevant drivers for each function declared
- by the device.
-
source "drivers/usb/gadget/legacy/Kconfig"
-endchoice
-
endif # USB_GADGET
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index a76ed4a..7d61829 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -476,6 +476,122 @@ int usb_interface_id(struct usb_configuration *config,
}
EXPORT_SYMBOL_GPL(usb_interface_id);
+static int usb_func_wakeup_int(struct usb_function *func)
+{
+ int ret;
+ struct usb_gadget *gadget;
+
+ if (!func || !func->config || !func->config->cdev ||
+ !func->config->cdev->gadget)
+ return -EINVAL;
+
+ pr_debug("%s - %s function wakeup\n",
+ __func__, func->name ? func->name : "");
+
+ gadget = func->config->cdev->gadget;
+ if ((gadget->speed != USB_SPEED_SUPER) || !func->func_wakeup_allowed) {
+ DBG(func->config->cdev,
+ "Function Wakeup is not possible. speed=%u, func_wakeup_allowed=%u\n",
+ gadget->speed,
+ func->func_wakeup_allowed);
+
+ return -ENOTSUPP;
+ }
+
+ ret = usb_gadget_func_wakeup(gadget, func->intf_id);
+
+ return ret;
+}
+
+/**
+ * usb_func_wakeup - wakes up a composite device function.
+ * @func: composite device function to wake up.
+ *
+ * Returns 0 on success or a negative error value.
+ */
+int usb_func_wakeup(struct usb_function *func)
+{
+ int ret;
+ unsigned long flags;
+
+ if (!func || !func->config || !func->config->cdev)
+ return -EINVAL;
+
+ pr_debug("%s function wakeup\n",
+ func->name ? func->name : "");
+
+ spin_lock_irqsave(&func->config->cdev->lock, flags);
+ ret = usb_func_wakeup_int(func);
+ if (ret == -EAGAIN) {
+ DBG(func->config->cdev,
+ "Function wakeup for %s could not complete due to suspend state. Delayed until after bus resume.\n",
+ func->name ? func->name : "");
+ ret = 0;
+ } else if (ret < 0 && ret != -ENOTSUPP) {
+ ERROR(func->config->cdev,
+ "Failed to wake function %s from suspend state. ret=%d. Canceling USB request.\n",
+ func->name ? func->name : "", ret);
+ }
+
+ spin_unlock_irqrestore(&func->config->cdev->lock, flags);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(usb_func_wakeup);
+
+/**
+ * usb_func_ep_queue - queues (submits) an I/O request to a function endpoint.
+ * This function is similar to the usb_ep_queue function, but in addition it
+ * also checks whether the function is in Super Speed USB Function Suspend
+ * state, and if so a Function Wake notification is sent to the host
+ * (USB 3.0 spec, section 9.2.5.2).
+ * @func: the function which issues the USB I/O request.
+ * @ep:the endpoint associated with the request
+ * @req:the request being submitted
+ * @gfp_flags: GFP_* flags to use in case the lower level driver couldn't
+ * pre-allocate all necessary memory with the request.
+ */
+int usb_func_ep_queue(struct usb_function *func, struct usb_ep *ep,
+ struct usb_request *req, gfp_t gfp_flags)
+{
+ int ret;
+ struct usb_gadget *gadget;
+
+ if (!func || !func->config || !func->config->cdev ||
+ !func->config->cdev->gadget || !ep || !req) {
+ ret = -EINVAL;
+ goto done;
+ }
+
+ pr_debug("Function %s queueing new data into ep %u\n",
+ func->name ? func->name : "", ep->address);
+
+ gadget = func->config->cdev->gadget;
+ if (func->func_is_suspended && func->func_wakeup_allowed) {
+ ret = usb_gadget_func_wakeup(gadget, func->intf_id);
+ if (ret == -EAGAIN) {
+ pr_debug("bus suspended func wakeup for %s delayed until bus resume.\n",
+ func->name ? func->name : "");
+ } else if (ret < 0 && ret != -ENOTSUPP) {
+ pr_err("Failed to wake function %s from suspend state. ret=%d.\n",
+ func->name ? func->name : "", ret);
+ }
+ goto done;
+ }
+
+ if (!func->func_is_suspended)
+ ret = 0;
+
+ if (func->func_is_suspended && !func->func_wakeup_allowed) {
+ ret = -ENOTSUPP;
+ goto done;
+ }
+
+ ret = usb_ep_queue(ep, req, gfp_flags);
+done:
+ return ret;
+}
+EXPORT_SYMBOL_GPL(usb_func_ep_queue);
+
static u8 encode_bMaxPower(enum usb_device_speed speed,
struct usb_configuration *c)
{
diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c
index 3d4710c..db54d72 100644
--- a/drivers/usb/gadget/configfs.c
+++ b/drivers/usb/gadget/configfs.c
@@ -10,6 +10,31 @@
#include "u_f.h"
#include "u_os_desc.h"
+#ifdef CONFIG_USB_CONFIGFS_UEVENT
+#include <linux/platform_device.h>
+#include <linux/kdev_t.h>
+#include <linux/usb/ch9.h>
+
+#ifdef CONFIG_USB_CONFIGFS_F_ACC
+extern int acc_ctrlrequest(struct usb_composite_dev *cdev,
+ const struct usb_ctrlrequest *ctrl);
+void acc_disconnect(void);
+#endif
+static struct class *android_class;
+static struct device *android_device;
+static int index;
+
+struct device *create_function_device(char *name)
+{
+ if (android_device && !IS_ERR(android_device))
+ return device_create(android_class, android_device,
+ MKDEV(0, index++), NULL, name);
+ else
+ return ERR_PTR(-EINVAL);
+}
+EXPORT_SYMBOL_GPL(create_function_device);
+#endif
+
int check_user_usb_string(const char *name,
struct usb_gadget_strings *stringtab_dev)
{
@@ -63,6 +88,12 @@ struct gadget_info {
char qw_sign[OS_STRING_QW_SIGN_LEN];
spinlock_t spinlock;
bool unbind;
+#ifdef CONFIG_USB_CONFIGFS_UEVENT
+ bool connected;
+ bool sw_connected;
+ struct work_struct work;
+ struct device *dev;
+#endif
};
static inline struct gadget_info *to_gadget_info(struct config_item *item)
@@ -284,7 +315,7 @@ static ssize_t gadget_dev_desc_UDC_store(struct config_item *item,
mutex_lock(&gi->lock);
- if (!strlen(name)) {
+ if (!strlen(name) || strcmp(name, "none") == 0) {
ret = unregister_gadget(gi);
if (ret)
goto err;
@@ -1391,6 +1422,60 @@ static int configfs_composite_bind(struct usb_gadget *gadget,
return ret;
}
+#ifdef CONFIG_USB_CONFIGFS_UEVENT
+static void android_work(struct work_struct *data)
+{
+ struct gadget_info *gi = container_of(data, struct gadget_info, work);
+ struct usb_composite_dev *cdev = &gi->cdev;
+ char *disconnected[2] = { "USB_STATE=DISCONNECTED", NULL };
+ char *connected[2] = { "USB_STATE=CONNECTED", NULL };
+ char *configured[2] = { "USB_STATE=CONFIGURED", NULL };
+ /* 0-connected 1-configured 2-disconnected*/
+ bool status[3] = { false, false, false };
+ unsigned long flags;
+ bool uevent_sent = false;
+
+ spin_lock_irqsave(&cdev->lock, flags);
+ if (cdev->config)
+ status[1] = true;
+
+ if (gi->connected != gi->sw_connected) {
+ if (gi->connected)
+ status[0] = true;
+ else
+ status[2] = true;
+ gi->sw_connected = gi->connected;
+ }
+ spin_unlock_irqrestore(&cdev->lock, flags);
+
+ if (status[0]) {
+ kobject_uevent_env(&android_device->kobj,
+ KOBJ_CHANGE, connected);
+ pr_info("%s: sent uevent %s\n", __func__, connected[0]);
+ uevent_sent = true;
+ }
+
+ if (status[1]) {
+ kobject_uevent_env(&android_device->kobj,
+ KOBJ_CHANGE, configured);
+ pr_info("%s: sent uevent %s\n", __func__, configured[0]);
+ uevent_sent = true;
+ }
+
+ if (status[2]) {
+ kobject_uevent_env(&android_device->kobj,
+ KOBJ_CHANGE, disconnected);
+ pr_info("%s: sent uevent %s\n", __func__, disconnected[0]);
+ uevent_sent = true;
+ }
+
+ if (!uevent_sent) {
+ pr_info("%s: did not send uevent (%d %d %p)\n", __func__,
+ gi->connected, gi->sw_connected, cdev->config);
+ }
+}
+#endif
+
static void configfs_composite_unbind(struct usb_gadget *gadget)
{
struct usb_composite_dev *cdev;
@@ -1507,14 +1592,91 @@ static void configfs_composite_resume(struct usb_gadget *gadget)
spin_unlock_irqrestore(&gi->spinlock, flags);
}
+#ifdef CONFIG_USB_CONFIGFS_UEVENT
+static int android_setup(struct usb_gadget *gadget,
+ const struct usb_ctrlrequest *c)
+{
+ struct usb_composite_dev *cdev = get_gadget_data(gadget);
+ unsigned long flags;
+ struct gadget_info *gi = container_of(cdev, struct gadget_info, cdev);
+ int value = -EOPNOTSUPP;
+ struct usb_function_instance *fi;
+
+ spin_lock_irqsave(&cdev->lock, flags);
+ if (!gi->connected) {
+ gi->connected = 1;
+ schedule_work(&gi->work);
+ }
+ spin_unlock_irqrestore(&cdev->lock, flags);
+ list_for_each_entry(fi, &gi->available_func, cfs_list) {
+ if (fi != NULL && fi->f != NULL && fi->f->setup != NULL) {
+ value = fi->f->setup(fi->f, c);
+ if (value >= 0)
+ break;
+ }
+ }
+
+#ifdef CONFIG_USB_CONFIGFS_F_ACC
+ if (value < 0)
+ value = acc_ctrlrequest(cdev, c);
+#endif
+
+ if (value < 0)
+ value = composite_setup(gadget, c);
+
+ spin_lock_irqsave(&cdev->lock, flags);
+ if (c->bRequest == USB_REQ_SET_CONFIGURATION &&
+ cdev->config) {
+ schedule_work(&gi->work);
+ }
+ spin_unlock_irqrestore(&cdev->lock, flags);
+
+ return value;
+}
+
+static void android_disconnect(struct usb_gadget *gadget)
+{
+ struct usb_composite_dev *cdev = get_gadget_data(gadget);
+ struct gadget_info *gi = container_of(cdev, struct gadget_info, cdev);
+
+ /* FIXME: There's a race between usb_gadget_udc_stop() which is likely
+ * to set the gadget driver to NULL in the udc driver and this drivers
+ * gadget disconnect fn which likely checks for the gadget driver to
+ * be a null ptr. It happens that unbind (doing set_gadget_data(NULL))
+ * is called before the gadget driver is set to NULL and the udc driver
+ * calls disconnect fn which results in cdev being a null ptr.
+ */
+ if (cdev == NULL) {
+ WARN(1, "%s: gadget driver already disconnected\n", __func__);
+ return;
+ }
+
+ /* accessory HID support can be active while the
+ accessory function is not actually enabled,
+ so we need to inform it when we are disconnected.
+ */
+
+#ifdef CONFIG_USB_CONFIGFS_F_ACC
+ acc_disconnect();
+#endif
+ gi->connected = 0;
+ schedule_work(&gi->work);
+ composite_disconnect(gadget);
+}
+#endif
+
static const struct usb_gadget_driver configfs_driver_template = {
.bind = configfs_composite_bind,
.unbind = configfs_composite_unbind,
-
+#ifdef CONFIG_USB_CONFIGFS_UEVENT
+ .setup = android_setup,
+ .reset = android_disconnect,
+ .disconnect = android_disconnect,
+#else
.setup = configfs_composite_setup,
.reset = configfs_composite_disconnect,
.disconnect = configfs_composite_disconnect,
-
+#endif
.suspend = configfs_composite_suspend,
.resume = configfs_composite_resume,
@@ -1526,6 +1688,89 @@ static const struct usb_gadget_driver configfs_driver_template = {
.match_existing_only = 1,
};
+#ifdef CONFIG_USB_CONFIGFS_UEVENT
+static ssize_t state_show(struct device *pdev, struct device_attribute *attr,
+ char *buf)
+{
+ struct gadget_info *dev = dev_get_drvdata(pdev);
+ struct usb_composite_dev *cdev;
+ char *state = "DISCONNECTED";
+ unsigned long flags;
+
+ if (!dev)
+ goto out;
+
+ cdev = &dev->cdev;
+
+ if (!cdev)
+ goto out;
+
+ spin_lock_irqsave(&cdev->lock, flags);
+ if (cdev->config)
+ state = "CONFIGURED";
+ else if (dev->connected)
+ state = "CONNECTED";
+ spin_unlock_irqrestore(&cdev->lock, flags);
+out:
+ return sprintf(buf, "%s\n", state);
+}
+
+static DEVICE_ATTR(state, S_IRUGO, state_show, NULL);
+
+static struct device_attribute *android_usb_attributes[] = {
+ &dev_attr_state,
+ NULL
+};
+
+static int android_device_create(struct gadget_info *gi)
+{
+ struct device_attribute **attrs;
+ struct device_attribute *attr;
+
+ INIT_WORK(&gi->work, android_work);
+ android_device = device_create(android_class, NULL,
+ MKDEV(0, 0), NULL, "android0");
+ if (IS_ERR(android_device))
+ return PTR_ERR(android_device);
+
+ dev_set_drvdata(android_device, gi);
+
+ attrs = android_usb_attributes;
+ while ((attr = *attrs++)) {
+ int err;
+
+ err = device_create_file(android_device, attr);
+ if (err) {
+ device_destroy(android_device->class,
+ android_device->devt);
+ return err;
+ }
+ }
+
+ return 0;
+}
+
+static void android_device_destroy(void)
+{
+ struct device_attribute **attrs;
+ struct device_attribute *attr;
+
+ attrs = android_usb_attributes;
+ while ((attr = *attrs++))
+ device_remove_file(android_device, attr);
+ device_destroy(android_device->class, android_device->devt);
+}
+#else
+static inline int android_device_create(struct gadget_info *gi)
+{
+ return 0;
+}
+
+static inline void android_device_destroy(void)
+{
+}
+#endif
+
static struct config_group *gadgets_make(
struct config_group *group,
const char *name)
@@ -1578,7 +1823,11 @@ static struct config_group *gadgets_make(
if (!gi->composite.gadget_driver.function)
goto err;
+ if (android_device_create(gi) < 0)
+ goto err;
+
return &gi->group;
+
err:
kfree(gi);
return ERR_PTR(-ENOMEM);
@@ -1587,6 +1836,7 @@ static struct config_group *gadgets_make(
static void gadgets_drop(struct config_group *group, struct config_item *item)
{
config_item_put(item);
+ android_device_destroy();
}
static struct configfs_group_operations gadgets_ops = {
@@ -1626,6 +1876,13 @@ static int __init gadget_cfs_init(void)
config_group_init(&gadget_subsys.su_group);
ret = configfs_register_subsystem(&gadget_subsys);
+
+#ifdef CONFIG_USB_CONFIGFS_UEVENT
+ android_class = class_create(THIS_MODULE, "android_usb");
+ if (IS_ERR(android_class))
+ return PTR_ERR(android_class);
+#endif
+
return ret;
}
module_init(gadget_cfs_init);
@@ -1633,5 +1890,10 @@ module_init(gadget_cfs_init);
static void __exit gadget_cfs_exit(void)
{
configfs_unregister_subsystem(&gadget_subsys);
+#ifdef CONFIG_USB_CONFIGFS_UEVENT
+ if (!IS_ERR(android_class))
+ class_destroy(android_class);
+#endif
+
}
module_exit(gadget_cfs_exit);
diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 71b15c6..5d73c15 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -205,3 +205,46 @@ void usb_ep_autoconfig_reset (struct usb_gadget *gadget)
gadget->out_epnum = 0;
}
EXPORT_SYMBOL_GPL(usb_ep_autoconfig_reset);
+
+/**
+ * usb_ep_autoconfig_by_name - Used to pick the endpoint by name. eg gsi-epin1
+ * @gadget: The device to which the endpoint must belong.
+ * @desc: Endpoint descriptor, with endpoint direction and transfer mode
+ * initialized.
+ * @ep_name: EP name that is to be searched.
+ *
+ */
+struct usb_ep *usb_ep_autoconfig_by_name(
+ struct usb_gadget *gadget,
+ struct usb_endpoint_descriptor *desc,
+ const char *ep_name
+)
+{
+ struct usb_ep *ep;
+ bool ep_found = false;
+
+ if (!ep_name || !strlen(ep_name))
+ goto err;
+
+ list_for_each_entry(ep, &gadget->ep_list, ep_list)
+ if (strncmp(ep->name, ep_name, strlen(ep_name)) == 0 &&
+ !ep->driver_data) {
+ ep_found = true;
+ break;
+ }
+
+ if (ep_found) {
+ desc->bEndpointAddress &= USB_DIR_IN;
+ desc->bEndpointAddress |= ep->ep_num;
+ ep->address = desc->bEndpointAddress;
+ pr_debug("Allocating ep address:%x\n", ep->address);
+ ep->desc = NULL;
+ ep->comp_desc = NULL;
+ return ep;
+ }
+
+err:
+ pr_err("%s:error finding ep %s\n", __func__, ep_name);
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(usb_ep_autoconfig_by_name);
diff --git a/drivers/usb/gadget/function/Makefile b/drivers/usb/gadget/function/Makefile
index 5d3a6cf..dd33a12 100644
--- a/drivers/usb/gadget/function/Makefile
+++ b/drivers/usb/gadget/function/Makefile
@@ -50,3 +50,7 @@
obj-$(CONFIG_USB_F_PRINTER) += usb_f_printer.o
usb_f_tcm-y := f_tcm.o
obj-$(CONFIG_USB_F_TCM) += usb_f_tcm.o
+usb_f_accessory-y := f_accessory.o
+obj-$(CONFIG_USB_F_ACC) += usb_f_accessory.o
+usb_f_audio_source-y := f_audio_source.o
+obj-$(CONFIG_USB_F_AUDIO_SRC) += usb_f_audio_source.o
diff --git a/drivers/usb/gadget/function/f_accessory.c b/drivers/usb/gadget/function/f_accessory.c
new file mode 100644
index 0000000..718e01e
--- /dev/null
+++ b/drivers/usb/gadget/function/f_accessory.c
@@ -0,0 +1,1435 @@
+/*
+ * Gadget Function Driver for Android USB accessories
+ *
+ * Copyright (C) 2011 Google, Inc.
+ * Author: Mike Lockwood <lockwood@android.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+/* #define DEBUG */
+/* #define VERBOSE_DEBUG */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/poll.h>
+#include <linux/delay.h>
+#include <linux/wait.h>
+#include <linux/err.h>
+#include <linux/interrupt.h>
+#include <linux/kthread.h>
+#include <linux/freezer.h>
+#include <linux/kref.h>
+
+#include <linux/types.h>
+#include <linux/file.h>
+#include <linux/device.h>
+#include <linux/miscdevice.h>
+
+#include <linux/hid.h>
+#include <linux/hiddev.h>
+#include <linux/usb.h>
+#include <linux/usb/ch9.h>
+#include <linux/usb/f_accessory.h>
+
+#include <linux/configfs.h>
+#include <linux/usb/composite.h>
+
+#define MAX_INST_NAME_LEN 40
+#define BULK_BUFFER_SIZE 16384
+#define ACC_STRING_SIZE 256
+
+#define PROTOCOL_VERSION 2
+
+/* String IDs */
+#define INTERFACE_STRING_INDEX 0
+
+/* number of tx and rx requests to allocate */
+#define TX_REQ_MAX 4
+#define RX_REQ_MAX 2
+
+struct acc_hid_dev {
+ struct list_head list;
+ struct hid_device *hid;
+ struct acc_dev *dev;
+ /* accessory defined ID */
+ int id;
+ /* HID report descriptor */
+ u8 *report_desc;
+ /* length of HID report descriptor */
+ int report_desc_len;
+ /* number of bytes of report_desc we have received so far */
+ int report_desc_offset;
+};
+
+struct acc_dev {
+ struct usb_function function;
+ struct usb_composite_dev *cdev;
+ spinlock_t lock;
+ struct acc_dev_ref *ref;
+
+ struct usb_ep *ep_in;
+ struct usb_ep *ep_out;
+
+ /* online indicates state of function_set_alt & function_unbind
+ * set to 1 when we connect
+ */
+ int online;
+
+ /* disconnected indicates state of open & release
+ * Set to 1 when we disconnect.
+ * Not cleared until our file is closed.
+ */
+ int disconnected;
+
+ /* strings sent by the host */
+ char manufacturer[ACC_STRING_SIZE];
+ char model[ACC_STRING_SIZE];
+ char description[ACC_STRING_SIZE];
+ char version[ACC_STRING_SIZE];
+ char uri[ACC_STRING_SIZE];
+ char serial[ACC_STRING_SIZE];
+
+ /* for acc_complete_set_string */
+ int string_index;
+
+ /* set to 1 if we have a pending start request */
+ int start_requested;
+
+ int audio_mode;
+
+ /* synchronize access to our device file */
+ atomic_t open_excl;
+
+ struct list_head tx_idle;
+
+ wait_queue_head_t read_wq;
+ wait_queue_head_t write_wq;
+ struct usb_request *rx_req[RX_REQ_MAX];
+ int rx_done;
+
+ /* delayed work for handling ACCESSORY_START */
+ struct delayed_work start_work;
+
+ /* worker for registering and unregistering hid devices */
+ struct work_struct hid_work;
+
+ /* list of active HID devices */
+ struct list_head hid_list;
+
+ /* list of new HID devices to register */
+ struct list_head new_hid_list;
+
+ /* list of dead HID devices to unregister */
+ struct list_head dead_hid_list;
+};
+
+static struct usb_interface_descriptor acc_interface_desc = {
+ .bLength = USB_DT_INTERFACE_SIZE,
+ .bDescriptorType = USB_DT_INTERFACE,
+ .bInterfaceNumber = 0,
+ .bNumEndpoints = 2,
+ .bInterfaceClass = USB_CLASS_VENDOR_SPEC,
+ .bInterfaceSubClass = USB_SUBCLASS_VENDOR_SPEC,
+ .bInterfaceProtocol = 0,
+};
+
+static struct usb_endpoint_descriptor acc_highspeed_in_desc = {
+ .bLength = USB_DT_ENDPOINT_SIZE,
+ .bDescriptorType = USB_DT_ENDPOINT,
+ .bEndpointAddress = USB_DIR_IN,
+ .bmAttributes = USB_ENDPOINT_XFER_BULK,
+ .wMaxPacketSize = __constant_cpu_to_le16(512),
+};
+
+static struct usb_endpoint_descriptor acc_highspeed_out_desc = {
+ .bLength = USB_DT_ENDPOINT_SIZE,
+ .bDescriptorType = USB_DT_ENDPOINT,
+ .bEndpointAddress = USB_DIR_OUT,
+ .bmAttributes = USB_ENDPOINT_XFER_BULK,
+ .wMaxPacketSize = __constant_cpu_to_le16(512),
+};
+
+static struct usb_endpoint_descriptor acc_fullspeed_in_desc = {
+ .bLength = USB_DT_ENDPOINT_SIZE,
+ .bDescriptorType = USB_DT_ENDPOINT,
+ .bEndpointAddress = USB_DIR_IN,
+ .bmAttributes = USB_ENDPOINT_XFER_BULK,
+};
+
+static struct usb_endpoint_descriptor acc_fullspeed_out_desc = {
+ .bLength = USB_DT_ENDPOINT_SIZE,
+ .bDescriptorType = USB_DT_ENDPOINT,
+ .bEndpointAddress = USB_DIR_OUT,
+ .bmAttributes = USB_ENDPOINT_XFER_BULK,
+};
+
+static struct usb_descriptor_header *fs_acc_descs[] = {
+ (struct usb_descriptor_header *) &acc_interface_desc,
+ (struct usb_descriptor_header *) &acc_fullspeed_in_desc,
+ (struct usb_descriptor_header *) &acc_fullspeed_out_desc,
+ NULL,
+};
+
+static struct usb_descriptor_header *hs_acc_descs[] = {
+ (struct usb_descriptor_header *) &acc_interface_desc,
+ (struct usb_descriptor_header *) &acc_highspeed_in_desc,
+ (struct usb_descriptor_header *) &acc_highspeed_out_desc,
+ NULL,
+};
+
+static struct usb_string acc_string_defs[] = {
+ [INTERFACE_STRING_INDEX].s = "Android Accessory Interface",
+ { }, /* end of list */
+};
+
+static struct usb_gadget_strings acc_string_table = {
+ .language = 0x0409, /* en-US */
+ .strings = acc_string_defs,
+};
+
+static struct usb_gadget_strings *acc_strings[] = {
+ &acc_string_table,
+ NULL,
+};
+
+struct acc_dev_ref {
+ struct kref kref;
+ struct acc_dev *acc_dev;
+};
+
+static struct acc_dev_ref _acc_dev_ref = {
+ .kref = KREF_INIT(0),
+};
+
+struct acc_instance {
+ struct usb_function_instance func_inst;
+ const char *name;
+};
+
+static struct acc_dev *get_acc_dev(void)
+{
+ struct acc_dev_ref *ref = &_acc_dev_ref;
+
+ return kref_get_unless_zero(&ref->kref) ? ref->acc_dev : NULL;
+}
+
+static void __put_acc_dev(struct kref *kref)
+{
+ struct acc_dev_ref *ref = container_of(kref, struct acc_dev_ref, kref);
+ struct acc_dev *dev = ref->acc_dev;
+
+ /* Cancel any async work */
+ cancel_delayed_work_sync(&dev->start_work);
+ cancel_work_sync(&dev->hid_work);
+
+ ref->acc_dev = NULL;
+ kfree(dev);
+}
+
+static void put_acc_dev(struct acc_dev *dev)
+{
+ struct acc_dev_ref *ref = dev->ref;
+
+ WARN_ON(ref->acc_dev != dev);
+ kref_put(&ref->kref, __put_acc_dev);
+}
+
+static inline struct acc_dev *func_to_dev(struct usb_function *f)
+{
+ return container_of(f, struct acc_dev, function);
+}
+
+static struct usb_request *acc_request_new(struct usb_ep *ep, int buffer_size)
+{
+ struct usb_request *req = usb_ep_alloc_request(ep, GFP_KERNEL);
+
+ if (!req)
+ return NULL;
+
+ /* now allocate buffers for the requests */
+ req->buf = kmalloc(buffer_size, GFP_KERNEL);
+ if (!req->buf) {
+ usb_ep_free_request(ep, req);
+ return NULL;
+ }
+
+ return req;
+}
+
+static void acc_request_free(struct usb_request *req, struct usb_ep *ep)
+{
+ if (req) {
+ kfree(req->buf);
+ usb_ep_free_request(ep, req);
+ }
+}
+
+/* add a request to the tail of a list */
+static void req_put(struct acc_dev *dev, struct list_head *head,
+ struct usb_request *req)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->lock, flags);
+ list_add_tail(&req->list, head);
+ spin_unlock_irqrestore(&dev->lock, flags);
+}
+
+/* remove a request from the head of a list */
+static struct usb_request *req_get(struct acc_dev *dev, struct list_head *head)
+{
+ unsigned long flags;
+ struct usb_request *req;
+
+ spin_lock_irqsave(&dev->lock, flags);
+ if (list_empty(head)) {
+ req = 0;
+ } else {
+ req = list_first_entry(head, struct usb_request, list);
+ list_del(&req->list);
+ }
+ spin_unlock_irqrestore(&dev->lock, flags);
+ return req;
+}
+
+static void acc_set_disconnected(struct acc_dev *dev)
+{
+ dev->disconnected = 1;
+}
+
+static void acc_complete_in(struct usb_ep *ep, struct usb_request *req)
+{
+ struct acc_dev *dev = get_acc_dev();
+
+ if (!dev)
+ return;
+
+ if (req->status == -ESHUTDOWN) {
+ pr_debug("acc_complete_in set disconnected");
+ acc_set_disconnected(dev);
+ }
+
+ req_put(dev, &dev->tx_idle, req);
+
+ wake_up(&dev->write_wq);
+ put_acc_dev(dev);
+}
+
+static void acc_complete_out(struct usb_ep *ep, struct usb_request *req)
+{
+ struct acc_dev *dev = get_acc_dev();
+
+ if (!dev)
+ return;
+
+ dev->rx_done = 1;
+ if (req->status == -ESHUTDOWN) {
+ pr_debug("acc_complete_out set disconnected");
+ acc_set_disconnected(dev);
+ }
+
+ wake_up(&dev->read_wq);
+ put_acc_dev(dev);
+}
+
+static void acc_complete_set_string(struct usb_ep *ep, struct usb_request *req)
+{
+ struct acc_dev *dev = ep->driver_data;
+ char *string_dest = NULL;
+ int length = req->actual;
+
+ if (req->status != 0) {
+ pr_err("acc_complete_set_string, err %d\n", req->status);
+ return;
+ }
+
+ switch (dev->string_index) {
+ case ACCESSORY_STRING_MANUFACTURER:
+ string_dest = dev->manufacturer;
+ break;
+ case ACCESSORY_STRING_MODEL:
+ string_dest = dev->model;
+ break;
+ case ACCESSORY_STRING_DESCRIPTION:
+ string_dest = dev->description;
+ break;
+ case ACCESSORY_STRING_VERSION:
+ string_dest = dev->version;
+ break;
+ case ACCESSORY_STRING_URI:
+ string_dest = dev->uri;
+ break;
+ case ACCESSORY_STRING_SERIAL:
+ string_dest = dev->serial;
+ break;
+ }
+ if (string_dest) {
+ unsigned long flags;
+
+ if (length >= ACC_STRING_SIZE)
+ length = ACC_STRING_SIZE - 1;
+
+ spin_lock_irqsave(&dev->lock, flags);
+ memcpy(string_dest, req->buf, length);
+ /* ensure zero termination */
+ string_dest[length] = 0;
+ spin_unlock_irqrestore(&dev->lock, flags);
+ } else {
+ pr_err("unknown accessory string index %d\n",
+ dev->string_index);
+ }
+}
+
+static void acc_complete_set_hid_report_desc(struct usb_ep *ep,
+ struct usb_request *req)
+{
+ struct acc_hid_dev *hid = req->context;
+ struct acc_dev *dev = hid->dev;
+ int length = req->actual;
+
+ if (req->status != 0) {
+ pr_err("acc_complete_set_hid_report_desc, err %d\n",
+ req->status);
+ return;
+ }
+
+ memcpy(hid->report_desc + hid->report_desc_offset, req->buf, length);
+ hid->report_desc_offset += length;
+ if (hid->report_desc_offset == hid->report_desc_len) {
+ /* After we have received the entire report descriptor
+ * we schedule work to initialize the HID device
+ */
+ schedule_work(&dev->hid_work);
+ }
+}
+
+static void acc_complete_send_hid_event(struct usb_ep *ep,
+ struct usb_request *req)
+{
+ struct acc_hid_dev *hid = req->context;
+ int length = req->actual;
+
+ if (req->status != 0) {
+ pr_err("acc_complete_send_hid_event, err %d\n", req->status);
+ return;
+ }
+
+ hid_report_raw_event(hid->hid, HID_INPUT_REPORT, req->buf, length, 1);
+}
+
+static int acc_hid_parse(struct hid_device *hid)
+{
+ struct acc_hid_dev *hdev = hid->driver_data;
+
+ hid_parse_report(hid, hdev->report_desc, hdev->report_desc_len);
+ return 0;
+}
+
+static int acc_hid_start(struct hid_device *hid)
+{
+ return 0;
+}
+
+static void acc_hid_stop(struct hid_device *hid)
+{
+}
+
+static int acc_hid_open(struct hid_device *hid)
+{
+ return 0;
+}
+
+static void acc_hid_close(struct hid_device *hid)
+{
+}
+
+static int acc_hid_raw_request(struct hid_device *hid, unsigned char reportnum,
+ __u8 *buf, size_t len, unsigned char rtype, int reqtype)
+{
+ return 0;
+}
+
+static struct hid_ll_driver acc_hid_ll_driver = {
+ .parse = acc_hid_parse,
+ .start = acc_hid_start,
+ .stop = acc_hid_stop,
+ .open = acc_hid_open,
+ .close = acc_hid_close,
+ .raw_request = acc_hid_raw_request,
+};
+
+static struct acc_hid_dev *acc_hid_new(struct acc_dev *dev,
+ int id, int desc_len)
+{
+ struct acc_hid_dev *hdev;
+
+ hdev = kzalloc(sizeof(*hdev), GFP_ATOMIC);
+ if (!hdev)
+ return NULL;
+ hdev->report_desc = kzalloc(desc_len, GFP_ATOMIC);
+ if (!hdev->report_desc) {
+ kfree(hdev);
+ return NULL;
+ }
+ hdev->dev = dev;
+ hdev->id = id;
+ hdev->report_desc_len = desc_len;
+
+ return hdev;
+}
+
+static struct acc_hid_dev *acc_hid_get(struct list_head *list, int id)
+{
+ struct acc_hid_dev *hid;
+
+ list_for_each_entry(hid, list, list) {
+ if (hid->id == id)
+ return hid;
+ }
+ return NULL;
+}
+
+static int acc_register_hid(struct acc_dev *dev, int id, int desc_length)
+{
+ struct acc_hid_dev *hid;
+ unsigned long flags;
+
+ /* report descriptor length must be > 0 */
+ if (desc_length <= 0)
+ return -EINVAL;
+
+ spin_lock_irqsave(&dev->lock, flags);
+ /* replace HID if one already exists with this ID */
+ hid = acc_hid_get(&dev->hid_list, id);
+ if (!hid)
+ hid = acc_hid_get(&dev->new_hid_list, id);
+ if (hid)
+ list_move(&hid->list, &dev->dead_hid_list);
+
+ hid = acc_hid_new(dev, id, desc_length);
+ if (!hid) {
+ spin_unlock_irqrestore(&dev->lock, flags);
+ return -ENOMEM;
+ }
+
+ list_add(&hid->list, &dev->new_hid_list);
+ spin_unlock_irqrestore(&dev->lock, flags);
+
+ /* schedule work to register the HID device */
+ schedule_work(&dev->hid_work);
+ return 0;
+}
+
+static int acc_unregister_hid(struct acc_dev *dev, int id)
+{
+ struct acc_hid_dev *hid;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->lock, flags);
+ hid = acc_hid_get(&dev->hid_list, id);
+ if (!hid)
+ hid = acc_hid_get(&dev->new_hid_list, id);
+ if (!hid) {
+ spin_unlock_irqrestore(&dev->lock, flags);
+ return -EINVAL;
+ }
+
+ list_move(&hid->list, &dev->dead_hid_list);
+ spin_unlock_irqrestore(&dev->lock, flags);
+
+ schedule_work(&dev->hid_work);
+ return 0;
+}
+
+static int create_bulk_endpoints(struct acc_dev *dev,
+ struct usb_endpoint_descriptor *in_desc,
+ struct usb_endpoint_descriptor *out_desc)
+{
+ struct usb_composite_dev *cdev = dev->cdev;
+ struct usb_request *req;
+ struct usb_ep *ep;
+ int i;
+
+ DBG(cdev, "create_bulk_endpoints dev: %p\n", dev);
+
+ ep = usb_ep_autoconfig(cdev->gadget, in_desc);
+ if (!ep) {
+ DBG(cdev, "usb_ep_autoconfig for ep_in failed\n");
+ return -ENODEV;
+ }
+ DBG(cdev, "usb_ep_autoconfig for ep_in got %s\n", ep->name);
+ ep->driver_data = dev; /* claim the endpoint */
+ dev->ep_in = ep;
+
+ ep = usb_ep_autoconfig(cdev->gadget, out_desc);
+ if (!ep) {
+ DBG(cdev, "usb_ep_autoconfig for ep_out failed\n");
+ return -ENODEV;
+ }
+ DBG(cdev, "usb_ep_autoconfig for ep_out got %s\n", ep->name);
+ ep->driver_data = dev; /* claim the endpoint */
+ dev->ep_out = ep;
+
+ /* now allocate requests for our endpoints */
+ for (i = 0; i < TX_REQ_MAX; i++) {
+ req = acc_request_new(dev->ep_in, BULK_BUFFER_SIZE);
+ if (!req)
+ goto fail;
+ req->complete = acc_complete_in;
+ req_put(dev, &dev->tx_idle, req);
+ }
+ for (i = 0; i < RX_REQ_MAX; i++) {
+ req = acc_request_new(dev->ep_out, BULK_BUFFER_SIZE);
+ if (!req)
+ goto fail;
+ req->complete = acc_complete_out;
+ dev->rx_req[i] = req;
+ }
+
+ return 0;
+
+fail:
+ pr_err("acc_bind() could not allocate requests\n");
+ while ((req = req_get(dev, &dev->tx_idle)))
+ acc_request_free(req, dev->ep_in);
+ for (i = 0; i < RX_REQ_MAX; i++)
+ acc_request_free(dev->rx_req[i], dev->ep_out);
+ return -1;
+}
+
+static ssize_t acc_read(struct file *fp, char __user *buf,
+ size_t count, loff_t *pos)
+{
+ struct acc_dev *dev = fp->private_data;
+ struct usb_request *req;
+ ssize_t r = count;
+ ssize_t data_length;
+ unsigned xfer;
+ int ret = 0;
+
+ pr_debug("acc_read(%zu)\n", count);
+
+ if (dev->disconnected) {
+ pr_debug("acc_read disconnected");
+ return -ENODEV;
+ }
+
+ if (count > BULK_BUFFER_SIZE)
+ count = BULK_BUFFER_SIZE;
+
+ /* we will block until we're online */
+ pr_debug("acc_read: waiting for online\n");
+ ret = wait_event_interruptible(dev->read_wq, dev->online);
+ if (ret < 0) {
+ r = ret;
+ goto done;
+ }
+
+ /*
+ * Calculate the data length by considering termination character.
+ * Then compansite the difference of rounding up to
+ * integer multiple of maxpacket size.
+ */
+ data_length = count;
+ data_length += dev->ep_out->maxpacket - 1;
+ data_length -= data_length % dev->ep_out->maxpacket;
+
+ if (dev->rx_done) {
+ // last req cancelled. try to get it.
+ req = dev->rx_req[0];
+ goto copy_data;
+ }
+
+requeue_req:
+ /* queue a request */
+ req = dev->rx_req[0];
+ req->length = data_length;
+ dev->rx_done = 0;
+ ret = usb_ep_queue(dev->ep_out, req, GFP_KERNEL);
+ if (ret < 0) {
+ r = -EIO;
+ goto done;
+ } else {
+ pr_debug("rx %p queue\n", req);
+ }
+
+ /* wait for a request to complete */
+ ret = wait_event_interruptible(dev->read_wq, dev->rx_done);
+ if (ret < 0) {
+ r = ret;
+ ret = usb_ep_dequeue(dev->ep_out, req);
+ if (ret != 0) {
+ // cancel failed. There can be a data already received.
+ // it will be retrieved in the next read.
+ pr_debug("acc_read: cancelling failed %d", ret);
+ }
+ goto done;
+ }
+
+copy_data:
+ dev->rx_done = 0;
+ if (dev->online) {
+ /* If we got a 0-len packet, throw it back and try again. */
+ if (req->actual == 0)
+ goto requeue_req;
+
+ pr_debug("rx %p %u\n", req, req->actual);
+ xfer = (req->actual < count) ? req->actual : count;
+ r = xfer;
+ if (copy_to_user(buf, req->buf, xfer))
+ r = -EFAULT;
+ } else
+ r = -EIO;
+
+done:
+ pr_debug("acc_read returning %zd\n", r);
+ return r;
+}
+
+static ssize_t acc_write(struct file *fp, const char __user *buf,
+ size_t count, loff_t *pos)
+{
+ struct acc_dev *dev = fp->private_data;
+ struct usb_request *req = 0;
+ ssize_t r = count;
+ unsigned xfer;
+ int ret;
+
+ pr_debug("acc_write(%zu)\n", count);
+
+ if (!dev->online || dev->disconnected) {
+ pr_debug("acc_write disconnected or not online");
+ return -ENODEV;
+ }
+
+ while (count > 0) {
+ if (!dev->online) {
+ pr_debug("acc_write dev->error\n");
+ r = -EIO;
+ break;
+ }
+
+ /* get an idle tx request to use */
+ req = 0;
+ ret = wait_event_interruptible(dev->write_wq,
+ ((req = req_get(dev, &dev->tx_idle)) || !dev->online));
+ if (!req) {
+ r = ret;
+ break;
+ }
+
+ if (count > BULK_BUFFER_SIZE) {
+ xfer = BULK_BUFFER_SIZE;
+ /* ZLP, They will be more TX requests so not yet. */
+ req->zero = 0;
+ } else {
+ xfer = count;
+ /* If the data length is a multple of the
+ * maxpacket size then send a zero length packet(ZLP).
+ */
+ req->zero = ((xfer % dev->ep_in->maxpacket) == 0);
+ }
+ if (copy_from_user(req->buf, buf, xfer)) {
+ r = -EFAULT;
+ break;
+ }
+
+ req->length = xfer;
+ ret = usb_ep_queue(dev->ep_in, req, GFP_KERNEL);
+ if (ret < 0) {
+ pr_debug("acc_write: xfer error %d\n", ret);
+ r = -EIO;
+ break;
+ }
+
+ buf += xfer;
+ count -= xfer;
+
+ /* zero this so we don't try to free it on error exit */
+ req = 0;
+ }
+
+ if (req)
+ req_put(dev, &dev->tx_idle, req);
+
+ pr_debug("acc_write returning %zd\n", r);
+ return r;
+}
+
+static long acc_ioctl(struct file *fp, unsigned code, unsigned long value)
+{
+ struct acc_dev *dev = fp->private_data;
+ char *src = NULL;
+ int ret;
+
+ switch (code) {
+ case ACCESSORY_GET_STRING_MANUFACTURER:
+ src = dev->manufacturer;
+ break;
+ case ACCESSORY_GET_STRING_MODEL:
+ src = dev->model;
+ break;
+ case ACCESSORY_GET_STRING_DESCRIPTION:
+ src = dev->description;
+ break;
+ case ACCESSORY_GET_STRING_VERSION:
+ src = dev->version;
+ break;
+ case ACCESSORY_GET_STRING_URI:
+ src = dev->uri;
+ break;
+ case ACCESSORY_GET_STRING_SERIAL:
+ src = dev->serial;
+ break;
+ case ACCESSORY_IS_START_REQUESTED:
+ return dev->start_requested;
+ case ACCESSORY_GET_AUDIO_MODE:
+ return dev->audio_mode;
+ }
+ if (!src)
+ return -EINVAL;
+
+ ret = strlen(src) + 1;
+ if (copy_to_user((void __user *)value, src, ret))
+ ret = -EFAULT;
+ return ret;
+}
+
+static int acc_open(struct inode *ip, struct file *fp)
+{
+ struct acc_dev *dev = get_acc_dev();
+
+ if (!dev)
+ return -ENODEV;
+
+ if (atomic_xchg(&dev->open_excl, 1)) {
+ put_acc_dev(dev);
+ return -EBUSY;
+ }
+
+ dev->disconnected = 0;
+ fp->private_data = dev;
+ return 0;
+}
+
+static int acc_release(struct inode *ip, struct file *fp)
+{
+ struct acc_dev *dev = fp->private_data;
+
+ if (!dev)
+ return -ENOENT;
+
+ /* indicate that we are disconnected
+ * still could be online so don't touch online flag
+ */
+ dev->disconnected = 1;
+
+ fp->private_data = NULL;
+ WARN_ON(!atomic_xchg(&dev->open_excl, 0));
+ put_acc_dev(dev);
+ return 0;
+}
+
+/* file operations for /dev/usb_accessory */
+static const struct file_operations acc_fops = {
+ .owner = THIS_MODULE,
+ .read = acc_read,
+ .write = acc_write,
+ .unlocked_ioctl = acc_ioctl,
+ .open = acc_open,
+ .release = acc_release,
+};
+
+static int acc_hid_probe(struct hid_device *hdev,
+ const struct hid_device_id *id)
+{
+ int ret;
+
+ ret = hid_parse(hdev);
+ if (ret)
+ return ret;
+ return hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+}
+
+static struct miscdevice acc_device = {
+ .minor = MISC_DYNAMIC_MINOR,
+ .name = "usb_accessory",
+ .fops = &acc_fops,
+};
+
+static const struct hid_device_id acc_hid_table[] = {
+ { HID_USB_DEVICE(HID_ANY_ID, HID_ANY_ID) },
+ { }
+};
+
+static struct hid_driver acc_hid_driver = {
+ .name = "USB accessory",
+ .id_table = acc_hid_table,
+ .probe = acc_hid_probe,
+};
+
+static void acc_complete_setup_noop(struct usb_ep *ep, struct usb_request *req)
+{
+ /*
+ * Default no-op function when nothing needs to be done for the
+ * setup request
+ */
+}
+
+int acc_ctrlrequest(struct usb_composite_dev *cdev,
+ const struct usb_ctrlrequest *ctrl)
+{
+ struct acc_dev *dev = get_acc_dev();
+ int value = -EOPNOTSUPP;
+ struct acc_hid_dev *hid;
+ int offset;
+ u8 b_requestType = ctrl->bRequestType;
+ u8 b_request = ctrl->bRequest;
+ u16 w_index = le16_to_cpu(ctrl->wIndex);
+ u16 w_value = le16_to_cpu(ctrl->wValue);
+ u16 w_length = le16_to_cpu(ctrl->wLength);
+ unsigned long flags;
+
+ /*
+ * If instance is not created which is the case in power off charging
+ * mode, dev will be NULL. Hence return error if it is the case.
+ */
+ if (!dev)
+ return -ENODEV;
+
+ if (b_requestType == (USB_DIR_OUT | USB_TYPE_VENDOR)) {
+ if (b_request == ACCESSORY_START) {
+ dev->start_requested = 1;
+ schedule_delayed_work(
+ &dev->start_work, msecs_to_jiffies(10));
+ value = 0;
+ cdev->req->complete = acc_complete_setup_noop;
+ } else if (b_request == ACCESSORY_SEND_STRING) {
+ dev->string_index = w_index;
+ cdev->gadget->ep0->driver_data = dev;
+ cdev->req->complete = acc_complete_set_string;
+ value = w_length;
+ } else if (b_request == ACCESSORY_SET_AUDIO_MODE &&
+ w_index == 0 && w_length == 0) {
+ dev->audio_mode = w_value;
+ cdev->req->complete = acc_complete_setup_noop;
+ value = 0;
+ } else if (b_request == ACCESSORY_REGISTER_HID) {
+ cdev->req->complete = acc_complete_setup_noop;
+ value = acc_register_hid(dev, w_value, w_index);
+ } else if (b_request == ACCESSORY_UNREGISTER_HID) {
+ cdev->req->complete = acc_complete_setup_noop;
+ value = acc_unregister_hid(dev, w_value);
+ } else if (b_request == ACCESSORY_SET_HID_REPORT_DESC) {
+ spin_lock_irqsave(&dev->lock, flags);
+ hid = acc_hid_get(&dev->new_hid_list, w_value);
+ spin_unlock_irqrestore(&dev->lock, flags);
+ if (!hid) {
+ value = -EINVAL;
+ goto err;
+ }
+ offset = w_index;
+ if (offset != hid->report_desc_offset
+ || offset + w_length > hid->report_desc_len) {
+ value = -EINVAL;
+ goto err;
+ }
+ cdev->req->context = hid;
+ cdev->req->complete = acc_complete_set_hid_report_desc;
+ value = w_length;
+ } else if (b_request == ACCESSORY_SEND_HID_EVENT) {
+ spin_lock_irqsave(&dev->lock, flags);
+ hid = acc_hid_get(&dev->hid_list, w_value);
+ spin_unlock_irqrestore(&dev->lock, flags);
+ if (!hid) {
+ value = -EINVAL;
+ goto err;
+ }
+ cdev->req->context = hid;
+ cdev->req->complete = acc_complete_send_hid_event;
+ value = w_length;
+ }
+ } else if (b_requestType == (USB_DIR_IN | USB_TYPE_VENDOR)) {
+ if (b_request == ACCESSORY_GET_PROTOCOL) {
+ *((u16 *)cdev->req->buf) = PROTOCOL_VERSION;
+ value = sizeof(u16);
+ cdev->req->complete = acc_complete_setup_noop;
+ /* clear any string left over from a previous session */
+ memset(dev->manufacturer, 0, sizeof(dev->manufacturer));
+ memset(dev->model, 0, sizeof(dev->model));
+ memset(dev->description, 0, sizeof(dev->description));
+ memset(dev->version, 0, sizeof(dev->version));
+ memset(dev->uri, 0, sizeof(dev->uri));
+ memset(dev->serial, 0, sizeof(dev->serial));
+ dev->start_requested = 0;
+ dev->audio_mode = 0;
+ }
+ }
+
+ if (value >= 0) {
+ cdev->req->zero = 0;
+ cdev->req->length = value;
+ value = usb_ep_queue(cdev->gadget->ep0, cdev->req, GFP_ATOMIC);
+ if (value < 0)
+ ERROR(cdev, "%s setup response queue error\n",
+ __func__);
+ }
+
+err:
+ if (value == -EOPNOTSUPP)
+ VDBG(cdev,
+ "unknown class-specific control req "
+ "%02x.%02x v%04x i%04x l%u\n",
+ ctrl->bRequestType, ctrl->bRequest,
+ w_value, w_index, w_length);
+ put_acc_dev(dev);
+ return value;
+}
+EXPORT_SYMBOL_GPL(acc_ctrlrequest);
+
+static int
+__acc_function_bind(struct usb_configuration *c,
+ struct usb_function *f, bool configfs)
+{
+ struct usb_composite_dev *cdev = c->cdev;
+ struct acc_dev *dev = func_to_dev(f);
+ int id;
+ int ret;
+
+ DBG(cdev, "acc_function_bind dev: %p\n", dev);
+
+ if (configfs) {
+ if (acc_string_defs[INTERFACE_STRING_INDEX].id == 0) {
+ ret = usb_string_id(c->cdev);
+ if (ret < 0)
+ return ret;
+ acc_string_defs[INTERFACE_STRING_INDEX].id = ret;
+ acc_interface_desc.iInterface = ret;
+ }
+ dev->cdev = c->cdev;
+ }
+ ret = hid_register_driver(&acc_hid_driver);
+ if (ret)
+ return ret;
+
+ dev->start_requested = 0;
+
+ /* allocate interface ID(s) */
+ id = usb_interface_id(c, f);
+ if (id < 0)
+ return id;
+ acc_interface_desc.bInterfaceNumber = id;
+
+ /* allocate endpoints */
+ ret = create_bulk_endpoints(dev, &acc_fullspeed_in_desc,
+ &acc_fullspeed_out_desc);
+ if (ret)
+ return ret;
+
+ /* support high speed hardware */
+ if (gadget_is_dualspeed(c->cdev->gadget)) {
+ acc_highspeed_in_desc.bEndpointAddress =
+ acc_fullspeed_in_desc.bEndpointAddress;
+ acc_highspeed_out_desc.bEndpointAddress =
+ acc_fullspeed_out_desc.bEndpointAddress;
+ }
+
+ DBG(cdev, "%s speed %s: IN/%s, OUT/%s\n",
+ gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full",
+ f->name, dev->ep_in->name, dev->ep_out->name);
+ return 0;
+}
+
+static int
+acc_function_bind_configfs(struct usb_configuration *c,
+ struct usb_function *f) {
+ return __acc_function_bind(c, f, true);
+}
+
+static void
+kill_all_hid_devices(struct acc_dev *dev)
+{
+ struct acc_hid_dev *hid;
+ struct list_head *entry, *temp;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->lock, flags);
+ list_for_each_safe(entry, temp, &dev->hid_list) {
+ hid = list_entry(entry, struct acc_hid_dev, list);
+ list_del(&hid->list);
+ list_add(&hid->list, &dev->dead_hid_list);
+ }
+ list_for_each_safe(entry, temp, &dev->new_hid_list) {
+ hid = list_entry(entry, struct acc_hid_dev, list);
+ list_del(&hid->list);
+ list_add(&hid->list, &dev->dead_hid_list);
+ }
+ spin_unlock_irqrestore(&dev->lock, flags);
+
+ schedule_work(&dev->hid_work);
+}
+
+static void
+acc_hid_unbind(struct acc_dev *dev)
+{
+ hid_unregister_driver(&acc_hid_driver);
+ kill_all_hid_devices(dev);
+}
+
+static void
+acc_function_unbind(struct usb_configuration *c, struct usb_function *f)
+{
+ struct acc_dev *dev = func_to_dev(f);
+ struct usb_request *req;
+ int i;
+
+ dev->online = 0; /* clear online flag */
+ wake_up(&dev->read_wq); /* unblock reads on closure */
+ wake_up(&dev->write_wq); /* likewise for writes */
+
+ while ((req = req_get(dev, &dev->tx_idle)))
+ acc_request_free(req, dev->ep_in);
+ for (i = 0; i < RX_REQ_MAX; i++)
+ acc_request_free(dev->rx_req[i], dev->ep_out);
+
+ acc_hid_unbind(dev);
+}
+
+static void acc_start_work(struct work_struct *data)
+{
+ char *envp[2] = { "ACCESSORY=START", NULL };
+
+ kobject_uevent_env(&acc_device.this_device->kobj, KOBJ_CHANGE, envp);
+}
+
+static int acc_hid_init(struct acc_hid_dev *hdev)
+{
+ struct hid_device *hid;
+ int ret;
+
+ hid = hid_allocate_device();
+ if (IS_ERR(hid))
+ return PTR_ERR(hid);
+
+ hid->ll_driver = &acc_hid_ll_driver;
+ hid->dev.parent = acc_device.this_device;
+
+ hid->bus = BUS_USB;
+ hid->vendor = HID_ANY_ID;
+ hid->product = HID_ANY_ID;
+ hid->driver_data = hdev;
+ ret = hid_add_device(hid);
+ if (ret) {
+ pr_err("can't add hid device: %d\n", ret);
+ hid_destroy_device(hid);
+ return ret;
+ }
+
+ hdev->hid = hid;
+ return 0;
+}
+
+static void acc_hid_delete(struct acc_hid_dev *hid)
+{
+ kfree(hid->report_desc);
+ kfree(hid);
+}
+
+static void acc_hid_work(struct work_struct *data)
+{
+ struct acc_dev *dev = get_acc_dev();
+ struct list_head *entry, *temp;
+ struct acc_hid_dev *hid;
+ struct list_head new_list, dead_list;
+ unsigned long flags;
+
+ if (!dev)
+ return;
+
+ INIT_LIST_HEAD(&new_list);
+
+ spin_lock_irqsave(&dev->lock, flags);
+
+ /* copy hids that are ready for initialization to new_list */
+ list_for_each_safe(entry, temp, &dev->new_hid_list) {
+ hid = list_entry(entry, struct acc_hid_dev, list);
+ if (hid->report_desc_offset == hid->report_desc_len)
+ list_move(&hid->list, &new_list);
+ }
+
+ if (list_empty(&dev->dead_hid_list)) {
+ INIT_LIST_HEAD(&dead_list);
+ } else {
+ /* move all of dev->dead_hid_list to dead_list */
+ dead_list.prev = dev->dead_hid_list.prev;
+ dead_list.next = dev->dead_hid_list.next;
+ dead_list.next->prev = &dead_list;
+ dead_list.prev->next = &dead_list;
+ INIT_LIST_HEAD(&dev->dead_hid_list);
+ }
+
+ spin_unlock_irqrestore(&dev->lock, flags);
+
+ /* register new HID devices */
+ list_for_each_safe(entry, temp, &new_list) {
+ hid = list_entry(entry, struct acc_hid_dev, list);
+ if (acc_hid_init(hid)) {
+ pr_err("can't add HID device %p\n", hid);
+ acc_hid_delete(hid);
+ } else {
+ spin_lock_irqsave(&dev->lock, flags);
+ list_move(&hid->list, &dev->hid_list);
+ spin_unlock_irqrestore(&dev->lock, flags);
+ }
+ }
+
+ /* remove dead HID devices */
+ list_for_each_safe(entry, temp, &dead_list) {
+ hid = list_entry(entry, struct acc_hid_dev, list);
+ list_del(&hid->list);
+ if (hid->hid)
+ hid_destroy_device(hid->hid);
+ acc_hid_delete(hid);
+ }
+
+ put_acc_dev(dev);
+}
+
+static int acc_function_set_alt(struct usb_function *f,
+ unsigned intf, unsigned alt)
+{
+ struct acc_dev *dev = func_to_dev(f);
+ struct usb_composite_dev *cdev = f->config->cdev;
+ int ret;
+
+ DBG(cdev, "acc_function_set_alt intf: %d alt: %d\n", intf, alt);
+
+ ret = config_ep_by_speed(cdev->gadget, f, dev->ep_in);
+ if (ret)
+ return ret;
+
+ ret = usb_ep_enable(dev->ep_in);
+ if (ret)
+ return ret;
+
+ ret = config_ep_by_speed(cdev->gadget, f, dev->ep_out);
+ if (ret)
+ return ret;
+
+ ret = usb_ep_enable(dev->ep_out);
+ if (ret) {
+ usb_ep_disable(dev->ep_in);
+ return ret;
+ }
+
+ dev->online = 1;
+ dev->disconnected = 0; /* if online then not disconnected */
+
+ /* readers may be blocked waiting for us to go online */
+ wake_up(&dev->read_wq);
+ return 0;
+}
+
+static void acc_function_disable(struct usb_function *f)
+{
+ struct acc_dev *dev = func_to_dev(f);
+ struct usb_composite_dev *cdev = dev->cdev;
+
+ DBG(cdev, "acc_function_disable\n");
+ acc_set_disconnected(dev); /* this now only sets disconnected */
+ dev->online = 0; /* so now need to clear online flag here too */
+ usb_ep_disable(dev->ep_in);
+ usb_ep_disable(dev->ep_out);
+
+ /* readers may be blocked waiting for us to go online */
+ wake_up(&dev->read_wq);
+
+ VDBG(cdev, "%s disabled\n", dev->function.name);
+}
+
+static int acc_setup(void)
+{
+ struct acc_dev_ref *ref = &_acc_dev_ref;
+ struct acc_dev *dev;
+ int ret;
+
+ if (kref_read(&ref->kref))
+ return -EBUSY;
+
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (!dev)
+ return -ENOMEM;
+
+ spin_lock_init(&dev->lock);
+ init_waitqueue_head(&dev->read_wq);
+ init_waitqueue_head(&dev->write_wq);
+ atomic_set(&dev->open_excl, 0);
+ INIT_LIST_HEAD(&dev->tx_idle);
+ INIT_LIST_HEAD(&dev->hid_list);
+ INIT_LIST_HEAD(&dev->new_hid_list);
+ INIT_LIST_HEAD(&dev->dead_hid_list);
+ INIT_DELAYED_WORK(&dev->start_work, acc_start_work);
+ INIT_WORK(&dev->hid_work, acc_hid_work);
+
+ dev->ref = ref;
+ if (cmpxchg_relaxed(&ref->acc_dev, NULL, dev)) {
+ ret = -EBUSY;
+ goto err_free_dev;
+ }
+
+ ret = misc_register(&acc_device);
+ if (ret)
+ goto err_zap_ptr;
+
+ kref_init(&ref->kref);
+ return 0;
+
+err_zap_ptr:
+ ref->acc_dev = NULL;
+err_free_dev:
+ kfree(dev);
+ pr_err("USB accessory gadget driver failed to initialize\n");
+ return ret;
+}
+
+void acc_disconnect(void)
+{
+ struct acc_dev *dev = get_acc_dev();
+
+ if (!dev)
+ return;
+
+ /* unregister all HID devices if USB is disconnected */
+ kill_all_hid_devices(dev);
+ put_acc_dev(dev);
+}
+EXPORT_SYMBOL_GPL(acc_disconnect);
+
+static void acc_cleanup(void)
+{
+ struct acc_dev *dev = get_acc_dev();
+
+ misc_deregister(&acc_device);
+ put_acc_dev(dev);
+ put_acc_dev(dev); /* Pairs with kref_init() in acc_setup() */
+}
+static struct acc_instance *to_acc_instance(struct config_item *item)
+{
+ return container_of(to_config_group(item), struct acc_instance,
+ func_inst.group);
+}
+
+static void acc_attr_release(struct config_item *item)
+{
+ struct acc_instance *fi_acc = to_acc_instance(item);
+
+ usb_put_function_instance(&fi_acc->func_inst);
+}
+
+static struct configfs_item_operations acc_item_ops = {
+ .release = acc_attr_release,
+};
+
+static struct config_item_type acc_func_type = {
+ .ct_item_ops = &acc_item_ops,
+ .ct_owner = THIS_MODULE,
+};
+
+static struct acc_instance *to_fi_acc(struct usb_function_instance *fi)
+{
+ return container_of(fi, struct acc_instance, func_inst);
+}
+
+static int acc_set_inst_name(struct usb_function_instance *fi, const char *name)
+{
+ struct acc_instance *fi_acc;
+ char *ptr;
+ int name_len;
+
+ name_len = strlen(name) + 1;
+ if (name_len > MAX_INST_NAME_LEN)
+ return -ENAMETOOLONG;
+
+ ptr = kstrndup(name, name_len, GFP_KERNEL);
+ if (!ptr)
+ return -ENOMEM;
+
+ fi_acc = to_fi_acc(fi);
+ fi_acc->name = ptr;
+ return 0;
+}
+
+static void acc_free_inst(struct usb_function_instance *fi)
+{
+ struct acc_instance *fi_acc;
+
+ fi_acc = to_fi_acc(fi);
+ kfree(fi_acc->name);
+ acc_cleanup();
+}
+
+static struct usb_function_instance *acc_alloc_inst(void)
+{
+ struct acc_instance *fi_acc;
+ int err;
+
+ fi_acc = kzalloc(sizeof(*fi_acc), GFP_KERNEL);
+ if (!fi_acc)
+ return ERR_PTR(-ENOMEM);
+ fi_acc->func_inst.set_inst_name = acc_set_inst_name;
+ fi_acc->func_inst.free_func_inst = acc_free_inst;
+
+ err = acc_setup();
+ if (err) {
+ kfree(fi_acc);
+ return ERR_PTR(err);
+ }
+
+ config_group_init_type_name(&fi_acc->func_inst.group,
+ "", &acc_func_type);
+ return &fi_acc->func_inst;
+}
+
+static void acc_free(struct usb_function *f)
+{
+ struct acc_dev *dev = func_to_dev(f);
+
+ put_acc_dev(dev);
+}
+
+int acc_ctrlrequest_configfs(struct usb_function *f,
+ const struct usb_ctrlrequest *ctrl) {
+ if (f->config != NULL && f->config->cdev != NULL)
+ return acc_ctrlrequest(f->config->cdev, ctrl);
+ else
+ return -1;
+}
+
+static struct usb_function *acc_alloc(struct usb_function_instance *fi)
+{
+ struct acc_dev *dev = get_acc_dev();
+
+ dev->function.name = "accessory";
+ dev->function.strings = acc_strings,
+ dev->function.fs_descriptors = fs_acc_descs;
+ dev->function.hs_descriptors = hs_acc_descs;
+ dev->function.bind = acc_function_bind_configfs;
+ dev->function.unbind = acc_function_unbind;
+ dev->function.set_alt = acc_function_set_alt;
+ dev->function.disable = acc_function_disable;
+ dev->function.free_func = acc_free;
+ dev->function.setup = acc_ctrlrequest_configfs;
+
+ return &dev->function;
+}
+DECLARE_USB_FUNCTION_INIT(accessory, acc_alloc_inst, acc_alloc);
+MODULE_LICENSE("GPL");
diff --git a/drivers/usb/gadget/function/f_audio_source.c b/drivers/usb/gadget/function/f_audio_source.c
new file mode 100644
index 0000000..8124af3
--- /dev/null
+++ b/drivers/usb/gadget/function/f_audio_source.c
@@ -0,0 +1,1071 @@
+/*
+ * Gadget Function Driver for USB audio source device
+ *
+ * Copyright (C) 2012 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/device.h>
+#include <linux/usb/audio.h>
+#include <linux/wait.h>
+#include <linux/pm_qos.h>
+#include <sound/core.h>
+#include <sound/initval.h>
+#include <sound/pcm.h>
+
+#include <linux/usb.h>
+#include <linux/usb_usual.h>
+#include <linux/usb/ch9.h>
+#include <linux/configfs.h>
+#include <linux/usb/composite.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#define SAMPLE_RATE 44100
+#define FRAMES_PER_MSEC (SAMPLE_RATE / 1000)
+
+#define IN_EP_MAX_PACKET_SIZE 256
+
+/* Number of requests to allocate */
+#define IN_EP_REQ_COUNT 4
+
+#define AUDIO_AC_INTERFACE 0
+#define AUDIO_AS_INTERFACE 1
+#define AUDIO_NUM_INTERFACES 2
+#define MAX_INST_NAME_LEN 40
+
+/* B.3.1 Standard AC Interface Descriptor */
+static struct usb_interface_descriptor ac_interface_desc = {
+ .bLength = USB_DT_INTERFACE_SIZE,
+ .bDescriptorType = USB_DT_INTERFACE,
+ .bNumEndpoints = 0,
+ .bInterfaceClass = USB_CLASS_AUDIO,
+ .bInterfaceSubClass = USB_SUBCLASS_AUDIOCONTROL,
+};
+
+DECLARE_UAC_AC_HEADER_DESCRIPTOR(2);
+
+#define UAC_DT_AC_HEADER_LENGTH UAC_DT_AC_HEADER_SIZE(AUDIO_NUM_INTERFACES)
+/* 1 input terminal, 1 output terminal and 1 feature unit */
+#define UAC_DT_TOTAL_LENGTH (UAC_DT_AC_HEADER_LENGTH \
+ + UAC_DT_INPUT_TERMINAL_SIZE + UAC_DT_OUTPUT_TERMINAL_SIZE \
+ + UAC_DT_FEATURE_UNIT_SIZE(0))
+/* B.3.2 Class-Specific AC Interface Descriptor */
+static struct uac1_ac_header_descriptor_2 ac_header_desc = {
+ .bLength = UAC_DT_AC_HEADER_LENGTH,
+ .bDescriptorType = USB_DT_CS_INTERFACE,
+ .bDescriptorSubtype = UAC_HEADER,
+ .bcdADC = __constant_cpu_to_le16(0x0100),
+ .wTotalLength = __constant_cpu_to_le16(UAC_DT_TOTAL_LENGTH),
+ .bInCollection = AUDIO_NUM_INTERFACES,
+ .baInterfaceNr = {
+ [0] = AUDIO_AC_INTERFACE,
+ [1] = AUDIO_AS_INTERFACE,
+ }
+};
+
+#define INPUT_TERMINAL_ID 1
+static struct uac_input_terminal_descriptor input_terminal_desc = {
+ .bLength = UAC_DT_INPUT_TERMINAL_SIZE,
+ .bDescriptorType = USB_DT_CS_INTERFACE,
+ .bDescriptorSubtype = UAC_INPUT_TERMINAL,
+ .bTerminalID = INPUT_TERMINAL_ID,
+ .wTerminalType = UAC_INPUT_TERMINAL_MICROPHONE,
+ .bAssocTerminal = 0,
+ .wChannelConfig = 0x3,
+};
+
+DECLARE_UAC_FEATURE_UNIT_DESCRIPTOR(0);
+
+#define FEATURE_UNIT_ID 2
+static struct uac_feature_unit_descriptor_0 feature_unit_desc = {
+ .bLength = UAC_DT_FEATURE_UNIT_SIZE(0),
+ .bDescriptorType = USB_DT_CS_INTERFACE,
+ .bDescriptorSubtype = UAC_FEATURE_UNIT,
+ .bUnitID = FEATURE_UNIT_ID,
+ .bSourceID = INPUT_TERMINAL_ID,
+ .bControlSize = 2,
+};
+
+#define OUTPUT_TERMINAL_ID 3
+static struct uac1_output_terminal_descriptor output_terminal_desc = {
+ .bLength = UAC_DT_OUTPUT_TERMINAL_SIZE,
+ .bDescriptorType = USB_DT_CS_INTERFACE,
+ .bDescriptorSubtype = UAC_OUTPUT_TERMINAL,
+ .bTerminalID = OUTPUT_TERMINAL_ID,
+ .wTerminalType = UAC_TERMINAL_STREAMING,
+ .bAssocTerminal = FEATURE_UNIT_ID,
+ .bSourceID = FEATURE_UNIT_ID,
+};
+
+/* B.4.1 Standard AS Interface Descriptor */
+static struct usb_interface_descriptor as_interface_alt_0_desc = {
+ .bLength = USB_DT_INTERFACE_SIZE,
+ .bDescriptorType = USB_DT_INTERFACE,
+ .bAlternateSetting = 0,
+ .bNumEndpoints = 0,
+ .bInterfaceClass = USB_CLASS_AUDIO,
+ .bInterfaceSubClass = USB_SUBCLASS_AUDIOSTREAMING,
+};
+
+static struct usb_interface_descriptor as_interface_alt_1_desc = {
+ .bLength = USB_DT_INTERFACE_SIZE,
+ .bDescriptorType = USB_DT_INTERFACE,
+ .bAlternateSetting = 1,
+ .bNumEndpoints = 1,
+ .bInterfaceClass = USB_CLASS_AUDIO,
+ .bInterfaceSubClass = USB_SUBCLASS_AUDIOSTREAMING,
+};
+
+/* B.4.2 Class-Specific AS Interface Descriptor */
+static struct uac1_as_header_descriptor as_header_desc = {
+ .bLength = UAC_DT_AS_HEADER_SIZE,
+ .bDescriptorType = USB_DT_CS_INTERFACE,
+ .bDescriptorSubtype = UAC_AS_GENERAL,
+ .bTerminalLink = INPUT_TERMINAL_ID,
+ .bDelay = 1,
+ .wFormatTag = UAC_FORMAT_TYPE_I_PCM,
+};
+
+DECLARE_UAC_FORMAT_TYPE_I_DISCRETE_DESC(1);
+
+static struct uac_format_type_i_discrete_descriptor_1 as_type_i_desc = {
+ .bLength = UAC_FORMAT_TYPE_I_DISCRETE_DESC_SIZE(1),
+ .bDescriptorType = USB_DT_CS_INTERFACE,
+ .bDescriptorSubtype = UAC_FORMAT_TYPE,
+ .bFormatType = UAC_FORMAT_TYPE_I,
+ .bSubframeSize = 2,
+ .bBitResolution = 16,
+ .bSamFreqType = 1,
+};
+
+/* Standard ISO IN Endpoint Descriptor for highspeed */
+static struct usb_endpoint_descriptor hs_as_in_ep_desc = {
+ .bLength = USB_DT_ENDPOINT_AUDIO_SIZE,
+ .bDescriptorType = USB_DT_ENDPOINT,
+ .bEndpointAddress = USB_DIR_IN,
+ .bmAttributes = USB_ENDPOINT_SYNC_SYNC
+ | USB_ENDPOINT_XFER_ISOC,
+ .wMaxPacketSize = __constant_cpu_to_le16(IN_EP_MAX_PACKET_SIZE),
+ .bInterval = 4, /* poll 1 per millisecond */
+};
+
+/* Standard ISO IN Endpoint Descriptor for highspeed */
+static struct usb_endpoint_descriptor fs_as_in_ep_desc = {
+ .bLength = USB_DT_ENDPOINT_AUDIO_SIZE,
+ .bDescriptorType = USB_DT_ENDPOINT,
+ .bEndpointAddress = USB_DIR_IN,
+ .bmAttributes = USB_ENDPOINT_SYNC_SYNC
+ | USB_ENDPOINT_XFER_ISOC,
+ .wMaxPacketSize = __constant_cpu_to_le16(IN_EP_MAX_PACKET_SIZE),
+ .bInterval = 1, /* poll 1 per millisecond */
+};
+
+/* Class-specific AS ISO OUT Endpoint Descriptor */
+static struct uac_iso_endpoint_descriptor as_iso_in_desc = {
+ .bLength = UAC_ISO_ENDPOINT_DESC_SIZE,
+ .bDescriptorType = USB_DT_CS_ENDPOINT,
+ .bDescriptorSubtype = UAC_EP_GENERAL,
+ .bmAttributes = 1,
+ .bLockDelayUnits = 1,
+ .wLockDelay = __constant_cpu_to_le16(1),
+};
+
+static struct usb_descriptor_header *hs_audio_desc[] = {
+ (struct usb_descriptor_header *)&ac_interface_desc,
+ (struct usb_descriptor_header *)&ac_header_desc,
+
+ (struct usb_descriptor_header *)&input_terminal_desc,
+ (struct usb_descriptor_header *)&output_terminal_desc,
+ (struct usb_descriptor_header *)&feature_unit_desc,
+
+ (struct usb_descriptor_header *)&as_interface_alt_0_desc,
+ (struct usb_descriptor_header *)&as_interface_alt_1_desc,
+ (struct usb_descriptor_header *)&as_header_desc,
+
+ (struct usb_descriptor_header *)&as_type_i_desc,
+
+ (struct usb_descriptor_header *)&hs_as_in_ep_desc,
+ (struct usb_descriptor_header *)&as_iso_in_desc,
+ NULL,
+};
+
+static struct usb_descriptor_header *fs_audio_desc[] = {
+ (struct usb_descriptor_header *)&ac_interface_desc,
+ (struct usb_descriptor_header *)&ac_header_desc,
+
+ (struct usb_descriptor_header *)&input_terminal_desc,
+ (struct usb_descriptor_header *)&output_terminal_desc,
+ (struct usb_descriptor_header *)&feature_unit_desc,
+
+ (struct usb_descriptor_header *)&as_interface_alt_0_desc,
+ (struct usb_descriptor_header *)&as_interface_alt_1_desc,
+ (struct usb_descriptor_header *)&as_header_desc,
+
+ (struct usb_descriptor_header *)&as_type_i_desc,
+
+ (struct usb_descriptor_header *)&fs_as_in_ep_desc,
+ (struct usb_descriptor_header *)&as_iso_in_desc,
+ NULL,
+};
+
+static struct snd_pcm_hardware audio_hw_info = {
+ .info = SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_BATCH |
+ SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_BLOCK_TRANSFER,
+
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ .channels_min = 2,
+ .channels_max = 2,
+ .rate_min = SAMPLE_RATE,
+ .rate_max = SAMPLE_RATE,
+
+ .buffer_bytes_max = 1024 * 1024,
+ .period_bytes_min = 64,
+ .period_bytes_max = 512 * 1024,
+ .periods_min = 2,
+ .periods_max = 1024,
+};
+
+/*-------------------------------------------------------------------------*/
+
+struct audio_source_config {
+ int card;
+ int device;
+};
+
+struct audio_dev {
+ struct usb_function func;
+ struct snd_card *card;
+ struct snd_pcm *pcm;
+ struct snd_pcm_substream *substream;
+
+ struct list_head idle_reqs;
+ struct usb_ep *in_ep;
+
+ spinlock_t lock;
+
+ /* beginning, end and current position in our buffer */
+ void *buffer_start;
+ void *buffer_end;
+ void *buffer_pos;
+
+ /* byte size of a "period" */
+ unsigned int period;
+ /* bytes sent since last call to snd_pcm_period_elapsed */
+ unsigned int period_offset;
+ /* time we started playing */
+ ktime_t start_time;
+ /* number of frames sent since start_time */
+ s64 frames_sent;
+ struct audio_source_config *config;
+ /* for creating and issuing QoS requests */
+ struct pm_qos_request pm_qos;
+};
+
+static inline struct audio_dev *func_to_audio(struct usb_function *f)
+{
+ return container_of(f, struct audio_dev, func);
+}
+
+/*-------------------------------------------------------------------------*/
+
+struct audio_source_instance {
+ struct usb_function_instance func_inst;
+ const char *name;
+ struct audio_source_config *config;
+ struct device *audio_device;
+};
+
+static void audio_source_attr_release(struct config_item *item);
+
+static struct configfs_item_operations audio_source_item_ops = {
+ .release = audio_source_attr_release,
+};
+
+static struct config_item_type audio_source_func_type = {
+ .ct_item_ops = &audio_source_item_ops,
+ .ct_owner = THIS_MODULE,
+};
+
+static ssize_t audio_source_pcm_show(struct device *dev,
+ struct device_attribute *attr, char *buf);
+
+static DEVICE_ATTR(pcm, S_IRUGO, audio_source_pcm_show, NULL);
+
+static struct device_attribute *audio_source_function_attributes[] = {
+ &dev_attr_pcm,
+ NULL
+};
+
+/*--------------------------------------------------------------------------*/
+
+static struct usb_request *audio_request_new(struct usb_ep *ep, int buffer_size)
+{
+ struct usb_request *req = usb_ep_alloc_request(ep, GFP_KERNEL);
+
+ if (!req)
+ return NULL;
+
+ req->buf = kmalloc(buffer_size, GFP_KERNEL);
+ if (!req->buf) {
+ usb_ep_free_request(ep, req);
+ return NULL;
+ }
+ req->length = buffer_size;
+ return req;
+}
+
+static void audio_request_free(struct usb_request *req, struct usb_ep *ep)
+{
+ if (req) {
+ kfree(req->buf);
+ usb_ep_free_request(ep, req);
+ }
+}
+
+static void audio_req_put(struct audio_dev *audio, struct usb_request *req)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&audio->lock, flags);
+ list_add_tail(&req->list, &audio->idle_reqs);
+ spin_unlock_irqrestore(&audio->lock, flags);
+}
+
+static struct usb_request *audio_req_get(struct audio_dev *audio)
+{
+ unsigned long flags;
+ struct usb_request *req;
+
+ spin_lock_irqsave(&audio->lock, flags);
+ if (list_empty(&audio->idle_reqs)) {
+ req = 0;
+ } else {
+ req = list_first_entry(&audio->idle_reqs, struct usb_request,
+ list);
+ list_del(&req->list);
+ }
+ spin_unlock_irqrestore(&audio->lock, flags);
+ return req;
+}
+
+/* send the appropriate number of packets to match our bitrate */
+static void audio_send(struct audio_dev *audio)
+{
+ struct snd_pcm_runtime *runtime;
+ struct usb_request *req;
+ int length, length1, length2, ret;
+ s64 msecs;
+ s64 frames;
+ ktime_t now;
+
+ /* audio->substream will be null if we have been closed */
+ if (!audio->substream)
+ return;
+ /* audio->buffer_pos will be null if we have been stopped */
+ if (!audio->buffer_pos)
+ return;
+
+ runtime = audio->substream->runtime;
+
+ /* compute number of frames to send */
+ now = ktime_get();
+ msecs = div_s64((ktime_to_ns(now) - ktime_to_ns(audio->start_time)),
+ 1000000);
+ frames = div_s64((msecs * SAMPLE_RATE), 1000);
+
+ /* Readjust our frames_sent if we fall too far behind.
+ * If we get too far behind it is better to drop some frames than
+ * to keep sending data too fast in an attempt to catch up.
+ */
+ if (frames - audio->frames_sent > 10 * FRAMES_PER_MSEC)
+ audio->frames_sent = frames - FRAMES_PER_MSEC;
+
+ frames -= audio->frames_sent;
+
+ /* We need to send something to keep the pipeline going */
+ if (frames <= 0)
+ frames = FRAMES_PER_MSEC;
+
+ while (frames > 0) {
+ req = audio_req_get(audio);
+ if (!req)
+ break;
+
+ length = frames_to_bytes(runtime, frames);
+ if (length > IN_EP_MAX_PACKET_SIZE)
+ length = IN_EP_MAX_PACKET_SIZE;
+
+ if (audio->buffer_pos + length > audio->buffer_end)
+ length1 = audio->buffer_end - audio->buffer_pos;
+ else
+ length1 = length;
+ memcpy(req->buf, audio->buffer_pos, length1);
+ if (length1 < length) {
+ /* Wrap around and copy remaining length
+ * at beginning of buffer.
+ */
+ length2 = length - length1;
+ memcpy(req->buf + length1, audio->buffer_start,
+ length2);
+ audio->buffer_pos = audio->buffer_start + length2;
+ } else {
+ audio->buffer_pos += length1;
+ if (audio->buffer_pos >= audio->buffer_end)
+ audio->buffer_pos = audio->buffer_start;
+ }
+
+ req->length = length;
+ ret = usb_ep_queue(audio->in_ep, req, GFP_ATOMIC);
+ if (ret < 0) {
+ pr_err("usb_ep_queue failed ret: %d\n", ret);
+ audio_req_put(audio, req);
+ break;
+ }
+
+ frames -= bytes_to_frames(runtime, length);
+ audio->frames_sent += bytes_to_frames(runtime, length);
+ }
+}
+
+static void audio_control_complete(struct usb_ep *ep, struct usb_request *req)
+{
+ /* nothing to do here */
+}
+
+static void audio_data_complete(struct usb_ep *ep, struct usb_request *req)
+{
+ struct audio_dev *audio = req->context;
+
+ pr_debug("audio_data_complete req->status %d req->actual %d\n",
+ req->status, req->actual);
+
+ audio_req_put(audio, req);
+
+ if (!audio->buffer_start || req->status)
+ return;
+
+ audio->period_offset += req->actual;
+ if (audio->period_offset >= audio->period) {
+ snd_pcm_period_elapsed(audio->substream);
+ audio->period_offset = 0;
+ }
+ audio_send(audio);
+}
+
+static int audio_set_endpoint_req(struct usb_function *f,
+ const struct usb_ctrlrequest *ctrl)
+{
+ int value = -EOPNOTSUPP;
+ u16 ep = le16_to_cpu(ctrl->wIndex);
+ u16 len = le16_to_cpu(ctrl->wLength);
+ u16 w_value = le16_to_cpu(ctrl->wValue);
+
+ pr_debug("bRequest 0x%x, w_value 0x%04x, len %d, endpoint %d\n",
+ ctrl->bRequest, w_value, len, ep);
+
+ switch (ctrl->bRequest) {
+ case UAC_SET_CUR:
+ case UAC_SET_MIN:
+ case UAC_SET_MAX:
+ case UAC_SET_RES:
+ value = len;
+ break;
+ default:
+ break;
+ }
+
+ return value;
+}
+
+static int audio_get_endpoint_req(struct usb_function *f,
+ const struct usb_ctrlrequest *ctrl)
+{
+ struct usb_composite_dev *cdev = f->config->cdev;
+ int value = -EOPNOTSUPP;
+ u8 ep = ((le16_to_cpu(ctrl->wIndex) >> 8) & 0xFF);
+ u16 len = le16_to_cpu(ctrl->wLength);
+ u16 w_value = le16_to_cpu(ctrl->wValue);
+ u8 *buf = cdev->req->buf;
+
+ pr_debug("bRequest 0x%x, w_value 0x%04x, len %d, endpoint %d\n",
+ ctrl->bRequest, w_value, len, ep);
+
+ if (w_value == UAC_EP_CS_ATTR_SAMPLE_RATE << 8) {
+ switch (ctrl->bRequest) {
+ case UAC_GET_CUR:
+ case UAC_GET_MIN:
+ case UAC_GET_MAX:
+ case UAC_GET_RES:
+ /* return our sample rate */
+ buf[0] = (u8)SAMPLE_RATE;
+ buf[1] = (u8)(SAMPLE_RATE >> 8);
+ buf[2] = (u8)(SAMPLE_RATE >> 16);
+ value = 3;
+ break;
+ default:
+ break;
+ }
+ }
+
+ return value;
+}
+
+static int
+audio_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl)
+{
+ struct usb_composite_dev *cdev = f->config->cdev;
+ struct usb_request *req = cdev->req;
+ int value = -EOPNOTSUPP;
+ u16 w_index = le16_to_cpu(ctrl->wIndex);
+ u16 w_value = le16_to_cpu(ctrl->wValue);
+ u16 w_length = le16_to_cpu(ctrl->wLength);
+
+ /* composite driver infrastructure handles everything; interface
+ * activation uses set_alt().
+ */
+ switch (ctrl->bRequestType) {
+ case USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_ENDPOINT:
+ value = audio_set_endpoint_req(f, ctrl);
+ break;
+
+ case USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_ENDPOINT:
+ value = audio_get_endpoint_req(f, ctrl);
+ break;
+ }
+
+ /* respond with data transfer or status phase? */
+ if (value >= 0) {
+ pr_debug("audio req%02x.%02x v%04x i%04x l%d\n",
+ ctrl->bRequestType, ctrl->bRequest,
+ w_value, w_index, w_length);
+ req->zero = 0;
+ req->length = value;
+ req->complete = audio_control_complete;
+ value = usb_ep_queue(cdev->gadget->ep0, req, GFP_ATOMIC);
+ if (value < 0)
+ pr_err("audio response on err %d\n", value);
+ }
+
+ /* device either stalls (value < 0) or reports success */
+ return value;
+}
+
+static int audio_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
+{
+ struct audio_dev *audio = func_to_audio(f);
+ struct usb_composite_dev *cdev = f->config->cdev;
+ int ret;
+
+ pr_debug("audio_set_alt intf %d, alt %d\n", intf, alt);
+
+ ret = config_ep_by_speed(cdev->gadget, f, audio->in_ep);
+ if (ret)
+ return ret;
+
+ usb_ep_enable(audio->in_ep);
+ return 0;
+}
+
+static void audio_disable(struct usb_function *f)
+{
+ struct audio_dev *audio = func_to_audio(f);
+
+ pr_debug("audio_disable\n");
+ usb_ep_disable(audio->in_ep);
+}
+
+static void audio_free_func(struct usb_function *f)
+{
+ /* no-op */
+}
+
+/*-------------------------------------------------------------------------*/
+
+static void audio_build_desc(struct audio_dev *audio)
+{
+ u8 *sam_freq;
+ int rate;
+
+ /* Set channel numbers */
+ input_terminal_desc.bNrChannels = 2;
+ as_type_i_desc.bNrChannels = 2;
+
+ /* Set sample rates */
+ rate = SAMPLE_RATE;
+ sam_freq = as_type_i_desc.tSamFreq[0];
+ memcpy(sam_freq, &rate, 3);
+}
+
+
+static int snd_card_setup(struct usb_configuration *c,
+ struct audio_source_config *config);
+static struct audio_source_instance *to_fi_audio_source(
+ const struct usb_function_instance *fi);
+
+
+/* audio function driver setup/binding */
+static int
+audio_bind(struct usb_configuration *c, struct usb_function *f)
+{
+ struct usb_composite_dev *cdev = c->cdev;
+ struct audio_dev *audio = func_to_audio(f);
+ int status;
+ struct usb_ep *ep;
+ struct usb_request *req;
+ int i;
+ int err;
+
+ if (IS_ENABLED(CONFIG_USB_CONFIGFS)) {
+ struct audio_source_instance *fi_audio =
+ to_fi_audio_source(f->fi);
+ struct audio_source_config *config =
+ fi_audio->config;
+
+ err = snd_card_setup(c, config);
+ if (err)
+ return err;
+ }
+
+ audio_build_desc(audio);
+
+ /* allocate instance-specific interface IDs, and patch descriptors */
+ status = usb_interface_id(c, f);
+ if (status < 0)
+ goto fail;
+ ac_interface_desc.bInterfaceNumber = status;
+
+ /* AUDIO_AC_INTERFACE */
+ ac_header_desc.baInterfaceNr[0] = status;
+
+ status = usb_interface_id(c, f);
+ if (status < 0)
+ goto fail;
+ as_interface_alt_0_desc.bInterfaceNumber = status;
+ as_interface_alt_1_desc.bInterfaceNumber = status;
+
+ /* AUDIO_AS_INTERFACE */
+ ac_header_desc.baInterfaceNr[1] = status;
+
+ status = -ENODEV;
+
+ /* allocate our endpoint */
+ ep = usb_ep_autoconfig(cdev->gadget, &fs_as_in_ep_desc);
+ if (!ep)
+ goto fail;
+ audio->in_ep = ep;
+ ep->driver_data = audio; /* claim */
+
+ if (gadget_is_dualspeed(c->cdev->gadget))
+ hs_as_in_ep_desc.bEndpointAddress =
+ fs_as_in_ep_desc.bEndpointAddress;
+
+ f->fs_descriptors = fs_audio_desc;
+ f->hs_descriptors = hs_audio_desc;
+
+ for (i = 0, status = 0; i < IN_EP_REQ_COUNT && status == 0; i++) {
+ req = audio_request_new(ep, IN_EP_MAX_PACKET_SIZE);
+ if (req) {
+ req->context = audio;
+ req->complete = audio_data_complete;
+ audio_req_put(audio, req);
+ } else
+ status = -ENOMEM;
+ }
+
+fail:
+ return status;
+}
+
+static void
+audio_unbind(struct usb_configuration *c, struct usb_function *f)
+{
+ struct audio_dev *audio = func_to_audio(f);
+ struct usb_request *req;
+
+ while ((req = audio_req_get(audio)))
+ audio_request_free(req, audio->in_ep);
+
+ snd_card_free_when_closed(audio->card);
+ audio->card = NULL;
+ audio->pcm = NULL;
+ audio->substream = NULL;
+ audio->in_ep = NULL;
+
+ if (IS_ENABLED(CONFIG_USB_CONFIGFS)) {
+ struct audio_source_instance *fi_audio =
+ to_fi_audio_source(f->fi);
+ struct audio_source_config *config =
+ fi_audio->config;
+
+ config->card = -1;
+ config->device = -1;
+ }
+}
+
+static void audio_pcm_playback_start(struct audio_dev *audio)
+{
+ audio->start_time = ktime_get();
+ audio->frames_sent = 0;
+ audio_send(audio);
+}
+
+static void audio_pcm_playback_stop(struct audio_dev *audio)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&audio->lock, flags);
+ audio->buffer_start = 0;
+ audio->buffer_end = 0;
+ audio->buffer_pos = 0;
+ spin_unlock_irqrestore(&audio->lock, flags);
+}
+
+static int audio_pcm_open(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct audio_dev *audio = substream->private_data;
+
+ runtime->private_data = audio;
+ runtime->hw = audio_hw_info;
+ snd_pcm_limit_hw_rates(runtime);
+ runtime->hw.channels_max = 2;
+
+ audio->substream = substream;
+
+ /* Add the QoS request and set the latency to 0 */
+ pm_qos_add_request(&audio->pm_qos, PM_QOS_CPU_DMA_LATENCY, 0);
+
+ return 0;
+}
+
+static int audio_pcm_close(struct snd_pcm_substream *substream)
+{
+ struct audio_dev *audio = substream->private_data;
+ unsigned long flags;
+
+ spin_lock_irqsave(&audio->lock, flags);
+
+ /* Remove the QoS request */
+ pm_qos_remove_request(&audio->pm_qos);
+
+ audio->substream = NULL;
+ spin_unlock_irqrestore(&audio->lock, flags);
+
+ return 0;
+}
+
+static int audio_pcm_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ unsigned int channels = params_channels(params);
+ unsigned int rate = params_rate(params);
+
+ if (rate != SAMPLE_RATE)
+ return -EINVAL;
+ if (channels != 2)
+ return -EINVAL;
+
+ return snd_pcm_lib_alloc_vmalloc_buffer(substream,
+ params_buffer_bytes(params));
+}
+
+static int audio_pcm_hw_free(struct snd_pcm_substream *substream)
+{
+ return snd_pcm_lib_free_vmalloc_buffer(substream);
+}
+
+static int audio_pcm_prepare(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct audio_dev *audio = runtime->private_data;
+
+ audio->period = snd_pcm_lib_period_bytes(substream);
+ audio->period_offset = 0;
+ audio->buffer_start = runtime->dma_area;
+ audio->buffer_end = audio->buffer_start
+ + snd_pcm_lib_buffer_bytes(substream);
+ audio->buffer_pos = audio->buffer_start;
+
+ return 0;
+}
+
+static snd_pcm_uframes_t audio_pcm_pointer(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct audio_dev *audio = runtime->private_data;
+ ssize_t bytes = audio->buffer_pos - audio->buffer_start;
+
+ /* return offset of next frame to fill in our buffer */
+ return bytes_to_frames(runtime, bytes);
+}
+
+static int audio_pcm_playback_trigger(struct snd_pcm_substream *substream,
+ int cmd)
+{
+ struct audio_dev *audio = substream->runtime->private_data;
+ int ret = 0;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ audio_pcm_playback_start(audio);
+ break;
+
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ audio_pcm_playback_stop(audio);
+ break;
+
+ default:
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+static struct audio_dev _audio_dev = {
+ .func = {
+ .name = "audio_source",
+ .bind = audio_bind,
+ .unbind = audio_unbind,
+ .set_alt = audio_set_alt,
+ .setup = audio_setup,
+ .disable = audio_disable,
+ .free_func = audio_free_func,
+ },
+ .lock = __SPIN_LOCK_UNLOCKED(_audio_dev.lock),
+ .idle_reqs = LIST_HEAD_INIT(_audio_dev.idle_reqs),
+};
+
+static struct snd_pcm_ops audio_playback_ops = {
+ .open = audio_pcm_open,
+ .close = audio_pcm_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = audio_pcm_hw_params,
+ .hw_free = audio_pcm_hw_free,
+ .prepare = audio_pcm_prepare,
+ .trigger = audio_pcm_playback_trigger,
+ .pointer = audio_pcm_pointer,
+};
+
+int audio_source_bind_config(struct usb_configuration *c,
+ struct audio_source_config *config)
+{
+ struct audio_dev *audio;
+ int err;
+
+ config->card = -1;
+ config->device = -1;
+
+ audio = &_audio_dev;
+
+ err = snd_card_setup(c, config);
+ if (err)
+ return err;
+
+ err = usb_add_function(c, &audio->func);
+ if (err)
+ goto add_fail;
+
+ return 0;
+
+add_fail:
+ snd_card_free(audio->card);
+ return err;
+}
+
+static int snd_card_setup(struct usb_configuration *c,
+ struct audio_source_config *config)
+{
+ struct audio_dev *audio;
+ struct snd_card *card;
+ struct snd_pcm *pcm;
+ int err;
+
+ audio = &_audio_dev;
+
+ err = snd_card_new(&c->cdev->gadget->dev,
+ SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1,
+ THIS_MODULE, 0, &card);
+ if (err)
+ return err;
+
+ err = snd_pcm_new(card, "USB audio source", 0, 1, 0, &pcm);
+ if (err)
+ goto pcm_fail;
+
+ pcm->private_data = audio;
+ pcm->info_flags = 0;
+ audio->pcm = pcm;
+
+ strlcpy(pcm->name, "USB gadget audio", sizeof(pcm->name));
+
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &audio_playback_ops);
+ snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+ NULL, 0, 64 * 1024);
+
+ strlcpy(card->driver, "audio_source", sizeof(card->driver));
+ strlcpy(card->shortname, card->driver, sizeof(card->shortname));
+ strlcpy(card->longname, "USB accessory audio source",
+ sizeof(card->longname));
+
+ err = snd_card_register(card);
+ if (err)
+ goto register_fail;
+
+ config->card = pcm->card->number;
+ config->device = pcm->device;
+ audio->card = card;
+ return 0;
+
+register_fail:
+pcm_fail:
+ snd_card_free(audio->card);
+ return err;
+}
+
+static struct audio_source_instance *to_audio_source_instance(
+ struct config_item *item)
+{
+ return container_of(to_config_group(item), struct audio_source_instance,
+ func_inst.group);
+}
+
+static struct audio_source_instance *to_fi_audio_source(
+ const struct usb_function_instance *fi)
+{
+ return container_of(fi, struct audio_source_instance, func_inst);
+}
+
+static void audio_source_attr_release(struct config_item *item)
+{
+ struct audio_source_instance *fi_audio = to_audio_source_instance(item);
+
+ usb_put_function_instance(&fi_audio->func_inst);
+}
+
+static int audio_source_set_inst_name(struct usb_function_instance *fi,
+ const char *name)
+{
+ struct audio_source_instance *fi_audio;
+ char *ptr;
+ int name_len;
+
+ name_len = strlen(name) + 1;
+ if (name_len > MAX_INST_NAME_LEN)
+ return -ENAMETOOLONG;
+
+ ptr = kstrndup(name, name_len, GFP_KERNEL);
+ if (!ptr)
+ return -ENOMEM;
+
+ fi_audio = to_fi_audio_source(fi);
+ fi_audio->name = ptr;
+
+ return 0;
+}
+
+static void audio_source_free_inst(struct usb_function_instance *fi)
+{
+ struct audio_source_instance *fi_audio;
+
+ fi_audio = to_fi_audio_source(fi);
+ device_destroy(fi_audio->audio_device->class,
+ fi_audio->audio_device->devt);
+ kfree(fi_audio->name);
+ kfree(fi_audio->config);
+}
+
+static ssize_t audio_source_pcm_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct audio_source_instance *fi_audio = dev_get_drvdata(dev);
+ struct audio_source_config *config = fi_audio->config;
+
+ /* print PCM card and device numbers */
+ return sprintf(buf, "%d %d\n", config->card, config->device);
+}
+
+struct device *create_function_device(char *name);
+
+static struct usb_function_instance *audio_source_alloc_inst(void)
+{
+ struct audio_source_instance *fi_audio;
+ struct device_attribute **attrs;
+ struct device_attribute *attr;
+ struct device *dev;
+ void *err_ptr;
+ int err = 0;
+
+ fi_audio = kzalloc(sizeof(*fi_audio), GFP_KERNEL);
+ if (!fi_audio)
+ return ERR_PTR(-ENOMEM);
+
+ fi_audio->func_inst.set_inst_name = audio_source_set_inst_name;
+ fi_audio->func_inst.free_func_inst = audio_source_free_inst;
+
+ fi_audio->config = kzalloc(sizeof(struct audio_source_config),
+ GFP_KERNEL);
+ if (!fi_audio->config) {
+ err_ptr = ERR_PTR(-ENOMEM);
+ goto fail_audio;
+ }
+
+ config_group_init_type_name(&fi_audio->func_inst.group, "",
+ &audio_source_func_type);
+ dev = create_function_device("f_audio_source");
+
+ if (IS_ERR(dev)) {
+ err_ptr = dev;
+ goto fail_audio_config;
+ }
+
+ fi_audio->config->card = -1;
+ fi_audio->config->device = -1;
+ fi_audio->audio_device = dev;
+
+ attrs = audio_source_function_attributes;
+ if (attrs) {
+ while ((attr = *attrs++) && !err)
+ err = device_create_file(dev, attr);
+ if (err) {
+ err_ptr = ERR_PTR(-EINVAL);
+ goto fail_device;
+ }
+ }
+
+ dev_set_drvdata(dev, fi_audio);
+ _audio_dev.config = fi_audio->config;
+
+ return &fi_audio->func_inst;
+
+fail_device:
+ device_destroy(dev->class, dev->devt);
+fail_audio_config:
+ kfree(fi_audio->config);
+fail_audio:
+ kfree(fi_audio);
+ return err_ptr;
+
+}
+
+static struct usb_function *audio_source_alloc(struct usb_function_instance *fi)
+{
+ return &_audio_dev.func;
+}
+
+DECLARE_USB_FUNCTION_INIT(audio_source, audio_source_alloc_inst,
+ audio_source_alloc);
+MODULE_LICENSE("GPL");
diff --git a/drivers/usb/gadget/function/f_midi.c b/drivers/usb/gadget/function/f_midi.c
index 0e083a5..6745919 100644
--- a/drivers/usb/gadget/function/f_midi.c
+++ b/drivers/usb/gadget/function/f_midi.c
@@ -1222,6 +1222,65 @@ static void f_midi_free_inst(struct usb_function_instance *f)
}
}
+#ifdef CONFIG_USB_CONFIGFS_UEVENT
+extern struct device *create_function_device(char *name);
+static ssize_t alsa_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct usb_function_instance *fi_midi = dev_get_drvdata(dev);
+ struct f_midi *midi;
+
+ if (!fi_midi->f)
+ dev_warn(dev, "f_midi: function not set\n");
+
+ if (fi_midi && fi_midi->f) {
+ midi = func_to_midi(fi_midi->f);
+ if (midi->rmidi && midi->rmidi->card)
+ return sprintf(buf, "%d %d\n",
+ midi->rmidi->card->number, midi->rmidi->device);
+ }
+
+ /* print PCM card and device numbers */
+ return sprintf(buf, "%d %d\n", -1, -1);
+}
+
+static DEVICE_ATTR(alsa, S_IRUGO, alsa_show, NULL);
+
+static struct device_attribute *alsa_function_attributes[] = {
+ &dev_attr_alsa,
+ NULL
+};
+
+static int create_alsa_device(struct usb_function_instance *fi)
+{
+ struct device *dev;
+ struct device_attribute **attrs;
+ struct device_attribute *attr;
+ int err = 0;
+
+ dev = create_function_device("f_midi");
+ if (IS_ERR(dev))
+ return PTR_ERR(dev);
+
+ attrs = alsa_function_attributes;
+ if (attrs) {
+ while ((attr = *attrs++) && !err)
+ err = device_create_file(dev, attr);
+ if (err) {
+ device_destroy(dev->class, dev->devt);
+ return -EINVAL;
+ }
+ }
+ dev_set_drvdata(dev, fi);
+ return 0;
+}
+#else
+static int create_alsa_device(struct usb_function_instance *fi)
+{
+ return 0;
+}
+#endif
+
static struct usb_function_instance *f_midi_alloc_inst(void)
{
struct f_midi_opts *opts;
@@ -1240,6 +1299,11 @@ static struct usb_function_instance *f_midi_alloc_inst(void)
opts->out_ports = 1;
opts->refcnt = 1;
+ if (create_alsa_device(&opts->func_inst)) {
+ kfree(opts);
+ return ERR_PTR(-ENODEV);
+ }
+
config_group_init_type_name(&opts->func_inst.group, "",
&midi_func_type);
@@ -1260,6 +1324,7 @@ static void f_midi_free(struct usb_function *f)
kfifo_free(&midi->in_req_fifo);
kfree(midi);
free = true;
+ opts->func_inst.f = NULL;
}
mutex_unlock(&opts->lock);
@@ -1347,6 +1412,7 @@ static struct usb_function *f_midi_alloc(struct usb_function_instance *fi)
midi->func.disable = f_midi_disable;
midi->func.free_func = f_midi_free;
+ fi->f = &midi->func;
return &midi->func;
midi_free:
diff --git a/drivers/usb/gadget/legacy/Kconfig b/drivers/usb/gadget/legacy/Kconfig
index 784bf86..68d4ab8 100644
--- a/drivers/usb/gadget/legacy/Kconfig
+++ b/drivers/usb/gadget/legacy/Kconfig
@@ -13,6 +13,32 @@
# both kinds of controller can also support "USB On-the-Go" (CONFIG_USB_OTG).
#
+choice
+ tristate "USB Gadget precomposed configurations"
+ default USB_ETH
+ optional
+ help
+ A Linux "Gadget Driver" talks to the USB Peripheral Controller
+ driver through the abstract "gadget" API. Some other operating
+ systems call these "client" drivers, of which "class drivers"
+ are a subset (implementing a USB device class specification).
+ A gadget driver implements one or more USB functions using
+ the peripheral hardware.
+
+ Gadget drivers are hardware-neutral, or "platform independent",
+ except that they sometimes must understand quirks or limitations
+ of the particular controllers they work with. For example, when
+ a controller doesn't support alternate configurations or provide
+ enough of the right types of endpoints, the gadget driver might
+ not be able work with that controller, or might need to implement
+ a less common variant of a device class protocol.
+
+ The available choices each represent a single precomposed USB
+ gadget configuration. In the device model, each option contains
+ both the device instantiation as a child for a USB gadget
+ controller, and the relevant drivers for each function declared
+ by the device.
+
config USB_ZERO
tristate "Gadget Zero (DEVELOPMENT)"
select USB_LIBCOMPOSITE
@@ -490,3 +516,16 @@
Say "y" to link the driver statically, or "m" to build a
dynamically linked module called "g_webcam".
+
+config USB_RAW_GADGET
+ tristate "USB Raw Gadget"
+ help
+ USB Raw Gadget is a kernel module that provides a userspace interface
+ for the USB Gadget subsystem. Essentially it allows to emulate USB
+ devices from userspace. See Documentation/usb/raw-gadget.rst for
+ details.
+
+ Say "y" to link the driver statically, or "m" to build a
+ dynamically linked module called "raw_gadget".
+
+endchoice
diff --git a/drivers/usb/gadget/legacy/Makefile b/drivers/usb/gadget/legacy/Makefile
index abd0c3e..4d864bf 100644
--- a/drivers/usb/gadget/legacy/Makefile
+++ b/drivers/usb/gadget/legacy/Makefile
@@ -43,3 +43,4 @@
obj-$(CONFIG_USB_G_NCM) += g_ncm.o
obj-$(CONFIG_USB_G_ACM_MS) += g_acm_ms.o
obj-$(CONFIG_USB_GADGET_TARGET) += tcm_usb_gadget.o
+obj-$(CONFIG_USB_RAW_GADGET) += raw_gadget.o
diff --git a/drivers/usb/gadget/legacy/raw_gadget.c b/drivers/usb/gadget/legacy/raw_gadget.c
new file mode 100644
index 0000000..e01e366
--- /dev/null
+++ b/drivers/usb/gadget/legacy/raw_gadget.c
@@ -0,0 +1,1280 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * USB Raw Gadget driver.
+ * See Documentation/usb/raw-gadget.rst for more details.
+ *
+ * Andrey Konovalov <andreyknvl@gmail.com>
+ */
+
+#include <linux/compiler.h>
+#include <linux/ctype.h>
+#include <linux/debugfs.h>
+#include <linux/delay.h>
+#include <linux/kref.h>
+#include <linux/miscdevice.h>
+#include <linux/module.h>
+#include <linux/semaphore.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/uaccess.h>
+#include <linux/wait.h>
+
+#include <linux/usb.h>
+#include <linux/usb/ch9.h>
+#include <linux/usb/ch11.h>
+#include <linux/usb/gadget.h>
+
+#include <uapi/linux/usb/raw_gadget.h>
+
+#define DRIVER_DESC "USB Raw Gadget"
+#define DRIVER_NAME "raw-gadget"
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_AUTHOR("Andrey Konovalov");
+MODULE_LICENSE("GPL");
+
+/*----------------------------------------------------------------------*/
+
+#define RAW_EVENT_QUEUE_SIZE 16
+
+struct raw_event_queue {
+ /* See the comment in raw_event_queue_fetch() for locking details. */
+ spinlock_t lock;
+ struct semaphore sema;
+ struct usb_raw_event *events[RAW_EVENT_QUEUE_SIZE];
+ int size;
+};
+
+static void raw_event_queue_init(struct raw_event_queue *queue)
+{
+ spin_lock_init(&queue->lock);
+ sema_init(&queue->sema, 0);
+ queue->size = 0;
+}
+
+static int raw_event_queue_add(struct raw_event_queue *queue,
+ enum usb_raw_event_type type, size_t length, const void *data)
+{
+ unsigned long flags;
+ struct usb_raw_event *event;
+
+ spin_lock_irqsave(&queue->lock, flags);
+ if (WARN_ON(queue->size >= RAW_EVENT_QUEUE_SIZE)) {
+ spin_unlock_irqrestore(&queue->lock, flags);
+ return -ENOMEM;
+ }
+ event = kmalloc(sizeof(*event) + length, GFP_ATOMIC);
+ if (!event) {
+ spin_unlock_irqrestore(&queue->lock, flags);
+ return -ENOMEM;
+ }
+ event->type = type;
+ event->length = length;
+ if (event->length)
+ memcpy(&event->data[0], data, length);
+ queue->events[queue->size] = event;
+ queue->size++;
+ up(&queue->sema);
+ spin_unlock_irqrestore(&queue->lock, flags);
+ return 0;
+}
+
+static struct usb_raw_event *raw_event_queue_fetch(
+ struct raw_event_queue *queue)
+{
+ int ret;
+ unsigned long flags;
+ struct usb_raw_event *event;
+
+ /*
+ * This function can be called concurrently. We first check that
+ * there's at least one event queued by decrementing the semaphore,
+ * and then take the lock to protect queue struct fields.
+ */
+ ret = down_interruptible(&queue->sema);
+ if (ret)
+ return ERR_PTR(ret);
+ spin_lock_irqsave(&queue->lock, flags);
+ /*
+ * queue->size must have the same value as queue->sema counter (before
+ * the down_interruptible() call above), so this check is a fail-safe.
+ */
+ if (WARN_ON(!queue->size)) {
+ spin_unlock_irqrestore(&queue->lock, flags);
+ return ERR_PTR(-ENODEV);
+ }
+ event = queue->events[0];
+ queue->size--;
+ memmove(&queue->events[0], &queue->events[1],
+ queue->size * sizeof(queue->events[0]));
+ spin_unlock_irqrestore(&queue->lock, flags);
+ return event;
+}
+
+static void raw_event_queue_destroy(struct raw_event_queue *queue)
+{
+ int i;
+
+ for (i = 0; i < queue->size; i++)
+ kfree(queue->events[i]);
+ queue->size = 0;
+}
+
+/*----------------------------------------------------------------------*/
+
+struct raw_dev;
+
+enum ep_state {
+ STATE_EP_DISABLED,
+ STATE_EP_ENABLED,
+};
+
+struct raw_ep {
+ struct raw_dev *dev;
+ enum ep_state state;
+ struct usb_ep *ep;
+ u8 addr;
+ struct usb_request *req;
+ bool urb_queued;
+ bool disabling;
+ ssize_t status;
+};
+
+enum dev_state {
+ STATE_DEV_INVALID = 0,
+ STATE_DEV_OPENED,
+ STATE_DEV_INITIALIZED,
+ STATE_DEV_RUNNING,
+ STATE_DEV_CLOSED,
+ STATE_DEV_FAILED
+};
+
+struct raw_dev {
+ struct kref count;
+ spinlock_t lock;
+
+ const char *udc_name;
+ struct usb_gadget_driver driver;
+
+ /* Reference to misc device: */
+ struct device *dev;
+
+ /* Protected by lock: */
+ enum dev_state state;
+ bool gadget_registered;
+ struct usb_gadget *gadget;
+ struct usb_request *req;
+ bool ep0_in_pending;
+ bool ep0_out_pending;
+ bool ep0_urb_queued;
+ ssize_t ep0_status;
+ struct raw_ep eps[USB_RAW_EPS_NUM_MAX];
+ int eps_num;
+
+ struct completion ep0_done;
+ struct raw_event_queue queue;
+};
+
+static struct raw_dev *dev_new(void)
+{
+ struct raw_dev *dev;
+
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (!dev)
+ return NULL;
+ /* Matches kref_put() in raw_release(). */
+ kref_init(&dev->count);
+ spin_lock_init(&dev->lock);
+ init_completion(&dev->ep0_done);
+ raw_event_queue_init(&dev->queue);
+ return dev;
+}
+
+static void dev_free(struct kref *kref)
+{
+ struct raw_dev *dev = container_of(kref, struct raw_dev, count);
+ int i;
+
+ kfree(dev->udc_name);
+ kfree(dev->driver.udc_name);
+ if (dev->req) {
+ if (dev->ep0_urb_queued)
+ usb_ep_dequeue(dev->gadget->ep0, dev->req);
+ usb_ep_free_request(dev->gadget->ep0, dev->req);
+ }
+ raw_event_queue_destroy(&dev->queue);
+ for (i = 0; i < dev->eps_num; i++) {
+ if (dev->eps[i].state == STATE_EP_DISABLED)
+ continue;
+ usb_ep_disable(dev->eps[i].ep);
+ usb_ep_free_request(dev->eps[i].ep, dev->eps[i].req);
+ kfree(dev->eps[i].ep->desc);
+ dev->eps[i].state = STATE_EP_DISABLED;
+ }
+ kfree(dev);
+}
+
+/*----------------------------------------------------------------------*/
+
+static int raw_queue_event(struct raw_dev *dev,
+ enum usb_raw_event_type type, size_t length, const void *data)
+{
+ int ret = 0;
+ unsigned long flags;
+
+ ret = raw_event_queue_add(&dev->queue, type, length, data);
+ if (ret < 0) {
+ spin_lock_irqsave(&dev->lock, flags);
+ dev->state = STATE_DEV_FAILED;
+ spin_unlock_irqrestore(&dev->lock, flags);
+ }
+ return ret;
+}
+
+static void gadget_ep0_complete(struct usb_ep *ep, struct usb_request *req)
+{
+ struct raw_dev *dev = req->context;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->lock, flags);
+ if (req->status)
+ dev->ep0_status = req->status;
+ else
+ dev->ep0_status = req->actual;
+ if (dev->ep0_in_pending)
+ dev->ep0_in_pending = false;
+ else
+ dev->ep0_out_pending = false;
+ spin_unlock_irqrestore(&dev->lock, flags);
+
+ complete(&dev->ep0_done);
+}
+
+static u8 get_ep_addr(const char *name)
+{
+ /* If the endpoint has fixed function (named as e.g. "ep12out-bulk"),
+ * parse the endpoint address from its name. We deliberately use
+ * deprecated simple_strtoul() function here, as the number isn't
+ * followed by '\0' nor '\n'.
+ */
+ if (isdigit(name[2]))
+ return simple_strtoul(&name[2], NULL, 10);
+ /* Otherwise the endpoint is configurable (named as e.g. "ep-a"). */
+ return USB_RAW_EP_ADDR_ANY;
+}
+
+static int gadget_bind(struct usb_gadget *gadget,
+ struct usb_gadget_driver *driver)
+{
+ int ret = 0, i = 0;
+ struct raw_dev *dev = container_of(driver, struct raw_dev, driver);
+ struct usb_request *req;
+ struct usb_ep *ep;
+ unsigned long flags;
+
+ if (strcmp(gadget->name, dev->udc_name) != 0)
+ return -ENODEV;
+
+ set_gadget_data(gadget, dev);
+ req = usb_ep_alloc_request(gadget->ep0, GFP_KERNEL);
+ if (!req) {
+ dev_err(&gadget->dev, "usb_ep_alloc_request failed\n");
+ set_gadget_data(gadget, NULL);
+ return -ENOMEM;
+ }
+
+ spin_lock_irqsave(&dev->lock, flags);
+ dev->req = req;
+ dev->req->context = dev;
+ dev->req->complete = gadget_ep0_complete;
+ dev->gadget = gadget;
+ gadget_for_each_ep(ep, dev->gadget) {
+ dev->eps[i].ep = ep;
+ dev->eps[i].addr = get_ep_addr(ep->name);
+ dev->eps[i].state = STATE_EP_DISABLED;
+ i++;
+ }
+ dev->eps_num = i;
+ spin_unlock_irqrestore(&dev->lock, flags);
+
+ /* Matches kref_put() in gadget_unbind(). */
+ kref_get(&dev->count);
+
+ ret = raw_queue_event(dev, USB_RAW_EVENT_CONNECT, 0, NULL);
+ if (ret < 0)
+ dev_err(&gadget->dev, "failed to queue event\n");
+
+ return ret;
+}
+
+static void gadget_unbind(struct usb_gadget *gadget)
+{
+ struct raw_dev *dev = get_gadget_data(gadget);
+
+ set_gadget_data(gadget, NULL);
+ /* Matches kref_get() in gadget_bind(). */
+ kref_put(&dev->count, dev_free);
+}
+
+static int gadget_setup(struct usb_gadget *gadget,
+ const struct usb_ctrlrequest *ctrl)
+{
+ int ret = 0;
+ struct raw_dev *dev = get_gadget_data(gadget);
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->lock, flags);
+ if (dev->state != STATE_DEV_RUNNING) {
+ dev_err(&gadget->dev, "ignoring, device is not running\n");
+ ret = -ENODEV;
+ goto out_unlock;
+ }
+ if (dev->ep0_in_pending || dev->ep0_out_pending) {
+ dev_dbg(&gadget->dev, "stalling, request already pending\n");
+ ret = -EBUSY;
+ goto out_unlock;
+ }
+ if ((ctrl->bRequestType & USB_DIR_IN) && ctrl->wLength)
+ dev->ep0_in_pending = true;
+ else
+ dev->ep0_out_pending = true;
+ spin_unlock_irqrestore(&dev->lock, flags);
+
+ ret = raw_queue_event(dev, USB_RAW_EVENT_CONTROL, sizeof(*ctrl), ctrl);
+ if (ret < 0)
+ dev_err(&gadget->dev, "failed to queue event\n");
+ goto out;
+
+out_unlock:
+ spin_unlock_irqrestore(&dev->lock, flags);
+out:
+ return ret;
+}
+
+/* These are currently unused but present in case UDC driver requires them. */
+static void gadget_disconnect(struct usb_gadget *gadget) { }
+static void gadget_suspend(struct usb_gadget *gadget) { }
+static void gadget_resume(struct usb_gadget *gadget) { }
+static void gadget_reset(struct usb_gadget *gadget) { }
+
+/*----------------------------------------------------------------------*/
+
+static struct miscdevice raw_misc_device;
+
+static int raw_open(struct inode *inode, struct file *fd)
+{
+ struct raw_dev *dev;
+
+ /* Nonblocking I/O is not supported yet. */
+ if (fd->f_flags & O_NONBLOCK)
+ return -EINVAL;
+
+ dev = dev_new();
+ if (!dev)
+ return -ENOMEM;
+ fd->private_data = dev;
+ dev->state = STATE_DEV_OPENED;
+ dev->dev = raw_misc_device.this_device;
+ return 0;
+}
+
+static int raw_release(struct inode *inode, struct file *fd)
+{
+ int ret = 0;
+ struct raw_dev *dev = fd->private_data;
+ unsigned long flags;
+ bool unregister = false;
+
+ spin_lock_irqsave(&dev->lock, flags);
+ dev->state = STATE_DEV_CLOSED;
+ if (!dev->gadget) {
+ spin_unlock_irqrestore(&dev->lock, flags);
+ goto out_put;
+ }
+ if (dev->gadget_registered)
+ unregister = true;
+ dev->gadget_registered = false;
+ spin_unlock_irqrestore(&dev->lock, flags);
+
+ if (unregister) {
+ ret = usb_gadget_unregister_driver(&dev->driver);
+ if (ret != 0)
+ dev_err(dev->dev,
+ "usb_gadget_unregister_driver() failed with %d\n",
+ ret);
+ /* Matches kref_get() in raw_ioctl_run(). */
+ kref_put(&dev->count, dev_free);
+ }
+
+out_put:
+ /* Matches dev_new() in raw_open(). */
+ kref_put(&dev->count, dev_free);
+ return ret;
+}
+
+/*----------------------------------------------------------------------*/
+
+static int raw_ioctl_init(struct raw_dev *dev, unsigned long value)
+{
+ int ret = 0;
+ struct usb_raw_init arg;
+ char *udc_driver_name;
+ char *udc_device_name;
+ unsigned long flags;
+
+ if (copy_from_user(&arg, (void __user *)value, sizeof(arg)))
+ return -EFAULT;
+
+ switch (arg.speed) {
+ case USB_SPEED_UNKNOWN:
+ arg.speed = USB_SPEED_HIGH;
+ break;
+ case USB_SPEED_LOW:
+ case USB_SPEED_FULL:
+ case USB_SPEED_HIGH:
+ case USB_SPEED_SUPER:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ udc_driver_name = kmalloc(UDC_NAME_LENGTH_MAX, GFP_KERNEL);
+ if (!udc_driver_name)
+ return -ENOMEM;
+ ret = strscpy(udc_driver_name, &arg.driver_name[0],
+ UDC_NAME_LENGTH_MAX);
+ if (ret < 0) {
+ kfree(udc_driver_name);
+ return ret;
+ }
+ ret = 0;
+
+ udc_device_name = kmalloc(UDC_NAME_LENGTH_MAX, GFP_KERNEL);
+ if (!udc_device_name) {
+ kfree(udc_driver_name);
+ return -ENOMEM;
+ }
+ ret = strscpy(udc_device_name, &arg.device_name[0],
+ UDC_NAME_LENGTH_MAX);
+ if (ret < 0) {
+ kfree(udc_driver_name);
+ kfree(udc_device_name);
+ return ret;
+ }
+ ret = 0;
+
+ spin_lock_irqsave(&dev->lock, flags);
+ if (dev->state != STATE_DEV_OPENED) {
+ dev_dbg(dev->dev, "fail, device is not opened\n");
+ kfree(udc_driver_name);
+ kfree(udc_device_name);
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+ dev->udc_name = udc_driver_name;
+
+ dev->driver.function = DRIVER_DESC;
+ dev->driver.max_speed = arg.speed;
+ dev->driver.setup = gadget_setup;
+ dev->driver.disconnect = gadget_disconnect;
+ dev->driver.bind = gadget_bind;
+ dev->driver.unbind = gadget_unbind;
+ dev->driver.suspend = gadget_suspend;
+ dev->driver.resume = gadget_resume;
+ dev->driver.reset = gadget_reset;
+ dev->driver.driver.name = DRIVER_NAME;
+ dev->driver.udc_name = udc_device_name;
+ dev->driver.match_existing_only = 1;
+
+ dev->state = STATE_DEV_INITIALIZED;
+
+out_unlock:
+ spin_unlock_irqrestore(&dev->lock, flags);
+ return ret;
+}
+
+static int raw_ioctl_run(struct raw_dev *dev, unsigned long value)
+{
+ int ret = 0;
+ unsigned long flags;
+
+ if (value)
+ return -EINVAL;
+
+ spin_lock_irqsave(&dev->lock, flags);
+ if (dev->state != STATE_DEV_INITIALIZED) {
+ dev_dbg(dev->dev, "fail, device is not initialized\n");
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+ spin_unlock_irqrestore(&dev->lock, flags);
+
+ ret = usb_gadget_probe_driver(&dev->driver);
+
+ spin_lock_irqsave(&dev->lock, flags);
+ if (ret) {
+ dev_err(dev->dev,
+ "fail, usb_gadget_probe_driver returned %d\n", ret);
+ dev->state = STATE_DEV_FAILED;
+ goto out_unlock;
+ }
+ dev->gadget_registered = true;
+ dev->state = STATE_DEV_RUNNING;
+ /* Matches kref_put() in raw_release(). */
+ kref_get(&dev->count);
+
+out_unlock:
+ spin_unlock_irqrestore(&dev->lock, flags);
+ return ret;
+}
+
+static int raw_ioctl_event_fetch(struct raw_dev *dev, unsigned long value)
+{
+ struct usb_raw_event arg;
+ unsigned long flags;
+ struct usb_raw_event *event;
+ uint32_t length;
+
+ if (copy_from_user(&arg, (void __user *)value, sizeof(arg)))
+ return -EFAULT;
+
+ spin_lock_irqsave(&dev->lock, flags);
+ if (dev->state != STATE_DEV_RUNNING) {
+ dev_dbg(dev->dev, "fail, device is not running\n");
+ spin_unlock_irqrestore(&dev->lock, flags);
+ return -EINVAL;
+ }
+ if (!dev->gadget) {
+ dev_dbg(dev->dev, "fail, gadget is not bound\n");
+ spin_unlock_irqrestore(&dev->lock, flags);
+ return -EBUSY;
+ }
+ spin_unlock_irqrestore(&dev->lock, flags);
+
+ event = raw_event_queue_fetch(&dev->queue);
+ if (PTR_ERR(event) == -EINTR) {
+ dev_dbg(&dev->gadget->dev, "event fetching interrupted\n");
+ return -EINTR;
+ }
+ if (IS_ERR(event)) {
+ dev_err(&dev->gadget->dev, "failed to fetch event\n");
+ spin_lock_irqsave(&dev->lock, flags);
+ dev->state = STATE_DEV_FAILED;
+ spin_unlock_irqrestore(&dev->lock, flags);
+ return -ENODEV;
+ }
+ length = min(arg.length, event->length);
+ if (copy_to_user((void __user *)value, event, sizeof(*event) + length))
+ return -EFAULT;
+
+ return 0;
+}
+
+static void *raw_alloc_io_data(struct usb_raw_ep_io *io, void __user *ptr,
+ bool get_from_user)
+{
+ void *data;
+
+ if (copy_from_user(io, ptr, sizeof(*io)))
+ return ERR_PTR(-EFAULT);
+ if (io->ep >= USB_RAW_EPS_NUM_MAX)
+ return ERR_PTR(-EINVAL);
+ if (!usb_raw_io_flags_valid(io->flags))
+ return ERR_PTR(-EINVAL);
+ if (io->length > PAGE_SIZE)
+ return ERR_PTR(-EINVAL);
+ if (get_from_user)
+ data = memdup_user(ptr + sizeof(*io), io->length);
+ else {
+ data = kmalloc(io->length, GFP_KERNEL);
+ if (!data)
+ data = ERR_PTR(-ENOMEM);
+ }
+ return data;
+}
+
+static int raw_process_ep0_io(struct raw_dev *dev, struct usb_raw_ep_io *io,
+ void *data, bool in)
+{
+ int ret = 0;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->lock, flags);
+ if (dev->state != STATE_DEV_RUNNING) {
+ dev_dbg(dev->dev, "fail, device is not running\n");
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+ if (!dev->gadget) {
+ dev_dbg(dev->dev, "fail, gadget is not bound\n");
+ ret = -EBUSY;
+ goto out_unlock;
+ }
+ if (dev->ep0_urb_queued) {
+ dev_dbg(&dev->gadget->dev, "fail, urb already queued\n");
+ ret = -EBUSY;
+ goto out_unlock;
+ }
+ if ((in && !dev->ep0_in_pending) ||
+ (!in && !dev->ep0_out_pending)) {
+ dev_dbg(&dev->gadget->dev, "fail, wrong direction\n");
+ ret = -EBUSY;
+ goto out_unlock;
+ }
+ if (WARN_ON(in && dev->ep0_out_pending)) {
+ ret = -ENODEV;
+ dev->state = STATE_DEV_FAILED;
+ goto out_done;
+ }
+ if (WARN_ON(!in && dev->ep0_in_pending)) {
+ ret = -ENODEV;
+ dev->state = STATE_DEV_FAILED;
+ goto out_done;
+ }
+
+ dev->req->buf = data;
+ dev->req->length = io->length;
+ dev->req->zero = usb_raw_io_flags_zero(io->flags);
+ dev->ep0_urb_queued = true;
+ spin_unlock_irqrestore(&dev->lock, flags);
+
+ ret = usb_ep_queue(dev->gadget->ep0, dev->req, GFP_KERNEL);
+ if (ret) {
+ dev_err(&dev->gadget->dev,
+ "fail, usb_ep_queue returned %d\n", ret);
+ spin_lock_irqsave(&dev->lock, flags);
+ dev->state = STATE_DEV_FAILED;
+ goto out_done;
+ }
+
+ ret = wait_for_completion_interruptible(&dev->ep0_done);
+ if (ret) {
+ dev_dbg(&dev->gadget->dev, "wait interrupted\n");
+ usb_ep_dequeue(dev->gadget->ep0, dev->req);
+ wait_for_completion(&dev->ep0_done);
+ spin_lock_irqsave(&dev->lock, flags);
+ goto out_done;
+ }
+
+ spin_lock_irqsave(&dev->lock, flags);
+ ret = dev->ep0_status;
+
+out_done:
+ dev->ep0_urb_queued = false;
+out_unlock:
+ spin_unlock_irqrestore(&dev->lock, flags);
+ return ret;
+}
+
+static int raw_ioctl_ep0_write(struct raw_dev *dev, unsigned long value)
+{
+ int ret = 0;
+ void *data;
+ struct usb_raw_ep_io io;
+
+ data = raw_alloc_io_data(&io, (void __user *)value, true);
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+ ret = raw_process_ep0_io(dev, &io, data, true);
+ kfree(data);
+ return ret;
+}
+
+static int raw_ioctl_ep0_read(struct raw_dev *dev, unsigned long value)
+{
+ int ret = 0;
+ void *data;
+ struct usb_raw_ep_io io;
+ unsigned int length;
+
+ data = raw_alloc_io_data(&io, (void __user *)value, false);
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+ ret = raw_process_ep0_io(dev, &io, data, false);
+ if (ret < 0)
+ goto free;
+
+ length = min(io.length, (unsigned int)ret);
+ if (copy_to_user((void __user *)(value + sizeof(io)), data, length))
+ ret = -EFAULT;
+ else
+ ret = length;
+free:
+ kfree(data);
+ return ret;
+}
+
+static int raw_ioctl_ep0_stall(struct raw_dev *dev, unsigned long value)
+{
+ int ret = 0;
+ unsigned long flags;
+
+ if (value)
+ return -EINVAL;
+ spin_lock_irqsave(&dev->lock, flags);
+ if (dev->state != STATE_DEV_RUNNING) {
+ dev_dbg(dev->dev, "fail, device is not running\n");
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+ if (!dev->gadget) {
+ dev_dbg(dev->dev, "fail, gadget is not bound\n");
+ ret = -EBUSY;
+ goto out_unlock;
+ }
+ if (dev->ep0_urb_queued) {
+ dev_dbg(&dev->gadget->dev, "fail, urb already queued\n");
+ ret = -EBUSY;
+ goto out_unlock;
+ }
+ if (!dev->ep0_in_pending && !dev->ep0_out_pending) {
+ dev_dbg(&dev->gadget->dev, "fail, no request pending\n");
+ ret = -EBUSY;
+ goto out_unlock;
+ }
+
+ ret = usb_ep_set_halt(dev->gadget->ep0);
+ if (ret < 0)
+ dev_err(&dev->gadget->dev,
+ "fail, usb_ep_set_halt returned %d\n", ret);
+
+ if (dev->ep0_in_pending)
+ dev->ep0_in_pending = false;
+ else
+ dev->ep0_out_pending = false;
+
+out_unlock:
+ spin_unlock_irqrestore(&dev->lock, flags);
+ return ret;
+}
+
+static int raw_ioctl_ep_enable(struct raw_dev *dev, unsigned long value)
+{
+ int ret = 0, i;
+ unsigned long flags;
+ struct usb_endpoint_descriptor *desc;
+ struct raw_ep *ep;
+
+ desc = memdup_user((void __user *)value, sizeof(*desc));
+ if (IS_ERR(desc))
+ return PTR_ERR(desc);
+
+ /*
+ * Endpoints with a maxpacket length of 0 can cause crashes in UDC
+ * drivers.
+ */
+ if (usb_endpoint_maxp(desc) == 0) {
+ dev_dbg(dev->dev, "fail, bad endpoint maxpacket\n");
+ kfree(desc);
+ return -EINVAL;
+ }
+
+ spin_lock_irqsave(&dev->lock, flags);
+ if (dev->state != STATE_DEV_RUNNING) {
+ dev_dbg(dev->dev, "fail, device is not running\n");
+ ret = -EINVAL;
+ goto out_free;
+ }
+ if (!dev->gadget) {
+ dev_dbg(dev->dev, "fail, gadget is not bound\n");
+ ret = -EBUSY;
+ goto out_free;
+ }
+
+ for (i = 0; i < dev->eps_num; i++) {
+ ep = &dev->eps[i];
+ if (ep->state != STATE_EP_DISABLED)
+ continue;
+ if (ep->addr != usb_endpoint_num(desc) &&
+ ep->addr != USB_RAW_EP_ADDR_ANY)
+ continue;
+ if (!usb_gadget_ep_match_desc(dev->gadget, ep->ep, desc, NULL))
+ continue;
+ ep->ep->desc = desc;
+ ret = usb_ep_enable(ep->ep);
+ if (ret < 0) {
+ dev_err(&dev->gadget->dev,
+ "fail, usb_ep_enable returned %d\n", ret);
+ goto out_free;
+ }
+ ep->req = usb_ep_alloc_request(ep->ep, GFP_ATOMIC);
+ if (!ep->req) {
+ dev_err(&dev->gadget->dev,
+ "fail, usb_ep_alloc_request failed\n");
+ usb_ep_disable(ep->ep);
+ ret = -ENOMEM;
+ goto out_free;
+ }
+ ep->state = STATE_EP_ENABLED;
+ ep->ep->driver_data = ep;
+ ret = i;
+ goto out_unlock;
+ }
+
+ dev_dbg(&dev->gadget->dev, "fail, no gadget endpoints available\n");
+ ret = -EBUSY;
+
+out_free:
+ kfree(desc);
+out_unlock:
+ spin_unlock_irqrestore(&dev->lock, flags);
+ return ret;
+}
+
+static int raw_ioctl_ep_disable(struct raw_dev *dev, unsigned long value)
+{
+ int ret = 0, i = value;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->lock, flags);
+ if (dev->state != STATE_DEV_RUNNING) {
+ dev_dbg(dev->dev, "fail, device is not running\n");
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+ if (!dev->gadget) {
+ dev_dbg(dev->dev, "fail, gadget is not bound\n");
+ ret = -EBUSY;
+ goto out_unlock;
+ }
+ if (i < 0 || i >= dev->eps_num) {
+ dev_dbg(dev->dev, "fail, invalid endpoint\n");
+ ret = -EBUSY;
+ goto out_unlock;
+ }
+ if (dev->eps[i].state == STATE_EP_DISABLED) {
+ dev_dbg(&dev->gadget->dev, "fail, endpoint is not enabled\n");
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+ if (dev->eps[i].disabling) {
+ dev_dbg(&dev->gadget->dev,
+ "fail, disable already in progress\n");
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+ if (dev->eps[i].urb_queued) {
+ dev_dbg(&dev->gadget->dev,
+ "fail, waiting for urb completion\n");
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+ dev->eps[i].disabling = true;
+ spin_unlock_irqrestore(&dev->lock, flags);
+
+ usb_ep_disable(dev->eps[i].ep);
+
+ spin_lock_irqsave(&dev->lock, flags);
+ usb_ep_free_request(dev->eps[i].ep, dev->eps[i].req);
+ kfree(dev->eps[i].ep->desc);
+ dev->eps[i].state = STATE_EP_DISABLED;
+ dev->eps[i].disabling = false;
+
+out_unlock:
+ spin_unlock_irqrestore(&dev->lock, flags);
+ return ret;
+}
+
+static int raw_ioctl_ep_set_clear_halt_wedge(struct raw_dev *dev,
+ unsigned long value, bool set, bool halt)
+{
+ int ret = 0, i = value;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->lock, flags);
+ if (dev->state != STATE_DEV_RUNNING) {
+ dev_dbg(dev->dev, "fail, device is not running\n");
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+ if (!dev->gadget) {
+ dev_dbg(dev->dev, "fail, gadget is not bound\n");
+ ret = -EBUSY;
+ goto out_unlock;
+ }
+ if (i < 0 || i >= dev->eps_num) {
+ dev_dbg(dev->dev, "fail, invalid endpoint\n");
+ ret = -EBUSY;
+ goto out_unlock;
+ }
+ if (dev->eps[i].state == STATE_EP_DISABLED) {
+ dev_dbg(&dev->gadget->dev, "fail, endpoint is not enabled\n");
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+ if (dev->eps[i].disabling) {
+ dev_dbg(&dev->gadget->dev,
+ "fail, disable is in progress\n");
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+ if (dev->eps[i].urb_queued) {
+ dev_dbg(&dev->gadget->dev,
+ "fail, waiting for urb completion\n");
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+ if (usb_endpoint_xfer_isoc(dev->eps[i].ep->desc)) {
+ dev_dbg(&dev->gadget->dev,
+ "fail, can't halt/wedge ISO endpoint\n");
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+
+ if (set && halt) {
+ ret = usb_ep_set_halt(dev->eps[i].ep);
+ if (ret < 0)
+ dev_err(&dev->gadget->dev,
+ "fail, usb_ep_set_halt returned %d\n", ret);
+ } else if (!set && halt) {
+ ret = usb_ep_clear_halt(dev->eps[i].ep);
+ if (ret < 0)
+ dev_err(&dev->gadget->dev,
+ "fail, usb_ep_clear_halt returned %d\n", ret);
+ } else if (set && !halt) {
+ ret = usb_ep_set_wedge(dev->eps[i].ep);
+ if (ret < 0)
+ dev_err(&dev->gadget->dev,
+ "fail, usb_ep_set_wedge returned %d\n", ret);
+ }
+
+out_unlock:
+ spin_unlock_irqrestore(&dev->lock, flags);
+ return ret;
+}
+
+static void gadget_ep_complete(struct usb_ep *ep, struct usb_request *req)
+{
+ struct raw_ep *r_ep = (struct raw_ep *)ep->driver_data;
+ struct raw_dev *dev = r_ep->dev;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->lock, flags);
+ if (req->status)
+ r_ep->status = req->status;
+ else
+ r_ep->status = req->actual;
+ spin_unlock_irqrestore(&dev->lock, flags);
+
+ complete((struct completion *)req->context);
+}
+
+static int raw_process_ep_io(struct raw_dev *dev, struct usb_raw_ep_io *io,
+ void *data, bool in)
+{
+ int ret = 0;
+ unsigned long flags;
+ struct raw_ep *ep;
+ DECLARE_COMPLETION_ONSTACK(done);
+
+ spin_lock_irqsave(&dev->lock, flags);
+ if (dev->state != STATE_DEV_RUNNING) {
+ dev_dbg(dev->dev, "fail, device is not running\n");
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+ if (!dev->gadget) {
+ dev_dbg(dev->dev, "fail, gadget is not bound\n");
+ ret = -EBUSY;
+ goto out_unlock;
+ }
+ if (io->ep >= dev->eps_num) {
+ dev_dbg(&dev->gadget->dev, "fail, invalid endpoint\n");
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+ ep = &dev->eps[io->ep];
+ if (ep->state != STATE_EP_ENABLED) {
+ dev_dbg(&dev->gadget->dev, "fail, endpoint is not enabled\n");
+ ret = -EBUSY;
+ goto out_unlock;
+ }
+ if (ep->disabling) {
+ dev_dbg(&dev->gadget->dev,
+ "fail, endpoint is already being disabled\n");
+ ret = -EBUSY;
+ goto out_unlock;
+ }
+ if (ep->urb_queued) {
+ dev_dbg(&dev->gadget->dev, "fail, urb already queued\n");
+ ret = -EBUSY;
+ goto out_unlock;
+ }
+ if ((in && !ep->ep->caps.dir_in) || (!in && ep->ep->caps.dir_in)) {
+ dev_dbg(&dev->gadget->dev, "fail, wrong direction\n");
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+
+ ep->dev = dev;
+ ep->req->context = &done;
+ ep->req->complete = gadget_ep_complete;
+ ep->req->buf = data;
+ ep->req->length = io->length;
+ ep->req->zero = usb_raw_io_flags_zero(io->flags);
+ ep->urb_queued = true;
+ spin_unlock_irqrestore(&dev->lock, flags);
+
+ ret = usb_ep_queue(ep->ep, ep->req, GFP_KERNEL);
+ if (ret) {
+ dev_err(&dev->gadget->dev,
+ "fail, usb_ep_queue returned %d\n", ret);
+ spin_lock_irqsave(&dev->lock, flags);
+ dev->state = STATE_DEV_FAILED;
+ goto out_done;
+ }
+
+ ret = wait_for_completion_interruptible(&done);
+ if (ret) {
+ dev_dbg(&dev->gadget->dev, "wait interrupted\n");
+ usb_ep_dequeue(ep->ep, ep->req);
+ wait_for_completion(&done);
+ spin_lock_irqsave(&dev->lock, flags);
+ goto out_done;
+ }
+
+ spin_lock_irqsave(&dev->lock, flags);
+ ret = ep->status;
+
+out_done:
+ ep->urb_queued = false;
+out_unlock:
+ spin_unlock_irqrestore(&dev->lock, flags);
+ return ret;
+}
+
+static int raw_ioctl_ep_write(struct raw_dev *dev, unsigned long value)
+{
+ int ret = 0;
+ char *data;
+ struct usb_raw_ep_io io;
+
+ data = raw_alloc_io_data(&io, (void __user *)value, true);
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+ ret = raw_process_ep_io(dev, &io, data, true);
+ kfree(data);
+ return ret;
+}
+
+static int raw_ioctl_ep_read(struct raw_dev *dev, unsigned long value)
+{
+ int ret = 0;
+ char *data;
+ struct usb_raw_ep_io io;
+ unsigned int length;
+
+ data = raw_alloc_io_data(&io, (void __user *)value, false);
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+ ret = raw_process_ep_io(dev, &io, data, false);
+ if (ret < 0)
+ goto free;
+
+ length = min(io.length, (unsigned int)ret);
+ if (copy_to_user((void __user *)(value + sizeof(io)), data, length))
+ ret = -EFAULT;
+ else
+ ret = length;
+free:
+ kfree(data);
+ return ret;
+}
+
+static int raw_ioctl_configure(struct raw_dev *dev, unsigned long value)
+{
+ int ret = 0;
+ unsigned long flags;
+
+ if (value)
+ return -EINVAL;
+ spin_lock_irqsave(&dev->lock, flags);
+ if (dev->state != STATE_DEV_RUNNING) {
+ dev_dbg(dev->dev, "fail, device is not running\n");
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+ if (!dev->gadget) {
+ dev_dbg(dev->dev, "fail, gadget is not bound\n");
+ ret = -EBUSY;
+ goto out_unlock;
+ }
+ usb_gadget_set_state(dev->gadget, USB_STATE_CONFIGURED);
+
+out_unlock:
+ spin_unlock_irqrestore(&dev->lock, flags);
+ return ret;
+}
+
+static int raw_ioctl_vbus_draw(struct raw_dev *dev, unsigned long value)
+{
+ int ret = 0;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->lock, flags);
+ if (dev->state != STATE_DEV_RUNNING) {
+ dev_dbg(dev->dev, "fail, device is not running\n");
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+ if (!dev->gadget) {
+ dev_dbg(dev->dev, "fail, gadget is not bound\n");
+ ret = -EBUSY;
+ goto out_unlock;
+ }
+ usb_gadget_vbus_draw(dev->gadget, 2 * value);
+
+out_unlock:
+ spin_unlock_irqrestore(&dev->lock, flags);
+ return ret;
+}
+
+static void fill_ep_caps(struct usb_ep_caps *caps,
+ struct usb_raw_ep_caps *raw_caps)
+{
+ raw_caps->type_control = caps->type_control;
+ raw_caps->type_iso = caps->type_iso;
+ raw_caps->type_bulk = caps->type_bulk;
+ raw_caps->type_int = caps->type_int;
+ raw_caps->dir_in = caps->dir_in;
+ raw_caps->dir_out = caps->dir_out;
+}
+
+static void fill_ep_limits(struct usb_ep *ep, struct usb_raw_ep_limits *limits)
+{
+ limits->maxpacket_limit = ep->maxpacket_limit;
+ limits->max_streams = ep->max_streams;
+}
+
+static int raw_ioctl_eps_info(struct raw_dev *dev, unsigned long value)
+{
+ int ret = 0, i;
+ unsigned long flags;
+ struct usb_raw_eps_info *info;
+ struct raw_ep *ep;
+
+ info = kmalloc(sizeof(*info), GFP_KERNEL);
+ if (!info) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ spin_lock_irqsave(&dev->lock, flags);
+ if (dev->state != STATE_DEV_RUNNING) {
+ dev_dbg(dev->dev, "fail, device is not running\n");
+ ret = -EINVAL;
+ spin_unlock_irqrestore(&dev->lock, flags);
+ goto out_free;
+ }
+ if (!dev->gadget) {
+ dev_dbg(dev->dev, "fail, gadget is not bound\n");
+ ret = -EBUSY;
+ spin_unlock_irqrestore(&dev->lock, flags);
+ goto out_free;
+ }
+
+ memset(info, 0, sizeof(*info));
+ for (i = 0; i < dev->eps_num; i++) {
+ ep = &dev->eps[i];
+ strscpy(&info->eps[i].name[0], ep->ep->name,
+ USB_RAW_EP_NAME_MAX);
+ info->eps[i].addr = ep->addr;
+ fill_ep_caps(&ep->ep->caps, &info->eps[i].caps);
+ fill_ep_limits(ep->ep, &info->eps[i].limits);
+ }
+ ret = dev->eps_num;
+ spin_unlock_irqrestore(&dev->lock, flags);
+
+ if (copy_to_user((void __user *)value, info, sizeof(*info)))
+ ret = -EFAULT;
+
+out_free:
+ kfree(info);
+out:
+ return ret;
+}
+
+static long raw_ioctl(struct file *fd, unsigned int cmd, unsigned long value)
+{
+ struct raw_dev *dev = fd->private_data;
+ int ret = 0;
+
+ if (!dev)
+ return -EBUSY;
+
+ switch (cmd) {
+ case USB_RAW_IOCTL_INIT:
+ ret = raw_ioctl_init(dev, value);
+ break;
+ case USB_RAW_IOCTL_RUN:
+ ret = raw_ioctl_run(dev, value);
+ break;
+ case USB_RAW_IOCTL_EVENT_FETCH:
+ ret = raw_ioctl_event_fetch(dev, value);
+ break;
+ case USB_RAW_IOCTL_EP0_WRITE:
+ ret = raw_ioctl_ep0_write(dev, value);
+ break;
+ case USB_RAW_IOCTL_EP0_READ:
+ ret = raw_ioctl_ep0_read(dev, value);
+ break;
+ case USB_RAW_IOCTL_EP_ENABLE:
+ ret = raw_ioctl_ep_enable(dev, value);
+ break;
+ case USB_RAW_IOCTL_EP_DISABLE:
+ ret = raw_ioctl_ep_disable(dev, value);
+ break;
+ case USB_RAW_IOCTL_EP_WRITE:
+ ret = raw_ioctl_ep_write(dev, value);
+ break;
+ case USB_RAW_IOCTL_EP_READ:
+ ret = raw_ioctl_ep_read(dev, value);
+ break;
+ case USB_RAW_IOCTL_CONFIGURE:
+ ret = raw_ioctl_configure(dev, value);
+ break;
+ case USB_RAW_IOCTL_VBUS_DRAW:
+ ret = raw_ioctl_vbus_draw(dev, value);
+ break;
+ case USB_RAW_IOCTL_EPS_INFO:
+ ret = raw_ioctl_eps_info(dev, value);
+ break;
+ case USB_RAW_IOCTL_EP0_STALL:
+ ret = raw_ioctl_ep0_stall(dev, value);
+ break;
+ case USB_RAW_IOCTL_EP_SET_HALT:
+ ret = raw_ioctl_ep_set_clear_halt_wedge(
+ dev, value, true, true);
+ break;
+ case USB_RAW_IOCTL_EP_CLEAR_HALT:
+ ret = raw_ioctl_ep_set_clear_halt_wedge(
+ dev, value, false, true);
+ break;
+ case USB_RAW_IOCTL_EP_SET_WEDGE:
+ ret = raw_ioctl_ep_set_clear_halt_wedge(
+ dev, value, true, false);
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+/*----------------------------------------------------------------------*/
+
+static const struct file_operations raw_fops = {
+ .open = raw_open,
+ .unlocked_ioctl = raw_ioctl,
+ .compat_ioctl = raw_ioctl,
+ .release = raw_release,
+ .llseek = no_llseek,
+};
+
+static struct miscdevice raw_misc_device = {
+ .minor = MISC_DYNAMIC_MINOR,
+ .name = DRIVER_NAME,
+ .fops = &raw_fops,
+};
+
+module_misc_device(raw_misc_device);
diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c
index 87a417d..26b3524 100644
--- a/drivers/usb/gadget/udc/core.c
+++ b/drivers/usb/gadget/udc/core.c
@@ -507,6 +507,43 @@ int usb_gadget_wakeup(struct usb_gadget *gadget)
EXPORT_SYMBOL_GPL(usb_gadget_wakeup);
/**
+ * usb_gsi_ep_op - performs operation on GSI accelerated EP based on EP op code
+ *
+ * Operations such as EP configuration, TRB allocation, StartXfer etc.
+ * See gsi_ep_op for more details.
+ */
+int usb_gsi_ep_op(struct usb_ep *ep,
+ struct usb_gsi_request *req, enum gsi_ep_op op)
+{
+ if (ep && ep->ops && ep->ops->gsi_ep_op)
+ return ep->ops->gsi_ep_op(ep, req, op);
+
+ return -EOPNOTSUPP;
+}
+EXPORT_SYMBOL_GPL(usb_gsi_ep_op);
+
+/**
+ * usb_gadget_func_wakeup - send a function remote wakeup up notification
+ * to the host connected to this gadget
+ * @gadget: controller used to wake up the host
+ * @interface_id: the interface which triggered the remote wakeup event
+ *
+ * Returns zero on success. Otherwise, negative error code is returned.
+ */
+int usb_gadget_func_wakeup(struct usb_gadget *gadget,
+ int interface_id)
+{
+ if (!gadget || (gadget->speed != USB_SPEED_SUPER))
+ return -EOPNOTSUPP;
+
+ if (!gadget->ops || !gadget->ops->func_wakeup)
+ return -EOPNOTSUPP;
+
+ return gadget->ops->func_wakeup(gadget, interface_id);
+}
+EXPORT_SYMBOL_GPL(usb_gadget_func_wakeup);
+
+/**
* usb_gadget_set_selfpowered - sets the device selfpowered feature.
* @gadget:the device being declared as self-powered
*
diff --git a/drivers/usb/gadget/udc/dummy_hcd.c b/drivers/usb/gadget/udc/dummy_hcd.c
index d25d25d..3259899 100644
--- a/drivers/usb/gadget/udc/dummy_hcd.c
+++ b/drivers/usb/gadget/udc/dummy_hcd.c
@@ -187,31 +187,31 @@ static const struct {
USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
/* and now some generic EPs so we have enough in multi config */
- EP_INFO("ep3out",
+ EP_INFO("ep-aout",
USB_EP_CAPS(TYPE_BULK_OR_INT, USB_EP_CAPS_DIR_OUT)),
- EP_INFO("ep4in",
+ EP_INFO("ep-bin",
USB_EP_CAPS(TYPE_BULK_OR_INT, USB_EP_CAPS_DIR_IN)),
- EP_INFO("ep5out",
+ EP_INFO("ep-cout",
USB_EP_CAPS(TYPE_BULK_OR_INT, USB_EP_CAPS_DIR_OUT)),
- EP_INFO("ep6out",
+ EP_INFO("ep-dout",
USB_EP_CAPS(TYPE_BULK_OR_INT, USB_EP_CAPS_DIR_OUT)),
- EP_INFO("ep7in",
+ EP_INFO("ep-ein",
USB_EP_CAPS(TYPE_BULK_OR_INT, USB_EP_CAPS_DIR_IN)),
- EP_INFO("ep8out",
+ EP_INFO("ep-fout",
USB_EP_CAPS(TYPE_BULK_OR_INT, USB_EP_CAPS_DIR_OUT)),
- EP_INFO("ep9in",
+ EP_INFO("ep-gin",
USB_EP_CAPS(TYPE_BULK_OR_INT, USB_EP_CAPS_DIR_IN)),
- EP_INFO("ep10out",
+ EP_INFO("ep-hout",
USB_EP_CAPS(TYPE_BULK_OR_INT, USB_EP_CAPS_DIR_OUT)),
- EP_INFO("ep11out",
+ EP_INFO("ep-iout",
USB_EP_CAPS(TYPE_BULK_OR_INT, USB_EP_CAPS_DIR_OUT)),
- EP_INFO("ep12in",
+ EP_INFO("ep-jin",
USB_EP_CAPS(TYPE_BULK_OR_INT, USB_EP_CAPS_DIR_IN)),
- EP_INFO("ep13out",
+ EP_INFO("ep-kout",
USB_EP_CAPS(TYPE_BULK_OR_INT, USB_EP_CAPS_DIR_OUT)),
- EP_INFO("ep14in",
+ EP_INFO("ep-lin",
USB_EP_CAPS(TYPE_BULK_OR_INT, USB_EP_CAPS_DIR_IN)),
- EP_INFO("ep15out",
+ EP_INFO("ep-mout",
USB_EP_CAPS(TYPE_BULK_OR_INT, USB_EP_CAPS_DIR_OUT)),
#undef EP_INFO
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index fb47caf..dfbf044 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -1837,6 +1837,137 @@ void xhci_free_erst(struct xhci_hcd *xhci, struct xhci_erst *erst)
erst->entries = NULL;
}
+void xhci_handle_sec_intr_events(struct xhci_hcd *xhci, int intr_num)
+{
+ union xhci_trb *erdp_trb, *current_trb;
+ struct xhci_segment *seg;
+ u64 erdp_reg;
+ u32 iman_reg;
+ dma_addr_t deq;
+ unsigned long segment_offset;
+
+ /* disable irq, ack pending interrupt and ack all pending events */
+
+ iman_reg =
+ readl_relaxed(&xhci->sec_ir_set[intr_num]->irq_pending);
+ iman_reg &= ~IMAN_IE;
+ writel_relaxed(iman_reg,
+ &xhci->sec_ir_set[intr_num]->irq_pending);
+ iman_reg =
+ readl_relaxed(&xhci->sec_ir_set[intr_num]->irq_pending);
+ if (iman_reg & IMAN_IP)
+ writel_relaxed(iman_reg,
+ &xhci->sec_ir_set[intr_num]->irq_pending);
+
+ /* last acked event trb is in erdp reg */
+ erdp_reg =
+ xhci_read_64(xhci, &xhci->sec_ir_set[intr_num]->erst_dequeue);
+ deq = (dma_addr_t)(erdp_reg & ~ERST_PTR_MASK);
+ if (!deq) {
+ pr_debug("%s: event ring handling not required\n", __func__);
+ return;
+ }
+
+ seg = xhci->sec_event_ring[intr_num]->first_seg;
+ segment_offset = deq - seg->dma;
+
+ /* find out virtual address of the last acked event trb */
+ erdp_trb = current_trb = &seg->trbs[0] +
+ (segment_offset/sizeof(*current_trb));
+
+ /* read cycle state of the last acked trb to find out CCS */
+ xhci->sec_event_ring[intr_num]->cycle_state =
+ (current_trb->event_cmd.flags & TRB_CYCLE);
+
+ while (1) {
+ /* last trb of the event ring: toggle cycle state */
+ if (current_trb == &seg->trbs[TRBS_PER_SEGMENT - 1]) {
+ xhci->sec_event_ring[intr_num]->cycle_state ^= 1;
+ current_trb = &seg->trbs[0];
+ } else {
+ current_trb++;
+ }
+
+ /* cycle state transition */
+ if ((le32_to_cpu(current_trb->event_cmd.flags) & TRB_CYCLE) !=
+ xhci->sec_event_ring[intr_num]->cycle_state)
+ break;
+ }
+
+ if (erdp_trb != current_trb) {
+ deq =
+ xhci_trb_virt_to_dma(xhci->sec_event_ring[intr_num]->deq_seg,
+ current_trb);
+ if (deq == 0)
+ xhci_warn(xhci,
+ "WARN invalid SW event ring dequeue ptr.\n");
+ /* Update HC event ring dequeue pointer */
+ erdp_reg &= ERST_PTR_MASK;
+ erdp_reg |= ((u64) deq & (u64) ~ERST_PTR_MASK);
+ }
+
+ /* Clear the event handler busy flag (RW1C); event ring is empty. */
+ erdp_reg |= ERST_EHB;
+ xhci_write_64(xhci, erdp_reg,
+ &xhci->sec_ir_set[intr_num]->erst_dequeue);
+}
+
+int xhci_sec_event_ring_cleanup(struct usb_hcd *hcd, unsigned int intr_num)
+{
+ int size;
+ struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+ struct device *dev = xhci_to_hcd(xhci)->self.sysdev;
+
+ if (intr_num >= xhci->max_interrupters) {
+ xhci_err(xhci, "invalid secondary interrupter num %d\n",
+ intr_num);
+ return -EINVAL;
+ }
+
+ size =
+ sizeof(struct xhci_erst_entry)*(xhci->sec_erst[intr_num].num_entries);
+ if (xhci->sec_erst[intr_num].entries) {
+ xhci_handle_sec_intr_events(xhci, intr_num);
+ dma_free_coherent(dev, size, xhci->sec_erst[intr_num].entries,
+ xhci->sec_erst[intr_num].erst_dma_addr);
+ xhci->sec_erst[intr_num].entries = NULL;
+ }
+ xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Freed SEC ERST#%d",
+ intr_num);
+ if (xhci->sec_event_ring[intr_num])
+ xhci_ring_free(xhci, xhci->sec_event_ring[intr_num]);
+
+ xhci->sec_event_ring[intr_num] = NULL;
+ xhci_dbg_trace(xhci, trace_xhci_dbg_init,
+ "Freed sec event ring");
+
+ return 0;
+}
+
+void xhci_event_ring_cleanup(struct xhci_hcd *xhci)
+{
+ unsigned int i;
+
+ /* sec event ring clean up */
+ for (i = 1; i < xhci->max_interrupters; i++)
+ xhci_sec_event_ring_cleanup(xhci_to_hcd(xhci), i);
+
+ kfree(xhci->sec_ir_set);
+ xhci->sec_ir_set = NULL;
+ kfree(xhci->sec_erst);
+ xhci->sec_erst = NULL;
+ kfree(xhci->sec_event_ring);
+ xhci->sec_event_ring = NULL;
+
+ /* primary event ring clean up */
+ xhci_free_erst(xhci, &xhci->erst);
+ xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Freed primary ERST");
+ if (xhci->event_ring)
+ xhci_ring_free(xhci, xhci->event_ring);
+ xhci->event_ring = NULL;
+ xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Freed priamry event ring");
+}
+
void xhci_mem_cleanup(struct xhci_hcd *xhci)
{
struct device *dev = xhci_to_hcd(xhci)->self.sysdev;
@@ -1844,12 +1975,7 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci)
cancel_delayed_work_sync(&xhci->cmd_timer);
- xhci_free_erst(xhci, &xhci->erst);
-
- if (xhci->event_ring)
- xhci_ring_free(xhci, xhci->event_ring);
- xhci->event_ring = NULL;
- xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Freed event ring");
+ xhci_event_ring_cleanup(xhci);
if (xhci->lpm_command)
xhci_free_command(xhci, xhci->lpm_command);
@@ -2095,30 +2221,6 @@ static int xhci_check_trb_in_td_math(struct xhci_hcd *xhci)
return 0;
}
-static void xhci_set_hc_event_deq(struct xhci_hcd *xhci)
-{
- u64 temp;
- dma_addr_t deq;
-
- deq = xhci_trb_virt_to_dma(xhci->event_ring->deq_seg,
- xhci->event_ring->dequeue);
- if (deq == 0 && !in_interrupt())
- xhci_warn(xhci, "WARN something wrong with SW event ring "
- "dequeue ptr.\n");
- /* Update HC event ring dequeue pointer */
- temp = xhci_read_64(xhci, &xhci->ir_set->erst_dequeue);
- temp &= ERST_PTR_MASK;
- /* Don't clear the EHB bit (which is RW1C) because
- * there might be more events to service.
- */
- temp &= ~ERST_EHB;
- xhci_dbg_trace(xhci, trace_xhci_dbg_init,
- "// Write event ring dequeue pointer, "
- "preserving EHB bit");
- xhci_write_64(xhci, ((u64) deq & (u64) ~ERST_PTR_MASK) | temp,
- &xhci->ir_set->erst_dequeue);
-}
-
static void xhci_add_in_port(struct xhci_hcd *xhci, unsigned int num_ports,
__le32 __iomem *addr, int max_caps)
{
@@ -2391,6 +2493,154 @@ static int xhci_setup_port_arrays(struct xhci_hcd *xhci, gfp_t flags)
return 0;
}
+int xhci_event_ring_setup(struct xhci_hcd *xhci, struct xhci_ring **er,
+ struct xhci_intr_reg __iomem *ir_set, struct xhci_erst *erst,
+ unsigned int intr_num, gfp_t flags)
+{
+ dma_addr_t deq;
+ u64 val_64;
+ unsigned int val;
+ int ret;
+
+ *er = xhci_ring_alloc(xhci, ERST_NUM_SEGS, 1, TYPE_EVENT, 0, flags);
+ if (!*er)
+ return -ENOMEM;
+
+ ret = xhci_alloc_erst(xhci, *er, erst, flags);
+ if (ret)
+ return ret;
+
+ xhci_dbg_trace(xhci, trace_xhci_dbg_init,
+ "intr# %d: num segs = %i, virt addr = %pK, dma addr = 0x%llx",
+ intr_num,
+ erst->num_entries,
+ erst->entries,
+ (unsigned long long)erst->erst_dma_addr);
+
+ /* set ERST count with the number of entries in the segment table */
+ val = readl_relaxed(&ir_set->erst_size);
+ val &= ERST_SIZE_MASK;
+ val |= ERST_NUM_SEGS;
+ xhci_dbg_trace(xhci, trace_xhci_dbg_init,
+ "Write ERST size = %i to ir_set %d (some bits preserved)", val,
+ intr_num);
+ writel_relaxed(val, &ir_set->erst_size);
+
+ xhci_dbg_trace(xhci, trace_xhci_dbg_init,
+ "intr# %d: Set ERST entries to point to event ring.",
+ intr_num);
+ /* set the segment table base address */
+ xhci_dbg_trace(xhci, trace_xhci_dbg_init,
+ "Set ERST base address for ir_set %d = 0x%llx",
+ intr_num,
+ (unsigned long long)erst->erst_dma_addr);
+ val_64 = xhci_read_64(xhci, &ir_set->erst_base);
+ val_64 &= ERST_PTR_MASK;
+ val_64 |= (erst->erst_dma_addr & (u64) ~ERST_PTR_MASK);
+ xhci_write_64(xhci, val_64, &ir_set->erst_base);
+
+ /* Set the event ring dequeue address */
+ deq = xhci_trb_virt_to_dma((*er)->deq_seg, (*er)->dequeue);
+ if (deq == 0 && !in_interrupt())
+ xhci_warn(xhci,
+ "intr# %d:WARN something wrong with SW event ring deq ptr.\n",
+ intr_num);
+ /* Update HC event ring dequeue pointer */
+ val_64 = xhci_read_64(xhci, &ir_set->erst_dequeue);
+ val_64 &= ERST_PTR_MASK;
+ /* Don't clear the EHB bit (which is RW1C) because
+ * there might be more events to service.
+ */
+ val_64 &= ~ERST_EHB;
+ xhci_dbg_trace(xhci, trace_xhci_dbg_init,
+ "intr# %d:Write event ring dequeue pointer, preserving EHB bit",
+ intr_num);
+ xhci_write_64(xhci, ((u64) deq & (u64) ~ERST_PTR_MASK) | val_64,
+ &ir_set->erst_dequeue);
+ xhci_dbg_trace(xhci, trace_xhci_dbg_init,
+ "Wrote ERST address to ir_set %d.", intr_num);
+
+ return 0;
+}
+
+int xhci_sec_event_ring_setup(struct usb_hcd *hcd, unsigned int intr_num)
+{
+ int ret;
+ struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+
+ if ((xhci->xhc_state & XHCI_STATE_HALTED) || !xhci->sec_ir_set
+ || !xhci->sec_event_ring || !xhci->sec_erst ||
+ intr_num >= xhci->max_interrupters) {
+ xhci_err(xhci,
+ "%s:state %x ir_set %pK evt_ring %pK erst %pK intr# %d\n",
+ __func__, xhci->xhc_state, xhci->sec_ir_set,
+ xhci->sec_event_ring, xhci->sec_erst, intr_num);
+ return -EINVAL;
+ }
+
+ if (xhci->sec_event_ring && xhci->sec_event_ring[intr_num]
+ && xhci->sec_event_ring[intr_num]->first_seg)
+ goto done;
+
+ xhci->sec_ir_set[intr_num] = &xhci->run_regs->ir_set[intr_num];
+ ret = xhci_event_ring_setup(xhci,
+ &xhci->sec_event_ring[intr_num],
+ xhci->sec_ir_set[intr_num],
+ &xhci->sec_erst[intr_num],
+ intr_num, GFP_KERNEL);
+ if (ret) {
+ xhci_err(xhci, "sec event ring setup failed inter#%d\n",
+ intr_num);
+ return ret;
+ }
+done:
+ return 0;
+}
+
+int xhci_event_ring_init(struct xhci_hcd *xhci, gfp_t flags)
+{
+ int ret = 0;
+
+ /* primary + secondary */
+ xhci->max_interrupters = HCS_MAX_INTRS(xhci->hcs_params1);
+
+ xhci_dbg_trace(xhci, trace_xhci_dbg_init,
+ "// Allocating primary event ring");
+
+ /* Set ir_set to interrupt register set 0 */
+ xhci->ir_set = &xhci->run_regs->ir_set[0];
+ ret = xhci_event_ring_setup(xhci, &xhci->event_ring, xhci->ir_set,
+ &xhci->erst, 0, flags);
+ if (ret) {
+ xhci_err(xhci, "failed to setup primary event ring\n");
+ goto fail;
+ }
+
+ xhci_dbg_trace(xhci, trace_xhci_dbg_init,
+ "// Allocating sec event ring related pointers");
+
+ xhci->sec_ir_set = kcalloc(xhci->max_interrupters,
+ sizeof(*xhci->sec_ir_set), flags);
+ if (!xhci->sec_ir_set) {
+ ret = -ENOMEM;
+ goto fail;
+ }
+
+ xhci->sec_event_ring = kcalloc(xhci->max_interrupters,
+ sizeof(*xhci->sec_event_ring), flags);
+ if (!xhci->sec_event_ring) {
+ ret = -ENOMEM;
+ goto fail;
+ }
+
+ xhci->sec_erst = kcalloc(xhci->max_interrupters,
+ sizeof(*xhci->sec_erst), flags);
+ if (!xhci->sec_erst)
+ ret = -ENOMEM;
+fail:
+ return ret;
+}
+
int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
{
dma_addr_t dma;
@@ -2398,7 +2648,7 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
unsigned int val, val2;
u64 val_64;
u32 page_size, temp;
- int i, ret;
+ int i;
INIT_LIST_HEAD(&xhci->cmd_list);
@@ -2519,50 +2769,17 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
"// Doorbell array is located at offset 0x%x"
" from cap regs base addr", val);
xhci->dba = (void __iomem *) xhci->cap_regs + val;
- /* Set ir_set to interrupt register set 0 */
- xhci->ir_set = &xhci->run_regs->ir_set[0];
/*
* Event ring setup: Allocate a normal ring, but also setup
* the event ring segment table (ERST). Section 4.9.3.
*/
- xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Allocating event ring");
- xhci->event_ring = xhci_ring_alloc(xhci, ERST_NUM_SEGS, 1, TYPE_EVENT,
- 0, flags);
- if (!xhci->event_ring)
+ if (xhci_event_ring_init(xhci, GFP_KERNEL))
goto fail;
+
if (xhci_check_trb_in_td_math(xhci) < 0)
goto fail;
- ret = xhci_alloc_erst(xhci, xhci->event_ring, &xhci->erst, flags);
- if (ret)
- goto fail;
-
- /* set ERST count with the number of entries in the segment table */
- val = readl(&xhci->ir_set->erst_size);
- val &= ERST_SIZE_MASK;
- val |= ERST_NUM_SEGS;
- xhci_dbg_trace(xhci, trace_xhci_dbg_init,
- "// Write ERST size = %i to ir_set 0 (some bits preserved)",
- val);
- writel(val, &xhci->ir_set->erst_size);
-
- xhci_dbg_trace(xhci, trace_xhci_dbg_init,
- "// Set ERST entries to point to event ring.");
- /* set the segment table base address */
- xhci_dbg_trace(xhci, trace_xhci_dbg_init,
- "// Set ERST base address for ir_set 0 = 0x%llx",
- (unsigned long long)xhci->erst.erst_dma_addr);
- val_64 = xhci_read_64(xhci, &xhci->ir_set->erst_base);
- val_64 &= ERST_PTR_MASK;
- val_64 |= (xhci->erst.erst_dma_addr & (u64) ~ERST_PTR_MASK);
- xhci_write_64(xhci, val_64, &xhci->ir_set->erst_base);
-
- /* Set the event ring dequeue address */
- xhci_set_hc_event_deq(xhci);
- xhci_dbg_trace(xhci, trace_xhci_dbg_init,
- "Wrote ERST address to ir_set 0.");
-
/*
* XXX: Might need to set the Interrupter Moderation Register to
* something other than the default (~1ms minimum between interrupts).
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index bebab0e..78d3bd1 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -5218,6 +5218,136 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks)
}
EXPORT_SYMBOL_GPL(xhci_gen_setup);
+static phys_addr_t xhci_get_sec_event_ring_phys_addr(struct usb_hcd *hcd,
+ unsigned int intr_num, dma_addr_t *dma)
+{
+ struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+ struct device *dev = hcd->self.sysdev;
+ struct sg_table sgt;
+ phys_addr_t pa;
+
+ if (intr_num > xhci->max_interrupters) {
+ xhci_err(xhci, "intr num %d > max intrs %d\n", intr_num,
+ xhci->max_interrupters);
+ return 0;
+ }
+
+ if (!(xhci->xhc_state & XHCI_STATE_HALTED) &&
+ xhci->sec_event_ring && xhci->sec_event_ring[intr_num]
+ && xhci->sec_event_ring[intr_num]->first_seg) {
+
+ dma_get_sgtable(dev, &sgt,
+ xhci->sec_event_ring[intr_num]->first_seg->trbs,
+ xhci->sec_event_ring[intr_num]->first_seg->dma,
+ TRB_SEGMENT_SIZE);
+
+ *dma = xhci->sec_event_ring[intr_num]->first_seg->dma;
+
+ pa = page_to_phys(sg_page(sgt.sgl));
+ sg_free_table(&sgt);
+
+ return pa;
+ }
+
+ return 0;
+}
+
+static phys_addr_t xhci_get_xfer_ring_phys_addr(struct usb_hcd *hcd,
+ struct usb_device *udev, struct usb_host_endpoint *ep, dma_addr_t *dma)
+{
+ int ret;
+ unsigned int ep_index;
+ struct xhci_virt_device *virt_dev;
+ struct device *dev = hcd->self.sysdev;
+ struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+ struct sg_table sgt;
+ phys_addr_t pa;
+
+ ret = xhci_check_args(hcd, udev, ep, 1, true, __func__);
+ if (ret <= 0) {
+ xhci_err(xhci, "%s: invalid args\n", __func__);
+ return 0;
+ }
+
+ virt_dev = xhci->devs[udev->slot_id];
+ ep_index = xhci_get_endpoint_index(&ep->desc);
+
+ if (virt_dev->eps[ep_index].ring &&
+ virt_dev->eps[ep_index].ring->first_seg) {
+
+ dma_get_sgtable(dev, &sgt,
+ virt_dev->eps[ep_index].ring->first_seg->trbs,
+ virt_dev->eps[ep_index].ring->first_seg->dma,
+ TRB_SEGMENT_SIZE);
+
+ *dma = virt_dev->eps[ep_index].ring->first_seg->dma;
+
+ pa = page_to_phys(sg_page(sgt.sgl));
+ sg_free_table(&sgt);
+
+ return pa;
+ }
+
+ return 0;
+}
+
+static int xhci_stop_endpoint(struct usb_hcd *hcd,
+ struct usb_device *udev, struct usb_host_endpoint *ep)
+{
+ struct xhci_hcd *xhci;
+ unsigned int ep_index;
+ struct xhci_virt_device *virt_dev;
+ struct xhci_command *cmd;
+ unsigned long flags;
+ int ret = 0;
+
+ if (!hcd || !udev || !ep)
+ return -EINVAL;
+
+ xhci = hcd_to_xhci(hcd);
+ cmd = xhci_alloc_command(xhci, true, GFP_NOIO);
+ if (!cmd)
+ return -ENOMEM;
+
+ spin_lock_irqsave(&xhci->lock, flags);
+ virt_dev = xhci->devs[udev->slot_id];
+ if (!virt_dev) {
+ ret = -ENODEV;
+ goto err;
+ }
+
+ ep_index = xhci_get_endpoint_index(&ep->desc);
+ if (virt_dev->eps[ep_index].ring &&
+ virt_dev->eps[ep_index].ring->dequeue) {
+ ret = xhci_queue_stop_endpoint(xhci, cmd, udev->slot_id,
+ ep_index, 0);
+ if (ret)
+ goto err;
+
+ xhci_ring_cmd_db(xhci);
+ spin_unlock_irqrestore(&xhci->lock, flags);
+
+ /* Wait for stop endpoint command to finish */
+ wait_for_completion(cmd->completion);
+
+ if (cmd->status == COMP_COMMAND_ABORTED ||
+ cmd->status == COMP_STOPPED) {
+ xhci_warn(xhci,
+ "stop endpoint command timeout for ep%d%s\n",
+ usb_endpoint_num(&ep->desc),
+ usb_endpoint_dir_in(&ep->desc) ? "in" : "out");
+ ret = -ETIME;
+ }
+ goto free_cmd;
+ }
+
+err:
+ spin_unlock_irqrestore(&xhci->lock, flags);
+free_cmd:
+ xhci_free_command(xhci, cmd);
+ return ret;
+}
+
static const struct hc_driver xhci_hc_driver = {
.description = "xhci-hcd",
.product_desc = "xHCI Host Controller",
@@ -5278,6 +5408,11 @@ static const struct hc_driver xhci_hc_driver = {
.enable_usb3_lpm_timeout = xhci_enable_usb3_lpm_timeout,
.disable_usb3_lpm_timeout = xhci_disable_usb3_lpm_timeout,
.find_raw_port_number = xhci_find_raw_port_number,
+ .sec_event_ring_setup = xhci_sec_event_ring_setup,
+ .sec_event_ring_cleanup = xhci_sec_event_ring_cleanup,
+ .get_sec_event_ring_phys_addr = xhci_get_sec_event_ring_phys_addr,
+ .get_xfer_ring_phys_addr = xhci_get_xfer_ring_phys_addr,
+ .stop_endpoint = xhci_stop_endpoint,
};
void xhci_init_driver(struct hc_driver *drv,
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index dfc9147..fce1ac0 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1742,6 +1742,10 @@ struct xhci_hcd {
struct xhci_doorbell_array __iomem *dba;
/* Our HCD's current interrupter register set */
struct xhci_intr_reg __iomem *ir_set;
+ /* secondary interrupter */
+ struct xhci_intr_reg __iomem **sec_ir_set;
+
+ int core_id;
/* Cached register copies of read-only HC data */
__u32 hcs_params1;
@@ -1785,6 +1789,11 @@ struct xhci_hcd {
struct xhci_command *current_cmd;
struct xhci_ring *event_ring;
struct xhci_erst erst;
+
+ /* secondary event ring and erst */
+ struct xhci_ring **sec_event_ring;
+ struct xhci_erst *sec_erst;
+
/* Scratchpad */
struct xhci_scratchpad *scratchpad;
/* Store LPM test failed devices' information */
@@ -2054,6 +2063,8 @@ struct xhci_container_ctx *xhci_alloc_container_ctx(struct xhci_hcd *xhci,
int type, gfp_t flags);
void xhci_free_container_ctx(struct xhci_hcd *xhci,
struct xhci_container_ctx *ctx);
+int xhci_sec_event_ring_setup(struct usb_hcd *hcd, unsigned int intr_num);
+int xhci_sec_event_ring_cleanup(struct usb_hcd *hcd, unsigned int intr_num);
/* xHCI host controller glue */
typedef void (*xhci_get_quirks_t)(struct device *, struct xhci_hcd *);
diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig
index c3dae7d..c05f37a 100644
--- a/drivers/usb/musb/Kconfig
+++ b/drivers/usb/musb/Kconfig
@@ -115,6 +115,13 @@
depends on USB_MUSB_GADGET
depends on USB_OTG_BLACKLIST_HUB
+config USB_MUSB_MEDIATEK
+ tristate "MediaTek platforms"
+ depends on ARCH_MEDIATEK || COMPILE_TEST
+ depends on NOP_USB_XCEIV
+ depends on GENERIC_PHY
+ select USB_ROLE_SWITCH
+
config USB_MUSB_AM335X_CHILD
tristate
@@ -141,7 +148,7 @@
config USB_INVENTRA_DMA
bool 'Inventra'
- depends on USB_MUSB_OMAP2PLUS
+ depends on USB_MUSB_OMAP2PLUS || USB_MUSB_MEDIATEK
help
Enable DMA transfers using Mentor's engine.
diff --git a/drivers/usb/musb/Makefile b/drivers/usb/musb/Makefile
index 3a88c79..63d82d0 100644
--- a/drivers/usb/musb/Makefile
+++ b/drivers/usb/musb/Makefile
@@ -24,6 +24,7 @@
obj-$(CONFIG_USB_MUSB_UX500) += ux500.o
obj-$(CONFIG_USB_MUSB_JZ4740) += jz4740.o
obj-$(CONFIG_USB_MUSB_SUNXI) += sunxi.o
+obj-$(CONFIG_USB_MUSB_MEDIATEK) += mediatek.o
obj-$(CONFIG_USB_MUSB_AM335X_CHILD) += musb_am335x.o
diff --git a/drivers/usb/musb/mediatek.c b/drivers/usb/musb/mediatek.c
new file mode 100644
index 0000000..eaf6bff
--- /dev/null
+++ b/drivers/usb/musb/mediatek.c
@@ -0,0 +1,587 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 MediaTek Inc.
+ *
+ * Author:
+ * Min Guo <min.guo@mediatek.com>
+ * Yonglong Wu <yonglong.wu@mediatek.com>
+ */
+
+#include <linux/clk.h>
+#include <linux/dma-mapping.h>
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/usb/role.h>
+#include <linux/usb/usb_phy_generic.h>
+#include "musb_core.h"
+#include "musb_dma.h"
+
+#define USB_L1INTS 0x00a0
+#define USB_L1INTM 0x00a4
+#define MTK_MUSB_TXFUNCADDR 0x0480
+
+/* MediaTek controller toggle enable and status reg */
+#define MUSB_RXTOG 0x80
+#define MUSB_RXTOGEN 0x82
+#define MUSB_TXTOG 0x84
+#define MUSB_TXTOGEN 0x86
+#define MTK_TOGGLE_EN GENMASK(15, 0)
+
+#define TX_INT_STATUS BIT(0)
+#define RX_INT_STATUS BIT(1)
+#define USBCOM_INT_STATUS BIT(2)
+#define DMA_INT_STATUS BIT(3)
+
+#define DMA_INTR_STATUS_MSK GENMASK(7, 0)
+#define DMA_INTR_UNMASK_SET_MSK GENMASK(31, 24)
+
+struct mtk_glue {
+ struct device *dev;
+ struct musb *musb;
+ struct platform_device *musb_pdev;
+ struct platform_device *usb_phy;
+ struct phy *phy;
+ struct usb_phy *xceiv;
+ enum phy_mode phy_mode;
+ struct clk *main;
+ struct clk *mcu;
+ struct clk *univpll;
+ enum usb_role role;
+ struct usb_role_switch *role_sw;
+};
+
+static int mtk_musb_clks_get(struct mtk_glue *glue)
+{
+ struct device *dev = glue->dev;
+
+ glue->main = devm_clk_get(dev, "main");
+ if (IS_ERR(glue->main)) {
+ dev_err(dev, "fail to get main clock\n");
+ return PTR_ERR(glue->main);
+ }
+
+ glue->mcu = devm_clk_get(dev, "mcu");
+ if (IS_ERR(glue->mcu)) {
+ dev_err(dev, "fail to get mcu clock\n");
+ return PTR_ERR(glue->mcu);
+ }
+
+ glue->univpll = devm_clk_get(dev, "univpll");
+ if (IS_ERR(glue->univpll)) {
+ dev_err(dev, "fail to get univpll clock\n");
+ return PTR_ERR(glue->univpll);
+ }
+
+ return 0;
+}
+
+static int mtk_musb_clks_enable(struct mtk_glue *glue)
+{
+ int ret;
+
+ ret = clk_prepare_enable(glue->main);
+ if (ret) {
+ dev_err(glue->dev, "failed to enable main clock\n");
+ goto err_main_clk;
+ }
+
+ ret = clk_prepare_enable(glue->mcu);
+ if (ret) {
+ dev_err(glue->dev, "failed to enable mcu clock\n");
+ goto err_mcu_clk;
+ }
+
+ ret = clk_prepare_enable(glue->univpll);
+ if (ret) {
+ dev_err(glue->dev, "failed to enable univpll clock\n");
+ goto err_univpll_clk;
+ }
+
+ return 0;
+
+err_univpll_clk:
+ clk_disable_unprepare(glue->mcu);
+err_mcu_clk:
+ clk_disable_unprepare(glue->main);
+err_main_clk:
+ return ret;
+}
+
+static void mtk_musb_clks_disable(struct mtk_glue *glue)
+{
+ clk_disable_unprepare(glue->univpll);
+ clk_disable_unprepare(glue->mcu);
+ clk_disable_unprepare(glue->main);
+}
+
+static int musb_usb_role_sx_set(struct device *dev, enum usb_role role)
+{
+ struct mtk_glue *glue = dev_get_drvdata(dev);
+ struct musb *musb = glue->musb;
+ u8 devctl = readb(musb->mregs + MUSB_DEVCTL);
+ enum usb_role new_role;
+
+ if (role == glue->role)
+ return 0;
+
+ switch (role) {
+ case USB_ROLE_HOST:
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
+ glue->phy_mode = PHY_MODE_USB_HOST;
+ new_role = USB_ROLE_HOST;
+ if (glue->role == USB_ROLE_NONE)
+ phy_power_on(glue->phy);
+
+ devctl |= MUSB_DEVCTL_SESSION;
+ musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
+ MUSB_HST_MODE(musb);
+ break;
+ case USB_ROLE_DEVICE:
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
+ glue->phy_mode = PHY_MODE_USB_DEVICE;
+ new_role = USB_ROLE_DEVICE;
+ devctl &= ~MUSB_DEVCTL_SESSION;
+ musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
+ if (glue->role == USB_ROLE_NONE)
+ phy_power_on(glue->phy);
+
+ MUSB_DEV_MODE(musb);
+ break;
+ case USB_ROLE_NONE:
+ glue->phy_mode = PHY_MODE_USB_OTG;
+ new_role = USB_ROLE_NONE;
+ devctl &= ~MUSB_DEVCTL_SESSION;
+ musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
+ if (glue->role != USB_ROLE_NONE)
+ phy_power_off(glue->phy);
+
+ break;
+ default:
+ dev_err(glue->dev, "Invalid State\n");
+ return -EINVAL;
+ }
+
+ glue->role = new_role;
+ phy_set_mode(glue->phy, glue->phy_mode);
+
+ return 0;
+}
+
+static enum usb_role musb_usb_role_sx_get(struct device *dev)
+{
+ struct mtk_glue *glue = dev_get_drvdata(dev);
+
+ return glue->role;
+}
+
+static int mtk_otg_switch_init(struct mtk_glue *glue)
+{
+ struct usb_role_switch_desc role_sx_desc = { 0 };
+
+ role_sx_desc.set = musb_usb_role_sx_set;
+ role_sx_desc.get = musb_usb_role_sx_get;
+ glue->role_sw = usb_role_switch_register(glue->dev, &role_sx_desc);
+
+ return PTR_ERR_OR_ZERO(glue->role_sw);
+}
+
+static void mtk_otg_switch_exit(struct mtk_glue *glue)
+{
+ return usb_role_switch_unregister(glue->role_sw);
+}
+
+static irqreturn_t generic_interrupt(int irq, void *__hci)
+{
+ unsigned long flags;
+ irqreturn_t retval = IRQ_NONE;
+ struct musb *musb = __hci;
+
+ spin_lock_irqsave(&musb->lock, flags);
+ musb->int_usb = musb_clearb(musb->mregs, MUSB_INTRUSB);
+ musb->int_rx = musb_clearw(musb->mregs, MUSB_INTRRX);
+ musb->int_tx = musb_clearw(musb->mregs, MUSB_INTRTX);
+
+ if ((musb->int_usb & MUSB_INTR_RESET) && !is_host_active(musb)) {
+ /* ep0 FADDR must be 0 when (re)entering peripheral mode */
+ musb_ep_select(musb->mregs, 0);
+ musb_writeb(musb->mregs, MUSB_FADDR, 0);
+ }
+
+ if (musb->int_usb || musb->int_tx || musb->int_rx)
+ retval = musb_interrupt(musb);
+
+ spin_unlock_irqrestore(&musb->lock, flags);
+
+ return retval;
+}
+
+static irqreturn_t mtk_musb_interrupt(int irq, void *dev_id)
+{
+ irqreturn_t retval = IRQ_NONE;
+ struct musb *musb = (struct musb *)dev_id;
+ u32 l1_ints;
+
+ l1_ints = musb_readl(musb->mregs, USB_L1INTS) &
+ musb_readl(musb->mregs, USB_L1INTM);
+
+ if (l1_ints & (TX_INT_STATUS | RX_INT_STATUS | USBCOM_INT_STATUS))
+ retval = generic_interrupt(irq, musb);
+
+#if defined(CONFIG_USB_INVENTRA_DMA)
+ if (l1_ints & DMA_INT_STATUS)
+ retval = dma_controller_irq(irq, musb->dma_controller);
+#endif
+ return retval;
+}
+
+static u32 mtk_musb_busctl_offset(u8 epnum, u16 offset)
+{
+ return MTK_MUSB_TXFUNCADDR + offset + 8 * epnum;
+}
+
+static u8 mtk_musb_clearb(void __iomem *addr, unsigned int offset)
+{
+ u8 data;
+
+ /* W1C */
+ data = musb_readb(addr, offset);
+ musb_writeb(addr, offset, data);
+ return data;
+}
+
+static u16 mtk_musb_clearw(void __iomem *addr, unsigned int offset)
+{
+ u16 data;
+
+ /* W1C */
+ data = musb_readw(addr, offset);
+ musb_writew(addr, offset, data);
+ return data;
+}
+
+static int mtk_musb_set_mode(struct musb *musb, u8 mode)
+{
+ struct device *dev = musb->controller;
+ struct mtk_glue *glue = dev_get_drvdata(dev->parent);
+ enum phy_mode new_mode;
+ enum usb_role new_role;
+
+ switch (mode) {
+ case MUSB_HOST:
+ new_mode = PHY_MODE_USB_HOST;
+ new_role = USB_ROLE_HOST;
+ break;
+ case MUSB_PERIPHERAL:
+ new_mode = PHY_MODE_USB_DEVICE;
+ new_role = USB_ROLE_DEVICE;
+ break;
+ case MUSB_OTG:
+ new_mode = PHY_MODE_USB_OTG;
+ new_role = USB_ROLE_NONE;
+ break;
+ default:
+ dev_err(glue->dev, "Invalid mode request\n");
+ return -EINVAL;
+ }
+
+ if (glue->phy_mode == new_mode)
+ return 0;
+
+ if (musb->port_mode != MUSB_OTG) {
+ dev_err(glue->dev, "Does not support changing modes\n");
+ return -EINVAL;
+ }
+
+ glue->role = new_role;
+ musb_usb_role_sx_set(dev, glue->role);
+ return 0;
+}
+
+static int mtk_musb_init(struct musb *musb)
+{
+ struct device *dev = musb->controller;
+ struct mtk_glue *glue = dev_get_drvdata(dev->parent);
+ int ret;
+
+ glue->musb = musb;
+ musb->phy = glue->phy;
+ musb->xceiv = glue->xceiv;
+ musb->is_host = false;
+ musb->isr = mtk_musb_interrupt;
+
+ /* Set TX/RX toggle enable */
+ musb_writew(musb->mregs, MUSB_TXTOGEN, MTK_TOGGLE_EN);
+ musb_writew(musb->mregs, MUSB_RXTOGEN, MTK_TOGGLE_EN);
+
+ if (musb->port_mode == MUSB_OTG) {
+ ret = mtk_otg_switch_init(glue);
+ if (ret)
+ return ret;
+ }
+
+ ret = phy_init(glue->phy);
+ if (ret)
+ goto err_phy_init;
+
+ ret = phy_power_on(glue->phy);
+ if (ret)
+ goto err_phy_power_on;
+
+ phy_set_mode(glue->phy, glue->phy_mode);
+
+#if defined(CONFIG_USB_INVENTRA_DMA)
+ musb_writel(musb->mregs, MUSB_HSDMA_INTR,
+ DMA_INTR_STATUS_MSK | DMA_INTR_UNMASK_SET_MSK);
+#endif
+ musb_writel(musb->mregs, USB_L1INTM, TX_INT_STATUS | RX_INT_STATUS |
+ USBCOM_INT_STATUS | DMA_INT_STATUS);
+ return 0;
+
+err_phy_power_on:
+ phy_exit(glue->phy);
+err_phy_init:
+ mtk_otg_switch_exit(glue);
+ return ret;
+}
+
+static u16 mtk_musb_get_toggle(struct musb_qh *qh, int is_out)
+{
+ struct musb *musb = qh->hw_ep->musb;
+ u8 epnum = qh->hw_ep->epnum;
+ u16 toggle;
+
+ toggle = musb_readw(musb->mregs, is_out ? MUSB_TXTOG : MUSB_RXTOG);
+ return toggle & (1 << epnum);
+}
+
+static u16 mtk_musb_set_toggle(struct musb_qh *qh, int is_out, struct urb *urb)
+{
+ struct musb *musb = qh->hw_ep->musb;
+ u8 epnum = qh->hw_ep->epnum;
+ u16 value, toggle;
+
+ toggle = usb_gettoggle(urb->dev, qh->epnum, is_out);
+
+ if (is_out) {
+ value = musb_readw(musb->mregs, MUSB_TXTOG);
+ value |= toggle << epnum;
+ musb_writew(musb->mregs, MUSB_TXTOG, value);
+ } else {
+ value = musb_readw(musb->mregs, MUSB_RXTOG);
+ value |= toggle << epnum;
+ musb_writew(musb->mregs, MUSB_RXTOG, value);
+ }
+
+ return 0;
+}
+
+static int mtk_musb_exit(struct musb *musb)
+{
+ struct device *dev = musb->controller;
+ struct mtk_glue *glue = dev_get_drvdata(dev->parent);
+
+ mtk_otg_switch_exit(glue);
+ phy_power_off(glue->phy);
+ phy_exit(glue->phy);
+ mtk_musb_clks_disable(glue);
+
+ pm_runtime_put_sync(dev);
+ pm_runtime_disable(dev);
+ return 0;
+}
+
+static const struct musb_platform_ops mtk_musb_ops = {
+ .quirks = MUSB_DMA_INVENTRA,
+ .init = mtk_musb_init,
+ .get_toggle = mtk_musb_get_toggle,
+ .set_toggle = mtk_musb_set_toggle,
+ .exit = mtk_musb_exit,
+#ifdef CONFIG_USB_INVENTRA_DMA
+ .dma_init = musbhs_dma_controller_create_noirq,
+ .dma_exit = musbhs_dma_controller_destroy,
+#endif
+ .clearb = mtk_musb_clearb,
+ .clearw = mtk_musb_clearw,
+ .busctl_offset = mtk_musb_busctl_offset,
+ .set_mode = mtk_musb_set_mode,
+};
+
+#define MTK_MUSB_MAX_EP_NUM 8
+#define MTK_MUSB_RAM_BITS 11
+
+static struct musb_fifo_cfg mtk_musb_mode_cfg[] = {
+ { .hw_ep_num = 1, .style = FIFO_TX, .maxpacket = 512, },
+ { .hw_ep_num = 1, .style = FIFO_RX, .maxpacket = 512, },
+ { .hw_ep_num = 2, .style = FIFO_TX, .maxpacket = 512, },
+ { .hw_ep_num = 2, .style = FIFO_RX, .maxpacket = 512, },
+ { .hw_ep_num = 3, .style = FIFO_TX, .maxpacket = 512, },
+ { .hw_ep_num = 3, .style = FIFO_RX, .maxpacket = 512, },
+ { .hw_ep_num = 4, .style = FIFO_TX, .maxpacket = 512, },
+ { .hw_ep_num = 4, .style = FIFO_RX, .maxpacket = 512, },
+ { .hw_ep_num = 5, .style = FIFO_TX, .maxpacket = 512, },
+ { .hw_ep_num = 5, .style = FIFO_RX, .maxpacket = 512, },
+ { .hw_ep_num = 6, .style = FIFO_TX, .maxpacket = 1024, },
+ { .hw_ep_num = 6, .style = FIFO_RX, .maxpacket = 1024, },
+ { .hw_ep_num = 7, .style = FIFO_TX, .maxpacket = 512, },
+ { .hw_ep_num = 7, .style = FIFO_RX, .maxpacket = 64, },
+};
+
+static const struct musb_hdrc_config mtk_musb_hdrc_config = {
+ .fifo_cfg = mtk_musb_mode_cfg,
+ .fifo_cfg_size = ARRAY_SIZE(mtk_musb_mode_cfg),
+ .multipoint = true,
+ .dyn_fifo = true,
+ .num_eps = MTK_MUSB_MAX_EP_NUM,
+ .ram_bits = MTK_MUSB_RAM_BITS,
+};
+
+static const struct platform_device_info mtk_dev_info = {
+ .name = "musb-hdrc",
+ .id = PLATFORM_DEVID_AUTO,
+ .dma_mask = DMA_BIT_MASK(32),
+};
+
+static int mtk_musb_probe(struct platform_device *pdev)
+{
+ struct musb_hdrc_platform_data *pdata;
+ struct mtk_glue *glue;
+ struct platform_device_info pinfo;
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
+ int ret = -ENOMEM;
+
+ glue = devm_kzalloc(dev, sizeof(*glue), GFP_KERNEL);
+ if (!glue)
+ return -ENOMEM;
+
+ glue->dev = dev;
+ pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
+
+ ret = of_platform_populate(np, NULL, NULL, dev);
+ if (ret) {
+ dev_err(dev, "failed to create child devices at %p\n", np);
+ return ret;
+ }
+
+ ret = mtk_musb_clks_get(glue);
+ if (ret)
+ return ret;
+
+ pdata->config = &mtk_musb_hdrc_config;
+ pdata->platform_ops = &mtk_musb_ops;
+ pdata->mode = usb_get_dr_mode(dev);
+
+ if (IS_ENABLED(CONFIG_USB_MUSB_HOST))
+ pdata->mode = USB_DR_MODE_HOST;
+ else if (IS_ENABLED(CONFIG_USB_MUSB_GADGET))
+ pdata->mode = USB_DR_MODE_PERIPHERAL;
+
+ switch (pdata->mode) {
+ case USB_DR_MODE_HOST:
+ glue->phy_mode = PHY_MODE_USB_HOST;
+ glue->role = USB_ROLE_HOST;
+ break;
+ case USB_DR_MODE_PERIPHERAL:
+ glue->phy_mode = PHY_MODE_USB_DEVICE;
+ glue->role = USB_ROLE_DEVICE;
+ break;
+ case USB_DR_MODE_OTG:
+ glue->phy_mode = PHY_MODE_USB_OTG;
+ glue->role = USB_ROLE_NONE;
+ break;
+ default:
+ dev_err(&pdev->dev, "Error 'dr_mode' property\n");
+ return -EINVAL;
+ }
+
+ glue->phy = devm_of_phy_get_by_index(dev, np, 0);
+ if (IS_ERR(glue->phy)) {
+ dev_err(dev, "fail to getting phy %ld\n",
+ PTR_ERR(glue->phy));
+ return PTR_ERR(glue->phy);
+ }
+
+ glue->usb_phy = usb_phy_generic_register();
+ if (IS_ERR(glue->usb_phy)) {
+ dev_err(dev, "fail to registering usb-phy %ld\n",
+ PTR_ERR(glue->usb_phy));
+ return PTR_ERR(glue->usb_phy);
+ }
+
+ glue->xceiv = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
+ if (IS_ERR(glue->xceiv)) {
+ dev_err(dev, "fail to getting usb-phy %d\n", ret);
+ ret = PTR_ERR(glue->xceiv);
+ goto err_unregister_usb_phy;
+ }
+
+ platform_set_drvdata(pdev, glue);
+ pm_runtime_enable(dev);
+ pm_runtime_get_sync(dev);
+
+ ret = mtk_musb_clks_enable(glue);
+ if (ret)
+ goto err_enable_clk;
+
+ pinfo = mtk_dev_info;
+ pinfo.parent = dev;
+ pinfo.res = pdev->resource;
+ pinfo.num_res = pdev->num_resources;
+ pinfo.data = pdata;
+ pinfo.size_data = sizeof(*pdata);
+
+ glue->musb_pdev = platform_device_register_full(&pinfo);
+ if (IS_ERR(glue->musb_pdev)) {
+ ret = PTR_ERR(glue->musb_pdev);
+ dev_err(dev, "failed to register musb device: %d\n", ret);
+ goto err_device_register;
+ }
+
+ return 0;
+
+err_device_register:
+ mtk_musb_clks_disable(glue);
+err_enable_clk:
+ pm_runtime_put_sync(dev);
+ pm_runtime_disable(dev);
+err_unregister_usb_phy:
+ usb_phy_generic_unregister(glue->usb_phy);
+ return ret;
+}
+
+static int mtk_musb_remove(struct platform_device *pdev)
+{
+ struct mtk_glue *glue = platform_get_drvdata(pdev);
+ struct platform_device *usb_phy = glue->usb_phy;
+
+ platform_device_unregister(glue->musb_pdev);
+ usb_phy_generic_unregister(usb_phy);
+
+ return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id mtk_musb_match[] = {
+ {.compatible = "mediatek,mtk-musb",},
+ {},
+};
+MODULE_DEVICE_TABLE(of, mtk_musb_match);
+#endif
+
+static struct platform_driver mtk_musb_driver = {
+ .probe = mtk_musb_probe,
+ .remove = mtk_musb_remove,
+ .driver = {
+ .name = "musb-mtk",
+ .of_match_table = of_match_ptr(mtk_musb_match),
+ },
+};
+
+module_platform_driver(mtk_musb_driver);
+
+MODULE_DESCRIPTION("MediaTek MUSB Glue Layer");
+MODULE_AUTHOR("Min Guo <min.guo@mediatek.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 2a87405..b642cb3 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -246,7 +246,7 @@ static u32 musb_default_busctl_offset(u8 epnum, u16 offset)
return 0x80 + (0x08 * epnum) + offset;
}
-static u8 musb_default_readb(const void __iomem *addr, unsigned offset)
+static u8 musb_default_readb(void __iomem *addr, u32 offset)
{
u8 data = __raw_readb(addr + offset);
@@ -254,13 +254,13 @@ static u8 musb_default_readb(const void __iomem *addr, unsigned offset)
return data;
}
-static void musb_default_writeb(void __iomem *addr, unsigned offset, u8 data)
+static void musb_default_writeb(void __iomem *addr, u32 offset, u8 data)
{
trace_musb_writeb(__builtin_return_address(0), addr, offset, data);
__raw_writeb(data, addr + offset);
}
-static u16 musb_default_readw(const void __iomem *addr, unsigned offset)
+static u16 musb_default_readw(void __iomem *addr, u32 offset)
{
u16 data = __raw_readw(addr + offset);
@@ -268,12 +268,44 @@ static u16 musb_default_readw(const void __iomem *addr, unsigned offset)
return data;
}
-static void musb_default_writew(void __iomem *addr, unsigned offset, u16 data)
+static void musb_default_writew(void __iomem *addr, u32 offset, u16 data)
{
trace_musb_writew(__builtin_return_address(0), addr, offset, data);
__raw_writew(data, addr + offset);
}
+static u16 musb_default_get_toggle(struct musb_qh *qh, int is_out)
+{
+ void __iomem *epio = qh->hw_ep->regs;
+ u16 csr;
+
+ if (is_out)
+ csr = musb_readw(epio, MUSB_TXCSR) & MUSB_TXCSR_H_DATATOGGLE;
+ else
+ csr = musb_readw(epio, MUSB_RXCSR) & MUSB_RXCSR_H_DATATOGGLE;
+
+ return csr;
+}
+
+static u16 musb_default_set_toggle(struct musb_qh *qh, int is_out,
+ struct urb *urb)
+{
+ u16 csr;
+ u16 toggle;
+
+ toggle = usb_gettoggle(urb->dev, qh->epnum, is_out);
+
+ if (is_out)
+ csr = toggle ? (MUSB_TXCSR_H_WR_DATATOGGLE
+ | MUSB_TXCSR_H_DATATOGGLE)
+ : MUSB_TXCSR_CLRDATATOG;
+ else
+ csr = toggle ? (MUSB_RXCSR_H_WR_DATATOGGLE
+ | MUSB_RXCSR_H_DATATOGGLE) : 0;
+
+ return csr;
+}
+
/*
* Load an endpoint's FIFO
*/
@@ -364,19 +396,25 @@ static void musb_default_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *dst)
/*
* Old style IO functions
*/
-u8 (*musb_readb)(const void __iomem *addr, unsigned offset);
+u8 (*musb_readb)(void __iomem *addr, u32 offset);
EXPORT_SYMBOL_GPL(musb_readb);
-void (*musb_writeb)(void __iomem *addr, unsigned offset, u8 data);
+void (*musb_writeb)(void __iomem *addr, u32 offset, u8 data);
EXPORT_SYMBOL_GPL(musb_writeb);
-u16 (*musb_readw)(const void __iomem *addr, unsigned offset);
+u8 (*musb_clearb)(void __iomem *addr, u32 offset);
+EXPORT_SYMBOL_GPL(musb_clearb);
+
+u16 (*musb_readw)(void __iomem *addr, u32 offset);
EXPORT_SYMBOL_GPL(musb_readw);
-void (*musb_writew)(void __iomem *addr, unsigned offset, u16 data);
+void (*musb_writew)(void __iomem *addr, u32 offset, u16 data);
EXPORT_SYMBOL_GPL(musb_writew);
-u32 musb_readl(const void __iomem *addr, unsigned offset)
+u16 (*musb_clearw)(void __iomem *addr, u32 offset);
+EXPORT_SYMBOL_GPL(musb_clearw);
+
+u32 musb_readl(void __iomem *addr, u32 offset)
{
u32 data = __raw_readl(addr + offset);
@@ -385,7 +423,7 @@ u32 musb_readl(const void __iomem *addr, unsigned offset)
}
EXPORT_SYMBOL_GPL(musb_readl);
-void musb_writel(void __iomem *addr, unsigned offset, u32 data)
+void musb_writel(void __iomem *addr, u32 offset, u32 data)
{
trace_musb_writel(__builtin_return_address(0), addr, offset, data);
__raw_writel(data, addr + offset);
@@ -1015,7 +1053,6 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
static void musb_disable_interrupts(struct musb *musb)
{
void __iomem *mbase = musb->mregs;
- u16 temp;
/* disable interrupts */
musb_writeb(mbase, MUSB_INTRUSBE, 0);
@@ -1025,9 +1062,9 @@ static void musb_disable_interrupts(struct musb *musb)
musb_writew(mbase, MUSB_INTRRXE, 0);
/* flush pending interrupts */
- temp = musb_readb(mbase, MUSB_INTRUSB);
- temp = musb_readw(mbase, MUSB_INTRTX);
- temp = musb_readw(mbase, MUSB_INTRRX);
+ musb_clearb(mbase, MUSB_INTRUSB);
+ musb_clearw(mbase, MUSB_INTRTX);
+ musb_clearw(mbase, MUSB_INTRRX);
}
static void musb_enable_interrupts(struct musb *musb)
@@ -2267,10 +2304,19 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
musb_readb = musb->ops->readb;
if (musb->ops->writeb)
musb_writeb = musb->ops->writeb;
+ if (musb->ops->clearb)
+ musb_clearb = musb->ops->clearb;
+ else
+ musb_clearb = musb_readb;
+
if (musb->ops->readw)
musb_readw = musb->ops->readw;
if (musb->ops->writew)
musb_writew = musb->ops->writew;
+ if (musb->ops->clearw)
+ musb_clearw = musb->ops->clearw;
+ else
+ musb_clearw = musb_readw;
#ifndef CONFIG_MUSB_PIO_ONLY
if (!musb->ops->dma_init || !musb->ops->dma_exit) {
@@ -2292,6 +2338,16 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
else
musb->io.write_fifo = musb_default_write_fifo;
+ if (musb->ops->get_toggle)
+ musb->io.get_toggle = musb->ops->get_toggle;
+ else
+ musb->io.get_toggle = musb_default_get_toggle;
+
+ if (musb->ops->set_toggle)
+ musb->io.set_toggle = musb->ops->set_toggle;
+ else
+ musb->io.set_toggle = musb_default_set_toggle;
+
if (!musb->xceiv->io_ops) {
musb->xceiv->io_dev = musb->controller;
musb->xceiv->io_priv = musb->mregs;
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index 04203b71..6060a7c 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -27,6 +27,7 @@
struct musb;
struct musb_hw_ep;
struct musb_ep;
+struct musb_qh;
/* Helper defines for struct musb->hwvers */
#define MUSB_HWVERS_MAJOR(x) ((x >> 10) & 0x1f)
@@ -119,10 +120,14 @@ struct musb_io;
* @fifo_offset: returns the fifo offset
* @readb: read 8 bits
* @writeb: write 8 bits
+ * @clearb: could be clear-on-readb or W1C
* @readw: read 16 bits
* @writew: write 16 bits
+ * @clearw: could be clear-on-readw or W1C
* @read_fifo: reads the fifo
* @write_fifo: writes to fifo
+ * @get_toggle: platform specific get toggle function
+ * @set_toggle: platform specific set toggle function
* @dma_init: platform specific dma init function
* @dma_exit: platform specific dma exit function
* @init: turns on clocks, sets up platform-specific registers, etc
@@ -161,12 +166,16 @@ struct musb_platform_ops {
u16 fifo_mode;
u32 (*fifo_offset)(u8 epnum);
u32 (*busctl_offset)(u8 epnum, u16 offset);
- u8 (*readb)(const void __iomem *addr, unsigned offset);
- void (*writeb)(void __iomem *addr, unsigned offset, u8 data);
- u16 (*readw)(const void __iomem *addr, unsigned offset);
- void (*writew)(void __iomem *addr, unsigned offset, u16 data);
+ u8 (*readb)(void __iomem *addr, u32 offset);
+ void (*writeb)(void __iomem *addr, u32 offset, u8 data);
+ u8 (*clearb)(void __iomem *addr, u32 offset);
+ u16 (*readw)(void __iomem *addr, u32 offset);
+ void (*writew)(void __iomem *addr, u32 offset, u16 data);
+ u16 (*clearw)(void __iomem *addr, u32 offset);
void (*read_fifo)(struct musb_hw_ep *hw_ep, u16 len, u8 *buf);
void (*write_fifo)(struct musb_hw_ep *hw_ep, u16 len, const u8 *buf);
+ u16 (*get_toggle)(struct musb_qh *qh, int is_out);
+ u16 (*set_toggle)(struct musb_qh *qh, int is_out, struct urb *urb);
struct dma_controller *
(*dma_init) (struct musb *musb, void __iomem *base);
void (*dma_exit)(struct dma_controller *c);
diff --git a/drivers/usb/musb/musb_dma.h b/drivers/usb/musb/musb_dma.h
index 8f60271..4b4d8dc 100644
--- a/drivers/usb/musb/musb_dma.h
+++ b/drivers/usb/musb/musb_dma.h
@@ -35,6 +35,12 @@ struct musb_hw_ep;
* whether shared with the Inventra core or separate.
*/
+#define MUSB_HSDMA_BASE 0x200
+#define MUSB_HSDMA_INTR (MUSB_HSDMA_BASE + 0)
+#define MUSB_HSDMA_CONTROL 0x4
+#define MUSB_HSDMA_ADDRESS 0x8
+#define MUSB_HSDMA_COUNT 0xc
+
#define DMA_ADDR_INVALID (~(dma_addr_t)0)
#ifdef CONFIG_MUSB_PIO_ONLY
@@ -191,6 +197,9 @@ extern void (*musb_dma_controller_destroy)(struct dma_controller *);
extern struct dma_controller *
musbhs_dma_controller_create(struct musb *musb, void __iomem *base);
extern void musbhs_dma_controller_destroy(struct dma_controller *c);
+extern struct dma_controller *
+musbhs_dma_controller_create_noirq(struct musb *musb, void __iomem *base);
+extern irqreturn_t dma_controller_irq(int irq, void *private_data);
extern struct dma_controller *
tusb_dma_controller_create(struct musb *musb, void __iomem *base);
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index 68f18af..a1c4fc5 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -286,26 +286,6 @@ __acquires(musb->lock)
spin_lock(&musb->lock);
}
-/* For bulk/interrupt endpoints only */
-static inline void musb_save_toggle(struct musb_qh *qh, int is_in,
- struct urb *urb)
-{
- void __iomem *epio = qh->hw_ep->regs;
- u16 csr;
-
- /*
- * FIXME: the current Mentor DMA code seems to have
- * problems getting toggle correct.
- */
-
- if (is_in)
- csr = musb_readw(epio, MUSB_RXCSR) & MUSB_RXCSR_H_DATATOGGLE;
- else
- csr = musb_readw(epio, MUSB_TXCSR) & MUSB_TXCSR_H_DATATOGGLE;
-
- usb_settoggle(urb->dev, qh->epnum, !is_in, csr ? 1 : 0);
-}
-
/*
* Advance this hardware endpoint's queue, completing the specified URB and
* advancing to either the next URB queued to that qh, or else invalidating
@@ -320,6 +300,7 @@ static void musb_advance_schedule(struct musb *musb, struct urb *urb,
struct musb_hw_ep *ep = qh->hw_ep;
int ready = qh->is_ready;
int status;
+ u16 toggle;
status = (urb->status == -EINPROGRESS) ? 0 : urb->status;
@@ -327,7 +308,8 @@ static void musb_advance_schedule(struct musb *musb, struct urb *urb,
switch (qh->type) {
case USB_ENDPOINT_XFER_BULK:
case USB_ENDPOINT_XFER_INT:
- musb_save_toggle(qh, is_in, urb);
+ toggle = musb->io.get_toggle(qh, !is_in);
+ usb_settoggle(urb->dev, qh->epnum, !is_in, toggle ? 1 : 0);
break;
case USB_ENDPOINT_XFER_ISOC:
if (status == 0 && urb->error_count)
@@ -772,13 +754,8 @@ static void musb_ep_program(struct musb *musb, u8 epnum,
);
csr |= MUSB_TXCSR_MODE;
- if (!hw_ep->tx_double_buffered) {
- if (usb_gettoggle(urb->dev, qh->epnum, 1))
- csr |= MUSB_TXCSR_H_WR_DATATOGGLE
- | MUSB_TXCSR_H_DATATOGGLE;
- else
- csr |= MUSB_TXCSR_CLRDATATOG;
- }
+ if (!hw_ep->tx_double_buffered)
+ csr |= musb->io.set_toggle(qh, is_out, urb);
musb_writew(epio, MUSB_TXCSR, csr);
/* REVISIT may need to clear FLUSHFIFO ... */
@@ -860,17 +837,12 @@ static void musb_ep_program(struct musb *musb, u8 epnum,
/* IN/receive */
} else {
- u16 csr;
+ u16 csr = 0;
if (hw_ep->rx_reinit) {
musb_rx_reinit(musb, qh, epnum);
+ csr |= musb->io.set_toggle(qh, is_out, urb);
- /* init new state: toggle and NYET, maybe DMA later */
- if (usb_gettoggle(urb->dev, qh->epnum, 0))
- csr = MUSB_RXCSR_H_WR_DATATOGGLE
- | MUSB_RXCSR_H_DATATOGGLE;
- else
- csr = 0;
if (qh->type == USB_ENDPOINT_XFER_INT)
csr |= MUSB_RXCSR_DISNYET;
@@ -933,6 +905,7 @@ static void musb_bulk_nak_timeout(struct musb *musb, struct musb_hw_ep *ep,
void __iomem *epio = ep->regs;
struct musb_qh *cur_qh, *next_qh;
u16 rx_csr, tx_csr;
+ u16 toggle;
musb_ep_select(mbase, ep->epnum);
if (is_in) {
@@ -970,7 +943,8 @@ static void musb_bulk_nak_timeout(struct musb *musb, struct musb_hw_ep *ep,
urb->actual_length += dma->actual_len;
dma->actual_len = 0L;
}
- musb_save_toggle(cur_qh, is_in, urb);
+ toggle = musb->io.get_toggle(cur_qh, !is_in);
+ usb_settoggle(urb->dev, cur_qh->epnum, !is_in, toggle ? 1 : 0);
if (is_in) {
/* move cur_qh to end of queue */
diff --git a/drivers/usb/musb/musb_io.h b/drivers/usb/musb/musb_io.h
index 8058a58..f17aabd 100644
--- a/drivers/usb/musb/musb_io.h
+++ b/drivers/usb/musb/musb_io.h
@@ -22,6 +22,8 @@
* @read_fifo: platform specific function to read fifo
* @write_fifo: platform specific function to write fifo
* @busctl_offset: platform specific function to get busctl offset
+ * @get_toggle: platform specific function to get toggle
+ * @set_toggle: platform specific function to set toggle
*/
struct musb_io {
u32 (*ep_offset)(u8 epnum, u16 offset);
@@ -30,14 +32,18 @@ struct musb_io {
void (*read_fifo)(struct musb_hw_ep *hw_ep, u16 len, u8 *buf);
void (*write_fifo)(struct musb_hw_ep *hw_ep, u16 len, const u8 *buf);
u32 (*busctl_offset)(u8 epnum, u16 offset);
+ u16 (*get_toggle)(struct musb_qh *qh, int is_out);
+ u16 (*set_toggle)(struct musb_qh *qh, int is_out, struct urb *urb);
};
/* Do not add new entries here, add them the struct musb_io instead */
-extern u8 (*musb_readb)(const void __iomem *addr, unsigned offset);
-extern void (*musb_writeb)(void __iomem *addr, unsigned offset, u8 data);
-extern u16 (*musb_readw)(const void __iomem *addr, unsigned offset);
-extern void (*musb_writew)(void __iomem *addr, unsigned offset, u16 data);
-extern u32 musb_readl(const void __iomem *addr, unsigned offset);
-extern void musb_writel(void __iomem *addr, unsigned offset, u32 data);
+extern u8 (*musb_readb)(void __iomem *addr, u32 offset);
+extern void (*musb_writeb)(void __iomem *addr, u32 offset, u8 data);
+extern u8 (*musb_clearb)(void __iomem *addr, u32 offset);
+extern u16 (*musb_readw)(void __iomem *addr, u32 offset);
+extern void (*musb_writew)(void __iomem *addr, u32 offset, u16 data);
+extern u16 (*musb_clearw)(void __iomem *addr, u32 offset);
+extern u32 musb_readl(void __iomem *addr, u32 offset);
+extern void musb_writel(void __iomem *addr, u32 offset, u32 data);
#endif
diff --git a/drivers/usb/musb/musbhsdma.c b/drivers/usb/musb/musbhsdma.c
index 2d3751d..0aacfc8 100644
--- a/drivers/usb/musb/musbhsdma.c
+++ b/drivers/usb/musb/musbhsdma.c
@@ -10,12 +10,7 @@
#include <linux/platform_device.h>
#include <linux/slab.h>
#include "musb_core.h"
-
-#define MUSB_HSDMA_BASE 0x200
-#define MUSB_HSDMA_INTR (MUSB_HSDMA_BASE + 0)
-#define MUSB_HSDMA_CONTROL 0x4
-#define MUSB_HSDMA_ADDRESS 0x8
-#define MUSB_HSDMA_COUNT 0xc
+#include "musb_dma.h"
#define MUSB_HSDMA_CHANNEL_OFFSET(_bchannel, _offset) \
(MUSB_HSDMA_BASE + (_bchannel << 4) + _offset)
@@ -268,7 +263,7 @@ static int dma_channel_abort(struct dma_channel *channel)
return 0;
}
-static irqreturn_t dma_controller_irq(int irq, void *private_data)
+irqreturn_t dma_controller_irq(int irq, void *private_data)
{
struct musb_dma_controller *controller = private_data;
struct musb *musb = controller->private_data;
@@ -289,7 +284,7 @@ static irqreturn_t dma_controller_irq(int irq, void *private_data)
spin_lock_irqsave(&musb->lock, flags);
- int_hsdma = musb_readb(mbase, MUSB_HSDMA_INTR);
+ int_hsdma = musb_clearb(mbase, MUSB_HSDMA_INTR);
if (!int_hsdma) {
musb_dbg(musb, "spurious DMA irq");
@@ -383,6 +378,7 @@ static irqreturn_t dma_controller_irq(int irq, void *private_data)
spin_unlock_irqrestore(&musb->lock, flags);
return retval;
}
+EXPORT_SYMBOL_GPL(dma_controller_irq);
void musbhs_dma_controller_destroy(struct dma_controller *c)
{
@@ -398,18 +394,10 @@ void musbhs_dma_controller_destroy(struct dma_controller *c)
}
EXPORT_SYMBOL_GPL(musbhs_dma_controller_destroy);
-struct dma_controller *musbhs_dma_controller_create(struct musb *musb,
- void __iomem *base)
+static struct musb_dma_controller *
+dma_controller_alloc(struct musb *musb, void __iomem *base)
{
struct musb_dma_controller *controller;
- struct device *dev = musb->controller;
- struct platform_device *pdev = to_platform_device(dev);
- int irq = platform_get_irq_byname(pdev, "dma");
-
- if (irq <= 0) {
- dev_err(dev, "No DMA interrupt line!\n");
- return NULL;
- }
controller = kzalloc(sizeof(*controller), GFP_KERNEL);
if (!controller)
@@ -423,6 +411,25 @@ struct dma_controller *musbhs_dma_controller_create(struct musb *musb,
controller->controller.channel_release = dma_channel_release;
controller->controller.channel_program = dma_channel_program;
controller->controller.channel_abort = dma_channel_abort;
+ return controller;
+}
+
+struct dma_controller *
+musbhs_dma_controller_create(struct musb *musb, void __iomem *base)
+{
+ struct musb_dma_controller *controller;
+ struct device *dev = musb->controller;
+ struct platform_device *pdev = to_platform_device(dev);
+ int irq = platform_get_irq_byname(pdev, "dma");
+
+ if (irq <= 0) {
+ dev_err(dev, "No DMA interrupt line!\n");
+ return NULL;
+ }
+
+ controller = dma_controller_alloc(musb, base);
+ if (!controller)
+ return NULL;
if (request_irq(irq, dma_controller_irq, 0,
dev_name(musb->controller), controller)) {
@@ -437,3 +444,16 @@ struct dma_controller *musbhs_dma_controller_create(struct musb *musb,
return &controller->controller;
}
EXPORT_SYMBOL_GPL(musbhs_dma_controller_create);
+
+struct dma_controller *
+musbhs_dma_controller_create_noirq(struct musb *musb, void __iomem *base)
+{
+ struct musb_dma_controller *controller;
+
+ controller = dma_controller_alloc(musb, base);
+ if (!controller)
+ return NULL;
+
+ return &controller->controller;
+}
+EXPORT_SYMBOL_GPL(musbhs_dma_controller_create_noirq);
diff --git a/drivers/usb/musb/sunxi.c b/drivers/usb/musb/sunxi.c
index 832a41f..e6b3d71 100644
--- a/drivers/usb/musb/sunxi.c
+++ b/drivers/usb/musb/sunxi.c
@@ -407,7 +407,7 @@ static u32 sunxi_musb_busctl_offset(u8 epnum, u16 offset)
return SUNXI_MUSB_TXFUNCADDR + offset;
}
-static u8 sunxi_musb_readb(const void __iomem *addr, unsigned offset)
+static u8 sunxi_musb_readb(void __iomem *addr, u32 offset)
{
struct sunxi_glue *glue;
@@ -520,7 +520,7 @@ static void sunxi_musb_writeb(void __iomem *addr, unsigned offset, u8 data)
(int)(addr - sunxi_musb->mregs));
}
-static u16 sunxi_musb_readw(const void __iomem *addr, unsigned offset)
+static u16 sunxi_musb_readw(void __iomem *addr, u32 offset)
{
if (addr == sunxi_musb->mregs) {
/* generic control or fifo control reg access */
diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c
index 3945328..5d44908 100644
--- a/drivers/usb/musb/tusb6010.c
+++ b/drivers/usb/musb/tusb6010.c
@@ -142,7 +142,7 @@ static void tusb_ep_select(void __iomem *mbase, u8 epnum)
/*
* TUSB6010 doesn't allow 8-bit access; 16-bit access is the minimum.
*/
-static u8 tusb_readb(const void __iomem *addr, unsigned offset)
+static u8 tusb_readb(void __iomem *addr, u32 offset)
{
u16 tmp;
u8 val;
diff --git a/drivers/usb/typec/bus.c b/drivers/usb/typec/bus.c
index 76299b6..c950171 100644
--- a/drivers/usb/typec/bus.c
+++ b/drivers/usb/typec/bus.c
@@ -192,6 +192,9 @@ EXPORT_SYMBOL_GPL(typec_altmode_vdm);
const struct typec_altmode *
typec_altmode_get_partner(struct typec_altmode *adev)
{
+ if (!adev || !to_altmode(adev)->partner)
+ return NULL;
+
return &to_altmode(adev)->partner->adev;
}
EXPORT_SYMBOL_GPL(typec_altmode_get_partner);
diff --git a/drivers/usb/typec/bus.h b/drivers/usb/typec/bus.h
index db40e61..0c9661c 100644
--- a/drivers/usb/typec/bus.h
+++ b/drivers/usb/typec/bus.h
@@ -35,4 +35,19 @@ extern const struct device_type typec_port_dev_type;
#define is_typec_altmode(_dev_) (_dev_->type == &typec_altmode_dev_type)
#define is_typec_port(_dev_) (_dev_->type == &typec_port_dev_type)
+extern struct class typec_mux_class;
+
+struct typec_switch {
+ struct device dev;
+ typec_switch_set_fn_t set;
+};
+
+struct typec_mux {
+ struct device dev;
+ typec_mux_set_fn_t set;
+};
+
+#define to_typec_switch(_dev_) container_of(_dev_, struct typec_switch, dev)
+#define to_typec_mux(_dev_) container_of(_dev_, struct typec_mux, dev)
+
#endif /* __USB_TYPEC_ALTMODE_H__ */
diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c
index 8dae6ff..27768cb 100644
--- a/drivers/usb/typec/class.c
+++ b/drivers/usb/typec/class.c
@@ -9,6 +9,7 @@
#include <linux/device.h>
#include <linux/module.h>
#include <linux/mutex.h>
+#include <linux/property.h>
#include <linux/slab.h>
#include "bus.h"
@@ -204,15 +205,32 @@ static void typec_altmode_put_partner(struct altmode *altmode)
put_device(&adev->dev);
}
-static int __typec_port_match(struct device *dev, const void *name)
+static int typec_port_fwnode_match(struct device *dev, const void *fwnode)
+{
+ return dev_fwnode(dev) == fwnode;
+}
+
+static int typec_port_name_match(struct device *dev, const void *name)
{
return !strcmp((const char *)name, dev_name(dev));
}
static void *typec_port_match(struct device_connection *con, int ep, void *data)
{
- return class_find_device(typec_class, NULL, con->endpoint[ep],
- __typec_port_match);
+ struct device *dev;
+
+ /*
+ * FIXME: Check does the fwnode supports the requested SVID. If it does
+ * we need to return ERR_PTR(-PROBE_DEFER) when there is no device.
+ */
+ if (con->fwnode)
+ return class_find_device(typec_class, NULL, con->fwnode,
+ typec_port_fwnode_match);
+
+ dev = class_find_device(typec_class, NULL, con->endpoint[ep],
+ typec_port_name_match);
+
+ return dev ? dev : ERR_PTR(-EPROBE_DEFER);
}
struct typec_altmode *
@@ -277,7 +295,7 @@ void typec_altmode_update_active(struct typec_altmode *adev, bool active)
if (adev->active == active)
return;
- if (!is_typec_port(adev->dev.parent)) {
+ if (!is_typec_port(adev->dev.parent) && adev->dev.driver) {
if (!active)
module_put(adev->dev.driver->owner);
else
@@ -1498,11 +1516,8 @@ typec_port_register_altmode(struct typec_port *port,
{
struct typec_altmode *adev;
struct typec_mux *mux;
- char id[10];
- sprintf(id, "id%04xm%02x", desc->svid, desc->mode);
-
- mux = typec_mux_get(&port->dev, id);
+ mux = typec_mux_get(&port->dev, desc);
if (IS_ERR(mux))
return ERR_CAST(mux);
@@ -1596,7 +1611,7 @@ struct typec_port *typec_register_port(struct device *parent,
return ERR_PTR(ret);
}
- port->mux = typec_mux_get(&port->dev, "typec-mux");
+ port->mux = typec_mux_get(&port->dev, NULL);
if (IS_ERR(port->mux)) {
ret = PTR_ERR(port->mux);
put_device(&port->dev);
@@ -1635,13 +1650,25 @@ static int __init typec_init(void)
if (ret)
return ret;
+ ret = class_register(&typec_mux_class);
+ if (ret)
+ goto err_unregister_bus;
+
typec_class = class_create(THIS_MODULE, "typec");
if (IS_ERR(typec_class)) {
- bus_unregister(&typec_bus);
- return PTR_ERR(typec_class);
+ ret = PTR_ERR(typec_class);
+ goto err_unregister_mux_class;
}
return 0;
+
+err_unregister_mux_class:
+ class_unregister(&typec_mux_class);
+
+err_unregister_bus:
+ bus_unregister(&typec_bus);
+
+ return ret;
}
subsys_initcall(typec_init);
@@ -1650,6 +1677,7 @@ static void __exit typec_exit(void)
class_destroy(typec_class);
ida_destroy(&typec_index_ida);
bus_unregister(&typec_bus);
+ class_unregister(&typec_mux_class);
}
module_exit(typec_exit);
diff --git a/drivers/usb/typec/mux.c b/drivers/usb/typec/mux.c
index d990aa5..57907f2 100644
--- a/drivers/usb/typec/mux.c
+++ b/drivers/usb/typec/mux.c
@@ -11,27 +11,51 @@
#include <linux/list.h>
#include <linux/module.h>
#include <linux/mutex.h>
+#include <linux/property.h>
+#include <linux/slab.h>
#include <linux/usb/typec_mux.h>
-static DEFINE_MUTEX(switch_lock);
-static DEFINE_MUTEX(mux_lock);
-static LIST_HEAD(switch_list);
-static LIST_HEAD(mux_list);
+#include "bus.h"
+
+static int name_match(struct device *dev, const void *name)
+{
+ return !strcmp((const char *)name, dev_name(dev));
+}
+
+static bool dev_name_ends_with(struct device *dev, const char *suffix)
+{
+ const char *name = dev_name(dev);
+ const int name_len = strlen(name);
+ const int suffix_len = strlen(suffix);
+
+ if (suffix_len > name_len)
+ return false;
+
+ return strcmp(name + (name_len - suffix_len), suffix) == 0;
+}
+
+static int switch_fwnode_match(struct device *dev, const void *fwnode)
+{
+ return dev_fwnode(dev) == fwnode && dev_name_ends_with(dev, "-switch");
+}
static void *typec_switch_match(struct device_connection *con, int ep,
void *data)
{
- struct typec_switch *sw;
+ struct device *dev;
- list_for_each_entry(sw, &switch_list, entry)
- if (!strcmp(con->endpoint[ep], dev_name(sw->dev)))
- return sw;
+ if (con->fwnode) {
+ if (con->id && !fwnode_property_present(con->fwnode, con->id))
+ return NULL;
- /*
- * We only get called if a connection was found, tell the caller to
- * wait for the switch to show up.
- */
- return ERR_PTR(-EPROBE_DEFER);
+ dev = class_find_device(&typec_mux_class, NULL, con->fwnode,
+ switch_fwnode_match);
+ } else {
+ dev = class_find_device(&typec_mux_class, NULL,
+ con->endpoint[ep], name_match);
+ }
+
+ return dev ? to_typec_switch(dev) : ERR_PTR(-EPROBE_DEFER);
}
/**
@@ -47,14 +71,10 @@ struct typec_switch *typec_switch_get(struct device *dev)
{
struct typec_switch *sw;
- mutex_lock(&switch_lock);
- sw = device_connection_find_match(dev, "typec-switch", NULL,
+ sw = device_connection_find_match(dev, "orientation-switch", NULL,
typec_switch_match);
- if (!IS_ERR_OR_NULL(sw)) {
- WARN_ON(!try_module_get(sw->dev->driver->owner));
- get_device(sw->dev);
- }
- mutex_unlock(&switch_lock);
+ if (!IS_ERR_OR_NULL(sw))
+ WARN_ON(!try_module_get(sw->dev.parent->driver->owner));
return sw;
}
@@ -69,28 +89,64 @@ EXPORT_SYMBOL_GPL(typec_switch_get);
void typec_switch_put(struct typec_switch *sw)
{
if (!IS_ERR_OR_NULL(sw)) {
- module_put(sw->dev->driver->owner);
- put_device(sw->dev);
+ module_put(sw->dev.parent->driver->owner);
+ put_device(&sw->dev);
}
}
EXPORT_SYMBOL_GPL(typec_switch_put);
+static void typec_switch_release(struct device *dev)
+{
+ kfree(to_typec_switch(dev));
+}
+
+static const struct device_type typec_switch_dev_type = {
+ .name = "orientation_switch",
+ .release = typec_switch_release,
+};
+
/**
* typec_switch_register - Register USB Type-C orientation switch
- * @sw: USB Type-C orientation switch
+ * @parent: Parent device
+ * @desc: Orientation switch description
*
* This function registers a switch that can be used for routing the correct
* data pairs depending on the cable plug orientation from the USB Type-C
* connector to the USB controllers. USB Type-C plugs can be inserted
* right-side-up or upside-down.
*/
-int typec_switch_register(struct typec_switch *sw)
+struct typec_switch *
+typec_switch_register(struct device *parent,
+ const struct typec_switch_desc *desc)
{
- mutex_lock(&switch_lock);
- list_add_tail(&sw->entry, &switch_list);
- mutex_unlock(&switch_lock);
+ struct typec_switch *sw;
+ int ret;
- return 0;
+ if (!desc || !desc->set)
+ return ERR_PTR(-EINVAL);
+
+ sw = kzalloc(sizeof(*sw), GFP_KERNEL);
+ if (!sw)
+ return ERR_PTR(-ENOMEM);
+
+ sw->set = desc->set;
+
+ device_initialize(&sw->dev);
+ sw->dev.parent = parent;
+ sw->dev.fwnode = desc->fwnode;
+ sw->dev.class = &typec_mux_class;
+ sw->dev.type = &typec_switch_dev_type;
+ sw->dev.driver_data = desc->drvdata;
+ dev_set_name(&sw->dev, "%s-switch", dev_name(parent));
+
+ ret = device_add(&sw->dev);
+ if (ret) {
+ dev_err(parent, "failed to register switch (%d)\n", ret);
+ put_device(&sw->dev);
+ return ERR_PTR(ret);
+ }
+
+ return sw;
}
EXPORT_SYMBOL_GPL(typec_switch_register);
@@ -102,50 +158,113 @@ EXPORT_SYMBOL_GPL(typec_switch_register);
*/
void typec_switch_unregister(struct typec_switch *sw)
{
- mutex_lock(&switch_lock);
- list_del(&sw->entry);
- mutex_unlock(&switch_lock);
+ if (!IS_ERR_OR_NULL(sw))
+ device_unregister(&sw->dev);
}
EXPORT_SYMBOL_GPL(typec_switch_unregister);
+void typec_switch_set_drvdata(struct typec_switch *sw, void *data)
+{
+ dev_set_drvdata(&sw->dev, data);
+}
+EXPORT_SYMBOL_GPL(typec_switch_set_drvdata);
+
+void *typec_switch_get_drvdata(struct typec_switch *sw)
+{
+ return dev_get_drvdata(&sw->dev);
+}
+EXPORT_SYMBOL_GPL(typec_switch_get_drvdata);
+
/* ------------------------------------------------------------------------- */
+static int mux_fwnode_match(struct device *dev, const void *fwnode)
+{
+ return dev_fwnode(dev) == fwnode && dev_name_ends_with(dev, "-mux");
+}
+
static void *typec_mux_match(struct device_connection *con, int ep, void *data)
{
- struct typec_mux *mux;
+ const struct typec_altmode_desc *desc = data;
+ struct device *dev;
+ bool match;
+ int nval;
+ u16 *val;
+ int i;
- list_for_each_entry(mux, &mux_list, entry)
- if (!strcmp(con->endpoint[ep], dev_name(mux->dev)))
- return mux;
+ if (!con->fwnode) {
+ dev = class_find_device(&typec_mux_class, NULL,
+ con->endpoint[ep], name_match);
+
+ return dev ? to_typec_switch(dev) : ERR_PTR(-EPROBE_DEFER);
+ }
/*
- * We only get called if a connection was found, tell the caller to
- * wait for the switch to show up.
+ * Check has the identifier already been "consumed". If it
+ * has, no need to do any extra connection identification.
*/
- return ERR_PTR(-EPROBE_DEFER);
+ match = !con->id;
+ if (match)
+ goto find_mux;
+
+ /* Accessory Mode muxes */
+ if (!desc) {
+ match = fwnode_property_present(con->fwnode, "accessory");
+ if (match)
+ goto find_mux;
+ return NULL;
+ }
+
+ /* Alternate Mode muxes */
+ nval = fwnode_property_count_u16(con->fwnode, "svid");
+ if (nval <= 0)
+ return NULL;
+
+ val = kcalloc(nval, sizeof(*val), GFP_KERNEL);
+ if (!val)
+ return ERR_PTR(-ENOMEM);
+
+ nval = fwnode_property_read_u16_array(con->fwnode, "svid", val, nval);
+ if (nval < 0) {
+ kfree(val);
+ return ERR_PTR(nval);
+ }
+
+ for (i = 0; i < nval; i++) {
+ match = val[i] == desc->svid;
+ if (match) {
+ kfree(val);
+ goto find_mux;
+ }
+ }
+ kfree(val);
+ return NULL;
+
+find_mux:
+ dev = class_find_device(&typec_mux_class, NULL, con->fwnode,
+ mux_fwnode_match);
+
+ return dev ? to_typec_switch(dev) : ERR_PTR(-EPROBE_DEFER);
}
/**
* typec_mux_get - Find USB Type-C Multiplexer
* @dev: The caller device
- * @name: Mux identifier
+ * @desc: Alt Mode description
*
* Finds a mux linked to the caller. This function is primarily meant for the
* Type-C drivers. Returns a reference to the mux on success, NULL if no
* matching connection was found, or ERR_PTR(-EPROBE_DEFER) when a connection
* was found but the mux has not been enumerated yet.
*/
-struct typec_mux *typec_mux_get(struct device *dev, const char *name)
+struct typec_mux *typec_mux_get(struct device *dev,
+ const struct typec_altmode_desc *desc)
{
struct typec_mux *mux;
- mutex_lock(&mux_lock);
- mux = device_connection_find_match(dev, name, NULL, typec_mux_match);
- if (!IS_ERR_OR_NULL(mux)) {
- WARN_ON(!try_module_get(mux->dev->driver->owner));
- get_device(mux->dev);
- }
- mutex_unlock(&mux_lock);
+ mux = device_connection_find_match(dev, "mode-switch", (void *)desc,
+ typec_mux_match);
+ if (!IS_ERR_OR_NULL(mux))
+ WARN_ON(!try_module_get(mux->dev.parent->driver->owner));
return mux;
}
@@ -160,28 +279,63 @@ EXPORT_SYMBOL_GPL(typec_mux_get);
void typec_mux_put(struct typec_mux *mux)
{
if (!IS_ERR_OR_NULL(mux)) {
- module_put(mux->dev->driver->owner);
- put_device(mux->dev);
+ module_put(mux->dev.parent->driver->owner);
+ put_device(&mux->dev);
}
}
EXPORT_SYMBOL_GPL(typec_mux_put);
+static void typec_mux_release(struct device *dev)
+{
+ kfree(to_typec_mux(dev));
+}
+
+static const struct device_type typec_mux_dev_type = {
+ .name = "mode_switch",
+ .release = typec_mux_release,
+};
+
/**
* typec_mux_register - Register Multiplexer routing USB Type-C pins
- * @mux: USB Type-C Connector Multiplexer/DeMultiplexer
+ * @parent: Parent device
+ * @desc: Multiplexer description
*
* USB Type-C connectors can be used for alternate modes of operation besides
* USB when Accessory/Alternate Modes are supported. With some of those modes,
* the pins on the connector need to be reconfigured. This function registers
* multiplexer switches routing the pins on the connector.
*/
-int typec_mux_register(struct typec_mux *mux)
+struct typec_mux *
+typec_mux_register(struct device *parent, const struct typec_mux_desc *desc)
{
- mutex_lock(&mux_lock);
- list_add_tail(&mux->entry, &mux_list);
- mutex_unlock(&mux_lock);
+ struct typec_mux *mux;
+ int ret;
- return 0;
+ if (!desc || !desc->set)
+ return ERR_PTR(-EINVAL);
+
+ mux = kzalloc(sizeof(*mux), GFP_KERNEL);
+ if (!mux)
+ return ERR_PTR(-ENOMEM);
+
+ mux->set = desc->set;
+
+ device_initialize(&mux->dev);
+ mux->dev.parent = parent;
+ mux->dev.fwnode = desc->fwnode;
+ mux->dev.class = &typec_mux_class;
+ mux->dev.type = &typec_mux_dev_type;
+ mux->dev.driver_data = desc->drvdata;
+ dev_set_name(&mux->dev, "%s-mux", dev_name(parent));
+
+ ret = device_add(&mux->dev);
+ if (ret) {
+ dev_err(parent, "failed to register mux (%d)\n", ret);
+ put_device(&mux->dev);
+ return ERR_PTR(ret);
+ }
+
+ return mux;
}
EXPORT_SYMBOL_GPL(typec_mux_register);
@@ -193,8 +347,24 @@ EXPORT_SYMBOL_GPL(typec_mux_register);
*/
void typec_mux_unregister(struct typec_mux *mux)
{
- mutex_lock(&mux_lock);
- list_del(&mux->entry);
- mutex_unlock(&mux_lock);
+ if (!IS_ERR_OR_NULL(mux))
+ device_unregister(&mux->dev);
}
EXPORT_SYMBOL_GPL(typec_mux_unregister);
+
+void typec_mux_set_drvdata(struct typec_mux *mux, void *data)
+{
+ dev_set_drvdata(&mux->dev, data);
+}
+EXPORT_SYMBOL_GPL(typec_mux_set_drvdata);
+
+void *typec_mux_get_drvdata(struct typec_mux *mux)
+{
+ return dev_get_drvdata(&mux->dev);
+}
+EXPORT_SYMBOL_GPL(typec_mux_get_drvdata);
+
+struct class typec_mux_class = {
+ .name = "typec_mux",
+ .owner = THIS_MODULE,
+};
diff --git a/drivers/usb/typec/mux/pi3usb30532.c b/drivers/usb/typec/mux/pi3usb30532.c
index 64eb598..5319611 100644
--- a/drivers/usb/typec/mux/pi3usb30532.c
+++ b/drivers/usb/typec/mux/pi3usb30532.c
@@ -23,8 +23,8 @@
struct pi3usb30532 {
struct i2c_client *client;
struct mutex lock; /* protects the cached conf register */
- struct typec_switch sw;
- struct typec_mux mux;
+ struct typec_switch *sw;
+ struct typec_mux *mux;
u8 conf;
};
@@ -48,7 +48,7 @@ static int pi3usb30532_set_conf(struct pi3usb30532 *pi, u8 new_conf)
static int pi3usb30532_sw_set(struct typec_switch *sw,
enum typec_orientation orientation)
{
- struct pi3usb30532 *pi = container_of(sw, struct pi3usb30532, sw);
+ struct pi3usb30532 *pi = typec_switch_get_drvdata(sw);
u8 new_conf;
int ret;
@@ -75,7 +75,7 @@ static int pi3usb30532_sw_set(struct typec_switch *sw,
static int pi3usb30532_mux_set(struct typec_mux *mux, int state)
{
- struct pi3usb30532 *pi = container_of(mux, struct pi3usb30532, mux);
+ struct pi3usb30532 *pi = typec_mux_get_drvdata(mux);
u8 new_conf;
int ret;
@@ -112,6 +112,8 @@ static int pi3usb30532_mux_set(struct typec_mux *mux, int state)
static int pi3usb30532_probe(struct i2c_client *client)
{
struct device *dev = &client->dev;
+ struct typec_switch_desc sw_desc;
+ struct typec_mux_desc mux_desc;
struct pi3usb30532 *pi;
int ret;
@@ -120,10 +122,6 @@ static int pi3usb30532_probe(struct i2c_client *client)
return -ENOMEM;
pi->client = client;
- pi->sw.dev = dev;
- pi->sw.set = pi3usb30532_sw_set;
- pi->mux.dev = dev;
- pi->mux.set = pi3usb30532_mux_set;
mutex_init(&pi->lock);
ret = i2c_smbus_read_byte_data(client, PI3USB30532_CONF);
@@ -133,17 +131,27 @@ static int pi3usb30532_probe(struct i2c_client *client)
}
pi->conf = ret;
- ret = typec_switch_register(&pi->sw);
- if (ret) {
- dev_err(dev, "Error registering typec switch: %d\n", ret);
- return ret;
+ sw_desc.drvdata = pi;
+ sw_desc.fwnode = dev->fwnode;
+ sw_desc.set = pi3usb30532_sw_set;
+
+ pi->sw = typec_switch_register(dev, &sw_desc);
+ if (IS_ERR(pi->sw)) {
+ dev_err(dev, "Error registering typec switch: %ld\n",
+ PTR_ERR(pi->sw));
+ return PTR_ERR(pi->sw);
}
- ret = typec_mux_register(&pi->mux);
- if (ret) {
- typec_switch_unregister(&pi->sw);
- dev_err(dev, "Error registering typec mux: %d\n", ret);
- return ret;
+ mux_desc.drvdata = pi;
+ mux_desc.fwnode = dev->fwnode;
+ mux_desc.set = pi3usb30532_mux_set;
+
+ pi->mux = typec_mux_register(dev, &mux_desc);
+ if (IS_ERR(pi->mux)) {
+ typec_switch_unregister(pi->sw);
+ dev_err(dev, "Error registering typec mux: %ld\n",
+ PTR_ERR(pi->mux));
+ return PTR_ERR(pi->mux);
}
i2c_set_clientdata(client, pi);
@@ -154,8 +162,8 @@ static int pi3usb30532_remove(struct i2c_client *client)
{
struct pi3usb30532 *pi = i2c_get_clientdata(client);
- typec_mux_unregister(&pi->mux);
- typec_switch_unregister(&pi->sw);
+ typec_mux_unregister(pi->mux);
+ typec_switch_unregister(pi->sw);
return 0;
}
diff --git a/drivers/vfio/Kconfig b/drivers/vfio/Kconfig
index b776527..aa58ed4 100644
--- a/drivers/vfio/Kconfig
+++ b/drivers/vfio/Kconfig
@@ -22,7 +22,6 @@
tristate "VFIO Non-Privileged userspace driver framework"
depends on IOMMU_API
select VFIO_IOMMU_TYPE1 if (X86 || S390 || ARM_SMMU || ARM_SMMU_V3)
- select ANON_INODES
help
VFIO provides a framework for secure userspace device drivers.
See Documentation/vfio.txt for more details.
diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c
index 95ce167..3f20cc2 100644
--- a/drivers/vfio/vfio_iommu_type1.c
+++ b/drivers/vfio/vfio_iommu_type1.c
@@ -408,6 +408,8 @@ static int vaddr_get_pfn(struct mm_struct *mm, unsigned long vaddr,
down_read(&mm->mmap_sem);
+ vaddr = untagged_addr(vaddr);
+
retry:
vma = find_vma_intersection(mm, vaddr, vaddr + 1);
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 7a58f62..ee478b5 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -31,6 +31,7 @@
#include <linux/sched/signal.h>
#include <linux/interval_tree_generic.h>
#include <linux/nospec.h>
+#include <linux/kcov.h>
#include "vhost.h"
@@ -359,7 +360,9 @@ static int vhost_worker(void *data)
llist_for_each_entry_safe(work, work_next, node, node) {
clear_bit(VHOST_WORK_QUEUED, &work->flags);
__set_current_state(TASK_RUNNING);
+ kcov_remote_start_common(dev->kcov_handle);
work->fn(work);
+ kcov_remote_stop();
if (need_resched())
schedule();
}
@@ -522,6 +525,7 @@ long vhost_dev_set_owner(struct vhost_dev *dev)
/* No owner, become one */
dev->mm = get_task_mm(current);
+ dev->kcov_handle = kcov_common_handle();
worker = kthread_create(vhost_worker, dev, "vhost-%d", current->pid);
if (IS_ERR(worker)) {
err = PTR_ERR(worker);
@@ -547,6 +551,7 @@ long vhost_dev_set_owner(struct vhost_dev *dev)
if (dev->mm)
mmput(dev->mm);
dev->mm = NULL;
+ dev->kcov_handle = 0;
err_mm:
return err;
}
@@ -658,6 +663,7 @@ void vhost_dev_cleanup(struct vhost_dev *dev)
if (dev->worker) {
kthread_stop(dev->worker);
dev->worker = NULL;
+ dev->kcov_handle = 0;
}
if (dev->mm)
mmput(dev->mm);
diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
index 27a78a9..7c04ca3 100644
--- a/drivers/vhost/vhost.h
+++ b/drivers/vhost/vhost.h
@@ -173,6 +173,7 @@ struct vhost_dev {
int iov_limit;
int weight;
int byte_weight;
+ u64 kcov_handle;
};
bool vhost_exceeds_weight(struct vhost_virtqueue *vq, int pkts, int total_len);
diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig
index 3589764..009278b 100644
--- a/drivers/virtio/Kconfig
+++ b/drivers/virtio/Kconfig
@@ -42,6 +42,17 @@
If unsure, say Y.
+config VIRTIO_PMEM
+ tristate "Support for virtio pmem driver"
+ depends on VIRTIO
+ depends on LIBNVDIMM
+ help
+ This driver provides access to virtio-pmem devices, storage devices
+ that are mapped into the physical address space - similar to NVDIMMs
+ - with a virtio-based flushing interface.
+
+ If unsure, say Y.
+
config VIRTIO_BALLOON
tristate "Virtio balloon driver"
depends on VIRTIO
diff --git a/drivers/virtio/virtio_input.c b/drivers/virtio/virtio_input.c
index 3a0468f2..0073d07 100644
--- a/drivers/virtio/virtio_input.c
+++ b/drivers/virtio/virtio_input.c
@@ -2,6 +2,7 @@
#include <linux/virtio.h>
#include <linux/virtio_config.h>
#include <linux/input.h>
+#include <linux/input/mt.h>
#include <uapi/linux/virtio_ids.h>
#include <uapi/linux/virtio_input.h>
@@ -163,6 +164,15 @@ static void virtinput_cfg_abs(struct virtio_input *vi, int abs)
virtio_cread(vi->vdev, struct virtio_input_config, u.abs.flat, &fl);
input_set_abs_params(vi->idev, abs, mi, ma, fu, fl);
input_abs_set_res(vi->idev, abs, re);
+ if (abs == ABS_MT_TRACKING_ID) {
+ unsigned int slot_flags =
+ test_bit(INPUT_PROP_DIRECT, vi->idev->propbit) ?
+ INPUT_MT_DIRECT : 0;
+
+ input_mt_init_slots(vi->idev,
+ ma, /* input max finger */
+ slot_flags);
+ }
}
static int virtinput_init_vqs(struct virtio_input *vi)
diff --git a/fs/Kconfig b/fs/Kconfig
index ac474a6..75592af 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -105,6 +105,8 @@
source "fs/crypto/Kconfig"
+source "fs/verity/Kconfig"
+
source "fs/notify/Kconfig"
source "fs/quota/Kconfig"
@@ -112,6 +114,7 @@
source "fs/autofs/Kconfig"
source "fs/fuse/Kconfig"
source "fs/overlayfs/Kconfig"
+source "fs/incfs/Kconfig"
menu "Caches"
@@ -313,5 +316,6 @@
source "fs/nls/Kconfig"
source "fs/dlm/Kconfig"
+source "fs/unicode/Kconfig"
endmenu
diff --git a/fs/Makefile b/fs/Makefile
index 293733f..b0f8c00 100644
--- a/fs/Makefile
+++ b/fs/Makefile
@@ -24,7 +24,7 @@
obj-y += notify/
obj-$(CONFIG_EPOLL) += eventpoll.o
-obj-$(CONFIG_ANON_INODES) += anon_inodes.o
+obj-y += anon_inodes.o
obj-$(CONFIG_SIGNALFD) += signalfd.o
obj-$(CONFIG_TIMERFD) += timerfd.o
obj-$(CONFIG_EVENTFD) += eventfd.o
@@ -32,6 +32,7 @@
obj-$(CONFIG_AIO) += aio.o
obj-$(CONFIG_FS_DAX) += dax.o
obj-$(CONFIG_FS_ENCRYPTION) += crypto/
+obj-$(CONFIG_FS_VERITY) += verity/
obj-$(CONFIG_FILE_LOCKING) += locks.o
obj-$(CONFIG_COMPAT) += compat.o compat_ioctl.o
obj-$(CONFIG_BINFMT_AOUT) += binfmt_aout.o
@@ -90,6 +91,7 @@
obj-$(CONFIG_NFSD) += nfsd/
obj-$(CONFIG_LOCKD) += lockd/
obj-$(CONFIG_NLS) += nls/
+obj-$(CONFIG_UNICODE) += unicode/
obj-$(CONFIG_SYSV_FS) += sysv/
obj-$(CONFIG_CIFS) += cifs/
obj-$(CONFIG_HPFS_FS) += hpfs/
@@ -107,6 +109,7 @@
obj-$(CONFIG_FUSE_FS) += fuse/
obj-$(CONFIG_OVERLAY_FS) += overlayfs/
obj-$(CONFIG_ORANGEFS_FS) += orangefs/
+obj-$(CONFIG_INCREMENTAL_FS) += incfs/
obj-$(CONFIG_UDF_FS) += udf/
obj-$(CONFIG_SUN_OPENPROMFS) += openpromfs/
obj-$(CONFIG_OMFS_FS) += omfs/
diff --git a/fs/OWNERS b/fs/OWNERS
new file mode 100644
index 0000000..a838344
--- /dev/null
+++ b/fs/OWNERS
@@ -0,0 +1,2 @@
+# include OWNERS from the authoritative android-mainline branch
+include kernel/common:android-mainline:/fs/OWNERS
diff --git a/fs/block_dev.c b/fs/block_dev.c
index b34f76a..182ed1f 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -1925,6 +1925,9 @@ ssize_t blkdev_write_iter(struct kiocb *iocb, struct iov_iter *from)
if (bdev_read_only(I_BDEV(bd_inode)))
return -EPERM;
+ if (IS_SWAPFILE(bd_inode))
+ return -ETXTBSY;
+
if (!iov_iter_count(from))
return 0;
diff --git a/fs/buffer.c b/fs/buffer.c
index 356e289..2fa1ad5 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -46,6 +46,7 @@
#include <linux/pagevec.h>
#include <linux/sched/mm.h>
#include <trace/events/block.h>
+#include <linux/fscrypt.h>
static int fsync_buffers_list(spinlock_t *lock, struct list_head *list);
static int submit_bh_wbc(int op, int op_flags, struct buffer_head *bh,
@@ -3063,6 +3064,8 @@ static int submit_bh_wbc(int op, int op_flags, struct buffer_head *bh,
*/
bio = bio_alloc(GFP_NOIO, 1);
+ fscrypt_set_bio_crypt_ctx_bh(bio, bh, GFP_NOIO);
+
if (wbc) {
wbc_init_bio(wbc, bio);
wbc_account_io(wbc, bh->b_page, bh->b_size);
diff --git a/fs/crypto/Kconfig b/fs/crypto/Kconfig
index 02b7d91..97c0a11 100644
--- a/fs/crypto/Kconfig
+++ b/fs/crypto/Kconfig
@@ -1,16 +1,31 @@
config FS_ENCRYPTION
- tristate "FS Encryption (Per-file encryption)"
+ bool "FS Encryption (Per-file encryption)"
select CRYPTO
- select CRYPTO_AES
- select CRYPTO_CBC
- select CRYPTO_ECB
- select CRYPTO_XTS
- select CRYPTO_CTS
- select CRYPTO_CTR
- select CRYPTO_SHA256
+ select CRYPTO_HASH
+ select CRYPTO_BLKCIPHER
select KEYS
help
Enable encryption of files and directories. This
feature is similar to ecryptfs, but it is more memory
efficient since it avoids caching the encrypted and
- decrypted pages in the page cache.
+ decrypted pages in the page cache. Currently Ext4,
+ F2FS and UBIFS make use of this feature.
+
+# Filesystems supporting encryption must select this if FS_ENCRYPTION. This
+# allows the algorithms to be built as modules when all the filesystems are.
+config FS_ENCRYPTION_ALGS
+ tristate
+ select CRYPTO_AES
+ select CRYPTO_CBC
+ select CRYPTO_CTS
+ select CRYPTO_ECB
+ select CRYPTO_HMAC
+ select CRYPTO_SHA256
+ select CRYPTO_SHA512
+ select CRYPTO_XTS
+
+config FS_ENCRYPTION_INLINE_CRYPT
+ bool "Enable fscrypt to use inline crypto"
+ depends on FS_ENCRYPTION && BLK_INLINE_ENCRYPTION
+ help
+ Enable fscrypt to use inline encryption hardware if available.
diff --git a/fs/crypto/Makefile b/fs/crypto/Makefile
index cb49698..1a6b077 100644
--- a/fs/crypto/Makefile
+++ b/fs/crypto/Makefile
@@ -1,4 +1,13 @@
obj-$(CONFIG_FS_ENCRYPTION) += fscrypto.o
-fscrypto-y := crypto.o fname.o hooks.o keyinfo.o policy.o
+fscrypto-y := crypto.o \
+ fname.o \
+ hkdf.o \
+ hooks.o \
+ keyring.o \
+ keysetup.o \
+ keysetup_v1.o \
+ policy.o
+
fscrypto-$(CONFIG_BLOCK) += bio.o
+fscrypto-$(CONFIG_FS_ENCRYPTION_INLINE_CRYPT) += inline_crypt.o
diff --git a/fs/crypto/bio.c b/fs/crypto/bio.c
index 0959044..642b9d6 100644
--- a/fs/crypto/bio.c
+++ b/fs/crypto/bio.c
@@ -26,130 +26,170 @@
#include <linux/namei.h>
#include "fscrypt_private.h"
-static void __fscrypt_decrypt_bio(struct bio *bio, bool done)
+void fscrypt_decrypt_bio(struct bio *bio)
{
struct bio_vec *bv;
int i;
bio_for_each_segment_all(bv, bio, i) {
struct page *page = bv->bv_page;
- int ret = fscrypt_decrypt_page(page->mapping->host, page,
- PAGE_SIZE, 0, page->index);
-
- if (ret) {
- WARN_ON_ONCE(1);
+ int ret = fscrypt_decrypt_pagecache_blocks(page, bv->bv_len,
+ bv->bv_offset);
+ if (ret)
SetPageError(page);
- } else if (done) {
- SetPageUptodate(page);
- }
- if (done)
- unlock_page(page);
}
}
-
-void fscrypt_decrypt_bio(struct bio *bio)
-{
- __fscrypt_decrypt_bio(bio, false);
-}
EXPORT_SYMBOL(fscrypt_decrypt_bio);
-static void completion_pages(struct work_struct *work)
+static int fscrypt_zeroout_range_inlinecrypt(const struct inode *inode,
+ pgoff_t lblk,
+ sector_t pblk, unsigned int len)
{
- struct fscrypt_ctx *ctx =
- container_of(work, struct fscrypt_ctx, r.work);
- struct bio *bio = ctx->r.bio;
-
- __fscrypt_decrypt_bio(bio, true);
- fscrypt_release_ctx(ctx);
- bio_put(bio);
-}
-
-void fscrypt_enqueue_decrypt_bio(struct fscrypt_ctx *ctx, struct bio *bio)
-{
- INIT_WORK(&ctx->r.work, completion_pages);
- ctx->r.bio = bio;
- fscrypt_enqueue_decrypt_work(&ctx->r.work);
-}
-EXPORT_SYMBOL(fscrypt_enqueue_decrypt_bio);
-
-void fscrypt_pullback_bio_page(struct page **page, bool restore)
-{
- struct fscrypt_ctx *ctx;
- struct page *bounce_page;
-
- /* The bounce data pages are unmapped. */
- if ((*page)->mapping)
- return;
-
- /* The bounce data page is unmapped. */
- bounce_page = *page;
- ctx = (struct fscrypt_ctx *)page_private(bounce_page);
-
- /* restore control page */
- *page = ctx->w.control_page;
-
- if (restore)
- fscrypt_restore_control_page(bounce_page);
-}
-EXPORT_SYMBOL(fscrypt_pullback_bio_page);
-
-int fscrypt_zeroout_range(const struct inode *inode, pgoff_t lblk,
- sector_t pblk, unsigned int len)
-{
- struct fscrypt_ctx *ctx;
- struct page *ciphertext_page = NULL;
+ const unsigned int blockbits = inode->i_blkbits;
+ const unsigned int blocks_per_page_bits = PAGE_SHIFT - blockbits;
+ const unsigned int blocks_per_page = 1 << blocks_per_page_bits;
+ unsigned int i;
struct bio *bio;
- int ret, err = 0;
+ int ret, err;
- BUG_ON(inode->i_sb->s_blocksize != PAGE_SIZE);
+ /* This always succeeds since __GFP_DIRECT_RECLAIM is set. */
+ bio = bio_alloc(GFP_NOFS, BIO_MAX_PAGES);
- ctx = fscrypt_get_ctx(inode, GFP_NOFS);
- if (IS_ERR(ctx))
- return PTR_ERR(ctx);
-
- ciphertext_page = fscrypt_alloc_bounce_page(ctx, GFP_NOWAIT);
- if (IS_ERR(ciphertext_page)) {
- err = PTR_ERR(ciphertext_page);
- goto errout;
- }
-
- while (len--) {
- err = fscrypt_do_page_crypto(inode, FS_ENCRYPT, lblk,
- ZERO_PAGE(0), ciphertext_page,
- PAGE_SIZE, 0, GFP_NOFS);
- if (err)
- goto errout;
-
- bio = bio_alloc(GFP_NOWAIT, 1);
- if (!bio) {
- err = -ENOMEM;
- goto errout;
- }
+ do {
bio_set_dev(bio, inode->i_sb->s_bdev);
- bio->bi_iter.bi_sector =
- pblk << (inode->i_sb->s_blocksize_bits - 9);
+ bio->bi_iter.bi_sector = pblk << (blockbits - 9);
bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
- ret = bio_add_page(bio, ciphertext_page,
- inode->i_sb->s_blocksize, 0);
- if (ret != inode->i_sb->s_blocksize) {
- /* should never happen! */
- WARN_ON(1);
- bio_put(bio);
- err = -EIO;
- goto errout;
- }
+ fscrypt_set_bio_crypt_ctx(bio, inode, lblk, GFP_NOFS);
+
+ i = 0;
+ do {
+ unsigned int blocks_this_page =
+ min(len, blocks_per_page);
+ unsigned int bytes_this_page =
+ blocks_this_page << blockbits;
+
+ ret = bio_add_page(bio, ZERO_PAGE(0),
+ bytes_this_page, 0);
+ if (WARN_ON(ret != bytes_this_page)) {
+ err = -EIO;
+ goto out;
+ }
+ lblk += blocks_this_page;
+ pblk += blocks_this_page;
+ len -= blocks_this_page;
+ } while (++i != BIO_MAX_PAGES && len != 0 &&
+ fscrypt_mergeable_bio(bio, inode, lblk));
+
err = submit_bio_wait(bio);
- if (err == 0 && bio->bi_status)
- err = -EIO;
- bio_put(bio);
if (err)
- goto errout;
- lblk++;
- pblk++;
- }
+ goto out;
+ bio_reset(bio);
+ } while (len != 0);
err = 0;
-errout:
- fscrypt_release_ctx(ctx);
+out:
+ bio_put(bio);
+ return err;
+}
+
+/**
+ * fscrypt_zeroout_range() - zero out a range of blocks in an encrypted file
+ * @inode: the file's inode
+ * @lblk: the first file logical block to zero out
+ * @pblk: the first filesystem physical block to zero out
+ * @len: number of blocks to zero out
+ *
+ * Zero out filesystem blocks in an encrypted regular file on-disk, i.e. write
+ * ciphertext blocks which decrypt to the all-zeroes block. The blocks must be
+ * both logically and physically contiguous. It's also assumed that the
+ * filesystem only uses a single block device, ->s_bdev.
+ *
+ * Note that since each block uses a different IV, this involves writing a
+ * different ciphertext to each block; we can't simply reuse the same one.
+ *
+ * Return: 0 on success; -errno on failure.
+ */
+int fscrypt_zeroout_range(const struct inode *inode, pgoff_t lblk,
+ sector_t pblk, unsigned int len)
+{
+ const unsigned int blockbits = inode->i_blkbits;
+ const unsigned int blocksize = 1 << blockbits;
+ const unsigned int blocks_per_page_bits = PAGE_SHIFT - blockbits;
+ const unsigned int blocks_per_page = 1 << blocks_per_page_bits;
+ struct page *pages[16]; /* write up to 16 pages at a time */
+ unsigned int nr_pages;
+ unsigned int i;
+ unsigned int offset;
+ struct bio *bio;
+ int ret, err;
+
+ if (len == 0)
+ return 0;
+
+ if (fscrypt_inode_uses_inline_crypto(inode))
+ return fscrypt_zeroout_range_inlinecrypt(inode, lblk, pblk,
+ len);
+
+ BUILD_BUG_ON(ARRAY_SIZE(pages) > BIO_MAX_PAGES);
+ nr_pages = min_t(unsigned int, ARRAY_SIZE(pages),
+ (len + blocks_per_page - 1) >> blocks_per_page_bits);
+
+ /*
+ * We need at least one page for ciphertext. Allocate the first one
+ * from a mempool, with __GFP_DIRECT_RECLAIM set so that it can't fail.
+ *
+ * Any additional page allocations are allowed to fail, as they only
+ * help performance, and waiting on the mempool for them could deadlock.
+ */
+ for (i = 0; i < nr_pages; i++) {
+ pages[i] = fscrypt_alloc_bounce_page(i == 0 ? GFP_NOFS :
+ GFP_NOWAIT | __GFP_NOWARN);
+ if (!pages[i])
+ break;
+ }
+ nr_pages = i;
+ if (WARN_ON(nr_pages <= 0))
+ return -EINVAL;
+
+ /* This always succeeds since __GFP_DIRECT_RECLAIM is set. */
+ bio = bio_alloc(GFP_NOFS, nr_pages);
+
+ do {
+ bio_set_dev(bio, inode->i_sb->s_bdev);
+ bio->bi_iter.bi_sector = pblk << (blockbits - 9);
+ bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
+
+ i = 0;
+ offset = 0;
+ do {
+ err = fscrypt_crypt_block(inode, FS_ENCRYPT, lblk,
+ ZERO_PAGE(0), pages[i],
+ blocksize, offset, GFP_NOFS);
+ if (err)
+ goto out;
+ lblk++;
+ pblk++;
+ len--;
+ offset += blocksize;
+ if (offset == PAGE_SIZE || len == 0) {
+ ret = bio_add_page(bio, pages[i++], offset, 0);
+ if (WARN_ON(ret != offset)) {
+ err = -EIO;
+ goto out;
+ }
+ offset = 0;
+ }
+ } while (i != nr_pages && len != 0);
+
+ err = submit_bio_wait(bio);
+ if (err)
+ goto out;
+ bio_reset(bio);
+ } while (len != 0);
+ err = 0;
+out:
+ bio_put(bio);
+ for (i = 0; i < nr_pages; i++)
+ fscrypt_free_bounce_page(pages[i]);
return err;
}
EXPORT_SYMBOL(fscrypt_zeroout_range);
diff --git a/fs/crypto/crypto.c b/fs/crypto/crypto.c
index 04a3c2c..b37811b 100644
--- a/fs/crypto/crypto.c
+++ b/fs/crypto/crypto.c
@@ -24,31 +24,20 @@
#include <linux/module.h>
#include <linux/scatterlist.h>
#include <linux/ratelimit.h>
-#include <linux/dcache.h>
-#include <linux/namei.h>
-#include <crypto/aes.h>
#include <crypto/skcipher.h>
#include "fscrypt_private.h"
static unsigned int num_prealloc_crypto_pages = 32;
-static unsigned int num_prealloc_crypto_ctxs = 128;
module_param(num_prealloc_crypto_pages, uint, 0444);
MODULE_PARM_DESC(num_prealloc_crypto_pages,
"Number of crypto pages to preallocate");
-module_param(num_prealloc_crypto_ctxs, uint, 0444);
-MODULE_PARM_DESC(num_prealloc_crypto_ctxs,
- "Number of crypto contexts to preallocate");
static mempool_t *fscrypt_bounce_page_pool = NULL;
-static LIST_HEAD(fscrypt_free_ctxs);
-static DEFINE_SPINLOCK(fscrypt_ctx_lock);
-
static struct workqueue_struct *fscrypt_read_workqueue;
static DEFINE_MUTEX(fscrypt_init_mutex);
-static struct kmem_cache *fscrypt_ctx_cachep;
struct kmem_cache *fscrypt_info_cachep;
void fscrypt_enqueue_decrypt_work(struct work_struct *work)
@@ -57,96 +46,68 @@ void fscrypt_enqueue_decrypt_work(struct work_struct *work)
}
EXPORT_SYMBOL(fscrypt_enqueue_decrypt_work);
-/**
- * fscrypt_release_ctx() - Releases an encryption context
- * @ctx: The encryption context to release.
- *
- * If the encryption context was allocated from the pre-allocated pool, returns
- * it to that pool. Else, frees it.
- *
- * If there's a bounce page in the context, this frees that.
- */
-void fscrypt_release_ctx(struct fscrypt_ctx *ctx)
+struct page *fscrypt_alloc_bounce_page(gfp_t gfp_flags)
{
- unsigned long flags;
-
- if (ctx->flags & FS_CTX_HAS_BOUNCE_BUFFER_FL && ctx->w.bounce_page) {
- mempool_free(ctx->w.bounce_page, fscrypt_bounce_page_pool);
- ctx->w.bounce_page = NULL;
- }
- ctx->w.control_page = NULL;
- if (ctx->flags & FS_CTX_REQUIRES_FREE_ENCRYPT_FL) {
- kmem_cache_free(fscrypt_ctx_cachep, ctx);
- } else {
- spin_lock_irqsave(&fscrypt_ctx_lock, flags);
- list_add(&ctx->free_list, &fscrypt_free_ctxs);
- spin_unlock_irqrestore(&fscrypt_ctx_lock, flags);
- }
+ return mempool_alloc(fscrypt_bounce_page_pool, gfp_flags);
}
-EXPORT_SYMBOL(fscrypt_release_ctx);
/**
- * fscrypt_get_ctx() - Gets an encryption context
- * @inode: The inode for which we are doing the crypto
- * @gfp_flags: The gfp flag for memory allocation
+ * fscrypt_free_bounce_page() - free a ciphertext bounce page
+ * @bounce_page: the bounce page to free, or NULL
*
- * Allocates and initializes an encryption context.
- *
- * Return: An allocated and initialized encryption context on success; error
- * value or NULL otherwise.
+ * Free a bounce page that was allocated by fscrypt_encrypt_pagecache_blocks(),
+ * or by fscrypt_alloc_bounce_page() directly.
*/
-struct fscrypt_ctx *fscrypt_get_ctx(const struct inode *inode, gfp_t gfp_flags)
+void fscrypt_free_bounce_page(struct page *bounce_page)
{
- struct fscrypt_ctx *ctx = NULL;
- struct fscrypt_info *ci = inode->i_crypt_info;
- unsigned long flags;
-
- if (ci == NULL)
- return ERR_PTR(-ENOKEY);
-
- /*
- * We first try getting the ctx from a free list because in
- * the common case the ctx will have an allocated and
- * initialized crypto tfm, so it's probably a worthwhile
- * optimization. For the bounce page, we first try getting it
- * from the kernel allocator because that's just about as fast
- * as getting it from a list and because a cache of free pages
- * should generally be a "last resort" option for a filesystem
- * to be able to do its job.
- */
- spin_lock_irqsave(&fscrypt_ctx_lock, flags);
- ctx = list_first_entry_or_null(&fscrypt_free_ctxs,
- struct fscrypt_ctx, free_list);
- if (ctx)
- list_del(&ctx->free_list);
- spin_unlock_irqrestore(&fscrypt_ctx_lock, flags);
- if (!ctx) {
- ctx = kmem_cache_zalloc(fscrypt_ctx_cachep, gfp_flags);
- if (!ctx)
- return ERR_PTR(-ENOMEM);
- ctx->flags |= FS_CTX_REQUIRES_FREE_ENCRYPT_FL;
- } else {
- ctx->flags &= ~FS_CTX_REQUIRES_FREE_ENCRYPT_FL;
- }
- ctx->flags &= ~FS_CTX_HAS_BOUNCE_BUFFER_FL;
- return ctx;
+ if (!bounce_page)
+ return;
+ set_page_private(bounce_page, (unsigned long)NULL);
+ ClearPagePrivate(bounce_page);
+ mempool_free(bounce_page, fscrypt_bounce_page_pool);
}
-EXPORT_SYMBOL(fscrypt_get_ctx);
+EXPORT_SYMBOL(fscrypt_free_bounce_page);
-int fscrypt_do_page_crypto(const struct inode *inode, fscrypt_direction_t rw,
- u64 lblk_num, struct page *src_page,
- struct page *dest_page, unsigned int len,
- unsigned int offs, gfp_t gfp_flags)
+/*
+ * Generate the IV for the given logical block number within the given file.
+ * For filenames encryption, lblk_num == 0.
+ *
+ * Keep this in sync with fscrypt_limit_dio_pages(). fscrypt_limit_dio_pages()
+ * needs to know about any IV generation methods where the low bits of IV don't
+ * simply contain the lblk_num (e.g., IV_INO_LBLK_32).
+ */
+void fscrypt_generate_iv(union fscrypt_iv *iv, u64 lblk_num,
+ const struct fscrypt_info *ci)
{
- struct {
- __le64 index;
- u8 padding[FS_IV_SIZE - sizeof(__le64)];
- } iv;
+ u8 flags = fscrypt_policy_flags(&ci->ci_policy);
+
+ memset(iv, 0, ci->ci_mode->ivsize);
+
+ if (flags & FSCRYPT_POLICY_FLAG_IV_INO_LBLK_64) {
+ WARN_ON_ONCE(lblk_num > U32_MAX);
+ WARN_ON_ONCE(ci->ci_inode->i_ino > U32_MAX);
+ lblk_num |= (u64)ci->ci_inode->i_ino << 32;
+ } else if (flags & FSCRYPT_POLICY_FLAG_IV_INO_LBLK_32) {
+ WARN_ON_ONCE(lblk_num > U32_MAX);
+ lblk_num = (u32)(ci->ci_hashed_ino + lblk_num);
+ } else if (flags & FSCRYPT_POLICY_FLAG_DIRECT_KEY) {
+ memcpy(iv->nonce, ci->ci_nonce, FS_KEY_DERIVATION_NONCE_SIZE);
+ }
+ iv->lblk_num = cpu_to_le64(lblk_num);
+}
+
+/* Encrypt or decrypt a single filesystem block of file contents */
+int fscrypt_crypt_block(const struct inode *inode, fscrypt_direction_t rw,
+ u64 lblk_num, struct page *src_page,
+ struct page *dest_page, unsigned int len,
+ unsigned int offs, gfp_t gfp_flags)
+{
+ union fscrypt_iv iv;
struct skcipher_request *req = NULL;
DECLARE_CRYPTO_WAIT(wait);
struct scatterlist dst, src;
struct fscrypt_info *ci = inode->i_crypt_info;
- struct crypto_skcipher *tfm = ci->ci_ctfm;
+ struct crypto_skcipher *tfm = ci->ci_key.tfm;
int res = 0;
if (WARN_ON_ONCE(len <= 0))
@@ -154,15 +115,7 @@ int fscrypt_do_page_crypto(const struct inode *inode, fscrypt_direction_t rw,
if (WARN_ON_ONCE(len % FS_CRYPTO_BLOCK_SIZE != 0))
return -EINVAL;
- BUILD_BUG_ON(sizeof(iv) != FS_IV_SIZE);
- BUILD_BUG_ON(AES_BLOCK_SIZE != FS_IV_SIZE);
- iv.index = cpu_to_le64(lblk_num);
- memset(iv.padding, 0, sizeof(iv.padding));
-
- if (ci->ci_essiv_tfm != NULL) {
- crypto_cipher_encrypt_one(ci->ci_essiv_tfm, (u8 *)&iv,
- (u8 *)&iv);
- }
+ fscrypt_generate_iv(&iv, lblk_num, ci);
req = skcipher_request_alloc(tfm, gfp_flags);
if (!req)
@@ -183,206 +136,172 @@ int fscrypt_do_page_crypto(const struct inode *inode, fscrypt_direction_t rw,
res = crypto_wait_req(crypto_skcipher_encrypt(req), &wait);
skcipher_request_free(req);
if (res) {
- fscrypt_err(inode->i_sb,
- "%scryption failed for inode %lu, block %llu: %d",
- (rw == FS_DECRYPT ? "de" : "en"),
- inode->i_ino, lblk_num, res);
+ fscrypt_err(inode, "%scryption failed for block %llu: %d",
+ (rw == FS_DECRYPT ? "De" : "En"), lblk_num, res);
return res;
}
return 0;
}
-struct page *fscrypt_alloc_bounce_page(struct fscrypt_ctx *ctx,
- gfp_t gfp_flags)
-{
- ctx->w.bounce_page = mempool_alloc(fscrypt_bounce_page_pool, gfp_flags);
- if (ctx->w.bounce_page == NULL)
- return ERR_PTR(-ENOMEM);
- ctx->flags |= FS_CTX_HAS_BOUNCE_BUFFER_FL;
- return ctx->w.bounce_page;
-}
-
/**
- * fscypt_encrypt_page() - Encrypts a page
- * @inode: The inode for which the encryption should take place
- * @page: The page to encrypt. Must be locked for bounce-page
- * encryption.
- * @len: Length of data to encrypt in @page and encrypted
- * data in returned page.
- * @offs: Offset of data within @page and returned
- * page holding encrypted data.
- * @lblk_num: Logical block number. This must be unique for multiple
- * calls with same inode, except when overwriting
- * previously written data.
- * @gfp_flags: The gfp flag for memory allocation
+ * fscrypt_encrypt_pagecache_blocks() - Encrypt filesystem blocks from a
+ * pagecache page
+ * @page: The locked pagecache page containing the block(s) to encrypt
+ * @len: Total size of the block(s) to encrypt. Must be a nonzero
+ * multiple of the filesystem's block size.
+ * @offs: Byte offset within @page of the first block to encrypt. Must be
+ * a multiple of the filesystem's block size.
+ * @gfp_flags: Memory allocation flags. See details below.
*
- * Encrypts @page using the ctx encryption context. Performs encryption
- * either in-place or into a newly allocated bounce page.
- * Called on the page write path.
+ * A new bounce page is allocated, and the specified block(s) are encrypted into
+ * it. In the bounce page, the ciphertext block(s) will be located at the same
+ * offsets at which the plaintext block(s) were located in the source page; any
+ * other parts of the bounce page will be left uninitialized. However, normally
+ * blocksize == PAGE_SIZE and the whole page is encrypted at once.
*
- * Bounce page allocation is the default.
- * In this case, the contents of @page are encrypted and stored in an
- * allocated bounce page. @page has to be locked and the caller must call
- * fscrypt_restore_control_page() on the returned ciphertext page to
- * release the bounce buffer and the encryption context.
+ * This is for use by the filesystem's ->writepages() method.
*
- * In-place encryption is used by setting the FS_CFLG_OWN_PAGES flag in
- * fscrypt_operations. Here, the input-page is returned with its content
- * encrypted.
+ * The bounce page allocation is mempool-backed, so it will always succeed when
+ * @gfp_flags includes __GFP_DIRECT_RECLAIM, e.g. when it's GFP_NOFS. However,
+ * only the first page of each bio can be allocated this way. To prevent
+ * deadlocks, for any additional pages a mask like GFP_NOWAIT must be used.
*
- * Return: A page with the encrypted content on success. Else, an
- * error value or NULL.
+ * Return: the new encrypted bounce page on success; an ERR_PTR() on failure
*/
-struct page *fscrypt_encrypt_page(const struct inode *inode,
- struct page *page,
- unsigned int len,
- unsigned int offs,
- u64 lblk_num, gfp_t gfp_flags)
+struct page *fscrypt_encrypt_pagecache_blocks(struct page *page,
+ unsigned int len,
+ unsigned int offs,
+ gfp_t gfp_flags)
{
- struct fscrypt_ctx *ctx;
- struct page *ciphertext_page = page;
+ const struct inode *inode = page->mapping->host;
+ const unsigned int blockbits = inode->i_blkbits;
+ const unsigned int blocksize = 1 << blockbits;
+ struct page *ciphertext_page;
+ u64 lblk_num = ((u64)page->index << (PAGE_SHIFT - blockbits)) +
+ (offs >> blockbits);
+ unsigned int i;
int err;
- if (inode->i_sb->s_cop->flags & FS_CFLG_OWN_PAGES) {
- /* with inplace-encryption we just encrypt the page */
- err = fscrypt_do_page_crypto(inode, FS_ENCRYPT, lblk_num, page,
- ciphertext_page, len, offs,
- gfp_flags);
- if (err)
- return ERR_PTR(err);
-
- return ciphertext_page;
- }
-
if (WARN_ON_ONCE(!PageLocked(page)))
return ERR_PTR(-EINVAL);
- ctx = fscrypt_get_ctx(inode, gfp_flags);
- if (IS_ERR(ctx))
- return (struct page *)ctx;
+ if (WARN_ON_ONCE(len <= 0 || !IS_ALIGNED(len | offs, blocksize)))
+ return ERR_PTR(-EINVAL);
- /* The encryption operation will require a bounce page. */
- ciphertext_page = fscrypt_alloc_bounce_page(ctx, gfp_flags);
- if (IS_ERR(ciphertext_page))
- goto errout;
+ ciphertext_page = fscrypt_alloc_bounce_page(gfp_flags);
+ if (!ciphertext_page)
+ return ERR_PTR(-ENOMEM);
- ctx->w.control_page = page;
- err = fscrypt_do_page_crypto(inode, FS_ENCRYPT, lblk_num,
- page, ciphertext_page, len, offs,
- gfp_flags);
- if (err) {
- ciphertext_page = ERR_PTR(err);
- goto errout;
+ for (i = offs; i < offs + len; i += blocksize, lblk_num++) {
+ err = fscrypt_crypt_block(inode, FS_ENCRYPT, lblk_num,
+ page, ciphertext_page,
+ blocksize, i, gfp_flags);
+ if (err) {
+ fscrypt_free_bounce_page(ciphertext_page);
+ return ERR_PTR(err);
+ }
}
SetPagePrivate(ciphertext_page);
- set_page_private(ciphertext_page, (unsigned long)ctx);
- lock_page(ciphertext_page);
- return ciphertext_page;
-
-errout:
- fscrypt_release_ctx(ctx);
+ set_page_private(ciphertext_page, (unsigned long)page);
return ciphertext_page;
}
-EXPORT_SYMBOL(fscrypt_encrypt_page);
+EXPORT_SYMBOL(fscrypt_encrypt_pagecache_blocks);
/**
- * fscrypt_decrypt_page() - Decrypts a page in-place
- * @inode: The corresponding inode for the page to decrypt.
- * @page: The page to decrypt. Must be locked in case
- * it is a writeback page (FS_CFLG_OWN_PAGES unset).
- * @len: Number of bytes in @page to be decrypted.
- * @offs: Start of data in @page.
- * @lblk_num: Logical block number.
+ * fscrypt_encrypt_block_inplace() - Encrypt a filesystem block in-place
+ * @inode: The inode to which this block belongs
+ * @page: The page containing the block to encrypt
+ * @len: Size of block to encrypt. Doesn't need to be a multiple of the
+ * fs block size, but must be a multiple of FS_CRYPTO_BLOCK_SIZE.
+ * @offs: Byte offset within @page at which the block to encrypt begins
+ * @lblk_num: Filesystem logical block number of the block, i.e. the 0-based
+ * number of the block within the file
+ * @gfp_flags: Memory allocation flags
*
- * Decrypts page in-place using the ctx encryption context.
+ * Encrypt a possibly-compressed filesystem block that is located in an
+ * arbitrary page, not necessarily in the original pagecache page. The @inode
+ * and @lblk_num must be specified, as they can't be determined from @page.
*
- * Called from the read completion callback.
- *
- * Return: Zero on success, non-zero otherwise.
+ * Return: 0 on success; -errno on failure
*/
-int fscrypt_decrypt_page(const struct inode *inode, struct page *page,
- unsigned int len, unsigned int offs, u64 lblk_num)
+int fscrypt_encrypt_block_inplace(const struct inode *inode, struct page *page,
+ unsigned int len, unsigned int offs,
+ u64 lblk_num, gfp_t gfp_flags)
{
- if (WARN_ON_ONCE(!PageLocked(page) &&
- !(inode->i_sb->s_cop->flags & FS_CFLG_OWN_PAGES)))
+ return fscrypt_crypt_block(inode, FS_ENCRYPT, lblk_num, page, page,
+ len, offs, gfp_flags);
+}
+EXPORT_SYMBOL(fscrypt_encrypt_block_inplace);
+
+/**
+ * fscrypt_decrypt_pagecache_blocks() - Decrypt filesystem blocks in a
+ * pagecache page
+ * @page: The locked pagecache page containing the block(s) to decrypt
+ * @len: Total size of the block(s) to decrypt. Must be a nonzero
+ * multiple of the filesystem's block size.
+ * @offs: Byte offset within @page of the first block to decrypt. Must be
+ * a multiple of the filesystem's block size.
+ *
+ * The specified block(s) are decrypted in-place within the pagecache page,
+ * which must still be locked and not uptodate. Normally, blocksize ==
+ * PAGE_SIZE and the whole page is decrypted at once.
+ *
+ * This is for use by the filesystem's ->readpages() method.
+ *
+ * Return: 0 on success; -errno on failure
+ */
+int fscrypt_decrypt_pagecache_blocks(struct page *page, unsigned int len,
+ unsigned int offs)
+{
+ const struct inode *inode = page->mapping->host;
+ const unsigned int blockbits = inode->i_blkbits;
+ const unsigned int blocksize = 1 << blockbits;
+ u64 lblk_num = ((u64)page->index << (PAGE_SHIFT - blockbits)) +
+ (offs >> blockbits);
+ unsigned int i;
+ int err;
+
+ if (WARN_ON_ONCE(!PageLocked(page)))
return -EINVAL;
- return fscrypt_do_page_crypto(inode, FS_DECRYPT, lblk_num, page, page,
- len, offs, GFP_NOFS);
-}
-EXPORT_SYMBOL(fscrypt_decrypt_page);
+ if (WARN_ON_ONCE(len <= 0 || !IS_ALIGNED(len | offs, blocksize)))
+ return -EINVAL;
-/*
- * Validate dentries in encrypted directories to make sure we aren't potentially
- * caching stale dentries after a key has been added.
+ for (i = offs; i < offs + len; i += blocksize, lblk_num++) {
+ err = fscrypt_crypt_block(inode, FS_DECRYPT, lblk_num, page,
+ page, blocksize, i, GFP_NOFS);
+ if (err)
+ return err;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(fscrypt_decrypt_pagecache_blocks);
+
+/**
+ * fscrypt_decrypt_block_inplace() - Decrypt a filesystem block in-place
+ * @inode: The inode to which this block belongs
+ * @page: The page containing the block to decrypt
+ * @len: Size of block to decrypt. Doesn't need to be a multiple of the
+ * fs block size, but must be a multiple of FS_CRYPTO_BLOCK_SIZE.
+ * @offs: Byte offset within @page at which the block to decrypt begins
+ * @lblk_num: Filesystem logical block number of the block, i.e. the 0-based
+ * number of the block within the file
+ *
+ * Decrypt a possibly-compressed filesystem block that is located in an
+ * arbitrary page, not necessarily in the original pagecache page. The @inode
+ * and @lblk_num must be specified, as they can't be determined from @page.
+ *
+ * Return: 0 on success; -errno on failure
*/
-static int fscrypt_d_revalidate(struct dentry *dentry, unsigned int flags)
+int fscrypt_decrypt_block_inplace(const struct inode *inode, struct page *page,
+ unsigned int len, unsigned int offs,
+ u64 lblk_num)
{
- struct dentry *dir;
- int err;
- int valid;
-
- /*
- * Plaintext names are always valid, since fscrypt doesn't support
- * reverting to ciphertext names without evicting the directory's inode
- * -- which implies eviction of the dentries in the directory.
- */
- if (!(dentry->d_flags & DCACHE_ENCRYPTED_NAME))
- return 1;
-
- /*
- * Ciphertext name; valid if the directory's key is still unavailable.
- *
- * Although fscrypt forbids rename() on ciphertext names, we still must
- * use dget_parent() here rather than use ->d_parent directly. That's
- * because a corrupted fs image may contain directory hard links, which
- * the VFS handles by moving the directory's dentry tree in the dcache
- * each time ->lookup() finds the directory and it already has a dentry
- * elsewhere. Thus ->d_parent can be changing, and we must safely grab
- * a reference to some ->d_parent to prevent it from being freed.
- */
-
- if (flags & LOOKUP_RCU)
- return -ECHILD;
-
- dir = dget_parent(dentry);
- err = fscrypt_get_encryption_info(d_inode(dir));
- valid = !fscrypt_has_encryption_key(d_inode(dir));
- dput(dir);
-
- if (err < 0)
- return err;
-
- return valid;
+ return fscrypt_crypt_block(inode, FS_DECRYPT, lblk_num, page, page,
+ len, offs, GFP_NOFS);
}
-
-const struct dentry_operations fscrypt_d_ops = {
- .d_revalidate = fscrypt_d_revalidate,
-};
-
-void fscrypt_restore_control_page(struct page *page)
-{
- struct fscrypt_ctx *ctx;
-
- ctx = (struct fscrypt_ctx *)page_private(page);
- set_page_private(page, (unsigned long)NULL);
- ClearPagePrivate(page);
- unlock_page(page);
- fscrypt_release_ctx(ctx);
-}
-EXPORT_SYMBOL(fscrypt_restore_control_page);
-
-static void fscrypt_destroy(void)
-{
- struct fscrypt_ctx *pos, *n;
-
- list_for_each_entry_safe(pos, n, &fscrypt_free_ctxs, free_list)
- kmem_cache_free(fscrypt_ctx_cachep, pos);
- INIT_LIST_HEAD(&fscrypt_free_ctxs);
- mempool_destroy(fscrypt_bounce_page_pool);
- fscrypt_bounce_page_pool = NULL;
-}
+EXPORT_SYMBOL(fscrypt_decrypt_block_inplace);
/**
* fscrypt_initialize() - allocate major buffers for fs encryption.
@@ -391,11 +310,11 @@ static void fscrypt_destroy(void)
* We only call this when we start accessing encrypted files, since it
* results in memory getting allocated that wouldn't otherwise be used.
*
- * Return: Zero on success, non-zero otherwise.
+ * Return: 0 on success; -errno on failure
*/
int fscrypt_initialize(unsigned int cop_flags)
{
- int i, res = -ENOMEM;
+ int err = 0;
/* No need to allocate a bounce page pool if this FS won't use it. */
if (cop_flags & FS_CFLG_OWN_PAGES)
@@ -403,32 +322,21 @@ int fscrypt_initialize(unsigned int cop_flags)
mutex_lock(&fscrypt_init_mutex);
if (fscrypt_bounce_page_pool)
- goto already_initialized;
+ goto out_unlock;
- for (i = 0; i < num_prealloc_crypto_ctxs; i++) {
- struct fscrypt_ctx *ctx;
-
- ctx = kmem_cache_zalloc(fscrypt_ctx_cachep, GFP_NOFS);
- if (!ctx)
- goto fail;
- list_add(&ctx->free_list, &fscrypt_free_ctxs);
- }
-
+ err = -ENOMEM;
fscrypt_bounce_page_pool =
mempool_create_page_pool(num_prealloc_crypto_pages, 0);
if (!fscrypt_bounce_page_pool)
- goto fail;
+ goto out_unlock;
-already_initialized:
+ err = 0;
+out_unlock:
mutex_unlock(&fscrypt_init_mutex);
- return 0;
-fail:
- fscrypt_destroy();
- mutex_unlock(&fscrypt_init_mutex);
- return res;
+ return err;
}
-void fscrypt_msg(struct super_block *sb, const char *level,
+void fscrypt_msg(const struct inode *inode, const char *level,
const char *fmt, ...)
{
static DEFINE_RATELIMIT_STATE(rs, DEFAULT_RATELIMIT_INTERVAL,
@@ -442,8 +350,9 @@ void fscrypt_msg(struct super_block *sb, const char *level,
va_start(args, fmt);
vaf.fmt = fmt;
vaf.va = &args;
- if (sb)
- printk("%sfscrypt (%s): %pV\n", level, sb->s_id, &vaf);
+ if (inode)
+ printk("%sfscrypt (%s, inode %lu): %pV\n",
+ level, inode->i_sb->s_id, inode->i_ino, &vaf);
else
printk("%sfscrypt: %pV\n", level, &vaf);
va_end(args);
@@ -451,9 +360,13 @@ void fscrypt_msg(struct super_block *sb, const char *level,
/**
* fscrypt_init() - Set up for fs encryption.
+ *
+ * Return: 0 on success; -errno on failure
*/
static int __init fscrypt_init(void)
{
+ int err = -ENOMEM;
+
/*
* Use an unbound workqueue to allow bios to be decrypted in parallel
* even when they happen to complete on the same CPU. This sacrifices
@@ -468,39 +381,21 @@ static int __init fscrypt_init(void)
if (!fscrypt_read_workqueue)
goto fail;
- fscrypt_ctx_cachep = KMEM_CACHE(fscrypt_ctx, SLAB_RECLAIM_ACCOUNT);
- if (!fscrypt_ctx_cachep)
- goto fail_free_queue;
-
fscrypt_info_cachep = KMEM_CACHE(fscrypt_info, SLAB_RECLAIM_ACCOUNT);
if (!fscrypt_info_cachep)
- goto fail_free_ctx;
+ goto fail_free_queue;
+
+ err = fscrypt_init_keyring();
+ if (err)
+ goto fail_free_info;
return 0;
-fail_free_ctx:
- kmem_cache_destroy(fscrypt_ctx_cachep);
+fail_free_info:
+ kmem_cache_destroy(fscrypt_info_cachep);
fail_free_queue:
destroy_workqueue(fscrypt_read_workqueue);
fail:
- return -ENOMEM;
+ return err;
}
-module_init(fscrypt_init)
-
-/**
- * fscrypt_exit() - Shutdown the fs encryption system
- */
-static void __exit fscrypt_exit(void)
-{
- fscrypt_destroy();
-
- if (fscrypt_read_workqueue)
- destroy_workqueue(fscrypt_read_workqueue);
- kmem_cache_destroy(fscrypt_ctx_cachep);
- kmem_cache_destroy(fscrypt_info_cachep);
-
- fscrypt_essiv_cleanup();
-}
-module_exit(fscrypt_exit);
-
-MODULE_LICENSE("GPL");
+late_initcall(fscrypt_init)
diff --git a/fs/crypto/fname.c b/fs/crypto/fname.c
index 052c137..4a540af4 100644
--- a/fs/crypto/fname.c
+++ b/fs/crypto/fname.c
@@ -11,11 +11,88 @@
* This has not yet undergone a rigorous security audit.
*/
+#include <linux/namei.h>
#include <linux/scatterlist.h>
-#include <linux/ratelimit.h>
+#include <crypto/hash.h>
+#include <crypto/sha.h>
#include <crypto/skcipher.h>
#include "fscrypt_private.h"
+/*
+ * struct fscrypt_nokey_name - identifier for directory entry when key is absent
+ *
+ * When userspace lists an encrypted directory without access to the key, the
+ * filesystem must present a unique "no-key name" for each filename that allows
+ * it to find the directory entry again if requested. Naively, that would just
+ * mean using the ciphertext filenames. However, since the ciphertext filenames
+ * can contain illegal characters ('\0' and '/'), they must be encoded in some
+ * way. We use base64. But that can cause names to exceed NAME_MAX (255
+ * bytes), so we also need to use a strong hash to abbreviate long names.
+ *
+ * The filesystem may also need another kind of hash, the "dirhash", to quickly
+ * find the directory entry. Since filesystems normally compute the dirhash
+ * over the on-disk filename (i.e. the ciphertext), it's not computable from
+ * no-key names that abbreviate the ciphertext using the strong hash to fit in
+ * NAME_MAX. It's also not computable if it's a keyed hash taken over the
+ * plaintext (but it may still be available in the on-disk directory entry);
+ * casefolded directories use this type of dirhash. At least in these cases,
+ * each no-key name must include the name's dirhash too.
+ *
+ * To meet all these requirements, we base64-encode the following
+ * variable-length structure. It contains the dirhash, or 0's if the filesystem
+ * didn't provide one; up to 149 bytes of the ciphertext name; and for
+ * ciphertexts longer than 149 bytes, also the SHA-256 of the remaining bytes.
+ *
+ * This ensures that each no-key name contains everything needed to find the
+ * directory entry again, contains only legal characters, doesn't exceed
+ * NAME_MAX, is unambiguous unless there's a SHA-256 collision, and that we only
+ * take the performance hit of SHA-256 on very long filenames (which are rare).
+ */
+struct fscrypt_nokey_name {
+ u32 dirhash[2];
+ u8 bytes[149];
+ u8 sha256[SHA256_DIGEST_SIZE];
+}; /* 189 bytes => 252 bytes base64-encoded, which is <= NAME_MAX (255) */
+
+/*
+ * Decoded size of max-size nokey name, i.e. a name that was abbreviated using
+ * the strong hash and thus includes the 'sha256' field. This isn't simply
+ * sizeof(struct fscrypt_nokey_name), as the padding at the end isn't included.
+ */
+#define FSCRYPT_NOKEY_NAME_MAX offsetofend(struct fscrypt_nokey_name, sha256)
+
+static struct crypto_shash *sha256_hash_tfm;
+
+static int fscrypt_do_sha256(const u8 *data, unsigned int data_len, u8 *result)
+{
+ struct crypto_shash *tfm = READ_ONCE(sha256_hash_tfm);
+
+ if (unlikely(!tfm)) {
+ struct crypto_shash *prev_tfm;
+
+ tfm = crypto_alloc_shash("sha256", 0, 0);
+ if (IS_ERR(tfm)) {
+ fscrypt_err(NULL,
+ "Error allocating SHA-256 transform: %ld",
+ PTR_ERR(tfm));
+ return PTR_ERR(tfm);
+ }
+ prev_tfm = cmpxchg(&sha256_hash_tfm, NULL, tfm);
+ if (prev_tfm) {
+ crypto_free_shash(tfm);
+ tfm = prev_tfm;
+ }
+ }
+ {
+ SHASH_DESC_ON_STACK(desc, tfm);
+
+ desc->tfm = tfm;
+ desc->flags = 0;
+
+ return crypto_shash_digest(desc, data, data_len, result);
+ }
+}
+
static inline bool fscrypt_is_dot_dotdot(const struct qstr *str)
{
if (str->len == 1 && str->name[0] == '.')
@@ -28,22 +105,26 @@ static inline bool fscrypt_is_dot_dotdot(const struct qstr *str)
}
/**
- * fname_encrypt() - encrypt a filename
- *
- * The output buffer must be at least as large as the input buffer.
- * Any extra space is filled with NUL padding before encryption.
+ * fscrypt_fname_encrypt() - encrypt a filename
+ * @inode: inode of the parent directory (for regular filenames)
+ * or of the symlink (for symlink targets)
+ * @iname: the filename to encrypt
+ * @out: (output) the encrypted filename
+ * @olen: size of the encrypted filename. It must be at least @iname->len.
+ * Any extra space is filled with NUL padding before encryption.
*
* Return: 0 on success, -errno on failure
*/
-int fname_encrypt(struct inode *inode, const struct qstr *iname,
- u8 *out, unsigned int olen)
+int fscrypt_fname_encrypt(const struct inode *inode, const struct qstr *iname,
+ u8 *out, unsigned int olen)
{
struct skcipher_request *req = NULL;
DECLARE_CRYPTO_WAIT(wait);
- struct crypto_skcipher *tfm = inode->i_crypt_info->ci_ctfm;
- int res = 0;
- char iv[FS_CRYPTO_BLOCK_SIZE];
+ const struct fscrypt_info *ci = inode->i_crypt_info;
+ struct crypto_skcipher *tfm = ci->ci_key.tfm;
+ union fscrypt_iv iv;
struct scatterlist sg;
+ int res;
/*
* Copy the filename to the output buffer for encrypting in-place and
@@ -55,7 +136,7 @@ int fname_encrypt(struct inode *inode, const struct qstr *iname,
memset(out + iname->len, 0, olen - iname->len);
/* Initialize the IV */
- memset(iv, 0, FS_CRYPTO_BLOCK_SIZE);
+ fscrypt_generate_iv(&iv, 0, ci);
/* Set up the encryption request */
req = skcipher_request_alloc(tfm, GFP_NOFS);
@@ -65,15 +146,13 @@ int fname_encrypt(struct inode *inode, const struct qstr *iname,
CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP,
crypto_req_done, &wait);
sg_init_one(&sg, out, olen);
- skcipher_request_set_crypt(req, &sg, &sg, olen, iv);
+ skcipher_request_set_crypt(req, &sg, &sg, olen, &iv);
/* Do the encryption */
res = crypto_wait_req(crypto_skcipher_encrypt(req), &wait);
skcipher_request_free(req);
if (res < 0) {
- fscrypt_err(inode->i_sb,
- "Filename encryption failed for inode %lu: %d",
- inode->i_ino, res);
+ fscrypt_err(inode, "Filename encryption failed: %d", res);
return res;
}
@@ -82,21 +161,25 @@ int fname_encrypt(struct inode *inode, const struct qstr *iname,
/**
* fname_decrypt() - decrypt a filename
- *
- * The caller must have allocated sufficient memory for the @oname string.
+ * @inode: inode of the parent directory (for regular filenames)
+ * or of the symlink (for symlink targets)
+ * @iname: the encrypted filename to decrypt
+ * @oname: (output) the decrypted filename. The caller must have allocated
+ * enough space for this, e.g. using fscrypt_fname_alloc_buffer().
*
* Return: 0 on success, -errno on failure
*/
-static int fname_decrypt(struct inode *inode,
- const struct fscrypt_str *iname,
- struct fscrypt_str *oname)
+static int fname_decrypt(const struct inode *inode,
+ const struct fscrypt_str *iname,
+ struct fscrypt_str *oname)
{
struct skcipher_request *req = NULL;
DECLARE_CRYPTO_WAIT(wait);
struct scatterlist src_sg, dst_sg;
- struct crypto_skcipher *tfm = inode->i_crypt_info->ci_ctfm;
- int res = 0;
- char iv[FS_CRYPTO_BLOCK_SIZE];
+ const struct fscrypt_info *ci = inode->i_crypt_info;
+ struct crypto_skcipher *tfm = ci->ci_key.tfm;
+ union fscrypt_iv iv;
+ int res;
/* Allocate request */
req = skcipher_request_alloc(tfm, GFP_NOFS);
@@ -107,18 +190,16 @@ static int fname_decrypt(struct inode *inode,
crypto_req_done, &wait);
/* Initialize IV */
- memset(iv, 0, FS_CRYPTO_BLOCK_SIZE);
+ fscrypt_generate_iv(&iv, 0, ci);
/* Create decryption request */
sg_init_one(&src_sg, iname->name, iname->len);
sg_init_one(&dst_sg, oname->name, oname->len);
- skcipher_request_set_crypt(req, &src_sg, &dst_sg, iname->len, iv);
+ skcipher_request_set_crypt(req, &src_sg, &dst_sg, iname->len, &iv);
res = crypto_wait_req(crypto_skcipher_decrypt(req), &wait);
skcipher_request_free(req);
if (res < 0) {
- fscrypt_err(inode->i_sb,
- "Filename decryption failed for inode %lu: %d",
- inode->i_ino, res);
+ fscrypt_err(inode, "Filename decryption failed: %d", res);
return res;
}
@@ -126,44 +207,48 @@ static int fname_decrypt(struct inode *inode,
return 0;
}
-static const char *lookup_table =
+static const char lookup_table[65] =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+,";
#define BASE64_CHARS(nbytes) DIV_ROUND_UP((nbytes) * 4, 3)
/**
- * digest_encode() -
+ * base64_encode() - base64-encode some bytes
+ * @src: the bytes to encode
+ * @len: number of bytes to encode
+ * @dst: (output) the base64-encoded string. Not NUL-terminated.
*
- * Encodes the input digest using characters from the set [a-zA-Z0-9_+].
+ * Encodes the input string using characters from the set [A-Za-z0-9+,].
* The encoded string is roughly 4/3 times the size of the input string.
+ *
+ * Return: length of the encoded string
*/
-static int digest_encode(const char *src, int len, char *dst)
+static int base64_encode(const u8 *src, int len, char *dst)
{
- int i = 0, bits = 0, ac = 0;
+ int i, bits = 0, ac = 0;
char *cp = dst;
- while (i < len) {
- ac += (((unsigned char) src[i]) << bits);
+ for (i = 0; i < len; i++) {
+ ac += src[i] << bits;
bits += 8;
do {
*cp++ = lookup_table[ac & 0x3f];
ac >>= 6;
bits -= 6;
} while (bits >= 6);
- i++;
}
if (bits)
*cp++ = lookup_table[ac & 0x3f];
return cp - dst;
}
-static int digest_decode(const char *src, int len, char *dst)
+static int base64_decode(const char *src, int len, u8 *dst)
{
- int i = 0, bits = 0, ac = 0;
+ int i, bits = 0, ac = 0;
const char *p;
- char *cp = dst;
+ u8 *cp = dst;
- while (i < len) {
+ for (i = 0; i < len; i++) {
p = strchr(lookup_table, src[i]);
if (p == NULL || src[i] == 0)
return -2;
@@ -174,7 +259,6 @@ static int digest_decode(const char *src, int len, char *dst)
ac >>= 8;
bits -= 8;
}
- i++;
}
if (ac)
return -1;
@@ -184,8 +268,9 @@ static int digest_decode(const char *src, int len, char *dst)
bool fscrypt_fname_encrypted_size(const struct inode *inode, u32 orig_len,
u32 max_len, u32 *encrypted_len_ret)
{
- int padding = 4 << (inode->i_crypt_info->ci_flags &
- FS_POLICY_FLAGS_PAD_MASK);
+ const struct fscrypt_info *ci = inode->i_crypt_info;
+ int padding = 4 << (fscrypt_policy_flags(&ci->ci_policy) &
+ FSCRYPT_POLICY_FLAGS_PAD_MASK);
u32 encrypted_len;
if (orig_len > max_len)
@@ -197,7 +282,12 @@ bool fscrypt_fname_encrypted_size(const struct inode *inode, u32 orig_len,
}
/**
- * fscrypt_fname_alloc_buffer - allocate a buffer for presented filenames
+ * fscrypt_fname_alloc_buffer() - allocate a buffer for presented filenames
+ * @inode: inode of the parent directory (for regular filenames)
+ * or of the symlink (for symlink targets)
+ * @max_encrypted_len: maximum length of encrypted filenames the buffer will be
+ * used to present
+ * @crypto_str: (output) buffer to allocate
*
* Allocate a buffer that is large enough to hold any decrypted or encoded
* filename (null-terminated), for the given maximum encrypted filename length.
@@ -208,9 +298,7 @@ int fscrypt_fname_alloc_buffer(const struct inode *inode,
u32 max_encrypted_len,
struct fscrypt_str *crypto_str)
{
- const u32 max_encoded_len =
- max_t(u32, BASE64_CHARS(FSCRYPT_FNAME_MAX_UNDIGESTED_SIZE),
- 1 + BASE64_CHARS(sizeof(struct fscrypt_digested_name)));
+ const u32 max_encoded_len = BASE64_CHARS(FSCRYPT_NOKEY_NAME_MAX);
u32 max_presented_len;
max_presented_len = max(max_encoded_len, max_encrypted_len);
@@ -224,9 +312,10 @@ int fscrypt_fname_alloc_buffer(const struct inode *inode,
EXPORT_SYMBOL(fscrypt_fname_alloc_buffer);
/**
- * fscrypt_fname_free_buffer - free the buffer for presented filenames
+ * fscrypt_fname_free_buffer() - free a buffer for presented filenames
+ * @crypto_str: the buffer to free
*
- * Free the buffer allocated by fscrypt_fname_alloc_buffer().
+ * Free a buffer that was allocated by fscrypt_fname_alloc_buffer().
*/
void fscrypt_fname_free_buffer(struct fscrypt_str *crypto_str)
{
@@ -238,24 +327,35 @@ void fscrypt_fname_free_buffer(struct fscrypt_str *crypto_str)
EXPORT_SYMBOL(fscrypt_fname_free_buffer);
/**
- * fscrypt_fname_disk_to_usr() - converts a filename from disk space to user
- * space
+ * fscrypt_fname_disk_to_usr() - convert an encrypted filename to
+ * user-presentable form
+ * @inode: inode of the parent directory (for regular filenames)
+ * or of the symlink (for symlink targets)
+ * @hash: first part of the name's dirhash, if applicable. This only needs to
+ * be provided if the filename is located in an indexed directory whose
+ * encryption key may be unavailable. Not needed for symlink targets.
+ * @minor_hash: second part of the name's dirhash, if applicable
+ * @iname: encrypted filename to convert. May also be "." or "..", which
+ * aren't actually encrypted.
+ * @oname: output buffer for the user-presentable filename. The caller must
+ * have allocated enough space for this, e.g. using
+ * fscrypt_fname_alloc_buffer().
*
- * The caller must have allocated sufficient memory for the @oname string.
- *
- * If the key is available, we'll decrypt the disk name; otherwise, we'll encode
- * it for presentation. Short names are directly base64-encoded, while long
- * names are encoded in fscrypt_digested_name format.
+ * If the key is available, we'll decrypt the disk name. Otherwise, we'll
+ * encode it for presentation in fscrypt_nokey_name format.
+ * See struct fscrypt_nokey_name for details.
*
* Return: 0 on success, -errno on failure
*/
-int fscrypt_fname_disk_to_usr(struct inode *inode,
- u32 hash, u32 minor_hash,
- const struct fscrypt_str *iname,
- struct fscrypt_str *oname)
+int fscrypt_fname_disk_to_usr(const struct inode *inode,
+ u32 hash, u32 minor_hash,
+ const struct fscrypt_str *iname,
+ struct fscrypt_str *oname)
{
const struct qstr qname = FSTR_TO_QSTR(iname);
- struct fscrypt_digested_name digested_name;
+ struct fscrypt_nokey_name nokey_name;
+ u32 size; /* size of the unencoded no-key name */
+ int err;
if (fscrypt_is_dot_dotdot(&qname)) {
oname->name[0] = '.';
@@ -267,22 +367,35 @@ int fscrypt_fname_disk_to_usr(struct inode *inode,
if (iname->len < FS_CRYPTO_BLOCK_SIZE)
return -EUCLEAN;
- if (inode->i_crypt_info)
+ if (fscrypt_has_encryption_key(inode))
return fname_decrypt(inode, iname, oname);
- if (iname->len <= FSCRYPT_FNAME_MAX_UNDIGESTED_SIZE) {
- oname->len = digest_encode(iname->name, iname->len,
- oname->name);
- return 0;
+ /*
+ * Sanity check that struct fscrypt_nokey_name doesn't have padding
+ * between fields and that its encoded size never exceeds NAME_MAX.
+ */
+ BUILD_BUG_ON(offsetofend(struct fscrypt_nokey_name, dirhash) !=
+ offsetof(struct fscrypt_nokey_name, bytes));
+ BUILD_BUG_ON(offsetofend(struct fscrypt_nokey_name, bytes) !=
+ offsetof(struct fscrypt_nokey_name, sha256));
+ BUILD_BUG_ON(BASE64_CHARS(FSCRYPT_NOKEY_NAME_MAX) > NAME_MAX);
+
+ nokey_name.dirhash[0] = hash;
+ nokey_name.dirhash[1] = minor_hash;
+ if (iname->len <= sizeof(nokey_name.bytes)) {
+ memcpy(nokey_name.bytes, iname->name, iname->len);
+ size = offsetof(struct fscrypt_nokey_name, bytes[iname->len]);
+ } else {
+ memcpy(nokey_name.bytes, iname->name, sizeof(nokey_name.bytes));
+ /* Compute strong hash of remaining part of name. */
+ err = fscrypt_do_sha256(&iname->name[sizeof(nokey_name.bytes)],
+ iname->len - sizeof(nokey_name.bytes),
+ nokey_name.sha256);
+ if (err)
+ return err;
+ size = FSCRYPT_NOKEY_NAME_MAX;
}
- digested_name.hash = hash;
- digested_name.minor_hash = minor_hash;
- memcpy(digested_name.digest,
- FSCRYPT_FNAME_DIGEST(iname->name, iname->len),
- FSCRYPT_FNAME_DIGEST_SIZE);
- oname->name[0] = '_';
- oname->len = 1 + digest_encode((const char *)&digested_name,
- sizeof(digested_name), oname->name + 1);
+ oname->len = base64_encode((const u8 *)&nokey_name, size, oname->name);
return 0;
}
EXPORT_SYMBOL(fscrypt_fname_disk_to_usr);
@@ -303,8 +416,7 @@ EXPORT_SYMBOL(fscrypt_fname_disk_to_usr);
* get the disk_name.
*
* Else, for keyless @lookup operations, @iname is the presented ciphertext, so
- * we decode it to get either the ciphertext disk_name (for short names) or the
- * fscrypt_digested_name (for long names). Non-@lookup operations will be
+ * we decode it to get the fscrypt_nokey_name. Non-@lookup operations will be
* impossible in this case, so we fail them with ENOKEY.
*
* If successful, fscrypt_free_filename() must be called later to clean up.
@@ -314,8 +426,8 @@ EXPORT_SYMBOL(fscrypt_fname_disk_to_usr);
int fscrypt_setup_filename(struct inode *dir, const struct qstr *iname,
int lookup, struct fscrypt_name *fname)
{
+ struct fscrypt_nokey_name *nokey_name;
int ret;
- int digested;
memset(fname, 0, sizeof(struct fscrypt_name));
fname->usr_fname = iname;
@@ -329,7 +441,7 @@ int fscrypt_setup_filename(struct inode *dir, const struct qstr *iname,
if (ret)
return ret;
- if (dir->i_crypt_info) {
+ if (fscrypt_has_encryption_key(dir)) {
if (!fscrypt_fname_encrypted_size(dir, iname->len,
dir->i_sb->s_cop->max_namelen,
&fname->crypto_buf.len))
@@ -339,8 +451,8 @@ int fscrypt_setup_filename(struct inode *dir, const struct qstr *iname,
if (!fname->crypto_buf.name)
return -ENOMEM;
- ret = fname_encrypt(dir, iname, fname->crypto_buf.name,
- fname->crypto_buf.len);
+ ret = fscrypt_fname_encrypt(dir, iname, fname->crypto_buf.name,
+ fname->crypto_buf.len);
if (ret)
goto errout;
fname->disk_name.name = fname->crypto_buf.name;
@@ -355,40 +467,31 @@ int fscrypt_setup_filename(struct inode *dir, const struct qstr *iname,
* We don't have the key and we are doing a lookup; decode the
* user-supplied name
*/
- if (iname->name[0] == '_') {
- if (iname->len !=
- 1 + BASE64_CHARS(sizeof(struct fscrypt_digested_name)))
- return -ENOENT;
- digested = 1;
- } else {
- if (iname->len >
- BASE64_CHARS(FSCRYPT_FNAME_MAX_UNDIGESTED_SIZE))
- return -ENOENT;
- digested = 0;
- }
- fname->crypto_buf.name =
- kmalloc(max_t(size_t, FSCRYPT_FNAME_MAX_UNDIGESTED_SIZE,
- sizeof(struct fscrypt_digested_name)),
- GFP_KERNEL);
+ if (iname->len > BASE64_CHARS(FSCRYPT_NOKEY_NAME_MAX))
+ return -ENOENT;
+
+ fname->crypto_buf.name = kmalloc(FSCRYPT_NOKEY_NAME_MAX, GFP_KERNEL);
if (fname->crypto_buf.name == NULL)
return -ENOMEM;
- ret = digest_decode(iname->name + digested, iname->len - digested,
- fname->crypto_buf.name);
- if (ret < 0) {
+ ret = base64_decode(iname->name, iname->len, fname->crypto_buf.name);
+ if (ret < (int)offsetof(struct fscrypt_nokey_name, bytes[1]) ||
+ (ret > offsetof(struct fscrypt_nokey_name, sha256) &&
+ ret != FSCRYPT_NOKEY_NAME_MAX)) {
ret = -ENOENT;
goto errout;
}
fname->crypto_buf.len = ret;
- if (digested) {
- const struct fscrypt_digested_name *n =
- (const void *)fname->crypto_buf.name;
- fname->hash = n->hash;
- fname->minor_hash = n->minor_hash;
- } else {
- fname->disk_name.name = fname->crypto_buf.name;
- fname->disk_name.len = fname->crypto_buf.len;
+
+ nokey_name = (void *)fname->crypto_buf.name;
+ fname->hash = nokey_name->dirhash[0];
+ fname->minor_hash = nokey_name->dirhash[1];
+ if (ret != FSCRYPT_NOKEY_NAME_MAX) {
+ /* The full ciphertext filename is available. */
+ fname->disk_name.name = nokey_name->bytes;
+ fname->disk_name.len =
+ ret - offsetof(struct fscrypt_nokey_name, bytes);
}
return 0;
@@ -397,3 +500,106 @@ int fscrypt_setup_filename(struct inode *dir, const struct qstr *iname,
return ret;
}
EXPORT_SYMBOL(fscrypt_setup_filename);
+
+/**
+ * fscrypt_match_name() - test whether the given name matches a directory entry
+ * @fname: the name being searched for
+ * @de_name: the name from the directory entry
+ * @de_name_len: the length of @de_name in bytes
+ *
+ * Normally @fname->disk_name will be set, and in that case we simply compare
+ * that to the name stored in the directory entry. The only exception is that
+ * if we don't have the key for an encrypted directory and the name we're
+ * looking for is very long, then we won't have the full disk_name and instead
+ * we'll need to match against a fscrypt_nokey_name that includes a strong hash.
+ *
+ * Return: %true if the name matches, otherwise %false.
+ */
+bool fscrypt_match_name(const struct fscrypt_name *fname,
+ const u8 *de_name, u32 de_name_len)
+{
+ const struct fscrypt_nokey_name *nokey_name =
+ (const void *)fname->crypto_buf.name;
+ u8 sha256[SHA256_DIGEST_SIZE];
+
+ if (likely(fname->disk_name.name)) {
+ if (de_name_len != fname->disk_name.len)
+ return false;
+ return !memcmp(de_name, fname->disk_name.name, de_name_len);
+ }
+ if (de_name_len <= sizeof(nokey_name->bytes))
+ return false;
+ if (memcmp(de_name, nokey_name->bytes, sizeof(nokey_name->bytes)))
+ return false;
+ if (fscrypt_do_sha256(&de_name[sizeof(nokey_name->bytes)],
+ de_name_len - sizeof(nokey_name->bytes), sha256))
+ return false;
+ return !memcmp(sha256, nokey_name->sha256, sizeof(sha256));
+}
+EXPORT_SYMBOL_GPL(fscrypt_match_name);
+
+/**
+ * fscrypt_fname_siphash() - calculate the SipHash of a filename
+ * @dir: the parent directory
+ * @name: the filename to calculate the SipHash of
+ *
+ * Given a plaintext filename @name and a directory @dir which uses SipHash as
+ * its dirhash method and has had its fscrypt key set up, this function
+ * calculates the SipHash of that name using the directory's secret dirhash key.
+ *
+ * Return: the SipHash of @name using the hash key of @dir
+ */
+u64 fscrypt_fname_siphash(const struct inode *dir, const struct qstr *name)
+{
+ const struct fscrypt_info *ci = dir->i_crypt_info;
+
+ WARN_ON(!ci->ci_dirhash_key_initialized);
+
+ return siphash(name->name, name->len, &ci->ci_dirhash_key);
+}
+EXPORT_SYMBOL_GPL(fscrypt_fname_siphash);
+
+/*
+ * Validate dentries in encrypted directories to make sure we aren't potentially
+ * caching stale dentries after a key has been added.
+ */
+int fscrypt_d_revalidate(struct dentry *dentry, unsigned int flags)
+{
+ struct dentry *dir;
+ int err;
+ int valid;
+
+ /*
+ * Plaintext names are always valid, since fscrypt doesn't support
+ * reverting to ciphertext names without evicting the directory's inode
+ * -- which implies eviction of the dentries in the directory.
+ */
+ if (!(dentry->d_flags & DCACHE_ENCRYPTED_NAME))
+ return 1;
+
+ /*
+ * Ciphertext name; valid if the directory's key is still unavailable.
+ *
+ * Although fscrypt forbids rename() on ciphertext names, we still must
+ * use dget_parent() here rather than use ->d_parent directly. That's
+ * because a corrupted fs image may contain directory hard links, which
+ * the VFS handles by moving the directory's dentry tree in the dcache
+ * each time ->lookup() finds the directory and it already has a dentry
+ * elsewhere. Thus ->d_parent can be changing, and we must safely grab
+ * a reference to some ->d_parent to prevent it from being freed.
+ */
+
+ if (flags & LOOKUP_RCU)
+ return -ECHILD;
+
+ dir = dget_parent(dentry);
+ err = fscrypt_get_encryption_info(d_inode(dir));
+ valid = !fscrypt_has_encryption_key(d_inode(dir));
+ dput(dir);
+
+ if (err < 0)
+ return err;
+
+ return valid;
+}
+EXPORT_SYMBOL_GPL(fscrypt_d_revalidate);
diff --git a/fs/crypto/fscrypt_private.h b/fs/crypto/fscrypt_private.h
index 79debfc..beb3a61 100644
--- a/fs/crypto/fscrypt_private.h
+++ b/fs/crypto/fscrypt_private.h
@@ -4,45 +4,162 @@
*
* Copyright (C) 2015, Google, Inc.
*
- * This contains encryption key functions.
- *
- * Written by Michael Halcrow, Ildar Muslukhov, and Uday Savagaonkar, 2015.
+ * Originally written by Michael Halcrow, Ildar Muslukhov, and Uday Savagaonkar.
+ * Heavily modified since then.
*/
#ifndef _FSCRYPT_PRIVATE_H
#define _FSCRYPT_PRIVATE_H
-#define __FS_HAS_ENCRYPTION 1
#include <linux/fscrypt.h>
+#include <linux/siphash.h>
#include <crypto/hash.h>
+#include <linux/bio-crypt-ctx.h>
-/* Encryption parameters */
-#define FS_IV_SIZE 16
+#define CONST_STRLEN(str) (sizeof(str) - 1)
+
#define FS_KEY_DERIVATION_NONCE_SIZE 16
-/**
- * Encryption context for inode
- *
- * Protector format:
- * 1 byte: Protector format (1 = this version)
- * 1 byte: File contents encryption mode
- * 1 byte: File names encryption mode
- * 1 byte: Flags
- * 8 bytes: Master Key descriptor
- * 16 bytes: Encryption Key derivation nonce
- */
-struct fscrypt_context {
- u8 format;
+#define FSCRYPT_MIN_KEY_SIZE 16
+#define FSCRYPT_MAX_HW_WRAPPED_KEY_SIZE 128
+
+#define FSCRYPT_CONTEXT_V1 1
+#define FSCRYPT_CONTEXT_V2 2
+
+struct fscrypt_context_v1 {
+ u8 version; /* FSCRYPT_CONTEXT_V1 */
u8 contents_encryption_mode;
u8 filenames_encryption_mode;
u8 flags;
- u8 master_key_descriptor[FS_KEY_DESCRIPTOR_SIZE];
+ u8 master_key_descriptor[FSCRYPT_KEY_DESCRIPTOR_SIZE];
u8 nonce[FS_KEY_DERIVATION_NONCE_SIZE];
-} __packed;
+};
-#define FS_ENCRYPTION_CONTEXT_FORMAT_V1 1
+struct fscrypt_context_v2 {
+ u8 version; /* FSCRYPT_CONTEXT_V2 */
+ u8 contents_encryption_mode;
+ u8 filenames_encryption_mode;
+ u8 flags;
+ u8 __reserved[4];
+ u8 master_key_identifier[FSCRYPT_KEY_IDENTIFIER_SIZE];
+ u8 nonce[FS_KEY_DERIVATION_NONCE_SIZE];
+};
-/**
+/*
+ * fscrypt_context - the encryption context of an inode
+ *
+ * This is the on-disk equivalent of an fscrypt_policy, stored alongside each
+ * encrypted file usually in a hidden extended attribute. It contains the
+ * fields from the fscrypt_policy, in order to identify the encryption algorithm
+ * and key with which the file is encrypted. It also contains a nonce that was
+ * randomly generated by fscrypt itself; this is used as KDF input or as a tweak
+ * to cause different files to be encrypted differently.
+ */
+union fscrypt_context {
+ u8 version;
+ struct fscrypt_context_v1 v1;
+ struct fscrypt_context_v2 v2;
+};
+
+/*
+ * Return the size expected for the given fscrypt_context based on its version
+ * number, or 0 if the context version is unrecognized.
+ */
+static inline int fscrypt_context_size(const union fscrypt_context *ctx)
+{
+ switch (ctx->version) {
+ case FSCRYPT_CONTEXT_V1:
+ BUILD_BUG_ON(sizeof(ctx->v1) != 28);
+ return sizeof(ctx->v1);
+ case FSCRYPT_CONTEXT_V2:
+ BUILD_BUG_ON(sizeof(ctx->v2) != 40);
+ return sizeof(ctx->v2);
+ }
+ return 0;
+}
+
+/* Check whether an fscrypt_context has a recognized version number and size */
+static inline bool fscrypt_context_is_valid(const union fscrypt_context *ctx,
+ int ctx_size)
+{
+ return ctx_size >= 1 && ctx_size == fscrypt_context_size(ctx);
+}
+
+/* Retrieve the context's nonce, assuming the context was already validated */
+static inline const u8 *fscrypt_context_nonce(const union fscrypt_context *ctx)
+{
+ switch (ctx->version) {
+ case FSCRYPT_CONTEXT_V1:
+ return ctx->v1.nonce;
+ case FSCRYPT_CONTEXT_V2:
+ return ctx->v2.nonce;
+ }
+ WARN_ON(1);
+ return NULL;
+}
+
+#undef fscrypt_policy
+union fscrypt_policy {
+ u8 version;
+ struct fscrypt_policy_v1 v1;
+ struct fscrypt_policy_v2 v2;
+};
+
+/*
+ * Return the size expected for the given fscrypt_policy based on its version
+ * number, or 0 if the policy version is unrecognized.
+ */
+static inline int fscrypt_policy_size(const union fscrypt_policy *policy)
+{
+ switch (policy->version) {
+ case FSCRYPT_POLICY_V1:
+ return sizeof(policy->v1);
+ case FSCRYPT_POLICY_V2:
+ return sizeof(policy->v2);
+ }
+ return 0;
+}
+
+/* Return the contents encryption mode of a valid encryption policy */
+static inline u8
+fscrypt_policy_contents_mode(const union fscrypt_policy *policy)
+{
+ switch (policy->version) {
+ case FSCRYPT_POLICY_V1:
+ return policy->v1.contents_encryption_mode;
+ case FSCRYPT_POLICY_V2:
+ return policy->v2.contents_encryption_mode;
+ }
+ BUG();
+}
+
+/* Return the filenames encryption mode of a valid encryption policy */
+static inline u8
+fscrypt_policy_fnames_mode(const union fscrypt_policy *policy)
+{
+ switch (policy->version) {
+ case FSCRYPT_POLICY_V1:
+ return policy->v1.filenames_encryption_mode;
+ case FSCRYPT_POLICY_V2:
+ return policy->v2.filenames_encryption_mode;
+ }
+ BUG();
+}
+
+/* Return the flags (FSCRYPT_POLICY_FLAG*) of a valid encryption policy */
+static inline u8
+fscrypt_policy_flags(const union fscrypt_policy *policy)
+{
+ switch (policy->version) {
+ case FSCRYPT_POLICY_V1:
+ return policy->v1.flags;
+ case FSCRYPT_POLICY_V2:
+ return policy->v2.flags;
+ }
+ BUG();
+}
+
+/*
* For encrypted symlinks, the ciphertext length is stored at the beginning
* of the string in little-endian format.
*/
@@ -51,17 +168,87 @@ struct fscrypt_symlink_data {
char encrypted_path[1];
} __packed;
+/**
+ * struct fscrypt_prepared_key - a key prepared for actual encryption/decryption
+ * @tfm: crypto API transform object
+ * @blk_key: key for blk-crypto
+ *
+ * Normally only one of the fields will be non-NULL.
+ */
+struct fscrypt_prepared_key {
+ struct crypto_skcipher *tfm;
+#ifdef CONFIG_FS_ENCRYPTION_INLINE_CRYPT
+ struct fscrypt_blk_crypto_key *blk_key;
+#endif
+};
+
/*
- * A pointer to this structure is stored in the file system's in-core
- * representation of an inode.
+ * fscrypt_info - the "encryption key" for an inode
+ *
+ * When an encrypted file's key is made available, an instance of this struct is
+ * allocated and stored in ->i_crypt_info. Once created, it remains until the
+ * inode is evicted.
*/
struct fscrypt_info {
- u8 ci_data_mode;
- u8 ci_filename_mode;
- u8 ci_flags;
- struct crypto_skcipher *ci_ctfm;
- struct crypto_cipher *ci_essiv_tfm;
- u8 ci_master_key[FS_KEY_DESCRIPTOR_SIZE];
+
+ /* The key in a form prepared for actual encryption/decryption */
+ struct fscrypt_prepared_key ci_key;
+
+ /* True if the key should be freed when this fscrypt_info is freed */
+ bool ci_owns_key;
+
+#ifdef CONFIG_FS_ENCRYPTION_INLINE_CRYPT
+ /*
+ * True if this inode will use inline encryption (blk-crypto) instead of
+ * the traditional filesystem-layer encryption.
+ */
+ bool ci_inlinecrypt;
+#endif
+
+ /*
+ * Encryption mode used for this inode. It corresponds to either the
+ * contents or filenames encryption mode, depending on the inode type.
+ */
+ struct fscrypt_mode *ci_mode;
+
+ /* Back-pointer to the inode */
+ struct inode *ci_inode;
+
+ /*
+ * The master key with which this inode was unlocked (decrypted). This
+ * will be NULL if the master key was found in a process-subscribed
+ * keyring rather than in the filesystem-level keyring.
+ */
+ struct key *ci_master_key;
+
+ /*
+ * Link in list of inodes that were unlocked with the master key.
+ * Only used when ->ci_master_key is set.
+ */
+ struct list_head ci_master_key_link;
+
+ /*
+ * If non-NULL, then encryption is done using the master key directly
+ * and ci_key will equal ci_direct_key->dk_key.
+ */
+ struct fscrypt_direct_key *ci_direct_key;
+
+ /*
+ * This inode's hash key for filenames. This is a 128-bit SipHash-2-4
+ * key. This is only set for directories that use a keyed dirhash over
+ * the plaintext filenames -- currently just casefolded directories.
+ */
+ siphash_key_t ci_dirhash_key;
+ bool ci_dirhash_key_initialized;
+
+ /* The encryption policy used by this inode */
+ union fscrypt_policy ci_policy;
+
+ /* This inode's nonce, copied from the fscrypt_context */
+ u8 ci_nonce[FS_KEY_DERIVATION_NONCE_SIZE];
+
+ /* Hashed inode number. Only set for IV_INO_LBLK_32 */
+ u32 ci_hashed_ino;
};
typedef enum {
@@ -69,52 +256,371 @@ typedef enum {
FS_ENCRYPT,
} fscrypt_direction_t;
-#define FS_CTX_REQUIRES_FREE_ENCRYPT_FL 0x00000001
-#define FS_CTX_HAS_BOUNCE_BUFFER_FL 0x00000002
+/* crypto.c */
+extern struct kmem_cache *fscrypt_info_cachep;
+int fscrypt_initialize(unsigned int cop_flags);
+int fscrypt_crypt_block(const struct inode *inode, fscrypt_direction_t rw,
+ u64 lblk_num, struct page *src_page,
+ struct page *dest_page, unsigned int len,
+ unsigned int offs, gfp_t gfp_flags);
+struct page *fscrypt_alloc_bounce_page(gfp_t gfp_flags);
-static inline bool fscrypt_valid_enc_modes(u32 contents_mode,
- u32 filenames_mode)
+void __printf(3, 4) __cold
+fscrypt_msg(const struct inode *inode, const char *level, const char *fmt, ...);
+
+#define fscrypt_warn(inode, fmt, ...) \
+ fscrypt_msg((inode), KERN_WARNING, fmt, ##__VA_ARGS__)
+#define fscrypt_err(inode, fmt, ...) \
+ fscrypt_msg((inode), KERN_ERR, fmt, ##__VA_ARGS__)
+
+#define FSCRYPT_MAX_IV_SIZE 32
+
+union fscrypt_iv {
+ struct {
+ /* logical block number within the file */
+ __le64 lblk_num;
+
+ /* per-file nonce; only set in DIRECT_KEY mode */
+ u8 nonce[FS_KEY_DERIVATION_NONCE_SIZE];
+ };
+ u8 raw[FSCRYPT_MAX_IV_SIZE];
+ __le64 dun[FSCRYPT_MAX_IV_SIZE / sizeof(__le64)];
+};
+
+void fscrypt_generate_iv(union fscrypt_iv *iv, u64 lblk_num,
+ const struct fscrypt_info *ci);
+
+/* fname.c */
+int fscrypt_fname_encrypt(const struct inode *inode, const struct qstr *iname,
+ u8 *out, unsigned int olen);
+bool fscrypt_fname_encrypted_size(const struct inode *inode, u32 orig_len,
+ u32 max_len, u32 *encrypted_len_ret);
+
+/* hkdf.c */
+
+struct fscrypt_hkdf {
+ struct crypto_shash *hmac_tfm;
+};
+
+int fscrypt_init_hkdf(struct fscrypt_hkdf *hkdf, const u8 *master_key,
+ unsigned int master_key_size);
+
+/*
+ * The list of contexts in which fscrypt uses HKDF. These values are used as
+ * the first byte of the HKDF application-specific info string to guarantee that
+ * info strings are never repeated between contexts. This ensures that all HKDF
+ * outputs are unique and cryptographically isolated, i.e. knowledge of one
+ * output doesn't reveal another.
+ */
+#define HKDF_CONTEXT_KEY_IDENTIFIER 1
+#define HKDF_CONTEXT_PER_FILE_ENC_KEY 2
+#define HKDF_CONTEXT_DIRECT_KEY 3
+#define HKDF_CONTEXT_IV_INO_LBLK_64_KEY 4
+#define HKDF_CONTEXT_DIRHASH_KEY 5
+#define HKDF_CONTEXT_IV_INO_LBLK_32_KEY 6
+#define HKDF_CONTEXT_INODE_HASH_KEY 7
+
+int fscrypt_hkdf_expand(const struct fscrypt_hkdf *hkdf, u8 context,
+ const u8 *info, unsigned int infolen,
+ u8 *okm, unsigned int okmlen);
+
+void fscrypt_destroy_hkdf(struct fscrypt_hkdf *hkdf);
+
+/* inline_crypt.c */
+#ifdef CONFIG_FS_ENCRYPTION_INLINE_CRYPT
+extern int fscrypt_select_encryption_impl(struct fscrypt_info *ci,
+ bool is_hw_wrapped_key);
+
+static inline bool
+fscrypt_using_inline_encryption(const struct fscrypt_info *ci)
{
- if (contents_mode == FS_ENCRYPTION_MODE_AES_128_CBC &&
- filenames_mode == FS_ENCRYPTION_MODE_AES_128_CTS)
- return true;
+ return ci->ci_inlinecrypt;
+}
- if (contents_mode == FS_ENCRYPTION_MODE_AES_256_XTS &&
- filenames_mode == FS_ENCRYPTION_MODE_AES_256_CTS)
- return true;
+extern int fscrypt_prepare_inline_crypt_key(
+ struct fscrypt_prepared_key *prep_key,
+ const u8 *raw_key,
+ unsigned int raw_key_size,
+ bool is_hw_wrapped,
+ const struct fscrypt_info *ci);
+extern void fscrypt_destroy_inline_crypt_key(
+ struct fscrypt_prepared_key *prep_key);
+
+extern int fscrypt_derive_raw_secret(struct super_block *sb,
+ const u8 *wrapped_key,
+ unsigned int wrapped_key_size,
+ u8 *raw_secret,
+ unsigned int raw_secret_size);
+
+/*
+ * Check whether the crypto transform or blk-crypto key has been allocated in
+ * @prep_key, depending on which encryption implementation the file will use.
+ */
+static inline bool
+fscrypt_is_key_prepared(struct fscrypt_prepared_key *prep_key,
+ const struct fscrypt_info *ci)
+{
+ /*
+ * The two smp_load_acquire()'s here pair with the smp_store_release()'s
+ * in fscrypt_prepare_inline_crypt_key() and fscrypt_prepare_key().
+ * I.e., in some cases (namely, if this prep_key is a per-mode
+ * encryption key) another task can publish blk_key or tfm concurrently,
+ * executing a RELEASE barrier. We need to use smp_load_acquire() here
+ * to safely ACQUIRE the memory the other task published.
+ */
+ if (fscrypt_using_inline_encryption(ci))
+ return smp_load_acquire(&prep_key->blk_key) != NULL;
+ return smp_load_acquire(&prep_key->tfm) != NULL;
+}
+
+#else /* CONFIG_FS_ENCRYPTION_INLINE_CRYPT */
+
+static inline int fscrypt_select_encryption_impl(struct fscrypt_info *ci,
+ bool is_hw_wrapped_key)
+{
+ return 0;
+}
+
+static inline bool fscrypt_using_inline_encryption(
+ const struct fscrypt_info *ci)
+{
return false;
}
-/* crypto.c */
-extern struct kmem_cache *fscrypt_info_cachep;
-extern int fscrypt_initialize(unsigned int cop_flags);
-extern int fscrypt_do_page_crypto(const struct inode *inode,
- fscrypt_direction_t rw, u64 lblk_num,
- struct page *src_page,
- struct page *dest_page,
- unsigned int len, unsigned int offs,
- gfp_t gfp_flags);
-extern struct page *fscrypt_alloc_bounce_page(struct fscrypt_ctx *ctx,
- gfp_t gfp_flags);
-extern const struct dentry_operations fscrypt_d_ops;
+static inline int
+fscrypt_prepare_inline_crypt_key(struct fscrypt_prepared_key *prep_key,
+ const u8 *raw_key, unsigned int raw_key_size,
+ bool is_hw_wrapped,
+ const struct fscrypt_info *ci)
+{
+ WARN_ON(1);
+ return -EOPNOTSUPP;
+}
-extern void __printf(3, 4) __cold
-fscrypt_msg(struct super_block *sb, const char *level, const char *fmt, ...);
+static inline void
+fscrypt_destroy_inline_crypt_key(struct fscrypt_prepared_key *prep_key)
+{
+}
-#define fscrypt_warn(sb, fmt, ...) \
- fscrypt_msg(sb, KERN_WARNING, fmt, ##__VA_ARGS__)
-#define fscrypt_err(sb, fmt, ...) \
- fscrypt_msg(sb, KERN_ERR, fmt, ##__VA_ARGS__)
+static inline int fscrypt_derive_raw_secret(struct super_block *sb,
+ const u8 *wrapped_key,
+ unsigned int wrapped_key_size,
+ u8 *raw_secret,
+ unsigned int raw_secret_size)
+{
+ fscrypt_warn(NULL,
+ "kernel built without support for hardware-wrapped keys");
+ return -EOPNOTSUPP;
+}
-/* fname.c */
-extern int fname_encrypt(struct inode *inode, const struct qstr *iname,
- u8 *out, unsigned int olen);
-extern bool fscrypt_fname_encrypted_size(const struct inode *inode,
- u32 orig_len, u32 max_len,
- u32 *encrypted_len_ret);
+static inline bool
+fscrypt_is_key_prepared(struct fscrypt_prepared_key *prep_key,
+ const struct fscrypt_info *ci)
+{
+ return smp_load_acquire(&prep_key->tfm) != NULL;
+}
+#endif /* !CONFIG_FS_ENCRYPTION_INLINE_CRYPT */
-/* keyinfo.c */
-extern void __exit fscrypt_essiv_cleanup(void);
+/* keyring.c */
+
+/*
+ * fscrypt_master_key_secret - secret key material of an in-use master key
+ */
+struct fscrypt_master_key_secret {
+
+ /*
+ * For v2 policy keys: HKDF context keyed by this master key.
+ * For v1 policy keys: not set (hkdf.hmac_tfm == NULL).
+ */
+ struct fscrypt_hkdf hkdf;
+
+ /* Size of the raw key in bytes. Set even if ->raw isn't set. */
+ u32 size;
+
+ /* True if the key in ->raw is a hardware-wrapped key. */
+ bool is_hw_wrapped;
+
+ /*
+ * For v1 policy keys: the raw key. Wiped for v2 policy keys, unless
+ * ->is_hw_wrapped is true, in which case this contains the wrapped key
+ * rather than the key with which 'hkdf' was keyed.
+ */
+ u8 raw[FSCRYPT_MAX_HW_WRAPPED_KEY_SIZE];
+
+} __randomize_layout;
+
+/*
+ * fscrypt_master_key - an in-use master key
+ *
+ * This represents a master encryption key which has been added to the
+ * filesystem and can be used to "unlock" the encrypted files which were
+ * encrypted with it.
+ */
+struct fscrypt_master_key {
+
+ /*
+ * The secret key material. After FS_IOC_REMOVE_ENCRYPTION_KEY is
+ * executed, this is wiped and no new inodes can be unlocked with this
+ * key; however, there may still be inodes in ->mk_decrypted_inodes
+ * which could not be evicted. As long as some inodes still remain,
+ * FS_IOC_REMOVE_ENCRYPTION_KEY can be retried, or
+ * FS_IOC_ADD_ENCRYPTION_KEY can add the secret again.
+ *
+ * Locking: protected by key->sem (outer) and mk_secret_sem (inner).
+ * The reason for two locks is that key->sem also protects modifying
+ * mk_users, which ranks it above the semaphore for the keyring key
+ * type, which is in turn above page faults (via keyring_read). But
+ * sometimes filesystems call fscrypt_get_encryption_info() from within
+ * a transaction, which ranks it below page faults. So we need a
+ * separate lock which protects mk_secret but not also mk_users.
+ */
+ struct fscrypt_master_key_secret mk_secret;
+ struct rw_semaphore mk_secret_sem;
+
+ /*
+ * For v1 policy keys: an arbitrary key descriptor which was assigned by
+ * userspace (->descriptor).
+ *
+ * For v2 policy keys: a cryptographic hash of this key (->identifier).
+ */
+ struct fscrypt_key_specifier mk_spec;
+
+ /*
+ * Keyring which contains a key of type 'key_type_fscrypt_user' for each
+ * user who has added this key. Normally each key will be added by just
+ * one user, but it's possible that multiple users share a key, and in
+ * that case we need to keep track of those users so that one user can't
+ * remove the key before the others want it removed too.
+ *
+ * This is NULL for v1 policy keys; those can only be added by root.
+ *
+ * Locking: in addition to this keyrings own semaphore, this is
+ * protected by the master key's key->sem, so we can do atomic
+ * search+insert. It can also be searched without taking any locks, but
+ * in that case the returned key may have already been removed.
+ */
+ struct key *mk_users;
+
+ /*
+ * Length of ->mk_decrypted_inodes, plus one if mk_secret is present.
+ * Once this goes to 0, the master key is removed from ->s_master_keys.
+ * The 'struct fscrypt_master_key' will continue to live as long as the
+ * 'struct key' whose payload it is, but we won't let this reference
+ * count rise again.
+ */
+ refcount_t mk_refcount;
+
+ /*
+ * List of inodes that were unlocked using this key. This allows the
+ * inodes to be evicted efficiently if the key is removed.
+ */
+ struct list_head mk_decrypted_inodes;
+ spinlock_t mk_decrypted_inodes_lock;
+
+ /*
+ * Per-mode encryption keys for the various types of encryption policies
+ * that use them. Allocated and derived on-demand.
+ */
+ struct fscrypt_prepared_key mk_direct_keys[__FSCRYPT_MODE_MAX + 1];
+ struct fscrypt_prepared_key mk_iv_ino_lblk_64_keys[__FSCRYPT_MODE_MAX + 1];
+ struct fscrypt_prepared_key mk_iv_ino_lblk_32_keys[__FSCRYPT_MODE_MAX + 1];
+
+ /* Hash key for inode numbers. Initialized only when needed. */
+ siphash_key_t mk_ino_hash_key;
+ bool mk_ino_hash_key_initialized;
+
+} __randomize_layout;
+
+static inline bool
+is_master_key_secret_present(const struct fscrypt_master_key_secret *secret)
+{
+ /*
+ * The READ_ONCE() is only necessary for fscrypt_drop_inode() and
+ * fscrypt_key_describe(). These run in atomic context, so they can't
+ * take ->mk_secret_sem and thus 'secret' can change concurrently which
+ * would be a data race. But they only need to know whether the secret
+ * *was* present at the time of check, so READ_ONCE() suffices.
+ */
+ return READ_ONCE(secret->size) != 0;
+}
+
+static inline const char *master_key_spec_type(
+ const struct fscrypt_key_specifier *spec)
+{
+ switch (spec->type) {
+ case FSCRYPT_KEY_SPEC_TYPE_DESCRIPTOR:
+ return "descriptor";
+ case FSCRYPT_KEY_SPEC_TYPE_IDENTIFIER:
+ return "identifier";
+ }
+ return "[unknown]";
+}
+
+static inline int master_key_spec_len(const struct fscrypt_key_specifier *spec)
+{
+ switch (spec->type) {
+ case FSCRYPT_KEY_SPEC_TYPE_DESCRIPTOR:
+ return FSCRYPT_KEY_DESCRIPTOR_SIZE;
+ case FSCRYPT_KEY_SPEC_TYPE_IDENTIFIER:
+ return FSCRYPT_KEY_IDENTIFIER_SIZE;
+ }
+ return 0;
+}
+
+struct key *
+fscrypt_find_master_key(struct super_block *sb,
+ const struct fscrypt_key_specifier *mk_spec);
+
+int fscrypt_add_test_dummy_key(struct super_block *sb,
+ struct fscrypt_key_specifier *key_spec);
+
+int fscrypt_verify_key_added(struct super_block *sb,
+ const u8 identifier[FSCRYPT_KEY_IDENTIFIER_SIZE]);
+
+int __init fscrypt_init_keyring(void);
+
+/* keysetup.c */
+
+struct fscrypt_mode {
+ const char *friendly_name;
+ const char *cipher_str;
+ int keysize;
+ int ivsize;
+ int logged_impl_name;
+ enum blk_crypto_mode_num blk_crypto_mode;
+};
+
+extern struct fscrypt_mode fscrypt_modes[];
+
+int fscrypt_prepare_key(struct fscrypt_prepared_key *prep_key,
+ const u8 *raw_key, unsigned int raw_key_size,
+ bool is_hw_wrapped, const struct fscrypt_info *ci);
+
+void fscrypt_destroy_prepared_key(struct fscrypt_prepared_key *prep_key);
+
+int fscrypt_set_per_file_enc_key(struct fscrypt_info *ci, const u8 *raw_key);
+
+int fscrypt_derive_dirhash_key(struct fscrypt_info *ci,
+ const struct fscrypt_master_key *mk);
+
+/* keysetup_v1.c */
+
+void fscrypt_put_direct_key(struct fscrypt_direct_key *dk);
+
+int fscrypt_setup_v1_file_key(struct fscrypt_info *ci,
+ const u8 *raw_master_key);
+
+int fscrypt_setup_v1_file_key_via_subscribed_keyrings(struct fscrypt_info *ci);
+
+/* policy.c */
+
+bool fscrypt_policies_equal(const union fscrypt_policy *policy1,
+ const union fscrypt_policy *policy2);
+bool fscrypt_supported_policy(const union fscrypt_policy *policy_u,
+ const struct inode *inode);
+int fscrypt_policy_from_context(union fscrypt_policy *policy_u,
+ const union fscrypt_context *ctx_u,
+ int ctx_size);
#endif /* _FSCRYPT_PRIVATE_H */
diff --git a/fs/crypto/hkdf.c b/fs/crypto/hkdf.c
new file mode 100644
index 0000000..fd7f676
--- /dev/null
+++ b/fs/crypto/hkdf.c
@@ -0,0 +1,183 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Implementation of HKDF ("HMAC-based Extract-and-Expand Key Derivation
+ * Function"), aka RFC 5869. See also the original paper (Krawczyk 2010):
+ * "Cryptographic Extraction and Key Derivation: The HKDF Scheme".
+ *
+ * This is used to derive keys from the fscrypt master keys.
+ *
+ * Copyright 2019 Google LLC
+ */
+
+#include <crypto/hash.h>
+#include <crypto/sha.h>
+
+#include "fscrypt_private.h"
+
+/*
+ * HKDF supports any unkeyed cryptographic hash algorithm, but fscrypt uses
+ * SHA-512 because it is reasonably secure and efficient; and since it produces
+ * a 64-byte digest, deriving an AES-256-XTS key preserves all 64 bytes of
+ * entropy from the master key and requires only one iteration of HKDF-Expand.
+ */
+#define HKDF_HMAC_ALG "hmac(sha512)"
+#define HKDF_HASHLEN SHA512_DIGEST_SIZE
+
+/*
+ * HKDF consists of two steps:
+ *
+ * 1. HKDF-Extract: extract a pseudorandom key of length HKDF_HASHLEN bytes from
+ * the input keying material and optional salt.
+ * 2. HKDF-Expand: expand the pseudorandom key into output keying material of
+ * any length, parameterized by an application-specific info string.
+ *
+ * HKDF-Extract can be skipped if the input is already a pseudorandom key of
+ * length HKDF_HASHLEN bytes. However, cipher modes other than AES-256-XTS take
+ * shorter keys, and we don't want to force users of those modes to provide
+ * unnecessarily long master keys. Thus fscrypt still does HKDF-Extract. No
+ * salt is used, since fscrypt master keys should already be pseudorandom and
+ * there's no way to persist a random salt per master key from kernel mode.
+ */
+
+/* HKDF-Extract (RFC 5869 section 2.2), unsalted */
+static int hkdf_extract(struct crypto_shash *hmac_tfm, const u8 *ikm,
+ unsigned int ikmlen, u8 prk[HKDF_HASHLEN])
+{
+ static const u8 default_salt[HKDF_HASHLEN];
+ SHASH_DESC_ON_STACK(desc, hmac_tfm);
+ int err;
+
+ err = crypto_shash_setkey(hmac_tfm, default_salt, HKDF_HASHLEN);
+ if (err)
+ return err;
+
+ desc->tfm = hmac_tfm;
+ desc->flags = 0;
+ err = crypto_shash_digest(desc, ikm, ikmlen, prk);
+ shash_desc_zero(desc);
+ return err;
+}
+
+/*
+ * Compute HKDF-Extract using the given master key as the input keying material,
+ * and prepare an HMAC transform object keyed by the resulting pseudorandom key.
+ *
+ * Afterwards, the keyed HMAC transform object can be used for HKDF-Expand many
+ * times without having to recompute HKDF-Extract each time.
+ */
+int fscrypt_init_hkdf(struct fscrypt_hkdf *hkdf, const u8 *master_key,
+ unsigned int master_key_size)
+{
+ struct crypto_shash *hmac_tfm;
+ u8 prk[HKDF_HASHLEN];
+ int err;
+
+ hmac_tfm = crypto_alloc_shash(HKDF_HMAC_ALG, 0, 0);
+ if (IS_ERR(hmac_tfm)) {
+ fscrypt_err(NULL, "Error allocating " HKDF_HMAC_ALG ": %ld",
+ PTR_ERR(hmac_tfm));
+ return PTR_ERR(hmac_tfm);
+ }
+
+ if (WARN_ON(crypto_shash_digestsize(hmac_tfm) != sizeof(prk))) {
+ err = -EINVAL;
+ goto err_free_tfm;
+ }
+
+ err = hkdf_extract(hmac_tfm, master_key, master_key_size, prk);
+ if (err)
+ goto err_free_tfm;
+
+ err = crypto_shash_setkey(hmac_tfm, prk, sizeof(prk));
+ if (err)
+ goto err_free_tfm;
+
+ hkdf->hmac_tfm = hmac_tfm;
+ goto out;
+
+err_free_tfm:
+ crypto_free_shash(hmac_tfm);
+out:
+ memzero_explicit(prk, sizeof(prk));
+ return err;
+}
+
+/*
+ * HKDF-Expand (RFC 5869 section 2.3). This expands the pseudorandom key, which
+ * was already keyed into 'hkdf->hmac_tfm' by fscrypt_init_hkdf(), into 'okmlen'
+ * bytes of output keying material parameterized by the application-specific
+ * 'info' of length 'infolen' bytes, prefixed by "fscrypt\0" and the 'context'
+ * byte. This is thread-safe and may be called by multiple threads in parallel.
+ *
+ * ('context' isn't part of the HKDF specification; it's just a prefix fscrypt
+ * adds to its application-specific info strings to guarantee that it doesn't
+ * accidentally repeat an info string when using HKDF for different purposes.)
+ */
+int fscrypt_hkdf_expand(const struct fscrypt_hkdf *hkdf, u8 context,
+ const u8 *info, unsigned int infolen,
+ u8 *okm, unsigned int okmlen)
+{
+ SHASH_DESC_ON_STACK(desc, hkdf->hmac_tfm);
+ u8 prefix[9];
+ unsigned int i;
+ int err;
+ const u8 *prev = NULL;
+ u8 counter = 1;
+ u8 tmp[HKDF_HASHLEN];
+
+ if (WARN_ON(okmlen > 255 * HKDF_HASHLEN))
+ return -EINVAL;
+
+ desc->tfm = hkdf->hmac_tfm;
+ desc->flags = 0;
+
+ memcpy(prefix, "fscrypt\0", 8);
+ prefix[8] = context;
+
+ for (i = 0; i < okmlen; i += HKDF_HASHLEN) {
+
+ err = crypto_shash_init(desc);
+ if (err)
+ goto out;
+
+ if (prev) {
+ err = crypto_shash_update(desc, prev, HKDF_HASHLEN);
+ if (err)
+ goto out;
+ }
+
+ err = crypto_shash_update(desc, prefix, sizeof(prefix));
+ if (err)
+ goto out;
+
+ err = crypto_shash_update(desc, info, infolen);
+ if (err)
+ goto out;
+
+ BUILD_BUG_ON(sizeof(counter) != 1);
+ if (okmlen - i < HKDF_HASHLEN) {
+ err = crypto_shash_finup(desc, &counter, 1, tmp);
+ if (err)
+ goto out;
+ memcpy(&okm[i], tmp, okmlen - i);
+ memzero_explicit(tmp, sizeof(tmp));
+ } else {
+ err = crypto_shash_finup(desc, &counter, 1, &okm[i]);
+ if (err)
+ goto out;
+ }
+ counter++;
+ prev = &okm[i];
+ }
+ err = 0;
+out:
+ if (unlikely(err))
+ memzero_explicit(okm, okmlen); /* so caller doesn't need to */
+ shash_desc_zero(desc);
+ return err;
+}
+
+void fscrypt_destroy_hkdf(struct fscrypt_hkdf *hkdf)
+{
+ crypto_free_shash(hkdf->hmac_tfm);
+}
diff --git a/fs/crypto/hooks.c b/fs/crypto/hooks.c
index ae7a413..7173233 100644
--- a/fs/crypto/hooks.c
+++ b/fs/crypto/hooks.c
@@ -4,11 +4,12 @@
* Encryption hooks for higher-level filesystem operations.
*/
-#include <linux/ratelimit.h>
+#include <linux/key.h>
+
#include "fscrypt_private.h"
/**
- * fscrypt_file_open - prepare to open a possibly-encrypted regular file
+ * fscrypt_file_open() - prepare to open a possibly-encrypted regular file
* @inode: the inode being opened
* @filp: the struct file being set up
*
@@ -39,9 +40,9 @@ int fscrypt_file_open(struct inode *inode, struct file *filp)
dir = dget_parent(file_dentry(filp));
if (IS_ENCRYPTED(d_inode(dir)) &&
!fscrypt_has_permitted_context(d_inode(dir), inode)) {
- fscrypt_warn(inode->i_sb,
- "inconsistent encryption contexts: %lu/%lu",
- d_inode(dir)->i_ino, inode->i_ino);
+ fscrypt_warn(inode,
+ "Inconsistent encryption context (parent directory: %lu)",
+ d_inode(dir)->i_ino);
err = -EPERM;
}
dput(dir);
@@ -116,12 +117,53 @@ int __fscrypt_prepare_lookup(struct inode *dir, struct dentry *dentry,
spin_lock(&dentry->d_lock);
dentry->d_flags |= DCACHE_ENCRYPTED_NAME;
spin_unlock(&dentry->d_lock);
- d_set_d_op(dentry, &fscrypt_d_ops);
}
return err;
}
EXPORT_SYMBOL_GPL(__fscrypt_prepare_lookup);
+/**
+ * fscrypt_prepare_setflags() - prepare to change flags with FS_IOC_SETFLAGS
+ * @inode: the inode on which flags are being changed
+ * @oldflags: the old flags
+ * @flags: the new flags
+ *
+ * The caller should be holding i_rwsem for write.
+ *
+ * Return: 0 on success; -errno if the flags change isn't allowed or if
+ * another error occurs.
+ */
+int fscrypt_prepare_setflags(struct inode *inode,
+ unsigned int oldflags, unsigned int flags)
+{
+ struct fscrypt_info *ci;
+ struct fscrypt_master_key *mk;
+ int err;
+
+ /*
+ * When the CASEFOLD flag is set on an encrypted directory, we must
+ * derive the secret key needed for the dirhash. This is only possible
+ * if the directory uses a v2 encryption policy.
+ */
+ if (IS_ENCRYPTED(inode) && (flags & ~oldflags & FS_CASEFOLD_FL)) {
+ err = fscrypt_require_key(inode);
+ if (err)
+ return err;
+ ci = inode->i_crypt_info;
+ if (ci->ci_policy.version != FSCRYPT_POLICY_V2)
+ return -EINVAL;
+ mk = ci->ci_master_key->payload.data[0];
+ down_read(&mk->mk_secret_sem);
+ if (is_master_key_secret_present(&mk->mk_secret))
+ err = fscrypt_derive_dirhash_key(ci, mk);
+ else
+ err = -ENOKEY;
+ up_read(&mk->mk_secret_sem);
+ return err;
+ }
+ return 0;
+}
+
int __fscrypt_prepare_symlink(struct inode *dir, unsigned int len,
unsigned int max_len,
struct fscrypt_str *disk_link)
@@ -188,12 +230,11 @@ int __fscrypt_encrypt_symlink(struct inode *inode, const char *target,
ciphertext_len = disk_link->len - sizeof(*sd);
sd->len = cpu_to_le16(ciphertext_len);
- err = fname_encrypt(inode, &iname, sd->encrypted_path, ciphertext_len);
- if (err) {
- if (!disk_link->name)
- kfree(sd);
- return err;
- }
+ err = fscrypt_fname_encrypt(inode, &iname, sd->encrypted_path,
+ ciphertext_len);
+ if (err)
+ goto err_free_sd;
+
/*
* Null-terminating the ciphertext doesn't make sense, but we still
* count the null terminator in the length, so we might as well
@@ -201,18 +242,29 @@ int __fscrypt_encrypt_symlink(struct inode *inode, const char *target,
*/
sd->encrypted_path[ciphertext_len] = '\0';
+ /* Cache the plaintext symlink target for later use by get_link() */
+ err = -ENOMEM;
+ inode->i_link = kmemdup(target, len + 1, GFP_NOFS);
+ if (!inode->i_link)
+ goto err_free_sd;
+
if (!disk_link->name)
disk_link->name = (unsigned char *)sd;
return 0;
+
+err_free_sd:
+ if (!disk_link->name)
+ kfree(sd);
+ return err;
}
EXPORT_SYMBOL_GPL(__fscrypt_encrypt_symlink);
/**
- * fscrypt_get_symlink - get the target of an encrypted symlink
+ * fscrypt_get_symlink() - get the target of an encrypted symlink
* @inode: the symlink inode
* @caddr: the on-disk contents of the symlink
* @max_size: size of @caddr buffer
- * @done: if successful, will be set up to free the returned target
+ * @done: if successful, will be set up to free the returned target if needed
*
* If the symlink's encryption key is available, we decrypt its target.
* Otherwise, we encode its target for presentation.
@@ -227,12 +279,18 @@ const char *fscrypt_get_symlink(struct inode *inode, const void *caddr,
{
const struct fscrypt_symlink_data *sd;
struct fscrypt_str cstr, pstr;
+ bool has_key;
int err;
/* This is for encrypted symlinks only */
if (WARN_ON(!IS_ENCRYPTED(inode)))
return ERR_PTR(-EINVAL);
+ /* If the decrypted target is already cached, just return it. */
+ pstr.name = READ_ONCE(inode->i_link);
+ if (pstr.name)
+ return pstr.name;
+
/*
* Try to set up the symlink's encryption key, but we can continue
* regardless of whether the key is available or not.
@@ -240,6 +298,7 @@ const char *fscrypt_get_symlink(struct inode *inode, const void *caddr,
err = fscrypt_get_encryption_info(inode);
if (err)
return ERR_PTR(err);
+ has_key = fscrypt_has_encryption_key(inode);
/*
* For historical reasons, encrypted symlink targets are prefixed with
@@ -271,7 +330,17 @@ const char *fscrypt_get_symlink(struct inode *inode, const void *caddr,
goto err_kfree;
pstr.name[pstr.len] = '\0';
- set_delayed_call(done, kfree_link, pstr.name);
+
+ /*
+ * Cache decrypted symlink targets in i_link for later use. Don't cache
+ * symlink targets encoded without the key, since those become outdated
+ * once the key is added. This pairs with the READ_ONCE() above and in
+ * the VFS path lookup code.
+ */
+ if (!has_key ||
+ cmpxchg_release(&inode->i_link, NULL, pstr.name) != NULL)
+ set_delayed_call(done, kfree_link, pstr.name);
+
return pstr.name;
err_kfree:
diff --git a/fs/crypto/inline_crypt.c b/fs/crypto/inline_crypt.c
new file mode 100644
index 0000000..3b3a684
--- /dev/null
+++ b/fs/crypto/inline_crypt.c
@@ -0,0 +1,519 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Inline encryption support for fscrypt
+ *
+ * Copyright 2019 Google LLC
+ */
+
+/*
+ * With "inline encryption", the block layer handles the decryption/encryption
+ * as part of the bio, instead of the filesystem doing the crypto itself via
+ * crypto API. See Documentation/block/inline-encryption.rst. fscrypt still
+ * provides the key and IV to use.
+ */
+
+#include <linux/blk-crypto.h>
+#include <linux/blkdev.h>
+#include <linux/buffer_head.h>
+#include <linux/keyslot-manager.h>
+#include <linux/uio.h>
+
+#include "fscrypt_private.h"
+
+struct fscrypt_blk_crypto_key {
+ struct blk_crypto_key base;
+ int num_devs;
+ struct request_queue *devs[];
+};
+
+static int fscrypt_get_num_devices(struct super_block *sb)
+{
+ if (sb->s_cop->get_num_devices)
+ return sb->s_cop->get_num_devices(sb);
+ return 1;
+}
+
+static void fscrypt_get_devices(struct super_block *sb, int num_devs,
+ struct request_queue **devs)
+{
+ if (num_devs == 1)
+ devs[0] = bdev_get_queue(sb->s_bdev);
+ else
+ sb->s_cop->get_devices(sb, devs);
+}
+
+static unsigned int fscrypt_get_dun_bytes(const struct fscrypt_info *ci)
+{
+ struct super_block *sb = ci->ci_inode->i_sb;
+ unsigned int flags = fscrypt_policy_flags(&ci->ci_policy);
+ int ino_bits = 64, lblk_bits = 64;
+
+ if (flags & FSCRYPT_POLICY_FLAG_DIRECT_KEY)
+ return offsetofend(union fscrypt_iv, nonce);
+
+ if (flags & FSCRYPT_POLICY_FLAG_IV_INO_LBLK_64)
+ return sizeof(__le64);
+
+ if (flags & FSCRYPT_POLICY_FLAG_IV_INO_LBLK_32)
+ return sizeof(__le32);
+
+ /* Default case: IVs are just the file logical block number */
+ if (sb->s_cop->get_ino_and_lblk_bits)
+ sb->s_cop->get_ino_and_lblk_bits(sb, &ino_bits, &lblk_bits);
+ return DIV_ROUND_UP(lblk_bits, 8);
+}
+
+/* Enable inline encryption for this file if supported. */
+int fscrypt_select_encryption_impl(struct fscrypt_info *ci,
+ bool is_hw_wrapped_key)
+{
+ const struct inode *inode = ci->ci_inode;
+ struct super_block *sb = inode->i_sb;
+ enum blk_crypto_mode_num crypto_mode = ci->ci_mode->blk_crypto_mode;
+ unsigned int dun_bytes;
+ struct request_queue **devs;
+ int num_devs;
+ int i;
+
+ /* The file must need contents encryption, not filenames encryption */
+ if (!S_ISREG(inode->i_mode))
+ return 0;
+
+ /* blk-crypto must implement the needed encryption algorithm */
+ if (crypto_mode == BLK_ENCRYPTION_MODE_INVALID)
+ return 0;
+
+ /* The filesystem must be mounted with -o inlinecrypt */
+ if (!sb->s_cop->inline_crypt_enabled ||
+ !sb->s_cop->inline_crypt_enabled(sb))
+ return 0;
+
+ /*
+ * When a page contains multiple logically contiguous filesystem blocks,
+ * some filesystem code only calls fscrypt_mergeable_bio() for the first
+ * block in the page. This is fine for most of fscrypt's IV generation
+ * strategies, where contiguous blocks imply contiguous IVs. But it
+ * doesn't work with IV_INO_LBLK_32. For now, simply exclude
+ * IV_INO_LBLK_32 with blocksize != PAGE_SIZE from inline encryption.
+ */
+ if ((fscrypt_policy_flags(&ci->ci_policy) &
+ FSCRYPT_POLICY_FLAG_IV_INO_LBLK_32) &&
+ sb->s_blocksize != PAGE_SIZE)
+ return 0;
+
+ /*
+ * The needed encryption settings must be supported either by
+ * blk-crypto-fallback, or by hardware on all the filesystem's devices.
+ */
+
+ if (IS_ENABLED(CONFIG_BLK_INLINE_ENCRYPTION_FALLBACK) &&
+ !is_hw_wrapped_key) {
+ ci->ci_inlinecrypt = true;
+ return 0;
+ }
+
+ num_devs = fscrypt_get_num_devices(sb);
+ devs = kmalloc_array(num_devs, sizeof(*devs), GFP_NOFS);
+ if (!devs)
+ return -ENOMEM;
+
+ fscrypt_get_devices(sb, num_devs, devs);
+
+ dun_bytes = fscrypt_get_dun_bytes(ci);
+
+ for (i = 0; i < num_devs; i++) {
+ if (!keyslot_manager_crypto_mode_supported(devs[i]->ksm,
+ crypto_mode,
+ dun_bytes,
+ sb->s_blocksize,
+ is_hw_wrapped_key))
+ goto out_free_devs;
+ }
+
+ ci->ci_inlinecrypt = true;
+out_free_devs:
+ kfree(devs);
+ return 0;
+}
+
+int fscrypt_prepare_inline_crypt_key(struct fscrypt_prepared_key *prep_key,
+ const u8 *raw_key,
+ unsigned int raw_key_size,
+ bool is_hw_wrapped,
+ const struct fscrypt_info *ci)
+{
+ const struct inode *inode = ci->ci_inode;
+ struct super_block *sb = inode->i_sb;
+ enum blk_crypto_mode_num crypto_mode = ci->ci_mode->blk_crypto_mode;
+ unsigned int dun_bytes;
+ int num_devs;
+ int queue_refs = 0;
+ struct fscrypt_blk_crypto_key *blk_key;
+ int err;
+ int i;
+
+ num_devs = fscrypt_get_num_devices(sb);
+ if (WARN_ON(num_devs < 1))
+ return -EINVAL;
+
+ blk_key = kzalloc(struct_size(blk_key, devs, num_devs), GFP_NOFS);
+ if (!blk_key)
+ return -ENOMEM;
+
+ blk_key->num_devs = num_devs;
+ fscrypt_get_devices(sb, num_devs, blk_key->devs);
+
+ dun_bytes = fscrypt_get_dun_bytes(ci);
+
+ BUILD_BUG_ON(FSCRYPT_MAX_HW_WRAPPED_KEY_SIZE >
+ BLK_CRYPTO_MAX_WRAPPED_KEY_SIZE);
+
+ err = blk_crypto_init_key(&blk_key->base, raw_key, raw_key_size,
+ is_hw_wrapped, crypto_mode, dun_bytes,
+ sb->s_blocksize);
+ if (err) {
+ fscrypt_err(inode, "error %d initializing blk-crypto key", err);
+ goto fail;
+ }
+
+ /*
+ * We have to start using blk-crypto on all the filesystem's devices.
+ * We also have to save all the request_queue's for later so that the
+ * key can be evicted from them. This is needed because some keys
+ * aren't destroyed until after the filesystem was already unmounted
+ * (namely, the per-mode keys in struct fscrypt_master_key).
+ */
+ for (i = 0; i < num_devs; i++) {
+ if (!blk_get_queue(blk_key->devs[i])) {
+ fscrypt_err(inode, "couldn't get request_queue");
+ err = -EAGAIN;
+ goto fail;
+ }
+ queue_refs++;
+
+ err = blk_crypto_start_using_mode(crypto_mode, dun_bytes,
+ sb->s_blocksize,
+ is_hw_wrapped,
+ blk_key->devs[i]);
+ if (err) {
+ fscrypt_err(inode,
+ "error %d starting to use blk-crypto", err);
+ goto fail;
+ }
+ }
+ /*
+ * Pairs with the smp_load_acquire() in fscrypt_is_key_prepared().
+ * I.e., here we publish ->blk_key with a RELEASE barrier so that
+ * concurrent tasks can ACQUIRE it. Note that this concurrency is only
+ * possible for per-mode keys, not for per-file keys.
+ */
+ smp_store_release(&prep_key->blk_key, blk_key);
+ return 0;
+
+fail:
+ for (i = 0; i < queue_refs; i++)
+ blk_put_queue(blk_key->devs[i]);
+ kzfree(blk_key);
+ return err;
+}
+
+void fscrypt_destroy_inline_crypt_key(struct fscrypt_prepared_key *prep_key)
+{
+ struct fscrypt_blk_crypto_key *blk_key = prep_key->blk_key;
+ int i;
+
+ if (blk_key) {
+ for (i = 0; i < blk_key->num_devs; i++) {
+ blk_crypto_evict_key(blk_key->devs[i], &blk_key->base);
+ blk_put_queue(blk_key->devs[i]);
+ }
+ kzfree(blk_key);
+ }
+}
+
+int fscrypt_derive_raw_secret(struct super_block *sb,
+ const u8 *wrapped_key,
+ unsigned int wrapped_key_size,
+ u8 *raw_secret, unsigned int raw_secret_size)
+{
+ struct request_queue *q;
+
+ q = sb->s_bdev->bd_queue;
+ if (!q->ksm)
+ return -EOPNOTSUPP;
+
+ return keyslot_manager_derive_raw_secret(q->ksm,
+ wrapped_key, wrapped_key_size,
+ raw_secret, raw_secret_size);
+}
+
+/**
+ * fscrypt_inode_uses_inline_crypto - test whether an inode uses inline
+ * encryption
+ * @inode: an inode
+ *
+ * Return: true if the inode requires file contents encryption and if the
+ * encryption should be done in the block layer via blk-crypto rather
+ * than in the filesystem layer.
+ */
+bool fscrypt_inode_uses_inline_crypto(const struct inode *inode)
+{
+ return IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode) &&
+ inode->i_crypt_info->ci_inlinecrypt;
+}
+EXPORT_SYMBOL_GPL(fscrypt_inode_uses_inline_crypto);
+
+/**
+ * fscrypt_inode_uses_fs_layer_crypto - test whether an inode uses fs-layer
+ * encryption
+ * @inode: an inode
+ *
+ * Return: true if the inode requires file contents encryption and if the
+ * encryption should be done in the filesystem layer rather than in the
+ * block layer via blk-crypto.
+ */
+bool fscrypt_inode_uses_fs_layer_crypto(const struct inode *inode)
+{
+ return IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode) &&
+ !inode->i_crypt_info->ci_inlinecrypt;
+}
+EXPORT_SYMBOL_GPL(fscrypt_inode_uses_fs_layer_crypto);
+
+static void fscrypt_generate_dun(const struct fscrypt_info *ci, u64 lblk_num,
+ u64 dun[BLK_CRYPTO_DUN_ARRAY_SIZE])
+{
+ union fscrypt_iv iv;
+ int i;
+
+ fscrypt_generate_iv(&iv, lblk_num, ci);
+
+ BUILD_BUG_ON(FSCRYPT_MAX_IV_SIZE > BLK_CRYPTO_MAX_IV_SIZE);
+ memset(dun, 0, BLK_CRYPTO_MAX_IV_SIZE);
+ for (i = 0; i < ci->ci_mode->ivsize/sizeof(dun[0]); i++)
+ dun[i] = le64_to_cpu(iv.dun[i]);
+}
+
+/**
+ * fscrypt_set_bio_crypt_ctx - prepare a file contents bio for inline encryption
+ * @bio: a bio which will eventually be submitted to the file
+ * @inode: the file's inode
+ * @first_lblk: the first file logical block number in the I/O
+ * @gfp_mask: memory allocation flags - these must be a waiting mask so that
+ * bio_crypt_set_ctx can't fail.
+ *
+ * If the contents of the file should be encrypted (or decrypted) with inline
+ * encryption, then assign the appropriate encryption context to the bio.
+ *
+ * Normally the bio should be newly allocated (i.e. no pages added yet), as
+ * otherwise fscrypt_mergeable_bio() won't work as intended.
+ *
+ * The encryption context will be freed automatically when the bio is freed.
+ *
+ * This function also handles setting bi_skip_dm_default_key when needed.
+ */
+void fscrypt_set_bio_crypt_ctx(struct bio *bio, const struct inode *inode,
+ u64 first_lblk, gfp_t gfp_mask)
+{
+ const struct fscrypt_info *ci = inode->i_crypt_info;
+ u64 dun[BLK_CRYPTO_DUN_ARRAY_SIZE];
+
+ if (fscrypt_inode_should_skip_dm_default_key(inode))
+ bio_set_skip_dm_default_key(bio);
+
+ if (!fscrypt_inode_uses_inline_crypto(inode))
+ return;
+
+ fscrypt_generate_dun(ci, first_lblk, dun);
+ bio_crypt_set_ctx(bio, &ci->ci_key.blk_key->base, dun, gfp_mask);
+}
+EXPORT_SYMBOL_GPL(fscrypt_set_bio_crypt_ctx);
+
+/* Extract the inode and logical block number from a buffer_head. */
+static bool bh_get_inode_and_lblk_num(const struct buffer_head *bh,
+ const struct inode **inode_ret,
+ u64 *lblk_num_ret)
+{
+ struct page *page = bh->b_page;
+ const struct address_space *mapping;
+ const struct inode *inode;
+
+ /*
+ * The ext4 journal (jbd2) can submit a buffer_head it directly created
+ * for a non-pagecache page. fscrypt doesn't care about these.
+ */
+ mapping = page_mapping(page);
+ if (!mapping)
+ return false;
+ inode = mapping->host;
+
+ *inode_ret = inode;
+ *lblk_num_ret = ((u64)page->index << (PAGE_SHIFT - inode->i_blkbits)) +
+ (bh_offset(bh) >> inode->i_blkbits);
+ return true;
+}
+
+/**
+ * fscrypt_set_bio_crypt_ctx_bh - prepare a file contents bio for inline
+ * encryption
+ * @bio: a bio which will eventually be submitted to the file
+ * @first_bh: the first buffer_head for which I/O will be submitted
+ * @gfp_mask: memory allocation flags
+ *
+ * Same as fscrypt_set_bio_crypt_ctx(), except this takes a buffer_head instead
+ * of an inode and block number directly.
+ */
+void fscrypt_set_bio_crypt_ctx_bh(struct bio *bio,
+ const struct buffer_head *first_bh,
+ gfp_t gfp_mask)
+{
+ const struct inode *inode;
+ u64 first_lblk;
+
+ if (bh_get_inode_and_lblk_num(first_bh, &inode, &first_lblk))
+ fscrypt_set_bio_crypt_ctx(bio, inode, first_lblk, gfp_mask);
+}
+EXPORT_SYMBOL_GPL(fscrypt_set_bio_crypt_ctx_bh);
+
+/**
+ * fscrypt_mergeable_bio - test whether data can be added to a bio
+ * @bio: the bio being built up
+ * @inode: the inode for the next part of the I/O
+ * @next_lblk: the next file logical block number in the I/O
+ *
+ * When building a bio which may contain data which should undergo inline
+ * encryption (or decryption) via fscrypt, filesystems should call this function
+ * to ensure that the resulting bio contains only logically contiguous data.
+ * This will return false if the next part of the I/O cannot be merged with the
+ * bio because either the encryption key would be different or the encryption
+ * data unit numbers would be discontiguous.
+ *
+ * fscrypt_set_bio_crypt_ctx() must have already been called on the bio.
+ *
+ * This function also returns false if the next part of the I/O would need to
+ * have a different value for the bi_skip_dm_default_key flag.
+ *
+ * Return: true iff the I/O is mergeable
+ */
+bool fscrypt_mergeable_bio(struct bio *bio, const struct inode *inode,
+ u64 next_lblk)
+{
+ const struct bio_crypt_ctx *bc = bio->bi_crypt_context;
+ u64 next_dun[BLK_CRYPTO_DUN_ARRAY_SIZE];
+
+ if (!!bc != fscrypt_inode_uses_inline_crypto(inode))
+ return false;
+ if (bio_should_skip_dm_default_key(bio) !=
+ fscrypt_inode_should_skip_dm_default_key(inode))
+ return false;
+ if (!bc)
+ return true;
+
+ /*
+ * Comparing the key pointers is good enough, as all I/O for each key
+ * uses the same pointer. I.e., there's currently no need to support
+ * merging requests where the keys are the same but the pointers differ.
+ */
+ if (bc->bc_key != &inode->i_crypt_info->ci_key.blk_key->base)
+ return false;
+
+ fscrypt_generate_dun(inode->i_crypt_info, next_lblk, next_dun);
+ return bio_crypt_dun_is_contiguous(bc, bio->bi_iter.bi_size, next_dun);
+}
+EXPORT_SYMBOL_GPL(fscrypt_mergeable_bio);
+
+/**
+ * fscrypt_mergeable_bio_bh - test whether data can be added to a bio
+ * @bio: the bio being built up
+ * @next_bh: the next buffer_head for which I/O will be submitted
+ *
+ * Same as fscrypt_mergeable_bio(), except this takes a buffer_head instead of
+ * an inode and block number directly.
+ *
+ * Return: true iff the I/O is mergeable
+ */
+bool fscrypt_mergeable_bio_bh(struct bio *bio,
+ const struct buffer_head *next_bh)
+{
+ const struct inode *inode;
+ u64 next_lblk;
+
+ if (!bh_get_inode_and_lblk_num(next_bh, &inode, &next_lblk))
+ return !bio->bi_crypt_context &&
+ !bio_should_skip_dm_default_key(bio);
+
+ return fscrypt_mergeable_bio(bio, inode, next_lblk);
+}
+EXPORT_SYMBOL_GPL(fscrypt_mergeable_bio_bh);
+
+/**
+ * fscrypt_dio_supported() - check whether a direct I/O request is unsupported
+ * due to encryption constraints
+ * @iocb: the file and position the I/O is targeting
+ * @iter: the I/O data segment(s)
+ *
+ * Return: true if direct I/O is supported
+ */
+bool fscrypt_dio_supported(struct kiocb *iocb, struct iov_iter *iter)
+{
+ const struct inode *inode = file_inode(iocb->ki_filp);
+ const unsigned int blocksize = i_blocksize(inode);
+
+ /* If the file is unencrypted, no veto from us. */
+ if (!fscrypt_needs_contents_encryption(inode))
+ return true;
+
+ /* We only support direct I/O with inline crypto, not fs-layer crypto */
+ if (!fscrypt_inode_uses_inline_crypto(inode))
+ return false;
+
+ /*
+ * Since the granularity of encryption is filesystem blocks, the I/O
+ * must be block aligned -- not just disk sector aligned.
+ */
+ if (!IS_ALIGNED(iocb->ki_pos | iov_iter_alignment(iter), blocksize))
+ return false;
+
+ return true;
+}
+EXPORT_SYMBOL_GPL(fscrypt_dio_supported);
+
+/**
+ * fscrypt_limit_dio_pages() - limit I/O pages to avoid discontiguous DUNs
+ * @inode: the file on which I/O is being done
+ * @pos: the file position (in bytes) at which the I/O is being done
+ * @nr_pages: the number of pages we want to submit starting at @pos
+ *
+ * For direct I/O: limit the number of pages that will be submitted in the bio
+ * targeting @pos, in order to avoid crossing a data unit number (DUN)
+ * discontinuity. This is only needed for certain IV generation methods.
+ *
+ * Return: the actual number of pages that can be submitted
+ */
+int fscrypt_limit_dio_pages(const struct inode *inode, loff_t pos, int nr_pages)
+{
+ const struct fscrypt_info *ci = inode->i_crypt_info;
+ u32 dun;
+
+ if (!fscrypt_inode_uses_inline_crypto(inode))
+ return nr_pages;
+
+ if (nr_pages <= 1)
+ return nr_pages;
+
+ if (!(fscrypt_policy_flags(&ci->ci_policy) &
+ FSCRYPT_POLICY_FLAG_IV_INO_LBLK_32))
+ return nr_pages;
+
+ /*
+ * fscrypt_select_encryption_impl() ensures that block_size == PAGE_SIZE
+ * when using FSCRYPT_POLICY_FLAG_IV_INO_LBLK_32.
+ */
+ if (WARN_ON_ONCE(i_blocksize(inode) != PAGE_SIZE))
+ return 1;
+
+ /* With IV_INO_LBLK_32, the DUN can wrap around from U32_MAX to 0. */
+
+ dun = ci->ci_hashed_ino + (pos >> inode->i_blkbits);
+
+ return min_t(u64, nr_pages, (u64)U32_MAX + 1 - dun);
+}
diff --git a/fs/crypto/keyinfo.c b/fs/crypto/keyinfo.c
deleted file mode 100644
index 7874c9b..0000000
--- a/fs/crypto/keyinfo.c
+++ /dev/null
@@ -1,399 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * key management facility for FS encryption support.
- *
- * Copyright (C) 2015, Google, Inc.
- *
- * This contains encryption key functions.
- *
- * Written by Michael Halcrow, Ildar Muslukhov, and Uday Savagaonkar, 2015.
- */
-
-#include <keys/user-type.h>
-#include <linux/scatterlist.h>
-#include <linux/ratelimit.h>
-#include <crypto/aes.h>
-#include <crypto/sha.h>
-#include <crypto/skcipher.h>
-#include "fscrypt_private.h"
-
-static struct crypto_shash *essiv_hash_tfm;
-
-/*
- * Key derivation function. This generates the derived key by encrypting the
- * master key with AES-128-ECB using the inode's nonce as the AES key.
- *
- * The master key must be at least as long as the derived key. If the master
- * key is longer, then only the first 'derived_keysize' bytes are used.
- */
-static int derive_key_aes(const u8 *master_key,
- const struct fscrypt_context *ctx,
- u8 *derived_key, unsigned int derived_keysize)
-{
- int res = 0;
- struct skcipher_request *req = NULL;
- DECLARE_CRYPTO_WAIT(wait);
- struct scatterlist src_sg, dst_sg;
- struct crypto_skcipher *tfm = crypto_alloc_skcipher("ecb(aes)", 0, 0);
-
- if (IS_ERR(tfm)) {
- res = PTR_ERR(tfm);
- tfm = NULL;
- goto out;
- }
- crypto_skcipher_set_flags(tfm, CRYPTO_TFM_REQ_WEAK_KEY);
- req = skcipher_request_alloc(tfm, GFP_NOFS);
- if (!req) {
- res = -ENOMEM;
- goto out;
- }
- skcipher_request_set_callback(req,
- CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP,
- crypto_req_done, &wait);
- res = crypto_skcipher_setkey(tfm, ctx->nonce, sizeof(ctx->nonce));
- if (res < 0)
- goto out;
-
- sg_init_one(&src_sg, master_key, derived_keysize);
- sg_init_one(&dst_sg, derived_key, derived_keysize);
- skcipher_request_set_crypt(req, &src_sg, &dst_sg, derived_keysize,
- NULL);
- res = crypto_wait_req(crypto_skcipher_encrypt(req), &wait);
-out:
- skcipher_request_free(req);
- crypto_free_skcipher(tfm);
- return res;
-}
-
-/*
- * Search the current task's subscribed keyrings for a "logon" key with
- * description prefix:descriptor, and if found acquire a read lock on it and
- * return a pointer to its validated payload in *payload_ret.
- */
-static struct key *
-find_and_lock_process_key(const char *prefix,
- const u8 descriptor[FS_KEY_DESCRIPTOR_SIZE],
- unsigned int min_keysize,
- const struct fscrypt_key **payload_ret)
-{
- char *description;
- struct key *key;
- const struct user_key_payload *ukp;
- const struct fscrypt_key *payload;
-
- description = kasprintf(GFP_NOFS, "%s%*phN", prefix,
- FS_KEY_DESCRIPTOR_SIZE, descriptor);
- if (!description)
- return ERR_PTR(-ENOMEM);
-
- key = request_key(&key_type_logon, description, NULL);
- kfree(description);
- if (IS_ERR(key))
- return key;
-
- down_read(&key->sem);
- ukp = user_key_payload_locked(key);
-
- if (!ukp) /* was the key revoked before we acquired its semaphore? */
- goto invalid;
-
- payload = (const struct fscrypt_key *)ukp->data;
-
- if (ukp->datalen != sizeof(struct fscrypt_key) ||
- payload->size < 1 || payload->size > FS_MAX_KEY_SIZE) {
- fscrypt_warn(NULL,
- "key with description '%s' has invalid payload",
- key->description);
- goto invalid;
- }
-
- if (payload->size < min_keysize) {
- fscrypt_warn(NULL,
- "key with description '%s' is too short (got %u bytes, need %u+ bytes)",
- key->description, payload->size, min_keysize);
- goto invalid;
- }
-
- *payload_ret = payload;
- return key;
-
-invalid:
- up_read(&key->sem);
- key_put(key);
- return ERR_PTR(-ENOKEY);
-}
-
-/* Find the master key, then derive the inode's actual encryption key */
-static int find_and_derive_key(const struct inode *inode,
- const struct fscrypt_context *ctx,
- u8 *derived_key, unsigned int derived_keysize)
-{
- struct key *key;
- const struct fscrypt_key *payload;
- int err;
-
- key = find_and_lock_process_key(FS_KEY_DESC_PREFIX,
- ctx->master_key_descriptor,
- derived_keysize, &payload);
- if (key == ERR_PTR(-ENOKEY) && inode->i_sb->s_cop->key_prefix) {
- key = find_and_lock_process_key(inode->i_sb->s_cop->key_prefix,
- ctx->master_key_descriptor,
- derived_keysize, &payload);
- }
- if (IS_ERR(key))
- return PTR_ERR(key);
- err = derive_key_aes(payload->raw, ctx, derived_key, derived_keysize);
- up_read(&key->sem);
- key_put(key);
- return err;
-}
-
-static struct fscrypt_mode {
- const char *friendly_name;
- const char *cipher_str;
- int keysize;
- bool logged_impl_name;
-} available_modes[] = {
- [FS_ENCRYPTION_MODE_AES_256_XTS] = {
- .friendly_name = "AES-256-XTS",
- .cipher_str = "xts(aes)",
- .keysize = 64,
- },
- [FS_ENCRYPTION_MODE_AES_256_CTS] = {
- .friendly_name = "AES-256-CTS-CBC",
- .cipher_str = "cts(cbc(aes))",
- .keysize = 32,
- },
- [FS_ENCRYPTION_MODE_AES_128_CBC] = {
- .friendly_name = "AES-128-CBC",
- .cipher_str = "cbc(aes)",
- .keysize = 16,
- },
- [FS_ENCRYPTION_MODE_AES_128_CTS] = {
- .friendly_name = "AES-128-CTS-CBC",
- .cipher_str = "cts(cbc(aes))",
- .keysize = 16,
- },
-};
-
-static struct fscrypt_mode *
-select_encryption_mode(const struct fscrypt_info *ci, const struct inode *inode)
-{
- if (!fscrypt_valid_enc_modes(ci->ci_data_mode, ci->ci_filename_mode)) {
- fscrypt_warn(inode->i_sb,
- "inode %lu uses unsupported encryption modes (contents mode %d, filenames mode %d)",
- inode->i_ino, ci->ci_data_mode,
- ci->ci_filename_mode);
- return ERR_PTR(-EINVAL);
- }
-
- if (S_ISREG(inode->i_mode))
- return &available_modes[ci->ci_data_mode];
-
- if (S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode))
- return &available_modes[ci->ci_filename_mode];
-
- WARN_ONCE(1, "fscrypt: filesystem tried to load encryption info for inode %lu, which is not encryptable (file type %d)\n",
- inode->i_ino, (inode->i_mode & S_IFMT));
- return ERR_PTR(-EINVAL);
-}
-
-static void put_crypt_info(struct fscrypt_info *ci)
-{
- if (!ci)
- return;
-
- crypto_free_skcipher(ci->ci_ctfm);
- crypto_free_cipher(ci->ci_essiv_tfm);
- kmem_cache_free(fscrypt_info_cachep, ci);
-}
-
-static int derive_essiv_salt(const u8 *key, int keysize, u8 *salt)
-{
- struct crypto_shash *tfm = READ_ONCE(essiv_hash_tfm);
-
- /* init hash transform on demand */
- if (unlikely(!tfm)) {
- struct crypto_shash *prev_tfm;
-
- tfm = crypto_alloc_shash("sha256", 0, 0);
- if (IS_ERR(tfm)) {
- fscrypt_warn(NULL,
- "error allocating SHA-256 transform: %ld",
- PTR_ERR(tfm));
- return PTR_ERR(tfm);
- }
- prev_tfm = cmpxchg(&essiv_hash_tfm, NULL, tfm);
- if (prev_tfm) {
- crypto_free_shash(tfm);
- tfm = prev_tfm;
- }
- }
-
- {
- SHASH_DESC_ON_STACK(desc, tfm);
- desc->tfm = tfm;
- desc->flags = 0;
-
- return crypto_shash_digest(desc, key, keysize, salt);
- }
-}
-
-static int init_essiv_generator(struct fscrypt_info *ci, const u8 *raw_key,
- int keysize)
-{
- int err;
- struct crypto_cipher *essiv_tfm;
- u8 salt[SHA256_DIGEST_SIZE];
-
- essiv_tfm = crypto_alloc_cipher("aes", 0, 0);
- if (IS_ERR(essiv_tfm))
- return PTR_ERR(essiv_tfm);
-
- ci->ci_essiv_tfm = essiv_tfm;
-
- err = derive_essiv_salt(raw_key, keysize, salt);
- if (err)
- goto out;
-
- /*
- * Using SHA256 to derive the salt/key will result in AES-256 being
- * used for IV generation. File contents encryption will still use the
- * configured keysize (AES-128) nevertheless.
- */
- err = crypto_cipher_setkey(essiv_tfm, salt, sizeof(salt));
- if (err)
- goto out;
-
-out:
- memzero_explicit(salt, sizeof(salt));
- return err;
-}
-
-void __exit fscrypt_essiv_cleanup(void)
-{
- crypto_free_shash(essiv_hash_tfm);
-}
-
-int fscrypt_get_encryption_info(struct inode *inode)
-{
- struct fscrypt_info *crypt_info;
- struct fscrypt_context ctx;
- struct crypto_skcipher *ctfm;
- struct fscrypt_mode *mode;
- u8 *raw_key = NULL;
- int res;
-
- if (inode->i_crypt_info)
- return 0;
-
- res = fscrypt_initialize(inode->i_sb->s_cop->flags);
- if (res)
- return res;
-
- res = inode->i_sb->s_cop->get_context(inode, &ctx, sizeof(ctx));
- if (res < 0) {
- if (!fscrypt_dummy_context_enabled(inode) ||
- IS_ENCRYPTED(inode))
- return res;
- /* Fake up a context for an unencrypted directory */
- memset(&ctx, 0, sizeof(ctx));
- ctx.format = FS_ENCRYPTION_CONTEXT_FORMAT_V1;
- ctx.contents_encryption_mode = FS_ENCRYPTION_MODE_AES_256_XTS;
- ctx.filenames_encryption_mode = FS_ENCRYPTION_MODE_AES_256_CTS;
- memset(ctx.master_key_descriptor, 0x42, FS_KEY_DESCRIPTOR_SIZE);
- } else if (res != sizeof(ctx)) {
- return -EINVAL;
- }
-
- if (ctx.format != FS_ENCRYPTION_CONTEXT_FORMAT_V1)
- return -EINVAL;
-
- if (ctx.flags & ~FS_POLICY_FLAGS_VALID)
- return -EINVAL;
-
- crypt_info = kmem_cache_alloc(fscrypt_info_cachep, GFP_NOFS);
- if (!crypt_info)
- return -ENOMEM;
-
- crypt_info->ci_flags = ctx.flags;
- crypt_info->ci_data_mode = ctx.contents_encryption_mode;
- crypt_info->ci_filename_mode = ctx.filenames_encryption_mode;
- crypt_info->ci_ctfm = NULL;
- crypt_info->ci_essiv_tfm = NULL;
- memcpy(crypt_info->ci_master_key, ctx.master_key_descriptor,
- sizeof(crypt_info->ci_master_key));
-
- mode = select_encryption_mode(crypt_info, inode);
- if (IS_ERR(mode)) {
- res = PTR_ERR(mode);
- goto out;
- }
-
- /*
- * This cannot be a stack buffer because it is passed to the scatterlist
- * crypto API as part of key derivation.
- */
- res = -ENOMEM;
- raw_key = kmalloc(mode->keysize, GFP_NOFS);
- if (!raw_key)
- goto out;
-
- res = find_and_derive_key(inode, &ctx, raw_key, mode->keysize);
- if (res)
- goto out;
-
- ctfm = crypto_alloc_skcipher(mode->cipher_str, 0, 0);
- if (IS_ERR(ctfm)) {
- res = PTR_ERR(ctfm);
- fscrypt_warn(inode->i_sb,
- "error allocating '%s' transform for inode %lu: %d",
- mode->cipher_str, inode->i_ino, res);
- goto out;
- }
- if (unlikely(!mode->logged_impl_name)) {
- /*
- * fscrypt performance can vary greatly depending on which
- * crypto algorithm implementation is used. Help people debug
- * performance problems by logging the ->cra_driver_name the
- * first time a mode is used. Note that multiple threads can
- * race here, but it doesn't really matter.
- */
- mode->logged_impl_name = true;
- pr_info("fscrypt: %s using implementation \"%s\"\n",
- mode->friendly_name,
- crypto_skcipher_alg(ctfm)->base.cra_driver_name);
- }
- crypt_info->ci_ctfm = ctfm;
- crypto_skcipher_set_flags(ctfm, CRYPTO_TFM_REQ_WEAK_KEY);
- res = crypto_skcipher_setkey(ctfm, raw_key, mode->keysize);
- if (res)
- goto out;
-
- if (S_ISREG(inode->i_mode) &&
- crypt_info->ci_data_mode == FS_ENCRYPTION_MODE_AES_128_CBC) {
- res = init_essiv_generator(crypt_info, raw_key, mode->keysize);
- if (res) {
- fscrypt_warn(inode->i_sb,
- "error initializing ESSIV generator for inode %lu: %d",
- inode->i_ino, res);
- goto out;
- }
- }
- if (cmpxchg(&inode->i_crypt_info, NULL, crypt_info) == NULL)
- crypt_info = NULL;
-out:
- if (res == -ENOKEY)
- res = 0;
- put_crypt_info(crypt_info);
- kzfree(raw_key);
- return res;
-}
-EXPORT_SYMBOL(fscrypt_get_encryption_info);
-
-void fscrypt_put_encryption_info(struct inode *inode)
-{
- put_crypt_info(inode->i_crypt_info);
- inode->i_crypt_info = NULL;
-}
-EXPORT_SYMBOL(fscrypt_put_encryption_info);
diff --git a/fs/crypto/keyring.c b/fs/crypto/keyring.c
new file mode 100644
index 0000000..dea246b
--- /dev/null
+++ b/fs/crypto/keyring.c
@@ -0,0 +1,1153 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Filesystem-level keyring for fscrypt
+ *
+ * Copyright 2019 Google LLC
+ */
+
+/*
+ * This file implements management of fscrypt master keys in the
+ * filesystem-level keyring, including the ioctls:
+ *
+ * - FS_IOC_ADD_ENCRYPTION_KEY
+ * - FS_IOC_REMOVE_ENCRYPTION_KEY
+ * - FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS
+ * - FS_IOC_GET_ENCRYPTION_KEY_STATUS
+ *
+ * See the "User API" section of Documentation/filesystems/fscrypt.rst for more
+ * information about these ioctls.
+ */
+
+#include <crypto/skcipher.h>
+#include <linux/key-type.h>
+#include <linux/random.h>
+#include <linux/seq_file.h>
+
+#include "fscrypt_private.h"
+
+static void wipe_master_key_secret(struct fscrypt_master_key_secret *secret)
+{
+ fscrypt_destroy_hkdf(&secret->hkdf);
+ memzero_explicit(secret, sizeof(*secret));
+}
+
+static void move_master_key_secret(struct fscrypt_master_key_secret *dst,
+ struct fscrypt_master_key_secret *src)
+{
+ memcpy(dst, src, sizeof(*dst));
+ memzero_explicit(src, sizeof(*src));
+}
+
+static void free_master_key(struct fscrypt_master_key *mk)
+{
+ size_t i;
+
+ wipe_master_key_secret(&mk->mk_secret);
+
+ for (i = 0; i <= __FSCRYPT_MODE_MAX; i++) {
+ fscrypt_destroy_prepared_key(&mk->mk_direct_keys[i]);
+ fscrypt_destroy_prepared_key(&mk->mk_iv_ino_lblk_64_keys[i]);
+ fscrypt_destroy_prepared_key(&mk->mk_iv_ino_lblk_32_keys[i]);
+ }
+
+ key_put(mk->mk_users);
+ kzfree(mk);
+}
+
+static inline bool valid_key_spec(const struct fscrypt_key_specifier *spec)
+{
+ if (spec->__reserved)
+ return false;
+ return master_key_spec_len(spec) != 0;
+}
+
+static int fscrypt_key_instantiate(struct key *key,
+ struct key_preparsed_payload *prep)
+{
+ key->payload.data[0] = (struct fscrypt_master_key *)prep->data;
+ return 0;
+}
+
+static void fscrypt_key_destroy(struct key *key)
+{
+ free_master_key(key->payload.data[0]);
+}
+
+static void fscrypt_key_describe(const struct key *key, struct seq_file *m)
+{
+ seq_puts(m, key->description);
+
+ if (key_is_positive(key)) {
+ const struct fscrypt_master_key *mk = key->payload.data[0];
+
+ if (!is_master_key_secret_present(&mk->mk_secret))
+ seq_puts(m, ": secret removed");
+ }
+}
+
+/*
+ * Type of key in ->s_master_keys. Each key of this type represents a master
+ * key which has been added to the filesystem. Its payload is a
+ * 'struct fscrypt_master_key'. The "." prefix in the key type name prevents
+ * users from adding keys of this type via the keyrings syscalls rather than via
+ * the intended method of FS_IOC_ADD_ENCRYPTION_KEY.
+ */
+static struct key_type key_type_fscrypt = {
+ .name = "._fscrypt",
+ .instantiate = fscrypt_key_instantiate,
+ .destroy = fscrypt_key_destroy,
+ .describe = fscrypt_key_describe,
+};
+
+static int fscrypt_user_key_instantiate(struct key *key,
+ struct key_preparsed_payload *prep)
+{
+ /*
+ * We just charge FSCRYPT_MAX_KEY_SIZE bytes to the user's key quota for
+ * each key, regardless of the exact key size. The amount of memory
+ * actually used is greater than the size of the raw key anyway.
+ */
+ return key_payload_reserve(key, FSCRYPT_MAX_KEY_SIZE);
+}
+
+static void fscrypt_user_key_describe(const struct key *key, struct seq_file *m)
+{
+ seq_puts(m, key->description);
+}
+
+/*
+ * Type of key in ->mk_users. Each key of this type represents a particular
+ * user who has added a particular master key.
+ *
+ * Note that the name of this key type really should be something like
+ * ".fscrypt-user" instead of simply ".fscrypt". But the shorter name is chosen
+ * mainly for simplicity of presentation in /proc/keys when read by a non-root
+ * user. And it is expected to be rare that a key is actually added by multiple
+ * users, since users should keep their encryption keys confidential.
+ */
+static struct key_type key_type_fscrypt_user = {
+ .name = ".fscrypt",
+ .instantiate = fscrypt_user_key_instantiate,
+ .describe = fscrypt_user_key_describe,
+};
+
+/* Search ->s_master_keys or ->mk_users */
+static struct key *search_fscrypt_keyring(struct key *keyring,
+ struct key_type *type,
+ const char *description)
+{
+ /*
+ * We need to mark the keyring reference as "possessed" so that we
+ * acquire permission to search it, via the KEY_POS_SEARCH permission.
+ */
+ key_ref_t keyref = make_key_ref(keyring, true /* possessed */);
+
+ keyref = keyring_search(keyref, type, description);
+ if (IS_ERR(keyref)) {
+ if (PTR_ERR(keyref) == -EAGAIN || /* not found */
+ PTR_ERR(keyref) == -EKEYREVOKED) /* recently invalidated */
+ keyref = ERR_PTR(-ENOKEY);
+ return ERR_CAST(keyref);
+ }
+ return key_ref_to_ptr(keyref);
+}
+
+#define FSCRYPT_FS_KEYRING_DESCRIPTION_SIZE \
+ (CONST_STRLEN("fscrypt-") + FIELD_SIZEOF(struct super_block, s_id))
+
+#define FSCRYPT_MK_DESCRIPTION_SIZE (2 * FSCRYPT_KEY_IDENTIFIER_SIZE + 1)
+
+#define FSCRYPT_MK_USERS_DESCRIPTION_SIZE \
+ (CONST_STRLEN("fscrypt-") + 2 * FSCRYPT_KEY_IDENTIFIER_SIZE + \
+ CONST_STRLEN("-users") + 1)
+
+#define FSCRYPT_MK_USER_DESCRIPTION_SIZE \
+ (2 * FSCRYPT_KEY_IDENTIFIER_SIZE + CONST_STRLEN(".uid.") + 10 + 1)
+
+static void format_fs_keyring_description(
+ char description[FSCRYPT_FS_KEYRING_DESCRIPTION_SIZE],
+ const struct super_block *sb)
+{
+ sprintf(description, "fscrypt-%s", sb->s_id);
+}
+
+static void format_mk_description(
+ char description[FSCRYPT_MK_DESCRIPTION_SIZE],
+ const struct fscrypt_key_specifier *mk_spec)
+{
+ sprintf(description, "%*phN",
+ master_key_spec_len(mk_spec), (u8 *)&mk_spec->u);
+}
+
+static void format_mk_users_keyring_description(
+ char description[FSCRYPT_MK_USERS_DESCRIPTION_SIZE],
+ const u8 mk_identifier[FSCRYPT_KEY_IDENTIFIER_SIZE])
+{
+ sprintf(description, "fscrypt-%*phN-users",
+ FSCRYPT_KEY_IDENTIFIER_SIZE, mk_identifier);
+}
+
+static void format_mk_user_description(
+ char description[FSCRYPT_MK_USER_DESCRIPTION_SIZE],
+ const u8 mk_identifier[FSCRYPT_KEY_IDENTIFIER_SIZE])
+{
+
+ sprintf(description, "%*phN.uid.%u", FSCRYPT_KEY_IDENTIFIER_SIZE,
+ mk_identifier, __kuid_val(current_fsuid()));
+}
+
+/* Create ->s_master_keys if needed. Synchronized by fscrypt_add_key_mutex. */
+static int allocate_filesystem_keyring(struct super_block *sb)
+{
+ char description[FSCRYPT_FS_KEYRING_DESCRIPTION_SIZE];
+ struct key *keyring;
+
+ if (sb->s_master_keys)
+ return 0;
+
+ format_fs_keyring_description(description, sb);
+ keyring = keyring_alloc(description, GLOBAL_ROOT_UID, GLOBAL_ROOT_GID,
+ current_cred(), KEY_POS_SEARCH |
+ KEY_USR_SEARCH | KEY_USR_READ | KEY_USR_VIEW,
+ KEY_ALLOC_NOT_IN_QUOTA, NULL, NULL);
+ if (IS_ERR(keyring))
+ return PTR_ERR(keyring);
+
+ /* Pairs with READ_ONCE() in fscrypt_find_master_key() */
+ smp_store_release(&sb->s_master_keys, keyring);
+ return 0;
+}
+
+void fscrypt_sb_free(struct super_block *sb)
+{
+ key_put(sb->s_master_keys);
+ sb->s_master_keys = NULL;
+}
+
+/*
+ * Find the specified master key in ->s_master_keys.
+ * Returns ERR_PTR(-ENOKEY) if not found.
+ */
+struct key *fscrypt_find_master_key(struct super_block *sb,
+ const struct fscrypt_key_specifier *mk_spec)
+{
+ struct key *keyring;
+ char description[FSCRYPT_MK_DESCRIPTION_SIZE];
+
+ /* pairs with smp_store_release() in allocate_filesystem_keyring() */
+ keyring = READ_ONCE(sb->s_master_keys);
+ if (keyring == NULL)
+ return ERR_PTR(-ENOKEY); /* No keyring yet, so no keys yet. */
+
+ format_mk_description(description, mk_spec);
+ return search_fscrypt_keyring(keyring, &key_type_fscrypt, description);
+}
+
+static int allocate_master_key_users_keyring(struct fscrypt_master_key *mk)
+{
+ char description[FSCRYPT_MK_USERS_DESCRIPTION_SIZE];
+ struct key *keyring;
+
+ format_mk_users_keyring_description(description,
+ mk->mk_spec.u.identifier);
+ keyring = keyring_alloc(description, GLOBAL_ROOT_UID, GLOBAL_ROOT_GID,
+ current_cred(), KEY_POS_SEARCH |
+ KEY_USR_SEARCH | KEY_USR_READ | KEY_USR_VIEW,
+ KEY_ALLOC_NOT_IN_QUOTA, NULL, NULL);
+ if (IS_ERR(keyring))
+ return PTR_ERR(keyring);
+
+ mk->mk_users = keyring;
+ return 0;
+}
+
+/*
+ * Find the current user's "key" in the master key's ->mk_users.
+ * Returns ERR_PTR(-ENOKEY) if not found.
+ */
+static struct key *find_master_key_user(struct fscrypt_master_key *mk)
+{
+ char description[FSCRYPT_MK_USER_DESCRIPTION_SIZE];
+
+ format_mk_user_description(description, mk->mk_spec.u.identifier);
+ return search_fscrypt_keyring(mk->mk_users, &key_type_fscrypt_user,
+ description);
+}
+
+/*
+ * Give the current user a "key" in ->mk_users. This charges the user's quota
+ * and marks the master key as added by the current user, so that it cannot be
+ * removed by another user with the key. Either the master key's key->sem must
+ * be held for write, or the master key must be still undergoing initialization.
+ */
+static int add_master_key_user(struct fscrypt_master_key *mk)
+{
+ char description[FSCRYPT_MK_USER_DESCRIPTION_SIZE];
+ struct key *mk_user;
+ int err;
+
+ format_mk_user_description(description, mk->mk_spec.u.identifier);
+ mk_user = key_alloc(&key_type_fscrypt_user, description,
+ current_fsuid(), current_gid(), current_cred(),
+ KEY_POS_SEARCH | KEY_USR_VIEW, 0, NULL);
+ if (IS_ERR(mk_user))
+ return PTR_ERR(mk_user);
+
+ err = key_instantiate_and_link(mk_user, NULL, 0, mk->mk_users, NULL);
+ key_put(mk_user);
+ return err;
+}
+
+/*
+ * Remove the current user's "key" from ->mk_users.
+ * The master key's key->sem must be held for write.
+ *
+ * Returns 0 if removed, -ENOKEY if not found, or another -errno code.
+ */
+static int remove_master_key_user(struct fscrypt_master_key *mk)
+{
+ struct key *mk_user;
+ int err;
+
+ mk_user = find_master_key_user(mk);
+ if (IS_ERR(mk_user))
+ return PTR_ERR(mk_user);
+ err = key_unlink(mk->mk_users, mk_user);
+ key_put(mk_user);
+ return err;
+}
+
+/*
+ * Allocate a new fscrypt_master_key which contains the given secret, set it as
+ * the payload of a new 'struct key' of type fscrypt, and link the 'struct key'
+ * into the given keyring. Synchronized by fscrypt_add_key_mutex.
+ */
+static int add_new_master_key(struct fscrypt_master_key_secret *secret,
+ const struct fscrypt_key_specifier *mk_spec,
+ struct key *keyring)
+{
+ struct fscrypt_master_key *mk;
+ char description[FSCRYPT_MK_DESCRIPTION_SIZE];
+ struct key *key;
+ int err;
+
+ mk = kzalloc(sizeof(*mk), GFP_KERNEL);
+ if (!mk)
+ return -ENOMEM;
+
+ mk->mk_spec = *mk_spec;
+
+ move_master_key_secret(&mk->mk_secret, secret);
+ init_rwsem(&mk->mk_secret_sem);
+
+ refcount_set(&mk->mk_refcount, 1); /* secret is present */
+ INIT_LIST_HEAD(&mk->mk_decrypted_inodes);
+ spin_lock_init(&mk->mk_decrypted_inodes_lock);
+
+ if (mk_spec->type == FSCRYPT_KEY_SPEC_TYPE_IDENTIFIER) {
+ err = allocate_master_key_users_keyring(mk);
+ if (err)
+ goto out_free_mk;
+ err = add_master_key_user(mk);
+ if (err)
+ goto out_free_mk;
+ }
+
+ /*
+ * Note that we don't charge this key to anyone's quota, since when
+ * ->mk_users is in use those keys are charged instead, and otherwise
+ * (when ->mk_users isn't in use) only root can add these keys.
+ */
+ format_mk_description(description, mk_spec);
+ key = key_alloc(&key_type_fscrypt, description,
+ GLOBAL_ROOT_UID, GLOBAL_ROOT_GID, current_cred(),
+ KEY_POS_SEARCH | KEY_USR_SEARCH | KEY_USR_VIEW,
+ KEY_ALLOC_NOT_IN_QUOTA, NULL);
+ if (IS_ERR(key)) {
+ err = PTR_ERR(key);
+ goto out_free_mk;
+ }
+ err = key_instantiate_and_link(key, mk, sizeof(*mk), keyring, NULL);
+ key_put(key);
+ if (err)
+ goto out_free_mk;
+
+ return 0;
+
+out_free_mk:
+ free_master_key(mk);
+ return err;
+}
+
+#define KEY_DEAD 1
+
+static int add_existing_master_key(struct fscrypt_master_key *mk,
+ struct fscrypt_master_key_secret *secret)
+{
+ struct key *mk_user;
+ bool rekey;
+ int err;
+
+ /*
+ * If the current user is already in ->mk_users, then there's nothing to
+ * do. (Not applicable for v1 policy keys, which have NULL ->mk_users.)
+ */
+ if (mk->mk_users) {
+ mk_user = find_master_key_user(mk);
+ if (mk_user != ERR_PTR(-ENOKEY)) {
+ if (IS_ERR(mk_user))
+ return PTR_ERR(mk_user);
+ key_put(mk_user);
+ return 0;
+ }
+ }
+
+ /* If we'll be re-adding ->mk_secret, try to take the reference. */
+ rekey = !is_master_key_secret_present(&mk->mk_secret);
+ if (rekey && !refcount_inc_not_zero(&mk->mk_refcount))
+ return KEY_DEAD;
+
+ /* Add the current user to ->mk_users, if applicable. */
+ if (mk->mk_users) {
+ err = add_master_key_user(mk);
+ if (err) {
+ if (rekey && refcount_dec_and_test(&mk->mk_refcount))
+ return KEY_DEAD;
+ return err;
+ }
+ }
+
+ /* Re-add the secret if needed. */
+ if (rekey) {
+ down_write(&mk->mk_secret_sem);
+ move_master_key_secret(&mk->mk_secret, secret);
+ up_write(&mk->mk_secret_sem);
+ }
+ return 0;
+}
+
+static int do_add_master_key(struct super_block *sb,
+ struct fscrypt_master_key_secret *secret,
+ const struct fscrypt_key_specifier *mk_spec)
+{
+ static DEFINE_MUTEX(fscrypt_add_key_mutex);
+ struct key *key;
+ int err;
+
+ mutex_lock(&fscrypt_add_key_mutex); /* serialize find + link */
+retry:
+ key = fscrypt_find_master_key(sb, mk_spec);
+ if (IS_ERR(key)) {
+ err = PTR_ERR(key);
+ if (err != -ENOKEY)
+ goto out_unlock;
+ /* Didn't find the key in ->s_master_keys. Add it. */
+ err = allocate_filesystem_keyring(sb);
+ if (err)
+ goto out_unlock;
+ err = add_new_master_key(secret, mk_spec, sb->s_master_keys);
+ } else {
+ /*
+ * Found the key in ->s_master_keys. Re-add the secret if
+ * needed, and add the user to ->mk_users if needed.
+ */
+ down_write(&key->sem);
+ err = add_existing_master_key(key->payload.data[0], secret);
+ up_write(&key->sem);
+ if (err == KEY_DEAD) {
+ /* Key being removed or needs to be removed */
+ key_invalidate(key);
+ key_put(key);
+ goto retry;
+ }
+ key_put(key);
+ }
+out_unlock:
+ mutex_unlock(&fscrypt_add_key_mutex);
+ return err;
+}
+
+/* Size of software "secret" derived from hardware-wrapped key */
+#define RAW_SECRET_SIZE 32
+
+static int add_master_key(struct super_block *sb,
+ struct fscrypt_master_key_secret *secret,
+ struct fscrypt_key_specifier *key_spec)
+{
+ int err;
+
+ if (key_spec->type == FSCRYPT_KEY_SPEC_TYPE_IDENTIFIER) {
+ u8 _kdf_key[RAW_SECRET_SIZE];
+ u8 *kdf_key = secret->raw;
+ unsigned int kdf_key_size = secret->size;
+
+ if (secret->is_hw_wrapped) {
+ kdf_key = _kdf_key;
+ kdf_key_size = RAW_SECRET_SIZE;
+ err = fscrypt_derive_raw_secret(sb, secret->raw,
+ secret->size,
+ kdf_key, kdf_key_size);
+ if (err)
+ return err;
+ }
+ err = fscrypt_init_hkdf(&secret->hkdf, kdf_key, kdf_key_size);
+ /*
+ * Now that the HKDF context is initialized, the raw HKDF key is
+ * no longer needed.
+ */
+ memzero_explicit(kdf_key, kdf_key_size);
+ if (err)
+ return err;
+
+ /* Calculate the key identifier */
+ err = fscrypt_hkdf_expand(&secret->hkdf,
+ HKDF_CONTEXT_KEY_IDENTIFIER, NULL, 0,
+ key_spec->u.identifier,
+ FSCRYPT_KEY_IDENTIFIER_SIZE);
+ if (err)
+ return err;
+ }
+ return do_add_master_key(sb, secret, key_spec);
+}
+
+static int fscrypt_provisioning_key_preparse(struct key_preparsed_payload *prep)
+{
+ const struct fscrypt_provisioning_key_payload *payload = prep->data;
+
+ BUILD_BUG_ON(FSCRYPT_MAX_HW_WRAPPED_KEY_SIZE < FSCRYPT_MAX_KEY_SIZE);
+
+ if (prep->datalen < sizeof(*payload) + FSCRYPT_MIN_KEY_SIZE ||
+ prep->datalen > sizeof(*payload) + FSCRYPT_MAX_HW_WRAPPED_KEY_SIZE)
+ return -EINVAL;
+
+ if (payload->type != FSCRYPT_KEY_SPEC_TYPE_DESCRIPTOR &&
+ payload->type != FSCRYPT_KEY_SPEC_TYPE_IDENTIFIER)
+ return -EINVAL;
+
+ if (payload->__reserved)
+ return -EINVAL;
+
+ prep->payload.data[0] = kmemdup(payload, prep->datalen, GFP_KERNEL);
+ if (!prep->payload.data[0])
+ return -ENOMEM;
+
+ prep->quotalen = prep->datalen;
+ return 0;
+}
+
+static void fscrypt_provisioning_key_free_preparse(
+ struct key_preparsed_payload *prep)
+{
+ kzfree(prep->payload.data[0]);
+}
+
+static void fscrypt_provisioning_key_describe(const struct key *key,
+ struct seq_file *m)
+{
+ seq_puts(m, key->description);
+ if (key_is_positive(key)) {
+ const struct fscrypt_provisioning_key_payload *payload =
+ key->payload.data[0];
+
+ seq_printf(m, ": %u [%u]", key->datalen, payload->type);
+ }
+}
+
+static void fscrypt_provisioning_key_destroy(struct key *key)
+{
+ kzfree(key->payload.data[0]);
+}
+
+static struct key_type key_type_fscrypt_provisioning = {
+ .name = "fscrypt-provisioning",
+ .preparse = fscrypt_provisioning_key_preparse,
+ .free_preparse = fscrypt_provisioning_key_free_preparse,
+ .instantiate = generic_key_instantiate,
+ .describe = fscrypt_provisioning_key_describe,
+ .destroy = fscrypt_provisioning_key_destroy,
+};
+
+/*
+ * Retrieve the raw key from the Linux keyring key specified by 'key_id', and
+ * store it into 'secret'.
+ *
+ * The key must be of type "fscrypt-provisioning" and must have the field
+ * fscrypt_provisioning_key_payload::type set to 'type', indicating that it's
+ * only usable with fscrypt with the particular KDF version identified by
+ * 'type'. We don't use the "logon" key type because there's no way to
+ * completely restrict the use of such keys; they can be used by any kernel API
+ * that accepts "logon" keys and doesn't require a specific service prefix.
+ *
+ * The ability to specify the key via Linux keyring key is intended for cases
+ * where userspace needs to re-add keys after the filesystem is unmounted and
+ * re-mounted. Most users should just provide the raw key directly instead.
+ */
+static int get_keyring_key(u32 key_id, u32 type,
+ struct fscrypt_master_key_secret *secret)
+{
+ key_ref_t ref;
+ struct key *key;
+ const struct fscrypt_provisioning_key_payload *payload;
+ int err;
+
+ ref = lookup_user_key(key_id, 0, KEY_NEED_SEARCH);
+ if (IS_ERR(ref))
+ return PTR_ERR(ref);
+ key = key_ref_to_ptr(ref);
+
+ if (key->type != &key_type_fscrypt_provisioning)
+ goto bad_key;
+ payload = key->payload.data[0];
+
+ /* Don't allow fscrypt v1 keys to be used as v2 keys and vice versa. */
+ if (payload->type != type)
+ goto bad_key;
+
+ secret->size = key->datalen - sizeof(*payload);
+ memcpy(secret->raw, payload->raw, secret->size);
+ err = 0;
+ goto out_put;
+
+bad_key:
+ err = -EKEYREJECTED;
+out_put:
+ key_ref_put(ref);
+ return err;
+}
+
+/*
+ * Add a master encryption key to the filesystem, causing all files which were
+ * encrypted with it to appear "unlocked" (decrypted) when accessed.
+ *
+ * When adding a key for use by v1 encryption policies, this ioctl is
+ * privileged, and userspace must provide the 'key_descriptor'.
+ *
+ * When adding a key for use by v2+ encryption policies, this ioctl is
+ * unprivileged. This is needed, in general, to allow non-root users to use
+ * encryption without encountering the visibility problems of process-subscribed
+ * keyrings and the inability to properly remove keys. This works by having
+ * each key identified by its cryptographically secure hash --- the
+ * 'key_identifier'. The cryptographic hash ensures that a malicious user
+ * cannot add the wrong key for a given identifier. Furthermore, each added key
+ * is charged to the appropriate user's quota for the keyrings service, which
+ * prevents a malicious user from adding too many keys. Finally, we forbid a
+ * user from removing a key while other users have added it too, which prevents
+ * a user who knows another user's key from causing a denial-of-service by
+ * removing it at an inopportune time. (We tolerate that a user who knows a key
+ * can prevent other users from removing it.)
+ *
+ * For more details, see the "FS_IOC_ADD_ENCRYPTION_KEY" section of
+ * Documentation/filesystems/fscrypt.rst.
+ */
+int fscrypt_ioctl_add_key(struct file *filp, void __user *_uarg)
+{
+ struct super_block *sb = file_inode(filp)->i_sb;
+ struct fscrypt_add_key_arg __user *uarg = _uarg;
+ struct fscrypt_add_key_arg arg;
+ struct fscrypt_master_key_secret secret;
+ int err;
+
+ if (copy_from_user(&arg, uarg, sizeof(arg)))
+ return -EFAULT;
+
+ if (!valid_key_spec(&arg.key_spec))
+ return -EINVAL;
+
+ if (memchr_inv(arg.__reserved, 0, sizeof(arg.__reserved)))
+ return -EINVAL;
+
+ /*
+ * Only root can add keys that are identified by an arbitrary descriptor
+ * rather than by a cryptographic hash --- since otherwise a malicious
+ * user could add the wrong key.
+ */
+ if (arg.key_spec.type == FSCRYPT_KEY_SPEC_TYPE_DESCRIPTOR &&
+ !capable(CAP_SYS_ADMIN))
+ return -EACCES;
+
+ memset(&secret, 0, sizeof(secret));
+
+ if (arg.__flags) {
+ if (arg.__flags & ~__FSCRYPT_ADD_KEY_FLAG_HW_WRAPPED)
+ return -EINVAL;
+ if (arg.key_spec.type != FSCRYPT_KEY_SPEC_TYPE_IDENTIFIER)
+ return -EINVAL;
+ secret.is_hw_wrapped = true;
+ }
+
+ if (arg.key_id) {
+ if (arg.raw_size != 0)
+ return -EINVAL;
+ err = get_keyring_key(arg.key_id, arg.key_spec.type, &secret);
+ if (err)
+ goto out_wipe_secret;
+ err = -EINVAL;
+ if (secret.size > FSCRYPT_MAX_KEY_SIZE && !secret.is_hw_wrapped)
+ goto out_wipe_secret;
+ } else {
+ if (arg.raw_size < FSCRYPT_MIN_KEY_SIZE ||
+ arg.raw_size > (secret.is_hw_wrapped ?
+ FSCRYPT_MAX_HW_WRAPPED_KEY_SIZE :
+ FSCRYPT_MAX_KEY_SIZE))
+ return -EINVAL;
+ secret.size = arg.raw_size;
+ err = -EFAULT;
+ if (copy_from_user(secret.raw, uarg->raw, secret.size))
+ goto out_wipe_secret;
+ }
+
+ err = add_master_key(sb, &secret, &arg.key_spec);
+ if (err)
+ goto out_wipe_secret;
+
+ /* Return the key identifier to userspace, if applicable */
+ err = -EFAULT;
+ if (arg.key_spec.type == FSCRYPT_KEY_SPEC_TYPE_IDENTIFIER &&
+ copy_to_user(uarg->key_spec.u.identifier, arg.key_spec.u.identifier,
+ FSCRYPT_KEY_IDENTIFIER_SIZE))
+ goto out_wipe_secret;
+ err = 0;
+out_wipe_secret:
+ wipe_master_key_secret(&secret);
+ return err;
+}
+EXPORT_SYMBOL_GPL(fscrypt_ioctl_add_key);
+
+/*
+ * Add the key for '-o test_dummy_encryption' to the filesystem keyring.
+ *
+ * Use a per-boot random key to prevent people from misusing this option.
+ */
+int fscrypt_add_test_dummy_key(struct super_block *sb,
+ struct fscrypt_key_specifier *key_spec)
+{
+ static u8 test_key[FSCRYPT_MAX_KEY_SIZE];
+ struct fscrypt_master_key_secret secret;
+ int err;
+
+ get_random_once(test_key, FSCRYPT_MAX_KEY_SIZE);
+
+ memset(&secret, 0, sizeof(secret));
+ secret.size = FSCRYPT_MAX_KEY_SIZE;
+ memcpy(secret.raw, test_key, FSCRYPT_MAX_KEY_SIZE);
+
+ err = add_master_key(sb, &secret, key_spec);
+ wipe_master_key_secret(&secret);
+ return err;
+}
+
+/*
+ * Verify that the current user has added a master key with the given identifier
+ * (returns -ENOKEY if not). This is needed to prevent a user from encrypting
+ * their files using some other user's key which they don't actually know.
+ * Cryptographically this isn't much of a problem, but the semantics of this
+ * would be a bit weird, so it's best to just forbid it.
+ *
+ * The system administrator (CAP_FOWNER) can override this, which should be
+ * enough for any use cases where encryption policies are being set using keys
+ * that were chosen ahead of time but aren't available at the moment.
+ *
+ * Note that the key may have already removed by the time this returns, but
+ * that's okay; we just care whether the key was there at some point.
+ *
+ * Return: 0 if the key is added, -ENOKEY if it isn't, or another -errno code
+ */
+int fscrypt_verify_key_added(struct super_block *sb,
+ const u8 identifier[FSCRYPT_KEY_IDENTIFIER_SIZE])
+{
+ struct fscrypt_key_specifier mk_spec;
+ struct key *key, *mk_user;
+ struct fscrypt_master_key *mk;
+ int err;
+
+ mk_spec.type = FSCRYPT_KEY_SPEC_TYPE_IDENTIFIER;
+ memcpy(mk_spec.u.identifier, identifier, FSCRYPT_KEY_IDENTIFIER_SIZE);
+
+ key = fscrypt_find_master_key(sb, &mk_spec);
+ if (IS_ERR(key)) {
+ err = PTR_ERR(key);
+ goto out;
+ }
+ mk = key->payload.data[0];
+ mk_user = find_master_key_user(mk);
+ if (IS_ERR(mk_user)) {
+ err = PTR_ERR(mk_user);
+ } else {
+ key_put(mk_user);
+ err = 0;
+ }
+ key_put(key);
+out:
+ if (err == -ENOKEY && capable(CAP_FOWNER))
+ err = 0;
+ return err;
+}
+
+/*
+ * Try to evict the inode's dentries from the dentry cache. If the inode is a
+ * directory, then it can have at most one dentry; however, that dentry may be
+ * pinned by child dentries, so first try to evict the children too.
+ */
+static void shrink_dcache_inode(struct inode *inode)
+{
+ struct dentry *dentry;
+
+ if (S_ISDIR(inode->i_mode)) {
+ dentry = d_find_any_alias(inode);
+ if (dentry) {
+ shrink_dcache_parent(dentry);
+ dput(dentry);
+ }
+ }
+ d_prune_aliases(inode);
+}
+
+static void evict_dentries_for_decrypted_inodes(struct fscrypt_master_key *mk)
+{
+ struct fscrypt_info *ci;
+ struct inode *inode;
+ struct inode *toput_inode = NULL;
+
+ spin_lock(&mk->mk_decrypted_inodes_lock);
+
+ list_for_each_entry(ci, &mk->mk_decrypted_inodes, ci_master_key_link) {
+ inode = ci->ci_inode;
+ spin_lock(&inode->i_lock);
+ if (inode->i_state & (I_FREEING | I_WILL_FREE | I_NEW)) {
+ spin_unlock(&inode->i_lock);
+ continue;
+ }
+ __iget(inode);
+ spin_unlock(&inode->i_lock);
+ spin_unlock(&mk->mk_decrypted_inodes_lock);
+
+ shrink_dcache_inode(inode);
+ iput(toput_inode);
+ toput_inode = inode;
+
+ spin_lock(&mk->mk_decrypted_inodes_lock);
+ }
+
+ spin_unlock(&mk->mk_decrypted_inodes_lock);
+ iput(toput_inode);
+}
+
+static int check_for_busy_inodes(struct super_block *sb,
+ struct fscrypt_master_key *mk)
+{
+ struct list_head *pos;
+ size_t busy_count = 0;
+ unsigned long ino;
+
+ spin_lock(&mk->mk_decrypted_inodes_lock);
+
+ list_for_each(pos, &mk->mk_decrypted_inodes)
+ busy_count++;
+
+ if (busy_count == 0) {
+ spin_unlock(&mk->mk_decrypted_inodes_lock);
+ return 0;
+ }
+
+ {
+ /* select an example file to show for debugging purposes */
+ struct inode *inode =
+ list_first_entry(&mk->mk_decrypted_inodes,
+ struct fscrypt_info,
+ ci_master_key_link)->ci_inode;
+ ino = inode->i_ino;
+ }
+ spin_unlock(&mk->mk_decrypted_inodes_lock);
+
+ fscrypt_warn(NULL,
+ "%s: %zu inode(s) still busy after removing key with %s %*phN, including ino %lu",
+ sb->s_id, busy_count, master_key_spec_type(&mk->mk_spec),
+ master_key_spec_len(&mk->mk_spec), (u8 *)&mk->mk_spec.u,
+ ino);
+ return -EBUSY;
+}
+
+static int try_to_lock_encrypted_files(struct super_block *sb,
+ struct fscrypt_master_key *mk)
+{
+ int err1;
+ int err2;
+
+ /*
+ * An inode can't be evicted while it is dirty or has dirty pages.
+ * Thus, we first have to clean the inodes in ->mk_decrypted_inodes.
+ *
+ * Just do it the easy way: call sync_filesystem(). It's overkill, but
+ * it works, and it's more important to minimize the amount of caches we
+ * drop than the amount of data we sync. Also, unprivileged users can
+ * already call sync_filesystem() via sys_syncfs() or sys_sync().
+ */
+ down_read(&sb->s_umount);
+ err1 = sync_filesystem(sb);
+ up_read(&sb->s_umount);
+ /* If a sync error occurs, still try to evict as much as possible. */
+
+ /*
+ * Inodes are pinned by their dentries, so we have to evict their
+ * dentries. shrink_dcache_sb() would suffice, but would be overkill
+ * and inappropriate for use by unprivileged users. So instead go
+ * through the inodes' alias lists and try to evict each dentry.
+ */
+ evict_dentries_for_decrypted_inodes(mk);
+
+ /*
+ * evict_dentries_for_decrypted_inodes() already iput() each inode in
+ * the list; any inodes for which that dropped the last reference will
+ * have been evicted due to fscrypt_drop_inode() detecting the key
+ * removal and telling the VFS to evict the inode. So to finish, we
+ * just need to check whether any inodes couldn't be evicted.
+ */
+ err2 = check_for_busy_inodes(sb, mk);
+
+ return err1 ?: err2;
+}
+
+/*
+ * Try to remove an fscrypt master encryption key.
+ *
+ * FS_IOC_REMOVE_ENCRYPTION_KEY (all_users=false) removes the current user's
+ * claim to the key, then removes the key itself if no other users have claims.
+ * FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS (all_users=true) always removes the
+ * key itself.
+ *
+ * To "remove the key itself", first we wipe the actual master key secret, so
+ * that no more inodes can be unlocked with it. Then we try to evict all cached
+ * inodes that had been unlocked with the key.
+ *
+ * If all inodes were evicted, then we unlink the fscrypt_master_key from the
+ * keyring. Otherwise it remains in the keyring in the "incompletely removed"
+ * state (without the actual secret key) where it tracks the list of remaining
+ * inodes. Userspace can execute the ioctl again later to retry eviction, or
+ * alternatively can re-add the secret key again.
+ *
+ * For more details, see the "Removing keys" section of
+ * Documentation/filesystems/fscrypt.rst.
+ */
+static int do_remove_key(struct file *filp, void __user *_uarg, bool all_users)
+{
+ struct super_block *sb = file_inode(filp)->i_sb;
+ struct fscrypt_remove_key_arg __user *uarg = _uarg;
+ struct fscrypt_remove_key_arg arg;
+ struct key *key;
+ struct fscrypt_master_key *mk;
+ u32 status_flags = 0;
+ int err;
+ bool dead;
+
+ if (copy_from_user(&arg, uarg, sizeof(arg)))
+ return -EFAULT;
+
+ if (!valid_key_spec(&arg.key_spec))
+ return -EINVAL;
+
+ if (memchr_inv(arg.__reserved, 0, sizeof(arg.__reserved)))
+ return -EINVAL;
+
+ /*
+ * Only root can add and remove keys that are identified by an arbitrary
+ * descriptor rather than by a cryptographic hash.
+ */
+ if (arg.key_spec.type == FSCRYPT_KEY_SPEC_TYPE_DESCRIPTOR &&
+ !capable(CAP_SYS_ADMIN))
+ return -EACCES;
+
+ /* Find the key being removed. */
+ key = fscrypt_find_master_key(sb, &arg.key_spec);
+ if (IS_ERR(key))
+ return PTR_ERR(key);
+ mk = key->payload.data[0];
+
+ down_write(&key->sem);
+
+ /* If relevant, remove current user's (or all users) claim to the key */
+ if (mk->mk_users && mk->mk_users->keys.nr_leaves_on_tree != 0) {
+ if (all_users)
+ err = keyring_clear(mk->mk_users);
+ else
+ err = remove_master_key_user(mk);
+ if (err) {
+ up_write(&key->sem);
+ goto out_put_key;
+ }
+ if (mk->mk_users->keys.nr_leaves_on_tree != 0) {
+ /*
+ * Other users have still added the key too. We removed
+ * the current user's claim to the key, but we still
+ * can't remove the key itself.
+ */
+ status_flags |=
+ FSCRYPT_KEY_REMOVAL_STATUS_FLAG_OTHER_USERS;
+ err = 0;
+ up_write(&key->sem);
+ goto out_put_key;
+ }
+ }
+
+ /* No user claims remaining. Go ahead and wipe the secret. */
+ dead = false;
+ if (is_master_key_secret_present(&mk->mk_secret)) {
+ down_write(&mk->mk_secret_sem);
+ wipe_master_key_secret(&mk->mk_secret);
+ dead = refcount_dec_and_test(&mk->mk_refcount);
+ up_write(&mk->mk_secret_sem);
+ }
+ up_write(&key->sem);
+ if (dead) {
+ /*
+ * No inodes reference the key, and we wiped the secret, so the
+ * key object is free to be removed from the keyring.
+ */
+ key_invalidate(key);
+ err = 0;
+ } else {
+ /* Some inodes still reference this key; try to evict them. */
+ err = try_to_lock_encrypted_files(sb, mk);
+ if (err == -EBUSY) {
+ status_flags |=
+ FSCRYPT_KEY_REMOVAL_STATUS_FLAG_FILES_BUSY;
+ err = 0;
+ }
+ }
+ /*
+ * We return 0 if we successfully did something: removed a claim to the
+ * key, wiped the secret, or tried locking the files again. Users need
+ * to check the informational status flags if they care whether the key
+ * has been fully removed including all files locked.
+ */
+out_put_key:
+ key_put(key);
+ if (err == 0)
+ err = put_user(status_flags, &uarg->removal_status_flags);
+ return err;
+}
+
+int fscrypt_ioctl_remove_key(struct file *filp, void __user *uarg)
+{
+ return do_remove_key(filp, uarg, false);
+}
+EXPORT_SYMBOL_GPL(fscrypt_ioctl_remove_key);
+
+int fscrypt_ioctl_remove_key_all_users(struct file *filp, void __user *uarg)
+{
+ if (!capable(CAP_SYS_ADMIN))
+ return -EACCES;
+ return do_remove_key(filp, uarg, true);
+}
+EXPORT_SYMBOL_GPL(fscrypt_ioctl_remove_key_all_users);
+
+/*
+ * Retrieve the status of an fscrypt master encryption key.
+ *
+ * We set ->status to indicate whether the key is absent, present, or
+ * incompletely removed. "Incompletely removed" means that the master key
+ * secret has been removed, but some files which had been unlocked with it are
+ * still in use. This field allows applications to easily determine the state
+ * of an encrypted directory without using a hack such as trying to open a
+ * regular file in it (which can confuse the "incompletely removed" state with
+ * absent or present).
+ *
+ * In addition, for v2 policy keys we allow applications to determine, via
+ * ->status_flags and ->user_count, whether the key has been added by the
+ * current user, by other users, or by both. Most applications should not need
+ * this, since ordinarily only one user should know a given key. However, if a
+ * secret key is shared by multiple users, applications may wish to add an
+ * already-present key to prevent other users from removing it. This ioctl can
+ * be used to check whether that really is the case before the work is done to
+ * add the key --- which might e.g. require prompting the user for a passphrase.
+ *
+ * For more details, see the "FS_IOC_GET_ENCRYPTION_KEY_STATUS" section of
+ * Documentation/filesystems/fscrypt.rst.
+ */
+int fscrypt_ioctl_get_key_status(struct file *filp, void __user *uarg)
+{
+ struct super_block *sb = file_inode(filp)->i_sb;
+ struct fscrypt_get_key_status_arg arg;
+ struct key *key;
+ struct fscrypt_master_key *mk;
+ int err;
+
+ if (copy_from_user(&arg, uarg, sizeof(arg)))
+ return -EFAULT;
+
+ if (!valid_key_spec(&arg.key_spec))
+ return -EINVAL;
+
+ if (memchr_inv(arg.__reserved, 0, sizeof(arg.__reserved)))
+ return -EINVAL;
+
+ arg.status_flags = 0;
+ arg.user_count = 0;
+ memset(arg.__out_reserved, 0, sizeof(arg.__out_reserved));
+
+ key = fscrypt_find_master_key(sb, &arg.key_spec);
+ if (IS_ERR(key)) {
+ if (key != ERR_PTR(-ENOKEY))
+ return PTR_ERR(key);
+ arg.status = FSCRYPT_KEY_STATUS_ABSENT;
+ err = 0;
+ goto out;
+ }
+ mk = key->payload.data[0];
+ down_read(&key->sem);
+
+ if (!is_master_key_secret_present(&mk->mk_secret)) {
+ arg.status = FSCRYPT_KEY_STATUS_INCOMPLETELY_REMOVED;
+ err = 0;
+ goto out_release_key;
+ }
+
+ arg.status = FSCRYPT_KEY_STATUS_PRESENT;
+ if (mk->mk_users) {
+ struct key *mk_user;
+
+ arg.user_count = mk->mk_users->keys.nr_leaves_on_tree;
+ mk_user = find_master_key_user(mk);
+ if (!IS_ERR(mk_user)) {
+ arg.status_flags |=
+ FSCRYPT_KEY_STATUS_FLAG_ADDED_BY_SELF;
+ key_put(mk_user);
+ } else if (mk_user != ERR_PTR(-ENOKEY)) {
+ err = PTR_ERR(mk_user);
+ goto out_release_key;
+ }
+ }
+ err = 0;
+out_release_key:
+ up_read(&key->sem);
+ key_put(key);
+out:
+ if (!err && copy_to_user(uarg, &arg, sizeof(arg)))
+ err = -EFAULT;
+ return err;
+}
+EXPORT_SYMBOL_GPL(fscrypt_ioctl_get_key_status);
+
+int __init fscrypt_init_keyring(void)
+{
+ int err;
+
+ err = register_key_type(&key_type_fscrypt);
+ if (err)
+ return err;
+
+ err = register_key_type(&key_type_fscrypt_user);
+ if (err)
+ goto err_unregister_fscrypt;
+
+ err = register_key_type(&key_type_fscrypt_provisioning);
+ if (err)
+ goto err_unregister_fscrypt_user;
+
+ return 0;
+
+err_unregister_fscrypt_user:
+ unregister_key_type(&key_type_fscrypt_user);
+err_unregister_fscrypt:
+ unregister_key_type(&key_type_fscrypt);
+ return err;
+}
diff --git a/fs/crypto/keysetup.c b/fs/crypto/keysetup.c
new file mode 100644
index 0000000..e894f19
--- /dev/null
+++ b/fs/crypto/keysetup.c
@@ -0,0 +1,668 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Key setup facility for FS encryption support.
+ *
+ * Copyright (C) 2015, Google, Inc.
+ *
+ * Originally written by Michael Halcrow, Ildar Muslukhov, and Uday Savagaonkar.
+ * Heavily modified since then.
+ */
+
+#include <crypto/skcipher.h>
+#include <linux/key.h>
+
+#include "fscrypt_private.h"
+
+struct fscrypt_mode fscrypt_modes[] = {
+ [FSCRYPT_MODE_AES_256_XTS] = {
+ .friendly_name = "AES-256-XTS",
+ .cipher_str = "xts(aes)",
+ .keysize = 64,
+ .ivsize = 16,
+ .blk_crypto_mode = BLK_ENCRYPTION_MODE_AES_256_XTS,
+ },
+ [FSCRYPT_MODE_AES_256_CTS] = {
+ .friendly_name = "AES-256-CTS-CBC",
+ .cipher_str = "cts(cbc(aes))",
+ .keysize = 32,
+ .ivsize = 16,
+ },
+ [FSCRYPT_MODE_AES_128_CBC] = {
+ .friendly_name = "AES-128-CBC-ESSIV",
+ .cipher_str = "essiv(cbc(aes),sha256)",
+ .keysize = 16,
+ .ivsize = 16,
+ .blk_crypto_mode = BLK_ENCRYPTION_MODE_AES_128_CBC_ESSIV,
+ },
+ [FSCRYPT_MODE_AES_128_CTS] = {
+ .friendly_name = "AES-128-CTS-CBC",
+ .cipher_str = "cts(cbc(aes))",
+ .keysize = 16,
+ .ivsize = 16,
+ },
+ [FSCRYPT_MODE_ADIANTUM] = {
+ .friendly_name = "Adiantum",
+ .cipher_str = "adiantum(xchacha12,aes)",
+ .keysize = 32,
+ .ivsize = 32,
+ .blk_crypto_mode = BLK_ENCRYPTION_MODE_ADIANTUM,
+ },
+};
+
+static DEFINE_MUTEX(fscrypt_mode_key_setup_mutex);
+
+static struct fscrypt_mode *
+select_encryption_mode(const union fscrypt_policy *policy,
+ const struct inode *inode)
+{
+ if (S_ISREG(inode->i_mode))
+ return &fscrypt_modes[fscrypt_policy_contents_mode(policy)];
+
+ if (S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode))
+ return &fscrypt_modes[fscrypt_policy_fnames_mode(policy)];
+
+ WARN_ONCE(1, "fscrypt: filesystem tried to load encryption info for inode %lu, which is not encryptable (file type %d)\n",
+ inode->i_ino, (inode->i_mode & S_IFMT));
+ return ERR_PTR(-EINVAL);
+}
+
+/* Create a symmetric cipher object for the given encryption mode and key */
+static struct crypto_skcipher *
+fscrypt_allocate_skcipher(struct fscrypt_mode *mode, const u8 *raw_key,
+ const struct inode *inode)
+{
+ struct crypto_skcipher *tfm;
+ int err;
+
+ tfm = crypto_alloc_skcipher(mode->cipher_str, 0, 0);
+ if (IS_ERR(tfm)) {
+ if (PTR_ERR(tfm) == -ENOENT) {
+ fscrypt_warn(inode,
+ "Missing crypto API support for %s (API name: \"%s\")",
+ mode->friendly_name, mode->cipher_str);
+ return ERR_PTR(-ENOPKG);
+ }
+ fscrypt_err(inode, "Error allocating '%s' transform: %ld",
+ mode->cipher_str, PTR_ERR(tfm));
+ return tfm;
+ }
+ if (!xchg(&mode->logged_impl_name, 1)) {
+ /*
+ * fscrypt performance can vary greatly depending on which
+ * crypto algorithm implementation is used. Help people debug
+ * performance problems by logging the ->cra_driver_name the
+ * first time a mode is used.
+ */
+ pr_info("fscrypt: %s using implementation \"%s\"\n",
+ mode->friendly_name, crypto_skcipher_driver_name(tfm));
+ }
+ if (WARN_ON(crypto_skcipher_ivsize(tfm) != mode->ivsize)) {
+ err = -EINVAL;
+ goto err_free_tfm;
+ }
+ crypto_skcipher_set_flags(tfm, CRYPTO_TFM_REQ_WEAK_KEY);
+ err = crypto_skcipher_setkey(tfm, raw_key, mode->keysize);
+ if (err)
+ goto err_free_tfm;
+
+ return tfm;
+
+err_free_tfm:
+ crypto_free_skcipher(tfm);
+ return ERR_PTR(err);
+}
+
+/*
+ * Prepare the crypto transform object or blk-crypto key in @prep_key, given the
+ * raw key, encryption mode, and flag indicating which encryption implementation
+ * (fs-layer or blk-crypto) will be used.
+ */
+int fscrypt_prepare_key(struct fscrypt_prepared_key *prep_key,
+ const u8 *raw_key, unsigned int raw_key_size,
+ bool is_hw_wrapped, const struct fscrypt_info *ci)
+{
+ struct crypto_skcipher *tfm;
+
+ if (fscrypt_using_inline_encryption(ci))
+ return fscrypt_prepare_inline_crypt_key(prep_key,
+ raw_key, raw_key_size, is_hw_wrapped, ci);
+
+ if (WARN_ON(is_hw_wrapped || raw_key_size != ci->ci_mode->keysize))
+ return -EINVAL;
+
+ tfm = fscrypt_allocate_skcipher(ci->ci_mode, raw_key, ci->ci_inode);
+ if (IS_ERR(tfm))
+ return PTR_ERR(tfm);
+ /*
+ * Pairs with the smp_load_acquire() in fscrypt_is_key_prepared().
+ * I.e., here we publish ->tfm with a RELEASE barrier so that
+ * concurrent tasks can ACQUIRE it. Note that this concurrency is only
+ * possible for per-mode keys, not for per-file keys.
+ */
+ smp_store_release(&prep_key->tfm, tfm);
+ return 0;
+}
+
+/* Destroy a crypto transform object and/or blk-crypto key. */
+void fscrypt_destroy_prepared_key(struct fscrypt_prepared_key *prep_key)
+{
+ crypto_free_skcipher(prep_key->tfm);
+ fscrypt_destroy_inline_crypt_key(prep_key);
+}
+
+/* Given a per-file encryption key, set up the file's crypto transform object */
+int fscrypt_set_per_file_enc_key(struct fscrypt_info *ci, const u8 *raw_key)
+{
+ ci->ci_owns_key = true;
+ return fscrypt_prepare_key(&ci->ci_key, raw_key, ci->ci_mode->keysize,
+ false /*is_hw_wrapped*/, ci);
+}
+
+static int setup_per_mode_enc_key(struct fscrypt_info *ci,
+ struct fscrypt_master_key *mk,
+ struct fscrypt_prepared_key *keys,
+ u8 hkdf_context, bool include_fs_uuid)
+{
+ const struct inode *inode = ci->ci_inode;
+ const struct super_block *sb = inode->i_sb;
+ struct fscrypt_mode *mode = ci->ci_mode;
+ const u8 mode_num = mode - fscrypt_modes;
+ struct fscrypt_prepared_key *prep_key;
+ u8 mode_key[FSCRYPT_MAX_KEY_SIZE];
+ u8 hkdf_info[sizeof(mode_num) + sizeof(sb->s_uuid)];
+ unsigned int hkdf_infolen = 0;
+ int err;
+
+ if (WARN_ON(mode_num > __FSCRYPT_MODE_MAX))
+ return -EINVAL;
+
+ prep_key = &keys[mode_num];
+ if (fscrypt_is_key_prepared(prep_key, ci)) {
+ ci->ci_key = *prep_key;
+ return 0;
+ }
+
+ mutex_lock(&fscrypt_mode_key_setup_mutex);
+
+ if (fscrypt_is_key_prepared(prep_key, ci))
+ goto done_unlock;
+
+ if (mk->mk_secret.is_hw_wrapped && S_ISREG(inode->i_mode)) {
+ int i;
+
+ if (!fscrypt_using_inline_encryption(ci)) {
+ fscrypt_warn(ci->ci_inode,
+ "Hardware-wrapped keys require inline encryption (-o inlinecrypt)");
+ err = -EINVAL;
+ goto out_unlock;
+ }
+ for (i = 0; i <= __FSCRYPT_MODE_MAX; i++) {
+ if (fscrypt_is_key_prepared(&keys[i], ci)) {
+ fscrypt_warn(ci->ci_inode,
+ "Each hardware-wrapped key can only be used with one encryption mode");
+ err = -EINVAL;
+ goto out_unlock;
+ }
+ }
+ err = fscrypt_prepare_key(prep_key, mk->mk_secret.raw,
+ mk->mk_secret.size, true, ci);
+ if (err)
+ goto out_unlock;
+ } else {
+ BUILD_BUG_ON(sizeof(mode_num) != 1);
+ BUILD_BUG_ON(sizeof(sb->s_uuid) != 16);
+ BUILD_BUG_ON(sizeof(hkdf_info) != 17);
+ hkdf_info[hkdf_infolen++] = mode_num;
+ if (include_fs_uuid) {
+ memcpy(&hkdf_info[hkdf_infolen], &sb->s_uuid,
+ sizeof(sb->s_uuid));
+ hkdf_infolen += sizeof(sb->s_uuid);
+ }
+ err = fscrypt_hkdf_expand(&mk->mk_secret.hkdf,
+ hkdf_context, hkdf_info, hkdf_infolen,
+ mode_key, mode->keysize);
+ if (err)
+ goto out_unlock;
+ err = fscrypt_prepare_key(prep_key, mode_key, mode->keysize,
+ false /*is_hw_wrapped*/, ci);
+ memzero_explicit(mode_key, mode->keysize);
+ if (err)
+ goto out_unlock;
+ }
+done_unlock:
+ ci->ci_key = *prep_key;
+
+ err = 0;
+out_unlock:
+ mutex_unlock(&fscrypt_mode_key_setup_mutex);
+ return err;
+}
+
+int fscrypt_derive_dirhash_key(struct fscrypt_info *ci,
+ const struct fscrypt_master_key *mk)
+{
+ int err;
+
+ err = fscrypt_hkdf_expand(&mk->mk_secret.hkdf, HKDF_CONTEXT_DIRHASH_KEY,
+ ci->ci_nonce, FS_KEY_DERIVATION_NONCE_SIZE,
+ (u8 *)&ci->ci_dirhash_key,
+ sizeof(ci->ci_dirhash_key));
+ if (err)
+ return err;
+ ci->ci_dirhash_key_initialized = true;
+ return 0;
+}
+
+static int fscrypt_setup_iv_ino_lblk_32_key(struct fscrypt_info *ci,
+ struct fscrypt_master_key *mk)
+{
+ int err;
+
+ err = setup_per_mode_enc_key(ci, mk, mk->mk_iv_ino_lblk_32_keys,
+ HKDF_CONTEXT_IV_INO_LBLK_32_KEY, true);
+ if (err)
+ return err;
+
+ /* pairs with smp_store_release() below */
+ if (!smp_load_acquire(&mk->mk_ino_hash_key_initialized)) {
+
+ mutex_lock(&fscrypt_mode_key_setup_mutex);
+
+ if (mk->mk_ino_hash_key_initialized)
+ goto unlock;
+
+ err = fscrypt_hkdf_expand(&mk->mk_secret.hkdf,
+ HKDF_CONTEXT_INODE_HASH_KEY, NULL, 0,
+ (u8 *)&mk->mk_ino_hash_key,
+ sizeof(mk->mk_ino_hash_key));
+ if (err)
+ goto unlock;
+ /* pairs with smp_load_acquire() above */
+ smp_store_release(&mk->mk_ino_hash_key_initialized, true);
+unlock:
+ mutex_unlock(&fscrypt_mode_key_setup_mutex);
+ if (err)
+ return err;
+ }
+
+ ci->ci_hashed_ino = (u32)siphash_1u64(ci->ci_inode->i_ino,
+ &mk->mk_ino_hash_key);
+ return 0;
+}
+
+static int fscrypt_setup_v2_file_key(struct fscrypt_info *ci,
+ struct fscrypt_master_key *mk)
+{
+ int err;
+
+ if (mk->mk_secret.is_hw_wrapped &&
+ !(ci->ci_policy.v2.flags & (FSCRYPT_POLICY_FLAG_IV_INO_LBLK_64 |
+ FSCRYPT_POLICY_FLAG_IV_INO_LBLK_32))) {
+ fscrypt_warn(ci->ci_inode,
+ "Hardware-wrapped keys are only supported with IV_INO_LBLK policies");
+ return -EINVAL;
+ }
+
+ if (ci->ci_policy.v2.flags & FSCRYPT_POLICY_FLAG_DIRECT_KEY) {
+ /*
+ * DIRECT_KEY: instead of deriving per-file encryption keys, the
+ * per-file nonce will be included in all the IVs. But unlike
+ * v1 policies, for v2 policies in this case we don't encrypt
+ * with the master key directly but rather derive a per-mode
+ * encryption key. This ensures that the master key is
+ * consistently used only for HKDF, avoiding key reuse issues.
+ */
+ err = setup_per_mode_enc_key(ci, mk, mk->mk_direct_keys,
+ HKDF_CONTEXT_DIRECT_KEY, false);
+ } else if (ci->ci_policy.v2.flags &
+ FSCRYPT_POLICY_FLAG_IV_INO_LBLK_64) {
+ /*
+ * IV_INO_LBLK_64: encryption keys are derived from (master_key,
+ * mode_num, filesystem_uuid), and inode number is included in
+ * the IVs. This format is optimized for use with inline
+ * encryption hardware compliant with the UFS standard.
+ */
+ err = setup_per_mode_enc_key(ci, mk, mk->mk_iv_ino_lblk_64_keys,
+ HKDF_CONTEXT_IV_INO_LBLK_64_KEY,
+ true);
+ } else if (ci->ci_policy.v2.flags &
+ FSCRYPT_POLICY_FLAG_IV_INO_LBLK_32) {
+ err = fscrypt_setup_iv_ino_lblk_32_key(ci, mk);
+ } else {
+ u8 derived_key[FSCRYPT_MAX_KEY_SIZE];
+
+ err = fscrypt_hkdf_expand(&mk->mk_secret.hkdf,
+ HKDF_CONTEXT_PER_FILE_ENC_KEY,
+ ci->ci_nonce,
+ FS_KEY_DERIVATION_NONCE_SIZE,
+ derived_key, ci->ci_mode->keysize);
+ if (err)
+ return err;
+
+ err = fscrypt_set_per_file_enc_key(ci, derived_key);
+ memzero_explicit(derived_key, ci->ci_mode->keysize);
+ }
+ if (err)
+ return err;
+
+ /* Derive a secret dirhash key for directories that need it. */
+ if (S_ISDIR(ci->ci_inode->i_mode) && IS_CASEFOLDED(ci->ci_inode)) {
+ err = fscrypt_derive_dirhash_key(ci, mk);
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
+
+/*
+ * Find the master key, then set up the inode's actual encryption key.
+ *
+ * If the master key is found in the filesystem-level keyring, then the
+ * corresponding 'struct key' is returned in *master_key_ret with
+ * ->mk_secret_sem read-locked. This is needed to ensure that only one task
+ * links the fscrypt_info into ->mk_decrypted_inodes (as multiple tasks may race
+ * to create an fscrypt_info for the same inode), and to synchronize the master
+ * key being removed with a new inode starting to use it.
+ */
+static int setup_file_encryption_key(struct fscrypt_info *ci,
+ struct key **master_key_ret)
+{
+ struct key *key;
+ struct fscrypt_master_key *mk = NULL;
+ struct fscrypt_key_specifier mk_spec;
+ int err;
+
+ switch (ci->ci_policy.version) {
+ case FSCRYPT_POLICY_V1:
+ mk_spec.type = FSCRYPT_KEY_SPEC_TYPE_DESCRIPTOR;
+ memcpy(mk_spec.u.descriptor,
+ ci->ci_policy.v1.master_key_descriptor,
+ FSCRYPT_KEY_DESCRIPTOR_SIZE);
+ break;
+ case FSCRYPT_POLICY_V2:
+ mk_spec.type = FSCRYPT_KEY_SPEC_TYPE_IDENTIFIER;
+ memcpy(mk_spec.u.identifier,
+ ci->ci_policy.v2.master_key_identifier,
+ FSCRYPT_KEY_IDENTIFIER_SIZE);
+ break;
+ default:
+ WARN_ON(1);
+ return -EINVAL;
+ }
+
+ key = fscrypt_find_master_key(ci->ci_inode->i_sb, &mk_spec);
+ if (IS_ERR(key)) {
+ if (key != ERR_PTR(-ENOKEY) ||
+ ci->ci_policy.version != FSCRYPT_POLICY_V1)
+ return PTR_ERR(key);
+
+ err = fscrypt_select_encryption_impl(ci, false);
+ if (err)
+ return err;
+
+ /*
+ * As a legacy fallback for v1 policies, search for the key in
+ * the current task's subscribed keyrings too. Don't move this
+ * to before the search of ->s_master_keys, since users
+ * shouldn't be able to override filesystem-level keys.
+ */
+ return fscrypt_setup_v1_file_key_via_subscribed_keyrings(ci);
+ }
+
+ mk = key->payload.data[0];
+ down_read(&mk->mk_secret_sem);
+
+ /* Has the secret been removed (via FS_IOC_REMOVE_ENCRYPTION_KEY)? */
+ if (!is_master_key_secret_present(&mk->mk_secret)) {
+ err = -ENOKEY;
+ goto out_release_key;
+ }
+
+ /*
+ * Require that the master key be at least as long as the derived key.
+ * Otherwise, the derived key cannot possibly contain as much entropy as
+ * that required by the encryption mode it will be used for. For v1
+ * policies it's also required for the KDF to work at all.
+ */
+ if (mk->mk_secret.size < ci->ci_mode->keysize) {
+ fscrypt_warn(NULL,
+ "key with %s %*phN is too short (got %u bytes, need %u+ bytes)",
+ master_key_spec_type(&mk_spec),
+ master_key_spec_len(&mk_spec), (u8 *)&mk_spec.u,
+ mk->mk_secret.size, ci->ci_mode->keysize);
+ err = -ENOKEY;
+ goto out_release_key;
+ }
+
+ err = fscrypt_select_encryption_impl(ci, mk->mk_secret.is_hw_wrapped);
+ if (err)
+ goto out_release_key;
+
+ switch (ci->ci_policy.version) {
+ case FSCRYPT_POLICY_V1:
+ err = fscrypt_setup_v1_file_key(ci, mk->mk_secret.raw);
+ break;
+ case FSCRYPT_POLICY_V2:
+ err = fscrypt_setup_v2_file_key(ci, mk);
+ break;
+ default:
+ WARN_ON(1);
+ err = -EINVAL;
+ break;
+ }
+ if (err)
+ goto out_release_key;
+
+ *master_key_ret = key;
+ return 0;
+
+out_release_key:
+ up_read(&mk->mk_secret_sem);
+ key_put(key);
+ return err;
+}
+
+static void put_crypt_info(struct fscrypt_info *ci)
+{
+ struct key *key;
+
+ if (!ci)
+ return;
+
+ if (ci->ci_direct_key)
+ fscrypt_put_direct_key(ci->ci_direct_key);
+ else if (ci->ci_owns_key)
+ fscrypt_destroy_prepared_key(&ci->ci_key);
+
+ key = ci->ci_master_key;
+ if (key) {
+ struct fscrypt_master_key *mk = key->payload.data[0];
+
+ /*
+ * Remove this inode from the list of inodes that were unlocked
+ * with the master key.
+ *
+ * In addition, if we're removing the last inode from a key that
+ * already had its secret removed, invalidate the key so that it
+ * gets removed from ->s_master_keys.
+ */
+ spin_lock(&mk->mk_decrypted_inodes_lock);
+ list_del(&ci->ci_master_key_link);
+ spin_unlock(&mk->mk_decrypted_inodes_lock);
+ if (refcount_dec_and_test(&mk->mk_refcount))
+ key_invalidate(key);
+ key_put(key);
+ }
+ memzero_explicit(ci, sizeof(*ci));
+ kmem_cache_free(fscrypt_info_cachep, ci);
+}
+
+int fscrypt_get_encryption_info(struct inode *inode)
+{
+ struct fscrypt_info *crypt_info;
+ union fscrypt_context ctx;
+ struct fscrypt_mode *mode;
+ struct key *master_key = NULL;
+ int res;
+
+ if (fscrypt_has_encryption_key(inode))
+ return 0;
+
+ res = fscrypt_initialize(inode->i_sb->s_cop->flags);
+ if (res)
+ return res;
+
+ res = inode->i_sb->s_cop->get_context(inode, &ctx, sizeof(ctx));
+ if (res < 0) {
+ const union fscrypt_context *dummy_ctx =
+ fscrypt_get_dummy_context(inode->i_sb);
+
+ if (IS_ENCRYPTED(inode) || !dummy_ctx) {
+ fscrypt_warn(inode,
+ "Error %d getting encryption context",
+ res);
+ return res;
+ }
+ /* Fake up a context for an unencrypted directory */
+ res = fscrypt_context_size(dummy_ctx);
+ memcpy(&ctx, dummy_ctx, res);
+ }
+
+ crypt_info = kmem_cache_zalloc(fscrypt_info_cachep, GFP_NOFS);
+ if (!crypt_info)
+ return -ENOMEM;
+
+ crypt_info->ci_inode = inode;
+
+ res = fscrypt_policy_from_context(&crypt_info->ci_policy, &ctx, res);
+ if (res) {
+ fscrypt_warn(inode,
+ "Unrecognized or corrupt encryption context");
+ goto out;
+ }
+
+ memcpy(crypt_info->ci_nonce, fscrypt_context_nonce(&ctx),
+ FS_KEY_DERIVATION_NONCE_SIZE);
+
+ if (!fscrypt_supported_policy(&crypt_info->ci_policy, inode)) {
+ res = -EINVAL;
+ goto out;
+ }
+
+ mode = select_encryption_mode(&crypt_info->ci_policy, inode);
+ if (IS_ERR(mode)) {
+ res = PTR_ERR(mode);
+ goto out;
+ }
+ WARN_ON(mode->ivsize > FSCRYPT_MAX_IV_SIZE);
+ crypt_info->ci_mode = mode;
+
+ res = setup_file_encryption_key(crypt_info, &master_key);
+ if (res)
+ goto out;
+
+ if (cmpxchg_release(&inode->i_crypt_info, NULL, crypt_info) == NULL) {
+ if (master_key) {
+ struct fscrypt_master_key *mk =
+ master_key->payload.data[0];
+
+ refcount_inc(&mk->mk_refcount);
+ crypt_info->ci_master_key = key_get(master_key);
+ spin_lock(&mk->mk_decrypted_inodes_lock);
+ list_add(&crypt_info->ci_master_key_link,
+ &mk->mk_decrypted_inodes);
+ spin_unlock(&mk->mk_decrypted_inodes_lock);
+ }
+ crypt_info = NULL;
+ }
+ res = 0;
+out:
+ if (master_key) {
+ struct fscrypt_master_key *mk = master_key->payload.data[0];
+
+ up_read(&mk->mk_secret_sem);
+ key_put(master_key);
+ }
+ if (res == -ENOKEY)
+ res = 0;
+ put_crypt_info(crypt_info);
+ return res;
+}
+EXPORT_SYMBOL(fscrypt_get_encryption_info);
+
+/**
+ * fscrypt_put_encryption_info() - free most of an inode's fscrypt data
+ * @inode: an inode being evicted
+ *
+ * Free the inode's fscrypt_info. Filesystems must call this when the inode is
+ * being evicted. An RCU grace period need not have elapsed yet.
+ */
+void fscrypt_put_encryption_info(struct inode *inode)
+{
+ put_crypt_info(inode->i_crypt_info);
+ inode->i_crypt_info = NULL;
+}
+EXPORT_SYMBOL(fscrypt_put_encryption_info);
+
+/**
+ * fscrypt_free_inode() - free an inode's fscrypt data requiring RCU delay
+ * @inode: an inode being freed
+ *
+ * Free the inode's cached decrypted symlink target, if any. Filesystems must
+ * call this after an RCU grace period, just before they free the inode.
+ */
+void fscrypt_free_inode(struct inode *inode)
+{
+ if (IS_ENCRYPTED(inode) && S_ISLNK(inode->i_mode)) {
+ kfree(inode->i_link);
+ inode->i_link = NULL;
+ }
+}
+EXPORT_SYMBOL(fscrypt_free_inode);
+
+/**
+ * fscrypt_drop_inode() - check whether the inode's master key has been removed
+ * @inode: an inode being considered for eviction
+ *
+ * Filesystems supporting fscrypt must call this from their ->drop_inode()
+ * method so that encrypted inodes are evicted as soon as they're no longer in
+ * use and their master key has been removed.
+ *
+ * Return: 1 if fscrypt wants the inode to be evicted now, otherwise 0
+ */
+int fscrypt_drop_inode(struct inode *inode)
+{
+ const struct fscrypt_info *ci = READ_ONCE(inode->i_crypt_info);
+ const struct fscrypt_master_key *mk;
+
+ /*
+ * If ci is NULL, then the inode doesn't have an encryption key set up
+ * so it's irrelevant. If ci_master_key is NULL, then the master key
+ * was provided via the legacy mechanism of the process-subscribed
+ * keyrings, so we don't know whether it's been removed or not.
+ */
+ if (!ci || !ci->ci_master_key)
+ return 0;
+ mk = ci->ci_master_key->payload.data[0];
+
+ /*
+ * With proper, non-racy use of FS_IOC_REMOVE_ENCRYPTION_KEY, all inodes
+ * protected by the key were cleaned by sync_filesystem(). But if
+ * userspace is still using the files, inodes can be dirtied between
+ * then and now. We mustn't lose any writes, so skip dirty inodes here.
+ */
+ if (inode->i_state & I_DIRTY_ALL)
+ return 0;
+
+ /*
+ * Note: since we aren't holding ->mk_secret_sem, the result here can
+ * immediately become outdated. But there's no correctness problem with
+ * unnecessarily evicting. Nor is there a correctness problem with not
+ * evicting while iput() is racing with the key being removed, since
+ * then the thread removing the key will either evict the inode itself
+ * or will correctly detect that it wasn't evicted due to the race.
+ */
+ return !is_master_key_secret_present(&mk->mk_secret);
+}
+EXPORT_SYMBOL_GPL(fscrypt_drop_inode);
diff --git a/fs/crypto/keysetup_v1.c b/fs/crypto/keysetup_v1.c
new file mode 100644
index 0000000..3f7bb48
--- /dev/null
+++ b/fs/crypto/keysetup_v1.c
@@ -0,0 +1,320 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Key setup for v1 encryption policies
+ *
+ * Copyright 2015, 2019 Google LLC
+ */
+
+/*
+ * This file implements compatibility functions for the original encryption
+ * policy version ("v1"), including:
+ *
+ * - Deriving per-file encryption keys using the AES-128-ECB based KDF
+ * (rather than the new method of using HKDF-SHA512)
+ *
+ * - Retrieving fscrypt master keys from process-subscribed keyrings
+ * (rather than the new method of using a filesystem-level keyring)
+ *
+ * - Handling policies with the DIRECT_KEY flag set using a master key table
+ * (rather than the new method of implementing DIRECT_KEY with per-mode keys
+ * managed alongside the master keys in the filesystem-level keyring)
+ */
+
+#include <crypto/algapi.h>
+#include <crypto/skcipher.h>
+#include <keys/user-type.h>
+#include <linux/hashtable.h>
+#include <linux/scatterlist.h>
+
+#include "fscrypt_private.h"
+
+/* Table of keys referenced by DIRECT_KEY policies */
+static DEFINE_HASHTABLE(fscrypt_direct_keys, 6); /* 6 bits = 64 buckets */
+static DEFINE_SPINLOCK(fscrypt_direct_keys_lock);
+
+/*
+ * v1 key derivation function. This generates the derived key by encrypting the
+ * master key with AES-128-ECB using the nonce as the AES key. This provides a
+ * unique derived key with sufficient entropy for each inode. However, it's
+ * nonstandard, non-extensible, doesn't evenly distribute the entropy from the
+ * master key, and is trivially reversible: an attacker who compromises a
+ * derived key can "decrypt" it to get back to the master key, then derive any
+ * other key. For all new code, use HKDF instead.
+ *
+ * The master key must be at least as long as the derived key. If the master
+ * key is longer, then only the first 'derived_keysize' bytes are used.
+ */
+static int derive_key_aes(const u8 *master_key,
+ const u8 nonce[FS_KEY_DERIVATION_NONCE_SIZE],
+ u8 *derived_key, unsigned int derived_keysize)
+{
+ int res = 0;
+ struct skcipher_request *req = NULL;
+ DECLARE_CRYPTO_WAIT(wait);
+ struct scatterlist src_sg, dst_sg;
+ struct crypto_skcipher *tfm = crypto_alloc_skcipher("ecb(aes)", 0, 0);
+
+ if (IS_ERR(tfm)) {
+ res = PTR_ERR(tfm);
+ tfm = NULL;
+ goto out;
+ }
+ crypto_skcipher_set_flags(tfm, CRYPTO_TFM_REQ_WEAK_KEY);
+ req = skcipher_request_alloc(tfm, GFP_NOFS);
+ if (!req) {
+ res = -ENOMEM;
+ goto out;
+ }
+ skcipher_request_set_callback(req,
+ CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP,
+ crypto_req_done, &wait);
+ res = crypto_skcipher_setkey(tfm, nonce, FS_KEY_DERIVATION_NONCE_SIZE);
+ if (res < 0)
+ goto out;
+
+ sg_init_one(&src_sg, master_key, derived_keysize);
+ sg_init_one(&dst_sg, derived_key, derived_keysize);
+ skcipher_request_set_crypt(req, &src_sg, &dst_sg, derived_keysize,
+ NULL);
+ res = crypto_wait_req(crypto_skcipher_encrypt(req), &wait);
+out:
+ skcipher_request_free(req);
+ crypto_free_skcipher(tfm);
+ return res;
+}
+
+/*
+ * Search the current task's subscribed keyrings for a "logon" key with
+ * description prefix:descriptor, and if found acquire a read lock on it and
+ * return a pointer to its validated payload in *payload_ret.
+ */
+static struct key *
+find_and_lock_process_key(const char *prefix,
+ const u8 descriptor[FSCRYPT_KEY_DESCRIPTOR_SIZE],
+ unsigned int min_keysize,
+ const struct fscrypt_key **payload_ret)
+{
+ char *description;
+ struct key *key;
+ const struct user_key_payload *ukp;
+ const struct fscrypt_key *payload;
+
+ description = kasprintf(GFP_NOFS, "%s%*phN", prefix,
+ FSCRYPT_KEY_DESCRIPTOR_SIZE, descriptor);
+ if (!description)
+ return ERR_PTR(-ENOMEM);
+
+ key = request_key(&key_type_logon, description, NULL);
+ kfree(description);
+ if (IS_ERR(key))
+ return key;
+
+ down_read(&key->sem);
+ ukp = user_key_payload_locked(key);
+
+ if (!ukp) /* was the key revoked before we acquired its semaphore? */
+ goto invalid;
+
+ payload = (const struct fscrypt_key *)ukp->data;
+
+ if (ukp->datalen != sizeof(struct fscrypt_key) ||
+ payload->size < 1 || payload->size > FSCRYPT_MAX_KEY_SIZE) {
+ fscrypt_warn(NULL,
+ "key with description '%s' has invalid payload",
+ key->description);
+ goto invalid;
+ }
+
+ if (payload->size < min_keysize) {
+ fscrypt_warn(NULL,
+ "key with description '%s' is too short (got %u bytes, need %u+ bytes)",
+ key->description, payload->size, min_keysize);
+ goto invalid;
+ }
+
+ *payload_ret = payload;
+ return key;
+
+invalid:
+ up_read(&key->sem);
+ key_put(key);
+ return ERR_PTR(-ENOKEY);
+}
+
+/* Master key referenced by DIRECT_KEY policy */
+struct fscrypt_direct_key {
+ struct hlist_node dk_node;
+ refcount_t dk_refcount;
+ const struct fscrypt_mode *dk_mode;
+ struct fscrypt_prepared_key dk_key;
+ u8 dk_descriptor[FSCRYPT_KEY_DESCRIPTOR_SIZE];
+ u8 dk_raw[FSCRYPT_MAX_KEY_SIZE];
+};
+
+static void free_direct_key(struct fscrypt_direct_key *dk)
+{
+ if (dk) {
+ fscrypt_destroy_prepared_key(&dk->dk_key);
+ kzfree(dk);
+ }
+}
+
+void fscrypt_put_direct_key(struct fscrypt_direct_key *dk)
+{
+ if (!refcount_dec_and_lock(&dk->dk_refcount, &fscrypt_direct_keys_lock))
+ return;
+ hash_del(&dk->dk_node);
+ spin_unlock(&fscrypt_direct_keys_lock);
+
+ free_direct_key(dk);
+}
+
+/*
+ * Find/insert the given key into the fscrypt_direct_keys table. If found, it
+ * is returned with elevated refcount, and 'to_insert' is freed if non-NULL. If
+ * not found, 'to_insert' is inserted and returned if it's non-NULL; otherwise
+ * NULL is returned.
+ */
+static struct fscrypt_direct_key *
+find_or_insert_direct_key(struct fscrypt_direct_key *to_insert,
+ const u8 *raw_key, const struct fscrypt_info *ci)
+{
+ unsigned long hash_key;
+ struct fscrypt_direct_key *dk;
+
+ /*
+ * Careful: to avoid potentially leaking secret key bytes via timing
+ * information, we must key the hash table by descriptor rather than by
+ * raw key, and use crypto_memneq() when comparing raw keys.
+ */
+
+ BUILD_BUG_ON(sizeof(hash_key) > FSCRYPT_KEY_DESCRIPTOR_SIZE);
+ memcpy(&hash_key, ci->ci_policy.v1.master_key_descriptor,
+ sizeof(hash_key));
+
+ spin_lock(&fscrypt_direct_keys_lock);
+ hash_for_each_possible(fscrypt_direct_keys, dk, dk_node, hash_key) {
+ if (memcmp(ci->ci_policy.v1.master_key_descriptor,
+ dk->dk_descriptor, FSCRYPT_KEY_DESCRIPTOR_SIZE) != 0)
+ continue;
+ if (ci->ci_mode != dk->dk_mode)
+ continue;
+ if (!fscrypt_is_key_prepared(&dk->dk_key, ci))
+ continue;
+ if (crypto_memneq(raw_key, dk->dk_raw, ci->ci_mode->keysize))
+ continue;
+ /* using existing tfm with same (descriptor, mode, raw_key) */
+ refcount_inc(&dk->dk_refcount);
+ spin_unlock(&fscrypt_direct_keys_lock);
+ free_direct_key(to_insert);
+ return dk;
+ }
+ if (to_insert)
+ hash_add(fscrypt_direct_keys, &to_insert->dk_node, hash_key);
+ spin_unlock(&fscrypt_direct_keys_lock);
+ return to_insert;
+}
+
+/* Prepare to encrypt directly using the master key in the given mode */
+static struct fscrypt_direct_key *
+fscrypt_get_direct_key(const struct fscrypt_info *ci, const u8 *raw_key)
+{
+ struct fscrypt_direct_key *dk;
+ int err;
+
+ /* Is there already a tfm for this key? */
+ dk = find_or_insert_direct_key(NULL, raw_key, ci);
+ if (dk)
+ return dk;
+
+ /* Nope, allocate one. */
+ dk = kzalloc(sizeof(*dk), GFP_NOFS);
+ if (!dk)
+ return ERR_PTR(-ENOMEM);
+ refcount_set(&dk->dk_refcount, 1);
+ dk->dk_mode = ci->ci_mode;
+ err = fscrypt_prepare_key(&dk->dk_key, raw_key, ci->ci_mode->keysize,
+ false /*is_hw_wrapped*/, ci);
+ if (err)
+ goto err_free_dk;
+ memcpy(dk->dk_descriptor, ci->ci_policy.v1.master_key_descriptor,
+ FSCRYPT_KEY_DESCRIPTOR_SIZE);
+ memcpy(dk->dk_raw, raw_key, ci->ci_mode->keysize);
+
+ return find_or_insert_direct_key(dk, raw_key, ci);
+
+err_free_dk:
+ free_direct_key(dk);
+ return ERR_PTR(err);
+}
+
+/* v1 policy, DIRECT_KEY: use the master key directly */
+static int setup_v1_file_key_direct(struct fscrypt_info *ci,
+ const u8 *raw_master_key)
+{
+ struct fscrypt_direct_key *dk;
+
+ dk = fscrypt_get_direct_key(ci, raw_master_key);
+ if (IS_ERR(dk))
+ return PTR_ERR(dk);
+ ci->ci_direct_key = dk;
+ ci->ci_key = dk->dk_key;
+ return 0;
+}
+
+/* v1 policy, !DIRECT_KEY: derive the file's encryption key */
+static int setup_v1_file_key_derived(struct fscrypt_info *ci,
+ const u8 *raw_master_key)
+{
+ u8 *derived_key;
+ int err;
+
+ /*
+ * This cannot be a stack buffer because it will be passed to the
+ * scatterlist crypto API during derive_key_aes().
+ */
+ derived_key = kmalloc(ci->ci_mode->keysize, GFP_NOFS);
+ if (!derived_key)
+ return -ENOMEM;
+
+ err = derive_key_aes(raw_master_key, ci->ci_nonce,
+ derived_key, ci->ci_mode->keysize);
+ if (err)
+ goto out;
+
+ err = fscrypt_set_per_file_enc_key(ci, derived_key);
+out:
+ kzfree(derived_key);
+ return err;
+}
+
+int fscrypt_setup_v1_file_key(struct fscrypt_info *ci, const u8 *raw_master_key)
+{
+ if (ci->ci_policy.v1.flags & FSCRYPT_POLICY_FLAG_DIRECT_KEY)
+ return setup_v1_file_key_direct(ci, raw_master_key);
+ else
+ return setup_v1_file_key_derived(ci, raw_master_key);
+}
+
+int fscrypt_setup_v1_file_key_via_subscribed_keyrings(struct fscrypt_info *ci)
+{
+ struct key *key;
+ const struct fscrypt_key *payload;
+ int err;
+
+ key = find_and_lock_process_key(FSCRYPT_KEY_DESC_PREFIX,
+ ci->ci_policy.v1.master_key_descriptor,
+ ci->ci_mode->keysize, &payload);
+ if (key == ERR_PTR(-ENOKEY) && ci->ci_inode->i_sb->s_cop->key_prefix) {
+ key = find_and_lock_process_key(ci->ci_inode->i_sb->s_cop->key_prefix,
+ ci->ci_policy.v1.master_key_descriptor,
+ ci->ci_mode->keysize, &payload);
+ }
+ if (IS_ERR(key))
+ return PTR_ERR(key);
+
+ err = fscrypt_setup_v1_file_key(ci, payload->raw);
+ up_read(&key->sem);
+ key_put(key);
+ return err;
+}
diff --git a/fs/crypto/policy.c b/fs/crypto/policy.c
index e9d975f..026dbb2 100644
--- a/fs/crypto/policy.c
+++ b/fs/crypto/policy.c
@@ -5,79 +5,462 @@
* Copyright (C) 2015, Google, Inc.
* Copyright (C) 2015, Motorola Mobility.
*
- * Written by Michael Halcrow, 2015.
+ * Originally written by Michael Halcrow, 2015.
* Modified by Jaegeuk Kim, 2015.
+ * Modified by Eric Biggers, 2019 for v2 policy support.
*/
#include <linux/random.h>
+#include <linux/seq_file.h>
#include <linux/string.h>
#include <linux/mount.h>
#include "fscrypt_private.h"
-/*
- * check whether an encryption policy is consistent with an encryption context
+/**
+ * fscrypt_policies_equal() - check whether two encryption policies are the same
+ * @policy1: the first policy
+ * @policy2: the second policy
+ *
+ * Return: %true if equal, else %false
*/
-static bool is_encryption_context_consistent_with_policy(
- const struct fscrypt_context *ctx,
- const struct fscrypt_policy *policy)
+bool fscrypt_policies_equal(const union fscrypt_policy *policy1,
+ const union fscrypt_policy *policy2)
{
- return memcmp(ctx->master_key_descriptor, policy->master_key_descriptor,
- FS_KEY_DESCRIPTOR_SIZE) == 0 &&
- (ctx->flags == policy->flags) &&
- (ctx->contents_encryption_mode ==
- policy->contents_encryption_mode) &&
- (ctx->filenames_encryption_mode ==
- policy->filenames_encryption_mode);
+ if (policy1->version != policy2->version)
+ return false;
+
+ return !memcmp(policy1, policy2, fscrypt_policy_size(policy1));
}
-static int create_encryption_context_from_policy(struct inode *inode,
- const struct fscrypt_policy *policy)
+static bool fscrypt_valid_enc_modes(u32 contents_mode, u32 filenames_mode)
{
- struct fscrypt_context ctx;
+ if (contents_mode == FSCRYPT_MODE_AES_256_XTS &&
+ filenames_mode == FSCRYPT_MODE_AES_256_CTS)
+ return true;
- ctx.format = FS_ENCRYPTION_CONTEXT_FORMAT_V1;
- memcpy(ctx.master_key_descriptor, policy->master_key_descriptor,
- FS_KEY_DESCRIPTOR_SIZE);
+ if (contents_mode == FSCRYPT_MODE_AES_128_CBC &&
+ filenames_mode == FSCRYPT_MODE_AES_128_CTS)
+ return true;
+
+ if (contents_mode == FSCRYPT_MODE_ADIANTUM &&
+ filenames_mode == FSCRYPT_MODE_ADIANTUM)
+ return true;
+
+ return false;
+}
+
+static bool supported_direct_key_modes(const struct inode *inode,
+ u32 contents_mode, u32 filenames_mode)
+{
+ const struct fscrypt_mode *mode;
+
+ if (contents_mode != filenames_mode) {
+ fscrypt_warn(inode,
+ "Direct key flag not allowed with different contents and filenames modes");
+ return false;
+ }
+ mode = &fscrypt_modes[contents_mode];
+
+ if (mode->ivsize < offsetofend(union fscrypt_iv, nonce)) {
+ fscrypt_warn(inode, "Direct key flag not allowed with %s",
+ mode->friendly_name);
+ return false;
+ }
+ return true;
+}
+
+static bool supported_iv_ino_lblk_policy(const struct fscrypt_policy_v2 *policy,
+ const struct inode *inode,
+ const char *type,
+ int max_ino_bits, int max_lblk_bits)
+{
+ struct super_block *sb = inode->i_sb;
+ int ino_bits = 64, lblk_bits = 64;
+
+ /*
+ * IV_INO_LBLK_* exist only because of hardware limitations, and
+ * currently the only known use case for them involves AES-256-XTS.
+ * That's also all we test currently. For these reasons, for now only
+ * allow AES-256-XTS here. This can be relaxed later if a use case for
+ * IV_INO_LBLK_* with other encryption modes arises.
+ */
+ if (policy->contents_encryption_mode != FSCRYPT_MODE_AES_256_XTS) {
+ fscrypt_warn(inode,
+ "Can't use %s policy with contents mode other than AES-256-XTS",
+ type);
+ return false;
+ }
+
+ /*
+ * It's unsafe to include inode numbers in the IVs if the filesystem can
+ * potentially renumber inodes, e.g. via filesystem shrinking.
+ */
+ if (!sb->s_cop->has_stable_inodes ||
+ !sb->s_cop->has_stable_inodes(sb)) {
+ fscrypt_warn(inode,
+ "Can't use %s policy on filesystem '%s' because it doesn't have stable inode numbers",
+ type, sb->s_id);
+ return false;
+ }
+ if (sb->s_cop->get_ino_and_lblk_bits)
+ sb->s_cop->get_ino_and_lblk_bits(sb, &ino_bits, &lblk_bits);
+ if (ino_bits > max_ino_bits) {
+ fscrypt_warn(inode,
+ "Can't use %s policy on filesystem '%s' because its inode numbers are too long",
+ type, sb->s_id);
+ return false;
+ }
+ if (lblk_bits > max_lblk_bits) {
+ fscrypt_warn(inode,
+ "Can't use %s policy on filesystem '%s' because its block numbers are too long",
+ type, sb->s_id);
+ return false;
+ }
+ return true;
+}
+
+static bool fscrypt_supported_v1_policy(const struct fscrypt_policy_v1 *policy,
+ const struct inode *inode)
+{
+ if (!fscrypt_valid_enc_modes(policy->contents_encryption_mode,
+ policy->filenames_encryption_mode)) {
+ fscrypt_warn(inode,
+ "Unsupported encryption modes (contents %d, filenames %d)",
+ policy->contents_encryption_mode,
+ policy->filenames_encryption_mode);
+ return false;
+ }
+
+ if (policy->flags & ~(FSCRYPT_POLICY_FLAGS_PAD_MASK |
+ FSCRYPT_POLICY_FLAG_DIRECT_KEY)) {
+ fscrypt_warn(inode, "Unsupported encryption flags (0x%02x)",
+ policy->flags);
+ return false;
+ }
+
+ if ((policy->flags & FSCRYPT_POLICY_FLAG_DIRECT_KEY) &&
+ !supported_direct_key_modes(inode, policy->contents_encryption_mode,
+ policy->filenames_encryption_mode))
+ return false;
+
+ if (IS_CASEFOLDED(inode)) {
+ /* With v1, there's no way to derive dirhash keys. */
+ fscrypt_warn(inode,
+ "v1 policies can't be used on casefolded directories");
+ return false;
+ }
+
+ return true;
+}
+
+static bool fscrypt_supported_v2_policy(const struct fscrypt_policy_v2 *policy,
+ const struct inode *inode)
+{
+ int count = 0;
if (!fscrypt_valid_enc_modes(policy->contents_encryption_mode,
- policy->filenames_encryption_mode))
+ policy->filenames_encryption_mode)) {
+ fscrypt_warn(inode,
+ "Unsupported encryption modes (contents %d, filenames %d)",
+ policy->contents_encryption_mode,
+ policy->filenames_encryption_mode);
+ return false;
+ }
+
+ if (policy->flags & ~FSCRYPT_POLICY_FLAGS_VALID) {
+ fscrypt_warn(inode, "Unsupported encryption flags (0x%02x)",
+ policy->flags);
+ return false;
+ }
+
+ count += !!(policy->flags & FSCRYPT_POLICY_FLAG_DIRECT_KEY);
+ count += !!(policy->flags & FSCRYPT_POLICY_FLAG_IV_INO_LBLK_64);
+ count += !!(policy->flags & FSCRYPT_POLICY_FLAG_IV_INO_LBLK_32);
+ if (count > 1) {
+ fscrypt_warn(inode, "Mutually exclusive encryption flags (0x%02x)",
+ policy->flags);
+ return false;
+ }
+
+ if ((policy->flags & FSCRYPT_POLICY_FLAG_DIRECT_KEY) &&
+ !supported_direct_key_modes(inode, policy->contents_encryption_mode,
+ policy->filenames_encryption_mode))
+ return false;
+
+ if ((policy->flags & FSCRYPT_POLICY_FLAG_IV_INO_LBLK_64) &&
+ !supported_iv_ino_lblk_policy(policy, inode, "IV_INO_LBLK_64",
+ 32, 32))
+ return false;
+
+ /*
+ * IV_INO_LBLK_32 hashes the inode number, so in principle it can
+ * support any ino_bits. However, currently the inode number is gotten
+ * from inode::i_ino which is 'unsigned long'. So for now the
+ * implementation limit is 32 bits.
+ */
+ if ((policy->flags & FSCRYPT_POLICY_FLAG_IV_INO_LBLK_32) &&
+ !supported_iv_ino_lblk_policy(policy, inode, "IV_INO_LBLK_32",
+ 32, 32))
+ return false;
+
+ if (memchr_inv(policy->__reserved, 0, sizeof(policy->__reserved))) {
+ fscrypt_warn(inode, "Reserved bits set in encryption policy");
+ return false;
+ }
+
+ return true;
+}
+
+/**
+ * fscrypt_supported_policy() - check whether an encryption policy is supported
+ * @policy_u: the encryption policy
+ * @inode: the inode on which the policy will be used
+ *
+ * Given an encryption policy, check whether all its encryption modes and other
+ * settings are supported by this kernel on the given inode. (But we don't
+ * currently don't check for crypto API support here, so attempting to use an
+ * algorithm not configured into the crypto API will still fail later.)
+ *
+ * Return: %true if supported, else %false
+ */
+bool fscrypt_supported_policy(const union fscrypt_policy *policy_u,
+ const struct inode *inode)
+{
+ switch (policy_u->version) {
+ case FSCRYPT_POLICY_V1:
+ return fscrypt_supported_v1_policy(&policy_u->v1, inode);
+ case FSCRYPT_POLICY_V2:
+ return fscrypt_supported_v2_policy(&policy_u->v2, inode);
+ }
+ return false;
+}
+
+/**
+ * fscrypt_new_context_from_policy() - create a new fscrypt_context from
+ * an fscrypt_policy
+ * @ctx_u: output context
+ * @policy_u: input policy
+ *
+ * Create an fscrypt_context for an inode that is being assigned the given
+ * encryption policy. A new nonce is randomly generated.
+ *
+ * Return: the size of the new context in bytes.
+ */
+static int fscrypt_new_context_from_policy(union fscrypt_context *ctx_u,
+ const union fscrypt_policy *policy_u)
+{
+ memset(ctx_u, 0, sizeof(*ctx_u));
+
+ switch (policy_u->version) {
+ case FSCRYPT_POLICY_V1: {
+ const struct fscrypt_policy_v1 *policy = &policy_u->v1;
+ struct fscrypt_context_v1 *ctx = &ctx_u->v1;
+
+ ctx->version = FSCRYPT_CONTEXT_V1;
+ ctx->contents_encryption_mode =
+ policy->contents_encryption_mode;
+ ctx->filenames_encryption_mode =
+ policy->filenames_encryption_mode;
+ ctx->flags = policy->flags;
+ memcpy(ctx->master_key_descriptor,
+ policy->master_key_descriptor,
+ sizeof(ctx->master_key_descriptor));
+ get_random_bytes(ctx->nonce, sizeof(ctx->nonce));
+ return sizeof(*ctx);
+ }
+ case FSCRYPT_POLICY_V2: {
+ const struct fscrypt_policy_v2 *policy = &policy_u->v2;
+ struct fscrypt_context_v2 *ctx = &ctx_u->v2;
+
+ ctx->version = FSCRYPT_CONTEXT_V2;
+ ctx->contents_encryption_mode =
+ policy->contents_encryption_mode;
+ ctx->filenames_encryption_mode =
+ policy->filenames_encryption_mode;
+ ctx->flags = policy->flags;
+ memcpy(ctx->master_key_identifier,
+ policy->master_key_identifier,
+ sizeof(ctx->master_key_identifier));
+ get_random_bytes(ctx->nonce, sizeof(ctx->nonce));
+ return sizeof(*ctx);
+ }
+ }
+ BUG();
+}
+
+/**
+ * fscrypt_policy_from_context() - convert an fscrypt_context to
+ * an fscrypt_policy
+ * @policy_u: output policy
+ * @ctx_u: input context
+ * @ctx_size: size of input context in bytes
+ *
+ * Given an fscrypt_context, build the corresponding fscrypt_policy.
+ *
+ * Return: 0 on success, or -EINVAL if the fscrypt_context has an unrecognized
+ * version number or size.
+ *
+ * This does *not* validate the settings within the policy itself, e.g. the
+ * modes, flags, and reserved bits. Use fscrypt_supported_policy() for that.
+ */
+int fscrypt_policy_from_context(union fscrypt_policy *policy_u,
+ const union fscrypt_context *ctx_u,
+ int ctx_size)
+{
+ memset(policy_u, 0, sizeof(*policy_u));
+
+ if (!fscrypt_context_is_valid(ctx_u, ctx_size))
return -EINVAL;
- if (policy->flags & ~FS_POLICY_FLAGS_VALID)
+ switch (ctx_u->version) {
+ case FSCRYPT_CONTEXT_V1: {
+ const struct fscrypt_context_v1 *ctx = &ctx_u->v1;
+ struct fscrypt_policy_v1 *policy = &policy_u->v1;
+
+ policy->version = FSCRYPT_POLICY_V1;
+ policy->contents_encryption_mode =
+ ctx->contents_encryption_mode;
+ policy->filenames_encryption_mode =
+ ctx->filenames_encryption_mode;
+ policy->flags = ctx->flags;
+ memcpy(policy->master_key_descriptor,
+ ctx->master_key_descriptor,
+ sizeof(policy->master_key_descriptor));
+ return 0;
+ }
+ case FSCRYPT_CONTEXT_V2: {
+ const struct fscrypt_context_v2 *ctx = &ctx_u->v2;
+ struct fscrypt_policy_v2 *policy = &policy_u->v2;
+
+ policy->version = FSCRYPT_POLICY_V2;
+ policy->contents_encryption_mode =
+ ctx->contents_encryption_mode;
+ policy->filenames_encryption_mode =
+ ctx->filenames_encryption_mode;
+ policy->flags = ctx->flags;
+ memcpy(policy->__reserved, ctx->__reserved,
+ sizeof(policy->__reserved));
+ memcpy(policy->master_key_identifier,
+ ctx->master_key_identifier,
+ sizeof(policy->master_key_identifier));
+ return 0;
+ }
+ }
+ /* unreachable */
+ return -EINVAL;
+}
+
+/* Retrieve an inode's encryption policy */
+static int fscrypt_get_policy(struct inode *inode, union fscrypt_policy *policy)
+{
+ const struct fscrypt_info *ci;
+ union fscrypt_context ctx;
+ int ret;
+
+ ci = READ_ONCE(inode->i_crypt_info);
+ if (ci) {
+ /* key available, use the cached policy */
+ *policy = ci->ci_policy;
+ return 0;
+ }
+
+ if (!IS_ENCRYPTED(inode))
+ return -ENODATA;
+
+ ret = inode->i_sb->s_cop->get_context(inode, &ctx, sizeof(ctx));
+ if (ret < 0)
+ return (ret == -ERANGE) ? -EINVAL : ret;
+
+ return fscrypt_policy_from_context(policy, &ctx, ret);
+}
+
+static int set_encryption_policy(struct inode *inode,
+ const union fscrypt_policy *policy)
+{
+ union fscrypt_context ctx;
+ int ctxsize;
+ int err;
+
+ if (!fscrypt_supported_policy(policy, inode))
return -EINVAL;
- ctx.contents_encryption_mode = policy->contents_encryption_mode;
- ctx.filenames_encryption_mode = policy->filenames_encryption_mode;
- ctx.flags = policy->flags;
- BUILD_BUG_ON(sizeof(ctx.nonce) != FS_KEY_DERIVATION_NONCE_SIZE);
- get_random_bytes(ctx.nonce, FS_KEY_DERIVATION_NONCE_SIZE);
+ switch (policy->version) {
+ case FSCRYPT_POLICY_V1:
+ /*
+ * The original encryption policy version provided no way of
+ * verifying that the correct master key was supplied, which was
+ * insecure in scenarios where multiple users have access to the
+ * same encrypted files (even just read-only access). The new
+ * encryption policy version fixes this and also implies use of
+ * an improved key derivation function and allows non-root users
+ * to securely remove keys. So as long as compatibility with
+ * old kernels isn't required, it is recommended to use the new
+ * policy version for all new encrypted directories.
+ */
+ pr_warn_once("%s (pid %d) is setting deprecated v1 encryption policy; recommend upgrading to v2.\n",
+ current->comm, current->pid);
+ break;
+ case FSCRYPT_POLICY_V2:
+ err = fscrypt_verify_key_added(inode->i_sb,
+ policy->v2.master_key_identifier);
+ if (err)
+ return err;
+ if (policy->v2.flags & FSCRYPT_POLICY_FLAG_IV_INO_LBLK_32)
+ pr_warn_once("%s (pid %d) is setting an IV_INO_LBLK_32 encryption policy. This should only be used if there are certain hardware limitations.\n",
+ current->comm, current->pid);
+ break;
+ default:
+ WARN_ON(1);
+ return -EINVAL;
+ }
- return inode->i_sb->s_cop->set_context(inode, &ctx, sizeof(ctx), NULL);
+ ctxsize = fscrypt_new_context_from_policy(&ctx, policy);
+
+ return inode->i_sb->s_cop->set_context(inode, &ctx, ctxsize, NULL);
}
int fscrypt_ioctl_set_policy(struct file *filp, const void __user *arg)
{
- struct fscrypt_policy policy;
+ union fscrypt_policy policy;
+ union fscrypt_policy existing_policy;
struct inode *inode = file_inode(filp);
+ u8 version;
+ int size;
int ret;
- struct fscrypt_context ctx;
- if (copy_from_user(&policy, arg, sizeof(policy)))
+ if (get_user(policy.version, (const u8 __user *)arg))
return -EFAULT;
+ size = fscrypt_policy_size(&policy);
+ if (size <= 0)
+ return -EINVAL;
+
+ /*
+ * We should just copy the remaining 'size - 1' bytes here, but a
+ * bizarre bug in gcc 7 and earlier (fixed by gcc r255731) causes gcc to
+ * think that size can be 0 here (despite the check above!) *and* that
+ * it's a compile-time constant. Thus it would think copy_from_user()
+ * is passed compile-time constant ULONG_MAX, causing the compile-time
+ * buffer overflow check to fail, breaking the build. This only occurred
+ * when building an i386 kernel with -Os and branch profiling enabled.
+ *
+ * Work around it by just copying the first byte again...
+ */
+ version = policy.version;
+ if (copy_from_user(&policy, arg, size))
+ return -EFAULT;
+ policy.version = version;
+
if (!inode_owner_or_capable(inode))
return -EACCES;
- if (policy.version != 0)
- return -EINVAL;
-
ret = mnt_want_write_file(filp);
if (ret)
return ret;
inode_lock(inode);
- ret = inode->i_sb->s_cop->get_context(inode, &ctx, sizeof(ctx));
+ ret = fscrypt_get_policy(inode, &existing_policy);
if (ret == -ENODATA) {
if (!S_ISDIR(inode->i_mode))
ret = -ENOTDIR;
@@ -86,14 +469,10 @@ int fscrypt_ioctl_set_policy(struct file *filp, const void __user *arg)
else if (!inode->i_sb->s_cop->empty_dir(inode))
ret = -ENOTEMPTY;
else
- ret = create_encryption_context_from_policy(inode,
- &policy);
- } else if (ret == sizeof(ctx) &&
- is_encryption_context_consistent_with_policy(&ctx,
- &policy)) {
- /* The file already uses the same encryption policy. */
- ret = 0;
- } else if (ret >= 0 || ret == -ERANGE) {
+ ret = set_encryption_policy(inode, &policy);
+ } else if (ret == -EINVAL ||
+ (ret == 0 && !fscrypt_policies_equal(&policy,
+ &existing_policy))) {
/* The file already uses a different encryption policy. */
ret = -EEXIST;
}
@@ -105,37 +484,76 @@ int fscrypt_ioctl_set_policy(struct file *filp, const void __user *arg)
}
EXPORT_SYMBOL(fscrypt_ioctl_set_policy);
+/* Original ioctl version; can only get the original policy version */
int fscrypt_ioctl_get_policy(struct file *filp, void __user *arg)
{
- struct inode *inode = file_inode(filp);
- struct fscrypt_context ctx;
- struct fscrypt_policy policy;
- int res;
+ union fscrypt_policy policy;
+ int err;
- if (!IS_ENCRYPTED(inode))
- return -ENODATA;
+ err = fscrypt_get_policy(file_inode(filp), &policy);
+ if (err)
+ return err;
- res = inode->i_sb->s_cop->get_context(inode, &ctx, sizeof(ctx));
- if (res < 0 && res != -ERANGE)
- return res;
- if (res != sizeof(ctx))
- return -EINVAL;
- if (ctx.format != FS_ENCRYPTION_CONTEXT_FORMAT_V1)
+ if (policy.version != FSCRYPT_POLICY_V1)
return -EINVAL;
- policy.version = 0;
- policy.contents_encryption_mode = ctx.contents_encryption_mode;
- policy.filenames_encryption_mode = ctx.filenames_encryption_mode;
- policy.flags = ctx.flags;
- memcpy(policy.master_key_descriptor, ctx.master_key_descriptor,
- FS_KEY_DESCRIPTOR_SIZE);
-
- if (copy_to_user(arg, &policy, sizeof(policy)))
+ if (copy_to_user(arg, &policy, sizeof(policy.v1)))
return -EFAULT;
return 0;
}
EXPORT_SYMBOL(fscrypt_ioctl_get_policy);
+/* Extended ioctl version; can get policies of any version */
+int fscrypt_ioctl_get_policy_ex(struct file *filp, void __user *uarg)
+{
+ struct fscrypt_get_policy_ex_arg arg;
+ union fscrypt_policy *policy = (union fscrypt_policy *)&arg.policy;
+ size_t policy_size;
+ int err;
+
+ /* arg is policy_size, then policy */
+ BUILD_BUG_ON(offsetof(typeof(arg), policy_size) != 0);
+ BUILD_BUG_ON(offsetofend(typeof(arg), policy_size) !=
+ offsetof(typeof(arg), policy));
+ BUILD_BUG_ON(sizeof(arg.policy) != sizeof(*policy));
+
+ err = fscrypt_get_policy(file_inode(filp), policy);
+ if (err)
+ return err;
+ policy_size = fscrypt_policy_size(policy);
+
+ if (copy_from_user(&arg, uarg, sizeof(arg.policy_size)))
+ return -EFAULT;
+
+ if (policy_size > arg.policy_size)
+ return -EOVERFLOW;
+ arg.policy_size = policy_size;
+
+ if (copy_to_user(uarg, &arg, sizeof(arg.policy_size) + policy_size))
+ return -EFAULT;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(fscrypt_ioctl_get_policy_ex);
+
+/* FS_IOC_GET_ENCRYPTION_NONCE: retrieve file's encryption nonce for testing */
+int fscrypt_ioctl_get_nonce(struct file *filp, void __user *arg)
+{
+ struct inode *inode = file_inode(filp);
+ union fscrypt_context ctx;
+ int ret;
+
+ ret = inode->i_sb->s_cop->get_context(inode, &ctx, sizeof(ctx));
+ if (ret < 0)
+ return ret;
+ if (!fscrypt_context_is_valid(&ctx, ret))
+ return -EINVAL;
+ if (copy_to_user(arg, fscrypt_context_nonce(&ctx),
+ FS_KEY_DERIVATION_NONCE_SIZE))
+ return -EFAULT;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(fscrypt_ioctl_get_nonce);
+
/**
* fscrypt_has_permitted_context() - is a file's encryption policy permitted
* within its directory?
@@ -157,10 +575,8 @@ EXPORT_SYMBOL(fscrypt_ioctl_get_policy);
*/
int fscrypt_has_permitted_context(struct inode *parent, struct inode *child)
{
- const struct fscrypt_operations *cops = parent->i_sb->s_cop;
- const struct fscrypt_info *parent_ci, *child_ci;
- struct fscrypt_context parent_ctx, child_ctx;
- int res;
+ union fscrypt_policy parent_policy, child_policy;
+ int err;
/* No restrictions on file types which are never encrypted */
if (!S_ISREG(child->i_mode) && !S_ISDIR(child->i_mode) &&
@@ -190,40 +606,22 @@ int fscrypt_has_permitted_context(struct inode *parent, struct inode *child)
* In any case, if an unexpected error occurs, fall back to "forbidden".
*/
- res = fscrypt_get_encryption_info(parent);
- if (res)
+ err = fscrypt_get_encryption_info(parent);
+ if (err)
return 0;
- res = fscrypt_get_encryption_info(child);
- if (res)
- return 0;
- parent_ci = parent->i_crypt_info;
- child_ci = child->i_crypt_info;
-
- if (parent_ci && child_ci) {
- return memcmp(parent_ci->ci_master_key, child_ci->ci_master_key,
- FS_KEY_DESCRIPTOR_SIZE) == 0 &&
- (parent_ci->ci_data_mode == child_ci->ci_data_mode) &&
- (parent_ci->ci_filename_mode ==
- child_ci->ci_filename_mode) &&
- (parent_ci->ci_flags == child_ci->ci_flags);
- }
-
- res = cops->get_context(parent, &parent_ctx, sizeof(parent_ctx));
- if (res != sizeof(parent_ctx))
+ err = fscrypt_get_encryption_info(child);
+ if (err)
return 0;
- res = cops->get_context(child, &child_ctx, sizeof(child_ctx));
- if (res != sizeof(child_ctx))
+ err = fscrypt_get_policy(parent, &parent_policy);
+ if (err)
return 0;
- return memcmp(parent_ctx.master_key_descriptor,
- child_ctx.master_key_descriptor,
- FS_KEY_DESCRIPTOR_SIZE) == 0 &&
- (parent_ctx.contents_encryption_mode ==
- child_ctx.contents_encryption_mode) &&
- (parent_ctx.filenames_encryption_mode ==
- child_ctx.filenames_encryption_mode) &&
- (parent_ctx.flags == child_ctx.flags);
+ err = fscrypt_get_policy(child, &child_policy);
+ if (err)
+ return 0;
+
+ return fscrypt_policies_equal(&parent_policy, &child_policy);
}
EXPORT_SYMBOL(fscrypt_has_permitted_context);
@@ -239,7 +637,8 @@ EXPORT_SYMBOL(fscrypt_has_permitted_context);
int fscrypt_inherit_context(struct inode *parent, struct inode *child,
void *fs_data, bool preload)
{
- struct fscrypt_context ctx;
+ union fscrypt_context ctx;
+ int ctxsize;
struct fscrypt_info *ci;
int res;
@@ -247,22 +646,140 @@ int fscrypt_inherit_context(struct inode *parent, struct inode *child,
if (res < 0)
return res;
- ci = parent->i_crypt_info;
+ ci = READ_ONCE(parent->i_crypt_info);
if (ci == NULL)
return -ENOKEY;
- ctx.format = FS_ENCRYPTION_CONTEXT_FORMAT_V1;
- ctx.contents_encryption_mode = ci->ci_data_mode;
- ctx.filenames_encryption_mode = ci->ci_filename_mode;
- ctx.flags = ci->ci_flags;
- memcpy(ctx.master_key_descriptor, ci->ci_master_key,
- FS_KEY_DESCRIPTOR_SIZE);
- get_random_bytes(ctx.nonce, FS_KEY_DERIVATION_NONCE_SIZE);
+ ctxsize = fscrypt_new_context_from_policy(&ctx, &ci->ci_policy);
+
BUILD_BUG_ON(sizeof(ctx) != FSCRYPT_SET_CONTEXT_MAX_SIZE);
- res = parent->i_sb->s_cop->set_context(child, &ctx,
- sizeof(ctx), fs_data);
+ res = parent->i_sb->s_cop->set_context(child, &ctx, ctxsize, fs_data);
if (res)
return res;
return preload ? fscrypt_get_encryption_info(child): 0;
}
EXPORT_SYMBOL(fscrypt_inherit_context);
+
+/**
+ * fscrypt_set_test_dummy_encryption() - handle '-o test_dummy_encryption'
+ * @sb: the filesystem on which test_dummy_encryption is being specified
+ * @arg: the argument to the test_dummy_encryption option.
+ * If no argument was specified, then @arg->from == NULL.
+ * @dummy_ctx: the filesystem's current dummy context (input/output, see below)
+ *
+ * Handle the test_dummy_encryption mount option by creating a dummy encryption
+ * context, saving it in @dummy_ctx, and adding the corresponding dummy
+ * encryption key to the filesystem. If the @dummy_ctx is already set, then
+ * instead validate that it matches @arg. Don't support changing it via
+ * remount, as that is difficult to do safely.
+ *
+ * The reason we use an fscrypt_context rather than an fscrypt_policy is because
+ * we mustn't generate a new nonce each time we access a dummy-encrypted
+ * directory, as that would change the way filenames are encrypted.
+ *
+ * Return: 0 on success (dummy context set, or the same context is already set);
+ * -EEXIST if a different dummy context is already set;
+ * or another -errno value.
+ */
+int fscrypt_set_test_dummy_encryption(struct super_block *sb,
+ const substring_t *arg,
+ struct fscrypt_dummy_context *dummy_ctx)
+{
+ const char *argstr = "v2";
+ const char *argstr_to_free = NULL;
+ struct fscrypt_key_specifier key_spec = { 0 };
+ int version;
+ union fscrypt_context *ctx = NULL;
+ int err;
+
+ if (arg->from) {
+ argstr = argstr_to_free = match_strdup(arg);
+ if (!argstr)
+ return -ENOMEM;
+ }
+
+ if (!strcmp(argstr, "v1")) {
+ version = FSCRYPT_CONTEXT_V1;
+ key_spec.type = FSCRYPT_KEY_SPEC_TYPE_DESCRIPTOR;
+ memset(key_spec.u.descriptor, 0x42,
+ FSCRYPT_KEY_DESCRIPTOR_SIZE);
+ } else if (!strcmp(argstr, "v2")) {
+ version = FSCRYPT_CONTEXT_V2;
+ key_spec.type = FSCRYPT_KEY_SPEC_TYPE_IDENTIFIER;
+ /* key_spec.u.identifier gets filled in when adding the key */
+ } else {
+ err = -EINVAL;
+ goto out;
+ }
+
+ if (dummy_ctx->ctx) {
+ /*
+ * Note: if we ever make test_dummy_encryption support
+ * specifying other encryption settings, such as the encryption
+ * modes, we'll need to compare those settings here.
+ */
+ if (dummy_ctx->ctx->version == version)
+ err = 0;
+ else
+ err = -EEXIST;
+ goto out;
+ }
+
+ ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+ if (!ctx) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ err = fscrypt_add_test_dummy_key(sb, &key_spec);
+ if (err)
+ goto out;
+
+ ctx->version = version;
+ switch (ctx->version) {
+ case FSCRYPT_CONTEXT_V1:
+ ctx->v1.contents_encryption_mode = FSCRYPT_MODE_AES_256_XTS;
+ ctx->v1.filenames_encryption_mode = FSCRYPT_MODE_AES_256_CTS;
+ memcpy(ctx->v1.master_key_descriptor, key_spec.u.descriptor,
+ FSCRYPT_KEY_DESCRIPTOR_SIZE);
+ break;
+ case FSCRYPT_CONTEXT_V2:
+ ctx->v2.contents_encryption_mode = FSCRYPT_MODE_AES_256_XTS;
+ ctx->v2.filenames_encryption_mode = FSCRYPT_MODE_AES_256_CTS;
+ memcpy(ctx->v2.master_key_identifier, key_spec.u.identifier,
+ FSCRYPT_KEY_IDENTIFIER_SIZE);
+ break;
+ default:
+ WARN_ON(1);
+ err = -EINVAL;
+ goto out;
+ }
+ dummy_ctx->ctx = ctx;
+ ctx = NULL;
+ err = 0;
+out:
+ kfree(ctx);
+ kfree(argstr_to_free);
+ return err;
+}
+EXPORT_SYMBOL_GPL(fscrypt_set_test_dummy_encryption);
+
+/**
+ * fscrypt_show_test_dummy_encryption() - show '-o test_dummy_encryption'
+ * @seq: the seq_file to print the option to
+ * @sep: the separator character to use
+ * @sb: the filesystem whose options are being shown
+ *
+ * Show the test_dummy_encryption mount option, if it was specified.
+ * This is mainly used for /proc/mounts.
+ */
+void fscrypt_show_test_dummy_encryption(struct seq_file *seq, char sep,
+ struct super_block *sb)
+{
+ const union fscrypt_context *ctx = fscrypt_get_dummy_context(sb);
+
+ if (!ctx)
+ return;
+ seq_printf(seq, "%ctest_dummy_encryption=v%d", sep, ctx->version);
+}
+EXPORT_SYMBOL_GPL(fscrypt_show_test_dummy_encryption);
diff --git a/fs/dcache.c b/fs/dcache.c
index 1897833..d3553ca 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -18,6 +18,7 @@
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/fs.h>
+#include <linux/fscrypt.h>
#include <linux/fsnotify.h>
#include <linux/slab.h>
#include <linux/init.h>
@@ -257,24 +258,10 @@ static void __d_free(struct rcu_head *head)
kmem_cache_free(dentry_cache, dentry);
}
-static void __d_free_external_name(struct rcu_head *head)
-{
- struct external_name *name = container_of(head, struct external_name,
- u.head);
-
- mod_node_page_state(page_pgdat(virt_to_page(name)),
- NR_INDIRECTLY_RECLAIMABLE_BYTES,
- -ksize(name));
-
- kfree(name);
-}
-
static void __d_free_external(struct rcu_head *head)
{
struct dentry *dentry = container_of(head, struct dentry, d_u.d_rcu);
-
- __d_free_external_name(&external_name(dentry)->u.head);
-
+ kfree(external_name(dentry));
kmem_cache_free(dentry_cache, dentry);
}
@@ -306,7 +293,7 @@ void release_dentry_name_snapshot(struct name_snapshot *name)
struct external_name *p;
p = container_of(name->name, struct external_name, name[0]);
if (unlikely(atomic_dec_and_test(&p->u.count)))
- call_rcu(&p->u.head, __d_free_external_name);
+ kfree_rcu(p, u.head);
}
}
EXPORT_SYMBOL(release_dentry_name_snapshot);
@@ -1604,7 +1591,6 @@ EXPORT_SYMBOL(d_invalidate);
struct dentry *__d_alloc(struct super_block *sb, const struct qstr *name)
{
- struct external_name *ext = NULL;
struct dentry *dentry;
char *dname;
int err;
@@ -1625,14 +1611,15 @@ struct dentry *__d_alloc(struct super_block *sb, const struct qstr *name)
dname = dentry->d_iname;
} else if (name->len > DNAME_INLINE_LEN-1) {
size_t size = offsetof(struct external_name, name[1]);
-
- ext = kmalloc(size + name->len, GFP_KERNEL_ACCOUNT);
- if (!ext) {
+ struct external_name *p = kmalloc(size + name->len,
+ GFP_KERNEL_ACCOUNT |
+ __GFP_RECLAIMABLE);
+ if (!p) {
kmem_cache_free(dentry_cache, dentry);
return NULL;
}
- atomic_set(&ext->u.count, 1);
- dname = ext->name;
+ atomic_set(&p->u.count, 1);
+ dname = p->name;
} else {
dname = dentry->d_iname;
}
@@ -1671,12 +1658,6 @@ struct dentry *__d_alloc(struct super_block *sb, const struct qstr *name)
}
}
- if (unlikely(ext)) {
- pg_data_t *pgdat = page_pgdat(virt_to_page(ext));
- mod_node_page_state(pgdat, NR_INDIRECTLY_RECLAIMABLE_BYTES,
- ksize(ext));
- }
-
this_cpu_inc(nr_dentry);
return dentry;
@@ -2709,21 +2690,7 @@ static void copy_name(struct dentry *dentry, struct dentry *target)
dentry->d_name.hash_len = target->d_name.hash_len;
}
if (old_name && likely(atomic_dec_and_test(&old_name->u.count)))
- call_rcu(&old_name->u.head, __d_free_external_name);
-}
-
-/*
- * When d_splice_alias() moves a directory's encrypted alias to its decrypted
- * alias as a result of the encryption key being added, DCACHE_ENCRYPTED_NAME
- * must be cleared. Note that we don't have to support arbitrary moves of this
- * flag because fscrypt doesn't allow encrypted aliases to be the source or
- * target of a rename().
- */
-static inline void fscrypt_handle_d_move(struct dentry *dentry)
-{
-#if IS_ENABLED(CONFIG_FS_ENCRYPTION)
- dentry->d_flags &= ~DCACHE_ENCRYPTED_NAME;
-#endif
+ kfree_rcu(old_name, u.head);
}
/*
diff --git a/fs/direct-io.c b/fs/direct-io.c
index ec7c7d1..bc3a2bf 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -23,6 +23,7 @@
#include <linux/module.h>
#include <linux/types.h>
#include <linux/fs.h>
+#include <linux/fscrypt.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/highmem.h>
@@ -430,6 +431,7 @@ dio_bio_alloc(struct dio *dio, struct dio_submit *sdio,
sector_t first_sector, int nr_vecs)
{
struct bio *bio;
+ struct inode *inode = dio->inode;
/*
* bio_alloc() is guaranteed to return a bio when allowed to sleep and
@@ -437,6 +439,9 @@ dio_bio_alloc(struct dio *dio, struct dio_submit *sdio,
*/
bio = bio_alloc(GFP_KERNEL, nr_vecs);
+ fscrypt_set_bio_crypt_ctx(bio, inode,
+ sdio->cur_page_fs_offset >> inode->i_blkbits,
+ GFP_KERNEL);
bio_set_dev(bio, bdev);
bio->bi_iter.bi_sector = first_sector;
bio_set_op_attrs(bio, dio->op, dio->op_flags);
@@ -809,9 +814,17 @@ static inline int dio_send_cur_page(struct dio *dio, struct dio_submit *sdio,
* current logical offset in the file does not equal what would
* be the next logical offset in the bio, submit the bio we
* have.
+ *
+ * When fscrypt inline encryption is used, data unit number
+ * (DUN) contiguity is also required. Normally that's implied
+ * by logical contiguity. However, certain IV generation
+ * methods (e.g. IV_INO_LBLK_32) don't guarantee it. So, we
+ * must explicitly check fscrypt_mergeable_bio() too.
*/
if (sdio->final_block_in_bio != sdio->cur_page_block ||
- cur_offset != bio_next_offset)
+ cur_offset != bio_next_offset ||
+ !fscrypt_mergeable_bio(sdio->bio, dio->inode,
+ cur_offset >> dio->inode->i_blkbits))
dio_bio_submit(dio, sdio);
}
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index a4a32b7..9a81b56 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -34,6 +34,7 @@
#include <linux/mutex.h>
#include <linux/anon_inodes.h>
#include <linux/device.h>
+#include <linux/freezer.h>
#include <linux/uaccess.h>
#include <asm/io.h>
#include <asm/mman.h>
@@ -1380,13 +1381,13 @@ static int ep_create_wakeup_source(struct epitem *epi)
struct wakeup_source *ws;
if (!epi->ep->ws) {
- epi->ep->ws = wakeup_source_register("eventpoll");
+ epi->ep->ws = wakeup_source_register(NULL, "eventpoll");
if (!epi->ep->ws)
return -ENOMEM;
}
take_dentry_name_snapshot(&n, epi->ffd.file->f_path.dentry);
- ws = wakeup_source_register(n.name);
+ ws = wakeup_source_register(NULL, n.name);
release_dentry_name_snapshot(&n);
if (!ws)
@@ -1814,7 +1815,8 @@ static int ep_poll(struct eventpoll *ep, struct epoll_event __user *events,
}
spin_unlock_irq(&ep->wq.lock);
- if (!schedule_hrtimeout_range(to, slack, HRTIMER_MODE_ABS))
+ if (!freezable_schedule_hrtimeout_range(to, slack,
+ HRTIMER_MODE_ABS))
timed_out = 1;
spin_lock_irq(&ep->wq.lock);
diff --git a/fs/ext4/Kconfig b/fs/ext4/Kconfig
index a453cc8..8d8c031 100644
--- a/fs/ext4/Kconfig
+++ b/fs/ext4/Kconfig
@@ -38,6 +38,7 @@
select CRYPTO
select CRYPTO_CRC32C
select FS_IOMAP
+ select FS_ENCRYPTION_ALGS if FS_ENCRYPTION
help
This is the next generation of the ext3 filesystem.
@@ -101,10 +102,9 @@
depends on EXT4_FS
select FS_ENCRYPTION
help
- Enable encryption of ext4 files and directories. This
- feature is similar to ecryptfs, but it is more memory
- efficient since it avoids caching the encrypted and
- decrypted pages in the page cache.
+ This kconfig symbol is deprecated; now it just selects
+ FS_ENCRYPTION. Use CONFIG_FS_ENCRYPTION=y in new config
+ files
config EXT4_FS_ENCRYPTION
bool
diff --git a/fs/ext4/Makefile b/fs/ext4/Makefile
index 8fdfcd3..b17ddc2 100644
--- a/fs/ext4/Makefile
+++ b/fs/ext4/Makefile
@@ -13,3 +13,4 @@
ext4-$(CONFIG_EXT4_FS_POSIX_ACL) += acl.o
ext4-$(CONFIG_EXT4_FS_SECURITY) += xattr_security.o
+ext4-$(CONFIG_FS_VERITY) += verity.o
diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c
index ae520a7..e499f85 100644
--- a/fs/ext4/dir.c
+++ b/fs/ext4/dir.c
@@ -26,9 +26,12 @@
#include <linux/buffer_head.h>
#include <linux/slab.h>
#include <linux/iversion.h>
+#include <linux/unicode.h>
#include "ext4.h"
#include "xattr.h"
+#define DOTDOT_OFFSET 12
+
static int ext4_dx_readdir(struct file *, struct dir_context *);
/**
@@ -51,6 +54,19 @@ static int is_dx_dir(struct inode *inode)
return 0;
}
+static bool is_fake_entry(struct inode *dir, ext4_lblk_t lblk,
+ unsigned int offset, unsigned int blocksize)
+{
+ /* Entries in the first block before this value refer to . or .. */
+ if (lblk == 0 && offset <= DOTDOT_OFFSET)
+ return true;
+ /* Check if this is likely the csum entry */
+ if (ext4_has_metadata_csum(dir->i_sb) && offset % blocksize ==
+ blocksize - sizeof(struct ext4_dir_entry_tail))
+ return true;
+ return false;
+}
+
/*
* Return 0 if the directory entry is OK, and 1 if there is a problem
*
@@ -63,25 +79,30 @@ int __ext4_check_dir_entry(const char *function, unsigned int line,
struct inode *dir, struct file *filp,
struct ext4_dir_entry_2 *de,
struct buffer_head *bh, char *buf, int size,
+ ext4_lblk_t lblk,
unsigned int offset)
{
const char *error_msg = NULL;
const int rlen = ext4_rec_len_from_disk(de->rec_len,
dir->i_sb->s_blocksize);
+ const int next_offset = ((char *) de - buf) + rlen;
+ unsigned int blocksize = dir->i_sb->s_blocksize;
+ bool fake = is_fake_entry(dir, lblk, offset, blocksize);
+ bool next_fake = is_fake_entry(dir, lblk, next_offset, blocksize);
- if (unlikely(rlen < EXT4_DIR_REC_LEN(1)))
+ if (unlikely(rlen < ext4_dir_rec_len(1, fake ? NULL : dir)))
error_msg = "rec_len is smaller than minimal";
else if (unlikely(rlen % 4 != 0))
error_msg = "rec_len % 4 != 0";
- else if (unlikely(rlen < EXT4_DIR_REC_LEN(de->name_len)))
+ else if (unlikely(rlen < ext4_dir_rec_len(de->name_len,
+ fake ? NULL : dir)))
error_msg = "rec_len is too small for name_len";
else if (unlikely(((char *) de - buf) + rlen > size))
error_msg = "directory entry overrun";
- else if (unlikely(((char *) de - buf) + rlen >
- size - EXT4_DIR_REC_LEN(1) &&
- ((char *) de - buf) + rlen != size)) {
+ else if (unlikely(next_offset > size - ext4_dir_rec_len(1,
+ next_fake ? NULL : dir) &&
+ next_offset != size))
error_msg = "directory entry too close to block end";
- }
else if (unlikely(le32_to_cpu(de->inode) >
le32_to_cpu(EXT4_SB(dir->i_sb)->s_es->s_inodes_count)))
error_msg = "inode out of bounds";
@@ -91,15 +112,15 @@ int __ext4_check_dir_entry(const char *function, unsigned int line,
if (filp)
ext4_error_file(filp, function, line, bh->b_blocknr,
"bad entry in directory: %s - offset=%u, "
- "inode=%u, rec_len=%d, name_len=%d, size=%d",
+ "inode=%u, rec_len=%d, lblk=%d, size=%d fake=%d",
error_msg, offset, le32_to_cpu(de->inode),
- rlen, de->name_len, size);
+ rlen, lblk, size, fake);
else
ext4_error_inode(dir, function, line, bh->b_blocknr,
"bad entry in directory: %s - offset=%u, "
- "inode=%u, rec_len=%d, name_len=%d, size=%d",
+ "inode=%u, rec_len=%d, lblk=%d, size=%d fake=%d",
error_msg, offset, le32_to_cpu(de->inode),
- rlen, de->name_len, size);
+ rlen, lblk, size, fake);
return 1;
}
@@ -115,9 +136,9 @@ static int ext4_readdir(struct file *file, struct dir_context *ctx)
struct buffer_head *bh = NULL;
struct fscrypt_str fstr = FSTR_INIT(NULL, 0);
- if (ext4_encrypted_inode(inode)) {
+ if (IS_ENCRYPTED(inode)) {
err = fscrypt_get_encryption_info(inode);
- if (err && err != -ENOKEY)
+ if (err)
return err;
}
@@ -144,7 +165,7 @@ static int ext4_readdir(struct file *file, struct dir_context *ctx)
return err;
}
- if (ext4_encrypted_inode(inode)) {
+ if (IS_ENCRYPTED(inode)) {
err = fscrypt_fname_alloc_buffer(inode, EXT4_NAME_LEN, &fstr);
if (err < 0)
return err;
@@ -224,7 +245,8 @@ static int ext4_readdir(struct file *file, struct dir_context *ctx)
* failure will be detected in the
* dirent test below. */
if (ext4_rec_len_from_disk(de->rec_len,
- sb->s_blocksize) < EXT4_DIR_REC_LEN(1))
+ sb->s_blocksize) < ext4_dir_rec_len(1,
+ inode))
break;
i += ext4_rec_len_from_disk(de->rec_len,
sb->s_blocksize);
@@ -240,7 +262,7 @@ static int ext4_readdir(struct file *file, struct dir_context *ctx)
de = (struct ext4_dir_entry_2 *) (bh->b_data + offset);
if (ext4_check_dir_entry(inode, file, de, bh,
bh->b_data, bh->b_size,
- offset)) {
+ map.m_lblk, offset)) {
/*
* On error, skip to the next block
*/
@@ -251,7 +273,7 @@ static int ext4_readdir(struct file *file, struct dir_context *ctx)
offset += ext4_rec_len_from_disk(de->rec_len,
sb->s_blocksize);
if (le32_to_cpu(de->inode)) {
- if (!ext4_encrypted_inode(inode)) {
+ if (!IS_ENCRYPTED(inode)) {
if (!dir_emit(ctx, de->name,
de->name_len,
le32_to_cpu(de->inode),
@@ -265,7 +287,9 @@ static int ext4_readdir(struct file *file, struct dir_context *ctx)
/* Directory is encrypted */
err = fscrypt_fname_disk_to_usr(inode,
- 0, 0, &de_name, &fstr);
+ EXT4_DIRENT_HASH(de),
+ EXT4_DIRENT_MINOR_HASH(de),
+ &de_name, &fstr);
de_name = fstr;
fstr.len = save_len;
if (err)
@@ -289,9 +313,7 @@ static int ext4_readdir(struct file *file, struct dir_context *ctx)
done:
err = 0;
errout:
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
fscrypt_fname_free_buffer(&fstr);
-#endif
brelse(bh);
return err;
}
@@ -619,7 +641,7 @@ static int ext4_dx_readdir(struct file *file, struct dir_context *ctx)
static int ext4_dir_open(struct inode * inode, struct file * filp)
{
- if (ext4_encrypted_inode(inode))
+ if (IS_ENCRYPTED(inode))
return fscrypt_get_encryption_info(inode) ? -EACCES : 0;
return 0;
}
@@ -644,7 +666,7 @@ int ext4_check_all_de(struct inode *dir, struct buffer_head *bh, void *buf,
top = buf + buf_size;
while ((char *) de < top) {
if (ext4_check_dir_entry(dir, NULL, de, bh,
- buf, buf_size, offset))
+ buf, buf_size, 0, offset))
return -EFSCORRUPTED;
rlen = ext4_rec_len_from_disk(de->rec_len, buf_size);
de = (struct ext4_dir_entry_2 *)((char *)de + rlen);
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 6938dff..8268d07 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -40,8 +40,8 @@
#include <linux/compat.h>
#endif
-#define __FS_HAS_ENCRYPTION IS_ENABLED(CONFIG_EXT4_FS_ENCRYPTION)
#include <linux/fscrypt.h>
+#include <linux/fsverity.h>
#include <linux/compiler.h>
@@ -413,14 +413,16 @@ struct flex_groups {
#define EXT4_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/
#define EXT4_HUGE_FILE_FL 0x00040000 /* Set to each huge file */
#define EXT4_EXTENTS_FL 0x00080000 /* Inode uses extents */
+#define EXT4_VERITY_FL 0x00100000 /* Verity protected inode */
#define EXT4_EA_INODE_FL 0x00200000 /* Inode used for large EA */
#define EXT4_EOFBLOCKS_FL 0x00400000 /* Blocks allocated beyond EOF */
#define EXT4_INLINE_DATA_FL 0x10000000 /* Inode has inline data. */
#define EXT4_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
+#define EXT4_CASEFOLD_FL 0x40000000 /* Casefolded file */
#define EXT4_RESERVED_FL 0x80000000 /* reserved for ext4 lib */
-#define EXT4_FL_USER_VISIBLE 0x304BDFFF /* User visible flags */
-#define EXT4_FL_USER_MODIFIABLE 0x204BC0FF /* User modifiable flags */
+#define EXT4_FL_USER_VISIBLE 0x705BDFFF /* User visible flags */
+#define EXT4_FL_USER_MODIFIABLE 0x604BC0FF /* User modifiable flags */
/* Flags we can manipulate with through EXT4_IOC_FSSETXATTR */
#define EXT4_FL_XFLAG_VISIBLE (EXT4_SYNC_FL | \
@@ -435,10 +437,10 @@ struct flex_groups {
EXT4_SYNC_FL | EXT4_NODUMP_FL | EXT4_NOATIME_FL |\
EXT4_NOCOMPR_FL | EXT4_JOURNAL_DATA_FL |\
EXT4_NOTAIL_FL | EXT4_DIRSYNC_FL |\
- EXT4_PROJINHERIT_FL)
+ EXT4_PROJINHERIT_FL | EXT4_CASEFOLD_FL)
/* Flags that are appropriate for regular files (all but dir-specific ones). */
-#define EXT4_REG_FLMASK (~(EXT4_DIRSYNC_FL | EXT4_TOPDIR_FL))
+#define EXT4_REG_FLMASK (~(EXT4_DIRSYNC_FL | EXT4_TOPDIR_FL | EXT4_CASEFOLD_FL))
/* Flags that are appropriate for non-directories/regular files. */
#define EXT4_OTHER_FLMASK (EXT4_NODUMP_FL | EXT4_NOATIME_FL)
@@ -483,6 +485,7 @@ enum {
EXT4_INODE_TOPDIR = 17, /* Top of directory hierarchies*/
EXT4_INODE_HUGE_FILE = 18, /* Set to each huge file */
EXT4_INODE_EXTENTS = 19, /* Inode uses extents */
+ EXT4_INODE_VERITY = 20, /* Verity protected inode */
EXT4_INODE_EA_INODE = 21, /* Inode used for large EA */
EXT4_INODE_EOFBLOCKS = 22, /* Blocks allocated beyond EOF */
EXT4_INODE_INLINE_DATA = 28, /* Data in inode. */
@@ -528,6 +531,7 @@ static inline void ext4_check_flag_values(void)
CHECK_FLAG_VALUE(TOPDIR);
CHECK_FLAG_VALUE(HUGE_FILE);
CHECK_FLAG_VALUE(EXTENTS);
+ CHECK_FLAG_VALUE(VERITY);
CHECK_FLAG_VALUE(EA_INODE);
CHECK_FLAG_VALUE(EOFBLOCKS);
CHECK_FLAG_VALUE(INLINE_DATA);
@@ -1136,6 +1140,7 @@ struct ext4_inode_info {
#define EXT4_MOUNT_JOURNAL_CHECKSUM 0x800000 /* Journal checksums */
#define EXT4_MOUNT_JOURNAL_ASYNC_COMMIT 0x1000000 /* Journal Async Commit */
#define EXT4_MOUNT_WARN_ON_ERROR 0x2000000 /* Trigger WARN_ON on error */
+#define EXT4_MOUNT_INLINECRYPT 0x4000000 /* Inline encryption support */
#define EXT4_MOUNT_DELALLOC 0x8000000 /* Delalloc support */
#define EXT4_MOUNT_DATA_ERR_ABORT 0x10000000 /* Abort on file data write */
#define EXT4_MOUNT_BLOCK_VALIDITY 0x20000000 /* Block validity checking */
@@ -1327,7 +1332,9 @@ struct ext4_super_block {
__u8 s_first_error_time_hi;
__u8 s_last_error_time_hi;
__u8 s_pad[2];
- __le32 s_reserved[96]; /* Padding to the end of the block */
+ __le16 s_encoding; /* Filename charset encoding */
+ __le16 s_encoding_flags; /* Filename charset encoding flags */
+ __le32 s_reserved[95]; /* Padding to the end of the block */
__le32 s_checksum; /* crc32c(superblock) */
};
@@ -1340,11 +1347,9 @@ struct ext4_super_block {
*/
#define EXT4_MF_MNTDIR_SAMPLED 0x0001
#define EXT4_MF_FS_ABORTED 0x0002 /* Fatal error detected */
-#define EXT4_MF_TEST_DUMMY_ENCRYPTION 0x0004
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
-#define DUMMY_ENCRYPTION_ENABLED(sbi) (unlikely((sbi)->s_mount_flags & \
- EXT4_MF_TEST_DUMMY_ENCRYPTION))
+#ifdef CONFIG_FS_ENCRYPTION
+#define DUMMY_ENCRYPTION_ENABLED(sbi) ((sbi)->s_dummy_enc_ctx.ctx != NULL)
#else
#define DUMMY_ENCRYPTION_ENABLED(sbi) (0)
#endif
@@ -1352,6 +1357,8 @@ struct ext4_super_block {
/* Number of quota types we support */
#define EXT4_MAXQUOTAS 3
+#define EXT4_ENC_UTF8_12_1 1
+
/*
* fourth extended-fs super-block data in memory
*/
@@ -1520,6 +1527,9 @@ struct ext4_sb_info {
struct ratelimit_state s_warning_ratelimit_state;
struct ratelimit_state s_msg_ratelimit_state;
+ /* Encryption context for '-o test_dummy_encryption' */
+ struct fscrypt_dummy_context s_dummy_enc_ctx;
+
/*
* Barrier between writepages ops and changing any inode's JOURNAL_DATA
* or EXTENTS flag.
@@ -1576,6 +1586,7 @@ enum {
EXT4_STATE_MAY_INLINE_DATA, /* may have in-inode data */
EXT4_STATE_EXT_PRECACHED, /* extents have been precached */
EXT4_STATE_LUSTRE_EA_INODE, /* Lustre-style ea_inode */
+ EXT4_STATE_VERITY_IN_PROGRESS, /* building fs-verity Merkle tree */
};
#define EXT4_INODE_BIT_FNS(name, field, offset) \
@@ -1626,9 +1637,12 @@ static inline void ext4_clear_state_flags(struct ext4_inode_info *ei)
#define EXT4_SB(sb) (sb)
#endif
-/*
- * Returns true if the inode is inode is encrypted
- */
+static inline bool ext4_verity_in_progress(struct inode *inode)
+{
+ return IS_ENABLED(CONFIG_FS_VERITY) &&
+ ext4_test_inode_state(inode, EXT4_STATE_VERITY_IN_PROGRESS);
+}
+
#define NEXT_ORPHAN(inode) EXT4_I(inode)->i_dtime
/*
@@ -1662,6 +1676,7 @@ static inline void ext4_clear_state_flags(struct ext4_inode_info *ei)
#define EXT4_FEATURE_COMPAT_RESIZE_INODE 0x0010
#define EXT4_FEATURE_COMPAT_DIR_INDEX 0x0020
#define EXT4_FEATURE_COMPAT_SPARSE_SUPER2 0x0200
+#define EXT4_FEATURE_COMPAT_STABLE_INODES 0x0800
#define EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001
#define EXT4_FEATURE_RO_COMPAT_LARGE_FILE 0x0002
@@ -1681,6 +1696,7 @@ static inline void ext4_clear_state_flags(struct ext4_inode_info *ei)
#define EXT4_FEATURE_RO_COMPAT_METADATA_CSUM 0x0400
#define EXT4_FEATURE_RO_COMPAT_READONLY 0x1000
#define EXT4_FEATURE_RO_COMPAT_PROJECT 0x2000
+#define EXT4_FEATURE_RO_COMPAT_VERITY 0x8000
#define EXT4_FEATURE_INCOMPAT_COMPRESSION 0x0001
#define EXT4_FEATURE_INCOMPAT_FILETYPE 0x0002
@@ -1697,6 +1713,7 @@ static inline void ext4_clear_state_flags(struct ext4_inode_info *ei)
#define EXT4_FEATURE_INCOMPAT_LARGEDIR 0x4000 /* >2GB or 3-lvl htree */
#define EXT4_FEATURE_INCOMPAT_INLINE_DATA 0x8000 /* data in inode */
#define EXT4_FEATURE_INCOMPAT_ENCRYPT 0x10000
+#define EXT4_FEATURE_INCOMPAT_CASEFOLD 0x20000
extern void ext4_update_dynamic_rev(struct super_block *sb);
@@ -1761,6 +1778,7 @@ EXT4_FEATURE_COMPAT_FUNCS(xattr, EXT_ATTR)
EXT4_FEATURE_COMPAT_FUNCS(resize_inode, RESIZE_INODE)
EXT4_FEATURE_COMPAT_FUNCS(dir_index, DIR_INDEX)
EXT4_FEATURE_COMPAT_FUNCS(sparse_super2, SPARSE_SUPER2)
+EXT4_FEATURE_COMPAT_FUNCS(stable_inodes, STABLE_INODES)
EXT4_FEATURE_RO_COMPAT_FUNCS(sparse_super, SPARSE_SUPER)
EXT4_FEATURE_RO_COMPAT_FUNCS(large_file, LARGE_FILE)
@@ -1774,6 +1792,7 @@ EXT4_FEATURE_RO_COMPAT_FUNCS(bigalloc, BIGALLOC)
EXT4_FEATURE_RO_COMPAT_FUNCS(metadata_csum, METADATA_CSUM)
EXT4_FEATURE_RO_COMPAT_FUNCS(readonly, READONLY)
EXT4_FEATURE_RO_COMPAT_FUNCS(project, PROJECT)
+EXT4_FEATURE_RO_COMPAT_FUNCS(verity, VERITY)
EXT4_FEATURE_INCOMPAT_FUNCS(compression, COMPRESSION)
EXT4_FEATURE_INCOMPAT_FUNCS(filetype, FILETYPE)
@@ -1790,6 +1809,7 @@ EXT4_FEATURE_INCOMPAT_FUNCS(csum_seed, CSUM_SEED)
EXT4_FEATURE_INCOMPAT_FUNCS(largedir, LARGEDIR)
EXT4_FEATURE_INCOMPAT_FUNCS(inline_data, INLINE_DATA)
EXT4_FEATURE_INCOMPAT_FUNCS(encrypt, ENCRYPT)
+EXT4_FEATURE_INCOMPAT_FUNCS(casefold, CASEFOLD)
#define EXT2_FEATURE_COMPAT_SUPP EXT4_FEATURE_COMPAT_EXT_ATTR
#define EXT2_FEATURE_INCOMPAT_SUPP (EXT4_FEATURE_INCOMPAT_FILETYPE| \
@@ -1817,6 +1837,7 @@ EXT4_FEATURE_INCOMPAT_FUNCS(encrypt, ENCRYPT)
EXT4_FEATURE_INCOMPAT_MMP | \
EXT4_FEATURE_INCOMPAT_INLINE_DATA | \
EXT4_FEATURE_INCOMPAT_ENCRYPT | \
+ EXT4_FEATURE_INCOMPAT_CASEFOLD | \
EXT4_FEATURE_INCOMPAT_CSUM_SEED | \
EXT4_FEATURE_INCOMPAT_LARGEDIR)
#define EXT4_FEATURE_RO_COMPAT_SUPP (EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER| \
@@ -1829,7 +1850,8 @@ EXT4_FEATURE_INCOMPAT_FUNCS(encrypt, ENCRYPT)
EXT4_FEATURE_RO_COMPAT_BIGALLOC |\
EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|\
EXT4_FEATURE_RO_COMPAT_QUOTA |\
- EXT4_FEATURE_RO_COMPAT_PROJECT)
+ EXT4_FEATURE_RO_COMPAT_PROJECT |\
+ EXT4_FEATURE_RO_COMPAT_VERITY)
#define EXTN_FEATURE_FUNCS(ver) \
static inline bool ext4_has_unknown_ext##ver##_compat_features(struct super_block *sb) \
@@ -1931,6 +1953,17 @@ struct ext4_dir_entry {
char name[EXT4_NAME_LEN]; /* File name */
};
+
+/*
+ * Encrypted Casefolded entries require saving the hash on disk. This structure
+ * followed ext4_dir_entry_2's name[name_len] at the next 4 byte aligned
+ * boundary.
+ */
+struct ext4_dir_entry_hash {
+ __le32 hash;
+ __le32 minor_hash;
+};
+
/*
* The new version of the directory entry. Since EXT4 structures are
* stored in intel byte order, and the name_len field could never be
@@ -1946,6 +1979,22 @@ struct ext4_dir_entry_2 {
};
/*
+ * Access the hashes at the end of ext4_dir_entry_2
+ */
+#define EXT4_DIRENT_HASHES(entry) \
+ ((struct ext4_dir_entry_hash *) \
+ (((void *)(entry)) + \
+ ((8 + (entry)->name_len + EXT4_DIR_ROUND) & ~EXT4_DIR_ROUND)))
+#define EXT4_DIRENT_HASH(entry) le32_to_cpu(EXT4_DIRENT_HASHES(de)->hash)
+#define EXT4_DIRENT_MINOR_HASH(entry) \
+ le32_to_cpu(EXT4_DIRENT_HASHES(de)->minor_hash)
+
+static inline bool ext4_hash_in_dirent(const struct inode *inode)
+{
+ return IS_CASEFOLDED(inode) && IS_ENCRYPTED(inode);
+}
+
+/*
* This is a bogus directory entry at the end of each leaf block that
* records checksums.
*/
@@ -1986,11 +2035,25 @@ struct ext4_dir_entry_tail {
*/
#define EXT4_DIR_PAD 4
#define EXT4_DIR_ROUND (EXT4_DIR_PAD - 1)
-#define EXT4_DIR_REC_LEN(name_len) (((name_len) + 8 + EXT4_DIR_ROUND) & \
- ~EXT4_DIR_ROUND)
#define EXT4_MAX_REC_LEN ((1<<16)-1)
/*
+ * The rec_len is dependent on the type of directory. Directories that are
+ * casefolded and encrypted need to store the hash as well, so we add room for
+ * ext4_extended_dir_entry_2. For all entries related to '.' or '..' you should
+ * pass NULL for dir, as those entries do not use the extra fields.
+ */
+static inline unsigned int ext4_dir_rec_len(__u8 name_len,
+ const struct inode *dir)
+{
+ int rec_len = (name_len + 8 + EXT4_DIR_ROUND);
+
+ if (dir && ext4_hash_in_dirent(dir))
+ rec_len += sizeof(struct ext4_dir_entry_hash);
+ return (rec_len & ~EXT4_DIR_ROUND);
+}
+
+/*
* If we ever get support for fs block sizes > page_size, we'll need
* to remove the #if statements in the next two functions...
*/
@@ -2046,6 +2109,7 @@ static inline __le16 ext4_rec_len_to_disk(unsigned len, unsigned blocksize)
#define DX_HASH_LEGACY_UNSIGNED 3
#define DX_HASH_HALF_MD4_UNSIGNED 4
#define DX_HASH_TEA_UNSIGNED 5
+#define DX_HASH_SIPHASH 6
static inline u32 ext4_chksum(struct ext4_sb_info *sbi, u32 crc,
const void *address, unsigned int length)
@@ -2092,12 +2156,16 @@ struct ext4_filename {
const struct qstr *usr_fname;
struct fscrypt_str disk_name;
struct dx_hash_info hinfo;
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
+#ifdef CONFIG_FS_ENCRYPTION
struct fscrypt_str crypto_buf;
#endif
+#ifdef CONFIG_UNICODE
+ struct fscrypt_str cf_name;
+#endif
};
#define fname_name(p) ((p)->disk_name.name)
+#define fname_usr_name(p) ((p)->usr_fname->name)
#define fname_len(p) ((p)->disk_name.len)
/*
@@ -2320,12 +2388,13 @@ extern unsigned ext4_free_clusters_after_init(struct super_block *sb,
struct ext4_group_desc *gdp);
ext4_fsblk_t ext4_inode_to_goal_block(struct inode *);
-static inline bool ext4_encrypted_inode(struct inode *inode)
-{
- return ext4_test_inode_flag(inode, EXT4_INODE_ENCRYPT);
-}
+#ifdef CONFIG_UNICODE
+extern int ext4_fname_setup_ci_filename(struct inode *dir,
+ const struct qstr *iname,
+ struct ext4_filename *fname);
+#endif
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
+#ifdef CONFIG_FS_ENCRYPTION
static inline void ext4_fname_from_fscrypt_name(struct ext4_filename *dst,
const struct fscrypt_name *src)
{
@@ -2351,7 +2420,11 @@ static inline int ext4_fname_setup_filename(struct inode *dir,
return err;
ext4_fname_from_fscrypt_name(fname, &name);
- return 0;
+
+#ifdef CONFIG_UNICODE
+ err = ext4_fname_setup_ci_filename(dir, iname, fname);
+#endif
+ return err;
}
static inline int ext4_fname_prepare_lookup(struct inode *dir,
@@ -2366,7 +2439,11 @@ static inline int ext4_fname_prepare_lookup(struct inode *dir,
return err;
ext4_fname_from_fscrypt_name(fname, &name);
- return 0;
+
+#ifdef CONFIG_UNICODE
+ err = ext4_fname_setup_ci_filename(dir, &dentry->d_name, fname);
+#endif
+ return err;
}
static inline void ext4_fname_free_filename(struct ext4_filename *fname)
@@ -2379,17 +2456,28 @@ static inline void ext4_fname_free_filename(struct ext4_filename *fname)
fname->crypto_buf.name = NULL;
fname->usr_fname = NULL;
fname->disk_name.name = NULL;
+
+#ifdef CONFIG_UNICODE
+ kfree(fname->cf_name.name);
+ fname->cf_name.name = NULL;
+#endif
}
-#else /* !CONFIG_EXT4_FS_ENCRYPTION */
+#else /* !CONFIG_FS_ENCRYPTION */
static inline int ext4_fname_setup_filename(struct inode *dir,
const struct qstr *iname,
int lookup,
struct ext4_filename *fname)
{
+ int err = 0;
fname->usr_fname = iname;
fname->disk_name.name = (unsigned char *) iname->name;
fname->disk_name.len = iname->len;
- return 0;
+
+#ifdef CONFIG_UNICODE
+ err = ext4_fname_setup_ci_filename(dir, iname, fname);
+#endif
+
+ return err;
}
static inline int ext4_fname_prepare_lookup(struct inode *dir,
@@ -2399,29 +2487,36 @@ static inline int ext4_fname_prepare_lookup(struct inode *dir,
return ext4_fname_setup_filename(dir, &dentry->d_name, 1, fname);
}
-static inline void ext4_fname_free_filename(struct ext4_filename *fname) { }
-#endif /* !CONFIG_EXT4_FS_ENCRYPTION */
+static inline void ext4_fname_free_filename(struct ext4_filename *fname)
+{
+#ifdef CONFIG_UNICODE
+ kfree(fname->cf_name.name);
+ fname->cf_name.name = NULL;
+#endif
+}
+#endif /* !CONFIG_FS_ENCRYPTION */
/* dir.c */
extern int __ext4_check_dir_entry(const char *, unsigned int, struct inode *,
struct file *,
struct ext4_dir_entry_2 *,
struct buffer_head *, char *, int,
- unsigned int);
-#define ext4_check_dir_entry(dir, filp, de, bh, buf, size, offset) \
+ ext4_lblk_t, unsigned int);
+#define ext4_check_dir_entry(dir, filp, de, bh, buf, size, lblk, offset) \
unlikely(__ext4_check_dir_entry(__func__, __LINE__, (dir), (filp), \
- (de), (bh), (buf), (size), (offset)))
+ (de), (bh), (buf), (size), (lblk), (offset)))
extern int ext4_htree_store_dirent(struct file *dir_file, __u32 hash,
__u32 minor_hash,
struct ext4_dir_entry_2 *dirent,
struct fscrypt_str *ent_name);
extern void ext4_htree_free_dir_info(struct dir_private_info *p);
extern int ext4_find_dest_de(struct inode *dir, struct inode *inode,
+ ext4_lblk_t lblk,
struct buffer_head *bh,
void *buf, int buf_size,
struct ext4_filename *fname,
struct ext4_dir_entry_2 **dest_de);
-void ext4_insert_dentry(struct inode *inode,
+void ext4_insert_dentry(struct inode *dir, struct inode *inode,
struct ext4_dir_entry_2 *de,
int buf_size,
struct ext4_filename *fname);
@@ -2452,8 +2547,8 @@ extern int ext4_check_all_de(struct inode *dir, struct buffer_head *bh,
extern int ext4_sync_file(struct file *, loff_t, loff_t, int);
/* hash.c */
-extern int ext4fs_dirhash(const char *name, int len, struct
- dx_hash_info *hinfo);
+extern int ext4fs_dirhash(const struct inode *dir, const char *name, int len,
+ struct dx_hash_info *hinfo);
/* ialloc.c */
extern struct inode *__ext4_new_inode(handle_t *, struct inode *, umode_t,
@@ -2605,11 +2700,12 @@ extern int ext4_search_dir(struct buffer_head *bh,
int buf_size,
struct inode *dir,
struct ext4_filename *fname,
- unsigned int offset,
+ ext4_lblk_t lblk, unsigned int offset,
struct ext4_dir_entry_2 **res_dir);
extern int ext4_generic_delete_entry(handle_t *handle,
struct inode *dir,
struct ext4_dir_entry_2 *de_del,
+ ext4_lblk_t lblk,
struct buffer_head *bh,
void *entry_buf,
int buf_size,
@@ -3049,6 +3145,10 @@ static inline void ext4_unlock_group(struct super_block *sb,
/* dir.c */
extern const struct file_operations ext4_dir_operations;
+#ifdef CONFIG_UNICODE
+extern const struct dentry_operations ext4_dentry_ops;
+#endif
+
/* file.c */
extern const struct inode_operations ext4_file_inode_operations;
extern const struct file_operations ext4_file_operations;
@@ -3141,6 +3241,7 @@ extern void initialize_dirent_tail(struct ext4_dir_entry_tail *t,
extern int ext4_handle_dirty_dirent_node(handle_t *handle,
struct inode *inode,
struct buffer_head *bh);
+
#define S_SHIFT 12
static const unsigned char ext4_type_by_mode[(S_IFMT >> S_SHIFT) + 1] = {
[S_IFREG >> S_SHIFT] = EXT4_FT_REG_FILE,
@@ -3163,6 +3264,8 @@ static inline void ext4_set_de_type(struct super_block *sb,
extern int ext4_mpage_readpages(struct address_space *mapping,
struct list_head *pages, struct page *page,
unsigned nr_pages, bool is_readahead);
+extern int __init ext4_init_post_read_processing(void);
+extern void ext4_exit_post_read_processing(void);
/* symlink.c */
extern const struct inode_operations ext4_encrypted_symlink_inode_operations;
@@ -3272,6 +3375,9 @@ extern int ext4_bio_write_page(struct ext4_io_submit *io,
/* mmp.c */
extern int ext4_multi_mount_protect(struct super_block *, ext4_fsblk_t);
+/* verity.c */
+extern const struct fsverity_operations ext4_verityops;
+
/*
* Add new method to test whether block and inode bitmaps are properly
* initialized. With uninit_bg reading the block from disk is not enough
diff --git a/fs/ext4/ext4_jbd2.h b/fs/ext4/ext4_jbd2.h
index 402dc36..ef8fcf7 100644
--- a/fs/ext4/ext4_jbd2.h
+++ b/fs/ext4/ext4_jbd2.h
@@ -411,7 +411,7 @@ static inline int ext4_inode_journal_mode(struct inode *inode)
(ext4_test_inode_flag(inode, EXT4_INODE_JOURNAL_DATA) &&
!test_opt(inode->i_sb, DELALLOC))) {
/* We do not support data journalling for encrypted data */
- if (S_ISREG(inode->i_mode) && ext4_encrypted_inode(inode))
+ if (S_ISREG(inode->i_mode) && IS_ENCRYPTED(inode))
return EXT4_INODE_ORDERED_DATA_MODE; /* ordered */
return EXT4_INODE_JOURNAL_DATA_MODE; /* journal data */
}
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 2a45e0d..f0e5fe5 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -3595,7 +3595,7 @@ static int ext4_ext_convert_to_initialized(handle_t *handle,
max_zeroout = sbi->s_extent_max_zeroout_kb >>
(inode->i_sb->s_blocksize_bits - 10);
- if (ext4_encrypted_inode(inode))
+ if (IS_ENCRYPTED(inode))
max_zeroout = 0;
/*
@@ -4945,7 +4945,7 @@ long ext4_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
* leave it disabled for encrypted inodes for now. This is a
* bug we should fix....
*/
- if (ext4_encrypted_inode(inode) &&
+ if (IS_ENCRYPTED(inode) &&
(mode & (FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_INSERT_RANGE |
FALLOC_FL_ZERO_RANGE)))
return -EOPNOTSUPP;
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 52d155b..26d5627 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -457,6 +457,10 @@ static int ext4_file_open(struct inode * inode, struct file * filp)
if (ret)
return ret;
+ ret = fsverity_file_open(inode, filp);
+ if (ret)
+ return ret;
+
/*
* Set up the jbd2_inode if we are opening the inode for
* writing and the journal is present
diff --git a/fs/ext4/hash.c b/fs/ext4/hash.c
index e22dcfa..326b4d2 100644
--- a/fs/ext4/hash.c
+++ b/fs/ext4/hash.c
@@ -6,6 +6,7 @@
*/
#include <linux/fs.h>
+#include <linux/unicode.h>
#include <linux/compiler.h>
#include <linux/bitops.h>
#include "ext4.h"
@@ -196,7 +197,8 @@ static void str2hashbuf_unsigned(const char *msg, int len, __u32 *buf, int num)
* represented, and whether or not the returned hash is 32 bits or 64
* bits. 32 bit hashes will return 0 for the minor hash.
*/
-int ext4fs_dirhash(const char *name, int len, struct dx_hash_info *hinfo)
+static int __ext4fs_dirhash(const struct inode *dir, const char *name, int len,
+ struct dx_hash_info *hinfo)
{
__u32 hash;
__u32 minor_hash = 0;
@@ -255,6 +257,22 @@ int ext4fs_dirhash(const char *name, int len, struct dx_hash_info *hinfo)
hash = buf[0];
minor_hash = buf[1];
break;
+ case DX_HASH_SIPHASH:
+ {
+ struct qstr qname = QSTR_INIT(name, len);
+ __u64 combined_hash;
+
+ if (fscrypt_has_encryption_key(dir)) {
+ combined_hash = fscrypt_fname_siphash(dir, &qname);
+ } else {
+ ext4_warning_inode(dir, "Siphash requires key");
+ return -1;
+ }
+
+ hash = (__u32)(combined_hash >> 32);
+ minor_hash = (__u32)combined_hash;
+ break;
+ }
default:
hinfo->hash = 0;
return -1;
@@ -266,3 +284,33 @@ int ext4fs_dirhash(const char *name, int len, struct dx_hash_info *hinfo)
hinfo->minor_hash = minor_hash;
return 0;
}
+
+int ext4fs_dirhash(const struct inode *dir, const char *name, int len,
+ struct dx_hash_info *hinfo)
+{
+#ifdef CONFIG_UNICODE
+ const struct unicode_map *um = dir->i_sb->s_encoding;
+ int r, dlen;
+ unsigned char *buff;
+ struct qstr qstr = {.name = name, .len = len };
+
+ if (len && needs_casefold(dir) && um) {
+ buff = kzalloc(sizeof(char) * PATH_MAX, GFP_KERNEL);
+ if (!buff)
+ return -ENOMEM;
+
+ dlen = utf8_casefold(um, &qstr, buff, PATH_MAX);
+ if (dlen < 0) {
+ kfree(buff);
+ goto opaque_seq;
+ }
+
+ r = __ext4fs_dirhash(dir, buff, dlen, hinfo);
+
+ kfree(buff);
+ return r;
+ }
+opaque_seq:
+#endif
+ return __ext4fs_dirhash(dir, name, len, hinfo);
+}
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 5cb19fd..a29e3fc 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -455,9 +455,12 @@ static int find_group_orlov(struct super_block *sb, struct inode *parent,
int ret = -1;
if (qstr) {
- hinfo.hash_version = DX_HASH_HALF_MD4;
+ if (ext4_hash_in_dirent(parent))
+ hinfo.hash_version = DX_HASH_SIPHASH;
+ else
+ hinfo.hash_version = DX_HASH_HALF_MD4;
hinfo.seed = sbi->s_hash_seed;
- ext4fs_dirhash(qstr->name, qstr->len, &hinfo);
+ ext4fs_dirhash(parent, qstr->name, qstr->len, &hinfo);
grp = hinfo.hash;
} else
grp = prandom_u32();
@@ -773,7 +776,7 @@ struct inode *__ext4_new_inode(handle_t *handle, struct inode *dir,
if (unlikely(ext4_forced_shutdown(sbi)))
return ERR_PTR(-EIO);
- if ((ext4_encrypted_inode(dir) || DUMMY_ENCRYPTION_ENABLED(sbi)) &&
+ if ((IS_ENCRYPTED(dir) || DUMMY_ENCRYPTION_ENABLED(sbi)) &&
(S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)) &&
!(i_flags & EXT4_EA_INODE_FL)) {
err = fscrypt_get_encryption_info(dir);
diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
index c64e4a1..512a0b3 100644
--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -12,6 +12,7 @@
#include "ext4.h"
#include "xattr.h"
#include "truncate.h"
+#include <trace/events/android_fs.h>
#define EXT4_XATTR_SYSTEM_DATA "data"
#define EXT4_MIN_INLINE_DATA_SIZE ((sizeof(__le32) * EXT4_N_BLOCKS))
@@ -505,6 +506,17 @@ int ext4_readpage_inline(struct inode *inode, struct page *page)
return -EAGAIN;
}
+ if (trace_android_fs_dataread_start_enabled()) {
+ char *path, pathbuf[MAX_TRACE_PATHBUF_LEN];
+
+ path = android_fstrace_get_pathname(pathbuf,
+ MAX_TRACE_PATHBUF_LEN,
+ inode);
+ trace_android_fs_dataread_start(inode, page_offset(page),
+ PAGE_SIZE, current->pid,
+ path, current->comm);
+ }
+
/*
* Current inline data can only exist in the 1st page,
* So for all the other pages, just set them uptodate.
@@ -516,6 +528,8 @@ int ext4_readpage_inline(struct inode *inode, struct page *page)
SetPageUptodate(page);
}
+ trace_android_fs_dataread_end(inode, page_offset(page), PAGE_SIZE);
+
up_read(&EXT4_I(inode)->xattr_sem);
unlock_page(page);
@@ -1002,7 +1016,7 @@ void ext4_show_inline_dir(struct inode *dir, struct buffer_head *bh,
offset, de_len, de->name_len, de->name,
de->name_len, le32_to_cpu(de->inode));
if (ext4_check_dir_entry(dir, NULL, de, bh,
- inline_start, inline_size, offset))
+ inline_start, inline_size, 0, offset))
BUG();
offset += de_len;
@@ -1028,7 +1042,7 @@ static int ext4_add_dirent_to_inline(handle_t *handle,
int err;
struct ext4_dir_entry_2 *de;
- err = ext4_find_dest_de(dir, inode, iloc->bh, inline_start,
+ err = ext4_find_dest_de(dir, inode, 0, iloc->bh, inline_start,
inline_size, fname, &de);
if (err)
return err;
@@ -1037,7 +1051,7 @@ static int ext4_add_dirent_to_inline(handle_t *handle,
err = ext4_journal_get_write_access(handle, iloc->bh);
if (err)
return err;
- ext4_insert_dentry(inode, de, inline_size, fname);
+ ext4_insert_dentry(dir, inode, de, inline_size, fname);
ext4_show_inline_dir(dir, iloc->bh, inline_start, inline_size);
@@ -1106,7 +1120,7 @@ static int ext4_update_inline_dir(handle_t *handle, struct inode *dir,
int old_size = EXT4_I(dir)->i_inline_size - EXT4_MIN_INLINE_DATA_SIZE;
int new_size = get_max_inline_xattr_value_size(dir, iloc);
- if (new_size - old_size <= EXT4_DIR_REC_LEN(1))
+ if (new_size - old_size <= ext4_dir_rec_len(1, NULL))
return -ENOSPC;
ret = ext4_update_inline_data(handle, dir,
@@ -1387,8 +1401,8 @@ int htree_inlinedir_to_tree(struct file *dir_file,
fake.name_len = 1;
strcpy(fake.name, ".");
fake.rec_len = ext4_rec_len_to_disk(
- EXT4_DIR_REC_LEN(fake.name_len),
- inline_size);
+ ext4_dir_rec_len(fake.name_len, NULL),
+ inline_size);
ext4_set_de_type(inode->i_sb, &fake, S_IFDIR);
de = &fake;
pos = EXT4_INLINE_DOTDOT_OFFSET;
@@ -1397,8 +1411,8 @@ int htree_inlinedir_to_tree(struct file *dir_file,
fake.name_len = 2;
strcpy(fake.name, "..");
fake.rec_len = ext4_rec_len_to_disk(
- EXT4_DIR_REC_LEN(fake.name_len),
- inline_size);
+ ext4_dir_rec_len(fake.name_len, NULL),
+ inline_size);
ext4_set_de_type(inode->i_sb, &fake, S_IFDIR);
de = &fake;
pos = EXT4_INLINE_DOTDOT_SIZE;
@@ -1407,13 +1421,18 @@ int htree_inlinedir_to_tree(struct file *dir_file,
pos += ext4_rec_len_from_disk(de->rec_len, inline_size);
if (ext4_check_dir_entry(inode, dir_file, de,
iloc.bh, dir_buf,
- inline_size, pos)) {
+ inline_size, block, pos)) {
ret = count;
goto out;
}
}
- ext4fs_dirhash(de->name, de->name_len, hinfo);
+ if (ext4_hash_in_dirent(dir)) {
+ hinfo->hash = EXT4_DIRENT_HASH(de);
+ hinfo->minor_hash = EXT4_DIRENT_MINOR_HASH(de);
+ } else {
+ ext4fs_dirhash(dir, de->name, de->name_len, hinfo);
+ }
if ((hinfo->hash < start_hash) ||
((hinfo->hash == start_hash) &&
(hinfo->minor_hash < start_minor_hash)))
@@ -1495,8 +1514,8 @@ int ext4_read_inline_dir(struct file *file,
* So we will use extra_offset and extra_size to indicate them
* during the inline dir iteration.
*/
- dotdot_offset = EXT4_DIR_REC_LEN(1);
- dotdot_size = dotdot_offset + EXT4_DIR_REC_LEN(2);
+ dotdot_offset = ext4_dir_rec_len(1, NULL);
+ dotdot_size = dotdot_offset + ext4_dir_rec_len(2, NULL);
extra_offset = dotdot_size - EXT4_INLINE_DOTDOT_SIZE;
extra_size = extra_offset + inline_size;
@@ -1531,7 +1550,7 @@ int ext4_read_inline_dir(struct file *file,
* failure will be detected in the
* dirent test below. */
if (ext4_rec_len_from_disk(de->rec_len, extra_size)
- < EXT4_DIR_REC_LEN(1))
+ < ext4_dir_rec_len(1, NULL))
break;
i += ext4_rec_len_from_disk(de->rec_len,
extra_size);
@@ -1559,7 +1578,7 @@ int ext4_read_inline_dir(struct file *file,
de = (struct ext4_dir_entry_2 *)
(dir_buf + ctx->pos - extra_offset);
if (ext4_check_dir_entry(inode, file, de, iloc.bh, dir_buf,
- extra_size, ctx->pos))
+ extra_size, 0, ctx->pos))
goto out;
if (le32_to_cpu(de->inode)) {
if (!dir_emit(ctx, de->name, de->name_len,
@@ -1651,7 +1670,7 @@ struct buffer_head *ext4_find_inline_entry(struct inode *dir,
EXT4_INLINE_DOTDOT_SIZE;
inline_size = EXT4_MIN_INLINE_DATA_SIZE - EXT4_INLINE_DOTDOT_SIZE;
ret = ext4_search_dir(iloc.bh, inline_start, inline_size,
- dir, fname, 0, res_dir);
+ dir, fname, 0, 0, res_dir);
if (ret == 1)
goto out_find;
if (ret < 0)
@@ -1664,7 +1683,7 @@ struct buffer_head *ext4_find_inline_entry(struct inode *dir,
inline_size = ext4_get_inline_size(dir) - EXT4_MIN_INLINE_DATA_SIZE;
ret = ext4_search_dir(iloc.bh, inline_start, inline_size,
- dir, fname, 0, res_dir);
+ dir, fname, 0, 0, res_dir);
if (ret == 1)
goto out_find;
@@ -1713,7 +1732,7 @@ int ext4_delete_inline_entry(handle_t *handle,
if (err)
goto out;
- err = ext4_generic_delete_entry(handle, dir, de_del, bh,
+ err = ext4_generic_delete_entry(handle, dir, de_del, 0, bh,
inline_start, inline_size, 0);
if (err)
goto out;
@@ -1797,7 +1816,7 @@ bool empty_inline_dir(struct inode *dir, int *has_inline_data)
&inline_pos, &inline_size);
if (ext4_check_dir_entry(dir, NULL, de,
iloc.bh, inline_pos,
- inline_size, offset)) {
+ inline_size, 0, offset)) {
ext4_warning(dir->i_sb,
"bad inline directory (dir #%lu) - "
"inode %u, rec_len %u, name_len %d"
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 7959aae..4113b94 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -47,6 +47,7 @@
#include "truncate.h"
#include <trace/events/ext4.h>
+#include <trace/events/android_fs.h>
#define MPAGE_DA_EXTENT_TAIL 0x01
@@ -436,7 +437,7 @@ int ext4_issue_zeroout(struct inode *inode, ext4_lblk_t lblk, ext4_fsblk_t pblk,
{
int ret;
- if (ext4_encrypted_inode(inode))
+ if (IS_ENCRYPTED(inode))
return fscrypt_zeroout_range(inode, lblk, pblk, len);
ret = sb_issue_zeroout(inode->i_sb, pblk, len, GFP_NOFS);
@@ -1177,7 +1178,7 @@ int do_journal_get_write_access(handle_t *handle,
return ret;
}
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
+#ifdef CONFIG_FS_ENCRYPTION
static int ext4_block_write_begin(struct page *page, loff_t pos, unsigned len,
get_block_t *get_block)
{
@@ -1244,8 +1245,7 @@ static int ext4_block_write_begin(struct page *page, loff_t pos, unsigned len,
(block_start < from || block_end > to)) {
ll_rw_block(REQ_OP_READ, 0, 1, &bh);
*wait_bh++ = bh;
- decrypt = ext4_encrypted_inode(inode) &&
- S_ISREG(inode->i_mode);
+ decrypt = fscrypt_inode_uses_fs_layer_crypto(inode);
}
}
/*
@@ -1259,8 +1259,7 @@ static int ext4_block_write_begin(struct page *page, loff_t pos, unsigned len,
if (unlikely(err))
page_zero_new_buffers(page, from, to);
else if (decrypt)
- err = fscrypt_decrypt_page(page->mapping->host, page,
- PAGE_SIZE, 0, page->index);
+ err = fscrypt_decrypt_pagecache_blocks(page, PAGE_SIZE, 0);
return err;
}
#endif
@@ -1280,6 +1279,16 @@ static int ext4_write_begin(struct file *file, struct address_space *mapping,
if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb))))
return -EIO;
+ if (trace_android_fs_datawrite_start_enabled()) {
+ char *path, pathbuf[MAX_TRACE_PATHBUF_LEN];
+
+ path = android_fstrace_get_pathname(pathbuf,
+ MAX_TRACE_PATHBUF_LEN,
+ inode);
+ trace_android_fs_datawrite_start(inode, pos, len,
+ current->pid, path,
+ current->comm);
+ }
trace_ext4_write_begin(inode, pos, len, flags);
/*
* Reserve one block more for addition to orphan list in case
@@ -1330,7 +1339,7 @@ static int ext4_write_begin(struct file *file, struct address_space *mapping,
/* In case writeback began while the page was unlocked */
wait_for_stable_page(page);
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
+#ifdef CONFIG_FS_ENCRYPTION
if (ext4_should_dioread_nolock(inode))
ret = ext4_block_write_begin(page, pos, len,
ext4_get_block_unwritten);
@@ -1351,6 +1360,9 @@ static int ext4_write_begin(struct file *file, struct address_space *mapping,
}
if (ret) {
+ bool extended = (pos + len > inode->i_size) &&
+ !ext4_verity_in_progress(inode);
+
unlock_page(page);
/*
* __block_write_begin may have instantiated a few blocks
@@ -1360,11 +1372,11 @@ static int ext4_write_begin(struct file *file, struct address_space *mapping,
* Add inode to orphan list in case we crash before
* truncate finishes
*/
- if (pos + len > inode->i_size && ext4_can_truncate(inode))
+ if (extended && ext4_can_truncate(inode))
ext4_orphan_add(handle, inode);
ext4_journal_stop(handle);
- if (pos + len > inode->i_size) {
+ if (extended) {
ext4_truncate_failed_write(inode);
/*
* If truncate failed early the inode might
@@ -1417,7 +1429,9 @@ static int ext4_write_end(struct file *file,
int ret = 0, ret2;
int i_size_changed = 0;
int inline_data = ext4_has_inline_data(inode);
+ bool verity = ext4_verity_in_progress(inode);
+ trace_android_fs_datawrite_end(inode, pos, len);
trace_ext4_write_end(inode, pos, len, copied);
if (inline_data) {
ret = ext4_write_inline_data_end(inode, pos, len,
@@ -1434,12 +1448,16 @@ static int ext4_write_end(struct file *file,
/*
* it's important to update i_size while still holding page lock:
* page writeout could otherwise come in and zero beyond i_size.
+ *
+ * If FS_IOC_ENABLE_VERITY is running on this inode, then Merkle tree
+ * blocks are being written past EOF, so skip the i_size update.
*/
- i_size_changed = ext4_update_inode_size(inode, pos + copied);
+ if (!verity)
+ i_size_changed = ext4_update_inode_size(inode, pos + copied);
unlock_page(page);
put_page(page);
- if (old_size < pos)
+ if (old_size < pos && !verity)
pagecache_isize_extended(inode, old_size, pos);
/*
* Don't mark the inode dirty under page lock. First, it unnecessarily
@@ -1450,7 +1468,7 @@ static int ext4_write_end(struct file *file,
if (i_size_changed || inline_data)
ext4_mark_inode_dirty(handle, inode);
- if (pos + len > inode->i_size && ext4_can_truncate(inode))
+ if (pos + len > inode->i_size && !verity && ext4_can_truncate(inode))
/* if we have allocated more blocks and copied
* less. We will have blocks allocated outside
* inode->i_size. So truncate them
@@ -1461,7 +1479,7 @@ static int ext4_write_end(struct file *file,
if (!ret)
ret = ret2;
- if (pos + len > inode->i_size) {
+ if (pos + len > inode->i_size && !verity) {
ext4_truncate_failed_write(inode);
/*
* If truncate failed early the inode might still be
@@ -1522,7 +1540,9 @@ static int ext4_journalled_write_end(struct file *file,
unsigned from, to;
int size_changed = 0;
int inline_data = ext4_has_inline_data(inode);
+ bool verity = ext4_verity_in_progress(inode);
+ trace_android_fs_datawrite_end(inode, pos, len);
trace_ext4_journalled_write_end(inode, pos, len, copied);
from = pos & (PAGE_SIZE - 1);
to = from + len;
@@ -1551,13 +1571,14 @@ static int ext4_journalled_write_end(struct file *file,
if (!partial)
SetPageUptodate(page);
}
- size_changed = ext4_update_inode_size(inode, pos + copied);
+ if (!verity)
+ size_changed = ext4_update_inode_size(inode, pos + copied);
ext4_set_inode_state(inode, EXT4_STATE_JDATA);
EXT4_I(inode)->i_datasync_tid = handle->h_transaction->t_tid;
unlock_page(page);
put_page(page);
- if (old_size < pos)
+ if (old_size < pos && !verity)
pagecache_isize_extended(inode, old_size, pos);
if (size_changed || inline_data) {
@@ -1566,7 +1587,7 @@ static int ext4_journalled_write_end(struct file *file,
ret = ret2;
}
- if (pos + len > inode->i_size && ext4_can_truncate(inode))
+ if (pos + len > inode->i_size && !verity && ext4_can_truncate(inode))
/* if we have allocated more blocks and copied
* less. We will have blocks allocated outside
* inode->i_size. So truncate them
@@ -1577,7 +1598,7 @@ static int ext4_journalled_write_end(struct file *file,
ret2 = ext4_journal_stop(handle);
if (!ret)
ret = ret2;
- if (pos + len > inode->i_size) {
+ if (pos + len > inode->i_size && !verity) {
ext4_truncate_failed_write(inode);
/*
* If truncate failed early the inode might still be
@@ -2143,7 +2164,8 @@ static int ext4_writepage(struct page *page,
trace_ext4_writepage(page);
size = i_size_read(inode);
- if (page->index == size >> PAGE_SHIFT)
+ if (page->index == size >> PAGE_SHIFT &&
+ !ext4_verity_in_progress(inode))
len = size & ~PAGE_MASK;
else
len = PAGE_SIZE;
@@ -2227,7 +2249,8 @@ static int mpage_submit_page(struct mpage_da_data *mpd, struct page *page)
* after page tables are updated.
*/
size = i_size_read(mpd->inode);
- if (page->index == size >> PAGE_SHIFT)
+ if (page->index == size >> PAGE_SHIFT &&
+ !ext4_verity_in_progress(mpd->inode))
len = size & ~PAGE_MASK;
else
len = PAGE_SIZE;
@@ -2326,6 +2349,9 @@ static int mpage_process_page_bufs(struct mpage_da_data *mpd,
ext4_lblk_t blocks = (i_size_read(inode) + i_blocksize(inode) - 1)
>> inode->i_blkbits;
+ if (ext4_verity_in_progress(inode))
+ blocks = EXT_MAX_BLOCKS;
+
do {
BUG_ON(buffer_locked(bh));
@@ -3045,13 +3071,23 @@ static int ext4_da_write_begin(struct file *file, struct address_space *mapping,
index = pos >> PAGE_SHIFT;
- if (ext4_nonda_switch(inode->i_sb) ||
- S_ISLNK(inode->i_mode)) {
+ if (ext4_nonda_switch(inode->i_sb) || S_ISLNK(inode->i_mode) ||
+ ext4_verity_in_progress(inode)) {
*fsdata = (void *)FALL_BACK_TO_NONDELALLOC;
return ext4_write_begin(file, mapping, pos,
len, flags, pagep, fsdata);
}
*fsdata = (void *)0;
+ if (trace_android_fs_datawrite_start_enabled()) {
+ char *path, pathbuf[MAX_TRACE_PATHBUF_LEN];
+
+ path = android_fstrace_get_pathname(pathbuf,
+ MAX_TRACE_PATHBUF_LEN,
+ inode);
+ trace_android_fs_datawrite_start(inode, pos, len,
+ current->pid,
+ path, current->comm);
+ }
trace_ext4_da_write_begin(inode, pos, len, flags);
if (ext4_test_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA)) {
@@ -3102,7 +3138,7 @@ static int ext4_da_write_begin(struct file *file, struct address_space *mapping,
/* In case writeback began while the page was unlocked */
wait_for_stable_page(page);
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
+#ifdef CONFIG_FS_ENCRYPTION
ret = ext4_block_write_begin(page, pos, len,
ext4_da_get_block_prep);
#else
@@ -3170,6 +3206,7 @@ static int ext4_da_write_end(struct file *file,
return ext4_write_end(file, mapping, pos,
len, copied, page, fsdata);
+ trace_android_fs_datawrite_end(inode, pos, len);
trace_ext4_da_write_end(inode, pos, len, copied);
start = pos & (PAGE_SIZE - 1);
end = start + copied - 1;
@@ -3892,11 +3929,13 @@ static ssize_t ext4_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
size_t count = iov_iter_count(iter);
loff_t offset = iocb->ki_pos;
ssize_t ret;
+ int rw = iov_iter_rw(iter);
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
- if (ext4_encrypted_inode(inode) && S_ISREG(inode->i_mode))
+ if (!fscrypt_dio_supported(iocb, iter))
return 0;
-#endif
+
+ if (fsverity_active(inode))
+ return 0;
/*
* If we are doing data journalling we don't support O_DIRECT
@@ -3908,12 +3947,42 @@ static ssize_t ext4_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
if (ext4_has_inline_data(inode))
return 0;
+ if (trace_android_fs_dataread_start_enabled() &&
+ (rw == READ)) {
+ char *path, pathbuf[MAX_TRACE_PATHBUF_LEN];
+
+ path = android_fstrace_get_pathname(pathbuf,
+ MAX_TRACE_PATHBUF_LEN,
+ inode);
+ trace_android_fs_dataread_start(inode, offset, count,
+ current->pid, path,
+ current->comm);
+ }
+ if (trace_android_fs_datawrite_start_enabled() &&
+ (rw == WRITE)) {
+ char *path, pathbuf[MAX_TRACE_PATHBUF_LEN];
+
+ path = android_fstrace_get_pathname(pathbuf,
+ MAX_TRACE_PATHBUF_LEN,
+ inode);
+ trace_android_fs_datawrite_start(inode, offset, count,
+ current->pid, path,
+ current->comm);
+ }
trace_ext4_direct_IO_enter(inode, offset, count, iov_iter_rw(iter));
if (iov_iter_rw(iter) == READ)
ret = ext4_direct_IO_read(iocb, iter);
else
ret = ext4_direct_IO_write(iocb, iter);
trace_ext4_direct_IO_exit(inode, offset, count, iov_iter_rw(iter), ret);
+
+ if (trace_android_fs_dataread_start_enabled() &&
+ (rw == READ))
+ trace_android_fs_dataread_end(inode, offset, count);
+ if (trace_android_fs_datawrite_start_enabled() &&
+ (rw == WRITE))
+ trace_android_fs_datawrite_end(inode, offset, count);
+
return ret;
}
@@ -4078,13 +4147,12 @@ static int __ext4_block_zero_page_range(handle_t *handle,
/* Uhhuh. Read error. Complain and punt. */
if (!buffer_uptodate(bh))
goto unlock;
- if (S_ISREG(inode->i_mode) &&
- ext4_encrypted_inode(inode)) {
+ if (fscrypt_inode_uses_fs_layer_crypto(inode)) {
/* We expect the key to be set. */
BUG_ON(!fscrypt_has_encryption_key(inode));
BUG_ON(blocksize != PAGE_SIZE);
- WARN_ON_ONCE(fscrypt_decrypt_page(page->mapping->host,
- page, PAGE_SIZE, 0, page->index));
+ WARN_ON_ONCE(fscrypt_decrypt_pagecache_blocks(
+ page, PAGE_SIZE, 0));
}
}
if (ext4_should_journal_data(inode)) {
@@ -4156,7 +4224,7 @@ static int ext4_block_truncate_page(handle_t *handle,
struct inode *inode = mapping->host;
/* If we are processing an encrypted inode during orphan list handling */
- if (ext4_encrypted_inode(inode) && !fscrypt_has_encryption_key(inode))
+ if (IS_ENCRYPTED(inode) && !fscrypt_has_encryption_key(inode))
return 0;
blocksize = inode->i_sb->s_blocksize;
@@ -4745,7 +4813,9 @@ static bool ext4_should_use_dax(struct inode *inode)
return false;
if (ext4_has_inline_data(inode))
return false;
- if (ext4_encrypted_inode(inode))
+ if (ext4_test_inode_flag(inode, EXT4_INODE_ENCRYPT))
+ return false;
+ if (ext4_test_inode_flag(inode, EXT4_INODE_VERITY))
return false;
return true;
}
@@ -4769,9 +4839,13 @@ void ext4_set_inode_flags(struct inode *inode)
new_fl |= S_DAX;
if (flags & EXT4_ENCRYPT_FL)
new_fl |= S_ENCRYPTED;
+ if (flags & EXT4_CASEFOLD_FL)
+ new_fl |= S_CASEFOLD;
+ if (flags & EXT4_VERITY_FL)
+ new_fl |= S_VERITY;
inode_set_flags(inode, new_fl,
S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC|S_DAX|
- S_ENCRYPTED);
+ S_ENCRYPTED|S_CASEFOLD|S_VERITY);
}
static blkcnt_t ext4_inode_blocks(struct ext4_inode *raw_inode,
@@ -5107,7 +5181,7 @@ struct inode *__ext4_iget(struct super_block *sb, unsigned long ino,
ret = -EFSCORRUPTED;
goto bad_inode;
}
- if (ext4_encrypted_inode(inode)) {
+ if (IS_ENCRYPTED(inode)) {
inode->i_op = &ext4_encrypted_symlink_inode_operations;
ext4_set_aops(inode);
} else if (ext4_inode_is_fast_symlink(inode)) {
@@ -5137,6 +5211,9 @@ struct inode *__ext4_iget(struct super_block *sb, unsigned long ino,
"iget: bogus i_mode (%o)", inode->i_mode);
goto bad_inode;
}
+ if (IS_CASEFOLDED(inode) && !ext4_has_feature_casefold(inode->i_sb))
+ EXT4_ERROR_INODE(inode,
+ "casefold flag without casefold feature");
brelse(iloc.bh);
unlock_new_inode(inode);
@@ -5578,6 +5655,10 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr)
if (error)
return error;
+ error = fsverity_prepare_setattr(dentry, attr);
+ if (error)
+ return error;
+
if (is_quota_modification(inode, attr)) {
error = dquot_initialize(inode);
if (error)
@@ -5760,12 +5841,15 @@ int ext4_getattr(const struct path *path, struct kstat *stat,
stat->attributes |= STATX_ATTR_IMMUTABLE;
if (flags & EXT4_NODUMP_FL)
stat->attributes |= STATX_ATTR_NODUMP;
+ if (flags & EXT4_VERITY_FL)
+ stat->attributes |= STATX_ATTR_VERITY;
stat->attributes_mask |= (STATX_ATTR_APPEND |
STATX_ATTR_COMPRESSED |
STATX_ATTR_ENCRYPTED |
STATX_ATTR_IMMUTABLE |
- STATX_ATTR_NODUMP);
+ STATX_ATTR_NODUMP |
+ STATX_ATTR_VERITY);
generic_fillattr(inode, stat);
return 0;
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index 21c9ebf..8c63220 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -257,7 +257,7 @@ static long swap_inode_boot_loader(struct super_block *sb,
return err;
}
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
+#ifdef CONFIG_FS_ENCRYPTION
static int uuid_is_zero(__u8 u[16])
{
int i;
@@ -301,6 +301,7 @@ static int ext4_ioctl_setflags(struct inode *inode,
struct ext4_iloc iloc;
unsigned int oldflags, mask, i;
unsigned int jflag;
+ struct super_block *sb = inode->i_sb;
/* Is it quota file? Do not allow user to mess with it */
if (ext4_is_quota_file(inode))
@@ -345,6 +346,23 @@ static int ext4_ioctl_setflags(struct inode *inode,
goto flags_out;
}
+ if ((flags ^ oldflags) & EXT4_CASEFOLD_FL) {
+ if (!ext4_has_feature_casefold(sb)) {
+ err = -EOPNOTSUPP;
+ goto flags_out;
+ }
+
+ if (!S_ISDIR(inode->i_mode)) {
+ err = -ENOTDIR;
+ goto flags_out;
+ }
+
+ if (!ext4_empty_dir(inode)) {
+ err = -ENOTEMPTY;
+ goto flags_out;
+ }
+ }
+
/*
* Wait for all pending directio and then flush all the dirty pages
* for this file. The flush marks all the pages readonly, so any
@@ -1073,7 +1091,7 @@ long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
return fscrypt_ioctl_set_policy(filp, (const void __user *)arg);
case EXT4_IOC_GET_ENCRYPTION_PWSALT: {
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
+#ifdef CONFIG_FS_ENCRYPTION
int err, err2;
struct ext4_sb_info *sbi = EXT4_SB(sb);
handle_t *handle;
@@ -1116,8 +1134,40 @@ long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
#endif
}
case EXT4_IOC_GET_ENCRYPTION_POLICY:
+ if (!ext4_has_feature_encrypt(sb))
+ return -EOPNOTSUPP;
return fscrypt_ioctl_get_policy(filp, (void __user *)arg);
+ case FS_IOC_GET_ENCRYPTION_POLICY_EX:
+ if (!ext4_has_feature_encrypt(sb))
+ return -EOPNOTSUPP;
+ return fscrypt_ioctl_get_policy_ex(filp, (void __user *)arg);
+
+ case FS_IOC_ADD_ENCRYPTION_KEY:
+ if (!ext4_has_feature_encrypt(sb))
+ return -EOPNOTSUPP;
+ return fscrypt_ioctl_add_key(filp, (void __user *)arg);
+
+ case FS_IOC_REMOVE_ENCRYPTION_KEY:
+ if (!ext4_has_feature_encrypt(sb))
+ return -EOPNOTSUPP;
+ return fscrypt_ioctl_remove_key(filp, (void __user *)arg);
+
+ case FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS:
+ if (!ext4_has_feature_encrypt(sb))
+ return -EOPNOTSUPP;
+ return fscrypt_ioctl_remove_key_all_users(filp,
+ (void __user *)arg);
+ case FS_IOC_GET_ENCRYPTION_KEY_STATUS:
+ if (!ext4_has_feature_encrypt(sb))
+ return -EOPNOTSUPP;
+ return fscrypt_ioctl_get_key_status(filp, (void __user *)arg);
+
+ case FS_IOC_GET_ENCRYPTION_NONCE:
+ if (!ext4_has_feature_encrypt(sb))
+ return -EOPNOTSUPP;
+ return fscrypt_ioctl_get_nonce(filp, (void __user *)arg);
+
case EXT4_IOC_FSGETXATTR:
{
struct fsxattr fa;
@@ -1179,6 +1229,17 @@ long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
}
case EXT4_IOC_SHUTDOWN:
return ext4_shutdown(sb, arg);
+
+ case FS_IOC_ENABLE_VERITY:
+ if (!ext4_has_feature_verity(sb))
+ return -EOPNOTSUPP;
+ return fsverity_ioctl_enable(filp, (const void __user *)arg);
+
+ case FS_IOC_MEASURE_VERITY:
+ if (!ext4_has_feature_verity(sb))
+ return -EOPNOTSUPP;
+ return fsverity_ioctl_measure(filp, (void __user *)arg);
+
default:
return -ENOTTY;
}
@@ -1239,8 +1300,18 @@ long ext4_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
case EXT4_IOC_SET_ENCRYPTION_POLICY:
case EXT4_IOC_GET_ENCRYPTION_PWSALT:
case EXT4_IOC_GET_ENCRYPTION_POLICY:
+ case FS_IOC_GET_ENCRYPTION_POLICY_EX:
+ case FS_IOC_ADD_ENCRYPTION_KEY:
+ case FS_IOC_REMOVE_ENCRYPTION_KEY:
+ case FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS:
+ case FS_IOC_GET_ENCRYPTION_KEY_STATUS:
+ case FS_IOC_GET_ENCRYPTION_NONCE:
case EXT4_IOC_SHUTDOWN:
case FS_IOC_GETFSMAP:
+ case FS_IOC_ENABLE_VERITY:
+ case FS_IOC_MEASURE_VERITY:
+ case EXT4_IOC_FSGETXATTR:
+ case EXT4_IOC_FSSETXATTR:
break;
default:
return -ENOIOCTLCMD;
diff --git a/fs/ext4/move_extent.c b/fs/ext4/move_extent.c
index 287631b..c7ded4e2 100644
--- a/fs/ext4/move_extent.c
+++ b/fs/ext4/move_extent.c
@@ -593,8 +593,7 @@ ext4_move_extents(struct file *o_filp, struct file *d_filp, __u64 orig_blk,
return -EOPNOTSUPP;
}
- if (ext4_encrypted_inode(orig_inode) ||
- ext4_encrypted_inode(donor_inode)) {
+ if (IS_ENCRYPTED(orig_inode) || IS_ENCRYPTED(donor_inode)) {
ext4_msg(orig_inode->i_sb, KERN_ERR,
"Online defrag not supported for encrypted files");
return -EOPNOTSUPP;
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 797fe41..4e4ef32 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -35,6 +35,7 @@
#include <linux/buffer_head.h>
#include <linux/bio.h>
#include <linux/iversion.h>
+#include <linux/unicode.h>
#include "ext4.h"
#include "ext4_jbd2.h"
@@ -276,9 +277,11 @@ static int dx_make_map(struct inode *dir, struct ext4_dir_entry_2 *de,
unsigned blocksize, struct dx_hash_info *hinfo,
struct dx_map_entry map[]);
static void dx_sort_map(struct dx_map_entry *map, unsigned count);
-static struct ext4_dir_entry_2 *dx_move_dirents(char *from, char *to,
- struct dx_map_entry *offsets, int count, unsigned blocksize);
-static struct ext4_dir_entry_2* dx_pack_dirents(char *base, unsigned blocksize);
+static struct ext4_dir_entry_2 *dx_move_dirents(struct inode *dir, char *from,
+ char *to, struct dx_map_entry *offsets,
+ int count, unsigned int blocksize);
+static struct ext4_dir_entry_2 *dx_pack_dirents(struct inode *dir, char *base,
+ unsigned int blocksize);
static void dx_insert_block(struct dx_frame *frame,
u32 hash, ext4_lblk_t block);
static int ext4_htree_next_block(struct inode *dir, __u32 hash,
@@ -287,7 +290,7 @@ static int ext4_htree_next_block(struct inode *dir, __u32 hash,
__u32 *start_hash);
static struct buffer_head * ext4_dx_find_entry(struct inode *dir,
struct ext4_filename *fname,
- struct ext4_dir_entry_2 **res_dir);
+ struct ext4_dir_entry_2 **res_dir, ext4_lblk_t *lblk);
static int ext4_dx_add_entry(handle_t *handle, struct ext4_filename *fname,
struct inode *dir, struct inode *inode);
@@ -569,8 +572,9 @@ static inline void dx_set_limit(struct dx_entry *entries, unsigned value)
static inline unsigned dx_root_limit(struct inode *dir, unsigned infosize)
{
- unsigned entry_space = dir->i_sb->s_blocksize - EXT4_DIR_REC_LEN(1) -
- EXT4_DIR_REC_LEN(2) - infosize;
+ unsigned int entry_space = dir->i_sb->s_blocksize -
+ ext4_dir_rec_len(1, NULL) -
+ ext4_dir_rec_len(2, NULL) - infosize;
if (ext4_has_metadata_csum(dir->i_sb))
entry_space -= sizeof(struct dx_tail);
@@ -579,7 +583,8 @@ static inline unsigned dx_root_limit(struct inode *dir, unsigned infosize)
static inline unsigned dx_node_limit(struct inode *dir)
{
- unsigned entry_space = dir->i_sb->s_blocksize - EXT4_DIR_REC_LEN(0);
+ unsigned int entry_space = dir->i_sb->s_blocksize -
+ ext4_dir_rec_len(0, dir);
if (ext4_has_metadata_csum(dir->i_sb))
entry_space -= sizeof(struct dx_tail);
@@ -625,7 +630,7 @@ static struct stats dx_show_leaf(struct inode *dir,
{
if (show_names)
{
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
+#ifdef CONFIG_FS_ENCRYPTION
int len;
char *name;
struct fscrypt_str fname_crypto_str =
@@ -634,7 +639,7 @@ static struct stats dx_show_leaf(struct inode *dir,
name = de->name;
len = de->name_len;
- if (ext4_encrypted_inode(dir))
+ if (IS_ENCRYPTED(dir))
res = fscrypt_get_encryption_info(dir);
if (res) {
printk(KERN_WARNING "Error setting up"
@@ -642,7 +647,7 @@ static struct stats dx_show_leaf(struct inode *dir,
}
if (!fscrypt_has_encryption_key(dir)) {
/* Directory is not encrypted */
- ext4fs_dirhash(de->name,
+ ext4fs_dirhash(dir, de->name,
de->name_len, &h);
printk("%*.s:(U)%x.%u ", len,
name, h.hash,
@@ -675,8 +680,11 @@ static struct stats dx_show_leaf(struct inode *dir,
name = fname_crypto_str.name;
len = fname_crypto_str.len;
}
- ext4fs_dirhash(de->name, de->name_len,
- &h);
+ if (IS_CASEFOLDED(dir))
+ h.hash = EXT4_DIRENT_HASH(de);
+ else
+ ext4fs_dirhash(dir, de->name,
+ de->name_len, &h);
printk("%*.s:(E)%x.%u ", len, name,
h.hash, (unsigned) ((char *) de
- base));
@@ -686,12 +694,12 @@ static struct stats dx_show_leaf(struct inode *dir,
#else
int len = de->name_len;
char *name = de->name;
- ext4fs_dirhash(de->name, de->name_len, &h);
+ ext4fs_dirhash(dir, de->name, de->name_len, &h);
printk("%*.s:%x.%u ", len, name, h.hash,
(unsigned) ((char *) de - base));
#endif
}
- space += EXT4_DIR_REC_LEN(de->name_len);
+ space += ext4_dir_rec_len(de->name_len, dir);
names++;
}
de = ext4_next_entry(de, size);
@@ -763,19 +771,35 @@ dx_probe(struct ext4_filename *fname, struct inode *dir,
root = (struct dx_root *) frame->bh->b_data;
if (root->info.hash_version != DX_HASH_TEA &&
root->info.hash_version != DX_HASH_HALF_MD4 &&
- root->info.hash_version != DX_HASH_LEGACY) {
+ root->info.hash_version != DX_HASH_LEGACY &&
+ root->info.hash_version != DX_HASH_SIPHASH) {
ext4_warning_inode(dir, "Unrecognised inode hash code %u",
root->info.hash_version);
goto fail;
}
+ if (ext4_hash_in_dirent(dir)) {
+ if (root->info.hash_version != DX_HASH_SIPHASH) {
+ ext4_warning_inode(dir,
+ "Hash in dirent, but hash is not SIPHASH");
+ goto fail;
+ }
+ } else {
+ if (root->info.hash_version == DX_HASH_SIPHASH) {
+ ext4_warning_inode(dir,
+ "Hash code is SIPHASH, but hash not in dirent");
+ goto fail;
+ }
+ }
if (fname)
hinfo = &fname->hinfo;
hinfo->hash_version = root->info.hash_version;
if (hinfo->hash_version <= DX_HASH_TEA)
hinfo->hash_version += EXT4_SB(dir->i_sb)->s_hash_unsigned;
hinfo->seed = EXT4_SB(dir->i_sb)->s_hash_seed;
- if (fname && fname_name(fname))
- ext4fs_dirhash(fname_name(fname), fname_len(fname), hinfo);
+ /* hash is already computed for encrypted casefolded directory */
+ if (fname && fname_name(fname) &&
+ !(IS_ENCRYPTED(dir) && IS_CASEFOLDED(dir)))
+ ext4fs_dirhash(dir, fname_name(fname), fname_len(fname), hinfo);
hash = hinfo->hash;
if (root->info.unused_flags & 1) {
@@ -989,6 +1013,7 @@ static int htree_dirblock_to_tree(struct file *dir_file,
struct ext4_dir_entry_2 *de, *top;
int err = 0, count = 0;
struct fscrypt_str fname_crypto_str = FSTR_INIT(NULL, 0), tmp_str;
+ int csum = ext4_has_metadata_csum(dir->i_sb);
dxtrace(printk(KERN_INFO "In htree dirblock_to_tree: block %lu\n",
(unsigned long)block));
@@ -997,12 +1022,14 @@ static int htree_dirblock_to_tree(struct file *dir_file,
return PTR_ERR(bh);
de = (struct ext4_dir_entry_2 *) bh->b_data;
+ /* csum entries are not larger in the casefolded encrypted case */
top = (struct ext4_dir_entry_2 *) ((char *) de +
dir->i_sb->s_blocksize -
- EXT4_DIR_REC_LEN(0));
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
+ ext4_dir_rec_len(0,
+ csum ? NULL : dir));
+#ifdef CONFIG_FS_ENCRYPTION
/* Check if the directory is encrypted */
- if (ext4_encrypted_inode(dir)) {
+ if (IS_ENCRYPTED(dir)) {
err = fscrypt_get_encryption_info(dir);
if (err < 0) {
brelse(bh);
@@ -1018,20 +1045,30 @@ static int htree_dirblock_to_tree(struct file *dir_file,
#endif
for (; de < top; de = ext4_next_entry(de, dir->i_sb->s_blocksize)) {
if (ext4_check_dir_entry(dir, NULL, de, bh,
- bh->b_data, bh->b_size,
+ bh->b_data, bh->b_size, block,
(block<<EXT4_BLOCK_SIZE_BITS(dir->i_sb))
+ ((char *)de - bh->b_data))) {
/* silently ignore the rest of the block */
break;
}
- ext4fs_dirhash(de->name, de->name_len, hinfo);
+ if (ext4_hash_in_dirent(dir)) {
+ if (de->name_len && de->inode) {
+ hinfo->hash = EXT4_DIRENT_HASH(de);
+ hinfo->minor_hash = EXT4_DIRENT_MINOR_HASH(de);
+ } else {
+ hinfo->hash = 0;
+ hinfo->minor_hash = 0;
+ }
+ } else {
+ ext4fs_dirhash(dir, de->name, de->name_len, hinfo);
+ }
if ((hinfo->hash < start_hash) ||
((hinfo->hash == start_hash) &&
(hinfo->minor_hash < start_minor_hash)))
continue;
if (de->inode == 0)
continue;
- if (!ext4_encrypted_inode(dir)) {
+ if (!IS_ENCRYPTED(dir)) {
tmp_str.name = de->name;
tmp_str.len = de->name_len;
err = ext4_htree_store_dirent(dir_file,
@@ -1063,7 +1100,7 @@ static int htree_dirblock_to_tree(struct file *dir_file,
}
errout:
brelse(bh);
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
+#ifdef CONFIG_FS_ENCRYPTION
fscrypt_fname_free_buffer(&fname_crypto_str);
#endif
return count;
@@ -1095,7 +1132,11 @@ int ext4_htree_fill_tree(struct file *dir_file, __u32 start_hash,
start_hash, start_minor_hash));
dir = file_inode(dir_file);
if (!(ext4_test_inode_flag(dir, EXT4_INODE_INDEX))) {
- hinfo.hash_version = EXT4_SB(dir->i_sb)->s_def_hash_version;
+ if (ext4_hash_in_dirent(dir))
+ hinfo.hash_version = DX_HASH_SIPHASH;
+ else
+ hinfo.hash_version =
+ EXT4_SB(dir->i_sb)->s_def_hash_version;
if (hinfo.hash_version <= DX_HASH_TEA)
hinfo.hash_version +=
EXT4_SB(dir->i_sb)->s_hash_unsigned;
@@ -1188,11 +1229,12 @@ int ext4_htree_fill_tree(struct file *dir_file, __u32 start_hash,
static inline int search_dirblock(struct buffer_head *bh,
struct inode *dir,
struct ext4_filename *fname,
+ ext4_lblk_t lblk,
unsigned int offset,
struct ext4_dir_entry_2 **res_dir)
{
return ext4_search_dir(bh, bh->b_data, dir->i_sb->s_blocksize, dir,
- fname, offset, res_dir);
+ fname, lblk, offset, res_dir);
}
/*
@@ -1213,7 +1255,10 @@ static int dx_make_map(struct inode *dir, struct ext4_dir_entry_2 *de,
while ((char *) de < base + blocksize) {
if (de->name_len && de->inode) {
- ext4fs_dirhash(de->name, de->name_len, &h);
+ if (ext4_hash_in_dirent(dir))
+ h.hash = EXT4_DIRENT_HASH(de);
+ else
+ ext4fs_dirhash(dir, de->name, de->name_len, &h);
map_tail--;
map_tail->hash = h.hash;
map_tail->offs = ((char *) de - base)>>2;
@@ -1268,13 +1313,104 @@ static void dx_insert_block(struct dx_frame *frame, u32 hash, ext4_lblk_t block)
dx_set_count(entries, count + 1);
}
+#ifdef CONFIG_UNICODE
+/*
+ * Test whether a case-insensitive directory entry matches the filename
+ * being searched for. If quick is set, assume the name being looked up
+ * is already in the casefolded form.
+ *
+ * Returns: 0 if the directory entry matches, more than 0 if it
+ * doesn't match or less than zero on error.
+ */
+static int ext4_ci_compare(const struct inode *parent, const struct qstr *name,
+ u8 *de_name, size_t de_name_len, bool quick)
+{
+ const struct super_block *sb = parent->i_sb;
+ const struct unicode_map *um = sb->s_encoding;
+ struct fscrypt_str decrypted_name = FSTR_INIT(NULL, de_name_len);
+ struct qstr entry = QSTR_INIT(de_name, de_name_len);
+ int ret;
+
+ if (IS_ENCRYPTED(parent)) {
+ const struct fscrypt_str encrypted_name =
+ FSTR_INIT(de_name, de_name_len);
+
+ decrypted_name.name = kmalloc(de_name_len, GFP_KERNEL);
+ if (!decrypted_name.name)
+ return -ENOMEM;
+ ret = fscrypt_fname_disk_to_usr(parent, 0, 0, &encrypted_name,
+ &decrypted_name);
+ if (ret < 0)
+ goto out;
+ entry.name = decrypted_name.name;
+ entry.len = decrypted_name.len;
+ }
+
+ if (quick)
+ ret = utf8_strncasecmp_folded(um, name, &entry);
+ else
+ ret = utf8_strncasecmp(um, name, &entry);
+ if (ret < 0) {
+ /* Handle invalid character sequence as either an error
+ * or as an opaque byte sequence.
+ */
+ if (sb_has_enc_strict_mode(sb))
+ ret = -EINVAL;
+ else if (name->len != entry.len)
+ ret = 1;
+ else
+ ret = !!memcmp(name->name, entry.name, entry.len);
+ }
+out:
+ kfree(decrypted_name.name);
+ return ret;
+}
+
+int ext4_fname_setup_ci_filename(struct inode *dir, const struct qstr *iname,
+ struct ext4_filename *name)
+{
+ struct fscrypt_str *cf_name = &name->cf_name;
+ struct dx_hash_info *hinfo = &name->hinfo;
+ int len;
+
+ if (!needs_casefold(dir)) {
+ cf_name->name = NULL;
+ return 0;
+ }
+
+ cf_name->name = kmalloc(EXT4_NAME_LEN, GFP_NOFS);
+ if (!cf_name->name)
+ return -ENOMEM;
+
+ len = utf8_casefold(dir->i_sb->s_encoding,
+ iname, cf_name->name,
+ EXT4_NAME_LEN);
+ if (len <= 0) {
+ kfree(cf_name->name);
+ cf_name->name = NULL;
+ }
+ cf_name->len = (unsigned) len;
+ if (!IS_ENCRYPTED(dir))
+ return 0;
+
+ hinfo->hash_version = DX_HASH_SIPHASH;
+ hinfo->seed = NULL;
+ if (cf_name->name)
+ ext4fs_dirhash(dir, cf_name->name, cf_name->len, hinfo);
+ else
+ ext4fs_dirhash(dir, iname->name, iname->len, hinfo);
+ return 0;
+}
+#endif
+
/*
* Test whether a directory entry matches the filename being searched for.
*
* Return: %true if the directory entry matches, otherwise %false.
*/
-static inline bool ext4_match(const struct ext4_filename *fname,
- const struct ext4_dir_entry_2 *de)
+static bool ext4_match(struct inode *parent,
+ const struct ext4_filename *fname,
+ struct ext4_dir_entry_2 *de)
{
struct fscrypt_name f;
@@ -1283,9 +1419,31 @@ static inline bool ext4_match(const struct ext4_filename *fname,
f.usr_fname = fname->usr_fname;
f.disk_name = fname->disk_name;
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
+#ifdef CONFIG_FS_ENCRYPTION
f.crypto_buf = fname->crypto_buf;
#endif
+
+#ifdef CONFIG_UNICODE
+ if (needs_casefold(parent)) {
+ if (fname->cf_name.name) {
+ struct qstr cf = {.name = fname->cf_name.name,
+ .len = fname->cf_name.len};
+ if (IS_ENCRYPTED(parent)) {
+ if (fname->hinfo.hash != EXT4_DIRENT_HASH(de) ||
+ fname->hinfo.minor_hash !=
+ EXT4_DIRENT_MINOR_HASH(de)) {
+
+ return 0;
+ }
+ }
+ return !ext4_ci_compare(parent, &cf, de->name,
+ de->name_len, true);
+ }
+ return !ext4_ci_compare(parent, fname->usr_fname, de->name,
+ de->name_len, false);
+ }
+#endif
+
return fscrypt_match_name(&f, de->name, de->name_len);
}
@@ -1294,7 +1452,8 @@ static inline bool ext4_match(const struct ext4_filename *fname,
*/
int ext4_search_dir(struct buffer_head *bh, char *search_buf, int buf_size,
struct inode *dir, struct ext4_filename *fname,
- unsigned int offset, struct ext4_dir_entry_2 **res_dir)
+ ext4_lblk_t lblk, unsigned int offset,
+ struct ext4_dir_entry_2 **res_dir)
{
struct ext4_dir_entry_2 * de;
char * dlimit;
@@ -1306,11 +1465,11 @@ int ext4_search_dir(struct buffer_head *bh, char *search_buf, int buf_size,
/* this code is executed quadratically often */
/* do minimal checking `by hand' */
if ((char *) de + de->name_len <= dlimit &&
- ext4_match(fname, de)) {
+ ext4_match(dir, fname, de)) {
/* found a match - just to be sure, do
* a full check */
if (ext4_check_dir_entry(dir, NULL, de, bh, search_buf,
- buf_size, offset))
+ buf_size, lblk, offset))
return -1;
*res_dir = de;
return 1;
@@ -1356,7 +1515,7 @@ static int is_dx_internal_node(struct inode *dir, ext4_lblk_t block,
static struct buffer_head *__ext4_find_entry(struct inode *dir,
struct ext4_filename *fname,
struct ext4_dir_entry_2 **res_dir,
- int *inlined)
+ int *inlined, ext4_lblk_t *lblk)
{
struct super_block *sb;
struct buffer_head *bh_use[NAMEI_RA_SIZE];
@@ -1380,6 +1539,8 @@ static struct buffer_head *__ext4_find_entry(struct inode *dir,
int has_inline_data = 1;
ret = ext4_find_inline_entry(dir, fname, res_dir,
&has_inline_data);
+ if (lblk)
+ *lblk = 0;
if (has_inline_data) {
if (inlined)
*inlined = 1;
@@ -1398,7 +1559,7 @@ static struct buffer_head *__ext4_find_entry(struct inode *dir,
goto restart;
}
if (is_dx(dir)) {
- ret = ext4_dx_find_entry(dir, fname, res_dir);
+ ret = ext4_dx_find_entry(dir, fname, res_dir, lblk);
/*
* On success, or if the error was file not found,
* return. Otherwise, fall back to doing a search the
@@ -1463,9 +1624,11 @@ static struct buffer_head *__ext4_find_entry(struct inode *dir,
goto cleanup_and_exit;
}
set_buffer_verified(bh);
- i = search_dirblock(bh, dir, fname,
+ i = search_dirblock(bh, dir, fname, block,
block << EXT4_BLOCK_SIZE_BITS(sb), res_dir);
if (i == 1) {
+ if (lblk)
+ *lblk = block;
EXT4_I(dir)->i_dir_start_lookup = block;
ret = bh;
goto cleanup_and_exit;
@@ -1500,7 +1663,7 @@ static struct buffer_head *__ext4_find_entry(struct inode *dir,
static struct buffer_head *ext4_find_entry(struct inode *dir,
const struct qstr *d_name,
struct ext4_dir_entry_2 **res_dir,
- int *inlined)
+ int *inlined, ext4_lblk_t *lblk)
{
int err;
struct ext4_filename fname;
@@ -1512,7 +1675,7 @@ static struct buffer_head *ext4_find_entry(struct inode *dir,
if (err)
return ERR_PTR(err);
- bh = __ext4_find_entry(dir, &fname, res_dir, inlined);
+ bh = __ext4_find_entry(dir, &fname, res_dir, inlined, lblk);
ext4_fname_free_filename(&fname);
return bh;
@@ -1527,12 +1690,13 @@ static struct buffer_head *ext4_lookup_entry(struct inode *dir,
struct buffer_head *bh;
err = ext4_fname_prepare_lookup(dir, dentry, &fname);
+ generic_set_encrypted_ci_d_ops(dir, dentry);
if (err == -ENOENT)
return NULL;
if (err)
return ERR_PTR(err);
- bh = __ext4_find_entry(dir, &fname, res_dir, NULL);
+ bh = __ext4_find_entry(dir, &fname, res_dir, NULL, NULL);
ext4_fname_free_filename(&fname);
return bh;
@@ -1540,7 +1704,7 @@ static struct buffer_head *ext4_lookup_entry(struct inode *dir,
static struct buffer_head * ext4_dx_find_entry(struct inode *dir,
struct ext4_filename *fname,
- struct ext4_dir_entry_2 **res_dir)
+ struct ext4_dir_entry_2 **res_dir, ext4_lblk_t *lblk)
{
struct super_block * sb = dir->i_sb;
struct dx_frame frames[EXT4_HTREE_LEVEL], *frame;
@@ -1548,7 +1712,7 @@ static struct buffer_head * ext4_dx_find_entry(struct inode *dir,
ext4_lblk_t block;
int retval;
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
+#ifdef CONFIG_FS_ENCRYPTION
*res_dir = NULL;
#endif
frame = dx_probe(fname, dir, NULL, frames);
@@ -1556,11 +1720,13 @@ static struct buffer_head * ext4_dx_find_entry(struct inode *dir,
return (struct buffer_head *) frame;
do {
block = dx_get_block(frame->at);
+ if (lblk)
+ *lblk = block;
bh = ext4_read_dirblock(dir, block, DIRENT_HTREE);
if (IS_ERR(bh))
goto errout;
- retval = search_dirblock(bh, dir, fname,
+ retval = search_dirblock(bh, dir, fname, block,
block << EXT4_BLOCK_SIZE_BITS(sb),
res_dir);
if (retval == 1)
@@ -1623,7 +1789,7 @@ static struct dentry *ext4_lookup(struct inode *dir, struct dentry *dentry, unsi
ino);
return ERR_PTR(-EFSCORRUPTED);
}
- if (!IS_ERR(inode) && ext4_encrypted_inode(dir) &&
+ if (!IS_ERR(inode) && IS_ENCRYPTED(dir) &&
(S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)) &&
!fscrypt_has_permitted_context(dir, inode)) {
ext4_warning(inode->i_sb,
@@ -1633,6 +1799,17 @@ static struct dentry *ext4_lookup(struct inode *dir, struct dentry *dentry, unsi
return ERR_PTR(-EPERM);
}
}
+
+#ifdef CONFIG_UNICODE
+ if (!inode && IS_CASEFOLDED(dir)) {
+ /* Eventually we want to call d_add_ci(dentry, NULL)
+ * for negative dentries in the encoding case as
+ * well. For now, prevent the negative dentry
+ * from being cached.
+ */
+ return NULL;
+ }
+#endif
return d_splice_alias(inode, dentry);
}
@@ -1644,7 +1821,7 @@ struct dentry *ext4_get_parent(struct dentry *child)
struct ext4_dir_entry_2 * de;
struct buffer_head *bh;
- bh = ext4_find_entry(d_inode(child), &dotdot, &de, NULL);
+ bh = ext4_find_entry(d_inode(child), &dotdot, &de, NULL, NULL);
if (IS_ERR(bh))
return (struct dentry *) bh;
if (!bh)
@@ -1666,7 +1843,8 @@ struct dentry *ext4_get_parent(struct dentry *child)
* Returns pointer to last entry moved.
*/
static struct ext4_dir_entry_2 *
-dx_move_dirents(char *from, char *to, struct dx_map_entry *map, int count,
+dx_move_dirents(struct inode *dir, char *from, char *to,
+ struct dx_map_entry *map, int count,
unsigned blocksize)
{
unsigned rec_len = 0;
@@ -1674,7 +1852,8 @@ dx_move_dirents(char *from, char *to, struct dx_map_entry *map, int count,
while (count--) {
struct ext4_dir_entry_2 *de = (struct ext4_dir_entry_2 *)
(from + (map->offs<<2));
- rec_len = EXT4_DIR_REC_LEN(de->name_len);
+ rec_len = ext4_dir_rec_len(de->name_len, dir);
+
memcpy (to, de, rec_len);
((struct ext4_dir_entry_2 *) to)->rec_len =
ext4_rec_len_to_disk(rec_len, blocksize);
@@ -1689,7 +1868,8 @@ dx_move_dirents(char *from, char *to, struct dx_map_entry *map, int count,
* Compact each dir entry in the range to the minimal rec_len.
* Returns pointer to last entry in range.
*/
-static struct ext4_dir_entry_2* dx_pack_dirents(char *base, unsigned blocksize)
+static struct ext4_dir_entry_2 *dx_pack_dirents(struct inode *dir, char *base,
+ unsigned int blocksize)
{
struct ext4_dir_entry_2 *next, *to, *prev, *de = (struct ext4_dir_entry_2 *) base;
unsigned rec_len = 0;
@@ -1698,7 +1878,7 @@ static struct ext4_dir_entry_2* dx_pack_dirents(char *base, unsigned blocksize)
while ((char*)de < base + blocksize) {
next = ext4_next_entry(de, blocksize);
if (de->inode && de->name_len) {
- rec_len = EXT4_DIR_REC_LEN(de->name_len);
+ rec_len = ext4_dir_rec_len(de->name_len, dir);
if (de > to)
memmove(to, de, rec_len);
to->rec_len = ext4_rec_len_to_disk(rec_len, blocksize);
@@ -1716,13 +1896,12 @@ static struct ext4_dir_entry_2* dx_pack_dirents(char *base, unsigned blocksize)
* Returns pointer to de in block into which the new entry will be inserted.
*/
static struct ext4_dir_entry_2 *do_split(handle_t *handle, struct inode *dir,
- struct buffer_head **bh,struct dx_frame *frame,
- struct dx_hash_info *hinfo)
+ struct buffer_head **bh, struct dx_frame *frame,
+ struct dx_hash_info *hinfo, ext4_lblk_t *newblock)
{
unsigned blocksize = dir->i_sb->s_blocksize;
unsigned count, continued;
struct buffer_head *bh2;
- ext4_lblk_t newblock;
u32 hash2;
struct dx_map_entry *map;
char *data1 = (*bh)->b_data, *data2;
@@ -1735,7 +1914,7 @@ static struct ext4_dir_entry_2 *do_split(handle_t *handle, struct inode *dir,
if (ext4_has_metadata_csum(dir->i_sb))
csum_size = sizeof(struct ext4_dir_entry_tail);
- bh2 = ext4_append(handle, dir, &newblock);
+ bh2 = ext4_append(handle, dir, newblock);
if (IS_ERR(bh2)) {
brelse(*bh);
*bh = NULL;
@@ -1789,9 +1968,9 @@ static struct ext4_dir_entry_2 *do_split(handle_t *handle, struct inode *dir,
hash2, split, count-split));
/* Fancy dance to stay within two buffers */
- de2 = dx_move_dirents(data1, data2, map + split, count - split,
+ de2 = dx_move_dirents(dir, data1, data2, map + split, count - split,
blocksize);
- de = dx_pack_dirents(data1, blocksize);
+ de = dx_pack_dirents(dir, data1, blocksize);
de->rec_len = ext4_rec_len_to_disk(data1 + (blocksize - csum_size) -
(char *) de,
blocksize);
@@ -1816,7 +1995,7 @@ static struct ext4_dir_entry_2 *do_split(handle_t *handle, struct inode *dir,
swap(*bh, bh2);
de = de2;
}
- dx_insert_block(frame, hash2 + continued, newblock);
+ dx_insert_block(frame, hash2 + continued, *newblock);
err = ext4_handle_dirty_dirent_node(handle, dir, bh2);
if (err)
goto journal_error;
@@ -1836,13 +2015,14 @@ static struct ext4_dir_entry_2 *do_split(handle_t *handle, struct inode *dir,
}
int ext4_find_dest_de(struct inode *dir, struct inode *inode,
+ ext4_lblk_t lblk,
struct buffer_head *bh,
void *buf, int buf_size,
struct ext4_filename *fname,
struct ext4_dir_entry_2 **dest_de)
{
struct ext4_dir_entry_2 *de;
- unsigned short reclen = EXT4_DIR_REC_LEN(fname_len(fname));
+ unsigned short reclen = ext4_dir_rec_len(fname_len(fname), dir);
int nlen, rlen;
unsigned int offset = 0;
char *top;
@@ -1851,11 +2031,11 @@ int ext4_find_dest_de(struct inode *dir, struct inode *inode,
top = buf + buf_size - reclen;
while ((char *) de <= top) {
if (ext4_check_dir_entry(dir, NULL, de, bh,
- buf, buf_size, offset))
+ buf, buf_size, lblk, offset))
return -EFSCORRUPTED;
- if (ext4_match(fname, de))
+ if (ext4_match(dir, fname, de))
return -EEXIST;
- nlen = EXT4_DIR_REC_LEN(de->name_len);
+ nlen = ext4_dir_rec_len(de->name_len, dir);
rlen = ext4_rec_len_from_disk(de->rec_len, buf_size);
if ((de->inode ? rlen - nlen : rlen) >= reclen)
break;
@@ -1869,7 +2049,8 @@ int ext4_find_dest_de(struct inode *dir, struct inode *inode,
return 0;
}
-void ext4_insert_dentry(struct inode *inode,
+void ext4_insert_dentry(struct inode *dir,
+ struct inode *inode,
struct ext4_dir_entry_2 *de,
int buf_size,
struct ext4_filename *fname)
@@ -1877,7 +2058,7 @@ void ext4_insert_dentry(struct inode *inode,
int nlen, rlen;
- nlen = EXT4_DIR_REC_LEN(de->name_len);
+ nlen = ext4_dir_rec_len(de->name_len, dir);
rlen = ext4_rec_len_from_disk(de->rec_len, buf_size);
if (de->inode) {
struct ext4_dir_entry_2 *de1 =
@@ -1891,6 +2072,13 @@ void ext4_insert_dentry(struct inode *inode,
ext4_set_de_type(inode->i_sb, de, inode->i_mode);
de->name_len = fname_len(fname);
memcpy(de->name, fname_name(fname), fname_len(fname));
+ if (ext4_hash_in_dirent(dir)) {
+ struct dx_hash_info *hinfo = &fname->hinfo;
+
+ EXT4_DIRENT_HASHES(de)->hash = cpu_to_le32(hinfo->hash);
+ EXT4_DIRENT_HASHES(de)->minor_hash =
+ cpu_to_le32(hinfo->minor_hash);
+ }
}
/*
@@ -1904,6 +2092,7 @@ void ext4_insert_dentry(struct inode *inode,
static int add_dirent_to_buf(handle_t *handle, struct ext4_filename *fname,
struct inode *dir,
struct inode *inode, struct ext4_dir_entry_2 *de,
+ ext4_lblk_t blk,
struct buffer_head *bh)
{
unsigned int blocksize = dir->i_sb->s_blocksize;
@@ -1914,7 +2103,7 @@ static int add_dirent_to_buf(handle_t *handle, struct ext4_filename *fname,
csum_size = sizeof(struct ext4_dir_entry_tail);
if (!de) {
- err = ext4_find_dest_de(dir, inode, bh, bh->b_data,
+ err = ext4_find_dest_de(dir, inode, blk, bh, bh->b_data,
blocksize - csum_size, fname, &de);
if (err)
return err;
@@ -1927,7 +2116,7 @@ static int add_dirent_to_buf(handle_t *handle, struct ext4_filename *fname,
}
/* By now the buffer is marked for journaling */
- ext4_insert_dentry(inode, de, blocksize, fname);
+ ext4_insert_dentry(dir, inode, de, blocksize, fname);
/*
* XXX shouldn't update any times until successful
@@ -2023,11 +2212,16 @@ static int make_indexed_dir(handle_t *handle, struct ext4_filename *fname,
/* Initialize the root; the dot dirents already exist */
de = (struct ext4_dir_entry_2 *) (&root->dotdot);
- de->rec_len = ext4_rec_len_to_disk(blocksize - EXT4_DIR_REC_LEN(2),
- blocksize);
+ de->rec_len = ext4_rec_len_to_disk(
+ blocksize - ext4_dir_rec_len(2, NULL), blocksize);
memset (&root->info, 0, sizeof(root->info));
root->info.info_length = sizeof(root->info);
- root->info.hash_version = EXT4_SB(dir->i_sb)->s_def_hash_version;
+ if (ext4_hash_in_dirent(dir))
+ root->info.hash_version = DX_HASH_SIPHASH;
+ else
+ root->info.hash_version =
+ EXT4_SB(dir->i_sb)->s_def_hash_version;
+
entries = root->entries;
dx_set_block(entries, 1);
dx_set_count(entries, 1);
@@ -2038,7 +2232,11 @@ static int make_indexed_dir(handle_t *handle, struct ext4_filename *fname,
if (fname->hinfo.hash_version <= DX_HASH_TEA)
fname->hinfo.hash_version += EXT4_SB(dir->i_sb)->s_hash_unsigned;
fname->hinfo.seed = EXT4_SB(dir->i_sb)->s_hash_seed;
- ext4fs_dirhash(fname_name(fname), fname_len(fname), &fname->hinfo);
+
+ /* casefolded encrypted hashes are computed on fname setup */
+ if (!ext4_hash_in_dirent(dir))
+ ext4fs_dirhash(dir, fname_name(fname),
+ fname_len(fname), &fname->hinfo);
memset(frames, 0, sizeof(frames));
frame = frames;
@@ -2053,13 +2251,13 @@ static int make_indexed_dir(handle_t *handle, struct ext4_filename *fname,
if (retval)
goto out_frames;
- de = do_split(handle,dir, &bh2, frame, &fname->hinfo);
+ de = do_split(handle, dir, &bh2, frame, &fname->hinfo, &block);
if (IS_ERR(de)) {
retval = PTR_ERR(de);
goto out_frames;
}
- retval = add_dirent_to_buf(handle, fname, dir, inode, de, bh2);
+ retval = add_dirent_to_buf(handle, fname, dir, inode, de, block, bh2);
out_frames:
/*
* Even if the block split failed, we have to properly write
@@ -2106,6 +2304,12 @@ static int ext4_add_entry(handle_t *handle, struct dentry *dentry,
if (!dentry->d_name.len)
return -EINVAL;
+#ifdef CONFIG_UNICODE
+ if (sb_has_enc_strict_mode(sb) && IS_CASEFOLDED(dir) &&
+ sb->s_encoding && utf8_validate(sb->s_encoding, &dentry->d_name))
+ return -EINVAL;
+#endif
+
if (fscrypt_is_nokey_name(dentry))
return -ENOKEY;
@@ -2152,7 +2356,7 @@ static int ext4_add_entry(handle_t *handle, struct dentry *dentry,
goto out;
}
retval = add_dirent_to_buf(handle, &fname, dir, inode,
- NULL, bh);
+ NULL, block, bh);
if (retval != -ENOSPC)
goto out;
@@ -2181,7 +2385,7 @@ static int ext4_add_entry(handle_t *handle, struct dentry *dentry,
initialize_dirent_tail(t, blocksize);
}
- retval = add_dirent_to_buf(handle, &fname, dir, inode, de, bh);
+ retval = add_dirent_to_buf(handle, &fname, dir, inode, de, block, bh);
out:
ext4_fname_free_filename(&fname);
brelse(bh);
@@ -2203,6 +2407,7 @@ static int ext4_dx_add_entry(handle_t *handle, struct ext4_filename *fname,
struct ext4_dir_entry_2 *de;
int restart;
int err;
+ ext4_lblk_t lblk;
again:
restart = 0;
@@ -2211,7 +2416,8 @@ static int ext4_dx_add_entry(handle_t *handle, struct ext4_filename *fname,
return PTR_ERR(frame);
entries = frame->entries;
at = frame->at;
- bh = ext4_read_dirblock(dir, dx_get_block(frame->at), DIRENT_HTREE);
+ lblk = dx_get_block(frame->at);
+ bh = ext4_read_dirblock(dir, lblk, DIRENT_HTREE);
if (IS_ERR(bh)) {
err = PTR_ERR(bh);
bh = NULL;
@@ -2223,7 +2429,7 @@ static int ext4_dx_add_entry(handle_t *handle, struct ext4_filename *fname,
if (err)
goto journal_error;
- err = add_dirent_to_buf(handle, fname, dir, inode, NULL, bh);
+ err = add_dirent_to_buf(handle, fname, dir, inode, NULL, lblk, bh);
if (err != -ENOSPC)
goto cleanup;
@@ -2342,12 +2548,12 @@ static int ext4_dx_add_entry(handle_t *handle, struct ext4_filename *fname,
goto journal_error;
}
}
- de = do_split(handle, dir, &bh, frame, &fname->hinfo);
+ de = do_split(handle, dir, &bh, frame, &fname->hinfo, &lblk);
if (IS_ERR(de)) {
err = PTR_ERR(de);
goto cleanup;
}
- err = add_dirent_to_buf(handle, fname, dir, inode, de, bh);
+ err = add_dirent_to_buf(handle, fname, dir, inode, de, lblk, bh);
goto cleanup;
journal_error:
@@ -2370,6 +2576,7 @@ static int ext4_dx_add_entry(handle_t *handle, struct ext4_filename *fname,
int ext4_generic_delete_entry(handle_t *handle,
struct inode *dir,
struct ext4_dir_entry_2 *de_del,
+ ext4_lblk_t lblk,
struct buffer_head *bh,
void *entry_buf,
int buf_size,
@@ -2384,7 +2591,7 @@ int ext4_generic_delete_entry(handle_t *handle,
de = (struct ext4_dir_entry_2 *)entry_buf;
while (i < buf_size - csum_size) {
if (ext4_check_dir_entry(dir, NULL, de, bh,
- entry_buf, buf_size, i))
+ entry_buf, buf_size, lblk, i))
return -EFSCORRUPTED;
if (de == de_del) {
if (pde)
@@ -2409,6 +2616,7 @@ int ext4_generic_delete_entry(handle_t *handle,
static int ext4_delete_entry(handle_t *handle,
struct inode *dir,
struct ext4_dir_entry_2 *de_del,
+ ext4_lblk_t lblk,
struct buffer_head *bh)
{
int err, csum_size = 0;
@@ -2429,7 +2637,7 @@ static int ext4_delete_entry(handle_t *handle,
if (unlikely(err))
goto out;
- err = ext4_generic_delete_entry(handle, dir, de_del,
+ err = ext4_generic_delete_entry(handle, dir, de_del, lblk,
bh, bh->b_data,
dir->i_sb->s_blocksize, csum_size);
if (err)
@@ -2612,7 +2820,7 @@ struct ext4_dir_entry_2 *ext4_init_dot_dotdot(struct inode *inode,
{
de->inode = cpu_to_le32(inode->i_ino);
de->name_len = 1;
- de->rec_len = ext4_rec_len_to_disk(EXT4_DIR_REC_LEN(de->name_len),
+ de->rec_len = ext4_rec_len_to_disk(ext4_dir_rec_len(de->name_len, NULL),
blocksize);
strcpy(de->name, ".");
ext4_set_de_type(inode->i_sb, de, S_IFDIR);
@@ -2622,11 +2830,12 @@ struct ext4_dir_entry_2 *ext4_init_dot_dotdot(struct inode *inode,
de->name_len = 2;
if (!dotdot_real_len)
de->rec_len = ext4_rec_len_to_disk(blocksize -
- (csum_size + EXT4_DIR_REC_LEN(1)),
+ (csum_size + ext4_dir_rec_len(1, NULL)),
blocksize);
else
de->rec_len = ext4_rec_len_to_disk(
- EXT4_DIR_REC_LEN(de->name_len), blocksize);
+ ext4_dir_rec_len(de->name_len, NULL),
+ blocksize);
strcpy(de->name, "..");
ext4_set_de_type(inode->i_sb, de, S_IFDIR);
@@ -2754,7 +2963,8 @@ bool ext4_empty_dir(struct inode *inode)
}
sb = inode->i_sb;
- if (inode->i_size < EXT4_DIR_REC_LEN(1) + EXT4_DIR_REC_LEN(2)) {
+ if (inode->i_size < ext4_dir_rec_len(1, NULL) +
+ ext4_dir_rec_len(2, NULL)) {
EXT4_ERROR_INODE(inode, "invalid size");
return true;
}
@@ -2766,7 +2976,7 @@ bool ext4_empty_dir(struct inode *inode)
return true;
de = (struct ext4_dir_entry_2 *) bh->b_data;
- if (ext4_check_dir_entry(inode, NULL, de, bh, bh->b_data, bh->b_size,
+ if (ext4_check_dir_entry(inode, NULL, de, bh, bh->b_data, bh->b_size, 0,
0) ||
le32_to_cpu(de->inode) != inode->i_ino || strcmp(".", de->name)) {
ext4_warning_inode(inode, "directory missing '.'");
@@ -2775,7 +2985,7 @@ bool ext4_empty_dir(struct inode *inode)
}
offset = ext4_rec_len_from_disk(de->rec_len, sb->s_blocksize);
de = ext4_next_entry(de, sb->s_blocksize);
- if (ext4_check_dir_entry(inode, NULL, de, bh, bh->b_data, bh->b_size,
+ if (ext4_check_dir_entry(inode, NULL, de, bh, bh->b_data, bh->b_size, 0,
offset) ||
le32_to_cpu(de->inode) == 0 || strcmp("..", de->name)) {
ext4_warning_inode(inode, "directory missing '..'");
@@ -2799,7 +3009,7 @@ bool ext4_empty_dir(struct inode *inode)
de = (struct ext4_dir_entry_2 *) (bh->b_data +
(offset & (sb->s_blocksize - 1)));
if (ext4_check_dir_entry(inode, NULL, de, bh,
- bh->b_data, bh->b_size, offset)) {
+ bh->b_data, bh->b_size, 0, offset)) {
offset = (offset | (sb->s_blocksize - 1)) + 1;
continue;
}
@@ -2994,6 +3204,8 @@ static int ext4_rmdir(struct inode *dir, struct dentry *dentry)
struct buffer_head *bh;
struct ext4_dir_entry_2 *de;
handle_t *handle = NULL;
+ ext4_lblk_t lblk;
+
if (unlikely(ext4_forced_shutdown(EXT4_SB(dir->i_sb))))
return -EIO;
@@ -3008,7 +3220,7 @@ static int ext4_rmdir(struct inode *dir, struct dentry *dentry)
return retval;
retval = -ENOENT;
- bh = ext4_find_entry(dir, &dentry->d_name, &de, NULL);
+ bh = ext4_find_entry(dir, &dentry->d_name, &de, NULL, &lblk);
if (IS_ERR(bh))
return PTR_ERR(bh);
if (!bh)
@@ -3035,7 +3247,7 @@ static int ext4_rmdir(struct inode *dir, struct dentry *dentry)
if (IS_DIRSYNC(dir))
ext4_handle_sync(handle);
- retval = ext4_delete_entry(handle, dir, de, bh);
+ retval = ext4_delete_entry(handle, dir, de, lblk, bh);
if (retval)
goto end_rmdir;
if (!EXT4_DIR_LINK_EMPTY(inode))
@@ -3056,6 +3268,17 @@ static int ext4_rmdir(struct inode *dir, struct dentry *dentry)
ext4_update_dx_flag(dir);
ext4_mark_inode_dirty(handle, dir);
+#ifdef CONFIG_UNICODE
+ /* VFS negative dentries are incompatible with Encoding and
+ * Case-insensitiveness. Eventually we'll want avoid
+ * invalidating the dentries here, alongside with returning the
+ * negative dentries at ext4_lookup(), when it is better
+ * supported by the VFS for the CI case.
+ */
+ if (IS_CASEFOLDED(dir))
+ d_invalidate(dentry);
+#endif
+
end_rmdir:
brelse(bh);
if (handle)
@@ -3070,6 +3293,7 @@ static int ext4_unlink(struct inode *dir, struct dentry *dentry)
struct buffer_head *bh;
struct ext4_dir_entry_2 *de;
handle_t *handle = NULL;
+ ext4_lblk_t lblk;
if (unlikely(ext4_forced_shutdown(EXT4_SB(dir->i_sb))))
return -EIO;
@@ -3085,7 +3309,7 @@ static int ext4_unlink(struct inode *dir, struct dentry *dentry)
return retval;
retval = -ENOENT;
- bh = ext4_find_entry(dir, &dentry->d_name, &de, NULL);
+ bh = ext4_find_entry(dir, &dentry->d_name, &de, NULL, &lblk);
if (IS_ERR(bh))
return PTR_ERR(bh);
if (!bh)
@@ -3108,7 +3332,7 @@ static int ext4_unlink(struct inode *dir, struct dentry *dentry)
if (IS_DIRSYNC(dir))
ext4_handle_sync(handle);
- retval = ext4_delete_entry(handle, dir, de, bh);
+ retval = ext4_delete_entry(handle, dir, de, lblk, bh);
if (retval)
goto end_unlink;
dir->i_ctime = dir->i_mtime = current_time(dir);
@@ -3124,6 +3348,17 @@ static int ext4_unlink(struct inode *dir, struct dentry *dentry)
inode->i_ctime = current_time(inode);
ext4_mark_inode_dirty(handle, inode);
+#ifdef CONFIG_UNICODE
+ /* VFS negative dentries are incompatible with Encoding and
+ * Case-insensitiveness. Eventually we'll want avoid
+ * invalidating the dentries here, alongside with returning the
+ * negative dentries at ext4_lookup(), when it is better
+ * supported by the VFS for the CI case.
+ */
+ if (IS_CASEFOLDED(dir))
+ d_invalidate(dentry);
+#endif
+
end_unlink:
brelse(bh);
if (handle)
@@ -3359,6 +3594,7 @@ struct ext4_renament {
int dir_nlink_delta;
/* entry for "dentry" */
+ ext4_lblk_t lblk;
struct buffer_head *bh;
struct ext4_dir_entry_2 *de;
int inlined;
@@ -3451,7 +3687,8 @@ static void ext4_resetent(handle_t *handle, struct ext4_renament *ent,
* so the old->de may no longer valid and need to find it again
* before reset old inode info.
*/
- old.bh = ext4_find_entry(old.dir, &old.dentry->d_name, &old.de, NULL);
+ old.bh = ext4_find_entry(old.dir, &old.dentry->d_name, &old.de, NULL,
+ NULL);
if (IS_ERR(old.bh))
retval = PTR_ERR(old.bh);
if (!old.bh)
@@ -3471,12 +3708,13 @@ static int ext4_find_delete_entry(handle_t *handle, struct inode *dir,
int retval = -ENOENT;
struct buffer_head *bh;
struct ext4_dir_entry_2 *de;
+ ext4_lblk_t lblk;
- bh = ext4_find_entry(dir, d_name, &de, NULL);
+ bh = ext4_find_entry(dir, d_name, &de, NULL, &lblk);
if (IS_ERR(bh))
return PTR_ERR(bh);
if (bh) {
- retval = ext4_delete_entry(handle, dir, de, bh);
+ retval = ext4_delete_entry(handle, dir, de, lblk, bh);
brelse(bh);
}
return retval;
@@ -3500,7 +3738,8 @@ static void ext4_rename_delete(handle_t *handle, struct ext4_renament *ent,
retval = ext4_find_delete_entry(handle, ent->dir,
&ent->dentry->d_name);
} else {
- retval = ext4_delete_entry(handle, ent->dir, ent->de, ent->bh);
+ retval = ext4_delete_entry(handle, ent->dir, ent->de,
+ ent->lblk, ent->bh);
if (retval == -ENOENT) {
retval = ext4_find_delete_entry(handle, ent->dir,
&ent->dentry->d_name);
@@ -3613,7 +3852,8 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
return retval;
}
- old.bh = ext4_find_entry(old.dir, &old.dentry->d_name, &old.de, NULL);
+ old.bh = ext4_find_entry(old.dir, &old.dentry->d_name, &old.de, NULL,
+ &old.lblk);
if (IS_ERR(old.bh))
return PTR_ERR(old.bh);
/*
@@ -3627,7 +3867,7 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
goto release_bh;
new.bh = ext4_find_entry(new.dir, &new.dentry->d_name,
- &new.de, &new.inlined);
+ &new.de, &new.inlined, NULL);
if (IS_ERR(new.bh)) {
retval = PTR_ERR(new.bh);
new.bh = NULL;
@@ -3811,7 +4051,7 @@ static int ext4_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
return retval;
old.bh = ext4_find_entry(old.dir, &old.dentry->d_name,
- &old.de, &old.inlined);
+ &old.de, &old.inlined, NULL);
if (IS_ERR(old.bh))
return PTR_ERR(old.bh);
/*
@@ -3825,7 +4065,7 @@ static int ext4_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
goto end_rename;
new.bh = ext4_find_entry(new.dir, &new.dentry->d_name,
- &new.de, &new.inlined);
+ &new.de, &new.inlined, NULL);
if (IS_ERR(new.bh)) {
retval = PTR_ERR(new.bh);
new.bh = NULL;
diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c
index 9cc79b7..e2fad25 100644
--- a/fs/ext4/page-io.c
+++ b/fs/ext4/page-io.c
@@ -66,9 +66,7 @@ static void ext4_finish_bio(struct bio *bio)
bio_for_each_segment_all(bvec, bio, i) {
struct page *page = bvec->bv_page;
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
- struct page *data_page = NULL;
-#endif
+ struct page *bounce_page = NULL;
struct buffer_head *bh, *head;
unsigned bio_start = bvec->bv_offset;
unsigned bio_end = bio_start + bvec->bv_len;
@@ -78,13 +76,10 @@ static void ext4_finish_bio(struct bio *bio)
if (!page)
continue;
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
- if (!page->mapping) {
- /* The bounce data pages are unmapped. */
- data_page = page;
- fscrypt_pullback_bio_page(&page, false);
+ if (fscrypt_is_bounce_page(page)) {
+ bounce_page = page;
+ page = fscrypt_pagecache_page(bounce_page);
}
-#endif
if (bio->bi_status) {
SetPageError(page);
@@ -111,10 +106,7 @@ static void ext4_finish_bio(struct bio *bio)
bit_spin_unlock(BH_Uptodate_Lock, &head->b_state);
local_irq_restore(flags);
if (!under_io) {
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
- if (data_page)
- fscrypt_restore_control_page(data_page);
-#endif
+ fscrypt_free_bounce_page(bounce_page);
end_page_writeback(page);
}
}
@@ -374,6 +366,7 @@ static int io_submit_init_bio(struct ext4_io_submit *io,
bio = bio_alloc(GFP_NOIO, BIO_MAX_PAGES);
if (!bio)
return -ENOMEM;
+ fscrypt_set_bio_crypt_ctx_bh(bio, bh, GFP_NOIO);
wbc_init_bio(io->io_wbc, bio);
bio->bi_iter.bi_sector = bh->b_blocknr * (bh->b_size >> 9);
bio_set_dev(bio, bh->b_bdev);
@@ -391,7 +384,8 @@ static int io_submit_add_bh(struct ext4_io_submit *io,
{
int ret;
- if (io->io_bio && bh->b_blocknr != io->io_next_block) {
+ if (io->io_bio && (bh->b_blocknr != io->io_next_block ||
+ !fscrypt_mergeable_bio_bh(io->io_bio, bh))) {
submit_and_retry:
ext4_io_submit(io);
}
@@ -415,7 +409,7 @@ int ext4_bio_write_page(struct ext4_io_submit *io,
struct writeback_control *wbc,
bool keep_towrite)
{
- struct page *data_page = NULL;
+ struct page *bounce_page = NULL;
struct inode *inode = page->mapping->host;
unsigned block_start;
struct buffer_head *bh, *head;
@@ -477,8 +471,7 @@ int ext4_bio_write_page(struct ext4_io_submit *io,
bh = head = page_buffers(page);
- if (ext4_encrypted_inode(inode) && S_ISREG(inode->i_mode) &&
- nr_to_submit) {
+ if (fscrypt_inode_uses_fs_layer_crypto(inode) && nr_to_submit) {
gfp_t gfp_flags = GFP_NOFS;
/*
@@ -489,10 +482,10 @@ int ext4_bio_write_page(struct ext4_io_submit *io,
if (io->io_bio)
gfp_flags = GFP_NOWAIT | __GFP_NOWARN;
retry_encrypt:
- data_page = fscrypt_encrypt_page(inode, page, PAGE_SIZE, 0,
- page->index, gfp_flags);
- if (IS_ERR(data_page)) {
- ret = PTR_ERR(data_page);
+ bounce_page = fscrypt_encrypt_pagecache_blocks(page, PAGE_SIZE,
+ 0, gfp_flags);
+ if (IS_ERR(bounce_page)) {
+ ret = PTR_ERR(bounce_page);
if (ret == -ENOMEM &&
(io->io_bio || wbc->sync_mode == WB_SYNC_ALL)) {
gfp_flags = GFP_NOFS;
@@ -503,7 +496,7 @@ int ext4_bio_write_page(struct ext4_io_submit *io,
congestion_wait(BLK_RW_ASYNC, HZ/50);
goto retry_encrypt;
}
- data_page = NULL;
+ bounce_page = NULL;
goto out;
}
}
@@ -512,8 +505,7 @@ int ext4_bio_write_page(struct ext4_io_submit *io,
do {
if (!buffer_async_write(bh))
continue;
- ret = io_submit_add_bh(io, inode,
- data_page ? data_page : page, bh);
+ ret = io_submit_add_bh(io, inode, bounce_page ?: page, bh);
if (ret) {
/*
* We only get here on ENOMEM. Not much else
@@ -529,8 +521,7 @@ int ext4_bio_write_page(struct ext4_io_submit *io,
/* Error stopped previous loop? Clean up buffers... */
if (ret) {
out:
- if (data_page)
- fscrypt_restore_control_page(data_page);
+ fscrypt_free_bounce_page(bounce_page);
printk_ratelimited(KERN_ERR "%s: ret = %d\n", __func__, ret);
redirty_page_for_writepage(wbc, page);
do {
diff --git a/fs/ext4/readpage.c b/fs/ext4/readpage.c
index f461d75..eb9c630 100644
--- a/fs/ext4/readpage.c
+++ b/fs/ext4/readpage.c
@@ -46,14 +46,116 @@
#include <linux/cleancache.h>
#include "ext4.h"
+#include <trace/events/android_fs.h>
-static inline bool ext4_bio_encrypted(struct bio *bio)
+#define NUM_PREALLOC_POST_READ_CTXS 128
+
+static struct kmem_cache *bio_post_read_ctx_cache;
+static mempool_t *bio_post_read_ctx_pool;
+
+/* postprocessing steps for read bios */
+enum bio_post_read_step {
+ STEP_INITIAL = 0,
+ STEP_DECRYPT,
+ STEP_VERITY,
+};
+
+struct bio_post_read_ctx {
+ struct bio *bio;
+ struct work_struct work;
+ unsigned int cur_step;
+ unsigned int enabled_steps;
+};
+
+static void __read_end_io(struct bio *bio)
{
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
- return unlikely(bio->bi_private != NULL);
-#else
- return false;
-#endif
+ struct page *page;
+ struct bio_vec *bv;
+ int i;
+
+ bio_for_each_segment_all(bv, bio, i) {
+ page = bv->bv_page;
+
+ /* PG_error was set if any post_read step failed */
+ if (bio->bi_status || PageError(page)) {
+ ClearPageUptodate(page);
+ /* will re-read again later */
+ ClearPageError(page);
+ } else {
+ SetPageUptodate(page);
+ }
+ unlock_page(page);
+ }
+ if (bio->bi_private)
+ mempool_free(bio->bi_private, bio_post_read_ctx_pool);
+ bio_put(bio);
+}
+
+static void bio_post_read_processing(struct bio_post_read_ctx *ctx);
+
+static void decrypt_work(struct work_struct *work)
+{
+ struct bio_post_read_ctx *ctx =
+ container_of(work, struct bio_post_read_ctx, work);
+
+ fscrypt_decrypt_bio(ctx->bio);
+
+ bio_post_read_processing(ctx);
+}
+
+static void verity_work(struct work_struct *work)
+{
+ struct bio_post_read_ctx *ctx =
+ container_of(work, struct bio_post_read_ctx, work);
+
+ fsverity_verify_bio(ctx->bio);
+
+ bio_post_read_processing(ctx);
+}
+
+static void bio_post_read_processing(struct bio_post_read_ctx *ctx)
+{
+ /*
+ * We use different work queues for decryption and for verity because
+ * verity may require reading metadata pages that need decryption, and
+ * we shouldn't recurse to the same workqueue.
+ */
+ switch (++ctx->cur_step) {
+ case STEP_DECRYPT:
+ if (ctx->enabled_steps & (1 << STEP_DECRYPT)) {
+ INIT_WORK(&ctx->work, decrypt_work);
+ fscrypt_enqueue_decrypt_work(&ctx->work);
+ return;
+ }
+ ctx->cur_step++;
+ /* fall-through */
+ case STEP_VERITY:
+ if (ctx->enabled_steps & (1 << STEP_VERITY)) {
+ INIT_WORK(&ctx->work, verity_work);
+ fsverity_enqueue_verify_work(&ctx->work);
+ return;
+ }
+ ctx->cur_step++;
+ /* fall-through */
+ default:
+ __read_end_io(ctx->bio);
+ }
+}
+
+static bool bio_post_read_required(struct bio *bio)
+{
+ return bio->bi_private && !bio->bi_status;
+}
+
+static void
+ext4_trace_read_completion(struct bio *bio)
+{
+ struct page *first_page = bio->bi_io_vec[0].bv_page;
+
+ if (first_page != NULL)
+ trace_android_fs_dataread_end(first_page->mapping->host,
+ page_offset(first_page),
+ bio->bi_iter.bi_size);
}
/*
@@ -70,30 +172,80 @@ static inline bool ext4_bio_encrypted(struct bio *bio)
*/
static void mpage_end_io(struct bio *bio)
{
- struct bio_vec *bv;
- int i;
+ if (trace_android_fs_dataread_start_enabled())
+ ext4_trace_read_completion(bio);
- if (ext4_bio_encrypted(bio)) {
- if (bio->bi_status) {
- fscrypt_release_ctx(bio->bi_private);
- } else {
- fscrypt_enqueue_decrypt_bio(bio->bi_private, bio);
- return;
+ if (bio_post_read_required(bio)) {
+ struct bio_post_read_ctx *ctx = bio->bi_private;
+
+ ctx->cur_step = STEP_INITIAL;
+ bio_post_read_processing(ctx);
+ return;
+ }
+ __read_end_io(bio);
+}
+
+static inline bool ext4_need_verity(const struct inode *inode, pgoff_t idx)
+{
+ return fsverity_active(inode) &&
+ idx < DIV_ROUND_UP(inode->i_size, PAGE_SIZE);
+}
+
+static struct bio_post_read_ctx *get_bio_post_read_ctx(struct inode *inode,
+ struct bio *bio,
+ pgoff_t first_idx)
+{
+ unsigned int post_read_steps = 0;
+ struct bio_post_read_ctx *ctx = NULL;
+
+ if (fscrypt_inode_uses_fs_layer_crypto(inode))
+ post_read_steps |= 1 << STEP_DECRYPT;
+
+ if (ext4_need_verity(inode, first_idx))
+ post_read_steps |= 1 << STEP_VERITY;
+
+ if (post_read_steps) {
+ ctx = mempool_alloc(bio_post_read_ctx_pool, GFP_NOFS);
+ if (!ctx)
+ return ERR_PTR(-ENOMEM);
+ ctx->bio = bio;
+ ctx->enabled_steps = post_read_steps;
+ bio->bi_private = ctx;
+ }
+ return ctx;
+}
+
+static inline loff_t ext4_readpage_limit(struct inode *inode)
+{
+ if (IS_ENABLED(CONFIG_FS_VERITY) &&
+ (IS_VERITY(inode) || ext4_verity_in_progress(inode)))
+ return inode->i_sb->s_maxbytes;
+
+ return i_size_read(inode);
+}
+
+static void
+ext4_submit_bio_read(struct bio *bio)
+{
+ if (trace_android_fs_dataread_start_enabled()) {
+ struct page *first_page = bio->bi_io_vec[0].bv_page;
+
+ if (first_page != NULL) {
+ char *path, pathbuf[MAX_TRACE_PATHBUF_LEN];
+
+ path = android_fstrace_get_pathname(pathbuf,
+ MAX_TRACE_PATHBUF_LEN,
+ first_page->mapping->host);
+ trace_android_fs_dataread_start(
+ first_page->mapping->host,
+ page_offset(first_page),
+ bio->bi_iter.bi_size,
+ current->pid,
+ path,
+ current->comm);
}
}
- bio_for_each_segment_all(bv, bio, i) {
- struct page *page = bv->bv_page;
-
- if (!bio->bi_status) {
- SetPageUptodate(page);
- } else {
- ClearPageUptodate(page);
- SetPageError(page);
- }
- unlock_page(page);
- }
-
- bio_put(bio);
+ submit_bio(bio);
}
int ext4_mpage_readpages(struct address_space *mapping,
@@ -107,6 +259,7 @@ int ext4_mpage_readpages(struct address_space *mapping,
const unsigned blkbits = inode->i_blkbits;
const unsigned blocks_per_page = PAGE_SIZE >> blkbits;
const unsigned blocksize = 1 << blkbits;
+ sector_t next_block;
sector_t block_in_file;
sector_t last_block;
sector_t last_block_in_file;
@@ -138,9 +291,11 @@ int ext4_mpage_readpages(struct address_space *mapping,
if (page_has_buffers(page))
goto confused;
- block_in_file = (sector_t)page->index << (PAGE_SHIFT - blkbits);
+ block_in_file = next_block =
+ (sector_t)page->index << (PAGE_SHIFT - blkbits);
last_block = block_in_file + nr_pages * blocks_per_page;
- last_block_in_file = (i_size_read(inode) + blocksize - 1) >> blkbits;
+ last_block_in_file = (ext4_readpage_limit(inode) +
+ blocksize - 1) >> blkbits;
if (last_block > last_block_in_file)
last_block = last_block_in_file;
page_block = 0;
@@ -217,6 +372,9 @@ int ext4_mpage_readpages(struct address_space *mapping,
zero_user_segment(page, first_hole << blkbits,
PAGE_SIZE);
if (first_hole == 0) {
+ if (ext4_need_verity(inode, page->index) &&
+ !fsverity_verify_page(page))
+ goto set_error_page;
SetPageUptodate(page);
unlock_page(page);
goto next_page;
@@ -234,25 +392,25 @@ int ext4_mpage_readpages(struct address_space *mapping,
* This page will go to BIO. Do we need to send this
* BIO off first?
*/
- if (bio && (last_block_in_bio != blocks[0] - 1)) {
+ if (bio && (last_block_in_bio != blocks[0] - 1 ||
+ !fscrypt_mergeable_bio(bio, inode, next_block))) {
submit_and_realloc:
- submit_bio(bio);
+ ext4_submit_bio_read(bio);
bio = NULL;
}
if (bio == NULL) {
- struct fscrypt_ctx *ctx = NULL;
+ struct bio_post_read_ctx *ctx;
- if (ext4_encrypted_inode(inode) &&
- S_ISREG(inode->i_mode)) {
- ctx = fscrypt_get_ctx(inode, GFP_NOFS);
- if (IS_ERR(ctx))
- goto set_error_page;
- }
bio = bio_alloc(GFP_KERNEL,
min_t(int, nr_pages, BIO_MAX_PAGES));
- if (!bio) {
- if (ctx)
- fscrypt_release_ctx(ctx);
+ if (!bio)
+ goto set_error_page;
+ fscrypt_set_bio_crypt_ctx(bio, inode, next_block,
+ GFP_KERNEL);
+ ctx = get_bio_post_read_ctx(inode, bio, page->index);
+ if (IS_ERR(ctx)) {
+ bio_put(bio);
+ bio = NULL;
goto set_error_page;
}
bio_set_dev(bio, bdev);
@@ -270,14 +428,14 @@ int ext4_mpage_readpages(struct address_space *mapping,
if (((map.m_flags & EXT4_MAP_BOUNDARY) &&
(relative_block == map.m_len)) ||
(first_hole != blocks_per_page)) {
- submit_bio(bio);
+ ext4_submit_bio_read(bio);
bio = NULL;
} else
last_block_in_bio = blocks[blocks_per_page - 1];
goto next_page;
confused:
if (bio) {
- submit_bio(bio);
+ ext4_submit_bio_read(bio);
bio = NULL;
}
if (!PageUptodate(page))
@@ -290,6 +448,32 @@ int ext4_mpage_readpages(struct address_space *mapping,
}
BUG_ON(pages && !list_empty(pages));
if (bio)
- submit_bio(bio);
+ ext4_submit_bio_read(bio);
return 0;
}
+
+int __init ext4_init_post_read_processing(void)
+{
+ bio_post_read_ctx_cache =
+ kmem_cache_create("ext4_bio_post_read_ctx",
+ sizeof(struct bio_post_read_ctx), 0, 0, NULL);
+ if (!bio_post_read_ctx_cache)
+ goto fail;
+ bio_post_read_ctx_pool =
+ mempool_create_slab_pool(NUM_PREALLOC_POST_READ_CTXS,
+ bio_post_read_ctx_cache);
+ if (!bio_post_read_ctx_pool)
+ goto fail_free_cache;
+ return 0;
+
+fail_free_cache:
+ kmem_cache_destroy(bio_post_read_ctx_cache);
+fail:
+ return -ENOMEM;
+}
+
+void ext4_exit_post_read_processing(void)
+{
+ mempool_destroy(bio_post_read_ctx_pool);
+ kmem_cache_destroy(bio_post_read_ctx_cache);
+}
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 9ae3b6d..6b8e9de 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -42,6 +42,7 @@
#include <linux/cleancache.h>
#include <linux/uaccess.h>
#include <linux/iversion.h>
+#include <linux/unicode.h>
#include <linux/kthread.h>
#include <linux/freezer.h>
@@ -1064,6 +1065,10 @@ static void ext4_put_super(struct super_block *sb)
crypto_free_shash(sbi->s_chksum_driver);
kfree(sbi->s_blockgroup_lock);
fs_put_dax(sbi->s_daxdev);
+ fscrypt_free_dummy_context(&sbi->s_dummy_enc_ctx);
+#ifdef CONFIG_UNICODE
+ utf8_unload(sb->s_encoding);
+#endif
kfree(sbi);
}
@@ -1112,6 +1117,9 @@ static int ext4_drop_inode(struct inode *inode)
{
int drop = generic_drop_inode(inode);
+ if (!drop)
+ drop = fscrypt_drop_inode(inode);
+
trace_ext4_drop_inode(inode, drop);
return drop;
}
@@ -1119,6 +1127,9 @@ static int ext4_drop_inode(struct inode *inode)
static void ext4_i_callback(struct rcu_head *head)
{
struct inode *inode = container_of(head, struct inode, i_rcu);
+
+ fscrypt_free_inode(inode);
+
kmem_cache_free(ext4_inode_cachep, EXT4_I(inode));
}
@@ -1185,6 +1196,7 @@ void ext4_clear_inode(struct inode *inode)
EXT4_I(inode)->jinode = NULL;
}
fscrypt_put_encryption_info(inode);
+ fsverity_cleanup_inode(inode);
}
static struct inode *ext4_nfs_get_inode(struct super_block *sb,
@@ -1251,7 +1263,7 @@ static int bdev_try_to_free_page(struct super_block *sb, struct page *page,
return try_to_free_buffers(page);
}
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
+#ifdef CONFIG_FS_ENCRYPTION
static int ext4_get_context(struct inode *inode, void *ctx, size_t len)
{
return ext4_xattr_get(inode, EXT4_XATTR_INDEX_ENCRYPTION,
@@ -1342,18 +1354,39 @@ static int ext4_set_context(struct inode *inode, const void *ctx, size_t len,
return res;
}
-static bool ext4_dummy_context(struct inode *inode)
+static const union fscrypt_context *
+ext4_get_dummy_context(struct super_block *sb)
{
- return DUMMY_ENCRYPTION_ENABLED(EXT4_SB(inode->i_sb));
+ return EXT4_SB(sb)->s_dummy_enc_ctx.ctx;
+}
+
+static bool ext4_has_stable_inodes(struct super_block *sb)
+{
+ return ext4_has_feature_stable_inodes(sb);
+}
+
+static void ext4_get_ino_and_lblk_bits(struct super_block *sb,
+ int *ino_bits_ret, int *lblk_bits_ret)
+{
+ *ino_bits_ret = 8 * sizeof(EXT4_SB(sb)->s_es->s_inodes_count);
+ *lblk_bits_ret = 8 * sizeof(ext4_lblk_t);
+}
+
+static bool ext4_inline_crypt_enabled(struct super_block *sb)
+{
+ return test_opt(sb, INLINECRYPT);
}
static const struct fscrypt_operations ext4_cryptops = {
.key_prefix = "ext4:",
.get_context = ext4_get_context,
.set_context = ext4_set_context,
- .dummy_context = ext4_dummy_context,
+ .get_dummy_context = ext4_get_dummy_context,
.empty_dir = ext4_empty_dir,
.max_namelen = EXT4_NAME_LEN,
+ .has_stable_inodes = ext4_has_stable_inodes,
+ .get_ino_and_lblk_bits = ext4_get_ino_and_lblk_bits,
+ .inline_crypt_enabled = ext4_inline_crypt_enabled,
};
#endif
@@ -1448,6 +1481,7 @@ enum {
Opt_journal_path, Opt_journal_checksum, Opt_journal_async_commit,
Opt_abort, Opt_data_journal, Opt_data_ordered, Opt_data_writeback,
Opt_data_err_abort, Opt_data_err_ignore, Opt_test_dummy_encryption,
+ Opt_inlinecrypt,
Opt_usrjquota, Opt_grpjquota, Opt_offusrjquota, Opt_offgrpjquota,
Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_jqfmt_vfsv1, Opt_quota,
Opt_noquota, Opt_barrier, Opt_nobarrier, Opt_err,
@@ -1543,7 +1577,9 @@ static const match_table_t tokens = {
{Opt_init_itable, "init_itable"},
{Opt_noinit_itable, "noinit_itable"},
{Opt_max_dir_size_kb, "max_dir_size_kb=%u"},
+ {Opt_test_dummy_encryption, "test_dummy_encryption=%s"},
{Opt_test_dummy_encryption, "test_dummy_encryption"},
+ {Opt_inlinecrypt, "inlinecrypt"},
{Opt_nombcache, "nombcache"},
{Opt_nombcache, "no_mbcache"}, /* for backward compatibility */
{Opt_removed, "check=none"}, /* mount option from ext2/3 */
@@ -1754,11 +1790,88 @@ static const struct mount_opts {
{Opt_jqfmt_vfsv0, QFMT_VFS_V0, MOPT_QFMT},
{Opt_jqfmt_vfsv1, QFMT_VFS_V1, MOPT_QFMT},
{Opt_max_dir_size_kb, 0, MOPT_GTE0},
- {Opt_test_dummy_encryption, 0, MOPT_GTE0},
+ {Opt_test_dummy_encryption, 0, MOPT_STRING},
+#ifdef CONFIG_FS_ENCRYPTION_INLINE_CRYPT
+ {Opt_inlinecrypt, EXT4_MOUNT_INLINECRYPT, MOPT_SET},
+#else
+ {Opt_inlinecrypt, EXT4_MOUNT_INLINECRYPT, MOPT_NOSUPPORT},
+#endif
{Opt_nombcache, EXT4_MOUNT_NO_MBCACHE, MOPT_SET},
{Opt_err, 0, 0}
};
+#ifdef CONFIG_UNICODE
+static const struct ext4_sb_encodings {
+ __u16 magic;
+ char *name;
+ char *version;
+} ext4_sb_encoding_map[] = {
+ {EXT4_ENC_UTF8_12_1, "utf8", "12.1.0"},
+};
+
+static int ext4_sb_read_encoding(const struct ext4_super_block *es,
+ const struct ext4_sb_encodings **encoding,
+ __u16 *flags)
+{
+ __u16 magic = le16_to_cpu(es->s_encoding);
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(ext4_sb_encoding_map); i++)
+ if (magic == ext4_sb_encoding_map[i].magic)
+ break;
+
+ if (i >= ARRAY_SIZE(ext4_sb_encoding_map))
+ return -EINVAL;
+
+ *encoding = &ext4_sb_encoding_map[i];
+ *flags = le16_to_cpu(es->s_encoding_flags);
+
+ return 0;
+}
+#endif
+
+static int ext4_set_test_dummy_encryption(struct super_block *sb,
+ const char *opt,
+ const substring_t *arg,
+ bool is_remount)
+{
+#ifdef CONFIG_FS_ENCRYPTION
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
+ int err;
+
+ /*
+ * This mount option is just for testing, and it's not worthwhile to
+ * implement the extra complexity (e.g. RCU protection) that would be
+ * needed to allow it to be set or changed during remount. We do allow
+ * it to be specified during remount, but only if there is no change.
+ */
+ if (is_remount && !sbi->s_dummy_enc_ctx.ctx) {
+ ext4_msg(sb, KERN_WARNING,
+ "Can't set test_dummy_encryption on remount");
+ return -1;
+ }
+ err = fscrypt_set_test_dummy_encryption(sb, arg, &sbi->s_dummy_enc_ctx);
+ if (err) {
+ if (err == -EEXIST)
+ ext4_msg(sb, KERN_WARNING,
+ "Can't change test_dummy_encryption on remount");
+ else if (err == -EINVAL)
+ ext4_msg(sb, KERN_WARNING,
+ "Value of option \"%s\" is unrecognized", opt);
+ else
+ ext4_msg(sb, KERN_WARNING,
+ "Error processing option \"%s\" [%d]",
+ opt, err);
+ return -1;
+ }
+ ext4_msg(sb, KERN_WARNING, "Test dummy encryption mode enabled");
+#else
+ ext4_msg(sb, KERN_WARNING,
+ "Test dummy encryption mount option ignored");
+#endif
+ return 1;
+}
+
static int handle_mount_opt(struct super_block *sb, char *opt, int token,
substring_t *args, unsigned long *journal_devnum,
unsigned int *journal_ioprio, int is_remount)
@@ -1948,14 +2061,8 @@ static int handle_mount_opt(struct super_block *sb, char *opt, int token,
*journal_ioprio =
IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, arg);
} else if (token == Opt_test_dummy_encryption) {
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
- sbi->s_mount_flags |= EXT4_MF_TEST_DUMMY_ENCRYPTION;
- ext4_msg(sb, KERN_WARNING,
- "Test dummy encryption mode enabled");
-#else
- ext4_msg(sb, KERN_WARNING,
- "Test dummy encryption mount option ignored");
-#endif
+ return ext4_set_test_dummy_encryption(sb, opt, &args[0],
+ is_remount);
} else if (m->flags & MOPT_DATAJ) {
if (is_remount) {
if (!sbi->s_journal)
@@ -2224,8 +2331,8 @@ static int _ext4_show_options(struct seq_file *seq, struct super_block *sb,
SEQ_OPTS_PRINT("max_dir_size_kb=%u", sbi->s_max_dir_size_kb);
if (test_opt(sb, DATA_ERR_ABORT))
SEQ_OPTS_PUTS("data_err=abort");
- if (DUMMY_ENCRYPTION_ENABLED(sbi))
- SEQ_OPTS_PUTS("test_dummy_encryption");
+
+ fscrypt_show_test_dummy_encryption(seq, sep, sb);
ext4_show_quota_options(seq, sb);
return 0;
@@ -2926,6 +3033,15 @@ static int ext4_feature_set_ok(struct super_block *sb, int readonly)
return 0;
}
+#ifndef CONFIG_UNICODE
+ if (ext4_has_feature_casefold(sb)) {
+ ext4_msg(sb, KERN_ERR,
+ "Filesystem with casefold feature cannot be "
+ "mounted without CONFIG_UNICODE");
+ return 0;
+ }
+#endif
+
if (readonly)
return 1;
@@ -3850,6 +3966,37 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
&journal_ioprio, 0))
goto failed_mount;
+#ifdef CONFIG_UNICODE
+ if (ext4_has_feature_casefold(sb) && !sb->s_encoding) {
+ const struct ext4_sb_encodings *encoding_info;
+ struct unicode_map *encoding;
+ __u16 encoding_flags;
+
+ if (ext4_sb_read_encoding(es, &encoding_info,
+ &encoding_flags)) {
+ ext4_msg(sb, KERN_ERR,
+ "Encoding requested by superblock is unknown");
+ goto failed_mount;
+ }
+
+ encoding = utf8_load(encoding_info->version);
+ if (IS_ERR(encoding)) {
+ ext4_msg(sb, KERN_ERR,
+ "can't mount with superblock charset: %s-%s "
+ "not supported by the kernel. flags: 0x%x.",
+ encoding_info->name, encoding_info->version,
+ encoding_flags);
+ goto failed_mount;
+ }
+ ext4_msg(sb, KERN_INFO,"Using encoding defined by superblock: "
+ "%s-%s with flags 0x%hx", encoding_info->name,
+ encoding_info->version?:"\b", encoding_flags);
+
+ sb->s_encoding = encoding;
+ sb->s_encoding_flags = encoding_flags;
+ }
+#endif
+
if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA) {
printk_once(KERN_WARNING "EXT4-fs: Warning: mounting "
"with data=journal disables delayed "
@@ -4262,9 +4409,12 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
sb->s_op = &ext4_sops;
sb->s_export_op = &ext4_export_ops;
sb->s_xattr = ext4_xattr_handlers;
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
+#ifdef CONFIG_FS_ENCRYPTION
sb->s_cop = &ext4_cryptops;
#endif
+#ifdef CONFIG_FS_VERITY
+ sb->s_vop = &ext4_verityops;
+#endif
#ifdef CONFIG_QUOTA
sb->dq_op = &ext4_quota_operations;
if (ext4_has_feature_quota(sb))
@@ -4412,6 +4562,11 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
goto failed_mount_wq;
}
+ if (ext4_has_feature_verity(sb) && blocksize != PAGE_SIZE) {
+ ext4_msg(sb, KERN_ERR, "Unsupported blocksize for fs-verity");
+ goto failed_mount_wq;
+ }
+
if (DUMMY_ENCRYPTION_ENABLED(sbi) && !sb_rdonly(sb) &&
!ext4_has_feature_encrypt(sb)) {
ext4_set_feature_encrypt(sb);
@@ -4459,6 +4614,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
iput(root);
goto failed_mount4;
}
+
sb->s_root = d_make_root(root);
if (!sb->s_root) {
ext4_msg(sb, KERN_ERR, "get root dentry failed");
@@ -4654,10 +4810,16 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
failed_mount:
if (sbi->s_chksum_driver)
crypto_free_shash(sbi->s_chksum_driver);
+
+#ifdef CONFIG_UNICODE
+ utf8_unload(sb->s_encoding);
+#endif
+
#ifdef CONFIG_QUOTA
for (i = 0; i < EXT4_MAXQUOTAS; i++)
kfree(sbi->s_qf_names[i]);
#endif
+ fscrypt_free_dummy_context(&sbi->s_dummy_enc_ctx);
ext4_blkdev_remove(sbi);
brelse(bh);
out_fail:
@@ -6140,6 +6302,10 @@ static int __init ext4_init_fs(void)
if (err)
return err;
+ err = ext4_init_post_read_processing();
+ if (err)
+ goto out6;
+
err = ext4_init_pageio();
if (err)
goto out5;
@@ -6178,6 +6344,8 @@ static int __init ext4_init_fs(void)
out4:
ext4_exit_pageio();
out5:
+ ext4_exit_post_read_processing();
+out6:
ext4_exit_es();
return err;
@@ -6194,6 +6362,7 @@ static void __exit ext4_exit_fs(void)
ext4_exit_sysfs();
ext4_exit_system_zone();
ext4_exit_pageio();
+ ext4_exit_post_read_processing();
ext4_exit_es();
}
diff --git a/fs/ext4/sysfs.c b/fs/ext4/sysfs.c
index 9212a02..653b670 100644
--- a/fs/ext4/sysfs.c
+++ b/fs/ext4/sysfs.c
@@ -224,8 +224,15 @@ static struct attribute *ext4_attrs[] = {
EXT4_ATTR_FEATURE(lazy_itable_init);
EXT4_ATTR_FEATURE(batched_discard);
EXT4_ATTR_FEATURE(meta_bg_resize);
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
+#ifdef CONFIG_FS_ENCRYPTION
EXT4_ATTR_FEATURE(encryption);
+EXT4_ATTR_FEATURE(test_dummy_encryption_v2);
+#endif
+#ifdef CONFIG_UNICODE
+EXT4_ATTR_FEATURE(casefold);
+#endif
+#ifdef CONFIG_FS_VERITY
+EXT4_ATTR_FEATURE(verity);
#endif
EXT4_ATTR_FEATURE(metadata_csum_seed);
@@ -233,8 +240,15 @@ static struct attribute *ext4_feat_attrs[] = {
ATTR_LIST(lazy_itable_init),
ATTR_LIST(batched_discard),
ATTR_LIST(meta_bg_resize),
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
+#ifdef CONFIG_FS_ENCRYPTION
ATTR_LIST(encryption),
+ ATTR_LIST(test_dummy_encryption_v2),
+#endif
+#ifdef CONFIG_UNICODE
+ ATTR_LIST(casefold),
+#endif
+#ifdef CONFIG_FS_VERITY
+ ATTR_LIST(verity),
#endif
ATTR_LIST(metadata_csum_seed),
NULL,
diff --git a/fs/ext4/verity.c b/fs/ext4/verity.c
new file mode 100644
index 0000000..0650056
--- /dev/null
+++ b/fs/ext4/verity.c
@@ -0,0 +1,412 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * fs/ext4/verity.c: fs-verity support for ext4
+ *
+ * Copyright 2019 Google LLC
+ */
+
+/*
+ * Implementation of fsverity_operations for ext4.
+ *
+ * ext4 stores the verity metadata (Merkle tree and fsverity_descriptor) past
+ * the end of the file, starting at the first 64K boundary beyond i_size. This
+ * approach works because (a) verity files are readonly, and (b) pages fully
+ * beyond i_size aren't visible to userspace but can be read/written internally
+ * by ext4 with only some relatively small changes to ext4. This approach
+ * avoids having to depend on the EA_INODE feature and on rearchitecturing
+ * ext4's xattr support to support paging multi-gigabyte xattrs into memory, and
+ * to support encrypting xattrs. Note that the verity metadata *must* be
+ * encrypted when the file is, since it contains hashes of the plaintext data.
+ *
+ * Using a 64K boundary rather than a 4K one keeps things ready for
+ * architectures with 64K pages, and it doesn't necessarily waste space on-disk
+ * since there can be a hole between i_size and the start of the Merkle tree.
+ */
+
+#include <linux/quotaops.h>
+
+#include "ext4.h"
+#include "ext4_extents.h"
+#include "ext4_jbd2.h"
+
+static inline loff_t ext4_verity_metadata_pos(const struct inode *inode)
+{
+ return round_up(inode->i_size, 65536);
+}
+
+/*
+ * Read some verity metadata from the inode. __vfs_read() can't be used because
+ * we need to read beyond i_size.
+ */
+static int pagecache_read(struct inode *inode, void *buf, size_t count,
+ loff_t pos)
+{
+ while (count) {
+ size_t n = min_t(size_t, count,
+ PAGE_SIZE - offset_in_page(pos));
+ struct page *page;
+ void *addr;
+
+ page = read_mapping_page(inode->i_mapping, pos >> PAGE_SHIFT,
+ NULL);
+ if (IS_ERR(page))
+ return PTR_ERR(page);
+
+ addr = kmap_atomic(page);
+ memcpy(buf, addr + offset_in_page(pos), n);
+ kunmap_atomic(addr);
+
+ put_page(page);
+
+ buf += n;
+ pos += n;
+ count -= n;
+ }
+ return 0;
+}
+
+/*
+ * Write some verity metadata to the inode for FS_IOC_ENABLE_VERITY.
+ * kernel_write() can't be used because the file descriptor is readonly.
+ */
+static int pagecache_write(struct inode *inode, const void *buf, size_t count,
+ loff_t pos)
+{
+ if (pos + count > inode->i_sb->s_maxbytes)
+ return -EFBIG;
+
+ while (count) {
+ size_t n = min_t(size_t, count,
+ PAGE_SIZE - offset_in_page(pos));
+ struct page *page;
+ void *fsdata;
+ void *addr;
+ int res;
+
+ res = pagecache_write_begin(NULL, inode->i_mapping, pos, n, 0,
+ &page, &fsdata);
+ if (res)
+ return res;
+
+ addr = kmap_atomic(page);
+ memcpy(addr + offset_in_page(pos), buf, n);
+ kunmap_atomic(addr);
+
+ res = pagecache_write_end(NULL, inode->i_mapping, pos, n, n,
+ page, fsdata);
+ if (res < 0)
+ return res;
+ if (res != n)
+ return -EIO;
+
+ buf += n;
+ pos += n;
+ count -= n;
+ }
+ return 0;
+}
+
+static int ext4_begin_enable_verity(struct file *filp)
+{
+ struct inode *inode = file_inode(filp);
+ const int credits = 2; /* superblock and inode for ext4_orphan_add() */
+ handle_t *handle;
+ int err;
+
+ if (ext4_verity_in_progress(inode))
+ return -EBUSY;
+
+ /*
+ * Since the file was opened readonly, we have to initialize the jbd
+ * inode and quotas here and not rely on ->open() doing it. This must
+ * be done before evicting the inline data.
+ */
+
+ err = ext4_inode_attach_jinode(inode);
+ if (err)
+ return err;
+
+ err = dquot_initialize(inode);
+ if (err)
+ return err;
+
+ err = ext4_convert_inline_data(inode);
+ if (err)
+ return err;
+
+ if (!ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)) {
+ ext4_warning_inode(inode,
+ "verity is only allowed on extent-based files");
+ return -EOPNOTSUPP;
+ }
+
+ /*
+ * ext4 uses the last allocated block to find the verity descriptor, so
+ * we must remove any other blocks past EOF which might confuse things.
+ */
+ err = ext4_truncate(inode);
+ if (err)
+ return err;
+
+ handle = ext4_journal_start(inode, EXT4_HT_INODE, credits);
+ if (IS_ERR(handle))
+ return PTR_ERR(handle);
+
+ err = ext4_orphan_add(handle, inode);
+ if (err == 0)
+ ext4_set_inode_state(inode, EXT4_STATE_VERITY_IN_PROGRESS);
+
+ ext4_journal_stop(handle);
+ return err;
+}
+
+/*
+ * ext4 stores the verity descriptor beginning on the next filesystem block
+ * boundary after the Merkle tree. Then, the descriptor size is stored in the
+ * last 4 bytes of the last allocated filesystem block --- which is either the
+ * block in which the descriptor ends, or the next block after that if there
+ * weren't at least 4 bytes remaining.
+ *
+ * We can't simply store the descriptor in an xattr because it *must* be
+ * encrypted when ext4 encryption is used, but ext4 encryption doesn't encrypt
+ * xattrs. Also, if the descriptor includes a large signature blob it may be
+ * too large to store in an xattr without the EA_INODE feature.
+ */
+static int ext4_write_verity_descriptor(struct inode *inode, const void *desc,
+ size_t desc_size, u64 merkle_tree_size)
+{
+ const u64 desc_pos = round_up(ext4_verity_metadata_pos(inode) +
+ merkle_tree_size, i_blocksize(inode));
+ const u64 desc_end = desc_pos + desc_size;
+ const __le32 desc_size_disk = cpu_to_le32(desc_size);
+ const u64 desc_size_pos = round_up(desc_end + sizeof(desc_size_disk),
+ i_blocksize(inode)) -
+ sizeof(desc_size_disk);
+ int err;
+
+ err = pagecache_write(inode, desc, desc_size, desc_pos);
+ if (err)
+ return err;
+
+ return pagecache_write(inode, &desc_size_disk, sizeof(desc_size_disk),
+ desc_size_pos);
+}
+
+static int ext4_end_enable_verity(struct file *filp, const void *desc,
+ size_t desc_size, u64 merkle_tree_size)
+{
+ struct inode *inode = file_inode(filp);
+ const int credits = 2; /* superblock and inode for ext4_orphan_del() */
+ handle_t *handle;
+ int err = 0;
+ int err2;
+
+ if (desc != NULL) {
+ /* Succeeded; write the verity descriptor. */
+ err = ext4_write_verity_descriptor(inode, desc, desc_size,
+ merkle_tree_size);
+
+ /* Write all pages before clearing VERITY_IN_PROGRESS. */
+ if (!err)
+ err = filemap_write_and_wait(inode->i_mapping);
+ }
+
+ /* If we failed, truncate anything we wrote past i_size. */
+ if (desc == NULL || err)
+ ext4_truncate(inode);
+
+ /*
+ * We must always clean up by clearing EXT4_STATE_VERITY_IN_PROGRESS and
+ * deleting the inode from the orphan list, even if something failed.
+ * If everything succeeded, we'll also set the verity bit in the same
+ * transaction.
+ */
+
+ ext4_clear_inode_state(inode, EXT4_STATE_VERITY_IN_PROGRESS);
+
+ handle = ext4_journal_start(inode, EXT4_HT_INODE, credits);
+ if (IS_ERR(handle)) {
+ ext4_orphan_del(NULL, inode);
+ return PTR_ERR(handle);
+ }
+
+ err2 = ext4_orphan_del(handle, inode);
+ if (err2)
+ goto out_stop;
+
+ if (desc != NULL && !err) {
+ struct ext4_iloc iloc;
+
+ err = ext4_reserve_inode_write(handle, inode, &iloc);
+ if (err)
+ goto out_stop;
+ ext4_set_inode_flag(inode, EXT4_INODE_VERITY);
+ ext4_set_inode_flags(inode);
+ err = ext4_mark_iloc_dirty(handle, inode, &iloc);
+ }
+out_stop:
+ ext4_journal_stop(handle);
+ return err ?: err2;
+}
+
+static int ext4_get_verity_descriptor_location(struct inode *inode,
+ size_t *desc_size_ret,
+ u64 *desc_pos_ret)
+{
+ struct ext4_ext_path *path;
+ struct ext4_extent *last_extent;
+ u32 end_lblk;
+ u64 desc_size_pos;
+ __le32 desc_size_disk;
+ u32 desc_size;
+ u64 desc_pos;
+ int err;
+
+ /*
+ * Descriptor size is in last 4 bytes of last allocated block.
+ * See ext4_write_verity_descriptor().
+ */
+
+ if (!ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)) {
+ EXT4_ERROR_INODE(inode, "verity file doesn't use extents");
+ return -EFSCORRUPTED;
+ }
+
+ path = ext4_find_extent(inode, EXT_MAX_BLOCKS - 1, NULL, 0);
+ if (IS_ERR(path))
+ return PTR_ERR(path);
+
+ last_extent = path[path->p_depth].p_ext;
+ if (!last_extent) {
+ EXT4_ERROR_INODE(inode, "verity file has no extents");
+ ext4_ext_drop_refs(path);
+ kfree(path);
+ return -EFSCORRUPTED;
+ }
+
+ end_lblk = le32_to_cpu(last_extent->ee_block) +
+ ext4_ext_get_actual_len(last_extent);
+ desc_size_pos = (u64)end_lblk << inode->i_blkbits;
+ ext4_ext_drop_refs(path);
+ kfree(path);
+
+ if (desc_size_pos < sizeof(desc_size_disk))
+ goto bad;
+ desc_size_pos -= sizeof(desc_size_disk);
+
+ err = pagecache_read(inode, &desc_size_disk, sizeof(desc_size_disk),
+ desc_size_pos);
+ if (err)
+ return err;
+ desc_size = le32_to_cpu(desc_size_disk);
+
+ /*
+ * The descriptor is stored just before the desc_size_disk, but starting
+ * on a filesystem block boundary.
+ */
+
+ if (desc_size > INT_MAX || desc_size > desc_size_pos)
+ goto bad;
+
+ desc_pos = round_down(desc_size_pos - desc_size, i_blocksize(inode));
+ if (desc_pos < ext4_verity_metadata_pos(inode))
+ goto bad;
+
+ *desc_size_ret = desc_size;
+ *desc_pos_ret = desc_pos;
+ return 0;
+
+bad:
+ EXT4_ERROR_INODE(inode, "verity file corrupted; can't find descriptor");
+ return -EFSCORRUPTED;
+}
+
+static int ext4_get_verity_descriptor(struct inode *inode, void *buf,
+ size_t buf_size)
+{
+ size_t desc_size = 0;
+ u64 desc_pos = 0;
+ int err;
+
+ err = ext4_get_verity_descriptor_location(inode, &desc_size, &desc_pos);
+ if (err)
+ return err;
+
+ if (buf_size) {
+ if (desc_size > buf_size)
+ return -ERANGE;
+ err = pagecache_read(inode, buf, desc_size, desc_pos);
+ if (err)
+ return err;
+ }
+ return desc_size;
+}
+
+/*
+ * Prefetch some pages from the file's Merkle tree.
+ *
+ * This is basically a stripped-down version of __do_page_cache_readahead()
+ * which works on pages past i_size.
+ */
+static void ext4_merkle_tree_readahead(struct address_space *mapping,
+ pgoff_t start_index, unsigned long count)
+{
+ LIST_HEAD(pages);
+ unsigned int nr_pages = 0;
+ struct page *page;
+ pgoff_t index;
+ struct blk_plug plug;
+
+ for (index = start_index; index < start_index + count; index++) {
+ rcu_read_lock();
+ page = radix_tree_lookup(&mapping->i_pages, index);
+ rcu_read_unlock();
+ if (!page || radix_tree_exceptional_entry(page)) {
+ page = __page_cache_alloc(readahead_gfp_mask(mapping));
+ if (!page)
+ break;
+ page->index = index;
+ list_add(&page->lru, &pages);
+ nr_pages++;
+ }
+ }
+ blk_start_plug(&plug);
+ ext4_mpage_readpages(mapping, &pages, NULL, nr_pages, true);
+ blk_finish_plug(&plug);
+}
+
+static struct page *ext4_read_merkle_tree_page(struct inode *inode,
+ pgoff_t index,
+ unsigned long num_ra_pages)
+{
+ struct page *page;
+
+ index += ext4_verity_metadata_pos(inode) >> PAGE_SHIFT;
+
+ page = find_get_page_flags(inode->i_mapping, index, FGP_ACCESSED);
+ if (!page || !PageUptodate(page)) {
+ if (page)
+ put_page(page);
+ else if (num_ra_pages > 1)
+ ext4_merkle_tree_readahead(inode->i_mapping, index,
+ num_ra_pages);
+ page = read_mapping_page(inode->i_mapping, index, NULL);
+ }
+ return page;
+}
+
+static int ext4_write_merkle_tree_block(struct inode *inode, const void *buf,
+ u64 index, int log_blocksize)
+{
+ loff_t pos = ext4_verity_metadata_pos(inode) + (index << log_blocksize);
+
+ return pagecache_write(inode, buf, 1 << log_blocksize, pos);
+}
+
+const struct fsverity_operations ext4_verityops = {
+ .begin_enable_verity = ext4_begin_enable_verity,
+ .end_enable_verity = ext4_end_enable_verity,
+ .get_verity_descriptor = ext4_get_verity_descriptor,
+ .read_merkle_tree_page = ext4_read_merkle_tree_page,
+ .write_merkle_tree_block = ext4_write_merkle_tree_block,
+};
diff --git a/fs/f2fs/Kconfig b/fs/f2fs/Kconfig
index 9a20ef42..79eed58 100644
--- a/fs/f2fs/Kconfig
+++ b/fs/f2fs/Kconfig
@@ -1,8 +1,11 @@
config F2FS_FS
tristate "F2FS filesystem support"
depends on BLOCK
+ select NLS
select CRYPTO
select CRYPTO_CRC32
+ select F2FS_FS_XATTR if FS_ENCRYPTION
+ select FS_ENCRYPTION_ALGS if FS_ENCRYPTION
help
F2FS is based on Log-structured File System (LFS), which supports
versatile "flash-friendly" features. The design has been focused on
@@ -18,7 +21,7 @@
config F2FS_STAT_FS
bool "F2FS Status Information"
- depends on F2FS_FS && DEBUG_FS
+ depends on F2FS_FS
default y
help
/sys/kernel/debug/f2fs/ contains information about all the partitions
@@ -58,7 +61,9 @@
Security Models (LSMs) accepted by AppArmor, SELinux, Smack and TOMOYO
Linux. This option enables an extended attribute handler for file
security labels in the f2fs filesystem, so that it requires enabling
- the extended attribute support in advance.
+ the extended attribute support in advance. In particular you need this
+ option if you use the setcap command to assign initial process capabi-
+ lities to executables (the security.* extended attributes).
If you are not using a security module, say N.
@@ -73,13 +78,11 @@
config F2FS_FS_ENCRYPTION
bool "F2FS Encryption"
depends on F2FS_FS
- depends on F2FS_FS_XATTR
select FS_ENCRYPTION
help
- Enable encryption of f2fs files and directories. This
- feature is similar to ecryptfs, but it is more memory
- efficient since it avoids caching the encrypted and
- decrypted pages in the page cache.
+ This kconfig symbol is deprecated; now it just selects
+ FS_ENCRYPTION. Use CONFIG_FS_ENCRYPTION=y in new config
+ files.
config F2FS_IO_TRACE
bool "F2FS IO tracer"
@@ -98,3 +101,37 @@
Test F2FS to inject faults such as ENOMEM, ENOSPC, and so on.
If unsure, say N.
+
+config F2FS_FS_COMPRESSION
+ bool "F2FS compression feature"
+ depends on F2FS_FS
+ help
+ Enable filesystem-level compression on f2fs regular files,
+ multiple back-end compression algorithms are supported.
+
+config F2FS_FS_LZO
+ bool "LZO compression support"
+ depends on F2FS_FS_COMPRESSION
+ select LZO_COMPRESS
+ select LZO_DECOMPRESS
+ default y
+ help
+ Support LZO compress algorithm, if unsure, say Y.
+
+config F2FS_FS_LZ4
+ bool "LZ4 compression support"
+ depends on F2FS_FS_COMPRESSION
+ select LZ4_COMPRESS
+ select LZ4_DECOMPRESS
+ default y
+ help
+ Support LZ4 compress algorithm, if unsure, say Y.
+
+config F2FS_FS_ZSTD
+ bool "ZSTD compression support"
+ depends on F2FS_FS_COMPRESSION
+ select ZSTD_COMPRESS
+ select ZSTD_DECOMPRESS
+ default y
+ help
+ Support ZSTD compress algorithm, if unsure, say Y.
diff --git a/fs/f2fs/Makefile b/fs/f2fs/Makefile
index 776c4b93..ee7316b 100644
--- a/fs/f2fs/Makefile
+++ b/fs/f2fs/Makefile
@@ -8,3 +8,5 @@
f2fs-$(CONFIG_F2FS_FS_XATTR) += xattr.o
f2fs-$(CONFIG_F2FS_FS_POSIX_ACL) += acl.o
f2fs-$(CONFIG_F2FS_IO_TRACE) += trace.o
+f2fs-$(CONFIG_FS_VERITY) += verity.o
+f2fs-$(CONFIG_F2FS_FS_COMPRESSION) += compress.o
diff --git a/fs/f2fs/OWNERS b/fs/f2fs/OWNERS
new file mode 100644
index 0000000..f981f44
--- /dev/null
+++ b/fs/f2fs/OWNERS
@@ -0,0 +1,2 @@
+# include OWNERS from the authoritative android-mainline branch
+include kernel/common:android-mainline:/fs/f2fs/OWNERS
diff --git a/fs/f2fs/acl.c b/fs/f2fs/acl.c
index b9fe937..217b290 100644
--- a/fs/f2fs/acl.c
+++ b/fs/f2fs/acl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* fs/f2fs/acl.c
*
@@ -7,10 +8,6 @@
* Portions of this code from linux/fs/ext2/acl.c
*
* Copyright (C) 2001-2003 Andreas Gruenbacher, <agruen@suse.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/f2fs_fs.h>
#include "f2fs.h"
@@ -53,6 +50,9 @@ static struct posix_acl *f2fs_acl_from_disk(const char *value, size_t size)
struct f2fs_acl_entry *entry = (struct f2fs_acl_entry *)(hdr + 1);
const char *end = value + size;
+ if (size < sizeof(struct f2fs_acl_header))
+ return ERR_PTR(-EINVAL);
+
if (hdr->a_version != cpu_to_le32(F2FS_ACL_VERSION))
return ERR_PTR(-EINVAL);
@@ -160,7 +160,7 @@ static void *f2fs_acl_to_disk(struct f2fs_sb_info *sbi,
return (void *)f2fs_acl;
fail:
- kfree(f2fs_acl);
+ kvfree(f2fs_acl);
return ERR_PTR(-EINVAL);
}
@@ -190,7 +190,7 @@ static struct posix_acl *__f2fs_get_acl(struct inode *inode, int type,
acl = NULL;
else
acl = ERR_PTR(retval);
- kfree(value);
+ kvfree(value);
return acl;
}
@@ -240,7 +240,7 @@ static int __f2fs_set_acl(struct inode *inode, int type,
error = f2fs_setxattr(inode, name_index, "", value, size, ipage, 0);
- kfree(value);
+ kvfree(value);
if (!error)
set_cached_acl(inode, type, acl);
@@ -285,7 +285,7 @@ static int f2fs_acl_create_masq(struct posix_acl *acl, umode_t *mode_p)
/* assert(atomic_read(acl->a_refcount) == 1); */
FOREACH_ACL_ENTRY(pa, acl, pe) {
- switch(pa->e_tag) {
+ switch (pa->e_tag) {
case ACL_USER_OBJ:
pa->e_perm &= (mode >> 6) | ~S_IRWXO;
mode &= (pa->e_perm << 6) | ~S_IRWXU;
@@ -326,7 +326,7 @@ static int f2fs_acl_create_masq(struct posix_acl *acl, umode_t *mode_p)
}
*mode_p = (*mode_p & ~S_IRWXUGO) | mode;
- return not_equiv;
+ return not_equiv;
}
static int f2fs_acl_create(struct inode *dir, umode_t *mode,
@@ -396,12 +396,16 @@ int f2fs_init_acl(struct inode *inode, struct inode *dir, struct page *ipage,
error = __f2fs_set_acl(inode, ACL_TYPE_DEFAULT, default_acl,
ipage);
posix_acl_release(default_acl);
+ } else {
+ inode->i_default_acl = NULL;
}
if (acl) {
if (!error)
error = __f2fs_set_acl(inode, ACL_TYPE_ACCESS, acl,
ipage);
posix_acl_release(acl);
+ } else {
+ inode->i_acl = NULL;
}
return error;
diff --git a/fs/f2fs/acl.h b/fs/f2fs/acl.h
index 2c68518..124868c 100644
--- a/fs/f2fs/acl.h
+++ b/fs/f2fs/acl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* fs/f2fs/acl.h
*
@@ -7,10 +8,6 @@
* Portions of this code from linux/fs/ext2/acl.h
*
* Copyright (C) 2001-2003 Andreas Gruenbacher, <agruen@suse.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#ifndef __F2FS_ACL_H__
#define __F2FS_ACL_H__
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index a563de5..8270e924 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* fs/f2fs/checkpoint.c
*
* Copyright (c) 2012 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/fs.h>
#include <linux/bio.h>
@@ -47,15 +44,12 @@ struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index)
cond_resched();
goto repeat;
}
- f2fs_wait_on_page_writeback(page, META, true);
+ f2fs_wait_on_page_writeback(page, META, true, true);
if (!PageUptodate(page))
SetPageUptodate(page);
return page;
}
-/*
- * We guarantee no failure on the returned page.
- */
static struct page *__get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index,
bool is_meta)
{
@@ -69,7 +63,7 @@ static struct page *__get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index,
.old_blkaddr = index,
.new_blkaddr = index,
.encrypted_page = NULL,
- .is_meta = is_meta,
+ .is_por = !is_meta,
};
int err;
@@ -92,6 +86,8 @@ static struct page *__get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index,
return ERR_PTR(err);
}
+ f2fs_update_iostat(sbi, FS_META_READ_IO, F2FS_BLKSIZE);
+
lock_page(page);
if (unlikely(page->mapping != mapping)) {
f2fs_put_page(page, 1);
@@ -122,11 +118,8 @@ struct page *f2fs_get_meta_page_nofail(struct f2fs_sb_info *sbi, pgoff_t index)
if (PTR_ERR(page) == -EIO &&
++count <= DEFAULT_RETRY_IO_COUNT)
goto retry;
-
f2fs_stop_checkpoint(sbi, false);
- f2fs_bug_on(sbi, 1);
}
-
return page;
}
@@ -136,6 +129,30 @@ struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index)
return __get_meta_page(sbi, index, false);
}
+static bool __is_bitmap_valid(struct f2fs_sb_info *sbi, block_t blkaddr,
+ int type)
+{
+ struct seg_entry *se;
+ unsigned int segno, offset;
+ bool exist;
+
+ if (type != DATA_GENERIC_ENHANCE && type != DATA_GENERIC_ENHANCE_READ)
+ return true;
+
+ segno = GET_SEGNO(sbi, blkaddr);
+ offset = GET_BLKOFF_FROM_SEG0(sbi, blkaddr);
+ se = get_seg_entry(sbi, segno);
+
+ exist = f2fs_test_bit(offset, se->cur_valid_map);
+ if (!exist && type == DATA_GENERIC_ENHANCE) {
+ f2fs_err(sbi, "Inconsistent error blkaddr:%u, sit bitmap:%d",
+ blkaddr, exist);
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
+ WARN_ON(1);
+ }
+ return exist;
+}
+
bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
block_t blkaddr, int type)
{
@@ -157,15 +174,22 @@ bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
return false;
break;
case META_POR:
- case DATA_GENERIC:
if (unlikely(blkaddr >= MAX_BLKADDR(sbi) ||
- blkaddr < MAIN_BLKADDR(sbi))) {
- if (type == DATA_GENERIC) {
- f2fs_msg(sbi->sb, KERN_WARNING,
- "access invalid blkaddr:%u", blkaddr);
- WARN_ON(1);
- }
+ blkaddr < MAIN_BLKADDR(sbi)))
return false;
+ break;
+ case DATA_GENERIC:
+ case DATA_GENERIC_ENHANCE:
+ case DATA_GENERIC_ENHANCE_READ:
+ if (unlikely(blkaddr >= MAX_BLKADDR(sbi) ||
+ blkaddr < MAIN_BLKADDR(sbi))) {
+ f2fs_warn(sbi, "access invalid blkaddr:%u",
+ blkaddr);
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
+ WARN_ON(1);
+ return false;
+ } else {
+ return __is_bitmap_valid(sbi, blkaddr, type);
}
break;
case META_GENERIC:
@@ -181,7 +205,7 @@ bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
}
/*
- * Readahead CP/NAT/SIT/SSA pages
+ * Readahead CP/NAT/SIT/SSA/POR pages
*/
int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
int type, bool sync)
@@ -195,9 +219,10 @@ int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
.op_flags = sync ? (REQ_META | REQ_PRIO) : REQ_RAHEAD,
.encrypted_page = NULL,
.in_list = false,
- .is_meta = (type != META_POR),
+ .is_por = (type == META_POR),
};
struct blk_plug plug;
+ int err;
if (unlikely(type == META_POR))
fio.op_flags &= ~REQ_META;
@@ -243,8 +268,11 @@ int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
}
fio.page = page;
- f2fs_submit_page_bio(&fio);
- f2fs_put_page(page, 0);
+ err = f2fs_submit_page_bio(&fio);
+ f2fs_put_page(page, err ? 1 : 0);
+
+ if (!err)
+ f2fs_update_iostat(sbi, FS_META_READ_IO, F2FS_BLKSIZE);
}
out:
blk_finish_plug(&plug);
@@ -284,8 +312,7 @@ static int __f2fs_write_meta_page(struct page *page,
dec_page_count(sbi, F2FS_DIRTY_META);
if (wbc->for_reclaim)
- f2fs_submit_merged_write_cond(sbi, page->mapping->host,
- 0, page->index, META);
+ f2fs_submit_merged_write_cond(sbi, NULL, page, 0, META);
unlock_page(page);
@@ -315,8 +342,9 @@ static int f2fs_write_meta_pages(struct address_space *mapping,
goto skip_write;
/* collect a number of dirty meta pages and write together */
- if (wbc->for_kupdate ||
- get_pages(sbi, F2FS_DIRTY_META) < nr_pages_to_skip(sbi, META))
+ if (wbc->sync_mode != WB_SYNC_ALL &&
+ get_pages(sbi, F2FS_DIRTY_META) <
+ nr_pages_to_skip(sbi, META))
goto skip_write;
/* if locked failed, cp will flush dirty pages instead */
@@ -379,9 +407,8 @@ long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
goto continue_unlock;
}
- f2fs_wait_on_page_writeback(page, META, true);
+ f2fs_wait_on_page_writeback(page, META, true, true);
- BUG_ON(PageWriteback(page));
if (!clear_page_dirty_for_io(page))
goto continue_unlock;
@@ -415,7 +442,7 @@ static int f2fs_set_meta_page_dirty(struct page *page)
if (!PageDirty(page)) {
__set_page_dirty_nobuffers(page);
inc_page_count(F2FS_P_SB(page), F2FS_DIRTY_META);
- SetPagePrivate(page);
+ f2fs_set_page_private(page, 0);
f2fs_trace_pid(page);
return 1;
}
@@ -559,7 +586,7 @@ int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi)
if (time_to_inject(sbi, FAULT_ORPHAN)) {
spin_unlock(&im->ino_lock);
- f2fs_show_injection_info(FAULT_ORPHAN);
+ f2fs_show_injection_info(sbi, FAULT_ORPHAN);
return -ENOSPC;
}
@@ -635,9 +662,8 @@ static int recover_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino)
err_out:
set_sbi_flag(sbi, SBI_NEED_FSCK);
- f2fs_msg(sbi->sb, KERN_WARNING,
- "%s: orphan failed (ino=%x), run fsck to fix.",
- __func__, ino);
+ f2fs_warn(sbi, "%s: orphan failed (ino=%x), run fsck to fix.",
+ __func__, ino);
return err;
}
@@ -653,8 +679,13 @@ int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi)
if (!is_set_ckpt_flags(sbi, CP_ORPHAN_PRESENT_FLAG))
return 0;
+ if (bdev_read_only(sbi->sb->s_bdev)) {
+ f2fs_info(sbi, "write access unavailable, skipping orphan cleanup");
+ return 0;
+ }
+
if (s_flags & SB_RDONLY) {
- f2fs_msg(sbi->sb, KERN_INFO, "orphan cleanup on readonly fs");
+ f2fs_info(sbi, "orphan cleanup on readonly fs");
sbi->sb->s_flags &= ~SB_RDONLY;
}
@@ -767,13 +798,27 @@ static void write_orphan_inodes(struct f2fs_sb_info *sbi, block_t start_blk)
}
}
+static __u32 f2fs_checkpoint_chksum(struct f2fs_sb_info *sbi,
+ struct f2fs_checkpoint *ckpt)
+{
+ unsigned int chksum_ofs = le32_to_cpu(ckpt->checksum_offset);
+ __u32 chksum;
+
+ chksum = f2fs_crc32(sbi, ckpt, chksum_ofs);
+ if (chksum_ofs < CP_CHKSUM_OFFSET) {
+ chksum_ofs += sizeof(chksum);
+ chksum = f2fs_chksum(sbi, chksum, (__u8 *)ckpt + chksum_ofs,
+ F2FS_BLKSIZE - chksum_ofs);
+ }
+ return chksum;
+}
+
static int get_checkpoint_version(struct f2fs_sb_info *sbi, block_t cp_addr,
struct f2fs_checkpoint **cp_block, struct page **cp_page,
unsigned long long *version)
{
- unsigned long blk_size = sbi->blocksize;
size_t crc_offset = 0;
- __u32 crc = 0;
+ __u32 crc;
*cp_page = f2fs_get_meta_page(sbi, cp_addr);
if (IS_ERR(*cp_page))
@@ -782,17 +827,17 @@ static int get_checkpoint_version(struct f2fs_sb_info *sbi, block_t cp_addr,
*cp_block = (struct f2fs_checkpoint *)page_address(*cp_page);
crc_offset = le32_to_cpu((*cp_block)->checksum_offset);
- if (crc_offset > (blk_size - sizeof(__le32))) {
+ if (crc_offset < CP_MIN_CHKSUM_OFFSET ||
+ crc_offset > CP_CHKSUM_OFFSET) {
f2fs_put_page(*cp_page, 1);
- f2fs_msg(sbi->sb, KERN_WARNING,
- "invalid crc_offset: %zu", crc_offset);
+ f2fs_warn(sbi, "invalid crc_offset: %zu", crc_offset);
return -EINVAL;
}
- crc = cur_cp_crc(*cp_block);
- if (!f2fs_crc_valid(sbi, crc, *cp_block, crc_offset)) {
+ crc = f2fs_checkpoint_chksum(sbi, *cp_block);
+ if (crc != cur_cp_crc(*cp_block)) {
f2fs_put_page(*cp_page, 1);
- f2fs_msg(sbi->sb, KERN_WARNING, "invalid crc value");
+ f2fs_warn(sbi, "invalid crc value");
return -EINVAL;
}
@@ -815,9 +860,8 @@ static struct page *validate_checkpoint(struct f2fs_sb_info *sbi,
if (le32_to_cpu(cp_block->cp_pack_total_block_count) >
sbi->blocks_per_seg) {
- f2fs_msg(sbi->sb, KERN_WARNING,
- "invalid cp_pack_total_block_count:%u",
- le32_to_cpu(cp_block->cp_pack_total_block_count));
+ f2fs_warn(sbi, "invalid cp_pack_total_block_count:%u",
+ le32_to_cpu(cp_block->cp_pack_total_block_count));
goto invalid_cp;
}
pre_version = *version;
@@ -853,13 +897,13 @@ int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi)
int i;
int err;
- sbi->ckpt = f2fs_kzalloc(sbi, array_size(blk_size, cp_blks),
- GFP_KERNEL);
+ sbi->ckpt = f2fs_kvzalloc(sbi, array_size(blk_size, cp_blks),
+ GFP_KERNEL);
if (!sbi->ckpt)
return -ENOMEM;
/*
* Finding out valid cp block involves read both
- * sets( cp pack1 and cp pack 2)
+ * sets( cp pack 1 and cp pack 2)
*/
cp_start_blk_no = le32_to_cpu(fsb->cp_blkaddr);
cp1 = validate_checkpoint(sbi, cp_start_blk_no, &cp1_version);
@@ -926,7 +970,7 @@ int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi)
f2fs_put_page(cp1, 1);
f2fs_put_page(cp2, 1);
fail_no_cp:
- kfree(sbi->ckpt);
+ kvfree(sbi->ckpt);
return err;
}
@@ -972,7 +1016,7 @@ void f2fs_update_dirty_page(struct inode *inode, struct page *page)
inode_inc_dirty_pages(inode);
spin_unlock(&sbi->inode_lock[type]);
- SetPagePrivate(page);
+ f2fs_set_page_private(page, 0);
f2fs_trace_pid(page);
}
@@ -1028,13 +1072,11 @@ int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type)
if (inode) {
unsigned long cur_ino = inode->i_ino;
- if (is_dir)
- F2FS_I(inode)->cp_task = current;
+ F2FS_I(inode)->cp_task = current;
filemap_fdatawrite(inode->i_mapping);
- if (is_dir)
- F2FS_I(inode)->cp_task = NULL;
+ F2FS_I(inode)->cp_task = NULL;
iput(inode);
/* We need to give cpu to another writers. */
@@ -1098,6 +1140,28 @@ static void __prepare_cp_block(struct f2fs_sb_info *sbi)
ckpt->next_free_nid = cpu_to_le32(last_nid);
}
+static bool __need_flush_quota(struct f2fs_sb_info *sbi)
+{
+ bool ret = false;
+
+ if (!is_journalled_quota(sbi))
+ return false;
+
+ down_write(&sbi->quota_sem);
+ if (is_sbi_flag_set(sbi, SBI_QUOTA_SKIP_FLUSH)) {
+ ret = false;
+ } else if (is_sbi_flag_set(sbi, SBI_QUOTA_NEED_REPAIR)) {
+ ret = false;
+ } else if (is_sbi_flag_set(sbi, SBI_QUOTA_NEED_FLUSH)) {
+ clear_sbi_flag(sbi, SBI_QUOTA_NEED_FLUSH);
+ ret = true;
+ } else if (get_pages(sbi, F2FS_DIRTY_QDATA)) {
+ ret = true;
+ }
+ up_write(&sbi->quota_sem);
+ return ret;
+}
+
/*
* Freeze all the FS-operations for checkpoint.
*/
@@ -1108,21 +1172,43 @@ static int block_operations(struct f2fs_sb_info *sbi)
.nr_to_write = LONG_MAX,
.for_reclaim = 0,
};
- struct blk_plug plug;
- int err = 0;
+ int err = 0, cnt = 0;
- blk_start_plug(&plug);
+ /*
+ * Let's flush inline_data in dirty node pages.
+ */
+ f2fs_flush_inline_data(sbi);
+
+retry_flush_quotas:
+ f2fs_lock_all(sbi);
+ if (__need_flush_quota(sbi)) {
+ int locked;
+
+ if (++cnt > DEFAULT_RETRY_QUOTA_FLUSH_COUNT) {
+ set_sbi_flag(sbi, SBI_QUOTA_SKIP_FLUSH);
+ set_sbi_flag(sbi, SBI_QUOTA_NEED_FLUSH);
+ goto retry_flush_dents;
+ }
+ f2fs_unlock_all(sbi);
+
+ /* only failed during mount/umount/freeze/quotactl */
+ locked = down_read_trylock(&sbi->sb->s_umount);
+ f2fs_quota_sync(sbi->sb, -1);
+ if (locked)
+ up_read(&sbi->sb->s_umount);
+ cond_resched();
+ goto retry_flush_quotas;
+ }
retry_flush_dents:
- f2fs_lock_all(sbi);
/* write all the dirty dentry pages */
if (get_pages(sbi, F2FS_DIRTY_DENTS)) {
f2fs_unlock_all(sbi);
err = f2fs_sync_dirty_inodes(sbi, DIR_INODE);
if (err)
- goto out;
+ return err;
cond_resched();
- goto retry_flush_dents;
+ goto retry_flush_quotas;
}
/*
@@ -1136,9 +1222,9 @@ static int block_operations(struct f2fs_sb_info *sbi)
f2fs_unlock_all(sbi);
err = f2fs_sync_inode_meta(sbi);
if (err)
- goto out;
+ return err;
cond_resched();
- goto retry_flush_dents;
+ goto retry_flush_quotas;
}
retry_flush_nodes:
@@ -1152,7 +1238,7 @@ static int block_operations(struct f2fs_sb_info *sbi)
if (err) {
up_write(&sbi->node_change);
f2fs_unlock_all(sbi);
- goto out;
+ return err;
}
cond_resched();
goto retry_flush_nodes;
@@ -1164,8 +1250,6 @@ static int block_operations(struct f2fs_sb_info *sbi)
*/
__prepare_cp_block(sbi);
up_write(&sbi->node_change);
-out:
- blk_finish_plug(&plug);
return err;
}
@@ -1175,20 +1259,23 @@ static void unblock_operations(struct f2fs_sb_info *sbi)
f2fs_unlock_all(sbi);
}
-void f2fs_wait_on_all_pages_writeback(struct f2fs_sb_info *sbi)
+void f2fs_wait_on_all_pages(struct f2fs_sb_info *sbi, int type)
{
DEFINE_WAIT(wait);
for (;;) {
prepare_to_wait(&sbi->cp_wait, &wait, TASK_UNINTERRUPTIBLE);
- if (!get_pages(sbi, F2FS_WB_CP_DATA))
+ if (!get_pages(sbi, type))
break;
if (unlikely(f2fs_cp_error(sbi)))
break;
- io_schedule_timeout(5*HZ);
+ if (type == F2FS_DIRTY_META)
+ f2fs_sync_meta_pages(sbi, META, LONG_MAX,
+ FS_CP_META_IO);
+ io_schedule_timeout(DEFAULT_IO_TIMEOUT);
}
finish_wait(&sbi->cp_wait, &wait);
}
@@ -1229,6 +1316,29 @@ static void update_ckpt_flags(struct f2fs_sb_info *sbi, struct cp_control *cpc)
if (is_sbi_flag_set(sbi, SBI_NEED_FSCK))
__set_ckpt_flags(ckpt, CP_FSCK_FLAG);
+ if (is_sbi_flag_set(sbi, SBI_IS_RESIZEFS))
+ __set_ckpt_flags(ckpt, CP_RESIZEFS_FLAG);
+ else
+ __clear_ckpt_flags(ckpt, CP_RESIZEFS_FLAG);
+
+ if (is_sbi_flag_set(sbi, SBI_CP_DISABLED))
+ __set_ckpt_flags(ckpt, CP_DISABLED_FLAG);
+ else
+ __clear_ckpt_flags(ckpt, CP_DISABLED_FLAG);
+
+ if (is_sbi_flag_set(sbi, SBI_CP_DISABLED_QUICK))
+ __set_ckpt_flags(ckpt, CP_DISABLED_QUICK_FLAG);
+ else
+ __clear_ckpt_flags(ckpt, CP_DISABLED_QUICK_FLAG);
+
+ if (is_sbi_flag_set(sbi, SBI_QUOTA_SKIP_FLUSH))
+ __set_ckpt_flags(ckpt, CP_QUOTA_NEED_FSCK_FLAG);
+ else
+ __clear_ckpt_flags(ckpt, CP_QUOTA_NEED_FSCK_FLAG);
+
+ if (is_sbi_flag_set(sbi, SBI_QUOTA_NEED_REPAIR))
+ __set_ckpt_flags(ckpt, CP_QUOTA_NEED_FSCK_FLAG);
+
/* set this flag to activate crc|cp_ver for recovery */
__set_ckpt_flags(ckpt, CP_CRC_RECOVERY_FLAG);
__clear_ckpt_flags(ckpt, CP_NOCRC_RECOVERY_FLAG);
@@ -1251,11 +1361,11 @@ static void commit_checkpoint(struct f2fs_sb_info *sbi,
struct page *page = f2fs_grab_meta_page(sbi, blk_addr);
int err;
- memcpy(page_address(page), src, PAGE_SIZE);
- set_page_dirty(page);
+ f2fs_wait_on_page_writeback(page, META, true, true);
- f2fs_wait_on_page_writeback(page, META, true);
- f2fs_bug_on(sbi, PageWriteback(page));
+ memcpy(page_address(page), src, PAGE_SIZE);
+
+ set_page_dirty(page);
if (unlikely(!clear_page_dirty_for_io(page)))
f2fs_bug_on(sbi, 1);
@@ -1289,16 +1399,9 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
int err;
/* Flush all the NAT/SIT pages */
- while (get_pages(sbi, F2FS_DIRTY_META)) {
- f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO);
- if (unlikely(f2fs_cp_error(sbi)))
- break;
- }
+ f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO);
- /*
- * modify checkpoint
- * version number is already updated
- */
+ /* start to update checkpoint, cp ver is already updated previously */
ckpt->elapsed_time = cpu_to_le64(get_mtime(sbi, true));
ckpt->free_segment_count = cpu_to_le32(free_segments(sbi));
for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) {
@@ -1347,7 +1450,7 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
get_sit_bitmap(sbi, __bitmap_ptr(sbi, SIT_BITMAP));
get_nat_bitmap(sbi, __bitmap_ptr(sbi, NAT_BITMAP));
- crc32 = f2fs_crc32(sbi, ckpt, le32_to_cpu(ckpt->checksum_offset));
+ crc32 = f2fs_checkpoint_chksum(sbi, ckpt);
*((__le32 *)((unsigned char *)ckpt +
le32_to_cpu(ckpt->checksum_offset)))
= cpu_to_le32(crc32);
@@ -1366,14 +1469,6 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
for (i = 0; i < nm_i->nat_bits_blocks; i++)
f2fs_update_meta_page(sbi, nm_i->nat_bits +
(i << F2FS_BLKSIZE_BITS), blk + i);
-
- /* Flush all the NAT BITS pages */
- while (get_pages(sbi, F2FS_DIRTY_META)) {
- f2fs_sync_meta_pages(sbi, META, LONG_MAX,
- FS_CP_META_IO);
- if (unlikely(f2fs_cp_error(sbi)))
- break;
- }
}
/* write out checkpoint buffer at block 0 */
@@ -1409,9 +1504,11 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
/* Here, we have one bio having CP pack except cp pack 2 page */
f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO);
+ /* Wait for all dirty meta pages to be submitted for IO */
+ f2fs_wait_on_all_pages(sbi, F2FS_DIRTY_META);
/* wait for previous submitted meta pages writeback */
- f2fs_wait_on_all_pages_writeback(sbi);
+ f2fs_wait_on_all_pages(sbi, F2FS_WB_CP_DATA);
/* flush all device cache */
err = f2fs_flush_device_cache(sbi);
@@ -1420,13 +1517,13 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
/* barrier and flush checkpoint cp pack 2 page if it can */
commit_checkpoint(sbi, ckpt, start_blk);
- f2fs_wait_on_all_pages_writeback(sbi);
+ f2fs_wait_on_all_pages(sbi, F2FS_WB_CP_DATA);
/*
- * invalidate intermediate page cache borrowed from meta inode
- * which are used for migration of encrypted inode's blocks.
+ * invalidate intermediate page cache borrowed from meta inode which are
+ * used for migration of encrypted or verity inode's blocks.
*/
- if (f2fs_sb_has_encrypt(sbi->sb))
+ if (f2fs_sb_has_encrypt(sbi) || f2fs_sb_has_verity(sbi))
invalidate_mapping_pages(META_MAPPING(sbi),
MAIN_BLKADDR(sbi), MAX_BLKADDR(sbi) - 1);
@@ -1436,6 +1533,12 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
clear_sbi_flag(sbi, SBI_IS_DIRTY);
clear_sbi_flag(sbi, SBI_NEED_CP);
+ clear_sbi_flag(sbi, SBI_QUOTA_SKIP_FLUSH);
+
+ spin_lock(&sbi->stat_lock);
+ sbi->unusable_block_count = 0;
+ spin_unlock(&sbi->stat_lock);
+
__set_cp_next_pack(sbi);
/*
@@ -1451,16 +1554,22 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
return unlikely(f2fs_cp_error(sbi)) ? -EIO : 0;
}
-/*
- * We guarantee that this checkpoint procedure will not fail.
- */
int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
{
struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
unsigned long long ckpt_ver;
int err = 0;
- mutex_lock(&sbi->cp_mutex);
+ if (f2fs_readonly(sbi->sb) || f2fs_hw_is_readonly(sbi))
+ return -EROFS;
+
+ if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
+ if (cpc->reason != CP_PAUSE)
+ return 0;
+ f2fs_warn(sbi, "Start checkpoint disabled!");
+ }
+ if (cpc->reason != CP_RESIZE)
+ mutex_lock(&sbi->cp_mutex);
if (!is_sbi_flag_set(sbi, SBI_IS_DIRTY) &&
((cpc->reason & CP_FASTBOOT) || (cpc->reason & CP_SYNC) ||
@@ -1470,10 +1579,6 @@ int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
err = -EIO;
goto out;
}
- if (f2fs_readonly(sbi->sb)) {
- err = -EROFS;
- goto out;
- }
trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "start block_ops");
@@ -1511,28 +1616,30 @@ int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
ckpt->checkpoint_ver = cpu_to_le64(++ckpt_ver);
/* write cached NAT/SIT entries to NAT/SIT area */
- f2fs_flush_nat_entries(sbi, cpc);
+ err = f2fs_flush_nat_entries(sbi, cpc);
+ if (err)
+ goto stop;
+
f2fs_flush_sit_entries(sbi, cpc);
- /* unlock all the fs_lock[] in do_checkpoint() */
err = do_checkpoint(sbi, cpc);
if (err)
f2fs_release_discard_addrs(sbi);
else
f2fs_clear_prefree_segments(sbi, cpc);
-
+stop:
unblock_operations(sbi);
stat_inc_cp_count(sbi->stat_info);
if (cpc->reason & CP_RECOVERY)
- f2fs_msg(sbi->sb, KERN_NOTICE,
- "checkpoint: version = %llx", ckpt_ver);
+ f2fs_notice(sbi, "checkpoint: version = %llx", ckpt_ver);
- /* do checkpoint periodically */
+ /* update CP_TIME to trigger checkpoint periodically */
f2fs_update_time(sbi, CP_TIME);
trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "finish checkpoint");
out:
- mutex_unlock(&sbi->cp_mutex);
+ if (cpc->reason != CP_RESIZE)
+ mutex_unlock(&sbi->cp_mutex);
return err;
}
diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
new file mode 100644
index 0000000..d6f622f
--- /dev/null
+++ b/fs/f2fs/compress.c
@@ -0,0 +1,1465 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * f2fs compress support
+ *
+ * Copyright (c) 2019 Chao Yu <chao@kernel.org>
+ */
+
+#include <linux/fs.h>
+#include <linux/f2fs_fs.h>
+#include <linux/writeback.h>
+#include <linux/backing-dev.h>
+#include <linux/lzo.h>
+#include <linux/lz4.h>
+#include <linux/zstd.h>
+#include <linux/moduleparam.h>
+
+#include "f2fs.h"
+#include "node.h"
+#include <trace/events/f2fs.h>
+
+struct f2fs_compress_ops {
+ int (*init_compress_ctx)(struct compress_ctx *cc);
+ void (*destroy_compress_ctx)(struct compress_ctx *cc);
+ int (*compress_pages)(struct compress_ctx *cc);
+ int (*init_decompress_ctx)(struct decompress_io_ctx *dic);
+ void (*destroy_decompress_ctx)(struct decompress_io_ctx *dic);
+ int (*decompress_pages)(struct decompress_io_ctx *dic);
+};
+
+static unsigned int offset_in_cluster(struct compress_ctx *cc, pgoff_t index)
+{
+ return index & (cc->cluster_size - 1);
+}
+
+static pgoff_t cluster_idx(struct compress_ctx *cc, pgoff_t index)
+{
+ return index >> cc->log_cluster_size;
+}
+
+static pgoff_t start_idx_of_cluster(struct compress_ctx *cc)
+{
+ return cc->cluster_idx << cc->log_cluster_size;
+}
+
+bool f2fs_is_compressed_page(struct page *page)
+{
+ if (!PagePrivate(page))
+ return false;
+ if (!page_private(page))
+ return false;
+ if (IS_ATOMIC_WRITTEN_PAGE(page) || IS_DUMMY_WRITTEN_PAGE(page))
+ return false;
+ f2fs_bug_on(F2FS_M_SB(page->mapping),
+ *((u32 *)page_private(page)) != F2FS_COMPRESSED_PAGE_MAGIC);
+ return true;
+}
+
+static void f2fs_set_compressed_page(struct page *page,
+ struct inode *inode, pgoff_t index, void *data)
+{
+ SetPagePrivate(page);
+ set_page_private(page, (unsigned long)data);
+
+ /* i_crypto_info and iv index */
+ page->index = index;
+ page->mapping = inode->i_mapping;
+}
+
+static void f2fs_drop_rpages(struct compress_ctx *cc, int len, bool unlock)
+{
+ int i;
+
+ for (i = 0; i < len; i++) {
+ if (!cc->rpages[i])
+ continue;
+ if (unlock)
+ unlock_page(cc->rpages[i]);
+ else
+ put_page(cc->rpages[i]);
+ }
+}
+
+static void f2fs_put_rpages(struct compress_ctx *cc)
+{
+ f2fs_drop_rpages(cc, cc->cluster_size, false);
+}
+
+static void f2fs_unlock_rpages(struct compress_ctx *cc, int len)
+{
+ f2fs_drop_rpages(cc, len, true);
+}
+
+static void f2fs_put_rpages_mapping(struct address_space *mapping,
+ pgoff_t start, int len)
+{
+ int i;
+
+ for (i = 0; i < len; i++) {
+ struct page *page = find_get_page(mapping, start + i);
+
+ put_page(page);
+ put_page(page);
+ }
+}
+
+static void f2fs_put_rpages_wbc(struct compress_ctx *cc,
+ struct writeback_control *wbc, bool redirty, int unlock)
+{
+ unsigned int i;
+
+ for (i = 0; i < cc->cluster_size; i++) {
+ if (!cc->rpages[i])
+ continue;
+ if (redirty)
+ redirty_page_for_writepage(wbc, cc->rpages[i]);
+ f2fs_put_page(cc->rpages[i], unlock);
+ }
+}
+
+struct page *f2fs_compress_control_page(struct page *page)
+{
+ return ((struct compress_io_ctx *)page_private(page))->rpages[0];
+}
+
+int f2fs_init_compress_ctx(struct compress_ctx *cc)
+{
+ struct f2fs_sb_info *sbi = F2FS_I_SB(cc->inode);
+
+ if (cc->nr_rpages)
+ return 0;
+
+ cc->rpages = f2fs_kzalloc(sbi, sizeof(struct page *) <<
+ cc->log_cluster_size, GFP_NOFS);
+ return cc->rpages ? 0 : -ENOMEM;
+}
+
+void f2fs_destroy_compress_ctx(struct compress_ctx *cc)
+{
+ kfree(cc->rpages);
+ cc->rpages = NULL;
+ cc->nr_rpages = 0;
+ cc->nr_cpages = 0;
+ cc->cluster_idx = NULL_CLUSTER;
+}
+
+void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct page *page)
+{
+ unsigned int cluster_ofs;
+
+ if (!f2fs_cluster_can_merge_page(cc, page->index))
+ f2fs_bug_on(F2FS_I_SB(cc->inode), 1);
+
+ cluster_ofs = offset_in_cluster(cc, page->index);
+ cc->rpages[cluster_ofs] = page;
+ cc->nr_rpages++;
+ cc->cluster_idx = cluster_idx(cc, page->index);
+}
+
+#ifdef CONFIG_F2FS_FS_LZO
+static int lzo_init_compress_ctx(struct compress_ctx *cc)
+{
+ cc->private = f2fs_kvmalloc(F2FS_I_SB(cc->inode),
+ LZO1X_MEM_COMPRESS, GFP_NOFS);
+ if (!cc->private)
+ return -ENOMEM;
+
+ cc->clen = lzo1x_worst_compress(PAGE_SIZE << cc->log_cluster_size);
+ return 0;
+}
+
+static void lzo_destroy_compress_ctx(struct compress_ctx *cc)
+{
+ kvfree(cc->private);
+ cc->private = NULL;
+}
+
+static int lzo_compress_pages(struct compress_ctx *cc)
+{
+ int ret;
+
+ ret = lzo1x_1_compress(cc->rbuf, cc->rlen, cc->cbuf->cdata,
+ &cc->clen, cc->private);
+ if (ret != LZO_E_OK) {
+ printk_ratelimited("%sF2FS-fs (%s): lzo compress failed, ret:%d\n",
+ KERN_ERR, F2FS_I_SB(cc->inode)->sb->s_id, ret);
+ return -EIO;
+ }
+ return 0;
+}
+
+static int lzo_decompress_pages(struct decompress_io_ctx *dic)
+{
+ int ret;
+
+ ret = lzo1x_decompress_safe(dic->cbuf->cdata, dic->clen,
+ dic->rbuf, &dic->rlen);
+ if (ret != LZO_E_OK) {
+ printk_ratelimited("%sF2FS-fs (%s): lzo decompress failed, ret:%d\n",
+ KERN_ERR, F2FS_I_SB(dic->inode)->sb->s_id, ret);
+ return -EIO;
+ }
+
+ if (dic->rlen != PAGE_SIZE << dic->log_cluster_size) {
+ printk_ratelimited("%sF2FS-fs (%s): lzo invalid rlen:%zu, "
+ "expected:%lu\n", KERN_ERR,
+ F2FS_I_SB(dic->inode)->sb->s_id,
+ dic->rlen,
+ PAGE_SIZE << dic->log_cluster_size);
+ return -EIO;
+ }
+ return 0;
+}
+
+static const struct f2fs_compress_ops f2fs_lzo_ops = {
+ .init_compress_ctx = lzo_init_compress_ctx,
+ .destroy_compress_ctx = lzo_destroy_compress_ctx,
+ .compress_pages = lzo_compress_pages,
+ .decompress_pages = lzo_decompress_pages,
+};
+#endif
+
+#ifdef CONFIG_F2FS_FS_LZ4
+static int lz4_init_compress_ctx(struct compress_ctx *cc)
+{
+ cc->private = f2fs_kvmalloc(F2FS_I_SB(cc->inode),
+ LZ4_MEM_COMPRESS, GFP_NOFS);
+ if (!cc->private)
+ return -ENOMEM;
+
+ /*
+ * we do not change cc->clen to LZ4_compressBound(inputsize) to
+ * adapt worst compress case, because lz4 compressor can handle
+ * output budget properly.
+ */
+ cc->clen = cc->rlen - PAGE_SIZE - COMPRESS_HEADER_SIZE;
+ return 0;
+}
+
+static void lz4_destroy_compress_ctx(struct compress_ctx *cc)
+{
+ kvfree(cc->private);
+ cc->private = NULL;
+}
+
+static int lz4_compress_pages(struct compress_ctx *cc)
+{
+ int len;
+
+ len = LZ4_compress_default(cc->rbuf, cc->cbuf->cdata, cc->rlen,
+ cc->clen, cc->private);
+ if (!len)
+ return -EAGAIN;
+
+ cc->clen = len;
+ return 0;
+}
+
+static int lz4_decompress_pages(struct decompress_io_ctx *dic)
+{
+ int ret;
+
+ ret = LZ4_decompress_safe(dic->cbuf->cdata, dic->rbuf,
+ dic->clen, dic->rlen);
+ if (ret < 0) {
+ printk_ratelimited("%sF2FS-fs (%s): lz4 decompress failed, ret:%d\n",
+ KERN_ERR, F2FS_I_SB(dic->inode)->sb->s_id, ret);
+ return -EIO;
+ }
+
+ if (ret != PAGE_SIZE << dic->log_cluster_size) {
+ printk_ratelimited("%sF2FS-fs (%s): lz4 invalid rlen:%zu, "
+ "expected:%lu\n", KERN_ERR,
+ F2FS_I_SB(dic->inode)->sb->s_id,
+ dic->rlen,
+ PAGE_SIZE << dic->log_cluster_size);
+ return -EIO;
+ }
+ return 0;
+}
+
+static const struct f2fs_compress_ops f2fs_lz4_ops = {
+ .init_compress_ctx = lz4_init_compress_ctx,
+ .destroy_compress_ctx = lz4_destroy_compress_ctx,
+ .compress_pages = lz4_compress_pages,
+ .decompress_pages = lz4_decompress_pages,
+};
+#endif
+
+#ifdef CONFIG_F2FS_FS_ZSTD
+#define F2FS_ZSTD_DEFAULT_CLEVEL 1
+
+static int zstd_init_compress_ctx(struct compress_ctx *cc)
+{
+ ZSTD_parameters params;
+ ZSTD_CStream *stream;
+ void *workspace;
+ unsigned int workspace_size;
+
+ params = ZSTD_getParams(F2FS_ZSTD_DEFAULT_CLEVEL, cc->rlen, 0);
+ workspace_size = ZSTD_CStreamWorkspaceBound(params.cParams);
+
+ workspace = f2fs_kvmalloc(F2FS_I_SB(cc->inode),
+ workspace_size, GFP_NOFS);
+ if (!workspace)
+ return -ENOMEM;
+
+ stream = ZSTD_initCStream(params, 0, workspace, workspace_size);
+ if (!stream) {
+ printk_ratelimited("%sF2FS-fs (%s): %s ZSTD_initCStream failed\n",
+ KERN_ERR, F2FS_I_SB(cc->inode)->sb->s_id,
+ __func__);
+ kvfree(workspace);
+ return -EIO;
+ }
+
+ cc->private = workspace;
+ cc->private2 = stream;
+
+ cc->clen = cc->rlen - PAGE_SIZE - COMPRESS_HEADER_SIZE;
+ return 0;
+}
+
+static void zstd_destroy_compress_ctx(struct compress_ctx *cc)
+{
+ kvfree(cc->private);
+ cc->private = NULL;
+ cc->private2 = NULL;
+}
+
+static int zstd_compress_pages(struct compress_ctx *cc)
+{
+ ZSTD_CStream *stream = cc->private2;
+ ZSTD_inBuffer inbuf;
+ ZSTD_outBuffer outbuf;
+ int src_size = cc->rlen;
+ int dst_size = src_size - PAGE_SIZE - COMPRESS_HEADER_SIZE;
+ int ret;
+
+ inbuf.pos = 0;
+ inbuf.src = cc->rbuf;
+ inbuf.size = src_size;
+
+ outbuf.pos = 0;
+ outbuf.dst = cc->cbuf->cdata;
+ outbuf.size = dst_size;
+
+ ret = ZSTD_compressStream(stream, &outbuf, &inbuf);
+ if (ZSTD_isError(ret)) {
+ printk_ratelimited("%sF2FS-fs (%s): %s ZSTD_compressStream failed, ret: %d\n",
+ KERN_ERR, F2FS_I_SB(cc->inode)->sb->s_id,
+ __func__, ZSTD_getErrorCode(ret));
+ return -EIO;
+ }
+
+ ret = ZSTD_endStream(stream, &outbuf);
+ if (ZSTD_isError(ret)) {
+ printk_ratelimited("%sF2FS-fs (%s): %s ZSTD_endStream returned %d\n",
+ KERN_ERR, F2FS_I_SB(cc->inode)->sb->s_id,
+ __func__, ZSTD_getErrorCode(ret));
+ return -EIO;
+ }
+
+ /*
+ * there is compressed data remained in intermediate buffer due to
+ * no more space in cbuf.cdata
+ */
+ if (ret)
+ return -EAGAIN;
+
+ cc->clen = outbuf.pos;
+ return 0;
+}
+
+static int zstd_init_decompress_ctx(struct decompress_io_ctx *dic)
+{
+ ZSTD_DStream *stream;
+ void *workspace;
+ unsigned int workspace_size;
+
+ workspace_size = ZSTD_DStreamWorkspaceBound(MAX_COMPRESS_WINDOW_SIZE);
+
+ workspace = f2fs_kvmalloc(F2FS_I_SB(dic->inode),
+ workspace_size, GFP_NOFS);
+ if (!workspace)
+ return -ENOMEM;
+
+ stream = ZSTD_initDStream(MAX_COMPRESS_WINDOW_SIZE,
+ workspace, workspace_size);
+ if (!stream) {
+ printk_ratelimited("%sF2FS-fs (%s): %s ZSTD_initDStream failed\n",
+ KERN_ERR, F2FS_I_SB(dic->inode)->sb->s_id,
+ __func__);
+ kvfree(workspace);
+ return -EIO;
+ }
+
+ dic->private = workspace;
+ dic->private2 = stream;
+
+ return 0;
+}
+
+static void zstd_destroy_decompress_ctx(struct decompress_io_ctx *dic)
+{
+ kvfree(dic->private);
+ dic->private = NULL;
+ dic->private2 = NULL;
+}
+
+static int zstd_decompress_pages(struct decompress_io_ctx *dic)
+{
+ ZSTD_DStream *stream = dic->private2;
+ ZSTD_inBuffer inbuf;
+ ZSTD_outBuffer outbuf;
+ int ret;
+
+ inbuf.pos = 0;
+ inbuf.src = dic->cbuf->cdata;
+ inbuf.size = dic->clen;
+
+ outbuf.pos = 0;
+ outbuf.dst = dic->rbuf;
+ outbuf.size = dic->rlen;
+
+ ret = ZSTD_decompressStream(stream, &outbuf, &inbuf);
+ if (ZSTD_isError(ret)) {
+ printk_ratelimited("%sF2FS-fs (%s): %s ZSTD_compressStream failed, ret: %d\n",
+ KERN_ERR, F2FS_I_SB(dic->inode)->sb->s_id,
+ __func__, ZSTD_getErrorCode(ret));
+ return -EIO;
+ }
+
+ if (dic->rlen != outbuf.pos) {
+ printk_ratelimited("%sF2FS-fs (%s): %s ZSTD invalid rlen:%zu, "
+ "expected:%lu\n", KERN_ERR,
+ F2FS_I_SB(dic->inode)->sb->s_id,
+ __func__, dic->rlen,
+ PAGE_SIZE << dic->log_cluster_size);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static const struct f2fs_compress_ops f2fs_zstd_ops = {
+ .init_compress_ctx = zstd_init_compress_ctx,
+ .destroy_compress_ctx = zstd_destroy_compress_ctx,
+ .compress_pages = zstd_compress_pages,
+ .init_decompress_ctx = zstd_init_decompress_ctx,
+ .destroy_decompress_ctx = zstd_destroy_decompress_ctx,
+ .decompress_pages = zstd_decompress_pages,
+};
+#endif
+
+static const struct f2fs_compress_ops *f2fs_cops[COMPRESS_MAX] = {
+#ifdef CONFIG_F2FS_FS_LZO
+ &f2fs_lzo_ops,
+#else
+ NULL,
+#endif
+#ifdef CONFIG_F2FS_FS_LZ4
+ &f2fs_lz4_ops,
+#else
+ NULL,
+#endif
+#ifdef CONFIG_F2FS_FS_ZSTD
+ &f2fs_zstd_ops,
+#else
+ NULL,
+#endif
+};
+
+bool f2fs_is_compress_backend_ready(struct inode *inode)
+{
+ if (!f2fs_compressed_file(inode))
+ return true;
+ return f2fs_cops[F2FS_I(inode)->i_compress_algorithm];
+}
+
+static mempool_t *compress_page_pool = NULL;
+static int num_compress_pages = 512;
+module_param(num_compress_pages, uint, 0444);
+MODULE_PARM_DESC(num_compress_pages,
+ "Number of intermediate compress pages to preallocate");
+
+int f2fs_init_compress_mempool(void)
+{
+ compress_page_pool = mempool_create_page_pool(num_compress_pages, 0);
+ if (!compress_page_pool)
+ return -ENOMEM;
+
+ return 0;
+}
+
+void f2fs_destroy_compress_mempool(void)
+{
+ mempool_destroy(compress_page_pool);
+}
+
+static struct page *f2fs_compress_alloc_page(void)
+{
+ struct page *page;
+
+ page = mempool_alloc(compress_page_pool, GFP_NOFS);
+ lock_page(page);
+
+ return page;
+}
+
+static void f2fs_compress_free_page(struct page *page)
+{
+ if (!page)
+ return;
+ set_page_private(page, (unsigned long)NULL);
+ ClearPagePrivate(page);
+ page->mapping = NULL;
+ unlock_page(page);
+ mempool_free(page, compress_page_pool);
+}
+
+static int f2fs_compress_pages(struct compress_ctx *cc)
+{
+ struct f2fs_sb_info *sbi = F2FS_I_SB(cc->inode);
+ struct f2fs_inode_info *fi = F2FS_I(cc->inode);
+ const struct f2fs_compress_ops *cops =
+ f2fs_cops[fi->i_compress_algorithm];
+ unsigned int max_len, nr_cpages;
+ int i, ret;
+
+ trace_f2fs_compress_pages_start(cc->inode, cc->cluster_idx,
+ cc->cluster_size, fi->i_compress_algorithm);
+
+ if (cops->init_compress_ctx) {
+ ret = cops->init_compress_ctx(cc);
+ if (ret)
+ goto out;
+ }
+
+ max_len = COMPRESS_HEADER_SIZE + cc->clen;
+ cc->nr_cpages = DIV_ROUND_UP(max_len, PAGE_SIZE);
+
+ cc->cpages = f2fs_kzalloc(sbi, sizeof(struct page *) *
+ cc->nr_cpages, GFP_NOFS);
+ if (!cc->cpages) {
+ ret = -ENOMEM;
+ goto destroy_compress_ctx;
+ }
+
+ for (i = 0; i < cc->nr_cpages; i++) {
+ cc->cpages[i] = f2fs_compress_alloc_page();
+ if (!cc->cpages[i]) {
+ ret = -ENOMEM;
+ goto out_free_cpages;
+ }
+ }
+
+ cc->rbuf = vmap(cc->rpages, cc->cluster_size, VM_MAP, PAGE_KERNEL_RO);
+ if (!cc->rbuf) {
+ ret = -ENOMEM;
+ goto out_free_cpages;
+ }
+
+ cc->cbuf = vmap(cc->cpages, cc->nr_cpages, VM_MAP, PAGE_KERNEL);
+ if (!cc->cbuf) {
+ ret = -ENOMEM;
+ goto out_vunmap_rbuf;
+ }
+
+ ret = cops->compress_pages(cc);
+ if (ret)
+ goto out_vunmap_cbuf;
+
+ max_len = PAGE_SIZE * (cc->cluster_size - 1) - COMPRESS_HEADER_SIZE;
+
+ if (cc->clen > max_len) {
+ ret = -EAGAIN;
+ goto out_vunmap_cbuf;
+ }
+
+ cc->cbuf->clen = cpu_to_le32(cc->clen);
+
+ for (i = 0; i < COMPRESS_DATA_RESERVED_SIZE; i++)
+ cc->cbuf->reserved[i] = cpu_to_le32(0);
+
+ nr_cpages = DIV_ROUND_UP(cc->clen + COMPRESS_HEADER_SIZE, PAGE_SIZE);
+
+ /* zero out any unused part of the last page */
+ memset(&cc->cbuf->cdata[cc->clen], 0,
+ (nr_cpages * PAGE_SIZE) - (cc->clen + COMPRESS_HEADER_SIZE));
+
+ vunmap(cc->cbuf);
+ vunmap(cc->rbuf);
+
+ for (i = nr_cpages; i < cc->nr_cpages; i++) {
+ f2fs_compress_free_page(cc->cpages[i]);
+ cc->cpages[i] = NULL;
+ }
+
+ if (cops->destroy_compress_ctx)
+ cops->destroy_compress_ctx(cc);
+
+ cc->nr_cpages = nr_cpages;
+
+ trace_f2fs_compress_pages_end(cc->inode, cc->cluster_idx,
+ cc->clen, ret);
+ return 0;
+
+out_vunmap_cbuf:
+ vunmap(cc->cbuf);
+out_vunmap_rbuf:
+ vunmap(cc->rbuf);
+out_free_cpages:
+ for (i = 0; i < cc->nr_cpages; i++) {
+ if (cc->cpages[i])
+ f2fs_compress_free_page(cc->cpages[i]);
+ }
+ kfree(cc->cpages);
+ cc->cpages = NULL;
+destroy_compress_ctx:
+ if (cops->destroy_compress_ctx)
+ cops->destroy_compress_ctx(cc);
+out:
+ trace_f2fs_compress_pages_end(cc->inode, cc->cluster_idx,
+ cc->clen, ret);
+ return ret;
+}
+
+void f2fs_decompress_pages(struct bio *bio, struct page *page, bool verity)
+{
+ struct decompress_io_ctx *dic =
+ (struct decompress_io_ctx *)page_private(page);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(dic->inode);
+ struct f2fs_inode_info *fi= F2FS_I(dic->inode);
+ const struct f2fs_compress_ops *cops =
+ f2fs_cops[fi->i_compress_algorithm];
+ int ret;
+
+ dec_page_count(sbi, F2FS_RD_DATA);
+
+ if (bio->bi_status || PageError(page))
+ dic->failed = true;
+
+ if (refcount_dec_not_one(&dic->ref))
+ return;
+
+ trace_f2fs_decompress_pages_start(dic->inode, dic->cluster_idx,
+ dic->cluster_size, fi->i_compress_algorithm);
+
+ /* submit partial compressed pages */
+ if (dic->failed) {
+ ret = -EIO;
+ goto out_free_dic;
+ }
+
+ if (cops->init_decompress_ctx) {
+ ret = cops->init_decompress_ctx(dic);
+ if (ret)
+ goto out_free_dic;
+ }
+
+ dic->rbuf = vmap(dic->tpages, dic->cluster_size, VM_MAP, PAGE_KERNEL);
+ if (!dic->rbuf) {
+ ret = -ENOMEM;
+ goto destroy_decompress_ctx;
+ }
+
+ dic->cbuf = vmap(dic->cpages, dic->nr_cpages, VM_MAP, PAGE_KERNEL_RO);
+ if (!dic->cbuf) {
+ ret = -ENOMEM;
+ goto out_vunmap_rbuf;
+ }
+
+ dic->clen = le32_to_cpu(dic->cbuf->clen);
+ dic->rlen = PAGE_SIZE << dic->log_cluster_size;
+
+ if (dic->clen > PAGE_SIZE * dic->nr_cpages - COMPRESS_HEADER_SIZE) {
+ ret = -EFSCORRUPTED;
+ goto out_vunmap_cbuf;
+ }
+
+ ret = cops->decompress_pages(dic);
+
+out_vunmap_cbuf:
+ vunmap(dic->cbuf);
+out_vunmap_rbuf:
+ vunmap(dic->rbuf);
+destroy_decompress_ctx:
+ if (cops->destroy_decompress_ctx)
+ cops->destroy_decompress_ctx(dic);
+out_free_dic:
+ if (verity)
+ refcount_set(&dic->ref, dic->nr_cpages);
+ if (!verity)
+ f2fs_decompress_end_io(dic->rpages, dic->cluster_size,
+ ret, false);
+
+ trace_f2fs_decompress_pages_end(dic->inode, dic->cluster_idx,
+ dic->clen, ret);
+ if (!verity)
+ f2fs_free_dic(dic);
+}
+
+static bool is_page_in_cluster(struct compress_ctx *cc, pgoff_t index)
+{
+ if (cc->cluster_idx == NULL_CLUSTER)
+ return true;
+ return cc->cluster_idx == cluster_idx(cc, index);
+}
+
+bool f2fs_cluster_is_empty(struct compress_ctx *cc)
+{
+ return cc->nr_rpages == 0;
+}
+
+static bool f2fs_cluster_is_full(struct compress_ctx *cc)
+{
+ return cc->cluster_size == cc->nr_rpages;
+}
+
+bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index)
+{
+ if (f2fs_cluster_is_empty(cc))
+ return true;
+ return is_page_in_cluster(cc, index);
+}
+
+static bool __cluster_may_compress(struct compress_ctx *cc)
+{
+ struct f2fs_sb_info *sbi = F2FS_I_SB(cc->inode);
+ loff_t i_size = i_size_read(cc->inode);
+ unsigned nr_pages = DIV_ROUND_UP(i_size, PAGE_SIZE);
+ int i;
+
+ for (i = 0; i < cc->cluster_size; i++) {
+ struct page *page = cc->rpages[i];
+
+ f2fs_bug_on(sbi, !page);
+
+ if (unlikely(f2fs_cp_error(sbi)))
+ return false;
+ if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
+ return false;
+
+ /* beyond EOF */
+ if (page->index >= nr_pages)
+ return false;
+ }
+ return true;
+}
+
+static int __f2fs_cluster_blocks(struct compress_ctx *cc, bool compr)
+{
+ struct dnode_of_data dn;
+ int ret;
+
+ set_new_dnode(&dn, cc->inode, NULL, NULL, 0);
+ ret = f2fs_get_dnode_of_data(&dn, start_idx_of_cluster(cc),
+ LOOKUP_NODE);
+ if (ret) {
+ if (ret == -ENOENT)
+ ret = 0;
+ goto fail;
+ }
+
+ if (dn.data_blkaddr == COMPRESS_ADDR) {
+ int i;
+
+ ret = 1;
+ for (i = 1; i < cc->cluster_size; i++) {
+ block_t blkaddr;
+
+ blkaddr = data_blkaddr(dn.inode,
+ dn.node_page, dn.ofs_in_node + i);
+ if (compr) {
+ if (__is_valid_data_blkaddr(blkaddr))
+ ret++;
+ } else {
+ if (blkaddr != NULL_ADDR)
+ ret++;
+ }
+ }
+ }
+fail:
+ f2fs_put_dnode(&dn);
+ return ret;
+}
+
+/* return # of compressed blocks in compressed cluster */
+static int f2fs_compressed_blocks(struct compress_ctx *cc)
+{
+ return __f2fs_cluster_blocks(cc, true);
+}
+
+/* return # of valid blocks in compressed cluster */
+static int f2fs_cluster_blocks(struct compress_ctx *cc, bool compr)
+{
+ return __f2fs_cluster_blocks(cc, false);
+}
+
+int f2fs_is_compressed_cluster(struct inode *inode, pgoff_t index)
+{
+ struct compress_ctx cc = {
+ .inode = inode,
+ .log_cluster_size = F2FS_I(inode)->i_log_cluster_size,
+ .cluster_size = F2FS_I(inode)->i_cluster_size,
+ .cluster_idx = index >> F2FS_I(inode)->i_log_cluster_size,
+ };
+
+ return f2fs_cluster_blocks(&cc, false);
+}
+
+static bool cluster_may_compress(struct compress_ctx *cc)
+{
+ if (!f2fs_compressed_file(cc->inode))
+ return false;
+ if (f2fs_is_atomic_file(cc->inode))
+ return false;
+ if (f2fs_is_mmap_file(cc->inode))
+ return false;
+ if (!f2fs_cluster_is_full(cc))
+ return false;
+ if (unlikely(f2fs_cp_error(F2FS_I_SB(cc->inode))))
+ return false;
+ return __cluster_may_compress(cc);
+}
+
+static void set_cluster_writeback(struct compress_ctx *cc)
+{
+ int i;
+
+ for (i = 0; i < cc->cluster_size; i++) {
+ if (cc->rpages[i])
+ set_page_writeback(cc->rpages[i]);
+ }
+}
+
+static void set_cluster_dirty(struct compress_ctx *cc)
+{
+ int i;
+
+ for (i = 0; i < cc->cluster_size; i++)
+ if (cc->rpages[i])
+ set_page_dirty(cc->rpages[i]);
+}
+
+static int prepare_compress_overwrite(struct compress_ctx *cc,
+ struct page **pagep, pgoff_t index, void **fsdata)
+{
+ struct f2fs_sb_info *sbi = F2FS_I_SB(cc->inode);
+ struct address_space *mapping = cc->inode->i_mapping;
+ struct page *page;
+ struct dnode_of_data dn;
+ sector_t last_block_in_bio;
+ unsigned fgp_flag = FGP_LOCK | FGP_WRITE | FGP_CREAT;
+ pgoff_t start_idx = start_idx_of_cluster(cc);
+ int i, ret;
+ bool prealloc;
+
+retry:
+ ret = f2fs_cluster_blocks(cc, false);
+ if (ret <= 0)
+ return ret;
+
+ /* compressed case */
+ prealloc = (ret < cc->cluster_size);
+
+ ret = f2fs_init_compress_ctx(cc);
+ if (ret)
+ return ret;
+
+ /* keep page reference to avoid page reclaim */
+ for (i = 0; i < cc->cluster_size; i++) {
+ page = f2fs_pagecache_get_page(mapping, start_idx + i,
+ fgp_flag, GFP_NOFS);
+ if (!page) {
+ ret = -ENOMEM;
+ goto unlock_pages;
+ }
+
+ if (PageUptodate(page))
+ unlock_page(page);
+ else
+ f2fs_compress_ctx_add_page(cc, page);
+ }
+
+ if (!f2fs_cluster_is_empty(cc)) {
+ struct bio *bio = NULL;
+
+ ret = f2fs_read_multi_pages(cc, &bio, cc->cluster_size,
+ &last_block_in_bio, false, true);
+ f2fs_destroy_compress_ctx(cc);
+ if (ret)
+ goto release_pages;
+ if (bio)
+ f2fs_submit_bio(sbi, bio, DATA);
+
+ ret = f2fs_init_compress_ctx(cc);
+ if (ret)
+ goto release_pages;
+ }
+
+ for (i = 0; i < cc->cluster_size; i++) {
+ f2fs_bug_on(sbi, cc->rpages[i]);
+
+ page = find_lock_page(mapping, start_idx + i);
+ f2fs_bug_on(sbi, !page);
+
+ f2fs_wait_on_page_writeback(page, DATA, true, true);
+
+ f2fs_compress_ctx_add_page(cc, page);
+ f2fs_put_page(page, 0);
+
+ if (!PageUptodate(page)) {
+ f2fs_unlock_rpages(cc, i + 1);
+ f2fs_put_rpages_mapping(mapping, start_idx,
+ cc->cluster_size);
+ f2fs_destroy_compress_ctx(cc);
+ goto retry;
+ }
+ }
+
+ if (prealloc) {
+ __do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, true);
+
+ set_new_dnode(&dn, cc->inode, NULL, NULL, 0);
+
+ for (i = cc->cluster_size - 1; i > 0; i--) {
+ ret = f2fs_get_block(&dn, start_idx + i);
+ if (ret) {
+ i = cc->cluster_size;
+ break;
+ }
+
+ if (dn.data_blkaddr != NEW_ADDR)
+ break;
+ }
+
+ __do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, false);
+ }
+
+ if (likely(!ret)) {
+ *fsdata = cc->rpages;
+ *pagep = cc->rpages[offset_in_cluster(cc, index)];
+ return cc->cluster_size;
+ }
+
+unlock_pages:
+ f2fs_unlock_rpages(cc, i);
+release_pages:
+ f2fs_put_rpages_mapping(mapping, start_idx, i);
+ f2fs_destroy_compress_ctx(cc);
+ return ret;
+}
+
+int f2fs_prepare_compress_overwrite(struct inode *inode,
+ struct page **pagep, pgoff_t index, void **fsdata)
+{
+ struct compress_ctx cc = {
+ .inode = inode,
+ .log_cluster_size = F2FS_I(inode)->i_log_cluster_size,
+ .cluster_size = F2FS_I(inode)->i_cluster_size,
+ .cluster_idx = index >> F2FS_I(inode)->i_log_cluster_size,
+ .rpages = NULL,
+ .nr_rpages = 0,
+ };
+
+ return prepare_compress_overwrite(&cc, pagep, index, fsdata);
+}
+
+bool f2fs_compress_write_end(struct inode *inode, void *fsdata,
+ pgoff_t index, unsigned copied)
+
+{
+ struct compress_ctx cc = {
+ .log_cluster_size = F2FS_I(inode)->i_log_cluster_size,
+ .cluster_size = F2FS_I(inode)->i_cluster_size,
+ .rpages = fsdata,
+ };
+ bool first_index = (index == cc.rpages[0]->index);
+
+ if (copied)
+ set_cluster_dirty(&cc);
+
+ f2fs_put_rpages_wbc(&cc, NULL, false, 1);
+ f2fs_destroy_compress_ctx(&cc);
+
+ return first_index;
+}
+
+int f2fs_truncate_partial_cluster(struct inode *inode, u64 from, bool lock)
+{
+ void *fsdata = NULL;
+ struct page *pagep;
+ int log_cluster_size = F2FS_I(inode)->i_log_cluster_size;
+ pgoff_t start_idx = from >> (PAGE_SHIFT + log_cluster_size) <<
+ log_cluster_size;
+ int err;
+
+ err = f2fs_is_compressed_cluster(inode, start_idx);
+ if (err < 0)
+ return err;
+
+ /* truncate normal cluster */
+ if (!err)
+ return f2fs_do_truncate_blocks(inode, from, lock);
+
+ /* truncate compressed cluster */
+ err = f2fs_prepare_compress_overwrite(inode, &pagep,
+ start_idx, &fsdata);
+
+ /* should not be a normal cluster */
+ f2fs_bug_on(F2FS_I_SB(inode), err == 0);
+
+ if (err <= 0)
+ return err;
+
+ if (err > 0) {
+ struct page **rpages = fsdata;
+ int cluster_size = F2FS_I(inode)->i_cluster_size;
+ int i;
+
+ for (i = cluster_size - 1; i >= 0; i--) {
+ loff_t start = rpages[i]->index << PAGE_SHIFT;
+
+ if (from <= start) {
+ zero_user_segment(rpages[i], 0, PAGE_SIZE);
+ } else {
+ zero_user_segment(rpages[i], from - start,
+ PAGE_SIZE);
+ break;
+ }
+ }
+
+ f2fs_compress_write_end(inode, fsdata, start_idx, true);
+ }
+ return 0;
+}
+
+static int f2fs_write_compressed_pages(struct compress_ctx *cc,
+ int *submitted,
+ struct writeback_control *wbc,
+ enum iostat_type io_type)
+{
+ struct inode *inode = cc->inode;
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+ struct f2fs_inode_info *fi = F2FS_I(inode);
+ struct f2fs_io_info fio = {
+ .sbi = sbi,
+ .ino = cc->inode->i_ino,
+ .type = DATA,
+ .op = REQ_OP_WRITE,
+ .op_flags = wbc_to_write_flags(wbc),
+ .old_blkaddr = NEW_ADDR,
+ .page = NULL,
+ .encrypted_page = NULL,
+ .compressed_page = NULL,
+ .submitted = false,
+ .io_type = io_type,
+ .io_wbc = wbc,
+ .encrypted = f2fs_encrypted_file(cc->inode),
+ };
+ struct dnode_of_data dn;
+ struct node_info ni;
+ struct compress_io_ctx *cic;
+ pgoff_t start_idx = start_idx_of_cluster(cc);
+ unsigned int last_index = cc->cluster_size - 1;
+ loff_t psize;
+ int i, err;
+
+ if (!IS_NOQUOTA(inode) && !f2fs_trylock_op(sbi))
+ return -EAGAIN;
+
+ set_new_dnode(&dn, cc->inode, NULL, NULL, 0);
+
+ err = f2fs_get_dnode_of_data(&dn, start_idx, LOOKUP_NODE);
+ if (err)
+ goto out_unlock_op;
+
+ for (i = 0; i < cc->cluster_size; i++) {
+ if (data_blkaddr(dn.inode, dn.node_page,
+ dn.ofs_in_node + i) == NULL_ADDR)
+ goto out_put_dnode;
+ }
+
+ psize = (loff_t)(cc->rpages[last_index]->index + 1) << PAGE_SHIFT;
+
+ err = f2fs_get_node_info(fio.sbi, dn.nid, &ni);
+ if (err)
+ goto out_put_dnode;
+
+ fio.version = ni.version;
+
+ cic = f2fs_kzalloc(sbi, sizeof(struct compress_io_ctx), GFP_NOFS);
+ if (!cic)
+ goto out_put_dnode;
+
+ cic->magic = F2FS_COMPRESSED_PAGE_MAGIC;
+ cic->inode = inode;
+ refcount_set(&cic->ref, cc->nr_cpages);
+ cic->rpages = f2fs_kzalloc(sbi, sizeof(struct page *) <<
+ cc->log_cluster_size, GFP_NOFS);
+ if (!cic->rpages)
+ goto out_put_cic;
+
+ cic->nr_rpages = cc->cluster_size;
+
+ for (i = 0; i < cc->nr_cpages; i++) {
+ f2fs_set_compressed_page(cc->cpages[i], inode,
+ cc->rpages[i + 1]->index, cic);
+ fio.compressed_page = cc->cpages[i];
+ if (fio.encrypted) {
+ fio.page = cc->rpages[i + 1];
+ err = f2fs_encrypt_one_page(&fio);
+ if (err)
+ goto out_destroy_crypt;
+ if (fscrypt_inode_uses_fs_layer_crypto(inode))
+ cc->cpages[i] = fio.encrypted_page;
+ }
+ }
+
+ set_cluster_writeback(cc);
+
+ for (i = 0; i < cc->cluster_size; i++)
+ cic->rpages[i] = cc->rpages[i];
+
+ for (i = 0; i < cc->cluster_size; i++, dn.ofs_in_node++) {
+ block_t blkaddr;
+
+ blkaddr = f2fs_data_blkaddr(&dn);
+ fio.page = cc->rpages[i];
+ fio.old_blkaddr = blkaddr;
+
+ /* cluster header */
+ if (i == 0) {
+ if (blkaddr == COMPRESS_ADDR)
+ fio.compr_blocks++;
+ if (__is_valid_data_blkaddr(blkaddr))
+ f2fs_invalidate_blocks(sbi, blkaddr);
+ f2fs_update_data_blkaddr(&dn, COMPRESS_ADDR);
+ goto unlock_continue;
+ }
+
+ if (fio.compr_blocks && __is_valid_data_blkaddr(blkaddr))
+ fio.compr_blocks++;
+
+ if (i > cc->nr_cpages) {
+ if (__is_valid_data_blkaddr(blkaddr)) {
+ f2fs_invalidate_blocks(sbi, blkaddr);
+ f2fs_update_data_blkaddr(&dn, NEW_ADDR);
+ }
+ goto unlock_continue;
+ }
+
+ f2fs_bug_on(fio.sbi, blkaddr == NULL_ADDR);
+
+ if (fio.encrypted && fscrypt_inode_uses_fs_layer_crypto(inode))
+ fio.encrypted_page = cc->cpages[i - 1];
+ else
+ fio.compressed_page = cc->cpages[i - 1];
+
+ cc->cpages[i - 1] = NULL;
+ f2fs_outplace_write_data(&dn, &fio);
+ (*submitted)++;
+unlock_continue:
+ inode_dec_dirty_pages(cc->inode);
+ unlock_page(fio.page);
+ }
+
+ if (fio.compr_blocks)
+ f2fs_i_compr_blocks_update(inode, fio.compr_blocks - 1, false);
+ f2fs_i_compr_blocks_update(inode, cc->nr_cpages, true);
+
+ set_inode_flag(cc->inode, FI_APPEND_WRITE);
+ if (cc->cluster_idx == 0)
+ set_inode_flag(inode, FI_FIRST_BLOCK_WRITTEN);
+
+ f2fs_put_dnode(&dn);
+ if (!IS_NOQUOTA(inode))
+ f2fs_unlock_op(sbi);
+
+ spin_lock(&fi->i_size_lock);
+ if (fi->last_disk_size < psize)
+ fi->last_disk_size = psize;
+ spin_unlock(&fi->i_size_lock);
+
+ f2fs_put_rpages(cc);
+ f2fs_destroy_compress_ctx(cc);
+ return 0;
+
+out_destroy_crypt:
+ kfree(cic->rpages);
+
+ for (--i; i >= 0; i--)
+ fscrypt_finalize_bounce_page(&cc->cpages[i]);
+ for (i = 0; i < cc->nr_cpages; i++) {
+ if (!cc->cpages[i])
+ continue;
+ f2fs_put_page(cc->cpages[i], 1);
+ }
+out_put_cic:
+ kfree(cic);
+out_put_dnode:
+ f2fs_put_dnode(&dn);
+out_unlock_op:
+ if (!IS_NOQUOTA(inode))
+ f2fs_unlock_op(sbi);
+ return -EAGAIN;
+}
+
+void f2fs_compress_write_end_io(struct bio *bio, struct page *page)
+{
+ struct f2fs_sb_info *sbi = bio->bi_private;
+ struct compress_io_ctx *cic =
+ (struct compress_io_ctx *)page_private(page);
+ int i;
+
+ if (unlikely(bio->bi_status))
+ mapping_set_error(cic->inode->i_mapping, -EIO);
+
+ f2fs_compress_free_page(page);
+
+ dec_page_count(sbi, F2FS_WB_DATA);
+
+ if (refcount_dec_not_one(&cic->ref))
+ return;
+
+ for (i = 0; i < cic->nr_rpages; i++) {
+ WARN_ON(!cic->rpages[i]);
+ clear_cold_data(cic->rpages[i]);
+ end_page_writeback(cic->rpages[i]);
+ }
+
+ kfree(cic->rpages);
+ kfree(cic);
+}
+
+static int f2fs_write_raw_pages(struct compress_ctx *cc,
+ int *submitted,
+ struct writeback_control *wbc,
+ enum iostat_type io_type)
+{
+ struct address_space *mapping = cc->inode->i_mapping;
+ int _submitted, compr_blocks, ret;
+ int i = -1, err = 0;
+
+ compr_blocks = f2fs_compressed_blocks(cc);
+ if (compr_blocks < 0) {
+ err = compr_blocks;
+ goto out_err;
+ }
+
+ for (i = 0; i < cc->cluster_size; i++) {
+ if (!cc->rpages[i])
+ continue;
+retry_write:
+ if (cc->rpages[i]->mapping != mapping) {
+ unlock_page(cc->rpages[i]);
+ continue;
+ }
+
+ BUG_ON(!PageLocked(cc->rpages[i]));
+
+ ret = f2fs_write_single_data_page(cc->rpages[i], &_submitted,
+ NULL, NULL, wbc, io_type,
+ compr_blocks);
+ if (ret) {
+ if (ret == AOP_WRITEPAGE_ACTIVATE) {
+ unlock_page(cc->rpages[i]);
+ ret = 0;
+ } else if (ret == -EAGAIN) {
+ /*
+ * for quota file, just redirty left pages to
+ * avoid deadlock caused by cluster update race
+ * from foreground operation.
+ */
+ if (IS_NOQUOTA(cc->inode)) {
+ err = 0;
+ goto out_err;
+ }
+ ret = 0;
+ cond_resched();
+ congestion_wait(BLK_RW_ASYNC,
+ DEFAULT_IO_TIMEOUT);
+ lock_page(cc->rpages[i]);
+ clear_page_dirty_for_io(cc->rpages[i]);
+ goto retry_write;
+ }
+ err = ret;
+ goto out_err;
+ }
+
+ *submitted += _submitted;
+ }
+ return 0;
+out_err:
+ for (++i; i < cc->cluster_size; i++) {
+ if (!cc->rpages[i])
+ continue;
+ redirty_page_for_writepage(wbc, cc->rpages[i]);
+ unlock_page(cc->rpages[i]);
+ }
+ return err;
+}
+
+int f2fs_write_multi_pages(struct compress_ctx *cc,
+ int *submitted,
+ struct writeback_control *wbc,
+ enum iostat_type io_type)
+{
+ struct f2fs_inode_info *fi = F2FS_I(cc->inode);
+ const struct f2fs_compress_ops *cops =
+ f2fs_cops[fi->i_compress_algorithm];
+ int err;
+
+ *submitted = 0;
+ if (cluster_may_compress(cc)) {
+ err = f2fs_compress_pages(cc);
+ if (err == -EAGAIN) {
+ goto write;
+ } else if (err) {
+ f2fs_put_rpages_wbc(cc, wbc, true, 1);
+ goto destroy_out;
+ }
+
+ err = f2fs_write_compressed_pages(cc, submitted,
+ wbc, io_type);
+ cops->destroy_compress_ctx(cc);
+ if (!err)
+ return 0;
+ f2fs_bug_on(F2FS_I_SB(cc->inode), err != -EAGAIN);
+ }
+write:
+ f2fs_bug_on(F2FS_I_SB(cc->inode), *submitted);
+
+ err = f2fs_write_raw_pages(cc, submitted, wbc, io_type);
+ f2fs_put_rpages_wbc(cc, wbc, false, 0);
+destroy_out:
+ f2fs_destroy_compress_ctx(cc);
+ return err;
+}
+
+struct decompress_io_ctx *f2fs_alloc_dic(struct compress_ctx *cc)
+{
+ struct f2fs_sb_info *sbi = F2FS_I_SB(cc->inode);
+ struct decompress_io_ctx *dic;
+ pgoff_t start_idx = start_idx_of_cluster(cc);
+ int i;
+
+ dic = f2fs_kzalloc(sbi, sizeof(struct decompress_io_ctx), GFP_NOFS);
+ if (!dic)
+ return ERR_PTR(-ENOMEM);
+
+ dic->rpages = f2fs_kzalloc(sbi, sizeof(struct page *) <<
+ cc->log_cluster_size, GFP_NOFS);
+ if (!dic->rpages) {
+ kfree(dic);
+ return ERR_PTR(-ENOMEM);
+ }
+
+ dic->magic = F2FS_COMPRESSED_PAGE_MAGIC;
+ dic->inode = cc->inode;
+ refcount_set(&dic->ref, cc->nr_cpages);
+ dic->cluster_idx = cc->cluster_idx;
+ dic->cluster_size = cc->cluster_size;
+ dic->log_cluster_size = cc->log_cluster_size;
+ dic->nr_cpages = cc->nr_cpages;
+ dic->failed = false;
+
+ for (i = 0; i < dic->cluster_size; i++)
+ dic->rpages[i] = cc->rpages[i];
+ dic->nr_rpages = cc->cluster_size;
+
+ dic->cpages = f2fs_kzalloc(sbi, sizeof(struct page *) *
+ dic->nr_cpages, GFP_NOFS);
+ if (!dic->cpages)
+ goto out_free;
+
+ for (i = 0; i < dic->nr_cpages; i++) {
+ struct page *page;
+
+ page = f2fs_compress_alloc_page();
+ if (!page)
+ goto out_free;
+
+ f2fs_set_compressed_page(page, cc->inode,
+ start_idx + i + 1, dic);
+ dic->cpages[i] = page;
+ }
+
+ dic->tpages = f2fs_kzalloc(sbi, sizeof(struct page *) *
+ dic->cluster_size, GFP_NOFS);
+ if (!dic->tpages)
+ goto out_free;
+
+ for (i = 0; i < dic->cluster_size; i++) {
+ if (cc->rpages[i]) {
+ dic->tpages[i] = cc->rpages[i];
+ continue;
+ }
+
+ dic->tpages[i] = f2fs_compress_alloc_page();
+ if (!dic->tpages[i])
+ goto out_free;
+ }
+
+ return dic;
+
+out_free:
+ f2fs_free_dic(dic);
+ return ERR_PTR(-ENOMEM);
+}
+
+void f2fs_free_dic(struct decompress_io_ctx *dic)
+{
+ int i;
+
+ if (dic->tpages) {
+ for (i = 0; i < dic->cluster_size; i++) {
+ if (dic->rpages[i])
+ continue;
+ if (!dic->tpages[i])
+ continue;
+ f2fs_compress_free_page(dic->tpages[i]);
+ }
+ kfree(dic->tpages);
+ }
+
+ if (dic->cpages) {
+ for (i = 0; i < dic->nr_cpages; i++) {
+ if (!dic->cpages[i])
+ continue;
+ f2fs_compress_free_page(dic->cpages[i]);
+ }
+ kfree(dic->cpages);
+ }
+
+ kfree(dic->rpages);
+ kfree(dic);
+}
+
+void f2fs_decompress_end_io(struct page **rpages,
+ unsigned int cluster_size, bool err, bool verity)
+{
+ int i;
+
+ for (i = 0; i < cluster_size; i++) {
+ struct page *rpage = rpages[i];
+
+ if (!rpage)
+ continue;
+
+ if (err || PageError(rpage))
+ goto clear_uptodate;
+
+ if (!verity || fsverity_verify_page(rpage)) {
+ SetPageUptodate(rpage);
+ goto unlock;
+ }
+clear_uptodate:
+ ClearPageUptodate(rpage);
+ ClearPageError(rpage);
+unlock:
+ unlock_page(rpage);
+ }
+}
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index c63f5e3..345ef91 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* fs/f2fs/data.c
*
* Copyright (c) 2012 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/fs.h>
#include <linux/f2fs_fs.h>
@@ -17,6 +14,7 @@
#include <linux/pagevec.h>
#include <linux/blkdev.h>
#include <linux/bio.h>
+#include <linux/swap.h>
#include <linux/prefetch.h>
#include <linux/uio.h>
#include <linux/cleancache.h>
@@ -27,11 +25,50 @@
#include "segment.h"
#include "trace.h"
#include <trace/events/f2fs.h>
+#include <trace/events/android_fs.h>
#define NUM_PREALLOC_POST_READ_CTXS 128
static struct kmem_cache *bio_post_read_ctx_cache;
+static struct kmem_cache *bio_entry_slab;
static mempool_t *bio_post_read_ctx_pool;
+static struct bio_set f2fs_bioset;
+
+#define F2FS_BIO_POOL_SIZE NR_CURSEG_TYPE
+
+int __init f2fs_init_bioset(void)
+{
+ if (bioset_init(&f2fs_bioset, F2FS_BIO_POOL_SIZE,
+ 0, BIOSET_NEED_BVECS))
+ return -ENOMEM;
+ return 0;
+}
+
+void f2fs_destroy_bioset(void)
+{
+ bioset_exit(&f2fs_bioset);
+}
+
+static inline struct bio *__f2fs_bio_alloc(gfp_t gfp_mask,
+ unsigned int nr_iovecs)
+{
+ return bio_alloc_bioset(gfp_mask, nr_iovecs, &f2fs_bioset);
+}
+
+struct bio *f2fs_bio_alloc(struct f2fs_sb_info *sbi, int npages, bool noio)
+{
+ if (noio) {
+ /* No failure on bio allocation */
+ return __f2fs_bio_alloc(GFP_NOIO, npages);
+ }
+
+ if (time_to_inject(sbi, FAULT_ALLOC_BIO)) {
+ f2fs_show_injection_info(sbi, FAULT_ALLOC_BIO);
+ return NULL;
+ }
+
+ return __f2fs_bio_alloc(GFP_KERNEL, npages);
+}
static bool __is_cp_guaranteed(struct page *page)
{
@@ -42,6 +79,9 @@ static bool __is_cp_guaranteed(struct page *page)
if (!mapping)
return false;
+ if (f2fs_is_compressed_page(page))
+ return false;
+
inode = mapping->host;
sbi = F2FS_I_SB(inode);
@@ -49,26 +89,45 @@ static bool __is_cp_guaranteed(struct page *page)
inode->i_ino == F2FS_NODE_INO(sbi) ||
S_ISDIR(inode->i_mode) ||
(S_ISREG(inode->i_mode) &&
- is_inode_flag_set(inode, FI_ATOMIC_FILE)) ||
+ (f2fs_is_atomic_file(inode) || IS_NOQUOTA(inode))) ||
is_cold_data(page))
return true;
return false;
}
+static enum count_type __read_io_type(struct page *page)
+{
+ struct address_space *mapping = page_file_mapping(page);
+
+ if (mapping) {
+ struct inode *inode = mapping->host;
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+
+ if (inode->i_ino == F2FS_META_INO(sbi))
+ return F2FS_RD_META;
+
+ if (inode->i_ino == F2FS_NODE_INO(sbi))
+ return F2FS_RD_NODE;
+ }
+ return F2FS_RD_DATA;
+}
+
/* postprocessing steps for read bios */
enum bio_post_read_step {
- STEP_INITIAL = 0,
STEP_DECRYPT,
+ STEP_DECOMPRESS_NOWQ, /* handle normal cluster data inplace */
+ STEP_DECOMPRESS, /* handle compressed cluster data in workqueue */
+ STEP_VERITY,
};
struct bio_post_read_ctx {
struct bio *bio;
+ struct f2fs_sb_info *sbi;
struct work_struct work;
- unsigned int cur_step;
unsigned int enabled_steps;
};
-static void __read_end_io(struct bio *bio)
+static void __read_end_io(struct bio *bio, bool compr, bool verity)
{
struct page *page;
struct bio_vec *bv;
@@ -77,6 +136,15 @@ static void __read_end_io(struct bio *bio)
bio_for_each_segment_all(bv, bio, i) {
page = bv->bv_page;
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+ if (compr && f2fs_is_compressed_page(page)) {
+ f2fs_decompress_pages(bio, page, verity);
+ continue;
+ }
+ if (verity)
+ continue;
+#endif
+
/* PG_error was set if any post_read step failed */
if (bio->bi_status || PageError(page)) {
ClearPageUptodate(page);
@@ -85,62 +153,192 @@ static void __read_end_io(struct bio *bio)
} else {
SetPageUptodate(page);
}
+ dec_page_count(F2FS_P_SB(page), __read_io_type(page));
unlock_page(page);
}
- if (bio->bi_private)
- mempool_free(bio->bi_private, bio_post_read_ctx_pool);
- bio_put(bio);
+}
+
+static void f2fs_release_read_bio(struct bio *bio);
+static void __f2fs_read_end_io(struct bio *bio, bool compr, bool verity)
+{
+ if (!compr)
+ __read_end_io(bio, false, verity);
+ f2fs_release_read_bio(bio);
+}
+
+static void f2fs_decompress_bio(struct bio *bio, bool verity)
+{
+ __read_end_io(bio, true, verity);
}
static void bio_post_read_processing(struct bio_post_read_ctx *ctx);
-static void decrypt_work(struct work_struct *work)
+static void f2fs_decrypt_work(struct bio_post_read_ctx *ctx)
+{
+ fscrypt_decrypt_bio(ctx->bio);
+}
+
+static void f2fs_decompress_work(struct bio_post_read_ctx *ctx)
+{
+ f2fs_decompress_bio(ctx->bio, ctx->enabled_steps & (1 << STEP_VERITY));
+}
+
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+static void f2fs_verify_pages(struct page **rpages, unsigned int cluster_size)
+{
+ f2fs_decompress_end_io(rpages, cluster_size, false, true);
+}
+
+static void f2fs_verify_bio(struct bio *bio)
+{
+ struct bio_vec *bv;
+ int i;
+
+ bio_for_each_segment_all(bv, bio, i) {
+ struct page *page = bv->bv_page;
+ struct decompress_io_ctx *dic;
+
+ dic = (struct decompress_io_ctx *)page_private(page);
+
+ if (dic) {
+ if (refcount_dec_not_one(&dic->ref))
+ continue;
+ f2fs_verify_pages(dic->rpages,
+ dic->cluster_size);
+ f2fs_free_dic(dic);
+ continue;
+ }
+
+ if (bio->bi_status || PageError(page))
+ goto clear_uptodate;
+
+ if (fsverity_verify_page(page)) {
+ SetPageUptodate(page);
+ goto unlock;
+ }
+clear_uptodate:
+ ClearPageUptodate(page);
+ ClearPageError(page);
+unlock:
+ dec_page_count(F2FS_P_SB(page), __read_io_type(page));
+ unlock_page(page);
+ }
+}
+#endif
+
+static void f2fs_verity_work(struct work_struct *work)
+{
+ struct bio_post_read_ctx *ctx =
+ container_of(work, struct bio_post_read_ctx, work);
+ struct bio *bio = ctx->bio;
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+ unsigned int enabled_steps = ctx->enabled_steps;
+#endif
+
+ /*
+ * fsverity_verify_bio() may call readpages() again, and while verity
+ * will be disabled for this, decryption may still be needed, resulting
+ * in another bio_post_read_ctx being allocated. So to prevent
+ * deadlocks we need to release the current ctx to the mempool first.
+ * This assumes that verity is the last post-read step.
+ */
+ mempool_free(ctx, bio_post_read_ctx_pool);
+ bio->bi_private = NULL;
+
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+ /* previous step is decompression */
+ if (enabled_steps & (1 << STEP_DECOMPRESS)) {
+ f2fs_verify_bio(bio);
+ f2fs_release_read_bio(bio);
+ return;
+ }
+#endif
+
+ fsverity_verify_bio(bio);
+ __f2fs_read_end_io(bio, false, false);
+}
+
+static void f2fs_post_read_work(struct work_struct *work)
{
struct bio_post_read_ctx *ctx =
container_of(work, struct bio_post_read_ctx, work);
- fscrypt_decrypt_bio(ctx->bio);
+ if (ctx->enabled_steps & (1 << STEP_DECRYPT))
+ f2fs_decrypt_work(ctx);
- bio_post_read_processing(ctx);
+ if (ctx->enabled_steps & (1 << STEP_DECOMPRESS))
+ f2fs_decompress_work(ctx);
+
+ if (ctx->enabled_steps & (1 << STEP_VERITY)) {
+ INIT_WORK(&ctx->work, f2fs_verity_work);
+ fsverity_enqueue_verify_work(&ctx->work);
+ return;
+ }
+
+ __f2fs_read_end_io(ctx->bio,
+ ctx->enabled_steps & (1 << STEP_DECOMPRESS), false);
+}
+
+static void f2fs_enqueue_post_read_work(struct f2fs_sb_info *sbi,
+ struct work_struct *work)
+{
+ queue_work(sbi->post_read_wq, work);
}
static void bio_post_read_processing(struct bio_post_read_ctx *ctx)
{
- switch (++ctx->cur_step) {
- case STEP_DECRYPT:
- if (ctx->enabled_steps & (1 << STEP_DECRYPT)) {
- INIT_WORK(&ctx->work, decrypt_work);
- fscrypt_enqueue_decrypt_work(&ctx->work);
- return;
- }
- ctx->cur_step++;
- /* fall-through */
- default:
- __read_end_io(ctx->bio);
+ /*
+ * We use different work queues for decryption and for verity because
+ * verity may require reading metadata pages that need decryption, and
+ * we shouldn't recurse to the same workqueue.
+ */
+
+ if (ctx->enabled_steps & (1 << STEP_DECRYPT) ||
+ ctx->enabled_steps & (1 << STEP_DECOMPRESS)) {
+ INIT_WORK(&ctx->work, f2fs_post_read_work);
+ f2fs_enqueue_post_read_work(ctx->sbi, &ctx->work);
+ return;
}
+
+ if (ctx->enabled_steps & (1 << STEP_VERITY)) {
+ INIT_WORK(&ctx->work, f2fs_verity_work);
+ fsverity_enqueue_verify_work(&ctx->work);
+ return;
+ }
+
+ __f2fs_read_end_io(ctx->bio, false, false);
}
static bool f2fs_bio_post_read_required(struct bio *bio)
{
- return bio->bi_private && !bio->bi_status;
+ return bio->bi_private;
}
static void f2fs_read_end_io(struct bio *bio)
{
- if (time_to_inject(F2FS_P_SB(bio_first_page_all(bio)), FAULT_IO)) {
- f2fs_show_injection_info(FAULT_IO);
+ struct page *first_page = bio->bi_io_vec[0].bv_page;
+ struct f2fs_sb_info *sbi = F2FS_P_SB(first_page);
+
+ if (time_to_inject(sbi, FAULT_READ_IO)) {
+ f2fs_show_injection_info(sbi, FAULT_READ_IO);
bio->bi_status = BLK_STS_IOERR;
}
if (f2fs_bio_post_read_required(bio)) {
struct bio_post_read_ctx *ctx = bio->bi_private;
- ctx->cur_step = STEP_INITIAL;
bio_post_read_processing(ctx);
return;
}
- __read_end_io(bio);
+ if (first_page != NULL &&
+ __read_io_type(first_page) == F2FS_RD_DATA) {
+ trace_android_fs_dataread_end(first_page->mapping->host,
+ page_offset(first_page),
+ bio->bi_iter.bi_size);
+ }
+
+ __f2fs_read_end_io(bio, false, false);
}
static void f2fs_write_end_io(struct bio *bio)
@@ -149,6 +347,11 @@ static void f2fs_write_end_io(struct bio *bio)
struct bio_vec *bvec;
int i;
+ if (time_to_inject(sbi, FAULT_WRITE_IO)) {
+ f2fs_show_injection_info(sbi, FAULT_WRITE_IO);
+ bio->bi_status = BLK_STS_IOERR;
+ }
+
bio_for_each_segment_all(bvec, bio, i) {
struct page *page = bvec->bv_page;
enum count_type type = WB_DATA_TYPE(page);
@@ -164,7 +367,14 @@ static void f2fs_write_end_io(struct bio *bio)
continue;
}
- fscrypt_pullback_bio_page(&page, true);
+ fscrypt_finalize_bounce_page(&page);
+
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+ if (f2fs_is_compressed_page(page)) {
+ f2fs_compress_write_end_io(bio, page);
+ continue;
+ }
+#endif
if (unlikely(bio->bi_status)) {
mapping_set_error(page->mapping, -EIO);
@@ -188,9 +398,6 @@ static void f2fs_write_end_io(struct bio *bio)
bio_put(bio);
}
-/*
- * Return true, if pre_bio's bdev is same as its target device.
- */
struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
block_t blk_addr, struct bio *bio)
{
@@ -227,6 +434,9 @@ int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr)
return 0;
}
+/*
+ * Return true, if pre_bio's bdev is same as its target device.
+ */
static bool __same_bdev(struct f2fs_sb_info *sbi,
block_t blk_addr, struct bio *bio)
{
@@ -234,33 +444,60 @@ static bool __same_bdev(struct f2fs_sb_info *sbi,
return bio->bi_disk == b->bd_disk && bio->bi_partno == b->bd_partno;
}
-/*
- * Low-level block read/write IO operations.
- */
-static struct bio *__bio_alloc(struct f2fs_sb_info *sbi, block_t blk_addr,
- struct writeback_control *wbc,
- int npages, bool is_read,
- enum page_type type, enum temp_type temp)
+static struct bio *__bio_alloc(struct f2fs_io_info *fio, int npages)
{
+ struct f2fs_sb_info *sbi = fio->sbi;
struct bio *bio;
bio = f2fs_bio_alloc(sbi, npages, true);
- f2fs_target_device(sbi, blk_addr, bio);
- if (is_read) {
+ f2fs_target_device(sbi, fio->new_blkaddr, bio);
+ if (is_read_io(fio->op)) {
bio->bi_end_io = f2fs_read_end_io;
bio->bi_private = NULL;
} else {
bio->bi_end_io = f2fs_write_end_io;
bio->bi_private = sbi;
- bio->bi_write_hint = f2fs_io_type_to_rw_hint(sbi, type, temp);
+ bio->bi_write_hint = f2fs_io_type_to_rw_hint(sbi,
+ fio->type, fio->temp);
}
- if (wbc)
- wbc_init_bio(wbc, bio);
+ if (fio->io_wbc)
+ wbc_init_bio(fio->io_wbc, bio);
return bio;
}
+static void f2fs_set_bio_crypt_ctx(struct bio *bio, const struct inode *inode,
+ pgoff_t first_idx,
+ const struct f2fs_io_info *fio,
+ gfp_t gfp_mask)
+{
+ /*
+ * The f2fs garbage collector sets ->encrypted_page when it wants to
+ * read/write raw data without encryption.
+ */
+ if (!fio || !fio->encrypted_page)
+ fscrypt_set_bio_crypt_ctx(bio, inode, first_idx, gfp_mask);
+ else if (fscrypt_inode_should_skip_dm_default_key(inode))
+ bio_set_skip_dm_default_key(bio);
+}
+
+static bool f2fs_crypt_mergeable_bio(struct bio *bio, const struct inode *inode,
+ pgoff_t next_idx,
+ const struct f2fs_io_info *fio)
+{
+ /*
+ * The f2fs garbage collector sets ->encrypted_page when it wants to
+ * read/write raw data without encryption.
+ */
+ if (fio && fio->encrypted_page)
+ return !bio_has_crypt_ctx(bio) &&
+ (bio_should_skip_dm_default_key(bio) ==
+ fscrypt_inode_should_skip_dm_default_key(inode));
+
+ return fscrypt_mergeable_bio(bio, inode, next_idx);
+}
+
static inline void __submit_bio(struct f2fs_sb_info *sbi,
struct bio *bio, enum page_type type)
{
@@ -270,9 +507,12 @@ static inline void __submit_bio(struct f2fs_sb_info *sbi,
if (type != DATA && type != NODE)
goto submit_io;
- if (test_opt(sbi, LFS) && current->plug)
+ if (f2fs_lfs_mode(sbi) && current->plug)
blk_finish_plug(current->plug);
+ if (F2FS_IO_ALIGNED(sbi))
+ goto submit_io;
+
start = bio->bi_iter.bi_size >> F2FS_BLKSIZE_BITS;
start %= F2FS_IO_SIZE(sbi);
@@ -283,9 +523,10 @@ static inline void __submit_bio(struct f2fs_sb_info *sbi,
for (; start < F2FS_IO_SIZE(sbi); start++) {
struct page *page =
mempool_alloc(sbi->write_io_dummy,
- GFP_NOIO | __GFP_ZERO | __GFP_NOFAIL);
+ GFP_NOIO | __GFP_NOFAIL);
f2fs_bug_on(sbi, !page);
+ zero_user_segment(page, 0, PAGE_SIZE);
SetPagePrivate(page);
set_page_private(page, (unsigned long)DUMMY_WRITTEN_PAGE);
lock_page(page);
@@ -307,6 +548,66 @@ static inline void __submit_bio(struct f2fs_sb_info *sbi,
submit_bio(bio);
}
+static void __f2fs_submit_read_bio(struct f2fs_sb_info *sbi,
+ struct bio *bio, enum page_type type)
+{
+ if (trace_android_fs_dataread_start_enabled() && (type == DATA)) {
+ struct page *first_page = bio->bi_io_vec[0].bv_page;
+
+ if (first_page != NULL &&
+ __read_io_type(first_page) == F2FS_RD_DATA) {
+ char *path, pathbuf[MAX_TRACE_PATHBUF_LEN];
+
+ path = android_fstrace_get_pathname(pathbuf,
+ MAX_TRACE_PATHBUF_LEN,
+ first_page->mapping->host);
+
+ trace_android_fs_dataread_start(
+ first_page->mapping->host,
+ page_offset(first_page),
+ bio->bi_iter.bi_size,
+ current->pid,
+ path,
+ current->comm);
+ }
+ }
+ __submit_bio(sbi, bio, type);
+}
+
+void f2fs_submit_bio(struct f2fs_sb_info *sbi,
+ struct bio *bio, enum page_type type)
+{
+ __submit_bio(sbi, bio, type);
+}
+
+static void __attach_io_flag(struct f2fs_io_info *fio)
+{
+ struct f2fs_sb_info *sbi = fio->sbi;
+ unsigned int temp_mask = (1 << NR_TEMP_TYPE) - 1;
+ unsigned int io_flag, fua_flag, meta_flag;
+
+ if (fio->type == DATA)
+ io_flag = sbi->data_io_flag;
+ else if (fio->type == NODE)
+ io_flag = sbi->node_io_flag;
+ else
+ return;
+
+ fua_flag = io_flag & temp_mask;
+ meta_flag = (io_flag >> NR_TEMP_TYPE) & temp_mask;
+
+ /*
+ * data/node io flag bits per temp:
+ * REQ_META | REQ_FUA |
+ * 5 | 4 | 3 | 2 | 1 | 0 |
+ * Cold | Warm | Hot | Cold | Warm | Hot |
+ */
+ if ((1 << fio->temp) & meta_flag)
+ fio->op_flags |= REQ_META;
+ if ((1 << fio->temp) & fua_flag)
+ fio->op_flags |= REQ_FUA;
+}
+
static void __submit_merged_bio(struct f2fs_bio_info *io)
{
struct f2fs_io_info *fio = &io->fio;
@@ -314,6 +615,7 @@ static void __submit_merged_bio(struct f2fs_bio_info *io)
if (!io->bio)
return;
+ __attach_io_flag(fio);
bio_set_op_attrs(io->bio, fio->op, fio->op_flags);
if (is_read_io(fio->op))
@@ -325,31 +627,36 @@ static void __submit_merged_bio(struct f2fs_bio_info *io)
io->bio = NULL;
}
-static bool __has_merged_page(struct f2fs_bio_info *io,
- struct inode *inode, nid_t ino, pgoff_t idx)
+static bool __has_merged_page(struct bio *bio, struct inode *inode,
+ struct page *page, nid_t ino)
{
struct bio_vec *bvec;
- struct page *target;
int i;
- if (!io->bio)
+ if (!bio)
return false;
- if (!inode && !ino)
+ if (!inode && !page && !ino)
return true;
- bio_for_each_segment_all(bvec, io->bio, i) {
+ bio_for_each_segment_all(bvec, bio, i) {
+ struct page *target = bvec->bv_page;
- if (bvec->bv_page->mapping)
- target = bvec->bv_page;
- else
- target = fscrypt_control_page(bvec->bv_page);
-
- if (idx != target->index)
- continue;
+ if (fscrypt_is_bounce_page(target)) {
+ target = fscrypt_pagecache_page(target);
+ if (IS_ERR(target))
+ continue;
+ }
+ if (f2fs_is_compressed_page(target)) {
+ target = f2fs_compress_control_page(target);
+ if (IS_ERR(target))
+ continue;
+ }
if (inode && inode == target->mapping->host)
return true;
+ if (page && page == target)
+ return true;
if (ino && ino == ino_of_node(target))
return true;
}
@@ -357,28 +664,6 @@ static bool __has_merged_page(struct f2fs_bio_info *io,
return false;
}
-static bool has_merged_page(struct f2fs_sb_info *sbi, struct inode *inode,
- nid_t ino, pgoff_t idx, enum page_type type)
-{
- enum page_type btype = PAGE_TYPE_OF_BIO(type);
- enum temp_type temp;
- struct f2fs_bio_info *io;
- bool ret = false;
-
- for (temp = HOT; temp < NR_TEMP_TYPE; temp++) {
- io = sbi->write_io[btype] + temp;
-
- down_read(&io->io_rwsem);
- ret = __has_merged_page(io, inode, ino, idx);
- up_read(&io->io_rwsem);
-
- /* TODO: use HOT temp only for meta pages now. */
- if (ret || btype == META)
- break;
- }
- return ret;
-}
-
static void __f2fs_submit_merged_write(struct f2fs_sb_info *sbi,
enum page_type type, enum temp_type temp)
{
@@ -400,17 +685,23 @@ static void __f2fs_submit_merged_write(struct f2fs_sb_info *sbi,
}
static void __submit_merged_write_cond(struct f2fs_sb_info *sbi,
- struct inode *inode, nid_t ino, pgoff_t idx,
- enum page_type type, bool force)
+ struct inode *inode, struct page *page,
+ nid_t ino, enum page_type type, bool force)
{
enum temp_type temp;
-
- if (!force && !has_merged_page(sbi, inode, ino, idx, type))
- return;
+ bool ret = true;
for (temp = HOT; temp < NR_TEMP_TYPE; temp++) {
+ if (!force) {
+ enum page_type btype = PAGE_TYPE_OF_BIO(type);
+ struct f2fs_bio_info *io = sbi->write_io[btype] + temp;
- __f2fs_submit_merged_write(sbi, type, temp);
+ down_read(&io->io_rwsem);
+ ret = __has_merged_page(io->bio, inode, page, ino);
+ up_read(&io->io_rwsem);
+ }
+ if (ret)
+ __f2fs_submit_merged_write(sbi, type, temp);
/* TODO: use HOT temp only for meta pages now. */
if (type >= META)
@@ -420,14 +711,14 @@ static void __submit_merged_write_cond(struct f2fs_sb_info *sbi,
void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type)
{
- __submit_merged_write_cond(sbi, NULL, 0, 0, type, true);
+ __submit_merged_write_cond(sbi, NULL, NULL, 0, type, true);
}
void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi,
- struct inode *inode, nid_t ino, pgoff_t idx,
- enum page_type type)
+ struct inode *inode, struct page *page,
+ nid_t ino, enum page_type type)
{
- __submit_merged_write_cond(sbi, inode, ino, idx, type, false);
+ __submit_merged_write_cond(sbi, inode, page, ino, type, false);
}
void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi)
@@ -448,15 +739,18 @@ int f2fs_submit_page_bio(struct f2fs_io_info *fio)
fio->encrypted_page : fio->page;
if (!f2fs_is_valid_blkaddr(fio->sbi, fio->new_blkaddr,
- __is_meta_io(fio) ? META_GENERIC : DATA_GENERIC))
+ fio->is_por ? META_POR : (__is_meta_io(fio) ?
+ META_GENERIC : DATA_GENERIC_ENHANCE)))
return -EFSCORRUPTED;
trace_f2fs_submit_page_bio(page, fio);
f2fs_trace_ios(fio, 0);
/* Allocate a new bio */
- bio = __bio_alloc(fio->sbi, fio->new_blkaddr, fio->io_wbc,
- 1, is_read_io(fio->op), fio->type, fio->temp);
+ bio = __bio_alloc(fio, 1);
+
+ f2fs_set_bio_crypt_ctx(bio, fio->page->mapping->host,
+ fio->page->index, fio, GFP_NOIO);
if (bio_add_page(bio, page, PAGE_SIZE, 0) < PAGE_SIZE) {
bio_put(bio);
@@ -466,12 +760,219 @@ int f2fs_submit_page_bio(struct f2fs_io_info *fio)
if (fio->io_wbc && !is_read_io(fio->op))
wbc_account_io(fio->io_wbc, page, PAGE_SIZE);
+ __attach_io_flag(fio);
bio_set_op_attrs(bio, fio->op, fio->op_flags);
- if (!is_read_io(fio->op))
- inc_page_count(fio->sbi, WB_DATA_TYPE(fio->page));
+ inc_page_count(fio->sbi, is_read_io(fio->op) ?
+ __read_io_type(page): WB_DATA_TYPE(fio->page));
- __submit_bio(fio->sbi, bio, fio->type);
+ if (is_read_io(fio->op))
+ __f2fs_submit_read_bio(fio->sbi, bio, fio->type);
+ else
+ __submit_bio(fio->sbi, bio, fio->type);
+ return 0;
+}
+
+static bool page_is_mergeable(struct f2fs_sb_info *sbi, struct bio *bio,
+ block_t last_blkaddr, block_t cur_blkaddr)
+{
+ if (last_blkaddr + 1 != cur_blkaddr)
+ return false;
+ return __same_bdev(sbi, cur_blkaddr, bio);
+}
+
+static bool io_type_is_mergeable(struct f2fs_bio_info *io,
+ struct f2fs_io_info *fio)
+{
+ if (io->fio.op != fio->op)
+ return false;
+ return io->fio.op_flags == fio->op_flags;
+}
+
+static bool io_is_mergeable(struct f2fs_sb_info *sbi, struct bio *bio,
+ struct f2fs_bio_info *io,
+ struct f2fs_io_info *fio,
+ block_t last_blkaddr,
+ block_t cur_blkaddr)
+{
+ if (F2FS_IO_ALIGNED(sbi) && (fio->type == DATA || fio->type == NODE)) {
+ unsigned int filled_blocks =
+ F2FS_BYTES_TO_BLK(bio->bi_iter.bi_size);
+ unsigned int io_size = F2FS_IO_SIZE(sbi);
+ unsigned int left_vecs = bio->bi_max_vecs - bio->bi_vcnt;
+
+ /* IOs in bio is aligned and left space of vectors is not enough */
+ if (!(filled_blocks % io_size) && left_vecs < io_size)
+ return false;
+ }
+ if (!page_is_mergeable(sbi, bio, last_blkaddr, cur_blkaddr))
+ return false;
+ return io_type_is_mergeable(io, fio);
+}
+
+static void add_bio_entry(struct f2fs_sb_info *sbi, struct bio *bio,
+ struct page *page, enum temp_type temp)
+{
+ struct f2fs_bio_info *io = sbi->write_io[DATA] + temp;
+ struct bio_entry *be;
+
+ be = f2fs_kmem_cache_alloc(bio_entry_slab, GFP_NOFS);
+ be->bio = bio;
+ bio_get(bio);
+
+ if (bio_add_page(bio, page, PAGE_SIZE, 0) != PAGE_SIZE)
+ f2fs_bug_on(sbi, 1);
+
+ down_write(&io->bio_list_lock);
+ list_add_tail(&be->list, &io->bio_list);
+ up_write(&io->bio_list_lock);
+}
+
+static void del_bio_entry(struct bio_entry *be)
+{
+ list_del(&be->list);
+ kmem_cache_free(bio_entry_slab, be);
+}
+
+static int add_ipu_page(struct f2fs_io_info *fio, struct bio **bio,
+ struct page *page)
+{
+ struct f2fs_sb_info *sbi = fio->sbi;
+ enum temp_type temp;
+ bool found = false;
+ int ret = -EAGAIN;
+
+ for (temp = HOT; temp < NR_TEMP_TYPE && !found; temp++) {
+ struct f2fs_bio_info *io = sbi->write_io[DATA] + temp;
+ struct list_head *head = &io->bio_list;
+ struct bio_entry *be;
+
+ down_write(&io->bio_list_lock);
+ list_for_each_entry(be, head, list) {
+ if (be->bio != *bio)
+ continue;
+
+ found = true;
+
+ if (page_is_mergeable(sbi, *bio, *fio->last_block,
+ fio->new_blkaddr) &&
+ f2fs_crypt_mergeable_bio(*bio,
+ fio->page->mapping->host,
+ fio->page->index, fio) &&
+ bio_add_page(*bio, page, PAGE_SIZE, 0) ==
+ PAGE_SIZE) {
+ ret = 0;
+ break;
+ }
+
+ /* page can't be merged into bio; submit the bio */
+ del_bio_entry(be);
+ __submit_bio(sbi, *bio, DATA);
+ break;
+ }
+ up_write(&io->bio_list_lock);
+ }
+
+ if (ret) {
+ bio_put(*bio);
+ *bio = NULL;
+ }
+
+ return ret;
+}
+
+void f2fs_submit_merged_ipu_write(struct f2fs_sb_info *sbi,
+ struct bio **bio, struct page *page)
+{
+ enum temp_type temp;
+ bool found = false;
+ struct bio *target = bio ? *bio : NULL;
+
+ for (temp = HOT; temp < NR_TEMP_TYPE && !found; temp++) {
+ struct f2fs_bio_info *io = sbi->write_io[DATA] + temp;
+ struct list_head *head = &io->bio_list;
+ struct bio_entry *be;
+
+ if (list_empty(head))
+ continue;
+
+ down_read(&io->bio_list_lock);
+ list_for_each_entry(be, head, list) {
+ if (target)
+ found = (target == be->bio);
+ else
+ found = __has_merged_page(be->bio, NULL,
+ page, 0);
+ if (found)
+ break;
+ }
+ up_read(&io->bio_list_lock);
+
+ if (!found)
+ continue;
+
+ found = false;
+
+ down_write(&io->bio_list_lock);
+ list_for_each_entry(be, head, list) {
+ if (target)
+ found = (target == be->bio);
+ else
+ found = __has_merged_page(be->bio, NULL,
+ page, 0);
+ if (found) {
+ target = be->bio;
+ del_bio_entry(be);
+ break;
+ }
+ }
+ up_write(&io->bio_list_lock);
+ }
+
+ if (found)
+ __submit_bio(sbi, target, DATA);
+ if (bio && *bio) {
+ bio_put(*bio);
+ *bio = NULL;
+ }
+}
+
+int f2fs_merge_page_bio(struct f2fs_io_info *fio)
+{
+ struct bio *bio = *fio->bio;
+ struct page *page = fio->encrypted_page ?
+ fio->encrypted_page : fio->page;
+
+ if (!f2fs_is_valid_blkaddr(fio->sbi, fio->new_blkaddr,
+ __is_meta_io(fio) ? META_GENERIC : DATA_GENERIC))
+ return -EFSCORRUPTED;
+
+ trace_f2fs_submit_page_bio(page, fio);
+ f2fs_trace_ios(fio, 0);
+
+alloc_new:
+ if (!bio) {
+ bio = __bio_alloc(fio, BIO_MAX_PAGES);
+ f2fs_set_bio_crypt_ctx(bio, fio->page->mapping->host,
+ fio->page->index, fio,
+ GFP_NOIO);
+ __attach_io_flag(fio);
+ bio_set_op_attrs(bio, fio->op, fio->op_flags);
+
+ add_bio_entry(fio->sbi, bio, page, fio->temp);
+ } else {
+ if (add_ipu_page(fio, &bio, page))
+ goto alloc_new;
+ }
+
+ if (fio->io_wbc)
+ wbc_account_io(fio->io_wbc, page, PAGE_SIZE);
+
+ inc_page_count(fio->sbi, WB_DATA_TYPE(page));
+
+ *fio->last_block = fio->new_blkaddr;
+ *fio->bio = bio;
+
return 0;
}
@@ -498,32 +999,39 @@ void f2fs_submit_page_write(struct f2fs_io_info *fio)
spin_unlock(&io->io_lock);
}
- if (__is_valid_data_blkaddr(fio->old_blkaddr))
- verify_block_addr(fio, fio->old_blkaddr);
- verify_block_addr(fio, fio->new_blkaddr);
+ verify_fio_blkaddr(fio);
- bio_page = fio->encrypted_page ? fio->encrypted_page : fio->page;
+ if (fio->encrypted_page)
+ bio_page = fio->encrypted_page;
+ else if (fio->compressed_page)
+ bio_page = fio->compressed_page;
+ else
+ bio_page = fio->page;
/* set submitted = true as a return value */
fio->submitted = true;
inc_page_count(sbi, WB_DATA_TYPE(bio_page));
- if (io->bio && (io->last_block_in_bio != fio->new_blkaddr - 1 ||
- (io->fio.op != fio->op || io->fio.op_flags != fio->op_flags) ||
- !__same_bdev(sbi, fio->new_blkaddr, io->bio)))
+ if (io->bio &&
+ (!io_is_mergeable(sbi, io->bio, io, fio, io->last_block_in_bio,
+ fio->new_blkaddr) ||
+ !f2fs_crypt_mergeable_bio(io->bio, fio->page->mapping->host,
+ fio->page->index, fio)))
__submit_merged_bio(io);
alloc_new:
if (io->bio == NULL) {
- if ((fio->type == DATA || fio->type == NODE) &&
+ if (F2FS_IO_ALIGNED(sbi) &&
+ (fio->type == DATA || fio->type == NODE) &&
fio->new_blkaddr & F2FS_IO_SIZE_MASK(sbi)) {
dec_page_count(sbi, WB_DATA_TYPE(bio_page));
fio->retry = true;
goto skip;
}
- io->bio = __bio_alloc(sbi, fio->new_blkaddr, fio->io_wbc,
- BIO_MAX_PAGES, false,
- fio->type, fio->temp);
+ io->bio = __bio_alloc(fio, BIO_MAX_PAGES);
+ f2fs_set_bio_crypt_ctx(io->bio, fio->page->mapping->host,
+ fio->page->index, fio,
+ GFP_NOIO);
io->fio = *fio;
}
@@ -543,38 +1051,50 @@ void f2fs_submit_page_write(struct f2fs_io_info *fio)
if (fio->in_list)
goto next;
out:
- if (is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN))
+ if (is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN) ||
+ !f2fs_is_checkpoint_ready(sbi))
__submit_merged_bio(io);
up_write(&io->io_rwsem);
}
+static inline bool f2fs_need_verity(const struct inode *inode, pgoff_t idx)
+{
+ return fsverity_active(inode) &&
+ idx < DIV_ROUND_UP(inode->i_size, PAGE_SIZE);
+}
+
static struct bio *f2fs_grab_read_bio(struct inode *inode, block_t blkaddr,
- unsigned nr_pages, unsigned op_flag)
+ unsigned nr_pages, unsigned op_flag,
+ pgoff_t first_idx, bool for_write)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
struct bio *bio;
struct bio_post_read_ctx *ctx;
unsigned int post_read_steps = 0;
- if (!f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC))
- return ERR_PTR(-EFAULT);
-
- bio = f2fs_bio_alloc(sbi, min_t(int, nr_pages, BIO_MAX_PAGES), false);
+ bio = f2fs_bio_alloc(sbi, min_t(int, nr_pages, BIO_MAX_PAGES),
+ for_write);
if (!bio)
return ERR_PTR(-ENOMEM);
+
+ f2fs_set_bio_crypt_ctx(bio, inode, first_idx, NULL, GFP_NOFS);
+
f2fs_target_device(sbi, blkaddr, bio);
bio->bi_end_io = f2fs_read_end_io;
bio_set_op_attrs(bio, REQ_OP_READ, op_flag);
- if (f2fs_encrypted_file(inode))
+ if (fscrypt_inode_uses_fs_layer_crypto(inode))
post_read_steps |= 1 << STEP_DECRYPT;
+ if (f2fs_compressed_file(inode))
+ post_read_steps |= 1 << STEP_DECOMPRESS_NOWQ;
+ if (f2fs_need_verity(inode, first_idx))
+ post_read_steps |= 1 << STEP_VERITY;
+
if (post_read_steps) {
+ /* Due to the mempool, this never fails. */
ctx = mempool_alloc(bio_post_read_ctx_pool, GFP_NOFS);
- if (!ctx) {
- bio_put(bio);
- return ERR_PTR(-ENOMEM);
- }
ctx->bio = bio;
+ ctx->sbi = sbi;
ctx->enabled_steps = post_read_steps;
bio->bi_private = ctx;
}
@@ -582,12 +1102,21 @@ static struct bio *f2fs_grab_read_bio(struct inode *inode, block_t blkaddr,
return bio;
}
+static void f2fs_release_read_bio(struct bio *bio)
+{
+ if (bio->bi_private)
+ mempool_free(bio->bi_private, bio_post_read_ctx_pool);
+ bio_put(bio);
+}
+
/* This can handle encryption stuffs */
static int f2fs_submit_page_read(struct inode *inode, struct page *page,
- block_t blkaddr)
+ block_t blkaddr, bool for_write)
{
- struct bio *bio = f2fs_grab_read_bio(inode, blkaddr, 1, 0);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+ struct bio *bio;
+ bio = f2fs_grab_read_bio(inode, blkaddr, 1, 0, page->index, for_write);
if (IS_ERR(bio))
return PTR_ERR(bio);
@@ -599,7 +1128,9 @@ static int f2fs_submit_page_read(struct inode *inode, struct page *page,
return -EFAULT;
}
ClearPageError(page);
- __submit_bio(F2FS_I_SB(inode), bio, DATA);
+ inc_page_count(sbi, F2FS_RD_DATA);
+ f2fs_update_iostat(sbi, FS_DATA_READ_IO, F2FS_BLKSIZE);
+ __f2fs_submit_read_bio(sbi, bio, DATA);
return 0;
}
@@ -625,7 +1156,7 @@ static void __set_data_blkaddr(struct dnode_of_data *dn)
*/
void f2fs_set_data_blkaddr(struct dnode_of_data *dn)
{
- f2fs_wait_on_page_writeback(dn->node_page, NODE, true);
+ f2fs_wait_on_page_writeback(dn->node_page, NODE, true, true);
__set_data_blkaddr(dn);
if (set_page_dirty(dn->node_page))
dn->node_changed = true;
@@ -655,11 +1186,10 @@ int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count)
trace_f2fs_reserve_new_blocks(dn->inode, dn->nid,
dn->ofs_in_node, count);
- f2fs_wait_on_page_writeback(dn->node_page, NODE, true);
+ f2fs_wait_on_page_writeback(dn->node_page, NODE, true, true);
for (; count > 0; dn->ofs_in_node++) {
- block_t blkaddr = datablock_addr(dn->inode,
- dn->node_page, dn->ofs_in_node);
+ block_t blkaddr = f2fs_data_blkaddr(dn);
if (blkaddr == NULL_ADDR) {
dn->data_blkaddr = NEW_ADDR;
__set_data_blkaddr(dn);
@@ -727,6 +1257,11 @@ struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
if (f2fs_lookup_extent_cache(inode, index, &ei)) {
dn.data_blkaddr = ei.blk + index - ei.fofs;
+ if (!f2fs_is_valid_blkaddr(F2FS_I_SB(inode), dn.data_blkaddr,
+ DATA_GENERIC_ENHANCE_READ)) {
+ err = -EFSCORRUPTED;
+ goto put_err;
+ }
goto got_it;
}
@@ -740,6 +1275,13 @@ struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
err = -ENOENT;
goto put_err;
}
+ if (dn.data_blkaddr != NEW_ADDR &&
+ !f2fs_is_valid_blkaddr(F2FS_I_SB(inode),
+ dn.data_blkaddr,
+ DATA_GENERIC_ENHANCE)) {
+ err = -EFSCORRUPTED;
+ goto put_err;
+ }
got_it:
if (PageUptodate(page)) {
unlock_page(page);
@@ -761,7 +1303,7 @@ struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
return page;
}
- err = f2fs_submit_page_read(inode, page, dn.data_blkaddr);
+ err = f2fs_submit_page_read(inode, page, dn.data_blkaddr, for_write);
if (err)
goto put_err;
return page;
@@ -899,9 +1441,8 @@ static int __allocate_data_block(struct dnode_of_data *dn, int seg_type)
if (err)
return err;
- dn->data_blkaddr = datablock_addr(dn->inode,
- dn->node_page, dn->ofs_in_node);
- if (dn->data_blkaddr == NEW_ADDR)
+ dn->data_blkaddr = f2fs_data_blkaddr(dn);
+ if (dn->data_blkaddr != NULL_ADDR)
goto alloc;
if (unlikely((err = inc_valid_block_count(sbi, dn->inode, &count))))
@@ -915,7 +1456,7 @@ static int __allocate_data_block(struct dnode_of_data *dn, int seg_type)
if (GET_SEGNO(sbi, old_blkaddr) != NULL_SEGNO)
invalidate_mapping_pages(META_MAPPING(sbi),
old_blkaddr, old_blkaddr);
- f2fs_set_data_blkaddr(dn);
+ f2fs_update_data_blkaddr(dn, dn->data_blkaddr);
/*
* i_size will be updated by direct_IO. Otherwise, we'll get stale
@@ -932,16 +1473,6 @@ int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from)
int err = 0;
bool direct_io = iocb->ki_flags & IOCB_DIRECT;
- /* convert inline data for Direct I/O*/
- if (direct_io) {
- err = f2fs_convert_inline_inode(inode);
- if (err)
- return err;
- }
-
- if (is_inode_flag_set(inode, FI_NO_PREALLOC))
- return 0;
-
map.m_lblk = F2FS_BLK_ALIGN(iocb->ki_pos);
map.m_len = F2FS_BYTES_TO_BLK(iocb->ki_pos + iov_iter_count(from));
if (map.m_len > map.m_lblk)
@@ -952,10 +1483,11 @@ int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from)
map.m_next_pgofs = NULL;
map.m_next_extent = NULL;
map.m_seg_type = NO_CHECK_TYPE;
+ map.m_may_create = true;
if (direct_io) {
map.m_seg_type = f2fs_rw_hint_to_seg_type(iocb->ki_hint);
- flag = f2fs_force_buffered_io(inode, WRITE) ?
+ flag = f2fs_force_buffered_io(inode, iocb, from) ?
F2FS_GET_BLOCK_PRE_AIO :
F2FS_GET_BLOCK_PRE_DIO;
goto map_blocks;
@@ -980,7 +1512,7 @@ int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from)
return err;
}
-static inline void __do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock)
+void __do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock)
{
if (flag == F2FS_GET_BLOCK_PRE_AIO) {
if (lock)
@@ -996,13 +1528,9 @@ static inline void __do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock)
}
/*
- * f2fs_map_blocks() now supported readahead/bmap/rw direct_IO with
- * f2fs_map_blocks structure.
- * If original data blocks are allocated, then give them to blockdev.
- * Otherwise,
- * a. preallocate requested block addresses
- * b. do not use extent cache for better performance
- * c. give the block addresses to blockdev
+ * f2fs_map_blocks() tries to find or build mapping relationship which
+ * maps continuous logical blocks to physical blocks, and return such
+ * info via f2fs_map_blocks structure.
*/
int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
int create, int flag)
@@ -1010,7 +1538,7 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
unsigned int maxblocks = map->m_len;
struct dnode_of_data dn;
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
- int mode = create ? ALLOC_NODE : LOOKUP_NODE;
+ int mode = map->m_may_create ? ALLOC_NODE : LOOKUP_NODE;
pgoff_t pgofs, end_offset, end;
int err = 0, ofs = 1;
unsigned int ofs_in_node, last_ofs_in_node;
@@ -1030,16 +1558,25 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
end = pgofs + maxblocks;
if (!create && f2fs_lookup_extent_cache(inode, pgofs, &ei)) {
+ if (f2fs_lfs_mode(sbi) && flag == F2FS_GET_BLOCK_DIO &&
+ map->m_may_create)
+ goto next_dnode;
+
map->m_pblk = ei.blk + pgofs - ei.fofs;
map->m_len = min((pgoff_t)maxblocks, ei.fofs + ei.len - pgofs);
map->m_flags = F2FS_MAP_MAPPED;
if (map->m_next_extent)
*map->m_next_extent = pgofs + map->m_len;
+
+ /* for hardware encryption, but to avoid potential issue in future */
+ if (flag == F2FS_GET_BLOCK_DIO)
+ f2fs_wait_on_block_writeback_range(inode,
+ map->m_pblk, map->m_len);
goto out;
}
next_dnode:
- if (create)
+ if (map->m_may_create)
__do_map_lock(sbi, flag, true);
/* When reading holes, we need its node page */
@@ -1066,15 +1603,25 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
next_block:
- blkaddr = datablock_addr(dn.inode, dn.node_page, dn.ofs_in_node);
+ blkaddr = f2fs_data_blkaddr(&dn);
if (__is_valid_data_blkaddr(blkaddr) &&
- !f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC)) {
+ !f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC_ENHANCE)) {
err = -EFSCORRUPTED;
goto sync_out;
}
- if (!is_valid_data_blkaddr(sbi, blkaddr)) {
+ if (__is_valid_data_blkaddr(blkaddr)) {
+ /* use out-place-update for driect IO under LFS mode */
+ if (f2fs_lfs_mode(sbi) && flag == F2FS_GET_BLOCK_DIO &&
+ map->m_may_create) {
+ err = __allocate_data_block(&dn, map->m_seg_type);
+ if (err)
+ goto sync_out;
+ blkaddr = dn.data_blkaddr;
+ set_inode_flag(inode, FI_APPEND_WRITE);
+ }
+ } else {
if (create) {
if (unlikely(f2fs_cp_error(sbi))) {
err = -EIO;
@@ -1178,13 +1725,19 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
f2fs_put_dnode(&dn);
- if (create) {
+ if (map->m_may_create) {
__do_map_lock(sbi, flag, false);
f2fs_balance_fs(sbi, dn.node_changed);
}
goto next_dnode;
sync_out:
+
+ /* for hardware encryption, but to avoid potential issue in future */
+ if (flag == F2FS_GET_BLOCK_DIO && map->m_flags & F2FS_MAP_MAPPED)
+ f2fs_wait_on_block_writeback_range(inode,
+ map->m_pblk, map->m_len);
+
if (flag == F2FS_GET_BLOCK_PRECACHE) {
if (map->m_flags & F2FS_MAP_MAPPED) {
unsigned int ofs = start_pgofs - map->m_lblk;
@@ -1198,7 +1751,7 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
}
f2fs_put_dnode(&dn);
unlock_out:
- if (create) {
+ if (map->m_may_create) {
__do_map_lock(sbi, flag, false);
f2fs_balance_fs(sbi, dn.node_changed);
}
@@ -1220,6 +1773,7 @@ bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len)
map.m_next_pgofs = NULL;
map.m_next_extent = NULL;
map.m_seg_type = NO_CHECK_TYPE;
+ map.m_may_create = false;
last_lblk = F2FS_BLK_ALIGN(pos + len);
while (map.m_lblk < last_lblk) {
@@ -1234,7 +1788,7 @@ bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len)
static int __get_data_block(struct inode *inode, sector_t iblock,
struct buffer_head *bh, int create, int flag,
- pgoff_t *next_pgofs, int seg_type)
+ pgoff_t *next_pgofs, int seg_type, bool may_write)
{
struct f2fs_map_blocks map;
int err;
@@ -1244,6 +1798,7 @@ static int __get_data_block(struct inode *inode, sector_t iblock,
map.m_next_pgofs = next_pgofs;
map.m_next_extent = NULL;
map.m_seg_type = seg_type;
+ map.m_may_create = may_write;
err = f2fs_map_blocks(inode, &map, create, flag);
if (!err) {
@@ -1260,16 +1815,25 @@ static int get_data_block(struct inode *inode, sector_t iblock,
{
return __get_data_block(inode, iblock, bh_result, create,
flag, next_pgofs,
- NO_CHECK_TYPE);
+ NO_CHECK_TYPE, create);
+}
+
+static int get_data_block_dio_write(struct inode *inode, sector_t iblock,
+ struct buffer_head *bh_result, int create)
+{
+ return __get_data_block(inode, iblock, bh_result, create,
+ F2FS_GET_BLOCK_DIO, NULL,
+ f2fs_rw_hint_to_seg_type(inode->i_write_hint),
+ IS_SWAPFILE(inode) ? false : true);
}
static int get_data_block_dio(struct inode *inode, sector_t iblock,
struct buffer_head *bh_result, int create)
{
return __get_data_block(inode, iblock, bh_result, create,
- F2FS_GET_BLOCK_DIO, NULL,
- f2fs_rw_hint_to_seg_type(
- inode->i_write_hint));
+ F2FS_GET_BLOCK_DIO, NULL,
+ f2fs_rw_hint_to_seg_type(inode->i_write_hint),
+ false);
}
static int get_data_block_bmap(struct inode *inode, sector_t iblock,
@@ -1281,7 +1845,7 @@ static int get_data_block_bmap(struct inode *inode, sector_t iblock,
return __get_data_block(inode, iblock, bh_result, create,
F2FS_GET_BLOCK_BMAP, NULL,
- NO_CHECK_TYPE);
+ NO_CHECK_TYPE, create);
}
static inline sector_t logical_to_blk(struct inode *inode, loff_t offset)
@@ -1364,6 +1928,25 @@ static int f2fs_xattr_fiemap(struct inode *inode,
return (err < 0 ? err : 0);
}
+static loff_t max_inode_blocks(struct inode *inode)
+{
+ loff_t result = ADDRS_PER_INODE(inode);
+ loff_t leaf_count = ADDRS_PER_BLOCK(inode);
+
+ /* two direct node blocks */
+ result += (leaf_count * 2);
+
+ /* two indirect node blocks */
+ leaf_count *= NIDS_PER_BLOCK;
+ result += (leaf_count * 2);
+
+ /* one double indirect node block */
+ leaf_count *= NIDS_PER_BLOCK;
+ result += leaf_count;
+
+ return result;
+}
+
int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
u64 start, u64 len)
{
@@ -1373,6 +1956,8 @@ int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
u64 logical = 0, phys = 0, size = 0;
u32 flags = 0;
int ret = 0;
+ bool compr_cluster = false;
+ unsigned int cluster_size = F2FS_I(inode)->i_cluster_size;
if (fieinfo->fi_flags & FIEMAP_FLAG_CACHE) {
ret = f2fs_precache_extents(inode);
@@ -1391,7 +1976,7 @@ int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
goto out;
}
- if (f2fs_has_inline_data(inode)) {
+ if (f2fs_has_inline_data(inode) || f2fs_has_inline_dentry(inode)) {
ret = f2fs_inline_data_fiemap(inode, fieinfo, start, len);
if (ret != -EAGAIN)
goto out;
@@ -1407,6 +1992,9 @@ int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
memset(&map_bh, 0, sizeof(struct buffer_head));
map_bh.b_size = len;
+ if (compr_cluster)
+ map_bh.b_size = blk_to_logical(inode, cluster_size - 1);
+
ret = get_data_block(inode, start_blk, &map_bh, 0,
F2FS_GET_BLOCK_FIEMAP, &next_pgofs);
if (ret)
@@ -1417,23 +2005,50 @@ int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
start_blk = next_pgofs;
if (blk_to_logical(inode, start_blk) < blk_to_logical(inode,
- F2FS_I_SB(inode)->max_file_blocks))
+ max_inode_blocks(inode)))
goto prep_next;
flags |= FIEMAP_EXTENT_LAST;
}
if (size) {
- if (f2fs_encrypted_inode(inode))
+ if (IS_ENCRYPTED(inode))
flags |= FIEMAP_EXTENT_DATA_ENCRYPTED;
ret = fiemap_fill_next_extent(fieinfo, logical,
phys, size, flags);
+ if (ret)
+ goto out;
+ size = 0;
}
- if (start_blk > last_blk || ret)
+ if (start_blk > last_blk)
goto out;
+ if (compr_cluster) {
+ compr_cluster = false;
+
+
+ logical = blk_to_logical(inode, start_blk - 1);
+ phys = blk_to_logical(inode, map_bh.b_blocknr);
+ size = blk_to_logical(inode, cluster_size);
+
+ flags |= FIEMAP_EXTENT_ENCODED;
+
+ start_blk += cluster_size - 1;
+
+ if (start_blk > last_blk)
+ goto out;
+
+ goto prep_next;
+ }
+
+ if (map_bh.b_blocknr == COMPRESS_ADDR) {
+ compr_cluster = true;
+ start_blk++;
+ goto prep_next;
+ }
+
logical = blk_to_logical(inode, start_blk);
phys = blk_to_logical(inode, map_bh.b_blocknr);
size = map_bh.b_size;
@@ -1457,6 +2072,284 @@ int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
return ret;
}
+static inline loff_t f2fs_readpage_limit(struct inode *inode)
+{
+ if (IS_ENABLED(CONFIG_FS_VERITY) &&
+ (IS_VERITY(inode) || f2fs_verity_in_progress(inode)))
+ return inode->i_sb->s_maxbytes;
+
+ return i_size_read(inode);
+}
+
+static int f2fs_read_single_page(struct inode *inode, struct page *page,
+ unsigned nr_pages,
+ struct f2fs_map_blocks *map,
+ struct bio **bio_ret,
+ sector_t *last_block_in_bio,
+ bool is_readahead)
+{
+ struct bio *bio = *bio_ret;
+ const unsigned blkbits = inode->i_blkbits;
+ const unsigned blocksize = 1 << blkbits;
+ sector_t block_in_file;
+ sector_t last_block;
+ sector_t last_block_in_file;
+ sector_t block_nr;
+ int ret = 0;
+
+ block_in_file = (sector_t)page_index(page);
+ last_block = block_in_file + nr_pages;
+ last_block_in_file = (f2fs_readpage_limit(inode) + blocksize - 1) >>
+ blkbits;
+ if (last_block > last_block_in_file)
+ last_block = last_block_in_file;
+
+ /* just zeroing out page which is beyond EOF */
+ if (block_in_file >= last_block)
+ goto zero_out;
+ /*
+ * Map blocks using the previous result first.
+ */
+ if ((map->m_flags & F2FS_MAP_MAPPED) &&
+ block_in_file > map->m_lblk &&
+ block_in_file < (map->m_lblk + map->m_len))
+ goto got_it;
+
+ /*
+ * Then do more f2fs_map_blocks() calls until we are
+ * done with this page.
+ */
+ map->m_lblk = block_in_file;
+ map->m_len = last_block - block_in_file;
+
+ ret = f2fs_map_blocks(inode, map, 0, F2FS_GET_BLOCK_DEFAULT);
+ if (ret)
+ goto out;
+got_it:
+ if ((map->m_flags & F2FS_MAP_MAPPED)) {
+ block_nr = map->m_pblk + block_in_file - map->m_lblk;
+ SetPageMappedToDisk(page);
+
+ if (!PageUptodate(page) && (!PageSwapCache(page) &&
+ !cleancache_get_page(page))) {
+ SetPageUptodate(page);
+ goto confused;
+ }
+
+ if (!f2fs_is_valid_blkaddr(F2FS_I_SB(inode), block_nr,
+ DATA_GENERIC_ENHANCE_READ)) {
+ ret = -EFSCORRUPTED;
+ goto out;
+ }
+ } else {
+zero_out:
+ zero_user_segment(page, 0, PAGE_SIZE);
+ if (f2fs_need_verity(inode, page->index) &&
+ !fsverity_verify_page(page)) {
+ ret = -EIO;
+ goto out;
+ }
+ if (!PageUptodate(page))
+ SetPageUptodate(page);
+ unlock_page(page);
+ goto out;
+ }
+
+ /*
+ * This page will go to BIO. Do we need to send this
+ * BIO off first?
+ */
+ if (bio && (!page_is_mergeable(F2FS_I_SB(inode), bio,
+ *last_block_in_bio, block_nr) ||
+ !f2fs_crypt_mergeable_bio(bio, inode, page->index, NULL))) {
+submit_and_realloc:
+ __f2fs_submit_read_bio(F2FS_I_SB(inode), bio, DATA);
+ bio = NULL;
+ }
+ if (bio == NULL) {
+ bio = f2fs_grab_read_bio(inode, block_nr, nr_pages,
+ is_readahead ? REQ_RAHEAD : 0, page->index,
+ false);
+ if (IS_ERR(bio)) {
+ ret = PTR_ERR(bio);
+ bio = NULL;
+ goto out;
+ }
+ }
+
+ /*
+ * If the page is under writeback, we need to wait for
+ * its completion to see the correct decrypted data.
+ */
+ f2fs_wait_on_block_writeback(inode, block_nr);
+
+ if (bio_add_page(bio, page, blocksize, 0) < blocksize)
+ goto submit_and_realloc;
+
+ inc_page_count(F2FS_I_SB(inode), F2FS_RD_DATA);
+ f2fs_update_iostat(F2FS_I_SB(inode), FS_DATA_READ_IO, F2FS_BLKSIZE);
+ ClearPageError(page);
+ *last_block_in_bio = block_nr;
+ goto out;
+confused:
+ if (bio) {
+ __f2fs_submit_read_bio(F2FS_I_SB(inode), bio, DATA);
+ bio = NULL;
+ }
+ unlock_page(page);
+out:
+ *bio_ret = bio;
+ return ret;
+}
+
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
+ unsigned nr_pages, sector_t *last_block_in_bio,
+ bool is_readahead, bool for_write)
+{
+ struct dnode_of_data dn;
+ struct inode *inode = cc->inode;
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+ struct bio *bio = *bio_ret;
+ unsigned int start_idx = cc->cluster_idx << cc->log_cluster_size;
+ sector_t last_block_in_file;
+ const unsigned blkbits = inode->i_blkbits;
+ const unsigned blocksize = 1 << blkbits;
+ struct decompress_io_ctx *dic = NULL;
+ int i;
+ int ret = 0;
+
+ f2fs_bug_on(sbi, f2fs_cluster_is_empty(cc));
+
+ last_block_in_file = (f2fs_readpage_limit(inode) +
+ blocksize - 1) >> blkbits;
+
+ /* get rid of pages beyond EOF */
+ for (i = 0; i < cc->cluster_size; i++) {
+ struct page *page = cc->rpages[i];
+
+ if (!page)
+ continue;
+ if ((sector_t)page->index >= last_block_in_file) {
+ zero_user_segment(page, 0, PAGE_SIZE);
+ if (!PageUptodate(page))
+ SetPageUptodate(page);
+ } else if (!PageUptodate(page)) {
+ continue;
+ }
+ unlock_page(page);
+ cc->rpages[i] = NULL;
+ cc->nr_rpages--;
+ }
+
+ /* we are done since all pages are beyond EOF */
+ if (f2fs_cluster_is_empty(cc))
+ goto out;
+
+ set_new_dnode(&dn, inode, NULL, NULL, 0);
+ ret = f2fs_get_dnode_of_data(&dn, start_idx, LOOKUP_NODE);
+ if (ret)
+ goto out;
+
+ /* cluster was overwritten as normal cluster */
+ if (dn.data_blkaddr != COMPRESS_ADDR)
+ goto out;
+
+ for (i = 1; i < cc->cluster_size; i++) {
+ block_t blkaddr;
+
+ blkaddr = data_blkaddr(dn.inode, dn.node_page,
+ dn.ofs_in_node + i);
+
+ if (!__is_valid_data_blkaddr(blkaddr))
+ break;
+
+ if (!f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC)) {
+ ret = -EFAULT;
+ goto out_put_dnode;
+ }
+ cc->nr_cpages++;
+ }
+
+ /* nothing to decompress */
+ if (cc->nr_cpages == 0) {
+ ret = 0;
+ goto out_put_dnode;
+ }
+
+ dic = f2fs_alloc_dic(cc);
+ if (IS_ERR(dic)) {
+ ret = PTR_ERR(dic);
+ goto out_put_dnode;
+ }
+
+ for (i = 0; i < dic->nr_cpages; i++) {
+ struct page *page = dic->cpages[i];
+ block_t blkaddr;
+ struct bio_post_read_ctx *ctx;
+
+ blkaddr = data_blkaddr(dn.inode, dn.node_page,
+ dn.ofs_in_node + i + 1);
+
+ if (bio && (!page_is_mergeable(sbi, bio,
+ *last_block_in_bio, blkaddr) ||
+ !f2fs_crypt_mergeable_bio(bio, inode, page->index, NULL))) {
+submit_and_realloc:
+ __submit_bio(sbi, bio, DATA);
+ bio = NULL;
+ }
+
+ if (!bio) {
+ bio = f2fs_grab_read_bio(inode, blkaddr, nr_pages,
+ is_readahead ? REQ_RAHEAD : 0,
+ page->index, for_write);
+ if (IS_ERR(bio)) {
+ ret = PTR_ERR(bio);
+ dic->failed = true;
+ if (refcount_sub_and_test(dic->nr_cpages - i,
+ &dic->ref)) {
+ f2fs_decompress_end_io(dic->rpages,
+ cc->cluster_size, true,
+ false);
+ f2fs_free_dic(dic);
+ }
+ f2fs_put_dnode(&dn);
+ *bio_ret = NULL;
+ return ret;
+ }
+ }
+
+ f2fs_wait_on_block_writeback(inode, blkaddr);
+
+ if (bio_add_page(bio, page, blocksize, 0) < blocksize)
+ goto submit_and_realloc;
+
+ /* tag STEP_DECOMPRESS to handle IO in wq */
+ ctx = bio->bi_private;
+ if (!(ctx->enabled_steps & (1 << STEP_DECOMPRESS)))
+ ctx->enabled_steps |= 1 << STEP_DECOMPRESS;
+
+ inc_page_count(sbi, F2FS_RD_DATA);
+ f2fs_update_iostat(sbi, FS_DATA_READ_IO, F2FS_BLKSIZE);
+ f2fs_update_iostat(sbi, FS_CDATA_READ_IO, F2FS_BLKSIZE);
+ ClearPageError(page);
+ *last_block_in_bio = blkaddr;
+ }
+
+ f2fs_put_dnode(&dn);
+
+ *bio_ret = bio;
+ return 0;
+
+out_put_dnode:
+ f2fs_put_dnode(&dn);
+out:
+ f2fs_decompress_end_io(cc->rpages, cc->cluster_size, true, false);
+ *bio_ret = bio;
+ return ret;
+}
+#endif
+
/*
* This function was originally taken from fs/mpage.c, and customized for f2fs.
* Major change was from block_size == page_size in f2fs by default.
@@ -1466,20 +2359,28 @@ int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
* use ->readpage() or do the necessary surgery to decouple ->readpages()
* from read-ahead.
*/
-static int f2fs_mpage_readpages(struct address_space *mapping,
+int f2fs_mpage_readpages(struct address_space *mapping,
struct list_head *pages, struct page *page,
unsigned nr_pages, bool is_readahead)
{
struct bio *bio = NULL;
sector_t last_block_in_bio = 0;
struct inode *inode = mapping->host;
- const unsigned blkbits = inode->i_blkbits;
- const unsigned blocksize = 1 << blkbits;
- sector_t block_in_file;
- sector_t last_block;
- sector_t last_block_in_file;
- sector_t block_nr;
struct f2fs_map_blocks map;
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+ struct compress_ctx cc = {
+ .inode = inode,
+ .log_cluster_size = F2FS_I(inode)->i_log_cluster_size,
+ .cluster_size = F2FS_I(inode)->i_cluster_size,
+ .cluster_idx = NULL_CLUSTER,
+ .rpages = NULL,
+ .cpages = NULL,
+ .nr_rpages = 0,
+ .nr_cpages = 0,
+ };
+#endif
+ unsigned max_nr_pages = nr_pages;
+ int ret = 0;
map.m_pblk = 0;
map.m_lblk = 0;
@@ -1488,6 +2389,7 @@ static int f2fs_mpage_readpages(struct address_space *mapping,
map.m_next_pgofs = NULL;
map.m_next_extent = NULL;
map.m_seg_type = NO_CHECK_TYPE;
+ map.m_may_create = false;
for (; nr_pages; nr_pages--) {
if (pages) {
@@ -1496,125 +2398,91 @@ static int f2fs_mpage_readpages(struct address_space *mapping,
prefetchw(&page->flags);
list_del(&page->lru);
if (add_to_page_cache_lru(page, mapping,
- page->index,
+ page_index(page),
readahead_gfp_mask(mapping)))
goto next_page;
}
- block_in_file = (sector_t)page->index;
- last_block = block_in_file + nr_pages;
- last_block_in_file = (i_size_read(inode) + blocksize - 1) >>
- blkbits;
- if (last_block > last_block_in_file)
- last_block = last_block_in_file;
-
- /*
- * Map blocks using the previous result first.
- */
- if ((map.m_flags & F2FS_MAP_MAPPED) &&
- block_in_file > map.m_lblk &&
- block_in_file < (map.m_lblk + map.m_len))
- goto got_it;
-
- /*
- * Then do more f2fs_map_blocks() calls until we are
- * done with this page.
- */
- map.m_flags = 0;
-
- if (block_in_file < last_block) {
- map.m_lblk = block_in_file;
- map.m_len = last_block - block_in_file;
-
- if (f2fs_map_blocks(inode, &map, 0,
- F2FS_GET_BLOCK_DEFAULT))
- goto set_error_page;
- }
-got_it:
- if ((map.m_flags & F2FS_MAP_MAPPED)) {
- block_nr = map.m_pblk + block_in_file - map.m_lblk;
- SetPageMappedToDisk(page);
-
- if (!PageUptodate(page) && !cleancache_get_page(page)) {
- SetPageUptodate(page);
- goto confused;
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+ if (f2fs_compressed_file(inode)) {
+ /* there are remained comressed pages, submit them */
+ if (!f2fs_cluster_can_merge_page(&cc, page->index)) {
+ ret = f2fs_read_multi_pages(&cc, &bio,
+ max_nr_pages,
+ &last_block_in_bio,
+ is_readahead, false);
+ f2fs_destroy_compress_ctx(&cc);
+ if (ret)
+ goto set_error_page;
}
-
- if (!f2fs_is_valid_blkaddr(F2FS_I_SB(inode), block_nr,
- DATA_GENERIC))
+ ret = f2fs_is_compressed_cluster(inode, page->index);
+ if (ret < 0)
goto set_error_page;
- } else {
- zero_user_segment(page, 0, PAGE_SIZE);
- if (!PageUptodate(page))
- SetPageUptodate(page);
- unlock_page(page);
+ else if (!ret)
+ goto read_single_page;
+
+ ret = f2fs_init_compress_ctx(&cc);
+ if (ret)
+ goto set_error_page;
+
+ f2fs_compress_ctx_add_page(&cc, page);
+
goto next_page;
}
+read_single_page:
+#endif
- /*
- * This page will go to BIO. Do we need to send this
- * BIO off first?
- */
- if (bio && (last_block_in_bio != block_nr - 1 ||
- !__same_bdev(F2FS_I_SB(inode), block_nr, bio))) {
-submit_and_realloc:
- __submit_bio(F2FS_I_SB(inode), bio, DATA);
- bio = NULL;
- }
- if (bio == NULL) {
- bio = f2fs_grab_read_bio(inode, block_nr, nr_pages,
- is_readahead ? REQ_RAHEAD : 0);
- if (IS_ERR(bio)) {
- bio = NULL;
- goto set_error_page;
- }
- }
-
- /*
- * If the page is under writeback, we need to wait for
- * its completion to see the correct decrypted data.
- */
- f2fs_wait_on_block_writeback(inode, block_nr);
-
- if (bio_add_page(bio, page, blocksize, 0) < blocksize)
- goto submit_and_realloc;
-
- ClearPageError(page);
- last_block_in_bio = block_nr;
- goto next_page;
+ ret = f2fs_read_single_page(inode, page, max_nr_pages, &map,
+ &bio, &last_block_in_bio, is_readahead);
+ if (ret) {
+#ifdef CONFIG_F2FS_FS_COMPRESSION
set_error_page:
- SetPageError(page);
- zero_user_segment(page, 0, PAGE_SIZE);
- unlock_page(page);
- goto next_page;
-confused:
- if (bio) {
- __submit_bio(F2FS_I_SB(inode), bio, DATA);
- bio = NULL;
+#endif
+ SetPageError(page);
+ zero_user_segment(page, 0, PAGE_SIZE);
+ unlock_page(page);
}
- unlock_page(page);
next_page:
if (pages)
put_page(page);
+
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+ if (f2fs_compressed_file(inode)) {
+ /* last page */
+ if (nr_pages == 1 && !f2fs_cluster_is_empty(&cc)) {
+ ret = f2fs_read_multi_pages(&cc, &bio,
+ max_nr_pages,
+ &last_block_in_bio,
+ is_readahead, false);
+ f2fs_destroy_compress_ctx(&cc);
+ }
+ }
+#endif
}
BUG_ON(pages && !list_empty(pages));
if (bio)
- __submit_bio(F2FS_I_SB(inode), bio, DATA);
- return 0;
+ __f2fs_submit_read_bio(F2FS_I_SB(inode), bio, DATA);
+ return pages ? 0 : ret;
}
static int f2fs_read_data_page(struct file *file, struct page *page)
{
- struct inode *inode = page->mapping->host;
+ struct inode *inode = page_file_mapping(page)->host;
int ret = -EAGAIN;
trace_f2fs_readpage(page, DATA);
+ if (!f2fs_is_compress_backend_ready(inode)) {
+ unlock_page(page);
+ return -EOPNOTSUPP;
+ }
+
/* If the file has inline data, try to read it directly */
if (f2fs_has_inline_data(inode))
ret = f2fs_read_inline_data(inode, page);
if (ret == -EAGAIN)
- ret = f2fs_mpage_readpages(page->mapping, NULL, page, 1, false);
+ ret = f2fs_mpage_readpages(page_file_mapping(page),
+ NULL, page, 1, false);
return ret;
}
@@ -1627,6 +2495,9 @@ static int f2fs_read_data_pages(struct file *file,
trace_f2fs_readpages(inode, page, nr_pages);
+ if (!f2fs_is_compress_backend_ready(inode))
+ return 0;
+
/* If the file has inline data, skip readpages */
if (f2fs_has_inline_data(inode))
return 0;
@@ -1634,26 +2505,31 @@ static int f2fs_read_data_pages(struct file *file,
return f2fs_mpage_readpages(mapping, pages, NULL, nr_pages, true);
}
-static int encrypt_one_page(struct f2fs_io_info *fio)
+int f2fs_encrypt_one_page(struct f2fs_io_info *fio)
{
struct inode *inode = fio->page->mapping->host;
- struct page *mpage;
+ struct page *mpage, *page;
gfp_t gfp_flags = GFP_NOFS;
if (!f2fs_encrypted_file(inode))
return 0;
+ page = fio->compressed_page ? fio->compressed_page : fio->page;
+
/* wait for GCed page writeback via META_MAPPING */
f2fs_wait_on_block_writeback(inode, fio->old_blkaddr);
+ if (fscrypt_inode_uses_inline_crypto(inode))
+ return 0;
+
retry_encrypt:
- fio->encrypted_page = fscrypt_encrypt_page(inode, fio->page,
- PAGE_SIZE, 0, fio->page->index, gfp_flags);
+ fio->encrypted_page = fscrypt_encrypt_pagecache_blocks(page,
+ PAGE_SIZE, 0, gfp_flags);
if (IS_ERR(fio->encrypted_page)) {
/* flush pending IOs and wait for a while in the ENOMEM case */
if (PTR_ERR(fio->encrypted_page) == -ENOMEM) {
f2fs_flush_merged_writes(fio->sbi);
- congestion_wait(BLK_RW_ASYNC, HZ/50);
+ congestion_wait(BLK_RW_ASYNC, DEFAULT_IO_TIMEOUT);
gfp_flags |= __GFP_NOFAIL;
goto retry_encrypt;
}
@@ -1693,7 +2569,7 @@ static inline bool check_inplace_update_policy(struct inode *inode,
if (policy & (0x1 << F2FS_IPU_ASYNC) &&
fio && fio->op == REQ_OP_WRITE &&
!(fio->op_flags & REQ_SYNC) &&
- !f2fs_encrypted_inode(inode))
+ !IS_ENCRYPTED(inode))
return true;
/* this is only set during fdatasync */
@@ -1701,6 +2577,10 @@ static inline bool check_inplace_update_policy(struct inode *inode,
is_inode_flag_set(inode, FI_NEED_IPU))
return true;
+ if (unlikely(fio && is_sbi_flag_set(sbi, SBI_CP_DISABLED) &&
+ !f2fs_is_checkpointed_data(sbi, fio->old_blkaddr)))
+ return true;
+
return false;
}
@@ -1720,10 +2600,12 @@ bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
- if (test_opt(sbi, LFS))
+ if (f2fs_lfs_mode(sbi))
return true;
if (S_ISDIR(inode->i_mode))
return true;
+ if (IS_NOQUOTA(inode))
+ return true;
if (f2fs_is_atomic_file(inode))
return true;
if (fio) {
@@ -1731,6 +2613,9 @@ bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio)
return true;
if (IS_ATOMIC_WRITTEN_PAGE(fio->page))
return true;
+ if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED) &&
+ f2fs_is_checkpointed_data(sbi, fio->old_blkaddr)))
+ return true;
}
return false;
}
@@ -1761,7 +2646,7 @@ int f2fs_do_write_data_page(struct f2fs_io_info *fio)
fio->old_blkaddr = ei.blk + page->index - ei.fofs;
if (!f2fs_is_valid_blkaddr(fio->sbi, fio->old_blkaddr,
- DATA_GENERIC))
+ DATA_GENERIC_ENHANCE))
return -EFSCORRUPTED;
ipu_force = true;
@@ -1788,7 +2673,7 @@ int f2fs_do_write_data_page(struct f2fs_io_info *fio)
got_it:
if (__is_valid_data_blkaddr(fio->old_blkaddr) &&
!f2fs_is_valid_blkaddr(fio->sbi, fio->old_blkaddr,
- DATA_GENERIC)) {
+ DATA_GENERIC_ENHANCE)) {
err = -EFSCORRUPTED;
goto out_writepage;
}
@@ -1796,9 +2681,10 @@ int f2fs_do_write_data_page(struct f2fs_io_info *fio)
* If current allocation needs SSR,
* it had better in-place writes for updated data.
*/
- if (ipu_force || (is_valid_data_blkaddr(fio->sbi, fio->old_blkaddr) &&
+ if (ipu_force ||
+ (__is_valid_data_blkaddr(fio->old_blkaddr) &&
need_inplace_update(fio))) {
- err = encrypt_one_page(fio);
+ err = f2fs_encrypt_one_page(fio);
if (err)
goto out_writepage;
@@ -1808,8 +2694,15 @@ int f2fs_do_write_data_page(struct f2fs_io_info *fio)
if (fio->need_lock == LOCK_REQ)
f2fs_unlock_op(fio->sbi);
err = f2fs_inplace_write_data(fio);
+ if (err) {
+ if (fscrypt_inode_uses_fs_layer_crypto(inode))
+ fscrypt_finalize_bounce_page(&fio->encrypted_page);
+ if (PageWriteback(page))
+ end_page_writeback(page);
+ } else {
+ set_inode_flag(inode, FI_UPDATE_WRITE);
+ }
trace_f2fs_do_write_data_page(fio->page, IPU);
- set_inode_flag(inode, FI_UPDATE_WRITE);
return err;
}
@@ -1827,13 +2720,16 @@ int f2fs_do_write_data_page(struct f2fs_io_info *fio)
fio->version = ni.version;
- err = encrypt_one_page(fio);
+ err = f2fs_encrypt_one_page(fio);
if (err)
goto out_writepage;
set_page_writeback(page);
ClearPageError(page);
+ if (fio->compr_blocks && fio->old_blkaddr == COMPRESS_ADDR)
+ f2fs_i_compr_blocks_update(inode, fio->compr_blocks - 1, false);
+
/* LFS mode write path */
f2fs_outplace_write_data(&dn, fio);
trace_f2fs_do_write_data_page(page, OPU);
@@ -1848,14 +2744,17 @@ int f2fs_do_write_data_page(struct f2fs_io_info *fio)
return err;
}
-static int __write_data_page(struct page *page, bool *submitted,
+int f2fs_write_single_data_page(struct page *page, int *submitted,
+ struct bio **bio,
+ sector_t *last_block,
struct writeback_control *wbc,
- enum iostat_type io_type)
+ enum iostat_type io_type,
+ int compr_blocks)
{
struct inode *inode = page->mapping->host;
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
loff_t i_size = i_size_read(inode);
- const pgoff_t end_index = ((unsigned long long) i_size)
+ const pgoff_t end_index = ((unsigned long long)i_size)
>> PAGE_SHIFT;
loff_t psize = (loff_t)(page->index + 1) << PAGE_SHIFT;
unsigned offset = 0;
@@ -1871,9 +2770,12 @@ static int __write_data_page(struct page *page, bool *submitted,
.page = page,
.encrypted_page = NULL,
.submitted = false,
+ .compr_blocks = compr_blocks,
.need_lock = LOCK_RETRY,
.io_type = io_type,
.io_wbc = wbc,
+ .bio = bio,
+ .last_block = last_block,
};
trace_f2fs_writepage(page, DATA);
@@ -1893,7 +2795,9 @@ static int __write_data_page(struct page *page, bool *submitted,
if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
goto redirty_out;
- if (page->index < end_index)
+ if (page->index < end_index ||
+ f2fs_verity_in_progress(inode) ||
+ compr_blocks)
goto write;
/*
@@ -1914,8 +2818,8 @@ static int __write_data_page(struct page *page, bool *submitted,
f2fs_available_free_memory(sbi, BASE_CHECK))))
goto redirty_out;
- /* Dentry blocks are controlled by checkpoint */
- if (S_ISDIR(inode->i_mode)) {
+ /* Dentry/quota blocks are controlled by checkpoint */
+ if (S_ISDIR(inode->i_mode) || IS_NOQUOTA(inode)) {
fio.need_lock = LOCK_DONE;
err = f2fs_do_write_data_page(&fio);
goto done;
@@ -1946,10 +2850,10 @@ static int __write_data_page(struct page *page, bool *submitted,
if (err) {
file_set_keep_isize(inode);
} else {
- down_write(&F2FS_I(inode)->i_sem);
+ spin_lock(&F2FS_I(inode)->i_size_lock);
if (F2FS_I(inode)->last_disk_size < psize)
F2FS_I(inode)->last_disk_size = psize;
- up_write(&F2FS_I(inode)->i_sem);
+ spin_unlock(&F2FS_I(inode)->i_size_lock);
}
done:
@@ -1964,23 +2868,24 @@ static int __write_data_page(struct page *page, bool *submitted,
}
if (wbc->for_reclaim) {
- f2fs_submit_merged_write_cond(sbi, inode, 0, page->index, DATA);
+ f2fs_submit_merged_write_cond(sbi, NULL, page, 0, DATA);
clear_inode_flag(inode, FI_HOT_DATA);
f2fs_remove_dirty_inode(inode);
submitted = NULL;
}
-
unlock_page(page);
- if (!S_ISDIR(inode->i_mode))
+ if (!S_ISDIR(inode->i_mode) && !IS_NOQUOTA(inode) &&
+ !F2FS_I(inode)->cp_task)
f2fs_balance_fs(sbi, need_balance_fs);
if (unlikely(f2fs_cp_error(sbi))) {
f2fs_submit_merged_write(sbi, DATA);
+ f2fs_submit_merged_ipu_write(sbi, bio, NULL);
submitted = NULL;
}
if (submitted)
- *submitted = fio.submitted;
+ *submitted = fio.submitted ? 1 : 0;
return 0;
@@ -2001,7 +2906,23 @@ static int __write_data_page(struct page *page, bool *submitted,
static int f2fs_write_data_page(struct page *page,
struct writeback_control *wbc)
{
- return __write_data_page(page, NULL, wbc, FS_DATA_IO);
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+ struct inode *inode = page->mapping->host;
+
+ if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
+ goto out;
+
+ if (f2fs_compressed_file(inode)) {
+ if (f2fs_is_compressed_cluster(inode, page->index)) {
+ redirty_page_for_writepage(wbc, page);
+ return AOP_WRITEPAGE_ACTIVATE;
+ }
+ }
+out:
+#endif
+
+ return f2fs_write_single_data_page(page, NULL, NULL, NULL,
+ wbc, FS_DATA_IO, 0);
}
/*
@@ -2014,18 +2935,37 @@ static int f2fs_write_cache_pages(struct address_space *mapping,
enum iostat_type io_type)
{
int ret = 0;
- int done = 0;
+ int done = 0, retry = 0;
struct pagevec pvec;
struct f2fs_sb_info *sbi = F2FS_M_SB(mapping);
+ struct bio *bio = NULL;
+ sector_t last_block;
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+ struct inode *inode = mapping->host;
+ struct compress_ctx cc = {
+ .inode = inode,
+ .log_cluster_size = F2FS_I(inode)->i_log_cluster_size,
+ .cluster_size = F2FS_I(inode)->i_cluster_size,
+ .cluster_idx = NULL_CLUSTER,
+ .rpages = NULL,
+ .nr_rpages = 0,
+ .cpages = NULL,
+ .rbuf = NULL,
+ .cbuf = NULL,
+ .rlen = PAGE_SIZE * F2FS_I(inode)->i_cluster_size,
+ .private = NULL,
+ };
+#endif
int nr_pages;
pgoff_t uninitialized_var(writeback_index);
pgoff_t index;
pgoff_t end; /* Inclusive */
pgoff_t done_index;
- pgoff_t last_idx = ULONG_MAX;
- int cycled;
int range_whole = 0;
int tag;
+ int nwritten = 0;
+ int submitted = 0;
+ int i;
pagevec_init(&pvec);
@@ -2038,29 +2978,23 @@ static int f2fs_write_cache_pages(struct address_space *mapping,
if (wbc->range_cyclic) {
writeback_index = mapping->writeback_index; /* prev offset */
index = writeback_index;
- if (index == 0)
- cycled = 1;
- else
- cycled = 0;
end = -1;
} else {
index = wbc->range_start >> PAGE_SHIFT;
end = wbc->range_end >> PAGE_SHIFT;
if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX)
range_whole = 1;
- cycled = 1; /* ignore range_cyclic tests */
}
if (wbc->sync_mode == WB_SYNC_ALL || wbc->tagged_writepages)
tag = PAGECACHE_TAG_TOWRITE;
else
tag = PAGECACHE_TAG_DIRTY;
retry:
+ retry = 0;
if (wbc->sync_mode == WB_SYNC_ALL || wbc->tagged_writepages)
tag_pages_for_writeback(mapping, index, end);
done_index = index;
- while (!done && (index <= end)) {
- int i;
-
+ while (!done && !retry && (index <= end)) {
nr_pages = pagevec_lookup_range_tag(&pvec, mapping, &index, end,
tag);
if (nr_pages == 0)
@@ -2068,15 +3002,62 @@ static int f2fs_write_cache_pages(struct address_space *mapping,
for (i = 0; i < nr_pages; i++) {
struct page *page = pvec.pages[i];
- bool submitted = false;
+ bool need_readd;
+readd:
+ need_readd = false;
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+ if (f2fs_compressed_file(inode)) {
+ ret = f2fs_init_compress_ctx(&cc);
+ if (ret) {
+ done = 1;
+ break;
+ }
+ if (!f2fs_cluster_can_merge_page(&cc,
+ page->index)) {
+ ret = f2fs_write_multi_pages(&cc,
+ &submitted, wbc, io_type);
+ if (!ret)
+ need_readd = true;
+ goto result;
+ }
+
+ if (unlikely(f2fs_cp_error(sbi)))
+ goto lock_page;
+
+ if (f2fs_cluster_is_empty(&cc)) {
+ void *fsdata = NULL;
+ struct page *pagep;
+ int ret2;
+
+ ret2 = f2fs_prepare_compress_overwrite(
+ inode, &pagep,
+ page->index, &fsdata);
+ if (ret2 < 0) {
+ ret = ret2;
+ done = 1;
+ break;
+ } else if (ret2 &&
+ !f2fs_compress_write_end(inode,
+ fsdata, page->index,
+ 1)) {
+ retry = 1;
+ break;
+ }
+ } else {
+ goto lock_page;
+ }
+ }
+#endif
/* give a priority to WB_SYNC threads */
if (atomic_read(&sbi->wb_sync_req[DATA]) &&
wbc->sync_mode == WB_SYNC_NONE) {
done = 1;
break;
}
-
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+lock_page:
+#endif
done_index = page->index;
retry_write:
lock_page(page);
@@ -2095,64 +3076,94 @@ static int f2fs_write_cache_pages(struct address_space *mapping,
if (PageWriteback(page)) {
if (wbc->sync_mode != WB_SYNC_NONE)
f2fs_wait_on_page_writeback(page,
- DATA, true);
+ DATA, true, true);
else
goto continue_unlock;
}
- BUG_ON(PageWriteback(page));
if (!clear_page_dirty_for_io(page))
goto continue_unlock;
- ret = __write_data_page(page, &submitted, wbc, io_type);
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+ if (f2fs_compressed_file(inode)) {
+ get_page(page);
+ f2fs_compress_ctx_add_page(&cc, page);
+ continue;
+ }
+#endif
+ ret = f2fs_write_single_data_page(page, &submitted,
+ &bio, &last_block, wbc, io_type, 0);
+ if (ret == AOP_WRITEPAGE_ACTIVATE)
+ unlock_page(page);
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+result:
+#endif
+ nwritten += submitted;
+ wbc->nr_to_write -= submitted;
+
if (unlikely(ret)) {
/*
* keep nr_to_write, since vfs uses this to
* get # of written pages.
*/
if (ret == AOP_WRITEPAGE_ACTIVATE) {
- unlock_page(page);
ret = 0;
- continue;
+ goto next;
} else if (ret == -EAGAIN) {
ret = 0;
if (wbc->sync_mode == WB_SYNC_ALL) {
cond_resched();
congestion_wait(BLK_RW_ASYNC,
- HZ/50);
+ DEFAULT_IO_TIMEOUT);
goto retry_write;
}
- continue;
+ goto next;
}
done_index = page->index + 1;
done = 1;
break;
- } else if (submitted) {
- last_idx = page->index;
}
- if (--wbc->nr_to_write <= 0 &&
+ if (wbc->nr_to_write <= 0 &&
wbc->sync_mode == WB_SYNC_NONE) {
done = 1;
break;
}
+next:
+ if (need_readd)
+ goto readd;
}
pagevec_release(&pvec);
cond_resched();
}
-
- if (!cycled && !done) {
- cycled = 1;
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+ /* flush remained pages in compress cluster */
+ if (f2fs_compressed_file(inode) && !f2fs_cluster_is_empty(&cc)) {
+ ret = f2fs_write_multi_pages(&cc, &submitted, wbc, io_type);
+ nwritten += submitted;
+ wbc->nr_to_write -= submitted;
+ if (ret) {
+ done = 1;
+ retry = 0;
+ }
+ }
+#endif
+ if (retry) {
index = 0;
- end = writeback_index - 1;
+ end = -1;
goto retry;
}
+ if (wbc->range_cyclic && !done)
+ done_index = 0;
if (wbc->range_cyclic || (range_whole && wbc->nr_to_write > 0))
mapping->writeback_index = done_index;
- if (last_idx != ULONG_MAX)
+ if (nwritten)
f2fs_submit_merged_write_cond(F2FS_M_SB(mapping), mapping->host,
- 0, last_idx, DATA);
+ NULL, 0, DATA);
+ /* submit cached bio of IPU write */
+ if (bio)
+ f2fs_submit_merged_ipu_write(sbi, &bio, NULL);
return ret;
}
@@ -2160,8 +3171,17 @@ static int f2fs_write_cache_pages(struct address_space *mapping,
static inline bool __should_serialize_io(struct inode *inode,
struct writeback_control *wbc)
{
+ /* to avoid deadlock in path of data flush */
+ if (F2FS_I(inode)->cp_task)
+ return false;
+
if (!S_ISREG(inode->i_mode))
return false;
+ if (IS_NOQUOTA(inode))
+ return false;
+
+ if (f2fs_compressed_file(inode))
+ return true;
if (wbc->sync_mode != WB_SYNC_ALL)
return true;
if (get_dirty_pages(inode) >= SM_I(F2FS_I_SB(inode))->min_seq_blocks)
@@ -2191,7 +3211,8 @@ static int __f2fs_write_data_pages(struct address_space *mapping,
if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
goto skip_write;
- if (S_ISDIR(inode->i_mode) && wbc->sync_mode == WB_SYNC_NONE &&
+ if ((S_ISDIR(inode->i_mode) || IS_NOQUOTA(inode)) &&
+ wbc->sync_mode == WB_SYNC_NONE &&
get_dirty_pages(inode) < nr_pages_to_skip(sbi, DATA) &&
f2fs_available_free_memory(sbi, DIRTY_DENTS))
goto skip_write;
@@ -2251,7 +3272,11 @@ static void f2fs_write_failed(struct address_space *mapping, loff_t to)
struct inode *inode = mapping->host;
loff_t i_size = i_size_read(inode);
- if (to > i_size) {
+ if (IS_NOQUOTA(inode))
+ return;
+
+ /* In the fs-verity case, f2fs_end_enable_verity() does the truncate */
+ if (to > i_size && !f2fs_verity_in_progress(inode)) {
down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
down_write(&F2FS_I(inode)->i_mmap_sem);
@@ -2281,7 +3306,8 @@ static int prepare_write_begin(struct f2fs_sb_info *sbi,
* the block addresses when there is no need to fill the page.
*/
if (!f2fs_has_inline_data(inode) && len == PAGE_SIZE &&
- !is_inode_flag_set(inode, FI_NO_PREALLOC))
+ !is_inode_flag_set(inode, FI_NO_PREALLOC) &&
+ !f2fs_verity_in_progress(inode))
return 0;
/* f2fs_lock_op avoids race between write CP and convert_inline_page */
@@ -2295,6 +3321,7 @@ static int prepare_write_begin(struct f2fs_sb_info *sbi,
__do_map_lock(sbi, flag, true);
locked = true;
}
+
restart:
/* check inline_data */
ipage = f2fs_get_node_page(sbi, inode->i_ino);
@@ -2360,8 +3387,23 @@ static int f2fs_write_begin(struct file *file, struct address_space *mapping,
block_t blkaddr = NULL_ADDR;
int err = 0;
+ if (trace_android_fs_datawrite_start_enabled()) {
+ char *path, pathbuf[MAX_TRACE_PATHBUF_LEN];
+
+ path = android_fstrace_get_pathname(pathbuf,
+ MAX_TRACE_PATHBUF_LEN,
+ inode);
+ trace_android_fs_datawrite_start(inode, pos, len,
+ current->pid, path,
+ current->comm);
+ }
trace_f2fs_write_begin(inode, pos, len, flags);
+ if (!f2fs_is_checkpoint_ready(sbi)) {
+ err = -ENOSPC;
+ goto fail;
+ }
+
if ((f2fs_is_atomic_file(inode) &&
!f2fs_available_free_memory(sbi, INMEM_PAGES)) ||
is_inode_flag_set(inode, FI_ATOMIC_REVOKE_REQUEST)) {
@@ -2380,6 +3422,24 @@ static int f2fs_write_begin(struct file *file, struct address_space *mapping,
if (err)
goto fail;
}
+
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+ if (f2fs_compressed_file(inode)) {
+ int ret;
+
+ *fsdata = NULL;
+
+ ret = f2fs_prepare_compress_overwrite(inode, pagep,
+ index, fsdata);
+ if (ret < 0) {
+ err = ret;
+ goto fail;
+ } else if (ret) {
+ return 0;
+ }
+ }
+#endif
+
repeat:
/*
* Do not use grab_cache_page_write_begin() to avoid deadlock due to
@@ -2392,6 +3452,8 @@ static int f2fs_write_begin(struct file *file, struct address_space *mapping,
goto fail;
}
+ /* TODO: cluster can be compressed due to race with .writepage */
+
*pagep = page;
err = prepare_write_begin(sbi, page, pos, len,
@@ -2399,7 +3461,8 @@ static int f2fs_write_begin(struct file *file, struct address_space *mapping,
if (err)
goto fail;
- if (need_balance && has_not_enough_free_secs(sbi, 0, 0)) {
+ if (need_balance && !IS_NOQUOTA(inode) &&
+ has_not_enough_free_secs(sbi, 0, 0)) {
unlock_page(page);
f2fs_balance_fs(sbi, true);
lock_page(page);
@@ -2410,12 +3473,13 @@ static int f2fs_write_begin(struct file *file, struct address_space *mapping,
}
}
- f2fs_wait_on_page_writeback(page, DATA, false);
+ f2fs_wait_on_page_writeback(page, DATA, false, true);
if (len == PAGE_SIZE || PageUptodate(page))
return 0;
- if (!(pos & (PAGE_SIZE - 1)) && (pos + len) >= i_size_read(inode)) {
+ if (!(pos & (PAGE_SIZE - 1)) && (pos + len) >= i_size_read(inode) &&
+ !f2fs_verity_in_progress(inode)) {
zero_user_segment(page, len, PAGE_SIZE);
return 0;
}
@@ -2424,7 +3488,12 @@ static int f2fs_write_begin(struct file *file, struct address_space *mapping,
zero_user_segment(page, 0, PAGE_SIZE);
SetPageUptodate(page);
} else {
- err = f2fs_submit_page_read(inode, page, blkaddr);
+ if (!f2fs_is_valid_blkaddr(sbi, blkaddr,
+ DATA_GENERIC_ENHANCE_READ)) {
+ err = -EFSCORRUPTED;
+ goto fail;
+ }
+ err = f2fs_submit_page_read(inode, page, blkaddr, true);
if (err)
goto fail;
@@ -2455,6 +3524,7 @@ static int f2fs_write_end(struct file *file,
{
struct inode *inode = page->mapping->host;
+ trace_android_fs_datawrite_end(inode, pos, len);
trace_f2fs_write_end(inode, pos, len, copied);
/*
@@ -2468,12 +3538,23 @@ static int f2fs_write_end(struct file *file,
else
SetPageUptodate(page);
}
+
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+ /* overwrite compressed file */
+ if (f2fs_compressed_file(inode) && fsdata) {
+ f2fs_compress_write_end(inode, fsdata, page->index, copied);
+ f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
+ return copied;
+ }
+#endif
+
if (!copied)
goto unlock_out;
set_page_dirty(page);
- if (pos + copied > i_size_read(inode))
+ if (pos + copied > i_size_read(inode) &&
+ !f2fs_verity_in_progress(inode))
f2fs_i_size_write(inode, pos + copied);
unlock_out:
f2fs_put_page(page, 1);
@@ -2504,41 +3585,129 @@ static int check_direct_IO(struct inode *inode, struct iov_iter *iter,
return 0;
}
+static void f2fs_dio_end_io(struct bio *bio)
+{
+ struct f2fs_private_dio *dio = bio->bi_private;
+
+ dec_page_count(F2FS_I_SB(dio->inode),
+ dio->write ? F2FS_DIO_WRITE : F2FS_DIO_READ);
+
+ bio->bi_private = dio->orig_private;
+ bio->bi_end_io = dio->orig_end_io;
+
+ kvfree(dio);
+
+ bio_endio(bio);
+}
+
+static void f2fs_dio_submit_bio(struct bio *bio, struct inode *inode,
+ loff_t file_offset)
+{
+ struct f2fs_private_dio *dio;
+ bool write = (bio_op(bio) == REQ_OP_WRITE);
+
+ dio = f2fs_kzalloc(F2FS_I_SB(inode),
+ sizeof(struct f2fs_private_dio), GFP_NOFS);
+ if (!dio)
+ goto out;
+
+ dio->inode = inode;
+ dio->orig_end_io = bio->bi_end_io;
+ dio->orig_private = bio->bi_private;
+ dio->write = write;
+
+ bio->bi_end_io = f2fs_dio_end_io;
+ bio->bi_private = dio;
+
+ inc_page_count(F2FS_I_SB(inode),
+ write ? F2FS_DIO_WRITE : F2FS_DIO_READ);
+
+ submit_bio(bio);
+ return;
+out:
+ bio->bi_status = BLK_STS_IOERR;
+ bio_endio(bio);
+}
+
static ssize_t f2fs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
{
struct address_space *mapping = iocb->ki_filp->f_mapping;
struct inode *inode = mapping->host;
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+ struct f2fs_inode_info *fi = F2FS_I(inode);
size_t count = iov_iter_count(iter);
loff_t offset = iocb->ki_pos;
int rw = iov_iter_rw(iter);
int err;
enum rw_hint hint = iocb->ki_hint;
int whint_mode = F2FS_OPTION(sbi).whint_mode;
+ bool do_opu;
err = check_direct_IO(inode, iter, offset);
if (err)
return err < 0 ? err : 0;
- if (f2fs_force_buffered_io(inode, rw))
+ if (f2fs_force_buffered_io(inode, iocb, iter))
return 0;
+ do_opu = allow_outplace_dio(inode, iocb, iter);
+
trace_f2fs_direct_IO_enter(inode, offset, count, rw);
+ if (trace_android_fs_dataread_start_enabled() &&
+ (rw == READ)) {
+ char *path, pathbuf[MAX_TRACE_PATHBUF_LEN];
+
+ path = android_fstrace_get_pathname(pathbuf,
+ MAX_TRACE_PATHBUF_LEN,
+ inode);
+ trace_android_fs_dataread_start(inode, offset,
+ count, current->pid, path,
+ current->comm);
+ }
+ if (trace_android_fs_datawrite_start_enabled() &&
+ (rw == WRITE)) {
+ char *path, pathbuf[MAX_TRACE_PATHBUF_LEN];
+
+ path = android_fstrace_get_pathname(pathbuf,
+ MAX_TRACE_PATHBUF_LEN,
+ inode);
+ trace_android_fs_datawrite_start(inode, offset, count,
+ current->pid, path,
+ current->comm);
+ }
+
if (rw == WRITE && whint_mode == WHINT_MODE_OFF)
iocb->ki_hint = WRITE_LIFE_NOT_SET;
- if (!down_read_trylock(&F2FS_I(inode)->i_gc_rwsem[rw])) {
- if (iocb->ki_flags & IOCB_NOWAIT) {
+ if (iocb->ki_flags & IOCB_NOWAIT) {
+ if (!down_read_trylock(&fi->i_gc_rwsem[rw])) {
iocb->ki_hint = hint;
err = -EAGAIN;
goto out;
}
- down_read(&F2FS_I(inode)->i_gc_rwsem[rw]);
+ if (do_opu && !down_read_trylock(&fi->i_gc_rwsem[READ])) {
+ up_read(&fi->i_gc_rwsem[rw]);
+ iocb->ki_hint = hint;
+ err = -EAGAIN;
+ goto out;
+ }
+ } else {
+ down_read(&fi->i_gc_rwsem[rw]);
+ if (do_opu)
+ down_read(&fi->i_gc_rwsem[READ]);
}
- err = blockdev_direct_IO(iocb, inode, iter, get_data_block_dio);
- up_read(&F2FS_I(inode)->i_gc_rwsem[rw]);
+ err = __blockdev_direct_IO(iocb, inode, inode->i_sb->s_bdev,
+ iter, rw == WRITE ? get_data_block_dio_write :
+ get_data_block_dio, NULL, f2fs_dio_submit_bio,
+ rw == WRITE ? DIO_LOCKING | DIO_SKIP_HOLES :
+ DIO_SKIP_HOLES);
+
+ if (do_opu)
+ up_read(&fi->i_gc_rwsem[READ]);
+
+ up_read(&fi->i_gc_rwsem[rw]);
if (rw == WRITE) {
if (whint_mode == WHINT_MODE_OFF)
@@ -2546,13 +3715,24 @@ static ssize_t f2fs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
if (err > 0) {
f2fs_update_iostat(F2FS_I_SB(inode), APP_DIRECT_IO,
err);
- set_inode_flag(inode, FI_UPDATE_WRITE);
+ if (!do_opu)
+ set_inode_flag(inode, FI_UPDATE_WRITE);
} else if (err < 0) {
f2fs_write_failed(mapping, offset + count);
}
+ } else {
+ if (err > 0)
+ f2fs_update_iostat(sbi, APP_DIRECT_READ_IO, err);
}
out:
+ if (trace_android_fs_dataread_start_enabled() &&
+ (rw == READ))
+ trace_android_fs_dataread_end(inode, offset, count);
+ if (trace_android_fs_datawrite_start_enabled() &&
+ (rw == WRITE))
+ trace_android_fs_datawrite_end(inode, offset, count);
+
trace_f2fs_direct_IO_exit(inode, offset, count, rw, err);
return err;
@@ -2581,12 +3761,10 @@ void f2fs_invalidate_page(struct page *page, unsigned int offset,
clear_cold_data(page);
- /* This is atomic written page, keep Private */
if (IS_ATOMIC_WRITTEN_PAGE(page))
return f2fs_drop_inmem_page(inode, page);
- set_page_private(page, 0);
- ClearPagePrivate(page);
+ f2fs_clear_page_private(page);
}
int f2fs_release_page(struct page *page, gfp_t wait)
@@ -2600,20 +3778,20 @@ int f2fs_release_page(struct page *page, gfp_t wait)
return 0;
clear_cold_data(page);
- set_page_private(page, 0);
- ClearPagePrivate(page);
+ f2fs_clear_page_private(page);
return 1;
}
static int f2fs_set_data_page_dirty(struct page *page)
{
- struct address_space *mapping = page->mapping;
- struct inode *inode = mapping->host;
+ struct inode *inode = page_file_mapping(page)->host;
trace_f2fs_set_page_dirty(page, DATA);
if (!PageUptodate(page))
SetPageUptodate(page);
+ if (PageSwapCache(page))
+ return __set_page_dirty_nobuffers(page);
if (f2fs_is_atomic_file(inode) && !f2fs_is_commit_atomic_write(inode)) {
if (!IS_ATOMIC_WRITTEN_PAGE(page)) {
@@ -2635,6 +3813,37 @@ static int f2fs_set_data_page_dirty(struct page *page)
return 0;
}
+
+static sector_t f2fs_bmap_compress(struct inode *inode, sector_t block)
+{
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+ struct dnode_of_data dn;
+ sector_t start_idx, blknr = 0;
+ int ret;
+
+ start_idx = round_down(block, F2FS_I(inode)->i_cluster_size);
+
+ set_new_dnode(&dn, inode, NULL, NULL, 0);
+ ret = f2fs_get_dnode_of_data(&dn, start_idx, LOOKUP_NODE);
+ if (ret)
+ return 0;
+
+ if (dn.data_blkaddr != COMPRESS_ADDR) {
+ dn.ofs_in_node += block - start_idx;
+ blknr = f2fs_data_blkaddr(&dn);
+ if (!__is_valid_data_blkaddr(blknr))
+ blknr = 0;
+ }
+
+ f2fs_put_dnode(&dn);
+
+ return blknr;
+#else
+ return -EOPNOTSUPP;
+#endif
+}
+
+
static sector_t f2fs_bmap(struct address_space *mapping, sector_t block)
{
struct inode *inode = mapping->host;
@@ -2646,6 +3855,9 @@ static sector_t f2fs_bmap(struct address_space *mapping, sector_t block)
if (mapping_tagged(mapping, PAGECACHE_TAG_DIRTY))
filemap_write_and_wait(mapping);
+ if (f2fs_compressed_file(inode))
+ return f2fs_bmap_compress(inode, block);
+
return generic_block_bmap(mapping, block, get_data_block_bmap);
}
@@ -2669,12 +3881,8 @@ int f2fs_migrate_page(struct address_space *mapping,
return -EAGAIN;
}
- /*
- * A reference is expected if PagePrivate set when move mapping,
- * however F2FS breaks this for maintaining dirty page counts when
- * truncating pages. So here adjusting the 'extra_count' make it work.
- */
- extra_count = (atomic_written ? 1 : 0) - page_has_private(page);
+ /* one extra reference was held for atomic_write page */
+ extra_count = atomic_written ? 1 : 0;
rc = migrate_page_move_mapping(mapping, newpage,
page, NULL, mode, extra_count);
if (rc != MIGRATEPAGE_SUCCESS) {
@@ -2695,9 +3903,10 @@ int f2fs_migrate_page(struct address_space *mapping,
get_page(newpage);
}
- if (PagePrivate(page))
- SetPagePrivate(newpage);
- set_page_private(newpage, page_private(page));
+ if (PagePrivate(page)) {
+ f2fs_set_page_private(newpage, page_private(page));
+ f2fs_clear_page_private(page);
+ }
if (mode != MIGRATE_SYNC_NO_COPY)
migrate_page_copy(newpage, page);
@@ -2708,6 +3917,147 @@ int f2fs_migrate_page(struct address_space *mapping,
}
#endif
+#ifdef CONFIG_SWAP
+/* Copied from generic_swapfile_activate() to check any holes */
+static int check_swap_activate(struct swap_info_struct *sis,
+ struct file *swap_file, sector_t *span)
+{
+ struct address_space *mapping = swap_file->f_mapping;
+ struct inode *inode = mapping->host;
+ unsigned blocks_per_page;
+ unsigned long page_no;
+ unsigned blkbits;
+ sector_t probe_block;
+ sector_t last_block;
+ sector_t lowest_block = -1;
+ sector_t highest_block = 0;
+ int nr_extents = 0;
+ int ret;
+
+ blkbits = inode->i_blkbits;
+ blocks_per_page = PAGE_SIZE >> blkbits;
+
+ /*
+ * Map all the blocks into the extent list. This code doesn't try
+ * to be very smart.
+ */
+ probe_block = 0;
+ page_no = 0;
+ last_block = i_size_read(inode) >> blkbits;
+ while ((probe_block + blocks_per_page) <= last_block &&
+ page_no < sis->max) {
+ unsigned block_in_page;
+ sector_t first_block;
+
+ cond_resched();
+
+ first_block = bmap(inode, probe_block);
+ if (first_block == 0)
+ goto bad_bmap;
+
+ /*
+ * It must be PAGE_SIZE aligned on-disk
+ */
+ if (first_block & (blocks_per_page - 1)) {
+ probe_block++;
+ goto reprobe;
+ }
+
+ for (block_in_page = 1; block_in_page < blocks_per_page;
+ block_in_page++) {
+ sector_t block;
+
+ block = bmap(inode, probe_block + block_in_page);
+ if (block == 0)
+ goto bad_bmap;
+ if (block != first_block + block_in_page) {
+ /* Discontiguity */
+ probe_block++;
+ goto reprobe;
+ }
+ }
+
+ first_block >>= (PAGE_SHIFT - blkbits);
+ if (page_no) { /* exclude the header page */
+ if (first_block < lowest_block)
+ lowest_block = first_block;
+ if (first_block > highest_block)
+ highest_block = first_block;
+ }
+
+ /*
+ * We found a PAGE_SIZE-length, PAGE_SIZE-aligned run of blocks
+ */
+ ret = add_swap_extent(sis, page_no, 1, first_block);
+ if (ret < 0)
+ goto out;
+ nr_extents += ret;
+ page_no++;
+ probe_block += blocks_per_page;
+reprobe:
+ continue;
+ }
+ ret = nr_extents;
+ *span = 1 + highest_block - lowest_block;
+ if (page_no == 0)
+ page_no = 1; /* force Empty message */
+ sis->max = page_no;
+ sis->pages = page_no - 1;
+ sis->highest_bit = page_no - 1;
+out:
+ return ret;
+bad_bmap:
+ pr_err("swapon: swapfile has holes\n");
+ return -EINVAL;
+}
+
+static int f2fs_swap_activate(struct swap_info_struct *sis, struct file *file,
+ sector_t *span)
+{
+ struct inode *inode = file_inode(file);
+ int ret;
+
+ if (!S_ISREG(inode->i_mode))
+ return -EINVAL;
+
+ if (f2fs_readonly(F2FS_I_SB(inode)->sb))
+ return -EROFS;
+
+ ret = f2fs_convert_inline_inode(inode);
+ if (ret)
+ return ret;
+
+ if (f2fs_disable_compressed_file(inode))
+ return -EINVAL;
+
+ ret = check_swap_activate(sis, file, span);
+ if (ret < 0)
+ return ret;
+
+ set_inode_flag(inode, FI_PIN_FILE);
+ f2fs_precache_extents(inode);
+ f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
+ return ret;
+}
+
+static void f2fs_swap_deactivate(struct file *file)
+{
+ struct inode *inode = file_inode(file);
+
+ clear_inode_flag(inode, FI_PIN_FILE);
+}
+#else
+static int f2fs_swap_activate(struct swap_info_struct *sis, struct file *file,
+ sector_t *span)
+{
+ return -EOPNOTSUPP;
+}
+
+static void f2fs_swap_deactivate(struct file *file)
+{
+}
+#endif
+
const struct address_space_operations f2fs_dblock_aops = {
.readpage = f2fs_read_data_page,
.readpages = f2fs_read_data_pages,
@@ -2720,6 +4070,8 @@ const struct address_space_operations f2fs_dblock_aops = {
.releasepage = f2fs_release_page,
.direct_IO = f2fs_direct_IO,
.bmap = f2fs_bmap,
+ .swap_activate = f2fs_swap_activate,
+ .swap_deactivate = f2fs_swap_deactivate,
#ifdef CONFIG_MIGRATION
.migratepage = f2fs_migrate_page,
#endif
@@ -2738,7 +4090,9 @@ void f2fs_clear_radix_tree_dirty_tag(struct page *page)
int __init f2fs_init_post_read_processing(void)
{
- bio_post_read_ctx_cache = KMEM_CACHE(bio_post_read_ctx, 0);
+ bio_post_read_ctx_cache =
+ kmem_cache_create("f2fs_bio_post_read_ctx",
+ sizeof(struct bio_post_read_ctx), 0, 0, NULL);
if (!bio_post_read_ctx_cache)
goto fail;
bio_post_read_ctx_pool =
@@ -2754,8 +4108,43 @@ int __init f2fs_init_post_read_processing(void)
return -ENOMEM;
}
-void __exit f2fs_destroy_post_read_processing(void)
+void f2fs_destroy_post_read_processing(void)
{
mempool_destroy(bio_post_read_ctx_pool);
kmem_cache_destroy(bio_post_read_ctx_cache);
}
+
+int f2fs_init_post_read_wq(struct f2fs_sb_info *sbi)
+{
+ if (!f2fs_sb_has_encrypt(sbi) &&
+ !f2fs_sb_has_verity(sbi) &&
+ !f2fs_sb_has_compression(sbi))
+ return 0;
+
+ sbi->post_read_wq = alloc_workqueue("f2fs_post_read_wq",
+ WQ_UNBOUND | WQ_HIGHPRI,
+ num_online_cpus());
+ if (!sbi->post_read_wq)
+ return -ENOMEM;
+ return 0;
+}
+
+void f2fs_destroy_post_read_wq(struct f2fs_sb_info *sbi)
+{
+ if (sbi->post_read_wq)
+ destroy_workqueue(sbi->post_read_wq);
+}
+
+int __init f2fs_init_bio_entry_cache(void)
+{
+ bio_entry_slab = f2fs_kmem_cache_create("f2fs_bio_entry_slab",
+ sizeof(struct bio_entry));
+ if (!bio_entry_slab)
+ return -ENOMEM;
+ return 0;
+}
+
+void f2fs_destroy_bio_entry_cache(void)
+{
+ kmem_cache_destroy(bio_entry_slab);
+}
diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c
index bbe1554..0dbcb0f 100644
--- a/fs/f2fs/debug.c
+++ b/fs/f2fs/debug.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* f2fs debugging statistics
*
@@ -5,10 +6,6 @@
* http://www.samsung.com/
* Copyright (c) 2012 Linux Foundation
* Copyright (c) 2012 Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/fs.h>
@@ -24,117 +21,15 @@
#include "gc.h"
static LIST_HEAD(f2fs_stat_list);
-static struct dentry *f2fs_debugfs_root;
static DEFINE_MUTEX(f2fs_stat_mutex);
-
-static void update_general_status(struct f2fs_sb_info *sbi)
-{
- struct f2fs_stat_info *si = F2FS_STAT(sbi);
- int i;
-
- /* validation check of the segment numbers */
- si->hit_largest = atomic64_read(&sbi->read_hit_largest);
- si->hit_cached = atomic64_read(&sbi->read_hit_cached);
- si->hit_rbtree = atomic64_read(&sbi->read_hit_rbtree);
- si->hit_total = si->hit_largest + si->hit_cached + si->hit_rbtree;
- si->total_ext = atomic64_read(&sbi->total_hit_ext);
- si->ext_tree = atomic_read(&sbi->total_ext_tree);
- si->zombie_tree = atomic_read(&sbi->total_zombie_tree);
- si->ext_node = atomic_read(&sbi->total_ext_node);
- si->ndirty_node = get_pages(sbi, F2FS_DIRTY_NODES);
- si->ndirty_dent = get_pages(sbi, F2FS_DIRTY_DENTS);
- si->ndirty_meta = get_pages(sbi, F2FS_DIRTY_META);
- si->ndirty_data = get_pages(sbi, F2FS_DIRTY_DATA);
- si->ndirty_qdata = get_pages(sbi, F2FS_DIRTY_QDATA);
- si->ndirty_imeta = get_pages(sbi, F2FS_DIRTY_IMETA);
- si->ndirty_dirs = sbi->ndirty_inode[DIR_INODE];
- si->ndirty_files = sbi->ndirty_inode[FILE_INODE];
- si->nquota_files = sbi->nquota_files;
- si->ndirty_all = sbi->ndirty_inode[DIRTY_META];
- si->inmem_pages = get_pages(sbi, F2FS_INMEM_PAGES);
- si->aw_cnt = atomic_read(&sbi->aw_cnt);
- si->vw_cnt = atomic_read(&sbi->vw_cnt);
- si->max_aw_cnt = atomic_read(&sbi->max_aw_cnt);
- si->max_vw_cnt = atomic_read(&sbi->max_vw_cnt);
- si->nr_wb_cp_data = get_pages(sbi, F2FS_WB_CP_DATA);
- si->nr_wb_data = get_pages(sbi, F2FS_WB_DATA);
- if (SM_I(sbi) && SM_I(sbi)->fcc_info) {
- si->nr_flushed =
- atomic_read(&SM_I(sbi)->fcc_info->issued_flush);
- si->nr_flushing =
- atomic_read(&SM_I(sbi)->fcc_info->issing_flush);
- si->flush_list_empty =
- llist_empty(&SM_I(sbi)->fcc_info->issue_list);
- }
- if (SM_I(sbi) && SM_I(sbi)->dcc_info) {
- si->nr_discarded =
- atomic_read(&SM_I(sbi)->dcc_info->issued_discard);
- si->nr_discarding =
- atomic_read(&SM_I(sbi)->dcc_info->issing_discard);
- si->nr_discard_cmd =
- atomic_read(&SM_I(sbi)->dcc_info->discard_cmd_cnt);
- si->undiscard_blks = SM_I(sbi)->dcc_info->undiscard_blks;
- }
- si->total_count = (int)sbi->user_block_count / sbi->blocks_per_seg;
- si->rsvd_segs = reserved_segments(sbi);
- si->overp_segs = overprovision_segments(sbi);
- si->valid_count = valid_user_blocks(sbi);
- si->discard_blks = discard_blocks(sbi);
- si->valid_node_count = valid_node_count(sbi);
- si->valid_inode_count = valid_inode_count(sbi);
- si->inline_xattr = atomic_read(&sbi->inline_xattr);
- si->inline_inode = atomic_read(&sbi->inline_inode);
- si->inline_dir = atomic_read(&sbi->inline_dir);
- si->append = sbi->im[APPEND_INO].ino_num;
- si->update = sbi->im[UPDATE_INO].ino_num;
- si->orphans = sbi->im[ORPHAN_INO].ino_num;
- si->utilization = utilization(sbi);
-
- si->free_segs = free_segments(sbi);
- si->free_secs = free_sections(sbi);
- si->prefree_count = prefree_segments(sbi);
- si->dirty_count = dirty_segments(sbi);
- if (sbi->node_inode)
- si->node_pages = NODE_MAPPING(sbi)->nrpages;
- if (sbi->meta_inode)
- si->meta_pages = META_MAPPING(sbi)->nrpages;
- si->nats = NM_I(sbi)->nat_cnt;
- si->dirty_nats = NM_I(sbi)->dirty_nat_cnt;
- si->sits = MAIN_SEGS(sbi);
- si->dirty_sits = SIT_I(sbi)->dirty_sentries;
- si->free_nids = NM_I(sbi)->nid_cnt[FREE_NID];
- si->avail_nids = NM_I(sbi)->available_nids;
- si->alloc_nids = NM_I(sbi)->nid_cnt[PREALLOC_NID];
- si->bg_gc = sbi->bg_gc;
- si->skipped_atomic_files[BG_GC] = sbi->skipped_atomic_files[BG_GC];
- si->skipped_atomic_files[FG_GC] = sbi->skipped_atomic_files[FG_GC];
- si->util_free = (int)(free_user_blocks(sbi) >> sbi->log_blocks_per_seg)
- * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg)
- / 2;
- si->util_valid = (int)(written_block_count(sbi) >>
- sbi->log_blocks_per_seg)
- * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg)
- / 2;
- si->util_invalid = 50 - si->util_free - si->util_valid;
- for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_NODE; i++) {
- struct curseg_info *curseg = CURSEG_I(sbi, i);
- si->curseg[i] = curseg->segno;
- si->cursec[i] = GET_SEC_FROM_SEG(sbi, curseg->segno);
- si->curzone[i] = GET_ZONE_FROM_SEC(sbi, si->cursec[i]);
- }
-
- for (i = 0; i < 2; i++) {
- si->segment_count[i] = sbi->segment_count[i];
- si->block_count[i] = sbi->block_count[i];
- }
-
- si->inplace_count = atomic_read(&sbi->inplace_count);
-}
+#ifdef CONFIG_DEBUG_FS
+static struct dentry *f2fs_debugfs_root;
+#endif
/*
* This function calculates BDF of every segments
*/
-static void update_sit_info(struct f2fs_sb_info *sbi)
+void f2fs_update_sit_info(struct f2fs_sb_info *sbi)
{
struct f2fs_stat_info *si = F2FS_STAT(sbi);
unsigned long long blks_per_sec, hblks_per_sec, total_vblocks;
@@ -164,6 +59,129 @@ static void update_sit_info(struct f2fs_sb_info *sbi)
si->avg_vblocks = 0;
}
+#ifdef CONFIG_DEBUG_FS
+static void update_general_status(struct f2fs_sb_info *sbi)
+{
+ struct f2fs_stat_info *si = F2FS_STAT(sbi);
+ struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
+ int i;
+
+ /* these will be changed if online resize is done */
+ si->main_area_segs = le32_to_cpu(raw_super->segment_count_main);
+ si->main_area_sections = le32_to_cpu(raw_super->section_count);
+ si->main_area_zones = si->main_area_sections /
+ le32_to_cpu(raw_super->secs_per_zone);
+
+ /* validation check of the segment numbers */
+ si->hit_largest = atomic64_read(&sbi->read_hit_largest);
+ si->hit_cached = atomic64_read(&sbi->read_hit_cached);
+ si->hit_rbtree = atomic64_read(&sbi->read_hit_rbtree);
+ si->hit_total = si->hit_largest + si->hit_cached + si->hit_rbtree;
+ si->total_ext = atomic64_read(&sbi->total_hit_ext);
+ si->ext_tree = atomic_read(&sbi->total_ext_tree);
+ si->zombie_tree = atomic_read(&sbi->total_zombie_tree);
+ si->ext_node = atomic_read(&sbi->total_ext_node);
+ si->ndirty_node = get_pages(sbi, F2FS_DIRTY_NODES);
+ si->ndirty_dent = get_pages(sbi, F2FS_DIRTY_DENTS);
+ si->ndirty_meta = get_pages(sbi, F2FS_DIRTY_META);
+ si->ndirty_data = get_pages(sbi, F2FS_DIRTY_DATA);
+ si->ndirty_qdata = get_pages(sbi, F2FS_DIRTY_QDATA);
+ si->ndirty_imeta = get_pages(sbi, F2FS_DIRTY_IMETA);
+ si->ndirty_dirs = sbi->ndirty_inode[DIR_INODE];
+ si->ndirty_files = sbi->ndirty_inode[FILE_INODE];
+ si->nquota_files = sbi->nquota_files;
+ si->ndirty_all = sbi->ndirty_inode[DIRTY_META];
+ si->inmem_pages = get_pages(sbi, F2FS_INMEM_PAGES);
+ si->aw_cnt = sbi->atomic_files;
+ si->vw_cnt = atomic_read(&sbi->vw_cnt);
+ si->max_aw_cnt = atomic_read(&sbi->max_aw_cnt);
+ si->max_vw_cnt = atomic_read(&sbi->max_vw_cnt);
+ si->nr_dio_read = get_pages(sbi, F2FS_DIO_READ);
+ si->nr_dio_write = get_pages(sbi, F2FS_DIO_WRITE);
+ si->nr_wb_cp_data = get_pages(sbi, F2FS_WB_CP_DATA);
+ si->nr_wb_data = get_pages(sbi, F2FS_WB_DATA);
+ si->nr_rd_data = get_pages(sbi, F2FS_RD_DATA);
+ si->nr_rd_node = get_pages(sbi, F2FS_RD_NODE);
+ si->nr_rd_meta = get_pages(sbi, F2FS_RD_META);
+ if (SM_I(sbi)->fcc_info) {
+ si->nr_flushed =
+ atomic_read(&SM_I(sbi)->fcc_info->issued_flush);
+ si->nr_flushing =
+ atomic_read(&SM_I(sbi)->fcc_info->queued_flush);
+ si->flush_list_empty =
+ llist_empty(&SM_I(sbi)->fcc_info->issue_list);
+ }
+ if (SM_I(sbi)->dcc_info) {
+ si->nr_discarded =
+ atomic_read(&SM_I(sbi)->dcc_info->issued_discard);
+ si->nr_discarding =
+ atomic_read(&SM_I(sbi)->dcc_info->queued_discard);
+ si->nr_discard_cmd =
+ atomic_read(&SM_I(sbi)->dcc_info->discard_cmd_cnt);
+ si->undiscard_blks = SM_I(sbi)->dcc_info->undiscard_blks;
+ }
+ si->total_count = (int)sbi->user_block_count / sbi->blocks_per_seg;
+ si->rsvd_segs = reserved_segments(sbi);
+ si->overp_segs = overprovision_segments(sbi);
+ si->valid_count = valid_user_blocks(sbi);
+ si->discard_blks = discard_blocks(sbi);
+ si->valid_node_count = valid_node_count(sbi);
+ si->valid_inode_count = valid_inode_count(sbi);
+ si->inline_xattr = atomic_read(&sbi->inline_xattr);
+ si->inline_inode = atomic_read(&sbi->inline_inode);
+ si->inline_dir = atomic_read(&sbi->inline_dir);
+ si->compr_inode = atomic_read(&sbi->compr_inode);
+ si->compr_blocks = atomic_read(&sbi->compr_blocks);
+ si->append = sbi->im[APPEND_INO].ino_num;
+ si->update = sbi->im[UPDATE_INO].ino_num;
+ si->orphans = sbi->im[ORPHAN_INO].ino_num;
+ si->utilization = utilization(sbi);
+
+ si->free_segs = free_segments(sbi);
+ si->free_secs = free_sections(sbi);
+ si->prefree_count = prefree_segments(sbi);
+ si->dirty_count = dirty_segments(sbi);
+ if (sbi->node_inode)
+ si->node_pages = NODE_MAPPING(sbi)->nrpages;
+ if (sbi->meta_inode)
+ si->meta_pages = META_MAPPING(sbi)->nrpages;
+ si->nats = NM_I(sbi)->nat_cnt;
+ si->dirty_nats = NM_I(sbi)->dirty_nat_cnt;
+ si->sits = MAIN_SEGS(sbi);
+ si->dirty_sits = SIT_I(sbi)->dirty_sentries;
+ si->free_nids = NM_I(sbi)->nid_cnt[FREE_NID];
+ si->avail_nids = NM_I(sbi)->available_nids;
+ si->alloc_nids = NM_I(sbi)->nid_cnt[PREALLOC_NID];
+ si->io_skip_bggc = sbi->io_skip_bggc;
+ si->other_skip_bggc = sbi->other_skip_bggc;
+ si->skipped_atomic_files[BG_GC] = sbi->skipped_atomic_files[BG_GC];
+ si->skipped_atomic_files[FG_GC] = sbi->skipped_atomic_files[FG_GC];
+ si->util_free = (int)(free_user_blocks(sbi) >> sbi->log_blocks_per_seg)
+ * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg)
+ / 2;
+ si->util_valid = (int)(written_block_count(sbi) >>
+ sbi->log_blocks_per_seg)
+ * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg)
+ / 2;
+ si->util_invalid = 50 - si->util_free - si->util_valid;
+ for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_NODE; i++) {
+ struct curseg_info *curseg = CURSEG_I(sbi, i);
+ si->curseg[i] = curseg->segno;
+ si->cursec[i] = GET_SEC_FROM_SEG(sbi, curseg->segno);
+ si->curzone[i] = GET_ZONE_FROM_SEC(sbi, si->cursec[i]);
+ }
+
+ for (i = META_CP; i < META_MAX; i++)
+ si->meta_count[i] = atomic_read(&sbi->meta_count[i]);
+
+ for (i = 0; i < 2; i++) {
+ si->segment_count[i] = sbi->segment_count[i];
+ si->block_count[i] = sbi->block_count[i];
+ }
+
+ si->inplace_count = atomic_read(&sbi->inplace_count);
+}
+
/*
* This function calculates memory footprint.
*/
@@ -193,7 +211,7 @@ static void update_mem_info(struct f2fs_sb_info *sbi)
si->base_mem += 2 * SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi);
si->base_mem += SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi);
si->base_mem += SIT_VBLOCK_MAP_SIZE;
- if (sbi->segs_per_sec > 1)
+ if (__is_large_section(sbi))
si->base_mem += MAIN_SECS(sbi) * sizeof(struct sec_entry);
si->base_mem += __bitmap_size(sbi, SIT_BITMAP);
@@ -275,13 +293,17 @@ static int stat_show(struct seq_file *s, void *v)
seq_printf(s, "\n=====[ partition info(%pg). #%d, %s, CP: %s]=====\n",
si->sbi->sb->s_bdev, i++,
f2fs_readonly(si->sbi->sb) ? "RO": "RW",
- f2fs_cp_error(si->sbi) ? "Error": "Good");
+ is_set_ckpt_flags(si->sbi, CP_DISABLED_FLAG) ?
+ "Disabled": (f2fs_cp_error(si->sbi) ? "Error": "Good"));
seq_printf(s, "[SB: 1] [CP: 2] [SIT: %d] [NAT: %d] ",
si->sit_area_segs, si->nat_area_segs);
seq_printf(s, "[SSA: %d] [MAIN: %d",
si->ssa_area_segs, si->main_area_segs);
seq_printf(s, "(OverProv:%d Resv:%d)]\n\n",
si->overp_segs, si->rsvd_segs);
+ seq_printf(s, "Current Time Sec: %llu / Mounted Time Sec: %llu\n\n",
+ ktime_get_boottime_seconds(),
+ SIT_I(si->sbi)->mounted_time);
if (test_opt(si->sbi, DISCARD))
seq_printf(s, "Utilization: %u%% (%u valid blocks, %u discard blocks)\n",
si->utilization, si->valid_count, si->discard_blks);
@@ -300,6 +322,8 @@ static int stat_show(struct seq_file *s, void *v)
si->inline_inode);
seq_printf(s, " - Inline_dentry Inode: %u\n",
si->inline_dir);
+ seq_printf(s, " - Compressed Inode: %u, Blocks: %u\n",
+ si->compr_inode, si->compr_blocks);
seq_printf(s, " - Orphan/Append/Update Inode: %u, %u, %u\n",
si->orphans, si->append, si->update);
seq_printf(s, "\nMain area: %d segs, %d secs %d zones\n",
@@ -337,6 +361,13 @@ static int stat_show(struct seq_file *s, void *v)
si->prefree_count, si->free_segs, si->free_secs);
seq_printf(s, "CP calls: %d (BG: %d)\n",
si->cp_count, si->bg_cp_count);
+ seq_printf(s, " - cp blocks : %u\n", si->meta_count[META_CP]);
+ seq_printf(s, " - sit blocks : %u\n",
+ si->meta_count[META_SIT]);
+ seq_printf(s, " - nat blocks : %u\n",
+ si->meta_count[META_NAT]);
+ seq_printf(s, " - ssa blocks : %u\n",
+ si->meta_count[META_SSA]);
seq_printf(s, "GC calls: %d (BG: %d)\n",
si->call_count, si->bg_gc);
seq_printf(s, " - data segments : %d (%d)\n",
@@ -353,6 +384,8 @@ static int stat_show(struct seq_file *s, void *v)
si->skipped_atomic_files[BG_GC] +
si->skipped_atomic_files[FG_GC],
si->skipped_atomic_files[BG_GC]);
+ seq_printf(s, "BG skip : IO: %u, Other: %u\n",
+ si->io_skip_bggc, si->other_skip_bggc);
seq_puts(s, "\nExtent Cache:\n");
seq_printf(s, " - Hit Count: L1-1:%llu L1-2:%llu L2:%llu\n",
si->hit_largest, si->hit_cached,
@@ -364,7 +397,11 @@ static int stat_show(struct seq_file *s, void *v)
seq_printf(s, " - Inner Struct Count: tree: %d(%d), node: %d\n",
si->ext_tree, si->zombie_tree, si->ext_node);
seq_puts(s, "\nBalancing F2FS Async:\n");
- seq_printf(s, " - IO (CP: %4d, Data: %4d, Flush: (%4d %4d %4d), "
+ seq_printf(s, " - DIO (R: %4d, W: %4d)\n",
+ si->nr_dio_read, si->nr_dio_write);
+ seq_printf(s, " - IO_R (Data: %4d, Node: %4d, Meta: %4d\n",
+ si->nr_rd_data, si->nr_rd_node, si->nr_rd_meta);
+ seq_printf(s, " - IO_W (CP: %4d, Data: %4d, Flush: (%4d %4d %4d), "
"Discard: (%4d %4d)) cmd: %4d undiscard:%4u\n",
si->nr_wb_cp_data, si->nr_wb_data,
si->nr_flushing, si->nr_flushed,
@@ -413,7 +450,7 @@ static int stat_show(struct seq_file *s, void *v)
si->block_count[LFS], si->segment_count[LFS]);
/* segment usage info */
- update_sit_info(si->sbi);
+ f2fs_update_sit_info(si->sbi);
seq_printf(s, "\nBDF: %u, avg. vblocks: %u\n",
si->bimodal, si->avg_vblocks);
@@ -432,23 +469,14 @@ static int stat_show(struct seq_file *s, void *v)
return 0;
}
-static int stat_open(struct inode *inode, struct file *file)
-{
- return single_open(file, stat_show, inode->i_private);
-}
-
-static const struct file_operations stat_fops = {
- .owner = THIS_MODULE,
- .open = stat_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(stat);
+#endif
int f2fs_build_stats(struct f2fs_sb_info *sbi)
{
struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
struct f2fs_stat_info *si;
+ int i;
si = f2fs_kzalloc(sbi, sizeof(struct f2fs_stat_info), GFP_KERNEL);
if (!si)
@@ -473,9 +501,12 @@ int f2fs_build_stats(struct f2fs_sb_info *sbi)
atomic_set(&sbi->inline_xattr, 0);
atomic_set(&sbi->inline_inode, 0);
atomic_set(&sbi->inline_dir, 0);
+ atomic_set(&sbi->compr_inode, 0);
+ atomic_set(&sbi->compr_blocks, 0);
atomic_set(&sbi->inplace_count, 0);
+ for (i = META_CP; i < META_MAX; i++)
+ atomic_set(&sbi->meta_count[i], 0);
- atomic_set(&sbi->aw_cnt, 0);
atomic_set(&sbi->vw_cnt, 0);
atomic_set(&sbi->max_aw_cnt, 0);
atomic_set(&sbi->max_vw_cnt, 0);
@@ -495,33 +526,23 @@ void f2fs_destroy_stats(struct f2fs_sb_info *sbi)
list_del(&si->stat_list);
mutex_unlock(&f2fs_stat_mutex);
- kfree(si);
+ kvfree(si);
}
-int __init f2fs_create_root_stats(void)
+void __init f2fs_create_root_stats(void)
{
- struct dentry *file;
-
+#ifdef CONFIG_DEBUG_FS
f2fs_debugfs_root = debugfs_create_dir("f2fs", NULL);
- if (!f2fs_debugfs_root)
- return -ENOMEM;
- file = debugfs_create_file("status", S_IRUGO, f2fs_debugfs_root,
- NULL, &stat_fops);
- if (!file) {
- debugfs_remove(f2fs_debugfs_root);
- f2fs_debugfs_root = NULL;
- return -ENOMEM;
- }
-
- return 0;
+ debugfs_create_file("status", S_IRUGO, f2fs_debugfs_root, NULL,
+ &stat_fops);
+#endif
}
void f2fs_destroy_root_stats(void)
{
- if (!f2fs_debugfs_root)
- return;
-
+#ifdef CONFIG_DEBUG_FS
debugfs_remove_recursive(f2fs_debugfs_root);
f2fs_debugfs_root = NULL;
+#endif
}
diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index 2cd85ce..aa36384 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -1,16 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* fs/f2fs/dir.c
*
* Copyright (c) 2012 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
+#include <asm/unaligned.h>
#include <linux/fs.h>
#include <linux/f2fs_fs.h>
#include <linux/sched/signal.h>
+#include <linux/unicode.h>
#include "f2fs.h"
#include "node.h"
#include "acl.h"
@@ -72,6 +71,111 @@ unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de)
return DT_UNKNOWN;
}
+/* If @dir is casefolded, initialize @fname->cf_name from @fname->usr_fname. */
+int f2fs_init_casefolded_name(const struct inode *dir,
+ struct f2fs_filename *fname)
+{
+#ifdef CONFIG_UNICODE
+ struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
+
+ if (IS_CASEFOLDED(dir)) {
+ fname->cf_name.name = f2fs_kmalloc(sbi, F2FS_NAME_LEN,
+ GFP_NOFS);
+ if (!fname->cf_name.name)
+ return -ENOMEM;
+ fname->cf_name.len = utf8_casefold(sbi->sb->s_encoding,
+ fname->usr_fname,
+ fname->cf_name.name,
+ F2FS_NAME_LEN);
+ if ((int)fname->cf_name.len <= 0) {
+ kfree(fname->cf_name.name);
+ fname->cf_name.name = NULL;
+ if (sb_has_enc_strict_mode(dir->i_sb))
+ return -EINVAL;
+ /* fall back to treating name as opaque byte sequence */
+ }
+ }
+#endif
+ return 0;
+}
+
+static int __f2fs_setup_filename(const struct inode *dir,
+ const struct fscrypt_name *crypt_name,
+ struct f2fs_filename *fname)
+{
+ int err;
+
+ memset(fname, 0, sizeof(*fname));
+
+ fname->usr_fname = crypt_name->usr_fname;
+ fname->disk_name = crypt_name->disk_name;
+#ifdef CONFIG_FS_ENCRYPTION
+ fname->crypto_buf = crypt_name->crypto_buf;
+#endif
+ if (crypt_name->is_ciphertext_name) {
+ /* hash was decoded from the no-key name */
+ fname->hash = cpu_to_le32(crypt_name->hash);
+ } else {
+ err = f2fs_init_casefolded_name(dir, fname);
+ if (err) {
+ f2fs_free_filename(fname);
+ return err;
+ }
+ f2fs_hash_filename(dir, fname);
+ }
+ return 0;
+}
+
+/*
+ * Prepare to search for @iname in @dir. This is similar to
+ * fscrypt_setup_filename(), but this also handles computing the casefolded name
+ * and the f2fs dirhash if needed, then packing all the information about this
+ * filename up into a 'struct f2fs_filename'.
+ */
+int f2fs_setup_filename(struct inode *dir, const struct qstr *iname,
+ int lookup, struct f2fs_filename *fname)
+{
+ struct fscrypt_name crypt_name;
+ int err;
+
+ err = fscrypt_setup_filename(dir, iname, lookup, &crypt_name);
+ if (err)
+ return err;
+
+ return __f2fs_setup_filename(dir, &crypt_name, fname);
+}
+
+/*
+ * Prepare to look up @dentry in @dir. This is similar to
+ * fscrypt_prepare_lookup(), but this also handles computing the casefolded name
+ * and the f2fs dirhash if needed, then packing all the information about this
+ * filename up into a 'struct f2fs_filename'.
+ */
+int f2fs_prepare_lookup(struct inode *dir, struct dentry *dentry,
+ struct f2fs_filename *fname)
+{
+ struct fscrypt_name crypt_name;
+ int err;
+
+ err = fscrypt_prepare_lookup(dir, dentry, &crypt_name);
+ if (err)
+ return err;
+
+ return __f2fs_setup_filename(dir, &crypt_name, fname);
+}
+
+void f2fs_free_filename(struct f2fs_filename *fname)
+{
+#ifdef CONFIG_FS_ENCRYPTION
+ kfree(fname->crypto_buf.name);
+ fname->crypto_buf.name = NULL;
+#endif
+#ifdef CONFIG_UNICODE
+ kfree(fname->cf_name.name);
+ fname->cf_name.name = NULL;
+#endif
+}
+
static unsigned long dir_block_index(unsigned int level,
int dir_level, unsigned int idx)
{
@@ -84,9 +188,9 @@ static unsigned long dir_block_index(unsigned int level,
return bidx;
}
-static struct f2fs_dir_entry *find_in_block(struct page *dentry_page,
- struct fscrypt_name *fname,
- f2fs_hash_t namehash,
+static struct f2fs_dir_entry *find_in_block(struct inode *dir,
+ struct page *dentry_page,
+ const struct f2fs_filename *fname,
int *max_slots,
struct page **res_page)
{
@@ -96,17 +200,86 @@ static struct f2fs_dir_entry *find_in_block(struct page *dentry_page,
dentry_blk = (struct f2fs_dentry_block *)page_address(dentry_page);
- make_dentry_ptr_block(NULL, &d, dentry_blk);
- de = f2fs_find_target_dentry(fname, namehash, max_slots, &d);
+ make_dentry_ptr_block(dir, &d, dentry_blk);
+ de = f2fs_find_target_dentry(&d, fname, max_slots);
if (de)
*res_page = dentry_page;
return de;
}
-struct f2fs_dir_entry *f2fs_find_target_dentry(struct fscrypt_name *fname,
- f2fs_hash_t namehash, int *max_slots,
- struct f2fs_dentry_ptr *d)
+#ifdef CONFIG_UNICODE
+/*
+ * Test whether a case-insensitive directory entry matches the filename
+ * being searched for.
+ */
+static bool f2fs_match_ci_name(const struct inode *dir, const struct qstr *name,
+ const u8 *de_name, u32 de_name_len)
+{
+ const struct super_block *sb = dir->i_sb;
+ const struct unicode_map *um = sb->s_encoding;
+ struct fscrypt_str decrypted_name = FSTR_INIT(NULL, de_name_len);
+ struct qstr entry = QSTR_INIT(de_name, de_name_len);
+ int res;
+
+ if (IS_ENCRYPTED(dir)) {
+ const struct fscrypt_str encrypted_name =
+ FSTR_INIT((u8 *)de_name, de_name_len);
+
+ if (WARN_ON_ONCE(!fscrypt_has_encryption_key(dir)))
+ return false;
+
+ decrypted_name.name = kmalloc(de_name_len, GFP_KERNEL);
+ if (!decrypted_name.name)
+ return false;
+ res = fscrypt_fname_disk_to_usr(dir, 0, 0, &encrypted_name,
+ &decrypted_name);
+ if (res < 0)
+ goto out;
+ entry.name = decrypted_name.name;
+ entry.len = decrypted_name.len;
+ }
+
+ res = utf8_strncasecmp_folded(um, name, &entry);
+ if (res < 0) {
+ /*
+ * In strict mode, ignore invalid names. In non-strict mode,
+ * fall back to treating them as opaque byte sequences.
+ */
+ if (sb_has_enc_strict_mode(sb) || name->len != entry.len)
+ res = 1;
+ else
+ res = memcmp(name->name, entry.name, name->len);
+ }
+out:
+ kfree(decrypted_name.name);
+ return res == 0;
+}
+#endif /* CONFIG_UNICODE */
+
+static inline bool f2fs_match_name(const struct inode *dir,
+ const struct f2fs_filename *fname,
+ const u8 *de_name, u32 de_name_len)
+{
+ struct fscrypt_name f;
+
+#ifdef CONFIG_UNICODE
+ if (fname->cf_name.name) {
+ struct qstr cf = FSTR_TO_QSTR(&fname->cf_name);
+
+ return f2fs_match_ci_name(dir, &cf, de_name, de_name_len);
+ }
+#endif
+ f.usr_fname = fname->usr_fname;
+ f.disk_name = fname->disk_name;
+#ifdef CONFIG_FS_ENCRYPTION
+ f.crypto_buf = fname->crypto_buf;
+#endif
+ return fscrypt_match_name(&f, de_name, de_name_len);
+}
+
+struct f2fs_dir_entry *f2fs_find_target_dentry(const struct f2fs_dentry_ptr *d,
+ const struct f2fs_filename *fname, int *max_slots)
{
struct f2fs_dir_entry *de;
unsigned long bit_pos = 0;
@@ -128,9 +301,9 @@ struct f2fs_dir_entry *f2fs_find_target_dentry(struct fscrypt_name *fname,
continue;
}
- if (de->hash_code == namehash &&
- fscrypt_match_name(fname, d->filename[bit_pos],
- le16_to_cpu(de->name_len)))
+ if (de->hash_code == fname->hash &&
+ f2fs_match_name(d->inode, fname, d->filename[bit_pos],
+ le16_to_cpu(de->name_len)))
goto found;
if (max_slots && max_len > *max_slots)
@@ -149,24 +322,22 @@ struct f2fs_dir_entry *f2fs_find_target_dentry(struct fscrypt_name *fname,
static struct f2fs_dir_entry *find_in_level(struct inode *dir,
unsigned int level,
- struct fscrypt_name *fname,
+ const struct f2fs_filename *fname,
struct page **res_page)
{
- struct qstr name = FSTR_TO_QSTR(&fname->disk_name);
- int s = GET_DENTRY_SLOTS(name.len);
+ int s = GET_DENTRY_SLOTS(fname->disk_name.len);
unsigned int nbucket, nblock;
unsigned int bidx, end_block;
struct page *dentry_page;
struct f2fs_dir_entry *de = NULL;
bool room = false;
int max_slots;
- f2fs_hash_t namehash = f2fs_dentry_hash(&name, fname);
nbucket = dir_buckets(level, F2FS_I(dir)->i_dir_level);
nblock = bucket_blocks(level);
bidx = dir_block_index(level, F2FS_I(dir)->i_dir_level,
- le32_to_cpu(namehash) % nbucket);
+ le32_to_cpu(fname->hash) % nbucket);
end_block = bidx + nblock;
for (; bidx < end_block; bidx++) {
@@ -182,8 +353,8 @@ static struct f2fs_dir_entry *find_in_level(struct inode *dir,
}
}
- de = find_in_block(dentry_page, fname, namehash, &max_slots,
- res_page);
+ de = find_in_block(dir, dentry_page, fname, &max_slots,
+ res_page);
if (de)
break;
@@ -192,8 +363,8 @@ static struct f2fs_dir_entry *find_in_level(struct inode *dir,
f2fs_put_page(dentry_page, 0);
}
- if (!de && room && F2FS_I(dir)->chash != namehash) {
- F2FS_I(dir)->chash = namehash;
+ if (!de && room && F2FS_I(dir)->chash != fname->hash) {
+ F2FS_I(dir)->chash = fname->hash;
F2FS_I(dir)->clevel = level;
}
@@ -201,7 +372,8 @@ static struct f2fs_dir_entry *find_in_level(struct inode *dir,
}
struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
- struct fscrypt_name *fname, struct page **res_page)
+ const struct f2fs_filename *fname,
+ struct page **res_page)
{
unsigned long npages = dir_blocks(dir);
struct f2fs_dir_entry *de = NULL;
@@ -220,9 +392,8 @@ struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
max_depth = F2FS_I(dir)->i_current_depth;
if (unlikely(max_depth > MAX_DIR_HASH_DEPTH)) {
- f2fs_msg(F2FS_I_SB(dir)->sb, KERN_WARNING,
- "Corrupted max_depth of %lu: %u",
- dir->i_ino, max_depth);
+ f2fs_warn(F2FS_I_SB(dir), "Corrupted max_depth of %lu: %u",
+ dir->i_ino, max_depth);
max_depth = MAX_DIR_HASH_DEPTH;
f2fs_i_depth_write(dir, max_depth);
}
@@ -249,10 +420,10 @@ struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
const struct qstr *child, struct page **res_page)
{
struct f2fs_dir_entry *de = NULL;
- struct fscrypt_name fname;
+ struct f2fs_filename fname;
int err;
- err = fscrypt_setup_filename(dir, child, 1, &fname);
+ err = f2fs_setup_filename(dir, child, 1, &fname);
if (err) {
if (err == -ENOENT)
*res_page = NULL;
@@ -263,7 +434,7 @@ struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
de = __f2fs_find_entry(dir, &fname, res_page);
- fscrypt_free_filename(&fname);
+ f2fs_free_filename(&fname);
return de;
}
@@ -294,7 +465,7 @@ void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
{
enum page_type type = f2fs_has_inline_dentry(dir) ? NODE : DATA;
lock_page(page);
- f2fs_wait_on_page_writeback(page, type, true);
+ f2fs_wait_on_page_writeback(page, type, true, true);
de->ino = cpu_to_le32(inode->i_ino);
set_de_type(de, inode->i_mode);
set_page_dirty(page);
@@ -304,24 +475,47 @@ void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
f2fs_put_page(page, 1);
}
-static void init_dent_inode(const struct qstr *name, struct page *ipage)
+static void init_dent_inode(struct inode *dir, struct inode *inode,
+ const struct f2fs_filename *fname,
+ struct page *ipage)
{
struct f2fs_inode *ri;
- f2fs_wait_on_page_writeback(ipage, NODE, true);
+ if (!fname) /* tmpfile case? */
+ return;
+
+ f2fs_wait_on_page_writeback(ipage, NODE, true, true);
/* copy name info. to this inode page */
ri = F2FS_INODE(ipage);
- ri->i_namelen = cpu_to_le32(name->len);
- memcpy(ri->i_name, name->name, name->len);
+ ri->i_namelen = cpu_to_le32(fname->disk_name.len);
+ memcpy(ri->i_name, fname->disk_name.name, fname->disk_name.len);
+ if (IS_ENCRYPTED(dir)) {
+ file_set_enc_name(inode);
+ /*
+ * Roll-forward recovery doesn't have encryption keys available,
+ * so it can't compute the dirhash for encrypted+casefolded
+ * filenames. Append it to i_name if possible. Else, disable
+ * roll-forward recovery of the dentry (i.e., make fsync'ing the
+ * file force a checkpoint) by setting LOST_PINO.
+ */
+ if (IS_CASEFOLDED(dir)) {
+ if (fname->disk_name.len + sizeof(f2fs_hash_t) <=
+ F2FS_NAME_LEN)
+ put_unaligned(fname->hash, (f2fs_hash_t *)
+ &ri->i_name[fname->disk_name.len]);
+ else
+ file_lost_pino(inode);
+ }
+ }
set_page_dirty(ipage);
}
void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent,
struct f2fs_dentry_ptr *d)
{
- struct qstr dot = QSTR_INIT(".", 1);
- struct qstr dotdot = QSTR_INIT("..", 2);
+ struct fscrypt_str dot = FSTR_INIT(".", 1);
+ struct fscrypt_str dotdot = FSTR_INIT("..", 2);
/* update dirent of "." */
f2fs_update_dentry(inode->i_ino, inode->i_mode, d, &dot, 0, 0);
@@ -355,11 +549,9 @@ static int make_empty_dir(struct inode *inode,
}
struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir,
- const struct qstr *new_name, const struct qstr *orig_name,
- struct page *dpage)
+ const struct f2fs_filename *fname, struct page *dpage)
{
struct page *page;
- int dummy_encrypt = DUMMY_ENCRYPTION_ENABLED(F2FS_I_SB(dir));
int err;
if (is_inode_flag_set(inode, FI_NEW_INODE)) {
@@ -382,12 +574,12 @@ struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir,
if (err)
goto put_error;
- err = f2fs_init_security(inode, dir, orig_name, page);
+ err = f2fs_init_security(inode, dir,
+ fname ? fname->usr_fname : NULL, page);
if (err)
goto put_error;
- if ((f2fs_encrypted_inode(dir) || dummy_encrypt) &&
- f2fs_may_encrypt(inode)) {
+ if (IS_ENCRYPTED(inode)) {
err = fscrypt_inherit_context(dir, inode, page, false);
if (err)
goto put_error;
@@ -398,11 +590,7 @@ struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir,
return page;
}
- if (new_name) {
- init_dent_inode(new_name, page);
- if (f2fs_encrypted_inode(dir))
- file_set_enc_name(inode);
- }
+ init_dent_inode(dir, inode, fname, page);
/*
* This file should be checkpointed during fsync.
@@ -466,9 +654,23 @@ int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots)
goto next;
}
+bool f2fs_has_enough_room(struct inode *dir, struct page *ipage,
+ const struct f2fs_filename *fname)
+{
+ struct f2fs_dentry_ptr d;
+ unsigned int bit_pos;
+ int slots = GET_DENTRY_SLOTS(fname->disk_name.len);
+
+ make_dentry_ptr_inline(dir, &d, inline_data_addr(dir, ipage));
+
+ bit_pos = f2fs_room_for_filename(d.bitmap, slots, d.max);
+
+ return bit_pos < d.max;
+}
+
void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
- const struct qstr *name, f2fs_hash_t name_hash,
- unsigned int bit_pos)
+ const struct fscrypt_str *name, f2fs_hash_t name_hash,
+ unsigned int bit_pos)
{
struct f2fs_dir_entry *de;
int slots = GET_DENTRY_SLOTS(name->len);
@@ -488,15 +690,13 @@ void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
}
}
-int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name,
- const struct qstr *orig_name,
- struct inode *inode, nid_t ino, umode_t mode)
+int f2fs_add_regular_entry(struct inode *dir, const struct f2fs_filename *fname,
+ struct inode *inode, nid_t ino, umode_t mode)
{
unsigned int bit_pos;
unsigned int level;
unsigned int current_depth;
unsigned long bidx, block;
- f2fs_hash_t dentry_hash;
unsigned int nbucket, nblock;
struct page *dentry_page = NULL;
struct f2fs_dentry_block *dentry_blk = NULL;
@@ -505,18 +705,17 @@ int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name,
int slots, err = 0;
level = 0;
- slots = GET_DENTRY_SLOTS(new_name->len);
- dentry_hash = f2fs_dentry_hash(new_name, NULL);
+ slots = GET_DENTRY_SLOTS(fname->disk_name.len);
current_depth = F2FS_I(dir)->i_current_depth;
- if (F2FS_I(dir)->chash == dentry_hash) {
+ if (F2FS_I(dir)->chash == fname->hash) {
level = F2FS_I(dir)->clevel;
F2FS_I(dir)->chash = 0;
}
start:
if (time_to_inject(F2FS_I_SB(dir), FAULT_DIR_DEPTH)) {
- f2fs_show_injection_info(FAULT_DIR_DEPTH);
+ f2fs_show_injection_info(F2FS_I_SB(dir), FAULT_DIR_DEPTH);
return -ENOSPC;
}
@@ -531,7 +730,7 @@ int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name,
nblock = bucket_blocks(level);
bidx = dir_block_index(level, F2FS_I(dir)->i_dir_level,
- (le32_to_cpu(dentry_hash) % nbucket));
+ (le32_to_cpu(fname->hash) % nbucket));
for (block = bidx; block <= (bidx + nblock - 1); block++) {
dentry_page = f2fs_get_new_data_page(dir, NULL, block, true);
@@ -551,12 +750,11 @@ int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name,
++level;
goto start;
add_dentry:
- f2fs_wait_on_page_writeback(dentry_page, DATA, true);
+ f2fs_wait_on_page_writeback(dentry_page, DATA, true, true);
if (inode) {
down_write(&F2FS_I(inode)->i_sem);
- page = f2fs_init_inode_metadata(inode, dir, new_name,
- orig_name, NULL);
+ page = f2fs_init_inode_metadata(inode, dir, fname, NULL);
if (IS_ERR(page)) {
err = PTR_ERR(page);
goto fail;
@@ -564,7 +762,8 @@ int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name,
}
make_dentry_ptr_block(NULL, &d, dentry_blk);
- f2fs_update_dentry(ino, mode, &d, new_name, dentry_hash, bit_pos);
+ f2fs_update_dentry(ino, mode, &d, &fname->disk_name, fname->hash,
+ bit_pos);
set_page_dirty(dentry_page);
@@ -588,21 +787,15 @@ int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name,
return err;
}
-int f2fs_add_dentry(struct inode *dir, struct fscrypt_name *fname,
- struct inode *inode, nid_t ino, umode_t mode)
+int f2fs_add_dentry(struct inode *dir, const struct f2fs_filename *fname,
+ struct inode *inode, nid_t ino, umode_t mode)
{
- struct qstr new_name;
int err = -EAGAIN;
- new_name.name = fname_name(fname);
- new_name.len = fname_len(fname);
-
if (f2fs_has_inline_dentry(dir))
- err = f2fs_add_inline_entry(dir, &new_name, fname->usr_fname,
- inode, ino, mode);
+ err = f2fs_add_inline_entry(dir, fname, inode, ino, mode);
if (err == -EAGAIN)
- err = f2fs_add_regular_entry(dir, &new_name, fname->usr_fname,
- inode, ino, mode);
+ err = f2fs_add_regular_entry(dir, fname, inode, ino, mode);
f2fs_update_time(F2FS_I_SB(dir), REQ_TIME);
return err;
@@ -615,12 +808,12 @@ int f2fs_add_dentry(struct inode *dir, struct fscrypt_name *fname,
int f2fs_do_add_link(struct inode *dir, const struct qstr *name,
struct inode *inode, nid_t ino, umode_t mode)
{
- struct fscrypt_name fname;
+ struct f2fs_filename fname;
struct page *page = NULL;
struct f2fs_dir_entry *de = NULL;
int err;
- err = fscrypt_setup_filename(dir, name, 0, &fname);
+ err = f2fs_setup_filename(dir, name, 0, &fname);
if (err)
return err;
@@ -643,7 +836,7 @@ int f2fs_do_add_link(struct inode *dir, const struct qstr *name,
} else {
err = f2fs_add_dentry(dir, &fname, inode, ino, mode);
}
- fscrypt_free_filename(&fname);
+ f2fs_free_filename(&fname);
return err;
}
@@ -653,7 +846,7 @@ int f2fs_do_tmpfile(struct inode *inode, struct inode *dir)
int err = 0;
down_write(&F2FS_I(inode)->i_sem);
- page = f2fs_init_inode_metadata(inode, dir, NULL, NULL, NULL);
+ page = f2fs_init_inode_metadata(inode, dir, NULL, NULL);
if (IS_ERR(page)) {
err = PTR_ERR(page);
goto fail;
@@ -661,9 +854,9 @@ int f2fs_do_tmpfile(struct inode *inode, struct inode *dir)
f2fs_put_page(page, 1);
clear_inode_flag(inode, FI_NEW_INODE);
+ f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
fail:
up_write(&F2FS_I(inode)->i_sem);
- f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
return err;
}
@@ -711,7 +904,7 @@ void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
return f2fs_delete_inline_entry(dentry, page, dir, inode);
lock_page(page);
- f2fs_wait_on_page_writeback(page, DATA, true);
+ f2fs_wait_on_page_writeback(page, DATA, true, true);
dentry_blk = page_address(page);
bit_pos = dentry - dentry_blk->dentry;
@@ -724,23 +917,23 @@ void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
0);
set_page_dirty(page);
- dir->i_ctime = dir->i_mtime = current_time(dir);
- f2fs_mark_inode_dirty_sync(dir, false);
-
- if (inode)
- f2fs_drop_nlink(dir, inode);
-
if (bit_pos == NR_DENTRY_IN_BLOCK &&
!f2fs_truncate_hole(dir, page->index, page->index + 1)) {
f2fs_clear_radix_tree_dirty_tag(page);
clear_page_dirty_for_io(page);
- ClearPagePrivate(page);
+ f2fs_clear_page_private(page);
ClearPageUptodate(page);
clear_cold_data(page);
inode_dec_dirty_pages(dir);
f2fs_remove_dirty_inode(dir);
}
f2fs_put_page(page, 1);
+
+ dir->i_ctime = dir->i_mtime = current_time(dir);
+ f2fs_mark_inode_dirty_sync(dir, false);
+
+ if (inode)
+ f2fs_drop_nlink(dir, inode);
}
bool f2fs_empty_dir(struct inode *dir)
@@ -788,10 +981,15 @@ int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
struct f2fs_dir_entry *de = NULL;
struct fscrypt_str de_name = FSTR_INIT(NULL, 0);
struct f2fs_sb_info *sbi = F2FS_I_SB(d->inode);
+ struct blk_plug plug;
+ bool readdir_ra = sbi->readdir_ra == 1;
int err = 0;
bit_pos = ((unsigned long)ctx->pos % d->max);
+ if (readdir_ra)
+ blk_start_plug(&plug);
+
while (bit_pos < d->max) {
bit_pos = find_next_bit_le(d->bitmap, d->max, bit_pos);
if (bit_pos >= d->max)
@@ -801,6 +999,11 @@ int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
if (de->name_len == 0) {
bit_pos++;
ctx->pos = start_pos + bit_pos;
+ printk_ratelimited(
+ "%sF2FS-fs (%s): invalid namelen(0), ino:%u, run fsck to fix.",
+ KERN_WARNING, sbi->sb->s_id,
+ le32_to_cpu(de->ino));
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
continue;
}
@@ -813,37 +1016,40 @@ int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
bit_pos += GET_DENTRY_SLOTS(le16_to_cpu(de->name_len));
if (unlikely(bit_pos > d->max ||
le16_to_cpu(de->name_len) > F2FS_NAME_LEN)) {
- f2fs_msg(sbi->sb, KERN_WARNING,
- "%s: corrupted namelen=%d, run fsck to fix.",
- __func__, le16_to_cpu(de->name_len));
+ f2fs_warn(sbi, "%s: corrupted namelen=%d, run fsck to fix.",
+ __func__, le16_to_cpu(de->name_len));
set_sbi_flag(sbi, SBI_NEED_FSCK);
- err = -EINVAL;
+ err = -EFSCORRUPTED;
goto out;
}
- if (f2fs_encrypted_inode(d->inode)) {
+ if (IS_ENCRYPTED(d->inode)) {
int save_len = fstr->len;
err = fscrypt_fname_disk_to_usr(d->inode,
- (u32)de->hash_code, 0,
- &de_name, fstr);
+ (u32)le32_to_cpu(de->hash_code),
+ 0, &de_name, fstr);
if (err)
- return err;
+ goto out;
de_name = *fstr;
fstr->len = save_len;
}
if (!dir_emit(ctx, de_name.name, de_name.len,
- le32_to_cpu(de->ino), d_type))
- return 1;
+ le32_to_cpu(de->ino), d_type)) {
+ err = 1;
+ goto out;
+ }
- if (sbi->readdir_ra == 1)
+ if (readdir_ra)
f2fs_ra_node_page(sbi, le32_to_cpu(de->ino));
ctx->pos = start_pos + bit_pos;
}
out:
+ if (readdir_ra)
+ blk_finish_plug(&plug);
return err;
}
@@ -860,9 +1066,9 @@ static int f2fs_readdir(struct file *file, struct dir_context *ctx)
struct fscrypt_str fstr = FSTR_INIT(NULL, 0);
int err = 0;
- if (f2fs_encrypted_inode(inode)) {
+ if (IS_ENCRYPTED(inode)) {
err = fscrypt_get_encryption_info(inode);
- if (err && err != -ENOKEY)
+ if (err)
goto out;
err = fscrypt_fname_alloc_buffer(inode, F2FS_NAME_LEN, &fstr);
@@ -889,7 +1095,7 @@ static int f2fs_readdir(struct file *file, struct dir_context *ctx)
page_cache_sync_readahead(inode->i_mapping, ra, file, n,
min(npages - n, (pgoff_t)MAX_DIR_RA_PAGES));
- dentry_page = f2fs_get_lock_data_page(inode, n, false);
+ dentry_page = f2fs_find_data_page(inode, n);
if (IS_ERR(dentry_page)) {
err = PTR_ERR(dentry_page);
if (err == -ENOENT) {
@@ -907,11 +1113,11 @@ static int f2fs_readdir(struct file *file, struct dir_context *ctx)
err = f2fs_fill_dentries(ctx, &d,
n * NR_DENTRY_IN_BLOCK, &fstr);
if (err) {
- f2fs_put_page(dentry_page, 1);
+ f2fs_put_page(dentry_page, 0);
break;
}
- f2fs_put_page(dentry_page, 1);
+ f2fs_put_page(dentry_page, 0);
}
out_free:
fscrypt_fname_free_buffer(&fstr);
@@ -922,7 +1128,7 @@ static int f2fs_readdir(struct file *file, struct dir_context *ctx)
static int f2fs_dir_open(struct inode *inode, struct file *filp)
{
- if (f2fs_encrypted_inode(inode))
+ if (IS_ENCRYPTED(inode))
return fscrypt_get_encryption_info(inode) ? -EACCES : 0;
return 0;
}
diff --git a/fs/f2fs/extent_cache.c b/fs/f2fs/extent_cache.c
index a70cd25..e600784 100644
--- a/fs/f2fs/extent_cache.c
+++ b/fs/f2fs/extent_cache.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* f2fs extent cache support
*
@@ -5,10 +6,6 @@
* Copyright (c) 2015 Samsung Electronics
* Authors: Jaegeuk Kim <jaegeuk@kernel.org>
* Chao Yu <chao2.yu@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/fs.h>
@@ -30,10 +27,10 @@ static struct rb_entry *__lookup_rb_tree_fast(struct rb_entry *cached_re,
return NULL;
}
-static struct rb_entry *__lookup_rb_tree_slow(struct rb_root *root,
+static struct rb_entry *__lookup_rb_tree_slow(struct rb_root_cached *root,
unsigned int ofs)
{
- struct rb_node *node = root->rb_node;
+ struct rb_node *node = root->rb_root.rb_node;
struct rb_entry *re;
while (node) {
@@ -49,7 +46,7 @@ static struct rb_entry *__lookup_rb_tree_slow(struct rb_root *root,
return NULL;
}
-struct rb_entry *f2fs_lookup_rb_tree(struct rb_root *root,
+struct rb_entry *f2fs_lookup_rb_tree(struct rb_root_cached *root,
struct rb_entry *cached_re, unsigned int ofs)
{
struct rb_entry *re;
@@ -62,22 +59,25 @@ struct rb_entry *f2fs_lookup_rb_tree(struct rb_root *root,
}
struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi,
- struct rb_root *root, struct rb_node **parent,
- unsigned int ofs)
+ struct rb_root_cached *root,
+ struct rb_node **parent,
+ unsigned int ofs, bool *leftmost)
{
- struct rb_node **p = &root->rb_node;
+ struct rb_node **p = &root->rb_root.rb_node;
struct rb_entry *re;
while (*p) {
*parent = *p;
re = rb_entry(*parent, struct rb_entry, rb_node);
- if (ofs < re->ofs)
+ if (ofs < re->ofs) {
p = &(*p)->rb_left;
- else if (ofs >= re->ofs + re->len)
+ } else if (ofs >= re->ofs + re->len) {
p = &(*p)->rb_right;
- else
+ *leftmost = false;
+ } else {
f2fs_bug_on(sbi, 1);
+ }
}
return p;
@@ -92,16 +92,16 @@ struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi,
* in order to simpfy the insertion after.
* tree must stay unchanged between lookup and insertion.
*/
-struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root *root,
+struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root_cached *root,
struct rb_entry *cached_re,
unsigned int ofs,
struct rb_entry **prev_entry,
struct rb_entry **next_entry,
struct rb_node ***insert_p,
struct rb_node **insert_parent,
- bool force)
+ bool force, bool *leftmost)
{
- struct rb_node **pnode = &root->rb_node;
+ struct rb_node **pnode = &root->rb_root.rb_node;
struct rb_node *parent = NULL, *tmp_node;
struct rb_entry *re = cached_re;
@@ -110,7 +110,7 @@ struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root *root,
*prev_entry = NULL;
*next_entry = NULL;
- if (RB_EMPTY_ROOT(root))
+ if (RB_EMPTY_ROOT(&root->rb_root))
return NULL;
if (re) {
@@ -118,16 +118,22 @@ struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root *root,
goto lookup_neighbors;
}
+ if (leftmost)
+ *leftmost = true;
+
while (*pnode) {
parent = *pnode;
re = rb_entry(*pnode, struct rb_entry, rb_node);
- if (ofs < re->ofs)
+ if (ofs < re->ofs) {
pnode = &(*pnode)->rb_left;
- else if (ofs >= re->ofs + re->len)
+ } else if (ofs >= re->ofs + re->len) {
pnode = &(*pnode)->rb_right;
- else
+ if (leftmost)
+ *leftmost = false;
+ } else {
goto lookup_neighbors;
+ }
}
*insert_p = pnode;
@@ -160,10 +166,10 @@ struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root *root,
}
bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi,
- struct rb_root *root)
+ struct rb_root_cached *root)
{
#ifdef CONFIG_F2FS_CHECK_FS
- struct rb_node *cur = rb_first(root), *next;
+ struct rb_node *cur = rb_first_cached(root), *next;
struct rb_entry *cur_re, *next_re;
if (!cur)
@@ -178,10 +184,9 @@ bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi,
next_re = rb_entry(next, struct rb_entry, rb_node);
if (cur_re->ofs + cur_re->len > next_re->ofs) {
- f2fs_msg(sbi->sb, KERN_INFO, "inconsistent rbtree, "
- "cur(%u, %u) next(%u, %u)",
- cur_re->ofs, cur_re->len,
- next_re->ofs, next_re->len);
+ f2fs_info(sbi, "inconsistent rbtree, cur(%u, %u) next(%u, %u)",
+ cur_re->ofs, cur_re->len,
+ next_re->ofs, next_re->len);
return false;
}
@@ -196,7 +201,8 @@ static struct kmem_cache *extent_node_slab;
static struct extent_node *__attach_extent_node(struct f2fs_sb_info *sbi,
struct extent_tree *et, struct extent_info *ei,
- struct rb_node *parent, struct rb_node **p)
+ struct rb_node *parent, struct rb_node **p,
+ bool leftmost)
{
struct extent_node *en;
@@ -209,7 +215,7 @@ static struct extent_node *__attach_extent_node(struct f2fs_sb_info *sbi,
en->et = et;
rb_link_node(&en->rb_node, parent, p);
- rb_insert_color(&en->rb_node, &et->root);
+ rb_insert_color_cached(&en->rb_node, &et->root, leftmost);
atomic_inc(&et->node_cnt);
atomic_inc(&sbi->total_ext_node);
return en;
@@ -218,7 +224,7 @@ static struct extent_node *__attach_extent_node(struct f2fs_sb_info *sbi,
static void __detach_extent_node(struct f2fs_sb_info *sbi,
struct extent_tree *et, struct extent_node *en)
{
- rb_erase(&en->rb_node, &et->root);
+ rb_erase_cached(&en->rb_node, &et->root);
atomic_dec(&et->node_cnt);
atomic_dec(&sbi->total_ext_node);
@@ -257,7 +263,7 @@ static struct extent_tree *__grab_extent_tree(struct inode *inode)
f2fs_radix_tree_insert(&sbi->extent_tree_root, ino, et);
memset(et, 0, sizeof(struct extent_tree));
et->ino = ino;
- et->root = RB_ROOT;
+ et->root = RB_ROOT_CACHED;
et->cached_en = NULL;
rwlock_init(&et->lock);
INIT_LIST_HEAD(&et->list);
@@ -278,10 +284,10 @@ static struct extent_tree *__grab_extent_tree(struct inode *inode)
static struct extent_node *__init_extent_tree(struct f2fs_sb_info *sbi,
struct extent_tree *et, struct extent_info *ei)
{
- struct rb_node **p = &et->root.rb_node;
+ struct rb_node **p = &et->root.rb_root.rb_node;
struct extent_node *en;
- en = __attach_extent_node(sbi, et, ei, NULL, p);
+ en = __attach_extent_node(sbi, et, ei, NULL, p, true);
if (!en)
return NULL;
@@ -297,7 +303,7 @@ static unsigned int __free_extent_tree(struct f2fs_sb_info *sbi,
struct extent_node *en;
unsigned int count = atomic_read(&et->node_cnt);
- node = rb_first(&et->root);
+ node = rb_first_cached(&et->root);
while (node) {
next = rb_next(node);
en = rb_entry(node, struct extent_node, rb_node);
@@ -455,7 +461,8 @@ static struct extent_node *__try_merge_extent_node(struct f2fs_sb_info *sbi,
static struct extent_node *__insert_extent_tree(struct f2fs_sb_info *sbi,
struct extent_tree *et, struct extent_info *ei,
struct rb_node **insert_p,
- struct rb_node *insert_parent)
+ struct rb_node *insert_parent,
+ bool leftmost)
{
struct rb_node **p;
struct rb_node *parent = NULL;
@@ -467,9 +474,12 @@ static struct extent_node *__insert_extent_tree(struct f2fs_sb_info *sbi,
goto do_insert;
}
- p = f2fs_lookup_rb_tree_for_insert(sbi, &et->root, &parent, ei->fofs);
+ leftmost = true;
+
+ p = f2fs_lookup_rb_tree_for_insert(sbi, &et->root, &parent,
+ ei->fofs, &leftmost);
do_insert:
- en = __attach_extent_node(sbi, et, ei, parent, p);
+ en = __attach_extent_node(sbi, et, ei, parent, p, leftmost);
if (!en)
return NULL;
@@ -495,6 +505,7 @@ static void f2fs_update_extent_tree_range(struct inode *inode,
unsigned int end = fofs + len;
unsigned int pos = (unsigned int)fofs;
bool updated = false;
+ bool leftmost = false;
if (!et)
return;
@@ -522,7 +533,8 @@ static void f2fs_update_extent_tree_range(struct inode *inode,
(struct rb_entry *)et->cached_en, fofs,
(struct rb_entry **)&prev_en,
(struct rb_entry **)&next_en,
- &insert_p, &insert_parent, false);
+ &insert_p, &insert_parent, false,
+ &leftmost);
if (!en)
en = next_en;
@@ -549,7 +561,7 @@ static void f2fs_update_extent_tree_range(struct inode *inode,
end - dei.fofs + dei.blk,
org_end - end);
en1 = __insert_extent_tree(sbi, et, &ei,
- NULL, NULL);
+ NULL, NULL, true);
next_en = en1;
} else {
en->ei.fofs = end;
@@ -590,7 +602,7 @@ static void f2fs_update_extent_tree_range(struct inode *inode,
set_extent_info(&ei, fofs, blkaddr, len);
if (!__try_merge_extent_node(sbi, et, &ei, prev_en, next_en))
__insert_extent_tree(sbi, et, &ei,
- insert_p, insert_parent);
+ insert_p, insert_parent, leftmost);
/* give up extent_cache, if split and small updates happen */
if (dei.len >= 1 &&
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index aacd8e1..fc3178b 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -1,16 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* fs/f2fs/f2fs.h
*
* Copyright (c) 2012 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#ifndef _LINUX_F2FS_H
#define _LINUX_F2FS_H
+#include <linux/uio.h>
#include <linux/types.h>
#include <linux/page-flags.h>
#include <linux/buffer_head.h>
@@ -26,8 +24,8 @@
#include <linux/quotaops.h>
#include <crypto/hash.h>
-#define __FS_HAS_ENCRYPTION IS_ENABLED(CONFIG_F2FS_FS_ENCRYPTION)
#include <linux/fscrypt.h>
+#include <linux/fsverity.h>
#ifdef CONFIG_F2FS_CHECK_FS
#define f2fs_bug_on(sbi, condition) BUG_ON(condition)
@@ -53,9 +51,10 @@ enum {
FAULT_DIR_DEPTH,
FAULT_EVICT_INODE,
FAULT_TRUNCATE,
- FAULT_IO,
+ FAULT_READ_IO,
FAULT_CHECKPOINT,
FAULT_DISCARD,
+ FAULT_WRITE_IO,
FAULT_MAX,
};
@@ -68,14 +67,13 @@ struct f2fs_fault_info {
unsigned int inject_type;
};
-extern char *f2fs_fault_name[FAULT_MAX];
+extern const char *f2fs_fault_name[FAULT_MAX];
#define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type)))
#endif
/*
* For mount options
*/
-#define F2FS_MOUNT_BG_GC 0x00000001
#define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
#define F2FS_MOUNT_DISCARD 0x00000004
#define F2FS_MOUNT_NOHEAP 0x00000008
@@ -89,17 +87,16 @@ extern char *f2fs_fault_name[FAULT_MAX];
#define F2FS_MOUNT_NOBARRIER 0x00000800
#define F2FS_MOUNT_FASTBOOT 0x00001000
#define F2FS_MOUNT_EXTENT_CACHE 0x00002000
-#define F2FS_MOUNT_FORCE_FG_GC 0x00004000
#define F2FS_MOUNT_DATA_FLUSH 0x00008000
#define F2FS_MOUNT_FAULT_INJECTION 0x00010000
-#define F2FS_MOUNT_ADAPTIVE 0x00020000
-#define F2FS_MOUNT_LFS 0x00040000
#define F2FS_MOUNT_USRQUOTA 0x00080000
#define F2FS_MOUNT_GRPQUOTA 0x00100000
#define F2FS_MOUNT_PRJQUOTA 0x00200000
#define F2FS_MOUNT_QUOTA 0x00400000
#define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00800000
#define F2FS_MOUNT_RESERVE_ROOT 0x01000000
+#define F2FS_MOUNT_DISABLE_CHECKPOINT 0x02000000
+#define F2FS_MOUNT_NORECOVERY 0x04000000
#define F2FS_OPTION(sbi) ((sbi)->mount_opt)
#define clear_opt(sbi, option) (F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option)
@@ -116,6 +113,8 @@ typedef u32 block_t; /*
*/
typedef u32 nid_t;
+#define COMPRESS_EXT_NUM 16
+
struct f2fs_mount_info {
unsigned int opt;
int write_io_size_bits; /* Write IO size bits */
@@ -136,7 +135,22 @@ struct f2fs_mount_info {
int whint_mode;
int alloc_mode; /* segment allocation policy */
int fsync_mode; /* fsync policy */
- bool test_dummy_encryption; /* test dummy encryption */
+ int fs_mode; /* fs mode: LFS or ADAPTIVE */
+ int bggc_mode; /* bggc mode: off, on or sync */
+ struct fscrypt_dummy_context dummy_enc_ctx; /* test dummy encryption */
+#ifdef CONFIG_FS_ENCRYPTION
+ bool inlinecrypt; /* inline encryption enabled */
+#endif
+ block_t unusable_cap_perc; /* percentage for cap */
+ block_t unusable_cap; /* Amount of space allowed to be
+ * unusable when disabling checkpoint
+ */
+
+ /* For compression */
+ unsigned char compress_algorithm; /* algorithm type */
+ unsigned compress_log_size; /* cluster log size */
+ unsigned char compress_ext_cnt; /* extension count */
+ unsigned char extensions[COMPRESS_EXT_NUM][F2FS_EXTENSION_LEN]; /* extensions */
};
#define F2FS_FEATURE_ENCRYPT 0x0001
@@ -149,14 +163,18 @@ struct f2fs_mount_info {
#define F2FS_FEATURE_QUOTA_INO 0x0080
#define F2FS_FEATURE_INODE_CRTIME 0x0100
#define F2FS_FEATURE_LOST_FOUND 0x0200
-#define F2FS_FEATURE_VERITY 0x0400 /* reserved */
+#define F2FS_FEATURE_VERITY 0x0400
+#define F2FS_FEATURE_SB_CHKSUM 0x0800
+#define F2FS_FEATURE_CASEFOLD 0x1000
+#define F2FS_FEATURE_COMPRESSION 0x2000
-#define F2FS_HAS_FEATURE(sb, mask) \
- ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0)
-#define F2FS_SET_FEATURE(sb, mask) \
- (F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask))
-#define F2FS_CLEAR_FEATURE(sb, mask) \
- (F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask))
+#define __F2FS_HAS_FEATURE(raw_super, mask) \
+ ((raw_super->feature & cpu_to_le32(mask)) != 0)
+#define F2FS_HAS_FEATURE(sbi, mask) __F2FS_HAS_FEATURE(sbi->raw_super, mask)
+#define F2FS_SET_FEATURE(sbi, mask) \
+ (sbi->raw_super->feature |= cpu_to_le32(mask))
+#define F2FS_CLEAR_FEATURE(sbi, mask) \
+ (sbi->raw_super->feature &= ~cpu_to_le32(mask))
/*
* Default values for user and/or group using reserved blocks
@@ -178,6 +196,8 @@ enum {
#define CP_RECOVERY 0x00000008
#define CP_DISCARD 0x00000010
#define CP_TRIMMED 0x00000020
+#define CP_PAUSE 0x00000040
+#define CP_RESIZE 0x00000080
#define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi)
#define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */
@@ -187,6 +207,9 @@ enum {
#define DEF_DISCARD_URGENT_UTIL 80 /* do more discard over 80% */
#define DEF_CP_INTERVAL 60 /* 60 secs */
#define DEF_IDLE_INTERVAL 5 /* 5 secs */
+#define DEF_DISABLE_INTERVAL 5 /* 5 secs */
+#define DEF_DISABLE_QUICK_INTERVAL 1 /* 1 secs */
+#define DEF_UMOUNT_DISCARD_TIMEOUT 5 /* 5 secs */
struct cp_control {
int reason;
@@ -203,8 +226,16 @@ enum {
META_NAT,
META_SIT,
META_SSA,
+ META_MAX,
META_POR,
- DATA_GENERIC,
+ DATA_GENERIC, /* check range only */
+ DATA_GENERIC_ENHANCE, /* strong check on range and segment bitmap */
+ DATA_GENERIC_ENHANCE_READ, /*
+ * strong check on range and segment
+ * bitmap but no warning due to race
+ * condition of read on truncated area
+ * by extent_cache
+ */
META_GENERIC,
};
@@ -249,7 +280,7 @@ struct discard_entry {
/* max discard pend list number */
#define MAX_PLIST_NUM 512
#define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
- (MAX_PLIST_NUM - 1) : (blk_num - 1))
+ (MAX_PLIST_NUM - 1) : ((blk_num) - 1))
enum {
D_PREP, /* initial */
@@ -280,7 +311,7 @@ struct discard_cmd {
struct block_device *bdev; /* bdev */
unsigned short ref; /* reference count */
unsigned char state; /* state */
- unsigned char issuing; /* issuing discard */
+ unsigned char queued; /* queued discard */
int error; /* bio error */
spinlock_t lock; /* for state/bio_ref updating */
unsigned short bio_ref; /* bio reference count */
@@ -304,6 +335,7 @@ struct discard_policy {
bool io_aware; /* issue discard in idle time */
bool sync; /* submit discard with REQ_SYNC flag */
bool ordered; /* issue discard by lba order */
+ bool timeout; /* discard timeout for put_super */
unsigned int granularity; /* discard granularity */
};
@@ -322,9 +354,9 @@ struct discard_cmd_control {
unsigned int undiscard_blks; /* # of undiscard blocks */
unsigned int next_pos; /* next discard position */
atomic_t issued_discard; /* # of issued discard */
- atomic_t issing_discard; /* # of issing discard */
+ atomic_t queued_discard; /* # of queued discard */
atomic_t discard_cmd_cnt; /* # of cached cmd count */
- struct rb_root root; /* root of discard rb-tree */
+ struct rb_root_cached root; /* root of discard rb-tree */
bool rbtree_check; /* config for consistence check */
};
@@ -398,6 +430,15 @@ static inline bool __has_cursum_space(struct f2fs_journal *journal,
#define F2FS_IOC_SET_PIN_FILE _IOW(F2FS_IOCTL_MAGIC, 13, __u32)
#define F2FS_IOC_GET_PIN_FILE _IOR(F2FS_IOCTL_MAGIC, 14, __u32)
#define F2FS_IOC_PRECACHE_EXTENTS _IO(F2FS_IOCTL_MAGIC, 15)
+#define F2FS_IOC_RESIZE_FS _IOW(F2FS_IOCTL_MAGIC, 16, __u64)
+#define F2FS_IOC_GET_COMPRESS_BLOCKS _IOR(F2FS_IOCTL_MAGIC, 17, __u64)
+#define F2FS_IOC_RELEASE_COMPRESS_BLOCKS \
+ _IOR(F2FS_IOCTL_MAGIC, 18, __u64)
+#define F2FS_IOC_RESERVE_COMPRESS_BLOCKS \
+ _IOR(F2FS_IOCTL_MAGIC, 19, __u64)
+
+#define F2FS_IOC_GET_VOLUME_NAME FS_IOC_GETFSLABEL
+#define F2FS_IOC_SET_VOLUME_NAME FS_IOC_SETFSLABEL
#define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
#define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
@@ -412,6 +453,7 @@ static inline bool __has_cursum_space(struct f2fs_journal *journal,
#define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
#define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
#define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
+#define F2FS_GOING_DOWN_NEED_FSCK 0x4 /* going down to trigger fsck */
#if defined(__KERNEL__) && defined(CONFIG_COMPAT)
/*
@@ -461,8 +503,8 @@ static inline int get_inline_xattr_addrs(struct inode *inode);
#define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
BITS_PER_BYTE + 1))
-#define INLINE_DENTRY_BITMAP_SIZE(inode) ((NR_INLINE_DENTRY(inode) + \
- BITS_PER_BYTE - 1) / BITS_PER_BYTE)
+#define INLINE_DENTRY_BITMAP_SIZE(inode) \
+ DIV_ROUND_UP(NR_INLINE_DENTRY(inode), BITS_PER_BYTE)
#define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \
((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
NR_INLINE_DENTRY(inode) + \
@@ -472,6 +514,44 @@ static inline int get_inline_xattr_addrs(struct inode *inode);
* For INODE and NODE manager
*/
/* for directory operations */
+
+struct f2fs_filename {
+ /*
+ * The filename the user specified. This is NULL for some
+ * filesystem-internal operations, e.g. converting an inline directory
+ * to a non-inline one, or roll-forward recovering an encrypted dentry.
+ */
+ const struct qstr *usr_fname;
+
+ /*
+ * The on-disk filename. For encrypted directories, this is encrypted.
+ * This may be NULL for lookups in an encrypted dir without the key.
+ */
+ struct fscrypt_str disk_name;
+
+ /* The dirhash of this filename */
+ f2fs_hash_t hash;
+
+#ifdef CONFIG_FS_ENCRYPTION
+ /*
+ * For lookups in encrypted directories: either the buffer backing
+ * disk_name, or a buffer that holds the decoded no-key name.
+ */
+ struct fscrypt_str crypto_buf;
+#endif
+#ifdef CONFIG_UNICODE
+ /*
+ * For casefolded directories: the casefolded name, but it's left NULL
+ * if the original name is not valid Unicode, if the directory is both
+ * casefolded and encrypted and its encryption key is unavailable, or if
+ * the filesystem is doing an internal operation where usr_fname is also
+ * NULL. In all these cases we fall back to treating the name as an
+ * opaque byte sequence.
+ */
+ struct fscrypt_str cf_name;
+#endif
+};
+
struct f2fs_dentry_ptr {
struct inode *inode;
void *bitmap;
@@ -526,6 +606,12 @@ enum {
#define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO count */
+/* congestion wait timeout value, default: 20ms */
+#define DEFAULT_IO_TIMEOUT (msecs_to_jiffies(20))
+
+/* maximum retry quota flush count */
+#define DEFAULT_RETRY_QUOTA_FLUSH_COUNT 8
+
#define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
#define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
@@ -549,23 +635,15 @@ struct extent_info {
};
struct extent_node {
- struct rb_node rb_node;
- union {
- struct {
- unsigned int fofs;
- unsigned int len;
- u32 blk;
- };
- struct extent_info ei; /* extent info */
-
- };
+ struct rb_node rb_node; /* rb node located in rb-tree */
+ struct extent_info ei; /* extent info */
struct list_head list; /* node in global extent list of sbi */
struct extent_tree *et; /* extent tree pointer */
};
struct extent_tree {
nid_t ino; /* inode number */
- struct rb_root root; /* root of extent info rb-tree */
+ struct rb_root_cached root; /* root of extent info rb-tree */
struct extent_node *cached_en; /* recently accessed extent node */
struct extent_info largest; /* largested extent info */
struct list_head list; /* to be used by sbi->zombie_list */
@@ -593,6 +671,7 @@ struct f2fs_map_blocks {
pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
pgoff_t *m_next_extent; /* point to next possible extent */
int m_seg_type;
+ bool m_may_create; /* indicate it is from write path */
};
/* for flag in get_data_block */
@@ -615,7 +694,7 @@ enum {
#define FADVISE_ENC_NAME_BIT 0x08
#define FADVISE_KEEP_SIZE_BIT 0x10
#define FADVISE_HOT_BIT 0x20
-#define FADVISE_VERITY_BIT 0x40 /* reserved */
+#define FADVISE_VERITY_BIT 0x40
#define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT)
@@ -635,6 +714,8 @@ enum {
#define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT)
#define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT)
#define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT)
+#define file_is_verity(inode) is_file(inode, FADVISE_VERITY_BIT)
+#define file_set_verity(inode) set_file(inode, FADVISE_VERITY_BIT)
#define DEF_DIR_LEVEL 0
@@ -644,6 +725,44 @@ enum {
MAX_GC_FAILURE
};
+/* used for f2fs_inode_info->flags */
+enum {
+ FI_NEW_INODE, /* indicate newly allocated inode */
+ FI_DIRTY_INODE, /* indicate inode is dirty or not */
+ FI_AUTO_RECOVER, /* indicate inode is recoverable */
+ FI_DIRTY_DIR, /* indicate directory has dirty pages */
+ FI_INC_LINK, /* need to increment i_nlink */
+ FI_ACL_MODE, /* indicate acl mode */
+ FI_NO_ALLOC, /* should not allocate any blocks */
+ FI_FREE_NID, /* free allocated nide */
+ FI_NO_EXTENT, /* not to use the extent cache */
+ FI_INLINE_XATTR, /* used for inline xattr */
+ FI_INLINE_DATA, /* used for inline data*/
+ FI_INLINE_DENTRY, /* used for inline dentry */
+ FI_APPEND_WRITE, /* inode has appended data */
+ FI_UPDATE_WRITE, /* inode has in-place-update data */
+ FI_NEED_IPU, /* used for ipu per file */
+ FI_ATOMIC_FILE, /* indicate atomic file */
+ FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */
+ FI_VOLATILE_FILE, /* indicate volatile file */
+ FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
+ FI_DROP_CACHE, /* drop dirty page cache */
+ FI_DATA_EXIST, /* indicate data exists */
+ FI_INLINE_DOTS, /* indicate inline dot dentries */
+ FI_DO_DEFRAG, /* indicate defragment is running */
+ FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
+ FI_NO_PREALLOC, /* indicate skipped preallocated blocks */
+ FI_HOT_DATA, /* indicate file is hot */
+ FI_EXTRA_ATTR, /* indicate file has extra attribute */
+ FI_PROJ_INHERIT, /* indicate file inherits projectid */
+ FI_PIN_FILE, /* indicate file should not be gced */
+ FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */
+ FI_VERITY_IN_PROGRESS, /* building fs-verity Merkle tree */
+ FI_COMPRESSED_FILE, /* indicate file's data can be compressed */
+ FI_MMAP_FILE, /* indicate file was mmapped */
+ FI_MAX, /* max flag, never be used */
+};
+
struct f2fs_inode_info {
struct inode vfs_inode; /* serve a vfs inode */
unsigned long i_flags; /* keep an inode flags for ioctl */
@@ -656,7 +775,7 @@ struct f2fs_inode_info {
umode_t i_acl_mode; /* keep file acl mode temporarily */
/* Use below internally in f2fs*/
- unsigned long flags; /* use to pass per-file flags */
+ unsigned long flags[BITS_TO_LONGS(FI_MAX)]; /* use to pass per-file flags */
struct rw_semaphore i_sem; /* protect fi info */
atomic_t dirty_pages; /* # of dirty pages */
f2fs_hash_t chash; /* hash value of given file name */
@@ -665,6 +784,7 @@ struct f2fs_inode_info {
struct task_struct *cp_task; /* separate cp/wb IO stats*/
nid_t i_xattr_nid; /* node id that contains xattrs */
loff_t last_disk_size; /* lastly written file size */
+ spinlock_t i_size_lock; /* protect last_disk_size */
#ifdef CONFIG_QUOTA
struct dquot *i_dquot[MAXQUOTAS];
@@ -690,6 +810,12 @@ struct f2fs_inode_info {
int i_inline_xattr_size; /* inline xattr size */
struct timespec64 i_crtime; /* inode creation time */
struct timespec64 i_disk_time[4];/* inode disk times */
+
+ /* for file compress */
+ u64 i_compr_blocks; /* # of compressed blocks */
+ unsigned char i_compress_algorithm; /* algorithm type */
+ unsigned char i_log_cluster_size; /* log of cluster size */
+ unsigned int i_cluster_size; /* cluster size */
};
static inline void get_extent_info(struct extent_info *ext,
@@ -868,6 +994,7 @@ enum {
CURSEG_WARM_NODE, /* direct node blocks of normal files */
CURSEG_COLD_NODE, /* indirect node blocks */
NO_CHECK_TYPE,
+ CURSEG_COLD_DATA_PINNED,/* cold data for pinned file */
};
struct flush_cmd {
@@ -881,7 +1008,7 @@ struct flush_cmd_control {
struct task_struct *f2fs_issue_flush; /* flush thread */
wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
atomic_t issued_flush; /* # of issued flushes */
- atomic_t issing_flush; /* # of issing flushes */
+ atomic_t queued_flush; /* # of queued flushes */
struct llist_head issue_list; /* list for command issue */
struct llist_node *dispatch_list; /* list for command dispatch */
};
@@ -945,6 +1072,11 @@ enum count_type {
F2FS_DIRTY_IMETA,
F2FS_WB_CP_DATA,
F2FS_WB_DATA,
+ F2FS_RD_DATA,
+ F2FS_RD_NODE,
+ F2FS_RD_META,
+ F2FS_DIO_WRITE,
+ F2FS_DIO_READ,
NR_COUNT_TYPE,
};
@@ -990,6 +1122,7 @@ enum need_lock_type {
enum cp_reason_type {
CP_NO_NEEDED,
CP_NON_REGULAR,
+ CP_COMPRESSED,
CP_HARDLINK,
CP_SB_NEED_CP,
CP_WRONG_PINO,
@@ -1001,8 +1134,9 @@ enum cp_reason_type {
};
enum iostat_type {
- APP_DIRECT_IO, /* app direct IOs */
- APP_BUFFERED_IO, /* app buffered IOs */
+ /* WRITE IO */
+ APP_DIRECT_IO, /* app direct write IOs */
+ APP_BUFFERED_IO, /* app buffered write IOs */
APP_WRITE_IO, /* app write IOs */
APP_MAPPED_IO, /* app mapped IOs */
FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */
@@ -1013,6 +1147,19 @@ enum iostat_type {
FS_CP_DATA_IO, /* data IOs from checkpoint */
FS_CP_NODE_IO, /* node IOs from checkpoint */
FS_CP_META_IO, /* meta IOs from checkpoint */
+
+ /* READ IO */
+ APP_DIRECT_READ_IO, /* app direct read IOs */
+ APP_BUFFERED_READ_IO, /* app buffered read IOs */
+ APP_READ_IO, /* app read IOs */
+ APP_MAPPED_READ_IO, /* app mapped read IOs */
+ FS_DATA_READ_IO, /* data read IOs */
+ FS_GDATA_READ_IO, /* data read IOs from background gc */
+ FS_CDATA_READ_IO, /* compressed data read IOs */
+ FS_NODE_READ_IO, /* node read IOs */
+ FS_META_READ_IO, /* meta read IOs */
+
+ /* other */
FS_DISCARD, /* discard */
NR_IO_TYPE,
};
@@ -1028,17 +1175,27 @@ struct f2fs_io_info {
block_t old_blkaddr; /* old block address before Cow */
struct page *page; /* page to be written */
struct page *encrypted_page; /* encrypted page */
+ struct page *compressed_page; /* compressed page */
struct list_head list; /* serialize IOs */
bool submitted; /* indicate IO submission */
int need_lock; /* indicate we need to lock cp_rwsem */
bool in_list; /* indicate fio is in io_list */
- bool is_meta; /* indicate borrow meta inode mapping or not */
+ bool is_por; /* indicate IO is from recovery or not */
bool retry; /* need to reallocate block address */
+ int compr_blocks; /* # of compressed block addresses */
+ bool encrypted; /* indicate file is encrypted */
enum iostat_type io_type; /* io type */
struct writeback_control *io_wbc; /* writeback control */
+ struct bio **bio; /* bio for ipu */
+ sector_t *last_block; /* last block number in bio */
unsigned char version; /* version of the node */
};
+struct bio_entry {
+ struct bio *bio;
+ struct list_head list;
+};
+
#define is_read_io(rw) ((rw) == READ)
struct f2fs_bio_info {
struct f2fs_sb_info *sbi; /* f2fs superblock */
@@ -1048,6 +1205,8 @@ struct f2fs_bio_info {
struct rw_semaphore io_rwsem; /* blocking op for bio */
spinlock_t io_lock; /* serialize DATA/NODE IOs */
struct list_head io_list; /* track fios */
+ struct list_head bio_list; /* bio entry list head */
+ struct rw_semaphore bio_list_lock; /* lock to protect bio entry list */
};
#define FDEV(i) (sbi->devs[i])
@@ -1059,8 +1218,8 @@ struct f2fs_dev_info {
block_t start_blk;
block_t end_blk;
#ifdef CONFIG_BLK_DEV_ZONED
- unsigned int nr_blkz; /* Total number of zones */
- u8 *blkz_type; /* Array of zones type */
+ unsigned int nr_blkz; /* Total number of zones */
+ unsigned long *blkz_seq; /* Bitmap indicating sequential zones */
#endif
};
@@ -1090,11 +1249,21 @@ enum {
SBI_NEED_CP, /* need to checkpoint */
SBI_IS_SHUTDOWN, /* shutdown by ioctl */
SBI_IS_RECOVERED, /* recovered orphan/data */
+ SBI_CP_DISABLED, /* CP was disabled last mount */
+ SBI_CP_DISABLED_QUICK, /* CP was disabled quickly */
+ SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */
+ SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */
+ SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */
+ SBI_IS_RESIZEFS, /* resizefs is in process */
};
enum {
CP_TIME,
REQ_TIME,
+ DISCARD_TIME,
+ GC_TIME,
+ DISABLE_TIME,
+ UMOUNT_DISCARD_TIMEOUT,
MAX_TIME,
};
@@ -1106,6 +1275,20 @@ enum {
};
enum {
+ BGGC_MODE_ON, /* background gc is on */
+ BGGC_MODE_OFF, /* background gc is off */
+ BGGC_MODE_SYNC, /*
+ * background gc is on, migrating blocks
+ * like foreground gc
+ */
+};
+
+enum {
+ FS_MODE_ADAPTIVE, /* use both lfs/ssr allocation */
+ FS_MODE_LFS, /* use lfs allocation only */
+};
+
+enum {
WHINT_MODE_OFF, /* not pass down write hints */
WHINT_MODE_USER, /* try to pass down hints given by users */
WHINT_MODE_FS, /* pass down hints with F2FS policy */
@@ -1122,13 +1305,98 @@ enum fsync_mode {
FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */
};
-#ifdef CONFIG_F2FS_FS_ENCRYPTION
+/*
+ * this value is set in page as a private data which indicate that
+ * the page is atomically written, and it is in inmem_pages list.
+ */
+#define ATOMIC_WRITTEN_PAGE ((unsigned long)-1)
+#define DUMMY_WRITTEN_PAGE ((unsigned long)-2)
+
+#define IS_ATOMIC_WRITTEN_PAGE(page) \
+ (page_private(page) == (unsigned long)ATOMIC_WRITTEN_PAGE)
+#define IS_DUMMY_WRITTEN_PAGE(page) \
+ (page_private(page) == (unsigned long)DUMMY_WRITTEN_PAGE)
+
+#ifdef CONFIG_FS_ENCRYPTION
#define DUMMY_ENCRYPTION_ENABLED(sbi) \
- (unlikely(F2FS_OPTION(sbi).test_dummy_encryption))
+ (unlikely(F2FS_OPTION(sbi).dummy_enc_ctx.ctx != NULL))
#else
#define DUMMY_ENCRYPTION_ENABLED(sbi) (0)
#endif
+/* For compression */
+enum compress_algorithm_type {
+ COMPRESS_LZO,
+ COMPRESS_LZ4,
+ COMPRESS_ZSTD,
+ COMPRESS_MAX,
+};
+
+#define COMPRESS_DATA_RESERVED_SIZE 5
+struct compress_data {
+ __le32 clen; /* compressed data size */
+ __le32 reserved[COMPRESS_DATA_RESERVED_SIZE]; /* reserved */
+ u8 cdata[]; /* compressed data */
+};
+
+#define COMPRESS_HEADER_SIZE (sizeof(struct compress_data))
+
+#define F2FS_COMPRESSED_PAGE_MAGIC 0xF5F2C000
+
+/* compress context */
+struct compress_ctx {
+ struct inode *inode; /* inode the context belong to */
+ pgoff_t cluster_idx; /* cluster index number */
+ unsigned int cluster_size; /* page count in cluster */
+ unsigned int log_cluster_size; /* log of cluster size */
+ struct page **rpages; /* pages store raw data in cluster */
+ unsigned int nr_rpages; /* total page number in rpages */
+ struct page **cpages; /* pages store compressed data in cluster */
+ unsigned int nr_cpages; /* total page number in cpages */
+ void *rbuf; /* virtual mapped address on rpages */
+ struct compress_data *cbuf; /* virtual mapped address on cpages */
+ size_t rlen; /* valid data length in rbuf */
+ size_t clen; /* valid data length in cbuf */
+ void *private; /* payload buffer for specified compression algorithm */
+ void *private2; /* extra payload buffer */
+};
+
+/* compress context for write IO path */
+struct compress_io_ctx {
+ u32 magic; /* magic number to indicate page is compressed */
+ struct inode *inode; /* inode the context belong to */
+ struct page **rpages; /* pages store raw data in cluster */
+ unsigned int nr_rpages; /* total page number in rpages */
+ refcount_t ref; /* referrence count of raw page */
+};
+
+/* decompress io context for read IO path */
+struct decompress_io_ctx {
+ u32 magic; /* magic number to indicate page is compressed */
+ struct inode *inode; /* inode the context belong to */
+ pgoff_t cluster_idx; /* cluster index number */
+ unsigned int cluster_size; /* page count in cluster */
+ unsigned int log_cluster_size; /* log of cluster size */
+ struct page **rpages; /* pages store raw data in cluster */
+ unsigned int nr_rpages; /* total page number in rpages */
+ struct page **cpages; /* pages store compressed data in cluster */
+ unsigned int nr_cpages; /* total page number in cpages */
+ struct page **tpages; /* temp pages to pad holes in cluster */
+ void *rbuf; /* virtual mapped address on rpages */
+ struct compress_data *cbuf; /* virtual mapped address on cpages */
+ size_t rlen; /* valid data length in rbuf */
+ size_t clen; /* valid data length in cbuf */
+ refcount_t ref; /* referrence count of compressed page */
+ bool failed; /* indicate IO error during decompression */
+ void *private; /* payload buffer for specified decompression algorithm */
+ void *private2; /* extra payload buffer */
+};
+
+#define NULL_CLUSTER ((unsigned int)(~0))
+#define MIN_COMPRESS_LOG_SIZE 2
+#define MAX_COMPRESS_LOG_SIZE 8
+#define MAX_COMPRESS_WINDOW_SIZE ((PAGE_SIZE) << MAX_COMPRESS_LOG_SIZE)
+
struct f2fs_sb_info {
struct super_block *sb; /* pointer to VFS super block */
struct proc_dir_entry *s_proc; /* proc entry */
@@ -1152,8 +1420,6 @@ struct f2fs_sb_info {
/* for bio operations */
struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */
- struct mutex wio_mutex[NR_PAGE_TYPE - 1][NR_TEMP_TYPE];
- /* bio ordering for NODE/DATA */
/* keep migration IO order for LFS mode */
struct rw_semaphore io_order_lock;
mempool_t *write_io_dummy; /* Dummy pages */
@@ -1184,6 +1450,7 @@ struct f2fs_sb_info {
/* for inode management */
struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
+ struct mutex flush_lock; /* for flush exclusion */
/* for extent tree cache */
struct radix_tree_root extent_tree_root;/* cache extent cache entries */
@@ -1211,7 +1478,6 @@ struct f2fs_sb_info {
unsigned int total_valid_node_count; /* valid node block count */
loff_t max_file_blocks; /* max block index of file */
int dir_level; /* directory level */
- unsigned int trigger_ssr_threshold; /* threshold to trigger ssr */
int readdir_ra; /* readahead inode in readdir */
block_t user_block_count; /* # of user blocks */
@@ -1221,9 +1487,11 @@ struct f2fs_sb_info {
block_t reserved_blocks; /* configurable reserved blocks */
block_t current_reserved_blocks; /* current reserved blocks */
- unsigned int nquota_files; /* # of quota sysfile */
+ /* Additional tracking for no checkpoint mode */
+ block_t unusable_block_count; /* # of blocks saved by last cp */
- u32 s_next_generation; /* for NFS support */
+ unsigned int nquota_files; /* # of quota sysfile */
+ struct rw_semaphore quota_sem; /* blocking cp for flags */
/* # of pages, see count_type */
atomic_t nr_pages[NR_COUNT_TYPE];
@@ -1239,19 +1507,27 @@ struct f2fs_sb_info {
struct f2fs_mount_info mount_opt; /* mount options */
/* for cleaning operations */
- struct mutex gc_mutex; /* mutex for GC */
+ struct rw_semaphore gc_lock; /*
+ * semaphore for GC, avoid
+ * race between GC and GC or CP
+ */
struct f2fs_gc_kthread *gc_thread; /* GC thread */
unsigned int cur_victim_sec; /* current victim section num */
unsigned int gc_mode; /* current GC state */
+ unsigned int next_victim_seg[2]; /* next segment in victim section */
/* for skip statistic */
+ unsigned int atomic_files; /* # of opened atomic file */
unsigned long long skipped_atomic_files[2]; /* FG_GC and BG_GC */
unsigned long long skipped_gc_rwsem; /* FG_GC only */
/* threshold for gc trials on pinned files */
u64 gc_pin_file_threshold;
+ struct rw_semaphore pin_sem;
/* maximum # of trials to find a victim segment for SSR and GC */
unsigned int max_victim_search;
+ /* migration granularity of garbage collection, unit: segment */
+ unsigned int migration_granularity;
/*
* for stat information.
@@ -1259,6 +1535,7 @@ struct f2fs_sb_info {
*/
#ifdef CONFIG_F2FS_STAT_FS
struct f2fs_stat_info *stat_info; /* FS status information */
+ atomic_t meta_count[META_MAX]; /* # of meta blocks */
unsigned int segment_count[2]; /* # of allocated segments */
unsigned int block_count[2]; /* # of allocated blocks */
atomic_t inplace_count; /* # of inplace update */
@@ -1269,19 +1546,28 @@ struct f2fs_sb_info {
atomic_t inline_xattr; /* # of inline_xattr inodes */
atomic_t inline_inode; /* # of inline_data inodes */
atomic_t inline_dir; /* # of inline_dentry inodes */
- atomic_t aw_cnt; /* # of atomic writes */
+ atomic_t compr_inode; /* # of compressed inodes */
+ atomic_t compr_blocks; /* # of compressed blocks */
atomic_t vw_cnt; /* # of volatile writes */
atomic_t max_aw_cnt; /* max # of atomic writes */
atomic_t max_vw_cnt; /* max # of volatile writes */
- int bg_gc; /* background gc calls */
+ unsigned int io_skip_bggc; /* skip background gc for in-flight IO */
+ unsigned int other_skip_bggc; /* skip background gc for other reasons */
unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
#endif
spinlock_t stat_lock; /* lock for stat operations */
/* For app/fs IO statistics */
spinlock_t iostat_lock;
- unsigned long long write_iostat[NR_IO_TYPE];
+ unsigned long long rw_iostat[NR_IO_TYPE];
+ unsigned long long prev_rw_iostat[NR_IO_TYPE];
bool iostat_enable;
+ unsigned long iostat_next_period;
+ unsigned int iostat_period_ms;
+
+ /* to attach REQ_META|REQ_FUA flags */
+ unsigned int data_io_flag;
+ unsigned int node_io_flag;
/* For sysfs suppport */
struct kobject s_kobj;
@@ -1305,12 +1591,25 @@ struct f2fs_sb_info {
/* Precomputed FS UUID checksum for seeding other checksums */
__u32 s_chksum_seed;
+
+ struct workqueue_struct *post_read_wq; /* post read workqueue */
+
+ struct kmem_cache *inline_xattr_slab; /* inline xattr entry */
+ unsigned int inline_xattr_slab_size; /* default inline xattr slab size */
+};
+
+struct f2fs_private_dio {
+ struct inode *inode;
+ void *orig_private;
+ bio_end_io_t *orig_end_io;
+ bool write;
};
#ifdef CONFIG_F2FS_FAULT_INJECTION
-#define f2fs_show_injection_info(type) \
- printk("%sF2FS-fs : inject %s in %s of %pF\n", \
- KERN_INFO, f2fs_fault_name[type], \
+#define f2fs_show_injection_info(sbi, type) \
+ printk_ratelimited("%sF2FS-fs (%s) : inject %s in %s of %pS\n", \
+ KERN_INFO, sbi->sb->s_id, \
+ f2fs_fault_name[type], \
__func__, __builtin_return_address(0))
static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
{
@@ -1330,7 +1629,7 @@ static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
return false;
}
#else
-#define f2fs_show_injection_info(type) do { } while (0)
+#define f2fs_show_injection_info(sbi, type) do { } while (0)
static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
{
return false;
@@ -1357,7 +1656,15 @@ static inline bool f2fs_is_multi_device(struct f2fs_sb_info *sbi)
static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
{
- sbi->last_time[type] = jiffies;
+ unsigned long now = jiffies;
+
+ sbi->last_time[type] = now;
+
+ /* DISCARD_TIME and GC_TIME are based on REQ_TIME */
+ if (type == REQ_TIME) {
+ sbi->last_time[DISCARD_TIME] = now;
+ sbi->last_time[GC_TIME] = now;
+ }
}
static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
@@ -1367,16 +1674,18 @@ static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
return time_after(jiffies, sbi->last_time[type] + interval);
}
-static inline bool is_idle(struct f2fs_sb_info *sbi)
+static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi,
+ int type)
{
- struct block_device *bdev = sbi->sb->s_bdev;
- struct request_queue *q = bdev_get_queue(bdev);
- struct request_list *rl = &q->root_rl;
+ unsigned long interval = sbi->interval_time[type] * HZ;
+ unsigned int wait_ms = 0;
+ long delta;
- if (rl->count[BLK_RW_SYNC] || rl->count[BLK_RW_ASYNC])
- return false;
+ delta = (sbi->last_time[type] + interval) - jiffies;
+ if (delta > 0)
+ wait_ms = jiffies_to_msecs(delta);
- return f2fs_time_over(sbi, REQ_TIME);
+ return wait_ms;
}
/*
@@ -1443,7 +1752,7 @@ static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
{
- return F2FS_M_SB(page->mapping);
+ return F2FS_M_SB(page_file_mapping(page));
}
static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
@@ -1585,16 +1894,23 @@ static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock)
{
unsigned long flags;
+ unsigned char *nat_bits;
- set_sbi_flag(sbi, SBI_NEED_FSCK);
+ /*
+ * In order to re-enable nat_bits we need to call fsck.f2fs by
+ * set_sbi_flag(sbi, SBI_NEED_FSCK). But it may give huge cost,
+ * so let's rely on regular fsck or unclean shutdown.
+ */
if (lock)
spin_lock_irqsave(&sbi->cp_lock, flags);
__clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG);
- kfree(NM_I(sbi)->nat_bits);
+ nat_bits = NM_I(sbi)->nat_bits;
NM_I(sbi)->nat_bits = NULL;
if (lock)
spin_unlock_irqrestore(&sbi->cp_lock, flags);
+
+ kvfree(nat_bits);
}
static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi,
@@ -1699,7 +2015,7 @@ static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
return ret;
if (time_to_inject(sbi, FAULT_BLOCK)) {
- f2fs_show_injection_info(FAULT_BLOCK);
+ f2fs_show_injection_info(sbi, FAULT_BLOCK);
release = *count;
goto release_quota;
}
@@ -1717,7 +2033,12 @@ static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
if (!__allow_reserved_blocks(sbi, inode, true))
avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks;
-
+ if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
+ if (avail_user_block_count > sbi->unusable_block_count)
+ avail_user_block_count -= sbi->unusable_block_count;
+ else
+ avail_user_block_count = 0;
+ }
if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) {
diff = sbi->total_valid_block_count - avail_user_block_count;
if (diff > *count)
@@ -1746,7 +2067,20 @@ static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
return -ENOSPC;
}
-void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...);
+__printf(2, 3)
+void f2fs_printk(struct f2fs_sb_info *sbi, const char *fmt, ...);
+
+#define f2fs_err(sbi, fmt, ...) \
+ f2fs_printk(sbi, KERN_ERR fmt, ##__VA_ARGS__)
+#define f2fs_warn(sbi, fmt, ...) \
+ f2fs_printk(sbi, KERN_WARNING fmt, ##__VA_ARGS__)
+#define f2fs_notice(sbi, fmt, ...) \
+ f2fs_printk(sbi, KERN_NOTICE fmt, ##__VA_ARGS__)
+#define f2fs_info(sbi, fmt, ...) \
+ f2fs_printk(sbi, KERN_INFO fmt, ##__VA_ARGS__)
+#define f2fs_debug(sbi, fmt, ...) \
+ f2fs_printk(sbi, KERN_DEBUG fmt, ##__VA_ARGS__)
+
static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
struct inode *inode,
block_t count)
@@ -1762,11 +2096,10 @@ static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
sbi->current_reserved_blocks + count);
spin_unlock(&sbi->stat_lock);
if (unlikely(inode->i_blocks < sectors)) {
- f2fs_msg(sbi->sb, KERN_WARNING,
- "Inconsistent i_blocks, ino:%lu, iblocks:%llu, sectors:%llu",
- inode->i_ino,
- (unsigned long long)inode->i_blocks,
- (unsigned long long)sectors);
+ f2fs_warn(sbi, "Inconsistent i_blocks, ino:%lu, iblocks:%llu, sectors:%llu",
+ inode->i_ino,
+ (unsigned long long)inode->i_blocks,
+ (unsigned long long)sectors);
set_sbi_flag(sbi, SBI_NEED_FSCK);
return;
}
@@ -1777,11 +2110,12 @@ static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
{
atomic_inc(&sbi->nr_pages[count_type]);
- if (count_type == F2FS_DIRTY_DATA || count_type == F2FS_INMEM_PAGES ||
- count_type == F2FS_WB_CP_DATA || count_type == F2FS_WB_DATA)
- return;
-
- set_sbi_flag(sbi, SBI_IS_DIRTY);
+ if (count_type == F2FS_DIRTY_DENTS ||
+ count_type == F2FS_DIRTY_NODES ||
+ count_type == F2FS_DIRTY_META ||
+ count_type == F2FS_DIRTY_QDATA ||
+ count_type == F2FS_DIRTY_IMETA)
+ set_sbi_flag(sbi, SBI_IS_DIRTY);
}
static inline void inode_inc_dirty_pages(struct inode *inode)
@@ -1866,7 +2200,11 @@ static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) {
offset = (flag == SIT_BITMAP) ?
le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0;
- return &ckpt->sit_nat_version_bitmap + offset;
+ /*
+ * if large_nat_bitmap feature is enabled, leave checksum
+ * protection for all nat/sit bitmaps.
+ */
+ return &ckpt->sit_nat_version_bitmap + offset + sizeof(__le32);
}
if (__cp_payload(sbi) > 0) {
@@ -1913,17 +2251,23 @@ static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
struct inode *inode, bool is_inode)
{
block_t valid_block_count;
- unsigned int valid_node_count;
- bool quota = inode && !is_inode;
+ unsigned int valid_node_count, user_block_count;
+ int err;
- if (quota) {
- int ret = dquot_reserve_block(inode, 1);
- if (ret)
- return ret;
+ if (is_inode) {
+ if (inode) {
+ err = dquot_alloc_inode(inode);
+ if (err)
+ return err;
+ }
+ } else {
+ err = dquot_reserve_block(inode, 1);
+ if (err)
+ return err;
}
if (time_to_inject(sbi, FAULT_BLOCK)) {
- f2fs_show_injection_info(FAULT_BLOCK);
+ f2fs_show_injection_info(sbi, FAULT_BLOCK);
goto enospc;
}
@@ -1934,8 +2278,11 @@ static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
if (!__allow_reserved_blocks(sbi, inode, false))
valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks;
+ user_block_count = sbi->user_block_count;
+ if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
+ user_block_count -= sbi->unusable_block_count;
- if (unlikely(valid_block_count > sbi->user_block_count)) {
+ if (unlikely(valid_block_count > user_block_count)) {
spin_unlock(&sbi->stat_lock);
goto enospc;
}
@@ -1961,8 +2308,12 @@ static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
return 0;
enospc:
- if (quota)
+ if (is_inode) {
+ if (inode)
+ dquot_free_inode(inode);
+ } else {
dquot_release_reservation_block(inode, 1);
+ }
return -ENOSPC;
}
@@ -1973,7 +2324,6 @@ static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
f2fs_bug_on(sbi, !sbi->total_valid_block_count);
f2fs_bug_on(sbi, !sbi->total_valid_node_count);
- f2fs_bug_on(sbi, !is_inode && !inode->i_blocks);
sbi->total_valid_node_count--;
sbi->total_valid_block_count--;
@@ -1983,8 +2333,18 @@ static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
spin_unlock(&sbi->stat_lock);
- if (!is_inode)
+ if (is_inode) {
+ dquot_free_inode(inode);
+ } else {
+ if (unlikely(inode->i_blocks == 0)) {
+ f2fs_warn(sbi, "dec_valid_node_count: inconsistent i_blocks, ino:%lu, iblocks:%llu",
+ inode->i_ino,
+ (unsigned long long)inode->i_blocks);
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
+ return;
+ }
f2fs_i_blocks_write(inode, 1, false, true);
+ }
}
static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
@@ -2022,7 +2382,8 @@ static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
return page;
if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) {
- f2fs_show_injection_info(FAULT_PAGE_ALLOC);
+ f2fs_show_injection_info(F2FS_M_SB(mapping),
+ FAULT_PAGE_ALLOC);
return NULL;
}
}
@@ -2037,7 +2398,7 @@ static inline struct page *f2fs_pagecache_get_page(
int fgp_flags, gfp_t gfp_mask)
{
if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) {
- f2fs_show_injection_info(FAULT_PAGE_GET);
+ f2fs_show_injection_info(F2FS_M_SB(mapping), FAULT_PAGE_GET);
return NULL;
}
@@ -2093,24 +2454,27 @@ static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
return entry;
}
-static inline struct bio *f2fs_bio_alloc(struct f2fs_sb_info *sbi,
- int npages, bool no_fail)
+static inline bool is_idle(struct f2fs_sb_info *sbi, int type)
{
- struct bio *bio;
+ if (sbi->gc_mode == GC_URGENT)
+ return true;
- if (no_fail) {
- /* No failure on bio allocation */
- bio = bio_alloc(GFP_NOIO, npages);
- if (!bio)
- bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages);
- return bio;
- }
- if (time_to_inject(sbi, FAULT_ALLOC_BIO)) {
- f2fs_show_injection_info(FAULT_ALLOC_BIO);
- return NULL;
- }
+ if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) ||
+ get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) ||
+ get_pages(sbi, F2FS_WB_CP_DATA) ||
+ get_pages(sbi, F2FS_DIO_READ) ||
+ get_pages(sbi, F2FS_DIO_WRITE))
+ return false;
- return bio_alloc(GFP_KERNEL, npages);
+ if (type != DISCARD_TIME && SM_I(sbi) && SM_I(sbi)->dcc_info &&
+ atomic_read(&SM_I(sbi)->dcc_info->queued_discard))
+ return false;
+
+ if (SM_I(sbi) && SM_I(sbi)->fcc_info &&
+ atomic_read(&SM_I(sbi)->fcc_info->queued_flush))
+ return false;
+
+ return f2fs_time_over(sbi, type);
}
static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
@@ -2141,7 +2505,7 @@ static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
}
static inline int f2fs_has_extra_attr(struct inode *inode);
-static inline block_t datablock_addr(struct inode *inode,
+static inline block_t data_blkaddr(struct inode *inode,
struct page *node_page, unsigned int offset)
{
struct f2fs_node *raw_node;
@@ -2151,9 +2515,9 @@ static inline block_t datablock_addr(struct inode *inode,
raw_node = F2FS_NODE(node_page);
- /* from GC path only */
if (is_inode) {
if (!inode)
+ /* from GC path only */
base = offset_in_addr(&raw_node->i);
else if (f2fs_has_extra_attr(inode))
base = get_extra_isize(inode);
@@ -2163,6 +2527,11 @@ static inline block_t datablock_addr(struct inode *inode,
return le32_to_cpu(addr_array[base + offset]);
}
+static inline block_t f2fs_data_blkaddr(struct dnode_of_data *dn)
+{
+ return data_blkaddr(dn->inode, dn->node_page, dn->ofs_in_node);
+}
+
static inline int f2fs_test_bit(unsigned int nr, char *addr)
{
int mask;
@@ -2224,56 +2593,28 @@ static inline void f2fs_change_bit(unsigned int nr, char *addr)
}
/*
- * Inode flags
+ * On-disk inode flags (f2fs_inode::i_flags)
*/
-#define F2FS_SECRM_FL 0x00000001 /* Secure deletion */
-#define F2FS_UNRM_FL 0x00000002 /* Undelete */
#define F2FS_COMPR_FL 0x00000004 /* Compress file */
#define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */
#define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */
#define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */
#define F2FS_NODUMP_FL 0x00000040 /* do not dump file */
#define F2FS_NOATIME_FL 0x00000080 /* do not update atime */
-/* Reserved for compression usage... */
-#define F2FS_DIRTY_FL 0x00000100
-#define F2FS_COMPRBLK_FL 0x00000200 /* One or more compressed clusters */
-#define F2FS_NOCOMPR_FL 0x00000400 /* Don't compress */
-#define F2FS_ENCRYPT_FL 0x00000800 /* encrypted file */
-/* End compression flags --- maybe not all used */
+#define F2FS_NOCOMP_FL 0x00000400 /* Don't compress */
#define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */
-#define F2FS_IMAGIC_FL 0x00002000 /* AFS directory */
-#define F2FS_JOURNAL_DATA_FL 0x00004000 /* file data should be journaled */
-#define F2FS_NOTAIL_FL 0x00008000 /* file tail should not be merged */
#define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
-#define F2FS_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/
-#define F2FS_HUGE_FILE_FL 0x00040000 /* Set to each huge file */
-#define F2FS_EXTENTS_FL 0x00080000 /* Inode uses extents */
-#define F2FS_EA_INODE_FL 0x00200000 /* Inode used for large EA */
-#define F2FS_EOFBLOCKS_FL 0x00400000 /* Blocks allocated beyond EOF */
-#define F2FS_INLINE_DATA_FL 0x10000000 /* Inode has inline data. */
#define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
-#define F2FS_RESERVED_FL 0x80000000 /* reserved for ext4 lib */
-
-#define F2FS_FL_USER_VISIBLE 0x304BDFFF /* User visible flags */
-#define F2FS_FL_USER_MODIFIABLE 0x204BC0FF /* User modifiable flags */
-
-/* Flags we can manipulate with through F2FS_IOC_FSSETXATTR */
-#define F2FS_FL_XFLAG_VISIBLE (F2FS_SYNC_FL | \
- F2FS_IMMUTABLE_FL | \
- F2FS_APPEND_FL | \
- F2FS_NODUMP_FL | \
- F2FS_NOATIME_FL | \
- F2FS_PROJINHERIT_FL)
+#define F2FS_CASEFOLD_FL 0x40000000 /* Casefolded file */
/* Flags that should be inherited by new inodes from their parent. */
-#define F2FS_FL_INHERITED (F2FS_SECRM_FL | F2FS_UNRM_FL | F2FS_COMPR_FL |\
- F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL |\
- F2FS_NOCOMPR_FL | F2FS_JOURNAL_DATA_FL |\
- F2FS_NOTAIL_FL | F2FS_DIRSYNC_FL |\
- F2FS_PROJINHERIT_FL)
+#define F2FS_FL_INHERITED (F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL | \
+ F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
+ F2FS_CASEFOLD_FL | F2FS_COMPR_FL | F2FS_NOCOMP_FL)
/* Flags that are appropriate for regular files (all but dir-specific ones). */
-#define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_TOPDIR_FL))
+#define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
+ F2FS_CASEFOLD_FL))
/* Flags that are appropriate for non-directories/regular files. */
#define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL)
@@ -2288,40 +2629,6 @@ static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
return flags & F2FS_OTHER_FLMASK;
}
-/* used for f2fs_inode_info->flags */
-enum {
- FI_NEW_INODE, /* indicate newly allocated inode */
- FI_DIRTY_INODE, /* indicate inode is dirty or not */
- FI_AUTO_RECOVER, /* indicate inode is recoverable */
- FI_DIRTY_DIR, /* indicate directory has dirty pages */
- FI_INC_LINK, /* need to increment i_nlink */
- FI_ACL_MODE, /* indicate acl mode */
- FI_NO_ALLOC, /* should not allocate any blocks */
- FI_FREE_NID, /* free allocated nide */
- FI_NO_EXTENT, /* not to use the extent cache */
- FI_INLINE_XATTR, /* used for inline xattr */
- FI_INLINE_DATA, /* used for inline data*/
- FI_INLINE_DENTRY, /* used for inline dentry */
- FI_APPEND_WRITE, /* inode has appended data */
- FI_UPDATE_WRITE, /* inode has in-place-update data */
- FI_NEED_IPU, /* used for ipu per file */
- FI_ATOMIC_FILE, /* indicate atomic file */
- FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */
- FI_VOLATILE_FILE, /* indicate volatile file */
- FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
- FI_DROP_CACHE, /* drop dirty page cache */
- FI_DATA_EXIST, /* indicate data exists */
- FI_INLINE_DOTS, /* indicate inline dot dentries */
- FI_DO_DEFRAG, /* indicate defragment is running */
- FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
- FI_NO_PREALLOC, /* indicate skipped preallocated blocks */
- FI_HOT_DATA, /* indicate file is hot */
- FI_EXTRA_ATTR, /* indicate file has extra attribute */
- FI_PROJ_INHERIT, /* indicate file inherits projectid */
- FI_PIN_FILE, /* indicate file should not be gced */
- FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */
-};
-
static inline void __mark_inode_dirty_flag(struct inode *inode,
int flag, bool set)
{
@@ -2332,6 +2639,7 @@ static inline void __mark_inode_dirty_flag(struct inode *inode,
case FI_NEW_INODE:
if (set)
return;
+ /* fall through */
case FI_DATA_EXIST:
case FI_INLINE_DOTS:
case FI_PIN_FILE:
@@ -2341,23 +2649,27 @@ static inline void __mark_inode_dirty_flag(struct inode *inode,
static inline void set_inode_flag(struct inode *inode, int flag)
{
- if (!test_bit(flag, &F2FS_I(inode)->flags))
- set_bit(flag, &F2FS_I(inode)->flags);
+ test_and_set_bit(flag, F2FS_I(inode)->flags);
__mark_inode_dirty_flag(inode, flag, true);
}
static inline int is_inode_flag_set(struct inode *inode, int flag)
{
- return test_bit(flag, &F2FS_I(inode)->flags);
+ return test_bit(flag, F2FS_I(inode)->flags);
}
static inline void clear_inode_flag(struct inode *inode, int flag)
{
- if (test_bit(flag, &F2FS_I(inode)->flags))
- clear_bit(flag, &F2FS_I(inode)->flags);
+ test_and_clear_bit(flag, F2FS_I(inode)->flags);
__mark_inode_dirty_flag(inode, flag, false);
}
+static inline bool f2fs_verity_in_progress(struct inode *inode)
+{
+ return IS_ENABLED(CONFIG_FS_VERITY) &&
+ is_inode_flag_set(inode, FI_VERITY_IN_PROGRESS);
+}
+
static inline void set_acl_inode(struct inode *inode, umode_t mode)
{
F2FS_I(inode)->i_acl_mode = mode;
@@ -2439,19 +2751,19 @@ static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
struct f2fs_inode_info *fi = F2FS_I(inode);
if (ri->i_inline & F2FS_INLINE_XATTR)
- set_bit(FI_INLINE_XATTR, &fi->flags);
+ set_bit(FI_INLINE_XATTR, fi->flags);
if (ri->i_inline & F2FS_INLINE_DATA)
- set_bit(FI_INLINE_DATA, &fi->flags);
+ set_bit(FI_INLINE_DATA, fi->flags);
if (ri->i_inline & F2FS_INLINE_DENTRY)
- set_bit(FI_INLINE_DENTRY, &fi->flags);
+ set_bit(FI_INLINE_DENTRY, fi->flags);
if (ri->i_inline & F2FS_DATA_EXIST)
- set_bit(FI_DATA_EXIST, &fi->flags);
+ set_bit(FI_DATA_EXIST, fi->flags);
if (ri->i_inline & F2FS_INLINE_DOTS)
- set_bit(FI_INLINE_DOTS, &fi->flags);
+ set_bit(FI_INLINE_DOTS, fi->flags);
if (ri->i_inline & F2FS_EXTRA_ATTR)
- set_bit(FI_EXTRA_ATTR, &fi->flags);
+ set_bit(FI_EXTRA_ATTR, fi->flags);
if (ri->i_inline & F2FS_PIN_FILE)
- set_bit(FI_PIN_FILE, &fi->flags);
+ set_bit(FI_PIN_FILE, fi->flags);
}
static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
@@ -2484,9 +2796,27 @@ static inline int f2fs_has_inline_xattr(struct inode *inode)
return is_inode_flag_set(inode, FI_INLINE_XATTR);
}
+static inline int f2fs_compressed_file(struct inode *inode)
+{
+ return S_ISREG(inode->i_mode) &&
+ is_inode_flag_set(inode, FI_COMPRESSED_FILE);
+}
+
static inline unsigned int addrs_per_inode(struct inode *inode)
{
- return CUR_ADDRS_PER_INODE(inode) - get_inline_xattr_addrs(inode);
+ unsigned int addrs = CUR_ADDRS_PER_INODE(inode) -
+ get_inline_xattr_addrs(inode);
+
+ if (!f2fs_compressed_file(inode))
+ return addrs;
+ return ALIGN_DOWN(addrs, F2FS_I(inode)->i_cluster_size);
+}
+
+static inline unsigned int addrs_per_block(struct inode *inode)
+{
+ if (!f2fs_compressed_file(inode))
+ return DEF_ADDRS_PER_BLOCK;
+ return ALIGN_DOWN(DEF_ADDRS_PER_BLOCK, F2FS_I(inode)->i_cluster_size);
}
static inline void *inline_xattr_addr(struct inode *inode, struct page *page)
@@ -2519,6 +2849,11 @@ static inline int f2fs_has_inline_dots(struct inode *inode)
return is_inode_flag_set(inode, FI_INLINE_DOTS);
}
+static inline int f2fs_is_mmap_file(struct inode *inode)
+{
+ return is_inode_flag_set(inode, FI_MMAP_FILE);
+}
+
static inline bool f2fs_is_pinned_file(struct inode *inode)
{
return is_inode_flag_set(inode, FI_PIN_FILE);
@@ -2613,9 +2948,9 @@ static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
if (!f2fs_is_time_consistent(inode))
return false;
- down_read(&F2FS_I(inode)->i_sem);
+ spin_lock(&F2FS_I(inode)->i_size_lock);
ret = F2FS_I(inode)->last_disk_size == i_size_read(inode);
- up_read(&F2FS_I(inode)->i_sem);
+ spin_unlock(&F2FS_I(inode)->i_size_lock);
return ret;
}
@@ -2630,12 +2965,12 @@ static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
}
-static inline bool is_dot_dotdot(const struct qstr *str)
+static inline bool is_dot_dotdot(const u8 *name, size_t len)
{
- if (str->len == 1 && str->name[0] == '.')
+ if (len == 1 && name[0] == '.')
return true;
- if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.')
+ if (len == 2 && name[0] == '.' && name[1] == '.')
return true;
return false;
@@ -2646,7 +2981,8 @@ static inline bool f2fs_may_extent_tree(struct inode *inode)
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
if (!test_opt(sbi, EXTENT_CACHE) ||
- is_inode_flag_set(inode, FI_NO_EXTENT))
+ is_inode_flag_set(inode, FI_NO_EXTENT) ||
+ is_inode_flag_set(inode, FI_COMPRESSED_FILE))
return false;
/*
@@ -2663,7 +2999,7 @@ static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
size_t size, gfp_t flags)
{
if (time_to_inject(sbi, FAULT_KMALLOC)) {
- f2fs_show_injection_info(FAULT_KMALLOC);
+ f2fs_show_injection_info(sbi, FAULT_KMALLOC);
return NULL;
}
@@ -2680,7 +3016,7 @@ static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi,
size_t size, gfp_t flags)
{
if (time_to_inject(sbi, FAULT_KVMALLOC)) {
- f2fs_show_injection_info(FAULT_KVMALLOC);
+ f2fs_show_injection_info(sbi, FAULT_KVMALLOC);
return NULL;
}
@@ -2713,37 +3049,54 @@ static inline int get_inline_xattr_addrs(struct inode *inode)
#define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
#define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
- ((offsetof(typeof(*f2fs_inode), field) + \
+ ((offsetof(typeof(*(f2fs_inode)), field) + \
sizeof((f2fs_inode)->field)) \
- <= (F2FS_OLD_ATTRIBUTE_SIZE + extra_isize)) \
+ <= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize))) \
+
+#define DEFAULT_IOSTAT_PERIOD_MS 3000
+#define MIN_IOSTAT_PERIOD_MS 100
+/* maximum period of iostat tracing is 1 day */
+#define MAX_IOSTAT_PERIOD_MS 8640000
static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi)
{
int i;
spin_lock(&sbi->iostat_lock);
- for (i = 0; i < NR_IO_TYPE; i++)
- sbi->write_iostat[i] = 0;
+ for (i = 0; i < NR_IO_TYPE; i++) {
+ sbi->rw_iostat[i] = 0;
+ sbi->prev_rw_iostat[i] = 0;
+ }
spin_unlock(&sbi->iostat_lock);
}
+extern void f2fs_record_iostat(struct f2fs_sb_info *sbi);
+
static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi,
enum iostat_type type, unsigned long long io_bytes)
{
if (!sbi->iostat_enable)
return;
spin_lock(&sbi->iostat_lock);
- sbi->write_iostat[type] += io_bytes;
+ sbi->rw_iostat[type] += io_bytes;
if (type == APP_WRITE_IO || type == APP_DIRECT_IO)
- sbi->write_iostat[APP_BUFFERED_IO] =
- sbi->write_iostat[APP_WRITE_IO] -
- sbi->write_iostat[APP_DIRECT_IO];
+ sbi->rw_iostat[APP_BUFFERED_IO] =
+ sbi->rw_iostat[APP_WRITE_IO] -
+ sbi->rw_iostat[APP_DIRECT_IO];
+
+ if (type == APP_READ_IO || type == APP_DIRECT_READ_IO)
+ sbi->rw_iostat[APP_BUFFERED_READ_IO] =
+ sbi->rw_iostat[APP_READ_IO] -
+ sbi->rw_iostat[APP_DIRECT_READ_IO];
spin_unlock(&sbi->iostat_lock);
+
+ f2fs_record_iostat(sbi);
}
-#define __is_meta_io(fio) (PAGE_TYPE_OF_BIO(fio->type) == META && \
- (!is_read_io(fio->op) || fio->is_meta))
+#define __is_large_section(sbi) ((sbi)->segs_per_sec > 1)
+
+#define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META)
bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
block_t blkaddr, int type);
@@ -2751,27 +3104,39 @@ static inline void verify_blkaddr(struct f2fs_sb_info *sbi,
block_t blkaddr, int type)
{
if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) {
- f2fs_msg(sbi->sb, KERN_ERR,
- "invalid blkaddr: %u, type: %d, run fsck to fix.",
- blkaddr, type);
+ f2fs_err(sbi, "invalid blkaddr: %u, type: %d, run fsck to fix.",
+ blkaddr, type);
f2fs_bug_on(sbi, 1);
}
}
static inline bool __is_valid_data_blkaddr(block_t blkaddr)
{
- if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR)
+ if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR ||
+ blkaddr == COMPRESS_ADDR)
return false;
return true;
}
-static inline bool is_valid_data_blkaddr(struct f2fs_sb_info *sbi,
- block_t blkaddr)
+static inline void f2fs_set_page_private(struct page *page,
+ unsigned long data)
{
- if (!__is_valid_data_blkaddr(blkaddr))
- return false;
- verify_blkaddr(sbi, blkaddr, DATA_GENERIC);
- return true;
+ if (PagePrivate(page))
+ return;
+
+ get_page(page);
+ SetPagePrivate(page);
+ set_page_private(page, data);
+}
+
+static inline void f2fs_clear_page_private(struct page *page)
+{
+ if (!PagePrivate(page))
+ return;
+
+ set_page_private(page, 0);
+ ClearPagePrivate(page);
+ f2fs_put_page(page, 0);
}
/*
@@ -2779,6 +3144,7 @@ static inline bool is_valid_data_blkaddr(struct f2fs_sb_info *sbi,
*/
int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
void f2fs_truncate_data_blocks(struct dnode_of_data *dn);
+int f2fs_do_truncate_blocks(struct inode *inode, u64 from, bool lock);
int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock);
int f2fs_truncate(struct inode *inode);
int f2fs_getattr(const struct path *path, struct kstat *stat,
@@ -2789,6 +3155,7 @@ void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count);
int f2fs_precache_extents(struct inode *inode);
long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
+int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid);
int f2fs_pin_file_control(struct inode *inode, bool inc);
/*
@@ -2817,22 +3184,28 @@ struct dentry *f2fs_get_parent(struct dentry *child);
* dir.c
*/
unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de);
-struct f2fs_dir_entry *f2fs_find_target_dentry(struct fscrypt_name *fname,
- f2fs_hash_t namehash, int *max_slots,
- struct f2fs_dentry_ptr *d);
+int f2fs_init_casefolded_name(const struct inode *dir,
+ struct f2fs_filename *fname);
+int f2fs_setup_filename(struct inode *dir, const struct qstr *iname,
+ int lookup, struct f2fs_filename *fname);
+int f2fs_prepare_lookup(struct inode *dir, struct dentry *dentry,
+ struct f2fs_filename *fname);
+void f2fs_free_filename(struct f2fs_filename *fname);
+struct f2fs_dir_entry *f2fs_find_target_dentry(const struct f2fs_dentry_ptr *d,
+ const struct f2fs_filename *fname, int *max_slots);
int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
unsigned int start_pos, struct fscrypt_str *fstr);
void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent,
struct f2fs_dentry_ptr *d);
struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir,
- const struct qstr *new_name,
- const struct qstr *orig_name, struct page *dpage);
+ const struct f2fs_filename *fname, struct page *dpage);
void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode,
unsigned int current_depth);
int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots);
void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
- struct fscrypt_name *fname, struct page **res_page);
+ const struct f2fs_filename *fname,
+ struct page **res_page);
struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
const struct qstr *child, struct page **res_page);
struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
@@ -2840,13 +3213,14 @@ ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
struct page **page);
void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
struct page *page, struct inode *inode);
+bool f2fs_has_enough_room(struct inode *dir, struct page *ipage,
+ const struct f2fs_filename *fname);
void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
- const struct qstr *name, f2fs_hash_t name_hash,
+ const struct fscrypt_str *name, f2fs_hash_t name_hash,
unsigned int bit_pos);
-int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name,
- const struct qstr *orig_name,
+int f2fs_add_regular_entry(struct inode *dir, const struct f2fs_filename *fname,
struct inode *inode, nid_t ino, umode_t mode);
-int f2fs_add_dentry(struct inode *dir, struct fscrypt_name *fname,
+int f2fs_add_dentry(struct inode *dir, const struct f2fs_filename *fname,
struct inode *inode, nid_t ino, umode_t mode);
int f2fs_do_add_link(struct inode *dir, const struct qstr *name,
struct inode *inode, nid_t ino, umode_t mode);
@@ -2869,18 +3243,16 @@ static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
int f2fs_inode_dirtied(struct inode *inode, bool sync);
void f2fs_inode_synced(struct inode *inode);
int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly);
+int f2fs_quota_sync(struct super_block *sb, int type);
void f2fs_quota_off_umount(struct super_block *sb);
int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
int f2fs_sync_fs(struct super_block *sb, int sync);
-extern __printf(3, 4)
-void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...);
int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi);
/*
* hash.c
*/
-f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info,
- struct fscrypt_name *fname);
+void f2fs_hash_filename(const struct inode *dir, struct f2fs_filename *fname);
/*
* node.c
@@ -2911,7 +3283,8 @@ struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs);
void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
struct page *f2fs_get_node_page_ra(struct page *parent, int start);
-void f2fs_move_node_page(struct page *node_page, int gc_type);
+int f2fs_move_node_page(struct page *node_page, int gc_type);
+int f2fs_flush_inline_data(struct f2fs_sb_info *sbi);
int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
struct writeback_control *wbc, bool atomic,
unsigned int *seq_id);
@@ -2928,7 +3301,7 @@ int f2fs_recover_xattr_data(struct inode *inode, struct page *page);
int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
int f2fs_restore_node_summary(struct f2fs_sb_info *sbi,
unsigned int segno, struct f2fs_summary_block *sum);
-void f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
+int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
int f2fs_build_node_manager(struct f2fs_sb_info *sbi);
void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi);
int __init f2fs_create_node_manager_caches(void);
@@ -2944,7 +3317,7 @@ void f2fs_drop_inmem_pages(struct inode *inode);
void f2fs_drop_inmem_page(struct inode *inode, struct page *page);
int f2fs_commit_inmem_pages(struct inode *inode);
void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
-void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi);
+void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi, bool from_bg);
int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino);
int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi);
int f2fs_flush_device_cache(struct f2fs_sb_info *sbi);
@@ -2953,12 +3326,17 @@ void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi);
void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi);
-bool f2fs_wait_discard_bios(struct f2fs_sb_info *sbi);
+bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi);
void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi,
struct cp_control *cpc);
+void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi);
+block_t f2fs_get_unusable_blocks(struct f2fs_sb_info *sbi);
+int f2fs_disable_cp_again(struct f2fs_sb_info *sbi, block_t unusable);
void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi);
int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
-void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi);
+void allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
+ unsigned int start, unsigned int end);
+void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi, int type);
int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi,
struct cp_control *cpc);
@@ -2983,8 +3361,10 @@ void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
struct f2fs_summary *sum, int type,
struct f2fs_io_info *fio, bool add_list);
void f2fs_wait_on_page_writeback(struct page *page,
- enum page_type type, bool ordered);
+ enum page_type type, bool ordered, bool locked);
void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr);
+void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr,
+ block_t len);
void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
@@ -3031,7 +3411,7 @@ int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi);
void f2fs_update_dirty_page(struct inode *inode, struct page *page);
void f2fs_remove_dirty_inode(struct inode *inode);
int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type);
-void f2fs_wait_on_all_pages_writeback(struct f2fs_sb_info *sbi);
+void f2fs_wait_on_all_pages(struct f2fs_sb_info *sbi, int type);
int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi);
int __init f2fs_create_checkpoint_caches(void);
@@ -3040,14 +3420,22 @@ void f2fs_destroy_checkpoint_caches(void);
/*
* data.c
*/
-int f2fs_init_post_read_processing(void);
-void f2fs_destroy_post_read_processing(void);
+int __init f2fs_init_bioset(void);
+void f2fs_destroy_bioset(void);
+struct bio *f2fs_bio_alloc(struct f2fs_sb_info *sbi, int npages, bool noio);
+int f2fs_init_bio_entry_cache(void);
+void f2fs_destroy_bio_entry_cache(void);
+void f2fs_submit_bio(struct f2fs_sb_info *sbi,
+ struct bio *bio, enum page_type type);
void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type);
void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi,
- struct inode *inode, nid_t ino, pgoff_t idx,
- enum page_type type);
+ struct inode *inode, struct page *page,
+ nid_t ino, enum page_type type);
+void f2fs_submit_merged_ipu_write(struct f2fs_sb_info *sbi,
+ struct bio **bio, struct page *page);
void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi);
int f2fs_submit_page_bio(struct f2fs_io_info *fio);
+int f2fs_merge_page_bio(struct f2fs_io_info *fio);
void f2fs_submit_page_write(struct f2fs_io_info *fio);
struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
block_t blk_addr, struct bio *bio);
@@ -3059,6 +3447,9 @@ int f2fs_reserve_new_block(struct dnode_of_data *dn);
int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index);
int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from);
int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
+int f2fs_mpage_readpages(struct address_space *mapping,
+ struct list_head *pages, struct page *page,
+ unsigned nr_pages, bool is_readahead);
struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
int op_flags, bool for_write);
struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index);
@@ -3067,12 +3458,19 @@ struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index,
struct page *f2fs_get_new_data_page(struct inode *inode,
struct page *ipage, pgoff_t index, bool new_i_size);
int f2fs_do_write_data_page(struct f2fs_io_info *fio);
+void __do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock);
int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
int create, int flag);
int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
u64 start, u64 len);
+int f2fs_encrypt_one_page(struct f2fs_io_info *fio);
bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio);
bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio);
+int f2fs_write_single_data_page(struct page *page, int *submitted,
+ struct bio **bio, sector_t *last_block,
+ struct writeback_control *wbc,
+ enum iostat_type io_type,
+ int compr_blocks);
void f2fs_invalidate_page(struct page *page, unsigned int offset,
unsigned int length);
int f2fs_release_page(struct page *page, gfp_t wait);
@@ -3082,6 +3480,10 @@ int f2fs_migrate_page(struct address_space *mapping, struct page *newpage,
#endif
bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len);
void f2fs_clear_radix_tree_dirty_tag(struct page *page);
+int f2fs_init_post_read_processing(void);
+void f2fs_destroy_post_read_processing(void);
+int f2fs_init_post_read_wq(struct f2fs_sb_info *sbi);
+void f2fs_destroy_post_read_wq(struct f2fs_sb_info *sbi);
/*
* gc.c
@@ -3092,6 +3494,7 @@ block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode);
int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background,
unsigned int segno);
void f2fs_build_gc_manager(struct f2fs_sb_info *sbi);
+int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count);
/*
* recovery.c
@@ -3119,11 +3522,15 @@ struct f2fs_stat_info {
int free_nids, avail_nids, alloc_nids;
int total_count, utilization;
int bg_gc, nr_wb_cp_data, nr_wb_data;
+ int nr_rd_data, nr_rd_node, nr_rd_meta;
+ int nr_dio_read, nr_dio_write;
+ unsigned int io_skip_bggc, other_skip_bggc;
int nr_flushing, nr_flushed, flush_list_empty;
int nr_discarding, nr_discarded;
int nr_discard_cmd;
unsigned int undiscard_blks;
int inline_xattr, inline_inode, inline_dir, append, update, orphans;
+ int compr_inode, compr_blocks;
int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt;
unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
unsigned int bimodal, avg_vblocks;
@@ -3140,6 +3547,7 @@ struct f2fs_stat_info {
int cursec[NR_CURSEG_TYPE];
int curzone[NR_CURSEG_TYPE];
+ unsigned int meta_count[META_MAX];
unsigned int segment_count[2];
unsigned int block_count[2];
unsigned int inplace_count;
@@ -3154,7 +3562,9 @@ static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
#define stat_inc_cp_count(si) ((si)->cp_count++)
#define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
#define stat_inc_call_count(si) ((si)->call_count++)
-#define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
+#define stat_inc_bggc_count(si) ((si)->bg_gc++)
+#define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++)
+#define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++)
#define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
#define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
#define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
@@ -3191,19 +3601,40 @@ static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
if (f2fs_has_inline_dentry(inode)) \
(atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
} while (0)
+#define stat_inc_compr_inode(inode) \
+ do { \
+ if (f2fs_compressed_file(inode)) \
+ (atomic_inc(&F2FS_I_SB(inode)->compr_inode)); \
+ } while (0)
+#define stat_dec_compr_inode(inode) \
+ do { \
+ if (f2fs_compressed_file(inode)) \
+ (atomic_dec(&F2FS_I_SB(inode)->compr_inode)); \
+ } while (0)
+#define stat_add_compr_blocks(inode, blocks) \
+ (atomic_add(blocks, &F2FS_I_SB(inode)->compr_blocks))
+#define stat_sub_compr_blocks(inode, blocks) \
+ (atomic_sub(blocks, &F2FS_I_SB(inode)->compr_blocks))
+#define stat_inc_meta_count(sbi, blkaddr) \
+ do { \
+ if (blkaddr < SIT_I(sbi)->sit_base_addr) \
+ atomic_inc(&(sbi)->meta_count[META_CP]); \
+ else if (blkaddr < NM_I(sbi)->nat_blkaddr) \
+ atomic_inc(&(sbi)->meta_count[META_SIT]); \
+ else if (blkaddr < SM_I(sbi)->ssa_blkaddr) \
+ atomic_inc(&(sbi)->meta_count[META_NAT]); \
+ else if (blkaddr < SM_I(sbi)->main_blkaddr) \
+ atomic_inc(&(sbi)->meta_count[META_SSA]); \
+ } while (0)
#define stat_inc_seg_type(sbi, curseg) \
((sbi)->segment_count[(curseg)->alloc_type]++)
#define stat_inc_block_count(sbi, curseg) \
((sbi)->block_count[(curseg)->alloc_type]++)
#define stat_inc_inplace_blocks(sbi) \
(atomic_inc(&(sbi)->inplace_count))
-#define stat_inc_atomic_write(inode) \
- (atomic_inc(&F2FS_I_SB(inode)->aw_cnt))
-#define stat_dec_atomic_write(inode) \
- (atomic_dec(&F2FS_I_SB(inode)->aw_cnt))
#define stat_update_max_atomic_write(inode) \
do { \
- int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \
+ int cur = F2FS_I_SB(inode)->atomic_files; \
int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
if (cur > max) \
atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
@@ -3253,17 +3684,20 @@ static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
int f2fs_build_stats(struct f2fs_sb_info *sbi);
void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
-int __init f2fs_create_root_stats(void);
+void __init f2fs_create_root_stats(void);
void f2fs_destroy_root_stats(void);
+void f2fs_update_sit_info(struct f2fs_sb_info *sbi);
#else
#define stat_inc_cp_count(si) do { } while (0)
#define stat_inc_bg_cp_count(si) do { } while (0)
#define stat_inc_call_count(si) do { } while (0)
#define stat_inc_bggc_count(si) do { } while (0)
+#define stat_io_skip_bggc_count(sbi) do { } while (0)
+#define stat_other_skip_bggc_count(sbi) do { } while (0)
#define stat_inc_dirty_inode(sbi, type) do { } while (0)
#define stat_dec_dirty_inode(sbi, type) do { } while (0)
-#define stat_inc_total_hit(sb) do { } while (0)
-#define stat_inc_rbtree_node_hit(sb) do { } while (0)
+#define stat_inc_total_hit(sbi) do { } while (0)
+#define stat_inc_rbtree_node_hit(sbi) do { } while (0)
#define stat_inc_largest_node_hit(sbi) do { } while (0)
#define stat_inc_cached_node_hit(sbi) do { } while (0)
#define stat_inc_inline_xattr(inode) do { } while (0)
@@ -3272,12 +3706,17 @@ void f2fs_destroy_root_stats(void);
#define stat_dec_inline_inode(inode) do { } while (0)
#define stat_inc_inline_dir(inode) do { } while (0)
#define stat_dec_inline_dir(inode) do { } while (0)
+#define stat_inc_compr_inode(inode) do { } while (0)
+#define stat_dec_compr_inode(inode) do { } while (0)
+#define stat_add_compr_blocks(inode, blocks) do { } while (0)
+#define stat_sub_compr_blocks(inode, blocks) do { } while (0)
#define stat_inc_atomic_write(inode) do { } while (0)
#define stat_dec_atomic_write(inode) do { } while (0)
#define stat_update_max_atomic_write(inode) do { } while (0)
#define stat_inc_volatile_write(inode) do { } while (0)
#define stat_dec_volatile_write(inode) do { } while (0)
#define stat_update_max_volatile_write(inode) do { } while (0)
+#define stat_inc_meta_count(sbi, blkaddr) do { } while (0)
#define stat_inc_seg_type(sbi, curseg) do { } while (0)
#define stat_inc_block_count(sbi, curseg) do { } while (0)
#define stat_inc_inplace_blocks(sbi) do { } while (0)
@@ -3288,8 +3727,9 @@ void f2fs_destroy_root_stats(void);
static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
-static inline int __init f2fs_create_root_stats(void) { return 0; }
+static inline void __init f2fs_create_root_stats(void) { }
static inline void f2fs_destroy_root_stats(void) { }
+static inline void f2fs_update_sit_info(struct f2fs_sb_info *sbi) {}
#endif
extern const struct file_operations f2fs_dir_operations;
@@ -3315,14 +3755,15 @@ void f2fs_truncate_inline_inode(struct inode *inode,
int f2fs_read_inline_data(struct inode *inode, struct page *page);
int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
int f2fs_convert_inline_inode(struct inode *inode);
+int f2fs_try_convert_inline_dir(struct inode *dir, struct dentry *dentry);
int f2fs_write_inline_data(struct inode *inode, struct page *page);
int f2fs_recover_inline_data(struct inode *inode, struct page *npage);
struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir,
- struct fscrypt_name *fname, struct page **res_page);
+ const struct f2fs_filename *fname,
+ struct page **res_page);
int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent,
struct page *ipage);
-int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name,
- const struct qstr *orig_name,
+int f2fs_add_inline_entry(struct inode *dir, const struct f2fs_filename *fname,
struct inode *inode, nid_t ino, umode_t mode);
void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry,
struct page *page, struct inode *dir,
@@ -3347,18 +3788,19 @@ void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
/*
* extent_cache.c
*/
-struct rb_entry *f2fs_lookup_rb_tree(struct rb_root *root,
+struct rb_entry *f2fs_lookup_rb_tree(struct rb_root_cached *root,
struct rb_entry *cached_re, unsigned int ofs);
struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi,
- struct rb_root *root, struct rb_node **parent,
- unsigned int ofs);
-struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root *root,
+ struct rb_root_cached *root,
+ struct rb_node **parent,
+ unsigned int ofs, bool *leftmost);
+struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root_cached *root,
struct rb_entry *cached_re, unsigned int ofs,
struct rb_entry **prev_entry, struct rb_entry **next_entry,
struct rb_node ***insert_p, struct rb_node **insert_parent,
- bool force);
+ bool force, bool *leftmost);
bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi,
- struct rb_root *root);
+ struct rb_root_cached *root);
unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink);
bool f2fs_init_extent_tree(struct inode *inode, struct f2fs_extent *i_ext);
void f2fs_drop_extent_tree(struct inode *inode);
@@ -3381,22 +3823,20 @@ void f2fs_exit_sysfs(void);
int f2fs_register_sysfs(struct f2fs_sb_info *sbi);
void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi);
+/* verity.c */
+extern const struct fsverity_operations f2fs_verityops;
+
/*
* crypto support
*/
-static inline bool f2fs_encrypted_inode(struct inode *inode)
-{
- return file_is_encrypt(inode);
-}
-
static inline bool f2fs_encrypted_file(struct inode *inode)
{
- return f2fs_encrypted_inode(inode) && S_ISREG(inode->i_mode);
+ return IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode);
}
static inline void f2fs_set_encrypted_inode(struct inode *inode)
{
-#ifdef CONFIG_F2FS_FS_ENCRYPTION
+#ifdef CONFIG_FS_ENCRYPTION
file_set_encrypt(inode);
f2fs_set_inode_flags(inode);
#endif
@@ -3408,13 +3848,102 @@ static inline void f2fs_set_encrypted_inode(struct inode *inode)
*/
static inline bool f2fs_post_read_required(struct inode *inode)
{
- return f2fs_encrypted_file(inode);
+ return f2fs_encrypted_file(inode) || fsverity_active(inode) ||
+ f2fs_compressed_file(inode);
+}
+
+/*
+ * compress.c
+ */
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+bool f2fs_is_compressed_page(struct page *page);
+struct page *f2fs_compress_control_page(struct page *page);
+int f2fs_prepare_compress_overwrite(struct inode *inode,
+ struct page **pagep, pgoff_t index, void **fsdata);
+bool f2fs_compress_write_end(struct inode *inode, void *fsdata,
+ pgoff_t index, unsigned copied);
+int f2fs_truncate_partial_cluster(struct inode *inode, u64 from, bool lock);
+void f2fs_compress_write_end_io(struct bio *bio, struct page *page);
+bool f2fs_is_compress_backend_ready(struct inode *inode);
+int f2fs_init_compress_mempool(void);
+void f2fs_destroy_compress_mempool(void);
+void f2fs_decompress_pages(struct bio *bio, struct page *page, bool verity);
+bool f2fs_cluster_is_empty(struct compress_ctx *cc);
+bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index);
+void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct page *page);
+int f2fs_write_multi_pages(struct compress_ctx *cc,
+ int *submitted,
+ struct writeback_control *wbc,
+ enum iostat_type io_type);
+int f2fs_is_compressed_cluster(struct inode *inode, pgoff_t index);
+int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
+ unsigned nr_pages, sector_t *last_block_in_bio,
+ bool is_readahead, bool for_write);
+struct decompress_io_ctx *f2fs_alloc_dic(struct compress_ctx *cc);
+void f2fs_free_dic(struct decompress_io_ctx *dic);
+void f2fs_decompress_end_io(struct page **rpages,
+ unsigned int cluster_size, bool err, bool verity);
+int f2fs_init_compress_ctx(struct compress_ctx *cc);
+void f2fs_destroy_compress_ctx(struct compress_ctx *cc);
+void f2fs_init_compress_info(struct f2fs_sb_info *sbi);
+#else
+static inline bool f2fs_is_compressed_page(struct page *page) { return false; }
+static inline bool f2fs_is_compress_backend_ready(struct inode *inode)
+{
+ if (!f2fs_compressed_file(inode))
+ return true;
+ /* not support compression */
+ return false;
+}
+static inline struct page *f2fs_compress_control_page(struct page *page)
+{
+ WARN_ON_ONCE(1);
+ return ERR_PTR(-EINVAL);
+}
+static inline int f2fs_init_compress_mempool(void) { return 0; }
+static inline void f2fs_destroy_compress_mempool(void) { }
+#endif
+
+static inline void set_compress_context(struct inode *inode)
+{
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+
+ F2FS_I(inode)->i_compress_algorithm =
+ F2FS_OPTION(sbi).compress_algorithm;
+ F2FS_I(inode)->i_log_cluster_size =
+ F2FS_OPTION(sbi).compress_log_size;
+ F2FS_I(inode)->i_cluster_size =
+ 1 << F2FS_I(inode)->i_log_cluster_size;
+ F2FS_I(inode)->i_flags |= F2FS_COMPR_FL;
+ set_inode_flag(inode, FI_COMPRESSED_FILE);
+ stat_inc_compr_inode(inode);
+ f2fs_mark_inode_dirty_sync(inode, true);
+}
+
+static inline u64 f2fs_disable_compressed_file(struct inode *inode)
+{
+ struct f2fs_inode_info *fi = F2FS_I(inode);
+
+ if (!f2fs_compressed_file(inode))
+ return 0;
+ if (S_ISREG(inode->i_mode)) {
+ if (get_dirty_pages(inode))
+ return 1;
+ if (fi->i_compr_blocks)
+ return fi->i_compr_blocks;
+ }
+
+ fi->i_flags &= ~F2FS_COMPR_FL;
+ stat_dec_compr_inode(inode);
+ clear_inode_flag(inode, FI_COMPRESSED_FILE);
+ f2fs_mark_inode_dirty_sync(inode, true);
+ return 0;
}
#define F2FS_FEATURE_FUNCS(name, flagname) \
-static inline int f2fs_sb_has_##name(struct super_block *sb) \
+static inline int f2fs_sb_has_##name(struct f2fs_sb_info *sbi) \
{ \
- return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_##flagname); \
+ return F2FS_HAS_FEATURE(sbi, F2FS_FEATURE_##flagname); \
}
F2FS_FEATURE_FUNCS(encrypt, ENCRYPT);
@@ -3426,29 +3955,43 @@ F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR);
F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO);
F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME);
F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND);
+F2FS_FEATURE_FUNCS(verity, VERITY);
+F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM);
+F2FS_FEATURE_FUNCS(casefold, CASEFOLD);
+F2FS_FEATURE_FUNCS(compression, COMPRESSION);
#ifdef CONFIG_BLK_DEV_ZONED
-static inline int get_blkz_type(struct f2fs_sb_info *sbi,
- struct block_device *bdev, block_t blkaddr)
+static inline bool f2fs_blkz_is_seq(struct f2fs_sb_info *sbi, int devi,
+ block_t blkaddr)
{
unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz;
- int i;
- for (i = 0; i < sbi->s_ndevs; i++)
- if (FDEV(i).bdev == bdev)
- return FDEV(i).blkz_type[zno];
- return -EINVAL;
+ return test_bit(zno, FDEV(devi).blkz_seq);
}
#endif
static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi)
{
- return f2fs_sb_has_blkzoned(sbi->sb);
+ return f2fs_sb_has_blkzoned(sbi);
+}
+
+static inline bool f2fs_bdev_support_discard(struct block_device *bdev)
+{
+ return blk_queue_discard(bdev_get_queue(bdev)) ||
+ bdev_is_zoned(bdev);
}
static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi)
{
- return blk_queue_discard(bdev_get_queue(sbi->sb->s_bdev));
+ int i;
+
+ if (!f2fs_is_multi_device(sbi))
+ return f2fs_bdev_support_discard(sbi->sb->s_bdev);
+
+ for (i = 0; i < sbi->s_ndevs; i++)
+ if (f2fs_bdev_support_discard(FDEV(i).bdev))
+ return true;
+ return false;
}
static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi)
@@ -3457,37 +4000,120 @@ static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi)
f2fs_hw_should_discard(sbi);
}
-static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt)
+static inline bool f2fs_hw_is_readonly(struct f2fs_sb_info *sbi)
{
- clear_opt(sbi, ADAPTIVE);
- clear_opt(sbi, LFS);
+ int i;
- switch (mt) {
- case F2FS_MOUNT_ADAPTIVE:
- set_opt(sbi, ADAPTIVE);
- break;
- case F2FS_MOUNT_LFS:
- set_opt(sbi, LFS);
- break;
- }
+ if (!f2fs_is_multi_device(sbi))
+ return bdev_read_only(sbi->sb->s_bdev);
+
+ for (i = 0; i < sbi->s_ndevs; i++)
+ if (bdev_read_only(FDEV(i).bdev))
+ return true;
+ return false;
}
-static inline bool f2fs_may_encrypt(struct inode *inode)
+static inline bool f2fs_lfs_mode(struct f2fs_sb_info *sbi)
{
-#ifdef CONFIG_F2FS_FS_ENCRYPTION
+ return F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS;
+}
+
+static inline bool f2fs_may_encrypt(struct inode *dir, struct inode *inode)
+{
+#ifdef CONFIG_FS_ENCRYPTION
+ struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
umode_t mode = inode->i_mode;
- return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode));
-#else
- return false;
+ /*
+ * If the directory encrypted or dummy encryption enabled,
+ * then we should encrypt the inode.
+ */
+ if (IS_ENCRYPTED(dir) || DUMMY_ENCRYPTION_ENABLED(sbi))
+ return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode));
#endif
+ return false;
}
-static inline bool f2fs_force_buffered_io(struct inode *inode, int rw)
+static inline bool f2fs_may_compress(struct inode *inode)
{
- return (f2fs_post_read_required(inode) ||
- (rw == WRITE && test_opt(F2FS_I_SB(inode), LFS)) ||
- f2fs_is_multi_device(F2FS_I_SB(inode)));
+ if (IS_SWAPFILE(inode) || f2fs_is_pinned_file(inode) ||
+ f2fs_is_atomic_file(inode) ||
+ f2fs_is_volatile_file(inode))
+ return false;
+ return S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode);
+}
+
+static inline void f2fs_i_compr_blocks_update(struct inode *inode,
+ u64 blocks, bool add)
+{
+ int diff = F2FS_I(inode)->i_cluster_size - blocks;
+
+ /* don't update i_compr_blocks if saved blocks were released */
+ if (!add && !F2FS_I(inode)->i_compr_blocks)
+ return;
+
+ if (add) {
+ F2FS_I(inode)->i_compr_blocks += diff;
+ stat_add_compr_blocks(inode, diff);
+ } else {
+ F2FS_I(inode)->i_compr_blocks -= diff;
+ stat_sub_compr_blocks(inode, diff);
+ }
+ f2fs_mark_inode_dirty_sync(inode, true);
+}
+
+static inline int block_unaligned_IO(struct inode *inode,
+ struct kiocb *iocb, struct iov_iter *iter)
+{
+ unsigned int i_blkbits = READ_ONCE(inode->i_blkbits);
+ unsigned int blocksize_mask = (1 << i_blkbits) - 1;
+ loff_t offset = iocb->ki_pos;
+ unsigned long align = offset | iov_iter_alignment(iter);
+
+ return align & blocksize_mask;
+}
+
+static inline int allow_outplace_dio(struct inode *inode,
+ struct kiocb *iocb, struct iov_iter *iter)
+{
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+ int rw = iov_iter_rw(iter);
+
+ return (f2fs_lfs_mode(sbi) && (rw == WRITE) &&
+ !block_unaligned_IO(inode, iocb, iter));
+}
+
+static inline bool f2fs_force_buffered_io(struct inode *inode,
+ struct kiocb *iocb, struct iov_iter *iter)
+{
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+ int rw = iov_iter_rw(iter);
+
+ if (!fscrypt_dio_supported(iocb, iter))
+ return true;
+ if (fsverity_active(inode))
+ return true;
+ if (f2fs_compressed_file(inode))
+ return true;
+ if (f2fs_is_multi_device(sbi))
+ return true;
+ /*
+ * for blkzoned device, fallback direct IO to buffered IO, so
+ * all IOs can be serialized by log-structured write.
+ */
+ if (f2fs_sb_has_blkzoned(sbi))
+ return true;
+ if (f2fs_lfs_mode(sbi) && (rw == WRITE)) {
+ if (block_unaligned_IO(inode, iocb, iter))
+ return true;
+ if (F2FS_IO_ALIGNED(sbi))
+ return true;
+ }
+ if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED) &&
+ !IS_SWAPFILE(inode))
+ return true;
+
+ return false;
}
#ifdef CONFIG_F2FS_FAULT_INJECTION
@@ -3497,8 +4123,20 @@ extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
#define f2fs_build_fault_attr(sbi, rate, type) do { } while (0)
#endif
+static inline bool is_journalled_quota(struct f2fs_sb_info *sbi)
+{
+#ifdef CONFIG_QUOTA
+ if (f2fs_sb_has_quota_ino(sbi))
+ return true;
+ if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] ||
+ F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] ||
+ F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
+ return true;
#endif
+ return false;
+}
#define EFSBADCRC EBADMSG /* Bad CRC detected */
#define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */
+#endif /* _LINUX_F2FS_H */
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 2a72494..010117b 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* fs/f2fs/file.c
*
* Copyright (c) 2012 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/fs.h>
#include <linux/f2fs_fs.h>
@@ -23,6 +20,7 @@
#include <linux/uio.h>
#include <linux/uuid.h>
#include <linux/file.h>
+#include <linux/nls.h>
#include "f2fs.h"
#include "node.h"
@@ -32,6 +30,7 @@
#include "gc.h"
#include "trace.h"
#include <trace/events/f2fs.h>
+#include <trace/events/android_fs.h>
static vm_fault_t f2fs_filemap_fault(struct vm_fault *vmf)
{
@@ -42,6 +41,12 @@ static vm_fault_t f2fs_filemap_fault(struct vm_fault *vmf)
ret = filemap_fault(vmf);
up_read(&F2FS_I(inode)->i_mmap_sem);
+ if (!ret)
+ f2fs_update_iostat(F2FS_I_SB(inode), APP_MAPPED_READ_IO,
+ F2FS_BLKSIZE);
+
+ trace_f2fs_filemap_fault(inode, vmf->pgoff, (unsigned long)ret);
+
return ret;
}
@@ -51,30 +56,43 @@ static vm_fault_t f2fs_vm_page_mkwrite(struct vm_fault *vmf)
struct inode *inode = file_inode(vmf->vma->vm_file);
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
struct dnode_of_data dn;
- int err;
+ bool need_alloc = true;
+ int err = 0;
if (unlikely(f2fs_cp_error(sbi))) {
err = -EIO;
goto err;
}
+ if (!f2fs_is_checkpoint_ready(sbi)) {
+ err = -ENOSPC;
+ goto err;
+ }
+
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+ if (f2fs_compressed_file(inode)) {
+ int ret = f2fs_is_compressed_cluster(inode, page->index);
+
+ if (ret < 0) {
+ err = ret;
+ goto err;
+ } else if (ret) {
+ if (ret < F2FS_I(inode)->i_cluster_size) {
+ err = -EAGAIN;
+ goto err;
+ }
+ need_alloc = false;
+ }
+ }
+#endif
+ /* should do out of any locked page */
+ if (need_alloc)
+ f2fs_balance_fs(sbi, true);
+
sb_start_pagefault(inode->i_sb);
f2fs_bug_on(sbi, f2fs_has_inline_data(inode));
- /* block allocation */
- f2fs_lock_op(sbi);
- set_new_dnode(&dn, inode, NULL, NULL, 0);
- err = f2fs_reserve_block(&dn, page->index);
- if (err) {
- f2fs_unlock_op(sbi);
- goto out;
- }
- f2fs_put_dnode(&dn);
- f2fs_unlock_op(sbi);
-
- f2fs_balance_fs(sbi, dn.node_changed);
-
file_update_time(vmf->vma->vm_file);
down_read(&F2FS_I(inode)->i_mmap_sem);
lock_page(page);
@@ -86,11 +104,37 @@ static vm_fault_t f2fs_vm_page_mkwrite(struct vm_fault *vmf)
goto out_sem;
}
+ if (need_alloc) {
+ /* block allocation */
+ __do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, true);
+ set_new_dnode(&dn, inode, NULL, NULL, 0);
+ err = f2fs_get_block(&dn, page->index);
+ f2fs_put_dnode(&dn);
+ __do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, false);
+ }
+
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+ if (!need_alloc) {
+ set_new_dnode(&dn, inode, NULL, NULL, 0);
+ err = f2fs_get_dnode_of_data(&dn, page->index, LOOKUP_NODE);
+ f2fs_put_dnode(&dn);
+ }
+#endif
+ if (err) {
+ unlock_page(page);
+ goto out_sem;
+ }
+
+ f2fs_wait_on_page_writeback(page, DATA, false, true);
+
+ /* wait for GCed page writeback via META_MAPPING */
+ f2fs_wait_on_block_writeback(inode, dn.data_blkaddr);
+
/*
* check to see if the page is mapped already (no holes)
*/
if (PageMappedToDisk(page))
- goto mapped;
+ goto out_sem;
/* page is wholly or partially inside EOF */
if (((loff_t)(page->index + 1) << PAGE_SHIFT) >
@@ -105,20 +149,13 @@ static vm_fault_t f2fs_vm_page_mkwrite(struct vm_fault *vmf)
SetPageUptodate(page);
f2fs_update_iostat(sbi, APP_MAPPED_IO, F2FS_BLKSIZE);
+ f2fs_update_time(sbi, REQ_TIME);
trace_f2fs_vm_page_mkwrite(page, DATA);
-mapped:
- /* fill the page */
- f2fs_wait_on_page_writeback(page, DATA, false);
-
- /* wait for GCed page writeback via META_MAPPING */
- f2fs_wait_on_block_writeback(inode, dn.data_blkaddr);
-
out_sem:
up_read(&F2FS_I(inode)->i_mmap_sem);
-out:
+
sb_end_pagefault(inode->i_sb);
- f2fs_update_time(sbi, REQ_TIME);
err:
return block_page_mkwrite_return(err);
}
@@ -133,9 +170,11 @@ static int get_parent_ino(struct inode *inode, nid_t *pino)
{
struct dentry *dentry;
- inode = igrab(inode);
- dentry = d_find_any_alias(inode);
- iput(inode);
+ /*
+ * Make sure to get the non-deleted alias. The alias associated with
+ * the open file descriptor being fsync()'ed may be deleted already.
+ */
+ dentry = d_find_alias(inode);
if (!dentry)
return 0;
@@ -151,6 +190,8 @@ static inline enum cp_reason_type need_do_checkpoint(struct inode *inode)
if (!S_ISREG(inode->i_mode))
cp_reason = CP_NON_REGULAR;
+ else if (f2fs_compressed_file(inode))
+ cp_reason = CP_COMPRESSED;
else if (inode->i_nlink != 1)
cp_reason = CP_HARDLINK;
else if (is_sbi_flag_set(sbi, SBI_NEED_CP))
@@ -214,11 +255,21 @@ static int f2fs_do_sync_file(struct file *file, loff_t start, loff_t end,
};
unsigned int seq_id = 0;
- if (unlikely(f2fs_readonly(inode->i_sb)))
+ if (unlikely(f2fs_readonly(inode->i_sb) ||
+ is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
return 0;
trace_f2fs_sync_file_enter(inode);
+ if (trace_android_fs_fsync_start_enabled()) {
+ char *path, pathbuf[MAX_TRACE_PATHBUF_LEN];
+
+ path = android_fstrace_get_pathname(pathbuf,
+ MAX_TRACE_PATHBUF_LEN, inode);
+ trace_android_fs_fsync_start(inode,
+ current->pid, path, current->comm);
+ }
+
if (S_ISDIR(inode->i_mode))
goto go_write;
@@ -324,6 +375,8 @@ static int f2fs_do_sync_file(struct file *file, loff_t start, loff_t end,
out:
trace_f2fs_sync_file_exit(inode, cp_reason, datasync, ret);
f2fs_trace_ios(NULL, 1);
+ trace_android_fs_fsync_end(inode, start, end - start);
+
return ret;
}
@@ -359,7 +412,7 @@ static bool __found_offset(struct f2fs_sb_info *sbi, block_t blkaddr,
switch (whence) {
case SEEK_DATA:
if ((blkaddr == NEW_ADDR && dirty == pgofs) ||
- is_valid_data_blkaddr(sbi, blkaddr))
+ __is_valid_data_blkaddr(blkaddr))
return true;
break;
case SEEK_HOLE:
@@ -420,12 +473,11 @@ static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
data_ofs = (loff_t)pgofs << PAGE_SHIFT) {
block_t blkaddr;
- blkaddr = datablock_addr(dn.inode,
- dn.node_page, dn.ofs_in_node);
+ blkaddr = f2fs_data_blkaddr(&dn);
if (__is_valid_data_blkaddr(blkaddr) &&
!f2fs_is_valid_blkaddr(F2FS_I_SB(inode),
- blkaddr, DATA_GENERIC)) {
+ blkaddr, DATA_GENERIC_ENHANCE)) {
f2fs_put_dnode(&dn);
goto fail;
}
@@ -480,6 +532,9 @@ static int f2fs_file_mmap(struct file *file, struct vm_area_struct *vma)
if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
return -EIO;
+ if (!f2fs_is_compress_backend_ready(inode))
+ return -EOPNOTSUPP;
+
/* we don't need to use inline_data strictly */
err = f2fs_convert_inline_inode(inode);
if (err)
@@ -487,6 +542,7 @@ static int f2fs_file_mmap(struct file *file, struct vm_area_struct *vma)
file_accessed(file);
vma->vm_ops = &f2fs_file_vm_ops;
+ set_inode_flag(inode, FI_MMAP_FILE);
return 0;
}
@@ -497,6 +553,13 @@ static int f2fs_file_open(struct inode *inode, struct file *filp)
if (err)
return err;
+ if (!f2fs_is_compress_backend_ready(inode))
+ return -EOPNOTSUPP;
+
+ err = fsverity_file_open(inode, filp);
+ if (err)
+ return err;
+
filp->f_mode |= FMODE_NOWAIT;
return dquot_file_open(inode, filp);
@@ -509,6 +572,10 @@ void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count)
int nr_free = 0, ofs = dn->ofs_in_node, len = count;
__le32 *addr;
int base = 0;
+ bool compressed_cluster = false;
+ int cluster_index = 0, valid_blocks = 0;
+ int cluster_size = F2FS_I(dn->inode)->i_cluster_size;
+ bool released = !F2FS_I(dn->inode)->i_compr_blocks;
if (IS_INODE(dn->node_page) && f2fs_has_extra_attr(dn->inode))
base = get_extra_isize(dn->inode);
@@ -516,25 +583,45 @@ void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count)
raw_node = F2FS_NODE(dn->node_page);
addr = blkaddr_in_node(raw_node) + base + ofs;
- for (; count > 0; count--, addr++, dn->ofs_in_node++) {
+ /* Assumption: truncateion starts with cluster */
+ for (; count > 0; count--, addr++, dn->ofs_in_node++, cluster_index++) {
block_t blkaddr = le32_to_cpu(*addr);
+ if (f2fs_compressed_file(dn->inode) &&
+ !(cluster_index & (cluster_size - 1))) {
+ if (compressed_cluster)
+ f2fs_i_compr_blocks_update(dn->inode,
+ valid_blocks, false);
+ compressed_cluster = (blkaddr == COMPRESS_ADDR);
+ valid_blocks = 0;
+ }
+
if (blkaddr == NULL_ADDR)
continue;
dn->data_blkaddr = NULL_ADDR;
f2fs_set_data_blkaddr(dn);
- if (__is_valid_data_blkaddr(blkaddr) &&
- !f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC))
- continue;
+ if (__is_valid_data_blkaddr(blkaddr)) {
+ if (!f2fs_is_valid_blkaddr(sbi, blkaddr,
+ DATA_GENERIC_ENHANCE))
+ continue;
+ if (compressed_cluster)
+ valid_blocks++;
+ }
- f2fs_invalidate_blocks(sbi, blkaddr);
if (dn->ofs_in_node == 0 && IS_INODE(dn->node_page))
clear_inode_flag(dn->inode, FI_FIRST_BLOCK_WRITTEN);
- nr_free++;
+
+ f2fs_invalidate_blocks(sbi, blkaddr);
+
+ if (!released || blkaddr != COMPRESS_ADDR)
+ nr_free++;
}
+ if (compressed_cluster)
+ f2fs_i_compr_blocks_update(dn->inode, valid_blocks, false);
+
if (nr_free) {
pgoff_t fofs;
/*
@@ -555,7 +642,7 @@ void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count)
void f2fs_truncate_data_blocks(struct dnode_of_data *dn)
{
- f2fs_truncate_data_blocks_range(dn, ADDRS_PER_BLOCK);
+ f2fs_truncate_data_blocks_range(dn, ADDRS_PER_BLOCK(dn->inode));
}
static int truncate_partial_data_page(struct inode *inode, u64 from,
@@ -581,18 +668,18 @@ static int truncate_partial_data_page(struct inode *inode, u64 from,
if (IS_ERR(page))
return PTR_ERR(page) == -ENOENT ? 0 : PTR_ERR(page);
truncate_out:
- f2fs_wait_on_page_writeback(page, DATA, true);
+ f2fs_wait_on_page_writeback(page, DATA, true, true);
zero_user(page, offset, PAGE_SIZE - offset);
/* An encrypted inode should have a key and truncate the last page. */
- f2fs_bug_on(F2FS_I_SB(inode), cache_only && f2fs_encrypted_inode(inode));
+ f2fs_bug_on(F2FS_I_SB(inode), cache_only && IS_ENCRYPTED(inode));
if (!cache_only)
set_page_dirty(page);
f2fs_put_page(page, 1);
return 0;
}
-int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock)
+int f2fs_do_truncate_blocks(struct inode *inode, u64 from, bool lock)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
struct dnode_of_data dn;
@@ -657,6 +744,33 @@ int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock)
return err;
}
+int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock)
+{
+ u64 free_from = from;
+ int err;
+
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+ /*
+ * for compressed file, only support cluster size
+ * aligned truncation.
+ */
+ if (f2fs_compressed_file(inode))
+ free_from = round_up(from,
+ F2FS_I(inode)->i_cluster_size << PAGE_SHIFT);
+#endif
+
+ err = f2fs_do_truncate_blocks(inode, free_from, lock);
+ if (err)
+ return err;
+
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+ if (from != free_from)
+ err = f2fs_truncate_partial_cluster(inode, from, lock);
+#endif
+
+ return err;
+}
+
int f2fs_truncate(struct inode *inode)
{
int err;
@@ -671,7 +785,7 @@ int f2fs_truncate(struct inode *inode)
trace_f2fs_truncate(inode);
if (time_to_inject(F2FS_I_SB(inode), FAULT_TRUNCATE)) {
- f2fs_show_injection_info(FAULT_TRUNCATE);
+ f2fs_show_injection_info(F2FS_I_SB(inode), FAULT_TRUNCATE);
return -EIO;
}
@@ -704,30 +818,33 @@ int f2fs_getattr(const struct path *path, struct kstat *stat,
unsigned int flags;
if (f2fs_has_extra_attr(inode) &&
- f2fs_sb_has_inode_crtime(inode->i_sb) &&
+ f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)) &&
F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) {
stat->result_mask |= STATX_BTIME;
stat->btime.tv_sec = fi->i_crtime.tv_sec;
stat->btime.tv_nsec = fi->i_crtime.tv_nsec;
}
- flags = fi->i_flags & F2FS_FL_USER_VISIBLE;
- if (flags & F2FS_APPEND_FL)
- stat->attributes |= STATX_ATTR_APPEND;
+ flags = fi->i_flags;
if (flags & F2FS_COMPR_FL)
stat->attributes |= STATX_ATTR_COMPRESSED;
- if (f2fs_encrypted_inode(inode))
+ if (flags & F2FS_APPEND_FL)
+ stat->attributes |= STATX_ATTR_APPEND;
+ if (IS_ENCRYPTED(inode))
stat->attributes |= STATX_ATTR_ENCRYPTED;
if (flags & F2FS_IMMUTABLE_FL)
stat->attributes |= STATX_ATTR_IMMUTABLE;
if (flags & F2FS_NODUMP_FL)
stat->attributes |= STATX_ATTR_NODUMP;
+ if (IS_VERITY(inode))
+ stat->attributes |= STATX_ATTR_VERITY;
- stat->attributes_mask |= (STATX_ATTR_APPEND |
- STATX_ATTR_COMPRESSED |
+ stat->attributes_mask |= (STATX_ATTR_COMPRESSED |
+ STATX_ATTR_APPEND |
STATX_ATTR_ENCRYPTED |
STATX_ATTR_IMMUTABLE |
- STATX_ATTR_NODUMP);
+ STATX_ATTR_NODUMP |
+ STATX_ATTR_VERITY);
generic_fillattr(inode, stat);
@@ -778,6 +895,10 @@ int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
return -EIO;
+ if ((attr->ia_valid & ATTR_SIZE) &&
+ !f2fs_is_compress_backend_ready(inode))
+ return -EOPNOTSUPP;
+
err = setattr_prepare(dentry, attr);
if (err)
return err;
@@ -786,6 +907,10 @@ int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
if (err)
return err;
+ err = fsverity_prepare_setattr(dentry, attr);
+ if (err)
+ return err;
+
if (is_quota_modification(inode, attr)) {
err = dquot_initialize(inode);
if (err)
@@ -795,20 +920,45 @@ int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
!uid_eq(attr->ia_uid, inode->i_uid)) ||
(attr->ia_valid & ATTR_GID &&
!gid_eq(attr->ia_gid, inode->i_gid))) {
+ f2fs_lock_op(F2FS_I_SB(inode));
err = dquot_transfer(inode, attr);
- if (err)
+ if (err) {
+ set_sbi_flag(F2FS_I_SB(inode),
+ SBI_QUOTA_NEED_REPAIR);
+ f2fs_unlock_op(F2FS_I_SB(inode));
return err;
+ }
+ /*
+ * update uid/gid under lock_op(), so that dquot and inode can
+ * be updated atomically.
+ */
+ if (attr->ia_valid & ATTR_UID)
+ inode->i_uid = attr->ia_uid;
+ if (attr->ia_valid & ATTR_GID)
+ inode->i_gid = attr->ia_gid;
+ f2fs_mark_inode_dirty_sync(inode, true);
+ f2fs_unlock_op(F2FS_I_SB(inode));
}
if (attr->ia_valid & ATTR_SIZE) {
- bool to_smaller = (attr->ia_size <= i_size_read(inode));
+ loff_t old_size = i_size_read(inode);
+
+ if (attr->ia_size > MAX_INLINE_DATA(inode)) {
+ /*
+ * should convert inline inode before i_size_write to
+ * keep smaller than inline_data size with inline flag.
+ */
+ err = f2fs_convert_inline_inode(inode);
+ if (err)
+ return err;
+ }
down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
down_write(&F2FS_I(inode)->i_mmap_sem);
truncate_setsize(inode, attr->ia_size);
- if (to_smaller)
+ if (attr->ia_size <= old_size)
err = f2fs_truncate(inode);
/*
* do not trim all blocks after i_size if target size is
@@ -816,23 +966,13 @@ int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
*/
up_write(&F2FS_I(inode)->i_mmap_sem);
up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
-
if (err)
return err;
- if (!to_smaller) {
- /* should convert inline inode here */
- if (!f2fs_may_inline_data(inode)) {
- err = f2fs_convert_inline_inode(inode);
- if (err)
- return err;
- }
- inode->i_mtime = inode->i_ctime = current_time(inode);
- }
-
- down_write(&F2FS_I(inode)->i_sem);
+ spin_lock(&F2FS_I(inode)->i_size_lock);
+ inode->i_mtime = inode->i_ctime = current_time(inode);
F2FS_I(inode)->last_disk_size = i_size_read(inode);
- up_write(&F2FS_I(inode)->i_sem);
+ spin_unlock(&F2FS_I(inode)->i_size_lock);
}
__setattr_copy(inode, attr);
@@ -859,9 +999,7 @@ const struct inode_operations f2fs_file_inode_operations = {
.setattr = f2fs_setattr,
.get_acl = f2fs_get_acl,
.set_acl = f2fs_set_acl,
-#ifdef CONFIG_F2FS_FS_XATTR
.listxattr = f2fs_listxattr,
-#endif
.fiemap = f2fs_fiemap,
};
@@ -883,7 +1021,7 @@ static int fill_zero(struct inode *inode, pgoff_t index,
if (IS_ERR(page))
return PTR_ERR(page);
- f2fs_wait_on_page_writeback(page, DATA, true);
+ f2fs_wait_on_page_writeback(page, DATA, true, true);
zero_user(page, start, len);
set_page_dirty(page);
f2fs_put_page(page, 1);
@@ -997,7 +1135,8 @@ static int __read_out_blkaddrs(struct inode *inode, block_t *blkaddr,
} else if (ret == -ENOENT) {
if (dn.max_level == 0)
return -ENOENT;
- done = min((pgoff_t)ADDRS_PER_BLOCK - dn.ofs_in_node, len);
+ done = min((pgoff_t)ADDRS_PER_BLOCK(inode) -
+ dn.ofs_in_node, len);
blkaddr += done;
do_replace += done;
goto next;
@@ -1006,13 +1145,20 @@ static int __read_out_blkaddrs(struct inode *inode, block_t *blkaddr,
done = min((pgoff_t)ADDRS_PER_PAGE(dn.node_page, inode) -
dn.ofs_in_node, len);
for (i = 0; i < done; i++, blkaddr++, do_replace++, dn.ofs_in_node++) {
- *blkaddr = datablock_addr(dn.inode,
- dn.node_page, dn.ofs_in_node);
+ *blkaddr = f2fs_data_blkaddr(&dn);
+
+ if (__is_valid_data_blkaddr(*blkaddr) &&
+ !f2fs_is_valid_blkaddr(sbi, *blkaddr,
+ DATA_GENERIC_ENHANCE)) {
+ f2fs_put_dnode(&dn);
+ return -EFSCORRUPTED;
+ }
+
if (!f2fs_is_checkpointed_data(sbi, *blkaddr)) {
- if (test_opt(sbi, LFS)) {
+ if (f2fs_lfs_mode(sbi)) {
f2fs_put_dnode(&dn);
- return -ENOTSUPP;
+ return -EOPNOTSUPP;
}
/* do not invalidate this block address */
@@ -1088,8 +1234,7 @@ static int __clone_blkaddrs(struct inode *src_inode, struct inode *dst_inode,
ADDRS_PER_PAGE(dn.node_page, dst_inode) -
dn.ofs_in_node, len - i);
do {
- dn.data_blkaddr = datablock_addr(dn.inode,
- dn.node_page, dn.ofs_in_node);
+ dn.data_blkaddr = f2fs_data_blkaddr(&dn);
f2fs_truncate_data_blocks_range(&dn, 1);
if (do_replace[i]) {
@@ -1148,17 +1293,17 @@ static int __exchange_data_block(struct inode *src_inode,
int ret;
while (len) {
- olen = min((pgoff_t)4 * ADDRS_PER_BLOCK, len);
+ olen = min((pgoff_t)4 * ADDRS_PER_BLOCK(src_inode), len);
src_blkaddr = f2fs_kvzalloc(F2FS_I_SB(src_inode),
array_size(olen, sizeof(block_t)),
- GFP_KERNEL);
+ GFP_NOFS);
if (!src_blkaddr)
return -ENOMEM;
do_replace = f2fs_kvzalloc(F2FS_I_SB(src_inode),
array_size(olen, sizeof(int)),
- GFP_KERNEL);
+ GFP_NOFS);
if (!do_replace) {
kvfree(src_blkaddr);
return -ENOMEM;
@@ -1193,7 +1338,7 @@ static int __exchange_data_block(struct inode *src_inode,
static int f2fs_do_collapse(struct inode *inode, loff_t offset, loff_t len)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
- pgoff_t nrpages = (i_size_read(inode) + PAGE_SIZE - 1) / PAGE_SIZE;
+ pgoff_t nrpages = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
pgoff_t start = offset >> PAGE_SHIFT;
pgoff_t end = (offset + len) >> PAGE_SHIFT;
int ret;
@@ -1265,8 +1410,7 @@ static int f2fs_do_zero_range(struct dnode_of_data *dn, pgoff_t start,
int ret;
for (; index < end; index++, dn->ofs_in_node++) {
- if (datablock_addr(dn->inode, dn->node_page,
- dn->ofs_in_node) == NULL_ADDR)
+ if (f2fs_data_blkaddr(dn) == NULL_ADDR)
count++;
}
@@ -1277,8 +1421,7 @@ static int f2fs_do_zero_range(struct dnode_of_data *dn, pgoff_t start,
dn->ofs_in_node = ofs_in_node;
for (index = start; index < end; index++, dn->ofs_in_node++) {
- dn->data_blkaddr = datablock_addr(dn->inode,
- dn->node_page, dn->ofs_in_node);
+ dn->data_blkaddr = f2fs_data_blkaddr(dn);
/*
* f2fs_reserve_new_blocks will not guarantee entire block
* allocation.
@@ -1446,7 +1589,7 @@ static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len)
pg_start = offset >> PAGE_SHIFT;
pg_end = (offset + len) >> PAGE_SHIFT;
delta = pg_end - pg_start;
- idx = (i_size_read(inode) + PAGE_SIZE - 1) / PAGE_SIZE;
+ idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
/* avoid gc operation during block exchange */
down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
@@ -1485,7 +1628,8 @@ static int expand_inode_data(struct inode *inode, loff_t offset,
{
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
struct f2fs_map_blocks map = { .m_next_pgofs = NULL,
- .m_next_extent = NULL, .m_seg_type = NO_CHECK_TYPE };
+ .m_next_extent = NULL, .m_seg_type = NO_CHECK_TYPE,
+ .m_may_create = true };
pgoff_t pg_end;
loff_t new_size = i_size_read(inode);
loff_t off_end;
@@ -1509,7 +1653,48 @@ static int expand_inode_data(struct inode *inode, loff_t offset,
if (off_end)
map.m_len++;
- err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_AIO);
+ if (!map.m_len)
+ return 0;
+
+ if (f2fs_is_pinned_file(inode)) {
+ block_t len = (map.m_len >> sbi->log_blocks_per_seg) <<
+ sbi->log_blocks_per_seg;
+ block_t done = 0;
+
+ if (map.m_len % sbi->blocks_per_seg)
+ len += sbi->blocks_per_seg;
+
+ map.m_len = sbi->blocks_per_seg;
+next_alloc:
+ if (has_not_enough_free_secs(sbi, 0,
+ GET_SEC_FROM_SEG(sbi, overprovision_segments(sbi)))) {
+ down_write(&sbi->gc_lock);
+ err = f2fs_gc(sbi, true, false, NULL_SEGNO);
+ if (err && err != -ENODATA && err != -EAGAIN)
+ goto out_err;
+ }
+
+ down_write(&sbi->pin_sem);
+ map.m_seg_type = CURSEG_COLD_DATA_PINNED;
+
+ f2fs_lock_op(sbi);
+ f2fs_allocate_new_segments(sbi, CURSEG_COLD_DATA);
+ f2fs_unlock_op(sbi);
+
+ err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_DIO);
+ up_write(&sbi->pin_sem);
+
+ done += map.m_len;
+ len -= map.m_len;
+ map.m_lblk += map.m_len;
+ if (!err && len)
+ goto next_alloc;
+
+ map.m_len = done;
+ } else {
+ err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_AIO);
+ }
+out_err:
if (err) {
pgoff_t last_off;
@@ -1543,15 +1728,24 @@ static long f2fs_fallocate(struct file *file, int mode,
if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
return -EIO;
+ if (!f2fs_is_checkpoint_ready(F2FS_I_SB(inode)))
+ return -ENOSPC;
+ if (!f2fs_is_compress_backend_ready(inode))
+ return -EOPNOTSUPP;
/* f2fs only support ->fallocate for regular file */
if (!S_ISREG(inode->i_mode))
return -EINVAL;
- if (f2fs_encrypted_inode(inode) &&
+ if (IS_ENCRYPTED(inode) &&
(mode & (FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_INSERT_RANGE)))
return -EOPNOTSUPP;
+ if (f2fs_compressed_file(inode) &&
+ (mode & (FALLOC_FL_PUNCH_HOLE | FALLOC_FL_COLLAPSE_RANGE |
+ FALLOC_FL_ZERO_RANGE | FALLOC_FL_INSERT_RANGE)))
+ return -EOPNOTSUPP;
+
if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE |
FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_ZERO_RANGE |
FALLOC_FL_INSERT_RANGE))
@@ -1626,42 +1820,53 @@ static int f2fs_file_flush(struct file *file, fl_owner_t id)
return 0;
}
-static int f2fs_ioc_getflags(struct file *filp, unsigned long arg)
-{
- struct inode *inode = file_inode(filp);
- struct f2fs_inode_info *fi = F2FS_I(inode);
- unsigned int flags = fi->i_flags;
-
- if (f2fs_encrypted_inode(inode))
- flags |= F2FS_ENCRYPT_FL;
- if (f2fs_has_inline_data(inode) || f2fs_has_inline_dentry(inode))
- flags |= F2FS_INLINE_DATA_FL;
-
- flags &= F2FS_FL_USER_VISIBLE;
-
- return put_user(flags, (int __user *)arg);
-}
-
-static int __f2fs_ioc_setflags(struct inode *inode, unsigned int flags)
+static int f2fs_setflags_common(struct inode *inode, u32 iflags, u32 mask)
{
struct f2fs_inode_info *fi = F2FS_I(inode);
- unsigned int oldflags;
+ u32 masked_flags = fi->i_flags & mask;
+
+ f2fs_bug_on(F2FS_I_SB(inode), (iflags & ~mask));
/* Is it quota file? Do not allow user to mess with it */
if (IS_NOQUOTA(inode))
return -EPERM;
- flags = f2fs_mask_flags(inode->i_mode, flags);
+ if ((iflags ^ masked_flags) & F2FS_CASEFOLD_FL) {
+ if (!f2fs_sb_has_casefold(F2FS_I_SB(inode)))
+ return -EOPNOTSUPP;
+ if (!f2fs_empty_dir(inode))
+ return -ENOTEMPTY;
+ }
- oldflags = fi->i_flags;
+ if (iflags & (F2FS_COMPR_FL | F2FS_NOCOMP_FL)) {
+ if (!f2fs_sb_has_compression(F2FS_I_SB(inode)))
+ return -EOPNOTSUPP;
+ if ((iflags & F2FS_COMPR_FL) && (iflags & F2FS_NOCOMP_FL))
+ return -EINVAL;
+ }
- if ((flags ^ oldflags) & (F2FS_APPEND_FL | F2FS_IMMUTABLE_FL))
- if (!capable(CAP_LINUX_IMMUTABLE))
- return -EPERM;
+ if ((iflags ^ masked_flags) & F2FS_COMPR_FL) {
+ if (masked_flags & F2FS_COMPR_FL) {
+ if (f2fs_disable_compressed_file(inode))
+ return -EINVAL;
+ }
+ if (iflags & F2FS_NOCOMP_FL)
+ return -EINVAL;
+ if (iflags & F2FS_COMPR_FL) {
+ if (!f2fs_may_compress(inode))
+ return -EINVAL;
- flags = flags & F2FS_FL_USER_MODIFIABLE;
- flags |= oldflags & ~F2FS_FL_USER_MODIFIABLE;
- fi->i_flags = flags;
+ set_compress_context(inode);
+ }
+ }
+ if ((iflags ^ masked_flags) & F2FS_NOCOMP_FL) {
+ if (masked_flags & F2FS_COMPR_FL)
+ return -EINVAL;
+ }
+
+ fi->i_flags = iflags | (fi->i_flags & ~mask);
+ f2fs_bug_on(F2FS_I_SB(inode), (fi->i_flags & F2FS_COMPR_FL) &&
+ (fi->i_flags & F2FS_NOCOMP_FL));
if (fi->i_flags & F2FS_PROJINHERIT_FL)
set_inode_flag(inode, FI_PROJ_INHERIT);
@@ -1674,26 +1879,143 @@ static int __f2fs_ioc_setflags(struct inode *inode, unsigned int flags)
return 0;
}
+/* FS_IOC_GETFLAGS and FS_IOC_SETFLAGS support */
+
+/*
+ * To make a new on-disk f2fs i_flag gettable via FS_IOC_GETFLAGS, add an entry
+ * for it to f2fs_fsflags_map[], and add its FS_*_FL equivalent to
+ * F2FS_GETTABLE_FS_FL. To also make it settable via FS_IOC_SETFLAGS, also add
+ * its FS_*_FL equivalent to F2FS_SETTABLE_FS_FL.
+ */
+
+static const struct {
+ u32 iflag;
+ u32 fsflag;
+} f2fs_fsflags_map[] = {
+ { F2FS_COMPR_FL, FS_COMPR_FL },
+ { F2FS_SYNC_FL, FS_SYNC_FL },
+ { F2FS_IMMUTABLE_FL, FS_IMMUTABLE_FL },
+ { F2FS_APPEND_FL, FS_APPEND_FL },
+ { F2FS_NODUMP_FL, FS_NODUMP_FL },
+ { F2FS_NOATIME_FL, FS_NOATIME_FL },
+ { F2FS_NOCOMP_FL, FS_NOCOMP_FL },
+ { F2FS_INDEX_FL, FS_INDEX_FL },
+ { F2FS_DIRSYNC_FL, FS_DIRSYNC_FL },
+ { F2FS_PROJINHERIT_FL, FS_PROJINHERIT_FL },
+ { F2FS_CASEFOLD_FL, FS_CASEFOLD_FL },
+};
+
+#define F2FS_GETTABLE_FS_FL ( \
+ FS_COMPR_FL | \
+ FS_SYNC_FL | \
+ FS_IMMUTABLE_FL | \
+ FS_APPEND_FL | \
+ FS_NODUMP_FL | \
+ FS_NOATIME_FL | \
+ FS_NOCOMP_FL | \
+ FS_INDEX_FL | \
+ FS_DIRSYNC_FL | \
+ FS_PROJINHERIT_FL | \
+ FS_ENCRYPT_FL | \
+ FS_INLINE_DATA_FL | \
+ FS_NOCOW_FL | \
+ FS_VERITY_FL | \
+ FS_CASEFOLD_FL)
+
+#define F2FS_SETTABLE_FS_FL ( \
+ FS_COMPR_FL | \
+ FS_SYNC_FL | \
+ FS_IMMUTABLE_FL | \
+ FS_APPEND_FL | \
+ FS_NODUMP_FL | \
+ FS_NOATIME_FL | \
+ FS_NOCOMP_FL | \
+ FS_DIRSYNC_FL | \
+ FS_PROJINHERIT_FL | \
+ FS_CASEFOLD_FL)
+
+/* Convert f2fs on-disk i_flags to FS_IOC_{GET,SET}FLAGS flags */
+static inline u32 f2fs_iflags_to_fsflags(u32 iflags)
+{
+ u32 fsflags = 0;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(f2fs_fsflags_map); i++)
+ if (iflags & f2fs_fsflags_map[i].iflag)
+ fsflags |= f2fs_fsflags_map[i].fsflag;
+
+ return fsflags;
+}
+
+/* Convert FS_IOC_{GET,SET}FLAGS flags to f2fs on-disk i_flags */
+static inline u32 f2fs_fsflags_to_iflags(u32 fsflags)
+{
+ u32 iflags = 0;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(f2fs_fsflags_map); i++)
+ if (fsflags & f2fs_fsflags_map[i].fsflag)
+ iflags |= f2fs_fsflags_map[i].iflag;
+
+ return iflags;
+}
+
+static int f2fs_ioc_getflags(struct file *filp, unsigned long arg)
+{
+ struct inode *inode = file_inode(filp);
+ struct f2fs_inode_info *fi = F2FS_I(inode);
+ u32 fsflags = f2fs_iflags_to_fsflags(fi->i_flags);
+
+ if (IS_ENCRYPTED(inode))
+ fsflags |= FS_ENCRYPT_FL;
+ if (IS_VERITY(inode))
+ fsflags |= FS_VERITY_FL;
+ if (f2fs_has_inline_data(inode) || f2fs_has_inline_dentry(inode))
+ fsflags |= FS_INLINE_DATA_FL;
+ if (is_inode_flag_set(inode, FI_PIN_FILE))
+ fsflags |= FS_NOCOW_FL;
+
+ fsflags &= F2FS_GETTABLE_FS_FL;
+
+ return put_user(fsflags, (int __user *)arg);
+}
+
static int f2fs_ioc_setflags(struct file *filp, unsigned long arg)
{
struct inode *inode = file_inode(filp);
- unsigned int flags;
+ struct f2fs_inode_info *fi = F2FS_I(inode);
+ u32 fsflags, old_fsflags;
+ u32 iflags;
int ret;
if (!inode_owner_or_capable(inode))
return -EACCES;
- if (get_user(flags, (int __user *)arg))
+ if (get_user(fsflags, (int __user *)arg))
return -EFAULT;
+ if (fsflags & ~F2FS_GETTABLE_FS_FL)
+ return -EOPNOTSUPP;
+ fsflags &= F2FS_SETTABLE_FS_FL;
+
+ iflags = f2fs_fsflags_to_iflags(fsflags);
+ if (f2fs_mask_flags(inode->i_mode, iflags) != iflags)
+ return -EOPNOTSUPP;
+
ret = mnt_want_write_file(filp);
if (ret)
return ret;
inode_lock(inode);
- ret = __f2fs_ioc_setflags(inode, flags);
+ old_fsflags = f2fs_iflags_to_fsflags(fi->i_flags);
+ ret = vfs_ioc_setflags_prepare(inode, old_fsflags, fsflags);
+ if (ret)
+ goto out;
+ ret = f2fs_setflags_common(inode, iflags,
+ f2fs_fsflags_to_iflags(F2FS_SETTABLE_FS_FL));
+out:
inode_unlock(inode);
mnt_drop_write_file(filp);
return ret;
@@ -1709,6 +2031,8 @@ static int f2fs_ioc_getversion(struct file *filp, unsigned long arg)
static int f2fs_ioc_start_atomic_write(struct file *filp)
{
struct inode *inode = file_inode(filp);
+ struct f2fs_inode_info *fi = F2FS_I(inode);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
int ret;
if (!inode_owner_or_capable(inode))
@@ -1717,12 +2041,17 @@ static int f2fs_ioc_start_atomic_write(struct file *filp)
if (!S_ISREG(inode->i_mode))
return -EINVAL;
+ if (filp->f_flags & O_DIRECT)
+ return -EINVAL;
+
ret = mnt_want_write_file(filp);
if (ret)
return ret;
inode_lock(inode);
+ f2fs_disable_compressed_file(inode);
+
if (f2fs_is_atomic_file(inode)) {
if (is_inode_flag_set(inode, FI_ATOMIC_REVOKE_REQUEST))
ret = -EINVAL;
@@ -1740,22 +2069,27 @@ static int f2fs_ioc_start_atomic_write(struct file *filp)
* f2fs_is_atomic_file.
*/
if (get_dirty_pages(inode))
- f2fs_msg(F2FS_I_SB(inode)->sb, KERN_WARNING,
- "Unexpected flush for atomic writes: ino=%lu, npages=%u",
- inode->i_ino, get_dirty_pages(inode));
+ f2fs_warn(F2FS_I_SB(inode), "Unexpected flush for atomic writes: ino=%lu, npages=%u",
+ inode->i_ino, get_dirty_pages(inode));
ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX);
if (ret) {
up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
goto out;
}
+ spin_lock(&sbi->inode_lock[ATOMIC_FILE]);
+ if (list_empty(&fi->inmem_ilist))
+ list_add_tail(&fi->inmem_ilist, &sbi->inode_list[ATOMIC_FILE]);
+ sbi->atomic_files++;
+ spin_unlock(&sbi->inode_lock[ATOMIC_FILE]);
+
+ /* add inode in inmem_list first and set atomic_file */
set_inode_flag(inode, FI_ATOMIC_FILE);
clear_inode_flag(inode, FI_ATOMIC_REVOKE_REQUEST);
up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
F2FS_I(inode)->inmem_task = current;
- stat_inc_atomic_write(inode);
stat_update_max_atomic_write(inode);
out:
inode_unlock(inode);
@@ -1790,11 +2124,8 @@ static int f2fs_ioc_commit_atomic_write(struct file *filp)
goto err_out;
ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 0, true);
- if (!ret) {
- clear_inode_flag(inode, FI_ATOMIC_FILE);
- F2FS_I(inode)->i_gc_failures[GC_FAILURE_ATOMIC] = 0;
- stat_dec_atomic_write(inode);
- }
+ if (!ret)
+ f2fs_drop_inmem_pages(inode);
} else {
ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 1, false);
}
@@ -1919,8 +2250,15 @@ static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg)
if (in != F2FS_GOING_DOWN_FULLSYNC) {
ret = mnt_want_write_file(filp);
- if (ret)
+ if (ret) {
+ if (ret == -EROFS) {
+ ret = 0;
+ f2fs_stop_checkpoint(sbi, false);
+ set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
+ trace_f2fs_shutdown(sbi, in, ret);
+ }
return ret;
+ }
}
switch (in) {
@@ -1953,6 +2291,13 @@ static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg)
f2fs_stop_checkpoint(sbi, false);
set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
break;
+ case F2FS_GOING_DOWN_NEED_FSCK:
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
+ set_sbi_flag(sbi, SBI_CP_DISABLED_QUICK);
+ set_sbi_flag(sbi, SBI_IS_DIRTY);
+ /* do checkpoint only */
+ ret = f2fs_sync_fs(sb, 1);
+ goto out;
default:
ret = -EINVAL;
goto out;
@@ -1968,6 +2313,9 @@ static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg)
out:
if (in != F2FS_GOING_DOWN_FULLSYNC)
mnt_drop_write_file(filp);
+
+ trace_f2fs_shutdown(sbi, in, ret);
+
return ret;
}
@@ -2021,7 +2369,7 @@ static int f2fs_ioc_set_encryption_policy(struct file *filp, unsigned long arg)
{
struct inode *inode = file_inode(filp);
- if (!f2fs_sb_has_encrypt(inode->i_sb))
+ if (!f2fs_sb_has_encrypt(F2FS_I_SB(inode)))
return -EOPNOTSUPP;
f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
@@ -2031,7 +2379,7 @@ static int f2fs_ioc_set_encryption_policy(struct file *filp, unsigned long arg)
static int f2fs_ioc_get_encryption_policy(struct file *filp, unsigned long arg)
{
- if (!f2fs_sb_has_encrypt(file_inode(filp)->i_sb))
+ if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
return -EOPNOTSUPP;
return fscrypt_ioctl_get_policy(filp, (void __user *)arg);
}
@@ -2042,7 +2390,7 @@ static int f2fs_ioc_get_encryption_pwsalt(struct file *filp, unsigned long arg)
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
int err;
- if (!f2fs_sb_has_encrypt(inode->i_sb))
+ if (!f2fs_sb_has_encrypt(sbi))
return -EOPNOTSUPP;
err = mnt_want_write_file(filp);
@@ -2073,6 +2421,57 @@ static int f2fs_ioc_get_encryption_pwsalt(struct file *filp, unsigned long arg)
return err;
}
+static int f2fs_ioc_get_encryption_policy_ex(struct file *filp,
+ unsigned long arg)
+{
+ if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
+ return -EOPNOTSUPP;
+
+ return fscrypt_ioctl_get_policy_ex(filp, (void __user *)arg);
+}
+
+static int f2fs_ioc_add_encryption_key(struct file *filp, unsigned long arg)
+{
+ if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
+ return -EOPNOTSUPP;
+
+ return fscrypt_ioctl_add_key(filp, (void __user *)arg);
+}
+
+static int f2fs_ioc_remove_encryption_key(struct file *filp, unsigned long arg)
+{
+ if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
+ return -EOPNOTSUPP;
+
+ return fscrypt_ioctl_remove_key(filp, (void __user *)arg);
+}
+
+static int f2fs_ioc_remove_encryption_key_all_users(struct file *filp,
+ unsigned long arg)
+{
+ if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
+ return -EOPNOTSUPP;
+
+ return fscrypt_ioctl_remove_key_all_users(filp, (void __user *)arg);
+}
+
+static int f2fs_ioc_get_encryption_key_status(struct file *filp,
+ unsigned long arg)
+{
+ if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
+ return -EOPNOTSUPP;
+
+ return fscrypt_ioctl_get_key_status(filp, (void __user *)arg);
+}
+
+static int f2fs_ioc_get_encryption_nonce(struct file *filp, unsigned long arg)
+{
+ if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
+ return -EOPNOTSUPP;
+
+ return fscrypt_ioctl_get_nonce(filp, (void __user *)arg);
+}
+
static int f2fs_ioc_gc(struct file *filp, unsigned long arg)
{
struct inode *inode = file_inode(filp);
@@ -2094,12 +2493,12 @@ static int f2fs_ioc_gc(struct file *filp, unsigned long arg)
return ret;
if (!sync) {
- if (!mutex_trylock(&sbi->gc_mutex)) {
+ if (!down_write_trylock(&sbi->gc_lock)) {
ret = -EBUSY;
goto out;
}
} else {
- mutex_lock(&sbi->gc_mutex);
+ down_write(&sbi->gc_lock);
}
ret = f2fs_gc(sbi, sync, true, NULL_SEGNO);
@@ -2127,9 +2526,9 @@ static int f2fs_ioc_gc_range(struct file *filp, unsigned long arg)
return -EROFS;
end = range.start + range.len;
- if (range.start < MAIN_BLKADDR(sbi) || end >= MAX_BLKADDR(sbi)) {
+ if (end < range.start || range.start < MAIN_BLKADDR(sbi) ||
+ end >= MAX_BLKADDR(sbi))
return -EINVAL;
- }
ret = mnt_want_write_file(filp);
if (ret)
@@ -2137,12 +2536,12 @@ static int f2fs_ioc_gc_range(struct file *filp, unsigned long arg)
do_more:
if (!range.sync) {
- if (!mutex_trylock(&sbi->gc_mutex)) {
+ if (!down_write_trylock(&sbi->gc_lock)) {
ret = -EBUSY;
goto out;
}
} else {
- mutex_lock(&sbi->gc_mutex);
+ down_write(&sbi->gc_lock);
}
ret = f2fs_gc(sbi, range.sync, true, GET_SEGNO(sbi, range.start));
@@ -2166,6 +2565,11 @@ static int f2fs_ioc_write_checkpoint(struct file *filp, unsigned long arg)
if (f2fs_readonly(sbi->sb))
return -EROFS;
+ if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
+ f2fs_info(sbi, "Skipping Checkpoint. Checkpoints currently disabled.");
+ return -EINVAL;
+ }
+
ret = mnt_want_write_file(filp);
if (ret)
return ret;
@@ -2182,7 +2586,8 @@ static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
{
struct inode *inode = file_inode(filp);
struct f2fs_map_blocks map = { .m_next_extent = NULL,
- .m_seg_type = NO_CHECK_TYPE };
+ .m_seg_type = NO_CHECK_TYPE ,
+ .m_may_create = false };
struct extent_info ei = {0, 0, 0};
pgoff_t pg_start, pg_end, next_pgofs;
unsigned int blk_per_seg = sbi->blocks_per_seg;
@@ -2247,10 +2652,12 @@ static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
map.m_lblk += map.m_len;
}
- if (!fragmented)
+ if (!fragmented) {
+ total = 0;
goto out;
+ }
- sec_num = (total + BLKS_PER_SEC(sbi) - 1) / BLKS_PER_SEC(sbi);
+ sec_num = DIV_ROUND_UP(total, BLKS_PER_SEC(sbi));
/*
* make sure there are enough free section for LFS allocation, this can
@@ -2278,7 +2685,7 @@ static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
if (!(map.m_flags & F2FS_MAP_FLAGS)) {
map.m_lblk = next_pgofs;
- continue;
+ goto check;
}
set_inode_flag(inode, FI_DO_DEFRAG);
@@ -2302,8 +2709,8 @@ static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
}
map.m_lblk = idx;
-
- if (idx < pg_end && cnt < blk_per_seg)
+check:
+ if (map.m_lblk < pg_end && cnt < blk_per_seg)
goto do_map;
clear_inode_flag(inode, FI_DO_DEFRAG);
@@ -2387,7 +2794,7 @@ static int f2fs_move_file_range(struct file *file_in, loff_t pos_in,
if (!S_ISREG(src->i_mode) || !S_ISREG(dst->i_mode))
return -EINVAL;
- if (f2fs_encrypted_inode(src) || f2fs_encrypted_inode(dst))
+ if (IS_ENCRYPTED(src) || IS_ENCRYPTED(dst))
return -EOPNOTSUPP;
if (src == dst) {
@@ -2537,16 +2944,17 @@ static int f2fs_ioc_flush_device(struct file *filp, unsigned long arg)
if (f2fs_readonly(sbi->sb))
return -EROFS;
+ if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
+ return -EINVAL;
+
if (copy_from_user(&range, (struct f2fs_flush_device __user *)arg,
sizeof(range)))
return -EFAULT;
if (!f2fs_is_multi_device(sbi) || sbi->s_ndevs - 1 <= range.dev_num ||
- sbi->segs_per_sec != 1) {
- f2fs_msg(sbi->sb, KERN_WARNING,
- "Can't flush %u in %d for segs_per_sec %u != 1\n",
- range.dev_num, sbi->s_ndevs,
- sbi->segs_per_sec);
+ __is_large_section(sbi)) {
+ f2fs_warn(sbi, "Can't flush %u in %d for segs_per_sec %u != 1",
+ range.dev_num, sbi->s_ndevs, sbi->segs_per_sec);
return -EINVAL;
}
@@ -2564,7 +2972,7 @@ static int f2fs_ioc_flush_device(struct file *filp, unsigned long arg)
end_segno = min(start_segno + range.segments, dev_end_segno);
while (start_segno < end_segno) {
- if (!mutex_trylock(&sbi->gc_mutex)) {
+ if (!down_write_trylock(&sbi->gc_lock)) {
ret = -EBUSY;
goto out;
}
@@ -2595,18 +3003,33 @@ static int f2fs_ioc_get_features(struct file *filp, unsigned long arg)
}
#ifdef CONFIG_QUOTA
+int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid)
+{
+ struct dquot *transfer_to[MAXQUOTAS] = {};
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+ struct super_block *sb = sbi->sb;
+ int err = 0;
+
+ transfer_to[PRJQUOTA] = dqget(sb, make_kqid_projid(kprojid));
+ if (!IS_ERR(transfer_to[PRJQUOTA])) {
+ err = __dquot_transfer(inode, transfer_to);
+ if (err)
+ set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
+ dqput(transfer_to[PRJQUOTA]);
+ }
+ return err;
+}
+
static int f2fs_ioc_setproject(struct file *filp, __u32 projid)
{
struct inode *inode = file_inode(filp);
struct f2fs_inode_info *fi = F2FS_I(inode);
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
- struct super_block *sb = sbi->sb;
- struct dquot *transfer_to[MAXQUOTAS] = {};
struct page *ipage;
kprojid_t kprojid;
int err;
- if (!f2fs_sb_has_project_quota(sb)) {
+ if (!f2fs_sb_has_project_quota(sbi)) {
if (projid != F2FS_DEF_PROJID)
return -EOPNOTSUPP;
else
@@ -2642,21 +3065,24 @@ static int f2fs_ioc_setproject(struct file *filp, __u32 projid)
if (err)
return err;
- transfer_to[PRJQUOTA] = dqget(sb, make_kqid_projid(kprojid));
- if (!IS_ERR(transfer_to[PRJQUOTA])) {
- err = __dquot_transfer(inode, transfer_to);
- dqput(transfer_to[PRJQUOTA]);
- if (err)
- goto out_dirty;
- }
+ f2fs_lock_op(sbi);
+ err = f2fs_transfer_project_quota(inode, kprojid);
+ if (err)
+ goto out_unlock;
F2FS_I(inode)->i_projid = kprojid;
inode->i_ctime = current_time(inode);
-out_dirty:
f2fs_mark_inode_dirty_sync(inode, true);
+out_unlock:
+ f2fs_unlock_op(sbi);
return err;
}
#else
+int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid)
+{
+ return 0;
+}
+
static int f2fs_ioc_setproject(struct file *filp, __u32 projid)
{
if (projid != F2FS_DEF_PROJID)
@@ -2665,100 +3091,87 @@ static int f2fs_ioc_setproject(struct file *filp, __u32 projid)
}
#endif
-/* Transfer internal flags to xflags */
-static inline __u32 f2fs_iflags_to_xflags(unsigned long iflags)
-{
- __u32 xflags = 0;
+/* FS_IOC_FSGETXATTR and FS_IOC_FSSETXATTR support */
- if (iflags & F2FS_SYNC_FL)
- xflags |= FS_XFLAG_SYNC;
- if (iflags & F2FS_IMMUTABLE_FL)
- xflags |= FS_XFLAG_IMMUTABLE;
- if (iflags & F2FS_APPEND_FL)
- xflags |= FS_XFLAG_APPEND;
- if (iflags & F2FS_NODUMP_FL)
- xflags |= FS_XFLAG_NODUMP;
- if (iflags & F2FS_NOATIME_FL)
- xflags |= FS_XFLAG_NOATIME;
- if (iflags & F2FS_PROJINHERIT_FL)
- xflags |= FS_XFLAG_PROJINHERIT;
+/*
+ * To make a new on-disk f2fs i_flag gettable via FS_IOC_FSGETXATTR and settable
+ * via FS_IOC_FSSETXATTR, add an entry for it to f2fs_xflags_map[], and add its
+ * FS_XFLAG_* equivalent to F2FS_SUPPORTED_XFLAGS.
+ */
+
+static const struct {
+ u32 iflag;
+ u32 xflag;
+} f2fs_xflags_map[] = {
+ { F2FS_SYNC_FL, FS_XFLAG_SYNC },
+ { F2FS_IMMUTABLE_FL, FS_XFLAG_IMMUTABLE },
+ { F2FS_APPEND_FL, FS_XFLAG_APPEND },
+ { F2FS_NODUMP_FL, FS_XFLAG_NODUMP },
+ { F2FS_NOATIME_FL, FS_XFLAG_NOATIME },
+ { F2FS_PROJINHERIT_FL, FS_XFLAG_PROJINHERIT },
+};
+
+#define F2FS_SUPPORTED_XFLAGS ( \
+ FS_XFLAG_SYNC | \
+ FS_XFLAG_IMMUTABLE | \
+ FS_XFLAG_APPEND | \
+ FS_XFLAG_NODUMP | \
+ FS_XFLAG_NOATIME | \
+ FS_XFLAG_PROJINHERIT)
+
+/* Convert f2fs on-disk i_flags to FS_IOC_FS{GET,SET}XATTR flags */
+static inline u32 f2fs_iflags_to_xflags(u32 iflags)
+{
+ u32 xflags = 0;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(f2fs_xflags_map); i++)
+ if (iflags & f2fs_xflags_map[i].iflag)
+ xflags |= f2fs_xflags_map[i].xflag;
+
return xflags;
}
-#define F2FS_SUPPORTED_FS_XFLAGS (FS_XFLAG_SYNC | FS_XFLAG_IMMUTABLE | \
- FS_XFLAG_APPEND | FS_XFLAG_NODUMP | \
- FS_XFLAG_NOATIME | FS_XFLAG_PROJINHERIT)
-
-/* Transfer xflags flags to internal */
-static inline unsigned long f2fs_xflags_to_iflags(__u32 xflags)
+/* Convert FS_IOC_FS{GET,SET}XATTR flags to f2fs on-disk i_flags */
+static inline u32 f2fs_xflags_to_iflags(u32 xflags)
{
- unsigned long iflags = 0;
+ u32 iflags = 0;
+ int i;
- if (xflags & FS_XFLAG_SYNC)
- iflags |= F2FS_SYNC_FL;
- if (xflags & FS_XFLAG_IMMUTABLE)
- iflags |= F2FS_IMMUTABLE_FL;
- if (xflags & FS_XFLAG_APPEND)
- iflags |= F2FS_APPEND_FL;
- if (xflags & FS_XFLAG_NODUMP)
- iflags |= F2FS_NODUMP_FL;
- if (xflags & FS_XFLAG_NOATIME)
- iflags |= F2FS_NOATIME_FL;
- if (xflags & FS_XFLAG_PROJINHERIT)
- iflags |= F2FS_PROJINHERIT_FL;
+ for (i = 0; i < ARRAY_SIZE(f2fs_xflags_map); i++)
+ if (xflags & f2fs_xflags_map[i].xflag)
+ iflags |= f2fs_xflags_map[i].iflag;
return iflags;
}
+static void f2fs_fill_fsxattr(struct inode *inode, struct fsxattr *fa)
+{
+ struct f2fs_inode_info *fi = F2FS_I(inode);
+
+ simple_fill_fsxattr(fa, f2fs_iflags_to_xflags(fi->i_flags));
+
+ if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)))
+ fa->fsx_projid = from_kprojid(&init_user_ns, fi->i_projid);
+}
+
static int f2fs_ioc_fsgetxattr(struct file *filp, unsigned long arg)
{
struct inode *inode = file_inode(filp);
- struct f2fs_inode_info *fi = F2FS_I(inode);
struct fsxattr fa;
- memset(&fa, 0, sizeof(struct fsxattr));
- fa.fsx_xflags = f2fs_iflags_to_xflags(fi->i_flags &
- F2FS_FL_USER_VISIBLE);
-
- if (f2fs_sb_has_project_quota(inode->i_sb))
- fa.fsx_projid = (__u32)from_kprojid(&init_user_ns,
- fi->i_projid);
+ f2fs_fill_fsxattr(inode, &fa);
if (copy_to_user((struct fsxattr __user *)arg, &fa, sizeof(fa)))
return -EFAULT;
return 0;
}
-static int f2fs_ioctl_check_project(struct inode *inode, struct fsxattr *fa)
-{
- /*
- * Project Quota ID state is only allowed to change from within the init
- * namespace. Enforce that restriction only if we are trying to change
- * the quota ID state. Everything else is allowed in user namespaces.
- */
- if (current_user_ns() == &init_user_ns)
- return 0;
-
- if (__kprojid_val(F2FS_I(inode)->i_projid) != fa->fsx_projid)
- return -EINVAL;
-
- if (F2FS_I(inode)->i_flags & F2FS_PROJINHERIT_FL) {
- if (!(fa->fsx_xflags & FS_XFLAG_PROJINHERIT))
- return -EINVAL;
- } else {
- if (fa->fsx_xflags & FS_XFLAG_PROJINHERIT)
- return -EINVAL;
- }
-
- return 0;
-}
-
static int f2fs_ioc_fssetxattr(struct file *filp, unsigned long arg)
{
struct inode *inode = file_inode(filp);
- struct f2fs_inode_info *fi = F2FS_I(inode);
- struct fsxattr fa;
- unsigned int flags;
+ struct fsxattr fa, old_fa;
+ u32 iflags;
int err;
if (copy_from_user(&fa, (struct fsxattr __user *)arg, sizeof(fa)))
@@ -2768,11 +3181,11 @@ static int f2fs_ioc_fssetxattr(struct file *filp, unsigned long arg)
if (!inode_owner_or_capable(inode))
return -EACCES;
- if (fa.fsx_xflags & ~F2FS_SUPPORTED_FS_XFLAGS)
+ if (fa.fsx_xflags & ~F2FS_SUPPORTED_XFLAGS)
return -EOPNOTSUPP;
- flags = f2fs_xflags_to_iflags(fa.fsx_xflags);
- if (f2fs_mask_flags(inode->i_mode, flags) != flags)
+ iflags = f2fs_xflags_to_iflags(fa.fsx_xflags);
+ if (f2fs_mask_flags(inode->i_mode, iflags) != iflags)
return -EOPNOTSUPP;
err = mnt_want_write_file(filp);
@@ -2780,12 +3193,14 @@ static int f2fs_ioc_fssetxattr(struct file *filp, unsigned long arg)
return err;
inode_lock(inode);
- err = f2fs_ioctl_check_project(inode, &fa);
+
+ f2fs_fill_fsxattr(inode, &old_fa);
+ err = vfs_ioc_fssetxattr_check(inode, &old_fa, &fa);
if (err)
goto out;
- flags = (fi->i_flags & ~F2FS_FL_XFLAG_VISIBLE) |
- (flags & F2FS_FL_XFLAG_VISIBLE);
- err = __f2fs_ioc_setflags(inode, flags);
+
+ err = f2fs_setflags_common(inode, iflags,
+ f2fs_xflags_to_iflags(F2FS_SUPPORTED_XFLAGS));
if (err)
goto out;
@@ -2807,10 +3222,9 @@ int f2fs_pin_file_control(struct inode *inode, bool inc)
fi->i_gc_failures[GC_FAILURE_PIN] + 1);
if (fi->i_gc_failures[GC_FAILURE_PIN] > sbi->gc_pin_file_threshold) {
- f2fs_msg(sbi->sb, KERN_WARNING,
- "%s: Enable GC = ino %lx after %x GC trials\n",
- __func__, inode->i_ino,
- fi->i_gc_failures[GC_FAILURE_PIN]);
+ f2fs_warn(sbi, "%s: Enable GC = ino %lx after %x GC trials",
+ __func__, inode->i_ino,
+ fi->i_gc_failures[GC_FAILURE_PIN]);
clear_inode_flag(inode, FI_PIN_FILE);
return -EAGAIN;
}
@@ -2823,9 +3237,6 @@ static int f2fs_ioc_set_pin_file(struct file *filp, unsigned long arg)
__u32 pin;
int ret = 0;
- if (!inode_owner_or_capable(inode))
- return -EACCES;
-
if (get_user(pin, (__u32 __user *)arg))
return -EFAULT;
@@ -2856,10 +3267,16 @@ static int f2fs_ioc_set_pin_file(struct file *filp, unsigned long arg)
ret = -EAGAIN;
goto out;
}
+
ret = f2fs_convert_inline_inode(inode);
if (ret)
goto out;
+ if (f2fs_disable_compressed_file(inode)) {
+ ret = -EOPNOTSUPP;
+ goto out;
+ }
+
set_inode_flag(inode, FI_PIN_FILE);
ret = F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN];
done:
@@ -2895,6 +3312,7 @@ int f2fs_precache_extents(struct inode *inode)
map.m_next_pgofs = NULL;
map.m_next_extent = &m_next_extent;
map.m_seg_type = NO_CHECK_TYPE;
+ map.m_may_create = false;
end = F2FS_I_SB(inode)->max_file_blocks;
while (map.m_lblk < end) {
@@ -2917,10 +3335,451 @@ static int f2fs_ioc_precache_extents(struct file *filp, unsigned long arg)
return f2fs_precache_extents(file_inode(filp));
}
+static int f2fs_ioc_resize_fs(struct file *filp, unsigned long arg)
+{
+ struct f2fs_sb_info *sbi = F2FS_I_SB(file_inode(filp));
+ __u64 block_count;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ if (f2fs_readonly(sbi->sb))
+ return -EROFS;
+
+ if (copy_from_user(&block_count, (void __user *)arg,
+ sizeof(block_count)))
+ return -EFAULT;
+
+ return f2fs_resize_fs(sbi, block_count);
+}
+
+static int f2fs_ioc_enable_verity(struct file *filp, unsigned long arg)
+{
+ struct inode *inode = file_inode(filp);
+
+ f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
+
+ if (!f2fs_sb_has_verity(F2FS_I_SB(inode))) {
+ f2fs_warn(F2FS_I_SB(inode),
+ "Can't enable fs-verity on inode %lu: the verity feature is not enabled on this filesystem.\n",
+ inode->i_ino);
+ return -EOPNOTSUPP;
+ }
+
+ return fsverity_ioctl_enable(filp, (const void __user *)arg);
+}
+
+static int f2fs_ioc_measure_verity(struct file *filp, unsigned long arg)
+{
+ if (!f2fs_sb_has_verity(F2FS_I_SB(file_inode(filp))))
+ return -EOPNOTSUPP;
+
+ return fsverity_ioctl_measure(filp, (void __user *)arg);
+}
+
+static int f2fs_get_volume_name(struct file *filp, unsigned long arg)
+{
+ struct inode *inode = file_inode(filp);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+ char *vbuf;
+ int count;
+ int err = 0;
+
+ vbuf = f2fs_kzalloc(sbi, MAX_VOLUME_NAME, GFP_KERNEL);
+ if (!vbuf)
+ return -ENOMEM;
+
+ down_read(&sbi->sb_lock);
+ count = utf16s_to_utf8s(sbi->raw_super->volume_name,
+ ARRAY_SIZE(sbi->raw_super->volume_name),
+ UTF16_LITTLE_ENDIAN, vbuf, MAX_VOLUME_NAME);
+ up_read(&sbi->sb_lock);
+
+ if (copy_to_user((char __user *)arg, vbuf,
+ min(FSLABEL_MAX, count)))
+ err = -EFAULT;
+
+ kvfree(vbuf);
+ return err;
+}
+
+static int f2fs_set_volume_name(struct file *filp, unsigned long arg)
+{
+ struct inode *inode = file_inode(filp);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+ char *vbuf;
+ int err = 0;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ vbuf = strndup_user((const char __user *)arg, FSLABEL_MAX);
+ if (IS_ERR(vbuf))
+ return PTR_ERR(vbuf);
+
+ err = mnt_want_write_file(filp);
+ if (err)
+ goto out;
+
+ down_write(&sbi->sb_lock);
+
+ memset(sbi->raw_super->volume_name, 0,
+ sizeof(sbi->raw_super->volume_name));
+ utf8s_to_utf16s(vbuf, strlen(vbuf), UTF16_LITTLE_ENDIAN,
+ sbi->raw_super->volume_name,
+ ARRAY_SIZE(sbi->raw_super->volume_name));
+
+ err = f2fs_commit_super(sbi, false);
+
+ up_write(&sbi->sb_lock);
+
+ mnt_drop_write_file(filp);
+out:
+ kfree(vbuf);
+ return err;
+}
+
+static int f2fs_get_compress_blocks(struct file *filp, unsigned long arg)
+{
+ struct inode *inode = file_inode(filp);
+ __u64 blocks;
+
+ if (!f2fs_sb_has_compression(F2FS_I_SB(inode)))
+ return -EOPNOTSUPP;
+
+ if (!f2fs_compressed_file(inode))
+ return -EINVAL;
+
+ blocks = F2FS_I(inode)->i_compr_blocks;
+ return put_user(blocks, (u64 __user *)arg);
+}
+
+static int release_compress_blocks(struct dnode_of_data *dn, pgoff_t count)
+{
+ struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
+ unsigned int released_blocks = 0;
+ int cluster_size = F2FS_I(dn->inode)->i_cluster_size;
+ block_t blkaddr;
+ int i;
+
+ for (i = 0; i < count; i++) {
+ blkaddr = data_blkaddr(dn->inode, dn->node_page,
+ dn->ofs_in_node + i);
+
+ if (!__is_valid_data_blkaddr(blkaddr))
+ continue;
+ if (unlikely(!f2fs_is_valid_blkaddr(sbi, blkaddr,
+ DATA_GENERIC_ENHANCE)))
+ return -EFSCORRUPTED;
+ }
+
+ while (count) {
+ int compr_blocks = 0;
+
+ for (i = 0; i < cluster_size; i++, dn->ofs_in_node++) {
+ blkaddr = f2fs_data_blkaddr(dn);
+
+ if (i == 0) {
+ if (blkaddr == COMPRESS_ADDR)
+ continue;
+ dn->ofs_in_node += cluster_size;
+ goto next;
+ }
+
+ if (__is_valid_data_blkaddr(blkaddr))
+ compr_blocks++;
+
+ if (blkaddr != NEW_ADDR)
+ continue;
+
+ dn->data_blkaddr = NULL_ADDR;
+ f2fs_set_data_blkaddr(dn);
+ }
+
+ f2fs_i_compr_blocks_update(dn->inode, compr_blocks, false);
+ dec_valid_block_count(sbi, dn->inode,
+ cluster_size - compr_blocks);
+
+ released_blocks += cluster_size - compr_blocks;
+next:
+ count -= cluster_size;
+ }
+
+ return released_blocks;
+}
+
+static int f2fs_release_compress_blocks(struct file *filp, unsigned long arg)
+{
+ struct inode *inode = file_inode(filp);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+ pgoff_t page_idx = 0, last_idx;
+ unsigned int released_blocks = 0;
+ int ret;
+ int writecount;
+
+ if (!f2fs_sb_has_compression(F2FS_I_SB(inode)))
+ return -EOPNOTSUPP;
+
+ if (!f2fs_compressed_file(inode))
+ return -EINVAL;
+
+ if (f2fs_readonly(sbi->sb))
+ return -EROFS;
+
+ ret = mnt_want_write_file(filp);
+ if (ret)
+ return ret;
+
+ f2fs_balance_fs(F2FS_I_SB(inode), true);
+
+ inode_lock(inode);
+
+ writecount = atomic_read(&inode->i_writecount);
+ if ((filp->f_mode & FMODE_WRITE && writecount != 1) || writecount) {
+ ret = -EBUSY;
+ goto out;
+ }
+
+ if (IS_IMMUTABLE(inode)) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX);
+ if (ret)
+ goto out;
+
+ if (!F2FS_I(inode)->i_compr_blocks)
+ goto out;
+
+ F2FS_I(inode)->i_flags |= F2FS_IMMUTABLE_FL;
+ f2fs_set_inode_flags(inode);
+ inode->i_ctime = current_time(inode);
+ f2fs_mark_inode_dirty_sync(inode, true);
+
+ down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+ down_write(&F2FS_I(inode)->i_mmap_sem);
+
+ last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
+
+ while (page_idx < last_idx) {
+ struct dnode_of_data dn;
+ pgoff_t end_offset, count;
+
+ set_new_dnode(&dn, inode, NULL, NULL, 0);
+ ret = f2fs_get_dnode_of_data(&dn, page_idx, LOOKUP_NODE);
+ if (ret) {
+ if (ret == -ENOENT) {
+ page_idx = f2fs_get_next_page_offset(&dn,
+ page_idx);
+ ret = 0;
+ continue;
+ }
+ break;
+ }
+
+ end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
+ count = min(end_offset - dn.ofs_in_node, last_idx - page_idx);
+ count = round_up(count, F2FS_I(inode)->i_cluster_size);
+
+ ret = release_compress_blocks(&dn, count);
+
+ f2fs_put_dnode(&dn);
+
+ if (ret < 0)
+ break;
+
+ page_idx += count;
+ released_blocks += ret;
+ }
+
+ up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+ up_write(&F2FS_I(inode)->i_mmap_sem);
+out:
+ inode_unlock(inode);
+
+ mnt_drop_write_file(filp);
+
+ if (ret >= 0) {
+ ret = put_user(released_blocks, (u64 __user *)arg);
+ } else if (released_blocks && F2FS_I(inode)->i_compr_blocks) {
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
+ f2fs_warn(sbi, "%s: partial blocks were released i_ino=%lx "
+ "iblocks=%llu, released=%u, compr_blocks=%llu, "
+ "run fsck to fix.",
+ __func__, inode->i_ino, (u64)inode->i_blocks,
+ released_blocks,
+ F2FS_I(inode)->i_compr_blocks);
+ }
+
+ return ret;
+}
+
+static int reserve_compress_blocks(struct dnode_of_data *dn, pgoff_t count)
+{
+ struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
+ unsigned int reserved_blocks = 0;
+ int cluster_size = F2FS_I(dn->inode)->i_cluster_size;
+ block_t blkaddr;
+ int i;
+
+ for (i = 0; i < count; i++) {
+ blkaddr = data_blkaddr(dn->inode, dn->node_page,
+ dn->ofs_in_node + i);
+
+ if (!__is_valid_data_blkaddr(blkaddr))
+ continue;
+ if (unlikely(!f2fs_is_valid_blkaddr(sbi, blkaddr,
+ DATA_GENERIC_ENHANCE)))
+ return -EFSCORRUPTED;
+ }
+
+ while (count) {
+ int compr_blocks = 0;
+ blkcnt_t reserved;
+ int ret;
+
+ for (i = 0; i < cluster_size; i++, dn->ofs_in_node++) {
+ blkaddr = f2fs_data_blkaddr(dn);
+
+ if (i == 0) {
+ if (blkaddr == COMPRESS_ADDR)
+ continue;
+ dn->ofs_in_node += cluster_size;
+ goto next;
+ }
+
+ if (__is_valid_data_blkaddr(blkaddr)) {
+ compr_blocks++;
+ continue;
+ }
+
+ dn->data_blkaddr = NEW_ADDR;
+ f2fs_set_data_blkaddr(dn);
+ }
+
+ reserved = cluster_size - compr_blocks;
+ ret = inc_valid_block_count(sbi, dn->inode, &reserved);
+ if (ret)
+ return ret;
+
+ if (reserved != cluster_size - compr_blocks)
+ return -ENOSPC;
+
+ f2fs_i_compr_blocks_update(dn->inode, compr_blocks, true);
+
+ reserved_blocks += reserved;
+next:
+ count -= cluster_size;
+ }
+
+ return reserved_blocks;
+}
+
+static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg)
+{
+ struct inode *inode = file_inode(filp);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+ pgoff_t page_idx = 0, last_idx;
+ unsigned int reserved_blocks = 0;
+ int ret;
+
+ if (!f2fs_sb_has_compression(F2FS_I_SB(inode)))
+ return -EOPNOTSUPP;
+
+ if (!f2fs_compressed_file(inode))
+ return -EINVAL;
+
+ if (f2fs_readonly(sbi->sb))
+ return -EROFS;
+
+ ret = mnt_want_write_file(filp);
+ if (ret)
+ return ret;
+
+ if (F2FS_I(inode)->i_compr_blocks)
+ goto out;
+
+ f2fs_balance_fs(F2FS_I_SB(inode), true);
+
+ inode_lock(inode);
+
+ if (!IS_IMMUTABLE(inode)) {
+ ret = -EINVAL;
+ goto unlock_inode;
+ }
+
+ down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+ down_write(&F2FS_I(inode)->i_mmap_sem);
+
+ last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
+
+ while (page_idx < last_idx) {
+ struct dnode_of_data dn;
+ pgoff_t end_offset, count;
+
+ set_new_dnode(&dn, inode, NULL, NULL, 0);
+ ret = f2fs_get_dnode_of_data(&dn, page_idx, LOOKUP_NODE);
+ if (ret) {
+ if (ret == -ENOENT) {
+ page_idx = f2fs_get_next_page_offset(&dn,
+ page_idx);
+ ret = 0;
+ continue;
+ }
+ break;
+ }
+
+ end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
+ count = min(end_offset - dn.ofs_in_node, last_idx - page_idx);
+ count = round_up(count, F2FS_I(inode)->i_cluster_size);
+
+ ret = reserve_compress_blocks(&dn, count);
+
+ f2fs_put_dnode(&dn);
+
+ if (ret < 0)
+ break;
+
+ page_idx += count;
+ reserved_blocks += ret;
+ }
+
+ up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+ up_write(&F2FS_I(inode)->i_mmap_sem);
+
+ if (ret >= 0) {
+ F2FS_I(inode)->i_flags &= ~F2FS_IMMUTABLE_FL;
+ f2fs_set_inode_flags(inode);
+ inode->i_ctime = current_time(inode);
+ f2fs_mark_inode_dirty_sync(inode, true);
+ }
+unlock_inode:
+ inode_unlock(inode);
+out:
+ mnt_drop_write_file(filp);
+
+ if (ret >= 0) {
+ ret = put_user(reserved_blocks, (u64 __user *)arg);
+ } else if (reserved_blocks && F2FS_I(inode)->i_compr_blocks) {
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
+ f2fs_warn(sbi, "%s: partial blocks were released i_ino=%lx "
+ "iblocks=%llu, reserved=%u, compr_blocks=%llu, "
+ "run fsck to fix.",
+ __func__, inode->i_ino, (u64)inode->i_blocks,
+ reserved_blocks,
+ F2FS_I(inode)->i_compr_blocks);
+ }
+
+ return ret;
+}
+
long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(filp)))))
return -EIO;
+ if (!f2fs_is_checkpoint_ready(F2FS_I_SB(file_inode(filp))))
+ return -ENOSPC;
switch (cmd) {
case F2FS_IOC_GETFLAGS:
@@ -2949,6 +3808,18 @@ long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
return f2fs_ioc_get_encryption_policy(filp, arg);
case F2FS_IOC_GET_ENCRYPTION_PWSALT:
return f2fs_ioc_get_encryption_pwsalt(filp, arg);
+ case FS_IOC_GET_ENCRYPTION_POLICY_EX:
+ return f2fs_ioc_get_encryption_policy_ex(filp, arg);
+ case FS_IOC_ADD_ENCRYPTION_KEY:
+ return f2fs_ioc_add_encryption_key(filp, arg);
+ case FS_IOC_REMOVE_ENCRYPTION_KEY:
+ return f2fs_ioc_remove_encryption_key(filp, arg);
+ case FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS:
+ return f2fs_ioc_remove_encryption_key_all_users(filp, arg);
+ case FS_IOC_GET_ENCRYPTION_KEY_STATUS:
+ return f2fs_ioc_get_encryption_key_status(filp, arg);
+ case FS_IOC_GET_ENCRYPTION_NONCE:
+ return f2fs_ioc_get_encryption_nonce(filp, arg);
case F2FS_IOC_GARBAGE_COLLECT:
return f2fs_ioc_gc(filp, arg);
case F2FS_IOC_GARBAGE_COLLECT_RANGE:
@@ -2973,26 +3844,66 @@ long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
return f2fs_ioc_set_pin_file(filp, arg);
case F2FS_IOC_PRECACHE_EXTENTS:
return f2fs_ioc_precache_extents(filp, arg);
+ case F2FS_IOC_RESIZE_FS:
+ return f2fs_ioc_resize_fs(filp, arg);
+ case FS_IOC_ENABLE_VERITY:
+ return f2fs_ioc_enable_verity(filp, arg);
+ case FS_IOC_MEASURE_VERITY:
+ return f2fs_ioc_measure_verity(filp, arg);
+ case F2FS_IOC_GET_VOLUME_NAME:
+ return f2fs_get_volume_name(filp, arg);
+ case F2FS_IOC_SET_VOLUME_NAME:
+ return f2fs_set_volume_name(filp, arg);
+ case F2FS_IOC_GET_COMPRESS_BLOCKS:
+ return f2fs_get_compress_blocks(filp, arg);
+ case F2FS_IOC_RELEASE_COMPRESS_BLOCKS:
+ return f2fs_release_compress_blocks(filp, arg);
+ case F2FS_IOC_RESERVE_COMPRESS_BLOCKS:
+ return f2fs_reserve_compress_blocks(filp, arg);
default:
return -ENOTTY;
}
}
+static ssize_t f2fs_file_read_iter(struct kiocb *iocb, struct iov_iter *iter)
+{
+ struct file *file = iocb->ki_filp;
+ struct inode *inode = file_inode(file);
+ int ret;
+
+ if (!f2fs_is_compress_backend_ready(inode))
+ return -EOPNOTSUPP;
+
+ ret = generic_file_read_iter(iocb, iter);
+
+ if (ret > 0)
+ f2fs_update_iostat(F2FS_I_SB(inode), APP_READ_IO, ret);
+
+ return ret;
+}
+
static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
{
struct file *file = iocb->ki_filp;
struct inode *inode = file_inode(file);
ssize_t ret;
- if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
- return -EIO;
+ if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) {
+ ret = -EIO;
+ goto out;
+ }
- if ((iocb->ki_flags & IOCB_NOWAIT) && !(iocb->ki_flags & IOCB_DIRECT))
- return -EINVAL;
+ if (!f2fs_is_compress_backend_ready(inode)) {
+ ret = -EOPNOTSUPP;
+ goto out;
+ }
- if (!inode_trylock(inode)) {
- if (iocb->ki_flags & IOCB_NOWAIT)
- return -EAGAIN;
+ if (iocb->ki_flags & IOCB_NOWAIT) {
+ if (!inode_trylock(inode)) {
+ ret = -EAGAIN;
+ goto out;
+ }
+ } else {
inode_lock(inode);
}
@@ -3005,29 +3916,51 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
if (iov_iter_fault_in_readable(from, iov_iter_count(from)))
set_inode_flag(inode, FI_NO_PREALLOC);
- if ((iocb->ki_flags & IOCB_NOWAIT) &&
- (iocb->ki_flags & IOCB_DIRECT)) {
- if (!f2fs_overwrite_io(inode, iocb->ki_pos,
+ if ((iocb->ki_flags & IOCB_NOWAIT)) {
+ if (!f2fs_overwrite_io(inode, iocb->ki_pos,
iov_iter_count(from)) ||
- f2fs_has_inline_data(inode) ||
- f2fs_force_buffered_io(inode, WRITE)) {
- clear_inode_flag(inode,
- FI_NO_PREALLOC);
- inode_unlock(inode);
- return -EAGAIN;
- }
-
- } else {
- preallocated = true;
- target_size = iocb->ki_pos + iov_iter_count(from);
-
- err = f2fs_preallocate_blocks(iocb, from);
- if (err) {
+ f2fs_has_inline_data(inode) ||
+ f2fs_force_buffered_io(inode, iocb, from)) {
clear_inode_flag(inode, FI_NO_PREALLOC);
inode_unlock(inode);
- return err;
+ ret = -EAGAIN;
+ goto out;
}
+ goto write;
}
+
+ if (is_inode_flag_set(inode, FI_NO_PREALLOC))
+ goto write;
+
+ if (iocb->ki_flags & IOCB_DIRECT) {
+ /*
+ * Convert inline data for Direct I/O before entering
+ * f2fs_direct_IO().
+ */
+ err = f2fs_convert_inline_inode(inode);
+ if (err)
+ goto out_err;
+ /*
+ * If force_buffere_io() is true, we have to allocate
+ * blocks all the time, since f2fs_direct_IO will fall
+ * back to buffered IO.
+ */
+ if (!f2fs_force_buffered_io(inode, iocb, from) &&
+ allow_outplace_dio(inode, iocb, from))
+ goto write;
+ }
+ preallocated = true;
+ target_size = iocb->ki_pos + iov_iter_count(from);
+
+ err = f2fs_preallocate_blocks(iocb, from);
+ if (err) {
+out_err:
+ clear_inode_flag(inode, FI_NO_PREALLOC);
+ inode_unlock(inode);
+ ret = err;
+ goto out;
+ }
+write:
ret = __generic_file_write_iter(iocb, from);
clear_inode_flag(inode, FI_NO_PREALLOC);
@@ -3039,7 +3972,9 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
f2fs_update_iostat(F2FS_I_SB(inode), APP_WRITE_IO, ret);
}
inode_unlock(inode);
-
+out:
+ trace_f2fs_file_write_iter(inode, iocb->ki_pos,
+ iov_iter_count(from), ret);
if (ret > 0)
ret = generic_write_sync(iocb, ret);
return ret;
@@ -3067,6 +4002,12 @@ long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
case F2FS_IOC_SET_ENCRYPTION_POLICY:
case F2FS_IOC_GET_ENCRYPTION_PWSALT:
case F2FS_IOC_GET_ENCRYPTION_POLICY:
+ case FS_IOC_GET_ENCRYPTION_POLICY_EX:
+ case FS_IOC_ADD_ENCRYPTION_KEY:
+ case FS_IOC_REMOVE_ENCRYPTION_KEY:
+ case FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS:
+ case FS_IOC_GET_ENCRYPTION_KEY_STATUS:
+ case FS_IOC_GET_ENCRYPTION_NONCE:
case F2FS_IOC_GARBAGE_COLLECT:
case F2FS_IOC_GARBAGE_COLLECT_RANGE:
case F2FS_IOC_WRITE_CHECKPOINT:
@@ -3079,6 +4020,14 @@ long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
case F2FS_IOC_GET_PIN_FILE:
case F2FS_IOC_SET_PIN_FILE:
case F2FS_IOC_PRECACHE_EXTENTS:
+ case F2FS_IOC_RESIZE_FS:
+ case FS_IOC_ENABLE_VERITY:
+ case FS_IOC_MEASURE_VERITY:
+ case F2FS_IOC_GET_VOLUME_NAME:
+ case F2FS_IOC_SET_VOLUME_NAME:
+ case F2FS_IOC_GET_COMPRESS_BLOCKS:
+ case F2FS_IOC_RELEASE_COMPRESS_BLOCKS:
+ case F2FS_IOC_RESERVE_COMPRESS_BLOCKS:
break;
default:
return -ENOIOCTLCMD;
@@ -3089,7 +4038,7 @@ long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
const struct file_operations f2fs_file_operations = {
.llseek = f2fs_llseek,
- .read_iter = generic_file_read_iter,
+ .read_iter = f2fs_file_read_iter,
.write_iter = f2fs_file_write_iter,
.open = f2fs_file_open,
.release = f2fs_release_file,
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 38299cc..4a495627 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* fs/f2fs/gc.c
*
* Copyright (c) 2012 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/fs.h>
#include <linux/module.h>
@@ -16,6 +13,7 @@
#include <linux/kthread.h>
#include <linux/delay.h>
#include <linux/freezer.h>
+#include <linux/sched/signal.h>
#include "f2fs.h"
#include "node.h"
@@ -34,6 +32,8 @@ static int gc_thread_func(void *data)
set_freezable();
do {
+ bool sync_mode;
+
wait_event_interruptible_timeout(*wq,
kthread_should_stop() || freezing(current) ||
gc_th->gc_wake,
@@ -43,23 +43,28 @@ static int gc_thread_func(void *data)
if (gc_th->gc_wake)
gc_th->gc_wake = 0;
- if (try_to_freeze())
+ if (try_to_freeze()) {
+ stat_other_skip_bggc_count(sbi);
continue;
+ }
if (kthread_should_stop())
break;
if (sbi->sb->s_writers.frozen >= SB_FREEZE_WRITE) {
increase_sleep_time(gc_th, &wait_ms);
+ stat_other_skip_bggc_count(sbi);
continue;
}
if (time_to_inject(sbi, FAULT_CHECKPOINT)) {
- f2fs_show_injection_info(FAULT_CHECKPOINT);
+ f2fs_show_injection_info(sbi, FAULT_CHECKPOINT);
f2fs_stop_checkpoint(sbi, false);
}
- if (!sb_start_write_trylock(sbi->sb))
+ if (!sb_start_write_trylock(sbi->sb)) {
+ stat_other_skip_bggc_count(sbi);
continue;
+ }
/*
* [GC triggering condition]
@@ -76,16 +81,19 @@ static int gc_thread_func(void *data)
*/
if (sbi->gc_mode == GC_URGENT) {
wait_ms = gc_th->urgent_sleep_time;
- mutex_lock(&sbi->gc_mutex);
+ down_write(&sbi->gc_lock);
goto do_gc;
}
- if (!mutex_trylock(&sbi->gc_mutex))
+ if (!down_write_trylock(&sbi->gc_lock)) {
+ stat_other_skip_bggc_count(sbi);
goto next;
+ }
- if (!is_idle(sbi)) {
+ if (!is_idle(sbi, GC_TIME)) {
increase_sleep_time(gc_th, &wait_ms);
- mutex_unlock(&sbi->gc_mutex);
+ up_write(&sbi->gc_lock);
+ stat_io_skip_bggc_count(sbi);
goto next;
}
@@ -94,17 +102,19 @@ static int gc_thread_func(void *data)
else
increase_sleep_time(gc_th, &wait_ms);
do_gc:
- stat_inc_bggc_count(sbi);
+ stat_inc_bggc_count(sbi->stat_info);
+
+ sync_mode = F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_SYNC;
/* if return value is not zero, no victim was selected */
- if (f2fs_gc(sbi, test_opt(sbi, FORCE_FG_GC), true, NULL_SEGNO))
+ if (f2fs_gc(sbi, sync_mode, true, NULL_SEGNO))
wait_ms = gc_th->no_gc_sleep_time;
trace_f2fs_background_gc(sbi->sb, wait_ms,
prefree_segments(sbi), free_segments(sbi));
/* balancing f2fs's metadata periodically */
- f2fs_balance_fs_bg(sbi);
+ f2fs_balance_fs_bg(sbi, true);
next:
sb_end_write(sbi->sb);
@@ -137,7 +147,7 @@ int f2fs_start_gc_thread(struct f2fs_sb_info *sbi)
"f2fs_gc-%u:%u", MAJOR(dev), MINOR(dev));
if (IS_ERR(gc_th->f2fs_gc_task)) {
err = PTR_ERR(gc_th->f2fs_gc_task);
- kfree(gc_th);
+ kvfree(gc_th);
sbi->gc_thread = NULL;
}
out:
@@ -150,7 +160,7 @@ void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi)
if (!gc_th)
return;
kthread_stop(gc_th->f2fs_gc_task);
- kfree(gc_th);
+ kvfree(gc_th);
sbi->gc_thread = NULL;
}
@@ -187,7 +197,10 @@ static void select_policy(struct f2fs_sb_info *sbi, int gc_type,
p->ofs_unit = sbi->segs_per_sec;
}
- /* we need to check every dirty segments in the FG_GC case */
+ /*
+ * adjust candidates range, should select all dirty segments for
+ * foreground GC and urgent GC cases.
+ */
if (gc_type != FG_GC &&
(sbi->gc_mode != GC_URGENT) &&
p->max_search > sbi->max_victim_search)
@@ -306,10 +319,11 @@ static int get_victim_by_default(struct f2fs_sb_info *sbi,
struct sit_info *sm = SIT_I(sbi);
struct victim_sel_policy p;
unsigned int secno, last_victim;
- unsigned int last_segment = MAIN_SEGS(sbi);
+ unsigned int last_segment;
unsigned int nsearched = 0;
mutex_lock(&dirty_i->seglist_lock);
+ last_segment = MAIN_SECS(sbi) * sbi->segs_per_sec;
p.alloc_mode = alloc_mode;
select_policy(sbi, gc_type, type, &p);
@@ -327,6 +341,22 @@ static int get_victim_by_default(struct f2fs_sb_info *sbi,
if (p.max_search == 0)
goto out;
+ if (__is_large_section(sbi) && p.alloc_mode == LFS) {
+ if (sbi->next_victim_seg[BG_GC] != NULL_SEGNO) {
+ p.min_segno = sbi->next_victim_seg[BG_GC];
+ *result = p.min_segno;
+ sbi->next_victim_seg[BG_GC] = NULL_SEGNO;
+ goto got_result;
+ }
+ if (gc_type == FG_GC &&
+ sbi->next_victim_seg[FG_GC] != NULL_SEGNO) {
+ p.min_segno = sbi->next_victim_seg[FG_GC];
+ *result = p.min_segno;
+ sbi->next_victim_seg[FG_GC] = NULL_SEGNO;
+ goto got_result;
+ }
+ }
+
last_victim = sm->last_victim[p.gc_mode];
if (p.alloc_mode == LFS && gc_type == FG_GC) {
p.min_segno = check_bg_victims(sbi);
@@ -360,10 +390,25 @@ static int get_victim_by_default(struct f2fs_sb_info *sbi,
nsearched++;
}
+#ifdef CONFIG_F2FS_CHECK_FS
+ /*
+ * skip selecting the invalid segno (that is failed due to block
+ * validity check failure during GC) to avoid endless GC loop in
+ * such cases.
+ */
+ if (test_bit(segno, sm->invalid_segmap))
+ goto next;
+#endif
+
secno = GET_SEC_FROM_SEG(sbi, segno);
if (sec_usage_check(sbi, secno))
goto next;
+ /* Don't touch checkpointed data */
+ if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED) &&
+ get_ckpt_valid_blocks(sbi, segno) &&
+ p.alloc_mode != SSR))
+ goto next;
if (gc_type == BG_GC && test_bit(secno, dirty_i->victim_secmap))
goto next;
@@ -379,12 +424,15 @@ static int get_victim_by_default(struct f2fs_sb_info *sbi,
sm->last_victim[p.gc_mode] = last_victim + 1;
else
sm->last_victim[p.gc_mode] = segno + 1;
- sm->last_victim[p.gc_mode] %= MAIN_SEGS(sbi);
+ sm->last_victim[p.gc_mode] %=
+ (MAIN_SECS(sbi) * sbi->segs_per_sec);
break;
}
}
if (p.min_segno != NULL_SEGNO) {
got_it:
+ *result = (p.min_segno / p.ofs_unit) * p.ofs_unit;
+got_result:
if (p.alloc_mode == LFS) {
secno = GET_SEC_FROM_SEG(sbi, p.min_segno);
if (gc_type == FG_GC)
@@ -392,13 +440,13 @@ static int get_victim_by_default(struct f2fs_sb_info *sbi,
else
set_bit(secno, dirty_i->victim_secmap);
}
- *result = (p.min_segno / p.ofs_unit) * p.ofs_unit;
+ }
+out:
+ if (p.min_segno != NULL_SEGNO)
trace_f2fs_get_victim(sbi->sb, type, gc_type, &p,
sbi->cur_victim_sec,
prefree_segments(sbi), free_segments(sbi));
- }
-out:
mutex_unlock(&dirty_i->seglist_lock);
return (p.min_segno == NULL_SEGNO) ? 0 : 1;
@@ -463,7 +511,7 @@ static int check_valid_map(struct f2fs_sb_info *sbi,
* On validity, copy that node with cold status, otherwise (invalid node)
* ignore that.
*/
-static void gc_node_segment(struct f2fs_sb_info *sbi,
+static int gc_node_segment(struct f2fs_sb_info *sbi,
struct f2fs_summary *sum, unsigned int segno, int gc_type)
{
struct f2fs_summary *entry;
@@ -471,6 +519,7 @@ static void gc_node_segment(struct f2fs_sb_info *sbi,
int off;
int phase = 0;
bool fggc = (gc_type == FG_GC);
+ int submitted = 0;
start_addr = START_BLOCK(sbi, segno);
@@ -484,10 +533,11 @@ static void gc_node_segment(struct f2fs_sb_info *sbi,
nid_t nid = le32_to_cpu(entry->nid);
struct page *node_page;
struct node_info ni;
+ int err;
/* stop BG_GC if there is not enough free sections. */
if (gc_type == BG_GC && has_not_enough_free_secs(sbi, 0, 0))
- return;
+ return submitted;
if (check_valid_map(sbi, segno, off) == 0)
continue;
@@ -524,7 +574,9 @@ static void gc_node_segment(struct f2fs_sb_info *sbi,
continue;
}
- f2fs_move_node_page(node_page, gc_type);
+ err = f2fs_move_node_page(node_page, gc_type);
+ if (!err && gc_type == FG_GC)
+ submitted++;
stat_inc_node_blk_count(sbi, 1, gc_type);
}
@@ -533,6 +585,7 @@ static void gc_node_segment(struct f2fs_sb_info *sbi,
if (fggc)
atomic_dec(&sbi->wb_sync_req[NODE]);
+ return submitted;
}
/*
@@ -559,7 +612,7 @@ block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode)
int dec = (node_ofs - indirect_blks - 3) / (NIDS_PER_BLOCK + 1);
bidx = node_ofs - 5 - dec;
}
- return bidx * ADDRS_PER_BLOCK + ADDRS_PER_INODE(inode);
+ return bidx * ADDRS_PER_BLOCK(inode) + ADDRS_PER_INODE(inode);
}
static bool is_alive(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
@@ -583,18 +636,30 @@ static bool is_alive(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
}
if (sum->version != dni->version) {
- f2fs_msg(sbi->sb, KERN_WARNING,
- "%s: valid data with mismatched node version.",
- __func__);
+ f2fs_warn(sbi, "%s: valid data with mismatched node version.",
+ __func__);
set_sbi_flag(sbi, SBI_NEED_FSCK);
}
*nofs = ofs_of_node(node_page);
- source_blkaddr = datablock_addr(NULL, node_page, ofs_in_node);
+ source_blkaddr = data_blkaddr(NULL, node_page, ofs_in_node);
f2fs_put_page(node_page, 1);
- if (source_blkaddr != blkaddr)
+ if (source_blkaddr != blkaddr) {
+#ifdef CONFIG_F2FS_CHECK_FS
+ unsigned int segno = GET_SEGNO(sbi, blkaddr);
+ unsigned long offset = GET_BLKOFF_FROM_SEG0(sbi, blkaddr);
+
+ if (unlikely(check_valid_map(sbi, segno, offset))) {
+ if (!test_and_set_bit(segno, SIT_I(sbi)->invalid_segmap)) {
+ f2fs_err(sbi, "mismatched blkaddr %u (source_blkaddr %u) in seg %u\n",
+ blkaddr, source_blkaddr, segno);
+ f2fs_bug_on(sbi, 1);
+ }
+ }
+#endif
return false;
+ }
return true;
}
@@ -624,6 +689,11 @@ static int ra_data_block(struct inode *inode, pgoff_t index)
if (f2fs_lookup_extent_cache(inode, index, &ei)) {
dn.data_blkaddr = ei.blk + index - ei.fofs;
+ if (unlikely(!f2fs_is_valid_blkaddr(sbi, dn.data_blkaddr,
+ DATA_GENERIC_ENHANCE_READ))) {
+ err = -EFSCORRUPTED;
+ goto put_page;
+ }
goto got_it;
}
@@ -633,8 +703,12 @@ static int ra_data_block(struct inode *inode, pgoff_t index)
goto put_page;
f2fs_put_dnode(&dn);
+ if (!__is_valid_data_blkaddr(dn.data_blkaddr)) {
+ err = -ENOENT;
+ goto put_page;
+ }
if (unlikely(!f2fs_is_valid_blkaddr(sbi, dn.data_blkaddr,
- DATA_GENERIC))) {
+ DATA_GENERIC_ENHANCE))) {
err = -EFSCORRUPTED;
goto put_page;
}
@@ -643,6 +717,14 @@ static int ra_data_block(struct inode *inode, pgoff_t index)
fio.page = page;
fio.new_blkaddr = fio.old_blkaddr = dn.data_blkaddr;
+ /*
+ * don't cache encrypted data into meta inode until previous dirty
+ * data were writebacked to avoid racing between GC and flush.
+ */
+ f2fs_wait_on_page_writeback(page, DATA, true, true);
+
+ f2fs_wait_on_block_writeback(inode, dn.data_blkaddr);
+
fio.encrypted_page = f2fs_pagecache_get_page(META_MAPPING(sbi),
dn.data_blkaddr,
FGP_LOCK | FGP_CREAT, GFP_NOFS);
@@ -656,6 +738,10 @@ static int ra_data_block(struct inode *inode, pgoff_t index)
goto put_encrypted_page;
f2fs_put_page(fio.encrypted_page, 0);
f2fs_put_page(page, 1);
+
+ f2fs_update_iostat(sbi, FS_DATA_READ_IO, F2FS_BLKSIZE);
+ f2fs_update_iostat(sbi, FS_GDATA_READ_IO, F2FS_BLKSIZE);
+
return 0;
put_encrypted_page:
f2fs_put_page(fio.encrypted_page, 1);
@@ -668,7 +754,7 @@ static int ra_data_block(struct inode *inode, pgoff_t index)
* Move data block via META_MAPPING while keeping locked data page.
* This can be used to move blocks, aka LBAs, directly on disk.
*/
-static void move_data_block(struct inode *inode, block_t bidx,
+static int move_data_block(struct inode *inode, block_t bidx,
int gc_type, unsigned int segno, int off)
{
struct f2fs_io_info fio = {
@@ -687,25 +773,29 @@ static void move_data_block(struct inode *inode, block_t bidx,
struct node_info ni;
struct page *page, *mpage;
block_t newaddr;
- int err;
- bool lfs_mode = test_opt(fio.sbi, LFS);
+ int err = 0;
+ bool lfs_mode = f2fs_lfs_mode(fio.sbi);
/* do not read out */
page = f2fs_grab_cache_page(inode->i_mapping, bidx, false);
if (!page)
- return;
+ return -ENOMEM;
- if (!check_valid_map(F2FS_I_SB(inode), segno, off))
+ if (!check_valid_map(F2FS_I_SB(inode), segno, off)) {
+ err = -ENOENT;
goto out;
+ }
if (f2fs_is_atomic_file(inode)) {
F2FS_I(inode)->i_gc_failures[GC_FAILURE_ATOMIC]++;
F2FS_I_SB(inode)->skipped_atomic_files[gc_type]++;
+ err = -EAGAIN;
goto out;
}
if (f2fs_is_pinned_file(inode)) {
f2fs_pin_file_control(inode, true);
+ err = -EAGAIN;
goto out;
}
@@ -716,6 +806,7 @@ static void move_data_block(struct inode *inode, block_t bidx,
if (unlikely(dn.data_blkaddr == NULL_ADDR)) {
ClearPageUptodate(page);
+ err = -ENOENT;
goto put_out;
}
@@ -723,7 +814,9 @@ static void move_data_block(struct inode *inode, block_t bidx,
* don't cache encrypted data into meta inode until previous dirty
* data were writebacked to avoid racing between GC and flush.
*/
- f2fs_wait_on_page_writeback(page, DATA, true);
+ f2fs_wait_on_page_writeback(page, DATA, true, true);
+
+ f2fs_wait_on_block_writeback(inode, dn.data_blkaddr);
err = f2fs_get_node_info(fio.sbi, dn.nid, &ni);
if (err)
@@ -738,6 +831,33 @@ static void move_data_block(struct inode *inode, block_t bidx,
if (lfs_mode)
down_write(&fio.sbi->io_order_lock);
+ mpage = f2fs_grab_cache_page(META_MAPPING(fio.sbi),
+ fio.old_blkaddr, false);
+ if (!mpage)
+ goto up_out;
+
+ fio.encrypted_page = mpage;
+
+ /* read source block in mpage */
+ if (!PageUptodate(mpage)) {
+ err = f2fs_submit_page_bio(&fio);
+ if (err) {
+ f2fs_put_page(mpage, 1);
+ goto up_out;
+ }
+
+ f2fs_update_iostat(fio.sbi, FS_DATA_READ_IO, F2FS_BLKSIZE);
+ f2fs_update_iostat(fio.sbi, FS_GDATA_READ_IO, F2FS_BLKSIZE);
+
+ lock_page(mpage);
+ if (unlikely(mpage->mapping != META_MAPPING(fio.sbi) ||
+ !PageUptodate(mpage))) {
+ err = -EIO;
+ f2fs_put_page(mpage, 1);
+ goto up_out;
+ }
+ }
+
f2fs_allocate_data_block(fio.sbi, NULL, fio.old_blkaddr, &newaddr,
&sum, CURSEG_COLD_DATA, NULL, false);
@@ -745,45 +865,19 @@ static void move_data_block(struct inode *inode, block_t bidx,
newaddr, FGP_LOCK | FGP_CREAT, GFP_NOFS);
if (!fio.encrypted_page) {
err = -ENOMEM;
+ f2fs_put_page(mpage, 1);
goto recover_block;
}
- mpage = f2fs_pagecache_get_page(META_MAPPING(fio.sbi),
- fio.old_blkaddr, FGP_LOCK, GFP_NOFS);
- if (mpage) {
- bool updated = false;
+ /* write target block */
+ f2fs_wait_on_page_writeback(fio.encrypted_page, DATA, true, true);
+ memcpy(page_address(fio.encrypted_page),
+ page_address(mpage), PAGE_SIZE);
+ f2fs_put_page(mpage, 1);
+ invalidate_mapping_pages(META_MAPPING(fio.sbi),
+ fio.old_blkaddr, fio.old_blkaddr);
- if (PageUptodate(mpage)) {
- memcpy(page_address(fio.encrypted_page),
- page_address(mpage), PAGE_SIZE);
- updated = true;
- }
- f2fs_put_page(mpage, 1);
- invalidate_mapping_pages(META_MAPPING(fio.sbi),
- fio.old_blkaddr, fio.old_blkaddr);
- if (updated)
- goto write_page;
- }
-
- err = f2fs_submit_page_bio(&fio);
- if (err)
- goto put_page_out;
-
- /* write page */
- lock_page(fio.encrypted_page);
-
- if (unlikely(fio.encrypted_page->mapping != META_MAPPING(fio.sbi))) {
- err = -EIO;
- goto put_page_out;
- }
- if (unlikely(!PageUptodate(fio.encrypted_page))) {
- err = -EIO;
- goto put_page_out;
- }
-
-write_page:
set_page_dirty(fio.encrypted_page);
- f2fs_wait_on_page_writeback(fio.encrypted_page, DATA, true);
if (clear_page_dirty_for_io(fio.encrypted_page))
dec_page_count(fio.sbi, F2FS_DIRTY_META);
@@ -791,13 +885,14 @@ static void move_data_block(struct inode *inode, block_t bidx,
ClearPageError(page);
/* allocate block address */
- f2fs_wait_on_page_writeback(dn.node_page, NODE, true);
+ f2fs_wait_on_page_writeback(dn.node_page, NODE, true, true);
fio.op = REQ_OP_WRITE;
fio.op_flags = REQ_SYNC;
fio.new_blkaddr = newaddr;
f2fs_submit_page_write(&fio);
if (fio.retry) {
+ err = -EAGAIN;
if (PageWriteback(fio.encrypted_page))
end_page_writeback(fio.encrypted_page);
goto put_page_out;
@@ -812,43 +907,52 @@ static void move_data_block(struct inode *inode, block_t bidx,
put_page_out:
f2fs_put_page(fio.encrypted_page, 1);
recover_block:
- if (lfs_mode)
- up_write(&fio.sbi->io_order_lock);
if (err)
f2fs_do_replace_block(fio.sbi, &sum, newaddr, fio.old_blkaddr,
true, true);
+up_out:
+ if (lfs_mode)
+ up_write(&fio.sbi->io_order_lock);
put_out:
f2fs_put_dnode(&dn);
out:
f2fs_put_page(page, 1);
+ return err;
}
-static void move_data_page(struct inode *inode, block_t bidx, int gc_type,
+static int move_data_page(struct inode *inode, block_t bidx, int gc_type,
unsigned int segno, int off)
{
struct page *page;
+ int err = 0;
page = f2fs_get_lock_data_page(inode, bidx, true);
if (IS_ERR(page))
- return;
+ return PTR_ERR(page);
- if (!check_valid_map(F2FS_I_SB(inode), segno, off))
+ if (!check_valid_map(F2FS_I_SB(inode), segno, off)) {
+ err = -ENOENT;
goto out;
+ }
if (f2fs_is_atomic_file(inode)) {
F2FS_I(inode)->i_gc_failures[GC_FAILURE_ATOMIC]++;
F2FS_I_SB(inode)->skipped_atomic_files[gc_type]++;
+ err = -EAGAIN;
goto out;
}
if (f2fs_is_pinned_file(inode)) {
if (gc_type == FG_GC)
f2fs_pin_file_control(inode, true);
+ err = -EAGAIN;
goto out;
}
if (gc_type == BG_GC) {
- if (PageWriteback(page))
+ if (PageWriteback(page)) {
+ err = -EAGAIN;
goto out;
+ }
set_page_dirty(page);
set_cold_data(page);
} else {
@@ -866,11 +970,11 @@ static void move_data_page(struct inode *inode, block_t bidx, int gc_type,
.io_type = FS_GC_DATA_IO,
};
bool is_dirty = PageDirty(page);
- int err;
retry:
+ f2fs_wait_on_page_writeback(page, DATA, true, true);
+
set_page_dirty(page);
- f2fs_wait_on_page_writeback(page, DATA, true);
if (clear_page_dirty_for_io(page)) {
inode_dec_dirty_pages(inode);
f2fs_remove_dirty_inode(inode);
@@ -882,7 +986,8 @@ static void move_data_page(struct inode *inode, block_t bidx, int gc_type,
if (err) {
clear_cold_data(page);
if (err == -ENOMEM) {
- congestion_wait(BLK_RW_ASYNC, HZ/50);
+ congestion_wait(BLK_RW_ASYNC,
+ DEFAULT_IO_TIMEOUT);
goto retry;
}
if (is_dirty)
@@ -891,6 +996,7 @@ static void move_data_page(struct inode *inode, block_t bidx, int gc_type,
}
out:
f2fs_put_page(page, 1);
+ return err;
}
/*
@@ -900,7 +1006,7 @@ static void move_data_page(struct inode *inode, block_t bidx, int gc_type,
* If the parent node is not valid or the data block address is different,
* the victim data block is ignored.
*/
-static void gc_data_segment(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
+static int gc_data_segment(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
struct gc_inode_list *gc_list, unsigned int segno, int gc_type)
{
struct super_block *sb = sbi->sb;
@@ -908,6 +1014,7 @@ static void gc_data_segment(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
block_t start_addr;
int off;
int phase = 0;
+ int submitted = 0;
start_addr = START_BLOCK(sbi, segno);
@@ -922,9 +1029,15 @@ static void gc_data_segment(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
block_t start_bidx;
nid_t nid = le32_to_cpu(entry->nid);
- /* stop BG_GC if there is not enough free sections. */
- if (gc_type == BG_GC && has_not_enough_free_secs(sbi, 0, 0))
- return;
+ /*
+ * stop BG_GC if there is not enough free sections.
+ * Or, stop GC if the segment becomes fully valid caused by
+ * race condition along with SSR block allocation.
+ */
+ if ((gc_type == BG_GC && has_not_enough_free_secs(sbi, 0, 0)) ||
+ get_valid_blocks(sbi, segno, true) ==
+ BLKS_PER_SEC(sbi))
+ return submitted;
if (check_valid_map(sbi, segno, off) == 0)
continue;
@@ -953,8 +1066,10 @@ static void gc_data_segment(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
if (phase == 3) {
inode = f2fs_iget(sb, dni.ino);
- if (IS_ERR(inode) || is_bad_inode(inode))
+ if (IS_ERR(inode) || is_bad_inode(inode)) {
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
continue;
+ }
if (!down_write_trylock(
&F2FS_I(inode)->i_gc_rwsem[WRITE])) {
@@ -996,6 +1111,7 @@ static void gc_data_segment(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
if (inode) {
struct f2fs_inode_info *fi = F2FS_I(inode);
bool locked = false;
+ int err;
if (S_ISREG(inode->i_mode)) {
if (!down_write_trylock(&fi->i_gc_rwsem[READ])) {
@@ -1017,12 +1133,16 @@ static void gc_data_segment(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
start_bidx = f2fs_start_bidx_of_node(nofs, inode)
+ ofs_in_node;
if (f2fs_post_read_required(inode))
- move_data_block(inode, start_bidx, gc_type,
- segno, off);
+ err = move_data_block(inode, start_bidx,
+ gc_type, segno, off);
else
- move_data_page(inode, start_bidx, gc_type,
+ err = move_data_page(inode, start_bidx, gc_type,
segno, off);
+ if (!err && (gc_type == FG_GC ||
+ f2fs_post_read_required(inode)))
+ submitted++;
+
if (locked) {
up_write(&fi->i_gc_rwsem[WRITE]);
up_write(&fi->i_gc_rwsem[READ]);
@@ -1034,6 +1154,8 @@ static void gc_data_segment(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
if (++phase < 5)
goto next_step;
+
+ return submitted;
}
static int __get_victim(struct f2fs_sb_info *sbi, unsigned int *victim,
@@ -1058,18 +1180,34 @@ static int do_garbage_collect(struct f2fs_sb_info *sbi,
struct blk_plug plug;
unsigned int segno = start_segno;
unsigned int end_segno = start_segno + sbi->segs_per_sec;
- int seg_freed = 0;
+ int seg_freed = 0, migrated = 0;
unsigned char type = IS_DATASEG(get_seg_entry(sbi, segno)->type) ?
SUM_TYPE_DATA : SUM_TYPE_NODE;
+ int submitted = 0;
+
+ if (__is_large_section(sbi))
+ end_segno = rounddown(end_segno, sbi->segs_per_sec);
/* readahead multi ssa blocks those have contiguous address */
- if (sbi->segs_per_sec > 1)
+ if (__is_large_section(sbi))
f2fs_ra_meta_pages(sbi, GET_SUM_BLOCK(sbi, segno),
- sbi->segs_per_sec, META_SSA, true);
+ end_segno - segno, META_SSA, true);
/* reference all summary page */
while (segno < end_segno) {
sum_page = f2fs_get_sum_page(sbi, segno++);
+ if (IS_ERR(sum_page)) {
+ int err = PTR_ERR(sum_page);
+
+ end_segno = segno - 1;
+ for (segno = start_segno; segno < end_segno; segno++) {
+ sum_page = find_get_page(META_MAPPING(sbi),
+ GET_SUM_BLOCK(sbi, segno));
+ f2fs_put_page(sum_page, 0);
+ f2fs_put_page(sum_page, 0);
+ }
+ return err;
+ }
unlock_page(sum_page);
}
@@ -1084,16 +1222,19 @@ static int do_garbage_collect(struct f2fs_sb_info *sbi,
if (get_valid_blocks(sbi, segno, false) == 0)
goto freed;
+ if (gc_type == BG_GC && __is_large_section(sbi) &&
+ migrated >= sbi->migration_granularity)
+ goto skip;
if (!PageUptodate(sum_page) || unlikely(f2fs_cp_error(sbi)))
- goto next;
+ goto skip;
sum = page_address(sum_page);
if (type != GET_SUM_TYPE((&sum->footer))) {
- f2fs_msg(sbi->sb, KERN_ERR, "Inconsistent segment (%u) "
- "type [%d, %d] in SSA and SIT",
- segno, type, GET_SUM_TYPE((&sum->footer)));
+ f2fs_err(sbi, "Inconsistent segment (%u) type [%d, %d] in SSA and SIT",
+ segno, type, GET_SUM_TYPE((&sum->footer)));
set_sbi_flag(sbi, SBI_NEED_FSCK);
- goto next;
+ f2fs_stop_checkpoint(sbi, false);
+ goto skip;
}
/*
@@ -1104,22 +1245,27 @@ static int do_garbage_collect(struct f2fs_sb_info *sbi,
* - lock_page(sum_page)
*/
if (type == SUM_TYPE_NODE)
- gc_node_segment(sbi, sum->entries, segno, gc_type);
- else
- gc_data_segment(sbi, sum->entries, gc_list, segno,
+ submitted += gc_node_segment(sbi, sum->entries, segno,
gc_type);
+ else
+ submitted += gc_data_segment(sbi, sum->entries, gc_list,
+ segno, gc_type);
stat_inc_seg_count(sbi, type, gc_type);
+ migrated++;
freed:
if (gc_type == FG_GC &&
get_valid_blocks(sbi, segno, false) == 0)
seg_freed++;
-next:
+
+ if (__is_large_section(sbi) && segno + 1 < end_segno)
+ sbi->next_victim_seg[gc_type] = segno + 1;
+skip:
f2fs_put_page(sum_page, 0);
}
- if (gc_type == FG_GC)
+ if (submitted)
f2fs_submit_merged_write(sbi,
(type == SUM_TYPE_NODE) ? NODE : DATA);
@@ -1174,7 +1320,8 @@ int f2fs_gc(struct f2fs_sb_info *sbi, bool sync,
* threshold, we can make them free by checkpoint. Then, we
* secure free segments which doesn't need fggc any more.
*/
- if (prefree_segments(sbi)) {
+ if (prefree_segments(sbi) &&
+ !is_sbi_flag_set(sbi, SBI_CP_DISABLED)) {
ret = f2fs_write_checkpoint(sbi, &cpc);
if (ret)
goto stop;
@@ -1206,7 +1353,7 @@ int f2fs_gc(struct f2fs_sb_info *sbi, bool sync,
round++;
}
- if (gc_type == FG_GC)
+ if (gc_type == FG_GC && seg_freed)
sbi->cur_victim_sec = NULL_SEGNO;
if (sync)
@@ -1226,7 +1373,7 @@ int f2fs_gc(struct f2fs_sb_info *sbi, bool sync,
segno = NULL_SEGNO;
goto gc_more;
}
- if (gc_type == FG_GC)
+ if (gc_type == FG_GC && !is_sbi_flag_set(sbi, SBI_CP_DISABLED))
ret = f2fs_write_checkpoint(sbi, &cpc);
}
stop:
@@ -1242,7 +1389,7 @@ int f2fs_gc(struct f2fs_sb_info *sbi, bool sync,
reserved_segments(sbi),
prefree_segments(sbi));
- mutex_unlock(&sbi->gc_mutex);
+ up_write(&sbi->gc_lock);
put_gc_inode(&gc_list);
@@ -1258,7 +1405,243 @@ void f2fs_build_gc_manager(struct f2fs_sb_info *sbi)
sbi->gc_pin_file_threshold = DEF_GC_FAILED_PINNED_FILES;
/* give warm/cold data area from slower device */
- if (f2fs_is_multi_device(sbi) && sbi->segs_per_sec == 1)
+ if (f2fs_is_multi_device(sbi) && !__is_large_section(sbi))
SIT_I(sbi)->last_victim[ALLOC_NEXT] =
GET_SEGNO(sbi, FDEV(0).end_blk) + 1;
}
+
+static int free_segment_range(struct f2fs_sb_info *sbi,
+ unsigned int secs, bool gc_only)
+{
+ unsigned int segno, next_inuse, start, end;
+ struct cp_control cpc = { CP_RESIZE, 0, 0, 0 };
+ int gc_mode, gc_type;
+ int err = 0;
+ int type;
+
+ /* Force block allocation for GC */
+ MAIN_SECS(sbi) -= secs;
+ start = MAIN_SECS(sbi) * sbi->segs_per_sec;
+ end = MAIN_SEGS(sbi) - 1;
+
+ mutex_lock(&DIRTY_I(sbi)->seglist_lock);
+ for (gc_mode = 0; gc_mode < MAX_GC_POLICY; gc_mode++)
+ if (SIT_I(sbi)->last_victim[gc_mode] >= start)
+ SIT_I(sbi)->last_victim[gc_mode] = 0;
+
+ for (gc_type = BG_GC; gc_type <= FG_GC; gc_type++)
+ if (sbi->next_victim_seg[gc_type] >= start)
+ sbi->next_victim_seg[gc_type] = NULL_SEGNO;
+ mutex_unlock(&DIRTY_I(sbi)->seglist_lock);
+
+ /* Move out cursegs from the target range */
+ for (type = CURSEG_HOT_DATA; type < NR_CURSEG_TYPE; type++)
+ allocate_segment_for_resize(sbi, type, start, end);
+
+ /* do GC to move out valid blocks in the range */
+ for (segno = start; segno <= end; segno += sbi->segs_per_sec) {
+ struct gc_inode_list gc_list = {
+ .ilist = LIST_HEAD_INIT(gc_list.ilist),
+ .iroot = RADIX_TREE_INIT(gc_list.iroot, GFP_NOFS),
+ };
+
+ do_garbage_collect(sbi, segno, &gc_list, FG_GC);
+ put_gc_inode(&gc_list);
+
+ if (!gc_only && get_valid_blocks(sbi, segno, true)) {
+ err = -EAGAIN;
+ goto out;
+ }
+ if (fatal_signal_pending(current)) {
+ err = -ERESTARTSYS;
+ goto out;
+ }
+ }
+ if (gc_only)
+ goto out;
+
+ err = f2fs_write_checkpoint(sbi, &cpc);
+ if (err)
+ goto out;
+
+ next_inuse = find_next_inuse(FREE_I(sbi), end + 1, start);
+ if (next_inuse <= end) {
+ f2fs_err(sbi, "segno %u should be free but still inuse!",
+ next_inuse);
+ f2fs_bug_on(sbi, 1);
+ }
+out:
+ MAIN_SECS(sbi) += secs;
+ return err;
+}
+
+static void update_sb_metadata(struct f2fs_sb_info *sbi, int secs)
+{
+ struct f2fs_super_block *raw_sb = F2FS_RAW_SUPER(sbi);
+ int section_count;
+ int segment_count;
+ int segment_count_main;
+ long long block_count;
+ int segs = secs * sbi->segs_per_sec;
+
+ down_write(&sbi->sb_lock);
+
+ section_count = le32_to_cpu(raw_sb->section_count);
+ segment_count = le32_to_cpu(raw_sb->segment_count);
+ segment_count_main = le32_to_cpu(raw_sb->segment_count_main);
+ block_count = le64_to_cpu(raw_sb->block_count);
+
+ raw_sb->section_count = cpu_to_le32(section_count + secs);
+ raw_sb->segment_count = cpu_to_le32(segment_count + segs);
+ raw_sb->segment_count_main = cpu_to_le32(segment_count_main + segs);
+ raw_sb->block_count = cpu_to_le64(block_count +
+ (long long)segs * sbi->blocks_per_seg);
+ if (f2fs_is_multi_device(sbi)) {
+ int last_dev = sbi->s_ndevs - 1;
+ int dev_segs =
+ le32_to_cpu(raw_sb->devs[last_dev].total_segments);
+
+ raw_sb->devs[last_dev].total_segments =
+ cpu_to_le32(dev_segs + segs);
+ }
+
+ up_write(&sbi->sb_lock);
+}
+
+static void update_fs_metadata(struct f2fs_sb_info *sbi, int secs)
+{
+ int segs = secs * sbi->segs_per_sec;
+ long long blks = (long long)segs * sbi->blocks_per_seg;
+ long long user_block_count =
+ le64_to_cpu(F2FS_CKPT(sbi)->user_block_count);
+
+ SM_I(sbi)->segment_count = (int)SM_I(sbi)->segment_count + segs;
+ MAIN_SEGS(sbi) = (int)MAIN_SEGS(sbi) + segs;
+ MAIN_SECS(sbi) += secs;
+ FREE_I(sbi)->free_sections = (int)FREE_I(sbi)->free_sections + secs;
+ FREE_I(sbi)->free_segments = (int)FREE_I(sbi)->free_segments + segs;
+ F2FS_CKPT(sbi)->user_block_count = cpu_to_le64(user_block_count + blks);
+
+ if (f2fs_is_multi_device(sbi)) {
+ int last_dev = sbi->s_ndevs - 1;
+
+ FDEV(last_dev).total_segments =
+ (int)FDEV(last_dev).total_segments + segs;
+ FDEV(last_dev).end_blk =
+ (long long)FDEV(last_dev).end_blk + blks;
+#ifdef CONFIG_BLK_DEV_ZONED
+ FDEV(last_dev).nr_blkz = (int)FDEV(last_dev).nr_blkz +
+ (int)(blks >> sbi->log_blocks_per_blkz);
+#endif
+ }
+}
+
+int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count)
+{
+ __u64 old_block_count, shrunk_blocks;
+ struct cp_control cpc = { CP_RESIZE, 0, 0, 0 };
+ unsigned int secs;
+ int err = 0;
+ __u32 rem;
+
+ old_block_count = le64_to_cpu(F2FS_RAW_SUPER(sbi)->block_count);
+ if (block_count > old_block_count)
+ return -EINVAL;
+
+ if (f2fs_is_multi_device(sbi)) {
+ int last_dev = sbi->s_ndevs - 1;
+ __u64 last_segs = FDEV(last_dev).total_segments;
+
+ if (block_count + last_segs * sbi->blocks_per_seg <=
+ old_block_count)
+ return -EINVAL;
+ }
+
+ /* new fs size should align to section size */
+ div_u64_rem(block_count, BLKS_PER_SEC(sbi), &rem);
+ if (rem)
+ return -EINVAL;
+
+ if (block_count == old_block_count)
+ return 0;
+
+ if (is_sbi_flag_set(sbi, SBI_NEED_FSCK)) {
+ f2fs_err(sbi, "Should run fsck to repair first.");
+ return -EFSCORRUPTED;
+ }
+
+ if (test_opt(sbi, DISABLE_CHECKPOINT)) {
+ f2fs_err(sbi, "Checkpoint should be enabled.");
+ return -EINVAL;
+ }
+
+ shrunk_blocks = old_block_count - block_count;
+ secs = div_u64(shrunk_blocks, BLKS_PER_SEC(sbi));
+
+ /* stop other GC */
+ if (!down_write_trylock(&sbi->gc_lock))
+ return -EAGAIN;
+
+ /* stop CP to protect MAIN_SEC in free_segment_range */
+ f2fs_lock_op(sbi);
+ err = free_segment_range(sbi, secs, true);
+ f2fs_unlock_op(sbi);
+ up_write(&sbi->gc_lock);
+ if (err)
+ return err;
+
+ set_sbi_flag(sbi, SBI_IS_RESIZEFS);
+
+ freeze_super(sbi->sb);
+ down_write(&sbi->gc_lock);
+ mutex_lock(&sbi->cp_mutex);
+
+ spin_lock(&sbi->stat_lock);
+ if (shrunk_blocks + valid_user_blocks(sbi) +
+ sbi->current_reserved_blocks + sbi->unusable_block_count +
+ F2FS_OPTION(sbi).root_reserved_blocks > sbi->user_block_count)
+ err = -ENOSPC;
+ else
+ sbi->user_block_count -= shrunk_blocks;
+ spin_unlock(&sbi->stat_lock);
+ if (err)
+ goto out_err;
+
+ err = free_segment_range(sbi, secs, false);
+ if (err)
+ goto recover_out;
+
+ update_sb_metadata(sbi, -secs);
+
+ err = f2fs_commit_super(sbi, false);
+ if (err) {
+ update_sb_metadata(sbi, secs);
+ goto recover_out;
+ }
+
+ update_fs_metadata(sbi, -secs);
+ clear_sbi_flag(sbi, SBI_IS_RESIZEFS);
+ set_sbi_flag(sbi, SBI_IS_DIRTY);
+
+ err = f2fs_write_checkpoint(sbi, &cpc);
+ if (err) {
+ update_fs_metadata(sbi, secs);
+ update_sb_metadata(sbi, secs);
+ f2fs_commit_super(sbi, false);
+ }
+recover_out:
+ if (err) {
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
+ f2fs_err(sbi, "resize_fs failed, should run fsck to repair!");
+
+ spin_lock(&sbi->stat_lock);
+ sbi->user_block_count += shrunk_blocks;
+ spin_unlock(&sbi->stat_lock);
+ }
+out_err:
+ mutex_unlock(&sbi->cp_mutex);
+ up_write(&sbi->gc_lock);
+ thaw_super(sbi->sb);
+ clear_sbi_flag(sbi, SBI_IS_RESIZEFS);
+ return err;
+}
diff --git a/fs/f2fs/gc.h b/fs/f2fs/gc.h
index c8619e4..db3c610 100644
--- a/fs/f2fs/gc.h
+++ b/fs/f2fs/gc.h
@@ -1,12 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* fs/f2fs/gc.h
*
* Copyright (c) 2012 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#define GC_THREAD_MIN_WB_PAGES 1 /*
* a threshold to determine
diff --git a/fs/f2fs/hash.c b/fs/f2fs/hash.c
index eb2e031..f9b7064 100644
--- a/fs/f2fs/hash.c
+++ b/fs/f2fs/hash.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* fs/f2fs/hash.c
*
@@ -7,16 +8,13 @@
* Portions of this code from linux/fs/ext3/hash.c
*
* Copyright (C) 2002 by Theodore Ts'o
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/types.h>
#include <linux/fs.h>
#include <linux/f2fs_fs.h>
#include <linux/cryptohash.h>
#include <linux/pagemap.h>
+#include <linux/unicode.h>
#include "f2fs.h"
@@ -70,22 +68,9 @@ static void str2hashbuf(const unsigned char *msg, size_t len,
*buf++ = pad;
}
-f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info,
- struct fscrypt_name *fname)
+static u32 TEA_hash_name(const u8 *p, size_t len)
{
- __u32 hash;
- f2fs_hash_t f2fs_hash;
- const unsigned char *p;
__u32 in[8], buf[4];
- const unsigned char *name = name_info->name;
- size_t len = name_info->len;
-
- /* encrypted bigname case */
- if (fname && !fname->disk_name.name)
- return cpu_to_le32(fname->hash);
-
- if (is_dot_dotdot(name_info))
- return 0;
/* Initialize the default seed for the hash checksum functions */
buf[0] = 0x67452301;
@@ -93,7 +78,6 @@ f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info,
buf[2] = 0x98badcfe;
buf[3] = 0x10325476;
- p = name;
while (1) {
str2hashbuf(p, len, in, 4);
TEA_transform(buf, in);
@@ -102,7 +86,52 @@ f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info,
break;
len -= 16;
}
- hash = buf[0];
- f2fs_hash = cpu_to_le32(hash & ~F2FS_HASH_COL_BIT);
- return f2fs_hash;
+ return buf[0] & ~F2FS_HASH_COL_BIT;
+}
+
+/*
+ * Compute @fname->hash. For all directories, @fname->disk_name must be set.
+ * For casefolded directories, @fname->usr_fname must be set, and also
+ * @fname->cf_name if the filename is valid Unicode.
+ */
+void f2fs_hash_filename(const struct inode *dir, struct f2fs_filename *fname)
+{
+ const u8 *name = fname->disk_name.name;
+ size_t len = fname->disk_name.len;
+
+ WARN_ON_ONCE(!name);
+
+ if (is_dot_dotdot(name, len)) {
+ fname->hash = 0;
+ return;
+ }
+
+#ifdef CONFIG_UNICODE
+ if (IS_CASEFOLDED(dir)) {
+ /*
+ * If the casefolded name is provided, hash it instead of the
+ * on-disk name. If the casefolded name is *not* provided, that
+ * should only be because the name wasn't valid Unicode, so fall
+ * back to treating the name as an opaque byte sequence. Note
+ * that to handle encrypted directories, the fallback must use
+ * usr_fname (plaintext) rather than disk_name (ciphertext).
+ */
+ WARN_ON_ONCE(!fname->usr_fname->name);
+ if (fname->cf_name.name) {
+ name = fname->cf_name.name;
+ len = fname->cf_name.len;
+ } else {
+ name = fname->usr_fname->name;
+ len = fname->usr_fname->len;
+ }
+ if (IS_ENCRYPTED(dir)) {
+ struct qstr tmp = QSTR_INIT(name, len);
+
+ fname->hash =
+ cpu_to_le32(fscrypt_fname_siphash(dir, &tmp));
+ return;
+ }
+ }
+#endif
+ fname->hash = cpu_to_le32(TEA_hash_name(name, len));
}
diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c
index 6bf78cf..59037fb 100644
--- a/fs/f2fs/inline.c
+++ b/fs/f2fs/inline.c
@@ -1,11 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* fs/f2fs/inline.c
* Copyright (c) 2013, Intel Corporation
* Authors: Huajun Li <huajun.li@intel.com>
* Haicheng Li <haicheng.li@intel.com>
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/fs.h>
@@ -13,6 +11,7 @@
#include "f2fs.h"
#include "node.h"
+#include <trace/events/android_fs.h>
bool f2fs_may_inline_data(struct inode *inode)
{
@@ -74,7 +73,7 @@ void f2fs_truncate_inline_inode(struct inode *inode,
addr = inline_data_addr(inode, ipage);
- f2fs_wait_on_page_writeback(ipage, NODE, true);
+ f2fs_wait_on_page_writeback(ipage, NODE, true, true);
memset(addr + from, 0, MAX_INLINE_DATA(inode) - from);
set_page_dirty(ipage);
@@ -86,14 +85,29 @@ int f2fs_read_inline_data(struct inode *inode, struct page *page)
{
struct page *ipage;
+ if (trace_android_fs_dataread_start_enabled()) {
+ char *path, pathbuf[MAX_TRACE_PATHBUF_LEN];
+
+ path = android_fstrace_get_pathname(pathbuf,
+ MAX_TRACE_PATHBUF_LEN,
+ inode);
+ trace_android_fs_dataread_start(inode, page_offset(page),
+ PAGE_SIZE, current->pid,
+ path, current->comm);
+ }
+
ipage = f2fs_get_node_page(F2FS_I_SB(inode), inode->i_ino);
if (IS_ERR(ipage)) {
+ trace_android_fs_dataread_end(inode, page_offset(page),
+ PAGE_SIZE);
unlock_page(page);
return PTR_ERR(ipage);
}
if (!f2fs_has_inline_data(inode)) {
f2fs_put_page(ipage, 1);
+ trace_android_fs_dataread_end(inode, page_offset(page),
+ PAGE_SIZE);
return -EAGAIN;
}
@@ -105,6 +119,8 @@ int f2fs_read_inline_data(struct inode *inode, struct page *page)
if (!PageUptodate(page))
SetPageUptodate(page);
f2fs_put_page(ipage, 1);
+ trace_android_fs_dataread_end(inode, page_offset(page),
+ PAGE_SIZE);
unlock_page(page);
return 0;
}
@@ -143,10 +159,8 @@ int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page)
if (unlikely(dn->data_blkaddr != NEW_ADDR)) {
f2fs_put_dnode(dn);
set_sbi_flag(fio.sbi, SBI_NEED_FSCK);
- f2fs_msg(fio.sbi->sb, KERN_WARNING,
- "%s: corrupted inline inode ino=%lx, i_addr[0]:0x%x, "
- "run fsck to fix.",
- __func__, dn->inode->i_ino, dn->data_blkaddr);
+ f2fs_warn(fio.sbi, "%s: corrupted inline inode ino=%lx, i_addr[0]:0x%x, run fsck to fix.",
+ __func__, dn->inode->i_ino, dn->data_blkaddr);
return -EFSCORRUPTED;
}
@@ -164,7 +178,7 @@ int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page)
fio.old_blkaddr = dn->data_blkaddr;
set_inode_flag(dn->inode, FI_HOT_DATA);
f2fs_outplace_write_data(dn, &fio);
- f2fs_wait_on_page_writeback(page, DATA, true);
+ f2fs_wait_on_page_writeback(page, DATA, true, true);
if (dirty) {
inode_dec_dirty_pages(dn->inode);
f2fs_remove_dirty_inode(dn->inode);
@@ -244,7 +258,7 @@ int f2fs_write_inline_data(struct inode *inode, struct page *page)
f2fs_bug_on(F2FS_I_SB(inode), page->index);
- f2fs_wait_on_page_writeback(dn.inode_page, NODE, true);
+ f2fs_wait_on_page_writeback(dn.inode_page, NODE, true, true);
src_addr = kmap_atomic(page);
dst_addr = inline_data_addr(inode, dn.inode_page);
memcpy(dst_addr, src_addr, MAX_INLINE_DATA(inode));
@@ -286,7 +300,7 @@ int f2fs_recover_inline_data(struct inode *inode, struct page *npage)
if (IS_ERR(ipage))
return PTR_ERR(ipage);
- f2fs_wait_on_page_writeback(ipage, NODE, true);
+ f2fs_wait_on_page_writeback(ipage, NODE, true, true);
src_addr = inline_data_addr(inode, npage);
dst_addr = inline_data_addr(inode, ipage);
@@ -319,15 +333,14 @@ int f2fs_recover_inline_data(struct inode *inode, struct page *npage)
}
struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir,
- struct fscrypt_name *fname, struct page **res_page)
+ const struct f2fs_filename *fname,
+ struct page **res_page)
{
struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
- struct qstr name = FSTR_TO_QSTR(&fname->disk_name);
struct f2fs_dir_entry *de;
struct f2fs_dentry_ptr d;
struct page *ipage;
void *inline_dentry;
- f2fs_hash_t namehash;
ipage = f2fs_get_node_page(sbi, dir->i_ino);
if (IS_ERR(ipage)) {
@@ -335,12 +348,10 @@ struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir,
return NULL;
}
- namehash = f2fs_dentry_hash(&name, fname);
-
inline_dentry = inline_data_addr(dir, ipage);
make_dentry_ptr_inline(dir, &d, inline_dentry);
- de = f2fs_find_target_dentry(fname, namehash, NULL, &d);
+ de = f2fs_find_target_dentry(&d, fname, NULL);
unlock_page(ipage);
if (de)
*res_page = ipage;
@@ -382,7 +393,7 @@ static int f2fs_move_inline_dirents(struct inode *dir, struct page *ipage,
struct f2fs_dentry_ptr src, dst;
int err;
- page = f2fs_grab_cache_page(dir->i_mapping, 0, false);
+ page = f2fs_grab_cache_page(dir->i_mapping, 0, true);
if (!page) {
f2fs_put_page(ipage, 1);
return -ENOMEM;
@@ -396,15 +407,13 @@ static int f2fs_move_inline_dirents(struct inode *dir, struct page *ipage,
if (unlikely(dn.data_blkaddr != NEW_ADDR)) {
f2fs_put_dnode(&dn);
set_sbi_flag(F2FS_P_SB(page), SBI_NEED_FSCK);
- f2fs_msg(F2FS_P_SB(page)->sb, KERN_WARNING,
- "%s: corrupted inline inode ino=%lx, i_addr[0]:0x%x, "
- "run fsck to fix.",
- __func__, dir->i_ino, dn.data_blkaddr);
+ f2fs_warn(F2FS_P_SB(page), "%s: corrupted inline inode ino=%lx, i_addr[0]:0x%x, run fsck to fix.",
+ __func__, dir->i_ino, dn.data_blkaddr);
err = -EFSCORRUPTED;
goto out;
}
- f2fs_wait_on_page_writeback(page, DATA, true);
+ f2fs_wait_on_page_writeback(page, DATA, true, true);
dentry_blk = page_address(page);
@@ -433,6 +442,14 @@ static int f2fs_move_inline_dirents(struct inode *dir, struct page *ipage,
stat_dec_inline_dir(dir);
clear_inode_flag(dir, FI_INLINE_DENTRY);
+ /*
+ * should retrieve reserved space which was used to keep
+ * inline_dentry's structure for backward compatibility.
+ */
+ if (!f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(dir)) &&
+ !f2fs_has_inline_xattr(dir))
+ F2FS_I(dir)->i_inline_xattr_size = 0;
+
f2fs_i_depth_write(dir, 1);
if (i_size_read(dir) < PAGE_SIZE)
f2fs_i_size_write(dir, PAGE_SIZE);
@@ -451,7 +468,7 @@ static int f2fs_add_inline_entries(struct inode *dir, void *inline_dentry)
while (bit_pos < d.max) {
struct f2fs_dir_entry *de;
- struct qstr new_name;
+ struct f2fs_filename fname;
nid_t ino;
umode_t fake_mode;
@@ -467,14 +484,19 @@ static int f2fs_add_inline_entries(struct inode *dir, void *inline_dentry)
continue;
}
- new_name.name = d.filename[bit_pos];
- new_name.len = le16_to_cpu(de->name_len);
+ /*
+ * We only need the disk_name and hash to move the dentry.
+ * We don't need the original or casefolded filenames.
+ */
+ memset(&fname, 0, sizeof(fname));
+ fname.disk_name.name = d.filename[bit_pos];
+ fname.disk_name.len = le16_to_cpu(de->name_len);
+ fname.hash = de->hash_code;
ino = le32_to_cpu(de->ino);
fake_mode = f2fs_get_de_type(de) << S_SHIFT;
- err = f2fs_add_regular_entry(dir, &new_name, NULL, NULL,
- ino, fake_mode);
+ err = f2fs_add_regular_entry(dir, &fname, NULL, ino, fake_mode);
if (err)
goto punch_dentry_pages;
@@ -514,22 +536,31 @@ static int f2fs_move_rehashed_dirents(struct inode *dir, struct page *ipage,
stat_dec_inline_dir(dir);
clear_inode_flag(dir, FI_INLINE_DENTRY);
- kfree(backup_dentry);
+
+ /*
+ * should retrieve reserved space which was used to keep
+ * inline_dentry's structure for backward compatibility.
+ */
+ if (!f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(dir)) &&
+ !f2fs_has_inline_xattr(dir))
+ F2FS_I(dir)->i_inline_xattr_size = 0;
+
+ kvfree(backup_dentry);
return 0;
recover:
lock_page(ipage);
- f2fs_wait_on_page_writeback(ipage, NODE, true);
+ f2fs_wait_on_page_writeback(ipage, NODE, true, true);
memcpy(inline_dentry, backup_dentry, MAX_INLINE_DATA(dir));
f2fs_i_depth_write(dir, 0);
f2fs_i_size_write(dir, MAX_INLINE_DATA(dir));
set_page_dirty(ipage);
f2fs_put_page(ipage, 1);
- kfree(backup_dentry);
+ kvfree(backup_dentry);
return err;
}
-static int f2fs_convert_inline_dir(struct inode *dir, struct page *ipage,
+static int do_convert_inline_dir(struct inode *dir, struct page *ipage,
void *inline_dentry)
{
if (!F2FS_I(dir)->i_dir_level)
@@ -538,17 +569,55 @@ static int f2fs_convert_inline_dir(struct inode *dir, struct page *ipage,
return f2fs_move_rehashed_dirents(dir, ipage, inline_dentry);
}
-int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name,
- const struct qstr *orig_name,
- struct inode *inode, nid_t ino, umode_t mode)
+int f2fs_try_convert_inline_dir(struct inode *dir, struct dentry *dentry)
+{
+ struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
+ struct page *ipage;
+ struct f2fs_filename fname;
+ void *inline_dentry = NULL;
+ int err = 0;
+
+ if (!f2fs_has_inline_dentry(dir))
+ return 0;
+
+ f2fs_lock_op(sbi);
+
+ err = f2fs_setup_filename(dir, &dentry->d_name, 0, &fname);
+ if (err)
+ goto out;
+
+ ipage = f2fs_get_node_page(sbi, dir->i_ino);
+ if (IS_ERR(ipage)) {
+ err = PTR_ERR(ipage);
+ goto out_fname;
+ }
+
+ if (f2fs_has_enough_room(dir, ipage, &fname)) {
+ f2fs_put_page(ipage, 1);
+ goto out_fname;
+ }
+
+ inline_dentry = inline_data_addr(dir, ipage);
+
+ err = do_convert_inline_dir(dir, ipage, inline_dentry);
+ if (!err)
+ f2fs_put_page(ipage, 1);
+out_fname:
+ f2fs_free_filename(&fname);
+out:
+ f2fs_unlock_op(sbi);
+ return err;
+}
+
+int f2fs_add_inline_entry(struct inode *dir, const struct f2fs_filename *fname,
+ struct inode *inode, nid_t ino, umode_t mode)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
struct page *ipage;
unsigned int bit_pos;
- f2fs_hash_t name_hash;
void *inline_dentry = NULL;
struct f2fs_dentry_ptr d;
- int slots = GET_DENTRY_SLOTS(new_name->len);
+ int slots = GET_DENTRY_SLOTS(fname->disk_name.len);
struct page *page = NULL;
int err = 0;
@@ -561,7 +630,7 @@ int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name,
bit_pos = f2fs_room_for_filename(d.bitmap, slots, d.max);
if (bit_pos >= d.max) {
- err = f2fs_convert_inline_dir(dir, ipage, inline_dentry);
+ err = do_convert_inline_dir(dir, ipage, inline_dentry);
if (err)
return err;
err = -EAGAIN;
@@ -570,18 +639,17 @@ int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name,
if (inode) {
down_write(&F2FS_I(inode)->i_sem);
- page = f2fs_init_inode_metadata(inode, dir, new_name,
- orig_name, ipage);
+ page = f2fs_init_inode_metadata(inode, dir, fname, ipage);
if (IS_ERR(page)) {
err = PTR_ERR(page);
goto fail;
}
}
- f2fs_wait_on_page_writeback(ipage, NODE, true);
+ f2fs_wait_on_page_writeback(ipage, NODE, true, true);
- name_hash = f2fs_dentry_hash(new_name, NULL);
- f2fs_update_dentry(ino, mode, &d, new_name, name_hash, bit_pos);
+ f2fs_update_dentry(ino, mode, &d, &fname->disk_name, fname->hash,
+ bit_pos);
set_page_dirty(ipage);
@@ -615,7 +683,7 @@ void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry, struct page *page,
int i;
lock_page(page);
- f2fs_wait_on_page_writeback(page, NODE, true);
+ f2fs_wait_on_page_writeback(page, NODE, true, true);
inline_dentry = inline_data_addr(dir, page);
make_dentry_ptr_inline(dir, &d, inline_dentry);
@@ -709,7 +777,13 @@ int f2fs_inline_data_fiemap(struct inode *inode,
if (IS_ERR(ipage))
return PTR_ERR(ipage);
- if (!f2fs_has_inline_data(inode)) {
+ if ((S_ISREG(inode->i_mode) || S_ISLNK(inode->i_mode)) &&
+ !f2fs_has_inline_data(inode)) {
+ err = -EAGAIN;
+ goto out;
+ }
+
+ if (S_ISDIR(inode->i_mode) && !f2fs_has_inline_dentry(inode)) {
err = -EAGAIN;
goto out;
}
diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index a01be7d..be6ac33 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* fs/f2fs/inode.c
*
* Copyright (c) 2012 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/fs.h>
#include <linux/f2fs_fs.h>
@@ -17,6 +14,7 @@
#include "f2fs.h"
#include "node.h"
#include "segment.h"
+#include "xattr.h"
#include <trace/events/f2fs.h>
@@ -46,11 +44,15 @@ void f2fs_set_inode_flags(struct inode *inode)
new_fl |= S_NOATIME;
if (flags & F2FS_DIRSYNC_FL)
new_fl |= S_DIRSYNC;
- if (f2fs_encrypted_inode(inode))
+ if (file_is_encrypt(inode))
new_fl |= S_ENCRYPTED;
+ if (file_is_verity(inode))
+ new_fl |= S_VERITY;
+ if (flags & F2FS_CASEFOLD_FL)
+ new_fl |= S_CASEFOLD;
inode_set_flags(inode, new_fl,
S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC|
- S_ENCRYPTED);
+ S_ENCRYPTED|S_VERITY|S_CASEFOLD);
}
static void __get_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
@@ -75,7 +77,7 @@ static int __written_first_block(struct f2fs_sb_info *sbi,
if (!__is_valid_data_blkaddr(addr))
return 1;
- if (!f2fs_is_valid_blkaddr(sbi, addr, DATA_GENERIC))
+ if (!f2fs_is_valid_blkaddr(sbi, addr, DATA_GENERIC_ENHANCE))
return -EFSCORRUPTED;
return 0;
}
@@ -106,7 +108,7 @@ static void __recover_inline_status(struct inode *inode, struct page *ipage)
while (start < end) {
if (*start++) {
- f2fs_wait_on_page_writeback(ipage, NODE, true);
+ f2fs_wait_on_page_writeback(ipage, NODE, true, true);
set_inode_flag(inode, FI_DATA_EXIST);
set_raw_inline(inode, F2FS_INODE(ipage));
@@ -121,7 +123,7 @@ static bool f2fs_enable_inode_chksum(struct f2fs_sb_info *sbi, struct page *page
{
struct f2fs_inode *ri = &F2FS_NODE(page)->i;
- if (!f2fs_sb_has_inode_chksum(sbi->sb))
+ if (!f2fs_sb_has_inode_chksum(sbi))
return false;
if (!IS_INODE(page) || !(ri->i_inline & F2FS_EXTRA_ATTR))
@@ -178,9 +180,8 @@ bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page)
calculated = f2fs_inode_chksum(sbi, page);
if (provided != calculated)
- f2fs_msg(sbi->sb, KERN_WARNING,
- "checksum invalid, nid = %lu, ino_of_node = %x, %x vs. %x",
- page->index, ino_of_node(page), provided, calculated);
+ f2fs_warn(sbi, "checksum invalid, nid = %lu, ino_of_node = %x, %x vs. %x",
+ page->index, ino_of_node(page), provided, calculated);
return provided == calculated;
}
@@ -199,55 +200,59 @@ static bool sanity_check_inode(struct inode *inode, struct page *node_page)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
struct f2fs_inode_info *fi = F2FS_I(inode);
+ struct f2fs_inode *ri = F2FS_INODE(node_page);
unsigned long long iblocks;
iblocks = le64_to_cpu(F2FS_INODE(node_page)->i_blocks);
if (!iblocks) {
set_sbi_flag(sbi, SBI_NEED_FSCK);
- f2fs_msg(sbi->sb, KERN_WARNING,
- "%s: corrupted inode i_blocks i_ino=%lx iblocks=%llu, "
- "run fsck to fix.",
- __func__, inode->i_ino, iblocks);
+ f2fs_warn(sbi, "%s: corrupted inode i_blocks i_ino=%lx iblocks=%llu, run fsck to fix.",
+ __func__, inode->i_ino, iblocks);
return false;
}
if (ino_of_node(node_page) != nid_of_node(node_page)) {
set_sbi_flag(sbi, SBI_NEED_FSCK);
- f2fs_msg(sbi->sb, KERN_WARNING,
- "%s: corrupted inode footer i_ino=%lx, ino,nid: "
- "[%u, %u] run fsck to fix.",
- __func__, inode->i_ino,
- ino_of_node(node_page), nid_of_node(node_page));
+ f2fs_warn(sbi, "%s: corrupted inode footer i_ino=%lx, ino,nid: [%u, %u] run fsck to fix.",
+ __func__, inode->i_ino,
+ ino_of_node(node_page), nid_of_node(node_page));
return false;
}
- if (f2fs_sb_has_flexible_inline_xattr(sbi->sb)
+ if (f2fs_sb_has_flexible_inline_xattr(sbi)
&& !f2fs_has_extra_attr(inode)) {
set_sbi_flag(sbi, SBI_NEED_FSCK);
- f2fs_msg(sbi->sb, KERN_WARNING,
- "%s: corrupted inode ino=%lx, run fsck to fix.",
- __func__, inode->i_ino);
+ f2fs_warn(sbi, "%s: corrupted inode ino=%lx, run fsck to fix.",
+ __func__, inode->i_ino);
return false;
}
if (f2fs_has_extra_attr(inode) &&
- !f2fs_sb_has_extra_attr(sbi->sb)) {
+ !f2fs_sb_has_extra_attr(sbi)) {
set_sbi_flag(sbi, SBI_NEED_FSCK);
- f2fs_msg(sbi->sb, KERN_WARNING,
- "%s: inode (ino=%lx) is with extra_attr, "
- "but extra_attr feature is off",
- __func__, inode->i_ino);
+ f2fs_warn(sbi, "%s: inode (ino=%lx) is with extra_attr, but extra_attr feature is off",
+ __func__, inode->i_ino);
return false;
}
if (fi->i_extra_isize > F2FS_TOTAL_EXTRA_ATTR_SIZE ||
fi->i_extra_isize % sizeof(__le32)) {
set_sbi_flag(sbi, SBI_NEED_FSCK);
- f2fs_msg(sbi->sb, KERN_WARNING,
- "%s: inode (ino=%lx) has corrupted i_extra_isize: %d, "
- "max: %zu",
- __func__, inode->i_ino, fi->i_extra_isize,
- F2FS_TOTAL_EXTRA_ATTR_SIZE);
+ f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_extra_isize: %d, max: %zu",
+ __func__, inode->i_ino, fi->i_extra_isize,
+ F2FS_TOTAL_EXTRA_ATTR_SIZE);
+ return false;
+ }
+
+ if (f2fs_has_extra_attr(inode) &&
+ f2fs_sb_has_flexible_inline_xattr(sbi) &&
+ f2fs_has_inline_xattr(inode) &&
+ (!fi->i_inline_xattr_size ||
+ fi->i_inline_xattr_size > MAX_INLINE_XATTR_SIZE)) {
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
+ f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_inline_xattr_size: %d, max: %zu",
+ __func__, inode->i_ino, fi->i_inline_xattr_size,
+ MAX_INLINE_XATTR_SIZE);
return false;
}
@@ -255,15 +260,14 @@ static bool sanity_check_inode(struct inode *inode, struct page *node_page)
struct extent_info *ei = &F2FS_I(inode)->extent_tree->largest;
if (ei->len &&
- (!f2fs_is_valid_blkaddr(sbi, ei->blk, DATA_GENERIC) ||
+ (!f2fs_is_valid_blkaddr(sbi, ei->blk,
+ DATA_GENERIC_ENHANCE) ||
!f2fs_is_valid_blkaddr(sbi, ei->blk + ei->len - 1,
- DATA_GENERIC))) {
+ DATA_GENERIC_ENHANCE))) {
set_sbi_flag(sbi, SBI_NEED_FSCK);
- f2fs_msg(sbi->sb, KERN_WARNING,
- "%s: inode (ino=%lx) extent info [%u, %u, %u] "
- "is incorrect, run fsck to fix",
- __func__, inode->i_ino,
- ei->blk, ei->fofs, ei->len);
+ f2fs_warn(sbi, "%s: inode (ino=%lx) extent info [%u, %u, %u] is incorrect, run fsck to fix",
+ __func__, inode->i_ino,
+ ei->blk, ei->fofs, ei->len);
return false;
}
}
@@ -271,22 +275,48 @@ static bool sanity_check_inode(struct inode *inode, struct page *node_page)
if (f2fs_has_inline_data(inode) &&
(!S_ISREG(inode->i_mode) && !S_ISLNK(inode->i_mode))) {
set_sbi_flag(sbi, SBI_NEED_FSCK);
- f2fs_msg(sbi->sb, KERN_WARNING,
- "%s: inode (ino=%lx, mode=%u) should not have "
- "inline_data, run fsck to fix",
- __func__, inode->i_ino, inode->i_mode);
+ f2fs_warn(sbi, "%s: inode (ino=%lx, mode=%u) should not have inline_data, run fsck to fix",
+ __func__, inode->i_ino, inode->i_mode);
return false;
}
if (f2fs_has_inline_dentry(inode) && !S_ISDIR(inode->i_mode)) {
set_sbi_flag(sbi, SBI_NEED_FSCK);
- f2fs_msg(sbi->sb, KERN_WARNING,
- "%s: inode (ino=%lx, mode=%u) should not have "
- "inline_dentry, run fsck to fix",
- __func__, inode->i_ino, inode->i_mode);
+ f2fs_warn(sbi, "%s: inode (ino=%lx, mode=%u) should not have inline_dentry, run fsck to fix",
+ __func__, inode->i_ino, inode->i_mode);
return false;
}
+ if (f2fs_has_extra_attr(inode) && f2fs_sb_has_compression(sbi) &&
+ fi->i_flags & F2FS_COMPR_FL &&
+ F2FS_FITS_IN_INODE(ri, fi->i_extra_isize,
+ i_log_cluster_size)) {
+ if (ri->i_compress_algorithm >= COMPRESS_MAX) {
+ f2fs_warn(sbi, "%s: inode (ino=%lx) has unsupported "
+ "compress algorithm: %u, run fsck to fix",
+ __func__, inode->i_ino,
+ ri->i_compress_algorithm);
+ return false;
+ }
+ if (le64_to_cpu(ri->i_compr_blocks) >
+ SECTOR_TO_BLOCK(inode->i_blocks)) {
+ f2fs_warn(sbi, "%s: inode (ino=%lx) has inconsistent "
+ "i_compr_blocks:%llu, i_blocks:%lu, run fsck to fix",
+ __func__, inode->i_ino,
+ le64_to_cpu(ri->i_compr_blocks),
+ SECTOR_TO_BLOCK(inode->i_blocks));
+ return false;
+ }
+ if (ri->i_log_cluster_size < MIN_COMPRESS_LOG_SIZE ||
+ ri->i_log_cluster_size > MAX_COMPRESS_LOG_SIZE) {
+ f2fs_warn(sbi, "%s: inode (ino=%lx) has unsupported "
+ "log cluster size: %u, run fsck to fix",
+ __func__, inode->i_ino,
+ ri->i_log_cluster_size);
+ return false;
+ }
+ }
+
return true;
}
@@ -330,7 +360,9 @@ static int do_read_inode(struct inode *inode)
le16_to_cpu(ri->i_gc_failures);
fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid);
fi->i_flags = le32_to_cpu(ri->i_flags);
- fi->flags = 0;
+ if (S_ISREG(inode->i_mode))
+ fi->i_flags &= ~F2FS_PROJINHERIT_FL;
+ bitmap_zero(fi->flags, FI_MAX);
fi->i_advise = ri->i_advise;
fi->i_pino = le32_to_cpu(ri->i_pino);
fi->i_dir_level = ri->i_dir_level;
@@ -343,7 +375,7 @@ static int do_read_inode(struct inode *inode)
fi->i_extra_isize = f2fs_has_extra_attr(inode) ?
le16_to_cpu(ri->i_extra_isize) : 0;
- if (f2fs_sb_has_flexible_inline_xattr(sbi->sb)) {
+ if (f2fs_sb_has_flexible_inline_xattr(sbi)) {
fi->i_inline_xattr_size = le16_to_cpu(ri->i_inline_xattr_size);
} else if (f2fs_has_inline_xattr(inode) ||
f2fs_has_inline_dentry(inode)) {
@@ -393,19 +425,31 @@ static int do_read_inode(struct inode *inode)
if (fi->i_flags & F2FS_PROJINHERIT_FL)
set_inode_flag(inode, FI_PROJ_INHERIT);
- if (f2fs_has_extra_attr(inode) && f2fs_sb_has_project_quota(sbi->sb) &&
+ if (f2fs_has_extra_attr(inode) && f2fs_sb_has_project_quota(sbi) &&
F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid))
i_projid = (projid_t)le32_to_cpu(ri->i_projid);
else
i_projid = F2FS_DEF_PROJID;
fi->i_projid = make_kprojid(&init_user_ns, i_projid);
- if (f2fs_has_extra_attr(inode) && f2fs_sb_has_inode_crtime(sbi->sb) &&
+ if (f2fs_has_extra_attr(inode) && f2fs_sb_has_inode_crtime(sbi) &&
F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) {
fi->i_crtime.tv_sec = le64_to_cpu(ri->i_crtime);
fi->i_crtime.tv_nsec = le32_to_cpu(ri->i_crtime_nsec);
}
+ if (f2fs_has_extra_attr(inode) && f2fs_sb_has_compression(sbi) &&
+ (fi->i_flags & F2FS_COMPR_FL)) {
+ if (F2FS_FITS_IN_INODE(ri, fi->i_extra_isize,
+ i_log_cluster_size)) {
+ fi->i_compr_blocks = le64_to_cpu(ri->i_compr_blocks);
+ fi->i_compress_algorithm = ri->i_compress_algorithm;
+ fi->i_log_cluster_size = ri->i_log_cluster_size;
+ fi->i_cluster_size = 1 << fi->i_log_cluster_size;
+ set_inode_flag(inode, FI_COMPRESSED_FILE);
+ }
+ }
+
F2FS_I(inode)->i_disk_time[0] = inode->i_atime;
F2FS_I(inode)->i_disk_time[1] = inode->i_ctime;
F2FS_I(inode)->i_disk_time[2] = inode->i_mtime;
@@ -415,6 +459,8 @@ static int do_read_inode(struct inode *inode)
stat_inc_inline_xattr(inode);
stat_inc_inline_inode(inode);
stat_inc_inline_dir(inode);
+ stat_inc_compr_inode(inode);
+ stat_add_compr_blocks(inode, F2FS_I(inode)->i_compr_blocks);
return 0;
}
@@ -456,7 +502,7 @@ struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
inode->i_mapping->a_ops = &f2fs_dblock_aops;
inode_nohighmem(inode);
} else if (S_ISLNK(inode->i_mode)) {
- if (f2fs_encrypted_inode(inode))
+ if (file_is_encrypt(inode))
inode->i_op = &f2fs_encrypted_symlink_inode_operations;
else
inode->i_op = &f2fs_symlink_inode_operations;
@@ -489,7 +535,7 @@ struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino)
inode = f2fs_iget(sb, ino);
if (IS_ERR(inode)) {
if (PTR_ERR(inode) == -ENOMEM) {
- congestion_wait(BLK_RW_ASYNC, HZ/50);
+ congestion_wait(BLK_RW_ASYNC, DEFAULT_IO_TIMEOUT);
goto retry;
}
}
@@ -501,7 +547,7 @@ void f2fs_update_inode(struct inode *inode, struct page *node_page)
struct f2fs_inode *ri;
struct extent_tree *et = F2FS_I(inode)->extent_tree;
- f2fs_wait_on_page_writeback(node_page, NODE, true);
+ f2fs_wait_on_page_writeback(node_page, NODE, true, true);
set_page_dirty(node_page);
f2fs_inode_synced(inode);
@@ -546,11 +592,11 @@ void f2fs_update_inode(struct inode *inode, struct page *node_page)
if (f2fs_has_extra_attr(inode)) {
ri->i_extra_isize = cpu_to_le16(F2FS_I(inode)->i_extra_isize);
- if (f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(inode)->sb))
+ if (f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(inode)))
ri->i_inline_xattr_size =
cpu_to_le16(F2FS_I(inode)->i_inline_xattr_size);
- if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)->sb) &&
+ if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)) &&
F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
i_projid)) {
projid_t i_projid;
@@ -560,7 +606,7 @@ void f2fs_update_inode(struct inode *inode, struct page *node_page)
ri->i_projid = cpu_to_le32(i_projid);
}
- if (f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)->sb) &&
+ if (f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)) &&
F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
i_crtime)) {
ri->i_crtime =
@@ -568,6 +614,17 @@ void f2fs_update_inode(struct inode *inode, struct page *node_page)
ri->i_crtime_nsec =
cpu_to_le32(F2FS_I(inode)->i_crtime.tv_nsec);
}
+
+ if (f2fs_sb_has_compression(F2FS_I_SB(inode)) &&
+ F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
+ i_log_cluster_size)) {
+ ri->i_compr_blocks =
+ cpu_to_le64(F2FS_I(inode)->i_compr_blocks);
+ ri->i_compress_algorithm =
+ F2FS_I(inode)->i_compress_algorithm;
+ ri->i_log_cluster_size =
+ F2FS_I(inode)->i_log_cluster_size;
+ }
}
__set_inode_rdev(inode, ri);
@@ -621,6 +678,9 @@ int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc)
!is_inode_flag_set(inode, FI_DIRTY_INODE))
return 0;
+ if (!f2fs_is_checkpoint_ready(sbi))
+ return -ENOSPC;
+
/*
* We need to balance fs here to prevent from producing dirty node pages
* during the urgent cleaning time when runing out of free sections.
@@ -659,7 +719,11 @@ void f2fs_evict_inode(struct inode *inode)
if (inode->i_nlink || is_bad_inode(inode))
goto no_delete;
- dquot_initialize(inode);
+ err = dquot_initialize(inode);
+ if (err) {
+ err = 0;
+ set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
+ }
f2fs_remove_ino_entry(sbi, inode->i_ino, APPEND_INO);
f2fs_remove_ino_entry(sbi, inode->i_ino, UPDATE_INO);
@@ -673,7 +737,7 @@ void f2fs_evict_inode(struct inode *inode)
err = f2fs_truncate(inode);
if (time_to_inject(sbi, FAULT_EVICT_INODE)) {
- f2fs_show_injection_info(FAULT_EVICT_INODE);
+ f2fs_show_injection_info(sbi, FAULT_EVICT_INODE);
err = -EIO;
}
@@ -691,9 +755,11 @@ void f2fs_evict_inode(struct inode *inode)
goto retry;
}
- if (err)
+ if (err) {
f2fs_update_inode_page(inode);
- dquot_free_inode(inode);
+ if (dquot_initialize_needed(inode))
+ set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
+ }
sb_end_intwrite(inode->i_sb);
no_delete:
dquot_drop(inode);
@@ -701,13 +767,16 @@ void f2fs_evict_inode(struct inode *inode)
stat_dec_inline_xattr(inode);
stat_dec_inline_dir(inode);
stat_dec_inline_inode(inode);
+ stat_dec_compr_inode(inode);
+ stat_sub_compr_blocks(inode, F2FS_I(inode)->i_compr_blocks);
- if (likely(!is_set_ckpt_flags(sbi, CP_ERROR_FLAG)))
+ if (likely(!f2fs_cp_error(sbi) &&
+ !is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE));
else
f2fs_inode_synced(inode);
- /* ino == 0, if f2fs_new_inode() was failed t*/
+ /* for the case f2fs_new_inode() was failed, .i_ino is zero, skip it */
if (inode->i_ino)
invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino,
inode->i_ino);
@@ -731,6 +800,7 @@ void f2fs_evict_inode(struct inode *inode)
}
out_clear:
fscrypt_put_encryption_info(inode);
+ fsverity_cleanup_inode(inode);
clear_inode(inode);
}
@@ -765,8 +835,7 @@ void f2fs_handle_failed_inode(struct inode *inode)
err = f2fs_get_node_info(sbi, inode->i_ino, &ni);
if (err) {
set_sbi_flag(sbi, SBI_NEED_FSCK);
- f2fs_msg(sbi->sb, KERN_WARNING,
- "May loss orphan inode, run fsck to fix.");
+ f2fs_warn(sbi, "May loss orphan inode, run fsck to fix.");
goto out;
}
@@ -774,8 +843,7 @@ void f2fs_handle_failed_inode(struct inode *inode)
err = f2fs_acquire_orphan_inode(sbi);
if (err) {
set_sbi_flag(sbi, SBI_NEED_FSCK);
- f2fs_msg(sbi->sb, KERN_WARNING,
- "Too many orphan inodes, run fsck to fix.");
+ f2fs_warn(sbi, "Too many orphan inodes, run fsck to fix.");
} else {
f2fs_add_orphan_inode(inode);
}
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index edc8085..0b2a965 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -1,24 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* fs/f2fs/namei.c
*
* Copyright (c) 2012 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/fs.h>
#include <linux/f2fs_fs.h>
#include <linux/pagemap.h>
#include <linux/sched.h>
#include <linux/ctype.h>
+#include <linux/random.h>
#include <linux/dcache.h>
#include <linux/namei.h>
#include <linux/quotaops.h>
#include "f2fs.h"
#include "node.h"
+#include "segment.h"
#include "xattr.h"
#include "acl.h"
#include <trace/events/f2fs.h>
@@ -52,7 +51,7 @@ static struct inode *f2fs_new_inode(struct inode *dir, umode_t mode)
inode->i_blocks = 0;
inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
F2FS_I(inode)->i_crtime = inode->i_mtime;
- inode->i_generation = sbi->s_next_generation++;
+ inode->i_generation = prandom_u32();
if (S_ISDIR(inode->i_mode))
F2FS_I(inode)->i_current_depth = 1;
@@ -63,7 +62,7 @@ static struct inode *f2fs_new_inode(struct inode *dir, umode_t mode)
goto fail;
}
- if (f2fs_sb_has_project_quota(sbi->sb) &&
+ if (f2fs_sb_has_project_quota(sbi) &&
(F2FS_I(dir)->i_flags & F2FS_PROJINHERIT_FL))
F2FS_I(inode)->i_projid = F2FS_I(dir)->i_projid;
else
@@ -74,18 +73,12 @@ static struct inode *f2fs_new_inode(struct inode *dir, umode_t mode)
if (err)
goto fail_drop;
- err = dquot_alloc_inode(inode);
- if (err)
- goto fail_drop;
-
set_inode_flag(inode, FI_NEW_INODE);
- /* If the directory encrypted, then we should encrypt the inode. */
- if ((f2fs_encrypted_inode(dir) || DUMMY_ENCRYPTION_ENABLED(sbi)) &&
- f2fs_may_encrypt(inode))
+ if (f2fs_may_encrypt(dir, inode))
f2fs_set_encrypted_inode(inode);
- if (f2fs_sb_has_extra_attr(sbi->sb)) {
+ if (f2fs_sb_has_extra_attr(sbi)) {
set_inode_flag(inode, FI_EXTRA_ATTR);
F2FS_I(inode)->i_extra_isize = F2FS_TOTAL_EXTRA_ATTR_SIZE;
}
@@ -98,7 +91,7 @@ static struct inode *f2fs_new_inode(struct inode *dir, umode_t mode)
if (f2fs_may_inline_dentry(inode))
set_inode_flag(inode, FI_INLINE_DENTRY);
- if (f2fs_sb_has_flexible_inline_xattr(sbi->sb)) {
+ if (f2fs_sb_has_flexible_inline_xattr(sbi)) {
f2fs_bug_on(sbi, !f2fs_has_extra_attr(inode));
if (f2fs_has_inline_xattr(inode))
xattr_size = F2FS_OPTION(sbi).inline_xattr_size;
@@ -124,6 +117,13 @@ static struct inode *f2fs_new_inode(struct inode *dir, umode_t mode)
if (F2FS_I(inode)->i_flags & F2FS_PROJINHERIT_FL)
set_inode_flag(inode, FI_PROJ_INHERIT);
+ if (f2fs_sb_has_compression(sbi)) {
+ /* Inherit the compression flag in directory */
+ if ((F2FS_I(dir)->i_flags & F2FS_COMPR_FL) &&
+ f2fs_may_compress(inode))
+ set_compress_context(inode);
+ }
+
f2fs_set_inode_flags(inode);
trace_f2fs_new_inode(inode, 0);
@@ -148,12 +148,15 @@ static struct inode *f2fs_new_inode(struct inode *dir, umode_t mode)
return ERR_PTR(err);
}
-static int is_extension_exist(const unsigned char *s, const char *sub)
+static inline int is_extension_exist(const unsigned char *s, const char *sub)
{
size_t slen = strlen(s);
size_t sublen = strlen(sub);
int i;
+ if (sublen == 1 && *sub == '*')
+ return 1;
+
/*
* filename format of multimedia file should be defined as:
* "filename + '.' + extension + (optional: '.' + temp extension)".
@@ -172,7 +175,7 @@ static int is_extension_exist(const unsigned char *s, const char *sub)
}
/*
- * Set multimedia files as cold files for hot/cold data separation
+ * Set file's temperature for hot/cold data separation
*/
static inline void set_file_temperature(struct f2fs_sb_info *sbi, struct inode *inode,
const unsigned char *name)
@@ -186,16 +189,19 @@ static inline void set_file_temperature(struct f2fs_sb_info *sbi, struct inode *
hot_count = sbi->raw_super->hot_ext_count;
for (i = 0; i < cold_count + hot_count; i++) {
- if (!is_extension_exist(name, extlist[i]))
- continue;
- if (i < cold_count)
- file_set_cold(inode);
- else
- file_set_hot(inode);
- break;
+ if (is_extension_exist(name, extlist[i]))
+ break;
}
up_read(&sbi->sb_lock);
+
+ if (i == cold_count + hot_count)
+ return;
+
+ if (i < cold_count)
+ file_set_cold(inode);
+ else
+ file_set_hot(inode);
}
int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
@@ -264,6 +270,45 @@ int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
return 0;
}
+static void set_compress_inode(struct f2fs_sb_info *sbi, struct inode *inode,
+ const unsigned char *name)
+{
+ __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list;
+ unsigned char (*ext)[F2FS_EXTENSION_LEN];
+ unsigned int ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt;
+ int i, cold_count, hot_count;
+
+ if (!f2fs_sb_has_compression(sbi) ||
+ is_inode_flag_set(inode, FI_COMPRESSED_FILE) ||
+ F2FS_I(inode)->i_flags & F2FS_NOCOMP_FL ||
+ !f2fs_may_compress(inode))
+ return;
+
+ down_read(&sbi->sb_lock);
+
+ cold_count = le32_to_cpu(sbi->raw_super->extension_count);
+ hot_count = sbi->raw_super->hot_ext_count;
+
+ for (i = cold_count; i < cold_count + hot_count; i++) {
+ if (is_extension_exist(name, extlist[i])) {
+ up_read(&sbi->sb_lock);
+ return;
+ }
+ }
+
+ up_read(&sbi->sb_lock);
+
+ ext = F2FS_OPTION(sbi).extensions;
+
+ for (i = 0; i < ext_cnt; i++) {
+ if (!is_extension_exist(name, ext[i]))
+ continue;
+
+ set_compress_context(inode);
+ return;
+ }
+}
+
static int f2fs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
bool excl)
{
@@ -274,6 +319,8 @@ static int f2fs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
if (unlikely(f2fs_cp_error(sbi)))
return -EIO;
+ if (!f2fs_is_checkpoint_ready(sbi))
+ return -ENOSPC;
err = dquot_initialize(dir);
if (err)
@@ -286,6 +333,8 @@ static int f2fs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
if (!test_opt(sbi, DISABLE_EXT_IDENTIFY))
set_file_temperature(sbi, inode, dentry->d_name.name);
+ set_compress_inode(sbi, inode, dentry->d_name.name);
+
inode->i_op = &f2fs_file_inode_operations;
inode->i_fop = &f2fs_file_operations;
inode->i_mapping->a_ops = &f2fs_dblock_aops;
@@ -320,6 +369,8 @@ static int f2fs_link(struct dentry *old_dentry, struct inode *dir,
if (unlikely(f2fs_cp_error(sbi)))
return -EIO;
+ if (!f2fs_is_checkpoint_ready(sbi))
+ return -ENOSPC;
err = fscrypt_prepare_link(old_dentry, dir, dentry);
if (err)
@@ -381,9 +432,8 @@ static int __recover_dot_dentries(struct inode *dir, nid_t pino)
int err = 0;
if (f2fs_readonly(sbi->sb)) {
- f2fs_msg(sbi->sb, KERN_INFO,
- "skip recovering inline_dots inode (ino:%lu, pino:%u) "
- "in readonly mountpoint", dir->i_ino, pino);
+ f2fs_info(sbi, "skip recovering inline_dots inode (ino:%lu, pino:%u) in readonly mountpoint",
+ dir->i_ino, pino);
return 0;
}
@@ -432,7 +482,7 @@ static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry,
nid_t ino = -1;
int err = 0;
unsigned int root_ino = F2FS_ROOT_INO(F2FS_I_SB(dir));
- struct fscrypt_name fname;
+ struct f2fs_filename fname;
trace_f2fs_lookup_start(dir, dentry, flags);
@@ -441,19 +491,21 @@ static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry,
goto out;
}
- err = fscrypt_prepare_lookup(dir, dentry, &fname);
+ err = f2fs_prepare_lookup(dir, dentry, &fname);
+ generic_set_encrypted_ci_d_ops(dir, dentry);
if (err == -ENOENT)
goto out_splice;
if (err)
goto out;
de = __f2fs_find_entry(dir, &fname, &page);
- fscrypt_free_filename(&fname);
+ f2fs_free_filename(&fname);
if (!de) {
if (IS_ERR(page)) {
err = PTR_ERR(page);
goto out;
}
+ err = -ENOENT;
goto out_splice;
}
@@ -477,19 +529,29 @@ static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry,
if (err)
goto out_iput;
}
- if (f2fs_encrypted_inode(dir) &&
+ if (IS_ENCRYPTED(dir) &&
(S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)) &&
!fscrypt_has_permitted_context(dir, inode)) {
- f2fs_msg(inode->i_sb, KERN_WARNING,
- "Inconsistent encryption contexts: %lu/%lu",
- dir->i_ino, inode->i_ino);
+ f2fs_warn(F2FS_I_SB(inode), "Inconsistent encryption contexts: %lu/%lu",
+ dir->i_ino, inode->i_ino);
err = -EPERM;
goto out_iput;
}
out_splice:
+#ifdef CONFIG_UNICODE
+ if (!inode && IS_CASEFOLDED(dir)) {
+ /* Eventually we want to call d_add_ci(dentry, NULL)
+ * for negative dentries in the encoding case as
+ * well. For now, prevent the negative dentry
+ * from being cached.
+ */
+ trace_f2fs_lookup_end(dir, dentry, ino, err);
+ return NULL;
+ }
+#endif
new = d_splice_alias(inode, dentry);
err = PTR_ERR_OR_ZERO(new);
- trace_f2fs_lookup_end(dir, dentry, ino, err);
+ trace_f2fs_lookup_end(dir, dentry, ino, !new ? -ENOENT : err);
return new;
out_iput:
iput(inode);
@@ -504,7 +566,7 @@ static int f2fs_unlink(struct inode *dir, struct dentry *dentry)
struct inode *inode = d_inode(dentry);
struct f2fs_dir_entry *de;
struct page *page;
- int err = -ENOENT;
+ int err;
trace_f2fs_unlink_enter(dir, dentry);
@@ -535,6 +597,16 @@ static int f2fs_unlink(struct inode *dir, struct dentry *dentry)
goto fail;
}
f2fs_delete_entry(de, page, dir, inode);
+#ifdef CONFIG_UNICODE
+ /* VFS negative dentries are incompatible with Encoding and
+ * Case-insensitiveness. Eventually we'll want avoid
+ * invalidating the dentries here, alongside with returning the
+ * negative dentries at f2fs_lookup(), when it is better
+ * supported by the VFS for the CI case.
+ */
+ if (IS_CASEFOLDED(dir))
+ d_invalidate(dentry);
+#endif
f2fs_unlock_op(sbi);
if (IS_DIRSYNC(dir))
@@ -569,6 +641,8 @@ static int f2fs_symlink(struct inode *dir, struct dentry *dentry,
if (unlikely(f2fs_cp_error(sbi)))
return -EIO;
+ if (!f2fs_is_checkpoint_ready(sbi))
+ return -ENOSPC;
err = fscrypt_prepare_symlink(dir, symname, len, dir->i_sb->s_blocksize,
&disk_link);
@@ -632,7 +706,7 @@ static int f2fs_symlink(struct inode *dir, struct dentry *dentry,
f2fs_handle_failed_inode(inode);
out_free_encrypted_link:
if (disk_link.name != (unsigned char *)symname)
- kfree(disk_link.name);
+ kvfree(disk_link.name);
return err;
}
@@ -698,6 +772,8 @@ static int f2fs_mknod(struct inode *dir, struct dentry *dentry,
if (unlikely(f2fs_cp_error(sbi)))
return -EIO;
+ if (!f2fs_is_checkpoint_ready(sbi))
+ return -ENOSPC;
err = dquot_initialize(dir);
if (err)
@@ -801,12 +877,8 @@ static int f2fs_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
if (unlikely(f2fs_cp_error(sbi)))
return -EIO;
-
- if (f2fs_encrypted_inode(dir) || DUMMY_ENCRYPTION_ENABLED(sbi)) {
- int err = fscrypt_get_encryption_info(dir);
- if (err)
- return err;
- }
+ if (!f2fs_is_checkpoint_ready(sbi))
+ return -ENOSPC;
return __f2fs_tmpfile(dir, dentry, mode, NULL);
}
@@ -827,22 +899,37 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
struct inode *old_inode = d_inode(old_dentry);
struct inode *new_inode = d_inode(new_dentry);
struct inode *whiteout = NULL;
- struct page *old_dir_page;
+ struct page *old_dir_page = NULL;
struct page *old_page, *new_page = NULL;
struct f2fs_dir_entry *old_dir_entry = NULL;
struct f2fs_dir_entry *old_entry;
struct f2fs_dir_entry *new_entry;
- bool is_old_inline = f2fs_has_inline_dentry(old_dir);
- int err = -ENOENT;
+ int err;
if (unlikely(f2fs_cp_error(sbi)))
return -EIO;
+ if (!f2fs_is_checkpoint_ready(sbi))
+ return -ENOSPC;
if (is_inode_flag_set(new_dir, FI_PROJ_INHERIT) &&
(!projid_eq(F2FS_I(new_dir)->i_projid,
F2FS_I(old_dentry->d_inode)->i_projid)))
return -EXDEV;
+ /*
+ * If new_inode is null, the below renaming flow will
+ * add a link in old_dir which can conver inline_dir.
+ * After then, if we failed to get the entry due to other
+ * reasons like ENOMEM, we had to remove the new entry.
+ * Instead of adding such the error handling routine, let's
+ * simply convert first here.
+ */
+ if (old_dir == new_dir && !new_inode) {
+ err = f2fs_try_convert_inline_dir(old_dir, new_dentry);
+ if (err)
+ return err;
+ }
+
if (flags & RENAME_WHITEOUT) {
err = f2fs_create_whiteout(old_dir, &whiteout);
if (err)
@@ -863,6 +950,7 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
goto out;
}
+ err = -ENOENT;
old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page);
if (!old_entry) {
if (IS_ERR(old_page))
@@ -903,6 +991,7 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
goto put_out_dir;
f2fs_set_link(new_dir, new_entry, new_page, old_inode);
+ new_page = NULL;
new_inode->i_ctime = current_time(new_inode);
down_write(&F2FS_I(new_inode)->i_sem);
@@ -928,28 +1017,6 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
if (old_dir_entry)
f2fs_i_links_write(new_dir, true);
-
- /*
- * old entry and new entry can locate in the same inline
- * dentry in inode, when attaching new entry in inline dentry,
- * it could force inline dentry conversion, after that,
- * old_entry and old_page will point to wrong address, in
- * order to avoid this, let's do the check and update here.
- */
- if (is_old_inline && !f2fs_has_inline_dentry(old_dir)) {
- f2fs_put_page(old_page, 0);
- old_page = NULL;
-
- old_entry = f2fs_find_entry(old_dir,
- &old_dentry->d_name, &old_page);
- if (!old_entry) {
- err = -ENOENT;
- if (IS_ERR(old_page))
- err = PTR_ERR(old_page);
- f2fs_unlock_op(sbi);
- goto out_dir;
- }
- }
}
down_write(&F2FS_I(old_inode)->i_sem);
@@ -964,6 +1031,7 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
f2fs_mark_inode_dirty_sync(old_inode, false);
f2fs_delete_entry(old_entry, old_page, old_dir, NULL);
+ old_page = NULL;
if (whiteout) {
set_inode_flag(whiteout, FI_INC_LINK);
@@ -997,12 +1065,13 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir))
f2fs_sync_fs(sbi->sb, 1);
+
+ f2fs_update_time(sbi, REQ_TIME);
return 0;
put_out_dir:
f2fs_unlock_op(sbi);
- if (new_page)
- f2fs_put_page(new_page, 0);
+ f2fs_put_page(new_page, 0);
out_dir:
if (old_dir_entry)
f2fs_put_page(old_dir_page, 0);
@@ -1025,10 +1094,12 @@ static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
struct f2fs_dir_entry *old_dir_entry = NULL, *new_dir_entry = NULL;
struct f2fs_dir_entry *old_entry, *new_entry;
int old_nlink = 0, new_nlink = 0;
- int err = -ENOENT;
+ int err;
if (unlikely(f2fs_cp_error(sbi)))
return -EIO;
+ if (!f2fs_is_checkpoint_ready(sbi))
+ return -ENOSPC;
if ((is_inode_flag_set(new_dir, FI_PROJ_INHERIT) &&
!projid_eq(F2FS_I(new_dir)->i_projid,
@@ -1046,6 +1117,7 @@ static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
if (err)
goto out;
+ err = -ENOENT;
old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page);
if (!old_entry) {
if (IS_ERR(old_page))
@@ -1157,6 +1229,8 @@ static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir))
f2fs_sync_fs(sbi->sb, 1);
+
+ f2fs_update_time(sbi, REQ_TIME);
return 0;
out_new_dir:
if (new_dir_entry) {
@@ -1232,9 +1306,7 @@ const struct inode_operations f2fs_encrypted_symlink_inode_operations = {
.get_link = f2fs_encrypted_get_link,
.getattr = f2fs_encrypted_symlink_getattr,
.setattr = f2fs_setattr,
-#ifdef CONFIG_F2FS_FS_XATTR
.listxattr = f2fs_listxattr,
-#endif
};
const struct inode_operations f2fs_dir_inode_operations = {
@@ -1252,18 +1324,15 @@ const struct inode_operations f2fs_dir_inode_operations = {
.setattr = f2fs_setattr,
.get_acl = f2fs_get_acl,
.set_acl = f2fs_set_acl,
-#ifdef CONFIG_F2FS_FS_XATTR
.listxattr = f2fs_listxattr,
-#endif
+ .fiemap = f2fs_fiemap,
};
const struct inode_operations f2fs_symlink_inode_operations = {
.get_link = f2fs_get_link,
.getattr = f2fs_getattr,
.setattr = f2fs_setattr,
-#ifdef CONFIG_F2FS_FS_XATTR
.listxattr = f2fs_listxattr,
-#endif
};
const struct inode_operations f2fs_special_inode_operations = {
@@ -1271,7 +1340,5 @@ const struct inode_operations f2fs_special_inode_operations = {
.setattr = f2fs_setattr,
.get_acl = f2fs_get_acl,
.set_acl = f2fs_set_acl,
-#ifdef CONFIG_F2FS_FS_XATTR
.listxattr = f2fs_listxattr,
-#endif
};
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index ff3f97b..1fadc3d 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* fs/f2fs/node.c
*
* Copyright (c) 2012 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/fs.h>
#include <linux/f2fs_fs.h>
@@ -37,9 +34,8 @@ int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid)
{
if (unlikely(nid < F2FS_ROOT_INO(sbi) || nid >= NM_I(sbi)->max_nid)) {
set_sbi_flag(sbi, SBI_NEED_FSCK);
- f2fs_msg(sbi->sb, KERN_WARNING,
- "%s: out-of-range nid=%x, run fsck to fix.",
- __func__, nid);
+ f2fs_warn(sbi, "%s: out-of-range nid=%x, run fsck to fix.",
+ __func__, nid);
return -EFSCORRUPTED;
}
return 0;
@@ -129,6 +125,8 @@ static struct page *get_next_nat_page(struct f2fs_sb_info *sbi, nid_t nid)
/* get current nat block page with lock */
src_page = get_current_nat_page(sbi, nid);
+ if (IS_ERR(src_page))
+ return src_page;
dst_page = f2fs_grab_meta_page(sbi, dst_off);
f2fs_bug_on(sbi, PageDirty(src_page));
@@ -455,7 +453,7 @@ static void set_node_addr(struct f2fs_sb_info *sbi, struct node_info *ni,
new_blkaddr == NULL_ADDR);
f2fs_bug_on(sbi, nat_get_blkaddr(e) == NEW_ADDR &&
new_blkaddr == NEW_ADDR);
- f2fs_bug_on(sbi, is_valid_data_blkaddr(sbi, nat_get_blkaddr(e)) &&
+ f2fs_bug_on(sbi, __is_valid_data_blkaddr(nat_get_blkaddr(e)) &&
new_blkaddr == NEW_ADDR);
/* increment version no as node is removed */
@@ -466,7 +464,7 @@ static void set_node_addr(struct f2fs_sb_info *sbi, struct node_info *ni,
/* change address */
nat_set_blkaddr(e, new_blkaddr);
- if (!is_valid_data_blkaddr(sbi, new_blkaddr))
+ if (!__is_valid_data_blkaddr(new_blkaddr))
set_nat_flag(e, IS_CHECKPOINTED, false);
__set_nat_cache_dirty(nm_i, e);
@@ -512,9 +510,6 @@ int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink)
return nr - nr_shrink;
}
-/*
- * This function always returns success
- */
int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
struct node_info *ni)
{
@@ -527,6 +522,7 @@ int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
struct f2fs_nat_entry ne;
struct nat_entry *e;
pgoff_t index;
+ block_t blkaddr;
int i;
ni->nid = nid;
@@ -570,6 +566,11 @@ int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
node_info_from_raw_nat(ni, &ne);
f2fs_put_page(page, 1);
cache:
+ blkaddr = le32_to_cpu(ne.block_addr);
+ if (__is_valid_data_blkaddr(blkaddr) &&
+ !f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC_ENHANCE))
+ return -EFAULT;
+
/* cache nat entry */
cache_nat_entry(sbi, nid, &ne);
return 0;
@@ -601,9 +602,9 @@ static void f2fs_ra_node_pages(struct page *parent, int start, int n)
pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs)
{
const long direct_index = ADDRS_PER_INODE(dn->inode);
- const long direct_blks = ADDRS_PER_BLOCK;
- const long indirect_blks = ADDRS_PER_BLOCK * NIDS_PER_BLOCK;
- unsigned int skipped_unit = ADDRS_PER_BLOCK;
+ const long direct_blks = ADDRS_PER_BLOCK(dn->inode);
+ const long indirect_blks = ADDRS_PER_BLOCK(dn->inode) * NIDS_PER_BLOCK;
+ unsigned int skipped_unit = ADDRS_PER_BLOCK(dn->inode);
int cur_level = dn->cur_level;
int max_level = dn->max_level;
pgoff_t base = 0;
@@ -637,9 +638,9 @@ static int get_node_path(struct inode *inode, long block,
int offset[4], unsigned int noffset[4])
{
const long direct_index = ADDRS_PER_INODE(inode);
- const long direct_blks = ADDRS_PER_BLOCK;
+ const long direct_blks = ADDRS_PER_BLOCK(inode);
const long dptrs_per_blk = NIDS_PER_BLOCK;
- const long indirect_blks = ADDRS_PER_BLOCK * NIDS_PER_BLOCK;
+ const long indirect_blks = ADDRS_PER_BLOCK(inode) * NIDS_PER_BLOCK;
const long dindirect_blks = indirect_blks * NIDS_PER_BLOCK;
int n = 0;
int level = 0;
@@ -710,8 +711,7 @@ static int get_node_path(struct inode *inode, long block,
/*
* Caller should call f2fs_put_dnode(dn).
* Also, it should grab and release a rwsem by calling f2fs_lock_op() and
- * f2fs_unlock_op() only if ro is not set RDONLY_NODE.
- * In the case of RDONLY_NODE, we don't need to care about mutex.
+ * f2fs_unlock_op() only if mode is set with ALLOC_NODE.
*/
int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode)
{
@@ -803,8 +803,7 @@ int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode)
dn->nid = nids[level];
dn->ofs_in_node = offset[level];
dn->node_page = npage[level];
- dn->data_blkaddr = datablock_addr(dn->inode,
- dn->node_page, dn->ofs_in_node);
+ dn->data_blkaddr = f2fs_data_blkaddr(dn);
return 0;
release_pages:
@@ -1107,7 +1106,7 @@ int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from)
ri->i_nid[offset[0] - NODE_DIR1_BLOCK]) {
lock_page(page);
BUG_ON(page->mapping != NODE_MAPPING(sbi));
- f2fs_wait_on_page_writeback(page, NODE, true);
+ f2fs_wait_on_page_writeback(page, NODE, true, true);
ri->i_nid[offset[0] - NODE_DIR1_BLOCK] = 0;
set_page_dirty(page);
unlock_page(page);
@@ -1182,10 +1181,9 @@ int f2fs_remove_inode_page(struct inode *inode)
}
if (unlikely(inode->i_blocks != 0 && inode->i_blocks != 8)) {
- f2fs_msg(F2FS_I_SB(inode)->sb, KERN_WARNING,
- "Inconsistent i_blocks, ino:%lu, iblocks:%llu",
- inode->i_ino,
- (unsigned long long)inode->i_blocks);
+ f2fs_warn(F2FS_I_SB(inode),
+ "f2fs_remove_inode_page: inconsistent i_blocks, ino:%lu, iblocks:%llu",
+ inode->i_ino, (unsigned long long)inode->i_blocks);
set_sbi_flag(F2FS_I_SB(inode), SBI_NEED_FSCK);
}
@@ -1241,7 +1239,7 @@ struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs)
new_ni.version = 0;
set_node_addr(sbi, &new_ni, NEW_ADDR, false);
- f2fs_wait_on_page_writeback(page, NODE, true);
+ f2fs_wait_on_page_writeback(page, NODE, true, true);
fill_node_footer(page, dn->nid, dn->inode->i_ino, ofs, true);
set_cold_node(page, S_ISDIR(dn->inode->i_mode));
if (!PageUptodate(page))
@@ -1300,7 +1298,13 @@ static int read_node_page(struct page *page, int op_flags)
}
fio.new_blkaddr = fio.old_blkaddr = ni.blk_addr;
- return f2fs_submit_page_bio(&fio);
+
+ err = f2fs_submit_page_bio(&fio);
+
+ if (!err)
+ f2fs_update_iostat(sbi, FS_NODE_READ_IO, F2FS_BLKSIZE);
+
+ return err;
}
/*
@@ -1375,11 +1379,10 @@ static struct page *__get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid,
}
page_hit:
if(unlikely(nid != nid_of_node(page))) {
- f2fs_msg(sbi->sb, KERN_WARNING, "inconsistent node block, "
- "nid:%lu, node_footer[nid:%u,ino:%u,ofs:%u,cpver:%llu,blkaddr:%u]",
- nid, nid_of_node(page), ino_of_node(page),
- ofs_of_node(page), cpver_of_node(page),
- next_blkaddr_of_node(page));
+ f2fs_warn(sbi, "inconsistent node block, nid:%lu, node_footer[nid:%u,ino:%u,ofs:%u,cpver:%llu,blkaddr:%u]",
+ nid, nid_of_node(page), ino_of_node(page),
+ ofs_of_node(page), cpver_of_node(page),
+ next_blkaddr_of_node(page));
err = -EINVAL;
out_err:
ClearPageUptodate(page);
@@ -1517,13 +1520,21 @@ static int __write_node_page(struct page *page, bool atomic, bool *submitted,
trace_f2fs_writepage(page, NODE);
- if (unlikely(f2fs_cp_error(sbi)))
+ if (unlikely(f2fs_cp_error(sbi))) {
+ if (is_sbi_flag_set(sbi, SBI_IS_CLOSE)) {
+ ClearPageUptodate(page);
+ dec_page_count(sbi, F2FS_DIRTY_NODES);
+ unlock_page(page);
+ return 0;
+ }
goto redirty_out;
+ }
if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
goto redirty_out;
- if (wbc->sync_mode == WB_SYNC_NONE &&
+ if (!is_sbi_flag_set(sbi, SBI_CP_DISABLED) &&
+ wbc->sync_mode == WB_SYNC_NONE &&
IS_DNODE(page) && is_cold_node(page))
goto redirty_out;
@@ -1551,7 +1562,8 @@ static int __write_node_page(struct page *page, bool atomic, bool *submitted,
}
if (__is_valid_data_blkaddr(ni.blk_addr) &&
- !f2fs_is_valid_blkaddr(sbi, ni.blk_addr, DATA_GENERIC)) {
+ !f2fs_is_valid_blkaddr(sbi, ni.blk_addr,
+ DATA_GENERIC_ENHANCE)) {
up_read(&sbi->node_write);
goto redirty_out;
}
@@ -1576,8 +1588,7 @@ static int __write_node_page(struct page *page, bool atomic, bool *submitted,
up_read(&sbi->node_write);
if (wbc->for_reclaim) {
- f2fs_submit_merged_write_cond(sbi, page->mapping->host, 0,
- page->index, NODE);
+ f2fs_submit_merged_write_cond(sbi, NULL, page, 0, NODE);
submitted = NULL;
}
@@ -1599,8 +1610,10 @@ static int __write_node_page(struct page *page, bool atomic, bool *submitted,
return AOP_WRITEPAGE_ACTIVATE;
}
-void f2fs_move_node_page(struct page *node_page, int gc_type)
+int f2fs_move_node_page(struct page *node_page, int gc_type)
{
+ int err = 0;
+
if (gc_type == FG_GC) {
struct writeback_control wbc = {
.sync_mode = WB_SYNC_ALL,
@@ -1608,16 +1621,20 @@ void f2fs_move_node_page(struct page *node_page, int gc_type)
.for_reclaim = 0,
};
- set_page_dirty(node_page);
- f2fs_wait_on_page_writeback(node_page, NODE, true);
+ f2fs_wait_on_page_writeback(node_page, NODE, true, true);
- f2fs_bug_on(F2FS_P_SB(node_page), PageWriteback(node_page));
- if (!clear_page_dirty_for_io(node_page))
+ set_page_dirty(node_page);
+
+ if (!clear_page_dirty_for_io(node_page)) {
+ err = -EAGAIN;
goto out_page;
+ }
if (__write_node_page(node_page, false, NULL,
- &wbc, false, FS_GC_NODE_IO, NULL))
+ &wbc, false, FS_GC_NODE_IO, NULL)) {
+ err = -EAGAIN;
unlock_page(node_page);
+ }
goto release_page;
} else {
/* set page dirty and write it */
@@ -1628,6 +1645,7 @@ void f2fs_move_node_page(struct page *node_page, int gc_type)
unlock_page(node_page);
release_page:
f2fs_put_page(node_page, 0);
+ return err;
}
static int f2fs_write_node_page(struct page *page,
@@ -1642,13 +1660,13 @@ int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
unsigned int *seq_id)
{
pgoff_t index;
- pgoff_t last_idx = ULONG_MAX;
struct pagevec pvec;
int ret = 0;
struct page *last_page = NULL;
bool marked = false;
nid_t ino = inode->i_ino;
int nr_pages;
+ int nwritten = 0;
if (atomic) {
last_page = last_fsync_dnode(sbi, ino);
@@ -1694,8 +1712,7 @@ int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
goto continue_unlock;
}
- f2fs_wait_on_page_writeback(page, NODE, true);
- BUG_ON(PageWriteback(page));
+ f2fs_wait_on_page_writeback(page, NODE, true, true);
set_fsync_mark(page, 0);
set_dentry_mark(page, 0);
@@ -1726,7 +1743,7 @@ int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
f2fs_put_page(last_page, 0);
break;
} else if (submitted) {
- last_idx = page->index;
+ nwritten++;
}
if (page == last_page) {
@@ -1742,21 +1759,108 @@ int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
break;
}
if (!ret && atomic && !marked) {
- f2fs_msg(sbi->sb, KERN_DEBUG,
- "Retry to write fsync mark: ino=%u, idx=%lx",
- ino, last_page->index);
+ f2fs_debug(sbi, "Retry to write fsync mark: ino=%u, idx=%lx",
+ ino, last_page->index);
lock_page(last_page);
- f2fs_wait_on_page_writeback(last_page, NODE, true);
+ f2fs_wait_on_page_writeback(last_page, NODE, true, true);
set_page_dirty(last_page);
unlock_page(last_page);
goto retry;
}
out:
- if (last_idx != ULONG_MAX)
- f2fs_submit_merged_write_cond(sbi, NULL, ino, last_idx, NODE);
+ if (nwritten)
+ f2fs_submit_merged_write_cond(sbi, NULL, NULL, ino, NODE);
return ret ? -EIO: 0;
}
+static int f2fs_match_ino(struct inode *inode, unsigned long ino, void *data)
+{
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+ bool clean;
+
+ if (inode->i_ino != ino)
+ return 0;
+
+ if (!is_inode_flag_set(inode, FI_DIRTY_INODE))
+ return 0;
+
+ spin_lock(&sbi->inode_lock[DIRTY_META]);
+ clean = list_empty(&F2FS_I(inode)->gdirty_list);
+ spin_unlock(&sbi->inode_lock[DIRTY_META]);
+
+ if (clean)
+ return 0;
+
+ inode = igrab(inode);
+ if (!inode)
+ return 0;
+ return 1;
+}
+
+static bool flush_dirty_inode(struct page *page)
+{
+ struct f2fs_sb_info *sbi = F2FS_P_SB(page);
+ struct inode *inode;
+ nid_t ino = ino_of_node(page);
+
+ inode = find_inode_nowait(sbi->sb, ino, f2fs_match_ino, NULL);
+ if (!inode)
+ return false;
+
+ f2fs_update_inode(inode, page);
+ unlock_page(page);
+
+ iput(inode);
+ return true;
+}
+
+int f2fs_flush_inline_data(struct f2fs_sb_info *sbi)
+{
+ pgoff_t index = 0;
+ struct pagevec pvec;
+ int nr_pages;
+ int ret = 0;
+
+ pagevec_init(&pvec);
+
+ while ((nr_pages = pagevec_lookup_tag(&pvec,
+ NODE_MAPPING(sbi), &index, PAGECACHE_TAG_DIRTY))) {
+ int i;
+
+ for (i = 0; i < nr_pages; i++) {
+ struct page *page = pvec.pages[i];
+
+ if (!IS_DNODE(page))
+ continue;
+
+ lock_page(page);
+
+ if (unlikely(page->mapping != NODE_MAPPING(sbi))) {
+continue_unlock:
+ unlock_page(page);
+ continue;
+ }
+
+ if (!PageDirty(page)) {
+ /* someone wrote it for us */
+ goto continue_unlock;
+ }
+
+ /* flush inline_data, if it's async context. */
+ if (is_inline_node(page)) {
+ clear_inline_node(page);
+ unlock_page(page);
+ flush_inline_data(sbi, ino_of_node(page));
+ continue;
+ }
+ unlock_page(page);
+ }
+ pagevec_release(&pvec);
+ cond_resched();
+ }
+ return ret;
+}
+
int f2fs_sync_node_pages(struct f2fs_sb_info *sbi,
struct writeback_control *wbc,
bool do_balance, enum iostat_type io_type)
@@ -1780,6 +1884,7 @@ int f2fs_sync_node_pages(struct f2fs_sb_info *sbi,
for (i = 0; i < nr_pages; i++) {
struct page *page = pvec.pages[i];
bool submitted = false;
+ bool may_dirty = true;
/* give a priority to WB_SYNC threads */
if (atomic_read(&sbi->wb_sync_req[NODE]) &&
@@ -1819,17 +1924,23 @@ int f2fs_sync_node_pages(struct f2fs_sb_info *sbi,
goto continue_unlock;
}
- /* flush inline_data */
- if (is_inline_node(page)) {
+ /* flush inline_data, if it's async context. */
+ if (do_balance && is_inline_node(page)) {
clear_inline_node(page);
unlock_page(page);
flush_inline_data(sbi, ino_of_node(page));
goto lock_node;
}
- f2fs_wait_on_page_writeback(page, NODE, true);
+ /* flush dirty inode */
+ if (IS_INODE(page) && may_dirty) {
+ may_dirty = false;
+ if (flush_dirty_inode(page))
+ goto lock_node;
+ }
- BUG_ON(PageWriteback(page));
+ f2fs_wait_on_page_writeback(page, NODE, true, true);
+
if (!clear_page_dirty_for_io(page))
goto continue_unlock;
@@ -1856,7 +1967,8 @@ int f2fs_sync_node_pages(struct f2fs_sb_info *sbi,
}
if (step < 2) {
- if (wbc->sync_mode == WB_SYNC_NONE && step == 1)
+ if (!is_sbi_flag_set(sbi, SBI_CP_DISABLED) &&
+ wbc->sync_mode == WB_SYNC_NONE && step == 1)
goto out;
step++;
goto next_step;
@@ -1896,7 +2008,7 @@ int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi,
get_page(page);
spin_unlock_irqrestore(&sbi->fsync_node_lock, flags);
- f2fs_wait_on_page_writeback(page, NODE, true);
+ f2fs_wait_on_page_writeback(page, NODE, true, false);
if (TestClearPageError(page))
ret = -EIO;
@@ -1924,10 +2036,12 @@ static int f2fs_write_node_pages(struct address_space *mapping,
goto skip_write;
/* balancing f2fs's metadata in background */
- f2fs_balance_fs_bg(sbi);
+ f2fs_balance_fs_bg(sbi, true);
/* collect a number of dirty node pages and write together */
- if (get_pages(sbi, F2FS_DIRTY_NODES) < nr_pages_to_skip(sbi, NODE))
+ if (wbc->sync_mode != WB_SYNC_ALL &&
+ get_pages(sbi, F2FS_DIRTY_NODES) <
+ nr_pages_to_skip(sbi, NODE))
goto skip_write;
if (wbc->sync_mode == WB_SYNC_ALL)
@@ -1966,7 +2080,7 @@ static int f2fs_set_node_page_dirty(struct page *page)
if (!PageDirty(page)) {
__set_page_dirty_nobuffers(page);
inc_page_count(F2FS_P_SB(page), F2FS_DIRTY_NODES);
- SetPagePrivate(page);
+ f2fs_set_page_private(page, 0);
f2fs_trace_pid(page);
return 1;
}
@@ -2286,15 +2400,17 @@ static int __f2fs_build_free_nids(struct f2fs_sb_info *sbi,
nm_i->nat_block_bitmap)) {
struct page *page = get_current_nat_page(sbi, nid);
- ret = scan_nat_page(sbi, page, nid);
- f2fs_put_page(page, 1);
+ if (IS_ERR(page)) {
+ ret = PTR_ERR(page);
+ } else {
+ ret = scan_nat_page(sbi, page, nid);
+ f2fs_put_page(page, 1);
+ }
if (ret) {
up_read(&nm_i->nat_tree_lock);
- f2fs_bug_on(sbi, !mount);
- f2fs_msg(sbi->sb, KERN_ERR,
- "NAT is corrupt, run fsck to fix it");
- return -EINVAL;
+ f2fs_err(sbi, "NAT is corrupt, run fsck to fix it");
+ return ret;
}
}
@@ -2342,7 +2458,7 @@ bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid)
struct free_nid *i = NULL;
retry:
if (time_to_inject(sbi, FAULT_ALLOC_NID)) {
- f2fs_show_injection_info(FAULT_ALLOC_NID);
+ f2fs_show_injection_info(sbi, FAULT_ALLOC_NID);
return false;
}
@@ -2429,7 +2545,6 @@ void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid)
int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink)
{
struct f2fs_nm_info *nm_i = NM_I(sbi);
- struct free_nid *i, *next;
int nr = nr_shrink;
if (nm_i->nid_cnt[FREE_NID] <= MAX_FREE_NIDS)
@@ -2438,17 +2553,23 @@ int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink)
if (!mutex_trylock(&nm_i->build_lock))
return 0;
- spin_lock(&nm_i->nid_list_lock);
- list_for_each_entry_safe(i, next, &nm_i->free_nid_list, list) {
- if (nr_shrink <= 0 ||
- nm_i->nid_cnt[FREE_NID] <= MAX_FREE_NIDS)
- break;
+ while (nr_shrink && nm_i->nid_cnt[FREE_NID] > MAX_FREE_NIDS) {
+ struct free_nid *i, *next;
+ unsigned int batch = SHRINK_NID_BATCH_SIZE;
- __remove_free_nid(sbi, i, FREE_NID);
- kmem_cache_free(free_nid_slab, i);
- nr_shrink--;
+ spin_lock(&nm_i->nid_list_lock);
+ list_for_each_entry_safe(i, next, &nm_i->free_nid_list, list) {
+ if (!nr_shrink || !batch ||
+ nm_i->nid_cnt[FREE_NID] <= MAX_FREE_NIDS)
+ break;
+ __remove_free_nid(sbi, i, FREE_NID);
+ kmem_cache_free(free_nid_slab, i);
+ nr_shrink--;
+ batch--;
+ }
+ spin_unlock(&nm_i->nid_list_lock);
}
- spin_unlock(&nm_i->nid_list_lock);
+
mutex_unlock(&nm_i->build_lock);
return nr - nr_shrink;
@@ -2477,7 +2598,7 @@ int f2fs_recover_inline_xattr(struct inode *inode, struct page *page)
src_addr = inline_xattr_addr(inode, page);
inline_size = inline_xattr_size(inode);
- f2fs_wait_on_page_writeback(ipage, NODE, true);
+ f2fs_wait_on_page_writeback(ipage, NODE, true, true);
memcpy(dst_addr, src_addr, inline_size);
update_inode:
f2fs_update_inode(inode, ipage);
@@ -2548,7 +2669,7 @@ int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page)
retry:
ipage = f2fs_grab_cache_page(NODE_MAPPING(sbi), ino, false);
if (!ipage) {
- congestion_wait(BLK_RW_ASYNC, HZ/50);
+ congestion_wait(BLK_RW_ASYNC, DEFAULT_IO_TIMEOUT);
goto retry;
}
@@ -2572,17 +2693,17 @@ int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page)
if (dst->i_inline & F2FS_EXTRA_ATTR) {
dst->i_extra_isize = src->i_extra_isize;
- if (f2fs_sb_has_flexible_inline_xattr(sbi->sb) &&
+ if (f2fs_sb_has_flexible_inline_xattr(sbi) &&
F2FS_FITS_IN_INODE(src, le16_to_cpu(src->i_extra_isize),
i_inline_xattr_size))
dst->i_inline_xattr_size = src->i_inline_xattr_size;
- if (f2fs_sb_has_project_quota(sbi->sb) &&
+ if (f2fs_sb_has_project_quota(sbi) &&
F2FS_FITS_IN_INODE(src, le16_to_cpu(src->i_extra_isize),
i_projid))
dst->i_projid = src->i_projid;
- if (f2fs_sb_has_inode_crtime(sbi->sb) &&
+ if (f2fs_sb_has_inode_crtime(sbi) &&
F2FS_FITS_IN_INODE(src, le16_to_cpu(src->i_extra_isize),
i_crtime_nsec)) {
dst->i_crtime = src->i_crtime;
@@ -2718,7 +2839,7 @@ static void __update_nat_bits(struct f2fs_sb_info *sbi, nid_t start_nid,
i = 1;
}
for (; i < NAT_ENTRY_PER_BLOCK; i++) {
- if (nat_blk->entries[i].block_addr != NULL_ADDR)
+ if (le32_to_cpu(nat_blk->entries[i].block_addr) != NULL_ADDR)
valid++;
}
if (valid == 0) {
@@ -2734,7 +2855,7 @@ static void __update_nat_bits(struct f2fs_sb_info *sbi, nid_t start_nid,
__clear_bit_le(nat_index, nm_i->full_nat_bits);
}
-static void __flush_nat_entry_set(struct f2fs_sb_info *sbi,
+static int __flush_nat_entry_set(struct f2fs_sb_info *sbi,
struct nat_entry_set *set, struct cp_control *cpc)
{
struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA);
@@ -2758,6 +2879,9 @@ static void __flush_nat_entry_set(struct f2fs_sb_info *sbi,
down_write(&curseg->journal_rwsem);
} else {
page = get_next_nat_page(sbi, start_nid);
+ if (IS_ERR(page))
+ return PTR_ERR(page);
+
nat_blk = page_address(page);
f2fs_bug_on(sbi, !nat_blk);
}
@@ -2803,12 +2927,13 @@ static void __flush_nat_entry_set(struct f2fs_sb_info *sbi,
radix_tree_delete(&NM_I(sbi)->nat_set_root, set->set);
kmem_cache_free(nat_entry_set_slab, set);
}
+ return 0;
}
/*
* This function is called during the checkpointing process.
*/
-void f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc)
+int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc)
{
struct f2fs_nm_info *nm_i = NM_I(sbi);
struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA);
@@ -2818,6 +2943,7 @@ void f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc)
unsigned int found;
nid_t set_idx = 0;
LIST_HEAD(sets);
+ int err = 0;
/* during unmount, let's flush nat_bits before checking dirty_nat_cnt */
if (enabled_nat_bits(sbi, cpc)) {
@@ -2827,7 +2953,7 @@ void f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc)
}
if (!nm_i->dirty_nat_cnt)
- return;
+ return 0;
down_write(&nm_i->nat_tree_lock);
@@ -2850,11 +2976,16 @@ void f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc)
}
/* flush dirty nats in nat entry set */
- list_for_each_entry_safe(set, tmp, &sets, set_list)
- __flush_nat_entry_set(sbi, set, cpc);
+ list_for_each_entry_safe(set, tmp, &sets, set_list) {
+ err = __flush_nat_entry_set(sbi, set, cpc);
+ if (err)
+ break;
+ }
up_write(&nm_i->nat_tree_lock);
/* Allow dirty nats by node block allocation in write_begin */
+
+ return err;
}
static int __get_nat_bitmaps(struct f2fs_sb_info *sbi)
@@ -2870,7 +3001,7 @@ static int __get_nat_bitmaps(struct f2fs_sb_info *sbi)
return 0;
nm_i->nat_bits_blocks = F2FS_BLK_ALIGN((nat_bits_bytes << 1) + 8);
- nm_i->nat_bits = f2fs_kzalloc(sbi,
+ nm_i->nat_bits = f2fs_kvzalloc(sbi,
nm_i->nat_bits_blocks << F2FS_BLKSIZE_BITS, GFP_KERNEL);
if (!nm_i->nat_bits)
return -ENOMEM;
@@ -2881,10 +3012,8 @@ static int __get_nat_bitmaps(struct f2fs_sb_info *sbi)
struct page *page;
page = f2fs_get_meta_page(sbi, nat_bits_addr++);
- if (IS_ERR(page)) {
- disable_nat_bits(sbi, true);
+ if (IS_ERR(page))
return PTR_ERR(page);
- }
memcpy(nm_i->nat_bits + (i << F2FS_BLKSIZE_BITS),
page_address(page), F2FS_BLKSIZE);
@@ -2900,7 +3029,7 @@ static int __get_nat_bitmaps(struct f2fs_sb_info *sbi)
nm_i->full_nat_bits = nm_i->nat_bits + 8;
nm_i->empty_nat_bits = nm_i->full_nat_bits + nat_bits_bytes;
- f2fs_msg(sbi->sb, KERN_NOTICE, "Found nat_bits in checkpoint");
+ f2fs_notice(sbi, "Found nat_bits in checkpoint");
return 0;
}
@@ -2955,7 +3084,7 @@ static int init_node_manager(struct f2fs_sb_info *sbi)
/* not used nids: 0, node, meta, (and root counted as valid node) */
nm_i->available_nids = nm_i->max_nid - sbi->total_valid_node_count -
- sbi->nquota_files - F2FS_RESERVED_NODE_NUM;
+ F2FS_RESERVED_NODE_NUM;
nm_i->nid_cnt[FREE_NID] = 0;
nm_i->nid_cnt[PREALLOC_NID] = 0;
nm_i->nat_cnt = 0;
@@ -3005,9 +3134,9 @@ static int init_free_nid_cache(struct f2fs_sb_info *sbi)
int i;
nm_i->free_nid_bitmap =
- f2fs_kzalloc(sbi, array_size(sizeof(unsigned char *),
- nm_i->nat_blocks),
- GFP_KERNEL);
+ f2fs_kvzalloc(sbi, array_size(sizeof(unsigned char *),
+ nm_i->nat_blocks),
+ GFP_KERNEL);
if (!nm_i->free_nid_bitmap)
return -ENOMEM;
@@ -3119,37 +3248,37 @@ void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi)
for (i = 0; i < nm_i->nat_blocks; i++)
kvfree(nm_i->free_nid_bitmap[i]);
- kfree(nm_i->free_nid_bitmap);
+ kvfree(nm_i->free_nid_bitmap);
}
kvfree(nm_i->free_nid_count);
- kfree(nm_i->nat_bitmap);
- kfree(nm_i->nat_bits);
+ kvfree(nm_i->nat_bitmap);
+ kvfree(nm_i->nat_bits);
#ifdef CONFIG_F2FS_CHECK_FS
- kfree(nm_i->nat_bitmap_mir);
+ kvfree(nm_i->nat_bitmap_mir);
#endif
sbi->nm_info = NULL;
- kfree(nm_i);
+ kvfree(nm_i);
}
int __init f2fs_create_node_manager_caches(void)
{
- nat_entry_slab = f2fs_kmem_cache_create("nat_entry",
+ nat_entry_slab = f2fs_kmem_cache_create("f2fs_nat_entry",
sizeof(struct nat_entry));
if (!nat_entry_slab)
goto fail;
- free_nid_slab = f2fs_kmem_cache_create("free_nid",
+ free_nid_slab = f2fs_kmem_cache_create("f2fs_free_nid",
sizeof(struct free_nid));
if (!free_nid_slab)
goto destroy_nat_entry;
- nat_entry_set_slab = f2fs_kmem_cache_create("nat_entry_set",
+ nat_entry_set_slab = f2fs_kmem_cache_create("f2fs_nat_entry_set",
sizeof(struct nat_entry_set));
if (!nat_entry_set_slab)
goto destroy_free_nid;
- fsync_node_entry_slab = f2fs_kmem_cache_create("fsync_node_entry",
+ fsync_node_entry_slab = f2fs_kmem_cache_create("f2fs_fsync_node_entry",
sizeof(struct fsync_node_entry));
if (!fsync_node_entry_slab)
goto destroy_nat_entry_set;
diff --git a/fs/f2fs/node.h b/fs/f2fs/node.h
index 0f4db7a..69e5859 100644
--- a/fs/f2fs/node.h
+++ b/fs/f2fs/node.h
@@ -1,12 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* fs/f2fs/node.h
*
* Copyright (c) 2012 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
/* start node id of a node block dedicated to the given node id */
#define START_NID(nid) (((nid) / NAT_ENTRY_PER_BLOCK) * NAT_ENTRY_PER_BLOCK)
@@ -18,6 +15,9 @@
#define FREE_NID_PAGES 8
#define MAX_FREE_NIDS (NAT_ENTRY_PER_BLOCK * FREE_NID_PAGES)
+/* size of free nid batch when shrinking */
+#define SHRINK_NID_BATCH_SIZE 8
+
#define DEF_RA_NID_PAGES 0 /* # of nid pages to be readaheaded */
/* maximum readahead size for node during getting data blocks */
@@ -364,7 +364,7 @@ static inline int set_nid(struct page *p, int off, nid_t nid, bool i)
{
struct f2fs_node *rn = F2FS_NODE(p);
- f2fs_wait_on_page_writeback(p, NODE, true);
+ f2fs_wait_on_page_writeback(p, NODE, true, true);
if (i)
rn->i.i_nid[off - NODE_DIR1_BLOCK] = cpu_to_le32(nid);
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index ad0486b..1ad3d1f 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -1,13 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* fs/f2fs/recovery.c
*
* Copyright (c) 2012 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
+#include <asm/unaligned.h>
#include <linux/fs.h>
#include <linux/f2fs_fs.h>
#include "f2fs.h"
@@ -110,13 +108,60 @@ static void del_fsync_inode(struct fsync_inode_entry *entry, int drop)
kmem_cache_free(fsync_entry_slab, entry);
}
+static int init_recovered_filename(const struct inode *dir,
+ struct f2fs_inode *raw_inode,
+ struct f2fs_filename *fname,
+ struct qstr *usr_fname)
+{
+ int err;
+
+ memset(fname, 0, sizeof(*fname));
+ fname->disk_name.len = le32_to_cpu(raw_inode->i_namelen);
+ fname->disk_name.name = raw_inode->i_name;
+
+ if (WARN_ON(fname->disk_name.len > F2FS_NAME_LEN))
+ return -ENAMETOOLONG;
+
+ if (!IS_ENCRYPTED(dir)) {
+ usr_fname->name = fname->disk_name.name;
+ usr_fname->len = fname->disk_name.len;
+ fname->usr_fname = usr_fname;
+ }
+
+ /* Compute the hash of the filename */
+ if (IS_ENCRYPTED(dir) && IS_CASEFOLDED(dir)) {
+ /*
+ * In this case the hash isn't computable without the key, so it
+ * was saved on-disk.
+ */
+ if (fname->disk_name.len + sizeof(f2fs_hash_t) > F2FS_NAME_LEN)
+ return -EINVAL;
+ fname->hash = get_unaligned((f2fs_hash_t *)
+ &raw_inode->i_name[fname->disk_name.len]);
+ } else if (IS_CASEFOLDED(dir)) {
+ err = f2fs_init_casefolded_name(dir, fname);
+ if (err)
+ return err;
+ f2fs_hash_filename(dir, fname);
+#ifdef CONFIG_UNICODE
+ /* Case-sensitive match is fine for recovery */
+ kfree(fname->cf_name.name);
+ fname->cf_name.name = NULL;
+#endif
+ } else {
+ f2fs_hash_filename(dir, fname);
+ }
+ return 0;
+}
+
static int recover_dentry(struct inode *inode, struct page *ipage,
struct list_head *dir_list)
{
struct f2fs_inode *raw_inode = F2FS_INODE(ipage);
nid_t pino = le32_to_cpu(raw_inode->i_pino);
struct f2fs_dir_entry *de;
- struct fscrypt_name fname;
+ struct f2fs_filename fname;
+ struct qstr usr_fname;
struct page *page;
struct inode *dir, *einode;
struct fsync_inode_entry *entry;
@@ -135,16 +180,9 @@ static int recover_dentry(struct inode *inode, struct page *ipage,
}
dir = entry->inode;
-
- memset(&fname, 0, sizeof(struct fscrypt_name));
- fname.disk_name.len = le32_to_cpu(raw_inode->i_namelen);
- fname.disk_name.name = raw_inode->i_name;
-
- if (unlikely(fname.disk_name.len > F2FS_NAME_LEN)) {
- WARN_ON(1);
- err = -ENAMETOOLONG;
+ err = init_recovered_filename(dir, raw_inode, &fname, &usr_fname);
+ if (err)
goto out;
- }
retry:
de = __f2fs_find_entry(dir, &fname, &page);
if (de && inode->i_ino == le32_to_cpu(de->ino))
@@ -191,10 +229,36 @@ static int recover_dentry(struct inode *inode, struct page *ipage,
name = "<encrypted>";
else
name = raw_inode->i_name;
- f2fs_msg(inode->i_sb, KERN_NOTICE,
- "%s: ino = %x, name = %s, dir = %lx, err = %d",
- __func__, ino_of_node(ipage), name,
- IS_ERR(dir) ? 0 : dir->i_ino, err);
+ f2fs_notice(F2FS_I_SB(inode), "%s: ino = %x, name = %s, dir = %lx, err = %d",
+ __func__, ino_of_node(ipage), name,
+ IS_ERR(dir) ? 0 : dir->i_ino, err);
+ return err;
+}
+
+static int recover_quota_data(struct inode *inode, struct page *page)
+{
+ struct f2fs_inode *raw = F2FS_INODE(page);
+ struct iattr attr;
+ uid_t i_uid = le32_to_cpu(raw->i_uid);
+ gid_t i_gid = le32_to_cpu(raw->i_gid);
+ int err;
+
+ memset(&attr, 0, sizeof(attr));
+
+ attr.ia_uid = make_kuid(inode->i_sb->s_user_ns, i_uid);
+ attr.ia_gid = make_kgid(inode->i_sb->s_user_ns, i_gid);
+
+ if (!uid_eq(attr.ia_uid, inode->i_uid))
+ attr.ia_valid |= ATTR_UID;
+ if (!gid_eq(attr.ia_gid, inode->i_gid))
+ attr.ia_valid |= ATTR_GID;
+
+ if (!attr.ia_valid)
+ return 0;
+
+ err = dquot_transfer(inode, &attr);
+ if (err)
+ set_sbi_flag(F2FS_I_SB(inode), SBI_QUOTA_NEED_REPAIR);
return err;
}
@@ -210,24 +274,38 @@ static void recover_inline_flags(struct inode *inode, struct f2fs_inode *ri)
clear_inode_flag(inode, FI_DATA_EXIST);
}
-static void recover_inode(struct inode *inode, struct page *page)
+static int recover_inode(struct inode *inode, struct page *page)
{
struct f2fs_inode *raw = F2FS_INODE(page);
char *name;
+ int err;
inode->i_mode = le16_to_cpu(raw->i_mode);
+
+ err = recover_quota_data(inode, page);
+ if (err)
+ return err;
+
i_uid_write(inode, le32_to_cpu(raw->i_uid));
i_gid_write(inode, le32_to_cpu(raw->i_gid));
if (raw->i_inline & F2FS_EXTRA_ATTR) {
- if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)->sb) &&
+ if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)) &&
F2FS_FITS_IN_INODE(raw, le16_to_cpu(raw->i_extra_isize),
i_projid)) {
projid_t i_projid;
+ kprojid_t kprojid;
i_projid = (projid_t)le32_to_cpu(raw->i_projid);
- F2FS_I(inode)->i_projid =
- make_kprojid(&init_user_ns, i_projid);
+ kprojid = make_kprojid(&init_user_ns, i_projid);
+
+ if (!projid_eq(kprojid, F2FS_I(inode)->i_projid)) {
+ err = f2fs_transfer_project_quota(inode,
+ kprojid);
+ if (err)
+ return err;
+ F2FS_I(inode)->i_projid = kprojid;
+ }
}
}
@@ -254,9 +332,9 @@ static void recover_inode(struct inode *inode, struct page *page)
else
name = F2FS_INODE(page)->i_name;
- f2fs_msg(inode->i_sb, KERN_NOTICE,
- "recover_inode: ino = %x, name = %s, inline = %x",
- ino_of_node(page), name, raw->i_inline);
+ f2fs_notice(F2FS_I_SB(inode), "recover_inode: ino = %x, name = %s, inline = %x",
+ ino_of_node(page), name, raw->i_inline);
+ return 0;
}
static int find_fsync_dnodes(struct f2fs_sb_info *sbi, struct list_head *head,
@@ -286,8 +364,10 @@ static int find_fsync_dnodes(struct f2fs_sb_info *sbi, struct list_head *head,
break;
}
- if (!is_recoverable_dnode(page))
+ if (!is_recoverable_dnode(page)) {
+ f2fs_put_page(page, 1);
break;
+ }
if (!is_fsync_dnode(page))
goto next;
@@ -299,8 +379,10 @@ static int find_fsync_dnodes(struct f2fs_sb_info *sbi, struct list_head *head,
if (!check_only &&
IS_INODE(page) && is_dent_dnode(page)) {
err = f2fs_recover_inode_page(sbi, page);
- if (err)
+ if (err) {
+ f2fs_put_page(page, 1);
break;
+ }
quota_inode = true;
}
@@ -316,6 +398,7 @@ static int find_fsync_dnodes(struct f2fs_sb_info *sbi, struct list_head *head,
err = 0;
goto next;
}
+ f2fs_put_page(page, 1);
break;
}
}
@@ -327,10 +410,10 @@ static int find_fsync_dnodes(struct f2fs_sb_info *sbi, struct list_head *head,
/* sanity check in order to detect looped node chain */
if (++loop_cnt >= free_blocks ||
blkaddr == next_blkaddr_of_node(page)) {
- f2fs_msg(sbi->sb, KERN_NOTICE,
- "%s: detect looped node chain, "
- "blkaddr:%u, next:%u",
- __func__, blkaddr, next_blkaddr_of_node(page));
+ f2fs_notice(sbi, "%s: detect looped node chain, blkaddr:%u, next:%u",
+ __func__, blkaddr,
+ next_blkaddr_of_node(page));
+ f2fs_put_page(page, 1);
err = -EINVAL;
break;
}
@@ -341,7 +424,6 @@ static int find_fsync_dnodes(struct f2fs_sb_info *sbi, struct list_head *head,
f2fs_ra_meta_pages_cond(sbi, blkaddr);
}
- f2fs_put_page(page, 1);
return err;
}
@@ -383,6 +465,8 @@ static int check_index_in_prev_nodes(struct f2fs_sb_info *sbi,
}
sum_page = f2fs_get_sum_page(sbi, segno);
+ if (IS_ERR(sum_page))
+ return PTR_ERR(sum_page);
sum_node = (struct f2fs_summary_block *)page_address(sum_page);
sum = sum_node->entries[blkoff];
f2fs_put_page(sum_page, 1);
@@ -453,8 +537,7 @@ static int check_index_in_prev_nodes(struct f2fs_sb_info *sbi,
return 0;
truncate_out:
- if (datablock_addr(tdn.inode, tdn.node_page,
- tdn.ofs_in_node) == blkaddr)
+ if (f2fs_data_blkaddr(&tdn) == blkaddr)
f2fs_truncate_data_blocks_range(&tdn, 1);
if (dn->inode->i_ino == nid && !dn->inode_page_locked)
unlock_page(dn->inode_page);
@@ -498,13 +581,13 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
err = f2fs_get_dnode_of_data(&dn, start, ALLOC_NODE);
if (err) {
if (err == -ENOMEM) {
- congestion_wait(BLK_RW_ASYNC, HZ/50);
+ congestion_wait(BLK_RW_ASYNC, DEFAULT_IO_TIMEOUT);
goto retry_dn;
}
goto out;
}
- f2fs_wait_on_page_writeback(dn.node_page, NODE, true);
+ f2fs_wait_on_page_writeback(dn.node_page, NODE, true, true);
err = f2fs_get_node_info(sbi, dn.nid, &ni);
if (err)
@@ -513,10 +596,9 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
f2fs_bug_on(sbi, ni.ino != ino_of_node(page));
if (ofs_of_node(dn.node_page) != ofs_of_node(page)) {
- f2fs_msg(sbi->sb, KERN_WARNING,
- "Inconsistent ofs_of_node, ino:%lu, ofs:%u, %u",
- inode->i_ino, ofs_of_node(dn.node_page),
- ofs_of_node(page));
+ f2fs_warn(sbi, "Inconsistent ofs_of_node, ino:%lu, ofs:%u, %u",
+ inode->i_ino, ofs_of_node(dn.node_page),
+ ofs_of_node(page));
err = -EFSCORRUPTED;
goto err;
}
@@ -524,8 +606,20 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
for (; start < end; start++, dn.ofs_in_node++) {
block_t src, dest;
- src = datablock_addr(dn.inode, dn.node_page, dn.ofs_in_node);
- dest = datablock_addr(dn.inode, page, dn.ofs_in_node);
+ src = f2fs_data_blkaddr(&dn);
+ dest = data_blkaddr(dn.inode, page, dn.ofs_in_node);
+
+ if (__is_valid_data_blkaddr(src) &&
+ !f2fs_is_valid_blkaddr(sbi, src, META_POR)) {
+ err = -EFSCORRUPTED;
+ goto err;
+ }
+
+ if (__is_valid_data_blkaddr(dest) &&
+ !f2fs_is_valid_blkaddr(sbi, dest, META_POR)) {
+ err = -EFSCORRUPTED;
+ goto err;
+ }
/* skip recovering if dest is the same as src */
if (src == dest)
@@ -570,7 +664,8 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
err = check_index_in_prev_nodes(sbi, dest, &dn);
if (err) {
if (err == -ENOMEM) {
- congestion_wait(BLK_RW_ASYNC, HZ/50);
+ congestion_wait(BLK_RW_ASYNC,
+ DEFAULT_IO_TIMEOUT);
goto retry_prev;
}
goto err;
@@ -590,11 +685,9 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
err:
f2fs_put_dnode(&dn);
out:
- f2fs_msg(sbi->sb, KERN_NOTICE,
- "recover_data: ino = %lx (i_size: %s) recovered = %d, err = %d",
- inode->i_ino,
- file_keep_isize(inode) ? "keep" : "recover",
- recovered, err);
+ f2fs_notice(sbi, "recover_data: ino = %lx (i_size: %s) recovered = %d, err = %d",
+ inode->i_ino, file_keep_isize(inode) ? "keep" : "recover",
+ recovered, err);
return err;
}
@@ -637,8 +730,13 @@ static int recover_data(struct f2fs_sb_info *sbi, struct list_head *inode_list,
* In this case, we can lose the latest inode(x).
* So, call recover_inode for the inode update.
*/
- if (IS_INODE(page))
- recover_inode(entry->inode, page);
+ if (IS_INODE(page)) {
+ err = recover_inode(entry->inode, page);
+ if (err) {
+ f2fs_put_page(page, 1);
+ break;
+ }
+ }
if (entry->last_dentry == blkaddr) {
err = recover_dentry(entry->inode, page, dir_list);
if (err) {
@@ -660,7 +758,7 @@ static int recover_data(struct f2fs_sb_info *sbi, struct list_head *inode_list,
f2fs_put_page(page, 1);
}
if (!err)
- f2fs_allocate_new_segments(sbi);
+ f2fs_allocate_new_segments(sbi, NO_CHECK_TYPE);
return err;
}
@@ -677,8 +775,7 @@ int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only)
#endif
if (s_flags & SB_RDONLY) {
- f2fs_msg(sbi->sb, KERN_INFO,
- "recover fsync data on readonly fs");
+ f2fs_info(sbi, "recover fsync data on readonly fs");
sbi->sb->s_flags &= ~SB_RDONLY;
}
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 0e3e590..e489878 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* fs/f2fs/segment.c
*
* Copyright (c) 2012 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/fs.h>
#include <linux/f2fs_fs.h>
@@ -175,10 +172,12 @@ bool f2fs_need_SSR(struct f2fs_sb_info *sbi)
int dent_secs = get_blocktype_secs(sbi, F2FS_DIRTY_DENTS);
int imeta_secs = get_blocktype_secs(sbi, F2FS_DIRTY_IMETA);
- if (test_opt(sbi, LFS))
+ if (f2fs_lfs_mode(sbi))
return false;
if (sbi->gc_mode == GC_URGENT)
return true;
+ if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
+ return true;
return free_sections(sbi) <= (node_secs + 2 * dent_secs + imeta_secs +
SM_I(sbi)->min_ssr_sections + reserved_sections(sbi));
@@ -186,14 +185,11 @@ bool f2fs_need_SSR(struct f2fs_sb_info *sbi)
void f2fs_register_inmem_page(struct inode *inode, struct page *page)
{
- struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
- struct f2fs_inode_info *fi = F2FS_I(inode);
struct inmem_pages *new;
f2fs_trace_pid(page);
- set_page_private(page, (unsigned long)ATOMIC_WRITTEN_PAGE);
- SetPagePrivate(page);
+ f2fs_set_page_private(page, (unsigned long)ATOMIC_WRITTEN_PAGE);
new = f2fs_kmem_cache_alloc(inmem_entry_slab, GFP_NOFS);
@@ -202,15 +198,11 @@ void f2fs_register_inmem_page(struct inode *inode, struct page *page)
INIT_LIST_HEAD(&new->list);
/* increase reference count with clean state */
- mutex_lock(&fi->inmem_lock);
get_page(page);
- list_add_tail(&new->list, &fi->inmem_pages);
- spin_lock(&sbi->inode_lock[ATOMIC_FILE]);
- if (list_empty(&fi->inmem_ilist))
- list_add_tail(&fi->inmem_ilist, &sbi->inode_list[ATOMIC_FILE]);
- spin_unlock(&sbi->inode_lock[ATOMIC_FILE]);
+ mutex_lock(&F2FS_I(inode)->inmem_lock);
+ list_add_tail(&new->list, &F2FS_I(inode)->inmem_pages);
inc_page_count(F2FS_I_SB(inode), F2FS_INMEM_PAGES);
- mutex_unlock(&fi->inmem_lock);
+ mutex_unlock(&F2FS_I(inode)->inmem_lock);
trace_f2fs_register_inmem_page(page, INMEM);
}
@@ -240,7 +232,7 @@ static int __revoke_inmem_pages(struct inode *inode,
lock_page(page);
}
- f2fs_wait_on_page_writeback(page, DATA, true);
+ f2fs_wait_on_page_writeback(page, DATA, true, true);
if (recover) {
struct dnode_of_data dn;
@@ -253,7 +245,8 @@ static int __revoke_inmem_pages(struct inode *inode,
LOOKUP_NODE);
if (err) {
if (err == -ENOMEM) {
- congestion_wait(BLK_RW_ASYNC, HZ/50);
+ congestion_wait(BLK_RW_ASYNC,
+ DEFAULT_IO_TIMEOUT);
cond_resched();
goto retry;
}
@@ -281,8 +274,7 @@ static int __revoke_inmem_pages(struct inode *inode,
ClearPageUptodate(page);
clear_cold_data(page);
}
- set_page_private(page, 0);
- ClearPagePrivate(page);
+ f2fs_clear_page_private(page);
f2fs_put_page(page, 1);
list_del(&cur->list);
@@ -297,6 +289,8 @@ void f2fs_drop_inmem_pages_all(struct f2fs_sb_info *sbi, bool gc_failure)
struct list_head *head = &sbi->inode_list[ATOMIC_FILE];
struct inode *inode;
struct f2fs_inode_info *fi;
+ unsigned int count = sbi->atomic_files;
+ unsigned int looped = 0;
next:
spin_lock(&sbi->inode_lock[ATOMIC_FILE]);
if (list_empty(head)) {
@@ -305,22 +299,26 @@ void f2fs_drop_inmem_pages_all(struct f2fs_sb_info *sbi, bool gc_failure)
}
fi = list_first_entry(head, struct f2fs_inode_info, inmem_ilist);
inode = igrab(&fi->vfs_inode);
+ if (inode)
+ list_move_tail(&fi->inmem_ilist, head);
spin_unlock(&sbi->inode_lock[ATOMIC_FILE]);
if (inode) {
if (gc_failure) {
- if (fi->i_gc_failures[GC_FAILURE_ATOMIC])
- goto drop;
- goto skip;
+ if (!fi->i_gc_failures[GC_FAILURE_ATOMIC])
+ goto skip;
}
-drop:
set_inode_flag(inode, FI_ATOMIC_REVOKE_REQUEST);
f2fs_drop_inmem_pages(inode);
+skip:
iput(inode);
}
-skip:
- congestion_wait(BLK_RW_ASYNC, HZ/50);
+ congestion_wait(BLK_RW_ASYNC, DEFAULT_IO_TIMEOUT);
cond_resched();
+ if (gc_failure) {
+ if (++looped >= count)
+ return;
+ }
goto next;
}
@@ -333,19 +331,19 @@ void f2fs_drop_inmem_pages(struct inode *inode)
mutex_lock(&fi->inmem_lock);
__revoke_inmem_pages(inode, &fi->inmem_pages,
true, false, true);
-
- if (list_empty(&fi->inmem_pages)) {
- spin_lock(&sbi->inode_lock[ATOMIC_FILE]);
- if (!list_empty(&fi->inmem_ilist))
- list_del_init(&fi->inmem_ilist);
- spin_unlock(&sbi->inode_lock[ATOMIC_FILE]);
- }
mutex_unlock(&fi->inmem_lock);
}
- clear_inode_flag(inode, FI_ATOMIC_FILE);
fi->i_gc_failures[GC_FAILURE_ATOMIC] = 0;
- stat_dec_atomic_write(inode);
+
+ spin_lock(&sbi->inode_lock[ATOMIC_FILE]);
+ if (!list_empty(&fi->inmem_ilist))
+ list_del_init(&fi->inmem_ilist);
+ if (f2fs_is_atomic_file(inode)) {
+ clear_inode_flag(inode, FI_ATOMIC_FILE);
+ sbi->atomic_files--;
+ }
+ spin_unlock(&sbi->inode_lock[ATOMIC_FILE]);
}
void f2fs_drop_inmem_page(struct inode *inode, struct page *page)
@@ -371,8 +369,7 @@ void f2fs_drop_inmem_page(struct inode *inode, struct page *page)
kmem_cache_free(inmem_entry_slab, cur);
ClearPageUptodate(page);
- set_page_private(page, 0);
- ClearPagePrivate(page);
+ f2fs_clear_page_private(page);
f2fs_put_page(page, 0);
trace_f2fs_commit_inmem_page(page, INMEM_INVALIDATE);
@@ -392,7 +389,7 @@ static int __f2fs_commit_inmem_pages(struct inode *inode)
.io_type = FS_DATA_IO,
};
struct list_head revoke_list;
- pgoff_t last_idx = ULONG_MAX;
+ bool submit_bio = false;
int err = 0;
INIT_LIST_HEAD(&revoke_list);
@@ -404,8 +401,9 @@ static int __f2fs_commit_inmem_pages(struct inode *inode)
if (page->mapping == inode->i_mapping) {
trace_f2fs_commit_inmem_page(page, INMEM);
+ f2fs_wait_on_page_writeback(page, DATA, true, true);
+
set_page_dirty(page);
- f2fs_wait_on_page_writeback(page, DATA, true);
if (clear_page_dirty_for_io(page)) {
inode_dec_dirty_pages(inode);
f2fs_remove_dirty_inode(inode);
@@ -418,7 +416,8 @@ static int __f2fs_commit_inmem_pages(struct inode *inode)
err = f2fs_do_write_data_page(&fio);
if (err) {
if (err == -ENOMEM) {
- congestion_wait(BLK_RW_ASYNC, HZ/50);
+ congestion_wait(BLK_RW_ASYNC,
+ DEFAULT_IO_TIMEOUT);
cond_resched();
goto retry;
}
@@ -427,14 +426,14 @@ static int __f2fs_commit_inmem_pages(struct inode *inode)
}
/* record old blkaddr for revoking */
cur->old_addr = fio.old_blkaddr;
- last_idx = page->index;
+ submit_bio = true;
}
unlock_page(page);
list_move_tail(&cur->list, &revoke_list);
}
- if (last_idx != ULONG_MAX)
- f2fs_submit_merged_write_cond(sbi, inode, 0, last_idx, DATA);
+ if (submit_bio)
+ f2fs_submit_merged_write_cond(sbi, inode, NULL, 0, DATA);
if (err) {
/*
@@ -474,11 +473,6 @@ int f2fs_commit_inmem_pages(struct inode *inode)
mutex_lock(&fi->inmem_lock);
err = __f2fs_commit_inmem_pages(inode);
-
- spin_lock(&sbi->inode_lock[ATOMIC_FILE]);
- if (!list_empty(&fi->inmem_ilist))
- list_del_init(&fi->inmem_ilist);
- spin_unlock(&sbi->inode_lock[ATOMIC_FILE]);
mutex_unlock(&fi->inmem_lock);
clear_inode_flag(inode, FI_ATOMIC_COMMIT);
@@ -496,25 +490,28 @@ int f2fs_commit_inmem_pages(struct inode *inode)
void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need)
{
if (time_to_inject(sbi, FAULT_CHECKPOINT)) {
- f2fs_show_injection_info(FAULT_CHECKPOINT);
+ f2fs_show_injection_info(sbi, FAULT_CHECKPOINT);
f2fs_stop_checkpoint(sbi, false);
}
/* balance_fs_bg is able to be pending */
if (need && excess_cached_nats(sbi))
- f2fs_balance_fs_bg(sbi);
+ f2fs_balance_fs_bg(sbi, false);
+
+ if (!f2fs_is_checkpoint_ready(sbi))
+ return;
/*
* We should do GC or end up with checkpoint, if there are so many dirty
* dir/node pages without enough free segments.
*/
if (has_not_enough_free_secs(sbi, 0, 0)) {
- mutex_lock(&sbi->gc_mutex);
+ down_write(&sbi->gc_lock);
f2fs_gc(sbi, false, false, NULL_SEGNO);
}
}
-void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi)
+void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi, bool from_bg)
{
if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
return;
@@ -532,7 +529,7 @@ void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi)
else
f2fs_build_free_nids(sbi, false, false);
- if (!is_idle(sbi) &&
+ if (!is_idle(sbi, REQ_TIME) &&
(!excess_dirty_nats(sbi) && !excess_dirty_nodes(sbi)))
return;
@@ -543,12 +540,16 @@ void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi)
excess_dirty_nats(sbi) ||
excess_dirty_nodes(sbi) ||
f2fs_time_over(sbi, CP_TIME)) {
- if (test_opt(sbi, DATA_FLUSH)) {
+ if (test_opt(sbi, DATA_FLUSH) && from_bg) {
struct blk_plug plug;
+ mutex_lock(&sbi->flush_lock);
+
blk_start_plug(&plug);
f2fs_sync_dirty_inodes(sbi, FILE_INODE);
blk_finish_plug(&plug);
+
+ mutex_unlock(&sbi->flush_lock);
}
f2fs_sync_fs(sbi->sb, true);
stat_inc_bg_cp_count(sbi->stat_info);
@@ -558,9 +559,13 @@ void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi)
static int __submit_flush_wait(struct f2fs_sb_info *sbi,
struct block_device *bdev)
{
- struct bio *bio = f2fs_bio_alloc(sbi, 0, true);
+ struct bio *bio;
int ret;
+ bio = f2fs_bio_alloc(sbi, 0, false);
+ if (!bio)
+ return -ENOMEM;
+
bio->bi_opf = REQ_OP_WRITE | REQ_SYNC | REQ_PREFLUSH;
bio_set_dev(bio, bdev);
ret = submit_bio_wait(bio);
@@ -637,17 +642,17 @@ int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino)
return 0;
if (!test_opt(sbi, FLUSH_MERGE)) {
- atomic_inc(&fcc->issing_flush);
+ atomic_inc(&fcc->queued_flush);
ret = submit_flush_wait(sbi, ino);
- atomic_dec(&fcc->issing_flush);
+ atomic_dec(&fcc->queued_flush);
atomic_inc(&fcc->issued_flush);
return ret;
}
- if (atomic_inc_return(&fcc->issing_flush) == 1 ||
+ if (atomic_inc_return(&fcc->queued_flush) == 1 ||
f2fs_is_multi_device(sbi)) {
ret = submit_flush_wait(sbi, ino);
- atomic_dec(&fcc->issing_flush);
+ atomic_dec(&fcc->queued_flush);
atomic_inc(&fcc->issued_flush);
return ret;
@@ -666,14 +671,14 @@ int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino)
if (fcc->f2fs_issue_flush) {
wait_for_completion(&cmd.wait);
- atomic_dec(&fcc->issing_flush);
+ atomic_dec(&fcc->queued_flush);
} else {
struct llist_node *list;
list = llist_del_all(&fcc->issue_list);
if (!list) {
wait_for_completion(&cmd.wait);
- atomic_dec(&fcc->issing_flush);
+ atomic_dec(&fcc->queued_flush);
} else {
struct flush_cmd *tmp, *next;
@@ -682,7 +687,7 @@ int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino)
llist_for_each_entry_safe(tmp, next, list, llnode) {
if (tmp == &cmd) {
cmd.ret = ret;
- atomic_dec(&fcc->issing_flush);
+ atomic_dec(&fcc->queued_flush);
continue;
}
tmp->ret = ret;
@@ -711,7 +716,7 @@ int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi)
if (!fcc)
return -ENOMEM;
atomic_set(&fcc->issued_flush, 0);
- atomic_set(&fcc->issing_flush, 0);
+ atomic_set(&fcc->queued_flush, 0);
init_waitqueue_head(&fcc->flush_wait_queue);
init_llist_head(&fcc->issue_list);
SM_I(sbi)->fcc_info = fcc;
@@ -723,7 +728,7 @@ int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi)
"f2fs_flush-%u:%u", MAJOR(dev), MINOR(dev));
if (IS_ERR(fcc->f2fs_issue_flush)) {
err = PTR_ERR(fcc->f2fs_issue_flush);
- kfree(fcc);
+ kvfree(fcc);
SM_I(sbi)->fcc_info = NULL;
return err;
}
@@ -742,7 +747,7 @@ void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free)
kthread_stop(flush_thread);
}
if (free) {
- kfree(fcc);
+ kvfree(fcc);
SM_I(sbi)->fcc_info = NULL;
}
}
@@ -809,9 +814,13 @@ static void __remove_dirty_segment(struct f2fs_sb_info *sbi, unsigned int segno,
if (test_and_clear_bit(segno, dirty_i->dirty_segmap[t]))
dirty_i->nr_dirty[t]--;
- if (get_valid_blocks(sbi, segno, true) == 0)
+ if (get_valid_blocks(sbi, segno, true) == 0) {
clear_bit(GET_SEC_FROM_SEG(sbi, segno),
dirty_i->victim_secmap);
+#ifdef CONFIG_F2FS_CHECK_FS
+ clear_bit(segno, SIT_I(sbi)->invalid_segmap);
+#endif
+ }
}
}
@@ -823,7 +832,7 @@ static void __remove_dirty_segment(struct f2fs_sb_info *sbi, unsigned int segno,
static void locate_dirty_segment(struct f2fs_sb_info *sbi, unsigned int segno)
{
struct dirty_seglist_info *dirty_i = DIRTY_I(sbi);
- unsigned short valid_blocks;
+ unsigned short valid_blocks, ckpt_valid_blocks;
if (segno == NULL_SEGNO || IS_CURSEG(sbi, segno))
return;
@@ -831,8 +840,10 @@ static void locate_dirty_segment(struct f2fs_sb_info *sbi, unsigned int segno)
mutex_lock(&dirty_i->seglist_lock);
valid_blocks = get_valid_blocks(sbi, segno, false);
+ ckpt_valid_blocks = get_ckpt_valid_blocks(sbi, segno);
- if (valid_blocks == 0) {
+ if (valid_blocks == 0 && (!is_sbi_flag_set(sbi, SBI_CP_DISABLED) ||
+ ckpt_valid_blocks == sbi->blocks_per_seg)) {
__locate_dirty_segment(sbi, segno, PRE);
__remove_dirty_segment(sbi, segno, DIRTY);
} else if (valid_blocks < sbi->blocks_per_seg) {
@@ -845,6 +856,82 @@ static void locate_dirty_segment(struct f2fs_sb_info *sbi, unsigned int segno)
mutex_unlock(&dirty_i->seglist_lock);
}
+/* This moves currently empty dirty blocks to prefree. Must hold seglist_lock */
+void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi)
+{
+ struct dirty_seglist_info *dirty_i = DIRTY_I(sbi);
+ unsigned int segno;
+
+ mutex_lock(&dirty_i->seglist_lock);
+ for_each_set_bit(segno, dirty_i->dirty_segmap[DIRTY], MAIN_SEGS(sbi)) {
+ if (get_valid_blocks(sbi, segno, false))
+ continue;
+ if (IS_CURSEG(sbi, segno))
+ continue;
+ __locate_dirty_segment(sbi, segno, PRE);
+ __remove_dirty_segment(sbi, segno, DIRTY);
+ }
+ mutex_unlock(&dirty_i->seglist_lock);
+}
+
+block_t f2fs_get_unusable_blocks(struct f2fs_sb_info *sbi)
+{
+ int ovp_hole_segs =
+ (overprovision_segments(sbi) - reserved_segments(sbi));
+ block_t ovp_holes = ovp_hole_segs << sbi->log_blocks_per_seg;
+ struct dirty_seglist_info *dirty_i = DIRTY_I(sbi);
+ block_t holes[2] = {0, 0}; /* DATA and NODE */
+ block_t unusable;
+ struct seg_entry *se;
+ unsigned int segno;
+
+ mutex_lock(&dirty_i->seglist_lock);
+ for_each_set_bit(segno, dirty_i->dirty_segmap[DIRTY], MAIN_SEGS(sbi)) {
+ se = get_seg_entry(sbi, segno);
+ if (IS_NODESEG(se->type))
+ holes[NODE] += sbi->blocks_per_seg - se->valid_blocks;
+ else
+ holes[DATA] += sbi->blocks_per_seg - se->valid_blocks;
+ }
+ mutex_unlock(&dirty_i->seglist_lock);
+
+ unusable = holes[DATA] > holes[NODE] ? holes[DATA] : holes[NODE];
+ if (unusable > ovp_holes)
+ return unusable - ovp_holes;
+ return 0;
+}
+
+int f2fs_disable_cp_again(struct f2fs_sb_info *sbi, block_t unusable)
+{
+ int ovp_hole_segs =
+ (overprovision_segments(sbi) - reserved_segments(sbi));
+ if (unusable > F2FS_OPTION(sbi).unusable_cap)
+ return -EAGAIN;
+ if (is_sbi_flag_set(sbi, SBI_CP_DISABLED_QUICK) &&
+ dirty_segments(sbi) > ovp_hole_segs)
+ return -EAGAIN;
+ return 0;
+}
+
+/* This is only used by SBI_CP_DISABLED */
+static unsigned int get_free_segment(struct f2fs_sb_info *sbi)
+{
+ struct dirty_seglist_info *dirty_i = DIRTY_I(sbi);
+ unsigned int segno = 0;
+
+ mutex_lock(&dirty_i->seglist_lock);
+ for_each_set_bit(segno, dirty_i->dirty_segmap[DIRTY], MAIN_SEGS(sbi)) {
+ if (get_valid_blocks(sbi, segno, false))
+ continue;
+ if (get_ckpt_valid_blocks(sbi, segno))
+ continue;
+ mutex_unlock(&dirty_i->seglist_lock);
+ return segno;
+ }
+ mutex_unlock(&dirty_i->seglist_lock);
+ return NULL_SEGNO;
+}
+
static struct discard_cmd *__create_discard_cmd(struct f2fs_sb_info *sbi,
struct block_device *bdev, block_t lstart,
block_t start, block_t len)
@@ -865,7 +952,7 @@ static struct discard_cmd *__create_discard_cmd(struct f2fs_sb_info *sbi,
dc->len = len;
dc->ref = 0;
dc->state = D_PREP;
- dc->issuing = 0;
+ dc->queued = 0;
dc->error = 0;
init_completion(&dc->wait);
list_add_tail(&dc->list, pend_list);
@@ -880,7 +967,8 @@ static struct discard_cmd *__create_discard_cmd(struct f2fs_sb_info *sbi,
static struct discard_cmd *__attach_discard_cmd(struct f2fs_sb_info *sbi,
struct block_device *bdev, block_t lstart,
block_t start, block_t len,
- struct rb_node *parent, struct rb_node **p)
+ struct rb_node *parent, struct rb_node **p,
+ bool leftmost)
{
struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;
struct discard_cmd *dc;
@@ -888,7 +976,7 @@ static struct discard_cmd *__attach_discard_cmd(struct f2fs_sb_info *sbi,
dc = __create_discard_cmd(sbi, bdev, lstart, start, len);
rb_link_node(&dc->rb_node, parent, p);
- rb_insert_color(&dc->rb_node, &dcc->root);
+ rb_insert_color_cached(&dc->rb_node, &dcc->root, leftmost);
return dc;
}
@@ -897,10 +985,10 @@ static void __detach_discard_cmd(struct discard_cmd_control *dcc,
struct discard_cmd *dc)
{
if (dc->state == D_DONE)
- atomic_sub(dc->issuing, &dcc->issing_discard);
+ atomic_sub(dc->queued, &dcc->queued_discard);
list_del(&dc->list);
- rb_erase(&dc->rb_node, &dcc->root);
+ rb_erase_cached(&dc->rb_node, &dcc->root);
dcc->undiscard_blks -= dc->len;
kmem_cache_free(discard_cmd_slab, dc);
@@ -929,8 +1017,9 @@ static void __remove_discard_cmd(struct f2fs_sb_info *sbi,
dc->error = 0;
if (dc->error)
- f2fs_msg(sbi->sb, KERN_INFO,
- "Issue discard(%u, %u, %u) failed, ret: %d",
+ printk_ratelimited(
+ "%sF2FS-fs (%s): Issue discard(%u, %u, %u) failed, ret: %d",
+ KERN_INFO, sbi->sb->s_id,
dc->lstart, dc->start, dc->len, dc->error);
__detach_discard_cmd(dcc, dc);
}
@@ -940,9 +1029,9 @@ static void f2fs_submit_discard_endio(struct bio *bio)
struct discard_cmd *dc = (struct discard_cmd *)bio->bi_private;
unsigned long flags;
- dc->error = blk_status_to_errno(bio->bi_status);
-
spin_lock_irqsave(&dc->lock, flags);
+ if (!dc->error)
+ dc->error = blk_status_to_errno(bio->bi_status);
dc->bio_ref--;
if (!dc->bio_ref && dc->state == D_SUBMIT) {
dc->state = D_DONE;
@@ -991,6 +1080,7 @@ static void __init_discard_policy(struct f2fs_sb_info *sbi,
dpolicy->max_requests = DEF_MAX_DISCARD_REQUEST;
dpolicy->io_aware_gran = MAX_PLIST_NUM;
+ dpolicy->timeout = false;
if (discard_type == DPOLICY_BG) {
dpolicy->min_interval = DEF_MIN_DISCARD_ISSUE_TIME;
@@ -1011,8 +1101,10 @@ static void __init_discard_policy(struct f2fs_sb_info *sbi,
} else if (discard_type == DPOLICY_FSTRIM) {
dpolicy->io_aware = false;
} else if (discard_type == DPOLICY_UMOUNT) {
- dpolicy->max_requests = UINT_MAX;
dpolicy->io_aware = false;
+ /* we need to issue all to keep CP_TRIMMED_FLAG */
+ dpolicy->granularity = 1;
+ dpolicy->timeout = true;
}
}
@@ -1068,7 +1160,7 @@ static int __submit_discard_cmd(struct f2fs_sb_info *sbi,
dc->len += len;
if (time_to_inject(sbi, FAULT_DISCARD)) {
- f2fs_show_injection_info(FAULT_DISCARD);
+ f2fs_show_injection_info(sbi, FAULT_DISCARD);
err = -EIO;
goto submit;
}
@@ -1100,8 +1192,8 @@ static int __submit_discard_cmd(struct f2fs_sb_info *sbi,
dc->bio_ref++;
spin_unlock_irqrestore(&dc->lock, flags);
- atomic_inc(&dcc->issing_discard);
- dc->issuing++;
+ atomic_inc(&dcc->queued_discard);
+ dc->queued++;
list_move_tail(&dc->list, wait_list);
/* sanity check on discard range */
@@ -1122,12 +1214,14 @@ static int __submit_discard_cmd(struct f2fs_sb_info *sbi,
len = total_len;
}
- if (!err && len)
+ if (!err && len) {
+ dcc->undiscard_blks -= len;
__update_discard_tree_range(sbi, bdev, lstart, start, len);
+ }
return err;
}
-static struct discard_cmd *__insert_discard_tree(struct f2fs_sb_info *sbi,
+static void __insert_discard_tree(struct f2fs_sb_info *sbi,
struct block_device *bdev, block_t lstart,
block_t start, block_t len,
struct rb_node **insert_p,
@@ -1136,7 +1230,7 @@ static struct discard_cmd *__insert_discard_tree(struct f2fs_sb_info *sbi,
struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;
struct rb_node **p;
struct rb_node *parent = NULL;
- struct discard_cmd *dc = NULL;
+ bool leftmost = true;
if (insert_p && insert_parent) {
parent = insert_parent;
@@ -1144,13 +1238,11 @@ static struct discard_cmd *__insert_discard_tree(struct f2fs_sb_info *sbi,
goto do_insert;
}
- p = f2fs_lookup_rb_tree_for_insert(sbi, &dcc->root, &parent, lstart);
+ p = f2fs_lookup_rb_tree_for_insert(sbi, &dcc->root, &parent,
+ lstart, &leftmost);
do_insert:
- dc = __attach_discard_cmd(sbi, bdev, lstart, start, len, parent, p);
- if (!dc)
- return NULL;
-
- return dc;
+ __attach_discard_cmd(sbi, bdev, lstart, start, len, parent,
+ p, leftmost);
}
static void __relocate_discard_cmd(struct discard_cmd_control *dcc,
@@ -1214,7 +1306,7 @@ static void __update_discard_tree_range(struct f2fs_sb_info *sbi,
NULL, lstart,
(struct rb_entry **)&prev_dc,
(struct rb_entry **)&next_dc,
- &insert_p, &insert_parent, true);
+ &insert_p, &insert_parent, true, NULL);
if (dc)
prev_dc = dc;
@@ -1292,6 +1384,9 @@ static int __queue_discard_cmd(struct f2fs_sb_info *sbi,
{
block_t lblkstart = blkstart;
+ if (!f2fs_bdev_support_discard(bdev))
+ return 0;
+
trace_f2fs_queue_discard(bdev, blkstart, blklen);
if (f2fs_is_multi_device(sbi)) {
@@ -1322,7 +1417,7 @@ static unsigned int __issue_discard_cmd_orderly(struct f2fs_sb_info *sbi,
NULL, pos,
(struct rb_entry **)&prev_dc,
(struct rb_entry **)&next_dc,
- &insert_p, &insert_parent, true);
+ &insert_p, &insert_parent, true, NULL);
if (!dc)
dc = next_dc;
@@ -1335,7 +1430,7 @@ static unsigned int __issue_discard_cmd_orderly(struct f2fs_sb_info *sbi,
if (dc->state != D_PREP)
goto next;
- if (dpolicy->io_aware && !is_idle(sbi)) {
+ if (dpolicy->io_aware && !is_idle(sbi, DISCARD_TIME)) {
io_interrupted = true;
break;
}
@@ -1364,6 +1459,8 @@ static unsigned int __issue_discard_cmd_orderly(struct f2fs_sb_info *sbi,
return issued;
}
+static unsigned int __wait_all_discard_cmd(struct f2fs_sb_info *sbi,
+ struct discard_policy *dpolicy);
static int __issue_discard_cmd(struct f2fs_sb_info *sbi,
struct discard_policy *dpolicy)
@@ -1372,10 +1469,19 @@ static int __issue_discard_cmd(struct f2fs_sb_info *sbi,
struct list_head *pend_list;
struct discard_cmd *dc, *tmp;
struct blk_plug plug;
- int i, issued = 0;
+ int i, issued;
bool io_interrupted = false;
+ if (dpolicy->timeout)
+ f2fs_update_time(sbi, UMOUNT_DISCARD_TIMEOUT);
+
+retry:
+ issued = 0;
for (i = MAX_PLIST_NUM - 1; i >= 0; i--) {
+ if (dpolicy->timeout &&
+ f2fs_time_over(sbi, UMOUNT_DISCARD_TIMEOUT))
+ break;
+
if (i + 1 < dpolicy->granularity)
break;
@@ -1394,8 +1500,12 @@ static int __issue_discard_cmd(struct f2fs_sb_info *sbi,
list_for_each_entry_safe(dc, tmp, pend_list, list) {
f2fs_bug_on(sbi, dc->state != D_PREP);
+ if (dpolicy->timeout &&
+ f2fs_time_over(sbi, UMOUNT_DISCARD_TIMEOUT))
+ break;
+
if (dpolicy->io_aware && i < dpolicy->io_aware_gran &&
- !is_idle(sbi)) {
+ !is_idle(sbi, DISCARD_TIME)) {
io_interrupted = true;
break;
}
@@ -1413,6 +1523,11 @@ static int __issue_discard_cmd(struct f2fs_sb_info *sbi,
break;
}
+ if (dpolicy->type == DPOLICY_UMOUNT && issued) {
+ __wait_all_discard_cmd(sbi, dpolicy);
+ goto retry;
+ }
+
if (!issued && io_interrupted)
issued = -1;
@@ -1562,7 +1677,7 @@ void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi)
}
/* This comes from f2fs_put_super */
-bool f2fs_wait_discard_bios(struct f2fs_sb_info *sbi)
+bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi)
{
struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;
struct discard_policy dpolicy;
@@ -1603,6 +1718,10 @@ static int issue_discard_thread(void *data)
if (dcc->discard_wake)
dcc->discard_wake = 0;
+ /* clean up pending candidates before going to sleep */
+ if (atomic_read(&dcc->queued_discard))
+ __wait_all_discard_cmd(sbi, NULL);
+
if (try_to_freeze())
continue;
if (f2fs_readonly(sbi->sb))
@@ -1624,7 +1743,9 @@ static int issue_discard_thread(void *data)
__wait_all_discard_cmd(sbi, &dpolicy);
wait_ms = dpolicy.min_interval;
} else if (issued == -1){
- wait_ms = dpolicy.mid_interval;
+ wait_ms = f2fs_time_to_wait(sbi, DISCARD_TIME);
+ if (!wait_ms)
+ wait_ms = dpolicy.mid_interval;
} else {
wait_ms = dpolicy.max_interval;
}
@@ -1645,40 +1766,32 @@ static int __f2fs_issue_discard_zone(struct f2fs_sb_info *sbi,
if (f2fs_is_multi_device(sbi)) {
devi = f2fs_target_device_index(sbi, blkstart);
+ if (blkstart < FDEV(devi).start_blk ||
+ blkstart > FDEV(devi).end_blk) {
+ f2fs_err(sbi, "Invalid block %x", blkstart);
+ return -EIO;
+ }
blkstart -= FDEV(devi).start_blk;
}
- /*
- * We need to know the type of the zone: for conventional zones,
- * use regular discard if the drive supports it. For sequential
- * zones, reset the zone write pointer.
- */
- switch (get_blkz_type(sbi, bdev, blkstart)) {
-
- case BLK_ZONE_TYPE_CONVENTIONAL:
- if (!blk_queue_discard(bdev_get_queue(bdev)))
- return 0;
- return __queue_discard_cmd(sbi, bdev, lblkstart, blklen);
- case BLK_ZONE_TYPE_SEQWRITE_REQ:
- case BLK_ZONE_TYPE_SEQWRITE_PREF:
+ /* For sequential zones, reset the zone write pointer */
+ if (f2fs_blkz_is_seq(sbi, devi, blkstart)) {
sector = SECTOR_FROM_BLOCK(blkstart);
nr_sects = SECTOR_FROM_BLOCK(blklen);
if (sector & (bdev_zone_sectors(bdev) - 1) ||
nr_sects != bdev_zone_sectors(bdev)) {
- f2fs_msg(sbi->sb, KERN_INFO,
- "(%d) %s: Unaligned discard attempted (block %x + %x)",
- devi, sbi->s_ndevs ? FDEV(devi).path: "",
- blkstart, blklen);
+ f2fs_err(sbi, "(%d) %s: Unaligned zone reset attempted (block %x + %x)",
+ devi, sbi->s_ndevs ? FDEV(devi).path : "",
+ blkstart, blklen);
return -EIO;
}
trace_f2fs_issue_reset_zone(bdev, blkstart);
- return blkdev_reset_zones(bdev, sector,
- nr_sects, GFP_NOFS);
- default:
- /* Unknown zone type: broken device ? */
- return -EIO;
+ return blkdev_reset_zones(bdev, sector, nr_sects, GFP_NOFS);
}
+
+ /* For conventional zones, use regular discard if supported */
+ return __queue_discard_cmd(sbi, bdev, lblkstart, blklen);
}
#endif
@@ -1686,8 +1799,7 @@ static int __issue_discard_async(struct f2fs_sb_info *sbi,
struct block_device *bdev, block_t blkstart, block_t blklen)
{
#ifdef CONFIG_BLK_DEV_ZONED
- if (f2fs_sb_has_blkzoned(sbi->sb) &&
- bdev_zoned_model(bdev) != BLK_ZONED_NONE)
+ if (f2fs_sb_has_blkzoned(sbi) && bdev_is_zoned(bdev))
return __f2fs_issue_discard_zone(sbi, bdev, blkstart, blklen);
#endif
return __queue_discard_cmd(sbi, bdev, blkstart, blklen);
@@ -1834,7 +1946,7 @@ void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi,
unsigned int start = 0, end = -1;
unsigned int secno, start_segno;
bool force = (cpc->reason & CP_DISCARD);
- bool need_align = test_opt(sbi, LFS) && sbi->segs_per_sec > 1;
+ bool need_align = f2fs_lfs_mode(sbi) && __is_large_section(sbi);
mutex_lock(&dirty_i->seglist_lock);
@@ -1866,7 +1978,7 @@ void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi,
(end - 1) <= cpc->trim_end)
continue;
- if (!test_opt(sbi, LFS) || sbi->segs_per_sec == 1) {
+ if (!f2fs_lfs_mode(sbi) || !__is_large_section(sbi)) {
f2fs_issue_discard(sbi, START_BLOCK(sbi, start),
(end - start) << sbi->log_blocks_per_seg);
continue;
@@ -1898,7 +2010,7 @@ void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi,
sbi->blocks_per_seg, cur_pos);
len = next_pos - cur_pos;
- if (f2fs_sb_has_blkzoned(sbi->sb) ||
+ if (f2fs_sb_has_blkzoned(sbi) ||
(force && len < cpc->trim_minlen))
goto skip;
@@ -1946,13 +2058,13 @@ static int create_discard_cmd_control(struct f2fs_sb_info *sbi)
INIT_LIST_HEAD(&dcc->fstrim_list);
mutex_init(&dcc->cmd_lock);
atomic_set(&dcc->issued_discard, 0);
- atomic_set(&dcc->issing_discard, 0);
+ atomic_set(&dcc->queued_discard, 0);
atomic_set(&dcc->discard_cmd_cnt, 0);
dcc->nr_discards = 0;
dcc->max_discards = MAIN_SEGS(sbi) << sbi->log_blocks_per_seg;
dcc->undiscard_blks = 0;
dcc->next_pos = 0;
- dcc->root = RB_ROOT;
+ dcc->root = RB_ROOT_CACHED;
dcc->rbtree_check = false;
init_waitqueue_head(&dcc->discard_wait_queue);
@@ -1962,7 +2074,7 @@ static int create_discard_cmd_control(struct f2fs_sb_info *sbi)
"f2fs_discard-%u:%u", MAJOR(dev), MINOR(dev));
if (IS_ERR(dcc->f2fs_issue_discard)) {
err = PTR_ERR(dcc->f2fs_issue_discard);
- kfree(dcc);
+ kvfree(dcc);
SM_I(sbi)->dcc_info = NULL;
return err;
}
@@ -1979,7 +2091,14 @@ static void destroy_discard_cmd_control(struct f2fs_sb_info *sbi)
f2fs_stop_discard_thread(sbi);
- kfree(dcc);
+ /*
+ * Recovery can cache discard commands, so in error path of
+ * fill_super(), it needs to give a chance to handle them.
+ */
+ if (unlikely(atomic_read(&dcc->discard_cmd_cnt)))
+ f2fs_issue_discard_timeout(sbi);
+
+ kvfree(dcc);
SM_I(sbi)->dcc_info = NULL;
}
@@ -2035,15 +2154,14 @@ static void update_sit_entry(struct f2fs_sb_info *sbi, block_t blkaddr, int del)
mir_exist = f2fs_test_and_set_bit(offset,
se->cur_valid_map_mir);
if (unlikely(exist != mir_exist)) {
- f2fs_msg(sbi->sb, KERN_ERR, "Inconsistent error "
- "when setting bitmap, blk:%u, old bit:%d",
- blkaddr, exist);
+ f2fs_err(sbi, "Inconsistent error when setting bitmap, blk:%u, old bit:%d",
+ blkaddr, exist);
f2fs_bug_on(sbi, 1);
}
#endif
if (unlikely(exist)) {
- f2fs_msg(sbi->sb, KERN_ERR,
- "Bitmap was wrongly set, blk:%u", blkaddr);
+ f2fs_err(sbi, "Bitmap was wrongly set, blk:%u",
+ blkaddr);
f2fs_bug_on(sbi, 1);
se->valid_blocks--;
del = 0;
@@ -2052,8 +2170,11 @@ static void update_sit_entry(struct f2fs_sb_info *sbi, block_t blkaddr, int del)
if (!f2fs_test_and_set_bit(offset, se->discard_map))
sbi->discard_blks--;
- /* don't overwrite by SSR to keep node chain */
- if (IS_NODESEG(se->type)) {
+ /*
+ * SSR should never reuse block which is checkpointed
+ * or newly invalidated.
+ */
+ if (!is_sbi_flag_set(sbi, SBI_CP_DISABLED)) {
if (!f2fs_test_and_set_bit(offset, se->ckpt_valid_map))
se->ckpt_valid_blocks++;
}
@@ -2063,18 +2184,29 @@ static void update_sit_entry(struct f2fs_sb_info *sbi, block_t blkaddr, int del)
mir_exist = f2fs_test_and_clear_bit(offset,
se->cur_valid_map_mir);
if (unlikely(exist != mir_exist)) {
- f2fs_msg(sbi->sb, KERN_ERR, "Inconsistent error "
- "when clearing bitmap, blk:%u, old bit:%d",
- blkaddr, exist);
+ f2fs_err(sbi, "Inconsistent error when clearing bitmap, blk:%u, old bit:%d",
+ blkaddr, exist);
f2fs_bug_on(sbi, 1);
}
#endif
if (unlikely(!exist)) {
- f2fs_msg(sbi->sb, KERN_ERR,
- "Bitmap was wrongly cleared, blk:%u", blkaddr);
+ f2fs_err(sbi, "Bitmap was wrongly cleared, blk:%u",
+ blkaddr);
f2fs_bug_on(sbi, 1);
se->valid_blocks++;
del = 0;
+ } else if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
+ /*
+ * If checkpoints are off, we must not reuse data that
+ * was used in the previous checkpoint. If it was used
+ * before, we must track that to know how much space we
+ * really have.
+ */
+ if (f2fs_test_bit(offset, se->ckpt_valid_map)) {
+ spin_lock(&sbi->stat_lock);
+ sbi->unusable_block_count++;
+ spin_unlock(&sbi->stat_lock);
+ }
}
if (f2fs_test_and_clear_bit(offset, se->discard_map))
@@ -2088,7 +2220,7 @@ static void update_sit_entry(struct f2fs_sb_info *sbi, block_t blkaddr, int del)
/* update total number of valid blocks to be written in ckpt area */
SIT_I(sbi)->written_valid_blocks += del;
- if (sbi->segs_per_sec > 1)
+ if (__is_large_section(sbi))
get_sec_entry(sbi, segno)->valid_blocks += del;
}
@@ -2098,7 +2230,7 @@ void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr)
struct sit_info *sit_i = SIT_I(sbi);
f2fs_bug_on(sbi, addr == NULL_ADDR);
- if (addr == NEW_ADDR)
+ if (addr == NEW_ADDR || addr == COMPRESS_ADDR)
return;
invalidate_mapping_pages(META_MAPPING(sbi), addr, addr);
@@ -2121,7 +2253,7 @@ bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr)
struct seg_entry *se;
bool is_cp = false;
- if (!is_valid_data_blkaddr(sbi, blkaddr))
+ if (!__is_valid_data_blkaddr(blkaddr))
return true;
down_read(&sit_i->sentry_lock);
@@ -2354,9 +2486,12 @@ static void reset_curseg(struct f2fs_sb_info *sbi, int type, int modified)
static unsigned int __get_next_segno(struct f2fs_sb_info *sbi, int type)
{
/* if segs_per_sec is large than 1, we need to keep original policy. */
- if (sbi->segs_per_sec != 1)
+ if (__is_large_section(sbi))
return CURSEG_I(sbi, type)->segno;
+ if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
+ return 0;
+
if (test_opt(sbi, NOHEAP) &&
(type == CURSEG_HOT_DATA || IS_NODESEG(type)))
return 0;
@@ -2454,6 +2589,7 @@ static void change_curseg(struct f2fs_sb_info *sbi, int type)
__next_free_blkoff(sbi, curseg, 0);
sum_page = f2fs_get_sum_page(sbi, new_segno);
+ f2fs_bug_on(sbi, IS_ERR(sum_page));
sum_node = (struct f2fs_summary_block *)page_address(sum_page);
memcpy(curseg->sum_blk, sum_node, SUM_ENTRY_SIZE);
f2fs_put_page(sum_page, 1);
@@ -2500,6 +2636,15 @@ static int get_ssr_segment(struct f2fs_sb_info *sbi, int type)
return 1;
}
}
+
+ /* find valid_blocks=0 in dirty list */
+ if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
+ segno = get_free_segment(sbi);
+ if (segno != NULL_SEGNO) {
+ curseg->next_segno = segno;
+ return 1;
+ }
+ }
return 0;
}
@@ -2517,7 +2662,8 @@ static void allocate_segment_by_default(struct f2fs_sb_info *sbi,
else if (!is_set_ckpt_flags(sbi, CP_CRC_RECOVERY_FLAG) &&
type == CURSEG_WARM_NODE)
new_curseg(sbi, type, false);
- else if (curseg->alloc_type == LFS && is_next_segment_free(sbi, type))
+ else if (curseg->alloc_type == LFS && is_next_segment_free(sbi, type) &&
+ likely(!is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
new_curseg(sbi, type, false);
else if (f2fs_need_SSR(sbi) && get_ssr_segment(sbi, type))
change_curseg(sbi, type);
@@ -2527,7 +2673,40 @@ static void allocate_segment_by_default(struct f2fs_sb_info *sbi,
stat_inc_seg_type(sbi, curseg);
}
-void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi)
+void allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
+ unsigned int start, unsigned int end)
+{
+ struct curseg_info *curseg = CURSEG_I(sbi, type);
+ unsigned int segno;
+
+ down_read(&SM_I(sbi)->curseg_lock);
+ mutex_lock(&curseg->curseg_mutex);
+ down_write(&SIT_I(sbi)->sentry_lock);
+
+ segno = CURSEG_I(sbi, type)->segno;
+ if (segno < start || segno > end)
+ goto unlock;
+
+ if (f2fs_need_SSR(sbi) && get_ssr_segment(sbi, type))
+ change_curseg(sbi, type);
+ else
+ new_curseg(sbi, type, true);
+
+ stat_inc_seg_type(sbi, curseg);
+
+ locate_dirty_segment(sbi, segno);
+unlock:
+ up_write(&SIT_I(sbi)->sentry_lock);
+
+ if (segno != curseg->segno)
+ f2fs_notice(sbi, "For resize: curseg of type %d: %u ==> %u",
+ type, segno, curseg->segno);
+
+ mutex_unlock(&curseg->curseg_mutex);
+ up_read(&SM_I(sbi)->curseg_lock);
+}
+
+void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi, int type)
{
struct curseg_info *curseg;
unsigned int old_segno;
@@ -2536,10 +2715,17 @@ void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi)
down_write(&SIT_I(sbi)->sentry_lock);
for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_DATA; i++) {
+ if (type != NO_CHECK_TYPE && i != type)
+ continue;
+
curseg = CURSEG_I(sbi, i);
- old_segno = curseg->segno;
- SIT_I(sbi)->s_ops->allocate_segment(sbi, i, true);
- locate_dirty_segment(sbi, old_segno);
+ if (type == NO_CHECK_TYPE || curseg->next_blkoff ||
+ get_valid_blocks(sbi, curseg->segno, false) ||
+ get_ckpt_valid_blocks(sbi, curseg->segno)) {
+ old_segno = curseg->segno;
+ SIT_I(sbi)->s_ops->allocate_segment(sbi, i, true);
+ locate_dirty_segment(sbi, old_segno);
+ }
}
up_write(&SIT_I(sbi)->sentry_lock);
@@ -2592,7 +2778,7 @@ static unsigned int __issue_discard_cmd_range(struct f2fs_sb_info *sbi,
NULL, start,
(struct rb_entry **)&prev_dc,
(struct rb_entry **)&next_dc,
- &insert_p, &insert_parent, true);
+ &insert_p, &insert_parent, true, NULL);
if (!dc)
dc = next_dc;
@@ -2621,7 +2807,7 @@ static unsigned int __issue_discard_cmd_range(struct f2fs_sb_info *sbi,
blk_finish_plug(&plug);
mutex_unlock(&dcc->cmd_lock);
trimmed += __wait_all_discard_cmd(sbi, NULL);
- congestion_wait(BLK_RW_ASYNC, HZ/50);
+ congestion_wait(BLK_RW_ASYNC, DEFAULT_IO_TIMEOUT);
goto next;
}
skip:
@@ -2650,7 +2836,7 @@ int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range)
struct discard_policy dpolicy;
unsigned long long trimmed = 0;
int err = 0;
- bool need_align = test_opt(sbi, LFS) && sbi->segs_per_sec > 1;
+ bool need_align = f2fs_lfs_mode(sbi) && __is_large_section(sbi);
if (start >= MAX_BLKADDR(sbi) || range->len < sbi->blocksize)
return -EINVAL;
@@ -2659,8 +2845,7 @@ int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range)
goto out;
if (is_sbi_flag_set(sbi, SBI_NEED_FSCK)) {
- f2fs_msg(sbi->sb, KERN_WARNING,
- "Found FS corruption, run fsck to fix.");
+ f2fs_warn(sbi, "Found FS corruption, run fsck to fix.");
return -EFSCORRUPTED;
}
@@ -2681,9 +2866,9 @@ int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range)
if (sbi->discard_blks == 0)
goto out;
- mutex_lock(&sbi->gc_mutex);
+ down_write(&sbi->gc_lock);
err = f2fs_write_checkpoint(sbi, &cpc);
- mutex_unlock(&sbi->gc_mutex);
+ up_write(&sbi->gc_lock);
if (err)
goto out;
@@ -2856,7 +3041,8 @@ static int __get_segment_type_6(struct f2fs_io_info *fio)
if (fio->type == DATA) {
struct inode *inode = fio->page->mapping->host;
- if (is_cold_data(fio->page) || file_is_cold(inode))
+ if (is_cold_data(fio->page) || file_is_cold(inode) ||
+ f2fs_compressed_file(inode))
return CURSEG_COLD_DATA;
if (file_is_hot(inode) ||
is_inode_flag_set(inode, FI_HOT_DATA) ||
@@ -2906,6 +3092,27 @@ void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
{
struct sit_info *sit_i = SIT_I(sbi);
struct curseg_info *curseg = CURSEG_I(sbi, type);
+ bool put_pin_sem = false;
+
+ if (type == CURSEG_COLD_DATA) {
+ /* GC during CURSEG_COLD_DATA_PINNED allocation */
+ if (down_read_trylock(&sbi->pin_sem)) {
+ put_pin_sem = true;
+ } else {
+ type = CURSEG_WARM_DATA;
+ curseg = CURSEG_I(sbi, type);
+ }
+ } else if (type == CURSEG_COLD_DATA_PINNED) {
+ type = CURSEG_COLD_DATA;
+ }
+
+ /*
+ * We need to wait for node_write to avoid block allocation during
+ * checkpoint. This can only happen to quota writes which can cause
+ * the below discard race condition.
+ */
+ if (IS_DATASEG(type))
+ down_write(&sbi->node_write);
down_read(&SM_I(sbi)->curseg_lock);
@@ -2954,12 +3161,14 @@ void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
f2fs_inode_chksum_set(sbi, page);
}
+ if (F2FS_IO_ALIGNED(sbi))
+ fio->retry = false;
+
if (add_list) {
struct f2fs_bio_info *io;
INIT_LIST_HEAD(&fio->list);
fio->in_list = true;
- fio->retry = false;
io = sbi->write_io[fio->type] + fio->temp;
spin_lock(&io->io_lock);
list_add_tail(&fio->list, &io->io_list);
@@ -2969,6 +3178,12 @@ void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
mutex_unlock(&curseg->curseg_mutex);
up_read(&SM_I(sbi)->curseg_lock);
+
+ if (IS_DATASEG(type))
+ up_write(&sbi->node_write);
+
+ if (put_pin_sem)
+ up_read(&sbi->pin_sem);
}
static void update_device_state(struct f2fs_io_info *fio)
@@ -2995,7 +3210,7 @@ static void update_device_state(struct f2fs_io_info *fio)
static void do_write_page(struct f2fs_summary *sum, struct f2fs_io_info *fio)
{
int type = __get_segment_type(fio);
- bool keep_order = (test_opt(fio->sbi, LFS) && type == CURSEG_COLD_DATA);
+ bool keep_order = (f2fs_lfs_mode(fio->sbi) && type == CURSEG_COLD_DATA);
if (keep_order)
down_read(&fio->sbi->io_order_lock);
@@ -3042,6 +3257,7 @@ void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
ClearPageError(page);
f2fs_submit_page_write(&fio);
+ stat_inc_meta_count(sbi, page->index);
f2fs_update_iostat(sbi, io_type, F2FS_BLKSIZE);
}
@@ -3083,16 +3299,21 @@ int f2fs_inplace_write_data(struct f2fs_io_info *fio)
if (!IS_DATASEG(get_seg_entry(sbi, segno)->type)) {
set_sbi_flag(sbi, SBI_NEED_FSCK);
+ f2fs_warn(sbi, "%s: incorrect segment(%u) type, run fsck to fix.",
+ __func__, segno);
return -EFSCORRUPTED;
}
stat_inc_inplace_blocks(fio->sbi);
- err = f2fs_submit_page_bio(fio);
- if (!err)
+ if (fio->bio && !(SM_I(sbi)->ipu_policy & (1 << F2FS_IPU_NOCACHE)))
+ err = f2fs_merge_page_bio(fio);
+ else
+ err = f2fs_submit_page_bio(fio);
+ if (!err) {
update_device_state(fio);
-
- f2fs_update_iostat(fio->sbi, fio->io_type, F2FS_BLKSIZE);
+ f2fs_update_iostat(fio->sbi, fio->io_type, F2FS_BLKSIZE);
+ }
return err;
}
@@ -3204,17 +3425,21 @@ void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
}
void f2fs_wait_on_page_writeback(struct page *page,
- enum page_type type, bool ordered)
+ enum page_type type, bool ordered, bool locked)
{
if (PageWriteback(page)) {
struct f2fs_sb_info *sbi = F2FS_P_SB(page);
- f2fs_submit_merged_write_cond(sbi, page->mapping->host,
- 0, page->index, type);
- if (ordered)
+ /* submit cached LFS IO */
+ f2fs_submit_merged_write_cond(sbi, NULL, page, 0, type);
+ /* sbumit cached IPU IO */
+ f2fs_submit_merged_ipu_write(sbi, NULL, page);
+ if (ordered) {
wait_on_page_writeback(page);
- else
+ f2fs_bug_on(sbi, locked && PageWriteback(page));
+ } else {
wait_for_stable_page(page);
+ }
}
}
@@ -3226,16 +3451,25 @@ void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr)
if (!f2fs_post_read_required(inode))
return;
- if (!is_valid_data_blkaddr(sbi, blkaddr))
+ if (!__is_valid_data_blkaddr(blkaddr))
return;
cpage = find_lock_page(META_MAPPING(sbi), blkaddr);
if (cpage) {
- f2fs_wait_on_page_writeback(cpage, DATA, true);
+ f2fs_wait_on_page_writeback(cpage, DATA, true, true);
f2fs_put_page(cpage, 1);
}
}
+void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr,
+ block_t len)
+{
+ block_t i;
+
+ for (i = 0; i < len; i++)
+ f2fs_wait_on_block_writeback(inode, blkaddr + i);
+}
+
static int read_compacted_summaries(struct f2fs_sb_info *sbi)
{
struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
@@ -3406,8 +3640,11 @@ static int restore_curseg_summaries(struct f2fs_sb_info *sbi)
/* sanity check for summary blocks */
if (nats_in_cursum(nat_j) > NAT_JOURNAL_ENTRIES ||
- sits_in_cursum(sit_j) > SIT_JOURNAL_ENTRIES)
+ sits_in_cursum(sit_j) > SIT_JOURNAL_ENTRIES) {
+ f2fs_err(sbi, "invalid journal entries nats %u sits %u\n",
+ nats_in_cursum(nat_j), sits_in_cursum(sit_j));
return -EINVAL;
+ }
return 0;
}
@@ -3638,7 +3875,7 @@ void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc)
struct f2fs_journal *journal = curseg->journal;
struct sit_entry_set *ses, *tmp;
struct list_head *head = &SM_I(sbi)->sit_entry_set;
- bool to_journal = true;
+ bool to_journal = !is_sbi_flag_set(sbi, SBI_IS_RESIZEFS);
struct seg_entry *se;
down_write(&sit_i->sentry_lock);
@@ -3657,7 +3894,8 @@ void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc)
* entries, remove all entries from journal and add and account
* them in sit entry set.
*/
- if (!__has_cursum_space(journal, sit_i->dirty_sentries, SIT_JOURNAL))
+ if (!__has_cursum_space(journal, sit_i->dirty_sentries, SIT_JOURNAL) ||
+ !to_journal)
remove_sits_in_journal(sbi);
/*
@@ -3754,8 +3992,8 @@ static int build_sit_info(struct f2fs_sb_info *sbi)
struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
struct sit_info *sit_i;
unsigned int sit_segs, start;
- char *src_bitmap;
- unsigned int bitmap_size;
+ char *src_bitmap, *bitmap;
+ unsigned int bitmap_size, main_bitmap_size, sit_bitmap_size;
/* allocate memory for SIT information */
sit_i = f2fs_kzalloc(sbi, sizeof(struct sit_info), GFP_KERNEL);
@@ -3771,40 +4009,44 @@ static int build_sit_info(struct f2fs_sb_info *sbi)
if (!sit_i->sentries)
return -ENOMEM;
- bitmap_size = f2fs_bitmap_size(MAIN_SEGS(sbi));
- sit_i->dirty_sentries_bitmap = f2fs_kvzalloc(sbi, bitmap_size,
+ main_bitmap_size = f2fs_bitmap_size(MAIN_SEGS(sbi));
+ sit_i->dirty_sentries_bitmap = f2fs_kvzalloc(sbi, main_bitmap_size,
GFP_KERNEL);
if (!sit_i->dirty_sentries_bitmap)
return -ENOMEM;
+#ifdef CONFIG_F2FS_CHECK_FS
+ bitmap_size = MAIN_SEGS(sbi) * SIT_VBLOCK_MAP_SIZE * 4;
+#else
+ bitmap_size = MAIN_SEGS(sbi) * SIT_VBLOCK_MAP_SIZE * 3;
+#endif
+ sit_i->bitmap = f2fs_kvzalloc(sbi, bitmap_size, GFP_KERNEL);
+ if (!sit_i->bitmap)
+ return -ENOMEM;
+
+ bitmap = sit_i->bitmap;
+
for (start = 0; start < MAIN_SEGS(sbi); start++) {
- sit_i->sentries[start].cur_valid_map
- = f2fs_kzalloc(sbi, SIT_VBLOCK_MAP_SIZE, GFP_KERNEL);
- sit_i->sentries[start].ckpt_valid_map
- = f2fs_kzalloc(sbi, SIT_VBLOCK_MAP_SIZE, GFP_KERNEL);
- if (!sit_i->sentries[start].cur_valid_map ||
- !sit_i->sentries[start].ckpt_valid_map)
- return -ENOMEM;
+ sit_i->sentries[start].cur_valid_map = bitmap;
+ bitmap += SIT_VBLOCK_MAP_SIZE;
+
+ sit_i->sentries[start].ckpt_valid_map = bitmap;
+ bitmap += SIT_VBLOCK_MAP_SIZE;
#ifdef CONFIG_F2FS_CHECK_FS
- sit_i->sentries[start].cur_valid_map_mir
- = f2fs_kzalloc(sbi, SIT_VBLOCK_MAP_SIZE, GFP_KERNEL);
- if (!sit_i->sentries[start].cur_valid_map_mir)
- return -ENOMEM;
+ sit_i->sentries[start].cur_valid_map_mir = bitmap;
+ bitmap += SIT_VBLOCK_MAP_SIZE;
#endif
- sit_i->sentries[start].discard_map
- = f2fs_kzalloc(sbi, SIT_VBLOCK_MAP_SIZE,
- GFP_KERNEL);
- if (!sit_i->sentries[start].discard_map)
- return -ENOMEM;
+ sit_i->sentries[start].discard_map = bitmap;
+ bitmap += SIT_VBLOCK_MAP_SIZE;
}
sit_i->tmp_map = f2fs_kzalloc(sbi, SIT_VBLOCK_MAP_SIZE, GFP_KERNEL);
if (!sit_i->tmp_map)
return -ENOMEM;
- if (sbi->segs_per_sec > 1) {
+ if (__is_large_section(sbi)) {
sit_i->sec_entries =
f2fs_kvzalloc(sbi, array_size(sizeof(struct sec_entry),
MAIN_SECS(sbi)),
@@ -3817,17 +4059,23 @@ static int build_sit_info(struct f2fs_sb_info *sbi)
sit_segs = le32_to_cpu(raw_super->segment_count_sit) >> 1;
/* setup SIT bitmap from ckeckpoint pack */
- bitmap_size = __bitmap_size(sbi, SIT_BITMAP);
+ sit_bitmap_size = __bitmap_size(sbi, SIT_BITMAP);
src_bitmap = __bitmap_ptr(sbi, SIT_BITMAP);
- sit_i->sit_bitmap = kmemdup(src_bitmap, bitmap_size, GFP_KERNEL);
+ sit_i->sit_bitmap = kmemdup(src_bitmap, sit_bitmap_size, GFP_KERNEL);
if (!sit_i->sit_bitmap)
return -ENOMEM;
#ifdef CONFIG_F2FS_CHECK_FS
- sit_i->sit_bitmap_mir = kmemdup(src_bitmap, bitmap_size, GFP_KERNEL);
+ sit_i->sit_bitmap_mir = kmemdup(src_bitmap,
+ sit_bitmap_size, GFP_KERNEL);
if (!sit_i->sit_bitmap_mir)
return -ENOMEM;
+
+ sit_i->invalid_segmap = f2fs_kvzalloc(sbi,
+ main_bitmap_size, GFP_KERNEL);
+ if (!sit_i->invalid_segmap)
+ return -ENOMEM;
#endif
/* init SIT information */
@@ -3836,11 +4084,11 @@ static int build_sit_info(struct f2fs_sb_info *sbi)
sit_i->sit_base_addr = le32_to_cpu(raw_super->sit_blkaddr);
sit_i->sit_blocks = sit_segs << sbi->log_blocks_per_seg;
sit_i->written_valid_blocks = 0;
- sit_i->bitmap_size = bitmap_size;
+ sit_i->bitmap_size = sit_bitmap_size;
sit_i->dirty_sentries = 0;
sit_i->sents_per_block = SIT_ENTRY_PER_BLOCK;
sit_i->elapsed_time = le64_to_cpu(sbi->ckpt->elapsed_time);
- sit_i->mounted_time = ktime_get_real_seconds();
+ sit_i->mounted_time = ktime_get_boottime_seconds();
init_rwsem(&sit_i->sentry_lock);
return 0;
}
@@ -3933,6 +4181,8 @@ static int build_sit_entries(struct f2fs_sb_info *sbi)
se = &sit_i->sentries[start];
page = get_current_sit_page(sbi, start);
+ if (IS_ERR(page))
+ return PTR_ERR(page);
sit_blk = (struct f2fs_sit_block *)page_address(page);
sit = sit_blk->entries[SIT_ENTRY_OFFSET(sit_i, start)];
f2fs_put_page(page, 1);
@@ -3957,7 +4207,7 @@ static int build_sit_entries(struct f2fs_sb_info *sbi)
se->valid_blocks;
}
- if (sbi->segs_per_sec > 1)
+ if (__is_large_section(sbi))
get_sec_entry(sbi, start)->valid_blocks +=
se->valid_blocks;
}
@@ -3970,10 +4220,8 @@ static int build_sit_entries(struct f2fs_sb_info *sbi)
start = le32_to_cpu(segno_in_journal(journal, i));
if (start >= MAIN_SEGS(sbi)) {
- f2fs_msg(sbi->sb, KERN_ERR,
- "Wrong journal entry on segno %u",
- start);
- set_sbi_flag(sbi, SBI_NEED_FSCK);
+ f2fs_err(sbi, "Wrong journal entry on segno %u",
+ start);
err = -EFSCORRUPTED;
break;
}
@@ -4001,7 +4249,7 @@ static int build_sit_entries(struct f2fs_sb_info *sbi)
sbi->discard_blks -= se->valid_blocks;
}
- if (sbi->segs_per_sec > 1) {
+ if (__is_large_section(sbi)) {
get_sec_entry(sbi, start)->valid_blocks +=
se->valid_blocks;
get_sec_entry(sbi, start)->valid_blocks -=
@@ -4011,10 +4259,8 @@ static int build_sit_entries(struct f2fs_sb_info *sbi)
up_read(&curseg->journal_rwsem);
if (!err && total_node_blocks != valid_node_count(sbi)) {
- f2fs_msg(sbi->sb, KERN_ERR,
- "SIT is corrupted node# %u vs %u",
- total_node_blocks, valid_node_count(sbi));
- set_sbi_flag(sbi, SBI_NEED_FSCK);
+ f2fs_err(sbi, "SIT is corrupted node# %u vs %u",
+ total_node_blocks, valid_node_count(sbi));
err = -EFSCORRUPTED;
}
@@ -4129,12 +4375,10 @@ static int sanity_check_curseg(struct f2fs_sb_info *sbi)
if (!f2fs_test_bit(blkofs, se->cur_valid_map))
continue;
out:
- f2fs_msg(sbi->sb, KERN_ERR,
- "Current segment's next free block offset is "
- "inconsistent with bitmap, logtype:%u, "
- "segno:%u, type:%u, next_blkoff:%u, blkofs:%u",
- i, curseg->segno, curseg->alloc_type,
- curseg->next_blkoff, blkofs);
+ f2fs_err(sbi,
+ "Current segment's next free block offset is inconsistent with bitmap, logtype:%u, segno:%u, type:%u, next_blkoff:%u, blkofs:%u",
+ i, curseg->segno, curseg->alloc_type,
+ curseg->next_blkoff, blkofs);
return -EFSCORRUPTED;
}
}
@@ -4194,7 +4438,7 @@ int f2fs_build_segment_manager(struct f2fs_sb_info *sbi)
if (sm_info->rec_prefree_segments > DEF_MAX_RECLAIM_PREFREE_SEGMENTS)
sm_info->rec_prefree_segments = DEF_MAX_RECLAIM_PREFREE_SEGMENTS;
- if (!test_opt(sbi, LFS))
+ if (!f2fs_lfs_mode(sbi))
sm_info->ipu_policy = 1 << F2FS_IPU_FSYNC;
sm_info->min_ipu_util = DEF_MIN_IPU_UTIL;
sm_info->min_fsync_blocks = DEF_MIN_FSYNC_BLOCKS;
@@ -4275,7 +4519,7 @@ static void destroy_dirty_segmap(struct f2fs_sb_info *sbi)
destroy_victim_secmap(sbi);
SM_I(sbi)->dirty_info = NULL;
- kfree(dirty_i);
+ kvfree(dirty_i);
}
static void destroy_curseg(struct f2fs_sb_info *sbi)
@@ -4287,10 +4531,10 @@ static void destroy_curseg(struct f2fs_sb_info *sbi)
return;
SM_I(sbi)->curseg_array = NULL;
for (i = 0; i < NR_CURSEG_TYPE; i++) {
- kfree(array[i].sum_blk);
- kfree(array[i].journal);
+ kvfree(array[i].sum_blk);
+ kvfree(array[i].journal);
}
- kfree(array);
+ kvfree(array);
}
static void destroy_free_segmap(struct f2fs_sb_info *sbi)
@@ -4301,39 +4545,31 @@ static void destroy_free_segmap(struct f2fs_sb_info *sbi)
SM_I(sbi)->free_info = NULL;
kvfree(free_i->free_segmap);
kvfree(free_i->free_secmap);
- kfree(free_i);
+ kvfree(free_i);
}
static void destroy_sit_info(struct f2fs_sb_info *sbi)
{
struct sit_info *sit_i = SIT_I(sbi);
- unsigned int start;
if (!sit_i)
return;
- if (sit_i->sentries) {
- for (start = 0; start < MAIN_SEGS(sbi); start++) {
- kfree(sit_i->sentries[start].cur_valid_map);
-#ifdef CONFIG_F2FS_CHECK_FS
- kfree(sit_i->sentries[start].cur_valid_map_mir);
-#endif
- kfree(sit_i->sentries[start].ckpt_valid_map);
- kfree(sit_i->sentries[start].discard_map);
- }
- }
- kfree(sit_i->tmp_map);
+ if (sit_i->sentries)
+ kvfree(sit_i->bitmap);
+ kvfree(sit_i->tmp_map);
kvfree(sit_i->sentries);
kvfree(sit_i->sec_entries);
kvfree(sit_i->dirty_sentries_bitmap);
SM_I(sbi)->sit_info = NULL;
- kfree(sit_i->sit_bitmap);
+ kvfree(sit_i->sit_bitmap);
#ifdef CONFIG_F2FS_CHECK_FS
- kfree(sit_i->sit_bitmap_mir);
+ kvfree(sit_i->sit_bitmap_mir);
+ kvfree(sit_i->invalid_segmap);
#endif
- kfree(sit_i);
+ kvfree(sit_i);
}
void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi)
@@ -4349,27 +4585,27 @@ void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi)
destroy_free_segmap(sbi);
destroy_sit_info(sbi);
sbi->sm_info = NULL;
- kfree(sm_info);
+ kvfree(sm_info);
}
int __init f2fs_create_segment_manager_caches(void)
{
- discard_entry_slab = f2fs_kmem_cache_create("discard_entry",
+ discard_entry_slab = f2fs_kmem_cache_create("f2fs_discard_entry",
sizeof(struct discard_entry));
if (!discard_entry_slab)
goto fail;
- discard_cmd_slab = f2fs_kmem_cache_create("discard_cmd",
+ discard_cmd_slab = f2fs_kmem_cache_create("f2fs_discard_cmd",
sizeof(struct discard_cmd));
if (!discard_cmd_slab)
goto destroy_discard_entry;
- sit_entry_set_slab = f2fs_kmem_cache_create("sit_entry_set",
+ sit_entry_set_slab = f2fs_kmem_cache_create("f2fs_sit_entry_set",
sizeof(struct sit_entry_set));
if (!sit_entry_set_slab)
goto destroy_discard_cmd;
- inmem_entry_slab = f2fs_kmem_cache_create("inmem_page_entry",
+ inmem_entry_slab = f2fs_kmem_cache_create("f2fs_inmem_page_entry",
sizeof(struct inmem_pages));
if (!inmem_entry_slab)
goto destroy_sit_entry_set;
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index 1f5db4c..218487d 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -1,12 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* fs/f2fs/segment.h
*
* Copyright (c) 2012 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/blkdev.h>
#include <linux/backing-dev.h>
@@ -85,7 +82,7 @@
(GET_SEGOFF_FROM_SEG0(sbi, blk_addr) & ((sbi)->blocks_per_seg - 1))
#define GET_SEGNO(sbi, blk_addr) \
- ((!is_valid_data_blkaddr(sbi, blk_addr)) ? \
+ ((!__is_valid_data_blkaddr(blk_addr)) ? \
NULL_SEGNO : GET_L2R_SEGNO(FREE_I(sbi), \
GET_SEGNO_FROM_SEG0(sbi, blk_addr)))
#define BLKS_PER_SEC(sbi) \
@@ -112,7 +109,7 @@
#define START_SEGNO(segno) \
(SIT_BLOCK_OFFSET(segno) * SIT_ENTRY_PER_BLOCK)
#define SIT_BLK_CNT(sbi) \
- ((MAIN_SEGS(sbi) + SIT_ENTRY_PER_BLOCK - 1) / SIT_ENTRY_PER_BLOCK)
+ DIV_ROUND_UP(MAIN_SEGS(sbi), SIT_ENTRY_PER_BLOCK)
#define f2fs_bitmap_size(nr) \
(BITS_TO_LONGS(nr) * sizeof(unsigned long))
@@ -203,18 +200,6 @@ struct segment_allocation {
void (*allocate_segment)(struct f2fs_sb_info *, int, bool);
};
-/*
- * this value is set in page as a private data which indicate that
- * the page is atomically written, and it is in inmem_pages list.
- */
-#define ATOMIC_WRITTEN_PAGE ((unsigned long)-1)
-#define DUMMY_WRITTEN_PAGE ((unsigned long)-2)
-
-#define IS_ATOMIC_WRITTEN_PAGE(page) \
- (page_private(page) == (unsigned long)ATOMIC_WRITTEN_PAGE)
-#define IS_DUMMY_WRITTEN_PAGE(page) \
- (page_private(page) == (unsigned long)DUMMY_WRITTEN_PAGE)
-
#define MAX_SKIP_GC_COUNT 16
struct inmem_pages {
@@ -229,9 +214,13 @@ struct sit_info {
block_t sit_base_addr; /* start block address of SIT area */
block_t sit_blocks; /* # of blocks used by SIT area */
block_t written_valid_blocks; /* # of valid blocks in main area */
+ char *bitmap; /* all bitmaps pointer */
char *sit_bitmap; /* SIT bitmap pointer */
#ifdef CONFIG_F2FS_CHECK_FS
char *sit_bitmap_mir; /* SIT bitmap mirror */
+
+ /* bitmap of segments to be ignored by GC in case of errors */
+ unsigned long *invalid_segmap;
#endif
unsigned int bitmap_size; /* SIT bitmap size */
@@ -312,6 +301,8 @@ struct sit_entry_set {
*/
static inline struct curseg_info *CURSEG_I(struct f2fs_sb_info *sbi, int type)
{
+ if (type == CURSEG_COLD_DATA_PINNED)
+ type = CURSEG_COLD_DATA;
return (struct curseg_info *)(SM_I(sbi)->curseg_array + type);
}
@@ -336,12 +327,18 @@ static inline unsigned int get_valid_blocks(struct f2fs_sb_info *sbi,
* In order to get # of valid blocks in a section instantly from many
* segments, f2fs manages two counting structures separately.
*/
- if (use_section && sbi->segs_per_sec > 1)
+ if (use_section && __is_large_section(sbi))
return get_sec_entry(sbi, segno)->valid_blocks;
else
return get_seg_entry(sbi, segno)->valid_blocks;
}
+static inline unsigned int get_ckpt_valid_blocks(struct f2fs_sb_info *sbi,
+ unsigned int segno)
+{
+ return get_seg_entry(sbi, segno)->ckpt_valid_blocks;
+}
+
static inline void seg_info_from_raw_sit(struct seg_entry *se,
struct f2fs_sit_entry *rs)
{
@@ -579,6 +576,15 @@ static inline bool has_not_enough_free_secs(struct f2fs_sb_info *sbi,
reserved_sections(sbi) + needed);
}
+static inline bool f2fs_is_checkpoint_ready(struct f2fs_sb_info *sbi)
+{
+ if (likely(!is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
+ return true;
+ if (likely(!has_not_enough_free_secs(sbi, 0, 0)))
+ return true;
+ return false;
+}
+
static inline bool excess_prefree_segs(struct f2fs_sb_info *sbi)
{
return prefree_segments(sbi) > SM_I(sbi)->rec_prefree_segments;
@@ -601,8 +607,10 @@ static inline int utilization(struct f2fs_sb_info *sbi)
* threashold,
* F2FS_IPU_FSYNC - activated in fsync path only for high performance flash
* storages. IPU will be triggered only if the # of dirty
- * pages over min_fsync_blocks.
- * F2FS_IPUT_DISABLE - disable IPU. (=default option)
+ * pages over min_fsync_blocks. (=default option)
+ * F2FS_IPU_ASYNC - do IPU given by asynchronous write requests.
+ * F2FS_IPU_NOCACHE - disable IPU bio cache.
+ * F2FS_IPUT_DISABLE - disable IPU. (=default option in LFS mode)
*/
#define DEF_MIN_IPU_UTIL 70
#define DEF_MIN_FSYNC_BLOCKS 8
@@ -617,6 +625,7 @@ enum {
F2FS_IPU_SSR_UTIL,
F2FS_IPU_FSYNC,
F2FS_IPU_ASYNC,
+ F2FS_IPU_NOCACHE,
};
static inline unsigned int curseg_segno(struct f2fs_sb_info *sbi,
@@ -644,14 +653,15 @@ static inline void check_seg_range(struct f2fs_sb_info *sbi, unsigned int segno)
f2fs_bug_on(sbi, segno > TOTAL_SEGS(sbi) - 1);
}
-static inline void verify_block_addr(struct f2fs_io_info *fio, block_t blk_addr)
+static inline void verify_fio_blkaddr(struct f2fs_io_info *fio)
{
struct f2fs_sb_info *sbi = fio->sbi;
- if (__is_meta_io(fio))
- verify_blkaddr(sbi, blk_addr, META_GENERIC);
- else
- verify_blkaddr(sbi, blk_addr, DATA_GENERIC);
+ if (__is_valid_data_blkaddr(fio->old_blkaddr))
+ verify_blkaddr(sbi, fio->old_blkaddr, __is_meta_io(fio) ?
+ META_GENERIC : DATA_GENERIC);
+ verify_blkaddr(sbi, fio->new_blkaddr, __is_meta_io(fio) ?
+ META_GENERIC : DATA_GENERIC_ENHANCE);
}
/*
@@ -680,9 +690,8 @@ static inline int check_block_count(struct f2fs_sb_info *sbi,
} while (cur_pos < sbi->blocks_per_seg);
if (unlikely(GET_SIT_VBLOCKS(raw_sit) != valid_blocks)) {
- f2fs_msg(sbi->sb, KERN_ERR,
- "Mismatch valid blocks %d vs. %d",
- GET_SIT_VBLOCKS(raw_sit), valid_blocks);
+ f2fs_err(sbi, "Mismatch valid blocks %d vs. %d",
+ GET_SIT_VBLOCKS(raw_sit), valid_blocks);
set_sbi_flag(sbi, SBI_NEED_FSCK);
return -EFSCORRUPTED;
}
@@ -690,9 +699,8 @@ static inline int check_block_count(struct f2fs_sb_info *sbi,
/* check segment usage, and check boundary of a given segment number */
if (unlikely(GET_SIT_VBLOCKS(raw_sit) > sbi->blocks_per_seg
|| segno > TOTAL_SEGS(sbi) - 1)) {
- f2fs_msg(sbi->sb, KERN_ERR,
- "Wrong valid blocks %d or segno %u",
- GET_SIT_VBLOCKS(raw_sit), segno);
+ f2fs_err(sbi, "Wrong valid blocks %d or segno %u",
+ GET_SIT_VBLOCKS(raw_sit), segno);
set_sbi_flag(sbi, SBI_NEED_FSCK);
return -EFSCORRUPTED;
}
@@ -748,7 +756,7 @@ static inline unsigned long long get_mtime(struct f2fs_sb_info *sbi,
bool base_time)
{
struct sit_info *sit_i = SIT_I(sbi);
- time64_t diff, now = ktime_get_real_seconds();
+ time64_t diff, now = ktime_get_boottime_seconds();
if (now >= sit_i->mounted_time)
return sit_i->elapsed_time + now - sit_i->mounted_time;
@@ -852,7 +860,7 @@ static inline void wake_up_discard_thread(struct f2fs_sb_info *sbi, bool force)
}
}
mutex_unlock(&dcc->cmd_lock);
- if (!wakeup)
+ if (!wakeup || !is_idle(sbi, DISCARD_TIME))
return;
wake_up:
dcc->discard_wake = 1;
diff --git a/fs/f2fs/shrinker.c b/fs/f2fs/shrinker.c
index 29042e6..d66de599 100644
--- a/fs/f2fs/shrinker.c
+++ b/fs/f2fs/shrinker.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* f2fs shrinker support
* the basic infra was copied from fs/ubifs/shrinker.c
*
* Copyright (c) 2015 Motorola Mobility
* Copyright (c) 2015 Jaegeuk Kim <jaegeuk@kernel.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/fs.h>
#include <linux/f2fs_fs.h>
@@ -61,7 +58,7 @@ unsigned long f2fs_shrink_count(struct shrinker *shrink,
/* count extent cache entries */
count += __count_extent_cache(sbi);
- /* shrink clean nat cache entries */
+ /* count clean nat cache entries */
count += __count_nat_entries(sbi);
/* count free nids cache entries */
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 89fc8a4..e10330a 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* fs/f2fs/super.c
*
* Copyright (c) 2012 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/init.h>
@@ -26,6 +23,7 @@
#include <linux/f2fs_fs.h>
#include <linux/sysfs.h>
#include <linux/quota.h>
+#include <linux/unicode.h>
#include "f2fs.h"
#include "node.h"
@@ -41,7 +39,7 @@ static struct kmem_cache *f2fs_inode_cachep;
#ifdef CONFIG_F2FS_FAULT_INJECTION
-char *f2fs_fault_name[FAULT_MAX] = {
+const char *f2fs_fault_name[FAULT_MAX] = {
[FAULT_KMALLOC] = "kmalloc",
[FAULT_KVMALLOC] = "kvmalloc",
[FAULT_PAGE_ALLOC] = "page alloc",
@@ -53,9 +51,10 @@ char *f2fs_fault_name[FAULT_MAX] = {
[FAULT_DIR_DEPTH] = "too big dir depth",
[FAULT_EVICT_INODE] = "evict_inode fail",
[FAULT_TRUNCATE] = "truncate fail",
- [FAULT_IO] = "IO error",
+ [FAULT_READ_IO] = "read IO error",
[FAULT_CHECKPOINT] = "checkpoint error",
[FAULT_DISCARD] = "discard error",
+ [FAULT_WRITE_IO] = "write IO error",
};
void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
@@ -138,6 +137,14 @@ enum {
Opt_alloc,
Opt_fsync,
Opt_test_dummy_encryption,
+ Opt_inlinecrypt,
+ Opt_checkpoint_disable,
+ Opt_checkpoint_disable_cap,
+ Opt_checkpoint_disable_cap_perc,
+ Opt_checkpoint_enable,
+ Opt_compress_algorithm,
+ Opt_compress_log_size,
+ Opt_compress_extension,
Opt_err,
};
@@ -195,45 +202,104 @@ static match_table_t f2fs_tokens = {
{Opt_whint, "whint_mode=%s"},
{Opt_alloc, "alloc_mode=%s"},
{Opt_fsync, "fsync_mode=%s"},
+ {Opt_test_dummy_encryption, "test_dummy_encryption=%s"},
{Opt_test_dummy_encryption, "test_dummy_encryption"},
+ {Opt_inlinecrypt, "inlinecrypt"},
+ {Opt_checkpoint_disable, "checkpoint=disable"},
+ {Opt_checkpoint_disable_cap, "checkpoint=disable:%u"},
+ {Opt_checkpoint_disable_cap_perc, "checkpoint=disable:%u%%"},
+ {Opt_checkpoint_enable, "checkpoint=enable"},
+ {Opt_compress_algorithm, "compress_algorithm=%s"},
+ {Opt_compress_log_size, "compress_log_size=%u"},
+ {Opt_compress_extension, "compress_extension=%s"},
{Opt_err, NULL},
};
-void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...)
+void f2fs_printk(struct f2fs_sb_info *sbi, const char *fmt, ...)
{
struct va_format vaf;
va_list args;
+ int level;
va_start(args, fmt);
- vaf.fmt = fmt;
+
+ level = printk_get_level(fmt);
+ vaf.fmt = printk_skip_level(fmt);
vaf.va = &args;
- printk_ratelimited("%sF2FS-fs (%s): %pV\n", level, sb->s_id, &vaf);
+ printk("%c%cF2FS-fs (%s): %pV\n",
+ KERN_SOH_ASCII, level, sbi->sb->s_id, &vaf);
+
va_end(args);
}
+#ifdef CONFIG_UNICODE
+static const struct f2fs_sb_encodings {
+ __u16 magic;
+ char *name;
+ char *version;
+} f2fs_sb_encoding_map[] = {
+ {F2FS_ENC_UTF8_12_1, "utf8", "12.1.0"},
+};
+
+static int f2fs_sb_read_encoding(const struct f2fs_super_block *sb,
+ const struct f2fs_sb_encodings **encoding,
+ __u16 *flags)
+{
+ __u16 magic = le16_to_cpu(sb->s_encoding);
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(f2fs_sb_encoding_map); i++)
+ if (magic == f2fs_sb_encoding_map[i].magic)
+ break;
+
+ if (i >= ARRAY_SIZE(f2fs_sb_encoding_map))
+ return -EINVAL;
+
+ *encoding = &f2fs_sb_encoding_map[i];
+ *flags = le16_to_cpu(sb->s_encoding_flags);
+
+ return 0;
+}
+#endif
+
static inline void limit_reserve_root(struct f2fs_sb_info *sbi)
{
- block_t limit = (sbi->user_block_count << 1) / 1000;
+ block_t limit = min((sbi->user_block_count << 1) / 1000,
+ sbi->user_block_count - sbi->reserved_blocks);
/* limit is 0.2% */
if (test_opt(sbi, RESERVE_ROOT) &&
F2FS_OPTION(sbi).root_reserved_blocks > limit) {
F2FS_OPTION(sbi).root_reserved_blocks = limit;
- f2fs_msg(sbi->sb, KERN_INFO,
- "Reduce reserved blocks for root = %u",
- F2FS_OPTION(sbi).root_reserved_blocks);
+ f2fs_info(sbi, "Reduce reserved blocks for root = %u",
+ F2FS_OPTION(sbi).root_reserved_blocks);
}
if (!test_opt(sbi, RESERVE_ROOT) &&
(!uid_eq(F2FS_OPTION(sbi).s_resuid,
make_kuid(&init_user_ns, F2FS_DEF_RESUID)) ||
!gid_eq(F2FS_OPTION(sbi).s_resgid,
make_kgid(&init_user_ns, F2FS_DEF_RESGID))))
- f2fs_msg(sbi->sb, KERN_INFO,
- "Ignore s_resuid=%u, s_resgid=%u w/o reserve_root",
- from_kuid_munged(&init_user_ns,
- F2FS_OPTION(sbi).s_resuid),
- from_kgid_munged(&init_user_ns,
- F2FS_OPTION(sbi).s_resgid));
+ f2fs_info(sbi, "Ignore s_resuid=%u, s_resgid=%u w/o reserve_root",
+ from_kuid_munged(&init_user_ns,
+ F2FS_OPTION(sbi).s_resuid),
+ from_kgid_munged(&init_user_ns,
+ F2FS_OPTION(sbi).s_resgid));
+}
+
+static inline void adjust_unusable_cap_perc(struct f2fs_sb_info *sbi)
+{
+ if (!F2FS_OPTION(sbi).unusable_cap_perc)
+ return;
+
+ if (F2FS_OPTION(sbi).unusable_cap_perc == 100)
+ F2FS_OPTION(sbi).unusable_cap = sbi->user_block_count;
+ else
+ F2FS_OPTION(sbi).unusable_cap = (sbi->user_block_count / 100) *
+ F2FS_OPTION(sbi).unusable_cap_perc;
+
+ f2fs_info(sbi, "Adjust unusable cap for checkpoint=disable = %u / %u%%",
+ F2FS_OPTION(sbi).unusable_cap,
+ F2FS_OPTION(sbi).unusable_cap_perc);
}
static void init_once(void *foo)
@@ -254,42 +320,36 @@ static int f2fs_set_qf_name(struct super_block *sb, int qtype,
int ret = -EINVAL;
if (sb_any_quota_loaded(sb) && !F2FS_OPTION(sbi).s_qf_names[qtype]) {
- f2fs_msg(sb, KERN_ERR,
- "Cannot change journaled "
- "quota options when quota turned on");
+ f2fs_err(sbi, "Cannot change journaled quota options when quota turned on");
return -EINVAL;
}
- if (f2fs_sb_has_quota_ino(sb)) {
- f2fs_msg(sb, KERN_INFO,
- "QUOTA feature is enabled, so ignore qf_name");
+ if (f2fs_sb_has_quota_ino(sbi)) {
+ f2fs_info(sbi, "QUOTA feature is enabled, so ignore qf_name");
return 0;
}
qname = match_strdup(args);
if (!qname) {
- f2fs_msg(sb, KERN_ERR,
- "Not enough memory for storing quotafile name");
- return -EINVAL;
+ f2fs_err(sbi, "Not enough memory for storing quotafile name");
+ return -ENOMEM;
}
if (F2FS_OPTION(sbi).s_qf_names[qtype]) {
if (strcmp(F2FS_OPTION(sbi).s_qf_names[qtype], qname) == 0)
ret = 0;
else
- f2fs_msg(sb, KERN_ERR,
- "%s quota file already specified",
+ f2fs_err(sbi, "%s quota file already specified",
QTYPE2NAME(qtype));
goto errout;
}
if (strchr(qname, '/')) {
- f2fs_msg(sb, KERN_ERR,
- "quotafile must be on filesystem root");
+ f2fs_err(sbi, "quotafile must be on filesystem root");
goto errout;
}
F2FS_OPTION(sbi).s_qf_names[qtype] = qname;
set_opt(sbi, QUOTA);
return 0;
errout:
- kfree(qname);
+ kvfree(qname);
return ret;
}
@@ -298,11 +358,10 @@ static int f2fs_clear_qf_name(struct super_block *sb, int qtype)
struct f2fs_sb_info *sbi = F2FS_SB(sb);
if (sb_any_quota_loaded(sb) && F2FS_OPTION(sbi).s_qf_names[qtype]) {
- f2fs_msg(sb, KERN_ERR, "Cannot change journaled quota options"
- " when quota turned on");
+ f2fs_err(sbi, "Cannot change journaled quota options when quota turned on");
return -EINVAL;
}
- kfree(F2FS_OPTION(sbi).s_qf_names[qtype]);
+ kvfree(F2FS_OPTION(sbi).s_qf_names[qtype]);
F2FS_OPTION(sbi).s_qf_names[qtype] = NULL;
return 0;
}
@@ -314,9 +373,8 @@ static int f2fs_check_quota_options(struct f2fs_sb_info *sbi)
* 'grpquota' mount options are allowed even without quota feature
* to support legacy quotas in quota files.
*/
- if (test_opt(sbi, PRJQUOTA) && !f2fs_sb_has_project_quota(sbi->sb)) {
- f2fs_msg(sbi->sb, KERN_ERR, "Project quota feature not enabled. "
- "Cannot enable project quota enforcement.");
+ if (test_opt(sbi, PRJQUOTA) && !f2fs_sb_has_project_quota(sbi)) {
+ f2fs_err(sbi, "Project quota feature not enabled. Cannot enable project quota enforcement.");
return -1;
}
if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] ||
@@ -336,38 +394,79 @@ static int f2fs_check_quota_options(struct f2fs_sb_info *sbi)
if (test_opt(sbi, GRPQUOTA) || test_opt(sbi, USRQUOTA) ||
test_opt(sbi, PRJQUOTA)) {
- f2fs_msg(sbi->sb, KERN_ERR, "old and new quota "
- "format mixing");
+ f2fs_err(sbi, "old and new quota format mixing");
return -1;
}
if (!F2FS_OPTION(sbi).s_jquota_fmt) {
- f2fs_msg(sbi->sb, KERN_ERR, "journaled quota format "
- "not specified");
+ f2fs_err(sbi, "journaled quota format not specified");
return -1;
}
}
- if (f2fs_sb_has_quota_ino(sbi->sb) && F2FS_OPTION(sbi).s_jquota_fmt) {
- f2fs_msg(sbi->sb, KERN_INFO,
- "QUOTA feature is enabled, so ignore jquota_fmt");
+ if (f2fs_sb_has_quota_ino(sbi) && F2FS_OPTION(sbi).s_jquota_fmt) {
+ f2fs_info(sbi, "QUOTA feature is enabled, so ignore jquota_fmt");
F2FS_OPTION(sbi).s_jquota_fmt = 0;
}
return 0;
}
#endif
-static int parse_options(struct super_block *sb, char *options)
+static int f2fs_set_test_dummy_encryption(struct super_block *sb,
+ const char *opt,
+ const substring_t *arg,
+ bool is_remount)
+{
+ struct f2fs_sb_info *sbi = F2FS_SB(sb);
+#ifdef CONFIG_FS_ENCRYPTION
+ int err;
+
+ if (!f2fs_sb_has_encrypt(sbi)) {
+ f2fs_err(sbi, "Encrypt feature is off");
+ return -EINVAL;
+ }
+
+ /*
+ * This mount option is just for testing, and it's not worthwhile to
+ * implement the extra complexity (e.g. RCU protection) that would be
+ * needed to allow it to be set or changed during remount. We do allow
+ * it to be specified during remount, but only if there is no change.
+ */
+ if (is_remount && !F2FS_OPTION(sbi).dummy_enc_ctx.ctx) {
+ f2fs_warn(sbi, "Can't set test_dummy_encryption on remount");
+ return -EINVAL;
+ }
+ err = fscrypt_set_test_dummy_encryption(
+ sb, arg, &F2FS_OPTION(sbi).dummy_enc_ctx);
+ if (err) {
+ if (err == -EEXIST)
+ f2fs_warn(sbi,
+ "Can't change test_dummy_encryption on remount");
+ else if (err == -EINVAL)
+ f2fs_warn(sbi, "Value of option \"%s\" is unrecognized",
+ opt);
+ else
+ f2fs_warn(sbi, "Error processing option \"%s\" [%d]",
+ opt, err);
+ return -EINVAL;
+ }
+ f2fs_warn(sbi, "Test dummy encryption mode enabled");
+#else
+ f2fs_warn(sbi, "Test dummy encryption mount option ignored");
+#endif
+ return 0;
+}
+
+static int parse_options(struct super_block *sb, char *options, bool is_remount)
{
struct f2fs_sb_info *sbi = F2FS_SB(sb);
substring_t args[MAX_OPT_ARGS];
+ unsigned char (*ext)[F2FS_EXTENSION_LEN];
char *p, *name;
- int arg = 0;
+ int arg = 0, ext_cnt;
kuid_t uid;
kgid_t gid;
-#ifdef CONFIG_QUOTA
int ret;
-#endif
if (!options)
return 0;
@@ -389,27 +488,24 @@ static int parse_options(struct super_block *sb, char *options)
if (!name)
return -ENOMEM;
- if (strlen(name) == 2 && !strncmp(name, "on", 2)) {
- set_opt(sbi, BG_GC);
- clear_opt(sbi, FORCE_FG_GC);
- } else if (strlen(name) == 3 && !strncmp(name, "off", 3)) {
- clear_opt(sbi, BG_GC);
- clear_opt(sbi, FORCE_FG_GC);
- } else if (strlen(name) == 4 && !strncmp(name, "sync", 4)) {
- set_opt(sbi, BG_GC);
- set_opt(sbi, FORCE_FG_GC);
+ if (!strcmp(name, "on")) {
+ F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_ON;
+ } else if (!strcmp(name, "off")) {
+ F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_OFF;
+ } else if (!strcmp(name, "sync")) {
+ F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_SYNC;
} else {
- kfree(name);
+ kvfree(name);
return -EINVAL;
}
- kfree(name);
+ kvfree(name);
break;
case Opt_disable_roll_forward:
set_opt(sbi, DISABLE_ROLL_FORWARD);
break;
case Opt_norecovery:
/* this option mounts f2fs with ro */
- set_opt(sbi, DISABLE_ROLL_FORWARD);
+ set_opt(sbi, NORECOVERY);
if (!f2fs_readonly(sb))
return -EINVAL;
break;
@@ -417,9 +513,8 @@ static int parse_options(struct super_block *sb, char *options)
set_opt(sbi, DISCARD);
break;
case Opt_nodiscard:
- if (f2fs_sb_has_blkzoned(sb)) {
- f2fs_msg(sb, KERN_WARNING,
- "discard is required for zoned block devices");
+ if (f2fs_sb_has_blkzoned(sbi)) {
+ f2fs_warn(sbi, "discard is required for zoned block devices");
return -EINVAL;
}
clear_opt(sbi, DISCARD);
@@ -451,20 +546,16 @@ static int parse_options(struct super_block *sb, char *options)
break;
#else
case Opt_user_xattr:
- f2fs_msg(sb, KERN_INFO,
- "user_xattr options not supported");
+ f2fs_info(sbi, "user_xattr options not supported");
break;
case Opt_nouser_xattr:
- f2fs_msg(sb, KERN_INFO,
- "nouser_xattr options not supported");
+ f2fs_info(sbi, "nouser_xattr options not supported");
break;
case Opt_inline_xattr:
- f2fs_msg(sb, KERN_INFO,
- "inline_xattr options not supported");
+ f2fs_info(sbi, "inline_xattr options not supported");
break;
case Opt_noinline_xattr:
- f2fs_msg(sb, KERN_INFO,
- "noinline_xattr options not supported");
+ f2fs_info(sbi, "noinline_xattr options not supported");
break;
#endif
#ifdef CONFIG_F2FS_FS_POSIX_ACL
@@ -476,10 +567,10 @@ static int parse_options(struct super_block *sb, char *options)
break;
#else
case Opt_acl:
- f2fs_msg(sb, KERN_INFO, "acl options not supported");
+ f2fs_info(sbi, "acl options not supported");
break;
case Opt_noacl:
- f2fs_msg(sb, KERN_INFO, "noacl options not supported");
+ f2fs_info(sbi, "noacl options not supported");
break;
#endif
case Opt_active_logs:
@@ -529,9 +620,8 @@ static int parse_options(struct super_block *sb, char *options)
if (args->from && match_int(args, &arg))
return -EINVAL;
if (test_opt(sbi, RESERVE_ROOT)) {
- f2fs_msg(sb, KERN_INFO,
- "Preserve previous reserve_root=%u",
- F2FS_OPTION(sbi).root_reserved_blocks);
+ f2fs_info(sbi, "Preserve previous reserve_root=%u",
+ F2FS_OPTION(sbi).root_reserved_blocks);
} else {
F2FS_OPTION(sbi).root_reserved_blocks = arg;
set_opt(sbi, RESERVE_ROOT);
@@ -542,8 +632,7 @@ static int parse_options(struct super_block *sb, char *options)
return -EINVAL;
uid = make_kuid(current_user_ns(), arg);
if (!uid_valid(uid)) {
- f2fs_msg(sb, KERN_ERR,
- "Invalid uid value %d", arg);
+ f2fs_err(sbi, "Invalid uid value %d", arg);
return -EINVAL;
}
F2FS_OPTION(sbi).s_resuid = uid;
@@ -553,8 +642,7 @@ static int parse_options(struct super_block *sb, char *options)
return -EINVAL;
gid = make_kgid(current_user_ns(), arg);
if (!gid_valid(gid)) {
- f2fs_msg(sb, KERN_ERR,
- "Invalid gid value %d", arg);
+ f2fs_err(sbi, "Invalid gid value %d", arg);
return -EINVAL;
}
F2FS_OPTION(sbi).s_resgid = gid;
@@ -564,58 +652,54 @@ static int parse_options(struct super_block *sb, char *options)
if (!name)
return -ENOMEM;
- if (strlen(name) == 8 &&
- !strncmp(name, "adaptive", 8)) {
- if (f2fs_sb_has_blkzoned(sb)) {
- f2fs_msg(sb, KERN_WARNING,
- "adaptive mode is not allowed with "
- "zoned block device feature");
- kfree(name);
+ if (!strcmp(name, "adaptive")) {
+ if (f2fs_sb_has_blkzoned(sbi)) {
+ f2fs_warn(sbi, "adaptive mode is not allowed with zoned block device feature");
+ kvfree(name);
return -EINVAL;
}
- set_opt_mode(sbi, F2FS_MOUNT_ADAPTIVE);
- } else if (strlen(name) == 3 &&
- !strncmp(name, "lfs", 3)) {
- set_opt_mode(sbi, F2FS_MOUNT_LFS);
+ F2FS_OPTION(sbi).fs_mode = FS_MODE_ADAPTIVE;
+ } else if (!strcmp(name, "lfs")) {
+ F2FS_OPTION(sbi).fs_mode = FS_MODE_LFS;
} else {
- kfree(name);
+ kvfree(name);
return -EINVAL;
}
- kfree(name);
+ kvfree(name);
break;
case Opt_io_size_bits:
if (args->from && match_int(args, &arg))
return -EINVAL;
- if (arg > __ilog2_u32(BIO_MAX_PAGES)) {
- f2fs_msg(sb, KERN_WARNING,
- "Not support %d, larger than %d",
- 1 << arg, BIO_MAX_PAGES);
+ if (arg <= 0 || arg > __ilog2_u32(BIO_MAX_PAGES)) {
+ f2fs_warn(sbi, "Not support %d, larger than %d",
+ 1 << arg, BIO_MAX_PAGES);
return -EINVAL;
}
F2FS_OPTION(sbi).write_io_size_bits = arg;
break;
+#ifdef CONFIG_F2FS_FAULT_INJECTION
case Opt_fault_injection:
if (args->from && match_int(args, &arg))
return -EINVAL;
-#ifdef CONFIG_F2FS_FAULT_INJECTION
f2fs_build_fault_attr(sbi, arg, F2FS_ALL_FAULT_TYPE);
set_opt(sbi, FAULT_INJECTION);
-#else
- f2fs_msg(sb, KERN_INFO,
- "FAULT_INJECTION was not selected");
-#endif
break;
+
case Opt_fault_type:
if (args->from && match_int(args, &arg))
return -EINVAL;
-#ifdef CONFIG_F2FS_FAULT_INJECTION
f2fs_build_fault_attr(sbi, 0, arg);
set_opt(sbi, FAULT_INJECTION);
-#else
- f2fs_msg(sb, KERN_INFO,
- "FAULT_INJECTION was not selected");
-#endif
break;
+#else
+ case Opt_fault_injection:
+ f2fs_info(sbi, "fault_injection options not supported");
+ break;
+
+ case Opt_fault_type:
+ f2fs_info(sbi, "fault_type options not supported");
+ break;
+#endif
case Opt_lazytime:
sb->s_flags |= SB_LAZYTIME;
break;
@@ -693,85 +777,155 @@ static int parse_options(struct super_block *sb, char *options)
case Opt_jqfmt_vfsv0:
case Opt_jqfmt_vfsv1:
case Opt_noquota:
- f2fs_msg(sb, KERN_INFO,
- "quota operations not supported");
+ f2fs_info(sbi, "quota operations not supported");
break;
#endif
case Opt_whint:
name = match_strdup(&args[0]);
if (!name)
return -ENOMEM;
- if (strlen(name) == 10 &&
- !strncmp(name, "user-based", 10)) {
+ if (!strcmp(name, "user-based")) {
F2FS_OPTION(sbi).whint_mode = WHINT_MODE_USER;
- } else if (strlen(name) == 3 &&
- !strncmp(name, "off", 3)) {
+ } else if (!strcmp(name, "off")) {
F2FS_OPTION(sbi).whint_mode = WHINT_MODE_OFF;
- } else if (strlen(name) == 8 &&
- !strncmp(name, "fs-based", 8)) {
+ } else if (!strcmp(name, "fs-based")) {
F2FS_OPTION(sbi).whint_mode = WHINT_MODE_FS;
} else {
- kfree(name);
+ kvfree(name);
return -EINVAL;
}
- kfree(name);
+ kvfree(name);
break;
case Opt_alloc:
name = match_strdup(&args[0]);
if (!name)
return -ENOMEM;
- if (strlen(name) == 7 &&
- !strncmp(name, "default", 7)) {
+ if (!strcmp(name, "default")) {
F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_DEFAULT;
- } else if (strlen(name) == 5 &&
- !strncmp(name, "reuse", 5)) {
+ } else if (!strcmp(name, "reuse")) {
F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_REUSE;
} else {
- kfree(name);
+ kvfree(name);
return -EINVAL;
}
- kfree(name);
+ kvfree(name);
break;
case Opt_fsync:
name = match_strdup(&args[0]);
if (!name)
return -ENOMEM;
- if (strlen(name) == 5 &&
- !strncmp(name, "posix", 5)) {
+ if (!strcmp(name, "posix")) {
F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_POSIX;
- } else if (strlen(name) == 6 &&
- !strncmp(name, "strict", 6)) {
+ } else if (!strcmp(name, "strict")) {
F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_STRICT;
- } else if (strlen(name) == 9 &&
- !strncmp(name, "nobarrier", 9)) {
+ } else if (!strcmp(name, "nobarrier")) {
F2FS_OPTION(sbi).fsync_mode =
FSYNC_MODE_NOBARRIER;
} else {
+ kvfree(name);
+ return -EINVAL;
+ }
+ kvfree(name);
+ break;
+ case Opt_test_dummy_encryption:
+ ret = f2fs_set_test_dummy_encryption(sb, p, &args[0],
+ is_remount);
+ if (ret)
+ return ret;
+ break;
+ case Opt_inlinecrypt:
+#ifdef CONFIG_FS_ENCRYPTION_INLINE_CRYPT
+ F2FS_OPTION(sbi).inlinecrypt = true;
+#else
+ f2fs_info(sbi, "inline encryption not supported");
+#endif
+ break;
+ case Opt_checkpoint_disable_cap_perc:
+ if (args->from && match_int(args, &arg))
+ return -EINVAL;
+ if (arg < 0 || arg > 100)
+ return -EINVAL;
+ F2FS_OPTION(sbi).unusable_cap_perc = arg;
+ set_opt(sbi, DISABLE_CHECKPOINT);
+ break;
+ case Opt_checkpoint_disable_cap:
+ if (args->from && match_int(args, &arg))
+ return -EINVAL;
+ F2FS_OPTION(sbi).unusable_cap = arg;
+ set_opt(sbi, DISABLE_CHECKPOINT);
+ break;
+ case Opt_checkpoint_disable:
+ set_opt(sbi, DISABLE_CHECKPOINT);
+ break;
+ case Opt_checkpoint_enable:
+ clear_opt(sbi, DISABLE_CHECKPOINT);
+ break;
+ case Opt_compress_algorithm:
+ if (!f2fs_sb_has_compression(sbi)) {
+ f2fs_err(sbi, "Compression feature if off");
+ return -EINVAL;
+ }
+ name = match_strdup(&args[0]);
+ if (!name)
+ return -ENOMEM;
+ if (!strcmp(name, "lzo")) {
+ F2FS_OPTION(sbi).compress_algorithm =
+ COMPRESS_LZO;
+ } else if (!strcmp(name, "lz4")) {
+ F2FS_OPTION(sbi).compress_algorithm =
+ COMPRESS_LZ4;
+ } else if (!strcmp(name, "zstd")) {
+ F2FS_OPTION(sbi).compress_algorithm =
+ COMPRESS_ZSTD;
+ } else {
kfree(name);
return -EINVAL;
}
kfree(name);
break;
- case Opt_test_dummy_encryption:
-#ifdef CONFIG_F2FS_FS_ENCRYPTION
- if (!f2fs_sb_has_encrypt(sb)) {
- f2fs_msg(sb, KERN_ERR, "Encrypt feature is off");
+ case Opt_compress_log_size:
+ if (!f2fs_sb_has_compression(sbi)) {
+ f2fs_err(sbi, "Compression feature is off");
+ return -EINVAL;
+ }
+ if (args->from && match_int(args, &arg))
+ return -EINVAL;
+ if (arg < MIN_COMPRESS_LOG_SIZE ||
+ arg > MAX_COMPRESS_LOG_SIZE) {
+ f2fs_err(sbi,
+ "Compress cluster log size is out of range");
+ return -EINVAL;
+ }
+ F2FS_OPTION(sbi).compress_log_size = arg;
+ break;
+ case Opt_compress_extension:
+ if (!f2fs_sb_has_compression(sbi)) {
+ f2fs_err(sbi, "Compression feature is off");
+ return -EINVAL;
+ }
+ name = match_strdup(&args[0]);
+ if (!name)
+ return -ENOMEM;
+
+ ext = F2FS_OPTION(sbi).extensions;
+ ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt;
+
+ if (strlen(name) >= F2FS_EXTENSION_LEN ||
+ ext_cnt >= COMPRESS_EXT_NUM) {
+ f2fs_err(sbi,
+ "invalid extension length/number");
+ kfree(name);
return -EINVAL;
}
- F2FS_OPTION(sbi).test_dummy_encryption = true;
- f2fs_msg(sb, KERN_INFO,
- "Test dummy encryption mode enabled");
-#else
- f2fs_msg(sb, KERN_INFO,
- "Test dummy encryption mount option ignored");
-#endif
+ strcpy(ext[ext_cnt], name);
+ F2FS_OPTION(sbi).compress_ext_cnt++;
+ kfree(name);
break;
default:
- f2fs_msg(sb, KERN_ERR,
- "Unrecognized mount option \"%s\" or missing value",
- p);
+ f2fs_err(sbi, "Unrecognized mount option \"%s\" or missing value",
+ p);
return -EINVAL;
}
}
@@ -779,54 +933,58 @@ static int parse_options(struct super_block *sb, char *options)
if (f2fs_check_quota_options(sbi))
return -EINVAL;
#else
- if (f2fs_sb_has_quota_ino(sbi->sb) && !f2fs_readonly(sbi->sb)) {
- f2fs_msg(sbi->sb, KERN_INFO,
- "Filesystem with quota feature cannot be mounted RDWR "
- "without CONFIG_QUOTA");
+ if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sbi->sb)) {
+ f2fs_info(sbi, "Filesystem with quota feature cannot be mounted RDWR without CONFIG_QUOTA");
return -EINVAL;
}
- if (f2fs_sb_has_project_quota(sbi->sb) && !f2fs_readonly(sbi->sb)) {
- f2fs_msg(sb, KERN_ERR,
- "Filesystem with project quota feature cannot be "
- "mounted RDWR without CONFIG_QUOTA");
+ if (f2fs_sb_has_project_quota(sbi) && !f2fs_readonly(sbi->sb)) {
+ f2fs_err(sbi, "Filesystem with project quota feature cannot be mounted RDWR without CONFIG_QUOTA");
+ return -EINVAL;
+ }
+#endif
+#ifndef CONFIG_UNICODE
+ if (f2fs_sb_has_casefold(sbi)) {
+ f2fs_err(sbi,
+ "Filesystem with casefold feature cannot be mounted without CONFIG_UNICODE");
return -EINVAL;
}
#endif
- if (F2FS_IO_SIZE_BITS(sbi) && !test_opt(sbi, LFS)) {
- f2fs_msg(sb, KERN_ERR,
- "Should set mode=lfs with %uKB-sized IO",
- F2FS_IO_SIZE_KB(sbi));
+ if (F2FS_IO_SIZE_BITS(sbi) && !f2fs_lfs_mode(sbi)) {
+ f2fs_err(sbi, "Should set mode=lfs with %uKB-sized IO",
+ F2FS_IO_SIZE_KB(sbi));
return -EINVAL;
}
if (test_opt(sbi, INLINE_XATTR_SIZE)) {
- if (!f2fs_sb_has_extra_attr(sb) ||
- !f2fs_sb_has_flexible_inline_xattr(sb)) {
- f2fs_msg(sb, KERN_ERR,
- "extra_attr or flexible_inline_xattr "
- "feature is off");
+ int min_size, max_size;
+
+ if (!f2fs_sb_has_extra_attr(sbi) ||
+ !f2fs_sb_has_flexible_inline_xattr(sbi)) {
+ f2fs_err(sbi, "extra_attr or flexible_inline_xattr feature is off");
return -EINVAL;
}
if (!test_opt(sbi, INLINE_XATTR)) {
- f2fs_msg(sb, KERN_ERR,
- "inline_xattr_size option should be "
- "set with inline_xattr option");
+ f2fs_err(sbi, "inline_xattr_size option should be set with inline_xattr option");
return -EINVAL;
}
- if (F2FS_OPTION(sbi).inline_xattr_size <
- sizeof(struct f2fs_xattr_header) / sizeof(__le32) ||
- F2FS_OPTION(sbi).inline_xattr_size >
- DEF_ADDRS_PER_INODE -
- F2FS_TOTAL_EXTRA_ATTR_SIZE / sizeof(__le32) -
- DEF_INLINE_RESERVED_SIZE -
- MIN_INLINE_DENTRY_SIZE / sizeof(__le32)) {
- f2fs_msg(sb, KERN_ERR,
- "inline xattr size is out of range");
+
+ min_size = sizeof(struct f2fs_xattr_header) / sizeof(__le32);
+ max_size = MAX_INLINE_XATTR_SIZE;
+
+ if (F2FS_OPTION(sbi).inline_xattr_size < min_size ||
+ F2FS_OPTION(sbi).inline_xattr_size > max_size) {
+ f2fs_err(sbi, "inline xattr size is out of range: %d ~ %d",
+ min_size, max_size);
return -EINVAL;
}
}
+ if (test_opt(sbi, DISABLE_CHECKPOINT) && f2fs_lfs_mode(sbi)) {
+ f2fs_err(sbi, "LFS not compatible with checkpoint=disable\n");
+ return -EINVAL;
+ }
+
/* Not pass down write hints if the number of active logs is lesser
* than NR_CURSEG_TYPE.
*/
@@ -848,6 +1006,7 @@ static struct inode *f2fs_alloc_inode(struct super_block *sb)
/* Initialize f2fs-specific inode info */
atomic_set(&fi->dirty_pages, 0);
init_rwsem(&fi->i_sem);
+ spin_lock_init(&fi->i_size_lock);
INIT_LIST_HEAD(&fi->dirty_list);
INIT_LIST_HEAD(&fi->gdirty_list);
INIT_LIST_HEAD(&fi->inmem_ilist);
@@ -866,7 +1025,21 @@ static struct inode *f2fs_alloc_inode(struct super_block *sb)
static int f2fs_drop_inode(struct inode *inode)
{
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
int ret;
+
+ /*
+ * during filesystem shutdown, if checkpoint is disabled,
+ * drop useless meta/node dirty pages.
+ */
+ if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
+ if (inode->i_ino == F2FS_NODE_INO(sbi) ||
+ inode->i_ino == F2FS_META_INO(sbi)) {
+ trace_f2fs_drop_inode(inode, 1);
+ return 1;
+ }
+ }
+
/*
* This is to avoid a deadlock condition like below.
* writeback_single_inode(inode)
@@ -890,6 +1063,10 @@ static int f2fs_drop_inode(struct inode *inode)
sb_start_intwrite(inode->i_sb);
f2fs_i_size_write(inode, 0);
+ f2fs_submit_merged_write_cond(F2FS_I_SB(inode),
+ inode, NULL, 0, DATA);
+ truncate_inode_pages_final(inode->i_mapping);
+
if (F2FS_HAS_BLOCKS(inode))
f2fs_truncate(inode);
@@ -902,6 +1079,8 @@ static int f2fs_drop_inode(struct inode *inode)
return 0;
}
ret = generic_drop_inode(inode);
+ if (!ret)
+ ret = fscrypt_drop_inode(inode);
trace_f2fs_drop_inode(inode, ret);
return ret;
}
@@ -971,6 +1150,9 @@ static void f2fs_dirty_inode(struct inode *inode, int flags)
static void f2fs_i_callback(struct rcu_head *head)
{
struct inode *inode = container_of(head, struct inode, i_rcu);
+
+ fscrypt_free_inode(inode);
+
kmem_cache_free(f2fs_inode_cachep, F2FS_I(inode));
}
@@ -992,10 +1174,10 @@ static void destroy_device_list(struct f2fs_sb_info *sbi)
for (i = 0; i < sbi->s_ndevs; i++) {
blkdev_put(FDEV(i).bdev, FMODE_EXCL);
#ifdef CONFIG_BLK_DEV_ZONED
- kfree(FDEV(i).blkz_type);
+ kvfree(FDEV(i).blkz_seq);
#endif
}
- kfree(sbi->devs);
+ kvfree(sbi->devs);
}
static void f2fs_put_super(struct super_block *sb)
@@ -1017,8 +1199,8 @@ static void f2fs_put_super(struct super_block *sb)
* But, the previous checkpoint was not done by umount, it needs to do
* clean checkpoint again.
*/
- if (is_sbi_flag_set(sbi, SBI_IS_DIRTY) ||
- !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) {
+ if ((is_sbi_flag_set(sbi, SBI_IS_DIRTY) ||
+ !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG))) {
struct cp_control cpc = {
.reason = CP_UMOUNT,
};
@@ -1026,7 +1208,7 @@ static void f2fs_put_super(struct super_block *sb)
}
/* be sure to wait for any on-going discard commands */
- dropped = f2fs_wait_discard_bios(sbi);
+ dropped = f2fs_issue_discard_timeout(sbi);
if ((f2fs_hw_support_discard(sbi) || f2fs_hw_should_discard(sbi)) &&
!sbi->discard_blks && !dropped) {
@@ -1048,7 +1230,7 @@ static void f2fs_put_super(struct super_block *sb)
/* our cp_error case, we can wait for any writeback page */
f2fs_flush_merged_writes(sbi);
- f2fs_wait_on_all_pages_writeback(sbi);
+ f2fs_wait_on_all_pages(sbi, F2FS_WB_CP_DATA);
f2fs_bug_on(sbi, sbi->fsync_node_num);
@@ -1068,23 +1250,30 @@ static void f2fs_put_super(struct super_block *sb)
f2fs_destroy_node_manager(sbi);
f2fs_destroy_segment_manager(sbi);
- kfree(sbi->ckpt);
+ f2fs_destroy_post_read_wq(sbi);
+
+ kvfree(sbi->ckpt);
sb->s_fs_info = NULL;
if (sbi->s_chksum_driver)
crypto_free_shash(sbi->s_chksum_driver);
- kfree(sbi->raw_super);
+ kvfree(sbi->raw_super);
destroy_device_list(sbi);
+ f2fs_destroy_xattr_caches(sbi);
mempool_destroy(sbi->write_io_dummy);
#ifdef CONFIG_QUOTA
for (i = 0; i < MAXQUOTAS; i++)
- kfree(F2FS_OPTION(sbi).s_qf_names[i]);
+ kvfree(F2FS_OPTION(sbi).s_qf_names[i]);
#endif
+ fscrypt_free_dummy_context(&F2FS_OPTION(sbi).dummy_enc_ctx);
destroy_percpu_info(sbi);
for (i = 0; i < NR_PAGE_TYPE; i++)
- kfree(sbi->write_io[i]);
- kfree(sbi);
+ kvfree(sbi->write_io[i]);
+#ifdef CONFIG_UNICODE
+ utf8_unload(sb->s_encoding);
+#endif
+ kvfree(sbi);
}
int f2fs_sync_fs(struct super_block *sb, int sync)
@@ -1094,6 +1283,8 @@ int f2fs_sync_fs(struct super_block *sb, int sync)
if (unlikely(f2fs_cp_error(sbi)))
return 0;
+ if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
+ return 0;
trace_f2fs_sync_fs(sb, sync);
@@ -1105,9 +1296,9 @@ int f2fs_sync_fs(struct super_block *sb, int sync)
cpc.reason = __get_cp_reason(sbi);
- mutex_lock(&sbi->gc_mutex);
+ down_write(&sbi->gc_lock);
err = f2fs_write_checkpoint(sbi, &cpc);
- mutex_unlock(&sbi->gc_mutex);
+ up_write(&sbi->gc_lock);
}
f2fs_trace_ios(NULL, 1);
@@ -1196,14 +1387,21 @@ static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf)
buf->f_blocks = total_count - start_count;
buf->f_bfree = user_block_count - valid_user_blocks(sbi) -
sbi->current_reserved_blocks;
+
+ spin_lock(&sbi->stat_lock);
+ if (unlikely(buf->f_bfree <= sbi->unusable_block_count))
+ buf->f_bfree = 0;
+ else
+ buf->f_bfree -= sbi->unusable_block_count;
+ spin_unlock(&sbi->stat_lock);
+
if (buf->f_bfree > F2FS_OPTION(sbi).root_reserved_blocks)
buf->f_bavail = buf->f_bfree -
F2FS_OPTION(sbi).root_reserved_blocks;
else
buf->f_bavail = 0;
- avail_node_count = sbi->total_node_count - sbi->nquota_files -
- F2FS_RESERVED_NODE_NUM;
+ avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM;
if (avail_node_count > user_block_count) {
buf->f_files = user_block_count;
@@ -1264,22 +1462,57 @@ static inline void f2fs_show_quota_options(struct seq_file *seq,
#endif
}
+static inline void f2fs_show_compress_options(struct seq_file *seq,
+ struct super_block *sb)
+{
+ struct f2fs_sb_info *sbi = F2FS_SB(sb);
+ char *algtype = "";
+ int i;
+
+ if (!f2fs_sb_has_compression(sbi))
+ return;
+
+ switch (F2FS_OPTION(sbi).compress_algorithm) {
+ case COMPRESS_LZO:
+ algtype = "lzo";
+ break;
+ case COMPRESS_LZ4:
+ algtype = "lz4";
+ break;
+ case COMPRESS_ZSTD:
+ algtype = "zstd";
+ break;
+ }
+ seq_printf(seq, ",compress_algorithm=%s", algtype);
+
+ seq_printf(seq, ",compress_log_size=%u",
+ F2FS_OPTION(sbi).compress_log_size);
+
+ for (i = 0; i < F2FS_OPTION(sbi).compress_ext_cnt; i++) {
+ seq_printf(seq, ",compress_extension=%s",
+ F2FS_OPTION(sbi).extensions[i]);
+ }
+}
+
static int f2fs_show_options(struct seq_file *seq, struct dentry *root)
{
struct f2fs_sb_info *sbi = F2FS_SB(root->d_sb);
- if (!f2fs_readonly(sbi->sb) && test_opt(sbi, BG_GC)) {
- if (test_opt(sbi, FORCE_FG_GC))
- seq_printf(seq, ",background_gc=%s", "sync");
- else
- seq_printf(seq, ",background_gc=%s", "on");
- } else {
+ if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_SYNC)
+ seq_printf(seq, ",background_gc=%s", "sync");
+ else if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_ON)
+ seq_printf(seq, ",background_gc=%s", "on");
+ else if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_OFF)
seq_printf(seq, ",background_gc=%s", "off");
- }
+
if (test_opt(sbi, DISABLE_ROLL_FORWARD))
seq_puts(seq, ",disable_roll_forward");
+ if (test_opt(sbi, NORECOVERY))
+ seq_puts(seq, ",norecovery");
if (test_opt(sbi, DISCARD))
seq_puts(seq, ",discard");
+ else
+ seq_puts(seq, ",nodiscard");
if (test_opt(sbi, NOHEAP))
seq_puts(seq, ",no_heap");
else
@@ -1327,9 +1560,9 @@ static int f2fs_show_options(struct seq_file *seq, struct dentry *root)
seq_puts(seq, ",data_flush");
seq_puts(seq, ",mode=");
- if (test_opt(sbi, ADAPTIVE))
+ if (F2FS_OPTION(sbi).fs_mode == FS_MODE_ADAPTIVE)
seq_puts(seq, "adaptive");
- else if (test_opt(sbi, LFS))
+ else if (F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS)
seq_puts(seq, "lfs");
seq_printf(seq, ",active_logs=%u", F2FS_OPTION(sbi).active_logs);
if (test_opt(sbi, RESERVE_ROOT))
@@ -1365,9 +1598,12 @@ static int f2fs_show_options(struct seq_file *seq, struct dentry *root)
seq_printf(seq, ",whint_mode=%s", "user-based");
else if (F2FS_OPTION(sbi).whint_mode == WHINT_MODE_FS)
seq_printf(seq, ",whint_mode=%s", "fs-based");
-#ifdef CONFIG_F2FS_FS_ENCRYPTION
- if (F2FS_OPTION(sbi).test_dummy_encryption)
- seq_puts(seq, ",test_dummy_encryption");
+
+ fscrypt_show_test_dummy_encryption(seq, ',', sbi->sb);
+
+#ifdef CONFIG_FS_ENCRYPTION
+ if (F2FS_OPTION(sbi).inlinecrypt)
+ seq_puts(seq, ",inlinecrypt");
#endif
if (F2FS_OPTION(sbi).alloc_mode == ALLOC_MODE_DEFAULT)
@@ -1375,12 +1611,17 @@ static int f2fs_show_options(struct seq_file *seq, struct dentry *root)
else if (F2FS_OPTION(sbi).alloc_mode == ALLOC_MODE_REUSE)
seq_printf(seq, ",alloc_mode=%s", "reuse");
+ if (test_opt(sbi, DISABLE_CHECKPOINT))
+ seq_printf(seq, ",checkpoint=disable:%u",
+ F2FS_OPTION(sbi).unusable_cap);
if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_POSIX)
seq_printf(seq, ",fsync_mode=%s", "posix");
else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT)
seq_printf(seq, ",fsync_mode=%s", "strict");
else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_NOBARRIER)
seq_printf(seq, ",fsync_mode=%s", "nobarrier");
+
+ f2fs_show_compress_options(seq, sbi->sb);
return 0;
}
@@ -1392,23 +1633,30 @@ static void default_options(struct f2fs_sb_info *sbi)
F2FS_OPTION(sbi).whint_mode = WHINT_MODE_OFF;
F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_DEFAULT;
F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_POSIX;
- F2FS_OPTION(sbi).test_dummy_encryption = false;
+#ifdef CONFIG_FS_ENCRYPTION
+ F2FS_OPTION(sbi).inlinecrypt = false;
+#endif
F2FS_OPTION(sbi).s_resuid = make_kuid(&init_user_ns, F2FS_DEF_RESUID);
F2FS_OPTION(sbi).s_resgid = make_kgid(&init_user_ns, F2FS_DEF_RESGID);
+ F2FS_OPTION(sbi).compress_algorithm = COMPRESS_LZ4;
+ F2FS_OPTION(sbi).compress_log_size = MIN_COMPRESS_LOG_SIZE;
+ F2FS_OPTION(sbi).compress_ext_cnt = 0;
+ F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_ON;
- set_opt(sbi, BG_GC);
set_opt(sbi, INLINE_XATTR);
set_opt(sbi, INLINE_DATA);
set_opt(sbi, INLINE_DENTRY);
set_opt(sbi, EXTENT_CACHE);
set_opt(sbi, NOHEAP);
+ clear_opt(sbi, DISABLE_CHECKPOINT);
+ F2FS_OPTION(sbi).unusable_cap = 0;
sbi->sb->s_flags |= SB_LAZYTIME;
set_opt(sbi, FLUSH_MERGE);
set_opt(sbi, DISCARD);
- if (f2fs_sb_has_blkzoned(sbi->sb))
- set_opt_mode(sbi, F2FS_MOUNT_LFS);
+ if (f2fs_sb_has_blkzoned(sbi))
+ F2FS_OPTION(sbi).fs_mode = FS_MODE_LFS;
else
- set_opt_mode(sbi, F2FS_MOUNT_ADAPTIVE);
+ F2FS_OPTION(sbi).fs_mode = FS_MODE_ADAPTIVE;
#ifdef CONFIG_F2FS_FS_XATTR
set_opt(sbi, XATTR_USER);
@@ -1423,6 +1671,79 @@ static void default_options(struct f2fs_sb_info *sbi)
#ifdef CONFIG_QUOTA
static int f2fs_enable_quotas(struct super_block *sb);
#endif
+
+static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi)
+{
+ unsigned int s_flags = sbi->sb->s_flags;
+ struct cp_control cpc;
+ int err = 0;
+ int ret;
+ block_t unusable;
+
+ if (s_flags & SB_RDONLY) {
+ f2fs_err(sbi, "checkpoint=disable on readonly fs");
+ return -EINVAL;
+ }
+ sbi->sb->s_flags |= SB_ACTIVE;
+
+ f2fs_update_time(sbi, DISABLE_TIME);
+
+ while (!f2fs_time_over(sbi, DISABLE_TIME)) {
+ down_write(&sbi->gc_lock);
+ err = f2fs_gc(sbi, true, false, NULL_SEGNO);
+ if (err == -ENODATA) {
+ err = 0;
+ break;
+ }
+ if (err && err != -EAGAIN)
+ break;
+ }
+
+ ret = sync_filesystem(sbi->sb);
+ if (ret || err) {
+ err = ret ? ret: err;
+ goto restore_flag;
+ }
+
+ unusable = f2fs_get_unusable_blocks(sbi);
+ if (f2fs_disable_cp_again(sbi, unusable)) {
+ err = -EAGAIN;
+ goto restore_flag;
+ }
+
+ down_write(&sbi->gc_lock);
+ cpc.reason = CP_PAUSE;
+ set_sbi_flag(sbi, SBI_CP_DISABLED);
+ err = f2fs_write_checkpoint(sbi, &cpc);
+ if (err)
+ goto out_unlock;
+
+ spin_lock(&sbi->stat_lock);
+ sbi->unusable_block_count = unusable;
+ spin_unlock(&sbi->stat_lock);
+
+out_unlock:
+ up_write(&sbi->gc_lock);
+restore_flag:
+ sbi->sb->s_flags = s_flags; /* Restore SB_RDONLY status */
+ return err;
+}
+
+static void f2fs_enable_checkpoint(struct f2fs_sb_info *sbi)
+{
+ /* we should flush all the data to keep data consistency */
+ sync_inodes_sb(sbi->sb);
+
+ down_write(&sbi->gc_lock);
+ f2fs_dirty_to_prefree(sbi);
+
+ clear_sbi_flag(sbi, SBI_CP_DISABLED);
+ set_sbi_flag(sbi, SBI_IS_DIRTY);
+ up_write(&sbi->gc_lock);
+
+ f2fs_sync_fs(sbi->sb, 1);
+}
+
static int f2fs_remount(struct super_block *sb, int *flags, char *data)
{
struct f2fs_sb_info *sbi = F2FS_SB(sb);
@@ -1432,6 +1753,9 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
bool need_restart_gc = false;
bool need_stop_gc = false;
bool no_extent_cache = !test_opt(sbi, EXTENT_CACHE);
+ bool disable_checkpoint = test_opt(sbi, DISABLE_CHECKPOINT);
+ bool no_io_align = !F2FS_IO_ALIGNED(sbi);
+ bool checkpoint_changed;
#ifdef CONFIG_QUOTA
int i, j;
#endif
@@ -1452,7 +1776,7 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
GFP_KERNEL);
if (!org_mount_opt.s_qf_names[i]) {
for (j = 0; j < i; j++)
- kfree(org_mount_opt.s_qf_names[j]);
+ kvfree(org_mount_opt.s_qf_names[j]);
return -ENOMEM;
}
} else {
@@ -1464,8 +1788,8 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
/* recover superblocks we couldn't write due to previous RO mount */
if (!(*flags & SB_RDONLY) && is_sbi_flag_set(sbi, SBI_NEED_SB_WRITE)) {
err = f2fs_commit_super(sbi, false);
- f2fs_msg(sb, KERN_INFO,
- "Try to recover all the superblocks, ret: %d", err);
+ f2fs_info(sbi, "Try to recover all the superblocks, ret: %d",
+ err);
if (!err)
clear_sbi_flag(sbi, SBI_NEED_SB_WRITE);
}
@@ -1473,9 +1797,11 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
default_options(sbi);
/* parse mount options */
- err = parse_options(sb, data);
+ err = parse_options(sb, data, true);
if (err)
goto restore_opts;
+ checkpoint_changed =
+ disable_checkpoint != test_opt(sbi, DISABLE_CHECKPOINT);
/*
* Previous and new state of filesystem is RO,
@@ -1489,12 +1815,12 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
err = dquot_suspend(sb, -1);
if (err < 0)
goto restore_opts;
- } else if (f2fs_readonly(sb) && !(*flags & MS_RDONLY)) {
+ } else if (f2fs_readonly(sb) && !(*flags & SB_RDONLY)) {
/* dquot_resume needs RW */
sb->s_flags &= ~SB_RDONLY;
if (sb_any_quota_suspended(sb)) {
dquot_resume(sb, -1);
- } else if (f2fs_sb_has_quota_ino(sb)) {
+ } else if (f2fs_sb_has_quota_ino(sbi)) {
err = f2fs_enable_quotas(sb);
if (err)
goto restore_opts;
@@ -1504,8 +1830,19 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
/* disallow enable/disable extent_cache dynamically */
if (no_extent_cache == !!test_opt(sbi, EXTENT_CACHE)) {
err = -EINVAL;
- f2fs_msg(sbi->sb, KERN_WARNING,
- "switch extent_cache option is not allowed");
+ f2fs_warn(sbi, "switch extent_cache option is not allowed");
+ goto restore_opts;
+ }
+
+ if (no_io_align == !!F2FS_IO_ALIGNED(sbi)) {
+ err = -EINVAL;
+ f2fs_warn(sbi, "switch io_bits option is not allowed");
+ goto restore_opts;
+ }
+
+ if ((*flags & SB_RDONLY) && test_opt(sbi, DISABLE_CHECKPOINT)) {
+ err = -EINVAL;
+ f2fs_warn(sbi, "disabling checkpoint not compatible with read-only");
goto restore_opts;
}
@@ -1514,7 +1851,8 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
* or if background_gc = off is passed in mount
* option. Also sync the filesystem.
*/
- if ((*flags & SB_RDONLY) || !test_opt(sbi, BG_GC)) {
+ if ((*flags & SB_RDONLY) ||
+ F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_OFF) {
if (sbi->gc_thread) {
f2fs_stop_gc_thread(sbi);
need_restart_gc = true;
@@ -1537,6 +1875,16 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
clear_sbi_flag(sbi, SBI_IS_CLOSE);
}
+ if (checkpoint_changed) {
+ if (test_opt(sbi, DISABLE_CHECKPOINT)) {
+ err = f2fs_disable_checkpoint(sbi);
+ if (err)
+ goto restore_gc;
+ } else {
+ f2fs_enable_checkpoint(sbi);
+ }
+ }
+
/*
* We stop issue flush thread if FS is mounted as RO
* or if flush_merge is not passed in mount option.
@@ -1553,20 +1901,20 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
#ifdef CONFIG_QUOTA
/* Release old quota file names */
for (i = 0; i < MAXQUOTAS; i++)
- kfree(org_mount_opt.s_qf_names[i]);
+ kvfree(org_mount_opt.s_qf_names[i]);
#endif
/* Update the POSIXACL Flag */
sb->s_flags = (sb->s_flags & ~SB_POSIXACL) |
(test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0);
limit_reserve_root(sbi);
+ adjust_unusable_cap_perc(sbi);
*flags = (*flags & ~SB_LAZYTIME) | (sb->s_flags & SB_LAZYTIME);
return 0;
restore_gc:
if (need_restart_gc) {
if (f2fs_start_gc_thread(sbi))
- f2fs_msg(sbi->sb, KERN_WARNING,
- "background gc thread has stopped");
+ f2fs_warn(sbi, "background gc thread has stopped");
} else if (need_stop_gc) {
f2fs_stop_gc_thread(sbi);
}
@@ -1574,7 +1922,7 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
#ifdef CONFIG_QUOTA
F2FS_OPTION(sbi).s_jquota_fmt = org_mount_opt.s_jquota_fmt;
for (i = 0; i < MAXQUOTAS; i++) {
- kfree(F2FS_OPTION(sbi).s_qf_names[i]);
+ kvfree(F2FS_OPTION(sbi).s_qf_names[i]);
F2FS_OPTION(sbi).s_qf_names[i] = org_mount_opt.s_qf_names[i];
}
#endif
@@ -1610,9 +1958,11 @@ static ssize_t f2fs_quota_read(struct super_block *sb, int type, char *data,
page = read_cache_page_gfp(mapping, blkidx, GFP_NOFS);
if (IS_ERR(page)) {
if (PTR_ERR(page) == -ENOMEM) {
- congestion_wait(BLK_RW_ASYNC, HZ/50);
+ congestion_wait(BLK_RW_ASYNC,
+ DEFAULT_IO_TIMEOUT);
goto repeat;
}
+ set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
return PTR_ERR(page);
}
@@ -1624,6 +1974,7 @@ static ssize_t f2fs_quota_read(struct super_block *sb, int type, char *data,
}
if (unlikely(!PageUptodate(page))) {
f2fs_put_page(page, 1);
+ set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
return -EIO;
}
@@ -1663,9 +2014,11 @@ static ssize_t f2fs_quota_write(struct super_block *sb, int type,
&page, &fsdata);
if (unlikely(err)) {
if (err == -ENOMEM) {
- congestion_wait(BLK_RW_ASYNC, HZ/50);
+ congestion_wait(BLK_RW_ASYNC,
+ DEFAULT_IO_TIMEOUT);
goto retry;
}
+ set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
break;
}
@@ -1702,6 +2055,11 @@ static qsize_t *f2fs_get_reserved_space(struct inode *inode)
static int f2fs_quota_on_mount(struct f2fs_sb_info *sbi, int type)
{
+ if (is_set_ckpt_flags(sbi, CP_QUOTA_NEED_FSCK_FLAG)) {
+ f2fs_err(sbi, "quota sysfile may be corrupted, skip loading it");
+ return 0;
+ }
+
return dquot_quota_on_mount(sbi->sb, F2FS_OPTION(sbi).s_qf_names[type],
F2FS_OPTION(sbi).s_jquota_fmt, type);
}
@@ -1711,11 +2069,10 @@ int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly)
int enabled = 0;
int i, err;
- if (f2fs_sb_has_quota_ino(sbi->sb) && rdonly) {
+ if (f2fs_sb_has_quota_ino(sbi) && rdonly) {
err = f2fs_enable_quotas(sbi->sb);
if (err) {
- f2fs_msg(sbi->sb, KERN_ERR,
- "Cannot turn on quota_ino: %d", err);
+ f2fs_err(sbi, "Cannot turn on quota_ino: %d", err);
return 0;
}
return 1;
@@ -1728,8 +2085,8 @@ int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly)
enabled = 1;
continue;
}
- f2fs_msg(sbi->sb, KERN_ERR,
- "Cannot turn on quotas: %d on %d", err, i);
+ f2fs_err(sbi, "Cannot turn on quotas: %d on %d",
+ err, i);
}
}
return enabled;
@@ -1742,7 +2099,7 @@ static int f2fs_quota_enable(struct super_block *sb, int type, int format_id,
unsigned long qf_inum;
int err;
- BUG_ON(!f2fs_sb_has_quota_ino(sb));
+ BUG_ON(!f2fs_sb_has_quota_ino(F2FS_SB(sb)));
qf_inum = f2fs_qf_ino(sb, type);
if (!qf_inum)
@@ -1750,8 +2107,7 @@ static int f2fs_quota_enable(struct super_block *sb, int type, int format_id,
qf_inode = f2fs_iget(sb, qf_inum);
if (IS_ERR(qf_inode)) {
- f2fs_msg(sb, KERN_ERR,
- "Bad quota inode %u:%lu", type, qf_inum);
+ f2fs_err(F2FS_SB(sb), "Bad quota inode %u:%lu", type, qf_inum);
return PTR_ERR(qf_inode);
}
@@ -1764,15 +2120,22 @@ static int f2fs_quota_enable(struct super_block *sb, int type, int format_id,
static int f2fs_enable_quotas(struct super_block *sb)
{
+ struct f2fs_sb_info *sbi = F2FS_SB(sb);
int type, err = 0;
unsigned long qf_inum;
bool quota_mopt[MAXQUOTAS] = {
- test_opt(F2FS_SB(sb), USRQUOTA),
- test_opt(F2FS_SB(sb), GRPQUOTA),
- test_opt(F2FS_SB(sb), PRJQUOTA),
+ test_opt(sbi, USRQUOTA),
+ test_opt(sbi, GRPQUOTA),
+ test_opt(sbi, PRJQUOTA),
};
- sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NOLIST_DIRTY;
+ if (is_set_ckpt_flags(F2FS_SB(sb), CP_QUOTA_NEED_FSCK_FLAG)) {
+ f2fs_err(sbi, "quota file may be corrupted, skip loading it");
+ return 0;
+ }
+
+ sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE;
+
for (type = 0; type < MAXQUOTAS; type++) {
qf_inum = f2fs_qf_ino(sb, type);
if (qf_inum) {
@@ -1780,12 +2143,12 @@ static int f2fs_enable_quotas(struct super_block *sb)
DQUOT_USAGE_ENABLED |
(quota_mopt[type] ? DQUOT_LIMITS_ENABLED : 0));
if (err) {
- f2fs_msg(sb, KERN_ERR,
- "Failed to enable quota tracking "
- "(type=%d, err=%d). Please run "
- "fsck to fix.", type, err);
+ f2fs_err(sbi, "Failed to enable quota tracking (type=%d, err=%d). Please run fsck to fix.",
+ type, err);
for (type--; type >= 0; type--)
dquot_quota_off(sb, type);
+ set_sbi_flag(F2FS_SB(sb),
+ SBI_QUOTA_NEED_REPAIR);
return err;
}
}
@@ -1793,35 +2156,65 @@ static int f2fs_enable_quotas(struct super_block *sb)
return 0;
}
-static int f2fs_quota_sync(struct super_block *sb, int type)
+int f2fs_quota_sync(struct super_block *sb, int type)
{
+ struct f2fs_sb_info *sbi = F2FS_SB(sb);
struct quota_info *dqopt = sb_dqopt(sb);
int cnt;
int ret;
+ /*
+ * do_quotactl
+ * f2fs_quota_sync
+ * down_read(quota_sem)
+ * dquot_writeback_dquots()
+ * f2fs_dquot_commit
+ * block_operation
+ * down_read(quota_sem)
+ */
+ f2fs_lock_op(sbi);
+
+ down_read(&sbi->quota_sem);
ret = dquot_writeback_dquots(sb, type);
if (ret)
- return ret;
+ goto out;
/*
* Now when everything is written we can discard the pagecache so
* that userspace sees the changes.
*/
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
+ struct address_space *mapping;
+
if (type != -1 && cnt != type)
continue;
if (!sb_has_quota_active(sb, cnt))
continue;
- ret = filemap_write_and_wait(dqopt->files[cnt]->i_mapping);
+ mapping = dqopt->files[cnt]->i_mapping;
+
+ ret = filemap_fdatawrite(mapping);
if (ret)
- return ret;
+ goto out;
+
+ /* if we are using journalled quota */
+ if (is_journalled_quota(sbi))
+ continue;
+
+ ret = filemap_fdatawait(mapping);
+ if (ret)
+ set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
inode_lock(dqopt->files[cnt]);
truncate_inode_pages(&dqopt->files[cnt]->i_data, 0);
inode_unlock(dqopt->files[cnt]);
}
- return 0;
+out:
+ if (ret)
+ set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
+ up_read(&sbi->quota_sem);
+ f2fs_unlock_op(sbi);
+ return ret;
}
static int f2fs_quota_on(struct super_block *sb, int type, int format_id,
@@ -1830,6 +2223,12 @@ static int f2fs_quota_on(struct super_block *sb, int type, int format_id,
struct inode *inode;
int err;
+ /* if quota sysfile exists, deny enabling quota with specific file */
+ if (f2fs_sb_has_quota_ino(F2FS_SB(sb))) {
+ f2fs_err(F2FS_SB(sb), "quota sysfile already exists");
+ return -EBUSY;
+ }
+
err = f2fs_quota_sync(sb, type);
if (err)
return err;
@@ -1849,7 +2248,7 @@ static int f2fs_quota_on(struct super_block *sb, int type, int format_id,
return 0;
}
-static int f2fs_quota_off(struct super_block *sb, int type)
+static int __f2fs_quota_off(struct super_block *sb, int type)
{
struct inode *inode = sb_dqopt(sb)->files[type];
int err;
@@ -1862,7 +2261,7 @@ static int f2fs_quota_off(struct super_block *sb, int type)
goto out_put;
err = dquot_quota_off(sb, type);
- if (err || f2fs_sb_has_quota_ino(sb))
+ if (err || f2fs_sb_has_quota_ino(F2FS_SB(sb)))
goto out_put;
inode_lock(inode);
@@ -1875,21 +2274,36 @@ static int f2fs_quota_off(struct super_block *sb, int type)
return err;
}
+static int f2fs_quota_off(struct super_block *sb, int type)
+{
+ struct f2fs_sb_info *sbi = F2FS_SB(sb);
+ int err;
+
+ err = __f2fs_quota_off(sb, type);
+
+ /*
+ * quotactl can shutdown journalled quota, result in inconsistence
+ * between quota record and fs data by following updates, tag the
+ * flag to let fsck be aware of it.
+ */
+ if (is_journalled_quota(sbi))
+ set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
+ return err;
+}
+
void f2fs_quota_off_umount(struct super_block *sb)
{
int type;
int err;
for (type = 0; type < MAXQUOTAS; type++) {
- err = f2fs_quota_off(sb, type);
+ err = __f2fs_quota_off(sb, type);
if (err) {
int ret = dquot_quota_off(sb, type);
- f2fs_msg(sb, KERN_ERR,
- "Fail to turn off disk quota "
- "(type: %d, err: %d, ret:%d), Please "
- "run fsck to fix it.", type, err, ret);
- set_sbi_flag(F2FS_SB(sb), SBI_NEED_FSCK);
+ f2fs_err(F2FS_SB(sb), "Fail to turn off disk quota (type: %d, err: %d, ret:%d), Please run fsck to fix it.",
+ type, err, ret);
+ set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
}
}
/*
@@ -1912,6 +2326,64 @@ static void f2fs_truncate_quota_inode_pages(struct super_block *sb)
}
}
+static int f2fs_dquot_commit(struct dquot *dquot)
+{
+ struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
+ int ret;
+
+ down_read_nested(&sbi->quota_sem, SINGLE_DEPTH_NESTING);
+ ret = dquot_commit(dquot);
+ if (ret < 0)
+ set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
+ up_read(&sbi->quota_sem);
+ return ret;
+}
+
+static int f2fs_dquot_acquire(struct dquot *dquot)
+{
+ struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
+ int ret;
+
+ down_read(&sbi->quota_sem);
+ ret = dquot_acquire(dquot);
+ if (ret < 0)
+ set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
+ up_read(&sbi->quota_sem);
+ return ret;
+}
+
+static int f2fs_dquot_release(struct dquot *dquot)
+{
+ struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
+ int ret = dquot_release(dquot);
+
+ if (ret < 0)
+ set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
+ return ret;
+}
+
+static int f2fs_dquot_mark_dquot_dirty(struct dquot *dquot)
+{
+ struct super_block *sb = dquot->dq_sb;
+ struct f2fs_sb_info *sbi = F2FS_SB(sb);
+ int ret = dquot_mark_dquot_dirty(dquot);
+
+ /* if we are using journalled quota */
+ if (is_journalled_quota(sbi))
+ set_sbi_flag(sbi, SBI_QUOTA_NEED_FLUSH);
+
+ return ret;
+}
+
+static int f2fs_dquot_commit_info(struct super_block *sb, int type)
+{
+ struct f2fs_sb_info *sbi = F2FS_SB(sb);
+ int ret = dquot_commit_info(sb, type);
+
+ if (ret < 0)
+ set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
+ return ret;
+}
static int f2fs_get_projid(struct inode *inode, kprojid_t *projid)
{
@@ -1921,11 +2393,11 @@ static int f2fs_get_projid(struct inode *inode, kprojid_t *projid)
static const struct dquot_operations f2fs_quota_operations = {
.get_reserved_space = f2fs_get_reserved_space,
- .write_dquot = dquot_commit,
- .acquire_dquot = dquot_acquire,
- .release_dquot = dquot_release,
- .mark_dirty = dquot_mark_dquot_dirty,
- .write_info = dquot_commit_info,
+ .write_dquot = f2fs_dquot_commit,
+ .acquire_dquot = f2fs_dquot_acquire,
+ .release_dquot = f2fs_dquot_release,
+ .mark_dirty = f2fs_dquot_mark_dquot_dirty,
+ .write_info = f2fs_dquot_commit_info,
.alloc_dquot = dquot_alloc,
.destroy_dquot = dquot_destroy,
.get_projid = f2fs_get_projid,
@@ -1943,6 +2415,11 @@ static const struct quotactl_ops f2fs_quotactl_ops = {
.get_nextdqblk = dquot_get_next_dqblk,
};
#else
+int f2fs_quota_sync(struct super_block *sb, int type)
+{
+ return 0;
+}
+
void f2fs_quota_off_umount(struct super_block *sb)
{
}
@@ -1969,7 +2446,7 @@ static const struct super_operations f2fs_sops = {
.remount_fs = f2fs_remount,
};
-#ifdef CONFIG_F2FS_FS_ENCRYPTION
+#ifdef CONFIG_FS_ENCRYPTION
static int f2fs_get_context(struct inode *inode, void *ctx, size_t len)
{
return f2fs_getxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION,
@@ -1988,7 +2465,7 @@ static int f2fs_set_context(struct inode *inode, const void *ctx, size_t len,
* if LOST_FOUND feature is enabled.
*
*/
- if (f2fs_sb_has_lost_found(sbi->sb) &&
+ if (f2fs_sb_has_lost_found(sbi) &&
inode->i_ino == F2FS_ROOT_INO(sbi))
return -EPERM;
@@ -1997,18 +2474,60 @@ static int f2fs_set_context(struct inode *inode, const void *ctx, size_t len,
ctx, len, fs_data, XATTR_CREATE);
}
-static bool f2fs_dummy_context(struct inode *inode)
+static const union fscrypt_context *
+f2fs_get_dummy_context(struct super_block *sb)
{
- return DUMMY_ENCRYPTION_ENABLED(F2FS_I_SB(inode));
+ return F2FS_OPTION(F2FS_SB(sb)).dummy_enc_ctx.ctx;
+}
+
+static bool f2fs_has_stable_inodes(struct super_block *sb)
+{
+ return true;
+}
+
+static void f2fs_get_ino_and_lblk_bits(struct super_block *sb,
+ int *ino_bits_ret, int *lblk_bits_ret)
+{
+ *ino_bits_ret = 8 * sizeof(nid_t);
+ *lblk_bits_ret = 8 * sizeof(block_t);
+}
+
+static bool f2fs_inline_crypt_enabled(struct super_block *sb)
+{
+ return F2FS_OPTION(F2FS_SB(sb)).inlinecrypt;
+}
+
+static int f2fs_get_num_devices(struct super_block *sb)
+{
+ struct f2fs_sb_info *sbi = F2FS_SB(sb);
+
+ if (f2fs_is_multi_device(sbi))
+ return sbi->s_ndevs;
+ return 1;
+}
+
+static void f2fs_get_devices(struct super_block *sb,
+ struct request_queue **devs)
+{
+ struct f2fs_sb_info *sbi = F2FS_SB(sb);
+ int i;
+
+ for (i = 0; i < sbi->s_ndevs; i++)
+ devs[i] = bdev_get_queue(FDEV(i).bdev);
}
static const struct fscrypt_operations f2fs_cryptops = {
- .key_prefix = "f2fs:",
- .get_context = f2fs_get_context,
- .set_context = f2fs_set_context,
- .dummy_context = f2fs_dummy_context,
- .empty_dir = f2fs_empty_dir,
- .max_namelen = F2FS_NAME_LEN,
+ .key_prefix = "f2fs:",
+ .get_context = f2fs_get_context,
+ .set_context = f2fs_set_context,
+ .get_dummy_context = f2fs_get_dummy_context,
+ .empty_dir = f2fs_empty_dir,
+ .max_namelen = F2FS_NAME_LEN,
+ .has_stable_inodes = f2fs_has_stable_inodes,
+ .get_ino_and_lblk_bits = f2fs_get_ino_and_lblk_bits,
+ .inline_crypt_enabled = f2fs_inline_crypt_enabled,
+ .get_num_devices = f2fs_get_num_devices,
+ .get_devices = f2fs_get_devices,
};
#endif
@@ -2060,7 +2579,7 @@ static const struct export_operations f2fs_export_ops = {
static loff_t max_file_blocks(void)
{
loff_t result = 0;
- loff_t leaf_count = ADDRS_PER_BLOCK;
+ loff_t leaf_count = DEF_ADDRS_PER_BLOCK;
/*
* note: previously, result is equal to (DEF_ADDRS_PER_INODE -
@@ -2121,55 +2640,49 @@ static inline bool sanity_check_area_boundary(struct f2fs_sb_info *sbi,
(segment_count << log_blocks_per_seg);
if (segment0_blkaddr != cp_blkaddr) {
- f2fs_msg(sb, KERN_INFO,
- "Mismatch start address, segment0(%u) cp_blkaddr(%u)",
- segment0_blkaddr, cp_blkaddr);
+ f2fs_info(sbi, "Mismatch start address, segment0(%u) cp_blkaddr(%u)",
+ segment0_blkaddr, cp_blkaddr);
return true;
}
if (cp_blkaddr + (segment_count_ckpt << log_blocks_per_seg) !=
sit_blkaddr) {
- f2fs_msg(sb, KERN_INFO,
- "Wrong CP boundary, start(%u) end(%u) blocks(%u)",
- cp_blkaddr, sit_blkaddr,
- segment_count_ckpt << log_blocks_per_seg);
+ f2fs_info(sbi, "Wrong CP boundary, start(%u) end(%u) blocks(%u)",
+ cp_blkaddr, sit_blkaddr,
+ segment_count_ckpt << log_blocks_per_seg);
return true;
}
if (sit_blkaddr + (segment_count_sit << log_blocks_per_seg) !=
nat_blkaddr) {
- f2fs_msg(sb, KERN_INFO,
- "Wrong SIT boundary, start(%u) end(%u) blocks(%u)",
- sit_blkaddr, nat_blkaddr,
- segment_count_sit << log_blocks_per_seg);
+ f2fs_info(sbi, "Wrong SIT boundary, start(%u) end(%u) blocks(%u)",
+ sit_blkaddr, nat_blkaddr,
+ segment_count_sit << log_blocks_per_seg);
return true;
}
if (nat_blkaddr + (segment_count_nat << log_blocks_per_seg) !=
ssa_blkaddr) {
- f2fs_msg(sb, KERN_INFO,
- "Wrong NAT boundary, start(%u) end(%u) blocks(%u)",
- nat_blkaddr, ssa_blkaddr,
- segment_count_nat << log_blocks_per_seg);
+ f2fs_info(sbi, "Wrong NAT boundary, start(%u) end(%u) blocks(%u)",
+ nat_blkaddr, ssa_blkaddr,
+ segment_count_nat << log_blocks_per_seg);
return true;
}
if (ssa_blkaddr + (segment_count_ssa << log_blocks_per_seg) !=
main_blkaddr) {
- f2fs_msg(sb, KERN_INFO,
- "Wrong SSA boundary, start(%u) end(%u) blocks(%u)",
- ssa_blkaddr, main_blkaddr,
- segment_count_ssa << log_blocks_per_seg);
+ f2fs_info(sbi, "Wrong SSA boundary, start(%u) end(%u) blocks(%u)",
+ ssa_blkaddr, main_blkaddr,
+ segment_count_ssa << log_blocks_per_seg);
return true;
}
if (main_end_blkaddr > seg_end_blkaddr) {
- f2fs_msg(sb, KERN_INFO,
- "Wrong MAIN_AREA boundary, start(%u) end(%u) block(%u)",
- main_blkaddr,
- segment0_blkaddr +
- (segment_count << log_blocks_per_seg),
- segment_count_main << log_blocks_per_seg);
+ f2fs_info(sbi, "Wrong MAIN_AREA boundary, start(%u) end(%u) block(%u)",
+ main_blkaddr,
+ segment0_blkaddr +
+ (segment_count << log_blocks_per_seg),
+ segment_count_main << log_blocks_per_seg);
return true;
} else if (main_end_blkaddr < seg_end_blkaddr) {
int err = 0;
@@ -2186,12 +2699,11 @@ static inline bool sanity_check_area_boundary(struct f2fs_sb_info *sbi,
err = __f2fs_commit_super(bh, NULL);
res = err ? "failed" : "done";
}
- f2fs_msg(sb, KERN_INFO,
- "Fix alignment : %s, start(%u) end(%u) block(%u)",
- res, main_blkaddr,
- segment0_blkaddr +
- (segment_count << log_blocks_per_seg),
- segment_count_main << log_blocks_per_seg);
+ f2fs_info(sbi, "Fix alignment : %s, start(%u) end(%u) block(%u)",
+ res, main_blkaddr,
+ segment0_blkaddr +
+ (segment_count << log_blocks_per_seg),
+ segment_count_main << log_blocks_per_seg);
if (err)
return true;
}
@@ -2205,38 +2717,51 @@ static int sanity_check_raw_super(struct f2fs_sb_info *sbi,
block_t total_sections, blocks_per_seg;
struct f2fs_super_block *raw_super = (struct f2fs_super_block *)
(bh->b_data + F2FS_SUPER_OFFSET);
- struct super_block *sb = sbi->sb;
unsigned int blocksize;
+ size_t crc_offset = 0;
+ __u32 crc = 0;
if (le32_to_cpu(raw_super->magic) != F2FS_SUPER_MAGIC) {
- f2fs_msg(sb, KERN_INFO,
- "Magic Mismatch, valid(0x%x) - read(0x%x)",
- F2FS_SUPER_MAGIC, le32_to_cpu(raw_super->magic));
+ f2fs_info(sbi, "Magic Mismatch, valid(0x%x) - read(0x%x)",
+ F2FS_SUPER_MAGIC, le32_to_cpu(raw_super->magic));
return -EINVAL;
}
+ /* Check checksum_offset and crc in superblock */
+ if (__F2FS_HAS_FEATURE(raw_super, F2FS_FEATURE_SB_CHKSUM)) {
+ crc_offset = le32_to_cpu(raw_super->checksum_offset);
+ if (crc_offset !=
+ offsetof(struct f2fs_super_block, crc)) {
+ f2fs_info(sbi, "Invalid SB checksum offset: %zu",
+ crc_offset);
+ return -EFSCORRUPTED;
+ }
+ crc = le32_to_cpu(raw_super->crc);
+ if (!f2fs_crc_valid(sbi, crc, raw_super, crc_offset)) {
+ f2fs_info(sbi, "Invalid SB checksum value: %u", crc);
+ return -EFSCORRUPTED;
+ }
+ }
+
/* Currently, support only 4KB page cache size */
if (F2FS_BLKSIZE != PAGE_SIZE) {
- f2fs_msg(sb, KERN_INFO,
- "Invalid page_cache_size (%lu), supports only 4KB\n",
- PAGE_SIZE);
+ f2fs_info(sbi, "Invalid page_cache_size (%lu), supports only 4KB",
+ PAGE_SIZE);
return -EFSCORRUPTED;
}
/* Currently, support only 4KB block size */
blocksize = 1 << le32_to_cpu(raw_super->log_blocksize);
if (blocksize != F2FS_BLKSIZE) {
- f2fs_msg(sb, KERN_INFO,
- "Invalid blocksize (%u), supports only 4KB\n",
- blocksize);
+ f2fs_info(sbi, "Invalid blocksize (%u), supports only 4KB",
+ blocksize);
return -EFSCORRUPTED;
}
/* check log blocks per segment */
if (le32_to_cpu(raw_super->log_blocks_per_seg) != 9) {
- f2fs_msg(sb, KERN_INFO,
- "Invalid log blocks per segment (%u)\n",
- le32_to_cpu(raw_super->log_blocks_per_seg));
+ f2fs_info(sbi, "Invalid log blocks per segment (%u)",
+ le32_to_cpu(raw_super->log_blocks_per_seg));
return -EFSCORRUPTED;
}
@@ -2245,17 +2770,16 @@ static int sanity_check_raw_super(struct f2fs_sb_info *sbi,
F2FS_MAX_LOG_SECTOR_SIZE ||
le32_to_cpu(raw_super->log_sectorsize) <
F2FS_MIN_LOG_SECTOR_SIZE) {
- f2fs_msg(sb, KERN_INFO, "Invalid log sectorsize (%u)",
- le32_to_cpu(raw_super->log_sectorsize));
+ f2fs_info(sbi, "Invalid log sectorsize (%u)",
+ le32_to_cpu(raw_super->log_sectorsize));
return -EFSCORRUPTED;
}
if (le32_to_cpu(raw_super->log_sectors_per_block) +
le32_to_cpu(raw_super->log_sectorsize) !=
F2FS_MAX_LOG_SECTOR_SIZE) {
- f2fs_msg(sb, KERN_INFO,
- "Invalid log sectors per block(%u) log sectorsize(%u)",
- le32_to_cpu(raw_super->log_sectors_per_block),
- le32_to_cpu(raw_super->log_sectorsize));
+ f2fs_info(sbi, "Invalid log sectors per block(%u) log sectorsize(%u)",
+ le32_to_cpu(raw_super->log_sectors_per_block),
+ le32_to_cpu(raw_super->log_sectorsize));
return -EFSCORRUPTED;
}
@@ -2269,59 +2793,66 @@ static int sanity_check_raw_super(struct f2fs_sb_info *sbi,
if (segment_count > F2FS_MAX_SEGMENT ||
segment_count < F2FS_MIN_SEGMENTS) {
- f2fs_msg(sb, KERN_INFO,
- "Invalid segment count (%u)",
- segment_count);
+ f2fs_info(sbi, "Invalid segment count (%u)", segment_count);
return -EFSCORRUPTED;
}
if (total_sections > segment_count ||
total_sections < F2FS_MIN_SEGMENTS ||
segs_per_sec > segment_count || !segs_per_sec) {
- f2fs_msg(sb, KERN_INFO,
- "Invalid segment/section count (%u, %u x %u)",
- segment_count, total_sections, segs_per_sec);
+ f2fs_info(sbi, "Invalid segment/section count (%u, %u x %u)",
+ segment_count, total_sections, segs_per_sec);
return -EFSCORRUPTED;
}
if ((segment_count / segs_per_sec) < total_sections) {
- f2fs_msg(sb, KERN_INFO,
- "Small segment_count (%u < %u * %u)",
- segment_count, segs_per_sec, total_sections);
+ f2fs_info(sbi, "Small segment_count (%u < %u * %u)",
+ segment_count, segs_per_sec, total_sections);
return -EFSCORRUPTED;
}
if (segment_count > (le64_to_cpu(raw_super->block_count) >> 9)) {
- f2fs_msg(sb, KERN_INFO,
- "Wrong segment_count / block_count (%u > %llu)",
- segment_count, le64_to_cpu(raw_super->block_count));
+ f2fs_info(sbi, "Wrong segment_count / block_count (%u > %llu)",
+ segment_count, le64_to_cpu(raw_super->block_count));
return -EFSCORRUPTED;
}
+ if (RDEV(0).path[0]) {
+ block_t dev_seg_count = le32_to_cpu(RDEV(0).total_segments);
+ int i = 1;
+
+ while (i < MAX_DEVICES && RDEV(i).path[0]) {
+ dev_seg_count += le32_to_cpu(RDEV(i).total_segments);
+ i++;
+ }
+ if (segment_count != dev_seg_count) {
+ f2fs_info(sbi, "Segment count (%u) mismatch with total segments from devices (%u)",
+ segment_count, dev_seg_count);
+ return -EFSCORRUPTED;
+ }
+ }
+
if (secs_per_zone > total_sections || !secs_per_zone) {
- f2fs_msg(sb, KERN_INFO,
- "Wrong secs_per_zone / total_sections (%u, %u)",
- secs_per_zone, total_sections);
+ f2fs_info(sbi, "Wrong secs_per_zone / total_sections (%u, %u)",
+ secs_per_zone, total_sections);
return -EFSCORRUPTED;
}
if (le32_to_cpu(raw_super->extension_count) > F2FS_MAX_EXTENSION ||
raw_super->hot_ext_count > F2FS_MAX_EXTENSION ||
(le32_to_cpu(raw_super->extension_count) +
raw_super->hot_ext_count) > F2FS_MAX_EXTENSION) {
- f2fs_msg(sb, KERN_INFO,
- "Corrupted extension count (%u + %u > %u)",
- le32_to_cpu(raw_super->extension_count),
- raw_super->hot_ext_count,
- F2FS_MAX_EXTENSION);
+ f2fs_info(sbi, "Corrupted extension count (%u + %u > %u)",
+ le32_to_cpu(raw_super->extension_count),
+ raw_super->hot_ext_count,
+ F2FS_MAX_EXTENSION);
return -EFSCORRUPTED;
}
if (le32_to_cpu(raw_super->cp_payload) >
(blocks_per_seg - F2FS_CP_PACKS)) {
- f2fs_msg(sb, KERN_INFO,
- "Insane cp_payload (%u > %u)",
- le32_to_cpu(raw_super->cp_payload),
- blocks_per_seg - F2FS_CP_PACKS);
+ f2fs_info(sbi, "Insane cp_payload (%u > %u)",
+ le32_to_cpu(raw_super->cp_payload),
+ blocks_per_seg - F2FS_CP_PACKS);
return -EFSCORRUPTED;
}
@@ -2329,11 +2860,10 @@ static int sanity_check_raw_super(struct f2fs_sb_info *sbi,
if (le32_to_cpu(raw_super->node_ino) != 1 ||
le32_to_cpu(raw_super->meta_ino) != 2 ||
le32_to_cpu(raw_super->root_ino) != 3) {
- f2fs_msg(sb, KERN_INFO,
- "Invalid Fs Meta Ino: node(%u) meta(%u) root(%u)",
- le32_to_cpu(raw_super->node_ino),
- le32_to_cpu(raw_super->meta_ino),
- le32_to_cpu(raw_super->root_ino));
+ f2fs_info(sbi, "Invalid Fs Meta Ino: node(%u) meta(%u) root(%u)",
+ le32_to_cpu(raw_super->node_ino),
+ le32_to_cpu(raw_super->meta_ino),
+ le32_to_cpu(raw_super->root_ino));
return -EFSCORRUPTED;
}
@@ -2356,7 +2886,8 @@ int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi)
unsigned int log_blocks_per_seg;
unsigned int segment_count_main;
unsigned int cp_pack_start_sum, cp_payload;
- block_t user_block_count;
+ block_t user_block_count, valid_user_blocks;
+ block_t avail_node_count, valid_node_count;
int i, j;
total = le32_to_cpu(raw_super->segment_count);
@@ -2376,8 +2907,7 @@ int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi)
if (unlikely(fsmeta < F2FS_MIN_SEGMENTS ||
ovp_segments == 0 || reserved_segments == 0)) {
- f2fs_msg(sbi->sb, KERN_ERR,
- "Wrong layout: check mkfs.f2fs version");
+ f2fs_err(sbi, "Wrong layout: check mkfs.f2fs version");
return 1;
}
@@ -2386,8 +2916,23 @@ int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi)
log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg);
if (!user_block_count || user_block_count >=
segment_count_main << log_blocks_per_seg) {
- f2fs_msg(sbi->sb, KERN_ERR,
- "Wrong user_block_count: %u", user_block_count);
+ f2fs_err(sbi, "Wrong user_block_count: %u",
+ user_block_count);
+ return 1;
+ }
+
+ valid_user_blocks = le64_to_cpu(ckpt->valid_block_count);
+ if (valid_user_blocks > user_block_count) {
+ f2fs_err(sbi, "Wrong valid_user_blocks: %u, user_block_count: %u",
+ valid_user_blocks, user_block_count);
+ return 1;
+ }
+
+ valid_node_count = le32_to_cpu(ckpt->valid_node_count);
+ avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM;
+ if (valid_node_count > avail_node_count) {
+ f2fs_err(sbi, "Wrong valid_node_count: %u, avail_node_count: %u",
+ valid_node_count, avail_node_count);
return 1;
}
@@ -2401,10 +2946,9 @@ int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi)
for (j = i + 1; j < NR_CURSEG_NODE_TYPE; j++) {
if (le32_to_cpu(ckpt->cur_node_segno[i]) ==
le32_to_cpu(ckpt->cur_node_segno[j])) {
- f2fs_msg(sbi->sb, KERN_ERR,
- "Node segment (%u, %u) has the same "
- "segno: %u", i, j,
- le32_to_cpu(ckpt->cur_node_segno[i]));
+ f2fs_err(sbi, "Node segment (%u, %u) has the same segno: %u",
+ i, j,
+ le32_to_cpu(ckpt->cur_node_segno[i]));
return 1;
}
}
@@ -2416,10 +2960,9 @@ int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi)
for (j = i + 1; j < NR_CURSEG_DATA_TYPE; j++) {
if (le32_to_cpu(ckpt->cur_data_segno[i]) ==
le32_to_cpu(ckpt->cur_data_segno[j])) {
- f2fs_msg(sbi->sb, KERN_ERR,
- "Data segment (%u, %u) has the same "
- "segno: %u", i, j,
- le32_to_cpu(ckpt->cur_data_segno[i]));
+ f2fs_err(sbi, "Data segment (%u, %u) has the same segno: %u",
+ i, j,
+ le32_to_cpu(ckpt->cur_data_segno[i]));
return 1;
}
}
@@ -2428,10 +2971,9 @@ int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi)
for (j = 0; j < NR_CURSEG_DATA_TYPE; j++) {
if (le32_to_cpu(ckpt->cur_node_segno[i]) ==
le32_to_cpu(ckpt->cur_data_segno[j])) {
- f2fs_msg(sbi->sb, KERN_ERR,
- "Node segment (%u) and Data segment (%u)"
- " has the same segno: %u", i, j,
- le32_to_cpu(ckpt->cur_node_segno[i]));
+ f2fs_err(sbi, "Node segment (%u) and Data segment (%u) has the same segno: %u",
+ i, j,
+ le32_to_cpu(ckpt->cur_node_segno[i]));
return 1;
}
}
@@ -2442,9 +2984,8 @@ int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi)
if (sit_bitmap_size != ((sit_segs / 2) << log_blocks_per_seg) / 8 ||
nat_bitmap_size != ((nat_segs / 2) << log_blocks_per_seg) / 8) {
- f2fs_msg(sbi->sb, KERN_ERR,
- "Wrong bitmap size: sit: %u, nat:%u",
- sit_bitmap_size, nat_bitmap_size);
+ f2fs_err(sbi, "Wrong bitmap size: sit: %u, nat:%u",
+ sit_bitmap_size, nat_bitmap_size);
return 1;
}
@@ -2453,14 +2994,22 @@ int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi)
if (cp_pack_start_sum < cp_payload + 1 ||
cp_pack_start_sum > blocks_per_seg - 1 -
NR_CURSEG_TYPE) {
- f2fs_msg(sbi->sb, KERN_ERR,
- "Wrong cp_pack_start_sum: %u",
- cp_pack_start_sum);
+ f2fs_err(sbi, "Wrong cp_pack_start_sum: %u",
+ cp_pack_start_sum);
+ return 1;
+ }
+
+ if (__is_set_ckpt_flags(ckpt, CP_LARGE_NAT_BITMAP_FLAG) &&
+ le32_to_cpu(ckpt->checksum_offset) != CP_MIN_CHKSUM_OFFSET) {
+ f2fs_warn(sbi, "using deprecated layout of large_nat_bitmap, "
+ "please run fsck v1.13.0 or higher to repair, chksum_offset: %u, "
+ "fixed with patch: \"f2fs-tools: relocate chksum_offset for large_nat_bitmap feature\"",
+ le32_to_cpu(ckpt->checksum_offset));
return 1;
}
if (unlikely(f2fs_cp_error(sbi))) {
- f2fs_msg(sbi->sb, KERN_ERR, "A bug case: need to run fsck");
+ f2fs_err(sbi, "A bug case: need to run fsck");
return 1;
}
return 0;
@@ -2469,7 +3018,7 @@ int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi)
static void init_sb_info(struct f2fs_sb_info *sbi)
{
struct f2fs_super_block *raw_super = sbi->raw_super;
- int i, j;
+ int i;
sbi->log_sectors_per_block =
le32_to_cpu(raw_super->log_sectors_per_block);
@@ -2487,11 +3036,19 @@ static void init_sb_info(struct f2fs_sb_info *sbi)
sbi->node_ino_num = le32_to_cpu(raw_super->node_ino);
sbi->meta_ino_num = le32_to_cpu(raw_super->meta_ino);
sbi->cur_victim_sec = NULL_SECNO;
+ sbi->next_victim_seg[BG_GC] = NULL_SEGNO;
+ sbi->next_victim_seg[FG_GC] = NULL_SEGNO;
sbi->max_victim_search = DEF_MAX_VICTIM_SEARCH;
+ sbi->migration_granularity = sbi->segs_per_sec;
sbi->dir_level = DEF_DIR_LEVEL;
sbi->interval_time[CP_TIME] = DEF_CP_INTERVAL;
sbi->interval_time[REQ_TIME] = DEF_IDLE_INTERVAL;
+ sbi->interval_time[DISCARD_TIME] = DEF_IDLE_INTERVAL;
+ sbi->interval_time[GC_TIME] = DEF_IDLE_INTERVAL;
+ sbi->interval_time[DISABLE_TIME] = DEF_DISABLE_INTERVAL;
+ sbi->interval_time[UMOUNT_DISCARD_TIMEOUT] =
+ DEF_UMOUNT_DISCARD_TIMEOUT;
clear_sbi_flag(sbi, SBI_NEED_FSCK);
for (i = 0; i < NR_COUNT_TYPE; i++)
@@ -2502,9 +3059,6 @@ static void init_sb_info(struct f2fs_sb_info *sbi)
INIT_LIST_HEAD(&sbi->s_list);
mutex_init(&sbi->umount_mutex);
- for (i = 0; i < NR_PAGE_TYPE - 1; i++)
- for (j = HOT; j < NR_TEMP_TYPE; j++)
- mutex_init(&sbi->wio_mutex[i][j]);
init_rwsem(&sbi->io_order_lock);
spin_lock_init(&sbi->cp_lock);
@@ -2512,6 +3066,7 @@ static void init_sb_info(struct f2fs_sb_info *sbi)
spin_lock_init(&sbi->dev_lock);
init_rwsem(&sbi->sb_lock);
+ init_rwsem(&sbi->pin_sem);
}
static int init_percpu_info(struct f2fs_sb_info *sbi)
@@ -2541,7 +3096,7 @@ static int init_blkz_info(struct f2fs_sb_info *sbi, int devi)
unsigned int n = 0;
int err = -EIO;
- if (!f2fs_sb_has_blkzoned(sbi->sb))
+ if (!f2fs_sb_has_blkzoned(sbi))
return 0;
if (sbi->blocks_per_blkz && sbi->blocks_per_blkz !=
@@ -2557,9 +3112,11 @@ static int init_blkz_info(struct f2fs_sb_info *sbi, int devi)
if (nr_sectors & (bdev_zone_sectors(bdev) - 1))
FDEV(devi).nr_blkz++;
- FDEV(devi).blkz_type = f2fs_kmalloc(sbi, FDEV(devi).nr_blkz,
- GFP_KERNEL);
- if (!FDEV(devi).blkz_type)
+ FDEV(devi).blkz_seq = f2fs_kvzalloc(sbi,
+ BITS_TO_LONGS(FDEV(devi).nr_blkz)
+ * sizeof(unsigned long),
+ GFP_KERNEL);
+ if (!FDEV(devi).blkz_seq)
return -ENOMEM;
#define F2FS_REPORT_NR_ZONES 4096
@@ -2586,13 +3143,14 @@ static int init_blkz_info(struct f2fs_sb_info *sbi, int devi)
}
for (i = 0; i < nr_zones; i++) {
- FDEV(devi).blkz_type[n] = zones[i].type;
+ if (zones[i].type != BLK_ZONE_TYPE_CONVENTIONAL)
+ set_bit(n, FDEV(devi).blkz_seq);
sector += zones[i].len;
n++;
}
}
- kfree(zones);
+ kvfree(zones);
return err;
}
@@ -2621,19 +3179,20 @@ static int read_raw_super_block(struct f2fs_sb_info *sbi,
for (block = 0; block < 2; block++) {
bh = sb_bread(sb, block);
if (!bh) {
- f2fs_msg(sb, KERN_ERR, "Unable to read %dth superblock",
- block + 1);
+ f2fs_err(sbi, "Unable to read %dth superblock",
+ block + 1);
err = -EIO;
+ *recovery = 1;
continue;
}
/* sanity checking of raw super */
err = sanity_check_raw_super(sbi, bh);
if (err) {
- f2fs_msg(sb, KERN_ERR,
- "Can't find valid F2FS filesystem in %dth superblock",
- block + 1);
+ f2fs_err(sbi, "Can't find valid F2FS filesystem in %dth superblock",
+ block + 1);
brelse(bh);
+ *recovery = 1;
continue;
}
@@ -2646,13 +3205,9 @@ static int read_raw_super_block(struct f2fs_sb_info *sbi,
brelse(bh);
}
- /* Fail to read any one of the superblocks*/
- if (err < 0)
- *recovery = 1;
-
/* No valid superblock */
if (!*raw_super)
- kfree(super);
+ kvfree(super);
else
err = 0;
@@ -2662,6 +3217,7 @@ static int read_raw_super_block(struct f2fs_sb_info *sbi,
int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover)
{
struct buffer_head *bh;
+ __u32 crc = 0;
int err;
if ((recover && f2fs_readonly(sbi->sb)) ||
@@ -2670,6 +3226,13 @@ int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover)
return -EROFS;
}
+ /* we should update superblock crc here */
+ if (!recover && f2fs_sb_has_sb_chksum(sbi)) {
+ crc = f2fs_crc32(sbi, F2FS_RAW_SUPER(sbi),
+ offsetof(struct f2fs_super_block, crc));
+ F2FS_RAW_SUPER(sbi)->crc = cpu_to_le32(crc);
+ }
+
/* write back-up superblock first */
bh = sb_bread(sbi->sb, sbi->valid_super_block ? 0 : 1);
if (!bh)
@@ -2752,37 +3315,73 @@ static int f2fs_scan_devices(struct f2fs_sb_info *sbi)
#ifdef CONFIG_BLK_DEV_ZONED
if (bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HM &&
- !f2fs_sb_has_blkzoned(sbi->sb)) {
- f2fs_msg(sbi->sb, KERN_ERR,
- "Zoned block device feature not enabled\n");
+ !f2fs_sb_has_blkzoned(sbi)) {
+ f2fs_err(sbi, "Zoned block device feature not enabled\n");
return -EINVAL;
}
if (bdev_zoned_model(FDEV(i).bdev) != BLK_ZONED_NONE) {
if (init_blkz_info(sbi, i)) {
- f2fs_msg(sbi->sb, KERN_ERR,
- "Failed to initialize F2FS blkzone information");
+ f2fs_err(sbi, "Failed to initialize F2FS blkzone information");
return -EINVAL;
}
if (max_devices == 1)
break;
- f2fs_msg(sbi->sb, KERN_INFO,
- "Mount Device [%2d]: %20s, %8u, %8x - %8x (zone: %s)",
- i, FDEV(i).path,
- FDEV(i).total_segments,
- FDEV(i).start_blk, FDEV(i).end_blk,
- bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HA ?
- "Host-aware" : "Host-managed");
+ f2fs_info(sbi, "Mount Device [%2d]: %20s, %8u, %8x - %8x (zone: %s)",
+ i, FDEV(i).path,
+ FDEV(i).total_segments,
+ FDEV(i).start_blk, FDEV(i).end_blk,
+ bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HA ?
+ "Host-aware" : "Host-managed");
continue;
}
#endif
- f2fs_msg(sbi->sb, KERN_INFO,
- "Mount Device [%2d]: %20s, %8u, %8x - %8x",
- i, FDEV(i).path,
- FDEV(i).total_segments,
- FDEV(i).start_blk, FDEV(i).end_blk);
+ f2fs_info(sbi, "Mount Device [%2d]: %20s, %8u, %8x - %8x",
+ i, FDEV(i).path,
+ FDEV(i).total_segments,
+ FDEV(i).start_blk, FDEV(i).end_blk);
}
- f2fs_msg(sbi->sb, KERN_INFO,
- "IO Block Size: %8d KB", F2FS_IO_SIZE_KB(sbi));
+ f2fs_info(sbi,
+ "IO Block Size: %8d KB", F2FS_IO_SIZE_KB(sbi));
+ return 0;
+}
+
+static int f2fs_setup_casefold(struct f2fs_sb_info *sbi)
+{
+#ifdef CONFIG_UNICODE
+ if (f2fs_sb_has_casefold(sbi) && !sbi->sb->s_encoding) {
+ const struct f2fs_sb_encodings *encoding_info;
+ struct unicode_map *encoding;
+ __u16 encoding_flags;
+
+ if (f2fs_sb_read_encoding(sbi->raw_super, &encoding_info,
+ &encoding_flags)) {
+ f2fs_err(sbi,
+ "Encoding requested by superblock is unknown");
+ return -EINVAL;
+ }
+
+ encoding = utf8_load(encoding_info->version);
+ if (IS_ERR(encoding)) {
+ f2fs_err(sbi,
+ "can't mount with superblock charset: %s-%s "
+ "not supported by the kernel. flags: 0x%x.",
+ encoding_info->name, encoding_info->version,
+ encoding_flags);
+ return PTR_ERR(encoding);
+ }
+ f2fs_info(sbi, "Using encoding defined by superblock: "
+ "%s-%s with flags 0x%hx", encoding_info->name,
+ encoding_info->version?:"\b", encoding_flags);
+
+ sbi->sb->s_encoding = encoding;
+ sbi->sb->s_encoding_flags = encoding_flags;
+ }
+#else
+ if (f2fs_sb_has_casefold(sbi)) {
+ f2fs_err(sbi, "Filesystem with casefold feature cannot be mounted without CONFIG_UNICODE");
+ return -EINVAL;
+ }
+#endif
return 0;
}
@@ -2806,10 +3405,11 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
struct f2fs_super_block *raw_super;
struct inode *root;
int err;
- bool retry = true, need_fsck = false;
+ bool skip_recovery = false, need_fsck = false;
char *options = NULL;
int recovery, i, valid_super_block;
struct curseg_info *seg_i;
+ int retry_cnt = 1;
try_onemore:
err = -EINVAL;
@@ -2827,7 +3427,7 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
/* Load the checksum driver */
sbi->s_chksum_driver = crypto_alloc_shash("crc32", 0, 0);
if (IS_ERR(sbi->s_chksum_driver)) {
- f2fs_msg(sb, KERN_ERR, "Cannot load crc32 driver.");
+ f2fs_err(sbi, "Cannot load crc32 driver.");
err = PTR_ERR(sbi->s_chksum_driver);
sbi->s_chksum_driver = NULL;
goto free_sbi;
@@ -2835,7 +3435,7 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
/* set a block size */
if (unlikely(!sb_set_blocksize(sb, F2FS_BLKSIZE))) {
- f2fs_msg(sb, KERN_ERR, "unable to set blocksize");
+ f2fs_err(sbi, "unable to set blocksize");
goto free_sbi;
}
@@ -2848,7 +3448,7 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
sbi->raw_super = raw_super;
/* precompute checksum seed for metadata */
- if (f2fs_sb_has_inode_chksum(sb))
+ if (f2fs_sb_has_inode_chksum(sbi))
sbi->s_chksum_seed = f2fs_chksum(sbi, ~0, raw_super->uuid,
sizeof(raw_super->uuid));
@@ -2858,9 +3458,8 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
* devices, but mandatory for host-managed zoned block devices.
*/
#ifndef CONFIG_BLK_DEV_ZONED
- if (f2fs_sb_has_blkzoned(sb)) {
- f2fs_msg(sb, KERN_ERR,
- "Zoned block device support is not enabled\n");
+ if (f2fs_sb_has_blkzoned(sbi)) {
+ f2fs_err(sbi, "Zoned block device support is not enabled");
err = -EOPNOTSUPP;
goto free_sb_buf;
}
@@ -2873,7 +3472,7 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
goto free_sb_buf;
}
- err = parse_options(sb, options);
+ err = parse_options(sb, options, false);
if (err)
goto free_options;
@@ -2881,17 +3480,17 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
sb->s_maxbytes = sbi->max_file_blocks <<
le32_to_cpu(raw_super->log_blocksize);
sb->s_max_links = F2FS_LINK_MAX;
- get_random_bytes(&sbi->s_next_generation, sizeof(u32));
+
+ err = f2fs_setup_casefold(sbi);
+ if (err)
+ goto free_options;
#ifdef CONFIG_QUOTA
sb->dq_op = &f2fs_quota_operations;
- if (f2fs_sb_has_quota_ino(sb))
- sb->s_qcop = &dquot_quotactl_sysfile_ops;
- else
- sb->s_qcop = &f2fs_quotactl_ops;
+ sb->s_qcop = &f2fs_quotactl_ops;
sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP | QTYPE_MASK_PRJ;
- if (f2fs_sb_has_quota_ino(sbi->sb)) {
+ if (f2fs_sb_has_quota_ino(sbi)) {
for (i = 0; i < MAXQUOTAS; i++) {
if (f2fs_qf_ino(sbi->sb, i))
sbi->nquota_files++;
@@ -2900,9 +3499,12 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
#endif
sb->s_op = &f2fs_sops;
-#ifdef CONFIG_F2FS_FS_ENCRYPTION
+#ifdef CONFIG_FS_ENCRYPTION
sb->s_cop = &f2fs_cryptops;
#endif
+#ifdef CONFIG_FS_VERITY
+ sb->s_vop = &f2fs_verityops;
+#endif
sb->s_xattr = f2fs_xattr_handlers;
sb->s_export_op = &f2fs_export_ops;
sb->s_magic = F2FS_SUPER_MAGIC;
@@ -2914,7 +3516,7 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
/* init f2fs-specific super block info */
sbi->valid_super_block = valid_super_block;
- mutex_init(&sbi->gc_mutex);
+ init_rwsem(&sbi->gc_lock);
mutex_init(&sbi->writepages);
mutex_init(&sbi->cp_mutex);
init_rwsem(&sbi->node_write);
@@ -2927,6 +3529,7 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
/* init iostat info */
spin_lock_init(&sbi->iostat_lock);
sbi->iostat_enable = false;
+ sbi->iostat_period_ms = DEFAULT_IOSTAT_PERIOD_MS;
for (i = 0; i < NR_PAGE_TYPE; i++) {
int n = (i == META) ? 1: NR_TEMP_TYPE;
@@ -2948,10 +3551,13 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
sbi->write_io[i][j].bio = NULL;
spin_lock_init(&sbi->write_io[i][j].io_lock);
INIT_LIST_HEAD(&sbi->write_io[i][j].io_list);
+ INIT_LIST_HEAD(&sbi->write_io[i][j].bio_list);
+ init_rwsem(&sbi->write_io[i][j].bio_list_lock);
}
}
init_rwsem(&sbi->cp_rwsem);
+ init_rwsem(&sbi->quota_sem);
init_waitqueue_head(&sbi->cp_wait);
init_sb_info(sbi);
@@ -2959,7 +3565,7 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
if (err)
goto free_bio_info;
- if (F2FS_IO_SIZE(sbi) > 1) {
+ if (F2FS_IO_ALIGNED(sbi)) {
sbi->write_io_dummy =
mempool_create_page_pool(2 * (F2FS_IO_SIZE(sbi) - 1), 0);
if (!sbi->write_io_dummy) {
@@ -2968,24 +3574,45 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
}
}
+ /* init per sbi slab cache */
+ err = f2fs_init_xattr_caches(sbi);
+ if (err)
+ goto free_io_dummy;
+
/* get an inode for meta space */
sbi->meta_inode = f2fs_iget(sb, F2FS_META_INO(sbi));
if (IS_ERR(sbi->meta_inode)) {
- f2fs_msg(sb, KERN_ERR, "Failed to read F2FS meta data inode");
+ f2fs_err(sbi, "Failed to read F2FS meta data inode");
err = PTR_ERR(sbi->meta_inode);
- goto free_io_dummy;
+ goto free_xattr_cache;
}
err = f2fs_get_valid_checkpoint(sbi);
if (err) {
- f2fs_msg(sb, KERN_ERR, "Failed to get valid F2FS checkpoint");
+ f2fs_err(sbi, "Failed to get valid F2FS checkpoint");
goto free_meta_inode;
}
+ if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_QUOTA_NEED_FSCK_FLAG))
+ set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
+ if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_DISABLED_QUICK_FLAG)) {
+ set_sbi_flag(sbi, SBI_CP_DISABLED_QUICK);
+ sbi->interval_time[DISABLE_TIME] = DEF_DISABLE_QUICK_INTERVAL;
+ }
+
+ if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_FSCK_FLAG))
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
+
/* Initialize device list */
err = f2fs_scan_devices(sbi);
if (err) {
- f2fs_msg(sb, KERN_ERR, "Failed to find devices");
+ f2fs_err(sbi, "Failed to find devices");
+ goto free_devices;
+ }
+
+ err = f2fs_init_post_read_wq(sbi);
+ if (err) {
+ f2fs_err(sbi, "Failed to initialize post read workqueue");
goto free_devices;
}
@@ -3000,11 +3627,13 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
sbi->reserved_blocks = 0;
sbi->current_reserved_blocks = 0;
limit_reserve_root(sbi);
+ adjust_unusable_cap_perc(sbi);
for (i = 0; i < NR_INODE_TYPE; i++) {
INIT_LIST_HEAD(&sbi->inode_list[i]);
spin_lock_init(&sbi->inode_lock[i]);
}
+ mutex_init(&sbi->flush_lock);
f2fs_init_extent_cache_info(sbi);
@@ -3015,14 +3644,14 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
/* setup f2fs internal modules */
err = f2fs_build_segment_manager(sbi);
if (err) {
- f2fs_msg(sb, KERN_ERR,
- "Failed to initialize F2FS segment manager");
+ f2fs_err(sbi, "Failed to initialize F2FS segment manager (%d)",
+ err);
goto free_sm;
}
err = f2fs_build_node_manager(sbi);
if (err) {
- f2fs_msg(sb, KERN_ERR,
- "Failed to initialize F2FS node manager");
+ f2fs_err(sbi, "Failed to initialize F2FS node manager (%d)",
+ err);
goto free_nm;
}
@@ -3047,7 +3676,7 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
/* get an inode for node space */
sbi->node_inode = f2fs_iget(sb, F2FS_NODE_INO(sbi));
if (IS_ERR(sbi->node_inode)) {
- f2fs_msg(sb, KERN_ERR, "Failed to read node inode");
+ f2fs_err(sbi, "Failed to read node inode");
err = PTR_ERR(sbi->node_inode);
goto free_stats;
}
@@ -3055,7 +3684,7 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
/* read root inode and dentry */
root = f2fs_iget(sb, F2FS_ROOT_INO(sbi));
if (IS_ERR(root)) {
- f2fs_msg(sb, KERN_ERR, "Failed to read root inode");
+ f2fs_err(sbi, "Failed to read root inode");
err = PTR_ERR(root);
goto free_node_inode;
}
@@ -3069,7 +3698,7 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
sb->s_root = d_make_root(root); /* allocate root dentry */
if (!sb->s_root) {
err = -ENOMEM;
- goto free_root_inode;
+ goto free_node_inode;
}
err = f2fs_register_sysfs(sbi);
@@ -3078,43 +3707,50 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
#ifdef CONFIG_QUOTA
/* Enable quota usage during mount */
- if (f2fs_sb_has_quota_ino(sb) && !f2fs_readonly(sb)) {
+ if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sb)) {
err = f2fs_enable_quotas(sb);
- if (err) {
- f2fs_msg(sb, KERN_ERR,
- "Cannot turn on quotas: error %d", err);
- goto free_sysfs;
- }
+ if (err)
+ f2fs_err(sbi, "Cannot turn on quotas: error %d", err);
}
#endif
- /* if there are nt orphan nodes free them */
+ /* if there are any orphan inodes, free them */
err = f2fs_recover_orphan_inodes(sbi);
if (err)
goto free_meta;
+ if (unlikely(is_set_ckpt_flags(sbi, CP_DISABLED_FLAG)))
+ goto reset_checkpoint;
+
/* recover fsynced data */
- if (!test_opt(sbi, DISABLE_ROLL_FORWARD)) {
+ if (!test_opt(sbi, DISABLE_ROLL_FORWARD) &&
+ !test_opt(sbi, NORECOVERY)) {
/*
* mount should be failed, when device has readonly mode, and
* previous checkpoint was not done by clean system shutdown.
*/
- if (bdev_read_only(sb->s_bdev) &&
- !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) {
- err = -EROFS;
- goto free_meta;
+ if (f2fs_hw_is_readonly(sbi)) {
+ if (!is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) {
+ err = -EROFS;
+ f2fs_err(sbi, "Need to recover fsync data, but write access unavailable");
+ goto free_meta;
+ }
+ f2fs_info(sbi, "write access unavailable, skipping recovery");
+ goto reset_checkpoint;
}
if (need_fsck)
set_sbi_flag(sbi, SBI_NEED_FSCK);
- if (!retry)
- goto skip_recovery;
+ if (skip_recovery)
+ goto reset_checkpoint;
err = f2fs_recover_fsync_data(sbi, false);
if (err < 0) {
+ if (err != -ENOMEM)
+ skip_recovery = true;
need_fsck = true;
- f2fs_msg(sb, KERN_ERR,
- "Cannot recover all fsync data errno=%d", err);
+ f2fs_err(sbi, "Cannot recover all fsync data errno=%d",
+ err);
goto free_meta;
}
} else {
@@ -3122,49 +3758,61 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
if (!f2fs_readonly(sb) && err > 0) {
err = -EINVAL;
- f2fs_msg(sb, KERN_ERR,
- "Need to recover fsync data");
+ f2fs_err(sbi, "Need to recover fsync data");
goto free_meta;
}
}
-skip_recovery:
+reset_checkpoint:
/* f2fs_recover_fsync_data() cleared this already */
clear_sbi_flag(sbi, SBI_POR_DOING);
+ if (test_opt(sbi, DISABLE_CHECKPOINT)) {
+ err = f2fs_disable_checkpoint(sbi);
+ if (err)
+ goto sync_free_meta;
+ } else if (is_set_ckpt_flags(sbi, CP_DISABLED_FLAG)) {
+ f2fs_enable_checkpoint(sbi);
+ }
+
/*
* If filesystem is not mounted as read-only then
* do start the gc_thread.
*/
- if (test_opt(sbi, BG_GC) && !f2fs_readonly(sb)) {
+ if (F2FS_OPTION(sbi).bggc_mode != BGGC_MODE_OFF && !f2fs_readonly(sb)) {
/* After POR, we can run background GC thread.*/
err = f2fs_start_gc_thread(sbi);
if (err)
- goto free_meta;
+ goto sync_free_meta;
}
- kfree(options);
+ kvfree(options);
/* recover broken superblock */
if (recovery) {
err = f2fs_commit_super(sbi, true);
- f2fs_msg(sb, KERN_INFO,
- "Try to recover %dth superblock, ret: %d",
- sbi->valid_super_block ? 1 : 2, err);
+ f2fs_info(sbi, "Try to recover %dth superblock, ret: %d",
+ sbi->valid_super_block ? 1 : 2, err);
}
f2fs_join_shrinker(sbi);
f2fs_tuning_parameters(sbi);
- f2fs_msg(sbi->sb, KERN_NOTICE, "Mounted with checkpoint version = %llx",
- cur_cp_version(F2FS_CKPT(sbi)));
+ f2fs_notice(sbi, "Mounted with checkpoint version = %llx",
+ cur_cp_version(F2FS_CKPT(sbi)));
f2fs_update_time(sbi, CP_TIME);
f2fs_update_time(sbi, REQ_TIME);
+ clear_sbi_flag(sbi, SBI_CP_DISABLED_QUICK);
return 0;
+sync_free_meta:
+ /* safe to flush all the data */
+ sync_filesystem(sbi->sb);
+ retry_cnt = 0;
+
free_meta:
#ifdef CONFIG_QUOTA
f2fs_truncate_quota_inode_pages(sb);
- if (f2fs_sb_has_quota_ino(sb) && !f2fs_readonly(sb))
+ if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sb))
f2fs_quota_off_umount(sbi->sb);
#endif
/*
@@ -3174,9 +3822,8 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
* falls into an infinite loop in f2fs_sync_meta_pages().
*/
truncate_inode_pages_final(META_MAPPING(sbi));
-#ifdef CONFIG_QUOTA
-free_sysfs:
-#endif
+ /* evict some inodes being cached by GC */
+ evict_inodes(sb);
f2fs_unregister_sysfs(sbi);
free_root_inode:
dput(sb->s_root);
@@ -3192,36 +3839,44 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
f2fs_destroy_node_manager(sbi);
free_sm:
f2fs_destroy_segment_manager(sbi);
+ f2fs_destroy_post_read_wq(sbi);
free_devices:
destroy_device_list(sbi);
- kfree(sbi->ckpt);
+ kvfree(sbi->ckpt);
free_meta_inode:
make_bad_inode(sbi->meta_inode);
iput(sbi->meta_inode);
sbi->meta_inode = NULL;
+free_xattr_cache:
+ f2fs_destroy_xattr_caches(sbi);
free_io_dummy:
mempool_destroy(sbi->write_io_dummy);
free_percpu:
destroy_percpu_info(sbi);
free_bio_info:
for (i = 0; i < NR_PAGE_TYPE; i++)
- kfree(sbi->write_io[i]);
+ kvfree(sbi->write_io[i]);
+
+#ifdef CONFIG_UNICODE
+ utf8_unload(sb->s_encoding);
+#endif
free_options:
#ifdef CONFIG_QUOTA
for (i = 0; i < MAXQUOTAS; i++)
- kfree(F2FS_OPTION(sbi).s_qf_names[i]);
+ kvfree(F2FS_OPTION(sbi).s_qf_names[i]);
#endif
- kfree(options);
+ fscrypt_free_dummy_context(&F2FS_OPTION(sbi).dummy_enc_ctx);
+ kvfree(options);
free_sb_buf:
- kfree(raw_super);
+ kvfree(raw_super);
free_sbi:
if (sbi->s_chksum_driver)
crypto_free_shash(sbi->s_chksum_driver);
- kfree(sbi);
+ kvfree(sbi);
/* give only one another chance */
- if (retry) {
- retry = false;
+ if (retry_cnt > 0 && skip_recovery) {
+ retry_cnt--;
shrink_dcache_sb(sb);
goto try_onemore;
}
@@ -3322,17 +3977,28 @@ static int __init init_f2fs_fs(void)
err = register_filesystem(&f2fs_fs_type);
if (err)
goto free_shrinker;
- err = f2fs_create_root_stats();
- if (err)
- goto free_filesystem;
+ f2fs_create_root_stats();
err = f2fs_init_post_read_processing();
if (err)
goto free_root_stats;
+ err = f2fs_init_bio_entry_cache();
+ if (err)
+ goto free_post_read;
+ err = f2fs_init_bioset();
+ if (err)
+ goto free_bio_enrty_cache;
+ err = f2fs_init_compress_mempool();
+ if (err)
+ goto free_bioset;
return 0;
-
+free_bioset:
+ f2fs_destroy_bioset();
+free_bio_enrty_cache:
+ f2fs_destroy_bio_entry_cache();
+free_post_read:
+ f2fs_destroy_post_read_processing();
free_root_stats:
f2fs_destroy_root_stats();
-free_filesystem:
unregister_filesystem(&f2fs_fs_type);
free_shrinker:
unregister_shrinker(&f2fs_shrinker_info);
@@ -3354,6 +4020,9 @@ static int __init init_f2fs_fs(void)
static void __exit exit_f2fs_fs(void)
{
+ f2fs_destroy_compress_mempool();
+ f2fs_destroy_bioset();
+ f2fs_destroy_bio_entry_cache();
f2fs_destroy_post_read_processing();
f2fs_destroy_root_stats();
unregister_filesystem(&f2fs_fs_type);
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index 89b6c33..d90bf4c 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -1,22 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* f2fs sysfs interface
*
* Copyright (c) 2012 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
* Copyright (c) 2017 Chao Yu <chao@kernel.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/compiler.h>
#include <linux/proc_fs.h>
#include <linux/f2fs_fs.h>
#include <linux/seq_file.h>
+#include <linux/unicode.h>
#include "f2fs.h"
#include "segment.h"
#include "gc.h"
+#include <trace/events/f2fs.h>
static struct proc_dir_entry *f2fs_proc_root;
@@ -27,6 +26,9 @@ enum {
DCC_INFO, /* struct discard_cmd_control */
NM_INFO, /* struct f2fs_nm_info */
F2FS_SBI, /* struct f2fs_sb_info */
+#ifdef CONFIG_F2FS_STAT_FS
+ STAT_INFO, /* struct f2fs_stat_info */
+#endif
#ifdef CONFIG_F2FS_FAULT_INJECTION
FAULT_INFO_RATE, /* struct f2fs_fault_info */
FAULT_INFO_TYPE, /* struct f2fs_fault_info */
@@ -44,6 +46,9 @@ struct f2fs_attr {
int id;
};
+static ssize_t f2fs_sbi_show(struct f2fs_attr *a,
+ struct f2fs_sb_info *sbi, char *buf);
+
static unsigned char *__struct_ptr(struct f2fs_sb_info *sbi, int struct_type)
{
if (struct_type == GC_THREAD)
@@ -61,14 +66,25 @@ static unsigned char *__struct_ptr(struct f2fs_sb_info *sbi, int struct_type)
struct_type == FAULT_INFO_TYPE)
return (unsigned char *)&F2FS_OPTION(sbi).fault_info;
#endif
+#ifdef CONFIG_F2FS_STAT_FS
+ else if (struct_type == STAT_INFO)
+ return (unsigned char *)F2FS_STAT(sbi);
+#endif
return NULL;
}
static ssize_t dirty_segments_show(struct f2fs_attr *a,
struct f2fs_sb_info *sbi, char *buf)
{
- return snprintf(buf, PAGE_SIZE, "%llu\n",
- (unsigned long long)(dirty_segments(sbi)));
+ return sprintf(buf, "%llu\n",
+ (unsigned long long)(dirty_segments(sbi)));
+}
+
+static ssize_t free_segments_show(struct f2fs_attr *a,
+ struct f2fs_sb_info *sbi, char *buf)
+{
+ return sprintf(buf, "%llu\n",
+ (unsigned long long)(free_segments(sbi)));
}
static ssize_t lifetime_write_kbytes_show(struct f2fs_attr *a,
@@ -77,10 +93,10 @@ static ssize_t lifetime_write_kbytes_show(struct f2fs_attr *a,
struct super_block *sb = sbi->sb;
if (!sb->s_bdev->bd_part)
- return snprintf(buf, PAGE_SIZE, "0\n");
+ return sprintf(buf, "0\n");
- return snprintf(buf, PAGE_SIZE, "%llu\n",
- (unsigned long long)(sbi->kbytes_written +
+ return sprintf(buf, "%llu\n",
+ (unsigned long long)(sbi->kbytes_written +
BD_PART_WRITTEN(sbi)));
}
@@ -91,45 +107,124 @@ static ssize_t features_show(struct f2fs_attr *a,
int len = 0;
if (!sb->s_bdev->bd_part)
- return snprintf(buf, PAGE_SIZE, "0\n");
+ return sprintf(buf, "0\n");
- if (f2fs_sb_has_encrypt(sb))
- len += snprintf(buf, PAGE_SIZE - len, "%s",
+ if (f2fs_sb_has_encrypt(sbi))
+ len += scnprintf(buf, PAGE_SIZE - len, "%s",
"encryption");
- if (f2fs_sb_has_blkzoned(sb))
- len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
+ if (f2fs_sb_has_blkzoned(sbi))
+ len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
len ? ", " : "", "blkzoned");
- if (f2fs_sb_has_extra_attr(sb))
- len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
+ if (f2fs_sb_has_extra_attr(sbi))
+ len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
len ? ", " : "", "extra_attr");
- if (f2fs_sb_has_project_quota(sb))
- len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
+ if (f2fs_sb_has_project_quota(sbi))
+ len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
len ? ", " : "", "projquota");
- if (f2fs_sb_has_inode_chksum(sb))
- len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
+ if (f2fs_sb_has_inode_chksum(sbi))
+ len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
len ? ", " : "", "inode_checksum");
- if (f2fs_sb_has_flexible_inline_xattr(sb))
- len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
+ if (f2fs_sb_has_flexible_inline_xattr(sbi))
+ len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
len ? ", " : "", "flexible_inline_xattr");
- if (f2fs_sb_has_quota_ino(sb))
- len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
+ if (f2fs_sb_has_quota_ino(sbi))
+ len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
len ? ", " : "", "quota_ino");
- if (f2fs_sb_has_inode_crtime(sb))
- len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
+ if (f2fs_sb_has_inode_crtime(sbi))
+ len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
len ? ", " : "", "inode_crtime");
- if (f2fs_sb_has_lost_found(sb))
- len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
+ if (f2fs_sb_has_lost_found(sbi))
+ len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
len ? ", " : "", "lost_found");
- len += snprintf(buf + len, PAGE_SIZE - len, "\n");
+ if (f2fs_sb_has_verity(sbi))
+ len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
+ len ? ", " : "", "verity");
+ if (f2fs_sb_has_sb_chksum(sbi))
+ len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
+ len ? ", " : "", "sb_checksum");
+ if (f2fs_sb_has_casefold(sbi))
+ len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
+ len ? ", " : "", "casefold");
+ if (f2fs_sb_has_compression(sbi))
+ len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
+ len ? ", " : "", "compression");
+ len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
+ len ? ", " : "", "pin_file");
+ len += scnprintf(buf + len, PAGE_SIZE - len, "\n");
return len;
}
static ssize_t current_reserved_blocks_show(struct f2fs_attr *a,
struct f2fs_sb_info *sbi, char *buf)
{
- return snprintf(buf, PAGE_SIZE, "%u\n", sbi->current_reserved_blocks);
+ return sprintf(buf, "%u\n", sbi->current_reserved_blocks);
}
+static ssize_t unusable_show(struct f2fs_attr *a,
+ struct f2fs_sb_info *sbi, char *buf)
+{
+ block_t unusable;
+
+ if (test_opt(sbi, DISABLE_CHECKPOINT))
+ unusable = sbi->unusable_block_count;
+ else
+ unusable = f2fs_get_unusable_blocks(sbi);
+ return sprintf(buf, "%llu\n", (unsigned long long)unusable);
+}
+
+static ssize_t encoding_show(struct f2fs_attr *a,
+ struct f2fs_sb_info *sbi, char *buf)
+{
+#ifdef CONFIG_UNICODE
+ struct super_block *sb = sbi->sb;
+
+ if (f2fs_sb_has_casefold(sbi))
+ return snprintf(buf, PAGE_SIZE, "%s (%d.%d.%d)\n",
+ sb->s_encoding->charset,
+ (sb->s_encoding->version >> 16) & 0xff,
+ (sb->s_encoding->version >> 8) & 0xff,
+ sb->s_encoding->version & 0xff);
+#endif
+ return sprintf(buf, "(none)");
+}
+
+static ssize_t mounted_time_sec_show(struct f2fs_attr *a,
+ struct f2fs_sb_info *sbi, char *buf)
+{
+ return sprintf(buf, "%llu", SIT_I(sbi)->mounted_time);
+}
+
+#ifdef CONFIG_F2FS_STAT_FS
+static ssize_t moved_blocks_foreground_show(struct f2fs_attr *a,
+ struct f2fs_sb_info *sbi, char *buf)
+{
+ struct f2fs_stat_info *si = F2FS_STAT(sbi);
+
+ return sprintf(buf, "%llu\n",
+ (unsigned long long)(si->tot_blks -
+ (si->bg_data_blks + si->bg_node_blks)));
+}
+
+static ssize_t moved_blocks_background_show(struct f2fs_attr *a,
+ struct f2fs_sb_info *sbi, char *buf)
+{
+ struct f2fs_stat_info *si = F2FS_STAT(sbi);
+
+ return sprintf(buf, "%llu\n",
+ (unsigned long long)(si->bg_data_blks + si->bg_node_blks));
+}
+
+static ssize_t avg_vblocks_show(struct f2fs_attr *a,
+ struct f2fs_sb_info *sbi, char *buf)
+{
+ struct f2fs_stat_info *si = F2FS_STAT(sbi);
+
+ si->dirty_count = dirty_segments(sbi);
+ f2fs_update_sit_info(sbi);
+ return sprintf(buf, "%llu\n", (unsigned long long)(si->avg_vblocks));
+}
+#endif
+
static ssize_t f2fs_sbi_show(struct f2fs_attr *a,
struct f2fs_sb_info *sbi, char *buf)
{
@@ -147,23 +242,23 @@ static ssize_t f2fs_sbi_show(struct f2fs_attr *a,
int hot_count = sbi->raw_super->hot_ext_count;
int len = 0, i;
- len += snprintf(buf + len, PAGE_SIZE - len,
+ len += scnprintf(buf + len, PAGE_SIZE - len,
"cold file extension:\n");
for (i = 0; i < cold_count; i++)
- len += snprintf(buf + len, PAGE_SIZE - len, "%s\n",
+ len += scnprintf(buf + len, PAGE_SIZE - len, "%s\n",
extlist[i]);
- len += snprintf(buf + len, PAGE_SIZE - len,
+ len += scnprintf(buf + len, PAGE_SIZE - len,
"hot file extension:\n");
for (i = cold_count; i < cold_count + hot_count; i++)
- len += snprintf(buf + len, PAGE_SIZE - len, "%s\n",
+ len += scnprintf(buf + len, PAGE_SIZE - len, "%s\n",
extlist[i]);
return len;
}
ui = (unsigned int *)(ptr + a->offset);
- return snprintf(buf, PAGE_SIZE, "%u\n", *ui);
+ return sprintf(buf, "%u\n", *ui);
}
static ssize_t __sbi_store(struct f2fs_attr *a,
@@ -222,6 +317,8 @@ static ssize_t __sbi_store(struct f2fs_attr *a,
#ifdef CONFIG_F2FS_FAULT_INJECTION
if (a->struct_type == FAULT_INFO_TYPE && t >= (1 << FAULT_MAX))
return -EINVAL;
+ if (a->struct_type == FAULT_INFO_RATE && t >= UINT_MAX)
+ return -EINVAL;
#endif
if (a->struct_type == RESERVED_BLOCKS) {
spin_lock(&sbi->stat_lock);
@@ -246,6 +343,11 @@ static ssize_t __sbi_store(struct f2fs_attr *a,
return count;
}
+ if (!strcmp(a->attr.name, "migration_granularity")) {
+ if (t == 0 || t > sbi->segs_per_sec)
+ return -EINVAL;
+ }
+
if (!strcmp(a->attr.name, "trim_sections"))
return -EINVAL;
@@ -273,7 +375,6 @@ static ssize_t __sbi_store(struct f2fs_attr *a,
return count;
}
-
if (!strcmp(a->attr.name, "iostat_enable")) {
sbi->iostat_enable = !!t;
if (!sbi->iostat_enable)
@@ -281,6 +382,15 @@ static ssize_t __sbi_store(struct f2fs_attr *a,
return count;
}
+ if (!strcmp(a->attr.name, "iostat_period_ms")) {
+ if (t < MIN_IOSTAT_PERIOD_MS || t > MAX_IOSTAT_PERIOD_MS)
+ return -EINVAL;
+ spin_lock(&sbi->iostat_lock);
+ sbi->iostat_period_ms = (unsigned int)t;
+ spin_unlock(&sbi->iostat_lock);
+ return count;
+ }
+
*ui = (unsigned int)t;
return count;
@@ -343,6 +453,11 @@ enum feat_id {
FEAT_QUOTA_INO,
FEAT_INODE_CRTIME,
FEAT_LOST_FOUND,
+ FEAT_VERITY,
+ FEAT_SB_CHECKSUM,
+ FEAT_CASEFOLD,
+ FEAT_COMPRESSION,
+ FEAT_TEST_DUMMY_ENCRYPTION_V2,
};
static ssize_t f2fs_feature_show(struct f2fs_attr *a,
@@ -359,7 +474,12 @@ static ssize_t f2fs_feature_show(struct f2fs_attr *a,
case FEAT_QUOTA_INO:
case FEAT_INODE_CRTIME:
case FEAT_LOST_FOUND:
- return snprintf(buf, PAGE_SIZE, "supported\n");
+ case FEAT_VERITY:
+ case FEAT_SB_CHECKSUM:
+ case FEAT_CASEFOLD:
+ case FEAT_COMPRESSION:
+ case FEAT_TEST_DUMMY_ENCRYPTION_V2:
+ return sprintf(buf, "supported\n");
}
return 0;
}
@@ -388,6 +508,14 @@ static struct f2fs_attr f2fs_attr_##_name = { \
.id = _id, \
}
+#define F2FS_STAT_ATTR(_struct_type, _struct_name, _name, _elname) \
+static struct f2fs_attr f2fs_attr_##_name = { \
+ .attr = {.name = __stringify(_name), .mode = 0444 }, \
+ .show = f2fs_sbi_show, \
+ .struct_type = _struct_type, \
+ .offset = offsetof(struct _struct_name, _elname), \
+}
+
F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_urgent_sleep_time,
urgent_sleep_time);
F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_min_sleep_time, min_sleep_time);
@@ -396,6 +524,7 @@ F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_no_gc_sleep_time, no_gc_sleep_time);
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_idle, gc_mode);
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_urgent, gc_mode);
F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, reclaim_segments, rec_prefree_segments);
+F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, main_blkaddr, main_blkaddr);
F2FS_RW_ATTR(DCC_INFO, discard_cmd_control, max_small_discards, max_discards);
F2FS_RW_ATTR(DCC_INFO, discard_cmd_control, discard_granularity, discard_granularity);
F2FS_RW_ATTR(RESERVED_BLOCKS, f2fs_sb_info, reserved_blocks, reserved_blocks);
@@ -410,10 +539,17 @@ F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ram_thresh, ram_thresh);
F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ra_nid_pages, ra_nid_pages);
F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, dirty_nats_ratio, dirty_nats_ratio);
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, max_victim_search, max_victim_search);
+F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, migration_granularity, migration_granularity);
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, dir_level, dir_level);
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, cp_interval, interval_time[CP_TIME]);
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, idle_interval, interval_time[REQ_TIME]);
+F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, discard_idle_interval,
+ interval_time[DISCARD_TIME]);
+F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_idle_interval, interval_time[GC_TIME]);
+F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info,
+ umount_discard_timeout, interval_time[UMOUNT_DISCARD_TIMEOUT]);
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, iostat_enable, iostat_enable);
+F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, iostat_period_ms, iostat_period_ms);
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, readdir_ra, readdir_ra);
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_pin_file_thresh, gc_pin_file_threshold);
F2FS_RW_ATTR(F2FS_SBI, f2fs_super_block, extension_list, extension_list);
@@ -421,13 +557,29 @@ F2FS_RW_ATTR(F2FS_SBI, f2fs_super_block, extension_list, extension_list);
F2FS_RW_ATTR(FAULT_INFO_RATE, f2fs_fault_info, inject_rate, inject_rate);
F2FS_RW_ATTR(FAULT_INFO_TYPE, f2fs_fault_info, inject_type, inject_type);
#endif
+F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, data_io_flag, data_io_flag);
+F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, node_io_flag, node_io_flag);
F2FS_GENERAL_RO_ATTR(dirty_segments);
+F2FS_GENERAL_RO_ATTR(free_segments);
F2FS_GENERAL_RO_ATTR(lifetime_write_kbytes);
F2FS_GENERAL_RO_ATTR(features);
F2FS_GENERAL_RO_ATTR(current_reserved_blocks);
+F2FS_GENERAL_RO_ATTR(unusable);
+F2FS_GENERAL_RO_ATTR(encoding);
+F2FS_GENERAL_RO_ATTR(mounted_time_sec);
+#ifdef CONFIG_F2FS_STAT_FS
+F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, cp_foreground_calls, cp_count);
+F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, cp_background_calls, bg_cp_count);
+F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, gc_foreground_calls, call_count);
+F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, gc_background_calls, bg_gc);
+F2FS_GENERAL_RO_ATTR(moved_blocks_background);
+F2FS_GENERAL_RO_ATTR(moved_blocks_foreground);
+F2FS_GENERAL_RO_ATTR(avg_vblocks);
+#endif
-#ifdef CONFIG_F2FS_FS_ENCRYPTION
+#ifdef CONFIG_FS_ENCRYPTION
F2FS_FEATURE_RO_ATTR(encryption, FEAT_CRYPTO);
+F2FS_FEATURE_RO_ATTR(test_dummy_encryption_v2, FEAT_TEST_DUMMY_ENCRYPTION_V2);
#endif
#ifdef CONFIG_BLK_DEV_ZONED
F2FS_FEATURE_RO_ATTR(block_zoned, FEAT_BLKZONED);
@@ -440,6 +592,14 @@ F2FS_FEATURE_RO_ATTR(flexible_inline_xattr, FEAT_FLEXIBLE_INLINE_XATTR);
F2FS_FEATURE_RO_ATTR(quota_ino, FEAT_QUOTA_INO);
F2FS_FEATURE_RO_ATTR(inode_crtime, FEAT_INODE_CRTIME);
F2FS_FEATURE_RO_ATTR(lost_found, FEAT_LOST_FOUND);
+#ifdef CONFIG_FS_VERITY
+F2FS_FEATURE_RO_ATTR(verity, FEAT_VERITY);
+#endif
+F2FS_FEATURE_RO_ATTR(sb_checksum, FEAT_SB_CHECKSUM);
+F2FS_FEATURE_RO_ATTR(casefold, FEAT_CASEFOLD);
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+F2FS_FEATURE_RO_ATTR(compression, FEAT_COMPRESSION);
+#endif
#define ATTR_LIST(name) (&f2fs_attr_##name.attr)
static struct attribute *f2fs_attrs[] = {
@@ -450,6 +610,7 @@ static struct attribute *f2fs_attrs[] = {
ATTR_LIST(gc_idle),
ATTR_LIST(gc_urgent),
ATTR_LIST(reclaim_segments),
+ ATTR_LIST(main_blkaddr),
ATTR_LIST(max_small_discards),
ATTR_LIST(discard_granularity),
ATTR_LIST(batched_trim_sections),
@@ -460,13 +621,18 @@ static struct attribute *f2fs_attrs[] = {
ATTR_LIST(min_hot_blocks),
ATTR_LIST(min_ssr_sections),
ATTR_LIST(max_victim_search),
+ ATTR_LIST(migration_granularity),
ATTR_LIST(dir_level),
ATTR_LIST(ram_thresh),
ATTR_LIST(ra_nid_pages),
ATTR_LIST(dirty_nats_ratio),
ATTR_LIST(cp_interval),
ATTR_LIST(idle_interval),
+ ATTR_LIST(discard_idle_interval),
+ ATTR_LIST(gc_idle_interval),
+ ATTR_LIST(umount_discard_timeout),
ATTR_LIST(iostat_enable),
+ ATTR_LIST(iostat_period_ms),
ATTR_LIST(readdir_ra),
ATTR_LIST(gc_pin_file_thresh),
ATTR_LIST(extension_list),
@@ -474,17 +640,33 @@ static struct attribute *f2fs_attrs[] = {
ATTR_LIST(inject_rate),
ATTR_LIST(inject_type),
#endif
+ ATTR_LIST(data_io_flag),
+ ATTR_LIST(node_io_flag),
ATTR_LIST(dirty_segments),
+ ATTR_LIST(free_segments),
+ ATTR_LIST(unusable),
ATTR_LIST(lifetime_write_kbytes),
ATTR_LIST(features),
ATTR_LIST(reserved_blocks),
ATTR_LIST(current_reserved_blocks),
+ ATTR_LIST(encoding),
+ ATTR_LIST(mounted_time_sec),
+#ifdef CONFIG_F2FS_STAT_FS
+ ATTR_LIST(cp_foreground_calls),
+ ATTR_LIST(cp_background_calls),
+ ATTR_LIST(gc_foreground_calls),
+ ATTR_LIST(gc_background_calls),
+ ATTR_LIST(moved_blocks_foreground),
+ ATTR_LIST(moved_blocks_background),
+ ATTR_LIST(avg_vblocks),
+#endif
NULL,
};
static struct attribute *f2fs_feat_attrs[] = {
-#ifdef CONFIG_F2FS_FS_ENCRYPTION
+#ifdef CONFIG_FS_ENCRYPTION
ATTR_LIST(encryption),
+ ATTR_LIST(test_dummy_encryption_v2),
#endif
#ifdef CONFIG_BLK_DEV_ZONED
ATTR_LIST(block_zoned),
@@ -497,6 +679,14 @@ static struct attribute *f2fs_feat_attrs[] = {
ATTR_LIST(quota_ino),
ATTR_LIST(inode_crtime),
ATTR_LIST(lost_found),
+#ifdef CONFIG_FS_VERITY
+ ATTR_LIST(verity),
+#endif
+ ATTR_LIST(sb_checksum),
+ ATTR_LIST(casefold),
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+ ATTR_LIST(compression),
+#endif
NULL,
};
@@ -545,8 +735,7 @@ static int __maybe_unused segment_info_seq_show(struct seq_file *seq,
if ((i % 10) == 0)
seq_printf(seq, "%-10d", i);
- seq_printf(seq, "%d|%-3u", se->type,
- get_valid_blocks(sbi, i, false));
+ seq_printf(seq, "%d|%-3u", se->type, se->valid_blocks);
if ((i % 10) == 9 || i == (total_segs - 1))
seq_putc(seq, '\n');
else
@@ -572,8 +761,7 @@ static int __maybe_unused segment_bits_seq_show(struct seq_file *seq,
struct seg_entry *se = get_seg_entry(sbi, i);
seq_printf(seq, "%-10d", i);
- seq_printf(seq, "%d|%-3u|", se->type,
- get_valid_blocks(sbi, i, false));
+ seq_printf(seq, "%d|%-3u|", se->type, se->valid_blocks);
for (j = 0; j < SIT_VBLOCK_MAP_SIZE; j++)
seq_printf(seq, " %.2x", se->cur_valid_map[j]);
seq_putc(seq, '\n');
@@ -581,6 +769,33 @@ static int __maybe_unused segment_bits_seq_show(struct seq_file *seq,
return 0;
}
+void f2fs_record_iostat(struct f2fs_sb_info *sbi)
+{
+ unsigned long long iostat_diff[NR_IO_TYPE];
+ int i;
+
+ if (time_is_after_jiffies(sbi->iostat_next_period))
+ return;
+
+ /* Need double check under the lock */
+ spin_lock(&sbi->iostat_lock);
+ if (time_is_after_jiffies(sbi->iostat_next_period)) {
+ spin_unlock(&sbi->iostat_lock);
+ return;
+ }
+ sbi->iostat_next_period = jiffies +
+ msecs_to_jiffies(sbi->iostat_period_ms);
+
+ for (i = 0; i < NR_IO_TYPE; i++) {
+ iostat_diff[i] = sbi->rw_iostat[i] -
+ sbi->prev_rw_iostat[i];
+ sbi->prev_rw_iostat[i] = sbi->rw_iostat[i];
+ }
+ spin_unlock(&sbi->iostat_lock);
+
+ trace_f2fs_iostat(sbi, iostat_diff);
+}
+
static int __maybe_unused iostat_info_seq_show(struct seq_file *seq,
void *offset)
{
@@ -593,33 +808,58 @@ static int __maybe_unused iostat_info_seq_show(struct seq_file *seq,
seq_printf(seq, "time: %-16llu\n", now);
- /* print app IOs */
+ /* print app write IOs */
+ seq_puts(seq, "[WRITE]\n");
seq_printf(seq, "app buffered: %-16llu\n",
- sbi->write_iostat[APP_BUFFERED_IO]);
+ sbi->rw_iostat[APP_BUFFERED_IO]);
seq_printf(seq, "app direct: %-16llu\n",
- sbi->write_iostat[APP_DIRECT_IO]);
+ sbi->rw_iostat[APP_DIRECT_IO]);
seq_printf(seq, "app mapped: %-16llu\n",
- sbi->write_iostat[APP_MAPPED_IO]);
+ sbi->rw_iostat[APP_MAPPED_IO]);
- /* print fs IOs */
+ /* print fs write IOs */
seq_printf(seq, "fs data: %-16llu\n",
- sbi->write_iostat[FS_DATA_IO]);
+ sbi->rw_iostat[FS_DATA_IO]);
seq_printf(seq, "fs node: %-16llu\n",
- sbi->write_iostat[FS_NODE_IO]);
+ sbi->rw_iostat[FS_NODE_IO]);
seq_printf(seq, "fs meta: %-16llu\n",
- sbi->write_iostat[FS_META_IO]);
+ sbi->rw_iostat[FS_META_IO]);
seq_printf(seq, "fs gc data: %-16llu\n",
- sbi->write_iostat[FS_GC_DATA_IO]);
+ sbi->rw_iostat[FS_GC_DATA_IO]);
seq_printf(seq, "fs gc node: %-16llu\n",
- sbi->write_iostat[FS_GC_NODE_IO]);
+ sbi->rw_iostat[FS_GC_NODE_IO]);
seq_printf(seq, "fs cp data: %-16llu\n",
- sbi->write_iostat[FS_CP_DATA_IO]);
+ sbi->rw_iostat[FS_CP_DATA_IO]);
seq_printf(seq, "fs cp node: %-16llu\n",
- sbi->write_iostat[FS_CP_NODE_IO]);
+ sbi->rw_iostat[FS_CP_NODE_IO]);
seq_printf(seq, "fs cp meta: %-16llu\n",
- sbi->write_iostat[FS_CP_META_IO]);
+ sbi->rw_iostat[FS_CP_META_IO]);
+
+ /* print app read IOs */
+ seq_puts(seq, "[READ]\n");
+ seq_printf(seq, "app buffered: %-16llu\n",
+ sbi->rw_iostat[APP_BUFFERED_READ_IO]);
+ seq_printf(seq, "app direct: %-16llu\n",
+ sbi->rw_iostat[APP_DIRECT_READ_IO]);
+ seq_printf(seq, "app mapped: %-16llu\n",
+ sbi->rw_iostat[APP_MAPPED_READ_IO]);
+
+ /* print fs read IOs */
+ seq_printf(seq, "fs data: %-16llu\n",
+ sbi->rw_iostat[FS_DATA_READ_IO]);
+ seq_printf(seq, "fs gc data: %-16llu\n",
+ sbi->rw_iostat[FS_GDATA_READ_IO]);
+ seq_printf(seq, "fs compr_data: %-16llu\n",
+ sbi->rw_iostat[FS_CDATA_READ_IO]);
+ seq_printf(seq, "fs node: %-16llu\n",
+ sbi->rw_iostat[FS_NODE_READ_IO]);
+ seq_printf(seq, "fs meta: %-16llu\n",
+ sbi->rw_iostat[FS_META_READ_IO]);
+
+ /* print other IOs */
+ seq_puts(seq, "[OTHER]\n");
seq_printf(seq, "fs discard: %-16llu\n",
- sbi->write_iostat[FS_DISCARD]);
+ sbi->rw_iostat[FS_DISCARD]);
return 0;
}
diff --git a/fs/f2fs/trace.c b/fs/f2fs/trace.c
index 8ac1851..d0ab533 100644
--- a/fs/f2fs/trace.c
+++ b/fs/f2fs/trace.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* f2fs IO tracer
*
* Copyright (c) 2014 Motorola Mobility
* Copyright (c) 2014 Jaegeuk Kim <jaegeuk@kernel.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/fs.h>
#include <linux/f2fs_fs.h>
diff --git a/fs/f2fs/trace.h b/fs/f2fs/trace.h
index 67db24a..789f6aa 100644
--- a/fs/f2fs/trace.h
+++ b/fs/f2fs/trace.h
@@ -1,12 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* f2fs IO tracer
*
* Copyright (c) 2014 Motorola Mobility
* Copyright (c) 2014 Jaegeuk Kim <jaegeuk@kernel.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#ifndef __F2FS_TRACE_H__
#define __F2FS_TRACE_H__
diff --git a/fs/f2fs/verity.c b/fs/f2fs/verity.c
new file mode 100644
index 0000000..077ac83
--- /dev/null
+++ b/fs/f2fs/verity.c
@@ -0,0 +1,292 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * fs/f2fs/verity.c: fs-verity support for f2fs
+ *
+ * Copyright 2019 Google LLC
+ */
+
+/*
+ * Implementation of fsverity_operations for f2fs.
+ *
+ * Like ext4, f2fs stores the verity metadata (Merkle tree and
+ * fsverity_descriptor) past the end of the file, starting at the first 64K
+ * boundary beyond i_size. This approach works because (a) verity files are
+ * readonly, and (b) pages fully beyond i_size aren't visible to userspace but
+ * can be read/written internally by f2fs with only some relatively small
+ * changes to f2fs. Extended attributes cannot be used because (a) f2fs limits
+ * the total size of an inode's xattr entries to 4096 bytes, which wouldn't be
+ * enough for even a single Merkle tree block, and (b) f2fs encryption doesn't
+ * encrypt xattrs, yet the verity metadata *must* be encrypted when the file is
+ * because it contains hashes of the plaintext data.
+ *
+ * Using a 64K boundary rather than a 4K one keeps things ready for
+ * architectures with 64K pages, and it doesn't necessarily waste space on-disk
+ * since there can be a hole between i_size and the start of the Merkle tree.
+ */
+
+#include <linux/f2fs_fs.h>
+
+#include "f2fs.h"
+#include "xattr.h"
+
+static inline loff_t f2fs_verity_metadata_pos(const struct inode *inode)
+{
+ return round_up(inode->i_size, 65536);
+}
+
+/*
+ * Read some verity metadata from the inode. __vfs_read() can't be used because
+ * we need to read beyond i_size.
+ */
+static int pagecache_read(struct inode *inode, void *buf, size_t count,
+ loff_t pos)
+{
+ while (count) {
+ size_t n = min_t(size_t, count,
+ PAGE_SIZE - offset_in_page(pos));
+ struct page *page;
+ void *addr;
+
+ page = read_mapping_page(inode->i_mapping, pos >> PAGE_SHIFT,
+ NULL);
+ if (IS_ERR(page))
+ return PTR_ERR(page);
+
+ addr = kmap_atomic(page);
+ memcpy(buf, addr + offset_in_page(pos), n);
+ kunmap_atomic(addr);
+
+ put_page(page);
+
+ buf += n;
+ pos += n;
+ count -= n;
+ }
+ return 0;
+}
+
+/*
+ * Write some verity metadata to the inode for FS_IOC_ENABLE_VERITY.
+ * kernel_write() can't be used because the file descriptor is readonly.
+ */
+static int pagecache_write(struct inode *inode, const void *buf, size_t count,
+ loff_t pos)
+{
+ if (pos + count > inode->i_sb->s_maxbytes)
+ return -EFBIG;
+
+ while (count) {
+ size_t n = min_t(size_t, count,
+ PAGE_SIZE - offset_in_page(pos));
+ struct page *page;
+ void *fsdata;
+ void *addr;
+ int res;
+
+ res = pagecache_write_begin(NULL, inode->i_mapping, pos, n, 0,
+ &page, &fsdata);
+ if (res)
+ return res;
+
+ addr = kmap_atomic(page);
+ memcpy(addr + offset_in_page(pos), buf, n);
+ kunmap_atomic(addr);
+
+ res = pagecache_write_end(NULL, inode->i_mapping, pos, n, n,
+ page, fsdata);
+ if (res < 0)
+ return res;
+ if (res != n)
+ return -EIO;
+
+ buf += n;
+ pos += n;
+ count -= n;
+ }
+ return 0;
+}
+
+/*
+ * Format of f2fs verity xattr. This points to the location of the verity
+ * descriptor within the file data rather than containing it directly because
+ * the verity descriptor *must* be encrypted when f2fs encryption is used. But,
+ * f2fs encryption does not encrypt xattrs.
+ */
+struct fsverity_descriptor_location {
+ __le32 version;
+ __le32 size;
+ __le64 pos;
+};
+
+static int f2fs_begin_enable_verity(struct file *filp)
+{
+ struct inode *inode = file_inode(filp);
+ int err;
+
+ if (f2fs_verity_in_progress(inode))
+ return -EBUSY;
+
+ if (f2fs_is_atomic_file(inode) || f2fs_is_volatile_file(inode))
+ return -EOPNOTSUPP;
+
+ /*
+ * Since the file was opened readonly, we have to initialize the quotas
+ * here and not rely on ->open() doing it. This must be done before
+ * evicting the inline data.
+ */
+ err = dquot_initialize(inode);
+ if (err)
+ return err;
+
+ err = f2fs_convert_inline_inode(inode);
+ if (err)
+ return err;
+
+ set_inode_flag(inode, FI_VERITY_IN_PROGRESS);
+ return 0;
+}
+
+static int f2fs_end_enable_verity(struct file *filp, const void *desc,
+ size_t desc_size, u64 merkle_tree_size)
+{
+ struct inode *inode = file_inode(filp);
+ u64 desc_pos = f2fs_verity_metadata_pos(inode) + merkle_tree_size;
+ struct fsverity_descriptor_location dloc = {
+ .version = cpu_to_le32(1),
+ .size = cpu_to_le32(desc_size),
+ .pos = cpu_to_le64(desc_pos),
+ };
+ int err = 0;
+
+ if (desc != NULL) {
+ /* Succeeded; write the verity descriptor. */
+ err = pagecache_write(inode, desc, desc_size, desc_pos);
+
+ /* Write all pages before clearing FI_VERITY_IN_PROGRESS. */
+ if (!err)
+ err = filemap_write_and_wait(inode->i_mapping);
+ }
+
+ /* If we failed, truncate anything we wrote past i_size. */
+ if (desc == NULL || err)
+ f2fs_truncate(inode);
+
+ clear_inode_flag(inode, FI_VERITY_IN_PROGRESS);
+
+ if (desc != NULL && !err) {
+ err = f2fs_setxattr(inode, F2FS_XATTR_INDEX_VERITY,
+ F2FS_XATTR_NAME_VERITY, &dloc, sizeof(dloc),
+ NULL, XATTR_CREATE);
+ if (!err) {
+ file_set_verity(inode);
+ f2fs_set_inode_flags(inode);
+ f2fs_mark_inode_dirty_sync(inode, true);
+ }
+ }
+ return err;
+}
+
+static int f2fs_get_verity_descriptor(struct inode *inode, void *buf,
+ size_t buf_size)
+{
+ struct fsverity_descriptor_location dloc;
+ int res;
+ u32 size;
+ u64 pos;
+
+ /* Get the descriptor location */
+ res = f2fs_getxattr(inode, F2FS_XATTR_INDEX_VERITY,
+ F2FS_XATTR_NAME_VERITY, &dloc, sizeof(dloc), NULL);
+ if (res < 0 && res != -ERANGE)
+ return res;
+ if (res != sizeof(dloc) || dloc.version != cpu_to_le32(1)) {
+ f2fs_warn(F2FS_I_SB(inode), "unknown verity xattr format");
+ return -EINVAL;
+ }
+ size = le32_to_cpu(dloc.size);
+ pos = le64_to_cpu(dloc.pos);
+
+ /* Get the descriptor */
+ if (pos + size < pos || pos + size > inode->i_sb->s_maxbytes ||
+ pos < f2fs_verity_metadata_pos(inode) || size > INT_MAX) {
+ f2fs_warn(F2FS_I_SB(inode), "invalid verity xattr");
+ return -EFSCORRUPTED;
+ }
+ if (buf_size) {
+ if (size > buf_size)
+ return -ERANGE;
+ res = pagecache_read(inode, buf, size, pos);
+ if (res)
+ return res;
+ }
+ return size;
+}
+
+/*
+ * Prefetch some pages from the file's Merkle tree.
+ *
+ * This is basically a stripped-down version of __do_page_cache_readahead()
+ * which works on pages past i_size.
+ */
+static void f2fs_merkle_tree_readahead(struct address_space *mapping,
+ pgoff_t start_index, unsigned long count)
+{
+ LIST_HEAD(pages);
+ unsigned int nr_pages = 0;
+ struct page *page;
+ pgoff_t index;
+ struct blk_plug plug;
+
+ for (index = start_index; index < start_index + count; index++) {
+ rcu_read_lock();
+ page = radix_tree_lookup(&mapping->i_pages, index);
+ rcu_read_unlock();
+ if (!page || radix_tree_exceptional_entry(page)) {
+ page = __page_cache_alloc(readahead_gfp_mask(mapping));
+ if (!page)
+ break;
+ page->index = index;
+ list_add(&page->lru, &pages);
+ nr_pages++;
+ }
+ }
+ blk_start_plug(&plug);
+ f2fs_mpage_readpages(mapping, &pages, NULL, nr_pages, true);
+ blk_finish_plug(&plug);
+}
+
+static struct page *f2fs_read_merkle_tree_page(struct inode *inode,
+ pgoff_t index,
+ unsigned long num_ra_pages)
+{
+ struct page *page;
+
+ index += f2fs_verity_metadata_pos(inode) >> PAGE_SHIFT;
+
+ page = find_get_page_flags(inode->i_mapping, index, FGP_ACCESSED);
+ if (!page || !PageUptodate(page)) {
+ if (page)
+ put_page(page);
+ else if (num_ra_pages > 1)
+ f2fs_merkle_tree_readahead(inode->i_mapping, index,
+ num_ra_pages);
+ page = read_mapping_page(inode->i_mapping, index, NULL);
+ }
+ return page;
+}
+
+static int f2fs_write_merkle_tree_block(struct inode *inode, const void *buf,
+ u64 index, int log_blocksize)
+{
+ loff_t pos = f2fs_verity_metadata_pos(inode) + (index << log_blocksize);
+
+ return pagecache_write(inode, buf, 1 << log_blocksize, pos);
+}
+
+const struct fsverity_operations f2fs_verityops = {
+ .begin_enable_verity = f2fs_begin_enable_verity,
+ .end_enable_verity = f2fs_end_enable_verity,
+ .get_verity_descriptor = f2fs_get_verity_descriptor,
+ .read_merkle_tree_page = f2fs_read_merkle_tree_page,
+ .write_merkle_tree_block = f2fs_write_merkle_tree_block,
+};
diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index 201e9da..4f6582e 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* fs/f2fs/xattr.c
*
@@ -13,10 +14,6 @@
* suggestion of Luka Renko <luka.renko@hermes.si>.
* xattr consolidation Copyright (c) 2004 James Morris <jmorris@redhat.com>,
* Red Hat Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/rwsem.h>
#include <linux/f2fs_fs.h>
@@ -24,6 +21,26 @@
#include <linux/posix_acl_xattr.h>
#include "f2fs.h"
#include "xattr.h"
+#include "segment.h"
+
+static void *xattr_alloc(struct f2fs_sb_info *sbi, int size, bool *is_inline)
+{
+ if (likely(size == sbi->inline_xattr_slab_size)) {
+ *is_inline = true;
+ return kmem_cache_zalloc(sbi->inline_xattr_slab, GFP_NOFS);
+ }
+ *is_inline = false;
+ return f2fs_kzalloc(sbi, size, GFP_NOFS);
+}
+
+static void xattr_free(struct f2fs_sb_info *sbi, void *xattr_addr,
+ bool is_inline)
+{
+ if (is_inline)
+ kmem_cache_free(sbi->inline_xattr_slab, xattr_addr);
+ else
+ kvfree(xattr_addr);
+}
static int f2fs_xattr_generic_get(const struct xattr_handler *handler,
struct dentry *unused, struct inode *inode,
@@ -303,7 +320,8 @@ static int read_xattr_block(struct inode *inode, void *txattr_addr)
static int lookup_all_xattrs(struct inode *inode, struct page *ipage,
unsigned int index, unsigned int len,
const char *name, struct f2fs_xattr_entry **xe,
- void **base_addr, int *base_size)
+ void **base_addr, int *base_size,
+ bool *is_inline)
{
void *cur_addr, *txattr_addr, *last_txattr_addr;
void *last_addr = NULL;
@@ -314,12 +332,12 @@ static int lookup_all_xattrs(struct inode *inode, struct page *ipage,
if (!xnid && !inline_size)
return -ENODATA;
- *base_size = XATTR_SIZE(xnid, inode) + XATTR_PADDING_SIZE;
- txattr_addr = f2fs_kzalloc(F2FS_I_SB(inode), *base_size, GFP_NOFS);
+ *base_size = XATTR_SIZE(inode) + XATTR_PADDING_SIZE;
+ txattr_addr = xattr_alloc(F2FS_I_SB(inode), *base_size, is_inline);
if (!txattr_addr)
return -ENOMEM;
- last_txattr_addr = (void *)txattr_addr + XATTR_SIZE(xnid, inode);
+ last_txattr_addr = (void *)txattr_addr + XATTR_SIZE(inode);
/* read from inline xattr */
if (inline_size) {
@@ -349,6 +367,9 @@ static int lookup_all_xattrs(struct inode *inode, struct page *ipage,
*xe = __find_xattr(cur_addr, last_txattr_addr, index, len, name);
if (!*xe) {
+ f2fs_err(F2FS_I_SB(inode), "inode (%lu) has corrupted xattr",
+ inode->i_ino);
+ set_sbi_flag(F2FS_I_SB(inode), SBI_NEED_FSCK);
err = -EFSCORRUPTED;
goto out;
}
@@ -361,7 +382,7 @@ static int lookup_all_xattrs(struct inode *inode, struct page *ipage,
*base_addr = txattr_addr;
return 0;
out:
- kzfree(txattr_addr);
+ xattr_free(F2FS_I_SB(inode), txattr_addr, *is_inline);
return err;
}
@@ -404,7 +425,7 @@ static int read_all_xattrs(struct inode *inode, struct page *ipage,
*base_addr = txattr_addr;
return 0;
fail:
- kzfree(txattr_addr);
+ kvfree(txattr_addr);
return err;
}
@@ -438,7 +459,7 @@ static inline int write_all_xattrs(struct inode *inode, __u32 hsize,
}
f2fs_wait_on_page_writeback(ipage ? ipage : in_page,
- NODE, true);
+ NODE, true, true);
/* no need to use xattr node block */
if (hsize <= inline_size) {
err = f2fs_truncate_xattr_node(inode);
@@ -462,7 +483,7 @@ static inline int write_all_xattrs(struct inode *inode, __u32 hsize,
goto in_page_out;
}
f2fs_bug_on(sbi, new_nid);
- f2fs_wait_on_page_writeback(xpage, NODE, true);
+ f2fs_wait_on_page_writeback(xpage, NODE, true, true);
} else {
struct dnode_of_data dn;
set_new_dnode(&dn, inode, NULL, NULL, new_nid);
@@ -498,6 +519,7 @@ int f2fs_getxattr(struct inode *inode, int index, const char *name,
unsigned int size, len;
void *base_addr = NULL;
int base_size;
+ bool is_inline;
if (name == NULL)
return -EINVAL;
@@ -508,7 +530,7 @@ int f2fs_getxattr(struct inode *inode, int index, const char *name,
down_read(&F2FS_I(inode)->i_xattr_sem);
error = lookup_all_xattrs(inode, ipage, index, len, name,
- &entry, &base_addr, &base_size);
+ &entry, &base_addr, &base_size, &is_inline);
up_read(&F2FS_I(inode)->i_xattr_sem);
if (error)
return error;
@@ -531,14 +553,13 @@ int f2fs_getxattr(struct inode *inode, int index, const char *name,
}
error = size;
out:
- kzfree(base_addr);
+ xattr_free(F2FS_I_SB(inode), base_addr, is_inline);
return error;
}
ssize_t f2fs_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size)
{
struct inode *inode = d_inode(dentry);
- nid_t xnid = F2FS_I(inode)->i_xattr_nid;
struct f2fs_xattr_entry *entry;
void *base_addr, *last_base_addr;
int error = 0;
@@ -550,7 +571,7 @@ ssize_t f2fs_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size)
if (error)
return error;
- last_base_addr = (void *)base_addr + XATTR_SIZE(xnid, inode);
+ last_base_addr = (void *)base_addr + XATTR_SIZE(inode);
list_for_each_xattr(entry, base_addr) {
const struct xattr_handler *handler =
@@ -561,9 +582,8 @@ ssize_t f2fs_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size)
if ((void *)(entry) + sizeof(__u32) > last_base_addr ||
(void *)XATTR_NEXT_ENTRY(entry) > last_base_addr) {
- f2fs_msg(dentry->d_sb, KERN_ERR,
- "inode (%lu) has corrupted xattr",
- inode->i_ino);
+ f2fs_err(F2FS_I_SB(inode), "inode (%lu) has corrupted xattr",
+ inode->i_ino);
set_sbi_flag(F2FS_I_SB(inode), SBI_NEED_FSCK);
error = -EFSCORRUPTED;
goto cleanup;
@@ -572,7 +592,7 @@ ssize_t f2fs_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size)
if (!handler || (handler->list && !handler->list(dentry)))
continue;
- prefix = handler->prefix ?: handler->name;
+ prefix = xattr_prefix(handler);
prefix_len = strlen(prefix);
size = prefix_len + entry->e_name_len + 1;
if (buffer) {
@@ -590,7 +610,7 @@ ssize_t f2fs_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size)
}
error = buffer_size - rest;
cleanup:
- kzfree(base_addr);
+ kvfree(base_addr);
return error;
}
@@ -609,7 +629,6 @@ static int __f2fs_setxattr(struct inode *inode, int index,
{
struct f2fs_xattr_entry *here, *last;
void *base_addr, *last_base_addr;
- nid_t xnid = F2FS_I(inode)->i_xattr_nid;
int found, newsize;
size_t len;
__u32 new_hsize;
@@ -633,11 +652,14 @@ static int __f2fs_setxattr(struct inode *inode, int index,
if (error)
return error;
- last_base_addr = (void *)base_addr + XATTR_SIZE(xnid, inode);
+ last_base_addr = (void *)base_addr + XATTR_SIZE(inode);
/* find entry with wanted name. */
here = __find_xattr(base_addr, last_base_addr, index, len, name);
if (!here) {
+ f2fs_err(F2FS_I_SB(inode), "inode (%lu) has corrupted xattr",
+ inode->i_ino);
+ set_sbi_flag(F2FS_I_SB(inode), SBI_NEED_FSCK);
error = -EFSCORRUPTED;
goto exit;
}
@@ -728,7 +750,7 @@ static int __f2fs_setxattr(struct inode *inode, int index,
if (!error && S_ISDIR(inode->i_mode))
set_sbi_flag(F2FS_I_SB(inode), SBI_NEED_CP);
exit:
- kzfree(base_addr);
+ kvfree(base_addr);
return error;
}
@@ -739,6 +761,11 @@ int f2fs_setxattr(struct inode *inode, int index, const char *name,
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
int err;
+ if (unlikely(f2fs_cp_error(sbi)))
+ return -EIO;
+ if (!f2fs_is_checkpoint_ready(sbi))
+ return -ENOSPC;
+
err = dquot_initialize(inode);
if (err)
return err;
@@ -750,14 +777,34 @@ int f2fs_setxattr(struct inode *inode, int index, const char *name,
f2fs_balance_fs(sbi, true);
f2fs_lock_op(sbi);
- /* protect xattr_ver */
- down_write(&F2FS_I(inode)->i_sem);
down_write(&F2FS_I(inode)->i_xattr_sem);
err = __f2fs_setxattr(inode, index, name, value, size, ipage, flags);
up_write(&F2FS_I(inode)->i_xattr_sem);
- up_write(&F2FS_I(inode)->i_sem);
f2fs_unlock_op(sbi);
f2fs_update_time(sbi, REQ_TIME);
return err;
}
+
+int f2fs_init_xattr_caches(struct f2fs_sb_info *sbi)
+{
+ dev_t dev = sbi->sb->s_bdev->bd_dev;
+ char slab_name[32];
+
+ sprintf(slab_name, "f2fs_xattr_entry-%u:%u", MAJOR(dev), MINOR(dev));
+
+ sbi->inline_xattr_slab_size = F2FS_OPTION(sbi).inline_xattr_size *
+ sizeof(__le32) + XATTR_PADDING_SIZE;
+
+ sbi->inline_xattr_slab = f2fs_kmem_cache_create(slab_name,
+ sbi->inline_xattr_slab_size);
+ if (!sbi->inline_xattr_slab)
+ return -ENOMEM;
+
+ return 0;
+}
+
+void f2fs_destroy_xattr_caches(struct f2fs_sb_info *sbi)
+{
+ kmem_cache_destroy(sbi->inline_xattr_slab);
+}
diff --git a/fs/f2fs/xattr.h b/fs/f2fs/xattr.h
index 2a4ecaf..416d6527 100644
--- a/fs/f2fs/xattr.h
+++ b/fs/f2fs/xattr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* fs/f2fs/xattr.h
*
@@ -9,10 +10,6 @@
* On-disk format of extended attributes for the ext2 filesystem.
*
* (C) 2001 Andreas Gruenbacher, <a.gruenbacher@computer.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#ifndef __F2FS_XATTR_H__
#define __F2FS_XATTR_H__
@@ -37,8 +34,10 @@
#define F2FS_XATTR_INDEX_ADVISE 7
/* Should be same as EXT4_XATTR_INDEX_ENCRYPTION */
#define F2FS_XATTR_INDEX_ENCRYPTION 9
+#define F2FS_XATTR_INDEX_VERITY 11
#define F2FS_XATTR_NAME_ENCRYPTION_CONTEXT "c"
+#define F2FS_XATTR_NAME_VERITY "v"
struct f2fs_xattr_header {
__le32 h_magic; /* magic number for identification */
@@ -50,7 +49,7 @@ struct f2fs_xattr_entry {
__u8 e_name_index;
__u8 e_name_len;
__le16 e_value_size; /* size of attribute value */
- char e_name[0]; /* attribute name */
+ char e_name[]; /* attribute name */
};
#define XATTR_HDR(ptr) ((struct f2fs_xattr_header *)(ptr))
@@ -74,7 +73,8 @@ struct f2fs_xattr_entry {
entry = XATTR_NEXT_ENTRY(entry))
#define VALID_XATTR_BLOCK_SIZE (PAGE_SIZE - sizeof(struct node_footer))
#define XATTR_PADDING_SIZE (sizeof(__u32))
-#define XATTR_SIZE(x,i) (((x) ? VALID_XATTR_BLOCK_SIZE : 0) + \
+#define XATTR_SIZE(i) ((F2FS_I(i)->i_xattr_nid ? \
+ VALID_XATTR_BLOCK_SIZE : 0) + \
(inline_xattr_size(i)))
#define MIN_OFFSET(i) XATTR_ALIGN(inline_xattr_size(i) + \
VALID_XATTR_BLOCK_SIZE)
@@ -83,6 +83,12 @@ struct f2fs_xattr_entry {
sizeof(struct f2fs_xattr_header) - \
sizeof(struct f2fs_xattr_entry))
+#define MAX_INLINE_XATTR_SIZE \
+ (DEF_ADDRS_PER_INODE - \
+ F2FS_TOTAL_EXTRA_ATTR_SIZE / sizeof(__le32) - \
+ DEF_INLINE_RESERVED_SIZE - \
+ MIN_INLINE_DENTRY_SIZE / sizeof(__le32))
+
/*
* On-disk structure of f2fs_xattr
* We use inline xattrs space + 1 block for xattr.
@@ -125,9 +131,12 @@ extern int f2fs_setxattr(struct inode *, int, const char *,
extern int f2fs_getxattr(struct inode *, int, const char *, void *,
size_t, struct page *);
extern ssize_t f2fs_listxattr(struct dentry *, char *, size_t);
+extern int f2fs_init_xattr_caches(struct f2fs_sb_info *);
+extern void f2fs_destroy_xattr_caches(struct f2fs_sb_info *);
#else
#define f2fs_xattr_handlers NULL
+#define f2fs_listxattr NULL
static inline int f2fs_setxattr(struct inode *inode, int index,
const char *name, const void *value, size_t size,
struct page *page, int flags)
@@ -140,11 +149,8 @@ static inline int f2fs_getxattr(struct inode *inode, int index,
{
return -EOPNOTSUPP;
}
-static inline ssize_t f2fs_listxattr(struct dentry *dentry, char *buffer,
- size_t buffer_size)
-{
- return -EOPNOTSUPP;
-}
+static inline int f2fs_init_xattr_caches(struct f2fs_sb_info *sbi) { return 0; }
+static inline void f2fs_destroy_xattr_caches(struct f2fs_sb_info *sbi) { }
#endif
#ifdef CONFIG_F2FS_FS_SECURITY
diff --git a/fs/fuse/OWNERS b/fs/fuse/OWNERS
new file mode 100644
index 0000000..6c04da7
--- /dev/null
+++ b/fs/fuse/OWNERS
@@ -0,0 +1,2 @@
+# include OWNERS from the authoritative android-mainline branch
+include kernel/common:android-mainline:/fs/fuse/OWNERS
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 8b22f8705..cadc117 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -14,6 +14,7 @@
#include <linux/sched/signal.h>
#include <linux/uio.h>
#include <linux/miscdevice.h>
+#include <linux/namei.h>
#include <linux/pagemap.h>
#include <linux/file.h>
#include <linux/slab.h>
@@ -573,6 +574,7 @@ ssize_t fuse_simple_request(struct fuse_conn *fc, struct fuse_args *args)
req->out.numargs = args->out.numargs;
memcpy(req->out.args, args->out.args,
args->out.numargs * sizeof(struct fuse_arg));
+ req->out.canonical_path = args->out.canonical_path;
fuse_request_send(fc, req);
ret = req->out.h.error;
if (!ret && args->out.argvar) {
@@ -1941,6 +1943,13 @@ static ssize_t fuse_dev_do_write(struct fuse_dev *fud,
err = copy_out_args(cs, &req->out, nbytes);
fuse_copy_finish(cs);
+ if (!err && req->in.h.opcode == FUSE_CANONICAL_PATH) {
+ char *path = (char *)req->out.args[0].value;
+
+ path[req->out.args[0].size - 1] = 0;
+ req->out.h.error = kern_path(path, 0, req->out.canonical_path);
+ }
+
spin_lock(&fpq->lock);
clear_bit(FR_LOCKED, &req->flags);
if (!fpq->connected)
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 6244345..90bd6c0 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -281,10 +281,49 @@ static void fuse_dentry_release(struct dentry *dentry)
kfree_rcu(fd, rcu);
}
+/*
+ * Get the canonical path. Since we must translate to a path, this must be done
+ * in the context of the userspace daemon, however, the userspace daemon cannot
+ * look up paths on its own. Instead, we handle the lookup as a special case
+ * inside of the write request.
+ */
+static void fuse_dentry_canonical_path(const struct path *path,
+ struct path *canonical_path)
+{
+ struct inode *inode = d_inode(path->dentry);
+ struct fuse_conn *fc = get_fuse_conn(inode);
+ FUSE_ARGS(args);
+ char *path_name;
+ int err;
+
+ path_name = (char *)__get_free_page(GFP_KERNEL);
+ if (!path_name)
+ goto default_path;
+
+ args.in.h.opcode = FUSE_CANONICAL_PATH;
+ args.in.h.nodeid = get_node_id(inode);
+ args.in.numargs = 0;
+ args.out.numargs = 1;
+ args.out.args[0].size = PATH_MAX;
+ args.out.args[0].value = path_name;
+ args.out.argvar = 1;
+ args.out.canonical_path = canonical_path;
+
+ err = fuse_simple_request(fc, &args);
+ free_page((unsigned long)path_name);
+ if (err > 0)
+ return;
+default_path:
+ canonical_path->dentry = path->dentry;
+ canonical_path->mnt = path->mnt;
+ path_get(canonical_path);
+}
+
const struct dentry_operations fuse_dentry_operations = {
.d_revalidate = fuse_dentry_revalidate,
.d_init = fuse_dentry_init,
.d_release = fuse_dentry_release,
+ .d_canonical_path = fuse_dentry_canonical_path,
};
const struct dentry_operations fuse_root_dentry_operations = {
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index dbfc35e..123f878 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -213,6 +213,9 @@ struct fuse_out {
/** Array of arguments */
struct fuse_arg args[2];
+
+ /* Path used for completing d_canonical_path */
+ struct path *canonical_path;
};
/** FUSE page descriptor */
@@ -235,6 +238,9 @@ struct fuse_args {
unsigned argvar:1;
unsigned numargs;
struct fuse_arg args[2];
+
+ /* Path used for completing d_canonical_path */
+ struct path *canonical_path;
} out;
};
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index b313627..806573e 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -528,7 +528,7 @@ static long hugetlbfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
inode_lock(inode);
/* protected by i_mutex */
- if (info->seals & F_SEAL_WRITE) {
+ if (info->seals & (F_SEAL_WRITE | F_SEAL_FUTURE_WRITE)) {
inode_unlock(inode);
return -EPERM;
}
diff --git a/fs/incfs/Kconfig b/fs/incfs/Kconfig
new file mode 100644
index 0000000..1ffe31a
--- /dev/null
+++ b/fs/incfs/Kconfig
@@ -0,0 +1,18 @@
+config INCREMENTAL_FS
+ tristate "Incremental file system support"
+ depends on BLOCK
+ select DECOMPRESS_LZ4
+ select CRC32
+ select CRYPTO
+ select CRYPTO_RSA
+ select CRYPTO_SHA256
+ select X509_CERTIFICATE_PARSER
+ select ASYMMETRIC_KEY_TYPE
+ select ASYMMETRIC_PUBLIC_KEY_SUBTYPE
+ help
+ Incremental FS is a read-only virtual file system that facilitates execution
+ of programs while their binaries are still being lazily downloaded over the
+ network, USB or pigeon post.
+
+ To compile this file system support as a module, choose M here: the
+ module will be called incrementalfs.
diff --git a/fs/incfs/Makefile b/fs/incfs/Makefile
new file mode 100644
index 0000000..8d734bf
--- /dev/null
+++ b/fs/incfs/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_INCREMENTAL_FS) += incrementalfs.o
+
+incrementalfs-y := \
+ data_mgmt.o \
+ format.o \
+ integrity.o \
+ main.o \
+ vfs.o
diff --git a/fs/incfs/OWNERS b/fs/incfs/OWNERS
new file mode 100644
index 0000000..17131f3
--- /dev/null
+++ b/fs/incfs/OWNERS
@@ -0,0 +1,2 @@
+# include OWNERS from the authoritative android-mainline branch
+include kernel/common:android-mainline:/fs/incfs/OWNERS
diff --git a/fs/incfs/data_mgmt.c b/fs/incfs/data_mgmt.c
new file mode 100644
index 0000000..e0705be
--- /dev/null
+++ b/fs/incfs/data_mgmt.c
@@ -0,0 +1,1426 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2019 Google LLC
+ */
+#include <linux/crc32.h>
+#include <linux/file.h>
+#include <linux/gfp.h>
+#include <linux/ktime.h>
+#include <linux/lz4.h>
+#include <linux/mm.h>
+#include <linux/pagemap.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/workqueue.h>
+
+#include "data_mgmt.h"
+#include "format.h"
+#include "integrity.h"
+
+static void log_wake_up_all(struct work_struct *work)
+{
+ struct delayed_work *dw = container_of(work, struct delayed_work, work);
+ struct read_log *rl = container_of(dw, struct read_log, ml_wakeup_work);
+ wake_up_all(&rl->ml_notif_wq);
+}
+
+struct mount_info *incfs_alloc_mount_info(struct super_block *sb,
+ struct mount_options *options,
+ struct path *backing_dir_path)
+{
+ struct mount_info *mi = NULL;
+ int error = 0;
+
+ mi = kzalloc(sizeof(*mi), GFP_NOFS);
+ if (!mi)
+ return ERR_PTR(-ENOMEM);
+
+ mi->mi_sb = sb;
+ mi->mi_backing_dir_path = *backing_dir_path;
+ mi->mi_owner = get_current_cred();
+ path_get(&mi->mi_backing_dir_path);
+ mutex_init(&mi->mi_dir_struct_mutex);
+ mutex_init(&mi->mi_pending_reads_mutex);
+ init_waitqueue_head(&mi->mi_pending_reads_notif_wq);
+ init_waitqueue_head(&mi->mi_log.ml_notif_wq);
+ INIT_DELAYED_WORK(&mi->mi_log.ml_wakeup_work, log_wake_up_all);
+ spin_lock_init(&mi->mi_log.rl_lock);
+ INIT_LIST_HEAD(&mi->mi_reads_list_head);
+
+ error = incfs_realloc_mount_info(mi, options);
+ if (error)
+ goto err;
+
+ return mi;
+
+err:
+ incfs_free_mount_info(mi);
+ return ERR_PTR(error);
+}
+
+int incfs_realloc_mount_info(struct mount_info *mi,
+ struct mount_options *options)
+{
+ void *new_buffer = NULL;
+ void *old_buffer;
+ size_t new_buffer_size = 0;
+
+ if (options->read_log_pages != mi->mi_options.read_log_pages) {
+ struct read_log_state log_state;
+ /*
+ * Even though having two buffers allocated at once isn't
+ * usually good, allocating a multipage buffer under a spinlock
+ * is even worse, so let's optimize for the shorter lock
+ * duration. It's not end of the world if we fail to increase
+ * the buffer size anyway.
+ */
+ if (options->read_log_pages > 0) {
+ new_buffer_size = PAGE_SIZE * options->read_log_pages;
+ new_buffer = kzalloc(new_buffer_size, GFP_NOFS);
+ if (!new_buffer)
+ return -ENOMEM;
+ }
+
+ spin_lock(&mi->mi_log.rl_lock);
+ old_buffer = mi->mi_log.rl_ring_buf;
+ mi->mi_log.rl_ring_buf = new_buffer;
+ mi->mi_log.rl_size = new_buffer_size;
+ log_state = (struct read_log_state){
+ .generation_id = mi->mi_log.rl_head.generation_id + 1,
+ };
+ mi->mi_log.rl_head = log_state;
+ mi->mi_log.rl_tail = log_state;
+ spin_unlock(&mi->mi_log.rl_lock);
+
+ kfree(old_buffer);
+ }
+
+ mi->mi_options = *options;
+ return 0;
+}
+
+void incfs_free_mount_info(struct mount_info *mi)
+{
+ if (!mi)
+ return;
+
+ flush_delayed_work(&mi->mi_log.ml_wakeup_work);
+
+ dput(mi->mi_index_dir);
+ path_put(&mi->mi_backing_dir_path);
+ mutex_destroy(&mi->mi_dir_struct_mutex);
+ mutex_destroy(&mi->mi_pending_reads_mutex);
+ put_cred(mi->mi_owner);
+ kfree(mi->mi_log.rl_ring_buf);
+ kfree(mi->log_xattr);
+ kfree(mi->pending_read_xattr);
+ kfree(mi);
+}
+
+static void data_file_segment_init(struct data_file_segment *segment)
+{
+ init_waitqueue_head(&segment->new_data_arrival_wq);
+ mutex_init(&segment->blockmap_mutex);
+ INIT_LIST_HEAD(&segment->reads_list_head);
+}
+
+static void data_file_segment_destroy(struct data_file_segment *segment)
+{
+ mutex_destroy(&segment->blockmap_mutex);
+}
+
+struct data_file *incfs_open_data_file(struct mount_info *mi, struct file *bf)
+{
+ struct data_file *df = NULL;
+ struct backing_file_context *bfc = NULL;
+ int md_records;
+ u64 size;
+ int error = 0;
+ int i;
+
+ if (!bf || !mi)
+ return ERR_PTR(-EFAULT);
+
+ if (!S_ISREG(bf->f_inode->i_mode))
+ return ERR_PTR(-EBADF);
+
+ bfc = incfs_alloc_bfc(mi, bf);
+ if (IS_ERR(bfc))
+ return ERR_CAST(bfc);
+
+ df = kzalloc(sizeof(*df), GFP_NOFS);
+ if (!df) {
+ error = -ENOMEM;
+ goto out;
+ }
+
+ df->df_backing_file_context = bfc;
+ df->df_mount_info = mi;
+ for (i = 0; i < ARRAY_SIZE(df->df_segments); i++)
+ data_file_segment_init(&df->df_segments[i]);
+
+ error = mutex_lock_interruptible(&bfc->bc_mutex);
+ if (error)
+ goto out;
+ error = incfs_read_file_header(bfc, &df->df_metadata_off, &df->df_id,
+ &size, &df->df_header_flags);
+ mutex_unlock(&bfc->bc_mutex);
+
+ if (error)
+ goto out;
+
+ df->df_size = size;
+ if (size > 0)
+ df->df_data_block_count = get_blocks_count_for_size(size);
+
+ md_records = incfs_scan_metadata_chain(df);
+ if (md_records < 0)
+ error = md_records;
+
+out:
+ if (error) {
+ incfs_free_bfc(bfc);
+ if (df)
+ df->df_backing_file_context = NULL;
+ incfs_free_data_file(df);
+ return ERR_PTR(error);
+ }
+ return df;
+}
+
+void incfs_free_data_file(struct data_file *df)
+{
+ int i;
+
+ if (!df)
+ return;
+
+ incfs_free_mtree(df->df_hash_tree);
+ for (i = 0; i < ARRAY_SIZE(df->df_segments); i++)
+ data_file_segment_destroy(&df->df_segments[i]);
+ incfs_free_bfc(df->df_backing_file_context);
+ kfree(df->df_signature);
+ kfree(df);
+}
+
+int make_inode_ready_for_data_ops(struct mount_info *mi,
+ struct inode *inode,
+ struct file *backing_file)
+{
+ struct inode_info *node = get_incfs_node(inode);
+ struct data_file *df = NULL;
+ int err = 0;
+
+ inode_lock(inode);
+ if (S_ISREG(inode->i_mode)) {
+ if (!node->n_file) {
+ df = incfs_open_data_file(mi, backing_file);
+
+ if (IS_ERR(df))
+ err = PTR_ERR(df);
+ else
+ node->n_file = df;
+ }
+ } else
+ err = -EBADF;
+ inode_unlock(inode);
+ return err;
+}
+
+struct dir_file *incfs_open_dir_file(struct mount_info *mi, struct file *bf)
+{
+ struct dir_file *dir = NULL;
+
+ if (!S_ISDIR(bf->f_inode->i_mode))
+ return ERR_PTR(-EBADF);
+
+ dir = kzalloc(sizeof(*dir), GFP_NOFS);
+ if (!dir)
+ return ERR_PTR(-ENOMEM);
+
+ dir->backing_dir = get_file(bf);
+ dir->mount_info = mi;
+ return dir;
+}
+
+void incfs_free_dir_file(struct dir_file *dir)
+{
+ if (!dir)
+ return;
+ if (dir->backing_dir)
+ fput(dir->backing_dir);
+ kfree(dir);
+}
+
+static ssize_t decompress(struct mem_range src, struct mem_range dst)
+{
+ int result = LZ4_decompress_safe(src.data, dst.data, src.len, dst.len);
+
+ if (result < 0)
+ return -EBADMSG;
+
+ return result;
+}
+
+static void log_read_one_record(struct read_log *rl, struct read_log_state *rs)
+{
+ union log_record *record =
+ (union log_record *)((u8 *)rl->rl_ring_buf + rs->next_offset);
+ size_t record_size;
+
+ switch (record->full_record.type) {
+ case FULL:
+ rs->base_record = record->full_record;
+ record_size = sizeof(record->full_record);
+ break;
+
+ case SAME_FILE:
+ rs->base_record.block_index =
+ record->same_file_record.block_index;
+ rs->base_record.absolute_ts_us +=
+ record->same_file_record.relative_ts_us;
+ record_size = sizeof(record->same_file_record);
+ break;
+
+ case SAME_FILE_NEXT_BLOCK:
+ ++rs->base_record.block_index;
+ rs->base_record.absolute_ts_us +=
+ record->same_file_next_block.relative_ts_us;
+ record_size = sizeof(record->same_file_next_block);
+ break;
+
+ case SAME_FILE_NEXT_BLOCK_SHORT:
+ ++rs->base_record.block_index;
+ rs->base_record.absolute_ts_us +=
+ record->same_file_next_block_short.relative_ts_us;
+ record_size = sizeof(record->same_file_next_block_short);
+ break;
+ }
+
+ rs->next_offset += record_size;
+ if (rs->next_offset > rl->rl_size - sizeof(*record)) {
+ rs->next_offset = 0;
+ ++rs->current_pass_no;
+ }
+ ++rs->current_record_no;
+}
+
+static void log_block_read(struct mount_info *mi, incfs_uuid_t *id,
+ int block_index)
+{
+ struct read_log *log = &mi->mi_log;
+ struct read_log_state *head, *tail;
+ s64 now_us;
+ s64 relative_us;
+ union log_record record;
+ size_t record_size;
+
+ /*
+ * This may read the old value, but it's OK to delay the logging start
+ * right after the configuration update.
+ */
+ if (READ_ONCE(log->rl_size) == 0)
+ return;
+
+ now_us = ktime_to_us(ktime_get());
+
+ spin_lock(&log->rl_lock);
+ if (log->rl_size == 0) {
+ spin_unlock(&log->rl_lock);
+ return;
+ }
+
+ head = &log->rl_head;
+ tail = &log->rl_tail;
+ relative_us = now_us - head->base_record.absolute_ts_us;
+
+ if (memcmp(id, &head->base_record.file_id, sizeof(incfs_uuid_t)) ||
+ relative_us >= 1ll << 32) {
+ record.full_record = (struct full_record){
+ .type = FULL,
+ .block_index = block_index,
+ .file_id = *id,
+ .absolute_ts_us = now_us,
+ };
+ head->base_record.file_id = *id;
+ record_size = sizeof(struct full_record);
+ } else if (block_index != head->base_record.block_index + 1 ||
+ relative_us >= 1 << 30) {
+ record.same_file_record = (struct same_file_record){
+ .type = SAME_FILE,
+ .block_index = block_index,
+ .relative_ts_us = relative_us,
+ };
+ record_size = sizeof(struct same_file_record);
+ } else if (relative_us >= 1 << 14) {
+ record.same_file_next_block = (struct same_file_next_block){
+ .type = SAME_FILE_NEXT_BLOCK,
+ .relative_ts_us = relative_us,
+ };
+ record_size = sizeof(struct same_file_next_block);
+ } else {
+ record.same_file_next_block_short =
+ (struct same_file_next_block_short){
+ .type = SAME_FILE_NEXT_BLOCK_SHORT,
+ .relative_ts_us = relative_us,
+ };
+ record_size = sizeof(struct same_file_next_block_short);
+ }
+
+ head->base_record.block_index = block_index;
+ head->base_record.absolute_ts_us = now_us;
+
+ /* Advance tail beyond area we are going to overwrite */
+ while (tail->current_pass_no < head->current_pass_no &&
+ tail->next_offset < head->next_offset + record_size)
+ log_read_one_record(log, tail);
+
+ memcpy(((u8 *)log->rl_ring_buf) + head->next_offset, &record,
+ record_size);
+ head->next_offset += record_size;
+ if (head->next_offset > log->rl_size - sizeof(record)) {
+ head->next_offset = 0;
+ ++head->current_pass_no;
+ }
+ ++head->current_record_no;
+
+ spin_unlock(&log->rl_lock);
+ schedule_delayed_work(&log->ml_wakeup_work, msecs_to_jiffies(16));
+}
+
+static int validate_hash_tree(struct backing_file_context *bfc, struct file *f,
+ int block_index, struct mem_range data, u8 *buf)
+{
+ struct data_file *df = get_incfs_data_file(f);
+ u8 stored_digest[INCFS_MAX_HASH_SIZE] = {};
+ u8 calculated_digest[INCFS_MAX_HASH_SIZE] = {};
+ struct mtree *tree = NULL;
+ struct incfs_df_signature *sig = NULL;
+ int digest_size;
+ int hash_block_index = block_index;
+ int lvl;
+ int res;
+ loff_t hash_block_offset[INCFS_MAX_MTREE_LEVELS];
+ size_t hash_offset_in_block[INCFS_MAX_MTREE_LEVELS];
+ int hash_per_block;
+ pgoff_t file_pages;
+
+ tree = df->df_hash_tree;
+ sig = df->df_signature;
+ if (!tree || !sig)
+ return 0;
+
+ digest_size = tree->alg->digest_size;
+ hash_per_block = INCFS_DATA_FILE_BLOCK_SIZE / digest_size;
+ for (lvl = 0; lvl < tree->depth; lvl++) {
+ loff_t lvl_off = tree->hash_level_suboffset[lvl];
+
+ hash_block_offset[lvl] =
+ lvl_off + round_down(hash_block_index * digest_size,
+ INCFS_DATA_FILE_BLOCK_SIZE);
+ hash_offset_in_block[lvl] = hash_block_index * digest_size %
+ INCFS_DATA_FILE_BLOCK_SIZE;
+ hash_block_index /= hash_per_block;
+ }
+
+ memcpy(stored_digest, tree->root_hash, digest_size);
+
+ file_pages = DIV_ROUND_UP(df->df_size, INCFS_DATA_FILE_BLOCK_SIZE);
+ for (lvl = tree->depth - 1; lvl >= 0; lvl--) {
+ pgoff_t hash_page =
+ file_pages +
+ hash_block_offset[lvl] / INCFS_DATA_FILE_BLOCK_SIZE;
+ struct page *page = find_get_page_flags(
+ f->f_inode->i_mapping, hash_page, FGP_ACCESSED);
+
+ if (page && PageChecked(page)) {
+ u8 *addr = kmap_atomic(page);
+
+ memcpy(stored_digest, addr + hash_offset_in_block[lvl],
+ digest_size);
+ kunmap_atomic(addr);
+ put_page(page);
+ continue;
+ }
+
+ if (page)
+ put_page(page);
+
+ res = incfs_kread(bfc, buf, INCFS_DATA_FILE_BLOCK_SIZE,
+ hash_block_offset[lvl] + sig->hash_offset);
+ if (res < 0)
+ return res;
+ if (res != INCFS_DATA_FILE_BLOCK_SIZE)
+ return -EIO;
+ res = incfs_calc_digest(tree->alg,
+ range(buf, INCFS_DATA_FILE_BLOCK_SIZE),
+ range(calculated_digest, digest_size));
+ if (res)
+ return res;
+
+ if (memcmp(stored_digest, calculated_digest, digest_size)) {
+ int i;
+ bool zero = true;
+
+ pr_debug("incfs: Hash mismatch lvl:%d blk:%d\n",
+ lvl, block_index);
+ for (i = 0; i < digest_size; i++)
+ if (stored_digest[i]) {
+ zero = false;
+ break;
+ }
+
+ if (zero)
+ pr_debug("incfs: Note saved_digest all zero - did you forget to load the hashes?\n");
+ return -EBADMSG;
+ }
+
+ memcpy(stored_digest, buf + hash_offset_in_block[lvl],
+ digest_size);
+
+ page = grab_cache_page(f->f_inode->i_mapping, hash_page);
+ if (page) {
+ u8 *addr = kmap_atomic(page);
+
+ memcpy(addr, buf, INCFS_DATA_FILE_BLOCK_SIZE);
+ kunmap_atomic(addr);
+ SetPageChecked(page);
+ unlock_page(page);
+ put_page(page);
+ }
+ }
+
+ res = incfs_calc_digest(tree->alg, data,
+ range(calculated_digest, digest_size));
+ if (res)
+ return res;
+
+ if (memcmp(stored_digest, calculated_digest, digest_size)) {
+ pr_debug("incfs: Leaf hash mismatch blk:%d\n", block_index);
+ return -EBADMSG;
+ }
+
+ return 0;
+}
+
+static struct data_file_segment *get_file_segment(struct data_file *df,
+ int block_index)
+{
+ int seg_idx = block_index % ARRAY_SIZE(df->df_segments);
+
+ return &df->df_segments[seg_idx];
+}
+
+static bool is_data_block_present(struct data_file_block *block)
+{
+ return (block->db_backing_file_data_offset != 0) &&
+ (block->db_stored_size != 0);
+}
+
+static void convert_data_file_block(struct incfs_blockmap_entry *bme,
+ struct data_file_block *res_block)
+{
+ u16 flags = le16_to_cpu(bme->me_flags);
+
+ res_block->db_backing_file_data_offset =
+ le16_to_cpu(bme->me_data_offset_hi);
+ res_block->db_backing_file_data_offset <<= 32;
+ res_block->db_backing_file_data_offset |=
+ le32_to_cpu(bme->me_data_offset_lo);
+ res_block->db_stored_size = le16_to_cpu(bme->me_data_size);
+ res_block->db_comp_alg = (flags & INCFS_BLOCK_COMPRESSED_LZ4) ?
+ COMPRESSION_LZ4 :
+ COMPRESSION_NONE;
+}
+
+static int get_data_file_block(struct data_file *df, int index,
+ struct data_file_block *res_block)
+{
+ struct incfs_blockmap_entry bme = {};
+ struct backing_file_context *bfc = NULL;
+ loff_t blockmap_off = 0;
+ int error = 0;
+
+ if (!df || !res_block)
+ return -EFAULT;
+
+ blockmap_off = df->df_blockmap_off;
+ bfc = df->df_backing_file_context;
+
+ if (index < 0 || blockmap_off == 0)
+ return -EINVAL;
+
+ error = incfs_read_blockmap_entry(bfc, index, blockmap_off, &bme);
+ if (error)
+ return error;
+
+ convert_data_file_block(&bme, res_block);
+ return 0;
+}
+
+static int check_room_for_one_range(u32 size, u32 size_out)
+{
+ if (size_out + sizeof(struct incfs_filled_range) > size)
+ return -ERANGE;
+ return 0;
+}
+
+static int copy_one_range(struct incfs_filled_range *range, void __user *buffer,
+ u32 size, u32 *size_out)
+{
+ int error = check_room_for_one_range(size, *size_out);
+ if (error)
+ return error;
+
+ if (copy_to_user(((char __user *)buffer) + *size_out, range,
+ sizeof(*range)))
+ return -EFAULT;
+
+ *size_out += sizeof(*range);
+ return 0;
+}
+
+static int update_file_header_flags(struct data_file *df, u32 bits_to_reset,
+ u32 bits_to_set)
+{
+ int result;
+ u32 new_flags;
+ struct backing_file_context *bfc;
+
+ if (!df)
+ return -EFAULT;
+ bfc = df->df_backing_file_context;
+ if (!bfc)
+ return -EFAULT;
+
+ result = mutex_lock_interruptible(&bfc->bc_mutex);
+ if (result)
+ return result;
+
+ new_flags = (df->df_header_flags & ~bits_to_reset) | bits_to_set;
+ if (new_flags != df->df_header_flags) {
+ df->df_header_flags = new_flags;
+ result = incfs_write_file_header_flags(bfc, new_flags);
+ }
+
+ mutex_unlock(&bfc->bc_mutex);
+
+ return result;
+}
+
+#define READ_BLOCKMAP_ENTRIES 512
+int incfs_get_filled_blocks(struct data_file *df,
+ struct incfs_get_filled_blocks_args *arg)
+{
+ int error = 0;
+ bool in_range = false;
+ struct incfs_filled_range range;
+ void __user *buffer = u64_to_user_ptr(arg->range_buffer);
+ u32 size = arg->range_buffer_size;
+ u32 end_index =
+ arg->end_index ? arg->end_index : df->df_total_block_count;
+ u32 *size_out = &arg->range_buffer_size_out;
+ int i = READ_BLOCKMAP_ENTRIES - 1;
+ int entries_read = 0;
+ struct incfs_blockmap_entry *bme;
+
+ *size_out = 0;
+ if (end_index > df->df_total_block_count)
+ end_index = df->df_total_block_count;
+ arg->total_blocks_out = df->df_total_block_count;
+ arg->data_blocks_out = df->df_data_block_count;
+
+ if (df->df_header_flags & INCFS_FILE_COMPLETE) {
+ pr_debug("File marked full, fast get_filled_blocks");
+ if (arg->start_index > end_index) {
+ arg->index_out = arg->start_index;
+ return 0;
+ }
+ arg->index_out = arg->start_index;
+
+ error = check_room_for_one_range(size, *size_out);
+ if (error)
+ return error;
+
+ range = (struct incfs_filled_range){
+ .begin = arg->start_index,
+ .end = end_index,
+ };
+
+ error = copy_one_range(&range, buffer, size, size_out);
+ if (error)
+ return error;
+ arg->index_out = end_index;
+ return 0;
+ }
+
+ bme = kzalloc(sizeof(*bme) * READ_BLOCKMAP_ENTRIES,
+ GFP_NOFS | __GFP_COMP);
+ if (!bme)
+ return -ENOMEM;
+
+ for (arg->index_out = arg->start_index; arg->index_out < end_index;
+ ++arg->index_out) {
+ struct data_file_block dfb;
+
+ if (++i == READ_BLOCKMAP_ENTRIES) {
+ entries_read = incfs_read_blockmap_entries(
+ df->df_backing_file_context, bme,
+ arg->index_out, READ_BLOCKMAP_ENTRIES,
+ df->df_blockmap_off);
+ if (entries_read < 0) {
+ error = entries_read;
+ break;
+ }
+
+ i = 0;
+ }
+
+ if (i >= entries_read) {
+ error = -EIO;
+ break;
+ }
+
+ convert_data_file_block(bme + i, &dfb);
+
+ if (is_data_block_present(&dfb) == in_range)
+ continue;
+
+ if (!in_range) {
+ error = check_room_for_one_range(size, *size_out);
+ if (error)
+ break;
+ in_range = true;
+ range.begin = arg->index_out;
+ } else {
+ range.end = arg->index_out;
+ error = copy_one_range(&range, buffer, size, size_out);
+ if (error) {
+ /* there will be another try out of the loop,
+ * it will reset the index_out if it fails too
+ */
+ break;
+ }
+ in_range = false;
+ }
+ }
+
+ if (in_range) {
+ range.end = arg->index_out;
+ error = copy_one_range(&range, buffer, size, size_out);
+ if (error)
+ arg->index_out = range.begin;
+ }
+
+ if (!error && in_range && arg->start_index == 0 &&
+ end_index == df->df_total_block_count &&
+ *size_out == sizeof(struct incfs_filled_range)) {
+ int result =
+ update_file_header_flags(df, 0, INCFS_FILE_COMPLETE);
+ /* Log failure only, since it's just a failed optimization */
+ pr_debug("Marked file full with result %d", result);
+ }
+
+ kfree(bme);
+ return error;
+}
+
+static bool is_read_done(struct pending_read *read)
+{
+ return atomic_read_acquire(&read->done) != 0;
+}
+
+static void set_read_done(struct pending_read *read)
+{
+ atomic_set_release(&read->done, 1);
+}
+
+/*
+ * Notifies a given data file about pending read from a given block.
+ * Returns a new pending read entry.
+ */
+static struct pending_read *add_pending_read(struct data_file *df,
+ int block_index)
+{
+ struct pending_read *result = NULL;
+ struct data_file_segment *segment = NULL;
+ struct mount_info *mi = NULL;
+
+ segment = get_file_segment(df, block_index);
+ mi = df->df_mount_info;
+
+ result = kzalloc(sizeof(*result), GFP_NOFS);
+ if (!result)
+ return NULL;
+
+ result->file_id = df->df_id;
+ result->block_index = block_index;
+ result->timestamp_us = ktime_to_us(ktime_get());
+
+ mutex_lock(&mi->mi_pending_reads_mutex);
+
+ result->serial_number = ++mi->mi_last_pending_read_number;
+ mi->mi_pending_reads_count++;
+
+ list_add(&result->mi_reads_list, &mi->mi_reads_list_head);
+ list_add(&result->segment_reads_list, &segment->reads_list_head);
+ mutex_unlock(&mi->mi_pending_reads_mutex);
+
+ wake_up_all(&mi->mi_pending_reads_notif_wq);
+ return result;
+}
+
+/* Notifies a given data file that pending read is completed. */
+static void remove_pending_read(struct data_file *df, struct pending_read *read)
+{
+ struct mount_info *mi = NULL;
+
+ if (!df || !read) {
+ WARN_ON(!df);
+ WARN_ON(!read);
+ return;
+ }
+
+ mi = df->df_mount_info;
+
+ mutex_lock(&mi->mi_pending_reads_mutex);
+ list_del(&read->mi_reads_list);
+ list_del(&read->segment_reads_list);
+
+ mi->mi_pending_reads_count--;
+ mutex_unlock(&mi->mi_pending_reads_mutex);
+
+ kfree(read);
+}
+
+static void notify_pending_reads(struct mount_info *mi,
+ struct data_file_segment *segment,
+ int index)
+{
+ struct pending_read *entry = NULL;
+
+ /* Notify pending reads waiting for this block. */
+ mutex_lock(&mi->mi_pending_reads_mutex);
+ list_for_each_entry(entry, &segment->reads_list_head,
+ segment_reads_list) {
+ if (entry->block_index == index)
+ set_read_done(entry);
+ }
+ mutex_unlock(&mi->mi_pending_reads_mutex);
+ wake_up_all(&segment->new_data_arrival_wq);
+}
+
+static int wait_for_data_block(struct data_file *df, int block_index,
+ int timeout_ms,
+ struct data_file_block *res_block)
+{
+ struct data_file_block block = {};
+ struct data_file_segment *segment = NULL;
+ struct pending_read *read = NULL;
+ struct mount_info *mi = NULL;
+ int error = 0;
+ int wait_res = 0;
+
+ if (!df || !res_block)
+ return -EFAULT;
+
+ if (block_index < 0 || block_index >= df->df_data_block_count)
+ return -EINVAL;
+
+ if (df->df_blockmap_off <= 0)
+ return -ENODATA;
+
+ segment = get_file_segment(df, block_index);
+ error = mutex_lock_interruptible(&segment->blockmap_mutex);
+ if (error)
+ return error;
+
+ /* Look up the given block */
+ error = get_data_file_block(df, block_index, &block);
+
+ /* If it's not found, create a pending read */
+ if (!error && !is_data_block_present(&block) && timeout_ms != 0)
+ read = add_pending_read(df, block_index);
+
+ mutex_unlock(&segment->blockmap_mutex);
+ if (error)
+ return error;
+
+ /* If the block was found, just return it. No need to wait. */
+ if (is_data_block_present(&block)) {
+ *res_block = block;
+ return 0;
+ }
+
+ mi = df->df_mount_info;
+
+ if (timeout_ms == 0) {
+ log_block_read(mi, &df->df_id, block_index);
+ return -ETIME;
+ }
+
+ if (!read)
+ return -ENOMEM;
+
+ /* Wait for notifications about block's arrival */
+ wait_res =
+ wait_event_interruptible_timeout(segment->new_data_arrival_wq,
+ (is_read_done(read)),
+ msecs_to_jiffies(timeout_ms));
+
+ /* Woke up, the pending read is no longer needed. */
+ remove_pending_read(df, read);
+ read = NULL;
+
+ if (wait_res == 0) {
+ /* Wait has timed out */
+ log_block_read(mi, &df->df_id, block_index);
+ return -ETIME;
+ }
+ if (wait_res < 0) {
+ /*
+ * Only ERESTARTSYS is really expected here when a signal
+ * comes while we wait.
+ */
+ return wait_res;
+ }
+
+ error = mutex_lock_interruptible(&segment->blockmap_mutex);
+ if (error)
+ return error;
+
+ /*
+ * Re-read block's info now, it has just arrived and
+ * should be available.
+ */
+ error = get_data_file_block(df, block_index, &block);
+ if (!error) {
+ if (is_data_block_present(&block))
+ *res_block = block;
+ else {
+ /*
+ * Somehow wait finished successfully bug block still
+ * can't be found. It's not normal.
+ */
+ pr_warn("incfs:Wait succeeded, but block not found.\n");
+ error = -ENODATA;
+ }
+ }
+
+ mutex_unlock(&segment->blockmap_mutex);
+ return error;
+}
+
+ssize_t incfs_read_data_file_block(struct mem_range dst, struct file *f,
+ int index, int timeout_ms,
+ struct mem_range tmp)
+{
+ loff_t pos;
+ ssize_t result;
+ size_t bytes_to_read;
+ struct mount_info *mi = NULL;
+ struct backing_file_context *bfc = NULL;
+ struct data_file_block block = {};
+ struct data_file *df = get_incfs_data_file(f);
+
+ if (!dst.data || !df)
+ return -EFAULT;
+
+ if (tmp.len < 2 * INCFS_DATA_FILE_BLOCK_SIZE)
+ return -ERANGE;
+
+ mi = df->df_mount_info;
+ bfc = df->df_backing_file_context;
+
+ result = wait_for_data_block(df, index, timeout_ms, &block);
+ if (result < 0)
+ goto out;
+
+ pos = block.db_backing_file_data_offset;
+ if (block.db_comp_alg == COMPRESSION_NONE) {
+ bytes_to_read = min(dst.len, block.db_stored_size);
+ result = incfs_kread(bfc, dst.data, bytes_to_read, pos);
+
+ /* Some data was read, but not enough */
+ if (result >= 0 && result != bytes_to_read)
+ result = -EIO;
+ } else {
+ bytes_to_read = min(tmp.len, block.db_stored_size);
+ result = incfs_kread(bfc, tmp.data, bytes_to_read, pos);
+ if (result == bytes_to_read) {
+ result =
+ decompress(range(tmp.data, bytes_to_read), dst);
+ if (result < 0) {
+ const char *name =
+ bfc->bc_file->f_path.dentry->d_name.name;
+
+ pr_warn_once("incfs: Decompression error. %s",
+ name);
+ }
+ } else if (result >= 0) {
+ /* Some data was read, but not enough */
+ result = -EIO;
+ }
+ }
+
+ if (result > 0) {
+ int err = validate_hash_tree(bfc, f, index, dst, tmp.data);
+
+ if (err < 0)
+ result = err;
+ }
+
+ if (result >= 0)
+ log_block_read(mi, &df->df_id, index);
+
+out:
+ return result;
+}
+
+int incfs_process_new_data_block(struct data_file *df,
+ struct incfs_fill_block *block, u8 *data)
+{
+ struct mount_info *mi = NULL;
+ struct backing_file_context *bfc = NULL;
+ struct data_file_segment *segment = NULL;
+ struct data_file_block existing_block = {};
+ u16 flags = 0;
+ int error = 0;
+
+ if (!df || !block)
+ return -EFAULT;
+
+ bfc = df->df_backing_file_context;
+ mi = df->df_mount_info;
+
+ if (block->block_index >= df->df_data_block_count)
+ return -ERANGE;
+
+ segment = get_file_segment(df, block->block_index);
+ if (!segment)
+ return -EFAULT;
+ if (block->compression == COMPRESSION_LZ4)
+ flags |= INCFS_BLOCK_COMPRESSED_LZ4;
+
+ error = mutex_lock_interruptible(&segment->blockmap_mutex);
+ if (error)
+ return error;
+
+ error = get_data_file_block(df, block->block_index, &existing_block);
+ if (error)
+ goto unlock;
+ if (is_data_block_present(&existing_block)) {
+ /* Block is already present, nothing to do here */
+ goto unlock;
+ }
+
+ error = mutex_lock_interruptible(&bfc->bc_mutex);
+ if (!error) {
+ error = incfs_write_data_block_to_backing_file(
+ bfc, range(data, block->data_len), block->block_index,
+ df->df_blockmap_off, flags);
+ mutex_unlock(&bfc->bc_mutex);
+ }
+ if (!error)
+ notify_pending_reads(mi, segment, block->block_index);
+
+unlock:
+ mutex_unlock(&segment->blockmap_mutex);
+ if (error)
+ pr_debug("%d error: %d\n", block->block_index, error);
+ return error;
+}
+
+int incfs_read_file_signature(struct data_file *df, struct mem_range dst)
+{
+ struct backing_file_context *bfc = df->df_backing_file_context;
+ struct incfs_df_signature *sig;
+ int read_res = 0;
+
+ if (!dst.data)
+ return -EFAULT;
+
+ sig = df->df_signature;
+ if (!sig)
+ return 0;
+
+ if (dst.len < sig->sig_size)
+ return -E2BIG;
+
+ read_res = incfs_kread(bfc, dst.data, sig->sig_size, sig->sig_offset);
+
+ if (read_res < 0)
+ return read_res;
+
+ if (read_res != sig->sig_size)
+ return -EIO;
+
+ return read_res;
+}
+
+int incfs_process_new_hash_block(struct data_file *df,
+ struct incfs_fill_block *block, u8 *data)
+{
+ struct backing_file_context *bfc = NULL;
+ struct mount_info *mi = NULL;
+ struct mtree *hash_tree = NULL;
+ struct incfs_df_signature *sig = NULL;
+ loff_t hash_area_base = 0;
+ loff_t hash_area_size = 0;
+ int error = 0;
+
+ if (!df || !block)
+ return -EFAULT;
+
+ if (!(block->flags & INCFS_BLOCK_FLAGS_HASH))
+ return -EINVAL;
+
+ bfc = df->df_backing_file_context;
+ mi = df->df_mount_info;
+
+ if (!df)
+ return -ENOENT;
+
+ hash_tree = df->df_hash_tree;
+ sig = df->df_signature;
+ if (!hash_tree || !sig || sig->hash_offset == 0)
+ return -ENOTSUPP;
+
+ hash_area_base = sig->hash_offset;
+ hash_area_size = sig->hash_size;
+ if (hash_area_size < block->block_index * INCFS_DATA_FILE_BLOCK_SIZE
+ + block->data_len) {
+ /* Hash block goes beyond dedicated hash area of this file. */
+ return -ERANGE;
+ }
+
+ error = mutex_lock_interruptible(&bfc->bc_mutex);
+ if (!error) {
+ error = incfs_write_hash_block_to_backing_file(
+ bfc, range(data, block->data_len), block->block_index,
+ hash_area_base, df->df_blockmap_off, df->df_size);
+ mutex_unlock(&bfc->bc_mutex);
+ }
+ return error;
+}
+
+static int process_blockmap_md(struct incfs_blockmap *bm,
+ struct metadata_handler *handler)
+{
+ struct data_file *df = handler->context;
+ int error = 0;
+ loff_t base_off = le64_to_cpu(bm->m_base_offset);
+ u32 block_count = le32_to_cpu(bm->m_block_count);
+
+ if (!df)
+ return -EFAULT;
+
+ if (df->df_data_block_count > block_count)
+ return -EBADMSG;
+
+ df->df_total_block_count = block_count;
+ df->df_blockmap_off = base_off;
+ return error;
+}
+
+static int process_file_attr_md(struct incfs_file_attr *fa,
+ struct metadata_handler *handler)
+{
+ struct data_file *df = handler->context;
+ u16 attr_size = le16_to_cpu(fa->fa_size);
+
+ if (!df)
+ return -EFAULT;
+
+ if (attr_size > INCFS_MAX_FILE_ATTR_SIZE)
+ return -E2BIG;
+
+ df->n_attr.fa_value_offset = le64_to_cpu(fa->fa_offset);
+ df->n_attr.fa_value_size = attr_size;
+ df->n_attr.fa_crc = le32_to_cpu(fa->fa_crc);
+
+ return 0;
+}
+
+static int process_file_signature_md(struct incfs_file_signature *sg,
+ struct metadata_handler *handler)
+{
+ struct data_file *df = handler->context;
+ struct mtree *hash_tree = NULL;
+ int error = 0;
+ struct incfs_df_signature *signature =
+ kzalloc(sizeof(*signature), GFP_NOFS);
+ void *buf = NULL;
+ ssize_t read;
+
+ if (!signature)
+ return -ENOMEM;
+
+ if (!df || !df->df_backing_file_context ||
+ !df->df_backing_file_context->bc_file) {
+ error = -ENOENT;
+ goto out;
+ }
+
+ signature->hash_offset = le64_to_cpu(sg->sg_hash_tree_offset);
+ signature->hash_size = le32_to_cpu(sg->sg_hash_tree_size);
+ signature->sig_offset = le64_to_cpu(sg->sg_sig_offset);
+ signature->sig_size = le32_to_cpu(sg->sg_sig_size);
+
+ buf = kzalloc(signature->sig_size, GFP_NOFS);
+ if (!buf) {
+ error = -ENOMEM;
+ goto out;
+ }
+
+ read = incfs_kread(df->df_backing_file_context, buf,
+ signature->sig_size, signature->sig_offset);
+ if (read < 0) {
+ error = read;
+ goto out;
+ }
+
+ if (read != signature->sig_size) {
+ error = -EINVAL;
+ goto out;
+ }
+
+ hash_tree = incfs_alloc_mtree(range(buf, signature->sig_size),
+ df->df_data_block_count);
+ if (IS_ERR(hash_tree)) {
+ error = PTR_ERR(hash_tree);
+ hash_tree = NULL;
+ goto out;
+ }
+ if (hash_tree->hash_tree_area_size != signature->hash_size) {
+ error = -EINVAL;
+ goto out;
+ }
+ if (signature->hash_size > 0 &&
+ handler->md_record_offset <= signature->hash_offset) {
+ error = -EINVAL;
+ goto out;
+ }
+ if (handler->md_record_offset <= signature->sig_offset) {
+ error = -EINVAL;
+ goto out;
+ }
+ df->df_hash_tree = hash_tree;
+ hash_tree = NULL;
+ df->df_signature = signature;
+ signature = NULL;
+out:
+ incfs_free_mtree(hash_tree);
+ kfree(signature);
+ kfree(buf);
+
+ return error;
+}
+
+int incfs_scan_metadata_chain(struct data_file *df)
+{
+ struct metadata_handler *handler = NULL;
+ int result = 0;
+ int records_count = 0;
+ int error = 0;
+ struct backing_file_context *bfc = NULL;
+
+ if (!df || !df->df_backing_file_context)
+ return -EFAULT;
+
+ bfc = df->df_backing_file_context;
+
+ handler = kzalloc(sizeof(*handler), GFP_NOFS);
+ if (!handler)
+ return -ENOMEM;
+
+ /* No writing to the backing file while it's being scanned. */
+ error = mutex_lock_interruptible(&bfc->bc_mutex);
+ if (error)
+ goto out;
+
+ /* Reading superblock */
+ handler->md_record_offset = df->df_metadata_off;
+ handler->context = df;
+ handler->handle_blockmap = process_blockmap_md;
+ handler->handle_file_attr = process_file_attr_md;
+ handler->handle_signature = process_file_signature_md;
+
+ pr_debug("incfs: Starting reading incfs-metadata records at offset %lld\n",
+ handler->md_record_offset);
+ while (handler->md_record_offset > 0) {
+ error = incfs_read_next_metadata_record(bfc, handler);
+ if (error) {
+ pr_warn("incfs: Error during reading incfs-metadata record. Offset: %lld Record #%d Error code: %d\n",
+ handler->md_record_offset, records_count + 1,
+ -error);
+ break;
+ }
+ records_count++;
+ }
+ if (error) {
+ pr_debug("incfs: Error %d after reading %d incfs-metadata records.\n",
+ -error, records_count);
+ result = error;
+ } else {
+ pr_debug("incfs: Finished reading %d incfs-metadata records.\n",
+ records_count);
+ result = records_count;
+ }
+ mutex_unlock(&bfc->bc_mutex);
+
+ if (df->df_hash_tree) {
+ int hash_block_count = get_blocks_count_for_size(
+ df->df_hash_tree->hash_tree_area_size);
+
+ if (df->df_data_block_count + hash_block_count !=
+ df->df_total_block_count)
+ result = -EINVAL;
+ } else if (df->df_data_block_count != df->df_total_block_count)
+ result = -EINVAL;
+
+out:
+ kfree(handler);
+ return result;
+}
+
+/*
+ * Quickly checks if there are pending reads with a serial number larger
+ * than a given one.
+ */
+bool incfs_fresh_pending_reads_exist(struct mount_info *mi, int last_number)
+{
+ bool result = false;
+
+ mutex_lock(&mi->mi_pending_reads_mutex);
+ result = (mi->mi_last_pending_read_number > last_number) &&
+ (mi->mi_pending_reads_count > 0);
+ mutex_unlock(&mi->mi_pending_reads_mutex);
+ return result;
+}
+
+int incfs_collect_pending_reads(struct mount_info *mi, int sn_lowerbound,
+ struct incfs_pending_read_info *reads,
+ int reads_size)
+{
+ int reported_reads = 0;
+ struct pending_read *entry = NULL;
+
+ if (!mi)
+ return -EFAULT;
+
+ if (reads_size <= 0)
+ return 0;
+
+ mutex_lock(&mi->mi_pending_reads_mutex);
+
+ if (mi->mi_last_pending_read_number <= sn_lowerbound
+ || mi->mi_pending_reads_count == 0)
+ goto unlock;
+
+ list_for_each_entry(entry, &mi->mi_reads_list_head, mi_reads_list) {
+ if (entry->serial_number <= sn_lowerbound)
+ continue;
+
+ reads[reported_reads].file_id = entry->file_id;
+ reads[reported_reads].block_index = entry->block_index;
+ reads[reported_reads].serial_number = entry->serial_number;
+ reads[reported_reads].timestamp_us = entry->timestamp_us;
+ /* reads[reported_reads].kind = INCFS_READ_KIND_PENDING; */
+
+ reported_reads++;
+ if (reported_reads >= reads_size)
+ break;
+ }
+
+unlock:
+ mutex_unlock(&mi->mi_pending_reads_mutex);
+
+ return reported_reads;
+}
+
+struct read_log_state incfs_get_log_state(struct mount_info *mi)
+{
+ struct read_log *log = &mi->mi_log;
+ struct read_log_state result;
+
+ spin_lock(&log->rl_lock);
+ result = log->rl_head;
+ spin_unlock(&log->rl_lock);
+ return result;
+}
+
+int incfs_get_uncollected_logs_count(struct mount_info *mi,
+ const struct read_log_state *state)
+{
+ struct read_log *log = &mi->mi_log;
+ u32 generation;
+ u64 head_no, tail_no;
+
+ spin_lock(&log->rl_lock);
+ tail_no = log->rl_tail.current_record_no;
+ head_no = log->rl_head.current_record_no;
+ generation = log->rl_head.generation_id;
+ spin_unlock(&log->rl_lock);
+
+ if (generation != state->generation_id)
+ return head_no - tail_no;
+ else
+ return head_no - max_t(u64, tail_no, state->current_record_no);
+}
+
+int incfs_collect_logged_reads(struct mount_info *mi,
+ struct read_log_state *reader_state,
+ struct incfs_pending_read_info *reads,
+ int reads_size)
+{
+ int dst_idx;
+ struct read_log *log = &mi->mi_log;
+ struct read_log_state *head, *tail;
+
+ spin_lock(&log->rl_lock);
+ head = &log->rl_head;
+ tail = &log->rl_tail;
+
+ if (reader_state->generation_id != head->generation_id) {
+ pr_debug("read ptr is wrong generation: %u/%u",
+ reader_state->generation_id, head->generation_id);
+
+ *reader_state = (struct read_log_state){
+ .generation_id = head->generation_id,
+ };
+ }
+
+ if (reader_state->current_record_no < tail->current_record_no) {
+ pr_debug("read ptr is behind, moving: %u/%u -> %u/%u\n",
+ (u32)reader_state->next_offset,
+ (u32)reader_state->current_pass_no,
+ (u32)tail->next_offset, (u32)tail->current_pass_no);
+
+ *reader_state = *tail;
+ }
+
+ for (dst_idx = 0; dst_idx < reads_size; dst_idx++) {
+ if (reader_state->current_record_no == head->current_record_no)
+ break;
+
+ log_read_one_record(log, reader_state);
+
+ reads[dst_idx] = (struct incfs_pending_read_info){
+ .file_id = reader_state->base_record.file_id,
+ .block_index = reader_state->base_record.block_index,
+ .serial_number = reader_state->current_record_no,
+ .timestamp_us = reader_state->base_record.absolute_ts_us
+ };
+ }
+
+ spin_unlock(&log->rl_lock);
+ return dst_idx;
+}
+
+bool incfs_equal_ranges(struct mem_range lhs, struct mem_range rhs)
+{
+ if (lhs.len != rhs.len)
+ return false;
+ return memcmp(lhs.data, rhs.data, lhs.len) == 0;
+}
diff --git a/fs/incfs/data_mgmt.h b/fs/incfs/data_mgmt.h
new file mode 100644
index 0000000..2726867
--- /dev/null
+++ b/fs/incfs/data_mgmt.h
@@ -0,0 +1,394 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2019 Google LLC
+ */
+#ifndef _INCFS_DATA_MGMT_H
+#define _INCFS_DATA_MGMT_H
+
+#include <linux/cred.h>
+#include <linux/fs.h>
+#include <linux/types.h>
+#include <linux/mutex.h>
+#include <linux/spinlock.h>
+#include <linux/completion.h>
+#include <linux/wait.h>
+#include <crypto/hash.h>
+
+#include <uapi/linux/incrementalfs.h>
+
+#include "internal.h"
+
+#define SEGMENTS_PER_FILE 3
+
+enum LOG_RECORD_TYPE {
+ FULL,
+ SAME_FILE,
+ SAME_FILE_NEXT_BLOCK,
+ SAME_FILE_NEXT_BLOCK_SHORT,
+};
+
+struct full_record {
+ enum LOG_RECORD_TYPE type : 2; /* FULL */
+ u32 block_index : 30;
+ incfs_uuid_t file_id;
+ u64 absolute_ts_us;
+} __packed; /* 28 bytes */
+
+struct same_file_record {
+ enum LOG_RECORD_TYPE type : 2; /* SAME_FILE */
+ u32 block_index : 30;
+ u32 relative_ts_us; /* max 2^32 us ~= 1 hour (1:11:30) */
+} __packed; /* 12 bytes */
+
+struct same_file_next_block {
+ enum LOG_RECORD_TYPE type : 2; /* SAME_FILE_NEXT_BLOCK */
+ u32 relative_ts_us : 30; /* max 2^30 us ~= 15 min (17:50) */
+} __packed; /* 4 bytes */
+
+struct same_file_next_block_short {
+ enum LOG_RECORD_TYPE type : 2; /* SAME_FILE_NEXT_BLOCK_SHORT */
+ u16 relative_ts_us : 14; /* max 2^14 us ~= 16 ms */
+} __packed; /* 2 bytes */
+
+union log_record {
+ struct full_record full_record;
+ struct same_file_record same_file_record;
+ struct same_file_next_block same_file_next_block;
+ struct same_file_next_block_short same_file_next_block_short;
+};
+
+struct read_log_state {
+ /* Log buffer generation id, incremented on configuration changes */
+ u32 generation_id;
+
+ /* Offset in rl_ring_buf to write into. */
+ u32 next_offset;
+
+ /* Current number of writer passes over rl_ring_buf */
+ u32 current_pass_no;
+
+ /* Current full_record to diff against */
+ struct full_record base_record;
+
+ /* Current record number counting from configuration change */
+ u64 current_record_no;
+};
+
+/* A ring buffer to save records about data blocks which were recently read. */
+struct read_log {
+ void *rl_ring_buf;
+
+ int rl_size;
+
+ struct read_log_state rl_head;
+
+ struct read_log_state rl_tail;
+
+ /* A lock to protect the above fields */
+ spinlock_t rl_lock;
+
+ /* A queue of waiters who want to be notified about reads */
+ wait_queue_head_t ml_notif_wq;
+
+ /* A work item to wake up those waiters without slowing down readers */
+ struct delayed_work ml_wakeup_work;
+};
+
+struct mount_options {
+ unsigned int read_timeout_ms;
+ unsigned int readahead_pages;
+ unsigned int read_log_pages;
+ unsigned int read_log_wakeup_count;
+ bool no_backing_file_cache;
+ bool no_backing_file_readahead;
+};
+
+struct mount_info {
+ struct super_block *mi_sb;
+
+ struct path mi_backing_dir_path;
+
+ struct dentry *mi_index_dir;
+
+ const struct cred *mi_owner;
+
+ struct mount_options mi_options;
+
+ /* This mutex is to be taken before create, rename, delete */
+ struct mutex mi_dir_struct_mutex;
+
+ /*
+ * A queue of waiters who want to be notified about new pending reads.
+ */
+ wait_queue_head_t mi_pending_reads_notif_wq;
+
+ /*
+ * Protects:
+ * - reads_list_head
+ * - mi_pending_reads_count
+ * - mi_last_pending_read_number
+ * - data_file_segment.reads_list_head
+ */
+ struct mutex mi_pending_reads_mutex;
+
+ /* List of active pending_read objects */
+ struct list_head mi_reads_list_head;
+
+ /* Total number of items in reads_list_head */
+ int mi_pending_reads_count;
+
+ /*
+ * Last serial number that was assigned to a pending read.
+ * 0 means no pending reads have been seen yet.
+ */
+ int mi_last_pending_read_number;
+
+ /* Temporary buffer for read logger. */
+ struct read_log mi_log;
+
+ void *log_xattr;
+ size_t log_xattr_size;
+
+ void *pending_read_xattr;
+ size_t pending_read_xattr_size;
+};
+
+struct data_file_block {
+ loff_t db_backing_file_data_offset;
+
+ size_t db_stored_size;
+
+ enum incfs_compression_alg db_comp_alg;
+};
+
+struct pending_read {
+ incfs_uuid_t file_id;
+
+ s64 timestamp_us;
+
+ atomic_t done;
+
+ int block_index;
+
+ int serial_number;
+
+ struct list_head mi_reads_list;
+
+ struct list_head segment_reads_list;
+};
+
+struct data_file_segment {
+ wait_queue_head_t new_data_arrival_wq;
+
+ /* Protects reads and writes from the blockmap */
+ /* Good candidate for read/write mutex */
+ struct mutex blockmap_mutex;
+
+ /* List of active pending_read objects belonging to this segment */
+ /* Protected by mount_info.pending_reads_mutex */
+ struct list_head reads_list_head;
+};
+
+/*
+ * Extra info associated with a file. Just a few bytes set by a user.
+ */
+struct file_attr {
+ loff_t fa_value_offset;
+
+ size_t fa_value_size;
+
+ u32 fa_crc;
+};
+
+
+struct data_file {
+ struct backing_file_context *df_backing_file_context;
+
+ struct mount_info *df_mount_info;
+
+ incfs_uuid_t df_id;
+
+ /*
+ * Array of segments used to reduce lock contention for the file.
+ * Segment is chosen for a block depends on the block's index.
+ */
+ struct data_file_segment df_segments[SEGMENTS_PER_FILE];
+
+ /* Base offset of the first metadata record. */
+ loff_t df_metadata_off;
+
+ /* Base offset of the block map. */
+ loff_t df_blockmap_off;
+
+ /* File size in bytes */
+ loff_t df_size;
+
+ /* File header flags */
+ u32 df_header_flags;
+
+ /* File size in DATA_FILE_BLOCK_SIZE blocks */
+ int df_data_block_count;
+
+ /* Total number of blocks, data + hash */
+ int df_total_block_count;
+
+ struct file_attr n_attr;
+
+ struct mtree *df_hash_tree;
+
+ struct incfs_df_signature *df_signature;
+};
+
+struct dir_file {
+ struct mount_info *mount_info;
+
+ struct file *backing_dir;
+};
+
+struct inode_info {
+ struct mount_info *n_mount_info; /* A mount, this file belongs to */
+
+ struct inode *n_backing_inode;
+
+ struct data_file *n_file;
+
+ struct inode n_vfs_inode;
+};
+
+struct dentry_info {
+ struct path backing_path;
+};
+
+struct mount_info *incfs_alloc_mount_info(struct super_block *sb,
+ struct mount_options *options,
+ struct path *backing_dir_path);
+
+int incfs_realloc_mount_info(struct mount_info *mi,
+ struct mount_options *options);
+
+void incfs_free_mount_info(struct mount_info *mi);
+
+struct data_file *incfs_open_data_file(struct mount_info *mi, struct file *bf);
+void incfs_free_data_file(struct data_file *df);
+
+int incfs_scan_metadata_chain(struct data_file *df);
+
+struct dir_file *incfs_open_dir_file(struct mount_info *mi, struct file *bf);
+void incfs_free_dir_file(struct dir_file *dir);
+
+ssize_t incfs_read_data_file_block(struct mem_range dst, struct file *f,
+ int index, int timeout_ms,
+ struct mem_range tmp);
+
+int incfs_get_filled_blocks(struct data_file *df,
+ struct incfs_get_filled_blocks_args *arg);
+
+int incfs_read_file_signature(struct data_file *df, struct mem_range dst);
+
+int incfs_process_new_data_block(struct data_file *df,
+ struct incfs_fill_block *block, u8 *data);
+
+int incfs_process_new_hash_block(struct data_file *df,
+ struct incfs_fill_block *block, u8 *data);
+
+bool incfs_fresh_pending_reads_exist(struct mount_info *mi, int last_number);
+
+/*
+ * Collects pending reads and saves them into the array (reads/reads_size).
+ * Only reads with serial_number > sn_lowerbound are reported.
+ * Returns how many reads were saved into the array.
+ */
+int incfs_collect_pending_reads(struct mount_info *mi, int sn_lowerbound,
+ struct incfs_pending_read_info *reads,
+ int reads_size);
+
+int incfs_collect_logged_reads(struct mount_info *mi,
+ struct read_log_state *start_state,
+ struct incfs_pending_read_info *reads,
+ int reads_size);
+struct read_log_state incfs_get_log_state(struct mount_info *mi);
+int incfs_get_uncollected_logs_count(struct mount_info *mi,
+ const struct read_log_state *state);
+
+static inline struct inode_info *get_incfs_node(struct inode *inode)
+{
+ if (!inode)
+ return NULL;
+
+ if (inode->i_sb->s_magic != (long) INCFS_MAGIC_NUMBER) {
+ /* This inode doesn't belong to us. */
+ pr_warn_once("incfs: %s on an alien inode.", __func__);
+ return NULL;
+ }
+
+ return container_of(inode, struct inode_info, n_vfs_inode);
+}
+
+static inline struct data_file *get_incfs_data_file(struct file *f)
+{
+ struct inode_info *node = NULL;
+
+ if (!f)
+ return NULL;
+
+ if (!S_ISREG(f->f_inode->i_mode))
+ return NULL;
+
+ node = get_incfs_node(f->f_inode);
+ if (!node)
+ return NULL;
+
+ return node->n_file;
+}
+
+static inline struct dir_file *get_incfs_dir_file(struct file *f)
+{
+ if (!f)
+ return NULL;
+
+ if (!S_ISDIR(f->f_inode->i_mode))
+ return NULL;
+
+ return (struct dir_file *)f->private_data;
+}
+
+/*
+ * Make sure that inode_info.n_file is initialized and inode can be used
+ * for reading and writing data from/to the backing file.
+ */
+int make_inode_ready_for_data_ops(struct mount_info *mi,
+ struct inode *inode,
+ struct file *backing_file);
+
+static inline struct dentry_info *get_incfs_dentry(const struct dentry *d)
+{
+ if (!d)
+ return NULL;
+
+ return (struct dentry_info *)d->d_fsdata;
+}
+
+static inline void get_incfs_backing_path(const struct dentry *d,
+ struct path *path)
+{
+ struct dentry_info *di = get_incfs_dentry(d);
+
+ if (!di) {
+ *path = (struct path) {};
+ return;
+ }
+
+ *path = di->backing_path;
+ path_get(path);
+}
+
+static inline int get_blocks_count_for_size(u64 size)
+{
+ if (size == 0)
+ return 0;
+ return 1 + (size - 1) / INCFS_DATA_FILE_BLOCK_SIZE;
+}
+
+bool incfs_equal_ranges(struct mem_range lhs, struct mem_range rhs);
+
+#endif /* _INCFS_DATA_MGMT_H */
diff --git a/fs/incfs/format.c b/fs/incfs/format.c
new file mode 100644
index 0000000..d326415
--- /dev/null
+++ b/fs/incfs/format.c
@@ -0,0 +1,701 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2018 Google LLC
+ */
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/types.h>
+#include <linux/mutex.h>
+#include <linux/mm.h>
+#include <linux/falloc.h>
+#include <linux/slab.h>
+#include <linux/crc32.h>
+#include <linux/kernel.h>
+
+#include "format.h"
+#include "data_mgmt.h"
+
+struct backing_file_context *incfs_alloc_bfc(struct mount_info *mi,
+ struct file *backing_file)
+{
+ struct backing_file_context *result = NULL;
+
+ result = kzalloc(sizeof(*result), GFP_NOFS);
+ if (!result)
+ return ERR_PTR(-ENOMEM);
+
+ result->bc_file = get_file(backing_file);
+ result->bc_cred = mi->mi_owner;
+ mutex_init(&result->bc_mutex);
+ return result;
+}
+
+void incfs_free_bfc(struct backing_file_context *bfc)
+{
+ if (!bfc)
+ return;
+
+ if (bfc->bc_file)
+ fput(bfc->bc_file);
+
+ mutex_destroy(&bfc->bc_mutex);
+ kfree(bfc);
+}
+
+loff_t incfs_get_end_offset(struct file *f)
+{
+ /*
+ * This function assumes that file size and the end-offset
+ * are the same. This is not always true.
+ */
+ return i_size_read(file_inode(f));
+}
+
+/*
+ * Truncate the tail of the file to the given length.
+ * Used to rollback partially successful multistep writes.
+ */
+static int truncate_backing_file(struct backing_file_context *bfc,
+ loff_t new_end)
+{
+ struct inode *inode = NULL;
+ struct dentry *dentry = NULL;
+ loff_t old_end = 0;
+ struct iattr attr;
+ int result = 0;
+
+ if (!bfc)
+ return -EFAULT;
+
+ LOCK_REQUIRED(bfc->bc_mutex);
+
+ if (!bfc->bc_file)
+ return -EFAULT;
+
+ old_end = incfs_get_end_offset(bfc->bc_file);
+ if (old_end == new_end)
+ return 0;
+ if (old_end < new_end)
+ return -EINVAL;
+
+ inode = bfc->bc_file->f_inode;
+ dentry = bfc->bc_file->f_path.dentry;
+
+ attr.ia_size = new_end;
+ attr.ia_valid = ATTR_SIZE;
+
+ inode_lock(inode);
+ result = notify_change(dentry, &attr, NULL);
+ inode_unlock(inode);
+
+ return result;
+}
+
+/* Append a given number of zero bytes to the end of the backing file. */
+static int append_zeros(struct backing_file_context *bfc, size_t len)
+{
+ loff_t file_size = 0;
+ loff_t new_last_byte_offset = 0;
+
+ if (!bfc)
+ return -EFAULT;
+
+ if (len == 0)
+ return 0;
+
+ LOCK_REQUIRED(bfc->bc_mutex);
+
+ /*
+ * Allocate only one byte at the new desired end of the file.
+ * It will increase file size and create a zeroed area of
+ * a given size.
+ */
+ file_size = incfs_get_end_offset(bfc->bc_file);
+ new_last_byte_offset = file_size + len - 1;
+ return vfs_fallocate(bfc->bc_file, 0, new_last_byte_offset, 1);
+}
+
+static int write_to_bf(struct backing_file_context *bfc, const void *buf,
+ size_t count, loff_t pos)
+{
+ ssize_t res = incfs_kwrite(bfc, buf, count, pos);
+
+ if (res < 0)
+ return res;
+ if (res != count)
+ return -EIO;
+ return 0;
+}
+
+static u32 calc_md_crc(struct incfs_md_header *record)
+{
+ u32 result = 0;
+ __le32 saved_crc = record->h_record_crc;
+ __le64 saved_md_offset = record->h_next_md_offset;
+ size_t record_size = min_t(size_t, le16_to_cpu(record->h_record_size),
+ INCFS_MAX_METADATA_RECORD_SIZE);
+
+ /* Zero fields which needs to be excluded from CRC calculation. */
+ record->h_record_crc = 0;
+ record->h_next_md_offset = 0;
+ result = crc32(0, record, record_size);
+
+ /* Restore excluded fields. */
+ record->h_record_crc = saved_crc;
+ record->h_next_md_offset = saved_md_offset;
+
+ return result;
+}
+
+/*
+ * Append a given metadata record to the backing file and update a previous
+ * record to add the new record the the metadata list.
+ */
+static int append_md_to_backing_file(struct backing_file_context *bfc,
+ struct incfs_md_header *record)
+{
+ int result = 0;
+ loff_t record_offset;
+ loff_t file_pos;
+ __le64 new_md_offset;
+ size_t record_size;
+
+ if (!bfc || !record)
+ return -EFAULT;
+
+ if (bfc->bc_last_md_record_offset < 0)
+ return -EINVAL;
+
+ LOCK_REQUIRED(bfc->bc_mutex);
+
+ record_size = le16_to_cpu(record->h_record_size);
+ file_pos = incfs_get_end_offset(bfc->bc_file);
+ record->h_prev_md_offset = cpu_to_le64(bfc->bc_last_md_record_offset);
+ record->h_next_md_offset = 0;
+ record->h_record_crc = cpu_to_le32(calc_md_crc(record));
+
+ /* Write the metadata record to the end of the backing file */
+ record_offset = file_pos;
+ new_md_offset = cpu_to_le64(record_offset);
+ result = write_to_bf(bfc, record, record_size, file_pos);
+ if (result)
+ return result;
+
+ /* Update next metadata offset in a previous record or a superblock. */
+ if (bfc->bc_last_md_record_offset) {
+ /*
+ * Find a place in the previous md record where new record's
+ * offset needs to be saved.
+ */
+ file_pos = bfc->bc_last_md_record_offset +
+ offsetof(struct incfs_md_header, h_next_md_offset);
+ } else {
+ /*
+ * No metadata yet, file a place to update in the
+ * file_header.
+ */
+ file_pos = offsetof(struct incfs_file_header,
+ fh_first_md_offset);
+ }
+ result = write_to_bf(bfc, &new_md_offset, sizeof(new_md_offset),
+ file_pos);
+ if (result)
+ return result;
+
+ bfc->bc_last_md_record_offset = record_offset;
+ return result;
+}
+
+int incfs_write_file_header_flags(struct backing_file_context *bfc, u32 flags)
+{
+ if (!bfc)
+ return -EFAULT;
+
+ return write_to_bf(bfc, &flags, sizeof(flags),
+ offsetof(struct incfs_file_header,
+ fh_file_header_flags));
+}
+
+/*
+ * Reserve 0-filled space for the blockmap body, and append
+ * incfs_blockmap metadata record pointing to it.
+ */
+int incfs_write_blockmap_to_backing_file(struct backing_file_context *bfc,
+ u32 block_count)
+{
+ struct incfs_blockmap blockmap = {};
+ int result = 0;
+ loff_t file_end = 0;
+ size_t map_size = block_count * sizeof(struct incfs_blockmap_entry);
+
+ if (!bfc)
+ return -EFAULT;
+
+ blockmap.m_header.h_md_entry_type = INCFS_MD_BLOCK_MAP;
+ blockmap.m_header.h_record_size = cpu_to_le16(sizeof(blockmap));
+ blockmap.m_header.h_next_md_offset = cpu_to_le64(0);
+ blockmap.m_block_count = cpu_to_le32(block_count);
+
+ LOCK_REQUIRED(bfc->bc_mutex);
+
+ /* Reserve 0-filled space for the blockmap body in the backing file. */
+ file_end = incfs_get_end_offset(bfc->bc_file);
+ result = append_zeros(bfc, map_size);
+ if (result)
+ return result;
+
+ /* Write blockmap metadata record pointing to the body written above. */
+ blockmap.m_base_offset = cpu_to_le64(file_end);
+ result = append_md_to_backing_file(bfc, &blockmap.m_header);
+ if (result)
+ /* Error, rollback file changes */
+ truncate_backing_file(bfc, file_end);
+
+ return result;
+}
+
+/*
+ * Write file attribute data and metadata record to the backing file.
+ */
+int incfs_write_file_attr_to_backing_file(struct backing_file_context *bfc,
+ struct mem_range value, struct incfs_file_attr *attr)
+{
+ struct incfs_file_attr file_attr = {};
+ int result = 0;
+ u32 crc = 0;
+ loff_t value_offset = 0;
+
+ if (!bfc)
+ return -EFAULT;
+
+ if (value.len > INCFS_MAX_FILE_ATTR_SIZE)
+ return -ENOSPC;
+
+ LOCK_REQUIRED(bfc->bc_mutex);
+
+ crc = crc32(0, value.data, value.len);
+ value_offset = incfs_get_end_offset(bfc->bc_file);
+ file_attr.fa_header.h_md_entry_type = INCFS_MD_FILE_ATTR;
+ file_attr.fa_header.h_record_size = cpu_to_le16(sizeof(file_attr));
+ file_attr.fa_header.h_next_md_offset = cpu_to_le64(0);
+ file_attr.fa_size = cpu_to_le16((u16)value.len);
+ file_attr.fa_offset = cpu_to_le64(value_offset);
+ file_attr.fa_crc = cpu_to_le32(crc);
+
+ result = write_to_bf(bfc, value.data, value.len, value_offset);
+ if (result)
+ return result;
+
+ result = append_md_to_backing_file(bfc, &file_attr.fa_header);
+ if (result) {
+ /* Error, rollback file changes */
+ truncate_backing_file(bfc, value_offset);
+ } else if (attr) {
+ *attr = file_attr;
+ }
+
+ return result;
+}
+
+int incfs_write_signature_to_backing_file(struct backing_file_context *bfc,
+ struct mem_range sig, u32 tree_size)
+{
+ struct incfs_file_signature sg = {};
+ int result = 0;
+ loff_t rollback_pos = 0;
+ loff_t tree_area_pos = 0;
+ size_t alignment = 0;
+
+ if (!bfc)
+ return -EFAULT;
+
+ LOCK_REQUIRED(bfc->bc_mutex);
+
+ rollback_pos = incfs_get_end_offset(bfc->bc_file);
+
+ sg.sg_header.h_md_entry_type = INCFS_MD_SIGNATURE;
+ sg.sg_header.h_record_size = cpu_to_le16(sizeof(sg));
+ sg.sg_header.h_next_md_offset = cpu_to_le64(0);
+ if (sig.data != NULL && sig.len > 0) {
+ loff_t pos = incfs_get_end_offset(bfc->bc_file);
+
+ sg.sg_sig_size = cpu_to_le32(sig.len);
+ sg.sg_sig_offset = cpu_to_le64(pos);
+
+ result = write_to_bf(bfc, sig.data, sig.len, pos);
+ if (result)
+ goto err;
+ }
+
+ tree_area_pos = incfs_get_end_offset(bfc->bc_file);
+ if (tree_size > 0) {
+ if (tree_size > 5 * INCFS_DATA_FILE_BLOCK_SIZE) {
+ /*
+ * If hash tree is big enough, it makes sense to
+ * align in the backing file for faster access.
+ */
+ loff_t offset = round_up(tree_area_pos, PAGE_SIZE);
+
+ alignment = offset - tree_area_pos;
+ tree_area_pos = offset;
+ }
+
+ /*
+ * If root hash is not the only hash in the tree.
+ * reserve 0-filled space for the tree.
+ */
+ result = append_zeros(bfc, tree_size + alignment);
+ if (result)
+ goto err;
+
+ sg.sg_hash_tree_size = cpu_to_le32(tree_size);
+ sg.sg_hash_tree_offset = cpu_to_le64(tree_area_pos);
+ }
+
+ /* Write a hash tree metadata record pointing to the hash tree above. */
+ result = append_md_to_backing_file(bfc, &sg.sg_header);
+err:
+ if (result)
+ /* Error, rollback file changes */
+ truncate_backing_file(bfc, rollback_pos);
+ return result;
+}
+
+/*
+ * Write a backing file header
+ * It should always be called only on empty file.
+ * incfs_super_block.s_first_md_offset is 0 for now, but will be updated
+ * once first metadata record is added.
+ */
+int incfs_write_fh_to_backing_file(struct backing_file_context *bfc,
+ incfs_uuid_t *uuid, u64 file_size)
+{
+ struct incfs_file_header fh = {};
+ loff_t file_pos = 0;
+
+ if (!bfc)
+ return -EFAULT;
+
+ fh.fh_magic = cpu_to_le64(INCFS_MAGIC_NUMBER);
+ fh.fh_version = cpu_to_le64(INCFS_FORMAT_CURRENT_VER);
+ fh.fh_header_size = cpu_to_le16(sizeof(fh));
+ fh.fh_first_md_offset = cpu_to_le64(0);
+ fh.fh_data_block_size = cpu_to_le16(INCFS_DATA_FILE_BLOCK_SIZE);
+
+ fh.fh_file_size = cpu_to_le64(file_size);
+ fh.fh_uuid = *uuid;
+
+ LOCK_REQUIRED(bfc->bc_mutex);
+
+ file_pos = incfs_get_end_offset(bfc->bc_file);
+ if (file_pos != 0)
+ return -EEXIST;
+
+ return write_to_bf(bfc, &fh, sizeof(fh), file_pos);
+}
+
+/* Write a given data block and update file's blockmap to point it. */
+int incfs_write_data_block_to_backing_file(struct backing_file_context *bfc,
+ struct mem_range block, int block_index,
+ loff_t bm_base_off, u16 flags)
+{
+ struct incfs_blockmap_entry bm_entry = {};
+ int result = 0;
+ loff_t data_offset = 0;
+ loff_t bm_entry_off =
+ bm_base_off + sizeof(struct incfs_blockmap_entry) * block_index;
+
+ if (!bfc)
+ return -EFAULT;
+
+ if (block.len >= (1 << 16) || block_index < 0)
+ return -EINVAL;
+
+ LOCK_REQUIRED(bfc->bc_mutex);
+
+ data_offset = incfs_get_end_offset(bfc->bc_file);
+ if (data_offset <= bm_entry_off) {
+ /* Blockmap entry is beyond the file's end. It is not normal. */
+ return -EINVAL;
+ }
+
+ /* Write the block data at the end of the backing file. */
+ result = write_to_bf(bfc, block.data, block.len, data_offset);
+ if (result)
+ return result;
+
+ /* Update the blockmap to point to the newly written data. */
+ bm_entry.me_data_offset_lo = cpu_to_le32((u32)data_offset);
+ bm_entry.me_data_offset_hi = cpu_to_le16((u16)(data_offset >> 32));
+ bm_entry.me_data_size = cpu_to_le16((u16)block.len);
+ bm_entry.me_flags = cpu_to_le16(flags);
+
+ return write_to_bf(bfc, &bm_entry, sizeof(bm_entry),
+ bm_entry_off);
+}
+
+int incfs_write_hash_block_to_backing_file(struct backing_file_context *bfc,
+ struct mem_range block,
+ int block_index,
+ loff_t hash_area_off,
+ loff_t bm_base_off,
+ loff_t file_size)
+{
+ struct incfs_blockmap_entry bm_entry = {};
+ int result;
+ loff_t data_offset = 0;
+ loff_t file_end = 0;
+ loff_t bm_entry_off =
+ bm_base_off +
+ sizeof(struct incfs_blockmap_entry) *
+ (block_index + get_blocks_count_for_size(file_size));
+
+ if (!bfc)
+ return -EFAULT;
+
+ LOCK_REQUIRED(bfc->bc_mutex);
+
+ data_offset = hash_area_off + block_index * INCFS_DATA_FILE_BLOCK_SIZE;
+ file_end = incfs_get_end_offset(bfc->bc_file);
+ if (data_offset + block.len > file_end) {
+ /* Block is located beyond the file's end. It is not normal. */
+ return -EINVAL;
+ }
+
+ result = write_to_bf(bfc, block.data, block.len, data_offset);
+ if (result)
+ return result;
+
+ bm_entry.me_data_offset_lo = cpu_to_le32((u32)data_offset);
+ bm_entry.me_data_offset_hi = cpu_to_le16((u16)(data_offset >> 32));
+ bm_entry.me_data_size = cpu_to_le16(INCFS_DATA_FILE_BLOCK_SIZE);
+ bm_entry.me_flags = cpu_to_le16(INCFS_BLOCK_HASH);
+
+ return write_to_bf(bfc, &bm_entry, sizeof(bm_entry), bm_entry_off);
+}
+
+/* Initialize a new image in a given backing file. */
+int incfs_make_empty_backing_file(struct backing_file_context *bfc,
+ incfs_uuid_t *uuid, u64 file_size)
+{
+ int result = 0;
+
+ if (!bfc || !bfc->bc_file)
+ return -EFAULT;
+
+ result = mutex_lock_interruptible(&bfc->bc_mutex);
+ if (result)
+ goto out;
+
+ result = truncate_backing_file(bfc, 0);
+ if (result)
+ goto out;
+
+ result = incfs_write_fh_to_backing_file(bfc, uuid, file_size);
+out:
+ mutex_unlock(&bfc->bc_mutex);
+ return result;
+}
+
+int incfs_read_blockmap_entry(struct backing_file_context *bfc, int block_index,
+ loff_t bm_base_off,
+ struct incfs_blockmap_entry *bm_entry)
+{
+ int error = incfs_read_blockmap_entries(bfc, bm_entry, block_index, 1,
+ bm_base_off);
+
+ if (error < 0)
+ return error;
+
+ if (error == 0)
+ return -EIO;
+
+ if (error != 1)
+ return -EFAULT;
+
+ return 0;
+}
+
+int incfs_read_blockmap_entries(struct backing_file_context *bfc,
+ struct incfs_blockmap_entry *entries,
+ int start_index, int blocks_number,
+ loff_t bm_base_off)
+{
+ loff_t bm_entry_off =
+ bm_base_off + sizeof(struct incfs_blockmap_entry) * start_index;
+ const size_t bytes_to_read = sizeof(struct incfs_blockmap_entry)
+ * blocks_number;
+ int result = 0;
+
+ if (!bfc || !entries)
+ return -EFAULT;
+
+ if (start_index < 0 || bm_base_off <= 0)
+ return -ENODATA;
+
+ result = incfs_kread(bfc, entries, bytes_to_read, bm_entry_off);
+ if (result < 0)
+ return result;
+ return result / sizeof(*entries);
+}
+
+int incfs_read_file_header(struct backing_file_context *bfc,
+ loff_t *first_md_off, incfs_uuid_t *uuid,
+ u64 *file_size, u32 *flags)
+{
+ ssize_t bytes_read = 0;
+ struct incfs_file_header fh = {};
+
+ if (!bfc || !first_md_off)
+ return -EFAULT;
+
+ bytes_read = incfs_kread(bfc, &fh, sizeof(fh), 0);
+ if (bytes_read < 0)
+ return bytes_read;
+
+ if (bytes_read < sizeof(fh))
+ return -EBADMSG;
+
+ if (le64_to_cpu(fh.fh_magic) != INCFS_MAGIC_NUMBER)
+ return -EILSEQ;
+
+ if (le64_to_cpu(fh.fh_version) > INCFS_FORMAT_CURRENT_VER)
+ return -EILSEQ;
+
+ if (le16_to_cpu(fh.fh_data_block_size) != INCFS_DATA_FILE_BLOCK_SIZE)
+ return -EILSEQ;
+
+ if (le16_to_cpu(fh.fh_header_size) != sizeof(fh))
+ return -EILSEQ;
+
+ if (first_md_off)
+ *first_md_off = le64_to_cpu(fh.fh_first_md_offset);
+ if (uuid)
+ *uuid = fh.fh_uuid;
+ if (file_size)
+ *file_size = le64_to_cpu(fh.fh_file_size);
+ if (flags)
+ *flags = le32_to_cpu(fh.fh_file_header_flags);
+ return 0;
+}
+
+/*
+ * Read through metadata records from the backing file one by one
+ * and call provided metadata handlers.
+ */
+int incfs_read_next_metadata_record(struct backing_file_context *bfc,
+ struct metadata_handler *handler)
+{
+ const ssize_t max_md_size = INCFS_MAX_METADATA_RECORD_SIZE;
+ ssize_t bytes_read = 0;
+ size_t md_record_size = 0;
+ loff_t next_record = 0;
+ loff_t prev_record = 0;
+ int res = 0;
+ struct incfs_md_header *md_hdr = NULL;
+
+ if (!bfc || !handler)
+ return -EFAULT;
+
+ LOCK_REQUIRED(bfc->bc_mutex);
+
+ if (handler->md_record_offset == 0)
+ return -EPERM;
+
+ memset(&handler->md_buffer, 0, max_md_size);
+ bytes_read = incfs_kread(bfc, &handler->md_buffer, max_md_size,
+ handler->md_record_offset);
+ if (bytes_read < 0)
+ return bytes_read;
+ if (bytes_read < sizeof(*md_hdr))
+ return -EBADMSG;
+
+ md_hdr = &handler->md_buffer.md_header;
+ next_record = le64_to_cpu(md_hdr->h_next_md_offset);
+ prev_record = le64_to_cpu(md_hdr->h_prev_md_offset);
+ md_record_size = le16_to_cpu(md_hdr->h_record_size);
+
+ if (md_record_size > max_md_size) {
+ pr_warn("incfs: The record is too large. Size: %ld",
+ md_record_size);
+ return -EBADMSG;
+ }
+
+ if (bytes_read < md_record_size) {
+ pr_warn("incfs: The record hasn't been fully read.");
+ return -EBADMSG;
+ }
+
+ if (next_record <= handler->md_record_offset && next_record != 0) {
+ pr_warn("incfs: Next record (%lld) points back in file.",
+ next_record);
+ return -EBADMSG;
+ }
+
+ if (prev_record != handler->md_prev_record_offset) {
+ pr_warn("incfs: Metadata chain has been corrupted.");
+ return -EBADMSG;
+ }
+
+ if (le32_to_cpu(md_hdr->h_record_crc) != calc_md_crc(md_hdr)) {
+ pr_warn("incfs: Metadata CRC mismatch.");
+ return -EBADMSG;
+ }
+
+ switch (md_hdr->h_md_entry_type) {
+ case INCFS_MD_NONE:
+ break;
+ case INCFS_MD_BLOCK_MAP:
+ if (handler->handle_blockmap)
+ res = handler->handle_blockmap(
+ &handler->md_buffer.blockmap, handler);
+ break;
+ case INCFS_MD_FILE_ATTR:
+ if (handler->handle_file_attr)
+ res = handler->handle_file_attr(
+ &handler->md_buffer.file_attr, handler);
+ break;
+ case INCFS_MD_SIGNATURE:
+ if (handler->handle_signature)
+ res = handler->handle_signature(
+ &handler->md_buffer.signature, handler);
+ break;
+ default:
+ res = -ENOTSUPP;
+ break;
+ }
+
+ if (!res) {
+ if (next_record == 0) {
+ /*
+ * Zero offset for the next record means that the last
+ * metadata record has just been processed.
+ */
+ bfc->bc_last_md_record_offset =
+ handler->md_record_offset;
+ }
+ handler->md_prev_record_offset = handler->md_record_offset;
+ handler->md_record_offset = next_record;
+ }
+ return res;
+}
+
+ssize_t incfs_kread(struct backing_file_context *bfc, void *buf, size_t size,
+ loff_t pos)
+{
+ const struct cred *old_cred = override_creds(bfc->bc_cred);
+ int ret = kernel_read(bfc->bc_file, buf, size, &pos);
+
+ revert_creds(old_cred);
+ return ret;
+}
+
+ssize_t incfs_kwrite(struct backing_file_context *bfc, const void *buf,
+ size_t size, loff_t pos)
+{
+ const struct cred *old_cred = override_creds(bfc->bc_cred);
+ int ret = kernel_write(bfc->bc_file, buf, size, &pos);
+
+ revert_creds(old_cred);
+ return ret;
+}
diff --git a/fs/incfs/format.h b/fs/incfs/format.h
new file mode 100644
index 0000000..a6d3aef
--- /dev/null
+++ b/fs/incfs/format.h
@@ -0,0 +1,351 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2018 Google LLC
+ */
+
+/*
+ * Overview
+ * --------
+ * The backbone of the incremental-fs ondisk format is an append only linked
+ * list of metadata blocks. Each metadata block contains an offset of the next
+ * one. These blocks describe files and directories on the
+ * file system. They also represent actions of adding and removing file names
+ * (hard links).
+ *
+ * Every time incremental-fs instance is mounted, it reads through this list
+ * to recreate filesystem's state in memory. An offset of the first record in
+ * the metadata list is stored in the superblock at the beginning of the backing
+ * file.
+ *
+ * Most of the backing file is taken by data areas and blockmaps.
+ * Since data blocks can be compressed and have different sizes,
+ * single per-file data area can't be pre-allocated. That's why blockmaps are
+ * needed in order to find a location and size of each data block in
+ * the backing file. Each time a file is created, a corresponding block map is
+ * allocated to store future offsets of data blocks.
+ *
+ * Whenever a data block is given by data loader to incremental-fs:
+ * - A data area with the given block is appended to the end of
+ * the backing file.
+ * - A record in the blockmap for the given block index is updated to reflect
+ * its location, size, and compression algorithm.
+
+ * Metadata records
+ * ----------------
+ * incfs_blockmap - metadata record that specifies size and location
+ * of a blockmap area for a given file. This area
+ * contains an array of incfs_blockmap_entry-s.
+ * incfs_file_signature - metadata record that specifies where file signature
+ * and its hash tree can be found in the backing file.
+ *
+ * incfs_file_attr - metadata record that specifies where additional file
+ * attributes blob can be found.
+ *
+ * Metadata header
+ * ---------------
+ * incfs_md_header - header of a metadata record. It's always a part
+ * of other structures and served purpose of metadata
+ * bookkeeping.
+ *
+ * +-----------------------------------------------+ ^
+ * | incfs_md_header | |
+ * | 1. type of body(BLOCKMAP, FILE_ATTR..) | |
+ * | 2. size of the whole record header + body | |
+ * | 3. CRC the whole record header + body | |
+ * | 4. offset of the previous md record |]------+
+ * | 5. offset of the next md record (md link) |]---+
+ * +-----------------------------------------------+ |
+ * | Metadata record body with useful data | |
+ * +-----------------------------------------------+ |
+ * +--->
+ *
+ * Other ondisk structures
+ * -----------------------
+ * incfs_super_block - backing file header
+ * incfs_blockmap_entry - a record in a blockmap area that describes size
+ * and location of a data block.
+ * Data blocks dont have any particular structure, they are written to the
+ * backing file in a raw form as they come from a data loader.
+ *
+ * Backing file layout
+ * -------------------
+ *
+ *
+ * +-------------------------------------------+
+ * | incfs_super_block |]---+
+ * +-------------------------------------------+ |
+ * | metadata |<---+
+ * | incfs_file_signature |]---+
+ * +-------------------------------------------+ |
+ * ......................... |
+ * +-------------------------------------------+ | metadata
+ * +------->| blockmap area | | list links
+ * | | [incfs_blockmap_entry] | |
+ * | | [incfs_blockmap_entry] | |
+ * | | [incfs_blockmap_entry] | |
+ * | +--[| [incfs_blockmap_entry] | |
+ * | | | [incfs_blockmap_entry] | |
+ * | | | [incfs_blockmap_entry] | |
+ * | | +-------------------------------------------+ |
+ * | | ......................... |
+ * | | +-------------------------------------------+ |
+ * | | | metadata |<---+
+ * +----|--[| incfs_blockmap |]---+
+ * | +-------------------------------------------+ |
+ * | ......................... |
+ * | +-------------------------------------------+ |
+ * +-->| data block | |
+ * +-------------------------------------------+ |
+ * ......................... |
+ * +-------------------------------------------+ |
+ * | metadata |<---+
+ * | incfs_file_attr |
+ * +-------------------------------------------+
+ */
+#ifndef _INCFS_FORMAT_H
+#define _INCFS_FORMAT_H
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <uapi/linux/incrementalfs.h>
+
+#include "internal.h"
+
+#define INCFS_MAX_NAME_LEN 255
+#define INCFS_FORMAT_V1 1
+#define INCFS_FORMAT_CURRENT_VER INCFS_FORMAT_V1
+
+enum incfs_metadata_type {
+ INCFS_MD_NONE = 0,
+ INCFS_MD_BLOCK_MAP = 1,
+ INCFS_MD_FILE_ATTR = 2,
+ INCFS_MD_SIGNATURE = 3
+};
+
+enum incfs_file_header_flags {
+ INCFS_FILE_COMPLETE = 1 << 0,
+};
+
+/* Header included at the beginning of all metadata records on the disk. */
+struct incfs_md_header {
+ __u8 h_md_entry_type;
+
+ /*
+ * Size of the metadata record.
+ * (e.g. inode, dir entry etc) not just this struct.
+ */
+ __le16 h_record_size;
+
+ /*
+ * CRC32 of the metadata record.
+ * (e.g. inode, dir entry etc) not just this struct.
+ */
+ __le32 h_record_crc;
+
+ /* Offset of the next metadata entry if any */
+ __le64 h_next_md_offset;
+
+ /* Offset of the previous metadata entry if any */
+ __le64 h_prev_md_offset;
+
+} __packed;
+
+/* Backing file header */
+struct incfs_file_header {
+ /* Magic number: INCFS_MAGIC_NUMBER */
+ __le64 fh_magic;
+
+ /* Format version: INCFS_FORMAT_CURRENT_VER */
+ __le64 fh_version;
+
+ /* sizeof(incfs_file_header) */
+ __le16 fh_header_size;
+
+ /* INCFS_DATA_FILE_BLOCK_SIZE */
+ __le16 fh_data_block_size;
+
+ /* File flags, from incfs_file_header_flags */
+ __le32 fh_file_header_flags;
+
+ /* Offset of the first metadata record */
+ __le64 fh_first_md_offset;
+
+ /*
+ * Put file specific information after this point
+ */
+
+ /* Full size of the file's content */
+ __le64 fh_file_size;
+
+ /* File uuid */
+ incfs_uuid_t fh_uuid;
+} __packed;
+
+enum incfs_block_map_entry_flags {
+ INCFS_BLOCK_COMPRESSED_LZ4 = (1 << 0),
+ INCFS_BLOCK_HASH = (1 << 1),
+};
+
+/* Block map entry pointing to an actual location of the data block. */
+struct incfs_blockmap_entry {
+ /* Offset of the actual data block. Lower 32 bits */
+ __le32 me_data_offset_lo;
+
+ /* Offset of the actual data block. Higher 16 bits */
+ __le16 me_data_offset_hi;
+
+ /* How many bytes the data actually occupies in the backing file */
+ __le16 me_data_size;
+
+ /* Block flags from incfs_block_map_entry_flags */
+ __le16 me_flags;
+} __packed;
+
+/* Metadata record for locations of file blocks. Type = INCFS_MD_BLOCK_MAP */
+struct incfs_blockmap {
+ struct incfs_md_header m_header;
+
+ /* Base offset of the array of incfs_blockmap_entry */
+ __le64 m_base_offset;
+
+ /* Size of the map entry array in blocks */
+ __le32 m_block_count;
+} __packed;
+
+/* Metadata record for file attribute. Type = INCFS_MD_FILE_ATTR */
+struct incfs_file_attr {
+ struct incfs_md_header fa_header;
+
+ __le64 fa_offset;
+
+ __le16 fa_size;
+
+ __le32 fa_crc;
+} __packed;
+
+/* Metadata record for file signature. Type = INCFS_MD_SIGNATURE */
+struct incfs_file_signature {
+ struct incfs_md_header sg_header;
+
+ __le32 sg_sig_size; /* The size of the signature. */
+
+ __le64 sg_sig_offset; /* Signature's offset in the backing file */
+
+ __le32 sg_hash_tree_size; /* The size of the hash tree. */
+
+ __le64 sg_hash_tree_offset; /* Hash tree offset in the backing file */
+} __packed;
+
+/* In memory version of above */
+struct incfs_df_signature {
+ u32 sig_size;
+ u64 sig_offset;
+ u32 hash_size;
+ u64 hash_offset;
+};
+
+/* State of the backing file. */
+struct backing_file_context {
+ /* Protects writes to bc_file */
+ struct mutex bc_mutex;
+
+ /* File object to read data from */
+ struct file *bc_file;
+
+ /*
+ * Offset of the last known metadata record in the backing file.
+ * 0 means there are no metadata records.
+ */
+ loff_t bc_last_md_record_offset;
+
+ /*
+ * Credentials to set before reads/writes
+ * Note that this is a pointer to the mount_info mi_owner field so
+ * there is no need to get/put the creds
+ */
+ const struct cred *bc_cred;
+};
+
+struct metadata_handler {
+ loff_t md_record_offset;
+ loff_t md_prev_record_offset;
+ void *context;
+
+ union {
+ struct incfs_md_header md_header;
+ struct incfs_blockmap blockmap;
+ struct incfs_file_attr file_attr;
+ struct incfs_file_signature signature;
+ } md_buffer;
+
+ int (*handle_blockmap)(struct incfs_blockmap *bm,
+ struct metadata_handler *handler);
+ int (*handle_file_attr)(struct incfs_file_attr *fa,
+ struct metadata_handler *handler);
+ int (*handle_signature)(struct incfs_file_signature *sig,
+ struct metadata_handler *handler);
+};
+#define INCFS_MAX_METADATA_RECORD_SIZE \
+ FIELD_SIZEOF(struct metadata_handler, md_buffer)
+
+loff_t incfs_get_end_offset(struct file *f);
+
+/* Backing file context management */
+struct mount_info;
+struct backing_file_context *incfs_alloc_bfc(struct mount_info *mi,
+ struct file *backing_file);
+
+void incfs_free_bfc(struct backing_file_context *bfc);
+
+/* Writing stuff */
+int incfs_write_blockmap_to_backing_file(struct backing_file_context *bfc,
+ u32 block_count);
+
+int incfs_write_fh_to_backing_file(struct backing_file_context *bfc,
+ incfs_uuid_t *uuid, u64 file_size);
+
+int incfs_write_data_block_to_backing_file(struct backing_file_context *bfc,
+ struct mem_range block,
+ int block_index, loff_t bm_base_off,
+ u16 flags);
+
+int incfs_write_hash_block_to_backing_file(struct backing_file_context *bfc,
+ struct mem_range block,
+ int block_index,
+ loff_t hash_area_off,
+ loff_t bm_base_off,
+ loff_t file_size);
+
+int incfs_write_file_attr_to_backing_file(struct backing_file_context *bfc,
+ struct mem_range value, struct incfs_file_attr *attr);
+
+int incfs_write_signature_to_backing_file(struct backing_file_context *bfc,
+ struct mem_range sig, u32 tree_size);
+
+int incfs_write_file_header_flags(struct backing_file_context *bfc, u32 flags);
+
+int incfs_make_empty_backing_file(struct backing_file_context *bfc,
+ incfs_uuid_t *uuid, u64 file_size);
+
+/* Reading stuff */
+int incfs_read_file_header(struct backing_file_context *bfc,
+ loff_t *first_md_off, incfs_uuid_t *uuid,
+ u64 *file_size, u32 *flags);
+
+int incfs_read_blockmap_entry(struct backing_file_context *bfc, int block_index,
+ loff_t bm_base_off,
+ struct incfs_blockmap_entry *bm_entry);
+
+int incfs_read_blockmap_entries(struct backing_file_context *bfc,
+ struct incfs_blockmap_entry *entries,
+ int start_index, int blocks_number,
+ loff_t bm_base_off);
+
+int incfs_read_next_metadata_record(struct backing_file_context *bfc,
+ struct metadata_handler *handler);
+
+ssize_t incfs_kread(struct backing_file_context *bfc, void *buf, size_t size,
+ loff_t pos);
+ssize_t incfs_kwrite(struct backing_file_context *bfc, const void *buf,
+ size_t size, loff_t pos);
+
+#endif /* _INCFS_FORMAT_H */
diff --git a/fs/incfs/integrity.c b/fs/incfs/integrity.c
new file mode 100644
index 0000000..bce319e
--- /dev/null
+++ b/fs/incfs/integrity.c
@@ -0,0 +1,235 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2019 Google LLC
+ */
+#include <crypto/sha.h>
+#include <crypto/hash.h>
+#include <linux/err.h>
+#include <linux/version.h>
+
+#include "integrity.h"
+
+struct incfs_hash_alg *incfs_get_hash_alg(enum incfs_hash_tree_algorithm id)
+{
+ static struct incfs_hash_alg sha256 = {
+ .name = "sha256",
+ .digest_size = SHA256_DIGEST_SIZE,
+ .id = INCFS_HASH_TREE_SHA256
+ };
+ struct incfs_hash_alg *result = NULL;
+ struct crypto_shash *shash;
+
+ if (id == INCFS_HASH_TREE_SHA256) {
+ BUILD_BUG_ON(INCFS_MAX_HASH_SIZE < SHA256_DIGEST_SIZE);
+ result = &sha256;
+ }
+
+ if (result == NULL)
+ return ERR_PTR(-ENOENT);
+
+ /* pairs with cmpxchg_release() below */
+ shash = smp_load_acquire(&result->shash);
+ if (shash)
+ return result;
+
+ shash = crypto_alloc_shash(result->name, 0, 0);
+ if (IS_ERR(shash)) {
+ int err = PTR_ERR(shash);
+
+ pr_err("Can't allocate hash alg %s, error code:%d",
+ result->name, err);
+ return ERR_PTR(err);
+ }
+
+ /* pairs with smp_load_acquire() above */
+ if (cmpxchg_release(&result->shash, NULL, shash) != NULL)
+ crypto_free_shash(shash);
+
+ return result;
+}
+
+struct signature_info {
+ u32 version;
+ enum incfs_hash_tree_algorithm hash_algorithm;
+ u8 log2_blocksize;
+ struct mem_range salt;
+ struct mem_range root_hash;
+};
+
+static bool read_u32(u8 **p, u8 *top, u32 *result)
+{
+ if (*p + sizeof(u32) > top)
+ return false;
+
+ *result = le32_to_cpu(*(__le32 *)*p);
+ *p += sizeof(u32);
+ return true;
+}
+
+static bool read_u8(u8 **p, u8 *top, u8 *result)
+{
+ if (*p + sizeof(u8) > top)
+ return false;
+
+ *result = *(u8 *)*p;
+ *p += sizeof(u8);
+ return true;
+}
+
+static bool read_mem_range(u8 **p, u8 *top, struct mem_range *range)
+{
+ u32 len;
+
+ if (!read_u32(p, top, &len) || *p + len > top)
+ return false;
+
+ range->len = len;
+ range->data = *p;
+ *p += len;
+ return true;
+}
+
+static int incfs_parse_signature(struct mem_range signature,
+ struct signature_info *si)
+{
+ u8 *p = signature.data;
+ u8 *top = signature.data + signature.len;
+ u32 hash_section_size;
+
+ if (signature.len > INCFS_MAX_SIGNATURE_SIZE)
+ return -EINVAL;
+
+ if (!read_u32(&p, top, &si->version) ||
+ si->version != INCFS_SIGNATURE_VERSION)
+ return -EINVAL;
+
+ if (!read_u32(&p, top, &hash_section_size) ||
+ p + hash_section_size > top)
+ return -EINVAL;
+ top = p + hash_section_size;
+
+ if (!read_u32(&p, top, &si->hash_algorithm) ||
+ si->hash_algorithm != INCFS_HASH_TREE_SHA256)
+ return -EINVAL;
+
+ if (!read_u8(&p, top, &si->log2_blocksize) || si->log2_blocksize != 12)
+ return -EINVAL;
+
+ if (!read_mem_range(&p, top, &si->salt))
+ return -EINVAL;
+
+ if (!read_mem_range(&p, top, &si->root_hash))
+ return -EINVAL;
+
+ if (p != top)
+ return -EINVAL;
+
+ return 0;
+}
+
+struct mtree *incfs_alloc_mtree(struct mem_range signature,
+ int data_block_count)
+{
+ int error;
+ struct signature_info si;
+ struct mtree *result = NULL;
+ struct incfs_hash_alg *hash_alg = NULL;
+ int hash_per_block;
+ int lvl;
+ int total_blocks = 0;
+ int blocks_in_level[INCFS_MAX_MTREE_LEVELS];
+ int blocks = data_block_count;
+
+ if (data_block_count <= 0)
+ return ERR_PTR(-EINVAL);
+
+ error = incfs_parse_signature(signature, &si);
+ if (error)
+ return ERR_PTR(error);
+
+ hash_alg = incfs_get_hash_alg(si.hash_algorithm);
+ if (IS_ERR(hash_alg))
+ return ERR_PTR(PTR_ERR(hash_alg));
+
+ if (si.root_hash.len < hash_alg->digest_size)
+ return ERR_PTR(-EINVAL);
+
+ result = kzalloc(sizeof(*result), GFP_NOFS);
+ if (!result)
+ return ERR_PTR(-ENOMEM);
+
+ result->alg = hash_alg;
+ hash_per_block = INCFS_DATA_FILE_BLOCK_SIZE / result->alg->digest_size;
+
+ /* Calculating tree geometry. */
+ /* First pass: calculate how many blocks in each tree level. */
+ for (lvl = 0; blocks > 1; lvl++) {
+ if (lvl >= INCFS_MAX_MTREE_LEVELS) {
+ pr_err("incfs: too much data in mtree");
+ goto err;
+ }
+
+ blocks = (blocks + hash_per_block - 1) / hash_per_block;
+ blocks_in_level[lvl] = blocks;
+ total_blocks += blocks;
+ }
+ result->depth = lvl;
+ result->hash_tree_area_size = total_blocks * INCFS_DATA_FILE_BLOCK_SIZE;
+ if (result->hash_tree_area_size > INCFS_MAX_HASH_AREA_SIZE)
+ goto err;
+
+ blocks = 0;
+ /* Second pass: calculate offset of each level. 0th level goes last. */
+ for (lvl = 0; lvl < result->depth; lvl++) {
+ u32 suboffset;
+
+ blocks += blocks_in_level[lvl];
+ suboffset = (total_blocks - blocks)
+ * INCFS_DATA_FILE_BLOCK_SIZE;
+
+ result->hash_level_suboffset[lvl] = suboffset;
+ }
+
+ /* Root hash is stored separately from the rest of the tree. */
+ memcpy(result->root_hash, si.root_hash.data, hash_alg->digest_size);
+ return result;
+
+err:
+ kfree(result);
+ return ERR_PTR(-E2BIG);
+}
+
+void incfs_free_mtree(struct mtree *tree)
+{
+ kfree(tree);
+}
+
+int incfs_calc_digest(struct incfs_hash_alg *alg, struct mem_range data,
+ struct mem_range digest)
+{
+ SHASH_DESC_ON_STACK(desc, alg->shash);
+
+ if (!alg || !alg->shash || !data.data || !digest.data)
+ return -EFAULT;
+
+ if (alg->digest_size > digest.len)
+ return -EINVAL;
+
+ desc->tfm = alg->shash;
+
+ if (data.len < INCFS_DATA_FILE_BLOCK_SIZE) {
+ int err;
+ void *buf = kzalloc(INCFS_DATA_FILE_BLOCK_SIZE, GFP_NOFS);
+
+ if (!buf)
+ return -ENOMEM;
+
+ memcpy(buf, data.data, data.len);
+ err = crypto_shash_digest(desc, buf, INCFS_DATA_FILE_BLOCK_SIZE,
+ digest.data);
+ kfree(buf);
+ return err;
+ }
+ return crypto_shash_digest(desc, data.data, data.len, digest.data);
+}
+
diff --git a/fs/incfs/integrity.h b/fs/incfs/integrity.h
new file mode 100644
index 0000000..cf79b64
--- /dev/null
+++ b/fs/incfs/integrity.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2019 Google LLC
+ */
+#ifndef _INCFS_INTEGRITY_H
+#define _INCFS_INTEGRITY_H
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <crypto/hash.h>
+
+#include <uapi/linux/incrementalfs.h>
+
+#include "internal.h"
+
+#define INCFS_MAX_MTREE_LEVELS 8
+#define INCFS_MAX_HASH_AREA_SIZE (1280 * 1024 * 1024)
+
+struct incfs_hash_alg {
+ const char *name;
+ int digest_size;
+ enum incfs_hash_tree_algorithm id;
+
+ struct crypto_shash *shash;
+};
+
+/* Merkle tree structure. */
+struct mtree {
+ struct incfs_hash_alg *alg;
+
+ u8 root_hash[INCFS_MAX_HASH_SIZE];
+
+ /* Offset of each hash level in the hash area. */
+ u32 hash_level_suboffset[INCFS_MAX_MTREE_LEVELS];
+
+ u32 hash_tree_area_size;
+
+ /* Number of levels in hash_level_suboffset */
+ int depth;
+};
+
+struct incfs_hash_alg *incfs_get_hash_alg(enum incfs_hash_tree_algorithm id);
+
+struct mtree *incfs_alloc_mtree(struct mem_range signature,
+ int data_block_count);
+
+void incfs_free_mtree(struct mtree *tree);
+
+size_t incfs_get_mtree_depth(enum incfs_hash_tree_algorithm alg, loff_t size);
+
+size_t incfs_get_mtree_hash_count(enum incfs_hash_tree_algorithm alg,
+ loff_t size);
+
+int incfs_calc_digest(struct incfs_hash_alg *alg, struct mem_range data,
+ struct mem_range digest);
+
+#endif /* _INCFS_INTEGRITY_H */
diff --git a/fs/incfs/internal.h b/fs/incfs/internal.h
new file mode 100644
index 0000000..0a85eae
--- /dev/null
+++ b/fs/incfs/internal.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2018 Google LLC
+ */
+#ifndef _INCFS_INTERNAL_H
+#define _INCFS_INTERNAL_H
+#include <linux/types.h>
+
+struct mem_range {
+ u8 *data;
+ size_t len;
+};
+
+static inline struct mem_range range(u8 *data, size_t len)
+{
+ return (struct mem_range){ .data = data, .len = len };
+}
+
+#define LOCK_REQUIRED(lock) WARN_ON_ONCE(!mutex_is_locked(&lock))
+
+#endif /* _INCFS_INTERNAL_H */
diff --git a/fs/incfs/main.c b/fs/incfs/main.c
new file mode 100644
index 0000000..aac87b1
--- /dev/null
+++ b/fs/incfs/main.c
@@ -0,0 +1,113 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2018 Google LLC
+ */
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/module.h>
+
+#include <uapi/linux/incrementalfs.h>
+
+#include "vfs.h"
+
+#define INCFS_NODE_FEATURES "features"
+
+static struct file_system_type incfs_fs_type = {
+ .owner = THIS_MODULE,
+ .name = INCFS_NAME,
+ .mount = incfs_mount_fs,
+ .kill_sb = incfs_kill_sb,
+ .fs_flags = 0
+};
+
+static struct kobject *sysfs_root, *featurefs_root;
+
+static ssize_t corefs_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buff)
+{
+ return snprintf(buff, PAGE_SIZE, "supported\n");
+}
+
+static struct kobj_attribute corefs_attr = __ATTR_RO(corefs);
+
+static ssize_t mounter_context_for_backing_rw_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buff)
+{
+ return snprintf(buff, PAGE_SIZE, "supported\n");
+}
+
+static struct kobj_attribute mounter_context_for_backing_rw_attr =
+ __ATTR_RO(mounter_context_for_backing_rw);
+
+static struct attribute *attributes[] = {
+ &corefs_attr.attr,
+ &mounter_context_for_backing_rw_attr.attr,
+ NULL,
+};
+
+static const struct attribute_group attr_group = {
+ .attrs = attributes,
+};
+
+static int __init init_sysfs(void)
+{
+ int res = 0;
+
+ sysfs_root = kobject_create_and_add(INCFS_NAME, fs_kobj);
+ if (!sysfs_root)
+ return -ENOMEM;
+
+ featurefs_root = kobject_create_and_add(INCFS_NODE_FEATURES,
+ sysfs_root);
+ if (!featurefs_root)
+ return -ENOMEM;
+
+ res = sysfs_create_group(featurefs_root, &attr_group);
+ if (res) {
+ kobject_put(sysfs_root);
+ sysfs_root = NULL;
+ }
+ return res;
+}
+
+static void cleanup_sysfs(void)
+{
+ if (featurefs_root) {
+ sysfs_remove_group(featurefs_root, &attr_group);
+ kobject_put(featurefs_root);
+ featurefs_root = NULL;
+ }
+
+ if (sysfs_root) {
+ kobject_put(sysfs_root);
+ sysfs_root = NULL;
+ }
+}
+
+static int __init init_incfs_module(void)
+{
+ int err = 0;
+
+ err = init_sysfs();
+ if (err)
+ return err;
+
+ err = register_filesystem(&incfs_fs_type);
+ if (err)
+ cleanup_sysfs();
+
+ return err;
+}
+
+static void __exit cleanup_incfs_module(void)
+{
+ cleanup_sysfs();
+ unregister_filesystem(&incfs_fs_type);
+}
+
+module_init(init_incfs_module);
+module_exit(cleanup_incfs_module);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Eugene Zemtsov <ezemtsov@google.com>");
+MODULE_DESCRIPTION("Incremental File System");
diff --git a/fs/incfs/vfs.c b/fs/incfs/vfs.c
new file mode 100644
index 0000000..9e33595
--- /dev/null
+++ b/fs/incfs/vfs.c
@@ -0,0 +1,2309 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2018 Google LLC
+ */
+
+#include <linux/blkdev.h>
+#include <linux/cred.h>
+#include <linux/eventpoll.h>
+#include <linux/file.h>
+#include <linux/fs.h>
+#include <linux/fs_stack.h>
+#include <linux/namei.h>
+#include <linux/parser.h>
+#include <linux/poll.h>
+#include <linux/seq_file.h>
+#include <linux/syscalls.h>
+#include <linux/xattr.h>
+
+#include <uapi/linux/incrementalfs.h>
+
+#include "vfs.h"
+#include "data_mgmt.h"
+#include "format.h"
+#include "integrity.h"
+#include "internal.h"
+
+#define INCFS_PENDING_READS_INODE 2
+#define INCFS_LOG_INODE 3
+#define INCFS_START_INO_RANGE 10
+#define READ_FILE_MODE 0444
+#define READ_EXEC_FILE_MODE 0555
+#define READ_WRITE_FILE_MODE 0666
+
+static int incfs_remount_fs(struct super_block *sb, int *flags, char *data);
+
+static int dentry_revalidate(struct dentry *dentry, unsigned int flags);
+static void dentry_release(struct dentry *d);
+
+static int iterate_incfs_dir(struct file *file, struct dir_context *ctx);
+static struct dentry *dir_lookup(struct inode *dir_inode,
+ struct dentry *dentry, unsigned int flags);
+static int dir_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
+static int dir_unlink(struct inode *dir, struct dentry *dentry);
+static int dir_link(struct dentry *old_dentry, struct inode *dir,
+ struct dentry *new_dentry);
+static int dir_rmdir(struct inode *dir, struct dentry *dentry);
+static int dir_rename(struct inode *old_dir, struct dentry *old_dentry,
+ struct inode *new_dir, struct dentry *new_dentry);
+
+static int file_open(struct inode *inode, struct file *file);
+static int file_release(struct inode *inode, struct file *file);
+static int read_single_page(struct file *f, struct page *page);
+static long dispatch_ioctl(struct file *f, unsigned int req, unsigned long arg);
+
+static ssize_t pending_reads_read(struct file *f, char __user *buf, size_t len,
+ loff_t *ppos);
+static __poll_t pending_reads_poll(struct file *file, poll_table *wait);
+static int pending_reads_open(struct inode *inode, struct file *file);
+static int pending_reads_release(struct inode *, struct file *);
+
+static ssize_t log_read(struct file *f, char __user *buf, size_t len,
+ loff_t *ppos);
+static __poll_t log_poll(struct file *file, poll_table *wait);
+static int log_open(struct inode *inode, struct file *file);
+static int log_release(struct inode *, struct file *);
+
+static struct inode *alloc_inode(struct super_block *sb);
+static void free_inode(struct inode *inode);
+static void evict_inode(struct inode *inode);
+
+static int incfs_setattr(struct dentry *dentry, struct iattr *ia);
+static ssize_t incfs_getxattr(struct dentry *d, const char *name,
+ void *value, size_t size);
+static ssize_t incfs_setxattr(struct dentry *d, const char *name,
+ const void *value, size_t size, int flags);
+static ssize_t incfs_listxattr(struct dentry *d, char *list, size_t size);
+
+static int show_options(struct seq_file *, struct dentry *);
+
+static const struct super_operations incfs_super_ops = {
+ .statfs = simple_statfs,
+ .remount_fs = incfs_remount_fs,
+ .alloc_inode = alloc_inode,
+ .destroy_inode = free_inode,
+ .evict_inode = evict_inode,
+ .show_options = show_options
+};
+
+static int dir_rename_wrap(struct inode *old_dir, struct dentry *old_dentry,
+ struct inode *new_dir, struct dentry *new_dentry,
+ unsigned int flags)
+{
+ return dir_rename(old_dir, old_dentry, new_dir, new_dentry);
+}
+
+static const struct inode_operations incfs_dir_inode_ops = {
+ .lookup = dir_lookup,
+ .mkdir = dir_mkdir,
+ .rename = dir_rename_wrap,
+ .unlink = dir_unlink,
+ .link = dir_link,
+ .rmdir = dir_rmdir,
+ .setattr = incfs_setattr,
+};
+
+static const struct file_operations incfs_dir_fops = {
+ .llseek = generic_file_llseek,
+ .read = generic_read_dir,
+ .iterate = iterate_incfs_dir,
+ .open = file_open,
+ .release = file_release,
+ .unlocked_ioctl = dispatch_ioctl,
+ .compat_ioctl = dispatch_ioctl
+};
+
+static const struct dentry_operations incfs_dentry_ops = {
+ .d_revalidate = dentry_revalidate,
+ .d_release = dentry_release
+};
+
+static const struct address_space_operations incfs_address_space_ops = {
+ .readpage = read_single_page,
+ /* .readpages = readpages */
+};
+
+static const struct file_operations incfs_file_ops = {
+ .open = file_open,
+ .release = file_release,
+ .read_iter = generic_file_read_iter,
+ .mmap = generic_file_mmap,
+ .splice_read = generic_file_splice_read,
+ .llseek = generic_file_llseek,
+ .unlocked_ioctl = dispatch_ioctl,
+ .compat_ioctl = dispatch_ioctl
+};
+
+enum FILL_PERMISSION {
+ CANT_FILL = 0,
+ CAN_FILL = 1,
+};
+
+static const struct file_operations incfs_pending_read_file_ops = {
+ .read = pending_reads_read,
+ .poll = pending_reads_poll,
+ .open = pending_reads_open,
+ .release = pending_reads_release,
+ .llseek = noop_llseek,
+ .unlocked_ioctl = dispatch_ioctl,
+ .compat_ioctl = dispatch_ioctl
+};
+
+static const struct file_operations incfs_log_file_ops = {
+ .read = log_read,
+ .poll = log_poll,
+ .open = log_open,
+ .release = log_release,
+ .llseek = noop_llseek,
+ .unlocked_ioctl = dispatch_ioctl,
+ .compat_ioctl = dispatch_ioctl
+};
+
+static const struct inode_operations incfs_file_inode_ops = {
+ .setattr = incfs_setattr,
+ .getattr = simple_getattr,
+ .listxattr = incfs_listxattr
+};
+
+static int incfs_handler_getxattr(const struct xattr_handler *xh,
+ struct dentry *d, struct inode *inode,
+ const char *name, void *buffer, size_t size)
+{
+ return incfs_getxattr(d, name, buffer, size);
+}
+
+static int incfs_handler_setxattr(const struct xattr_handler *xh,
+ struct dentry *d, struct inode *inode,
+ const char *name, const void *buffer,
+ size_t size, int flags)
+{
+ return incfs_setxattr(d, name, buffer, size, flags);
+}
+
+static const struct xattr_handler incfs_xattr_handler = {
+ .prefix = "", /* AKA all attributes */
+ .get = incfs_handler_getxattr,
+ .set = incfs_handler_setxattr,
+};
+
+static const struct xattr_handler *incfs_xattr_ops[] = {
+ &incfs_xattr_handler,
+ NULL,
+};
+
+/* State of an open .pending_reads file, unique for each file descriptor. */
+struct pending_reads_state {
+ /* A serial number of the last pending read obtained from this file. */
+ int last_pending_read_sn;
+};
+
+/* State of an open .log file, unique for each file descriptor. */
+struct log_file_state {
+ struct read_log_state state;
+};
+
+struct inode_search {
+ unsigned long ino;
+
+ struct dentry *backing_dentry;
+
+ size_t size;
+};
+
+enum parse_parameter {
+ Opt_read_timeout,
+ Opt_readahead_pages,
+ Opt_no_backing_file_cache,
+ Opt_no_backing_file_readahead,
+ Opt_rlog_pages,
+ Opt_rlog_wakeup_cnt,
+ Opt_err
+};
+
+static const char pending_reads_file_name[] = INCFS_PENDING_READS_FILENAME;
+static struct mem_range pending_reads_file_name_range = {
+ .data = (u8 *)pending_reads_file_name,
+ .len = ARRAY_SIZE(pending_reads_file_name) - 1
+};
+
+static const char log_file_name[] = INCFS_LOG_FILENAME;
+static struct mem_range log_file_name_range = {
+ .data = (u8 *)log_file_name,
+ .len = ARRAY_SIZE(log_file_name) - 1
+};
+
+static const match_table_t option_tokens = {
+ { Opt_read_timeout, "read_timeout_ms=%u" },
+ { Opt_readahead_pages, "readahead=%u" },
+ { Opt_no_backing_file_cache, "no_bf_cache=%u" },
+ { Opt_no_backing_file_readahead, "no_bf_readahead=%u" },
+ { Opt_rlog_pages, "rlog_pages=%u" },
+ { Opt_rlog_wakeup_cnt, "rlog_wakeup_cnt=%u" },
+ { Opt_err, NULL }
+};
+
+static int parse_options(struct mount_options *opts, char *str)
+{
+ substring_t args[MAX_OPT_ARGS];
+ int value;
+ char *position;
+
+ if (opts == NULL)
+ return -EFAULT;
+
+ opts->read_timeout_ms = 1000; /* Default: 1s */
+ opts->readahead_pages = 10;
+ opts->read_log_pages = 2;
+ opts->read_log_wakeup_count = 10;
+ opts->no_backing_file_cache = false;
+ opts->no_backing_file_readahead = false;
+ if (str == NULL || *str == 0)
+ return 0;
+
+ while ((position = strsep(&str, ",")) != NULL) {
+ int token;
+
+ if (!*position)
+ continue;
+
+ token = match_token(position, option_tokens, args);
+
+ switch (token) {
+ case Opt_read_timeout:
+ if (match_int(&args[0], &value))
+ return -EINVAL;
+ opts->read_timeout_ms = value;
+ break;
+ case Opt_readahead_pages:
+ if (match_int(&args[0], &value))
+ return -EINVAL;
+ opts->readahead_pages = value;
+ break;
+ case Opt_no_backing_file_cache:
+ if (match_int(&args[0], &value))
+ return -EINVAL;
+ opts->no_backing_file_cache = (value != 0);
+ break;
+ case Opt_no_backing_file_readahead:
+ if (match_int(&args[0], &value))
+ return -EINVAL;
+ opts->no_backing_file_readahead = (value != 0);
+ break;
+ case Opt_rlog_pages:
+ if (match_int(&args[0], &value))
+ return -EINVAL;
+ opts->read_log_pages = value;
+ break;
+ case Opt_rlog_wakeup_cnt:
+ if (match_int(&args[0], &value))
+ return -EINVAL;
+ opts->read_log_wakeup_count = value;
+ break;
+ default:
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+static struct super_block *file_superblock(struct file *f)
+{
+ struct inode *inode = file_inode(f);
+
+ return inode->i_sb;
+}
+
+static struct mount_info *get_mount_info(struct super_block *sb)
+{
+ struct mount_info *result = sb->s_fs_info;
+
+ WARN_ON(!result);
+ return result;
+}
+
+/* Read file size from the attribute. Quicker than reading the header */
+static u64 read_size_attr(struct dentry *backing_dentry)
+{
+ __le64 attr_value;
+ ssize_t bytes_read;
+
+ bytes_read = vfs_getxattr(backing_dentry, INCFS_XATTR_SIZE_NAME,
+ (char *)&attr_value, sizeof(attr_value));
+
+ if (bytes_read != sizeof(attr_value))
+ return 0;
+
+ return le64_to_cpu(attr_value);
+}
+
+static int inode_test(struct inode *inode, void *opaque)
+{
+ struct inode_search *search = opaque;
+ struct inode_info *node = get_incfs_node(inode);
+
+ if (!node)
+ return 0;
+
+ if (search->backing_dentry) {
+ struct inode *backing_inode = d_inode(search->backing_dentry);
+
+ return (node->n_backing_inode == backing_inode) &&
+ inode->i_ino == search->ino;
+ } else
+ return inode->i_ino == search->ino;
+}
+
+static int inode_set(struct inode *inode, void *opaque)
+{
+ struct inode_search *search = opaque;
+ struct inode_info *node = get_incfs_node(inode);
+
+ if (search->backing_dentry) {
+ /* It's a regular inode that has corresponding backing inode */
+ struct dentry *backing_dentry = search->backing_dentry;
+ struct inode *backing_inode = d_inode(backing_dentry);
+
+ fsstack_copy_attr_all(inode, backing_inode);
+ if (S_ISREG(inode->i_mode)) {
+ u64 size = search->size;
+
+ inode->i_size = size;
+ inode->i_blocks = get_blocks_count_for_size(size);
+ inode->i_mapping->a_ops = &incfs_address_space_ops;
+ inode->i_op = &incfs_file_inode_ops;
+ inode->i_fop = &incfs_file_ops;
+ inode->i_mode &= ~0222;
+ } else if (S_ISDIR(inode->i_mode)) {
+ inode->i_size = 0;
+ inode->i_blocks = 1;
+ inode->i_mapping->a_ops = &incfs_address_space_ops;
+ inode->i_op = &incfs_dir_inode_ops;
+ inode->i_fop = &incfs_dir_fops;
+ } else {
+ pr_warn_once("incfs: Unexpected inode type\n");
+ return -EBADF;
+ }
+
+ ihold(backing_inode);
+ node->n_backing_inode = backing_inode;
+ node->n_mount_info = get_mount_info(inode->i_sb);
+ inode->i_ctime = backing_inode->i_ctime;
+ inode->i_mtime = backing_inode->i_mtime;
+ inode->i_atime = backing_inode->i_atime;
+ inode->i_ino = backing_inode->i_ino;
+ if (backing_inode->i_ino < INCFS_START_INO_RANGE) {
+ pr_warn("incfs: ino conflict with backing FS %ld\n",
+ backing_inode->i_ino);
+ }
+
+ return 0;
+ } else if (search->ino == INCFS_PENDING_READS_INODE) {
+ /* It's an inode for .pending_reads pseudo file. */
+
+ inode->i_ctime = (struct timespec64){};
+ inode->i_mtime = inode->i_ctime;
+ inode->i_atime = inode->i_ctime;
+ inode->i_size = 0;
+ inode->i_ino = INCFS_PENDING_READS_INODE;
+ inode->i_private = NULL;
+
+ inode_init_owner(inode, NULL, S_IFREG | READ_WRITE_FILE_MODE);
+
+ inode->i_op = &incfs_file_inode_ops;
+ inode->i_fop = &incfs_pending_read_file_ops;
+
+ } else if (search->ino == INCFS_LOG_INODE) {
+ /* It's an inode for .log pseudo file. */
+
+ inode->i_ctime = (struct timespec64){};
+ inode->i_mtime = inode->i_ctime;
+ inode->i_atime = inode->i_ctime;
+ inode->i_size = 0;
+ inode->i_ino = INCFS_LOG_INODE;
+ inode->i_private = NULL;
+
+ inode_init_owner(inode, NULL, S_IFREG | READ_WRITE_FILE_MODE);
+
+ inode->i_op = &incfs_file_inode_ops;
+ inode->i_fop = &incfs_log_file_ops;
+
+ } else {
+ /* Unknown inode requested. */
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static struct inode *fetch_regular_inode(struct super_block *sb,
+ struct dentry *backing_dentry)
+{
+ struct inode *backing_inode = d_inode(backing_dentry);
+ struct inode_search search = {
+ .ino = backing_inode->i_ino,
+ .backing_dentry = backing_dentry,
+ .size = read_size_attr(backing_dentry),
+ };
+ struct inode *inode = iget5_locked(sb, search.ino, inode_test,
+ inode_set, &search);
+
+ if (!inode)
+ return ERR_PTR(-ENOMEM);
+
+ if (inode->i_state & I_NEW)
+ unlock_new_inode(inode);
+
+ return inode;
+}
+
+static ssize_t pending_reads_read(struct file *f, char __user *buf, size_t len,
+ loff_t *ppos)
+{
+ struct pending_reads_state *pr_state = f->private_data;
+ struct mount_info *mi = get_mount_info(file_superblock(f));
+ struct incfs_pending_read_info *reads_buf = NULL;
+ size_t reads_to_collect = len / sizeof(*reads_buf);
+ int last_known_read_sn = READ_ONCE(pr_state->last_pending_read_sn);
+ int new_max_sn = last_known_read_sn;
+ int reads_collected = 0;
+ ssize_t result = 0;
+ int i = 0;
+
+ if (!incfs_fresh_pending_reads_exist(mi, last_known_read_sn))
+ return 0;
+
+ reads_buf = (struct incfs_pending_read_info *)get_zeroed_page(GFP_NOFS);
+ if (!reads_buf)
+ return -ENOMEM;
+
+ reads_to_collect =
+ min_t(size_t, PAGE_SIZE / sizeof(*reads_buf), reads_to_collect);
+
+ reads_collected = incfs_collect_pending_reads(
+ mi, last_known_read_sn, reads_buf, reads_to_collect);
+ if (reads_collected < 0) {
+ result = reads_collected;
+ goto out;
+ }
+
+ for (i = 0; i < reads_collected; i++)
+ if (reads_buf[i].serial_number > new_max_sn)
+ new_max_sn = reads_buf[i].serial_number;
+
+ /*
+ * Just to make sure that we don't accidentally copy more data
+ * to reads buffer than userspace can handle.
+ */
+ reads_collected = min_t(size_t, reads_collected, reads_to_collect);
+ result = reads_collected * sizeof(*reads_buf);
+
+ /* Copy reads info to the userspace buffer */
+ if (copy_to_user(buf, reads_buf, result)) {
+ result = -EFAULT;
+ goto out;
+ }
+
+ WRITE_ONCE(pr_state->last_pending_read_sn, new_max_sn);
+ *ppos = 0;
+out:
+ if (reads_buf)
+ free_page((unsigned long)reads_buf);
+ return result;
+}
+
+
+static __poll_t pending_reads_poll(struct file *file, poll_table *wait)
+{
+ struct pending_reads_state *state = file->private_data;
+ struct mount_info *mi = get_mount_info(file_superblock(file));
+ __poll_t ret = 0;
+
+ poll_wait(file, &mi->mi_pending_reads_notif_wq, wait);
+ if (incfs_fresh_pending_reads_exist(mi,
+ state->last_pending_read_sn))
+ ret = EPOLLIN | EPOLLRDNORM;
+
+ return ret;
+}
+
+static int pending_reads_open(struct inode *inode, struct file *file)
+{
+ struct pending_reads_state *state = NULL;
+
+ state = kzalloc(sizeof(*state), GFP_NOFS);
+ if (!state)
+ return -ENOMEM;
+
+ file->private_data = state;
+ return 0;
+}
+
+static int pending_reads_release(struct inode *inode, struct file *file)
+{
+ kfree(file->private_data);
+ return 0;
+}
+
+static struct inode *fetch_pending_reads_inode(struct super_block *sb)
+{
+ struct inode_search search = {
+ .ino = INCFS_PENDING_READS_INODE
+ };
+ struct inode *inode = iget5_locked(sb, search.ino, inode_test,
+ inode_set, &search);
+
+ if (!inode)
+ return ERR_PTR(-ENOMEM);
+
+ if (inode->i_state & I_NEW)
+ unlock_new_inode(inode);
+
+ return inode;
+}
+
+static int log_open(struct inode *inode, struct file *file)
+{
+ struct log_file_state *log_state = NULL;
+ struct mount_info *mi = get_mount_info(file_superblock(file));
+
+ log_state = kzalloc(sizeof(*log_state), GFP_NOFS);
+ if (!log_state)
+ return -ENOMEM;
+
+ log_state->state = incfs_get_log_state(mi);
+ file->private_data = log_state;
+ return 0;
+}
+
+static int log_release(struct inode *inode, struct file *file)
+{
+ kfree(file->private_data);
+ return 0;
+}
+
+static ssize_t log_read(struct file *f, char __user *buf, size_t len,
+ loff_t *ppos)
+{
+ struct log_file_state *log_state = f->private_data;
+ struct mount_info *mi = get_mount_info(file_superblock(f));
+ int total_reads_collected = 0;
+ int rl_size;
+ ssize_t result = 0;
+ struct incfs_pending_read_info *reads_buf;
+ ssize_t reads_to_collect = len / sizeof(*reads_buf);
+ ssize_t reads_per_page = PAGE_SIZE / sizeof(*reads_buf);
+
+ rl_size = READ_ONCE(mi->mi_log.rl_size);
+ if (rl_size == 0)
+ return 0;
+
+ reads_buf = (struct incfs_pending_read_info *)__get_free_page(GFP_NOFS);
+ if (!reads_buf)
+ return -ENOMEM;
+
+ reads_to_collect = min_t(ssize_t, rl_size, reads_to_collect);
+ while (reads_to_collect > 0) {
+ struct read_log_state next_state;
+ int reads_collected;
+
+ memcpy(&next_state, &log_state->state, sizeof(next_state));
+ reads_collected = incfs_collect_logged_reads(
+ mi, &next_state, reads_buf,
+ min_t(ssize_t, reads_to_collect, reads_per_page));
+ if (reads_collected <= 0) {
+ result = total_reads_collected ?
+ total_reads_collected *
+ sizeof(*reads_buf) :
+ reads_collected;
+ goto out;
+ }
+ if (copy_to_user(buf, reads_buf,
+ reads_collected * sizeof(*reads_buf))) {
+ result = total_reads_collected ?
+ total_reads_collected *
+ sizeof(*reads_buf) :
+ -EFAULT;
+ goto out;
+ }
+
+ memcpy(&log_state->state, &next_state, sizeof(next_state));
+ total_reads_collected += reads_collected;
+ buf += reads_collected * sizeof(*reads_buf);
+ reads_to_collect -= reads_collected;
+ }
+
+ result = total_reads_collected * sizeof(*reads_buf);
+ *ppos = 0;
+out:
+ if (reads_buf)
+ free_page((unsigned long)reads_buf);
+ return result;
+}
+
+static __poll_t log_poll(struct file *file, poll_table *wait)
+{
+ struct log_file_state *log_state = file->private_data;
+ struct mount_info *mi = get_mount_info(file_superblock(file));
+ int count;
+ __poll_t ret = 0;
+
+ poll_wait(file, &mi->mi_log.ml_notif_wq, wait);
+ count = incfs_get_uncollected_logs_count(mi, &log_state->state);
+ if (count >= mi->mi_options.read_log_wakeup_count)
+ ret = EPOLLIN | EPOLLRDNORM;
+
+ return ret;
+}
+
+static struct inode *fetch_log_inode(struct super_block *sb)
+{
+ struct inode_search search = {
+ .ino = INCFS_LOG_INODE
+ };
+ struct inode *inode = iget5_locked(sb, search.ino, inode_test,
+ inode_set, &search);
+
+ if (!inode)
+ return ERR_PTR(-ENOMEM);
+
+ if (inode->i_state & I_NEW)
+ unlock_new_inode(inode);
+
+ return inode;
+}
+
+static int iterate_incfs_dir(struct file *file, struct dir_context *ctx)
+{
+ struct dir_file *dir = get_incfs_dir_file(file);
+ int error = 0;
+ struct mount_info *mi = get_mount_info(file_superblock(file));
+ bool root;
+
+ if (!dir) {
+ error = -EBADF;
+ goto out;
+ }
+
+ root = dir->backing_dir->f_inode
+ == d_inode(mi->mi_backing_dir_path.dentry);
+
+ if (root && ctx->pos == 0) {
+ if (!dir_emit(ctx, pending_reads_file_name,
+ ARRAY_SIZE(pending_reads_file_name) - 1,
+ INCFS_PENDING_READS_INODE, DT_REG)) {
+ error = -EINVAL;
+ goto out;
+ }
+ ctx->pos++;
+ }
+
+ if (root && ctx->pos == 1) {
+ if (!dir_emit(ctx, log_file_name,
+ ARRAY_SIZE(log_file_name) - 1,
+ INCFS_LOG_INODE, DT_REG)) {
+ error = -EINVAL;
+ goto out;
+ }
+ ctx->pos++;
+ }
+
+ ctx->pos -= 2;
+ error = iterate_dir(dir->backing_dir, ctx);
+ ctx->pos += 2;
+ file->f_pos = dir->backing_dir->f_pos;
+out:
+ if (error)
+ pr_warn("incfs: %s %s %d\n", __func__,
+ file->f_path.dentry->d_name.name, error);
+ return error;
+}
+
+static int incfs_init_dentry(struct dentry *dentry, struct path *path)
+{
+ struct dentry_info *d_info = NULL;
+
+ if (!dentry || !path)
+ return -EFAULT;
+
+ d_info = kzalloc(sizeof(*d_info), GFP_NOFS);
+ if (!d_info)
+ return -ENOMEM;
+
+ d_info->backing_path = *path;
+ path_get(path);
+
+ dentry->d_fsdata = d_info;
+ return 0;
+}
+
+static struct dentry *incfs_lookup_dentry(struct dentry *parent,
+ const char *name)
+{
+ struct inode *inode;
+ struct dentry *result = NULL;
+
+ if (!parent)
+ return ERR_PTR(-EFAULT);
+
+ inode = d_inode(parent);
+ inode_lock_nested(inode, I_MUTEX_PARENT);
+ result = lookup_one_len(name, parent, strlen(name));
+ inode_unlock(inode);
+
+ if (IS_ERR(result))
+ pr_warn("%s err:%ld\n", __func__, PTR_ERR(result));
+
+ return result;
+}
+
+static struct dentry *open_or_create_index_dir(struct dentry *backing_dir)
+{
+ static const char name[] = ".index";
+ struct dentry *index_dentry;
+ struct inode *backing_inode = d_inode(backing_dir);
+ int err = 0;
+
+ index_dentry = incfs_lookup_dentry(backing_dir, name);
+ if (!index_dentry) {
+ return ERR_PTR(-EINVAL);
+ } else if (IS_ERR(index_dentry)) {
+ return index_dentry;
+ } else if (d_really_is_positive(index_dentry)) {
+ /* Index already exists. */
+ return index_dentry;
+ }
+
+ /* Index needs to be created. */
+ inode_lock_nested(backing_inode, I_MUTEX_PARENT);
+ err = vfs_mkdir(backing_inode, index_dentry, 0777);
+ inode_unlock(backing_inode);
+
+ if (err)
+ return ERR_PTR(err);
+
+ if (!d_really_is_positive(index_dentry)) {
+ dput(index_dentry);
+ return ERR_PTR(-EINVAL);
+ }
+
+ return index_dentry;
+}
+
+static int read_single_page(struct file *f, struct page *page)
+{
+ loff_t offset = 0;
+ loff_t size = 0;
+ ssize_t bytes_to_read = 0;
+ ssize_t read_result = 0;
+ struct data_file *df = get_incfs_data_file(f);
+ int result = 0;
+ void *page_start = kmap(page);
+ int block_index;
+ int timeout_ms;
+
+ if (!df)
+ return -EBADF;
+
+ offset = page_offset(page);
+ block_index = offset / INCFS_DATA_FILE_BLOCK_SIZE;
+ size = df->df_size;
+ timeout_ms = df->df_mount_info->mi_options.read_timeout_ms;
+
+ if (offset < size) {
+ struct mem_range tmp = {
+ .len = 2 * INCFS_DATA_FILE_BLOCK_SIZE
+ };
+
+ tmp.data = (u8 *)__get_free_pages(GFP_NOFS, get_order(tmp.len));
+ bytes_to_read = min_t(loff_t, size - offset, PAGE_SIZE);
+ read_result = incfs_read_data_file_block(
+ range(page_start, bytes_to_read), f, block_index,
+ timeout_ms, tmp);
+
+ free_pages((unsigned long)tmp.data, get_order(tmp.len));
+ } else {
+ bytes_to_read = 0;
+ read_result = 0;
+ }
+
+ if (read_result < 0)
+ result = read_result;
+ else if (read_result < PAGE_SIZE)
+ zero_user(page, read_result, PAGE_SIZE - read_result);
+
+ if (result == 0)
+ SetPageUptodate(page);
+ else
+ SetPageError(page);
+
+ flush_dcache_page(page);
+ kunmap(page);
+ unlock_page(page);
+ return result;
+}
+
+static char *file_id_to_str(incfs_uuid_t id)
+{
+ char *result = kmalloc(1 + sizeof(id.bytes) * 2, GFP_NOFS);
+ char *end;
+
+ if (!result)
+ return NULL;
+
+ end = bin2hex(result, id.bytes, sizeof(id.bytes));
+ *end = 0;
+ return result;
+}
+
+static struct mem_range incfs_copy_signature_info_from_user(u8 __user *original,
+ u64 size)
+{
+ u8 *result;
+
+ if (!original)
+ return range(NULL, 0);
+
+ if (size > INCFS_MAX_SIGNATURE_SIZE)
+ return range(ERR_PTR(-EFAULT), 0);
+
+ result = kzalloc(size, GFP_NOFS | __GFP_COMP);
+ if (!result)
+ return range(ERR_PTR(-ENOMEM), 0);
+
+ if (copy_from_user(result, original, size)) {
+ kfree(result);
+ return range(ERR_PTR(-EFAULT), 0);
+ }
+
+ return range(result, size);
+}
+
+static int init_new_file(struct mount_info *mi, struct dentry *dentry,
+ incfs_uuid_t *uuid, u64 size, struct mem_range attr,
+ u8 __user *user_signature_info, u64 signature_size)
+{
+ struct path path = {};
+ struct file *new_file;
+ int error = 0;
+ struct backing_file_context *bfc = NULL;
+ u32 block_count;
+ struct mem_range raw_signature = { NULL };
+ struct mtree *hash_tree = NULL;
+
+ if (!mi || !dentry || !uuid)
+ return -EFAULT;
+
+ /* Resize newly created file to its true size. */
+ path = (struct path) {
+ .mnt = mi->mi_backing_dir_path.mnt,
+ .dentry = dentry
+ };
+ new_file = dentry_open(&path, O_RDWR | O_NOATIME | O_LARGEFILE,
+ current_cred());
+
+ if (IS_ERR(new_file)) {
+ error = PTR_ERR(new_file);
+ goto out;
+ }
+
+ bfc = incfs_alloc_bfc(mi, new_file);
+ fput(new_file);
+ if (IS_ERR(bfc)) {
+ error = PTR_ERR(bfc);
+ bfc = NULL;
+ goto out;
+ }
+
+ mutex_lock(&bfc->bc_mutex);
+ error = incfs_write_fh_to_backing_file(bfc, uuid, size);
+ if (error)
+ goto out;
+
+ if (attr.data && attr.len) {
+ error = incfs_write_file_attr_to_backing_file(bfc,
+ attr, NULL);
+ if (error)
+ goto out;
+ }
+
+ block_count = (u32)get_blocks_count_for_size(size);
+
+ if (user_signature_info) {
+ raw_signature = incfs_copy_signature_info_from_user(
+ user_signature_info, signature_size);
+
+ if (IS_ERR(raw_signature.data)) {
+ error = PTR_ERR(raw_signature.data);
+ raw_signature.data = NULL;
+ goto out;
+ }
+
+ hash_tree = incfs_alloc_mtree(raw_signature, block_count);
+ if (IS_ERR(hash_tree)) {
+ error = PTR_ERR(hash_tree);
+ hash_tree = NULL;
+ goto out;
+ }
+
+ error = incfs_write_signature_to_backing_file(
+ bfc, raw_signature, hash_tree->hash_tree_area_size);
+ if (error)
+ goto out;
+
+ block_count += get_blocks_count_for_size(
+ hash_tree->hash_tree_area_size);
+ }
+
+ if (block_count)
+ error = incfs_write_blockmap_to_backing_file(bfc, block_count);
+
+ if (error)
+ goto out;
+out:
+ if (bfc) {
+ mutex_unlock(&bfc->bc_mutex);
+ incfs_free_bfc(bfc);
+ }
+ incfs_free_mtree(hash_tree);
+ kfree(raw_signature.data);
+
+ if (error)
+ pr_debug("incfs: %s error: %d\n", __func__, error);
+ return error;
+}
+
+static int incfs_link(struct dentry *what, struct dentry *where)
+{
+ struct dentry *parent_dentry = dget_parent(where);
+ struct inode *pinode = d_inode(parent_dentry);
+ int error = 0;
+
+ inode_lock_nested(pinode, I_MUTEX_PARENT);
+ error = vfs_link(what, pinode, where, NULL);
+ inode_unlock(pinode);
+
+ dput(parent_dentry);
+ return error;
+}
+
+static int incfs_unlink(struct dentry *dentry)
+{
+ struct dentry *parent_dentry = dget_parent(dentry);
+ struct inode *pinode = d_inode(parent_dentry);
+ int error = 0;
+
+ inode_lock_nested(pinode, I_MUTEX_PARENT);
+ error = vfs_unlink(pinode, dentry, NULL);
+ inode_unlock(pinode);
+
+ dput(parent_dentry);
+ return error;
+}
+
+static int incfs_rmdir(struct dentry *dentry)
+{
+ struct dentry *parent_dentry = dget_parent(dentry);
+ struct inode *pinode = d_inode(parent_dentry);
+ int error = 0;
+
+ inode_lock_nested(pinode, I_MUTEX_PARENT);
+ error = vfs_rmdir(pinode, dentry);
+ inode_unlock(pinode);
+
+ dput(parent_dentry);
+ return error;
+}
+
+static int dir_relative_path_resolve(
+ struct mount_info *mi,
+ const char __user *relative_path,
+ struct path *result_path)
+{
+ struct path *base_path = &mi->mi_backing_dir_path;
+ int dir_fd = get_unused_fd_flags(0);
+ struct file *dir_f = NULL;
+ int error = 0;
+
+ if (dir_fd < 0)
+ return dir_fd;
+
+ dir_f = dentry_open(base_path, O_RDONLY | O_NOATIME, current_cred());
+
+ if (IS_ERR(dir_f)) {
+ error = PTR_ERR(dir_f);
+ goto out;
+ }
+ fd_install(dir_fd, dir_f);
+
+ if (!relative_path) {
+ /* No relative path given, just return the base dir. */
+ *result_path = *base_path;
+ path_get(result_path);
+ goto out;
+ }
+
+ error = user_path_at_empty(dir_fd, relative_path,
+ LOOKUP_FOLLOW | LOOKUP_DIRECTORY, result_path, NULL);
+
+out:
+ ksys_close(dir_fd);
+ if (error)
+ pr_debug("incfs: %s %d\n", __func__, error);
+ return error;
+}
+
+static int validate_name(char *file_name)
+{
+ struct mem_range name = range(file_name, strlen(file_name));
+ int i = 0;
+
+ if (name.len > INCFS_MAX_NAME_LEN)
+ return -ENAMETOOLONG;
+
+ if (incfs_equal_ranges(pending_reads_file_name_range, name))
+ return -EINVAL;
+
+ for (i = 0; i < name.len; i++)
+ if (name.data[i] == '/')
+ return -EINVAL;
+
+ return 0;
+}
+
+static int chmod(struct dentry *dentry, umode_t mode)
+{
+ struct inode *inode = dentry->d_inode;
+ struct inode *delegated_inode = NULL;
+ struct iattr newattrs;
+ int error;
+
+retry_deleg:
+ inode_lock(inode);
+ newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO);
+ newattrs.ia_valid = ATTR_MODE | ATTR_CTIME;
+ error = notify_change(dentry, &newattrs, &delegated_inode);
+ inode_unlock(inode);
+ if (delegated_inode) {
+ error = break_deleg_wait(&delegated_inode);
+ if (!error)
+ goto retry_deleg;
+ }
+ return error;
+}
+
+static long ioctl_create_file(struct mount_info *mi,
+ struct incfs_new_file_args __user *usr_args)
+{
+ struct incfs_new_file_args args;
+ char *file_id_str = NULL;
+ struct dentry *index_file_dentry = NULL;
+ struct dentry *named_file_dentry = NULL;
+ struct path parent_dir_path = {};
+ struct inode *index_dir_inode = NULL;
+ __le64 size_attr_value = 0;
+ char *file_name = NULL;
+ char *attr_value = NULL;
+ int error = 0;
+ bool locked = false;
+
+ if (!mi || !mi->mi_index_dir) {
+ error = -EFAULT;
+ goto out;
+ }
+
+ if (copy_from_user(&args, usr_args, sizeof(args)) > 0) {
+ error = -EFAULT;
+ goto out;
+ }
+
+ file_name = strndup_user(u64_to_user_ptr(args.file_name), PATH_MAX);
+ if (IS_ERR(file_name)) {
+ error = PTR_ERR(file_name);
+ file_name = NULL;
+ goto out;
+ }
+
+ error = validate_name(file_name);
+ if (error)
+ goto out;
+
+ file_id_str = file_id_to_str(args.file_id);
+ if (!file_id_str) {
+ error = -ENOMEM;
+ goto out;
+ }
+
+ error = mutex_lock_interruptible(&mi->mi_dir_struct_mutex);
+ if (error)
+ goto out;
+ locked = true;
+
+ /* Find a directory to put the file into. */
+ error = dir_relative_path_resolve(mi,
+ u64_to_user_ptr(args.directory_path),
+ &parent_dir_path);
+ if (error)
+ goto out;
+
+ if (parent_dir_path.dentry == mi->mi_index_dir) {
+ /* Can't create a file directly inside .index */
+ error = -EBUSY;
+ goto out;
+ }
+
+ /* Look up a dentry in the parent dir. It should be negative. */
+ named_file_dentry = incfs_lookup_dentry(parent_dir_path.dentry,
+ file_name);
+ if (!named_file_dentry) {
+ error = -EFAULT;
+ goto out;
+ }
+ if (IS_ERR(named_file_dentry)) {
+ error = PTR_ERR(named_file_dentry);
+ named_file_dentry = NULL;
+ goto out;
+ }
+ if (d_really_is_positive(named_file_dentry)) {
+ /* File with this path already exists. */
+ error = -EEXIST;
+ goto out;
+ }
+ /* Look up a dentry in the .index dir. It should be negative. */
+ index_file_dentry = incfs_lookup_dentry(mi->mi_index_dir, file_id_str);
+ if (!index_file_dentry) {
+ error = -EFAULT;
+ goto out;
+ }
+ if (IS_ERR(index_file_dentry)) {
+ error = PTR_ERR(index_file_dentry);
+ index_file_dentry = NULL;
+ goto out;
+ }
+ if (d_really_is_positive(index_file_dentry)) {
+ /* File with this ID already exists in index. */
+ error = -EEXIST;
+ goto out;
+ }
+
+ /* Creating a file in the .index dir. */
+ index_dir_inode = d_inode(mi->mi_index_dir);
+ inode_lock_nested(index_dir_inode, I_MUTEX_PARENT);
+ error = vfs_create(index_dir_inode, index_file_dentry, args.mode | 0222,
+ true);
+ inode_unlock(index_dir_inode);
+
+ if (error)
+ goto out;
+ if (!d_really_is_positive(index_file_dentry)) {
+ error = -EINVAL;
+ goto out;
+ }
+
+ error = chmod(index_file_dentry, args.mode | 0222);
+ if (error) {
+ pr_debug("incfs: chmod err: %d\n", error);
+ goto delete_index_file;
+ }
+
+ /* Save the file's ID as an xattr for easy fetching in future. */
+ error = vfs_setxattr(index_file_dentry, INCFS_XATTR_ID_NAME,
+ file_id_str, strlen(file_id_str), XATTR_CREATE);
+ if (error) {
+ pr_debug("incfs: vfs_setxattr err:%d\n", error);
+ goto delete_index_file;
+ }
+
+ /* Save the file's size as an xattr for easy fetching in future. */
+ size_attr_value = cpu_to_le64(args.size);
+ error = vfs_setxattr(index_file_dentry, INCFS_XATTR_SIZE_NAME,
+ (char *)&size_attr_value, sizeof(size_attr_value),
+ XATTR_CREATE);
+ if (error) {
+ pr_debug("incfs: vfs_setxattr err:%d\n", error);
+ goto delete_index_file;
+ }
+
+ /* Save the file's attribute as an xattr */
+ if (args.file_attr_len && args.file_attr) {
+ if (args.file_attr_len > INCFS_MAX_FILE_ATTR_SIZE) {
+ error = -E2BIG;
+ goto delete_index_file;
+ }
+
+ attr_value = kmalloc(args.file_attr_len, GFP_NOFS);
+ if (!attr_value) {
+ error = -ENOMEM;
+ goto delete_index_file;
+ }
+
+ if (copy_from_user(attr_value,
+ u64_to_user_ptr(args.file_attr),
+ args.file_attr_len) > 0) {
+ error = -EFAULT;
+ goto delete_index_file;
+ }
+
+ error = vfs_setxattr(index_file_dentry,
+ INCFS_XATTR_METADATA_NAME,
+ attr_value, args.file_attr_len,
+ XATTR_CREATE);
+
+ if (error)
+ goto delete_index_file;
+ }
+
+ /* Initializing a newly created file. */
+ error = init_new_file(mi, index_file_dentry, &args.file_id, args.size,
+ range(attr_value, args.file_attr_len),
+ (u8 __user *)args.signature_info,
+ args.signature_size);
+ if (error)
+ goto delete_index_file;
+
+ /* Linking a file with it's real name from the requested dir. */
+ error = incfs_link(index_file_dentry, named_file_dentry);
+
+ if (!error)
+ goto out;
+
+delete_index_file:
+ incfs_unlink(index_file_dentry);
+
+out:
+ if (error)
+ pr_debug("incfs: %s err:%d\n", __func__, error);
+
+ kfree(file_id_str);
+ kfree(file_name);
+ kfree(attr_value);
+ dput(named_file_dentry);
+ dput(index_file_dentry);
+ path_put(&parent_dir_path);
+ if (locked)
+ mutex_unlock(&mi->mi_dir_struct_mutex);
+ return error;
+}
+
+static long ioctl_fill_blocks(struct file *f, void __user *arg)
+{
+ struct incfs_fill_blocks __user *usr_fill_blocks = arg;
+ struct incfs_fill_blocks fill_blocks;
+ struct incfs_fill_block __user *usr_fill_block_array;
+ struct data_file *df = get_incfs_data_file(f);
+ const ssize_t data_buf_size = 2 * INCFS_DATA_FILE_BLOCK_SIZE;
+ u8 *data_buf = NULL;
+ ssize_t error = 0;
+ int i = 0;
+
+ if (!df)
+ return -EBADF;
+
+ if ((uintptr_t)f->private_data != CAN_FILL)
+ return -EPERM;
+
+ if (copy_from_user(&fill_blocks, usr_fill_blocks, sizeof(fill_blocks)))
+ return -EFAULT;
+
+ usr_fill_block_array = u64_to_user_ptr(fill_blocks.fill_blocks);
+ data_buf = (u8 *)__get_free_pages(GFP_NOFS | __GFP_COMP,
+ get_order(data_buf_size));
+ if (!data_buf)
+ return -ENOMEM;
+
+ for (i = 0; i < fill_blocks.count; i++) {
+ struct incfs_fill_block fill_block = {};
+
+ if (copy_from_user(&fill_block, &usr_fill_block_array[i],
+ sizeof(fill_block)) > 0) {
+ error = -EFAULT;
+ break;
+ }
+
+ if (fill_block.data_len > data_buf_size) {
+ error = -E2BIG;
+ break;
+ }
+
+ if (copy_from_user(data_buf, u64_to_user_ptr(fill_block.data),
+ fill_block.data_len) > 0) {
+ error = -EFAULT;
+ break;
+ }
+ fill_block.data = 0; /* To make sure nobody uses it. */
+ if (fill_block.flags & INCFS_BLOCK_FLAGS_HASH) {
+ error = incfs_process_new_hash_block(df, &fill_block,
+ data_buf);
+ } else {
+ error = incfs_process_new_data_block(df, &fill_block,
+ data_buf);
+ }
+ if (error)
+ break;
+ }
+
+ if (data_buf)
+ free_pages((unsigned long)data_buf, get_order(data_buf_size));
+
+ /*
+ * Only report the error if no records were processed, otherwise
+ * just return how many were processed successfully.
+ */
+ if (i == 0)
+ return error;
+
+ return i;
+}
+
+static long ioctl_permit_fill(struct file *f, void __user *arg)
+{
+ struct incfs_permit_fill __user *usr_permit_fill = arg;
+ struct incfs_permit_fill permit_fill;
+ long error = 0;
+ struct file *file = NULL;
+
+ if (f->f_op != &incfs_pending_read_file_ops)
+ return -EPERM;
+
+ if (copy_from_user(&permit_fill, usr_permit_fill, sizeof(permit_fill)))
+ return -EFAULT;
+
+ file = fget(permit_fill.file_descriptor);
+ if (IS_ERR(file))
+ return PTR_ERR(file);
+
+ if (file->f_op != &incfs_file_ops) {
+ error = -EPERM;
+ goto out;
+ }
+
+ if (file->f_inode->i_sb != f->f_inode->i_sb) {
+ error = -EPERM;
+ goto out;
+ }
+
+ switch ((uintptr_t)file->private_data) {
+ case CANT_FILL:
+ file->private_data = (void *)CAN_FILL;
+ break;
+
+ case CAN_FILL:
+ pr_debug("CAN_FILL already set");
+ break;
+
+ default:
+ pr_warn("Invalid file private data");
+ error = -EFAULT;
+ goto out;
+ }
+
+out:
+ fput(file);
+ return error;
+}
+
+static long ioctl_read_file_signature(struct file *f, void __user *arg)
+{
+ struct incfs_get_file_sig_args __user *args_usr_ptr = arg;
+ struct incfs_get_file_sig_args args = {};
+ u8 *sig_buffer = NULL;
+ size_t sig_buf_size = 0;
+ int error = 0;
+ int read_result = 0;
+ struct data_file *df = get_incfs_data_file(f);
+
+ if (!df)
+ return -EINVAL;
+
+ if (copy_from_user(&args, args_usr_ptr, sizeof(args)) > 0)
+ return -EINVAL;
+
+ sig_buf_size = args.file_signature_buf_size;
+ if (sig_buf_size > INCFS_MAX_SIGNATURE_SIZE)
+ return -E2BIG;
+
+ sig_buffer = kzalloc(sig_buf_size, GFP_NOFS | __GFP_COMP);
+ if (!sig_buffer)
+ return -ENOMEM;
+
+ read_result = incfs_read_file_signature(df,
+ range(sig_buffer, sig_buf_size));
+
+ if (read_result < 0) {
+ error = read_result;
+ goto out;
+ }
+
+ if (copy_to_user(u64_to_user_ptr(args.file_signature), sig_buffer,
+ read_result)) {
+ error = -EFAULT;
+ goto out;
+ }
+
+ args.file_signature_len_out = read_result;
+ if (copy_to_user(args_usr_ptr, &args, sizeof(args)))
+ error = -EFAULT;
+
+out:
+ kfree(sig_buffer);
+
+ return error;
+}
+
+static long ioctl_get_filled_blocks(struct file *f, void __user *arg)
+{
+ struct incfs_get_filled_blocks_args __user *args_usr_ptr = arg;
+ struct incfs_get_filled_blocks_args args = {};
+ struct data_file *df = get_incfs_data_file(f);
+ int error;
+
+ if (!df)
+ return -EINVAL;
+
+ if ((uintptr_t)f->private_data != CAN_FILL)
+ return -EPERM;
+
+ if (copy_from_user(&args, args_usr_ptr, sizeof(args)) > 0)
+ return -EINVAL;
+
+ error = incfs_get_filled_blocks(df, &args);
+
+ if (copy_to_user(args_usr_ptr, &args, sizeof(args)))
+ return -EFAULT;
+
+ return error;
+}
+
+static long dispatch_ioctl(struct file *f, unsigned int req, unsigned long arg)
+{
+ struct mount_info *mi = get_mount_info(file_superblock(f));
+
+ switch (req) {
+ case INCFS_IOC_CREATE_FILE:
+ return ioctl_create_file(mi, (void __user *)arg);
+ case INCFS_IOC_FILL_BLOCKS:
+ return ioctl_fill_blocks(f, (void __user *)arg);
+ case INCFS_IOC_PERMIT_FILL:
+ return ioctl_permit_fill(f, (void __user *)arg);
+ case INCFS_IOC_READ_FILE_SIGNATURE:
+ return ioctl_read_file_signature(f, (void __user *)arg);
+ case INCFS_IOC_GET_FILLED_BLOCKS:
+ return ioctl_get_filled_blocks(f, (void __user *)arg);
+ default:
+ return -EINVAL;
+ }
+}
+
+static struct dentry *dir_lookup(struct inode *dir_inode, struct dentry *dentry,
+ unsigned int flags)
+{
+ struct mount_info *mi = get_mount_info(dir_inode->i_sb);
+ struct dentry *dir_dentry = NULL;
+ struct dentry *backing_dentry = NULL;
+ struct path dir_backing_path = {};
+ struct inode_info *dir_info = get_incfs_node(dir_inode);
+ struct mem_range name_range =
+ range((u8 *)dentry->d_name.name, dentry->d_name.len);
+ int err = 0;
+
+ if (d_inode(mi->mi_backing_dir_path.dentry) ==
+ dir_info->n_backing_inode) {
+ /* We do lookup in the FS root. Show pseudo files. */
+
+ if (incfs_equal_ranges(pending_reads_file_name_range,
+ name_range)) {
+ struct inode *inode = fetch_pending_reads_inode(
+ dir_inode->i_sb);
+
+ if (IS_ERR(inode)) {
+ err = PTR_ERR(inode);
+ goto out;
+ }
+
+ d_add(dentry, inode);
+ goto out;
+ }
+
+ if (incfs_equal_ranges(log_file_name_range, name_range)) {
+ struct inode *inode = fetch_log_inode(
+ dir_inode->i_sb);
+
+ if (IS_ERR(inode)) {
+ err = PTR_ERR(inode);
+ goto out;
+ }
+
+ d_add(dentry, inode);
+ goto out;
+ }
+ }
+
+ dir_dentry = dget_parent(dentry);
+ get_incfs_backing_path(dir_dentry, &dir_backing_path);
+ backing_dentry = incfs_lookup_dentry(dir_backing_path.dentry,
+ dentry->d_name.name);
+
+ if (!backing_dentry || IS_ERR(backing_dentry)) {
+ err = IS_ERR(backing_dentry)
+ ? PTR_ERR(backing_dentry)
+ : -EFAULT;
+ backing_dentry = NULL;
+ goto out;
+ } else {
+ struct inode *inode = NULL;
+ struct path backing_path = {
+ .mnt = dir_backing_path.mnt,
+ .dentry = backing_dentry
+ };
+
+ err = incfs_init_dentry(dentry, &backing_path);
+ if (err)
+ goto out;
+
+ if (!d_really_is_positive(backing_dentry)) {
+ /*
+ * No such entry found in the backing dir.
+ * Create a negative entry.
+ */
+ d_add(dentry, NULL);
+ err = 0;
+ goto out;
+ }
+
+ if (d_inode(backing_dentry)->i_sb !=
+ dir_info->n_backing_inode->i_sb) {
+ /*
+ * Somehow after the path lookup we ended up in a
+ * different fs mount. If we keep going it's going
+ * to end badly.
+ */
+ err = -EXDEV;
+ goto out;
+ }
+
+ inode = fetch_regular_inode(dir_inode->i_sb, backing_dentry);
+ if (IS_ERR(inode)) {
+ err = PTR_ERR(inode);
+ goto out;
+ }
+
+ d_add(dentry, inode);
+ }
+
+out:
+ dput(dir_dentry);
+ dput(backing_dentry);
+ path_put(&dir_backing_path);
+ if (err)
+ pr_debug("incfs: %s %s %d\n", __func__,
+ dentry->d_name.name, err);
+ return ERR_PTR(err);
+}
+
+static int dir_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
+{
+ struct mount_info *mi = get_mount_info(dir->i_sb);
+ struct inode_info *dir_node = get_incfs_node(dir);
+ struct dentry *backing_dentry = NULL;
+ struct path backing_path = {};
+ int err = 0;
+
+
+ if (!mi || !dir_node || !dir_node->n_backing_inode)
+ return -EBADF;
+
+ err = mutex_lock_interruptible(&mi->mi_dir_struct_mutex);
+ if (err)
+ return err;
+
+ get_incfs_backing_path(dentry, &backing_path);
+ backing_dentry = backing_path.dentry;
+
+ if (!backing_dentry) {
+ err = -EBADF;
+ goto out;
+ }
+
+ if (backing_dentry->d_parent == mi->mi_index_dir) {
+ /* Can't create a subdir inside .index */
+ err = -EBUSY;
+ goto out;
+ }
+
+ inode_lock_nested(dir_node->n_backing_inode, I_MUTEX_PARENT);
+ err = vfs_mkdir(dir_node->n_backing_inode, backing_dentry, mode | 0222);
+ inode_unlock(dir_node->n_backing_inode);
+ if (!err) {
+ struct inode *inode = NULL;
+
+ if (d_really_is_negative(backing_dentry)) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ inode = fetch_regular_inode(dir->i_sb, backing_dentry);
+ if (IS_ERR(inode)) {
+ err = PTR_ERR(inode);
+ goto out;
+ }
+ d_instantiate(dentry, inode);
+ }
+
+out:
+ if (d_really_is_negative(dentry))
+ d_drop(dentry);
+ path_put(&backing_path);
+ mutex_unlock(&mi->mi_dir_struct_mutex);
+ if (err)
+ pr_debug("incfs: %s err:%d\n", __func__, err);
+ return err;
+}
+
+/* Delete file referenced by backing_dentry and also its hardlink from .index */
+static int final_file_delete(struct mount_info *mi,
+ struct dentry *backing_dentry)
+{
+ struct dentry *index_file_dentry = NULL;
+ /* 2 chars per byte of file ID + 1 char for \0 */
+ char file_id_str[2 * sizeof(incfs_uuid_t) + 1] = {0};
+ ssize_t uuid_size = 0;
+ int error = 0;
+
+ WARN_ON(!mutex_is_locked(&mi->mi_dir_struct_mutex));
+ uuid_size = vfs_getxattr(backing_dentry, INCFS_XATTR_ID_NAME,
+ file_id_str, 2 * sizeof(incfs_uuid_t));
+ if (uuid_size < 0) {
+ error = uuid_size;
+ goto out;
+ }
+
+ if (uuid_size != 2 * sizeof(incfs_uuid_t)) {
+ error = -EBADMSG;
+ goto out;
+ }
+
+ index_file_dentry = incfs_lookup_dentry(mi->mi_index_dir, file_id_str);
+ if (IS_ERR(index_file_dentry)) {
+ error = PTR_ERR(index_file_dentry);
+ goto out;
+ }
+
+ error = incfs_unlink(backing_dentry);
+ if (error)
+ goto out;
+
+ if (d_really_is_positive(index_file_dentry))
+ error = incfs_unlink(index_file_dentry);
+out:
+ dput(index_file_dentry);
+ if (error)
+ pr_debug("incfs: delete_file_from_index err:%d\n", error);
+ return error;
+}
+
+static int dir_unlink(struct inode *dir, struct dentry *dentry)
+{
+ struct mount_info *mi = get_mount_info(dir->i_sb);
+ struct path backing_path = {};
+ struct kstat stat;
+ int err = 0;
+
+ err = mutex_lock_interruptible(&mi->mi_dir_struct_mutex);
+ if (err)
+ return err;
+
+ get_incfs_backing_path(dentry, &backing_path);
+ if (!backing_path.dentry) {
+ err = -EBADF;
+ goto out;
+ }
+
+ if (backing_path.dentry->d_parent == mi->mi_index_dir) {
+ /* Direct unlink from .index are not allowed. */
+ err = -EBUSY;
+ goto out;
+ }
+
+ err = vfs_getattr(&backing_path, &stat, STATX_NLINK,
+ AT_STATX_SYNC_AS_STAT);
+ if (err)
+ goto out;
+
+ if (stat.nlink == 2) {
+ /*
+ * This is the last named link to this file. The only one left
+ * is in .index. Remove them both now.
+ */
+ err = final_file_delete(mi, backing_path.dentry);
+ } else {
+ /* There are other links to this file. Remove just this one. */
+ err = incfs_unlink(backing_path.dentry);
+ }
+
+ d_drop(dentry);
+out:
+ path_put(&backing_path);
+ if (err)
+ pr_debug("incfs: %s err:%d\n", __func__, err);
+ mutex_unlock(&mi->mi_dir_struct_mutex);
+ return err;
+}
+
+static int dir_link(struct dentry *old_dentry, struct inode *dir,
+ struct dentry *new_dentry)
+{
+ struct mount_info *mi = get_mount_info(dir->i_sb);
+ struct path backing_old_path = {};
+ struct path backing_new_path = {};
+ int error = 0;
+
+ error = mutex_lock_interruptible(&mi->mi_dir_struct_mutex);
+ if (error)
+ return error;
+
+ get_incfs_backing_path(old_dentry, &backing_old_path);
+ get_incfs_backing_path(new_dentry, &backing_new_path);
+
+ if (backing_new_path.dentry->d_parent == mi->mi_index_dir) {
+ /* Can't link to .index */
+ error = -EBUSY;
+ goto out;
+ }
+
+ error = incfs_link(backing_old_path.dentry, backing_new_path.dentry);
+ if (!error) {
+ struct inode *inode = NULL;
+ struct dentry *bdentry = backing_new_path.dentry;
+
+ if (d_really_is_negative(bdentry)) {
+ error = -EINVAL;
+ goto out;
+ }
+
+ inode = fetch_regular_inode(dir->i_sb, bdentry);
+ if (IS_ERR(inode)) {
+ error = PTR_ERR(inode);
+ goto out;
+ }
+ d_instantiate(new_dentry, inode);
+ }
+
+out:
+ path_put(&backing_old_path);
+ path_put(&backing_new_path);
+ if (error)
+ pr_debug("incfs: %s err:%d\n", __func__, error);
+ mutex_unlock(&mi->mi_dir_struct_mutex);
+ return error;
+}
+
+static int dir_rmdir(struct inode *dir, struct dentry *dentry)
+{
+ struct mount_info *mi = get_mount_info(dir->i_sb);
+ struct path backing_path = {};
+ int err = 0;
+
+ err = mutex_lock_interruptible(&mi->mi_dir_struct_mutex);
+ if (err)
+ return err;
+
+ get_incfs_backing_path(dentry, &backing_path);
+ if (!backing_path.dentry) {
+ err = -EBADF;
+ goto out;
+ }
+
+ if (backing_path.dentry == mi->mi_index_dir) {
+ /* Can't delete .index */
+ err = -EBUSY;
+ goto out;
+ }
+
+ err = incfs_rmdir(backing_path.dentry);
+ if (!err)
+ d_drop(dentry);
+out:
+ path_put(&backing_path);
+ if (err)
+ pr_debug("incfs: %s err:%d\n", __func__, err);
+ mutex_unlock(&mi->mi_dir_struct_mutex);
+ return err;
+}
+
+static int dir_rename(struct inode *old_dir, struct dentry *old_dentry,
+ struct inode *new_dir, struct dentry *new_dentry)
+{
+ struct mount_info *mi = get_mount_info(old_dir->i_sb);
+ struct dentry *backing_old_dentry;
+ struct dentry *backing_new_dentry;
+ struct dentry *backing_old_dir_dentry;
+ struct dentry *backing_new_dir_dentry;
+ struct inode *target_inode;
+ struct dentry *trap;
+ int error = 0;
+
+ error = mutex_lock_interruptible(&mi->mi_dir_struct_mutex);
+ if (error)
+ return error;
+
+ backing_old_dentry = get_incfs_dentry(old_dentry)->backing_path.dentry;
+ backing_new_dentry = get_incfs_dentry(new_dentry)->backing_path.dentry;
+ dget(backing_old_dentry);
+ dget(backing_new_dentry);
+
+ backing_old_dir_dentry = dget_parent(backing_old_dentry);
+ backing_new_dir_dentry = dget_parent(backing_new_dentry);
+ target_inode = d_inode(new_dentry);
+
+ if (backing_old_dir_dentry == mi->mi_index_dir) {
+ /* Direct moves from .index are not allowed. */
+ error = -EBUSY;
+ goto out;
+ }
+
+ trap = lock_rename(backing_old_dir_dentry, backing_new_dir_dentry);
+
+ if (trap == backing_old_dentry) {
+ error = -EINVAL;
+ goto unlock_out;
+ }
+ if (trap == backing_new_dentry) {
+ error = -ENOTEMPTY;
+ goto unlock_out;
+ }
+
+ error = vfs_rename(d_inode(backing_old_dir_dentry), backing_old_dentry,
+ d_inode(backing_new_dir_dentry), backing_new_dentry,
+ NULL, 0);
+ if (error)
+ goto unlock_out;
+ if (target_inode)
+ fsstack_copy_attr_all(target_inode,
+ get_incfs_node(target_inode)->n_backing_inode);
+ fsstack_copy_attr_all(new_dir, d_inode(backing_new_dir_dentry));
+ if (new_dir != old_dir)
+ fsstack_copy_attr_all(old_dir, d_inode(backing_old_dir_dentry));
+
+unlock_out:
+ unlock_rename(backing_old_dir_dentry, backing_new_dir_dentry);
+
+out:
+ dput(backing_new_dir_dentry);
+ dput(backing_old_dir_dentry);
+ dput(backing_new_dentry);
+ dput(backing_old_dentry);
+
+ mutex_unlock(&mi->mi_dir_struct_mutex);
+ if (error)
+ pr_debug("incfs: %s err:%d\n", __func__, error);
+ return error;
+}
+
+
+static int file_open(struct inode *inode, struct file *file)
+{
+ struct mount_info *mi = get_mount_info(inode->i_sb);
+ struct file *backing_file = NULL;
+ struct path backing_path = {};
+ int err = 0;
+ const struct cred *old_cred;
+
+ get_incfs_backing_path(file->f_path.dentry, &backing_path);
+ old_cred = override_creds(mi->mi_owner);
+ backing_file = dentry_open(&backing_path,
+ O_RDWR | O_NOATIME | O_LARGEFILE, current_cred());
+ revert_creds(old_cred);
+ path_put(&backing_path);
+
+ if (IS_ERR(backing_file)) {
+ err = PTR_ERR(backing_file);
+ backing_file = NULL;
+ goto out;
+ }
+
+ if (S_ISREG(inode->i_mode)) {
+ err = make_inode_ready_for_data_ops(mi, inode, backing_file);
+ file->private_data = (void *)CANT_FILL;
+ } else if (S_ISDIR(inode->i_mode)) {
+ struct dir_file *dir = NULL;
+
+ dir = incfs_open_dir_file(mi, backing_file);
+ if (IS_ERR(dir))
+ err = PTR_ERR(dir);
+ else
+ file->private_data = dir;
+ } else
+ err = -EBADF;
+
+out:
+ if (err)
+ pr_debug("incfs: %s name:%s err: %d\n", __func__,
+ file->f_path.dentry->d_name.name, err);
+ if (backing_file)
+ fput(backing_file);
+ return err;
+}
+
+static int file_release(struct inode *inode, struct file *file)
+{
+ if (S_ISREG(inode->i_mode)) {
+ /* Do nothing.
+ * data_file is released only by inode eviction.
+ */
+ } else if (S_ISDIR(inode->i_mode)) {
+ struct dir_file *dir = get_incfs_dir_file(file);
+
+ incfs_free_dir_file(dir);
+ }
+
+ return 0;
+}
+
+static int dentry_revalidate(struct dentry *d, unsigned int flags)
+{
+ struct path backing_path = {};
+ struct inode_info *info = get_incfs_node(d_inode(d));
+ struct inode *binode = (info == NULL) ? NULL : info->n_backing_inode;
+ struct dentry *backing_dentry = NULL;
+ int result = 0;
+
+ if (flags & LOOKUP_RCU)
+ return -ECHILD;
+
+ get_incfs_backing_path(d, &backing_path);
+ backing_dentry = backing_path.dentry;
+ if (!backing_dentry)
+ goto out;
+
+ if (d_inode(backing_dentry) != binode) {
+ /*
+ * Backing inodes obtained via dentry and inode don't match.
+ * It indicates that most likely backing dir has changed
+ * directly bypassing Incremental FS interface.
+ */
+ goto out;
+ }
+
+ if (backing_dentry->d_flags & DCACHE_OP_REVALIDATE) {
+ result = backing_dentry->d_op->d_revalidate(backing_dentry,
+ flags);
+ } else
+ result = 1;
+
+out:
+ path_put(&backing_path);
+ return result;
+}
+
+static void dentry_release(struct dentry *d)
+{
+ struct dentry_info *di = get_incfs_dentry(d);
+
+ if (di)
+ path_put(&di->backing_path);
+ kfree(d->d_fsdata);
+ d->d_fsdata = NULL;
+}
+
+static struct inode *alloc_inode(struct super_block *sb)
+{
+ struct inode_info *node = kzalloc(sizeof(*node), GFP_NOFS);
+
+ /* TODO: add a slab-based cache here. */
+ if (!node)
+ return NULL;
+ inode_init_once(&node->n_vfs_inode);
+ return &node->n_vfs_inode;
+}
+
+static void free_inode(struct inode *inode)
+{
+ struct inode_info *node = get_incfs_node(inode);
+
+ kfree(node);
+}
+
+static void evict_inode(struct inode *inode)
+{
+ struct inode_info *node = get_incfs_node(inode);
+
+ if (node) {
+ if (node->n_backing_inode) {
+ iput(node->n_backing_inode);
+ node->n_backing_inode = NULL;
+ }
+ if (node->n_file) {
+ incfs_free_data_file(node->n_file);
+ node->n_file = NULL;
+ }
+ }
+
+ truncate_inode_pages(&inode->i_data, 0);
+ clear_inode(inode);
+}
+
+static int incfs_setattr(struct dentry *dentry, struct iattr *ia)
+{
+ struct dentry_info *di = get_incfs_dentry(dentry);
+ struct dentry *backing_dentry;
+ struct inode *backing_inode;
+ int error;
+
+ if (ia->ia_valid & ATTR_SIZE)
+ return -EINVAL;
+
+ if (!di)
+ return -EINVAL;
+ backing_dentry = di->backing_path.dentry;
+ if (!backing_dentry)
+ return -EINVAL;
+
+ backing_inode = d_inode(backing_dentry);
+
+ /* incfs files are readonly, but the backing files must be writeable */
+ if (S_ISREG(backing_inode->i_mode)) {
+ if ((ia->ia_valid & ATTR_MODE) && (ia->ia_mode & 0222))
+ return -EINVAL;
+
+ ia->ia_mode |= 0222;
+ }
+
+ inode_lock(d_inode(backing_dentry));
+ error = notify_change(backing_dentry, ia, NULL);
+ inode_unlock(d_inode(backing_dentry));
+
+ if (error)
+ return error;
+
+ if (S_ISREG(backing_inode->i_mode))
+ ia->ia_mode &= ~0222;
+
+ return simple_setattr(dentry, ia);
+}
+
+static ssize_t incfs_getxattr(struct dentry *d, const char *name,
+ void *value, size_t size)
+{
+ struct dentry_info *di = get_incfs_dentry(d);
+ struct mount_info *mi = get_mount_info(d->d_sb);
+ char *stored_value;
+ size_t stored_size;
+
+ if (di && di->backing_path.dentry)
+ return vfs_getxattr(di->backing_path.dentry, name, value, size);
+
+ if (strcmp(name, "security.selinux"))
+ return -ENODATA;
+
+ if (!strcmp(d->d_iname, INCFS_PENDING_READS_FILENAME)) {
+ stored_value = mi->pending_read_xattr;
+ stored_size = mi->pending_read_xattr_size;
+ } else if (!strcmp(d->d_iname, INCFS_LOG_FILENAME)) {
+ stored_value = mi->log_xattr;
+ stored_size = mi->log_xattr_size;
+ } else {
+ return -ENODATA;
+ }
+
+ if (!stored_value)
+ return -ENODATA;
+
+ if (stored_size > size)
+ return -E2BIG;
+
+ memcpy(value, stored_value, stored_size);
+ return stored_size;
+
+}
+
+
+static ssize_t incfs_setxattr(struct dentry *d, const char *name,
+ const void *value, size_t size, int flags)
+{
+ struct dentry_info *di = get_incfs_dentry(d);
+ struct mount_info *mi = get_mount_info(d->d_sb);
+ void **stored_value;
+ size_t *stored_size;
+
+ if (di && di->backing_path.dentry)
+ return vfs_setxattr(di->backing_path.dentry, name, value, size,
+ flags);
+
+ if (strcmp(name, "security.selinux"))
+ return -ENODATA;
+
+ if (size > INCFS_MAX_FILE_ATTR_SIZE)
+ return -E2BIG;
+
+ if (!strcmp(d->d_iname, INCFS_PENDING_READS_FILENAME)) {
+ stored_value = &mi->pending_read_xattr;
+ stored_size = &mi->pending_read_xattr_size;
+ } else if (!strcmp(d->d_iname, INCFS_LOG_FILENAME)) {
+ stored_value = &mi->log_xattr;
+ stored_size = &mi->log_xattr_size;
+ } else {
+ return -ENODATA;
+ }
+
+ kfree (*stored_value);
+ *stored_value = kzalloc(size, GFP_NOFS);
+ if (!*stored_value)
+ return -ENOMEM;
+
+ memcpy(*stored_value, value, size);
+ *stored_size = size;
+ return 0;
+}
+
+static ssize_t incfs_listxattr(struct dentry *d, char *list, size_t size)
+{
+ struct dentry_info *di = get_incfs_dentry(d);
+
+ if (!di || !di->backing_path.dentry)
+ return -ENODATA;
+
+ return vfs_listxattr(di->backing_path.dentry, list, size);
+}
+
+struct dentry *incfs_mount_fs(struct file_system_type *type, int flags,
+ const char *dev_name, void *data)
+{
+ struct mount_options options = {};
+ struct mount_info *mi = NULL;
+ struct path backing_dir_path = {};
+ struct dentry *index_dir;
+ struct super_block *src_fs_sb = NULL;
+ struct inode *root_inode = NULL;
+ struct super_block *sb = sget(type, NULL, set_anon_super, flags, NULL);
+ int error = 0;
+
+ if (IS_ERR(sb))
+ return ERR_CAST(sb);
+
+ sb->s_op = &incfs_super_ops;
+ sb->s_d_op = &incfs_dentry_ops;
+ sb->s_flags |= S_NOATIME;
+ sb->s_magic = (long)INCFS_MAGIC_NUMBER;
+ sb->s_time_gran = 1;
+ sb->s_blocksize = INCFS_DATA_FILE_BLOCK_SIZE;
+ sb->s_blocksize_bits = blksize_bits(sb->s_blocksize);
+ sb->s_xattr = incfs_xattr_ops;
+
+ BUILD_BUG_ON(PAGE_SIZE != INCFS_DATA_FILE_BLOCK_SIZE);
+
+ error = parse_options(&options, (char *)data);
+ if (error != 0) {
+ pr_err("incfs: Options parsing error. %d\n", error);
+ goto err;
+ }
+
+ sb->s_bdi->ra_pages = options.readahead_pages;
+ if (!dev_name) {
+ pr_err("incfs: Backing dir is not set, filesystem can't be mounted.\n");
+ error = -ENOENT;
+ goto err;
+ }
+
+ error = kern_path(dev_name, LOOKUP_FOLLOW | LOOKUP_DIRECTORY,
+ &backing_dir_path);
+ if (error || backing_dir_path.dentry == NULL ||
+ !d_really_is_positive(backing_dir_path.dentry)) {
+ pr_err("incfs: Error accessing: %s.\n",
+ dev_name);
+ goto err;
+ }
+ src_fs_sb = backing_dir_path.dentry->d_sb;
+ sb->s_maxbytes = src_fs_sb->s_maxbytes;
+
+ mi = incfs_alloc_mount_info(sb, &options, &backing_dir_path);
+
+ if (IS_ERR_OR_NULL(mi)) {
+ error = PTR_ERR(mi);
+ pr_err("incfs: Error allocating mount info. %d\n", error);
+ mi = NULL;
+ goto err;
+ }
+
+ index_dir = open_or_create_index_dir(backing_dir_path.dentry);
+ if (IS_ERR_OR_NULL(index_dir)) {
+ error = PTR_ERR(index_dir);
+ pr_err("incfs: Can't find or create .index dir in %s\n",
+ dev_name);
+ goto err;
+ }
+ mi->mi_index_dir = index_dir;
+
+ sb->s_fs_info = mi;
+ root_inode = fetch_regular_inode(sb, backing_dir_path.dentry);
+ if (IS_ERR(root_inode)) {
+ error = PTR_ERR(root_inode);
+ goto err;
+ }
+
+ sb->s_root = d_make_root(root_inode);
+ if (!sb->s_root) {
+ error = -ENOMEM;
+ goto err;
+ }
+ error = incfs_init_dentry(sb->s_root, &backing_dir_path);
+ if (error)
+ goto err;
+
+ path_put(&backing_dir_path);
+ sb->s_flags |= SB_ACTIVE;
+
+ pr_debug("incfs: mount\n");
+ return dget(sb->s_root);
+err:
+ sb->s_fs_info = NULL;
+ path_put(&backing_dir_path);
+ incfs_free_mount_info(mi);
+ deactivate_locked_super(sb);
+ return ERR_PTR(error);
+}
+
+static int incfs_remount_fs(struct super_block *sb, int *flags, char *data)
+{
+ struct mount_options options;
+ struct mount_info *mi = get_mount_info(sb);
+ int err = 0;
+
+ sync_filesystem(sb);
+ err = parse_options(&options, (char *)data);
+ if (err)
+ return err;
+
+ err = incfs_realloc_mount_info(mi, &options);
+ if (err)
+ return err;
+
+ pr_debug("incfs: remount\n");
+ return 0;
+}
+
+void incfs_kill_sb(struct super_block *sb)
+{
+ struct mount_info *mi = sb->s_fs_info;
+
+ pr_debug("incfs: unmount\n");
+ incfs_free_mount_info(mi);
+ generic_shutdown_super(sb);
+}
+
+static int show_options(struct seq_file *m, struct dentry *root)
+{
+ struct mount_info *mi = get_mount_info(root->d_sb);
+
+ seq_printf(m, ",read_timeout_ms=%u", mi->mi_options.read_timeout_ms);
+ seq_printf(m, ",readahead=%u", mi->mi_options.readahead_pages);
+ if (mi->mi_options.read_log_pages != 0) {
+ seq_printf(m, ",rlog_pages=%u", mi->mi_options.read_log_pages);
+ seq_printf(m, ",rlog_wakeup_cnt=%u",
+ mi->mi_options.read_log_wakeup_count);
+ }
+ if (mi->mi_options.no_backing_file_cache)
+ seq_puts(m, ",no_bf_cache");
+ if (mi->mi_options.no_backing_file_readahead)
+ seq_puts(m, ",no_bf_readahead");
+ return 0;
+}
diff --git a/fs/incfs/vfs.h b/fs/incfs/vfs.h
new file mode 100644
index 0000000..eaa490e
--- /dev/null
+++ b/fs/incfs/vfs.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2018 Google LLC
+ */
+
+#ifndef _INCFS_VFS_H
+#define _INCFS_VFS_H
+
+void incfs_kill_sb(struct super_block *sb);
+struct dentry *incfs_mount_fs(struct file_system_type *type, int flags,
+ const char *dev_name, void *data);
+
+#endif
diff --git a/fs/inode.c b/fs/inode.c
index c9eb504..1887492 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -11,6 +11,7 @@
#include <linux/security.h>
#include <linux/cdev.h>
#include <linux/bootmem.h>
+#include <linux/fscrypt.h>
#include <linux/fsnotify.h>
#include <linux/mount.h>
#include <linux/posix_acl.h>
@@ -2169,3 +2170,89 @@ struct timespec64 current_time(struct inode *inode)
return timespec64_trunc(now, inode->i_sb->s_time_gran);
}
EXPORT_SYMBOL(current_time);
+
+/*
+ * Generic function to check FS_IOC_SETFLAGS values and reject any invalid
+ * configurations.
+ *
+ * Note: the caller should be holding i_mutex, or else be sure that they have
+ * exclusive access to the inode structure.
+ */
+int vfs_ioc_setflags_prepare(struct inode *inode, unsigned int oldflags,
+ unsigned int flags)
+{
+ /*
+ * The IMMUTABLE and APPEND_ONLY flags can only be changed by
+ * the relevant capability.
+ *
+ * This test looks nicer. Thanks to Pauline Middelink
+ */
+ if ((flags ^ oldflags) & (FS_APPEND_FL | FS_IMMUTABLE_FL) &&
+ !capable(CAP_LINUX_IMMUTABLE))
+ return -EPERM;
+
+ return fscrypt_prepare_setflags(inode, oldflags, flags);
+}
+EXPORT_SYMBOL(vfs_ioc_setflags_prepare);
+
+/*
+ * Generic function to check FS_IOC_FSSETXATTR values and reject any invalid
+ * configurations.
+ *
+ * Note: the caller should be holding i_mutex, or else be sure that they have
+ * exclusive access to the inode structure.
+ */
+int vfs_ioc_fssetxattr_check(struct inode *inode, const struct fsxattr *old_fa,
+ struct fsxattr *fa)
+{
+ /*
+ * Can't modify an immutable/append-only file unless we have
+ * appropriate permission.
+ */
+ if ((old_fa->fsx_xflags ^ fa->fsx_xflags) &
+ (FS_XFLAG_IMMUTABLE | FS_XFLAG_APPEND) &&
+ !capable(CAP_LINUX_IMMUTABLE))
+ return -EPERM;
+
+ /*
+ * Project Quota ID state is only allowed to change from within the init
+ * namespace. Enforce that restriction only if we are trying to change
+ * the quota ID state. Everything else is allowed in user namespaces.
+ */
+ if (current_user_ns() != &init_user_ns) {
+ if (old_fa->fsx_projid != fa->fsx_projid)
+ return -EINVAL;
+ if ((old_fa->fsx_xflags ^ fa->fsx_xflags) &
+ FS_XFLAG_PROJINHERIT)
+ return -EINVAL;
+ }
+
+ /* Check extent size hints. */
+ if ((fa->fsx_xflags & FS_XFLAG_EXTSIZE) && !S_ISREG(inode->i_mode))
+ return -EINVAL;
+
+ if ((fa->fsx_xflags & FS_XFLAG_EXTSZINHERIT) &&
+ !S_ISDIR(inode->i_mode))
+ return -EINVAL;
+
+ if ((fa->fsx_xflags & FS_XFLAG_COWEXTSIZE) &&
+ !S_ISREG(inode->i_mode) && !S_ISDIR(inode->i_mode))
+ return -EINVAL;
+
+ /*
+ * It is only valid to set the DAX flag on regular files and
+ * directories on filesystems.
+ */
+ if ((fa->fsx_xflags & FS_XFLAG_DAX) &&
+ !(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode)))
+ return -EINVAL;
+
+ /* Extent size hints of zero turn off the flags. */
+ if (fa->fsx_extsize == 0)
+ fa->fsx_xflags &= ~(FS_XFLAG_EXTSIZE | FS_XFLAG_EXTSZINHERIT);
+ if (fa->fsx_cowextsize == 0)
+ fa->fsx_xflags &= ~FS_XFLAG_COWEXTSIZE;
+
+ return 0;
+}
+EXPORT_SYMBOL(vfs_ioc_fssetxattr_check);
diff --git a/fs/internal.h b/fs/internal.h
index d109665..89cbc54 100644
--- a/fs/internal.h
+++ b/fs/internal.h
@@ -98,9 +98,11 @@ extern struct file *alloc_empty_file_noaccount(int, const struct cred *);
* super.c
*/
extern int do_remount_sb(struct super_block *, int, void *, int);
+extern int do_remount_sb2(struct vfsmount *, struct super_block *, int,
+ void *, int);
extern bool trylock_super(struct super_block *sb);
extern struct dentry *mount_fs(struct file_system_type *,
- int, const char *, void *);
+ int, const char *, struct vfsmount *, void *);
extern struct super_block *user_get_super(dev_t);
/*
diff --git a/fs/iomap.c b/fs/iomap.c
index ac7b215..881c2fb 100644
--- a/fs/iomap.c
+++ b/fs/iomap.c
@@ -14,6 +14,7 @@
#include <linux/module.h>
#include <linux/compiler.h>
#include <linux/fs.h>
+#include <linux/fscrypt.h>
#include <linux/iomap.h>
#include <linux/uaccess.h>
#include <linux/gfp.h>
@@ -1594,10 +1595,13 @@ static blk_qc_t
iomap_dio_zero(struct iomap_dio *dio, struct iomap *iomap, loff_t pos,
unsigned len)
{
+ struct inode *inode = file_inode(dio->iocb->ki_filp);
struct page *page = ZERO_PAGE(0);
struct bio *bio;
bio = bio_alloc(GFP_KERNEL, 1);
+ fscrypt_set_bio_crypt_ctx(bio, inode, pos >> inode->i_blkbits,
+ GFP_KERNEL);
bio_set_dev(bio, iomap->bdev);
bio->bi_iter.bi_sector = iomap_sector(iomap, pos);
bio->bi_private = dio;
@@ -1678,6 +1682,8 @@ iomap_dio_bio_actor(struct inode *inode, loff_t pos, loff_t length,
}
bio = bio_alloc(GFP_KERNEL, nr_pages);
+ fscrypt_set_bio_crypt_ctx(bio, inode, pos >> inode->i_blkbits,
+ GFP_KERNEL);
bio_set_dev(bio, iomap->bdev);
bio->bi_iter.bi_sector = iomap_sector(iomap, pos);
bio->bi_write_hint = dio->iocb->ki_hint;
diff --git a/fs/jffs2/file.c b/fs/jffs2/file.c
index 7d8654a..f8fb89b 100644
--- a/fs/jffs2/file.c
+++ b/fs/jffs2/file.c
@@ -109,9 +109,9 @@ static int jffs2_do_readpage_nolock (struct inode *inode, struct page *pg)
return ret;
}
-int jffs2_do_readpage_unlock(struct inode *inode, struct page *pg)
+int jffs2_do_readpage_unlock(void *data, struct page *pg)
{
- int ret = jffs2_do_readpage_nolock(inode, pg);
+ int ret = jffs2_do_readpage_nolock(data, pg);
unlock_page(pg);
return ret;
}
diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c
index eab04ec..7fbe8a7 100644
--- a/fs/jffs2/fs.c
+++ b/fs/jffs2/fs.c
@@ -686,7 +686,7 @@ unsigned char *jffs2_gc_fetch_page(struct jffs2_sb_info *c,
struct page *pg;
pg = read_cache_page(inode->i_mapping, offset >> PAGE_SHIFT,
- (void *)jffs2_do_readpage_unlock, inode);
+ jffs2_do_readpage_unlock, inode);
if (IS_ERR(pg))
return (void *)pg;
diff --git a/fs/jffs2/os-linux.h b/fs/jffs2/os-linux.h
index a2dbbb3..bd3d5f0d 100644
--- a/fs/jffs2/os-linux.h
+++ b/fs/jffs2/os-linux.h
@@ -155,7 +155,7 @@ extern const struct file_operations jffs2_file_operations;
extern const struct inode_operations jffs2_file_inode_operations;
extern const struct address_space_operations jffs2_file_address_operations;
int jffs2_fsync(struct file *, loff_t, loff_t, int);
-int jffs2_do_readpage_unlock (struct inode *inode, struct page *pg);
+int jffs2_do_readpage_unlock(void *data, struct page *pg);
/* ioctl.c */
long jffs2_ioctl(struct file *, unsigned int, unsigned long);
diff --git a/fs/kernfs/file.c b/fs/kernfs/file.c
index dbf5bc2..2d8b91f 100644
--- a/fs/kernfs/file.c
+++ b/fs/kernfs/file.c
@@ -832,26 +832,35 @@ void kernfs_drain_open_files(struct kernfs_node *kn)
* to see if it supports poll (Neither 'poll' nor 'select' return
* an appropriate error code). When in doubt, set a suitable timeout value.
*/
+__poll_t kernfs_generic_poll(struct kernfs_open_file *of, poll_table *wait)
+{
+ struct kernfs_node *kn = kernfs_dentry_node(of->file->f_path.dentry);
+ struct kernfs_open_node *on = kn->attr.open;
+
+ poll_wait(of->file, &on->poll, wait);
+
+ if (of->event != atomic_read(&on->event))
+ return DEFAULT_POLLMASK|EPOLLERR|EPOLLPRI;
+
+ return DEFAULT_POLLMASK;
+}
+
static __poll_t kernfs_fop_poll(struct file *filp, poll_table *wait)
{
struct kernfs_open_file *of = kernfs_of(filp);
struct kernfs_node *kn = kernfs_dentry_node(filp->f_path.dentry);
- struct kernfs_open_node *on = kn->attr.open;
+ __poll_t ret;
if (!kernfs_get_active(kn))
- goto trigger;
+ return DEFAULT_POLLMASK|EPOLLERR|EPOLLPRI;
- poll_wait(filp, &on->poll, wait);
+ if (kn->attr.ops->poll)
+ ret = kn->attr.ops->poll(of, wait);
+ else
+ ret = kernfs_generic_poll(of, wait);
kernfs_put_active(kn);
-
- if (of->event != atomic_read(&on->event))
- goto trigger;
-
- return DEFAULT_POLLMASK;
-
- trigger:
- return DEFAULT_POLLMASK|EPOLLERR|EPOLLPRI;
+ return ret;
}
static void kernfs_notify_workfn(struct work_struct *work)
diff --git a/fs/kernfs/symlink.c b/fs/kernfs/symlink.c
index 162f43b..2269e53 100644
--- a/fs/kernfs/symlink.c
+++ b/fs/kernfs/symlink.c
@@ -54,6 +54,7 @@ struct kernfs_node *kernfs_create_link(struct kernfs_node *parent,
kernfs_put(kn);
return ERR_PTR(error);
}
+EXPORT_SYMBOL_GPL(kernfs_create_link);
static int kernfs_get_target_path(struct kernfs_node *parent,
struct kernfs_node *target, char *path)
diff --git a/fs/libfs.c b/fs/libfs.c
index be57e64..3bc8205b2 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -16,6 +16,8 @@
#include <linux/exportfs.h>
#include <linux/writeback.h>
#include <linux/buffer_head.h> /* sync_mapping_buffers */
+#include <linux/unicode.h>
+#include <linux/fscrypt.h>
#include <linux/uaccess.h>
@@ -1262,3 +1264,128 @@ bool is_empty_dir_inode(struct inode *inode)
return (inode->i_fop == &empty_dir_operations) &&
(inode->i_op == &empty_dir_inode_operations);
}
+
+#ifdef CONFIG_UNICODE
+bool needs_casefold(const struct inode *dir)
+{
+ return IS_CASEFOLDED(dir) && dir->i_sb->s_encoding &&
+ (!IS_ENCRYPTED(dir) || fscrypt_has_encryption_key(dir));
+}
+EXPORT_SYMBOL(needs_casefold);
+
+int generic_ci_d_compare(const struct dentry *dentry, unsigned int len,
+ const char *str, const struct qstr *name)
+{
+ const struct dentry *parent = READ_ONCE(dentry->d_parent);
+ const struct inode *inode = READ_ONCE(parent->d_inode);
+ const struct super_block *sb = dentry->d_sb;
+ const struct unicode_map *um = sb->s_encoding;
+ struct qstr entry = QSTR_INIT(str, len);
+ char strbuf[DNAME_INLINE_LEN];
+ int ret;
+
+ if (!inode || !needs_casefold(inode))
+ goto fallback;
+
+ /*
+ * If the dentry name is stored in-line, then it may be concurrently
+ * modified by a rename. If this happens, the VFS will eventually retry
+ * the lookup, so it doesn't matter what ->d_compare() returns.
+ * However, it's unsafe to call utf8_strncasecmp() with an unstable
+ * string. Therefore, we have to copy the name into a temporary buffer.
+ */
+ if (len <= DNAME_INLINE_LEN - 1) {
+ memcpy(strbuf, str, len);
+ strbuf[len] = 0;
+ entry.name = strbuf;
+ /* prevent compiler from optimizing out the temporary buffer */
+ barrier();
+ }
+
+ ret = utf8_strncasecmp(um, name, &entry);
+ if (ret >= 0)
+ return ret;
+
+ if (sb_has_enc_strict_mode(sb))
+ return -EINVAL;
+fallback:
+ if (len != name->len)
+ return 1;
+ return !!memcmp(str, name->name, len);
+}
+EXPORT_SYMBOL(generic_ci_d_compare);
+
+int generic_ci_d_hash(const struct dentry *dentry, struct qstr *str)
+{
+ const struct inode *inode = READ_ONCE(dentry->d_inode);
+ struct super_block *sb = dentry->d_sb;
+ const struct unicode_map *um = sb->s_encoding;
+ int ret = 0;
+
+ if (!inode || !needs_casefold(inode))
+ return 0;
+
+ ret = utf8_casefold_hash(um, dentry, str);
+ if (ret < 0)
+ goto err;
+
+ return 0;
+err:
+ if (sb_has_enc_strict_mode(sb))
+ ret = -EINVAL;
+ else
+ ret = 0;
+ return ret;
+}
+EXPORT_SYMBOL(generic_ci_d_hash);
+
+static const struct dentry_operations generic_ci_dentry_ops = {
+ .d_hash = generic_ci_d_hash,
+ .d_compare = generic_ci_d_compare,
+};
+#endif
+
+#ifdef CONFIG_FS_ENCRYPTION
+static const struct dentry_operations generic_encrypted_dentry_ops = {
+ .d_revalidate = fscrypt_d_revalidate,
+};
+#endif
+
+#if IS_ENABLED(CONFIG_UNICODE) && IS_ENABLED(CONFIG_FS_ENCRYPTION)
+static const struct dentry_operations generic_encrypted_ci_dentry_ops = {
+ .d_hash = generic_ci_d_hash,
+ .d_compare = generic_ci_d_compare,
+ .d_revalidate = fscrypt_d_revalidate,
+};
+#endif
+
+/**
+ * generic_set_encrypted_ci_d_ops - helper for setting d_ops for given dentry
+ * @dir: parent of dentry whose ops to set
+ * @dentry: detnry to set ops on
+ *
+ * This function sets the dentry ops for the given dentry to handle both
+ * casefolding and encryption of the dentry name.
+ */
+void generic_set_encrypted_ci_d_ops(struct inode *dir, struct dentry *dentry)
+{
+#ifdef CONFIG_FS_ENCRYPTION
+ if (dentry->d_flags & DCACHE_ENCRYPTED_NAME) {
+#ifdef CONFIG_UNICODE
+ if (dir->i_sb->s_encoding) {
+ d_set_d_op(dentry, &generic_encrypted_ci_dentry_ops);
+ return;
+ }
+#endif
+ d_set_d_op(dentry, &generic_encrypted_dentry_ops);
+ return;
+ }
+#endif
+#ifdef CONFIG_UNICODE
+ if (dir->i_sb->s_encoding) {
+ d_set_d_op(dentry, &generic_ci_dentry_ops);
+ return;
+ }
+#endif
+}
+EXPORT_SYMBOL(generic_set_encrypted_ci_d_ops);
diff --git a/fs/mpage.c b/fs/mpage.c
index c820dc9..ddf7bb8 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -32,6 +32,16 @@
#include <linux/cleancache.h>
#include "internal.h"
+#define CREATE_TRACE_POINTS
+#include <trace/events/android_fs.h>
+
+EXPORT_TRACEPOINT_SYMBOL(android_fs_datawrite_start);
+EXPORT_TRACEPOINT_SYMBOL(android_fs_datawrite_end);
+EXPORT_TRACEPOINT_SYMBOL(android_fs_dataread_start);
+EXPORT_TRACEPOINT_SYMBOL(android_fs_dataread_end);
+EXPORT_TRACEPOINT_SYMBOL(android_fs_fsync_start);
+EXPORT_TRACEPOINT_SYMBOL(android_fs_fsync_end);
+
/*
* I/O completion handler for multipage BIOs.
*
@@ -49,6 +59,16 @@ static void mpage_end_io(struct bio *bio)
struct bio_vec *bv;
int i;
+ if (trace_android_fs_dataread_end_enabled() &&
+ (bio_data_dir(bio) == READ)) {
+ struct page *first_page = bio->bi_io_vec[0].bv_page;
+
+ if (first_page != NULL)
+ trace_android_fs_dataread_end(first_page->mapping->host,
+ page_offset(first_page),
+ bio->bi_iter.bi_size);
+ }
+
bio_for_each_segment_all(bv, bio, i) {
struct page *page = bv->bv_page;
page_endio(page, bio_op(bio),
@@ -60,6 +80,24 @@ static void mpage_end_io(struct bio *bio)
static struct bio *mpage_bio_submit(int op, int op_flags, struct bio *bio)
{
+ if (trace_android_fs_dataread_start_enabled() && (op == REQ_OP_READ)) {
+ struct page *first_page = bio->bi_io_vec[0].bv_page;
+
+ if (first_page != NULL) {
+ char *path, pathbuf[MAX_TRACE_PATHBUF_LEN];
+
+ path = android_fstrace_get_pathname(pathbuf,
+ MAX_TRACE_PATHBUF_LEN,
+ first_page->mapping->host);
+ trace_android_fs_dataread_start(
+ first_page->mapping->host,
+ page_offset(first_page),
+ bio->bi_iter.bi_size,
+ current->pid,
+ path,
+ current->comm);
+ }
+ }
bio->bi_end_io = mpage_end_io;
bio_set_op_attrs(bio, op, op_flags);
guard_bio_eod(op, bio);
diff --git a/fs/namei.c b/fs/namei.c
index 327844f..bf14c71 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -44,6 +44,9 @@
#include "internal.h"
#include "mount.h"
+#define CREATE_TRACE_POINTS
+#include <trace/events/namei.h>
+
/* [Feb-1997 T. Schoebel-Theuer]
* Fundamental changes in the pathname lookup mechanisms (namei)
* were necessary because of omirr. The reason is that omirr needs
@@ -769,6 +772,81 @@ static inline int d_revalidate(struct dentry *dentry, unsigned int flags)
return 1;
}
+#define INIT_PATH_SIZE 64
+
+static void success_walk_trace(struct nameidata *nd)
+{
+ struct path *pt = &nd->path;
+ struct inode *i = nd->inode;
+ char buf[INIT_PATH_SIZE], *try_buf;
+ int cur_path_size;
+ char *p;
+
+ /* When eBPF/ tracepoint is disabled, keep overhead low. */
+ if (!trace_inodepath_enabled())
+ return;
+
+ /* First try stack allocated buffer. */
+ try_buf = buf;
+ cur_path_size = INIT_PATH_SIZE;
+
+ while (cur_path_size <= PATH_MAX) {
+ /* Free previous heap allocation if we are now trying
+ * a second or later heap allocation.
+ */
+ if (try_buf != buf)
+ kfree(try_buf);
+
+ /* All but the first alloc are on the heap. */
+ if (cur_path_size != INIT_PATH_SIZE) {
+ try_buf = kmalloc(cur_path_size, GFP_KERNEL);
+ if (!try_buf) {
+ try_buf = buf;
+ sprintf(try_buf, "error:buf_alloc_failed");
+ break;
+ }
+ }
+
+ p = d_path(pt, try_buf, cur_path_size);
+
+ if (!IS_ERR(p)) {
+ char *end = mangle_path(try_buf, p, "\n");
+
+ if (end) {
+ try_buf[end - try_buf] = 0;
+ break;
+ } else {
+ /* On mangle errors, double path size
+ * till PATH_MAX.
+ */
+ cur_path_size = cur_path_size << 1;
+ continue;
+ }
+ }
+
+ if (PTR_ERR(p) == -ENAMETOOLONG) {
+ /* If d_path complains that name is too long,
+ * then double path size till PATH_MAX.
+ */
+ cur_path_size = cur_path_size << 1;
+ continue;
+ }
+
+ sprintf(try_buf, "error:d_path_failed_%lu",
+ -1 * PTR_ERR(p));
+ break;
+ }
+
+ if (cur_path_size > PATH_MAX)
+ sprintf(try_buf, "error:d_path_name_too_long");
+
+ trace_inodepath(i, try_buf);
+
+ if (try_buf != buf)
+ kfree(try_buf);
+ return;
+}
+
/**
* complete_walk - successful completion of path walk
* @nd: pointer nameidata
@@ -791,15 +869,21 @@ static int complete_walk(struct nameidata *nd)
return -ECHILD;
}
- if (likely(!(nd->flags & LOOKUP_JUMPED)))
+ if (likely(!(nd->flags & LOOKUP_JUMPED))) {
+ success_walk_trace(nd);
return 0;
+ }
- if (likely(!(dentry->d_flags & DCACHE_OP_WEAK_REVALIDATE)))
+ if (likely(!(dentry->d_flags & DCACHE_OP_WEAK_REVALIDATE))) {
+ success_walk_trace(nd);
return 0;
+ }
status = dentry->d_op->d_weak_revalidate(dentry, nd->flags);
- if (status > 0)
+ if (status > 0) {
+ success_walk_trace(nd);
return 0;
+ }
if (!status)
status = -ESTALE;
@@ -1069,7 +1153,7 @@ const char *get_link(struct nameidata *nd)
return ERR_PTR(error);
nd->last_type = LAST_BIND;
- res = inode->i_link;
+ res = READ_ONCE(inode->i_link);
if (!res) {
const char * (*get)(struct dentry *, struct inode *,
struct delayed_call *);
@@ -4733,7 +4817,7 @@ int vfs_readlink(struct dentry *dentry, char __user *buffer, int buflen)
spin_unlock(&inode->i_lock);
}
- link = inode->i_link;
+ link = READ_ONCE(inode->i_link);
if (!link) {
link = inode->i_op->get_link(dentry, inode, &done);
if (IS_ERR(link))
diff --git a/fs/namespace.c b/fs/namespace.c
index 2f3c6a0..8775302 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -200,6 +200,7 @@ static struct mount *alloc_vfsmnt(const char *name)
mnt->mnt_count = 1;
mnt->mnt_writers = 0;
#endif
+ mnt->mnt.data = NULL;
INIT_HLIST_NODE(&mnt->mnt_hash);
INIT_LIST_HEAD(&mnt->mnt_child);
@@ -552,6 +553,7 @@ int sb_prepare_remount_readonly(struct super_block *sb)
static void free_vfsmnt(struct mount *mnt)
{
+ kfree(mnt->mnt.data);
kfree_const(mnt->mnt_devname);
#ifdef CONFIG_SMP
free_percpu(mnt->mnt_pcp);
@@ -955,10 +957,18 @@ vfs_kern_mount(struct file_system_type *type, int flags, const char *name, void
if (!mnt)
return ERR_PTR(-ENOMEM);
+ if (type->alloc_mnt_data) {
+ mnt->mnt.data = type->alloc_mnt_data();
+ if (!mnt->mnt.data) {
+ mnt_free_id(mnt);
+ free_vfsmnt(mnt);
+ return ERR_PTR(-ENOMEM);
+ }
+ }
if (flags & SB_KERNMOUNT)
mnt->mnt.mnt_flags = MNT_INTERNAL;
- root = mount_fs(type, flags, name, data);
+ root = mount_fs(type, flags, name, &mnt->mnt, data);
if (IS_ERR(root)) {
mnt_free_id(mnt);
free_vfsmnt(mnt);
@@ -1002,6 +1012,14 @@ static struct mount *clone_mnt(struct mount *old, struct dentry *root,
if (!mnt)
return ERR_PTR(-ENOMEM);
+ if (sb->s_op->clone_mnt_data) {
+ mnt->mnt.data = sb->s_op->clone_mnt_data(old->mnt.data);
+ if (!mnt->mnt.data) {
+ err = -ENOMEM;
+ goto out_free;
+ }
+ }
+
if (flag & (CL_SLAVE | CL_PRIVATE | CL_SHARED_TO_SLAVE))
mnt->mnt_group_id = 0; /* not a peer of original */
else
@@ -2309,8 +2327,14 @@ static int do_remount(struct path *path, int ms_flags, int sb_flags,
err = change_mount_flags(path->mnt, ms_flags);
else if (!ns_capable(sb->s_user_ns, CAP_SYS_ADMIN))
err = -EPERM;
- else
- err = do_remount_sb(sb, sb_flags, data, 0);
+ else {
+ err = do_remount_sb2(path->mnt, sb, sb_flags, data, 0);
+ namespace_lock();
+ lock_mount_hash();
+ propagate_remount(mnt);
+ unlock_mount_hash();
+ namespace_unlock();
+ }
if (!err) {
lock_mount_hash();
mnt_flags |= mnt->mnt.mnt_flags & ~MNT_USER_SETTABLE_MASK;
@@ -2707,7 +2731,7 @@ void *copy_mount_options(const void __user * data)
* the remainder of the page.
*/
/* copy_from_user cannot cross TASK_SIZE ! */
- size = TASK_SIZE - (unsigned long)data;
+ size = TASK_SIZE - (unsigned long)untagged_addr(data);
if (size > PAGE_SIZE)
size = PAGE_SIZE;
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 733fd9e..51fefea 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -679,8 +679,9 @@ int nfs_readdir_xdr_to_array(nfs_readdir_descriptor_t *desc, struct page *page,
* We only need to convert from xdr once so future lookups are much simpler
*/
static
-int nfs_readdir_filler(nfs_readdir_descriptor_t *desc, struct page* page)
+int nfs_readdir_filler(void *data, struct page* page)
{
+ nfs_readdir_descriptor_t *desc = data;
struct inode *inode = file_inode(desc->file);
int ret;
@@ -711,8 +712,8 @@ void cache_page_release(nfs_readdir_descriptor_t *desc)
static
struct page *get_cache_page(nfs_readdir_descriptor_t *desc)
{
- return read_cache_page(desc->file->f_mapping,
- desc->page_index, (filler_t *)nfs_readdir_filler, desc);
+ return read_cache_page(desc->file->f_mapping, desc->page_index,
+ nfs_readdir_filler, desc);
}
/*
diff --git a/fs/nfs/symlink.c b/fs/nfs/symlink.c
index 06eb44b..25ba299 100644
--- a/fs/nfs/symlink.c
+++ b/fs/nfs/symlink.c
@@ -26,8 +26,9 @@
* and straight-forward than readdir caching.
*/
-static int nfs_symlink_filler(struct inode *inode, struct page *page)
+static int nfs_symlink_filler(void *data, struct page *page)
{
+ struct inode *inode = data;
int error;
error = NFS_PROTO(inode)->readlink(inode, page, 0, PAGE_SIZE);
@@ -65,8 +66,8 @@ static const char *nfs_get_link(struct dentry *dentry,
err = ERR_PTR(nfs_revalidate_mapping(inode, inode->i_mapping));
if (err)
return err;
- page = read_cache_page(&inode->i_data, 0,
- (filler_t *)nfs_symlink_filler, inode);
+ page = read_cache_page(&inode->i_data, 0, nfs_symlink_filler,
+ inode);
if (IS_ERR(page))
return ERR_CAST(page);
}
diff --git a/fs/notify/fanotify/Kconfig b/fs/notify/fanotify/Kconfig
index 41355ce..f5b0b3a 100644
--- a/fs/notify/fanotify/Kconfig
+++ b/fs/notify/fanotify/Kconfig
@@ -1,7 +1,6 @@
config FANOTIFY
bool "Filesystem wide access notification"
select FSNOTIFY
- select ANON_INODES
default n
---help---
Say Y here to enable fanotify support. fanotify is a file access
diff --git a/fs/notify/inotify/Kconfig b/fs/notify/inotify/Kconfig
index b981fc0..0161c74 100644
--- a/fs/notify/inotify/Kconfig
+++ b/fs/notify/inotify/Kconfig
@@ -1,6 +1,5 @@
config INOTIFY_USER
bool "Inotify support for userspace"
- select ANON_INODES
select FSNOTIFY
default y
---help---
diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c
index 97a5169..9d220c7 100644
--- a/fs/notify/inotify/inotify_user.c
+++ b/fs/notify/inotify/inotify_user.c
@@ -702,6 +702,8 @@ SYSCALL_DEFINE3(inotify_add_watch, int, fd, const char __user *, pathname,
struct fsnotify_group *group;
struct inode *inode;
struct path path;
+ struct path alteredpath;
+ struct path *canonical_path = &path;
struct fd f;
int ret;
unsigned flags = 0;
@@ -747,13 +749,23 @@ SYSCALL_DEFINE3(inotify_add_watch, int, fd, const char __user *, pathname,
if (ret)
goto fput_and_out;
+ /* support stacked filesystems */
+ if (path.dentry && path.dentry->d_op) {
+ if (path.dentry->d_op->d_canonical_path) {
+ path.dentry->d_op->d_canonical_path(&path,
+ &alteredpath);
+ canonical_path = &alteredpath;
+ path_put(&path);
+ }
+ }
+
/* inode held in place by reference to path; group by fget on fd */
- inode = path.dentry->d_inode;
+ inode = canonical_path->dentry->d_inode;
group = f.file->private_data;
/* create/update an inode mark */
ret = inotify_update_watch(group, inode, mask);
- path_put(&path);
+ path_put(canonical_path);
fput_and_out:
fdput(f);
return ret;
diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c
index 30abafc..fb70ec3b2 100644
--- a/fs/overlayfs/copy_up.c
+++ b/fs/overlayfs/copy_up.c
@@ -860,7 +860,7 @@ int ovl_copy_up_flags(struct dentry *dentry, int flags)
dput(parent);
dput(next);
}
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
return err;
}
diff --git a/fs/overlayfs/dir.c b/fs/overlayfs/dir.c
index 0b4ee1a..6e88909 100644
--- a/fs/overlayfs/dir.c
+++ b/fs/overlayfs/dir.c
@@ -542,7 +542,7 @@ static int ovl_create_or_link(struct dentry *dentry, struct inode *inode,
struct ovl_cattr *attr, bool origin)
{
int err;
- const struct cred *old_cred;
+ const struct cred *old_cred, *hold_cred = NULL;
struct cred *override_cred;
struct dentry *parent = dentry->d_parent;
@@ -569,14 +569,15 @@ static int ovl_create_or_link(struct dentry *dentry, struct inode *inode,
override_cred->fsgid = inode->i_gid;
if (!attr->hardlink) {
err = security_dentry_create_files_as(dentry,
- attr->mode, &dentry->d_name, old_cred,
+ attr->mode, &dentry->d_name,
+ old_cred ? old_cred : current_cred(),
override_cred);
if (err) {
put_cred(override_cred);
goto out_revert_creds;
}
}
- put_cred(override_creds(override_cred));
+ hold_cred = override_creds(override_cred);
put_cred(override_cred);
if (!ovl_dentry_is_whiteout(dentry))
@@ -585,7 +586,9 @@ static int ovl_create_or_link(struct dentry *dentry, struct inode *inode,
err = ovl_create_over_whiteout(dentry, inode, attr);
}
out_revert_creds:
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred ?: hold_cred);
+ if (old_cred && hold_cred)
+ put_cred(hold_cred);
return err;
}
@@ -661,7 +664,7 @@ static int ovl_set_link_redirect(struct dentry *dentry)
old_cred = ovl_override_creds(dentry->d_sb);
err = ovl_set_redirect(dentry, false);
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
return err;
}
@@ -859,7 +862,7 @@ static int ovl_do_remove(struct dentry *dentry, bool is_dir)
err = ovl_remove_upper(dentry, is_dir, &list);
else
err = ovl_remove_and_whiteout(dentry, &list);
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
if (!err) {
if (is_dir)
clear_nlink(dentry->d_inode);
@@ -1227,7 +1230,7 @@ static int ovl_rename(struct inode *olddir, struct dentry *old,
out_unlock:
unlock_rename(new_upperdir, old_upperdir);
out_revert_creds:
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
ovl_nlink_end(new, locked);
out_drop_write:
ovl_drop_write(old);
diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c
index 73c3e2c..818a8ee 100644
--- a/fs/overlayfs/file.c
+++ b/fs/overlayfs/file.c
@@ -38,7 +38,7 @@ static struct file *ovl_open_realfile(const struct file *file,
old_cred = ovl_override_creds(inode->i_sb);
realfile = open_with_fake_path(&file->f_path, flags, realinode,
current_cred());
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
pr_debug("open(%p[%pD2/%c], 0%o) -> (%p, 0%o)\n",
file, file, ovl_whatisit(inode, realinode), file->f_flags,
@@ -181,7 +181,7 @@ static loff_t ovl_llseek(struct file *file, loff_t offset, int whence)
old_cred = ovl_override_creds(inode->i_sb);
ret = vfs_llseek(real.file, offset, whence);
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
file->f_pos = real.file->f_pos;
inode_unlock(inode);
@@ -247,7 +247,7 @@ static ssize_t ovl_read_iter(struct kiocb *iocb, struct iov_iter *iter)
old_cred = ovl_override_creds(file_inode(file)->i_sb);
ret = vfs_iter_read(real.file, iter, &iocb->ki_pos,
ovl_iocb_to_rwf(iocb));
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
ovl_file_accessed(file);
@@ -283,7 +283,7 @@ static ssize_t ovl_write_iter(struct kiocb *iocb, struct iov_iter *iter)
ret = vfs_iter_write(real.file, iter, &iocb->ki_pos,
ovl_iocb_to_rwf(iocb));
file_end_write(real.file);
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
/* Update size */
ovl_copyattr(ovl_inode_real(inode), inode);
@@ -310,7 +310,7 @@ static int ovl_fsync(struct file *file, loff_t start, loff_t end, int datasync)
if (file_inode(real.file) == ovl_inode_upper(file_inode(file))) {
old_cred = ovl_override_creds(file_inode(file)->i_sb);
ret = vfs_fsync_range(real.file, start, end, datasync);
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
}
fdput(real);
@@ -334,7 +334,7 @@ static int ovl_mmap(struct file *file, struct vm_area_struct *vma)
old_cred = ovl_override_creds(file_inode(file)->i_sb);
ret = call_mmap(vma->vm_file, vma);
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
if (ret) {
/* Drop reference count from new vm_file value */
@@ -362,7 +362,7 @@ static long ovl_fallocate(struct file *file, int mode, loff_t offset, loff_t len
old_cred = ovl_override_creds(file_inode(file)->i_sb);
ret = vfs_fallocate(real.file, mode, offset, len);
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
/* Update size */
ovl_copyattr(ovl_inode_real(inode), inode);
@@ -384,7 +384,7 @@ static int ovl_fadvise(struct file *file, loff_t offset, loff_t len, int advice)
old_cred = ovl_override_creds(file_inode(file)->i_sb);
ret = vfs_fadvise(real.file, offset, len, advice);
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
fdput(real);
@@ -404,7 +404,7 @@ static long ovl_real_ioctl(struct file *file, unsigned int cmd,
old_cred = ovl_override_creds(file_inode(file)->i_sb);
ret = vfs_ioctl(real.file, cmd, arg);
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
fdput(real);
@@ -593,7 +593,7 @@ static ssize_t ovl_copyfile(struct file *file_in, loff_t pos_in,
real_out.file, pos_out, len);
break;
}
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
/* Update size */
ovl_copyattr(ovl_inode_real(inode_out), inode_out);
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index 08e60a6..7f3787a 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -64,7 +64,7 @@ int ovl_setattr(struct dentry *dentry, struct iattr *attr)
inode_lock(upperdentry->d_inode);
old_cred = ovl_override_creds(dentry->d_sb);
err = notify_change(upperdentry, attr, NULL);
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
if (!err)
ovl_copyattr(upperdentry->d_inode, dentry->d_inode);
inode_unlock(upperdentry->d_inode);
@@ -266,7 +266,7 @@ int ovl_getattr(const struct path *path, struct kstat *stat,
stat->nlink = dentry->d_inode->i_nlink;
out:
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
return err;
}
@@ -300,7 +300,7 @@ int ovl_permission(struct inode *inode, int mask)
mask |= MAY_READ;
}
err = inode_permission(realinode, mask);
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
return err;
}
@@ -317,7 +317,7 @@ static const char *ovl_get_link(struct dentry *dentry,
old_cred = ovl_override_creds(dentry->d_sb);
p = vfs_get_link(ovl_dentry_real(dentry), done);
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
return p;
}
@@ -362,7 +362,7 @@ int ovl_xattr_set(struct dentry *dentry, struct inode *inode, const char *name,
WARN_ON(flags != XATTR_REPLACE);
err = vfs_removexattr(realdentry, name);
}
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
/* copy c/mtime */
ovl_copyattr(d_inode(realdentry), inode);
@@ -373,6 +373,21 @@ int ovl_xattr_set(struct dentry *dentry, struct inode *inode, const char *name,
return err;
}
+int __ovl_xattr_get(struct dentry *dentry, struct inode *inode,
+ const char *name, void *value, size_t size)
+{
+ ssize_t res;
+ const struct cred *old_cred;
+ struct dentry *realdentry =
+ ovl_i_dentry_upper(inode) ?: ovl_dentry_lower(dentry);
+
+ old_cred = ovl_override_creds(dentry->d_sb);
+ res = __vfs_getxattr(realdentry, d_inode(realdentry), name, value,
+ size);
+ ovl_revert_creds(old_cred);
+ return res;
+}
+
int ovl_xattr_get(struct dentry *dentry, struct inode *inode, const char *name,
void *value, size_t size)
{
@@ -383,7 +398,7 @@ int ovl_xattr_get(struct dentry *dentry, struct inode *inode, const char *name,
old_cred = ovl_override_creds(dentry->d_sb);
res = vfs_getxattr(realdentry, name, value, size);
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
return res;
}
@@ -408,7 +423,7 @@ ssize_t ovl_listxattr(struct dentry *dentry, char *list, size_t size)
old_cred = ovl_override_creds(dentry->d_sb);
res = vfs_listxattr(realdentry, list, size);
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
if (res <= 0 || size == 0)
return res;
@@ -443,7 +458,7 @@ struct posix_acl *ovl_get_acl(struct inode *inode, int type)
old_cred = ovl_override_creds(inode->i_sb);
acl = get_acl(realinode, type);
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
return acl;
}
@@ -481,7 +496,7 @@ static int ovl_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
filemap_write_and_wait(realinode->i_mapping);
err = realinode->i_op->fiemap(realinode, fieinfo, start, len);
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
return err;
}
diff --git a/fs/overlayfs/namei.c b/fs/overlayfs/namei.c
index badf039..499cd1f 100644
--- a/fs/overlayfs/namei.c
+++ b/fs/overlayfs/namei.c
@@ -109,10 +109,11 @@ int ovl_check_fh_len(struct ovl_fh *fh, int fh_len)
static struct ovl_fh *ovl_get_fh(struct dentry *dentry, const char *name)
{
- int res, err;
+ ssize_t res;
+ int err;
struct ovl_fh *fh = NULL;
- res = vfs_getxattr(dentry, name, NULL, 0);
+ res = ovl_vfs_getxattr(dentry, name, NULL, 0);
if (res < 0) {
if (res == -ENODATA || res == -EOPNOTSUPP)
return NULL;
@@ -126,7 +127,7 @@ static struct ovl_fh *ovl_get_fh(struct dentry *dentry, const char *name)
if (!fh)
return ERR_PTR(-ENOMEM);
- res = vfs_getxattr(dentry, name, fh, res);
+ res = ovl_vfs_getxattr(dentry, name, fh, res);
if (res < 0)
goto fail;
@@ -144,10 +145,11 @@ static struct ovl_fh *ovl_get_fh(struct dentry *dentry, const char *name)
return NULL;
fail:
- pr_warn_ratelimited("overlayfs: failed to get origin (%i)\n", res);
+ pr_warn_ratelimited("overlayfs: failed to get origin (%zi)\n", res);
goto out;
invalid:
- pr_warn_ratelimited("overlayfs: invalid origin (%*phN)\n", res, fh);
+ pr_warn_ratelimited("overlayfs: invalid origin (%*phN)\n",
+ (int)res, fh);
goto out;
}
@@ -1077,7 +1079,7 @@ struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry,
goto out_free_oe;
}
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
if (origin_path) {
dput(origin_path->dentry);
kfree(origin_path);
@@ -1104,7 +1106,7 @@ struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry,
kfree(upperredirect);
out:
kfree(d.redirect);
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
return ERR_PTR(err);
}
@@ -1158,7 +1160,7 @@ bool ovl_lower_positive(struct dentry *dentry)
dput(this);
}
}
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
return positive;
}
diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h
index 265bf9c..3227f21 100644
--- a/fs/overlayfs/overlayfs.h
+++ b/fs/overlayfs/overlayfs.h
@@ -208,6 +208,9 @@ int ovl_want_write(struct dentry *dentry);
void ovl_drop_write(struct dentry *dentry);
struct dentry *ovl_workdir(struct dentry *dentry);
const struct cred *ovl_override_creds(struct super_block *sb);
+void ovl_revert_creds(const struct cred *oldcred);
+ssize_t ovl_vfs_getxattr(struct dentry *dentry, const char *name, void *buf,
+ size_t size);
struct super_block *ovl_same_sb(struct super_block *sb);
int ovl_can_decode_fh(struct super_block *sb);
struct dentry *ovl_indexdir(struct super_block *sb);
@@ -350,6 +353,8 @@ int ovl_xattr_set(struct dentry *dentry, struct inode *inode, const char *name,
const void *value, size_t size, int flags);
int ovl_xattr_get(struct dentry *dentry, struct inode *inode, const char *name,
void *value, size_t size);
+int __ovl_xattr_get(struct dentry *dentry, struct inode *inode,
+ const char *name, void *value, size_t size);
ssize_t ovl_listxattr(struct dentry *dentry, char *list, size_t size);
struct posix_acl *ovl_get_acl(struct inode *inode, int type);
int ovl_update_time(struct inode *inode, struct timespec64 *ts, int flags);
diff --git a/fs/overlayfs/ovl_entry.h b/fs/overlayfs/ovl_entry.h
index 1a1adc6..dc06228 100644
--- a/fs/overlayfs/ovl_entry.h
+++ b/fs/overlayfs/ovl_entry.h
@@ -20,6 +20,7 @@ struct ovl_config {
bool nfs_export;
int xino;
bool metacopy;
+ bool override_creds;
};
struct ovl_sb {
diff --git a/fs/overlayfs/readdir.c b/fs/overlayfs/readdir.c
index 11b7941..47710c1 100644
--- a/fs/overlayfs/readdir.c
+++ b/fs/overlayfs/readdir.c
@@ -289,7 +289,7 @@ static int ovl_check_whiteouts(struct dentry *dir, struct ovl_readdir_data *rdd)
}
inode_unlock(dir->d_inode);
}
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
return err;
}
@@ -927,7 +927,7 @@ int ovl_check_empty_dir(struct dentry *dentry, struct list_head *list)
old_cred = ovl_override_creds(dentry->d_sb);
err = ovl_dir_read_merged(dentry, list, &root);
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
if (err)
return err;
diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
index c97d8d2..e488f9b 100644
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -56,6 +56,11 @@ module_param_named(xino_auto, ovl_xino_auto_def, bool, 0644);
MODULE_PARM_DESC(ovl_xino_auto_def,
"Auto enable xino feature");
+static bool __read_mostly ovl_override_creds_def = true;
+module_param_named(override_creds, ovl_override_creds_def, bool, 0644);
+MODULE_PARM_DESC(ovl_override_creds_def,
+ "Use mounter's credentials for accesses");
+
static void ovl_entry_stack_free(struct ovl_entry *oe)
{
unsigned int i;
@@ -371,6 +376,9 @@ static int ovl_show_options(struct seq_file *m, struct dentry *dentry)
if (ofs->config.metacopy != ovl_metacopy_def)
seq_printf(m, ",metacopy=%s",
ofs->config.metacopy ? "on" : "off");
+ if (ofs->config.override_creds != ovl_override_creds_def)
+ seq_show_option(m, "override_creds",
+ ofs->config.override_creds ? "on" : "off");
return 0;
}
@@ -410,6 +418,8 @@ enum {
OPT_XINO_AUTO,
OPT_METACOPY_ON,
OPT_METACOPY_OFF,
+ OPT_OVERRIDE_CREDS_ON,
+ OPT_OVERRIDE_CREDS_OFF,
OPT_ERR,
};
@@ -428,6 +438,8 @@ static const match_table_t ovl_tokens = {
{OPT_XINO_AUTO, "xino=auto"},
{OPT_METACOPY_ON, "metacopy=on"},
{OPT_METACOPY_OFF, "metacopy=off"},
+ {OPT_OVERRIDE_CREDS_ON, "override_creds=on"},
+ {OPT_OVERRIDE_CREDS_OFF, "override_creds=off"},
{OPT_ERR, NULL}
};
@@ -486,6 +498,7 @@ static int ovl_parse_opt(char *opt, struct ovl_config *config)
config->redirect_mode = kstrdup(ovl_redirect_mode_def(), GFP_KERNEL);
if (!config->redirect_mode)
return -ENOMEM;
+ config->override_creds = ovl_override_creds_def;
while ((p = ovl_next_opt(&opt)) != NULL) {
int token;
@@ -566,6 +579,14 @@ static int ovl_parse_opt(char *opt, struct ovl_config *config)
config->metacopy = false;
break;
+ case OPT_OVERRIDE_CREDS_ON:
+ config->override_creds = true;
+ break;
+
+ case OPT_OVERRIDE_CREDS_OFF:
+ config->override_creds = false;
+ break;
+
default:
pr_err("overlayfs: unrecognized mount option \"%s\" or missing value\n", p);
return -EINVAL;
@@ -868,6 +889,14 @@ ovl_posix_acl_xattr_get(const struct xattr_handler *handler,
}
static int __maybe_unused
+__ovl_posix_acl_xattr_get(const struct xattr_handler *handler,
+ struct dentry *dentry, struct inode *inode,
+ const char *name, void *buffer, size_t size)
+{
+ return __ovl_xattr_get(dentry, inode, handler->name, buffer, size);
+}
+
+static int __maybe_unused
ovl_posix_acl_xattr_set(const struct xattr_handler *handler,
struct dentry *dentry, struct inode *inode,
const char *name, const void *value,
@@ -947,6 +976,13 @@ static int ovl_other_xattr_get(const struct xattr_handler *handler,
return ovl_xattr_get(dentry, inode, name, buffer, size);
}
+static int __ovl_other_xattr_get(const struct xattr_handler *handler,
+ struct dentry *dentry, struct inode *inode,
+ const char *name, void *buffer, size_t size)
+{
+ return __ovl_xattr_get(dentry, inode, name, buffer, size);
+}
+
static int ovl_other_xattr_set(const struct xattr_handler *handler,
struct dentry *dentry, struct inode *inode,
const char *name, const void *value,
@@ -960,6 +996,7 @@ ovl_posix_acl_access_xattr_handler = {
.name = XATTR_NAME_POSIX_ACL_ACCESS,
.flags = ACL_TYPE_ACCESS,
.get = ovl_posix_acl_xattr_get,
+ .__get = __ovl_posix_acl_xattr_get,
.set = ovl_posix_acl_xattr_set,
};
@@ -968,6 +1005,7 @@ ovl_posix_acl_default_xattr_handler = {
.name = XATTR_NAME_POSIX_ACL_DEFAULT,
.flags = ACL_TYPE_DEFAULT,
.get = ovl_posix_acl_xattr_get,
+ .__get = __ovl_posix_acl_xattr_get,
.set = ovl_posix_acl_xattr_set,
};
@@ -980,6 +1018,7 @@ static const struct xattr_handler ovl_own_xattr_handler = {
static const struct xattr_handler ovl_other_xattr_handler = {
.prefix = "", /* catch all */
.get = ovl_other_xattr_get,
+ .__get = __ovl_other_xattr_get,
.set = ovl_other_xattr_set,
};
@@ -1683,7 +1722,6 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
ovl_dentry_lower(root_dentry), NULL);
sb->s_root = root_dentry;
-
return 0;
out_free_oe:
diff --git a/fs/overlayfs/util.c b/fs/overlayfs/util.c
index db8bdb2..0937b07 100644
--- a/fs/overlayfs/util.c
+++ b/fs/overlayfs/util.c
@@ -40,9 +40,23 @@ const struct cred *ovl_override_creds(struct super_block *sb)
{
struct ovl_fs *ofs = sb->s_fs_info;
+ if (!ofs->config.override_creds)
+ return NULL;
return override_creds(ofs->creator_cred);
}
+void ovl_revert_creds(const struct cred *old_cred)
+{
+ if (old_cred)
+ revert_creds(old_cred);
+}
+
+ssize_t ovl_vfs_getxattr(struct dentry *dentry, const char *name, void *buf,
+ size_t size)
+{
+ return __vfs_getxattr(dentry, d_inode(dentry), name, buf, size);
+}
+
struct super_block *ovl_same_sb(struct super_block *sb)
{
struct ovl_fs *ofs = sb->s_fs_info;
@@ -541,9 +555,9 @@ void ovl_copy_up_end(struct dentry *dentry)
bool ovl_check_origin_xattr(struct dentry *dentry)
{
- int res;
+ ssize_t res;
- res = vfs_getxattr(dentry, OVL_XATTR_ORIGIN, NULL, 0);
+ res = ovl_vfs_getxattr(dentry, OVL_XATTR_ORIGIN, NULL, 0);
/* Zero size value means "copied up but origin unknown" */
if (res >= 0)
@@ -554,13 +568,13 @@ bool ovl_check_origin_xattr(struct dentry *dentry)
bool ovl_check_dir_xattr(struct dentry *dentry, const char *name)
{
- int res;
+ ssize_t res;
char val;
if (!d_is_dir(dentry))
return false;
- res = vfs_getxattr(dentry, name, &val, 1);
+ res = ovl_vfs_getxattr(dentry, name, &val, 1);
if (res == 1 && val == 'y')
return true;
@@ -795,7 +809,7 @@ int ovl_nlink_start(struct dentry *dentry, bool *locked)
* value relative to the upper inode nlink in an upper inode xattr.
*/
err = ovl_set_nlink_upper(dentry);
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
out:
if (err)
@@ -815,7 +829,7 @@ void ovl_nlink_end(struct dentry *dentry, bool locked)
old_cred = ovl_override_creds(dentry->d_sb);
ovl_cleanup_index(dentry);
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
}
mutex_unlock(&OVL_I(d_inode(dentry))->lock);
@@ -844,13 +858,13 @@ int ovl_lock_rename_workdir(struct dentry *workdir, struct dentry *upperdir)
/* err < 0, 0 if no metacopy xattr, 1 if metacopy xattr found */
int ovl_check_metacopy_xattr(struct dentry *dentry)
{
- int res;
+ ssize_t res;
/* Only regular files can have metacopy xattr */
if (!S_ISREG(d_inode(dentry)->i_mode))
return 0;
- res = vfs_getxattr(dentry, OVL_XATTR_METACOPY, NULL, 0);
+ res = ovl_vfs_getxattr(dentry, OVL_XATTR_METACOPY, NULL, 0);
if (res < 0) {
if (res == -ENODATA || res == -EOPNOTSUPP)
return 0;
@@ -859,7 +873,7 @@ int ovl_check_metacopy_xattr(struct dentry *dentry)
return 1;
out:
- pr_warn_ratelimited("overlayfs: failed to get metacopy (%i)\n", res);
+ pr_warn_ratelimited("overlayfs: failed to get metacopy (%zi)\n", res);
return res;
}
@@ -885,7 +899,7 @@ ssize_t ovl_getxattr(struct dentry *dentry, char *name, char **value,
ssize_t res;
char *buf = NULL;
- res = vfs_getxattr(dentry, name, NULL, 0);
+ res = ovl_vfs_getxattr(dentry, name, NULL, 0);
if (res < 0) {
if (res == -ENODATA || res == -EOPNOTSUPP)
return -ENODATA;
@@ -897,7 +911,7 @@ ssize_t ovl_getxattr(struct dentry *dentry, char *name, char **value,
if (!buf)
return -ENOMEM;
- res = vfs_getxattr(dentry, name, buf, res);
+ res = ovl_vfs_getxattr(dentry, name, buf, res);
if (res < 0)
goto fail;
}
diff --git a/fs/pnode.c b/fs/pnode.c
index 7910ae9..1fc2e47 100644
--- a/fs/pnode.c
+++ b/fs/pnode.c
@@ -606,3 +606,19 @@ int propagate_umount(struct list_head *list)
return 0;
}
+
+void propagate_remount(struct mount *mnt)
+{
+ struct mount *parent = mnt->mnt_parent;
+ struct mount *p = mnt, *m;
+ struct super_block *sb = mnt->mnt.mnt_sb;
+
+ if (!sb->s_op->copy_mnt_data)
+ return;
+ for (p = propagation_next(parent, parent); p;
+ p = propagation_next(p, parent)) {
+ m = __lookup_mnt(&p->mnt, mnt->mnt_mountpoint);
+ if (m)
+ sb->s_op->copy_mnt_data(m->mnt.data, mnt->mnt.data);
+ }
+}
diff --git a/fs/pnode.h b/fs/pnode.h
index dc87e65..a9a6576 100644
--- a/fs/pnode.h
+++ b/fs/pnode.h
@@ -44,6 +44,7 @@ int propagate_mnt(struct mount *, struct mountpoint *, struct mount *,
int propagate_umount(struct list_head *);
int propagate_mount_busy(struct mount *, int);
void propagate_mount_unlock(struct mount *);
+void propagate_remount(struct mount *);
void mnt_release_group_id(struct mount *);
int get_dominating_id(struct mount *mnt, const struct path *root);
unsigned int mnt_get_count(struct mount *mnt);
diff --git a/fs/proc/Kconfig b/fs/proc/Kconfig
index 817c02b..cad2c60 100644
--- a/fs/proc/Kconfig
+++ b/fs/proc/Kconfig
@@ -97,3 +97,9 @@
Say Y if you are running any user-space software which takes benefit from
this interface. For example, rkt is such a piece of software.
+
+config PROC_UID
+ bool "Include /proc/uid/ files"
+ depends on PROC_FS && RT_MUTEXES
+ help
+ Provides aggregated per-uid information under /proc/uid.
diff --git a/fs/proc/Makefile b/fs/proc/Makefile
index ead487e..3f849ca 100644
--- a/fs/proc/Makefile
+++ b/fs/proc/Makefile
@@ -27,6 +27,7 @@
proc-y += namespaces.o
proc-y += self.o
proc-y += thread_self.o
+proc-$(CONFIG_PROC_UID) += uid.o
proc-$(CONFIG_PROC_SYSCTL) += proc_sysctl.o
proc-$(CONFIG_NET) += proc_net.o
proc-$(CONFIG_PROC_KCORE) += kcore.o
diff --git a/fs/proc/base.c b/fs/proc/base.c
index e3f10c1..0dd4439 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -94,6 +94,7 @@
#include <linux/sched/stat.h>
#include <linux/flex_array.h>
#include <linux/posix-timers.h>
+#include <linux/cpufreq_times.h>
#include <trace/events/oom.h>
#include "internal.h"
#include "fd.h"
@@ -3053,6 +3054,9 @@ static const struct pid_entry tgid_base_stuff[] = {
#ifdef CONFIG_LIVEPATCH
ONE("patch_state", S_IRUSR, proc_pid_patch_state),
#endif
+#ifdef CONFIG_CPU_FREQ_TIMES
+ ONE("time_in_state", 0444, proc_time_in_state_show),
+#endif
};
static int proc_tgid_base_readdir(struct file *file, struct dir_context *ctx)
@@ -3067,6 +3071,15 @@ static const struct file_operations proc_tgid_base_operations = {
.llseek = generic_file_llseek,
};
+struct pid *tgid_pidfd_to_pid(const struct file *file)
+{
+ if (!d_is_dir(file->f_path.dentry) ||
+ (file->f_op != &proc_tgid_base_operations))
+ return ERR_PTR(-EBADF);
+
+ return proc_pid(file_inode(file));
+}
+
static struct dentry *proc_tgid_base_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)
{
return proc_pident_lookup(dir, dentry,
@@ -3431,6 +3444,9 @@ static const struct pid_entry tid_base_stuff[] = {
#ifdef CONFIG_LIVEPATCH
ONE("patch_state", S_IRUSR, proc_pid_patch_state),
#endif
+#ifdef CONFIG_CPU_FREQ_TIMES
+ ONE("time_in_state", 0444, proc_time_in_state_show),
+#endif
};
static int proc_tid_base_readdir(struct file *file, struct dir_context *ctx)
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 31bf3bb..702f736 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -491,17 +491,13 @@ struct inode *proc_get_inode(struct super_block *sb, struct proc_dir_entry *de)
return inode;
}
-int proc_fill_super(struct super_block *s, void *data, int silent)
+int proc_fill_super(struct super_block *s)
{
- struct pid_namespace *ns = get_pid_ns(s->s_fs_info);
struct inode *root_inode;
int ret;
- if (!proc_parse_options(data, ns))
- return -EINVAL;
-
/* User space would break if executables or devices appear on proc */
- s->s_iflags |= SB_I_USERNS_VISIBLE | SB_I_NOEXEC | SB_I_NODEV;
+ s->s_iflags |= SB_I_USERNS_VISIBLE | SB_I_NODEV;
s->s_flags |= SB_NODIRATIME | SB_NOSUID | SB_NOEXEC;
s->s_blocksize = 1024;
s->s_blocksize_bits = 10;
diff --git a/fs/proc/internal.h b/fs/proc/internal.h
index 4f14906..e9b244e 100644
--- a/fs/proc/internal.h
+++ b/fs/proc/internal.h
@@ -212,7 +212,7 @@ extern const struct inode_operations proc_pid_link_inode_operations;
void proc_init_kmemcache(void);
void set_proc_pid_nlink(void);
extern struct inode *proc_get_inode(struct super_block *, struct proc_dir_entry *);
-extern int proc_fill_super(struct super_block *, void *data, int flags);
+extern int proc_fill_super(struct super_block *);
extern void proc_entry_rundown(struct proc_dir_entry *);
/*
@@ -258,6 +258,15 @@ static inline void proc_sys_evict_inode(struct inode *inode,
#endif
/*
+ * uid.c
+ */
+#ifdef CONFIG_PROC_UID
+extern int proc_uid_init(void);
+#else
+static inline void proc_uid_init(void) { }
+#endif
+
+/*
* proc_tty.c
*/
#ifdef CONFIG_TTY
@@ -270,7 +279,6 @@ static inline void proc_tty_init(void) {}
* root.c
*/
extern struct proc_dir_entry proc_root;
-extern int proc_parse_options(char *options, struct pid_namespace *pid);
extern void proc_self_init(void);
extern int proc_remount(struct super_block *, int *, char *);
diff --git a/fs/proc/loadavg.c b/fs/proc/loadavg.c
index d066947..8468bae 100644
--- a/fs/proc/loadavg.c
+++ b/fs/proc/loadavg.c
@@ -10,9 +10,6 @@
#include <linux/seqlock.h>
#include <linux/time.h>
-#define LOAD_INT(x) ((x) >> FSHIFT)
-#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)
-
static int loadavg_proc_show(struct seq_file *m, void *v)
{
unsigned long avnrun[3];
diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
index edda898..f2dab6c 100644
--- a/fs/proc/meminfo.c
+++ b/fs/proc/meminfo.c
@@ -38,6 +38,7 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
long cached;
long available;
unsigned long pages[NR_LRU_LISTS];
+ unsigned long sreclaimable, sunreclaim;
int lru;
si_meminfo(&i);
@@ -53,6 +54,8 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
pages[lru] = global_node_page_state(NR_LRU_BASE + lru);
available = si_mem_available();
+ sreclaimable = global_node_page_state(NR_SLAB_RECLAIMABLE);
+ sunreclaim = global_node_page_state(NR_SLAB_UNRECLAIMABLE);
show_val_kb(m, "MemTotal: ", i.totalram);
show_val_kb(m, "MemFree: ", i.freeram);
@@ -94,16 +97,17 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
show_val_kb(m, "Mapped: ",
global_node_page_state(NR_FILE_MAPPED));
show_val_kb(m, "Shmem: ", i.sharedram);
- show_val_kb(m, "Slab: ",
- global_node_page_state(NR_SLAB_RECLAIMABLE) +
- global_node_page_state(NR_SLAB_UNRECLAIMABLE));
-
- show_val_kb(m, "SReclaimable: ",
- global_node_page_state(NR_SLAB_RECLAIMABLE));
- show_val_kb(m, "SUnreclaim: ",
- global_node_page_state(NR_SLAB_UNRECLAIMABLE));
+ show_val_kb(m, "KReclaimable: ", sreclaimable +
+ global_node_page_state(NR_KERNEL_MISC_RECLAIMABLE));
+ show_val_kb(m, "Slab: ", sreclaimable + sunreclaim);
+ show_val_kb(m, "SReclaimable: ", sreclaimable);
+ show_val_kb(m, "SUnreclaim: ", sunreclaim);
seq_printf(m, "KernelStack: %8lu kB\n",
global_zone_page_state(NR_KERNEL_STACK_KB));
+#ifdef CONFIG_SHADOW_CALL_STACK
+ seq_printf(m, "ShadowCallStack:%8lu kB\n",
+ global_zone_page_state(NR_KERNEL_SCS_BYTES) / 1024);
+#endif
show_val_kb(m, "PageTables: ",
global_zone_page_state(NR_PAGETABLE));
#ifdef CONFIG_QUICKLIST
@@ -120,7 +124,7 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
show_val_kb(m, "Committed_AS: ", committed);
seq_printf(m, "VmallocTotal: %8lu kB\n",
(unsigned long)VMALLOC_TOTAL >> 10);
- show_val_kb(m, "VmallocUsed: ", 0ul);
+ show_val_kb(m, "VmallocUsed: ", vmalloc_nr_pages());
show_val_kb(m, "VmallocChunk: ", 0ul);
show_val_kb(m, "Percpu: ", pcpu_nr_pages());
diff --git a/fs/proc/root.c b/fs/proc/root.c
index f4b1a9d..f672dbac 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -26,6 +26,21 @@
#include "internal.h"
+static int proc_test_super(struct super_block *sb, void *data)
+{
+ return sb->s_fs_info == data;
+}
+
+static int proc_set_super(struct super_block *sb, void *data)
+{
+ int err = set_anon_super(sb, NULL);
+ if (!err) {
+ struct pid_namespace *ns = (struct pid_namespace *)data;
+ sb->s_fs_info = get_pid_ns(ns);
+ }
+ return err;
+}
+
enum {
Opt_gid, Opt_hidepid, Opt_err,
};
@@ -36,7 +51,7 @@ static const match_table_t tokens = {
{Opt_err, NULL},
};
-int proc_parse_options(char *options, struct pid_namespace *pid)
+static int proc_parse_options(char *options, struct pid_namespace *pid)
{
char *p;
substring_t args[MAX_OPT_ARGS];
@@ -89,16 +104,45 @@ int proc_remount(struct super_block *sb, int *flags, char *data)
static struct dentry *proc_mount(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data)
{
+ int err;
+ struct super_block *sb;
struct pid_namespace *ns;
+ char *options;
if (flags & SB_KERNMOUNT) {
- ns = data;
- data = NULL;
+ ns = (struct pid_namespace *)data;
+ options = NULL;
} else {
ns = task_active_pid_ns(current);
+ options = data;
+
+ /* Does the mounter have privilege over the pid namespace? */
+ if (!ns_capable(ns->user_ns, CAP_SYS_ADMIN))
+ return ERR_PTR(-EPERM);
}
- return mount_ns(fs_type, flags, data, ns, ns->user_ns, proc_fill_super);
+ sb = sget(fs_type, proc_test_super, proc_set_super, flags, ns);
+ if (IS_ERR(sb))
+ return ERR_CAST(sb);
+
+ if (!proc_parse_options(options, ns)) {
+ deactivate_locked_super(sb);
+ return ERR_PTR(-EINVAL);
+ }
+
+ if (!sb->s_root) {
+ err = proc_fill_super(sb);
+ if (err) {
+ deactivate_locked_super(sb);
+ return ERR_PTR(err);
+ }
+
+ sb->s_flags |= MS_ACTIVE;
+ /* User space would break if executables appear on proc */
+ sb->s_iflags |= SB_I_NOEXEC;
+ }
+
+ return dget(sb->s_root);
}
static void proc_kill_sb(struct super_block *sb)
@@ -130,6 +174,7 @@ void __init proc_root_init(void)
proc_symlink("mounts", NULL, "self/mounts");
proc_net_init();
+ proc_uid_init();
proc_mkdir("fs", NULL);
proc_mkdir("driver", NULL);
proc_create_mount_point("fs/nfsd"); /* somewhere for the nfsd filesystem to be mounted */
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index efa6273..0c31906 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -123,6 +123,56 @@ static void release_task_mempolicy(struct proc_maps_private *priv)
}
#endif
+static void seq_print_vma_name(struct seq_file *m, struct vm_area_struct *vma)
+{
+ const char __user *name = vma_get_anon_name(vma);
+ struct mm_struct *mm = vma->vm_mm;
+
+ unsigned long page_start_vaddr;
+ unsigned long page_offset;
+ unsigned long num_pages;
+ unsigned long max_len = NAME_MAX;
+ int i;
+
+ page_start_vaddr = (unsigned long)name & PAGE_MASK;
+ page_offset = (unsigned long)name - page_start_vaddr;
+ num_pages = DIV_ROUND_UP(page_offset + max_len, PAGE_SIZE);
+
+ seq_puts(m, "[anon:");
+
+ for (i = 0; i < num_pages; i++) {
+ int len;
+ int write_len;
+ const char *kaddr;
+ long pages_pinned;
+ struct page *page;
+
+ pages_pinned = get_user_pages_remote(current, mm,
+ page_start_vaddr, 1, 0, &page, NULL, NULL);
+ if (pages_pinned < 1) {
+ seq_puts(m, "<fault>]");
+ return;
+ }
+
+ kaddr = (const char *)kmap(page);
+ len = min(max_len, PAGE_SIZE - page_offset);
+ write_len = strnlen(kaddr + page_offset, len);
+ seq_write(m, kaddr + page_offset, write_len);
+ kunmap(page);
+ put_page(page);
+
+ /* if strnlen hit a null terminator then we're done */
+ if (write_len != len)
+ break;
+
+ max_len -= len;
+ page_offset = 0;
+ page_start_vaddr += PAGE_SIZE;
+ }
+
+ seq_putc(m, ']');
+}
+
static void vma_stop(struct proc_maps_private *priv)
{
struct mm_struct *mm = priv->mm;
@@ -348,8 +398,15 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma)
goto done;
}
- if (is_stack(vma))
+ if (is_stack(vma)) {
name = "[stack]";
+ goto done;
+ }
+
+ if (vma_get_anon_name(vma)) {
+ seq_pad(m, ' ');
+ seq_print_vma_name(m, vma);
+ }
}
done:
@@ -792,6 +849,11 @@ static int show_smap(struct seq_file *m, void *v)
smap_gather_stats(vma, &mss);
show_map_vma(m, vma);
+ if (vma_get_anon_name(vma)) {
+ seq_puts(m, "Name: ");
+ seq_print_vma_name(m, vma);
+ seq_putc(m, '\n');
+ }
SEQ_PUT_DEC("Size: ", vma->vm_end - vma->vm_start);
SEQ_PUT_DEC(" kB\nKernelPageSize: ", vma_kernel_pagesize(vma));
diff --git a/fs/proc/uid.c b/fs/proc/uid.c
new file mode 100644
index 0000000..311717e
--- /dev/null
+++ b/fs/proc/uid.c
@@ -0,0 +1,304 @@
+/*
+ * /proc/uid support
+ */
+
+#include <linux/cpufreq_times.h>
+#include <linux/fs.h>
+#include <linux/hashtable.h>
+#include <linux/init.h>
+#include <linux/proc_fs.h>
+#include <linux/rtmutex.h>
+#include <linux/sched.h>
+#include <linux/seq_file.h>
+#include <linux/slab.h>
+#include "internal.h"
+
+static struct proc_dir_entry *proc_uid;
+
+#define UID_HASH_BITS 10
+
+static DECLARE_HASHTABLE(proc_uid_hash_table, UID_HASH_BITS);
+
+/*
+ * use rt_mutex here to avoid priority inversion between high-priority readers
+ * of these files and tasks calling proc_register_uid().
+ */
+static DEFINE_RT_MUTEX(proc_uid_lock); /* proc_uid_hash_table */
+
+struct uid_hash_entry {
+ uid_t uid;
+ struct hlist_node hash;
+};
+
+/* Caller must hold proc_uid_lock */
+static bool uid_hash_entry_exists_locked(uid_t uid)
+{
+ struct uid_hash_entry *entry;
+
+ hash_for_each_possible(proc_uid_hash_table, entry, hash, uid) {
+ if (entry->uid == uid)
+ return true;
+ }
+ return false;
+}
+
+void proc_register_uid(kuid_t kuid)
+{
+ struct uid_hash_entry *entry;
+ bool exists;
+ uid_t uid = from_kuid_munged(current_user_ns(), kuid);
+
+ rt_mutex_lock(&proc_uid_lock);
+ exists = uid_hash_entry_exists_locked(uid);
+ rt_mutex_unlock(&proc_uid_lock);
+ if (exists)
+ return;
+
+ entry = kzalloc(sizeof(struct uid_hash_entry), GFP_KERNEL);
+ if (!entry)
+ return;
+ entry->uid = uid;
+
+ rt_mutex_lock(&proc_uid_lock);
+ if (uid_hash_entry_exists_locked(uid))
+ kfree(entry);
+ else
+ hash_add(proc_uid_hash_table, &entry->hash, uid);
+ rt_mutex_unlock(&proc_uid_lock);
+}
+
+struct uid_entry {
+ const char *name;
+ int len;
+ umode_t mode;
+ const struct inode_operations *iop;
+ const struct file_operations *fop;
+};
+
+#define NOD(NAME, MODE, IOP, FOP) { \
+ .name = (NAME), \
+ .len = sizeof(NAME) - 1, \
+ .mode = MODE, \
+ .iop = IOP, \
+ .fop = FOP, \
+}
+
+#ifdef CONFIG_CPU_FREQ_TIMES
+static const struct file_operations proc_uid_time_in_state_operations = {
+ .open = single_uid_time_in_state_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+#endif
+
+static const struct uid_entry uid_base_stuff[] = {
+#ifdef CONFIG_CPU_FREQ_TIMES
+ NOD("time_in_state", 0444, NULL, &proc_uid_time_in_state_operations),
+#endif
+};
+
+static const struct inode_operations proc_uid_def_inode_operations = {
+ .setattr = proc_setattr,
+};
+
+static struct inode *proc_uid_make_inode(struct super_block *sb, kuid_t kuid)
+{
+ struct inode *inode;
+
+ inode = new_inode(sb);
+ if (!inode)
+ return NULL;
+
+ inode->i_ino = get_next_ino();
+ inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
+ inode->i_op = &proc_uid_def_inode_operations;
+ inode->i_uid = kuid;
+
+ return inode;
+}
+
+static struct dentry *proc_uident_instantiate(struct dentry *dentry,
+ struct task_struct *unused, const void *ptr)
+{
+ const struct uid_entry *u = ptr;
+ struct inode *inode;
+
+ uid_t uid = name_to_int(&dentry->d_name);
+ kuid_t kuid;
+ bool uid_exists;
+ rt_mutex_lock(&proc_uid_lock);
+ uid_exists = uid_hash_entry_exists_locked(uid);
+ rt_mutex_unlock(&proc_uid_lock);
+ if (uid_exists) {
+ kuid = make_kuid(current_user_ns(), uid);
+ inode = proc_uid_make_inode(dentry->d_sb, kuid);
+ if (!inode)
+ return ERR_PTR(-ENOENT);
+ } else {
+ return ERR_PTR(-ENOENT);
+ }
+
+ inode->i_mode = u->mode;
+ if (S_ISDIR(inode->i_mode))
+ set_nlink(inode, 2);
+ if (u->iop)
+ inode->i_op = u->iop;
+ if (u->fop)
+ inode->i_fop = u->fop;
+
+ return d_splice_alias(inode, dentry);
+}
+
+static struct dentry *proc_uid_base_lookup(struct inode *dir,
+ struct dentry *dentry,
+ unsigned int flags)
+{
+ const struct uid_entry *u, *last;
+ unsigned int nents = ARRAY_SIZE(uid_base_stuff);
+
+ if (nents == 0)
+ return ERR_PTR(-ENOENT);
+
+ last = &uid_base_stuff[nents - 1];
+ for (u = uid_base_stuff; u <= last; u++) {
+ if (u->len != dentry->d_name.len)
+ continue;
+ if (!memcmp(dentry->d_name.name, u->name, u->len))
+ break;
+ }
+ if (u > last)
+ return ERR_PTR(-ENOENT);
+
+ return proc_uident_instantiate(dentry, NULL, u);
+}
+
+static int proc_uid_base_readdir(struct file *file, struct dir_context *ctx)
+{
+ unsigned int nents = ARRAY_SIZE(uid_base_stuff);
+ const struct uid_entry *u;
+
+ if (!dir_emit_dots(file, ctx))
+ return 0;
+
+ if (ctx->pos >= nents + 2)
+ return 0;
+
+ for (u = uid_base_stuff + (ctx->pos - 2);
+ u < uid_base_stuff + nents; u++) {
+ if (!proc_fill_cache(file, ctx, u->name, u->len,
+ proc_uident_instantiate, NULL, u))
+ break;
+ ctx->pos++;
+ }
+
+ return 0;
+}
+
+static const struct inode_operations proc_uid_base_inode_operations = {
+ .lookup = proc_uid_base_lookup,
+ .setattr = proc_setattr,
+};
+
+static const struct file_operations proc_uid_base_operations = {
+ .read = generic_read_dir,
+ .iterate = proc_uid_base_readdir,
+ .llseek = default_llseek,
+};
+
+static struct dentry *proc_uid_instantiate(struct dentry *dentry,
+ struct task_struct *unused, const void *ptr)
+{
+ unsigned int i, len;
+ nlink_t nlinks;
+ kuid_t *kuid = (kuid_t *)ptr;
+ struct inode *inode = proc_uid_make_inode(dentry->d_sb, *kuid);
+
+ if (!inode)
+ return ERR_PTR(-ENOENT);
+
+ inode->i_mode = S_IFDIR | 0555;
+ inode->i_op = &proc_uid_base_inode_operations;
+ inode->i_fop = &proc_uid_base_operations;
+ inode->i_flags |= S_IMMUTABLE;
+
+ nlinks = 2;
+ len = ARRAY_SIZE(uid_base_stuff);
+ for (i = 0; i < len; ++i) {
+ if (S_ISDIR(uid_base_stuff[i].mode))
+ ++nlinks;
+ }
+ set_nlink(inode, nlinks);
+
+ return d_splice_alias(inode, dentry);
+}
+
+static int proc_uid_readdir(struct file *file, struct dir_context *ctx)
+{
+ int last_shown, i;
+ unsigned long bkt;
+ struct uid_hash_entry *entry;
+
+ if (!dir_emit_dots(file, ctx))
+ return 0;
+
+ i = 0;
+ last_shown = ctx->pos - 2;
+ rt_mutex_lock(&proc_uid_lock);
+ hash_for_each(proc_uid_hash_table, bkt, entry, hash) {
+ int len;
+ char buf[PROC_NUMBUF];
+
+ if (i < last_shown)
+ continue;
+ len = snprintf(buf, sizeof(buf), "%u", entry->uid);
+ if (!proc_fill_cache(file, ctx, buf, len,
+ proc_uid_instantiate, NULL, &entry->uid))
+ break;
+ i++;
+ ctx->pos++;
+ }
+ rt_mutex_unlock(&proc_uid_lock);
+ return 0;
+}
+
+static struct dentry *proc_uid_lookup(struct inode *dir, struct dentry *dentry,
+ unsigned int flags)
+{
+ int result = -ENOENT;
+
+ uid_t uid = name_to_int(&dentry->d_name);
+ bool uid_exists;
+
+ rt_mutex_lock(&proc_uid_lock);
+ uid_exists = uid_hash_entry_exists_locked(uid);
+ rt_mutex_unlock(&proc_uid_lock);
+ if (uid_exists) {
+ kuid_t kuid = make_kuid(current_user_ns(), uid);
+
+ return proc_uid_instantiate(dentry, NULL, &kuid);
+ }
+ return ERR_PTR(result);
+}
+
+static const struct file_operations proc_uid_operations = {
+ .read = generic_read_dir,
+ .iterate = proc_uid_readdir,
+ .llseek = default_llseek,
+};
+
+static const struct inode_operations proc_uid_inode_operations = {
+ .lookup = proc_uid_lookup,
+ .setattr = proc_setattr,
+};
+
+int __init proc_uid_init(void)
+{
+ proc_uid = proc_mkdir("uid", NULL);
+ if (!proc_uid)
+ return -ENOMEM;
+ proc_uid->proc_iops = &proc_uid_inode_operations;
+ proc_uid->proc_fops = &proc_uid_operations;
+
+ return 0;
+}
diff --git a/fs/proc_namespace.c b/fs/proc_namespace.c
index e16fb8f..bd07f0f 100644
--- a/fs/proc_namespace.c
+++ b/fs/proc_namespace.c
@@ -121,7 +121,9 @@ static int show_vfsmnt(struct seq_file *m, struct vfsmount *mnt)
if (err)
goto out;
show_mnt_opts(m, mnt);
- if (sb->s_op->show_options)
+ if (sb->s_op->show_options2)
+ err = sb->s_op->show_options2(mnt, m, mnt_path.dentry);
+ else if (sb->s_op->show_options)
err = sb->s_op->show_options(m, mnt_path.dentry);
seq_puts(m, " 0 0\n");
out:
@@ -183,7 +185,9 @@ static int show_mountinfo(struct seq_file *m, struct vfsmount *mnt)
err = show_sb_opts(m, sb);
if (err)
goto out;
- if (sb->s_op->show_options)
+ if (sb->s_op->show_options2) {
+ err = sb->s_op->show_options2(mnt, m, mnt->mnt_root);
+ } else if (sb->s_op->show_options)
err = sb->s_op->show_options(m, mnt->mnt_root);
seq_putc(m, '\n');
out:
diff --git a/fs/read_write.c b/fs/read_write.c
index 2195380..650fc7e 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -459,6 +459,7 @@ ssize_t vfs_read(struct file *file, char __user *buf, size_t count, loff_t *pos)
return ret;
}
+EXPORT_SYMBOL_GPL(vfs_read);
static ssize_t new_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos)
{
@@ -557,6 +558,7 @@ ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_
return ret;
}
+EXPORT_SYMBOL_GPL(vfs_write);
static inline loff_t file_pos_read(struct file *file)
{
diff --git a/fs/super.c b/fs/super.c
index 9fb4553..e7d3eda 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -32,6 +32,7 @@
#include <linux/backing-dev.h>
#include <linux/rculist_bl.h>
#include <linux/cleancache.h>
+#include <linux/fscrypt.h>
#include <linux/fsnotify.h>
#include <linux/lockdep.h>
#include <linux/user_namespace.h>
@@ -288,6 +289,7 @@ static void __put_super(struct super_block *s)
WARN_ON(s->s_inode_lru.node);
WARN_ON(!list_empty(&s->s_mounts));
security_sb_free(s);
+ fscrypt_sb_free(s);
put_user_ns(s->s_user_ns);
kfree(s->s_subtype);
call_rcu(&s->rcu, destroy_super_rcu);
@@ -834,7 +836,8 @@ struct super_block *user_get_super(dev_t dev)
}
/**
- * do_remount_sb - asks filesystem to change mount options.
+ * do_remount_sb2 - asks filesystem to change mount options.
+ * @mnt: mount we are looking at
* @sb: superblock in question
* @sb_flags: revised superblock flags
* @data: the rest of options
@@ -842,7 +845,7 @@ struct super_block *user_get_super(dev_t dev)
*
* Alters the mount options of a mounted file system.
*/
-int do_remount_sb(struct super_block *sb, int sb_flags, void *data, int force)
+int do_remount_sb2(struct vfsmount *mnt, struct super_block *sb, int sb_flags, void *data, int force)
{
int retval;
int remount_ro;
@@ -884,7 +887,16 @@ int do_remount_sb(struct super_block *sb, int sb_flags, void *data, int force)
}
}
- if (sb->s_op->remount_fs) {
+ if (mnt && sb->s_op->remount_fs2) {
+ retval = sb->s_op->remount_fs2(mnt, sb, &sb_flags, data);
+ if (retval) {
+ if (!force)
+ goto cancel_readonly;
+ /* If forced remount, go ahead despite any errors */
+ WARN(1, "forced remount of a %s fs returned %i\n",
+ sb->s_type->name, retval);
+ }
+ } else if (sb->s_op->remount_fs) {
retval = sb->s_op->remount_fs(sb, &sb_flags, data);
if (retval) {
if (!force)
@@ -916,6 +928,11 @@ int do_remount_sb(struct super_block *sb, int sb_flags, void *data, int force)
return retval;
}
+int do_remount_sb(struct super_block *sb, int flags, void *data, int force)
+{
+ return do_remount_sb2(NULL, sb, flags, data, force);
+}
+
static void do_emergency_remount_callback(struct super_block *sb)
{
down_write(&sb->s_umount);
@@ -1241,7 +1258,7 @@ struct dentry *mount_single(struct file_system_type *fs_type,
EXPORT_SYMBOL(mount_single);
struct dentry *
-mount_fs(struct file_system_type *type, int flags, const char *name, void *data)
+mount_fs(struct file_system_type *type, int flags, const char *name, struct vfsmount *mnt, void *data)
{
struct dentry *root;
struct super_block *sb;
@@ -1258,7 +1275,10 @@ mount_fs(struct file_system_type *type, int flags, const char *name, void *data)
goto out_free_secdata;
}
- root = type->mount(type, flags, name, data);
+ if (type->mount2)
+ root = type->mount2(mnt, type, flags, name, data);
+ else
+ root = type->mount(type, flags, name, data);
if (IS_ERR(root)) {
error = PTR_ERR(root);
goto out_free_secdata;
diff --git a/fs/sync.c b/fs/sync.c
index b54e0541..055daab 100644
--- a/fs/sync.c
+++ b/fs/sync.c
@@ -9,7 +9,7 @@
#include <linux/slab.h>
#include <linux/export.h>
#include <linux/namei.h>
-#include <linux/sched.h>
+#include <linux/sched/xacct.h>
#include <linux/writeback.h>
#include <linux/syscalls.h>
#include <linux/linkage.h>
@@ -220,6 +220,7 @@ static int do_fsync(unsigned int fd, int datasync)
if (f.file) {
ret = vfs_fsync(f.file, datasync);
fdput(f);
+ inc_syscfs(current);
}
return ret;
}
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 5166eb4..57d90b7 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -15,7 +15,9 @@
#include <linux/list.h>
#include <linux/mutex.h>
#include <linux/seq_file.h>
+#ifndef __GENKSYMS__
#include <linux/mm.h>
+#endif
#include "sysfs.h"
#include "../kernfs/kernfs-internal.h"
diff --git a/fs/ubifs/Kconfig b/fs/ubifs/Kconfig
index bbc7854..1b68e40 100644
--- a/fs/ubifs/Kconfig
+++ b/fs/ubifs/Kconfig
@@ -7,6 +7,8 @@
select CRYPTO if UBIFS_FS_ZLIB
select CRYPTO_LZO if UBIFS_FS_LZO
select CRYPTO_DEFLATE if UBIFS_FS_ZLIB
+ select UBIFS_FS_XATTR if FS_ENCRYPTION
+ select FS_ENCRYPTION_ALGS if FS_ENCRYPTION
depends on MTD_UBI
help
UBIFS is a file system for flash devices which works on top of UBI.
@@ -62,17 +64,6 @@
If unsure, say Y.
-config UBIFS_FS_ENCRYPTION
- bool "UBIFS Encryption"
- depends on UBIFS_FS && UBIFS_FS_XATTR && BLOCK
- select FS_ENCRYPTION
- default n
- help
- Enable encryption of UBIFS files and directories. This
- feature is similar to ecryptfs, but it is more memory
- efficient since it avoids caching the encrypted and
- decrypted pages in the page cache.
-
config UBIFS_FS_SECURITY
bool "UBIFS Security Labels"
depends on UBIFS_FS && UBIFS_FS_XATTR
diff --git a/fs/ubifs/Makefile b/fs/ubifs/Makefile
index 6197d7e..079b13f 100644
--- a/fs/ubifs/Makefile
+++ b/fs/ubifs/Makefile
@@ -6,5 +6,5 @@
ubifs-y += budget.o find.o tnc_commit.o compress.o lpt.o lprops.o
ubifs-y += recovery.o ioctl.o lpt_commit.o tnc_misc.o debug.o
ubifs-y += misc.o
-ubifs-$(CONFIG_UBIFS_FS_ENCRYPTION) += crypto.o
+ubifs-$(CONFIG_FS_ENCRYPTION) += crypto.o
ubifs-$(CONFIG_UBIFS_FS_XATTR) += xattr.o
diff --git a/fs/ubifs/crypto.c b/fs/ubifs/crypto.c
index 4aaedf2..22be7ae 100644
--- a/fs/ubifs/crypto.c
+++ b/fs/ubifs/crypto.c
@@ -29,8 +29,8 @@ int ubifs_encrypt(const struct inode *inode, struct ubifs_data_node *dn,
{
struct ubifs_info *c = inode->i_sb->s_fs_info;
void *p = &dn->data;
- struct page *ret;
unsigned int pad_len = round_up(in_len, UBIFS_CIPHER_BLOCK_SIZE);
+ int err;
ubifs_assert(c, pad_len <= *out_len);
dn->compr_size = cpu_to_le16(in_len);
@@ -39,11 +39,11 @@ int ubifs_encrypt(const struct inode *inode, struct ubifs_data_node *dn,
if (pad_len != in_len)
memset(p + in_len, 0, pad_len - in_len);
- ret = fscrypt_encrypt_page(inode, virt_to_page(&dn->data), pad_len,
- offset_in_page(&dn->data), block, GFP_NOFS);
- if (IS_ERR(ret)) {
- ubifs_err(c, "fscrypt_encrypt_page failed: %ld", PTR_ERR(ret));
- return PTR_ERR(ret);
+ err = fscrypt_encrypt_block_inplace(inode, virt_to_page(p), pad_len,
+ offset_in_page(p), block, GFP_NOFS);
+ if (err) {
+ ubifs_err(c, "fscrypt_encrypt_block_inplace() failed: %d", err);
+ return err;
}
*out_len = pad_len;
@@ -64,10 +64,11 @@ int ubifs_decrypt(const struct inode *inode, struct ubifs_data_node *dn,
}
ubifs_assert(c, dlen <= UBIFS_BLOCK_SIZE);
- err = fscrypt_decrypt_page(inode, virt_to_page(&dn->data), dlen,
- offset_in_page(&dn->data), block);
+ err = fscrypt_decrypt_block_inplace(inode, virt_to_page(&dn->data),
+ dlen, offset_in_page(&dn->data),
+ block);
if (err) {
- ubifs_err(c, "fscrypt_decrypt_page failed: %i", err);
+ ubifs_err(c, "fscrypt_decrypt_block_inplace() failed: %d", err);
return err;
}
*out_len = clen;
diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c
index dbdf6a4..afb2915 100644
--- a/fs/ubifs/dir.c
+++ b/fs/ubifs/dir.c
@@ -208,6 +208,7 @@ static int dbg_check_name(const struct ubifs_info *c,
return 0;
}
+static void ubifs_set_d_ops(struct inode *dir, struct dentry *dentry);
static struct dentry *ubifs_lookup(struct inode *dir, struct dentry *dentry,
unsigned int flags)
{
@@ -221,6 +222,7 @@ static struct dentry *ubifs_lookup(struct inode *dir, struct dentry *dentry,
dbg_gen("'%pd' in dir ino %lu", dentry, dir->i_ino);
err = fscrypt_prepare_lookup(dir, dentry, &nm);
+ ubifs_set_d_ops(dir, dentry);
if (err == -ENOENT)
return d_splice_alias(NULL, dentry);
if (err)
@@ -237,9 +239,7 @@ static struct dentry *ubifs_lookup(struct inode *dir, struct dentry *dentry,
goto done;
}
- if (nm.hash) {
- ubifs_assert(c, fname_len(&nm) == 0);
- ubifs_assert(c, fname_name(&nm) == NULL);
+ if (fname_name(&nm) == NULL) {
if (nm.hash & ~UBIFS_S_KEY_HASH_MASK)
goto done; /* ENOENT */
dent_key_init_hash(c, &key, dir->i_ino, nm.hash);
@@ -535,7 +535,7 @@ static int ubifs_readdir(struct file *file, struct dir_context *ctx)
if (encrypted) {
err = fscrypt_get_encryption_info(dir);
- if (err && err != -ENOKEY)
+ if (err)
return err;
err = fscrypt_fname_alloc_buffer(dir, UBIFS_MAX_NLEN, &fstr);
@@ -1686,3 +1686,19 @@ const struct file_operations ubifs_dir_operations = {
.compat_ioctl = ubifs_compat_ioctl,
#endif
};
+
+#ifdef CONFIG_FS_ENCRYPTION
+static const struct dentry_operations ubifs_encrypted_dentry_ops = {
+ .d_revalidate = fscrypt_d_revalidate,
+};
+#endif
+
+static void ubifs_set_d_ops(struct inode *dir, struct dentry *dentry)
+{
+#ifdef CONFIG_FS_ENCRYPTION
+ if (dentry->d_flags & DCACHE_ENCRYPTED_NAME) {
+ d_set_d_op(dentry, &ubifs_encrypted_dentry_ops);
+ return;
+ }
+#endif
+}
diff --git a/fs/ubifs/ioctl.c b/fs/ubifs/ioctl.c
index e666459..daa59b9 100644
--- a/fs/ubifs/ioctl.c
+++ b/fs/ubifs/ioctl.c
@@ -194,7 +194,7 @@ long ubifs_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
return err;
}
case FS_IOC_SET_ENCRYPTION_POLICY: {
-#ifdef CONFIG_UBIFS_FS_ENCRYPTION
+#ifdef CONFIG_FS_ENCRYPTION
struct ubifs_info *c = inode->i_sb->s_fs_info;
err = ubifs_enable_encryption(c);
@@ -207,13 +207,31 @@ long ubifs_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
#endif
}
case FS_IOC_GET_ENCRYPTION_POLICY: {
-#ifdef CONFIG_UBIFS_FS_ENCRYPTION
+#ifdef CONFIG_FS_ENCRYPTION
return fscrypt_ioctl_get_policy(file, (void __user *)arg);
#else
return -EOPNOTSUPP;
#endif
}
+ case FS_IOC_GET_ENCRYPTION_POLICY_EX:
+ return fscrypt_ioctl_get_policy_ex(file, (void __user *)arg);
+
+ case FS_IOC_ADD_ENCRYPTION_KEY:
+ return fscrypt_ioctl_add_key(file, (void __user *)arg);
+
+ case FS_IOC_REMOVE_ENCRYPTION_KEY:
+ return fscrypt_ioctl_remove_key(file, (void __user *)arg);
+
+ case FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS:
+ return fscrypt_ioctl_remove_key_all_users(file,
+ (void __user *)arg);
+ case FS_IOC_GET_ENCRYPTION_KEY_STATUS:
+ return fscrypt_ioctl_get_key_status(file, (void __user *)arg);
+
+ case FS_IOC_GET_ENCRYPTION_NONCE:
+ return fscrypt_ioctl_get_nonce(file, (void __user *)arg);
+
default:
return -ENOTTY;
}
@@ -231,6 +249,12 @@ long ubifs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
break;
case FS_IOC_SET_ENCRYPTION_POLICY:
case FS_IOC_GET_ENCRYPTION_POLICY:
+ case FS_IOC_GET_ENCRYPTION_POLICY_EX:
+ case FS_IOC_ADD_ENCRYPTION_KEY:
+ case FS_IOC_REMOVE_ENCRYPTION_KEY:
+ case FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS:
+ case FS_IOC_GET_ENCRYPTION_KEY_STATUS:
+ case FS_IOC_GET_ENCRYPTION_NONCE:
break;
default:
return -ENOIOCTLCMD;
diff --git a/fs/ubifs/journal.c b/fs/ubifs/journal.c
index 802565a..81e53978 100644
--- a/fs/ubifs/journal.c
+++ b/fs/ubifs/journal.c
@@ -583,7 +583,7 @@ int ubifs_jnl_update(struct ubifs_info *c, const struct inode *dir,
if (!xent) {
dent->ch.node_type = UBIFS_DENT_NODE;
- if (nm->hash)
+ if (fname_name(nm) == NULL)
dent_key_init_hash(c, &dent_key, dir->i_ino, nm->hash);
else
dent_key_init(c, &dent_key, dir->i_ino, nm);
@@ -630,7 +630,7 @@ int ubifs_jnl_update(struct ubifs_info *c, const struct inode *dir,
kfree(dent);
if (deletion) {
- if (nm->hash)
+ if (fname_name(nm) == NULL)
err = ubifs_tnc_remove_dh(c, &dent_key, nm->minor_hash);
else
err = ubifs_tnc_remove_nm(c, &dent_key, nm);
diff --git a/fs/ubifs/key.h b/fs/ubifs/key.h
index 2feff6c..fa6f290 100644
--- a/fs/ubifs/key.h
+++ b/fs/ubifs/key.h
@@ -162,7 +162,6 @@ static inline void dent_key_init(const struct ubifs_info *c,
uint32_t hash = c->key_hash(fname_name(nm), fname_len(nm));
ubifs_assert(c, !(hash & ~UBIFS_S_KEY_HASH_MASK));
- ubifs_assert(c, !nm->hash && !nm->minor_hash);
key->u32[0] = inum;
key->u32[1] = hash | (UBIFS_DENT_KEY << UBIFS_S_KEY_HASH_BITS);
}
diff --git a/fs/ubifs/sb.c b/fs/ubifs/sb.c
index 11dc397..32b495e 100644
--- a/fs/ubifs/sb.c
+++ b/fs/ubifs/sb.c
@@ -658,7 +658,7 @@ int ubifs_read_superblock(struct ubifs_info *c)
goto out;
}
-#ifndef CONFIG_UBIFS_FS_ENCRYPTION
+#ifndef CONFIG_FS_ENCRYPTION
if (c->encrypted) {
ubifs_err(c, "file system contains encrypted files but UBIFS"
" was built without crypto support.");
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index fec62e9..e276b54 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -276,6 +276,8 @@ static void ubifs_i_callback(struct rcu_head *head)
{
struct inode *inode = container_of(head, struct inode, i_rcu);
struct ubifs_inode *ui = ubifs_inode(inode);
+
+ fscrypt_free_inode(inode);
kmem_cache_free(ubifs_inode_slab, ui);
}
@@ -334,6 +336,16 @@ static int ubifs_write_inode(struct inode *inode, struct writeback_control *wbc)
return err;
}
+static int ubifs_drop_inode(struct inode *inode)
+{
+ int drop = generic_drop_inode(inode);
+
+ if (!drop)
+ drop = fscrypt_drop_inode(inode);
+
+ return drop;
+}
+
static void ubifs_evict_inode(struct inode *inode)
{
int err;
@@ -1923,6 +1935,7 @@ const struct super_operations ubifs_super_operations = {
.destroy_inode = ubifs_destroy_inode,
.put_super = ubifs_put_super,
.write_inode = ubifs_write_inode,
+ .drop_inode = ubifs_drop_inode,
.evict_inode = ubifs_evict_inode,
.statfs = ubifs_statfs,
.dirty_inode = ubifs_dirty_inode,
@@ -2087,7 +2100,7 @@ static int ubifs_fill_super(struct super_block *sb, void *data, int silent)
#ifdef CONFIG_UBIFS_FS_XATTR
sb->s_xattr = ubifs_xattr_handlers;
#endif
-#ifdef CONFIG_UBIFS_FS_ENCRYPTION
+#ifdef CONFIG_FS_ENCRYPTION
sb->s_cop = &ubifs_crypt_operations;
#endif
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index 4368cde..4d46bb8 100644
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -40,7 +40,6 @@
#include <linux/xattr.h>
#include <linux/random.h>
-#define __FS_HAS_ENCRYPTION IS_ENABLED(CONFIG_UBIFS_FS_ENCRYPTION)
#include <linux/fscrypt.h>
#include "ubifs-media.h"
@@ -139,7 +138,7 @@
*/
#define WORST_COMPR_FACTOR 2
-#ifdef CONFIG_UBIFS_FS_ENCRYPTION
+#ifdef CONFIG_FS_ENCRYPTION
#define UBIFS_CIPHER_BLOCK_SIZE FS_CRYPTO_BLOCK_SIZE
#else
#define UBIFS_CIPHER_BLOCK_SIZE 0
@@ -1829,7 +1828,7 @@ int ubifs_decompress(const struct ubifs_info *c, const void *buf, int len,
#include "misc.h"
#include "key.h"
-#ifndef CONFIG_UBIFS_FS_ENCRYPTION
+#ifndef CONFIG_FS_ENCRYPTION
static inline int ubifs_encrypt(const struct inode *inode,
struct ubifs_data_node *dn,
unsigned int in_len, unsigned int *out_len,
diff --git a/fs/unicode/.gitignore b/fs/unicode/.gitignore
new file mode 100644
index 0000000..0381e22
--- /dev/null
+++ b/fs/unicode/.gitignore
@@ -0,0 +1,2 @@
+mkutf8data
+utf8data.h
diff --git a/fs/unicode/Kconfig b/fs/unicode/Kconfig
new file mode 100644
index 0000000..b560a87
--- /dev/null
+++ b/fs/unicode/Kconfig
@@ -0,0 +1,13 @@
+#
+# UTF-8 normalization
+#
+config UNICODE
+ bool "UTF-8 normalization and casefolding support"
+ help
+ Say Y here to enable UTF-8 NFD normalization and NFD+CF casefolding
+ support.
+
+config UNICODE_NORMALIZATION_SELFTEST
+ tristate "Test UTF-8 normalization support"
+ depends on UNICODE
+ default n
diff --git a/fs/unicode/Makefile b/fs/unicode/Makefile
new file mode 100644
index 0000000..d46e9ba
--- /dev/null
+++ b/fs/unicode/Makefile
@@ -0,0 +1,38 @@
+# SPDX-License-Identifier: GPL-2.0
+
+obj-$(CONFIG_UNICODE) += unicode.o
+obj-$(CONFIG_UNICODE_NORMALIZATION_SELFTEST) += utf8-selftest.o
+
+unicode-y := utf8-norm.o utf8-core.o
+
+$(obj)/utf8-norm.o: $(obj)/utf8data.h
+
+# In the normal build, the checked-in utf8data.h is just shipped.
+#
+# To generate utf8data.h from UCD, put *.txt files in this directory
+# and pass REGENERATE_UTF8DATA=1 from the command line.
+ifdef REGENERATE_UTF8DATA
+
+quiet_cmd_utf8data = GEN $@
+ cmd_utf8data = $< \
+ -a $(srctree)/$(src)/DerivedAge.txt \
+ -c $(srctree)/$(src)/DerivedCombiningClass.txt \
+ -p $(srctree)/$(src)/DerivedCoreProperties.txt \
+ -d $(srctree)/$(src)/UnicodeData.txt \
+ -f $(srctree)/$(src)/CaseFolding.txt \
+ -n $(srctree)/$(src)/NormalizationCorrections.txt \
+ -t $(srctree)/$(src)/NormalizationTest.txt \
+ -o $@
+
+$(obj)/utf8data.h: $(obj)/mkutf8data $(filter %.txt, $(cmd_utf8data)) FORCE
+ $(call if_changed,utf8data)
+
+else
+
+$(obj)/utf8data.h: $(src)/utf8data.h_shipped FORCE
+ $(call if_changed,shipped)
+
+endif
+
+targets += utf8data.h
+hostprogs-y += mkutf8data
diff --git a/fs/unicode/README.utf8data b/fs/unicode/README.utf8data
new file mode 100644
index 0000000..c737868
--- /dev/null
+++ b/fs/unicode/README.utf8data
@@ -0,0 +1,57 @@
+The utf8data.h file in this directory is generated from the Unicode
+Character Database for version 12.1.0 of the Unicode standard.
+
+The full set of files can be found here:
+
+ http://www.unicode.org/Public/12.1.0/ucd/
+
+Individual source links:
+
+ https://www.unicode.org/Public/12.1.0/ucd/CaseFolding.txt
+ https://www.unicode.org/Public/12.1.0/ucd/DerivedAge.txt
+ https://www.unicode.org/Public/12.1.0/ucd/extracted/DerivedCombiningClass.txt
+ https://www.unicode.org/Public/12.1.0/ucd/DerivedCoreProperties.txt
+ https://www.unicode.org/Public/12.1.0/ucd/NormalizationCorrections.txt
+ https://www.unicode.org/Public/12.1.0/ucd/NormalizationTest.txt
+ https://www.unicode.org/Public/12.1.0/ucd/UnicodeData.txt
+
+md5sums (verify by running "md5sum -c README.utf8data"):
+
+ 900e76da1d822a160fd6b8c0b1d70094 CaseFolding.txt
+ 131256380bff4fea8ad4a851616f2f10 DerivedAge.txt
+ e731a4089b30002144e107e3d6f8d1fa DerivedCombiningClass.txt
+ a47c9fbd7ff92a9b261ba9831e68778a DerivedCoreProperties.txt
+ fcab6dad15e440879d92f315978f93d3 NormalizationCorrections.txt
+ f9ff1c55a60decf436100f791b44aa98 NormalizationTest.txt
+ 755f6af699f8c8d2d958da411f78f6c6 UnicodeData.txt
+
+sha1sums (verify by running "sha1sum -c README.utf8data"):
+
+ dc9245f6803c4ac99555c361f5052e0b13eb779b CaseFolding.txt
+ 3281104f237184cdb5d869e86eb8573678ada7da DerivedAge.txt
+ 2f5f995ccb96e0fa84b15151b35d5e2681535175 DerivedCombiningClass.txt
+ 5b8698a3fcd5018e1987f296b02e2c17e696415e DerivedCoreProperties.txt
+ cd83935fbc012345d8792d2c704f69497e753835 NormalizationCorrections.txt
+ ea419aae505b337b0d99a83fa83fe58ddff7c19f NormalizationTest.txt
+ dc973c0fc93d6f09d9ab9f70d1c9f89c447f0526 UnicodeData.txt
+
+
+To update to the newer version of the Unicode standard, the latest
+released version of the UCD can be found here:
+
+ http://www.unicode.org/Public/UCD/latest/
+
+Then, build under fs/unicode/ with REGENERATE_UTF8DATA=1:
+
+ make REGENERATE_UTF8DATA=1 fs/unicode/
+
+After sanity checking the newly generated utf8data.h file (the
+version generated from the 12.1.0 UCD should be 4,109 lines long, and
+have a total size of 324k) and/or comparing it with the older version
+of utf8data.h_shipped, rename it to utf8data.h_shipped.
+
+If you are a kernel developer updating to a newer version of the
+Unicode Character Database, please update this README.utf8data file
+with the version of the UCD that was used, the md5sum and sha1sums of
+the *.txt files, before checking in the new versions of the utf8data.h
+and README.utf8data files.
diff --git a/fs/unicode/mkutf8data.c b/fs/unicode/mkutf8data.c
new file mode 100644
index 0000000..ff2025ac
--- /dev/null
+++ b/fs/unicode/mkutf8data.c
@@ -0,0 +1,3419 @@
+/*
+ * Copyright (c) 2014 SGI.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* Generator for a compact trie for unicode normalization */
+
+#include <sys/types.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <assert.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+
+/* Default names of the in- and output files. */
+
+#define AGE_NAME "DerivedAge.txt"
+#define CCC_NAME "DerivedCombiningClass.txt"
+#define PROP_NAME "DerivedCoreProperties.txt"
+#define DATA_NAME "UnicodeData.txt"
+#define FOLD_NAME "CaseFolding.txt"
+#define NORM_NAME "NormalizationCorrections.txt"
+#define TEST_NAME "NormalizationTest.txt"
+#define UTF8_NAME "utf8data.h"
+
+const char *age_name = AGE_NAME;
+const char *ccc_name = CCC_NAME;
+const char *prop_name = PROP_NAME;
+const char *data_name = DATA_NAME;
+const char *fold_name = FOLD_NAME;
+const char *norm_name = NORM_NAME;
+const char *test_name = TEST_NAME;
+const char *utf8_name = UTF8_NAME;
+
+int verbose = 0;
+
+/* An arbitrary line size limit on input lines. */
+
+#define LINESIZE 1024
+char line[LINESIZE];
+char buf0[LINESIZE];
+char buf1[LINESIZE];
+char buf2[LINESIZE];
+char buf3[LINESIZE];
+
+const char *argv0;
+
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+
+/* ------------------------------------------------------------------ */
+
+/*
+ * Unicode version numbers consist of three parts: major, minor, and a
+ * revision. These numbers are packed into an unsigned int to obtain
+ * a single version number.
+ *
+ * To save space in the generated trie, the unicode version is not
+ * stored directly, instead we calculate a generation number from the
+ * unicode versions seen in the DerivedAge file, and use that as an
+ * index into a table of unicode versions.
+ */
+#define UNICODE_MAJ_SHIFT (16)
+#define UNICODE_MIN_SHIFT (8)
+
+#define UNICODE_MAJ_MAX ((unsigned short)-1)
+#define UNICODE_MIN_MAX ((unsigned char)-1)
+#define UNICODE_REV_MAX ((unsigned char)-1)
+
+#define UNICODE_AGE(MAJ,MIN,REV) \
+ (((unsigned int)(MAJ) << UNICODE_MAJ_SHIFT) | \
+ ((unsigned int)(MIN) << UNICODE_MIN_SHIFT) | \
+ ((unsigned int)(REV)))
+
+unsigned int *ages;
+int ages_count;
+
+unsigned int unicode_maxage;
+
+static int age_valid(unsigned int major, unsigned int minor,
+ unsigned int revision)
+{
+ if (major > UNICODE_MAJ_MAX)
+ return 0;
+ if (minor > UNICODE_MIN_MAX)
+ return 0;
+ if (revision > UNICODE_REV_MAX)
+ return 0;
+ return 1;
+}
+
+/* ------------------------------------------------------------------ */
+
+/*
+ * utf8trie_t
+ *
+ * A compact binary tree, used to decode UTF-8 characters.
+ *
+ * Internal nodes are one byte for the node itself, and up to three
+ * bytes for an offset into the tree. The first byte contains the
+ * following information:
+ * NEXTBYTE - flag - advance to next byte if set
+ * BITNUM - 3 bit field - the bit number to tested
+ * OFFLEN - 2 bit field - number of bytes in the offset
+ * if offlen == 0 (non-branching node)
+ * RIGHTPATH - 1 bit field - set if the following node is for the
+ * right-hand path (tested bit is set)
+ * TRIENODE - 1 bit field - set if the following node is an internal
+ * node, otherwise it is a leaf node
+ * if offlen != 0 (branching node)
+ * LEFTNODE - 1 bit field - set if the left-hand node is internal
+ * RIGHTNODE - 1 bit field - set if the right-hand node is internal
+ *
+ * Due to the way utf8 works, there cannot be branching nodes with
+ * NEXTBYTE set, and moreover those nodes always have a righthand
+ * descendant.
+ */
+typedef unsigned char utf8trie_t;
+#define BITNUM 0x07
+#define NEXTBYTE 0x08
+#define OFFLEN 0x30
+#define OFFLEN_SHIFT 4
+#define RIGHTPATH 0x40
+#define TRIENODE 0x80
+#define RIGHTNODE 0x40
+#define LEFTNODE 0x80
+
+/*
+ * utf8leaf_t
+ *
+ * The leaves of the trie are embedded in the trie, and so the same
+ * underlying datatype, unsigned char.
+ *
+ * leaf[0]: The unicode version, stored as a generation number that is
+ * an index into utf8agetab[]. With this we can filter code
+ * points based on the unicode version in which they were
+ * defined. The CCC of a non-defined code point is 0.
+ * leaf[1]: Canonical Combining Class. During normalization, we need
+ * to do a stable sort into ascending order of all characters
+ * with a non-zero CCC that occur between two characters with
+ * a CCC of 0, or at the begin or end of a string.
+ * The unicode standard guarantees that all CCC values are
+ * between 0 and 254 inclusive, which leaves 255 available as
+ * a special value.
+ * Code points with CCC 0 are known as stoppers.
+ * leaf[2]: Decomposition. If leaf[1] == 255, then leaf[2] is the
+ * start of a NUL-terminated string that is the decomposition
+ * of the character.
+ * The CCC of a decomposable character is the same as the CCC
+ * of the first character of its decomposition.
+ * Some characters decompose as the empty string: these are
+ * characters with the Default_Ignorable_Code_Point property.
+ * These do affect normalization, as they all have CCC 0.
+ *
+ * The decompositions in the trie have been fully expanded.
+ *
+ * Casefolding, if applicable, is also done using decompositions.
+ */
+typedef unsigned char utf8leaf_t;
+
+#define LEAF_GEN(LEAF) ((LEAF)[0])
+#define LEAF_CCC(LEAF) ((LEAF)[1])
+#define LEAF_STR(LEAF) ((const char*)((LEAF) + 2))
+
+#define MAXGEN (255)
+
+#define MINCCC (0)
+#define MAXCCC (254)
+#define STOPPER (0)
+#define DECOMPOSE (255)
+#define HANGUL ((char)(255))
+
+#define UTF8HANGULLEAF (12)
+
+struct tree;
+static utf8leaf_t *utf8nlookup(struct tree *, unsigned char *,
+ const char *, size_t);
+static utf8leaf_t *utf8lookup(struct tree *, unsigned char *, const char *);
+
+unsigned char *utf8data;
+size_t utf8data_size;
+
+utf8trie_t *nfdi;
+utf8trie_t *nfdicf;
+
+/* ------------------------------------------------------------------ */
+
+/*
+ * UTF8 valid ranges.
+ *
+ * The UTF-8 encoding spreads the bits of a 32bit word over several
+ * bytes. This table gives the ranges that can be held and how they'd
+ * be represented.
+ *
+ * 0x00000000 0x0000007F: 0xxxxxxx
+ * 0x00000000 0x000007FF: 110xxxxx 10xxxxxx
+ * 0x00000000 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx
+ * 0x00000000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
+ * 0x00000000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
+ * 0x00000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
+ *
+ * There is an additional requirement on UTF-8, in that only the
+ * shortest representation of a 32bit value is to be used. A decoder
+ * must not decode sequences that do not satisfy this requirement.
+ * Thus the allowed ranges have a lower bound.
+ *
+ * 0x00000000 0x0000007F: 0xxxxxxx
+ * 0x00000080 0x000007FF: 110xxxxx 10xxxxxx
+ * 0x00000800 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx
+ * 0x00010000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
+ * 0x00200000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
+ * 0x04000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
+ *
+ * Actual unicode characters are limited to the range 0x0 - 0x10FFFF,
+ * 17 planes of 65536 values. This limits the sequences actually seen
+ * even more, to just the following.
+ *
+ * 0 - 0x7f: 0 0x7f
+ * 0x80 - 0x7ff: 0xc2 0x80 0xdf 0xbf
+ * 0x800 - 0xffff: 0xe0 0xa0 0x80 0xef 0xbf 0xbf
+ * 0x10000 - 0x10ffff: 0xf0 0x90 0x80 0x80 0xf4 0x8f 0xbf 0xbf
+ *
+ * Even within those ranges not all values are allowed: the surrogates
+ * 0xd800 - 0xdfff should never be seen.
+ *
+ * Note that the longest sequence seen with valid usage is 4 bytes,
+ * the same a single UTF-32 character. This makes the UTF-8
+ * representation of Unicode strictly smaller than UTF-32.
+ *
+ * The shortest sequence requirement was introduced by:
+ * Corrigendum #1: UTF-8 Shortest Form
+ * It can be found here:
+ * http://www.unicode.org/versions/corrigendum1.html
+ *
+ */
+
+#define UTF8_2_BITS 0xC0
+#define UTF8_3_BITS 0xE0
+#define UTF8_4_BITS 0xF0
+#define UTF8_N_BITS 0x80
+#define UTF8_2_MASK 0xE0
+#define UTF8_3_MASK 0xF0
+#define UTF8_4_MASK 0xF8
+#define UTF8_N_MASK 0xC0
+#define UTF8_V_MASK 0x3F
+#define UTF8_V_SHIFT 6
+
+static int utf8encode(char *str, unsigned int val)
+{
+ int len;
+
+ if (val < 0x80) {
+ str[0] = val;
+ len = 1;
+ } else if (val < 0x800) {
+ str[1] = val & UTF8_V_MASK;
+ str[1] |= UTF8_N_BITS;
+ val >>= UTF8_V_SHIFT;
+ str[0] = val;
+ str[0] |= UTF8_2_BITS;
+ len = 2;
+ } else if (val < 0x10000) {
+ str[2] = val & UTF8_V_MASK;
+ str[2] |= UTF8_N_BITS;
+ val >>= UTF8_V_SHIFT;
+ str[1] = val & UTF8_V_MASK;
+ str[1] |= UTF8_N_BITS;
+ val >>= UTF8_V_SHIFT;
+ str[0] = val;
+ str[0] |= UTF8_3_BITS;
+ len = 3;
+ } else if (val < 0x110000) {
+ str[3] = val & UTF8_V_MASK;
+ str[3] |= UTF8_N_BITS;
+ val >>= UTF8_V_SHIFT;
+ str[2] = val & UTF8_V_MASK;
+ str[2] |= UTF8_N_BITS;
+ val >>= UTF8_V_SHIFT;
+ str[1] = val & UTF8_V_MASK;
+ str[1] |= UTF8_N_BITS;
+ val >>= UTF8_V_SHIFT;
+ str[0] = val;
+ str[0] |= UTF8_4_BITS;
+ len = 4;
+ } else {
+ printf("%#x: illegal val\n", val);
+ len = 0;
+ }
+ return len;
+}
+
+static unsigned int utf8decode(const char *str)
+{
+ const unsigned char *s = (const unsigned char*)str;
+ unsigned int unichar = 0;
+
+ if (*s < 0x80) {
+ unichar = *s;
+ } else if (*s < UTF8_3_BITS) {
+ unichar = *s++ & 0x1F;
+ unichar <<= UTF8_V_SHIFT;
+ unichar |= *s & 0x3F;
+ } else if (*s < UTF8_4_BITS) {
+ unichar = *s++ & 0x0F;
+ unichar <<= UTF8_V_SHIFT;
+ unichar |= *s++ & 0x3F;
+ unichar <<= UTF8_V_SHIFT;
+ unichar |= *s & 0x3F;
+ } else {
+ unichar = *s++ & 0x0F;
+ unichar <<= UTF8_V_SHIFT;
+ unichar |= *s++ & 0x3F;
+ unichar <<= UTF8_V_SHIFT;
+ unichar |= *s++ & 0x3F;
+ unichar <<= UTF8_V_SHIFT;
+ unichar |= *s & 0x3F;
+ }
+ return unichar;
+}
+
+static int utf32valid(unsigned int unichar)
+{
+ return unichar < 0x110000;
+}
+
+#define HANGUL_SYLLABLE(U) ((U) >= 0xAC00 && (U) <= 0xD7A3)
+
+#define NODE 1
+#define LEAF 0
+
+struct tree {
+ void *root;
+ int childnode;
+ const char *type;
+ unsigned int maxage;
+ struct tree *next;
+ int (*leaf_equal)(void *, void *);
+ void (*leaf_print)(void *, int);
+ int (*leaf_mark)(void *);
+ int (*leaf_size)(void *);
+ int *(*leaf_index)(struct tree *, void *);
+ unsigned char *(*leaf_emit)(void *, unsigned char *);
+ int leafindex[0x110000];
+ int index;
+};
+
+struct node {
+ int index;
+ int offset;
+ int mark;
+ int size;
+ struct node *parent;
+ void *left;
+ void *right;
+ unsigned char bitnum;
+ unsigned char nextbyte;
+ unsigned char leftnode;
+ unsigned char rightnode;
+ unsigned int keybits;
+ unsigned int keymask;
+};
+
+/*
+ * Example lookup function for a tree.
+ */
+static void *lookup(struct tree *tree, const char *key)
+{
+ struct node *node;
+ void *leaf = NULL;
+
+ node = tree->root;
+ while (!leaf && node) {
+ if (node->nextbyte)
+ key++;
+ if (*key & (1 << (node->bitnum & 7))) {
+ /* Right leg */
+ if (node->rightnode == NODE) {
+ node = node->right;
+ } else if (node->rightnode == LEAF) {
+ leaf = node->right;
+ } else {
+ node = NULL;
+ }
+ } else {
+ /* Left leg */
+ if (node->leftnode == NODE) {
+ node = node->left;
+ } else if (node->leftnode == LEAF) {
+ leaf = node->left;
+ } else {
+ node = NULL;
+ }
+ }
+ }
+
+ return leaf;
+}
+
+/*
+ * A simple non-recursive tree walker: keep track of visits to the
+ * left and right branches in the leftmask and rightmask.
+ */
+static void tree_walk(struct tree *tree)
+{
+ struct node *node;
+ unsigned int leftmask;
+ unsigned int rightmask;
+ unsigned int bitmask;
+ int indent = 1;
+ int nodes, singletons, leaves;
+
+ nodes = singletons = leaves = 0;
+
+ printf("%s_%x root %p\n", tree->type, tree->maxage, tree->root);
+ if (tree->childnode == LEAF) {
+ assert(tree->root);
+ tree->leaf_print(tree->root, indent);
+ leaves = 1;
+ } else {
+ assert(tree->childnode == NODE);
+ node = tree->root;
+ leftmask = rightmask = 0;
+ while (node) {
+ printf("%*snode @ %p bitnum %d nextbyte %d"
+ " left %p right %p mask %x bits %x\n",
+ indent, "", node,
+ node->bitnum, node->nextbyte,
+ node->left, node->right,
+ node->keymask, node->keybits);
+ nodes += 1;
+ if (!(node->left && node->right))
+ singletons += 1;
+
+ while (node) {
+ bitmask = 1 << node->bitnum;
+ if ((leftmask & bitmask) == 0) {
+ leftmask |= bitmask;
+ if (node->leftnode == LEAF) {
+ assert(node->left);
+ tree->leaf_print(node->left,
+ indent+1);
+ leaves += 1;
+ } else if (node->left) {
+ assert(node->leftnode == NODE);
+ indent += 1;
+ node = node->left;
+ break;
+ }
+ }
+ if ((rightmask & bitmask) == 0) {
+ rightmask |= bitmask;
+ if (node->rightnode == LEAF) {
+ assert(node->right);
+ tree->leaf_print(node->right,
+ indent+1);
+ leaves += 1;
+ } else if (node->right) {
+ assert(node->rightnode == NODE);
+ indent += 1;
+ node = node->right;
+ break;
+ }
+ }
+ leftmask &= ~bitmask;
+ rightmask &= ~bitmask;
+ node = node->parent;
+ indent -= 1;
+ }
+ }
+ }
+ printf("nodes %d leaves %d singletons %d\n",
+ nodes, leaves, singletons);
+}
+
+/*
+ * Allocate an initialize a new internal node.
+ */
+static struct node *alloc_node(struct node *parent)
+{
+ struct node *node;
+ int bitnum;
+
+ node = malloc(sizeof(*node));
+ node->left = node->right = NULL;
+ node->parent = parent;
+ node->leftnode = NODE;
+ node->rightnode = NODE;
+ node->keybits = 0;
+ node->keymask = 0;
+ node->mark = 0;
+ node->index = 0;
+ node->offset = -1;
+ node->size = 4;
+
+ if (node->parent) {
+ bitnum = parent->bitnum;
+ if ((bitnum & 7) == 0) {
+ node->bitnum = bitnum + 7 + 8;
+ node->nextbyte = 1;
+ } else {
+ node->bitnum = bitnum - 1;
+ node->nextbyte = 0;
+ }
+ } else {
+ node->bitnum = 7;
+ node->nextbyte = 0;
+ }
+
+ return node;
+}
+
+/*
+ * Insert a new leaf into the tree, and collapse any subtrees that are
+ * fully populated and end in identical leaves. A nextbyte tagged
+ * internal node will not be removed to preserve the tree's integrity.
+ * Note that due to the structure of utf8, no nextbyte tagged node
+ * will be a candidate for removal.
+ */
+static int insert(struct tree *tree, char *key, int keylen, void *leaf)
+{
+ struct node *node;
+ struct node *parent;
+ void **cursor;
+ int keybits;
+
+ assert(keylen >= 1 && keylen <= 4);
+
+ node = NULL;
+ cursor = &tree->root;
+ keybits = 8 * keylen;
+
+ /* Insert, creating path along the way. */
+ while (keybits) {
+ if (!*cursor)
+ *cursor = alloc_node(node);
+ node = *cursor;
+ if (node->nextbyte)
+ key++;
+ if (*key & (1 << (node->bitnum & 7)))
+ cursor = &node->right;
+ else
+ cursor = &node->left;
+ keybits--;
+ }
+ *cursor = leaf;
+
+ /* Merge subtrees if possible. */
+ while (node) {
+ if (*key & (1 << (node->bitnum & 7)))
+ node->rightnode = LEAF;
+ else
+ node->leftnode = LEAF;
+ if (node->nextbyte)
+ break;
+ if (node->leftnode == NODE || node->rightnode == NODE)
+ break;
+ assert(node->left);
+ assert(node->right);
+ /* Compare */
+ if (! tree->leaf_equal(node->left, node->right))
+ break;
+ /* Keep left, drop right leaf. */
+ leaf = node->left;
+ /* Check in parent */
+ parent = node->parent;
+ if (!parent) {
+ /* root of tree! */
+ tree->root = leaf;
+ tree->childnode = LEAF;
+ } else if (parent->left == node) {
+ parent->left = leaf;
+ parent->leftnode = LEAF;
+ if (parent->right) {
+ parent->keymask = 0;
+ parent->keybits = 0;
+ } else {
+ parent->keymask |= (1 << node->bitnum);
+ }
+ } else if (parent->right == node) {
+ parent->right = leaf;
+ parent->rightnode = LEAF;
+ if (parent->left) {
+ parent->keymask = 0;
+ parent->keybits = 0;
+ } else {
+ parent->keymask |= (1 << node->bitnum);
+ parent->keybits |= (1 << node->bitnum);
+ }
+ } else {
+ /* internal tree error */
+ assert(0);
+ }
+ free(node);
+ node = parent;
+ }
+
+ /* Propagate keymasks up along singleton chains. */
+ while (node) {
+ parent = node->parent;
+ if (!parent)
+ break;
+ /* Nix the mask for parents with two children. */
+ if (node->keymask == 0) {
+ parent->keymask = 0;
+ parent->keybits = 0;
+ } else if (parent->left && parent->right) {
+ parent->keymask = 0;
+ parent->keybits = 0;
+ } else {
+ assert((parent->keymask & node->keymask) == 0);
+ parent->keymask |= node->keymask;
+ parent->keymask |= (1 << parent->bitnum);
+ parent->keybits |= node->keybits;
+ if (parent->right)
+ parent->keybits |= (1 << parent->bitnum);
+ }
+ node = parent;
+ }
+
+ return 0;
+}
+
+/*
+ * Prune internal nodes.
+ *
+ * Fully populated subtrees that end at the same leaf have already
+ * been collapsed. There are still internal nodes that have for both
+ * their left and right branches a sequence of singletons that make
+ * identical choices and end in identical leaves. The keymask and
+ * keybits collected in the nodes describe the choices made in these
+ * singleton chains. When they are identical for the left and right
+ * branch of a node, and the two leaves comare identical, the node in
+ * question can be removed.
+ *
+ * Note that nodes with the nextbyte tag set will not be removed by
+ * this to ensure tree integrity. Note as well that the structure of
+ * utf8 ensures that these nodes would not have been candidates for
+ * removal in any case.
+ */
+static void prune(struct tree *tree)
+{
+ struct node *node;
+ struct node *left;
+ struct node *right;
+ struct node *parent;
+ void *leftleaf;
+ void *rightleaf;
+ unsigned int leftmask;
+ unsigned int rightmask;
+ unsigned int bitmask;
+ int count;
+
+ if (verbose > 0)
+ printf("Pruning %s_%x\n", tree->type, tree->maxage);
+
+ count = 0;
+ if (tree->childnode == LEAF)
+ return;
+ if (!tree->root)
+ return;
+
+ leftmask = rightmask = 0;
+ node = tree->root;
+ while (node) {
+ if (node->nextbyte)
+ goto advance;
+ if (node->leftnode == LEAF)
+ goto advance;
+ if (node->rightnode == LEAF)
+ goto advance;
+ if (!node->left)
+ goto advance;
+ if (!node->right)
+ goto advance;
+ left = node->left;
+ right = node->right;
+ if (left->keymask == 0)
+ goto advance;
+ if (right->keymask == 0)
+ goto advance;
+ if (left->keymask != right->keymask)
+ goto advance;
+ if (left->keybits != right->keybits)
+ goto advance;
+ leftleaf = NULL;
+ while (!leftleaf) {
+ assert(left->left || left->right);
+ if (left->leftnode == LEAF)
+ leftleaf = left->left;
+ else if (left->rightnode == LEAF)
+ leftleaf = left->right;
+ else if (left->left)
+ left = left->left;
+ else if (left->right)
+ left = left->right;
+ else
+ assert(0);
+ }
+ rightleaf = NULL;
+ while (!rightleaf) {
+ assert(right->left || right->right);
+ if (right->leftnode == LEAF)
+ rightleaf = right->left;
+ else if (right->rightnode == LEAF)
+ rightleaf = right->right;
+ else if (right->left)
+ right = right->left;
+ else if (right->right)
+ right = right->right;
+ else
+ assert(0);
+ }
+ if (! tree->leaf_equal(leftleaf, rightleaf))
+ goto advance;
+ /*
+ * This node has identical singleton-only subtrees.
+ * Remove it.
+ */
+ parent = node->parent;
+ left = node->left;
+ right = node->right;
+ if (parent->left == node)
+ parent->left = left;
+ else if (parent->right == node)
+ parent->right = left;
+ else
+ assert(0);
+ left->parent = parent;
+ left->keymask |= (1 << node->bitnum);
+ node->left = NULL;
+ while (node) {
+ bitmask = 1 << node->bitnum;
+ leftmask &= ~bitmask;
+ rightmask &= ~bitmask;
+ if (node->leftnode == NODE && node->left) {
+ left = node->left;
+ free(node);
+ count++;
+ node = left;
+ } else if (node->rightnode == NODE && node->right) {
+ right = node->right;
+ free(node);
+ count++;
+ node = right;
+ } else {
+ node = NULL;
+ }
+ }
+ /* Propagate keymasks up along singleton chains. */
+ node = parent;
+ /* Force re-check */
+ bitmask = 1 << node->bitnum;
+ leftmask &= ~bitmask;
+ rightmask &= ~bitmask;
+ for (;;) {
+ if (node->left && node->right)
+ break;
+ if (node->left) {
+ left = node->left;
+ node->keymask |= left->keymask;
+ node->keybits |= left->keybits;
+ }
+ if (node->right) {
+ right = node->right;
+ node->keymask |= right->keymask;
+ node->keybits |= right->keybits;
+ }
+ node->keymask |= (1 << node->bitnum);
+ node = node->parent;
+ /* Force re-check */
+ bitmask = 1 << node->bitnum;
+ leftmask &= ~bitmask;
+ rightmask &= ~bitmask;
+ }
+ advance:
+ bitmask = 1 << node->bitnum;
+ if ((leftmask & bitmask) == 0 &&
+ node->leftnode == NODE &&
+ node->left) {
+ leftmask |= bitmask;
+ node = node->left;
+ } else if ((rightmask & bitmask) == 0 &&
+ node->rightnode == NODE &&
+ node->right) {
+ rightmask |= bitmask;
+ node = node->right;
+ } else {
+ leftmask &= ~bitmask;
+ rightmask &= ~bitmask;
+ node = node->parent;
+ }
+ }
+ if (verbose > 0)
+ printf("Pruned %d nodes\n", count);
+}
+
+/*
+ * Mark the nodes in the tree that lead to leaves that must be
+ * emitted.
+ */
+static void mark_nodes(struct tree *tree)
+{
+ struct node *node;
+ struct node *n;
+ unsigned int leftmask;
+ unsigned int rightmask;
+ unsigned int bitmask;
+ int marked;
+
+ marked = 0;
+ if (verbose > 0)
+ printf("Marking %s_%x\n", tree->type, tree->maxage);
+ if (tree->childnode == LEAF)
+ goto done;
+
+ assert(tree->childnode == NODE);
+ node = tree->root;
+ leftmask = rightmask = 0;
+ while (node) {
+ bitmask = 1 << node->bitnum;
+ if ((leftmask & bitmask) == 0) {
+ leftmask |= bitmask;
+ if (node->leftnode == LEAF) {
+ assert(node->left);
+ if (tree->leaf_mark(node->left)) {
+ n = node;
+ while (n && !n->mark) {
+ marked++;
+ n->mark = 1;
+ n = n->parent;
+ }
+ }
+ } else if (node->left) {
+ assert(node->leftnode == NODE);
+ node = node->left;
+ continue;
+ }
+ }
+ if ((rightmask & bitmask) == 0) {
+ rightmask |= bitmask;
+ if (node->rightnode == LEAF) {
+ assert(node->right);
+ if (tree->leaf_mark(node->right)) {
+ n = node;
+ while (n && !n->mark) {
+ marked++;
+ n->mark = 1;
+ n = n->parent;
+ }
+ }
+ } else if (node->right) {
+ assert(node->rightnode == NODE);
+ node = node->right;
+ continue;
+ }
+ }
+ leftmask &= ~bitmask;
+ rightmask &= ~bitmask;
+ node = node->parent;
+ }
+
+ /* second pass: left siblings and singletons */
+
+ assert(tree->childnode == NODE);
+ node = tree->root;
+ leftmask = rightmask = 0;
+ while (node) {
+ bitmask = 1 << node->bitnum;
+ if ((leftmask & bitmask) == 0) {
+ leftmask |= bitmask;
+ if (node->leftnode == LEAF) {
+ assert(node->left);
+ if (tree->leaf_mark(node->left)) {
+ n = node;
+ while (n && !n->mark) {
+ marked++;
+ n->mark = 1;
+ n = n->parent;
+ }
+ }
+ } else if (node->left) {
+ assert(node->leftnode == NODE);
+ node = node->left;
+ if (!node->mark && node->parent->mark) {
+ marked++;
+ node->mark = 1;
+ }
+ continue;
+ }
+ }
+ if ((rightmask & bitmask) == 0) {
+ rightmask |= bitmask;
+ if (node->rightnode == LEAF) {
+ assert(node->right);
+ if (tree->leaf_mark(node->right)) {
+ n = node;
+ while (n && !n->mark) {
+ marked++;
+ n->mark = 1;
+ n = n->parent;
+ }
+ }
+ } else if (node->right) {
+ assert(node->rightnode == NODE);
+ node = node->right;
+ if (!node->mark && node->parent->mark &&
+ !node->parent->left) {
+ marked++;
+ node->mark = 1;
+ }
+ continue;
+ }
+ }
+ leftmask &= ~bitmask;
+ rightmask &= ~bitmask;
+ node = node->parent;
+ }
+done:
+ if (verbose > 0)
+ printf("Marked %d nodes\n", marked);
+}
+
+/*
+ * Compute the index of each node and leaf, which is the offset in the
+ * emitted trie. These values must be pre-computed because relative
+ * offsets between nodes are used to navigate the tree.
+ */
+static int index_nodes(struct tree *tree, int index)
+{
+ struct node *node;
+ unsigned int leftmask;
+ unsigned int rightmask;
+ unsigned int bitmask;
+ int count;
+ int indent;
+
+ /* Align to a cache line (or half a cache line?). */
+ while (index % 64)
+ index++;
+ tree->index = index;
+ indent = 1;
+ count = 0;
+
+ if (verbose > 0)
+ printf("Indexing %s_%x: %d\n", tree->type, tree->maxage, index);
+ if (tree->childnode == LEAF) {
+ index += tree->leaf_size(tree->root);
+ goto done;
+ }
+
+ assert(tree->childnode == NODE);
+ node = tree->root;
+ leftmask = rightmask = 0;
+ while (node) {
+ if (!node->mark)
+ goto skip;
+ count++;
+ if (node->index != index)
+ node->index = index;
+ index += node->size;
+skip:
+ while (node) {
+ bitmask = 1 << node->bitnum;
+ if (node->mark && (leftmask & bitmask) == 0) {
+ leftmask |= bitmask;
+ if (node->leftnode == LEAF) {
+ assert(node->left);
+ *tree->leaf_index(tree, node->left) =
+ index;
+ index += tree->leaf_size(node->left);
+ count++;
+ } else if (node->left) {
+ assert(node->leftnode == NODE);
+ indent += 1;
+ node = node->left;
+ break;
+ }
+ }
+ if (node->mark && (rightmask & bitmask) == 0) {
+ rightmask |= bitmask;
+ if (node->rightnode == LEAF) {
+ assert(node->right);
+ *tree->leaf_index(tree, node->right) = index;
+ index += tree->leaf_size(node->right);
+ count++;
+ } else if (node->right) {
+ assert(node->rightnode == NODE);
+ indent += 1;
+ node = node->right;
+ break;
+ }
+ }
+ leftmask &= ~bitmask;
+ rightmask &= ~bitmask;
+ node = node->parent;
+ indent -= 1;
+ }
+ }
+done:
+ /* Round up to a multiple of 16 */
+ while (index % 16)
+ index++;
+ if (verbose > 0)
+ printf("Final index %d\n", index);
+ return index;
+}
+
+/*
+ * Mark the nodes in a subtree, helper for size_nodes().
+ */
+static int mark_subtree(struct node *node)
+{
+ int changed;
+
+ if (!node || node->mark)
+ return 0;
+ node->mark = 1;
+ node->index = node->parent->index;
+ changed = 1;
+ if (node->leftnode == NODE)
+ changed += mark_subtree(node->left);
+ if (node->rightnode == NODE)
+ changed += mark_subtree(node->right);
+ return changed;
+}
+
+/*
+ * Compute the size of nodes and leaves. We start by assuming that
+ * each node needs to store a three-byte offset. The indexes of the
+ * nodes are calculated based on that, and then this function is
+ * called to see if the sizes of some nodes can be reduced. This is
+ * repeated until no more changes are seen.
+ */
+static int size_nodes(struct tree *tree)
+{
+ struct tree *next;
+ struct node *node;
+ struct node *right;
+ struct node *n;
+ unsigned int leftmask;
+ unsigned int rightmask;
+ unsigned int bitmask;
+ unsigned int pathbits;
+ unsigned int pathmask;
+ unsigned int nbit;
+ int changed;
+ int offset;
+ int size;
+ int indent;
+
+ indent = 1;
+ changed = 0;
+ size = 0;
+
+ if (verbose > 0)
+ printf("Sizing %s_%x\n", tree->type, tree->maxage);
+ if (tree->childnode == LEAF)
+ goto done;
+
+ assert(tree->childnode == NODE);
+ pathbits = 0;
+ pathmask = 0;
+ node = tree->root;
+ leftmask = rightmask = 0;
+ while (node) {
+ if (!node->mark)
+ goto skip;
+ offset = 0;
+ if (!node->left || !node->right) {
+ size = 1;
+ } else {
+ if (node->rightnode == NODE) {
+ /*
+ * If the right node is not marked,
+ * look for a corresponding node in
+ * the next tree. Such a node need
+ * not exist.
+ */
+ right = node->right;
+ next = tree->next;
+ while (!right->mark) {
+ assert(next);
+ n = next->root;
+ while (n->bitnum != node->bitnum) {
+ nbit = 1 << n->bitnum;
+ if (!(pathmask & nbit))
+ break;
+ if (pathbits & nbit) {
+ if (n->rightnode == LEAF)
+ break;
+ n = n->right;
+ } else {
+ if (n->leftnode == LEAF)
+ break;
+ n = n->left;
+ }
+ }
+ if (n->bitnum != node->bitnum)
+ break;
+ n = n->right;
+ right = n;
+ next = next->next;
+ }
+ /* Make sure the right node is marked. */
+ if (!right->mark)
+ changed += mark_subtree(right);
+ offset = right->index - node->index;
+ } else {
+ offset = *tree->leaf_index(tree, node->right);
+ offset -= node->index;
+ }
+ assert(offset >= 0);
+ assert(offset <= 0xffffff);
+ if (offset <= 0xff) {
+ size = 2;
+ } else if (offset <= 0xffff) {
+ size = 3;
+ } else { /* offset <= 0xffffff */
+ size = 4;
+ }
+ }
+ if (node->size != size || node->offset != offset) {
+ node->size = size;
+ node->offset = offset;
+ changed++;
+ }
+skip:
+ while (node) {
+ bitmask = 1 << node->bitnum;
+ pathmask |= bitmask;
+ if (node->mark && (leftmask & bitmask) == 0) {
+ leftmask |= bitmask;
+ if (node->leftnode == LEAF) {
+ assert(node->left);
+ } else if (node->left) {
+ assert(node->leftnode == NODE);
+ indent += 1;
+ node = node->left;
+ break;
+ }
+ }
+ if (node->mark && (rightmask & bitmask) == 0) {
+ rightmask |= bitmask;
+ pathbits |= bitmask;
+ if (node->rightnode == LEAF) {
+ assert(node->right);
+ } else if (node->right) {
+ assert(node->rightnode == NODE);
+ indent += 1;
+ node = node->right;
+ break;
+ }
+ }
+ leftmask &= ~bitmask;
+ rightmask &= ~bitmask;
+ pathmask &= ~bitmask;
+ pathbits &= ~bitmask;
+ node = node->parent;
+ indent -= 1;
+ }
+ }
+done:
+ if (verbose > 0)
+ printf("Found %d changes\n", changed);
+ return changed;
+}
+
+/*
+ * Emit a trie for the given tree into the data array.
+ */
+static void emit(struct tree *tree, unsigned char *data)
+{
+ struct node *node;
+ unsigned int leftmask;
+ unsigned int rightmask;
+ unsigned int bitmask;
+ int offlen;
+ int offset;
+ int index;
+ int indent;
+ int size;
+ int bytes;
+ int leaves;
+ int nodes[4];
+ unsigned char byte;
+
+ nodes[0] = nodes[1] = nodes[2] = nodes[3] = 0;
+ leaves = 0;
+ bytes = 0;
+ index = tree->index;
+ data += index;
+ indent = 1;
+ if (verbose > 0)
+ printf("Emitting %s_%x\n", tree->type, tree->maxage);
+ if (tree->childnode == LEAF) {
+ assert(tree->root);
+ tree->leaf_emit(tree->root, data);
+ size = tree->leaf_size(tree->root);
+ index += size;
+ leaves++;
+ goto done;
+ }
+
+ assert(tree->childnode == NODE);
+ node = tree->root;
+ leftmask = rightmask = 0;
+ while (node) {
+ if (!node->mark)
+ goto skip;
+ assert(node->offset != -1);
+ assert(node->index == index);
+
+ byte = 0;
+ if (node->nextbyte)
+ byte |= NEXTBYTE;
+ byte |= (node->bitnum & BITNUM);
+ if (node->left && node->right) {
+ if (node->leftnode == NODE)
+ byte |= LEFTNODE;
+ if (node->rightnode == NODE)
+ byte |= RIGHTNODE;
+ if (node->offset <= 0xff)
+ offlen = 1;
+ else if (node->offset <= 0xffff)
+ offlen = 2;
+ else
+ offlen = 3;
+ nodes[offlen]++;
+ offset = node->offset;
+ byte |= offlen << OFFLEN_SHIFT;
+ *data++ = byte;
+ index++;
+ while (offlen--) {
+ *data++ = offset & 0xff;
+ index++;
+ offset >>= 8;
+ }
+ } else if (node->left) {
+ if (node->leftnode == NODE)
+ byte |= TRIENODE;
+ nodes[0]++;
+ *data++ = byte;
+ index++;
+ } else if (node->right) {
+ byte |= RIGHTNODE;
+ if (node->rightnode == NODE)
+ byte |= TRIENODE;
+ nodes[0]++;
+ *data++ = byte;
+ index++;
+ } else {
+ assert(0);
+ }
+skip:
+ while (node) {
+ bitmask = 1 << node->bitnum;
+ if (node->mark && (leftmask & bitmask) == 0) {
+ leftmask |= bitmask;
+ if (node->leftnode == LEAF) {
+ assert(node->left);
+ data = tree->leaf_emit(node->left,
+ data);
+ size = tree->leaf_size(node->left);
+ index += size;
+ bytes += size;
+ leaves++;
+ } else if (node->left) {
+ assert(node->leftnode == NODE);
+ indent += 1;
+ node = node->left;
+ break;
+ }
+ }
+ if (node->mark && (rightmask & bitmask) == 0) {
+ rightmask |= bitmask;
+ if (node->rightnode == LEAF) {
+ assert(node->right);
+ data = tree->leaf_emit(node->right,
+ data);
+ size = tree->leaf_size(node->right);
+ index += size;
+ bytes += size;
+ leaves++;
+ } else if (node->right) {
+ assert(node->rightnode == NODE);
+ indent += 1;
+ node = node->right;
+ break;
+ }
+ }
+ leftmask &= ~bitmask;
+ rightmask &= ~bitmask;
+ node = node->parent;
+ indent -= 1;
+ }
+ }
+done:
+ if (verbose > 0) {
+ printf("Emitted %d (%d) leaves",
+ leaves, bytes);
+ printf(" %d (%d+%d+%d+%d) nodes",
+ nodes[0] + nodes[1] + nodes[2] + nodes[3],
+ nodes[0], nodes[1], nodes[2], nodes[3]);
+ printf(" %d total\n", index - tree->index);
+ }
+}
+
+/* ------------------------------------------------------------------ */
+
+/*
+ * Unicode data.
+ *
+ * We need to keep track of the Canonical Combining Class, the Age,
+ * and decompositions for a code point.
+ *
+ * For the Age, we store the index into the ages table. Effectively
+ * this is a generation number that the table maps to a unicode
+ * version.
+ *
+ * The correction field is used to indicate that this entry is in the
+ * corrections array, which contains decompositions that were
+ * corrected in later revisions. The value of the correction field is
+ * the Unicode version in which the mapping was corrected.
+ */
+struct unicode_data {
+ unsigned int code;
+ int ccc;
+ int gen;
+ int correction;
+ unsigned int *utf32nfdi;
+ unsigned int *utf32nfdicf;
+ char *utf8nfdi;
+ char *utf8nfdicf;
+};
+
+struct unicode_data unicode_data[0x110000];
+struct unicode_data *corrections;
+int corrections_count;
+
+struct tree *nfdi_tree;
+struct tree *nfdicf_tree;
+
+struct tree *trees;
+int trees_count;
+
+/*
+ * Check the corrections array to see if this entry was corrected at
+ * some point.
+ */
+static struct unicode_data *corrections_lookup(struct unicode_data *u)
+{
+ int i;
+
+ for (i = 0; i != corrections_count; i++)
+ if (u->code == corrections[i].code)
+ return &corrections[i];
+ return u;
+}
+
+static int nfdi_equal(void *l, void *r)
+{
+ struct unicode_data *left = l;
+ struct unicode_data *right = r;
+
+ if (left->gen != right->gen)
+ return 0;
+ if (left->ccc != right->ccc)
+ return 0;
+ if (left->utf8nfdi && right->utf8nfdi &&
+ strcmp(left->utf8nfdi, right->utf8nfdi) == 0)
+ return 1;
+ if (left->utf8nfdi || right->utf8nfdi)
+ return 0;
+ return 1;
+}
+
+static int nfdicf_equal(void *l, void *r)
+{
+ struct unicode_data *left = l;
+ struct unicode_data *right = r;
+
+ if (left->gen != right->gen)
+ return 0;
+ if (left->ccc != right->ccc)
+ return 0;
+ if (left->utf8nfdicf && right->utf8nfdicf &&
+ strcmp(left->utf8nfdicf, right->utf8nfdicf) == 0)
+ return 1;
+ if (left->utf8nfdicf && right->utf8nfdicf)
+ return 0;
+ if (left->utf8nfdicf || right->utf8nfdicf)
+ return 0;
+ if (left->utf8nfdi && right->utf8nfdi &&
+ strcmp(left->utf8nfdi, right->utf8nfdi) == 0)
+ return 1;
+ if (left->utf8nfdi || right->utf8nfdi)
+ return 0;
+ return 1;
+}
+
+static void nfdi_print(void *l, int indent)
+{
+ struct unicode_data *leaf = l;
+
+ printf("%*sleaf @ %p code %X ccc %d gen %d", indent, "", leaf,
+ leaf->code, leaf->ccc, leaf->gen);
+
+ if (leaf->utf8nfdi && leaf->utf8nfdi[0] == HANGUL)
+ printf(" nfdi \"%s\"", "HANGUL SYLLABLE");
+ else if (leaf->utf8nfdi)
+ printf(" nfdi \"%s\"", (const char*)leaf->utf8nfdi);
+
+ printf("\n");
+}
+
+static void nfdicf_print(void *l, int indent)
+{
+ struct unicode_data *leaf = l;
+
+ printf("%*sleaf @ %p code %X ccc %d gen %d", indent, "", leaf,
+ leaf->code, leaf->ccc, leaf->gen);
+
+ if (leaf->utf8nfdicf)
+ printf(" nfdicf \"%s\"", (const char*)leaf->utf8nfdicf);
+ else if (leaf->utf8nfdi && leaf->utf8nfdi[0] == HANGUL)
+ printf(" nfdi \"%s\"", "HANGUL SYLLABLE");
+ else if (leaf->utf8nfdi)
+ printf(" nfdi \"%s\"", (const char*)leaf->utf8nfdi);
+ printf("\n");
+}
+
+static int nfdi_mark(void *l)
+{
+ return 1;
+}
+
+static int nfdicf_mark(void *l)
+{
+ struct unicode_data *leaf = l;
+
+ if (leaf->utf8nfdicf)
+ return 1;
+ return 0;
+}
+
+static int correction_mark(void *l)
+{
+ struct unicode_data *leaf = l;
+
+ return leaf->correction;
+}
+
+static int nfdi_size(void *l)
+{
+ struct unicode_data *leaf = l;
+ int size = 2;
+
+ if (HANGUL_SYLLABLE(leaf->code))
+ size += 1;
+ else if (leaf->utf8nfdi)
+ size += strlen(leaf->utf8nfdi) + 1;
+ return size;
+}
+
+static int nfdicf_size(void *l)
+{
+ struct unicode_data *leaf = l;
+ int size = 2;
+
+ if (HANGUL_SYLLABLE(leaf->code))
+ size += 1;
+ else if (leaf->utf8nfdicf)
+ size += strlen(leaf->utf8nfdicf) + 1;
+ else if (leaf->utf8nfdi)
+ size += strlen(leaf->utf8nfdi) + 1;
+ return size;
+}
+
+static int *nfdi_index(struct tree *tree, void *l)
+{
+ struct unicode_data *leaf = l;
+
+ return &tree->leafindex[leaf->code];
+}
+
+static int *nfdicf_index(struct tree *tree, void *l)
+{
+ struct unicode_data *leaf = l;
+
+ return &tree->leafindex[leaf->code];
+}
+
+static unsigned char *nfdi_emit(void *l, unsigned char *data)
+{
+ struct unicode_data *leaf = l;
+ unsigned char *s;
+
+ *data++ = leaf->gen;
+
+ if (HANGUL_SYLLABLE(leaf->code)) {
+ *data++ = DECOMPOSE;
+ *data++ = HANGUL;
+ } else if (leaf->utf8nfdi) {
+ *data++ = DECOMPOSE;
+ s = (unsigned char*)leaf->utf8nfdi;
+ while ((*data++ = *s++) != 0)
+ ;
+ } else {
+ *data++ = leaf->ccc;
+ }
+ return data;
+}
+
+static unsigned char *nfdicf_emit(void *l, unsigned char *data)
+{
+ struct unicode_data *leaf = l;
+ unsigned char *s;
+
+ *data++ = leaf->gen;
+
+ if (HANGUL_SYLLABLE(leaf->code)) {
+ *data++ = DECOMPOSE;
+ *data++ = HANGUL;
+ } else if (leaf->utf8nfdicf) {
+ *data++ = DECOMPOSE;
+ s = (unsigned char*)leaf->utf8nfdicf;
+ while ((*data++ = *s++) != 0)
+ ;
+ } else if (leaf->utf8nfdi) {
+ *data++ = DECOMPOSE;
+ s = (unsigned char*)leaf->utf8nfdi;
+ while ((*data++ = *s++) != 0)
+ ;
+ } else {
+ *data++ = leaf->ccc;
+ }
+ return data;
+}
+
+static void utf8_create(struct unicode_data *data)
+{
+ char utf[18*4+1];
+ char *u;
+ unsigned int *um;
+ int i;
+
+ if (data->utf8nfdi) {
+ assert(data->utf8nfdi[0] == HANGUL);
+ return;
+ }
+
+ u = utf;
+ um = data->utf32nfdi;
+ if (um) {
+ for (i = 0; um[i]; i++)
+ u += utf8encode(u, um[i]);
+ *u = '\0';
+ data->utf8nfdi = strdup(utf);
+ }
+ u = utf;
+ um = data->utf32nfdicf;
+ if (um) {
+ for (i = 0; um[i]; i++)
+ u += utf8encode(u, um[i]);
+ *u = '\0';
+ if (!data->utf8nfdi || strcmp(data->utf8nfdi, utf))
+ data->utf8nfdicf = strdup(utf);
+ }
+}
+
+static void utf8_init(void)
+{
+ unsigned int unichar;
+ int i;
+
+ for (unichar = 0; unichar != 0x110000; unichar++)
+ utf8_create(&unicode_data[unichar]);
+
+ for (i = 0; i != corrections_count; i++)
+ utf8_create(&corrections[i]);
+}
+
+static void trees_init(void)
+{
+ struct unicode_data *data;
+ unsigned int maxage;
+ unsigned int nextage;
+ int count;
+ int i;
+ int j;
+
+ /* Count the number of different ages. */
+ count = 0;
+ nextage = (unsigned int)-1;
+ do {
+ maxage = nextage;
+ nextage = 0;
+ for (i = 0; i <= corrections_count; i++) {
+ data = &corrections[i];
+ if (nextage < data->correction &&
+ data->correction < maxage)
+ nextage = data->correction;
+ }
+ count++;
+ } while (nextage);
+
+ /* Two trees per age: nfdi and nfdicf */
+ trees_count = count * 2;
+ trees = calloc(trees_count, sizeof(struct tree));
+
+ /* Assign ages to the trees. */
+ count = trees_count;
+ nextage = (unsigned int)-1;
+ do {
+ maxage = nextage;
+ trees[--count].maxage = maxage;
+ trees[--count].maxage = maxage;
+ nextage = 0;
+ for (i = 0; i <= corrections_count; i++) {
+ data = &corrections[i];
+ if (nextage < data->correction &&
+ data->correction < maxage)
+ nextage = data->correction;
+ }
+ } while (nextage);
+
+ /* The ages assigned above are off by one. */
+ for (i = 0; i != trees_count; i++) {
+ j = 0;
+ while (ages[j] < trees[i].maxage)
+ j++;
+ trees[i].maxage = ages[j-1];
+ }
+
+ /* Set up the forwarding between trees. */
+ trees[trees_count-2].next = &trees[trees_count-1];
+ trees[trees_count-1].leaf_mark = nfdi_mark;
+ trees[trees_count-2].leaf_mark = nfdicf_mark;
+ for (i = 0; i != trees_count-2; i += 2) {
+ trees[i].next = &trees[trees_count-2];
+ trees[i].leaf_mark = correction_mark;
+ trees[i+1].next = &trees[trees_count-1];
+ trees[i+1].leaf_mark = correction_mark;
+ }
+
+ /* Assign the callouts. */
+ for (i = 0; i != trees_count; i += 2) {
+ trees[i].type = "nfdicf";
+ trees[i].leaf_equal = nfdicf_equal;
+ trees[i].leaf_print = nfdicf_print;
+ trees[i].leaf_size = nfdicf_size;
+ trees[i].leaf_index = nfdicf_index;
+ trees[i].leaf_emit = nfdicf_emit;
+
+ trees[i+1].type = "nfdi";
+ trees[i+1].leaf_equal = nfdi_equal;
+ trees[i+1].leaf_print = nfdi_print;
+ trees[i+1].leaf_size = nfdi_size;
+ trees[i+1].leaf_index = nfdi_index;
+ trees[i+1].leaf_emit = nfdi_emit;
+ }
+
+ /* Finish init. */
+ for (i = 0; i != trees_count; i++)
+ trees[i].childnode = NODE;
+}
+
+static void trees_populate(void)
+{
+ struct unicode_data *data;
+ unsigned int unichar;
+ char keyval[4];
+ int keylen;
+ int i;
+
+ for (i = 0; i != trees_count; i++) {
+ if (verbose > 0) {
+ printf("Populating %s_%x\n",
+ trees[i].type, trees[i].maxage);
+ }
+ for (unichar = 0; unichar != 0x110000; unichar++) {
+ if (unicode_data[unichar].gen < 0)
+ continue;
+ keylen = utf8encode(keyval, unichar);
+ data = corrections_lookup(&unicode_data[unichar]);
+ if (data->correction <= trees[i].maxage)
+ data = &unicode_data[unichar];
+ insert(&trees[i], keyval, keylen, data);
+ }
+ }
+}
+
+static void trees_reduce(void)
+{
+ int i;
+ int size;
+ int changed;
+
+ for (i = 0; i != trees_count; i++)
+ prune(&trees[i]);
+ for (i = 0; i != trees_count; i++)
+ mark_nodes(&trees[i]);
+ do {
+ size = 0;
+ for (i = 0; i != trees_count; i++)
+ size = index_nodes(&trees[i], size);
+ changed = 0;
+ for (i = 0; i != trees_count; i++)
+ changed += size_nodes(&trees[i]);
+ } while (changed);
+
+ utf8data = calloc(size, 1);
+ utf8data_size = size;
+ for (i = 0; i != trees_count; i++)
+ emit(&trees[i], utf8data);
+
+ if (verbose > 0) {
+ for (i = 0; i != trees_count; i++) {
+ printf("%s_%x idx %d\n",
+ trees[i].type, trees[i].maxage, trees[i].index);
+ }
+ }
+
+ nfdi = utf8data + trees[trees_count-1].index;
+ nfdicf = utf8data + trees[trees_count-2].index;
+
+ nfdi_tree = &trees[trees_count-1];
+ nfdicf_tree = &trees[trees_count-2];
+}
+
+static void verify(struct tree *tree)
+{
+ struct unicode_data *data;
+ utf8leaf_t *leaf;
+ unsigned int unichar;
+ char key[4];
+ unsigned char hangul[UTF8HANGULLEAF];
+ int report;
+ int nocf;
+
+ if (verbose > 0)
+ printf("Verifying %s_%x\n", tree->type, tree->maxage);
+ nocf = strcmp(tree->type, "nfdicf");
+
+ for (unichar = 0; unichar != 0x110000; unichar++) {
+ report = 0;
+ data = corrections_lookup(&unicode_data[unichar]);
+ if (data->correction <= tree->maxage)
+ data = &unicode_data[unichar];
+ utf8encode(key,unichar);
+ leaf = utf8lookup(tree, hangul, key);
+
+ if (!leaf) {
+ if (data->gen != -1)
+ report++;
+ if (unichar < 0xd800 || unichar > 0xdfff)
+ report++;
+ } else {
+ if (unichar >= 0xd800 && unichar <= 0xdfff)
+ report++;
+ if (data->gen == -1)
+ report++;
+ if (data->gen != LEAF_GEN(leaf))
+ report++;
+ if (LEAF_CCC(leaf) == DECOMPOSE) {
+ if (HANGUL_SYLLABLE(data->code)) {
+ if (data->utf8nfdi[0] != HANGUL)
+ report++;
+ } else if (nocf) {
+ if (!data->utf8nfdi) {
+ report++;
+ } else if (strcmp(data->utf8nfdi,
+ LEAF_STR(leaf))) {
+ report++;
+ }
+ } else {
+ if (!data->utf8nfdicf &&
+ !data->utf8nfdi) {
+ report++;
+ } else if (data->utf8nfdicf) {
+ if (strcmp(data->utf8nfdicf,
+ LEAF_STR(leaf)))
+ report++;
+ } else if (strcmp(data->utf8nfdi,
+ LEAF_STR(leaf))) {
+ report++;
+ }
+ }
+ } else if (data->ccc != LEAF_CCC(leaf)) {
+ report++;
+ }
+ }
+ if (report) {
+ printf("%X code %X gen %d ccc %d"
+ " nfdi -> \"%s\"",
+ unichar, data->code, data->gen,
+ data->ccc,
+ data->utf8nfdi);
+ if (leaf) {
+ printf(" gen %d ccc %d"
+ " nfdi -> \"%s\"",
+ LEAF_GEN(leaf),
+ LEAF_CCC(leaf),
+ LEAF_CCC(leaf) == DECOMPOSE ?
+ LEAF_STR(leaf) : "");
+ }
+ printf("\n");
+ }
+ }
+}
+
+static void trees_verify(void)
+{
+ int i;
+
+ for (i = 0; i != trees_count; i++)
+ verify(&trees[i]);
+}
+
+/* ------------------------------------------------------------------ */
+
+static void help(void)
+{
+ printf("Usage: %s [options]\n", argv0);
+ printf("\n");
+ printf("This program creates an a data trie used for parsing and\n");
+ printf("normalization of UTF-8 strings. The trie is derived from\n");
+ printf("a set of input files from the Unicode character database\n");
+ printf("found at: http://www.unicode.org/Public/UCD/latest/ucd/\n");
+ printf("\n");
+ printf("The generated tree supports two normalization forms:\n");
+ printf("\n");
+ printf("\tnfdi:\n");
+ printf("\t- Apply unicode normalization form NFD.\n");
+ printf("\t- Remove any Default_Ignorable_Code_Point.\n");
+ printf("\n");
+ printf("\tnfdicf:\n");
+ printf("\t- Apply unicode normalization form NFD.\n");
+ printf("\t- Remove any Default_Ignorable_Code_Point.\n");
+ printf("\t- Apply a full casefold (C + F).\n");
+ printf("\n");
+ printf("These forms were chosen as being most useful when dealing\n");
+ printf("with file names: NFD catches most cases where characters\n");
+ printf("should be considered equivalent. The ignorables are mostly\n");
+ printf("invisible, making names hard to type.\n");
+ printf("\n");
+ printf("The options to specify the files to be used are listed\n");
+ printf("below with their default values, which are the names used\n");
+ printf("by version 11.0.0 of the Unicode Character Database.\n");
+ printf("\n");
+ printf("The input files:\n");
+ printf("\t-a %s\n", AGE_NAME);
+ printf("\t-c %s\n", CCC_NAME);
+ printf("\t-p %s\n", PROP_NAME);
+ printf("\t-d %s\n", DATA_NAME);
+ printf("\t-f %s\n", FOLD_NAME);
+ printf("\t-n %s\n", NORM_NAME);
+ printf("\n");
+ printf("Additionally, the generated tables are tested using:\n");
+ printf("\t-t %s\n", TEST_NAME);
+ printf("\n");
+ printf("Finally, the output file:\n");
+ printf("\t-o %s\n", UTF8_NAME);
+ printf("\n");
+}
+
+static void usage(void)
+{
+ help();
+ exit(1);
+}
+
+static void open_fail(const char *name, int error)
+{
+ printf("Error %d opening %s: %s\n", error, name, strerror(error));
+ exit(1);
+}
+
+static void file_fail(const char *filename)
+{
+ printf("Error parsing %s\n", filename);
+ exit(1);
+}
+
+static void line_fail(const char *filename, const char *line)
+{
+ printf("Error parsing %s:%s\n", filename, line);
+ exit(1);
+}
+
+/* ------------------------------------------------------------------ */
+
+static void print_utf32(unsigned int *utf32str)
+{
+ int i;
+
+ for (i = 0; utf32str[i]; i++)
+ printf(" %X", utf32str[i]);
+}
+
+static void print_utf32nfdi(unsigned int unichar)
+{
+ printf(" %X ->", unichar);
+ print_utf32(unicode_data[unichar].utf32nfdi);
+ printf("\n");
+}
+
+static void print_utf32nfdicf(unsigned int unichar)
+{
+ printf(" %X ->", unichar);
+ print_utf32(unicode_data[unichar].utf32nfdicf);
+ printf("\n");
+}
+
+/* ------------------------------------------------------------------ */
+
+static void age_init(void)
+{
+ FILE *file;
+ unsigned int first;
+ unsigned int last;
+ unsigned int unichar;
+ unsigned int major;
+ unsigned int minor;
+ unsigned int revision;
+ int gen;
+ int count;
+ int ret;
+
+ if (verbose > 0)
+ printf("Parsing %s\n", age_name);
+
+ file = fopen(age_name, "r");
+ if (!file)
+ open_fail(age_name, errno);
+ count = 0;
+
+ gen = 0;
+ while (fgets(line, LINESIZE, file)) {
+ ret = sscanf(line, "# Age=V%d_%d_%d",
+ &major, &minor, &revision);
+ if (ret == 3) {
+ ages_count++;
+ if (verbose > 1)
+ printf(" Age V%d_%d_%d\n",
+ major, minor, revision);
+ if (!age_valid(major, minor, revision))
+ line_fail(age_name, line);
+ continue;
+ }
+ ret = sscanf(line, "# Age=V%d_%d", &major, &minor);
+ if (ret == 2) {
+ ages_count++;
+ if (verbose > 1)
+ printf(" Age V%d_%d\n", major, minor);
+ if (!age_valid(major, minor, 0))
+ line_fail(age_name, line);
+ continue;
+ }
+ }
+
+ /* We must have found something above. */
+ if (verbose > 1)
+ printf("%d age entries\n", ages_count);
+ if (ages_count == 0 || ages_count > MAXGEN)
+ file_fail(age_name);
+
+ /* There is a 0 entry. */
+ ages_count++;
+ ages = calloc(ages_count + 1, sizeof(*ages));
+ /* And a guard entry. */
+ ages[ages_count] = (unsigned int)-1;
+
+ rewind(file);
+ count = 0;
+ gen = 0;
+ while (fgets(line, LINESIZE, file)) {
+ ret = sscanf(line, "# Age=V%d_%d_%d",
+ &major, &minor, &revision);
+ if (ret == 3) {
+ ages[++gen] =
+ UNICODE_AGE(major, minor, revision);
+ if (verbose > 1)
+ printf(" Age V%d_%d_%d = gen %d\n",
+ major, minor, revision, gen);
+ if (!age_valid(major, minor, revision))
+ line_fail(age_name, line);
+ continue;
+ }
+ ret = sscanf(line, "# Age=V%d_%d", &major, &minor);
+ if (ret == 2) {
+ ages[++gen] = UNICODE_AGE(major, minor, 0);
+ if (verbose > 1)
+ printf(" Age V%d_%d = %d\n",
+ major, minor, gen);
+ if (!age_valid(major, minor, 0))
+ line_fail(age_name, line);
+ continue;
+ }
+ ret = sscanf(line, "%X..%X ; %d.%d #",
+ &first, &last, &major, &minor);
+ if (ret == 4) {
+ for (unichar = first; unichar <= last; unichar++)
+ unicode_data[unichar].gen = gen;
+ count += 1 + last - first;
+ if (verbose > 1)
+ printf(" %X..%X gen %d\n", first, last, gen);
+ if (!utf32valid(first) || !utf32valid(last))
+ line_fail(age_name, line);
+ continue;
+ }
+ ret = sscanf(line, "%X ; %d.%d #", &unichar, &major, &minor);
+ if (ret == 3) {
+ unicode_data[unichar].gen = gen;
+ count++;
+ if (verbose > 1)
+ printf(" %X gen %d\n", unichar, gen);
+ if (!utf32valid(unichar))
+ line_fail(age_name, line);
+ continue;
+ }
+ }
+ unicode_maxage = ages[gen];
+ fclose(file);
+
+ /* Nix surrogate block */
+ if (verbose > 1)
+ printf(" Removing surrogate block D800..DFFF\n");
+ for (unichar = 0xd800; unichar <= 0xdfff; unichar++)
+ unicode_data[unichar].gen = -1;
+
+ if (verbose > 0)
+ printf("Found %d entries\n", count);
+ if (count == 0)
+ file_fail(age_name);
+}
+
+static void ccc_init(void)
+{
+ FILE *file;
+ unsigned int first;
+ unsigned int last;
+ unsigned int unichar;
+ unsigned int value;
+ int count;
+ int ret;
+
+ if (verbose > 0)
+ printf("Parsing %s\n", ccc_name);
+
+ file = fopen(ccc_name, "r");
+ if (!file)
+ open_fail(ccc_name, errno);
+
+ count = 0;
+ while (fgets(line, LINESIZE, file)) {
+ ret = sscanf(line, "%X..%X ; %d #", &first, &last, &value);
+ if (ret == 3) {
+ for (unichar = first; unichar <= last; unichar++) {
+ unicode_data[unichar].ccc = value;
+ count++;
+ }
+ if (verbose > 1)
+ printf(" %X..%X ccc %d\n", first, last, value);
+ if (!utf32valid(first) || !utf32valid(last))
+ line_fail(ccc_name, line);
+ continue;
+ }
+ ret = sscanf(line, "%X ; %d #", &unichar, &value);
+ if (ret == 2) {
+ unicode_data[unichar].ccc = value;
+ count++;
+ if (verbose > 1)
+ printf(" %X ccc %d\n", unichar, value);
+ if (!utf32valid(unichar))
+ line_fail(ccc_name, line);
+ continue;
+ }
+ }
+ fclose(file);
+
+ if (verbose > 0)
+ printf("Found %d entries\n", count);
+ if (count == 0)
+ file_fail(ccc_name);
+}
+
+static int ignore_compatibility_form(char *type)
+{
+ int i;
+ char *ignored_types[] = {"font", "noBreak", "initial", "medial",
+ "final", "isolated", "circle", "super",
+ "sub", "vertical", "wide", "narrow",
+ "small", "square", "fraction", "compat"};
+
+ for (i = 0 ; i < ARRAY_SIZE(ignored_types); i++)
+ if (strcmp(type, ignored_types[i]) == 0)
+ return 1;
+ return 0;
+}
+
+static void nfdi_init(void)
+{
+ FILE *file;
+ unsigned int unichar;
+ unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */
+ char *s;
+ char *type;
+ unsigned int *um;
+ int count;
+ int i;
+ int ret;
+
+ if (verbose > 0)
+ printf("Parsing %s\n", data_name);
+ file = fopen(data_name, "r");
+ if (!file)
+ open_fail(data_name, errno);
+
+ count = 0;
+ while (fgets(line, LINESIZE, file)) {
+ ret = sscanf(line, "%X;%*[^;];%*[^;];%*[^;];%*[^;];%[^;];",
+ &unichar, buf0);
+ if (ret != 2)
+ continue;
+ if (!utf32valid(unichar))
+ line_fail(data_name, line);
+
+ s = buf0;
+ /* skip over <tag> */
+ if (*s == '<') {
+ type = ++s;
+ while (*++s != '>');
+ *s++ = '\0';
+ if(ignore_compatibility_form(type))
+ continue;
+ }
+ /* decode the decomposition into UTF-32 */
+ i = 0;
+ while (*s) {
+ mapping[i] = strtoul(s, &s, 16);
+ if (!utf32valid(mapping[i]))
+ line_fail(data_name, line);
+ i++;
+ }
+ mapping[i++] = 0;
+
+ um = malloc(i * sizeof(unsigned int));
+ memcpy(um, mapping, i * sizeof(unsigned int));
+ unicode_data[unichar].utf32nfdi = um;
+
+ if (verbose > 1)
+ print_utf32nfdi(unichar);
+ count++;
+ }
+ fclose(file);
+ if (verbose > 0)
+ printf("Found %d entries\n", count);
+ if (count == 0)
+ file_fail(data_name);
+}
+
+static void nfdicf_init(void)
+{
+ FILE *file;
+ unsigned int unichar;
+ unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */
+ char status;
+ char *s;
+ unsigned int *um;
+ int i;
+ int count;
+ int ret;
+
+ if (verbose > 0)
+ printf("Parsing %s\n", fold_name);
+ file = fopen(fold_name, "r");
+ if (!file)
+ open_fail(fold_name, errno);
+
+ count = 0;
+ while (fgets(line, LINESIZE, file)) {
+ ret = sscanf(line, "%X; %c; %[^;];", &unichar, &status, buf0);
+ if (ret != 3)
+ continue;
+ if (!utf32valid(unichar))
+ line_fail(fold_name, line);
+ /* Use the C+F casefold. */
+ if (status != 'C' && status != 'F')
+ continue;
+ s = buf0;
+ if (*s == '<')
+ while (*s++ != ' ')
+ ;
+ i = 0;
+ while (*s) {
+ mapping[i] = strtoul(s, &s, 16);
+ if (!utf32valid(mapping[i]))
+ line_fail(fold_name, line);
+ i++;
+ }
+ mapping[i++] = 0;
+
+ um = malloc(i * sizeof(unsigned int));
+ memcpy(um, mapping, i * sizeof(unsigned int));
+ unicode_data[unichar].utf32nfdicf = um;
+
+ if (verbose > 1)
+ print_utf32nfdicf(unichar);
+ count++;
+ }
+ fclose(file);
+ if (verbose > 0)
+ printf("Found %d entries\n", count);
+ if (count == 0)
+ file_fail(fold_name);
+}
+
+static void ignore_init(void)
+{
+ FILE *file;
+ unsigned int unichar;
+ unsigned int first;
+ unsigned int last;
+ unsigned int *um;
+ int count;
+ int ret;
+
+ if (verbose > 0)
+ printf("Parsing %s\n", prop_name);
+ file = fopen(prop_name, "r");
+ if (!file)
+ open_fail(prop_name, errno);
+ assert(file);
+ count = 0;
+ while (fgets(line, LINESIZE, file)) {
+ ret = sscanf(line, "%X..%X ; %s # ", &first, &last, buf0);
+ if (ret == 3) {
+ if (strcmp(buf0, "Default_Ignorable_Code_Point"))
+ continue;
+ if (!utf32valid(first) || !utf32valid(last))
+ line_fail(prop_name, line);
+ for (unichar = first; unichar <= last; unichar++) {
+ free(unicode_data[unichar].utf32nfdi);
+ um = malloc(sizeof(unsigned int));
+ *um = 0;
+ unicode_data[unichar].utf32nfdi = um;
+ free(unicode_data[unichar].utf32nfdicf);
+ um = malloc(sizeof(unsigned int));
+ *um = 0;
+ unicode_data[unichar].utf32nfdicf = um;
+ count++;
+ }
+ if (verbose > 1)
+ printf(" %X..%X Default_Ignorable_Code_Point\n",
+ first, last);
+ continue;
+ }
+ ret = sscanf(line, "%X ; %s # ", &unichar, buf0);
+ if (ret == 2) {
+ if (strcmp(buf0, "Default_Ignorable_Code_Point"))
+ continue;
+ if (!utf32valid(unichar))
+ line_fail(prop_name, line);
+ free(unicode_data[unichar].utf32nfdi);
+ um = malloc(sizeof(unsigned int));
+ *um = 0;
+ unicode_data[unichar].utf32nfdi = um;
+ free(unicode_data[unichar].utf32nfdicf);
+ um = malloc(sizeof(unsigned int));
+ *um = 0;
+ unicode_data[unichar].utf32nfdicf = um;
+ if (verbose > 1)
+ printf(" %X Default_Ignorable_Code_Point\n",
+ unichar);
+ count++;
+ continue;
+ }
+ }
+ fclose(file);
+
+ if (verbose > 0)
+ printf("Found %d entries\n", count);
+ if (count == 0)
+ file_fail(prop_name);
+}
+
+static void corrections_init(void)
+{
+ FILE *file;
+ unsigned int unichar;
+ unsigned int major;
+ unsigned int minor;
+ unsigned int revision;
+ unsigned int age;
+ unsigned int *um;
+ unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */
+ char *s;
+ int i;
+ int count;
+ int ret;
+
+ if (verbose > 0)
+ printf("Parsing %s\n", norm_name);
+ file = fopen(norm_name, "r");
+ if (!file)
+ open_fail(norm_name, errno);
+
+ count = 0;
+ while (fgets(line, LINESIZE, file)) {
+ ret = sscanf(line, "%X;%[^;];%[^;];%d.%d.%d #",
+ &unichar, buf0, buf1,
+ &major, &minor, &revision);
+ if (ret != 6)
+ continue;
+ if (!utf32valid(unichar) || !age_valid(major, minor, revision))
+ line_fail(norm_name, line);
+ count++;
+ }
+ corrections = calloc(count, sizeof(struct unicode_data));
+ corrections_count = count;
+ rewind(file);
+
+ count = 0;
+ while (fgets(line, LINESIZE, file)) {
+ ret = sscanf(line, "%X;%[^;];%[^;];%d.%d.%d #",
+ &unichar, buf0, buf1,
+ &major, &minor, &revision);
+ if (ret != 6)
+ continue;
+ if (!utf32valid(unichar) || !age_valid(major, minor, revision))
+ line_fail(norm_name, line);
+ corrections[count] = unicode_data[unichar];
+ assert(corrections[count].code == unichar);
+ age = UNICODE_AGE(major, minor, revision);
+ corrections[count].correction = age;
+
+ i = 0;
+ s = buf0;
+ while (*s) {
+ mapping[i] = strtoul(s, &s, 16);
+ if (!utf32valid(mapping[i]))
+ line_fail(norm_name, line);
+ i++;
+ }
+ mapping[i++] = 0;
+
+ um = malloc(i * sizeof(unsigned int));
+ memcpy(um, mapping, i * sizeof(unsigned int));
+ corrections[count].utf32nfdi = um;
+
+ if (verbose > 1)
+ printf(" %X -> %s -> %s V%d_%d_%d\n",
+ unichar, buf0, buf1, major, minor, revision);
+ count++;
+ }
+ fclose(file);
+
+ if (verbose > 0)
+ printf("Found %d entries\n", count);
+ if (count == 0)
+ file_fail(norm_name);
+}
+
+/* ------------------------------------------------------------------ */
+
+/*
+ * Hangul decomposition (algorithm from Section 3.12 of Unicode 6.3.0)
+ *
+ * AC00;<Hangul Syllable, First>;Lo;0;L;;;;;N;;;;;
+ * D7A3;<Hangul Syllable, Last>;Lo;0;L;;;;;N;;;;;
+ *
+ * SBase = 0xAC00
+ * LBase = 0x1100
+ * VBase = 0x1161
+ * TBase = 0x11A7
+ * LCount = 19
+ * VCount = 21
+ * TCount = 28
+ * NCount = 588 (VCount * TCount)
+ * SCount = 11172 (LCount * NCount)
+ *
+ * Decomposition:
+ * SIndex = s - SBase
+ *
+ * LV (Canonical/Full)
+ * LIndex = SIndex / NCount
+ * VIndex = (Sindex % NCount) / TCount
+ * LPart = LBase + LIndex
+ * VPart = VBase + VIndex
+ *
+ * LVT (Canonical)
+ * LVIndex = (SIndex / TCount) * TCount
+ * TIndex = (Sindex % TCount)
+ * LVPart = SBase + LVIndex
+ * TPart = TBase + TIndex
+ *
+ * LVT (Full)
+ * LIndex = SIndex / NCount
+ * VIndex = (Sindex % NCount) / TCount
+ * TIndex = (Sindex % TCount)
+ * LPart = LBase + LIndex
+ * VPart = VBase + VIndex
+ * if (TIndex == 0) {
+ * d = <LPart, VPart>
+ * } else {
+ * TPart = TBase + TIndex
+ * d = <LPart, VPart, TPart>
+ * }
+ *
+ */
+
+static void hangul_decompose(void)
+{
+ unsigned int sb = 0xAC00;
+ unsigned int lb = 0x1100;
+ unsigned int vb = 0x1161;
+ unsigned int tb = 0x11a7;
+ /* unsigned int lc = 19; */
+ unsigned int vc = 21;
+ unsigned int tc = 28;
+ unsigned int nc = (vc * tc);
+ /* unsigned int sc = (lc * nc); */
+ unsigned int unichar;
+ unsigned int mapping[4];
+ unsigned int *um;
+ int count;
+ int i;
+
+ if (verbose > 0)
+ printf("Decomposing hangul\n");
+ /* Hangul */
+ count = 0;
+ for (unichar = 0xAC00; unichar <= 0xD7A3; unichar++) {
+ unsigned int si = unichar - sb;
+ unsigned int li = si / nc;
+ unsigned int vi = (si % nc) / tc;
+ unsigned int ti = si % tc;
+
+ i = 0;
+ mapping[i++] = lb + li;
+ mapping[i++] = vb + vi;
+ if (ti)
+ mapping[i++] = tb + ti;
+ mapping[i++] = 0;
+
+ assert(!unicode_data[unichar].utf32nfdi);
+ um = malloc(i * sizeof(unsigned int));
+ memcpy(um, mapping, i * sizeof(unsigned int));
+ unicode_data[unichar].utf32nfdi = um;
+
+ assert(!unicode_data[unichar].utf32nfdicf);
+ um = malloc(i * sizeof(unsigned int));
+ memcpy(um, mapping, i * sizeof(unsigned int));
+ unicode_data[unichar].utf32nfdicf = um;
+
+ /*
+ * Add a cookie as a reminder that the hangul syllable
+ * decompositions must not be stored in the generated
+ * trie.
+ */
+ unicode_data[unichar].utf8nfdi = malloc(2);
+ unicode_data[unichar].utf8nfdi[0] = HANGUL;
+ unicode_data[unichar].utf8nfdi[1] = '\0';
+
+ if (verbose > 1)
+ print_utf32nfdi(unichar);
+
+ count++;
+ }
+ if (verbose > 0)
+ printf("Created %d entries\n", count);
+}
+
+static void nfdi_decompose(void)
+{
+ unsigned int unichar;
+ unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */
+ unsigned int *um;
+ unsigned int *dc;
+ int count;
+ int i;
+ int j;
+ int ret;
+
+ if (verbose > 0)
+ printf("Decomposing nfdi\n");
+
+ count = 0;
+ for (unichar = 0; unichar != 0x110000; unichar++) {
+ if (!unicode_data[unichar].utf32nfdi)
+ continue;
+ for (;;) {
+ ret = 1;
+ i = 0;
+ um = unicode_data[unichar].utf32nfdi;
+ while (*um) {
+ dc = unicode_data[*um].utf32nfdi;
+ if (dc) {
+ for (j = 0; dc[j]; j++)
+ mapping[i++] = dc[j];
+ ret = 0;
+ } else {
+ mapping[i++] = *um;
+ }
+ um++;
+ }
+ mapping[i++] = 0;
+ if (ret)
+ break;
+ free(unicode_data[unichar].utf32nfdi);
+ um = malloc(i * sizeof(unsigned int));
+ memcpy(um, mapping, i * sizeof(unsigned int));
+ unicode_data[unichar].utf32nfdi = um;
+ }
+ /* Add this decomposition to nfdicf if there is no entry. */
+ if (!unicode_data[unichar].utf32nfdicf) {
+ um = malloc(i * sizeof(unsigned int));
+ memcpy(um, mapping, i * sizeof(unsigned int));
+ unicode_data[unichar].utf32nfdicf = um;
+ }
+ if (verbose > 1)
+ print_utf32nfdi(unichar);
+ count++;
+ }
+ if (verbose > 0)
+ printf("Processed %d entries\n", count);
+}
+
+static void nfdicf_decompose(void)
+{
+ unsigned int unichar;
+ unsigned int mapping[19]; /* Magic - guaranteed not to be exceeded. */
+ unsigned int *um;
+ unsigned int *dc;
+ int count;
+ int i;
+ int j;
+ int ret;
+
+ if (verbose > 0)
+ printf("Decomposing nfdicf\n");
+ count = 0;
+ for (unichar = 0; unichar != 0x110000; unichar++) {
+ if (!unicode_data[unichar].utf32nfdicf)
+ continue;
+ for (;;) {
+ ret = 1;
+ i = 0;
+ um = unicode_data[unichar].utf32nfdicf;
+ while (*um) {
+ dc = unicode_data[*um].utf32nfdicf;
+ if (dc) {
+ for (j = 0; dc[j]; j++)
+ mapping[i++] = dc[j];
+ ret = 0;
+ } else {
+ mapping[i++] = *um;
+ }
+ um++;
+ }
+ mapping[i++] = 0;
+ if (ret)
+ break;
+ free(unicode_data[unichar].utf32nfdicf);
+ um = malloc(i * sizeof(unsigned int));
+ memcpy(um, mapping, i * sizeof(unsigned int));
+ unicode_data[unichar].utf32nfdicf = um;
+ }
+ if (verbose > 1)
+ print_utf32nfdicf(unichar);
+ count++;
+ }
+ if (verbose > 0)
+ printf("Processed %d entries\n", count);
+}
+
+/* ------------------------------------------------------------------ */
+
+int utf8agemax(struct tree *, const char *);
+int utf8nagemax(struct tree *, const char *, size_t);
+int utf8agemin(struct tree *, const char *);
+int utf8nagemin(struct tree *, const char *, size_t);
+ssize_t utf8len(struct tree *, const char *);
+ssize_t utf8nlen(struct tree *, const char *, size_t);
+struct utf8cursor;
+int utf8cursor(struct utf8cursor *, struct tree *, const char *);
+int utf8ncursor(struct utf8cursor *, struct tree *, const char *, size_t);
+int utf8byte(struct utf8cursor *);
+
+/*
+ * Hangul decomposition (algorithm from Section 3.12 of Unicode 6.3.0)
+ *
+ * AC00;<Hangul Syllable, First>;Lo;0;L;;;;;N;;;;;
+ * D7A3;<Hangul Syllable, Last>;Lo;0;L;;;;;N;;;;;
+ *
+ * SBase = 0xAC00
+ * LBase = 0x1100
+ * VBase = 0x1161
+ * TBase = 0x11A7
+ * LCount = 19
+ * VCount = 21
+ * TCount = 28
+ * NCount = 588 (VCount * TCount)
+ * SCount = 11172 (LCount * NCount)
+ *
+ * Decomposition:
+ * SIndex = s - SBase
+ *
+ * LV (Canonical/Full)
+ * LIndex = SIndex / NCount
+ * VIndex = (Sindex % NCount) / TCount
+ * LPart = LBase + LIndex
+ * VPart = VBase + VIndex
+ *
+ * LVT (Canonical)
+ * LVIndex = (SIndex / TCount) * TCount
+ * TIndex = (Sindex % TCount)
+ * LVPart = SBase + LVIndex
+ * TPart = TBase + TIndex
+ *
+ * LVT (Full)
+ * LIndex = SIndex / NCount
+ * VIndex = (Sindex % NCount) / TCount
+ * TIndex = (Sindex % TCount)
+ * LPart = LBase + LIndex
+ * VPart = VBase + VIndex
+ * if (TIndex == 0) {
+ * d = <LPart, VPart>
+ * } else {
+ * TPart = TBase + TIndex
+ * d = <LPart, VPart, TPart>
+ * }
+ */
+
+/* Constants */
+#define SB (0xAC00)
+#define LB (0x1100)
+#define VB (0x1161)
+#define TB (0x11A7)
+#define LC (19)
+#define VC (21)
+#define TC (28)
+#define NC (VC * TC)
+#define SC (LC * NC)
+
+/* Algorithmic decomposition of hangul syllable. */
+static utf8leaf_t *utf8hangul(const char *str, unsigned char *hangul)
+{
+ unsigned int si;
+ unsigned int li;
+ unsigned int vi;
+ unsigned int ti;
+ unsigned char *h;
+
+ /* Calculate the SI, LI, VI, and TI values. */
+ si = utf8decode(str) - SB;
+ li = si / NC;
+ vi = (si % NC) / TC;
+ ti = si % TC;
+
+ /* Fill in base of leaf. */
+ h = hangul;
+ LEAF_GEN(h) = 2;
+ LEAF_CCC(h) = DECOMPOSE;
+ h += 2;
+
+ /* Add LPart, a 3-byte UTF-8 sequence. */
+ h += utf8encode((char *)h, li + LB);
+
+ /* Add VPart, a 3-byte UTF-8 sequence. */
+ h += utf8encode((char *)h, vi + VB);
+
+ /* Add TPart if required, also a 3-byte UTF-8 sequence. */
+ if (ti)
+ h += utf8encode((char *)h, ti + TB);
+
+ /* Terminate string. */
+ h[0] = '\0';
+
+ return hangul;
+}
+
+/*
+ * Use trie to scan s, touching at most len bytes.
+ * Returns the leaf if one exists, NULL otherwise.
+ *
+ * A non-NULL return guarantees that the UTF-8 sequence starting at s
+ * is well-formed and corresponds to a known unicode code point. The
+ * shorthand for this will be "is valid UTF-8 unicode".
+ */
+static utf8leaf_t *utf8nlookup(struct tree *tree, unsigned char *hangul,
+ const char *s, size_t len)
+{
+ utf8trie_t *trie;
+ int offlen;
+ int offset;
+ int mask;
+ int node;
+
+ if (!tree)
+ return NULL;
+ if (len == 0)
+ return NULL;
+ node = 1;
+ trie = utf8data + tree->index;
+ while (node) {
+ offlen = (*trie & OFFLEN) >> OFFLEN_SHIFT;
+ if (*trie & NEXTBYTE) {
+ if (--len == 0)
+ return NULL;
+ s++;
+ }
+ mask = 1 << (*trie & BITNUM);
+ if (*s & mask) {
+ /* Right leg */
+ if (offlen) {
+ /* Right node at offset of trie */
+ node = (*trie & RIGHTNODE);
+ offset = trie[offlen];
+ while (--offlen) {
+ offset <<= 8;
+ offset |= trie[offlen];
+ }
+ trie += offset;
+ } else if (*trie & RIGHTPATH) {
+ /* Right node after this node */
+ node = (*trie & TRIENODE);
+ trie++;
+ } else {
+ /* No right node. */
+ return NULL;
+ }
+ } else {
+ /* Left leg */
+ if (offlen) {
+ /* Left node after this node. */
+ node = (*trie & LEFTNODE);
+ trie += offlen + 1;
+ } else if (*trie & RIGHTPATH) {
+ /* No left node. */
+ return NULL;
+ } else {
+ /* Left node after this node */
+ node = (*trie & TRIENODE);
+ trie++;
+ }
+ }
+ }
+ /*
+ * Hangul decomposition is done algorithmically. These are the
+ * codepoints >= 0xAC00 and <= 0xD7A3. Their UTF-8 encoding is
+ * always 3 bytes long, so s has been advanced twice, and the
+ * start of the sequence is at s-2.
+ */
+ if (LEAF_CCC(trie) == DECOMPOSE && LEAF_STR(trie)[0] == HANGUL)
+ trie = utf8hangul(s - 2, hangul);
+ return trie;
+}
+
+/*
+ * Use trie to scan s.
+ * Returns the leaf if one exists, NULL otherwise.
+ *
+ * Forwards to trie_nlookup().
+ */
+static utf8leaf_t *utf8lookup(struct tree *tree, unsigned char *hangul,
+ const char *s)
+{
+ return utf8nlookup(tree, hangul, s, (size_t)-1);
+}
+
+/*
+ * Return the number of bytes used by the current UTF-8 sequence.
+ * Assumes the input points to the first byte of a valid UTF-8
+ * sequence.
+ */
+static inline int utf8clen(const char *s)
+{
+ unsigned char c = *s;
+ return 1 + (c >= 0xC0) + (c >= 0xE0) + (c >= 0xF0);
+}
+
+/*
+ * Maximum age of any character in s.
+ * Return -1 if s is not valid UTF-8 unicode.
+ * Return 0 if only non-assigned code points are used.
+ */
+int utf8agemax(struct tree *tree, const char *s)
+{
+ utf8leaf_t *leaf;
+ int age = 0;
+ int leaf_age;
+ unsigned char hangul[UTF8HANGULLEAF];
+
+ if (!tree)
+ return -1;
+
+ while (*s) {
+ leaf = utf8lookup(tree, hangul, s);
+ if (!leaf)
+ return -1;
+ leaf_age = ages[LEAF_GEN(leaf)];
+ if (leaf_age <= tree->maxage && leaf_age > age)
+ age = leaf_age;
+ s += utf8clen(s);
+ }
+ return age;
+}
+
+/*
+ * Minimum age of any character in s.
+ * Return -1 if s is not valid UTF-8 unicode.
+ * Return 0 if non-assigned code points are used.
+ */
+int utf8agemin(struct tree *tree, const char *s)
+{
+ utf8leaf_t *leaf;
+ int age;
+ int leaf_age;
+ unsigned char hangul[UTF8HANGULLEAF];
+
+ if (!tree)
+ return -1;
+ age = tree->maxage;
+ while (*s) {
+ leaf = utf8lookup(tree, hangul, s);
+ if (!leaf)
+ return -1;
+ leaf_age = ages[LEAF_GEN(leaf)];
+ if (leaf_age <= tree->maxage && leaf_age < age)
+ age = leaf_age;
+ s += utf8clen(s);
+ }
+ return age;
+}
+
+/*
+ * Maximum age of any character in s, touch at most len bytes.
+ * Return -1 if s is not valid UTF-8 unicode.
+ */
+int utf8nagemax(struct tree *tree, const char *s, size_t len)
+{
+ utf8leaf_t *leaf;
+ int age = 0;
+ int leaf_age;
+ unsigned char hangul[UTF8HANGULLEAF];
+
+ if (!tree)
+ return -1;
+
+ while (len && *s) {
+ leaf = utf8nlookup(tree, hangul, s, len);
+ if (!leaf)
+ return -1;
+ leaf_age = ages[LEAF_GEN(leaf)];
+ if (leaf_age <= tree->maxage && leaf_age > age)
+ age = leaf_age;
+ len -= utf8clen(s);
+ s += utf8clen(s);
+ }
+ return age;
+}
+
+/*
+ * Maximum age of any character in s, touch at most len bytes.
+ * Return -1 if s is not valid UTF-8 unicode.
+ */
+int utf8nagemin(struct tree *tree, const char *s, size_t len)
+{
+ utf8leaf_t *leaf;
+ int leaf_age;
+ int age;
+ unsigned char hangul[UTF8HANGULLEAF];
+
+ if (!tree)
+ return -1;
+ age = tree->maxage;
+ while (len && *s) {
+ leaf = utf8nlookup(tree, hangul, s, len);
+ if (!leaf)
+ return -1;
+ leaf_age = ages[LEAF_GEN(leaf)];
+ if (leaf_age <= tree->maxage && leaf_age < age)
+ age = leaf_age;
+ len -= utf8clen(s);
+ s += utf8clen(s);
+ }
+ return age;
+}
+
+/*
+ * Length of the normalization of s.
+ * Return -1 if s is not valid UTF-8 unicode.
+ *
+ * A string of Default_Ignorable_Code_Point has length 0.
+ */
+ssize_t utf8len(struct tree *tree, const char *s)
+{
+ utf8leaf_t *leaf;
+ size_t ret = 0;
+ unsigned char hangul[UTF8HANGULLEAF];
+
+ if (!tree)
+ return -1;
+ while (*s) {
+ leaf = utf8lookup(tree, hangul, s);
+ if (!leaf)
+ return -1;
+ if (ages[LEAF_GEN(leaf)] > tree->maxage)
+ ret += utf8clen(s);
+ else if (LEAF_CCC(leaf) == DECOMPOSE)
+ ret += strlen(LEAF_STR(leaf));
+ else
+ ret += utf8clen(s);
+ s += utf8clen(s);
+ }
+ return ret;
+}
+
+/*
+ * Length of the normalization of s, touch at most len bytes.
+ * Return -1 if s is not valid UTF-8 unicode.
+ */
+ssize_t utf8nlen(struct tree *tree, const char *s, size_t len)
+{
+ utf8leaf_t *leaf;
+ size_t ret = 0;
+ unsigned char hangul[UTF8HANGULLEAF];
+
+ if (!tree)
+ return -1;
+ while (len && *s) {
+ leaf = utf8nlookup(tree, hangul, s, len);
+ if (!leaf)
+ return -1;
+ if (ages[LEAF_GEN(leaf)] > tree->maxage)
+ ret += utf8clen(s);
+ else if (LEAF_CCC(leaf) == DECOMPOSE)
+ ret += strlen(LEAF_STR(leaf));
+ else
+ ret += utf8clen(s);
+ len -= utf8clen(s);
+ s += utf8clen(s);
+ }
+ return ret;
+}
+
+/*
+ * Cursor structure used by the normalizer.
+ */
+struct utf8cursor {
+ struct tree *tree;
+ const char *s;
+ const char *p;
+ const char *ss;
+ const char *sp;
+ unsigned int len;
+ unsigned int slen;
+ short int ccc;
+ short int nccc;
+ unsigned int unichar;
+ unsigned char hangul[UTF8HANGULLEAF];
+};
+
+/*
+ * Set up an utf8cursor for use by utf8byte().
+ *
+ * s : string.
+ * len : length of s.
+ * u8c : pointer to cursor.
+ * trie : utf8trie_t to use for normalization.
+ *
+ * Returns -1 on error, 0 on success.
+ */
+int utf8ncursor(struct utf8cursor *u8c, struct tree *tree, const char *s,
+ size_t len)
+{
+ if (!tree)
+ return -1;
+ if (!s)
+ return -1;
+ u8c->tree = tree;
+ u8c->s = s;
+ u8c->p = NULL;
+ u8c->ss = NULL;
+ u8c->sp = NULL;
+ u8c->len = len;
+ u8c->slen = 0;
+ u8c->ccc = STOPPER;
+ u8c->nccc = STOPPER;
+ u8c->unichar = 0;
+ /* Check we didn't clobber the maximum length. */
+ if (u8c->len != len)
+ return -1;
+ /* The first byte of s may not be an utf8 continuation. */
+ if (len > 0 && (*s & 0xC0) == 0x80)
+ return -1;
+ return 0;
+}
+
+/*
+ * Set up an utf8cursor for use by utf8byte().
+ *
+ * s : NUL-terminated string.
+ * u8c : pointer to cursor.
+ * trie : utf8trie_t to use for normalization.
+ *
+ * Returns -1 on error, 0 on success.
+ */
+int utf8cursor(struct utf8cursor *u8c, struct tree *tree, const char *s)
+{
+ return utf8ncursor(u8c, tree, s, (unsigned int)-1);
+}
+
+/*
+ * Get one byte from the normalized form of the string described by u8c.
+ *
+ * Returns the byte cast to an unsigned char on succes, and -1 on failure.
+ *
+ * The cursor keeps track of the location in the string in u8c->s.
+ * When a character is decomposed, the current location is stored in
+ * u8c->p, and u8c->s is set to the start of the decomposition. Note
+ * that bytes from a decomposition do not count against u8c->len.
+ *
+ * Characters are emitted if they match the current CCC in u8c->ccc.
+ * Hitting end-of-string while u8c->ccc == STOPPER means we're done,
+ * and the function returns 0 in that case.
+ *
+ * Sorting by CCC is done by repeatedly scanning the string. The
+ * values of u8c->s and u8c->p are stored in u8c->ss and u8c->sp at
+ * the start of the scan. The first pass finds the lowest CCC to be
+ * emitted and stores it in u8c->nccc, the second pass emits the
+ * characters with this CCC and finds the next lowest CCC. This limits
+ * the number of passes to 1 + the number of different CCCs in the
+ * sequence being scanned.
+ *
+ * Therefore:
+ * u8c->p != NULL -> a decomposition is being scanned.
+ * u8c->ss != NULL -> this is a repeating scan.
+ * u8c->ccc == -1 -> this is the first scan of a repeating scan.
+ */
+int utf8byte(struct utf8cursor *u8c)
+{
+ utf8leaf_t *leaf;
+ int ccc;
+
+ for (;;) {
+ /* Check for the end of a decomposed character. */
+ if (u8c->p && *u8c->s == '\0') {
+ u8c->s = u8c->p;
+ u8c->p = NULL;
+ }
+
+ /* Check for end-of-string. */
+ if (!u8c->p && (u8c->len == 0 || *u8c->s == '\0')) {
+ /* There is no next byte. */
+ if (u8c->ccc == STOPPER)
+ return 0;
+ /* End-of-string during a scan counts as a stopper. */
+ ccc = STOPPER;
+ goto ccc_mismatch;
+ } else if ((*u8c->s & 0xC0) == 0x80) {
+ /* This is a continuation of the current character. */
+ if (!u8c->p)
+ u8c->len--;
+ return (unsigned char)*u8c->s++;
+ }
+
+ /* Look up the data for the current character. */
+ if (u8c->p) {
+ leaf = utf8lookup(u8c->tree, u8c->hangul, u8c->s);
+ } else {
+ leaf = utf8nlookup(u8c->tree, u8c->hangul,
+ u8c->s, u8c->len);
+ }
+
+ /* No leaf found implies that the input is a binary blob. */
+ if (!leaf)
+ return -1;
+
+ /* Characters that are too new have CCC 0. */
+ if (ages[LEAF_GEN(leaf)] > u8c->tree->maxage) {
+ ccc = STOPPER;
+ } else if ((ccc = LEAF_CCC(leaf)) == DECOMPOSE) {
+ u8c->len -= utf8clen(u8c->s);
+ u8c->p = u8c->s + utf8clen(u8c->s);
+ u8c->s = LEAF_STR(leaf);
+ /* Empty decomposition implies CCC 0. */
+ if (*u8c->s == '\0') {
+ if (u8c->ccc == STOPPER)
+ continue;
+ ccc = STOPPER;
+ goto ccc_mismatch;
+ }
+ leaf = utf8lookup(u8c->tree, u8c->hangul, u8c->s);
+ ccc = LEAF_CCC(leaf);
+ }
+ u8c->unichar = utf8decode(u8c->s);
+
+ /*
+ * If this is not a stopper, then see if it updates
+ * the next canonical class to be emitted.
+ */
+ if (ccc != STOPPER && u8c->ccc < ccc && ccc < u8c->nccc)
+ u8c->nccc = ccc;
+
+ /*
+ * Return the current byte if this is the current
+ * combining class.
+ */
+ if (ccc == u8c->ccc) {
+ if (!u8c->p)
+ u8c->len--;
+ return (unsigned char)*u8c->s++;
+ }
+
+ /* Current combining class mismatch. */
+ ccc_mismatch:
+ if (u8c->nccc == STOPPER) {
+ /*
+ * Scan forward for the first canonical class
+ * to be emitted. Save the position from
+ * which to restart.
+ */
+ assert(u8c->ccc == STOPPER);
+ u8c->ccc = MINCCC - 1;
+ u8c->nccc = ccc;
+ u8c->sp = u8c->p;
+ u8c->ss = u8c->s;
+ u8c->slen = u8c->len;
+ if (!u8c->p)
+ u8c->len -= utf8clen(u8c->s);
+ u8c->s += utf8clen(u8c->s);
+ } else if (ccc != STOPPER) {
+ /* Not a stopper, and not the ccc we're emitting. */
+ if (!u8c->p)
+ u8c->len -= utf8clen(u8c->s);
+ u8c->s += utf8clen(u8c->s);
+ } else if (u8c->nccc != MAXCCC + 1) {
+ /* At a stopper, restart for next ccc. */
+ u8c->ccc = u8c->nccc;
+ u8c->nccc = MAXCCC + 1;
+ u8c->s = u8c->ss;
+ u8c->p = u8c->sp;
+ u8c->len = u8c->slen;
+ } else {
+ /* All done, proceed from here. */
+ u8c->ccc = STOPPER;
+ u8c->nccc = STOPPER;
+ u8c->sp = NULL;
+ u8c->ss = NULL;
+ u8c->slen = 0;
+ }
+ }
+}
+
+/* ------------------------------------------------------------------ */
+
+static int normalize_line(struct tree *tree)
+{
+ char *s;
+ char *t;
+ int c;
+ struct utf8cursor u8c;
+
+ /* First test: null-terminated string. */
+ s = buf2;
+ t = buf3;
+ if (utf8cursor(&u8c, tree, s))
+ return -1;
+ while ((c = utf8byte(&u8c)) > 0)
+ if (c != (unsigned char)*t++)
+ return -1;
+ if (c < 0)
+ return -1;
+ if (*t != 0)
+ return -1;
+
+ /* Second test: length-limited string. */
+ s = buf2;
+ /* Replace NUL with a value that will cause an error if seen. */
+ s[strlen(s) + 1] = -1;
+ t = buf3;
+ if (utf8cursor(&u8c, tree, s))
+ return -1;
+ while ((c = utf8byte(&u8c)) > 0)
+ if (c != (unsigned char)*t++)
+ return -1;
+ if (c < 0)
+ return -1;
+ if (*t != 0)
+ return -1;
+
+ return 0;
+}
+
+static void normalization_test(void)
+{
+ FILE *file;
+ unsigned int unichar;
+ struct unicode_data *data;
+ char *s;
+ char *t;
+ int ret;
+ int ignorables;
+ int tests = 0;
+ int failures = 0;
+
+ if (verbose > 0)
+ printf("Parsing %s\n", test_name);
+ /* Step one, read data from file. */
+ file = fopen(test_name, "r");
+ if (!file)
+ open_fail(test_name, errno);
+
+ while (fgets(line, LINESIZE, file)) {
+ ret = sscanf(line, "%[^;];%*[^;];%[^;];%*[^;];%*[^;];",
+ buf0, buf1);
+ if (ret != 2 || *line == '#')
+ continue;
+ s = buf0;
+ t = buf2;
+ while (*s) {
+ unichar = strtoul(s, &s, 16);
+ t += utf8encode(t, unichar);
+ }
+ *t = '\0';
+
+ ignorables = 0;
+ s = buf1;
+ t = buf3;
+ while (*s) {
+ unichar = strtoul(s, &s, 16);
+ data = &unicode_data[unichar];
+ if (data->utf8nfdi && !*data->utf8nfdi)
+ ignorables = 1;
+ else
+ t += utf8encode(t, unichar);
+ }
+ *t = '\0';
+
+ tests++;
+ if (normalize_line(nfdi_tree) < 0) {
+ printf("Line %s -> %s", buf0, buf1);
+ if (ignorables)
+ printf(" (ignorables removed)");
+ printf(" failure\n");
+ failures++;
+ }
+ }
+ fclose(file);
+ if (verbose > 0)
+ printf("Ran %d tests with %d failures\n", tests, failures);
+ if (failures)
+ file_fail(test_name);
+}
+
+/* ------------------------------------------------------------------ */
+
+static void write_file(void)
+{
+ FILE *file;
+ int i;
+ int j;
+ int t;
+ int gen;
+
+ if (verbose > 0)
+ printf("Writing %s\n", utf8_name);
+ file = fopen(utf8_name, "w");
+ if (!file)
+ open_fail(utf8_name, errno);
+
+ fprintf(file, "/* This file is generated code, do not edit. */\n");
+ fprintf(file, "#ifndef __INCLUDED_FROM_UTF8NORM_C__\n");
+ fprintf(file, "#error Only nls_utf8-norm.c should include this file.\n");
+ fprintf(file, "#endif\n");
+ fprintf(file, "\n");
+ fprintf(file, "static const unsigned int utf8vers = %#x;\n",
+ unicode_maxage);
+ fprintf(file, "\n");
+ fprintf(file, "static const unsigned int utf8agetab[] = {\n");
+ for (i = 0; i != ages_count; i++)
+ fprintf(file, "\t%#x%s\n", ages[i],
+ ages[i] == unicode_maxage ? "" : ",");
+ fprintf(file, "};\n");
+ fprintf(file, "\n");
+ fprintf(file, "static const struct utf8data utf8nfdicfdata[] = {\n");
+ t = 0;
+ for (gen = 0; gen < ages_count; gen++) {
+ fprintf(file, "\t{ %#x, %d }%s\n",
+ ages[gen], trees[t].index,
+ ages[gen] == unicode_maxage ? "" : ",");
+ if (trees[t].maxage == ages[gen])
+ t += 2;
+ }
+ fprintf(file, "};\n");
+ fprintf(file, "\n");
+ fprintf(file, "static const struct utf8data utf8nfdidata[] = {\n");
+ t = 1;
+ for (gen = 0; gen < ages_count; gen++) {
+ fprintf(file, "\t{ %#x, %d }%s\n",
+ ages[gen], trees[t].index,
+ ages[gen] == unicode_maxage ? "" : ",");
+ if (trees[t].maxage == ages[gen])
+ t += 2;
+ }
+ fprintf(file, "};\n");
+ fprintf(file, "\n");
+ fprintf(file, "static const unsigned char utf8data[%zd] = {\n",
+ utf8data_size);
+ t = 0;
+ for (i = 0; i != utf8data_size; i += 16) {
+ if (i == trees[t].index) {
+ fprintf(file, "\t/* %s_%x */\n",
+ trees[t].type, trees[t].maxage);
+ if (t < trees_count-1)
+ t++;
+ }
+ fprintf(file, "\t");
+ for (j = i; j != i + 16; j++)
+ fprintf(file, "0x%.2x%s", utf8data[j],
+ (j < utf8data_size -1 ? "," : ""));
+ fprintf(file, "\n");
+ }
+ fprintf(file, "};\n");
+ fclose(file);
+}
+
+/* ------------------------------------------------------------------ */
+
+int main(int argc, char *argv[])
+{
+ unsigned int unichar;
+ int opt;
+
+ argv0 = argv[0];
+
+ while ((opt = getopt(argc, argv, "a:c:d:f:hn:o:p:t:v")) != -1) {
+ switch (opt) {
+ case 'a':
+ age_name = optarg;
+ break;
+ case 'c':
+ ccc_name = optarg;
+ break;
+ case 'd':
+ data_name = optarg;
+ break;
+ case 'f':
+ fold_name = optarg;
+ break;
+ case 'n':
+ norm_name = optarg;
+ break;
+ case 'o':
+ utf8_name = optarg;
+ break;
+ case 'p':
+ prop_name = optarg;
+ break;
+ case 't':
+ test_name = optarg;
+ break;
+ case 'v':
+ verbose++;
+ break;
+ case 'h':
+ help();
+ exit(0);
+ default:
+ usage();
+ }
+ }
+
+ if (verbose > 1)
+ help();
+ for (unichar = 0; unichar != 0x110000; unichar++)
+ unicode_data[unichar].code = unichar;
+ age_init();
+ ccc_init();
+ nfdi_init();
+ nfdicf_init();
+ ignore_init();
+ corrections_init();
+ hangul_decompose();
+ nfdi_decompose();
+ nfdicf_decompose();
+ utf8_init();
+ trees_init();
+ trees_populate();
+ trees_reduce();
+ trees_verify();
+ /* Prevent "unused function" warning. */
+ (void)lookup(nfdi_tree, " ");
+ if (verbose > 2)
+ tree_walk(nfdi_tree);
+ if (verbose > 2)
+ tree_walk(nfdicf_tree);
+ normalization_test();
+ write_file();
+
+ return 0;
+}
diff --git a/fs/unicode/utf8-core.c b/fs/unicode/utf8-core.c
new file mode 100644
index 0000000..d18789f2
--- /dev/null
+++ b/fs/unicode/utf8-core.c
@@ -0,0 +1,236 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/parser.h>
+#include <linux/errno.h>
+#include <linux/unicode.h>
+#include <linux/stringhash.h>
+
+#include "utf8n.h"
+
+int utf8_validate(const struct unicode_map *um, const struct qstr *str)
+{
+ const struct utf8data *data = utf8nfdi(um->version);
+
+ if (utf8nlen(data, str->name, str->len) < 0)
+ return -1;
+ return 0;
+}
+EXPORT_SYMBOL(utf8_validate);
+
+int utf8_strncmp(const struct unicode_map *um,
+ const struct qstr *s1, const struct qstr *s2)
+{
+ const struct utf8data *data = utf8nfdi(um->version);
+ struct utf8cursor cur1, cur2;
+ int c1, c2;
+
+ if (utf8ncursor(&cur1, data, s1->name, s1->len) < 0)
+ return -EINVAL;
+
+ if (utf8ncursor(&cur2, data, s2->name, s2->len) < 0)
+ return -EINVAL;
+
+ do {
+ c1 = utf8byte(&cur1);
+ c2 = utf8byte(&cur2);
+
+ if (c1 < 0 || c2 < 0)
+ return -EINVAL;
+ if (c1 != c2)
+ return 1;
+ } while (c1);
+
+ return 0;
+}
+EXPORT_SYMBOL(utf8_strncmp);
+
+int utf8_strncasecmp(const struct unicode_map *um,
+ const struct qstr *s1, const struct qstr *s2)
+{
+ const struct utf8data *data = utf8nfdicf(um->version);
+ struct utf8cursor cur1, cur2;
+ int c1, c2;
+
+ if (utf8ncursor(&cur1, data, s1->name, s1->len) < 0)
+ return -EINVAL;
+
+ if (utf8ncursor(&cur2, data, s2->name, s2->len) < 0)
+ return -EINVAL;
+
+ do {
+ c1 = utf8byte(&cur1);
+ c2 = utf8byte(&cur2);
+
+ if (c1 < 0 || c2 < 0)
+ return -EINVAL;
+ if (c1 != c2)
+ return 1;
+ } while (c1);
+
+ return 0;
+}
+EXPORT_SYMBOL(utf8_strncasecmp);
+
+/* String cf is expected to be a valid UTF-8 casefolded
+ * string.
+ */
+int utf8_strncasecmp_folded(const struct unicode_map *um,
+ const struct qstr *cf,
+ const struct qstr *s1)
+{
+ const struct utf8data *data = utf8nfdicf(um->version);
+ struct utf8cursor cur1;
+ int c1, c2;
+ int i = 0;
+
+ if (utf8ncursor(&cur1, data, s1->name, s1->len) < 0)
+ return -EINVAL;
+
+ do {
+ c1 = utf8byte(&cur1);
+ c2 = cf->name[i++];
+ if (c1 < 0)
+ return -EINVAL;
+ if (c1 != c2)
+ return 1;
+ } while (c1);
+
+ return 0;
+}
+EXPORT_SYMBOL(utf8_strncasecmp_folded);
+
+int utf8_casefold(const struct unicode_map *um, const struct qstr *str,
+ unsigned char *dest, size_t dlen)
+{
+ const struct utf8data *data = utf8nfdicf(um->version);
+ struct utf8cursor cur;
+ size_t nlen = 0;
+
+ if (utf8ncursor(&cur, data, str->name, str->len) < 0)
+ return -EINVAL;
+
+ for (nlen = 0; nlen < dlen; nlen++) {
+ int c = utf8byte(&cur);
+
+ dest[nlen] = c;
+ if (!c)
+ return nlen;
+ if (c == -1)
+ break;
+ }
+ return -EINVAL;
+}
+EXPORT_SYMBOL(utf8_casefold);
+
+int utf8_casefold_hash(const struct unicode_map *um, const void *salt,
+ struct qstr *str)
+{
+ const struct utf8data *data = utf8nfdicf(um->version);
+ struct utf8cursor cur;
+ int c;
+ unsigned long hash = init_name_hash(salt);
+
+ if (utf8ncursor(&cur, data, str->name, str->len) < 0)
+ return -EINVAL;
+
+ while ((c = utf8byte(&cur))) {
+ if (c < 0)
+ return c;
+ hash = partial_name_hash((unsigned char)c, hash);
+ }
+ str->hash = end_name_hash(hash);
+ return 0;
+}
+EXPORT_SYMBOL(utf8_casefold_hash);
+
+int utf8_normalize(const struct unicode_map *um, const struct qstr *str,
+ unsigned char *dest, size_t dlen)
+{
+ const struct utf8data *data = utf8nfdi(um->version);
+ struct utf8cursor cur;
+ ssize_t nlen = 0;
+
+ if (utf8ncursor(&cur, data, str->name, str->len) < 0)
+ return -EINVAL;
+
+ for (nlen = 0; nlen < dlen; nlen++) {
+ int c = utf8byte(&cur);
+
+ dest[nlen] = c;
+ if (!c)
+ return nlen;
+ if (c == -1)
+ break;
+ }
+ return -EINVAL;
+}
+
+EXPORT_SYMBOL(utf8_normalize);
+
+static int utf8_parse_version(const char *version, unsigned int *maj,
+ unsigned int *min, unsigned int *rev)
+{
+ substring_t args[3];
+ char version_string[12];
+ const struct match_token token[] = {
+ {1, "%d.%d.%d"},
+ {0, NULL}
+ };
+
+ strncpy(version_string, version, sizeof(version_string));
+
+ if (match_token(version_string, token, args) != 1)
+ return -EINVAL;
+
+ if (match_int(&args[0], maj) || match_int(&args[1], min) ||
+ match_int(&args[2], rev))
+ return -EINVAL;
+
+ return 0;
+}
+
+struct unicode_map *utf8_load(const char *version)
+{
+ struct unicode_map *um = NULL;
+ int unicode_version;
+
+ if (version) {
+ unsigned int maj, min, rev;
+
+ if (utf8_parse_version(version, &maj, &min, &rev) < 0)
+ return ERR_PTR(-EINVAL);
+
+ if (!utf8version_is_supported(maj, min, rev))
+ return ERR_PTR(-EINVAL);
+
+ unicode_version = UNICODE_AGE(maj, min, rev);
+ } else {
+ unicode_version = utf8version_latest();
+ printk(KERN_WARNING"UTF-8 version not specified. "
+ "Assuming latest supported version (%d.%d.%d).",
+ (unicode_version >> 16) & 0xff,
+ (unicode_version >> 8) & 0xff,
+ (unicode_version & 0xff));
+ }
+
+ um = kzalloc(sizeof(struct unicode_map), GFP_KERNEL);
+ if (!um)
+ return ERR_PTR(-ENOMEM);
+
+ um->charset = "UTF-8";
+ um->version = unicode_version;
+
+ return um;
+}
+EXPORT_SYMBOL(utf8_load);
+
+void utf8_unload(struct unicode_map *um)
+{
+ kfree(um);
+}
+EXPORT_SYMBOL(utf8_unload);
+
+MODULE_LICENSE("GPL v2");
diff --git a/fs/unicode/utf8-norm.c b/fs/unicode/utf8-norm.c
new file mode 100644
index 0000000..801ed6d
--- /dev/null
+++ b/fs/unicode/utf8-norm.c
@@ -0,0 +1,801 @@
+/*
+ * Copyright (c) 2014 SGI.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include "utf8n.h"
+
+struct utf8data {
+ unsigned int maxage;
+ unsigned int offset;
+};
+
+#define __INCLUDED_FROM_UTF8NORM_C__
+#include "utf8data.h"
+#undef __INCLUDED_FROM_UTF8NORM_C__
+
+int utf8version_is_supported(u8 maj, u8 min, u8 rev)
+{
+ int i = ARRAY_SIZE(utf8agetab) - 1;
+ unsigned int sb_utf8version = UNICODE_AGE(maj, min, rev);
+
+ while (i >= 0 && utf8agetab[i] != 0) {
+ if (sb_utf8version == utf8agetab[i])
+ return 1;
+ i--;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(utf8version_is_supported);
+
+int utf8version_latest(void)
+{
+ return utf8vers;
+}
+EXPORT_SYMBOL(utf8version_latest);
+
+/*
+ * UTF-8 valid ranges.
+ *
+ * The UTF-8 encoding spreads the bits of a 32bit word over several
+ * bytes. This table gives the ranges that can be held and how they'd
+ * be represented.
+ *
+ * 0x00000000 0x0000007F: 0xxxxxxx
+ * 0x00000000 0x000007FF: 110xxxxx 10xxxxxx
+ * 0x00000000 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx
+ * 0x00000000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
+ * 0x00000000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
+ * 0x00000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
+ *
+ * There is an additional requirement on UTF-8, in that only the
+ * shortest representation of a 32bit value is to be used. A decoder
+ * must not decode sequences that do not satisfy this requirement.
+ * Thus the allowed ranges have a lower bound.
+ *
+ * 0x00000000 0x0000007F: 0xxxxxxx
+ * 0x00000080 0x000007FF: 110xxxxx 10xxxxxx
+ * 0x00000800 0x0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx
+ * 0x00010000 0x001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
+ * 0x00200000 0x03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
+ * 0x04000000 0x7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
+ *
+ * Actual unicode characters are limited to the range 0x0 - 0x10FFFF,
+ * 17 planes of 65536 values. This limits the sequences actually seen
+ * even more, to just the following.
+ *
+ * 0 - 0x7F: 0 - 0x7F
+ * 0x80 - 0x7FF: 0xC2 0x80 - 0xDF 0xBF
+ * 0x800 - 0xFFFF: 0xE0 0xA0 0x80 - 0xEF 0xBF 0xBF
+ * 0x10000 - 0x10FFFF: 0xF0 0x90 0x80 0x80 - 0xF4 0x8F 0xBF 0xBF
+ *
+ * Within those ranges the surrogates 0xD800 - 0xDFFF are not allowed.
+ *
+ * Note that the longest sequence seen with valid usage is 4 bytes,
+ * the same a single UTF-32 character. This makes the UTF-8
+ * representation of Unicode strictly smaller than UTF-32.
+ *
+ * The shortest sequence requirement was introduced by:
+ * Corrigendum #1: UTF-8 Shortest Form
+ * It can be found here:
+ * http://www.unicode.org/versions/corrigendum1.html
+ *
+ */
+
+/*
+ * Return the number of bytes used by the current UTF-8 sequence.
+ * Assumes the input points to the first byte of a valid UTF-8
+ * sequence.
+ */
+static inline int utf8clen(const char *s)
+{
+ unsigned char c = *s;
+
+ return 1 + (c >= 0xC0) + (c >= 0xE0) + (c >= 0xF0);
+}
+
+/*
+ * Decode a 3-byte UTF-8 sequence.
+ */
+static unsigned int
+utf8decode3(const char *str)
+{
+ unsigned int uc;
+
+ uc = *str++ & 0x0F;
+ uc <<= 6;
+ uc |= *str++ & 0x3F;
+ uc <<= 6;
+ uc |= *str++ & 0x3F;
+
+ return uc;
+}
+
+/*
+ * Encode a 3-byte UTF-8 sequence.
+ */
+static int
+utf8encode3(char *str, unsigned int val)
+{
+ str[2] = (val & 0x3F) | 0x80;
+ val >>= 6;
+ str[1] = (val & 0x3F) | 0x80;
+ val >>= 6;
+ str[0] = val | 0xE0;
+
+ return 3;
+}
+
+/*
+ * utf8trie_t
+ *
+ * A compact binary tree, used to decode UTF-8 characters.
+ *
+ * Internal nodes are one byte for the node itself, and up to three
+ * bytes for an offset into the tree. The first byte contains the
+ * following information:
+ * NEXTBYTE - flag - advance to next byte if set
+ * BITNUM - 3 bit field - the bit number to tested
+ * OFFLEN - 2 bit field - number of bytes in the offset
+ * if offlen == 0 (non-branching node)
+ * RIGHTPATH - 1 bit field - set if the following node is for the
+ * right-hand path (tested bit is set)
+ * TRIENODE - 1 bit field - set if the following node is an internal
+ * node, otherwise it is a leaf node
+ * if offlen != 0 (branching node)
+ * LEFTNODE - 1 bit field - set if the left-hand node is internal
+ * RIGHTNODE - 1 bit field - set if the right-hand node is internal
+ *
+ * Due to the way utf8 works, there cannot be branching nodes with
+ * NEXTBYTE set, and moreover those nodes always have a righthand
+ * descendant.
+ */
+typedef const unsigned char utf8trie_t;
+#define BITNUM 0x07
+#define NEXTBYTE 0x08
+#define OFFLEN 0x30
+#define OFFLEN_SHIFT 4
+#define RIGHTPATH 0x40
+#define TRIENODE 0x80
+#define RIGHTNODE 0x40
+#define LEFTNODE 0x80
+
+/*
+ * utf8leaf_t
+ *
+ * The leaves of the trie are embedded in the trie, and so the same
+ * underlying datatype: unsigned char.
+ *
+ * leaf[0]: The unicode version, stored as a generation number that is
+ * an index into utf8agetab[]. With this we can filter code
+ * points based on the unicode version in which they were
+ * defined. The CCC of a non-defined code point is 0.
+ * leaf[1]: Canonical Combining Class. During normalization, we need
+ * to do a stable sort into ascending order of all characters
+ * with a non-zero CCC that occur between two characters with
+ * a CCC of 0, or at the begin or end of a string.
+ * The unicode standard guarantees that all CCC values are
+ * between 0 and 254 inclusive, which leaves 255 available as
+ * a special value.
+ * Code points with CCC 0 are known as stoppers.
+ * leaf[2]: Decomposition. If leaf[1] == 255, then leaf[2] is the
+ * start of a NUL-terminated string that is the decomposition
+ * of the character.
+ * The CCC of a decomposable character is the same as the CCC
+ * of the first character of its decomposition.
+ * Some characters decompose as the empty string: these are
+ * characters with the Default_Ignorable_Code_Point property.
+ * These do affect normalization, as they all have CCC 0.
+ *
+ * The decompositions in the trie have been fully expanded, with the
+ * exception of Hangul syllables, which are decomposed algorithmically.
+ *
+ * Casefolding, if applicable, is also done using decompositions.
+ *
+ * The trie is constructed in such a way that leaves exist for all
+ * UTF-8 sequences that match the criteria from the "UTF-8 valid
+ * ranges" comment above, and only for those sequences. Therefore a
+ * lookup in the trie can be used to validate the UTF-8 input.
+ */
+typedef const unsigned char utf8leaf_t;
+
+#define LEAF_GEN(LEAF) ((LEAF)[0])
+#define LEAF_CCC(LEAF) ((LEAF)[1])
+#define LEAF_STR(LEAF) ((const char *)((LEAF) + 2))
+
+#define MINCCC (0)
+#define MAXCCC (254)
+#define STOPPER (0)
+#define DECOMPOSE (255)
+
+/* Marker for hangul syllable decomposition. */
+#define HANGUL ((char)(255))
+/* Size of the synthesized leaf used for Hangul syllable decomposition. */
+#define UTF8HANGULLEAF (12)
+
+/*
+ * Hangul decomposition (algorithm from Section 3.12 of Unicode 6.3.0)
+ *
+ * AC00;<Hangul Syllable, First>;Lo;0;L;;;;;N;;;;;
+ * D7A3;<Hangul Syllable, Last>;Lo;0;L;;;;;N;;;;;
+ *
+ * SBase = 0xAC00
+ * LBase = 0x1100
+ * VBase = 0x1161
+ * TBase = 0x11A7
+ * LCount = 19
+ * VCount = 21
+ * TCount = 28
+ * NCount = 588 (VCount * TCount)
+ * SCount = 11172 (LCount * NCount)
+ *
+ * Decomposition:
+ * SIndex = s - SBase
+ *
+ * LV (Canonical/Full)
+ * LIndex = SIndex / NCount
+ * VIndex = (Sindex % NCount) / TCount
+ * LPart = LBase + LIndex
+ * VPart = VBase + VIndex
+ *
+ * LVT (Canonical)
+ * LVIndex = (SIndex / TCount) * TCount
+ * TIndex = (Sindex % TCount)
+ * LVPart = SBase + LVIndex
+ * TPart = TBase + TIndex
+ *
+ * LVT (Full)
+ * LIndex = SIndex / NCount
+ * VIndex = (Sindex % NCount) / TCount
+ * TIndex = (Sindex % TCount)
+ * LPart = LBase + LIndex
+ * VPart = VBase + VIndex
+ * if (TIndex == 0) {
+ * d = <LPart, VPart>
+ * } else {
+ * TPart = TBase + TIndex
+ * d = <LPart, TPart, VPart>
+ * }
+ */
+
+/* Constants */
+#define SB (0xAC00)
+#define LB (0x1100)
+#define VB (0x1161)
+#define TB (0x11A7)
+#define LC (19)
+#define VC (21)
+#define TC (28)
+#define NC (VC * TC)
+#define SC (LC * NC)
+
+/* Algorithmic decomposition of hangul syllable. */
+static utf8leaf_t *
+utf8hangul(const char *str, unsigned char *hangul)
+{
+ unsigned int si;
+ unsigned int li;
+ unsigned int vi;
+ unsigned int ti;
+ unsigned char *h;
+
+ /* Calculate the SI, LI, VI, and TI values. */
+ si = utf8decode3(str) - SB;
+ li = si / NC;
+ vi = (si % NC) / TC;
+ ti = si % TC;
+
+ /* Fill in base of leaf. */
+ h = hangul;
+ LEAF_GEN(h) = 2;
+ LEAF_CCC(h) = DECOMPOSE;
+ h += 2;
+
+ /* Add LPart, a 3-byte UTF-8 sequence. */
+ h += utf8encode3((char *)h, li + LB);
+
+ /* Add VPart, a 3-byte UTF-8 sequence. */
+ h += utf8encode3((char *)h, vi + VB);
+
+ /* Add TPart if required, also a 3-byte UTF-8 sequence. */
+ if (ti)
+ h += utf8encode3((char *)h, ti + TB);
+
+ /* Terminate string. */
+ h[0] = '\0';
+
+ return hangul;
+}
+
+/*
+ * Use trie to scan s, touching at most len bytes.
+ * Returns the leaf if one exists, NULL otherwise.
+ *
+ * A non-NULL return guarantees that the UTF-8 sequence starting at s
+ * is well-formed and corresponds to a known unicode code point. The
+ * shorthand for this will be "is valid UTF-8 unicode".
+ */
+static utf8leaf_t *utf8nlookup(const struct utf8data *data,
+ unsigned char *hangul, const char *s, size_t len)
+{
+ utf8trie_t *trie = NULL;
+ int offlen;
+ int offset;
+ int mask;
+ int node;
+
+ if (!data)
+ return NULL;
+ if (len == 0)
+ return NULL;
+
+ trie = utf8data + data->offset;
+ node = 1;
+ while (node) {
+ offlen = (*trie & OFFLEN) >> OFFLEN_SHIFT;
+ if (*trie & NEXTBYTE) {
+ if (--len == 0)
+ return NULL;
+ s++;
+ }
+ mask = 1 << (*trie & BITNUM);
+ if (*s & mask) {
+ /* Right leg */
+ if (offlen) {
+ /* Right node at offset of trie */
+ node = (*trie & RIGHTNODE);
+ offset = trie[offlen];
+ while (--offlen) {
+ offset <<= 8;
+ offset |= trie[offlen];
+ }
+ trie += offset;
+ } else if (*trie & RIGHTPATH) {
+ /* Right node after this node */
+ node = (*trie & TRIENODE);
+ trie++;
+ } else {
+ /* No right node. */
+ return NULL;
+ }
+ } else {
+ /* Left leg */
+ if (offlen) {
+ /* Left node after this node. */
+ node = (*trie & LEFTNODE);
+ trie += offlen + 1;
+ } else if (*trie & RIGHTPATH) {
+ /* No left node. */
+ return NULL;
+ } else {
+ /* Left node after this node */
+ node = (*trie & TRIENODE);
+ trie++;
+ }
+ }
+ }
+ /*
+ * Hangul decomposition is done algorithmically. These are the
+ * codepoints >= 0xAC00 and <= 0xD7A3. Their UTF-8 encoding is
+ * always 3 bytes long, so s has been advanced twice, and the
+ * start of the sequence is at s-2.
+ */
+ if (LEAF_CCC(trie) == DECOMPOSE && LEAF_STR(trie)[0] == HANGUL)
+ trie = utf8hangul(s - 2, hangul);
+ return trie;
+}
+
+/*
+ * Use trie to scan s.
+ * Returns the leaf if one exists, NULL otherwise.
+ *
+ * Forwards to utf8nlookup().
+ */
+static utf8leaf_t *utf8lookup(const struct utf8data *data,
+ unsigned char *hangul, const char *s)
+{
+ return utf8nlookup(data, hangul, s, (size_t)-1);
+}
+
+/*
+ * Maximum age of any character in s.
+ * Return -1 if s is not valid UTF-8 unicode.
+ * Return 0 if only non-assigned code points are used.
+ */
+int utf8agemax(const struct utf8data *data, const char *s)
+{
+ utf8leaf_t *leaf;
+ int age = 0;
+ int leaf_age;
+ unsigned char hangul[UTF8HANGULLEAF];
+
+ if (!data)
+ return -1;
+
+ while (*s) {
+ leaf = utf8lookup(data, hangul, s);
+ if (!leaf)
+ return -1;
+
+ leaf_age = utf8agetab[LEAF_GEN(leaf)];
+ if (leaf_age <= data->maxage && leaf_age > age)
+ age = leaf_age;
+ s += utf8clen(s);
+ }
+ return age;
+}
+EXPORT_SYMBOL(utf8agemax);
+
+/*
+ * Minimum age of any character in s.
+ * Return -1 if s is not valid UTF-8 unicode.
+ * Return 0 if non-assigned code points are used.
+ */
+int utf8agemin(const struct utf8data *data, const char *s)
+{
+ utf8leaf_t *leaf;
+ int age;
+ int leaf_age;
+ unsigned char hangul[UTF8HANGULLEAF];
+
+ if (!data)
+ return -1;
+ age = data->maxage;
+ while (*s) {
+ leaf = utf8lookup(data, hangul, s);
+ if (!leaf)
+ return -1;
+ leaf_age = utf8agetab[LEAF_GEN(leaf)];
+ if (leaf_age <= data->maxage && leaf_age < age)
+ age = leaf_age;
+ s += utf8clen(s);
+ }
+ return age;
+}
+EXPORT_SYMBOL(utf8agemin);
+
+/*
+ * Maximum age of any character in s, touch at most len bytes.
+ * Return -1 if s is not valid UTF-8 unicode.
+ */
+int utf8nagemax(const struct utf8data *data, const char *s, size_t len)
+{
+ utf8leaf_t *leaf;
+ int age = 0;
+ int leaf_age;
+ unsigned char hangul[UTF8HANGULLEAF];
+
+ if (!data)
+ return -1;
+
+ while (len && *s) {
+ leaf = utf8nlookup(data, hangul, s, len);
+ if (!leaf)
+ return -1;
+ leaf_age = utf8agetab[LEAF_GEN(leaf)];
+ if (leaf_age <= data->maxage && leaf_age > age)
+ age = leaf_age;
+ len -= utf8clen(s);
+ s += utf8clen(s);
+ }
+ return age;
+}
+EXPORT_SYMBOL(utf8nagemax);
+
+/*
+ * Maximum age of any character in s, touch at most len bytes.
+ * Return -1 if s is not valid UTF-8 unicode.
+ */
+int utf8nagemin(const struct utf8data *data, const char *s, size_t len)
+{
+ utf8leaf_t *leaf;
+ int leaf_age;
+ int age;
+ unsigned char hangul[UTF8HANGULLEAF];
+
+ if (!data)
+ return -1;
+ age = data->maxage;
+ while (len && *s) {
+ leaf = utf8nlookup(data, hangul, s, len);
+ if (!leaf)
+ return -1;
+ leaf_age = utf8agetab[LEAF_GEN(leaf)];
+ if (leaf_age <= data->maxage && leaf_age < age)
+ age = leaf_age;
+ len -= utf8clen(s);
+ s += utf8clen(s);
+ }
+ return age;
+}
+EXPORT_SYMBOL(utf8nagemin);
+
+/*
+ * Length of the normalization of s.
+ * Return -1 if s is not valid UTF-8 unicode.
+ *
+ * A string of Default_Ignorable_Code_Point has length 0.
+ */
+ssize_t utf8len(const struct utf8data *data, const char *s)
+{
+ utf8leaf_t *leaf;
+ size_t ret = 0;
+ unsigned char hangul[UTF8HANGULLEAF];
+
+ if (!data)
+ return -1;
+ while (*s) {
+ leaf = utf8lookup(data, hangul, s);
+ if (!leaf)
+ return -1;
+ if (utf8agetab[LEAF_GEN(leaf)] > data->maxage)
+ ret += utf8clen(s);
+ else if (LEAF_CCC(leaf) == DECOMPOSE)
+ ret += strlen(LEAF_STR(leaf));
+ else
+ ret += utf8clen(s);
+ s += utf8clen(s);
+ }
+ return ret;
+}
+EXPORT_SYMBOL(utf8len);
+
+/*
+ * Length of the normalization of s, touch at most len bytes.
+ * Return -1 if s is not valid UTF-8 unicode.
+ */
+ssize_t utf8nlen(const struct utf8data *data, const char *s, size_t len)
+{
+ utf8leaf_t *leaf;
+ size_t ret = 0;
+ unsigned char hangul[UTF8HANGULLEAF];
+
+ if (!data)
+ return -1;
+ while (len && *s) {
+ leaf = utf8nlookup(data, hangul, s, len);
+ if (!leaf)
+ return -1;
+ if (utf8agetab[LEAF_GEN(leaf)] > data->maxage)
+ ret += utf8clen(s);
+ else if (LEAF_CCC(leaf) == DECOMPOSE)
+ ret += strlen(LEAF_STR(leaf));
+ else
+ ret += utf8clen(s);
+ len -= utf8clen(s);
+ s += utf8clen(s);
+ }
+ return ret;
+}
+EXPORT_SYMBOL(utf8nlen);
+
+/*
+ * Set up an utf8cursor for use by utf8byte().
+ *
+ * u8c : pointer to cursor.
+ * data : const struct utf8data to use for normalization.
+ * s : string.
+ * len : length of s.
+ *
+ * Returns -1 on error, 0 on success.
+ */
+int utf8ncursor(struct utf8cursor *u8c, const struct utf8data *data,
+ const char *s, size_t len)
+{
+ if (!data)
+ return -1;
+ if (!s)
+ return -1;
+ u8c->data = data;
+ u8c->s = s;
+ u8c->p = NULL;
+ u8c->ss = NULL;
+ u8c->sp = NULL;
+ u8c->len = len;
+ u8c->slen = 0;
+ u8c->ccc = STOPPER;
+ u8c->nccc = STOPPER;
+ /* Check we didn't clobber the maximum length. */
+ if (u8c->len != len)
+ return -1;
+ /* The first byte of s may not be an utf8 continuation. */
+ if (len > 0 && (*s & 0xC0) == 0x80)
+ return -1;
+ return 0;
+}
+EXPORT_SYMBOL(utf8ncursor);
+
+/*
+ * Set up an utf8cursor for use by utf8byte().
+ *
+ * u8c : pointer to cursor.
+ * data : const struct utf8data to use for normalization.
+ * s : NUL-terminated string.
+ *
+ * Returns -1 on error, 0 on success.
+ */
+int utf8cursor(struct utf8cursor *u8c, const struct utf8data *data,
+ const char *s)
+{
+ return utf8ncursor(u8c, data, s, (unsigned int)-1);
+}
+EXPORT_SYMBOL(utf8cursor);
+
+/*
+ * Get one byte from the normalized form of the string described by u8c.
+ *
+ * Returns the byte cast to an unsigned char on succes, and -1 on failure.
+ *
+ * The cursor keeps track of the location in the string in u8c->s.
+ * When a character is decomposed, the current location is stored in
+ * u8c->p, and u8c->s is set to the start of the decomposition. Note
+ * that bytes from a decomposition do not count against u8c->len.
+ *
+ * Characters are emitted if they match the current CCC in u8c->ccc.
+ * Hitting end-of-string while u8c->ccc == STOPPER means we're done,
+ * and the function returns 0 in that case.
+ *
+ * Sorting by CCC is done by repeatedly scanning the string. The
+ * values of u8c->s and u8c->p are stored in u8c->ss and u8c->sp at
+ * the start of the scan. The first pass finds the lowest CCC to be
+ * emitted and stores it in u8c->nccc, the second pass emits the
+ * characters with this CCC and finds the next lowest CCC. This limits
+ * the number of passes to 1 + the number of different CCCs in the
+ * sequence being scanned.
+ *
+ * Therefore:
+ * u8c->p != NULL -> a decomposition is being scanned.
+ * u8c->ss != NULL -> this is a repeating scan.
+ * u8c->ccc == -1 -> this is the first scan of a repeating scan.
+ */
+int utf8byte(struct utf8cursor *u8c)
+{
+ utf8leaf_t *leaf;
+ int ccc;
+
+ for (;;) {
+ /* Check for the end of a decomposed character. */
+ if (u8c->p && *u8c->s == '\0') {
+ u8c->s = u8c->p;
+ u8c->p = NULL;
+ }
+
+ /* Check for end-of-string. */
+ if (!u8c->p && (u8c->len == 0 || *u8c->s == '\0')) {
+ /* There is no next byte. */
+ if (u8c->ccc == STOPPER)
+ return 0;
+ /* End-of-string during a scan counts as a stopper. */
+ ccc = STOPPER;
+ goto ccc_mismatch;
+ } else if ((*u8c->s & 0xC0) == 0x80) {
+ /* This is a continuation of the current character. */
+ if (!u8c->p)
+ u8c->len--;
+ return (unsigned char)*u8c->s++;
+ }
+
+ /* Look up the data for the current character. */
+ if (u8c->p) {
+ leaf = utf8lookup(u8c->data, u8c->hangul, u8c->s);
+ } else {
+ leaf = utf8nlookup(u8c->data, u8c->hangul,
+ u8c->s, u8c->len);
+ }
+
+ /* No leaf found implies that the input is a binary blob. */
+ if (!leaf)
+ return -1;
+
+ ccc = LEAF_CCC(leaf);
+ /* Characters that are too new have CCC 0. */
+ if (utf8agetab[LEAF_GEN(leaf)] > u8c->data->maxage) {
+ ccc = STOPPER;
+ } else if (ccc == DECOMPOSE) {
+ u8c->len -= utf8clen(u8c->s);
+ u8c->p = u8c->s + utf8clen(u8c->s);
+ u8c->s = LEAF_STR(leaf);
+ /* Empty decomposition implies CCC 0. */
+ if (*u8c->s == '\0') {
+ if (u8c->ccc == STOPPER)
+ continue;
+ ccc = STOPPER;
+ goto ccc_mismatch;
+ }
+
+ leaf = utf8lookup(u8c->data, u8c->hangul, u8c->s);
+ if (!leaf)
+ return -1;
+ ccc = LEAF_CCC(leaf);
+ }
+
+ /*
+ * If this is not a stopper, then see if it updates
+ * the next canonical class to be emitted.
+ */
+ if (ccc != STOPPER && u8c->ccc < ccc && ccc < u8c->nccc)
+ u8c->nccc = ccc;
+
+ /*
+ * Return the current byte if this is the current
+ * combining class.
+ */
+ if (ccc == u8c->ccc) {
+ if (!u8c->p)
+ u8c->len--;
+ return (unsigned char)*u8c->s++;
+ }
+
+ /* Current combining class mismatch. */
+ccc_mismatch:
+ if (u8c->nccc == STOPPER) {
+ /*
+ * Scan forward for the first canonical class
+ * to be emitted. Save the position from
+ * which to restart.
+ */
+ u8c->ccc = MINCCC - 1;
+ u8c->nccc = ccc;
+ u8c->sp = u8c->p;
+ u8c->ss = u8c->s;
+ u8c->slen = u8c->len;
+ if (!u8c->p)
+ u8c->len -= utf8clen(u8c->s);
+ u8c->s += utf8clen(u8c->s);
+ } else if (ccc != STOPPER) {
+ /* Not a stopper, and not the ccc we're emitting. */
+ if (!u8c->p)
+ u8c->len -= utf8clen(u8c->s);
+ u8c->s += utf8clen(u8c->s);
+ } else if (u8c->nccc != MAXCCC + 1) {
+ /* At a stopper, restart for next ccc. */
+ u8c->ccc = u8c->nccc;
+ u8c->nccc = MAXCCC + 1;
+ u8c->s = u8c->ss;
+ u8c->p = u8c->sp;
+ u8c->len = u8c->slen;
+ } else {
+ /* All done, proceed from here. */
+ u8c->ccc = STOPPER;
+ u8c->nccc = STOPPER;
+ u8c->sp = NULL;
+ u8c->ss = NULL;
+ u8c->slen = 0;
+ }
+ }
+}
+EXPORT_SYMBOL(utf8byte);
+
+const struct utf8data *utf8nfdi(unsigned int maxage)
+{
+ int i = ARRAY_SIZE(utf8nfdidata) - 1;
+
+ while (maxage < utf8nfdidata[i].maxage)
+ i--;
+ if (maxage > utf8nfdidata[i].maxage)
+ return NULL;
+ return &utf8nfdidata[i];
+}
+EXPORT_SYMBOL(utf8nfdi);
+
+const struct utf8data *utf8nfdicf(unsigned int maxage)
+{
+ int i = ARRAY_SIZE(utf8nfdicfdata) - 1;
+
+ while (maxage < utf8nfdicfdata[i].maxage)
+ i--;
+ if (maxage > utf8nfdicfdata[i].maxage)
+ return NULL;
+ return &utf8nfdicfdata[i];
+}
+EXPORT_SYMBOL(utf8nfdicf);
diff --git a/fs/unicode/utf8-selftest.c b/fs/unicode/utf8-selftest.c
new file mode 100644
index 0000000..8075201
--- /dev/null
+++ b/fs/unicode/utf8-selftest.c
@@ -0,0 +1,320 @@
+/*
+ * Kernel module for testing utf-8 support.
+ *
+ * Copyright 2017 Collabora Ltd.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/printk.h>
+#include <linux/unicode.h>
+#include <linux/dcache.h>
+
+#include "utf8n.h"
+
+unsigned int failed_tests;
+unsigned int total_tests;
+
+/* Tests will be based on this version. */
+#define latest_maj 12
+#define latest_min 1
+#define latest_rev 0
+
+#define _test(cond, func, line, fmt, ...) do { \
+ total_tests++; \
+ if (!cond) { \
+ failed_tests++; \
+ pr_err("test %s:%d Failed: %s%s", \
+ func, line, #cond, (fmt?":":".")); \
+ if (fmt) \
+ pr_err(fmt, ##__VA_ARGS__); \
+ } \
+ } while (0)
+#define test_f(cond, fmt, ...) _test(cond, __func__, __LINE__, fmt, ##__VA_ARGS__)
+#define test(cond) _test(cond, __func__, __LINE__, "")
+
+const static struct {
+ /* UTF-8 strings in this vector _must_ be NULL-terminated. */
+ unsigned char str[10];
+ unsigned char dec[10];
+} nfdi_test_data[] = {
+ /* Trivial sequence */
+ {
+ /* "ABba" decomposes to itself */
+ .str = "aBba",
+ .dec = "aBba",
+ },
+ /* Simple equivalent sequences */
+ {
+ /* 'VULGAR FRACTION ONE QUARTER' cannot decompose to
+ 'NUMBER 1' + 'FRACTION SLASH' + 'NUMBER 4' on
+ canonical decomposition */
+ .str = {0xc2, 0xbc, 0x00},
+ .dec = {0xc2, 0xbc, 0x00},
+ },
+ {
+ /* 'LATIN SMALL LETTER A WITH DIAERESIS' decomposes to
+ 'LETTER A' + 'COMBINING DIAERESIS' */
+ .str = {0xc3, 0xa4, 0x00},
+ .dec = {0x61, 0xcc, 0x88, 0x00},
+ },
+ {
+ /* 'LATIN SMALL LETTER LJ' can't decompose to
+ 'LETTER L' + 'LETTER J' on canonical decomposition */
+ .str = {0xC7, 0x89, 0x00},
+ .dec = {0xC7, 0x89, 0x00},
+ },
+ {
+ /* GREEK ANO TELEIA decomposes to MIDDLE DOT */
+ .str = {0xCE, 0x87, 0x00},
+ .dec = {0xC2, 0xB7, 0x00}
+ },
+ /* Canonical ordering */
+ {
+ /* A + 'COMBINING ACUTE ACCENT' + 'COMBINING OGONEK' decomposes
+ to A + 'COMBINING OGONEK' + 'COMBINING ACUTE ACCENT' */
+ .str = {0x41, 0xcc, 0x81, 0xcc, 0xa8, 0x0},
+ .dec = {0x41, 0xcc, 0xa8, 0xcc, 0x81, 0x0},
+ },
+ {
+ /* 'LATIN SMALL LETTER A WITH DIAERESIS' + 'COMBINING OGONEK'
+ decomposes to
+ 'LETTER A' + 'COMBINING OGONEK' + 'COMBINING DIAERESIS' */
+ .str = {0xc3, 0xa4, 0xCC, 0xA8, 0x00},
+
+ .dec = {0x61, 0xCC, 0xA8, 0xcc, 0x88, 0x00},
+ },
+
+};
+
+const static struct {
+ /* UTF-8 strings in this vector _must_ be NULL-terminated. */
+ unsigned char str[30];
+ unsigned char ncf[30];
+} nfdicf_test_data[] = {
+ /* Trivial sequences */
+ {
+ /* "ABba" folds to lowercase */
+ .str = {0x41, 0x42, 0x62, 0x61, 0x00},
+ .ncf = {0x61, 0x62, 0x62, 0x61, 0x00},
+ },
+ {
+ /* All ASCII folds to lower-case */
+ .str = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0.1",
+ .ncf = "abcdefghijklmnopqrstuvwxyz0.1",
+ },
+ {
+ /* LATIN SMALL LETTER SHARP S folds to
+ LATIN SMALL LETTER S + LATIN SMALL LETTER S */
+ .str = {0xc3, 0x9f, 0x00},
+ .ncf = {0x73, 0x73, 0x00},
+ },
+ {
+ /* LATIN CAPITAL LETTER A WITH RING ABOVE folds to
+ LATIN SMALL LETTER A + COMBINING RING ABOVE */
+ .str = {0xC3, 0x85, 0x00},
+ .ncf = {0x61, 0xcc, 0x8a, 0x00},
+ },
+ /* Introduced by UTF-8.0.0. */
+ /* Cherokee letters are interesting test-cases because they fold
+ to upper-case. Before 8.0.0, Cherokee lowercase were
+ undefined, thus, the folding from LC is not stable between
+ 7.0.0 -> 8.0.0, but it is from UC. */
+ {
+ /* CHEROKEE SMALL LETTER A folds to CHEROKEE LETTER A */
+ .str = {0xea, 0xad, 0xb0, 0x00},
+ .ncf = {0xe1, 0x8e, 0xa0, 0x00},
+ },
+ {
+ /* CHEROKEE SMALL LETTER YE folds to CHEROKEE LETTER YE */
+ .str = {0xe1, 0x8f, 0xb8, 0x00},
+ .ncf = {0xe1, 0x8f, 0xb0, 0x00},
+ },
+ {
+ /* OLD HUNGARIAN CAPITAL LETTER AMB folds to
+ OLD HUNGARIAN SMALL LETTER AMB */
+ .str = {0xf0, 0x90, 0xb2, 0x83, 0x00},
+ .ncf = {0xf0, 0x90, 0xb3, 0x83, 0x00},
+ },
+ /* Introduced by UTF-9.0.0. */
+ {
+ /* OSAGE CAPITAL LETTER CHA folds to
+ OSAGE SMALL LETTER CHA */
+ .str = {0xf0, 0x90, 0x92, 0xb5, 0x00},
+ .ncf = {0xf0, 0x90, 0x93, 0x9d, 0x00},
+ },
+ {
+ /* LATIN CAPITAL LETTER SMALL CAPITAL I folds to
+ LATIN LETTER SMALL CAPITAL I */
+ .str = {0xea, 0x9e, 0xae, 0x00},
+ .ncf = {0xc9, 0xaa, 0x00},
+ },
+ /* Introduced by UTF-11.0.0. */
+ {
+ /* GEORGIAN SMALL LETTER AN folds to GEORGIAN MTAVRULI
+ CAPITAL LETTER AN */
+ .str = {0xe1, 0xb2, 0x90, 0x00},
+ .ncf = {0xe1, 0x83, 0x90, 0x00},
+ }
+};
+
+static void check_utf8_nfdi(void)
+{
+ int i;
+ struct utf8cursor u8c;
+ const struct utf8data *data;
+
+ data = utf8nfdi(UNICODE_AGE(latest_maj, latest_min, latest_rev));
+ if (!data) {
+ pr_err("%s: Unable to load utf8-%d.%d.%d. Skipping.\n",
+ __func__, latest_maj, latest_min, latest_rev);
+ return;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(nfdi_test_data); i++) {
+ int len = strlen(nfdi_test_data[i].str);
+ int nlen = strlen(nfdi_test_data[i].dec);
+ int j = 0;
+ unsigned char c;
+
+ test((utf8len(data, nfdi_test_data[i].str) == nlen));
+ test((utf8nlen(data, nfdi_test_data[i].str, len) == nlen));
+
+ if (utf8cursor(&u8c, data, nfdi_test_data[i].str) < 0)
+ pr_err("can't create cursor\n");
+
+ while ((c = utf8byte(&u8c)) > 0) {
+ test_f((c == nfdi_test_data[i].dec[j]),
+ "Unexpected byte 0x%x should be 0x%x\n",
+ c, nfdi_test_data[i].dec[j]);
+ j++;
+ }
+
+ test((j == nlen));
+ }
+}
+
+static void check_utf8_nfdicf(void)
+{
+ int i;
+ struct utf8cursor u8c;
+ const struct utf8data *data;
+
+ data = utf8nfdicf(UNICODE_AGE(latest_maj, latest_min, latest_rev));
+ if (!data) {
+ pr_err("%s: Unable to load utf8-%d.%d.%d. Skipping.\n",
+ __func__, latest_maj, latest_min, latest_rev);
+ return;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(nfdicf_test_data); i++) {
+ int len = strlen(nfdicf_test_data[i].str);
+ int nlen = strlen(nfdicf_test_data[i].ncf);
+ int j = 0;
+ unsigned char c;
+
+ test((utf8len(data, nfdicf_test_data[i].str) == nlen));
+ test((utf8nlen(data, nfdicf_test_data[i].str, len) == nlen));
+
+ if (utf8cursor(&u8c, data, nfdicf_test_data[i].str) < 0)
+ pr_err("can't create cursor\n");
+
+ while ((c = utf8byte(&u8c)) > 0) {
+ test_f((c == nfdicf_test_data[i].ncf[j]),
+ "Unexpected byte 0x%x should be 0x%x\n",
+ c, nfdicf_test_data[i].ncf[j]);
+ j++;
+ }
+
+ test((j == nlen));
+ }
+}
+
+static void check_utf8_comparisons(void)
+{
+ int i;
+ struct unicode_map *table = utf8_load("12.1.0");
+
+ if (IS_ERR(table)) {
+ pr_err("%s: Unable to load utf8 %d.%d.%d. Skipping.\n",
+ __func__, latest_maj, latest_min, latest_rev);
+ return;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(nfdi_test_data); i++) {
+ const struct qstr s1 = {.name = nfdi_test_data[i].str,
+ .len = sizeof(nfdi_test_data[i].str)};
+ const struct qstr s2 = {.name = nfdi_test_data[i].dec,
+ .len = sizeof(nfdi_test_data[i].dec)};
+
+ test_f(!utf8_strncmp(table, &s1, &s2),
+ "%s %s comparison mismatch\n", s1.name, s2.name);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(nfdicf_test_data); i++) {
+ const struct qstr s1 = {.name = nfdicf_test_data[i].str,
+ .len = sizeof(nfdicf_test_data[i].str)};
+ const struct qstr s2 = {.name = nfdicf_test_data[i].ncf,
+ .len = sizeof(nfdicf_test_data[i].ncf)};
+
+ test_f(!utf8_strncasecmp(table, &s1, &s2),
+ "%s %s comparison mismatch\n", s1.name, s2.name);
+ }
+
+ utf8_unload(table);
+}
+
+static void check_supported_versions(void)
+{
+ /* Unicode 7.0.0 should be supported. */
+ test(utf8version_is_supported(7, 0, 0));
+
+ /* Unicode 9.0.0 should be supported. */
+ test(utf8version_is_supported(9, 0, 0));
+
+ /* Unicode 1x.0.0 (the latest version) should be supported. */
+ test(utf8version_is_supported(latest_maj, latest_min, latest_rev));
+
+ /* Next versions don't exist. */
+ test(!utf8version_is_supported(13, 0, 0));
+ test(!utf8version_is_supported(0, 0, 0));
+ test(!utf8version_is_supported(-1, -1, -1));
+}
+
+static int __init init_test_ucd(void)
+{
+ failed_tests = 0;
+ total_tests = 0;
+
+ check_supported_versions();
+ check_utf8_nfdi();
+ check_utf8_nfdicf();
+ check_utf8_comparisons();
+
+ if (!failed_tests)
+ pr_info("All %u tests passed\n", total_tests);
+ else
+ pr_err("%u out of %u tests failed\n", failed_tests,
+ total_tests);
+ return 0;
+}
+
+static void __exit exit_test_ucd(void)
+{
+}
+
+module_init(init_test_ucd);
+module_exit(exit_test_ucd);
+
+MODULE_AUTHOR("Gabriel Krisman Bertazi <krisman@collabora.co.uk>");
+MODULE_LICENSE("GPL");
diff --git a/fs/unicode/utf8data.h_shipped b/fs/unicode/utf8data.h_shipped
new file mode 100644
index 0000000..76e4f0e
--- /dev/null
+++ b/fs/unicode/utf8data.h_shipped
@@ -0,0 +1,4109 @@
+/* This file is generated code, do not edit. */
+#ifndef __INCLUDED_FROM_UTF8NORM_C__
+#error Only nls_utf8-norm.c should include this file.
+#endif
+
+static const unsigned int utf8vers = 0xc0100;
+
+static const unsigned int utf8agetab[] = {
+ 0,
+ 0x10100,
+ 0x20000,
+ 0x20100,
+ 0x30000,
+ 0x30100,
+ 0x30200,
+ 0x40000,
+ 0x40100,
+ 0x50000,
+ 0x50100,
+ 0x50200,
+ 0x60000,
+ 0x60100,
+ 0x60200,
+ 0x60300,
+ 0x70000,
+ 0x80000,
+ 0x90000,
+ 0xa0000,
+ 0xb0000,
+ 0xc0000,
+ 0xc0100
+};
+
+static const struct utf8data utf8nfdicfdata[] = {
+ { 0, 0 },
+ { 0x10100, 0 },
+ { 0x20000, 0 },
+ { 0x20100, 0 },
+ { 0x30000, 0 },
+ { 0x30100, 0 },
+ { 0x30200, 1792 },
+ { 0x40000, 3200 },
+ { 0x40100, 3200 },
+ { 0x50000, 3200 },
+ { 0x50100, 3200 },
+ { 0x50200, 3200 },
+ { 0x60000, 3200 },
+ { 0x60100, 3200 },
+ { 0x60200, 3200 },
+ { 0x60300, 3200 },
+ { 0x70000, 3200 },
+ { 0x80000, 3200 },
+ { 0x90000, 3200 },
+ { 0xa0000, 3200 },
+ { 0xb0000, 3200 },
+ { 0xc0000, 3200 },
+ { 0xc0100, 3200 }
+};
+
+static const struct utf8data utf8nfdidata[] = {
+ { 0, 896 },
+ { 0x10100, 896 },
+ { 0x20000, 896 },
+ { 0x20100, 896 },
+ { 0x30000, 896 },
+ { 0x30100, 896 },
+ { 0x30200, 2496 },
+ { 0x40000, 20736 },
+ { 0x40100, 20736 },
+ { 0x50000, 20736 },
+ { 0x50100, 20736 },
+ { 0x50200, 20736 },
+ { 0x60000, 20736 },
+ { 0x60100, 20736 },
+ { 0x60200, 20736 },
+ { 0x60300, 20736 },
+ { 0x70000, 20736 },
+ { 0x80000, 20736 },
+ { 0x90000, 20736 },
+ { 0xa0000, 20736 },
+ { 0xb0000, 20736 },
+ { 0xc0000, 20736 },
+ { 0xc0100, 20736 }
+};
+
+static const unsigned char utf8data[64256] = {
+ /* nfdicf_30100 */
+ 0xd7,0x07,0x66,0x84,0x0c,0x01,0x00,0xc6,0xd5,0x16,0xe4,0x99,0x1a,0xe3,0x63,0x15,
+ 0xe2,0x4c,0x0e,0xc1,0xe0,0x4e,0x0d,0xcf,0x86,0x65,0x2d,0x0d,0x01,0x00,0xd4,0xb8,
+ 0xd3,0x27,0xe2,0x89,0xa3,0xe1,0xce,0x35,0xe0,0x2c,0x22,0xcf,0x86,0xc5,0xe4,0x15,
+ 0x6d,0xe3,0x60,0x68,0xe2,0xf6,0x65,0xe1,0x29,0x65,0xe0,0xee,0x64,0xcf,0x86,0xe5,
+ 0xb3,0x64,0x64,0x96,0x64,0x0b,0x00,0xd2,0x0e,0xe1,0xb5,0x3c,0xe0,0xba,0xa3,0xcf,
+ 0x86,0xcf,0x06,0x01,0x00,0xd1,0x0c,0xe0,0x1e,0xa9,0xcf,0x86,0xcf,0x06,0x02,0xff,
+ 0xff,0xd0,0x08,0xcf,0x86,0xcf,0x06,0x01,0x00,0xcf,0x86,0xd5,0x06,0xcf,0x06,0x01,
+ 0x00,0xe4,0xe1,0x45,0xe3,0x3b,0x45,0xd2,0x06,0xcf,0x06,0x01,0x00,0xe1,0x87,0xad,
+ 0xd0,0x21,0xcf,0x86,0xe5,0x81,0xaa,0xe4,0x00,0xaa,0xe3,0xbf,0xa9,0xe2,0x9e,0xa9,
+ 0xe1,0x8d,0xa9,0x10,0x08,0x01,0xff,0xe8,0xb1,0x88,0x00,0x01,0xff,0xe6,0x9b,0xb4,
+ 0x00,0xcf,0x86,0xe5,0x63,0xac,0xd4,0x19,0xe3,0xa2,0xab,0xe2,0x81,0xab,0xe1,0x70,
+ 0xab,0x10,0x08,0x01,0xff,0xe9,0xb9,0xbf,0x00,0x01,0xff,0xe8,0xab,0x96,0x00,0xe3,
+ 0x09,0xac,0xe2,0xe8,0xab,0xe1,0xd7,0xab,0x10,0x08,0x01,0xff,0xe7,0xb8,0xb7,0x00,
+ 0x01,0xff,0xe9,0x9b,0xbb,0x00,0x83,0xe2,0x19,0xfa,0xe1,0xf2,0xf6,0xe0,0x6f,0xf5,
+ 0xcf,0x86,0xd5,0x31,0xc4,0xe3,0x54,0x4e,0xe2,0xf5,0x4c,0xe1,0xa4,0xcc,0xe0,0x9c,
+ 0x4b,0xcf,0x86,0xe5,0x8e,0x49,0xe4,0xaf,0x46,0xe3,0x11,0xbd,0xe2,0x68,0xbc,0xe1,
+ 0x43,0xbc,0xe0,0x1c,0xbc,0xcf,0x86,0xe5,0xe9,0xbb,0x94,0x07,0x63,0xd4,0xbb,0x07,
+ 0x00,0x07,0x00,0xe4,0xdb,0xf4,0xd3,0x08,0xcf,0x86,0xcf,0x06,0x05,0x00,0xd2,0x0b,
+ 0xe1,0xea,0xe1,0xcf,0x86,0xcf,0x06,0x05,0x00,0xd1,0x0e,0xe0,0xd9,0xe2,0xcf,0x86,
+ 0xe5,0x9e,0xe2,0xcf,0x06,0x11,0x00,0xd0,0x0b,0xcf,0x86,0xe5,0xd9,0xe2,0xcf,0x06,
+ 0x13,0x00,0xcf,0x86,0xd5,0x06,0xcf,0x06,0x00,0x00,0xe4,0x74,0xf4,0xe3,0x5d,0xf3,
+ 0xd2,0xa0,0xe1,0x13,0xe7,0xd0,0x21,0xcf,0x86,0xe5,0x14,0xe4,0xe4,0x90,0xe3,0xe3,
+ 0x4e,0xe3,0xe2,0x2d,0xe3,0xe1,0x1b,0xe3,0x10,0x08,0x05,0xff,0xe4,0xb8,0xbd,0x00,
+ 0x05,0xff,0xe4,0xb8,0xb8,0x00,0xcf,0x86,0xd5,0x1c,0xe4,0x70,0xe5,0xe3,0x2f,0xe5,
+ 0xe2,0x0e,0xe5,0xe1,0xfd,0xe4,0x10,0x08,0x05,0xff,0xe5,0x92,0xa2,0x00,0x05,0xff,
+ 0xe5,0x93,0xb6,0x00,0xd4,0x34,0xd3,0x18,0xe2,0xf7,0xe5,0xe1,0xe6,0xe5,0x10,0x09,
+ 0x05,0xff,0xf0,0xa1,0x9a,0xa8,0x00,0x05,0xff,0xf0,0xa1,0x9b,0xaa,0x00,0xe2,0x17,
+ 0xe6,0x91,0x11,0x10,0x09,0x05,0xff,0xf0,0xa1,0x8d,0xaa,0x00,0x05,0xff,0xe5,0xac,
+ 0x88,0x00,0x05,0xff,0xe5,0xac,0xbe,0x00,0xe3,0x5d,0xe6,0xd2,0x14,0xe1,0x2c,0xe6,
+ 0x10,0x08,0x05,0xff,0xe5,0xaf,0xb3,0x00,0x05,0xff,0xf0,0xa1,0xac,0x98,0x00,0xe1,
+ 0x38,0xe6,0x10,0x08,0x05,0xff,0xe5,0xbc,0xb3,0x00,0x05,0xff,0xe5,0xb0,0xa2,0x00,
+ 0xd1,0xd5,0xd0,0x6a,0xcf,0x86,0xe5,0x8d,0xeb,0xd4,0x19,0xe3,0xc6,0xea,0xe2,0xa4,
+ 0xea,0xe1,0x93,0xea,0x10,0x08,0x05,0xff,0xe6,0xb4,0xbe,0x00,0x05,0xff,0xe6,0xb5,
+ 0xb7,0x00,0xd3,0x18,0xe2,0x10,0xeb,0xe1,0xff,0xea,0x10,0x09,0x05,0xff,0xf0,0xa3,
+ 0xbd,0x9e,0x00,0x05,0xff,0xf0,0xa3,0xbe,0x8e,0x00,0xd2,0x13,0xe1,0x28,0xeb,0x10,
+ 0x08,0x05,0xff,0xe7,0x81,0xbd,0x00,0x05,0xff,0xe7,0x81,0xb7,0x00,0xd1,0x11,0x10,
+ 0x08,0x05,0xff,0xe7,0x85,0x85,0x00,0x05,0xff,0xf0,0xa4,0x89,0xa3,0x00,0x10,0x08,
+ 0x05,0xff,0xe7,0x86,0x9c,0x00,0x05,0xff,0xe4,0x8e,0xab,0x00,0xcf,0x86,0xe5,0x2a,
+ 0xed,0xd4,0x1a,0xe3,0x62,0xec,0xe2,0x48,0xec,0xe1,0x35,0xec,0x10,0x08,0x05,0xff,
+ 0xe7,0x9b,0xb4,0x00,0x05,0xff,0xf0,0xa5,0x83,0xb3,0x00,0xd3,0x16,0xe2,0xaa,0xec,
+ 0xe1,0x98,0xec,0x10,0x08,0x05,0xff,0xe7,0xa3,0x8c,0x00,0x05,0xff,0xe4,0x83,0xa3,
+ 0x00,0xd2,0x13,0xe1,0xc6,0xec,0x10,0x08,0x05,0xff,0xe4,0x84,0xaf,0x00,0x05,0xff,
+ 0xe7,0xa9,0x80,0x00,0xd1,0x12,0x10,0x09,0x05,0xff,0xf0,0xa5,0xa5,0xbc,0x00,0x05,
+ 0xff,0xf0,0xa5,0xaa,0xa7,0x00,0x10,0x09,0x05,0xff,0xf0,0xa5,0xaa,0xa7,0x00,0x05,
+ 0xff,0xe7,0xaa,0xae,0x00,0xe0,0xdc,0xef,0xcf,0x86,0xd5,0x1d,0xe4,0x51,0xee,0xe3,
+ 0x0d,0xee,0xe2,0xeb,0xed,0xe1,0xda,0xed,0x10,0x09,0x05,0xff,0xf0,0xa3,0x8d,0x9f,
+ 0x00,0x05,0xff,0xe4,0x8f,0x95,0x00,0xd4,0x19,0xe3,0xf8,0xee,0xe2,0xd4,0xee,0xe1,
+ 0xc3,0xee,0x10,0x08,0x05,0xff,0xe8,0x8d,0x93,0x00,0x05,0xff,0xe8,0x8f,0x8a,0x00,
+ 0xd3,0x18,0xe2,0x43,0xef,0xe1,0x32,0xef,0x10,0x09,0x05,0xff,0xf0,0xa6,0xbe,0xb1,
+ 0x00,0x05,0xff,0xf0,0xa7,0x83,0x92,0x00,0xd2,0x13,0xe1,0x5b,0xef,0x10,0x08,0x05,
+ 0xff,0xe8,0x9a,0x88,0x00,0x05,0xff,0xe8,0x9c,0x8e,0x00,0xd1,0x10,0x10,0x08,0x05,
+ 0xff,0xe8,0x9c,0xa8,0x00,0x05,0xff,0xe8,0x9d,0xab,0x00,0x10,0x08,0x05,0xff,0xe8,
+ 0x9e,0x86,0x00,0x05,0xff,0xe4,0xb5,0x97,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+ /* nfdi_30100 */
+ 0x57,0x04,0x01,0x00,0xc6,0xd5,0x16,0xe4,0xc2,0x59,0xe3,0xfb,0x54,0xe2,0x74,0x4f,
+ 0xc1,0xe0,0xa0,0x4d,0xcf,0x86,0x65,0x84,0x4d,0x01,0x00,0xd4,0xb8,0xd3,0x27,0xe2,
+ 0x0c,0xa0,0xe1,0xdf,0x8d,0xe0,0x39,0x71,0xcf,0x86,0xc5,0xe4,0x98,0x69,0xe3,0xe3,
+ 0x64,0xe2,0x79,0x62,0xe1,0xac,0x61,0xe0,0x71,0x61,0xcf,0x86,0xe5,0x36,0x61,0x64,
+ 0x19,0x61,0x0b,0x00,0xd2,0x0e,0xe1,0xc2,0xa0,0xe0,0x3d,0xa0,0xcf,0x86,0xcf,0x06,
+ 0x01,0x00,0xd1,0x0c,0xe0,0xa1,0xa5,0xcf,0x86,0xcf,0x06,0x02,0xff,0xff,0xd0,0x08,
+ 0xcf,0x86,0xcf,0x06,0x01,0x00,0xcf,0x86,0xd5,0x06,0xcf,0x06,0x01,0x00,0xe4,0x9e,
+ 0xb6,0xe3,0x18,0xae,0xd2,0x06,0xcf,0x06,0x01,0x00,0xe1,0x0a,0xaa,0xd0,0x21,0xcf,
+ 0x86,0xe5,0x04,0xa7,0xe4,0x83,0xa6,0xe3,0x42,0xa6,0xe2,0x21,0xa6,0xe1,0x10,0xa6,
+ 0x10,0x08,0x01,0xff,0xe8,0xb1,0x88,0x00,0x01,0xff,0xe6,0x9b,0xb4,0x00,0xcf,0x86,
+ 0xe5,0xe6,0xa8,0xd4,0x19,0xe3,0x25,0xa8,0xe2,0x04,0xa8,0xe1,0xf3,0xa7,0x10,0x08,
+ 0x01,0xff,0xe9,0xb9,0xbf,0x00,0x01,0xff,0xe8,0xab,0x96,0x00,0xe3,0x8c,0xa8,0xe2,
+ 0x6b,0xa8,0xe1,0x5a,0xa8,0x10,0x08,0x01,0xff,0xe7,0xb8,0xb7,0x00,0x01,0xff,0xe9,
+ 0x9b,0xbb,0x00,0x83,0xe2,0x9c,0xf6,0xe1,0x75,0xf3,0xe0,0xf2,0xf1,0xcf,0x86,0xd5,
+ 0x31,0xc4,0xe3,0x6d,0xcc,0xe2,0x46,0xca,0xe1,0x27,0xc9,0xe0,0xb7,0xbf,0xcf,0x86,
+ 0xe5,0xaa,0xbb,0xe4,0xa3,0xba,0xe3,0x94,0xb9,0xe2,0xeb,0xb8,0xe1,0xc6,0xb8,0xe0,
+ 0x9f,0xb8,0xcf,0x86,0xe5,0x6c,0xb8,0x94,0x07,0x63,0x57,0xb8,0x07,0x00,0x07,0x00,
+ 0xe4,0x5e,0xf1,0xd3,0x08,0xcf,0x86,0xcf,0x06,0x05,0x00,0xd2,0x0b,0xe1,0x6d,0xde,
+ 0xcf,0x86,0xcf,0x06,0x05,0x00,0xd1,0x0e,0xe0,0x5c,0xdf,0xcf,0x86,0xe5,0x21,0xdf,
+ 0xcf,0x06,0x11,0x00,0xd0,0x0b,0xcf,0x86,0xe5,0x5c,0xdf,0xcf,0x06,0x13,0x00,0xcf,
+ 0x86,0xd5,0x06,0xcf,0x06,0x00,0x00,0xe4,0xf7,0xf0,0xe3,0xe0,0xef,0xd2,0xa0,0xe1,
+ 0x96,0xe3,0xd0,0x21,0xcf,0x86,0xe5,0x97,0xe0,0xe4,0x13,0xe0,0xe3,0xd1,0xdf,0xe2,
+ 0xb0,0xdf,0xe1,0x9e,0xdf,0x10,0x08,0x05,0xff,0xe4,0xb8,0xbd,0x00,0x05,0xff,0xe4,
+ 0xb8,0xb8,0x00,0xcf,0x86,0xd5,0x1c,0xe4,0xf3,0xe1,0xe3,0xb2,0xe1,0xe2,0x91,0xe1,
+ 0xe1,0x80,0xe1,0x10,0x08,0x05,0xff,0xe5,0x92,0xa2,0x00,0x05,0xff,0xe5,0x93,0xb6,
+ 0x00,0xd4,0x34,0xd3,0x18,0xe2,0x7a,0xe2,0xe1,0x69,0xe2,0x10,0x09,0x05,0xff,0xf0,
+ 0xa1,0x9a,0xa8,0x00,0x05,0xff,0xf0,0xa1,0x9b,0xaa,0x00,0xe2,0x9a,0xe2,0x91,0x11,
+ 0x10,0x09,0x05,0xff,0xf0,0xa1,0x8d,0xaa,0x00,0x05,0xff,0xe5,0xac,0x88,0x00,0x05,
+ 0xff,0xe5,0xac,0xbe,0x00,0xe3,0xe0,0xe2,0xd2,0x14,0xe1,0xaf,0xe2,0x10,0x08,0x05,
+ 0xff,0xe5,0xaf,0xb3,0x00,0x05,0xff,0xf0,0xa1,0xac,0x98,0x00,0xe1,0xbb,0xe2,0x10,
+ 0x08,0x05,0xff,0xe5,0xbc,0xb3,0x00,0x05,0xff,0xe5,0xb0,0xa2,0x00,0xd1,0xd5,0xd0,
+ 0x6a,0xcf,0x86,0xe5,0x10,0xe8,0xd4,0x19,0xe3,0x49,0xe7,0xe2,0x27,0xe7,0xe1,0x16,
+ 0xe7,0x10,0x08,0x05,0xff,0xe6,0xb4,0xbe,0x00,0x05,0xff,0xe6,0xb5,0xb7,0x00,0xd3,
+ 0x18,0xe2,0x93,0xe7,0xe1,0x82,0xe7,0x10,0x09,0x05,0xff,0xf0,0xa3,0xbd,0x9e,0x00,
+ 0x05,0xff,0xf0,0xa3,0xbe,0x8e,0x00,0xd2,0x13,0xe1,0xab,0xe7,0x10,0x08,0x05,0xff,
+ 0xe7,0x81,0xbd,0x00,0x05,0xff,0xe7,0x81,0xb7,0x00,0xd1,0x11,0x10,0x08,0x05,0xff,
+ 0xe7,0x85,0x85,0x00,0x05,0xff,0xf0,0xa4,0x89,0xa3,0x00,0x10,0x08,0x05,0xff,0xe7,
+ 0x86,0x9c,0x00,0x05,0xff,0xe4,0x8e,0xab,0x00,0xcf,0x86,0xe5,0xad,0xe9,0xd4,0x1a,
+ 0xe3,0xe5,0xe8,0xe2,0xcb,0xe8,0xe1,0xb8,0xe8,0x10,0x08,0x05,0xff,0xe7,0x9b,0xb4,
+ 0x00,0x05,0xff,0xf0,0xa5,0x83,0xb3,0x00,0xd3,0x16,0xe2,0x2d,0xe9,0xe1,0x1b,0xe9,
+ 0x10,0x08,0x05,0xff,0xe7,0xa3,0x8c,0x00,0x05,0xff,0xe4,0x83,0xa3,0x00,0xd2,0x13,
+ 0xe1,0x49,0xe9,0x10,0x08,0x05,0xff,0xe4,0x84,0xaf,0x00,0x05,0xff,0xe7,0xa9,0x80,
+ 0x00,0xd1,0x12,0x10,0x09,0x05,0xff,0xf0,0xa5,0xa5,0xbc,0x00,0x05,0xff,0xf0,0xa5,
+ 0xaa,0xa7,0x00,0x10,0x09,0x05,0xff,0xf0,0xa5,0xaa,0xa7,0x00,0x05,0xff,0xe7,0xaa,
+ 0xae,0x00,0xe0,0x5f,0xec,0xcf,0x86,0xd5,0x1d,0xe4,0xd4,0xea,0xe3,0x90,0xea,0xe2,
+ 0x6e,0xea,0xe1,0x5d,0xea,0x10,0x09,0x05,0xff,0xf0,0xa3,0x8d,0x9f,0x00,0x05,0xff,
+ 0xe4,0x8f,0x95,0x00,0xd4,0x19,0xe3,0x7b,0xeb,0xe2,0x57,0xeb,0xe1,0x46,0xeb,0x10,
+ 0x08,0x05,0xff,0xe8,0x8d,0x93,0x00,0x05,0xff,0xe8,0x8f,0x8a,0x00,0xd3,0x18,0xe2,
+ 0xc6,0xeb,0xe1,0xb5,0xeb,0x10,0x09,0x05,0xff,0xf0,0xa6,0xbe,0xb1,0x00,0x05,0xff,
+ 0xf0,0xa7,0x83,0x92,0x00,0xd2,0x13,0xe1,0xde,0xeb,0x10,0x08,0x05,0xff,0xe8,0x9a,
+ 0x88,0x00,0x05,0xff,0xe8,0x9c,0x8e,0x00,0xd1,0x10,0x10,0x08,0x05,0xff,0xe8,0x9c,
+ 0xa8,0x00,0x05,0xff,0xe8,0x9d,0xab,0x00,0x10,0x08,0x05,0xff,0xe8,0x9e,0x86,0x00,
+ 0x05,0xff,0xe4,0xb5,0x97,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+ /* nfdicf_30200 */
+ 0xd7,0x07,0x66,0x84,0x05,0x01,0x00,0xc6,0xd5,0x16,0xe4,0x99,0x13,0xe3,0x63,0x0e,
+ 0xe2,0x4c,0x07,0xc1,0xe0,0x4e,0x06,0xcf,0x86,0x65,0x2d,0x06,0x01,0x00,0xd4,0x2a,
+ 0xe3,0xd0,0x35,0xe2,0x88,0x9c,0xe1,0xcd,0x2e,0xe0,0x2b,0x1b,0xcf,0x86,0xc5,0xe4,
+ 0x14,0x66,0xe3,0x5f,0x61,0xe2,0xf5,0x5e,0xe1,0x28,0x5e,0xe0,0xed,0x5d,0xcf,0x86,
+ 0xe5,0xb2,0x5d,0x64,0x95,0x5d,0x0b,0x00,0x83,0xe2,0xa7,0xf3,0xe1,0x80,0xf0,0xe0,
+ 0xfd,0xee,0xcf,0x86,0xd5,0x31,0xc4,0xe3,0xe2,0x47,0xe2,0x83,0x46,0xe1,0x32,0xc6,
+ 0xe0,0x2a,0x45,0xcf,0x86,0xe5,0x1c,0x43,0xe4,0x3d,0x40,0xe3,0x9f,0xb6,0xe2,0xf6,
+ 0xb5,0xe1,0xd1,0xb5,0xe0,0xaa,0xb5,0xcf,0x86,0xe5,0x77,0xb5,0x94,0x07,0x63,0x62,
+ 0xb5,0x07,0x00,0x07,0x00,0xe4,0x69,0xee,0xd3,0x08,0xcf,0x86,0xcf,0x06,0x05,0x00,
+ 0xd2,0x0b,0xe1,0x78,0xdb,0xcf,0x86,0xcf,0x06,0x05,0x00,0xd1,0x0e,0xe0,0x67,0xdc,
+ 0xcf,0x86,0xe5,0x2c,0xdc,0xcf,0x06,0x11,0x00,0xd0,0x0b,0xcf,0x86,0xe5,0x67,0xdc,
+ 0xcf,0x06,0x13,0x00,0xcf,0x86,0xd5,0x06,0xcf,0x06,0x00,0x00,0xe4,0x02,0xee,0xe3,
+ 0xeb,0xec,0xd2,0xa0,0xe1,0xa1,0xe0,0xd0,0x21,0xcf,0x86,0xe5,0xa2,0xdd,0xe4,0x1e,
+ 0xdd,0xe3,0xdc,0xdc,0xe2,0xbb,0xdc,0xe1,0xa9,0xdc,0x10,0x08,0x05,0xff,0xe4,0xb8,
+ 0xbd,0x00,0x05,0xff,0xe4,0xb8,0xb8,0x00,0xcf,0x86,0xd5,0x1c,0xe4,0xfe,0xde,0xe3,
+ 0xbd,0xde,0xe2,0x9c,0xde,0xe1,0x8b,0xde,0x10,0x08,0x05,0xff,0xe5,0x92,0xa2,0x00,
+ 0x05,0xff,0xe5,0x93,0xb6,0x00,0xd4,0x34,0xd3,0x18,0xe2,0x85,0xdf,0xe1,0x74,0xdf,
+ 0x10,0x09,0x05,0xff,0xf0,0xa1,0x9a,0xa8,0x00,0x05,0xff,0xf0,0xa1,0x9b,0xaa,0x00,
+ 0xe2,0xa5,0xdf,0x91,0x11,0x10,0x09,0x05,0xff,0xf0,0xa1,0x8d,0xaa,0x00,0x05,0xff,
+ 0xe5,0xac,0x88,0x00,0x05,0xff,0xe5,0xac,0xbe,0x00,0xe3,0xeb,0xdf,0xd2,0x14,0xe1,
+ 0xba,0xdf,0x10,0x08,0x05,0xff,0xe5,0xaf,0xb3,0x00,0x05,0xff,0xf0,0xa1,0xac,0x98,
+ 0x00,0xe1,0xc6,0xdf,0x10,0x08,0x05,0xff,0xe5,0xbc,0xb3,0x00,0x05,0xff,0xe5,0xb0,
+ 0xa2,0x00,0xd1,0xd5,0xd0,0x6a,0xcf,0x86,0xe5,0x1b,0xe5,0xd4,0x19,0xe3,0x54,0xe4,
+ 0xe2,0x32,0xe4,0xe1,0x21,0xe4,0x10,0x08,0x05,0xff,0xe6,0xb4,0xbe,0x00,0x05,0xff,
+ 0xe6,0xb5,0xb7,0x00,0xd3,0x18,0xe2,0x9e,0xe4,0xe1,0x8d,0xe4,0x10,0x09,0x05,0xff,
+ 0xf0,0xa3,0xbd,0x9e,0x00,0x05,0xff,0xf0,0xa3,0xbe,0x8e,0x00,0xd2,0x13,0xe1,0xb6,
+ 0xe4,0x10,0x08,0x05,0xff,0xe7,0x81,0xbd,0x00,0x05,0xff,0xe7,0x81,0xb7,0x00,0xd1,
+ 0x11,0x10,0x08,0x05,0xff,0xe7,0x85,0x85,0x00,0x05,0xff,0xf0,0xa4,0x89,0xa3,0x00,
+ 0x10,0x08,0x05,0xff,0xe7,0x86,0x9c,0x00,0x05,0xff,0xe4,0x8e,0xab,0x00,0xcf,0x86,
+ 0xe5,0xb8,0xe6,0xd4,0x1a,0xe3,0xf0,0xe5,0xe2,0xd6,0xe5,0xe1,0xc3,0xe5,0x10,0x08,
+ 0x05,0xff,0xe7,0x9b,0xb4,0x00,0x05,0xff,0xf0,0xa5,0x83,0xb3,0x00,0xd3,0x16,0xe2,
+ 0x38,0xe6,0xe1,0x26,0xe6,0x10,0x08,0x05,0xff,0xe7,0xa3,0x8c,0x00,0x05,0xff,0xe4,
+ 0x83,0xa3,0x00,0xd2,0x13,0xe1,0x54,0xe6,0x10,0x08,0x05,0xff,0xe4,0x84,0xaf,0x00,
+ 0x05,0xff,0xe7,0xa9,0x80,0x00,0xd1,0x12,0x10,0x09,0x05,0xff,0xf0,0xa5,0xa5,0xbc,
+ 0x00,0x05,0xff,0xf0,0xa5,0xaa,0xa7,0x00,0x10,0x09,0x05,0xff,0xf0,0xa5,0xaa,0xa7,
+ 0x00,0x05,0xff,0xe7,0xaa,0xae,0x00,0xe0,0x6a,0xe9,0xcf,0x86,0xd5,0x1d,0xe4,0xdf,
+ 0xe7,0xe3,0x9b,0xe7,0xe2,0x79,0xe7,0xe1,0x68,0xe7,0x10,0x09,0x05,0xff,0xf0,0xa3,
+ 0x8d,0x9f,0x00,0x05,0xff,0xe4,0x8f,0x95,0x00,0xd4,0x19,0xe3,0x86,0xe8,0xe2,0x62,
+ 0xe8,0xe1,0x51,0xe8,0x10,0x08,0x05,0xff,0xe8,0x8d,0x93,0x00,0x05,0xff,0xe8,0x8f,
+ 0x8a,0x00,0xd3,0x18,0xe2,0xd1,0xe8,0xe1,0xc0,0xe8,0x10,0x09,0x05,0xff,0xf0,0xa6,
+ 0xbe,0xb1,0x00,0x05,0xff,0xf0,0xa7,0x83,0x92,0x00,0xd2,0x13,0xe1,0xe9,0xe8,0x10,
+ 0x08,0x05,0xff,0xe8,0x9a,0x88,0x00,0x05,0xff,0xe8,0x9c,0x8e,0x00,0xd1,0x10,0x10,
+ 0x08,0x05,0xff,0xe8,0x9c,0xa8,0x00,0x05,0xff,0xe8,0x9d,0xab,0x00,0x10,0x08,0x05,
+ 0xff,0xe8,0x9e,0x86,0x00,0x05,0xff,0xe4,0xb5,0x97,0x00,0x00,0x00,0x00,0x00,0x00,
+ /* nfdi_30200 */
+ 0x57,0x04,0x01,0x00,0xc6,0xd5,0x16,0xe4,0x82,0x53,0xe3,0xbb,0x4e,0xe2,0x34,0x49,
+ 0xc1,0xe0,0x60,0x47,0xcf,0x86,0x65,0x44,0x47,0x01,0x00,0xd4,0x2a,0xe3,0x1c,0x9a,
+ 0xe2,0xcb,0x99,0xe1,0x9e,0x87,0xe0,0xf8,0x6a,0xcf,0x86,0xc5,0xe4,0x57,0x63,0xe3,
+ 0xa2,0x5e,0xe2,0x38,0x5c,0xe1,0x6b,0x5b,0xe0,0x30,0x5b,0xcf,0x86,0xe5,0xf5,0x5a,
+ 0x64,0xd8,0x5a,0x0b,0x00,0x83,0xe2,0xea,0xf0,0xe1,0xc3,0xed,0xe0,0x40,0xec,0xcf,
+ 0x86,0xd5,0x31,0xc4,0xe3,0xbb,0xc6,0xe2,0x94,0xc4,0xe1,0x75,0xc3,0xe0,0x05,0xba,
+ 0xcf,0x86,0xe5,0xf8,0xb5,0xe4,0xf1,0xb4,0xe3,0xe2,0xb3,0xe2,0x39,0xb3,0xe1,0x14,
+ 0xb3,0xe0,0xed,0xb2,0xcf,0x86,0xe5,0xba,0xb2,0x94,0x07,0x63,0xa5,0xb2,0x07,0x00,
+ 0x07,0x00,0xe4,0xac,0xeb,0xd3,0x08,0xcf,0x86,0xcf,0x06,0x05,0x00,0xd2,0x0b,0xe1,
+ 0xbb,0xd8,0xcf,0x86,0xcf,0x06,0x05,0x00,0xd1,0x0e,0xe0,0xaa,0xd9,0xcf,0x86,0xe5,
+ 0x6f,0xd9,0xcf,0x06,0x11,0x00,0xd0,0x0b,0xcf,0x86,0xe5,0xaa,0xd9,0xcf,0x06,0x13,
+ 0x00,0xcf,0x86,0xd5,0x06,0xcf,0x06,0x00,0x00,0xe4,0x45,0xeb,0xe3,0x2e,0xea,0xd2,
+ 0xa0,0xe1,0xe4,0xdd,0xd0,0x21,0xcf,0x86,0xe5,0xe5,0xda,0xe4,0x61,0xda,0xe3,0x1f,
+ 0xda,0xe2,0xfe,0xd9,0xe1,0xec,0xd9,0x10,0x08,0x05,0xff,0xe4,0xb8,0xbd,0x00,0x05,
+ 0xff,0xe4,0xb8,0xb8,0x00,0xcf,0x86,0xd5,0x1c,0xe4,0x41,0xdc,0xe3,0x00,0xdc,0xe2,
+ 0xdf,0xdb,0xe1,0xce,0xdb,0x10,0x08,0x05,0xff,0xe5,0x92,0xa2,0x00,0x05,0xff,0xe5,
+ 0x93,0xb6,0x00,0xd4,0x34,0xd3,0x18,0xe2,0xc8,0xdc,0xe1,0xb7,0xdc,0x10,0x09,0x05,
+ 0xff,0xf0,0xa1,0x9a,0xa8,0x00,0x05,0xff,0xf0,0xa1,0x9b,0xaa,0x00,0xe2,0xe8,0xdc,
+ 0x91,0x11,0x10,0x09,0x05,0xff,0xf0,0xa1,0x8d,0xaa,0x00,0x05,0xff,0xe5,0xac,0x88,
+ 0x00,0x05,0xff,0xe5,0xac,0xbe,0x00,0xe3,0x2e,0xdd,0xd2,0x14,0xe1,0xfd,0xdc,0x10,
+ 0x08,0x05,0xff,0xe5,0xaf,0xb3,0x00,0x05,0xff,0xf0,0xa1,0xac,0x98,0x00,0xe1,0x09,
+ 0xdd,0x10,0x08,0x05,0xff,0xe5,0xbc,0xb3,0x00,0x05,0xff,0xe5,0xb0,0xa2,0x00,0xd1,
+ 0xd5,0xd0,0x6a,0xcf,0x86,0xe5,0x5e,0xe2,0xd4,0x19,0xe3,0x97,0xe1,0xe2,0x75,0xe1,
+ 0xe1,0x64,0xe1,0x10,0x08,0x05,0xff,0xe6,0xb4,0xbe,0x00,0x05,0xff,0xe6,0xb5,0xb7,
+ 0x00,0xd3,0x18,0xe2,0xe1,0xe1,0xe1,0xd0,0xe1,0x10,0x09,0x05,0xff,0xf0,0xa3,0xbd,
+ 0x9e,0x00,0x05,0xff,0xf0,0xa3,0xbe,0x8e,0x00,0xd2,0x13,0xe1,0xf9,0xe1,0x10,0x08,
+ 0x05,0xff,0xe7,0x81,0xbd,0x00,0x05,0xff,0xe7,0x81,0xb7,0x00,0xd1,0x11,0x10,0x08,
+ 0x05,0xff,0xe7,0x85,0x85,0x00,0x05,0xff,0xf0,0xa4,0x89,0xa3,0x00,0x10,0x08,0x05,
+ 0xff,0xe7,0x86,0x9c,0x00,0x05,0xff,0xe4,0x8e,0xab,0x00,0xcf,0x86,0xe5,0xfb,0xe3,
+ 0xd4,0x1a,0xe3,0x33,0xe3,0xe2,0x19,0xe3,0xe1,0x06,0xe3,0x10,0x08,0x05,0xff,0xe7,
+ 0x9b,0xb4,0x00,0x05,0xff,0xf0,0xa5,0x83,0xb3,0x00,0xd3,0x16,0xe2,0x7b,0xe3,0xe1,
+ 0x69,0xe3,0x10,0x08,0x05,0xff,0xe7,0xa3,0x8c,0x00,0x05,0xff,0xe4,0x83,0xa3,0x00,
+ 0xd2,0x13,0xe1,0x97,0xe3,0x10,0x08,0x05,0xff,0xe4,0x84,0xaf,0x00,0x05,0xff,0xe7,
+ 0xa9,0x80,0x00,0xd1,0x12,0x10,0x09,0x05,0xff,0xf0,0xa5,0xa5,0xbc,0x00,0x05,0xff,
+ 0xf0,0xa5,0xaa,0xa7,0x00,0x10,0x09,0x05,0xff,0xf0,0xa5,0xaa,0xa7,0x00,0x05,0xff,
+ 0xe7,0xaa,0xae,0x00,0xe0,0xad,0xe6,0xcf,0x86,0xd5,0x1d,0xe4,0x22,0xe5,0xe3,0xde,
+ 0xe4,0xe2,0xbc,0xe4,0xe1,0xab,0xe4,0x10,0x09,0x05,0xff,0xf0,0xa3,0x8d,0x9f,0x00,
+ 0x05,0xff,0xe4,0x8f,0x95,0x00,0xd4,0x19,0xe3,0xc9,0xe5,0xe2,0xa5,0xe5,0xe1,0x94,
+ 0xe5,0x10,0x08,0x05,0xff,0xe8,0x8d,0x93,0x00,0x05,0xff,0xe8,0x8f,0x8a,0x00,0xd3,
+ 0x18,0xe2,0x14,0xe6,0xe1,0x03,0xe6,0x10,0x09,0x05,0xff,0xf0,0xa6,0xbe,0xb1,0x00,
+ 0x05,0xff,0xf0,0xa7,0x83,0x92,0x00,0xd2,0x13,0xe1,0x2c,0xe6,0x10,0x08,0x05,0xff,
+ 0xe8,0x9a,0x88,0x00,0x05,0xff,0xe8,0x9c,0x8e,0x00,0xd1,0x10,0x10,0x08,0x05,0xff,
+ 0xe8,0x9c,0xa8,0x00,0x05,0xff,0xe8,0x9d,0xab,0x00,0x10,0x08,0x05,0xff,0xe8,0x9e,
+ 0x86,0x00,0x05,0xff,0xe4,0xb5,0x97,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+ /* nfdicf_c0100 */
+ 0xd7,0xb0,0x56,0x04,0x01,0x00,0x95,0xa8,0xd4,0x5e,0xd3,0x2e,0xd2,0x16,0xd1,0x0a,
+ 0x10,0x04,0x01,0x00,0x01,0xff,0x61,0x00,0x10,0x06,0x01,0xff,0x62,0x00,0x01,0xff,
+ 0x63,0x00,0xd1,0x0c,0x10,0x06,0x01,0xff,0x64,0x00,0x01,0xff,0x65,0x00,0x10,0x06,
+ 0x01,0xff,0x66,0x00,0x01,0xff,0x67,0x00,0xd2,0x18,0xd1,0x0c,0x10,0x06,0x01,0xff,
+ 0x68,0x00,0x01,0xff,0x69,0x00,0x10,0x06,0x01,0xff,0x6a,0x00,0x01,0xff,0x6b,0x00,
+ 0xd1,0x0c,0x10,0x06,0x01,0xff,0x6c,0x00,0x01,0xff,0x6d,0x00,0x10,0x06,0x01,0xff,
+ 0x6e,0x00,0x01,0xff,0x6f,0x00,0xd3,0x30,0xd2,0x18,0xd1,0x0c,0x10,0x06,0x01,0xff,
+ 0x70,0x00,0x01,0xff,0x71,0x00,0x10,0x06,0x01,0xff,0x72,0x00,0x01,0xff,0x73,0x00,
+ 0xd1,0x0c,0x10,0x06,0x01,0xff,0x74,0x00,0x01,0xff,0x75,0x00,0x10,0x06,0x01,0xff,
+ 0x76,0x00,0x01,0xff,0x77,0x00,0x92,0x16,0xd1,0x0c,0x10,0x06,0x01,0xff,0x78,0x00,
+ 0x01,0xff,0x79,0x00,0x10,0x06,0x01,0xff,0x7a,0x00,0x01,0x00,0x01,0x00,0x01,0x00,
+ 0xc6,0xe5,0xf9,0x14,0xe4,0x6f,0x0d,0xe3,0x39,0x08,0xe2,0x22,0x01,0xc1,0xd0,0x24,
+ 0xcf,0x86,0x55,0x04,0x01,0x00,0xd4,0x07,0x63,0xd8,0x43,0x01,0x00,0x93,0x13,0x52,
+ 0x04,0x01,0x00,0x91,0x0b,0x10,0x04,0x01,0x00,0x01,0xff,0xce,0xbc,0x00,0x01,0x00,
+ 0x01,0x00,0xcf,0x86,0xe5,0xb3,0x44,0xd4,0x7f,0xd3,0x3f,0xd2,0x20,0xd1,0x10,0x10,
+ 0x08,0x01,0xff,0x61,0xcc,0x80,0x00,0x01,0xff,0x61,0xcc,0x81,0x00,0x10,0x08,0x01,
+ 0xff,0x61,0xcc,0x82,0x00,0x01,0xff,0x61,0xcc,0x83,0x00,0xd1,0x10,0x10,0x08,0x01,
+ 0xff,0x61,0xcc,0x88,0x00,0x01,0xff,0x61,0xcc,0x8a,0x00,0x10,0x07,0x01,0xff,0xc3,
+ 0xa6,0x00,0x01,0xff,0x63,0xcc,0xa7,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,
+ 0x65,0xcc,0x80,0x00,0x01,0xff,0x65,0xcc,0x81,0x00,0x10,0x08,0x01,0xff,0x65,0xcc,
+ 0x82,0x00,0x01,0xff,0x65,0xcc,0x88,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x69,0xcc,
+ 0x80,0x00,0x01,0xff,0x69,0xcc,0x81,0x00,0x10,0x08,0x01,0xff,0x69,0xcc,0x82,0x00,
+ 0x01,0xff,0x69,0xcc,0x88,0x00,0xd3,0x3b,0xd2,0x1f,0xd1,0x0f,0x10,0x07,0x01,0xff,
+ 0xc3,0xb0,0x00,0x01,0xff,0x6e,0xcc,0x83,0x00,0x10,0x08,0x01,0xff,0x6f,0xcc,0x80,
+ 0x00,0x01,0xff,0x6f,0xcc,0x81,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x6f,0xcc,0x82,
+ 0x00,0x01,0xff,0x6f,0xcc,0x83,0x00,0x10,0x08,0x01,0xff,0x6f,0xcc,0x88,0x00,0x01,
+ 0x00,0xd2,0x1f,0xd1,0x0f,0x10,0x07,0x01,0xff,0xc3,0xb8,0x00,0x01,0xff,0x75,0xcc,
+ 0x80,0x00,0x10,0x08,0x01,0xff,0x75,0xcc,0x81,0x00,0x01,0xff,0x75,0xcc,0x82,0x00,
+ 0xd1,0x10,0x10,0x08,0x01,0xff,0x75,0xcc,0x88,0x00,0x01,0xff,0x79,0xcc,0x81,0x00,
+ 0x10,0x07,0x01,0xff,0xc3,0xbe,0x00,0x01,0xff,0x73,0x73,0x00,0xe1,0xd4,0x03,0xe0,
+ 0xeb,0x01,0xcf,0x86,0xd5,0xfb,0xd4,0x80,0xd3,0x40,0xd2,0x20,0xd1,0x10,0x10,0x08,
+ 0x01,0xff,0x61,0xcc,0x84,0x00,0x01,0xff,0x61,0xcc,0x84,0x00,0x10,0x08,0x01,0xff,
+ 0x61,0xcc,0x86,0x00,0x01,0xff,0x61,0xcc,0x86,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,
+ 0x61,0xcc,0xa8,0x00,0x01,0xff,0x61,0xcc,0xa8,0x00,0x10,0x08,0x01,0xff,0x63,0xcc,
+ 0x81,0x00,0x01,0xff,0x63,0xcc,0x81,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,
+ 0x63,0xcc,0x82,0x00,0x01,0xff,0x63,0xcc,0x82,0x00,0x10,0x08,0x01,0xff,0x63,0xcc,
+ 0x87,0x00,0x01,0xff,0x63,0xcc,0x87,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x63,0xcc,
+ 0x8c,0x00,0x01,0xff,0x63,0xcc,0x8c,0x00,0x10,0x08,0x01,0xff,0x64,0xcc,0x8c,0x00,
+ 0x01,0xff,0x64,0xcc,0x8c,0x00,0xd3,0x3b,0xd2,0x1b,0xd1,0x0b,0x10,0x07,0x01,0xff,
+ 0xc4,0x91,0x00,0x01,0x00,0x10,0x08,0x01,0xff,0x65,0xcc,0x84,0x00,0x01,0xff,0x65,
+ 0xcc,0x84,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x65,0xcc,0x86,0x00,0x01,0xff,0x65,
+ 0xcc,0x86,0x00,0x10,0x08,0x01,0xff,0x65,0xcc,0x87,0x00,0x01,0xff,0x65,0xcc,0x87,
+ 0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x65,0xcc,0xa8,0x00,0x01,0xff,0x65,
+ 0xcc,0xa8,0x00,0x10,0x08,0x01,0xff,0x65,0xcc,0x8c,0x00,0x01,0xff,0x65,0xcc,0x8c,
+ 0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x67,0xcc,0x82,0x00,0x01,0xff,0x67,0xcc,0x82,
+ 0x00,0x10,0x08,0x01,0xff,0x67,0xcc,0x86,0x00,0x01,0xff,0x67,0xcc,0x86,0x00,0xd4,
+ 0x7b,0xd3,0x3b,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x67,0xcc,0x87,0x00,0x01,
+ 0xff,0x67,0xcc,0x87,0x00,0x10,0x08,0x01,0xff,0x67,0xcc,0xa7,0x00,0x01,0xff,0x67,
+ 0xcc,0xa7,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x68,0xcc,0x82,0x00,0x01,0xff,0x68,
+ 0xcc,0x82,0x00,0x10,0x07,0x01,0xff,0xc4,0xa7,0x00,0x01,0x00,0xd2,0x20,0xd1,0x10,
+ 0x10,0x08,0x01,0xff,0x69,0xcc,0x83,0x00,0x01,0xff,0x69,0xcc,0x83,0x00,0x10,0x08,
+ 0x01,0xff,0x69,0xcc,0x84,0x00,0x01,0xff,0x69,0xcc,0x84,0x00,0xd1,0x10,0x10,0x08,
+ 0x01,0xff,0x69,0xcc,0x86,0x00,0x01,0xff,0x69,0xcc,0x86,0x00,0x10,0x08,0x01,0xff,
+ 0x69,0xcc,0xa8,0x00,0x01,0xff,0x69,0xcc,0xa8,0x00,0xd3,0x37,0xd2,0x17,0xd1,0x0c,
+ 0x10,0x08,0x01,0xff,0x69,0xcc,0x87,0x00,0x01,0x00,0x10,0x07,0x01,0xff,0xc4,0xb3,
+ 0x00,0x01,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x6a,0xcc,0x82,0x00,0x01,0xff,0x6a,
+ 0xcc,0x82,0x00,0x10,0x08,0x01,0xff,0x6b,0xcc,0xa7,0x00,0x01,0xff,0x6b,0xcc,0xa7,
+ 0x00,0xd2,0x1c,0xd1,0x0c,0x10,0x04,0x01,0x00,0x01,0xff,0x6c,0xcc,0x81,0x00,0x10,
+ 0x08,0x01,0xff,0x6c,0xcc,0x81,0x00,0x01,0xff,0x6c,0xcc,0xa7,0x00,0xd1,0x10,0x10,
+ 0x08,0x01,0xff,0x6c,0xcc,0xa7,0x00,0x01,0xff,0x6c,0xcc,0x8c,0x00,0x10,0x08,0x01,
+ 0xff,0x6c,0xcc,0x8c,0x00,0x01,0xff,0xc5,0x80,0x00,0xcf,0x86,0xd5,0xed,0xd4,0x72,
+ 0xd3,0x37,0xd2,0x17,0xd1,0x0b,0x10,0x04,0x01,0x00,0x01,0xff,0xc5,0x82,0x00,0x10,
+ 0x04,0x01,0x00,0x01,0xff,0x6e,0xcc,0x81,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x6e,
+ 0xcc,0x81,0x00,0x01,0xff,0x6e,0xcc,0xa7,0x00,0x10,0x08,0x01,0xff,0x6e,0xcc,0xa7,
+ 0x00,0x01,0xff,0x6e,0xcc,0x8c,0x00,0xd2,0x1b,0xd1,0x10,0x10,0x08,0x01,0xff,0x6e,
+ 0xcc,0x8c,0x00,0x01,0xff,0xca,0xbc,0x6e,0x00,0x10,0x07,0x01,0xff,0xc5,0x8b,0x00,
+ 0x01,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x6f,0xcc,0x84,0x00,0x01,0xff,0x6f,0xcc,
+ 0x84,0x00,0x10,0x08,0x01,0xff,0x6f,0xcc,0x86,0x00,0x01,0xff,0x6f,0xcc,0x86,0x00,
+ 0xd3,0x3b,0xd2,0x1b,0xd1,0x10,0x10,0x08,0x01,0xff,0x6f,0xcc,0x8b,0x00,0x01,0xff,
+ 0x6f,0xcc,0x8b,0x00,0x10,0x07,0x01,0xff,0xc5,0x93,0x00,0x01,0x00,0xd1,0x10,0x10,
+ 0x08,0x01,0xff,0x72,0xcc,0x81,0x00,0x01,0xff,0x72,0xcc,0x81,0x00,0x10,0x08,0x01,
+ 0xff,0x72,0xcc,0xa7,0x00,0x01,0xff,0x72,0xcc,0xa7,0x00,0xd2,0x20,0xd1,0x10,0x10,
+ 0x08,0x01,0xff,0x72,0xcc,0x8c,0x00,0x01,0xff,0x72,0xcc,0x8c,0x00,0x10,0x08,0x01,
+ 0xff,0x73,0xcc,0x81,0x00,0x01,0xff,0x73,0xcc,0x81,0x00,0xd1,0x10,0x10,0x08,0x01,
+ 0xff,0x73,0xcc,0x82,0x00,0x01,0xff,0x73,0xcc,0x82,0x00,0x10,0x08,0x01,0xff,0x73,
+ 0xcc,0xa7,0x00,0x01,0xff,0x73,0xcc,0xa7,0x00,0xd4,0x7b,0xd3,0x3b,0xd2,0x20,0xd1,
+ 0x10,0x10,0x08,0x01,0xff,0x73,0xcc,0x8c,0x00,0x01,0xff,0x73,0xcc,0x8c,0x00,0x10,
+ 0x08,0x01,0xff,0x74,0xcc,0xa7,0x00,0x01,0xff,0x74,0xcc,0xa7,0x00,0xd1,0x10,0x10,
+ 0x08,0x01,0xff,0x74,0xcc,0x8c,0x00,0x01,0xff,0x74,0xcc,0x8c,0x00,0x10,0x07,0x01,
+ 0xff,0xc5,0xa7,0x00,0x01,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x75,0xcc,
+ 0x83,0x00,0x01,0xff,0x75,0xcc,0x83,0x00,0x10,0x08,0x01,0xff,0x75,0xcc,0x84,0x00,
+ 0x01,0xff,0x75,0xcc,0x84,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x75,0xcc,0x86,0x00,
+ 0x01,0xff,0x75,0xcc,0x86,0x00,0x10,0x08,0x01,0xff,0x75,0xcc,0x8a,0x00,0x01,0xff,
+ 0x75,0xcc,0x8a,0x00,0xd3,0x40,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x75,0xcc,
+ 0x8b,0x00,0x01,0xff,0x75,0xcc,0x8b,0x00,0x10,0x08,0x01,0xff,0x75,0xcc,0xa8,0x00,
+ 0x01,0xff,0x75,0xcc,0xa8,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x77,0xcc,0x82,0x00,
+ 0x01,0xff,0x77,0xcc,0x82,0x00,0x10,0x08,0x01,0xff,0x79,0xcc,0x82,0x00,0x01,0xff,
+ 0x79,0xcc,0x82,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x79,0xcc,0x88,0x00,
+ 0x01,0xff,0x7a,0xcc,0x81,0x00,0x10,0x08,0x01,0xff,0x7a,0xcc,0x81,0x00,0x01,0xff,
+ 0x7a,0xcc,0x87,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x7a,0xcc,0x87,0x00,0x01,0xff,
+ 0x7a,0xcc,0x8c,0x00,0x10,0x08,0x01,0xff,0x7a,0xcc,0x8c,0x00,0x01,0xff,0x73,0x00,
+ 0xe0,0x65,0x01,0xcf,0x86,0xd5,0xb4,0xd4,0x5a,0xd3,0x2f,0xd2,0x16,0xd1,0x0b,0x10,
+ 0x04,0x01,0x00,0x01,0xff,0xc9,0x93,0x00,0x10,0x07,0x01,0xff,0xc6,0x83,0x00,0x01,
+ 0x00,0xd1,0x0b,0x10,0x07,0x01,0xff,0xc6,0x85,0x00,0x01,0x00,0x10,0x07,0x01,0xff,
+ 0xc9,0x94,0x00,0x01,0xff,0xc6,0x88,0x00,0xd2,0x19,0xd1,0x0b,0x10,0x04,0x01,0x00,
+ 0x01,0xff,0xc9,0x96,0x00,0x10,0x07,0x01,0xff,0xc9,0x97,0x00,0x01,0xff,0xc6,0x8c,
+ 0x00,0x51,0x04,0x01,0x00,0x10,0x07,0x01,0xff,0xc7,0x9d,0x00,0x01,0xff,0xc9,0x99,
+ 0x00,0xd3,0x32,0xd2,0x19,0xd1,0x0e,0x10,0x07,0x01,0xff,0xc9,0x9b,0x00,0x01,0xff,
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+ 0x01,0xff,0xc9,0xa3,0x00,0x01,0x00,0x10,0x07,0x01,0xff,0xc9,0xa9,0x00,0x01,0xff,
+ 0xc9,0xa8,0x00,0xd2,0x0f,0x91,0x0b,0x10,0x07,0x01,0xff,0xc6,0x99,0x00,0x01,0x00,
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+ 0x10,0x10,0x08,0x01,0xff,0x6f,0xcc,0x9b,0x00,0x01,0xff,0x6f,0xcc,0x9b,0x00,0x10,
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+ 0x00,0x01,0x00,0x10,0x07,0x01,0xff,0xca,0x80,0x00,0x01,0xff,0xc6,0xa8,0x00,0xd2,
+ 0x0f,0x91,0x0b,0x10,0x04,0x01,0x00,0x01,0xff,0xca,0x83,0x00,0x01,0x00,0xd1,0x0b,
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+ 0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x69,0xcc,0x8c,0x00,0x01,0xff,0x6f,0xcc,0x8c,
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+ 0x12,0x10,0x08,0x01,0xff,0x75,0xcc,0x8c,0x00,0x01,0xff,0x75,0xcc,0x88,0xcc,0x84,
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+ 0xff,0x75,0xcc,0x88,0xcc,0x80,0x00,0x01,0x00,0x10,0x0a,0x01,0xff,0x61,0xcc,0x88,
+ 0xcc,0x84,0x00,0x01,0xff,0x61,0xcc,0x88,0xcc,0x84,0x00,0xd4,0x87,0xd3,0x41,0xd2,
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+ 0xcc,0x87,0xcc,0x84,0x00,0x10,0x09,0x01,0xff,0xc3,0xa6,0xcc,0x84,0x00,0x01,0xff,
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+ 0x84,0x00,0x10,0x09,0x01,0xff,0xca,0x92,0xcc,0x8c,0x00,0x01,0xff,0xca,0x92,0xcc,
+ 0x8c,0x00,0xd3,0x38,0xd2,0x1a,0xd1,0x0f,0x10,0x08,0x01,0xff,0x6a,0xcc,0x8c,0x00,
+ 0x01,0xff,0xc7,0xb3,0x00,0x10,0x07,0x01,0xff,0xc7,0xb3,0x00,0x01,0x00,0xd1,0x10,
+ 0x10,0x08,0x01,0xff,0x67,0xcc,0x81,0x00,0x01,0xff,0x67,0xcc,0x81,0x00,0x10,0x07,
+ 0x04,0xff,0xc6,0x95,0x00,0x04,0xff,0xc6,0xbf,0x00,0xd2,0x24,0xd1,0x10,0x10,0x08,
+ 0x04,0xff,0x6e,0xcc,0x80,0x00,0x04,0xff,0x6e,0xcc,0x80,0x00,0x10,0x0a,0x01,0xff,
+ 0x61,0xcc,0x8a,0xcc,0x81,0x00,0x01,0xff,0x61,0xcc,0x8a,0xcc,0x81,0x00,0xd1,0x12,
+ 0x10,0x09,0x01,0xff,0xc3,0xa6,0xcc,0x81,0x00,0x01,0xff,0xc3,0xa6,0xcc,0x81,0x00,
+ 0x10,0x09,0x01,0xff,0xc3,0xb8,0xcc,0x81,0x00,0x01,0xff,0xc3,0xb8,0xcc,0x81,0x00,
+ 0xe2,0x31,0x02,0xe1,0xc3,0x44,0xe0,0xc8,0x01,0xcf,0x86,0xd5,0xfb,0xd4,0x80,0xd3,
+ 0x40,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x61,0xcc,0x8f,0x00,0x01,0xff,0x61,
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+ 0x00,0x10,0x08,0x01,0xff,0x65,0xcc,0x91,0x00,0x01,0xff,0x65,0xcc,0x91,0x00,0xd2,
+ 0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x69,0xcc,0x8f,0x00,0x01,0xff,0x69,0xcc,0x8f,
+ 0x00,0x10,0x08,0x01,0xff,0x69,0xcc,0x91,0x00,0x01,0xff,0x69,0xcc,0x91,0x00,0xd1,
+ 0x10,0x10,0x08,0x01,0xff,0x6f,0xcc,0x8f,0x00,0x01,0xff,0x6f,0xcc,0x8f,0x00,0x10,
+ 0x08,0x01,0xff,0x6f,0xcc,0x91,0x00,0x01,0xff,0x6f,0xcc,0x91,0x00,0xd3,0x40,0xd2,
+ 0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x72,0xcc,0x8f,0x00,0x01,0xff,0x72,0xcc,0x8f,
+ 0x00,0x10,0x08,0x01,0xff,0x72,0xcc,0x91,0x00,0x01,0xff,0x72,0xcc,0x91,0x00,0xd1,
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+ 0x08,0x01,0xff,0x75,0xcc,0x91,0x00,0x01,0xff,0x75,0xcc,0x91,0x00,0xd2,0x20,0xd1,
+ 0x10,0x10,0x08,0x04,0xff,0x73,0xcc,0xa6,0x00,0x04,0xff,0x73,0xcc,0xa6,0x00,0x10,
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+ 0x06,0xff,0xc6,0x9e,0x00,0x07,0x00,0x10,0x07,0x04,0xff,0xc8,0xa3,0x00,0x04,0x00,
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+ 0xff,0x65,0xcc,0xa7,0x00,0x04,0xff,0x65,0xcc,0xa7,0x00,0x10,0x0a,0x04,0xff,0x6f,
+ 0xcc,0x88,0xcc,0x84,0x00,0x04,0xff,0x6f,0xcc,0x88,0xcc,0x84,0x00,0xd1,0x14,0x10,
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+ 0x00,0x10,0x08,0x04,0xff,0x6f,0xcc,0x87,0x00,0x04,0xff,0x6f,0xcc,0x87,0x00,0xd3,
+ 0x27,0xe2,0x21,0x43,0xd1,0x14,0x10,0x0a,0x04,0xff,0x6f,0xcc,0x87,0xcc,0x84,0x00,
+ 0x04,0xff,0x6f,0xcc,0x87,0xcc,0x84,0x00,0x10,0x08,0x04,0xff,0x79,0xcc,0x84,0x00,
+ 0x04,0xff,0x79,0xcc,0x84,0x00,0xd2,0x13,0x51,0x04,0x08,0x00,0x10,0x08,0x08,0xff,
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+ 0xff,0xc6,0x9a,0x00,0x10,0x08,0x08,0xff,0xe2,0xb1,0xa6,0x00,0x08,0x00,0xcf,0x86,
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+ 0xc9,0x82,0x00,0x10,0x04,0x09,0x00,0x09,0xff,0xc6,0x80,0x00,0xd1,0x0e,0x10,0x07,
+ 0x09,0xff,0xca,0x89,0x00,0x09,0xff,0xca,0x8c,0x00,0x10,0x07,0x09,0xff,0xc9,0x87,
+ 0x00,0x09,0x00,0xd2,0x16,0xd1,0x0b,0x10,0x07,0x09,0xff,0xc9,0x89,0x00,0x09,0x00,
+ 0x10,0x07,0x09,0xff,0xc9,0x8b,0x00,0x09,0x00,0xd1,0x0b,0x10,0x07,0x09,0xff,0xc9,
+ 0x8d,0x00,0x09,0x00,0x10,0x07,0x09,0xff,0xc9,0x8f,0x00,0x09,0x00,0x01,0x00,0x01,
+ 0x00,0xd1,0x8b,0xd0,0x0c,0xcf,0x86,0xe5,0x10,0x43,0x64,0xef,0x42,0x01,0xe6,0xcf,
+ 0x86,0xd5,0x2a,0xe4,0x99,0x43,0xe3,0x7f,0x43,0xd2,0x11,0xe1,0x5e,0x43,0x10,0x07,
+ 0x01,0xff,0xcc,0x80,0x00,0x01,0xff,0xcc,0x81,0x00,0xe1,0x65,0x43,0x10,0x09,0x01,
+ 0xff,0xcc,0x88,0xcc,0x81,0x00,0x01,0xff,0xce,0xb9,0x00,0xd4,0x0f,0x93,0x0b,0x92,
+ 0x07,0x61,0xab,0x43,0x01,0xea,0x06,0xe6,0x06,0xe6,0xd3,0x2c,0xd2,0x16,0xd1,0x0b,
+ 0x10,0x07,0x0a,0xff,0xcd,0xb1,0x00,0x0a,0x00,0x10,0x07,0x0a,0xff,0xcd,0xb3,0x00,
+ 0x0a,0x00,0xd1,0x0b,0x10,0x07,0x01,0xff,0xca,0xb9,0x00,0x01,0x00,0x10,0x07,0x0a,
+ 0xff,0xcd,0xb7,0x00,0x0a,0x00,0xd2,0x07,0x61,0x97,0x43,0x00,0x00,0x51,0x04,0x09,
+ 0x00,0x10,0x06,0x01,0xff,0x3b,0x00,0x10,0xff,0xcf,0xb3,0x00,0xe0,0x31,0x01,0xcf,
+ 0x86,0xd5,0xd3,0xd4,0x5f,0xd3,0x21,0x52,0x04,0x00,0x00,0xd1,0x0d,0x10,0x04,0x01,
+ 0x00,0x01,0xff,0xc2,0xa8,0xcc,0x81,0x00,0x10,0x09,0x01,0xff,0xce,0xb1,0xcc,0x81,
+ 0x00,0x01,0xff,0xc2,0xb7,0x00,0xd2,0x1f,0xd1,0x12,0x10,0x09,0x01,0xff,0xce,0xb5,
+ 0xcc,0x81,0x00,0x01,0xff,0xce,0xb7,0xcc,0x81,0x00,0x10,0x09,0x01,0xff,0xce,0xb9,
+ 0xcc,0x81,0x00,0x00,0x00,0xd1,0x0d,0x10,0x09,0x01,0xff,0xce,0xbf,0xcc,0x81,0x00,
+ 0x00,0x00,0x10,0x09,0x01,0xff,0xcf,0x85,0xcc,0x81,0x00,0x01,0xff,0xcf,0x89,0xcc,
+ 0x81,0x00,0xd3,0x3c,0xd2,0x20,0xd1,0x12,0x10,0x0b,0x01,0xff,0xce,0xb9,0xcc,0x88,
+ 0xcc,0x81,0x00,0x01,0xff,0xce,0xb1,0x00,0x10,0x07,0x01,0xff,0xce,0xb2,0x00,0x01,
+ 0xff,0xce,0xb3,0x00,0xd1,0x0e,0x10,0x07,0x01,0xff,0xce,0xb4,0x00,0x01,0xff,0xce,
+ 0xb5,0x00,0x10,0x07,0x01,0xff,0xce,0xb6,0x00,0x01,0xff,0xce,0xb7,0x00,0xd2,0x1c,
+ 0xd1,0x0e,0x10,0x07,0x01,0xff,0xce,0xb8,0x00,0x01,0xff,0xce,0xb9,0x00,0x10,0x07,
+ 0x01,0xff,0xce,0xba,0x00,0x01,0xff,0xce,0xbb,0x00,0xd1,0x0e,0x10,0x07,0x01,0xff,
+ 0xce,0xbc,0x00,0x01,0xff,0xce,0xbd,0x00,0x10,0x07,0x01,0xff,0xce,0xbe,0x00,0x01,
+ 0xff,0xce,0xbf,0x00,0xe4,0x85,0x43,0xd3,0x35,0xd2,0x19,0xd1,0x0e,0x10,0x07,0x01,
+ 0xff,0xcf,0x80,0x00,0x01,0xff,0xcf,0x81,0x00,0x10,0x04,0x00,0x00,0x01,0xff,0xcf,
+ 0x83,0x00,0xd1,0x0e,0x10,0x07,0x01,0xff,0xcf,0x84,0x00,0x01,0xff,0xcf,0x85,0x00,
+ 0x10,0x07,0x01,0xff,0xcf,0x86,0x00,0x01,0xff,0xcf,0x87,0x00,0xe2,0x2b,0x43,0xd1,
+ 0x0e,0x10,0x07,0x01,0xff,0xcf,0x88,0x00,0x01,0xff,0xcf,0x89,0x00,0x10,0x09,0x01,
+ 0xff,0xce,0xb9,0xcc,0x88,0x00,0x01,0xff,0xcf,0x85,0xcc,0x88,0x00,0xcf,0x86,0xd5,
+ 0x94,0xd4,0x3c,0xd3,0x13,0x92,0x0f,0x51,0x04,0x01,0x00,0x10,0x07,0x01,0xff,0xcf,
+ 0x83,0x00,0x01,0x00,0x01,0x00,0xd2,0x07,0x61,0x3a,0x43,0x01,0x00,0xd1,0x12,0x10,
+ 0x09,0x01,0xff,0xce,0xbf,0xcc,0x81,0x00,0x01,0xff,0xcf,0x85,0xcc,0x81,0x00,0x10,
+ 0x09,0x01,0xff,0xcf,0x89,0xcc,0x81,0x00,0x0a,0xff,0xcf,0x97,0x00,0xd3,0x2c,0xd2,
+ 0x11,0xe1,0x46,0x43,0x10,0x07,0x01,0xff,0xce,0xb2,0x00,0x01,0xff,0xce,0xb8,0x00,
+ 0xd1,0x10,0x10,0x09,0x01,0xff,0xcf,0x92,0xcc,0x88,0x00,0x01,0xff,0xcf,0x86,0x00,
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+ 0xff,0xcf,0x99,0x00,0x06,0x00,0x10,0x07,0x01,0xff,0xcf,0x9b,0x00,0x04,0x00,0xd1,
+ 0x0b,0x10,0x07,0x01,0xff,0xcf,0x9d,0x00,0x04,0x00,0x10,0x07,0x01,0xff,0xcf,0x9f,
+ 0x00,0x04,0x00,0xd4,0x58,0xd3,0x2c,0xd2,0x16,0xd1,0x0b,0x10,0x07,0x01,0xff,0xcf,
+ 0xa1,0x00,0x04,0x00,0x10,0x07,0x01,0xff,0xcf,0xa3,0x00,0x01,0x00,0xd1,0x0b,0x10,
+ 0x07,0x01,0xff,0xcf,0xa5,0x00,0x01,0x00,0x10,0x07,0x01,0xff,0xcf,0xa7,0x00,0x01,
+ 0x00,0xd2,0x16,0xd1,0x0b,0x10,0x07,0x01,0xff,0xcf,0xa9,0x00,0x01,0x00,0x10,0x07,
+ 0x01,0xff,0xcf,0xab,0x00,0x01,0x00,0xd1,0x0b,0x10,0x07,0x01,0xff,0xcf,0xad,0x00,
+ 0x01,0x00,0x10,0x07,0x01,0xff,0xcf,0xaf,0x00,0x01,0x00,0xd3,0x2b,0xd2,0x12,0x91,
+ 0x0e,0x10,0x07,0x01,0xff,0xce,0xba,0x00,0x01,0xff,0xcf,0x81,0x00,0x01,0x00,0xd1,
+ 0x0e,0x10,0x07,0x05,0xff,0xce,0xb8,0x00,0x05,0xff,0xce,0xb5,0x00,0x10,0x04,0x06,
+ 0x00,0x07,0xff,0xcf,0xb8,0x00,0xd2,0x16,0xd1,0x0b,0x10,0x04,0x07,0x00,0x07,0xff,
+ 0xcf,0xb2,0x00,0x10,0x07,0x07,0xff,0xcf,0xbb,0x00,0x07,0x00,0xd1,0x0b,0x10,0x04,
+ 0x08,0x00,0x08,0xff,0xcd,0xbb,0x00,0x10,0x07,0x08,0xff,0xcd,0xbc,0x00,0x08,0xff,
+ 0xcd,0xbd,0x00,0xe3,0xed,0x46,0xe2,0x3d,0x05,0xe1,0x27,0x02,0xe0,0x66,0x01,0xcf,
+ 0x86,0xd5,0xf0,0xd4,0x7e,0xd3,0x40,0xd2,0x22,0xd1,0x12,0x10,0x09,0x04,0xff,0xd0,
+ 0xb5,0xcc,0x80,0x00,0x01,0xff,0xd0,0xb5,0xcc,0x88,0x00,0x10,0x07,0x01,0xff,0xd1,
+ 0x92,0x00,0x01,0xff,0xd0,0xb3,0xcc,0x81,0x00,0xd1,0x0e,0x10,0x07,0x01,0xff,0xd1,
+ 0x94,0x00,0x01,0xff,0xd1,0x95,0x00,0x10,0x07,0x01,0xff,0xd1,0x96,0x00,0x01,0xff,
+ 0xd1,0x96,0xcc,0x88,0x00,0xd2,0x1c,0xd1,0x0e,0x10,0x07,0x01,0xff,0xd1,0x98,0x00,
+ 0x01,0xff,0xd1,0x99,0x00,0x10,0x07,0x01,0xff,0xd1,0x9a,0x00,0x01,0xff,0xd1,0x9b,
+ 0x00,0xd1,0x12,0x10,0x09,0x01,0xff,0xd0,0xba,0xcc,0x81,0x00,0x04,0xff,0xd0,0xb8,
+ 0xcc,0x80,0x00,0x10,0x09,0x01,0xff,0xd1,0x83,0xcc,0x86,0x00,0x01,0xff,0xd1,0x9f,
+ 0x00,0xd3,0x38,0xd2,0x1c,0xd1,0x0e,0x10,0x07,0x01,0xff,0xd0,0xb0,0x00,0x01,0xff,
+ 0xd0,0xb1,0x00,0x10,0x07,0x01,0xff,0xd0,0xb2,0x00,0x01,0xff,0xd0,0xb3,0x00,0xd1,
+ 0x0e,0x10,0x07,0x01,0xff,0xd0,0xb4,0x00,0x01,0xff,0xd0,0xb5,0x00,0x10,0x07,0x01,
+ 0xff,0xd0,0xb6,0x00,0x01,0xff,0xd0,0xb7,0x00,0xd2,0x1e,0xd1,0x10,0x10,0x07,0x01,
+ 0xff,0xd0,0xb8,0x00,0x01,0xff,0xd0,0xb8,0xcc,0x86,0x00,0x10,0x07,0x01,0xff,0xd0,
+ 0xba,0x00,0x01,0xff,0xd0,0xbb,0x00,0xd1,0x0e,0x10,0x07,0x01,0xff,0xd0,0xbc,0x00,
+ 0x01,0xff,0xd0,0xbd,0x00,0x10,0x07,0x01,0xff,0xd0,0xbe,0x00,0x01,0xff,0xd0,0xbf,
+ 0x00,0xe4,0x25,0x42,0xd3,0x38,0xd2,0x1c,0xd1,0x0e,0x10,0x07,0x01,0xff,0xd1,0x80,
+ 0x00,0x01,0xff,0xd1,0x81,0x00,0x10,0x07,0x01,0xff,0xd1,0x82,0x00,0x01,0xff,0xd1,
+ 0x83,0x00,0xd1,0x0e,0x10,0x07,0x01,0xff,0xd1,0x84,0x00,0x01,0xff,0xd1,0x85,0x00,
+ 0x10,0x07,0x01,0xff,0xd1,0x86,0x00,0x01,0xff,0xd1,0x87,0x00,0xd2,0x1c,0xd1,0x0e,
+ 0x10,0x07,0x01,0xff,0xd1,0x88,0x00,0x01,0xff,0xd1,0x89,0x00,0x10,0x07,0x01,0xff,
+ 0xd1,0x8a,0x00,0x01,0xff,0xd1,0x8b,0x00,0xd1,0x0e,0x10,0x07,0x01,0xff,0xd1,0x8c,
+ 0x00,0x01,0xff,0xd1,0x8d,0x00,0x10,0x07,0x01,0xff,0xd1,0x8e,0x00,0x01,0xff,0xd1,
+ 0x8f,0x00,0xcf,0x86,0xd5,0x07,0x64,0xcf,0x41,0x01,0x00,0xd4,0x58,0xd3,0x2c,0xd2,
+ 0x16,0xd1,0x0b,0x10,0x07,0x01,0xff,0xd1,0xa1,0x00,0x01,0x00,0x10,0x07,0x01,0xff,
+ 0xd1,0xa3,0x00,0x01,0x00,0xd1,0x0b,0x10,0x07,0x01,0xff,0xd1,0xa5,0x00,0x01,0x00,
+ 0x10,0x07,0x01,0xff,0xd1,0xa7,0x00,0x01,0x00,0xd2,0x16,0xd1,0x0b,0x10,0x07,0x01,
+ 0xff,0xd1,0xa9,0x00,0x01,0x00,0x10,0x07,0x01,0xff,0xd1,0xab,0x00,0x01,0x00,0xd1,
+ 0x0b,0x10,0x07,0x01,0xff,0xd1,0xad,0x00,0x01,0x00,0x10,0x07,0x01,0xff,0xd1,0xaf,
+ 0x00,0x01,0x00,0xd3,0x33,0xd2,0x16,0xd1,0x0b,0x10,0x07,0x01,0xff,0xd1,0xb1,0x00,
+ 0x01,0x00,0x10,0x07,0x01,0xff,0xd1,0xb3,0x00,0x01,0x00,0xd1,0x0b,0x10,0x07,0x01,
+ 0xff,0xd1,0xb5,0x00,0x01,0x00,0x10,0x09,0x01,0xff,0xd1,0xb5,0xcc,0x8f,0x00,0x01,
+ 0xff,0xd1,0xb5,0xcc,0x8f,0x00,0xd2,0x16,0xd1,0x0b,0x10,0x07,0x01,0xff,0xd1,0xb9,
+ 0x00,0x01,0x00,0x10,0x07,0x01,0xff,0xd1,0xbb,0x00,0x01,0x00,0xd1,0x0b,0x10,0x07,
+ 0x01,0xff,0xd1,0xbd,0x00,0x01,0x00,0x10,0x07,0x01,0xff,0xd1,0xbf,0x00,0x01,0x00,
+ 0xe0,0x41,0x01,0xcf,0x86,0xd5,0x8e,0xd4,0x36,0xd3,0x11,0xe2,0x91,0x41,0xe1,0x88,
+ 0x41,0x10,0x07,0x01,0xff,0xd2,0x81,0x00,0x01,0x00,0xd2,0x0f,0x51,0x04,0x04,0x00,
+ 0x10,0x07,0x06,0xff,0xd2,0x8b,0x00,0x06,0x00,0xd1,0x0b,0x10,0x07,0x04,0xff,0xd2,
+ 0x8d,0x00,0x04,0x00,0x10,0x07,0x04,0xff,0xd2,0x8f,0x00,0x04,0x00,0xd3,0x2c,0xd2,
+ 0x16,0xd1,0x0b,0x10,0x07,0x01,0xff,0xd2,0x91,0x00,0x01,0x00,0x10,0x07,0x01,0xff,
+ 0xd2,0x93,0x00,0x01,0x00,0xd1,0x0b,0x10,0x07,0x01,0xff,0xd2,0x95,0x00,0x01,0x00,
+ 0x10,0x07,0x01,0xff,0xd2,0x97,0x00,0x01,0x00,0xd2,0x16,0xd1,0x0b,0x10,0x07,0x01,
+ 0xff,0xd2,0x99,0x00,0x01,0x00,0x10,0x07,0x01,0xff,0xd2,0x9b,0x00,0x01,0x00,0xd1,
+ 0x0b,0x10,0x07,0x01,0xff,0xd2,0x9d,0x00,0x01,0x00,0x10,0x07,0x01,0xff,0xd2,0x9f,
+ 0x00,0x01,0x00,0xd4,0x58,0xd3,0x2c,0xd2,0x16,0xd1,0x0b,0x10,0x07,0x01,0xff,0xd2,
+ 0xa1,0x00,0x01,0x00,0x10,0x07,0x01,0xff,0xd2,0xa3,0x00,0x01,0x00,0xd1,0x0b,0x10,
+ 0x07,0x01,0xff,0xd2,0xa5,0x00,0x01,0x00,0x10,0x07,0x01,0xff,0xd2,0xa7,0x00,0x01,
+ 0x00,0xd2,0x16,0xd1,0x0b,0x10,0x07,0x01,0xff,0xd2,0xa9,0x00,0x01,0x00,0x10,0x07,
+ 0x01,0xff,0xd2,0xab,0x00,0x01,0x00,0xd1,0x0b,0x10,0x07,0x01,0xff,0xd2,0xad,0x00,
+ 0x01,0x00,0x10,0x07,0x01,0xff,0xd2,0xaf,0x00,0x01,0x00,0xd3,0x2c,0xd2,0x16,0xd1,
+ 0x0b,0x10,0x07,0x01,0xff,0xd2,0xb1,0x00,0x01,0x00,0x10,0x07,0x01,0xff,0xd2,0xb3,
+ 0x00,0x01,0x00,0xd1,0x0b,0x10,0x07,0x01,0xff,0xd2,0xb5,0x00,0x01,0x00,0x10,0x07,
+ 0x01,0xff,0xd2,0xb7,0x00,0x01,0x00,0xd2,0x16,0xd1,0x0b,0x10,0x07,0x01,0xff,0xd2,
+ 0xb9,0x00,0x01,0x00,0x10,0x07,0x01,0xff,0xd2,0xbb,0x00,0x01,0x00,0xd1,0x0b,0x10,
+ 0x07,0x01,0xff,0xd2,0xbd,0x00,0x01,0x00,0x10,0x07,0x01,0xff,0xd2,0xbf,0x00,0x01,
+ 0x00,0xcf,0x86,0xd5,0xdc,0xd4,0x5a,0xd3,0x36,0xd2,0x20,0xd1,0x10,0x10,0x07,0x01,
+ 0xff,0xd3,0x8f,0x00,0x01,0xff,0xd0,0xb6,0xcc,0x86,0x00,0x10,0x09,0x01,0xff,0xd0,
+ 0xb6,0xcc,0x86,0x00,0x01,0xff,0xd3,0x84,0x00,0xd1,0x0b,0x10,0x04,0x01,0x00,0x06,
+ 0xff,0xd3,0x86,0x00,0x10,0x04,0x06,0x00,0x01,0xff,0xd3,0x88,0x00,0xd2,0x16,0xd1,
+ 0x0b,0x10,0x04,0x01,0x00,0x06,0xff,0xd3,0x8a,0x00,0x10,0x04,0x06,0x00,0x01,0xff,
+ 0xd3,0x8c,0x00,0xe1,0x69,0x40,0x10,0x04,0x01,0x00,0x06,0xff,0xd3,0x8e,0x00,0xd3,
+ 0x41,0xd2,0x24,0xd1,0x12,0x10,0x09,0x01,0xff,0xd0,0xb0,0xcc,0x86,0x00,0x01,0xff,
+ 0xd0,0xb0,0xcc,0x86,0x00,0x10,0x09,0x01,0xff,0xd0,0xb0,0xcc,0x88,0x00,0x01,0xff,
+ 0xd0,0xb0,0xcc,0x88,0x00,0xd1,0x0b,0x10,0x07,0x01,0xff,0xd3,0x95,0x00,0x01,0x00,
+ 0x10,0x09,0x01,0xff,0xd0,0xb5,0xcc,0x86,0x00,0x01,0xff,0xd0,0xb5,0xcc,0x86,0x00,
+ 0xd2,0x1d,0xd1,0x0b,0x10,0x07,0x01,0xff,0xd3,0x99,0x00,0x01,0x00,0x10,0x09,0x01,
+ 0xff,0xd3,0x99,0xcc,0x88,0x00,0x01,0xff,0xd3,0x99,0xcc,0x88,0x00,0xd1,0x12,0x10,
+ 0x09,0x01,0xff,0xd0,0xb6,0xcc,0x88,0x00,0x01,0xff,0xd0,0xb6,0xcc,0x88,0x00,0x10,
+ 0x09,0x01,0xff,0xd0,0xb7,0xcc,0x88,0x00,0x01,0xff,0xd0,0xb7,0xcc,0x88,0x00,0xd4,
+ 0x82,0xd3,0x41,0xd2,0x1d,0xd1,0x0b,0x10,0x07,0x01,0xff,0xd3,0xa1,0x00,0x01,0x00,
+ 0x10,0x09,0x01,0xff,0xd0,0xb8,0xcc,0x84,0x00,0x01,0xff,0xd0,0xb8,0xcc,0x84,0x00,
+ 0xd1,0x12,0x10,0x09,0x01,0xff,0xd0,0xb8,0xcc,0x88,0x00,0x01,0xff,0xd0,0xb8,0xcc,
+ 0x88,0x00,0x10,0x09,0x01,0xff,0xd0,0xbe,0xcc,0x88,0x00,0x01,0xff,0xd0,0xbe,0xcc,
+ 0x88,0x00,0xd2,0x1d,0xd1,0x0b,0x10,0x07,0x01,0xff,0xd3,0xa9,0x00,0x01,0x00,0x10,
+ 0x09,0x01,0xff,0xd3,0xa9,0xcc,0x88,0x00,0x01,0xff,0xd3,0xa9,0xcc,0x88,0x00,0xd1,
+ 0x12,0x10,0x09,0x04,0xff,0xd1,0x8d,0xcc,0x88,0x00,0x04,0xff,0xd1,0x8d,0xcc,0x88,
+ 0x00,0x10,0x09,0x01,0xff,0xd1,0x83,0xcc,0x84,0x00,0x01,0xff,0xd1,0x83,0xcc,0x84,
+ 0x00,0xd3,0x41,0xd2,0x24,0xd1,0x12,0x10,0x09,0x01,0xff,0xd1,0x83,0xcc,0x88,0x00,
+ 0x01,0xff,0xd1,0x83,0xcc,0x88,0x00,0x10,0x09,0x01,0xff,0xd1,0x83,0xcc,0x8b,0x00,
+ 0x01,0xff,0xd1,0x83,0xcc,0x8b,0x00,0xd1,0x12,0x10,0x09,0x01,0xff,0xd1,0x87,0xcc,
+ 0x88,0x00,0x01,0xff,0xd1,0x87,0xcc,0x88,0x00,0x10,0x07,0x08,0xff,0xd3,0xb7,0x00,
+ 0x08,0x00,0xd2,0x1d,0xd1,0x12,0x10,0x09,0x01,0xff,0xd1,0x8b,0xcc,0x88,0x00,0x01,
+ 0xff,0xd1,0x8b,0xcc,0x88,0x00,0x10,0x07,0x09,0xff,0xd3,0xbb,0x00,0x09,0x00,0xd1,
+ 0x0b,0x10,0x07,0x09,0xff,0xd3,0xbd,0x00,0x09,0x00,0x10,0x07,0x09,0xff,0xd3,0xbf,
+ 0x00,0x09,0x00,0xe1,0x26,0x02,0xe0,0x78,0x01,0xcf,0x86,0xd5,0xb0,0xd4,0x58,0xd3,
+ 0x2c,0xd2,0x16,0xd1,0x0b,0x10,0x07,0x06,0xff,0xd4,0x81,0x00,0x06,0x00,0x10,0x07,
+ 0x06,0xff,0xd4,0x83,0x00,0x06,0x00,0xd1,0x0b,0x10,0x07,0x06,0xff,0xd4,0x85,0x00,
+ 0x06,0x00,0x10,0x07,0x06,0xff,0xd4,0x87,0x00,0x06,0x00,0xd2,0x16,0xd1,0x0b,0x10,
+ 0x07,0x06,0xff,0xd4,0x89,0x00,0x06,0x00,0x10,0x07,0x06,0xff,0xd4,0x8b,0x00,0x06,
+ 0x00,0xd1,0x0b,0x10,0x07,0x06,0xff,0xd4,0x8d,0x00,0x06,0x00,0x10,0x07,0x06,0xff,
+ 0xd4,0x8f,0x00,0x06,0x00,0xd3,0x2c,0xd2,0x16,0xd1,0x0b,0x10,0x07,0x09,0xff,0xd4,
+ 0x91,0x00,0x09,0x00,0x10,0x07,0x09,0xff,0xd4,0x93,0x00,0x09,0x00,0xd1,0x0b,0x10,
+ 0x07,0x0a,0xff,0xd4,0x95,0x00,0x0a,0x00,0x10,0x07,0x0a,0xff,0xd4,0x97,0x00,0x0a,
+ 0x00,0xd2,0x16,0xd1,0x0b,0x10,0x07,0x0a,0xff,0xd4,0x99,0x00,0x0a,0x00,0x10,0x07,
+ 0x0a,0xff,0xd4,0x9b,0x00,0x0a,0x00,0xd1,0x0b,0x10,0x07,0x0a,0xff,0xd4,0x9d,0x00,
+ 0x0a,0x00,0x10,0x07,0x0a,0xff,0xd4,0x9f,0x00,0x0a,0x00,0xd4,0x58,0xd3,0x2c,0xd2,
+ 0x16,0xd1,0x0b,0x10,0x07,0x0a,0xff,0xd4,0xa1,0x00,0x0a,0x00,0x10,0x07,0x0a,0xff,
+ 0xd4,0xa3,0x00,0x0a,0x00,0xd1,0x0b,0x10,0x07,0x0b,0xff,0xd4,0xa5,0x00,0x0b,0x00,
+ 0x10,0x07,0x0c,0xff,0xd4,0xa7,0x00,0x0c,0x00,0xd2,0x16,0xd1,0x0b,0x10,0x07,0x10,
+ 0xff,0xd4,0xa9,0x00,0x10,0x00,0x10,0x07,0x10,0xff,0xd4,0xab,0x00,0x10,0x00,0xd1,
+ 0x0b,0x10,0x07,0x10,0xff,0xd4,0xad,0x00,0x10,0x00,0x10,0x07,0x10,0xff,0xd4,0xaf,
+ 0x00,0x10,0x00,0xd3,0x35,0xd2,0x19,0xd1,0x0b,0x10,0x04,0x00,0x00,0x01,0xff,0xd5,
+ 0xa1,0x00,0x10,0x07,0x01,0xff,0xd5,0xa2,0x00,0x01,0xff,0xd5,0xa3,0x00,0xd1,0x0e,
+ 0x10,0x07,0x01,0xff,0xd5,0xa4,0x00,0x01,0xff,0xd5,0xa5,0x00,0x10,0x07,0x01,0xff,
+ 0xd5,0xa6,0x00,0x01,0xff,0xd5,0xa7,0x00,0xd2,0x1c,0xd1,0x0e,0x10,0x07,0x01,0xff,
+ 0xd5,0xa8,0x00,0x01,0xff,0xd5,0xa9,0x00,0x10,0x07,0x01,0xff,0xd5,0xaa,0x00,0x01,
+ 0xff,0xd5,0xab,0x00,0xd1,0x0e,0x10,0x07,0x01,0xff,0xd5,0xac,0x00,0x01,0xff,0xd5,
+ 0xad,0x00,0x10,0x07,0x01,0xff,0xd5,0xae,0x00,0x01,0xff,0xd5,0xaf,0x00,0xcf,0x86,
+ 0xe5,0x08,0x3f,0xd4,0x70,0xd3,0x38,0xd2,0x1c,0xd1,0x0e,0x10,0x07,0x01,0xff,0xd5,
+ 0xb0,0x00,0x01,0xff,0xd5,0xb1,0x00,0x10,0x07,0x01,0xff,0xd5,0xb2,0x00,0x01,0xff,
+ 0xd5,0xb3,0x00,0xd1,0x0e,0x10,0x07,0x01,0xff,0xd5,0xb4,0x00,0x01,0xff,0xd5,0xb5,
+ 0x00,0x10,0x07,0x01,0xff,0xd5,0xb6,0x00,0x01,0xff,0xd5,0xb7,0x00,0xd2,0x1c,0xd1,
+ 0x0e,0x10,0x07,0x01,0xff,0xd5,0xb8,0x00,0x01,0xff,0xd5,0xb9,0x00,0x10,0x07,0x01,
+ 0xff,0xd5,0xba,0x00,0x01,0xff,0xd5,0xbb,0x00,0xd1,0x0e,0x10,0x07,0x01,0xff,0xd5,
+ 0xbc,0x00,0x01,0xff,0xd5,0xbd,0x00,0x10,0x07,0x01,0xff,0xd5,0xbe,0x00,0x01,0xff,
+ 0xd5,0xbf,0x00,0xe3,0x87,0x3e,0xd2,0x1c,0xd1,0x0e,0x10,0x07,0x01,0xff,0xd6,0x80,
+ 0x00,0x01,0xff,0xd6,0x81,0x00,0x10,0x07,0x01,0xff,0xd6,0x82,0x00,0x01,0xff,0xd6,
+ 0x83,0x00,0xd1,0x0e,0x10,0x07,0x01,0xff,0xd6,0x84,0x00,0x01,0xff,0xd6,0x85,0x00,
+ 0x10,0x07,0x01,0xff,0xd6,0x86,0x00,0x00,0x00,0xe0,0x2f,0x3f,0xcf,0x86,0xe5,0xc0,
+ 0x3e,0xe4,0x97,0x3e,0xe3,0x76,0x3e,0x52,0x04,0x01,0x00,0x51,0x04,0x01,0x00,0x10,
+ 0x04,0x01,0x00,0x01,0xff,0xd5,0xa5,0xd6,0x82,0x00,0xe4,0x3e,0x25,0xe3,0xc3,0x1a,
+ 0xe2,0x7b,0x81,0xe1,0xc0,0x13,0xd0,0x1e,0xcf,0x86,0xc5,0xe4,0x08,0x4b,0xe3,0x53,
+ 0x46,0xe2,0xe9,0x43,0xe1,0x1c,0x43,0xe0,0xe1,0x42,0xcf,0x86,0xe5,0xa6,0x42,0x64,
+ 0x89,0x42,0x0b,0x00,0xcf,0x86,0xe5,0xfa,0x01,0xe4,0x03,0x56,0xe3,0x76,0x01,0xe2,
+ 0x8e,0x53,0xd1,0x0c,0xe0,0xef,0x52,0xcf,0x86,0x65,0x8d,0x52,0x04,0x00,0xe0,0x0d,
+ 0x01,0xcf,0x86,0xd5,0x0a,0xe4,0x10,0x53,0x63,0xff,0x52,0x0a,0x00,0xd4,0x80,0xd3,
+ 0x40,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0xe2,0xb4,0x80,0x00,0x01,0xff,0xe2,
+ 0xb4,0x81,0x00,0x10,0x08,0x01,0xff,0xe2,0xb4,0x82,0x00,0x01,0xff,0xe2,0xb4,0x83,
+ 0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0xe2,0xb4,0x84,0x00,0x01,0xff,0xe2,0xb4,0x85,
+ 0x00,0x10,0x08,0x01,0xff,0xe2,0xb4,0x86,0x00,0x01,0xff,0xe2,0xb4,0x87,0x00,0xd2,
+ 0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0xe2,0xb4,0x88,0x00,0x01,0xff,0xe2,0xb4,0x89,
+ 0x00,0x10,0x08,0x01,0xff,0xe2,0xb4,0x8a,0x00,0x01,0xff,0xe2,0xb4,0x8b,0x00,0xd1,
+ 0x10,0x10,0x08,0x01,0xff,0xe2,0xb4,0x8c,0x00,0x01,0xff,0xe2,0xb4,0x8d,0x00,0x10,
+ 0x08,0x01,0xff,0xe2,0xb4,0x8e,0x00,0x01,0xff,0xe2,0xb4,0x8f,0x00,0xd3,0x40,0xd2,
+ 0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0xe2,0xb4,0x90,0x00,0x01,0xff,0xe2,0xb4,0x91,
+ 0x00,0x10,0x08,0x01,0xff,0xe2,0xb4,0x92,0x00,0x01,0xff,0xe2,0xb4,0x93,0x00,0xd1,
+ 0x10,0x10,0x08,0x01,0xff,0xe2,0xb4,0x94,0x00,0x01,0xff,0xe2,0xb4,0x95,0x00,0x10,
+ 0x08,0x01,0xff,0xe2,0xb4,0x96,0x00,0x01,0xff,0xe2,0xb4,0x97,0x00,0xd2,0x20,0xd1,
+ 0x10,0x10,0x08,0x01,0xff,0xe2,0xb4,0x98,0x00,0x01,0xff,0xe2,0xb4,0x99,0x00,0x10,
+ 0x08,0x01,0xff,0xe2,0xb4,0x9a,0x00,0x01,0xff,0xe2,0xb4,0x9b,0x00,0xd1,0x10,0x10,
+ 0x08,0x01,0xff,0xe2,0xb4,0x9c,0x00,0x01,0xff,0xe2,0xb4,0x9d,0x00,0x10,0x08,0x01,
+ 0xff,0xe2,0xb4,0x9e,0x00,0x01,0xff,0xe2,0xb4,0x9f,0x00,0xcf,0x86,0xe5,0x42,0x52,
+ 0x94,0x50,0xd3,0x3c,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0xe2,0xb4,0xa0,0x00,
+ 0x01,0xff,0xe2,0xb4,0xa1,0x00,0x10,0x08,0x01,0xff,0xe2,0xb4,0xa2,0x00,0x01,0xff,
+ 0xe2,0xb4,0xa3,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0xe2,0xb4,0xa4,0x00,0x01,0xff,
+ 0xe2,0xb4,0xa5,0x00,0x10,0x04,0x00,0x00,0x0d,0xff,0xe2,0xb4,0xa7,0x00,0x52,0x04,
+ 0x00,0x00,0x91,0x0c,0x10,0x04,0x00,0x00,0x0d,0xff,0xe2,0xb4,0xad,0x00,0x00,0x00,
+ 0x01,0x00,0xd2,0x1b,0xe1,0xfc,0x52,0xe0,0xad,0x52,0xcf,0x86,0x95,0x0f,0x94,0x0b,
+ 0x93,0x07,0x62,0x92,0x52,0x04,0x00,0x04,0x00,0x04,0x00,0x04,0x00,0xd1,0x13,0xe0,
+ 0xd3,0x53,0xcf,0x86,0x95,0x0a,0xe4,0xa8,0x53,0x63,0x97,0x53,0x04,0x00,0x04,0x00,
+ 0xd0,0x0d,0xcf,0x86,0x95,0x07,0x64,0x22,0x54,0x08,0x00,0x04,0x00,0xcf,0x86,0x55,
+ 0x04,0x04,0x00,0x54,0x04,0x04,0x00,0xd3,0x07,0x62,0x2f,0x54,0x04,0x00,0xd2,0x20,
+ 0xd1,0x10,0x10,0x08,0x11,0xff,0xe1,0x8f,0xb0,0x00,0x11,0xff,0xe1,0x8f,0xb1,0x00,
+ 0x10,0x08,0x11,0xff,0xe1,0x8f,0xb2,0x00,0x11,0xff,0xe1,0x8f,0xb3,0x00,0x91,0x10,
+ 0x10,0x08,0x11,0xff,0xe1,0x8f,0xb4,0x00,0x11,0xff,0xe1,0x8f,0xb5,0x00,0x00,0x00,
+ 0xd4,0x1c,0xe3,0xe0,0x56,0xe2,0x17,0x56,0xe1,0xda,0x55,0xe0,0xbb,0x55,0xcf,0x86,
+ 0x95,0x0a,0xe4,0xa4,0x55,0x63,0x88,0x55,0x04,0x00,0x04,0x00,0xe3,0xd2,0x01,0xe2,
+ 0x2b,0x5a,0xd1,0x0c,0xe0,0x4c,0x59,0xcf,0x86,0x65,0x25,0x59,0x0a,0x00,0xe0,0x9c,
+ 0x59,0xcf,0x86,0xd5,0xc5,0xd4,0x45,0xd3,0x31,0xd2,0x1c,0xd1,0x0e,0x10,0x07,0x12,
+ 0xff,0xd0,0xb2,0x00,0x12,0xff,0xd0,0xb4,0x00,0x10,0x07,0x12,0xff,0xd0,0xbe,0x00,
+ 0x12,0xff,0xd1,0x81,0x00,0x51,0x07,0x12,0xff,0xd1,0x82,0x00,0x10,0x07,0x12,0xff,
+ 0xd1,0x8a,0x00,0x12,0xff,0xd1,0xa3,0x00,0x92,0x10,0x91,0x0c,0x10,0x08,0x12,0xff,
+ 0xea,0x99,0x8b,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xd3,0x40,0xd2,0x20,0xd1,0x10,
+ 0x10,0x08,0x14,0xff,0xe1,0x83,0x90,0x00,0x14,0xff,0xe1,0x83,0x91,0x00,0x10,0x08,
+ 0x14,0xff,0xe1,0x83,0x92,0x00,0x14,0xff,0xe1,0x83,0x93,0x00,0xd1,0x10,0x10,0x08,
+ 0x14,0xff,0xe1,0x83,0x94,0x00,0x14,0xff,0xe1,0x83,0x95,0x00,0x10,0x08,0x14,0xff,
+ 0xe1,0x83,0x96,0x00,0x14,0xff,0xe1,0x83,0x97,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,
+ 0x14,0xff,0xe1,0x83,0x98,0x00,0x14,0xff,0xe1,0x83,0x99,0x00,0x10,0x08,0x14,0xff,
+ 0xe1,0x83,0x9a,0x00,0x14,0xff,0xe1,0x83,0x9b,0x00,0xd1,0x10,0x10,0x08,0x14,0xff,
+ 0xe1,0x83,0x9c,0x00,0x14,0xff,0xe1,0x83,0x9d,0x00,0x10,0x08,0x14,0xff,0xe1,0x83,
+ 0x9e,0x00,0x14,0xff,0xe1,0x83,0x9f,0x00,0xd4,0x80,0xd3,0x40,0xd2,0x20,0xd1,0x10,
+ 0x10,0x08,0x14,0xff,0xe1,0x83,0xa0,0x00,0x14,0xff,0xe1,0x83,0xa1,0x00,0x10,0x08,
+ 0x14,0xff,0xe1,0x83,0xa2,0x00,0x14,0xff,0xe1,0x83,0xa3,0x00,0xd1,0x10,0x10,0x08,
+ 0x14,0xff,0xe1,0x83,0xa4,0x00,0x14,0xff,0xe1,0x83,0xa5,0x00,0x10,0x08,0x14,0xff,
+ 0xe1,0x83,0xa6,0x00,0x14,0xff,0xe1,0x83,0xa7,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,
+ 0x14,0xff,0xe1,0x83,0xa8,0x00,0x14,0xff,0xe1,0x83,0xa9,0x00,0x10,0x08,0x14,0xff,
+ 0xe1,0x83,0xaa,0x00,0x14,0xff,0xe1,0x83,0xab,0x00,0xd1,0x10,0x10,0x08,0x14,0xff,
+ 0xe1,0x83,0xac,0x00,0x14,0xff,0xe1,0x83,0xad,0x00,0x10,0x08,0x14,0xff,0xe1,0x83,
+ 0xae,0x00,0x14,0xff,0xe1,0x83,0xaf,0x00,0xd3,0x40,0xd2,0x20,0xd1,0x10,0x10,0x08,
+ 0x14,0xff,0xe1,0x83,0xb0,0x00,0x14,0xff,0xe1,0x83,0xb1,0x00,0x10,0x08,0x14,0xff,
+ 0xe1,0x83,0xb2,0x00,0x14,0xff,0xe1,0x83,0xb3,0x00,0xd1,0x10,0x10,0x08,0x14,0xff,
+ 0xe1,0x83,0xb4,0x00,0x14,0xff,0xe1,0x83,0xb5,0x00,0x10,0x08,0x14,0xff,0xe1,0x83,
+ 0xb6,0x00,0x14,0xff,0xe1,0x83,0xb7,0x00,0xd2,0x1c,0xd1,0x10,0x10,0x08,0x14,0xff,
+ 0xe1,0x83,0xb8,0x00,0x14,0xff,0xe1,0x83,0xb9,0x00,0x10,0x08,0x14,0xff,0xe1,0x83,
+ 0xba,0x00,0x00,0x00,0xd1,0x0c,0x10,0x04,0x00,0x00,0x14,0xff,0xe1,0x83,0xbd,0x00,
+ 0x10,0x08,0x14,0xff,0xe1,0x83,0xbe,0x00,0x14,0xff,0xe1,0x83,0xbf,0x00,0xe2,0x9d,
+ 0x08,0xe1,0x48,0x04,0xe0,0x1c,0x02,0xcf,0x86,0xe5,0x11,0x01,0xd4,0x84,0xd3,0x40,
+ 0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x61,0xcc,0xa5,0x00,0x01,0xff,0x61,0xcc,
+ 0xa5,0x00,0x10,0x08,0x01,0xff,0x62,0xcc,0x87,0x00,0x01,0xff,0x62,0xcc,0x87,0x00,
+ 0xd1,0x10,0x10,0x08,0x01,0xff,0x62,0xcc,0xa3,0x00,0x01,0xff,0x62,0xcc,0xa3,0x00,
+ 0x10,0x08,0x01,0xff,0x62,0xcc,0xb1,0x00,0x01,0xff,0x62,0xcc,0xb1,0x00,0xd2,0x24,
+ 0xd1,0x14,0x10,0x0a,0x01,0xff,0x63,0xcc,0xa7,0xcc,0x81,0x00,0x01,0xff,0x63,0xcc,
+ 0xa7,0xcc,0x81,0x00,0x10,0x08,0x01,0xff,0x64,0xcc,0x87,0x00,0x01,0xff,0x64,0xcc,
+ 0x87,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x64,0xcc,0xa3,0x00,0x01,0xff,0x64,0xcc,
+ 0xa3,0x00,0x10,0x08,0x01,0xff,0x64,0xcc,0xb1,0x00,0x01,0xff,0x64,0xcc,0xb1,0x00,
+ 0xd3,0x48,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x64,0xcc,0xa7,0x00,0x01,0xff,
+ 0x64,0xcc,0xa7,0x00,0x10,0x08,0x01,0xff,0x64,0xcc,0xad,0x00,0x01,0xff,0x64,0xcc,
+ 0xad,0x00,0xd1,0x14,0x10,0x0a,0x01,0xff,0x65,0xcc,0x84,0xcc,0x80,0x00,0x01,0xff,
+ 0x65,0xcc,0x84,0xcc,0x80,0x00,0x10,0x0a,0x01,0xff,0x65,0xcc,0x84,0xcc,0x81,0x00,
+ 0x01,0xff,0x65,0xcc,0x84,0xcc,0x81,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,
+ 0x65,0xcc,0xad,0x00,0x01,0xff,0x65,0xcc,0xad,0x00,0x10,0x08,0x01,0xff,0x65,0xcc,
+ 0xb0,0x00,0x01,0xff,0x65,0xcc,0xb0,0x00,0xd1,0x14,0x10,0x0a,0x01,0xff,0x65,0xcc,
+ 0xa7,0xcc,0x86,0x00,0x01,0xff,0x65,0xcc,0xa7,0xcc,0x86,0x00,0x10,0x08,0x01,0xff,
+ 0x66,0xcc,0x87,0x00,0x01,0xff,0x66,0xcc,0x87,0x00,0xd4,0x84,0xd3,0x40,0xd2,0x20,
+ 0xd1,0x10,0x10,0x08,0x01,0xff,0x67,0xcc,0x84,0x00,0x01,0xff,0x67,0xcc,0x84,0x00,
+ 0x10,0x08,0x01,0xff,0x68,0xcc,0x87,0x00,0x01,0xff,0x68,0xcc,0x87,0x00,0xd1,0x10,
+ 0x10,0x08,0x01,0xff,0x68,0xcc,0xa3,0x00,0x01,0xff,0x68,0xcc,0xa3,0x00,0x10,0x08,
+ 0x01,0xff,0x68,0xcc,0x88,0x00,0x01,0xff,0x68,0xcc,0x88,0x00,0xd2,0x20,0xd1,0x10,
+ 0x10,0x08,0x01,0xff,0x68,0xcc,0xa7,0x00,0x01,0xff,0x68,0xcc,0xa7,0x00,0x10,0x08,
+ 0x01,0xff,0x68,0xcc,0xae,0x00,0x01,0xff,0x68,0xcc,0xae,0x00,0xd1,0x10,0x10,0x08,
+ 0x01,0xff,0x69,0xcc,0xb0,0x00,0x01,0xff,0x69,0xcc,0xb0,0x00,0x10,0x0a,0x01,0xff,
+ 0x69,0xcc,0x88,0xcc,0x81,0x00,0x01,0xff,0x69,0xcc,0x88,0xcc,0x81,0x00,0xd3,0x40,
+ 0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x6b,0xcc,0x81,0x00,0x01,0xff,0x6b,0xcc,
+ 0x81,0x00,0x10,0x08,0x01,0xff,0x6b,0xcc,0xa3,0x00,0x01,0xff,0x6b,0xcc,0xa3,0x00,
+ 0xd1,0x10,0x10,0x08,0x01,0xff,0x6b,0xcc,0xb1,0x00,0x01,0xff,0x6b,0xcc,0xb1,0x00,
+ 0x10,0x08,0x01,0xff,0x6c,0xcc,0xa3,0x00,0x01,0xff,0x6c,0xcc,0xa3,0x00,0xd2,0x24,
+ 0xd1,0x14,0x10,0x0a,0x01,0xff,0x6c,0xcc,0xa3,0xcc,0x84,0x00,0x01,0xff,0x6c,0xcc,
+ 0xa3,0xcc,0x84,0x00,0x10,0x08,0x01,0xff,0x6c,0xcc,0xb1,0x00,0x01,0xff,0x6c,0xcc,
+ 0xb1,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x6c,0xcc,0xad,0x00,0x01,0xff,0x6c,0xcc,
+ 0xad,0x00,0x10,0x08,0x01,0xff,0x6d,0xcc,0x81,0x00,0x01,0xff,0x6d,0xcc,0x81,0x00,
+ 0xcf,0x86,0xe5,0x15,0x01,0xd4,0x88,0xd3,0x40,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,
+ 0xff,0x6d,0xcc,0x87,0x00,0x01,0xff,0x6d,0xcc,0x87,0x00,0x10,0x08,0x01,0xff,0x6d,
+ 0xcc,0xa3,0x00,0x01,0xff,0x6d,0xcc,0xa3,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x6e,
+ 0xcc,0x87,0x00,0x01,0xff,0x6e,0xcc,0x87,0x00,0x10,0x08,0x01,0xff,0x6e,0xcc,0xa3,
+ 0x00,0x01,0xff,0x6e,0xcc,0xa3,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x6e,
+ 0xcc,0xb1,0x00,0x01,0xff,0x6e,0xcc,0xb1,0x00,0x10,0x08,0x01,0xff,0x6e,0xcc,0xad,
+ 0x00,0x01,0xff,0x6e,0xcc,0xad,0x00,0xd1,0x14,0x10,0x0a,0x01,0xff,0x6f,0xcc,0x83,
+ 0xcc,0x81,0x00,0x01,0xff,0x6f,0xcc,0x83,0xcc,0x81,0x00,0x10,0x0a,0x01,0xff,0x6f,
+ 0xcc,0x83,0xcc,0x88,0x00,0x01,0xff,0x6f,0xcc,0x83,0xcc,0x88,0x00,0xd3,0x48,0xd2,
+ 0x28,0xd1,0x14,0x10,0x0a,0x01,0xff,0x6f,0xcc,0x84,0xcc,0x80,0x00,0x01,0xff,0x6f,
+ 0xcc,0x84,0xcc,0x80,0x00,0x10,0x0a,0x01,0xff,0x6f,0xcc,0x84,0xcc,0x81,0x00,0x01,
+ 0xff,0x6f,0xcc,0x84,0xcc,0x81,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x70,0xcc,0x81,
+ 0x00,0x01,0xff,0x70,0xcc,0x81,0x00,0x10,0x08,0x01,0xff,0x70,0xcc,0x87,0x00,0x01,
+ 0xff,0x70,0xcc,0x87,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x72,0xcc,0x87,
+ 0x00,0x01,0xff,0x72,0xcc,0x87,0x00,0x10,0x08,0x01,0xff,0x72,0xcc,0xa3,0x00,0x01,
+ 0xff,0x72,0xcc,0xa3,0x00,0xd1,0x14,0x10,0x0a,0x01,0xff,0x72,0xcc,0xa3,0xcc,0x84,
+ 0x00,0x01,0xff,0x72,0xcc,0xa3,0xcc,0x84,0x00,0x10,0x08,0x01,0xff,0x72,0xcc,0xb1,
+ 0x00,0x01,0xff,0x72,0xcc,0xb1,0x00,0xd4,0x8c,0xd3,0x48,0xd2,0x20,0xd1,0x10,0x10,
+ 0x08,0x01,0xff,0x73,0xcc,0x87,0x00,0x01,0xff,0x73,0xcc,0x87,0x00,0x10,0x08,0x01,
+ 0xff,0x73,0xcc,0xa3,0x00,0x01,0xff,0x73,0xcc,0xa3,0x00,0xd1,0x14,0x10,0x0a,0x01,
+ 0xff,0x73,0xcc,0x81,0xcc,0x87,0x00,0x01,0xff,0x73,0xcc,0x81,0xcc,0x87,0x00,0x10,
+ 0x0a,0x01,0xff,0x73,0xcc,0x8c,0xcc,0x87,0x00,0x01,0xff,0x73,0xcc,0x8c,0xcc,0x87,
+ 0x00,0xd2,0x24,0xd1,0x14,0x10,0x0a,0x01,0xff,0x73,0xcc,0xa3,0xcc,0x87,0x00,0x01,
+ 0xff,0x73,0xcc,0xa3,0xcc,0x87,0x00,0x10,0x08,0x01,0xff,0x74,0xcc,0x87,0x00,0x01,
+ 0xff,0x74,0xcc,0x87,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x74,0xcc,0xa3,0x00,0x01,
+ 0xff,0x74,0xcc,0xa3,0x00,0x10,0x08,0x01,0xff,0x74,0xcc,0xb1,0x00,0x01,0xff,0x74,
+ 0xcc,0xb1,0x00,0xd3,0x40,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x74,0xcc,0xad,
+ 0x00,0x01,0xff,0x74,0xcc,0xad,0x00,0x10,0x08,0x01,0xff,0x75,0xcc,0xa4,0x00,0x01,
+ 0xff,0x75,0xcc,0xa4,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x75,0xcc,0xb0,0x00,0x01,
+ 0xff,0x75,0xcc,0xb0,0x00,0x10,0x08,0x01,0xff,0x75,0xcc,0xad,0x00,0x01,0xff,0x75,
+ 0xcc,0xad,0x00,0xd2,0x28,0xd1,0x14,0x10,0x0a,0x01,0xff,0x75,0xcc,0x83,0xcc,0x81,
+ 0x00,0x01,0xff,0x75,0xcc,0x83,0xcc,0x81,0x00,0x10,0x0a,0x01,0xff,0x75,0xcc,0x84,
+ 0xcc,0x88,0x00,0x01,0xff,0x75,0xcc,0x84,0xcc,0x88,0x00,0xd1,0x10,0x10,0x08,0x01,
+ 0xff,0x76,0xcc,0x83,0x00,0x01,0xff,0x76,0xcc,0x83,0x00,0x10,0x08,0x01,0xff,0x76,
+ 0xcc,0xa3,0x00,0x01,0xff,0x76,0xcc,0xa3,0x00,0xe0,0x11,0x02,0xcf,0x86,0xd5,0xe2,
+ 0xd4,0x80,0xd3,0x40,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x77,0xcc,0x80,0x00,
+ 0x01,0xff,0x77,0xcc,0x80,0x00,0x10,0x08,0x01,0xff,0x77,0xcc,0x81,0x00,0x01,0xff,
+ 0x77,0xcc,0x81,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x77,0xcc,0x88,0x00,0x01,0xff,
+ 0x77,0xcc,0x88,0x00,0x10,0x08,0x01,0xff,0x77,0xcc,0x87,0x00,0x01,0xff,0x77,0xcc,
+ 0x87,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x77,0xcc,0xa3,0x00,0x01,0xff,
+ 0x77,0xcc,0xa3,0x00,0x10,0x08,0x01,0xff,0x78,0xcc,0x87,0x00,0x01,0xff,0x78,0xcc,
+ 0x87,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x78,0xcc,0x88,0x00,0x01,0xff,0x78,0xcc,
+ 0x88,0x00,0x10,0x08,0x01,0xff,0x79,0xcc,0x87,0x00,0x01,0xff,0x79,0xcc,0x87,0x00,
+ 0xd3,0x33,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x7a,0xcc,0x82,0x00,0x01,0xff,
+ 0x7a,0xcc,0x82,0x00,0x10,0x08,0x01,0xff,0x7a,0xcc,0xa3,0x00,0x01,0xff,0x7a,0xcc,
+ 0xa3,0x00,0xe1,0x12,0x59,0x10,0x08,0x01,0xff,0x7a,0xcc,0xb1,0x00,0x01,0xff,0x7a,
+ 0xcc,0xb1,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x77,0xcc,0x8a,0x00,0x01,
+ 0xff,0x79,0xcc,0x8a,0x00,0x10,0x08,0x01,0xff,0x61,0xca,0xbe,0x00,0x02,0xff,0x73,
+ 0xcc,0x87,0x00,0x51,0x04,0x0a,0x00,0x10,0x07,0x0a,0xff,0x73,0x73,0x00,0x0a,0x00,
+ 0xd4,0x98,0xd3,0x48,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x61,0xcc,0xa3,0x00,
+ 0x01,0xff,0x61,0xcc,0xa3,0x00,0x10,0x08,0x01,0xff,0x61,0xcc,0x89,0x00,0x01,0xff,
+ 0x61,0xcc,0x89,0x00,0xd1,0x14,0x10,0x0a,0x01,0xff,0x61,0xcc,0x82,0xcc,0x81,0x00,
+ 0x01,0xff,0x61,0xcc,0x82,0xcc,0x81,0x00,0x10,0x0a,0x01,0xff,0x61,0xcc,0x82,0xcc,
+ 0x80,0x00,0x01,0xff,0x61,0xcc,0x82,0xcc,0x80,0x00,0xd2,0x28,0xd1,0x14,0x10,0x0a,
+ 0x01,0xff,0x61,0xcc,0x82,0xcc,0x89,0x00,0x01,0xff,0x61,0xcc,0x82,0xcc,0x89,0x00,
+ 0x10,0x0a,0x01,0xff,0x61,0xcc,0x82,0xcc,0x83,0x00,0x01,0xff,0x61,0xcc,0x82,0xcc,
+ 0x83,0x00,0xd1,0x14,0x10,0x0a,0x01,0xff,0x61,0xcc,0xa3,0xcc,0x82,0x00,0x01,0xff,
+ 0x61,0xcc,0xa3,0xcc,0x82,0x00,0x10,0x0a,0x01,0xff,0x61,0xcc,0x86,0xcc,0x81,0x00,
+ 0x01,0xff,0x61,0xcc,0x86,0xcc,0x81,0x00,0xd3,0x50,0xd2,0x28,0xd1,0x14,0x10,0x0a,
+ 0x01,0xff,0x61,0xcc,0x86,0xcc,0x80,0x00,0x01,0xff,0x61,0xcc,0x86,0xcc,0x80,0x00,
+ 0x10,0x0a,0x01,0xff,0x61,0xcc,0x86,0xcc,0x89,0x00,0x01,0xff,0x61,0xcc,0x86,0xcc,
+ 0x89,0x00,0xd1,0x14,0x10,0x0a,0x01,0xff,0x61,0xcc,0x86,0xcc,0x83,0x00,0x01,0xff,
+ 0x61,0xcc,0x86,0xcc,0x83,0x00,0x10,0x0a,0x01,0xff,0x61,0xcc,0xa3,0xcc,0x86,0x00,
+ 0x01,0xff,0x61,0xcc,0xa3,0xcc,0x86,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,
+ 0x65,0xcc,0xa3,0x00,0x01,0xff,0x65,0xcc,0xa3,0x00,0x10,0x08,0x01,0xff,0x65,0xcc,
+ 0x89,0x00,0x01,0xff,0x65,0xcc,0x89,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x65,0xcc,
+ 0x83,0x00,0x01,0xff,0x65,0xcc,0x83,0x00,0x10,0x0a,0x01,0xff,0x65,0xcc,0x82,0xcc,
+ 0x81,0x00,0x01,0xff,0x65,0xcc,0x82,0xcc,0x81,0x00,0xcf,0x86,0xe5,0x31,0x01,0xd4,
+ 0x90,0xd3,0x50,0xd2,0x28,0xd1,0x14,0x10,0x0a,0x01,0xff,0x65,0xcc,0x82,0xcc,0x80,
+ 0x00,0x01,0xff,0x65,0xcc,0x82,0xcc,0x80,0x00,0x10,0x0a,0x01,0xff,0x65,0xcc,0x82,
+ 0xcc,0x89,0x00,0x01,0xff,0x65,0xcc,0x82,0xcc,0x89,0x00,0xd1,0x14,0x10,0x0a,0x01,
+ 0xff,0x65,0xcc,0x82,0xcc,0x83,0x00,0x01,0xff,0x65,0xcc,0x82,0xcc,0x83,0x00,0x10,
+ 0x0a,0x01,0xff,0x65,0xcc,0xa3,0xcc,0x82,0x00,0x01,0xff,0x65,0xcc,0xa3,0xcc,0x82,
+ 0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x69,0xcc,0x89,0x00,0x01,0xff,0x69,
+ 0xcc,0x89,0x00,0x10,0x08,0x01,0xff,0x69,0xcc,0xa3,0x00,0x01,0xff,0x69,0xcc,0xa3,
+ 0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x6f,0xcc,0xa3,0x00,0x01,0xff,0x6f,0xcc,0xa3,
+ 0x00,0x10,0x08,0x01,0xff,0x6f,0xcc,0x89,0x00,0x01,0xff,0x6f,0xcc,0x89,0x00,0xd3,
+ 0x50,0xd2,0x28,0xd1,0x14,0x10,0x0a,0x01,0xff,0x6f,0xcc,0x82,0xcc,0x81,0x00,0x01,
+ 0xff,0x6f,0xcc,0x82,0xcc,0x81,0x00,0x10,0x0a,0x01,0xff,0x6f,0xcc,0x82,0xcc,0x80,
+ 0x00,0x01,0xff,0x6f,0xcc,0x82,0xcc,0x80,0x00,0xd1,0x14,0x10,0x0a,0x01,0xff,0x6f,
+ 0xcc,0x82,0xcc,0x89,0x00,0x01,0xff,0x6f,0xcc,0x82,0xcc,0x89,0x00,0x10,0x0a,0x01,
+ 0xff,0x6f,0xcc,0x82,0xcc,0x83,0x00,0x01,0xff,0x6f,0xcc,0x82,0xcc,0x83,0x00,0xd2,
+ 0x28,0xd1,0x14,0x10,0x0a,0x01,0xff,0x6f,0xcc,0xa3,0xcc,0x82,0x00,0x01,0xff,0x6f,
+ 0xcc,0xa3,0xcc,0x82,0x00,0x10,0x0a,0x01,0xff,0x6f,0xcc,0x9b,0xcc,0x81,0x00,0x01,
+ 0xff,0x6f,0xcc,0x9b,0xcc,0x81,0x00,0xd1,0x14,0x10,0x0a,0x01,0xff,0x6f,0xcc,0x9b,
+ 0xcc,0x80,0x00,0x01,0xff,0x6f,0xcc,0x9b,0xcc,0x80,0x00,0x10,0x0a,0x01,0xff,0x6f,
+ 0xcc,0x9b,0xcc,0x89,0x00,0x01,0xff,0x6f,0xcc,0x9b,0xcc,0x89,0x00,0xd4,0x98,0xd3,
+ 0x48,0xd2,0x28,0xd1,0x14,0x10,0x0a,0x01,0xff,0x6f,0xcc,0x9b,0xcc,0x83,0x00,0x01,
+ 0xff,0x6f,0xcc,0x9b,0xcc,0x83,0x00,0x10,0x0a,0x01,0xff,0x6f,0xcc,0x9b,0xcc,0xa3,
+ 0x00,0x01,0xff,0x6f,0xcc,0x9b,0xcc,0xa3,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x75,
+ 0xcc,0xa3,0x00,0x01,0xff,0x75,0xcc,0xa3,0x00,0x10,0x08,0x01,0xff,0x75,0xcc,0x89,
+ 0x00,0x01,0xff,0x75,0xcc,0x89,0x00,0xd2,0x28,0xd1,0x14,0x10,0x0a,0x01,0xff,0x75,
+ 0xcc,0x9b,0xcc,0x81,0x00,0x01,0xff,0x75,0xcc,0x9b,0xcc,0x81,0x00,0x10,0x0a,0x01,
+ 0xff,0x75,0xcc,0x9b,0xcc,0x80,0x00,0x01,0xff,0x75,0xcc,0x9b,0xcc,0x80,0x00,0xd1,
+ 0x14,0x10,0x0a,0x01,0xff,0x75,0xcc,0x9b,0xcc,0x89,0x00,0x01,0xff,0x75,0xcc,0x9b,
+ 0xcc,0x89,0x00,0x10,0x0a,0x01,0xff,0x75,0xcc,0x9b,0xcc,0x83,0x00,0x01,0xff,0x75,
+ 0xcc,0x9b,0xcc,0x83,0x00,0xd3,0x44,0xd2,0x24,0xd1,0x14,0x10,0x0a,0x01,0xff,0x75,
+ 0xcc,0x9b,0xcc,0xa3,0x00,0x01,0xff,0x75,0xcc,0x9b,0xcc,0xa3,0x00,0x10,0x08,0x01,
+ 0xff,0x79,0xcc,0x80,0x00,0x01,0xff,0x79,0xcc,0x80,0x00,0xd1,0x10,0x10,0x08,0x01,
+ 0xff,0x79,0xcc,0xa3,0x00,0x01,0xff,0x79,0xcc,0xa3,0x00,0x10,0x08,0x01,0xff,0x79,
+ 0xcc,0x89,0x00,0x01,0xff,0x79,0xcc,0x89,0x00,0xd2,0x1c,0xd1,0x10,0x10,0x08,0x01,
+ 0xff,0x79,0xcc,0x83,0x00,0x01,0xff,0x79,0xcc,0x83,0x00,0x10,0x08,0x0a,0xff,0xe1,
+ 0xbb,0xbb,0x00,0x0a,0x00,0xd1,0x0c,0x10,0x08,0x0a,0xff,0xe1,0xbb,0xbd,0x00,0x0a,
+ 0x00,0x10,0x08,0x0a,0xff,0xe1,0xbb,0xbf,0x00,0x0a,0x00,0xe1,0xbf,0x02,0xe0,0xa1,
+ 0x01,0xcf,0x86,0xd5,0xc6,0xd4,0x6c,0xd3,0x18,0xe2,0x0e,0x59,0xe1,0xf7,0x58,0x10,
+ 0x09,0x01,0xff,0xce,0xb1,0xcc,0x93,0x00,0x01,0xff,0xce,0xb1,0xcc,0x94,0x00,0xd2,
+ 0x28,0xd1,0x12,0x10,0x09,0x01,0xff,0xce,0xb1,0xcc,0x93,0x00,0x01,0xff,0xce,0xb1,
+ 0xcc,0x94,0x00,0x10,0x0b,0x01,0xff,0xce,0xb1,0xcc,0x93,0xcc,0x80,0x00,0x01,0xff,
+ 0xce,0xb1,0xcc,0x94,0xcc,0x80,0x00,0xd1,0x16,0x10,0x0b,0x01,0xff,0xce,0xb1,0xcc,
+ 0x93,0xcc,0x81,0x00,0x01,0xff,0xce,0xb1,0xcc,0x94,0xcc,0x81,0x00,0x10,0x0b,0x01,
+ 0xff,0xce,0xb1,0xcc,0x93,0xcd,0x82,0x00,0x01,0xff,0xce,0xb1,0xcc,0x94,0xcd,0x82,
+ 0x00,0xd3,0x18,0xe2,0x4a,0x59,0xe1,0x33,0x59,0x10,0x09,0x01,0xff,0xce,0xb5,0xcc,
+ 0x93,0x00,0x01,0xff,0xce,0xb5,0xcc,0x94,0x00,0xd2,0x28,0xd1,0x12,0x10,0x09,0x01,
+ 0xff,0xce,0xb5,0xcc,0x93,0x00,0x01,0xff,0xce,0xb5,0xcc,0x94,0x00,0x10,0x0b,0x01,
+ 0xff,0xce,0xb5,0xcc,0x93,0xcc,0x80,0x00,0x01,0xff,0xce,0xb5,0xcc,0x94,0xcc,0x80,
+ 0x00,0x91,0x16,0x10,0x0b,0x01,0xff,0xce,0xb5,0xcc,0x93,0xcc,0x81,0x00,0x01,0xff,
+ 0xce,0xb5,0xcc,0x94,0xcc,0x81,0x00,0x00,0x00,0xd4,0x6c,0xd3,0x18,0xe2,0x74,0x59,
+ 0xe1,0x5d,0x59,0x10,0x09,0x01,0xff,0xce,0xb7,0xcc,0x93,0x00,0x01,0xff,0xce,0xb7,
+ 0xcc,0x94,0x00,0xd2,0x28,0xd1,0x12,0x10,0x09,0x01,0xff,0xce,0xb7,0xcc,0x93,0x00,
+ 0x01,0xff,0xce,0xb7,0xcc,0x94,0x00,0x10,0x0b,0x01,0xff,0xce,0xb7,0xcc,0x93,0xcc,
+ 0x80,0x00,0x01,0xff,0xce,0xb7,0xcc,0x94,0xcc,0x80,0x00,0xd1,0x16,0x10,0x0b,0x01,
+ 0xff,0xce,0xb7,0xcc,0x93,0xcc,0x81,0x00,0x01,0xff,0xce,0xb7,0xcc,0x94,0xcc,0x81,
+ 0x00,0x10,0x0b,0x01,0xff,0xce,0xb7,0xcc,0x93,0xcd,0x82,0x00,0x01,0xff,0xce,0xb7,
+ 0xcc,0x94,0xcd,0x82,0x00,0xd3,0x18,0xe2,0xb0,0x59,0xe1,0x99,0x59,0x10,0x09,0x01,
+ 0xff,0xce,0xb9,0xcc,0x93,0x00,0x01,0xff,0xce,0xb9,0xcc,0x94,0x00,0xd2,0x28,0xd1,
+ 0x12,0x10,0x09,0x01,0xff,0xce,0xb9,0xcc,0x93,0x00,0x01,0xff,0xce,0xb9,0xcc,0x94,
+ 0x00,0x10,0x0b,0x01,0xff,0xce,0xb9,0xcc,0x93,0xcc,0x80,0x00,0x01,0xff,0xce,0xb9,
+ 0xcc,0x94,0xcc,0x80,0x00,0xd1,0x16,0x10,0x0b,0x01,0xff,0xce,0xb9,0xcc,0x93,0xcc,
+ 0x81,0x00,0x01,0xff,0xce,0xb9,0xcc,0x94,0xcc,0x81,0x00,0x10,0x0b,0x01,0xff,0xce,
+ 0xb9,0xcc,0x93,0xcd,0x82,0x00,0x01,0xff,0xce,0xb9,0xcc,0x94,0xcd,0x82,0x00,0xcf,
+ 0x86,0xd5,0xac,0xd4,0x5a,0xd3,0x18,0xe2,0xed,0x59,0xe1,0xd6,0x59,0x10,0x09,0x01,
+ 0xff,0xce,0xbf,0xcc,0x93,0x00,0x01,0xff,0xce,0xbf,0xcc,0x94,0x00,0xd2,0x28,0xd1,
+ 0x12,0x10,0x09,0x01,0xff,0xce,0xbf,0xcc,0x93,0x00,0x01,0xff,0xce,0xbf,0xcc,0x94,
+ 0x00,0x10,0x0b,0x01,0xff,0xce,0xbf,0xcc,0x93,0xcc,0x80,0x00,0x01,0xff,0xce,0xbf,
+ 0xcc,0x94,0xcc,0x80,0x00,0x91,0x16,0x10,0x0b,0x01,0xff,0xce,0xbf,0xcc,0x93,0xcc,
+ 0x81,0x00,0x01,0xff,0xce,0xbf,0xcc,0x94,0xcc,0x81,0x00,0x00,0x00,0xd3,0x18,0xe2,
+ 0x17,0x5a,0xe1,0x00,0x5a,0x10,0x09,0x01,0xff,0xcf,0x85,0xcc,0x93,0x00,0x01,0xff,
+ 0xcf,0x85,0xcc,0x94,0x00,0xd2,0x1c,0xd1,0x0d,0x10,0x04,0x00,0x00,0x01,0xff,0xcf,
+ 0x85,0xcc,0x94,0x00,0x10,0x04,0x00,0x00,0x01,0xff,0xcf,0x85,0xcc,0x94,0xcc,0x80,
+ 0x00,0xd1,0x0f,0x10,0x04,0x00,0x00,0x01,0xff,0xcf,0x85,0xcc,0x94,0xcc,0x81,0x00,
+ 0x10,0x04,0x00,0x00,0x01,0xff,0xcf,0x85,0xcc,0x94,0xcd,0x82,0x00,0xe4,0xd3,0x5a,
+ 0xd3,0x18,0xe2,0x52,0x5a,0xe1,0x3b,0x5a,0x10,0x09,0x01,0xff,0xcf,0x89,0xcc,0x93,
+ 0x00,0x01,0xff,0xcf,0x89,0xcc,0x94,0x00,0xd2,0x28,0xd1,0x12,0x10,0x09,0x01,0xff,
+ 0xcf,0x89,0xcc,0x93,0x00,0x01,0xff,0xcf,0x89,0xcc,0x94,0x00,0x10,0x0b,0x01,0xff,
+ 0xcf,0x89,0xcc,0x93,0xcc,0x80,0x00,0x01,0xff,0xcf,0x89,0xcc,0x94,0xcc,0x80,0x00,
+ 0xd1,0x16,0x10,0x0b,0x01,0xff,0xcf,0x89,0xcc,0x93,0xcc,0x81,0x00,0x01,0xff,0xcf,
+ 0x89,0xcc,0x94,0xcc,0x81,0x00,0x10,0x0b,0x01,0xff,0xcf,0x89,0xcc,0x93,0xcd,0x82,
+ 0x00,0x01,0xff,0xcf,0x89,0xcc,0x94,0xcd,0x82,0x00,0xe0,0xd9,0x02,0xcf,0x86,0xe5,
+ 0x91,0x01,0xd4,0xc8,0xd3,0x64,0xd2,0x30,0xd1,0x16,0x10,0x0b,0x01,0xff,0xce,0xb1,
+ 0xcc,0x93,0xce,0xb9,0x00,0x01,0xff,0xce,0xb1,0xcc,0x94,0xce,0xb9,0x00,0x10,0x0d,
+ 0x01,0xff,0xce,0xb1,0xcc,0x93,0xcc,0x80,0xce,0xb9,0x00,0x01,0xff,0xce,0xb1,0xcc,
+ 0x94,0xcc,0x80,0xce,0xb9,0x00,0xd1,0x1a,0x10,0x0d,0x01,0xff,0xce,0xb1,0xcc,0x93,
+ 0xcc,0x81,0xce,0xb9,0x00,0x01,0xff,0xce,0xb1,0xcc,0x94,0xcc,0x81,0xce,0xb9,0x00,
+ 0x10,0x0d,0x01,0xff,0xce,0xb1,0xcc,0x93,0xcd,0x82,0xce,0xb9,0x00,0x01,0xff,0xce,
+ 0xb1,0xcc,0x94,0xcd,0x82,0xce,0xb9,0x00,0xd2,0x30,0xd1,0x16,0x10,0x0b,0x01,0xff,
+ 0xce,0xb1,0xcc,0x93,0xce,0xb9,0x00,0x01,0xff,0xce,0xb1,0xcc,0x94,0xce,0xb9,0x00,
+ 0x10,0x0d,0x01,0xff,0xce,0xb1,0xcc,0x93,0xcc,0x80,0xce,0xb9,0x00,0x01,0xff,0xce,
+ 0xb1,0xcc,0x94,0xcc,0x80,0xce,0xb9,0x00,0xd1,0x1a,0x10,0x0d,0x01,0xff,0xce,0xb1,
+ 0xcc,0x93,0xcc,0x81,0xce,0xb9,0x00,0x01,0xff,0xce,0xb1,0xcc,0x94,0xcc,0x81,0xce,
+ 0xb9,0x00,0x10,0x0d,0x01,0xff,0xce,0xb1,0xcc,0x93,0xcd,0x82,0xce,0xb9,0x00,0x01,
+ 0xff,0xce,0xb1,0xcc,0x94,0xcd,0x82,0xce,0xb9,0x00,0xd3,0x64,0xd2,0x30,0xd1,0x16,
+ 0x10,0x0b,0x01,0xff,0xce,0xb7,0xcc,0x93,0xce,0xb9,0x00,0x01,0xff,0xce,0xb7,0xcc,
+ 0x94,0xce,0xb9,0x00,0x10,0x0d,0x01,0xff,0xce,0xb7,0xcc,0x93,0xcc,0x80,0xce,0xb9,
+ 0x00,0x01,0xff,0xce,0xb7,0xcc,0x94,0xcc,0x80,0xce,0xb9,0x00,0xd1,0x1a,0x10,0x0d,
+ 0x01,0xff,0xce,0xb7,0xcc,0x93,0xcc,0x81,0xce,0xb9,0x00,0x01,0xff,0xce,0xb7,0xcc,
+ 0x94,0xcc,0x81,0xce,0xb9,0x00,0x10,0x0d,0x01,0xff,0xce,0xb7,0xcc,0x93,0xcd,0x82,
+ 0xce,0xb9,0x00,0x01,0xff,0xce,0xb7,0xcc,0x94,0xcd,0x82,0xce,0xb9,0x00,0xd2,0x30,
+ 0xd1,0x16,0x10,0x0b,0x01,0xff,0xce,0xb7,0xcc,0x93,0xce,0xb9,0x00,0x01,0xff,0xce,
+ 0xb7,0xcc,0x94,0xce,0xb9,0x00,0x10,0x0d,0x01,0xff,0xce,0xb7,0xcc,0x93,0xcc,0x80,
+ 0xce,0xb9,0x00,0x01,0xff,0xce,0xb7,0xcc,0x94,0xcc,0x80,0xce,0xb9,0x00,0xd1,0x1a,
+ 0x10,0x0d,0x01,0xff,0xce,0xb7,0xcc,0x93,0xcc,0x81,0xce,0xb9,0x00,0x01,0xff,0xce,
+ 0xb7,0xcc,0x94,0xcc,0x81,0xce,0xb9,0x00,0x10,0x0d,0x01,0xff,0xce,0xb7,0xcc,0x93,
+ 0xcd,0x82,0xce,0xb9,0x00,0x01,0xff,0xce,0xb7,0xcc,0x94,0xcd,0x82,0xce,0xb9,0x00,
+ 0xd4,0xc8,0xd3,0x64,0xd2,0x30,0xd1,0x16,0x10,0x0b,0x01,0xff,0xcf,0x89,0xcc,0x93,
+ 0xce,0xb9,0x00,0x01,0xff,0xcf,0x89,0xcc,0x94,0xce,0xb9,0x00,0x10,0x0d,0x01,0xff,
+ 0xcf,0x89,0xcc,0x93,0xcc,0x80,0xce,0xb9,0x00,0x01,0xff,0xcf,0x89,0xcc,0x94,0xcc,
+ 0x80,0xce,0xb9,0x00,0xd1,0x1a,0x10,0x0d,0x01,0xff,0xcf,0x89,0xcc,0x93,0xcc,0x81,
+ 0xce,0xb9,0x00,0x01,0xff,0xcf,0x89,0xcc,0x94,0xcc,0x81,0xce,0xb9,0x00,0x10,0x0d,
+ 0x01,0xff,0xcf,0x89,0xcc,0x93,0xcd,0x82,0xce,0xb9,0x00,0x01,0xff,0xcf,0x89,0xcc,
+ 0x94,0xcd,0x82,0xce,0xb9,0x00,0xd2,0x30,0xd1,0x16,0x10,0x0b,0x01,0xff,0xcf,0x89,
+ 0xcc,0x93,0xce,0xb9,0x00,0x01,0xff,0xcf,0x89,0xcc,0x94,0xce,0xb9,0x00,0x10,0x0d,
+ 0x01,0xff,0xcf,0x89,0xcc,0x93,0xcc,0x80,0xce,0xb9,0x00,0x01,0xff,0xcf,0x89,0xcc,
+ 0x94,0xcc,0x80,0xce,0xb9,0x00,0xd1,0x1a,0x10,0x0d,0x01,0xff,0xcf,0x89,0xcc,0x93,
+ 0xcc,0x81,0xce,0xb9,0x00,0x01,0xff,0xcf,0x89,0xcc,0x94,0xcc,0x81,0xce,0xb9,0x00,
+ 0x10,0x0d,0x01,0xff,0xcf,0x89,0xcc,0x93,0xcd,0x82,0xce,0xb9,0x00,0x01,0xff,0xcf,
+ 0x89,0xcc,0x94,0xcd,0x82,0xce,0xb9,0x00,0xd3,0x49,0xd2,0x26,0xd1,0x12,0x10,0x09,
+ 0x01,0xff,0xce,0xb1,0xcc,0x86,0x00,0x01,0xff,0xce,0xb1,0xcc,0x84,0x00,0x10,0x0b,
+ 0x01,0xff,0xce,0xb1,0xcc,0x80,0xce,0xb9,0x00,0x01,0xff,0xce,0xb1,0xce,0xb9,0x00,
+ 0xd1,0x0f,0x10,0x0b,0x01,0xff,0xce,0xb1,0xcc,0x81,0xce,0xb9,0x00,0x00,0x00,0x10,
+ 0x09,0x01,0xff,0xce,0xb1,0xcd,0x82,0x00,0x01,0xff,0xce,0xb1,0xcd,0x82,0xce,0xb9,
+ 0x00,0xd2,0x24,0xd1,0x12,0x10,0x09,0x01,0xff,0xce,0xb1,0xcc,0x86,0x00,0x01,0xff,
+ 0xce,0xb1,0xcc,0x84,0x00,0x10,0x09,0x01,0xff,0xce,0xb1,0xcc,0x80,0x00,0x01,0xff,
+ 0xce,0xb1,0xcc,0x81,0x00,0xe1,0xf3,0x5a,0x10,0x09,0x01,0xff,0xce,0xb1,0xce,0xb9,
+ 0x00,0x01,0x00,0xcf,0x86,0xd5,0xbd,0xd4,0x7e,0xd3,0x44,0xd2,0x21,0xd1,0x0d,0x10,
+ 0x04,0x01,0x00,0x01,0xff,0xc2,0xa8,0xcd,0x82,0x00,0x10,0x0b,0x01,0xff,0xce,0xb7,
+ 0xcc,0x80,0xce,0xb9,0x00,0x01,0xff,0xce,0xb7,0xce,0xb9,0x00,0xd1,0x0f,0x10,0x0b,
+ 0x01,0xff,0xce,0xb7,0xcc,0x81,0xce,0xb9,0x00,0x00,0x00,0x10,0x09,0x01,0xff,0xce,
+ 0xb7,0xcd,0x82,0x00,0x01,0xff,0xce,0xb7,0xcd,0x82,0xce,0xb9,0x00,0xd2,0x24,0xd1,
+ 0x12,0x10,0x09,0x01,0xff,0xce,0xb5,0xcc,0x80,0x00,0x01,0xff,0xce,0xb5,0xcc,0x81,
+ 0x00,0x10,0x09,0x01,0xff,0xce,0xb7,0xcc,0x80,0x00,0x01,0xff,0xce,0xb7,0xcc,0x81,
+ 0x00,0xe1,0x02,0x5b,0x10,0x09,0x01,0xff,0xce,0xb7,0xce,0xb9,0x00,0x01,0xff,0xe1,
+ 0xbe,0xbf,0xcc,0x80,0x00,0xd3,0x18,0xe2,0x28,0x5b,0xe1,0x11,0x5b,0x10,0x09,0x01,
+ 0xff,0xce,0xb9,0xcc,0x86,0x00,0x01,0xff,0xce,0xb9,0xcc,0x84,0x00,0xe2,0x4c,0x5b,
+ 0xd1,0x12,0x10,0x09,0x01,0xff,0xce,0xb9,0xcc,0x86,0x00,0x01,0xff,0xce,0xb9,0xcc,
+ 0x84,0x00,0x10,0x09,0x01,0xff,0xce,0xb9,0xcc,0x80,0x00,0x01,0xff,0xce,0xb9,0xcc,
+ 0x81,0x00,0xd4,0x51,0xd3,0x18,0xe2,0x6f,0x5b,0xe1,0x58,0x5b,0x10,0x09,0x01,0xff,
+ 0xcf,0x85,0xcc,0x86,0x00,0x01,0xff,0xcf,0x85,0xcc,0x84,0x00,0xd2,0x24,0xd1,0x12,
+ 0x10,0x09,0x01,0xff,0xcf,0x85,0xcc,0x86,0x00,0x01,0xff,0xcf,0x85,0xcc,0x84,0x00,
+ 0x10,0x09,0x01,0xff,0xcf,0x85,0xcc,0x80,0x00,0x01,0xff,0xcf,0x85,0xcc,0x81,0x00,
+ 0xe1,0x8f,0x5b,0x10,0x09,0x01,0xff,0xcf,0x81,0xcc,0x94,0x00,0x01,0xff,0xc2,0xa8,
+ 0xcc,0x80,0x00,0xd3,0x3b,0xd2,0x18,0x51,0x04,0x00,0x00,0x10,0x0b,0x01,0xff,0xcf,
+ 0x89,0xcc,0x80,0xce,0xb9,0x00,0x01,0xff,0xcf,0x89,0xce,0xb9,0x00,0xd1,0x0f,0x10,
+ 0x0b,0x01,0xff,0xcf,0x89,0xcc,0x81,0xce,0xb9,0x00,0x00,0x00,0x10,0x09,0x01,0xff,
+ 0xcf,0x89,0xcd,0x82,0x00,0x01,0xff,0xcf,0x89,0xcd,0x82,0xce,0xb9,0x00,0xd2,0x24,
+ 0xd1,0x12,0x10,0x09,0x01,0xff,0xce,0xbf,0xcc,0x80,0x00,0x01,0xff,0xce,0xbf,0xcc,
+ 0x81,0x00,0x10,0x09,0x01,0xff,0xcf,0x89,0xcc,0x80,0x00,0x01,0xff,0xcf,0x89,0xcc,
+ 0x81,0x00,0xe1,0x99,0x5b,0x10,0x09,0x01,0xff,0xcf,0x89,0xce,0xb9,0x00,0x01,0xff,
+ 0xc2,0xb4,0x00,0xe0,0x0c,0x68,0xcf,0x86,0xe5,0x23,0x02,0xe4,0x25,0x01,0xe3,0x85,
+ 0x5e,0xd2,0x2a,0xe1,0x5f,0x5c,0xe0,0xdd,0x5b,0xcf,0x86,0xe5,0xbb,0x5b,0x94,0x1b,
+ 0xe3,0xa4,0x5b,0x92,0x14,0x91,0x10,0x10,0x08,0x01,0xff,0xe2,0x80,0x82,0x00,0x01,
+ 0xff,0xe2,0x80,0x83,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0xd1,0xd6,0xd0,0x46,0xcf,
+ 0x86,0x55,0x04,0x01,0x00,0xd4,0x29,0xd3,0x13,0x52,0x04,0x01,0x00,0x51,0x04,0x01,
+ 0x00,0x10,0x07,0x01,0xff,0xcf,0x89,0x00,0x01,0x00,0x92,0x12,0x51,0x04,0x01,0x00,
+ 0x10,0x06,0x01,0xff,0x6b,0x00,0x01,0xff,0x61,0xcc,0x8a,0x00,0x01,0x00,0xe3,0x25,
+ 0x5d,0x92,0x10,0x51,0x04,0x01,0x00,0x10,0x08,0x01,0xff,0xe2,0x85,0x8e,0x00,0x01,
+ 0x00,0x01,0x00,0xcf,0x86,0xd5,0x0a,0xe4,0x42,0x5d,0x63,0x2d,0x5d,0x06,0x00,0x94,
+ 0x80,0xd3,0x40,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0xe2,0x85,0xb0,0x00,0x01,
+ 0xff,0xe2,0x85,0xb1,0x00,0x10,0x08,0x01,0xff,0xe2,0x85,0xb2,0x00,0x01,0xff,0xe2,
+ 0x85,0xb3,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0xe2,0x85,0xb4,0x00,0x01,0xff,0xe2,
+ 0x85,0xb5,0x00,0x10,0x08,0x01,0xff,0xe2,0x85,0xb6,0x00,0x01,0xff,0xe2,0x85,0xb7,
+ 0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0xe2,0x85,0xb8,0x00,0x01,0xff,0xe2,
+ 0x85,0xb9,0x00,0x10,0x08,0x01,0xff,0xe2,0x85,0xba,0x00,0x01,0xff,0xe2,0x85,0xbb,
+ 0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0xe2,0x85,0xbc,0x00,0x01,0xff,0xe2,0x85,0xbd,
+ 0x00,0x10,0x08,0x01,0xff,0xe2,0x85,0xbe,0x00,0x01,0xff,0xe2,0x85,0xbf,0x00,0x01,
+ 0x00,0xe0,0x34,0x5d,0xcf,0x86,0xe5,0x13,0x5d,0xe4,0xf2,0x5c,0xe3,0xe1,0x5c,0xe2,
+ 0xd4,0x5c,0x51,0x04,0x01,0x00,0x10,0x04,0x01,0x00,0x04,0xff,0xe2,0x86,0x84,0x00,
+ 0xe3,0x23,0x61,0xe2,0xf0,0x60,0xd1,0x0c,0xe0,0x9d,0x60,0xcf,0x86,0x65,0x7e,0x60,
+ 0x01,0x00,0xd0,0x62,0xcf,0x86,0x55,0x04,0x01,0x00,0x54,0x04,0x01,0x00,0xd3,0x18,
+ 0x52,0x04,0x01,0x00,0x51,0x04,0x01,0x00,0x10,0x08,0x01,0xff,0xe2,0x93,0x90,0x00,
+ 0x01,0xff,0xe2,0x93,0x91,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0xe2,0x93,
+ 0x92,0x00,0x01,0xff,0xe2,0x93,0x93,0x00,0x10,0x08,0x01,0xff,0xe2,0x93,0x94,0x00,
+ 0x01,0xff,0xe2,0x93,0x95,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0xe2,0x93,0x96,0x00,
+ 0x01,0xff,0xe2,0x93,0x97,0x00,0x10,0x08,0x01,0xff,0xe2,0x93,0x98,0x00,0x01,0xff,
+ 0xe2,0x93,0x99,0x00,0xcf,0x86,0xe5,0x57,0x60,0x94,0x80,0xd3,0x40,0xd2,0x20,0xd1,
+ 0x10,0x10,0x08,0x01,0xff,0xe2,0x93,0x9a,0x00,0x01,0xff,0xe2,0x93,0x9b,0x00,0x10,
+ 0x08,0x01,0xff,0xe2,0x93,0x9c,0x00,0x01,0xff,0xe2,0x93,0x9d,0x00,0xd1,0x10,0x10,
+ 0x08,0x01,0xff,0xe2,0x93,0x9e,0x00,0x01,0xff,0xe2,0x93,0x9f,0x00,0x10,0x08,0x01,
+ 0xff,0xe2,0x93,0xa0,0x00,0x01,0xff,0xe2,0x93,0xa1,0x00,0xd2,0x20,0xd1,0x10,0x10,
+ 0x08,0x01,0xff,0xe2,0x93,0xa2,0x00,0x01,0xff,0xe2,0x93,0xa3,0x00,0x10,0x08,0x01,
+ 0xff,0xe2,0x93,0xa4,0x00,0x01,0xff,0xe2,0x93,0xa5,0x00,0xd1,0x10,0x10,0x08,0x01,
+ 0xff,0xe2,0x93,0xa6,0x00,0x01,0xff,0xe2,0x93,0xa7,0x00,0x10,0x08,0x01,0xff,0xe2,
+ 0x93,0xa8,0x00,0x01,0xff,0xe2,0x93,0xa9,0x00,0x01,0x00,0xd4,0x0c,0xe3,0x33,0x62,
+ 0xe2,0x2c,0x62,0xcf,0x06,0x04,0x00,0xe3,0x0c,0x65,0xe2,0xff,0x63,0xe1,0x2e,0x02,
+ 0xe0,0x84,0x01,0xcf,0x86,0xe5,0x01,0x01,0xd4,0x80,0xd3,0x40,0xd2,0x20,0xd1,0x10,
+ 0x10,0x08,0x08,0xff,0xe2,0xb0,0xb0,0x00,0x08,0xff,0xe2,0xb0,0xb1,0x00,0x10,0x08,
+ 0x08,0xff,0xe2,0xb0,0xb2,0x00,0x08,0xff,0xe2,0xb0,0xb3,0x00,0xd1,0x10,0x10,0x08,
+ 0x08,0xff,0xe2,0xb0,0xb4,0x00,0x08,0xff,0xe2,0xb0,0xb5,0x00,0x10,0x08,0x08,0xff,
+ 0xe2,0xb0,0xb6,0x00,0x08,0xff,0xe2,0xb0,0xb7,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,
+ 0x08,0xff,0xe2,0xb0,0xb8,0x00,0x08,0xff,0xe2,0xb0,0xb9,0x00,0x10,0x08,0x08,0xff,
+ 0xe2,0xb0,0xba,0x00,0x08,0xff,0xe2,0xb0,0xbb,0x00,0xd1,0x10,0x10,0x08,0x08,0xff,
+ 0xe2,0xb0,0xbc,0x00,0x08,0xff,0xe2,0xb0,0xbd,0x00,0x10,0x08,0x08,0xff,0xe2,0xb0,
+ 0xbe,0x00,0x08,0xff,0xe2,0xb0,0xbf,0x00,0xd3,0x40,0xd2,0x20,0xd1,0x10,0x10,0x08,
+ 0x08,0xff,0xe2,0xb1,0x80,0x00,0x08,0xff,0xe2,0xb1,0x81,0x00,0x10,0x08,0x08,0xff,
+ 0xe2,0xb1,0x82,0x00,0x08,0xff,0xe2,0xb1,0x83,0x00,0xd1,0x10,0x10,0x08,0x08,0xff,
+ 0xe2,0xb1,0x84,0x00,0x08,0xff,0xe2,0xb1,0x85,0x00,0x10,0x08,0x08,0xff,0xe2,0xb1,
+ 0x86,0x00,0x08,0xff,0xe2,0xb1,0x87,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x08,0xff,
+ 0xe2,0xb1,0x88,0x00,0x08,0xff,0xe2,0xb1,0x89,0x00,0x10,0x08,0x08,0xff,0xe2,0xb1,
+ 0x8a,0x00,0x08,0xff,0xe2,0xb1,0x8b,0x00,0xd1,0x10,0x10,0x08,0x08,0xff,0xe2,0xb1,
+ 0x8c,0x00,0x08,0xff,0xe2,0xb1,0x8d,0x00,0x10,0x08,0x08,0xff,0xe2,0xb1,0x8e,0x00,
+ 0x08,0xff,0xe2,0xb1,0x8f,0x00,0x94,0x7c,0xd3,0x40,0xd2,0x20,0xd1,0x10,0x10,0x08,
+ 0x08,0xff,0xe2,0xb1,0x90,0x00,0x08,0xff,0xe2,0xb1,0x91,0x00,0x10,0x08,0x08,0xff,
+ 0xe2,0xb1,0x92,0x00,0x08,0xff,0xe2,0xb1,0x93,0x00,0xd1,0x10,0x10,0x08,0x08,0xff,
+ 0xe2,0xb1,0x94,0x00,0x08,0xff,0xe2,0xb1,0x95,0x00,0x10,0x08,0x08,0xff,0xe2,0xb1,
+ 0x96,0x00,0x08,0xff,0xe2,0xb1,0x97,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x08,0xff,
+ 0xe2,0xb1,0x98,0x00,0x08,0xff,0xe2,0xb1,0x99,0x00,0x10,0x08,0x08,0xff,0xe2,0xb1,
+ 0x9a,0x00,0x08,0xff,0xe2,0xb1,0x9b,0x00,0xd1,0x10,0x10,0x08,0x08,0xff,0xe2,0xb1,
+ 0x9c,0x00,0x08,0xff,0xe2,0xb1,0x9d,0x00,0x10,0x08,0x08,0xff,0xe2,0xb1,0x9e,0x00,
+ 0x00,0x00,0x08,0x00,0xcf,0x86,0xd5,0x07,0x64,0xef,0x61,0x08,0x00,0xd4,0x63,0xd3,
+ 0x32,0xd2,0x1b,0xd1,0x0c,0x10,0x08,0x09,0xff,0xe2,0xb1,0xa1,0x00,0x09,0x00,0x10,
+ 0x07,0x09,0xff,0xc9,0xab,0x00,0x09,0xff,0xe1,0xb5,0xbd,0x00,0xd1,0x0b,0x10,0x07,
+ 0x09,0xff,0xc9,0xbd,0x00,0x09,0x00,0x10,0x04,0x09,0x00,0x09,0xff,0xe2,0xb1,0xa8,
+ 0x00,0xd2,0x18,0xd1,0x0c,0x10,0x04,0x09,0x00,0x09,0xff,0xe2,0xb1,0xaa,0x00,0x10,
+ 0x04,0x09,0x00,0x09,0xff,0xe2,0xb1,0xac,0x00,0xd1,0x0b,0x10,0x04,0x09,0x00,0x0a,
+ 0xff,0xc9,0x91,0x00,0x10,0x07,0x0a,0xff,0xc9,0xb1,0x00,0x0a,0xff,0xc9,0x90,0x00,
+ 0xd3,0x27,0xd2,0x17,0xd1,0x0b,0x10,0x07,0x0b,0xff,0xc9,0x92,0x00,0x0a,0x00,0x10,
+ 0x08,0x0a,0xff,0xe2,0xb1,0xb3,0x00,0x0a,0x00,0x91,0x0c,0x10,0x04,0x09,0x00,0x09,
+ 0xff,0xe2,0xb1,0xb6,0x00,0x09,0x00,0x52,0x04,0x0a,0x00,0x51,0x04,0x0a,0x00,0x10,
+ 0x07,0x0b,0xff,0xc8,0xbf,0x00,0x0b,0xff,0xc9,0x80,0x00,0xe0,0x83,0x01,0xcf,0x86,
+ 0xd5,0xc0,0xd4,0x60,0xd3,0x30,0xd2,0x18,0xd1,0x0c,0x10,0x08,0x08,0xff,0xe2,0xb2,
+ 0x81,0x00,0x08,0x00,0x10,0x08,0x08,0xff,0xe2,0xb2,0x83,0x00,0x08,0x00,0xd1,0x0c,
+ 0x10,0x08,0x08,0xff,0xe2,0xb2,0x85,0x00,0x08,0x00,0x10,0x08,0x08,0xff,0xe2,0xb2,
+ 0x87,0x00,0x08,0x00,0xd2,0x18,0xd1,0x0c,0x10,0x08,0x08,0xff,0xe2,0xb2,0x89,0x00,
+ 0x08,0x00,0x10,0x08,0x08,0xff,0xe2,0xb2,0x8b,0x00,0x08,0x00,0xd1,0x0c,0x10,0x08,
+ 0x08,0xff,0xe2,0xb2,0x8d,0x00,0x08,0x00,0x10,0x08,0x08,0xff,0xe2,0xb2,0x8f,0x00,
+ 0x08,0x00,0xd3,0x30,0xd2,0x18,0xd1,0x0c,0x10,0x08,0x08,0xff,0xe2,0xb2,0x91,0x00,
+ 0x08,0x00,0x10,0x08,0x08,0xff,0xe2,0xb2,0x93,0x00,0x08,0x00,0xd1,0x0c,0x10,0x08,
+ 0x08,0xff,0xe2,0xb2,0x95,0x00,0x08,0x00,0x10,0x08,0x08,0xff,0xe2,0xb2,0x97,0x00,
+ 0x08,0x00,0xd2,0x18,0xd1,0x0c,0x10,0x08,0x08,0xff,0xe2,0xb2,0x99,0x00,0x08,0x00,
+ 0x10,0x08,0x08,0xff,0xe2,0xb2,0x9b,0x00,0x08,0x00,0xd1,0x0c,0x10,0x08,0x08,0xff,
+ 0xe2,0xb2,0x9d,0x00,0x08,0x00,0x10,0x08,0x08,0xff,0xe2,0xb2,0x9f,0x00,0x08,0x00,
+ 0xd4,0x60,0xd3,0x30,0xd2,0x18,0xd1,0x0c,0x10,0x08,0x08,0xff,0xe2,0xb2,0xa1,0x00,
+ 0x08,0x00,0x10,0x08,0x08,0xff,0xe2,0xb2,0xa3,0x00,0x08,0x00,0xd1,0x0c,0x10,0x08,
+ 0x08,0xff,0xe2,0xb2,0xa5,0x00,0x08,0x00,0x10,0x08,0x08,0xff,0xe2,0xb2,0xa7,0x00,
+ 0x08,0x00,0xd2,0x18,0xd1,0x0c,0x10,0x08,0x08,0xff,0xe2,0xb2,0xa9,0x00,0x08,0x00,
+ 0x10,0x08,0x08,0xff,0xe2,0xb2,0xab,0x00,0x08,0x00,0xd1,0x0c,0x10,0x08,0x08,0xff,
+ 0xe2,0xb2,0xad,0x00,0x08,0x00,0x10,0x08,0x08,0xff,0xe2,0xb2,0xaf,0x00,0x08,0x00,
+ 0xd3,0x30,0xd2,0x18,0xd1,0x0c,0x10,0x08,0x08,0xff,0xe2,0xb2,0xb1,0x00,0x08,0x00,
+ 0x10,0x08,0x08,0xff,0xe2,0xb2,0xb3,0x00,0x08,0x00,0xd1,0x0c,0x10,0x08,0x08,0xff,
+ 0xe2,0xb2,0xb5,0x00,0x08,0x00,0x10,0x08,0x08,0xff,0xe2,0xb2,0xb7,0x00,0x08,0x00,
+ 0xd2,0x18,0xd1,0x0c,0x10,0x08,0x08,0xff,0xe2,0xb2,0xb9,0x00,0x08,0x00,0x10,0x08,
+ 0x08,0xff,0xe2,0xb2,0xbb,0x00,0x08,0x00,0xd1,0x0c,0x10,0x08,0x08,0xff,0xe2,0xb2,
+ 0xbd,0x00,0x08,0x00,0x10,0x08,0x08,0xff,0xe2,0xb2,0xbf,0x00,0x08,0x00,0xcf,0x86,
+ 0xd5,0xc0,0xd4,0x60,0xd3,0x30,0xd2,0x18,0xd1,0x0c,0x10,0x08,0x08,0xff,0xe2,0xb3,
+ 0x81,0x00,0x08,0x00,0x10,0x08,0x08,0xff,0xe2,0xb3,0x83,0x00,0x08,0x00,0xd1,0x0c,
+ 0x10,0x08,0x08,0xff,0xe2,0xb3,0x85,0x00,0x08,0x00,0x10,0x08,0x08,0xff,0xe2,0xb3,
+ 0x87,0x00,0x08,0x00,0xd2,0x18,0xd1,0x0c,0x10,0x08,0x08,0xff,0xe2,0xb3,0x89,0x00,
+ 0x08,0x00,0x10,0x08,0x08,0xff,0xe2,0xb3,0x8b,0x00,0x08,0x00,0xd1,0x0c,0x10,0x08,
+ 0x08,0xff,0xe2,0xb3,0x8d,0x00,0x08,0x00,0x10,0x08,0x08,0xff,0xe2,0xb3,0x8f,0x00,
+ 0x08,0x00,0xd3,0x30,0xd2,0x18,0xd1,0x0c,0x10,0x08,0x08,0xff,0xe2,0xb3,0x91,0x00,
+ 0x08,0x00,0x10,0x08,0x08,0xff,0xe2,0xb3,0x93,0x00,0x08,0x00,0xd1,0x0c,0x10,0x08,
+ 0x08,0xff,0xe2,0xb3,0x95,0x00,0x08,0x00,0x10,0x08,0x08,0xff,0xe2,0xb3,0x97,0x00,
+ 0x08,0x00,0xd2,0x18,0xd1,0x0c,0x10,0x08,0x08,0xff,0xe2,0xb3,0x99,0x00,0x08,0x00,
+ 0x10,0x08,0x08,0xff,0xe2,0xb3,0x9b,0x00,0x08,0x00,0xd1,0x0c,0x10,0x08,0x08,0xff,
+ 0xe2,0xb3,0x9d,0x00,0x08,0x00,0x10,0x08,0x08,0xff,0xe2,0xb3,0x9f,0x00,0x08,0x00,
+ 0xd4,0x3b,0xd3,0x1c,0x92,0x18,0xd1,0x0c,0x10,0x08,0x08,0xff,0xe2,0xb3,0xa1,0x00,
+ 0x08,0x00,0x10,0x08,0x08,0xff,0xe2,0xb3,0xa3,0x00,0x08,0x00,0x08,0x00,0xd2,0x10,
+ 0x51,0x04,0x08,0x00,0x10,0x04,0x08,0x00,0x0b,0xff,0xe2,0xb3,0xac,0x00,0xe1,0x3b,
+ 0x5f,0x10,0x04,0x0b,0x00,0x0b,0xff,0xe2,0xb3,0xae,0x00,0xe3,0x40,0x5f,0x92,0x10,
+ 0x51,0x04,0x0b,0xe6,0x10,0x08,0x0d,0xff,0xe2,0xb3,0xb3,0x00,0x0d,0x00,0x00,0x00,
+ 0xe2,0x98,0x08,0xd1,0x0b,0xe0,0x11,0x67,0xcf,0x86,0xcf,0x06,0x01,0x00,0xe0,0x65,
+ 0x6c,0xcf,0x86,0xe5,0xa7,0x05,0xd4,0x06,0xcf,0x06,0x04,0x00,0xd3,0x0c,0xe2,0xf8,
+ 0x67,0xe1,0x8f,0x67,0xcf,0x06,0x04,0x00,0xe2,0xdb,0x01,0xe1,0x26,0x01,0xd0,0x09,
+ 0xcf,0x86,0x65,0xf4,0x67,0x0a,0x00,0xcf,0x86,0xd5,0xc0,0xd4,0x60,0xd3,0x30,0xd2,
+ 0x18,0xd1,0x0c,0x10,0x08,0x0a,0xff,0xea,0x99,0x81,0x00,0x0a,0x00,0x10,0x08,0x0a,
+ 0xff,0xea,0x99,0x83,0x00,0x0a,0x00,0xd1,0x0c,0x10,0x08,0x0a,0xff,0xea,0x99,0x85,
+ 0x00,0x0a,0x00,0x10,0x08,0x0a,0xff,0xea,0x99,0x87,0x00,0x0a,0x00,0xd2,0x18,0xd1,
+ 0x0c,0x10,0x08,0x0a,0xff,0xea,0x99,0x89,0x00,0x0a,0x00,0x10,0x08,0x0a,0xff,0xea,
+ 0x99,0x8b,0x00,0x0a,0x00,0xd1,0x0c,0x10,0x08,0x0a,0xff,0xea,0x99,0x8d,0x00,0x0a,
+ 0x00,0x10,0x08,0x0a,0xff,0xea,0x99,0x8f,0x00,0x0a,0x00,0xd3,0x30,0xd2,0x18,0xd1,
+ 0x0c,0x10,0x08,0x0a,0xff,0xea,0x99,0x91,0x00,0x0a,0x00,0x10,0x08,0x0a,0xff,0xea,
+ 0x99,0x93,0x00,0x0a,0x00,0xd1,0x0c,0x10,0x08,0x0a,0xff,0xea,0x99,0x95,0x00,0x0a,
+ 0x00,0x10,0x08,0x0a,0xff,0xea,0x99,0x97,0x00,0x0a,0x00,0xd2,0x18,0xd1,0x0c,0x10,
+ 0x08,0x0a,0xff,0xea,0x99,0x99,0x00,0x0a,0x00,0x10,0x08,0x0a,0xff,0xea,0x99,0x9b,
+ 0x00,0x0a,0x00,0xd1,0x0c,0x10,0x08,0x0a,0xff,0xea,0x99,0x9d,0x00,0x0a,0x00,0x10,
+ 0x08,0x0a,0xff,0xea,0x99,0x9f,0x00,0x0a,0x00,0xe4,0x5d,0x67,0xd3,0x30,0xd2,0x18,
+ 0xd1,0x0c,0x10,0x08,0x0c,0xff,0xea,0x99,0xa1,0x00,0x0c,0x00,0x10,0x08,0x0a,0xff,
+ 0xea,0x99,0xa3,0x00,0x0a,0x00,0xd1,0x0c,0x10,0x08,0x0a,0xff,0xea,0x99,0xa5,0x00,
+ 0x0a,0x00,0x10,0x08,0x0a,0xff,0xea,0x99,0xa7,0x00,0x0a,0x00,0xd2,0x18,0xd1,0x0c,
+ 0x10,0x08,0x0a,0xff,0xea,0x99,0xa9,0x00,0x0a,0x00,0x10,0x08,0x0a,0xff,0xea,0x99,
+ 0xab,0x00,0x0a,0x00,0xe1,0x0c,0x67,0x10,0x08,0x0a,0xff,0xea,0x99,0xad,0x00,0x0a,
+ 0x00,0xe0,0x35,0x67,0xcf,0x86,0x95,0xab,0xd4,0x60,0xd3,0x30,0xd2,0x18,0xd1,0x0c,
+ 0x10,0x08,0x0a,0xff,0xea,0x9a,0x81,0x00,0x0a,0x00,0x10,0x08,0x0a,0xff,0xea,0x9a,
+ 0x83,0x00,0x0a,0x00,0xd1,0x0c,0x10,0x08,0x0a,0xff,0xea,0x9a,0x85,0x00,0x0a,0x00,
+ 0x10,0x08,0x0a,0xff,0xea,0x9a,0x87,0x00,0x0a,0x00,0xd2,0x18,0xd1,0x0c,0x10,0x08,
+ 0x0a,0xff,0xea,0x9a,0x89,0x00,0x0a,0x00,0x10,0x08,0x0a,0xff,0xea,0x9a,0x8b,0x00,
+ 0x0a,0x00,0xd1,0x0c,0x10,0x08,0x0a,0xff,0xea,0x9a,0x8d,0x00,0x0a,0x00,0x10,0x08,
+ 0x0a,0xff,0xea,0x9a,0x8f,0x00,0x0a,0x00,0xd3,0x30,0xd2,0x18,0xd1,0x0c,0x10,0x08,
+ 0x0a,0xff,0xea,0x9a,0x91,0x00,0x0a,0x00,0x10,0x08,0x0a,0xff,0xea,0x9a,0x93,0x00,
+ 0x0a,0x00,0xd1,0x0c,0x10,0x08,0x0a,0xff,0xea,0x9a,0x95,0x00,0x0a,0x00,0x10,0x08,
+ 0x0a,0xff,0xea,0x9a,0x97,0x00,0x0a,0x00,0xe2,0x92,0x66,0xd1,0x0c,0x10,0x08,0x10,
+ 0xff,0xea,0x9a,0x99,0x00,0x10,0x00,0x10,0x08,0x10,0xff,0xea,0x9a,0x9b,0x00,0x10,
+ 0x00,0x0b,0x00,0xe1,0x10,0x02,0xd0,0xb9,0xcf,0x86,0xd5,0x07,0x64,0x9e,0x66,0x08,
+ 0x00,0xd4,0x58,0xd3,0x28,0xd2,0x10,0x51,0x04,0x09,0x00,0x10,0x08,0x0a,0xff,0xea,
+ 0x9c,0xa3,0x00,0x0a,0x00,0xd1,0x0c,0x10,0x08,0x0a,0xff,0xea,0x9c,0xa5,0x00,0x0a,
+ 0x00,0x10,0x08,0x0a,0xff,0xea,0x9c,0xa7,0x00,0x0a,0x00,0xd2,0x18,0xd1,0x0c,0x10,
+ 0x08,0x0a,0xff,0xea,0x9c,0xa9,0x00,0x0a,0x00,0x10,0x08,0x0a,0xff,0xea,0x9c,0xab,
+ 0x00,0x0a,0x00,0xd1,0x0c,0x10,0x08,0x0a,0xff,0xea,0x9c,0xad,0x00,0x0a,0x00,0x10,
+ 0x08,0x0a,0xff,0xea,0x9c,0xaf,0x00,0x0a,0x00,0xd3,0x28,0xd2,0x10,0x51,0x04,0x0a,
+ 0x00,0x10,0x08,0x0a,0xff,0xea,0x9c,0xb3,0x00,0x0a,0x00,0xd1,0x0c,0x10,0x08,0x0a,
+ 0xff,0xea,0x9c,0xb5,0x00,0x0a,0x00,0x10,0x08,0x0a,0xff,0xea,0x9c,0xb7,0x00,0x0a,
+ 0x00,0xd2,0x18,0xd1,0x0c,0x10,0x08,0x0a,0xff,0xea,0x9c,0xb9,0x00,0x0a,0x00,0x10,
+ 0x08,0x0a,0xff,0xea,0x9c,0xbb,0x00,0x0a,0x00,0xd1,0x0c,0x10,0x08,0x0a,0xff,0xea,
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+ 0x01,0xff,0xef,0xbd,0x92,0x00,0x01,0xff,0xef,0xbd,0x93,0x00,0xd1,0x10,0x10,0x08,
+ 0x01,0xff,0xef,0xbd,0x94,0x00,0x01,0xff,0xef,0xbd,0x95,0x00,0x10,0x08,0x01,0xff,
+ 0xef,0xbd,0x96,0x00,0x01,0xff,0xef,0xbd,0x97,0x00,0x92,0x1c,0xd1,0x10,0x10,0x08,
+ 0x01,0xff,0xef,0xbd,0x98,0x00,0x01,0xff,0xef,0xbd,0x99,0x00,0x10,0x08,0x01,0xff,
+ 0xef,0xbd,0x9a,0x00,0x01,0x00,0x01,0x00,0x83,0xe2,0x87,0xb3,0xe1,0x60,0xb0,0xe0,
+ 0xdd,0xae,0xcf,0x86,0xe5,0x81,0x9b,0xc4,0xe3,0xc1,0x07,0xe2,0x62,0x06,0xe1,0x11,
+ 0x86,0xe0,0x09,0x05,0xcf,0x86,0xe5,0xfb,0x02,0xd4,0x1c,0xe3,0x7f,0x76,0xe2,0xd6,
+ 0x75,0xe1,0xb1,0x75,0xe0,0x8a,0x75,0xcf,0x86,0xe5,0x57,0x75,0x94,0x07,0x63,0x42,
+ 0x75,0x07,0x00,0x07,0x00,0xe3,0x2b,0x78,0xe2,0xf0,0x77,0xe1,0x77,0x01,0xe0,0x88,
+ 0x77,0xcf,0x86,0xe5,0x21,0x01,0xd4,0x90,0xd3,0x48,0xd2,0x24,0xd1,0x12,0x10,0x09,
+ 0x05,0xff,0xf0,0x90,0x90,0xa8,0x00,0x05,0xff,0xf0,0x90,0x90,0xa9,0x00,0x10,0x09,
+ 0x05,0xff,0xf0,0x90,0x90,0xaa,0x00,0x05,0xff,0xf0,0x90,0x90,0xab,0x00,0xd1,0x12,
+ 0x10,0x09,0x05,0xff,0xf0,0x90,0x90,0xac,0x00,0x05,0xff,0xf0,0x90,0x90,0xad,0x00,
+ 0x10,0x09,0x05,0xff,0xf0,0x90,0x90,0xae,0x00,0x05,0xff,0xf0,0x90,0x90,0xaf,0x00,
+ 0xd2,0x24,0xd1,0x12,0x10,0x09,0x05,0xff,0xf0,0x90,0x90,0xb0,0x00,0x05,0xff,0xf0,
+ 0x90,0x90,0xb1,0x00,0x10,0x09,0x05,0xff,0xf0,0x90,0x90,0xb2,0x00,0x05,0xff,0xf0,
+ 0x90,0x90,0xb3,0x00,0xd1,0x12,0x10,0x09,0x05,0xff,0xf0,0x90,0x90,0xb4,0x00,0x05,
+ 0xff,0xf0,0x90,0x90,0xb5,0x00,0x10,0x09,0x05,0xff,0xf0,0x90,0x90,0xb6,0x00,0x05,
+ 0xff,0xf0,0x90,0x90,0xb7,0x00,0xd3,0x48,0xd2,0x24,0xd1,0x12,0x10,0x09,0x05,0xff,
+ 0xf0,0x90,0x90,0xb8,0x00,0x05,0xff,0xf0,0x90,0x90,0xb9,0x00,0x10,0x09,0x05,0xff,
+ 0xf0,0x90,0x90,0xba,0x00,0x05,0xff,0xf0,0x90,0x90,0xbb,0x00,0xd1,0x12,0x10,0x09,
+ 0x05,0xff,0xf0,0x90,0x90,0xbc,0x00,0x05,0xff,0xf0,0x90,0x90,0xbd,0x00,0x10,0x09,
+ 0x05,0xff,0xf0,0x90,0x90,0xbe,0x00,0x05,0xff,0xf0,0x90,0x90,0xbf,0x00,0xd2,0x24,
+ 0xd1,0x12,0x10,0x09,0x05,0xff,0xf0,0x90,0x91,0x80,0x00,0x05,0xff,0xf0,0x90,0x91,
+ 0x81,0x00,0x10,0x09,0x05,0xff,0xf0,0x90,0x91,0x82,0x00,0x05,0xff,0xf0,0x90,0x91,
+ 0x83,0x00,0xd1,0x12,0x10,0x09,0x05,0xff,0xf0,0x90,0x91,0x84,0x00,0x05,0xff,0xf0,
+ 0x90,0x91,0x85,0x00,0x10,0x09,0x05,0xff,0xf0,0x90,0x91,0x86,0x00,0x05,0xff,0xf0,
+ 0x90,0x91,0x87,0x00,0x94,0x4c,0x93,0x48,0xd2,0x24,0xd1,0x12,0x10,0x09,0x05,0xff,
+ 0xf0,0x90,0x91,0x88,0x00,0x05,0xff,0xf0,0x90,0x91,0x89,0x00,0x10,0x09,0x05,0xff,
+ 0xf0,0x90,0x91,0x8a,0x00,0x05,0xff,0xf0,0x90,0x91,0x8b,0x00,0xd1,0x12,0x10,0x09,
+ 0x05,0xff,0xf0,0x90,0x91,0x8c,0x00,0x05,0xff,0xf0,0x90,0x91,0x8d,0x00,0x10,0x09,
+ 0x07,0xff,0xf0,0x90,0x91,0x8e,0x00,0x07,0xff,0xf0,0x90,0x91,0x8f,0x00,0x05,0x00,
+ 0x05,0x00,0xd0,0xa0,0xcf,0x86,0xd5,0x07,0x64,0x30,0x76,0x07,0x00,0xd4,0x07,0x63,
+ 0x3d,0x76,0x07,0x00,0xd3,0x48,0xd2,0x24,0xd1,0x12,0x10,0x09,0x12,0xff,0xf0,0x90,
+ 0x93,0x98,0x00,0x12,0xff,0xf0,0x90,0x93,0x99,0x00,0x10,0x09,0x12,0xff,0xf0,0x90,
+ 0x93,0x9a,0x00,0x12,0xff,0xf0,0x90,0x93,0x9b,0x00,0xd1,0x12,0x10,0x09,0x12,0xff,
+ 0xf0,0x90,0x93,0x9c,0x00,0x12,0xff,0xf0,0x90,0x93,0x9d,0x00,0x10,0x09,0x12,0xff,
+ 0xf0,0x90,0x93,0x9e,0x00,0x12,0xff,0xf0,0x90,0x93,0x9f,0x00,0xd2,0x24,0xd1,0x12,
+ 0x10,0x09,0x12,0xff,0xf0,0x90,0x93,0xa0,0x00,0x12,0xff,0xf0,0x90,0x93,0xa1,0x00,
+ 0x10,0x09,0x12,0xff,0xf0,0x90,0x93,0xa2,0x00,0x12,0xff,0xf0,0x90,0x93,0xa3,0x00,
+ 0xd1,0x12,0x10,0x09,0x12,0xff,0xf0,0x90,0x93,0xa4,0x00,0x12,0xff,0xf0,0x90,0x93,
+ 0xa5,0x00,0x10,0x09,0x12,0xff,0xf0,0x90,0x93,0xa6,0x00,0x12,0xff,0xf0,0x90,0x93,
+ 0xa7,0x00,0xcf,0x86,0xe5,0xc6,0x75,0xd4,0x90,0xd3,0x48,0xd2,0x24,0xd1,0x12,0x10,
+ 0x09,0x12,0xff,0xf0,0x90,0x93,0xa8,0x00,0x12,0xff,0xf0,0x90,0x93,0xa9,0x00,0x10,
+ 0x09,0x12,0xff,0xf0,0x90,0x93,0xaa,0x00,0x12,0xff,0xf0,0x90,0x93,0xab,0x00,0xd1,
+ 0x12,0x10,0x09,0x12,0xff,0xf0,0x90,0x93,0xac,0x00,0x12,0xff,0xf0,0x90,0x93,0xad,
+ 0x00,0x10,0x09,0x12,0xff,0xf0,0x90,0x93,0xae,0x00,0x12,0xff,0xf0,0x90,0x93,0xaf,
+ 0x00,0xd2,0x24,0xd1,0x12,0x10,0x09,0x12,0xff,0xf0,0x90,0x93,0xb0,0x00,0x12,0xff,
+ 0xf0,0x90,0x93,0xb1,0x00,0x10,0x09,0x12,0xff,0xf0,0x90,0x93,0xb2,0x00,0x12,0xff,
+ 0xf0,0x90,0x93,0xb3,0x00,0xd1,0x12,0x10,0x09,0x12,0xff,0xf0,0x90,0x93,0xb4,0x00,
+ 0x12,0xff,0xf0,0x90,0x93,0xb5,0x00,0x10,0x09,0x12,0xff,0xf0,0x90,0x93,0xb6,0x00,
+ 0x12,0xff,0xf0,0x90,0x93,0xb7,0x00,0x93,0x28,0x92,0x24,0xd1,0x12,0x10,0x09,0x12,
+ 0xff,0xf0,0x90,0x93,0xb8,0x00,0x12,0xff,0xf0,0x90,0x93,0xb9,0x00,0x10,0x09,0x12,
+ 0xff,0xf0,0x90,0x93,0xba,0x00,0x12,0xff,0xf0,0x90,0x93,0xbb,0x00,0x00,0x00,0x12,
+ 0x00,0xd4,0x1f,0xe3,0xdf,0x76,0xe2,0x6a,0x76,0xe1,0x09,0x76,0xe0,0xea,0x75,0xcf,
+ 0x86,0xe5,0xb7,0x75,0x94,0x0a,0xe3,0xa2,0x75,0x62,0x99,0x75,0x07,0x00,0x07,0x00,
+ 0xe3,0xde,0x78,0xe2,0xaf,0x78,0xd1,0x09,0xe0,0x4c,0x78,0xcf,0x06,0x0b,0x00,0xe0,
+ 0x7f,0x78,0xcf,0x86,0xe5,0x21,0x01,0xd4,0x90,0xd3,0x48,0xd2,0x24,0xd1,0x12,0x10,
+ 0x09,0x11,0xff,0xf0,0x90,0xb3,0x80,0x00,0x11,0xff,0xf0,0x90,0xb3,0x81,0x00,0x10,
+ 0x09,0x11,0xff,0xf0,0x90,0xb3,0x82,0x00,0x11,0xff,0xf0,0x90,0xb3,0x83,0x00,0xd1,
+ 0x12,0x10,0x09,0x11,0xff,0xf0,0x90,0xb3,0x84,0x00,0x11,0xff,0xf0,0x90,0xb3,0x85,
+ 0x00,0x10,0x09,0x11,0xff,0xf0,0x90,0xb3,0x86,0x00,0x11,0xff,0xf0,0x90,0xb3,0x87,
+ 0x00,0xd2,0x24,0xd1,0x12,0x10,0x09,0x11,0xff,0xf0,0x90,0xb3,0x88,0x00,0x11,0xff,
+ 0xf0,0x90,0xb3,0x89,0x00,0x10,0x09,0x11,0xff,0xf0,0x90,0xb3,0x8a,0x00,0x11,0xff,
+ 0xf0,0x90,0xb3,0x8b,0x00,0xd1,0x12,0x10,0x09,0x11,0xff,0xf0,0x90,0xb3,0x8c,0x00,
+ 0x11,0xff,0xf0,0x90,0xb3,0x8d,0x00,0x10,0x09,0x11,0xff,0xf0,0x90,0xb3,0x8e,0x00,
+ 0x11,0xff,0xf0,0x90,0xb3,0x8f,0x00,0xd3,0x48,0xd2,0x24,0xd1,0x12,0x10,0x09,0x11,
+ 0xff,0xf0,0x90,0xb3,0x90,0x00,0x11,0xff,0xf0,0x90,0xb3,0x91,0x00,0x10,0x09,0x11,
+ 0xff,0xf0,0x90,0xb3,0x92,0x00,0x11,0xff,0xf0,0x90,0xb3,0x93,0x00,0xd1,0x12,0x10,
+ 0x09,0x11,0xff,0xf0,0x90,0xb3,0x94,0x00,0x11,0xff,0xf0,0x90,0xb3,0x95,0x00,0x10,
+ 0x09,0x11,0xff,0xf0,0x90,0xb3,0x96,0x00,0x11,0xff,0xf0,0x90,0xb3,0x97,0x00,0xd2,
+ 0x24,0xd1,0x12,0x10,0x09,0x11,0xff,0xf0,0x90,0xb3,0x98,0x00,0x11,0xff,0xf0,0x90,
+ 0xb3,0x99,0x00,0x10,0x09,0x11,0xff,0xf0,0x90,0xb3,0x9a,0x00,0x11,0xff,0xf0,0x90,
+ 0xb3,0x9b,0x00,0xd1,0x12,0x10,0x09,0x11,0xff,0xf0,0x90,0xb3,0x9c,0x00,0x11,0xff,
+ 0xf0,0x90,0xb3,0x9d,0x00,0x10,0x09,0x11,0xff,0xf0,0x90,0xb3,0x9e,0x00,0x11,0xff,
+ 0xf0,0x90,0xb3,0x9f,0x00,0xd4,0x90,0xd3,0x48,0xd2,0x24,0xd1,0x12,0x10,0x09,0x11,
+ 0xff,0xf0,0x90,0xb3,0xa0,0x00,0x11,0xff,0xf0,0x90,0xb3,0xa1,0x00,0x10,0x09,0x11,
+ 0xff,0xf0,0x90,0xb3,0xa2,0x00,0x11,0xff,0xf0,0x90,0xb3,0xa3,0x00,0xd1,0x12,0x10,
+ 0x09,0x11,0xff,0xf0,0x90,0xb3,0xa4,0x00,0x11,0xff,0xf0,0x90,0xb3,0xa5,0x00,0x10,
+ 0x09,0x11,0xff,0xf0,0x90,0xb3,0xa6,0x00,0x11,0xff,0xf0,0x90,0xb3,0xa7,0x00,0xd2,
+ 0x24,0xd1,0x12,0x10,0x09,0x11,0xff,0xf0,0x90,0xb3,0xa8,0x00,0x11,0xff,0xf0,0x90,
+ 0xb3,0xa9,0x00,0x10,0x09,0x11,0xff,0xf0,0x90,0xb3,0xaa,0x00,0x11,0xff,0xf0,0x90,
+ 0xb3,0xab,0x00,0xd1,0x12,0x10,0x09,0x11,0xff,0xf0,0x90,0xb3,0xac,0x00,0x11,0xff,
+ 0xf0,0x90,0xb3,0xad,0x00,0x10,0x09,0x11,0xff,0xf0,0x90,0xb3,0xae,0x00,0x11,0xff,
+ 0xf0,0x90,0xb3,0xaf,0x00,0x93,0x23,0x92,0x1f,0xd1,0x12,0x10,0x09,0x11,0xff,0xf0,
+ 0x90,0xb3,0xb0,0x00,0x11,0xff,0xf0,0x90,0xb3,0xb1,0x00,0x10,0x09,0x11,0xff,0xf0,
+ 0x90,0xb3,0xb2,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xcf,0x86,0xd5,0x15,0xe4,0x91,
+ 0x7b,0xe3,0x9b,0x79,0xe2,0x94,0x78,0xe1,0xe4,0x77,0xe0,0x9d,0x77,0xcf,0x06,0x0c,
+ 0x00,0xe4,0xeb,0x7e,0xe3,0x44,0x7e,0xe2,0xed,0x7d,0xd1,0x0c,0xe0,0xb2,0x7d,0xcf,
+ 0x86,0x65,0x93,0x7d,0x14,0x00,0xe0,0xb6,0x7d,0xcf,0x86,0x55,0x04,0x00,0x00,0xd4,
+ 0x90,0xd3,0x48,0xd2,0x24,0xd1,0x12,0x10,0x09,0x10,0xff,0xf0,0x91,0xa3,0x80,0x00,
+ 0x10,0xff,0xf0,0x91,0xa3,0x81,0x00,0x10,0x09,0x10,0xff,0xf0,0x91,0xa3,0x82,0x00,
+ 0x10,0xff,0xf0,0x91,0xa3,0x83,0x00,0xd1,0x12,0x10,0x09,0x10,0xff,0xf0,0x91,0xa3,
+ 0x84,0x00,0x10,0xff,0xf0,0x91,0xa3,0x85,0x00,0x10,0x09,0x10,0xff,0xf0,0x91,0xa3,
+ 0x86,0x00,0x10,0xff,0xf0,0x91,0xa3,0x87,0x00,0xd2,0x24,0xd1,0x12,0x10,0x09,0x10,
+ 0xff,0xf0,0x91,0xa3,0x88,0x00,0x10,0xff,0xf0,0x91,0xa3,0x89,0x00,0x10,0x09,0x10,
+ 0xff,0xf0,0x91,0xa3,0x8a,0x00,0x10,0xff,0xf0,0x91,0xa3,0x8b,0x00,0xd1,0x12,0x10,
+ 0x09,0x10,0xff,0xf0,0x91,0xa3,0x8c,0x00,0x10,0xff,0xf0,0x91,0xa3,0x8d,0x00,0x10,
+ 0x09,0x10,0xff,0xf0,0x91,0xa3,0x8e,0x00,0x10,0xff,0xf0,0x91,0xa3,0x8f,0x00,0xd3,
+ 0x48,0xd2,0x24,0xd1,0x12,0x10,0x09,0x10,0xff,0xf0,0x91,0xa3,0x90,0x00,0x10,0xff,
+ 0xf0,0x91,0xa3,0x91,0x00,0x10,0x09,0x10,0xff,0xf0,0x91,0xa3,0x92,0x00,0x10,0xff,
+ 0xf0,0x91,0xa3,0x93,0x00,0xd1,0x12,0x10,0x09,0x10,0xff,0xf0,0x91,0xa3,0x94,0x00,
+ 0x10,0xff,0xf0,0x91,0xa3,0x95,0x00,0x10,0x09,0x10,0xff,0xf0,0x91,0xa3,0x96,0x00,
+ 0x10,0xff,0xf0,0x91,0xa3,0x97,0x00,0xd2,0x24,0xd1,0x12,0x10,0x09,0x10,0xff,0xf0,
+ 0x91,0xa3,0x98,0x00,0x10,0xff,0xf0,0x91,0xa3,0x99,0x00,0x10,0x09,0x10,0xff,0xf0,
+ 0x91,0xa3,0x9a,0x00,0x10,0xff,0xf0,0x91,0xa3,0x9b,0x00,0xd1,0x12,0x10,0x09,0x10,
+ 0xff,0xf0,0x91,0xa3,0x9c,0x00,0x10,0xff,0xf0,0x91,0xa3,0x9d,0x00,0x10,0x09,0x10,
+ 0xff,0xf0,0x91,0xa3,0x9e,0x00,0x10,0xff,0xf0,0x91,0xa3,0x9f,0x00,0xd1,0x11,0xe0,
+ 0x12,0x81,0xcf,0x86,0xe5,0x09,0x81,0xe4,0xd2,0x80,0xcf,0x06,0x00,0x00,0xe0,0xdb,
+ 0x82,0xcf,0x86,0xd5,0x06,0xcf,0x06,0x00,0x00,0xd4,0x09,0xe3,0x10,0x81,0xcf,0x06,
+ 0x0c,0x00,0xd3,0x06,0xcf,0x06,0x00,0x00,0xe2,0x3b,0x82,0xe1,0x16,0x82,0xd0,0x06,
+ 0xcf,0x06,0x00,0x00,0xcf,0x86,0xa5,0x21,0x01,0xd4,0x90,0xd3,0x48,0xd2,0x24,0xd1,
+ 0x12,0x10,0x09,0x14,0xff,0xf0,0x96,0xb9,0xa0,0x00,0x14,0xff,0xf0,0x96,0xb9,0xa1,
+ 0x00,0x10,0x09,0x14,0xff,0xf0,0x96,0xb9,0xa2,0x00,0x14,0xff,0xf0,0x96,0xb9,0xa3,
+ 0x00,0xd1,0x12,0x10,0x09,0x14,0xff,0xf0,0x96,0xb9,0xa4,0x00,0x14,0xff,0xf0,0x96,
+ 0xb9,0xa5,0x00,0x10,0x09,0x14,0xff,0xf0,0x96,0xb9,0xa6,0x00,0x14,0xff,0xf0,0x96,
+ 0xb9,0xa7,0x00,0xd2,0x24,0xd1,0x12,0x10,0x09,0x14,0xff,0xf0,0x96,0xb9,0xa8,0x00,
+ 0x14,0xff,0xf0,0x96,0xb9,0xa9,0x00,0x10,0x09,0x14,0xff,0xf0,0x96,0xb9,0xaa,0x00,
+ 0x14,0xff,0xf0,0x96,0xb9,0xab,0x00,0xd1,0x12,0x10,0x09,0x14,0xff,0xf0,0x96,0xb9,
+ 0xac,0x00,0x14,0xff,0xf0,0x96,0xb9,0xad,0x00,0x10,0x09,0x14,0xff,0xf0,0x96,0xb9,
+ 0xae,0x00,0x14,0xff,0xf0,0x96,0xb9,0xaf,0x00,0xd3,0x48,0xd2,0x24,0xd1,0x12,0x10,
+ 0x09,0x14,0xff,0xf0,0x96,0xb9,0xb0,0x00,0x14,0xff,0xf0,0x96,0xb9,0xb1,0x00,0x10,
+ 0x09,0x14,0xff,0xf0,0x96,0xb9,0xb2,0x00,0x14,0xff,0xf0,0x96,0xb9,0xb3,0x00,0xd1,
+ 0x12,0x10,0x09,0x14,0xff,0xf0,0x96,0xb9,0xb4,0x00,0x14,0xff,0xf0,0x96,0xb9,0xb5,
+ 0x00,0x10,0x09,0x14,0xff,0xf0,0x96,0xb9,0xb6,0x00,0x14,0xff,0xf0,0x96,0xb9,0xb7,
+ 0x00,0xd2,0x24,0xd1,0x12,0x10,0x09,0x14,0xff,0xf0,0x96,0xb9,0xb8,0x00,0x14,0xff,
+ 0xf0,0x96,0xb9,0xb9,0x00,0x10,0x09,0x14,0xff,0xf0,0x96,0xb9,0xba,0x00,0x14,0xff,
+ 0xf0,0x96,0xb9,0xbb,0x00,0xd1,0x12,0x10,0x09,0x14,0xff,0xf0,0x96,0xb9,0xbc,0x00,
+ 0x14,0xff,0xf0,0x96,0xb9,0xbd,0x00,0x10,0x09,0x14,0xff,0xf0,0x96,0xb9,0xbe,0x00,
+ 0x14,0xff,0xf0,0x96,0xb9,0xbf,0x00,0x14,0x00,0xd2,0x14,0xe1,0x25,0x82,0xe0,0x1c,
+ 0x82,0xcf,0x86,0xe5,0xdd,0x81,0xe4,0x9a,0x81,0xcf,0x06,0x12,0x00,0xd1,0x0b,0xe0,
+ 0x51,0x83,0xcf,0x86,0xcf,0x06,0x00,0x00,0xe0,0x95,0x8b,0xcf,0x86,0xd5,0x22,0xe4,
+ 0xd0,0x88,0xe3,0x93,0x88,0xe2,0x38,0x88,0xe1,0x31,0x88,0xe0,0x2a,0x88,0xcf,0x86,
+ 0xe5,0xfb,0x87,0xe4,0xe2,0x87,0x93,0x07,0x62,0xd1,0x87,0x12,0xe6,0x12,0xe6,0xe4,
+ 0x36,0x89,0xe3,0x2f,0x89,0xd2,0x09,0xe1,0xb8,0x88,0xcf,0x06,0x10,0x00,0xe1,0x1f,
+ 0x89,0xe0,0xec,0x88,0xcf,0x86,0xe5,0x21,0x01,0xd4,0x90,0xd3,0x48,0xd2,0x24,0xd1,
+ 0x12,0x10,0x09,0x12,0xff,0xf0,0x9e,0xa4,0xa2,0x00,0x12,0xff,0xf0,0x9e,0xa4,0xa3,
+ 0x00,0x10,0x09,0x12,0xff,0xf0,0x9e,0xa4,0xa4,0x00,0x12,0xff,0xf0,0x9e,0xa4,0xa5,
+ 0x00,0xd1,0x12,0x10,0x09,0x12,0xff,0xf0,0x9e,0xa4,0xa6,0x00,0x12,0xff,0xf0,0x9e,
+ 0xa4,0xa7,0x00,0x10,0x09,0x12,0xff,0xf0,0x9e,0xa4,0xa8,0x00,0x12,0xff,0xf0,0x9e,
+ 0xa4,0xa9,0x00,0xd2,0x24,0xd1,0x12,0x10,0x09,0x12,0xff,0xf0,0x9e,0xa4,0xaa,0x00,
+ 0x12,0xff,0xf0,0x9e,0xa4,0xab,0x00,0x10,0x09,0x12,0xff,0xf0,0x9e,0xa4,0xac,0x00,
+ 0x12,0xff,0xf0,0x9e,0xa4,0xad,0x00,0xd1,0x12,0x10,0x09,0x12,0xff,0xf0,0x9e,0xa4,
+ 0xae,0x00,0x12,0xff,0xf0,0x9e,0xa4,0xaf,0x00,0x10,0x09,0x12,0xff,0xf0,0x9e,0xa4,
+ 0xb0,0x00,0x12,0xff,0xf0,0x9e,0xa4,0xb1,0x00,0xd3,0x48,0xd2,0x24,0xd1,0x12,0x10,
+ 0x09,0x12,0xff,0xf0,0x9e,0xa4,0xb2,0x00,0x12,0xff,0xf0,0x9e,0xa4,0xb3,0x00,0x10,
+ 0x09,0x12,0xff,0xf0,0x9e,0xa4,0xb4,0x00,0x12,0xff,0xf0,0x9e,0xa4,0xb5,0x00,0xd1,
+ 0x12,0x10,0x09,0x12,0xff,0xf0,0x9e,0xa4,0xb6,0x00,0x12,0xff,0xf0,0x9e,0xa4,0xb7,
+ 0x00,0x10,0x09,0x12,0xff,0xf0,0x9e,0xa4,0xb8,0x00,0x12,0xff,0xf0,0x9e,0xa4,0xb9,
+ 0x00,0xd2,0x24,0xd1,0x12,0x10,0x09,0x12,0xff,0xf0,0x9e,0xa4,0xba,0x00,0x12,0xff,
+ 0xf0,0x9e,0xa4,0xbb,0x00,0x10,0x09,0x12,0xff,0xf0,0x9e,0xa4,0xbc,0x00,0x12,0xff,
+ 0xf0,0x9e,0xa4,0xbd,0x00,0xd1,0x12,0x10,0x09,0x12,0xff,0xf0,0x9e,0xa4,0xbe,0x00,
+ 0x12,0xff,0xf0,0x9e,0xa4,0xbf,0x00,0x10,0x09,0x12,0xff,0xf0,0x9e,0xa5,0x80,0x00,
+ 0x12,0xff,0xf0,0x9e,0xa5,0x81,0x00,0x94,0x1e,0x93,0x1a,0x92,0x16,0x91,0x12,0x10,
+ 0x09,0x12,0xff,0xf0,0x9e,0xa5,0x82,0x00,0x12,0xff,0xf0,0x9e,0xa5,0x83,0x00,0x12,
+ 0x00,0x12,0x00,0x12,0x00,0x12,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+ /* nfdi_c0100 */
+ 0x57,0x04,0x01,0x00,0xc6,0xe5,0xac,0x13,0xe4,0x41,0x0c,0xe3,0x7a,0x07,0xe2,0xf3,
+ 0x01,0xc1,0xd0,0x1f,0xcf,0x86,0x55,0x04,0x01,0x00,0x94,0x15,0x53,0x04,0x01,0x00,
+ 0x52,0x04,0x01,0x00,0x91,0x09,0x10,0x04,0x01,0x00,0x01,0xff,0x00,0x01,0x00,0x01,
+ 0x00,0xcf,0x86,0xd5,0xe4,0xd4,0x7c,0xd3,0x3c,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,
+ 0xff,0x41,0xcc,0x80,0x00,0x01,0xff,0x41,0xcc,0x81,0x00,0x10,0x08,0x01,0xff,0x41,
+ 0xcc,0x82,0x00,0x01,0xff,0x41,0xcc,0x83,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x41,
+ 0xcc,0x88,0x00,0x01,0xff,0x41,0xcc,0x8a,0x00,0x10,0x04,0x01,0x00,0x01,0xff,0x43,
+ 0xcc,0xa7,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x45,0xcc,0x80,0x00,0x01,
+ 0xff,0x45,0xcc,0x81,0x00,0x10,0x08,0x01,0xff,0x45,0xcc,0x82,0x00,0x01,0xff,0x45,
+ 0xcc,0x88,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x49,0xcc,0x80,0x00,0x01,0xff,0x49,
+ 0xcc,0x81,0x00,0x10,0x08,0x01,0xff,0x49,0xcc,0x82,0x00,0x01,0xff,0x49,0xcc,0x88,
+ 0x00,0xd3,0x38,0xd2,0x1c,0xd1,0x0c,0x10,0x04,0x01,0x00,0x01,0xff,0x4e,0xcc,0x83,
+ 0x00,0x10,0x08,0x01,0xff,0x4f,0xcc,0x80,0x00,0x01,0xff,0x4f,0xcc,0x81,0x00,0xd1,
+ 0x10,0x10,0x08,0x01,0xff,0x4f,0xcc,0x82,0x00,0x01,0xff,0x4f,0xcc,0x83,0x00,0x10,
+ 0x08,0x01,0xff,0x4f,0xcc,0x88,0x00,0x01,0x00,0xd2,0x1c,0xd1,0x0c,0x10,0x04,0x01,
+ 0x00,0x01,0xff,0x55,0xcc,0x80,0x00,0x10,0x08,0x01,0xff,0x55,0xcc,0x81,0x00,0x01,
+ 0xff,0x55,0xcc,0x82,0x00,0x91,0x10,0x10,0x08,0x01,0xff,0x55,0xcc,0x88,0x00,0x01,
+ 0xff,0x59,0xcc,0x81,0x00,0x01,0x00,0xd4,0x7c,0xd3,0x3c,0xd2,0x20,0xd1,0x10,0x10,
+ 0x08,0x01,0xff,0x61,0xcc,0x80,0x00,0x01,0xff,0x61,0xcc,0x81,0x00,0x10,0x08,0x01,
+ 0xff,0x61,0xcc,0x82,0x00,0x01,0xff,0x61,0xcc,0x83,0x00,0xd1,0x10,0x10,0x08,0x01,
+ 0xff,0x61,0xcc,0x88,0x00,0x01,0xff,0x61,0xcc,0x8a,0x00,0x10,0x04,0x01,0x00,0x01,
+ 0xff,0x63,0xcc,0xa7,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x65,0xcc,0x80,
+ 0x00,0x01,0xff,0x65,0xcc,0x81,0x00,0x10,0x08,0x01,0xff,0x65,0xcc,0x82,0x00,0x01,
+ 0xff,0x65,0xcc,0x88,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x69,0xcc,0x80,0x00,0x01,
+ 0xff,0x69,0xcc,0x81,0x00,0x10,0x08,0x01,0xff,0x69,0xcc,0x82,0x00,0x01,0xff,0x69,
+ 0xcc,0x88,0x00,0xd3,0x38,0xd2,0x1c,0xd1,0x0c,0x10,0x04,0x01,0x00,0x01,0xff,0x6e,
+ 0xcc,0x83,0x00,0x10,0x08,0x01,0xff,0x6f,0xcc,0x80,0x00,0x01,0xff,0x6f,0xcc,0x81,
+ 0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x6f,0xcc,0x82,0x00,0x01,0xff,0x6f,0xcc,0x83,
+ 0x00,0x10,0x08,0x01,0xff,0x6f,0xcc,0x88,0x00,0x01,0x00,0xd2,0x1c,0xd1,0x0c,0x10,
+ 0x04,0x01,0x00,0x01,0xff,0x75,0xcc,0x80,0x00,0x10,0x08,0x01,0xff,0x75,0xcc,0x81,
+ 0x00,0x01,0xff,0x75,0xcc,0x82,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x75,0xcc,0x88,
+ 0x00,0x01,0xff,0x79,0xcc,0x81,0x00,0x10,0x04,0x01,0x00,0x01,0xff,0x79,0xcc,0x88,
+ 0x00,0xe1,0x9a,0x03,0xe0,0xd3,0x01,0xcf,0x86,0xd5,0xf4,0xd4,0x80,0xd3,0x40,0xd2,
+ 0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x41,0xcc,0x84,0x00,0x01,0xff,0x61,0xcc,0x84,
+ 0x00,0x10,0x08,0x01,0xff,0x41,0xcc,0x86,0x00,0x01,0xff,0x61,0xcc,0x86,0x00,0xd1,
+ 0x10,0x10,0x08,0x01,0xff,0x41,0xcc,0xa8,0x00,0x01,0xff,0x61,0xcc,0xa8,0x00,0x10,
+ 0x08,0x01,0xff,0x43,0xcc,0x81,0x00,0x01,0xff,0x63,0xcc,0x81,0x00,0xd2,0x20,0xd1,
+ 0x10,0x10,0x08,0x01,0xff,0x43,0xcc,0x82,0x00,0x01,0xff,0x63,0xcc,0x82,0x00,0x10,
+ 0x08,0x01,0xff,0x43,0xcc,0x87,0x00,0x01,0xff,0x63,0xcc,0x87,0x00,0xd1,0x10,0x10,
+ 0x08,0x01,0xff,0x43,0xcc,0x8c,0x00,0x01,0xff,0x63,0xcc,0x8c,0x00,0x10,0x08,0x01,
+ 0xff,0x44,0xcc,0x8c,0x00,0x01,0xff,0x64,0xcc,0x8c,0x00,0xd3,0x34,0xd2,0x14,0x51,
+ 0x04,0x01,0x00,0x10,0x08,0x01,0xff,0x45,0xcc,0x84,0x00,0x01,0xff,0x65,0xcc,0x84,
+ 0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x45,0xcc,0x86,0x00,0x01,0xff,0x65,0xcc,0x86,
+ 0x00,0x10,0x08,0x01,0xff,0x45,0xcc,0x87,0x00,0x01,0xff,0x65,0xcc,0x87,0x00,0xd2,
+ 0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x45,0xcc,0xa8,0x00,0x01,0xff,0x65,0xcc,0xa8,
+ 0x00,0x10,0x08,0x01,0xff,0x45,0xcc,0x8c,0x00,0x01,0xff,0x65,0xcc,0x8c,0x00,0xd1,
+ 0x10,0x10,0x08,0x01,0xff,0x47,0xcc,0x82,0x00,0x01,0xff,0x67,0xcc,0x82,0x00,0x10,
+ 0x08,0x01,0xff,0x47,0xcc,0x86,0x00,0x01,0xff,0x67,0xcc,0x86,0x00,0xd4,0x74,0xd3,
+ 0x34,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x47,0xcc,0x87,0x00,0x01,0xff,0x67,
+ 0xcc,0x87,0x00,0x10,0x08,0x01,0xff,0x47,0xcc,0xa7,0x00,0x01,0xff,0x67,0xcc,0xa7,
+ 0x00,0x91,0x10,0x10,0x08,0x01,0xff,0x48,0xcc,0x82,0x00,0x01,0xff,0x68,0xcc,0x82,
+ 0x00,0x01,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x49,0xcc,0x83,0x00,0x01,
+ 0xff,0x69,0xcc,0x83,0x00,0x10,0x08,0x01,0xff,0x49,0xcc,0x84,0x00,0x01,0xff,0x69,
+ 0xcc,0x84,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x49,0xcc,0x86,0x00,0x01,0xff,0x69,
+ 0xcc,0x86,0x00,0x10,0x08,0x01,0xff,0x49,0xcc,0xa8,0x00,0x01,0xff,0x69,0xcc,0xa8,
+ 0x00,0xd3,0x30,0xd2,0x10,0x91,0x0c,0x10,0x08,0x01,0xff,0x49,0xcc,0x87,0x00,0x01,
+ 0x00,0x01,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x4a,0xcc,0x82,0x00,0x01,0xff,0x6a,
+ 0xcc,0x82,0x00,0x10,0x08,0x01,0xff,0x4b,0xcc,0xa7,0x00,0x01,0xff,0x6b,0xcc,0xa7,
+ 0x00,0xd2,0x1c,0xd1,0x0c,0x10,0x04,0x01,0x00,0x01,0xff,0x4c,0xcc,0x81,0x00,0x10,
+ 0x08,0x01,0xff,0x6c,0xcc,0x81,0x00,0x01,0xff,0x4c,0xcc,0xa7,0x00,0xd1,0x10,0x10,
+ 0x08,0x01,0xff,0x6c,0xcc,0xa7,0x00,0x01,0xff,0x4c,0xcc,0x8c,0x00,0x10,0x08,0x01,
+ 0xff,0x6c,0xcc,0x8c,0x00,0x01,0x00,0xcf,0x86,0xd5,0xd4,0xd4,0x60,0xd3,0x30,0xd2,
+ 0x10,0x51,0x04,0x01,0x00,0x10,0x04,0x01,0x00,0x01,0xff,0x4e,0xcc,0x81,0x00,0xd1,
+ 0x10,0x10,0x08,0x01,0xff,0x6e,0xcc,0x81,0x00,0x01,0xff,0x4e,0xcc,0xa7,0x00,0x10,
+ 0x08,0x01,0xff,0x6e,0xcc,0xa7,0x00,0x01,0xff,0x4e,0xcc,0x8c,0x00,0xd2,0x10,0x91,
+ 0x0c,0x10,0x08,0x01,0xff,0x6e,0xcc,0x8c,0x00,0x01,0x00,0x01,0x00,0xd1,0x10,0x10,
+ 0x08,0x01,0xff,0x4f,0xcc,0x84,0x00,0x01,0xff,0x6f,0xcc,0x84,0x00,0x10,0x08,0x01,
+ 0xff,0x4f,0xcc,0x86,0x00,0x01,0xff,0x6f,0xcc,0x86,0x00,0xd3,0x34,0xd2,0x14,0x91,
+ 0x10,0x10,0x08,0x01,0xff,0x4f,0xcc,0x8b,0x00,0x01,0xff,0x6f,0xcc,0x8b,0x00,0x01,
+ 0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x52,0xcc,0x81,0x00,0x01,0xff,0x72,0xcc,0x81,
+ 0x00,0x10,0x08,0x01,0xff,0x52,0xcc,0xa7,0x00,0x01,0xff,0x72,0xcc,0xa7,0x00,0xd2,
+ 0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x52,0xcc,0x8c,0x00,0x01,0xff,0x72,0xcc,0x8c,
+ 0x00,0x10,0x08,0x01,0xff,0x53,0xcc,0x81,0x00,0x01,0xff,0x73,0xcc,0x81,0x00,0xd1,
+ 0x10,0x10,0x08,0x01,0xff,0x53,0xcc,0x82,0x00,0x01,0xff,0x73,0xcc,0x82,0x00,0x10,
+ 0x08,0x01,0xff,0x53,0xcc,0xa7,0x00,0x01,0xff,0x73,0xcc,0xa7,0x00,0xd4,0x74,0xd3,
+ 0x34,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x53,0xcc,0x8c,0x00,0x01,0xff,0x73,
+ 0xcc,0x8c,0x00,0x10,0x08,0x01,0xff,0x54,0xcc,0xa7,0x00,0x01,0xff,0x74,0xcc,0xa7,
+ 0x00,0x91,0x10,0x10,0x08,0x01,0xff,0x54,0xcc,0x8c,0x00,0x01,0xff,0x74,0xcc,0x8c,
+ 0x00,0x01,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x55,0xcc,0x83,0x00,0x01,
+ 0xff,0x75,0xcc,0x83,0x00,0x10,0x08,0x01,0xff,0x55,0xcc,0x84,0x00,0x01,0xff,0x75,
+ 0xcc,0x84,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x55,0xcc,0x86,0x00,0x01,0xff,0x75,
+ 0xcc,0x86,0x00,0x10,0x08,0x01,0xff,0x55,0xcc,0x8a,0x00,0x01,0xff,0x75,0xcc,0x8a,
+ 0x00,0xd3,0x40,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x55,0xcc,0x8b,0x00,0x01,
+ 0xff,0x75,0xcc,0x8b,0x00,0x10,0x08,0x01,0xff,0x55,0xcc,0xa8,0x00,0x01,0xff,0x75,
+ 0xcc,0xa8,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x57,0xcc,0x82,0x00,0x01,0xff,0x77,
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+ 0x00,0x01,0xff,0x74,0xcc,0x87,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x54,0xcc,0xa3,
+ 0x00,0x01,0xff,0x74,0xcc,0xa3,0x00,0x10,0x08,0x01,0xff,0x54,0xcc,0xb1,0x00,0x01,
+ 0xff,0x74,0xcc,0xb1,0x00,0xd3,0x40,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x54,
+ 0xcc,0xad,0x00,0x01,0xff,0x74,0xcc,0xad,0x00,0x10,0x08,0x01,0xff,0x55,0xcc,0xa4,
+ 0x00,0x01,0xff,0x75,0xcc,0xa4,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x55,0xcc,0xb0,
+ 0x00,0x01,0xff,0x75,0xcc,0xb0,0x00,0x10,0x08,0x01,0xff,0x55,0xcc,0xad,0x00,0x01,
+ 0xff,0x75,0xcc,0xad,0x00,0xd2,0x28,0xd1,0x14,0x10,0x0a,0x01,0xff,0x55,0xcc,0x83,
+ 0xcc,0x81,0x00,0x01,0xff,0x75,0xcc,0x83,0xcc,0x81,0x00,0x10,0x0a,0x01,0xff,0x55,
+ 0xcc,0x84,0xcc,0x88,0x00,0x01,0xff,0x75,0xcc,0x84,0xcc,0x88,0x00,0xd1,0x10,0x10,
+ 0x08,0x01,0xff,0x56,0xcc,0x83,0x00,0x01,0xff,0x76,0xcc,0x83,0x00,0x10,0x08,0x01,
+ 0xff,0x56,0xcc,0xa3,0x00,0x01,0xff,0x76,0xcc,0xa3,0x00,0xe0,0x10,0x02,0xcf,0x86,
+ 0xd5,0xe1,0xd4,0x80,0xd3,0x40,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x57,0xcc,
+ 0x80,0x00,0x01,0xff,0x77,0xcc,0x80,0x00,0x10,0x08,0x01,0xff,0x57,0xcc,0x81,0x00,
+ 0x01,0xff,0x77,0xcc,0x81,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x57,0xcc,0x88,0x00,
+ 0x01,0xff,0x77,0xcc,0x88,0x00,0x10,0x08,0x01,0xff,0x57,0xcc,0x87,0x00,0x01,0xff,
+ 0x77,0xcc,0x87,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x57,0xcc,0xa3,0x00,
+ 0x01,0xff,0x77,0xcc,0xa3,0x00,0x10,0x08,0x01,0xff,0x58,0xcc,0x87,0x00,0x01,0xff,
+ 0x78,0xcc,0x87,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x58,0xcc,0x88,0x00,0x01,0xff,
+ 0x78,0xcc,0x88,0x00,0x10,0x08,0x01,0xff,0x59,0xcc,0x87,0x00,0x01,0xff,0x79,0xcc,
+ 0x87,0x00,0xd3,0x40,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x5a,0xcc,0x82,0x00,
+ 0x01,0xff,0x7a,0xcc,0x82,0x00,0x10,0x08,0x01,0xff,0x5a,0xcc,0xa3,0x00,0x01,0xff,
+ 0x7a,0xcc,0xa3,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x5a,0xcc,0xb1,0x00,0x01,0xff,
+ 0x7a,0xcc,0xb1,0x00,0x10,0x08,0x01,0xff,0x68,0xcc,0xb1,0x00,0x01,0xff,0x74,0xcc,
+ 0x88,0x00,0x92,0x1d,0xd1,0x10,0x10,0x08,0x01,0xff,0x77,0xcc,0x8a,0x00,0x01,0xff,
+ 0x79,0xcc,0x8a,0x00,0x10,0x04,0x01,0x00,0x02,0xff,0xc5,0xbf,0xcc,0x87,0x00,0x0a,
+ 0x00,0xd4,0x98,0xd3,0x48,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x41,0xcc,0xa3,
+ 0x00,0x01,0xff,0x61,0xcc,0xa3,0x00,0x10,0x08,0x01,0xff,0x41,0xcc,0x89,0x00,0x01,
+ 0xff,0x61,0xcc,0x89,0x00,0xd1,0x14,0x10,0x0a,0x01,0xff,0x41,0xcc,0x82,0xcc,0x81,
+ 0x00,0x01,0xff,0x61,0xcc,0x82,0xcc,0x81,0x00,0x10,0x0a,0x01,0xff,0x41,0xcc,0x82,
+ 0xcc,0x80,0x00,0x01,0xff,0x61,0xcc,0x82,0xcc,0x80,0x00,0xd2,0x28,0xd1,0x14,0x10,
+ 0x0a,0x01,0xff,0x41,0xcc,0x82,0xcc,0x89,0x00,0x01,0xff,0x61,0xcc,0x82,0xcc,0x89,
+ 0x00,0x10,0x0a,0x01,0xff,0x41,0xcc,0x82,0xcc,0x83,0x00,0x01,0xff,0x61,0xcc,0x82,
+ 0xcc,0x83,0x00,0xd1,0x14,0x10,0x0a,0x01,0xff,0x41,0xcc,0xa3,0xcc,0x82,0x00,0x01,
+ 0xff,0x61,0xcc,0xa3,0xcc,0x82,0x00,0x10,0x0a,0x01,0xff,0x41,0xcc,0x86,0xcc,0x81,
+ 0x00,0x01,0xff,0x61,0xcc,0x86,0xcc,0x81,0x00,0xd3,0x50,0xd2,0x28,0xd1,0x14,0x10,
+ 0x0a,0x01,0xff,0x41,0xcc,0x86,0xcc,0x80,0x00,0x01,0xff,0x61,0xcc,0x86,0xcc,0x80,
+ 0x00,0x10,0x0a,0x01,0xff,0x41,0xcc,0x86,0xcc,0x89,0x00,0x01,0xff,0x61,0xcc,0x86,
+ 0xcc,0x89,0x00,0xd1,0x14,0x10,0x0a,0x01,0xff,0x41,0xcc,0x86,0xcc,0x83,0x00,0x01,
+ 0xff,0x61,0xcc,0x86,0xcc,0x83,0x00,0x10,0x0a,0x01,0xff,0x41,0xcc,0xa3,0xcc,0x86,
+ 0x00,0x01,0xff,0x61,0xcc,0xa3,0xcc,0x86,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,
+ 0xff,0x45,0xcc,0xa3,0x00,0x01,0xff,0x65,0xcc,0xa3,0x00,0x10,0x08,0x01,0xff,0x45,
+ 0xcc,0x89,0x00,0x01,0xff,0x65,0xcc,0x89,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x45,
+ 0xcc,0x83,0x00,0x01,0xff,0x65,0xcc,0x83,0x00,0x10,0x0a,0x01,0xff,0x45,0xcc,0x82,
+ 0xcc,0x81,0x00,0x01,0xff,0x65,0xcc,0x82,0xcc,0x81,0x00,0xcf,0x86,0xe5,0x31,0x01,
+ 0xd4,0x90,0xd3,0x50,0xd2,0x28,0xd1,0x14,0x10,0x0a,0x01,0xff,0x45,0xcc,0x82,0xcc,
+ 0x80,0x00,0x01,0xff,0x65,0xcc,0x82,0xcc,0x80,0x00,0x10,0x0a,0x01,0xff,0x45,0xcc,
+ 0x82,0xcc,0x89,0x00,0x01,0xff,0x65,0xcc,0x82,0xcc,0x89,0x00,0xd1,0x14,0x10,0x0a,
+ 0x01,0xff,0x45,0xcc,0x82,0xcc,0x83,0x00,0x01,0xff,0x65,0xcc,0x82,0xcc,0x83,0x00,
+ 0x10,0x0a,0x01,0xff,0x45,0xcc,0xa3,0xcc,0x82,0x00,0x01,0xff,0x65,0xcc,0xa3,0xcc,
+ 0x82,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0x49,0xcc,0x89,0x00,0x01,0xff,
+ 0x69,0xcc,0x89,0x00,0x10,0x08,0x01,0xff,0x49,0xcc,0xa3,0x00,0x01,0xff,0x69,0xcc,
+ 0xa3,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0x4f,0xcc,0xa3,0x00,0x01,0xff,0x6f,0xcc,
+ 0xa3,0x00,0x10,0x08,0x01,0xff,0x4f,0xcc,0x89,0x00,0x01,0xff,0x6f,0xcc,0x89,0x00,
+ 0xd3,0x50,0xd2,0x28,0xd1,0x14,0x10,0x0a,0x01,0xff,0x4f,0xcc,0x82,0xcc,0x81,0x00,
+ 0x01,0xff,0x6f,0xcc,0x82,0xcc,0x81,0x00,0x10,0x0a,0x01,0xff,0x4f,0xcc,0x82,0xcc,
+ 0x80,0x00,0x01,0xff,0x6f,0xcc,0x82,0xcc,0x80,0x00,0xd1,0x14,0x10,0x0a,0x01,0xff,
+ 0x4f,0xcc,0x82,0xcc,0x89,0x00,0x01,0xff,0x6f,0xcc,0x82,0xcc,0x89,0x00,0x10,0x0a,
+ 0x01,0xff,0x4f,0xcc,0x82,0xcc,0x83,0x00,0x01,0xff,0x6f,0xcc,0x82,0xcc,0x83,0x00,
+ 0xd2,0x28,0xd1,0x14,0x10,0x0a,0x01,0xff,0x4f,0xcc,0xa3,0xcc,0x82,0x00,0x01,0xff,
+ 0x6f,0xcc,0xa3,0xcc,0x82,0x00,0x10,0x0a,0x01,0xff,0x4f,0xcc,0x9b,0xcc,0x81,0x00,
+ 0x01,0xff,0x6f,0xcc,0x9b,0xcc,0x81,0x00,0xd1,0x14,0x10,0x0a,0x01,0xff,0x4f,0xcc,
+ 0x9b,0xcc,0x80,0x00,0x01,0xff,0x6f,0xcc,0x9b,0xcc,0x80,0x00,0x10,0x0a,0x01,0xff,
+ 0x4f,0xcc,0x9b,0xcc,0x89,0x00,0x01,0xff,0x6f,0xcc,0x9b,0xcc,0x89,0x00,0xd4,0x98,
+ 0xd3,0x48,0xd2,0x28,0xd1,0x14,0x10,0x0a,0x01,0xff,0x4f,0xcc,0x9b,0xcc,0x83,0x00,
+ 0x01,0xff,0x6f,0xcc,0x9b,0xcc,0x83,0x00,0x10,0x0a,0x01,0xff,0x4f,0xcc,0x9b,0xcc,
+ 0xa3,0x00,0x01,0xff,0x6f,0xcc,0x9b,0xcc,0xa3,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,
+ 0x55,0xcc,0xa3,0x00,0x01,0xff,0x75,0xcc,0xa3,0x00,0x10,0x08,0x01,0xff,0x55,0xcc,
+ 0x89,0x00,0x01,0xff,0x75,0xcc,0x89,0x00,0xd2,0x28,0xd1,0x14,0x10,0x0a,0x01,0xff,
+ 0x55,0xcc,0x9b,0xcc,0x81,0x00,0x01,0xff,0x75,0xcc,0x9b,0xcc,0x81,0x00,0x10,0x0a,
+ 0x01,0xff,0x55,0xcc,0x9b,0xcc,0x80,0x00,0x01,0xff,0x75,0xcc,0x9b,0xcc,0x80,0x00,
+ 0xd1,0x14,0x10,0x0a,0x01,0xff,0x55,0xcc,0x9b,0xcc,0x89,0x00,0x01,0xff,0x75,0xcc,
+ 0x9b,0xcc,0x89,0x00,0x10,0x0a,0x01,0xff,0x55,0xcc,0x9b,0xcc,0x83,0x00,0x01,0xff,
+ 0x75,0xcc,0x9b,0xcc,0x83,0x00,0xd3,0x44,0xd2,0x24,0xd1,0x14,0x10,0x0a,0x01,0xff,
+ 0x55,0xcc,0x9b,0xcc,0xa3,0x00,0x01,0xff,0x75,0xcc,0x9b,0xcc,0xa3,0x00,0x10,0x08,
+ 0x01,0xff,0x59,0xcc,0x80,0x00,0x01,0xff,0x79,0xcc,0x80,0x00,0xd1,0x10,0x10,0x08,
+ 0x01,0xff,0x59,0xcc,0xa3,0x00,0x01,0xff,0x79,0xcc,0xa3,0x00,0x10,0x08,0x01,0xff,
+ 0x59,0xcc,0x89,0x00,0x01,0xff,0x79,0xcc,0x89,0x00,0x92,0x14,0x91,0x10,0x10,0x08,
+ 0x01,0xff,0x59,0xcc,0x83,0x00,0x01,0xff,0x79,0xcc,0x83,0x00,0x0a,0x00,0x0a,0x00,
+ 0xe1,0xc0,0x04,0xe0,0x80,0x02,0xcf,0x86,0xe5,0x2d,0x01,0xd4,0xa8,0xd3,0x54,0xd2,
+ 0x28,0xd1,0x12,0x10,0x09,0x01,0xff,0xce,0xb1,0xcc,0x93,0x00,0x01,0xff,0xce,0xb1,
+ 0xcc,0x94,0x00,0x10,0x0b,0x01,0xff,0xce,0xb1,0xcc,0x93,0xcc,0x80,0x00,0x01,0xff,
+ 0xce,0xb1,0xcc,0x94,0xcc,0x80,0x00,0xd1,0x16,0x10,0x0b,0x01,0xff,0xce,0xb1,0xcc,
+ 0x93,0xcc,0x81,0x00,0x01,0xff,0xce,0xb1,0xcc,0x94,0xcc,0x81,0x00,0x10,0x0b,0x01,
+ 0xff,0xce,0xb1,0xcc,0x93,0xcd,0x82,0x00,0x01,0xff,0xce,0xb1,0xcc,0x94,0xcd,0x82,
+ 0x00,0xd2,0x28,0xd1,0x12,0x10,0x09,0x01,0xff,0xce,0x91,0xcc,0x93,0x00,0x01,0xff,
+ 0xce,0x91,0xcc,0x94,0x00,0x10,0x0b,0x01,0xff,0xce,0x91,0xcc,0x93,0xcc,0x80,0x00,
+ 0x01,0xff,0xce,0x91,0xcc,0x94,0xcc,0x80,0x00,0xd1,0x16,0x10,0x0b,0x01,0xff,0xce,
+ 0x91,0xcc,0x93,0xcc,0x81,0x00,0x01,0xff,0xce,0x91,0xcc,0x94,0xcc,0x81,0x00,0x10,
+ 0x0b,0x01,0xff,0xce,0x91,0xcc,0x93,0xcd,0x82,0x00,0x01,0xff,0xce,0x91,0xcc,0x94,
+ 0xcd,0x82,0x00,0xd3,0x42,0xd2,0x28,0xd1,0x12,0x10,0x09,0x01,0xff,0xce,0xb5,0xcc,
+ 0x93,0x00,0x01,0xff,0xce,0xb5,0xcc,0x94,0x00,0x10,0x0b,0x01,0xff,0xce,0xb5,0xcc,
+ 0x93,0xcc,0x80,0x00,0x01,0xff,0xce,0xb5,0xcc,0x94,0xcc,0x80,0x00,0x91,0x16,0x10,
+ 0x0b,0x01,0xff,0xce,0xb5,0xcc,0x93,0xcc,0x81,0x00,0x01,0xff,0xce,0xb5,0xcc,0x94,
+ 0xcc,0x81,0x00,0x00,0x00,0xd2,0x28,0xd1,0x12,0x10,0x09,0x01,0xff,0xce,0x95,0xcc,
+ 0x93,0x00,0x01,0xff,0xce,0x95,0xcc,0x94,0x00,0x10,0x0b,0x01,0xff,0xce,0x95,0xcc,
+ 0x93,0xcc,0x80,0x00,0x01,0xff,0xce,0x95,0xcc,0x94,0xcc,0x80,0x00,0x91,0x16,0x10,
+ 0x0b,0x01,0xff,0xce,0x95,0xcc,0x93,0xcc,0x81,0x00,0x01,0xff,0xce,0x95,0xcc,0x94,
+ 0xcc,0x81,0x00,0x00,0x00,0xd4,0xa8,0xd3,0x54,0xd2,0x28,0xd1,0x12,0x10,0x09,0x01,
+ 0xff,0xce,0xb7,0xcc,0x93,0x00,0x01,0xff,0xce,0xb7,0xcc,0x94,0x00,0x10,0x0b,0x01,
+ 0xff,0xce,0xb7,0xcc,0x93,0xcc,0x80,0x00,0x01,0xff,0xce,0xb7,0xcc,0x94,0xcc,0x80,
+ 0x00,0xd1,0x16,0x10,0x0b,0x01,0xff,0xce,0xb7,0xcc,0x93,0xcc,0x81,0x00,0x01,0xff,
+ 0xce,0xb7,0xcc,0x94,0xcc,0x81,0x00,0x10,0x0b,0x01,0xff,0xce,0xb7,0xcc,0x93,0xcd,
+ 0x82,0x00,0x01,0xff,0xce,0xb7,0xcc,0x94,0xcd,0x82,0x00,0xd2,0x28,0xd1,0x12,0x10,
+ 0x09,0x01,0xff,0xce,0x97,0xcc,0x93,0x00,0x01,0xff,0xce,0x97,0xcc,0x94,0x00,0x10,
+ 0x0b,0x01,0xff,0xce,0x97,0xcc,0x93,0xcc,0x80,0x00,0x01,0xff,0xce,0x97,0xcc,0x94,
+ 0xcc,0x80,0x00,0xd1,0x16,0x10,0x0b,0x01,0xff,0xce,0x97,0xcc,0x93,0xcc,0x81,0x00,
+ 0x01,0xff,0xce,0x97,0xcc,0x94,0xcc,0x81,0x00,0x10,0x0b,0x01,0xff,0xce,0x97,0xcc,
+ 0x93,0xcd,0x82,0x00,0x01,0xff,0xce,0x97,0xcc,0x94,0xcd,0x82,0x00,0xd3,0x54,0xd2,
+ 0x28,0xd1,0x12,0x10,0x09,0x01,0xff,0xce,0xb9,0xcc,0x93,0x00,0x01,0xff,0xce,0xb9,
+ 0xcc,0x94,0x00,0x10,0x0b,0x01,0xff,0xce,0xb9,0xcc,0x93,0xcc,0x80,0x00,0x01,0xff,
+ 0xce,0xb9,0xcc,0x94,0xcc,0x80,0x00,0xd1,0x16,0x10,0x0b,0x01,0xff,0xce,0xb9,0xcc,
+ 0x93,0xcc,0x81,0x00,0x01,0xff,0xce,0xb9,0xcc,0x94,0xcc,0x81,0x00,0x10,0x0b,0x01,
+ 0xff,0xce,0xb9,0xcc,0x93,0xcd,0x82,0x00,0x01,0xff,0xce,0xb9,0xcc,0x94,0xcd,0x82,
+ 0x00,0xd2,0x28,0xd1,0x12,0x10,0x09,0x01,0xff,0xce,0x99,0xcc,0x93,0x00,0x01,0xff,
+ 0xce,0x99,0xcc,0x94,0x00,0x10,0x0b,0x01,0xff,0xce,0x99,0xcc,0x93,0xcc,0x80,0x00,
+ 0x01,0xff,0xce,0x99,0xcc,0x94,0xcc,0x80,0x00,0xd1,0x16,0x10,0x0b,0x01,0xff,0xce,
+ 0x99,0xcc,0x93,0xcc,0x81,0x00,0x01,0xff,0xce,0x99,0xcc,0x94,0xcc,0x81,0x00,0x10,
+ 0x0b,0x01,0xff,0xce,0x99,0xcc,0x93,0xcd,0x82,0x00,0x01,0xff,0xce,0x99,0xcc,0x94,
+ 0xcd,0x82,0x00,0xcf,0x86,0xe5,0x13,0x01,0xd4,0x84,0xd3,0x42,0xd2,0x28,0xd1,0x12,
+ 0x10,0x09,0x01,0xff,0xce,0xbf,0xcc,0x93,0x00,0x01,0xff,0xce,0xbf,0xcc,0x94,0x00,
+ 0x10,0x0b,0x01,0xff,0xce,0xbf,0xcc,0x93,0xcc,0x80,0x00,0x01,0xff,0xce,0xbf,0xcc,
+ 0x94,0xcc,0x80,0x00,0x91,0x16,0x10,0x0b,0x01,0xff,0xce,0xbf,0xcc,0x93,0xcc,0x81,
+ 0x00,0x01,0xff,0xce,0xbf,0xcc,0x94,0xcc,0x81,0x00,0x00,0x00,0xd2,0x28,0xd1,0x12,
+ 0x10,0x09,0x01,0xff,0xce,0x9f,0xcc,0x93,0x00,0x01,0xff,0xce,0x9f,0xcc,0x94,0x00,
+ 0x10,0x0b,0x01,0xff,0xce,0x9f,0xcc,0x93,0xcc,0x80,0x00,0x01,0xff,0xce,0x9f,0xcc,
+ 0x94,0xcc,0x80,0x00,0x91,0x16,0x10,0x0b,0x01,0xff,0xce,0x9f,0xcc,0x93,0xcc,0x81,
+ 0x00,0x01,0xff,0xce,0x9f,0xcc,0x94,0xcc,0x81,0x00,0x00,0x00,0xd3,0x54,0xd2,0x28,
+ 0xd1,0x12,0x10,0x09,0x01,0xff,0xcf,0x85,0xcc,0x93,0x00,0x01,0xff,0xcf,0x85,0xcc,
+ 0x94,0x00,0x10,0x0b,0x01,0xff,0xcf,0x85,0xcc,0x93,0xcc,0x80,0x00,0x01,0xff,0xcf,
+ 0x85,0xcc,0x94,0xcc,0x80,0x00,0xd1,0x16,0x10,0x0b,0x01,0xff,0xcf,0x85,0xcc,0x93,
+ 0xcc,0x81,0x00,0x01,0xff,0xcf,0x85,0xcc,0x94,0xcc,0x81,0x00,0x10,0x0b,0x01,0xff,
+ 0xcf,0x85,0xcc,0x93,0xcd,0x82,0x00,0x01,0xff,0xcf,0x85,0xcc,0x94,0xcd,0x82,0x00,
+ 0xd2,0x1c,0xd1,0x0d,0x10,0x04,0x00,0x00,0x01,0xff,0xce,0xa5,0xcc,0x94,0x00,0x10,
+ 0x04,0x00,0x00,0x01,0xff,0xce,0xa5,0xcc,0x94,0xcc,0x80,0x00,0xd1,0x0f,0x10,0x04,
+ 0x00,0x00,0x01,0xff,0xce,0xa5,0xcc,0x94,0xcc,0x81,0x00,0x10,0x04,0x00,0x00,0x01,
+ 0xff,0xce,0xa5,0xcc,0x94,0xcd,0x82,0x00,0xd4,0xa8,0xd3,0x54,0xd2,0x28,0xd1,0x12,
+ 0x10,0x09,0x01,0xff,0xcf,0x89,0xcc,0x93,0x00,0x01,0xff,0xcf,0x89,0xcc,0x94,0x00,
+ 0x10,0x0b,0x01,0xff,0xcf,0x89,0xcc,0x93,0xcc,0x80,0x00,0x01,0xff,0xcf,0x89,0xcc,
+ 0x94,0xcc,0x80,0x00,0xd1,0x16,0x10,0x0b,0x01,0xff,0xcf,0x89,0xcc,0x93,0xcc,0x81,
+ 0x00,0x01,0xff,0xcf,0x89,0xcc,0x94,0xcc,0x81,0x00,0x10,0x0b,0x01,0xff,0xcf,0x89,
+ 0xcc,0x93,0xcd,0x82,0x00,0x01,0xff,0xcf,0x89,0xcc,0x94,0xcd,0x82,0x00,0xd2,0x28,
+ 0xd1,0x12,0x10,0x09,0x01,0xff,0xce,0xa9,0xcc,0x93,0x00,0x01,0xff,0xce,0xa9,0xcc,
+ 0x94,0x00,0x10,0x0b,0x01,0xff,0xce,0xa9,0xcc,0x93,0xcc,0x80,0x00,0x01,0xff,0xce,
+ 0xa9,0xcc,0x94,0xcc,0x80,0x00,0xd1,0x16,0x10,0x0b,0x01,0xff,0xce,0xa9,0xcc,0x93,
+ 0xcc,0x81,0x00,0x01,0xff,0xce,0xa9,0xcc,0x94,0xcc,0x81,0x00,0x10,0x0b,0x01,0xff,
+ 0xce,0xa9,0xcc,0x93,0xcd,0x82,0x00,0x01,0xff,0xce,0xa9,0xcc,0x94,0xcd,0x82,0x00,
+ 0xd3,0x48,0xd2,0x24,0xd1,0x12,0x10,0x09,0x01,0xff,0xce,0xb1,0xcc,0x80,0x00,0x01,
+ 0xff,0xce,0xb1,0xcc,0x81,0x00,0x10,0x09,0x01,0xff,0xce,0xb5,0xcc,0x80,0x00,0x01,
+ 0xff,0xce,0xb5,0xcc,0x81,0x00,0xd1,0x12,0x10,0x09,0x01,0xff,0xce,0xb7,0xcc,0x80,
+ 0x00,0x01,0xff,0xce,0xb7,0xcc,0x81,0x00,0x10,0x09,0x01,0xff,0xce,0xb9,0xcc,0x80,
+ 0x00,0x01,0xff,0xce,0xb9,0xcc,0x81,0x00,0xd2,0x24,0xd1,0x12,0x10,0x09,0x01,0xff,
+ 0xce,0xbf,0xcc,0x80,0x00,0x01,0xff,0xce,0xbf,0xcc,0x81,0x00,0x10,0x09,0x01,0xff,
+ 0xcf,0x85,0xcc,0x80,0x00,0x01,0xff,0xcf,0x85,0xcc,0x81,0x00,0x91,0x12,0x10,0x09,
+ 0x01,0xff,0xcf,0x89,0xcc,0x80,0x00,0x01,0xff,0xcf,0x89,0xcc,0x81,0x00,0x00,0x00,
+ 0xe0,0xe1,0x02,0xcf,0x86,0xe5,0x91,0x01,0xd4,0xc8,0xd3,0x64,0xd2,0x30,0xd1,0x16,
+ 0x10,0x0b,0x01,0xff,0xce,0xb1,0xcc,0x93,0xcd,0x85,0x00,0x01,0xff,0xce,0xb1,0xcc,
+ 0x94,0xcd,0x85,0x00,0x10,0x0d,0x01,0xff,0xce,0xb1,0xcc,0x93,0xcc,0x80,0xcd,0x85,
+ 0x00,0x01,0xff,0xce,0xb1,0xcc,0x94,0xcc,0x80,0xcd,0x85,0x00,0xd1,0x1a,0x10,0x0d,
+ 0x01,0xff,0xce,0xb1,0xcc,0x93,0xcc,0x81,0xcd,0x85,0x00,0x01,0xff,0xce,0xb1,0xcc,
+ 0x94,0xcc,0x81,0xcd,0x85,0x00,0x10,0x0d,0x01,0xff,0xce,0xb1,0xcc,0x93,0xcd,0x82,
+ 0xcd,0x85,0x00,0x01,0xff,0xce,0xb1,0xcc,0x94,0xcd,0x82,0xcd,0x85,0x00,0xd2,0x30,
+ 0xd1,0x16,0x10,0x0b,0x01,0xff,0xce,0x91,0xcc,0x93,0xcd,0x85,0x00,0x01,0xff,0xce,
+ 0x91,0xcc,0x94,0xcd,0x85,0x00,0x10,0x0d,0x01,0xff,0xce,0x91,0xcc,0x93,0xcc,0x80,
+ 0xcd,0x85,0x00,0x01,0xff,0xce,0x91,0xcc,0x94,0xcc,0x80,0xcd,0x85,0x00,0xd1,0x1a,
+ 0x10,0x0d,0x01,0xff,0xce,0x91,0xcc,0x93,0xcc,0x81,0xcd,0x85,0x00,0x01,0xff,0xce,
+ 0x91,0xcc,0x94,0xcc,0x81,0xcd,0x85,0x00,0x10,0x0d,0x01,0xff,0xce,0x91,0xcc,0x93,
+ 0xcd,0x82,0xcd,0x85,0x00,0x01,0xff,0xce,0x91,0xcc,0x94,0xcd,0x82,0xcd,0x85,0x00,
+ 0xd3,0x64,0xd2,0x30,0xd1,0x16,0x10,0x0b,0x01,0xff,0xce,0xb7,0xcc,0x93,0xcd,0x85,
+ 0x00,0x01,0xff,0xce,0xb7,0xcc,0x94,0xcd,0x85,0x00,0x10,0x0d,0x01,0xff,0xce,0xb7,
+ 0xcc,0x93,0xcc,0x80,0xcd,0x85,0x00,0x01,0xff,0xce,0xb7,0xcc,0x94,0xcc,0x80,0xcd,
+ 0x85,0x00,0xd1,0x1a,0x10,0x0d,0x01,0xff,0xce,0xb7,0xcc,0x93,0xcc,0x81,0xcd,0x85,
+ 0x00,0x01,0xff,0xce,0xb7,0xcc,0x94,0xcc,0x81,0xcd,0x85,0x00,0x10,0x0d,0x01,0xff,
+ 0xce,0xb7,0xcc,0x93,0xcd,0x82,0xcd,0x85,0x00,0x01,0xff,0xce,0xb7,0xcc,0x94,0xcd,
+ 0x82,0xcd,0x85,0x00,0xd2,0x30,0xd1,0x16,0x10,0x0b,0x01,0xff,0xce,0x97,0xcc,0x93,
+ 0xcd,0x85,0x00,0x01,0xff,0xce,0x97,0xcc,0x94,0xcd,0x85,0x00,0x10,0x0d,0x01,0xff,
+ 0xce,0x97,0xcc,0x93,0xcc,0x80,0xcd,0x85,0x00,0x01,0xff,0xce,0x97,0xcc,0x94,0xcc,
+ 0x80,0xcd,0x85,0x00,0xd1,0x1a,0x10,0x0d,0x01,0xff,0xce,0x97,0xcc,0x93,0xcc,0x81,
+ 0xcd,0x85,0x00,0x01,0xff,0xce,0x97,0xcc,0x94,0xcc,0x81,0xcd,0x85,0x00,0x10,0x0d,
+ 0x01,0xff,0xce,0x97,0xcc,0x93,0xcd,0x82,0xcd,0x85,0x00,0x01,0xff,0xce,0x97,0xcc,
+ 0x94,0xcd,0x82,0xcd,0x85,0x00,0xd4,0xc8,0xd3,0x64,0xd2,0x30,0xd1,0x16,0x10,0x0b,
+ 0x01,0xff,0xcf,0x89,0xcc,0x93,0xcd,0x85,0x00,0x01,0xff,0xcf,0x89,0xcc,0x94,0xcd,
+ 0x85,0x00,0x10,0x0d,0x01,0xff,0xcf,0x89,0xcc,0x93,0xcc,0x80,0xcd,0x85,0x00,0x01,
+ 0xff,0xcf,0x89,0xcc,0x94,0xcc,0x80,0xcd,0x85,0x00,0xd1,0x1a,0x10,0x0d,0x01,0xff,
+ 0xcf,0x89,0xcc,0x93,0xcc,0x81,0xcd,0x85,0x00,0x01,0xff,0xcf,0x89,0xcc,0x94,0xcc,
+ 0x81,0xcd,0x85,0x00,0x10,0x0d,0x01,0xff,0xcf,0x89,0xcc,0x93,0xcd,0x82,0xcd,0x85,
+ 0x00,0x01,0xff,0xcf,0x89,0xcc,0x94,0xcd,0x82,0xcd,0x85,0x00,0xd2,0x30,0xd1,0x16,
+ 0x10,0x0b,0x01,0xff,0xce,0xa9,0xcc,0x93,0xcd,0x85,0x00,0x01,0xff,0xce,0xa9,0xcc,
+ 0x94,0xcd,0x85,0x00,0x10,0x0d,0x01,0xff,0xce,0xa9,0xcc,0x93,0xcc,0x80,0xcd,0x85,
+ 0x00,0x01,0xff,0xce,0xa9,0xcc,0x94,0xcc,0x80,0xcd,0x85,0x00,0xd1,0x1a,0x10,0x0d,
+ 0x01,0xff,0xce,0xa9,0xcc,0x93,0xcc,0x81,0xcd,0x85,0x00,0x01,0xff,0xce,0xa9,0xcc,
+ 0x94,0xcc,0x81,0xcd,0x85,0x00,0x10,0x0d,0x01,0xff,0xce,0xa9,0xcc,0x93,0xcd,0x82,
+ 0xcd,0x85,0x00,0x01,0xff,0xce,0xa9,0xcc,0x94,0xcd,0x82,0xcd,0x85,0x00,0xd3,0x49,
+ 0xd2,0x26,0xd1,0x12,0x10,0x09,0x01,0xff,0xce,0xb1,0xcc,0x86,0x00,0x01,0xff,0xce,
+ 0xb1,0xcc,0x84,0x00,0x10,0x0b,0x01,0xff,0xce,0xb1,0xcc,0x80,0xcd,0x85,0x00,0x01,
+ 0xff,0xce,0xb1,0xcd,0x85,0x00,0xd1,0x0f,0x10,0x0b,0x01,0xff,0xce,0xb1,0xcc,0x81,
+ 0xcd,0x85,0x00,0x00,0x00,0x10,0x09,0x01,0xff,0xce,0xb1,0xcd,0x82,0x00,0x01,0xff,
+ 0xce,0xb1,0xcd,0x82,0xcd,0x85,0x00,0xd2,0x24,0xd1,0x12,0x10,0x09,0x01,0xff,0xce,
+ 0x91,0xcc,0x86,0x00,0x01,0xff,0xce,0x91,0xcc,0x84,0x00,0x10,0x09,0x01,0xff,0xce,
+ 0x91,0xcc,0x80,0x00,0x01,0xff,0xce,0x91,0xcc,0x81,0x00,0xd1,0x0d,0x10,0x09,0x01,
+ 0xff,0xce,0x91,0xcd,0x85,0x00,0x01,0x00,0x10,0x07,0x01,0xff,0xce,0xb9,0x00,0x01,
+ 0x00,0xcf,0x86,0xe5,0x16,0x01,0xd4,0x8f,0xd3,0x44,0xd2,0x21,0xd1,0x0d,0x10,0x04,
+ 0x01,0x00,0x01,0xff,0xc2,0xa8,0xcd,0x82,0x00,0x10,0x0b,0x01,0xff,0xce,0xb7,0xcc,
+ 0x80,0xcd,0x85,0x00,0x01,0xff,0xce,0xb7,0xcd,0x85,0x00,0xd1,0x0f,0x10,0x0b,0x01,
+ 0xff,0xce,0xb7,0xcc,0x81,0xcd,0x85,0x00,0x00,0x00,0x10,0x09,0x01,0xff,0xce,0xb7,
+ 0xcd,0x82,0x00,0x01,0xff,0xce,0xb7,0xcd,0x82,0xcd,0x85,0x00,0xd2,0x24,0xd1,0x12,
+ 0x10,0x09,0x01,0xff,0xce,0x95,0xcc,0x80,0x00,0x01,0xff,0xce,0x95,0xcc,0x81,0x00,
+ 0x10,0x09,0x01,0xff,0xce,0x97,0xcc,0x80,0x00,0x01,0xff,0xce,0x97,0xcc,0x81,0x00,
+ 0xd1,0x13,0x10,0x09,0x01,0xff,0xce,0x97,0xcd,0x85,0x00,0x01,0xff,0xe1,0xbe,0xbf,
+ 0xcc,0x80,0x00,0x10,0x0a,0x01,0xff,0xe1,0xbe,0xbf,0xcc,0x81,0x00,0x01,0xff,0xe1,
+ 0xbe,0xbf,0xcd,0x82,0x00,0xd3,0x40,0xd2,0x28,0xd1,0x12,0x10,0x09,0x01,0xff,0xce,
+ 0xb9,0xcc,0x86,0x00,0x01,0xff,0xce,0xb9,0xcc,0x84,0x00,0x10,0x0b,0x01,0xff,0xce,
+ 0xb9,0xcc,0x88,0xcc,0x80,0x00,0x01,0xff,0xce,0xb9,0xcc,0x88,0xcc,0x81,0x00,0x51,
+ 0x04,0x00,0x00,0x10,0x09,0x01,0xff,0xce,0xb9,0xcd,0x82,0x00,0x01,0xff,0xce,0xb9,
+ 0xcc,0x88,0xcd,0x82,0x00,0xd2,0x24,0xd1,0x12,0x10,0x09,0x01,0xff,0xce,0x99,0xcc,
+ 0x86,0x00,0x01,0xff,0xce,0x99,0xcc,0x84,0x00,0x10,0x09,0x01,0xff,0xce,0x99,0xcc,
+ 0x80,0x00,0x01,0xff,0xce,0x99,0xcc,0x81,0x00,0xd1,0x0e,0x10,0x04,0x00,0x00,0x01,
+ 0xff,0xe1,0xbf,0xbe,0xcc,0x80,0x00,0x10,0x0a,0x01,0xff,0xe1,0xbf,0xbe,0xcc,0x81,
+ 0x00,0x01,0xff,0xe1,0xbf,0xbe,0xcd,0x82,0x00,0xd4,0x93,0xd3,0x4e,0xd2,0x28,0xd1,
+ 0x12,0x10,0x09,0x01,0xff,0xcf,0x85,0xcc,0x86,0x00,0x01,0xff,0xcf,0x85,0xcc,0x84,
+ 0x00,0x10,0x0b,0x01,0xff,0xcf,0x85,0xcc,0x88,0xcc,0x80,0x00,0x01,0xff,0xcf,0x85,
+ 0xcc,0x88,0xcc,0x81,0x00,0xd1,0x12,0x10,0x09,0x01,0xff,0xcf,0x81,0xcc,0x93,0x00,
+ 0x01,0xff,0xcf,0x81,0xcc,0x94,0x00,0x10,0x09,0x01,0xff,0xcf,0x85,0xcd,0x82,0x00,
+ 0x01,0xff,0xcf,0x85,0xcc,0x88,0xcd,0x82,0x00,0xd2,0x24,0xd1,0x12,0x10,0x09,0x01,
+ 0xff,0xce,0xa5,0xcc,0x86,0x00,0x01,0xff,0xce,0xa5,0xcc,0x84,0x00,0x10,0x09,0x01,
+ 0xff,0xce,0xa5,0xcc,0x80,0x00,0x01,0xff,0xce,0xa5,0xcc,0x81,0x00,0xd1,0x12,0x10,
+ 0x09,0x01,0xff,0xce,0xa1,0xcc,0x94,0x00,0x01,0xff,0xc2,0xa8,0xcc,0x80,0x00,0x10,
+ 0x09,0x01,0xff,0xc2,0xa8,0xcc,0x81,0x00,0x01,0xff,0x60,0x00,0xd3,0x3b,0xd2,0x18,
+ 0x51,0x04,0x00,0x00,0x10,0x0b,0x01,0xff,0xcf,0x89,0xcc,0x80,0xcd,0x85,0x00,0x01,
+ 0xff,0xcf,0x89,0xcd,0x85,0x00,0xd1,0x0f,0x10,0x0b,0x01,0xff,0xcf,0x89,0xcc,0x81,
+ 0xcd,0x85,0x00,0x00,0x00,0x10,0x09,0x01,0xff,0xcf,0x89,0xcd,0x82,0x00,0x01,0xff,
+ 0xcf,0x89,0xcd,0x82,0xcd,0x85,0x00,0xd2,0x24,0xd1,0x12,0x10,0x09,0x01,0xff,0xce,
+ 0x9f,0xcc,0x80,0x00,0x01,0xff,0xce,0x9f,0xcc,0x81,0x00,0x10,0x09,0x01,0xff,0xce,
+ 0xa9,0xcc,0x80,0x00,0x01,0xff,0xce,0xa9,0xcc,0x81,0x00,0xd1,0x10,0x10,0x09,0x01,
+ 0xff,0xce,0xa9,0xcd,0x85,0x00,0x01,0xff,0xc2,0xb4,0x00,0x10,0x04,0x01,0x00,0x00,
+ 0x00,0xe0,0x7e,0x0c,0xcf,0x86,0xe5,0xbb,0x08,0xe4,0x14,0x06,0xe3,0xf7,0x02,0xe2,
+ 0xbd,0x01,0xd1,0xd0,0xd0,0x4f,0xcf,0x86,0xd5,0x2e,0x94,0x2a,0xd3,0x18,0x92,0x14,
+ 0x91,0x10,0x10,0x08,0x01,0xff,0xe2,0x80,0x82,0x00,0x01,0xff,0xe2,0x80,0x83,0x00,
+ 0x01,0x00,0x01,0x00,0x92,0x0d,0x51,0x04,0x01,0x00,0x10,0x04,0x01,0x00,0x01,0xff,
+ 0x00,0x01,0xff,0x00,0x01,0x00,0x94,0x1b,0x53,0x04,0x01,0x00,0xd2,0x09,0x11,0x04,
+ 0x01,0x00,0x01,0xff,0x00,0x51,0x05,0x01,0xff,0x00,0x10,0x05,0x01,0xff,0x00,0x04,
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+ 0x10,0x08,0x01,0xff,0xe8,0x81,0x86,0x00,0x01,0xff,0xe9,0x88,0xb4,0x00,0x10,0x08,
+ 0x01,0xff,0xe9,0x9b,0xb6,0x00,0x01,0xff,0xe9,0x9d,0x88,0x00,0xd1,0x10,0x10,0x08,
+ 0x01,0xff,0xe9,0xa0,0x98,0x00,0x01,0xff,0xe4,0xbe,0x8b,0x00,0x10,0x08,0x01,0xff,
+ 0xe7,0xa6,0xae,0x00,0x01,0xff,0xe9,0x86,0xb4,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,
+ 0x01,0xff,0xe9,0x9a,0xb8,0x00,0x01,0xff,0xe6,0x83,0xa1,0x00,0x10,0x08,0x01,0xff,
+ 0xe4,0xba,0x86,0x00,0x01,0xff,0xe5,0x83,0x9a,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,
+ 0xe5,0xaf,0xae,0x00,0x01,0xff,0xe5,0xb0,0xbf,0x00,0x10,0x08,0x01,0xff,0xe6,0x96,
+ 0x99,0x00,0x01,0xff,0xe6,0xa8,0x82,0x00,0xcf,0x86,0xe5,0x01,0x01,0xd4,0x80,0xd3,
+ 0x40,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0xe7,0x87,0x8e,0x00,0x01,0xff,0xe7,
+ 0x99,0x82,0x00,0x10,0x08,0x01,0xff,0xe8,0x93,0xbc,0x00,0x01,0xff,0xe9,0x81,0xbc,
+ 0x00,0xd1,0x10,0x10,0x08,0x01,0xff,0xe9,0xbe,0x8d,0x00,0x01,0xff,0xe6,0x9a,0x88,
+ 0x00,0x10,0x08,0x01,0xff,0xe9,0x98,0xae,0x00,0x01,0xff,0xe5,0x8a,0x89,0x00,0xd2,
+ 0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0xe6,0x9d,0xbb,0x00,0x01,0xff,0xe6,0x9f,0xb3,
+ 0x00,0x10,0x08,0x01,0xff,0xe6,0xb5,0x81,0x00,0x01,0xff,0xe6,0xba,0x9c,0x00,0xd1,
+ 0x10,0x10,0x08,0x01,0xff,0xe7,0x90,0x89,0x00,0x01,0xff,0xe7,0x95,0x99,0x00,0x10,
+ 0x08,0x01,0xff,0xe7,0xa1,0xab,0x00,0x01,0xff,0xe7,0xb4,0x90,0x00,0xd3,0x40,0xd2,
+ 0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0xe9,0xa1,0x9e,0x00,0x01,0xff,0xe5,0x85,0xad,
+ 0x00,0x10,0x08,0x01,0xff,0xe6,0x88,0xae,0x00,0x01,0xff,0xe9,0x99,0xb8,0x00,0xd1,
+ 0x10,0x10,0x08,0x01,0xff,0xe5,0x80,0xab,0x00,0x01,0xff,0xe5,0xb4,0x99,0x00,0x10,
+ 0x08,0x01,0xff,0xe6,0xb7,0xaa,0x00,0x01,0xff,0xe8,0xbc,0xaa,0x00,0xd2,0x20,0xd1,
+ 0x10,0x10,0x08,0x01,0xff,0xe5,0xbe,0x8b,0x00,0x01,0xff,0xe6,0x85,0x84,0x00,0x10,
+ 0x08,0x01,0xff,0xe6,0xa0,0x97,0x00,0x01,0xff,0xe7,0x8e,0x87,0x00,0xd1,0x10,0x10,
+ 0x08,0x01,0xff,0xe9,0x9a,0x86,0x00,0x01,0xff,0xe5,0x88,0xa9,0x00,0x10,0x08,0x01,
+ 0xff,0xe5,0x90,0x8f,0x00,0x01,0xff,0xe5,0xb1,0xa5,0x00,0xd4,0x80,0xd3,0x40,0xd2,
+ 0x20,0xd1,0x10,0x10,0x08,0x01,0xff,0xe6,0x98,0x93,0x00,0x01,0xff,0xe6,0x9d,0x8e,
+ 0x00,0x10,0x08,0x01,0xff,0xe6,0xa2,0xa8,0x00,0x01,0xff,0xe6,0xb3,0xa5,0x00,0xd1,
+ 0x10,0x10,0x08,0x01,0xff,0xe7,0x90,0x86,0x00,0x01,0xff,0xe7,0x97,0xa2,0x00,0x10,
+ 0x08,0x01,0xff,0xe7,0xbd,0xb9,0x00,0x01,0xff,0xe8,0xa3,0x8f,0x00,0xd2,0x20,0xd1,
+ 0x10,0x10,0x08,0x01,0xff,0xe8,0xa3,0xa1,0x00,0x01,0xff,0xe9,0x87,0x8c,0x00,0x10,
+ 0x08,0x01,0xff,0xe9,0x9b,0xa2,0x00,0x01,0xff,0xe5,0x8c,0xbf,0x00,0xd1,0x10,0x10,
+ 0x08,0x01,0xff,0xe6,0xba,0xba,0x00,0x01,0xff,0xe5,0x90,0x9d,0x00,0x10,0x08,0x01,
+ 0xff,0xe7,0x87,0x90,0x00,0x01,0xff,0xe7,0x92,0x98,0x00,0xd3,0x40,0xd2,0x20,0xd1,
+ 0x10,0x10,0x08,0x01,0xff,0xe8,0x97,0xba,0x00,0x01,0xff,0xe9,0x9a,0xa3,0x00,0x10,
+ 0x08,0x01,0xff,0xe9,0xb1,0x97,0x00,0x01,0xff,0xe9,0xba,0x9f,0x00,0xd1,0x10,0x10,
+ 0x08,0x01,0xff,0xe6,0x9e,0x97,0x00,0x01,0xff,0xe6,0xb7,0x8b,0x00,0x10,0x08,0x01,
+ 0xff,0xe8,0x87,0xa8,0x00,0x01,0xff,0xe7,0xab,0x8b,0x00,0xd2,0x20,0xd1,0x10,0x10,
+ 0x08,0x01,0xff,0xe7,0xac,0xa0,0x00,0x01,0xff,0xe7,0xb2,0x92,0x00,0x10,0x08,0x01,
+ 0xff,0xe7,0x8b,0x80,0x00,0x01,0xff,0xe7,0x82,0x99,0x00,0xd1,0x10,0x10,0x08,0x01,
+ 0xff,0xe8,0xad,0x98,0x00,0x01,0xff,0xe4,0xbb,0x80,0x00,0x10,0x08,0x01,0xff,0xe8,
+ 0x8c,0xb6,0x00,0x01,0xff,0xe5,0x88,0xba,0x00,0xe2,0xad,0x06,0xe1,0xc4,0x03,0xe0,
+ 0xcb,0x01,0xcf,0x86,0xd5,0xe4,0xd4,0x74,0xd3,0x40,0xd2,0x20,0xd1,0x10,0x10,0x08,
+ 0x01,0xff,0xe5,0x88,0x87,0x00,0x01,0xff,0xe5,0xba,0xa6,0x00,0x10,0x08,0x01,0xff,
+ 0xe6,0x8b,0x93,0x00,0x01,0xff,0xe7,0xb3,0x96,0x00,0xd1,0x10,0x10,0x08,0x01,0xff,
+ 0xe5,0xae,0x85,0x00,0x01,0xff,0xe6,0xb4,0x9e,0x00,0x10,0x08,0x01,0xff,0xe6,0x9a,
+ 0xb4,0x00,0x01,0xff,0xe8,0xbc,0xbb,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x01,0xff,
+ 0xe8,0xa1,0x8c,0x00,0x01,0xff,0xe9,0x99,0x8d,0x00,0x10,0x08,0x01,0xff,0xe8,0xa6,
+ 0x8b,0x00,0x01,0xff,0xe5,0xbb,0x93,0x00,0x91,0x10,0x10,0x08,0x01,0xff,0xe5,0x85,
+ 0x80,0x00,0x01,0xff,0xe5,0x97,0x80,0x00,0x01,0x00,0xd3,0x34,0xd2,0x18,0xd1,0x0c,
+ 0x10,0x08,0x01,0xff,0xe5,0xa1,0x9a,0x00,0x01,0x00,0x10,0x08,0x01,0xff,0xe6,0x99,
+ 0xb4,0x00,0x01,0x00,0xd1,0x0c,0x10,0x04,0x01,0x00,0x01,0xff,0xe5,0x87,0x9e,0x00,
+ 0x10,0x08,0x01,0xff,0xe7,0x8c,0xaa,0x00,0x01,0xff,0xe7,0x9b,0x8a,0x00,0xd2,0x20,
+ 0xd1,0x10,0x10,0x08,0x01,0xff,0xe7,0xa4,0xbc,0x00,0x01,0xff,0xe7,0xa5,0x9e,0x00,
+ 0x10,0x08,0x01,0xff,0xe7,0xa5,0xa5,0x00,0x01,0xff,0xe7,0xa6,0x8f,0x00,0xd1,0x10,
+ 0x10,0x08,0x01,0xff,0xe9,0x9d,0x96,0x00,0x01,0xff,0xe7,0xb2,0xbe,0x00,0x10,0x08,
+ 0x01,0xff,0xe7,0xbe,0xbd,0x00,0x01,0x00,0xd4,0x64,0xd3,0x30,0xd2,0x18,0xd1,0x0c,
+ 0x10,0x08,0x01,0xff,0xe8,0x98,0x92,0x00,0x01,0x00,0x10,0x08,0x01,0xff,0xe8,0xab,
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+ 0x10,0x08,0x01,0xff,0xe9,0xa3,0xaf,0x00,0x01,0xff,0xe9,0xa3,0xbc,0x00,0xd1,0x10,
+ 0x10,0x08,0x01,0xff,0xe9,0xa4,0xa8,0x00,0x01,0xff,0xe9,0xb6,0xb4,0x00,0x10,0x08,
+ 0x0d,0xff,0xe9,0x83,0x9e,0x00,0x0d,0xff,0xe9,0x9a,0xb7,0x00,0xd3,0x40,0xd2,0x20,
+ 0xd1,0x10,0x10,0x08,0x06,0xff,0xe4,0xbe,0xae,0x00,0x06,0xff,0xe5,0x83,0xa7,0x00,
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+ 0x10,0x08,0x06,0xff,0xe5,0x8b,0xa4,0x00,0x06,0xff,0xe5,0x8d,0x91,0x00,0x10,0x08,
+ 0x06,0xff,0xe5,0x96,0x9d,0x00,0x06,0xff,0xe5,0x98,0x86,0x00,0xd2,0x20,0xd1,0x10,
+ 0x10,0x08,0x06,0xff,0xe5,0x99,0xa8,0x00,0x06,0xff,0xe5,0xa1,0x80,0x00,0x10,0x08,
+ 0x06,0xff,0xe5,0xa2,0xa8,0x00,0x06,0xff,0xe5,0xb1,0xa4,0x00,0xd1,0x10,0x10,0x08,
+ 0x06,0xff,0xe5,0xb1,0xae,0x00,0x06,0xff,0xe6,0x82,0x94,0x00,0x10,0x08,0x06,0xff,
+ 0xe6,0x85,0xa8,0x00,0x06,0xff,0xe6,0x86,0x8e,0x00,0xcf,0x86,0xe5,0x01,0x01,0xd4,
+ 0x80,0xd3,0x40,0xd2,0x20,0xd1,0x10,0x10,0x08,0x06,0xff,0xe6,0x87,0xb2,0x00,0x06,
+ 0xff,0xe6,0x95,0x8f,0x00,0x10,0x08,0x06,0xff,0xe6,0x97,0xa2,0x00,0x06,0xff,0xe6,
+ 0x9a,0x91,0x00,0xd1,0x10,0x10,0x08,0x06,0xff,0xe6,0xa2,0x85,0x00,0x06,0xff,0xe6,
+ 0xb5,0xb7,0x00,0x10,0x08,0x06,0xff,0xe6,0xb8,0x9a,0x00,0x06,0xff,0xe6,0xbc,0xa2,
+ 0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x06,0xff,0xe7,0x85,0xae,0x00,0x06,0xff,0xe7,
+ 0x88,0xab,0x00,0x10,0x08,0x06,0xff,0xe7,0x90,0xa2,0x00,0x06,0xff,0xe7,0xa2,0x91,
+ 0x00,0xd1,0x10,0x10,0x08,0x06,0xff,0xe7,0xa4,0xbe,0x00,0x06,0xff,0xe7,0xa5,0x89,
+ 0x00,0x10,0x08,0x06,0xff,0xe7,0xa5,0x88,0x00,0x06,0xff,0xe7,0xa5,0x90,0x00,0xd3,
+ 0x40,0xd2,0x20,0xd1,0x10,0x10,0x08,0x06,0xff,0xe7,0xa5,0x96,0x00,0x06,0xff,0xe7,
+ 0xa5,0x9d,0x00,0x10,0x08,0x06,0xff,0xe7,0xa6,0x8d,0x00,0x06,0xff,0xe7,0xa6,0x8e,
+ 0x00,0xd1,0x10,0x10,0x08,0x06,0xff,0xe7,0xa9,0x80,0x00,0x06,0xff,0xe7,0xaa,0x81,
+ 0x00,0x10,0x08,0x06,0xff,0xe7,0xaf,0x80,0x00,0x06,0xff,0xe7,0xb7,0xb4,0x00,0xd2,
+ 0x20,0xd1,0x10,0x10,0x08,0x06,0xff,0xe7,0xb8,0x89,0x00,0x06,0xff,0xe7,0xb9,0x81,
+ 0x00,0x10,0x08,0x06,0xff,0xe7,0xbd,0xb2,0x00,0x06,0xff,0xe8,0x80,0x85,0x00,0xd1,
+ 0x10,0x10,0x08,0x06,0xff,0xe8,0x87,0xad,0x00,0x06,0xff,0xe8,0x89,0xb9,0x00,0x10,
+ 0x08,0x06,0xff,0xe8,0x89,0xb9,0x00,0x06,0xff,0xe8,0x91,0x97,0x00,0xd4,0x75,0xd3,
+ 0x40,0xd2,0x20,0xd1,0x10,0x10,0x08,0x06,0xff,0xe8,0xa4,0x90,0x00,0x06,0xff,0xe8,
+ 0xa6,0x96,0x00,0x10,0x08,0x06,0xff,0xe8,0xac,0x81,0x00,0x06,0xff,0xe8,0xac,0xb9,
+ 0x00,0xd1,0x10,0x10,0x08,0x06,0xff,0xe8,0xb3,0x93,0x00,0x06,0xff,0xe8,0xb4,0x88,
+ 0x00,0x10,0x08,0x06,0xff,0xe8,0xbe,0xb6,0x00,0x06,0xff,0xe9,0x80,0xb8,0x00,0xd2,
+ 0x20,0xd1,0x10,0x10,0x08,0x06,0xff,0xe9,0x9b,0xa3,0x00,0x06,0xff,0xe9,0x9f,0xbf,
+ 0x00,0x10,0x08,0x06,0xff,0xe9,0xa0,0xbb,0x00,0x0b,0xff,0xe6,0x81,0xb5,0x00,0x91,
+ 0x11,0x10,0x09,0x0b,0xff,0xf0,0xa4,0x8b,0xae,0x00,0x0b,0xff,0xe8,0x88,0x98,0x00,
+ 0x00,0x00,0xd3,0x40,0xd2,0x20,0xd1,0x10,0x10,0x08,0x08,0xff,0xe4,0xb8,0xa6,0x00,
+ 0x08,0xff,0xe5,0x86,0xb5,0x00,0x10,0x08,0x08,0xff,0xe5,0x85,0xa8,0x00,0x08,0xff,
+ 0xe4,0xbe,0x80,0x00,0xd1,0x10,0x10,0x08,0x08,0xff,0xe5,0x85,0x85,0x00,0x08,0xff,
+ 0xe5,0x86,0x80,0x00,0x10,0x08,0x08,0xff,0xe5,0x8b,0x87,0x00,0x08,0xff,0xe5,0x8b,
+ 0xba,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x08,0xff,0xe5,0x96,0x9d,0x00,0x08,0xff,
+ 0xe5,0x95,0x95,0x00,0x10,0x08,0x08,0xff,0xe5,0x96,0x99,0x00,0x08,0xff,0xe5,0x97,
+ 0xa2,0x00,0xd1,0x10,0x10,0x08,0x08,0xff,0xe5,0xa1,0x9a,0x00,0x08,0xff,0xe5,0xa2,
+ 0xb3,0x00,0x10,0x08,0x08,0xff,0xe5,0xa5,0x84,0x00,0x08,0xff,0xe5,0xa5,0x94,0x00,
+ 0xe0,0x04,0x02,0xcf,0x86,0xe5,0x01,0x01,0xd4,0x80,0xd3,0x40,0xd2,0x20,0xd1,0x10,
+ 0x10,0x08,0x08,0xff,0xe5,0xa9,0xa2,0x00,0x08,0xff,0xe5,0xac,0xa8,0x00,0x10,0x08,
+ 0x08,0xff,0xe5,0xbb,0x92,0x00,0x08,0xff,0xe5,0xbb,0x99,0x00,0xd1,0x10,0x10,0x08,
+ 0x08,0xff,0xe5,0xbd,0xa9,0x00,0x08,0xff,0xe5,0xbe,0xad,0x00,0x10,0x08,0x08,0xff,
+ 0xe6,0x83,0x98,0x00,0x08,0xff,0xe6,0x85,0x8e,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,
+ 0x08,0xff,0xe6,0x84,0x88,0x00,0x08,0xff,0xe6,0x86,0x8e,0x00,0x10,0x08,0x08,0xff,
+ 0xe6,0x85,0xa0,0x00,0x08,0xff,0xe6,0x87,0xb2,0x00,0xd1,0x10,0x10,0x08,0x08,0xff,
+ 0xe6,0x88,0xb4,0x00,0x08,0xff,0xe6,0x8f,0x84,0x00,0x10,0x08,0x08,0xff,0xe6,0x90,
+ 0x9c,0x00,0x08,0xff,0xe6,0x91,0x92,0x00,0xd3,0x40,0xd2,0x20,0xd1,0x10,0x10,0x08,
+ 0x08,0xff,0xe6,0x95,0x96,0x00,0x08,0xff,0xe6,0x99,0xb4,0x00,0x10,0x08,0x08,0xff,
+ 0xe6,0x9c,0x97,0x00,0x08,0xff,0xe6,0x9c,0x9b,0x00,0xd1,0x10,0x10,0x08,0x08,0xff,
+ 0xe6,0x9d,0x96,0x00,0x08,0xff,0xe6,0xad,0xb9,0x00,0x10,0x08,0x08,0xff,0xe6,0xae,
+ 0xba,0x00,0x08,0xff,0xe6,0xb5,0x81,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x08,0xff,
+ 0xe6,0xbb,0x9b,0x00,0x08,0xff,0xe6,0xbb,0x8b,0x00,0x10,0x08,0x08,0xff,0xe6,0xbc,
+ 0xa2,0x00,0x08,0xff,0xe7,0x80,0x9e,0x00,0xd1,0x10,0x10,0x08,0x08,0xff,0xe7,0x85,
+ 0xae,0x00,0x08,0xff,0xe7,0x9e,0xa7,0x00,0x10,0x08,0x08,0xff,0xe7,0x88,0xb5,0x00,
+ 0x08,0xff,0xe7,0x8a,0xaf,0x00,0xd4,0x80,0xd3,0x40,0xd2,0x20,0xd1,0x10,0x10,0x08,
+ 0x08,0xff,0xe7,0x8c,0xaa,0x00,0x08,0xff,0xe7,0x91,0xb1,0x00,0x10,0x08,0x08,0xff,
+ 0xe7,0x94,0x86,0x00,0x08,0xff,0xe7,0x94,0xbb,0x00,0xd1,0x10,0x10,0x08,0x08,0xff,
+ 0xe7,0x98,0x9d,0x00,0x08,0xff,0xe7,0x98,0x9f,0x00,0x10,0x08,0x08,0xff,0xe7,0x9b,
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+ 0x11,0x10,0x08,0x05,0xff,0xe6,0x9d,0x93,0x00,0x05,0xff,0xf0,0xa3,0x8f,0x83,0x00,
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+ 0xd3,0x41,0xd2,0x21,0xd1,0x10,0x10,0x08,0x05,0xff,0xe6,0x9e,0x85,0x00,0x05,0xff,
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+ 0xff,0xe6,0xad,0x94,0x00,0x10,0x08,0x05,0xff,0xe3,0xb1,0x8e,0x00,0x05,0xff,0xe6,
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+ 0xae,0xba,0x00,0x10,0x08,0x05,0xff,0xe6,0xae,0xbb,0x00,0x05,0xff,0xf0,0xa3,0xaa,
+ 0x8d,0x00,0xd2,0x23,0xd1,0x12,0x10,0x09,0x05,0xff,0xf0,0xa1,0xb4,0x8b,0x00,0x05,
+ 0xff,0xf0,0xa3,0xab,0xba,0x00,0x10,0x08,0x05,0xff,0xe6,0xb1,0x8e,0x00,0x05,0xff,
+ 0xf0,0xa3,0xb2,0xbc,0x00,0xd1,0x10,0x10,0x08,0x05,0xff,0xe6,0xb2,0xbf,0x00,0x05,
+ 0xff,0xe6,0xb3,0x8d,0x00,0x10,0x08,0x05,0xff,0xe6,0xb1,0xa7,0x00,0x05,0xff,0xe6,
+ 0xb4,0x96,0x00,0xe1,0x1d,0x04,0xe0,0x0c,0x02,0xcf,0x86,0xe5,0x08,0x01,0xd4,0x82,
+ 0xd3,0x41,0xd2,0x20,0xd1,0x10,0x10,0x08,0x05,0xff,0xe6,0xb4,0xbe,0x00,0x05,0xff,
+ 0xe6,0xb5,0xb7,0x00,0x10,0x08,0x05,0xff,0xe6,0xb5,0x81,0x00,0x05,0xff,0xe6,0xb5,
+ 0xa9,0x00,0xd1,0x10,0x10,0x08,0x05,0xff,0xe6,0xb5,0xb8,0x00,0x05,0xff,0xe6,0xb6,
+ 0x85,0x00,0x10,0x09,0x05,0xff,0xf0,0xa3,0xb4,0x9e,0x00,0x05,0xff,0xe6,0xb4,0xb4,
+ 0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x05,0xff,0xe6,0xb8,0xaf,0x00,0x05,0xff,0xe6,
+ 0xb9,0xae,0x00,0x10,0x08,0x05,0xff,0xe3,0xb4,0xb3,0x00,0x05,0xff,0xe6,0xbb,0x8b,
+ 0x00,0xd1,0x11,0x10,0x08,0x05,0xff,0xe6,0xbb,0x87,0x00,0x05,0xff,0xf0,0xa3,0xbb,
+ 0x91,0x00,0x10,0x08,0x05,0xff,0xe6,0xb7,0xb9,0x00,0x05,0xff,0xe6,0xbd,0xae,0x00,
+ 0xd3,0x42,0xd2,0x22,0xd1,0x12,0x10,0x09,0x05,0xff,0xf0,0xa3,0xbd,0x9e,0x00,0x05,
+ 0xff,0xf0,0xa3,0xbe,0x8e,0x00,0x10,0x08,0x05,0xff,0xe6,0xbf,0x86,0x00,0x05,0xff,
+ 0xe7,0x80,0xb9,0x00,0xd1,0x10,0x10,0x08,0x05,0xff,0xe7,0x80,0x9e,0x00,0x05,0xff,
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+ 0x8a,0x00,0xd2,0x21,0xd1,0x10,0x10,0x08,0x05,0xff,0xe7,0x81,0xbd,0x00,0x05,0xff,
+ 0xe7,0x81,0xb7,0x00,0x10,0x08,0x05,0xff,0xe7,0x82,0xad,0x00,0x05,0xff,0xf0,0xa0,
+ 0x94,0xa5,0x00,0xd1,0x11,0x10,0x08,0x05,0xff,0xe7,0x85,0x85,0x00,0x05,0xff,0xf0,
+ 0xa4,0x89,0xa3,0x00,0x10,0x08,0x05,0xff,0xe7,0x86,0x9c,0x00,0x05,0xff,0xf0,0xa4,
+ 0x8e,0xab,0x00,0xd4,0x7b,0xd3,0x43,0xd2,0x21,0xd1,0x10,0x10,0x08,0x05,0xff,0xe7,
+ 0x88,0xa8,0x00,0x05,0xff,0xe7,0x88,0xb5,0x00,0x10,0x08,0x05,0xff,0xe7,0x89,0x90,
+ 0x00,0x05,0xff,0xf0,0xa4,0x98,0x88,0x00,0xd1,0x10,0x10,0x08,0x05,0xff,0xe7,0x8a,
+ 0x80,0x00,0x05,0xff,0xe7,0x8a,0x95,0x00,0x10,0x09,0x05,0xff,0xf0,0xa4,0x9c,0xb5,
+ 0x00,0x05,0xff,0xf0,0xa4,0xa0,0x94,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x05,0xff,
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+ 0xac,0x00,0x05,0xff,0xe7,0x8e,0xa5,0x00,0x51,0x08,0x05,0xff,0xe3,0xba,0xb8,0x00,
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+ 0xd2,0x20,0xd1,0x10,0x10,0x08,0x05,0xff,0xe7,0x91,0xb1,0x00,0x05,0xff,0xe7,0x92,
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+ 0xd1,0x11,0x10,0x08,0x05,0xff,0xe7,0x94,0xa4,0x00,0x05,0xff,0xf0,0xa4,0xb0,0xb6,
+ 0x00,0x10,0x08,0x05,0xff,0xe7,0x94,0xbe,0x00,0x05,0xff,0xf0,0xa4,0xb2,0x92,0x00,
+ 0xd2,0x22,0xd1,0x11,0x10,0x08,0x05,0xff,0xe7,0x95,0xb0,0x00,0x05,0xff,0xf0,0xa2,
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+ 0xa1,0x00,0xd1,0x12,0x10,0x09,0x05,0xff,0xf0,0xa4,0xbe,0xb8,0x00,0x05,0xff,0xf0,
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+ 0x08,0x05,0xff,0xe7,0x9b,0xb4,0x00,0x05,0xff,0xf0,0xa5,0x83,0xb3,0x00,0x10,0x09,
+ 0x05,0xff,0xf0,0xa5,0x83,0xb2,0x00,0x05,0xff,0xf0,0xa5,0x84,0x99,0x00,0x91,0x11,
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+ 0xff,0xe7,0x9c,0x9f,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x05,0xff,0xe7,0x9d,0x8a,
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+ 0xff,0xe4,0x81,0x86,0x00,0xd1,0x11,0x10,0x08,0x05,0xff,0xe4,0x82,0x96,0x00,0x05,
+ 0xff,0xf0,0xa5,0x90,0x9d,0x00,0x10,0x08,0x05,0xff,0xe7,0xa1,0x8e,0x00,0x05,0xff,
+ 0xe7,0xa2,0x8c,0x00,0xd3,0x43,0xd2,0x21,0xd1,0x10,0x10,0x08,0x05,0xff,0xe7,0xa3,
+ 0x8c,0x00,0x05,0xff,0xe4,0x83,0xa3,0x00,0x10,0x09,0x05,0xff,0xf0,0xa5,0x98,0xa6,
+ 0x00,0x05,0xff,0xe7,0xa5,0x96,0x00,0xd1,0x12,0x10,0x09,0x05,0xff,0xf0,0xa5,0x9a,
+ 0x9a,0x00,0x05,0xff,0xf0,0xa5,0x9b,0x85,0x00,0x10,0x08,0x05,0xff,0xe7,0xa6,0x8f,
+ 0x00,0x05,0xff,0xe7,0xa7,0xab,0x00,0xd2,0x20,0xd1,0x10,0x10,0x08,0x05,0xff,0xe4,
+ 0x84,0xaf,0x00,0x05,0xff,0xe7,0xa9,0x80,0x00,0x10,0x08,0x05,0xff,0xe7,0xa9,0x8a,
+ 0x00,0x05,0xff,0xe7,0xa9,0x8f,0x00,0xd1,0x12,0x10,0x09,0x05,0xff,0xf0,0xa5,0xa5,
+ 0xbc,0x00,0x05,0xff,0xf0,0xa5,0xaa,0xa7,0x00,0x10,0x09,0x05,0xff,0xf0,0xa5,0xaa,
+ 0xa7,0x00,0x05,0xff,0xe7,0xab,0xae,0x00,0xd4,0x83,0xd3,0x42,0xd2,0x21,0xd1,0x11,
+ 0x10,0x08,0x05,0xff,0xe4,0x88,0x82,0x00,0x05,0xff,0xf0,0xa5,0xae,0xab,0x00,0x10,
+ 0x08,0x05,0xff,0xe7,0xaf,0x86,0x00,0x05,0xff,0xe7,0xaf,0x89,0x00,0xd1,0x11,0x10,
+ 0x08,0x05,0xff,0xe4,0x88,0xa7,0x00,0x05,0xff,0xf0,0xa5,0xb2,0x80,0x00,0x10,0x08,
+ 0x05,0xff,0xe7,0xb3,0x92,0x00,0x05,0xff,0xe4,0x8a,0xa0,0x00,0xd2,0x21,0xd1,0x10,
+ 0x10,0x08,0x05,0xff,0xe7,0xb3,0xa8,0x00,0x05,0xff,0xe7,0xb3,0xa3,0x00,0x10,0x08,
+ 0x05,0xff,0xe7,0xb4,0x80,0x00,0x05,0xff,0xf0,0xa5,0xbe,0x86,0x00,0xd1,0x10,0x10,
+ 0x08,0x05,0xff,0xe7,0xb5,0xa3,0x00,0x05,0xff,0xe4,0x8c,0x81,0x00,0x10,0x08,0x05,
+ 0xff,0xe7,0xb7,0x87,0x00,0x05,0xff,0xe7,0xb8,0x82,0x00,0xd3,0x44,0xd2,0x22,0xd1,
+ 0x10,0x10,0x08,0x05,0xff,0xe7,0xb9,0x85,0x00,0x05,0xff,0xe4,0x8c,0xb4,0x00,0x10,
+ 0x09,0x05,0xff,0xf0,0xa6,0x88,0xa8,0x00,0x05,0xff,0xf0,0xa6,0x89,0x87,0x00,0xd1,
+ 0x11,0x10,0x08,0x05,0xff,0xe4,0x8d,0x99,0x00,0x05,0xff,0xf0,0xa6,0x8b,0x99,0x00,
+ 0x10,0x08,0x05,0xff,0xe7,0xbd,0xba,0x00,0x05,0xff,0xf0,0xa6,0x8c,0xbe,0x00,0xd2,
+ 0x21,0xd1,0x10,0x10,0x08,0x05,0xff,0xe7,0xbe,0x95,0x00,0x05,0xff,0xe7,0xbf,0xba,
+ 0x00,0x10,0x08,0x05,0xff,0xe8,0x80,0x85,0x00,0x05,0xff,0xf0,0xa6,0x93,0x9a,0x00,
+ 0xd1,0x11,0x10,0x09,0x05,0xff,0xf0,0xa6,0x94,0xa3,0x00,0x05,0xff,0xe8,0x81,0xa0,
+ 0x00,0x10,0x09,0x05,0xff,0xf0,0xa6,0x96,0xa8,0x00,0x05,0xff,0xe8,0x81,0xb0,0x00,
+ 0xe0,0x11,0x02,0xcf,0x86,0xe5,0x07,0x01,0xd4,0x85,0xd3,0x42,0xd2,0x21,0xd1,0x11,
+ 0x10,0x09,0x05,0xff,0xf0,0xa3,0x8d,0x9f,0x00,0x05,0xff,0xe4,0x8f,0x95,0x00,0x10,
+ 0x08,0x05,0xff,0xe8,0x82,0xb2,0x00,0x05,0xff,0xe8,0x84,0x83,0x00,0xd1,0x10,0x10,
+ 0x08,0x05,0xff,0xe4,0x90,0x8b,0x00,0x05,0xff,0xe8,0x84,0xbe,0x00,0x10,0x08,0x05,
+ 0xff,0xe5,0xaa,0xb5,0x00,0x05,0xff,0xf0,0xa6,0x9e,0xa7,0x00,0xd2,0x23,0xd1,0x12,
+ 0x10,0x09,0x05,0xff,0xf0,0xa6,0x9e,0xb5,0x00,0x05,0xff,0xf0,0xa3,0x8e,0x93,0x00,
+ 0x10,0x09,0x05,0xff,0xf0,0xa3,0x8e,0x9c,0x00,0x05,0xff,0xe8,0x88,0x81,0x00,0xd1,
+ 0x10,0x10,0x08,0x05,0xff,0xe8,0x88,0x84,0x00,0x05,0xff,0xe8,0xbe,0x9e,0x00,0x10,
+ 0x08,0x05,0xff,0xe4,0x91,0xab,0x00,0x05,0xff,0xe8,0x8a,0x91,0x00,0xd3,0x41,0xd2,
+ 0x20,0xd1,0x10,0x10,0x08,0x05,0xff,0xe8,0x8a,0x8b,0x00,0x05,0xff,0xe8,0x8a,0x9d,
+ 0x00,0x10,0x08,0x05,0xff,0xe5,0x8a,0xb3,0x00,0x05,0xff,0xe8,0x8a,0xb1,0x00,0xd1,
+ 0x10,0x10,0x08,0x05,0xff,0xe8,0x8a,0xb3,0x00,0x05,0xff,0xe8,0x8a,0xbd,0x00,0x10,
+ 0x08,0x05,0xff,0xe8,0x8b,0xa6,0x00,0x05,0xff,0xf0,0xa6,0xac,0xbc,0x00,0xd2,0x20,
+ 0xd1,0x10,0x10,0x08,0x05,0xff,0xe8,0x8b,0xa5,0x00,0x05,0xff,0xe8,0x8c,0x9d,0x00,
+ 0x10,0x08,0x05,0xff,0xe8,0x8d,0xa3,0x00,0x05,0xff,0xe8,0x8e,0xad,0x00,0xd1,0x10,
+ 0x10,0x08,0x05,0xff,0xe8,0x8c,0xa3,0x00,0x05,0xff,0xe8,0x8e,0xbd,0x00,0x10,0x08,
+ 0x05,0xff,0xe8,0x8f,0xa7,0x00,0x05,0xff,0xe8,0x91,0x97,0x00,0xd4,0x85,0xd3,0x43,
+ 0xd2,0x20,0xd1,0x10,0x10,0x08,0x05,0xff,0xe8,0x8d,0x93,0x00,0x05,0xff,0xe8,0x8f,
+ 0x8a,0x00,0x10,0x08,0x05,0xff,0xe8,0x8f,0x8c,0x00,0x05,0xff,0xe8,0x8f,0x9c,0x00,
+ 0xd1,0x12,0x10,0x09,0x05,0xff,0xf0,0xa6,0xb0,0xb6,0x00,0x05,0xff,0xf0,0xa6,0xb5,
+ 0xab,0x00,0x10,0x09,0x05,0xff,0xf0,0xa6,0xb3,0x95,0x00,0x05,0xff,0xe4,0x94,0xab,
+ 0x00,0xd2,0x21,0xd1,0x10,0x10,0x08,0x05,0xff,0xe8,0x93,0xb1,0x00,0x05,0xff,0xe8,
+ 0x93,0xb3,0x00,0x10,0x08,0x05,0xff,0xe8,0x94,0x96,0x00,0x05,0xff,0xf0,0xa7,0x8f,
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+ 0xff,0xe8,0x99,0x90,0x00,0xd1,0x10,0x10,0x08,0x05,0xff,0xe8,0x99,0x9c,0x00,0x05,
+ 0xff,0xe8,0x99,0xa7,0x00,0x10,0x08,0x05,0xff,0xe8,0x99,0xa9,0x00,0x05,0xff,0xe8,
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+ 0x06,0x00,0x00,0xd0,0x06,0xcf,0x06,0x00,0x00,0xcf,0x86,0x55,0x04,0x00,0x00,0x54,
+ 0x04,0x00,0x00,0x53,0x04,0x00,0x00,0x52,0x04,0x00,0x00,0x11,0x04,0x00,0x00,0x02,
+ 0x00,0xd4,0xd9,0xd3,0x81,0xd2,0x79,0xd1,0x71,0xd0,0x69,0xcf,0x86,0xd5,0x60,0xd4,
+ 0x59,0xd3,0x52,0xd2,0x33,0xd1,0x2c,0xd0,0x25,0xcf,0x86,0x95,0x1e,0x94,0x19,0x93,
+ 0x14,0x92,0x0f,0x91,0x0a,0x10,0x05,0x00,0xff,0x00,0x05,0xff,0x00,0x00,0xff,0x00,
+ 0x00,0xff,0x00,0x00,0xff,0x00,0x00,0xff,0x00,0x05,0xff,0x00,0xcf,0x06,0x05,0xff,
+ 0x00,0xcf,0x06,0x00,0xff,0x00,0xd1,0x07,0xcf,0x06,0x07,0xff,0x00,0xd0,0x07,0xcf,
+ 0x06,0x07,0xff,0x00,0xcf,0x86,0x55,0x05,0x07,0xff,0x00,0x14,0x05,0x07,0xff,0x00,
+ 0x00,0xff,0x00,0xcf,0x06,0x00,0xff,0x00,0xcf,0x06,0x00,0xff,0x00,0xcf,0x06,0x00,
+ 0xff,0x00,0xcf,0x86,0xcf,0x06,0x00,0x00,0xcf,0x86,0xcf,0x06,0x00,0x00,0xcf,0x86,
+ 0xcf,0x06,0x00,0x00,0xd2,0x08,0xcf,0x86,0xcf,0x06,0x00,0x00,0xd1,0x08,0xcf,0x86,
+ 0xcf,0x06,0x00,0x00,0xd0,0x08,0xcf,0x86,0xcf,0x06,0x00,0x00,0xcf,0x86,0xd5,0x06,
+ 0xcf,0x06,0x00,0x00,0xd4,0x06,0xcf,0x06,0x00,0x00,0xd3,0x06,0xcf,0x06,0x00,0x00,
+ 0xd2,0x06,0xcf,0x06,0x00,0x00,0xd1,0x06,0xcf,0x06,0x00,0x00,0xd0,0x06,0xcf,0x06,
+ 0x00,0x00,0xcf,0x86,0x55,0x04,0x00,0x00,0x54,0x04,0x00,0x00,0x53,0x04,0x00,0x00,
+ 0x52,0x04,0x00,0x00,0x11,0x04,0x00,0x00,0x02,0x00,0xcf,0x86,0xcf,0x06,0x02,0x00,
+ 0x81,0x80,0xcf,0x86,0x85,0x84,0xcf,0x86,0xcf,0x06,0x02,0x00,0x00,0x00,0x00,0x00
+};
diff --git a/fs/unicode/utf8n.h b/fs/unicode/utf8n.h
new file mode 100644
index 0000000..a1206380
--- /dev/null
+++ b/fs/unicode/utf8n.h
@@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 2014 SGI.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef UTF8NORM_H
+#define UTF8NORM_H
+
+#include <linux/types.h>
+#include <linux/export.h>
+#include <linux/string.h>
+#include <linux/module.h>
+
+/* Encoding a unicode version number as a single unsigned int. */
+#define UNICODE_MAJ_SHIFT (16)
+#define UNICODE_MIN_SHIFT (8)
+
+#define UNICODE_AGE(MAJ, MIN, REV) \
+ (((unsigned int)(MAJ) << UNICODE_MAJ_SHIFT) | \
+ ((unsigned int)(MIN) << UNICODE_MIN_SHIFT) | \
+ ((unsigned int)(REV)))
+
+/* Highest unicode version supported by the data tables. */
+extern int utf8version_is_supported(u8 maj, u8 min, u8 rev);
+extern int utf8version_latest(void);
+
+/*
+ * Look for the correct const struct utf8data for a unicode version.
+ * Returns NULL if the version requested is too new.
+ *
+ * Two normalization forms are supported: nfdi and nfdicf.
+ *
+ * nfdi:
+ * - Apply unicode normalization form NFD.
+ * - Remove any Default_Ignorable_Code_Point.
+ *
+ * nfdicf:
+ * - Apply unicode normalization form NFD.
+ * - Remove any Default_Ignorable_Code_Point.
+ * - Apply a full casefold (C + F).
+ */
+extern const struct utf8data *utf8nfdi(unsigned int maxage);
+extern const struct utf8data *utf8nfdicf(unsigned int maxage);
+
+/*
+ * Determine the maximum age of any unicode character in the string.
+ * Returns 0 if only unassigned code points are present.
+ * Returns -1 if the input is not valid UTF-8.
+ */
+extern int utf8agemax(const struct utf8data *data, const char *s);
+extern int utf8nagemax(const struct utf8data *data, const char *s, size_t len);
+
+/*
+ * Determine the minimum age of any unicode character in the string.
+ * Returns 0 if any unassigned code points are present.
+ * Returns -1 if the input is not valid UTF-8.
+ */
+extern int utf8agemin(const struct utf8data *data, const char *s);
+extern int utf8nagemin(const struct utf8data *data, const char *s, size_t len);
+
+/*
+ * Determine the length of the normalized from of the string,
+ * excluding any terminating NULL byte.
+ * Returns 0 if only ignorable code points are present.
+ * Returns -1 if the input is not valid UTF-8.
+ */
+extern ssize_t utf8len(const struct utf8data *data, const char *s);
+extern ssize_t utf8nlen(const struct utf8data *data, const char *s, size_t len);
+
+/* Needed in struct utf8cursor below. */
+#define UTF8HANGULLEAF (12)
+
+/*
+ * Cursor structure used by the normalizer.
+ */
+struct utf8cursor {
+ const struct utf8data *data;
+ const char *s;
+ const char *p;
+ const char *ss;
+ const char *sp;
+ unsigned int len;
+ unsigned int slen;
+ short int ccc;
+ short int nccc;
+ unsigned char hangul[UTF8HANGULLEAF];
+};
+
+/*
+ * Initialize a utf8cursor to normalize a string.
+ * Returns 0 on success.
+ * Returns -1 on failure.
+ */
+extern int utf8cursor(struct utf8cursor *u8c, const struct utf8data *data,
+ const char *s);
+extern int utf8ncursor(struct utf8cursor *u8c, const struct utf8data *data,
+ const char *s, size_t len);
+
+/*
+ * Get the next byte in the normalization.
+ * Returns a value > 0 && < 256 on success.
+ * Returns 0 when the end of the normalization is reached.
+ * Returns -1 if the string being normalized is not valid UTF-8.
+ */
+extern int utf8byte(struct utf8cursor *u8c);
+
+#endif /* UTF8NORM_H */
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index 23c8efc..0c6e16e 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -913,7 +913,8 @@ static int userfaultfd_release(struct inode *inode, struct file *file)
new_flags, vma->anon_vma,
vma->vm_file, vma->vm_pgoff,
vma_policy(vma),
- NULL_VM_UFFD_CTX);
+ NULL_VM_UFFD_CTX,
+ vma_get_anon_name(vma));
if (prev)
vma = prev;
else
@@ -1268,21 +1269,23 @@ static __always_inline void wake_userfault(struct userfaultfd_ctx *ctx,
}
static __always_inline int validate_range(struct mm_struct *mm,
- __u64 start, __u64 len)
+ __u64 *start, __u64 len)
{
__u64 task_size = mm->task_size;
- if (start & ~PAGE_MASK)
+ *start = untagged_addr(*start);
+
+ if (*start & ~PAGE_MASK)
return -EINVAL;
if (len & ~PAGE_MASK)
return -EINVAL;
if (!len)
return -EINVAL;
- if (start < mmap_min_addr)
+ if (*start < mmap_min_addr)
return -EINVAL;
- if (start >= task_size)
+ if (*start >= task_size)
return -EINVAL;
- if (len > task_size - start)
+ if (len > task_size - *start)
return -EINVAL;
return 0;
}
@@ -1332,7 +1335,7 @@ static int userfaultfd_register(struct userfaultfd_ctx *ctx,
goto out;
}
- ret = validate_range(mm, uffdio_register.range.start,
+ ret = validate_range(mm, &uffdio_register.range.start,
uffdio_register.range.len);
if (ret)
goto out;
@@ -1458,7 +1461,8 @@ static int userfaultfd_register(struct userfaultfd_ctx *ctx,
prev = vma_merge(mm, prev, start, vma_end, new_flags,
vma->anon_vma, vma->vm_file, vma->vm_pgoff,
vma_policy(vma),
- ((struct vm_userfaultfd_ctx){ ctx }));
+ ((struct vm_userfaultfd_ctx){ ctx }),
+ vma_get_anon_name(vma));
if (prev) {
vma = prev;
goto next;
@@ -1521,7 +1525,7 @@ static int userfaultfd_unregister(struct userfaultfd_ctx *ctx,
if (copy_from_user(&uffdio_unregister, buf, sizeof(uffdio_unregister)))
goto out;
- ret = validate_range(mm, uffdio_unregister.start,
+ ret = validate_range(mm, &uffdio_unregister.start,
uffdio_unregister.len);
if (ret)
goto out;
@@ -1620,7 +1624,8 @@ static int userfaultfd_unregister(struct userfaultfd_ctx *ctx,
prev = vma_merge(mm, prev, start, vma_end, new_flags,
vma->anon_vma, vma->vm_file, vma->vm_pgoff,
vma_policy(vma),
- NULL_VM_UFFD_CTX);
+ NULL_VM_UFFD_CTX,
+ vma_get_anon_name(vma));
if (prev) {
vma = prev;
goto next;
@@ -1672,7 +1677,7 @@ static int userfaultfd_wake(struct userfaultfd_ctx *ctx,
if (copy_from_user(&uffdio_wake, buf, sizeof(uffdio_wake)))
goto out;
- ret = validate_range(ctx->mm, uffdio_wake.start, uffdio_wake.len);
+ ret = validate_range(ctx->mm, &uffdio_wake.start, uffdio_wake.len);
if (ret)
goto out;
@@ -1712,7 +1717,7 @@ static int userfaultfd_copy(struct userfaultfd_ctx *ctx,
sizeof(uffdio_copy)-sizeof(__s64)))
goto out;
- ret = validate_range(ctx->mm, uffdio_copy.dst, uffdio_copy.len);
+ ret = validate_range(ctx->mm, &uffdio_copy.dst, uffdio_copy.len);
if (ret)
goto out;
/*
@@ -1768,7 +1773,7 @@ static int userfaultfd_zeropage(struct userfaultfd_ctx *ctx,
sizeof(uffdio_zeropage)-sizeof(__s64)))
goto out;
- ret = validate_range(ctx->mm, uffdio_zeropage.range.start,
+ ret = validate_range(ctx->mm, &uffdio_zeropage.range.start,
uffdio_zeropage.range.len);
if (ret)
goto out;
diff --git a/fs/verity/Kconfig b/fs/verity/Kconfig
new file mode 100644
index 0000000..88fb251
--- /dev/null
+++ b/fs/verity/Kconfig
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: GPL-2.0
+
+config FS_VERITY
+ bool "FS Verity (read-only file-based authenticity protection)"
+ select CRYPTO
+ # SHA-256 is selected as it's intended to be the default hash algorithm.
+ # To avoid bloat, other wanted algorithms must be selected explicitly.
+ select CRYPTO_SHA256
+ help
+ This option enables fs-verity. fs-verity is the dm-verity
+ mechanism implemented at the file level. On supported
+ filesystems (currently EXT4 and F2FS), userspace can use an
+ ioctl to enable verity for a file, which causes the filesystem
+ to build a Merkle tree for the file. The filesystem will then
+ transparently verify any data read from the file against the
+ Merkle tree. The file is also made read-only.
+
+ This serves as an integrity check, but the availability of the
+ Merkle tree root hash also allows efficiently supporting
+ various use cases where normally the whole file would need to
+ be hashed at once, such as: (a) auditing (logging the file's
+ hash), or (b) authenticity verification (comparing the hash
+ against a known good value, e.g. from a digital signature).
+
+ fs-verity is especially useful on large files where not all
+ the contents may actually be needed. Also, fs-verity verifies
+ data each time it is paged back in, which provides better
+ protection against malicious disks vs. an ahead-of-time hash.
+
+ If unsure, say N.
+
+config FS_VERITY_DEBUG
+ bool "FS Verity debugging"
+ depends on FS_VERITY
+ help
+ Enable debugging messages related to fs-verity by default.
+
+ Say N unless you are an fs-verity developer.
+
+config FS_VERITY_BUILTIN_SIGNATURES
+ bool "FS Verity builtin signature support"
+ depends on FS_VERITY
+ select SYSTEM_DATA_VERIFICATION
+ help
+ Support verifying signatures of verity files against the X.509
+ certificates that have been loaded into the ".fs-verity"
+ kernel keyring.
+
+ This is meant as a relatively simple mechanism that can be
+ used to provide an authenticity guarantee for verity files, as
+ an alternative to IMA appraisal. Userspace programs still
+ need to check that the verity bit is set in order to get an
+ authenticity guarantee.
+
+ If unsure, say N.
diff --git a/fs/verity/Makefile b/fs/verity/Makefile
new file mode 100644
index 0000000..570e913
--- /dev/null
+++ b/fs/verity/Makefile
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0
+
+obj-$(CONFIG_FS_VERITY) += enable.o \
+ hash_algs.o \
+ init.o \
+ measure.o \
+ open.o \
+ verify.o
+
+obj-$(CONFIG_FS_VERITY_BUILTIN_SIGNATURES) += signature.o
diff --git a/fs/verity/enable.c b/fs/verity/enable.c
new file mode 100644
index 0000000..835c339
--- /dev/null
+++ b/fs/verity/enable.c
@@ -0,0 +1,418 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Ioctl to enable verity on a file
+ *
+ * Copyright 2019 Google LLC
+ */
+
+#include "fsverity_private.h"
+
+#include <crypto/hash.h>
+#include <linux/backing-dev.h>
+#include <linux/mount.h>
+#include <linux/pagemap.h>
+#include <linux/sched/signal.h>
+#include <linux/uaccess.h>
+
+/*
+ * Read a file data page for Merkle tree construction. Do aggressive readahead,
+ * since we're sequentially reading the entire file.
+ */
+static struct page *read_file_data_page(struct file *filp, pgoff_t index,
+ struct file_ra_state *ra,
+ unsigned long remaining_pages)
+{
+ struct page *page;
+
+ page = find_get_page_flags(filp->f_mapping, index, FGP_ACCESSED);
+ if (!page || !PageUptodate(page)) {
+ if (page)
+ put_page(page);
+ else
+ page_cache_sync_readahead(filp->f_mapping, ra, filp,
+ index, remaining_pages);
+ page = read_mapping_page(filp->f_mapping, index, NULL);
+ if (IS_ERR(page))
+ return page;
+ }
+ if (PageReadahead(page))
+ page_cache_async_readahead(filp->f_mapping, ra, filp, page,
+ index, remaining_pages);
+ return page;
+}
+
+static int build_merkle_tree_level(struct file *filp, unsigned int level,
+ u64 num_blocks_to_hash,
+ const struct merkle_tree_params *params,
+ u8 *pending_hashes,
+ struct ahash_request *req)
+{
+ struct inode *inode = file_inode(filp);
+ const struct fsverity_operations *vops = inode->i_sb->s_vop;
+ struct file_ra_state ra = { 0 };
+ unsigned int pending_size = 0;
+ u64 dst_block_num;
+ u64 i;
+ int err;
+
+ if (WARN_ON(params->block_size != PAGE_SIZE)) /* checked earlier too */
+ return -EINVAL;
+
+ if (level < params->num_levels) {
+ dst_block_num = params->level_start[level];
+ } else {
+ if (WARN_ON(num_blocks_to_hash != 1))
+ return -EINVAL;
+ dst_block_num = 0; /* unused */
+ }
+
+ file_ra_state_init(&ra, filp->f_mapping);
+
+ for (i = 0; i < num_blocks_to_hash; i++) {
+ struct page *src_page;
+
+ if ((pgoff_t)i % 10000 == 0 || i + 1 == num_blocks_to_hash)
+ pr_debug("Hashing block %llu of %llu for level %u\n",
+ i + 1, num_blocks_to_hash, level);
+
+ if (level == 0) {
+ /* Leaf: hashing a data block */
+ src_page = read_file_data_page(filp, i, &ra,
+ num_blocks_to_hash - i);
+ if (IS_ERR(src_page)) {
+ err = PTR_ERR(src_page);
+ fsverity_err(inode,
+ "Error %d reading data page %llu",
+ err, i);
+ return err;
+ }
+ } else {
+ unsigned long num_ra_pages =
+ min_t(unsigned long, num_blocks_to_hash - i,
+ inode->i_sb->s_bdi->io_pages);
+
+ /* Non-leaf: hashing hash block from level below */
+ src_page = vops->read_merkle_tree_page(inode,
+ params->level_start[level - 1] + i,
+ num_ra_pages);
+ if (IS_ERR(src_page)) {
+ err = PTR_ERR(src_page);
+ fsverity_err(inode,
+ "Error %d reading Merkle tree page %llu",
+ err, params->level_start[level - 1] + i);
+ return err;
+ }
+ }
+
+ err = fsverity_hash_page(params, inode, req, src_page,
+ &pending_hashes[pending_size]);
+ put_page(src_page);
+ if (err)
+ return err;
+ pending_size += params->digest_size;
+
+ if (level == params->num_levels) /* Root hash? */
+ return 0;
+
+ if (pending_size + params->digest_size > params->block_size ||
+ i + 1 == num_blocks_to_hash) {
+ /* Flush the pending hash block */
+ memset(&pending_hashes[pending_size], 0,
+ params->block_size - pending_size);
+ err = vops->write_merkle_tree_block(inode,
+ pending_hashes,
+ dst_block_num,
+ params->log_blocksize);
+ if (err) {
+ fsverity_err(inode,
+ "Error %d writing Merkle tree block %llu",
+ err, dst_block_num);
+ return err;
+ }
+ dst_block_num++;
+ pending_size = 0;
+ }
+
+ if (fatal_signal_pending(current))
+ return -EINTR;
+ cond_resched();
+ }
+ return 0;
+}
+
+/*
+ * Build the Merkle tree for the given file using the given parameters, and
+ * return the root hash in @root_hash.
+ *
+ * The tree is written to a filesystem-specific location as determined by the
+ * ->write_merkle_tree_block() method. However, the blocks that comprise the
+ * tree are the same for all filesystems.
+ */
+static int build_merkle_tree(struct file *filp,
+ const struct merkle_tree_params *params,
+ u8 *root_hash)
+{
+ struct inode *inode = file_inode(filp);
+ u8 *pending_hashes;
+ struct ahash_request *req;
+ u64 blocks;
+ unsigned int level;
+ int err = -ENOMEM;
+
+ if (inode->i_size == 0) {
+ /* Empty file is a special case; root hash is all 0's */
+ memset(root_hash, 0, params->digest_size);
+ return 0;
+ }
+
+ /* This allocation never fails, since it's mempool-backed. */
+ req = fsverity_alloc_hash_request(params->hash_alg, GFP_KERNEL);
+
+ pending_hashes = kmalloc(params->block_size, GFP_KERNEL);
+ if (!pending_hashes)
+ goto out;
+
+ /*
+ * Build each level of the Merkle tree, starting at the leaf level
+ * (level 0) and ascending to the root node (level 'num_levels - 1').
+ * Then at the end (level 'num_levels'), calculate the root hash.
+ */
+ blocks = (inode->i_size + params->block_size - 1) >>
+ params->log_blocksize;
+ for (level = 0; level <= params->num_levels; level++) {
+ err = build_merkle_tree_level(filp, level, blocks, params,
+ pending_hashes, req);
+ if (err)
+ goto out;
+ blocks = (blocks + params->hashes_per_block - 1) >>
+ params->log_arity;
+ }
+ memcpy(root_hash, pending_hashes, params->digest_size);
+ err = 0;
+out:
+ kfree(pending_hashes);
+ fsverity_free_hash_request(params->hash_alg, req);
+ return err;
+}
+
+static int enable_verity(struct file *filp,
+ const struct fsverity_enable_arg *arg)
+{
+ struct inode *inode = file_inode(filp);
+ const struct fsverity_operations *vops = inode->i_sb->s_vop;
+ struct merkle_tree_params params = { };
+ struct fsverity_descriptor *desc;
+ size_t desc_size = sizeof(*desc) + arg->sig_size;
+ struct fsverity_info *vi;
+ int err;
+
+ /* Start initializing the fsverity_descriptor */
+ desc = kzalloc(desc_size, GFP_KERNEL);
+ if (!desc)
+ return -ENOMEM;
+ desc->version = 1;
+ desc->hash_algorithm = arg->hash_algorithm;
+ desc->log_blocksize = ilog2(arg->block_size);
+
+ /* Get the salt if the user provided one */
+ if (arg->salt_size &&
+ copy_from_user(desc->salt, u64_to_user_ptr(arg->salt_ptr),
+ arg->salt_size)) {
+ err = -EFAULT;
+ goto out;
+ }
+ desc->salt_size = arg->salt_size;
+
+ /* Get the signature if the user provided one */
+ if (arg->sig_size &&
+ copy_from_user(desc->signature, u64_to_user_ptr(arg->sig_ptr),
+ arg->sig_size)) {
+ err = -EFAULT;
+ goto out;
+ }
+ desc->sig_size = cpu_to_le32(arg->sig_size);
+
+ desc->data_size = cpu_to_le64(inode->i_size);
+
+ /* Prepare the Merkle tree parameters */
+ err = fsverity_init_merkle_tree_params(¶ms, inode,
+ arg->hash_algorithm,
+ desc->log_blocksize,
+ desc->salt, desc->salt_size);
+ if (err)
+ goto out;
+
+ /*
+ * Start enabling verity on this file, serialized by the inode lock.
+ * Fail if verity is already enabled or is already being enabled.
+ */
+ inode_lock(inode);
+ if (IS_VERITY(inode))
+ err = -EEXIST;
+ else
+ err = vops->begin_enable_verity(filp);
+ inode_unlock(inode);
+ if (err)
+ goto out;
+
+ /*
+ * Build the Merkle tree. Don't hold the inode lock during this, since
+ * on huge files this may take a very long time and we don't want to
+ * force unrelated syscalls like chown() to block forever. We don't
+ * need the inode lock here because deny_write_access() already prevents
+ * the file from being written to or truncated, and we still serialize
+ * ->begin_enable_verity() and ->end_enable_verity() using the inode
+ * lock and only allow one process to be here at a time on a given file.
+ */
+ pr_debug("Building Merkle tree...\n");
+ BUILD_BUG_ON(sizeof(desc->root_hash) < FS_VERITY_MAX_DIGEST_SIZE);
+ err = build_merkle_tree(filp, ¶ms, desc->root_hash);
+ if (err) {
+ fsverity_err(inode, "Error %d building Merkle tree", err);
+ goto rollback;
+ }
+ pr_debug("Done building Merkle tree. Root hash is %s:%*phN\n",
+ params.hash_alg->name, params.digest_size, desc->root_hash);
+
+ /*
+ * Create the fsverity_info. Don't bother trying to save work by
+ * reusing the merkle_tree_params from above. Instead, just create the
+ * fsverity_info from the fsverity_descriptor as if it were just loaded
+ * from disk. This is simpler, and it serves as an extra check that the
+ * metadata we're writing is valid before actually enabling verity.
+ */
+ vi = fsverity_create_info(inode, desc, desc_size);
+ if (IS_ERR(vi)) {
+ err = PTR_ERR(vi);
+ goto rollback;
+ }
+
+ if (arg->sig_size)
+ pr_debug("Storing a %u-byte PKCS#7 signature alongside the file\n",
+ arg->sig_size);
+
+ /*
+ * Tell the filesystem to finish enabling verity on the file.
+ * Serialized with ->begin_enable_verity() by the inode lock.
+ */
+ inode_lock(inode);
+ err = vops->end_enable_verity(filp, desc, desc_size, params.tree_size);
+ inode_unlock(inode);
+ if (err) {
+ fsverity_err(inode, "%ps() failed with err %d",
+ vops->end_enable_verity, err);
+ fsverity_free_info(vi);
+ } else if (WARN_ON(!IS_VERITY(inode))) {
+ err = -EINVAL;
+ fsverity_free_info(vi);
+ } else {
+ /* Successfully enabled verity */
+
+ /*
+ * Readers can start using ->i_verity_info immediately, so it
+ * can't be rolled back once set. So don't set it until just
+ * after the filesystem has successfully enabled verity.
+ */
+ fsverity_set_info(inode, vi);
+ }
+out:
+ kfree(params.hashstate);
+ kfree(desc);
+ return err;
+
+rollback:
+ inode_lock(inode);
+ (void)vops->end_enable_verity(filp, NULL, 0, params.tree_size);
+ inode_unlock(inode);
+ goto out;
+}
+
+/**
+ * fsverity_ioctl_enable() - enable verity on a file
+ * @filp: file to enable verity on
+ * @uarg: user pointer to fsverity_enable_arg
+ *
+ * Enable fs-verity on a file. See the "FS_IOC_ENABLE_VERITY" section of
+ * Documentation/filesystems/fsverity.rst for the documentation.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+int fsverity_ioctl_enable(struct file *filp, const void __user *uarg)
+{
+ struct inode *inode = file_inode(filp);
+ struct fsverity_enable_arg arg;
+ int err;
+
+ if (copy_from_user(&arg, uarg, sizeof(arg)))
+ return -EFAULT;
+
+ if (arg.version != 1)
+ return -EINVAL;
+
+ if (arg.__reserved1 ||
+ memchr_inv(arg.__reserved2, 0, sizeof(arg.__reserved2)))
+ return -EINVAL;
+
+ if (arg.block_size != PAGE_SIZE)
+ return -EINVAL;
+
+ if (arg.salt_size > FIELD_SIZEOF(struct fsverity_descriptor, salt))
+ return -EMSGSIZE;
+
+ if (arg.sig_size > FS_VERITY_MAX_SIGNATURE_SIZE)
+ return -EMSGSIZE;
+
+ /*
+ * Require a regular file with write access. But the actual fd must
+ * still be readonly so that we can lock out all writers. This is
+ * needed to guarantee that no writable fds exist to the file once it
+ * has verity enabled, and to stabilize the data being hashed.
+ */
+
+ err = inode_permission(inode, MAY_WRITE);
+ if (err)
+ return err;
+
+ if (IS_APPEND(inode))
+ return -EPERM;
+
+ if (S_ISDIR(inode->i_mode))
+ return -EISDIR;
+
+ if (!S_ISREG(inode->i_mode))
+ return -EINVAL;
+
+ err = mnt_want_write_file(filp);
+ if (err) /* -EROFS */
+ return err;
+
+ err = deny_write_access(filp);
+ if (err) /* -ETXTBSY */
+ goto out_drop_write;
+
+ err = enable_verity(filp, &arg);
+ if (err)
+ goto out_allow_write_access;
+
+ /*
+ * Some pages of the file may have been evicted from pagecache after
+ * being used in the Merkle tree construction, then read into pagecache
+ * again by another process reading from the file concurrently. Since
+ * these pages didn't undergo verification against the file digest which
+ * fs-verity now claims to be enforcing, we have to wipe the pagecache
+ * to ensure that all future reads are verified.
+ */
+ filemap_write_and_wait(inode->i_mapping);
+ invalidate_inode_pages2(inode->i_mapping);
+
+ /*
+ * allow_write_access() is needed to pair with deny_write_access().
+ * Regardless, the filesystem won't allow writing to verity files.
+ */
+out_allow_write_access:
+ allow_write_access(filp);
+out_drop_write:
+ mnt_drop_write_file(filp);
+ return err;
+}
+EXPORT_SYMBOL_GPL(fsverity_ioctl_enable);
diff --git a/fs/verity/fsverity_private.h b/fs/verity/fsverity_private.h
new file mode 100644
index 0000000..96f7b33
--- /dev/null
+++ b/fs/verity/fsverity_private.h
@@ -0,0 +1,162 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * fs-verity: read-only file-based authenticity protection
+ *
+ * Copyright 2019 Google LLC
+ */
+
+#ifndef _FSVERITY_PRIVATE_H
+#define _FSVERITY_PRIVATE_H
+
+#ifdef CONFIG_FS_VERITY_DEBUG
+#define DEBUG
+#endif
+
+#define pr_fmt(fmt) "fs-verity: " fmt
+
+#include <crypto/sha.h>
+#include <linux/fsverity.h>
+#include <linux/mempool.h>
+
+struct ahash_request;
+
+/*
+ * Implementation limit: maximum depth of the Merkle tree. For now 8 is plenty;
+ * it's enough for over U64_MAX bytes of data using SHA-256 and 4K blocks.
+ */
+#define FS_VERITY_MAX_LEVELS 8
+
+/*
+ * Largest digest size among all hash algorithms supported by fs-verity.
+ * Currently assumed to be <= size of fsverity_descriptor::root_hash.
+ */
+#define FS_VERITY_MAX_DIGEST_SIZE SHA512_DIGEST_SIZE
+
+/* A hash algorithm supported by fs-verity */
+struct fsverity_hash_alg {
+ struct crypto_ahash *tfm; /* hash tfm, allocated on demand */
+ const char *name; /* crypto API name, e.g. sha256 */
+ unsigned int digest_size; /* digest size in bytes, e.g. 32 for SHA-256 */
+ unsigned int block_size; /* block size in bytes, e.g. 64 for SHA-256 */
+ mempool_t req_pool; /* mempool with a preallocated hash request */
+};
+
+/* Merkle tree parameters: hash algorithm, initial hash state, and topology */
+struct merkle_tree_params {
+ struct fsverity_hash_alg *hash_alg; /* the hash algorithm */
+ const u8 *hashstate; /* initial hash state or NULL */
+ unsigned int digest_size; /* same as hash_alg->digest_size */
+ unsigned int block_size; /* size of data and tree blocks */
+ unsigned int hashes_per_block; /* number of hashes per tree block */
+ unsigned int log_blocksize; /* log2(block_size) */
+ unsigned int log_arity; /* log2(hashes_per_block) */
+ unsigned int num_levels; /* number of levels in Merkle tree */
+ u64 tree_size; /* Merkle tree size in bytes */
+ unsigned long level0_blocks; /* number of blocks in tree level 0 */
+
+ /*
+ * Starting block index for each tree level, ordered from leaf level (0)
+ * to root level ('num_levels - 1')
+ */
+ u64 level_start[FS_VERITY_MAX_LEVELS];
+};
+
+/*
+ * fsverity_info - cached verity metadata for an inode
+ *
+ * When a verity file is first opened, an instance of this struct is allocated
+ * and stored in ->i_verity_info; it remains until the inode is evicted. It
+ * caches information about the Merkle tree that's needed to efficiently verify
+ * data read from the file. It also caches the file digest. The Merkle tree
+ * pages themselves are not cached here, but the filesystem may cache them.
+ */
+struct fsverity_info {
+ struct merkle_tree_params tree_params;
+ u8 root_hash[FS_VERITY_MAX_DIGEST_SIZE];
+ u8 file_digest[FS_VERITY_MAX_DIGEST_SIZE];
+ const struct inode *inode;
+};
+
+/* Arbitrary limit to bound the kmalloc() size. Can be changed. */
+#define FS_VERITY_MAX_DESCRIPTOR_SIZE 16384
+
+#define FS_VERITY_MAX_SIGNATURE_SIZE (FS_VERITY_MAX_DESCRIPTOR_SIZE - \
+ sizeof(struct fsverity_descriptor))
+
+/* hash_algs.c */
+
+extern struct fsverity_hash_alg fsverity_hash_algs[];
+
+struct fsverity_hash_alg *fsverity_get_hash_alg(const struct inode *inode,
+ unsigned int num);
+struct ahash_request *fsverity_alloc_hash_request(struct fsverity_hash_alg *alg,
+ gfp_t gfp_flags);
+void fsverity_free_hash_request(struct fsverity_hash_alg *alg,
+ struct ahash_request *req);
+const u8 *fsverity_prepare_hash_state(struct fsverity_hash_alg *alg,
+ const u8 *salt, size_t salt_size);
+int fsverity_hash_page(const struct merkle_tree_params *params,
+ const struct inode *inode,
+ struct ahash_request *req, struct page *page, u8 *out);
+int fsverity_hash_buffer(struct fsverity_hash_alg *alg,
+ const void *data, size_t size, u8 *out);
+void __init fsverity_check_hash_algs(void);
+
+/* init.c */
+
+void __printf(3, 4) __cold
+fsverity_msg(const struct inode *inode, const char *level,
+ const char *fmt, ...);
+
+#define fsverity_warn(inode, fmt, ...) \
+ fsverity_msg((inode), KERN_WARNING, fmt, ##__VA_ARGS__)
+#define fsverity_err(inode, fmt, ...) \
+ fsverity_msg((inode), KERN_ERR, fmt, ##__VA_ARGS__)
+
+/* open.c */
+
+int fsverity_init_merkle_tree_params(struct merkle_tree_params *params,
+ const struct inode *inode,
+ unsigned int hash_algorithm,
+ unsigned int log_blocksize,
+ const u8 *salt, size_t salt_size);
+
+struct fsverity_info *fsverity_create_info(const struct inode *inode,
+ void *desc, size_t desc_size);
+
+void fsverity_set_info(struct inode *inode, struct fsverity_info *vi);
+
+void fsverity_free_info(struct fsverity_info *vi);
+
+int __init fsverity_init_info_cache(void);
+void __init fsverity_exit_info_cache(void);
+
+/* signature.c */
+
+#ifdef CONFIG_FS_VERITY_BUILTIN_SIGNATURES
+int fsverity_verify_signature(const struct fsverity_info *vi,
+ const struct fsverity_descriptor *desc,
+ size_t desc_size);
+
+int __init fsverity_init_signature(void);
+#else /* !CONFIG_FS_VERITY_BUILTIN_SIGNATURES */
+static inline int
+fsverity_verify_signature(const struct fsverity_info *vi,
+ const struct fsverity_descriptor *desc,
+ size_t desc_size)
+{
+ return 0;
+}
+
+static inline int fsverity_init_signature(void)
+{
+ return 0;
+}
+#endif /* !CONFIG_FS_VERITY_BUILTIN_SIGNATURES */
+
+/* verify.c */
+
+int __init fsverity_init_workqueue(void);
+void __init fsverity_exit_workqueue(void);
+
+#endif /* _FSVERITY_PRIVATE_H */
diff --git a/fs/verity/hash_algs.c b/fs/verity/hash_algs.c
new file mode 100644
index 0000000..71d0fcc
--- /dev/null
+++ b/fs/verity/hash_algs.c
@@ -0,0 +1,328 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * fs-verity hash algorithms
+ *
+ * Copyright 2019 Google LLC
+ */
+
+#include "fsverity_private.h"
+
+#include <crypto/hash.h>
+#include <linux/scatterlist.h>
+
+/* The hash algorithms supported by fs-verity */
+struct fsverity_hash_alg fsverity_hash_algs[] = {
+ [FS_VERITY_HASH_ALG_SHA256] = {
+ .name = "sha256",
+ .digest_size = SHA256_DIGEST_SIZE,
+ .block_size = SHA256_BLOCK_SIZE,
+ },
+ [FS_VERITY_HASH_ALG_SHA512] = {
+ .name = "sha512",
+ .digest_size = SHA512_DIGEST_SIZE,
+ .block_size = SHA512_BLOCK_SIZE,
+ },
+};
+
+static DEFINE_MUTEX(fsverity_hash_alg_init_mutex);
+
+/**
+ * fsverity_get_hash_alg() - validate and prepare a hash algorithm
+ * @inode: optional inode for logging purposes
+ * @num: the hash algorithm number
+ *
+ * Get the struct fsverity_hash_alg for the given hash algorithm number, and
+ * ensure it has a hash transform ready to go. The hash transforms are
+ * allocated on-demand so that we don't waste resources unnecessarily, and
+ * because the crypto modules may be initialized later than fs/verity/.
+ *
+ * Return: pointer to the hash alg on success, else an ERR_PTR()
+ */
+struct fsverity_hash_alg *fsverity_get_hash_alg(const struct inode *inode,
+ unsigned int num)
+{
+ struct fsverity_hash_alg *alg;
+ struct crypto_ahash *tfm;
+ int err;
+
+ if (num >= ARRAY_SIZE(fsverity_hash_algs) ||
+ !fsverity_hash_algs[num].name) {
+ fsverity_warn(inode, "Unknown hash algorithm number: %u", num);
+ return ERR_PTR(-EINVAL);
+ }
+ alg = &fsverity_hash_algs[num];
+
+ /* pairs with smp_store_release() below */
+ if (likely(smp_load_acquire(&alg->tfm) != NULL))
+ return alg;
+
+ mutex_lock(&fsverity_hash_alg_init_mutex);
+
+ if (alg->tfm != NULL)
+ goto out_unlock;
+
+ /*
+ * Using the shash API would make things a bit simpler, but the ahash
+ * API is preferable as it allows the use of crypto accelerators.
+ */
+ tfm = crypto_alloc_ahash(alg->name, 0, 0);
+ if (IS_ERR(tfm)) {
+ if (PTR_ERR(tfm) == -ENOENT) {
+ fsverity_warn(inode,
+ "Missing crypto API support for hash algorithm \"%s\"",
+ alg->name);
+ alg = ERR_PTR(-ENOPKG);
+ goto out_unlock;
+ }
+ fsverity_err(inode,
+ "Error allocating hash algorithm \"%s\": %ld",
+ alg->name, PTR_ERR(tfm));
+ alg = ERR_CAST(tfm);
+ goto out_unlock;
+ }
+
+ err = -EINVAL;
+ if (WARN_ON(alg->digest_size != crypto_ahash_digestsize(tfm)))
+ goto err_free_tfm;
+ if (WARN_ON(alg->block_size != crypto_ahash_blocksize(tfm)))
+ goto err_free_tfm;
+
+ err = mempool_init_kmalloc_pool(&alg->req_pool, 1,
+ sizeof(struct ahash_request) +
+ crypto_ahash_reqsize(tfm));
+ if (err)
+ goto err_free_tfm;
+
+ pr_info("%s using implementation \"%s\"\n",
+ alg->name, crypto_ahash_driver_name(tfm));
+
+ /* pairs with smp_load_acquire() above */
+ smp_store_release(&alg->tfm, tfm);
+ goto out_unlock;
+
+err_free_tfm:
+ crypto_free_ahash(tfm);
+ alg = ERR_PTR(err);
+out_unlock:
+ mutex_unlock(&fsverity_hash_alg_init_mutex);
+ return alg;
+}
+
+/**
+ * fsverity_alloc_hash_request() - allocate a hash request object
+ * @alg: the hash algorithm for which to allocate the request
+ * @gfp_flags: memory allocation flags
+ *
+ * This is mempool-backed, so this never fails if __GFP_DIRECT_RECLAIM is set in
+ * @gfp_flags. However, in that case this might need to wait for all
+ * previously-allocated requests to be freed. So to avoid deadlocks, callers
+ * must never need multiple requests at a time to make forward progress.
+ *
+ * Return: the request object on success; NULL on failure (but see above)
+ */
+struct ahash_request *fsverity_alloc_hash_request(struct fsverity_hash_alg *alg,
+ gfp_t gfp_flags)
+{
+ struct ahash_request *req = mempool_alloc(&alg->req_pool, gfp_flags);
+
+ if (req)
+ ahash_request_set_tfm(req, alg->tfm);
+ return req;
+}
+
+/**
+ * fsverity_free_hash_request() - free a hash request object
+ * @alg: the hash algorithm
+ * @req: the hash request object to free
+ */
+void fsverity_free_hash_request(struct fsverity_hash_alg *alg,
+ struct ahash_request *req)
+{
+ if (req) {
+ ahash_request_zero(req);
+ mempool_free(req, &alg->req_pool);
+ }
+}
+
+/**
+ * fsverity_prepare_hash_state() - precompute the initial hash state
+ * @alg: hash algorithm
+ * @salt: a salt which is to be prepended to all data to be hashed
+ * @salt_size: salt size in bytes, possibly 0
+ *
+ * Return: NULL if the salt is empty, otherwise the kmalloc()'ed precomputed
+ * initial hash state on success or an ERR_PTR() on failure.
+ */
+const u8 *fsverity_prepare_hash_state(struct fsverity_hash_alg *alg,
+ const u8 *salt, size_t salt_size)
+{
+ u8 *hashstate = NULL;
+ struct ahash_request *req = NULL;
+ u8 *padded_salt = NULL;
+ size_t padded_salt_size;
+ struct scatterlist sg;
+ DECLARE_CRYPTO_WAIT(wait);
+ int err;
+
+ if (salt_size == 0)
+ return NULL;
+
+ hashstate = kmalloc(crypto_ahash_statesize(alg->tfm), GFP_KERNEL);
+ if (!hashstate)
+ return ERR_PTR(-ENOMEM);
+
+ /* This allocation never fails, since it's mempool-backed. */
+ req = fsverity_alloc_hash_request(alg, GFP_KERNEL);
+
+ /*
+ * Zero-pad the salt to the next multiple of the input size of the hash
+ * algorithm's compression function, e.g. 64 bytes for SHA-256 or 128
+ * bytes for SHA-512. This ensures that the hash algorithm won't have
+ * any bytes buffered internally after processing the salt, thus making
+ * salted hashing just as fast as unsalted hashing.
+ */
+ padded_salt_size = round_up(salt_size, alg->block_size);
+ padded_salt = kzalloc(padded_salt_size, GFP_KERNEL);
+ if (!padded_salt) {
+ err = -ENOMEM;
+ goto err_free;
+ }
+ memcpy(padded_salt, salt, salt_size);
+
+ sg_init_one(&sg, padded_salt, padded_salt_size);
+ ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_SLEEP |
+ CRYPTO_TFM_REQ_MAY_BACKLOG,
+ crypto_req_done, &wait);
+ ahash_request_set_crypt(req, &sg, NULL, padded_salt_size);
+
+ err = crypto_wait_req(crypto_ahash_init(req), &wait);
+ if (err)
+ goto err_free;
+
+ err = crypto_wait_req(crypto_ahash_update(req), &wait);
+ if (err)
+ goto err_free;
+
+ err = crypto_ahash_export(req, hashstate);
+ if (err)
+ goto err_free;
+out:
+ fsverity_free_hash_request(alg, req);
+ kfree(padded_salt);
+ return hashstate;
+
+err_free:
+ kfree(hashstate);
+ hashstate = ERR_PTR(err);
+ goto out;
+}
+
+/**
+ * fsverity_hash_page() - hash a single data or hash page
+ * @params: the Merkle tree's parameters
+ * @inode: inode for which the hashing is being done
+ * @req: preallocated hash request
+ * @page: the page to hash
+ * @out: output digest, size 'params->digest_size' bytes
+ *
+ * Hash a single data or hash block, assuming block_size == PAGE_SIZE.
+ * The hash is salted if a salt is specified in the Merkle tree parameters.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+int fsverity_hash_page(const struct merkle_tree_params *params,
+ const struct inode *inode,
+ struct ahash_request *req, struct page *page, u8 *out)
+{
+ struct scatterlist sg;
+ DECLARE_CRYPTO_WAIT(wait);
+ int err;
+
+ if (WARN_ON(params->block_size != PAGE_SIZE))
+ return -EINVAL;
+
+ sg_init_table(&sg, 1);
+ sg_set_page(&sg, page, PAGE_SIZE, 0);
+ ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_SLEEP |
+ CRYPTO_TFM_REQ_MAY_BACKLOG,
+ crypto_req_done, &wait);
+ ahash_request_set_crypt(req, &sg, out, PAGE_SIZE);
+
+ if (params->hashstate) {
+ err = crypto_ahash_import(req, params->hashstate);
+ if (err) {
+ fsverity_err(inode,
+ "Error %d importing hash state", err);
+ return err;
+ }
+ err = crypto_ahash_finup(req);
+ } else {
+ err = crypto_ahash_digest(req);
+ }
+
+ err = crypto_wait_req(err, &wait);
+ if (err)
+ fsverity_err(inode, "Error %d computing page hash", err);
+ return err;
+}
+
+/**
+ * fsverity_hash_buffer() - hash some data
+ * @alg: the hash algorithm to use
+ * @data: the data to hash
+ * @size: size of data to hash, in bytes
+ * @out: output digest, size 'alg->digest_size' bytes
+ *
+ * Hash some data which is located in physically contiguous memory (i.e. memory
+ * allocated by kmalloc(), not by vmalloc()). No salt is used.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+int fsverity_hash_buffer(struct fsverity_hash_alg *alg,
+ const void *data, size_t size, u8 *out)
+{
+ struct ahash_request *req;
+ struct scatterlist sg;
+ DECLARE_CRYPTO_WAIT(wait);
+ int err;
+
+ /* This allocation never fails, since it's mempool-backed. */
+ req = fsverity_alloc_hash_request(alg, GFP_KERNEL);
+
+ sg_init_one(&sg, data, size);
+ ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_SLEEP |
+ CRYPTO_TFM_REQ_MAY_BACKLOG,
+ crypto_req_done, &wait);
+ ahash_request_set_crypt(req, &sg, out, size);
+
+ err = crypto_wait_req(crypto_ahash_digest(req), &wait);
+
+ fsverity_free_hash_request(alg, req);
+ return err;
+}
+
+void __init fsverity_check_hash_algs(void)
+{
+ size_t i;
+
+ /*
+ * Sanity check the hash algorithms (could be a build-time check, but
+ * they're in an array)
+ */
+ for (i = 0; i < ARRAY_SIZE(fsverity_hash_algs); i++) {
+ const struct fsverity_hash_alg *alg = &fsverity_hash_algs[i];
+
+ if (!alg->name)
+ continue;
+
+ BUG_ON(alg->digest_size > FS_VERITY_MAX_DIGEST_SIZE);
+
+ /*
+ * For efficiency, the implementation currently assumes the
+ * digest and block sizes are powers of 2. This limitation can
+ * be lifted if the code is updated to handle other values.
+ */
+ BUG_ON(!is_power_of_2(alg->digest_size));
+ BUG_ON(!is_power_of_2(alg->block_size));
+ }
+}
diff --git a/fs/verity/init.c b/fs/verity/init.c
new file mode 100644
index 0000000..c98b701
--- /dev/null
+++ b/fs/verity/init.c
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * fs-verity module initialization and logging
+ *
+ * Copyright 2019 Google LLC
+ */
+
+#include "fsverity_private.h"
+
+#include <linux/ratelimit.h>
+
+void fsverity_msg(const struct inode *inode, const char *level,
+ const char *fmt, ...)
+{
+ static DEFINE_RATELIMIT_STATE(rs, DEFAULT_RATELIMIT_INTERVAL,
+ DEFAULT_RATELIMIT_BURST);
+ struct va_format vaf;
+ va_list args;
+
+ if (!__ratelimit(&rs))
+ return;
+
+ va_start(args, fmt);
+ vaf.fmt = fmt;
+ vaf.va = &args;
+ if (inode)
+ printk("%sfs-verity (%s, inode %lu): %pV\n",
+ level, inode->i_sb->s_id, inode->i_ino, &vaf);
+ else
+ printk("%sfs-verity: %pV\n", level, &vaf);
+ va_end(args);
+}
+
+static int __init fsverity_init(void)
+{
+ int err;
+
+ fsverity_check_hash_algs();
+
+ err = fsverity_init_info_cache();
+ if (err)
+ return err;
+
+ err = fsverity_init_workqueue();
+ if (err)
+ goto err_exit_info_cache;
+
+ err = fsverity_init_signature();
+ if (err)
+ goto err_exit_workqueue;
+
+ pr_debug("Initialized fs-verity\n");
+ return 0;
+
+err_exit_workqueue:
+ fsverity_exit_workqueue();
+err_exit_info_cache:
+ fsverity_exit_info_cache();
+ return err;
+}
+late_initcall(fsverity_init)
diff --git a/fs/verity/measure.c b/fs/verity/measure.c
new file mode 100644
index 0000000..f0d7b30
--- /dev/null
+++ b/fs/verity/measure.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Ioctl to get a verity file's digest
+ *
+ * Copyright 2019 Google LLC
+ */
+
+#include "fsverity_private.h"
+
+#include <linux/uaccess.h>
+
+/**
+ * fsverity_ioctl_measure() - get a verity file's digest
+ * @filp: file to get digest of
+ * @_uarg: user pointer to fsverity_digest
+ *
+ * Retrieve the file digest that the kernel is enforcing for reads from a verity
+ * file. See the "FS_IOC_MEASURE_VERITY" section of
+ * Documentation/filesystems/fsverity.rst for the documentation.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+int fsverity_ioctl_measure(struct file *filp, void __user *_uarg)
+{
+ const struct inode *inode = file_inode(filp);
+ struct fsverity_digest __user *uarg = _uarg;
+ const struct fsverity_info *vi;
+ const struct fsverity_hash_alg *hash_alg;
+ struct fsverity_digest arg;
+
+ vi = fsverity_get_info(inode);
+ if (!vi)
+ return -ENODATA; /* not a verity file */
+ hash_alg = vi->tree_params.hash_alg;
+
+ /*
+ * The user specifies the digest_size their buffer has space for; we can
+ * return the digest if it fits in the available space. We write back
+ * the actual size, which may be shorter than the user-specified size.
+ */
+
+ if (get_user(arg.digest_size, &uarg->digest_size))
+ return -EFAULT;
+ if (arg.digest_size < hash_alg->digest_size)
+ return -EOVERFLOW;
+
+ memset(&arg, 0, sizeof(arg));
+ arg.digest_algorithm = hash_alg - fsverity_hash_algs;
+ arg.digest_size = hash_alg->digest_size;
+
+ if (copy_to_user(uarg, &arg, sizeof(arg)))
+ return -EFAULT;
+
+ if (copy_to_user(uarg->digest, vi->file_digest, hash_alg->digest_size))
+ return -EFAULT;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(fsverity_ioctl_measure);
diff --git a/fs/verity/open.c b/fs/verity/open.c
new file mode 100644
index 0000000..ce73fed
--- /dev/null
+++ b/fs/verity/open.c
@@ -0,0 +1,358 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Opening fs-verity files
+ *
+ * Copyright 2019 Google LLC
+ */
+
+#include "fsverity_private.h"
+
+#include <linux/slab.h>
+
+static struct kmem_cache *fsverity_info_cachep;
+
+/**
+ * fsverity_init_merkle_tree_params() - initialize Merkle tree parameters
+ * @params: the parameters struct to initialize
+ * @inode: the inode for which the Merkle tree is being built
+ * @hash_algorithm: number of hash algorithm to use
+ * @log_blocksize: log base 2 of block size to use
+ * @salt: pointer to salt (optional)
+ * @salt_size: size of salt, possibly 0
+ *
+ * Validate the hash algorithm and block size, then compute the tree topology
+ * (num levels, num blocks in each level, etc.) and initialize @params.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+int fsverity_init_merkle_tree_params(struct merkle_tree_params *params,
+ const struct inode *inode,
+ unsigned int hash_algorithm,
+ unsigned int log_blocksize,
+ const u8 *salt, size_t salt_size)
+{
+ struct fsverity_hash_alg *hash_alg;
+ int err;
+ u64 blocks;
+ u64 offset;
+ int level;
+
+ memset(params, 0, sizeof(*params));
+
+ hash_alg = fsverity_get_hash_alg(inode, hash_algorithm);
+ if (IS_ERR(hash_alg))
+ return PTR_ERR(hash_alg);
+ params->hash_alg = hash_alg;
+ params->digest_size = hash_alg->digest_size;
+
+ params->hashstate = fsverity_prepare_hash_state(hash_alg, salt,
+ salt_size);
+ if (IS_ERR(params->hashstate)) {
+ err = PTR_ERR(params->hashstate);
+ params->hashstate = NULL;
+ fsverity_err(inode, "Error %d preparing hash state", err);
+ goto out_err;
+ }
+
+ if (log_blocksize != PAGE_SHIFT) {
+ fsverity_warn(inode, "Unsupported log_blocksize: %u",
+ log_blocksize);
+ err = -EINVAL;
+ goto out_err;
+ }
+ params->log_blocksize = log_blocksize;
+ params->block_size = 1 << log_blocksize;
+
+ if (WARN_ON(!is_power_of_2(params->digest_size))) {
+ err = -EINVAL;
+ goto out_err;
+ }
+ if (params->block_size < 2 * params->digest_size) {
+ fsverity_warn(inode,
+ "Merkle tree block size (%u) too small for hash algorithm \"%s\"",
+ params->block_size, hash_alg->name);
+ err = -EINVAL;
+ goto out_err;
+ }
+ params->log_arity = params->log_blocksize - ilog2(params->digest_size);
+ params->hashes_per_block = 1 << params->log_arity;
+
+ pr_debug("Merkle tree uses %s with %u-byte blocks (%u hashes/block), salt=%*phN\n",
+ hash_alg->name, params->block_size, params->hashes_per_block,
+ (int)salt_size, salt);
+
+ /*
+ * Compute the number of levels in the Merkle tree and create a map from
+ * level to the starting block of that level. Level 'num_levels - 1' is
+ * the root and is stored first. Level 0 is the level directly "above"
+ * the data blocks and is stored last.
+ */
+
+ /* Compute number of levels and the number of blocks in each level */
+ blocks = (inode->i_size + params->block_size - 1) >> log_blocksize;
+ pr_debug("Data is %lld bytes (%llu blocks)\n", inode->i_size, blocks);
+ while (blocks > 1) {
+ if (params->num_levels >= FS_VERITY_MAX_LEVELS) {
+ fsverity_err(inode, "Too many levels in Merkle tree");
+ err = -EINVAL;
+ goto out_err;
+ }
+ blocks = (blocks + params->hashes_per_block - 1) >>
+ params->log_arity;
+ /* temporarily using level_start[] to store blocks in level */
+ params->level_start[params->num_levels++] = blocks;
+ }
+ params->level0_blocks = params->level_start[0];
+
+ /* Compute the starting block of each level */
+ offset = 0;
+ for (level = (int)params->num_levels - 1; level >= 0; level--) {
+ blocks = params->level_start[level];
+ params->level_start[level] = offset;
+ pr_debug("Level %d is %llu blocks starting at index %llu\n",
+ level, blocks, offset);
+ offset += blocks;
+ }
+
+ params->tree_size = offset << log_blocksize;
+ return 0;
+
+out_err:
+ kfree(params->hashstate);
+ memset(params, 0, sizeof(*params));
+ return err;
+}
+
+/*
+ * Compute the file digest by hashing the fsverity_descriptor excluding the
+ * signature and with the sig_size field set to 0.
+ */
+static int compute_file_digest(struct fsverity_hash_alg *hash_alg,
+ struct fsverity_descriptor *desc,
+ u8 *file_digest)
+{
+ __le32 sig_size = desc->sig_size;
+ int err;
+
+ desc->sig_size = 0;
+ err = fsverity_hash_buffer(hash_alg, desc, sizeof(*desc), file_digest);
+ desc->sig_size = sig_size;
+
+ return err;
+}
+
+/*
+ * Validate the given fsverity_descriptor and create a new fsverity_info from
+ * it. The signature (if present) is also checked.
+ */
+struct fsverity_info *fsverity_create_info(const struct inode *inode,
+ void *_desc, size_t desc_size)
+{
+ struct fsverity_descriptor *desc = _desc;
+ struct fsverity_info *vi;
+ int err;
+
+ if (desc_size < sizeof(*desc)) {
+ fsverity_err(inode, "Unrecognized descriptor size: %zu bytes",
+ desc_size);
+ return ERR_PTR(-EINVAL);
+ }
+
+ if (desc->version != 1) {
+ fsverity_err(inode, "Unrecognized descriptor version: %u",
+ desc->version);
+ return ERR_PTR(-EINVAL);
+ }
+
+ if (memchr_inv(desc->__reserved, 0, sizeof(desc->__reserved))) {
+ fsverity_err(inode, "Reserved bits set in descriptor");
+ return ERR_PTR(-EINVAL);
+ }
+
+ if (desc->salt_size > sizeof(desc->salt)) {
+ fsverity_err(inode, "Invalid salt_size: %u", desc->salt_size);
+ return ERR_PTR(-EINVAL);
+ }
+
+ if (le64_to_cpu(desc->data_size) != inode->i_size) {
+ fsverity_err(inode,
+ "Wrong data_size: %llu (desc) != %lld (inode)",
+ le64_to_cpu(desc->data_size), inode->i_size);
+ return ERR_PTR(-EINVAL);
+ }
+
+ vi = kmem_cache_zalloc(fsverity_info_cachep, GFP_KERNEL);
+ if (!vi)
+ return ERR_PTR(-ENOMEM);
+ vi->inode = inode;
+
+ err = fsverity_init_merkle_tree_params(&vi->tree_params, inode,
+ desc->hash_algorithm,
+ desc->log_blocksize,
+ desc->salt, desc->salt_size);
+ if (err) {
+ fsverity_err(inode,
+ "Error %d initializing Merkle tree parameters",
+ err);
+ goto out;
+ }
+
+ memcpy(vi->root_hash, desc->root_hash, vi->tree_params.digest_size);
+
+ err = compute_file_digest(vi->tree_params.hash_alg, desc,
+ vi->file_digest);
+ if (err) {
+ fsverity_err(inode, "Error %d computing file digest", err);
+ goto out;
+ }
+ pr_debug("Computed file digest: %s:%*phN\n",
+ vi->tree_params.hash_alg->name,
+ vi->tree_params.digest_size, vi->file_digest);
+
+ err = fsverity_verify_signature(vi, desc, desc_size);
+out:
+ if (err) {
+ fsverity_free_info(vi);
+ vi = ERR_PTR(err);
+ }
+ return vi;
+}
+
+void fsverity_set_info(struct inode *inode, struct fsverity_info *vi)
+{
+ /*
+ * Multiple processes may race to set ->i_verity_info, so use cmpxchg.
+ * This pairs with the READ_ONCE() in fsverity_get_info().
+ */
+ if (cmpxchg(&inode->i_verity_info, NULL, vi) != NULL)
+ fsverity_free_info(vi);
+}
+
+void fsverity_free_info(struct fsverity_info *vi)
+{
+ if (!vi)
+ return;
+ kfree(vi->tree_params.hashstate);
+ kmem_cache_free(fsverity_info_cachep, vi);
+}
+
+/* Ensure the inode has an ->i_verity_info */
+static int ensure_verity_info(struct inode *inode)
+{
+ struct fsverity_info *vi = fsverity_get_info(inode);
+ struct fsverity_descriptor *desc;
+ int res;
+
+ if (vi)
+ return 0;
+
+ res = inode->i_sb->s_vop->get_verity_descriptor(inode, NULL, 0);
+ if (res < 0) {
+ fsverity_err(inode,
+ "Error %d getting verity descriptor size", res);
+ return res;
+ }
+ if (res > FS_VERITY_MAX_DESCRIPTOR_SIZE) {
+ fsverity_err(inode, "Verity descriptor is too large (%d bytes)",
+ res);
+ return -EMSGSIZE;
+ }
+ desc = kmalloc(res, GFP_KERNEL);
+ if (!desc)
+ return -ENOMEM;
+ res = inode->i_sb->s_vop->get_verity_descriptor(inode, desc, res);
+ if (res < 0) {
+ fsverity_err(inode, "Error %d reading verity descriptor", res);
+ goto out_free_desc;
+ }
+
+ vi = fsverity_create_info(inode, desc, res);
+ if (IS_ERR(vi)) {
+ res = PTR_ERR(vi);
+ goto out_free_desc;
+ }
+
+ fsverity_set_info(inode, vi);
+ res = 0;
+out_free_desc:
+ kfree(desc);
+ return res;
+}
+
+/**
+ * fsverity_file_open() - prepare to open a verity file
+ * @inode: the inode being opened
+ * @filp: the struct file being set up
+ *
+ * When opening a verity file, deny the open if it is for writing. Otherwise,
+ * set up the inode's ->i_verity_info if not already done.
+ *
+ * When combined with fscrypt, this must be called after fscrypt_file_open().
+ * Otherwise, we won't have the key set up to decrypt the verity metadata.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+int fsverity_file_open(struct inode *inode, struct file *filp)
+{
+ if (!IS_VERITY(inode))
+ return 0;
+
+ if (filp->f_mode & FMODE_WRITE) {
+ pr_debug("Denying opening verity file (ino %lu) for write\n",
+ inode->i_ino);
+ return -EPERM;
+ }
+
+ return ensure_verity_info(inode);
+}
+EXPORT_SYMBOL_GPL(fsverity_file_open);
+
+/**
+ * fsverity_prepare_setattr() - prepare to change a verity inode's attributes
+ * @dentry: dentry through which the inode is being changed
+ * @attr: attributes to change
+ *
+ * Verity files are immutable, so deny truncates. This isn't covered by the
+ * open-time check because sys_truncate() takes a path, not a file descriptor.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+int fsverity_prepare_setattr(struct dentry *dentry, struct iattr *attr)
+{
+ if (IS_VERITY(d_inode(dentry)) && (attr->ia_valid & ATTR_SIZE)) {
+ pr_debug("Denying truncate of verity file (ino %lu)\n",
+ d_inode(dentry)->i_ino);
+ return -EPERM;
+ }
+ return 0;
+}
+EXPORT_SYMBOL_GPL(fsverity_prepare_setattr);
+
+/**
+ * fsverity_cleanup_inode() - free the inode's verity info, if present
+ * @inode: an inode being evicted
+ *
+ * Filesystems must call this on inode eviction to free ->i_verity_info.
+ */
+void fsverity_cleanup_inode(struct inode *inode)
+{
+ fsverity_free_info(inode->i_verity_info);
+ inode->i_verity_info = NULL;
+}
+EXPORT_SYMBOL_GPL(fsverity_cleanup_inode);
+
+int __init fsverity_init_info_cache(void)
+{
+ fsverity_info_cachep = KMEM_CACHE_USERCOPY(fsverity_info,
+ SLAB_RECLAIM_ACCOUNT,
+ file_digest);
+ if (!fsverity_info_cachep)
+ return -ENOMEM;
+ return 0;
+}
+
+void __init fsverity_exit_info_cache(void)
+{
+ kmem_cache_destroy(fsverity_info_cachep);
+ fsverity_info_cachep = NULL;
+}
diff --git a/fs/verity/signature.c b/fs/verity/signature.c
new file mode 100644
index 0000000..6572784
--- /dev/null
+++ b/fs/verity/signature.c
@@ -0,0 +1,195 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Verification of builtin signatures
+ *
+ * Copyright 2019 Google LLC
+ */
+
+#include "fsverity_private.h"
+
+#include <linux/cred.h>
+#include <linux/key.h>
+#include <linux/slab.h>
+#include <linux/verification.h>
+
+/*
+ * /proc/sys/fs/verity/require_signatures
+ * If 1, all verity files must have a valid builtin signature.
+ */
+static int fsverity_require_signatures;
+
+/*
+ * Keyring that contains the trusted X.509 certificates.
+ *
+ * Only root (kuid=0) can modify this. Also, root may use
+ * keyctl_restrict_keyring() to prevent any more additions.
+ */
+static struct key *fsverity_keyring;
+
+/**
+ * __fsverity_verify_signature() - check a verity file's signature
+ * @inode: the file's inode
+ * @signature: the file's signature
+ * @sig_size: size of @signature. Can be 0 if there is no signature
+ * @file_digest: the file's digest
+ * @digest_algorithm: the digest algorithm used
+ *
+ * Takes the file's digest and optional signature and verifies the signature
+ * against the digest and the fs-verity keyring if appropriate
+ *
+ * Return: 0 on success (signature valid or not required); -errno on failure
+ */
+int __fsverity_verify_signature(const struct inode *inode, const u8 *signature,
+ u32 sig_size, const u8 *file_digest,
+ unsigned int digest_algorithm)
+{
+ struct fsverity_formatted_digest *d;
+ struct fsverity_hash_alg *hash_alg = fsverity_get_hash_alg(inode,
+ digest_algorithm);
+ int err;
+
+ if (IS_ERR(hash_alg))
+ return PTR_ERR(hash_alg);
+
+ if (sig_size == 0) {
+ if (fsverity_require_signatures) {
+ fsverity_err(inode,
+ "require_signatures=1, rejecting unsigned file!");
+ return -EPERM;
+ }
+ return 0;
+ }
+
+ d = kzalloc(sizeof(*d) + hash_alg->digest_size, GFP_KERNEL);
+ if (!d)
+ return -ENOMEM;
+ memcpy(d->magic, "FSVerity", 8);
+ d->digest_algorithm = cpu_to_le16(hash_alg - fsverity_hash_algs);
+ d->digest_size = cpu_to_le16(hash_alg->digest_size);
+ memcpy(d->digest, file_digest, hash_alg->digest_size);
+
+ err = verify_pkcs7_signature(d, sizeof(*d) + hash_alg->digest_size,
+ signature, sig_size,
+ fsverity_keyring,
+ VERIFYING_UNSPECIFIED_SIGNATURE,
+ NULL, NULL);
+ kfree(d);
+
+ if (err) {
+ if (err == -ENOKEY)
+ fsverity_err(inode,
+ "File's signing cert isn't in the fs-verity keyring");
+ else if (err == -EKEYREJECTED)
+ fsverity_err(inode, "Incorrect file signature");
+ else if (err == -EBADMSG)
+ fsverity_err(inode, "Malformed file signature");
+ else
+ fsverity_err(inode, "Error %d verifying file signature",
+ err);
+ return err;
+ }
+
+ pr_debug("Valid signature for file digest %s:%*phN\n",
+ hash_alg->name, hash_alg->digest_size, file_digest);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(__fsverity_verify_signature);
+
+/**
+ * fsverity_verify_signature() - check a verity file's signature
+ * @vi: the file's fsverity_info
+ * @desc: the file's fsverity_descriptor
+ * @desc_size: size of @desc
+ *
+ * If the file's fs-verity descriptor includes a signature of the file digest,
+ * verify it against the certificates in the fs-verity keyring.
+ *
+ * Return: 0 on success (signature valid or not required); -errno on failure
+ */
+int fsverity_verify_signature(const struct fsverity_info *vi,
+ const struct fsverity_descriptor *desc,
+ size_t desc_size)
+{
+ const struct inode *inode = vi->inode;
+ const struct fsverity_hash_alg *hash_alg = vi->tree_params.hash_alg;
+ const u32 sig_size = le32_to_cpu(desc->sig_size);
+
+ if (sig_size > desc_size - sizeof(*desc)) {
+ fsverity_err(inode, "Signature overflows verity descriptor");
+ return -EBADMSG;
+ }
+
+ return __fsverity_verify_signature(inode, desc->signature, sig_size,
+ vi->file_digest, hash_alg - fsverity_hash_algs);
+}
+
+#ifdef CONFIG_SYSCTL
+static struct ctl_table_header *fsverity_sysctl_header;
+
+static const struct ctl_path fsverity_sysctl_path[] = {
+ { .procname = "fs", },
+ { .procname = "verity", },
+ { }
+};
+
+/* shared constants to be used in various sysctls */
+static int sysctl_vals[] = { 0, 1, INT_MAX };
+
+#define SYSCTL_ZERO ((void *)&sysctl_vals[0])
+#define SYSCTL_ONE ((void *)&sysctl_vals[1])
+#define SYSCTL_INT_MAX ((void *)&sysctl_vals[2])
+
+static struct ctl_table fsverity_sysctl_table[] = {
+ {
+ .procname = "require_signatures",
+ .data = &fsverity_require_signatures,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = SYSCTL_ZERO,
+ .extra2 = SYSCTL_ONE,
+ },
+ { }
+};
+
+static int __init fsverity_sysctl_init(void)
+{
+ fsverity_sysctl_header = register_sysctl_paths(fsverity_sysctl_path,
+ fsverity_sysctl_table);
+ if (!fsverity_sysctl_header) {
+ pr_err("sysctl registration failed!\n");
+ return -ENOMEM;
+ }
+ return 0;
+}
+#else /* !CONFIG_SYSCTL */
+static inline int __init fsverity_sysctl_init(void)
+{
+ return 0;
+}
+#endif /* !CONFIG_SYSCTL */
+
+int __init fsverity_init_signature(void)
+{
+ struct key *ring;
+ int err;
+
+ ring = keyring_alloc(".fs-verity", KUIDT_INIT(0), KGIDT_INIT(0),
+ current_cred(), KEY_POS_SEARCH |
+ KEY_USR_VIEW | KEY_USR_READ | KEY_USR_WRITE |
+ KEY_USR_SEARCH | KEY_USR_SETATTR,
+ KEY_ALLOC_NOT_IN_QUOTA, NULL, NULL);
+ if (IS_ERR(ring))
+ return PTR_ERR(ring);
+
+ err = fsverity_sysctl_init();
+ if (err)
+ goto err_put_ring;
+
+ fsverity_keyring = ring;
+ return 0;
+
+err_put_ring:
+ key_put(ring);
+ return err;
+}
diff --git a/fs/verity/verify.c b/fs/verity/verify.c
new file mode 100644
index 0000000..817ce4f
--- /dev/null
+++ b/fs/verity/verify.c
@@ -0,0 +1,301 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Data verification functions, i.e. hooks for ->readpages()
+ *
+ * Copyright 2019 Google LLC
+ */
+
+#include "fsverity_private.h"
+
+#include <crypto/hash.h>
+#include <linux/bio.h>
+#include <linux/ratelimit.h>
+
+static struct workqueue_struct *fsverity_read_workqueue;
+
+/**
+ * hash_at_level() - compute the location of the block's hash at the given level
+ *
+ * @params: (in) the Merkle tree parameters
+ * @dindex: (in) the index of the data block being verified
+ * @level: (in) the level of hash we want (0 is leaf level)
+ * @hindex: (out) the index of the hash block containing the wanted hash
+ * @hoffset: (out) the byte offset to the wanted hash within the hash block
+ */
+static void hash_at_level(const struct merkle_tree_params *params,
+ pgoff_t dindex, unsigned int level, pgoff_t *hindex,
+ unsigned int *hoffset)
+{
+ pgoff_t position;
+
+ /* Offset of the hash within the level's region, in hashes */
+ position = dindex >> (level * params->log_arity);
+
+ /* Index of the hash block in the tree overall */
+ *hindex = params->level_start[level] + (position >> params->log_arity);
+
+ /* Offset of the wanted hash (in bytes) within the hash block */
+ *hoffset = (position & ((1 << params->log_arity) - 1)) <<
+ (params->log_blocksize - params->log_arity);
+}
+
+/* Extract a hash from a hash page */
+static void extract_hash(struct page *hpage, unsigned int hoffset,
+ unsigned int hsize, u8 *out)
+{
+ void *virt = kmap_atomic(hpage);
+
+ memcpy(out, virt + hoffset, hsize);
+ kunmap_atomic(virt);
+}
+
+static inline int cmp_hashes(const struct fsverity_info *vi,
+ const u8 *want_hash, const u8 *real_hash,
+ pgoff_t index, int level)
+{
+ const unsigned int hsize = vi->tree_params.digest_size;
+
+ if (memcmp(want_hash, real_hash, hsize) == 0)
+ return 0;
+
+ fsverity_err(vi->inode,
+ "FILE CORRUPTED! index=%lu, level=%d, want_hash=%s:%*phN, real_hash=%s:%*phN",
+ index, level,
+ vi->tree_params.hash_alg->name, hsize, want_hash,
+ vi->tree_params.hash_alg->name, hsize, real_hash);
+ return -EBADMSG;
+}
+
+/*
+ * Verify a single data page against the file's Merkle tree.
+ *
+ * In principle, we need to verify the entire path to the root node. However,
+ * for efficiency the filesystem may cache the hash pages. Therefore we need
+ * only ascend the tree until an already-verified page is seen, as indicated by
+ * the PageChecked bit being set; then verify the path to that page.
+ *
+ * This code currently only supports the case where the verity block size is
+ * equal to PAGE_SIZE. Doing otherwise would be possible but tricky, since we
+ * wouldn't be able to use the PageChecked bit.
+ *
+ * Note that multiple processes may race to verify a hash page and mark it
+ * Checked, but it doesn't matter; the result will be the same either way.
+ *
+ * Return: true if the page is valid, else false.
+ */
+static bool verify_page(struct inode *inode, const struct fsverity_info *vi,
+ struct ahash_request *req, struct page *data_page,
+ unsigned long level0_ra_pages)
+{
+ const struct merkle_tree_params *params = &vi->tree_params;
+ const unsigned int hsize = params->digest_size;
+ const pgoff_t index = data_page->index;
+ int level;
+ u8 _want_hash[FS_VERITY_MAX_DIGEST_SIZE];
+ const u8 *want_hash;
+ u8 real_hash[FS_VERITY_MAX_DIGEST_SIZE];
+ struct page *hpages[FS_VERITY_MAX_LEVELS];
+ unsigned int hoffsets[FS_VERITY_MAX_LEVELS];
+ int err;
+
+ if (WARN_ON_ONCE(!PageLocked(data_page) || PageUptodate(data_page)))
+ return false;
+
+ pr_debug_ratelimited("Verifying data page %lu...\n", index);
+
+ /*
+ * Starting at the leaf level, ascend the tree saving hash pages along
+ * the way until we find a verified hash page, indicated by PageChecked;
+ * or until we reach the root.
+ */
+ for (level = 0; level < params->num_levels; level++) {
+ pgoff_t hindex;
+ unsigned int hoffset;
+ struct page *hpage;
+
+ hash_at_level(params, index, level, &hindex, &hoffset);
+
+ pr_debug_ratelimited("Level %d: hindex=%lu, hoffset=%u\n",
+ level, hindex, hoffset);
+
+ hpage = inode->i_sb->s_vop->read_merkle_tree_page(inode, hindex,
+ level == 0 ? level0_ra_pages : 0);
+ if (IS_ERR(hpage)) {
+ err = PTR_ERR(hpage);
+ fsverity_err(inode,
+ "Error %d reading Merkle tree page %lu",
+ err, hindex);
+ goto out;
+ }
+
+ if (PageChecked(hpage)) {
+ extract_hash(hpage, hoffset, hsize, _want_hash);
+ want_hash = _want_hash;
+ put_page(hpage);
+ pr_debug_ratelimited("Hash page already checked, want %s:%*phN\n",
+ params->hash_alg->name,
+ hsize, want_hash);
+ goto descend;
+ }
+ pr_debug_ratelimited("Hash page not yet checked\n");
+ hpages[level] = hpage;
+ hoffsets[level] = hoffset;
+ }
+
+ want_hash = vi->root_hash;
+ pr_debug("Want root hash: %s:%*phN\n",
+ params->hash_alg->name, hsize, want_hash);
+descend:
+ /* Descend the tree verifying hash pages */
+ for (; level > 0; level--) {
+ struct page *hpage = hpages[level - 1];
+ unsigned int hoffset = hoffsets[level - 1];
+
+ err = fsverity_hash_page(params, inode, req, hpage, real_hash);
+ if (err)
+ goto out;
+ err = cmp_hashes(vi, want_hash, real_hash, index, level - 1);
+ if (err)
+ goto out;
+ SetPageChecked(hpage);
+ extract_hash(hpage, hoffset, hsize, _want_hash);
+ want_hash = _want_hash;
+ put_page(hpage);
+ pr_debug("Verified hash page at level %d, now want %s:%*phN\n",
+ level - 1, params->hash_alg->name, hsize, want_hash);
+ }
+
+ /* Finally, verify the data page */
+ err = fsverity_hash_page(params, inode, req, data_page, real_hash);
+ if (err)
+ goto out;
+ err = cmp_hashes(vi, want_hash, real_hash, index, -1);
+out:
+ for (; level > 0; level--)
+ put_page(hpages[level - 1]);
+
+ return err == 0;
+}
+
+/**
+ * fsverity_verify_page() - verify a data page
+ * @page: the page to verity
+ *
+ * Verify a page that has just been read from a verity file. The page must be a
+ * pagecache page that is still locked and not yet uptodate.
+ *
+ * Return: true if the page is valid, else false.
+ */
+bool fsverity_verify_page(struct page *page)
+{
+ struct inode *inode = page->mapping->host;
+ const struct fsverity_info *vi = inode->i_verity_info;
+ struct ahash_request *req;
+ bool valid;
+
+ /* This allocation never fails, since it's mempool-backed. */
+ req = fsverity_alloc_hash_request(vi->tree_params.hash_alg, GFP_NOFS);
+
+ valid = verify_page(inode, vi, req, page, 0);
+
+ fsverity_free_hash_request(vi->tree_params.hash_alg, req);
+
+ return valid;
+}
+EXPORT_SYMBOL_GPL(fsverity_verify_page);
+
+#ifdef CONFIG_BLOCK
+/**
+ * fsverity_verify_bio() - verify a 'read' bio that has just completed
+ * @bio: the bio to verify
+ *
+ * Verify a set of pages that have just been read from a verity file. The pages
+ * must be pagecache pages that are still locked and not yet uptodate. Pages
+ * that fail verification are set to the Error state. Verification is skipped
+ * for pages already in the Error state, e.g. due to fscrypt decryption failure.
+ *
+ * This is a helper function for use by the ->readpages() method of filesystems
+ * that issue bios to read data directly into the page cache. Filesystems that
+ * populate the page cache without issuing bios (e.g. non block-based
+ * filesystems) must instead call fsverity_verify_page() directly on each page.
+ * All filesystems must also call fsverity_verify_page() on holes.
+ */
+void fsverity_verify_bio(struct bio *bio)
+{
+ struct inode *inode = bio_first_page_all(bio)->mapping->host;
+ const struct fsverity_info *vi = inode->i_verity_info;
+ const struct merkle_tree_params *params = &vi->tree_params;
+ struct ahash_request *req;
+ struct bio_vec *bv;
+ int i;
+ unsigned long max_ra_pages = 0;
+
+ /* This allocation never fails, since it's mempool-backed. */
+ req = fsverity_alloc_hash_request(params->hash_alg, GFP_NOFS);
+
+ if (bio->bi_opf & REQ_RAHEAD) {
+ /*
+ * If this bio is for data readahead, then we also do readahead
+ * of the first (largest) level of the Merkle tree. Namely,
+ * when a Merkle tree page is read, we also try to piggy-back on
+ * some additional pages -- up to 1/4 the number of data pages.
+ *
+ * This improves sequential read performance, as it greatly
+ * reduces the number of I/O requests made to the Merkle tree.
+ */
+ bio_for_each_segment_all(bv, bio, i)
+ max_ra_pages++;
+ max_ra_pages /= 4;
+ }
+
+ bio_for_each_segment_all(bv, bio, i) {
+ struct page *page = bv->bv_page;
+ unsigned long level0_index = page->index >> params->log_arity;
+ unsigned long level0_ra_pages =
+ min(max_ra_pages, params->level0_blocks - level0_index);
+
+ if (!PageError(page) &&
+ !verify_page(inode, vi, req, page, level0_ra_pages))
+ SetPageError(page);
+ }
+
+ fsverity_free_hash_request(params->hash_alg, req);
+}
+EXPORT_SYMBOL_GPL(fsverity_verify_bio);
+#endif /* CONFIG_BLOCK */
+
+/**
+ * fsverity_enqueue_verify_work() - enqueue work on the fs-verity workqueue
+ * @work: the work to enqueue
+ *
+ * Enqueue verification work for asynchronous processing.
+ */
+void fsverity_enqueue_verify_work(struct work_struct *work)
+{
+ queue_work(fsverity_read_workqueue, work);
+}
+EXPORT_SYMBOL_GPL(fsverity_enqueue_verify_work);
+
+int __init fsverity_init_workqueue(void)
+{
+ /*
+ * Use an unbound workqueue to allow bios to be verified in parallel
+ * even when they happen to complete on the same CPU. This sacrifices
+ * locality, but it's worthwhile since hashing is CPU-intensive.
+ *
+ * Also use a high-priority workqueue to prioritize verification work,
+ * which blocks reads from completing, over regular application tasks.
+ */
+ fsverity_read_workqueue = alloc_workqueue("fsverity_read_queue",
+ WQ_UNBOUND | WQ_HIGHPRI,
+ num_online_cpus());
+ if (!fsverity_read_workqueue)
+ return -ENOMEM;
+ return 0;
+}
+
+void __init fsverity_exit_workqueue(void)
+{
+ destroy_workqueue(fsverity_read_workqueue);
+ fsverity_read_workqueue = NULL;
+}
diff --git a/fs/xattr.c b/fs/xattr.c
index 470ee0a..749665b 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -342,6 +342,9 @@ __vfs_getxattr(struct dentry *dentry, struct inode *inode, const char *name,
handler = xattr_resolve_name(inode, &name);
if (IS_ERR(handler))
return PTR_ERR(handler);
+ if (unlikely(handler->__get))
+ return handler->__get(handler, dentry, inode, name, value,
+ size);
if (!handler->get)
return -EOPNOTSUPP;
return handler->get(handler, dentry, inode, name, value, size);
@@ -353,6 +356,7 @@ vfs_getxattr(struct dentry *dentry, const char *name, void *value, size_t size)
{
struct inode *inode = dentry->d_inode;
int error;
+ const struct xattr_handler *handler;
error = xattr_permission(inode, name, MAY_READ);
if (error)
@@ -375,7 +379,12 @@ vfs_getxattr(struct dentry *dentry, const char *name, void *value, size_t size)
return ret;
}
nolsm:
- return __vfs_getxattr(dentry, inode, name, value, size);
+ handler = xattr_resolve_name(inode, &name);
+ if (IS_ERR(handler))
+ return PTR_ERR(handler);
+ if (!handler->get)
+ return -EOPNOTSUPP;
+ return handler->get(handler, dentry, inode, name, value, size);
}
EXPORT_SYMBOL_GPL(vfs_getxattr);
diff --git a/include/OWNERS b/include/OWNERS
new file mode 100644
index 0000000..ab8142b
--- /dev/null
+++ b/include/OWNERS
@@ -0,0 +1,2 @@
+# include OWNERS from the authoritative android-mainline branch
+include kernel/common:android-mainline:/include/OWNERS
diff --git a/include/asm-generic/vdso/vsyscall.h b/include/asm-generic/vdso/vsyscall.h
new file mode 100644
index 0000000..ce41032
--- /dev/null
+++ b/include/asm-generic/vdso/vsyscall.h
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_GENERIC_VSYSCALL_H
+#define __ASM_GENERIC_VSYSCALL_H
+
+#ifndef __ASSEMBLY__
+
+#ifndef __arch_get_k_vdso_data
+static __always_inline struct vdso_data *__arch_get_k_vdso_data(void)
+{
+ return NULL;
+}
+#endif /* __arch_get_k_vdso_data */
+
+#ifndef __arch_update_vdso_data
+static __always_inline int __arch_update_vdso_data(void)
+{
+ return 0;
+}
+#endif /* __arch_update_vdso_data */
+
+#ifndef __arch_get_clock_mode
+static __always_inline int __arch_get_clock_mode(struct timekeeper *tk)
+{
+ return 0;
+}
+#endif /* __arch_get_clock_mode */
+
+#ifndef __arch_update_vsyscall
+static __always_inline void __arch_update_vsyscall(struct vdso_data *vdata,
+ struct timekeeper *tk)
+{
+}
+#endif /* __arch_update_vsyscall */
+
+#ifndef __arch_sync_vdso_data
+static __always_inline void __arch_sync_vdso_data(struct vdso_data *vdata)
+{
+}
+#endif /* __arch_sync_vdso_data */
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* __ASM_GENERIC_VSYSCALL_H */
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index a26e6f5..222e269 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -66,15 +66,17 @@
* RODATA_MAIN is not used because existing code already defines .rodata.x
* sections to be brought in with rodata.
*/
-#ifdef CONFIG_LD_DEAD_CODE_DATA_ELIMINATION
+#if defined(CONFIG_LD_DEAD_CODE_DATA_ELIMINATION) || defined(CONFIG_LTO_CLANG)
#define TEXT_MAIN .text .text.[0-9a-zA-Z_]*
-#define DATA_MAIN .data .data.[0-9a-zA-Z_]* .data..LPBX*
+#define TEXT_CFI_MAIN .text.[0-9a-zA-Z_]*.cfi
+#define DATA_MAIN .data .data.[0-9a-zA-Z_]* .data..L* .data..compoundliteral*
#define SDATA_MAIN .sdata .sdata.[0-9a-zA-Z_]*
-#define RODATA_MAIN .rodata .rodata.[0-9a-zA-Z_]*
-#define BSS_MAIN .bss .bss.[0-9a-zA-Z_]*
+#define RODATA_MAIN .rodata .rodata.[0-9a-zA-Z_]* .rodata..L*
+#define BSS_MAIN .bss .bss.[0-9a-zA-Z_]* .bss..compoundliteral*
#define SBSS_MAIN .sbss .sbss.[0-9a-zA-Z_]*
#else
#define TEXT_MAIN .text
+#define TEXT_CFI_MAIN .text.cfi
#define DATA_MAIN .data
#define SDATA_MAIN .sdata
#define RODATA_MAIN .rodata
@@ -505,8 +507,10 @@
*(TEXT_MAIN .text.fixup) \
*(.text.unlikely .text.unlikely.*) \
*(.text.unknown .text.unknown.*) \
+ *(TEXT_CFI_MAIN) \
NOINSTR_TEXT \
*(.text..refcount) \
+ *(.text..ftrace) \
*(.ref.text) \
*(.text.asan.* .text.tsan.*) \
MEM_KEEP(init.text*) \
diff --git a/include/clocksource/arm_arch_timer.h b/include/clocksource/arm_arch_timer.h
index 349e595..99ccc84f 100644
--- a/include/clocksource/arm_arch_timer.h
+++ b/include/clocksource/arm_arch_timer.h
@@ -96,6 +96,7 @@ extern u32 arch_timer_get_rate(void);
extern u64 (*arch_timer_read_counter)(void);
extern struct arch_timer_kvm_info *arch_timer_get_kvm_info(void);
extern bool arch_timer_evtstrm_available(void);
+extern void arch_timer_mem_get_cval(u32 *lo, u32 *hi);
#else
@@ -114,6 +115,10 @@ static inline bool arch_timer_evtstrm_available(void)
return false;
}
+static void arch_timer_mem_get_cval(u32 *lo, u32 *hi)
+{
+ *lo = *hi = ~0U;
+}
#endif
#endif
diff --git a/include/crypto/blake2s.h b/include/crypto/blake2s.h
new file mode 100644
index 0000000..b471dea
--- /dev/null
+++ b/include/crypto/blake2s.h
@@ -0,0 +1,106 @@
+/* SPDX-License-Identifier: GPL-2.0 OR MIT */
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#ifndef BLAKE2S_H
+#define BLAKE2S_H
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+
+#include <asm/bug.h>
+
+enum blake2s_lengths {
+ BLAKE2S_BLOCK_SIZE = 64,
+ BLAKE2S_HASH_SIZE = 32,
+ BLAKE2S_KEY_SIZE = 32,
+
+ BLAKE2S_128_HASH_SIZE = 16,
+ BLAKE2S_160_HASH_SIZE = 20,
+ BLAKE2S_224_HASH_SIZE = 28,
+ BLAKE2S_256_HASH_SIZE = 32,
+};
+
+struct blake2s_state {
+ u32 h[8];
+ u32 t[2];
+ u32 f[2];
+ u8 buf[BLAKE2S_BLOCK_SIZE];
+ unsigned int buflen;
+ unsigned int outlen;
+};
+
+enum blake2s_iv {
+ BLAKE2S_IV0 = 0x6A09E667UL,
+ BLAKE2S_IV1 = 0xBB67AE85UL,
+ BLAKE2S_IV2 = 0x3C6EF372UL,
+ BLAKE2S_IV3 = 0xA54FF53AUL,
+ BLAKE2S_IV4 = 0x510E527FUL,
+ BLAKE2S_IV5 = 0x9B05688CUL,
+ BLAKE2S_IV6 = 0x1F83D9ABUL,
+ BLAKE2S_IV7 = 0x5BE0CD19UL,
+};
+
+void blake2s_update(struct blake2s_state *state, const u8 *in, size_t inlen);
+void blake2s_final(struct blake2s_state *state, u8 *out);
+
+static inline void blake2s_init_param(struct blake2s_state *state,
+ const u32 param)
+{
+ *state = (struct blake2s_state){{
+ BLAKE2S_IV0 ^ param,
+ BLAKE2S_IV1,
+ BLAKE2S_IV2,
+ BLAKE2S_IV3,
+ BLAKE2S_IV4,
+ BLAKE2S_IV5,
+ BLAKE2S_IV6,
+ BLAKE2S_IV7,
+ }};
+}
+
+static inline void blake2s_init(struct blake2s_state *state,
+ const size_t outlen)
+{
+ blake2s_init_param(state, 0x01010000 | outlen);
+ state->outlen = outlen;
+}
+
+static inline void blake2s_init_key(struct blake2s_state *state,
+ const size_t outlen, const void *key,
+ const size_t keylen)
+{
+ WARN_ON(IS_ENABLED(DEBUG) && (!outlen || outlen > BLAKE2S_HASH_SIZE ||
+ !key || !keylen || keylen > BLAKE2S_KEY_SIZE));
+
+ blake2s_init_param(state, 0x01010000 | keylen << 8 | outlen);
+ memcpy(state->buf, key, keylen);
+ state->buflen = BLAKE2S_BLOCK_SIZE;
+ state->outlen = outlen;
+}
+
+static inline void blake2s(u8 *out, const u8 *in, const u8 *key,
+ const size_t outlen, const size_t inlen,
+ const size_t keylen)
+{
+ struct blake2s_state state;
+
+ WARN_ON(IS_ENABLED(DEBUG) && ((!in && inlen > 0) || !out || !outlen ||
+ outlen > BLAKE2S_HASH_SIZE || keylen > BLAKE2S_KEY_SIZE ||
+ (!key && keylen)));
+
+ if (keylen)
+ blake2s_init_key(&state, outlen, key, keylen);
+ else
+ blake2s_init(&state, outlen);
+
+ blake2s_update(&state, in, inlen);
+ blake2s_final(&state, out);
+}
+
+void blake2s256_hmac(u8 *out, const u8 *in, const u8 *key, const size_t inlen,
+ const size_t keylen);
+
+#endif /* BLAKE2S_H */
diff --git a/include/crypto/chacha.h b/include/crypto/chacha.h
new file mode 100644
index 0000000..d64f022
--- /dev/null
+++ b/include/crypto/chacha.h
@@ -0,0 +1,98 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Common values and helper functions for the ChaCha and XChaCha stream ciphers.
+ *
+ * XChaCha extends ChaCha's nonce to 192 bits, while provably retaining ChaCha's
+ * security. Here they share the same key size, tfm context, and setkey
+ * function; only their IV size and encrypt/decrypt function differ.
+ *
+ * The ChaCha paper specifies 20, 12, and 8-round variants. In general, it is
+ * recommended to use the 20-round variant ChaCha20. However, the other
+ * variants can be needed in some performance-sensitive scenarios. The generic
+ * ChaCha code currently allows only the 20 and 12-round variants.
+ */
+
+#ifndef _CRYPTO_CHACHA_H
+#define _CRYPTO_CHACHA_H
+
+#include <asm/unaligned.h>
+#include <linux/types.h>
+
+/* 32-bit stream position, then 96-bit nonce (RFC7539 convention) */
+#define CHACHA_IV_SIZE 16
+
+#define CHACHA_KEY_SIZE 32
+#define CHACHA_BLOCK_SIZE 64
+
+#define CHACHA_STATE_WORDS (CHACHA_BLOCK_SIZE / sizeof(u32))
+
+/* 192-bit nonce, then 64-bit stream position */
+#define XCHACHA_IV_SIZE 32
+
+void chacha_block_generic(u32 *state, u8 *stream, int nrounds);
+static inline void chacha20_block(u32 *state, u8 *stream)
+{
+ chacha_block_generic(state, stream, 20);
+}
+
+void hchacha_block_arch(const u32 *state, u32 *out, int nrounds);
+void hchacha_block_generic(const u32 *state, u32 *out, int nrounds);
+
+static inline void hchacha_block(const u32 *state, u32 *out, int nrounds)
+{
+ if (IS_ENABLED(CONFIG_CRYPTO_ARCH_HAVE_LIB_CHACHA))
+ hchacha_block_arch(state, out, nrounds);
+ else
+ hchacha_block_generic(state, out, nrounds);
+}
+
+void chacha_init_arch(u32 *state, const u32 *key, const u8 *iv);
+static inline void chacha_init_generic(u32 *state, const u32 *key, const u8 *iv)
+{
+ state[0] = 0x61707865; /* "expa" */
+ state[1] = 0x3320646e; /* "nd 3" */
+ state[2] = 0x79622d32; /* "2-by" */
+ state[3] = 0x6b206574; /* "te k" */
+ state[4] = key[0];
+ state[5] = key[1];
+ state[6] = key[2];
+ state[7] = key[3];
+ state[8] = key[4];
+ state[9] = key[5];
+ state[10] = key[6];
+ state[11] = key[7];
+ state[12] = get_unaligned_le32(iv + 0);
+ state[13] = get_unaligned_le32(iv + 4);
+ state[14] = get_unaligned_le32(iv + 8);
+ state[15] = get_unaligned_le32(iv + 12);
+}
+
+static inline void chacha_init(u32 *state, const u32 *key, const u8 *iv)
+{
+ if (IS_ENABLED(CONFIG_CRYPTO_ARCH_HAVE_LIB_CHACHA))
+ chacha_init_arch(state, key, iv);
+ else
+ chacha_init_generic(state, key, iv);
+}
+
+void chacha_crypt_arch(u32 *state, u8 *dst, const u8 *src,
+ unsigned int bytes, int nrounds);
+void chacha_crypt_generic(u32 *state, u8 *dst, const u8 *src,
+ unsigned int bytes, int nrounds);
+
+static inline void chacha_crypt(u32 *state, u8 *dst, const u8 *src,
+ unsigned int bytes, int nrounds)
+{
+ if (IS_ENABLED(CONFIG_CRYPTO_ARCH_HAVE_LIB_CHACHA))
+ chacha_crypt_arch(state, dst, src, bytes, nrounds);
+ else
+ chacha_crypt_generic(state, dst, src, bytes, nrounds);
+}
+
+static inline void chacha20_crypt(u32 *state, u8 *dst, const u8 *src,
+ unsigned int bytes)
+{
+ chacha_crypt(state, dst, src, bytes, 20);
+}
+
+#endif /* _CRYPTO_CHACHA_H */
diff --git a/include/crypto/chacha20.h b/include/crypto/chacha20.h
deleted file mode 100644
index f76302d..0000000
--- a/include/crypto/chacha20.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Common values for the ChaCha20 algorithm
- */
-
-#ifndef _CRYPTO_CHACHA20_H
-#define _CRYPTO_CHACHA20_H
-
-#include <crypto/skcipher.h>
-#include <linux/types.h>
-#include <linux/crypto.h>
-
-#define CHACHA20_IV_SIZE 16
-#define CHACHA20_KEY_SIZE 32
-#define CHACHA20_BLOCK_SIZE 64
-
-struct chacha20_ctx {
- u32 key[8];
-};
-
-void chacha20_block(u32 *state, u8 *stream);
-void crypto_chacha20_init(u32 *state, struct chacha20_ctx *ctx, u8 *iv);
-int crypto_chacha20_setkey(struct crypto_skcipher *tfm, const u8 *key,
- unsigned int keysize);
-int crypto_chacha20_crypt(struct skcipher_request *req);
-
-#endif
diff --git a/include/crypto/chacha20poly1305.h b/include/crypto/chacha20poly1305.h
new file mode 100644
index 0000000..d2ac3ff7d
--- /dev/null
+++ b/include/crypto/chacha20poly1305.h
@@ -0,0 +1,50 @@
+/* SPDX-License-Identifier: GPL-2.0 OR MIT */
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#ifndef __CHACHA20POLY1305_H
+#define __CHACHA20POLY1305_H
+
+#include <linux/types.h>
+#include <linux/scatterlist.h>
+
+enum chacha20poly1305_lengths {
+ XCHACHA20POLY1305_NONCE_SIZE = 24,
+ CHACHA20POLY1305_KEY_SIZE = 32,
+ CHACHA20POLY1305_AUTHTAG_SIZE = 16
+};
+
+void chacha20poly1305_encrypt(u8 *dst, const u8 *src, const size_t src_len,
+ const u8 *ad, const size_t ad_len,
+ const u64 nonce,
+ const u8 key[CHACHA20POLY1305_KEY_SIZE]);
+
+bool __must_check
+chacha20poly1305_decrypt(u8 *dst, const u8 *src, const size_t src_len,
+ const u8 *ad, const size_t ad_len, const u64 nonce,
+ const u8 key[CHACHA20POLY1305_KEY_SIZE]);
+
+void xchacha20poly1305_encrypt(u8 *dst, const u8 *src, const size_t src_len,
+ const u8 *ad, const size_t ad_len,
+ const u8 nonce[XCHACHA20POLY1305_NONCE_SIZE],
+ const u8 key[CHACHA20POLY1305_KEY_SIZE]);
+
+bool __must_check xchacha20poly1305_decrypt(
+ u8 *dst, const u8 *src, const size_t src_len, const u8 *ad,
+ const size_t ad_len, const u8 nonce[XCHACHA20POLY1305_NONCE_SIZE],
+ const u8 key[CHACHA20POLY1305_KEY_SIZE]);
+
+bool chacha20poly1305_encrypt_sg_inplace(struct scatterlist *src, size_t src_len,
+ const u8 *ad, const size_t ad_len,
+ const u64 nonce,
+ const u8 key[CHACHA20POLY1305_KEY_SIZE]);
+
+bool chacha20poly1305_decrypt_sg_inplace(struct scatterlist *src, size_t src_len,
+ const u8 *ad, const size_t ad_len,
+ const u64 nonce,
+ const u8 key[CHACHA20POLY1305_KEY_SIZE]);
+
+bool chacha20poly1305_selftest(void);
+
+#endif /* __CHACHA20POLY1305_H */
diff --git a/include/crypto/curve25519.h b/include/crypto/curve25519.h
new file mode 100644
index 0000000..9ecb3c1
--- /dev/null
+++ b/include/crypto/curve25519.h
@@ -0,0 +1,73 @@
+/* SPDX-License-Identifier: GPL-2.0 OR MIT */
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#ifndef CURVE25519_H
+#define CURVE25519_H
+
+#include <crypto/algapi.h> // For crypto_memneq.
+#include <linux/types.h>
+#include <linux/random.h>
+
+enum curve25519_lengths {
+ CURVE25519_KEY_SIZE = 32
+};
+
+extern const u8 curve25519_null_point[];
+extern const u8 curve25519_base_point[];
+
+void curve25519_generic(u8 out[CURVE25519_KEY_SIZE],
+ const u8 scalar[CURVE25519_KEY_SIZE],
+ const u8 point[CURVE25519_KEY_SIZE]);
+
+void curve25519_arch(u8 out[CURVE25519_KEY_SIZE],
+ const u8 scalar[CURVE25519_KEY_SIZE],
+ const u8 point[CURVE25519_KEY_SIZE]);
+
+void curve25519_base_arch(u8 pub[CURVE25519_KEY_SIZE],
+ const u8 secret[CURVE25519_KEY_SIZE]);
+
+static inline
+bool __must_check curve25519(u8 mypublic[CURVE25519_KEY_SIZE],
+ const u8 secret[CURVE25519_KEY_SIZE],
+ const u8 basepoint[CURVE25519_KEY_SIZE])
+{
+ if (IS_ENABLED(CONFIG_CRYPTO_ARCH_HAVE_LIB_CURVE25519) &&
+ (!IS_ENABLED(CONFIG_CRYPTO_CURVE25519_X86) || IS_ENABLED(CONFIG_AS_ADX)))
+ curve25519_arch(mypublic, secret, basepoint);
+ else
+ curve25519_generic(mypublic, secret, basepoint);
+ return crypto_memneq(mypublic, curve25519_null_point,
+ CURVE25519_KEY_SIZE);
+}
+
+static inline bool
+__must_check curve25519_generate_public(u8 pub[CURVE25519_KEY_SIZE],
+ const u8 secret[CURVE25519_KEY_SIZE])
+{
+ if (unlikely(!crypto_memneq(secret, curve25519_null_point,
+ CURVE25519_KEY_SIZE)))
+ return false;
+
+ if (IS_ENABLED(CONFIG_CRYPTO_ARCH_HAVE_LIB_CURVE25519) &&
+ (!IS_ENABLED(CONFIG_CRYPTO_CURVE25519_X86) || IS_ENABLED(CONFIG_AS_ADX)))
+ curve25519_base_arch(pub, secret);
+ else
+ curve25519_generic(pub, secret, curve25519_base_point);
+ return crypto_memneq(pub, curve25519_null_point, CURVE25519_KEY_SIZE);
+}
+
+static inline void curve25519_clamp_secret(u8 secret[CURVE25519_KEY_SIZE])
+{
+ secret[0] &= 248;
+ secret[31] = (secret[31] & 127) | 64;
+}
+
+static inline void curve25519_generate_secret(u8 secret[CURVE25519_KEY_SIZE])
+{
+ get_random_bytes_wait(secret, CURVE25519_KEY_SIZE);
+ curve25519_clamp_secret(secret);
+}
+
+#endif /* CURVE25519_H */
diff --git a/include/crypto/internal/blake2s.h b/include/crypto/internal/blake2s.h
new file mode 100644
index 0000000..74ff770
--- /dev/null
+++ b/include/crypto/internal/blake2s.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 OR MIT */
+
+#ifndef BLAKE2S_INTERNAL_H
+#define BLAKE2S_INTERNAL_H
+
+#include <crypto/blake2s.h>
+
+struct blake2s_tfm_ctx {
+ u8 key[BLAKE2S_KEY_SIZE];
+ unsigned int keylen;
+};
+
+void blake2s_compress_generic(struct blake2s_state *state,const u8 *block,
+ size_t nblocks, const u32 inc);
+
+void blake2s_compress_arch(struct blake2s_state *state,const u8 *block,
+ size_t nblocks, const u32 inc);
+
+static inline void blake2s_set_lastblock(struct blake2s_state *state)
+{
+ state->f[0] = -1;
+}
+
+#endif /* BLAKE2S_INTERNAL_H */
diff --git a/include/crypto/internal/chacha.h b/include/crypto/internal/chacha.h
new file mode 100644
index 0000000..b085dc1
--- /dev/null
+++ b/include/crypto/internal/chacha.h
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef _CRYPTO_INTERNAL_CHACHA_H
+#define _CRYPTO_INTERNAL_CHACHA_H
+
+#include <crypto/chacha.h>
+#include <crypto/internal/skcipher.h>
+#include <linux/crypto.h>
+
+struct chacha_ctx {
+ u32 key[8];
+ int nrounds;
+};
+
+static inline int chacha_setkey(struct crypto_skcipher *tfm, const u8 *key,
+ unsigned int keysize, int nrounds)
+{
+ struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
+ int i;
+
+ if (keysize != CHACHA_KEY_SIZE)
+ return -EINVAL;
+
+ for (i = 0; i < ARRAY_SIZE(ctx->key); i++)
+ ctx->key[i] = get_unaligned_le32(key + i * sizeof(u32));
+
+ ctx->nrounds = nrounds;
+ return 0;
+}
+
+static inline int chacha20_setkey(struct crypto_skcipher *tfm, const u8 *key,
+ unsigned int keysize)
+{
+ return chacha_setkey(tfm, key, keysize, 20);
+}
+
+static inline int chacha12_setkey(struct crypto_skcipher *tfm, const u8 *key,
+ unsigned int keysize)
+{
+ return chacha_setkey(tfm, key, keysize, 12);
+}
+
+#endif /* _CRYPTO_CHACHA_H */
diff --git a/include/crypto/internal/poly1305.h b/include/crypto/internal/poly1305.h
new file mode 100644
index 0000000..064e52ca
--- /dev/null
+++ b/include/crypto/internal/poly1305.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Common values for the Poly1305 algorithm
+ */
+
+#ifndef _CRYPTO_INTERNAL_POLY1305_H
+#define _CRYPTO_INTERNAL_POLY1305_H
+
+#include <asm/unaligned.h>
+#include <linux/types.h>
+#include <crypto/poly1305.h>
+
+/*
+ * Poly1305 core functions. These only accept whole blocks; the caller must
+ * handle any needed block buffering and padding. 'hibit' must be 1 for any
+ * full blocks, or 0 for the final block if it had to be padded. If 'nonce' is
+ * non-NULL, then it's added at the end to compute the Poly1305 MAC. Otherwise,
+ * only the ε-almost-∆-universal hash function (not the full MAC) is computed.
+ */
+
+void poly1305_core_setkey(struct poly1305_core_key *key, const u8 *raw_key);
+static inline void poly1305_core_init(struct poly1305_state *state)
+{
+ *state = (struct poly1305_state){};
+}
+
+void poly1305_core_blocks(struct poly1305_state *state,
+ const struct poly1305_core_key *key, const void *src,
+ unsigned int nblocks, u32 hibit);
+void poly1305_core_emit(const struct poly1305_state *state, const u32 nonce[4],
+ void *dst);
+
+#endif
diff --git a/include/crypto/nhpoly1305.h b/include/crypto/nhpoly1305.h
new file mode 100644
index 0000000..306925f
--- /dev/null
+++ b/include/crypto/nhpoly1305.h
@@ -0,0 +1,74 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Common values and helper functions for the NHPoly1305 hash function.
+ */
+
+#ifndef _NHPOLY1305_H
+#define _NHPOLY1305_H
+
+#include <crypto/hash.h>
+#include <crypto/internal/poly1305.h>
+
+/* NH parameterization: */
+
+/* Endianness: little */
+/* Word size: 32 bits (works well on NEON, SSE2, AVX2) */
+
+/* Stride: 2 words (optimal on ARM32 NEON; works okay on other CPUs too) */
+#define NH_PAIR_STRIDE 2
+#define NH_MESSAGE_UNIT (NH_PAIR_STRIDE * 2 * sizeof(u32))
+
+/* Num passes (Toeplitz iteration count): 4, to give ε = 2^{-128} */
+#define NH_NUM_PASSES 4
+#define NH_HASH_BYTES (NH_NUM_PASSES * sizeof(u64))
+
+/* Max message size: 1024 bytes (32x compression factor) */
+#define NH_NUM_STRIDES 64
+#define NH_MESSAGE_WORDS (NH_PAIR_STRIDE * 2 * NH_NUM_STRIDES)
+#define NH_MESSAGE_BYTES (NH_MESSAGE_WORDS * sizeof(u32))
+#define NH_KEY_WORDS (NH_MESSAGE_WORDS + \
+ NH_PAIR_STRIDE * 2 * (NH_NUM_PASSES - 1))
+#define NH_KEY_BYTES (NH_KEY_WORDS * sizeof(u32))
+
+#define NHPOLY1305_KEY_SIZE (POLY1305_BLOCK_SIZE + NH_KEY_BYTES)
+
+struct nhpoly1305_key {
+ struct poly1305_core_key poly_key;
+ u32 nh_key[NH_KEY_WORDS];
+};
+
+struct nhpoly1305_state {
+
+ /* Running total of polynomial evaluation */
+ struct poly1305_state poly_state;
+
+ /* Partial block buffer */
+ u8 buffer[NH_MESSAGE_UNIT];
+ unsigned int buflen;
+
+ /*
+ * Number of bytes remaining until the current NH message reaches
+ * NH_MESSAGE_BYTES. When nonzero, 'nh_hash' holds the partial NH hash.
+ */
+ unsigned int nh_remaining;
+
+ __le64 nh_hash[NH_NUM_PASSES];
+};
+
+typedef void (*nh_t)(const u32 *key, const u8 *message, size_t message_len,
+ __le64 hash[NH_NUM_PASSES]);
+
+int crypto_nhpoly1305_setkey(struct crypto_shash *tfm,
+ const u8 *key, unsigned int keylen);
+
+int crypto_nhpoly1305_init(struct shash_desc *desc);
+int crypto_nhpoly1305_update(struct shash_desc *desc,
+ const u8 *src, unsigned int srclen);
+int crypto_nhpoly1305_update_helper(struct shash_desc *desc,
+ const u8 *src, unsigned int srclen,
+ nh_t nh_fn);
+int crypto_nhpoly1305_final(struct shash_desc *desc, u8 *dst);
+int crypto_nhpoly1305_final_helper(struct shash_desc *desc, u8 *dst,
+ nh_t nh_fn);
+
+#endif /* _NHPOLY1305_H */
diff --git a/include/crypto/poly1305.h b/include/crypto/poly1305.h
index f718a19..f1f67fc 100644
--- a/include/crypto/poly1305.h
+++ b/include/crypto/poly1305.h
@@ -13,28 +13,85 @@
#define POLY1305_KEY_SIZE 32
#define POLY1305_DIGEST_SIZE 16
+/* The poly1305_key and poly1305_state types are mostly opaque and
+ * implementation-defined. Limbs might be in base 2^64 or base 2^26, or
+ * different yet. The union type provided keeps these 64-bit aligned for the
+ * case in which this is implemented using 64x64 multiplies.
+ */
+
+struct poly1305_key {
+ union {
+ u32 r[5];
+ u64 r64[3];
+ };
+};
+
+struct poly1305_core_key {
+ struct poly1305_key key;
+ struct poly1305_key precomputed_s;
+};
+
+struct poly1305_state {
+ union {
+ u32 h[5];
+ u64 h64[3];
+ };
+};
+
struct poly1305_desc_ctx {
- /* key */
- u32 r[5];
- /* finalize key */
- u32 s[4];
- /* accumulator */
- u32 h[5];
/* partial buffer */
u8 buf[POLY1305_BLOCK_SIZE];
/* bytes used in partial buffer */
unsigned int buflen;
- /* r key has been set */
- bool rset;
- /* s key has been set */
+ /* how many keys have been set in r[] */
+ unsigned short rset;
+ /* whether s[] has been set */
bool sset;
+ /* finalize key */
+ u32 s[4];
+ /* accumulator */
+ struct poly1305_state h;
+ /* key */
+ union {
+ struct poly1305_key opaque_r[CONFIG_CRYPTO_LIB_POLY1305_RSIZE];
+ struct poly1305_core_key core_r;
+ };
};
-int crypto_poly1305_init(struct shash_desc *desc);
-unsigned int crypto_poly1305_setdesckey(struct poly1305_desc_ctx *dctx,
- const u8 *src, unsigned int srclen);
-int crypto_poly1305_update(struct shash_desc *desc,
- const u8 *src, unsigned int srclen);
-int crypto_poly1305_final(struct shash_desc *desc, u8 *dst);
+void poly1305_init_arch(struct poly1305_desc_ctx *desc, const u8 *key);
+void poly1305_init_generic(struct poly1305_desc_ctx *desc, const u8 *key);
+
+static inline void poly1305_init(struct poly1305_desc_ctx *desc, const u8 *key)
+{
+ if (IS_ENABLED(CONFIG_CRYPTO_ARCH_HAVE_LIB_POLY1305))
+ poly1305_init_arch(desc, key);
+ else
+ poly1305_init_generic(desc, key);
+}
+
+void poly1305_update_arch(struct poly1305_desc_ctx *desc, const u8 *src,
+ unsigned int nbytes);
+void poly1305_update_generic(struct poly1305_desc_ctx *desc, const u8 *src,
+ unsigned int nbytes);
+
+static inline void poly1305_update(struct poly1305_desc_ctx *desc,
+ const u8 *src, unsigned int nbytes)
+{
+ if (IS_ENABLED(CONFIG_CRYPTO_ARCH_HAVE_LIB_POLY1305))
+ poly1305_update_arch(desc, src, nbytes);
+ else
+ poly1305_update_generic(desc, src, nbytes);
+}
+
+void poly1305_final_arch(struct poly1305_desc_ctx *desc, u8 *digest);
+void poly1305_final_generic(struct poly1305_desc_ctx *desc, u8 *digest);
+
+static inline void poly1305_final(struct poly1305_desc_ctx *desc, u8 *digest)
+{
+ if (IS_ENABLED(CONFIG_CRYPTO_ARCH_HAVE_LIB_POLY1305))
+ poly1305_final_arch(desc, digest);
+ else
+ poly1305_final_generic(desc, digest);
+}
#endif
diff --git a/include/crypto/skcipher.h b/include/crypto/skcipher.h
index c7553f8..84d0d18 100644
--- a/include/crypto/skcipher.h
+++ b/include/crypto/skcipher.h
@@ -65,6 +65,10 @@ struct crypto_skcipher {
struct crypto_tfm base;
};
+struct crypto_sync_skcipher {
+ struct crypto_skcipher base;
+};
+
/**
* struct skcipher_alg - symmetric key cipher definition
* @min_keysize: Minimum key size supported by the transformation. This is the
@@ -139,6 +143,19 @@ struct skcipher_alg {
struct crypto_alg base;
};
+#define MAX_SYNC_SKCIPHER_REQSIZE 384
+/*
+ * This performs a type-check against the "tfm" argument to make sure
+ * all users have the correct skcipher tfm for doing on-stack requests.
+ */
+#define SYNC_SKCIPHER_REQUEST_ON_STACK(name, tfm) \
+ char __##name##_desc[sizeof(struct skcipher_request) + \
+ MAX_SYNC_SKCIPHER_REQSIZE + \
+ (!(sizeof((struct crypto_sync_skcipher *)1 == \
+ (typeof(tfm))1))) \
+ ] CRYPTO_MINALIGN_ATTR; \
+ struct skcipher_request *name = (void *)__##name##_desc
+
#define SKCIPHER_REQUEST_ON_STACK(name, tfm) \
char __##name##_desc[sizeof(struct skcipher_request) + \
crypto_skcipher_reqsize(tfm)] CRYPTO_MINALIGN_ATTR; \
@@ -197,6 +214,9 @@ static inline struct crypto_skcipher *__crypto_skcipher_cast(
struct crypto_skcipher *crypto_alloc_skcipher(const char *alg_name,
u32 type, u32 mask);
+struct crypto_sync_skcipher *crypto_alloc_sync_skcipher(const char *alg_name,
+ u32 type, u32 mask);
+
static inline struct crypto_tfm *crypto_skcipher_tfm(
struct crypto_skcipher *tfm)
{
@@ -214,6 +234,11 @@ static inline void crypto_free_skcipher(struct crypto_skcipher *tfm)
crypto_destroy_tfm(tfm, crypto_skcipher_tfm(tfm));
}
+static inline void crypto_free_sync_skcipher(struct crypto_sync_skcipher *tfm)
+{
+ crypto_free_skcipher(&tfm->base);
+}
+
/**
* crypto_has_skcipher() - Search for the availability of an skcipher.
* @alg_name: is the cra_name / name or cra_driver_name / driver name of the
@@ -282,6 +307,12 @@ static inline unsigned int crypto_skcipher_ivsize(struct crypto_skcipher *tfm)
return tfm->ivsize;
}
+static inline unsigned int crypto_sync_skcipher_ivsize(
+ struct crypto_sync_skcipher *tfm)
+{
+ return crypto_skcipher_ivsize(&tfm->base);
+}
+
static inline unsigned int crypto_skcipher_alg_chunksize(
struct skcipher_alg *alg)
{
@@ -358,6 +389,12 @@ static inline unsigned int crypto_skcipher_blocksize(
return crypto_tfm_alg_blocksize(crypto_skcipher_tfm(tfm));
}
+static inline unsigned int crypto_sync_skcipher_blocksize(
+ struct crypto_sync_skcipher *tfm)
+{
+ return crypto_skcipher_blocksize(&tfm->base);
+}
+
static inline unsigned int crypto_skcipher_alignmask(
struct crypto_skcipher *tfm)
{
@@ -381,6 +418,24 @@ static inline void crypto_skcipher_clear_flags(struct crypto_skcipher *tfm,
crypto_tfm_clear_flags(crypto_skcipher_tfm(tfm), flags);
}
+static inline u32 crypto_sync_skcipher_get_flags(
+ struct crypto_sync_skcipher *tfm)
+{
+ return crypto_skcipher_get_flags(&tfm->base);
+}
+
+static inline void crypto_sync_skcipher_set_flags(
+ struct crypto_sync_skcipher *tfm, u32 flags)
+{
+ crypto_skcipher_set_flags(&tfm->base, flags);
+}
+
+static inline void crypto_sync_skcipher_clear_flags(
+ struct crypto_sync_skcipher *tfm, u32 flags)
+{
+ crypto_skcipher_clear_flags(&tfm->base, flags);
+}
+
/**
* crypto_skcipher_setkey() - set key for cipher
* @tfm: cipher handle
@@ -403,6 +458,12 @@ static inline int crypto_skcipher_setkey(struct crypto_skcipher *tfm,
return tfm->setkey(tfm, key, keylen);
}
+static inline int crypto_sync_skcipher_setkey(struct crypto_sync_skcipher *tfm,
+ const u8 *key, unsigned int keylen)
+{
+ return crypto_skcipher_setkey(&tfm->base, key, keylen);
+}
+
static inline unsigned int crypto_skcipher_default_keysize(
struct crypto_skcipher *tfm)
{
@@ -424,6 +485,14 @@ static inline struct crypto_skcipher *crypto_skcipher_reqtfm(
return __crypto_skcipher_cast(req->base.tfm);
}
+static inline struct crypto_sync_skcipher *crypto_sync_skcipher_reqtfm(
+ struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+
+ return container_of(tfm, struct crypto_sync_skcipher, base);
+}
+
/**
* crypto_skcipher_encrypt() - encrypt plaintext
* @req: reference to the skcipher_request handle that holds all information
@@ -502,6 +571,12 @@ static inline void skcipher_request_set_tfm(struct skcipher_request *req,
req->base.tfm = crypto_skcipher_tfm(tfm);
}
+static inline void skcipher_request_set_sync_tfm(struct skcipher_request *req,
+ struct crypto_sync_skcipher *tfm)
+{
+ skcipher_request_set_tfm(req, &tfm->base);
+}
+
static inline struct skcipher_request *skcipher_request_cast(
struct crypto_async_request *req)
{
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index e5f641c..a3c0247 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -39,6 +39,7 @@ struct drm_encoder;
struct drm_property;
struct drm_property_blob;
struct drm_printer;
+struct drm_panel;
struct edid;
enum drm_connector_force {
@@ -81,53 +82,6 @@ enum drm_connector_status {
connector_status_unknown = 3,
};
-/**
- * enum drm_connector_registration_status - userspace registration status for
- * a &drm_connector
- *
- * This enum is used to track the status of initializing a connector and
- * registering it with userspace, so that DRM can prevent bogus modesets on
- * connectors that no longer exist.
- */
-enum drm_connector_registration_state {
- /**
- * @DRM_CONNECTOR_INITIALIZING: The connector has just been created,
- * but has yet to be exposed to userspace. There should be no
- * additional restrictions to how the state of this connector may be
- * modified.
- */
- DRM_CONNECTOR_INITIALIZING = 0,
-
- /**
- * @DRM_CONNECTOR_REGISTERED: The connector has been fully initialized
- * and registered with sysfs, as such it has been exposed to
- * userspace. There should be no additional restrictions to how the
- * state of this connector may be modified.
- */
- DRM_CONNECTOR_REGISTERED = 1,
-
- /**
- * @DRM_CONNECTOR_UNREGISTERED: The connector has either been exposed
- * to userspace and has since been unregistered and removed from
- * userspace, or the connector was unregistered before it had a chance
- * to be exposed to userspace (e.g. still in the
- * @DRM_CONNECTOR_INITIALIZING state). When a connector is
- * unregistered, there are additional restrictions to how its state
- * may be modified:
- *
- * - An unregistered connector may only have its DPMS changed from
- * On->Off. Once DPMS is changed to Off, it may not be switched back
- * to On.
- * - Modesets are not allowed on unregistered connectors, unless they
- * would result in disabling its assigned CRTCs. This means
- * disabling a CRTC on an unregistered connector is OK, but enabling
- * one is not.
- * - Removing a CRTC from an unregistered connector is OK, but new
- * CRTCs may never be assigned to an unregistered connector.
- */
- DRM_CONNECTOR_UNREGISTERED = 2,
-};
-
enum subpixel_order {
SubPixelUnknown = 0,
SubPixelHorizontalRGB,
@@ -252,6 +206,40 @@ enum drm_panel_orientation {
DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
};
+/*
+ * This is a consolidated colorimetry list supported by HDMI and
+ * DP protocol standard. The respective connectors will register
+ * a property with the subset of this list (supported by that
+ * respective protocol). Userspace will set the colorspace through
+ * a colorspace property which will be created and exposed to
+ * userspace.
+ */
+
+/* For Default case, driver will set the colorspace */
+#define DRM_MODE_COLORIMETRY_DEFAULT 0
+/* CEA 861 Normal Colorimetry options */
+#define DRM_MODE_COLORIMETRY_NO_DATA 0
+#define DRM_MODE_COLORIMETRY_SMPTE_170M_YCC 1
+#define DRM_MODE_COLORIMETRY_BT709_YCC 2
+/* CEA 861 Extended Colorimetry Options */
+#define DRM_MODE_COLORIMETRY_XVYCC_601 3
+#define DRM_MODE_COLORIMETRY_XVYCC_709 4
+#define DRM_MODE_COLORIMETRY_SYCC_601 5
+#define DRM_MODE_COLORIMETRY_OPYCC_601 6
+#define DRM_MODE_COLORIMETRY_OPRGB 7
+#define DRM_MODE_COLORIMETRY_BT2020_CYCC 8
+#define DRM_MODE_COLORIMETRY_BT2020_RGB 9
+#define DRM_MODE_COLORIMETRY_BT2020_YCC 10
+/* Additional Colorimetry extension added as part of CTA 861.G */
+#define DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65 11
+#define DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER 12
+/* DP MSA Colorimetry Options */
+#define DRM_MODE_DP_COLORIMETRY_BT601_YCC 13
+#define DRM_MODE_DP_COLORIMETRY_BT709_YCC 14
+#define DRM_MODE_DP_COLORIMETRY_SRGB 15
+#define DRM_MODE_DP_COLORIMETRY_RGB_WIDE_GAMUT 16
+#define DRM_MODE_DP_COLORIMETRY_SCRGB 17
+
/**
* struct drm_display_info - runtime data about the connected sink
*
@@ -496,6 +484,13 @@ struct drm_connector_state {
unsigned int content_protection;
/**
+ * @colorspace: State variable for Connector property to request
+ * colorspace change on Sink. This is most commonly used to switch
+ * to wider color gamuts like BT2020.
+ */
+ u32 colorspace;
+
+ /**
* @writeback_job: Writeback job for writeback connectors
*
* Holds the framebuffer and out-fence for a writeback connector. As
@@ -899,12 +894,10 @@ struct drm_connector {
bool ycbcr_420_allowed;
/**
- * @registration_state: Is this connector initializing, exposed
- * (registered) with userspace, or unregistered?
- *
+ * @registered: Is this connector exposed (registered) with userspace?
* Protected by @mutex.
*/
- enum drm_connector_registration_state registration_state;
+ bool registered;
/**
* @modes:
@@ -965,6 +958,12 @@ struct drm_connector {
struct drm_property *content_protection_property;
/**
+ * @colorspace_property: Connector property to set the suitable
+ * colorspace supported by the sink.
+ */
+ struct drm_property *colorspace_property;
+
+ /**
* @path_blob_ptr:
*
* DRM blob property data for the DP MST path property. This should only
@@ -1056,6 +1055,54 @@ struct drm_connector {
/** @bad_edid_counter: track sinks that give us an EDID with invalid checksum */
unsigned bad_edid_counter;
+ /*
+ * @pt_scan_info: PT scan info obtained from the VCDB of EDID
+ * @it_scan_info: IT scan info obtained from the VCDB of EDID
+ * @ce_scan_info: CE scan info obtained from the VCDB of EDID
+ * @color_enc_fmt: Colorimetry encoding formats of sink
+ * @hdr_eotf: Electro optical transfer function obtained from HDR block
+ * @hdr_metadata_type_one: Metadata type one obtained from HDR block
+ * @hdr_max_luminance: desired max luminance obtained from HDR block
+ * @hdr_avg_luminance: desired avg luminance obtained from HDR block
+ * @hdr_min_luminance: desired min luminance obtained from HDR block
+ * @hdr_supported: does the sink support HDR content
+ * @max_tmds_char: indicates the maximum TMDS Character Rate supported
+ * @scdc_present: when set the sink supports SCDC functionality
+ * @rr_capable: when set the sink is capable of initiating an
+ * SCDC read request
+ * @supports_scramble: when set the sink supports less than
+ * 340Mcsc scrambling
+ * @flags_3d: 3D view(s) supported by the sink, see drm_edid.h
+ * DRM_EDID_3D_*)
+ */
+ u8 pt_scan_info;
+ u8 it_scan_info;
+ u8 ce_scan_info;
+ u32 color_enc_fmt;
+ u32 hdr_eotf;
+ bool hdr_metadata_type_one;
+ u32 hdr_max_luminance;
+ u32 hdr_avg_luminance;
+ u32 hdr_min_luminance;
+ bool hdr_supported;
+ u8 hdr_plus_app_ver;
+
+ /* EDID bits HDMI 2.0
+ * @max_tmds_char: indicates the maximum TMDS Character Rate supported
+ * @scdc_present: when set the sink supports SCDC functionality
+ * @rr_capable: when set the sink is capable of initiating an
+ * SCDC read request
+ * @supports_scramble: when set the sink supports less than
+ * 340Mcsc scrambling
+ * @flags_3d: 3D view(s) supported by the sink, see drm_edid.h
+ * (DRM_EDID_3D_*)
+ */
+ int max_tmds_char; /* in Mcsc */
+ bool scdc_present;
+ bool rr_capable;
+ bool supports_scramble;
+ int flags_3d;
+
/**
* @edid_corrupt: Indicates whether the last read EDID was corrupt. Used
* in Displayport compliance testing - Displayport Link CTS Core 1.2
@@ -1124,6 +1171,20 @@ struct drm_connector {
* &drm_mode_config.connector_free_work.
*/
struct llist_node free_node;
+
+ /**
+ * @panel:
+ *
+ * Can find the panel which connected to drm_connector.
+ */
+ struct drm_panel *panel;
+
+ /**
+ * @checksum:
+ *
+ * The calculated checksum value of first 127 bytes of associated EDID.
+ */
+ u8 checksum;
};
#define obj_to_connector(x) container_of(x, struct drm_connector, base)
@@ -1132,6 +1193,7 @@ int drm_connector_init(struct drm_device *dev,
struct drm_connector *connector,
const struct drm_connector_funcs *funcs,
int connector_type);
+void drm_connector_attach_edid_property(struct drm_connector *connector);
int drm_connector_register(struct drm_connector *connector);
void drm_connector_unregister(struct drm_connector *connector);
int drm_connector_attach_encoder(struct drm_connector *connector,
@@ -1214,24 +1276,6 @@ static inline void drm_connector_unreference(struct drm_connector *connector)
drm_connector_put(connector);
}
-/**
- * drm_connector_is_unregistered - has the connector been unregistered from
- * userspace?
- * @connector: DRM connector
- *
- * Checks whether or not @connector has been unregistered from userspace.
- *
- * Returns:
- * True if the connector was unregistered, false if the connector is
- * registered or has not yet been registered with userspace.
- */
-static inline bool
-drm_connector_is_unregistered(struct drm_connector *connector)
-{
- return READ_ONCE(connector->registration_state) ==
- DRM_CONNECTOR_UNREGISTERED;
-}
-
const char *drm_get_connector_status_name(enum drm_connector_status status);
const char *drm_get_subpixel_order_name(enum subpixel_order order);
const char *drm_get_dpms_name(int val);
@@ -1252,6 +1296,7 @@ int drm_connector_attach_scaling_mode_property(struct drm_connector *connector,
int drm_connector_attach_content_protection_property(
struct drm_connector *connector);
int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
+int drm_mode_create_colorspace_property(struct drm_connector *connector);
int drm_mode_create_content_type_property(struct drm_device *dev);
void drm_hdmi_avi_infoframe_content_type(struct hdmi_avi_infoframe *frame,
const struct drm_connector_state *conn_state);
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 05cc31b..c1078e5 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -627,6 +627,14 @@
# define DP_TEST_COUNT_MASK 0xf
#define DP_TEST_PHY_PATTERN 0x248
+# define DP_TEST_PHY_PATTERN_NONE 0x0
+# define DP_TEST_PHY_PATTERN_D10_2_NO_SCRAMBLING 0x1
+# define DP_TEST_PHY_PATTERN_SYMBOL_ERR_MEASUREMENT_CNT 0x2
+# define DP_TEST_PHY_PATTERN_PRBS7 0x3
+# define DP_TEST_PHY_PATTERN_80_BIT_CUSTOM_PATTERN 0x4
+# define DP_TEST_PHY_PATTERN_CP2520_PATTERN_1 0x5
+# define DP_TEST_PHY_PATTERN_CP2520_PATTERN_2 0x6
+# define DP_TEST_PHY_PATTERN_CP2520_PATTERN_3 0x7
#define DP_TEST_80BIT_CUSTOM_PATTERN_7_0 0x250
#define DP_TEST_80BIT_CUSTOM_PATTERN_15_8 0x251
#define DP_TEST_80BIT_CUSTOM_PATTERN_23_16 0x252
@@ -1143,6 +1151,7 @@ struct drm_dp_aux {
struct device *dev;
struct drm_crtc *crtc;
struct mutex hw_mutex;
+ struct mutex i2c_mutex;
struct work_struct crc_work;
u8 crc_count;
ssize_t (*transfer)(struct drm_dp_aux *aux,
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 0f7439f..864b2f8 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -27,6 +27,7 @@
#include <drm/drm_atomic.h>
struct drm_dp_mst_branch;
+struct drm_dp_mst_port;
/**
* struct drm_dp_vcpi - Virtual Channel Payload Identifier
@@ -42,6 +43,18 @@ struct drm_dp_vcpi {
int num_slots;
};
+struct drm_dp_mst_dsc_dpcd_cache {
+ bool valid;
+ bool use_parent_dpcd;
+ u8 dsc_dpcd[16];
+};
+
+struct drm_dp_mst_dsc_info {
+ bool dsc_support;
+ struct drm_dp_mst_port *dsc_port;
+ struct drm_dp_mst_dsc_dpcd_cache dsc_dpcd_cache;
+};
+
/**
* struct drm_dp_mst_port - MST port
* @kref: reference count for this port.
@@ -98,6 +111,10 @@ struct drm_dp_mst_port {
* audio-capable.
*/
bool has_audio;
+
+ bool fec_capable;
+
+ struct drm_dp_mst_dsc_info dsc_info;
};
/**
@@ -291,6 +308,7 @@ struct drm_dp_port_number_req {
struct drm_dp_enum_path_resources_ack_reply {
u8 port_number;
+ bool fec_capable;
u16 full_payload_bw_number;
u16 avail_payload_bw_number;
};
@@ -588,6 +606,10 @@ enum drm_connector_status drm_dp_mst_detect_port(struct drm_connector *connector
bool drm_dp_mst_port_has_audio(struct drm_dp_mst_topology_mgr *mgr,
struct drm_dp_mst_port *port);
+
+bool drm_dp_mst_has_fec(struct drm_dp_mst_topology_mgr *mgr,
+ struct drm_dp_mst_port *port);
+
struct edid *drm_dp_mst_get_edid(struct drm_connector *connector, struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port);
@@ -634,4 +656,24 @@ int drm_dp_atomic_release_vcpi_slots(struct drm_atomic_state *state,
int drm_dp_send_power_updown_phy(struct drm_dp_mst_topology_mgr *mgr,
struct drm_dp_mst_port *port, bool power_up);
+int drm_dp_mst_get_dsc_info(struct drm_dp_mst_topology_mgr *mgr,
+ struct drm_dp_mst_port *port,
+ struct drm_dp_mst_dsc_info *dsc_info);
+
+int drm_dp_mst_update_dsc_info(struct drm_dp_mst_topology_mgr *mgr,
+ struct drm_dp_mst_port *port,
+ struct drm_dp_mst_dsc_info *dsc_info);
+
+int drm_dp_send_dpcd_write(struct drm_dp_mst_topology_mgr *mgr,
+ struct drm_dp_mst_port *port,
+ int offset, int size, u8 *bytes);
+
+int drm_dp_send_dpcd_read(struct drm_dp_mst_topology_mgr *mgr,
+ struct drm_dp_mst_port *port,
+ int offset, int size, u8 *bytes);
+
+int drm_dp_mst_get_max_sdp_streams_supported(
+ struct drm_dp_mst_topology_mgr *mgr,
+ struct drm_dp_mst_port *port);
+
#endif
diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
index 152b305..12c76a5b 100644
--- a/include/drm/drm_drv.h
+++ b/include/drm/drm_drv.h
@@ -29,6 +29,7 @@
#include <linux/list.h>
#include <linux/irqreturn.h>
+#include <linux/uuid.h>
#include <drm/drm_device.h>
@@ -497,6 +498,15 @@ struct drm_driver {
struct vm_area_struct *vma);
/**
+ * @gem_prime_get_uuid
+ *
+ * get_uuid hook for GEM drivers. Retrieves the virtio uuid of the
+ * given GEM buffer.
+ */
+ int (*gem_prime_get_uuid)(struct drm_gem_object *obj,
+ uuid_t *uuid);
+
+ /**
* @dumb_create:
*
* This creates a new dumb buffer in the driver's backing storage manager (GEM,
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
index 53be104..7e39d59 100644
--- a/include/drm/drm_edid.h
+++ b/include/drm/drm_edid.h
@@ -221,6 +221,16 @@ struct detailed_timing {
DRM_EDID_YCBCR420_DC_36 | \
DRM_EDID_YCBCR420_DC_30)
+#define DRM_EDID_CLRMETRY_xvYCC_601 (1 << 0)
+#define DRM_EDID_CLRMETRY_xvYCC_709 (1 << 1)
+#define DRM_EDID_CLRMETRY_sYCC_601 (1 << 2)
+#define DRM_EDID_CLRMETRY_ADBYCC_601 (1 << 3)
+#define DRM_EDID_CLRMETRY_ADB_RGB (1 << 4)
+#define DRM_EDID_CLRMETRY_BT2020_CYCC (1 << 5)
+#define DRM_EDID_CLRMETRY_BT2020_YCC (1 << 6)
+#define DRM_EDID_CLRMETRY_BT2020_RGB (1 << 7)
+#define DRM_EDID_CLRMETRY_DCI_P3 (1 << 15)
+
/* ELD Header Block */
#define DRM_ELD_HEADER_BLOCK_SIZE 4
@@ -279,6 +289,11 @@ struct detailed_timing {
#define DRM_ELD_CEA_SAD(mnl, sad) (20 + (mnl) + 3 * (sad))
+/* HDMI 2.0 */
+#define DRM_EDID_3D_INDEPENDENT_VIEW (1 << 2)
+#define DRM_EDID_3D_DUAL_VIEW (1 << 1)
+#define DRM_EDID_3D_OSD_DISPARITY (1 << 0)
+
struct edid {
u8 header[8];
/* Vendor & product info */
diff --git a/include/drm/drm_fourcc.h b/include/drm/drm_fourcc.h
index f9c1584..fac831c 100644
--- a/include/drm/drm_fourcc.h
+++ b/include/drm/drm_fourcc.h
@@ -25,6 +25,28 @@
#include <linux/types.h>
#include <uapi/drm/drm_fourcc.h>
+/*
+ * DRM formats are little endian. Define host endian variants for the
+ * most common formats here, to reduce the #ifdefs needed in drivers.
+ *
+ * Note that the DRM_FORMAT_BIG_ENDIAN flag should only be used in
+ * case the format can't be specified otherwise, so we don't end up
+ * with two values describing the same format.
+ */
+#ifdef __BIG_ENDIAN
+# define DRM_FORMAT_HOST_XRGB1555 (DRM_FORMAT_XRGB1555 | \
+ DRM_FORMAT_BIG_ENDIAN)
+# define DRM_FORMAT_HOST_RGB565 (DRM_FORMAT_RGB565 | \
+ DRM_FORMAT_BIG_ENDIAN)
+# define DRM_FORMAT_HOST_XRGB8888 DRM_FORMAT_BGRX8888
+# define DRM_FORMAT_HOST_ARGB8888 DRM_FORMAT_BGRA8888
+#else
+# define DRM_FORMAT_HOST_XRGB1555 DRM_FORMAT_XRGB1555
+# define DRM_FORMAT_HOST_RGB565 DRM_FORMAT_RGB565
+# define DRM_FORMAT_HOST_XRGB8888 DRM_FORMAT_XRGB8888
+# define DRM_FORMAT_HOST_ARGB8888 DRM_FORMAT_ARGB8888
+#endif
+
struct drm_device;
struct drm_mode_fb_cmd2;
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index 4fef190..328f232 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -21,12 +21,18 @@ struct mipi_dsi_device;
#define MIPI_DSI_MSG_REQ_ACK BIT(0)
/* use Low Power Mode to transmit message */
#define MIPI_DSI_MSG_USE_LPM BIT(1)
+/* read mipi_dsi_msg.ctrl and unicast to only that ctrls */
+#define MIPI_DSI_MSG_UNICAST BIT(2)
+/* Stack all commands until lastcommand bit and trigger all in one go */
+#define MIPI_DSI_MSG_LASTCOMMAND BIT(3)
/**
* struct mipi_dsi_msg - read/write DSI buffer
* @channel: virtual channel id
* @type: payload data type
* @flags: flags controlling this message transmission
+ * @ctrl: ctrl index to transmit on
+ * @wait_ms: duration in ms to wait after message transmission
* @tx_len: length of @tx_buf
* @tx_buf: data to be written
* @rx_len: length of @rx_buf
@@ -36,6 +42,8 @@ struct mipi_dsi_msg {
u8 channel;
u8 type;
u16 flags;
+ u32 ctrl;
+ u32 wait_ms;
size_t tx_len;
const void *tx_buf;
@@ -134,6 +142,10 @@ struct mipi_dsi_host *of_find_mipi_dsi_host_by_node(struct device_node *node);
#define MIPI_DSI_CLOCK_NON_CONTINUOUS BIT(10)
/* transmit data in low power */
#define MIPI_DSI_MODE_LPM BIT(11)
+/* disable BLLP area */
+#define MIPI_DSI_MODE_VIDEO_BLLP BIT(12)
+/* disable EOF BLLP area */
+#define MIPI_DSI_MODE_VIDEO_EOF_BLLP BIT(13)
enum mipi_dsi_pixel_format {
MIPI_DSI_FMT_RGB888,
diff --git a/include/drm/drm_mode_object.h b/include/drm/drm_mode_object.h
index c34a3e8..6292fa6 100644
--- a/include/drm/drm_mode_object.h
+++ b/include/drm/drm_mode_object.h
@@ -60,7 +60,7 @@ struct drm_mode_object {
void (*free_cb)(struct kref *kref);
};
-#define DRM_OBJECT_MAX_PROPERTY 24
+#define DRM_OBJECT_MAX_PROPERTY 64
/**
* struct drm_object_properties - property tracking for &drm_mode_object
*/
diff --git a/include/drm/drm_panel.h b/include/drm/drm_panel.h
index 675aa1e..6907d31 100644
--- a/include/drm/drm_panel.h
+++ b/include/drm/drm_panel.h
@@ -27,6 +27,25 @@
#include <linux/err.h>
#include <linux/errno.h>
#include <linux/list.h>
+#include <linux/notifier.h>
+
+/* A hardware display blank change occurred */
+#define DRM_PANEL_EVENT_BLANK 0x01
+/* A hardware display blank early change occurred */
+#define DRM_PANEL_EARLY_EVENT_BLANK 0x02
+
+enum {
+ /* panel: power on */
+ DRM_PANEL_BLANK_UNBLANK,
+ /* panel: power off */
+ DRM_PANEL_BLANK_POWERDOWN,
+};
+
+struct drm_panel_notifier {
+ int refresh_rate;
+ void *data;
+ uint32_t id;
+};
struct device_node;
struct drm_connector;
@@ -94,6 +113,13 @@ struct drm_panel {
const struct drm_panel_funcs *funcs;
struct list_head list;
+
+ /**
+ * @nh:
+ *
+ * panel notifier list head
+ */
+ struct blocking_notifier_head nh;
};
/**
@@ -195,6 +221,13 @@ void drm_panel_remove(struct drm_panel *panel);
int drm_panel_attach(struct drm_panel *panel, struct drm_connector *connector);
int drm_panel_detach(struct drm_panel *panel);
+int drm_panel_notifier_register(struct drm_panel *panel,
+ struct notifier_block *nb);
+int drm_panel_notifier_unregister(struct drm_panel *panel,
+ struct notifier_block *nb);
+int drm_panel_notifier_call_chain(struct drm_panel *panel,
+ unsigned long val, void *v);
+
#if defined(CONFIG_OF) && defined(CONFIG_DRM_PANEL)
struct drm_panel *of_drm_find_panel(const struct device_node *np);
#else
diff --git a/include/drm/drm_prime.h b/include/drm/drm_prime.h
index d716d65..a6f60d52 100644
--- a/include/drm/drm_prime.h
+++ b/include/drm/drm_prime.h
@@ -70,6 +70,7 @@ struct dma_buf *drm_gem_prime_export(struct drm_device *dev,
int drm_gem_prime_handle_to_fd(struct drm_device *dev,
struct drm_file *file_priv, uint32_t handle, uint32_t flags,
int *prime_fd);
+int drm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma);
struct drm_gem_object *drm_gem_prime_import(struct drm_device *dev,
struct dma_buf *dma_buf);
@@ -103,5 +104,6 @@ int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, struct page **pages,
struct sg_table *drm_prime_pages_to_sg(struct page **pages, unsigned int nr_pages);
void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);
+int drm_gem_dmabuf_get_uuid(struct dma_buf *dma_buf, uuid_t *uuid);
#endif /* __DRM_PRIME_H__ */
diff --git a/include/linux/OWNERS b/include/linux/OWNERS
new file mode 100644
index 0000000..c88808c
--- /dev/null
+++ b/include/linux/OWNERS
@@ -0,0 +1,2 @@
+# include OWNERS from the authoritative android-mainline branch
+include kernel/common:android-mainline:/include/linux/OWNERS
diff --git a/include/linux/android_kabi.h b/include/linux/android_kabi.h
new file mode 100644
index 0000000..efa52953
--- /dev/null
+++ b/include/linux/android_kabi.h
@@ -0,0 +1,113 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * android_kabi.h - Android kernel abi abstraction header
+ *
+ * Copyright (C) 2020 Google, Inc.
+ *
+ * Heavily influenced by rh_kabi.h which came from the RHEL/CENTOS kernel and
+ * was:
+ * Copyright (c) 2014 Don Zickus
+ * Copyright (c) 2015-2018 Jiri Benc
+ * Copyright (c) 2015 Sabrina Dubroca, Hannes Frederic Sowa
+ * Copyright (c) 2016-2018 Prarit Bhargava
+ * Copyright (c) 2017 Paolo Abeni, Larry Woodman
+ *
+ * These macros are to be used to try to help alleviate future kernel abi
+ * changes that will occur as LTS and other kernel patches are merged into the
+ * tree during a period in which the kernel abi is wishing to not be disturbed.
+ *
+ * There are two times these macros should be used:
+ * - Before the kernel abi is "frozen"
+ * Padding can be added to various kernel structures that have in the past
+ * been known to change over time. That will give "room" in the structure
+ * that can then be used when fields are added so that the structure size
+ * will not change.
+ *
+ * - After the kernel abi is "frozen"
+ * If a structure's field is changed to a type that is identical in size to
+ * the previous type, it can be changed with a union macro
+ * If a field is added to a structure, the padding fields can be used to add
+ * the new field in a "safe" way.
+ */
+#ifndef _ANDROID_KABI_H
+#define _ANDROID_KABI_H
+
+#include <linux/compiler.h>
+
+/*
+ * Worker macros, don't use these, use the ones without a leading '_'
+ */
+
+#define __ANDROID_KABI_CHECK_SIZE_ALIGN(_orig, _new) \
+ union { \
+ _Static_assert(sizeof(struct{_new;}) <= sizeof(struct{_orig;}), \
+ __FILE__ ":" __stringify(__LINE__) ": " \
+ __stringify(_new) \
+ " is larger than " \
+ __stringify(_orig) ); \
+ _Static_assert(__alignof__(struct{_new;}) <= __alignof__(struct{_orig;}), \
+ __FILE__ ":" __stringify(__LINE__) ": " \
+ __stringify(_orig) \
+ " is not aligned the same as " \
+ __stringify(_new) ); \
+ }
+
+#ifdef __GENKSYMS__
+
+#define _ANDROID_KABI_REPLACE(_orig, _new) _orig
+
+#else
+
+#define _ANDROID_KABI_REPLACE(_orig, _new) \
+ union { \
+ _new; \
+ struct { \
+ _orig; \
+ } __UNIQUE_ID(android_kabi_hide); \
+ __ANDROID_KABI_CHECK_SIZE_ALIGN(_orig, _new); \
+ }
+
+#endif /* __GENKSYMS__ */
+
+#define _ANDROID_KABI_RESERVE(n) u64 android_kabi_reserved##n
+
+
+/*
+ * Macros to use _before_ the ABI is frozen
+ */
+
+/*
+ * ANDROID_KABI_RESERVE
+ * Reserve some "padding" in a structure for potential future use.
+ * This normally placed at the end of a structure.
+ * number: the "number" of the padding variable in the structure. Start with
+ * 1 and go up.
+ */
+#define ANDROID_KABI_RESERVE(number) _ANDROID_KABI_RESERVE(number)
+
+
+/*
+ * Macros to use _after_ the ABI is frozen
+ */
+
+/*
+ * ANDROID_KABI_USE(number, _new)
+ * Use a previous padding entry that was defined with ANDROID_KABI_RESERVE
+ * number: the previous "number" of the padding variable
+ * _new: the variable to use now instead of the padding variable
+ */
+#define ANDROID_KABI_USE(number, _new) \
+ _ANDROID_KABI_REPLACE(_ANDROID_KABI_RESERVE(number), _new)
+
+/*
+ * ANDROID_KABI_USE2(number, _new1, _new2)
+ * Use a previous padding entry that was defined with ANDROID_KABI_RESERVE for
+ * two new variables that fit into 64 bits. This is good for when you do not
+ * want to "burn" a 64bit padding variable for a smaller variable size if not
+ * needed.
+ */
+#define ANDROID_KABI_USE2(number, _new1, _new2) \
+ _ANDROID_KABI_REPLACE(_ANDROID_KABI_RESERVE(number), struct{ _new1; _new2; })
+
+
+#endif /* _ANDROID_KABI_H */
diff --git a/include/linux/arch_topology.h b/include/linux/arch_topology.h
index 2b70941..7e5a33e 100644
--- a/include/linux/arch_topology.h
+++ b/include/linux/arch_topology.h
@@ -9,6 +9,7 @@
#include <linux/percpu.h>
void topology_normalize_cpu_scale(void);
+int topology_update_cpu_topology(void);
struct device_node;
bool topology_parse_cpu_capacity(struct device_node *cpu_node, int cpu);
@@ -32,4 +33,12 @@ unsigned long topology_get_freq_scale(int cpu)
return per_cpu(freq_scale, cpu);
}
+DECLARE_PER_CPU(unsigned long, max_freq_scale);
+
+static inline
+unsigned long topology_get_max_freq_scale(struct sched_domain *sd, int cpu)
+{
+ return per_cpu(max_freq_scale, cpu);
+}
+
#endif /* _LINUX_ARCH_TOPOLOGY_H_ */
diff --git a/include/linux/backing-dev-defs.h b/include/linux/backing-dev-defs.h
index 65d4752..07e02d6 100644
--- a/include/linux/backing-dev-defs.h
+++ b/include/linux/backing-dev-defs.h
@@ -197,7 +197,6 @@ struct backing_dev_info {
wait_queue_head_t wb_waitq;
struct device *dev;
- char dev_name[64];
struct device *owner;
struct timer_list laptop_mode_wb_timer;
diff --git a/include/linux/backlight.h b/include/linux/backlight.h
index 0b589744..a5a50e7 100644
--- a/include/linux/backlight.h
+++ b/include/linux/backlight.h
@@ -13,6 +13,7 @@
#include <linux/fb.h>
#include <linux/mutex.h>
#include <linux/notifier.h>
+#include <linux/thermal.h>
/* Notes on locking:
*
@@ -106,6 +107,12 @@ struct backlight_device {
struct list_head entry;
struct device dev;
+ /* Backlight cooling device */
+ struct thermal_cooling_device *cdev;
+ /* Thermally limited max brightness */
+ int thermal_brightness_limit;
+ /* User brightness request */
+ int usr_brightness_req;
/* Multiple framebuffers may share one backlight device */
bool fb_bl_on[FB_MAX];
diff --git a/include/linux/bio-crypt-ctx.h b/include/linux/bio-crypt-ctx.h
new file mode 100644
index 0000000..9df113f
--- /dev/null
+++ b/include/linux/bio-crypt-ctx.h
@@ -0,0 +1,257 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2019 Google LLC
+ */
+#ifndef __LINUX_BIO_CRYPT_CTX_H
+#define __LINUX_BIO_CRYPT_CTX_H
+
+enum blk_crypto_mode_num {
+ BLK_ENCRYPTION_MODE_INVALID,
+ BLK_ENCRYPTION_MODE_AES_256_XTS,
+ BLK_ENCRYPTION_MODE_AES_128_CBC_ESSIV,
+ BLK_ENCRYPTION_MODE_ADIANTUM,
+ BLK_ENCRYPTION_MODE_MAX,
+};
+
+#ifdef CONFIG_BLOCK
+#include <linux/blk_types.h>
+
+#ifdef CONFIG_BLK_INLINE_ENCRYPTION
+
+#define BLK_CRYPTO_MAX_KEY_SIZE 64
+#define BLK_CRYPTO_MAX_WRAPPED_KEY_SIZE 128
+
+/**
+ * struct blk_crypto_key - an inline encryption key
+ * @crypto_mode: encryption algorithm this key is for
+ * @data_unit_size: the data unit size for all encryption/decryptions with this
+ * key. This is the size in bytes of each individual plaintext and
+ * ciphertext. This is always a power of 2. It might be e.g. the
+ * filesystem block size or the disk sector size.
+ * @data_unit_size_bits: log2 of data_unit_size
+ * @size: size of this key in bytes (determined by @crypto_mode)
+ * @hash: hash of this key, for keyslot manager use only
+ * @is_hw_wrapped: @raw points to a wrapped key to be used by an inline
+ * encryption hardware that accepts wrapped keys.
+ * @raw: the raw bytes of this key. Only the first @size bytes are used.
+ *
+ * A blk_crypto_key is immutable once created, and many bios can reference it at
+ * the same time. It must not be freed until all bios using it have completed.
+ */
+struct blk_crypto_key {
+ enum blk_crypto_mode_num crypto_mode;
+ unsigned int data_unit_size;
+ unsigned int data_unit_size_bits;
+ unsigned int size;
+
+ /*
+ * Hack to avoid breaking KMI: pack both hash and dun_bytes into the
+ * hash field...
+ */
+#define BLK_CRYPTO_KEY_HASH_MASK 0xffffff
+#define BLK_CRYPTO_KEY_DUN_BYTES_SHIFT 24
+ unsigned int hash;
+
+ bool is_hw_wrapped;
+ u8 raw[BLK_CRYPTO_MAX_WRAPPED_KEY_SIZE];
+};
+
+#define BLK_CRYPTO_MAX_IV_SIZE 32
+#define BLK_CRYPTO_DUN_ARRAY_SIZE (BLK_CRYPTO_MAX_IV_SIZE/sizeof(u64))
+
+static inline void
+blk_crypto_key_set_hash_and_dun_bytes(struct blk_crypto_key *key,
+ u32 hash, unsigned int dun_bytes)
+{
+ key->hash = (dun_bytes << BLK_CRYPTO_KEY_DUN_BYTES_SHIFT) |
+ (hash & BLK_CRYPTO_KEY_HASH_MASK);
+}
+
+static inline u32
+blk_crypto_key_hash(const struct blk_crypto_key *key)
+{
+ return key->hash & BLK_CRYPTO_KEY_HASH_MASK;
+}
+
+static inline unsigned int
+blk_crypto_key_dun_bytes(const struct blk_crypto_key *key)
+{
+ return key->hash >> BLK_CRYPTO_KEY_DUN_BYTES_SHIFT;
+}
+
+/**
+ * struct bio_crypt_ctx - an inline encryption context
+ * @bc_key: the key, algorithm, and data unit size to use
+ * @bc_keyslot: the keyslot that has been assigned for this key in @bc_ksm,
+ * or -1 if no keyslot has been assigned yet.
+ * @bc_dun: the data unit number (starting IV) to use
+ * @bc_ksm: the keyslot manager into which the key has been programmed with
+ * @bc_keyslot, or NULL if this key hasn't yet been programmed.
+ *
+ * A bio_crypt_ctx specifies that the contents of the bio will be encrypted (for
+ * write requests) or decrypted (for read requests) inline by the storage device
+ * or controller, or by the crypto API fallback.
+ */
+struct bio_crypt_ctx {
+ const struct blk_crypto_key *bc_key;
+ int bc_keyslot;
+
+ /* Data unit number */
+ u64 bc_dun[BLK_CRYPTO_DUN_ARRAY_SIZE];
+
+ /*
+ * The keyslot manager where the key has been programmed
+ * with keyslot.
+ */
+ struct keyslot_manager *bc_ksm;
+};
+
+int bio_crypt_ctx_init(void);
+
+struct bio_crypt_ctx *bio_crypt_alloc_ctx(gfp_t gfp_mask);
+
+void bio_crypt_free_ctx(struct bio *bio);
+
+static inline bool bio_has_crypt_ctx(struct bio *bio)
+{
+ return bio->bi_crypt_context;
+}
+
+void bio_crypt_clone(struct bio *dst, struct bio *src, gfp_t gfp_mask);
+
+static inline void bio_crypt_set_ctx(struct bio *bio,
+ const struct blk_crypto_key *key,
+ u64 dun[BLK_CRYPTO_DUN_ARRAY_SIZE],
+ gfp_t gfp_mask)
+{
+ struct bio_crypt_ctx *bc = bio_crypt_alloc_ctx(gfp_mask);
+
+ bc->bc_key = key;
+ memcpy(bc->bc_dun, dun, sizeof(bc->bc_dun));
+ bc->bc_ksm = NULL;
+ bc->bc_keyslot = -1;
+
+ bio->bi_crypt_context = bc;
+}
+
+void bio_crypt_ctx_release_keyslot(struct bio_crypt_ctx *bc);
+
+int bio_crypt_ctx_acquire_keyslot(struct bio_crypt_ctx *bc,
+ struct keyslot_manager *ksm);
+
+struct request;
+bool bio_crypt_should_process(struct request *rq);
+
+static inline bool bio_crypt_dun_is_contiguous(const struct bio_crypt_ctx *bc,
+ unsigned int bytes,
+ u64 next_dun[BLK_CRYPTO_DUN_ARRAY_SIZE])
+{
+ int i = 0;
+ unsigned int inc = bytes >> bc->bc_key->data_unit_size_bits;
+
+ while (i < BLK_CRYPTO_DUN_ARRAY_SIZE) {
+ if (bc->bc_dun[i] + inc != next_dun[i])
+ return false;
+ inc = ((bc->bc_dun[i] + inc) < inc);
+ i++;
+ }
+
+ return true;
+}
+
+
+static inline void bio_crypt_dun_increment(u64 dun[BLK_CRYPTO_DUN_ARRAY_SIZE],
+ unsigned int inc)
+{
+ int i = 0;
+
+ while (inc && i < BLK_CRYPTO_DUN_ARRAY_SIZE) {
+ dun[i] += inc;
+ inc = (dun[i] < inc);
+ i++;
+ }
+}
+
+static inline void bio_crypt_advance(struct bio *bio, unsigned int bytes)
+{
+ struct bio_crypt_ctx *bc = bio->bi_crypt_context;
+
+ if (!bc)
+ return;
+
+ bio_crypt_dun_increment(bc->bc_dun,
+ bytes >> bc->bc_key->data_unit_size_bits);
+}
+
+bool bio_crypt_ctx_compatible(struct bio *b_1, struct bio *b_2);
+
+bool bio_crypt_ctx_mergeable(struct bio *b_1, unsigned int b1_bytes,
+ struct bio *b_2);
+
+#else /* CONFIG_BLK_INLINE_ENCRYPTION */
+static inline int bio_crypt_ctx_init(void)
+{
+ return 0;
+}
+
+static inline bool bio_has_crypt_ctx(struct bio *bio)
+{
+ return false;
+}
+
+static inline void bio_crypt_clone(struct bio *dst, struct bio *src,
+ gfp_t gfp_mask) { }
+
+static inline void bio_crypt_free_ctx(struct bio *bio) { }
+
+static inline void bio_crypt_advance(struct bio *bio, unsigned int bytes) { }
+
+static inline bool bio_crypt_ctx_compatible(struct bio *b_1, struct bio *b_2)
+{
+ return true;
+}
+
+static inline bool bio_crypt_ctx_mergeable(struct bio *b_1,
+ unsigned int b1_bytes,
+ struct bio *b_2)
+{
+ return true;
+}
+
+#endif /* CONFIG_BLK_INLINE_ENCRYPTION */
+
+#if IS_ENABLED(CONFIG_DM_DEFAULT_KEY)
+static inline void bio_set_skip_dm_default_key(struct bio *bio)
+{
+ bio->bi_skip_dm_default_key = true;
+}
+
+static inline bool bio_should_skip_dm_default_key(const struct bio *bio)
+{
+ return bio->bi_skip_dm_default_key;
+}
+
+static inline void bio_clone_skip_dm_default_key(struct bio *dst,
+ const struct bio *src)
+{
+ dst->bi_skip_dm_default_key = src->bi_skip_dm_default_key;
+}
+#else /* CONFIG_DM_DEFAULT_KEY */
+static inline void bio_set_skip_dm_default_key(struct bio *bio)
+{
+}
+
+static inline bool bio_should_skip_dm_default_key(const struct bio *bio)
+{
+ return false;
+}
+
+static inline void bio_clone_skip_dm_default_key(struct bio *dst,
+ const struct bio *src)
+{
+}
+#endif /* !CONFIG_DM_DEFAULT_KEY */
+
+#endif /* CONFIG_BLOCK */
+
+#endif /* __LINUX_BIO_CRYPT_CTX_H */
diff --git a/include/linux/bio.h b/include/linux/bio.h
index c7433a2..eaa8476 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -22,6 +22,8 @@
#include <linux/mempool.h>
#include <linux/ioprio.h>
#include <linux/bug.h>
+#include <linux/bio-crypt-ctx.h>
+#include <linux/android_kabi.h>
#ifdef CONFIG_BLOCK
@@ -356,6 +358,10 @@ struct bio_integrity_payload {
struct work_struct bip_work; /* I/O completion */
struct bio_vec *bip_vec;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+
struct bio_vec bip_inline_vecs[0];/* embedded bvec array */
};
@@ -761,6 +767,11 @@ struct bio_set {
struct bio_list rescue_list;
struct work_struct rescue_work;
struct workqueue_struct *rescue_workqueue;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
struct biovec_slab {
diff --git a/include/linux/bits.h b/include/linux/bits.h
index 2b7b532c1..3cfc1bb 100644
--- a/include/linux/bits.h
+++ b/include/linux/bits.h
@@ -1,9 +1,11 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __LINUX_BITS_H
#define __LINUX_BITS_H
+
+#include <linux/const.h>
+#include <vdso/bits.h>
#include <asm/bitsperlong.h>
-#define BIT(nr) (1UL << (nr))
#define BIT_ULL(nr) (1ULL << (nr))
#define BIT_MASK(nr) (1UL << ((nr) % BITS_PER_LONG))
#define BIT_WORD(nr) ((nr) / BITS_PER_LONG)
diff --git a/include/linux/blk-crypto.h b/include/linux/blk-crypto.h
new file mode 100644
index 0000000..30a0b32
--- /dev/null
+++ b/include/linux/blk-crypto.h
@@ -0,0 +1,60 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2019 Google LLC
+ */
+
+#ifndef __LINUX_BLK_CRYPTO_H
+#define __LINUX_BLK_CRYPTO_H
+
+#include <linux/bio.h>
+
+#ifdef CONFIG_BLK_INLINE_ENCRYPTION
+
+int blk_crypto_submit_bio(struct bio **bio_ptr);
+
+bool blk_crypto_endio(struct bio *bio);
+
+int blk_crypto_init_key(struct blk_crypto_key *blk_key,
+ const u8 *raw_key, unsigned int raw_key_size,
+ bool is_hw_wrapped,
+ enum blk_crypto_mode_num crypto_mode,
+ unsigned int dun_bytes,
+ unsigned int data_unit_size);
+
+int blk_crypto_start_using_mode(enum blk_crypto_mode_num crypto_mode,
+ unsigned int dun_bytes,
+ unsigned int data_unit_size,
+ bool is_hw_wrapped_key,
+ struct request_queue *q);
+
+int blk_crypto_evict_key(struct request_queue *q,
+ const struct blk_crypto_key *key);
+
+#else /* CONFIG_BLK_INLINE_ENCRYPTION */
+
+static inline int blk_crypto_submit_bio(struct bio **bio_ptr)
+{
+ return 0;
+}
+
+static inline bool blk_crypto_endio(struct bio *bio)
+{
+ return true;
+}
+
+#endif /* CONFIG_BLK_INLINE_ENCRYPTION */
+
+#ifdef CONFIG_BLK_INLINE_ENCRYPTION_FALLBACK
+
+int blk_crypto_fallback_init(void);
+
+#else /* CONFIG_BLK_INLINE_ENCRYPTION_FALLBACK */
+
+static inline int blk_crypto_fallback_init(void)
+{
+ return 0;
+}
+
+#endif /* CONFIG_BLK_INLINE_ENCRYPTION_FALLBACK */
+
+#endif /* __LINUX_BLK_CRYPTO_H */
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index f6dfb30..211deb6 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -9,6 +9,7 @@
#include <linux/types.h>
#include <linux/bvec.h>
#include <linux/ktime.h>
+#include <linux/android_kabi.h>
struct bio_set;
struct bio;
@@ -18,6 +19,7 @@ struct block_device;
struct io_context;
struct cgroup_subsys_state;
typedef void (bio_end_io_t) (struct bio *);
+struct bio_crypt_ctx;
/*
* Block error status values. See block/blk-core:blk_errors for the details.
@@ -182,6 +184,14 @@ struct bio {
struct blkcg_gq *bi_blkg;
struct bio_issue bi_issue;
#endif
+
+#ifdef CONFIG_BLK_INLINE_ENCRYPTION
+ struct bio_crypt_ctx *bi_crypt_context;
+#if IS_ENABLED(CONFIG_DM_DEFAULT_KEY)
+ bool bi_skip_dm_default_key;
+#endif
+#endif
+
union {
#if defined(CONFIG_BLK_DEV_INTEGRITY)
struct bio_integrity_payload *bi_integrity; /* data integrity */
@@ -202,6 +212,11 @@ struct bio {
struct bio_set *bi_pool;
+ ktime_t bi_alloc_ts; /* for mm_event */
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+
/*
* We can inline a number of vecs at the end of the bio, to avoid
* double allocations for a small number of bio_vecs. This member
@@ -220,14 +235,15 @@ struct bio {
#define BIO_BOUNCED 3 /* bio is a bounce bio */
#define BIO_USER_MAPPED 4 /* contains user pages */
#define BIO_NULL_MAPPED 5 /* contains invalid user pages */
-#define BIO_QUIET 6 /* Make BIO Quiet */
-#define BIO_CHAIN 7 /* chained bio, ->bi_remaining in effect */
-#define BIO_REFFED 8 /* bio has elevated ->bi_cnt */
-#define BIO_THROTTLED 9 /* This bio has already been subjected to
+#define BIO_WORKINGSET 6 /* contains userspace workingset pages */
+#define BIO_QUIET 7 /* Make BIO Quiet */
+#define BIO_CHAIN 8 /* chained bio, ->bi_remaining in effect */
+#define BIO_REFFED 9 /* bio has elevated ->bi_cnt */
+#define BIO_THROTTLED 10 /* This bio has already been subjected to
* throttling rules. Don't do it again. */
-#define BIO_TRACE_COMPLETION 10 /* bio_endio() should trace the final completion
+#define BIO_TRACE_COMPLETION 11 /* bio_endio() should trace the final completion
* of this bio. */
-#define BIO_QUEUE_ENTERED 11 /* can use blk_queue_enter_live() */
+#define BIO_QUEUE_ENTERED 12 /* can use blk_queue_enter_live() */
/* See BVEC_POOL_OFFSET below before adding new flags */
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 209ba8e..b587a3bf 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -43,6 +43,7 @@ struct pr_ops;
struct rq_qos;
struct blk_queue_stats;
struct blk_stat_callback;
+struct keyslot_manager;
#define BLKDEV_MIN_RQ 4
#define BLKDEV_MAX_RQ 128 /* Default maximum */
@@ -574,6 +575,10 @@ struct request_queue {
* queue_lock internally, e.g. scsi_request_fn().
*/
unsigned int request_fn_active;
+#ifdef CONFIG_BLK_INLINE_ENCRYPTION
+ /* Inline crypto capabilities */
+ struct keyslot_manager *ksm;
+#endif
unsigned int rq_timeout;
int poll_nsec;
@@ -637,15 +642,12 @@ struct request_queue {
struct delayed_work requeue_work;
struct mutex sysfs_lock;
- struct mutex sysfs_dir_lock;
int bypass_depth;
atomic_t mq_freeze_depth;
-#if defined(CONFIG_BLK_DEV_BSG)
bsg_job_fn *bsg_job_fn;
struct bsg_class_device bsg_dev;
-#endif
#ifdef CONFIG_BLK_DEV_THROTTLING
/* Throttle data */
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 3b33373..e38efb3 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -814,6 +814,7 @@ extern const struct bpf_func_proto bpf_get_smp_processor_id_proto;
extern const struct bpf_func_proto bpf_get_numa_node_id_proto;
extern const struct bpf_func_proto bpf_tail_call_proto;
extern const struct bpf_func_proto bpf_ktime_get_ns_proto;
+extern const struct bpf_func_proto bpf_ktime_get_boot_ns_proto;
extern const struct bpf_func_proto bpf_get_current_pid_tgid_proto;
extern const struct bpf_func_proto bpf_get_current_uid_gid_proto;
extern const struct bpf_func_proto bpf_get_current_comm_proto;
diff --git a/include/linux/bsg.h b/include/linux/bsg.h
index dac37b6..b6c5549 100644
--- a/include/linux/bsg.h
+++ b/include/linux/bsg.h
@@ -6,7 +6,6 @@
struct request;
-#ifdef CONFIG_BLK_DEV_BSG
struct bsg_ops {
int (*check_proto)(struct sg_io_v4 *hdr);
int (*fill_hdr)(struct request *rq, struct sg_io_v4 *hdr,
@@ -22,6 +21,7 @@ struct bsg_class_device {
const struct bsg_ops *ops;
};
+#ifdef CONFIG_BLK_DEV_BSG
int bsg_register_queue(struct request_queue *q, struct device *parent,
const char *name, const struct bsg_ops *ops);
int bsg_scsi_register_queue(struct request_queue *q, struct device *parent);
diff --git a/include/linux/cfi.h b/include/linux/cfi.h
new file mode 100644
index 0000000..e27033d
--- /dev/null
+++ b/include/linux/cfi.h
@@ -0,0 +1,38 @@
+#ifndef _LINUX_CFI_H
+#define _LINUX_CFI_H
+
+#include <linux/stringify.h>
+
+#ifdef CONFIG_CFI_CLANG
+#ifdef CONFIG_MODULES
+
+typedef void (*cfi_check_fn)(uint64_t, void *, void *);
+
+/* Compiler-generated function in each module, and the kernel */
+#define CFI_CHECK_FN __cfi_check
+#define CFI_CHECK_FN_NAME __stringify(CFI_CHECK_FN)
+
+extern void CFI_CHECK_FN(uint64_t, void *, void *);
+
+#ifdef CONFIG_CFI_CLANG_SHADOW
+extern void cfi_module_add(struct module *mod, unsigned long min_addr,
+ unsigned long max_addr);
+
+extern void cfi_module_remove(struct module *mod, unsigned long min_addr,
+ unsigned long max_addr);
+#else
+static inline void cfi_module_add(struct module *mod, unsigned long min_addr,
+ unsigned long max_addr)
+{
+}
+
+static inline void cfi_module_remove(struct module *mod, unsigned long min_addr,
+ unsigned long max_addr)
+{
+}
+#endif /* CONFIG_CFI_CLANG_SHADOW */
+
+#endif /* CONFIG_MODULES */
+#endif /* CONFIG_CFI_CLANG */
+
+#endif /* _LINUX_CFI_H */
diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h
index f92264d..57ce109 100644
--- a/include/linux/cgroup-defs.h
+++ b/include/linux/cgroup-defs.h
@@ -20,6 +20,7 @@
#include <linux/u64_stats_sync.h>
#include <linux/workqueue.h>
#include <linux/bpf-cgroup.h>
+#include <linux/psi_types.h>
#ifdef CONFIG_CGROUPS
@@ -31,6 +32,7 @@ struct kernfs_node;
struct kernfs_ops;
struct kernfs_open_file;
struct seq_file;
+struct poll_table_struct;
#define MAX_CGROUP_TYPE_NAMELEN 32
#define MAX_CGROUP_ROOT_NAMELEN 64
@@ -63,6 +65,12 @@ enum {
* specified at mount time and thus is implemented here.
*/
CGRP_CPUSET_CLONE_CHILDREN,
+
+ /* Control group has to be frozen. */
+ CGRP_FREEZE,
+
+ /* Cgroup is frozen. */
+ CGRP_FROZEN,
};
/* cgroup_root->flags */
@@ -91,6 +99,7 @@ enum {
CFTYPE_NO_PREFIX = (1 << 3), /* (DON'T USE FOR NEW FILES) no subsys prefix */
CFTYPE_WORLD_WRITABLE = (1 << 4), /* (DON'T USE FOR NEW FILES) S_IWUGO */
+ CFTYPE_PRESSURE = (1 << 6), /* only if pressure feature is enabled */
/* internal flags, do not use outside cgroup core proper */
__CFTYPE_ONLY_ON_DFL = (1 << 16), /* only on default hierarchy */
@@ -315,6 +324,25 @@ struct cgroup_rstat_cpu {
struct cgroup *updated_next; /* NULL iff not on the list */
};
+struct cgroup_freezer_state {
+ /* Should the cgroup and its descendants be frozen. */
+ bool freeze;
+
+ /* Should the cgroup actually be frozen? */
+ int e_freeze;
+
+ /* Fields below are protected by css_set_lock */
+
+ /* Number of frozen descendant cgroups */
+ int nr_frozen_descendants;
+
+ /*
+ * Number of tasks, which are counted as frozen:
+ * frozen, SIGSTOPped, and PTRACEd.
+ */
+ int nr_frozen_tasks;
+};
+
struct cgroup {
/* self css with NULL ->ss, points back to this cgroup */
struct cgroup_subsys_state self;
@@ -442,12 +470,22 @@ struct cgroup {
/* used to schedule release agent */
struct work_struct release_agent_work;
+ /* used to track pressure stalls */
+ struct psi_group psi;
+
/* used to store eBPF programs */
struct cgroup_bpf bpf;
/* If there is block congestion on this cgroup. */
atomic_t congestion_count;
+ /* Used to store internal freezer state */
+ struct cgroup_freezer_state freezer;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+
/* ids of the ancestors at each level including self */
int ancestor_ids[];
};
@@ -575,6 +613,9 @@ struct cftype {
ssize_t (*write)(struct kernfs_open_file *of,
char *buf, size_t nbytes, loff_t off);
+ __poll_t (*poll)(struct kernfs_open_file *of,
+ struct poll_table_struct *pt);
+
#ifdef CONFIG_DEBUG_LOCK_ALLOC
struct lock_class_key lockdep_key;
#endif
@@ -755,9 +796,13 @@ struct sock_cgroup_data {
union {
#ifdef __LITTLE_ENDIAN
struct {
+#ifdef __GENKSYMS__
+ u8 is_data;
+#else
u8 is_data : 1;
u8 no_refcnt : 1;
u8 unused : 6;
+#endif
u8 padding;
u16 prioidx;
u32 classid;
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 02da4e1..0d9f214 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -130,6 +130,8 @@ void cgroup_free(struct task_struct *p);
int cgroup_init_early(void);
int cgroup_init(void);
+int cgroup_parse_float(const char *input, unsigned dec_shift, s64 *v);
+
/*
* Iteration helpers and macros.
*/
@@ -579,20 +581,11 @@ static inline bool cgroup_is_descendant(struct cgroup *cgrp,
static inline struct cgroup *cgroup_ancestor(struct cgroup *cgrp,
int ancestor_level)
{
- struct cgroup *ptr;
-
if (cgrp->level < ancestor_level)
return NULL;
-
- for (ptr = cgrp;
- ptr && ptr->level > ancestor_level;
- ptr = cgroup_parent(ptr))
- ;
-
- if (ptr && ptr->level == ancestor_level)
- return ptr;
-
- return NULL;
+ while (cgrp && cgrp->level > ancestor_level)
+ cgrp = cgroup_parent(cgrp);
+ return cgrp;
}
/**
@@ -669,6 +662,13 @@ static inline void pr_cont_cgroup_path(struct cgroup *cgrp)
pr_cont_kernfs_path(cgrp->kn);
}
+static inline struct psi_group *cgroup_psi(struct cgroup *cgrp)
+{
+ return &cgrp->psi;
+}
+
+bool cgroup_psi_enabled(void);
+
static inline void cgroup_init_kthreadd(void)
{
/*
@@ -723,6 +723,21 @@ static inline union kernfs_node_id *cgroup_get_kernfs_id(struct cgroup *cgrp)
return NULL;
}
+static inline struct cgroup *cgroup_parent(struct cgroup *cgrp)
+{
+ return NULL;
+}
+
+static inline struct psi_group *cgroup_psi(struct cgroup *cgrp)
+{
+ return NULL;
+}
+
+static inline bool cgroup_psi_enabled(void)
+{
+ return false;
+}
+
static inline bool task_under_cgroup_hierarchy(struct task_struct *task,
struct cgroup *ancestor)
{
@@ -886,4 +901,47 @@ static inline void put_cgroup_ns(struct cgroup_namespace *ns)
free_cgroup_ns(ns);
}
+#ifdef CONFIG_CGROUPS
+
+void cgroup_enter_frozen(void);
+void cgroup_leave_frozen(bool always_leave);
+void cgroup_update_frozen(struct cgroup *cgrp);
+void cgroup_freeze(struct cgroup *cgrp, bool freeze);
+void cgroup_freezer_migrate_task(struct task_struct *task, struct cgroup *src,
+ struct cgroup *dst);
+void cgroup_freezer_frozen_exit(struct task_struct *task);
+static inline bool cgroup_task_freeze(struct task_struct *task)
+{
+ bool ret;
+
+ if (task->flags & PF_KTHREAD)
+ return false;
+
+ rcu_read_lock();
+ ret = test_bit(CGRP_FREEZE, &task_dfl_cgroup(task)->flags);
+ rcu_read_unlock();
+
+ return ret;
+}
+
+static inline bool cgroup_task_frozen(struct task_struct *task)
+{
+ return task->frozen;
+}
+
+#else /* !CONFIG_CGROUPS */
+
+static inline void cgroup_enter_frozen(void) { }
+static inline void cgroup_leave_frozen(bool always_leave) { }
+static inline bool cgroup_task_freeze(struct task_struct *task)
+{
+ return false;
+}
+static inline bool cgroup_task_frozen(struct task_struct *task)
+{
+ return false;
+}
+
+#endif /* !CONFIG_CGROUPS */
+
#endif /* _LINUX_CGROUP_H */
diff --git a/include/linux/cgroup_subsys.h b/include/linux/cgroup_subsys.h
index acb77dcf..8996c09 100644
--- a/include/linux/cgroup_subsys.h
+++ b/include/linux/cgroup_subsys.h
@@ -21,6 +21,10 @@ SUBSYS(cpu)
SUBSYS(cpuacct)
#endif
+#if IS_ENABLED(CONFIG_SCHED_TUNE)
+SUBSYS(schedtune)
+#endif
+
#if IS_ENABLED(CONFIG_BLK_CGROUP)
SUBSYS(io)
#endif
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index d1b6d2c..8034963 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -14,6 +14,7 @@
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_clk.h>
+#include <linux/mutex.h>
#ifdef CONFIG_COMMON_CLK
@@ -40,6 +41,13 @@
#define CLK_OPS_PARENT_ENABLE BIT(12)
/* duty cycle call may be forwarded to the parent clock */
#define CLK_DUTY_CYCLE_PARENT BIT(13)
+#define CLK_DONT_HOLD_STATE BIT(14) /* Don't hold state */
+#define CLK_ENABLE_HAND_OFF BIT(15) /* enable clock when registered. */
+ /*
+ * hand-off enable_count & prepare_count
+ * to first consumer that enables clk
+ */
+#define CLK_IS_MEASURE BIT(16) /* measure clock */
struct clk;
struct clk_hw;
@@ -202,6 +210,18 @@ struct clk_duty {
* directory is provided as an argument. Called with
* prepare_lock held. Returns 0 on success, -EERROR otherwise.
*
+ * @set_flags: Set custom flags which deal with hardware specifics. Returns 0
+ * on success, -EERROR otherwise.
+ *
+ * @list_registers: Queries the hardware to get the current register contents.
+ * This callback is optional.
+ *
+ * @list_rate: On success, return the nth supported frequency for a given
+ * clock that is below rate_max. Return -ENXIO in case there is
+ * no frequency table.
+ *
+ * @bus_vote: Votes for bandwidth on certain config slaves to connect
+ * ports in order to gain access to clock controllers.
*
* The clk_enable/clk_disable and clk_prepare/clk_unprepare pairs allow
* implementations to split any work between atomic (enable) and sleepable
@@ -246,6 +266,12 @@ struct clk_ops {
struct clk_duty *duty);
void (*init)(struct clk_hw *hw);
void (*debug_init)(struct clk_hw *hw, struct dentry *dentry);
+ int (*set_flags)(struct clk_hw *hw, unsigned int flags);
+ void (*list_registers)(struct seq_file *f,
+ struct clk_hw *hw);
+ long (*list_rate)(struct clk_hw *hw, unsigned int n,
+ unsigned long rate_max);
+ void (*bus_vote)(struct clk_hw *hw, bool enable);
};
/**
@@ -257,15 +283,86 @@ struct clk_ops {
* @parent_names: array of string names for all possible parents
* @num_parents: number of possible parents
* @flags: framework-level hints and quirks
+ * @vdd_class: voltage scaling requirement class
+ * @rate_max: maximum clock rate in Hz supported at each voltage level
+ * @num_rate_max: number of maximum voltage level supported
+ * @bus_cl_id: client id registered with the bus driver used for bw votes
*/
struct clk_init_data {
const char *name;
const struct clk_ops *ops;
const char * const *parent_names;
- u8 num_parents;
+ unsigned int num_parents;
unsigned long flags;
+ struct clk_vdd_class *vdd_class;
+ unsigned long *rate_max;
+ int num_rate_max;
+ unsigned int bus_cl_id;
};
+struct regulator;
+
+/**
+ * struct clk_vdd_class - Voltage scaling class
+ * @class_name: name of the class
+ * @regulator: array of regulators
+ * @num_regulators: size of regulator array. Standard regulator APIs will be
+ used if this field > 0
+ * @set_vdd: function to call when applying a new voltage setting
+ * @vdd_uv: sorted 2D array of legal voltage settings. Indexed by level, then
+ regulator
+ * @level_votes: array of votes for each level
+ * @num_levels: specifies the size of level_votes array
+ * @skip_handoff: do not vote for the max possible voltage during init
+ * @cur_level: the currently set voltage level
+ * @lock: lock to protect this struct
+ */
+struct clk_vdd_class {
+ const char *class_name;
+ struct regulator **regulator;
+ int num_regulators;
+ int (*set_vdd)(struct clk_vdd_class *v_class, int level);
+ int *vdd_uv;
+ int *level_votes;
+ int num_levels;
+ bool skip_handoff;
+ unsigned long cur_level;
+ struct mutex lock;
+};
+
+#define DEFINE_VDD_CLASS(_name, _set_vdd, _num_levels) \
+ struct clk_vdd_class _name = { \
+ .class_name = #_name, \
+ .set_vdd = _set_vdd, \
+ .level_votes = (int [_num_levels]) {}, \
+ .num_levels = _num_levels, \
+ .cur_level = _num_levels, \
+ .lock = __MUTEX_INITIALIZER(_name.lock) \
+ }
+
+#define DEFINE_VDD_REGULATORS(_name, _num_levels, _num_regulators, _vdd_uv) \
+ struct clk_vdd_class _name = { \
+ .class_name = #_name, \
+ .vdd_uv = _vdd_uv, \
+ .regulator = (struct regulator * [_num_regulators]) {}, \
+ .num_regulators = _num_regulators, \
+ .level_votes = (int [_num_levels]) {}, \
+ .num_levels = _num_levels, \
+ .cur_level = _num_levels, \
+ .lock = __MUTEX_INITIALIZER(_name.lock) \
+ }
+
+#define DEFINE_VDD_REGS_INIT(_name, _num_regulators) \
+ struct clk_vdd_class _name = { \
+ .class_name = #_name, \
+ .regulator = (struct regulator * [_num_regulators]) {}, \
+ .num_regulators = _num_regulators, \
+ .lock = __MUTEX_INITIALIZER(_name.lock) \
+ }
+
+int clk_vote_vdd_level(struct clk_vdd_class *vdd_class, int level);
+int clk_unvote_vdd_level(struct clk_vdd_class *vdd_class, int level);
+
/**
* struct clk_hw - handle for traversing from a struct clk to its corresponding
* hardware-specific structure. struct clk_hw should be declared within struct
@@ -769,6 +866,7 @@ void devm_clk_unregister(struct device *dev, struct clk *clk);
void clk_hw_unregister(struct clk_hw *hw);
void devm_clk_hw_unregister(struct device *dev, struct clk_hw *hw);
+void clk_sync_state(struct device *dev);
/* helper functions */
const char *__clk_get_name(const struct clk *clk);
@@ -802,6 +900,11 @@ void clk_hw_reparent(struct clk_hw *hw, struct clk_hw *new_parent);
void clk_hw_set_rate_range(struct clk_hw *hw, unsigned long min_rate,
unsigned long max_rate);
+unsigned long clk_aggregate_rate(struct clk_hw *hw,
+ const struct clk_core *parent);
+int clk_vote_rate_vdd(struct clk_core *core, unsigned long rate);
+void clk_unvote_rate_vdd(struct clk_core *core, unsigned long rate);
+
static inline void __clk_hw_set_clk(struct clk_hw *dst, struct clk_hw *src)
{
dst->clk = src->clk;
diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h
index 3089189..2c3e23a 100644
--- a/include/linux/clocksource.h
+++ b/include/linux/clocksource.h
@@ -27,6 +27,8 @@ struct module;
#include <asm/clocksource.h>
#endif
+#include <vdso/clocksource.h>
+
/**
* struct clocksource - hardware abstraction for a free running counter
* Provides mostly state-free accessors to the underlying hardware.
diff --git a/include/linux/compiler-clang.h b/include/linux/compiler-clang.h
index 2d6e5e4..5bc9d73 100644
--- a/include/linux/compiler-clang.h
+++ b/include/linux/compiler-clang.h
@@ -15,12 +15,17 @@
/* all clang versions usable with the kernel support KASAN ABI version 5 */
#define KASAN_ABI_VERSION 5
-/* emulate gcc's __SANITIZE_ADDRESS__ flag */
-#if __has_feature(address_sanitizer)
-#define __SANITIZE_ADDRESS__
-#endif
+/* __no_sanitize_address has been already defined compiler-gcc.h */
+#undef __no_sanitize_address
-#define __no_sanitize_address __attribute__((no_sanitize("address")))
+#if __has_feature(address_sanitizer) || __has_feature(hwaddress_sanitizer)
+/* emulate gcc's __SANITIZE_ADDRESS__ flag */
+#define __SANITIZE_ADDRESS__
+#define __no_sanitize_address \
+ __attribute__((no_sanitize("address", "hwaddress")))
+#else
+#define __no_sanitize_address
+#endif
/*
* Not all versions of clang implement the the type-generic versions
@@ -42,3 +47,18 @@
#define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
#define __assume_aligned(a, ...) \
__attribute__((__assume_aligned__(a, ## __VA_ARGS__)))
+
+#ifdef CONFIG_LTO_CLANG
+#ifdef CONFIG_FTRACE_MCOUNT_RECORD
+#define __norecordmcount \
+ __attribute__((__section__(".text..ftrace")))
+#endif
+
+#define __nocfi __attribute__((no_sanitize("cfi")))
+#endif
+
+#if __has_feature(shadow_call_stack)
+# define __noscs __attribute__((__no_sanitize__("shadow-call-stack")))
+#else
+# define __noscs
+#endif
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index a80d6de..15aca9a 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -170,13 +170,19 @@
#define KASAN_ABI_VERSION 3
#endif
-#if GCC_VERSION >= 40902
/*
- * Tell the compiler that address safety instrumentation (KASAN)
- * should not be applied to that function.
- * Conflicts with inlining: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67368
+ * Older GCCs (< 5) don't support __has_attribute, so instead of checking
+ * __has_attribute(__no_sanitize_address__) do a GCC version check.
*/
+#ifndef __has_attribute
+# define __has_attribute(x) __GCC4_has_attribute_##x
+# define __GCC4_has_attribute___no_sanitize_address__ (__GNUC_MINOR__ >= 8)
+#endif
+
+#if __has_attribute(__no_sanitize_address__)
#define __no_sanitize_address __attribute__((no_sanitize_address))
+#else
+#define __no_sanitize_address
#endif
#if GCC_VERSION >= 50100
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 6a53300..c908703 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -268,7 +268,7 @@ void __read_once_size(const volatile void *p, void *res, int size)
* https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67368
* '__maybe_unused' allows us to avoid defined-but-not-used warnings.
*/
-# define __no_kasan_or_inline __no_sanitize_address __maybe_unused
+# define __no_kasan_or_inline __no_sanitize_address notrace __maybe_unused
#else
# define __no_kasan_or_inline __always_inline
#endif
diff --git a/include/linux/compiler_types.h b/include/linux/compiler_types.h
index c011003..44de154 100644
--- a/include/linux/compiler_types.h
+++ b/include/linux/compiler_types.h
@@ -144,6 +144,10 @@ struct ftrace_likely_data {
#define __visible
#endif
+#ifndef __noscs
+# define __noscs
+#endif
+
/*
* Assume alignment of return value.
*/
@@ -222,7 +226,7 @@ struct ftrace_likely_data {
#define __section(S) __attribute__((__section__(#S)))
-#ifdef CONFIG_ENABLE_MUST_CHECK
+#if defined(CONFIG_ENABLE_MUST_CHECK) && !defined(__GENKSYMS__)
#define __must_check __attribute__((warn_unused_result))
#else
#define __must_check
@@ -262,6 +266,14 @@ struct ftrace_likely_data {
# define __gnu_inline
#endif
+#ifndef __norecordmcount
+#define __norecordmcount
+#endif
+
+#ifndef __nocfi
+#define __nocfi
+#endif
+
/*
* Force always-inline if the user requests it so via the .config.
* GCC does not warn about unused static inline functions for
diff --git a/include/linux/const.h b/include/linux/const.h
index 7b55a55..81b8aae 100644
--- a/include/linux/const.h
+++ b/include/linux/const.h
@@ -1,9 +1,6 @@
#ifndef _LINUX_CONST_H
#define _LINUX_CONST_H
-#include <uapi/linux/const.h>
-
-#define UL(x) (_UL(x))
-#define ULL(x) (_ULL(x))
+#include <vdso/const.h>
#endif /* _LINUX_CONST_H */
diff --git a/include/linux/coresight-pmu.h b/include/linux/coresight-pmu.h
index a1a959b..b0e35ee 100644
--- a/include/linux/coresight-pmu.h
+++ b/include/linux/coresight-pmu.h
@@ -12,11 +12,13 @@
/* ETMv3.5/PTM's ETMCR config bit */
#define ETM_OPT_CYCACC 12
+#define ETM_OPT_CTXTID 14
#define ETM_OPT_TS 28
#define ETM_OPT_RETSTK 29
/* ETMv4 CONFIGR programming bits for the ETM OPTs */
#define ETM4_CFG_BIT_CYCACC 4
+#define ETM4_CFG_BIT_CTXTID 6
#define ETM4_CFG_BIT_TS 11
#define ETM4_CFG_BIT_RETSTK 12
diff --git a/include/linux/coresight.h b/include/linux/coresight.h
index d828a6e..d29f7ea 100644
--- a/include/linux/coresight.h
+++ b/include/linux/coresight.h
@@ -159,8 +159,9 @@ struct coresight_connection {
* @orphan: true if the component has connections that haven't been linked.
* @enable: 'true' if component is currently part of an active path.
* @activated: 'true' only if a _sink_ has been activated. A sink can be
- activated but not yet enabled. Enabling for a _sink_
- happens when a source has been selected for that it.
+ * activated but not yet enabled. Enabling for a _sink_
+ * appens when a source has been selected for that it.
+ * @ea: Device attribute for sink representation under PMU directory.
*/
struct coresight_device {
struct coresight_connection *conns;
@@ -173,7 +174,9 @@ struct coresight_device {
atomic_t *refcnt;
bool orphan;
bool enable; /* true only if configured as part of a path */
+ /* sink specific fields */
bool activated; /* true only if a sink is part of a path */
+ struct dev_ext_attribute *ea;
};
#define to_coresight_device(d) container_of(d, struct coresight_device, dev)
@@ -190,23 +193,16 @@ struct coresight_device {
* @disable: disables the sink.
* @alloc_buffer: initialises perf's ring buffer for trace collection.
* @free_buffer: release memory allocated in @get_config.
- * @set_buffer: initialises buffer mechanic before a trace session.
- * @reset_buffer: finalises buffer mechanic after a trace session.
* @update_buffer: update buffer pointers after a trace session.
*/
struct coresight_ops_sink {
- int (*enable)(struct coresight_device *csdev, u32 mode);
- void (*disable)(struct coresight_device *csdev);
- void *(*alloc_buffer)(struct coresight_device *csdev, int cpu,
- void **pages, int nr_pages, bool overwrite);
+ int (*enable)(struct coresight_device *csdev, u32 mode, void *data);
+ int (*disable)(struct coresight_device *csdev);
+ void *(*alloc_buffer)(struct coresight_device *csdev,
+ struct perf_event *event, void **pages,
+ int nr_pages, bool overwrite);
void (*free_buffer)(void *config);
- int (*set_buffer)(struct coresight_device *csdev,
- struct perf_output_handle *handle,
- void *sink_config);
- unsigned long (*reset_buffer)(struct coresight_device *csdev,
- struct perf_output_handle *handle,
- void *sink_config);
- void (*update_buffer)(struct coresight_device *csdev,
+ unsigned long (*update_buffer)(struct coresight_device *csdev,
struct perf_output_handle *handle,
void *sink_config);
};
@@ -270,6 +266,14 @@ extern int coresight_enable(struct coresight_device *csdev);
extern void coresight_disable(struct coresight_device *csdev);
extern int coresight_timeout(void __iomem *addr, u32 offset,
int position, int value);
+
+extern int coresight_claim_device(void __iomem *base);
+extern int coresight_claim_device_unlocked(void __iomem *base);
+
+extern void coresight_disclaim_device(void __iomem *base);
+extern void coresight_disclaim_device_unlocked(void __iomem *base);
+
+extern bool coresight_loses_context_with_cpu(struct device *dev);
#else
static inline struct coresight_device *
coresight_register(struct coresight_desc *desc) { return NULL; }
@@ -279,6 +283,23 @@ coresight_enable(struct coresight_device *csdev) { return -ENOSYS; }
static inline void coresight_disable(struct coresight_device *csdev) {}
static inline int coresight_timeout(void __iomem *addr, u32 offset,
int position, int value) { return 1; }
+static inline int coresight_claim_device_unlocked(void __iomem *base)
+{
+ return -EINVAL;
+}
+
+static inline int coresight_claim_device(void __iomem *base)
+{
+ return -EINVAL;
+}
+
+static inline void coresight_disclaim_device(void __iomem *base) {}
+static inline void coresight_disclaim_device_unlocked(void __iomem *base) {}
+
+static inline bool coresight_loses_context_with_cpu(struct device *dev)
+{
+ return false;
+}
#endif
#ifdef CONFIG_OF
diff --git a/include/linux/cpu_cooling.h b/include/linux/cpu_cooling.h
index de0dafb..e2bf937 100644
--- a/include/linux/cpu_cooling.h
+++ b/include/linux/cpu_cooling.h
@@ -30,6 +30,12 @@
struct cpufreq_policy;
+typedef int (*plat_mitig_t)(int cpu, u32 clip_freq);
+
+struct cpu_cooling_ops {
+ plat_mitig_t ceil_limit, floor_limit;
+};
+
#ifdef CONFIG_CPU_THERMAL
/**
* cpufreq_cooling_register - function to create cpufreq cooling device.
@@ -38,6 +44,10 @@ struct cpufreq_policy;
struct thermal_cooling_device *
cpufreq_cooling_register(struct cpufreq_policy *policy);
+struct thermal_cooling_device *
+cpufreq_platform_cooling_register(struct cpufreq_policy *policy,
+ struct cpu_cooling_ops *ops);
+
/**
* cpufreq_cooling_unregister - function to remove cpufreq cooling device.
* @cdev: thermal cooling device pointer.
@@ -51,6 +61,13 @@ cpufreq_cooling_register(struct cpufreq_policy *policy)
return ERR_PTR(-ENOSYS);
}
+static inline struct thermal_cooling_device *
+cpufreq_platform_cooling_register(struct cpufreq_policy *policy,
+ struct cpu_cooling_ops *ops)
+{
+ return NULL;
+}
+
static inline
void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev)
{
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 3361663..7aca9d0 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -931,11 +931,21 @@ static inline bool policy_has_boost_freq(struct cpufreq_policy *policy)
}
#endif
+#if defined(CONFIG_ENERGY_MODEL) && defined(CONFIG_CPU_FREQ_GOV_SCHEDUTIL)
+void sched_cpufreq_governor_change(struct cpufreq_policy *policy,
+ struct cpufreq_governor *old_gov);
+#else
+static inline void sched_cpufreq_governor_change(struct cpufreq_policy *policy,
+ struct cpufreq_governor *old_gov) { }
+#endif
+
extern void arch_freq_prepare_all(void);
extern unsigned int arch_freq_get_on_cpu(int cpu);
extern void arch_set_freq_scale(struct cpumask *cpus, unsigned long cur_freq,
unsigned long max_freq);
+extern void arch_set_max_freq_scale(struct cpumask *cpus,
+ unsigned long policy_max_freq);
/* the following are really really optional */
extern struct freq_attr cpufreq_freq_attr_scaling_available_freqs;
diff --git a/include/linux/cpufreq_times.h b/include/linux/cpufreq_times.h
new file mode 100644
index 0000000..0eb6dc9
--- /dev/null
+++ b/include/linux/cpufreq_times.h
@@ -0,0 +1,46 @@
+/* drivers/cpufreq/cpufreq_times.c
+ *
+ * Copyright (C) 2018 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _LINUX_CPUFREQ_TIMES_H
+#define _LINUX_CPUFREQ_TIMES_H
+
+#include <linux/cpufreq.h>
+#include <linux/pid.h>
+
+#ifdef CONFIG_CPU_FREQ_TIMES
+void cpufreq_task_times_init(struct task_struct *p);
+void cpufreq_task_times_alloc(struct task_struct *p);
+void cpufreq_task_times_exit(struct task_struct *p);
+int proc_time_in_state_show(struct seq_file *m, struct pid_namespace *ns,
+ struct pid *pid, struct task_struct *p);
+void cpufreq_acct_update_power(struct task_struct *p, u64 cputime);
+void cpufreq_times_create_policy(struct cpufreq_policy *policy);
+void cpufreq_times_record_transition(struct cpufreq_policy *policy,
+ unsigned int new_freq);
+void cpufreq_task_times_remove_uids(uid_t uid_start, uid_t uid_end);
+int single_uid_time_in_state_open(struct inode *inode, struct file *file);
+#else
+static inline void cpufreq_task_times_init(struct task_struct *p) {}
+static inline void cpufreq_task_times_alloc(struct task_struct *p) {}
+static inline void cpufreq_task_times_exit(struct task_struct *p) {}
+static inline void cpufreq_acct_update_power(struct task_struct *p,
+ u64 cputime) {}
+static inline void cpufreq_times_create_policy(struct cpufreq_policy *policy) {}
+static inline void cpufreq_times_record_transition(
+ struct cpufreq_policy *policy, unsigned int new_freq) {}
+static inline void cpufreq_task_times_remove_uids(uid_t uid_start,
+ uid_t uid_end) {}
+#endif /* CONFIG_CPU_FREQ_TIMES */
+#endif /* _LINUX_CPUFREQ_TIMES_H */
diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h
index b51da87..2a73593 100644
--- a/include/linux/cpuhotplug.h
+++ b/include/linux/cpuhotplug.h
@@ -59,7 +59,6 @@ enum cpuhp_state {
CPUHP_IOMMU_INTEL_DEAD,
CPUHP_LUSTRE_CFS_DEAD,
CPUHP_AP_ARM_CACHE_B15_RAC_DEAD,
- CPUHP_PADATA_DEAD,
CPUHP_WORKQUEUE_PREP,
CPUHP_POWER_NUMA_PREPARE,
CPUHP_HRTIMERS_PREPARE,
@@ -70,11 +69,14 @@ enum cpuhp_state {
CPUHP_SLAB_PREPARE,
CPUHP_MD_RAID5_PREPARE,
CPUHP_RCUTREE_PREP,
+ CPUHP_HYP_CORE_CTL_ISOLATION_DEAD,
+ CPUHP_CORE_CTL_ISOLATION_DEAD,
CPUHP_CPUIDLE_COUPLED_PREPARE,
CPUHP_POWERPC_PMAC_PREPARE,
CPUHP_POWERPC_MMU_CTX_PREPARE,
CPUHP_XEN_PREPARE,
CPUHP_XEN_EVTCHN_PREPARE,
+ CPUHP_QCOM_CPUFREQ_PREPARE,
CPUHP_ARM_SHMOBILE_SCU_PREPARE,
CPUHP_SH_SH3X_PREPARE,
CPUHP_NET_FLOW_PREPARE,
@@ -97,6 +99,7 @@ enum cpuhp_state {
CPUHP_AP_SCHED_STARTING,
CPUHP_AP_RCUTREE_DYING,
CPUHP_AP_IRQ_GIC_STARTING,
+ CPUHP_AP_EDAC_PMU_STARTING,
CPUHP_AP_IRQ_HIP04_STARTING,
CPUHP_AP_IRQ_ARMADA_XP_STARTING,
CPUHP_AP_IRQ_BCM2836_STARTING,
@@ -119,11 +122,12 @@ enum cpuhp_state {
CPUHP_AP_ARM_L2X0_STARTING,
CPUHP_AP_EXYNOS4_MCT_TIMER_STARTING,
CPUHP_AP_ARM_ARCH_TIMER_STARTING,
- CPUHP_AP_OMAP_DM_TIMER_STARTING,
CPUHP_AP_ARM_GLOBAL_TIMER_STARTING,
CPUHP_AP_JCORE_TIMER_STARTING,
CPUHP_AP_ARM_TWD_STARTING,
CPUHP_AP_QCOM_TIMER_STARTING,
+ CPUHP_AP_QCOM_CPUFREQ_STARTING,
+ CPUHP_AP_QCOM_SLEEP_STARTING,
CPUHP_AP_ARMADA_TIMER_STARTING,
CPUHP_AP_MARCO_TIMER_STARTING,
CPUHP_AP_MIPS_GIC_TIMER_STARTING,
@@ -136,6 +140,8 @@ enum cpuhp_state {
/* Must be the last timer callback */
CPUHP_AP_DUMMY_TIMER_STARTING,
CPUHP_AP_ARM_XEN_STARTING,
+ CPUHP_AP_ARM_SAVE_RESTORE_CORESIGHT4_STARTING,
+ CPUHP_AP_ARM_MM_CORESIGHT4_STARTING,
CPUHP_AP_ARM_CORESIGHT_STARTING,
CPUHP_AP_ARM64_ISNDEP_STARTING,
CPUHP_AP_SMPCFD_DYING,
@@ -172,6 +178,7 @@ enum cpuhp_state {
CPUHP_AP_WATCHDOG_ONLINE,
CPUHP_AP_WORKQUEUE_ONLINE,
CPUHP_AP_RCUTREE_ONLINE,
+ CPUHP_AP_NOTIFY_PERF_ONLINE,
CPUHP_AP_BASE_CACHEINFO_ONLINE,
CPUHP_AP_ONLINE_DYN,
CPUHP_AP_ONLINE_DYN_END = CPUHP_AP_ONLINE_DYN + 30,
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index 317aeca..8ccffba8 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -220,7 +220,7 @@ static inline void cpuidle_use_deepest_state(bool enable)
#endif
/* kernel/sched/idle.c */
-extern void sched_idle_set_state(struct cpuidle_state *idle_state);
+extern void sched_idle_set_state(struct cpuidle_state *idle_state, int index);
extern void default_idle_call(void);
#ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 02b1b40..ee2d177 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -13,6 +13,7 @@
#include <linux/lockref.h>
#include <linux/stringhash.h>
#include <linux/wait.h>
+#include <linux/android_kabi.h>
struct path;
struct vfsmount;
@@ -117,6 +118,9 @@ struct dentry {
struct hlist_bl_node d_in_lookup_hash; /* only for in-lookup ones */
struct rcu_head d_rcu;
} d_u;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
} __randomize_layout;
/*
@@ -146,6 +150,12 @@ struct dentry_operations {
struct vfsmount *(*d_automount)(struct path *);
int (*d_manage)(const struct path *, bool);
struct dentry *(*d_real)(struct dentry *, const struct inode *);
+
+ ANDROID_KABI_USE(1, void (*d_canonical_path)(const struct path *,
+ struct path *));
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
} ____cacheline_aligned;
/*
diff --git a/include/linux/delayacct.h b/include/linux/delayacct.h
index 31c865d..577d1b2 100644
--- a/include/linux/delayacct.h
+++ b/include/linux/delayacct.h
@@ -57,7 +57,12 @@ struct task_delay_info {
u64 freepages_start;
u64 freepages_delay; /* wait for memory reclaim */
+
+ u64 thrashing_start;
+ u64 thrashing_delay; /* wait for thrashing page */
+
u32 freepages_count; /* total count of memory reclaim */
+ u32 thrashing_count; /* total count of thrash waits */
};
#endif
@@ -76,6 +81,8 @@ extern int __delayacct_add_tsk(struct taskstats *, struct task_struct *);
extern __u64 __delayacct_blkio_ticks(struct task_struct *);
extern void __delayacct_freepages_start(void);
extern void __delayacct_freepages_end(void);
+extern void __delayacct_thrashing_start(void);
+extern void __delayacct_thrashing_end(void);
static inline int delayacct_is_task_waiting_on_io(struct task_struct *p)
{
@@ -156,6 +163,18 @@ static inline void delayacct_freepages_end(void)
__delayacct_freepages_end();
}
+static inline void delayacct_thrashing_start(void)
+{
+ if (current->delays)
+ __delayacct_thrashing_start();
+}
+
+static inline void delayacct_thrashing_end(void)
+{
+ if (current->delays)
+ __delayacct_thrashing_end();
+}
+
#else
static inline void delayacct_set_flag(int flag)
{}
@@ -182,6 +201,10 @@ static inline void delayacct_freepages_start(void)
{}
static inline void delayacct_freepages_end(void)
{}
+static inline void delayacct_thrashing_start(void)
+{}
+static inline void delayacct_thrashing_end(void)
+{}
#endif /* CONFIG_TASK_DELAY_ACCT */
diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h
index 3aae5b3..2151a06 100644
--- a/include/linux/devfreq.h
+++ b/include/linux/devfreq.h
@@ -149,6 +149,7 @@ struct devfreq {
struct list_head node;
struct mutex lock;
+ struct mutex event_lock;
struct device dev;
struct devfreq_dev_profile *profile;
const struct devfreq_governor *governor;
@@ -174,6 +175,7 @@ struct devfreq {
unsigned long last_stat_updated;
struct srcu_notifier_head transition_notifier_list;
+ bool dev_suspended;
};
struct devfreq_freqs {
@@ -236,6 +238,9 @@ extern struct devfreq *devfreq_get_devfreq_by_phandle(struct device *dev,
* the governor may consider slowing the frequency down.
* Specify 0 to use the default. Valid value = 0 to 100.
* downdifferential < upthreshold must hold.
+ * @simple_scaling: Setting this flag will scale the clocks up only if the
+ * load is above @upthreshold and will scale the clocks
+ * down only if the load is below @downdifferential.
*
* If the fed devfreq_simple_ondemand_data pointer is NULL to the governor,
* the governor uses the default values.
@@ -243,6 +248,7 @@ extern struct devfreq *devfreq_get_devfreq_by_phandle(struct device *dev,
struct devfreq_simple_ondemand_data {
unsigned int upthreshold;
unsigned int downdifferential;
+ unsigned int simple_scaling;
};
#endif
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index cde6708..703dd52 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -317,9 +317,10 @@ struct dm_target {
bool split_discard_bios:1;
/*
- * Set if we need to limit the number of in-flight bios when swapping.
+ * Set if inline crypto capabilities from this target's underlying
+ * device(s) can be exposed via the device-mapper device.
*/
- bool limit_swap_bios:1;
+ bool may_passthrough_inline_crypto:1;
};
/* Each target can link one of these into the table */
diff --git a/include/linux/device.h b/include/linux/device.h
index 37e359d..6b0e344 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -26,6 +26,7 @@
#include <linux/uidgid.h>
#include <linux/gfp.h>
#include <linux/overflow.h>
+#include <linux/android_kabi.h>
#include <asm/device.h>
struct device;
@@ -79,6 +80,13 @@ extern void bus_remove_file(struct bus_type *, struct bus_attribute *);
* that generate uevents to add the environment variables.
* @probe: Called when a new device or driver add to this bus, and callback
* the specific driver's probe to initial the matched device.
+ * @sync_state: Called to sync device state to software state after all the
+ * state tracking consumers linked to this device (present at
+ * the time of late_initcall) have successfully bound to a
+ * driver. If the device has no consumers, this function will
+ * be called at late_initcall_sync level. If the device has
+ * consumers that are never bound to a driver, this function
+ * will never get called until they do.
* @remove: Called when a device removed from this bus.
* @shutdown: Called at shut-down time to quiesce the device.
*
@@ -122,6 +130,7 @@ struct bus_type {
int (*match)(struct device *dev, struct device_driver *drv);
int (*uevent)(struct device *dev, struct kobj_uevent_env *env);
int (*probe)(struct device *dev);
+ void (*sync_state)(struct device *dev);
int (*remove)(struct device *dev);
void (*shutdown)(struct device *dev);
@@ -143,6 +152,11 @@ struct bus_type {
struct lock_class_key lock_key;
bool need_parent_lock;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
extern int __must_check bus_register(struct bus_type *bus);
@@ -251,6 +265,13 @@ enum probe_type {
* @probe: Called to query the existence of a specific device,
* whether this driver can work with it, and bind the driver
* to a specific device.
+ * @sync_state: Called to sync device state to software state after all the
+ * state tracking consumers linked to this device (present at
+ * the time of late_initcall) have successfully bound to a
+ * driver. If the device has no consumers, this function will
+ * be called at late_initcall_sync level. If the device has
+ * consumers that are never bound to a driver, this function
+ * will never get called until they do.
* @remove: Called when the device is removed from the system to
* unbind a device from this driver.
* @shutdown: Called at shut-down time to quiesce the device.
@@ -288,6 +309,7 @@ struct device_driver {
const struct acpi_device_id *acpi_match_table;
int (*probe) (struct device *dev);
+ void (*sync_state)(struct device *dev);
int (*remove) (struct device *dev);
void (*shutdown) (struct device *dev);
int (*suspend) (struct device *dev, pm_message_t state);
@@ -298,6 +320,11 @@ struct device_driver {
void (*coredump) (struct device *dev);
struct driver_private *p;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
@@ -424,6 +451,11 @@ struct class {
const struct dev_pm_ops *pm;
struct subsys_private *p;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
struct class_dev_iter {
@@ -755,11 +787,17 @@ struct device_dma_parameters {
/**
* struct device_connection - Device Connection Descriptor
+ * @fwnode: The device node of the connected device
* @endpoint: The names of the two devices connected together
* @id: Unique identifier for the connection
* @list: List head, private, for internal use only
+ *
+ * NOTE: @fwnode is not used together with @endpoint. @fwnode is used when
+ * platform firmware defines the connection. When the connection is registered
+ * with device_connection_add() @endpoint is used instead.
*/
struct device_connection {
+ struct fwnode_handle *fwnode;
const char *endpoint[2];
const char *id;
struct list_head list;
@@ -827,6 +865,7 @@ enum device_link_state {
* AUTOREMOVE_SUPPLIER: Remove the link automatically on supplier driver unbind.
* AUTOPROBE_CONSUMER: Probe consumer driver automatically after supplier binds.
* MANAGED: The core tracks presence of supplier/consumer drivers (internal).
+ * SYNC_STATE_ONLY: Link only affects sync_state() behavior.
*/
#define DL_FLAG_STATELESS BIT(0)
#define DL_FLAG_AUTOREMOVE_CONSUMER BIT(1)
@@ -835,6 +874,7 @@ enum device_link_state {
#define DL_FLAG_AUTOREMOVE_SUPPLIER BIT(4)
#define DL_FLAG_AUTOPROBE_CONSUMER BIT(5)
#define DL_FLAG_MANAGED BIT(6)
+#define DL_FLAG_SYNC_STATE_ONLY BIT(7)
/**
* struct device_link - Device link representation.
@@ -861,6 +901,11 @@ struct device_link {
struct rcu_head rcu_head;
#endif
bool supplier_preactivated; /* Owned by consumer probe. */
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
/**
@@ -881,12 +926,24 @@ enum dl_dev_state {
* struct dev_links_info - Device data related to device links.
* @suppliers: List of links to supplier devices.
* @consumers: List of links to consumer devices.
+ * @needs_suppliers: Hook to global list of devices waiting for suppliers.
+ * @defer_sync: Hook to global list of devices that have deferred sync_state.
+ * @need_for_probe: If needs_suppliers is on a list, this indicates if the
+ * suppliers are needed for probe or not.
* @status: Driver status information.
*/
struct dev_links_info {
struct list_head suppliers;
struct list_head consumers;
+ struct list_head needs_suppliers;
+ struct list_head defer_sync;
+ bool need_for_probe;
enum dl_dev_state status;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
/**
@@ -958,6 +1015,9 @@ struct dev_links_info {
* @offline: Set after successful invocation of bus type's .offline().
* @of_node_reused: Set if the device-tree node is shared with an ancestor
* device.
+ * @state_synced: The hardware state of this device has been synced to match
+ * the software state of this device by calling the driver/bus
+ * sync_state() callback.
*
* At the lowest level, every device in a Linux system is represented by an
* instance of struct device. The device structure contains the information
@@ -998,7 +1058,6 @@ struct device {
struct dev_pin_info *pins;
#endif
#ifdef CONFIG_GENERIC_MSI_IRQ
- raw_spinlock_t msi_lock;
struct list_head msi_list;
#endif
@@ -1025,6 +1084,7 @@ struct device {
struct cma *cma_area; /* contiguous memory area for dma
allocations */
#endif
+ struct removed_region *removed_mem;
/* arch specific additions */
struct dev_archdata archdata;
@@ -1048,6 +1108,16 @@ struct device {
bool offline_disabled:1;
bool offline:1;
bool of_node_reused:1;
+ bool state_synced:1;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
+ ANDROID_KABI_RESERVE(5);
+ ANDROID_KABI_RESERVE(6);
+ ANDROID_KABI_RESERVE(7);
+ ANDROID_KABI_RESERVE(8);
};
static inline struct device *kobj_to_dev(struct kobject *kobj)
@@ -1152,6 +1222,16 @@ static inline bool device_async_suspend_enabled(struct device *dev)
return !!dev->power.async_suspend;
}
+static inline bool device_pm_not_required(struct device *dev)
+{
+ return dev->power.no_pm;
+}
+
+static inline void device_set_pm_not_required(struct device *dev)
+{
+ dev->power.no_pm = true;
+}
+
static inline void dev_pm_syscore_device(struct device *dev, bool val)
{
#ifdef CONFIG_PM_SLEEP
@@ -1201,6 +1281,17 @@ static inline struct device_node *dev_of_node(struct device *dev)
return dev->of_node;
}
+static inline bool dev_has_sync_state(struct device *dev)
+{
+ if (!dev)
+ return false;
+ if (dev->driver && dev->driver->sync_state)
+ return true;
+ if (dev->bus && dev->bus->sync_state)
+ return true;
+ return false;
+}
+
void driver_init(void);
/*
@@ -1363,6 +1454,8 @@ struct device_link *device_link_add(struct device *consumer,
struct device *supplier, u32 flags);
void device_link_del(struct device_link *link);
void device_link_remove(void *consumer, struct device *supplier);
+void device_links_supplier_sync_state_pause(void);
+void device_links_supplier_sync_state_resume(void);
#ifndef dev_fmt
#define dev_fmt(fmt) fmt
diff --git a/include/linux/dma-buf.h b/include/linux/dma-buf.h
index 58725f8..4e5d0ea 100644
--- a/include/linux/dma-buf.h
+++ b/include/linux/dma-buf.h
@@ -188,6 +188,68 @@ struct dma_buf_ops {
int (*begin_cpu_access)(struct dma_buf *, enum dma_data_direction);
/**
+ * @begin_cpu_access_umapped:
+ *
+ * This is called as a result of the DMA_BUF_IOCTL_SYNC IOCTL being
+ * called with the DMA_BUF_SYNC_START and DMA_BUF_SYNC_USER_MAPPED flags
+ * set. It allows the exporter to ensure that the mmap(ed) portions of
+ * the buffer are available for cpu access - the exporter might need to
+ * allocate or swap-in and pin the backing storage.
+ * The exporter also needs to ensure that cpu access is
+ * coherent for the access direction. The direction can be used by the
+ * exporter to optimize the cache flushing, i.e. access with a different
+ * direction (read instead of write) might return stale or even bogus
+ * data (e.g. when the exporter needs to copy the data to temporary
+ * storage).
+ *
+ * This callback is optional.
+ *
+ * Returns:
+ *
+ * 0 on success or a negative error code on failure. This can for
+ * example fail when the backing storage can't be allocated. Can also
+ * return -ERESTARTSYS or -EINTR when the call has been interrupted and
+ * needs to be restarted.
+ */
+ int (*begin_cpu_access_umapped)(struct dma_buf *dmabuf,
+ enum dma_data_direction);
+
+ /**
+ * @begin_cpu_access_partial:
+ *
+ * This is called from dma_buf_begin_cpu_access_partial() and allows the
+ * exporter to ensure that the memory specified in the range is
+ * available for cpu access - the exporter might need to allocate or
+ * swap-in and pin the backing storage.
+ * The exporter also needs to ensure that cpu access is
+ * coherent for the access direction. The direction can be used by the
+ * exporter to optimize the cache flushing, i.e. access with a different
+ * direction (read instead of write) might return stale or even bogus
+ * data (e.g. when the exporter needs to copy the data to temporary
+ * storage).
+ *
+ * This callback is optional.
+ *
+ * FIXME: This is both called through the DMA_BUF_IOCTL_SYNC command
+ * from userspace (where storage shouldn't be pinned to avoid handing
+ * de-factor mlock rights to userspace) and for the kernel-internal
+ * users of the various kmap interfaces, where the backing storage must
+ * be pinned to guarantee that the atomic kmap calls can succeed. Since
+ * there's no in-kernel users of the kmap interfaces yet this isn't a
+ * real problem.
+ *
+ * Returns:
+ *
+ * 0 on success or a negative error code on failure. This can for
+ * example fail when the backing storage can't be allocated. Can also
+ * return -ERESTARTSYS or -EINTR when the call has been interrupted and
+ * needs to be restarted.
+ */
+ int (*begin_cpu_access_partial)(struct dma_buf *dmabuf,
+ enum dma_data_direction,
+ unsigned int offset, unsigned int len);
+
+ /**
* @end_cpu_access:
*
* This is called from dma_buf_end_cpu_access() when the importer is
@@ -205,6 +267,51 @@ struct dma_buf_ops {
* to be restarted.
*/
int (*end_cpu_access)(struct dma_buf *, enum dma_data_direction);
+
+ /**
+ * @end_cpu_access_umapped:
+ *
+ * This is called as result a of the DMA_BUF_IOCTL_SYNC IOCTL being
+ * called with the DMA_BUF_SYNC_END and DMA_BUF_SYNC_USER_MAPPED flags
+ * set. The exporter can use to limit cache flushing to only those parts
+ * of the buffer which are mmap(ed) and to unpin any resources pinned in
+ * @begin_cpu_access_umapped.
+ * The result of any dma_buf kmap calls after end_cpu_access_umapped is
+ * undefined.
+ *
+ * This callback is optional.
+ *
+ * Returns:
+ *
+ * 0 on success or a negative error code on failure. Can return
+ * -ERESTARTSYS or -EINTR when the call has been interrupted and needs
+ * to be restarted.
+ */
+ int (*end_cpu_access_umapped)(struct dma_buf *dmabuf,
+ enum dma_data_direction);
+
+ /**
+ * @end_cpu_access_partial:
+ *
+ * This is called from dma_buf_end_cpu_access_partial() when the
+ * importer is done accessing the CPU. The exporter can use to limit
+ * cache flushing to only the range specefied and to unpin any
+ * resources pinned in @begin_cpu_access_umapped.
+ * The result of any dma_buf kmap calls after end_cpu_access_partial is
+ * undefined.
+ *
+ * This callback is optional.
+ *
+ * Returns:
+ *
+ * 0 on success or a negative error code on failure. Can return
+ * -ERESTARTSYS or -EINTR when the call has been interrupted and needs
+ * to be restarted.
+ */
+ int (*end_cpu_access_partial)(struct dma_buf *dmabuf,
+ enum dma_data_direction,
+ unsigned int offset, unsigned int len);
+
void *(*map)(struct dma_buf *, unsigned long);
void (*unmap)(struct dma_buf *, unsigned long, void *);
@@ -247,18 +354,62 @@ struct dma_buf_ops {
void *(*vmap)(struct dma_buf *);
void (*vunmap)(struct dma_buf *, void *vaddr);
+
+ /**
+ * @get_uuid
+ *
+ * This is called by dma_buf_get_uuid to get the UUID which identifies
+ * the buffer to virtio devices.
+ *
+ * This callback is optional.
+ *
+ * Returns:
+ *
+ * 0 on success or a negative error code on failure. On success uuid
+ * will be populated with the buffer's UUID.
+ */
+ int (*get_uuid)(struct dma_buf *dmabuf, uuid_t *uuid);
+
+ /**
+ * @get_flags:
+ *
+ * This is called by dma_buf_get_flags and is used to get the buffer's
+ * flags.
+ * This callback is optional.
+ *
+ * Returns:
+ *
+ * 0 on success or a negative error code on failure. On success flags
+ * will be populated with the buffer's flags.
+ */
+ int (*get_flags)(struct dma_buf *dmabuf, unsigned long *flags);
};
/**
+ * dma_buf_destructor - dma-buf destructor function
+ * @dmabuf: [in] pointer to dma-buf
+ * @dtor_data: [in] destructor data associated with this buffer
+ *
+ * The dma-buf destructor which is called when the dma-buf is freed.
+ *
+ * If the destructor returns an error the dma-buf's exporter release function
+ * won't be called.
+ */
+typedef int (*dma_buf_destructor)(struct dma_buf *dmabuf, void *dtor_data);
+
+/**
* struct dma_buf - shared buffer object
* @size: size of the buffer
* @file: file pointer used for sharing buffers across, and for refcounting.
* @attachments: list of dma_buf_attachment that denotes all devices attached.
* @ops: dma_buf_ops associated with this buffer object.
- * @lock: used internally to serialize list manipulation, attach/detach and vmap/unmap
+ * @lock: used internally to serialize list manipulation, attach/detach and
+ * vmap/unmap, and accesses to name
* @vmapping_counter: used internally to refcnt the vmaps
* @vmap_ptr: the current vmap ptr if vmapping_counter > 0
* @exp_name: name of the exporter; useful for debugging.
+ * @name: userspace-provided name; useful for accounting and debugging.
+ * @name_lock: lock to protect name.
* @owner: pointer to exporter module; used for refcounting when exporter is a
* kernel module.
* @list_node: node for dma_buf accounting and debugging.
@@ -286,6 +437,8 @@ struct dma_buf {
unsigned vmapping_counter;
void *vmap_ptr;
const char *exp_name;
+ const char *name;
+ spinlock_t name_lock;
struct module *owner;
struct list_head list_node;
void *priv;
@@ -300,6 +453,9 @@ struct dma_buf {
__poll_t active;
} cb_excl, cb_shared;
+ dma_buf_destructor dtor;
+ void *dtor_data;
+ atomic_t dent_count;
};
/**
@@ -308,6 +464,8 @@ struct dma_buf {
* @dev: device attached to the buffer.
* @node: list of dma_buf_attachment.
* @priv: exporter specific attachment data.
+ * @dma_map_attrs: DMA attributes to be used when the exporter maps the buffer
+ * through dma_buf_map_attachment.
*
* This structure holds the attachment information between the dma_buf buffer
* and its user device(s). The list contains one attachment struct per device
@@ -323,6 +481,7 @@ struct dma_buf_attachment {
struct device *dev;
struct list_head node;
void *priv;
+ unsigned long dma_map_attrs;
};
/**
@@ -390,8 +549,14 @@ void dma_buf_unmap_attachment(struct dma_buf_attachment *, struct sg_table *,
enum dma_data_direction);
int dma_buf_begin_cpu_access(struct dma_buf *dma_buf,
enum dma_data_direction dir);
+int dma_buf_begin_cpu_access_partial(struct dma_buf *dma_buf,
+ enum dma_data_direction dir,
+ unsigned int offset, unsigned int len);
int dma_buf_end_cpu_access(struct dma_buf *dma_buf,
enum dma_data_direction dir);
+int dma_buf_end_cpu_access_partial(struct dma_buf *dma_buf,
+ enum dma_data_direction dir,
+ unsigned int offset, unsigned int len);
void *dma_buf_kmap(struct dma_buf *, unsigned long);
void dma_buf_kunmap(struct dma_buf *, unsigned long, void *);
@@ -399,4 +564,21 @@ int dma_buf_mmap(struct dma_buf *, struct vm_area_struct *,
unsigned long);
void *dma_buf_vmap(struct dma_buf *);
void dma_buf_vunmap(struct dma_buf *, void *vaddr);
+int dma_buf_get_flags(struct dma_buf *dmabuf, unsigned long *flags);
+int dma_buf_get_uuid(struct dma_buf *dmabuf, uuid_t *uuid);
+
+/**
+ * dma_buf_set_destructor - set the dma-buf's destructor
+ * @dmabuf: [in] pointer to dma-buf
+ * @dma_buf_destructor [in] the destructor function
+ * @dtor_data: [in] destructor data associated with this buffer
+ */
+static inline void dma_buf_set_destructor(struct dma_buf *dmabuf,
+ dma_buf_destructor dtor,
+ void *dtor_data)
+{
+ dmabuf->dtor = dtor;
+ dmabuf->dtor_data = dtor_data;
+}
+
#endif /* __DMA_BUF_H__ */
diff --git a/include/linux/dma-iommu.h b/include/linux/dma-iommu.h
index e8ca5e6..fd7652e 100644
--- a/include/linux/dma-iommu.h
+++ b/include/linux/dma-iommu.h
@@ -25,6 +25,8 @@
#include <linux/iommu.h>
#include <linux/msi.h>
+struct iova_domain;
+
int iommu_dma_init(void);
/* Domain management interface for IOMMU drivers */
@@ -56,6 +58,11 @@ dma_addr_t iommu_dma_map_page(struct device *dev, struct page *page,
unsigned long offset, size_t size, int prot);
int iommu_dma_map_sg(struct device *dev, struct scatterlist *sg,
int nents, int prot);
+size_t iommu_dma_prepare_map_sg(struct device *dev, struct iova_domain *iovad,
+ struct scatterlist *sg, int nents);
+int iommu_dma_finalise_sg(struct device *dev, struct scatterlist *sg,
+ int nents, dma_addr_t dma_addr);
+void iommu_dma_invalidate_sg(struct scatterlist *sg, int nents);
/*
* Arch code with no special attribute handling may use these
@@ -75,6 +82,11 @@ int iommu_dma_mapping_error(struct device *dev, dma_addr_t dma_addr);
void iommu_dma_map_msi_msg(int irq, struct msi_msg *msg);
void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list);
+int iommu_dma_reserve_iova(struct device *dev, dma_addr_t base,
+ u64 size);
+
+int iommu_dma_enable_best_fit_algo(struct device *dev);
+
#else
struct iommu_domain;
@@ -108,6 +120,17 @@ static inline void iommu_dma_get_resv_regions(struct device *dev, struct list_he
{
}
+static inline int iommu_dma_reserve_iova(struct device *dev, dma_addr_t base,
+ u64 size)
+{
+ return -ENODEV;
+}
+
+static inline int iommu_dma_enable_best_fit_algo(struct device *dev)
+{
+ return -ENODEV;
+}
+
#endif /* CONFIG_IOMMU_DMA */
#endif /* __KERNEL__ */
#endif /* __DMA_IOMMU_H */
diff --git a/include/linux/dma-mapping-fast.h b/include/linux/dma-mapping-fast.h
new file mode 100644
index 0000000..aca7592
--- /dev/null
+++ b/include/linux/dma-mapping-fast.h
@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef __LINUX_DMA_MAPPING_FAST_H
+#define __LINUX_DMA_MAPPING_FAST_H
+
+#include <linux/iommu.h>
+#include <linux/io-pgtable-fast.h>
+
+struct dma_iommu_mapping;
+struct io_pgtable_ops;
+struct iova_domain;
+
+struct dma_fast_smmu_mapping {
+ struct device *dev;
+ struct iommu_domain *domain;
+ struct iova_domain *iovad;
+
+ dma_addr_t base;
+ size_t size;
+ size_t num_4k_pages;
+
+ unsigned int bitmap_size;
+ unsigned long *bitmap;
+ unsigned long next_start;
+ unsigned long upcoming_stale_bit;
+ bool have_stale_tlbs;
+
+ dma_addr_t pgtbl_dma_handle;
+ struct io_pgtable_ops *pgtbl_ops;
+
+ spinlock_t lock;
+ struct notifier_block notifier;
+};
+
+#ifdef CONFIG_IOMMU_IO_PGTABLE_FAST
+int fast_smmu_init_mapping(struct device *dev,
+ struct dma_iommu_mapping *mapping);
+void fast_smmu_put_dma_cookie(struct iommu_domain *domain);
+#else
+static inline int fast_smmu_init_mapping(struct device *dev,
+ struct dma_iommu_mapping *mapping)
+{
+ return -ENODEV;
+}
+
+static inline void fast_smmu_put_dma_cookie(struct iommu_domain *domain) {}
+#endif
+
+#endif /* __LINUX_DMA_MAPPING_FAST_H */
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 669cde2..211bdf8 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -11,6 +11,7 @@
#include <linux/scatterlist.h>
#include <linux/bug.h>
#include <linux/mem_encrypt.h>
+#include <linux/android_kabi.h>
/**
* List of possible attributes associated with a DMA mapping. The semantics
@@ -71,6 +72,58 @@
#define DMA_ATTR_PRIVILEGED (1UL << 9)
/*
+ * DMA_ATTR_STRONGLY_ORDERED: Specifies that accesses to the mapping must
+ * not be buffered, reordered, merged with other accesses, or unaligned.
+ * No speculative access may occur in this mapping.
+ */
+#define DMA_ATTR_STRONGLY_ORDERED (1UL << 10)
+/*
+ * DMA_ATTR_SKIP_ZEROING: Do not zero mapping.
+ */
+#define DMA_ATTR_SKIP_ZEROING (1UL << 11)
+/*
+ * DMA_ATTR_NO_DELAYED_UNMAP: Used by msm specific lazy mapping to indicate
+ * that the mapping can be freed on unmap, rather than when the ion_buffer
+ * is freed.
+ */
+#define DMA_ATTR_NO_DELAYED_UNMAP (1UL << 12)
+/*
+ * DMA_ATTR_EXEC_MAPPING: The mapping has executable permissions.
+ */
+#define DMA_ATTR_EXEC_MAPPING (1UL << 13)
+/*
+ * DMA_ATTR_IOMMU_USE_UPSTREAM_HINT: Normally an smmu will override any bus
+ * attributes (i.e cacheablilty) provided by the client device. Some hardware
+ * may be designed to use the original attributes instead.
+ */
+#define DMA_ATTR_IOMMU_USE_UPSTREAM_HINT (1UL << 14)
+/*
+ * When passed to a DMA map call the DMA_ATTR_FORCE_COHERENT DMA
+ * attribute can be used to force a buffer to be mapped as IO coherent.
+ */
+#define DMA_ATTR_FORCE_COHERENT (1UL << 15)
+/*
+ * When passed to a DMA map call the DMA_ATTR_FORCE_NON_COHERENT DMA
+ * attribute can be used to force a buffer to not be mapped as IO
+ * coherent.
+ */
+#define DMA_ATTR_FORCE_NON_COHERENT (1UL << 16)
+/*
+ * DMA_ATTR_DELAYED_UNMAP: Used by ION, it will ensure that mappings are not
+ * removed on unmap but instead are removed when the ion_buffer is freed.
+ */
+#define DMA_ATTR_DELAYED_UNMAP (1UL << 17)
+
+/*
+ * DMA_ATTR_IOMMU_USE_LLC_NWA: Overrides the bus attributes to use the System
+ * Cache(LLC) with allocation policy as Inner Non-Cacheable, Outer Cacheable:
+ * Write-Back, Read-Allocate, No Write-Allocate policy.
+ */
+#define DMA_ATTR_IOMMU_USE_LLC_NWA (1UL << 18)
+
+#define DMA_ERROR_CODE (~(dma_addr_t)0)
+
+/*
* A dma_addr_t can hold any valid DMA or bus address for the platform.
* It can be given to a device to use as a DMA source or target. A CPU cannot
* reference a dma_addr_t directly because there may be translation between
@@ -130,9 +183,19 @@ struct dma_map_ops {
enum dma_data_direction direction);
int (*mapping_error)(struct device *dev, dma_addr_t dma_addr);
int (*dma_supported)(struct device *dev, u64 mask);
+ int (*set_dma_mask)(struct device *dev, u64 mask);
+ void *(*remap)(struct device *dev, void *cpu_addr, dma_addr_t handle,
+ size_t size, unsigned long attrs);
+ void (*unremap)(struct device *dev, void *remapped_address,
+ size_t size);
#ifdef ARCH_HAS_DMA_GET_REQUIRED_MASK
u64 (*get_required_mask)(struct device *dev);
#endif
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
extern const struct dma_map_ops dma_direct_ops;
@@ -454,7 +517,8 @@ void *dma_common_contiguous_remap(struct page *page, size_t size,
void *dma_common_pages_remap(struct page **pages, size_t size,
unsigned long vm_flags, pgprot_t prot,
const void *caller);
-void dma_common_free_remap(void *cpu_addr, size_t size, unsigned long vm_flags);
+void dma_common_free_remap(void *cpu_addr, size_t size, unsigned long vm_flags,
+ bool nowarn);
/**
* dma_mmap_attrs - map a coherent DMA allocation into user space
@@ -599,6 +663,11 @@ static inline int dma_supported(struct device *dev, u64 mask)
#ifndef HAVE_ARCH_DMA_SET_MASK
static inline int dma_set_mask(struct device *dev, u64 mask)
{
+ const struct dma_map_ops *ops = get_dma_ops(dev);
+
+ if (ops->set_dma_mask)
+ return ops->set_dma_mask(dev, mask);
+
if (!dev->dma_mask || !dma_supported(dev, mask))
return -EIO;
@@ -608,6 +677,35 @@ static inline int dma_set_mask(struct device *dev, u64 mask)
return 0;
}
#endif
+static inline void *dma_remap(struct device *dev, void *cpu_addr,
+ dma_addr_t dma_handle, size_t size, unsigned long attrs)
+{
+ const struct dma_map_ops *ops = get_dma_ops(dev);
+
+ if (!ops->remap) {
+ WARN_ONCE(1, "Remap function not implemented for %pS\n",
+ ops->remap);
+ return NULL;
+ }
+
+ return ops->remap(dev, cpu_addr, dma_handle, size, attrs);
+}
+
+
+static inline void dma_unremap(struct device *dev, void *remapped_addr,
+ size_t size)
+{
+ const struct dma_map_ops *ops = get_dma_ops(dev);
+
+ if (!ops->unremap) {
+ WARN_ONCE(1, "unremap function not implemented for %pS\n",
+ ops->unremap);
+ return;
+ }
+
+ return ops->unremap(dev, remapped_addr, size);
+}
+
static inline u64 dma_get_mask(struct device *dev)
{
@@ -731,6 +829,10 @@ int dma_declare_coherent_memory(struct device *dev, phys_addr_t phys_addr,
void dma_release_declared_memory(struct device *dev);
void *dma_mark_declared_memory_occupied(struct device *dev,
dma_addr_t device_addr, size_t size);
+dma_addr_t dma_get_device_base(struct device *dev,
+ struct dma_coherent_mem *mem);
+unsigned long dma_get_size(struct dma_coherent_mem *mem);
+
#else
static inline int
dma_declare_coherent_memory(struct device *dev, phys_addr_t phys_addr,
@@ -750,6 +852,17 @@ dma_mark_declared_memory_occupied(struct device *dev,
{
return ERR_PTR(-EBUSY);
}
+static inline dma_addr_t
+dma_get_device_base(struct device *dev, struct dma_coherent_mem *mem)
+{
+ return 0;
+}
+
+static inline unsigned long dma_get_size(struct dma_coherent_mem *mem)
+{
+ return 0;
+}
+
#endif /* CONFIG_HAVE_GENERIC_DMA_COHERENT */
#ifdef CONFIG_HAS_DMA
diff --git a/include/linux/dma-removed.h b/include/linux/dma-removed.h
new file mode 100644
index 0000000..d636417
--- /dev/null
+++ b/include/linux/dma-removed.h
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __LINUX_DMA_REMOVED_H
+#define __LINUX_DMA_REMOVED_H
+
+extern const struct dma_map_ops removed_dma_ops;
+
+#endif /* __LINUX_DMA_REMOVED_H */
+
diff --git a/include/linux/elevator.h b/include/linux/elevator.h
index a2bf4a6b..aa8e392 100644
--- a/include/linux/elevator.h
+++ b/include/linux/elevator.h
@@ -4,6 +4,7 @@
#include <linux/percpu.h>
#include <linux/hashtable.h>
+#include <linux/android_kabi.h>
#ifdef CONFIG_BLOCK
@@ -119,6 +120,12 @@ struct elevator_mq_ops {
struct request *(*next_request)(struct request_queue *, struct request *);
void (*init_icq)(struct io_cq *);
void (*exit_icq)(struct io_cq *);
+ void (*elevator_registered_fn)(struct request_queue *q);
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
#define ELV_NAME_MAX (16)
@@ -157,6 +164,9 @@ struct elevator_type
/* managed by elevator core */
char icq_cache_name[ELV_NAME_MAX + 6]; /* elvname + "_io_cq" */
struct list_head list;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
};
#define ELV_HASH_BITS 6
diff --git a/include/linux/elfnote.h b/include/linux/elfnote.h
index 7fdd7f3..69b136e 100644
--- a/include/linux/elfnote.h
+++ b/include/linux/elfnote.h
@@ -59,7 +59,7 @@
ELFNOTE_END
#else /* !__ASSEMBLER__ */
-#include <linux/elf.h>
+#include <uapi/linux/elf.h>
/*
* Use an anonymous structure which matches the shape of
* Elf{32,64}_Nhdr, but includes the name and desc data. The size and
diff --git a/include/linux/energy_model.h b/include/linux/energy_model.h
new file mode 100644
index 0000000..aa027f7
--- /dev/null
+++ b/include/linux/energy_model.h
@@ -0,0 +1,187 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_ENERGY_MODEL_H
+#define _LINUX_ENERGY_MODEL_H
+#include <linux/cpumask.h>
+#include <linux/jump_label.h>
+#include <linux/kobject.h>
+#include <linux/rcupdate.h>
+#include <linux/sched/cpufreq.h>
+#include <linux/sched/topology.h>
+#include <linux/types.h>
+
+#ifdef CONFIG_ENERGY_MODEL
+/**
+ * em_cap_state - Capacity state of a performance domain
+ * @frequency: The CPU frequency in KHz, for consistency with CPUFreq
+ * @power: The power consumed by 1 CPU at this level, in milli-watts
+ * @cost: The cost coefficient associated with this level, used during
+ * energy calculation. Equal to: power * max_frequency / frequency
+ */
+struct em_cap_state {
+ unsigned long frequency;
+ unsigned long power;
+ unsigned long cost;
+};
+
+/**
+ * em_perf_domain - Performance domain
+ * @table: List of capacity states, in ascending order
+ * @nr_cap_states: Number of capacity states
+ * @cpus: Cpumask covering the CPUs of the domain
+ *
+ * A "performance domain" represents a group of CPUs whose performance is
+ * scaled together. All CPUs of a performance domain must have the same
+ * micro-architecture. Performance domains often have a 1-to-1 mapping with
+ * CPUFreq policies.
+ */
+struct em_perf_domain {
+ struct em_cap_state *table;
+ int nr_cap_states;
+ unsigned long cpus[0];
+};
+
+#define EM_CPU_MAX_POWER 0xFFFF
+
+struct em_data_callback {
+ /**
+ * active_power() - Provide power at the next capacity state of a CPU
+ * @power : Active power at the capacity state in mW (modified)
+ * @freq : Frequency at the capacity state in kHz (modified)
+ * @cpu : CPU for which we do this operation
+ *
+ * active_power() must find the lowest capacity state of 'cpu' above
+ * 'freq' and update 'power' and 'freq' to the matching active power
+ * and frequency.
+ *
+ * The power is the one of a single CPU in the domain, expressed in
+ * milli-watts. It is expected to fit in the [0, EM_CPU_MAX_POWER]
+ * range.
+ *
+ * Return 0 on success.
+ */
+ int (*active_power)(unsigned long *power, unsigned long *freq, int cpu);
+};
+#define EM_DATA_CB(_active_power_cb) { .active_power = &_active_power_cb }
+
+struct em_perf_domain *em_cpu_get(int cpu);
+int em_register_perf_domain(cpumask_t *span, unsigned int nr_states,
+ struct em_data_callback *cb);
+
+/**
+ * em_pd_energy() - Estimates the energy consumed by the CPUs of a perf. domain
+ * @pd : performance domain for which energy has to be estimated
+ * @max_util : highest utilization among CPUs of the domain
+ * @sum_util : sum of the utilization of all CPUs in the domain
+ *
+ * Return: the sum of the energy consumed by the CPUs of the domain assuming
+ * a capacity state satisfying the max utilization of the domain.
+ */
+static inline unsigned long em_pd_energy(struct em_perf_domain *pd,
+ unsigned long max_util, unsigned long sum_util)
+{
+ unsigned long freq, scale_cpu;
+ struct em_cap_state *cs;
+ int i, cpu;
+
+ /*
+ * In order to predict the capacity state, map the utilization of the
+ * most utilized CPU of the performance domain to a requested frequency,
+ * like schedutil.
+ */
+ cpu = cpumask_first(to_cpumask(pd->cpus));
+ scale_cpu = arch_scale_cpu_capacity(NULL, cpu);
+ cs = &pd->table[pd->nr_cap_states - 1];
+ freq = map_util_freq(max_util, cs->frequency, scale_cpu);
+
+ /*
+ * Find the lowest capacity state of the Energy Model above the
+ * requested frequency.
+ */
+ for (i = 0; i < pd->nr_cap_states; i++) {
+ cs = &pd->table[i];
+ if (cs->frequency >= freq)
+ break;
+ }
+
+ /*
+ * The capacity of a CPU in the domain at that capacity state (cs)
+ * can be computed as:
+ *
+ * cs->freq * scale_cpu
+ * cs->cap = -------------------- (1)
+ * cpu_max_freq
+ *
+ * So, ignoring the costs of idle states (which are not available in
+ * the EM), the energy consumed by this CPU at that capacity state is
+ * estimated as:
+ *
+ * cs->power * cpu_util
+ * cpu_nrg = -------------------- (2)
+ * cs->cap
+ *
+ * since 'cpu_util / cs->cap' represents its percentage of busy time.
+ *
+ * NOTE: Although the result of this computation actually is in
+ * units of power, it can be manipulated as an energy value
+ * over a scheduling period, since it is assumed to be
+ * constant during that interval.
+ *
+ * By injecting (1) in (2), 'cpu_nrg' can be re-expressed as a product
+ * of two terms:
+ *
+ * cs->power * cpu_max_freq cpu_util
+ * cpu_nrg = ------------------------ * --------- (3)
+ * cs->freq scale_cpu
+ *
+ * The first term is static, and is stored in the em_cap_state struct
+ * as 'cs->cost'.
+ *
+ * Since all CPUs of the domain have the same micro-architecture, they
+ * share the same 'cs->cost', and the same CPU capacity. Hence, the
+ * total energy of the domain (which is the simple sum of the energy of
+ * all of its CPUs) can be factorized as:
+ *
+ * cs->cost * \Sum cpu_util
+ * pd_nrg = ------------------------ (4)
+ * scale_cpu
+ */
+ return cs->cost * sum_util / scale_cpu;
+}
+
+/**
+ * em_pd_nr_cap_states() - Get the number of capacity states of a perf. domain
+ * @pd : performance domain for which this must be done
+ *
+ * Return: the number of capacity states in the performance domain table
+ */
+static inline int em_pd_nr_cap_states(struct em_perf_domain *pd)
+{
+ return pd->nr_cap_states;
+}
+
+#else
+struct em_perf_domain {};
+struct em_data_callback {};
+#define EM_DATA_CB(_active_power_cb) { }
+
+static inline int em_register_perf_domain(cpumask_t *span,
+ unsigned int nr_states, struct em_data_callback *cb)
+{
+ return -EINVAL;
+}
+static inline struct em_perf_domain *em_cpu_get(int cpu)
+{
+ return NULL;
+}
+static inline unsigned long em_pd_energy(struct em_perf_domain *pd,
+ unsigned long max_util, unsigned long sum_util)
+{
+ return 0;
+}
+static inline int em_pd_nr_cap_states(struct em_perf_domain *pd)
+{
+ return 0;
+}
+#endif
+
+#endif
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index f8a2245..3aaebb6 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -15,6 +15,7 @@
#include <linux/bitmap.h>
#include <linux/compat.h>
+#include <linux/android_kabi.h>
#include <uapi/linux/ethtool.h>
#ifdef CONFIG_COMPAT
@@ -412,5 +413,10 @@ struct ethtool_ops {
struct ethtool_fecparam *);
void (*get_ethtool_phy_stats)(struct net_device *,
struct ethtool_stats *, u64 *);
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
#endif /* _LINUX_ETHTOOL_H */
diff --git a/include/linux/export.h b/include/linux/export.h
index ce764a5..e7ccb18 100644
--- a/include/linux/export.h
+++ b/include/linux/export.h
@@ -103,7 +103,7 @@ struct kernel_symbol {
*/
#define __EXPORT_SYMBOL(sym, sec) === __KSYM_##sym ===
-#elif defined(CONFIG_TRIM_UNUSED_KSYMS)
+#elif defined(CONFIG_TRIM_UNUSED_KSYMS) && !defined(MODULE)
#include <generated/autoksyms.h>
diff --git a/include/linux/extcon.h b/include/linux/extcon.h
index fdef4c7..9dff1c6 100644
--- a/include/linux/extcon.h
+++ b/include/linux/extcon.h
@@ -125,14 +125,19 @@
* @type: integer (intval)
* @value: 0 (USB/USB2) or 1 (USB3)
* @default: 0 (USB/USB2)
+ * - EXTCON_PROP_USB_TYPEC_MED_HIGH_CURRENT
+ * @type: integer (intval)
+ * @value: 0 (default current), 1 (medium or high current)
+ * @default: 0 (default current)
*
*/
#define EXTCON_PROP_USB_VBUS 0
#define EXTCON_PROP_USB_TYPEC_POLARITY 1
#define EXTCON_PROP_USB_SS 2
+#define EXTCON_PROP_USB_TYPEC_MED_HIGH_CURRENT 3
#define EXTCON_PROP_USB_MIN 0
-#define EXTCON_PROP_USB_MAX 2
+#define EXTCON_PROP_USB_MAX 3
#define EXTCON_PROP_USB_CNT (EXTCON_PROP_USB_MAX - EXTCON_PROP_USB_MIN + 1)
/* Properties of EXTCON_TYPE_CHG. */
@@ -208,6 +213,10 @@ extern int extcon_register_notifier(struct extcon_dev *edev, unsigned int id,
struct notifier_block *nb);
extern int extcon_unregister_notifier(struct extcon_dev *edev, unsigned int id,
struct notifier_block *nb);
+extern int extcon_register_blocking_notifier(struct extcon_dev *edev,
+ unsigned int id, struct notifier_block *nb);
+extern int extcon_unregister_blocking_notifier(struct extcon_dev *edev,
+ unsigned int id, struct notifier_block *nb);
extern int devm_extcon_register_notifier(struct device *dev,
struct extcon_dev *edev, unsigned int id,
struct notifier_block *nb);
@@ -237,6 +246,8 @@ extern struct extcon_dev *extcon_get_edev_by_phandle(struct device *dev,
/* Following API get the name of extcon device. */
extern const char *extcon_get_edev_name(struct extcon_dev *edev);
+extern int extcon_blocking_sync(struct extcon_dev *edev, unsigned int id,
+ bool val);
#else /* CONFIG_EXTCON */
static inline int extcon_get_state(struct extcon_dev *edev, unsigned int id)
{
@@ -268,6 +279,20 @@ static inline int extcon_unregister_notifier(struct extcon_dev *edev,
return 0;
}
+static inline int extcon_register_blocking_notifier(struct extcon_dev *edev,
+ unsigned int id,
+ struct notifier_block *nb)
+{
+ return 0;
+}
+
+static inline int extcon_unregister_blocking_notifier(struct extcon_dev *edev,
+ unsigned int id,
+ struct notifier_block *nb)
+{
+ return 0;
+}
+
static inline int devm_extcon_register_notifier(struct device *dev,
struct extcon_dev *edev, unsigned int id,
struct notifier_block *nb)
@@ -307,6 +332,11 @@ static inline struct extcon_dev *extcon_get_extcon_dev(const char *extcon_name)
return ERR_PTR(-ENODEV);
}
+static inline const char *extcon_get_edev_name(struct extcon_dev *edev)
+{
+ return NULL;
+}
+
static inline struct extcon_dev *extcon_find_edev_by_node(struct device_node *node)
{
return ERR_PTR(-ENODEV);
diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h
index 40fec5f..a5dbb57 100644
--- a/include/linux/f2fs_fs.h
+++ b/include/linux/f2fs_fs.h
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
/**
* include/linux/f2fs_fs.h
*
* Copyright (c) 2012 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#ifndef _LINUX_F2FS_FS_H
#define _LINUX_F2FS_FS_H
@@ -26,6 +23,7 @@
#define NULL_ADDR ((block_t)0) /* used as block_t addresses */
#define NEW_ADDR ((block_t)-1) /* used as block_t addresses */
+#define COMPRESS_ADDR ((block_t)-2) /* used as compressed data flag */
#define F2FS_BYTES_TO_BLK(bytes) ((bytes) >> F2FS_BLKSIZE_BITS)
#define F2FS_BLK_TO_BYTES(blk) ((blk) << F2FS_BLKSIZE_BITS)
@@ -39,11 +37,14 @@
#define F2FS_MAX_QUOTAS 3
+#define F2FS_ENC_UTF8_12_1 1
+
#define F2FS_IO_SIZE(sbi) (1 << F2FS_OPTION(sbi).write_io_size_bits) /* Blocks */
#define F2FS_IO_SIZE_KB(sbi) (1 << (F2FS_OPTION(sbi).write_io_size_bits + 2)) /* KB */
#define F2FS_IO_SIZE_BYTES(sbi) (1 << (F2FS_OPTION(sbi).write_io_size_bits + 12)) /* B */
#define F2FS_IO_SIZE_BITS(sbi) (F2FS_OPTION(sbi).write_io_size_bits) /* power of 2 */
#define F2FS_IO_SIZE_MASK(sbi) (F2FS_IO_SIZE(sbi) - 1)
+#define F2FS_IO_ALIGNED(sbi) (F2FS_IO_SIZE(sbi) > 1)
/* This flag is used by node and meta inodes, and by recovery */
#define GFP_F2FS_ZERO (GFP_NOFS | __GFP_ZERO)
@@ -112,12 +113,19 @@ struct f2fs_super_block {
struct f2fs_device devs[MAX_DEVICES]; /* device list */
__le32 qf_ino[F2FS_MAX_QUOTAS]; /* quota inode numbers */
__u8 hot_ext_count; /* # of hot file extension */
- __u8 reserved[314]; /* valid reserved region */
+ __le16 s_encoding; /* Filename charset encoding */
+ __le16 s_encoding_flags; /* Filename charset encoding flags */
+ __u8 reserved[306]; /* valid reserved region */
+ __le32 crc; /* checksum of superblock */
} __packed;
/*
* For checkpoint
*/
+#define CP_RESIZEFS_FLAG 0x00004000
+#define CP_DISABLED_QUICK_FLAG 0x00002000
+#define CP_DISABLED_FLAG 0x00001000
+#define CP_QUOTA_NEED_FSCK_FLAG 0x00000800
#define CP_LARGE_NAT_BITMAP_FLAG 0x00000400
#define CP_NOCRC_RECOVERY_FLAG 0x00000200
#define CP_TRIMMED_FLAG 0x00000100
@@ -163,6 +171,10 @@ struct f2fs_checkpoint {
unsigned char sit_nat_version_bitmap[1];
} __packed;
+#define CP_CHKSUM_OFFSET 4092 /* default chksum offset in checkpoint */
+#define CP_MIN_CHKSUM_OFFSET \
+ (offsetof(struct f2fs_checkpoint, sit_nat_version_bitmap))
+
/*
* For orphan inode management
*/
@@ -186,7 +198,7 @@ struct f2fs_orphan_block {
struct f2fs_extent {
__le32 fofs; /* start file offset of the extent */
__le32 blk; /* start block address of the extent */
- __le32 len; /* lengh of the extent */
+ __le32 len; /* length of the extent */
} __packed;
#define F2FS_NAME_LEN 255
@@ -197,11 +209,12 @@ struct f2fs_extent {
get_extra_isize(inode))
#define DEF_NIDS_PER_INODE 5 /* Node IDs in an Inode */
#define ADDRS_PER_INODE(inode) addrs_per_inode(inode)
-#define ADDRS_PER_BLOCK 1018 /* Address Pointers in a Direct Block */
+#define DEF_ADDRS_PER_BLOCK 1018 /* Address Pointers in a Direct Block */
+#define ADDRS_PER_BLOCK(inode) addrs_per_block(inode)
#define NIDS_PER_BLOCK 1018 /* Node IDs in an Indirect Block */
#define ADDRS_PER_PAGE(page, inode) \
- (IS_INODE(page) ? ADDRS_PER_INODE(inode) : ADDRS_PER_BLOCK)
+ (IS_INODE(page) ? ADDRS_PER_INODE(inode) : ADDRS_PER_BLOCK(inode))
#define NODE_DIR1_BLOCK (DEF_ADDRS_PER_INODE + 1)
#define NODE_DIR2_BLOCK (DEF_ADDRS_PER_INODE + 2)
@@ -257,6 +270,10 @@ struct f2fs_inode {
__le32 i_inode_checksum;/* inode meta checksum */
__le64 i_crtime; /* creation time */
__le32 i_crtime_nsec; /* creation time in nano scale */
+ __le64 i_compr_blocks; /* # of compressed blocks */
+ __u8 i_compress_algorithm; /* compress algorithm */
+ __u8 i_log_cluster_size; /* log of cluster size */
+ __le16 i_padding; /* padding */
__le32 i_extra_end[0]; /* for attribute size calculation */
} __packed;
__le32 i_addr[DEF_ADDRS_PER_INODE]; /* Pointers to data blocks */
@@ -266,7 +283,7 @@ struct f2fs_inode {
} __packed;
struct direct_node {
- __le32 addr[ADDRS_PER_BLOCK]; /* array of data block address */
+ __le32 addr[DEF_ADDRS_PER_BLOCK]; /* array of data block address */
} __packed;
struct indirect_node {
@@ -284,7 +301,7 @@ enum {
struct node_footer {
__le32 nid; /* node id */
- __le32 ino; /* inode nunmber */
+ __le32 ino; /* inode number */
__le32 flag; /* include cold/fsync/dentry marks and offset */
__le64 cp_ver; /* checkpoint version */
__le32 next_blkaddr; /* next node page block address */
@@ -512,7 +529,7 @@ typedef __le32 f2fs_hash_t;
struct f2fs_dir_entry {
__le32 hash_code; /* hash code of file name */
__le32 ino; /* inode number */
- __le16 name_len; /* lengh of file name */
+ __le16 name_len; /* length of file name */
__u8 file_type; /* file type */
} __packed;
diff --git a/include/linux/filter.h b/include/linux/filter.h
index e981bd9..15d636c 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -505,7 +505,12 @@ struct sock_fprog_kern {
struct sock_filter *filter;
};
+#define BPF_BINARY_HEADER_MAGIC 0x05de0e82
+
struct bpf_binary_header {
+#ifdef CONFIG_CFI_CLANG
+ u32 magic;
+#endif
u32 pages;
/* Some arches need word alignment for their instructions */
u8 image[] __aligned(4);
@@ -545,7 +550,62 @@ struct sk_filter {
struct bpf_prog *prog;
};
-#define BPF_PROG_RUN(filter, ctx) (*(filter)->bpf_func)(ctx, (filter)->insnsi)
+#if IS_ENABLED(CONFIG_BPF_JIT) && IS_ENABLED(CONFIG_CFI_CLANG)
+/*
+ * With JIT, the kernel makes an indirect call to dynamically generated
+ * code. Use bpf_call_func to perform additional validation of the call
+ * target to narrow down attack surface. Architectures implementing BPF
+ * JIT can override arch_bpf_jit_check_func for arch-specific checking.
+ */
+extern bool arch_bpf_jit_check_func(const struct bpf_prog *prog);
+
+static inline unsigned int __bpf_call_func(const struct bpf_prog *prog,
+ const void *ctx)
+{
+ /* Call interpreter with CFI checking. */
+ return prog->bpf_func(ctx, prog->insnsi);
+}
+
+static inline struct bpf_binary_header *
+bpf_jit_binary_hdr(const struct bpf_prog *fp);
+
+static inline unsigned int __nocfi bpf_call_func(const struct bpf_prog *prog,
+ const void *ctx)
+{
+ const struct bpf_binary_header *hdr = bpf_jit_binary_hdr(prog);
+
+ if (!IS_ENABLED(CONFIG_BPF_JIT_ALWAYS_ON) && !prog->jited)
+ return __bpf_call_func(prog, ctx);
+
+ /*
+ * We are about to call dynamically generated code. Check that the
+ * page has bpf_binary_header with a valid magic to limit possible
+ * call targets.
+ */
+ BUG_ON(hdr->magic != BPF_BINARY_HEADER_MAGIC ||
+ !arch_bpf_jit_check_func(prog));
+
+ /* Call jited function without CFI checking. */
+ return prog->bpf_func(ctx, prog->insnsi);
+}
+
+static inline void bpf_jit_set_header_magic(struct bpf_binary_header *hdr)
+{
+ hdr->magic = BPF_BINARY_HEADER_MAGIC;
+}
+#else
+static inline unsigned int bpf_call_func(const struct bpf_prog *prog,
+ const void *ctx)
+{
+ return prog->bpf_func(ctx, prog->insnsi);
+}
+
+static inline void bpf_jit_set_header_magic(struct bpf_binary_header *hdr)
+{
+}
+#endif
+
+#define BPF_PROG_RUN(filter, ctx) bpf_call_func(filter, ctx)
#define BPF_SKB_CB_LEN QDISC_CB_PRIV_LEN
diff --git a/include/linux/fs.h b/include/linux/fs.h
index b6a955b..1bb034a 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -37,6 +37,7 @@
#include <linux/uuid.h>
#include <linux/errseq.h>
#include <linux/ioprio.h>
+#include <linux/android_kabi.h>
#include <asm/byteorder.h>
#include <uapi/linux/fs.h>
@@ -61,6 +62,8 @@ struct workqueue_struct;
struct iov_iter;
struct fscrypt_info;
struct fscrypt_operations;
+struct fsverity_info;
+struct fsverity_operations;
extern void __init inode_init(void);
extern void __init inode_init_early(void);
@@ -396,6 +399,11 @@ struct address_space_operations {
int (*swap_activate)(struct swap_info_struct *sis, struct file *file,
sector_t *span);
void (*swap_deactivate)(struct file *file);
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
extern const struct address_space_operations empty_aops;
@@ -430,6 +438,11 @@ struct address_space {
struct list_head private_list; /* for use by the address_space */
void *private_data; /* ditto */
errseq_t wb_err;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
} __attribute__((aligned(sizeof(long)))) __randomize_layout;
/*
* On most architectures that alignment is already the case; but
@@ -474,6 +487,11 @@ struct block_device {
int bd_fsfreeze_count;
/* Mutex for freeze */
struct mutex bd_fsfreeze_mutex;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
} __randomize_layout;
/*
@@ -689,11 +707,18 @@ struct inode {
struct fsnotify_mark_connector __rcu *i_fsnotify_marks;
#endif
-#if IS_ENABLED(CONFIG_FS_ENCRYPTION)
+#ifdef CONFIG_FS_ENCRYPTION
struct fscrypt_info *i_crypt_info;
#endif
+#ifdef CONFIG_FS_VERITY
+ struct fsverity_info *i_verity_info;
+#endif
+
void *i_private; /* fs or device private pointer */
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
} __randomize_layout;
static inline unsigned int i_blocksize(const struct inode *node)
@@ -985,6 +1010,9 @@ struct file_lock;
struct file_lock_operations {
void (*fl_copy_lock)(struct file_lock *, struct file_lock *);
void (*fl_release_private)(struct file_lock *);
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
};
struct lock_manager_operations {
@@ -997,6 +1025,9 @@ struct lock_manager_operations {
bool (*lm_break)(struct file_lock *);
int (*lm_change)(struct file_lock *, int, struct list_head *);
void (*lm_setup)(struct file_lock *, void **);
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
};
struct lock_manager {
@@ -1064,6 +1095,10 @@ struct file_lock {
int state; /* state of grant or error if -ve */
} afs;
} fl_u;
+
+ struct list_head android_reserved1; /* not a macro as we might just need it as-is */
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
} __randomize_layout;
struct file_lock_context {
@@ -1328,6 +1363,12 @@ extern int send_sigurg(struct fown_struct *fown);
#define SB_ACTIVE (1<<30)
#define SB_NOUSER (1<<31)
+/* These flags relate to encoding and casefolding */
+#define SB_ENC_STRICT_MODE_FL (1 << 0)
+
+#define sb_has_enc_strict_mode(sb) \
+ (sb->s_encoding_flags & SB_ENC_STRICT_MODE_FL)
+
/*
* Umount options
*/
@@ -1389,8 +1430,16 @@ struct super_block {
void *s_security;
#endif
const struct xattr_handler **s_xattr;
-#if IS_ENABLED(CONFIG_FS_ENCRYPTION)
+#ifdef CONFIG_FS_ENCRYPTION
const struct fscrypt_operations *s_cop;
+ struct key *s_master_keys; /* master crypto keys in use */
+#endif
+#ifdef CONFIG_FS_VERITY
+ const struct fsverity_operations *s_vop;
+#endif
+#ifdef CONFIG_UNICODE
+ struct unicode_map *s_encoding;
+ __u16 s_encoding_flags;
#endif
struct hlist_bl_head s_roots; /* alternate root dentries for NFS */
struct list_head s_mounts; /* list of mounts; _not_ for fs use */
@@ -1477,6 +1526,11 @@ struct super_block {
spinlock_t s_inode_wblist_lock;
struct list_head s_inodes_wb; /* writeback inodes */
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
} __randomize_layout;
/* Helper functions so that in most cases filesystems will
@@ -1777,6 +1831,11 @@ struct file_operations {
int (*dedupe_file_range)(struct file *, loff_t, struct file *, loff_t,
u64);
int (*fadvise)(struct file *, loff_t, loff_t, int);
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
} __randomize_layout;
struct inode_operations {
@@ -1807,6 +1866,11 @@ struct inode_operations {
umode_t create_mode);
int (*tmpfile) (struct inode *, struct dentry *, umode_t);
int (*set_acl)(struct inode *, struct posix_acl *, int);
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
} ____cacheline_aligned;
static inline ssize_t call_read_iter(struct file *file, struct kiocb *kio,
@@ -1871,9 +1935,14 @@ struct super_operations {
int (*unfreeze_fs) (struct super_block *);
int (*statfs) (struct dentry *, struct kstatfs *);
int (*remount_fs) (struct super_block *, int *, char *);
+ int (*remount_fs2) (struct vfsmount *, struct super_block *, int *, char *);
+ void *(*clone_mnt_data) (void *);
+ void (*copy_mnt_data) (void *, void *);
void (*umount_begin) (struct super_block *);
+ void (*umount_end)(struct super_block *sb, int flags);
int (*show_options)(struct seq_file *, struct dentry *);
+ int (*show_options2)(struct vfsmount *,struct seq_file *, struct dentry *);
int (*show_devname)(struct seq_file *, struct dentry *);
int (*show_path)(struct seq_file *, struct dentry *);
int (*show_stats)(struct seq_file *, struct dentry *);
@@ -1887,6 +1956,11 @@ struct super_operations {
struct shrink_control *);
long (*free_cached_objects)(struct super_block *,
struct shrink_control *);
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
/*
@@ -1911,6 +1985,8 @@ struct super_operations {
#define S_DAX 0 /* Make all the DAX code disappear */
#endif
#define S_ENCRYPTED 16384 /* Encrypted file (using fs/crypto/) */
+#define S_CASEFOLD 32768 /* Casefolded file */
+#define S_VERITY 65536 /* Verity file (using fs/verity/) */
/*
* Note that nosuid etc flags are inode-specific: setting some file-system
@@ -1951,6 +2027,8 @@ static inline bool sb_rdonly(const struct super_block *sb) { return sb->s_flags
#define IS_NOSEC(inode) ((inode)->i_flags & S_NOSEC)
#define IS_DAX(inode) ((inode)->i_flags & S_DAX)
#define IS_ENCRYPTED(inode) ((inode)->i_flags & S_ENCRYPTED)
+#define IS_CASEFOLDED(inode) ((inode)->i_flags & S_CASEFOLD)
+#define IS_VERITY(inode) ((inode)->i_flags & S_VERITY)
#define IS_WHITEOUT(inode) (S_ISCHR(inode->i_mode) && \
(inode)->i_rdev == WHITEOUT_DEV)
@@ -2136,6 +2214,9 @@ struct file_system_type {
#define FS_RENAME_DOES_D_MOVE 32768 /* FS will handle d_move() during rename() internally. */
struct dentry *(*mount) (struct file_system_type *, int,
const char *, void *);
+ struct dentry *(*mount2) (struct vfsmount *, struct file_system_type *, int,
+ const char *, void *);
+ void *(*alloc_mnt_data) (void);
void (*kill_sb) (struct super_block *);
struct module *owner;
struct file_system_type * next;
@@ -2149,6 +2230,11 @@ struct file_system_type {
struct lock_class_key i_lock_key;
struct lock_class_key i_mutex_key;
struct lock_class_key i_mutex_dir_key;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
#define MODULE_ALIAS_FS(NAME) MODULE_ALIAS("fs-" NAME)
@@ -3227,6 +3313,20 @@ extern int generic_file_fsync(struct file *, loff_t, loff_t, int);
extern int generic_check_addressable(unsigned, u64);
+#ifdef CONFIG_UNICODE
+extern int generic_ci_d_hash(const struct dentry *dentry, struct qstr *str);
+extern int generic_ci_d_compare(const struct dentry *dentry, unsigned int len,
+ const char *str, const struct qstr *name);
+extern bool needs_casefold(const struct inode *dir);
+#else
+static inline bool needs_casefold(const struct inode *dir)
+{
+ return 0;
+}
+#endif
+extern void generic_set_encrypted_ci_d_ops(struct inode *dir,
+ struct dentry *dentry);
+
#ifdef CONFIG_MIGRATION
extern int buffer_migrate_page(struct address_space *,
struct page *, struct page *,
@@ -3472,4 +3572,27 @@ extern void inode_nohighmem(struct inode *inode);
extern int vfs_fadvise(struct file *file, loff_t offset, loff_t len,
int advice);
+int vfs_ioc_setflags_prepare(struct inode *inode, unsigned int oldflags,
+ unsigned int flags);
+
+int vfs_ioc_fssetxattr_check(struct inode *inode, const struct fsxattr *old_fa,
+ struct fsxattr *fa);
+
+static inline void simple_fill_fsxattr(struct fsxattr *fa, __u32 xflags)
+{
+ memset(fa, 0, sizeof(*fa));
+ fa->fsx_xflags = xflags;
+}
+
+/*
+ * Flush file data before changing attributes. Caller must hold any locks
+ * required to prevent further writes to this file until we're done setting
+ * flags.
+ */
+static inline int inode_drain_writes(struct inode *inode)
+{
+ inode_dio_wait(inode);
+ return filemap_write_and_wait(inode->i_mapping);
+}
+
#endif /* _LINUX_FS_H */
diff --git a/include/linux/fscrypt.h b/include/linux/fscrypt.h
index c1e4a61..a7e4caa 100644
--- a/include/linux/fscrypt.h
+++ b/include/linux/fscrypt.h
@@ -2,9 +2,8 @@
/*
* fscrypt.h: declarations for per-file encryption
*
- * Filesystems that implement per-file encryption include this header
- * file with the __FS_HAS_ENCRYPTION set according to whether that filesystem
- * is being built with encryption support or not.
+ * Filesystems that implement per-file encryption must include this header
+ * file.
*
* Copyright (C) 2015, Google, Inc.
*
@@ -15,11 +14,16 @@
#define _LINUX_FSCRYPT_H
#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/parser.h>
+#include <linux/slab.h>
+#include <uapi/linux/fscrypt.h>
#define FS_CRYPTO_BLOCK_SIZE 16
-struct fscrypt_ctx;
+union fscrypt_context;
struct fscrypt_info;
+struct seq_file;
struct fscrypt_str {
unsigned char *name;
@@ -41,16 +45,624 @@ struct fscrypt_name {
#define fname_len(p) ((p)->disk_name.len)
/* Maximum value for the third parameter of fscrypt_operations.set_context(). */
-#define FSCRYPT_SET_CONTEXT_MAX_SIZE 28
+#define FSCRYPT_SET_CONTEXT_MAX_SIZE 40
-#if __FS_HAS_ENCRYPTION
-#include <linux/fscrypt_supp.h>
+#ifdef CONFIG_FS_ENCRYPTION
+/*
+ * fscrypt superblock flags
+ */
+#define FS_CFLG_OWN_PAGES (1U << 1)
+
+/*
+ * crypto operations for filesystems
+ */
+struct fscrypt_operations {
+ unsigned int flags;
+ const char *key_prefix;
+ int (*get_context)(struct inode *inode, void *ctx, size_t len);
+ int (*set_context)(struct inode *inode, const void *ctx, size_t len,
+ void *fs_data);
+ const union fscrypt_context *(*get_dummy_context)(
+ struct super_block *sb);
+ bool (*empty_dir)(struct inode *inode);
+ unsigned int max_namelen;
+ bool (*has_stable_inodes)(struct super_block *sb);
+ void (*get_ino_and_lblk_bits)(struct super_block *sb,
+ int *ino_bits_ret, int *lblk_bits_ret);
+ bool (*inline_crypt_enabled)(struct super_block *sb);
+ int (*get_num_devices)(struct super_block *sb);
+ void (*get_devices)(struct super_block *sb,
+ struct request_queue **devs);
+};
+
+static inline bool fscrypt_has_encryption_key(const struct inode *inode)
+{
+ /* pairs with cmpxchg_release() in fscrypt_get_encryption_info() */
+ return READ_ONCE(inode->i_crypt_info) != NULL;
+}
+
+/**
+ * fscrypt_needs_contents_encryption() - check whether an inode needs
+ * contents encryption
+ * @inode: the inode to check
+ *
+ * Return: %true iff the inode is an encrypted regular file and the kernel was
+ * built with fscrypt support.
+ *
+ * If you need to know whether the encrypt bit is set even when the kernel was
+ * built without fscrypt support, you must use IS_ENCRYPTED() directly instead.
+ */
+static inline bool fscrypt_needs_contents_encryption(const struct inode *inode)
+{
+ return IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode);
+}
+
+static inline const union fscrypt_context *
+fscrypt_get_dummy_context(struct super_block *sb)
+{
+ if (!sb->s_cop->get_dummy_context)
+ return NULL;
+ return sb->s_cop->get_dummy_context(sb);
+}
+
+/*
+ * When d_splice_alias() moves a directory's encrypted alias to its decrypted
+ * alias as a result of the encryption key being added, DCACHE_ENCRYPTED_NAME
+ * must be cleared. Note that we don't have to support arbitrary moves of this
+ * flag because fscrypt doesn't allow encrypted aliases to be the source or
+ * target of a rename().
+ */
+static inline void fscrypt_handle_d_move(struct dentry *dentry)
+{
+ dentry->d_flags &= ~DCACHE_ENCRYPTED_NAME;
+}
+
+/**
+ * fscrypt_is_nokey_name() - test whether a dentry is a no-key name
+ * @dentry: the dentry to check
+ *
+ * This returns true if the dentry is a no-key dentry. A no-key dentry is a
+ * dentry that was created in an encrypted directory that hasn't had its
+ * encryption key added yet. Such dentries may be either positive or negative.
+ *
+ * When a filesystem is asked to create a new filename in an encrypted directory
+ * and the new filename's dentry is a no-key dentry, it must fail the operation
+ * with ENOKEY. This includes ->create(), ->mkdir(), ->mknod(), ->symlink(),
+ * ->rename(), and ->link(). (However, ->rename() and ->link() are already
+ * handled by fscrypt_prepare_rename() and fscrypt_prepare_link().)
+ *
+ * This is necessary because creating a filename requires the directory's
+ * encryption key, but just checking for the key on the directory inode during
+ * the final filesystem operation doesn't guarantee that the key was available
+ * during the preceding dentry lookup. And the key must have already been
+ * available during the dentry lookup in order for it to have been checked
+ * whether the filename already exists in the directory and for the new file's
+ * dentry not to be invalidated due to it incorrectly having the no-key flag.
+ *
+ * Return: %true if the dentry is a no-key name
+ */
+static inline bool fscrypt_is_nokey_name(const struct dentry *dentry)
+{
+ return dentry->d_flags & DCACHE_ENCRYPTED_NAME;
+}
+
+/* crypto.c */
+void fscrypt_enqueue_decrypt_work(struct work_struct *);
+
+struct page *fscrypt_encrypt_pagecache_blocks(struct page *page,
+ unsigned int len,
+ unsigned int offs,
+ gfp_t gfp_flags);
+int fscrypt_encrypt_block_inplace(const struct inode *inode, struct page *page,
+ unsigned int len, unsigned int offs,
+ u64 lblk_num, gfp_t gfp_flags);
+
+int fscrypt_decrypt_pagecache_blocks(struct page *page, unsigned int len,
+ unsigned int offs);
+int fscrypt_decrypt_block_inplace(const struct inode *inode, struct page *page,
+ unsigned int len, unsigned int offs,
+ u64 lblk_num);
+
+static inline bool fscrypt_is_bounce_page(struct page *page)
+{
+ return page->mapping == NULL;
+}
+
+static inline struct page *fscrypt_pagecache_page(struct page *bounce_page)
+{
+ return (struct page *)page_private(bounce_page);
+}
+
+void fscrypt_free_bounce_page(struct page *bounce_page);
+int fscrypt_d_revalidate(struct dentry *dentry, unsigned int flags);
+
+/* policy.c */
+int fscrypt_ioctl_set_policy(struct file *filp, const void __user *arg);
+int fscrypt_ioctl_get_policy(struct file *filp, void __user *arg);
+int fscrypt_ioctl_get_policy_ex(struct file *filp, void __user *arg);
+int fscrypt_ioctl_get_nonce(struct file *filp, void __user *arg);
+int fscrypt_has_permitted_context(struct inode *parent, struct inode *child);
+int fscrypt_inherit_context(struct inode *parent, struct inode *child,
+ void *fs_data, bool preload);
+
+struct fscrypt_dummy_context {
+ const union fscrypt_context *ctx;
+};
+
+int fscrypt_set_test_dummy_encryption(struct super_block *sb,
+ const substring_t *arg,
+ struct fscrypt_dummy_context *dummy_ctx);
+void fscrypt_show_test_dummy_encryption(struct seq_file *seq, char sep,
+ struct super_block *sb);
+static inline void
+fscrypt_free_dummy_context(struct fscrypt_dummy_context *dummy_ctx)
+{
+ kfree(dummy_ctx->ctx);
+ dummy_ctx->ctx = NULL;
+}
+
+/* keyring.c */
+void fscrypt_sb_free(struct super_block *sb);
+int fscrypt_ioctl_add_key(struct file *filp, void __user *arg);
+int fscrypt_ioctl_remove_key(struct file *filp, void __user *arg);
+int fscrypt_ioctl_remove_key_all_users(struct file *filp, void __user *arg);
+int fscrypt_ioctl_get_key_status(struct file *filp, void __user *arg);
+
+/* keysetup.c */
+int fscrypt_get_encryption_info(struct inode *inode);
+void fscrypt_put_encryption_info(struct inode *inode);
+void fscrypt_free_inode(struct inode *inode);
+int fscrypt_drop_inode(struct inode *inode);
+
+/* fname.c */
+int fscrypt_setup_filename(struct inode *inode, const struct qstr *iname,
+ int lookup, struct fscrypt_name *fname);
+
+static inline void fscrypt_free_filename(struct fscrypt_name *fname)
+{
+ kfree(fname->crypto_buf.name);
+}
+
+int fscrypt_fname_alloc_buffer(const struct inode *inode, u32 max_encrypted_len,
+ struct fscrypt_str *crypto_str);
+void fscrypt_fname_free_buffer(struct fscrypt_str *crypto_str);
+int fscrypt_fname_disk_to_usr(const struct inode *inode,
+ u32 hash, u32 minor_hash,
+ const struct fscrypt_str *iname,
+ struct fscrypt_str *oname);
+bool fscrypt_match_name(const struct fscrypt_name *fname,
+ const u8 *de_name, u32 de_name_len);
+u64 fscrypt_fname_siphash(const struct inode *dir, const struct qstr *name);
+
+/* bio.c */
+void fscrypt_decrypt_bio(struct bio *bio);
+int fscrypt_zeroout_range(const struct inode *inode, pgoff_t lblk,
+ sector_t pblk, unsigned int len);
+
+/* hooks.c */
+int fscrypt_file_open(struct inode *inode, struct file *filp);
+int __fscrypt_prepare_link(struct inode *inode, struct inode *dir,
+ struct dentry *dentry);
+int __fscrypt_prepare_rename(struct inode *old_dir, struct dentry *old_dentry,
+ struct inode *new_dir, struct dentry *new_dentry,
+ unsigned int flags);
+int __fscrypt_prepare_lookup(struct inode *dir, struct dentry *dentry,
+ struct fscrypt_name *fname);
+int fscrypt_prepare_setflags(struct inode *inode,
+ unsigned int oldflags, unsigned int flags);
+int __fscrypt_prepare_symlink(struct inode *dir, unsigned int len,
+ unsigned int max_len,
+ struct fscrypt_str *disk_link);
+int __fscrypt_encrypt_symlink(struct inode *inode, const char *target,
+ unsigned int len, struct fscrypt_str *disk_link);
+const char *fscrypt_get_symlink(struct inode *inode, const void *caddr,
+ unsigned int max_size,
+ struct delayed_call *done);
+int fscrypt_symlink_getattr(const struct path *path, struct kstat *stat);
+
+#else /* !CONFIG_FS_ENCRYPTION */
+
+static inline bool fscrypt_has_encryption_key(const struct inode *inode)
+{
+ return false;
+}
+
+static inline bool fscrypt_needs_contents_encryption(const struct inode *inode)
+{
+ return false;
+}
+
+static inline const union fscrypt_context *
+fscrypt_get_dummy_context(struct super_block *sb)
+{
+ return NULL;
+}
+
+static inline void fscrypt_handle_d_move(struct dentry *dentry)
+{
+}
+
+static inline bool fscrypt_is_nokey_name(const struct dentry *dentry)
+{
+ return false;
+}
+
+/* crypto.c */
+static inline void fscrypt_enqueue_decrypt_work(struct work_struct *work)
+{
+}
+
+static inline struct page *fscrypt_encrypt_pagecache_blocks(struct page *page,
+ unsigned int len,
+ unsigned int offs,
+ gfp_t gfp_flags)
+{
+ return ERR_PTR(-EOPNOTSUPP);
+}
+
+static inline int fscrypt_encrypt_block_inplace(const struct inode *inode,
+ struct page *page,
+ unsigned int len,
+ unsigned int offs, u64 lblk_num,
+ gfp_t gfp_flags)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline int fscrypt_decrypt_pagecache_blocks(struct page *page,
+ unsigned int len,
+ unsigned int offs)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline int fscrypt_decrypt_block_inplace(const struct inode *inode,
+ struct page *page,
+ unsigned int len,
+ unsigned int offs, u64 lblk_num)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline bool fscrypt_is_bounce_page(struct page *page)
+{
+ return false;
+}
+
+static inline struct page *fscrypt_pagecache_page(struct page *bounce_page)
+{
+ WARN_ON_ONCE(1);
+ return ERR_PTR(-EINVAL);
+}
+
+static inline void fscrypt_free_bounce_page(struct page *bounce_page)
+{
+}
+
+/* policy.c */
+static inline int fscrypt_ioctl_set_policy(struct file *filp,
+ const void __user *arg)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline int fscrypt_ioctl_get_policy(struct file *filp, void __user *arg)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline int fscrypt_ioctl_get_policy_ex(struct file *filp,
+ void __user *arg)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline int fscrypt_ioctl_get_nonce(struct file *filp, void __user *arg)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline int fscrypt_has_permitted_context(struct inode *parent,
+ struct inode *child)
+{
+ return 0;
+}
+
+static inline int fscrypt_inherit_context(struct inode *parent,
+ struct inode *child,
+ void *fs_data, bool preload)
+{
+ return -EOPNOTSUPP;
+}
+
+struct fscrypt_dummy_context {
+};
+
+static inline void fscrypt_show_test_dummy_encryption(struct seq_file *seq,
+ char sep,
+ struct super_block *sb)
+{
+}
+
+static inline void
+fscrypt_free_dummy_context(struct fscrypt_dummy_context *dummy_ctx)
+{
+}
+
+/* keyring.c */
+static inline void fscrypt_sb_free(struct super_block *sb)
+{
+}
+
+static inline int fscrypt_ioctl_add_key(struct file *filp, void __user *arg)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline int fscrypt_ioctl_remove_key(struct file *filp, void __user *arg)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline int fscrypt_ioctl_remove_key_all_users(struct file *filp,
+ void __user *arg)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline int fscrypt_ioctl_get_key_status(struct file *filp,
+ void __user *arg)
+{
+ return -EOPNOTSUPP;
+}
+
+/* keysetup.c */
+static inline int fscrypt_get_encryption_info(struct inode *inode)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline void fscrypt_put_encryption_info(struct inode *inode)
+{
+ return;
+}
+
+static inline void fscrypt_free_inode(struct inode *inode)
+{
+}
+
+static inline int fscrypt_drop_inode(struct inode *inode)
+{
+ return 0;
+}
+
+ /* fname.c */
+static inline int fscrypt_setup_filename(struct inode *dir,
+ const struct qstr *iname,
+ int lookup, struct fscrypt_name *fname)
+{
+ if (IS_ENCRYPTED(dir))
+ return -EOPNOTSUPP;
+
+ memset(fname, 0, sizeof(*fname));
+ fname->usr_fname = iname;
+ fname->disk_name.name = (unsigned char *)iname->name;
+ fname->disk_name.len = iname->len;
+ return 0;
+}
+
+static inline void fscrypt_free_filename(struct fscrypt_name *fname)
+{
+ return;
+}
+
+static inline int fscrypt_fname_alloc_buffer(const struct inode *inode,
+ u32 max_encrypted_len,
+ struct fscrypt_str *crypto_str)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline void fscrypt_fname_free_buffer(struct fscrypt_str *crypto_str)
+{
+ return;
+}
+
+static inline int fscrypt_fname_disk_to_usr(const struct inode *inode,
+ u32 hash, u32 minor_hash,
+ const struct fscrypt_str *iname,
+ struct fscrypt_str *oname)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline bool fscrypt_match_name(const struct fscrypt_name *fname,
+ const u8 *de_name, u32 de_name_len)
+{
+ /* Encryption support disabled; use standard comparison */
+ if (de_name_len != fname->disk_name.len)
+ return false;
+ return !memcmp(de_name, fname->disk_name.name, fname->disk_name.len);
+}
+
+static inline u64 fscrypt_fname_siphash(const struct inode *dir,
+ const struct qstr *name)
+{
+ WARN_ON_ONCE(1);
+ return 0;
+}
+
+/* bio.c */
+static inline void fscrypt_decrypt_bio(struct bio *bio)
+{
+}
+
+static inline int fscrypt_zeroout_range(const struct inode *inode, pgoff_t lblk,
+ sector_t pblk, unsigned int len)
+{
+ return -EOPNOTSUPP;
+}
+
+/* hooks.c */
+
+static inline int fscrypt_file_open(struct inode *inode, struct file *filp)
+{
+ if (IS_ENCRYPTED(inode))
+ return -EOPNOTSUPP;
+ return 0;
+}
+
+static inline int __fscrypt_prepare_link(struct inode *inode, struct inode *dir,
+ struct dentry *dentry)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline int __fscrypt_prepare_rename(struct inode *old_dir,
+ struct dentry *old_dentry,
+ struct inode *new_dir,
+ struct dentry *new_dentry,
+ unsigned int flags)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline int __fscrypt_prepare_lookup(struct inode *dir,
+ struct dentry *dentry,
+ struct fscrypt_name *fname)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline int fscrypt_prepare_setflags(struct inode *inode,
+ unsigned int oldflags,
+ unsigned int flags)
+{
+ return 0;
+}
+
+static inline int __fscrypt_prepare_symlink(struct inode *dir,
+ unsigned int len,
+ unsigned int max_len,
+ struct fscrypt_str *disk_link)
+{
+ return -EOPNOTSUPP;
+}
+
+
+static inline int __fscrypt_encrypt_symlink(struct inode *inode,
+ const char *target,
+ unsigned int len,
+ struct fscrypt_str *disk_link)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline const char *fscrypt_get_symlink(struct inode *inode,
+ const void *caddr,
+ unsigned int max_size,
+ struct delayed_call *done)
+{
+ return ERR_PTR(-EOPNOTSUPP);
+}
+
+static inline int fscrypt_symlink_getattr(const struct path *path,
+ struct kstat *stat)
+{
+ return -EOPNOTSUPP;
+}
+
+#endif /* !CONFIG_FS_ENCRYPTION */
+
+/* inline_crypt.c */
+#ifdef CONFIG_FS_ENCRYPTION_INLINE_CRYPT
+extern bool fscrypt_inode_uses_inline_crypto(const struct inode *inode);
+
+extern bool fscrypt_inode_uses_fs_layer_crypto(const struct inode *inode);
+
+extern void fscrypt_set_bio_crypt_ctx(struct bio *bio,
+ const struct inode *inode,
+ u64 first_lblk, gfp_t gfp_mask);
+
+extern void fscrypt_set_bio_crypt_ctx_bh(struct bio *bio,
+ const struct buffer_head *first_bh,
+ gfp_t gfp_mask);
+
+extern bool fscrypt_mergeable_bio(struct bio *bio, const struct inode *inode,
+ u64 next_lblk);
+
+extern bool fscrypt_mergeable_bio_bh(struct bio *bio,
+ const struct buffer_head *next_bh);
+
+bool fscrypt_dio_supported(struct kiocb *iocb, struct iov_iter *iter);
+
+int fscrypt_limit_dio_pages(const struct inode *inode, loff_t pos,
+ int nr_pages);
+
+#else /* CONFIG_FS_ENCRYPTION_INLINE_CRYPT */
+static inline bool fscrypt_inode_uses_inline_crypto(const struct inode *inode)
+{
+ return false;
+}
+
+static inline bool fscrypt_inode_uses_fs_layer_crypto(const struct inode *inode)
+{
+ return IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode);
+}
+
+static inline void fscrypt_set_bio_crypt_ctx(struct bio *bio,
+ const struct inode *inode,
+ u64 first_lblk, gfp_t gfp_mask) { }
+
+static inline void fscrypt_set_bio_crypt_ctx_bh(
+ struct bio *bio,
+ const struct buffer_head *first_bh,
+ gfp_t gfp_mask) { }
+
+static inline bool fscrypt_mergeable_bio(struct bio *bio,
+ const struct inode *inode,
+ u64 next_lblk)
+{
+ return true;
+}
+
+static inline bool fscrypt_mergeable_bio_bh(struct bio *bio,
+ const struct buffer_head *next_bh)
+{
+ return true;
+}
+
+static inline bool fscrypt_dio_supported(struct kiocb *iocb,
+ struct iov_iter *iter)
+{
+ const struct inode *inode = file_inode(iocb->ki_filp);
+
+ return !fscrypt_needs_contents_encryption(inode);
+}
+
+static inline int fscrypt_limit_dio_pages(const struct inode *inode, loff_t pos,
+ int nr_pages)
+{
+ return nr_pages;
+}
+#endif /* !CONFIG_FS_ENCRYPTION_INLINE_CRYPT */
+
+#if IS_ENABLED(CONFIG_FS_ENCRYPTION) && IS_ENABLED(CONFIG_DM_DEFAULT_KEY)
+static inline bool
+fscrypt_inode_should_skip_dm_default_key(const struct inode *inode)
+{
+ return IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode);
+}
#else
-#include <linux/fscrypt_notsupp.h>
+static inline bool
+fscrypt_inode_should_skip_dm_default_key(const struct inode *inode)
+{
+ return false;
+}
#endif
/**
- * fscrypt_require_key - require an inode's encryption key
+ * fscrypt_require_key() - require an inode's encryption key
* @inode: the inode we need the key for
*
* If the inode is encrypted, set up its encryption key if not already done.
@@ -76,7 +688,8 @@ static inline int fscrypt_require_key(struct inode *inode)
}
/**
- * fscrypt_prepare_link - prepare to link an inode into a possibly-encrypted directory
+ * fscrypt_prepare_link() - prepare to link an inode into a possibly-encrypted
+ * directory
* @old_dentry: an existing dentry for the inode being linked
* @dir: the target directory
* @dentry: negative dentry for the target filename
@@ -103,7 +716,8 @@ static inline int fscrypt_prepare_link(struct dentry *old_dentry,
}
/**
- * fscrypt_prepare_rename - prepare for a rename between possibly-encrypted directories
+ * fscrypt_prepare_rename() - prepare for a rename between possibly-encrypted
+ * directories
* @old_dir: source directory
* @old_dentry: dentry for source file
* @new_dir: target directory
@@ -136,7 +750,8 @@ static inline int fscrypt_prepare_rename(struct inode *old_dir,
}
/**
- * fscrypt_prepare_lookup - prepare to lookup a name in a possibly-encrypted directory
+ * fscrypt_prepare_lookup() - prepare to lookup a name in a possibly-encrypted
+ * directory
* @dir: directory being searched
* @dentry: filename being looked up
* @fname: (output) the name to use to search the on-disk directory
@@ -147,8 +762,9 @@ static inline int fscrypt_prepare_rename(struct inode *old_dir,
* filenames are presented in encrypted form. Therefore, we'll try to set up
* the directory's encryption key, but even without it the lookup can continue.
*
- * This also installs a custom ->d_revalidate() method which will invalidate the
- * dentry if it was created without the key and the key is later added.
+ * After calling this function, a filesystem should ensure that it's dentry
+ * operations contain fscrypt_d_revalidate if DCACHE_ENCRYPTED_NAME was set,
+ * so that the dentry can be invalidated if the key is later added.
*
* Return: 0 on success; -ENOENT if key is unavailable but the filename isn't a
* correctly formed encoded ciphertext name, so a negative dentry should be
@@ -169,7 +785,8 @@ static inline int fscrypt_prepare_lookup(struct inode *dir,
}
/**
- * fscrypt_prepare_setattr - prepare to change a possibly-encrypted inode's attributes
+ * fscrypt_prepare_setattr() - prepare to change a possibly-encrypted inode's
+ * attributes
* @dentry: dentry through which the inode is being changed
* @attr: attributes to change
*
@@ -194,7 +811,7 @@ static inline int fscrypt_prepare_setattr(struct dentry *dentry,
}
/**
- * fscrypt_prepare_symlink - prepare to create a possibly-encrypted symlink
+ * fscrypt_prepare_symlink() - prepare to create a possibly-encrypted symlink
* @dir: directory in which the symlink is being created
* @target: plaintext symlink target
* @len: length of @target excluding null terminator
@@ -222,7 +839,7 @@ static inline int fscrypt_prepare_symlink(struct inode *dir,
unsigned int max_len,
struct fscrypt_str *disk_link)
{
- if (IS_ENCRYPTED(dir) || fscrypt_dummy_context_enabled(dir))
+ if (IS_ENCRYPTED(dir) || fscrypt_get_dummy_context(dir->i_sb) != NULL)
return __fscrypt_prepare_symlink(dir, len, max_len, disk_link);
disk_link->name = (unsigned char *)target;
@@ -233,7 +850,7 @@ static inline int fscrypt_prepare_symlink(struct inode *dir,
}
/**
- * fscrypt_encrypt_symlink - encrypt the symlink target if needed
+ * fscrypt_encrypt_symlink() - encrypt the symlink target if needed
* @inode: symlink inode
* @target: plaintext symlink target
* @len: length of @target excluding null terminator
@@ -257,4 +874,15 @@ static inline int fscrypt_encrypt_symlink(struct inode *inode,
return 0;
}
+/* If *pagep is a bounce page, free it and set *pagep to the pagecache page */
+static inline void fscrypt_finalize_bounce_page(struct page **pagep)
+{
+ struct page *page = *pagep;
+
+ if (fscrypt_is_bounce_page(page)) {
+ *pagep = fscrypt_pagecache_page(page);
+ fscrypt_free_bounce_page(page);
+ }
+}
+
#endif /* _LINUX_FSCRYPT_H */
diff --git a/include/linux/fscrypt_notsupp.h b/include/linux/fscrypt_notsupp.h
deleted file mode 100644
index 6e95c5a..0000000
--- a/include/linux/fscrypt_notsupp.h
+++ /dev/null
@@ -1,243 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * fscrypt_notsupp.h
- *
- * This stubs out the fscrypt functions for filesystems configured without
- * encryption support.
- *
- * Do not include this file directly. Use fscrypt.h instead!
- */
-#ifndef _LINUX_FSCRYPT_H
-#error "Incorrect include of linux/fscrypt_notsupp.h!"
-#endif
-
-#ifndef _LINUX_FSCRYPT_NOTSUPP_H
-#define _LINUX_FSCRYPT_NOTSUPP_H
-
-static inline bool fscrypt_has_encryption_key(const struct inode *inode)
-{
- return false;
-}
-
-static inline bool fscrypt_dummy_context_enabled(struct inode *inode)
-{
- return false;
-}
-
-static inline bool fscrypt_is_nokey_name(const struct dentry *dentry)
-{
- return false;
-}
-
-/* crypto.c */
-static inline void fscrypt_enqueue_decrypt_work(struct work_struct *work)
-{
-}
-
-static inline struct fscrypt_ctx *fscrypt_get_ctx(const struct inode *inode,
- gfp_t gfp_flags)
-{
- return ERR_PTR(-EOPNOTSUPP);
-}
-
-static inline void fscrypt_release_ctx(struct fscrypt_ctx *ctx)
-{
- return;
-}
-
-static inline struct page *fscrypt_encrypt_page(const struct inode *inode,
- struct page *page,
- unsigned int len,
- unsigned int offs,
- u64 lblk_num, gfp_t gfp_flags)
-{
- return ERR_PTR(-EOPNOTSUPP);
-}
-
-static inline int fscrypt_decrypt_page(const struct inode *inode,
- struct page *page,
- unsigned int len, unsigned int offs,
- u64 lblk_num)
-{
- return -EOPNOTSUPP;
-}
-
-static inline struct page *fscrypt_control_page(struct page *page)
-{
- WARN_ON_ONCE(1);
- return ERR_PTR(-EINVAL);
-}
-
-static inline void fscrypt_restore_control_page(struct page *page)
-{
- return;
-}
-
-/* policy.c */
-static inline int fscrypt_ioctl_set_policy(struct file *filp,
- const void __user *arg)
-{
- return -EOPNOTSUPP;
-}
-
-static inline int fscrypt_ioctl_get_policy(struct file *filp, void __user *arg)
-{
- return -EOPNOTSUPP;
-}
-
-static inline int fscrypt_has_permitted_context(struct inode *parent,
- struct inode *child)
-{
- return 0;
-}
-
-static inline int fscrypt_inherit_context(struct inode *parent,
- struct inode *child,
- void *fs_data, bool preload)
-{
- return -EOPNOTSUPP;
-}
-
-/* keyinfo.c */
-static inline int fscrypt_get_encryption_info(struct inode *inode)
-{
- return -EOPNOTSUPP;
-}
-
-static inline void fscrypt_put_encryption_info(struct inode *inode)
-{
- return;
-}
-
- /* fname.c */
-static inline int fscrypt_setup_filename(struct inode *dir,
- const struct qstr *iname,
- int lookup, struct fscrypt_name *fname)
-{
- if (IS_ENCRYPTED(dir))
- return -EOPNOTSUPP;
-
- memset(fname, 0, sizeof(*fname));
- fname->usr_fname = iname;
- fname->disk_name.name = (unsigned char *)iname->name;
- fname->disk_name.len = iname->len;
- return 0;
-}
-
-static inline void fscrypt_free_filename(struct fscrypt_name *fname)
-{
- return;
-}
-
-static inline int fscrypt_fname_alloc_buffer(const struct inode *inode,
- u32 max_encrypted_len,
- struct fscrypt_str *crypto_str)
-{
- return -EOPNOTSUPP;
-}
-
-static inline void fscrypt_fname_free_buffer(struct fscrypt_str *crypto_str)
-{
- return;
-}
-
-static inline int fscrypt_fname_disk_to_usr(struct inode *inode,
- u32 hash, u32 minor_hash,
- const struct fscrypt_str *iname,
- struct fscrypt_str *oname)
-{
- return -EOPNOTSUPP;
-}
-
-static inline bool fscrypt_match_name(const struct fscrypt_name *fname,
- const u8 *de_name, u32 de_name_len)
-{
- /* Encryption support disabled; use standard comparison */
- if (de_name_len != fname->disk_name.len)
- return false;
- return !memcmp(de_name, fname->disk_name.name, fname->disk_name.len);
-}
-
-/* bio.c */
-static inline void fscrypt_decrypt_bio(struct bio *bio)
-{
-}
-
-static inline void fscrypt_enqueue_decrypt_bio(struct fscrypt_ctx *ctx,
- struct bio *bio)
-{
-}
-
-static inline void fscrypt_pullback_bio_page(struct page **page, bool restore)
-{
- return;
-}
-
-static inline int fscrypt_zeroout_range(const struct inode *inode, pgoff_t lblk,
- sector_t pblk, unsigned int len)
-{
- return -EOPNOTSUPP;
-}
-
-/* hooks.c */
-
-static inline int fscrypt_file_open(struct inode *inode, struct file *filp)
-{
- if (IS_ENCRYPTED(inode))
- return -EOPNOTSUPP;
- return 0;
-}
-
-static inline int __fscrypt_prepare_link(struct inode *inode, struct inode *dir,
- struct dentry *dentry)
-{
- return -EOPNOTSUPP;
-}
-
-static inline int __fscrypt_prepare_rename(struct inode *old_dir,
- struct dentry *old_dentry,
- struct inode *new_dir,
- struct dentry *new_dentry,
- unsigned int flags)
-{
- return -EOPNOTSUPP;
-}
-
-static inline int __fscrypt_prepare_lookup(struct inode *dir,
- struct dentry *dentry,
- struct fscrypt_name *fname)
-{
- return -EOPNOTSUPP;
-}
-
-static inline int __fscrypt_prepare_symlink(struct inode *dir,
- unsigned int len,
- unsigned int max_len,
- struct fscrypt_str *disk_link)
-{
- return -EOPNOTSUPP;
-}
-
-static inline int __fscrypt_encrypt_symlink(struct inode *inode,
- const char *target,
- unsigned int len,
- struct fscrypt_str *disk_link)
-{
- return -EOPNOTSUPP;
-}
-
-static inline const char *fscrypt_get_symlink(struct inode *inode,
- const void *caddr,
- unsigned int max_size,
- struct delayed_call *done)
-{
- return ERR_PTR(-EOPNOTSUPP);
-}
-
-static inline int fscrypt_symlink_getattr(const struct path *path,
- struct kstat *stat)
-{
- return -EOPNOTSUPP;
-}
-
-#endif /* _LINUX_FSCRYPT_NOTSUPP_H */
diff --git a/include/linux/fscrypt_supp.h b/include/linux/fscrypt_supp.h
deleted file mode 100644
index f4cb487..0000000
--- a/include/linux/fscrypt_supp.h
+++ /dev/null
@@ -1,236 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * fscrypt_supp.h
- *
- * Do not include this file directly. Use fscrypt.h instead!
- */
-#ifndef _LINUX_FSCRYPT_H
-#error "Incorrect include of linux/fscrypt_supp.h!"
-#endif
-
-#ifndef _LINUX_FSCRYPT_SUPP_H
-#define _LINUX_FSCRYPT_SUPP_H
-
-#include <linux/mm.h>
-#include <linux/slab.h>
-
-/*
- * fscrypt superblock flags
- */
-#define FS_CFLG_OWN_PAGES (1U << 1)
-
-/*
- * crypto operations for filesystems
- */
-struct fscrypt_operations {
- unsigned int flags;
- const char *key_prefix;
- int (*get_context)(struct inode *, void *, size_t);
- int (*set_context)(struct inode *, const void *, size_t, void *);
- bool (*dummy_context)(struct inode *);
- bool (*empty_dir)(struct inode *);
- unsigned int max_namelen;
-};
-
-struct fscrypt_ctx {
- union {
- struct {
- struct page *bounce_page; /* Ciphertext page */
- struct page *control_page; /* Original page */
- } w;
- struct {
- struct bio *bio;
- struct work_struct work;
- } r;
- struct list_head free_list; /* Free list */
- };
- u8 flags; /* Flags */
-};
-
-static inline bool fscrypt_has_encryption_key(const struct inode *inode)
-{
- return (inode->i_crypt_info != NULL);
-}
-
-static inline bool fscrypt_dummy_context_enabled(struct inode *inode)
-{
- return inode->i_sb->s_cop->dummy_context &&
- inode->i_sb->s_cop->dummy_context(inode);
-}
-
-/**
- * fscrypt_is_nokey_name() - test whether a dentry is a no-key name
- * @dentry: the dentry to check
- *
- * This returns true if the dentry is a no-key dentry. A no-key dentry is a
- * dentry that was created in an encrypted directory that hasn't had its
- * encryption key added yet. Such dentries may be either positive or negative.
- *
- * When a filesystem is asked to create a new filename in an encrypted directory
- * and the new filename's dentry is a no-key dentry, it must fail the operation
- * with ENOKEY. This includes ->create(), ->mkdir(), ->mknod(), ->symlink(),
- * ->rename(), and ->link(). (However, ->rename() and ->link() are already
- * handled by fscrypt_prepare_rename() and fscrypt_prepare_link().)
- *
- * This is necessary because creating a filename requires the directory's
- * encryption key, but just checking for the key on the directory inode during
- * the final filesystem operation doesn't guarantee that the key was available
- * during the preceding dentry lookup. And the key must have already been
- * available during the dentry lookup in order for it to have been checked
- * whether the filename already exists in the directory and for the new file's
- * dentry not to be invalidated due to it incorrectly having the no-key flag.
- *
- * Return: %true if the dentry is a no-key name
- */
-static inline bool fscrypt_is_nokey_name(const struct dentry *dentry)
-{
- return dentry->d_flags & DCACHE_ENCRYPTED_NAME;
-}
-
-/* crypto.c */
-extern void fscrypt_enqueue_decrypt_work(struct work_struct *);
-extern struct fscrypt_ctx *fscrypt_get_ctx(const struct inode *, gfp_t);
-extern void fscrypt_release_ctx(struct fscrypt_ctx *);
-extern struct page *fscrypt_encrypt_page(const struct inode *, struct page *,
- unsigned int, unsigned int,
- u64, gfp_t);
-extern int fscrypt_decrypt_page(const struct inode *, struct page *, unsigned int,
- unsigned int, u64);
-
-static inline struct page *fscrypt_control_page(struct page *page)
-{
- return ((struct fscrypt_ctx *)page_private(page))->w.control_page;
-}
-
-extern void fscrypt_restore_control_page(struct page *);
-
-/* policy.c */
-extern int fscrypt_ioctl_set_policy(struct file *, const void __user *);
-extern int fscrypt_ioctl_get_policy(struct file *, void __user *);
-extern int fscrypt_has_permitted_context(struct inode *, struct inode *);
-extern int fscrypt_inherit_context(struct inode *, struct inode *,
- void *, bool);
-/* keyinfo.c */
-extern int fscrypt_get_encryption_info(struct inode *);
-extern void fscrypt_put_encryption_info(struct inode *);
-
-/* fname.c */
-extern int fscrypt_setup_filename(struct inode *, const struct qstr *,
- int lookup, struct fscrypt_name *);
-
-static inline void fscrypt_free_filename(struct fscrypt_name *fname)
-{
- kfree(fname->crypto_buf.name);
-}
-
-extern int fscrypt_fname_alloc_buffer(const struct inode *, u32,
- struct fscrypt_str *);
-extern void fscrypt_fname_free_buffer(struct fscrypt_str *);
-extern int fscrypt_fname_disk_to_usr(struct inode *, u32, u32,
- const struct fscrypt_str *, struct fscrypt_str *);
-
-#define FSCRYPT_FNAME_MAX_UNDIGESTED_SIZE 32
-
-/* Extracts the second-to-last ciphertext block; see explanation below */
-#define FSCRYPT_FNAME_DIGEST(name, len) \
- ((name) + round_down((len) - FS_CRYPTO_BLOCK_SIZE - 1, \
- FS_CRYPTO_BLOCK_SIZE))
-
-#define FSCRYPT_FNAME_DIGEST_SIZE FS_CRYPTO_BLOCK_SIZE
-
-/**
- * fscrypt_digested_name - alternate identifier for an on-disk filename
- *
- * When userspace lists an encrypted directory without access to the key,
- * filenames whose ciphertext is longer than FSCRYPT_FNAME_MAX_UNDIGESTED_SIZE
- * bytes are shown in this abbreviated form (base64-encoded) rather than as the
- * full ciphertext (base64-encoded). This is necessary to allow supporting
- * filenames up to NAME_MAX bytes, since base64 encoding expands the length.
- *
- * To make it possible for filesystems to still find the correct directory entry
- * despite not knowing the full on-disk name, we encode any filesystem-specific
- * 'hash' and/or 'minor_hash' which the filesystem may need for its lookups,
- * followed by the second-to-last ciphertext block of the filename. Due to the
- * use of the CBC-CTS encryption mode, the second-to-last ciphertext block
- * depends on the full plaintext. (Note that ciphertext stealing causes the
- * last two blocks to appear "flipped".) This makes accidental collisions very
- * unlikely: just a 1 in 2^128 chance for two filenames to collide even if they
- * share the same filesystem-specific hashes.
- *
- * However, this scheme isn't immune to intentional collisions, which can be
- * created by anyone able to create arbitrary plaintext filenames and view them
- * without the key. Making the "digest" be a real cryptographic hash like
- * SHA-256 over the full ciphertext would prevent this, although it would be
- * less efficient and harder to implement, especially since the filesystem would
- * need to calculate it for each directory entry examined during a search.
- */
-struct fscrypt_digested_name {
- u32 hash;
- u32 minor_hash;
- u8 digest[FSCRYPT_FNAME_DIGEST_SIZE];
-};
-
-/**
- * fscrypt_match_name() - test whether the given name matches a directory entry
- * @fname: the name being searched for
- * @de_name: the name from the directory entry
- * @de_name_len: the length of @de_name in bytes
- *
- * Normally @fname->disk_name will be set, and in that case we simply compare
- * that to the name stored in the directory entry. The only exception is that
- * if we don't have the key for an encrypted directory and a filename in it is
- * very long, then we won't have the full disk_name and we'll instead need to
- * match against the fscrypt_digested_name.
- *
- * Return: %true if the name matches, otherwise %false.
- */
-static inline bool fscrypt_match_name(const struct fscrypt_name *fname,
- const u8 *de_name, u32 de_name_len)
-{
- if (unlikely(!fname->disk_name.name)) {
- const struct fscrypt_digested_name *n =
- (const void *)fname->crypto_buf.name;
- if (WARN_ON_ONCE(fname->usr_fname->name[0] != '_'))
- return false;
- if (de_name_len <= FSCRYPT_FNAME_MAX_UNDIGESTED_SIZE)
- return false;
- return !memcmp(FSCRYPT_FNAME_DIGEST(de_name, de_name_len),
- n->digest, FSCRYPT_FNAME_DIGEST_SIZE);
- }
-
- if (de_name_len != fname->disk_name.len)
- return false;
- return !memcmp(de_name, fname->disk_name.name, fname->disk_name.len);
-}
-
-/* bio.c */
-extern void fscrypt_decrypt_bio(struct bio *);
-extern void fscrypt_enqueue_decrypt_bio(struct fscrypt_ctx *ctx,
- struct bio *bio);
-extern void fscrypt_pullback_bio_page(struct page **, bool);
-extern int fscrypt_zeroout_range(const struct inode *, pgoff_t, sector_t,
- unsigned int);
-
-/* hooks.c */
-extern int fscrypt_file_open(struct inode *inode, struct file *filp);
-extern int __fscrypt_prepare_link(struct inode *inode, struct inode *dir,
- struct dentry *dentry);
-extern int __fscrypt_prepare_rename(struct inode *old_dir,
- struct dentry *old_dentry,
- struct inode *new_dir,
- struct dentry *new_dentry,
- unsigned int flags);
-extern int __fscrypt_prepare_lookup(struct inode *dir, struct dentry *dentry,
- struct fscrypt_name *fname);
-extern int __fscrypt_prepare_symlink(struct inode *dir, unsigned int len,
- unsigned int max_len,
- struct fscrypt_str *disk_link);
-extern int __fscrypt_encrypt_symlink(struct inode *inode, const char *target,
- unsigned int len,
- struct fscrypt_str *disk_link);
-extern const char *fscrypt_get_symlink(struct inode *inode, const void *caddr,
- unsigned int max_size,
- struct delayed_call *done);
-int fscrypt_symlink_getattr(const struct path *path, struct kstat *stat);
-
-#endif /* _LINUX_FSCRYPT_SUPP_H */
diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h
index fd1ce10..f3eb2b2 100644
--- a/include/linux/fsnotify.h
+++ b/include/linux/fsnotify.h
@@ -211,11 +211,20 @@ static inline void fsnotify_open(struct file *file)
{
const struct path *path = &file->f_path;
struct inode *inode = file_inode(file);
+ struct path lower_path;
__u32 mask = FS_OPEN;
if (S_ISDIR(inode->i_mode))
mask |= FS_ISDIR;
+ if (path->dentry->d_op && path->dentry->d_op->d_canonical_path) {
+ path->dentry->d_op->d_canonical_path(path, &lower_path);
+ fsnotify_parent(&lower_path, NULL, mask);
+ fsnotify(lower_path.dentry->d_inode, mask, &lower_path,
+ FSNOTIFY_EVENT_PATH, NULL, 0);
+ path_put(&lower_path);
+ }
+
fsnotify_parent(path, NULL, mask);
fsnotify(inode, mask, path, FSNOTIFY_EVENT_PATH, NULL, 0);
}
diff --git a/include/linux/fsverity.h b/include/linux/fsverity.h
new file mode 100644
index 0000000..eb490bd8
--- /dev/null
+++ b/include/linux/fsverity.h
@@ -0,0 +1,233 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * fs-verity: read-only file-based authenticity protection
+ *
+ * This header declares the interface between the fs/verity/ support layer and
+ * filesystems that support fs-verity.
+ *
+ * Copyright 2019 Google LLC
+ */
+
+#ifndef _LINUX_FSVERITY_H
+#define _LINUX_FSVERITY_H
+
+#include <linux/fs.h>
+#include <uapi/linux/fsverity.h>
+
+/* Verity operations for filesystems */
+struct fsverity_operations {
+
+ /**
+ * Begin enabling verity on the given file.
+ *
+ * @filp: a readonly file descriptor for the file
+ *
+ * The filesystem must do any needed filesystem-specific preparations
+ * for enabling verity, e.g. evicting inline data. It also must return
+ * -EBUSY if verity is already being enabled on the given file.
+ *
+ * i_rwsem is held for write.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+ int (*begin_enable_verity)(struct file *filp);
+
+ /**
+ * End enabling verity on the given file.
+ *
+ * @filp: a readonly file descriptor for the file
+ * @desc: the verity descriptor to write, or NULL on failure
+ * @desc_size: size of verity descriptor, or 0 on failure
+ * @merkle_tree_size: total bytes the Merkle tree took up
+ *
+ * If desc == NULL, then enabling verity failed and the filesystem only
+ * must do any necessary cleanups. Else, it must also store the given
+ * verity descriptor to a fs-specific location associated with the inode
+ * and do any fs-specific actions needed to mark the inode as a verity
+ * inode, e.g. setting a bit in the on-disk inode. The filesystem is
+ * also responsible for setting the S_VERITY flag in the VFS inode.
+ *
+ * i_rwsem is held for write, but it may have been dropped between
+ * ->begin_enable_verity() and ->end_enable_verity().
+ *
+ * Return: 0 on success, -errno on failure
+ */
+ int (*end_enable_verity)(struct file *filp, const void *desc,
+ size_t desc_size, u64 merkle_tree_size);
+
+ /**
+ * Get the verity descriptor of the given inode.
+ *
+ * @inode: an inode with the S_VERITY flag set
+ * @buf: buffer in which to place the verity descriptor
+ * @bufsize: size of @buf, or 0 to retrieve the size only
+ *
+ * If bufsize == 0, then the size of the verity descriptor is returned.
+ * Otherwise the verity descriptor is written to 'buf' and its actual
+ * size is returned; -ERANGE is returned if it's too large. This may be
+ * called by multiple processes concurrently on the same inode.
+ *
+ * Return: the size on success, -errno on failure
+ */
+ int (*get_verity_descriptor)(struct inode *inode, void *buf,
+ size_t bufsize);
+
+ /**
+ * Read a Merkle tree page of the given inode.
+ *
+ * @inode: the inode
+ * @index: 0-based index of the page within the Merkle tree
+ * @num_ra_pages: The number of Merkle tree pages that should be
+ * prefetched starting at @index if the page at @index
+ * isn't already cached. Implementations may ignore this
+ * argument; it's only a performance optimization.
+ *
+ * This can be called at any time on an open verity file, as well as
+ * between ->begin_enable_verity() and ->end_enable_verity(). It may be
+ * called by multiple processes concurrently, even with the same page.
+ *
+ * Note that this must retrieve a *page*, not necessarily a *block*.
+ *
+ * Return: the page on success, ERR_PTR() on failure
+ */
+ struct page *(*read_merkle_tree_page)(struct inode *inode,
+ pgoff_t index,
+ unsigned long num_ra_pages);
+
+ /**
+ * Write a Merkle tree block to the given inode.
+ *
+ * @inode: the inode for which the Merkle tree is being built
+ * @buf: block to write
+ * @index: 0-based index of the block within the Merkle tree
+ * @log_blocksize: log base 2 of the Merkle tree block size
+ *
+ * This is only called between ->begin_enable_verity() and
+ * ->end_enable_verity().
+ *
+ * Return: 0 on success, -errno on failure
+ */
+ int (*write_merkle_tree_block)(struct inode *inode, const void *buf,
+ u64 index, int log_blocksize);
+};
+
+#ifdef CONFIG_FS_VERITY
+
+static inline struct fsverity_info *fsverity_get_info(const struct inode *inode)
+{
+ /* pairs with the cmpxchg() in fsverity_set_info() */
+ return READ_ONCE(inode->i_verity_info);
+}
+
+/* enable.c */
+
+int fsverity_ioctl_enable(struct file *filp, const void __user *arg);
+
+/* measure.c */
+
+int fsverity_ioctl_measure(struct file *filp, void __user *arg);
+
+/* open.c */
+
+int fsverity_file_open(struct inode *inode, struct file *filp);
+int fsverity_prepare_setattr(struct dentry *dentry, struct iattr *attr);
+void fsverity_cleanup_inode(struct inode *inode);
+
+/* verify.c */
+
+bool fsverity_verify_page(struct page *page);
+void fsverity_verify_bio(struct bio *bio);
+void fsverity_enqueue_verify_work(struct work_struct *work);
+
+#else /* !CONFIG_FS_VERITY */
+
+static inline struct fsverity_info *fsverity_get_info(const struct inode *inode)
+{
+ return NULL;
+}
+
+/* enable.c */
+
+static inline int fsverity_ioctl_enable(struct file *filp,
+ const void __user *arg)
+{
+ return -EOPNOTSUPP;
+}
+
+/* measure.c */
+
+static inline int fsverity_ioctl_measure(struct file *filp, void __user *arg)
+{
+ return -EOPNOTSUPP;
+}
+
+/* open.c */
+
+static inline int fsverity_file_open(struct inode *inode, struct file *filp)
+{
+ return IS_VERITY(inode) ? -EOPNOTSUPP : 0;
+}
+
+static inline int fsverity_prepare_setattr(struct dentry *dentry,
+ struct iattr *attr)
+{
+ return IS_VERITY(d_inode(dentry)) ? -EOPNOTSUPP : 0;
+}
+
+static inline void fsverity_cleanup_inode(struct inode *inode)
+{
+}
+
+/* verify.c */
+
+static inline bool fsverity_verify_page(struct page *page)
+{
+ WARN_ON(1);
+ return false;
+}
+
+static inline void fsverity_verify_bio(struct bio *bio)
+{
+ WARN_ON(1);
+}
+
+static inline void fsverity_enqueue_verify_work(struct work_struct *work)
+{
+ WARN_ON(1);
+}
+
+#endif /* !CONFIG_FS_VERITY */
+
+/**
+ * fsverity_active() - do reads from the inode need to go through fs-verity?
+ * @inode: inode to check
+ *
+ * This checks whether ->i_verity_info has been set.
+ *
+ * Filesystems call this from ->readpages() to check whether the pages need to
+ * be verified or not. Don't use IS_VERITY() for this purpose; it's subject to
+ * a race condition where the file is being read concurrently with
+ * FS_IOC_ENABLE_VERITY completing. (S_VERITY is set before ->i_verity_info.)
+ *
+ * Return: true if reads need to go through fs-verity, otherwise false
+ */
+static inline bool fsverity_active(const struct inode *inode)
+{
+ return fsverity_get_info(inode) != NULL;
+}
+
+#ifdef CONFIG_FS_VERITY_BUILTIN_SIGNATURES
+int __fsverity_verify_signature(const struct inode *inode, const u8 *signature,
+ u32 sig_size, const u8 *file_digest,
+ unsigned int digest_algorithm);
+#else /* !CONFIG_FS_VERITY_BUILTIN_SIGNATURES */
+static inline int __fsverity_verify_signature(const struct inode *inode,
+ const u8 *signature, u32 sig_size,
+ const u8 *file_digest,
+ unsigned int digest_algorithm)
+{
+ return 0;
+}
+#endif /* !CONFIG_FS_VERITY_BUILTIN_SIGNATURES */
+
+#endif /* _LINUX_FSVERITY_H */
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index dd16e82..677a5ea 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -224,8 +224,16 @@ extern enum ftrace_tracing_type_t ftrace_tracing_type;
int register_ftrace_function(struct ftrace_ops *ops);
int unregister_ftrace_function(struct ftrace_ops *ops);
+#ifdef CONFIG_CFI_CLANG
+/* Use a C stub with the correct type for CFI */
+static inline void ftrace_stub(unsigned long a0, unsigned long a1,
+ struct ftrace_ops *op, struct pt_regs *regs)
+{
+}
+#else
extern void ftrace_stub(unsigned long a0, unsigned long a1,
struct ftrace_ops *op, struct pt_regs *regs);
+#endif
#else /* !CONFIG_FUNCTION_TRACER */
/*
diff --git a/include/linux/fwnode.h b/include/linux/fwnode.h
index faebf0c..becec51 100644
--- a/include/linux/fwnode.h
+++ b/include/linux/fwnode.h
@@ -13,6 +13,7 @@
#define _LINUX_FWNODE_H_
#include <linux/types.h>
+#include <linux/android_kabi.h>
struct fwnode_operations;
struct device;
@@ -20,6 +21,12 @@ struct device;
struct fwnode_handle {
struct fwnode_handle *secondary;
const struct fwnode_operations *ops;
+ struct device *dev;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
/**
@@ -68,6 +75,44 @@ struct fwnode_reference_args {
* endpoint node.
* @graph_get_port_parent: Return the parent node of a port node.
* @graph_parse_endpoint: Parse endpoint for port and endpoint id.
+ * @add_links: Called after the device corresponding to the fwnode is added
+ * using device_add(). The function is expected to create device
+ * links to all the suppliers of the device that are available at
+ * the time this function is called. The function must NOT stop
+ * at the first failed device link if other unlinked supplier
+ * devices are present in the system. This is necessary for the
+ * driver/bus sync_state() callbacks to work correctly.
+ *
+ * For example, say Device-C depends on suppliers Device-S1 and
+ * Device-S2 and the dependency is listed in that order in the
+ * firmware. Say, S1 gets populated from the firmware after
+ * late_initcall_sync(). Say S2 is populated and probed way
+ * before that in device_initcall(). When C is populated, if this
+ * add_links() function doesn't continue past a "failed linking to
+ * S1" and continue linking C to S2, then S2 will get a
+ * sync_state() callback before C is probed. This is because from
+ * the perspective of S2, C was never a consumer when its
+ * sync_state() evaluation is done. To avoid this, the add_links()
+ * function has to go through all available suppliers of the
+ * device (that corresponds to this fwnode) and link to them
+ * before returning.
+ *
+ * If some suppliers are not yet available (indicated by an error
+ * return value), this function will be called again when other
+ * devices are added to allow creating device links to any newly
+ * available suppliers.
+ *
+ * Return 0 if device links have been successfully created to all
+ * the known suppliers of this device or if the supplier
+ * information is not known.
+ *
+ * Return -ENODEV if the suppliers needed for probing this device
+ * have not been registered yet (because device links can only be
+ * created to devices registered with the driver core).
+ *
+ * Return -EAGAIN if some of the suppliers of this device have not
+ * been registered yet, but none of those suppliers are necessary
+ * for probing the device.
*/
struct fwnode_operations {
struct fwnode_handle *(*get)(struct fwnode_handle *fwnode);
@@ -105,6 +150,8 @@ struct fwnode_operations {
(*graph_get_port_parent)(struct fwnode_handle *fwnode);
int (*graph_parse_endpoint)(const struct fwnode_handle *fwnode,
struct fwnode_endpoint *endpoint);
+ int (*add_links)(const struct fwnode_handle *fwnode,
+ struct device *dev);
};
#define fwnode_has_op(fwnode, op) \
@@ -125,5 +172,8 @@ struct fwnode_operations {
if (fwnode_has_op(fwnode, op)) \
(fwnode)->ops->op(fwnode, ## __VA_ARGS__); \
} while (false)
+#define get_dev_from_fwnode(fwnode) get_device((fwnode)->dev)
+void fw_devlink_pause(void);
+void fw_devlink_resume(void);
#endif
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index a488098..48770a0 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -17,6 +17,7 @@
#include <linux/percpu-refcount.h>
#include <linux/uuid.h>
#include <linux/blk_types.h>
+#include <linux/android_kabi.h>
#ifdef CONFIG_BLOCK
@@ -130,6 +131,11 @@ struct hd_struct {
#endif
struct percpu_ref ref;
struct rcu_work rcu_work;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
#define GENHD_FL_REMOVABLE 1
@@ -167,6 +173,9 @@ struct blk_integrity {
unsigned char tuple_size;
unsigned char interval_exp;
unsigned char tag_size;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
};
#endif /* CONFIG_BLK_DEV_INTEGRITY */
@@ -211,6 +220,12 @@ struct gendisk {
int node_id;
struct badblocks *bb;
struct lockdep_map lockdep_map;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
+
};
static inline struct gendisk *part_to_disk(struct hd_struct *part)
@@ -402,11 +417,10 @@ static inline void free_part_info(struct hd_struct *part)
extern void part_round_stats(struct request_queue *q, int cpu, struct hd_struct *part);
/* block/genhd.c */
-extern void device_add_disk(struct device *parent, struct gendisk *disk,
- const struct attribute_group **groups);
+extern void device_add_disk(struct device *parent, struct gendisk *disk);
static inline void add_disk(struct gendisk *disk)
{
- device_add_disk(NULL, disk, NULL);
+ device_add_disk(NULL, disk);
}
extern void device_add_disk_no_queue_reg(struct device *parent, struct gendisk *disk);
static inline void add_disk_no_queue_reg(struct gendisk *disk)
diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index f78d1e8..194da88 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -44,6 +44,7 @@ struct vm_area_struct;
#else
#define ___GFP_NOLOCKDEP 0
#endif
+#define ___GFP_CMA 0x1000000u
/* If the above are modified, __GFP_BITS_SHIFT may need updating */
/*
@@ -57,6 +58,7 @@ struct vm_area_struct;
#define __GFP_HIGHMEM ((__force gfp_t)___GFP_HIGHMEM)
#define __GFP_DMA32 ((__force gfp_t)___GFP_DMA32)
#define __GFP_MOVABLE ((__force gfp_t)___GFP_MOVABLE) /* ZONE_MOVABLE allowed */
+#define __GFP_CMA ((__force gfp_t)___GFP_CMA)
#define GFP_ZONEMASK (__GFP_DMA|__GFP_HIGHMEM|__GFP_DMA32|__GFP_MOVABLE)
/**
@@ -217,8 +219,13 @@ struct vm_area_struct;
#define __GFP_NOLOCKDEP ((__force gfp_t)___GFP_NOLOCKDEP)
/* Room for N __GFP_FOO bits */
-#define __GFP_BITS_SHIFT (23 + IS_ENABLED(CONFIG_LOCKDEP))
+#define __GFP_BITS_SHIFT (25)
+#ifdef CONFIG_LOCKDEP
#define __GFP_BITS_MASK ((__force gfp_t)((1 << __GFP_BITS_SHIFT) - 1))
+#else
+#define __GFP_BITS_MASK (((__force gfp_t)((1 << __GFP_BITS_SHIFT) - 1)) & \
+ ~0x800000u)
+#endif
/**
* DOC: Useful GFP flag combinations
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index a4d5eb3..6e0774d 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -47,6 +47,14 @@ struct gpio_irq_chip {
*/
const struct irq_domain_ops *domain_ops;
+#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
+ /**
+ * @parent_domain:
+ *
+ */
+ struct irq_domain *parent_domain;
+#endif
+
/**
* @handler:
*
diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index 0690679..e80602e 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -181,7 +181,12 @@ static inline struct page *
alloc_zeroed_user_highpage_movable(struct vm_area_struct *vma,
unsigned long vaddr)
{
+#ifndef CONFIG_CMA
return __alloc_zeroed_user_highpage(__GFP_MOVABLE, vma, vaddr);
+#else
+ return __alloc_zeroed_user_highpage(__GFP_MOVABLE|__GFP_CMA, vma,
+ vaddr);
+#endif
}
static inline void clear_highpage(struct page *page)
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index 542b4fa..1e9e5b1 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -15,13 +15,14 @@
#ifndef _LINUX_HRTIMER_H
#define _LINUX_HRTIMER_H
+#include <linux/hrtimer_defs.h>
#include <linux/rbtree.h>
-#include <linux/ktime.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/percpu.h>
#include <linux/timer.h>
#include <linux/timerqueue.h>
+#include <linux/android_kabi.h>
struct hrtimer_clock_base;
struct hrtimer_cpu_base;
@@ -115,6 +116,8 @@ struct hrtimer {
u8 state;
u8 is_rel;
u8 is_soft;
+
+ ANDROID_KABI_RESERVE(1);
};
/**
@@ -301,26 +304,12 @@ struct clock_event_device;
extern void hrtimer_interrupt(struct clock_event_device *dev);
-/*
- * The resolution of the clocks. The resolution value is returned in
- * the clock_getres() system call to give application programmers an
- * idea of the (in)accuracy of timers. Timer values are rounded up to
- * this resolution values.
- */
-# define HIGH_RES_NSEC 1
-# define KTIME_HIGH_RES (HIGH_RES_NSEC)
-# define MONOTONIC_RES_NSEC HIGH_RES_NSEC
-# define KTIME_MONOTONIC_RES KTIME_HIGH_RES
-
extern void clock_was_set_delayed(void);
extern unsigned int hrtimer_resolution;
#else
-# define MONOTONIC_RES_NSEC LOW_RES_NSEC
-# define KTIME_MONOTONIC_RES KTIME_LOW_RES
-
#define hrtimer_resolution (unsigned int)LOW_RES_NSEC
static inline void clock_was_set_delayed(void) { }
diff --git a/include/linux/hrtimer_defs.h b/include/linux/hrtimer_defs.h
new file mode 100644
index 0000000..2d3e3c5
--- /dev/null
+++ b/include/linux/hrtimer_defs.h
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_HRTIMER_DEFS_H
+#define _LINUX_HRTIMER_DEFS_H
+
+#include <linux/ktime.h>
+
+#ifdef CONFIG_HIGH_RES_TIMERS
+
+/*
+ * The resolution of the clocks. The resolution value is returned in
+ * the clock_getres() system call to give application programmers an
+ * idea of the (in)accuracy of timers. Timer values are rounded up to
+ * this resolution values.
+ */
+# define HIGH_RES_NSEC 1
+# define KTIME_HIGH_RES (HIGH_RES_NSEC)
+# define MONOTONIC_RES_NSEC HIGH_RES_NSEC
+# define KTIME_MONOTONIC_RES KTIME_HIGH_RES
+
+#else
+
+# define MONOTONIC_RES_NSEC LOW_RES_NSEC
+# define KTIME_MONOTONIC_RES KTIME_LOW_RES
+
+#endif
+
+#endif
diff --git a/include/linux/inetdevice.h b/include/linux/inetdevice.h
index 131f93f..a64f21a 100644
--- a/include/linux/inetdevice.h
+++ b/include/linux/inetdevice.h
@@ -41,7 +41,7 @@ struct in_device {
unsigned long mr_qri; /* Query Response Interval */
unsigned char mr_qrv; /* Query Robustness Variable */
unsigned char mr_gq_running;
- u32 mr_ifc_count;
+ unsigned char mr_ifc_count;
struct timer_list mr_gq_timer; /* general query timer */
struct timer_list mr_ifc_timer; /* interface change timer */
diff --git a/include/linux/init.h b/include/linux/init.h
index 2538d17..586dd18 100644
--- a/include/linux/init.h
+++ b/include/linux/init.h
@@ -47,7 +47,7 @@
/* These are for everybody (although not all archs will actually
discard it in modules) */
-#define __init __section(.init.text) __cold __latent_entropy __noinitretpoline
+#define __init __section(.init.text) __cold __latent_entropy __noinitretpoline __nocfi
#define __initdata __section(.init.data)
#define __initconst __section(.init.rodata)
#define __exitdata __section(.exit.data)
@@ -191,10 +191,32 @@ extern bool initcall_debug;
".long " #fn " - . \n" \
".previous \n");
#else
-#define ___define_initcall(fn, id, __sec) \
+#ifdef CONFIG_LTO_CLANG
+ /*
+ * With LTO, the compiler doesn't necessarily obey link order for
+ * initcalls, and the initcall variable needs to be globally unique
+ * to avoid naming collisions. In order to preserve the correct
+ * order, we add each variable into its own section and generate a
+ * linker script (in scripts/link-vmlinux.sh) to ensure the order
+ * remains correct. We also add a __COUNTER__ prefix to the name,
+ * so we can retain the order of initcalls within each compilation
+ * unit, and __LINE__ to make the names more unique.
+ */
+ #define ___lto_initcall(c, l, fn, id, __sec) \
+ static initcall_t __initcall_##c##_##l##_##fn##id __used \
+ __attribute__((__section__( #__sec \
+ __stringify(.init..##c##_##l##_##fn)))) = fn;
+ #define __lto_initcall(c, l, fn, id, __sec) \
+ ___lto_initcall(c, l, fn, id, __sec)
+
+ #define ___define_initcall(fn, id, __sec) \
+ __lto_initcall(__COUNTER__, __LINE__, fn, id, __sec)
+#else
+ #define ___define_initcall(fn, id, __sec) \
static initcall_t __initcall_##fn##id __used \
__attribute__((__section__(#__sec ".init"))) = fn;
#endif
+#endif
#define __define_initcall(fn, id) ___define_initcall(fn, id, .initcall##id)
@@ -235,8 +257,8 @@ extern bool initcall_debug;
#define __exitcall(fn) \
static exitcall_t __exitcall_##fn __exit_call = fn
-#define console_initcall(fn) ___define_initcall(fn,, .con_initcall)
-#define security_initcall(fn) ___define_initcall(fn,, .security_initcall)
+#define console_initcall(fn) ___define_initcall(fn, con, .con_initcall)
+#define security_initcall(fn) ___define_initcall(fn, security, .security_initcall)
struct obs_kernel_param {
const char *str;
diff --git a/include/linux/input.h b/include/linux/input.h
index 7c7516e..dcf02073 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -36,6 +36,13 @@ struct input_value {
__s32 value;
};
+enum input_clock_type {
+ INPUT_CLK_REAL = 0,
+ INPUT_CLK_MONO,
+ INPUT_CLK_BOOT,
+ INPUT_CLK_MAX
+};
+
/**
* struct input_dev - represents an input device
* @name: name of the device
@@ -117,6 +124,8 @@ struct input_value {
* @vals: array of values queued in the current frame
* @devres_managed: indicates that devices is managed with devres framework
* and needs not be explicitly unregistered or freed.
+ * @timestamp: storage for a timestamp set by input_set_timestamp called
+ * by a driver
*/
struct input_dev {
const char *name;
@@ -187,6 +196,8 @@ struct input_dev {
struct input_value *vals;
bool devres_managed;
+
+ ktime_t timestamp[INPUT_CLK_MAX];
};
#define to_input_dev(d) container_of(d, struct input_dev, dev)
@@ -385,6 +396,9 @@ void input_close_device(struct input_handle *);
int input_flush_device(struct input_handle *handle, struct file *file);
+void input_set_timestamp(struct input_dev *dev, ktime_t timestamp);
+ktime_t *input_get_timestamp(struct input_dev *dev);
+
void input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value);
void input_inject_event(struct input_handle *handle, unsigned int type, unsigned int code, int value);
diff --git a/include/linux/io-pgtable-fast.h b/include/linux/io-pgtable-fast.h
new file mode 100644
index 0000000..3eeef26
--- /dev/null
+++ b/include/linux/io-pgtable-fast.h
@@ -0,0 +1,104 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2017, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef __LINUX_IO_PGTABLE_FAST_H
+#define __LINUX_IO_PGTABLE_FAST_H
+
+#include <linux/notifier.h>
+
+/*
+ * This ought to be private to io-pgtable-fast, but dma-mapping-fast
+ * currently requires it for a debug usecase.
+ */
+typedef u64 av8l_fast_iopte;
+
+struct io_pgtable_ops;
+
+#ifdef CONFIG_IOMMU_IO_PGTABLE_FAST
+
+int av8l_fast_map_public(struct io_pgtable_ops *ops, unsigned long iova,
+ phys_addr_t paddr, size_t size, int prot);
+
+void av8l_fast_unmap_public(struct io_pgtable_ops *ops, unsigned long iova,
+ size_t size);
+
+int av8l_fast_map_sg_public(struct io_pgtable_ops *ops,
+ unsigned long iova, struct scatterlist *sgl,
+ unsigned int nents, int prot, size_t *size);
+
+bool av8l_fast_iova_coherent_public(struct io_pgtable_ops *ops,
+ unsigned long iova);
+
+phys_addr_t av8l_fast_iova_to_phys_public(struct io_pgtable_ops *ops,
+ unsigned long iova);
+#else
+static inline int
+av8l_fast_map_public(struct io_pgtable_ops *ops, unsigned long iova,
+ phys_addr_t paddr, size_t size, int prot)
+{
+ return -EINVAL;
+}
+static inline void av8l_fast_unmap_public(struct io_pgtable_ops *ops,
+ unsigned long iova, size_t size)
+{
+}
+
+static inline int av8l_fast_map_sg_public(struct io_pgtable_ops *ops,
+ unsigned long iova, struct scatterlist *sgl,
+ unsigned int nents, int prot, size_t *size)
+{
+ return 0;
+}
+
+static inline bool av8l_fast_iova_coherent_public(struct io_pgtable_ops *ops,
+ unsigned long iova)
+{
+ return false;
+}
+static inline phys_addr_t
+av8l_fast_iova_to_phys_public(struct io_pgtable_ops *ops,
+ unsigned long iova)
+{
+ return 0;
+}
+#endif /* CONFIG_IOMMU_IO_PGTABLE_FAST */
+
+
+/* events for notifiers passed to av8l_register_notify */
+#define MAPPED_OVER_STALE_TLB 1
+
+
+#ifdef CONFIG_IOMMU_IO_PGTABLE_FAST_PROVE_TLB
+/*
+ * Doesn't matter what we use as long as bit 0 is unset. The reason why we
+ * need a different value at all is that there are certain hardware
+ * platforms with erratum that require that a PTE actually be zero'd out
+ * and not just have its valid bit unset.
+ */
+#define AV8L_FAST_PTE_UNMAPPED_NEED_TLBI 0xa
+
+void av8l_fast_clear_stale_ptes(struct io_pgtable_ops *ops, u64 base,
+ u64 start, u64 end, bool skip_sync);
+void av8l_register_notify(struct notifier_block *nb);
+
+#else /* !CONFIG_IOMMU_IO_PGTABLE_FAST_PROVE_TLB */
+
+#define AV8L_FAST_PTE_UNMAPPED_NEED_TLBI 0
+
+static inline void av8l_fast_clear_stale_ptes(struct io_pgtable_ops *ops,
+ u64 base,
+ u64 start,
+ u64 end,
+ bool skip_sync)
+{
+}
+
+static inline void av8l_register_notify(struct notifier_block *nb)
+{
+}
+
+#endif /* CONFIG_IOMMU_IO_PGTABLE_FAST_PROVE_TLB */
+
+#endif /* __LINUX_IO_PGTABLE_FAST_H */
diff --git a/drivers/iommu/io-pgtable.h b/include/linux/io-pgtable.h
similarity index 67%
rename from drivers/iommu/io-pgtable.h
rename to include/linux/io-pgtable.h
index 2df7909..24fd587 100644
--- a/drivers/iommu/io-pgtable.h
+++ b/include/linux/io-pgtable.h
@@ -3,6 +3,8 @@
#define __IO_PGTABLE_H
#include <linux/bitops.h>
+#include <linux/scatterlist.h>
+
/*
* Public API for use by IOMMU drivers
*/
@@ -12,6 +14,7 @@ enum io_pgtable_fmt {
ARM_64_LPAE_S1,
ARM_64_LPAE_S2,
ARM_V7S,
+ ARM_V8L_FAST,
IO_PGTABLE_NUM_FMTS,
};
@@ -23,6 +26,10 @@ enum io_pgtable_fmt {
* @tlb_sync: Ensure any queued TLB invalidation has taken effect, and
* any corresponding page table updates are visible to the
* IOMMU.
+ * @alloc_pages_exact: Allocate page table memory (optional, defaults to
+ * alloc_pages_exact)
+ * @free_pages_exact: Free page table memory (optional, defaults to
+ * free_pages_exact)
*
* Note that these can all be called in atomic context and must therefore
* not block.
@@ -32,6 +39,8 @@ struct iommu_gather_ops {
void (*tlb_add_flush)(unsigned long iova, size_t size, size_t granule,
bool leaf, void *cookie);
void (*tlb_sync)(void *cookie);
+ void *(*alloc_pages_exact)(void *cookie, size_t size, gfp_t gfp_mask);
+ void (*free_pages_exact)(void *cookie, void *virt, size_t size);
};
/**
@@ -67,22 +76,44 @@ struct io_pgtable_cfg {
* when the SoC is in "4GB mode" and they can only access the high
* remap of DRAM (0x1_00000000 to 0x1_ffffffff).
*
+
* IO_PGTABLE_QUIRK_NO_DMA: Guarantees that the tables will only ever
* be accessed by a fully cache-coherent IOMMU or CPU (e.g. for a
* software-emulated IOMMU), such that pagetable updates need not
* be treated as explicit DMA data.
+ *
+
+ * IO_PGTABLE_QUIRK_QSMMUV500_NON_SHAREABLE:
+ * Having page tables which are non coherent, but cached in a
+ * system cache requires SH=Non-Shareable. This applies to the
+ * qsmmuv500 model. For data buffers SH=Non-Shareable is not
+ * required.
+
+ * IO_PGTABLE_QUIRK_QCOM_USE_UPSTREAM_HINT: Override the attributes
+ * set in TCR for the page table walker. Use attributes specified
+ * by the upstream hw instead.
+ *
+ * IO_PGTABLE_QUIRK_QCOM_USE_LLC_NWA: Override the attributes
+ * set in TCR for the page table walker with Write-Back,
+ * no Write-Allocate cacheable encoding.
+ *
*/
#define IO_PGTABLE_QUIRK_ARM_NS BIT(0)
#define IO_PGTABLE_QUIRK_NO_PERMS BIT(1)
#define IO_PGTABLE_QUIRK_TLBI_ON_MAP BIT(2)
#define IO_PGTABLE_QUIRK_ARM_MTK_4GB BIT(3)
#define IO_PGTABLE_QUIRK_NO_DMA BIT(4)
+ #define IO_PGTABLE_QUIRK_QSMMUV500_NON_SHAREABLE BIT(5)
+ #define IO_PGTABLE_QUIRK_QCOM_USE_UPSTREAM_HINT BIT(6)
+ #define IO_PGTABLE_QUIRK_QCOM_USE_LLC_NWA BIT(7)
unsigned long quirks;
unsigned long pgsize_bitmap;
unsigned int ias;
unsigned int oas;
const struct iommu_gather_ops *tlb;
struct device *iommu_dev;
+ dma_addr_t iova_base;
+ dma_addr_t iova_end;
/* Low-level data specific to the table format */
union {
@@ -103,15 +134,28 @@ struct io_pgtable_cfg {
u32 nmrr;
u32 prrr;
} arm_v7s_cfg;
+
+ struct {
+ u64 ttbr[2];
+ u64 tcr;
+ u64 mair[2];
+ void *pmds;
+ } av8l_fast_cfg;
};
};
/**
* struct io_pgtable_ops - Page table manipulation API for IOMMU drivers.
*
- * @map: Map a physically contiguous memory region.
- * @unmap: Unmap a physically contiguous memory region.
- * @iova_to_phys: Translate iova to physical address.
+ * @map: Map a physically contiguous memory region.
+ * @map_sg: Map a scatterlist. Returns the number of bytes mapped,
+ * or -ve val on failure. The size parameter contains the
+ * size of the partial mapping in case of failure.
+ * @unmap: Unmap a physically contiguous memory region.
+ * @iova_to_phys: Translate iova to physical address.
+ * @is_iova_coherent: Checks coherency of given IOVA. Returns True if coherent
+ * and False if non-coherent.
+ * @iova_to_pte: Translate iova to Page Table Entry (PTE).
*
* These functions map directly onto the iommu_ops member functions with
* the same names.
@@ -121,8 +165,16 @@ struct io_pgtable_ops {
phys_addr_t paddr, size_t size, int prot);
size_t (*unmap)(struct io_pgtable_ops *ops, unsigned long iova,
size_t size);
+ int (*map_sg)(struct io_pgtable_ops *ops, unsigned long iova,
+ struct scatterlist *sg, unsigned int nents,
+ int prot, size_t *size);
phys_addr_t (*iova_to_phys)(struct io_pgtable_ops *ops,
unsigned long iova);
+ bool (*is_iova_coherent)(struct io_pgtable_ops *ops,
+ unsigned long iova);
+ uint64_t (*iova_to_pte)(struct io_pgtable_ops *ops,
+ unsigned long iova);
+
};
/**
@@ -173,17 +225,23 @@ struct io_pgtable {
static inline void io_pgtable_tlb_flush_all(struct io_pgtable *iop)
{
+ if (!iop->cfg.tlb)
+ return;
iop->cfg.tlb->tlb_flush_all(iop->cookie);
}
static inline void io_pgtable_tlb_add_flush(struct io_pgtable *iop,
unsigned long iova, size_t size, size_t granule, bool leaf)
{
+ if (!iop->cfg.tlb)
+ return;
iop->cfg.tlb->tlb_add_flush(iova, size, granule, leaf, iop->cookie);
}
static inline void io_pgtable_tlb_sync(struct io_pgtable *iop)
{
+ if (!iop->cfg.tlb)
+ return;
iop->cfg.tlb->tlb_sync(iop->cookie);
}
@@ -204,5 +262,31 @@ extern struct io_pgtable_init_fns io_pgtable_arm_32_lpae_s2_init_fns;
extern struct io_pgtable_init_fns io_pgtable_arm_64_lpae_s1_init_fns;
extern struct io_pgtable_init_fns io_pgtable_arm_64_lpae_s2_init_fns;
extern struct io_pgtable_init_fns io_pgtable_arm_v7s_init_fns;
+extern struct io_pgtable_init_fns io_pgtable_av8l_fast_init_fns;
+extern struct io_pgtable_init_fns io_pgtable_arm_msm_secure_init_fns;
+
+/**
+ * io_pgtable_alloc_pages_exact:
+ * allocate an exact number of physically-contiguous pages.
+ * @size: the number of bytes to allocate
+ * @gfp_mask: GFP flags for the allocation
+ *
+ * Like alloc_pages_exact(), but with some additional accounting for debug
+ * purposes.
+ */
+void *io_pgtable_alloc_pages_exact(struct io_pgtable_cfg *cfg, void *cookie,
+ size_t size, gfp_t gfp_mask);
+
+/**
+ * io_pgtable_free_pages_exact:
+ * release memory allocated via io_pgtable_alloc_pages_exact()
+ * @virt: the value returned by alloc_pages_exact.
+ * @size: size of allocation, same value as passed to alloc_pages_exact().
+ *
+ * Like free_pages_exact(), but with some additional accounting for debug
+ * purposes.
+ */
+void io_pgtable_free_pages_exact(struct io_pgtable_cfg *cfg, void *cookie,
+ void *virt, size_t size);
#endif /* __IO_PGTABLE_H */
diff --git a/include/linux/iomap.h b/include/linux/iomap.h
index e93ecac..0a7feea 100644
--- a/include/linux/iomap.h
+++ b/include/linux/iomap.h
@@ -6,6 +6,7 @@
#include <linux/bitmap.h>
#include <linux/mm.h>
#include <linux/types.h>
+#include <linux/android_kabi.h>
struct address_space;
struct fiemap_extent_info;
@@ -99,6 +100,9 @@ struct iomap_ops {
*/
int (*iomap_end)(struct inode *inode, loff_t pos, loff_t length,
ssize_t written, unsigned flags, struct iomap *iomap);
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
};
/*
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 87994c2..581570b 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -41,6 +41,11 @@
* if the IOMMU page table format is equivalent.
*/
#define IOMMU_PRIV (1 << 5)
+/* Use upstream device's bus attribute */
+#define IOMMU_USE_UPSTREAM_HINT (1 << 6)
+
+/* Use upstream device's bus attribute with no write-allocate cache policy */
+#define IOMMU_USE_LLC_NWA (1 << 7)
struct iommu_ops;
struct iommu_group;
@@ -50,8 +55,12 @@ struct iommu_domain;
struct notifier_block;
/* iommu fault flags */
-#define IOMMU_FAULT_READ 0x0
-#define IOMMU_FAULT_WRITE 0x1
+#define IOMMU_FAULT_READ (1 << 0)
+#define IOMMU_FAULT_WRITE (1 << 1)
+#define IOMMU_FAULT_TRANSLATION (1 << 2)
+#define IOMMU_FAULT_PERMISSION (1 << 3)
+#define IOMMU_FAULT_EXTERNAL (1 << 4)
+#define IOMMU_FAULT_TRANSACTION_STALLED (1 << 5)
typedef int (*iommu_fault_handler_t)(struct iommu_domain *,
struct device *, unsigned long, int, void *);
@@ -62,6 +71,10 @@ struct iommu_domain_geometry {
bool force_aperture; /* DMA only allowed in mappable range? */
};
+struct iommu_pgtbl_info {
+ void *ops;
+};
+
/* Domain feature flags */
#define __IOMMU_DOMAIN_PAGING (1U << 0) /* Support for iommu_map/unmap */
#define __IOMMU_DOMAIN_DMA_API (1U << 1) /* Domain for use in DMA-API
@@ -86,6 +99,8 @@ struct iommu_domain_geometry {
#define IOMMU_DOMAIN_DMA (__IOMMU_DOMAIN_PAGING | \
__IOMMU_DOMAIN_DMA_API)
+
+#define IOMMU_DOMAIN_NAME_LEN 32
struct iommu_domain {
unsigned type;
const struct iommu_ops *ops;
@@ -94,6 +109,8 @@ struct iommu_domain {
void *handler_token;
struct iommu_domain_geometry geometry;
void *iova_cookie;
+ bool is_debug_domain;
+ char name[IOMMU_DOMAIN_NAME_LEN];
};
enum iommu_cap {
@@ -114,6 +131,11 @@ enum iommu_cap {
* DOMAIN_ATTR_FSL_PAMUV1 corresponds to the above mentioned contraints.
* The caller can invoke iommu_domain_get_attr to check if the underlying
* iommu implementation supports these constraints.
+ *
+ * DOMAIN_ATTR_NO_CFRE
+ * Some bus implementations may enter a bad state if iommu reports an error
+ * on context fault. As context faults are not always fatal, this must be
+ * avoided.
*/
enum iommu_attr {
@@ -124,6 +146,27 @@ enum iommu_attr {
DOMAIN_ATTR_FSL_PAMU_ENABLE,
DOMAIN_ATTR_FSL_PAMUV1,
DOMAIN_ATTR_NESTING, /* two stages of translation */
+ DOMAIN_ATTR_PT_BASE_ADDR,
+ DOMAIN_ATTR_CONTEXT_BANK,
+ DOMAIN_ATTR_DYNAMIC,
+ DOMAIN_ATTR_TTBR0,
+ DOMAIN_ATTR_CONTEXTIDR,
+ DOMAIN_ATTR_PROCID,
+ DOMAIN_ATTR_NON_FATAL_FAULTS,
+ DOMAIN_ATTR_S1_BYPASS,
+ DOMAIN_ATTR_ATOMIC,
+ DOMAIN_ATTR_SECURE_VMID,
+ DOMAIN_ATTR_FAST,
+ DOMAIN_ATTR_PGTBL_INFO,
+ DOMAIN_ATTR_USE_UPSTREAM_HINT,
+ DOMAIN_ATTR_EARLY_MAP,
+ DOMAIN_ATTR_PAGE_TABLE_IS_COHERENT,
+ DOMAIN_ATTR_PAGE_TABLE_FORCE_COHERENT,
+ DOMAIN_ATTR_BITMAP_IOVA_ALLOCATOR,
+ DOMAIN_ATTR_USE_LLC_NWA,
+ DOMAIN_ATTR_FAULT_MODEL_NO_CFRE,
+ DOMAIN_ATTR_FAULT_MODEL_NO_STALL,
+ DOMAIN_ATTR_FAULT_MODEL_HUPCF,
DOMAIN_ATTR_MAX,
};
@@ -155,6 +198,8 @@ struct iommu_resv_region {
enum iommu_resv_type type;
};
+extern struct dentry *iommu_debugfs_top;
+
#ifdef CONFIG_IOMMU_API
/**
@@ -166,11 +211,14 @@ struct iommu_resv_region {
* @detach_dev: detach device from an iommu domain
* @map: map a physically contiguous memory region to an iommu domain
* @unmap: unmap a physically contiguous memory region from an iommu domain
+ * @map_sg: map a scatter-gather list of physically contiguous memory chunks
+ * to an iommu domain
* @flush_tlb_all: Synchronously flush all hardware TLBs for this domain
* @tlb_range_add: Add a given iova range to the flush queue for this domain
* @tlb_sync: Flush all queued ranges from the hardware TLBs and empty flush
* queue
* @iova_to_phys: translate iova to physical address
+ * @iova_to_phys_hard: translate iova to physical address using IOMMU hardware
* @add_device: add device to iommu grouping
* @remove_device: remove device from iommu grouping
* @device_group: find iommu group for a particular device
@@ -185,6 +233,10 @@ struct iommu_resv_region {
* @domain_get_windows: Return the number of windows for a domain
* @of_xlate: add OF master IDs to iommu grouping
* @pgsize_bitmap: bitmap of all possible supported page sizes
+ * @trigger_fault: trigger a fault on the device attached to an iommu domain
+ * @tlbi_domain: Invalidate all TLBs covering an iommu domain
+ * @enable_config_clocks: Enable all config clocks for this domain's IOMMU
+ * @disable_config_clocks: Disable all config clocks for this domain's IOMMU
*/
struct iommu_ops {
bool (*capable)(enum iommu_cap);
@@ -199,11 +251,15 @@ struct iommu_ops {
phys_addr_t paddr, size_t size, int prot);
size_t (*unmap)(struct iommu_domain *domain, unsigned long iova,
size_t size);
+ size_t (*map_sg)(struct iommu_domain *domain, unsigned long iova,
+ struct scatterlist *sg, unsigned int nents, int prot);
void (*flush_iotlb_all)(struct iommu_domain *domain);
void (*iotlb_range_add)(struct iommu_domain *domain,
unsigned long iova, size_t size);
void (*iotlb_sync)(struct iommu_domain *domain);
phys_addr_t (*iova_to_phys)(struct iommu_domain *domain, dma_addr_t iova);
+ phys_addr_t (*iova_to_phys_hard)(struct iommu_domain *domain,
+ dma_addr_t iova);
int (*add_device)(struct device *dev);
void (*remove_device)(struct device *dev);
struct iommu_group *(*device_group)(struct device *dev);
@@ -227,10 +283,17 @@ struct iommu_ops {
int (*domain_set_windows)(struct iommu_domain *domain, u32 w_count);
/* Get the number of windows per domain */
u32 (*domain_get_windows)(struct iommu_domain *domain);
+ void (*trigger_fault)(struct iommu_domain *domain, unsigned long flags);
+ void (*tlbi_domain)(struct iommu_domain *domain);
+ int (*enable_config_clocks)(struct iommu_domain *domain);
+ void (*disable_config_clocks)(struct iommu_domain *domain);
+ uint64_t (*iova_to_pte)(struct iommu_domain *domain,
+ dma_addr_t iova);
int (*of_xlate)(struct device *dev, struct of_phandle_args *args);
bool (*is_attach_deferred)(struct iommu_domain *domain, struct device *dev);
+ bool (*is_iova_coherent)(struct iommu_domain *domain, dma_addr_t iova);
unsigned long pgsize_bitmap;
};
@@ -293,6 +356,8 @@ extern int iommu_attach_device(struct iommu_domain *domain,
extern void iommu_detach_device(struct iommu_domain *domain,
struct device *dev);
extern struct iommu_domain *iommu_get_domain_for_dev(struct device *dev);
+extern size_t iommu_pgsize(unsigned long pgsize_bitmap,
+ unsigned long addr_merge, size_t size);
extern int iommu_map(struct iommu_domain *domain, unsigned long iova,
phys_addr_t paddr, size_t size, int prot);
extern size_t iommu_unmap(struct iommu_domain *domain, unsigned long iova,
@@ -300,8 +365,17 @@ extern size_t iommu_unmap(struct iommu_domain *domain, unsigned long iova,
extern size_t iommu_unmap_fast(struct iommu_domain *domain,
unsigned long iova, size_t size);
extern size_t iommu_map_sg(struct iommu_domain *domain, unsigned long iova,
- struct scatterlist *sg,unsigned int nents, int prot);
+ struct scatterlist *sg, unsigned int nents,
+ int prot);
+extern size_t default_iommu_map_sg(struct iommu_domain *domain,
+ unsigned long iova,
+ struct scatterlist *sg, unsigned int nents,
+ int prot);
extern phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, dma_addr_t iova);
+extern phys_addr_t iommu_iova_to_phys_hard(struct iommu_domain *domain,
+ dma_addr_t iova);
+extern bool iommu_is_iova_coherent(struct iommu_domain *domain,
+ dma_addr_t iova);
extern void iommu_set_fault_handler(struct iommu_domain *domain,
iommu_fault_handler_t handler, void *token);
@@ -351,6 +425,9 @@ extern int iommu_domain_window_enable(struct iommu_domain *domain, u32 wnd_nr,
int prot);
extern void iommu_domain_window_disable(struct iommu_domain *domain, u32 wnd_nr);
+extern uint64_t iommu_iova_to_pte(struct iommu_domain *domain,
+ dma_addr_t iova);
+
extern int report_iommu_fault(struct iommu_domain *domain, struct device *dev,
unsigned long iova, int flags);
@@ -373,11 +450,38 @@ static inline void iommu_tlb_sync(struct iommu_domain *domain)
domain->ops->iotlb_sync(domain);
}
+extern void iommu_trigger_fault(struct iommu_domain *domain,
+ unsigned long flags);
+
+extern unsigned long iommu_reg_read(struct iommu_domain *domain,
+ unsigned long offset);
+extern void iommu_reg_write(struct iommu_domain *domain, unsigned long offset,
+ unsigned long val);
+
/* PCI device grouping function */
extern struct iommu_group *pci_device_group(struct device *dev);
/* Generic device grouping function */
extern struct iommu_group *generic_device_group(struct device *dev);
+static inline void iommu_tlbiall(struct iommu_domain *domain)
+{
+ if (domain->ops->tlbi_domain)
+ domain->ops->tlbi_domain(domain);
+}
+
+static inline int iommu_enable_config_clocks(struct iommu_domain *domain)
+{
+ if (domain->ops->enable_config_clocks)
+ return domain->ops->enable_config_clocks(domain);
+ return 0;
+}
+
+static inline void iommu_disable_config_clocks(struct iommu_domain *domain)
+{
+ if (domain->ops->disable_config_clocks)
+ domain->ops->disable_config_clocks(domain);
+}
+
/**
* struct iommu_fwspec - per-device IOMMU instance data
* @ops: ops for this device's IOMMU
@@ -399,6 +503,7 @@ int iommu_fwspec_init(struct device *dev, struct fwnode_handle *iommu_fwnode,
void iommu_fwspec_free(struct device *dev);
int iommu_fwspec_add_ids(struct device *dev, u32 *ids, int num_ids);
const struct iommu_ops *iommu_ops_from_fwnode(struct fwnode_handle *fwnode);
+int iommu_is_available(struct device *dev);
#else /* CONFIG_IOMMU_API */
@@ -502,6 +607,18 @@ static inline phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, dma_ad
return 0;
}
+static inline phys_addr_t iommu_iova_to_phys_hard(struct iommu_domain *domain,
+ dma_addr_t iova)
+{
+ return 0;
+}
+
+static inline bool iommu_is_iova_coherent(struct iommu_domain *domain,
+ dma_addr_t iova)
+{
+ return 0;
+}
+
static inline void iommu_set_fault_handler(struct iommu_domain *domain,
iommu_fault_handler_t handler, void *token)
{
@@ -661,6 +778,35 @@ static inline void iommu_device_unlink(struct device *dev, struct device *link)
{
}
+static inline void iommu_trigger_fault(struct iommu_domain *domain,
+ unsigned long flags)
+{
+}
+
+static inline unsigned long iommu_reg_read(struct iommu_domain *domain,
+ unsigned long offset)
+{
+ return 0;
+}
+
+static inline void iommu_reg_write(struct iommu_domain *domain,
+ unsigned long val, unsigned long offset)
+{
+}
+
+static inline void iommu_tlbiall(struct iommu_domain *domain)
+{
+}
+
+static inline int iommu_enable_config_clocks(struct iommu_domain *domain)
+{
+ return 0;
+}
+
+static inline void iommu_disable_config_clocks(struct iommu_domain *domain)
+{
+}
+
static inline int iommu_fwspec_init(struct device *dev,
struct fwnode_handle *iommu_fwnode,
const struct iommu_ops *ops)
@@ -684,6 +830,10 @@ const struct iommu_ops *iommu_ops_from_fwnode(struct fwnode_handle *fwnode)
return NULL;
}
+static inline int iommu_is_available(struct device *dev)
+{
+ return -ENODEV;
+}
#endif /* CONFIG_IOMMU_API */
#ifdef CONFIG_IOMMU_DEBUGFS
diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index da0ebae..a86dc4d 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -12,6 +12,7 @@
#ifndef __ASSEMBLY__
#include <linux/compiler.h>
#include <linux/types.h>
+#include <linux/android_kabi.h>
/*
* Resources are tree-like, allowing
* nesting etc..
@@ -23,6 +24,11 @@ struct resource {
unsigned long flags;
unsigned long desc;
struct resource *parent, *sibling, *child;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
/*
diff --git a/include/linux/iova.h b/include/linux/iova.h
index 84fbe73..8c48bfa 100644
--- a/include/linux/iova.h
+++ b/include/linux/iova.h
@@ -74,6 +74,7 @@ struct iova_domain {
struct rb_node *cached32_node; /* Save last 32-bit alloced node */
unsigned long granule; /* pfn granularity for this domain */
unsigned long start_pfn; /* Lower limit for this domain */
+ unsigned long end_pfn; /* Upper limit for this domain */
unsigned long dma_32bit_pfn;
struct iova anchor; /* rbtree lookup anchor */
struct iova_rcache rcaches[IOVA_RANGE_CACHE_MAX_SIZE]; /* IOVA range caches */
@@ -96,6 +97,7 @@ struct iova_domain {
flush-queues */
atomic_t fq_timer_on; /* 1 when timer is active, 0
when not */
+ bool best_fit;
};
static inline unsigned long iova_size(struct iova *iova)
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index 0ebd180..19dcdb3 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -4,6 +4,7 @@
#include <uapi/linux/ipv6.h>
#include <uapi/linux/icmpv6.h>
+#include <linux/android_kabi.h>
#define ipv6_optlen(p) (((p)->hdrlen+1) << 3)
#define ipv6_authlen(p) (((p)->hdrlen+2) << 2)
@@ -43,6 +44,7 @@ struct ipv6_devconf {
__s32 accept_ra_rt_info_max_plen;
#endif
#endif
+ __s32 accept_ra_rt_table;
__s32 proxy_ndp;
__s32 accept_source_route;
__s32 accept_ra_from_local;
@@ -77,6 +79,11 @@ struct ipv6_devconf {
__s32 ndisc_tclass;
struct ctl_table_header *sysctl_header;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
struct ipv6_params {
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 9504267..6d54677 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -632,6 +632,12 @@ extern int irq_chip_pm_put(struct irq_data *data);
#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
extern void handle_fasteoi_ack_irq(struct irq_desc *desc);
extern void handle_fasteoi_mask_irq(struct irq_desc *desc);
+extern int irq_chip_set_parent_state(struct irq_data *data,
+ enum irqchip_irq_state which,
+ bool val);
+extern int irq_chip_get_parent_state(struct irq_data *data,
+ enum irqchip_irq_state which,
+ bool *state);
extern void irq_chip_enable_parent(struct irq_data *data);
extern void irq_chip_disable_parent(struct irq_data *data);
extern void irq_chip_ack_parent(struct irq_data *data);
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index 0924455..cf27ed8 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -35,6 +35,7 @@
#include <linux/of.h>
#include <linux/mutex.h>
#include <linux/radix-tree.h>
+#include <linux/android_kabi.h>
struct device_node;
struct irq_domain;
@@ -80,6 +81,7 @@ enum irq_domain_bus_token {
DOMAIN_BUS_NEXUS,
DOMAIN_BUS_IPI,
DOMAIN_BUS_FSL_MC_MSI,
+ DOMAIN_BUS_WAKEUP,
};
/**
@@ -173,6 +175,11 @@ struct irq_domain {
struct dentry *debugfs_file;
#endif
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
+
/* reverse map data. The linear map gets appended to the irq_domain */
irq_hw_number_t hwirq_max;
unsigned int revmap_direct_max_irq;
diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h
index fa92824..6f0d546 100644
--- a/include/linux/jiffies.h
+++ b/include/linux/jiffies.h
@@ -8,6 +8,7 @@
#include <linux/types.h>
#include <linux/time.h>
#include <linux/timex.h>
+#include <vdso/jiffies.h>
#include <asm/param.h> /* for HZ */
#include <generated/timeconst.h>
@@ -59,9 +60,6 @@
extern int register_refined_jiffies(long clock_tick_rate);
-/* TICK_NSEC is the time between ticks in nsec assuming SHIFTED_HZ */
-#define TICK_NSEC ((NSEC_PER_SEC+HZ/2)/HZ)
-
/* TICK_USEC is the time between ticks in usec assuming SHIFTED_HZ */
#define TICK_USEC ((USEC_PER_SEC + HZ/2) / HZ)
diff --git a/include/linux/kasan-checks.h b/include/linux/kasan-checks.h
index d314150..a61dc07 100644
--- a/include/linux/kasan-checks.h
+++ b/include/linux/kasan-checks.h
@@ -2,7 +2,7 @@
#ifndef _LINUX_KASAN_CHECKS_H
#define _LINUX_KASAN_CHECKS_H
-#ifdef CONFIG_KASAN
+#if defined(__SANITIZE_ADDRESS__) || defined(__KASAN_INTERNAL)
void kasan_check_read(const volatile void *p, unsigned int size);
void kasan_check_write(const volatile void *p, unsigned int size);
#else
diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index 46aae12..b40ea10 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -14,13 +14,13 @@ struct task_struct;
#include <asm/kasan.h>
#include <asm/pgtable.h>
-extern unsigned char kasan_zero_page[PAGE_SIZE];
-extern pte_t kasan_zero_pte[PTRS_PER_PTE];
-extern pmd_t kasan_zero_pmd[PTRS_PER_PMD];
-extern pud_t kasan_zero_pud[PTRS_PER_PUD];
-extern p4d_t kasan_zero_p4d[MAX_PTRS_PER_P4D];
+extern unsigned char kasan_early_shadow_page[PAGE_SIZE];
+extern pte_t kasan_early_shadow_pte[PTRS_PER_PTE];
+extern pmd_t kasan_early_shadow_pmd[PTRS_PER_PMD];
+extern pud_t kasan_early_shadow_pud[PTRS_PER_PUD];
+extern p4d_t kasan_early_shadow_p4d[MAX_PTRS_PER_P4D];
-int kasan_populate_zero_shadow(const void *shadow_start,
+int kasan_populate_early_shadow(const void *shadow_start,
const void *shadow_end);
static inline void *kasan_mem_to_shadow(const void *addr)
@@ -45,22 +45,24 @@ void kasan_free_pages(struct page *page, unsigned int order);
void kasan_cache_create(struct kmem_cache *cache, unsigned int *size,
slab_flags_t *flags);
-void kasan_cache_shrink(struct kmem_cache *cache);
-void kasan_cache_shutdown(struct kmem_cache *cache);
void kasan_poison_slab(struct page *page);
void kasan_unpoison_object_data(struct kmem_cache *cache, void *object);
void kasan_poison_object_data(struct kmem_cache *cache, void *object);
-void kasan_init_slab_obj(struct kmem_cache *cache, const void *object);
+void * __must_check kasan_init_slab_obj(struct kmem_cache *cache,
+ const void *object);
-void kasan_kmalloc_large(const void *ptr, size_t size, gfp_t flags);
+void * __must_check kasan_kmalloc_large(const void *ptr, size_t size,
+ gfp_t flags);
void kasan_kfree_large(void *ptr, unsigned long ip);
void kasan_poison_kfree(void *ptr, unsigned long ip);
-void kasan_kmalloc(struct kmem_cache *s, const void *object, size_t size,
- gfp_t flags);
-void kasan_krealloc(const void *object, size_t new_size, gfp_t flags);
+void * __must_check kasan_kmalloc(struct kmem_cache *s, const void *object,
+ size_t size, gfp_t flags);
+void * __must_check kasan_krealloc(const void *object, size_t new_size,
+ gfp_t flags);
-void kasan_slab_alloc(struct kmem_cache *s, void *object, gfp_t flags);
+void * __must_check kasan_slab_alloc(struct kmem_cache *s, void *object,
+ gfp_t flags);
bool kasan_slab_free(struct kmem_cache *s, void *object, unsigned long ip);
struct kasan_cache {
@@ -97,27 +99,40 @@ static inline void kasan_free_pages(struct page *page, unsigned int order) {}
static inline void kasan_cache_create(struct kmem_cache *cache,
unsigned int *size,
slab_flags_t *flags) {}
-static inline void kasan_cache_shrink(struct kmem_cache *cache) {}
-static inline void kasan_cache_shutdown(struct kmem_cache *cache) {}
static inline void kasan_poison_slab(struct page *page) {}
static inline void kasan_unpoison_object_data(struct kmem_cache *cache,
void *object) {}
static inline void kasan_poison_object_data(struct kmem_cache *cache,
void *object) {}
-static inline void kasan_init_slab_obj(struct kmem_cache *cache,
- const void *object) {}
+static inline void *kasan_init_slab_obj(struct kmem_cache *cache,
+ const void *object)
+{
+ return (void *)object;
+}
-static inline void kasan_kmalloc_large(void *ptr, size_t size, gfp_t flags) {}
+static inline void *kasan_kmalloc_large(void *ptr, size_t size, gfp_t flags)
+{
+ return ptr;
+}
static inline void kasan_kfree_large(void *ptr, unsigned long ip) {}
static inline void kasan_poison_kfree(void *ptr, unsigned long ip) {}
-static inline void kasan_kmalloc(struct kmem_cache *s, const void *object,
- size_t size, gfp_t flags) {}
-static inline void kasan_krealloc(const void *object, size_t new_size,
- gfp_t flags) {}
+static inline void *kasan_kmalloc(struct kmem_cache *s, const void *object,
+ size_t size, gfp_t flags)
+{
+ return (void *)object;
+}
+static inline void *kasan_krealloc(const void *object, size_t new_size,
+ gfp_t flags)
+{
+ return (void *)object;
+}
-static inline void kasan_slab_alloc(struct kmem_cache *s, void *object,
- gfp_t flags) {}
+static inline void *kasan_slab_alloc(struct kmem_cache *s, void *object,
+ gfp_t flags)
+{
+ return object;
+}
static inline bool kasan_slab_free(struct kmem_cache *s, void *object,
unsigned long ip)
{
@@ -140,4 +155,40 @@ static inline size_t kasan_metadata_size(struct kmem_cache *cache) { return 0; }
#endif /* CONFIG_KASAN */
+#ifdef CONFIG_KASAN_GENERIC
+
+#define KASAN_SHADOW_INIT 0
+
+void kasan_cache_shrink(struct kmem_cache *cache);
+void kasan_cache_shutdown(struct kmem_cache *cache);
+
+#else /* CONFIG_KASAN_GENERIC */
+
+static inline void kasan_cache_shrink(struct kmem_cache *cache) {}
+static inline void kasan_cache_shutdown(struct kmem_cache *cache) {}
+
+#endif /* CONFIG_KASAN_GENERIC */
+
+#ifdef CONFIG_KASAN_SW_TAGS
+
+#define KASAN_SHADOW_INIT 0xFF
+
+void kasan_init_tags(void);
+
+void *kasan_reset_tag(const void *addr);
+
+void kasan_report(unsigned long addr, size_t size,
+ bool is_write, unsigned long ip);
+
+#else /* CONFIG_KASAN_SW_TAGS */
+
+static inline void kasan_init_tags(void) { }
+
+static inline void *kasan_reset_tag(const void *addr)
+{
+ return (void *)addr;
+}
+
+#endif /* CONFIG_KASAN_SW_TAGS */
+
#endif /* LINUX_KASAN_H */
diff --git a/include/linux/kcov.h b/include/linux/kcov.h
index b76a180..a10e847 100644
--- a/include/linux/kcov.h
+++ b/include/linux/kcov.h
@@ -37,12 +37,35 @@ do { \
(t)->kcov_mode &= ~KCOV_IN_CTXSW; \
} while (0)
+/* See Documentation/dev-tools/kcov.rst for usage details. */
+void kcov_remote_start(u64 handle);
+void kcov_remote_stop(void);
+u64 kcov_common_handle(void);
+
+static inline void kcov_remote_start_common(u64 id)
+{
+ kcov_remote_start(kcov_remote_handle(KCOV_SUBSYSTEM_COMMON, id));
+}
+
+static inline void kcov_remote_start_usb(u64 id)
+{
+ kcov_remote_start(kcov_remote_handle(KCOV_SUBSYSTEM_USB, id));
+}
+
#else
static inline void kcov_task_init(struct task_struct *t) {}
static inline void kcov_task_exit(struct task_struct *t) {}
static inline void kcov_prepare_switch(struct task_struct *t) {}
static inline void kcov_finish_switch(struct task_struct *t) {}
+static inline void kcov_remote_start(u64 handle) {}
+static inline void kcov_remote_stop(void) {}
+static inline u64 kcov_common_handle(void)
+{
+ return 0;
+}
+static inline void kcov_remote_start_common(u64 id) {}
+static inline void kcov_remote_start_usb(u64 id) {}
#endif /* CONFIG_KCOV */
#endif /* _LINUX_KCOV_H */
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index f6f94e5..7a4e8e20 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -2,7 +2,6 @@
#ifndef _LINUX_KERNEL_H
#define _LINUX_KERNEL_H
-
#include <stdarg.h>
#include <linux/linkage.h>
#include <linux/stddef.h>
@@ -15,34 +14,7 @@
#include <linux/build_bug.h>
#include <asm/byteorder.h>
#include <uapi/linux/kernel.h>
-
-#define USHRT_MAX ((u16)(~0U))
-#define SHRT_MAX ((s16)(USHRT_MAX>>1))
-#define SHRT_MIN ((s16)(-SHRT_MAX - 1))
-#define INT_MAX ((int)(~0U>>1))
-#define INT_MIN (-INT_MAX - 1)
-#define UINT_MAX (~0U)
-#define LONG_MAX ((long)(~0UL>>1))
-#define LONG_MIN (-LONG_MAX - 1)
-#define ULONG_MAX (~0UL)
-#define LLONG_MAX ((long long)(~0ULL>>1))
-#define LLONG_MIN (-LLONG_MAX - 1)
-#define ULLONG_MAX (~0ULL)
-#define SIZE_MAX (~(size_t)0)
-#define PHYS_ADDR_MAX (~(phys_addr_t)0)
-
-#define U8_MAX ((u8)~0U)
-#define S8_MAX ((s8)(U8_MAX>>1))
-#define S8_MIN ((s8)(-S8_MAX - 1))
-#define U16_MAX ((u16)~0U)
-#define S16_MAX ((s16)(U16_MAX>>1))
-#define S16_MIN ((s16)(-S16_MAX - 1))
-#define U32_MAX ((u32)~0U)
-#define S32_MAX ((s32)(U32_MAX>>1))
-#define S32_MIN ((s32)(-S32_MAX - 1))
-#define U64_MAX ((u64)~0ULL)
-#define S64_MAX ((s64)(U64_MAX>>1))
-#define S64_MIN ((s64)(-S64_MAX - 1))
+#include <linux/limits.h>
#define STACK_MAGIC 0xdeadbeef
@@ -323,6 +295,7 @@ static inline void might_fault(void) { }
#endif
extern struct atomic_notifier_head panic_notifier_list;
+extern void (*vendor_panic_cb)(u64 sp);
extern long (*panic_blink)(int state);
__printf(1, 2)
void panic(const char *fmt, ...) __noreturn __cold;
diff --git a/include/linux/kernfs.h b/include/linux/kernfs.h
index 84e9358..935e4b1 100644
--- a/include/linux/kernfs.h
+++ b/include/linux/kernfs.h
@@ -17,6 +17,7 @@
#include <linux/atomic.h>
#include <linux/uidgid.h>
#include <linux/wait.h>
+#include <linux/android_kabi.h>
struct file;
struct dentry;
@@ -25,6 +26,7 @@ struct seq_file;
struct vm_area_struct;
struct super_block;
struct file_system_type;
+struct poll_table_struct;
struct kernfs_open_node;
struct kernfs_iattrs;
@@ -177,6 +179,11 @@ struct kernfs_syscall_ops {
const char *new_name);
int (*show_path)(struct seq_file *sf, struct kernfs_node *kn,
struct kernfs_root *root);
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
struct kernfs_root {
@@ -262,11 +269,17 @@ struct kernfs_ops {
ssize_t (*write)(struct kernfs_open_file *of, char *buf, size_t bytes,
loff_t off);
+ __poll_t (*poll)(struct kernfs_open_file *of,
+ struct poll_table_struct *pt);
+
int (*mmap)(struct kernfs_open_file *of, struct vm_area_struct *vma);
#ifdef CONFIG_DEBUG_LOCK_ALLOC
struct lock_class_key lockdep_key;
#endif
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
};
#ifdef CONFIG_KERNFS
@@ -351,6 +364,8 @@ int kernfs_remove_by_name_ns(struct kernfs_node *parent, const char *name,
int kernfs_rename_ns(struct kernfs_node *kn, struct kernfs_node *new_parent,
const char *new_name, const void *new_ns);
int kernfs_setattr(struct kernfs_node *kn, const struct iattr *iattr);
+__poll_t kernfs_generic_poll(struct kernfs_open_file *of,
+ struct poll_table_struct *pt);
void kernfs_notify(struct kernfs_node *kn);
const void *kernfs_super_ns(struct super_block *sb);
diff --git a/include/linux/key.h b/include/linux/key.h
index 3683c6a..f501f2f 100644
--- a/include/linux/key.h
+++ b/include/linux/key.h
@@ -347,6 +347,9 @@ static inline key_serial_t key_serial(const struct key *key)
extern void key_set_timeout(struct key *, unsigned);
+extern key_ref_t lookup_user_key(key_serial_t id, unsigned long flags,
+ key_perm_t perm);
+
/*
* The permissions required on a key that we're looking up.
*/
diff --git a/include/linux/keyslot-manager.h b/include/linux/keyslot-manager.h
new file mode 100644
index 0000000..f5e0eed
--- /dev/null
+++ b/include/linux/keyslot-manager.h
@@ -0,0 +1,103 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2019 Google LLC
+ */
+
+#ifndef __LINUX_KEYSLOT_MANAGER_H
+#define __LINUX_KEYSLOT_MANAGER_H
+
+#include <linux/bio.h>
+
+/* Inline crypto feature bits. Must set at least one. */
+enum {
+ /* Support for standard software-specified keys */
+ BLK_CRYPTO_FEATURE_STANDARD_KEYS = BIT(0),
+
+ /* Support for hardware-wrapped keys */
+ BLK_CRYPTO_FEATURE_WRAPPED_KEYS = BIT(1),
+};
+
+#ifdef CONFIG_BLK_INLINE_ENCRYPTION
+
+struct keyslot_manager;
+
+/**
+ * struct keyslot_mgmt_ll_ops - functions to manage keyslots in hardware
+ * @keyslot_program: Program the specified key into the specified slot in the
+ * inline encryption hardware.
+ * @keyslot_evict: Evict key from the specified keyslot in the hardware.
+ * The key is provided so that e.g. dm layers can evict
+ * keys from the devices that they map over.
+ * Returns 0 on success, -errno otherwise.
+ * @derive_raw_secret: (Optional) Derive a software secret from a
+ * hardware-wrapped key. Returns 0 on success, -EOPNOTSUPP
+ * if unsupported on the hardware, or another -errno code.
+ *
+ * This structure should be provided by storage device drivers when they set up
+ * a keyslot manager - this structure holds the function ptrs that the keyslot
+ * manager will use to manipulate keyslots in the hardware.
+ */
+struct keyslot_mgmt_ll_ops {
+ int (*keyslot_program)(struct keyslot_manager *ksm,
+ const struct blk_crypto_key *key,
+ unsigned int slot);
+ int (*keyslot_evict)(struct keyslot_manager *ksm,
+ const struct blk_crypto_key *key,
+ unsigned int slot);
+ int (*derive_raw_secret)(struct keyslot_manager *ksm,
+ const u8 *wrapped_key,
+ unsigned int wrapped_key_size,
+ u8 *secret, unsigned int secret_size);
+};
+
+struct keyslot_manager *keyslot_manager_create(
+ struct device *dev,
+ unsigned int num_slots,
+ const struct keyslot_mgmt_ll_ops *ksm_ops,
+ unsigned int features,
+ const unsigned int crypto_mode_supported[BLK_ENCRYPTION_MODE_MAX],
+ void *ll_priv_data);
+
+void keyslot_manager_set_max_dun_bytes(struct keyslot_manager *ksm,
+ unsigned int max_dun_bytes);
+
+int keyslot_manager_get_slot_for_key(struct keyslot_manager *ksm,
+ const struct blk_crypto_key *key);
+
+void keyslot_manager_get_slot(struct keyslot_manager *ksm, unsigned int slot);
+
+void keyslot_manager_put_slot(struct keyslot_manager *ksm, unsigned int slot);
+
+bool keyslot_manager_crypto_mode_supported(struct keyslot_manager *ksm,
+ enum blk_crypto_mode_num crypto_mode,
+ unsigned int dun_bytes,
+ unsigned int data_unit_size,
+ bool is_hw_wrapped_key);
+
+int keyslot_manager_evict_key(struct keyslot_manager *ksm,
+ const struct blk_crypto_key *key);
+
+void keyslot_manager_reprogram_all_keys(struct keyslot_manager *ksm);
+
+void *keyslot_manager_private(struct keyslot_manager *ksm);
+
+void keyslot_manager_destroy(struct keyslot_manager *ksm);
+
+struct keyslot_manager *keyslot_manager_create_passthrough(
+ struct device *dev,
+ const struct keyslot_mgmt_ll_ops *ksm_ops,
+ unsigned int features,
+ const unsigned int crypto_mode_supported[BLK_ENCRYPTION_MODE_MAX],
+ void *ll_priv_data);
+
+void keyslot_manager_intersect_modes(struct keyslot_manager *parent,
+ const struct keyslot_manager *child);
+
+int keyslot_manager_derive_raw_secret(struct keyslot_manager *ksm,
+ const u8 *wrapped_key,
+ unsigned int wrapped_key_size,
+ u8 *secret, unsigned int secret_size);
+
+#endif /* CONFIG_BLK_INLINE_ENCRYPTION */
+
+#endif /* __LINUX_KEYSLOT_MANAGER_H */
diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index 1ab0d62..d0034c3 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -27,10 +27,11 @@
#include <linux/atomic.h>
#include <linux/workqueue.h>
#include <linux/uidgid.h>
+#include <linux/android_kabi.h>
#define UEVENT_HELPER_PATH_LEN 256
-#define UEVENT_NUM_ENVP 32 /* number of env pointers */
-#define UEVENT_BUFFER_SIZE 2048 /* buffer for the variables */
+#define UEVENT_NUM_ENVP 64 /* number of env pointers */
+#define UEVENT_BUFFER_SIZE 4096 /* buffer for the variables */
#ifdef CONFIG_UEVENT_HELPER
/* path to the userspace helper executed on an event */
@@ -78,6 +79,11 @@ struct kobject {
unsigned int state_add_uevent_sent:1;
unsigned int state_remove_uevent_sent:1;
unsigned int uevent_suppress:1;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
extern __printf(2, 3)
@@ -143,6 +149,11 @@ struct kobj_type {
const struct kobj_ns_type_operations *(*child_ns_type)(struct kobject *kobj);
const void *(*namespace)(struct kobject *kobj);
void (*get_ownership)(struct kobject *kobj, kuid_t *uid, kgid_t *gid);
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
struct kobj_uevent_env {
@@ -194,6 +205,11 @@ struct kset {
spinlock_t list_lock;
struct kobject kobj;
const struct kset_uevent_ops *uevent_ops;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
} __randomize_layout;
extern void kset_init(struct kset *kset);
diff --git a/include/linux/kthread.h b/include/linux/kthread.h
index 72308c3..3359bbd 100644
--- a/include/linux/kthread.h
+++ b/include/linux/kthread.h
@@ -4,7 +4,6 @@
/* Simple interface for creating and stopping kernel threads without mess. */
#include <linux/err.h>
#include <linux/sched.h>
-#include <linux/cgroup.h>
__printf(4, 5)
struct task_struct *kthread_create_on_node(int (*threadfn)(void *data),
@@ -201,6 +200,8 @@ bool kthread_cancel_delayed_work_sync(struct kthread_delayed_work *work);
void kthread_destroy_worker(struct kthread_worker *worker);
+struct cgroup_subsys_state;
+
#ifdef CONFIG_BLK_CGROUP
void kthread_associate_blkcg(struct cgroup_subsys_state *css);
struct cgroup_subsys_state *kthread_blkcg(void);
diff --git a/include/linux/ktime.h b/include/linux/ktime.h
index b2bb44f..1fcfce9 100644
--- a/include/linux/ktime.h
+++ b/include/linux/ktime.h
@@ -253,14 +253,7 @@ static inline __must_check bool ktime_to_timespec64_cond(const ktime_t kt,
}
}
-/*
- * The resolution of the clocks. The resolution value is returned in
- * the clock_getres() system call to give application programmers an
- * idea of the (in)accuracy of timers. Timer values are rounded up to
- * this resolution values.
- */
-#define LOW_RES_NSEC TICK_NSEC
-#define KTIME_LOW_RES (LOW_RES_NSEC)
+#include <vdso/ktime.h>
static inline ktime_t ns_to_ktime(u64 ns)
{
diff --git a/include/linux/libnvdimm.h b/include/linux/libnvdimm.h
index 097072c..b0d16e3 100644
--- a/include/linux/libnvdimm.h
+++ b/include/linux/libnvdimm.h
@@ -19,6 +19,7 @@
#include <linux/types.h>
#include <linux/uuid.h>
#include <linux/spinlock.h>
+#include <linux/bio.h>
struct badrange_entry {
u64 start;
@@ -59,6 +60,9 @@ enum {
*/
ND_REGION_PERSIST_MEMCTRL = 2,
+ /* Platform provides asynchronous flush mechanism */
+ ND_REGION_ASYNC = 3,
+
/* mark newly adjusted resources as requiring a label update */
DPA_RESOURCE_ADJUSTED = 1 << 0,
};
@@ -115,6 +119,7 @@ struct nd_mapping_desc {
int position;
};
+struct nd_region;
struct nd_region_desc {
struct resource *res;
struct nd_mapping_desc *mapping;
@@ -126,6 +131,7 @@ struct nd_region_desc {
int numa_node;
unsigned long flags;
struct device_node *of_node;
+ int (*flush)(struct nd_region *nd_region, struct bio *bio);
};
struct device;
@@ -201,7 +207,8 @@ unsigned long nd_blk_memremap_flags(struct nd_blk_region *ndbr);
unsigned int nd_region_acquire_lane(struct nd_region *nd_region);
void nd_region_release_lane(struct nd_region *nd_region, unsigned int lane);
u64 nd_fletcher64(void *addr, size_t len, bool le);
-void nvdimm_flush(struct nd_region *nd_region);
+int nvdimm_flush(struct nd_region *nd_region, struct bio *bio);
+int generic_nvdimm_flush(struct nd_region *nd_region);
int nvdimm_has_flush(struct nd_region *nd_region);
int nvdimm_has_cache(struct nd_region *nd_region);
diff --git a/include/linux/limits.h b/include/linux/limits.h
new file mode 100644
index 0000000..7fc497e
--- /dev/null
+++ b/include/linux/limits.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_LIMITS_H
+#define _LINUX_LIMITS_H
+
+#include <uapi/linux/limits.h>
+#include <linux/types.h>
+#include <vdso/limits.h>
+
+#define SIZE_MAX (~(size_t)0)
+#define PHYS_ADDR_MAX (~(phys_addr_t)0)
+
+#define U8_MAX ((u8)~0U)
+#define S8_MAX ((s8)(U8_MAX >> 1))
+#define S8_MIN ((s8)(-S8_MAX - 1))
+#define U16_MAX ((u16)~0U)
+#define S16_MAX ((s16)(U16_MAX >> 1))
+#define S16_MIN ((s16)(-S16_MAX - 1))
+#define U32_MAX ((u32)~0U)
+#define S32_MAX ((s32)(U32_MAX >> 1))
+#define S32_MIN ((s32)(-S32_MAX - 1))
+#define U64_MAX ((u64)~0ULL)
+#define S64_MAX ((s64)(U64_MAX >> 1))
+#define S64_MIN ((s64)(-S64_MAX - 1))
+
+#endif /* _LINUX_LIMITS_H */
diff --git a/include/linux/log2.h b/include/linux/log2.h
index 7849680..60d424c 100644
--- a/include/linux/log2.h
+++ b/include/linux/log2.h
@@ -224,4 +224,38 @@ int __order_base_2(unsigned long n)
ilog2((n) - 1) + 1) : \
__order_base_2(n) \
)
+
+static inline __attribute__((const))
+int __bits_per(unsigned long n)
+{
+ if (n < 2)
+ return 1;
+ if (is_power_of_2(n))
+ return order_base_2(n) + 1;
+ return order_base_2(n);
+}
+
+/**
+ * bits_per - calculate the number of bits required for the argument
+ * @n: parameter
+ *
+ * This is constant-capable and can be used for compile time
+ * initializations, e.g bitfields.
+ *
+ * The first few values calculated by this routine:
+ * bf(0) = 1
+ * bf(1) = 1
+ * bf(2) = 2
+ * bf(3) = 2
+ * bf(4) = 3
+ * ... and so on.
+ */
+#define bits_per(n) \
+( \
+ __builtin_constant_p(n) ? ( \
+ ((n) == 0 || (n) == 1) \
+ ? 1 : ilog2(n) + 1 \
+ ) : \
+ __bits_per(n) \
+)
#endif /* _LINUX_LOG2_H */
diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h
index 3833c87..1a922bd 100644
--- a/include/linux/lsm_hooks.h
+++ b/include/linux/lsm_hooks.h
@@ -1779,6 +1779,14 @@ union security_list_options {
int (*bpf_prog_alloc_security)(struct bpf_prog_aux *aux);
void (*bpf_prog_free_security)(struct bpf_prog_aux *aux);
#endif /* CONFIG_BPF_SYSCALL */
+#ifdef CONFIG_PERF_EVENTS
+ int (*perf_event_open)(struct perf_event_attr *attr, int type);
+ int (*perf_event_alloc)(struct perf_event *event);
+ void (*perf_event_free)(struct perf_event *event);
+ int (*perf_event_read)(struct perf_event *event);
+ int (*perf_event_write)(struct perf_event *event);
+
+#endif
};
struct security_hook_heads {
@@ -2013,6 +2021,13 @@ struct security_hook_heads {
struct hlist_head bpf_prog_alloc_security;
struct hlist_head bpf_prog_free_security;
#endif /* CONFIG_BPF_SYSCALL */
+#ifdef CONFIG_PERF_EVENTS
+ struct hlist_head perf_event_open;
+ struct hlist_head perf_event_alloc;
+ struct hlist_head perf_event_free;
+ struct hlist_head perf_event_read;
+ struct hlist_head perf_event_write;
+#endif
} __randomize_layout;
/*
diff --git a/include/linux/math64.h b/include/linux/math64.h
index bb2c84a..38e4db5 100644
--- a/include/linux/math64.h
+++ b/include/linux/math64.h
@@ -3,6 +3,7 @@
#define _LINUX_MATH64_H
#include <linux/types.h>
+#include <vdso/math64.h>
#include <asm/div64.h>
#if BITS_PER_LONG == 64
@@ -142,25 +143,6 @@ static inline s64 div_s64(s64 dividend, s32 divisor)
u32 iter_div_u64_rem(u64 dividend, u32 divisor, u64 *remainder);
-static __always_inline u32
-__iter_div_u64_rem(u64 dividend, u32 divisor, u64 *remainder)
-{
- u32 ret = 0;
-
- while (dividend >= divisor) {
- /* The following asm() prevents the compiler from
- optimising this loop into a modulo operation. */
- asm("" : "+rm"(dividend));
-
- dividend -= divisor;
- ret++;
- }
-
- *remainder = dividend;
-
- return ret;
-}
-
#ifndef mul_u32_u32
/*
* Many a GCC version messes this up and generates a 64x64 mult :-(
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 2acdd04..7aa11ea 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -140,6 +140,7 @@ void __next_reserved_mem_region(u64 *idx, phys_addr_t *out_start,
void __memblock_free_early(phys_addr_t base, phys_addr_t size);
void __memblock_free_late(phys_addr_t base, phys_addr_t size);
+void create_pgtable_mapping(phys_addr_t start, phys_addr_t end);
/**
* for_each_mem_range - iterate through memblock areas from type_a and not
@@ -327,6 +328,7 @@ static inline bool memblock_bottom_up(void)
/* Flags for memblock_alloc_base() amd __memblock_alloc_base() */
#define MEMBLOCK_ALLOC_ANYWHERE (~(phys_addr_t)0)
#define MEMBLOCK_ALLOC_ACCESSIBLE 0
+#define MEMBLOCK_ALLOC_KASAN 1
phys_addr_t __init memblock_alloc_range(phys_addr_t size, phys_addr_t align,
phys_addr_t start, phys_addr_t end,
@@ -351,6 +353,7 @@ bool memblock_is_map_memory(phys_addr_t addr);
bool memblock_is_region_memory(phys_addr_t base, phys_addr_t size);
bool memblock_is_reserved(phys_addr_t addr);
bool memblock_is_region_reserved(phys_addr_t base, phys_addr_t size);
+bool memblock_overlaps_memory(phys_addr_t base, phys_addr_t size);
extern void __memblock_dump_all(void);
diff --git a/include/linux/mm.h b/include/linux/mm.h
index c736c67..ef85942 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -26,6 +26,7 @@
#include <linux/page_ref.h>
#include <linux/memremap.h>
#include <linux/overflow.h>
+#include <linux/android_kabi.h>
struct mempolicy;
struct anon_vma;
@@ -73,6 +74,17 @@ extern int mmap_rnd_compat_bits __read_mostly;
#include <asm/pgtable.h>
#include <asm/processor.h>
+/*
+ * Architectures that support memory tagging (assigning tags to memory regions,
+ * embedding these tags into addresses that point to these memory regions, and
+ * checking that the memory and the pointer tags match on memory accesses)
+ * redefine this macro to strip tags from pointers.
+ * It's defined as noop for arcitectures that don't support memory tagging.
+ */
+#ifndef untagged_addr
+#define untagged_addr(addr) (addr)
+#endif
+
#ifndef __pa_symbol
#define __pa_symbol(x) __pa(RELOC_HIDE((unsigned long)(x), 0))
#endif
@@ -450,6 +462,11 @@ struct vm_operations_struct {
*/
struct page *(*find_special_page)(struct vm_area_struct *vma,
unsigned long addr);
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
static inline void vma_init(struct vm_area_struct *vma, struct mm_struct *mm)
@@ -811,6 +828,7 @@ vm_fault_t finish_mkwrite_fault(struct vm_fault *vmf);
#define NODES_PGOFF (SECTIONS_PGOFF - NODES_WIDTH)
#define ZONES_PGOFF (NODES_PGOFF - ZONES_WIDTH)
#define LAST_CPUPID_PGOFF (ZONES_PGOFF - LAST_CPUPID_WIDTH)
+#define KASAN_TAG_PGOFF (LAST_CPUPID_PGOFF - KASAN_TAG_WIDTH)
/*
* Define the bit shifts to access each section. For non-existent
@@ -821,6 +839,7 @@ vm_fault_t finish_mkwrite_fault(struct vm_fault *vmf);
#define NODES_PGSHIFT (NODES_PGOFF * (NODES_WIDTH != 0))
#define ZONES_PGSHIFT (ZONES_PGOFF * (ZONES_WIDTH != 0))
#define LAST_CPUPID_PGSHIFT (LAST_CPUPID_PGOFF * (LAST_CPUPID_WIDTH != 0))
+#define KASAN_TAG_PGSHIFT (KASAN_TAG_PGOFF * (KASAN_TAG_WIDTH != 0))
/* NODE:ZONE or SECTION:ZONE is used to ID a zone for the buddy allocator */
#ifdef NODE_NOT_IN_PAGE_FLAGS
@@ -843,6 +862,7 @@ vm_fault_t finish_mkwrite_fault(struct vm_fault *vmf);
#define NODES_MASK ((1UL << NODES_WIDTH) - 1)
#define SECTIONS_MASK ((1UL << SECTIONS_WIDTH) - 1)
#define LAST_CPUPID_MASK ((1UL << LAST_CPUPID_SHIFT) - 1)
+#define KASAN_TAG_MASK ((1UL << KASAN_TAG_WIDTH) - 1)
#define ZONEID_MASK ((1UL << ZONEID_SHIFT) - 1)
static inline enum zone_type page_zonenum(const struct page *page)
@@ -1101,6 +1121,32 @@ static inline bool cpupid_match_pid(struct task_struct *task, int cpupid)
}
#endif /* CONFIG_NUMA_BALANCING */
+#ifdef CONFIG_KASAN_SW_TAGS
+static inline u8 page_kasan_tag(const struct page *page)
+{
+ return (page->flags >> KASAN_TAG_PGSHIFT) & KASAN_TAG_MASK;
+}
+
+static inline void page_kasan_tag_set(struct page *page, u8 tag)
+{
+ page->flags &= ~(KASAN_TAG_MASK << KASAN_TAG_PGSHIFT);
+ page->flags |= (tag & KASAN_TAG_MASK) << KASAN_TAG_PGSHIFT;
+}
+
+static inline void page_kasan_tag_reset(struct page *page)
+{
+ page_kasan_tag_set(page, 0xff);
+}
+#else
+static inline u8 page_kasan_tag(const struct page *page)
+{
+ return 0xff;
+}
+
+static inline void page_kasan_tag_set(struct page *page, u8 tag) { }
+static inline void page_kasan_tag_reset(struct page *page) { }
+#endif
+
static inline struct zone *page_zone(const struct page *page)
{
return &NODE_DATA(page_to_nid(page))->node_zones[page_zonenum(page)];
@@ -1621,19 +1667,28 @@ static inline unsigned long get_mm_counter(struct mm_struct *mm, int member)
return (unsigned long)val;
}
+void mm_trace_rss_stat(struct mm_struct *mm, int member, long count,
+ long value);
+
static inline void add_mm_counter(struct mm_struct *mm, int member, long value)
{
- atomic_long_add(value, &mm->rss_stat.count[member]);
+ long count = atomic_long_add_return(value, &mm->rss_stat.count[member]);
+
+ mm_trace_rss_stat(mm, member, count, value);
}
static inline void inc_mm_counter(struct mm_struct *mm, int member)
{
- atomic_long_inc(&mm->rss_stat.count[member]);
+ long count = atomic_long_inc_return(&mm->rss_stat.count[member]);
+
+ mm_trace_rss_stat(mm, member, count, 1);
}
static inline void dec_mm_counter(struct mm_struct *mm, int member)
{
- atomic_long_dec(&mm->rss_stat.count[member]);
+ long count = atomic_long_dec_return(&mm->rss_stat.count[member]);
+
+ mm_trace_rss_stat(mm, member, count, -1);
}
/* Optimized variant when page is already known not to be PageAnon */
@@ -2258,7 +2313,7 @@ static inline int vma_adjust(struct vm_area_struct *vma, unsigned long start,
extern struct vm_area_struct *vma_merge(struct mm_struct *,
struct vm_area_struct *prev, unsigned long addr, unsigned long end,
unsigned long vm_flags, struct anon_vma *, struct file *, pgoff_t,
- struct mempolicy *, struct vm_userfaultfd_ctx);
+ struct mempolicy *, struct vm_userfaultfd_ctx, const char __user *);
extern struct anon_vma *find_mergeable_anon_vma(struct vm_area_struct *);
extern int __split_vma(struct mm_struct *, struct vm_area_struct *,
unsigned long addr, int new_below);
@@ -2635,6 +2690,30 @@ static inline void kernel_poison_pages(struct page *page, int numpages,
int enable) { }
#endif
+#ifdef CONFIG_INIT_ON_ALLOC_DEFAULT_ON
+DECLARE_STATIC_KEY_TRUE(init_on_alloc);
+#else
+DECLARE_STATIC_KEY_FALSE(init_on_alloc);
+#endif
+static inline bool want_init_on_alloc(gfp_t flags)
+{
+ if (static_branch_unlikely(&init_on_alloc) &&
+ !page_poisoning_enabled())
+ return true;
+ return flags & __GFP_ZERO;
+}
+
+#ifdef CONFIG_INIT_ON_FREE_DEFAULT_ON
+DECLARE_STATIC_KEY_TRUE(init_on_free);
+#else
+DECLARE_STATIC_KEY_FALSE(init_on_free);
+#endif
+static inline bool want_init_on_free(void)
+{
+ return static_branch_unlikely(&init_on_free) &&
+ !page_poisoning_enabled();
+}
+
#ifdef CONFIG_DEBUG_PAGEALLOC
extern bool _debug_pagealloc_enabled;
extern void __kernel_map_pages(struct page *page, int numpages, int enable);
diff --git a/include/linux/mm_event.h b/include/linux/mm_event.h
new file mode 100644
index 0000000..0943d6e
--- /dev/null
+++ b/include/linux/mm_event.h
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_MM_EVENT_H
+#define _LINUX_MM_EVENT_H
+
+enum mm_event_type {
+ MM_MIN_FAULT = 0,
+ MM_MAJ_FAULT = 1,
+ MM_READ_IO = 2,
+ MM_COMPACTION = 3,
+ MM_RECLAIM = 4,
+ MM_SWP_FAULT = 5,
+ MM_KERN_ALLOC = 6,
+ BLK_READ_SUBMIT_BIO = 7,
+ UFS_READ_QUEUE_CMD = 8,
+ UFS_READ_SEND_CMD = 9,
+ UFS_READ_COMPL_CMD = 10,
+ F2FS_READ_DATA = 11,
+ MM_TYPE_NUM = 12,
+};
+
+struct mm_event_task {
+ unsigned int count;
+ unsigned int max_lat;
+ u64 accm_lat;
+} __attribute__ ((packed));
+
+#endif
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 3a9a996..718ba2e 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -14,6 +14,7 @@
#include <linux/uprobes.h>
#include <linux/page-flags-layout.h>
#include <linux/workqueue.h>
+#include <linux/android_kabi.h>
#include <asm/mmu.h>
@@ -295,11 +296,18 @@ struct vm_area_struct {
/*
* For areas with an address space and backing store,
* linkage into the address_space->i_mmap interval tree.
+ *
+ * For private anonymous mappings, a pointer to a null terminated string
+ * in the user process containing the name given to the vma, or NULL
+ * if unnamed.
*/
- struct {
- struct rb_node rb;
- unsigned long rb_subtree_last;
- } shared;
+ union {
+ struct {
+ struct rb_node rb;
+ unsigned long rb_subtree_last;
+ } shared;
+ const char __user *anon_name;
+ };
/*
* A file's MAP_PRIVATE vma can be in both i_mmap tree and anon_vma
@@ -328,6 +336,11 @@ struct vm_area_struct {
struct mempolicy *vm_policy; /* NUMA policy for the VMA */
#endif
struct vm_userfaultfd_ctx vm_userfaultfd_ctx;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
} __randomize_layout;
struct core_thread {
@@ -654,4 +667,13 @@ typedef struct {
unsigned long val;
} swp_entry_t;
+/* Return the name for an anonymous mapping or NULL for a file-backed mapping */
+static inline const char __user *vma_get_anon_name(struct vm_area_struct *vma)
+{
+ if (vma->vm_file)
+ return NULL;
+
+ return vma->anon_name;
+}
+
#endif /* _LINUX_MM_TYPES_H */
diff --git a/include/linux/mm_types_task.h b/include/linux/mm_types_task.h
index d7016dc..4a49e8f 100644
--- a/include/linux/mm_types_task.h
+++ b/include/linux/mm_types_task.h
@@ -41,6 +41,7 @@ enum {
MM_ANONPAGES, /* Resident anonymous pages */
MM_SWAPENTS, /* Anonymous swap entries */
MM_SHMEMPAGES, /* Resident shared memory pages */
+ MM_UNRECLAIMABLE, /* Unreclaimable pages, e.g. shared with HW */
NR_MM_COUNTERS
};
diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h
index 134a648..3485912 100644
--- a/include/linux/mmc/core.h
+++ b/include/linux/mmc/core.h
@@ -168,8 +168,25 @@ struct mmc_request {
bool cap_cmd_during_tfr;
int tag;
+#ifdef CONFIG_MMC_CRYPTO
+ int crypto_key_slot;
+ u64 data_unit_num;
+ const struct blk_crypto_key *crypto_key;
+#endif
};
+#ifdef CONFIG_MMC_CRYPTO
+static inline bool mmc_request_crypto_enabled(const struct mmc_request *mrq)
+{
+ return mrq->crypto_key != NULL;
+}
+#else
+static inline bool mmc_request_crypto_enabled(const struct mmc_request *mrq)
+{
+ return false;
+}
+#endif
+
struct mmc_card;
void mmc_wait_for_req(struct mmc_host *host, struct mmc_request *mrq);
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 7e8e5b2..03f6572 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -368,6 +368,7 @@ struct mmc_host {
#define MMC_CAP2_CQE (1 << 23) /* Has eMMC command queue engine */
#define MMC_CAP2_CQE_DCMD (1 << 24) /* CQE can issue a direct command */
#define MMC_CAP2_AVOID_3_3V (1 << 25) /* Host must negotiate down from 3.3V */
+#define MMC_CAP2_CRYPTO (1 << 27) /* Host supports inline encryption */
int fixed_drv_type; /* fixed driver type for non-removable media */
@@ -459,6 +460,9 @@ struct mmc_host {
int cqe_qdepth;
bool cqe_enabled;
bool cqe_on;
+#ifdef CONFIG_MMC_CRYPTO
+ struct keyslot_manager *ksm;
+#endif /* CONFIG_MMC_CRYPTO */
unsigned long private[0] ____cacheline_aligned;
};
diff --git a/include/linux/mmc/pm.h b/include/linux/mmc/pm.h
index 4a13920..6e2d6a1 100644
--- a/include/linux/mmc/pm.h
+++ b/include/linux/mmc/pm.h
@@ -26,5 +26,6 @@ typedef unsigned int mmc_pm_flag_t;
#define MMC_PM_KEEP_POWER (1 << 0) /* preserve card power during suspend */
#define MMC_PM_WAKE_SDIO_IRQ (1 << 1) /* wake up host system on SDIO IRQ assertion */
+#define MMC_PM_IGNORE_PM_NOTIFY (1 << 2) /* ignore mmc pm notify */
#endif /* LINUX_MMC_PM_H */
diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h
index 133ba78..bf1a874 100644
--- a/include/linux/mmu_notifier.h
+++ b/include/linux/mmu_notifier.h
@@ -7,6 +7,7 @@
#include <linux/spinlock.h>
#include <linux/mm_types.h>
#include <linux/srcu.h>
+#include <linux/android_kabi.h>
struct mmu_notifier;
struct mmu_notifier_ops;
@@ -188,6 +189,11 @@ struct mmu_notifier_ops {
*/
void (*invalidate_range)(struct mmu_notifier *mn, struct mm_struct *mm,
unsigned long start, unsigned long end);
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
/*
@@ -204,6 +210,9 @@ struct mmu_notifier_ops {
struct mmu_notifier {
struct hlist_node hlist;
const struct mmu_notifier_ops *ops;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
};
static inline int mm_has_notifiers(struct mm_struct *mm)
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index fa02014..96d614a 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -18,6 +18,7 @@
#include <linux/pageblock-flags.h>
#include <linux/page-flags-layout.h>
#include <linux/atomic.h>
+#include <linux/android_kabi.h>
#include <asm/page.h>
/* Free memory management - zoned buddy allocator. */
@@ -40,8 +41,6 @@ enum migratetype {
MIGRATE_UNMOVABLE,
MIGRATE_MOVABLE,
MIGRATE_RECLAIMABLE,
- MIGRATE_PCPTYPES, /* the number of types on the pcp lists */
- MIGRATE_HIGHATOMIC = MIGRATE_PCPTYPES,
#ifdef CONFIG_CMA
/*
* MIGRATE_CMA migration type is designed to mimic the way
@@ -58,6 +57,8 @@ enum migratetype {
*/
MIGRATE_CMA,
#endif
+ MIGRATE_PCPTYPES, /* the number of types on the pcp lists */
+ MIGRATE_HIGHATOMIC = MIGRATE_PCPTYPES,
#ifdef CONFIG_MEMORY_ISOLATION
MIGRATE_ISOLATE, /* can't allocate from here */
#endif
@@ -70,9 +71,11 @@ extern char * const migratetype_names[MIGRATE_TYPES];
#ifdef CONFIG_CMA
# define is_migrate_cma(migratetype) unlikely((migratetype) == MIGRATE_CMA)
# define is_migrate_cma_page(_page) (get_pageblock_migratetype(_page) == MIGRATE_CMA)
+# define get_cma_migrate_type() MIGRATE_CMA
#else
# define is_migrate_cma(migratetype) false
# define is_migrate_cma_page(_page) false
+# define get_cma_migrate_type() MIGRATE_MOVABLE
#endif
static inline bool is_migrate_movable(int mt)
@@ -142,6 +145,9 @@ enum zone_stat_item {
NR_MLOCK, /* mlock()ed pages found and moved off LRU */
NR_PAGETABLE, /* used for pagetables */
NR_KERNEL_STACK_KB, /* measured in KiB */
+#if IS_ENABLED(CONFIG_SHADOW_CALL_STACK)
+ NR_KERNEL_SCS_BYTES, /* measured in bytes */
+#endif
/* Second 128 byte cacheline */
NR_BOUNCE,
#if IS_ENABLED(CONFIG_ZSMALLOC)
@@ -163,6 +169,7 @@ enum node_stat_item {
NR_ISOLATED_FILE, /* Temporary isolated pages from file lru */
WORKINGSET_REFAULT,
WORKINGSET_ACTIVATE,
+ WORKINGSET_RESTORE,
WORKINGSET_NODERECLAIM,
NR_ANON_MAPPED, /* Mapped anonymous pages */
NR_FILE_MAPPED, /* pagecache pages mapped into pagetables.
@@ -180,7 +187,11 @@ enum node_stat_item {
NR_VMSCAN_IMMEDIATE, /* Prioritise for reclaim when writeback ends */
NR_DIRTIED, /* page dirtyings since bootup */
NR_WRITTEN, /* page writings since bootup */
- NR_INDIRECTLY_RECLAIMABLE_BYTES, /* measured in bytes */
+ NR_KERNEL_MISC_RECLAIMABLE, /* reclaimable non-slab kernel pages */
+ NR_UNRECLAIMABLE_PAGES,
+ NR_ION_HEAP,
+ NR_ION_HEAP_POOL,
+ NR_GPU_HEAP,
NR_VM_NODE_STAT_ITEMS
};
@@ -381,6 +392,10 @@ struct zone {
struct pglist_data *zone_pgdat;
struct per_cpu_pageset __percpu *pageset;
+#ifdef CONFIG_CMA
+ bool cma_alloc;
+#endif
+
#ifndef CONFIG_SPARSEMEM
/*
* Flags for a pageblock_nr_pages block. See pageblock-flags.h.
@@ -506,6 +521,11 @@ struct zone {
/* Zone statistics */
atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS];
atomic_long_t vm_numa_stat[NR_VM_NUMA_STAT_ITEMS];
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
} ____cacheline_internodealigned_in_smp;
enum pgdat_flags {
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 610cdf8..0b4a8c3 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -299,7 +299,7 @@ struct pcmcia_device_id {
#define INPUT_DEVICE_ID_LED_MAX 0x0f
#define INPUT_DEVICE_ID_SND_MAX 0x07
#define INPUT_DEVICE_ID_FF_MAX 0x7f
-#define INPUT_DEVICE_ID_SW_MAX 0x10
+#define INPUT_DEVICE_ID_SW_MAX 0x20
#define INPUT_DEVICE_ID_PROP_MAX 0x1f
#define INPUT_DEVICE_ID_MATCH_BUS 1
diff --git a/include/linux/module.h b/include/linux/module.h
index 008cfc0..ebfa6af 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -21,6 +21,8 @@
#include <linux/rbtree_latch.h>
#include <linux/error-injection.h>
#include <linux/tracepoint-defs.h>
+#include <linux/cfi.h>
+#include <linux/android_kabi.h>
#include <linux/percpu.h>
#include <asm/module.h>
@@ -348,6 +350,10 @@ struct module {
const s32 *crcs;
unsigned int num_syms;
+#ifdef CONFIG_CFI_CLANG
+ cfi_check_fn cfi_check;
+#endif
+
/* Kernel parameters. */
#ifdef CONFIG_SYSFS
struct mutex param_lock;
@@ -359,7 +365,6 @@ struct module {
unsigned int num_gpl_syms;
const struct kernel_symbol *gpl_syms;
const s32 *gpl_crcs;
- bool using_gplonly_symbols;
#ifdef CONFIG_UNUSED_SYMBOLS
/* unused exported symbols. */
@@ -373,10 +378,12 @@ struct module {
const s32 *unused_gpl_crcs;
#endif
-#ifdef CONFIG_MODULE_SIG
- /* Signature was verified. */
+ /*
+ * Signature was verified. Unconditionally compiled in Android to
+ * preserve ABI compatibility between kernels without module
+ * signing enabled and signed modules.
+ */
bool sig_ok;
-#endif
bool async_probe_requested;
@@ -483,6 +490,10 @@ struct module {
struct error_injection_entry *ei_funcs;
unsigned int num_ei_funcs;
#endif
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
} ____cacheline_aligned __randomize_layout;
#ifndef MODULE_ARCH_INIT
#define MODULE_ARCH_INIT {}
@@ -663,6 +674,23 @@ static inline bool is_module_text_address(unsigned long addr)
return false;
}
+static inline bool within_module_core(unsigned long addr,
+ const struct module *mod)
+{
+ return false;
+}
+
+static inline bool within_module_init(unsigned long addr,
+ const struct module *mod)
+{
+ return false;
+}
+
+static inline bool within_module(unsigned long addr, const struct module *mod)
+{
+ return false;
+}
+
/* Get/put a kernel symbol (calls should be symmetric) */
#define symbol_get(x) ({ extern typeof(x) x __attribute__((weak)); &(x); })
#define symbol_put(x) do { } while (0)
diff --git a/include/linux/mount.h b/include/linux/mount.h
index 4b0db44..adcc8f01 100644
--- a/include/linux/mount.h
+++ b/include/linux/mount.h
@@ -16,6 +16,7 @@
#include <linux/spinlock.h>
#include <linux/seqlock.h>
#include <linux/atomic.h>
+#include <linux/android_kabi.h>
struct super_block;
struct vfsmount;
@@ -68,6 +69,11 @@ struct vfsmount {
struct dentry *mnt_root; /* root of the mounted tree */
struct super_block *mnt_sb; /* pointer to superblock */
int mnt_flags;
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
+ void *data;
} __randomize_layout;
struct file; /* forward dec */
diff --git a/include/linux/msi.h b/include/linux/msi.h
index 62982e6a..5dd1718 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -150,7 +150,7 @@ void __pci_read_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
void __pci_write_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
u32 __pci_msix_desc_mask_irq(struct msi_desc *desc, u32 flag);
-void __pci_msi_desc_mask_irq(struct msi_desc *desc, u32 mask, u32 flag);
+u32 __pci_msi_desc_mask_irq(struct msi_desc *desc, u32 mask, u32 flag);
void pci_msi_mask_irq(struct irq_data *data);
void pci_msi_unmask_irq(struct irq_data *data);
diff --git a/include/linux/ndctl.h b/include/linux/ndctl.h
new file mode 100644
index 0000000..cd5a293
--- /dev/null
+++ b/include/linux/ndctl.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2014-2016, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU Lesser General Public License,
+ * version 2.1, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
+ * more details.
+ */
+#ifndef _LINUX_NDCTL_H
+#define _LINUX_NDCTL_H
+
+#include <uapi/linux/ndctl.h>
+
+enum {
+ ND_MIN_NAMESPACE_SIZE = PAGE_SIZE,
+};
+
+#endif /* _LINUX_NDCTL_H */
diff --git a/include/linux/net.h b/include/linux/net.h
index 41dc703..ed648c7 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -25,6 +25,7 @@
#include <linux/rcupdate.h>
#include <linux/once.h>
#include <linux/fs.h>
+#include <linux/android_kabi.h>
#include <uapi/linux/net.h>
@@ -204,6 +205,11 @@ struct proto_ops {
int (*sendmsg_locked)(struct sock *sk, struct msghdr *msg,
size_t size);
int (*set_rcvlowat)(struct sock *sk, int val);
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
#define DECLARE_SOCKADDR(type, dst, src) \
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index fbd689c..7cd8205 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -52,6 +52,7 @@
#include <uapi/linux/if_bonding.h>
#include <uapi/linux/pkt_cls.h>
#include <linux/hashtable.h>
+#include <linux/android_kabi.h>
struct netpoll_info;
struct device;
@@ -274,7 +275,9 @@ struct header_ops {
const struct net_device *dev,
const unsigned char *haddr);
bool (*validate)(const char *ll_header, unsigned int len);
- __be16 (*parse_protocol)(const struct sk_buff *skb);
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
};
/* These flag bits are private to the generic network queueing
@@ -340,6 +343,11 @@ struct napi_struct {
struct list_head dev_list;
struct hlist_node napi_hash_node;
unsigned int napi_id;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
enum {
@@ -599,6 +607,11 @@ struct netdev_queue {
#ifdef CONFIG_BQL
struct dql dql;
#endif
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
} ____cacheline_aligned_in_smp;
extern int sysctl_fb_tunnels_only_for_init_net;
@@ -713,6 +726,11 @@ struct netdev_rx_queue {
struct kobject kobj;
struct net_device *dev;
struct xdp_rxq_info xdp_rxq;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
} ____cacheline_aligned_in_smp;
/*
@@ -889,6 +907,11 @@ struct xfrmdev_ops {
bool (*xdo_dev_offload_ok) (struct sk_buff *skb,
struct xfrm_state *x);
void (*xdo_dev_state_advance_esn) (struct xfrm_state *x);
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
#endif
@@ -911,6 +934,10 @@ struct tlsdev_ops {
enum tls_offload_ctx_dir direction);
void (*tls_dev_resync_rx)(struct net_device *netdev,
struct sock *sk, u32 seq, u64 rcd_sn);
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
#endif
@@ -1411,6 +1438,15 @@ struct net_device_ops {
u32 flags);
int (*ndo_xsk_async_xmit)(struct net_device *dev,
u32 queue_id);
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
+ ANDROID_KABI_RESERVE(5);
+ ANDROID_KABI_RESERVE(6);
+ ANDROID_KABI_RESERVE(7);
+ ANDROID_KABI_RESERVE(8);
};
/**
@@ -2033,6 +2069,16 @@ struct net_device {
struct lock_class_key *qdisc_running_key;
bool proto_down;
unsigned wol_enabled:1;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
+ ANDROID_KABI_RESERVE(5);
+ ANDROID_KABI_RESERVE(6);
+ ANDROID_KABI_RESERVE(7);
+ ANDROID_KABI_RESERVE(8);
+
};
#define to_net_dev(d) container_of(d, struct net_device, dev)
@@ -2348,6 +2394,11 @@ struct packet_type {
struct sock *sk);
void *af_packet_priv;
struct list_head list;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
struct offload_callbacks {
@@ -2896,15 +2947,6 @@ static inline int dev_parse_header(const struct sk_buff *skb,
return dev->header_ops->parse(skb, haddr);
}
-static inline __be16 dev_parse_header_protocol(const struct sk_buff *skb)
-{
- const struct net_device *dev = skb->dev;
-
- if (!dev->header_ops || !dev->header_ops->parse_protocol)
- return 0;
- return dev->header_ops->parse_protocol(skb);
-}
-
/* ll_header must have at least hard_header_len allocated */
static inline bool dev_validate_header(const struct net_device *dev,
char *ll_header, int len)
@@ -2951,12 +2993,16 @@ extern int netdev_flow_limit_table_len;
*/
struct softnet_data {
struct list_head poll_list;
+ struct napi_struct *current_napi;
struct sk_buff_head process_queue;
/* stats */
unsigned int processed;
unsigned int time_squeeze;
unsigned int received_rps;
+ /* unused partner variable for ABI alignment */
+ unsigned int gro_coalesced;
+
#ifdef CONFIG_RPS
struct softnet_data *rps_ipi_list;
#endif
@@ -3580,6 +3626,7 @@ struct sk_buff *napi_get_frags(struct napi_struct *napi);
gro_result_t napi_gro_frags(struct napi_struct *napi);
struct packet_offload *gro_find_receive_by_type(__be16 type);
struct packet_offload *gro_find_complete_by_type(__be16 type);
+extern struct napi_struct *get_current_napi_context(void);
static inline void napi_free_frags(struct napi_struct *napi)
{
diff --git a/include/linux/netfilter/xt_quota2.h b/include/linux/netfilter/xt_quota2.h
new file mode 100644
index 0000000..eadc69033
--- /dev/null
+++ b/include/linux/netfilter/xt_quota2.h
@@ -0,0 +1,25 @@
+#ifndef _XT_QUOTA_H
+#define _XT_QUOTA_H
+
+enum xt_quota_flags {
+ XT_QUOTA_INVERT = 1 << 0,
+ XT_QUOTA_GROW = 1 << 1,
+ XT_QUOTA_PACKET = 1 << 2,
+ XT_QUOTA_NO_CHANGE = 1 << 3,
+ XT_QUOTA_MASK = 0x0F,
+};
+
+struct xt_quota_counter;
+
+struct xt_quota_mtinfo2 {
+ char name[15];
+ u_int8_t flags;
+
+ /* Comparison-invariant */
+ aligned_u64 quota;
+
+ /* Used internally by the kernel */
+ struct xt_quota_counter *master __attribute__((aligned(8)));
+};
+
+#endif /* _XT_QUOTA_H */
diff --git a/include/linux/nvmem-consumer.h b/include/linux/nvmem-consumer.h
index 4e85447..0389fe0 100644
--- a/include/linux/nvmem-consumer.h
+++ b/include/linux/nvmem-consumer.h
@@ -55,6 +55,8 @@ ssize_t nvmem_device_cell_read(struct nvmem_device *nvmem,
int nvmem_device_cell_write(struct nvmem_device *nvmem,
struct nvmem_cell_info *info, void *buf);
+const char *nvmem_dev_name(struct nvmem_device *nvmem);
+
#else
static inline struct nvmem_cell *nvmem_cell_get(struct device *dev,
@@ -143,6 +145,12 @@ static inline int nvmem_device_write(struct nvmem_device *nvmem,
{
return -ENOSYS;
}
+
+static inline const char *nvmem_dev_name(struct nvmem_device *nvmem)
+{
+ return NULL;
+}
+
#endif /* CONFIG_NVMEM */
#if IS_ENABLED(CONFIG_NVMEM) && IS_ENABLED(CONFIG_OF)
diff --git a/include/linux/nvmem-provider.h b/include/linux/nvmem-provider.h
index 24def6a..c4b8430 100644
--- a/include/linux/nvmem-provider.h
+++ b/include/linux/nvmem-provider.h
@@ -67,6 +67,25 @@ struct nvmem_config {
struct device *base_dev;
};
+/**
+ * struct nvmem_cell_table - NVMEM cell definitions for given provider
+ *
+ * @nvmem_name: Provider name.
+ * @cells: Array of cell definitions.
+ * @ncells: Number of cell definitions in the array.
+ * @node: List node.
+ *
+ * This structure together with related helper functions is provided for users
+ * that don't can't access the nvmem provided structure but wish to register
+ * cell definitions for it e.g. board files registering an EEPROM device.
+ */
+struct nvmem_cell_table {
+ const char *nvmem_name;
+ const struct nvmem_cell_info *cells;
+ size_t ncells;
+ struct list_head node;
+};
+
#if IS_ENABLED(CONFIG_NVMEM)
struct nvmem_device *nvmem_register(const struct nvmem_config *cfg);
@@ -77,9 +96,9 @@ struct nvmem_device *devm_nvmem_register(struct device *dev,
int devm_nvmem_unregister(struct device *dev, struct nvmem_device *nvmem);
-int nvmem_add_cells(struct nvmem_device *nvmem,
- const struct nvmem_cell_info *info,
- int ncells);
+void nvmem_add_cell_table(struct nvmem_cell_table *table);
+void nvmem_del_cell_table(struct nvmem_cell_table *table);
+
#else
static inline struct nvmem_device *nvmem_register(const struct nvmem_config *c)
@@ -105,12 +124,8 @@ devm_nvmem_unregister(struct device *dev, struct nvmem_device *nvmem)
}
-static inline int nvmem_add_cells(struct nvmem_device *nvmem,
- const struct nvmem_cell_info *info,
- int ncells)
-{
- return -ENOSYS;
-}
+static inline void nvmem_add_cell_table(struct nvmem_cell_table *table) {}
+static inline void nvmem_del_cell_table(struct nvmem_cell_table *table) {}
#endif /* CONFIG_NVMEM */
#endif /* ifndef _LINUX_NVMEM_PROVIDER_H */
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h
index b9cd9eb..280bffad 100644
--- a/include/linux/of_fdt.h
+++ b/include/linux/of_fdt.h
@@ -47,6 +47,9 @@ extern char __dtb_end[];
/* Other Prototypes */
extern u64 of_flat_dt_translate_address(unsigned long node);
extern void of_fdt_limit_memory(int limit);
+extern int of_fdt_get_ddrtype(void);
+extern int of_fdt_get_ddrrank(int channel);
+extern int of_fdt_get_ddrhbb(int channel, int rank);
#endif /* CONFIG_OF_FLATTREE */
#ifdef CONFIG_OF_EARLY_FLATTREE
@@ -69,6 +72,27 @@ extern unsigned long of_get_flat_dt_root(void);
extern int of_get_flat_dt_size(void);
extern uint32_t of_get_flat_dt_phandle(unsigned long node);
+/*
+ * early_init_dt_scan_chosen - scan the device tree for ramdisk and bootargs
+ *
+ * The boot arguments will be placed into the memory pointed to by @data.
+ * That memory should be COMMAND_LINE_SIZE big and initialized to be a valid
+ * (possibly empty) string. Logic for what will be in @data after this
+ * function finishes:
+ *
+ * - CONFIG_CMDLINE_FORCE=true
+ * CONFIG_CMDLINE
+ * - CONFIG_CMDLINE_EXTEND=true, @data is non-empty string
+ * @data + dt bootargs (even if dt bootargs are empty)
+ * - CONFIG_CMDLINE_EXTEND=true, @data is empty string
+ * CONFIG_CMDLINE + dt bootargs (even if dt bootargs are empty)
+ * - CMDLINE_FROM_BOOTLOADER=true, dt bootargs=non-empty:
+ * dt bootargs
+ * - CMDLINE_FROM_BOOTLOADER=true, dt bootargs=empty, @data is non-empty string
+ * @data is left unchanged
+ * - CMDLINE_FROM_BOOTLOADER=true, dt bootargs=empty, @data is empty string
+ * CONFIG_CMDLINE (or "" if that's not defined)
+ */
extern int early_init_dt_scan_chosen(unsigned long node, const char *uname,
int depth, void *data);
extern int early_init_dt_scan_memory(unsigned long node, const char *uname,
diff --git a/include/linux/of_irq.h b/include/linux/of_irq.h
index 1214cab..8634250 100644
--- a/include/linux/of_irq.h
+++ b/include/linux/of_irq.h
@@ -32,6 +32,7 @@ static inline int of_irq_parse_oldworld(struct device_node *device, int index,
}
#endif /* CONFIG_PPC32 && CONFIG_PPC_PMAC */
+extern int of_irq_domain_map(const struct irq_fwspec *in, struct irq_fwspec *out);
extern int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq);
extern int of_irq_parse_one(struct device_node *device, int index,
struct of_phandle_args *out_irq);
diff --git a/include/linux/padata.h b/include/linux/padata.h
index 8c9827c..d803397 100644
--- a/include/linux/padata.h
+++ b/include/linux/padata.h
@@ -138,8 +138,7 @@ struct parallel_data {
/**
* struct padata_instance - The overall control structure.
*
- * @cpu_online_node: Linkage for CPU online callback.
- * @cpu_dead_node: Linkage for CPU offline callback.
+ * @cpu_notifier: cpu hotplug notifier.
* @wq: The workqueue in use.
* @pd: The internal control structure.
* @cpumask: User supplied cpumasks for parallel and serial works.
@@ -151,8 +150,7 @@ struct parallel_data {
* @flags: padata flags.
*/
struct padata_instance {
- struct hlist_node cpu_online_node;
- struct hlist_node cpu_dead_node;
+ struct hlist_node node;
struct workqueue_struct *wq;
struct parallel_data *pd;
struct padata_cpumask cpumask;
diff --git a/include/linux/page-flags-layout.h b/include/linux/page-flags-layout.h
index 7ec86bf..7128373 100644
--- a/include/linux/page-flags-layout.h
+++ b/include/linux/page-flags-layout.h
@@ -32,6 +32,7 @@
#endif /* CONFIG_SPARSEMEM */
+#ifndef BUILD_VDSO32_64
/*
* page->flags layout:
*
@@ -76,12 +77,24 @@
#define LAST_CPUPID_SHIFT 0
#endif
-#if SECTIONS_WIDTH+ZONES_WIDTH+NODES_SHIFT+LAST_CPUPID_SHIFT <= BITS_PER_LONG - NR_PAGEFLAGS
+#ifdef CONFIG_KASAN_SW_TAGS
+#define KASAN_TAG_WIDTH 8
+#else
+#define KASAN_TAG_WIDTH 0
+#endif
+
+#if SECTIONS_WIDTH+ZONES_WIDTH+NODES_SHIFT+LAST_CPUPID_SHIFT+KASAN_TAG_WIDTH \
+ <= BITS_PER_LONG - NR_PAGEFLAGS
#define LAST_CPUPID_WIDTH LAST_CPUPID_SHIFT
#else
#define LAST_CPUPID_WIDTH 0
#endif
+#if SECTIONS_WIDTH+NODES_WIDTH+ZONES_WIDTH+LAST_CPUPID_WIDTH+KASAN_TAG_WIDTH \
+ > BITS_PER_LONG - NR_PAGEFLAGS
+#error "Not enough bits in page flags"
+#endif
+
/*
* We are going to use the flags for the page to node mapping if its in
* there. This includes the case where there is no node, so it is implicit.
@@ -94,4 +107,5 @@
#define LAST_CPUPID_NOT_IN_PAGE_FLAGS
#endif
+#endif
#endif /* _LINUX_PAGE_FLAGS_LAYOUT */
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index f6e9433..260c442 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -69,13 +69,14 @@
*/
enum pageflags {
PG_locked, /* Page is locked. Don't touch. */
- PG_error,
PG_referenced,
PG_uptodate,
PG_dirty,
PG_lru,
PG_active,
+ PG_workingset,
PG_waiters, /* Page has waiters, check its waitqueue. Must be bit #7 and in the same byte as "PG_locked" */
+ PG_error,
PG_slab,
PG_owner_priv_1, /* Owner use. If pagecache, fs may use*/
PG_arch_1,
@@ -280,6 +281,8 @@ PAGEFLAG(Dirty, dirty, PF_HEAD) TESTSCFLAG(Dirty, dirty, PF_HEAD)
PAGEFLAG(LRU, lru, PF_HEAD) __CLEARPAGEFLAG(LRU, lru, PF_HEAD)
PAGEFLAG(Active, active, PF_HEAD) __CLEARPAGEFLAG(Active, active, PF_HEAD)
TESTCLEARFLAG(Active, active, PF_HEAD)
+PAGEFLAG(Workingset, workingset, PF_HEAD)
+ TESTCLEARFLAG(Workingset, workingset, PF_HEAD)
__PAGEFLAG(Slab, slab, PF_NO_TAIL)
__PAGEFLAG(SlobFree, slob_free, PF_NO_TAIL)
PAGEFLAG(Checked, checked, PF_NO_COMPOUND) /* Used by some filesystems */
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 33b63b2..e6cebce 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -252,6 +252,7 @@ pgoff_t page_cache_prev_hole(struct address_space *mapping,
#define FGP_WRITE 0x00000008
#define FGP_NOFS 0x00000010
#define FGP_NOWAIT 0x00000020
+#define FGP_FOR_MMAP 0x00000040
struct page *pagecache_get_page(struct address_space *mapping, pgoff_t offset,
int fgp_flags, gfp_t cache_gfp_mask);
@@ -398,8 +399,7 @@ extern int read_cache_pages(struct address_space *mapping,
static inline struct page *read_mapping_page(struct address_space *mapping,
pgoff_t index, void *data)
{
- filler_t *filler = (filler_t *)mapping->a_ops->readpage;
- return read_cache_page(mapping, index, filler, data);
+ return read_cache_page(mapping, index, NULL, data);
}
/*
@@ -462,9 +462,9 @@ static inline pgoff_t linear_page_index(struct vm_area_struct *vma,
return pgoff;
}
-extern void __lock_page(struct page *page);
-extern int __lock_page_killable(struct page *page);
-extern int __lock_page_or_retry(struct page *page, struct mm_struct *mm,
+extern void __sched __lock_page(struct page *page);
+extern int __sched __lock_page_killable(struct page *page);
+extern int __sched __lock_page_or_retry(struct page *page, struct mm_struct *mm,
unsigned int flags);
extern void unlock_page(struct page *page);
@@ -477,7 +477,7 @@ static inline int trylock_page(struct page *page)
/*
* lock_page may only be called if we have the page's inode pinned.
*/
-static inline void lock_page(struct page *page)
+static inline __sched void lock_page(struct page *page)
{
might_sleep();
if (!trylock_page(page))
@@ -489,7 +489,7 @@ static inline void lock_page(struct page *page)
* signals. It returns 0 if it locked the page and -EINTR if it was
* killed while waiting.
*/
-static inline int lock_page_killable(struct page *page)
+static inline __sched int lock_page_killable(struct page *page)
{
might_sleep();
if (!trylock_page(page))
@@ -504,8 +504,9 @@ static inline int lock_page_killable(struct page *page)
* Return value and mmap_sem implications depend on flags; see
* __lock_page_or_retry().
*/
-static inline int lock_page_or_retry(struct page *page, struct mm_struct *mm,
- unsigned int flags)
+static inline __sched int lock_page_or_retry(struct page *page,
+ struct mm_struct *mm,
+ unsigned int flags)
{
might_sleep();
return trylock_page(page) || __lock_page_or_retry(page, mm, flags);
@@ -515,8 +516,8 @@ static inline int lock_page_or_retry(struct page *page, struct mm_struct *mm,
* This is exported only for wait_on_page_locked/wait_on_page_writeback, etc.,
* and should not be used directly.
*/
-extern void wait_on_page_bit(struct page *page, int bit_nr);
-extern int wait_on_page_bit_killable(struct page *page, int bit_nr);
+extern void __sched wait_on_page_bit(struct page *page, int bit_nr);
+extern int __sched wait_on_page_bit_killable(struct page *page, int bit_nr);
/*
* Wait for a page to be unlocked.
@@ -525,13 +526,13 @@ extern int wait_on_page_bit_killable(struct page *page, int bit_nr);
* ie with increased "page->count" so that the page won't
* go away during the wait..
*/
-static inline void wait_on_page_locked(struct page *page)
+static inline __sched void wait_on_page_locked(struct page *page)
{
if (PageLocked(page))
wait_on_page_bit(compound_head(page), PG_locked);
}
-static inline int wait_on_page_locked_killable(struct page *page)
+static inline __sched int wait_on_page_locked_killable(struct page *page)
{
if (!PageLocked(page))
return 0;
@@ -541,7 +542,7 @@ static inline int wait_on_page_locked_killable(struct page *page)
/*
* Wait for a page to complete writeback
*/
-static inline void wait_on_page_writeback(struct page *page)
+static inline __sched void wait_on_page_writeback(struct page *page)
{
if (PageWriteback(page))
wait_on_page_bit(page, PG_writeback);
diff --git a/include/linux/parser.h b/include/linux/parser.h
index 12fc348..89e2b23 100644
--- a/include/linux/parser.h
+++ b/include/linux/parser.h
@@ -7,7 +7,8 @@
* but could potentially be used anywhere else that simple option=arg
* parsing is required.
*/
-
+#ifndef _LINUX_PARSER_H
+#define _LINUX_PARSER_H
/* associates an integer enumerator with a pattern string. */
struct match_token {
@@ -34,3 +35,5 @@ int match_hex(substring_t *, int *result);
bool match_wildcard(const char *pattern, const char *str);
size_t match_strlcpy(char *, const substring_t *, size_t);
char *match_strdup(const substring_t *);
+
+#endif /* _LINUX_PARSER_H */
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 6f9ca2f..4784070 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -35,6 +35,7 @@
#include <uapi/linux/pci.h>
#include <linux/pci_ids.h>
+#include <linux/android_kabi.h>
/*
* The PCI interface treats multi-function devices as independent
@@ -333,6 +334,7 @@ struct pci_dev {
unsigned int d2_support:1; /* Low power state D2 is supported */
unsigned int no_d1d2:1; /* D1 and D2 are forbidden */
unsigned int no_d3cold:1; /* D3cold is forbidden */
+ unsigned int no_d3hot:1; /* D3hot is forbidden */
unsigned int bridge_d3:1; /* Allow D3 for bridge */
unsigned int d3cold_allowed:1; /* D3cold is allowed by user */
unsigned int mmio_always_on:1; /* Disallow turning off io/mem
@@ -373,9 +375,6 @@ struct pci_dev {
bool match_driver; /* Skip attaching driver */
unsigned int transparent:1; /* Subtractive decode bridge */
- unsigned int io_window:1; /* Bridge has I/O window */
- unsigned int pref_window:1; /* Bridge has pref mem window */
- unsigned int pref_64_window:1; /* Pref mem window is 64-bit */
unsigned int multifunction:1; /* Multi-function device */
unsigned int is_busmaster:1; /* Is busmaster */
@@ -449,6 +448,11 @@ struct pci_dev {
char *driver_override; /* Driver name to force a match */
unsigned long priv_flags; /* Private flags for the PCI driver */
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
static inline struct pci_dev *pci_physfn(struct pci_dev *dev)
@@ -579,6 +583,11 @@ struct pci_bus {
struct bin_attribute *legacy_io; /* Legacy I/O for this bus */
struct bin_attribute *legacy_mem; /* Legacy mem */
unsigned int is_added:1;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
#define to_pci_bus(n) container_of(n, struct pci_bus, dev)
@@ -770,6 +779,11 @@ struct pci_driver {
const struct attribute_group **groups;
struct device_driver driver;
struct pci_dynids dynids;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
#define to_pci_driver(drv) container_of(drv, struct pci_driver, driver)
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index efe30b9..678ccb2 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -55,6 +55,7 @@ struct perf_guest_info_callbacks {
#include <linux/perf_regs.h>
#include <linux/workqueue.h>
#include <linux/cgroup.h>
+#include <linux/security.h>
#include <asm/local.h>
struct perf_callchain_entry {
@@ -267,6 +268,8 @@ struct pmu {
atomic_t exclusive_cnt; /* < 0: cpu; > 0: tsk */
int task_ctx_nr;
int hrtimer_interval_ms;
+ u32 events_across_hotplug:1,
+ reserved:31;
/* number of address filters this PMU can do */
unsigned int nr_addr_filters;
@@ -503,6 +506,7 @@ struct perf_addr_filter_range {
* enum perf_event_state - the states of an event:
*/
enum perf_event_state {
+ PERF_EVENT_STATE_DORMANT = -5,
PERF_EVENT_STATE_DEAD = -4,
PERF_EVENT_STATE_EXIT = -3,
PERF_EVENT_STATE_ERROR = -2,
@@ -647,6 +651,7 @@ struct perf_event {
int oncpu;
int cpu;
+ cpumask_t readable_on_cpus;
struct list_head owner_entry;
struct task_struct *owner;
@@ -704,7 +709,16 @@ struct perf_event {
struct perf_cgroup *cgrp; /* cgroup event is attach to */
#endif
+#ifdef CONFIG_SECURITY
+ void *security;
+#endif
struct list_head sb_list;
+ /* Is this event shared with other events */
+ bool shared;
+
+ /* TODO: need to cherry-pick 3d3eb5fb85d97. This is just padding for now
+ * to reduce the ABI diff */
+ struct list_head dormant_event_entry;
#endif /* CONFIG_PERF_EVENTS */
};
@@ -747,11 +761,6 @@ struct perf_event_context {
int nr_stat;
int nr_freq;
int rotate_disable;
- /*
- * Set when nr_events != nr_active, except tolerant to events not
- * necessary to be active due to scheduling constraints, such as cgroups.
- */
- int rotate_necessary;
atomic_t refcount;
struct task_struct *task;
@@ -1199,19 +1208,41 @@ extern int perf_cpu_time_max_percent_handler(struct ctl_table *table, int write,
int perf_event_max_stack_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos);
-static inline bool perf_paranoid_tracepoint_raw(void)
+/* Access to perf_event_open(2) syscall. */
+#define PERF_SECURITY_OPEN 0
+
+/* Finer grained perf_event_open(2) access control. */
+#define PERF_SECURITY_CPU 1
+#define PERF_SECURITY_KERNEL 2
+#define PERF_SECURITY_TRACEPOINT 3
+
+static inline int perf_is_paranoid(void)
{
return sysctl_perf_event_paranoid > -1;
}
-static inline bool perf_paranoid_cpu(void)
+static inline int perf_allow_kernel(struct perf_event_attr *attr)
{
- return sysctl_perf_event_paranoid > 0;
+ if (sysctl_perf_event_paranoid > 1 && !capable(CAP_SYS_ADMIN))
+ return -EACCES;
+
+ return security_perf_event_open(attr, PERF_SECURITY_KERNEL);
}
-static inline bool perf_paranoid_kernel(void)
+static inline int perf_allow_cpu(struct perf_event_attr *attr)
{
- return sysctl_perf_event_paranoid > 1;
+ if (sysctl_perf_event_paranoid > 0 && !capable(CAP_SYS_ADMIN))
+ return -EACCES;
+
+ return security_perf_event_open(attr, PERF_SECURITY_CPU);
+}
+
+static inline int perf_allow_tracepoint(struct perf_event_attr *attr)
+{
+ if (sysctl_perf_event_paranoid > -1 && !capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ return security_perf_event_open(attr, PERF_SECURITY_TRACEPOINT);
}
extern void perf_event_init(void);
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 42766e7..8b1371d 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -25,6 +25,7 @@
#include <linux/timer.h>
#include <linux/workqueue.h>
#include <linux/mod_devicetable.h>
+#include <linux/android_kabi.h>
#include <linux/atomic.h>
@@ -481,6 +482,11 @@ struct phy_device {
void (*phy_link_change)(struct phy_device *, bool up, bool do_carrier);
void (*adjust_link)(struct net_device *dev);
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
#define to_phy_device(d) container_of(to_mdio_device(d), \
struct phy_device, mdio)
@@ -660,6 +666,10 @@ struct phy_driver {
struct ethtool_tunable *tuna,
const void *data);
int (*set_loopback)(struct phy_device *dev, bool enable);
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+
};
#define to_phy_driver(d) container_of(to_mdio_common_driver(d), \
struct phy_driver, mdiodrv)
diff --git a/include/linux/pid.h b/include/linux/pid.h
index 14a9a39..a82d2f7 100644
--- a/include/linux/pid.h
+++ b/include/linux/pid.h
@@ -3,6 +3,7 @@
#define _LINUX_PID_H
#include <linux/rculist.h>
+#include <linux/wait.h>
enum pid_type
{
@@ -60,12 +61,16 @@ struct pid
unsigned int level;
/* lists of tasks that use this pid */
struct hlist_head tasks[PIDTYPE_MAX];
+ /* wait queue for pidfd notifications */
+ wait_queue_head_t wait_pidfd;
struct rcu_head rcu;
struct upid numbers[1];
};
extern struct pid init_struct_pid;
+extern const struct file_operations pidfd_fops;
+
static inline struct pid *get_pid(struct pid *pid)
{
if (pid)
diff --git a/include/linux/pm.h b/include/linux/pm.h
index e723b78..e573f95 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -591,6 +591,7 @@ struct dev_pm_info {
bool is_suspended:1; /* Ditto */
bool is_noirq_suspended:1;
bool is_late_suspended:1;
+ bool no_pm:1;
bool early_init:1; /* Owned by the PM core */
bool direct_complete:1; /* Owned by the PM core */
u32 driver_flags;
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
index 099b319..11dbffc 100644
--- a/include/linux/pm_opp.h
+++ b/include/linux/pm_opp.h
@@ -301,6 +301,7 @@ int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpuma
struct device_node *dev_pm_opp_of_get_opp_desc_node(struct device *dev);
struct dev_pm_opp *of_dev_pm_opp_find_required_opp(struct device *dev, struct device_node *np);
struct device_node *dev_pm_opp_get_of_node(struct dev_pm_opp *opp);
+int of_dev_pm_opp_get_cpu_power(unsigned long *mW, unsigned long *KHz, int cpu);
#else
static inline int dev_pm_opp_of_add_table(struct device *dev)
{
@@ -343,6 +344,10 @@ static inline struct device_node *dev_pm_opp_get_of_node(struct dev_pm_opp *opp)
{
return NULL;
}
+static inline int of_dev_pm_opp_get_cpu_power(unsigned long *mW, unsigned long *KHz, int cpu)
+{
+ return -ENOTSUPP;
+}
#endif
#endif /* __LINUX_OPP_H__ */
diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h
index 6ea1ae3..1d6f843 100644
--- a/include/linux/pm_qos.h
+++ b/include/linux/pm_qos.h
@@ -9,6 +9,8 @@
#include <linux/notifier.h>
#include <linux/device.h>
#include <linux/workqueue.h>
+#include <linux/cpumask.h>
+#include <linux/interrupt.h>
enum {
PM_QOS_RESERVED = 0,
@@ -44,7 +46,22 @@ enum pm_qos_flags_status {
#define PM_QOS_FLAG_NO_POWER_OFF (1 << 0)
+enum pm_qos_req_type {
+ PM_QOS_REQ_ALL_CORES = 0,
+ PM_QOS_REQ_AFFINE_CORES,
+#ifdef CONFIG_SMP
+ PM_QOS_REQ_AFFINE_IRQ,
+#endif
+};
+
struct pm_qos_request {
+ enum pm_qos_req_type type;
+ struct cpumask cpus_affine;
+#ifdef CONFIG_SMP
+ uint32_t irq;
+ /* Internal structure members */
+ struct irq_affinity_notify irq_notify;
+#endif
struct plist_node node;
int pm_qos_class;
struct delayed_work work; /* for pm_qos_update_request_timeout */
@@ -85,6 +102,7 @@ enum pm_qos_type {
struct pm_qos_constraints {
struct plist_head list;
s32 target_value; /* Do not change to 64 bit */
+ s32 target_per_cpu[NR_CPUS];
s32 default_value;
s32 no_constraint_value;
enum pm_qos_type type;
@@ -118,7 +136,8 @@ static inline int dev_pm_qos_request_active(struct dev_pm_qos_request *req)
}
int pm_qos_update_target(struct pm_qos_constraints *c, struct plist_node *node,
- enum pm_qos_req_action action, int value);
+ enum pm_qos_req_action action, int value,
+ bool dev_req);
bool pm_qos_update_flags(struct pm_qos_flags *pqf,
struct pm_qos_flags_request *req,
enum pm_qos_req_action action, s32 val);
@@ -131,6 +150,8 @@ void pm_qos_update_request_timeout(struct pm_qos_request *req,
void pm_qos_remove_request(struct pm_qos_request *req);
int pm_qos_request(int pm_qos_class);
+int pm_qos_request_for_cpu(int pm_qos_class, int cpu);
+int pm_qos_request_for_cpumask(int pm_qos_class, struct cpumask *mask);
int pm_qos_add_notifier(int pm_qos_class, struct notifier_block *notifier);
int pm_qos_remove_notifier(int pm_qos_class, struct notifier_block *notifier);
int pm_qos_request_active(struct pm_qos_request *req);
diff --git a/include/linux/pm_wakeup.h b/include/linux/pm_wakeup.h
index 4238dde..4e5f86e 100644
--- a/include/linux/pm_wakeup.h
+++ b/include/linux/pm_wakeup.h
@@ -34,6 +34,7 @@ struct wake_irq;
* struct wakeup_source - Representation of wakeup sources
*
* @name: Name of the wakeup source
+ * @id: Wakeup source id
* @entry: Wakeup source list entry
* @lock: Wakeup source lock
* @wakeirq: Optional device specific wakeirq
@@ -48,11 +49,13 @@ struct wake_irq;
* @relax_count: Number of times the wakeup source was deactivated.
* @expire_count: Number of times the wakeup source's timeout has expired.
* @wakeup_count: Number of times the wakeup source might abort suspend.
+ * @dev: Struct device for sysfs statistics about the wakeup source.
* @active: Status of the wakeup source.
* @has_timeout: The wakeup source has been activated with a timeout.
*/
struct wakeup_source {
const char *name;
+ int id;
struct list_head entry;
spinlock_t lock;
struct wake_irq *wakeirq;
@@ -68,6 +71,7 @@ struct wakeup_source {
unsigned long relax_count;
unsigned long expire_count;
unsigned long wakeup_count;
+ struct device *dev;
bool active:1;
bool autosleep_enabled:1;
};
@@ -94,13 +98,12 @@ static inline void device_set_wakeup_path(struct device *dev)
}
/* drivers/base/power/wakeup.c */
-extern void wakeup_source_prepare(struct wakeup_source *ws, const char *name);
extern struct wakeup_source *wakeup_source_create(const char *name);
-extern void wakeup_source_drop(struct wakeup_source *ws);
extern void wakeup_source_destroy(struct wakeup_source *ws);
extern void wakeup_source_add(struct wakeup_source *ws);
extern void wakeup_source_remove(struct wakeup_source *ws);
-extern struct wakeup_source *wakeup_source_register(const char *name);
+extern struct wakeup_source *wakeup_source_register(struct device *dev,
+ const char *name);
extern void wakeup_source_unregister(struct wakeup_source *ws);
extern int device_wakeup_enable(struct device *dev);
extern int device_wakeup_disable(struct device *dev);
@@ -126,23 +129,19 @@ static inline bool device_can_wakeup(struct device *dev)
return dev->power.can_wakeup;
}
-static inline void wakeup_source_prepare(struct wakeup_source *ws,
- const char *name) {}
-
static inline struct wakeup_source *wakeup_source_create(const char *name)
{
return NULL;
}
-static inline void wakeup_source_drop(struct wakeup_source *ws) {}
-
static inline void wakeup_source_destroy(struct wakeup_source *ws) {}
static inline void wakeup_source_add(struct wakeup_source *ws) {}
static inline void wakeup_source_remove(struct wakeup_source *ws) {}
-static inline struct wakeup_source *wakeup_source_register(const char *name)
+static inline struct wakeup_source *wakeup_source_register(struct device *dev,
+ const char *name)
{
return NULL;
}
@@ -197,19 +196,6 @@ static inline void pm_wakeup_dev_event(struct device *dev, unsigned int msec,
#endif /* !CONFIG_PM_SLEEP */
-static inline void wakeup_source_init(struct wakeup_source *ws,
- const char *name)
-{
- wakeup_source_prepare(ws, name);
- wakeup_source_add(ws);
-}
-
-static inline void wakeup_source_trash(struct wakeup_source *ws)
-{
- wakeup_source_remove(ws);
- wakeup_source_drop(ws);
-}
-
static inline void __pm_wakeup_event(struct wakeup_source *ws, unsigned int msec)
{
return pm_wakeup_ws_event(ws, msec, false);
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index f807691..a19b2fc 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -18,6 +18,7 @@
#include <linux/leds.h>
#include <linux/spinlock.h>
#include <linux/notifier.h>
+#include <linux/types.h>
/*
* All voltages, currents, charges, energies, time and temperatures in uV,
@@ -45,6 +46,7 @@ enum {
POWER_SUPPLY_CHARGE_TYPE_NONE,
POWER_SUPPLY_CHARGE_TYPE_TRICKLE,
POWER_SUPPLY_CHARGE_TYPE_FAST,
+ POWER_SUPPLY_CHARGE_TYPE_TAPER,
};
enum {
@@ -57,6 +59,10 @@ enum {
POWER_SUPPLY_HEALTH_COLD,
POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE,
POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE,
+ POWER_SUPPLY_HEALTH_OVERCURRENT,
+ POWER_SUPPLY_HEALTH_WARM,
+ POWER_SUPPLY_HEALTH_COOL,
+ POWER_SUPPLY_HEALTH_HOT,
};
enum {
@@ -84,6 +90,84 @@ enum {
POWER_SUPPLY_SCOPE_DEVICE,
};
+enum {
+ POWER_SUPPLY_DP_DM_UNKNOWN = 0,
+ POWER_SUPPLY_DP_DM_PREPARE = 1,
+ POWER_SUPPLY_DP_DM_UNPREPARE = 2,
+ POWER_SUPPLY_DP_DM_CONFIRMED_HVDCP3 = 3,
+ POWER_SUPPLY_DP_DM_DP_PULSE = 4,
+ POWER_SUPPLY_DP_DM_DM_PULSE = 5,
+ POWER_SUPPLY_DP_DM_DP0P6_DMF = 6,
+ POWER_SUPPLY_DP_DM_DP0P6_DM3P3 = 7,
+ POWER_SUPPLY_DP_DM_DPF_DMF = 8,
+ POWER_SUPPLY_DP_DM_DPR_DMR = 9,
+ POWER_SUPPLY_DP_DM_HVDCP3_SUPPORTED = 10,
+ POWER_SUPPLY_DP_DM_ICL_DOWN = 11,
+ POWER_SUPPLY_DP_DM_ICL_UP = 12,
+ POWER_SUPPLY_DP_DM_FORCE_5V = 13,
+ POWER_SUPPLY_DP_DM_FORCE_9V = 14,
+ POWER_SUPPLY_DP_DM_FORCE_12V = 15,
+ POWER_SUPPLY_DP_DM_CONFIRMED_HVDCP3P5 = 16,
+};
+
+enum {
+ POWER_SUPPLY_PL_NONE,
+ POWER_SUPPLY_PL_USBIN_USBIN,
+ POWER_SUPPLY_PL_USBIN_USBIN_EXT,
+ POWER_SUPPLY_PL_USBMID_USBMID,
+};
+
+enum {
+ POWER_SUPPLY_CHARGER_SEC_NONE = 0,
+ POWER_SUPPLY_CHARGER_SEC_CP,
+ POWER_SUPPLY_CHARGER_SEC_PL,
+ POWER_SUPPLY_CHARGER_SEC_CP_PL,
+};
+
+enum {
+ POWER_SUPPLY_CP_NONE = 0,
+ POWER_SUPPLY_CP_HVDCP3,
+ POWER_SUPPLY_CP_HVDCP3P5,
+ POWER_SUPPLY_CP_PPS,
+ POWER_SUPPLY_CP_WIRELESS,
+};
+
+enum {
+ POWER_SUPPLY_CONNECTOR_TYPEC,
+ POWER_SUPPLY_CONNECTOR_MICRO_USB,
+};
+
+enum {
+ POWER_SUPPLY_PL_STACKED_BATFET,
+ POWER_SUPPLY_PL_NON_STACKED_BATFET,
+};
+
+/* Parallel output connection topology */
+enum {
+ POWER_SUPPLY_PL_OUTPUT_NONE,
+ POWER_SUPPLY_PL_OUTPUT_VPH,
+ POWER_SUPPLY_PL_OUTPUT_VBAT,
+};
+
+enum {
+ POWER_SUPPLY_PD_INACTIVE = 0,
+ POWER_SUPPLY_PD_ACTIVE,
+ POWER_SUPPLY_PD_PPS_ACTIVE,
+};
+
+enum {
+ POWER_SUPPLY_QC_CTM_DISABLE = BIT(0),
+ POWER_SUPPLY_QC_THERMAL_BALANCE_DISABLE = BIT(1),
+ POWER_SUPPLY_QC_INOV_THERMAL_DISABLE = BIT(2),
+};
+
+enum {
+ POWER_SUPPLY_ALIGN_CHECKING = 0,
+ POWER_SUPPLY_ALIGN_MOVE,
+ POWER_SUPPLY_ALIGN_CENTERED,
+ POWER_SUPPLY_ALIGN_ERROR,
+};
+
enum power_supply_property {
/* Properties of type `int' */
POWER_SUPPLY_PROP_STATUS = 0,
@@ -150,9 +234,178 @@ enum power_supply_property {
POWER_SUPPLY_PROP_PRECHARGE_CURRENT,
POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT,
POWER_SUPPLY_PROP_CALIBRATE,
+ /* Local extensions */
+ POWER_SUPPLY_PROP_USB_HC,
+ POWER_SUPPLY_PROP_USB_OTG,
+ POWER_SUPPLY_PROP_CHARGE_ENABLED,
+ POWER_SUPPLY_PROP_SET_SHIP_MODE,
+ POWER_SUPPLY_PROP_REAL_TYPE,
+ POWER_SUPPLY_PROP_CHARGE_NOW_RAW,
+ POWER_SUPPLY_PROP_CHARGE_NOW_ERROR,
+ POWER_SUPPLY_PROP_CAPACITY_RAW,
+ POWER_SUPPLY_PROP_BATTERY_CHARGING_ENABLED,
+ POWER_SUPPLY_PROP_CHARGING_ENABLED,
+ POWER_SUPPLY_PROP_STEP_CHARGING_ENABLED,
+ POWER_SUPPLY_PROP_STEP_CHARGING_STEP,
+ POWER_SUPPLY_PROP_PIN_ENABLED,
+ POWER_SUPPLY_PROP_INPUT_SUSPEND,
+ POWER_SUPPLY_PROP_INPUT_VOLTAGE_REGULATION,
+ POWER_SUPPLY_PROP_INPUT_CURRENT_MAX,
+ POWER_SUPPLY_PROP_INPUT_CURRENT_TRIM,
+ POWER_SUPPLY_PROP_INPUT_CURRENT_SETTLED,
+ POWER_SUPPLY_PROP_INPUT_VOLTAGE_SETTLED,
+ POWER_SUPPLY_PROP_VCHG_LOOP_DBC_BYPASS,
+ POWER_SUPPLY_PROP_CHARGE_COUNTER_SHADOW,
+ POWER_SUPPLY_PROP_HI_POWER,
+ POWER_SUPPLY_PROP_LOW_POWER,
+ POWER_SUPPLY_PROP_COOL_TEMP,
+ POWER_SUPPLY_PROP_WARM_TEMP,
+ POWER_SUPPLY_PROP_COLD_TEMP,
+ POWER_SUPPLY_PROP_HOT_TEMP,
+ POWER_SUPPLY_PROP_SYSTEM_TEMP_LEVEL,
+ POWER_SUPPLY_PROP_RESISTANCE,
+ POWER_SUPPLY_PROP_RESISTANCE_CAPACITIVE,
+ POWER_SUPPLY_PROP_RESISTANCE_ID, /* in Ohms */
+ POWER_SUPPLY_PROP_RESISTANCE_NOW,
+ POWER_SUPPLY_PROP_FLASH_CURRENT_MAX,
+ POWER_SUPPLY_PROP_UPDATE_NOW,
+ POWER_SUPPLY_PROP_ESR_COUNT,
+ POWER_SUPPLY_PROP_BUCK_FREQ,
+ POWER_SUPPLY_PROP_BOOST_CURRENT,
+ POWER_SUPPLY_PROP_SAFETY_TIMER_ENABLE,
+ POWER_SUPPLY_PROP_CHARGE_DONE,
+ POWER_SUPPLY_PROP_FLASH_ACTIVE,
+ POWER_SUPPLY_PROP_FLASH_TRIGGER,
+ POWER_SUPPLY_PROP_FORCE_TLIM,
+ POWER_SUPPLY_PROP_DP_DM,
+ POWER_SUPPLY_PROP_INPUT_CURRENT_LIMITED,
+ POWER_SUPPLY_PROP_INPUT_CURRENT_NOW,
+ POWER_SUPPLY_PROP_CHARGE_QNOVO_ENABLE,
+ POWER_SUPPLY_PROP_CURRENT_QNOVO,
+ POWER_SUPPLY_PROP_VOLTAGE_QNOVO,
+ POWER_SUPPLY_PROP_RERUN_AICL,
+ POWER_SUPPLY_PROP_CYCLE_COUNT_ID,
+ POWER_SUPPLY_PROP_SAFETY_TIMER_EXPIRED,
+ POWER_SUPPLY_PROP_RESTRICTED_CHARGING,
+ POWER_SUPPLY_PROP_CURRENT_CAPABILITY,
+ POWER_SUPPLY_PROP_TYPEC_MODE,
+ POWER_SUPPLY_PROP_TYPEC_CC_ORIENTATION, /* 0: N/C, 1: CC1, 2: CC2 */
+ POWER_SUPPLY_PROP_TYPEC_POWER_ROLE,
+ POWER_SUPPLY_PROP_TYPEC_SRC_RP,
+ POWER_SUPPLY_PROP_PD_ALLOWED,
+ POWER_SUPPLY_PROP_PD_ACTIVE,
+ POWER_SUPPLY_PROP_PD_IN_HARD_RESET,
+ POWER_SUPPLY_PROP_PD_CURRENT_MAX,
+ POWER_SUPPLY_PROP_PD_USB_SUSPEND_SUPPORTED,
+ POWER_SUPPLY_PROP_CHARGER_TEMP,
+ POWER_SUPPLY_PROP_CHARGER_TEMP_MAX,
+ POWER_SUPPLY_PROP_PARALLEL_DISABLE,
+ POWER_SUPPLY_PROP_PE_START,
+ POWER_SUPPLY_PROP_SOC_REPORTING_READY,
+ POWER_SUPPLY_PROP_DEBUG_BATTERY,
+ POWER_SUPPLY_PROP_FCC_DELTA,
+ POWER_SUPPLY_PROP_ICL_REDUCTION,
+ POWER_SUPPLY_PROP_PARALLEL_MODE,
+ POWER_SUPPLY_PROP_DIE_HEALTH,
+ POWER_SUPPLY_PROP_CONNECTOR_HEALTH,
+ POWER_SUPPLY_PROP_CTM_CURRENT_MAX,
+ POWER_SUPPLY_PROP_HW_CURRENT_MAX,
+ POWER_SUPPLY_PROP_PR_SWAP,
+ POWER_SUPPLY_PROP_CC_STEP,
+ POWER_SUPPLY_PROP_CC_STEP_SEL,
+ POWER_SUPPLY_PROP_SW_JEITA_ENABLED,
+ POWER_SUPPLY_PROP_PD_VOLTAGE_MAX,
+ POWER_SUPPLY_PROP_PD_VOLTAGE_MIN,
+ POWER_SUPPLY_PROP_SDP_CURRENT_MAX,
+ POWER_SUPPLY_PROP_CONNECTOR_TYPE,
+ POWER_SUPPLY_PROP_PARALLEL_BATFET_MODE,
+ POWER_SUPPLY_PROP_PARALLEL_FCC_MAX,
+ POWER_SUPPLY_PROP_MIN_ICL,
+ POWER_SUPPLY_PROP_MOISTURE_DETECTED,
+ POWER_SUPPLY_PROP_BATT_PROFILE_VERSION,
+ POWER_SUPPLY_PROP_BATT_FULL_CURRENT,
+ POWER_SUPPLY_PROP_RECHARGE_SOC,
+ POWER_SUPPLY_PROP_HVDCP_OPTI_ALLOWED,
+ POWER_SUPPLY_PROP_SMB_EN_MODE,
+ POWER_SUPPLY_PROP_SMB_EN_REASON,
+ POWER_SUPPLY_PROP_ESR_ACTUAL,
+ POWER_SUPPLY_PROP_ESR_NOMINAL,
+ POWER_SUPPLY_PROP_SOH,
+ POWER_SUPPLY_PROP_CLEAR_SOH,
+ POWER_SUPPLY_PROP_FORCE_RECHARGE,
+ POWER_SUPPLY_PROP_FCC_STEPPER_ENABLE,
+ POWER_SUPPLY_PROP_TOGGLE_STAT,
+ POWER_SUPPLY_PROP_MAIN_FCC_MAX,
+ POWER_SUPPLY_PROP_FG_RESET,
+ POWER_SUPPLY_PROP_QC_OPTI_DISABLE,
+ POWER_SUPPLY_PROP_CC_SOC,
+ POWER_SUPPLY_PROP_BATT_AGE_LEVEL,
+ POWER_SUPPLY_PROP_SCALE_MODE_EN,
+ POWER_SUPPLY_PROP_VOLTAGE_VPH,
+ POWER_SUPPLY_PROP_CHIP_VERSION,
+ POWER_SUPPLY_PROP_THERM_ICL_LIMIT,
+ POWER_SUPPLY_PROP_DC_RESET,
+ POWER_SUPPLY_PROP_VOLTAGE_MAX_LIMIT,
+ POWER_SUPPLY_PROP_REAL_CAPACITY,
+ POWER_SUPPLY_PROP_FORCE_MAIN_ICL,
+ POWER_SUPPLY_PROP_FORCE_MAIN_FCC,
+ POWER_SUPPLY_PROP_COMP_CLAMP_LEVEL,
+ POWER_SUPPLY_PROP_ADAPTER_CC_MODE,
+ POWER_SUPPLY_PROP_SKIN_HEALTH,
+ POWER_SUPPLY_PROP_CHARGE_DISABLE,
+ POWER_SUPPLY_PROP_ADAPTER_DETAILS,
+ POWER_SUPPLY_PROP_DEAD_BATTERY,
+ POWER_SUPPLY_PROP_VOLTAGE_FIFO,
+ POWER_SUPPLY_PROP_CC_UAH,
+ POWER_SUPPLY_PROP_OPERATING_FREQ,
+ POWER_SUPPLY_PROP_AICL_DELAY,
+ POWER_SUPPLY_PROP_AICL_ICL,
+ POWER_SUPPLY_PROP_RTX,
+ POWER_SUPPLY_PROP_CUTOFF_SOC,
+ POWER_SUPPLY_PROP_SYS_SOC,
+ POWER_SUPPLY_PROP_BATT_SOC,
+ /* Capacity Estimation */
+ POWER_SUPPLY_PROP_BATT_CE_CTRL,
+ POWER_SUPPLY_PROP_CHARGE_FULL_ESTIMATE,
+ /* Resistance Estimaton */
+ POWER_SUPPLY_PROP_RESISTANCE_AVG,
+ POWER_SUPPLY_PROP_RES_FILTER_COUNT,
+ POWER_SUPPLY_PROP_AICL_DONE,
+ POWER_SUPPLY_PROP_VOLTAGE_STEP,
+ POWER_SUPPLY_PROP_OTG_FASTROLESWAP,
+ POWER_SUPPLY_PROP_APSD_RERUN,
+ POWER_SUPPLY_PROP_APSD_TIMEOUT,
+ /* Charge pump properties */
+ POWER_SUPPLY_PROP_CP_STATUS1,
+ POWER_SUPPLY_PROP_CP_STATUS2,
+ POWER_SUPPLY_PROP_CP_ENABLE,
+ POWER_SUPPLY_PROP_CP_SWITCHER_EN,
+ POWER_SUPPLY_PROP_CP_DIE_TEMP,
+ POWER_SUPPLY_PROP_CP_ISNS,
+ POWER_SUPPLY_PROP_CP_ISNS_SLAVE,
+ POWER_SUPPLY_PROP_CP_TOGGLE_SWITCHER,
+ POWER_SUPPLY_PROP_CP_IRQ_STATUS,
+ POWER_SUPPLY_PROP_CP_ILIM,
+ POWER_SUPPLY_PROP_IRQ_STATUS,
+ POWER_SUPPLY_PROP_PARALLEL_OUTPUT_MODE,
+ POWER_SUPPLY_PROP_ALIGNMENT,
+ POWER_SUPPLY_PROP_MOISTURE_DETECTION_ENABLE,
+ POWER_SUPPLY_PROP_CC_TOGGLE_ENABLE,
+ POWER_SUPPLY_PROP_FG_TYPE,
+ POWER_SUPPLY_PROP_CHARGER_STATUS,
+ /* Local extensions of type int64_t */
+ POWER_SUPPLY_PROP_CHARGE_COUNTER_EXT,
+ POWER_SUPPLY_PROP_CHARGE_CHARGER_STATE,
/* Properties of type `const char *' */
POWER_SUPPLY_PROP_MODEL_NAME,
+ POWER_SUPPLY_PROP_PTMC_ID,
POWER_SUPPLY_PROP_MANUFACTURER,
+ POWER_SUPPLY_PROP_BATTERY_TYPE,
+ POWER_SUPPLY_PROP_CYCLE_COUNTS,
+ /*
+ * Add local extensions for properties with string values between
+ * MODEL_NAME and SERIAL_NUMBER. Don't add below SERIAL_NUMBER.
+ */
POWER_SUPPLY_PROP_SERIAL_NUMBER,
};
@@ -169,6 +422,17 @@ enum power_supply_type {
POWER_SUPPLY_TYPE_USB_PD, /* Power Delivery Port */
POWER_SUPPLY_TYPE_USB_PD_DRP, /* PD Dual Role Port */
POWER_SUPPLY_TYPE_APPLE_BRICK_ID, /* Apple Charging Method */
+ POWER_SUPPLY_TYPE_USB_HVDCP, /* High Voltage DCP */
+ POWER_SUPPLY_TYPE_USB_HVDCP_3, /* Efficient High Voltage DCP */
+ POWER_SUPPLY_TYPE_USB_HVDCP_3P5, /* Efficient High Voltage DCP */
+ POWER_SUPPLY_TYPE_WIRELESS, /* Accessory Charger Adapters */
+ POWER_SUPPLY_TYPE_USB_FLOAT, /* Floating charger */
+ POWER_SUPPLY_TYPE_BMS, /* Battery Monitor System */
+ POWER_SUPPLY_TYPE_PARALLEL, /* Parallel Path */
+ POWER_SUPPLY_TYPE_MAIN, /* Main Path */
+ POWER_SUPPLY_TYPE_UFP, /* Type-C UFP */
+ POWER_SUPPLY_TYPE_DFP, /* Type-C DFP */
+ POWER_SUPPLY_TYPE_CHARGE_PUMP, /* Charge Pump */
};
enum power_supply_usb_type {
@@ -184,6 +448,45 @@ enum power_supply_usb_type {
POWER_SUPPLY_USB_TYPE_APPLE_BRICK_ID, /* Apple Charging Method */
};
+/* Indicates USB Type-C CC connection status */
+enum power_supply_typec_mode {
+ POWER_SUPPLY_TYPEC_NONE,
+
+ /* Acting as source */
+ POWER_SUPPLY_TYPEC_SINK, /* Rd only */
+ POWER_SUPPLY_TYPEC_SINK_POWERED_CABLE, /* Rd/Ra */
+ POWER_SUPPLY_TYPEC_SINK_DEBUG_ACCESSORY,/* Rd/Rd */
+ POWER_SUPPLY_TYPEC_SINK_AUDIO_ADAPTER, /* Ra/Ra */
+ POWER_SUPPLY_TYPEC_POWERED_CABLE_ONLY, /* Ra only */
+
+ /* Acting as sink */
+ POWER_SUPPLY_TYPEC_SOURCE_DEFAULT, /* Rp default */
+ POWER_SUPPLY_TYPEC_SOURCE_MEDIUM, /* Rp 1.5A */
+ POWER_SUPPLY_TYPEC_SOURCE_HIGH, /* Rp 3A */
+ POWER_SUPPLY_TYPEC_DAM_DEFAULT, /* Rp-1.5A/Rp-3A */
+ POWER_SUPPLY_TYPEC_DAM_MEDIUM, /* Rp-Default/Rp-1.5A */
+ POWER_SUPPLY_TYPEC_DAM_HIGH, /* Rp-Default/Rp-3A */
+
+ /* Non Compliant */
+ POWER_SUPPLY_TYPEC_NON_COMPLIANT,
+ POWER_SUPPLY_TYPEC_RP_STD_STD, /* Rp-Default/Rp-Default */
+ POWER_SUPPLY_TYPEC_RP_MED_MED, /* Rp-1.5A/Rp-1.5A */
+ POWER_SUPPLY_TYPEC_RP_HIGH_HIGH, /* Rp-3A/Rp-3A */
+};
+
+enum power_supply_typec_src_rp {
+ POWER_SUPPLY_TYPEC_SRC_RP_STD,
+ POWER_SUPPLY_TYPEC_SRC_RP_1P5A,
+ POWER_SUPPLY_TYPEC_SRC_RP_3A
+};
+
+enum power_supply_typec_power_role {
+ POWER_SUPPLY_TYPEC_PR_NONE, /* CC lines in high-Z */
+ POWER_SUPPLY_TYPEC_PR_DUAL,
+ POWER_SUPPLY_TYPEC_PR_SINK,
+ POWER_SUPPLY_TYPEC_PR_SOURCE,
+};
+
enum power_supply_notifier_events {
PSY_EVENT_PROP_CHANGED,
};
@@ -191,6 +494,7 @@ enum power_supply_notifier_events {
union power_supply_propval {
int intval;
const char *strval;
+ int64_t int64val;
};
struct device_node;
diff --git a/include/linux/printk.h b/include/linux/printk.h
index 6dd867e..d3195ea 100644
--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -9,6 +9,7 @@
#include <linux/cache.h>
extern const char linux_banner[];
+extern const char *linux_banner_ptr;
extern const char linux_proc_banner[];
#define PRINTK_MAX_SINGLE_HEADER_LEN 2
diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
index 5141657..c609d99 100644
--- a/include/linux/proc_fs.h
+++ b/include/linux/proc_fs.h
@@ -74,6 +74,7 @@ struct proc_dir_entry *proc_create_net_single_write(const char *name, umode_t mo
int (*show)(struct seq_file *, void *),
proc_write_t write,
void *data);
+extern struct pid *tgid_pidfd_to_pid(const struct file *file);
#else /* CONFIG_PROC_FS */
@@ -120,8 +121,19 @@ static inline int remove_proc_subtree(const char *name, struct proc_dir_entry *p
#define proc_create_net(name, mode, parent, state_size, ops) ({NULL;})
#define proc_create_net_single(name, mode, parent, show, data) ({NULL;})
+static inline struct pid *tgid_pidfd_to_pid(const struct file *file)
+{
+ return ERR_PTR(-EBADF);
+}
+
#endif /* CONFIG_PROC_FS */
+#ifdef CONFIG_PROC_UID
+extern void proc_register_uid(kuid_t uid);
+#else
+static inline void proc_register_uid(kuid_t uid) {}
+#endif
+
struct net;
static inline struct proc_dir_entry *proc_net_mkdir(
diff --git a/include/linux/property.h b/include/linux/property.h
index 1a12364..df388be 100644
--- a/include/linux/property.h
+++ b/include/linux/property.h
@@ -143,6 +143,26 @@ static inline int device_property_read_u64(struct device *dev,
return device_property_read_u64_array(dev, propname, val, 1);
}
+static inline int device_property_count_u8(struct device *dev, const char *propname)
+{
+ return device_property_read_u8_array(dev, propname, NULL, 0);
+}
+
+static inline int device_property_count_u16(struct device *dev, const char *propname)
+{
+ return device_property_read_u16_array(dev, propname, NULL, 0);
+}
+
+static inline int device_property_count_u32(struct device *dev, const char *propname)
+{
+ return device_property_read_u32_array(dev, propname, NULL, 0);
+}
+
+static inline int device_property_count_u64(struct device *dev, const char *propname)
+{
+ return device_property_read_u64_array(dev, propname, NULL, 0);
+}
+
static inline bool fwnode_property_read_bool(const struct fwnode_handle *fwnode,
const char *propname)
{
@@ -173,6 +193,30 @@ static inline int fwnode_property_read_u64(const struct fwnode_handle *fwnode,
return fwnode_property_read_u64_array(fwnode, propname, val, 1);
}
+static inline int fwnode_property_count_u8(const struct fwnode_handle *fwnode,
+ const char *propname)
+{
+ return fwnode_property_read_u8_array(fwnode, propname, NULL, 0);
+}
+
+static inline int fwnode_property_count_u16(const struct fwnode_handle *fwnode,
+ const char *propname)
+{
+ return fwnode_property_read_u16_array(fwnode, propname, NULL, 0);
+}
+
+static inline int fwnode_property_count_u32(const struct fwnode_handle *fwnode,
+ const char *propname)
+{
+ return fwnode_property_read_u32_array(fwnode, propname, NULL, 0);
+}
+
+static inline int fwnode_property_count_u64(const struct fwnode_handle *fwnode,
+ const char *propname)
+{
+ return fwnode_property_read_u64_array(fwnode, propname, NULL, 0);
+}
+
/**
* struct property_entry - "Built-in" device property representation.
* @name: Name of the property.
diff --git a/include/linux/psi.h b/include/linux/psi.h
new file mode 100644
index 0000000..af892c2
--- /dev/null
+++ b/include/linux/psi.h
@@ -0,0 +1,62 @@
+#ifndef _LINUX_PSI_H
+#define _LINUX_PSI_H
+
+#include <linux/jump_label.h>
+#include <linux/psi_types.h>
+#include <linux/sched.h>
+#include <linux/poll.h>
+
+struct seq_file;
+struct css_set;
+
+#ifdef CONFIG_PSI
+
+extern struct static_key_false psi_disabled;
+
+void psi_init(void);
+
+void psi_task_change(struct task_struct *task, int clear, int set);
+
+void psi_memstall_tick(struct task_struct *task, int cpu);
+void psi_memstall_enter(unsigned long *flags);
+void psi_memstall_leave(unsigned long *flags);
+
+int psi_show(struct seq_file *s, struct psi_group *group, enum psi_res res);
+
+#ifdef CONFIG_CGROUPS
+int psi_cgroup_alloc(struct cgroup *cgrp);
+void psi_cgroup_free(struct cgroup *cgrp);
+void cgroup_move_task(struct task_struct *p, struct css_set *to);
+
+struct psi_trigger *psi_trigger_create(struct psi_group *group,
+ char *buf, size_t nbytes, enum psi_res res);
+void psi_trigger_replace(void **trigger_ptr, struct psi_trigger *t);
+
+__poll_t psi_trigger_poll(void **trigger_ptr, struct file *file,
+ poll_table *wait);
+#endif
+
+#else /* CONFIG_PSI */
+
+static inline void psi_init(void) {}
+
+static inline void psi_memstall_enter(unsigned long *flags) {}
+static inline void psi_memstall_leave(unsigned long *flags) {}
+
+#ifdef CONFIG_CGROUPS
+static inline int psi_cgroup_alloc(struct cgroup *cgrp)
+{
+ return 0;
+}
+static inline void psi_cgroup_free(struct cgroup *cgrp)
+{
+}
+static inline void cgroup_move_task(struct task_struct *p, struct css_set *to)
+{
+ rcu_assign_pointer(p->cgroups, to);
+}
+#endif
+
+#endif /* CONFIG_PSI */
+
+#endif /* _LINUX_PSI_H */
diff --git a/include/linux/psi_types.h b/include/linux/psi_types.h
new file mode 100644
index 0000000..07aaf9b
--- /dev/null
+++ b/include/linux/psi_types.h
@@ -0,0 +1,173 @@
+#ifndef _LINUX_PSI_TYPES_H
+#define _LINUX_PSI_TYPES_H
+
+#include <linux/kthread.h>
+#include <linux/seqlock.h>
+#include <linux/types.h>
+#include <linux/kref.h>
+#include <linux/wait.h>
+
+#ifdef CONFIG_PSI
+
+/* Tracked task states */
+enum psi_task_count {
+ NR_IOWAIT,
+ NR_MEMSTALL,
+ NR_RUNNING,
+ NR_PSI_TASK_COUNTS = 3,
+};
+
+/* Task state bitmasks */
+#define TSK_IOWAIT (1 << NR_IOWAIT)
+#define TSK_MEMSTALL (1 << NR_MEMSTALL)
+#define TSK_RUNNING (1 << NR_RUNNING)
+
+/* Resources that workloads could be stalled on */
+enum psi_res {
+ PSI_IO,
+ PSI_MEM,
+ PSI_CPU,
+ NR_PSI_RESOURCES = 3,
+};
+
+/*
+ * Pressure states for each resource:
+ *
+ * SOME: Stalled tasks & working tasks
+ * FULL: Stalled tasks & no working tasks
+ */
+enum psi_states {
+ PSI_IO_SOME,
+ PSI_IO_FULL,
+ PSI_MEM_SOME,
+ PSI_MEM_FULL,
+ PSI_CPU_SOME,
+ /* Only per-CPU, to weigh the CPU in the global average: */
+ PSI_NONIDLE,
+ NR_PSI_STATES = 6,
+};
+
+enum psi_aggregators {
+ PSI_AVGS = 0,
+ PSI_POLL,
+ NR_PSI_AGGREGATORS,
+};
+
+struct psi_group_cpu {
+ /* 1st cacheline updated by the scheduler */
+
+ /* Aggregator needs to know of concurrent changes */
+ seqcount_t seq ____cacheline_aligned_in_smp;
+
+ /* States of the tasks belonging to this group */
+ unsigned int tasks[NR_PSI_TASK_COUNTS];
+
+ /* Aggregate pressure state derived from the tasks */
+ u32 state_mask;
+
+ /* Period time sampling buckets for each state of interest (ns) */
+ u32 times[NR_PSI_STATES];
+
+ /* Time of last task change in this group (rq_clock) */
+ u64 state_start;
+
+ /* 2nd cacheline updated by the aggregator */
+
+ /* Delta detection against the sampling buckets */
+ u32 times_prev[NR_PSI_AGGREGATORS][NR_PSI_STATES]
+ ____cacheline_aligned_in_smp;
+};
+
+/* PSI growth tracking window */
+struct psi_window {
+ /* Window size in ns */
+ u64 size;
+
+ /* Start time of the current window in ns */
+ u64 start_time;
+
+ /* Value at the start of the window */
+ u64 start_value;
+
+ /* Value growth in the previous window */
+ u64 prev_growth;
+};
+
+struct psi_trigger {
+ /* PSI state being monitored by the trigger */
+ enum psi_states state;
+
+ /* User-spacified threshold in ns */
+ u64 threshold;
+
+ /* List node inside triggers list */
+ struct list_head node;
+
+ /* Backpointer needed during trigger destruction */
+ struct psi_group *group;
+
+ /* Wait queue for polling */
+ wait_queue_head_t event_wait;
+
+ /* Pending event flag */
+ int event;
+
+ /* Tracking window */
+ struct psi_window win;
+
+ /*
+ * Time last event was generated. Used for rate-limiting
+ * events to one per window
+ */
+ u64 last_event_time;
+
+ /* Refcounting to prevent premature destruction */
+ struct kref refcount;
+};
+
+struct psi_group {
+ /* Protects data used by the aggregator */
+ struct mutex avgs_lock;
+
+ /* Per-cpu task state & time tracking */
+ struct psi_group_cpu __percpu *pcpu;
+
+ /* Running pressure averages */
+ u64 avg_total[NR_PSI_STATES - 1];
+ u64 avg_last_update;
+ u64 avg_next_update;
+
+ /* Aggregator work control */
+ struct delayed_work avgs_work;
+
+ /* Total stall times and sampled pressure averages */
+ u64 total[NR_PSI_AGGREGATORS][NR_PSI_STATES - 1];
+ unsigned long avg[NR_PSI_STATES - 1][3];
+
+ /* Monitor work control */
+ atomic_t poll_scheduled;
+ struct kthread_worker __rcu *poll_kworker;
+ struct kthread_delayed_work poll_work;
+
+ /* Protects data used by the monitor */
+ struct mutex trigger_lock;
+
+ /* Configured polling triggers */
+ struct list_head triggers;
+ u32 nr_triggers[NR_PSI_STATES - 1];
+ u32 poll_states;
+ u64 poll_min_period;
+
+ /* Total stall times at the start of monitor activation */
+ u64 polling_total[NR_PSI_STATES - 1];
+ u64 polling_next_update;
+ u64 polling_until;
+};
+
+#else /* CONFIG_PSI */
+
+struct psi_group { };
+
+#endif /* CONFIG_PSI */
+
+#endif /* _LINUX_PSI_TYPES_H */
diff --git a/include/linux/pwm.h b/include/linux/pwm.h
index bd7d611..91323a4 100644
--- a/include/linux/pwm.h
+++ b/include/linux/pwm.h
@@ -39,7 +39,7 @@ enum pwm_polarity {
* current PWM hardware state.
*/
struct pwm_args {
- unsigned int period;
+ u64 period;
enum pwm_polarity polarity;
};
@@ -48,6 +48,29 @@ enum {
PWMF_EXPORTED = 1 << 1,
};
+/**
+ * enum pwm_output_type - output type of the PWM signal
+ * @PWM_OUTPUT_FIXED: PWM output is fixed until a change request
+ * @PWM_OUTPUT_MODULATED: PWM output is modulated in hardware
+ * autonomously with a predefined pattern
+ */
+enum pwm_output_type {
+ PWM_OUTPUT_FIXED = 1 << 0,
+ PWM_OUTPUT_MODULATED = 1 << 1,
+};
+
+/**
+ * struct pwm_output_pattern - PWM duty pattern for MODULATED duty type
+ * @duty_pattern: PWM duty cycles in the pattern for duty modulation
+ * @num_entries: number of entries in the pattern
+ * @cycles_per_duty: number of PWM period cycles an entry stays at
+ */
+struct pwm_output_pattern {
+ u64 *duty_pattern;
+ unsigned int num_entries;
+ u64 cycles_per_duty;
+};
+
/*
* struct pwm_state - state of a PWM channel
* @period: PWM period (in nanoseconds)
@@ -56,9 +79,11 @@ enum {
* @enabled: PWM enabled status
*/
struct pwm_state {
- unsigned int period;
- unsigned int duty_cycle;
+ u64 period;
+ u64 duty_cycle;
enum pwm_polarity polarity;
+ enum pwm_output_type output_type;
+ struct pwm_output_pattern *output_pattern;
bool enabled;
};
@@ -111,12 +136,30 @@ static inline void pwm_set_period(struct pwm_device *pwm, unsigned int period)
pwm->state.period = period;
}
+static inline void pwm_set_period_extend(struct pwm_device *pwm, u64 period)
+{
+ if (pwm)
+ pwm->state.period = period;
+}
+
static inline unsigned int pwm_get_period(const struct pwm_device *pwm)
{
struct pwm_state state;
pwm_get_state(pwm, &state);
+ if (state.period > UINT_MAX)
+ pr_warn("PWM period %llu is truncated\n", state.period);
+
+ return (unsigned int)state.period;
+}
+
+static inline u64 pwm_get_period_extend(const struct pwm_device *pwm)
+{
+ struct pwm_state state;
+
+ pwm_get_state(pwm, &state);
+
return state.period;
}
@@ -126,12 +169,30 @@ static inline void pwm_set_duty_cycle(struct pwm_device *pwm, unsigned int duty)
pwm->state.duty_cycle = duty;
}
+static inline void pwm_set_duty_cycle_extend(struct pwm_device *pwm, u64 duty)
+{
+ if (pwm)
+ pwm->state.duty_cycle = duty;
+}
+
static inline unsigned int pwm_get_duty_cycle(const struct pwm_device *pwm)
{
struct pwm_state state;
pwm_get_state(pwm, &state);
+ if (state.duty_cycle > UINT_MAX)
+ pr_warn("PWM duty cycle %llu is truncated\n", state.duty_cycle);
+
+ return (unsigned int)state.duty_cycle;
+}
+
+static inline u64 pwm_get_duty_cycle_extend(const struct pwm_device *pwm)
+{
+ struct pwm_state state;
+
+ pwm_get_state(pwm, &state);
+
return state.duty_cycle;
}
@@ -144,6 +205,26 @@ static inline enum pwm_polarity pwm_get_polarity(const struct pwm_device *pwm)
return state.polarity;
}
+static inline enum pwm_output_type pwm_get_output_type(
+ const struct pwm_device *pwm)
+{
+ struct pwm_state state;
+
+ pwm_get_state(pwm, &state);
+
+ return state.output_type;
+}
+
+static inline struct pwm_output_pattern *pwm_get_output_pattern(
+ struct pwm_device *pwm)
+{
+ struct pwm_state state;
+
+ pwm_get_state(pwm, &state);
+
+ return pwm->state.output_pattern ?: NULL;
+}
+
static inline void pwm_get_args(const struct pwm_device *pwm,
struct pwm_args *args)
{
@@ -243,10 +324,15 @@ pwm_set_relative_duty_cycle(struct pwm_state *state, unsigned int duty_cycle,
* @request: optional hook for requesting a PWM
* @free: optional hook for freeing a PWM
* @config: configure duty cycles and period length for this PWM
+ * @config_extend: configure duty cycles and period length for this
+ * PWM with u64 data type
* @set_polarity: configure the polarity of this PWM
* @capture: capture and report PWM signal
* @enable: enable PWM output toggling
* @disable: disable PWM output toggling
+ * @get_output_type_supported: get the supported output type
+ * @set_output_type: set PWM output type
+ * @set_output_pattern: set the pattern for the modulated output
* @apply: atomically apply a new PWM config. The state argument
* should be adjusted with the real hardware config (if the
* approximate the period or duty_cycle value, state should
@@ -262,12 +348,21 @@ struct pwm_ops {
void (*free)(struct pwm_chip *chip, struct pwm_device *pwm);
int (*config)(struct pwm_chip *chip, struct pwm_device *pwm,
int duty_ns, int period_ns);
+ int (*config_extend)(struct pwm_chip *chip, struct pwm_device *pwm,
+ u64 duty_ns, u64 period_ns);
int (*set_polarity)(struct pwm_chip *chip, struct pwm_device *pwm,
enum pwm_polarity polarity);
int (*capture)(struct pwm_chip *chip, struct pwm_device *pwm,
struct pwm_capture *result, unsigned long timeout);
int (*enable)(struct pwm_chip *chip, struct pwm_device *pwm);
void (*disable)(struct pwm_chip *chip, struct pwm_device *pwm);
+ int (*get_output_type_supported)(struct pwm_chip *chip,
+ struct pwm_device *pwm);
+ int (*set_output_type)(struct pwm_chip *chip, struct pwm_device *pwm,
+ enum pwm_output_type output_type);
+ int (*set_output_pattern)(struct pwm_chip *chip,
+ struct pwm_device *pwm,
+ struct pwm_output_pattern *output_pattern);
int (*apply)(struct pwm_chip *chip, struct pwm_device *pwm,
struct pwm_state *state);
void (*get_state)(struct pwm_chip *chip, struct pwm_device *pwm,
@@ -309,8 +404,8 @@ struct pwm_chip {
* @duty_cycle: duty cycle of the PWM signal (in nanoseconds)
*/
struct pwm_capture {
- unsigned int period;
- unsigned int duty_cycle;
+ u64 period;
+ u64 duty_cycle;
};
#if IS_ENABLED(CONFIG_PWM)
@@ -321,6 +416,21 @@ int pwm_apply_state(struct pwm_device *pwm, struct pwm_state *state);
int pwm_adjust_config(struct pwm_device *pwm);
/**
+ * pwm_output_type_support()
+ * @pwm: PWM device
+ *
+ * Returns: output types supported by the PWM device
+ */
+static inline int pwm_get_output_type_supported(struct pwm_device *pwm)
+{
+ if (pwm->chip->ops->get_output_type_supported != NULL)
+ return pwm->chip->ops->get_output_type_supported(pwm->chip,
+ pwm);
+ else
+ return PWM_OUTPUT_FIXED;
+}
+
+/**
* pwm_config() - change a PWM device configuration
* @pwm: PWM device
* @duty_ns: "on" time (in nanoseconds)
@@ -349,6 +459,31 @@ static inline int pwm_config(struct pwm_device *pwm, int duty_ns,
}
/**
+ * pwm_config_extend() - change PWM period and duty length with u64 data type
+ * @pwm: PWM device
+ * @duty_ns: "on" time (in nanoseconds)
+ * @period_ns: duration (in nanoseconds) of one cycle
+ *
+ * Returns: 0 on success or a negative error code on failure.
+ */
+static inline int pwm_config_extend(struct pwm_device *pwm, u64 duty_ns,
+ u64 period_ns)
+{
+ struct pwm_state state;
+
+ if (!pwm)
+ return -EINVAL;
+
+ pwm_get_state(pwm, &state);
+ if (state.duty_cycle == duty_ns && state.period == period_ns)
+ return 0;
+
+ state.duty_cycle = duty_ns;
+ state.period = period_ns;
+ return pwm_apply_state(pwm, &state);
+}
+
+/**
* pwm_set_polarity() - configure the polarity of a PWM signal
* @pwm: PWM device
* @polarity: new polarity of the PWM signal
diff --git a/include/linux/quota.h b/include/linux/quota.h
index 27aab84..3088ac9 100644
--- a/include/linux/quota.h
+++ b/include/linux/quota.h
@@ -316,6 +316,9 @@ struct quota_format_ops {
int (*commit_dqblk)(struct dquot *dquot); /* Write structure for one user */
int (*release_dqblk)(struct dquot *dquot); /* Called when last reference to dquot is being dropped */
int (*get_next_id)(struct super_block *sb, struct kqid *qid); /* Get next ID with existing structure in the quota file */
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
};
/* Operations working with dquots */
@@ -335,6 +338,9 @@ struct dquot_operations {
int (*get_inode_usage) (struct inode *, qsize_t *);
/* Get next ID with active quota structure */
int (*get_next_id) (struct super_block *sb, struct kqid *qid);
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
};
struct path;
@@ -438,6 +444,9 @@ struct quotactl_ops {
int (*set_dqblk)(struct super_block *, struct kqid, struct qc_dqblk *);
int (*get_state)(struct super_block *, struct qc_state *);
int (*rm_xquota)(struct super_block *, unsigned int);
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
};
struct quota_format_type {
diff --git a/include/linux/raid/pq.h b/include/linux/raid/pq.h
index ea85052..9f3c175 100644
--- a/include/linux/raid/pq.h
+++ b/include/linux/raid/pq.h
@@ -32,7 +32,6 @@ extern const char raid6_empty_zero_page[PAGE_SIZE];
#include <errno.h>
#include <inttypes.h>
-#include <limits.h>
#include <stddef.h>
#include <sys/mman.h>
#include <sys/types.h>
diff --git a/include/linux/random.h b/include/linux/random.h
index 37209b3..04e4ee9 100644
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -19,6 +19,7 @@ struct random_ready_callback {
};
extern void add_device_randomness(const void *, unsigned int);
+extern void add_bootloader_randomness(const void *, unsigned int);
#if defined(CONFIG_GCC_PLUGIN_LATENT_ENTROPY) && !defined(__CHECKER__)
static inline void add_latent_entropy(void)
@@ -36,6 +37,7 @@ extern void add_interrupt_randomness(int irq, int irq_flags) __latent_entropy;
extern void get_random_bytes(void *buf, int nbytes);
extern int wait_for_random_bytes(void);
+extern int __init rand_initialize(void);
extern bool rng_is_initialized(void);
extern int add_random_ready_callback(struct random_ready_callback *rdy);
extern void del_random_ready_callback(struct random_ready_callback *rdy);
@@ -116,29 +118,21 @@ unsigned long randomize_page(unsigned long start, unsigned long range);
#ifdef CONFIG_ARCH_RANDOM
# include <asm/archrandom.h>
#else
-static inline bool arch_get_random_long(unsigned long *v)
+static inline bool __must_check arch_get_random_long(unsigned long *v)
{
- return 0;
+ return false;
}
-static inline bool arch_get_random_int(unsigned int *v)
+static inline bool __must_check arch_get_random_int(unsigned int *v)
{
- return 0;
+ return false;
}
-static inline bool arch_has_random(void)
+static inline bool __must_check arch_get_random_seed_long(unsigned long *v)
{
- return 0;
+ return false;
}
-static inline bool arch_get_random_seed_long(unsigned long *v)
+static inline bool __must_check arch_get_random_seed_int(unsigned int *v)
{
- return 0;
-}
-static inline bool arch_get_random_seed_int(unsigned int *v)
-{
- return 0;
-}
-static inline bool arch_has_random_seed(void)
-{
- return 0;
+ return false;
}
#endif
diff --git a/include/linux/reboot.h b/include/linux/reboot.h
index e63799a..3734cd8 100644
--- a/include/linux/reboot.h
+++ b/include/linux/reboot.h
@@ -14,6 +14,7 @@ struct device;
#define SYS_POWER_OFF 0x0003 /* Notify of system power off */
enum reboot_mode {
+ REBOOT_UNDEFINED = -1,
REBOOT_COLD = 0,
REBOOT_WARM,
REBOOT_HARD,
@@ -21,6 +22,7 @@ enum reboot_mode {
REBOOT_GPIO,
};
extern enum reboot_mode reboot_mode;
+extern enum reboot_mode panic_reboot_mode;
enum reboot_type {
BOOT_TRIPLE = 't',
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index 379505a..57d52ab 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -1145,6 +1145,7 @@ struct regmap_irq_chip {
unsigned int wake_base;
unsigned int type_base;
unsigned int irq_reg_stride;
+ unsigned int clear_ack;
bool mask_writeonly:1;
bool init_ack_masked:1;
bool mask_invert:1;
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index 0fd8fbb..68247969 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -20,6 +20,7 @@
#include <linux/device.h>
#include <linux/notifier.h>
#include <linux/regulator/consumer.h>
+#include <linux/regulator/proxy-consumer.h>
struct gpio_desc;
struct regmap;
@@ -475,6 +476,7 @@ struct regulator_dev {
/* time when this regulator was disabled last time */
unsigned long last_off_jiffy;
+ struct proxy_consumer *proxy_consumer;
};
struct regulator_dev *
@@ -485,6 +487,7 @@ devm_regulator_register(struct device *dev,
const struct regulator_desc *regulator_desc,
const struct regulator_config *config);
void regulator_unregister(struct regulator_dev *rdev);
+void regulator_sync_state(struct device *dev);
void devm_regulator_unregister(struct device *dev, struct regulator_dev *rdev);
int regulator_notifier_call_chain(struct regulator_dev *rdev,
diff --git a/include/linux/regulator/proxy-consumer.h b/include/linux/regulator/proxy-consumer.h
new file mode 100644
index 0000000..980440d
--- /dev/null
+++ b/include/linux/regulator/proxy-consumer.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2013, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef _LINUX_REGULATOR_PROXY_CONSUMER_H_
+#define _LINUX_REGULATOR_PROXY_CONSUMER_H_
+
+#include <linux/device.h>
+#include <linux/of.h>
+
+struct proxy_consumer;
+
+#ifdef CONFIG_REGULATOR_PROXY_CONSUMER
+
+struct proxy_consumer *regulator_proxy_consumer_register(struct device *reg_dev,
+ struct device_node *reg_node);
+
+int regulator_proxy_consumer_unregister(struct proxy_consumer *consumer);
+
+#else
+
+static inline struct proxy_consumer *regulator_proxy_consumer_register(
+ struct device *reg_dev, struct device_node *reg_node)
+{ return NULL; }
+
+static inline int regulator_proxy_consumer_unregister(
+ struct proxy_consumer *consumer)
+{ return 0; }
+
+#endif
+
+#endif
diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h
index ab93b6e..93c2235 100644
--- a/include/linux/rwsem.h
+++ b/include/linux/rwsem.h
@@ -42,6 +42,11 @@ struct rw_semaphore {
#ifdef CONFIG_DEBUG_LOCK_ALLOC
struct lockdep_map dep_map;
#endif
+ /* NOTICE: m_count is a vendor variable used for the config
+ * CONFIG_RWSEM_PRIO_AWARE. This is included here to maintain ABI
+ * compatibility with our vendors */
+ /* count for waiters preempt to queue in wait list */
+ long m_count;
};
/*
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 5524cd5..ae4b81d7 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -26,8 +26,10 @@
#include <linux/sched/prio.h>
#include <linux/signal_types.h>
#include <linux/mm_types_task.h>
+#include <linux/mm_event.h>
#include <linux/task_io_accounting.h>
#include <linux/rseq.h>
+#include <linux/android_kabi.h>
/* task_struct member predeclarations (sorted alphabetically): */
struct audit_context;
@@ -279,6 +281,18 @@ struct vtime {
u64 gtime;
};
+/*
+ * Utilization clamp constraints.
+ * @UCLAMP_MIN: Minimum utilization
+ * @UCLAMP_MAX: Maximum utilization
+ * @UCLAMP_CNT: Utilization clamp constraints count
+ */
+enum uclamp_id {
+ UCLAMP_MIN = 0,
+ UCLAMP_MAX,
+ UCLAMP_CNT
+};
+
struct sched_info {
#ifdef CONFIG_SCHED_INFO
/* Cumulative counters: */
@@ -310,6 +324,10 @@ struct sched_info {
# define SCHED_FIXEDPOINT_SHIFT 10
# define SCHED_FIXEDPOINT_SCALE (1L << SCHED_FIXEDPOINT_SHIFT)
+/* Increase resolution of cpu_capacity calculations */
+# define SCHED_CAPACITY_SHIFT SCHED_FIXEDPOINT_SHIFT
+# define SCHED_CAPACITY_SCALE (1L << SCHED_CAPACITY_SHIFT)
+
struct load_weight {
unsigned long weight;
u32 inv_weight;
@@ -355,12 +373,6 @@ struct util_est {
* For cfs_rq, it is the aggregated load_avg of all runnable and
* blocked sched_entities.
*
- * load_avg may also take frequency scaling into account:
- *
- * load_avg = runnable% * scale_load_down(load) * freq%
- *
- * where freq% is the CPU frequency normalized to the highest frequency.
- *
* [util_avg definition]
*
* util_avg = running% * SCHED_CAPACITY_SCALE
@@ -369,17 +381,14 @@ struct util_est {
* a CPU. For cfs_rq, it is the aggregated util_avg of all runnable
* and blocked sched_entities.
*
- * util_avg may also factor frequency scaling and CPU capacity scaling:
+ * load_avg and util_avg don't direcly factor frequency scaling and CPU
+ * capacity scaling. The scaling is done through the rq_clock_pelt that
+ * is used for computing those signals (see update_rq_clock_pelt())
*
- * util_avg = running% * SCHED_CAPACITY_SCALE * freq% * capacity%
- *
- * where freq% is the same as above, and capacity% is the CPU capacity
- * normalized to the greatest capacity (due to uarch differences, etc).
- *
- * N.B., the above ratios (runnable%, running%, freq%, and capacity%)
- * themselves are in the range of [0, 1]. To do fixed point arithmetics,
- * we therefore scale them to as large a range as necessary. This is for
- * example reflected by util_avg's SCHED_CAPACITY_SCALE.
+ * N.B., the above ratios (runnable% and running%) themselves are in the
+ * range of [0, 1]. To do fixed point arithmetics, we therefore scale them
+ * to as large a range as necessary. This is for example reflected by
+ * util_avg's SCHED_CAPACITY_SCALE.
*
* [Overflow issue]
*
@@ -478,6 +487,11 @@ struct sched_entity {
*/
struct sched_avg avg;
#endif
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
struct sched_rt_entity {
@@ -496,6 +510,11 @@ struct sched_rt_entity {
/* rq "owned" by this entity/group: */
struct rt_rq *my_q;
#endif
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
} __randomize_layout;
struct sched_dl_entity {
@@ -567,6 +586,41 @@ struct sched_dl_entity {
struct hrtimer inactive_timer;
};
+#ifdef CONFIG_UCLAMP_TASK
+/* Number of utilization clamp buckets (shorter alias) */
+#define UCLAMP_BUCKETS CONFIG_UCLAMP_BUCKETS_COUNT
+
+/*
+ * Utilization clamp for a scheduling entity
+ * @value: clamp value "assigned" to a se
+ * @bucket_id: bucket index corresponding to the "assigned" value
+ * @active: the se is currently refcounted in a rq's bucket
+ * @user_defined: the requested clamp value comes from user-space
+ *
+ * The bucket_id is the index of the clamp bucket matching the clamp value
+ * which is pre-computed and stored to avoid expensive integer divisions from
+ * the fast path.
+ *
+ * The active bit is set whenever a task has got an "effective" value assigned,
+ * which can be different from the clamp value "requested" from user-space.
+ * This allows to know a task is refcounted in the rq's bucket corresponding
+ * to the "effective" bucket_id.
+ *
+ * The user_defined bit is set whenever a task has got a task-specific clamp
+ * value requested from userspace, i.e. the system defaults apply to this task
+ * just as a restriction. This allows to relax default clamps when a less
+ * restrictive task-specific value has been requested, thus allowing to
+ * implement a "nice" semantic. For example, a task running with a 20%
+ * default boost can still drop its own boosting to 0%.
+ */
+struct uclamp_se {
+ unsigned int value : bits_per(SCHED_CAPACITY_SCALE);
+ unsigned int bucket_id : bits_per(UCLAMP_BUCKETS);
+ unsigned int active : 1;
+ unsigned int user_defined : 1;
+};
+#endif /* CONFIG_UCLAMP_TASK */
+
union rcu_special {
struct {
u8 blocked;
@@ -644,11 +698,25 @@ struct task_struct {
const struct sched_class *sched_class;
struct sched_entity se;
struct sched_rt_entity rt;
+
+ /* task boost vendor fields */
+ u64 last_sleep_ts;
+ int boost;
+ u64 boost_period;
+ u64 boost_expires;
+
#ifdef CONFIG_CGROUP_SCHED
struct task_group *sched_task_group;
#endif
struct sched_dl_entity dl;
+#ifdef CONFIG_UCLAMP_TASK
+ /* Clamp values requested for a scheduling entity */
+ struct uclamp_se uclamp_req[UCLAMP_CNT];
+ /* Effective clamp values used for a scheduling entity */
+ struct uclamp_se uclamp[UCLAMP_CNT];
+#endif
+
#ifdef CONFIG_PREEMPT_NOTIFIERS
/* List of struct preempt_notifier: */
struct hlist_head preempt_notifiers;
@@ -661,6 +729,7 @@ struct task_struct {
unsigned int policy;
int nr_cpus_allowed;
cpumask_t cpus_allowed;
+ cpumask_t cpus_requested;
#ifdef CONFIG_PREEMPT_RCU
int rcu_read_lock_nesting;
@@ -710,6 +779,10 @@ struct task_struct {
unsigned sched_contributes_to_load:1;
unsigned sched_migrated:1;
unsigned sched_remote_wakeup:1;
+#ifdef CONFIG_PSI
+ unsigned sched_psi_wake_requeue:1;
+#endif
+
/* Force alignment to the next boundary: */
unsigned :0;
@@ -799,6 +872,10 @@ struct task_struct {
u64 stimescaled;
#endif
u64 gtime;
+#ifdef CONFIG_CPU_FREQ_TIMES
+ u64 *time_in_state;
+ unsigned int max_state;
+#endif
struct prev_cputime prev_cputime;
#ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN
struct vtime vtime;
@@ -906,7 +983,10 @@ struct task_struct {
/* Deadlock detection and priority inheritance handling: */
struct rt_mutex_waiter *pi_blocked_on;
#endif
-
+#ifdef CONFIG_MM_EVENT_STAT
+ struct mm_event_task mm_event[MM_TYPE_NUM];
+ unsigned long next_period;
+#endif
#ifdef CONFIG_DEBUG_MUTEXES
/* Mutex deadlock detection: */
struct mutex_waiter *blocked_on;
@@ -963,6 +1043,10 @@ struct task_struct {
siginfo_t *last_siginfo;
struct task_io_accounting ioac;
+#ifdef CONFIG_PSI
+ /* Pressure stall state */
+ unsigned int psi_flags;
+#endif
#ifdef CONFIG_TASK_XACCT
/* Accumulated RSS usage: */
u64 acct_rss_mem1;
@@ -996,8 +1080,6 @@ struct task_struct {
#endif
struct list_head pi_state_list;
struct futex_pi_state *pi_state_cache;
- struct mutex futex_exit_mutex;
- unsigned int futex_state;
#endif
#ifdef CONFIG_PERF_EVENTS
struct perf_event_context *perf_event_ctxp[perf_nr_task_contexts];
@@ -1145,6 +1227,8 @@ struct task_struct {
#endif /* CONFIG_TRACING */
#ifdef CONFIG_KCOV
+ /* See kernel/kcov.c for more details. */
+
/* Coverage collection mode enabled for this task (0 if disabled): */
unsigned int kcov_mode;
@@ -1156,6 +1240,12 @@ struct task_struct {
/* KCOV descriptor wired with this task or NULL: */
struct kcov *kcov;
+
+ /* KCOV common handle for remote coverage collection: */
+ u64 kcov_handle;
+
+ /* KCOV sequence number: */
+ int kcov_sequence;
#endif
#ifdef CONFIG_MEMCG
@@ -1202,6 +1292,29 @@ struct task_struct {
/* Used by LSM modules for access restriction: */
void *security;
#endif
+ /* task is frozen/stopped (used by the cgroup freezer) */
+ ANDROID_KABI_USE(1, unsigned frozen:1);
+
+ /* 095444fad7e3 ("futex: Replace PF_EXITPIDONE with a state") */
+ ANDROID_KABI_USE(2, unsigned int futex_state);
+
+ /*
+ * f9b0c6c556db ("futex: Add mutex around futex exit")
+ * A struct mutex takes 32 bytes, or 4 64bit entries, so pick off
+ * 4 of the reserved members, and replace them with a struct mutex.
+ * Do the GENKSYMS hack to work around the CRC issues
+ */
+#ifdef __GENKSYMS__
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
+ ANDROID_KABI_RESERVE(5);
+ ANDROID_KABI_RESERVE(6);
+#else
+ struct mutex futex_exit_mutex;
+#endif
+
+ ANDROID_KABI_RESERVE(7);
+ ANDROID_KABI_RESERVE(8);
/*
* New fields for task_struct should be added above here, so that
@@ -1399,6 +1512,7 @@ extern struct pid *cad_pid;
#define PF_KTHREAD 0x00200000 /* I am a kernel thread */
#define PF_RANDOMIZE 0x00400000 /* Randomize virtual address space */
#define PF_SWAPWRITE 0x00800000 /* Allowed to write to swap */
+#define PF_MEMSTALL 0x01000000 /* Stalled due to lack of memory */
#define PF_NO_SETAFFINITY 0x04000000 /* Userland is not allowed to meddle with cpus_allowed */
#define PF_MCE_EARLY 0x08000000 /* Early kill for mce process policy */
#define PF_MUTEX_TESTER 0x20000000 /* Thread belongs to the rt mutex tester */
diff --git a/include/linux/sched/cpufreq.h b/include/linux/sched/cpufreq.h
index a4530d7..cc6bcc1 100644
--- a/include/linux/sched/cpufreq.h
+++ b/include/linux/sched/cpufreq.h
@@ -23,6 +23,12 @@ void cpufreq_add_update_util_hook(int cpu, struct update_util_data *data,
unsigned int flags));
void cpufreq_remove_update_util_hook(int cpu);
bool cpufreq_this_cpu_can_update(struct cpufreq_policy *policy);
+
+static inline unsigned long map_util_freq(unsigned long util,
+ unsigned long freq, unsigned long cap)
+{
+ return (freq + (freq >> 2)) * util / cap;
+}
#endif /* CONFIG_CPU_FREQ */
#endif /* _LINUX_SCHED_CPUFREQ_H */
diff --git a/include/linux/sched/jobctl.h b/include/linux/sched/jobctl.h
index 98228bd..fa067de 100644
--- a/include/linux/sched/jobctl.h
+++ b/include/linux/sched/jobctl.h
@@ -18,6 +18,7 @@ struct task_struct;
#define JOBCTL_TRAP_NOTIFY_BIT 20 /* trap for NOTIFY */
#define JOBCTL_TRAPPING_BIT 21 /* switching to TRACED */
#define JOBCTL_LISTENING_BIT 22 /* ptracer is listening for events */
+#define JOBCTL_TRAP_FREEZE_BIT 23 /* trap for cgroup freezer */
#define JOBCTL_STOP_DEQUEUED (1UL << JOBCTL_STOP_DEQUEUED_BIT)
#define JOBCTL_STOP_PENDING (1UL << JOBCTL_STOP_PENDING_BIT)
@@ -26,6 +27,7 @@ struct task_struct;
#define JOBCTL_TRAP_NOTIFY (1UL << JOBCTL_TRAP_NOTIFY_BIT)
#define JOBCTL_TRAPPING (1UL << JOBCTL_TRAPPING_BIT)
#define JOBCTL_LISTENING (1UL << JOBCTL_LISTENING_BIT)
+#define JOBCTL_TRAP_FREEZE (1UL << JOBCTL_TRAP_FREEZE_BIT)
#define JOBCTL_TRAP_MASK (JOBCTL_TRAP_STOP | JOBCTL_TRAP_NOTIFY)
#define JOBCTL_PENDING_MASK (JOBCTL_STOP_PENDING | JOBCTL_TRAP_MASK)
diff --git a/include/linux/sched/loadavg.h b/include/linux/sched/loadavg.h
index 80bc84b..4859bea 100644
--- a/include/linux/sched/loadavg.h
+++ b/include/linux/sched/loadavg.h
@@ -22,10 +22,26 @@ extern void get_avenrun(unsigned long *loads, unsigned long offset, int shift);
#define EXP_5 2014 /* 1/exp(5sec/5min) */
#define EXP_15 2037 /* 1/exp(5sec/15min) */
-#define CALC_LOAD(load,exp,n) \
- load *= exp; \
- load += n*(FIXED_1-exp); \
- load >>= FSHIFT;
+/*
+ * a1 = a0 * e + a * (1 - e)
+ */
+static inline unsigned long
+calc_load(unsigned long load, unsigned long exp, unsigned long active)
+{
+ unsigned long newload;
+
+ newload = load * exp + active * (FIXED_1 - exp);
+ if (active >= load)
+ newload += FIXED_1-1;
+
+ return newload / FIXED_1;
+}
+
+extern unsigned long calc_load_n(unsigned long load, unsigned long exp,
+ unsigned long active, unsigned int n);
+
+#define LOAD_INT(x) ((x) >> FSHIFT)
+#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)
extern void calc_global_load(unsigned long ticks);
diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h
index 660d78c..9c456c7 100644
--- a/include/linux/sched/signal.h
+++ b/include/linux/sched/signal.h
@@ -8,6 +8,7 @@
#include <linux/sched/jobctl.h>
#include <linux/sched/task.h>
#include <linux/cred.h>
+#include <linux/android_kabi.h>
/*
* Types defining task->signal and task->sighand and APIs using them:
@@ -232,6 +233,10 @@ struct signal_struct {
struct mutex cred_guard_mutex; /* guard against foreign influences on
* credential calculations
* (notably. ptrace) */
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
} __randomize_layout;
/*
diff --git a/include/linux/sched/sysctl.h b/include/linux/sched/sysctl.h
index a9c32da..a6198cb 100644
--- a/include/linux/sched/sysctl.h
+++ b/include/linux/sched/sysctl.h
@@ -22,6 +22,8 @@ enum { sysctl_hung_task_timeout_secs = 0 };
extern unsigned int sysctl_sched_latency;
extern unsigned int sysctl_sched_min_granularity;
+extern unsigned int sysctl_sched_sync_hint_enable;
+extern unsigned int sysctl_sched_cstate_aware;
extern unsigned int sysctl_sched_wakeup_granularity;
extern unsigned int sysctl_sched_child_runs_first;
@@ -56,6 +58,11 @@ int sched_proc_update_handler(struct ctl_table *table, int write,
extern unsigned int sysctl_sched_rt_period;
extern int sysctl_sched_rt_runtime;
+#ifdef CONFIG_UCLAMP_TASK
+extern unsigned int sysctl_sched_uclamp_util_min;
+extern unsigned int sysctl_sched_uclamp_util_max;
+#endif
+
#ifdef CONFIG_CFS_BANDWIDTH
extern unsigned int sysctl_sched_cfs_bandwidth_slice;
#endif
@@ -75,6 +82,12 @@ extern int sched_rt_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp,
loff_t *ppos);
+#ifdef CONFIG_UCLAMP_TASK
+extern int sysctl_sched_uclamp_handler(struct ctl_table *table, int write,
+ void __user *buffer, size_t *lenp,
+ loff_t *ppos);
+#endif
+
extern int sysctl_numa_balancing(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp,
loff_t *ppos);
@@ -83,4 +96,11 @@ extern int sysctl_schedstats(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp,
loff_t *ppos);
+#if defined(CONFIG_ENERGY_MODEL) && defined(CONFIG_CPU_FREQ_GOV_SCHEDUTIL)
+extern unsigned int sysctl_sched_energy_aware;
+extern int sched_energy_aware_handler(struct ctl_table *table, int write,
+ void __user *buffer, size_t *lenp,
+ loff_t *ppos);
+#endif
+
#endif /* _LINUX_SCHED_SYSCTL_H */
diff --git a/include/linux/sched/topology.h b/include/linux/sched/topology.h
index 15f3f61..f005172 100644
--- a/include/linux/sched/topology.h
+++ b/include/linux/sched/topology.h
@@ -3,16 +3,11 @@
#define _LINUX_SCHED_TOPOLOGY_H
#include <linux/topology.h>
+#include <linux/android_kabi.h>
#include <linux/sched/idle.h>
/*
- * Increase resolution of cpu_capacity calculations
- */
-#define SCHED_CAPACITY_SHIFT SCHED_FIXEDPOINT_SHIFT
-#define SCHED_CAPACITY_SCALE (1L << SCHED_CAPACITY_SHIFT)
-
-/*
* sched-domains (multiprocessor balancing) declarations:
*/
#ifdef CONFIG_SMP
@@ -23,10 +18,10 @@
#define SD_BALANCE_FORK 0x0008 /* Balance on fork, clone */
#define SD_BALANCE_WAKE 0x0010 /* Balance on wakeup */
#define SD_WAKE_AFFINE 0x0020 /* Wake task to waking CPU */
-#define SD_ASYM_CPUCAPACITY 0x0040 /* Groups have different max cpu capacities */
-#define SD_SHARE_CPUCAPACITY 0x0080 /* Domain members share cpu capacity */
+#define SD_ASYM_CPUCAPACITY 0x0040 /* Domain members have different CPU capacities */
+#define SD_SHARE_CPUCAPACITY 0x0080 /* Domain members share CPU capacity */
#define SD_SHARE_POWERDOMAIN 0x0100 /* Domain members share power domain */
-#define SD_SHARE_PKG_RESOURCES 0x0200 /* Domain members share cpu pkg resources */
+#define SD_SHARE_PKG_RESOURCES 0x0200 /* Domain members share CPU pkg resources */
#define SD_SERIALIZE 0x0400 /* Only a single load balancing instance */
#define SD_ASYM_PACKING 0x0800 /* Place busy groups earlier in the domain */
#define SD_PREFER_SIBLING 0x1000 /* Prefer to place tasks in a sibling domain */
@@ -72,6 +67,8 @@ struct sched_domain_shared {
atomic_t ref;
atomic_t nr_busy_cpus;
int has_idle_cores;
+
+ bool overutilized;
};
struct sched_domain {
@@ -147,6 +144,10 @@ struct sched_domain {
struct sched_domain_shared *shared;
unsigned int span_weight;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+
/*
* Span of all CPUs in this domain.
*
@@ -202,6 +203,17 @@ extern void set_sched_topology(struct sched_domain_topology_level *tl);
# define SD_INIT_NAME(type)
#endif
+#ifndef arch_scale_cpu_capacity
+static __always_inline
+unsigned long arch_scale_cpu_capacity(struct sched_domain *sd, int cpu)
+{
+ if (sd && (sd->flags & SD_SHARE_CPUCAPACITY) && (sd->span_weight > 1))
+ return sd->smt_gain / sd->span_weight;
+
+ return SCHED_CAPACITY_SCALE;
+}
+#endif
+
#else /* CONFIG_SMP */
struct sched_domain_attr;
@@ -217,6 +229,14 @@ static inline bool cpus_share_cache(int this_cpu, int that_cpu)
return true;
}
+#ifndef arch_scale_cpu_capacity
+static __always_inline
+unsigned long arch_scale_cpu_capacity(void __always_unused *sd, int cpu)
+{
+ return SCHED_CAPACITY_SCALE;
+}
+#endif
+
#endif /* !CONFIG_SMP */
static inline int task_node(const struct task_struct *p)
diff --git a/include/linux/sched/user.h b/include/linux/sched/user.h
index 39ad98c..af25768 100644
--- a/include/linux/sched/user.h
+++ b/include/linux/sched/user.h
@@ -6,6 +6,7 @@
#include <linux/atomic.h>
#include <linux/refcount.h>
#include <linux/ratelimit.h>
+#include <linux/android_kabi.h>
struct key;
@@ -46,6 +47,9 @@ struct user_struct {
/* Miscellaneous per-user rate limit */
struct ratelimit_state ratelimit;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
};
extern int uids_sysfs_init(void);
diff --git a/include/linux/sched/wake_q.h b/include/linux/sched/wake_q.h
index 10b19a1..a3661e9 100644
--- a/include/linux/sched/wake_q.h
+++ b/include/linux/sched/wake_q.h
@@ -34,6 +34,7 @@
struct wake_q_head {
struct wake_q_node *first;
struct wake_q_node **lastp;
+ int count;
};
#define WAKE_Q_TAIL ((struct wake_q_node *) 0x01)
@@ -45,6 +46,7 @@ static inline void wake_q_init(struct wake_q_head *head)
{
head->first = WAKE_Q_TAIL;
head->lastp = &head->first;
+ head->count = 0;
}
extern void wake_q_add(struct wake_q_head *head,
diff --git a/include/linux/sched/xacct.h b/include/linux/sched/xacct.h
index c078f0a..9544c9d 100644
--- a/include/linux/sched/xacct.h
+++ b/include/linux/sched/xacct.h
@@ -28,6 +28,11 @@ static inline void inc_syscw(struct task_struct *tsk)
{
tsk->ioac.syscw++;
}
+
+static inline void inc_syscfs(struct task_struct *tsk)
+{
+ tsk->ioac.syscfs++;
+}
#else
static inline void add_rchar(struct task_struct *tsk, ssize_t amt)
{
@@ -44,6 +49,10 @@ static inline void inc_syscr(struct task_struct *tsk)
static inline void inc_syscw(struct task_struct *tsk)
{
}
+
+static inline void inc_syscfs(struct task_struct *tsk)
+{
+}
#endif
#endif /* _LINUX_SCHED_XACCT_H */
diff --git a/include/linux/scmi_protocol.h b/include/linux/scmi_protocol.h
index f4c9fc0..3105055 100644
--- a/include/linux/scmi_protocol.h
+++ b/include/linux/scmi_protocol.h
@@ -91,6 +91,8 @@ struct scmi_clk_ops {
* to sustained performance level mapping
* @freq_get: gets the frequency for a given device using sustained frequency
* to sustained performance level mapping
+ * @est_power_get: gets the estimated power cost for a given performance domain
+ * at a given frequency
*/
struct scmi_perf_ops {
int (*limits_set)(const struct scmi_handle *handle, u32 domain,
@@ -110,6 +112,8 @@ struct scmi_perf_ops {
unsigned long rate, bool poll);
int (*freq_get)(const struct scmi_handle *handle, u32 domain,
unsigned long *rate, bool poll);
+ int (*est_power_get)(const struct scmi_handle *handle, u32 domain,
+ unsigned long *rate, unsigned long *power);
};
/**
diff --git a/include/linux/scs.h b/include/linux/scs.h
new file mode 100644
index 0000000..c5572fd
--- /dev/null
+++ b/include/linux/scs.h
@@ -0,0 +1,57 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Shadow Call Stack support.
+ *
+ * Copyright (C) 2019 Google LLC
+ */
+
+#ifndef _LINUX_SCS_H
+#define _LINUX_SCS_H
+
+#include <linux/gfp.h>
+#include <linux/sched.h>
+#include <asm/page.h>
+
+#ifdef CONFIG_SHADOW_CALL_STACK
+
+/*
+ * In testing, 1 KiB shadow stack size (i.e. 128 stack frames on a 64-bit
+ * architecture) provided ~40% safety margin on stack usage while keeping
+ * memory allocation overhead reasonable.
+ */
+#define SCS_SIZE 1024UL
+#define GFP_SCS (GFP_KERNEL | __GFP_ZERO)
+
+/*
+ * A random number outside the kernel's virtual address space to mark the
+ * end of the shadow stack.
+ */
+#define SCS_END_MAGIC 0xaf0194819b1635f6UL
+
+#define task_scs(tsk) (task_thread_info(tsk)->shadow_call_stack)
+
+static inline void task_set_scs(struct task_struct *tsk, void *s)
+{
+ task_scs(tsk) = s;
+}
+
+extern void scs_init(void);
+extern void scs_task_reset(struct task_struct *tsk);
+extern int scs_prepare(struct task_struct *tsk, int node);
+extern bool scs_corrupted(struct task_struct *tsk);
+extern void scs_release(struct task_struct *tsk);
+
+#else /* CONFIG_SHADOW_CALL_STACK */
+
+#define task_scs(tsk) NULL
+
+static inline void task_set_scs(struct task_struct *tsk, void *s) {}
+static inline void scs_init(void) {}
+static inline void scs_task_reset(struct task_struct *tsk) {}
+static inline int scs_prepare(struct task_struct *tsk, int node) { return 0; }
+static inline bool scs_corrupted(struct task_struct *tsk) { return false; }
+static inline void scs_release(struct task_struct *tsk) {}
+
+#endif /* CONFIG_SHADOW_CALL_STACK */
+
+#endif /* _LINUX_SCS_H */
diff --git a/include/linux/security.h b/include/linux/security.h
index 454cc96..ef2079c 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -1843,5 +1843,42 @@ static inline void free_secdata(void *secdata)
{ }
#endif /* CONFIG_SECURITY */
-#endif /* ! __LINUX_SECURITY_H */
+#ifdef CONFIG_PERF_EVENTS
+struct perf_event_attr;
+struct perf_event;
+#ifdef CONFIG_SECURITY
+extern int security_perf_event_open(struct perf_event_attr *attr, int type);
+extern int security_perf_event_alloc(struct perf_event *event);
+extern void security_perf_event_free(struct perf_event *event);
+extern int security_perf_event_read(struct perf_event *event);
+extern int security_perf_event_write(struct perf_event *event);
+#else
+static inline int security_perf_event_open(struct perf_event_attr *attr,
+ int type)
+{
+ return 0;
+}
+
+static inline int security_perf_event_alloc(struct perf_event *event)
+{
+ return 0;
+}
+
+static inline void security_perf_event_free(struct perf_event *event)
+{
+}
+
+static inline int security_perf_event_read(struct perf_event *event)
+{
+ return 0;
+}
+
+static inline int security_perf_event_write(struct perf_event *event)
+{
+ return 0;
+}
+#endif /* CONFIG_SECURITY */
+#endif /* CONFIG_PERF_EVENTS */
+
+#endif /* ! __LINUX_SECURITY_H */
diff --git a/include/linux/seq_buf.h b/include/linux/seq_buf.h
index 7cc9522..aa5deb0 100644
--- a/include/linux/seq_buf.h
+++ b/include/linux/seq_buf.h
@@ -30,7 +30,7 @@ static inline void seq_buf_clear(struct seq_buf *s)
}
static inline void
-seq_buf_init(struct seq_buf *s, char *buf, unsigned int size)
+seq_buf_init(struct seq_buf *s, unsigned char *buf, unsigned int size)
{
s->buffer = buf;
s->size = size;
diff --git a/include/linux/serdev.h b/include/linux/serdev.h
index f153b2c..df6a853 100644
--- a/include/linux/serdev.h
+++ b/include/linux/serdev.h
@@ -173,9 +173,21 @@ int serdev_device_add(struct serdev_device *);
void serdev_device_remove(struct serdev_device *);
struct serdev_controller *serdev_controller_alloc(struct device *, size_t);
-int serdev_controller_add(struct serdev_controller *);
+int serdev_controller_add_platform(struct serdev_controller *, bool);
void serdev_controller_remove(struct serdev_controller *);
+/**
+ * serdev_controller_add() - Add an serdev controller
+ * @ctrl: controller to be registered.
+ *
+ * Register a controller previously allocated via serdev_controller_alloc() with
+ * the serdev core.
+ */
+static inline int serdev_controller_add(struct serdev_controller *ctrl)
+{
+ return serdev_controller_add_platform(ctrl, false);
+}
+
static inline void serdev_controller_write_wakeup(struct serdev_controller *ctrl)
{
struct serdev_device *serdev = ctrl->serdev;
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index f97734f..2bb6429 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -249,8 +249,8 @@ struct nf_conntrack {
atomic_t use;
};
#endif
+#include <linux/android_kabi.h>
-#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
struct nf_bridge_info {
refcount_t use;
enum {
@@ -278,7 +278,6 @@ struct nf_bridge_info {
char neigh_header[8];
};
};
-#endif
struct sk_buff_head {
/* These two members must be first. */
@@ -713,9 +712,7 @@ struct sk_buff {
#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
unsigned long _nfct;
#endif
-#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
struct nf_bridge_info *nf_bridge;
-#endif
unsigned int len,
data_len;
__u16 mac_len,
@@ -849,6 +846,9 @@ struct sk_buff {
__u32 headers_end[0];
/* public: */
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+
/* These elements must be at the end, see alloc_skb() for details. */
sk_buff_data_t tail;
sk_buff_data_t end;
@@ -3923,8 +3923,8 @@ static inline void nf_reset(struct sk_buff *skb)
#endif
#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
nf_bridge_put(skb->nf_bridge);
- skb->nf_bridge = NULL;
#endif
+ skb->nf_bridge = NULL;
}
static inline void nf_reset_trace(struct sk_buff *skb)
diff --git a/include/linux/slab.h b/include/linux/slab.h
index d639341..1409fae 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -297,11 +297,42 @@ static inline void __check_heap_object(const void *ptr, unsigned long n,
#define SLAB_OBJ_MIN_SIZE (KMALLOC_MIN_SIZE < 16 ? \
(KMALLOC_MIN_SIZE) : 16)
-#ifndef CONFIG_SLOB
-extern struct kmem_cache *kmalloc_caches[KMALLOC_SHIFT_HIGH + 1];
+/*
+ * Whenever changing this, take care of that kmalloc_type() and
+ * create_kmalloc_caches() still work as intended.
+ */
+enum kmalloc_cache_type {
+ KMALLOC_NORMAL = 0,
+ KMALLOC_RECLAIM,
#ifdef CONFIG_ZONE_DMA
-extern struct kmem_cache *kmalloc_dma_caches[KMALLOC_SHIFT_HIGH + 1];
+ KMALLOC_DMA,
#endif
+ NR_KMALLOC_TYPES
+};
+
+#ifndef CONFIG_SLOB
+extern struct kmem_cache *
+kmalloc_caches[NR_KMALLOC_TYPES][KMALLOC_SHIFT_HIGH + 1];
+
+static __always_inline enum kmalloc_cache_type kmalloc_type(gfp_t flags)
+{
+#ifdef CONFIG_ZONE_DMA
+ /*
+ * The most common case is KMALLOC_NORMAL, so test for it
+ * with a single branch for both flags.
+ */
+ if (likely((flags & (__GFP_DMA | __GFP_RECLAIMABLE)) == 0))
+ return KMALLOC_NORMAL;
+
+ /*
+ * At least one of the flags has to be set. If both are, __GFP_DMA
+ * is more important.
+ */
+ return flags & __GFP_DMA ? KMALLOC_DMA : KMALLOC_RECLAIM;
+#else
+ return flags & __GFP_RECLAIMABLE ? KMALLOC_RECLAIM : KMALLOC_NORMAL;
+#endif
+}
/*
* Figure out which kmalloc slab an allocation of a certain size
@@ -415,7 +446,7 @@ static __always_inline void *kmem_cache_alloc_trace(struct kmem_cache *s,
{
void *ret = kmem_cache_alloc(s, flags);
- kasan_kmalloc(s, ret, size, flags);
+ ret = kasan_kmalloc(s, ret, size, flags);
return ret;
}
@@ -426,7 +457,7 @@ kmem_cache_alloc_node_trace(struct kmem_cache *s,
{
void *ret = kmem_cache_alloc_node(s, gfpflags, node);
- kasan_kmalloc(s, ret, size, gfpflags);
+ ret = kasan_kmalloc(s, ret, size, gfpflags);
return ret;
}
#endif /* CONFIG_TRACING */
@@ -503,18 +534,20 @@ static __always_inline void *kmalloc_large(size_t size, gfp_t flags)
static __always_inline void *kmalloc(size_t size, gfp_t flags)
{
if (__builtin_constant_p(size)) {
+#ifndef CONFIG_SLOB
+ unsigned int index;
+#endif
if (size > KMALLOC_MAX_CACHE_SIZE)
return kmalloc_large(size, flags);
#ifndef CONFIG_SLOB
- if (!(flags & GFP_DMA)) {
- unsigned int index = kmalloc_index(size);
+ index = kmalloc_index(size);
- if (!index)
- return ZERO_SIZE_PTR;
+ if (!index)
+ return ZERO_SIZE_PTR;
- return kmem_cache_alloc_trace(kmalloc_caches[index],
- flags, size);
- }
+ return kmem_cache_alloc_trace(
+ kmalloc_caches[kmalloc_type(flags)][index],
+ flags, size);
#endif
}
return __kmalloc(size, flags);
@@ -544,13 +577,14 @@ static __always_inline void *kmalloc_node(size_t size, gfp_t flags, int node)
{
#ifndef CONFIG_SLOB
if (__builtin_constant_p(size) &&
- size <= KMALLOC_MAX_CACHE_SIZE && !(flags & GFP_DMA)) {
+ size <= KMALLOC_MAX_CACHE_SIZE) {
unsigned int i = kmalloc_index(size);
if (!i)
return ZERO_SIZE_PTR;
- return kmem_cache_alloc_node_trace(kmalloc_caches[i],
+ return kmem_cache_alloc_node_trace(
+ kmalloc_caches[kmalloc_type(flags)][i],
flags, node, size);
}
#endif
diff --git a/include/linux/slab_def.h b/include/linux/slab_def.h
index 3485c58..9a5eafb 100644
--- a/include/linux/slab_def.h
+++ b/include/linux/slab_def.h
@@ -104,4 +104,17 @@ static inline void *nearest_obj(struct kmem_cache *cache, struct page *page,
return object;
}
+/*
+ * We want to avoid an expensive divide : (offset / cache->size)
+ * Using the fact that size is a constant for a particular cache,
+ * we can replace (offset / cache->size) by
+ * reciprocal_divide(offset, cache->reciprocal_buffer_size)
+ */
+static inline unsigned int obj_to_index(const struct kmem_cache *cache,
+ const struct page *page, void *obj)
+{
+ u32 offset = (obj - page->s_mem);
+ return reciprocal_divide(offset, cache->reciprocal_buffer_size);
+}
+
#endif /* _LINUX_SLAB_DEF_H */
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index 16158fe..8ceba9b 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -450,9 +450,6 @@ struct spi_controller {
#define SPI_MASTER_GPIO_SS BIT(5) /* GPIO CS must select slave */
- /* flag indicating this is a non-devres managed controller */
- bool devm_allocated;
-
/* flag indicating this is an SPI slave controller */
bool slave;
diff --git a/include/linux/stat.h b/include/linux/stat.h
index 765573d..528c4ba 100644
--- a/include/linux/stat.h
+++ b/include/linux/stat.h
@@ -33,7 +33,8 @@ struct kstat {
STATX_ATTR_IMMUTABLE | \
STATX_ATTR_APPEND | \
STATX_ATTR_NODUMP | \
- STATX_ATTR_ENCRYPTED \
+ STATX_ATTR_ENCRYPTED | \
+ STATX_ATTR_VERITY \
)/* Attrs corresponding to FS_*_FL flags */
u64 ino;
dev_t dev;
diff --git a/include/linux/string.h b/include/linux/string.h
index 1e0c442..9ba9a0f 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -209,6 +209,8 @@ int bprintf(u32 *bin_buf, size_t size, const char *fmt, ...) __printf(3, 4);
extern ssize_t memory_read_from_buffer(void *to, size_t count, loff_t *ppos,
const void *from, size_t available);
+int ptr_to_hashval(const void *ptr, unsigned long *hashval_out);
+
/**
* strstarts - does @str start with @prefix?
* @str: string to examine
diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index 3f529ad..71c6110 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -446,6 +446,7 @@ extern bool pm_get_wakeup_count(unsigned int *count, bool block);
extern bool pm_save_wakeup_count(unsigned int count);
extern void pm_wakep_autosleep_enabled(bool set);
extern void pm_print_active_wakeup_sources(void);
+extern void pm_get_active_wakeup_sources(char *pending_sources, size_t max);
extern void lock_system_sleep(void);
extern void unlock_system_sleep(void);
diff --git a/include/linux/swap.h b/include/linux/swap.h
index ee8f9f55..55dcc23 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -272,6 +272,8 @@ struct swap_info_struct {
*/
struct work_struct discard_work; /* discard worker */
struct swap_cluster_list discard_clusters; /* discard clusters list */
+ unsigned int write_pending;
+ unsigned int max_writes;
struct plist_node avail_lists[0]; /*
* entries in swap_avail_heads, one
* entry per node.
@@ -305,7 +307,7 @@ struct vma_swap_readahead {
/* linux/mm/workingset.c */
void *workingset_eviction(struct address_space *mapping, struct page *page);
-bool workingset_refault(void *shadow);
+void workingset_refault(struct page *page, void *shadow);
void workingset_activation(struct page *page);
/* Do not use directly, use workingset_lookup_update */
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 2ff814c..8e5b2c6d 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -850,6 +850,7 @@ asmlinkage long sys_clock_adjtime(clockid_t which_clock,
struct timex __user *tx);
asmlinkage long sys_syncfs(int fd);
asmlinkage long sys_setns(int fd, int nstype);
+asmlinkage long sys_pidfd_open(pid_t pid, unsigned int flags);
asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
unsigned int vlen, unsigned flags);
asmlinkage long sys_process_vm_readv(pid_t pid,
@@ -906,6 +907,9 @@ asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags,
unsigned mask, struct statx __user *buffer);
asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len,
int flags, uint32_t sig);
+asmlinkage long sys_pidfd_send_signal(int pidfd, int sig,
+ siginfo_t __user *info,
+ unsigned int flags);
/*
* Architecture-specific system calls
diff --git a/include/linux/task_io_accounting.h b/include/linux/task_io_accounting.h
index 6f6acce..bb26108 100644
--- a/include/linux/task_io_accounting.h
+++ b/include/linux/task_io_accounting.h
@@ -19,6 +19,8 @@ struct task_io_accounting {
u64 syscr;
/* # of write syscalls */
u64 syscw;
+ /* # of fsync syscalls */
+ u64 syscfs;
#endif /* CONFIG_TASK_XACCT */
#ifdef CONFIG_TASK_IO_ACCOUNTING
diff --git a/include/linux/task_io_accounting_ops.h b/include/linux/task_io_accounting_ops.h
index bb5498b..733ab62 100644
--- a/include/linux/task_io_accounting_ops.h
+++ b/include/linux/task_io_accounting_ops.h
@@ -97,6 +97,7 @@ static inline void task_chr_io_accounting_add(struct task_io_accounting *dst,
dst->wchar += src->wchar;
dst->syscr += src->syscr;
dst->syscw += src->syscw;
+ dst->syscfs += src->syscfs;
}
#else
static inline void task_chr_io_accounting_add(struct task_io_accounting *dst,
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index 5f4705f..c769773 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -29,9 +29,18 @@
/* Default weight of a bound cooling device */
#define THERMAL_WEIGHT_DEFAULT 0
+/* Max sensors that can be used for a single virtual thermalzone */
+#define THERMAL_MAX_VIRT_SENSORS 10
+
/* use value, which < 0K, to indicate an invalid/uninitialized temperature */
#define THERMAL_TEMP_INVALID -274000
+/*
+ * use a high value for low temp tracking zone,
+ * to indicate an invalid/uninitialized temperature
+ */
+#define THERMAL_TEMP_INVALID_LOW 274000
+
/* Unit conversion macros */
#define DECI_KELVIN_TO_CELSIUS(t) ({ \
long _t = (t); \
@@ -68,6 +77,9 @@ enum thermal_trip_type {
THERMAL_TRIP_PASSIVE,
THERMAL_TRIP_HOT,
THERMAL_TRIP_CRITICAL,
+ THERMAL_TRIP_CONFIGURABLE_HI,
+ THERMAL_TRIP_CONFIGURABLE_LOW,
+ THERMAL_TRIP_CRITICAL_LOW,
};
enum thermal_trend {
@@ -113,12 +125,19 @@ struct thermal_zone_device_ops {
enum thermal_trend *);
int (*notify) (struct thermal_zone_device *, int,
enum thermal_trip_type);
+ bool (*is_wakeable)(struct thermal_zone_device *);
+ int (*set_polling_delay)(struct thermal_zone_device *, int);
+ int (*set_passive_delay)(struct thermal_zone_device *, int);
};
struct thermal_cooling_device_ops {
int (*get_max_state) (struct thermal_cooling_device *, unsigned long *);
int (*get_cur_state) (struct thermal_cooling_device *, unsigned long *);
int (*set_cur_state) (struct thermal_cooling_device *, unsigned long);
+ int (*set_min_state)(struct thermal_cooling_device *cdev,
+ unsigned long target);
+ int (*get_min_state)(struct thermal_cooling_device *cdev,
+ unsigned long *target);
int (*get_requested_power)(struct thermal_cooling_device *,
struct thermal_zone_device *, u32 *);
int (*state2power)(struct thermal_cooling_device *,
@@ -139,6 +158,8 @@ struct thermal_cooling_device {
struct mutex lock; /* protect thermal_instances list */
struct list_head thermal_instances;
struct list_head node;
+ unsigned long sysfs_cur_state_req;
+ unsigned long sysfs_min_state_req;
};
struct thermal_attr {
@@ -239,6 +260,7 @@ struct thermal_governor {
void (*unbind_from_tz)(struct thermal_zone_device *tz);
int (*throttle)(struct thermal_zone_device *tz, int trip);
struct list_head governor_list;
+ int min_state_throttle;
};
/* Structure that holds binding parameters for a zone */
@@ -327,6 +349,12 @@ struct thermal_zone_params {
* Used by thermal zone drivers (default 0).
*/
int offset;
+
+ /*
+ * @tracks_low: Indicates that the thermal zone params are for
+ * temperatures falling below the thresholds.
+ */
+ bool tracks_low;
};
struct thermal_genl_event {
@@ -349,6 +377,8 @@ struct thermal_genl_event {
* temperature.
* @set_trip_temp: a pointer to a function that sets the trip temperature on
* hardware.
+ * @get_trip_temp: a pointer to a function that gets the trip temperature on
+ * hardware.
*/
struct thermal_zone_of_device_ops {
int (*get_temp)(void *, int *);
@@ -356,6 +386,7 @@ struct thermal_zone_of_device_ops {
int (*set_trips)(void *, int, int);
int (*set_emul_temp)(void *, int);
int (*set_trip_temp)(void *, int, int);
+ int (*get_trip_temp)(void *, int, int *);
};
/**
@@ -373,6 +404,40 @@ struct thermal_trip {
enum thermal_trip_type type;
};
+/* Different aggregation logic supported for virtual sensors */
+enum aggregation_logic {
+ VIRT_WEIGHTED_AVG,
+ VIRT_MAXIMUM,
+ VIRT_MINIMUM,
+ VIRT_COUNT_THRESHOLD,
+ VIRT_AGGREGATION_NR,
+};
+
+/*
+ * struct virtual_sensor_data - Data structure used to provide
+ * information about the virtual zone.
+ * @virt_zone_name - Virtual thermal zone name
+ * @num_sensors - Number of sensors this virtual zone uses to compute
+ * temperature
+ * @sensor_names - Array of sensor names
+ * @logic - Temperature aggregation logic to be used
+ * @coefficients - Coefficients to be used for weighted average logic
+ * @coefficient_ct - number of coefficients provided as input
+ * @avg_offset - offset value to be used for the weighted aggregation logic
+ * @avg_denominator - denominator value to be used for the weighted aggregation
+ * logic
+ */
+struct virtual_sensor_data {
+ int num_sensors;
+ char virt_zone_name[THERMAL_NAME_LENGTH];
+ char *sensor_names[THERMAL_MAX_VIRT_SENSORS];
+ enum aggregation_logic logic;
+ int coefficients[THERMAL_MAX_VIRT_SENSORS];
+ int coefficient_ct;
+ int avg_offset;
+ int avg_denominator;
+};
+
/* Function declarations */
#ifdef CONFIG_THERMAL_OF
struct thermal_zone_device *
@@ -385,6 +450,9 @@ struct thermal_zone_device *devm_thermal_zone_of_sensor_register(
const struct thermal_zone_of_device_ops *ops);
void devm_thermal_zone_of_sensor_unregister(struct device *dev,
struct thermal_zone_device *tz);
+struct thermal_zone_device *devm_thermal_of_virtual_sensor_register(
+ struct device *dev,
+ const struct virtual_sensor_data *sensor_data);
#else
static inline struct thermal_zone_device *
thermal_zone_of_sensor_register(struct device *dev, int id, void *data,
@@ -412,6 +480,14 @@ void devm_thermal_zone_of_sensor_unregister(struct device *dev,
{
}
+static inline
+struct thermal_zone_device *devm_thermal_of_virtual_sensor_register(
+ struct device *dev,
+ const struct virtual_sensor_data *sensor_data)
+{
+ return ERR_PTR(-ENODEV);
+}
+
#endif
#if IS_ENABLED(CONFIG_THERMAL)
@@ -440,15 +516,18 @@ int thermal_zone_unbind_cooling_device(struct thermal_zone_device *, int,
struct thermal_cooling_device *);
void thermal_zone_device_update(struct thermal_zone_device *,
enum thermal_notify_event);
+void thermal_zone_device_update_temp(struct thermal_zone_device *tz,
+ enum thermal_notify_event event, int temp);
void thermal_zone_set_trips(struct thermal_zone_device *);
-struct thermal_cooling_device *thermal_cooling_device_register(char *, void *,
- const struct thermal_cooling_device_ops *);
+struct thermal_cooling_device *thermal_cooling_device_register(const char *,
+ void *, const struct thermal_cooling_device_ops *);
struct thermal_cooling_device *
-thermal_of_cooling_device_register(struct device_node *np, char *, void *,
+thermal_of_cooling_device_register(struct device_node *np, const char *, void *,
const struct thermal_cooling_device_ops *);
void thermal_cooling_device_unregister(struct thermal_cooling_device *);
struct thermal_zone_device *thermal_zone_get_zone_by_name(const char *name);
+struct thermal_cooling_device *thermal_zone_get_cdev_by_name(const char *name);
int thermal_zone_get_temp(struct thermal_zone_device *tz, int *temp);
int thermal_zone_get_slope(struct thermal_zone_device *tz);
int thermal_zone_get_offset(struct thermal_zone_device *tz);
@@ -493,6 +572,10 @@ static inline int thermal_zone_unbind_cooling_device(
static inline void thermal_zone_device_update(struct thermal_zone_device *tz,
enum thermal_notify_event event)
{ }
+static inline void thermal_zone_device_update_temp(
+ struct thermal_zone_device *tz, enum thermal_notify_event event,
+ int temp)
+{ }
static inline void thermal_zone_set_trips(struct thermal_zone_device *tz)
{ }
static inline struct thermal_cooling_device *
@@ -509,6 +592,9 @@ static inline void thermal_cooling_device_unregister(
static inline struct thermal_zone_device *thermal_zone_get_zone_by_name(
const char *name)
{ return ERR_PTR(-ENODEV); }
+static inline struct thermal_cooling_device *thermal_zone_get_cdev_by_name(
+ const char *name)
+{ return ERR_PTR(-ENODEV); }
static inline int thermal_zone_get_temp(
struct thermal_zone_device *tz, int *temp)
{ return -ENODEV; }
diff --git a/include/linux/tick.h b/include/linux/tick.h
index 55388ab..9e99133 100644
--- a/include/linux/tick.h
+++ b/include/linux/tick.h
@@ -111,6 +111,8 @@ enum tick_dep_bits {
#define TICK_DEP_MASK_SCHED (1 << TICK_DEP_BIT_SCHED)
#define TICK_DEP_MASK_CLOCK_UNSTABLE (1 << TICK_DEP_BIT_CLOCK_UNSTABLE)
+extern void register_tick_sched_wakeup_callback(void (*cb)(void));
+
#ifdef CONFIG_NO_HZ_COMMON
extern bool tick_nohz_enabled;
extern bool tick_nohz_tick_stopped(void);
@@ -281,4 +283,5 @@ static inline void tick_nohz_task_switch(void)
__tick_nohz_task_switch();
}
+ktime_t *get_next_event_cpu(unsigned int cpu);
#endif
diff --git a/include/linux/time.h b/include/linux/time.h
index 5f3e499..47ed31f 100644
--- a/include/linux/time.h
+++ b/include/linux/time.h
@@ -109,4 +109,7 @@ static inline bool itimerspec64_valid(const struct itimerspec64 *its)
* Equivalent to !(time_before32(@t, @l) || time_after32(@t, @h)).
*/
#define time_between32(t, l, h) ((u32)(h) - (u32)(l) >= (u32)(t) - (u32)(l))
+
+# include <vdso/time.h>
+
#endif
diff --git a/include/linux/time32.h b/include/linux/time32.h
index d1ae43c..00363b4 100644
--- a/include/linux/time32.h
+++ b/include/linux/time32.h
@@ -11,6 +11,10 @@
#include <linux/time64.h>
+#include <linux/timex.h>
+
+#include <vdso/time32.h>
+
#define TIME_T_MAX (time_t)((1UL << ((sizeof(time_t) << 3) - 1)) - 1)
#if __BITS_PER_LONG == 64
@@ -212,9 +216,6 @@ extern struct __kernel_old_timeval ns_to_kernel_old_timeval(s64 nsec);
* the compat code so it can be shared between 32-bit and 64-bit builds
* both of which provide compatibility with old 32-bit tasks.
*/
-#define old_time32_t compat_time_t
-#define old_timeval32 compat_timeval
-#define old_timespec32 compat_timespec
#define old_itimerspec32 compat_itimerspec
#define ns_to_old_timeval32 ns_to_compat_timeval
#define get_old_itimerspec32 get_compat_itimerspec64
diff --git a/include/linux/time64.h b/include/linux/time64.h
index 8dbdf6ca..6e27f38 100644
--- a/include/linux/time64.h
+++ b/include/linux/time64.h
@@ -3,6 +3,7 @@
#define _LINUX_TIME64_H
#include <linux/math64.h>
+#include <vdso/time64.h>
typedef __s64 time64_t;
typedef __u64 timeu64_t;
@@ -27,15 +28,6 @@ struct itimerspec64 {
struct timespec64 it_value;
};
-/* Parameters used to convert the timespec values: */
-#define MSEC_PER_SEC 1000L
-#define USEC_PER_MSEC 1000L
-#define NSEC_PER_USEC 1000L
-#define NSEC_PER_MSEC 1000000L
-#define USEC_PER_SEC 1000000L
-#define NSEC_PER_SEC 1000000000L
-#define FSEC_PER_SEC 1000000000000000LL
-
/* Located here for timespec[64]_valid_strict */
#define TIME64_MAX ((s64)~((u64)1 << 63))
#define KTIME_MAX ((s64)~((u64)1 << 63))
diff --git a/include/linux/timekeeper_internal.h b/include/linux/timekeeper_internal.h
index 7acb953..84ff284 100644
--- a/include/linux/timekeeper_internal.h
+++ b/include/linux/timekeeper_internal.h
@@ -57,6 +57,7 @@ struct tk_read_base {
* @cs_was_changed_seq: The sequence number of clocksource change events
* @next_leap_ktime: CLOCK_MONOTONIC time value of a pending leap-second
* @raw_sec: CLOCK_MONOTONIC_RAW time in seconds
+ * @monotonic_to_boot: CLOCK_MONOTONIC to CLOCK_BOOTTIME offset
* @cycle_interval: Number of clock cycles in one NTP interval
* @xtime_interval: Number of clock shifted nano seconds in one NTP
* interval.
@@ -84,6 +85,9 @@ struct tk_read_base {
*
* wall_to_monotonic is no longer the boot time, getboottime must be
* used instead.
+ *
+ * @monotonic_to_boottime is a timespec64 representation of @offs_boot to
+ * accelerate the VDSO update for CLOCK_BOOTTIME.
*/
struct timekeeper {
struct tk_read_base tkr_mono;
@@ -99,6 +103,7 @@ struct timekeeper {
u8 cs_was_changed_seq;
ktime_t next_leap_ktime;
u64 raw_sec;
+ struct timespec64 monotonic_to_boot;
/* The following members are for timekeeping internal use */
u64 cycle_interval;
diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h
index a5a3cfc..992fa3d 100644
--- a/include/linux/timekeeping.h
+++ b/include/linux/timekeeping.h
@@ -113,6 +113,34 @@ static inline ktime_t ktime_get_coarse_clocktai(void)
return ktime_get_coarse_with_offset(TK_OFFS_TAI);
}
+static inline ktime_t ktime_get_coarse(void)
+{
+ struct timespec64 ts;
+
+ ktime_get_coarse_ts64(&ts);
+ return timespec64_to_ktime(ts);
+}
+
+static inline u64 ktime_get_coarse_ns(void)
+{
+ return ktime_to_ns(ktime_get_coarse());
+}
+
+static inline u64 ktime_get_coarse_real_ns(void)
+{
+ return ktime_to_ns(ktime_get_coarse_real());
+}
+
+static inline u64 ktime_get_coarse_boottime_ns(void)
+{
+ return ktime_to_ns(ktime_get_coarse_boottime());
+}
+
+static inline u64 ktime_get_coarse_clocktai_ns(void)
+{
+ return ktime_to_ns(ktime_get_coarse_clocktai());
+}
+
/**
* ktime_mono_to_real - Convert monotonic time to clock realtime
*/
diff --git a/include/linux/timer.h b/include/linux/timer.h
index 7b066fd..611dd95 100644
--- a/include/linux/timer.h
+++ b/include/linux/timer.h
@@ -7,6 +7,7 @@
#include <linux/stddef.h>
#include <linux/debugobjects.h>
#include <linux/stringify.h>
+#include <linux/android_kabi.h>
struct timer_list {
/*
@@ -21,6 +22,9 @@ struct timer_list {
#ifdef CONFIG_LOCKDEP
struct lockdep_map lockdep_map;
#endif
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
};
#ifdef CONFIG_LOCKDEP
diff --git a/include/linux/trace_seq.h b/include/linux/trace_seq.h
index 6db2574..6609b39a 100644
--- a/include/linux/trace_seq.h
+++ b/include/linux/trace_seq.h
@@ -12,7 +12,7 @@
*/
struct trace_seq {
- char buffer[PAGE_SIZE];
+ unsigned char buffer[PAGE_SIZE];
struct seq_buf seq;
int full;
};
@@ -51,7 +51,7 @@ static inline int trace_seq_used(struct trace_seq *s)
* that is about to be written to and then return the result
* of that write.
*/
-static inline char *
+static inline unsigned char *
trace_seq_buffer_ptr(struct trace_seq *s)
{
return s->buffer + seq_buf_used(&s->seq);
diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h
index db9b0dd..1a5b23a 100644
--- a/include/linux/uaccess.h
+++ b/include/linux/uaccess.h
@@ -297,6 +297,8 @@ extern long strnlen_unsafe_user(const void __user *unsafe_addr, long count);
#define user_access_end() do { } while (0)
#define unsafe_get_user(x, ptr, err) do { if (unlikely(__get_user(x, ptr))) goto err; } while (0)
#define unsafe_put_user(x, ptr, err) do { if (unlikely(__put_user(x, ptr))) goto err; } while (0)
+static inline unsigned long user_access_save(void) { return 0UL; }
+static inline void user_access_restore(unsigned long flags) { }
#endif
#ifdef CONFIG_HARDENED_USERCOPY
diff --git a/include/linux/unicode.h b/include/linux/unicode.h
new file mode 100644
index 0000000..74484d4
--- /dev/null
+++ b/include/linux/unicode.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_UNICODE_H
+#define _LINUX_UNICODE_H
+
+#include <linux/init.h>
+#include <linux/dcache.h>
+
+struct unicode_map {
+ const char *charset;
+ int version;
+};
+
+int utf8_validate(const struct unicode_map *um, const struct qstr *str);
+
+int utf8_strncmp(const struct unicode_map *um,
+ const struct qstr *s1, const struct qstr *s2);
+
+int utf8_strncasecmp(const struct unicode_map *um,
+ const struct qstr *s1, const struct qstr *s2);
+int utf8_strncasecmp_folded(const struct unicode_map *um,
+ const struct qstr *cf,
+ const struct qstr *s1);
+
+int utf8_normalize(const struct unicode_map *um, const struct qstr *str,
+ unsigned char *dest, size_t dlen);
+
+int utf8_casefold(const struct unicode_map *um, const struct qstr *str,
+ unsigned char *dest, size_t dlen);
+
+int utf8_casefold_hash(const struct unicode_map *um, const void *salt,
+ struct qstr *str);
+
+struct unicode_map *utf8_load(const char *version);
+void utf8_unload(struct unicode_map *um);
+
+#endif /* _LINUX_UNICODE_H */
diff --git a/include/linux/usb.h b/include/linux/usb.h
index ff010d1..75d7cc5 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -22,6 +22,7 @@
#include <linux/sched.h> /* for current && schedule_timeout */
#include <linux/mutex.h> /* for struct mutex */
#include <linux/pm_runtime.h> /* for runtime PM */
+#include <linux/android_kabi.h>
struct usb_device;
struct usb_driver;
@@ -257,6 +258,11 @@ struct usb_interface {
struct device dev; /* interface specific device info */
struct device *usb_dev;
struct work_struct reset_ws; /* for resets in atomic context */
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
#define to_usb_interface(d) container_of(d, struct usb_interface, dev)
@@ -402,6 +408,13 @@ struct usb_host_bos {
struct usb_ssp_cap_descriptor *ssp_cap;
struct usb_ss_container_id_descriptor *ss_id;
struct usb_ptm_cap_descriptor *ptm_cap;
+ struct usb_config_summary_descriptor *config_summary;
+ unsigned int num_config_summary_desc;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
int __usb_get_extra_descriptor(char *buffer, unsigned size,
@@ -466,6 +479,20 @@ struct usb_bus {
struct mon_bus *mon_bus; /* non-null when associated */
int monitored; /* non-zero when monitored */
#endif
+ unsigned skip_resume:1; /* All USB devices are brought into full
+ * power state after system resume. It
+ * is desirable for some buses to keep
+ * their devices in suspend state even
+ * after system resume. The devices
+ * are resumed later when a remote
+ * wakeup is detected or an interface
+ * driver starts I/O.
+ */
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
struct usb_dev_state;
@@ -707,6 +734,11 @@ struct usb_device {
unsigned lpm_disable_count;
u16 hub_delay;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
#define to_usb_device(d) container_of(d, struct usb_device, dev)
@@ -824,6 +856,19 @@ static inline bool usb_device_no_sg_constraint(struct usb_device *udev)
/* for drivers using iso endpoints */
extern int usb_get_current_frame_number(struct usb_device *usb_dev);
+extern int usb_sec_event_ring_setup(struct usb_device *dev,
+ unsigned int intr_num);
+extern int usb_sec_event_ring_cleanup(struct usb_device *dev,
+ unsigned int intr_num);
+
+extern phys_addr_t usb_get_sec_event_ring_phys_addr(
+ struct usb_device *dev, unsigned int intr_num, dma_addr_t *dma);
+extern phys_addr_t usb_get_xfer_ring_phys_addr(struct usb_device *dev,
+ struct usb_host_endpoint *ep, dma_addr_t *dma);
+extern int usb_get_controller_id(struct usb_device *dev);
+
+extern int usb_stop_endpoint(struct usb_device *dev,
+ struct usb_host_endpoint *ep);
/* Sets up a group of bulk endpoints to support multiple stream IDs. */
extern int usb_alloc_streams(struct usb_interface *interface,
@@ -1203,6 +1248,11 @@ struct usb_driver {
unsigned int supports_autosuspend:1;
unsigned int disable_hub_initiated_lpm:1;
unsigned int soft_unbind:1;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
#define to_usb_driver(d) container_of(d, struct usb_driver, drvwrap.driver)
@@ -1577,6 +1627,10 @@ struct urb {
usb_complete_t complete; /* (in) completion routine */
struct usb_iso_packet_descriptor iso_frame_desc[0];
/* (in) ISO ONLY */
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
/* ----------------------------------------------------------------------- */
@@ -1990,8 +2044,11 @@ static inline int usb_translate_errors(int error_code)
#define USB_DEVICE_REMOVE 0x0002
#define USB_BUS_ADD 0x0003
#define USB_BUS_REMOVE 0x0004
+#define USB_BUS_DIED 0x0005
extern void usb_register_notify(struct notifier_block *nb);
extern void usb_unregister_notify(struct notifier_block *nb);
+extern void usb_register_atomic_notify(struct notifier_block *nb);
+extern void usb_unregister_atomic_notify(struct notifier_block *nb);
/* debugfs stuff */
extern struct dentry *usb_debug_root;
diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h
index 2040696..e8362991 100644
--- a/include/linux/usb/composite.h
+++ b/include/linux/usb/composite.h
@@ -118,6 +118,7 @@ struct usb_os_desc_table {
/**
* struct usb_function - describes one function of a configuration
* @name: For diagnostics, identifies the function.
+ * @intf_id: Interface ID
* @strings: tables of strings, keyed by identifiers assigned during bind()
* and by language IDs provided in control requests
* @fs_descriptors: Table of full (or low) speed descriptors, using interface and
@@ -163,6 +164,13 @@ struct usb_os_desc_table {
* GetStatus() request when the recipient is Interface.
* @func_suspend: callback to be called when
* SetFeature(FUNCTION_SUSPEND) is reseived
+ * @func_is_suspended: Tells whether the function is currently in
+ * Function Suspend state (used in Super Speed mode only).
+ * @func_wakeup_allowed: Tells whether Function Remote Wakeup has been allowed
+ * by the USB host (used in Super Speed mode only).
+ * @func_wakeup_pending: Marks that the function has issued a Function Wakeup
+ * while the USB bus was suspended and therefore a Function Wakeup
+ * notification needs to be sent once the USB bus is resumed.
*
* A single USB function uses one or more interfaces, and should in most
* cases support operation at both full and high speeds. Each function is
@@ -190,6 +198,7 @@ struct usb_os_desc_table {
struct usb_function {
const char *name;
+ int intf_id;
struct usb_gadget_strings **strings;
struct usb_descriptor_header **fs_descriptors;
struct usb_descriptor_header **hs_descriptors;
@@ -233,6 +242,9 @@ struct usb_function {
int (*get_status)(struct usb_function *);
int (*func_suspend)(struct usb_function *,
u8 suspend_opt);
+ unsigned func_is_suspended:1;
+ unsigned func_wakeup_allowed:1;
+ unsigned func_wakeup_pending:1;
/* private: */
/* internals */
struct list_head list;
@@ -248,6 +260,9 @@ int usb_function_deactivate(struct usb_function *);
int usb_function_activate(struct usb_function *);
int usb_interface_id(struct usb_configuration *, struct usb_function *);
+int usb_func_wakeup(struct usb_function *func);
+
+int usb_get_func_interface_id(struct usb_function *func);
int config_ep_by_speed_and_alt(struct usb_gadget *g, struct usb_function *f,
struct usb_ep *_ep, u8 alt);
@@ -590,6 +605,7 @@ struct usb_function_instance {
struct config_group group;
struct list_head cfs_list;
struct usb_function_driver *fd;
+ struct usb_function *f;
int (*set_inst_name)(struct usb_function_instance *inst,
const char *name);
void (*free_func_inst)(struct usb_function_instance *inst);
diff --git a/include/linux/usb/f_accessory.h b/include/linux/usb/f_accessory.h
new file mode 100644
index 0000000..ebe3c4d
--- /dev/null
+++ b/include/linux/usb/f_accessory.h
@@ -0,0 +1,23 @@
+/*
+ * Gadget Function Driver for Android USB accessories
+ *
+ * Copyright (C) 2011 Google, Inc.
+ * Author: Mike Lockwood <lockwood@android.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __LINUX_USB_F_ACCESSORY_H
+#define __LINUX_USB_F_ACCESSORY_H
+
+#include <uapi/linux/usb/f_accessory.h>
+
+#endif /* __LINUX_USB_F_ACCESSORY_H */
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index e5cd84a..16eab40 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -25,6 +25,7 @@
#include <linux/types.h>
#include <linux/workqueue.h>
#include <linux/usb/ch9.h>
+#include <linux/android_kabi.h>
#define UDC_TRACE_STR_MAX 512
@@ -73,6 +74,7 @@ struct usb_ep;
* Note that for writes (IN transfers) some data bytes may still
* reside in a device-side FIFO when the request is reported as
* complete.
+ * @udc_priv: Vendor private data in usage by the UDC.
*
* These are allocated/freed through the endpoint they're used with. The
* hardware's driver can add extra per-request data to the memory it returns,
@@ -114,6 +116,56 @@ struct usb_request {
int status;
unsigned actual;
+ unsigned int udc_priv;
+};
+
+/*
+ * @buf_base_addr: Base pointer to buffer allocated for each GSI enabled EP.
+ * TRBs point to buffers that are split from this pool. The size of the
+ * buffer is num_bufs times buf_len. num_bufs and buf_len are determined
+ based on desired performance and aggregation size.
+ * @dma: DMA address corresponding to buf_base_addr.
+ * @num_bufs: Number of buffers associated with the GSI enabled EP. This
+ * corresponds to the number of non-zlp TRBs allocated for the EP.
+ * The value is determined based on desired performance for the EP.
+ * @buf_len: Size of each individual buffer is determined based on aggregation
+ * negotiated as per the protocol. In case of no aggregation supported by
+ * the protocol, we use default values.
+ * @db_reg_phs_addr_lsb: IPA channel doorbell register's physical address LSB
+ * @mapped_db_reg_phs_addr_lsb: doorbell LSB IOVA address mapped with IOMMU
+ * @db_reg_phs_addr_msb: IPA channel doorbell register's physical address MSB
+ * @sgt_trb_xfer_ring: USB TRB ring related sgtable entries
+ * @sgt_data_buff: Data buffer related sgtable entries
+ * @dev: pointer to the DMA-capable dwc device
+ */
+struct usb_gsi_request {
+ void *buf_base_addr;
+ dma_addr_t dma;
+ size_t num_bufs;
+ size_t buf_len;
+ u32 db_reg_phs_addr_lsb;
+ dma_addr_t mapped_db_reg_phs_addr_lsb;
+ u32 db_reg_phs_addr_msb;
+ struct sg_table sgt_trb_xfer_ring;
+ struct sg_table sgt_data_buff;
+ struct device *dev;
+};
+
+enum gsi_ep_op {
+ GSI_EP_OP_CONFIG = 0,
+ GSI_EP_OP_STARTXFER,
+ GSI_EP_OP_STORE_DBL_INFO,
+ GSI_EP_OP_ENABLE_GSI,
+ GSI_EP_OP_UPDATEXFER,
+ GSI_EP_OP_RING_DB,
+ GSI_EP_OP_ENDXFER,
+ GSI_EP_OP_GET_CH_INFO,
+ GSI_EP_OP_GET_XFER_IDX,
+ GSI_EP_OP_PREPARE_TRBS,
+ GSI_EP_OP_FREE_TRBS,
+ GSI_EP_OP_SET_CLR_BLOCK_DBL,
+ GSI_EP_OP_CHECK_FOR_SUSPEND,
+ GSI_EP_OP_DISABLE,
};
/*-------------------------------------------------------------------------*/
@@ -144,6 +196,9 @@ struct usb_ep_ops {
int (*fifo_status) (struct usb_ep *ep);
void (*fifo_flush) (struct usb_ep *ep);
+ int (*gsi_ep_op) (struct usb_ep *ep, void *op_data,
+ enum gsi_ep_op op);
+
};
/**
@@ -184,6 +239,11 @@ struct usb_ep_caps {
.dir_out = !!(_dir & USB_EP_CAPS_DIR_OUT), \
}
+enum ep_type {
+ EP_TYPE_NORMAL = 0,
+ EP_TYPE_GSI,
+};
+
/**
* struct usb_ep - device side representation of USB endpoint
* @name:identifier for the endpoint, such as "ep-a" or "ep9in-bulk"
@@ -209,6 +269,11 @@ struct usb_ep_caps {
* enabled and remains valid until the endpoint is disabled.
* @comp_desc: In case of SuperSpeed support, this is the endpoint companion
* descriptor that is used to configure the endpoint
+ * @ep_type: Used to specify type of EP eg. normal vs h/w accelerated.
+ * @ep_num: Used EP number
+ * @ep_intr_num: Interrupter number for EP.
+ * @endless: In case where endless transfer is being initiated, this is set
+ * to disable usb event interrupt for few events.
*
* the bus controller driver lists all the general purpose endpoints in
* gadget->ep_list. the control endpoint (gadget->ep0) is not in that list,
@@ -232,6 +297,10 @@ struct usb_ep {
u8 address;
const struct usb_endpoint_descriptor *desc;
const struct usb_ss_ep_comp_descriptor *comp_desc;
+ enum ep_type ep_type;
+ u8 ep_num;
+ u8 ep_intr_num;
+ bool endless;
};
/*-------------------------------------------------------------------------*/
@@ -249,6 +318,8 @@ int usb_ep_clear_halt(struct usb_ep *ep);
int usb_ep_set_wedge(struct usb_ep *ep);
int usb_ep_fifo_status(struct usb_ep *ep);
void usb_ep_fifo_flush(struct usb_ep *ep);
+int usb_gsi_ep_op(struct usb_ep *ep,
+ struct usb_gsi_request *req, enum gsi_ep_op op);
#else
static inline void usb_ep_set_maxpacket_limit(struct usb_ep *ep,
unsigned maxpacket_limit)
@@ -278,6 +349,10 @@ static inline int usb_ep_fifo_status(struct usb_ep *ep)
{ return 0; }
static inline void usb_ep_fifo_flush(struct usb_ep *ep)
{ }
+
+static inline int usb_gsi_ep_op(struct usb_ep *ep,
+ struct usb_gsi_request *req, enum gsi_ep_op op)
+{ return 0; }
#endif /* USB_GADGET */
/*-------------------------------------------------------------------------*/
@@ -300,6 +375,7 @@ struct usb_udc;
struct usb_gadget_ops {
int (*get_frame)(struct usb_gadget *);
int (*wakeup)(struct usb_gadget *);
+ int (*func_wakeup)(struct usb_gadget *g, int interface_id);
int (*set_selfpowered) (struct usb_gadget *, int is_selfpowered);
int (*vbus_session) (struct usb_gadget *, int is_active);
int (*vbus_draw) (struct usb_gadget *, unsigned mA);
@@ -314,6 +390,7 @@ struct usb_gadget_ops {
struct usb_ep *(*match_ep)(struct usb_gadget *,
struct usb_endpoint_descriptor *,
struct usb_ss_ep_comp_descriptor *);
+ int (*restart)(struct usb_gadget *g);
};
/**
@@ -365,6 +442,8 @@ struct usb_gadget_ops {
* @connected: True if gadget is connected.
* @lpm_capable: If the gadget max_speed is FULL or HIGH, this flag
* indicates that it supports LPM as per the LPM ECN & errata.
+ * @remote_wakeup: Indicates if the host has enabled the remote_wakeup
+ * feature.
*
* Gadgets have a mostly-portable "gadget driver" implementing device
* functions, handling all usb configurations and interfaces. Gadget
@@ -419,6 +498,12 @@ struct usb_gadget {
unsigned deactivated:1;
unsigned connected:1;
unsigned lpm_capable:1;
+ unsigned remote_wakeup:1;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
#define work_to_gadget(w) (container_of((w), struct usb_gadget, work))
@@ -552,6 +637,7 @@ static inline int gadget_is_otg(struct usb_gadget *g)
#if IS_ENABLED(CONFIG_USB_GADGET)
int usb_gadget_frame_number(struct usb_gadget *gadget);
int usb_gadget_wakeup(struct usb_gadget *gadget);
+int usb_gadget_func_wakeup(struct usb_gadget *gadget, int interface_id);
int usb_gadget_set_selfpowered(struct usb_gadget *gadget);
int usb_gadget_clear_selfpowered(struct usb_gadget *gadget);
int usb_gadget_vbus_connect(struct usb_gadget *gadget);
@@ -566,6 +652,9 @@ static inline int usb_gadget_frame_number(struct usb_gadget *gadget)
{ return 0; }
static inline int usb_gadget_wakeup(struct usb_gadget *gadget)
{ return 0; }
+static inline int usb_gadget_func_wakeup(struct usb_gadget *gadget,
+ int interface_id)
+{ return 0; }
static inline int usb_gadget_set_selfpowered(struct usb_gadget *gadget)
{ return 0; }
static inline int usb_gadget_clear_selfpowered(struct usb_gadget *gadget)
@@ -804,6 +893,11 @@ int usb_otg_descriptor_init(struct usb_gadget *gadget,
struct usb_descriptor_header *otg_desc);
/*-------------------------------------------------------------------------*/
+int usb_func_ep_queue(struct usb_function *func, struct usb_ep *ep,
+ struct usb_request *req, gfp_t gfp_flags);
+
+/*-------------------------------------------------------------------------*/
+
/* utility to simplify map/unmap of usb_requests to/from DMA */
#ifdef CONFIG_HAS_DMA
@@ -883,5 +977,8 @@ extern struct usb_ep *usb_ep_autoconfig_ss(struct usb_gadget *,
extern void usb_ep_autoconfig_release(struct usb_ep *);
extern void usb_ep_autoconfig_reset(struct usb_gadget *);
+extern struct usb_ep *usb_ep_autoconfig_by_name(struct usb_gadget *gadget,
+ struct usb_endpoint_descriptor *desc,
+ const char *ep_name);
#endif /* __LINUX_USB_GADGET_H */
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index 97e2dde..7a17449 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -25,6 +25,7 @@
#include <linux/rwsem.h>
#include <linux/interrupt.h>
#include <linux/idr.h>
+#include <linux/android_kabi.h>
#define MAX_TOPO_LEVEL 6
@@ -217,6 +218,11 @@ struct usb_hcd {
* (ohci 32, uhci 1024, ehci 256/512/1024).
*/
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
+
/* The HC driver's private data is stored at the end of
* this structure.
*/
@@ -407,6 +413,22 @@ struct hc_driver {
/* Call for power on/off the port if necessary */
int (*port_power)(struct usb_hcd *hcd, int portnum, bool enable);
+ int (*sec_event_ring_setup)(struct usb_hcd *hcd, unsigned int intr_num);
+ int (*sec_event_ring_cleanup)(struct usb_hcd *hcd,
+ unsigned int intr_num);
+ phys_addr_t (*get_sec_event_ring_phys_addr)(struct usb_hcd *hcd,
+ unsigned int intr_num, dma_addr_t *dma);
+ phys_addr_t (*get_xfer_ring_phys_addr)(struct usb_hcd *hcd,
+ struct usb_device *udev, struct usb_host_endpoint *ep,
+ dma_addr_t *dma);
+ int (*get_core_id)(struct usb_hcd *hcd);
+ int (*stop_endpoint)(struct usb_hcd *hcd, struct usb_device *udev,
+ struct usb_host_endpoint *ep);
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
static inline int hcd_giveback_urb_in_bh(struct usb_hcd *hcd)
@@ -445,6 +467,17 @@ extern int usb_hcd_alloc_bandwidth(struct usb_device *udev,
struct usb_host_interface *old_alt,
struct usb_host_interface *new_alt);
extern int usb_hcd_get_frame_number(struct usb_device *udev);
+extern int usb_hcd_sec_event_ring_setup(struct usb_device *udev,
+ unsigned int intr_num);
+extern int usb_hcd_sec_event_ring_cleanup(struct usb_device *udev,
+ unsigned int intr_num);
+extern phys_addr_t usb_hcd_get_sec_event_ring_phys_addr(
+ struct usb_device *udev, unsigned int intr_num, dma_addr_t *dma);
+extern phys_addr_t usb_hcd_get_xfer_ring_phys_addr(
+ struct usb_device *udev, struct usb_host_endpoint *ep, dma_addr_t *dma);
+extern int usb_hcd_get_controller_id(struct usb_device *udev);
+extern int usb_hcd_stop_endpoint(struct usb_device *udev,
+ struct usb_host_endpoint *ep);
struct usb_hcd *__usb_create_hcd(const struct hc_driver *driver,
struct device *sysdev, struct device *dev, const char *bus_name,
@@ -550,6 +583,11 @@ struct usb_tt {
spinlock_t lock;
struct list_head clear_list; /* of usb_tt_clear */
struct work_struct clear_work;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
struct usb_tt_clear {
diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h
index 69f1b63..5113ab6 100644
--- a/include/linux/usb/otg.h
+++ b/include/linux/usb/otg.h
@@ -118,6 +118,7 @@ enum usb_dr_mode {
USB_DR_MODE_HOST,
USB_DR_MODE_PERIPHERAL,
USB_DR_MODE_OTG,
+ USB_DR_MODE_DRD,
};
/**
diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h
index e4de6bc..b1f7d2e 100644
--- a/include/linux/usb/phy.h
+++ b/include/linux/usb/phy.h
@@ -15,6 +15,17 @@
#include <linux/usb.h>
#include <uapi/linux/usb/charger.h>
+#define ENABLE_DP_MANUAL_PULLUP BIT(0)
+#define ENABLE_SECONDARY_PHY BIT(1)
+#define PHY_HOST_MODE BIT(2)
+#define PHY_CHARGER_CONNECTED BIT(3)
+#define PHY_VBUS_VALID_OVERRIDE BIT(4)
+#define DEVICE_IN_SS_MODE BIT(5)
+#define PHY_LANE_A BIT(6)
+#define PHY_LANE_B BIT(7)
+#define PHY_HSFS_MODE BIT(8)
+#define PHY_LS_MODE BIT(9)
+
enum usb_phy_interface {
USBPHY_INTERFACE_MODE_UNKNOWN,
USBPHY_INTERFACE_MODE_UTMI,
@@ -37,6 +48,8 @@ enum usb_phy_type {
USB_PHY_TYPE_UNDEFINED,
USB_PHY_TYPE_USB2,
USB_PHY_TYPE_USB3,
+ USB_PHY_TYPE_USB3_OR_DP,
+ USB_PHY_TYPE_USB3_AND_DP,
};
/* OTG defines lots of enumeration states before device reset */
@@ -47,6 +60,7 @@ enum usb_otg_state {
OTG_STATE_B_IDLE,
OTG_STATE_B_SRP_INIT,
OTG_STATE_B_PERIPHERAL,
+ OTG_STATE_B_SUSPEND,
/* extra dual-role default-b states */
OTG_STATE_B_WAIT_ACON,
@@ -155,6 +169,10 @@ struct usb_phy {
* manually detect the charger type.
*/
enum usb_charger_type (*charger_detect)(struct usb_phy *x);
+
+ /* reset the PHY clocks */
+ int (*reset)(struct usb_phy *x);
+ int (*drive_dp_pulse)(struct usb_phy *x, unsigned int pulse_width);
};
/* for board-specific init logic */
@@ -213,6 +231,24 @@ usb_phy_vbus_off(struct usb_phy *x)
return x->set_vbus(x, false);
}
+static inline int
+usb_phy_reset(struct usb_phy *x)
+{
+ if (x && x->reset)
+ return x->reset(x);
+
+ return 0;
+}
+
+static inline int
+usb_phy_drive_dp_pulse(struct usb_phy *x, unsigned int pulse_width)
+{
+ if (x && x->drive_dp_pulse)
+ return x->drive_dp_pulse(x, pulse_width);
+
+ return 0;
+}
+
/* for usb host and peripheral controller drivers */
#if IS_ENABLED(CONFIG_USB_PHY)
extern struct usb_phy *usb_get_phy(enum usb_phy_type type);
diff --git a/include/linux/usb/typec.h b/include/linux/usb/typec.h
index 7df4eca..27a6fc7 100644
--- a/include/linux/usb/typec.h
+++ b/include/linux/usb/typec.h
@@ -74,6 +74,7 @@ enum typec_orientation {
* @id_header: ID Header VDO
* @cert_stat: Cert Stat VDO
* @product: Product VDO
+ * @product_type: Product type VDO
*
* USB power delivery Discover Identity command response data.
*
@@ -84,6 +85,7 @@ struct usb_pd_identity {
u32 id_header;
u32 cert_stat;
u32 product;
+ u32 product_type;
};
int typec_partner_set_identity(struct typec_partner *partner);
diff --git a/include/linux/usb/typec_mux.h b/include/linux/usb/typec_mux.h
index 79293f6..873ace5 100644
--- a/include/linux/usb/typec_mux.h
+++ b/include/linux/usb/typec_mux.h
@@ -3,53 +3,48 @@
#ifndef __USB_TYPEC_MUX
#define __USB_TYPEC_MUX
-#include <linux/list.h>
#include <linux/usb/typec.h>
struct device;
+struct typec_mux;
+struct typec_switch;
+struct fwnode_handle;
-/**
- * struct typec_switch - USB Type-C cable orientation switch
- * @dev: Switch device
- * @entry: List entry
- * @set: Callback to the driver for setting the orientation
- *
- * USB Type-C pin flipper switch routing the correct data pairs from the
- * connector to the USB controller depending on the orientation of the cable
- * plug.
- */
-struct typec_switch {
- struct device *dev;
- struct list_head entry;
+typedef int (*typec_switch_set_fn_t)(struct typec_switch *sw,
+ enum typec_orientation orientation);
- int (*set)(struct typec_switch *sw, enum typec_orientation orientation);
-};
-
-/**
- * struct typec_switch - USB Type-C connector pin mux
- * @dev: Mux device
- * @entry: List entry
- * @set: Callback to the driver for setting the state of the mux
- *
- * Pin Multiplexer/DeMultiplexer switch routing the USB Type-C connector pins to
- * different components depending on the requested mode of operation. Used with
- * Accessory/Alternate modes.
- */
-struct typec_mux {
- struct device *dev;
- struct list_head entry;
-
- int (*set)(struct typec_mux *mux, int state);
+struct typec_switch_desc {
+ struct fwnode_handle *fwnode;
+ typec_switch_set_fn_t set;
+ void *drvdata;
};
struct typec_switch *typec_switch_get(struct device *dev);
void typec_switch_put(struct typec_switch *sw);
-int typec_switch_register(struct typec_switch *sw);
+struct typec_switch *
+typec_switch_register(struct device *parent,
+ const struct typec_switch_desc *desc);
void typec_switch_unregister(struct typec_switch *sw);
-struct typec_mux *typec_mux_get(struct device *dev, const char *name);
+void typec_switch_set_drvdata(struct typec_switch *sw, void *data);
+void *typec_switch_get_drvdata(struct typec_switch *sw);
+
+typedef int (*typec_mux_set_fn_t)(struct typec_mux *mux, int state);
+
+struct typec_mux_desc {
+ struct fwnode_handle *fwnode;
+ typec_mux_set_fn_t set;
+ void *drvdata;
+};
+
+struct typec_mux *
+typec_mux_get(struct device *dev, const struct typec_altmode_desc *desc);
void typec_mux_put(struct typec_mux *mux);
-int typec_mux_register(struct typec_mux *mux);
+struct typec_mux *
+typec_mux_register(struct device *parent, const struct typec_mux_desc *desc);
void typec_mux_unregister(struct typec_mux *mux);
+void typec_mux_set_drvdata(struct typec_mux *mux, void *data);
+void *typec_mux_get_drvdata(struct typec_mux *mux);
+
#endif /* __USB_TYPEC_MUX */
diff --git a/include/linux/usb/usbnet.h b/include/linux/usb/usbnet.h
index 452ca06..dd93df9 100644
--- a/include/linux/usb/usbnet.h
+++ b/include/linux/usb/usbnet.h
@@ -23,6 +23,8 @@
#ifndef __LINUX_USB_USBNET_H
#define __LINUX_USB_USBNET_H
+#include <linux/android_kabi.h>
+
/* interface from usbnet core to each USB networking link we handle */
struct usbnet {
/* housekeeping */
@@ -85,6 +87,11 @@ struct usbnet {
# define EVENT_NO_IP_ALIGN 13
u32 rx_speed; /* in bps - NOT Mbps */
u32 tx_speed; /* in bps - NOT Mbps */
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
static inline struct usb_driver *driver_of(struct usb_interface *intf)
@@ -174,6 +181,9 @@ struct driver_info {
int out; /* tx endpoint */
unsigned long data; /* Misc driver specific data */
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
};
/* Minidrivers are just drivers using the "usbnet" core as a powerful
diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
index d6b74b9..c1de115 100644
--- a/include/linux/user_namespace.h
+++ b/include/linux/user_namespace.h
@@ -10,6 +10,7 @@
#include <linux/rwsem.h>
#include <linux/sysctl.h>
#include <linux/err.h>
+#include <linux/android_kabi.h>
#define UID_GID_MAP_MAX_BASE_EXTENTS 5
#define UID_GID_MAP_MAX_EXTENTS 340
@@ -76,6 +77,9 @@ struct user_namespace {
#endif
struct ucounts *ucounts;
int ucount_max[UCOUNT_COUNTS];
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
} __randomize_layout;
struct ucounts {
diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h
index 8f48264..667eb63 100644
--- a/include/linux/virtio_net.h
+++ b/include/linux/virtio_net.h
@@ -85,13 +85,8 @@ static inline int virtio_net_hdr_to_skb(struct sk_buff *skb,
if (gso_type && skb->network_header) {
struct flow_keys_basic keys;
- if (!skb->protocol) {
- __be16 protocol = dev_parse_header_protocol(skb);
-
+ if (!skb->protocol)
virtio_net_hdr_set_proto(skb, hdr);
- if (protocol && protocol != skb->protocol)
- return -EINVAL;
- }
retry:
if (!skb_flow_dissect_flow_keys_basic(skb, &keys,
NULL, 0, 0, 0,
diff --git a/include/linux/virtio_vsock.h b/include/linux/virtio_vsock.h
index 8b8d13f..af5eecb 100644
--- a/include/linux/virtio_vsock.h
+++ b/include/linux/virtio_vsock.h
@@ -12,7 +12,8 @@
#define VIRTIO_VSOCK_DEFAULT_MAX_BUF_SIZE (1024 * 256)
#define VIRTIO_VSOCK_DEFAULT_RX_BUF_SIZE (1024 * 4)
#define VIRTIO_VSOCK_MAX_BUF_SIZE 0xFFFFFFFFUL
-#define VIRTIO_VSOCK_MAX_PKT_BUF_SIZE (1024 * 64)
+#define VIRTIO_VSOCK_MAX_PKT_BUF_SIZE virtio_transport_max_vsock_pkt_buf_size
+extern uint virtio_transport_max_vsock_pkt_buf_size;
enum {
VSOCK_VQ_RX = 0, /* for host to guest data */
diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h
index 47a3441..284df30 100644
--- a/include/linux/vm_event_item.h
+++ b/include/linux/vm_event_item.h
@@ -22,7 +22,7 @@
#define FOR_ALL_ZONES(xx) DMA_ZONE(xx) DMA32_ZONE(xx) xx##_NORMAL, HIGHMEM_ZONE(xx) xx##_MOVABLE
-enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT,
+enum vm_event_item { PGPGIN, PGPGOUT, PGPGOUTCLEAN, PSWPIN, PSWPOUT,
FOR_ALL_ZONES(PGALLOC),
FOR_ALL_ZONES(ALLOCSTALL),
FOR_ALL_ZONES(PGSCAN_SKIP),
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index 206957b..0e5b5ee 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -63,10 +63,12 @@ extern void vm_unmap_aliases(void);
#ifdef CONFIG_MMU
extern void __init vmalloc_init(void);
+extern unsigned long vmalloc_nr_pages(void);
#else
static inline void vmalloc_init(void)
{
}
+static inline unsigned long vmalloc_nr_pages(void) { return 0; }
#endif
extern void *vmalloc(unsigned long size);
diff --git a/include/linux/wait.h b/include/linux/wait.h
index ed7c122..62aa6e0 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -7,6 +7,7 @@
#include <linux/list.h>
#include <linux/stddef.h>
#include <linux/spinlock.h>
+#include <linux/sched/debug.h>
#include <asm/current.h>
#include <uapi/linux/wait.h>
@@ -1111,9 +1112,12 @@ void prepare_to_wait(struct wait_queue_head *wq_head, struct wait_queue_entry *w
void prepare_to_wait_exclusive(struct wait_queue_head *wq_head, struct wait_queue_entry *wq_entry, int state);
long prepare_to_wait_event(struct wait_queue_head *wq_head, struct wait_queue_entry *wq_entry, int state);
void finish_wait(struct wait_queue_head *wq_head, struct wait_queue_entry *wq_entry);
-long wait_woken(struct wait_queue_entry *wq_entry, unsigned mode, long timeout);
-int woken_wake_function(struct wait_queue_entry *wq_entry, unsigned mode, int sync, void *key);
-int autoremove_wake_function(struct wait_queue_entry *wq_entry, unsigned mode, int sync, void *key);
+long __sched wait_woken(struct wait_queue_entry *wq_entry, unsigned int mode,
+ long timeout);
+int __sched woken_wake_function(struct wait_queue_entry *wq_entry,
+ unsigned int mode, int sync, void *key);
+int __sched autoremove_wake_function(struct wait_queue_entry *wq_entry,
+ unsigned int mode, int sync, void *key);
#define DEFINE_WAIT_FUNC(name, function) \
struct wait_queue_entry name = { \
diff --git a/include/linux/wakeup_reason.h b/include/linux/wakeup_reason.h
new file mode 100644
index 0000000..54f5caa
--- /dev/null
+++ b/include/linux/wakeup_reason.h
@@ -0,0 +1,37 @@
+/*
+ * include/linux/wakeup_reason.h
+ *
+ * Logs the reason which caused the kernel to resume
+ * from the suspend mode.
+ *
+ * Copyright (C) 2014 Google, Inc.
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _LINUX_WAKEUP_REASON_H
+#define _LINUX_WAKEUP_REASON_H
+
+#define MAX_SUSPEND_ABORT_LEN 256
+
+#ifdef CONFIG_SUSPEND
+void log_irq_wakeup_reason(int irq);
+void log_threaded_irq_wakeup_reason(int irq, int parent_irq);
+void log_suspend_abort_reason(const char *fmt, ...);
+void log_abnormal_wakeup_reason(const char *fmt, ...);
+void clear_wakeup_reasons(void);
+#else
+static inline void log_irq_wakeup_reason(int irq) { }
+static inline void log_threaded_irq_wakeup_reason(int irq, int parent_irq) { }
+static inline void log_suspend_abort_reason(const char *fmt, ...) { }
+static inline void log_abnormal_wakeup_reason(const char *fmt, ...) { }
+static inline void clear_wakeup_reasons(void) { }
+#endif
+
+#endif /* _LINUX_WAKEUP_REASON_H */
diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index 60d673e..342f374 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -14,6 +14,7 @@
#include <linux/atomic.h>
#include <linux/cpumask.h>
#include <linux/rcupdate.h>
+#include <linux/android_kabi.h>
struct workqueue_struct;
@@ -106,6 +107,8 @@ struct work_struct {
#ifdef CONFIG_LOCKDEP
struct lockdep_map lockdep_map;
#endif
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
};
#define WORK_DATA_INIT() ATOMIC_LONG_INIT((unsigned long)WORK_STRUCT_NO_POOL)
@@ -119,6 +122,9 @@ struct delayed_work {
/* target workqueue and CPU ->timer uses to queue ->work */
struct workqueue_struct *wq;
int cpu;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
};
struct rcu_work {
diff --git a/include/linux/xattr.h b/include/linux/xattr.h
index 3a71ad7..e704feb 100644
--- a/include/linux/xattr.h
+++ b/include/linux/xattr.h
@@ -30,10 +30,13 @@ struct xattr_handler {
const char *prefix;
int flags; /* fs private flags */
bool (*list)(struct dentry *dentry);
- int (*get)(const struct xattr_handler *, struct dentry *dentry,
+ int (*get)(const struct xattr_handler *handler, struct dentry *dentry,
struct inode *inode, const char *name, void *buffer,
size_t size);
- int (*set)(const struct xattr_handler *, struct dentry *dentry,
+ int (*__get)(const struct xattr_handler *handler, struct dentry *dentry,
+ struct inode *inode, const char *name, void *buffer,
+ size_t size);
+ int (*set)(const struct xattr_handler *handler, struct dentry *dentry,
struct inode *inode, const char *name, const void *buffer,
size_t size, int flags);
};
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index eac37dd..9102d6c 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -171,9 +171,6 @@ struct v4l2_subdev_io_pin_config {
* @s_gpio: set GPIO pins. Very simple right now, might need to be extended with
* a direction argument if needed.
*
- * @command: called by in-kernel drivers in order to call functions internal
- * to subdev drivers driver that have a separate callback.
- *
* @ioctl: called at the end of ioctl() syscall handler at the V4L2 core.
* used to provide support for private ioctls used on the driver.
*
@@ -205,7 +202,6 @@ struct v4l2_subdev_core_ops {
int (*load_fw)(struct v4l2_subdev *sd);
int (*reset)(struct v4l2_subdev *sd, u32 val);
int (*s_gpio)(struct v4l2_subdev *sd, u32 val);
- long (*command)(struct v4l2_subdev *sd, unsigned int cmd, void *arg);
long (*ioctl)(struct v4l2_subdev *sd, unsigned int cmd, void *arg);
#ifdef CONFIG_COMPAT
long (*compat_ioctl32)(struct v4l2_subdev *sd, unsigned int cmd,
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index bddd86c..278613a 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -18,7 +18,7 @@
#include <linux/dma-buf.h>
#include <linux/bitops.h>
-#define VB2_MAX_FRAME (32)
+#define VB2_MAX_FRAME (64)
#define VB2_MAX_PLANES (8)
/**
diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index db2a879..ae614b5 100644
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -298,6 +298,18 @@ static inline bool ipv6_is_mld(struct sk_buff *skb, int nexthdr, int offset)
void addrconf_prefix_rcv(struct net_device *dev,
u8 *opt, int len, bool sllao);
+/* Determines into what table to put autoconf PIO/RIO/default routes
+ * learned on this device.
+ *
+ * - If 0, use the same table for every device. This puts routes into
+ * one of RT_TABLE_{PREFIX,INFO,DFLT} depending on the type of route
+ * (but note that these three are currently all equal to
+ * RT6_TABLE_MAIN).
+ * - If > 0, use the specified table.
+ * - If < 0, put routes into table dev->ifindex + (-rt_table).
+ */
+u32 addrconf_rt_table(const struct net_device *dev, u32 default_table);
+
/*
* anycast prototypes (anycast.c)
*/
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index b96debd..dec1f43 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -6,7 +6,7 @@
* Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
* Copyright 2013-2014 Intel Mobile Communications GmbH
* Copyright 2015-2017 Intel Deutschland GmbH
- * Copyright (C) 2018 Intel Corporation
+ * Copyright (C) 2018-2019 Intel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -25,6 +25,9 @@
#include <linux/net.h>
#include <net/regulatory.h>
+/* Indicate support for including KEK length in rekey data */
+#define CFG80211_REKEY_DATA_KEK_LEN 1
+
/**
* DOC: Introduction
*
@@ -321,6 +324,60 @@ struct ieee80211_sband_iftype_data {
};
/**
+ * enum ieee80211_edmg_bw_config - allowed channel bandwidth configurations
+ *
+ * @IEEE80211_EDMG_BW_CONFIG_4: 2.16GHz
+ * @IEEE80211_EDMG_BW_CONFIG_5: 2.16GHz and 4.32GHz
+ * @IEEE80211_EDMG_BW_CONFIG_6: 2.16GHz, 4.32GHz and 6.48GHz
+ * @IEEE80211_EDMG_BW_CONFIG_7: 2.16GHz, 4.32GHz, 6.48GHz and 8.64GHz
+ * @IEEE80211_EDMG_BW_CONFIG_8: 2.16GHz and 2.16GHz + 2.16GHz
+ * @IEEE80211_EDMG_BW_CONFIG_9: 2.16GHz, 4.32GHz and 2.16GHz + 2.16GHz
+ * @IEEE80211_EDMG_BW_CONFIG_10: 2.16GHz, 4.32GHz, 6.48GHz and 2.16GHz+2.16GHz
+ * @IEEE80211_EDMG_BW_CONFIG_11: 2.16GHz, 4.32GHz, 6.48GHz, 8.64GHz and
+ * 2.16GHz+2.16GHz
+ * @IEEE80211_EDMG_BW_CONFIG_12: 2.16GHz, 2.16GHz + 2.16GHz and
+ * 4.32GHz + 4.32GHz
+ * @IEEE80211_EDMG_BW_CONFIG_13: 2.16GHz, 4.32GHz, 2.16GHz + 2.16GHz and
+ * 4.32GHz + 4.32GHz
+ * @IEEE80211_EDMG_BW_CONFIG_14: 2.16GHz, 4.32GHz, 6.48GHz, 2.16GHz + 2.16GHz
+ * and 4.32GHz + 4.32GHz
+ * @IEEE80211_EDMG_BW_CONFIG_15: 2.16GHz, 4.32GHz, 6.48GHz, 8.64GHz,
+ * 2.16GHz + 2.16GHz and 4.32GHz + 4.32GHz
+ */
+enum ieee80211_edmg_bw_config {
+ IEEE80211_EDMG_BW_CONFIG_4 = 4,
+ IEEE80211_EDMG_BW_CONFIG_5 = 5,
+ IEEE80211_EDMG_BW_CONFIG_6 = 6,
+ IEEE80211_EDMG_BW_CONFIG_7 = 7,
+ IEEE80211_EDMG_BW_CONFIG_8 = 8,
+ IEEE80211_EDMG_BW_CONFIG_9 = 9,
+ IEEE80211_EDMG_BW_CONFIG_10 = 10,
+ IEEE80211_EDMG_BW_CONFIG_11 = 11,
+ IEEE80211_EDMG_BW_CONFIG_12 = 12,
+ IEEE80211_EDMG_BW_CONFIG_13 = 13,
+ IEEE80211_EDMG_BW_CONFIG_14 = 14,
+ IEEE80211_EDMG_BW_CONFIG_15 = 15,
+};
+
+/**
+ * struct ieee80211_edmg - EDMG configuration
+ *
+ * This structure describes most essential parameters needed
+ * to describe 802.11ay EDMG configuration
+ *
+ * @channels: bitmap that indicates the 2.16 GHz channel(s)
+ * that are allowed to be used for transmissions.
+ * Bit 0 indicates channel 1, bit 1 indicates channel 2, etc.
+ * Set to 0 indicate EDMG not supported.
+ * @bw_config: Channel BW Configuration subfield encodes
+ * the allowed channel bandwidth configurations
+ */
+struct ieee80211_edmg {
+ u8 channels;
+ enum ieee80211_edmg_bw_config bw_config;
+};
+
+/**
* struct ieee80211_supported_band - frequency band definition
*
* This structure describes a frequency band a wiphy
@@ -336,6 +393,7 @@ struct ieee80211_sband_iftype_data {
* @n_bitrates: Number of bitrates in @bitrates
* @ht_cap: HT capabilities in this band
* @vht_cap: VHT capabilities in this band
+ * @edmg_cap: EDMG capabilities in this band
* @n_iftype_data: number of iftype data entries
* @iftype_data: interface type data entries. Note that the bits in
* @types_mask inside this structure cannot overlap (i.e. only
@@ -350,6 +408,7 @@ struct ieee80211_supported_band {
int n_bitrates;
struct ieee80211_sta_ht_cap ht_cap;
struct ieee80211_sta_vht_cap vht_cap;
+ struct ieee80211_edmg edmg_cap;
u16 n_iftype_data;
const struct ieee80211_sband_iftype_data *iftype_data;
};
@@ -501,12 +560,17 @@ struct key_params {
* @center_freq1: center frequency of first segment
* @center_freq2: center frequency of second segment
* (only with 80+80 MHz)
+ * @edmg: define the EDMG channels configuration.
+ * If edmg is requested (i.e. the .channels member is non-zero),
+ * chan will define the primary channel and all other
+ * parameters are ignored.
*/
struct cfg80211_chan_def {
struct ieee80211_channel *chan;
enum nl80211_chan_width width;
u32 center_freq1;
u32 center_freq2;
+ struct ieee80211_edmg edmg;
};
/**
@@ -565,6 +629,19 @@ cfg80211_chandef_identical(const struct cfg80211_chan_def *chandef1,
}
/**
+ * cfg80211_chandef_is_edmg - check if chandef represents an EDMG channel
+ *
+ * @chandef: the channel definition
+ *
+ * Return: %true if EDMG defined, %false otherwise.
+ */
+static inline bool
+cfg80211_chandef_is_edmg(const struct cfg80211_chan_def *chandef)
+{
+ return chandef->edmg.channels || chandef->edmg.bw_config;
+}
+
+/**
* cfg80211_chandef_compatible - check if two channel definitions are compatible
* @chandef1: first channel definition
* @chandef2: second channel definition
@@ -823,6 +900,17 @@ struct cfg80211_bitrate_mask {
};
/**
+ * enum cfg80211_ap_settings_flags - AP settings flags
+ *
+ * Used by cfg80211_ap_settings
+ *
+ * @AP_SETTINGS_EXTERNAL_AUTH_SUPPORT: AP supports external authentication
+ */
+enum cfg80211_ap_settings_flags {
+ AP_SETTINGS_EXTERNAL_AUTH_SUPPORT = BIT(0),
+};
+
+/**
* struct cfg80211_ap_settings - AP configuration
*
* Used to configure an AP interface.
@@ -851,6 +939,7 @@ struct cfg80211_bitrate_mask {
* @vht_cap: VHT capabilities (or %NULL if VHT isn't enabled)
* @ht_required: stations must support HT
* @vht_required: stations must support VHT
+ * @flags: flags, as defined in enum cfg80211_ap_settings_flags
*/
struct cfg80211_ap_settings {
struct cfg80211_chan_def chandef;
@@ -875,6 +964,7 @@ struct cfg80211_ap_settings {
const struct ieee80211_ht_cap *ht_cap;
const struct ieee80211_vht_cap *vht_cap;
bool ht_required, vht_required;
+ u32 flags;
};
/**
@@ -1090,15 +1180,17 @@ int cfg80211_check_station_change(struct wiphy *wiphy,
* @RATE_INFO_FLAGS_MCS: mcs field filled with HT MCS
* @RATE_INFO_FLAGS_VHT_MCS: mcs field filled with VHT MCS
* @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
- * @RATE_INFO_FLAGS_60G: 60GHz MCS
+ * @RATE_INFO_FLAGS_DMG: 60GHz MCS
* @RATE_INFO_FLAGS_HE_MCS: HE MCS information
+ * @RATE_INFO_FLAGS_EDMG: 60GHz MCS in EDMG mode
*/
enum rate_info_flags {
RATE_INFO_FLAGS_MCS = BIT(0),
RATE_INFO_FLAGS_VHT_MCS = BIT(1),
RATE_INFO_FLAGS_SHORT_GI = BIT(2),
- RATE_INFO_FLAGS_60G = BIT(3),
+ RATE_INFO_FLAGS_DMG = BIT(3),
RATE_INFO_FLAGS_HE_MCS = BIT(4),
+ RATE_INFO_FLAGS_EDMG = BIT(5),
};
/**
@@ -1138,6 +1230,7 @@ enum rate_info_bw {
* @he_dcm: HE DCM value
* @he_ru_alloc: HE RU allocation (from &enum nl80211_he_ru_alloc,
* only valid if bw is %RATE_INFO_BW_HE_RU)
+ * @n_bonded_ch: In case of EDMG the number of bonded channels (1-4)
*/
struct rate_info {
u8 flags;
@@ -1148,6 +1241,7 @@ struct rate_info {
u8 he_gi;
u8 he_dcm;
u8 he_ru_alloc;
+ u8 n_bonded_ch;
};
/**
@@ -1290,6 +1384,10 @@ struct cfg80211_tid_stats {
* @ack_signal: signal strength (in dBm) of the last ACK frame.
* @avg_ack_signal: average rssi value of ack packet for the no of msdu's has
* been sent.
+ * @rx_mpdu_count: number of MPDUs received from this station
+ * @fcs_err_count: number of packets (MPDUs) received from this station with
+ * an FCS error. This counter should be incremented only when TA of the
+ * received packet with an FCS error matches the peer MAC address.
*/
struct station_info {
u64 filled;
@@ -1336,6 +1434,9 @@ struct station_info {
struct cfg80211_tid_stats *pertid;
s8 ack_signal;
s8 avg_ack_signal;
+
+ u32 rx_mpdu_count;
+ u32 fcs_err_count;
};
#if IS_ENABLED(CONFIG_CFG80211)
@@ -1980,6 +2081,8 @@ struct cfg80211_bss_ies {
* @signal: signal strength value (type depends on the wiphy's signal_type)
* @chains: bitmask for filled values in @chain_signal.
* @chain_signal: per-chain signal strength of last received BSS in dBm.
+ * @bssid_index: index in the multiple BSS set
+ * @max_bssid_indicator: max number of members in the BSS set
* @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
*/
struct cfg80211_bss {
@@ -1991,6 +2094,8 @@ struct cfg80211_bss {
const struct cfg80211_bss_ies __rcu *proberesp_ies;
struct cfg80211_bss *hidden_beacon_bss;
+ struct cfg80211_bss *transmitted_bss;
+ struct list_head nontrans_list;
s32 signal;
@@ -2001,6 +2106,9 @@ struct cfg80211_bss {
u8 chains;
s8 chain_signal[IEEE80211_MAX_CHAINS];
+ u8 bssid_index;
+ u8 max_bssid_indicator;
+
u8 priv[0] __aligned(sizeof(void *));
};
@@ -2285,6 +2393,9 @@ struct cfg80211_bss_selection {
* @fils_erp_rrk_len: Length of @fils_erp_rrk in octets.
* @want_1x: indicates user-space supports and wants to use 802.1X driver
* offload of 4-way handshake.
+ * @edmg: define the EDMG channels.
+ * This may specify multiple channels and bonding options for the driver
+ * to choose from, based on BSS configuration.
*/
struct cfg80211_connect_params {
struct ieee80211_channel *channel;
@@ -2318,6 +2429,7 @@ struct cfg80211_connect_params {
const u8 *fils_erp_rrk;
size_t fils_erp_rrk_len;
bool want_1x;
+ struct ieee80211_edmg edmg;
};
/**
@@ -2562,12 +2674,14 @@ struct cfg80211_wowlan_wakeup {
/**
* struct cfg80211_gtk_rekey_data - rekey data
- * @kek: key encryption key (NL80211_KEK_LEN bytes)
+ * @kek: key encryption key
* @kck: key confirmation key (NL80211_KCK_LEN bytes)
* @replay_ctr: replay counter (NL80211_REPLAY_CTR_LEN bytes)
+ * @kek_len: Length of @kek in octets
*/
struct cfg80211_gtk_rekey_data {
const u8 *kek, *kck, *replay_ctr;
+ size_t kek_len;
};
/**
@@ -2785,6 +2899,7 @@ struct cfg80211_pmk_conf {
* use %WLAN_STATUS_UNSPECIFIED_FAILURE if user space cannot give you
* the real status code for failures. Used only for the authentication
* response command interface (user space to driver).
+ * @pmkid: The identifier to refer a PMKSA.
*/
struct cfg80211_external_auth_params {
enum nl80211_external_auth_action action;
@@ -2792,6 +2907,33 @@ struct cfg80211_external_auth_params {
struct cfg80211_ssid ssid;
unsigned int key_mgmt_suite;
u16 status;
+ const u8 *pmkid;
+};
+
+/**
+ * struct cfg80211_update_owe_info - OWE Information
+ *
+ * This structure provides information needed for the drivers to offload OWE
+ * (Opportunistic Wireless Encryption) processing to the user space.
+ *
+ * Commonly used across update_owe_info request and event interfaces.
+ *
+ * @peer: MAC address of the peer device for which the OWE processing
+ * has to be done.
+ * @status: status code, %WLAN_STATUS_SUCCESS for successful OWE info
+ * processing, use %WLAN_STATUS_UNSPECIFIED_FAILURE if user space
+ * cannot give you the real status code for failures. Used only for
+ * OWE update request command interface (user space to driver).
+ * @ie: IEs obtained from the peer or constructed by the user space. These are
+ * the IEs of the remote peer in the event from the host driver and
+ * the constructed IEs by the user space in the request interface.
+ * @ie_len: Length of IEs in octets.
+ */
+struct cfg80211_update_owe_info {
+ u8 peer[ETH_ALEN] __aligned(2);
+ u16 status;
+ const u8 *ie;
+ size_t ie_len;
};
/**
@@ -2841,6 +2983,8 @@ struct cfg80211_external_auth_params {
* @set_default_key: set the default key on an interface
*
* @set_default_mgmt_key: set the default management frame key on an interface
+
+ * @set_default_beacon_key: set the default Beacon frame key on an interface
*
* @set_rekey_data: give the data necessary for GTK rekeying to the driver
*
@@ -3129,6 +3273,10 @@ struct cfg80211_external_auth_params {
*
* @tx_control_port: TX a control port frame (EAPoL). The noencrypt parameter
* tells the driver that the frame should not be encrypted.
+ *
+ * @update_owe_info: Provide updated OWE info to driver. Driver implementing SME
+ * but offloading OWE processing to the user space will get the updated
+ * DH IE through this interface.
*/
struct cfg80211_ops {
int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
@@ -3162,6 +3310,9 @@ struct cfg80211_ops {
int (*set_default_mgmt_key)(struct wiphy *wiphy,
struct net_device *netdev,
u8 key_index);
+ int (*set_default_beacon_key)(struct wiphy *wiphy,
+ struct net_device *netdev,
+ u8 key_index);
int (*start_ap)(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_ap_settings *settings);
@@ -3268,13 +3419,11 @@ struct cfg80211_ops {
void (*rfkill_poll)(struct wiphy *wiphy);
-#ifdef CONFIG_NL80211_TESTMODE
int (*testmode_cmd)(struct wiphy *wiphy, struct wireless_dev *wdev,
void *data, int len);
int (*testmode_dump)(struct wiphy *wiphy, struct sk_buff *skb,
struct netlink_callback *cb,
void *data, int len);
-#endif
int (*set_bitrate_mask)(struct wiphy *wiphy,
struct net_device *dev,
@@ -3436,6 +3585,8 @@ struct cfg80211_ops {
const u8 *buf, size_t len,
const u8 *dest, const __be16 proto,
const bool noencrypt);
+ int (*update_owe_info)(struct wiphy *wiphy, struct net_device *dev,
+ struct cfg80211_update_owe_info *owe_info);
};
/*
@@ -3809,6 +3960,21 @@ struct wiphy_iftype_ext_capab {
};
/**
+ * struct wiphy_iftype_akm_suites - This structure encapsulates supported akm
+ * suites for interface types defined in @iftypes_mask. Each type in the
+ * @iftypes_mask must be unique across all instances of iftype_akm_suites.
+ *
+ * @iftypes_mask: bitmask of interfaces types
+ * @akm_suites: points to an array of supported akm suites
+ * @n_akm_suites: number of supported AKM suites
+ */
+struct wiphy_iftype_akm_suites {
+ u16 iftypes_mask;
+ const u32 *akm_suites;
+ int n_akm_suites;
+};
+
+/**
* struct wiphy - wireless hardware description
* @reg_notifier: the driver's regulatory notification callback,
* note that if your driver uses wiphy_apply_custom_regulatory()
@@ -3820,6 +3986,12 @@ struct wiphy_iftype_ext_capab {
* @signal_type: signal type reported in &struct cfg80211_bss.
* @cipher_suites: supported cipher suites
* @n_cipher_suites: number of supported cipher suites
+ * @iftype_akm_suites: array of supported akm suites info per interface type.
+ * Note that the bits in @iftypes_mask inside this structure cannot
+ * overlap (i.e. only one occurrence of each type is allowed across all
+ * instances of iftype_akm_suites).
+ * @num_iftype_akm_suites: number of interface types for which supported akm
+ * suites are specified separately.
* @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
* @retry_long: Retry limit for long frames (dot11LongRetryLimit)
* @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
@@ -3973,6 +4145,11 @@ struct wiphy_iftype_ext_capab {
* @txq_limit: configuration of internal TX queue frame limit
* @txq_memory_limit: configuration internal TX queue memory limit
* @txq_quantum: configuration of internal TX queue scheduler quantum
+ *
+ * @support_mbssid: can HW support association with nontransmitted AP
+ * @support_only_he_mbssid: don't parse MBSSID elements if it is not
+ * HE AP, in order to avoid compatibility issues.
+ * @support_mbssid must be set for this to have any effect.
*/
struct wiphy {
/* assign these fields before you register the wiphy */
@@ -4017,6 +4194,9 @@ struct wiphy {
int n_cipher_suites;
const u32 *cipher_suites;
+ const struct wiphy_iftype_akm_suites *iftype_akm_suites;
+ unsigned int num_iftype_akm_suites;
+
u8 retry_short;
u8 retry_long;
u32 frag_threshold;
@@ -4111,6 +4291,9 @@ struct wiphy {
u32 txq_memory_limit;
u32 txq_quantum;
+ u8 support_mbssid:1,
+ support_only_he_mbssid:1;
+
char priv[0] __aligned(NETDEV_ALIGN);
};
@@ -4982,6 +5165,27 @@ cfg80211_inform_bss_frame(struct wiphy *wiphy,
}
/**
+ * cfg80211_gen_new_bssid - generate a nontransmitted BSSID for multi-BSSID
+ * @bssid: transmitter BSSID
+ * @max_bssid: max BSSID indicator, taken from Multiple BSSID element
+ * @mbssid_index: BSSID index, taken from Multiple BSSID index element
+ * @new_bssid: calculated nontransmitted BSSID
+ */
+static inline void cfg80211_gen_new_bssid(const u8 *bssid, u8 max_bssid,
+ u8 mbssid_index, u8 *new_bssid)
+{
+ u64 bssid_u64 = ether_addr_to_u64(bssid);
+ u64 mask = GENMASK_ULL(max_bssid - 1, 0);
+ u64 new_bssid_u64;
+
+ new_bssid_u64 = bssid_u64 & ~mask;
+
+ new_bssid_u64 |= ((bssid_u64 & mask) + mbssid_index) & mask;
+
+ u64_to_ether_addr(new_bssid_u64, new_bssid);
+}
+
+/**
* enum cfg80211_bss_frame_type - frame type that the BSS data came from
* @CFG80211_BSS_FTYPE_UNKNOWN: driver doesn't know whether the data is
* from a beacon or probe response
@@ -6399,6 +6603,13 @@ void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp);
/**
+ * cfg80211_ap_stopped - notify userspace that AP mode stopped
+ * @netdev: network device
+ * @gfp: context flags
+ */
+void cfg80211_ap_stopped(struct net_device *netdev, gfp_t gfp);
+
+/**
* ieee80211_get_num_supported_channels - get number of channels device has
* @wiphy: the wiphy
*
@@ -6639,4 +6850,14 @@ bool cfg80211_iftype_allowed(struct wiphy *wiphy, enum nl80211_iftype iftype,
#define wiphy_WARN(wiphy, format, args...) \
WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args);
+/**
+ * cfg80211_update_owe_info_event - Notify the peer's OWE info to user space
+ * @netdev: network device
+ * @owe_info: peer's owe info
+ * @gfp: allocation flags
+ */
+void cfg80211_update_owe_info_event(struct net_device *netdev,
+ struct cfg80211_update_owe_info *owe_info,
+ gfp_t gfp);
+
#endif /* __NET_CFG80211_H */
diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index 3e3a1a3..decf601 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -34,6 +34,12 @@ struct genl_info;
* do additional, common, filtering and return an error
* @post_doit: called after an operation's doit callback, it may
* undo operations done by pre_doit, for example release locks
+ * @mcast_bind: a socket bound to the given multicast group (which
+ * is given as the offset into the groups array)
+ * @mcast_unbind: a socket was unbound from the given multicast group.
+ * Note that unbind() will not be called symmetrically if the
+ * generic netlink family is removed while there are still open
+ * sockets.
* @attrbuf: buffer to store parsed attributes (private)
* @mcgrps: multicast groups used by this family
* @n_mcgrps: number of multicast groups
@@ -56,6 +62,8 @@ struct genl_family {
void (*post_doit)(const struct genl_ops *ops,
struct sk_buff *skb,
struct genl_info *info);
+ int (*mcast_bind)(struct net *net, int group);
+ void (*mcast_unbind)(struct net *net, int group);
struct nlattr ** attrbuf; /* private */
const struct genl_ops * ops;
const struct genl_multicast_group *mcgrps;
diff --git a/include/net/ip.h b/include/net/ip.h
index e8fa252..3c45d8f 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -34,7 +34,9 @@
#include <net/flow.h>
#include <net/flow_dissector.h>
#include <net/netns/hash.h>
+#ifndef __GENKSYMS__
#include <net/lwtunnel.h>
+#endif
#define IPV4_MAX_PMTU 65535U /* RFC 2675, Section 5.1 */
#define IPV4_MIN_MTU 68 /* RFC 791 */
diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index f8873c4..d5f62fb 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -307,6 +307,8 @@ int ip_tunnel_newlink(struct net_device *dev, struct nlattr *tb[],
struct ip_tunnel_parm *p, __u32 fwmark);
void ip_tunnel_setup(struct net_device *dev, unsigned int net_id);
+__be16 ip_tunnel_parse_protocol(const struct sk_buff *skb);
+
struct ip_tunnel_encap_ops {
size_t (*encap_hlen)(struct ip_tunnel_encap *e);
int (*build_header)(struct sk_buff *skb, struct ip_tunnel_encap *e,
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 5790f55..dc967dd 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -3693,13 +3693,11 @@ struct ieee80211_ops {
struct survey_info *survey);
void (*rfkill_poll)(struct ieee80211_hw *hw);
void (*set_coverage_class)(struct ieee80211_hw *hw, s16 coverage_class);
-#ifdef CONFIG_NL80211_TESTMODE
int (*testmode_cmd)(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
void *data, int len);
int (*testmode_dump)(struct ieee80211_hw *hw, struct sk_buff *skb,
struct netlink_callback *cb,
void *data, int len);
-#endif
void (*flush)(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
u32 queues, bool drop);
void (*channel_switch)(struct ieee80211_hw *hw,
diff --git a/include/net/ndisc.h b/include/net/ndisc.h
index ddfbb59..ce42654 100644
--- a/include/net/ndisc.h
+++ b/include/net/ndisc.h
@@ -38,6 +38,8 @@ enum {
ND_OPT_RDNSS = 25, /* RFC5006 */
ND_OPT_DNSSL = 31, /* RFC6106 */
ND_OPT_6CO = 34, /* RFC6775 */
+ ND_OPT_CAPTIVE_PORTAL = 37, /* RFC7710 */
+ ND_OPT_PREF64 = 38, /* RFC8781 */
__ND_OPT_MAX
};
diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index bc88ac6..be7b9bd 100644
--- a/include/net/net_namespace.h
+++ b/include/net/net_namespace.h
@@ -113,9 +113,7 @@ struct net {
#if IS_ENABLED(CONFIG_IEEE802154_6LOWPAN)
struct netns_ieee802154_lowpan ieee802154_lowpan;
#endif
-#if defined(CONFIG_IP_SCTP) || defined(CONFIG_IP_SCTP_MODULE)
struct netns_sctp sctp;
-#endif
#if defined(CONFIG_IP_DCCP) || defined(CONFIG_IP_DCCP_MODULE)
struct netns_dccp dccp;
#endif
diff --git a/include/net/netns/netfilter.h b/include/net/netns/netfilter.h
index ca04334..47daca9 100644
--- a/include/net/netns/netfilter.h
+++ b/include/net/netns/netfilter.h
@@ -22,9 +22,7 @@ struct netns_nf {
#ifdef CONFIG_NETFILTER_FAMILY_ARP
struct nf_hook_entries __rcu *hooks_arp[NF_ARP_NUMHOOKS];
#endif
-#ifdef CONFIG_NETFILTER_FAMILY_BRIDGE
struct nf_hook_entries __rcu *hooks_bridge[NF_INET_NUMHOOKS];
-#endif
#if IS_ENABLED(CONFIG_DECNET)
struct nf_hook_entries __rcu *hooks_decnet[NF_DN_NUMHOOKS];
#endif
diff --git a/include/net/netns/x_tables.h b/include/net/netns/x_tables.h
index 9bc5a12..a0d89fd 100644
--- a/include/net/netns/x_tables.h
+++ b/include/net/netns/x_tables.h
@@ -11,11 +11,8 @@ struct netns_xt {
struct list_head tables[NFPROTO_NUMPROTO];
bool notrack_deprecated_warning;
bool clusterip_deprecated_warning;
-#if defined(CONFIG_BRIDGE_NF_EBTABLES) || \
- defined(CONFIG_BRIDGE_NF_EBTABLES_MODULE)
struct ebt_table *broute_table;
struct ebt_table *frame_filter;
struct ebt_table *frame_nat;
-#endif
};
#endif
diff --git a/include/net/netns/xfrm.h b/include/net/netns/xfrm.h
index fbfa5980..9991e5ef 100644
--- a/include/net/netns/xfrm.h
+++ b/include/net/netns/xfrm.h
@@ -70,9 +70,7 @@ struct netns_xfrm {
#if IS_ENABLED(CONFIG_IPV6)
struct dst_ops xfrm6_dst_ops;
#endif
- spinlock_t xfrm_state_lock;
- seqcount_t xfrm_state_hash_generation;
-
+ spinlock_t xfrm_state_lock;
spinlock_t xfrm_policy_lock;
struct mutex xfrm_cfg_mutex;
};
diff --git a/include/net/rtnetlink.h b/include/net/rtnetlink.h
index 3d961a3..0bbaa54 100644
--- a/include/net/rtnetlink.h
+++ b/include/net/rtnetlink.h
@@ -33,7 +33,6 @@ static inline int rtnl_msg_family(const struct nlmsghdr *nlh)
*
* @list: Used internally
* @kind: Identifier
- * @netns_refund: Physical device, move to init_net on netns exit
* @maxtype: Highest device specific netlink attribute number
* @policy: Netlink policy for device specific attribute validation
* @validate: Optional validation function for netlink/changelink parameters
@@ -65,7 +64,6 @@ struct rtnl_link_ops {
size_t priv_size;
void (*setup)(struct net_device *dev);
- bool netns_refund;
unsigned int maxtype;
const struct nla_policy *policy;
int (*validate)(struct nlattr *tb[],
diff --git a/include/net/sock.h b/include/net/sock.h
index 351749c..9652b89 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -73,6 +73,7 @@
#include <linux/net_tstamp.h>
#include <net/smc.h>
#include <net/l3mdev.h>
+#include <linux/android_kabi.h>
/*
* This structure really needs to be cleaned up.
@@ -509,6 +510,15 @@ struct sock {
void (*sk_destruct)(struct sock *sk);
struct sock_reuseport __rcu *sk_reuseport_cb;
struct rcu_head sk_rcu;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
+ ANDROID_KABI_RESERVE(5);
+ ANDROID_KABI_RESERVE(6);
+ ANDROID_KABI_RESERVE(7);
+ ANDROID_KABI_RESERVE(8);
};
enum sk_pacing {
diff --git a/include/net/virt_wifi.h b/include/net/virt_wifi.h
new file mode 100644
index 0000000..343e739
--- /dev/null
+++ b/include/net/virt_wifi.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* include/net/virt_wifi.h
+ *
+ * Define the extension interface for the network data simulation
+ *
+ * Copyright (C) 2019 Google, Inc.
+ *
+ * Author: lesl@google.com
+ */
+#ifndef __VIRT_WIFI_H
+#define __VIRT_WIFI_H
+
+struct virt_wifi_network_simulation {
+ void (*notify_device_open)(struct net_device *dev);
+ void (*notify_device_stop)(struct net_device *dev);
+ void (*notify_scan_trigger)(struct wiphy *wiphy,
+ struct cfg80211_scan_request *request);
+ int (*generate_virt_scan_result)(struct wiphy *wiphy);
+};
+
+int virt_wifi_register_network_simulation(
+ struct virt_wifi_network_simulation *ops);
+int virt_wifi_unregister_network_simulation(void);
+#endif
+
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index fe8bed5..1078828 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -2093,4 +2093,38 @@ static inline int xfrm_tunnel_check(struct sk_buff *skb, struct xfrm_state *x,
return 0;
}
+
+extern const int xfrm_msg_min[XFRM_NR_MSGTYPES];
+extern const struct nla_policy xfrma_policy[XFRMA_MAX+1];
+
+struct xfrm_translator {
+ /* Allocate frag_list and put compat translation there */
+ int (*alloc_compat)(struct sk_buff *skb, const struct nlmsghdr *src);
+
+ /* Allocate nlmsg with 64-bit translaton of received 32-bit message */
+ struct nlmsghdr *(*rcv_msg_compat)(const struct nlmsghdr *nlh,
+ int maxtype, const struct nla_policy *policy,
+ struct netlink_ext_ack *extack);
+
+ /* Translate 32-bit user_policy from sockptr */
+ int (*xlate_user_policy_sockptr)(u8 **pdata32, int optlen);
+
+ struct module *owner;
+};
+
+#if IS_ENABLED(CONFIG_XFRM_USER_COMPAT)
+extern int xfrm_register_translator(struct xfrm_translator *xtr);
+extern int xfrm_unregister_translator(struct xfrm_translator *xtr);
+extern struct xfrm_translator *xfrm_get_translator(void);
+extern void xfrm_put_translator(struct xfrm_translator *xtr);
+#else
+static inline struct xfrm_translator *xfrm_get_translator(void)
+{
+ return NULL;
+}
+static inline void xfrm_put_translator(struct xfrm_translator *xtr)
+{
+}
+#endif
+
#endif /* _NET_XFRM_H */
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index c891ada..1615661 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -11,6 +11,7 @@
#include <linux/scatterlist.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_request.h>
+#include <linux/android_kabi.h>
struct Scsi_Host;
struct scsi_driver;
@@ -147,6 +148,11 @@ struct scsi_cmnd {
int flags; /* Command flags */
unsigned char tag; /* SCSI-II queued command tag */
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
/*
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 202f4d6..64cbee4 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -8,6 +8,7 @@
#include <linux/blkdev.h>
#include <scsi/scsi.h>
#include <linux/atomic.h>
+#include <linux/android_kabi.h>
struct device;
struct request_queue;
@@ -199,6 +200,10 @@ struct scsi_device {
unsigned broken_fua:1; /* Don't set FUA bit */
unsigned lun_in_cdb:1; /* Store LUN bits in CDB[1] */
unsigned unmap_limit_for_ws:1; /* Use the UNMAP limit for WRITE SAME */
+ unsigned rpm_autosuspend:1; /* Enable runtime autosuspend at device
+ * creation time */
+ /* If non-zero, use timeout (in jiffies) for all commands */
+ unsigned int timeout_override;
atomic_t disk_events_disable_depth; /* disable depth for disk events */
@@ -228,6 +233,11 @@ struct scsi_device {
enum scsi_device_state sdev_state;
struct task_struct *quiesced_by;
unsigned long sdev_data[0];
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
} __attribute__((aligned(sizeof(unsigned long))));
#define to_scsi_device(d) \
@@ -455,6 +465,8 @@ extern void sdev_disable_disk_events(struct scsi_device *sdev);
extern void sdev_enable_disk_events(struct scsi_device *sdev);
extern int scsi_vpd_lun_id(struct scsi_device *, char *, size_t);
extern int scsi_vpd_tpg_id(struct scsi_device *, int *);
+extern void scsi_set_cmd_timeout_override(struct scsi_device *sdev,
+ unsigned int timeout);
#ifdef CONFIG_PM
extern int scsi_autopm_get_device(struct scsi_device *);
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index 5ea06d3..0c750a8 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -10,6 +10,7 @@
#include <linux/seq_file.h>
#include <linux/blk-mq.h>
#include <scsi/scsi.h>
+#include <linux/android_kabi.h>
struct request_queue;
struct block_device;
@@ -484,6 +485,14 @@ struct scsi_host_template {
*/
unsigned int cmd_size;
struct scsi_host_cmd_pool *cmd_pool;
+
+ /* Delay for runtime autosuspend */
+ int rpm_autosuspend_delay;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
/*
@@ -655,6 +664,12 @@ struct Scsi_Host {
unsigned short_inquiry:1;
/*
+ * Set "DBD" field in mode_sense caching mode page in case it is
+ * mandatory by LLD standard.
+ */
+ unsigned set_dbd_for_caching:1;
+
+ /*
* Optional work queue to be utilized by the transport
*/
char work_q_name[20];
diff --git a/include/sound/compress_driver.h b/include/sound/compress_driver.h
index 99855d1..325c72a 100644
--- a/include/sound/compress_driver.h
+++ b/include/sound/compress_driver.h
@@ -57,7 +57,6 @@ struct snd_compr_runtime {
* @direction: stream direction, playback/recording
* @metadata_set: metadata set flag, true when set
* @next_track: has userspace signal next track transition, true when set
- * @partial_drain: undergoing partial_drain for stream, true when set
* @private_data: pointer to DSP private data
*/
struct snd_compr_stream {
@@ -69,8 +68,8 @@ struct snd_compr_stream {
enum snd_compr_direction direction;
bool metadata_set;
bool next_track;
- bool partial_drain;
void *private_data;
+ struct snd_soc_pcm_runtime *be;
};
/**
@@ -85,6 +84,8 @@ struct snd_compr_stream {
* @get_params: retrieve the codec parameters, mandatory
* @set_metadata: Set the metadata values for a stream
* @get_metadata: retrieves the requested metadata values from stream
+ * @set_next_track_param: send codec specific data of subsequent track
+ * in gapless
* @trigger: Trigger operations like start, pause, resume, drain, stop.
* This callback is mandatory
* @pointer: Retrieve current h/w pointer information. Mandatory
@@ -107,6 +108,8 @@ struct snd_compr_ops {
struct snd_compr_metadata *metadata);
int (*get_metadata)(struct snd_compr_stream *stream,
struct snd_compr_metadata *metadata);
+ int (*set_next_track_param)(struct snd_compr_stream *stream,
+ union snd_codec_options *codec_options);
int (*trigger)(struct snd_compr_stream *stream, int cmd);
int (*pointer)(struct snd_compr_stream *stream,
struct snd_compr_tstamp *tstamp);
@@ -173,13 +176,7 @@ static inline void snd_compr_drain_notify(struct snd_compr_stream *stream)
if (snd_BUG_ON(!stream))
return;
- /* for partial_drain case we are back to running state on success */
- if (stream->partial_drain) {
- stream->runtime->state = SNDRV_PCM_STATE_RUNNING;
- stream->partial_drain = false; /* clear this flag as well */
- } else {
- stream->runtime->state = SNDRV_PCM_STATE_SETUP;
- }
+ stream->runtime->state = SNDRV_PCM_STATE_SETUP;
wake_up(&stream->runtime->sleep);
}
diff --git a/include/sound/core.h b/include/sound/core.h
index 36a5934..3b8274e 100644
--- a/include/sound/core.h
+++ b/include/sound/core.h
@@ -134,6 +134,9 @@ struct snd_card {
const struct attribute_group *dev_groups[4]; /* assigned sysfs attr */
bool registered; /* card_dev is registered? */
wait_queue_head_t remove_sleep;
+ int offline; /* if this sound card is offline */
+ unsigned long offline_change;
+ wait_queue_head_t offline_poll_wait;
#ifdef CONFIG_PM
unsigned int power_state; /* power state */
@@ -253,6 +256,7 @@ int snd_component_add(struct snd_card *card, const char *component);
int snd_card_file_add(struct snd_card *card, struct file *file);
int snd_card_file_remove(struct snd_card *card, struct file *file);
#define snd_card_unref(card) put_device(&(card)->card_dev)
+void snd_card_change_online_state(struct snd_card *card, int online);
#define snd_card_set_dev(card, devptr) ((card)->dev = (devptr))
diff --git a/include/sound/info.h b/include/sound/info.h
index becdf66..af58039 100644
--- a/include/sound/info.h
+++ b/include/sound/info.h
@@ -161,7 +161,9 @@ static inline void snd_info_set_text_ops(struct snd_info_entry *entry,
}
int snd_info_check_reserved_words(const char *str);
-
+struct snd_info_entry *snd_info_create_subdir(struct module *mod,
+ const char *name,
+ struct snd_info_entry *parent);
#else
#define snd_seq_root NULL
@@ -190,7 +192,9 @@ static inline void snd_info_set_text_ops(struct snd_info_entry *entry __attribut
void *private_data,
void (*read)(struct snd_info_entry *, struct snd_info_buffer *)) {}
static inline int snd_info_check_reserved_words(const char *str) { return 1; }
-
+static inline struct snd_info_entry *snd_info_create_subdir(
+ struct module *mod, const char *name,
+ struct snd_info_entry *parent) { return NULL; }
#endif
/*
diff --git a/include/sound/jack.h b/include/sound/jack.h
index 1e84bfb..722a20e 100644
--- a/include/sound/jack.h
+++ b/include/sound/jack.h
@@ -58,19 +58,22 @@ enum snd_jack_types {
SND_JACK_VIDEOOUT = 0x0010,
SND_JACK_AVOUT = SND_JACK_LINEOUT | SND_JACK_VIDEOOUT,
SND_JACK_LINEIN = 0x0020,
+ SND_JACK_OC_HPHL = 0x0040,
+ SND_JACK_OC_HPHR = 0x0080,
+ SND_JACK_UNSUPPORTED = 0x0100,
+ SND_JACK_MICROPHONE2 = 0x0200,
+ SND_JACK_ANC_HEADPHONE = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
+ SND_JACK_MICROPHONE2,
/* Kept separate from switches to facilitate implementation */
- SND_JACK_BTN_0 = 0x4000,
- SND_JACK_BTN_1 = 0x2000,
- SND_JACK_BTN_2 = 0x1000,
- SND_JACK_BTN_3 = 0x0800,
- SND_JACK_BTN_4 = 0x0400,
- SND_JACK_BTN_5 = 0x0200,
+ SND_JACK_BTN_0 = 0x8000,
+ SND_JACK_BTN_1 = 0x4000,
+ SND_JACK_BTN_2 = 0x2000,
+ SND_JACK_BTN_3 = 0x1000,
+ SND_JACK_BTN_4 = 0x0800,
+ SND_JACK_BTN_5 = 0x0400,
};
-/* Keep in sync with definitions above */
-#define SND_JACK_SWITCH_TYPES 6
-
struct snd_jack {
struct list_head kctl_list;
struct snd_card *card;
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index d6bd3ca..a94e062 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -68,6 +68,8 @@ struct snd_pcm_ops {
int (*close)(struct snd_pcm_substream *substream);
int (*ioctl)(struct snd_pcm_substream * substream,
unsigned int cmd, void *arg);
+ int (*compat_ioctl)(struct snd_pcm_substream *substream,
+ unsigned int cmd, void *arg);
int (*hw_params)(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params);
int (*hw_free)(struct snd_pcm_substream *substream);
@@ -78,6 +80,9 @@ struct snd_pcm_ops {
struct timespec *system_ts, struct timespec *audio_ts,
struct snd_pcm_audio_tstamp_config *audio_tstamp_config,
struct snd_pcm_audio_tstamp_report *audio_tstamp_report);
+ int (*delay_blk)(struct snd_pcm_substream *substream);
+ int (*wall_clock)(struct snd_pcm_substream *substream,
+ struct timespec *audio_ts);
int (*fill_silence)(struct snd_pcm_substream *substream, int channel,
unsigned long pos, unsigned long bytes);
int (*copy_user)(struct snd_pcm_substream *substream, int channel,
@@ -89,6 +94,7 @@ struct snd_pcm_ops {
unsigned long offset);
int (*mmap)(struct snd_pcm_substream *substream, struct vm_area_struct *vma);
int (*ack)(struct snd_pcm_substream *substream);
+ int (*restart)(struct snd_pcm_substream *substream);
};
/*
@@ -117,6 +123,11 @@ struct snd_pcm_ops {
#define SNDRV_PCM_POS_XRUN ((snd_pcm_uframes_t)-1)
+#define SNDRV_DMA_MODE (0)
+#define SNDRV_NON_DMA_MODE (1 << 0)
+#define SNDRV_RENDER_STOPPED (1 << 1)
+#define SNDRV_RENDER_RUNNING (1 << 2)
+
/* If you change this don't forget to change rates[] table in pcm_native.c */
#define SNDRV_PCM_RATE_5512 (1<<0) /* 5512Hz */
#define SNDRV_PCM_RATE_8000 (1<<1) /* 8000Hz */
@@ -131,6 +142,8 @@ struct snd_pcm_ops {
#define SNDRV_PCM_RATE_96000 (1<<10) /* 96000Hz */
#define SNDRV_PCM_RATE_176400 (1<<11) /* 176400Hz */
#define SNDRV_PCM_RATE_192000 (1<<12) /* 192000Hz */
+#define SNDRV_PCM_RATE_352800 (1<<13) /* 352800Hz */
+#define SNDRV_PCM_RATE_384000 (1<<14) /* 384000Hz */
#define SNDRV_PCM_RATE_CONTINUOUS (1<<30) /* continuous range */
#define SNDRV_PCM_RATE_KNOT (1<<31) /* supports more non-continuos rates */
@@ -143,6 +156,9 @@ struct snd_pcm_ops {
SNDRV_PCM_RATE_88200|SNDRV_PCM_RATE_96000)
#define SNDRV_PCM_RATE_8000_192000 (SNDRV_PCM_RATE_8000_96000|SNDRV_PCM_RATE_176400|\
SNDRV_PCM_RATE_192000)
+#define SNDRV_PCM_RATE_8000_384000 (SNDRV_PCM_RATE_8000_192000|\
+ SNDRV_PCM_RATE_352800|\
+ SNDRV_PCM_RATE_384000)
#define _SNDRV_PCM_FMTBIT(fmt) (1ULL << (__force int)SNDRV_PCM_FORMAT_##fmt)
#define SNDRV_PCM_FMTBIT_S8 _SNDRV_PCM_FMTBIT(S8)
#define SNDRV_PCM_FMTBIT_U8 _SNDRV_PCM_FMTBIT(U8)
@@ -379,6 +395,7 @@ struct snd_pcm_runtime {
unsigned int rate_num;
unsigned int rate_den;
unsigned int no_period_wakeup: 1;
+ unsigned int render_flag;
/* -- SW params -- */
int tstamp_mode; /* mmap timestamp is updated */
@@ -459,6 +476,7 @@ struct snd_pcm_substream {
const struct snd_pcm_ops *ops;
/* -- runtime information -- */
struct snd_pcm_runtime *runtime;
+ spinlock_t runtime_lock;
/* -- timer section -- */
struct snd_timer *timer; /* timer */
unsigned timer_running: 1; /* time is running */
@@ -494,6 +512,7 @@ struct snd_pcm_substream {
#endif /* CONFIG_SND_VERBOSE_PROCFS */
/* misc flags */
unsigned int hw_opened: 1;
+ unsigned int hw_no_buffer: 1; /* substream may not have a buffer */
};
#define SUBSTREAM_BUSY(substream) ((substream)->ref_count > 0)
@@ -519,6 +538,8 @@ struct snd_pcm_str {
#endif
#endif
struct snd_kcontrol *chmap_kctl; /* channel-mapping controls */
+ struct snd_kcontrol *vol_kctl; /* volume controls */
+ struct snd_kcontrol *usr_kctl; /* user controls */
struct device dev;
};
@@ -1439,6 +1460,54 @@ static inline u64 pcm_format_to_bits(snd_pcm_format_t pcm_format)
return 1ULL << (__force int) pcm_format;
}
+/*
+ * PCM Volume control API
+ */
+/* array element of volume */
+struct snd_pcm_volume_elem {
+ int volume;
+};
+
+/* pp information; retrieved via snd_kcontrol_chip() */
+struct snd_pcm_volume {
+ struct snd_pcm *pcm; /* assigned PCM instance */
+ int stream; /* PLAYBACK or CAPTURE */
+ struct snd_kcontrol *kctl;
+ const struct snd_pcm_volume_elem *volume;
+ int max_length;
+ void *private_data; /* optional: private data pointer */
+};
+
+int snd_pcm_add_volume_ctls(struct snd_pcm *pcm, int stream,
+ const struct snd_pcm_volume_elem *volume,
+ int max_length,
+ unsigned long private_value,
+ struct snd_pcm_volume **info_ret);
+
+/*
+ * PCM User control API
+ */
+/* array element of usr elem */
+struct snd_pcm_usr_elem {
+ int val[128];
+};
+
+/* pp information; retrieved via snd_kcontrol_chip() */
+struct snd_pcm_usr {
+ struct snd_pcm *pcm; /* assigned PCM instance */
+ int stream; /* PLAYBACK or CAPTURE */
+ struct snd_kcontrol *kctl;
+ const struct snd_pcm_usr_elem *usr;
+ int max_length;
+ void *private_data; /* optional: private data pointer */
+};
+
+int snd_pcm_add_usr_ctls(struct snd_pcm *pcm, int stream,
+ const struct snd_pcm_usr_elem *usr,
+ int max_length, int max_control_str_len,
+ unsigned long private_value,
+ struct snd_pcm_usr **info_ret);
+
/* printk helpers */
#define pcm_err(pcm, fmt, args...) \
dev_err((pcm)->card->dev, fmt, ##args)
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 88aa48e..65ca725 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -239,6 +239,14 @@
.get = xhandler_get, .put = xhandler_put, \
.private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
xmax, xinvert) }
+#define SOC_SINGLE_MULTI_EXT(xname, xreg, xshift, xmax, xinvert, xcount,\
+ xhandler_get, xhandler_put) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
+ .info = snd_soc_info_multi_ext, \
+ .get = xhandler_get, .put = xhandler_put, \
+ .private_value = (unsigned long)&(struct soc_multi_mixer_control) \
+ {.reg = xreg, .shift = xshift, .rshift = xshift, .max = xmax, \
+ .count = xcount, .platform_max = xmax, .invert = xinvert} }
#define SOC_SINGLE_EXT_TLV(xname, xreg, xshift, xmax, xinvert,\
xhandler_get, xhandler_put, tlv_array) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
@@ -372,6 +380,10 @@
#define SND_SOC_COMP_ORDER_LATE 1
#define SND_SOC_COMP_ORDER_LAST 2
+/* DAI Link Host Mode Support */
+#define SND_SOC_DAI_LINK_NO_HOST 0x1
+#define SND_SOC_DAI_LINK_OPT_HOST 0x2
+
/*
* Bias levels
*
@@ -548,6 +560,8 @@ static inline void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
}
#endif
+void snd_soc_card_change_online_state(struct snd_soc_card *soc_card,
+ int online);
struct snd_ac97 *snd_soc_alloc_ac97_component(struct snd_soc_component *component);
struct snd_ac97 *snd_soc_new_ac97_component(struct snd_soc_component *component,
unsigned int id, unsigned int id_mask);
@@ -635,6 +649,8 @@ int snd_soc_get_strobe(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol);
int snd_soc_put_strobe(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol);
+int snd_soc_info_multi_ext(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo);
/**
* struct snd_soc_jack_pin - Describes a pin to update based on jack detection
@@ -727,6 +743,7 @@ struct snd_soc_pcm_stream {
unsigned int channels_min; /* min channels */
unsigned int channels_max; /* max channels */
unsigned int sig_bits; /* number of bits of content */
+ const char *aif_name; /* DAPM AIF widget name */
};
/* SoC audio ops */
@@ -790,6 +807,16 @@ struct snd_soc_component_driver {
int (*set_bias_level)(struct snd_soc_component *component,
enum snd_soc_bias_level level);
+ /*
+ * For platform-caused delay reporting, where the thread blocks waiting
+ * for the delay amount to be determined. Defining this will cause the
+ * ASoC core to skip calling the delay callbacks for all components in
+ * the runtime.
+ * Optional.
+ */
+ snd_pcm_sframes_t (*delay_blk)(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai);
+
const struct snd_pcm_ops *ops;
const struct snd_compr_ops *compr_ops;
@@ -877,6 +904,14 @@ struct snd_soc_dai_link_component {
const char *dai_name;
};
+enum snd_soc_async_ops {
+ ASYNC_DPCM_SND_SOC_OPEN = 1 << 0,
+ ASYNC_DPCM_SND_SOC_CLOSE = 1 << 1,
+ ASYNC_DPCM_SND_SOC_PREPARE = 1 << 2,
+ ASYNC_DPCM_SND_SOC_HW_PARAMS = 1 << 3,
+ ASYNC_DPCM_SND_SOC_FREE = 1 << 4,
+};
+
struct snd_soc_dai_link {
/* config - must be set by machine driver */
const char *name; /* Codec name */
@@ -956,6 +991,15 @@ struct snd_soc_dai_link {
/* This DAI link can route to other DAI links at runtime (Frontend)*/
unsigned int dynamic:1;
+ /* This DAI link can be reconfigured at runtime (Backend) */
+ unsigned int dynamic_be:1;
+
+ /*
+ * This DAI can support no host IO (no pcm data is
+ * copied to from host)
+ */
+ unsigned int no_host_mode:2;
+
/* DPCM capture and Playback support */
unsigned int dpcm_capture:1;
unsigned int dpcm_playback:1;
@@ -975,6 +1019,9 @@ struct snd_soc_dai_link {
struct list_head list; /* DAI link list of the soc card */
struct snd_soc_dobj dobj; /* For topology */
+
+ /* this value determines what all ops can be started asynchronously */
+ enum snd_soc_async_ops async_ops;
};
struct snd_soc_codec_conf {
@@ -1020,6 +1067,7 @@ struct snd_soc_card {
struct mutex mutex;
struct mutex dapm_mutex;
+ struct mutex dapm_power_mutex;
bool instantiated;
bool topology_shortname_created;
@@ -1130,6 +1178,8 @@ struct snd_soc_pcm_runtime {
long pmdown_time;
+ /* err in case of ops failed */
+ int err_ops;
/* runtime devices */
struct snd_pcm *pcm;
struct snd_compr *compr;
@@ -1187,6 +1237,11 @@ struct soc_mreg_control {
unsigned int regbase, regcount, nbits, invert;
};
+struct soc_multi_mixer_control {
+ int min, max, platform_max, count;
+ unsigned int reg, rreg, shift, rshift, invert;
+};
+
/* enumerated kcontrol */
struct soc_enum {
int reg;
@@ -1310,6 +1365,8 @@ int snd_soc_component_update_bits_async(struct snd_soc_component *component,
void snd_soc_component_async_complete(struct snd_soc_component *component);
int snd_soc_component_test_bits(struct snd_soc_component *component,
unsigned int reg, unsigned int mask, unsigned int value);
+struct snd_soc_component *soc_find_component(
+ const struct device_node *of_node, const char *name);
/* component wide operations */
int snd_soc_component_set_sysclk(struct snd_soc_component *component,
diff --git a/include/trace/events/OWNERS b/include/trace/events/OWNERS
new file mode 100644
index 0000000..de3838b
--- /dev/null
+++ b/include/trace/events/OWNERS
@@ -0,0 +1,2 @@
+# include OWNERS from the authoritative android-mainline branch
+include kernel/common:android-mainline:/include/trace/events/OWNERS
diff --git a/include/trace/events/android_fs.h b/include/trace/events/android_fs.h
new file mode 100644
index 0000000..0ee4a07
--- /dev/null
+++ b/include/trace/events/android_fs.h
@@ -0,0 +1,74 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM android_fs
+
+#if !defined(_TRACE_ANDROID_FS_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_ANDROID_FS_H
+
+#include <linux/tracepoint.h>
+#include <trace/events/android_fs_template.h>
+
+DEFINE_EVENT(android_fs_data_start_template, android_fs_dataread_start,
+ TP_PROTO(struct inode *inode, loff_t offset, int bytes,
+ pid_t pid, char *pathname, char *command),
+ TP_ARGS(inode, offset, bytes, pid, pathname, command));
+
+DEFINE_EVENT(android_fs_data_end_template, android_fs_dataread_end,
+ TP_PROTO(struct inode *inode, loff_t offset, int bytes),
+ TP_ARGS(inode, offset, bytes));
+
+DEFINE_EVENT(android_fs_data_start_template, android_fs_datawrite_start,
+ TP_PROTO(struct inode *inode, loff_t offset, int bytes,
+ pid_t pid, char *pathname, char *command),
+ TP_ARGS(inode, offset, bytes, pid, pathname, command));
+
+DEFINE_EVENT(android_fs_data_end_template, android_fs_datawrite_end,
+ TP_PROTO(struct inode *inode, loff_t offset, int bytes),
+ TP_ARGS(inode, offset, bytes));
+
+DEFINE_EVENT(android_fs_fsync_start_template, android_fs_fsync_start,
+ TP_PROTO(struct inode *inode,
+ pid_t pid, char *pathname, char *command),
+ TP_ARGS(inode, pid, pathname, command));
+
+DEFINE_EVENT(android_fs_data_end_template, android_fs_fsync_end,
+ TP_PROTO(struct inode *inode, loff_t offset, int bytes),
+ TP_ARGS(inode, offset, bytes));
+
+#endif /* _TRACE_ANDROID_FS_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
+
+#ifndef ANDROID_FSTRACE_GET_PATHNAME
+#define ANDROID_FSTRACE_GET_PATHNAME
+
+/* Sizes an on-stack array, so careful if sizing this up ! */
+#define MAX_TRACE_PATHBUF_LEN 256
+
+static inline char *
+android_fstrace_get_pathname(char *buf, int buflen, struct inode *inode)
+{
+ char *path;
+ struct dentry *d;
+
+ /*
+ * d_obtain_alias() will either iput() if it locates an existing
+ * dentry or transfer the reference to the new dentry created.
+ * So get an extra reference here.
+ */
+ ihold(inode);
+ d = d_obtain_alias(inode);
+ if (likely(!IS_ERR(d))) {
+ path = dentry_path_raw(d, buf, buflen);
+ if (unlikely(IS_ERR(path))) {
+ strcpy(buf, "ERROR");
+ path = buf;
+ }
+ dput(d);
+ } else {
+ strcpy(buf, "ERROR");
+ path = buf;
+ }
+ return path;
+}
+#endif
diff --git a/include/trace/events/android_fs_template.h b/include/trace/events/android_fs_template.h
new file mode 100644
index 0000000..0832c26
--- /dev/null
+++ b/include/trace/events/android_fs_template.h
@@ -0,0 +1,98 @@
+#if !defined(_TRACE_ANDROID_FS_TEMPLATE_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_ANDROID_FS_TEMPLATE_H
+
+#include <linux/tracepoint.h>
+
+DECLARE_EVENT_CLASS(android_fs_data_start_template,
+ TP_PROTO(struct inode *inode, loff_t offset, int bytes,
+ pid_t pid, char *pathname, char *command),
+ TP_ARGS(inode, offset, bytes, pid, pathname, command),
+ TP_STRUCT__entry(
+ __string(pathbuf, pathname);
+ __field(loff_t, offset);
+ __field(int, bytes);
+ __field(loff_t, i_size);
+ __string(cmdline, command);
+ __field(pid_t, pid);
+ __field(ino_t, ino);
+ ),
+ TP_fast_assign(
+ {
+ /*
+ * Replace the spaces in filenames and cmdlines
+ * because this screws up the tooling that parses
+ * the traces.
+ */
+ __assign_str(pathbuf, pathname);
+ (void)strreplace(__get_str(pathbuf), ' ', '_');
+ __entry->offset = offset;
+ __entry->bytes = bytes;
+ __entry->i_size = i_size_read(inode);
+ __assign_str(cmdline, command);
+ (void)strreplace(__get_str(cmdline), ' ', '_');
+ __entry->pid = pid;
+ __entry->ino = inode->i_ino;
+ }
+ ),
+ TP_printk("entry_name %s, offset %llu, bytes %d, cmdline %s,"
+ " pid %d, i_size %llu, ino %lu",
+ __get_str(pathbuf), __entry->offset, __entry->bytes,
+ __get_str(cmdline), __entry->pid, __entry->i_size,
+ (unsigned long) __entry->ino)
+);
+
+DECLARE_EVENT_CLASS(android_fs_data_end_template,
+ TP_PROTO(struct inode *inode, loff_t offset, int bytes),
+ TP_ARGS(inode, offset, bytes),
+ TP_STRUCT__entry(
+ __field(ino_t, ino);
+ __field(loff_t, offset);
+ __field(int, bytes);
+ ),
+ TP_fast_assign(
+ {
+ __entry->ino = inode->i_ino;
+ __entry->offset = offset;
+ __entry->bytes = bytes;
+ }
+ ),
+ TP_printk("ino %lu, offset %llu, bytes %d",
+ (unsigned long) __entry->ino,
+ __entry->offset, __entry->bytes)
+);
+
+DECLARE_EVENT_CLASS(android_fs_fsync_start_template,
+ TP_PROTO(struct inode *inode,
+ pid_t pid, char *pathname, char *command),
+ TP_ARGS(inode, pid, pathname, command),
+ TP_STRUCT__entry(
+ __string(pathbuf, pathname);
+ __field(loff_t, i_size);
+ __string(cmdline, command);
+ __field(pid_t, pid);
+ __field(ino_t, ino);
+ ),
+ TP_fast_assign(
+ {
+ /*
+ * Replace the spaces in filenames and cmdlines
+ * because this screws up the tooling that parses
+ * the traces.
+ */
+ __assign_str(pathbuf, pathname);
+ (void)strreplace(__get_str(pathbuf), ' ', '_');
+ __entry->i_size = i_size_read(inode);
+ __assign_str(cmdline, command);
+ (void)strreplace(__get_str(cmdline), ' ', '_');
+ __entry->pid = pid;
+ __entry->ino = inode->i_ino;
+ }
+ ),
+ TP_printk("entry_name %s, cmdline %s,"
+ " pid %d, i_size %llu, ino %lu",
+ __get_str(pathbuf),
+ __get_str(cmdline), __entry->pid, __entry->i_size,
+ (unsigned long) __entry->ino)
+);
+
+#endif /* _TRACE_ANDROID_FS_TEMPLATE_H */
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 7956989..3c7c018 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -49,6 +49,8 @@ TRACE_DEFINE_ENUM(CP_SYNC);
TRACE_DEFINE_ENUM(CP_RECOVERY);
TRACE_DEFINE_ENUM(CP_DISCARD);
TRACE_DEFINE_ENUM(CP_TRIMMED);
+TRACE_DEFINE_ENUM(CP_PAUSE);
+TRACE_DEFINE_ENUM(CP_RESIZE);
#define show_block_type(type) \
__print_symbolic(type, \
@@ -134,13 +136,15 @@ TRACE_DEFINE_ENUM(CP_TRIMMED);
{ CP_SYNC, "Sync" }, \
{ CP_RECOVERY, "Recovery" }, \
{ CP_DISCARD, "Discard" }, \
- { CP_UMOUNT, "Umount" }, \
- { CP_TRIMMED, "Trimmed" })
+ { CP_PAUSE, "Pause" }, \
+ { CP_TRIMMED, "Trimmed" }, \
+ { CP_RESIZE, "Resize" })
#define show_fsync_cpreason(type) \
__print_symbolic(type, \
{ CP_NO_NEEDED, "no needed" }, \
{ CP_NON_REGULAR, "non regular" }, \
+ { CP_COMPRESSED, "compressed" }, \
{ CP_HARDLINK, "hardlink" }, \
{ CP_SB_NEED_CP, "sb needs cp" }, \
{ CP_WRONG_PINO, "wrong pino" }, \
@@ -150,6 +154,23 @@ TRACE_DEFINE_ENUM(CP_TRIMMED);
{ CP_SPEC_LOG_NUM, "log type is 2" }, \
{ CP_RECOVER_DIR, "dir needs recovery" })
+#define show_shutdown_mode(type) \
+ __print_symbolic(type, \
+ { F2FS_GOING_DOWN_FULLSYNC, "full sync" }, \
+ { F2FS_GOING_DOWN_METASYNC, "meta sync" }, \
+ { F2FS_GOING_DOWN_NOSYNC, "no sync" }, \
+ { F2FS_GOING_DOWN_METAFLUSH, "meta flush" }, \
+ { F2FS_GOING_DOWN_NEED_FSCK, "need fsck" })
+
+#define show_compress_algorithm(type) \
+ __print_symbolic(type, \
+ { COMPRESS_LZO, "LZO" }, \
+ { COMPRESS_LZ4, "LZ4" }, \
+ { COMPRESS_ZSTD, "ZSTD" })
+
+struct f2fs_sb_info;
+struct f2fs_io_info;
+struct extent_info;
struct victim_sel_policy;
struct f2fs_map_blocks;
@@ -523,6 +544,37 @@ TRACE_EVENT(f2fs_truncate_partial_nodes,
__entry->err)
);
+TRACE_EVENT(f2fs_file_write_iter,
+
+ TP_PROTO(struct inode *inode, unsigned long offset,
+ unsigned long length, int ret),
+
+ TP_ARGS(inode, offset, length, ret),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(ino_t, ino)
+ __field(unsigned long, offset)
+ __field(unsigned long, length)
+ __field(int, ret)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = inode->i_sb->s_dev;
+ __entry->ino = inode->i_ino;
+ __entry->offset = offset;
+ __entry->length = length;
+ __entry->ret = ret;
+ ),
+
+ TP_printk("dev = (%d,%d), ino = %lu, "
+ "offset = %lu, length = %lu, written(err) = %d",
+ show_dev_ino(__entry),
+ __entry->offset,
+ __entry->length,
+ __entry->ret)
+);
+
TRACE_EVENT(f2fs_map_blocks,
TP_PROTO(struct inode *inode, struct f2fs_map_blocks *map, int ret),
@@ -534,6 +586,9 @@ TRACE_EVENT(f2fs_map_blocks,
__field(block_t, m_lblk)
__field(block_t, m_pblk)
__field(unsigned int, m_len)
+ __field(unsigned int, m_flags)
+ __field(int, m_seg_type)
+ __field(bool, m_may_create)
__field(int, ret)
),
@@ -543,15 +598,22 @@ TRACE_EVENT(f2fs_map_blocks,
__entry->m_lblk = map->m_lblk;
__entry->m_pblk = map->m_pblk;
__entry->m_len = map->m_len;
+ __entry->m_flags = map->m_flags;
+ __entry->m_seg_type = map->m_seg_type;
+ __entry->m_may_create = map->m_may_create;
__entry->ret = ret;
),
TP_printk("dev = (%d,%d), ino = %lu, file offset = %llu, "
- "start blkaddr = 0x%llx, len = 0x%llx, err = %d",
+ "start blkaddr = 0x%llx, len = 0x%llx, flags = %u,"
+ "seg_type = %d, may_create = %d, err = %d",
show_dev_ino(__entry),
(unsigned long long)__entry->m_lblk,
(unsigned long long)__entry->m_pblk,
(unsigned long long)__entry->m_len,
+ __entry->m_flags,
+ __entry->m_seg_type,
+ __entry->m_may_create,
__entry->ret)
);
@@ -977,8 +1039,8 @@ DECLARE_EVENT_CLASS(f2fs__submit_page_bio,
),
TP_fast_assign(
- __entry->dev = page->mapping->host->i_sb->s_dev;
- __entry->ino = page->mapping->host->i_ino;
+ __entry->dev = page_file_mapping(page)->host->i_sb->s_dev;
+ __entry->ino = page_file_mapping(page)->host->i_ino;
__entry->index = page->index;
__entry->old_blkaddr = fio->old_blkaddr;
__entry->new_blkaddr = fio->new_blkaddr;
@@ -1165,10 +1227,11 @@ DECLARE_EVENT_CLASS(f2fs__page,
),
TP_fast_assign(
- __entry->dev = page->mapping->host->i_sb->s_dev;
- __entry->ino = page->mapping->host->i_ino;
+ __entry->dev = page_file_mapping(page)->host->i_sb->s_dev;
+ __entry->ino = page_file_mapping(page)->host->i_ino;
__entry->type = type;
- __entry->dir = S_ISDIR(page->mapping->host->i_mode);
+ __entry->dir =
+ S_ISDIR(page_file_mapping(page)->host->i_mode);
__entry->index = page->index;
__entry->dirty = PageDirty(page);
__entry->uptodate = PageUptodate(page);
@@ -1233,6 +1296,32 @@ DEFINE_EVENT(f2fs__page, f2fs_commit_inmem_page,
TP_ARGS(page, type)
);
+TRACE_EVENT(f2fs_filemap_fault,
+
+ TP_PROTO(struct inode *inode, pgoff_t index, unsigned long ret),
+
+ TP_ARGS(inode, index, ret),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(ino_t, ino)
+ __field(pgoff_t, index)
+ __field(unsigned long, ret)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = inode->i_sb->s_dev;
+ __entry->ino = inode->i_ino;
+ __entry->index = index;
+ __entry->ret = ret;
+ ),
+
+ TP_printk("dev = (%d,%d), ino = %lu, index = %lu, ret = %lx",
+ show_dev_ino(__entry),
+ (unsigned long)__entry->index,
+ __entry->ret)
+);
+
TRACE_EVENT(f2fs_writepages,
TP_PROTO(struct inode *inode, struct writeback_control *wbc, int type),
@@ -1617,6 +1706,200 @@ DEFINE_EVENT(f2fs_sync_dirty_inodes, f2fs_sync_dirty_inodes_exit,
TP_ARGS(sb, type, count)
);
+TRACE_EVENT(f2fs_shutdown,
+
+ TP_PROTO(struct f2fs_sb_info *sbi, unsigned int mode, int ret),
+
+ TP_ARGS(sbi, mode, ret),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(unsigned int, mode)
+ __field(int, ret)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = sbi->sb->s_dev;
+ __entry->mode = mode;
+ __entry->ret = ret;
+ ),
+
+ TP_printk("dev = (%d,%d), mode: %s, ret:%d",
+ show_dev(__entry->dev),
+ show_shutdown_mode(__entry->mode),
+ __entry->ret)
+);
+
+DECLARE_EVENT_CLASS(f2fs_zip_start,
+
+ TP_PROTO(struct inode *inode, pgoff_t cluster_idx,
+ unsigned int cluster_size, unsigned char algtype),
+
+ TP_ARGS(inode, cluster_idx, cluster_size, algtype),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(ino_t, ino)
+ __field(pgoff_t, idx)
+ __field(unsigned int, size)
+ __field(unsigned int, algtype)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = inode->i_sb->s_dev;
+ __entry->ino = inode->i_ino;
+ __entry->idx = cluster_idx;
+ __entry->size = cluster_size;
+ __entry->algtype = algtype;
+ ),
+
+ TP_printk("dev = (%d,%d), ino = %lu, cluster_idx:%lu, "
+ "cluster_size = %u, algorithm = %s",
+ show_dev_ino(__entry),
+ __entry->idx,
+ __entry->size,
+ show_compress_algorithm(__entry->algtype))
+);
+
+DECLARE_EVENT_CLASS(f2fs_zip_end,
+
+ TP_PROTO(struct inode *inode, pgoff_t cluster_idx,
+ unsigned int compressed_size, int ret),
+
+ TP_ARGS(inode, cluster_idx, compressed_size, ret),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(ino_t, ino)
+ __field(pgoff_t, idx)
+ __field(unsigned int, size)
+ __field(unsigned int, ret)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = inode->i_sb->s_dev;
+ __entry->ino = inode->i_ino;
+ __entry->idx = cluster_idx;
+ __entry->size = compressed_size;
+ __entry->ret = ret;
+ ),
+
+ TP_printk("dev = (%d,%d), ino = %lu, cluster_idx:%lu, "
+ "compressed_size = %u, ret = %d",
+ show_dev_ino(__entry),
+ __entry->idx,
+ __entry->size,
+ __entry->ret)
+);
+
+DEFINE_EVENT(f2fs_zip_start, f2fs_compress_pages_start,
+
+ TP_PROTO(struct inode *inode, pgoff_t cluster_idx,
+ unsigned int cluster_size, unsigned char algtype),
+
+ TP_ARGS(inode, cluster_idx, cluster_size, algtype)
+);
+
+DEFINE_EVENT(f2fs_zip_start, f2fs_decompress_pages_start,
+
+ TP_PROTO(struct inode *inode, pgoff_t cluster_idx,
+ unsigned int cluster_size, unsigned char algtype),
+
+ TP_ARGS(inode, cluster_idx, cluster_size, algtype)
+);
+
+DEFINE_EVENT(f2fs_zip_end, f2fs_compress_pages_end,
+
+ TP_PROTO(struct inode *inode, pgoff_t cluster_idx,
+ unsigned int compressed_size, int ret),
+
+ TP_ARGS(inode, cluster_idx, compressed_size, ret)
+);
+
+DEFINE_EVENT(f2fs_zip_end, f2fs_decompress_pages_end,
+
+ TP_PROTO(struct inode *inode, pgoff_t cluster_idx,
+ unsigned int compressed_size, int ret),
+
+ TP_ARGS(inode, cluster_idx, compressed_size, ret)
+);
+
+TRACE_EVENT(f2fs_iostat,
+
+ TP_PROTO(struct f2fs_sb_info *sbi, unsigned long long *iostat),
+
+ TP_ARGS(sbi, iostat),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(unsigned long long, app_dio)
+ __field(unsigned long long, app_bio)
+ __field(unsigned long long, app_wio)
+ __field(unsigned long long, app_mio)
+ __field(unsigned long long, fs_dio)
+ __field(unsigned long long, fs_nio)
+ __field(unsigned long long, fs_mio)
+ __field(unsigned long long, fs_gc_dio)
+ __field(unsigned long long, fs_gc_nio)
+ __field(unsigned long long, fs_cp_dio)
+ __field(unsigned long long, fs_cp_nio)
+ __field(unsigned long long, fs_cp_mio)
+ __field(unsigned long long, app_drio)
+ __field(unsigned long long, app_brio)
+ __field(unsigned long long, app_rio)
+ __field(unsigned long long, app_mrio)
+ __field(unsigned long long, fs_drio)
+ __field(unsigned long long, fs_gdrio)
+ __field(unsigned long long, fs_cdrio)
+ __field(unsigned long long, fs_nrio)
+ __field(unsigned long long, fs_mrio)
+ __field(unsigned long long, fs_discard)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = sbi->sb->s_dev;
+ __entry->app_dio = iostat[APP_DIRECT_IO];
+ __entry->app_bio = iostat[APP_BUFFERED_IO];
+ __entry->app_wio = iostat[APP_WRITE_IO];
+ __entry->app_mio = iostat[APP_MAPPED_IO];
+ __entry->fs_dio = iostat[FS_DATA_IO];
+ __entry->fs_nio = iostat[FS_NODE_IO];
+ __entry->fs_mio = iostat[FS_META_IO];
+ __entry->fs_gc_dio = iostat[FS_GC_DATA_IO];
+ __entry->fs_gc_nio = iostat[FS_GC_NODE_IO];
+ __entry->fs_cp_dio = iostat[FS_CP_DATA_IO];
+ __entry->fs_cp_nio = iostat[FS_CP_NODE_IO];
+ __entry->fs_cp_mio = iostat[FS_CP_META_IO];
+ __entry->app_drio = iostat[APP_DIRECT_READ_IO];
+ __entry->app_brio = iostat[APP_BUFFERED_READ_IO];
+ __entry->app_rio = iostat[APP_READ_IO];
+ __entry->app_mrio = iostat[APP_MAPPED_READ_IO];
+ __entry->fs_drio = iostat[FS_DATA_READ_IO];
+ __entry->fs_gdrio = iostat[FS_GDATA_READ_IO];
+ __entry->fs_cdrio = iostat[FS_CDATA_READ_IO];
+ __entry->fs_nrio = iostat[FS_NODE_READ_IO];
+ __entry->fs_mrio = iostat[FS_META_READ_IO];
+ __entry->fs_discard = iostat[FS_DISCARD];
+ ),
+
+ TP_printk("dev = (%d,%d), "
+ "app [write=%llu (direct=%llu, buffered=%llu), mapped=%llu], "
+ "fs [data=%llu, node=%llu, meta=%llu, discard=%llu], "
+ "gc [data=%llu, node=%llu], "
+ "cp [data=%llu, node=%llu, meta=%llu], "
+ "app [read=%llu (direct=%llu, buffered=%llu), mapped=%llu], "
+ "fs [data=%llu, (gc_data=%llu, compr_data=%llu), "
+ "node=%llu, meta=%llu]",
+ show_dev(__entry->dev), __entry->app_wio, __entry->app_dio,
+ __entry->app_bio, __entry->app_mio, __entry->fs_dio,
+ __entry->fs_nio, __entry->fs_mio, __entry->fs_discard,
+ __entry->fs_gc_dio, __entry->fs_gc_nio, __entry->fs_cp_dio,
+ __entry->fs_cp_nio, __entry->fs_cp_mio,
+ __entry->app_rio, __entry->app_drio, __entry->app_brio,
+ __entry->app_mrio, __entry->fs_drio, __entry->fs_gdrio,
+ __entry->fs_cdrio, __entry->fs_nrio, __entry->fs_mrio)
+);
+
#endif /* _TRACE_F2FS_H */
/* This part must be outside protection */
diff --git a/include/trace/events/gpu_mem.h b/include/trace/events/gpu_mem.h
new file mode 100644
index 0000000..1897822
--- /dev/null
+++ b/include/trace/events/gpu_mem.h
@@ -0,0 +1,57 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * GPU memory trace points
+ *
+ * Copyright (C) 2020 Google, Inc.
+ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM gpu_mem
+
+#if !defined(_TRACE_GPU_MEM_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_GPU_MEM_H
+
+#include <linux/tracepoint.h>
+
+/*
+ * The gpu_memory_total event indicates that there's an update to either the
+ * global or process total gpu memory counters.
+ *
+ * This event should be emitted whenever the kernel device driver allocates,
+ * frees, imports, unimports memory in the GPU addressable space.
+ *
+ * @gpu_id: This is the gpu id.
+ *
+ * @pid: Put 0 for global total, while positive pid for process total.
+ *
+ * @size: Virtual size of the allocation in bytes.
+ *
+ */
+TRACE_EVENT(gpu_mem_total,
+
+ TP_PROTO(uint32_t gpu_id, uint32_t pid, uint64_t size),
+
+ TP_ARGS(gpu_id, pid, size),
+
+ TP_STRUCT__entry(
+ __field(uint32_t, gpu_id)
+ __field(uint32_t, pid)
+ __field(uint64_t, size)
+ ),
+
+ TP_fast_assign(
+ __entry->gpu_id = gpu_id;
+ __entry->pid = pid;
+ __entry->size = size;
+ ),
+
+ TP_printk("gpu_id=%u pid=%u size=%llu",
+ __entry->gpu_id,
+ __entry->pid,
+ __entry->size)
+);
+
+#endif /* _TRACE_GPU_MEM_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
diff --git a/include/trace/events/iommu.h b/include/trace/events/iommu.h
index 72b4582..0db6f7f 100644
--- a/include/trace/events/iommu.h
+++ b/include/trace/events/iommu.h
@@ -12,8 +12,10 @@
#define _TRACE_IOMMU_H
#include <linux/tracepoint.h>
+#include <linux/iommu.h>
struct device;
+struct iommu_domain;
DECLARE_EVENT_CLASS(iommu_group_event,
@@ -85,47 +87,84 @@ DEFINE_EVENT(iommu_device_event, detach_device_from_domain,
TRACE_EVENT(map,
- TP_PROTO(unsigned long iova, phys_addr_t paddr, size_t size),
+ TP_PROTO(struct iommu_domain *domain, unsigned long iova,
+ phys_addr_t paddr, size_t size, int prot),
- TP_ARGS(iova, paddr, size),
+ TP_ARGS(domain, iova, paddr, size, prot),
TP_STRUCT__entry(
+ __string(name, domain->name)
__field(u64, iova)
__field(u64, paddr)
__field(size_t, size)
+ __field(int, prot)
),
TP_fast_assign(
+ __assign_str(name, domain->name);
__entry->iova = iova;
__entry->paddr = paddr;
__entry->size = size;
+ __entry->prot = prot;
),
- TP_printk("IOMMU: iova=0x%016llx paddr=0x%016llx size=%zu",
- __entry->iova, __entry->paddr, __entry->size
+ TP_printk("IOMMU:%s iova=0x%016llx paddr=0x%016llx size=0x%zx prot=0x%x",
+ __get_str(name), __entry->iova, __entry->paddr,
+ __entry->size, __entry->prot
)
);
TRACE_EVENT(unmap,
- TP_PROTO(unsigned long iova, size_t size, size_t unmapped_size),
+ TP_PROTO(struct iommu_domain *domain, unsigned long iova, size_t size,
+ size_t unmapped_size),
- TP_ARGS(iova, size, unmapped_size),
+ TP_ARGS(domain, iova, size, unmapped_size),
TP_STRUCT__entry(
+ __string(name, domain->name)
__field(u64, iova)
__field(size_t, size)
__field(size_t, unmapped_size)
),
TP_fast_assign(
+ __assign_str(name, domain->name);
__entry->iova = iova;
__entry->size = size;
__entry->unmapped_size = unmapped_size;
),
- TP_printk("IOMMU: iova=0x%016llx size=%zu unmapped_size=%zu",
- __entry->iova, __entry->size, __entry->unmapped_size
+ TP_printk("IOMMU:%s iova=0x%016llx size=0x%zx unmapped_size=0x%zx",
+ __get_str(name), __entry->iova, __entry->size,
+ __entry->unmapped_size
+ )
+);
+
+TRACE_EVENT(map_sg,
+
+ TP_PROTO(struct iommu_domain *domain, unsigned long iova, size_t size,
+ int prot),
+
+ TP_ARGS(domain, iova, size, prot),
+
+ TP_STRUCT__entry(
+ __string(name, domain->name)
+ __field(u64, iova)
+ __field(size_t, size)
+ __field(int, prot)
+ ),
+
+ TP_fast_assign(
+ __assign_str(name, domain->name);
+ __entry->iova = iova;
+ __entry->size = size;
+ __entry->prot = prot;
+ ),
+
+ TP_printk("IOMMU:%s iova=0x%016llx size=0x%zx prot=0x%x",
+ __get_str(name), __entry->iova, __entry->size,
+ __entry->prot
)
);
@@ -161,6 +200,66 @@ DEFINE_EVENT(iommu_error, io_page_fault,
TP_ARGS(dev, iova, flags)
);
+
+DECLARE_EVENT_CLASS(iommu_tlbi,
+
+ TP_PROTO(struct device *dev, u64 time),
+
+ TP_ARGS(dev, time),
+
+ TP_STRUCT__entry(
+ __string(device, dev_name(dev))
+ __field(u64, time)
+ ),
+
+ TP_fast_assign(
+ __assign_str(device, dev_name(dev));
+ __entry->time = time;
+ ),
+
+ TP_printk("IOMMU:%s %lld us",
+ __get_str(device), __entry->time
+ )
+);
+
+DEFINE_EVENT(iommu_tlbi, tlbi_start,
+
+ TP_PROTO(struct device *dev, u64 time),
+
+ TP_ARGS(dev, time)
+);
+
+DEFINE_EVENT(iommu_tlbi, tlbi_end,
+
+ TP_PROTO(struct device *dev, u64 time),
+
+ TP_ARGS(dev, time)
+);
+
+DEFINE_EVENT(iommu_tlbi, tlbsync_timeout,
+
+ TP_PROTO(struct device *dev, u64 time),
+
+ TP_ARGS(dev, time)
+);
+
+TRACE_EVENT(smmu_init,
+
+ TP_PROTO(u64 time),
+
+ TP_ARGS(time),
+
+ TP_STRUCT__entry(
+ __field(u64, time)
+ ),
+
+ TP_fast_assign(
+ __entry->time = time;
+ ),
+
+ TP_printk("ARM SMMU init latency: %lld us", __entry->time)
+);
+
#endif /* _TRACE_IOMMU_H */
/* This part must be outside protection */
diff --git a/include/trace/events/kmem.h b/include/trace/events/kmem.h
index eb57e30..ec8f586 100644
--- a/include/trace/events/kmem.h
+++ b/include/trace/events/kmem.h
@@ -315,6 +315,53 @@ TRACE_EVENT(mm_page_alloc_extfrag,
__entry->change_ownership)
);
+/*
+ * Required for uniquely and securely identifying mm in rss_stat tracepoint.
+ */
+#ifndef __PTR_TO_HASHVAL
+static unsigned int __maybe_unused mm_ptr_to_hash(const void *ptr)
+{
+ int ret;
+ unsigned long hashval;
+
+ ret = ptr_to_hashval(ptr, &hashval);
+ if (ret)
+ return 0;
+
+ /* The hashed value is only 32-bit */
+ return (unsigned int)hashval;
+}
+#define __PTR_TO_HASHVAL
+#endif
+
+TRACE_EVENT(rss_stat,
+
+ TP_PROTO(struct mm_struct *mm,
+ int member,
+ long count),
+
+ TP_ARGS(mm, member, count),
+
+ TP_STRUCT__entry(
+ __field(unsigned int, mm_id)
+ __field(unsigned int, curr)
+ __field(int, member)
+ __field(long, size)
+ ),
+
+ TP_fast_assign(
+ __entry->mm_id = mm_ptr_to_hash(mm);
+ __entry->curr = !!(current->mm == mm);
+ __entry->member = member;
+ __entry->size = (count << PAGE_SHIFT);
+ ),
+
+ TP_printk("mm_id=%u curr=%d member=%d size=%ldB",
+ __entry->mm_id,
+ __entry->curr,
+ __entry->member,
+ __entry->size)
+ );
#endif /* _TRACE_KMEM_H */
/* This part must be outside protection */
diff --git a/include/trace/events/mmflags.h b/include/trace/events/mmflags.h
index a81cffb..a1675d4 100644
--- a/include/trace/events/mmflags.h
+++ b/include/trace/events/mmflags.h
@@ -88,6 +88,7 @@
{1UL << PG_dirty, "dirty" }, \
{1UL << PG_lru, "lru" }, \
{1UL << PG_active, "active" }, \
+ {1UL << PG_workingset, "workingset" }, \
{1UL << PG_slab, "slab" }, \
{1UL << PG_owner_priv_1, "owner_priv_1" }, \
{1UL << PG_arch_1, "arch_1" }, \
diff --git a/include/trace/events/namei.h b/include/trace/events/namei.h
new file mode 100644
index 0000000..e8c3e21
--- /dev/null
+++ b/include/trace/events/namei.h
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM namei
+
+#if !defined(_TRACE_INODEPATH_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_INODEPATH_H
+
+#include <linux/types.h>
+#include <linux/tracepoint.h>
+#include <linux/mm.h>
+#include <linux/memcontrol.h>
+#include <linux/device.h>
+#include <linux/kdev_t.h>
+
+TRACE_EVENT(inodepath,
+ TP_PROTO(struct inode *inode, char *path),
+
+ TP_ARGS(inode, path),
+
+ TP_STRUCT__entry(
+ /* dev_t and ino_t are arch dependent bit width
+ * so just use 64-bit
+ */
+ __field(unsigned long, ino)
+ __field(unsigned long, dev)
+ __string(path, path)
+ ),
+
+ TP_fast_assign(
+ __entry->ino = inode->i_ino;
+ __entry->dev = inode->i_sb->s_dev;
+ __assign_str(path, path);
+ ),
+
+ TP_printk("dev %d:%d ino=%lu path=%s",
+ MAJOR(__entry->dev), MINOR(__entry->dev),
+ __entry->ino, __get_str(path))
+);
+#endif /* _TRACE_INODEPATH_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
diff --git a/include/trace/events/random.h b/include/trace/events/random.h
index 0560dfc3..32c10a5 100644
--- a/include/trace/events/random.h
+++ b/include/trace/events/random.h
@@ -62,15 +62,14 @@ DEFINE_EVENT(random__mix_pool_bytes, mix_pool_bytes_nolock,
TRACE_EVENT(credit_entropy_bits,
TP_PROTO(const char *pool_name, int bits, int entropy_count,
- int entropy_total, unsigned long IP),
+ unsigned long IP),
- TP_ARGS(pool_name, bits, entropy_count, entropy_total, IP),
+ TP_ARGS(pool_name, bits, entropy_count, IP),
TP_STRUCT__entry(
__field( const char *, pool_name )
__field( int, bits )
__field( int, entropy_count )
- __field( int, entropy_total )
__field(unsigned long, IP )
),
@@ -78,14 +77,12 @@ TRACE_EVENT(credit_entropy_bits,
__entry->pool_name = pool_name;
__entry->bits = bits;
__entry->entropy_count = entropy_count;
- __entry->entropy_total = entropy_total;
__entry->IP = IP;
),
- TP_printk("%s pool: bits %d entropy_count %d entropy_total %d "
- "caller %pS", __entry->pool_name, __entry->bits,
- __entry->entropy_count, __entry->entropy_total,
- (void *)__entry->IP)
+ TP_printk("%s pool: bits %d entropy_count %d caller %pS",
+ __entry->pool_name, __entry->bits,
+ __entry->entropy_count, (void *)__entry->IP)
);
TRACE_EVENT(push_to_pool,
diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
index 9a4bdfa..14efeb2 100644
--- a/include/trace/events/sched.h
+++ b/include/trace/events/sched.h
@@ -396,6 +396,30 @@ DEFINE_EVENT(sched_stat_template, sched_stat_blocked,
TP_ARGS(tsk, delay));
/*
+ * Tracepoint for recording the cause of uninterruptible sleep.
+ */
+TRACE_EVENT(sched_blocked_reason,
+
+ TP_PROTO(struct task_struct *tsk),
+
+ TP_ARGS(tsk),
+
+ TP_STRUCT__entry(
+ __field( pid_t, pid )
+ __field( void*, caller )
+ __field( bool, io_wait )
+ ),
+
+ TP_fast_assign(
+ __entry->pid = tsk->pid;
+ __entry->caller = (void*)get_wchan(tsk);
+ __entry->io_wait = tsk->in_iowait;
+ ),
+
+ TP_printk("pid=%d iowait=%d caller=%pS", __entry->pid, __entry->io_wait, __entry->caller)
+);
+
+/*
* Tracepoint for accounting runtime (time the task is executing
* on a CPU).
*/
@@ -587,6 +611,424 @@ TRACE_EVENT(sched_wake_idle_without_ipi,
TP_printk("cpu=%d", __entry->cpu)
);
+
+#ifdef CONFIG_SMP
+#ifdef CREATE_TRACE_POINTS
+static inline
+int __trace_sched_cpu(struct cfs_rq *cfs_rq, struct sched_entity *se)
+{
+#ifdef CONFIG_FAIR_GROUP_SCHED
+ struct rq *rq = cfs_rq ? cfs_rq->rq : NULL;
+#else
+ struct rq *rq = cfs_rq ? container_of(cfs_rq, struct rq, cfs) : NULL;
+#endif
+ return rq ? cpu_of(rq)
+ : task_cpu((container_of(se, struct task_struct, se)));
+}
+
+static inline
+int __trace_sched_path(struct cfs_rq *cfs_rq, char *path, int len)
+{
+#ifdef CONFIG_FAIR_GROUP_SCHED
+ int l = path ? len : 0;
+
+ if (cfs_rq && task_group_is_autogroup(cfs_rq->tg))
+ return autogroup_path(cfs_rq->tg, path, l) + 1;
+ else if (cfs_rq && cfs_rq->tg->css.cgroup)
+ return cgroup_path(cfs_rq->tg->css.cgroup, path, l) + 1;
+#endif
+ if (path)
+ strcpy(path, "(null)");
+
+ return strlen("(null)");
+}
+
+static inline
+struct cfs_rq *__trace_sched_group_cfs_rq(struct sched_entity *se)
+{
+#ifdef CONFIG_FAIR_GROUP_SCHED
+ return se->my_q;
+#else
+ return NULL;
+#endif
+}
+#endif /* CREATE_TRACE_POINTS */
+
+/*
+ * Tracepoint for cfs_rq load tracking:
+ */
+TRACE_EVENT(sched_load_cfs_rq,
+
+ TP_PROTO(struct cfs_rq *cfs_rq),
+
+ TP_ARGS(cfs_rq),
+
+ TP_STRUCT__entry(
+ __field( int, cpu )
+ __dynamic_array(char, path,
+ __trace_sched_path(cfs_rq, NULL, 0) )
+ __field( unsigned long, load )
+ __field( unsigned long, rbl_load )
+ __field( unsigned long, util )
+ ),
+
+ TP_fast_assign(
+ __entry->cpu = __trace_sched_cpu(cfs_rq, NULL);
+ __trace_sched_path(cfs_rq, __get_dynamic_array(path),
+ __get_dynamic_array_len(path));
+ __entry->load = cfs_rq->avg.load_avg;
+ __entry->rbl_load = cfs_rq->avg.runnable_load_avg;
+ __entry->util = cfs_rq->avg.util_avg;
+ ),
+
+ TP_printk("cpu=%d path=%s load=%lu rbl_load=%lu util=%lu",
+ __entry->cpu, __get_str(path), __entry->load,
+ __entry->rbl_load,__entry->util)
+);
+
+/*
+ * Tracepoint for rt_rq load tracking:
+ */
+struct rq;
+TRACE_EVENT(sched_load_rt_rq,
+
+ TP_PROTO(struct rq *rq),
+
+ TP_ARGS(rq),
+
+ TP_STRUCT__entry(
+ __field( int, cpu )
+ __field( unsigned long, util )
+ ),
+
+ TP_fast_assign(
+ __entry->cpu = rq->cpu;
+ __entry->util = rq->avg_rt.util_avg;
+ ),
+
+ TP_printk("cpu=%d util=%lu", __entry->cpu,
+ __entry->util)
+);
+
+/*
+ * Tracepoint for sched_entity load tracking:
+ */
+TRACE_EVENT(sched_load_se,
+
+ TP_PROTO(struct sched_entity *se),
+
+ TP_ARGS(se),
+
+ TP_STRUCT__entry(
+ __field( int, cpu )
+ __dynamic_array(char, path,
+ __trace_sched_path(__trace_sched_group_cfs_rq(se), NULL, 0) )
+ __array( char, comm, TASK_COMM_LEN )
+ __field( pid_t, pid )
+ __field( unsigned long, load )
+ __field( unsigned long, rbl_load )
+ __field( unsigned long, util )
+ ),
+
+ TP_fast_assign(
+ struct cfs_rq *gcfs_rq = __trace_sched_group_cfs_rq(se);
+ struct task_struct *p = gcfs_rq ? NULL
+ : container_of(se, struct task_struct, se);
+
+ __entry->cpu = __trace_sched_cpu(gcfs_rq, se);
+ __trace_sched_path(gcfs_rq, __get_dynamic_array(path),
+ __get_dynamic_array_len(path));
+ memcpy(__entry->comm, p ? p->comm : "(null)",
+ p ? TASK_COMM_LEN : sizeof("(null)"));
+ __entry->pid = p ? p->pid : -1;
+ __entry->load = se->avg.load_avg;
+ __entry->rbl_load = se->avg.runnable_load_avg;
+ __entry->util = se->avg.util_avg;
+ ),
+
+ TP_printk("cpu=%d path=%s comm=%s pid=%d load=%lu rbl_load=%lu util=%lu",
+ __entry->cpu, __get_str(path), __entry->comm, __entry->pid,
+ __entry->load, __entry->rbl_load, __entry->util)
+);
+
+/*
+ * Tracepoint for task_group load tracking:
+ */
+#ifdef CONFIG_FAIR_GROUP_SCHED
+TRACE_EVENT(sched_load_tg,
+
+ TP_PROTO(struct cfs_rq *cfs_rq),
+
+ TP_ARGS(cfs_rq),
+
+ TP_STRUCT__entry(
+ __field( int, cpu )
+ __dynamic_array(char, path,
+ __trace_sched_path(cfs_rq, NULL, 0) )
+ __field( long, load )
+ ),
+
+ TP_fast_assign(
+ __entry->cpu = cfs_rq->rq->cpu;
+ __trace_sched_path(cfs_rq, __get_dynamic_array(path),
+ __get_dynamic_array_len(path));
+ __entry->load = atomic_long_read(&cfs_rq->tg->load_avg);
+ ),
+
+ TP_printk("cpu=%d path=%s load=%ld", __entry->cpu, __get_str(path),
+ __entry->load)
+);
+#endif /* CONFIG_FAIR_GROUP_SCHED */
+
+/*
+ * Tracepoint for tasks' estimated utilization.
+ */
+TRACE_EVENT(sched_util_est_task,
+
+ TP_PROTO(struct task_struct *tsk, struct sched_avg *avg),
+
+ TP_ARGS(tsk, avg),
+
+ TP_STRUCT__entry(
+ __array( char, comm, TASK_COMM_LEN )
+ __field( pid_t, pid )
+ __field( int, cpu )
+ __field( unsigned int, util_avg )
+ __field( unsigned int, est_enqueued )
+ __field( unsigned int, est_ewma )
+
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
+ __entry->pid = tsk->pid;
+ __entry->cpu = task_cpu(tsk);
+ __entry->util_avg = avg->util_avg;
+ __entry->est_enqueued = avg->util_est.enqueued;
+ __entry->est_ewma = avg->util_est.ewma;
+ ),
+
+ TP_printk("comm=%s pid=%d cpu=%d util_avg=%u util_est_ewma=%u util_est_enqueued=%u",
+ __entry->comm,
+ __entry->pid,
+ __entry->cpu,
+ __entry->util_avg,
+ __entry->est_ewma,
+ __entry->est_enqueued)
+);
+
+/*
+ * Tracepoint for root cfs_rq's estimated utilization.
+ */
+TRACE_EVENT(sched_util_est_cpu,
+
+ TP_PROTO(int cpu, struct cfs_rq *cfs_rq),
+
+ TP_ARGS(cpu, cfs_rq),
+
+ TP_STRUCT__entry(
+ __field( int, cpu )
+ __field( unsigned int, util_avg )
+ __field( unsigned int, util_est_enqueued )
+ ),
+
+ TP_fast_assign(
+ __entry->cpu = cpu;
+ __entry->util_avg = cfs_rq->avg.util_avg;
+ __entry->util_est_enqueued = cfs_rq->avg.util_est.enqueued;
+ ),
+
+ TP_printk("cpu=%d util_avg=%u util_est_enqueued=%u",
+ __entry->cpu,
+ __entry->util_avg,
+ __entry->util_est_enqueued)
+);
+
+/*
+ * Tracepoint for find_best_target
+ */
+TRACE_EVENT(sched_find_best_target,
+
+ TP_PROTO(struct task_struct *tsk, bool prefer_idle,
+ unsigned long min_util, int best_idle, int best_active,
+ int target, int backup),
+
+ TP_ARGS(tsk, prefer_idle, min_util, best_idle,
+ best_active, target, backup),
+
+ TP_STRUCT__entry(
+ __array( char, comm, TASK_COMM_LEN )
+ __field( pid_t, pid )
+ __field( unsigned long, min_util )
+ __field( bool, prefer_idle )
+ __field( int, best_idle )
+ __field( int, best_active )
+ __field( int, target )
+ __field( int, backup )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
+ __entry->pid = tsk->pid;
+ __entry->min_util = min_util;
+ __entry->prefer_idle = prefer_idle;
+ __entry->best_idle = best_idle;
+ __entry->best_active = best_active;
+ __entry->target = target;
+ __entry->backup = backup;
+ ),
+
+ TP_printk("pid=%d comm=%s prefer_idle=%d "
+ "best_idle=%d best_active=%d target=%d backup=%d",
+ __entry->pid, __entry->comm, __entry->prefer_idle,
+ __entry->best_idle, __entry->best_active,
+ __entry->target, __entry->backup)
+);
+
+/*
+ * Tracepoint for accounting CPU boosted utilization
+ */
+TRACE_EVENT(sched_boost_cpu,
+
+ TP_PROTO(int cpu, unsigned long util, long margin),
+
+ TP_ARGS(cpu, util, margin),
+
+ TP_STRUCT__entry(
+ __field( int, cpu )
+ __field( unsigned long, util )
+ __field(long, margin )
+ ),
+
+ TP_fast_assign(
+ __entry->cpu = cpu;
+ __entry->util = util;
+ __entry->margin = margin;
+ ),
+
+ TP_printk("cpu=%d util=%lu margin=%ld",
+ __entry->cpu,
+ __entry->util,
+ __entry->margin)
+);
+
+/*
+ * Tracepoint for schedtune_tasks_update
+ */
+TRACE_EVENT(sched_tune_tasks_update,
+
+ TP_PROTO(struct task_struct *tsk, int cpu, int tasks, int idx,
+ int boost, int max_boost, u64 group_ts),
+
+ TP_ARGS(tsk, cpu, tasks, idx, boost, max_boost, group_ts),
+
+ TP_STRUCT__entry(
+ __array( char, comm, TASK_COMM_LEN )
+ __field( pid_t, pid )
+ __field( int, cpu )
+ __field( int, tasks )
+ __field( int, idx )
+ __field( int, boost )
+ __field( int, max_boost )
+ __field( u64, group_ts )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
+ __entry->pid = tsk->pid;
+ __entry->cpu = cpu;
+ __entry->tasks = tasks;
+ __entry->idx = idx;
+ __entry->boost = boost;
+ __entry->max_boost = max_boost;
+ __entry->group_ts = group_ts;
+ ),
+
+ TP_printk("pid=%d comm=%s "
+ "cpu=%d tasks=%d idx=%d boost=%d max_boost=%d timeout=%llu",
+ __entry->pid, __entry->comm,
+ __entry->cpu, __entry->tasks, __entry->idx,
+ __entry->boost, __entry->max_boost,
+ __entry->group_ts)
+);
+
+/*
+ * Tracepoint for schedtune_boostgroup_update
+ */
+TRACE_EVENT(sched_tune_boostgroup_update,
+
+ TP_PROTO(int cpu, int variation, int max_boost),
+
+ TP_ARGS(cpu, variation, max_boost),
+
+ TP_STRUCT__entry(
+ __field( int, cpu )
+ __field( int, variation )
+ __field( int, max_boost )
+ ),
+
+ TP_fast_assign(
+ __entry->cpu = cpu;
+ __entry->variation = variation;
+ __entry->max_boost = max_boost;
+ ),
+
+ TP_printk("cpu=%d variation=%d max_boost=%d",
+ __entry->cpu, __entry->variation, __entry->max_boost)
+);
+
+/*
+ * Tracepoint for accounting task boosted utilization
+ */
+TRACE_EVENT(sched_boost_task,
+
+ TP_PROTO(struct task_struct *tsk, unsigned long util, long margin),
+
+ TP_ARGS(tsk, util, margin),
+
+ TP_STRUCT__entry(
+ __array( char, comm, TASK_COMM_LEN )
+ __field( pid_t, pid )
+ __field( unsigned long, util )
+ __field( long, margin )
+
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
+ __entry->pid = tsk->pid;
+ __entry->util = util;
+ __entry->margin = margin;
+ ),
+
+ TP_printk("comm=%s pid=%d util=%lu margin=%ld",
+ __entry->comm, __entry->pid,
+ __entry->util,
+ __entry->margin)
+);
+
+/*
+ * Tracepoint for system overutilized flag
+*/
+TRACE_EVENT(sched_overutilized,
+
+ TP_PROTO(int overutilized),
+
+ TP_ARGS(overutilized),
+
+ TP_STRUCT__entry(
+ __field( int, overutilized )
+ ),
+
+ TP_fast_assign(
+ __entry->overutilized = overutilized;
+ ),
+
+ TP_printk("overutilized=%d",
+ __entry->overutilized)
+);
+
+#endif /* CONFIG_SMP */
#endif /* _TRACE_SCHED_H */
/* This part must be outside protection */
diff --git a/include/trace/events/thermal_virtual.h b/include/trace/events/thermal_virtual.h
new file mode 100644
index 0000000..76173ea
--- /dev/null
+++ b/include/trace/events/thermal_virtual.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2017-2018, The Linux Foundation. All rights reserved.
+ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM thermal_virtual
+
+#if !defined(_TRACE_VIRTUAL_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_VIRTUAL_H
+
+#include <linux/thermal.h>
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(virtual_temperature,
+
+ TP_PROTO(struct thermal_zone_device *virt_tz,
+ struct thermal_zone_device *tz, int sens_temp,
+ int est_temp),
+
+ TP_ARGS(virt_tz, tz, sens_temp, est_temp),
+
+ TP_STRUCT__entry(
+ __string(virt_zone, virt_tz->type)
+ __string(therm_zone, tz->type)
+ __field(int, sens_temp)
+ __field(int, est_temp)
+ ),
+
+ TP_fast_assign(
+ __assign_str(virt_zone, virt_tz->type);
+ __assign_str(therm_zone, tz->type);
+ __entry->sens_temp = sens_temp;
+ __entry->est_temp = est_temp;
+ ),
+
+ TP_printk("virt_zone=%s zone=%s temp=%d virtual zone estimated temp=%d",
+ __get_str(virt_zone), __get_str(therm_zone),
+ __entry->sens_temp,
+ __entry->est_temp)
+);
+
+#endif /* _TRACE_VIRTUAL_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index df4bedb..be311b9 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -736,9 +736,13 @@ __SYSCALL(__NR_statx, sys_statx)
__SC_COMP(__NR_io_pgetevents, sys_io_pgetevents, compat_sys_io_pgetevents)
#define __NR_rseq 293
__SYSCALL(__NR_rseq, sys_rseq)
+#define __NR_pidfd_send_signal 424
+__SYSCALL(__NR_pidfd_send_signal, sys_pidfd_send_signal)
+#define __NR_pidfd_open 434
+__SYSCALL(__NR_pidfd_open, sys_pidfd_open)
#undef __NR_syscalls
-#define __NR_syscalls 294
+#define __NR_syscalls 435
/*
* 32 bit systems traditionally used different
diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
index 721ab7e..25193b3 100644
--- a/include/uapi/drm/drm_fourcc.h
+++ b/include/uapi/drm/drm_fourcc.h
@@ -312,6 +312,30 @@ extern "C" {
*/
#define DRM_FORMAT_MOD_QCOM_COMPRESSED fourcc_mod_code(QCOM, 1)
+/*
+ * QTI DX Format
+ *
+ * Refers to a DX variant of the base format.
+ * Implementation may be platform and base-format specific.
+ */
+#define DRM_FORMAT_MOD_QCOM_DX fourcc_mod_code(QCOM, 0x2)
+
+/*
+ * QTI Tight Format
+ *
+ * Refers to a tightly packed variant of the base format.
+ * Implementation may be platform and base-format specific.
+ */
+#define DRM_FORMAT_MOD_QCOM_TIGHT fourcc_mod_code(QCOM, 0x4)
+
+/*
+ * QTI Tile Format
+ *
+ * Refers to a tile variant of the base format.
+ * Implementation may be platform and base-format specific.
+ */
+#define DRM_FORMAT_MOD_QCOM_TILE fourcc_mod_code(QCOM, 0x8)
+
/* Vivante framebuffer modifiers */
/*
diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h
index 8d67243..9666a1f 100644
--- a/include/uapi/drm/drm_mode.h
+++ b/include/uapi/drm/drm_mode.h
@@ -116,6 +116,13 @@ extern "C" {
#define DRM_MODE_FLAG_PIC_AR_256_135 \
(DRM_MODE_PICTURE_ASPECT_256_135<<19)
+#define DRM_MODE_FLAG_SUPPORTS_RGB (1<<27)
+
+#define DRM_MODE_FLAG_SUPPORTS_YUV (1<<28)
+#define DRM_MODE_FLAG_VID_MODE_PANEL (1<<29)
+#define DRM_MODE_FLAG_CMD_MODE_PANEL (1<<30)
+#define DRM_MODE_FLAG_SEAMLESS (1<<31)
+
#define DRM_MODE_FLAG_ALL (DRM_MODE_FLAG_PHSYNC | \
DRM_MODE_FLAG_NHSYNC | \
DRM_MODE_FLAG_PVSYNC | \
@@ -128,6 +135,10 @@ extern "C" {
DRM_MODE_FLAG_HSKEW | \
DRM_MODE_FLAG_DBLCLK | \
DRM_MODE_FLAG_CLKDIV2 | \
+ DRM_MODE_FLAG_SUPPORTS_RGB | \
+ DRM_MODE_FLAG_SUPPORTS_YUV | \
+ DRM_MODE_FLAG_VID_MODE_PANEL | \
+ DRM_MODE_FLAG_CMD_MODE_PANEL | \
DRM_MODE_FLAG_3D_MASK)
/* DPMS flags */
@@ -475,6 +486,7 @@ struct drm_mode_fb_cmd {
#define DRM_MODE_FB_INTERLACED (1<<0) /* for interlaced framebuffers */
#define DRM_MODE_FB_MODIFIERS (1<<1) /* enables ->modifer[] */
+#define DRM_MODE_FB_SECURE (1<<2) /* for secure framebuffers */
struct drm_mode_fb_cmd2 {
__u32 fb_id;
diff --git a/include/uapi/drm/virtgpu_drm.h b/include/uapi/drm/virtgpu_drm.h
index 9a781f0..f06a789 100644
--- a/include/uapi/drm/virtgpu_drm.h
+++ b/include/uapi/drm/virtgpu_drm.h
@@ -47,6 +47,13 @@ extern "C" {
#define DRM_VIRTGPU_WAIT 0x08
#define DRM_VIRTGPU_GET_CAPS 0x09
+#define VIRTGPU_EXECBUF_FENCE_FD_IN 0x01
+#define VIRTGPU_EXECBUF_FENCE_FD_OUT 0x02
+#define VIRTGPU_EXECBUF_FLAGS (\
+ VIRTGPU_EXECBUF_FENCE_FD_IN |\
+ VIRTGPU_EXECBUF_FENCE_FD_OUT |\
+ 0)
+
struct drm_virtgpu_map {
__u64 offset; /* use for mmap system call */
__u32 handle;
@@ -54,12 +61,12 @@ struct drm_virtgpu_map {
};
struct drm_virtgpu_execbuffer {
- __u32 flags; /* for future use */
+ __u32 flags;
__u32 size;
__u64 command; /* void* */
__u64 bo_handles;
__u32 num_bo_handles;
- __u32 pad;
+ __s32 fence_fd; /* in/out fence fd (see VIRTGPU_EXECBUF_FENCE_FD_IN/OUT) */
};
#define VIRTGPU_PARAM_3D_FEATURES 1 /* do we have 3D features in the hw */
@@ -137,7 +144,7 @@ struct drm_virtgpu_get_caps {
DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_MAP, struct drm_virtgpu_map)
#define DRM_IOCTL_VIRTGPU_EXECBUFFER \
- DRM_IOW(DRM_COMMAND_BASE + DRM_VIRTGPU_EXECBUFFER,\
+ DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_EXECBUFFER,\
struct drm_virtgpu_execbuffer)
#define DRM_IOCTL_VIRTGPU_GETPARAM \
diff --git a/include/uapi/linux/OWNERS b/include/uapi/linux/OWNERS
new file mode 100644
index 0000000..1130468
--- /dev/null
+++ b/include/uapi/linux/OWNERS
@@ -0,0 +1,2 @@
+# include OWNERS from the authoritative android-mainline branch
+include kernel/common:android-mainline:/include/uapi/linux/OWNERS
diff --git a/include/uapi/linux/android/binder.h b/include/uapi/linux/android/binder.h
index bfaec69..36a53fd 100644
--- a/include/uapi/linux/android/binder.h
+++ b/include/uapi/linux/android/binder.h
@@ -38,9 +38,64 @@ enum {
BINDER_TYPE_PTR = B_PACK_CHARS('p', 't', '*', B_TYPE_LARGE),
};
-enum {
+/**
+ * enum flat_binder_object_shifts: shift values for flat_binder_object_flags
+ * @FLAT_BINDER_FLAG_SCHED_POLICY_SHIFT: shift for getting scheduler policy.
+ *
+ */
+enum flat_binder_object_shifts {
+ FLAT_BINDER_FLAG_SCHED_POLICY_SHIFT = 9,
+};
+
+/**
+ * enum flat_binder_object_flags - flags for use in flat_binder_object.flags
+ */
+enum flat_binder_object_flags {
+ /**
+ * @FLAT_BINDER_FLAG_PRIORITY_MASK: bit-mask for min scheduler priority
+ *
+ * These bits can be used to set the minimum scheduler priority
+ * at which transactions into this node should run. Valid values
+ * in these bits depend on the scheduler policy encoded in
+ * @FLAT_BINDER_FLAG_SCHED_POLICY_MASK.
+ *
+ * For SCHED_NORMAL/SCHED_BATCH, the valid range is between [-20..19]
+ * For SCHED_FIFO/SCHED_RR, the value can run between [1..99]
+ */
FLAT_BINDER_FLAG_PRIORITY_MASK = 0xff,
+ /**
+ * @FLAT_BINDER_FLAG_ACCEPTS_FDS: whether the node accepts fds.
+ */
FLAT_BINDER_FLAG_ACCEPTS_FDS = 0x100,
+ /**
+ * @FLAT_BINDER_FLAG_SCHED_POLICY_MASK: bit-mask for scheduling policy
+ *
+ * These two bits can be used to set the min scheduling policy at which
+ * transactions on this node should run. These match the UAPI
+ * scheduler policy values, eg:
+ * 00b: SCHED_NORMAL
+ * 01b: SCHED_FIFO
+ * 10b: SCHED_RR
+ * 11b: SCHED_BATCH
+ */
+ FLAT_BINDER_FLAG_SCHED_POLICY_MASK =
+ 3U << FLAT_BINDER_FLAG_SCHED_POLICY_SHIFT,
+
+ /**
+ * @FLAT_BINDER_FLAG_INHERIT_RT: whether the node inherits RT policy
+ *
+ * Only when set, calls into this node will inherit a real-time
+ * scheduling policy from the caller (for synchronous transactions).
+ */
+ FLAT_BINDER_FLAG_INHERIT_RT = 0x800,
+
+ /**
+ * @FLAT_BINDER_FLAG_TXN_SECURITY_CTX: request security contexts
+ *
+ * Only when set, causes senders to include their security
+ * context
+ */
+ FLAT_BINDER_FLAG_TXN_SECURITY_CTX = 0x1000,
};
#ifdef BINDER_IPC_32BIT
@@ -200,6 +255,15 @@ struct binder_node_debug_info {
__u32 has_weak_ref;
};
+struct binder_node_info_for_ref {
+ __u32 handle;
+ __u32 strong_count;
+ __u32 weak_count;
+ __u32 reserved1;
+ __u32 reserved2;
+ __u32 reserved3;
+};
+
#define BINDER_WRITE_READ _IOWR('b', 1, struct binder_write_read)
#define BINDER_SET_IDLE_TIMEOUT _IOW('b', 3, __s64)
#define BINDER_SET_MAX_THREADS _IOW('b', 5, __u32)
@@ -208,6 +272,8 @@ struct binder_node_debug_info {
#define BINDER_THREAD_EXIT _IOW('b', 8, __s32)
#define BINDER_VERSION _IOWR('b', 9, struct binder_version)
#define BINDER_GET_NODE_DEBUG_INFO _IOWR('b', 11, struct binder_node_debug_info)
+#define BINDER_GET_NODE_INFO_FOR_REF _IOWR('b', 12, struct binder_node_info_for_ref)
+#define BINDER_SET_CONTEXT_MGR_EXT _IOW('b', 13, struct flat_binder_object)
/*
* NOTE: Two special error codes you should check for when calling
@@ -266,6 +332,11 @@ struct binder_transaction_data {
} data;
};
+struct binder_transaction_data_secctx {
+ struct binder_transaction_data transaction_data;
+ binder_uintptr_t secctx;
+};
+
struct binder_transaction_data_sg {
struct binder_transaction_data transaction_data;
binder_size_t buffers_size;
@@ -301,6 +372,11 @@ enum binder_driver_return_protocol {
BR_OK = _IO('r', 1),
/* No parameters! */
+ BR_TRANSACTION_SEC_CTX = _IOR('r', 2,
+ struct binder_transaction_data_secctx),
+ /*
+ * binder_transaction_data_secctx: the received command.
+ */
BR_TRANSACTION = _IOR('r', 2, struct binder_transaction_data),
BR_REPLY = _IOR('r', 3, struct binder_transaction_data),
/*
diff --git a/include/uapi/linux/android/binderfs.h b/include/uapi/linux/android/binderfs.h
new file mode 100644
index 0000000..65b2efd
--- /dev/null
+++ b/include/uapi/linux/android/binderfs.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ * Copyright (C) 2018 Canonical Ltd.
+ *
+ */
+
+#ifndef _UAPI_LINUX_BINDER_CTL_H
+#define _UAPI_LINUX_BINDER_CTL_H
+
+#include <linux/android/binder.h>
+#include <linux/types.h>
+#include <linux/ioctl.h>
+
+#define BINDERFS_MAX_NAME 255
+
+/**
+ * struct binderfs_device - retrieve information about a new binder device
+ * @name: the name to use for the new binderfs binder device
+ * @major: major number allocated for binderfs binder devices
+ * @minor: minor number allocated for the new binderfs binder device
+ *
+ */
+struct binderfs_device {
+ char name[BINDERFS_MAX_NAME + 1];
+ __u8 major;
+ __u8 minor;
+};
+
+/**
+ * Allocate a new binder device.
+ */
+#define BINDER_CTL_ADD _IOWR('b', 1, struct binderfs_device)
+
+#endif /* _UAPI_LINUX_BINDER_CTL_H */
+
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 8481fc7..c7f3bc4 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -485,6 +485,8 @@ union bpf_attr {
* u64 bpf_ktime_get_ns(void)
* Description
* Return the time elapsed since system boot, in nanoseconds.
+ * Does not include time the system was suspended.
+ * See: clock_gettime(CLOCK_MONOTONIC)
* Return
* Current *ktime*.
*
@@ -2157,6 +2159,14 @@ union bpf_attr {
* request in the skb.
* Return
* 0 on success, or a negative error in case of failure.
+ *
+ * u64 bpf_ktime_get_boot_ns(void)
+ * Description
+ * Return the time elapsed since system boot, in nanoseconds.
+ * Does include the time the system was suspended.
+ * See: clock_gettime(CLOCK_BOOTTIME)
+ * Return
+ * Current *ktime*.
*/
#define __BPF_FUNC_MAPPER(FN) \
FN(unspec), \
@@ -2242,7 +2252,49 @@ union bpf_attr {
FN(get_current_cgroup_id), \
FN(get_local_storage), \
FN(sk_select_reuseport), \
- FN(skb_ancestor_cgroup_id),
+ FN(skb_ancestor_cgroup_id), \
+ FN(sk_lookup_tcp), \
+ FN(sk_lookup_udp), \
+ FN(sk_release), \
+ FN(map_push_elem), \
+ FN(map_pop_elem), \
+ FN(map_peek_elem), \
+ FN(msg_push_data), \
+ FN(msg_pop_data), \
+ FN(rc_pointer_rel), \
+ FN(spin_lock), \
+ FN(spin_unlock), \
+ FN(sk_fullsock), \
+ FN(tcp_sock), \
+ FN(skb_ecn_set_ce), \
+ FN(get_listener_sock), \
+ FN(skc_lookup_tcp), \
+ FN(tcp_check_syncookie), \
+ FN(sysctl_get_name), \
+ FN(sysctl_get_current_value), \
+ FN(sysctl_get_new_value), \
+ FN(sysctl_set_new_value), \
+ FN(strtol), \
+ FN(strtoul), \
+ FN(sk_storage_get), \
+ FN(sk_storage_delete), \
+ FN(send_signal), \
+ FN(tcp_gen_syncookie), \
+ FN(skb_output), \
+ FN(probe_read_user), \
+ FN(probe_read_kernel), \
+ FN(probe_read_user_str), \
+ FN(probe_read_kernel_str), \
+ FN(tcp_send_ack), \
+ FN(send_signal_thread), \
+ FN(jiffies64), \
+ FN(read_branch_records), \
+ FN(get_ns_current_pid_tgid), \
+ FN(xdp_output), \
+ FN(get_netns_cookie), \
+ FN(get_current_ancestor_cgroup_id), \
+ FN(sk_assign), \
+ FN(ktime_get_boot_ns),
/* integer value in 'imm' field of BPF_CALL instruction selects which helper
* function eBPF program intends to call
diff --git a/include/uapi/linux/dm-user.h b/include/uapi/linux/dm-user.h
new file mode 100644
index 0000000..6d8f535b
--- /dev/null
+++ b/include/uapi/linux/dm-user.h
@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: LGPL-2.0+ WITH Linux-syscall-note */
+/*
+ * Copyright (C) 2020 Google, Inc
+ * Copyright (C) 2020 Palmer Dabbelt <palmerdabbelt@google.com>
+ */
+
+#ifndef _LINUX_DM_USER_H
+#define _LINUX_DM_USER_H
+
+#include <linux/types.h>
+
+/*
+ * dm-user proxies device mapper ops between the kernel and userspace. It's
+ * essentially just an RPC mechanism: all kernel calls create a request,
+ * userspace handles that with a response. Userspace obtains requests via
+ * read() and provides responses via write().
+ *
+ * See Documentation/block/dm-user.rst for more information.
+ */
+
+#define DM_USER_REQ_MAP_READ 0
+#define DM_USER_REQ_MAP_WRITE 1
+#define DM_USER_REQ_MAP_FLUSH 2
+#define DM_USER_REQ_MAP_DISCARD 3
+#define DM_USER_REQ_MAP_SECURE_ERASE 4
+#define DM_USER_REQ_MAP_WRITE_SAME 5
+#define DM_USER_REQ_MAP_WRITE_ZEROES 6
+#define DM_USER_REQ_MAP_ZONE_OPEN 7
+#define DM_USER_REQ_MAP_ZONE_CLOSE 8
+#define DM_USER_REQ_MAP_ZONE_FINISH 9
+#define DM_USER_REQ_MAP_ZONE_APPEND 10
+#define DM_USER_REQ_MAP_ZONE_RESET 11
+#define DM_USER_REQ_MAP_ZONE_RESET_ALL 12
+
+#define DM_USER_REQ_MAP_FLAG_FAILFAST_DEV 0x00001
+#define DM_USER_REQ_MAP_FLAG_FAILFAST_TRANSPORT 0x00002
+#define DM_USER_REQ_MAP_FLAG_FAILFAST_DRIVER 0x00004
+#define DM_USER_REQ_MAP_FLAG_SYNC 0x00008
+#define DM_USER_REQ_MAP_FLAG_META 0x00010
+#define DM_USER_REQ_MAP_FLAG_PRIO 0x00020
+#define DM_USER_REQ_MAP_FLAG_NOMERGE 0x00040
+#define DM_USER_REQ_MAP_FLAG_IDLE 0x00080
+#define DM_USER_REQ_MAP_FLAG_INTEGRITY 0x00100
+#define DM_USER_REQ_MAP_FLAG_FUA 0x00200
+#define DM_USER_REQ_MAP_FLAG_PREFLUSH 0x00400
+#define DM_USER_REQ_MAP_FLAG_RAHEAD 0x00800
+#define DM_USER_REQ_MAP_FLAG_BACKGROUND 0x01000
+#define DM_USER_REQ_MAP_FLAG_NOWAIT 0x02000
+#define DM_USER_REQ_MAP_FLAG_CGROUP_PUNT 0x04000
+#define DM_USER_REQ_MAP_FLAG_NOUNMAP 0x08000
+#define DM_USER_REQ_MAP_FLAG_HIPRI 0x10000
+#define DM_USER_REQ_MAP_FLAG_DRV 0x20000
+#define DM_USER_REQ_MAP_FLAG_SWAP 0x40000
+
+#define DM_USER_RESP_SUCCESS 0
+#define DM_USER_RESP_ERROR 1
+#define DM_USER_RESP_UNSUPPORTED 2
+
+struct dm_user_message {
+ __u64 seq;
+ __u64 type;
+ __u64 flags;
+ __u64 sector;
+ __u64 len;
+ __u8 buf[];
+};
+
+#endif
diff --git a/include/uapi/linux/dma-buf.h b/include/uapi/linux/dma-buf.h
index d75df52..c6f38dc 100644
--- a/include/uapi/linux/dma-buf.h
+++ b/include/uapi/linux/dma-buf.h
@@ -32,10 +32,21 @@ struct dma_buf_sync {
#define DMA_BUF_SYNC_RW (DMA_BUF_SYNC_READ | DMA_BUF_SYNC_WRITE)
#define DMA_BUF_SYNC_START (0 << 2)
#define DMA_BUF_SYNC_END (1 << 2)
+#define DMA_BUF_SYNC_USER_MAPPED (1 << 3)
+
#define DMA_BUF_SYNC_VALID_FLAGS_MASK \
- (DMA_BUF_SYNC_RW | DMA_BUF_SYNC_END)
+ (DMA_BUF_SYNC_RW | DMA_BUF_SYNC_END | DMA_BUF_SYNC_USER_MAPPED)
+
+#define DMA_BUF_NAME_LEN 32
#define DMA_BUF_BASE 'b'
#define DMA_BUF_IOCTL_SYNC _IOW(DMA_BUF_BASE, 0, struct dma_buf_sync)
+/* 32/64bitness of this uapi was botched in android, there's no difference
+ * between them in actual uapi, they're just different numbers.
+ */
+#define DMA_BUF_SET_NAME _IOW(DMA_BUF_BASE, 1, const char *)
+#define DMA_BUF_SET_NAME_A _IOW(DMA_BUF_BASE, 1, u32)
+#define DMA_BUF_SET_NAME_B _IOW(DMA_BUF_BASE, 1, u64)
+
#endif
diff --git a/include/uapi/linux/fcntl.h b/include/uapi/linux/fcntl.h
index 6448cdd..a2f8658 100644
--- a/include/uapi/linux/fcntl.h
+++ b/include/uapi/linux/fcntl.h
@@ -41,6 +41,7 @@
#define F_SEAL_SHRINK 0x0002 /* prevent file from shrinking */
#define F_SEAL_GROW 0x0004 /* prevent file from growing */
#define F_SEAL_WRITE 0x0008 /* prevent writes */
+#define F_SEAL_FUTURE_WRITE 0x0010 /* prevent future writes while mapped */
/* (1U << 31) is reserved for signed error codes */
/*
diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h
index a441ea1..463117c 100644
--- a/include/uapi/linux/fs.h
+++ b/include/uapi/linux/fs.h
@@ -13,6 +13,9 @@
#include <linux/limits.h>
#include <linux/ioctl.h>
#include <linux/types.h>
+#ifndef __KERNEL__
+#include <linux/fscrypt.h>
+#endif
/*
* It's silly to have NR_OPEN bigger than NR_FILE, but you can change
@@ -259,55 +262,6 @@ struct fsxattr {
#define FS_IOC_SETFSLABEL _IOW(0x94, 50, char[FSLABEL_MAX])
/*
- * File system encryption support
- */
-/* Policy provided via an ioctl on the topmost directory */
-#define FS_KEY_DESCRIPTOR_SIZE 8
-
-#define FS_POLICY_FLAGS_PAD_4 0x00
-#define FS_POLICY_FLAGS_PAD_8 0x01
-#define FS_POLICY_FLAGS_PAD_16 0x02
-#define FS_POLICY_FLAGS_PAD_32 0x03
-#define FS_POLICY_FLAGS_PAD_MASK 0x03
-#define FS_POLICY_FLAGS_VALID 0x03
-
-/* Encryption algorithms */
-#define FS_ENCRYPTION_MODE_INVALID 0
-#define FS_ENCRYPTION_MODE_AES_256_XTS 1
-#define FS_ENCRYPTION_MODE_AES_256_GCM 2
-#define FS_ENCRYPTION_MODE_AES_256_CBC 3
-#define FS_ENCRYPTION_MODE_AES_256_CTS 4
-#define FS_ENCRYPTION_MODE_AES_128_CBC 5
-#define FS_ENCRYPTION_MODE_AES_128_CTS 6
-#define FS_ENCRYPTION_MODE_SPECK128_256_XTS 7 /* Removed, do not use. */
-#define FS_ENCRYPTION_MODE_SPECK128_256_CTS 8 /* Removed, do not use. */
-
-struct fscrypt_policy {
- __u8 version;
- __u8 contents_encryption_mode;
- __u8 filenames_encryption_mode;
- __u8 flags;
- __u8 master_key_descriptor[FS_KEY_DESCRIPTOR_SIZE];
-};
-
-#define FS_IOC_SET_ENCRYPTION_POLICY _IOR('f', 19, struct fscrypt_policy)
-#define FS_IOC_GET_ENCRYPTION_PWSALT _IOW('f', 20, __u8[16])
-#define FS_IOC_GET_ENCRYPTION_POLICY _IOW('f', 21, struct fscrypt_policy)
-
-/* Parameters for passing an encryption key into the kernel keyring */
-#define FS_KEY_DESC_PREFIX "fscrypt:"
-#define FS_KEY_DESC_PREFIX_SIZE 8
-
-/* Structure that userspace passes to the kernel keyring */
-#define FS_MAX_KEY_SIZE 64
-
-struct fscrypt_key {
- __u32 mode;
- __u8 raw[FS_MAX_KEY_SIZE];
- __u32 size;
-};
-
-/*
* Inode flags (FS_IOC_GETFLAGS / FS_IOC_SETFLAGS)
*
* Note: for historical reasons, these flags were originally used and
@@ -350,11 +304,13 @@ struct fscrypt_key {
#define FS_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/
#define FS_HUGE_FILE_FL 0x00040000 /* Reserved for ext4 */
#define FS_EXTENT_FL 0x00080000 /* Extents */
+#define FS_VERITY_FL 0x00100000 /* Verity protected inode */
#define FS_EA_INODE_FL 0x00200000 /* Inode used for large EA */
#define FS_EOFBLOCKS_FL 0x00400000 /* Reserved for ext4 */
#define FS_NOCOW_FL 0x00800000 /* Do not cow file */
#define FS_INLINE_DATA_FL 0x10000000 /* Reserved for ext4 */
#define FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
+#define FS_CASEFOLD_FL 0x40000000 /* Folder is case insensitive */
#define FS_RESERVED_FL 0x80000000 /* reserved for ext2 lib */
#define FS_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */
diff --git a/include/uapi/linux/fscrypt.h b/include/uapi/linux/fscrypt.h
new file mode 100644
index 0000000..b11faee
--- /dev/null
+++ b/include/uapi/linux/fscrypt.h
@@ -0,0 +1,199 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ * fscrypt user API
+ *
+ * These ioctls can be used on filesystems that support fscrypt. See the
+ * "User API" section of Documentation/filesystems/fscrypt.rst.
+ */
+#ifndef _UAPI_LINUX_FSCRYPT_H
+#define _UAPI_LINUX_FSCRYPT_H
+
+#include <linux/ioctl.h>
+#include <linux/types.h>
+
+/* Encryption policy flags */
+#define FSCRYPT_POLICY_FLAGS_PAD_4 0x00
+#define FSCRYPT_POLICY_FLAGS_PAD_8 0x01
+#define FSCRYPT_POLICY_FLAGS_PAD_16 0x02
+#define FSCRYPT_POLICY_FLAGS_PAD_32 0x03
+#define FSCRYPT_POLICY_FLAGS_PAD_MASK 0x03
+#define FSCRYPT_POLICY_FLAG_DIRECT_KEY 0x04
+#define FSCRYPT_POLICY_FLAG_IV_INO_LBLK_64 0x08
+#define FSCRYPT_POLICY_FLAG_IV_INO_LBLK_32 0x10
+#define FSCRYPT_POLICY_FLAGS_VALID 0x1F
+
+/* Encryption algorithms */
+#define FSCRYPT_MODE_AES_256_XTS 1
+#define FSCRYPT_MODE_AES_256_CTS 4
+#define FSCRYPT_MODE_AES_128_CBC 5
+#define FSCRYPT_MODE_AES_128_CTS 6
+#define FSCRYPT_MODE_ADIANTUM 9
+#define __FSCRYPT_MODE_MAX 9
+
+/*
+ * Legacy policy version; ad-hoc KDF and no key verification.
+ * For new encrypted directories, use fscrypt_policy_v2 instead.
+ *
+ * Careful: the .version field for this is actually 0, not 1.
+ */
+#define FSCRYPT_POLICY_V1 0
+#define FSCRYPT_KEY_DESCRIPTOR_SIZE 8
+struct fscrypt_policy_v1 {
+ __u8 version;
+ __u8 contents_encryption_mode;
+ __u8 filenames_encryption_mode;
+ __u8 flags;
+ __u8 master_key_descriptor[FSCRYPT_KEY_DESCRIPTOR_SIZE];
+};
+#define fscrypt_policy fscrypt_policy_v1
+
+/*
+ * Process-subscribed "logon" key description prefix and payload format.
+ * Deprecated; prefer FS_IOC_ADD_ENCRYPTION_KEY instead.
+ */
+#define FSCRYPT_KEY_DESC_PREFIX "fscrypt:"
+#define FSCRYPT_KEY_DESC_PREFIX_SIZE 8
+#define FSCRYPT_MAX_KEY_SIZE 64
+struct fscrypt_key {
+ __u32 mode;
+ __u8 raw[FSCRYPT_MAX_KEY_SIZE];
+ __u32 size;
+};
+
+/*
+ * New policy version with HKDF and key verification (recommended).
+ */
+#define FSCRYPT_POLICY_V2 2
+#define FSCRYPT_KEY_IDENTIFIER_SIZE 16
+struct fscrypt_policy_v2 {
+ __u8 version;
+ __u8 contents_encryption_mode;
+ __u8 filenames_encryption_mode;
+ __u8 flags;
+ __u8 __reserved[4];
+ __u8 master_key_identifier[FSCRYPT_KEY_IDENTIFIER_SIZE];
+};
+
+/* Struct passed to FS_IOC_GET_ENCRYPTION_POLICY_EX */
+struct fscrypt_get_policy_ex_arg {
+ __u64 policy_size; /* input/output */
+ union {
+ __u8 version;
+ struct fscrypt_policy_v1 v1;
+ struct fscrypt_policy_v2 v2;
+ } policy; /* output */
+};
+
+/*
+ * v1 policy keys are specified by an arbitrary 8-byte key "descriptor",
+ * matching fscrypt_policy_v1::master_key_descriptor.
+ */
+#define FSCRYPT_KEY_SPEC_TYPE_DESCRIPTOR 1
+
+/*
+ * v2 policy keys are specified by a 16-byte key "identifier" which the kernel
+ * calculates as a cryptographic hash of the key itself,
+ * matching fscrypt_policy_v2::master_key_identifier.
+ */
+#define FSCRYPT_KEY_SPEC_TYPE_IDENTIFIER 2
+
+/*
+ * Specifies a key, either for v1 or v2 policies. This doesn't contain the
+ * actual key itself; this is just the "name" of the key.
+ */
+struct fscrypt_key_specifier {
+ __u32 type; /* one of FSCRYPT_KEY_SPEC_TYPE_* */
+ __u32 __reserved;
+ union {
+ __u8 __reserved[32]; /* reserve some extra space */
+ __u8 descriptor[FSCRYPT_KEY_DESCRIPTOR_SIZE];
+ __u8 identifier[FSCRYPT_KEY_IDENTIFIER_SIZE];
+ } u;
+};
+
+/*
+ * Payload of Linux keyring key of type "fscrypt-provisioning", referenced by
+ * fscrypt_add_key_arg::key_id as an alternative to fscrypt_add_key_arg::raw.
+ */
+struct fscrypt_provisioning_key_payload {
+ __u32 type;
+ __u32 __reserved;
+ __u8 raw[];
+};
+
+/* Struct passed to FS_IOC_ADD_ENCRYPTION_KEY */
+struct fscrypt_add_key_arg {
+ struct fscrypt_key_specifier key_spec;
+ __u32 raw_size;
+ __u32 key_id;
+ __u32 __reserved[7];
+ /* N.B.: "temporary" flag, not reserved upstream */
+#define __FSCRYPT_ADD_KEY_FLAG_HW_WRAPPED 0x00000001
+ __u32 __flags;
+ __u8 raw[];
+};
+
+/* Struct passed to FS_IOC_REMOVE_ENCRYPTION_KEY */
+struct fscrypt_remove_key_arg {
+ struct fscrypt_key_specifier key_spec;
+#define FSCRYPT_KEY_REMOVAL_STATUS_FLAG_FILES_BUSY 0x00000001
+#define FSCRYPT_KEY_REMOVAL_STATUS_FLAG_OTHER_USERS 0x00000002
+ __u32 removal_status_flags; /* output */
+ __u32 __reserved[5];
+};
+
+/* Struct passed to FS_IOC_GET_ENCRYPTION_KEY_STATUS */
+struct fscrypt_get_key_status_arg {
+ /* input */
+ struct fscrypt_key_specifier key_spec;
+ __u32 __reserved[6];
+
+ /* output */
+#define FSCRYPT_KEY_STATUS_ABSENT 1
+#define FSCRYPT_KEY_STATUS_PRESENT 2
+#define FSCRYPT_KEY_STATUS_INCOMPLETELY_REMOVED 3
+ __u32 status;
+#define FSCRYPT_KEY_STATUS_FLAG_ADDED_BY_SELF 0x00000001
+ __u32 status_flags;
+ __u32 user_count;
+ __u32 __out_reserved[13];
+};
+
+#define FS_IOC_SET_ENCRYPTION_POLICY _IOR('f', 19, struct fscrypt_policy)
+#define FS_IOC_GET_ENCRYPTION_PWSALT _IOW('f', 20, __u8[16])
+#define FS_IOC_GET_ENCRYPTION_POLICY _IOW('f', 21, struct fscrypt_policy)
+#define FS_IOC_GET_ENCRYPTION_POLICY_EX _IOWR('f', 22, __u8[9]) /* size + version */
+#define FS_IOC_ADD_ENCRYPTION_KEY _IOWR('f', 23, struct fscrypt_add_key_arg)
+#define FS_IOC_REMOVE_ENCRYPTION_KEY _IOWR('f', 24, struct fscrypt_remove_key_arg)
+#define FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS _IOWR('f', 25, struct fscrypt_remove_key_arg)
+#define FS_IOC_GET_ENCRYPTION_KEY_STATUS _IOWR('f', 26, struct fscrypt_get_key_status_arg)
+#define FS_IOC_GET_ENCRYPTION_NONCE _IOR('f', 27, __u8[16])
+
+/**********************************************************************/
+
+/* old names; don't add anything new here! */
+#ifndef __KERNEL__
+#define FS_KEY_DESCRIPTOR_SIZE FSCRYPT_KEY_DESCRIPTOR_SIZE
+#define FS_POLICY_FLAGS_PAD_4 FSCRYPT_POLICY_FLAGS_PAD_4
+#define FS_POLICY_FLAGS_PAD_8 FSCRYPT_POLICY_FLAGS_PAD_8
+#define FS_POLICY_FLAGS_PAD_16 FSCRYPT_POLICY_FLAGS_PAD_16
+#define FS_POLICY_FLAGS_PAD_32 FSCRYPT_POLICY_FLAGS_PAD_32
+#define FS_POLICY_FLAGS_PAD_MASK FSCRYPT_POLICY_FLAGS_PAD_MASK
+#define FS_POLICY_FLAG_DIRECT_KEY FSCRYPT_POLICY_FLAG_DIRECT_KEY
+#define FS_POLICY_FLAGS_VALID FSCRYPT_POLICY_FLAGS_VALID
+#define FS_ENCRYPTION_MODE_INVALID 0 /* never used */
+#define FS_ENCRYPTION_MODE_AES_256_XTS FSCRYPT_MODE_AES_256_XTS
+#define FS_ENCRYPTION_MODE_AES_256_GCM 2 /* never used */
+#define FS_ENCRYPTION_MODE_AES_256_CBC 3 /* never used */
+#define FS_ENCRYPTION_MODE_AES_256_CTS FSCRYPT_MODE_AES_256_CTS
+#define FS_ENCRYPTION_MODE_AES_128_CBC FSCRYPT_MODE_AES_128_CBC
+#define FS_ENCRYPTION_MODE_AES_128_CTS FSCRYPT_MODE_AES_128_CTS
+#define FS_ENCRYPTION_MODE_SPECK128_256_XTS 7 /* removed */
+#define FS_ENCRYPTION_MODE_SPECK128_256_CTS 8 /* removed */
+#define FS_ENCRYPTION_MODE_ADIANTUM FSCRYPT_MODE_ADIANTUM
+#define FS_KEY_DESC_PREFIX FSCRYPT_KEY_DESC_PREFIX
+#define FS_KEY_DESC_PREFIX_SIZE FSCRYPT_KEY_DESC_PREFIX_SIZE
+#define FS_MAX_KEY_SIZE FSCRYPT_MAX_KEY_SIZE
+#endif /* !__KERNEL__ */
+
+#endif /* _UAPI_LINUX_FSCRYPT_H */
diff --git a/include/uapi/linux/fsverity.h b/include/uapi/linux/fsverity.h
new file mode 100644
index 0000000..33f4415
--- /dev/null
+++ b/include/uapi/linux/fsverity.h
@@ -0,0 +1,89 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ * fs-verity user API
+ *
+ * These ioctls can be used on filesystems that support fs-verity. See the
+ * "User API" section of Documentation/filesystems/fsverity.rst.
+ *
+ * Copyright 2019 Google LLC
+ */
+#ifndef _UAPI_LINUX_FSVERITY_H
+#define _UAPI_LINUX_FSVERITY_H
+
+#include <linux/ioctl.h>
+#include <linux/types.h>
+
+#define FS_VERITY_HASH_ALG_SHA256 1
+#define FS_VERITY_HASH_ALG_SHA512 2
+
+struct fsverity_enable_arg {
+ __u32 version;
+ __u32 hash_algorithm;
+ __u32 block_size;
+ __u32 salt_size;
+ __u64 salt_ptr;
+ __u32 sig_size;
+ __u32 __reserved1;
+ __u64 sig_ptr;
+ __u64 __reserved2[11];
+};
+
+struct fsverity_digest {
+ __u16 digest_algorithm;
+ __u16 digest_size; /* input/output */
+ __u8 digest[];
+};
+
+/*
+ * Struct containing a file's Merkle tree properties. The fs-verity file digest
+ * is the hash of this struct. A userspace program needs this struct only if it
+ * needs to compute fs-verity file digests itself, e.g. in order to sign files.
+ * It isn't needed just to enable fs-verity on a file.
+ *
+ * Note: when computing the file digest, 'sig_size' and 'signature' must be left
+ * zero and empty, respectively. These fields are present only because some
+ * filesystems reuse this struct as part of their on-disk format.
+ */
+struct fsverity_descriptor {
+ __u8 version; /* must be 1 */
+ __u8 hash_algorithm; /* Merkle tree hash algorithm */
+ __u8 log_blocksize; /* log2 of size of data and tree blocks */
+ __u8 salt_size; /* size of salt in bytes; 0 if none */
+#ifdef __KERNEL__
+ __le32 sig_size;
+#else
+ __le32 __reserved_0x04; /* must be 0 */
+#endif
+ __le64 data_size; /* size of file the Merkle tree is built over */
+ __u8 root_hash[64]; /* Merkle tree root hash */
+ __u8 salt[32]; /* salt prepended to each hashed block */
+ __u8 __reserved[144]; /* must be 0's */
+#ifdef __KERNEL__
+ __u8 signature[];
+#endif
+};
+
+/*
+ * Format in which fs-verity file digests are signed in built-in signatures.
+ * This is the same as 'struct fsverity_digest', except here some magic bytes
+ * are prepended to provide some context about what is being signed in case the
+ * same key is used for non-fsverity purposes, and here the fields have fixed
+ * endianness.
+ *
+ * This struct is specific to the built-in signature verification support, which
+ * is optional. fs-verity users may also verify signatures in userspace, in
+ * which case userspace is responsible for deciding on what bytes are signed.
+ * This struct may still be used, but it doesn't have to be. For example,
+ * userspace could instead use a string like "sha256:$digest_as_hex_string".
+ */
+struct fsverity_formatted_digest {
+ char magic[8]; /* must be "FSVerity" */
+ __le16 digest_algorithm;
+ __le16 digest_size;
+ __u8 digest[];
+};
+
+#define FS_IOC_ENABLE_VERITY _IOW('f', 133, struct fsverity_enable_arg)
+#define FS_IOC_MEASURE_VERITY _IOWR('f', 134, struct fsverity_digest)
+
+#endif /* _UAPI_LINUX_FSVERITY_H */
diff --git a/include/uapi/linux/fuse.h b/include/uapi/linux/fuse.h
index 2170e58..24af4ed 100644
--- a/include/uapi/linux/fuse.h
+++ b/include/uapi/linux/fuse.h
@@ -383,6 +383,7 @@ enum fuse_opcode {
FUSE_READDIRPLUS = 44,
FUSE_RENAME2 = 45,
FUSE_LSEEK = 46,
+ FUSE_CANONICAL_PATH= 2016,
/* CUSE specific operations */
CUSE_INIT = 4096,
diff --git a/include/uapi/linux/incrementalfs.h b/include/uapi/linux/incrementalfs.h
new file mode 100644
index 0000000..13c3d51
--- /dev/null
+++ b/include/uapi/linux/incrementalfs.h
@@ -0,0 +1,334 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ * Userspace interface for Incremental FS.
+ *
+ * Incremental FS is special-purpose Linux virtual file system that allows
+ * execution of a program while its binary and resource files are still being
+ * lazily downloaded over the network, USB etc.
+ *
+ * Copyright 2019 Google LLC
+ */
+#ifndef _UAPI_LINUX_INCREMENTALFS_H
+#define _UAPI_LINUX_INCREMENTALFS_H
+
+#include <linux/limits.h>
+#include <linux/ioctl.h>
+#include <linux/types.h>
+#include <linux/xattr.h>
+
+/* ===== constants ===== */
+#define INCFS_NAME "incremental-fs"
+#define INCFS_MAGIC_NUMBER (0x5346434e49ul)
+#define INCFS_DATA_FILE_BLOCK_SIZE 4096
+#define INCFS_HEADER_VER 1
+
+/* TODO: This value is assumed in incfs_copy_signature_info_from_user to be the
+ * actual signature length. Set back to 64 when fixed.
+ */
+#define INCFS_MAX_HASH_SIZE 32
+#define INCFS_MAX_FILE_ATTR_SIZE 512
+
+#define INCFS_PENDING_READS_FILENAME ".pending_reads"
+#define INCFS_LOG_FILENAME ".log"
+#define INCFS_XATTR_ID_NAME (XATTR_USER_PREFIX "incfs.id")
+#define INCFS_XATTR_SIZE_NAME (XATTR_USER_PREFIX "incfs.size")
+#define INCFS_XATTR_METADATA_NAME (XATTR_USER_PREFIX "incfs.metadata")
+
+#define INCFS_MAX_SIGNATURE_SIZE 8096
+#define INCFS_SIGNATURE_VERSION 2
+#define INCFS_SIGNATURE_SECTIONS 2
+
+#define INCFS_IOCTL_BASE_CODE 'g'
+
+/* ===== ioctl requests on the command dir ===== */
+
+/* Create a new file */
+#define INCFS_IOC_CREATE_FILE \
+ _IOWR(INCFS_IOCTL_BASE_CODE, 30, struct incfs_new_file_args)
+
+/* Read file signature */
+#define INCFS_IOC_READ_FILE_SIGNATURE \
+ _IOR(INCFS_IOCTL_BASE_CODE, 31, struct incfs_get_file_sig_args)
+
+/*
+ * Fill in one or more data block. This may only be called on a handle
+ * passed as a parameter to INCFS_IOC_PERMIT_FILLING
+ *
+ * Returns number of blocks filled in, or error if none were
+ */
+#define INCFS_IOC_FILL_BLOCKS \
+ _IOR(INCFS_IOCTL_BASE_CODE, 32, struct incfs_fill_blocks)
+
+/*
+ * Permit INCFS_IOC_FILL_BLOCKS on the given file descriptor
+ * May only be called on .pending_reads file
+ *
+ * Returns 0 on success or error
+ */
+#define INCFS_IOC_PERMIT_FILL \
+ _IOW(INCFS_IOCTL_BASE_CODE, 33, struct incfs_permit_fill)
+
+/*
+ * Fills buffer with ranges of populated blocks
+ *
+ * Returns 0 if all ranges written
+ * error otherwise
+ *
+ * Either way, range_buffer_size_out is set to the number
+ * of bytes written. Should be set to 0 by caller. The ranges
+ * filled are valid, but if an error was returned there might
+ * be more ranges to come.
+ *
+ * Ranges are ranges of filled blocks:
+ *
+ * 1 2 7 9
+ *
+ * means blocks 1, 2, 7, 8, 9 are filled, 0, 3, 4, 5, 6 and 10 on
+ * are not
+ *
+ * If hashing is enabled for the file, the hash blocks are simply
+ * treated as though they immediately followed the data blocks.
+ */
+#define INCFS_IOC_GET_FILLED_BLOCKS \
+ _IOR(INCFS_IOCTL_BASE_CODE, 34, struct incfs_get_filled_blocks_args)
+
+enum incfs_compression_alg {
+ COMPRESSION_NONE = 0,
+ COMPRESSION_LZ4 = 1
+};
+
+enum incfs_block_flags {
+ INCFS_BLOCK_FLAGS_NONE = 0,
+ INCFS_BLOCK_FLAGS_HASH = 1,
+};
+
+typedef struct {
+ __u8 bytes[16];
+} incfs_uuid_t __attribute__((aligned (8)));
+
+/*
+ * Description of a pending read. A pending read - a read call by
+ * a userspace program for which the filesystem currently doesn't have data.
+ */
+struct incfs_pending_read_info {
+ /* Id of a file that is being read from. */
+ incfs_uuid_t file_id;
+
+ /* A number of microseconds since system boot to the read. */
+ __aligned_u64 timestamp_us;
+
+ /* Index of a file block that is being read. */
+ __u32 block_index;
+
+ /* A serial number of this pending read. */
+ __u32 serial_number;
+};
+
+/*
+ * Description of a data or hash block to add to a data file.
+ */
+struct incfs_fill_block {
+ /* Index of a data block. */
+ __u32 block_index;
+
+ /* Length of data */
+ __u32 data_len;
+
+ /*
+ * A pointer to an actual data for the block.
+ *
+ * Equivalent to: __u8 *data;
+ */
+ __aligned_u64 data;
+
+ /*
+ * Compression algorithm used to compress the data block.
+ * Values from enum incfs_compression_alg.
+ */
+ __u8 compression;
+
+ /* Values from enum incfs_block_flags */
+ __u8 flags;
+
+ __u16 reserved1;
+
+ __u32 reserved2;
+
+ __aligned_u64 reserved3;
+};
+
+/*
+ * Description of a number of blocks to add to a data file
+ *
+ * Argument for INCFS_IOC_FILL_BLOCKS
+ */
+struct incfs_fill_blocks {
+ /* Number of blocks */
+ __u64 count;
+
+ /* A pointer to an array of incfs_fill_block structs */
+ __aligned_u64 fill_blocks;
+};
+
+/*
+ * Permit INCFS_IOC_FILL_BLOCKS on the given file descriptor
+ * May only be called on .pending_reads file
+ *
+ * Argument for INCFS_IOC_PERMIT_FILL
+ */
+struct incfs_permit_fill {
+ /* File to permit fills on */
+ __u32 file_descriptor;
+};
+
+enum incfs_hash_tree_algorithm {
+ INCFS_HASH_TREE_NONE = 0,
+ INCFS_HASH_TREE_SHA256 = 1
+};
+
+/*
+ * Create a new file or directory.
+ */
+struct incfs_new_file_args {
+ /* Id of a file to create. */
+ incfs_uuid_t file_id;
+
+ /*
+ * Total size of the new file. Ignored if S_ISDIR(mode).
+ */
+ __aligned_u64 size;
+
+ /*
+ * File mode. Permissions and dir flag.
+ */
+ __u16 mode;
+
+ __u16 reserved1;
+
+ __u32 reserved2;
+
+ /*
+ * A pointer to a null-terminated relative path to the file's parent
+ * dir.
+ * Max length: PATH_MAX
+ *
+ * Equivalent to: char *directory_path;
+ */
+ __aligned_u64 directory_path;
+
+ /*
+ * A pointer to a null-terminated file's name.
+ * Max length: PATH_MAX
+ *
+ * Equivalent to: char *file_name;
+ */
+ __aligned_u64 file_name;
+
+ /*
+ * A pointer to a file attribute to be set on creation.
+ *
+ * Equivalent to: u8 *file_attr;
+ */
+ __aligned_u64 file_attr;
+
+ /*
+ * Length of the data buffer specfied by file_attr.
+ * Max value: INCFS_MAX_FILE_ATTR_SIZE
+ */
+ __u32 file_attr_len;
+
+ __u32 reserved4;
+
+ /*
+ * Points to an APK V4 Signature data blob
+ * Signature must have two sections
+ * Format is:
+ * u32 version
+ * u32 size_of_hash_info_section
+ * u8 hash_info_section[]
+ * u32 size_of_signing_info_section
+ * u8 signing_info_section[]
+ *
+ * Note that incfs does not care about what is in signing_info_section
+ *
+ * hash_info_section has following format:
+ * u32 hash_algorithm; // Must be SHA256 == 1
+ * u8 log2_blocksize; // Must be 12 for 4096 byte blocks
+ * u32 salt_size;
+ * u8 salt[];
+ * u32 hash_size;
+ * u8 root_hash[];
+ */
+ __aligned_u64 signature_info;
+
+ /* Size of signature_info */
+ __aligned_u64 signature_size;
+
+ __aligned_u64 reserved6;
+};
+
+/*
+ * Request a digital signature blob for a given file.
+ * Argument for INCFS_IOC_READ_FILE_SIGNATURE ioctl
+ */
+struct incfs_get_file_sig_args {
+ /*
+ * A pointer to the data buffer to save an signature blob to.
+ *
+ * Equivalent to: u8 *file_signature;
+ */
+ __aligned_u64 file_signature;
+
+ /* Size of the buffer at file_signature. */
+ __u32 file_signature_buf_size;
+
+ /*
+ * Number of bytes save file_signature buffer.
+ * It is set after ioctl done.
+ */
+ __u32 file_signature_len_out;
+};
+
+struct incfs_filled_range {
+ __u32 begin;
+ __u32 end;
+};
+
+/*
+ * Request ranges of filled blocks
+ * Argument for INCFS_IOC_GET_FILLED_BLOCKS
+ */
+struct incfs_get_filled_blocks_args {
+ /*
+ * A buffer to populate with ranges of filled blocks
+ *
+ * Equivalent to struct incfs_filled_ranges *range_buffer
+ */
+ __aligned_u64 range_buffer;
+
+ /* Size of range_buffer */
+ __u32 range_buffer_size;
+
+ /* Start index to read from */
+ __u32 start_index;
+
+ /*
+ * End index to read to. 0 means read to end. This is a range,
+ * so incfs will read from start_index to end_index - 1
+ */
+ __u32 end_index;
+
+ /* Actual number of blocks in file */
+ __u32 total_blocks_out;
+
+ /* The number of data blocks in file */
+ __u32 data_blocks_out;
+
+ /* Number of bytes written to range buffer */
+ __u32 range_buffer_size_out;
+
+ /* Sector scanned up to, if the call was interrupted */
+ __u32 index_out;
+};
+
+#endif /* _UAPI_LINUX_INCREMENTALFS_H */
diff --git a/include/uapi/linux/input-event-codes.h b/include/uapi/linux/input-event-codes.h
index c3e84f7..8876c98 100644
--- a/include/uapi/linux/input-event-codes.h
+++ b/include/uapi/linux/input-event-codes.h
@@ -796,7 +796,11 @@
#define SW_MUTE_DEVICE 0x0e /* set = device disabled */
#define SW_PEN_INSERTED 0x0f /* set = pen inserted */
#define SW_MACHINE_COVER 0x10 /* set = cover closed */
-#define SW_MAX 0x10
+#define SW_HPHL_OVERCURRENT 0x11 /* set = over current on left hph */
+#define SW_HPHR_OVERCURRENT 0x12 /* set = over current on right hph */
+#define SW_MICROPHONE2_INSERT 0x13 /* set = inserted */
+#define SW_UNSUPPORT_INSERT 0x14 /* set = unsupported device inserted */
+#define SW_MAX 0x20
#define SW_CNT (SW_MAX+1)
/*
diff --git a/include/uapi/linux/ip.h b/include/uapi/linux/ip.h
index e42d13b..d3a717d8 100644
--- a/include/uapi/linux/ip.h
+++ b/include/uapi/linux/ip.h
@@ -169,6 +169,7 @@ enum
IPV4_DEVCONF_DROP_UNICAST_IN_L2_MULTICAST,
IPV4_DEVCONF_DROP_GRATUITOUS_ARP,
IPV4_DEVCONF_BC_FORWARDING,
+ IPV4_DEVCONF_VENDOR_PADDING,
__IPV4_DEVCONF_MAX
};
diff --git a/include/uapi/linux/kcov.h b/include/uapi/linux/kcov.h
index 9529867..1d0350e 100644
--- a/include/uapi/linux/kcov.h
+++ b/include/uapi/linux/kcov.h
@@ -4,9 +4,24 @@
#include <linux/types.h>
+/*
+ * Argument for KCOV_REMOTE_ENABLE ioctl, see Documentation/dev-tools/kcov.rst
+ * and the comment before kcov_remote_start() for usage details.
+ */
+struct kcov_remote_arg {
+ __u32 trace_mode; /* KCOV_TRACE_PC or KCOV_TRACE_CMP */
+ __u32 area_size; /* Length of coverage buffer in words */
+ __u32 num_handles; /* Size of handles array */
+ __aligned_u64 common_handle;
+ __aligned_u64 handles[0];
+};
+
+#define KCOV_REMOTE_MAX_HANDLES 0x100
+
#define KCOV_INIT_TRACE _IOR('c', 1, unsigned long)
#define KCOV_ENABLE _IO('c', 100)
#define KCOV_DISABLE _IO('c', 101)
+#define KCOV_REMOTE_ENABLE _IOW('c', 102, struct kcov_remote_arg)
enum {
/*
@@ -32,4 +47,17 @@ enum {
#define KCOV_CMP_SIZE(n) ((n) << 1)
#define KCOV_CMP_MASK KCOV_CMP_SIZE(3)
+#define KCOV_SUBSYSTEM_COMMON (0x00ull << 56)
+#define KCOV_SUBSYSTEM_USB (0x01ull << 56)
+
+#define KCOV_SUBSYSTEM_MASK (0xffull << 56)
+#define KCOV_INSTANCE_MASK (0xffffffffull)
+
+static inline __u64 kcov_remote_handle(__u64 subsys, __u64 inst)
+{
+ if (subsys & ~KCOV_SUBSYSTEM_MASK || inst & ~KCOV_INSTANCE_MASK)
+ return 0;
+ return subsys | inst;
+}
+
#endif /* _LINUX_KCOV_IOCTLS_H */
diff --git a/include/uapi/linux/limits.h b/include/uapi/linux/limits.h
index c3547f0..6bcbe30 100644
--- a/include/uapi/linux/limits.h
+++ b/include/uapi/linux/limits.h
@@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef _LINUX_LIMITS_H
-#define _LINUX_LIMITS_H
+#ifndef _UAPI_LINUX_LIMITS_H
+#define _UAPI_LINUX_LIMITS_H
#define NR_OPEN 1024
diff --git a/include/uapi/linux/loop.h b/include/uapi/linux/loop.h
index 080a8df..24a1c45 100644
--- a/include/uapi/linux/loop.h
+++ b/include/uapi/linux/loop.h
@@ -25,6 +25,16 @@ enum {
LO_FLAGS_DIRECT_IO = 16,
};
+/* LO_FLAGS that can be set using LOOP_SET_STATUS(64) */
+#define LOOP_SET_STATUS_SETTABLE_FLAGS (LO_FLAGS_AUTOCLEAR | LO_FLAGS_PARTSCAN)
+
+/* LO_FLAGS that can be cleared using LOOP_SET_STATUS(64) */
+#define LOOP_SET_STATUS_CLEARABLE_FLAGS (LO_FLAGS_AUTOCLEAR)
+
+/* LO_FLAGS that can be set using LOOP_CONFIGURE */
+#define LOOP_CONFIGURE_SETTABLE_FLAGS (LO_FLAGS_READ_ONLY | LO_FLAGS_AUTOCLEAR \
+ | LO_FLAGS_PARTSCAN | LO_FLAGS_DIRECT_IO)
+
#include <asm/posix_types.h> /* for __kernel_old_dev_t */
#include <linux/types.h> /* for __u64 */
@@ -37,7 +47,7 @@ struct loop_info {
int lo_offset;
int lo_encrypt_type;
int lo_encrypt_key_size; /* ioctl w/o */
- int lo_flags; /* ioctl r/o */
+ int lo_flags;
char lo_name[LO_NAME_SIZE];
unsigned char lo_encrypt_key[LO_KEY_SIZE]; /* ioctl w/o */
unsigned long lo_init[2];
@@ -53,13 +63,29 @@ struct loop_info64 {
__u32 lo_number; /* ioctl r/o */
__u32 lo_encrypt_type;
__u32 lo_encrypt_key_size; /* ioctl w/o */
- __u32 lo_flags; /* ioctl r/o */
+ __u32 lo_flags;
__u8 lo_file_name[LO_NAME_SIZE];
__u8 lo_crypt_name[LO_NAME_SIZE];
__u8 lo_encrypt_key[LO_KEY_SIZE]; /* ioctl w/o */
__u64 lo_init[2];
};
+/**
+ * struct loop_config - Complete configuration for a loop device.
+ * @fd: fd of the file to be used as a backing file for the loop device.
+ * @block_size: block size to use; ignored if 0.
+ * @info: struct loop_info64 to configure the loop device with.
+ *
+ * This structure is used with the LOOP_CONFIGURE ioctl, and can be used to
+ * atomically setup and configure all loop device parameters at once.
+ */
+struct loop_config {
+ __u32 fd;
+ __u32 block_size;
+ struct loop_info64 info;
+ __u64 __reserved[8];
+};
+
/*
* Loop filter types
*/
@@ -90,6 +116,7 @@ struct loop_info64 {
#define LOOP_SET_CAPACITY 0x4C07
#define LOOP_SET_DIRECT_IO 0x4C08
#define LOOP_SET_BLOCK_SIZE 0x4C09
+#define LOOP_CONFIGURE 0x4C0A
/* /dev/loop-control interface */
#define LOOP_CTL_ADD 0x4C80
diff --git a/include/uapi/linux/magic.h b/include/uapi/linux/magic.h
index 1a6fee9..291f3f4 100644
--- a/include/uapi/linux/magic.h
+++ b/include/uapi/linux/magic.h
@@ -56,6 +56,8 @@
#define REISER2FS_SUPER_MAGIC_STRING "ReIsEr2Fs"
#define REISER2FS_JR_SUPER_MAGIC_STRING "ReIsEr3Fs"
+#define SDCARDFS_SUPER_MAGIC 0x5dca2df5
+
#define SMB_SUPER_MAGIC 0x517B
#define CGROUP_SUPER_MAGIC 0x27e0eb
#define CGROUP2_SUPER_MAGIC 0x63677270
@@ -72,6 +74,7 @@
#define DAXFS_MAGIC 0x64646178
#define BINFMTFS_MAGIC 0x42494e4d
#define DEVPTS_SUPER_MAGIC 0x1cd1
+#define BINDERFS_SUPER_MAGIC 0x6c6f6f70
#define FUTEXFS_SUPER_MAGIC 0xBAD1DEA
#define PIPEFS_MAGIC 0x50495045
#define PROC_SUPER_MAGIC 0x9fa0
@@ -89,5 +92,6 @@
#define UDF_SUPER_MAGIC 0x15013346
#define BALLOON_KVM_MAGIC 0x13661366
#define ZSMALLOC_MAGIC 0x58295829
+#define DMA_BUF_MAGIC 0x444d4142 /* "DMAB" */
#endif /* __LINUX_MAGIC_H__ */
diff --git a/include/uapi/linux/ndctl.h b/include/uapi/linux/ndctl.h
index 7b0189d..de5d902 100644
--- a/include/uapi/linux/ndctl.h
+++ b/include/uapi/linux/ndctl.h
@@ -202,10 +202,6 @@ enum nd_driver_flags {
ND_DRIVER_DAX_PMEM = 1 << ND_DEVICE_DAX_PMEM,
};
-enum {
- ND_MIN_NAMESPACE_SIZE = PAGE_SIZE,
-};
-
enum ars_masks {
ARS_STATUS_MASK = 0x0000FFFF,
ARS_EXT_STATUS_SHIFT = 16,
diff --git a/include/uapi/linux/netfilter/xt_IDLETIMER.h b/include/uapi/linux/netfilter/xt_IDLETIMER.h
index 3c586a1..c82a1c1 100644
--- a/include/uapi/linux/netfilter/xt_IDLETIMER.h
+++ b/include/uapi/linux/netfilter/xt_IDLETIMER.h
@@ -5,6 +5,7 @@
* Header file for Xtables timer target module.
*
* Copyright (C) 2004, 2010 Nokia Corporation
+ *
* Written by Timo Teras <ext-timo.teras@nokia.com>
*
* Converted to x_tables and forward-ported to 2.6.34
@@ -33,12 +34,19 @@
#include <linux/types.h>
#define MAX_IDLETIMER_LABEL_SIZE 28
+#define NLMSG_MAX_SIZE 64
+
+#define NL_EVENT_TYPE_INACTIVE 0
+#define NL_EVENT_TYPE_ACTIVE 1
struct idletimer_tg_info {
__u32 timeout;
char label[MAX_IDLETIMER_LABEL_SIZE];
+ /* Use netlink messages for notification in addition to sysfs */
+ __u8 send_nl_msg;
+
/* for kernel module internal use only */
struct idletimer_tg *timer __attribute__((aligned(8)));
};
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index fa43dd5..e98d90b 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -52,6 +52,11 @@
#define NL80211_MULTICAST_GROUP_NAN "nan"
#define NL80211_MULTICAST_GROUP_TESTMODE "testmode"
+#define NL80211_EDMG_BW_CONFIG_MIN 4
+#define NL80211_EDMG_BW_CONFIG_MAX 15
+#define NL80211_EDMG_CHANNELS_MIN 1
+#define NL80211_EDMG_CHANNELS_MAX 0x3c /* 0b00111100 */
+
/**
* DOC: Station handling
*
@@ -1033,6 +1038,43 @@
* %NL80211_ATTR_CHANNEL_WIDTH,%NL80211_ATTR_NSS attributes with its
* address(specified in %NL80211_ATTR_MAC).
*
+ * @NL80211_CMD_GET_FTM_RESPONDER_STATS: Retrieve FTM responder statistics, in
+ * the %NL80211_ATTR_FTM_RESPONDER_STATS attribute.
+ *
+ * @NL80211_CMD_PEER_MEASUREMENT_START: start a (set of) peer measurement(s)
+ * with the given parameters, which are encapsulated in the nested
+ * %NL80211_ATTR_PEER_MEASUREMENTS attribute. Optionally, MAC address
+ * randomization may be enabled and configured by specifying the
+ * %NL80211_ATTR_MAC and %NL80211_ATTR_MAC_MASK attributes.
+ * If a timeout is requested, use the %NL80211_ATTR_TIMEOUT attribute.
+ * A u64 cookie for further %NL80211_ATTR_COOKIE use is is returned in
+ * the netlink extended ack message.
+ *
+ * To cancel a measurement, close the socket that requested it.
+ *
+ * Measurement results are reported to the socket that requested the
+ * measurement using @NL80211_CMD_PEER_MEASUREMENT_RESULT when they
+ * become available, so applications must ensure a large enough socket
+ * buffer size.
+ *
+ * Depending on driver support it may or may not be possible to start
+ * multiple concurrent measurements.
+ * @NL80211_CMD_PEER_MEASUREMENT_RESULT: This command number is used for the
+ * result notification from the driver to the requesting socket.
+ * @NL80211_CMD_PEER_MEASUREMENT_COMPLETE: Notification only, indicating that
+ * the measurement completed, using the measurement cookie
+ * (%NL80211_ATTR_COOKIE).
+ *
+ * @NL80211_CMD_NOTIFY_RADAR: Notify the kernel that a radar signal was
+ * detected and reported by a neighboring device on the channel
+ * indicated by %NL80211_ATTR_WIPHY_FREQ and other attributes
+ * determining the width and type.
+ *
+ * @NL80211_CMD_UPDATE_OWE_INFO: This interface allows the host driver to
+ * offload OWE processing to user space. This intends to support
+ * OWE AKM by the host drivers that implement SME but rely
+ * on the user space for the cryptographic/DH IE processing in AP mode.
+ *
* @NL80211_CMD_MAX: highest used command number
* @__NL80211_CMD_AFTER_LAST: internal use
*/
@@ -1245,6 +1287,16 @@ enum nl80211_commands {
NL80211_CMD_CONTROL_PORT_FRAME,
+ NL80211_CMD_GET_FTM_RESPONDER_STATS,
+
+ NL80211_CMD_PEER_MEASUREMENT_START,
+ NL80211_CMD_PEER_MEASUREMENT_RESULT,
+ NL80211_CMD_PEER_MEASUREMENT_COMPLETE,
+
+ NL80211_CMD_NOTIFY_RADAR,
+
+ NL80211_CMD_UPDATE_OWE_INFO,
+
/* add new commands above here */
/* used to define NL80211_CMD_MAX below */
@@ -2220,10 +2272,10 @@ enum nl80211_commands {
* &enum nl80211_external_auth_action value). This is used with the
* %NL80211_CMD_EXTERNAL_AUTH request event.
* @NL80211_ATTR_EXTERNAL_AUTH_SUPPORT: Flag attribute indicating that the user
- * space supports external authentication. This attribute shall be used
- * only with %NL80211_CMD_CONNECT request. The driver may offload
- * authentication processing to user space if this capability is indicated
- * in NL80211_CMD_CONNECT requests from the user space.
+ * space supports external authentication. This attribute shall be used
+ * with %NL80211_CMD_CONNECT and %NL80211_CMD_START_AP request. The driver
+ * may offload authentication processing to user space if this capability
+ * is indicated in the respective requests from the user space.
*
* @NL80211_ATTR_NSS: Station's New/updated RX_NSS value notified using this
* u8 attribute. This is used with %NL80211_CMD_STA_OPMODE_CHANGED.
@@ -2241,6 +2293,64 @@ enum nl80211_commands {
* association request when used with NL80211_CMD_NEW_STATION). Can be set
* only if %NL80211_STA_FLAG_WME is set.
*
+ * @NL80211_ATTR_FTM_RESPONDER: nested attribute which user-space can include
+ * in %NL80211_CMD_START_AP or %NL80211_CMD_SET_BEACON for fine timing
+ * measurement (FTM) responder functionality and containing parameters as
+ * possible, see &enum nl80211_ftm_responder_attr
+ *
+ * @NL80211_ATTR_FTM_RESPONDER_STATS: Nested attribute with FTM responder
+ * statistics, see &enum nl80211_ftm_responder_stats.
+ *
+ * @NL80211_ATTR_TIMEOUT: Timeout for the given operation in milliseconds (u32),
+ * if the attribute is not given no timeout is requested. Note that 0 is an
+ * invalid value.
+ *
+ * @NL80211_ATTR_PEER_MEASUREMENTS: peer measurements request (and result)
+ * data, uses nested attributes specified in
+ * &enum nl80211_peer_measurement_attrs.
+ * This is also used for capability advertisement in the wiphy information,
+ * with the appropriate sub-attributes.
+ *
+ * @NL80211_ATTR_AIRTIME_WEIGHT: Station's weight when scheduled by the airtime
+ * scheduler.
+ *
+ * @NL80211_ATTR_STA_TX_POWER_SETTING: Transmit power setting type (u8) for
+ * station associated with the AP. See &enum nl80211_tx_power_setting for
+ * possible values.
+ * @NL80211_ATTR_STA_TX_POWER: Transmit power level (s16) in dBm units. This
+ * allows to set Tx power for a station. If this attribute is not included,
+ * the default per-interface tx power setting will be overriding. Driver
+ * should be picking up the lowest tx power, either tx power per-interface
+ * or per-station.
+ *
+ * @NL80211_ATTR_SAE_PASSWORD: attribute for passing SAE password material. It
+ * is used with %NL80211_CMD_CONNECT to provide password for offloading
+ * SAE authentication for WPA3-Personal networks.
+ *
+ * @NL80211_ATTR_TWT_RESPONDER: Enable target wait time responder support.
+ *
+ * @NL80211_ATTR_HE_OBSS_PD: nested attribute for OBSS Packet Detection
+ * functionality.
+ *
+ * @NL80211_ATTR_WIPHY_EDMG_CHANNELS: bitmap that indicates the 2.16 GHz
+ * channel(s) that are allowed to be used for EDMG transmissions.
+ * Defined by IEEE P802.11ay/D4.0 section 9.4.2.251. (u8 attribute)
+ * @NL80211_ATTR_WIPHY_EDMG_BW_CONFIG: Channel BW Configuration subfield encodes
+ * the allowed channel bandwidth configurations. (u8 attribute)
+ * Defined by IEEE P802.11ay/D4.0 section 9.4.2.251, Table 13.
+ *
+ * @NL80211_ATTR_VLAN_ID: VLAN ID (1..4094) for the station and VLAN group key
+ * (u16).
+ *
+ * @NL80211_ATTR_HE_BSS_COLOR: nested attribute for BSS Color Settings.
+ *
+ * @NL80211_ATTR_IFTYPE_AKM_SUITES: nested array attribute, with each entry
+ * using attributes from &enum nl80211_iftype_akm_attributes. This
+ * attribute is sent in a response to %NL80211_CMD_GET_WIPHY indicating
+ * supported AKM suites capability per interface. AKMs advertised in
+ * %NL80211_ATTR_AKM_SUITES are default capabilities if AKM suites not
+ * advertised for a specific interface type.
+ *
* @NUM_NL80211_ATTR: total number of nl80211_attrs available
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
@@ -2682,6 +2792,33 @@ enum nl80211_attrs {
NL80211_ATTR_HE_CAPABILITY,
+ NL80211_ATTR_FTM_RESPONDER,
+
+ NL80211_ATTR_FTM_RESPONDER_STATS,
+
+ NL80211_ATTR_TIMEOUT,
+
+ NL80211_ATTR_PEER_MEASUREMENTS,
+
+ NL80211_ATTR_AIRTIME_WEIGHT,
+ NL80211_ATTR_STA_TX_POWER_SETTING,
+ NL80211_ATTR_STA_TX_POWER,
+
+ NL80211_ATTR_SAE_PASSWORD,
+
+ NL80211_ATTR_TWT_RESPONDER,
+
+ NL80211_ATTR_HE_OBSS_PD,
+
+ NL80211_ATTR_WIPHY_EDMG_CHANNELS,
+ NL80211_ATTR_WIPHY_EDMG_BW_CONFIG,
+
+ NL80211_ATTR_VLAN_ID,
+
+ NL80211_ATTR_HE_BSS_COLOR,
+
+ NL80211_ATTR_IFTYPE_AKM_SUITES,
+
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
@@ -3052,6 +3189,12 @@ enum nl80211_sta_bss_param {
* @NL80211_STA_INFO_ACK_SIGNAL: signal strength of the last ACK frame(u8, dBm)
* @NL80211_STA_INFO_DATA_ACK_SIGNAL_AVG: avg signal strength of (data)
* ACK frame (s8, dBm)
+ * @NL80211_STA_INFO_RX_MPDUS: total number of received packets (MPDUs)
+ * (u32, from this station)
+ * @NL80211_STA_INFO_FCS_ERROR_COUNT: total number of packets (MPDUs) received
+ * with an FCS error (u32, from this station). This count may not include
+ * some packets with an FCS error due to TA corruption. Hence this counter
+ * might not be fully accurate.
* @__NL80211_STA_INFO_AFTER_LAST: internal
* @NL80211_STA_INFO_MAX: highest possible station info attribute
*/
@@ -3092,6 +3235,8 @@ enum nl80211_sta_info {
NL80211_STA_INFO_PAD,
NL80211_STA_INFO_ACK_SIGNAL,
NL80211_STA_INFO_DATA_ACK_SIGNAL_AVG,
+ NL80211_STA_INFO_RX_MPDUS,
+ NL80211_STA_INFO_FCS_ERROR_COUNT,
/* keep last */
__NL80211_STA_INFO_AFTER_LAST,
@@ -3265,6 +3410,12 @@ enum nl80211_band_iftype_attr {
* @NL80211_BAND_ATTR_VHT_CAPA: VHT capabilities, as in the HT information IE
* @NL80211_BAND_ATTR_IFTYPE_DATA: nested array attribute, with each entry using
* attributes from &enum nl80211_band_iftype_attr
+ * @NL80211_BAND_ATTR_EDMG_CHANNELS: bitmap that indicates the 2.16 GHz
+ * channel(s) that are allowed to be used for EDMG transmissions.
+ * Defined by IEEE P802.11ay/D4.0 section 9.4.2.251.
+ * @NL80211_BAND_ATTR_EDMG_BW_CONFIG: Channel BW Configuration subfield encodes
+ * the allowed channel bandwidth configurations.
+ * Defined by IEEE P802.11ay/D4.0 section 9.4.2.251, Table 13.
* @NL80211_BAND_ATTR_MAX: highest band attribute currently defined
* @__NL80211_BAND_ATTR_AFTER_LAST: internal use
*/
@@ -3282,6 +3433,9 @@ enum nl80211_band_attr {
NL80211_BAND_ATTR_VHT_CAPA,
NL80211_BAND_ATTR_IFTYPE_DATA,
+ NL80211_BAND_ATTR_EDMG_CHANNELS,
+ NL80211_BAND_ATTR_EDMG_BW_CONFIG,
+
/* keep last */
__NL80211_BAND_ATTR_AFTER_LAST,
NL80211_BAND_ATTR_MAX = __NL80211_BAND_ATTR_AFTER_LAST - 1
@@ -4271,6 +4425,10 @@ enum nl80211_key_default_types {
* @NL80211_KEY_DEFAULT_TYPES: A nested attribute containing flags
* attributes, specifying what a key should be set as default as.
* See &enum nl80211_key_default_types.
+ * @NL80211_KEY_MODE: the mode from enum nl80211_key_mode.
+ * Defaults to @NL80211_KEY_RX_TX.
+ * @NL80211_KEY_DEFAULT_BEACON: flag indicating default Beacon frame key
+ *
* @__NL80211_KEY_AFTER_LAST: internal
* @NL80211_KEY_MAX: highest key attribute
*/
@@ -4284,6 +4442,8 @@ enum nl80211_key_attributes {
NL80211_KEY_DEFAULT_MGMT,
NL80211_KEY_TYPE,
NL80211_KEY_DEFAULT_TYPES,
+ NL80211_KEY_MODE,
+ NL80211_KEY_DEFAULT_BEACON,
/* keep last */
__NL80211_KEY_AFTER_LAST,
@@ -5223,6 +5383,40 @@ enum nl80211_feature_flags {
* @NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT: Driver/device can omit all data
* except for supported rates from the probe request content if requested
* by the %NL80211_SCAN_FLAG_MIN_PREQ_CONTENT flag.
+ * @NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER: Driver supports enabling fine
+ * timing measurement responder role.
+ *
+ * @NL80211_EXT_FEATURE_CAN_REPLACE_PTK0: Driver/device confirm that they are
+ * able to rekey an in-use key correctly. Userspace must not rekey PTK keys
+ * if this flag is not set. Ignoring this can leak clear text packets and/or
+ * freeze the connection.
+ *
+ * @NL80211_EXT_FEATURE_AIRTIME_FAIRNESS: Driver supports getting airtime
+ * fairness for transmitted packets and has enabled airtime fairness
+ * scheduling.
+ *
+ * @NL80211_EXT_FEATURE_AP_PMKSA_CACHING: Driver/device supports PMKSA caching
+ * (set/del PMKSA operations) in AP mode.
+ *
+ * @NL80211_EXT_FEATURE_SCHED_SCAN_BAND_SPECIFIC_RSSI_THOLD: Driver supports
+ * filtering of sched scan results using band specific RSSI thresholds.
+ *
+ * @NL80211_EXT_FEATURE_STA_TX_PWR: This driver supports controlling tx power
+ * to a station.
+ *
+ * @NL80211_EXT_FEATURE_SAE_OFFLOAD: Device wants to do SAE authentication in
+ * station mode (SAE password is passed as part of the connect command).
+ *
+ * @NL80211_EXT_FEATURE_VLAN_OFFLOAD: The driver supports a single netdev
+ * with VLAN tagged frames and separate VLAN-specific netdevs added using
+ * vconfig similarly to the Ethernet case.
+ *
+ * @NL80211_EXT_FEATURE_AQL: The driver supports the Airtime Queue Limit (AQL)
+ * feature, which prevents bufferbloat by using the expected transmission
+ * time to limit the amount of data buffered in the hardware.
+ *
+ * @NL80211_EXT_FEATURE_BEACON_PROTECTION: The driver supports Beacon protection
+ * and can receive key configuration for BIGTK using key indexes 6 and 7.
*
* @NUM_NL80211_EXT_FEATURES: number of extended features.
* @MAX_NL80211_EXT_FEATURES: highest extended feature index.
@@ -5259,6 +5453,17 @@ enum nl80211_ext_feature_index {
NL80211_EXT_FEATURE_TXQS,
NL80211_EXT_FEATURE_SCAN_RANDOM_SN,
NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT,
+ NL80211_EXT_FEATURE_CAN_REPLACE_PTK0,
+ NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER,
+ NL80211_EXT_FEATURE_AIRTIME_FAIRNESS,
+ NL80211_EXT_FEATURE_AP_PMKSA_CACHING,
+ NL80211_EXT_FEATURE_SCHED_SCAN_BAND_SPECIFIC_RSSI_THOLD,
+ NL80211_EXT_FEATURE_EXT_KEY_ID,
+ NL80211_EXT_FEATURE_STA_TX_PWR,
+ NL80211_EXT_FEATURE_SAE_OFFLOAD,
+ NL80211_EXT_FEATURE_VLAN_OFFLOAD,
+ NL80211_EXT_FEATURE_AQL,
+ NL80211_EXT_FEATURE_BEACON_PROTECTION,
/* add new features before the definition below */
NUM_NL80211_EXT_FEATURES,
@@ -5510,9 +5715,14 @@ enum nl80211_crit_proto_id {
* Used by cfg80211_rx_mgmt()
*
* @NL80211_RXMGMT_FLAG_ANSWERED: frame was answered by device/driver.
+ * @NL80211_RXMGMT_FLAG_EXTERNAL_AUTH: Host driver intends to offload
+ * the authentication. Exclusively defined for host drivers that
+ * advertises the SME functionality but would like the userspace
+ * to handle certain authentication algorithms (e.g. SAE).
*/
enum nl80211_rxmgmt_flags {
NL80211_RXMGMT_FLAG_ANSWERED = 1 << 0,
+ NL80211_RXMGMT_FLAG_EXTERNAL_AUTH = 1 << 1,
};
/*
@@ -5798,4 +6008,28 @@ enum nl80211_external_auth_action {
NL80211_EXTERNAL_AUTH_ABORT,
};
+/**
+ * enum nl80211_iftype_akm_attributes - interface type AKM attributes
+ * @__NL80211_IFTYPE_AKM_ATTR_INVALID: Invalid
+ *
+ * @NL80211_IFTYPE_AKM_ATTR_IFTYPES: nested attribute containing a flag
+ * attribute for each interface type that supports AKM suites specified in
+ * %NL80211_IFTYPE_AKM_ATTR_SUITES
+ * @NL80211_IFTYPE_AKM_ATTR_SUITES: an array of u32. Used to indicate supported
+ * AKM suites for the specified interface types.
+ *
+ * @__NL80211_IFTYPE_AKM_ATTR_LAST: Internal
+ * @NL80211_IFTYPE_AKM_ATTR_MAX: highest interface type AKM attribute.
+ */
+enum nl80211_iftype_akm_attributes {
+ __NL80211_IFTYPE_AKM_ATTR_INVALID,
+
+ NL80211_IFTYPE_AKM_ATTR_IFTYPES,
+ NL80211_IFTYPE_AKM_ATTR_SUITES,
+
+ /* keep last */
+ __NL80211_IFTYPE_AKM_ATTR_LAST,
+ NL80211_IFTYPE_AKM_ATTR_MAX = __NL80211_IFTYPE_AKM_ATTR_LAST - 1,
+};
+
#endif /* __LINUX_NL80211_H */
diff --git a/include/uapi/linux/prctl.h b/include/uapi/linux/prctl.h
index b17201e..9d34a52 100644
--- a/include/uapi/linux/prctl.h
+++ b/include/uapi/linux/prctl.h
@@ -220,4 +220,12 @@ struct prctl_mm_map {
# define PR_SPEC_DISABLE (1UL << 2)
# define PR_SPEC_FORCE_DISABLE (1UL << 3)
+#define PR_SET_VMA 0x53564d41
+# define PR_SET_VMA_ANON_NAME 0
+
+/* Tagged user address controls for arm64 */
+#define PR_SET_TAGGED_ADDR_CTRL 55
+#define PR_GET_TAGGED_ADDR_CTRL 56
+# define PR_TAGGED_ADDR_ENABLE (1UL << 0)
+
#endif /* _LINUX_PRCTL_H */
diff --git a/include/uapi/linux/random.h b/include/uapi/linux/random.h
index 26ee913..dcc1b3e 100644
--- a/include/uapi/linux/random.h
+++ b/include/uapi/linux/random.h
@@ -48,9 +48,11 @@ struct rand_pool_info {
* Flags for getrandom(2)
*
* GRND_NONBLOCK Don't block and return EAGAIN instead
- * GRND_RANDOM Use the /dev/random pool instead of /dev/urandom
+ * GRND_RANDOM No effect
+ * GRND_INSECURE Return non-cryptographic random bytes
*/
#define GRND_NONBLOCK 0x0001
#define GRND_RANDOM 0x0002
+#define GRND_INSECURE 0x0004
#endif /* _UAPI_LINUX_RANDOM_H */
diff --git a/include/uapi/linux/sched.h b/include/uapi/linux/sched.h
index 22627f8..617bb59 100644
--- a/include/uapi/linux/sched.h
+++ b/include/uapi/linux/sched.h
@@ -10,6 +10,7 @@
#define CLONE_FS 0x00000200 /* set if fs info shared between processes */
#define CLONE_FILES 0x00000400 /* set if open files shared between processes */
#define CLONE_SIGHAND 0x00000800 /* set if signal handlers and blocked signals shared */
+#define CLONE_PIDFD 0x00001000 /* set if a pidfd should be placed in parent */
#define CLONE_PTRACE 0x00002000 /* set if we want to let tracing continue on the child too */
#define CLONE_VFORK 0x00004000 /* set if the parent wants the child to wake it up on mm_release */
#define CLONE_PARENT 0x00008000 /* set if we want to have the same parent as the cloner */
@@ -50,9 +51,21 @@
#define SCHED_FLAG_RESET_ON_FORK 0x01
#define SCHED_FLAG_RECLAIM 0x02
#define SCHED_FLAG_DL_OVERRUN 0x04
+#define SCHED_FLAG_KEEP_POLICY 0x08
+#define SCHED_FLAG_KEEP_PARAMS 0x10
+#define SCHED_FLAG_UTIL_CLAMP_MIN 0x20
+#define SCHED_FLAG_UTIL_CLAMP_MAX 0x40
+
+#define SCHED_FLAG_KEEP_ALL (SCHED_FLAG_KEEP_POLICY | \
+ SCHED_FLAG_KEEP_PARAMS)
+
+#define SCHED_FLAG_UTIL_CLAMP (SCHED_FLAG_UTIL_CLAMP_MIN | \
+ SCHED_FLAG_UTIL_CLAMP_MAX)
#define SCHED_FLAG_ALL (SCHED_FLAG_RESET_ON_FORK | \
SCHED_FLAG_RECLAIM | \
- SCHED_FLAG_DL_OVERRUN)
+ SCHED_FLAG_DL_OVERRUN | \
+ SCHED_FLAG_KEEP_ALL | \
+ SCHED_FLAG_UTIL_CLAMP)
#endif /* _UAPI_LINUX_SCHED_H */
diff --git a/include/uapi/linux/sched/types.h b/include/uapi/linux/sched/types.h
index 10fbb80..c852153 100644
--- a/include/uapi/linux/sched/types.h
+++ b/include/uapi/linux/sched/types.h
@@ -9,6 +9,7 @@ struct sched_param {
};
#define SCHED_ATTR_SIZE_VER0 48 /* sizeof first published struct */
+#define SCHED_ATTR_SIZE_VER1 56 /* add: util_{min,max} */
/*
* Extended scheduling parameters data structure.
@@ -21,8 +22,33 @@ struct sched_param {
* the tasks may be useful for a wide variety of application fields, e.g.,
* multimedia, streaming, automation and control, and many others.
*
- * This variant (sched_attr) is meant at describing a so-called
- * sporadic time-constrained task. In such model a task is specified by:
+ * This variant (sched_attr) allows to define additional attributes to
+ * improve the scheduler knowledge about task requirements.
+ *
+ * Scheduling Class Attributes
+ * ===========================
+ *
+ * A subset of sched_attr attributes specifies the
+ * scheduling policy and relative POSIX attributes:
+ *
+ * @size size of the structure, for fwd/bwd compat.
+ *
+ * @sched_policy task's scheduling policy
+ * @sched_nice task's nice value (SCHED_NORMAL/BATCH)
+ * @sched_priority task's static priority (SCHED_FIFO/RR)
+ *
+ * Certain more advanced scheduling features can be controlled by a
+ * predefined set of flags via the attribute:
+ *
+ * @sched_flags for customizing the scheduler behaviour
+ *
+ * Sporadic Time-Constrained Task Attributes
+ * =========================================
+ *
+ * A subset of sched_attr attributes allows to describe a so-called
+ * sporadic time-constrained task.
+ *
+ * In such a model a task is specified by:
* - the activation period or minimum instance inter-arrival time;
* - the maximum (or average, depending on the actual scheduling
* discipline) computation time of all instances, a.k.a. runtime;
@@ -34,14 +60,8 @@ struct sched_param {
* than the runtime and must be completed by time instant t equal to
* the instance activation time + the deadline.
*
- * This is reflected by the actual fields of the sched_attr structure:
+ * This is reflected by the following fields of the sched_attr structure:
*
- * @size size of the structure, for fwd/bwd compat.
- *
- * @sched_policy task's scheduling policy
- * @sched_flags for customizing the scheduler behaviour
- * @sched_nice task's nice value (SCHED_NORMAL/BATCH)
- * @sched_priority task's static priority (SCHED_FIFO/RR)
* @sched_deadline representative of the task's deadline
* @sched_runtime representative of the task's runtime
* @sched_period representative of the task's period
@@ -53,6 +73,29 @@ struct sched_param {
* As of now, the SCHED_DEADLINE policy (sched_dl scheduling class) is the
* only user of this new interface. More information about the algorithm
* available in the scheduling class file or in Documentation/.
+ *
+ * Task Utilization Attributes
+ * ===========================
+ *
+ * A subset of sched_attr attributes allows to specify the utilization
+ * expected for a task. These attributes allow to inform the scheduler about
+ * the utilization boundaries within which it should schedule the task. These
+ * boundaries are valuable hints to support scheduler decisions on both task
+ * placement and frequency selection.
+ *
+ * @sched_util_min represents the minimum utilization
+ * @sched_util_max represents the maximum utilization
+ *
+ * Utilization is a value in the range [0..SCHED_CAPACITY_SCALE]. It
+ * represents the percentage of CPU time used by a task when running at the
+ * maximum frequency on the highest capacity CPU of the system. For example, a
+ * 20% utilization task is a task running for 2ms every 10ms at maximum
+ * frequency.
+ *
+ * A task with a min utilization value bigger than 0 is more likely scheduled
+ * on a CPU with a capacity big enough to fit the specified value.
+ * A task with a max utilization value smaller than 1024 is more likely
+ * scheduled on a CPU with no more capacity than the specified value.
*/
struct sched_attr {
__u32 size;
@@ -70,6 +113,11 @@ struct sched_attr {
__u64 sched_runtime;
__u64 sched_deadline;
__u64 sched_period;
+
+ /* Utilization hints */
+ __u32 sched_util_min;
+ __u32 sched_util_max;
+
};
#endif /* _UAPI_LINUX_SCHED_TYPES_H */
diff --git a/include/uapi/linux/stat.h b/include/uapi/linux/stat.h
index 7b35e98..ad80a5c 100644
--- a/include/uapi/linux/stat.h
+++ b/include/uapi/linux/stat.h
@@ -167,8 +167,8 @@ struct statx {
#define STATX_ATTR_APPEND 0x00000020 /* [I] File is append-only */
#define STATX_ATTR_NODUMP 0x00000040 /* [I] File is not to be dumped */
#define STATX_ATTR_ENCRYPTED 0x00000800 /* [I] File requires key to decrypt in fs */
-
#define STATX_ATTR_AUTOMOUNT 0x00001000 /* Dir: Automount trigger */
+#define STATX_ATTR_VERITY 0x00100000 /* [I] Verity protected file */
#endif /* _UAPI_LINUX_STAT_H */
diff --git a/include/uapi/linux/taskstats.h b/include/uapi/linux/taskstats.h
index b7aa7bb..5e8ca16 100644
--- a/include/uapi/linux/taskstats.h
+++ b/include/uapi/linux/taskstats.h
@@ -34,7 +34,7 @@
*/
-#define TASKSTATS_VERSION 8
+#define TASKSTATS_VERSION 9
#define TS_COMM_LEN 32 /* should be >= TASK_COMM_LEN
* in linux/sched.h */
@@ -164,6 +164,10 @@ struct taskstats {
/* Delay waiting for memory reclaim */
__u64 freepages_count;
__u64 freepages_delay_total;
+
+ /* Delay waiting for thrashing page */
+ __u64 thrashing_count;
+ __u64 thrashing_delay_total;
};
diff --git a/include/uapi/linux/usb/ch9.h b/include/uapi/linux/usb/ch9.h
index 3f37668..9fa1a51 100644
--- a/include/uapi/linux/usb/ch9.h
+++ b/include/uapi/linux/usb/ch9.h
@@ -1084,6 +1084,26 @@ struct usb_ptm_cap_descriptor {
*/
#define USB_DT_USB_SSP_CAP_SIZE(ssac) (12 + (ssac + 1) * 4)
+/*
+ * Configuration Summary descriptors: Defines a list of device preferred
+ * configurations. This descriptor may be used by Host software to decide
+ * which Configuration to use to obtain the desired functionality.
+ */
+#define USB_CAP_TYPE_CONFIG_SUMMARY 0x10
+#define USB_CONFIG_SUMMARY_DESC_REV 0x100
+
+struct usb_config_summary_descriptor {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDevCapabilityType;
+ __u16 bcdVersion;
+ __u8 bClass;
+ __u8 bSubClass;
+ __u8 bProtocol;
+ __u8 bConfigurationCount;
+ __u8 bConfigurationIndex[];
+} __attribute__((packed));
+
/*-------------------------------------------------------------------------*/
/* USB_DT_WIRELESS_ENDPOINT_COMP: companion descriptor associated with
diff --git a/include/uapi/linux/usb/f_accessory.h b/include/uapi/linux/usb/f_accessory.h
new file mode 100644
index 0000000..0baeb7d
--- /dev/null
+++ b/include/uapi/linux/usb/f_accessory.h
@@ -0,0 +1,146 @@
+/*
+ * Gadget Function Driver for Android USB accessories
+ *
+ * Copyright (C) 2011 Google, Inc.
+ * Author: Mike Lockwood <lockwood@android.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _UAPI_LINUX_USB_F_ACCESSORY_H
+#define _UAPI_LINUX_USB_F_ACCESSORY_H
+
+/* Use Google Vendor ID when in accessory mode */
+#define USB_ACCESSORY_VENDOR_ID 0x18D1
+
+
+/* Product ID to use when in accessory mode */
+#define USB_ACCESSORY_PRODUCT_ID 0x2D00
+
+/* Product ID to use when in accessory mode and adb is enabled */
+#define USB_ACCESSORY_ADB_PRODUCT_ID 0x2D01
+
+/* Indexes for strings sent by the host via ACCESSORY_SEND_STRING */
+#define ACCESSORY_STRING_MANUFACTURER 0
+#define ACCESSORY_STRING_MODEL 1
+#define ACCESSORY_STRING_DESCRIPTION 2
+#define ACCESSORY_STRING_VERSION 3
+#define ACCESSORY_STRING_URI 4
+#define ACCESSORY_STRING_SERIAL 5
+
+/* Control request for retrieving device's protocol version
+ *
+ * requestType: USB_DIR_IN | USB_TYPE_VENDOR
+ * request: ACCESSORY_GET_PROTOCOL
+ * value: 0
+ * index: 0
+ * data version number (16 bits little endian)
+ * 1 for original accessory support
+ * 2 adds HID and device to host audio support
+ */
+#define ACCESSORY_GET_PROTOCOL 51
+
+/* Control request for host to send a string to the device
+ *
+ * requestType: USB_DIR_OUT | USB_TYPE_VENDOR
+ * request: ACCESSORY_SEND_STRING
+ * value: 0
+ * index: string ID
+ * data zero terminated UTF8 string
+ *
+ * The device can later retrieve these strings via the
+ * ACCESSORY_GET_STRING_* ioctls
+ */
+#define ACCESSORY_SEND_STRING 52
+
+/* Control request for starting device in accessory mode.
+ * The host sends this after setting all its strings to the device.
+ *
+ * requestType: USB_DIR_OUT | USB_TYPE_VENDOR
+ * request: ACCESSORY_START
+ * value: 0
+ * index: 0
+ * data none
+ */
+#define ACCESSORY_START 53
+
+/* Control request for registering a HID device.
+ * Upon registering, a unique ID is sent by the accessory in the
+ * value parameter. This ID will be used for future commands for
+ * the device
+ *
+ * requestType: USB_DIR_OUT | USB_TYPE_VENDOR
+ * request: ACCESSORY_REGISTER_HID_DEVICE
+ * value: Accessory assigned ID for the HID device
+ * index: total length of the HID report descriptor
+ * data none
+ */
+#define ACCESSORY_REGISTER_HID 54
+
+/* Control request for unregistering a HID device.
+ *
+ * requestType: USB_DIR_OUT | USB_TYPE_VENDOR
+ * request: ACCESSORY_REGISTER_HID
+ * value: Accessory assigned ID for the HID device
+ * index: 0
+ * data none
+ */
+#define ACCESSORY_UNREGISTER_HID 55
+
+/* Control request for sending the HID report descriptor.
+ * If the HID descriptor is longer than the endpoint zero max packet size,
+ * the descriptor will be sent in multiple ACCESSORY_SET_HID_REPORT_DESC
+ * commands. The data for the descriptor must be sent sequentially
+ * if multiple packets are needed.
+ *
+ * requestType: USB_DIR_OUT | USB_TYPE_VENDOR
+ * request: ACCESSORY_SET_HID_REPORT_DESC
+ * value: Accessory assigned ID for the HID device
+ * index: offset of data in descriptor
+ * (needed when HID descriptor is too big for one packet)
+ * data the HID report descriptor
+ */
+#define ACCESSORY_SET_HID_REPORT_DESC 56
+
+/* Control request for sending HID events.
+ *
+ * requestType: USB_DIR_OUT | USB_TYPE_VENDOR
+ * request: ACCESSORY_SEND_HID_EVENT
+ * value: Accessory assigned ID for the HID device
+ * index: 0
+ * data the HID report for the event
+ */
+#define ACCESSORY_SEND_HID_EVENT 57
+
+/* Control request for setting the audio mode.
+ *
+ * requestType: USB_DIR_OUT | USB_TYPE_VENDOR
+ * request: ACCESSORY_SET_AUDIO_MODE
+ * value: 0 - no audio
+ * 1 - device to host, 44100 16-bit stereo PCM
+ * index: 0
+ * data none
+ */
+#define ACCESSORY_SET_AUDIO_MODE 58
+
+/* ioctls for retrieving strings set by the host */
+#define ACCESSORY_GET_STRING_MANUFACTURER _IOW('M', 1, char[256])
+#define ACCESSORY_GET_STRING_MODEL _IOW('M', 2, char[256])
+#define ACCESSORY_GET_STRING_DESCRIPTION _IOW('M', 3, char[256])
+#define ACCESSORY_GET_STRING_VERSION _IOW('M', 4, char[256])
+#define ACCESSORY_GET_STRING_URI _IOW('M', 5, char[256])
+#define ACCESSORY_GET_STRING_SERIAL _IOW('M', 6, char[256])
+/* returns 1 if there is a start request pending */
+#define ACCESSORY_IS_START_REQUESTED _IO('M', 7)
+/* returns audio mode (set via the ACCESSORY_SET_AUDIO_MODE control request) */
+#define ACCESSORY_GET_AUDIO_MODE _IO('M', 8)
+
+#endif /* _UAPI_LINUX_USB_F_ACCESSORY_H */
diff --git a/include/uapi/linux/usb/raw_gadget.h b/include/uapi/linux/usb/raw_gadget.h
new file mode 100644
index 0000000..0be6852
--- /dev/null
+++ b/include/uapi/linux/usb/raw_gadget.h
@@ -0,0 +1,249 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ * USB Raw Gadget driver.
+ *
+ * See Documentation/usb/raw-gadget.rst for more details.
+ */
+
+#ifndef _UAPI__LINUX_USB_RAW_GADGET_H
+#define _UAPI__LINUX_USB_RAW_GADGET_H
+
+#include <asm/ioctl.h>
+#include <linux/types.h>
+#include <linux/usb/ch9.h>
+
+/* Maximum length of driver_name/device_name in the usb_raw_init struct. */
+#define UDC_NAME_LENGTH_MAX 128
+
+/*
+ * struct usb_raw_init - argument for USB_RAW_IOCTL_INIT ioctl.
+ * @speed: The speed of the emulated USB device, takes the same values as
+ * the usb_device_speed enum: USB_SPEED_FULL, USB_SPEED_HIGH, etc.
+ * @driver_name: The name of the UDC driver.
+ * @device_name: The name of a UDC instance.
+ *
+ * The last two fields identify a UDC the gadget driver should bind to.
+ * For example, Dummy UDC has "dummy_udc" as its driver_name and "dummy_udc.N"
+ * as its device_name, where N in the index of the Dummy UDC instance.
+ * At the same time the dwc2 driver that is used on Raspberry Pi Zero, has
+ * "20980000.usb" as both driver_name and device_name.
+ */
+struct usb_raw_init {
+ __u8 driver_name[UDC_NAME_LENGTH_MAX];
+ __u8 device_name[UDC_NAME_LENGTH_MAX];
+ __u8 speed;
+};
+
+/* The type of event fetched with the USB_RAW_IOCTL_EVENT_FETCH ioctl. */
+enum usb_raw_event_type {
+ USB_RAW_EVENT_INVALID = 0,
+
+ /* This event is queued when the driver has bound to a UDC. */
+ USB_RAW_EVENT_CONNECT = 1,
+
+ /* This event is queued when a new control request arrived to ep0. */
+ USB_RAW_EVENT_CONTROL = 2,
+
+ /* The list might grow in the future. */
+};
+
+/*
+ * struct usb_raw_event - argument for USB_RAW_IOCTL_EVENT_FETCH ioctl.
+ * @type: The type of the fetched event.
+ * @length: Length of the data buffer. Updated by the driver and set to the
+ * actual length of the fetched event data.
+ * @data: A buffer to store the fetched event data.
+ *
+ * Currently the fetched data buffer is empty for USB_RAW_EVENT_CONNECT,
+ * and contains struct usb_ctrlrequest for USB_RAW_EVENT_CONTROL.
+ */
+struct usb_raw_event {
+ __u32 type;
+ __u32 length;
+ __u8 data[0];
+};
+
+#define USB_RAW_IO_FLAGS_ZERO 0x0001
+#define USB_RAW_IO_FLAGS_MASK 0x0001
+
+static inline int usb_raw_io_flags_valid(__u16 flags)
+{
+ return (flags & ~USB_RAW_IO_FLAGS_MASK) == 0;
+}
+
+static inline int usb_raw_io_flags_zero(__u16 flags)
+{
+ return (flags & USB_RAW_IO_FLAGS_ZERO);
+}
+
+/*
+ * struct usb_raw_ep_io - argument for USB_RAW_IOCTL_EP0/EP_WRITE/READ ioctls.
+ * @ep: Endpoint handle as returned by USB_RAW_IOCTL_EP_ENABLE for
+ * USB_RAW_IOCTL_EP_WRITE/READ. Ignored for USB_RAW_IOCTL_EP0_WRITE/READ.
+ * @flags: When USB_RAW_IO_FLAGS_ZERO is specified, the zero flag is set on
+ * the submitted USB request, see include/linux/usb/gadget.h for details.
+ * @length: Length of data.
+ * @data: Data to send for USB_RAW_IOCTL_EP0/EP_WRITE. Buffer to store received
+ * data for USB_RAW_IOCTL_EP0/EP_READ.
+ */
+struct usb_raw_ep_io {
+ __u16 ep;
+ __u16 flags;
+ __u32 length;
+ __u8 data[0];
+};
+
+/* Maximum number of non-control endpoints in struct usb_raw_eps_info. */
+#define USB_RAW_EPS_NUM_MAX 30
+
+/* Maximum length of UDC endpoint name in struct usb_raw_ep_info. */
+#define USB_RAW_EP_NAME_MAX 16
+
+/* Used as addr in struct usb_raw_ep_info if endpoint accepts any address. */
+#define USB_RAW_EP_ADDR_ANY 0xff
+
+/*
+ * struct usb_raw_ep_caps - exposes endpoint capabilities from struct usb_ep
+ * (technically from its member struct usb_ep_caps).
+ */
+struct usb_raw_ep_caps {
+ __u32 type_control : 1;
+ __u32 type_iso : 1;
+ __u32 type_bulk : 1;
+ __u32 type_int : 1;
+ __u32 dir_in : 1;
+ __u32 dir_out : 1;
+};
+
+/*
+ * struct usb_raw_ep_limits - exposes endpoint limits from struct usb_ep.
+ * @maxpacket_limit: Maximum packet size value supported by this endpoint.
+ * @max_streams: maximum number of streams supported by this endpoint
+ * (actual number is 2^n).
+ * @reserved: Empty, reserved for potential future extensions.
+ */
+struct usb_raw_ep_limits {
+ __u16 maxpacket_limit;
+ __u16 max_streams;
+ __u32 reserved;
+};
+
+/*
+ * struct usb_raw_ep_info - stores information about a gadget endpoint.
+ * @name: Name of the endpoint as it is defined in the UDC driver.
+ * @addr: Address of the endpoint that must be specified in the endpoint
+ * descriptor passed to USB_RAW_IOCTL_EP_ENABLE ioctl.
+ * @caps: Endpoint capabilities.
+ * @limits: Endpoint limits.
+ */
+struct usb_raw_ep_info {
+ __u8 name[USB_RAW_EP_NAME_MAX];
+ __u32 addr;
+ struct usb_raw_ep_caps caps;
+ struct usb_raw_ep_limits limits;
+};
+
+/*
+ * struct usb_raw_eps_info - argument for USB_RAW_IOCTL_EPS_INFO ioctl.
+ * eps: Structures that store information about non-control endpoints.
+ */
+struct usb_raw_eps_info {
+ struct usb_raw_ep_info eps[USB_RAW_EPS_NUM_MAX];
+};
+
+/*
+ * Initializes a Raw Gadget instance.
+ * Accepts a pointer to the usb_raw_init struct as an argument.
+ * Returns 0 on success or negative error code on failure.
+ */
+#define USB_RAW_IOCTL_INIT _IOW('U', 0, struct usb_raw_init)
+
+/*
+ * Instructs Raw Gadget to bind to a UDC and start emulating a USB device.
+ * Returns 0 on success or negative error code on failure.
+ */
+#define USB_RAW_IOCTL_RUN _IO('U', 1)
+
+/*
+ * A blocking ioctl that waits for an event and returns fetched event data to
+ * the user.
+ * Accepts a pointer to the usb_raw_event struct.
+ * Returns 0 on success or negative error code on failure.
+ */
+#define USB_RAW_IOCTL_EVENT_FETCH _IOR('U', 2, struct usb_raw_event)
+
+/*
+ * Queues an IN (OUT for READ) request as a response to the last setup request
+ * received on endpoint 0 (provided that was an IN (OUT for READ) request), and
+ * waits until the request is completed. Copies received data to user for READ.
+ * Accepts a pointer to the usb_raw_ep_io struct as an argument.
+ * Returns length of transferred data on success or negative error code on
+ * failure.
+ */
+#define USB_RAW_IOCTL_EP0_WRITE _IOW('U', 3, struct usb_raw_ep_io)
+#define USB_RAW_IOCTL_EP0_READ _IOWR('U', 4, struct usb_raw_ep_io)
+
+/*
+ * Finds an endpoint that satisfies the parameters specified in the provided
+ * descriptors (address, transfer type, etc.) and enables it.
+ * Accepts a pointer to the usb_raw_ep_descs struct as an argument.
+ * Returns enabled endpoint handle on success or negative error code on failure.
+ */
+#define USB_RAW_IOCTL_EP_ENABLE _IOW('U', 5, struct usb_endpoint_descriptor)
+
+/*
+ * Disables specified endpoint.
+ * Accepts endpoint handle as an argument.
+ * Returns 0 on success or negative error code on failure.
+ */
+#define USB_RAW_IOCTL_EP_DISABLE _IOW('U', 6, __u32)
+
+/*
+ * Queues an IN (OUT for READ) request as a response to the last setup request
+ * received on endpoint usb_raw_ep_io.ep (provided that was an IN (OUT for READ)
+ * request), and waits until the request is completed. Copies received data to
+ * user for READ.
+ * Accepts a pointer to the usb_raw_ep_io struct as an argument.
+ * Returns length of transferred data on success or negative error code on
+ * failure.
+ */
+#define USB_RAW_IOCTL_EP_WRITE _IOW('U', 7, struct usb_raw_ep_io)
+#define USB_RAW_IOCTL_EP_READ _IOWR('U', 8, struct usb_raw_ep_io)
+
+/*
+ * Switches the gadget into the configured state.
+ * Returns 0 on success or negative error code on failure.
+ */
+#define USB_RAW_IOCTL_CONFIGURE _IO('U', 9)
+
+/*
+ * Constrains UDC VBUS power usage.
+ * Accepts current limit in 2 mA units as an argument.
+ * Returns 0 on success or negative error code on failure.
+ */
+#define USB_RAW_IOCTL_VBUS_DRAW _IOW('U', 10, __u32)
+
+/*
+ * Fills in the usb_raw_eps_info structure with information about non-control
+ * endpoints available for the currently connected UDC.
+ * Returns the number of available endpoints on success or negative error code
+ * on failure.
+ */
+#define USB_RAW_IOCTL_EPS_INFO _IOR('U', 11, struct usb_raw_eps_info)
+
+/*
+ * Stalls a pending control request on endpoint 0.
+ * Returns 0 on success or negative error code on failure.
+ */
+#define USB_RAW_IOCTL_EP0_STALL _IO('U', 12)
+
+/*
+ * Sets or clears halt or wedge status of the endpoint.
+ * Accepts endpoint handle as an argument.
+ * Returns 0 on success or negative error code on failure.
+ */
+#define USB_RAW_IOCTL_EP_SET_HALT _IOW('U', 13, __u32)
+#define USB_RAW_IOCTL_EP_CLEAR_HALT _IOW('U', 14, __u32)
+#define USB_RAW_IOCTL_EP_SET_WEDGE _IOW('U', 15, __u32)
+
+#endif /* _UAPI__LINUX_USB_RAW_GADGET_H */
diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h
index e4ee10e..27fe29e 100644
--- a/include/uapi/linux/v4l2-controls.h
+++ b/include/uapi/linux/v4l2-controls.h
@@ -438,6 +438,10 @@ enum v4l2_mpeg_video_h264_level {
V4L2_MPEG_VIDEO_H264_LEVEL_4_2 = 13,
V4L2_MPEG_VIDEO_H264_LEVEL_5_0 = 14,
V4L2_MPEG_VIDEO_H264_LEVEL_5_1 = 15,
+ V4L2_MPEG_VIDEO_H264_LEVEL_5_2 = 16,
+ V4L2_MPEG_VIDEO_H264_LEVEL_6_0 = 17,
+ V4L2_MPEG_VIDEO_H264_LEVEL_6_1 = 18,
+ V4L2_MPEG_VIDEO_H264_LEVEL_6_2 = 19,
};
#define V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA (V4L2_CID_MPEG_BASE+360)
#define V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA (V4L2_CID_MPEG_BASE+361)
@@ -466,6 +470,7 @@ enum v4l2_mpeg_video_h264_profile {
V4L2_MPEG_VIDEO_H264_PROFILE_SCALABLE_HIGH_INTRA = 14,
V4L2_MPEG_VIDEO_H264_PROFILE_STEREO_HIGH = 15,
V4L2_MPEG_VIDEO_H264_PROFILE_MULTIVIEW_HIGH = 16,
+ V4L2_MPEG_VIDEO_H264_PROFILE_CONSTRAINED_HIGH = 17,
};
#define V4L2_CID_MPEG_VIDEO_H264_VUI_EXT_SAR_HEIGHT (V4L2_CID_MPEG_BASE+364)
#define V4L2_CID_MPEG_VIDEO_H264_VUI_EXT_SAR_WIDTH (V4L2_CID_MPEG_BASE+365)
@@ -531,6 +536,7 @@ enum v4l2_mpeg_video_h264_hierarchical_coding_type {
};
#define V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING_LAYER (V4L2_CID_MPEG_BASE+381)
#define V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING_LAYER_QP (V4L2_CID_MPEG_BASE+382)
+#define V4L2_CID_MPEG_VIDEO_H264_CHROMA_QP_INDEX_OFFSET (V4L2_CID_MPEG_BASE+384)
#define V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP (V4L2_CID_MPEG_BASE+400)
#define V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP (V4L2_CID_MPEG_BASE+401)
#define V4L2_CID_MPEG_VIDEO_MPEG4_B_FRAME_QP (V4L2_CID_MPEG_BASE+402)
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index b73f442..7537b96 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -70,7 +70,7 @@
* Common stuff for both V4L1 and V4L2
* Moved from videodev.h
*/
-#define VIDEO_MAX_FRAME 32
+#define VIDEO_MAX_FRAME 64
#define VIDEO_MAX_PLANES 8
/*
@@ -563,6 +563,14 @@ struct v4l2_pix_format {
#define V4L2_PIX_FMT_NV24 v4l2_fourcc('N', 'V', '2', '4') /* 24 Y/CbCr 4:4:4 */
#define V4L2_PIX_FMT_NV42 v4l2_fourcc('N', 'V', '4', '2') /* 24 Y/CrCb 4:4:4 */
+/* NV12_512 8-bit Y/CbCr 4:2:0 */
+#define V4L2_PIX_FMT_NV12_512 v4l2_fourcc('Q', '5', '1', '2')
+
+/* UBWC 8-bit Y/CbCr 4:2:0 */
+#define V4L2_PIX_FMT_NV12_UBWC v4l2_fourcc('Q', '1', '2', '8')
+/* UBWC 10-bit Y/CbCr 4:2:0 */
+#define V4L2_PIX_FMT_NV12_TP10_UBWC v4l2_fourcc('Q', '1', '2', 'A')
+
/* two non contiguous planes - one Y, one Cr + Cb interleaved */
#define V4L2_PIX_FMT_NV12M v4l2_fourcc('N', 'M', '1', '2') /* 12 Y/CbCr 4:2:0 */
#define V4L2_PIX_FMT_NV21M v4l2_fourcc('N', 'M', '2', '1') /* 21 Y/CrCb 4:2:0 */
@@ -692,6 +700,8 @@ struct v4l2_pix_format {
#define V4L2_PIX_FMT_IPU3_SGBRG10 v4l2_fourcc('i', 'p', '3', 'g') /* IPU3 packed 10-bit GBRG bayer */
#define V4L2_PIX_FMT_IPU3_SGRBG10 v4l2_fourcc('i', 'p', '3', 'G') /* IPU3 packed 10-bit GRBG bayer */
#define V4L2_PIX_FMT_IPU3_SRGGB10 v4l2_fourcc('i', 'p', '3', 'r') /* IPU3 packed 10-bit RGGB bayer */
+#define V4L2_PIX_FMT_SDE_Y_CBCR_H2V2_P010_VENUS \
+ v4l2_fourcc('Q', 'P', '1', '0') /* Y/CbCr 4:2:0 P10 Venus*/
/* SDR formats - used only for Software Defined Radio devices */
#define V4L2_SDR_FMT_CU8 v4l2_fourcc('C', 'U', '0', '8') /* IQ u8 */
diff --git a/include/uapi/linux/virtio_gpu.h b/include/uapi/linux/virtio_gpu.h
index f43c3c6..0c85914 100644
--- a/include/uapi/linux/virtio_gpu.h
+++ b/include/uapi/linux/virtio_gpu.h
@@ -40,7 +40,16 @@
#include <linux/types.h>
-#define VIRTIO_GPU_F_VIRGL 0
+/*
+ * VIRTIO_GPU_CMD_CTX_*
+ * VIRTIO_GPU_CMD_*_3D
+ */
+#define VIRTIO_GPU_F_VIRGL 0
+
+/*
+ * VIRTIO_GPU_CMD_GET_EDID
+ */
+#define VIRTIO_GPU_F_EDID 1
enum virtio_gpu_ctrl_type {
VIRTIO_GPU_UNDEFINED = 0,
@@ -56,6 +65,7 @@ enum virtio_gpu_ctrl_type {
VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING,
VIRTIO_GPU_CMD_GET_CAPSET_INFO,
VIRTIO_GPU_CMD_GET_CAPSET,
+ VIRTIO_GPU_CMD_GET_EDID,
/* 3d commands */
VIRTIO_GPU_CMD_CTX_CREATE = 0x0200,
@@ -76,6 +86,7 @@ enum virtio_gpu_ctrl_type {
VIRTIO_GPU_RESP_OK_DISPLAY_INFO,
VIRTIO_GPU_RESP_OK_CAPSET_INFO,
VIRTIO_GPU_RESP_OK_CAPSET,
+ VIRTIO_GPU_RESP_OK_EDID,
/* error responses */
VIRTIO_GPU_RESP_ERR_UNSPEC = 0x1200,
@@ -291,6 +302,21 @@ struct virtio_gpu_resp_capset {
__u8 capset_data[];
};
+/* VIRTIO_GPU_CMD_GET_EDID */
+struct virtio_gpu_cmd_get_edid {
+ struct virtio_gpu_ctrl_hdr hdr;
+ __le32 scanout;
+ __le32 padding;
+};
+
+/* VIRTIO_GPU_RESP_OK_EDID */
+struct virtio_gpu_resp_edid {
+ struct virtio_gpu_ctrl_hdr hdr;
+ __le32 size;
+ __le32 padding;
+ __u8 edid[1024];
+};
+
#define VIRTIO_GPU_EVENT_DISPLAY (1 << 0)
struct virtio_gpu_config {
diff --git a/include/uapi/linux/virtio_ids.h b/include/uapi/linux/virtio_ids.h
index 6d5c3b2..32b2f94 100644
--- a/include/uapi/linux/virtio_ids.h
+++ b/include/uapi/linux/virtio_ids.h
@@ -43,5 +43,6 @@
#define VIRTIO_ID_INPUT 18 /* virtio input */
#define VIRTIO_ID_VSOCK 19 /* virtio vsock transport */
#define VIRTIO_ID_CRYPTO 20 /* virtio crypto */
+#define VIRTIO_ID_PMEM 27 /* virtio pmem */
#endif /* _LINUX_VIRTIO_IDS_H */
diff --git a/include/uapi/linux/virtio_pmem.h b/include/uapi/linux/virtio_pmem.h
new file mode 100644
index 0000000..efcd72f
--- /dev/null
+++ b/include/uapi/linux/virtio_pmem.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
+/*
+ * Definitions for virtio-pmem devices.
+ *
+ * Copyright (C) 2019 Red Hat, Inc.
+ *
+ * Author(s): Pankaj Gupta <pagupta@redhat.com>
+ */
+
+#ifndef _UAPI_LINUX_VIRTIO_PMEM_H
+#define _UAPI_LINUX_VIRTIO_PMEM_H
+
+#include <linux/types.h>
+#include <linux/virtio_ids.h>
+#include <linux/virtio_config.h>
+
+struct virtio_pmem_config {
+ __u64 start;
+ __u64 size;
+};
+
+#define VIRTIO_PMEM_REQ_TYPE_FLUSH 0
+
+struct virtio_pmem_resp {
+ /* Host return status corresponding to flush request */
+ __u32 ret;
+};
+
+struct virtio_pmem_req {
+ /* command type */
+ __u32 type;
+};
+
+#endif
diff --git a/include/uapi/linux/wireguard.h b/include/uapi/linux/wireguard.h
new file mode 100644
index 0000000..ae88be1
--- /dev/null
+++ b/include/uapi/linux/wireguard.h
@@ -0,0 +1,196 @@
+/* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) OR MIT */
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ *
+ * Documentation
+ * =============
+ *
+ * The below enums and macros are for interfacing with WireGuard, using generic
+ * netlink, with family WG_GENL_NAME and version WG_GENL_VERSION. It defines two
+ * methods: get and set. Note that while they share many common attributes,
+ * these two functions actually accept a slightly different set of inputs and
+ * outputs.
+ *
+ * WG_CMD_GET_DEVICE
+ * -----------------
+ *
+ * May only be called via NLM_F_REQUEST | NLM_F_DUMP. The command should contain
+ * one but not both of:
+ *
+ * WGDEVICE_A_IFINDEX: NLA_U32
+ * WGDEVICE_A_IFNAME: NLA_NUL_STRING, maxlen IFNAMSIZ - 1
+ *
+ * The kernel will then return several messages (NLM_F_MULTI) containing the
+ * following tree of nested items:
+ *
+ * WGDEVICE_A_IFINDEX: NLA_U32
+ * WGDEVICE_A_IFNAME: NLA_NUL_STRING, maxlen IFNAMSIZ - 1
+ * WGDEVICE_A_PRIVATE_KEY: NLA_EXACT_LEN, len WG_KEY_LEN
+ * WGDEVICE_A_PUBLIC_KEY: NLA_EXACT_LEN, len WG_KEY_LEN
+ * WGDEVICE_A_LISTEN_PORT: NLA_U16
+ * WGDEVICE_A_FWMARK: NLA_U32
+ * WGDEVICE_A_PEERS: NLA_NESTED
+ * 0: NLA_NESTED
+ * WGPEER_A_PUBLIC_KEY: NLA_EXACT_LEN, len WG_KEY_LEN
+ * WGPEER_A_PRESHARED_KEY: NLA_EXACT_LEN, len WG_KEY_LEN
+ * WGPEER_A_ENDPOINT: NLA_MIN_LEN(struct sockaddr), struct sockaddr_in or struct sockaddr_in6
+ * WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL: NLA_U16
+ * WGPEER_A_LAST_HANDSHAKE_TIME: NLA_EXACT_LEN, struct __kernel_timespec
+ * WGPEER_A_RX_BYTES: NLA_U64
+ * WGPEER_A_TX_BYTES: NLA_U64
+ * WGPEER_A_ALLOWEDIPS: NLA_NESTED
+ * 0: NLA_NESTED
+ * WGALLOWEDIP_A_FAMILY: NLA_U16
+ * WGALLOWEDIP_A_IPADDR: NLA_MIN_LEN(struct in_addr), struct in_addr or struct in6_addr
+ * WGALLOWEDIP_A_CIDR_MASK: NLA_U8
+ * 0: NLA_NESTED
+ * ...
+ * 0: NLA_NESTED
+ * ...
+ * ...
+ * WGPEER_A_PROTOCOL_VERSION: NLA_U32
+ * 0: NLA_NESTED
+ * ...
+ * ...
+ *
+ * It is possible that all of the allowed IPs of a single peer will not
+ * fit within a single netlink message. In that case, the same peer will
+ * be written in the following message, except it will only contain
+ * WGPEER_A_PUBLIC_KEY and WGPEER_A_ALLOWEDIPS. This may occur several
+ * times in a row for the same peer. It is then up to the receiver to
+ * coalesce adjacent peers. Likewise, it is possible that all peers will
+ * not fit within a single message. So, subsequent peers will be sent
+ * in following messages, except those will only contain WGDEVICE_A_IFNAME
+ * and WGDEVICE_A_PEERS. It is then up to the receiver to coalesce these
+ * messages to form the complete list of peers.
+ *
+ * Since this is an NLA_F_DUMP command, the final message will always be
+ * NLMSG_DONE, even if an error occurs. However, this NLMSG_DONE message
+ * contains an integer error code. It is either zero or a negative error
+ * code corresponding to the errno.
+ *
+ * WG_CMD_SET_DEVICE
+ * -----------------
+ *
+ * May only be called via NLM_F_REQUEST. The command should contain the
+ * following tree of nested items, containing one but not both of
+ * WGDEVICE_A_IFINDEX and WGDEVICE_A_IFNAME:
+ *
+ * WGDEVICE_A_IFINDEX: NLA_U32
+ * WGDEVICE_A_IFNAME: NLA_NUL_STRING, maxlen IFNAMSIZ - 1
+ * WGDEVICE_A_FLAGS: NLA_U32, 0 or WGDEVICE_F_REPLACE_PEERS if all current
+ * peers should be removed prior to adding the list below.
+ * WGDEVICE_A_PRIVATE_KEY: len WG_KEY_LEN, all zeros to remove
+ * WGDEVICE_A_LISTEN_PORT: NLA_U16, 0 to choose randomly
+ * WGDEVICE_A_FWMARK: NLA_U32, 0 to disable
+ * WGDEVICE_A_PEERS: NLA_NESTED
+ * 0: NLA_NESTED
+ * WGPEER_A_PUBLIC_KEY: len WG_KEY_LEN
+ * WGPEER_A_FLAGS: NLA_U32, 0 and/or WGPEER_F_REMOVE_ME if the
+ * specified peer should not exist at the end of the
+ * operation, rather than added/updated and/or
+ * WGPEER_F_REPLACE_ALLOWEDIPS if all current allowed
+ * IPs of this peer should be removed prior to adding
+ * the list below and/or WGPEER_F_UPDATE_ONLY if the
+ * peer should only be set if it already exists.
+ * WGPEER_A_PRESHARED_KEY: len WG_KEY_LEN, all zeros to remove
+ * WGPEER_A_ENDPOINT: struct sockaddr_in or struct sockaddr_in6
+ * WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL: NLA_U16, 0 to disable
+ * WGPEER_A_ALLOWEDIPS: NLA_NESTED
+ * 0: NLA_NESTED
+ * WGALLOWEDIP_A_FAMILY: NLA_U16
+ * WGALLOWEDIP_A_IPADDR: struct in_addr or struct in6_addr
+ * WGALLOWEDIP_A_CIDR_MASK: NLA_U8
+ * 0: NLA_NESTED
+ * ...
+ * 0: NLA_NESTED
+ * ...
+ * ...
+ * WGPEER_A_PROTOCOL_VERSION: NLA_U32, should not be set or used at
+ * all by most users of this API, as the
+ * most recent protocol will be used when
+ * this is unset. Otherwise, must be set
+ * to 1.
+ * 0: NLA_NESTED
+ * ...
+ * ...
+ *
+ * It is possible that the amount of configuration data exceeds that of
+ * the maximum message length accepted by the kernel. In that case, several
+ * messages should be sent one after another, with each successive one
+ * filling in information not contained in the prior. Note that if
+ * WGDEVICE_F_REPLACE_PEERS is specified in the first message, it probably
+ * should not be specified in fragments that come after, so that the list
+ * of peers is only cleared the first time but appended after. Likewise for
+ * peers, if WGPEER_F_REPLACE_ALLOWEDIPS is specified in the first message
+ * of a peer, it likely should not be specified in subsequent fragments.
+ *
+ * If an error occurs, NLMSG_ERROR will reply containing an errno.
+ */
+
+#ifndef _WG_UAPI_WIREGUARD_H
+#define _WG_UAPI_WIREGUARD_H
+
+#define WG_GENL_NAME "wireguard"
+#define WG_GENL_VERSION 1
+
+#define WG_KEY_LEN 32
+
+enum wg_cmd {
+ WG_CMD_GET_DEVICE,
+ WG_CMD_SET_DEVICE,
+ __WG_CMD_MAX
+};
+#define WG_CMD_MAX (__WG_CMD_MAX - 1)
+
+enum wgdevice_flag {
+ WGDEVICE_F_REPLACE_PEERS = 1U << 0,
+ __WGDEVICE_F_ALL = WGDEVICE_F_REPLACE_PEERS
+};
+enum wgdevice_attribute {
+ WGDEVICE_A_UNSPEC,
+ WGDEVICE_A_IFINDEX,
+ WGDEVICE_A_IFNAME,
+ WGDEVICE_A_PRIVATE_KEY,
+ WGDEVICE_A_PUBLIC_KEY,
+ WGDEVICE_A_FLAGS,
+ WGDEVICE_A_LISTEN_PORT,
+ WGDEVICE_A_FWMARK,
+ WGDEVICE_A_PEERS,
+ __WGDEVICE_A_LAST
+};
+#define WGDEVICE_A_MAX (__WGDEVICE_A_LAST - 1)
+
+enum wgpeer_flag {
+ WGPEER_F_REMOVE_ME = 1U << 0,
+ WGPEER_F_REPLACE_ALLOWEDIPS = 1U << 1,
+ WGPEER_F_UPDATE_ONLY = 1U << 2,
+ __WGPEER_F_ALL = WGPEER_F_REMOVE_ME | WGPEER_F_REPLACE_ALLOWEDIPS |
+ WGPEER_F_UPDATE_ONLY
+};
+enum wgpeer_attribute {
+ WGPEER_A_UNSPEC,
+ WGPEER_A_PUBLIC_KEY,
+ WGPEER_A_PRESHARED_KEY,
+ WGPEER_A_FLAGS,
+ WGPEER_A_ENDPOINT,
+ WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
+ WGPEER_A_LAST_HANDSHAKE_TIME,
+ WGPEER_A_RX_BYTES,
+ WGPEER_A_TX_BYTES,
+ WGPEER_A_ALLOWEDIPS,
+ WGPEER_A_PROTOCOL_VERSION,
+ __WGPEER_A_LAST
+};
+#define WGPEER_A_MAX (__WGPEER_A_LAST - 1)
+
+enum wgallowedip_attribute {
+ WGALLOWEDIP_A_UNSPEC,
+ WGALLOWEDIP_A_FAMILY,
+ WGALLOWEDIP_A_IPADDR,
+ WGALLOWEDIP_A_CIDR_MASK,
+ __WGALLOWEDIP_A_LAST
+};
+#define WGALLOWEDIP_A_MAX (__WGALLOWEDIP_A_LAST - 1)
+
+#endif /* _WG_UAPI_WIREGUARD_H */
diff --git a/include/uapi/sound/compress_offload.h b/include/uapi/sound/compress_offload.h
index 56d9567..eac1e01 100644
--- a/include/uapi/sound/compress_offload.h
+++ b/include/uapi/sound/compress_offload.h
@@ -67,7 +67,7 @@ struct snd_compr_params {
*/
struct snd_compr_tstamp {
__u32 byte_offset;
- __u32 copied_total;
+ __u64 copied_total;
__u32 pcm_frames;
__u32 pcm_io_frames;
__u32 sampling_rate;
@@ -123,6 +123,18 @@ struct snd_compr_codec_caps {
} __attribute__((packed, aligned(4)));
/**
+ * struct snd_compr_audio_info: compressed input audio information
+ * @frame_size: legth of the encoded frame with valid data
+ * @reserved: reserved for furture use
+ */
+struct snd_compr_audio_info {
+ __u32 frame_size;
+ __u32 reserved[15];
+} __attribute__((packed, aligned(4)));
+
+#define SND_COMPR_AUDIO_INFO
+
+/**
* enum sndrv_compress_encoder
* @SNDRV_COMPRESS_ENCODER_PADDING: no of samples appended by the encoder at the
* end of the track
@@ -160,6 +172,8 @@ struct snd_compr_metadata {
* SNDRV_COMPRESS_STOP: stop a running stream, discarding ring buffer content
* and the buffers currently with DSP
* SNDRV_COMPRESS_DRAIN: Play till end of buffers and stop after that
+ * SNDRV_COMPRESS_SET_NEXT_TRACK_PARAM: send codec specific data for the next
+ * track in gapless
* SNDRV_COMPRESS_IOCTL_VERSION: Query the API version
*/
#define SNDRV_COMPRESS_IOCTL_VERSION _IOR('C', 0x00, int)
@@ -181,6 +195,8 @@ struct snd_compr_metadata {
#define SNDRV_COMPRESS_DRAIN _IO('C', 0x34)
#define SNDRV_COMPRESS_NEXT_TRACK _IO('C', 0x35)
#define SNDRV_COMPRESS_PARTIAL_DRAIN _IO('C', 0x36)
+#define SNDRV_COMPRESS_SET_NEXT_TRACK_PARAM\
+ _IOW('C', 0x80, union snd_codec_options)
/*
* TODO
* 1. add mmap support
diff --git a/include/uapi/sound/compress_params.h b/include/uapi/sound/compress_params.h
index 3d4d6de..7e503c9 100644
--- a/include/uapi/sound/compress_params.h
+++ b/include/uapi/sound/compress_params.h
@@ -54,12 +54,34 @@
#include <linux/types.h>
+/* Maximum PCM channels */
+#define MAX_PCM_DECODE_CHANNELS 32
+
/* AUDIO CODECS SUPPORTED */
#define MAX_NUM_CODECS 32
#define MAX_NUM_CODEC_DESCRIPTORS 32
#define MAX_NUM_BITRATES 32
#define MAX_NUM_SAMPLE_RATES 32
+/* compressed TX */
+#define MAX_NUM_FRAMES_PER_BUFFER 1
+#define COMPRESSED_META_DATA_MODE 0x10
+#define META_DATA_LEN_BYTES 36
+#define Q6_AC3_DECODER 0x00010BF6
+#define Q6_EAC3_DECODER 0x00010C3C
+#define Q6_DTS 0x00010D88
+#define Q6_DTS_LBR 0x00010DBB
+
+/* Timestamp flsg */
+/* Bit-0 - 1 : Enable Timestamp mode */
+/* Bit-0 - 0 : Disable Timestamp mode */
+#define COMPRESSED_TIMESTAMP_FLAG 0x0001
+
+/* Perf mode flag */
+/* Bit-1 - 1 : Enable perf mode */
+/* Bit-1 - 0 : Disable perf mode */
+#define COMPRESSED_PERF_MODE_FLAG 0x0002
+
/* Codecs are listed linearly to allow for extensibility */
#define SND_AUDIOCODEC_PCM ((__u32) 0x00000001)
#define SND_AUDIOCODEC_MP3 ((__u32) 0x00000002)
@@ -75,7 +97,25 @@
#define SND_AUDIOCODEC_G723_1 ((__u32) 0x0000000C)
#define SND_AUDIOCODEC_G729 ((__u32) 0x0000000D)
#define SND_AUDIOCODEC_BESPOKE ((__u32) 0x0000000E)
-#define SND_AUDIOCODEC_MAX SND_AUDIOCODEC_BESPOKE
+#define SND_AUDIOCODEC_DTS_PASS_THROUGH ((__u32) 0x0000000F)
+#define SND_AUDIOCODEC_DTS_LBR ((__u32) 0x00000010)
+#define SND_AUDIOCODEC_DTS_TRANSCODE_LOOPBACK ((__u32) 0x00000011)
+#define SND_AUDIOCODEC_PASS_THROUGH ((__u32) 0x00000012)
+#define SND_AUDIOCODEC_MP2 ((__u32) 0x00000013)
+#define SND_AUDIOCODEC_DTS_LBR_PASS_THROUGH ((__u32) 0x00000014)
+#define SND_AUDIOCODEC_AC3 ((__u32) 0x00000015)
+#define SND_AUDIOCODEC_AC3_PASS_THROUGH ((__u32) 0x00000016)
+#define SND_AUDIOCODEC_WMA_PRO ((__u32) 0x00000017)
+#define SND_AUDIOCODEC_DTS ((__u32) 0x00000018)
+#define SND_AUDIOCODEC_EAC3 ((__u32) 0x00000019)
+#define SND_AUDIOCODEC_ALAC ((__u32) 0x00000020)
+#define SND_AUDIOCODEC_APE ((__u32) 0x00000021)
+#define SND_AUDIOCODEC_DSD ((__u32) 0x00000022)
+#define SND_AUDIOCODEC_APTX ((__u32) 0x00000023)
+#define SND_AUDIOCODEC_TRUEHD ((__u32) 0x00000024)
+#define SND_AUDIOCODEC_MAT ((__u32) 0x00000025)
+#define SND_AUDIOCODEC_THD ((__u32) 0x00000026)
+#define SND_AUDIOCODEC_MAX SND_AUDIOCODEC_THD
/*
* Profile and modes are listed with bit masks. This allows for a
@@ -241,8 +281,15 @@
struct snd_enc_wma {
__u32 super_block_align; /* WMA Type-specific data */
+ __u32 bits_per_sample;
+ __u32 channelmask;
+ __u32 encodeopt;
+ __u32 encodeopt1;
+ __u32 encodeopt2;
+ __u32 avg_bit_rate;
};
+#define SND_ENC_WMA_EXTENTED_SUPPORT
/**
* struct snd_enc_vorbis
@@ -317,13 +364,96 @@ struct snd_enc_generic {
__s32 reserved[15]; /* Can be used for SND_AUDIOCODEC_BESPOKE */
} __attribute__((packed, aligned(4)));
+#define SND_DEC_THD_MAX_PARAMS 8
+struct snd_dec_thd {
+ __u32 params_length;
+ __u32 params_id[SND_DEC_THD_MAX_PARAMS];
+ __u32 params_value[SND_DEC_THD_MAX_PARAMS];
+} __attribute__((packed, aligned(4)));
+
+struct snd_dec_flac {
+ __u16 sample_size;
+ __u16 min_blk_size;
+ __u16 max_blk_size;
+ __u16 min_frame_size;
+ __u16 max_frame_size;
+} __attribute__((packed, aligned(4)));
+
+#define SND_DEC_FLAC_SUPPORTED
+
+struct snd_dec_vorbis {
+ __u32 bit_stream_fmt;
+};
+
+struct snd_dec_alac {
+ __u32 frame_length;
+ __u8 compatible_version;
+ __u8 bit_depth;
+ __u8 pb;
+ __u8 mb;
+ __u8 kb;
+ __u8 num_channels;
+ __u16 max_run;
+ __u32 max_frame_bytes;
+ __u32 avg_bit_rate;
+ __u32 sample_rate;
+ __u32 channel_layout_tag;
+};
+
+struct snd_dec_ape {
+ __u16 compatible_version;
+ __u16 compression_level;
+ __u32 format_flags;
+ __u32 blocks_per_frame;
+ __u32 final_frame_blocks;
+ __u32 total_frames;
+ __u16 bits_per_sample;
+ __u16 num_channels;
+ __u32 sample_rate;
+ __u32 seek_table_present;
+};
+
+struct snd_dec_aptx {
+ __u32 lap;
+ __u32 uap;
+ __u32 nap;
+};
+
+/** struct snd_dec_dsd - codec for DSD format
+ * @blk_size - dsd channel block size
+ */
+struct snd_dec_dsd {
+ __u32 blk_size;
+};
+
+/** struct snd_dec_pcm - codec options for PCM format
+ * @num_channels: Number of channels
+ * @ch_map: Channel map for the above corresponding channels
+ */
+struct snd_dec_pcm {
+ __u32 num_channels;
+ __u8 ch_map[MAX_PCM_DECODE_CHANNELS];
+} __attribute__((packed, aligned(4)));
+
+struct snd_dec_amrwb_plus {
+ __u32 bit_stream_fmt;
+};
union snd_codec_options {
struct snd_enc_wma wma;
struct snd_enc_vorbis vorbis;
struct snd_enc_real real;
struct snd_enc_flac flac;
struct snd_enc_generic generic;
-} __attribute__((packed, aligned(4)));
+ struct snd_dec_flac flac_dec;
+ struct snd_dec_vorbis vorbis_dec;
+ struct snd_dec_alac alac;
+ struct snd_dec_ape ape;
+ struct snd_dec_aptx aptx_dec;
+ struct snd_dec_thd truehd;
+ struct snd_dec_pcm pcm_dec;
+ struct snd_dec_amrwb_plus amrwbplus;
+ struct snd_dec_dsd dsd_dec;
+};
/** struct snd_codec_desc - description of codec capabilities
* @max_ch: Maximum number of audio channels
@@ -384,6 +514,7 @@ struct snd_codec_desc {
* @align: Block alignment in bytes of an audio sample.
* Only required for PCM or IEC formats.
* @options: encoder-specific settings
+ * @compr_passthr: compressed bitstream passthrough
* @reserved: reserved for future use
*/
@@ -400,7 +531,26 @@ struct snd_codec {
__u32 format;
__u32 align;
union snd_codec_options options;
- __u32 reserved[3];
+ __u32 compr_passthr;
+ __u32 flags;
+ __u32 reserved[1];
} __attribute__((packed, aligned(4)));
+#define SND_CODEC_COMPRESS_PASSTHROUGH
+
+/** struct snd_codec_metadata
+ * @length: Length of the encoded buffer.
+ * @offset: Offset from the buffer address to the first byte of the first
+ * encoded frame. All encoded frames are consecutive starting
+ * from this offset.
+ * @timestamp: Session time in microseconds of the first sample in the buffer.
+ * @reserved: Reserved for future use.
+ */
+struct snd_codec_metadata {
+ __u32 length;
+ __u32 offset;
+ __u64 timestamp;
+ __u32 reserved[4];
+};
+
#endif
diff --git a/include/vdso/bits.h b/include/vdso/bits.h
new file mode 100644
index 0000000..3276a43
--- /dev/null
+++ b/include/vdso/bits.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __VDSO_BITS_H
+#define __VDSO_BITS_H
+
+#define BIT(nr) (1UL << (nr))
+
+#endif /* __VDSO_BITS_H */
diff --git a/include/vdso/clocksource.h b/include/vdso/clocksource.h
new file mode 100644
index 0000000..c682e7c
--- /dev/null
+++ b/include/vdso/clocksource.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __VDSO_CLOCKSOURCE_H
+#define __VDSO_CLOCKSOURCE_H
+
+#include <vdso/limits.h>
+
+#ifdef CONFIG_GENERIC_GETTIMEOFDAY
+#include <asm/vdso/clocksource.h>
+#endif /* CONFIG_GENERIC_GETTIMEOFDAY */
+
+enum vdso_clock_mode {
+ VDSO_CLOCKMODE_NONE,
+#ifdef CONFIG_GENERIC_GETTIMEOFDAY
+ VDSO_ARCH_CLOCKMODES,
+#endif
+ VDSO_CLOCKMODE_MAX,
+
+ /* Indicator for time namespace VDSO */
+ VDSO_CLOCKMODE_TIMENS = INT_MAX
+};
+
+#endif /* __VDSO_CLOCKSOURCE_H */
diff --git a/include/vdso/const.h b/include/vdso/const.h
new file mode 100644
index 0000000..94b385a
--- /dev/null
+++ b/include/vdso/const.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __VDSO_CONST_H
+#define __VDSO_CONST_H
+
+#include <uapi/linux/const.h>
+
+#define UL(x) (_UL(x))
+#define ULL(x) (_ULL(x))
+
+#endif /* __VDSO_CONST_H */
diff --git a/include/vdso/datapage.h b/include/vdso/datapage.h
new file mode 100644
index 0000000..96442d5
--- /dev/null
+++ b/include/vdso/datapage.h
@@ -0,0 +1,117 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __VDSO_DATAPAGE_H
+#define __VDSO_DATAPAGE_H
+
+#ifndef __ASSEMBLY__
+
+#include <linux/compiler.h>
+#include <linux/compat_time.h>
+#include <uapi/linux/time.h>
+#include <uapi/linux/types.h>
+#include <uapi/asm-generic/errno-base.h>
+
+#include <vdso/bits.h>
+#include <vdso/clocksource.h>
+#include <vdso/ktime.h>
+#include <vdso/limits.h>
+#include <vdso/math64.h>
+#include <vdso/processor.h>
+#include <vdso/time.h>
+#include <vdso/time32.h>
+#include <vdso/time64.h>
+
+#define VDSO_BASES (CLOCK_TAI + 1)
+#define VDSO_HRES (BIT(CLOCK_REALTIME) | \
+ BIT(CLOCK_MONOTONIC) | \
+ BIT(CLOCK_BOOTTIME) | \
+ BIT(CLOCK_TAI))
+#define VDSO_COARSE (BIT(CLOCK_REALTIME_COARSE) | \
+ BIT(CLOCK_MONOTONIC_COARSE))
+#define VDSO_RAW (BIT(CLOCK_MONOTONIC_RAW))
+
+#define CS_HRES_COARSE 0
+#define CS_RAW 1
+#define CS_BASES (CS_RAW + 1)
+
+/**
+ * struct vdso_timestamp - basetime per clock_id
+ * @sec: seconds
+ * @nsec: nanoseconds
+ *
+ * There is one vdso_timestamp object in vvar for each vDSO-accelerated
+ * clock_id. For high-resolution clocks, this encodes the time
+ * corresponding to vdso_data.cycle_last. For coarse clocks this encodes
+ * the actual time.
+ *
+ * To be noticed that for highres clocks nsec is left-shifted by
+ * vdso_data.cs[x].shift.
+ */
+struct vdso_timestamp {
+ u64 sec;
+ u64 nsec;
+};
+
+/**
+ * struct vdso_data - vdso datapage representation
+ * @seq: timebase sequence counter
+ * @clock_mode: clock mode
+ * @cycle_last: timebase at clocksource init
+ * @mask: clocksource mask
+ * @mult: clocksource multiplier
+ * @shift: clocksource shift
+ * @basetime[clock_id]: basetime per clock_id
+ * @tz_minuteswest: minutes west of Greenwich
+ * @tz_dsttime: type of DST correction
+ * @hrtimer_res: hrtimer resolution
+ * @__unused: unused
+ *
+ * vdso_data will be accessed by 64 bit and compat code at the same time
+ * so we should be careful before modifying this structure.
+ */
+struct vdso_data {
+ u32 seq;
+
+ s32 clock_mode;
+ u64 cycle_last;
+ u64 mask;
+ u32 mult;
+ u32 shift;
+
+ struct vdso_timestamp basetime[VDSO_BASES];
+
+ s32 tz_minuteswest;
+ s32 tz_dsttime;
+ u32 hrtimer_res;
+ u32 __unused;
+};
+
+/*
+ * We use the hidden visibility to prevent the compiler from generating a GOT
+ * relocation. Not only is going through a GOT useless (the entry couldn't and
+ * must not be overridden by another library), it does not even work: the linker
+ * cannot generate an absolute address to the data page.
+ *
+ * With the hidden visibility, the compiler simply generates a PC-relative
+ * relocation, and this is what we need.
+ */
+extern struct vdso_data _vdso_data[CS_BASES] __attribute__((visibility("hidden")));
+
+/*
+ * The generic vDSO implementation requires that gettimeofday.h
+ * provides:
+ * - __arch_get_vdso_data(): to get the vdso datapage.
+ * - __arch_get_hw_counter(): to get the hw counter based on the
+ * clock_mode.
+ * - gettimeofday_fallback(): fallback for gettimeofday.
+ * - clock_gettime_fallback(): fallback for clock_gettime.
+ * - clock_getres_fallback(): fallback for clock_getres.
+ */
+#ifdef ENABLE_COMPAT_VDSO
+#include <asm/vdso/compat_gettimeofday.h>
+#else
+#include <asm/vdso/gettimeofday.h>
+#endif /* ENABLE_COMPAT_VDSO */
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* __VDSO_DATAPAGE_H */
diff --git a/include/vdso/helpers.h b/include/vdso/helpers.h
new file mode 100644
index 0000000..01641db
--- /dev/null
+++ b/include/vdso/helpers.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __VDSO_HELPERS_H
+#define __VDSO_HELPERS_H
+
+#ifndef __ASSEMBLY__
+
+#include <vdso/datapage.h>
+
+static __always_inline u32 vdso_read_begin(const struct vdso_data *vd)
+{
+ u32 seq;
+
+ while ((seq = READ_ONCE(vd->seq)) & 1)
+ cpu_relax();
+
+ smp_rmb();
+ return seq;
+}
+
+static __always_inline u32 vdso_read_retry(const struct vdso_data *vd,
+ u32 start)
+{
+ u32 seq;
+
+ smp_rmb();
+ seq = READ_ONCE(vd->seq);
+ return seq != start;
+}
+
+static __always_inline void vdso_write_begin(struct vdso_data *vd)
+{
+ /*
+ * WRITE_ONCE it is required otherwise the compiler can validly tear
+ * updates to vd[x].seq and it is possible that the value seen by the
+ * reader it is inconsistent.
+ */
+ WRITE_ONCE(vd[CS_HRES_COARSE].seq, vd[CS_HRES_COARSE].seq + 1);
+ WRITE_ONCE(vd[CS_RAW].seq, vd[CS_RAW].seq + 1);
+ smp_wmb();
+}
+
+static __always_inline void vdso_write_end(struct vdso_data *vd)
+{
+ smp_wmb();
+ /*
+ * WRITE_ONCE it is required otherwise the compiler can validly tear
+ * updates to vd[x].seq and it is possible that the value seen by the
+ * reader it is inconsistent.
+ */
+ WRITE_ONCE(vd[CS_HRES_COARSE].seq, vd[CS_HRES_COARSE].seq + 1);
+ WRITE_ONCE(vd[CS_RAW].seq, vd[CS_RAW].seq + 1);
+}
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* __VDSO_HELPERS_H */
diff --git a/include/vdso/jiffies.h b/include/vdso/jiffies.h
new file mode 100644
index 0000000..2f9d596
--- /dev/null
+++ b/include/vdso/jiffies.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __VDSO_JIFFIES_H
+#define __VDSO_JIFFIES_H
+
+#include <asm/param.h> /* for HZ */
+#include <vdso/time64.h>
+
+/* TICK_NSEC is the time between ticks in nsec assuming SHIFTED_HZ */
+#define TICK_NSEC ((NSEC_PER_SEC+HZ/2)/HZ)
+
+#endif /* __VDSO_JIFFIES_H */
diff --git a/include/vdso/ktime.h b/include/vdso/ktime.h
new file mode 100644
index 0000000..a0fd072
--- /dev/null
+++ b/include/vdso/ktime.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __VDSO_KTIME_H
+#define __VDSO_KTIME_H
+
+#include <vdso/jiffies.h>
+
+/*
+ * The resolution of the clocks. The resolution value is returned in
+ * the clock_getres() system call to give application programmers an
+ * idea of the (in)accuracy of timers. Timer values are rounded up to
+ * this resolution values.
+ */
+#define LOW_RES_NSEC TICK_NSEC
+#define KTIME_LOW_RES (LOW_RES_NSEC)
+
+#endif /* __VDSO_KTIME_H */
diff --git a/include/vdso/limits.h b/include/vdso/limits.h
new file mode 100644
index 0000000..0197888
--- /dev/null
+++ b/include/vdso/limits.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __VDSO_LIMITS_H
+#define __VDSO_LIMITS_H
+
+#define USHRT_MAX ((unsigned short)~0U)
+#define SHRT_MAX ((short)(USHRT_MAX >> 1))
+#define SHRT_MIN ((short)(-SHRT_MAX - 1))
+#define INT_MAX ((int)(~0U >> 1))
+#define INT_MIN (-INT_MAX - 1)
+#define UINT_MAX (~0U)
+#define LONG_MAX ((long)(~0UL >> 1))
+#define LONG_MIN (-LONG_MAX - 1)
+#define ULONG_MAX (~0UL)
+#define LLONG_MAX ((long long)(~0ULL >> 1))
+#define LLONG_MIN (-LLONG_MAX - 1)
+#define ULLONG_MAX (~0ULL)
+#define UINTPTR_MAX ULONG_MAX
+
+#endif /* __VDSO_LIMITS_H */
diff --git a/include/vdso/math64.h b/include/vdso/math64.h
new file mode 100644
index 0000000..7da703e
--- /dev/null
+++ b/include/vdso/math64.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __VDSO_MATH64_H
+#define __VDSO_MATH64_H
+
+static __always_inline u32
+__iter_div_u64_rem(u64 dividend, u32 divisor, u64 *remainder)
+{
+ u32 ret = 0;
+
+ while (dividend >= divisor) {
+ /* The following asm() prevents the compiler from
+ optimising this loop into a modulo operation. */
+ asm("" : "+rm"(dividend));
+
+ dividend -= divisor;
+ ret++;
+ }
+
+ *remainder = dividend;
+
+ return ret;
+}
+
+#endif /* __VDSO_MATH64_H */
diff --git a/include/vdso/processor.h b/include/vdso/processor.h
new file mode 100644
index 0000000..fbe8265
--- /dev/null
+++ b/include/vdso/processor.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020 ARM Ltd.
+ */
+#ifndef __VDSO_PROCESSOR_H
+#define __VDSO_PROCESSOR_H
+
+#ifndef __ASSEMBLY__
+
+#include <asm/vdso/processor.h>
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __VDSO_PROCESSOR_H */
diff --git a/include/vdso/time.h b/include/vdso/time.h
new file mode 100644
index 0000000..e5afa84
--- /dev/null
+++ b/include/vdso/time.h
@@ -0,0 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __VDSO_TIME_H
+#define __VDSO_TIME_H
+
+#endif /* __VDSO_TIME_H */
diff --git a/include/vdso/time32.h b/include/vdso/time32.h
new file mode 100644
index 0000000..63fa969
--- /dev/null
+++ b/include/vdso/time32.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __VDSO_TIME32_H
+#define __VDSO_TIME32_H
+
+/*
+ * New aliases for compat time functions. These will be used to replace
+ * the compat code so it can be shared between 32-bit and 64-bit builds
+ * both of which provide compatibility with old 32-bit tasks.
+ */
+#define old_time32_t compat_time_t
+#define old_timeval32 compat_timeval
+#define old_timespec32 compat_timespec
+
+#endif /* __VDSO_TIME32_H */
diff --git a/include/vdso/time64.h b/include/vdso/time64.h
new file mode 100644
index 0000000..9d43c3f
--- /dev/null
+++ b/include/vdso/time64.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __VDSO_TIME64_H
+#define __VDSO_TIME64_H
+
+/* Parameters used to convert the timespec values: */
+#define MSEC_PER_SEC 1000L
+#define USEC_PER_MSEC 1000L
+#define NSEC_PER_USEC 1000L
+#define NSEC_PER_MSEC 1000000L
+#define USEC_PER_SEC 1000000L
+#define NSEC_PER_SEC 1000000000L
+#define FSEC_PER_SEC 1000000000000000LL
+
+#endif /* __VDSO_TIME64_H */
diff --git a/include/vdso/vsyscall.h b/include/vdso/vsyscall.h
new file mode 100644
index 0000000..2c6134e
--- /dev/null
+++ b/include/vdso/vsyscall.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __VDSO_VSYSCALL_H
+#define __VDSO_VSYSCALL_H
+
+#ifndef __ASSEMBLY__
+
+#include <asm/vdso/vsyscall.h>
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* __VDSO_VSYSCALL_H */
diff --git a/init/Kconfig b/init/Kconfig
index b56a125..544217b 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -19,13 +19,23 @@
config CC_IS_CLANG
def_bool $(success,$(CC) --version | head -n 1 | grep -q clang)
+config LD_IS_LLD
+ def_bool $(success,$(LD) -v | head -n 1 | grep -q LLD)
+
config CLANG_VERSION
int
default $(shell,$(srctree)/scripts/clang-version.sh $(CC))
+config LLD_VERSION
+ int
+ default $(shell,$(srctree)/scripts/lld-version.sh $(LD))
+
config CC_HAS_ASM_GOTO
def_bool $(success,$(srctree)/scripts/gcc-goto.sh $(CC))
+config TOOLS_SUPPORT_RELR
+ def_bool $(success,env "CC=$(CC)" "LD=$(LD)" "NM=$(NM)" "OBJCOPY=$(OBJCOPY)" $(srctree)/scripts/tools-support-relr.sh)
+
config CONSTRUCTORS
bool
depends on !UML
@@ -492,6 +502,45 @@
Say N if unsure.
+config PSI
+ bool "Pressure stall information tracking"
+ help
+ Collect metrics that indicate how overcommitted the CPU, memory,
+ and IO capacity are in the system.
+
+ If you say Y here, the kernel will create /proc/pressure/ with the
+ pressure statistics files cpu, memory, and io. These will indicate
+ the share of walltime in which some or all tasks in the system are
+ delayed due to contention of the respective resource.
+
+ In kernels with cgroup support, cgroups (cgroup2 only) will
+ have cpu.pressure, memory.pressure, and io.pressure files,
+ which aggregate pressure stalls for the grouped tasks only.
+
+ For more details see Documentation/accounting/psi.txt.
+
+ Say N if unsure.
+
+config PSI_DEFAULT_DISABLED
+ bool "Require boot parameter to enable pressure stall information tracking"
+ default n
+ depends on PSI
+ help
+ If set, pressure stall information tracking will be disabled
+ per default but can be enabled through passing psi=1 on the
+ kernel commandline during boot.
+
+ This feature adds some code to the task wakeup and sleep
+ paths of the scheduler. The overhead is too low to affect
+ common scheduling-intense workloads in practice (such as
+ webservers, memcache), but it does show up in artificial
+ scheduler stress tests, such as hackbench.
+
+ If you are paranoid and not sure what the kernel will be
+ used for, say Y.
+
+ Say N if unsure.
+
endmenu # "CPU/Task time and stats accounting"
config CPU_ISOLATION
@@ -532,6 +581,15 @@
This option enables access to the kernel configuration file
through /proc/config.gz.
+config IKHEADERS
+ tristate "Enable kernel headers through /sys/kernel/kheaders.tar.xz"
+ depends on SYSFS
+ help
+ This option enables access to the in-kernel headers that are generated during
+ the build process. These can be used to build eBPF tracing programs,
+ or similar programs. If you build the headers as a module, a module called
+ kheaders.ko is built which can be loaded on-demand to get access to headers.
+
config LOG_BUF_SHIFT
int "Kernel log buffer size (16 => 64KB, 17 => 128KB)"
range 12 25 if !H8300
@@ -621,6 +679,59 @@
config GENERIC_SCHED_CLOCK
bool
+menu "Scheduler features"
+
+config UCLAMP_TASK
+ bool "Enable utilization clamping for RT/FAIR tasks"
+ depends on CPU_FREQ_GOV_SCHEDUTIL
+ help
+ This feature enables the scheduler to track the clamped utilization
+ of each CPU based on RUNNABLE tasks scheduled on that CPU.
+
+ With this option, the user can specify the min and max CPU
+ utilization allowed for RUNNABLE tasks. The max utilization defines
+ the maximum frequency a task should use while the min utilization
+ defines the minimum frequency it should use.
+
+ Both min and max utilization clamp values are hints to the scheduler,
+ aiming at improving its frequency selection policy, but they do not
+ enforce or grant any specific bandwidth for tasks.
+
+ If in doubt, say N.
+
+config UCLAMP_BUCKETS_COUNT
+ int "Number of supported utilization clamp buckets"
+ range 5 20
+ default 5
+ depends on UCLAMP_TASK
+ help
+ Defines the number of clamp buckets to use. The range of each bucket
+ will be SCHED_CAPACITY_SCALE/UCLAMP_BUCKETS_COUNT. The higher the
+ number of clamp buckets the finer their granularity and the higher
+ the precision of clamping aggregation and tracking at run-time.
+
+ For example, with the minimum configuration value we will have 5
+ clamp buckets tracking 20% utilization each. A 25% boosted tasks will
+ be refcounted in the [20..39]% bucket and will set the bucket clamp
+ effective value to 25%.
+ If a second 30% boosted task should be co-scheduled on the same CPU,
+ that task will be refcounted in the same bucket of the first task and
+ it will boost the bucket clamp effective value to 30%.
+ The clamp effective value of a bucket is reset to its nominal value
+ (20% in the example above) when there are no more tasks refcounted in
+ that bucket.
+
+ An additional boost/capping margin can be added to some tasks. In the
+ example above the 25% task will be boosted to 30% until it exits the
+ CPU. If that should be considered not acceptable on certain systems,
+ it's always possible to reduce the margin by increasing the number of
+ clamp buckets to trade off used memory for run-time tracking
+ precision.
+
+ If in doubt, use the default value.
+
+endmenu
+
#
# For architectures that want to enable the support for NUMA-affine scheduler
# balancing logic:
@@ -794,6 +905,28 @@
endif #CGROUP_SCHED
+config UCLAMP_TASK_GROUP
+ bool "Utilization clamping per group of tasks"
+ depends on CGROUP_SCHED
+ depends on UCLAMP_TASK
+ default n
+ help
+ This feature enables the scheduler to track the clamped utilization
+ of each CPU based on RUNNABLE tasks currently scheduled on that CPU.
+
+ When this option is enabled, the user can specify a min and max
+ CPU bandwidth which is allowed for each single task in a group.
+ The max bandwidth allows to clamp the maximum frequency a task
+ can use, while the min bandwidth allows to define a minimum
+ frequency a task will always use.
+
+ When task group based utilization clamping is enabled, an eventually
+ specified task-specific clamp value is constrained by the cgroup
+ specified clamp value. Both minimum and maximum task clamping cannot
+ be bigger than the corresponding clamping defined at task group level.
+
+ If in doubt, say N.
+
config CGROUP_PIDS
bool "PIDs controller"
help
@@ -999,6 +1132,30 @@
desktop applications. Task group autogeneration is currently based
upon task session.
+config SCHED_TUNE
+ bool "Boosting for CFS tasks (EXPERIMENTAL)"
+ depends on !UCLAMP_TASK
+ depends on SMP
+ help
+ This option enables support for task classification using a new
+ cgroup controller, schedtune. Schedtune allows tasks to be given
+ a boost value and marked as latency-sensitive or not. This option
+ provides the "schedtune" controller.
+
+ This new controller:
+ 1. allows only a two layers hierarchy, where the root defines the
+ system-wide boost value and its direct childrens define each one a
+ different "class of tasks" to be boosted with a different value
+ 2. supports up to 16 different task classes, each one which could be
+ configured with a different boost value
+
+ Latency-sensitive tasks are not subject to energy-aware wakeup
+ task placement. The boost value assigned to tasks is used to
+ influence task placement and CPU frequency selection (if
+ utilization-driven frequency selection is in use).
+
+ If unsure, say N.
+
config SYSFS_DEPRECATED
bool "Enable deprecated sysfs features to support old userspace tools"
depends on SYSFS
@@ -1123,9 +1280,6 @@
config SYSCTL
bool
-config ANON_INODES
- bool
-
config HAVE_UID16
bool
@@ -1330,14 +1484,12 @@
config EPOLL
bool "Enable eventpoll support" if EXPERT
default y
- select ANON_INODES
help
Disabling this option will cause the kernel to be built without
support for epoll family of system calls.
config SIGNALFD
bool "Enable signalfd() system call" if EXPERT
- select ANON_INODES
default y
help
Enable the signalfd() system call that allows to receive signals
@@ -1347,7 +1499,6 @@
config TIMERFD
bool "Enable timerfd() system call" if EXPERT
- select ANON_INODES
default y
help
Enable the timerfd() system call that allows to receive timer
@@ -1357,7 +1508,6 @@
config EVENTFD
bool "Enable eventfd() system call" if EXPERT
- select ANON_INODES
default y
help
Enable the eventfd() system call that allows to receive both
@@ -1459,7 +1609,6 @@
# syscall, maps, verifier
config BPF_SYSCALL
bool "Enable bpf() system call"
- select ANON_INODES
select BPF
select IRQ_WORK
default n
@@ -1476,7 +1625,6 @@
config USERFAULTFD
bool "Enable userfaultfd() system call"
- select ANON_INODES
depends on MMU
help
Enable the userfaultfd() system call that allows to intercept and
@@ -1543,7 +1691,6 @@
bool "Kernel performance events and counters"
default y if PROFILING
depends on HAVE_PERF_EVENTS
- select ANON_INODES
select IRQ_WORK
select SRCU
help
@@ -1977,11 +2124,24 @@
If unsure, or if you need to build out-of-tree modules, say N.
+config UNUSED_KSYMS_WHITELIST
+ string "Whitelist of symbols to keep in ksymtab"
+ depends on TRIM_UNUSED_KSYMS
+ help
+ By default, all unused exported symbols will be un-exported from the
+ build when TRIM_UNUSED_KSYMS is selected.
+
+ UNUSED_KSYMS_WHITELIST allows to whitelist symbols that must be kept
+ exported at all times, even in absence of in-tree users. The value to
+ set here is the path to a text file containing the list of symbols,
+ one per line. The path can be absolute, or relative to the kernel
+ source tree.
+
endif # MODULES
config MODULES_TREE_LOOKUP
def_bool y
- depends on PERF_EVENTS || TRACING
+ depends on PERF_EVENTS || TRACING || CFI_CLANG
config INIT_ALL_POSSIBLE
bool
@@ -2023,3 +2183,5 @@
# <asm/syscall_wrapper.h>.
config ARCH_HAS_SYSCALL_WRAPPER
def_bool n
+
+source "init/Kconfig.gki"
diff --git a/init/Kconfig.gki b/init/Kconfig.gki
new file mode 100644
index 0000000..6d0c4fd
--- /dev/null
+++ b/init/Kconfig.gki
@@ -0,0 +1,167 @@
+config GKI_HIDDEN_DRM_CONFIGS
+ bool "Hidden DRM configs needed for GKI"
+ select DRM_KMS_HELPER if (HAS_IOMEM && DRM)
+ select DRM_GEM_CMA_HELPER
+ select DRM_MIPI_DSI
+ select DRM_TTM if (HAS_IOMEM && DRM)
+ select VIDEOMODE_HELPERS
+ help
+ Dummy config option used to enable hidden DRM configs.
+ These are normally selected implicitly when including a
+ DRM module, but for GKI, the modules are built out-of-tree.
+
+config GKI_HIDDEN_REGMAP_CONFIGS
+ bool "Hidden Regmap configs needed for GKI"
+ select REGMAP_IRQ
+ help
+ Dummy config option used to enable hidden regmap configs.
+ These are normally selected implicitly when a module
+ that relies on it is configured.
+
+config GKI_HIDDEN_CRYPTO_CONFIGS
+ bool "Hidden CRYPTO configs needed for GKI"
+ select CRYPTO_ENGINE
+ help
+ Dummy config option used to enable hidden CRYPTO configs.
+ These are normally selected implicitly when a module
+ that relies on it is configured.
+
+config GKI_HIDDEN_SND_CONFIGS
+ bool "Hidden SND configs needed for GKI"
+ select SND_VMASTER
+ select SND_PCM_ELD
+ select SND_JACK
+ select SND_JACK_INPUT_DEV
+ help
+ Dummy config option used to enable hidden SND configs.
+ These are normally selected implicitly when a module
+ that relies on it is configured.
+
+config GKI_HIDDEN_SND_SOC_CONFIGS
+ bool "Hidden SND_SOC configs needed for GKI"
+ select SND_SOC_GENERIC_DMAENGINE_PCM if (SND_SOC && SND)
+ select SND_SOC_COMPRESS if (SND_SOC && SND)
+ help
+ Dummy config option used to enable hidden SND_SOC configs.
+ These are normally selected implicitly when a module
+ that relies on it is configured.
+
+config GKI_HIDDEN_GPIO_CONFIGS
+ bool "Hidden GPIO configs needed for GKI"
+ select PINCTRL_SINGLE if (PINCTRL && OF && HAS_IOMEM)
+ select GPIO_PL061 if (HAS_IOMEM && ARM_AMBA && GPIOLIB)
+ help
+ Dummy config option used to enable hidden GPIO configs.
+ These are normally selected implicitly when a module
+ that relies on it is configured.
+
+config GKI_HIDDEN_VIRTUAL_CONFIGS
+ bool "Hidden Virtual configs needed for GKI"
+ select HVC_DRIVER
+ help
+ Dummy config option used to enable hidden virtual device configs.
+ These are normally selected implicitly when a module
+ that relies on it is configured.
+
+# LEGACY_WEXT_ALLCONFIG Discussed upstream, soundly rejected as a unique
+# problem for GKI to solve. It should be noted that these extensions are
+# in-effect deprecated and generally unsupported and we should pressure
+# the SOC vendors to drop any modules that require these extensions.
+config GKI_LEGACY_WEXT_ALLCONFIG
+ bool "Hidden wireless extension configs needed for GKI"
+ select WIRELESS_EXT
+ select WEXT_CORE
+ select WEXT_PROC
+ select WEXT_SPY
+ select WEXT_PRIV
+ help
+ Dummy config option used to enable all the hidden legacy wireless
+ extensions to the core wireless network functionality used by
+ add-in modules.
+
+ If you are not building a kernel to be used for a variety of
+ out-of-kernel built wireless modules, say N here.
+
+config GKI_HIDDEN_SOC_PM_CONFIGS
+ bool "Hidden SOC Power Management configs for GKI"
+ select PM_GENERIC_DOMAINS if PM
+ help
+ Dummy config option used to enable all the hidden SOC specific power
+ management add-in modules.
+
+config GKI_HIDDEN_VIDEOBUF2_CONFIGS
+ bool "Hidden v4l2 configs for GKI"
+ select V4L2_MEM2MEM_DEV if VIDEO_V4L2
+ select VIDEOBUF2_CORE if VIDEO_V4L2
+ select VIDEOBUF2_V4L2 if VIDEO_V4L2
+ select VIDEOBUF2_VMALLOC if VIDEO_V4L2
+ select VIDEOBUF2_MEMOPS if VIDEO_V4L2
+ help
+ Dummy config option used to enable all the hidden v4l2 media module.
+
+config GKI_HIDDEN_USB_CONFIGS
+ bool "Hiddel USB configurations needed for GKI"
+ select USB_PHY
+ help
+ Dummy config option used to enable all USB related hidden configs.
+ These configurations are usually only selected by another config
+ option or a combination of them.
+
+ If you are not building a kernel to be used for a variety of
+ out-of-kernel build USB drivers, say N here.
+
+config GKI_HIDDEN_SOC_BUS_CONFIGS
+ bool "Hidden SoC bus configuration needed for GKI"
+ select SOC_BUS
+ help
+ Dummy config option used to enable SOC_BUS hidden Kconfig.
+ The configuration is required for SoCs to register themselves to the bus.
+
+ If you are not building a kernel to be used for a variety of SoCs and
+ out-of-tree drivers, say N here.
+
+config GKI_HIDDEN_GPU_CONFIGS
+ bool "Hidden GPU configuration needed for GKI"
+ select TRACE_GPU_MEM
+ help
+ Dummy config option used to enable the hidden GPU config.
+ These are normally selected implicitly when a module
+ that relies on it is configured.
+
+config GKI_HIDDEN_IRQ_CONFIGS
+ bool "Hidden IRQ configuration needed for GKI"
+ select GENERIC_IRQ_CHIP
+ help
+ Dummy config option used to enable GENERIC_IRQ_CHIP hidden
+ config, required by various SoC platforms. This is usually
+ selected by ARCH_*.
+
+# Atrocities needed for
+# a) building GKI modules in separate tree, or
+# b) building drivers that are not modularizable
+#
+# All of these should be reworked into an upstream solution
+# if possible.
+#
+config GKI_HACKS_TO_FIX
+ bool "GKI Dummy config options"
+ select GKI_HIDDEN_CRYPTO_CONFIGS
+ select GKI_HIDDEN_DRM_CONFIGS
+ select GKI_HIDDEN_REGMAP_CONFIGS
+ select GKI_HIDDEN_SND_CONFIGS
+ select GKI_HIDDEN_SND_SOC_CONFIGS
+ select GKI_HIDDEN_GPIO_CONFIGS
+ select GKI_LEGACY_WEXT_ALLCONFIG
+ select GKI_HIDDEN_VIRTUAL_CONFIGS
+ select GKI_HIDDEN_SOC_PM_CONFIGS
+ select GKI_HIDDEN_VIDEOBUF2_CONFIGS
+ select GKI_HIDDEN_USB_CONFIGS
+ select GKI_HIDDEN_SOC_BUS_CONFIGS
+ select GKI_HIDDEN_GPU_CONFIGS
+ select GKI_HIDDEN_IRQ_CONFIGS
+ help
+ Dummy config option used to enable core functionality used by
+ modules that may not be selectable in this config.
+
+ Unless you are building a GKI kernel to be used with modules
+ built from a different config, say N here.
diff --git a/init/Makefile b/init/Makefile
index a3e5ce2..e1089b9 100644
--- a/init/Makefile
+++ b/init/Makefile
@@ -33,5 +33,6 @@
silent_chk_compile.h = :
include/generated/compile.h: FORCE
@$($(quiet)chk_compile.h)
- $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkcompile_h $@ \
- "$(UTS_MACHINE)" "$(CONFIG_SMP)" "$(CONFIG_PREEMPT)" "$(CC) $(KBUILD_CFLAGS)"
+ $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkcompile_h $@ \
+ "$(UTS_MACHINE)" "$(CONFIG_SMP)" "$(CONFIG_PREEMPT)" \
+ "$(CC) $(KBUILD_CFLAGS)" "$(LD)"
diff --git a/init/init_task.c b/init/init_task.c
index 994ffe0..b31109d 100644
--- a/init/init_task.c
+++ b/init/init_task.c
@@ -10,6 +10,7 @@
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/audit.h>
+#include <linux/scs.h>
#include <asm/pgtable.h>
#include <linux/uaccess.h>
@@ -73,6 +74,7 @@ struct task_struct init_task
.policy = SCHED_NORMAL,
.cpus_allowed = CPU_MASK_ALL,
.nr_cpus_allowed= NR_CPUS,
+ .cpus_requested = CPU_MASK_ALL,
.mm = NULL,
.active_mm = &init_mm,
.restart_block = {
@@ -183,6 +185,13 @@ struct task_struct init_task
};
EXPORT_SYMBOL(init_task);
+#ifdef CONFIG_SHADOW_CALL_STACK
+unsigned long init_shadow_call_stack[SCS_SIZE / sizeof(long)] __init_task_data
+ __aligned(SCS_SIZE) = {
+ [(SCS_SIZE / sizeof(long)) - 1] = SCS_END_MAGIC
+};
+#endif
+
/*
* Initial thread structure. Alignment of this is handled by a special
* linker map entry.
diff --git a/init/main.c b/init/main.c
index 7baad67..225ae55 100644
--- a/init/main.c
+++ b/init/main.c
@@ -133,6 +133,7 @@ void (*__initdata late_time_init)(void);
char __initdata boot_command_line[COMMAND_LINE_SIZE];
/* Untouched saved command line (eg. for /proc) */
char *saved_command_line;
+EXPORT_SYMBOL_GPL(saved_command_line);
/* Command line for parameter parsing */
static char *static_command_line;
/* Command line for per-initcall parameter parsing */
@@ -506,6 +507,31 @@ static inline void initcall_debug_enable(void)
}
#endif
+/* Report memory auto-initialization states for this boot. */
+static void __init report_meminit(void)
+{
+ const char *stack;
+
+ if (IS_ENABLED(CONFIG_INIT_STACK_ALL_PATTERN))
+ stack = "all(pattern)";
+ else if (IS_ENABLED(CONFIG_INIT_STACK_ALL_ZERO))
+ stack = "all(zero)";
+ else if (IS_ENABLED(CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF_ALL))
+ stack = "byref_all(zero)";
+ else if (IS_ENABLED(CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF))
+ stack = "byref(zero)";
+ else if (IS_ENABLED(CONFIG_GCC_PLUGIN_STRUCTLEAK_USER))
+ stack = "__user(zero)";
+ else
+ stack = "off";
+
+ pr_info("mem auto-init: stack:%s, heap alloc:%s, heap free:%s\n",
+ stack, want_init_on_alloc(GFP_KERNEL) ? "on" : "off",
+ want_init_on_free() ? "on" : "off");
+ if (want_init_on_free())
+ pr_info("mem auto-init: clearing system memory may take some time...\n");
+}
+
/*
* Set up kernel memory allocators
*/
@@ -516,6 +542,7 @@ static void __init mm_init(void)
* bigger than MAX_ORDER unless SPARSEMEM.
*/
page_ext_init_flatmem();
+ report_meminit();
mem_init();
kmem_cache_init();
pgtable_init();
@@ -549,13 +576,6 @@ asmlinkage __visible void __init start_kernel(void)
page_address_init();
pr_notice("%s", linux_banner);
setup_arch(&command_line);
- /*
- * Set up the the initial canary and entropy after arch
- * and after adding latent and command line entropy.
- */
- add_latent_entropy();
- add_device_randomness(command_line, strlen(command_line));
- boot_init_stack_canary();
mm_init_cpumask(&init_mm);
setup_command_line(command_line);
setup_nr_cpu_ids();
@@ -640,6 +660,20 @@ asmlinkage __visible void __init start_kernel(void)
hrtimers_init();
softirq_init();
timekeeping_init();
+
+ /*
+ * For best initial stack canary entropy, prepare it after:
+ * - setup_arch() for any UEFI RNG entropy and boot cmdline access
+ * - timekeeping_init() for ktime entropy used in rand_initialize()
+ * - rand_initialize() to get any arch-specific entropy like RDRAND
+ * - add_latent_entropy() to get any latent entropy
+ * - adding command line entropy
+ */
+ rand_initialize();
+ add_latent_entropy();
+ add_device_randomness(command_line, strlen(command_line));
+ boot_init_stack_canary();
+
time_init();
perf_event_init();
profile_init();
diff --git a/init/version.c b/init/version.c
index ef4012e..046b830 100644
--- a/init/version.c
+++ b/init/version.c
@@ -46,6 +46,9 @@ const char linux_banner[] =
"Linux version " UTS_RELEASE " (" LINUX_COMPILE_BY "@"
LINUX_COMPILE_HOST ") (" LINUX_COMPILER ") " UTS_VERSION "\n";
+const char *linux_banner_ptr = linux_banner;
+EXPORT_SYMBOL_GPL(linux_banner_ptr);
+
const char linux_proc_banner[] =
"%s version %s"
" (" LINUX_COMPILE_BY "@" LINUX_COMPILE_HOST ")"
diff --git a/kernel/.gitignore b/kernel/.gitignore
index b3097bd..084572a 100644
--- a/kernel/.gitignore
+++ b/kernel/.gitignore
@@ -3,5 +3,6 @@
#
config_data.h
config_data.gz
+kheaders.md5
timeconst.h
hz.bc
diff --git a/kernel/Makefile b/kernel/Makefile
index 01bc1d3..932cf74 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -32,8 +32,13 @@
KASAN_SANITIZE_kcov.o := n
CFLAGS_kcov.o := $(call cc-option, -fno-conserve-stack -fno-stack-protector)
-# cond_syscall is currently not LTO compatible
+ifndef CONFIG_CFI_CLANG
+# cond_syscall is currently not gcc LTO compatible
CFLAGS_sys_ni.o = $(DISABLE_LTO)
+endif
+
+# Don't instrument error handlers
+CFLAGS_cfi.o = $(DISABLE_CFI_CLANG)
obj-y += sched/
obj-y += locking/
@@ -71,6 +76,7 @@
obj-$(CONFIG_USER_NS) += user_namespace.o
obj-$(CONFIG_PID_NS) += pid_namespace.o
obj-$(CONFIG_IKCONFIG) += configs.o
+obj-$(CONFIG_IKHEADERS) += kheaders.o
obj-$(CONFIG_SMP) += stop_machine.o
obj-$(CONFIG_KPROBES_SANITY_TEST) += test_kprobes.o
obj-$(CONFIG_AUDIT) += audit.o auditfilter.o
@@ -100,6 +106,8 @@
obj-$(CONFIG_IRQ_WORK) += irq_work.o
obj-$(CONFIG_CPU_PM) += cpu_pm.o
obj-$(CONFIG_BPF) += bpf/
+obj-$(CONFIG_CFI_CLANG) += cfi.o
+obj-$(CONFIG_SHADOW_CALL_STACK) += scs.o
obj-$(CONFIG_PERF_EVENTS) += events/
@@ -124,3 +132,12 @@
targets += config_data.h
$(obj)/config_data.h: $(obj)/config_data.gz FORCE
$(call filechk,ikconfiggz)
+
+$(obj)/kheaders.o: $(obj)/kheaders_data.tar.xz
+
+quiet_cmd_genikh = CHK $(obj)/kheaders_data.tar.xz
+cmd_genikh = $(CONFIG_SHELL) $(srctree)/kernel/gen_kheaders.sh $@
+$(obj)/kheaders_data.tar.xz: FORCE
+ $(call cmd,genikh)
+
+clean-files := kheaders_data.tar.xz kheaders.md5
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
index 341402bc..fca8b65 100644
--- a/kernel/bpf/core.c
+++ b/kernel/bpf/core.c
@@ -622,6 +622,14 @@ static void bpf_jit_uncharge_modmem(u32 pages)
atomic_long_sub(pages, &bpf_jit_current);
}
+#if IS_ENABLED(CONFIG_BPF_JIT) && IS_ENABLED(CONFIG_CFI_CLANG)
+bool __weak arch_bpf_jit_check_func(const struct bpf_prog *prog)
+{
+ return true;
+}
+EXPORT_SYMBOL_GPL(arch_bpf_jit_check_func);
+#endif
+
struct bpf_binary_header *
bpf_jit_binary_alloc(unsigned int proglen, u8 **image_ptr,
unsigned int alignment,
@@ -648,6 +656,7 @@ bpf_jit_binary_alloc(unsigned int proglen, u8 **image_ptr,
/* Fill space with illegal/arch-dep instructions. */
bpf_fill_ill_insns(hdr, size);
+ bpf_jit_set_header_magic(hdr);
hdr->pages = pages;
hole = min_t(unsigned int, size - (proglen + sizeof(*hdr)),
PAGE_SIZE - sizeof(*hdr));
@@ -1874,6 +1883,7 @@ const struct bpf_func_proto bpf_get_prandom_u32_proto __weak;
const struct bpf_func_proto bpf_get_smp_processor_id_proto __weak;
const struct bpf_func_proto bpf_get_numa_node_id_proto __weak;
const struct bpf_func_proto bpf_ktime_get_ns_proto __weak;
+const struct bpf_func_proto bpf_ktime_get_boot_ns_proto __weak;
const struct bpf_func_proto bpf_get_current_pid_tgid_proto __weak;
const struct bpf_func_proto bpf_get_current_uid_gid_proto __weak;
diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c
index 1991466..c54e3ac 100644
--- a/kernel/bpf/helpers.c
+++ b/kernel/bpf/helpers.c
@@ -112,7 +112,19 @@ BPF_CALL_0(bpf_ktime_get_ns)
const struct bpf_func_proto bpf_ktime_get_ns_proto = {
.func = bpf_ktime_get_ns,
- .gpl_only = true,
+ .gpl_only = false,
+ .ret_type = RET_INTEGER,
+};
+
+BPF_CALL_0(bpf_ktime_get_boot_ns)
+{
+ /* NMI safe access to clock boottime */
+ return ktime_get_boot_fast_ns();
+}
+
+const struct bpf_func_proto bpf_ktime_get_boot_ns_proto = {
+ .func = bpf_ktime_get_boot_ns,
+ .gpl_only = false,
.ret_type = RET_INTEGER,
};
diff --git a/kernel/cfi.c b/kernel/cfi.c
new file mode 100644
index 0000000..5092eaa
--- /dev/null
+++ b/kernel/cfi.c
@@ -0,0 +1,306 @@
+/*
+ * CFI (Control Flow Integrity) error and slowpath handling
+ *
+ * Copyright (C) 2017 Google, Inc.
+ */
+
+#include <linux/gfp.h>
+#include <linux/module.h>
+#include <linux/printk.h>
+#include <linux/ratelimit.h>
+#include <linux/rcupdate.h>
+#include <linux/spinlock.h>
+#include <asm/bug.h>
+#include <asm/cacheflush.h>
+#include <asm/set_memory.h>
+
+/* Compiler-defined handler names */
+#ifdef CONFIG_CFI_PERMISSIVE
+#define cfi_failure_handler __ubsan_handle_cfi_check_fail
+#define cfi_slowpath_handler __cfi_slowpath_diag
+#else /* enforcing */
+#define cfi_failure_handler __ubsan_handle_cfi_check_fail_abort
+#define cfi_slowpath_handler __cfi_slowpath
+#endif /* CONFIG_CFI_PERMISSIVE */
+
+static inline void handle_cfi_failure(void *ptr)
+{
+#ifdef CONFIG_CFI_PERMISSIVE
+ WARN_RATELIMIT(1, "CFI failure (target: %pF):\n", ptr);
+#else
+ pr_err("CFI failure (target: %pF):\n", ptr);
+ BUG();
+#endif
+}
+
+#ifdef CONFIG_MODULES
+#ifdef CONFIG_CFI_CLANG_SHADOW
+struct shadow_range {
+ /* Module address range */
+ unsigned long mod_min_addr;
+ unsigned long mod_max_addr;
+ /* Module page range */
+ unsigned long min_page;
+ unsigned long max_page;
+};
+
+#define SHADOW_ORDER 1
+#define SHADOW_PAGES (1 << SHADOW_ORDER)
+#define SHADOW_SIZE \
+ ((SHADOW_PAGES * PAGE_SIZE - sizeof(struct shadow_range)) / sizeof(u16))
+#define SHADOW_INVALID 0xFFFF
+
+struct cfi_shadow {
+ /* Page range covered by the shadow */
+ struct shadow_range r;
+ /* Page offsets to __cfi_check functions in modules */
+ u16 shadow[SHADOW_SIZE];
+};
+
+static DEFINE_SPINLOCK(shadow_update_lock);
+static struct cfi_shadow __rcu *cfi_shadow __read_mostly = NULL;
+
+static inline int ptr_to_shadow(const struct cfi_shadow *s, unsigned long ptr)
+{
+ unsigned long index;
+ unsigned long page = ptr >> PAGE_SHIFT;
+
+ if (unlikely(page < s->r.min_page))
+ return -1; /* Outside of module area */
+
+ index = page - s->r.min_page;
+
+ if (index >= SHADOW_SIZE)
+ return -1; /* Cannot be addressed with shadow */
+
+ return (int)index;
+}
+
+static inline unsigned long shadow_to_ptr(const struct cfi_shadow *s,
+ int index)
+{
+ BUG_ON(index < 0 || index >= SHADOW_SIZE);
+
+ if (unlikely(s->shadow[index] == SHADOW_INVALID))
+ return 0;
+
+ return (s->r.min_page + s->shadow[index]) << PAGE_SHIFT;
+}
+
+static inline unsigned long shadow_to_page(const struct cfi_shadow *s,
+ int index)
+{
+ BUG_ON(index < 0 || index >= SHADOW_SIZE);
+
+ return (s->r.min_page + index) << PAGE_SHIFT;
+}
+
+static void prepare_next_shadow(const struct cfi_shadow __rcu *prev,
+ struct cfi_shadow *next)
+{
+ int i, index, check;
+
+ /* Mark everything invalid */
+ memset(next->shadow, 0xFF, sizeof(next->shadow));
+
+ if (!prev)
+ return; /* No previous shadow */
+
+ /* If the base address didn't change, update is not needed */
+ if (prev->r.min_page == next->r.min_page) {
+ memcpy(next->shadow, prev->shadow, sizeof(next->shadow));
+ return;
+ }
+
+ /* Convert the previous shadow to the new address range */
+ for (i = 0; i < SHADOW_SIZE; ++i) {
+ if (prev->shadow[i] == SHADOW_INVALID)
+ continue;
+
+ index = ptr_to_shadow(next, shadow_to_page(prev, i));
+ if (index < 0)
+ continue;
+
+ check = ptr_to_shadow(next,
+ shadow_to_ptr(prev, prev->shadow[i]));
+ if (check < 0)
+ continue;
+
+ next->shadow[index] = (u16)check;
+ }
+}
+
+static void add_module_to_shadow(struct cfi_shadow *s, struct module *mod)
+{
+ unsigned long ptr;
+ unsigned long min_page_addr;
+ unsigned long max_page_addr;
+ unsigned long check = (unsigned long)mod->cfi_check;
+ int check_index = ptr_to_shadow(s, check);
+
+ BUG_ON((check & PAGE_MASK) != check); /* Must be page aligned */
+
+ if (check_index < 0)
+ return; /* Module not addressable with shadow */
+
+ min_page_addr = (unsigned long)mod->core_layout.base & PAGE_MASK;
+ max_page_addr = (unsigned long)mod->core_layout.base +
+ mod->core_layout.text_size;
+ max_page_addr &= PAGE_MASK;
+
+ /* For each page, store the check function index in the shadow */
+ for (ptr = min_page_addr; ptr <= max_page_addr; ptr += PAGE_SIZE) {
+ int index = ptr_to_shadow(s, ptr);
+ if (index >= 0) {
+ /* Assume a page only contains code for one module */
+ BUG_ON(s->shadow[index] != SHADOW_INVALID);
+ s->shadow[index] = (u16)check_index;
+ }
+ }
+}
+
+static void remove_module_from_shadow(struct cfi_shadow *s, struct module *mod)
+{
+ unsigned long ptr;
+ unsigned long min_page_addr;
+ unsigned long max_page_addr;
+
+ min_page_addr = (unsigned long)mod->core_layout.base & PAGE_MASK;
+ max_page_addr = (unsigned long)mod->core_layout.base +
+ mod->core_layout.text_size;
+ max_page_addr &= PAGE_MASK;
+
+ for (ptr = min_page_addr; ptr <= max_page_addr; ptr += PAGE_SIZE) {
+ int index = ptr_to_shadow(s, ptr);
+ if (index >= 0)
+ s->shadow[index] = SHADOW_INVALID;
+ }
+}
+
+typedef void (*update_shadow_fn)(struct cfi_shadow *, struct module *);
+
+static void update_shadow(struct module *mod, unsigned long min_addr,
+ unsigned long max_addr, update_shadow_fn fn)
+{
+ struct cfi_shadow *prev;
+ struct cfi_shadow *next = (struct cfi_shadow *)
+ __get_free_pages(GFP_KERNEL, SHADOW_ORDER);
+
+ BUG_ON(!next);
+
+ next->r.mod_min_addr = min_addr;
+ next->r.mod_max_addr = max_addr;
+ next->r.min_page = min_addr >> PAGE_SHIFT;
+ next->r.max_page = max_addr >> PAGE_SHIFT;
+
+ spin_lock(&shadow_update_lock);
+ prev = rcu_dereference_protected(cfi_shadow, 1);
+ prepare_next_shadow(prev, next);
+
+ fn(next, mod);
+ set_memory_ro((unsigned long)next, SHADOW_PAGES);
+ rcu_assign_pointer(cfi_shadow, next);
+
+ spin_unlock(&shadow_update_lock);
+ synchronize_rcu();
+
+ if (prev) {
+ set_memory_rw((unsigned long)prev, SHADOW_PAGES);
+ free_pages((unsigned long)prev, SHADOW_ORDER);
+ }
+}
+
+void cfi_module_add(struct module *mod, unsigned long min_addr,
+ unsigned long max_addr)
+{
+ update_shadow(mod, min_addr, max_addr, add_module_to_shadow);
+}
+EXPORT_SYMBOL_GPL(cfi_module_add);
+
+void cfi_module_remove(struct module *mod, unsigned long min_addr,
+ unsigned long max_addr)
+{
+ update_shadow(mod, min_addr, max_addr, remove_module_from_shadow);
+}
+EXPORT_SYMBOL_GPL(cfi_module_remove);
+
+static inline cfi_check_fn ptr_to_check_fn(const struct cfi_shadow __rcu *s,
+ unsigned long ptr)
+{
+ int index;
+
+ if (unlikely(!s))
+ return NULL; /* No shadow available */
+
+ if (ptr < s->r.mod_min_addr || ptr > s->r.mod_max_addr)
+ return NULL; /* Not in a mapped module */
+
+ index = ptr_to_shadow(s, ptr);
+ if (index < 0)
+ return NULL; /* Cannot be addressed with shadow */
+
+ return (cfi_check_fn)shadow_to_ptr(s, index);
+}
+#endif /* CONFIG_CFI_CLANG_SHADOW */
+
+static inline cfi_check_fn find_module_cfi_check(void *ptr)
+{
+ struct module *mod;
+
+ preempt_disable();
+ mod = __module_address((unsigned long)ptr);
+ preempt_enable();
+
+ if (mod)
+ return mod->cfi_check;
+
+ return CFI_CHECK_FN;
+}
+
+static inline cfi_check_fn find_cfi_check(void *ptr)
+{
+#ifdef CONFIG_CFI_CLANG_SHADOW
+ cfi_check_fn f;
+
+ if (!rcu_access_pointer(cfi_shadow))
+ return CFI_CHECK_FN; /* No loaded modules */
+
+ /* Look up the __cfi_check function to use */
+ rcu_read_lock();
+ f = ptr_to_check_fn(rcu_dereference(cfi_shadow), (unsigned long)ptr);
+ rcu_read_unlock();
+
+ if (f)
+ return f;
+
+ /*
+ * Fall back to find_module_cfi_check, which works also for a larger
+ * module address space, but is slower.
+ */
+#endif /* CONFIG_CFI_CLANG_SHADOW */
+
+ return find_module_cfi_check(ptr);
+}
+
+void cfi_slowpath_handler(uint64_t id, void *ptr, void *diag)
+{
+ cfi_check_fn check = find_cfi_check(ptr);
+
+ if (likely(check))
+ check(id, ptr, diag);
+ else /* Don't allow unchecked modules */
+ handle_cfi_failure(ptr);
+}
+EXPORT_SYMBOL_GPL(cfi_slowpath_handler);
+#endif /* CONFIG_MODULES */
+
+void cfi_failure_handler(void *data, void *ptr, void *vtable)
+{
+ handle_cfi_failure(ptr);
+}
+EXPORT_SYMBOL_GPL(cfi_failure_handler);
+
+void __cfi_check_fail(void *data, void *ptr)
+{
+ handle_cfi_failure(ptr);
+}
diff --git a/kernel/cgroup/Makefile b/kernel/cgroup/Makefile
index bfcdae8..5d7a76b 100644
--- a/kernel/cgroup/Makefile
+++ b/kernel/cgroup/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
-obj-y := cgroup.o rstat.o namespace.o cgroup-v1.o
+obj-y := cgroup.o rstat.o namespace.o cgroup-v1.o freezer.o
-obj-$(CONFIG_CGROUP_FREEZER) += freezer.o
+obj-$(CONFIG_CGROUP_FREEZER) += legacy_freezer.o
obj-$(CONFIG_CGROUP_PIDS) += pids.o
obj-$(CONFIG_CGROUP_RDMA) += rdma.o
obj-$(CONFIG_CPUSETS) += cpuset.o
diff --git a/kernel/cgroup/cgroup-internal.h b/kernel/cgroup/cgroup-internal.h
index 75568fc..92717bb 100644
--- a/kernel/cgroup/cgroup-internal.h
+++ b/kernel/cgroup/cgroup-internal.h
@@ -196,7 +196,7 @@ int cgroup_path_ns_locked(struct cgroup *cgrp, char *buf, size_t buflen,
void cgroup_free_root(struct cgroup_root *root);
void init_cgroup_root(struct cgroup_root *root, struct cgroup_sb_opts *opts);
-int cgroup_setup_root(struct cgroup_root *root, u16 ss_mask, int ref_flags);
+int cgroup_setup_root(struct cgroup_root *root, u16 ss_mask);
int rebind_subsystems(struct cgroup_root *dst_root, u16 ss_mask);
struct dentry *cgroup_do_mount(struct file_system_type *fs_type, int flags,
struct cgroup_root *root, unsigned long magic,
@@ -224,6 +224,7 @@ int cgroup_rmdir(struct kernfs_node *kn);
int cgroup_show_path(struct seq_file *sf, struct kernfs_node *kf_node,
struct kernfs_root *kf_root);
+int __cgroup_task_count(const struct cgroup *cgrp);
int cgroup_task_count(const struct cgroup *cgrp);
/*
diff --git a/kernel/cgroup/cgroup-v1.c b/kernel/cgroup/cgroup-v1.c
index 5456611..9bcc3c1 100644
--- a/kernel/cgroup/cgroup-v1.c
+++ b/kernel/cgroup/cgroup-v1.c
@@ -27,6 +27,9 @@
/* Controllers blocked by the commandline in v1 */
static u16 cgroup_no_v1_mask;
+/* disable named v1 mounts */
+static bool cgroup_no_v1_named;
+
/*
* pidlist destructions need to be flushed on cgroup destruction. Use a
* separate workqueue as flush domain.
@@ -336,22 +339,6 @@ static struct cgroup_pidlist *cgroup_pidlist_find_create(struct cgroup *cgrp,
return l;
}
-/**
- * cgroup_task_count - count the number of tasks in a cgroup.
- * @cgrp: the cgroup in question
- */
-int cgroup_task_count(const struct cgroup *cgrp)
-{
- int count = 0;
- struct cgrp_cset_link *link;
-
- spin_lock_irq(&css_set_lock);
- list_for_each_entry(link, &cgrp->cset_links, cset_link)
- count += link->cset->nr_tasks;
- spin_unlock_irq(&css_set_lock);
- return count;
-}
-
/*
* Load a cgroup's pidarray with either procs' tgids or tasks' pids
*/
@@ -542,7 +529,8 @@ static ssize_t __cgroup1_procs_write(struct kernfs_open_file *of,
tcred = get_task_cred(task);
if (!uid_eq(cred->euid, GLOBAL_ROOT_UID) &&
!uid_eq(cred->euid, tcred->uid) &&
- !uid_eq(cred->euid, tcred->suid))
+ !uid_eq(cred->euid, tcred->suid) &&
+ !ns_capable(tcred->user_ns, CAP_SYS_NICE))
ret = -EACCES;
put_cred(tcred);
if (ret)
@@ -968,6 +956,10 @@ static int parse_cgroupfs_options(char *data, struct cgroup_sb_opts *opts)
}
if (!strncmp(token, "name=", 5)) {
const char *name = token + 5;
+
+ /* blocked by boot param? */
+ if (cgroup_no_v1_named)
+ return -ENOENT;
/* Can't specify an empty name */
if (!strlen(name))
return -EINVAL;
@@ -1114,13 +1106,11 @@ struct dentry *cgroup1_mount(struct file_system_type *fs_type, int flags,
void *data, unsigned long magic,
struct cgroup_namespace *ns)
{
- struct super_block *pinned_sb = NULL;
struct cgroup_sb_opts opts;
struct cgroup_root *root;
struct cgroup_subsys *ss;
struct dentry *dentry;
int i, ret;
- bool new_root = false;
cgroup_lock_and_drain_offline(&cgrp_dfl_root.cgrp);
@@ -1182,29 +1172,6 @@ struct dentry *cgroup1_mount(struct file_system_type *fs_type, int flags,
if (root->flags ^ opts.flags)
pr_warn("new mount options do not match the existing superblock, will be ignored\n");
- /*
- * We want to reuse @root whose lifetime is governed by its
- * ->cgrp. Let's check whether @root is alive and keep it
- * that way. As cgroup_kill_sb() can happen anytime, we
- * want to block it by pinning the sb so that @root doesn't
- * get killed before mount is complete.
- *
- * With the sb pinned, tryget_live can reliably indicate
- * whether @root can be reused. If it's being killed,
- * drain it. We can use wait_queue for the wait but this
- * path is super cold. Let's just sleep a bit and retry.
- */
- pinned_sb = kernfs_pin_sb(root->kf_root, NULL);
- if (IS_ERR(pinned_sb) ||
- !percpu_ref_tryget_live(&root->cgrp.self.refcnt)) {
- mutex_unlock(&cgroup_mutex);
- if (!IS_ERR_OR_NULL(pinned_sb))
- deactivate_super(pinned_sb);
- msleep(10);
- ret = restart_syscall();
- goto out_free;
- }
-
ret = 0;
goto out_unlock;
}
@@ -1230,15 +1197,20 @@ struct dentry *cgroup1_mount(struct file_system_type *fs_type, int flags,
ret = -ENOMEM;
goto out_unlock;
}
- new_root = true;
init_cgroup_root(root, &opts);
- ret = cgroup_setup_root(root, opts.subsys_mask, PERCPU_REF_INIT_DEAD);
+ ret = cgroup_setup_root(root, opts.subsys_mask);
if (ret)
cgroup_free_root(root);
out_unlock:
+ if (!ret && !percpu_ref_tryget_live(&root->cgrp.self.refcnt)) {
+ mutex_unlock(&cgroup_mutex);
+ msleep(10);
+ ret = restart_syscall();
+ goto out_free;
+ }
mutex_unlock(&cgroup_mutex);
out_free:
kfree(opts.release_agent);
@@ -1250,25 +1222,13 @@ struct dentry *cgroup1_mount(struct file_system_type *fs_type, int flags,
dentry = cgroup_do_mount(&cgroup_fs_type, flags, root,
CGROUP_SUPER_MAGIC, ns);
- /*
- * There's a race window after we release cgroup_mutex and before
- * allocating a superblock. Make sure a concurrent process won't
- * be able to re-use the root during this window by delaying the
- * initialization of root refcnt.
- */
- if (new_root) {
- mutex_lock(&cgroup_mutex);
- percpu_ref_reinit(&root->cgrp.self.refcnt);
- mutex_unlock(&cgroup_mutex);
+ if (!IS_ERR(dentry) && percpu_ref_is_dying(&root->cgrp.self.refcnt)) {
+ struct super_block *sb = dentry->d_sb;
+ dput(dentry);
+ deactivate_locked_super(sb);
+ msleep(10);
+ dentry = ERR_PTR(restart_syscall());
}
-
- /*
- * If @pinned_sb, we're reusing an existing root and holding an
- * extra ref on its sb. Mount is complete. Put the extra ref.
- */
- if (pinned_sb)
- deactivate_super(pinned_sb);
-
return dentry;
}
@@ -1297,7 +1257,12 @@ static int __init cgroup_no_v1(char *str)
if (!strcmp(token, "all")) {
cgroup_no_v1_mask = U16_MAX;
- break;
+ continue;
+ }
+
+ if (!strcmp(token, "named")) {
+ cgroup_no_v1_named = true;
+ continue;
}
for_each_subsys(ss, i) {
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index a7454969..9fb4f2f 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -55,6 +55,7 @@
#include <linux/nsproxy.h>
#include <linux/file.h>
#include <linux/sched/cputime.h>
+#include <linux/psi.h>
#include <net/sock.h>
#define CREATE_TRACE_POINTS
@@ -210,6 +211,22 @@ struct cgroup_namespace init_cgroup_ns = {
static struct file_system_type cgroup2_fs_type;
static struct cftype cgroup_base_files[];
+/* cgroup optional features */
+enum cgroup_opt_features {
+#ifdef CONFIG_PSI
+ OPT_FEATURE_PRESSURE,
+#endif
+ OPT_FEATURE_COUNT
+};
+
+static const char *cgroup_opt_feature_names[OPT_FEATURE_COUNT] = {
+#ifdef CONFIG_PSI
+ "pressure",
+#endif
+};
+
+static u16 cgroup_feature_disable_mask __read_mostly;
+
static int cgroup_apply_control(struct cgroup *cgrp);
static void cgroup_finalize_control(struct cgroup *cgrp, int ret);
static void css_task_iter_skip(struct css_task_iter *it,
@@ -562,6 +579,39 @@ static void cgroup_get_live(struct cgroup *cgrp)
css_get(&cgrp->self);
}
+/**
+ * __cgroup_task_count - count the number of tasks in a cgroup. The caller
+ * is responsible for taking the css_set_lock.
+ * @cgrp: the cgroup in question
+ */
+int __cgroup_task_count(const struct cgroup *cgrp)
+{
+ int count = 0;
+ struct cgrp_cset_link *link;
+
+ lockdep_assert_held(&css_set_lock);
+
+ list_for_each_entry(link, &cgrp->cset_links, cset_link)
+ count += link->cset->nr_tasks;
+
+ return count;
+}
+
+/**
+ * cgroup_task_count - count the number of tasks in a cgroup.
+ * @cgrp: the cgroup in question
+ */
+int cgroup_task_count(const struct cgroup *cgrp)
+{
+ int count;
+
+ spin_lock_irq(&css_set_lock);
+ count = __cgroup_task_count(cgrp);
+ spin_unlock_irq(&css_set_lock);
+
+ return count;
+}
+
struct cgroup_subsys_state *of_css(struct kernfs_open_file *of)
{
struct cgroup *cgrp = of->kn->parent->priv;
@@ -836,7 +886,7 @@ static void css_set_move_task(struct task_struct *task,
*/
WARN_ON_ONCE(task->flags & PF_EXITING);
- rcu_assign_pointer(task->cgroups, to_cset);
+ cgroup_move_task(task, to_cset);
list_add_tail(&task->cg_list, use_mg_tasks ? &to_cset->mg_tasks :
&to_cset->tasks);
}
@@ -1897,7 +1947,7 @@ void init_cgroup_root(struct cgroup_root *root, struct cgroup_sb_opts *opts)
set_bit(CGRP_CPUSET_CLONE_CHILDREN, &root->cgrp.flags);
}
-int cgroup_setup_root(struct cgroup_root *root, u16 ss_mask, int ref_flags)
+int cgroup_setup_root(struct cgroup_root *root, u16 ss_mask)
{
LIST_HEAD(tmp_links);
struct cgroup *root_cgrp = &root->cgrp;
@@ -1914,7 +1964,7 @@ int cgroup_setup_root(struct cgroup_root *root, u16 ss_mask, int ref_flags)
root_cgrp->ancestor_ids[0] = ret;
ret = percpu_ref_init(&root_cgrp->self.refcnt, css_release,
- ref_flags, GFP_KERNEL);
+ 0, GFP_KERNEL);
if (ret)
goto out;
@@ -2091,18 +2141,16 @@ static void cgroup_kill_sb(struct super_block *sb)
struct cgroup_root *root = cgroup_root_from_kf(kf_root);
/*
- * If @root doesn't have any mounts or children, start killing it.
+ * If @root doesn't have any children, start killing it.
* This prevents new mounts by disabling percpu_ref_tryget_live().
* cgroup_mount() may wait for @root's release.
*
* And don't kill the default root.
*/
- if (!list_empty(&root->cgrp.self.children) ||
- root == &cgrp_dfl_root)
- cgroup_put(&root->cgrp);
- else
+ if (list_empty(&root->cgrp.self.children) && root != &cgrp_dfl_root &&
+ !percpu_ref_is_dying(&root->cgrp.self.refcnt))
percpu_ref_kill(&root->cgrp.self.refcnt);
-
+ cgroup_put(&root->cgrp);
kernfs_kill_sb(sb);
}
@@ -2331,8 +2379,15 @@ static int cgroup_migrate_execute(struct cgroup_mgctx *mgctx)
get_css_set(to_cset);
to_cset->nr_tasks++;
css_set_move_task(task, from_cset, to_cset, true);
- put_css_set_locked(from_cset);
from_cset->nr_tasks--;
+ /*
+ * If the source or destination cgroup is frozen,
+ * the task might require to change its state.
+ */
+ cgroup_freezer_migrate_task(task, from_cset->dfl_cgrp,
+ to_cset->dfl_cgrp);
+ put_css_set_locked(from_cset);
+
}
}
spin_unlock_irq(&css_set_lock);
@@ -2531,7 +2586,7 @@ int cgroup_migrate_prepare_dst(struct cgroup_mgctx *mgctx)
dst_cset = find_css_set(src_cset, src_cset->mg_dst_cgrp);
if (!dst_cset)
- goto err;
+ return -ENOMEM;
WARN_ON_ONCE(src_cset->mg_dst_cset || dst_cset->mg_dst_cset);
@@ -2563,9 +2618,6 @@ int cgroup_migrate_prepare_dst(struct cgroup_mgctx *mgctx)
}
return 0;
-err:
- cgroup_migrate_finish(mgctx);
- return -ENOMEM;
}
/**
@@ -3377,8 +3429,11 @@ static ssize_t cgroup_max_depth_write(struct kernfs_open_file *of,
static int cgroup_events_show(struct seq_file *seq, void *v)
{
- seq_printf(seq, "populated %d\n",
- cgroup_is_populated(seq_css(seq)->cgroup));
+ struct cgroup *cgrp = seq_css(seq)->cgroup;
+
+ seq_printf(seq, "populated %d\n", cgroup_is_populated(cgrp));
+ seq_printf(seq, "frozen %d\n", test_bit(CGRP_FROZEN, &cgrp->flags));
+
return 0;
}
@@ -3425,6 +3480,125 @@ static int cpu_stat_show(struct seq_file *seq, void *v)
return ret;
}
+#ifdef CONFIG_PSI
+static int cgroup_io_pressure_show(struct seq_file *seq, void *v)
+{
+ return psi_show(seq, &seq_css(seq)->cgroup->psi, PSI_IO);
+}
+static int cgroup_memory_pressure_show(struct seq_file *seq, void *v)
+{
+ return psi_show(seq, &seq_css(seq)->cgroup->psi, PSI_MEM);
+}
+static int cgroup_cpu_pressure_show(struct seq_file *seq, void *v)
+{
+ return psi_show(seq, &seq_css(seq)->cgroup->psi, PSI_CPU);
+}
+
+static ssize_t cgroup_pressure_write(struct kernfs_open_file *of, char *buf,
+ size_t nbytes, enum psi_res res)
+{
+ struct psi_trigger *new;
+ struct cgroup *cgrp;
+
+ cgrp = cgroup_kn_lock_live(of->kn, false);
+ if (!cgrp)
+ return -ENODEV;
+
+ cgroup_get(cgrp);
+ cgroup_kn_unlock(of->kn);
+
+ new = psi_trigger_create(&cgrp->psi, buf, nbytes, res);
+ if (IS_ERR(new)) {
+ cgroup_put(cgrp);
+ return PTR_ERR(new);
+ }
+
+ psi_trigger_replace(&of->priv, new);
+
+ cgroup_put(cgrp);
+
+ return nbytes;
+}
+
+static ssize_t cgroup_io_pressure_write(struct kernfs_open_file *of,
+ char *buf, size_t nbytes,
+ loff_t off)
+{
+ return cgroup_pressure_write(of, buf, nbytes, PSI_IO);
+}
+
+static ssize_t cgroup_memory_pressure_write(struct kernfs_open_file *of,
+ char *buf, size_t nbytes,
+ loff_t off)
+{
+ return cgroup_pressure_write(of, buf, nbytes, PSI_MEM);
+}
+
+static ssize_t cgroup_cpu_pressure_write(struct kernfs_open_file *of,
+ char *buf, size_t nbytes,
+ loff_t off)
+{
+ return cgroup_pressure_write(of, buf, nbytes, PSI_CPU);
+}
+
+static __poll_t cgroup_pressure_poll(struct kernfs_open_file *of,
+ poll_table *pt)
+{
+ return psi_trigger_poll(&of->priv, of->file, pt);
+}
+
+static void cgroup_pressure_release(struct kernfs_open_file *of)
+{
+ psi_trigger_replace(&of->priv, NULL);
+}
+
+bool cgroup_psi_enabled(void)
+{
+ return (cgroup_feature_disable_mask & (1 << OPT_FEATURE_PRESSURE)) == 0;
+}
+
+#else /* CONFIG_PSI */
+bool cgroup_psi_enabled(void)
+{
+ return false;
+}
+
+#endif /* CONFIG_PSI */
+
+static int cgroup_freeze_show(struct seq_file *seq, void *v)
+{
+ struct cgroup *cgrp = seq_css(seq)->cgroup;
+
+ seq_printf(seq, "%d\n", cgrp->freezer.freeze);
+
+ return 0;
+}
+
+static ssize_t cgroup_freeze_write(struct kernfs_open_file *of,
+ char *buf, size_t nbytes, loff_t off)
+{
+ struct cgroup *cgrp;
+ ssize_t ret;
+ int freeze;
+
+ ret = kstrtoint(strstrip(buf), 0, &freeze);
+ if (ret)
+ return ret;
+
+ if (freeze < 0 || freeze > 1)
+ return -ERANGE;
+
+ cgrp = cgroup_kn_lock_live(of->kn, false);
+ if (!cgrp)
+ return -ENOENT;
+
+ cgroup_freeze(cgrp, freeze);
+
+ cgroup_kn_unlock(of->kn);
+
+ return nbytes;
+}
+
static int cgroup_file_open(struct kernfs_open_file *of)
{
struct cftype *cft = of->kn->priv;
@@ -3492,6 +3666,16 @@ static ssize_t cgroup_file_write(struct kernfs_open_file *of, char *buf,
return ret ?: nbytes;
}
+static __poll_t cgroup_file_poll(struct kernfs_open_file *of, poll_table *pt)
+{
+ struct cftype *cft = of->kn->priv;
+
+ if (cft->poll)
+ return cft->poll(of, pt);
+
+ return kernfs_generic_poll(of, pt);
+}
+
static void *cgroup_seqfile_start(struct seq_file *seq, loff_t *ppos)
{
return seq_cft(seq)->seq_start(seq, ppos);
@@ -3530,6 +3714,7 @@ static struct kernfs_ops cgroup_kf_single_ops = {
.open = cgroup_file_open,
.release = cgroup_file_release,
.write = cgroup_file_write,
+ .poll = cgroup_file_poll,
.seq_show = cgroup_seqfile_show,
};
@@ -3538,6 +3723,7 @@ static struct kernfs_ops cgroup_kf_ops = {
.open = cgroup_file_open,
.release = cgroup_file_release,
.write = cgroup_file_write,
+ .poll = cgroup_file_poll,
.seq_start = cgroup_seqfile_start,
.seq_next = cgroup_seqfile_next,
.seq_stop = cgroup_seqfile_stop,
@@ -3624,6 +3810,8 @@ static int cgroup_addrm_files(struct cgroup_subsys_state *css,
restart:
for (cft = cfts; cft != cft_end && cft->name[0] != '\0'; cft++) {
/* does cft->flags tell us to skip this file on @cgrp? */
+ if ((cft->flags & CFTYPE_PRESSURE) && !cgroup_psi_enabled())
+ continue;
if ((cft->flags & __CFTYPE_ONLY_ON_DFL) && !cgroup_on_dfl(cgrp))
continue;
if ((cft->flags & __CFTYPE_NOT_ON_DFL) && cgroup_on_dfl(cgrp))
@@ -3700,6 +3888,9 @@ static int cgroup_init_cftypes(struct cgroup_subsys *ss, struct cftype *cfts)
WARN_ON(cft->ss || cft->kf_ops);
+ if ((cft->flags & CFTYPE_PRESSURE) && !cgroup_psi_enabled())
+ continue;
+
if (cft->seq_start)
kf_ops = &cgroup_kf_ops;
else
@@ -4602,10 +4793,42 @@ static struct cftype cgroup_base_files[] = {
.seq_show = cgroup_stat_show,
},
{
+ .name = "cgroup.freeze",
+ .flags = CFTYPE_NOT_ON_ROOT,
+ .seq_show = cgroup_freeze_show,
+ .write = cgroup_freeze_write,
+ },
+ {
.name = "cpu.stat",
.flags = CFTYPE_NOT_ON_ROOT,
.seq_show = cpu_stat_show,
},
+#ifdef CONFIG_PSI
+ {
+ .name = "io.pressure",
+ .flags = CFTYPE_NOT_ON_ROOT | CFTYPE_PRESSURE,
+ .seq_show = cgroup_io_pressure_show,
+ .write = cgroup_io_pressure_write,
+ .poll = cgroup_pressure_poll,
+ .release = cgroup_pressure_release,
+ },
+ {
+ .name = "memory.pressure",
+ .flags = CFTYPE_NOT_ON_ROOT | CFTYPE_PRESSURE,
+ .seq_show = cgroup_memory_pressure_show,
+ .write = cgroup_memory_pressure_write,
+ .poll = cgroup_pressure_poll,
+ .release = cgroup_pressure_release,
+ },
+ {
+ .name = "cpu.pressure",
+ .flags = CFTYPE_NOT_ON_ROOT | CFTYPE_PRESSURE,
+ .seq_show = cgroup_cpu_pressure_show,
+ .write = cgroup_cpu_pressure_write,
+ .poll = cgroup_pressure_poll,
+ .release = cgroup_pressure_release,
+ },
+#endif /* CONFIG_PSI */
{ } /* terminate */
};
@@ -4666,6 +4889,7 @@ static void css_free_rwork_fn(struct work_struct *work)
*/
cgroup_put(cgroup_parent(cgrp));
kernfs_put(cgrp->kn);
+ psi_cgroup_free(cgrp);
if (cgroup_on_dfl(cgrp))
cgroup_rstat_exit(cgrp);
kfree(cgrp);
@@ -4924,16 +5148,46 @@ static struct cgroup *cgroup_create(struct cgroup *parent)
cgrp->self.parent = &parent->self;
cgrp->root = root;
cgrp->level = level;
- ret = cgroup_bpf_inherit(cgrp);
+
+ ret = psi_cgroup_alloc(cgrp);
if (ret)
goto out_idr_free;
+ ret = cgroup_bpf_inherit(cgrp);
+ if (ret)
+ goto out_psi_free;
+
+ /*
+ * New cgroup inherits effective freeze counter, and
+ * if the parent has to be frozen, the child has too.
+ */
+ cgrp->freezer.e_freeze = parent->freezer.e_freeze;
+ if (cgrp->freezer.e_freeze) {
+ /*
+ * Set the CGRP_FREEZE flag, so when a process will be
+ * attached to the child cgroup, it will become frozen.
+ * At this point the new cgroup is unpopulated, so we can
+ * consider it frozen immediately.
+ */
+ set_bit(CGRP_FREEZE, &cgrp->flags);
+ set_bit(CGRP_FROZEN, &cgrp->flags);
+ }
+
spin_lock_irq(&css_set_lock);
for (tcgrp = cgrp; tcgrp; tcgrp = cgroup_parent(tcgrp)) {
cgrp->ancestor_ids[tcgrp->level] = tcgrp->id;
- if (tcgrp != cgrp)
+ if (tcgrp != cgrp) {
tcgrp->nr_descendants++;
+
+ /*
+ * If the new cgroup is frozen, all ancestor cgroups
+ * get a new frozen descendant, but their state can't
+ * change because of this.
+ */
+ if (cgrp->freezer.e_freeze)
+ tcgrp->freezer.nr_frozen_descendants++;
+ }
}
spin_unlock_irq(&css_set_lock);
@@ -4967,6 +5221,8 @@ static struct cgroup *cgroup_create(struct cgroup *parent)
return cgrp;
+out_psi_free:
+ psi_cgroup_free(cgrp);
out_idr_free:
cgroup_idr_remove(&root->cgroup_idr, cgrp->id);
out_stat_exit:
@@ -5222,6 +5478,12 @@ static int cgroup_destroy_locked(struct cgroup *cgrp)
for (tcgrp = cgroup_parent(cgrp); tcgrp; tcgrp = cgroup_parent(tcgrp)) {
tcgrp->nr_descendants--;
tcgrp->nr_dying_descendants++;
+ /*
+ * If the dying cgroup is frozen, decrease frozen descendants
+ * counters of ancestor cgroups.
+ */
+ if (test_bit(CGRP_FROZEN, &cgrp->flags))
+ tcgrp->freezer.nr_frozen_descendants--;
}
spin_unlock_irq(&css_set_lock);
@@ -5382,7 +5644,7 @@ int __init cgroup_init(void)
hash_add(css_set_table, &init_css_set.hlist,
css_set_hash(init_css_set.subsys));
- BUG_ON(cgroup_setup_root(&cgrp_dfl_root, 0, 0));
+ BUG_ON(cgroup_setup_root(&cgrp_dfl_root, 0));
mutex_unlock(&cgroup_mutex);
@@ -5669,6 +5931,26 @@ void cgroup_post_fork(struct task_struct *child)
cset->nr_tasks++;
css_set_move_task(child, NULL, cset, false);
}
+
+ /*
+ * If the cgroup has to be frozen, the new task has too.
+ * Let's set the JOBCTL_TRAP_FREEZE jobctl bit to get
+ * the task into the frozen state.
+ */
+ if (unlikely(cgroup_task_freeze(child))) {
+ spin_lock(&child->sighand->siglock);
+ WARN_ON_ONCE(child->frozen);
+ child->jobctl |= JOBCTL_TRAP_FREEZE;
+ spin_unlock(&child->sighand->siglock);
+
+ /*
+ * Calling cgroup_update_frozen() isn't required here,
+ * because it will be called anyway a bit later
+ * from do_freezer_trap(). So we avoid cgroup's
+ * transient switch from the frozen state and back.
+ */
+ }
+
spin_unlock_irq(&css_set_lock);
}
@@ -5718,6 +6000,12 @@ void cgroup_exit(struct task_struct *tsk)
css_set_move_task(tsk, cset, NULL, false);
list_add_tail(&tsk->cg_list, &cset->dying_tasks);
cset->nr_tasks--;
+
+ if (unlikely(cgroup_task_frozen(tsk)))
+ cgroup_freezer_frozen_exit(tsk);
+ else if (unlikely(cgroup_task_freeze(tsk)))
+ cgroup_update_frozen(task_dfl_cgroup(tsk));
+
spin_unlock_irq(&css_set_lock);
} else {
get_css_set(cset);
@@ -5771,6 +6059,15 @@ static int __init cgroup_disable(char *str)
pr_info("Disabling %s control group subsystem\n",
ss->name);
}
+
+ for (i = 0; i < OPT_FEATURE_COUNT; i++) {
+ if (strcmp(token, cgroup_opt_feature_names[i]))
+ continue;
+ cgroup_feature_disable_mask |= 1 << i;
+ pr_info("Disabling %s control group feature\n",
+ cgroup_opt_feature_names[i]);
+ break;
+ }
}
return 1;
}
@@ -5898,6 +6195,48 @@ struct cgroup *cgroup_get_from_fd(int fd)
}
EXPORT_SYMBOL_GPL(cgroup_get_from_fd);
+static u64 power_of_ten(int power)
+{
+ u64 v = 1;
+ while (power--)
+ v *= 10;
+ return v;
+}
+
+/**
+ * cgroup_parse_float - parse a floating number
+ * @input: input string
+ * @dec_shift: number of decimal digits to shift
+ * @v: output
+ *
+ * Parse a decimal floating point number in @input and store the result in
+ * @v with decimal point right shifted @dec_shift times. For example, if
+ * @input is "12.3456" and @dec_shift is 3, *@v will be set to 12345.
+ * Returns 0 on success, -errno otherwise.
+ *
+ * There's nothing cgroup specific about this function except that it's
+ * currently the only user.
+ */
+int cgroup_parse_float(const char *input, unsigned dec_shift, s64 *v)
+{
+ s64 whole, frac = 0;
+ int fstart = 0, fend = 0, flen;
+
+ if (!sscanf(input, "%lld.%n%lld%n", &whole, &fstart, &frac, &fend))
+ return -EINVAL;
+ if (frac < 0)
+ return -EINVAL;
+
+ flen = fend > fstart ? fend - fstart : 0;
+ if (flen < dec_shift)
+ frac *= power_of_ten(dec_shift - flen);
+ else
+ frac = DIV_ROUND_CLOSEST_ULL(frac, power_of_ten(flen - dec_shift));
+
+ *v = whole * power_of_ten(dec_shift) + frac;
+ return 0;
+}
+
/*
* sock->sk_cgrp_data handling. For more info, see sock_cgroup_data
* definition in cgroup-defs.h.
@@ -6019,15 +6358,16 @@ static ssize_t show_delegatable_files(struct cftype *files, char *buf,
if (!(cft->flags & CFTYPE_NS_DELEGATABLE))
continue;
+ if ((cft->flags & CFTYPE_PRESSURE) && !cgroup_psi_enabled())
+ continue;
+
if (prefix)
ret += snprintf(buf + ret, size - ret, "%s.", prefix);
ret += snprintf(buf + ret, size - ret, "%s\n", cft->name);
- if (unlikely(ret >= size)) {
- WARN_ON(1);
+ if (WARN_ON(ret >= size))
break;
- }
}
return ret;
@@ -6075,4 +6415,5 @@ static int __init cgroup_sysfs_init(void)
return sysfs_create_group(kernel_kobj, &cgroup_sysfs_attr_group);
}
subsys_initcall(cgroup_sysfs_init);
+
#endif /* CONFIG_SYSFS */
diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c
index ff956cc..d50a89c 100644
--- a/kernel/cgroup/cpuset.c
+++ b/kernel/cgroup/cpuset.c
@@ -103,6 +103,7 @@ struct cpuset {
/* user-configured CPUs and Memory Nodes allow to tasks */
cpumask_var_t cpus_allowed;
+ cpumask_var_t cpus_requested;
nodemask_t mems_allowed;
/* effective CPUs and Memory Nodes allow to tasks */
@@ -412,7 +413,7 @@ static void cpuset_update_task_spread_flag(struct cpuset *cs,
static int is_cpuset_subset(const struct cpuset *p, const struct cpuset *q)
{
- return cpumask_subset(p->cpus_allowed, q->cpus_allowed) &&
+ return cpumask_subset(p->cpus_requested, q->cpus_requested) &&
nodes_subset(p->mems_allowed, q->mems_allowed) &&
is_cpu_exclusive(p) <= is_cpu_exclusive(q) &&
is_mem_exclusive(p) <= is_mem_exclusive(q);
@@ -432,14 +433,19 @@ static struct cpuset *alloc_trial_cpuset(struct cpuset *cs)
if (!alloc_cpumask_var(&trial->cpus_allowed, GFP_KERNEL))
goto free_cs;
+ if (!alloc_cpumask_var(&trial->cpus_requested, GFP_KERNEL))
+ goto free_allowed;
if (!alloc_cpumask_var(&trial->effective_cpus, GFP_KERNEL))
goto free_cpus;
cpumask_copy(trial->cpus_allowed, cs->cpus_allowed);
+ cpumask_copy(trial->cpus_requested, cs->cpus_requested);
cpumask_copy(trial->effective_cpus, cs->effective_cpus);
return trial;
free_cpus:
+ free_cpumask_var(trial->cpus_requested);
+free_allowed:
free_cpumask_var(trial->cpus_allowed);
free_cs:
kfree(trial);
@@ -453,6 +459,7 @@ static struct cpuset *alloc_trial_cpuset(struct cpuset *cs)
static void free_trial_cpuset(struct cpuset *trial)
{
free_cpumask_var(trial->effective_cpus);
+ free_cpumask_var(trial->cpus_requested);
free_cpumask_var(trial->cpus_allowed);
kfree(trial);
}
@@ -511,7 +518,7 @@ static int validate_change(struct cpuset *cur, struct cpuset *trial)
cpuset_for_each_child(c, css, par) {
if ((is_cpu_exclusive(trial) || is_cpu_exclusive(c)) &&
c != cur &&
- cpumask_intersects(trial->cpus_allowed, c->cpus_allowed))
+ cpumask_intersects(trial->cpus_requested, c->cpus_requested))
goto out;
if ((is_mem_exclusive(trial) || is_mem_exclusive(c)) &&
c != cur &&
@@ -964,25 +971,26 @@ static int update_cpumask(struct cpuset *cs, struct cpuset *trialcs,
return -EACCES;
/*
- * An empty cpus_allowed is ok only if the cpuset has no tasks.
+ * An empty cpus_requested is ok only if the cpuset has no tasks.
* Since cpulist_parse() fails on an empty mask, we special case
* that parsing. The validate_change() call ensures that cpusets
* with tasks have cpus.
*/
if (!*buf) {
- cpumask_clear(trialcs->cpus_allowed);
+ cpumask_clear(trialcs->cpus_requested);
} else {
- retval = cpulist_parse(buf, trialcs->cpus_allowed);
+ retval = cpulist_parse(buf, trialcs->cpus_requested);
if (retval < 0)
return retval;
-
- if (!cpumask_subset(trialcs->cpus_allowed,
- top_cpuset.cpus_allowed))
- return -EINVAL;
}
+ if (!cpumask_subset(trialcs->cpus_requested, cpu_present_mask))
+ return -EINVAL;
+
+ cpumask_and(trialcs->cpus_allowed, trialcs->cpus_requested, cpu_active_mask);
+
/* Nothing to do if the cpus didn't change */
- if (cpumask_equal(cs->cpus_allowed, trialcs->cpus_allowed))
+ if (cpumask_equal(cs->cpus_requested, trialcs->cpus_requested))
return 0;
retval = validate_change(cs, trialcs);
@@ -991,6 +999,7 @@ static int update_cpumask(struct cpuset *cs, struct cpuset *trialcs,
spin_lock_irq(&callback_lock);
cpumask_copy(cs->cpus_allowed, trialcs->cpus_allowed);
+ cpumask_copy(cs->cpus_requested, trialcs->cpus_requested);
spin_unlock_irq(&callback_lock);
/* use trialcs->cpus_allowed as a temp variable */
@@ -1759,7 +1768,7 @@ static int cpuset_common_seq_show(struct seq_file *sf, void *v)
switch (type) {
case FILE_CPULIST:
- seq_printf(sf, "%*pbl\n", cpumask_pr_args(cs->cpus_allowed));
+ seq_printf(sf, "%*pbl\n", cpumask_pr_args(cs->cpus_requested));
break;
case FILE_MEMLIST:
seq_printf(sf, "%*pbl\n", nodemask_pr_args(&cs->mems_allowed));
@@ -1949,11 +1958,14 @@ cpuset_css_alloc(struct cgroup_subsys_state *parent_css)
return ERR_PTR(-ENOMEM);
if (!alloc_cpumask_var(&cs->cpus_allowed, GFP_KERNEL))
goto free_cs;
+ if (!alloc_cpumask_var(&cs->cpus_requested, GFP_KERNEL))
+ goto free_allowed;
if (!alloc_cpumask_var(&cs->effective_cpus, GFP_KERNEL))
- goto free_cpus;
+ goto free_requested;
set_bit(CS_SCHED_LOAD_BALANCE, &cs->flags);
cpumask_clear(cs->cpus_allowed);
+ cpumask_clear(cs->cpus_requested);
nodes_clear(cs->mems_allowed);
cpumask_clear(cs->effective_cpus);
nodes_clear(cs->effective_mems);
@@ -1962,7 +1974,9 @@ cpuset_css_alloc(struct cgroup_subsys_state *parent_css)
return &cs->css;
-free_cpus:
+free_requested:
+ free_cpumask_var(cs->cpus_requested);
+free_allowed:
free_cpumask_var(cs->cpus_allowed);
free_cs:
kfree(cs);
@@ -2025,6 +2039,7 @@ static int cpuset_css_online(struct cgroup_subsys_state *css)
cs->mems_allowed = parent->mems_allowed;
cs->effective_mems = parent->mems_allowed;
cpumask_copy(cs->cpus_allowed, parent->cpus_allowed);
+ cpumask_copy(cs->cpus_requested, parent->cpus_requested);
cpumask_copy(cs->effective_cpus, parent->cpus_allowed);
spin_unlock_irq(&callback_lock);
out_unlock:
@@ -2059,6 +2074,7 @@ static void cpuset_css_free(struct cgroup_subsys_state *css)
free_cpumask_var(cs->effective_cpus);
free_cpumask_var(cs->cpus_allowed);
+ free_cpumask_var(cs->cpus_requested);
kfree(cs);
}
@@ -2121,8 +2137,10 @@ int __init cpuset_init(void)
BUG_ON(!alloc_cpumask_var(&top_cpuset.cpus_allowed, GFP_KERNEL));
BUG_ON(!alloc_cpumask_var(&top_cpuset.effective_cpus, GFP_KERNEL));
+ BUG_ON(!alloc_cpumask_var(&top_cpuset.cpus_requested, GFP_KERNEL));
cpumask_setall(top_cpuset.cpus_allowed);
+ cpumask_setall(top_cpuset.cpus_requested);
nodes_setall(top_cpuset.mems_allowed);
cpumask_setall(top_cpuset.effective_cpus);
nodes_setall(top_cpuset.effective_mems);
@@ -2255,7 +2273,7 @@ static void cpuset_hotplug_update_tasks(struct cpuset *cs)
goto retry;
}
- cpumask_and(&new_cpus, cs->cpus_allowed, parent_cs(cs)->effective_cpus);
+ cpumask_and(&new_cpus, cs->cpus_requested, parent_cs(cs)->effective_cpus);
nodes_and(new_mems, cs->mems_allowed, parent_cs(cs)->effective_mems);
cpus_updated = !cpumask_equal(&new_cpus, cs->effective_cpus);
diff --git a/kernel/cgroup/freezer.c b/kernel/cgroup/freezer.c
index 0823679..9d8cda4 100644
--- a/kernel/cgroup/freezer.c
+++ b/kernel/cgroup/freezer.c
@@ -1,481 +1,317 @@
-/*
- * cgroup_freezer.c - control group freezer subsystem
- *
- * Copyright IBM Corporation, 2007
- *
- * Author : Cedric Le Goater <clg@fr.ibm.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2.1 of the GNU Lesser General Public License
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- */
-
-#include <linux/export.h>
-#include <linux/slab.h>
+//SPDX-License-Identifier: GPL-2.0
#include <linux/cgroup.h>
-#include <linux/fs.h>
-#include <linux/uaccess.h>
-#include <linux/freezer.h>
-#include <linux/seq_file.h>
-#include <linux/mutex.h>
+#include <linux/sched.h>
+#include <linux/sched/task.h>
+#include <linux/sched/signal.h>
+
+#include "cgroup-internal.h"
/*
- * A cgroup is freezing if any FREEZING flags are set. FREEZING_SELF is
- * set if "FROZEN" is written to freezer.state cgroupfs file, and cleared
- * for "THAWED". FREEZING_PARENT is set if the parent freezer is FREEZING
- * for whatever reason. IOW, a cgroup has FREEZING_PARENT set if one of
- * its ancestors has FREEZING_SELF set.
+ * Propagate the cgroup frozen state upwards by the cgroup tree.
*/
-enum freezer_state_flags {
- CGROUP_FREEZER_ONLINE = (1 << 0), /* freezer is fully online */
- CGROUP_FREEZING_SELF = (1 << 1), /* this freezer is freezing */
- CGROUP_FREEZING_PARENT = (1 << 2), /* the parent freezer is freezing */
- CGROUP_FROZEN = (1 << 3), /* this and its descendants frozen */
-
- /* mask for all FREEZING flags */
- CGROUP_FREEZING = CGROUP_FREEZING_SELF | CGROUP_FREEZING_PARENT,
-};
-
-struct freezer {
- struct cgroup_subsys_state css;
- unsigned int state;
-};
-
-static DEFINE_MUTEX(freezer_mutex);
-
-static inline struct freezer *css_freezer(struct cgroup_subsys_state *css)
+static void cgroup_propagate_frozen(struct cgroup *cgrp, bool frozen)
{
- return css ? container_of(css, struct freezer, css) : NULL;
-}
-
-static inline struct freezer *task_freezer(struct task_struct *task)
-{
- return css_freezer(task_css(task, freezer_cgrp_id));
-}
-
-static struct freezer *parent_freezer(struct freezer *freezer)
-{
- return css_freezer(freezer->css.parent);
-}
-
-bool cgroup_freezing(struct task_struct *task)
-{
- bool ret;
-
- rcu_read_lock();
- ret = task_freezer(task)->state & CGROUP_FREEZING;
- rcu_read_unlock();
-
- return ret;
-}
-
-static const char *freezer_state_strs(unsigned int state)
-{
- if (state & CGROUP_FROZEN)
- return "FROZEN";
- if (state & CGROUP_FREEZING)
- return "FREEZING";
- return "THAWED";
-};
-
-static struct cgroup_subsys_state *
-freezer_css_alloc(struct cgroup_subsys_state *parent_css)
-{
- struct freezer *freezer;
-
- freezer = kzalloc(sizeof(struct freezer), GFP_KERNEL);
- if (!freezer)
- return ERR_PTR(-ENOMEM);
-
- return &freezer->css;
-}
-
-/**
- * freezer_css_online - commit creation of a freezer css
- * @css: css being created
- *
- * We're committing to creation of @css. Mark it online and inherit
- * parent's freezing state while holding both parent's and our
- * freezer->lock.
- */
-static int freezer_css_online(struct cgroup_subsys_state *css)
-{
- struct freezer *freezer = css_freezer(css);
- struct freezer *parent = parent_freezer(freezer);
-
- mutex_lock(&freezer_mutex);
-
- freezer->state |= CGROUP_FREEZER_ONLINE;
-
- if (parent && (parent->state & CGROUP_FREEZING)) {
- freezer->state |= CGROUP_FREEZING_PARENT | CGROUP_FROZEN;
- atomic_inc(&system_freezing_cnt);
- }
-
- mutex_unlock(&freezer_mutex);
- return 0;
-}
-
-/**
- * freezer_css_offline - initiate destruction of a freezer css
- * @css: css being destroyed
- *
- * @css is going away. Mark it dead and decrement system_freezing_count if
- * it was holding one.
- */
-static void freezer_css_offline(struct cgroup_subsys_state *css)
-{
- struct freezer *freezer = css_freezer(css);
-
- mutex_lock(&freezer_mutex);
-
- if (freezer->state & CGROUP_FREEZING)
- atomic_dec(&system_freezing_cnt);
-
- freezer->state = 0;
-
- mutex_unlock(&freezer_mutex);
-}
-
-static void freezer_css_free(struct cgroup_subsys_state *css)
-{
- kfree(css_freezer(css));
-}
-
-/*
- * Tasks can be migrated into a different freezer anytime regardless of its
- * current state. freezer_attach() is responsible for making new tasks
- * conform to the current state.
- *
- * Freezer state changes and task migration are synchronized via
- * @freezer->lock. freezer_attach() makes the new tasks conform to the
- * current state and all following state changes can see the new tasks.
- */
-static void freezer_attach(struct cgroup_taskset *tset)
-{
- struct task_struct *task;
- struct cgroup_subsys_state *new_css;
-
- mutex_lock(&freezer_mutex);
+ int desc = 1;
/*
- * Make the new tasks conform to the current state of @new_css.
- * For simplicity, when migrating any task to a FROZEN cgroup, we
- * revert it to FREEZING and let update_if_frozen() determine the
- * correct state later.
+ * If the new state is frozen, some freezing ancestor cgroups may change
+ * their state too, depending on if all their descendants are frozen.
*
- * Tasks in @tset are on @new_css but may not conform to its
- * current state before executing the following - !frozen tasks may
- * be visible in a FROZEN cgroup and frozen tasks in a THAWED one.
+ * Otherwise, all ancestor cgroups are forced into the non-frozen state.
*/
- cgroup_taskset_for_each(task, new_css, tset) {
- struct freezer *freezer = css_freezer(new_css);
-
- if (!(freezer->state & CGROUP_FREEZING)) {
- __thaw_task(task);
+ while ((cgrp = cgroup_parent(cgrp))) {
+ if (frozen) {
+ cgrp->freezer.nr_frozen_descendants += desc;
+ if (!test_bit(CGRP_FROZEN, &cgrp->flags) &&
+ test_bit(CGRP_FREEZE, &cgrp->flags) &&
+ cgrp->freezer.nr_frozen_descendants ==
+ cgrp->nr_descendants) {
+ set_bit(CGRP_FROZEN, &cgrp->flags);
+ cgroup_file_notify(&cgrp->events_file);
+ desc++;
+ }
} else {
- freeze_task(task);
- /* clear FROZEN and propagate upwards */
- while (freezer && (freezer->state & CGROUP_FROZEN)) {
- freezer->state &= ~CGROUP_FROZEN;
- freezer = parent_freezer(freezer);
+ cgrp->freezer.nr_frozen_descendants -= desc;
+ if (test_bit(CGRP_FROZEN, &cgrp->flags)) {
+ clear_bit(CGRP_FROZEN, &cgrp->flags);
+ cgroup_file_notify(&cgrp->events_file);
+ desc++;
}
}
}
-
- mutex_unlock(&freezer_mutex);
}
-/**
- * freezer_fork - cgroup post fork callback
- * @task: a task which has just been forked
- *
- * @task has just been created and should conform to the current state of
- * the cgroup_freezer it belongs to. This function may race against
- * freezer_attach(). Losing to freezer_attach() means that we don't have
- * to do anything as freezer_attach() will put @task into the appropriate
- * state.
+/*
+ * Revisit the cgroup frozen state.
+ * Checks if the cgroup is really frozen and perform all state transitions.
*/
-static void freezer_fork(struct task_struct *task)
+void cgroup_update_frozen(struct cgroup *cgrp)
{
- struct freezer *freezer;
+ bool frozen;
+
+ lockdep_assert_held(&css_set_lock);
/*
- * The root cgroup is non-freezable, so we can skip locking the
- * freezer. This is safe regardless of race with task migration.
- * If we didn't race or won, skipping is obviously the right thing
- * to do. If we lost and root is the new cgroup, noop is still the
- * right thing to do.
+ * If the cgroup has to be frozen (CGRP_FREEZE bit set),
+ * and all tasks are frozen and/or stopped, let's consider
+ * the cgroup frozen. Otherwise it's not frozen.
*/
- if (task_css_is_root(task, freezer_cgrp_id))
- return;
+ frozen = test_bit(CGRP_FREEZE, &cgrp->flags) &&
+ cgrp->freezer.nr_frozen_tasks == __cgroup_task_count(cgrp);
- mutex_lock(&freezer_mutex);
- rcu_read_lock();
-
- freezer = task_freezer(task);
- if (freezer->state & CGROUP_FREEZING)
- freeze_task(task);
-
- rcu_read_unlock();
- mutex_unlock(&freezer_mutex);
-}
-
-/**
- * update_if_frozen - update whether a cgroup finished freezing
- * @css: css of interest
- *
- * Once FREEZING is initiated, transition to FROZEN is lazily updated by
- * calling this function. If the current state is FREEZING but not FROZEN,
- * this function checks whether all tasks of this cgroup and the descendant
- * cgroups finished freezing and, if so, sets FROZEN.
- *
- * The caller is responsible for grabbing RCU read lock and calling
- * update_if_frozen() on all descendants prior to invoking this function.
- *
- * Task states and freezer state might disagree while tasks are being
- * migrated into or out of @css, so we can't verify task states against
- * @freezer state here. See freezer_attach() for details.
- */
-static void update_if_frozen(struct cgroup_subsys_state *css)
-{
- struct freezer *freezer = css_freezer(css);
- struct cgroup_subsys_state *pos;
- struct css_task_iter it;
- struct task_struct *task;
-
- lockdep_assert_held(&freezer_mutex);
-
- if (!(freezer->state & CGROUP_FREEZING) ||
- (freezer->state & CGROUP_FROZEN))
- return;
-
- /* are all (live) children frozen? */
- rcu_read_lock();
- css_for_each_child(pos, css) {
- struct freezer *child = css_freezer(pos);
-
- if ((child->state & CGROUP_FREEZER_ONLINE) &&
- !(child->state & CGROUP_FROZEN)) {
- rcu_read_unlock();
+ if (frozen) {
+ /* Already there? */
+ if (test_bit(CGRP_FROZEN, &cgrp->flags))
return;
- }
+
+ set_bit(CGRP_FROZEN, &cgrp->flags);
+ } else {
+ /* Already there? */
+ if (!test_bit(CGRP_FROZEN, &cgrp->flags))
+ return;
+
+ clear_bit(CGRP_FROZEN, &cgrp->flags);
}
- rcu_read_unlock();
+ cgroup_file_notify(&cgrp->events_file);
- /* are all tasks frozen? */
- css_task_iter_start(css, 0, &it);
-
- while ((task = css_task_iter_next(&it))) {
- if (freezing(task)) {
- /*
- * freezer_should_skip() indicates that the task
- * should be skipped when determining freezing
- * completion. Consider it frozen in addition to
- * the usual frozen condition.
- */
- if (!frozen(task) && !freezer_should_skip(task))
- goto out_iter_end;
- }
- }
-
- freezer->state |= CGROUP_FROZEN;
-out_iter_end:
- css_task_iter_end(&it);
+ /* Update the state of ancestor cgroups. */
+ cgroup_propagate_frozen(cgrp, frozen);
}
-static int freezer_read(struct seq_file *m, void *v)
-{
- struct cgroup_subsys_state *css = seq_css(m), *pos;
-
- mutex_lock(&freezer_mutex);
- rcu_read_lock();
-
- /* update states bottom-up */
- css_for_each_descendant_post(pos, css) {
- if (!css_tryget_online(pos))
- continue;
- rcu_read_unlock();
-
- update_if_frozen(pos);
-
- rcu_read_lock();
- css_put(pos);
- }
-
- rcu_read_unlock();
- mutex_unlock(&freezer_mutex);
-
- seq_puts(m, freezer_state_strs(css_freezer(css)->state));
- seq_putc(m, '\n');
- return 0;
-}
-
-static void freeze_cgroup(struct freezer *freezer)
-{
- struct css_task_iter it;
- struct task_struct *task;
-
- css_task_iter_start(&freezer->css, 0, &it);
- while ((task = css_task_iter_next(&it)))
- freeze_task(task);
- css_task_iter_end(&it);
-}
-
-static void unfreeze_cgroup(struct freezer *freezer)
-{
- struct css_task_iter it;
- struct task_struct *task;
-
- css_task_iter_start(&freezer->css, 0, &it);
- while ((task = css_task_iter_next(&it)))
- __thaw_task(task);
- css_task_iter_end(&it);
-}
-
-/**
- * freezer_apply_state - apply state change to a single cgroup_freezer
- * @freezer: freezer to apply state change to
- * @freeze: whether to freeze or unfreeze
- * @state: CGROUP_FREEZING_* flag to set or clear
- *
- * Set or clear @state on @cgroup according to @freeze, and perform
- * freezing or thawing as necessary.
+/*
+ * Increment cgroup's nr_frozen_tasks.
*/
-static void freezer_apply_state(struct freezer *freezer, bool freeze,
- unsigned int state)
+static void cgroup_inc_frozen_cnt(struct cgroup *cgrp)
{
- /* also synchronizes against task migration, see freezer_attach() */
- lockdep_assert_held(&freezer_mutex);
+ cgrp->freezer.nr_frozen_tasks++;
+}
- if (!(freezer->state & CGROUP_FREEZER_ONLINE))
+/*
+ * Decrement cgroup's nr_frozen_tasks.
+ */
+static void cgroup_dec_frozen_cnt(struct cgroup *cgrp)
+{
+ cgrp->freezer.nr_frozen_tasks--;
+ WARN_ON_ONCE(cgrp->freezer.nr_frozen_tasks < 0);
+}
+
+/*
+ * Enter frozen/stopped state, if not yet there. Update cgroup's counters,
+ * and revisit the state of the cgroup, if necessary.
+ */
+void cgroup_enter_frozen(void)
+{
+ struct cgroup *cgrp;
+
+ if (current->frozen)
+ return;
+
+ spin_lock_irq(&css_set_lock);
+ current->frozen = true;
+ cgrp = task_dfl_cgroup(current);
+ cgroup_inc_frozen_cnt(cgrp);
+ cgroup_update_frozen(cgrp);
+ spin_unlock_irq(&css_set_lock);
+}
+
+/*
+ * Conditionally leave frozen/stopped state. Update cgroup's counters,
+ * and revisit the state of the cgroup, if necessary.
+ *
+ * If always_leave is not set, and the cgroup is freezing,
+ * we're racing with the cgroup freezing. In this case, we don't
+ * drop the frozen counter to avoid a transient switch to
+ * the unfrozen state.
+ */
+void cgroup_leave_frozen(bool always_leave)
+{
+ struct cgroup *cgrp;
+
+ spin_lock_irq(&css_set_lock);
+ cgrp = task_dfl_cgroup(current);
+ if (always_leave || !test_bit(CGRP_FREEZE, &cgrp->flags)) {
+ cgroup_dec_frozen_cnt(cgrp);
+ cgroup_update_frozen(cgrp);
+ WARN_ON_ONCE(!current->frozen);
+ current->frozen = false;
+ }
+ spin_unlock_irq(&css_set_lock);
+
+ if (unlikely(current->frozen)) {
+ /*
+ * If the task remained in the frozen state,
+ * make sure it won't reach userspace without
+ * entering the signal handling loop.
+ */
+ spin_lock_irq(¤t->sighand->siglock);
+ recalc_sigpending();
+ spin_unlock_irq(¤t->sighand->siglock);
+ }
+}
+
+/*
+ * Freeze or unfreeze the task by setting or clearing the JOBCTL_TRAP_FREEZE
+ * jobctl bit.
+ */
+static void cgroup_freeze_task(struct task_struct *task, bool freeze)
+{
+ unsigned long flags;
+
+ /* If the task is about to die, don't bother with freezing it. */
+ if (!lock_task_sighand(task, &flags))
return;
if (freeze) {
- if (!(freezer->state & CGROUP_FREEZING))
- atomic_inc(&system_freezing_cnt);
- freezer->state |= state;
- freeze_cgroup(freezer);
+ task->jobctl |= JOBCTL_TRAP_FREEZE;
+ signal_wake_up(task, false);
} else {
- bool was_freezing = freezer->state & CGROUP_FREEZING;
-
- freezer->state &= ~state;
-
- if (!(freezer->state & CGROUP_FREEZING)) {
- if (was_freezing)
- atomic_dec(&system_freezing_cnt);
- freezer->state &= ~CGROUP_FROZEN;
- unfreeze_cgroup(freezer);
- }
+ task->jobctl &= ~JOBCTL_TRAP_FREEZE;
+ wake_up_process(task);
}
+
+ unlock_task_sighand(task, &flags);
}
-/**
- * freezer_change_state - change the freezing state of a cgroup_freezer
- * @freezer: freezer of interest
- * @freeze: whether to freeze or thaw
- *
- * Freeze or thaw @freezer according to @freeze. The operations are
- * recursive - all descendants of @freezer will be affected.
+/*
+ * Freeze or unfreeze all tasks in the given cgroup.
*/
-static void freezer_change_state(struct freezer *freezer, bool freeze)
+static void cgroup_do_freeze(struct cgroup *cgrp, bool freeze)
{
- struct cgroup_subsys_state *pos;
+ struct css_task_iter it;
+ struct task_struct *task;
+
+ lockdep_assert_held(&cgroup_mutex);
+
+ spin_lock_irq(&css_set_lock);
+ if (freeze)
+ set_bit(CGRP_FREEZE, &cgrp->flags);
+ else
+ clear_bit(CGRP_FREEZE, &cgrp->flags);
+ spin_unlock_irq(&css_set_lock);
+
+ css_task_iter_start(&cgrp->self, 0, &it);
+ while ((task = css_task_iter_next(&it))) {
+ /*
+ * Ignore kernel threads here. Freezing cgroups containing
+ * kthreads isn't supported.
+ */
+ if (task->flags & PF_KTHREAD)
+ continue;
+ cgroup_freeze_task(task, freeze);
+ }
+ css_task_iter_end(&it);
/*
- * Update all its descendants in pre-order traversal. Each
- * descendant will try to inherit its parent's FREEZING state as
- * CGROUP_FREEZING_PARENT.
+ * Cgroup state should be revisited here to cover empty leaf cgroups
+ * and cgroups which descendants are already in the desired state.
*/
- mutex_lock(&freezer_mutex);
- rcu_read_lock();
- css_for_each_descendant_pre(pos, &freezer->css) {
- struct freezer *pos_f = css_freezer(pos);
- struct freezer *parent = parent_freezer(pos_f);
+ spin_lock_irq(&css_set_lock);
+ if (cgrp->nr_descendants == cgrp->freezer.nr_frozen_descendants)
+ cgroup_update_frozen(cgrp);
+ spin_unlock_irq(&css_set_lock);
+}
- if (!css_tryget_online(pos))
- continue;
- rcu_read_unlock();
+/*
+ * Adjust the task state (freeze or unfreeze) and revisit the state of
+ * source and destination cgroups.
+ */
+void cgroup_freezer_migrate_task(struct task_struct *task,
+ struct cgroup *src, struct cgroup *dst)
+{
+ lockdep_assert_held(&css_set_lock);
- if (pos_f == freezer)
- freezer_apply_state(pos_f, freeze,
- CGROUP_FREEZING_SELF);
- else
- freezer_apply_state(pos_f,
- parent->state & CGROUP_FREEZING,
- CGROUP_FREEZING_PARENT);
+ /*
+ * Kernel threads are not supposed to be frozen at all.
+ */
+ if (task->flags & PF_KTHREAD)
+ return;
- rcu_read_lock();
- css_put(pos);
+ /*
+ * Adjust counters of freezing and frozen tasks.
+ * Note, that if the task is frozen, but the destination cgroup is not
+ * frozen, we bump both counters to keep them balanced.
+ */
+ if (task->frozen) {
+ cgroup_inc_frozen_cnt(dst);
+ cgroup_dec_frozen_cnt(src);
}
- rcu_read_unlock();
- mutex_unlock(&freezer_mutex);
+ cgroup_update_frozen(dst);
+ cgroup_update_frozen(src);
+
+ /*
+ * Force the task to the desired state.
+ */
+ cgroup_freeze_task(task, test_bit(CGRP_FREEZE, &dst->flags));
}
-static ssize_t freezer_write(struct kernfs_open_file *of,
- char *buf, size_t nbytes, loff_t off)
+void cgroup_freezer_frozen_exit(struct task_struct *task)
{
- bool freeze;
+ struct cgroup *cgrp = task_dfl_cgroup(task);
- buf = strstrip(buf);
+ lockdep_assert_held(&css_set_lock);
- if (strcmp(buf, freezer_state_strs(0)) == 0)
- freeze = false;
- else if (strcmp(buf, freezer_state_strs(CGROUP_FROZEN)) == 0)
- freeze = true;
- else
- return -EINVAL;
-
- freezer_change_state(css_freezer(of_css(of)), freeze);
- return nbytes;
+ cgroup_dec_frozen_cnt(cgrp);
+ cgroup_update_frozen(cgrp);
}
-static u64 freezer_self_freezing_read(struct cgroup_subsys_state *css,
- struct cftype *cft)
+void cgroup_freeze(struct cgroup *cgrp, bool freeze)
{
- struct freezer *freezer = css_freezer(css);
+ struct cgroup_subsys_state *css;
+ struct cgroup *dsct;
+ bool applied = false;
- return (bool)(freezer->state & CGROUP_FREEZING_SELF);
+ lockdep_assert_held(&cgroup_mutex);
+
+ /*
+ * Nothing changed? Just exit.
+ */
+ if (cgrp->freezer.freeze == freeze)
+ return;
+
+ cgrp->freezer.freeze = freeze;
+
+ /*
+ * Propagate changes downwards the cgroup tree.
+ */
+ css_for_each_descendant_pre(css, &cgrp->self) {
+ dsct = css->cgroup;
+
+ if (cgroup_is_dead(dsct))
+ continue;
+
+ if (freeze) {
+ dsct->freezer.e_freeze++;
+ /*
+ * Already frozen because of ancestor's settings?
+ */
+ if (dsct->freezer.e_freeze > 1)
+ continue;
+ } else {
+ dsct->freezer.e_freeze--;
+ /*
+ * Still frozen because of ancestor's settings?
+ */
+ if (dsct->freezer.e_freeze > 0)
+ continue;
+
+ WARN_ON_ONCE(dsct->freezer.e_freeze < 0);
+ }
+
+ /*
+ * Do change actual state: freeze or unfreeze.
+ */
+ cgroup_do_freeze(dsct, freeze);
+ applied = true;
+ }
+
+ /*
+ * Even if the actual state hasn't changed, let's notify a user.
+ * The state can be enforced by an ancestor cgroup: the cgroup
+ * can already be in the desired state or it can be locked in the
+ * opposite state, so that the transition will never happen.
+ * In both cases it's better to notify a user, that there is
+ * nothing to wait for.
+ */
+ if (!applied)
+ cgroup_file_notify(&cgrp->events_file);
}
-
-static u64 freezer_parent_freezing_read(struct cgroup_subsys_state *css,
- struct cftype *cft)
-{
- struct freezer *freezer = css_freezer(css);
-
- return (bool)(freezer->state & CGROUP_FREEZING_PARENT);
-}
-
-static struct cftype files[] = {
- {
- .name = "state",
- .flags = CFTYPE_NOT_ON_ROOT,
- .seq_show = freezer_read,
- .write = freezer_write,
- },
- {
- .name = "self_freezing",
- .flags = CFTYPE_NOT_ON_ROOT,
- .read_u64 = freezer_self_freezing_read,
- },
- {
- .name = "parent_freezing",
- .flags = CFTYPE_NOT_ON_ROOT,
- .read_u64 = freezer_parent_freezing_read,
- },
- { } /* terminate */
-};
-
-struct cgroup_subsys freezer_cgrp_subsys = {
- .css_alloc = freezer_css_alloc,
- .css_online = freezer_css_online,
- .css_offline = freezer_css_offline,
- .css_free = freezer_css_free,
- .attach = freezer_attach,
- .fork = freezer_fork,
- .legacy_cftypes = files,
-};
diff --git a/kernel/cgroup/legacy_freezer.c b/kernel/cgroup/legacy_freezer.c
new file mode 100644
index 0000000..0823679
--- /dev/null
+++ b/kernel/cgroup/legacy_freezer.c
@@ -0,0 +1,481 @@
+/*
+ * cgroup_freezer.c - control group freezer subsystem
+ *
+ * Copyright IBM Corporation, 2007
+ *
+ * Author : Cedric Le Goater <clg@fr.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2.1 of the GNU Lesser General Public License
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#include <linux/export.h>
+#include <linux/slab.h>
+#include <linux/cgroup.h>
+#include <linux/fs.h>
+#include <linux/uaccess.h>
+#include <linux/freezer.h>
+#include <linux/seq_file.h>
+#include <linux/mutex.h>
+
+/*
+ * A cgroup is freezing if any FREEZING flags are set. FREEZING_SELF is
+ * set if "FROZEN" is written to freezer.state cgroupfs file, and cleared
+ * for "THAWED". FREEZING_PARENT is set if the parent freezer is FREEZING
+ * for whatever reason. IOW, a cgroup has FREEZING_PARENT set if one of
+ * its ancestors has FREEZING_SELF set.
+ */
+enum freezer_state_flags {
+ CGROUP_FREEZER_ONLINE = (1 << 0), /* freezer is fully online */
+ CGROUP_FREEZING_SELF = (1 << 1), /* this freezer is freezing */
+ CGROUP_FREEZING_PARENT = (1 << 2), /* the parent freezer is freezing */
+ CGROUP_FROZEN = (1 << 3), /* this and its descendants frozen */
+
+ /* mask for all FREEZING flags */
+ CGROUP_FREEZING = CGROUP_FREEZING_SELF | CGROUP_FREEZING_PARENT,
+};
+
+struct freezer {
+ struct cgroup_subsys_state css;
+ unsigned int state;
+};
+
+static DEFINE_MUTEX(freezer_mutex);
+
+static inline struct freezer *css_freezer(struct cgroup_subsys_state *css)
+{
+ return css ? container_of(css, struct freezer, css) : NULL;
+}
+
+static inline struct freezer *task_freezer(struct task_struct *task)
+{
+ return css_freezer(task_css(task, freezer_cgrp_id));
+}
+
+static struct freezer *parent_freezer(struct freezer *freezer)
+{
+ return css_freezer(freezer->css.parent);
+}
+
+bool cgroup_freezing(struct task_struct *task)
+{
+ bool ret;
+
+ rcu_read_lock();
+ ret = task_freezer(task)->state & CGROUP_FREEZING;
+ rcu_read_unlock();
+
+ return ret;
+}
+
+static const char *freezer_state_strs(unsigned int state)
+{
+ if (state & CGROUP_FROZEN)
+ return "FROZEN";
+ if (state & CGROUP_FREEZING)
+ return "FREEZING";
+ return "THAWED";
+};
+
+static struct cgroup_subsys_state *
+freezer_css_alloc(struct cgroup_subsys_state *parent_css)
+{
+ struct freezer *freezer;
+
+ freezer = kzalloc(sizeof(struct freezer), GFP_KERNEL);
+ if (!freezer)
+ return ERR_PTR(-ENOMEM);
+
+ return &freezer->css;
+}
+
+/**
+ * freezer_css_online - commit creation of a freezer css
+ * @css: css being created
+ *
+ * We're committing to creation of @css. Mark it online and inherit
+ * parent's freezing state while holding both parent's and our
+ * freezer->lock.
+ */
+static int freezer_css_online(struct cgroup_subsys_state *css)
+{
+ struct freezer *freezer = css_freezer(css);
+ struct freezer *parent = parent_freezer(freezer);
+
+ mutex_lock(&freezer_mutex);
+
+ freezer->state |= CGROUP_FREEZER_ONLINE;
+
+ if (parent && (parent->state & CGROUP_FREEZING)) {
+ freezer->state |= CGROUP_FREEZING_PARENT | CGROUP_FROZEN;
+ atomic_inc(&system_freezing_cnt);
+ }
+
+ mutex_unlock(&freezer_mutex);
+ return 0;
+}
+
+/**
+ * freezer_css_offline - initiate destruction of a freezer css
+ * @css: css being destroyed
+ *
+ * @css is going away. Mark it dead and decrement system_freezing_count if
+ * it was holding one.
+ */
+static void freezer_css_offline(struct cgroup_subsys_state *css)
+{
+ struct freezer *freezer = css_freezer(css);
+
+ mutex_lock(&freezer_mutex);
+
+ if (freezer->state & CGROUP_FREEZING)
+ atomic_dec(&system_freezing_cnt);
+
+ freezer->state = 0;
+
+ mutex_unlock(&freezer_mutex);
+}
+
+static void freezer_css_free(struct cgroup_subsys_state *css)
+{
+ kfree(css_freezer(css));
+}
+
+/*
+ * Tasks can be migrated into a different freezer anytime regardless of its
+ * current state. freezer_attach() is responsible for making new tasks
+ * conform to the current state.
+ *
+ * Freezer state changes and task migration are synchronized via
+ * @freezer->lock. freezer_attach() makes the new tasks conform to the
+ * current state and all following state changes can see the new tasks.
+ */
+static void freezer_attach(struct cgroup_taskset *tset)
+{
+ struct task_struct *task;
+ struct cgroup_subsys_state *new_css;
+
+ mutex_lock(&freezer_mutex);
+
+ /*
+ * Make the new tasks conform to the current state of @new_css.
+ * For simplicity, when migrating any task to a FROZEN cgroup, we
+ * revert it to FREEZING and let update_if_frozen() determine the
+ * correct state later.
+ *
+ * Tasks in @tset are on @new_css but may not conform to its
+ * current state before executing the following - !frozen tasks may
+ * be visible in a FROZEN cgroup and frozen tasks in a THAWED one.
+ */
+ cgroup_taskset_for_each(task, new_css, tset) {
+ struct freezer *freezer = css_freezer(new_css);
+
+ if (!(freezer->state & CGROUP_FREEZING)) {
+ __thaw_task(task);
+ } else {
+ freeze_task(task);
+ /* clear FROZEN and propagate upwards */
+ while (freezer && (freezer->state & CGROUP_FROZEN)) {
+ freezer->state &= ~CGROUP_FROZEN;
+ freezer = parent_freezer(freezer);
+ }
+ }
+ }
+
+ mutex_unlock(&freezer_mutex);
+}
+
+/**
+ * freezer_fork - cgroup post fork callback
+ * @task: a task which has just been forked
+ *
+ * @task has just been created and should conform to the current state of
+ * the cgroup_freezer it belongs to. This function may race against
+ * freezer_attach(). Losing to freezer_attach() means that we don't have
+ * to do anything as freezer_attach() will put @task into the appropriate
+ * state.
+ */
+static void freezer_fork(struct task_struct *task)
+{
+ struct freezer *freezer;
+
+ /*
+ * The root cgroup is non-freezable, so we can skip locking the
+ * freezer. This is safe regardless of race with task migration.
+ * If we didn't race or won, skipping is obviously the right thing
+ * to do. If we lost and root is the new cgroup, noop is still the
+ * right thing to do.
+ */
+ if (task_css_is_root(task, freezer_cgrp_id))
+ return;
+
+ mutex_lock(&freezer_mutex);
+ rcu_read_lock();
+
+ freezer = task_freezer(task);
+ if (freezer->state & CGROUP_FREEZING)
+ freeze_task(task);
+
+ rcu_read_unlock();
+ mutex_unlock(&freezer_mutex);
+}
+
+/**
+ * update_if_frozen - update whether a cgroup finished freezing
+ * @css: css of interest
+ *
+ * Once FREEZING is initiated, transition to FROZEN is lazily updated by
+ * calling this function. If the current state is FREEZING but not FROZEN,
+ * this function checks whether all tasks of this cgroup and the descendant
+ * cgroups finished freezing and, if so, sets FROZEN.
+ *
+ * The caller is responsible for grabbing RCU read lock and calling
+ * update_if_frozen() on all descendants prior to invoking this function.
+ *
+ * Task states and freezer state might disagree while tasks are being
+ * migrated into or out of @css, so we can't verify task states against
+ * @freezer state here. See freezer_attach() for details.
+ */
+static void update_if_frozen(struct cgroup_subsys_state *css)
+{
+ struct freezer *freezer = css_freezer(css);
+ struct cgroup_subsys_state *pos;
+ struct css_task_iter it;
+ struct task_struct *task;
+
+ lockdep_assert_held(&freezer_mutex);
+
+ if (!(freezer->state & CGROUP_FREEZING) ||
+ (freezer->state & CGROUP_FROZEN))
+ return;
+
+ /* are all (live) children frozen? */
+ rcu_read_lock();
+ css_for_each_child(pos, css) {
+ struct freezer *child = css_freezer(pos);
+
+ if ((child->state & CGROUP_FREEZER_ONLINE) &&
+ !(child->state & CGROUP_FROZEN)) {
+ rcu_read_unlock();
+ return;
+ }
+ }
+ rcu_read_unlock();
+
+ /* are all tasks frozen? */
+ css_task_iter_start(css, 0, &it);
+
+ while ((task = css_task_iter_next(&it))) {
+ if (freezing(task)) {
+ /*
+ * freezer_should_skip() indicates that the task
+ * should be skipped when determining freezing
+ * completion. Consider it frozen in addition to
+ * the usual frozen condition.
+ */
+ if (!frozen(task) && !freezer_should_skip(task))
+ goto out_iter_end;
+ }
+ }
+
+ freezer->state |= CGROUP_FROZEN;
+out_iter_end:
+ css_task_iter_end(&it);
+}
+
+static int freezer_read(struct seq_file *m, void *v)
+{
+ struct cgroup_subsys_state *css = seq_css(m), *pos;
+
+ mutex_lock(&freezer_mutex);
+ rcu_read_lock();
+
+ /* update states bottom-up */
+ css_for_each_descendant_post(pos, css) {
+ if (!css_tryget_online(pos))
+ continue;
+ rcu_read_unlock();
+
+ update_if_frozen(pos);
+
+ rcu_read_lock();
+ css_put(pos);
+ }
+
+ rcu_read_unlock();
+ mutex_unlock(&freezer_mutex);
+
+ seq_puts(m, freezer_state_strs(css_freezer(css)->state));
+ seq_putc(m, '\n');
+ return 0;
+}
+
+static void freeze_cgroup(struct freezer *freezer)
+{
+ struct css_task_iter it;
+ struct task_struct *task;
+
+ css_task_iter_start(&freezer->css, 0, &it);
+ while ((task = css_task_iter_next(&it)))
+ freeze_task(task);
+ css_task_iter_end(&it);
+}
+
+static void unfreeze_cgroup(struct freezer *freezer)
+{
+ struct css_task_iter it;
+ struct task_struct *task;
+
+ css_task_iter_start(&freezer->css, 0, &it);
+ while ((task = css_task_iter_next(&it)))
+ __thaw_task(task);
+ css_task_iter_end(&it);
+}
+
+/**
+ * freezer_apply_state - apply state change to a single cgroup_freezer
+ * @freezer: freezer to apply state change to
+ * @freeze: whether to freeze or unfreeze
+ * @state: CGROUP_FREEZING_* flag to set or clear
+ *
+ * Set or clear @state on @cgroup according to @freeze, and perform
+ * freezing or thawing as necessary.
+ */
+static void freezer_apply_state(struct freezer *freezer, bool freeze,
+ unsigned int state)
+{
+ /* also synchronizes against task migration, see freezer_attach() */
+ lockdep_assert_held(&freezer_mutex);
+
+ if (!(freezer->state & CGROUP_FREEZER_ONLINE))
+ return;
+
+ if (freeze) {
+ if (!(freezer->state & CGROUP_FREEZING))
+ atomic_inc(&system_freezing_cnt);
+ freezer->state |= state;
+ freeze_cgroup(freezer);
+ } else {
+ bool was_freezing = freezer->state & CGROUP_FREEZING;
+
+ freezer->state &= ~state;
+
+ if (!(freezer->state & CGROUP_FREEZING)) {
+ if (was_freezing)
+ atomic_dec(&system_freezing_cnt);
+ freezer->state &= ~CGROUP_FROZEN;
+ unfreeze_cgroup(freezer);
+ }
+ }
+}
+
+/**
+ * freezer_change_state - change the freezing state of a cgroup_freezer
+ * @freezer: freezer of interest
+ * @freeze: whether to freeze or thaw
+ *
+ * Freeze or thaw @freezer according to @freeze. The operations are
+ * recursive - all descendants of @freezer will be affected.
+ */
+static void freezer_change_state(struct freezer *freezer, bool freeze)
+{
+ struct cgroup_subsys_state *pos;
+
+ /*
+ * Update all its descendants in pre-order traversal. Each
+ * descendant will try to inherit its parent's FREEZING state as
+ * CGROUP_FREEZING_PARENT.
+ */
+ mutex_lock(&freezer_mutex);
+ rcu_read_lock();
+ css_for_each_descendant_pre(pos, &freezer->css) {
+ struct freezer *pos_f = css_freezer(pos);
+ struct freezer *parent = parent_freezer(pos_f);
+
+ if (!css_tryget_online(pos))
+ continue;
+ rcu_read_unlock();
+
+ if (pos_f == freezer)
+ freezer_apply_state(pos_f, freeze,
+ CGROUP_FREEZING_SELF);
+ else
+ freezer_apply_state(pos_f,
+ parent->state & CGROUP_FREEZING,
+ CGROUP_FREEZING_PARENT);
+
+ rcu_read_lock();
+ css_put(pos);
+ }
+ rcu_read_unlock();
+ mutex_unlock(&freezer_mutex);
+}
+
+static ssize_t freezer_write(struct kernfs_open_file *of,
+ char *buf, size_t nbytes, loff_t off)
+{
+ bool freeze;
+
+ buf = strstrip(buf);
+
+ if (strcmp(buf, freezer_state_strs(0)) == 0)
+ freeze = false;
+ else if (strcmp(buf, freezer_state_strs(CGROUP_FROZEN)) == 0)
+ freeze = true;
+ else
+ return -EINVAL;
+
+ freezer_change_state(css_freezer(of_css(of)), freeze);
+ return nbytes;
+}
+
+static u64 freezer_self_freezing_read(struct cgroup_subsys_state *css,
+ struct cftype *cft)
+{
+ struct freezer *freezer = css_freezer(css);
+
+ return (bool)(freezer->state & CGROUP_FREEZING_SELF);
+}
+
+static u64 freezer_parent_freezing_read(struct cgroup_subsys_state *css,
+ struct cftype *cft)
+{
+ struct freezer *freezer = css_freezer(css);
+
+ return (bool)(freezer->state & CGROUP_FREEZING_PARENT);
+}
+
+static struct cftype files[] = {
+ {
+ .name = "state",
+ .flags = CFTYPE_NOT_ON_ROOT,
+ .seq_show = freezer_read,
+ .write = freezer_write,
+ },
+ {
+ .name = "self_freezing",
+ .flags = CFTYPE_NOT_ON_ROOT,
+ .read_u64 = freezer_self_freezing_read,
+ },
+ {
+ .name = "parent_freezing",
+ .flags = CFTYPE_NOT_ON_ROOT,
+ .read_u64 = freezer_parent_freezing_read,
+ },
+ { } /* terminate */
+};
+
+struct cgroup_subsys freezer_cgrp_subsys = {
+ .css_alloc = freezer_css_alloc,
+ .css_online = freezer_css_online,
+ .css_offline = freezer_css_offline,
+ .css_free = freezer_css_free,
+ .attach = freezer_attach,
+ .fork = freezer_fork,
+ .legacy_cftypes = files,
+};
diff --git a/kernel/cpu.c b/kernel/cpu.c
index d6fd362..dde1d7d 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -1295,6 +1295,7 @@ void __weak arch_enable_nonboot_cpus_end(void)
void enable_nonboot_cpus(void)
{
int cpu, error;
+ struct device *cpu_device;
/* Allow everyone to use the CPU hotplug again */
cpu_maps_update_begin();
@@ -1312,6 +1313,12 @@ void enable_nonboot_cpus(void)
trace_suspend_resume(TPS("CPU_ON"), cpu, false);
if (!error) {
pr_info("CPU%d is up\n", cpu);
+ cpu_device = get_cpu_device(cpu);
+ if (!cpu_device)
+ pr_err("%s: failed to get cpu%d device\n",
+ __func__, cpu);
+ else
+ kobject_uevent(&cpu_device->kobj, KOBJ_ONLINE);
continue;
}
pr_warn("Error taking CPU%d up: %d\n", cpu, error);
@@ -2310,6 +2317,9 @@ EXPORT_SYMBOL(__cpu_present_mask);
struct cpumask __cpu_active_mask __read_mostly;
EXPORT_SYMBOL(__cpu_active_mask);
+struct cpumask __cpu_isolated_mask __read_mostly;
+EXPORT_SYMBOL(__cpu_isolated_mask);
+
void init_cpu_present(const struct cpumask *src)
{
cpumask_copy(&__cpu_present_mask, src);
diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
index dc6bf35..cdde394 100644
--- a/kernel/debug/kdb/kdb_main.c
+++ b/kernel/debug/kdb/kdb_main.c
@@ -2556,16 +2556,11 @@ static int kdb_summary(int argc, const char **argv)
}
kdb_printf("%02ld:%02ld\n", val.uptime/(60*60), (val.uptime/60)%60);
- /* lifted from fs/proc/proc_misc.c::loadavg_read_proc() */
-
-#define LOAD_INT(x) ((x) >> FSHIFT)
-#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)
kdb_printf("load avg %ld.%02ld %ld.%02ld %ld.%02ld\n",
LOAD_INT(val.loads[0]), LOAD_FRAC(val.loads[0]),
LOAD_INT(val.loads[1]), LOAD_FRAC(val.loads[1]),
LOAD_INT(val.loads[2]), LOAD_FRAC(val.loads[2]));
-#undef LOAD_INT
-#undef LOAD_FRAC
+
/* Display in kilobytes */
#define K(x) ((x) << (PAGE_SHIFT - 10))
kdb_printf("\nMemTotal: %8lu kB\nMemFree: %8lu kB\n"
diff --git a/kernel/delayacct.c b/kernel/delayacct.c
index ca8ac28..2a12b98 100644
--- a/kernel/delayacct.c
+++ b/kernel/delayacct.c
@@ -135,9 +135,12 @@ int __delayacct_add_tsk(struct taskstats *d, struct task_struct *tsk)
d->swapin_delay_total = (tmp < d->swapin_delay_total) ? 0 : tmp;
tmp = d->freepages_delay_total + tsk->delays->freepages_delay;
d->freepages_delay_total = (tmp < d->freepages_delay_total) ? 0 : tmp;
+ tmp = d->thrashing_delay_total + tsk->delays->thrashing_delay;
+ d->thrashing_delay_total = (tmp < d->thrashing_delay_total) ? 0 : tmp;
d->blkio_count += tsk->delays->blkio_count;
d->swapin_count += tsk->delays->swapin_count;
d->freepages_count += tsk->delays->freepages_count;
+ d->thrashing_count += tsk->delays->thrashing_count;
raw_spin_unlock_irqrestore(&tsk->delays->lock, flags);
return 0;
@@ -169,3 +172,15 @@ void __delayacct_freepages_end(void)
¤t->delays->freepages_count);
}
+void __delayacct_thrashing_start(void)
+{
+ current->delays->thrashing_start = ktime_get_ns();
+}
+
+void __delayacct_thrashing_end(void)
+{
+ delayacct_end(¤t->delays->lock,
+ ¤t->delays->thrashing_start,
+ ¤t->delays->thrashing_delay,
+ ¤t->delays->thrashing_count);
+}
diff --git a/kernel/dma/Makefile b/kernel/dma/Makefile
index 6de44e4e..c6d0040 100644
--- a/kernel/dma/Makefile
+++ b/kernel/dma/Makefile
@@ -2,7 +2,7 @@
obj-$(CONFIG_HAS_DMA) += mapping.o
obj-$(CONFIG_DMA_CMA) += contiguous.o
-obj-$(CONFIG_HAVE_GENERIC_DMA_COHERENT) += coherent.o
+obj-$(CONFIG_HAVE_GENERIC_DMA_COHERENT) += coherent.o removed.o
obj-$(CONFIG_DMA_DIRECT_OPS) += direct.o
obj-$(CONFIG_DMA_NONCOHERENT_OPS) += noncoherent.o
obj-$(CONFIG_DMA_VIRT_OPS) += virt.o
diff --git a/kernel/dma/coherent.c b/kernel/dma/coherent.c
index 597d408..83e4861 100644
--- a/kernel/dma/coherent.c
+++ b/kernel/dma/coherent.c
@@ -29,14 +29,21 @@ static inline struct dma_coherent_mem *dev_get_coherent_memory(struct device *de
return NULL;
}
-static inline dma_addr_t dma_get_device_base(struct device *dev,
- struct dma_coherent_mem * mem)
+dma_addr_t dma_get_device_base(struct device *dev,
+ struct dma_coherent_mem *mem)
{
if (mem->use_dev_dma_pfn_offset)
return (mem->pfn_base - dev->dma_pfn_offset) << PAGE_SHIFT;
else
return mem->device_base;
}
+EXPORT_SYMBOL_GPL(dma_get_device_base);
+
+unsigned long dma_get_size(struct dma_coherent_mem *mem)
+{
+ return mem->size << PAGE_SHIFT;
+}
+EXPORT_SYMBOL_GPL(dma_get_size);
static int dma_init_coherent_memory(
phys_addr_t phys_addr, dma_addr_t device_addr, size_t size, int flags,
diff --git a/kernel/dma/contiguous.c b/kernel/dma/contiguous.c
index b2a87905..e8c214d1 100644
--- a/kernel/dma/contiguous.c
+++ b/kernel/dma/contiguous.c
@@ -31,6 +31,7 @@
#endif
struct cma *dma_contiguous_default_area;
+EXPORT_SYMBOL(dma_contiguous_default_area);
/*
* Default global CMA area size can be defined in kernel's .config.
diff --git a/kernel/dma/mapping.c b/kernel/dma/mapping.c
index d2a92dd..44f47d8 100644
--- a/kernel/dma/mapping.c
+++ b/kernel/dma/mapping.c
@@ -291,11 +291,12 @@ void *dma_common_contiguous_remap(struct page *page, size_t size,
unsigned long vm_flags,
pgprot_t prot, const void *caller)
{
- int i;
+ unsigned long i;
struct page **pages;
struct vm_struct *area;
- pages = kmalloc(sizeof(struct page *) << get_order(size), GFP_KERNEL);
+ pages = kvmalloc(sizeof(struct page *) << get_order(size), GFP_KERNEL);
+
if (!pages)
return NULL;
@@ -304,7 +305,7 @@ void *dma_common_contiguous_remap(struct page *page, size_t size,
area = __dma_common_pages_remap(pages, size, vm_flags, prot, caller);
- kfree(pages);
+ kvfree(pages);
if (!area)
return NULL;
@@ -314,12 +315,14 @@ void *dma_common_contiguous_remap(struct page *page, size_t size,
/*
* unmaps a range previously mapped by dma_common_*_remap
*/
-void dma_common_free_remap(void *cpu_addr, size_t size, unsigned long vm_flags)
+void dma_common_free_remap(void *cpu_addr, size_t size, unsigned long vm_flags,
+ bool no_warn)
{
struct vm_struct *area = find_vm_area(cpu_addr);
if (!area || (area->flags & vm_flags) != vm_flags) {
- WARN(1, "trying to free invalid coherent area: %p\n", cpu_addr);
+ WARN(!no_warn, "trying to free invalid coherent area: %p\n",
+ cpu_addr);
return;
}
diff --git a/kernel/dma/removed.c b/kernel/dma/removed.c
new file mode 100644
index 0000000..bb4024a
--- /dev/null
+++ b/kernel/dma/removed.c
@@ -0,0 +1,272 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2013-2014,2018 The Linux Foundation. All rights reserved.
+ * Copyright (C) 2000-2004 Russell King
+ */
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/gfp.h>
+#include <linux/errno.h>
+#include <linux/list.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/dma-mapping.h>
+#include <linux/dma-contiguous.h>
+#include <linux/highmem.h>
+#include <linux/memblock.h>
+#include <linux/slab.h>
+#include <linux/iommu.h>
+#include <linux/io.h>
+#include <linux/vmalloc.h>
+#include <linux/sizes.h>
+#include <linux/spinlock.h>
+
+struct removed_region {
+ phys_addr_t base;
+ int nr_pages;
+ unsigned long *bitmap;
+ struct mutex lock;
+};
+
+#define NO_KERNEL_MAPPING_DUMMY 0x2222
+
+static int dma_init_removed_memory(phys_addr_t phys_addr, size_t size,
+ struct removed_region **mem)
+{
+ struct removed_region *dma_mem = NULL;
+ int pages = size >> PAGE_SHIFT;
+ int bitmap_size = BITS_TO_LONGS(pages) * sizeof(long);
+
+ dma_mem = kzalloc(sizeof(struct removed_region), GFP_KERNEL);
+ if (!dma_mem)
+ goto out;
+ dma_mem->bitmap = kzalloc(bitmap_size, GFP_KERNEL);
+ if (!dma_mem->bitmap)
+ goto free1_out;
+
+ dma_mem->base = phys_addr;
+ dma_mem->nr_pages = pages;
+ mutex_init(&dma_mem->lock);
+
+ *mem = dma_mem;
+
+ return 0;
+
+free1_out:
+ kfree(dma_mem);
+out:
+ return -ENOMEM;
+}
+
+static int dma_assign_removed_region(struct device *dev,
+ struct removed_region *mem)
+{
+ if (dev->removed_mem)
+ return -EBUSY;
+
+ dev->removed_mem = mem;
+ return 0;
+}
+
+void *removed_alloc(struct device *dev, size_t size, dma_addr_t *handle,
+ gfp_t gfp, unsigned long attrs)
+{
+ bool no_kernel_mapping = attrs & DMA_ATTR_NO_KERNEL_MAPPING;
+ bool skip_zeroing = attrs & DMA_ATTR_SKIP_ZEROING;
+ int pageno;
+ unsigned long order;
+ void __iomem *addr = NULL;
+ struct removed_region *dma_mem = dev->removed_mem;
+ int nbits;
+ unsigned int align;
+
+ if (!gfpflags_allow_blocking(gfp))
+ return NULL;
+
+ size = PAGE_ALIGN(size);
+ nbits = size >> PAGE_SHIFT;
+ order = get_order(size);
+
+ if (order > get_order(SZ_1M))
+ order = get_order(SZ_1M);
+
+ align = (1 << order) - 1;
+
+
+ mutex_lock(&dma_mem->lock);
+ pageno = bitmap_find_next_zero_area(dma_mem->bitmap, dma_mem->nr_pages,
+ 0, nbits, align);
+
+ if (pageno < dma_mem->nr_pages) {
+ phys_addr_t base = dma_mem->base + pageno * PAGE_SIZE;
+ *handle = base;
+
+ bitmap_set(dma_mem->bitmap, pageno, nbits);
+
+ if (no_kernel_mapping && skip_zeroing) {
+ addr = (void *)NO_KERNEL_MAPPING_DUMMY;
+ goto out;
+ }
+
+ addr = ioremap_wc(base, size);
+ if (WARN_ON(!addr)) {
+ bitmap_clear(dma_mem->bitmap, pageno, nbits);
+ } else {
+ if (!skip_zeroing)
+ memset_io(addr, 0, size);
+ if (no_kernel_mapping) {
+ iounmap(addr);
+ addr = (void *)NO_KERNEL_MAPPING_DUMMY;
+ }
+ *handle = base;
+ }
+ }
+
+out:
+ mutex_unlock(&dma_mem->lock);
+ return addr;
+}
+
+
+int removed_mmap(struct device *dev, struct vm_area_struct *vma,
+ void *cpu_addr, dma_addr_t dma_addr, size_t size,
+ unsigned long attrs)
+{
+ return -ENXIO;
+}
+
+void removed_free(struct device *dev, size_t size, void *cpu_addr,
+ dma_addr_t handle, unsigned long attrs)
+{
+ bool no_kernel_mapping = attrs & DMA_ATTR_NO_KERNEL_MAPPING;
+ struct removed_region *dma_mem = dev->removed_mem;
+
+ size = PAGE_ALIGN(size);
+ if (!no_kernel_mapping)
+ iounmap(cpu_addr);
+ mutex_lock(&dma_mem->lock);
+ bitmap_clear(dma_mem->bitmap, (handle - dma_mem->base) >> PAGE_SHIFT,
+ size >> PAGE_SHIFT);
+ mutex_unlock(&dma_mem->lock);
+}
+
+static dma_addr_t removed_map_page(struct device *dev, struct page *page,
+ unsigned long offset, size_t size,
+ enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ return ~(dma_addr_t)0;
+}
+
+static void removed_unmap_page(struct device *dev, dma_addr_t dma_handle,
+ size_t size, enum dma_data_direction dir,
+ unsigned long attrs)
+{
+}
+
+static int removed_map_sg(struct device *dev, struct scatterlist *sg,
+ int nents, enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ return 0;
+}
+
+static void removed_unmap_sg(struct device *dev,
+ struct scatterlist *sg, int nents,
+ enum dma_data_direction dir,
+ unsigned long attrs)
+{
+}
+
+static void removed_sync_single_for_cpu(struct device *dev,
+ dma_addr_t dma_handle, size_t size,
+ enum dma_data_direction dir)
+{
+}
+
+void removed_sync_single_for_device(struct device *dev,
+ dma_addr_t dma_handle, size_t size,
+ enum dma_data_direction dir)
+{
+}
+
+void removed_sync_sg_for_cpu(struct device *dev,
+ struct scatterlist *sg, int nents,
+ enum dma_data_direction dir)
+{
+}
+
+void removed_sync_sg_for_device(struct device *dev,
+ struct scatterlist *sg, int nents,
+ enum dma_data_direction dir)
+{
+}
+
+static void __iomem *removed_remap(struct device *dev, void *cpu_addr,
+ dma_addr_t handle, size_t size, unsigned long attrs)
+{
+ return ioremap_wc(handle, size);
+}
+
+void removed_unremap(struct device *dev, void *remapped_address, size_t size)
+{
+ iounmap(remapped_address);
+}
+
+const struct dma_map_ops removed_dma_ops = {
+ .alloc = removed_alloc,
+ .free = removed_free,
+ .mmap = removed_mmap,
+ .map_page = removed_map_page,
+ .unmap_page = removed_unmap_page,
+ .map_sg = removed_map_sg,
+ .unmap_sg = removed_unmap_sg,
+ .sync_single_for_cpu = removed_sync_single_for_cpu,
+ .sync_single_for_device = removed_sync_single_for_device,
+ .sync_sg_for_cpu = removed_sync_sg_for_cpu,
+ .sync_sg_for_device = removed_sync_sg_for_device,
+ .remap = removed_remap,
+ .unremap = removed_unremap,
+};
+EXPORT_SYMBOL(removed_dma_ops);
+
+#ifdef CONFIG_OF_RESERVED_MEM
+#include <linux/of.h>
+#include <linux/of_fdt.h>
+#include <linux/of_reserved_mem.h>
+
+static int rmem_dma_device_init(struct reserved_mem *rmem, struct device *dev)
+{
+ struct removed_region *mem = rmem->priv;
+
+ if (!mem && dma_init_removed_memory(rmem->base, rmem->size, &mem)) {
+ pr_info("Reserved memory: failed to init DMA memory pool at %pa, size %ld MiB\n",
+ &rmem->base, (unsigned long)rmem->size / SZ_1M);
+ return -EINVAL;
+ }
+ set_dma_ops(dev, &removed_dma_ops);
+ rmem->priv = mem;
+ dma_assign_removed_region(dev, mem);
+ return 0;
+}
+
+static void rmem_dma_device_release(struct reserved_mem *rmem,
+ struct device *dev)
+{
+ dev->dma_mem = NULL;
+}
+
+static const struct reserved_mem_ops removed_mem_ops = {
+ .device_init = rmem_dma_device_init,
+ .device_release = rmem_dma_device_release,
+};
+
+static int __init removed_dma_setup(struct reserved_mem *rmem)
+{
+ rmem->ops = &removed_mem_ops;
+ pr_info("Removed memory: created DMA memory pool at %pa, size %ld MiB\n",
+ &rmem->base, (unsigned long)rmem->size / SZ_1M);
+ return 0;
+}
+RESERVEDMEM_OF_DECLARE(dma, "removed-dma-pool", removed_dma_setup);
+#endif
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 4a8c3f5..adb839d 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -2086,7 +2086,6 @@ __perf_remove_from_context(struct perf_event *event,
if (!ctx->nr_events && ctx->is_active) {
ctx->is_active = 0;
- ctx->rotate_necessary = 0;
if (ctx->task) {
WARN_ON_ONCE(cpuctx->task_ctx != ctx);
cpuctx->task_ctx = NULL;
@@ -2962,13 +2961,6 @@ static void ctx_sched_out(struct perf_event_context *ctx,
if (is_active & EVENT_FLEXIBLE) {
list_for_each_entry_safe(event, tmp, &ctx->flexible_active, active_list)
group_sched_out(event, cpuctx, ctx);
-
- /*
- * Since we cleared EVENT_FLEXIBLE, also clear
- * rotate_necessary, is will be reset by
- * ctx_flexible_sched_in() when needed.
- */
- ctx->rotate_necessary = 0;
}
perf_pmu_enable(ctx->pmu);
}
@@ -3327,13 +3319,10 @@ static int flexible_sched_in(struct perf_event *event, void *data)
return 0;
if (group_can_go_on(event, sid->cpuctx, sid->can_add_hw)) {
- int ret = group_sched_in(event, sid->cpuctx, sid->ctx);
- if (ret) {
+ if (!group_sched_in(event, sid->cpuctx, sid->ctx))
+ list_add_tail(&event->active_list, &sid->ctx->flexible_active);
+ else
sid->can_add_hw = 0;
- sid->ctx->rotate_necessary = 1;
- return 0;
- }
- list_add_tail(&event->active_list, &sid->ctx->flexible_active);
}
return 0;
@@ -3691,45 +3680,34 @@ static void rotate_ctx(struct perf_event_context *ctx, struct perf_event *event)
perf_event_groups_insert(&ctx->flexible_groups, event);
}
-/* pick an event from the flexible_groups to rotate */
static inline struct perf_event *
-ctx_event_to_rotate(struct perf_event_context *ctx)
+ctx_first_active(struct perf_event_context *ctx)
{
- struct perf_event *event;
-
- /* pick the first active flexible event */
- event = list_first_entry_or_null(&ctx->flexible_active,
- struct perf_event, active_list);
-
- /* if no active flexible event, pick the first event */
- if (!event) {
- event = rb_entry_safe(rb_first(&ctx->flexible_groups.tree),
- typeof(*event), group_node);
- }
-
- /*
- * Unconditionally clear rotate_necessary; if ctx_flexible_sched_in()
- * finds there are unschedulable events, it will set it again.
- */
- ctx->rotate_necessary = 0;
-
- return event;
+ return list_first_entry_or_null(&ctx->flexible_active,
+ struct perf_event, active_list);
}
static bool perf_rotate_context(struct perf_cpu_context *cpuctx)
{
struct perf_event *cpu_event = NULL, *task_event = NULL;
- struct perf_event_context *task_ctx = NULL;
- int cpu_rotate, task_rotate;
+ bool cpu_rotate = false, task_rotate = false;
+ struct perf_event_context *ctx = NULL;
/*
* Since we run this from IRQ context, nobody can install new
* events, thus the event count values are stable.
*/
- cpu_rotate = cpuctx->ctx.rotate_necessary;
- task_ctx = cpuctx->task_ctx;
- task_rotate = task_ctx ? task_ctx->rotate_necessary : 0;
+ if (cpuctx->ctx.nr_events) {
+ if (cpuctx->ctx.nr_events != cpuctx->ctx.nr_active)
+ cpu_rotate = true;
+ }
+
+ ctx = cpuctx->task_ctx;
+ if (ctx && ctx->nr_events) {
+ if (ctx->nr_events != ctx->nr_active)
+ task_rotate = true;
+ }
if (!(cpu_rotate || task_rotate))
return false;
@@ -3738,25 +3716,25 @@ static bool perf_rotate_context(struct perf_cpu_context *cpuctx)
perf_pmu_disable(cpuctx->ctx.pmu);
if (task_rotate)
- task_event = ctx_event_to_rotate(task_ctx);
+ task_event = ctx_first_active(ctx);
if (cpu_rotate)
- cpu_event = ctx_event_to_rotate(&cpuctx->ctx);
+ cpu_event = ctx_first_active(&cpuctx->ctx);
/*
* As per the order given at ctx_resched() first 'pop' task flexible
* and then, if needed CPU flexible.
*/
- if (task_event || (task_ctx && cpu_event))
- ctx_sched_out(task_ctx, cpuctx, EVENT_FLEXIBLE);
+ if (task_event || (ctx && cpu_event))
+ ctx_sched_out(ctx, cpuctx, EVENT_FLEXIBLE);
if (cpu_event)
cpu_ctx_sched_out(cpuctx, EVENT_FLEXIBLE);
if (task_event)
- rotate_ctx(task_ctx, task_event);
+ rotate_ctx(ctx, task_event);
if (cpu_event)
rotate_ctx(&cpuctx->ctx, cpu_event);
- perf_event_sched_in(cpuctx, task_ctx, current);
+ perf_event_sched_in(cpuctx, ctx, current);
perf_pmu_enable(cpuctx->ctx.pmu);
perf_ctx_unlock(cpuctx, cpuctx->task_ctx);
@@ -4149,8 +4127,9 @@ find_get_context(struct pmu *pmu, struct task_struct *task,
if (!task) {
/* Must be root to operate on a CPU event: */
- if (perf_paranoid_cpu() && !capable(CAP_SYS_ADMIN))
- return ERR_PTR(-EACCES);
+ err = perf_allow_cpu(&event->attr);
+ if (err)
+ return ERR_PTR(err);
cpuctx = per_cpu_ptr(pmu->pmu_cpu_context, cpu);
ctx = &cpuctx->ctx;
@@ -4456,6 +4435,8 @@ static void _free_event(struct perf_event *event)
unaccount_event(event);
+ security_perf_event_free(event);
+
if (event->rb) {
/*
* Can happen when we close an event with re-directed output.
@@ -4909,6 +4890,10 @@ perf_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
struct perf_event_context *ctx;
int ret;
+ ret = security_perf_event_read(event);
+ if (ret)
+ return ret;
+
ctx = perf_event_ctx_lock(event);
ret = __perf_read(event, buf, count);
perf_event_ctx_unlock(event, ctx);
@@ -5173,6 +5158,11 @@ static long perf_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
struct perf_event_context *ctx;
long ret;
+ /* Treat ioctl like writes as it is likely a mutating operation. */
+ ret = security_perf_event_write(event);
+ if (ret)
+ return ret;
+
ctx = perf_event_ctx_lock(event);
ret = _perf_ioctl(event, cmd, arg);
perf_event_ctx_unlock(event, ctx);
@@ -5636,6 +5626,10 @@ static int perf_mmap(struct file *file, struct vm_area_struct *vma)
if (!(vma->vm_flags & VM_SHARED))
return -EINVAL;
+ ret = security_perf_event_read(event);
+ if (ret)
+ return ret;
+
vma_size = vma->vm_end - vma->vm_start;
if (vma->vm_pgoff == 0) {
@@ -5757,7 +5751,7 @@ static int perf_mmap(struct file *file, struct vm_area_struct *vma)
lock_limit >>= PAGE_SHIFT;
locked = vma->vm_mm->pinned_vm + extra;
- if ((locked > lock_limit) && perf_paranoid_tracepoint_raw() &&
+ if ((locked > lock_limit) && perf_is_paranoid() &&
!capable(CAP_IPC_LOCK)) {
ret = -EPERM;
goto unlock;
@@ -10231,11 +10225,20 @@ perf_event_alloc(struct perf_event_attr *attr, int cpu,
}
}
+ err = security_perf_event_alloc(event);
+ if (err)
+ goto err_callchain_buffer;
+
/* symmetric to unaccount_event() in _free_event() */
account_event(event);
return event;
+err_callchain_buffer:
+ if (!event->parent) {
+ if (event->attr.sample_type & PERF_SAMPLE_CALLCHAIN)
+ put_callchain_buffers();
+ }
err_addr_filters:
kfree(event->addr_filter_ranges);
@@ -10353,9 +10356,11 @@ static int perf_copy_attr(struct perf_event_attr __user *uattr,
attr->branch_sample_type = mask;
}
/* privileged levels capture (kernel, hv): check permissions */
- if ((mask & PERF_SAMPLE_BRANCH_PERM_PLM)
- && perf_paranoid_kernel() && !capable(CAP_SYS_ADMIN))
- return -EACCES;
+ if (mask & PERF_SAMPLE_BRANCH_PERM_PLM) {
+ ret = perf_allow_kernel(attr);
+ if (ret)
+ return ret;
+ }
}
if (attr->sample_type & PERF_SAMPLE_REGS_USER) {
@@ -10568,13 +10573,19 @@ SYSCALL_DEFINE5(perf_event_open,
if (flags & ~PERF_FLAG_ALL)
return -EINVAL;
+ /* Do we allow access to perf_event_open(2) ? */
+ err = security_perf_event_open(&attr, PERF_SECURITY_OPEN);
+ if (err)
+ return err;
+
err = perf_copy_attr(attr_uptr, &attr);
if (err)
return err;
if (!attr.exclude_kernel) {
- if (perf_paranoid_kernel() && !capable(CAP_SYS_ADMIN))
- return -EACCES;
+ err = perf_allow_kernel(&attr);
+ if (err)
+ return err;
}
if (attr.namespaces) {
@@ -10591,9 +10602,11 @@ SYSCALL_DEFINE5(perf_event_open,
}
/* Only privileged users can get physical addresses */
- if ((attr.sample_type & PERF_SAMPLE_PHYS_ADDR) &&
- perf_paranoid_kernel() && !capable(CAP_SYS_ADMIN))
- return -EACCES;
+ if ((attr.sample_type & PERF_SAMPLE_PHYS_ADDR)) {
+ err = perf_allow_kernel(&attr);
+ if (err)
+ return err;
+ }
/*
* In cgroup mode, the pid argument is used to pass the fd
diff --git a/kernel/exit.c b/kernel/exit.c
index 908e7a3..f36ad1b 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -718,6 +718,7 @@ static void exit_notify(struct task_struct *tsk, int group_dead)
if (group_dead)
kill_orphaned_pgrp(tsk->group_leader, NULL);
+ tsk->exit_state = EXIT_ZOMBIE;
if (unlikely(tsk->ptrace)) {
int sig = thread_group_leader(tsk) &&
thread_group_empty(tsk) &&
diff --git a/kernel/fork.c b/kernel/fork.c
index b658716..1891a2a 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -11,6 +11,7 @@
* management can be a bitch. See 'mm/memory.c': 'copy_page_range()'
*/
+#include <linux/anon_inodes.h>
#include <linux/slab.h>
#include <linux/sched/autogroup.h>
#include <linux/sched/mm.h>
@@ -21,6 +22,7 @@
#include <linux/sched/task.h>
#include <linux/sched/task_stack.h>
#include <linux/sched/cputime.h>
+#include <linux/seq_file.h>
#include <linux/rtmutex.h>
#include <linux/init.h>
#include <linux/unistd.h>
@@ -91,6 +93,8 @@
#include <linux/kcov.h>
#include <linux/livepatch.h>
#include <linux/thread_info.h>
+#include <linux/cpufreq_times.h>
+#include <linux/scs.h>
#include <asm/pgtable.h>
#include <asm/pgalloc.h>
@@ -399,6 +403,9 @@ void put_task_stack(struct task_struct *tsk)
void free_task(struct task_struct *tsk)
{
+ cpufreq_task_times_exit(tsk);
+ scs_release(tsk);
+
#ifndef CONFIG_THREAD_INFO_IN_TASK
/*
* The task is finally done with both the stack and thread_info,
@@ -777,6 +784,8 @@ void __init fork_init(void)
NULL, free_vm_stack_cache);
#endif
+ scs_init();
+
lockdep_init_task(&init_task);
}
@@ -832,6 +841,10 @@ static struct task_struct *dup_task_struct(struct task_struct *orig, int node)
if (err)
goto free_stack;
+ err = scs_prepare(tsk, node);
+ if (err)
+ goto free_stack;
+
#ifdef CONFIG_SECCOMP
/*
* We must handle setting up seccomp filters once we're under
@@ -1192,7 +1205,9 @@ static int wait_for_vfork_done(struct task_struct *child,
int killed;
freezer_do_not_count();
+ cgroup_enter_frozen();
killed = wait_for_completion_killable(vfork);
+ cgroup_leave_frozen(false);
freezer_count();
if (killed) {
@@ -1644,6 +1659,84 @@ static __always_inline void delayed_free_task(struct task_struct *tsk)
free_task(tsk);
}
+static int pidfd_release(struct inode *inode, struct file *file)
+{
+ struct pid *pid = file->private_data;
+
+ file->private_data = NULL;
+ put_pid(pid);
+ return 0;
+}
+
+#ifdef CONFIG_PROC_FS
+static void pidfd_show_fdinfo(struct seq_file *m, struct file *f)
+{
+ struct pid_namespace *ns = proc_pid_ns(file_inode(m->file));
+ struct pid *pid = f->private_data;
+
+ seq_put_decimal_ull(m, "Pid:\t", pid_nr_ns(pid, ns));
+ seq_putc(m, '\n');
+}
+#endif
+
+/*
+ * Poll support for process exit notification.
+ */
+static __poll_t pidfd_poll(struct file *file, struct poll_table_struct *pts)
+{
+ struct task_struct *task;
+ struct pid *pid = file->private_data;
+ __poll_t poll_flags = 0;
+
+ poll_wait(file, &pid->wait_pidfd, pts);
+
+ rcu_read_lock();
+ task = pid_task(pid, PIDTYPE_PID);
+ /*
+ * Inform pollers only when the whole thread group exits.
+ * If the thread group leader exits before all other threads in the
+ * group, then poll(2) should block, similar to the wait(2) family.
+ */
+ if (!task || (task->exit_state && thread_group_empty(task)))
+ poll_flags = EPOLLIN | EPOLLRDNORM;
+ rcu_read_unlock();
+
+ return poll_flags;
+}
+
+const struct file_operations pidfd_fops = {
+ .release = pidfd_release,
+ .poll = pidfd_poll,
+#ifdef CONFIG_PROC_FS
+ .show_fdinfo = pidfd_show_fdinfo,
+#endif
+};
+
+/**
+ * pidfd_create() - Create a new pid file descriptor.
+ *
+ * @pid: struct pid that the pidfd will reference
+ *
+ * This creates a new pid file descriptor with the O_CLOEXEC flag set.
+ *
+ * Note, that this function can only be called after the fd table has
+ * been unshared to avoid leaking the pidfd to the new process.
+ *
+ * Return: On success, a cloexec pidfd is returned.
+ * On error, a negative errno number will be returned.
+ */
+static int pidfd_create(struct pid *pid)
+{
+ int fd;
+
+ fd = anon_inode_getfd("[pidfd]", &pidfd_fops, get_pid(pid),
+ O_RDWR | O_CLOEXEC);
+ if (fd < 0)
+ put_pid(pid);
+
+ return fd;
+}
+
static void copy_oom_score_adj(u64 clone_flags, struct task_struct *tsk)
{
/* Skip if kernel thread */
@@ -1675,13 +1768,14 @@ static __latent_entropy struct task_struct *copy_process(
unsigned long clone_flags,
unsigned long stack_start,
unsigned long stack_size,
+ int __user *parent_tidptr,
int __user *child_tidptr,
struct pid *pid,
int trace,
unsigned long tls,
int node)
{
- int retval;
+ int pidfd = -1, retval;
struct task_struct *p;
struct multiprocess_signals delayed;
@@ -1731,6 +1825,19 @@ static __latent_entropy struct task_struct *copy_process(
return ERR_PTR(-EINVAL);
}
+ if (clone_flags & CLONE_PIDFD) {
+ /*
+ * - CLONE_PARENT_SETTID is useless for pidfds and also
+ * parent_tidptr is used to return pidfds.
+ * - CLONE_DETACHED is blocked so that we can potentially
+ * reuse it later for CLONE_PIDFD.
+ * - CLONE_THREAD is blocked until someone really needs it.
+ */
+ if (clone_flags &
+ (CLONE_DETACHED | CLONE_PARENT_SETTID | CLONE_THREAD))
+ return ERR_PTR(-EINVAL);
+ }
+
/*
* Force any signals received before this point to be delivered
* before the fork happens. Collect up signals sent to multiple
@@ -1754,6 +1861,8 @@ static __latent_entropy struct task_struct *copy_process(
if (!p)
goto fork_out;
+ cpufreq_task_times_init(p);
+
/*
* This _must_ happen before we call free_task(), i.e. before we jump
* to any of the bad_fork_* labels. This is to avoid freeing
@@ -1825,6 +1934,10 @@ static __latent_entropy struct task_struct *copy_process(
p->default_timer_slack_ns = current->timer_slack_ns;
+#ifdef CONFIG_PSI
+ p->psi_flags = 0;
+#endif
+
task_io_accounting_init(&p->ioac);
acct_clear_integrals(p);
@@ -1931,6 +2044,22 @@ static __latent_entropy struct task_struct *copy_process(
}
}
+ /*
+ * This has to happen after we've potentially unshared the file
+ * descriptor table (so that the pidfd doesn't leak into the child
+ * if the fd table isn't shared).
+ */
+ if (clone_flags & CLONE_PIDFD) {
+ retval = pidfd_create(pid);
+ if (retval < 0)
+ goto bad_fork_free_pid;
+
+ pidfd = retval;
+ retval = put_user(pidfd, parent_tidptr);
+ if (retval)
+ goto bad_fork_put_pidfd;
+ }
+
#ifdef CONFIG_BLOCK
p->plug = NULL;
#endif
@@ -1980,7 +2109,7 @@ static __latent_entropy struct task_struct *copy_process(
*/
retval = cgroup_can_fork(p);
if (retval)
- goto bad_fork_free_pid;
+ goto bad_fork_cgroup_threadgroup_change_end;
/*
* From this point on we must avoid any synchronous user-space
@@ -2102,8 +2231,12 @@ static __latent_entropy struct task_struct *copy_process(
spin_unlock(¤t->sighand->siglock);
write_unlock_irq(&tasklist_lock);
cgroup_cancel_fork(p);
-bad_fork_free_pid:
+bad_fork_cgroup_threadgroup_change_end:
cgroup_threadgroup_change_end(current);
+bad_fork_put_pidfd:
+ if (clone_flags & CLONE_PIDFD)
+ ksys_close(pidfd);
+bad_fork_free_pid:
if (pid != &init_struct_pid)
free_pid(pid);
bad_fork_cleanup_thread:
@@ -2169,7 +2302,7 @@ static inline void init_idle_pids(struct task_struct *idle)
struct task_struct *fork_idle(int cpu)
{
struct task_struct *task;
- task = copy_process(CLONE_VM, 0, 0, NULL, &init_struct_pid, 0, 0,
+ task = copy_process(CLONE_VM, 0, 0, NULL, NULL, &init_struct_pid, 0, 0,
cpu_to_node(cpu));
if (!IS_ERR(task)) {
init_idle_pids(task);
@@ -2216,13 +2349,15 @@ long _do_fork(unsigned long clone_flags,
trace = 0;
}
- p = copy_process(clone_flags, stack_start, stack_size,
+ p = copy_process(clone_flags, stack_start, stack_size, parent_tidptr,
child_tidptr, NULL, trace, tls, NUMA_NO_NODE);
add_latent_entropy();
if (IS_ERR(p))
return PTR_ERR(p);
+ cpufreq_task_times_alloc(p);
+
/*
* Do this prior waking up the new thread - the thread pointer
* might get invalid after that point, if the thread exits quickly.
diff --git a/kernel/gcov/Kconfig b/kernel/gcov/Kconfig
index 1e3823f..f71c1ad 100644
--- a/kernel/gcov/Kconfig
+++ b/kernel/gcov/Kconfig
@@ -53,6 +53,7 @@
choice
prompt "Specify GCOV format"
depends on GCOV_KERNEL
+ depends on CC_IS_GCC
---help---
The gcov format is usually determined by the GCC version, and the
default is chosen according to your GCC version. However, there are
@@ -62,7 +63,7 @@
config GCOV_FORMAT_3_4
bool "GCC 3.4 format"
- depends on CC_IS_GCC && GCC_VERSION < 40700
+ depends on GCC_VERSION < 40700
---help---
Select this option to use the format defined by GCC 3.4.
diff --git a/kernel/gcov/Makefile b/kernel/gcov/Makefile
index ff06d64..d66a74b 100644
--- a/kernel/gcov/Makefile
+++ b/kernel/gcov/Makefile
@@ -2,5 +2,6 @@
ccflags-y := -DSRCTREE='"$(srctree)"' -DOBJTREE='"$(objtree)"'
obj-y := base.o fs.o
-obj-$(CONFIG_GCOV_FORMAT_3_4) += gcc_3_4.o
-obj-$(CONFIG_GCOV_FORMAT_4_7) += gcc_4_7.o
+obj-$(CONFIG_GCOV_FORMAT_3_4) += gcc_base.o gcc_3_4.o
+obj-$(CONFIG_GCOV_FORMAT_4_7) += gcc_base.o gcc_4_7.o
+obj-$(CONFIG_CC_IS_CLANG) += clang.o
diff --git a/kernel/gcov/base.c b/kernel/gcov/base.c
index 9c7c8d5..0ffe9f1 100644
--- a/kernel/gcov/base.c
+++ b/kernel/gcov/base.c
@@ -22,88 +22,8 @@
#include <linux/sched.h>
#include "gcov.h"
-static int gcov_events_enabled;
-static DEFINE_MUTEX(gcov_lock);
-
-/*
- * __gcov_init is called by gcc-generated constructor code for each object
- * file compiled with -fprofile-arcs.
- */
-void __gcov_init(struct gcov_info *info)
-{
- static unsigned int gcov_version;
-
- mutex_lock(&gcov_lock);
- if (gcov_version == 0) {
- gcov_version = gcov_info_version(info);
- /*
- * Printing gcc's version magic may prove useful for debugging
- * incompatibility reports.
- */
- pr_info("version magic: 0x%x\n", gcov_version);
- }
- /*
- * Add new profiling data structure to list and inform event
- * listener.
- */
- gcov_info_link(info);
- if (gcov_events_enabled)
- gcov_event(GCOV_ADD, info);
- mutex_unlock(&gcov_lock);
-}
-EXPORT_SYMBOL(__gcov_init);
-
-/*
- * These functions may be referenced by gcc-generated profiling code but serve
- * no function for kernel profiling.
- */
-void __gcov_flush(void)
-{
- /* Unused. */
-}
-EXPORT_SYMBOL(__gcov_flush);
-
-void __gcov_merge_add(gcov_type *counters, unsigned int n_counters)
-{
- /* Unused. */
-}
-EXPORT_SYMBOL(__gcov_merge_add);
-
-void __gcov_merge_single(gcov_type *counters, unsigned int n_counters)
-{
- /* Unused. */
-}
-EXPORT_SYMBOL(__gcov_merge_single);
-
-void __gcov_merge_delta(gcov_type *counters, unsigned int n_counters)
-{
- /* Unused. */
-}
-EXPORT_SYMBOL(__gcov_merge_delta);
-
-void __gcov_merge_ior(gcov_type *counters, unsigned int n_counters)
-{
- /* Unused. */
-}
-EXPORT_SYMBOL(__gcov_merge_ior);
-
-void __gcov_merge_time_profile(gcov_type *counters, unsigned int n_counters)
-{
- /* Unused. */
-}
-EXPORT_SYMBOL(__gcov_merge_time_profile);
-
-void __gcov_merge_icall_topn(gcov_type *counters, unsigned int n_counters)
-{
- /* Unused. */
-}
-EXPORT_SYMBOL(__gcov_merge_icall_topn);
-
-void __gcov_exit(void)
-{
- /* Unused. */
-}
-EXPORT_SYMBOL(__gcov_exit);
+int gcov_events_enabled;
+DEFINE_MUTEX(gcov_lock);
/**
* gcov_enable_events - enable event reporting through gcov_event()
@@ -144,7 +64,7 @@ static int gcov_module_notifier(struct notifier_block *nb, unsigned long event,
/* Remove entries located in module from linked list. */
while ((info = gcov_info_next(info))) {
- if (within_module((unsigned long)info, mod)) {
+ if (gcov_info_within_module(info, mod)) {
gcov_info_unlink(prev, info);
if (gcov_events_enabled)
gcov_event(GCOV_REMOVE, info);
diff --git a/kernel/gcov/clang.c b/kernel/gcov/clang.c
new file mode 100644
index 0000000..c94b820
--- /dev/null
+++ b/kernel/gcov/clang.c
@@ -0,0 +1,581 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 Google, Inc.
+ * modified from kernel/gcov/gcc_4_7.c
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ *
+ * LLVM uses profiling data that's deliberately similar to GCC, but has a
+ * very different way of exporting that data. LLVM calls llvm_gcov_init() once
+ * per module, and provides a couple of callbacks that we can use to ask for
+ * more data.
+ *
+ * We care about the "writeout" callback, which in turn calls back into
+ * compiler-rt/this module to dump all the gathered coverage data to disk:
+ *
+ * llvm_gcda_start_file()
+ * llvm_gcda_emit_function()
+ * llvm_gcda_emit_arcs()
+ * llvm_gcda_emit_function()
+ * llvm_gcda_emit_arcs()
+ * [... repeats for each function ...]
+ * llvm_gcda_summary_info()
+ * llvm_gcda_end_file()
+ *
+ * This design is much more stateless and unstructured than gcc's, and is
+ * intended to run at process exit. This forces us to keep some local state
+ * about which module we're dealing with at the moment. On the other hand, it
+ * also means we don't depend as much on how LLVM represents profiling data
+ * internally.
+ *
+ * See LLVM's lib/Transforms/Instrumentation/GCOVProfiling.cpp for more
+ * details on how this works, particularly GCOVProfiler::emitProfileArcs(),
+ * GCOVProfiler::insertCounterWriteout(), and
+ * GCOVProfiler::insertFlush().
+ */
+
+#define pr_fmt(fmt) "gcov: " fmt
+
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/printk.h>
+#include <linux/ratelimit.h>
+#include <linux/seq_file.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include "gcov.h"
+
+typedef void (*llvm_gcov_callback)(void);
+
+struct gcov_info {
+ struct list_head head;
+
+ const char *filename;
+ unsigned int version;
+ u32 checksum;
+
+ struct list_head functions;
+};
+
+struct gcov_fn_info {
+ struct list_head head;
+
+ u32 ident;
+ u32 checksum;
+ u8 use_extra_checksum;
+ u32 cfg_checksum;
+
+ u32 num_counters;
+ u64 *counters;
+ const char *function_name;
+};
+
+static struct gcov_info *current_info;
+
+static LIST_HEAD(clang_gcov_list);
+
+void llvm_gcov_init(llvm_gcov_callback writeout, llvm_gcov_callback flush)
+{
+ struct gcov_info *info = kzalloc(sizeof(*info), GFP_KERNEL);
+
+ if (!info)
+ return;
+
+ INIT_LIST_HEAD(&info->head);
+ INIT_LIST_HEAD(&info->functions);
+
+ mutex_lock(&gcov_lock);
+
+ list_add_tail(&info->head, &clang_gcov_list);
+ current_info = info;
+ writeout();
+ current_info = NULL;
+ if (gcov_events_enabled)
+ gcov_event(GCOV_ADD, info);
+
+ mutex_unlock(&gcov_lock);
+}
+EXPORT_SYMBOL(llvm_gcov_init);
+
+void llvm_gcda_start_file(const char *orig_filename, const char version[4],
+ u32 checksum)
+{
+ current_info->filename = orig_filename;
+ memcpy(¤t_info->version, version, sizeof(current_info->version));
+ current_info->checksum = checksum;
+}
+EXPORT_SYMBOL(llvm_gcda_start_file);
+
+void llvm_gcda_emit_function(u32 ident, const char *function_name,
+ u32 func_checksum, u8 use_extra_checksum, u32 cfg_checksum)
+{
+ struct gcov_fn_info *info = kzalloc(sizeof(*info), GFP_KERNEL);
+
+ if (!info)
+ return;
+
+ INIT_LIST_HEAD(&info->head);
+ info->ident = ident;
+ info->checksum = func_checksum;
+ info->use_extra_checksum = use_extra_checksum;
+ info->cfg_checksum = cfg_checksum;
+ if (function_name)
+ info->function_name = kstrdup(function_name, GFP_KERNEL);
+
+ list_add_tail(&info->head, ¤t_info->functions);
+}
+EXPORT_SYMBOL(llvm_gcda_emit_function);
+
+void llvm_gcda_emit_arcs(u32 num_counters, u64 *counters)
+{
+ struct gcov_fn_info *info = list_last_entry(¤t_info->functions,
+ struct gcov_fn_info, head);
+
+ info->num_counters = num_counters;
+ info->counters = counters;
+}
+EXPORT_SYMBOL(llvm_gcda_emit_arcs);
+
+void llvm_gcda_summary_info(void)
+{
+}
+EXPORT_SYMBOL(llvm_gcda_summary_info);
+
+void llvm_gcda_end_file(void)
+{
+}
+EXPORT_SYMBOL(llvm_gcda_end_file);
+
+/**
+ * gcov_info_filename - return info filename
+ * @info: profiling data set
+ */
+const char *gcov_info_filename(struct gcov_info *info)
+{
+ return info->filename;
+}
+
+/**
+ * gcov_info_version - return info version
+ * @info: profiling data set
+ */
+unsigned int gcov_info_version(struct gcov_info *info)
+{
+ return info->version;
+}
+
+/**
+ * gcov_info_next - return next profiling data set
+ * @info: profiling data set
+ *
+ * Returns next gcov_info following @info or first gcov_info in the chain if
+ * @info is %NULL.
+ */
+struct gcov_info *gcov_info_next(struct gcov_info *info)
+{
+ if (!info)
+ return list_first_entry_or_null(&clang_gcov_list,
+ struct gcov_info, head);
+ if (list_is_last(&info->head, &clang_gcov_list))
+ return NULL;
+ return list_next_entry(info, head);
+}
+
+/**
+ * gcov_info_link - link/add profiling data set to the list
+ * @info: profiling data set
+ */
+void gcov_info_link(struct gcov_info *info)
+{
+ list_add_tail(&info->head, &clang_gcov_list);
+}
+
+/**
+ * gcov_info_unlink - unlink/remove profiling data set from the list
+ * @prev: previous profiling data set
+ * @info: profiling data set
+ */
+void gcov_info_unlink(struct gcov_info *prev, struct gcov_info *info)
+{
+ /* Generic code unlinks while iterating. */
+ __list_del_entry(&info->head);
+}
+
+/**
+ * gcov_info_within_module - check if a profiling data set belongs to a module
+ * @info: profiling data set
+ * @mod: module
+ *
+ * Returns true if profiling data belongs module, false otherwise.
+ */
+bool gcov_info_within_module(struct gcov_info *info, struct module *mod)
+{
+ return within_module((unsigned long)info->filename, mod);
+}
+
+/* Symbolic links to be created for each profiling data file. */
+const struct gcov_link gcov_link[] = {
+ { OBJ_TREE, "gcno" }, /* Link to .gcno file in $(objtree). */
+ { 0, NULL},
+};
+
+/**
+ * gcov_info_reset - reset profiling data to zero
+ * @info: profiling data set
+ */
+void gcov_info_reset(struct gcov_info *info)
+{
+ struct gcov_fn_info *fn;
+
+ list_for_each_entry(fn, &info->functions, head)
+ memset(fn->counters, 0,
+ sizeof(fn->counters[0]) * fn->num_counters);
+}
+
+/**
+ * gcov_info_is_compatible - check if profiling data can be added
+ * @info1: first profiling data set
+ * @info2: second profiling data set
+ *
+ * Returns non-zero if profiling data can be added, zero otherwise.
+ */
+int gcov_info_is_compatible(struct gcov_info *info1, struct gcov_info *info2)
+{
+ struct gcov_fn_info *fn_ptr1 = list_first_entry_or_null(
+ &info1->functions, struct gcov_fn_info, head);
+ struct gcov_fn_info *fn_ptr2 = list_first_entry_or_null(
+ &info2->functions, struct gcov_fn_info, head);
+
+ if (info1->checksum != info2->checksum)
+ return false;
+ if (!fn_ptr1)
+ return fn_ptr1 == fn_ptr2;
+ while (!list_is_last(&fn_ptr1->head, &info1->functions) &&
+ !list_is_last(&fn_ptr2->head, &info2->functions)) {
+ if (fn_ptr1->checksum != fn_ptr2->checksum)
+ return false;
+ if (fn_ptr1->use_extra_checksum != fn_ptr2->use_extra_checksum)
+ return false;
+ if (fn_ptr1->use_extra_checksum &&
+ fn_ptr1->cfg_checksum != fn_ptr2->cfg_checksum)
+ return false;
+ fn_ptr1 = list_next_entry(fn_ptr1, head);
+ fn_ptr2 = list_next_entry(fn_ptr2, head);
+ }
+ return list_is_last(&fn_ptr1->head, &info1->functions) &&
+ list_is_last(&fn_ptr2->head, &info2->functions);
+}
+
+/**
+ * gcov_info_add - add up profiling data
+ * @dest: profiling data set to which data is added
+ * @source: profiling data set which is added
+ *
+ * Adds profiling counts of @source to @dest.
+ */
+void gcov_info_add(struct gcov_info *dst, struct gcov_info *src)
+{
+ struct gcov_fn_info *dfn_ptr;
+ struct gcov_fn_info *sfn_ptr = list_first_entry_or_null(&src->functions,
+ struct gcov_fn_info, head);
+
+ list_for_each_entry(dfn_ptr, &dst->functions, head) {
+ u32 i;
+
+ for (i = 0; i < sfn_ptr->num_counters; i++)
+ dfn_ptr->counters[i] += sfn_ptr->counters[i];
+ }
+}
+
+static struct gcov_fn_info *gcov_fn_info_dup(struct gcov_fn_info *fn)
+{
+ size_t cv_size; /* counter values size */
+ struct gcov_fn_info *fn_dup = kmemdup(fn, sizeof(*fn),
+ GFP_KERNEL);
+ if (!fn_dup)
+ return NULL;
+ INIT_LIST_HEAD(&fn_dup->head);
+
+ fn_dup->function_name = kstrdup(fn->function_name, GFP_KERNEL);
+ if (!fn_dup->function_name)
+ goto err_name;
+
+ cv_size = fn->num_counters * sizeof(fn->counters[0]);
+ fn_dup->counters = vmalloc(cv_size);
+ if (!fn_dup->counters)
+ goto err_counters;
+ memcpy(fn_dup->counters, fn->counters, cv_size);
+
+ return fn_dup;
+
+err_counters:
+ kfree(fn_dup->function_name);
+err_name:
+ kfree(fn_dup);
+ return NULL;
+}
+
+/**
+ * gcov_info_dup - duplicate profiling data set
+ * @info: profiling data set to duplicate
+ *
+ * Return newly allocated duplicate on success, %NULL on error.
+ */
+struct gcov_info *gcov_info_dup(struct gcov_info *info)
+{
+ struct gcov_info *dup;
+ struct gcov_fn_info *fn;
+
+ dup = kmemdup(info, sizeof(*dup), GFP_KERNEL);
+ if (!dup)
+ return NULL;
+ INIT_LIST_HEAD(&dup->head);
+ INIT_LIST_HEAD(&dup->functions);
+ dup->filename = kstrdup(info->filename, GFP_KERNEL);
+ if (!dup->filename)
+ goto err;
+
+ list_for_each_entry(fn, &info->functions, head) {
+ struct gcov_fn_info *fn_dup = gcov_fn_info_dup(fn);
+
+ if (!fn_dup)
+ goto err;
+ list_add_tail(&fn_dup->head, &dup->functions);
+ }
+
+ return dup;
+
+err:
+ gcov_info_free(dup);
+ return NULL;
+}
+
+/**
+ * gcov_info_free - release memory for profiling data set duplicate
+ * @info: profiling data set duplicate to free
+ */
+void gcov_info_free(struct gcov_info *info)
+{
+ struct gcov_fn_info *fn, *tmp;
+
+ list_for_each_entry_safe(fn, tmp, &info->functions, head) {
+ kfree(fn->function_name);
+ vfree(fn->counters);
+ list_del(&fn->head);
+ kfree(fn);
+ }
+ kfree(info->filename);
+ kfree(info);
+}
+
+#define ITER_STRIDE PAGE_SIZE
+
+/**
+ * struct gcov_iterator - specifies current file position in logical records
+ * @info: associated profiling data
+ * @buffer: buffer containing file data
+ * @size: size of buffer
+ * @pos: current position in file
+ */
+struct gcov_iterator {
+ struct gcov_info *info;
+ void *buffer;
+ size_t size;
+ loff_t pos;
+};
+
+/**
+ * store_gcov_u32 - store 32 bit number in gcov format to buffer
+ * @buffer: target buffer or NULL
+ * @off: offset into the buffer
+ * @v: value to be stored
+ *
+ * Number format defined by gcc: numbers are recorded in the 32 bit
+ * unsigned binary form of the endianness of the machine generating the
+ * file. Returns the number of bytes stored. If @buffer is %NULL, doesn't
+ * store anything.
+ */
+static size_t store_gcov_u32(void *buffer, size_t off, u32 v)
+{
+ u32 *data;
+
+ if (buffer) {
+ data = buffer + off;
+ *data = v;
+ }
+
+ return sizeof(*data);
+}
+
+/**
+ * store_gcov_u64 - store 64 bit number in gcov format to buffer
+ * @buffer: target buffer or NULL
+ * @off: offset into the buffer
+ * @v: value to be stored
+ *
+ * Number format defined by gcc: numbers are recorded in the 32 bit
+ * unsigned binary form of the endianness of the machine generating the
+ * file. 64 bit numbers are stored as two 32 bit numbers, the low part
+ * first. Returns the number of bytes stored. If @buffer is %NULL, doesn't store
+ * anything.
+ */
+static size_t store_gcov_u64(void *buffer, size_t off, u64 v)
+{
+ u32 *data;
+
+ if (buffer) {
+ data = buffer + off;
+
+ data[0] = (v & 0xffffffffUL);
+ data[1] = (v >> 32);
+ }
+
+ return sizeof(*data) * 2;
+}
+
+/**
+ * convert_to_gcda - convert profiling data set to gcda file format
+ * @buffer: the buffer to store file data or %NULL if no data should be stored
+ * @info: profiling data set to be converted
+ *
+ * Returns the number of bytes that were/would have been stored into the buffer.
+ */
+static size_t convert_to_gcda(char *buffer, struct gcov_info *info)
+{
+ struct gcov_fn_info *fi_ptr;
+ size_t pos = 0;
+
+ /* File header. */
+ pos += store_gcov_u32(buffer, pos, GCOV_DATA_MAGIC);
+ pos += store_gcov_u32(buffer, pos, info->version);
+ pos += store_gcov_u32(buffer, pos, info->checksum);
+
+ list_for_each_entry(fi_ptr, &info->functions, head) {
+ u32 i;
+ u32 len = 2;
+
+ if (fi_ptr->use_extra_checksum)
+ len++;
+
+ pos += store_gcov_u32(buffer, pos, GCOV_TAG_FUNCTION);
+ pos += store_gcov_u32(buffer, pos, len);
+ pos += store_gcov_u32(buffer, pos, fi_ptr->ident);
+ pos += store_gcov_u32(buffer, pos, fi_ptr->checksum);
+ if (fi_ptr->use_extra_checksum)
+ pos += store_gcov_u32(buffer, pos, fi_ptr->cfg_checksum);
+
+ pos += store_gcov_u32(buffer, pos, GCOV_TAG_COUNTER_BASE);
+ pos += store_gcov_u32(buffer, pos, fi_ptr->num_counters * 2);
+ for (i = 0; i < fi_ptr->num_counters; i++)
+ pos += store_gcov_u64(buffer, pos, fi_ptr->counters[i]);
+ }
+
+ return pos;
+}
+
+/**
+ * gcov_iter_new - allocate and initialize profiling data iterator
+ * @info: profiling data set to be iterated
+ *
+ * Return file iterator on success, %NULL otherwise.
+ */
+struct gcov_iterator *gcov_iter_new(struct gcov_info *info)
+{
+ struct gcov_iterator *iter;
+
+ iter = kzalloc(sizeof(struct gcov_iterator), GFP_KERNEL);
+ if (!iter)
+ goto err_free;
+
+ iter->info = info;
+ /* Dry-run to get the actual buffer size. */
+ iter->size = convert_to_gcda(NULL, info);
+ iter->buffer = vmalloc(iter->size);
+ if (!iter->buffer)
+ goto err_free;
+
+ convert_to_gcda(iter->buffer, info);
+
+ return iter;
+
+err_free:
+ kfree(iter);
+ return NULL;
+}
+
+
+/**
+ * gcov_iter_get_info - return profiling data set for given file iterator
+ * @iter: file iterator
+ */
+void gcov_iter_free(struct gcov_iterator *iter)
+{
+ vfree(iter->buffer);
+ kfree(iter);
+}
+
+/**
+ * gcov_iter_get_info - return profiling data set for given file iterator
+ * @iter: file iterator
+ */
+struct gcov_info *gcov_iter_get_info(struct gcov_iterator *iter)
+{
+ return iter->info;
+}
+
+/**
+ * gcov_iter_start - reset file iterator to starting position
+ * @iter: file iterator
+ */
+void gcov_iter_start(struct gcov_iterator *iter)
+{
+ iter->pos = 0;
+}
+
+/**
+ * gcov_iter_next - advance file iterator to next logical record
+ * @iter: file iterator
+ *
+ * Return zero if new position is valid, non-zero if iterator has reached end.
+ */
+int gcov_iter_next(struct gcov_iterator *iter)
+{
+ if (iter->pos < iter->size)
+ iter->pos += ITER_STRIDE;
+
+ if (iter->pos >= iter->size)
+ return -EINVAL;
+
+ return 0;
+}
+
+/**
+ * gcov_iter_write - write data for current pos to seq_file
+ * @iter: file iterator
+ * @seq: seq_file handle
+ *
+ * Return zero on success, non-zero otherwise.
+ */
+int gcov_iter_write(struct gcov_iterator *iter, struct seq_file *seq)
+{
+ size_t len;
+
+ if (iter->pos >= iter->size)
+ return -EINVAL;
+
+ len = ITER_STRIDE;
+ if (iter->pos + len > iter->size)
+ len = iter->size - iter->pos;
+
+ seq_write(seq, iter->buffer + iter->pos, len);
+
+ return 0;
+}
diff --git a/kernel/gcov/gcc_3_4.c b/kernel/gcov/gcc_3_4.c
index 1e32e66..64d2dd9 100644
--- a/kernel/gcov/gcc_3_4.c
+++ b/kernel/gcov/gcc_3_4.c
@@ -137,6 +137,18 @@ void gcov_info_unlink(struct gcov_info *prev, struct gcov_info *info)
gcov_info_head = info->next;
}
+/**
+ * gcov_info_within_module - check if a profiling data set belongs to a module
+ * @info: profiling data set
+ * @mod: module
+ *
+ * Returns true if profiling data belongs module, false otherwise.
+ */
+bool gcov_info_within_module(struct gcov_info *info, struct module *mod)
+{
+ return within_module((unsigned long)info, mod);
+}
+
/* Symbolic links to be created for each profiling data file. */
const struct gcov_link gcov_link[] = {
{ OBJ_TREE, "gcno" }, /* Link to .gcno file in $(objtree). */
diff --git a/kernel/gcov/gcc_4_7.c b/kernel/gcov/gcc_4_7.c
index 5b9e761..60c7be5 100644
--- a/kernel/gcov/gcc_4_7.c
+++ b/kernel/gcov/gcc_4_7.c
@@ -152,6 +152,18 @@ void gcov_info_unlink(struct gcov_info *prev, struct gcov_info *info)
gcov_info_head = info->next;
}
+/**
+ * gcov_info_within_module - check if a profiling data set belongs to a module
+ * @info: profiling data set
+ * @mod: module
+ *
+ * Returns true if profiling data belongs module, false otherwise.
+ */
+bool gcov_info_within_module(struct gcov_info *info, struct module *mod)
+{
+ return within_module((unsigned long)info, mod);
+}
+
/* Symbolic links to be created for each profiling data file. */
const struct gcov_link gcov_link[] = {
{ OBJ_TREE, "gcno" }, /* Link to .gcno file in $(objtree). */
diff --git a/kernel/gcov/gcc_base.c b/kernel/gcov/gcc_base.c
new file mode 100644
index 0000000..3cf736b
--- /dev/null
+++ b/kernel/gcov/gcc_base.c
@@ -0,0 +1,86 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/export.h>
+#include <linux/kernel.h>
+#include <linux/mutex.h>
+#include "gcov.h"
+
+/*
+ * __gcov_init is called by gcc-generated constructor code for each object
+ * file compiled with -fprofile-arcs.
+ */
+void __gcov_init(struct gcov_info *info)
+{
+ static unsigned int gcov_version;
+
+ mutex_lock(&gcov_lock);
+ if (gcov_version == 0) {
+ gcov_version = gcov_info_version(info);
+ /*
+ * Printing gcc's version magic may prove useful for debugging
+ * incompatibility reports.
+ */
+ pr_info("version magic: 0x%x\n", gcov_version);
+ }
+ /*
+ * Add new profiling data structure to list and inform event
+ * listener.
+ */
+ gcov_info_link(info);
+ if (gcov_events_enabled)
+ gcov_event(GCOV_ADD, info);
+ mutex_unlock(&gcov_lock);
+}
+EXPORT_SYMBOL(__gcov_init);
+
+/*
+ * These functions may be referenced by gcc-generated profiling code but serve
+ * no function for kernel profiling.
+ */
+void __gcov_flush(void)
+{
+ /* Unused. */
+}
+EXPORT_SYMBOL(__gcov_flush);
+
+void __gcov_merge_add(gcov_type *counters, unsigned int n_counters)
+{
+ /* Unused. */
+}
+EXPORT_SYMBOL(__gcov_merge_add);
+
+void __gcov_merge_single(gcov_type *counters, unsigned int n_counters)
+{
+ /* Unused. */
+}
+EXPORT_SYMBOL(__gcov_merge_single);
+
+void __gcov_merge_delta(gcov_type *counters, unsigned int n_counters)
+{
+ /* Unused. */
+}
+EXPORT_SYMBOL(__gcov_merge_delta);
+
+void __gcov_merge_ior(gcov_type *counters, unsigned int n_counters)
+{
+ /* Unused. */
+}
+EXPORT_SYMBOL(__gcov_merge_ior);
+
+void __gcov_merge_time_profile(gcov_type *counters, unsigned int n_counters)
+{
+ /* Unused. */
+}
+EXPORT_SYMBOL(__gcov_merge_time_profile);
+
+void __gcov_merge_icall_topn(gcov_type *counters, unsigned int n_counters)
+{
+ /* Unused. */
+}
+EXPORT_SYMBOL(__gcov_merge_icall_topn);
+
+void __gcov_exit(void)
+{
+ /* Unused. */
+}
+EXPORT_SYMBOL(__gcov_exit);
diff --git a/kernel/gcov/gcov.h b/kernel/gcov/gcov.h
index de118ad..6ab2c18 100644
--- a/kernel/gcov/gcov.h
+++ b/kernel/gcov/gcov.h
@@ -15,6 +15,7 @@
#ifndef GCOV_H
#define GCOV_H GCOV_H
+#include <linux/module.h>
#include <linux/types.h>
/*
@@ -46,6 +47,7 @@ unsigned int gcov_info_version(struct gcov_info *info);
struct gcov_info *gcov_info_next(struct gcov_info *info);
void gcov_info_link(struct gcov_info *info);
void gcov_info_unlink(struct gcov_info *prev, struct gcov_info *info);
+bool gcov_info_within_module(struct gcov_info *info, struct module *mod);
/* Base interface. */
enum gcov_action {
@@ -83,4 +85,7 @@ struct gcov_link {
};
extern const struct gcov_link gcov_link[];
+extern int gcov_events_enabled;
+extern struct mutex gcov_lock;
+
#endif /* GCOV_H */
diff --git a/kernel/gen_kheaders.sh b/kernel/gen_kheaders.sh
new file mode 100755
index 0000000..9ff4498
--- /dev/null
+++ b/kernel/gen_kheaders.sh
@@ -0,0 +1,81 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This script generates an archive consisting of kernel headers
+# for CONFIG_IKHEADERS.
+set -e
+sfile="$(readlink -f "$0")"
+outdir="$(pwd)"
+tarfile=$1
+cpio_dir=$outdir/$tarfile.tmp
+
+dir_list="
+include/
+arch/$SRCARCH/include/
+"
+
+# Support incremental builds by skipping archive generation
+# if timestamps of files being archived are not changed.
+
+# This block is useful for debugging the incremental builds.
+# Uncomment it for debugging.
+# if [ ! -f /tmp/iter ]; then iter=1; echo 1 > /tmp/iter;
+# else iter=$(($(cat /tmp/iter) + 1)); echo $iter > /tmp/iter; fi
+# find $src_file_list -name "*.h" | xargs ls -l > /tmp/src-ls-$iter
+# find $obj_file_list -name "*.h" | xargs ls -l > /tmp/obj-ls-$iter
+
+# include/generated/compile.h is ignored because it is touched even when none
+# of the source files changed. This causes pointless regeneration, so let us
+# ignore them for md5 calculation.
+pushd $srctree > /dev/null
+src_files_md5="$(find $dir_list -name "*.h" |
+ grep -v "include/generated/compile.h" |
+ grep -v "include/generated/autoconf.h" |
+ xargs ls -l | md5sum | cut -d ' ' -f1)"
+popd > /dev/null
+obj_files_md5="$(find $dir_list -name "*.h" |
+ grep -v "include/generated/compile.h" |
+ grep -v "include/generated/autoconf.h" |
+ xargs ls -l | md5sum | cut -d ' ' -f1)"
+# Any changes to this script will also cause a rebuild of the archive.
+this_file_md5="$(ls -l $sfile | md5sum | cut -d ' ' -f1)"
+if [ -f $tarfile ]; then tarfile_md5="$(md5sum $tarfile | cut -d ' ' -f1)"; fi
+if [ -f kernel/kheaders.md5 ] &&
+ [ "$(cat kernel/kheaders.md5|head -1)" == "$src_files_md5" ] &&
+ [ "$(cat kernel/kheaders.md5|head -2|tail -1)" == "$obj_files_md5" ] &&
+ [ "$(cat kernel/kheaders.md5|head -3|tail -1)" == "$this_file_md5" ] &&
+ [ "$(cat kernel/kheaders.md5|tail -1)" == "$tarfile_md5" ]; then
+ exit
+fi
+
+if [ "${quiet}" != "silent_" ]; then
+ echo " GEN $tarfile"
+fi
+
+rm -rf $cpio_dir
+mkdir $cpio_dir
+
+pushd $srctree > /dev/null
+for f in $dir_list;
+ do find "$f" -name "*.h";
+done | cpio --quiet -pd $cpio_dir
+popd > /dev/null
+
+# The second CPIO can complain if files already exist which can
+# happen with out of tree builds. Just silence CPIO for now.
+for f in $dir_list;
+ do find "$f" -name "*.h";
+done | cpio --quiet -pd $cpio_dir >/dev/null 2>&1
+
+# Remove comments except SDPX lines
+find $cpio_dir -type f -print0 |
+ xargs -0 -P8 -n1 perl -pi -e 'BEGIN {undef $/;}; s/\/\*((?!SPDX).)*?\*\///smg;'
+
+tar -Jcf $tarfile -C $cpio_dir/ . > /dev/null
+
+echo "$src_files_md5" > kernel/kheaders.md5
+echo "$obj_files_md5" >> kernel/kheaders.md5
+echo "$this_file_md5" >> kernel/kheaders.md5
+echo "$(md5sum $tarfile | cut -d ' ' -f1)" >> kernel/kheaders.md5
+
+rm -rf $cpio_dir
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 9afbd89..2f4b9cd 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -14,6 +14,7 @@
#include <linux/interrupt.h>
#include <linux/kernel_stat.h>
#include <linux/irqdomain.h>
+#include <linux/wakeup_reason.h>
#include <trace/events/irq.h>
@@ -510,8 +511,22 @@ static bool irq_may_run(struct irq_desc *desc)
* If the interrupt is not in progress and is not an armed
* wakeup interrupt, proceed.
*/
- if (!irqd_has_set(&desc->irq_data, mask))
+ if (!irqd_has_set(&desc->irq_data, mask)) {
+#ifdef CONFIG_PM_SLEEP
+ if (unlikely(desc->no_suspend_depth &&
+ irqd_is_wakeup_set(&desc->irq_data))) {
+ unsigned int irq = irq_desc_get_irq(desc);
+ const char *name = "(unnamed)";
+
+ if (desc->action && desc->action->name)
+ name = desc->action->name;
+
+ log_abnormal_wakeup_reason("misconfigured IRQ %u %s",
+ irq, name);
+ }
+#endif
return true;
+ }
/*
* If the interrupt is an armed wakeup source, mark it pending
@@ -1243,6 +1258,50 @@ EXPORT_SYMBOL_GPL(handle_fasteoi_mask_irq);
#endif /* CONFIG_IRQ_FASTEOI_HIERARCHY_HANDLERS */
/**
+ * irq_chip_set_parent_state - set the state of a parent interrupt.
+ * @data: Pointer to interrupt specific data
+ * @which: State to be restored (one of IRQCHIP_STATE_*)
+ * @val: Value corresponding to @which
+ *
+ */
+int irq_chip_set_parent_state(struct irq_data *data,
+ enum irqchip_irq_state which,
+ bool val)
+{
+ data = data->parent_data;
+ if (!data)
+ return 0;
+
+ if (data->chip->irq_set_irqchip_state)
+ return data->chip->irq_set_irqchip_state(data, which, val);
+
+ return 0;
+}
+EXPORT_SYMBOL(irq_chip_set_parent_state);
+
+/**
+ * irq_chip_get_parent_state - get the state of a parent interrupt.
+ * @data: Pointer to interrupt specific data
+ * @which: one of IRQCHIP_STATE_* the caller wants to know
+ * @state: a pointer to a boolean where the state is to be stored
+ *
+ */
+int irq_chip_get_parent_state(struct irq_data *data,
+ enum irqchip_irq_state which,
+ bool *state)
+{
+ data = data->parent_data;
+ if (!data)
+ return 0;
+
+ if (data->chip->irq_get_irqchip_state)
+ return data->chip->irq_get_irqchip_state(data, which, state);
+
+ return 0;
+}
+EXPORT_SYMBOL(irq_chip_get_parent_state);
+
+/**
* irq_chip_enable_parent - Enable the parent interrupt (defaults to unmask if
* NULL)
* @data: Pointer to interrupt specific data
@@ -1368,6 +1427,7 @@ int irq_chip_retrigger_hierarchy(struct irq_data *data)
return 0;
}
+EXPORT_SYMBOL_GPL(irq_chip_retrigger_hierarchy);
/**
* irq_chip_set_vcpu_affinity_parent - Set vcpu affinity on the parent interrupt
@@ -1382,6 +1442,7 @@ int irq_chip_set_vcpu_affinity_parent(struct irq_data *data, void *vcpu_info)
return -ENOSYS;
}
+EXPORT_SYMBOL_GPL(irq_chip_set_vcpu_affinity_parent);
/**
* irq_chip_set_wake_parent - Set/reset wake-up on the parent interrupt
@@ -1402,6 +1463,7 @@ int irq_chip_set_wake_parent(struct irq_data *data, unsigned int on)
return -ENOSYS;
}
+EXPORT_SYMBOL_GPL(irq_chip_set_wake_parent);
#endif
/**
diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
index 26814a1..d2496a5 100644
--- a/kernel/irq/irqdesc.c
+++ b/kernel/irq/irqdesc.c
@@ -962,3 +962,4 @@ unsigned int kstat_irqs_usr(unsigned int irq)
rcu_read_unlock();
return sum;
}
+EXPORT_SYMBOL_GPL(kstat_irqs_usr);
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 1e42fc2..e3ac5a5a 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -295,6 +295,7 @@ void irq_domain_update_bus_token(struct irq_domain *domain,
mutex_unlock(&irq_domain_mutex);
}
+EXPORT_SYMBOL_GPL(irq_domain_update_bus_token);
/**
* irq_domain_add_simple() - Register an irq_domain and optionally map a range of irqs
@@ -1242,6 +1243,7 @@ void irq_domain_free_irqs_top(struct irq_domain *domain, unsigned int virq,
}
irq_domain_free_irqs_common(domain, virq, nr_irqs);
}
+EXPORT_SYMBOL_GPL(irq_domain_free_irqs_top);
static void irq_domain_free_irqs_hierarchy(struct irq_domain *domain,
unsigned int irq_base,
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index c377dbb..39d6bc9 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -345,6 +345,7 @@ int __irq_set_affinity(unsigned int irq, const struct cpumask *mask, bool force)
raw_spin_unlock_irqrestore(&desc->lock, flags);
return ret;
}
+EXPORT_SYMBOL_GPL(__irq_set_affinity);
int irq_set_affinity_hint(unsigned int irq, const struct cpumask *m)
{
diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index 6df6d62..b8ec1db 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -173,7 +173,6 @@ unsigned long kallsyms_lookup_name(const char *name)
}
return module_kallsyms_lookup_name(name);
}
-EXPORT_SYMBOL_GPL(kallsyms_lookup_name);
int kallsyms_on_each_symbol(int (*fn)(void *, const char *, struct module *,
unsigned long),
@@ -192,7 +191,6 @@ int kallsyms_on_each_symbol(int (*fn)(void *, const char *, struct module *,
}
return module_kallsyms_on_each_symbol(fn, data);
}
-EXPORT_SYMBOL_GPL(kallsyms_on_each_symbol);
static unsigned long get_symbol_pos(unsigned long addr,
unsigned long *symbolsize,
@@ -270,6 +268,30 @@ int kallsyms_lookup_size_offset(unsigned long addr, unsigned long *symbolsize,
!!__bpf_address_lookup(addr, symbolsize, offset, namebuf);
}
+#ifdef CONFIG_CFI_CLANG
+/*
+ * LLVM appends .cfi to function names when CONFIG_CFI_CLANG is enabled,
+ * which causes confusion and potentially breaks user space tools, so we
+ * will strip the postfix from expanded symbol names.
+ */
+static inline void cleanup_symbol_name(char *s)
+{
+ char *res;
+
+#ifdef CONFIG_THINLTO
+ /* Filter out hashes from static functions */
+ res = strrchr(s, '$');
+ if (res)
+ *res = '\0';
+#endif
+ res = strrchr(s, '.');
+ if (res && !strcmp(res, ".cfi"))
+ *res = '\0';
+}
+#else
+static inline void cleanup_symbol_name(char *s) {}
+#endif
+
/*
* Lookup an address
* - modname is set to NULL if it's in the kernel.
@@ -296,7 +318,9 @@ const char *kallsyms_lookup(unsigned long addr,
namebuf, KSYM_NAME_LEN);
if (modname)
*modname = NULL;
- return namebuf;
+
+ ret = namebuf;
+ goto found;
}
/* See if it's in a module or a BPF JITed image. */
@@ -309,11 +333,16 @@ const char *kallsyms_lookup(unsigned long addr,
if (!ret)
ret = ftrace_mod_address_lookup(addr, symbolsize,
offset, modname, namebuf);
+
+found:
+ cleanup_symbol_name(namebuf);
return ret;
}
int lookup_symbol_name(unsigned long addr, char *symname)
{
+ int res;
+
symname[0] = '\0';
symname[KSYM_NAME_LEN - 1] = '\0';
@@ -324,15 +353,23 @@ int lookup_symbol_name(unsigned long addr, char *symname)
/* Grab name */
kallsyms_expand_symbol(get_symbol_offset(pos),
symname, KSYM_NAME_LEN);
- return 0;
+ goto found;
}
/* See if it's in a module. */
- return lookup_module_symbol_name(addr, symname);
+ res = lookup_module_symbol_name(addr, symname);
+ if (res)
+ return res;
+
+found:
+ cleanup_symbol_name(symname);
+ return 0;
}
int lookup_symbol_attrs(unsigned long addr, unsigned long *size,
unsigned long *offset, char *modname, char *name)
{
+ int res;
+
name[0] = '\0';
name[KSYM_NAME_LEN - 1] = '\0';
@@ -344,10 +381,16 @@ int lookup_symbol_attrs(unsigned long addr, unsigned long *size,
kallsyms_expand_symbol(get_symbol_offset(pos),
name, KSYM_NAME_LEN);
modname[0] = '\0';
- return 0;
+ goto found;
}
/* See if it's in a module. */
- return lookup_module_symbol_attrs(addr, size, offset, modname, name);
+ res = lookup_module_symbol_attrs(addr, size, offset, modname, name);
+ if (res)
+ return res;
+
+found:
+ cleanup_symbol_name(name);
+ return 0;
}
/* Look up a kernel symbol and return it in a text buffer. */
diff --git a/kernel/kcov.c b/kernel/kcov.c
index c2277db..f503542 100644
--- a/kernel/kcov.c
+++ b/kernel/kcov.c
@@ -9,6 +9,7 @@
#include <linux/types.h>
#include <linux/file.h>
#include <linux/fs.h>
+#include <linux/hashtable.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/preempt.h>
@@ -20,8 +21,12 @@
#include <linux/debugfs.h>
#include <linux/uaccess.h>
#include <linux/kcov.h>
+#include <linux/refcount.h>
+#include <linux/log2.h>
#include <asm/setup.h>
+#define kcov_debug(fmt, ...) pr_debug("%s: " fmt, __func__, ##__VA_ARGS__)
+
/* Number of 64-bit words written per one comparison: */
#define KCOV_WORDS_PER_CMP 4
@@ -43,19 +48,100 @@ struct kcov {
* Reference counter. We keep one for:
* - opened file descriptor
* - task with enabled coverage (we can't unwire it from another task)
+ * - each code section for remote coverage collection
*/
- atomic_t refcount;
+ refcount_t refcount;
/* The lock protects mode, size, area and t. */
spinlock_t lock;
enum kcov_mode mode;
- /* Size of arena (in long's for KCOV_MODE_TRACE). */
- unsigned size;
+ /* Size of arena (in long's). */
+ unsigned int size;
/* Coverage buffer shared with user space. */
void *area;
/* Task for which we collect coverage, or NULL. */
struct task_struct *t;
+ /* Collecting coverage from remote (background) threads. */
+ bool remote;
+ /* Size of remote area (in long's). */
+ unsigned int remote_size;
+ /*
+ * Sequence is incremented each time kcov is reenabled, used by
+ * kcov_remote_stop(), see the comment there.
+ */
+ int sequence;
};
+struct kcov_remote_area {
+ struct list_head list;
+ unsigned int size;
+};
+
+struct kcov_remote {
+ u64 handle;
+ struct kcov *kcov;
+ struct hlist_node hnode;
+};
+
+static DEFINE_SPINLOCK(kcov_remote_lock);
+static DEFINE_HASHTABLE(kcov_remote_map, 4);
+static struct list_head kcov_remote_areas = LIST_HEAD_INIT(kcov_remote_areas);
+
+/* Must be called with kcov_remote_lock locked. */
+static struct kcov_remote *kcov_remote_find(u64 handle)
+{
+ struct kcov_remote *remote;
+
+ hash_for_each_possible(kcov_remote_map, remote, hnode, handle) {
+ if (remote->handle == handle)
+ return remote;
+ }
+ return NULL;
+}
+
+static struct kcov_remote *kcov_remote_add(struct kcov *kcov, u64 handle)
+{
+ struct kcov_remote *remote;
+
+ if (kcov_remote_find(handle))
+ return ERR_PTR(-EEXIST);
+ remote = kmalloc(sizeof(*remote), GFP_ATOMIC);
+ if (!remote)
+ return ERR_PTR(-ENOMEM);
+ remote->handle = handle;
+ remote->kcov = kcov;
+ hash_add(kcov_remote_map, &remote->hnode, handle);
+ return remote;
+}
+
+/* Must be called with kcov_remote_lock locked. */
+static struct kcov_remote_area *kcov_remote_area_get(unsigned int size)
+{
+ struct kcov_remote_area *area;
+ struct list_head *pos;
+
+ kcov_debug("size = %u\n", size);
+ list_for_each(pos, &kcov_remote_areas) {
+ area = list_entry(pos, struct kcov_remote_area, list);
+ if (area->size == size) {
+ list_del(&area->list);
+ kcov_debug("rv = %px\n", area);
+ return area;
+ }
+ }
+ kcov_debug("rv = NULL\n");
+ return NULL;
+}
+
+/* Must be called with kcov_remote_lock locked. */
+static void kcov_remote_area_put(struct kcov_remote_area *area,
+ unsigned int size)
+{
+ kcov_debug("area = %px, size = %u\n", area, size);
+ INIT_LIST_HEAD(&area->list);
+ area->size = size;
+ list_add(&area->list, &kcov_remote_areas);
+}
+
static notrace bool check_kcov_mode(enum kcov_mode needed_mode, struct task_struct *t)
{
unsigned int mode;
@@ -72,7 +158,7 @@ static notrace bool check_kcov_mode(enum kcov_mode needed_mode, struct task_stru
* in_interrupt() returns false (e.g. preempt_schedule_irq()).
* READ_ONCE()/barrier() effectively provides load-acquire wrt
* interrupts, there are paired barrier()/WRITE_ONCE() in
- * kcov_ioctl_locked().
+ * kcov_start().
*/
barrier();
return mode == needed_mode;
@@ -226,26 +312,90 @@ void notrace __sanitizer_cov_trace_switch(u64 val, u64 *cases)
EXPORT_SYMBOL(__sanitizer_cov_trace_switch);
#endif /* ifdef CONFIG_KCOV_ENABLE_COMPARISONS */
-static void kcov_get(struct kcov *kcov)
+static void kcov_start(struct task_struct *t, unsigned int size,
+ void *area, enum kcov_mode mode, int sequence)
{
- atomic_inc(&kcov->refcount);
+ kcov_debug("t = %px, size = %u, area = %px\n", t, size, area);
+ /* Cache in task struct for performance. */
+ t->kcov_size = size;
+ t->kcov_area = area;
+ /* See comment in check_kcov_mode(). */
+ barrier();
+ WRITE_ONCE(t->kcov_mode, mode);
+ t->kcov_sequence = sequence;
}
-static void kcov_put(struct kcov *kcov)
-{
- if (atomic_dec_and_test(&kcov->refcount)) {
- vfree(kcov->area);
- kfree(kcov);
- }
-}
-
-void kcov_task_init(struct task_struct *t)
+static void kcov_stop(struct task_struct *t)
{
WRITE_ONCE(t->kcov_mode, KCOV_MODE_DISABLED);
barrier();
t->kcov_size = 0;
t->kcov_area = NULL;
+}
+
+static void kcov_task_reset(struct task_struct *t)
+{
+ kcov_stop(t);
t->kcov = NULL;
+ t->kcov_sequence = 0;
+ t->kcov_handle = 0;
+}
+
+void kcov_task_init(struct task_struct *t)
+{
+ kcov_task_reset(t);
+ t->kcov_handle = current->kcov_handle;
+}
+
+static void kcov_reset(struct kcov *kcov)
+{
+ kcov->t = NULL;
+ kcov->mode = KCOV_MODE_INIT;
+ kcov->remote = false;
+ kcov->remote_size = 0;
+ kcov->sequence++;
+}
+
+static void kcov_remote_reset(struct kcov *kcov)
+{
+ int bkt;
+ struct kcov_remote *remote;
+ struct hlist_node *tmp;
+
+ spin_lock(&kcov_remote_lock);
+ hash_for_each_safe(kcov_remote_map, bkt, tmp, remote, hnode) {
+ if (remote->kcov != kcov)
+ continue;
+ kcov_debug("removing handle %llx\n", remote->handle);
+ hash_del(&remote->hnode);
+ kfree(remote);
+ }
+ /* Do reset before unlock to prevent races with kcov_remote_start(). */
+ kcov_reset(kcov);
+ spin_unlock(&kcov_remote_lock);
+}
+
+static void kcov_disable(struct task_struct *t, struct kcov *kcov)
+{
+ kcov_task_reset(t);
+ if (kcov->remote)
+ kcov_remote_reset(kcov);
+ else
+ kcov_reset(kcov);
+}
+
+static void kcov_get(struct kcov *kcov)
+{
+ refcount_inc(&kcov->refcount);
+}
+
+static void kcov_put(struct kcov *kcov)
+{
+ if (refcount_dec_and_test(&kcov->refcount)) {
+ kcov_remote_reset(kcov);
+ vfree(kcov->area);
+ kfree(kcov);
+ }
}
void kcov_task_exit(struct task_struct *t)
@@ -255,15 +405,36 @@ void kcov_task_exit(struct task_struct *t)
kcov = t->kcov;
if (kcov == NULL)
return;
+
spin_lock(&kcov->lock);
+ kcov_debug("t = %px, kcov->t = %px\n", t, kcov->t);
+ /*
+ * For KCOV_ENABLE devices we want to make sure that t->kcov->t == t,
+ * which comes down to:
+ * WARN_ON(!kcov->remote && kcov->t != t);
+ *
+ * For KCOV_REMOTE_ENABLE devices, the exiting task is either:
+ * 2. A remote task between kcov_remote_start() and kcov_remote_stop().
+ * In this case we should print a warning right away, since a task
+ * shouldn't be exiting when it's in a kcov coverage collection
+ * section. Here t points to the task that is collecting remote
+ * coverage, and t->kcov->t points to the thread that created the
+ * kcov device. Which means that to detect this case we need to
+ * check that t != t->kcov->t, and this gives us the following:
+ * WARN_ON(kcov->remote && kcov->t != t);
+ *
+ * 2. The task that created kcov exiting without calling KCOV_DISABLE,
+ * and then again we can make sure that t->kcov->t == t:
+ * WARN_ON(kcov->remote && kcov->t != t);
+ *
+ * By combining all three checks into one we get:
+ */
if (WARN_ON(kcov->t != t)) {
spin_unlock(&kcov->lock);
return;
}
/* Just to not leave dangling references behind. */
- kcov_task_init(t);
- kcov->t = NULL;
- kcov->mode = KCOV_MODE_INIT;
+ kcov_disable(t, kcov);
spin_unlock(&kcov->lock);
kcov_put(kcov);
}
@@ -312,7 +483,8 @@ static int kcov_open(struct inode *inode, struct file *filep)
if (!kcov)
return -ENOMEM;
kcov->mode = KCOV_MODE_DISABLED;
- atomic_set(&kcov->refcount, 1);
+ kcov->sequence = 1;
+ refcount_set(&kcov->refcount, 1);
spin_lock_init(&kcov->lock);
filep->private_data = kcov;
return nonseekable_open(inode, filep);
@@ -324,6 +496,20 @@ static int kcov_close(struct inode *inode, struct file *filep)
return 0;
}
+static int kcov_get_mode(unsigned long arg)
+{
+ if (arg == KCOV_TRACE_PC)
+ return KCOV_MODE_TRACE_PC;
+ else if (arg == KCOV_TRACE_CMP)
+#ifdef CONFIG_KCOV_ENABLE_COMPARISONS
+ return KCOV_MODE_TRACE_CMP;
+#else
+ return -ENOTSUPP;
+#endif
+ else
+ return -EINVAL;
+}
+
/*
* Fault in a lazily-faulted vmalloc area before it can be used by
* __santizer_cov_trace_pc(), to avoid recursion issues if any code on the
@@ -339,14 +525,35 @@ static void kcov_fault_in_area(struct kcov *kcov)
READ_ONCE(area[offset]);
}
+static inline bool kcov_check_handle(u64 handle, bool common_valid,
+ bool uncommon_valid, bool zero_valid)
+{
+ if (handle & ~(KCOV_SUBSYSTEM_MASK | KCOV_INSTANCE_MASK))
+ return false;
+ switch (handle & KCOV_SUBSYSTEM_MASK) {
+ case KCOV_SUBSYSTEM_COMMON:
+ return (handle & KCOV_INSTANCE_MASK) ?
+ common_valid : zero_valid;
+ case KCOV_SUBSYSTEM_USB:
+ return uncommon_valid;
+ default:
+ return false;
+ }
+ return false;
+}
+
static int kcov_ioctl_locked(struct kcov *kcov, unsigned int cmd,
unsigned long arg)
{
struct task_struct *t;
unsigned long size, unused;
+ int mode, i;
+ struct kcov_remote_arg *remote_arg;
+ struct kcov_remote *remote;
switch (cmd) {
case KCOV_INIT_TRACE:
+ kcov_debug("KCOV_INIT_TRACE\n");
/*
* Enable kcov in trace mode and setup buffer size.
* Must happen before anything else.
@@ -365,6 +572,7 @@ static int kcov_ioctl_locked(struct kcov *kcov, unsigned int cmd,
kcov->mode = KCOV_MODE_INIT;
return 0;
case KCOV_ENABLE:
+ kcov_debug("KCOV_ENABLE\n");
/*
* Enable coverage for the current task.
* At this point user must have been enabled trace mode,
@@ -377,29 +585,20 @@ static int kcov_ioctl_locked(struct kcov *kcov, unsigned int cmd,
t = current;
if (kcov->t != NULL || t->kcov != NULL)
return -EBUSY;
- if (arg == KCOV_TRACE_PC)
- kcov->mode = KCOV_MODE_TRACE_PC;
- else if (arg == KCOV_TRACE_CMP)
-#ifdef CONFIG_KCOV_ENABLE_COMPARISONS
- kcov->mode = KCOV_MODE_TRACE_CMP;
-#else
- return -ENOTSUPP;
-#endif
- else
- return -EINVAL;
+ mode = kcov_get_mode(arg);
+ if (mode < 0)
+ return mode;
kcov_fault_in_area(kcov);
- /* Cache in task struct for performance. */
- t->kcov_size = kcov->size;
- t->kcov_area = kcov->area;
- /* See comment in check_kcov_mode(). */
- barrier();
- WRITE_ONCE(t->kcov_mode, kcov->mode);
+ kcov->mode = mode;
+ kcov_start(t, kcov->size, kcov->area, kcov->mode,
+ kcov->sequence);
t->kcov = kcov;
kcov->t = t;
- /* This is put either in kcov_task_exit() or in KCOV_DISABLE. */
+ /* Put either in kcov_task_exit() or in KCOV_DISABLE. */
kcov_get(kcov);
return 0;
case KCOV_DISABLE:
+ kcov_debug("KCOV_DISABLE\n");
/* Disable coverage for the current task. */
unused = arg;
if (unused != 0 || current->kcov != kcov)
@@ -407,11 +606,65 @@ static int kcov_ioctl_locked(struct kcov *kcov, unsigned int cmd,
t = current;
if (WARN_ON(kcov->t != t))
return -EINVAL;
- kcov_task_init(t);
- kcov->t = NULL;
- kcov->mode = KCOV_MODE_INIT;
+ kcov_disable(t, kcov);
kcov_put(kcov);
return 0;
+ case KCOV_REMOTE_ENABLE:
+ kcov_debug("KCOV_REMOTE_ENABLE\n");
+ if (kcov->mode != KCOV_MODE_INIT || !kcov->area)
+ return -EINVAL;
+ t = current;
+ if (kcov->t != NULL || t->kcov != NULL)
+ return -EBUSY;
+ remote_arg = (struct kcov_remote_arg *)arg;
+ mode = kcov_get_mode(remote_arg->trace_mode);
+ if (mode < 0)
+ return mode;
+ if (remote_arg->area_size > LONG_MAX / sizeof(unsigned long))
+ return -EINVAL;
+ kcov->mode = mode;
+ t->kcov = kcov;
+ kcov->t = t;
+ kcov->remote = true;
+ kcov->remote_size = remote_arg->area_size;
+ spin_lock(&kcov_remote_lock);
+ for (i = 0; i < remote_arg->num_handles; i++) {
+ kcov_debug("handle %llx\n", remote_arg->handles[i]);
+ if (!kcov_check_handle(remote_arg->handles[i],
+ false, true, false)) {
+ spin_unlock(&kcov_remote_lock);
+ kcov_disable(t, kcov);
+ return -EINVAL;
+ }
+ remote = kcov_remote_add(kcov, remote_arg->handles[i]);
+ if (IS_ERR(remote)) {
+ spin_unlock(&kcov_remote_lock);
+ kcov_disable(t, kcov);
+ return PTR_ERR(remote);
+ }
+ }
+ if (remote_arg->common_handle) {
+ kcov_debug("common handle %llx\n",
+ remote_arg->common_handle);
+ if (!kcov_check_handle(remote_arg->common_handle,
+ true, false, false)) {
+ spin_unlock(&kcov_remote_lock);
+ kcov_disable(t, kcov);
+ return -EINVAL;
+ }
+ remote = kcov_remote_add(kcov,
+ remote_arg->common_handle);
+ if (IS_ERR(remote)) {
+ spin_unlock(&kcov_remote_lock);
+ kcov_disable(t, kcov);
+ return PTR_ERR(remote);
+ }
+ t->kcov_handle = remote_arg->common_handle;
+ }
+ spin_unlock(&kcov_remote_lock);
+ /* Put either in kcov_task_exit() or in KCOV_DISABLE. */
+ kcov_get(kcov);
+ return 0;
default:
return -ENOTTY;
}
@@ -421,11 +674,35 @@ static long kcov_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
{
struct kcov *kcov;
int res;
+ struct kcov_remote_arg *remote_arg = NULL;
+ unsigned int remote_num_handles;
+ unsigned long remote_arg_size;
+
+ if (cmd == KCOV_REMOTE_ENABLE) {
+ if (get_user(remote_num_handles, (unsigned __user *)(arg +
+ offsetof(struct kcov_remote_arg, num_handles))))
+ return -EFAULT;
+ if (remote_num_handles > KCOV_REMOTE_MAX_HANDLES)
+ return -EINVAL;
+ remote_arg_size = struct_size(remote_arg, handles,
+ remote_num_handles);
+ remote_arg = memdup_user((void __user *)arg, remote_arg_size);
+ if (IS_ERR(remote_arg))
+ return PTR_ERR(remote_arg);
+ if (remote_arg->num_handles != remote_num_handles) {
+ kfree(remote_arg);
+ return -EINVAL;
+ }
+ arg = (unsigned long)remote_arg;
+ }
kcov = filep->private_data;
spin_lock(&kcov->lock);
res = kcov_ioctl_locked(kcov, cmd, arg);
spin_unlock(&kcov->lock);
+
+ kfree(remote_arg);
+
return res;
}
@@ -437,6 +714,207 @@ static const struct file_operations kcov_fops = {
.release = kcov_close,
};
+/*
+ * kcov_remote_start() and kcov_remote_stop() can be used to annotate a section
+ * of code in a kernel background thread to allow kcov to be used to collect
+ * coverage from that part of code.
+ *
+ * The handle argument of kcov_remote_start() identifies a code section that is
+ * used for coverage collection. A userspace process passes this handle to
+ * KCOV_REMOTE_ENABLE ioctl to make the used kcov device start collecting
+ * coverage for the code section identified by this handle.
+ *
+ * The usage of these annotations in the kernel code is different depending on
+ * the type of the kernel thread whose code is being annotated.
+ *
+ * For global kernel threads that are spawned in a limited number of instances
+ * (e.g. one USB hub_event() worker thread is spawned per USB HCD), each
+ * instance must be assigned a unique 4-byte instance id. The instance id is
+ * then combined with a 1-byte subsystem id to get a handle via
+ * kcov_remote_handle(subsystem_id, instance_id).
+ *
+ * For local kernel threads that are spawned from system calls handler when a
+ * user interacts with some kernel interface (e.g. vhost workers), a handle is
+ * passed from a userspace process as the common_handle field of the
+ * kcov_remote_arg struct (note, that the user must generate a handle by using
+ * kcov_remote_handle() with KCOV_SUBSYSTEM_COMMON as the subsystem id and an
+ * arbitrary 4-byte non-zero number as the instance id). This common handle
+ * then gets saved into the task_struct of the process that issued the
+ * KCOV_REMOTE_ENABLE ioctl. When this proccess issues system calls that spawn
+ * kernel threads, the common handle must be retrived via kcov_common_handle()
+ * and passed to the spawned threads via custom annotations. Those kernel
+ * threads must in turn be annotated with kcov_remote_start(common_handle) and
+ * kcov_remote_stop(). All of the threads that are spawned by the same process
+ * obtain the same handle, hence the name "common".
+ *
+ * See Documentation/dev-tools/kcov.rst for more details.
+ *
+ * Internally, this function looks up the kcov device associated with the
+ * provided handle, allocates an area for coverage collection, and saves the
+ * pointers to kcov and area into the current task_struct to allow coverage to
+ * be collected via __sanitizer_cov_trace_pc()
+ * In turns kcov_remote_stop() clears those pointers from task_struct to stop
+ * collecting coverage and copies all collected coverage into the kcov area.
+ */
+void kcov_remote_start(u64 handle)
+{
+ struct kcov_remote *remote;
+ void *area;
+ struct task_struct *t;
+ unsigned int size;
+ enum kcov_mode mode;
+ int sequence;
+
+ if (WARN_ON(!kcov_check_handle(handle, true, true, true)))
+ return;
+ if (WARN_ON(!in_task()))
+ return;
+ t = current;
+ /*
+ * Check that kcov_remote_start is not called twice
+ * nor called by user tasks (with enabled kcov).
+ */
+ if (WARN_ON(t->kcov))
+ return;
+
+ kcov_debug("handle = %llx\n", handle);
+
+ spin_lock(&kcov_remote_lock);
+ remote = kcov_remote_find(handle);
+ if (!remote) {
+ kcov_debug("no remote found");
+ spin_unlock(&kcov_remote_lock);
+ return;
+ }
+ /* Put in kcov_remote_stop(). */
+ kcov_get(remote->kcov);
+ t->kcov = remote->kcov;
+ /*
+ * Read kcov fields before unlock to prevent races with
+ * KCOV_DISABLE / kcov_remote_reset().
+ */
+ size = remote->kcov->remote_size;
+ mode = remote->kcov->mode;
+ sequence = remote->kcov->sequence;
+ area = kcov_remote_area_get(size);
+ spin_unlock(&kcov_remote_lock);
+
+ if (!area) {
+ area = vmalloc(size * sizeof(unsigned long));
+ if (!area) {
+ t->kcov = NULL;
+ kcov_put(remote->kcov);
+ return;
+ }
+ }
+ /* Reset coverage size. */
+ *(u64 *)area = 0;
+
+ kcov_debug("area = %px, size = %u", area, size);
+
+ kcov_start(t, size, area, mode, sequence);
+
+}
+EXPORT_SYMBOL(kcov_remote_start);
+
+static void kcov_move_area(enum kcov_mode mode, void *dst_area,
+ unsigned int dst_area_size, void *src_area)
+{
+ u64 word_size = sizeof(unsigned long);
+ u64 count_size, entry_size_log;
+ u64 dst_len, src_len;
+ void *dst_entries, *src_entries;
+ u64 dst_occupied, dst_free, bytes_to_move, entries_moved;
+
+ kcov_debug("%px %u <= %px %lu\n",
+ dst_area, dst_area_size, src_area, *(unsigned long *)src_area);
+
+ switch (mode) {
+ case KCOV_MODE_TRACE_PC:
+ dst_len = READ_ONCE(*(unsigned long *)dst_area);
+ src_len = *(unsigned long *)src_area;
+ count_size = sizeof(unsigned long);
+ entry_size_log = __ilog2_u64(sizeof(unsigned long));
+ break;
+ case KCOV_MODE_TRACE_CMP:
+ dst_len = READ_ONCE(*(u64 *)dst_area);
+ src_len = *(u64 *)src_area;
+ count_size = sizeof(u64);
+ BUILD_BUG_ON(!is_power_of_2(KCOV_WORDS_PER_CMP));
+ entry_size_log = __ilog2_u64(sizeof(u64) * KCOV_WORDS_PER_CMP);
+ break;
+ default:
+ WARN_ON(1);
+ return;
+ }
+
+ /* As arm can't divide u64 integers use log of entry size. */
+ if (dst_len > ((dst_area_size * word_size - count_size) >>
+ entry_size_log))
+ return;
+ dst_occupied = count_size + (dst_len << entry_size_log);
+ dst_free = dst_area_size * word_size - dst_occupied;
+ bytes_to_move = min(dst_free, src_len << entry_size_log);
+ dst_entries = dst_area + dst_occupied;
+ src_entries = src_area + count_size;
+ memcpy(dst_entries, src_entries, bytes_to_move);
+ entries_moved = bytes_to_move >> entry_size_log;
+
+ switch (mode) {
+ case KCOV_MODE_TRACE_PC:
+ WRITE_ONCE(*(unsigned long *)dst_area, dst_len + entries_moved);
+ break;
+ case KCOV_MODE_TRACE_CMP:
+ WRITE_ONCE(*(u64 *)dst_area, dst_len + entries_moved);
+ break;
+ default:
+ break;
+ }
+}
+
+/* See the comment before kcov_remote_start() for usage details. */
+void kcov_remote_stop(void)
+{
+ struct task_struct *t = current;
+ struct kcov *kcov = t->kcov;
+ void *area = t->kcov_area;
+ unsigned int size = t->kcov_size;
+ int sequence = t->kcov_sequence;
+
+ if (!kcov) {
+ kcov_debug("no kcov found\n");
+ return;
+ }
+
+ kcov_stop(t);
+ t->kcov = NULL;
+
+ spin_lock(&kcov->lock);
+ /*
+ * KCOV_DISABLE could have been called between kcov_remote_start()
+ * and kcov_remote_stop(), hence the check.
+ */
+ kcov_debug("move if: %d == %d && %d\n",
+ sequence, kcov->sequence, (int)kcov->remote);
+ if (sequence == kcov->sequence && kcov->remote)
+ kcov_move_area(kcov->mode, kcov->area, kcov->size, area);
+ spin_unlock(&kcov->lock);
+
+ spin_lock(&kcov_remote_lock);
+ kcov_remote_area_put(area, size);
+ spin_unlock(&kcov_remote_lock);
+
+ kcov_put(kcov);
+}
+EXPORT_SYMBOL(kcov_remote_stop);
+
+/* See the comment before kcov_remote_start() for usage details. */
+u64 kcov_common_handle(void)
+{
+ return current->kcov_handle;
+}
+EXPORT_SYMBOL(kcov_common_handle);
+
static int __init kcov_init(void)
{
/*
@@ -444,10 +922,8 @@ static int __init kcov_init(void)
* there is no need to protect it against removal races. The
* use of debugfs_create_file_unsafe() is actually safe here.
*/
- if (!debugfs_create_file_unsafe("kcov", 0600, NULL, NULL, &kcov_fops)) {
- pr_err("failed to create kcov in debugfs\n");
- return -ENOMEM;
- }
+ debugfs_create_file_unsafe("kcov", 0600, NULL, NULL, &kcov_fops);
+
return 0;
}
diff --git a/kernel/kheaders.c b/kernel/kheaders.c
new file mode 100644
index 0000000..8f69772
--- /dev/null
+++ b/kernel/kheaders.c
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Provide kernel headers useful to build tracing programs
+ * such as for running eBPF tracing tools.
+ *
+ * (Borrowed code from kernel/configs.c)
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/kobject.h>
+#include <linux/init.h>
+
+/*
+ * Define kernel_headers_data and kernel_headers_data_end, within which the
+ * compressed kernel headers are stored. The file is first compressed with xz.
+ */
+
+asm (
+" .pushsection .rodata, \"a\" \n"
+" .global kernel_headers_data \n"
+"kernel_headers_data: \n"
+" .incbin \"kernel/kheaders_data.tar.xz\" \n"
+" .global kernel_headers_data_end \n"
+"kernel_headers_data_end: \n"
+" .popsection \n"
+);
+
+extern char kernel_headers_data;
+extern char kernel_headers_data_end;
+
+static ssize_t
+ikheaders_read(struct file *file, struct kobject *kobj,
+ struct bin_attribute *bin_attr,
+ char *buf, loff_t off, size_t len)
+{
+ memcpy(buf, &kernel_headers_data + off, len);
+ return len;
+}
+
+static struct bin_attribute kheaders_attr __ro_after_init = {
+ .attr = {
+ .name = "kheaders.tar.xz",
+ .mode = 0444,
+ },
+ .read = &ikheaders_read,
+};
+
+static int __init ikheaders_init(void)
+{
+ kheaders_attr.size = (&kernel_headers_data_end -
+ &kernel_headers_data);
+ return sysfs_create_bin_file(kernel_kobj, &kheaders_attr);
+}
+
+static void __exit ikheaders_cleanup(void)
+{
+ sysfs_remove_bin_file(kernel_kobj, &kheaders_attr);
+}
+
+module_init(ikheaders_init);
+module_exit(ikheaders_cleanup);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Joel Fernandes");
+MODULE_DESCRIPTION("Echo the kernel header artifacts used to build the kernel");
diff --git a/kernel/kthread.c b/kernel/kthread.c
index 9750f4f..e7a8797 100644
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -11,6 +11,7 @@
#include <linux/kthread.h>
#include <linux/completion.h>
#include <linux/err.h>
+#include <linux/cgroup.h>
#include <linux/cpuset.h>
#include <linux/unistd.h>
#include <linux/file.h>
diff --git a/kernel/module.c b/kernel/module.c
index 68637e6..ff5d36e 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1388,25 +1388,6 @@ static inline int same_magic(const char *amagic, const char *bmagic,
}
#endif /* CONFIG_MODVERSIONS */
-static bool inherit_taint(struct module *mod, struct module *owner)
-{
- if (!owner || !test_bit(TAINT_PROPRIETARY_MODULE, &owner->taints))
- return true;
-
- if (mod->using_gplonly_symbols) {
- pr_err("%s: module using GPL-only symbols uses symbols from proprietary module %s.\n",
- mod->name, owner->name);
- return false;
- }
-
- if (!test_bit(TAINT_PROPRIETARY_MODULE, &mod->taints)) {
- pr_warn("%s: module uses symbols from proprietary module %s, inheriting taint.\n",
- mod->name, owner->name);
- set_bit(TAINT_PROPRIETARY_MODULE, &mod->taints);
- }
- return true;
-}
-
/* Resolve a symbol for this module. I.e. if we find one, record usage. */
static const struct kernel_symbol *resolve_symbol(struct module *mod,
const struct load_info *info,
@@ -1431,14 +1412,6 @@ static const struct kernel_symbol *resolve_symbol(struct module *mod,
if (!sym)
goto unlock;
- if (license == GPL_ONLY)
- mod->using_gplonly_symbols = true;
-
- if (!inherit_taint(mod, owner)) {
- sym = NULL;
- goto getname;
- }
-
if (!check_version(info, name, mod, crc)) {
sym = ERR_PTR(-EINVAL);
goto getname;
@@ -2204,6 +2177,8 @@ void __weak module_arch_freeing_init(struct module *mod)
{
}
+static void cfi_cleanup(struct module *mod);
+
/* Free a module, remove from lists, etc. */
static void free_module(struct module *mod)
{
@@ -2245,6 +2220,10 @@ static void free_module(struct module *mod)
/* This may be empty, but that's OK */
disable_ro_nx(&mod->init_layout);
+
+ /* Clean up CFI for the module. */
+ cfi_cleanup(mod);
+
module_arch_freeing_init(mod);
module_memfree(mod->init_layout.base);
kfree(mod->args);
@@ -3448,6 +3427,8 @@ int __weak module_finalize(const Elf_Ehdr *hdr,
return 0;
}
+static void cfi_init(struct module *mod);
+
static int post_relocation(struct module *mod, const struct load_info *info)
{
/* Sort exception table now relocations are done. */
@@ -3460,6 +3441,9 @@ static int post_relocation(struct module *mod, const struct load_info *info)
/* Setup kallsyms-specific fields. */
add_kallsyms(mod, info);
+ /* Setup CFI for the module. */
+ cfi_init(mod);
+
/* Arch-specific module finalizing. */
return module_finalize(info->hdr, info->sechdrs, mod);
}
@@ -4232,6 +4216,24 @@ int module_kallsyms_on_each_symbol(int (*fn)(void *, const char *,
}
#endif /* CONFIG_KALLSYMS */
+static void cfi_init(struct module *mod)
+{
+#ifdef CONFIG_CFI_CLANG
+ preempt_disable();
+ mod->cfi_check =
+ (cfi_check_fn)mod_find_symname(mod, CFI_CHECK_FN_NAME);
+ preempt_enable();
+ cfi_module_add(mod, module_addr_min, module_addr_max);
+#endif
+}
+
+static void cfi_cleanup(struct module *mod)
+{
+#ifdef CONFIG_CFI_CLANG
+ cfi_module_remove(mod, module_addr_min, module_addr_max);
+#endif
+}
+
/* Maximum number of characters written by module_flags() */
#define MODULE_FLAGS_BUF_SIZE (TAINT_FLAGS_COUNT + 4)
diff --git a/kernel/padata.c b/kernel/padata.c
index 7f2b6d3..93e4fb2 100644
--- a/kernel/padata.c
+++ b/kernel/padata.c
@@ -682,7 +682,7 @@ static int __padata_remove_cpu(struct padata_instance *pinst, int cpu)
{
struct parallel_data *pd = NULL;
- if (!cpumask_test_cpu(cpu, cpu_online_mask)) {
+ if (cpumask_test_cpu(cpu, cpu_online_mask)) {
if (!padata_validate_cpumask(pinst, pinst->cpumask.pcpu) ||
!padata_validate_cpumask(pinst, pinst->cpumask.cbcpu))
@@ -748,7 +748,7 @@ static int padata_cpu_online(unsigned int cpu, struct hlist_node *node)
struct padata_instance *pinst;
int ret;
- pinst = hlist_entry_safe(node, struct padata_instance, cpu_online_node);
+ pinst = hlist_entry_safe(node, struct padata_instance, node);
if (!pinst_has_cpu(pinst, cpu))
return 0;
@@ -758,12 +758,12 @@ static int padata_cpu_online(unsigned int cpu, struct hlist_node *node)
return ret;
}
-static int padata_cpu_dead(unsigned int cpu, struct hlist_node *node)
+static int padata_cpu_prep_down(unsigned int cpu, struct hlist_node *node)
{
struct padata_instance *pinst;
int ret;
- pinst = hlist_entry_safe(node, struct padata_instance, cpu_dead_node);
+ pinst = hlist_entry_safe(node, struct padata_instance, node);
if (!pinst_has_cpu(pinst, cpu))
return 0;
@@ -779,9 +779,7 @@ static enum cpuhp_state hp_online;
static void __padata_free(struct padata_instance *pinst)
{
#ifdef CONFIG_HOTPLUG_CPU
- cpuhp_state_remove_instance_nocalls(CPUHP_PADATA_DEAD,
- &pinst->cpu_dead_node);
- cpuhp_state_remove_instance_nocalls(hp_online, &pinst->cpu_online_node);
+ cpuhp_state_remove_instance_nocalls(hp_online, &pinst->node);
#endif
padata_stop(pinst);
@@ -965,10 +963,7 @@ static struct padata_instance *padata_alloc(struct workqueue_struct *wq,
mutex_init(&pinst->lock);
#ifdef CONFIG_HOTPLUG_CPU
- cpuhp_state_add_instance_nocalls_cpuslocked(hp_online,
- &pinst->cpu_online_node);
- cpuhp_state_add_instance_nocalls_cpuslocked(CPUHP_PADATA_DEAD,
- &pinst->cpu_dead_node);
+ cpuhp_state_add_instance_nocalls_cpuslocked(hp_online, &pinst->node);
#endif
return pinst;
@@ -1015,24 +1010,17 @@ static __init int padata_driver_init(void)
int ret;
ret = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN, "padata:online",
- padata_cpu_online, NULL);
+ padata_cpu_online,
+ padata_cpu_prep_down);
if (ret < 0)
return ret;
hp_online = ret;
-
- ret = cpuhp_setup_state_multi(CPUHP_PADATA_DEAD, "padata:dead",
- NULL, padata_cpu_dead);
- if (ret < 0) {
- cpuhp_remove_multi_state(hp_online);
- return ret;
- }
return 0;
}
module_init(padata_driver_init);
static __exit void padata_driver_exit(void)
{
- cpuhp_remove_multi_state(CPUHP_PADATA_DEAD);
cpuhp_remove_multi_state(hp_online);
}
module_exit(padata_driver_exit);
diff --git a/kernel/panic.c b/kernel/panic.c
index 8138a676..6b33469 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -47,9 +47,11 @@ int panic_timeout = CONFIG_PANIC_TIMEOUT;
EXPORT_SYMBOL_GPL(panic_timeout);
ATOMIC_NOTIFIER_HEAD(panic_notifier_list);
-
EXPORT_SYMBOL(panic_notifier_list);
+void (*vendor_panic_cb)(u64 sp);
+EXPORT_SYMBOL_GPL(vendor_panic_cb);
+
static long no_blink(int state)
{
return 0;
@@ -177,6 +179,8 @@ void panic(const char *fmt, ...)
va_start(args, fmt);
vsnprintf(buf, sizeof(buf), fmt, args);
va_end(args);
+ if (vendor_panic_cb)
+ vendor_panic_cb(0);
pr_emerg("Kernel panic - not syncing: %s\n", buf);
#ifdef CONFIG_DEBUG_BUGVERBOSE
/*
@@ -276,6 +280,8 @@ void panic(const char *fmt, ...)
* shutting down. But if there is a chance of
* rebooting the system it will be rebooted.
*/
+ if (panic_reboot_mode != REBOOT_UNDEFINED)
+ reboot_mode = panic_reboot_mode;
emergency_restart();
}
#ifdef __sparc__
diff --git a/kernel/params.c b/kernel/params.c
index ce89f75..bd8d46c2 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -924,6 +924,7 @@ static const struct kset_uevent_ops module_uevent_ops = {
};
struct kset *module_kset;
+EXPORT_SYMBOL_GPL(module_kset);
int module_sysfs_initialized;
static void module_kobj_release(struct kobject *kobj)
@@ -936,6 +937,7 @@ struct kobj_type module_ktype = {
.release = module_kobj_release,
.sysfs_ops = &module_sysfs_ops,
};
+EXPORT_SYMBOL_GPL(module_ktype);
/*
* param_sysfs_init - wrapper for built-in params support
diff --git a/kernel/pid.c b/kernel/pid.c
index b88fe5e..e602858 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -38,6 +38,8 @@
#include <linux/syscalls.h>
#include <linux/proc_ns.h>
#include <linux/proc_fs.h>
+#include <linux/anon_inodes.h>
+#include <linux/sched/signal.h>
#include <linux/sched/task.h>
#include <linux/idr.h>
@@ -214,6 +216,8 @@ struct pid *alloc_pid(struct pid_namespace *ns)
for (type = 0; type < PIDTYPE_MAX; ++type)
INIT_HLIST_HEAD(&pid->tasks[type]);
+ init_waitqueue_head(&pid->wait_pidfd);
+
upid = pid->numbers + ns->level;
spin_lock_irq(&pidmap_lock);
if (!(ns->pid_allocated & PIDNS_ADDING))
@@ -451,6 +455,73 @@ struct pid *find_ge_pid(int nr, struct pid_namespace *ns)
return idr_get_next(&ns->idr, &nr);
}
+/**
+ * pidfd_create() - Create a new pid file descriptor.
+ *
+ * @pid: struct pid that the pidfd will reference
+ *
+ * This creates a new pid file descriptor with the O_CLOEXEC flag set.
+ *
+ * Note, that this function can only be called after the fd table has
+ * been unshared to avoid leaking the pidfd to the new process.
+ *
+ * Return: On success, a cloexec pidfd is returned.
+ * On error, a negative errno number will be returned.
+ */
+static int pidfd_create(struct pid *pid)
+{
+ int fd;
+
+ fd = anon_inode_getfd("[pidfd]", &pidfd_fops, get_pid(pid),
+ O_RDWR | O_CLOEXEC);
+ if (fd < 0)
+ put_pid(pid);
+
+ return fd;
+}
+
+/**
+ * pidfd_open() - Open new pid file descriptor.
+ *
+ * @pid: pid for which to retrieve a pidfd
+ * @flags: flags to pass
+ *
+ * This creates a new pid file descriptor with the O_CLOEXEC flag set for
+ * the process identified by @pid. Currently, the process identified by
+ * @pid must be a thread-group leader. This restriction currently exists
+ * for all aspects of pidfds including pidfd creation (CLONE_PIDFD cannot
+ * be used with CLONE_THREAD) and pidfd polling (only supports thread group
+ * leaders).
+ *
+ * Return: On success, a cloexec pidfd is returned.
+ * On error, a negative errno number will be returned.
+ */
+SYSCALL_DEFINE2(pidfd_open, pid_t, pid, unsigned int, flags)
+{
+ int fd, ret;
+ struct pid *p;
+
+ if (flags)
+ return -EINVAL;
+
+ if (pid <= 0)
+ return -EINVAL;
+
+ p = find_get_pid(pid);
+ if (!p)
+ return -ESRCH;
+
+ ret = 0;
+ rcu_read_lock();
+ if (!pid_task(p, PIDTYPE_TGID))
+ ret = -EINVAL;
+ rcu_read_unlock();
+
+ fd = ret ?: pidfd_create(p);
+ put_pid(p);
+ return fd;
+}
+
void __init pid_idr_init(void)
{
/* Verify no one has done anything silly: */
diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig
index 3a6c2f8..f8fe57d 100644
--- a/kernel/power/Kconfig
+++ b/kernel/power/Kconfig
@@ -298,3 +298,18 @@
config CPU_PM
bool
+
+config ENERGY_MODEL
+ bool "Energy Model for CPUs"
+ depends on SMP
+ depends on CPU_FREQ
+ default n
+ help
+ Several subsystems (thermal and/or the task scheduler for example)
+ can leverage information about the energy consumed by CPUs to make
+ smarter decisions. This config option enables the framework from
+ which subsystems can access the energy models.
+
+ The exact usage of the energy model is subsystem-dependent.
+
+ If in doubt, say N.
diff --git a/kernel/power/Makefile b/kernel/power/Makefile
index a3f79f0e..bbf0676 100644
--- a/kernel/power/Makefile
+++ b/kernel/power/Makefile
@@ -15,3 +15,6 @@
obj-$(CONFIG_PM_WAKELOCKS) += wakelock.o
obj-$(CONFIG_MAGIC_SYSRQ) += poweroff.o
+
+obj-$(CONFIG_ENERGY_MODEL) += energy_model.o
+obj-$(CONFIG_SUSPEND) += wakeup_reason.o
diff --git a/kernel/power/autosleep.c b/kernel/power/autosleep.c
index 41e83a7..9af5a50 100644
--- a/kernel/power/autosleep.c
+++ b/kernel/power/autosleep.c
@@ -116,7 +116,7 @@ int pm_autosleep_set_state(suspend_state_t state)
int __init pm_autosleep_init(void)
{
- autosleep_ws = wakeup_source_register("autosleep");
+ autosleep_ws = wakeup_source_register(NULL, "autosleep");
if (!autosleep_ws)
return -ENOMEM;
diff --git a/kernel/power/energy_model.c b/kernel/power/energy_model.c
new file mode 100644
index 0000000..7d66ee6
--- /dev/null
+++ b/kernel/power/energy_model.c
@@ -0,0 +1,258 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Energy Model of CPUs
+ *
+ * Copyright (c) 2018, Arm ltd.
+ * Written by: Quentin Perret, Arm ltd.
+ */
+
+#define pr_fmt(fmt) "energy_model: " fmt
+
+#include <linux/cpu.h>
+#include <linux/cpumask.h>
+#include <linux/debugfs.h>
+#include <linux/energy_model.h>
+#include <linux/sched/topology.h>
+#include <linux/slab.h>
+
+/* Mapping of each CPU to the performance domain to which it belongs. */
+static DEFINE_PER_CPU(struct em_perf_domain *, em_data);
+
+/*
+ * Mutex serializing the registrations of performance domains and letting
+ * callbacks defined by drivers sleep.
+ */
+static DEFINE_MUTEX(em_pd_mutex);
+
+#ifdef CONFIG_DEBUG_FS
+static struct dentry *rootdir;
+
+static void em_debug_create_cs(struct em_cap_state *cs, struct dentry *pd)
+{
+ struct dentry *d;
+ char name[24];
+
+ snprintf(name, sizeof(name), "cs:%lu", cs->frequency);
+
+ /* Create per-cs directory */
+ d = debugfs_create_dir(name, pd);
+ debugfs_create_ulong("frequency", 0444, d, &cs->frequency);
+ debugfs_create_ulong("power", 0444, d, &cs->power);
+ debugfs_create_ulong("cost", 0444, d, &cs->cost);
+}
+
+static int em_debug_cpus_show(struct seq_file *s, void *unused)
+{
+ seq_printf(s, "%*pbl\n", cpumask_pr_args(to_cpumask(s->private)));
+
+ return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(em_debug_cpus);
+
+static void em_debug_create_pd(struct em_perf_domain *pd, int cpu)
+{
+ struct dentry *d;
+ char name[8];
+ int i;
+
+ snprintf(name, sizeof(name), "pd%d", cpu);
+
+ /* Create the directory of the performance domain */
+ d = debugfs_create_dir(name, rootdir);
+
+ debugfs_create_file("cpus", 0444, d, pd->cpus, &em_debug_cpus_fops);
+
+ /* Create a sub-directory for each capacity state */
+ for (i = 0; i < pd->nr_cap_states; i++)
+ em_debug_create_cs(&pd->table[i], d);
+}
+
+static int __init em_debug_init(void)
+{
+ /* Create /sys/kernel/debug/energy_model directory */
+ rootdir = debugfs_create_dir("energy_model", NULL);
+
+ return 0;
+}
+core_initcall(em_debug_init);
+#else /* CONFIG_DEBUG_FS */
+static void em_debug_create_pd(struct em_perf_domain *pd, int cpu) {}
+#endif
+static struct em_perf_domain *em_create_pd(cpumask_t *span, int nr_states,
+ struct em_data_callback *cb)
+{
+ unsigned long opp_eff, prev_opp_eff = ULONG_MAX;
+ unsigned long power, freq, prev_freq = 0;
+ int i, ret, cpu = cpumask_first(span);
+ struct em_cap_state *table;
+ struct em_perf_domain *pd;
+ u64 fmax;
+
+ if (!cb->active_power)
+ return NULL;
+
+ pd = kzalloc(sizeof(*pd) + cpumask_size(), GFP_KERNEL);
+ if (!pd)
+ return NULL;
+
+ table = kcalloc(nr_states, sizeof(*table), GFP_KERNEL);
+ if (!table)
+ goto free_pd;
+
+ /* Build the list of capacity states for this performance domain */
+ for (i = 0, freq = 0; i < nr_states; i++, freq++) {
+ /*
+ * active_power() is a driver callback which ceils 'freq' to
+ * lowest capacity state of 'cpu' above 'freq' and updates
+ * 'power' and 'freq' accordingly.
+ */
+ ret = cb->active_power(&power, &freq, cpu);
+ if (ret) {
+ pr_err("pd%d: invalid cap. state: %d\n", cpu, ret);
+ goto free_cs_table;
+ }
+
+ /*
+ * We expect the driver callback to increase the frequency for
+ * higher capacity states.
+ */
+ if (freq <= prev_freq) {
+ pr_err("pd%d: non-increasing freq: %lu\n", cpu, freq);
+ goto free_cs_table;
+ }
+
+ /*
+ * The power returned by active_state() is expected to be
+ * positive, in milli-watts and to fit into 16 bits.
+ */
+ if (!power || power > EM_CPU_MAX_POWER) {
+ pr_err("pd%d: invalid power: %lu\n", cpu, power);
+ goto free_cs_table;
+ }
+
+ table[i].power = power;
+ table[i].frequency = prev_freq = freq;
+
+ /*
+ * The hertz/watts efficiency ratio should decrease as the
+ * frequency grows on sane platforms. But this isn't always
+ * true in practice so warn the user if a higher OPP is more
+ * power efficient than a lower one.
+ */
+ opp_eff = freq / power;
+ if (opp_eff >= prev_opp_eff)
+ pr_warn("pd%d: hertz/watts ratio non-monotonically decreasing: em_cap_state %d >= em_cap_state%d\n",
+ cpu, i, i - 1);
+ prev_opp_eff = opp_eff;
+ }
+
+ /* Compute the cost of each capacity_state. */
+ fmax = (u64) table[nr_states - 1].frequency;
+ for (i = 0; i < nr_states; i++) {
+ table[i].cost = div64_u64(fmax * table[i].power,
+ table[i].frequency);
+ }
+
+ pd->table = table;
+ pd->nr_cap_states = nr_states;
+ cpumask_copy(to_cpumask(pd->cpus), span);
+
+ em_debug_create_pd(pd, cpu);
+
+ return pd;
+
+free_cs_table:
+ kfree(table);
+free_pd:
+ kfree(pd);
+
+ return NULL;
+}
+
+/**
+ * em_cpu_get() - Return the performance domain for a CPU
+ * @cpu : CPU to find the performance domain for
+ *
+ * Return: the performance domain to which 'cpu' belongs, or NULL if it doesn't
+ * exist.
+ */
+struct em_perf_domain *em_cpu_get(int cpu)
+{
+ return READ_ONCE(per_cpu(em_data, cpu));
+}
+EXPORT_SYMBOL_GPL(em_cpu_get);
+
+/**
+ * em_register_perf_domain() - Register the Energy Model of a performance domain
+ * @span : Mask of CPUs in the performance domain
+ * @nr_states : Number of capacity states to register
+ * @cb : Callback functions providing the data of the Energy Model
+ *
+ * Create Energy Model tables for a performance domain using the callbacks
+ * defined in cb.
+ *
+ * If multiple clients register the same performance domain, all but the first
+ * registration will be ignored.
+ *
+ * Return 0 on success
+ */
+int em_register_perf_domain(cpumask_t *span, unsigned int nr_states,
+ struct em_data_callback *cb)
+{
+ unsigned long cap, prev_cap = 0;
+ struct em_perf_domain *pd;
+ int cpu, ret = 0;
+
+ if (!span || !nr_states || !cb)
+ return -EINVAL;
+
+ /*
+ * Use a mutex to serialize the registration of performance domains and
+ * let the driver-defined callback functions sleep.
+ */
+ mutex_lock(&em_pd_mutex);
+
+ for_each_cpu(cpu, span) {
+ /* Make sure we don't register again an existing domain. */
+ if (READ_ONCE(per_cpu(em_data, cpu))) {
+ ret = -EEXIST;
+ goto unlock;
+ }
+
+ /*
+ * All CPUs of a domain must have the same micro-architecture
+ * since they all share the same table.
+ */
+ cap = arch_scale_cpu_capacity(NULL, cpu);
+ if (prev_cap && prev_cap != cap) {
+ pr_err("CPUs of %*pbl must have the same capacity\n",
+ cpumask_pr_args(span));
+ ret = -EINVAL;
+ goto unlock;
+ }
+ prev_cap = cap;
+ }
+
+ /* Create the performance domain and add it to the Energy Model. */
+ pd = em_create_pd(span, nr_states, cb);
+ if (!pd) {
+ ret = -EINVAL;
+ goto unlock;
+ }
+
+ for_each_cpu(cpu, span) {
+ /*
+ * The per-cpu array can be read concurrently from em_cpu_get().
+ * The barrier enforces the ordering needed to make sure readers
+ * can only access well formed em_perf_domain structs.
+ */
+ smp_store_release(per_cpu_ptr(&em_data, cpu), pd);
+ }
+
+ pr_debug("Created perf domain %*pbl\n", cpumask_pr_args(span));
+unlock:
+ mutex_unlock(&em_pd_mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(em_register_perf_domain);
diff --git a/kernel/power/main.c b/kernel/power/main.c
index 35b5082..1ee8133 100644
--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -242,7 +242,6 @@ static ssize_t pm_test_store(struct kobject *kobj, struct kobj_attribute *attr,
power_attr(pm_test);
#endif /* CONFIG_PM_SLEEP_DEBUG */
-#ifdef CONFIG_DEBUG_FS
static char *suspend_step_name(enum suspend_stat_step step)
{
switch (step) {
@@ -263,6 +262,92 @@ static char *suspend_step_name(enum suspend_stat_step step)
}
}
+#define suspend_attr(_name) \
+static ssize_t _name##_show(struct kobject *kobj, \
+ struct kobj_attribute *attr, char *buf) \
+{ \
+ return sprintf(buf, "%d\n", suspend_stats._name); \
+} \
+static struct kobj_attribute _name = __ATTR_RO(_name)
+
+suspend_attr(success);
+suspend_attr(fail);
+suspend_attr(failed_freeze);
+suspend_attr(failed_prepare);
+suspend_attr(failed_suspend);
+suspend_attr(failed_suspend_late);
+suspend_attr(failed_suspend_noirq);
+suspend_attr(failed_resume);
+suspend_attr(failed_resume_early);
+suspend_attr(failed_resume_noirq);
+
+static ssize_t last_failed_dev_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buf)
+{
+ int index;
+ char *last_failed_dev = NULL;
+
+ index = suspend_stats.last_failed_dev + REC_FAILED_NUM - 1;
+ index %= REC_FAILED_NUM;
+ last_failed_dev = suspend_stats.failed_devs[index];
+
+ return sprintf(buf, "%s\n", last_failed_dev);
+}
+static struct kobj_attribute last_failed_dev = __ATTR_RO(last_failed_dev);
+
+static ssize_t last_failed_errno_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buf)
+{
+ int index;
+ int last_failed_errno;
+
+ index = suspend_stats.last_failed_errno + REC_FAILED_NUM - 1;
+ index %= REC_FAILED_NUM;
+ last_failed_errno = suspend_stats.errno[index];
+
+ return sprintf(buf, "%d\n", last_failed_errno);
+}
+static struct kobj_attribute last_failed_errno = __ATTR_RO(last_failed_errno);
+
+static ssize_t last_failed_step_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buf)
+{
+ int index;
+ enum suspend_stat_step step;
+ char *last_failed_step = NULL;
+
+ index = suspend_stats.last_failed_step + REC_FAILED_NUM - 1;
+ index %= REC_FAILED_NUM;
+ step = suspend_stats.failed_steps[index];
+ last_failed_step = suspend_step_name(step);
+
+ return sprintf(buf, "%s\n", last_failed_step);
+}
+static struct kobj_attribute last_failed_step = __ATTR_RO(last_failed_step);
+
+static struct attribute *suspend_attrs[] = {
+ &success.attr,
+ &fail.attr,
+ &failed_freeze.attr,
+ &failed_prepare.attr,
+ &failed_suspend.attr,
+ &failed_suspend_late.attr,
+ &failed_suspend_noirq.attr,
+ &failed_resume.attr,
+ &failed_resume_early.attr,
+ &failed_resume_noirq.attr,
+ &last_failed_dev.attr,
+ &last_failed_errno.attr,
+ &last_failed_step.attr,
+ NULL,
+};
+
+static struct attribute_group suspend_attr_group = {
+ .name = "suspend_stats",
+ .attrs = suspend_attrs,
+};
+
+#ifdef CONFIG_DEBUG_FS
static int suspend_stats_show(struct seq_file *s, void *unused)
{
int i, index, last_dev, last_errno, last_step;
@@ -450,6 +535,7 @@ static inline void pm_print_times_init(void) {}
#endif /* CONFIG_PM_SLEEP_DEBUG */
struct kobject *power_kobj;
+EXPORT_SYMBOL_GPL(power_kobj);
/**
* state - control system sleep states.
@@ -793,6 +879,14 @@ static const struct attribute_group attr_group = {
.attrs = g,
};
+static const struct attribute_group *attr_groups[] = {
+ &attr_group,
+#ifdef CONFIG_PM_SLEEP
+ &suspend_attr_group,
+#endif
+ NULL,
+};
+
struct workqueue_struct *pm_wq;
EXPORT_SYMBOL_GPL(pm_wq);
@@ -814,7 +908,7 @@ static int __init pm_init(void)
power_kobj = kobject_create_and_add("power", NULL);
if (!power_kobj)
return -ENOMEM;
- error = sysfs_create_group(power_kobj, &attr_group);
+ error = sysfs_create_groups(power_kobj, attr_groups);
if (error)
return error;
pm_print_times_init();
diff --git a/kernel/power/process.c b/kernel/power/process.c
index 7381d49..d76e616 100644
--- a/kernel/power/process.c
+++ b/kernel/power/process.c
@@ -85,26 +85,27 @@ static int try_to_freeze_tasks(bool user_only)
elapsed = ktime_sub(end, start);
elapsed_msecs = ktime_to_ms(elapsed);
- if (todo) {
+ if (wakeup) {
pr_cont("\n");
- pr_err("Freezing of tasks %s after %d.%03d seconds "
- "(%d tasks refusing to freeze, wq_busy=%d):\n",
- wakeup ? "aborted" : "failed",
+ pr_err("Freezing of tasks aborted after %d.%03d seconds",
+ elapsed_msecs / 1000, elapsed_msecs % 1000);
+ } else if (todo) {
+ pr_cont("\n");
+ pr_err("Freezing of tasks failed after %d.%03d seconds"
+ " (%d tasks refusing to freeze, wq_busy=%d):\n",
elapsed_msecs / 1000, elapsed_msecs % 1000,
todo - wq_busy, wq_busy);
if (wq_busy)
show_workqueue_state();
- if (!wakeup) {
- read_lock(&tasklist_lock);
- for_each_process_thread(g, p) {
- if (p != current && !freezer_should_skip(p)
- && freezing(p) && !frozen(p))
- sched_show_task(p);
- }
- read_unlock(&tasklist_lock);
+ read_lock(&tasklist_lock);
+ for_each_process_thread(g, p) {
+ if (p != current && !freezer_should_skip(p)
+ && freezing(p) && !frozen(p))
+ sched_show_task(p);
}
+ read_unlock(&tasklist_lock);
} else {
pr_cont("(elapsed %d.%03d seconds) ", elapsed_msecs / 1000,
elapsed_msecs % 1000);
diff --git a/kernel/power/qos.c b/kernel/power/qos.c
index 86d72ffb..6ccadce 100644
--- a/kernel/power/qos.c
+++ b/kernel/power/qos.c
@@ -43,6 +43,8 @@
#include <linux/kernel.h>
#include <linux/debugfs.h>
#include <linux/seq_file.h>
+#include <linux/irq.h>
+#include <linux/irqdesc.h>
#include <linux/uaccess.h>
#include <linux/export.h>
@@ -67,6 +69,8 @@ static BLOCKING_NOTIFIER_HEAD(cpu_dma_lat_notifier);
static struct pm_qos_constraints cpu_dma_constraints = {
.list = PLIST_HEAD_INIT(cpu_dma_constraints.list),
.target_value = PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE,
+ .target_per_cpu = { [0 ... (NR_CPUS - 1)] =
+ PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE },
.default_value = PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE,
.no_constraint_value = PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE,
.type = PM_QOS_MIN,
@@ -81,6 +85,8 @@ static BLOCKING_NOTIFIER_HEAD(network_lat_notifier);
static struct pm_qos_constraints network_lat_constraints = {
.list = PLIST_HEAD_INIT(network_lat_constraints.list),
.target_value = PM_QOS_NETWORK_LAT_DEFAULT_VALUE,
+ .target_per_cpu = { [0 ... (NR_CPUS - 1)] =
+ PM_QOS_NETWORK_LAT_DEFAULT_VALUE },
.default_value = PM_QOS_NETWORK_LAT_DEFAULT_VALUE,
.no_constraint_value = PM_QOS_NETWORK_LAT_DEFAULT_VALUE,
.type = PM_QOS_MIN,
@@ -91,11 +97,12 @@ static struct pm_qos_object network_lat_pm_qos = {
.name = "network_latency",
};
-
static BLOCKING_NOTIFIER_HEAD(network_throughput_notifier);
static struct pm_qos_constraints network_tput_constraints = {
.list = PLIST_HEAD_INIT(network_tput_constraints.list),
.target_value = PM_QOS_NETWORK_THROUGHPUT_DEFAULT_VALUE,
+ .target_per_cpu = { [0 ... (NR_CPUS - 1)] =
+ PM_QOS_NETWORK_THROUGHPUT_DEFAULT_VALUE },
.default_value = PM_QOS_NETWORK_THROUGHPUT_DEFAULT_VALUE,
.no_constraint_value = PM_QOS_NETWORK_THROUGHPUT_DEFAULT_VALUE,
.type = PM_QOS_MAX,
@@ -258,6 +265,47 @@ static const struct file_operations pm_qos_debug_fops = {
.release = single_release,
};
+static inline void pm_qos_set_value_for_cpus(struct pm_qos_constraints *c,
+ bool dev_req)
+{
+ struct pm_qos_request *req = NULL;
+ int cpu;
+ s32 qos_val[NR_CPUS] = { [0 ... (NR_CPUS - 1)] = c->default_value };
+
+ /*
+ * pm_qos_set_value_for_cpus expects all c->list elements to be of type
+ * pm_qos_request, however requests from device will contain elements
+ * of type dev_pm_qos_request.
+ * pm_qos_constraints.target_per_cpu can be accessed only for
+ * constraints associated with one of the pm_qos_class and present in
+ * pm_qos_array. Device requests are not associated with any of
+ * pm_qos_class, therefore their target_per_cpu cannot be accessed. We
+ * can safely skip updating target_per_cpu for device requests.
+ */
+ if (dev_req)
+ return;
+
+ plist_for_each_entry(req, &c->list, node) {
+ for_each_cpu(cpu, &req->cpus_affine) {
+ switch (c->type) {
+ case PM_QOS_MIN:
+ if (qos_val[cpu] > req->node.prio)
+ qos_val[cpu] = req->node.prio;
+ break;
+ case PM_QOS_MAX:
+ if (req->node.prio > qos_val[cpu])
+ qos_val[cpu] = req->node.prio;
+ break;
+ default:
+ break;
+ }
+ }
+ }
+
+ for_each_possible_cpu(cpu)
+ c->target_per_cpu[cpu] = qos_val[cpu];
+}
+
/**
* pm_qos_update_target - manages the constraints list and calls the notifiers
* if needed
@@ -270,7 +318,7 @@ static const struct file_operations pm_qos_debug_fops = {
* otherwise.
*/
int pm_qos_update_target(struct pm_qos_constraints *c, struct plist_node *node,
- enum pm_qos_req_action action, int value)
+ enum pm_qos_req_action action, int value, bool dev_req)
{
unsigned long flags;
int prev_value, curr_value, new_value;
@@ -306,6 +354,7 @@ int pm_qos_update_target(struct pm_qos_constraints *c, struct plist_node *node,
curr_value = pm_qos_get_value(c);
pm_qos_set_value(c, curr_value);
+ pm_qos_set_value_for_cpus(c, dev_req);
spin_unlock_irqrestore(&pm_qos_lock, flags);
@@ -399,12 +448,49 @@ int pm_qos_request(int pm_qos_class)
}
EXPORT_SYMBOL_GPL(pm_qos_request);
+int pm_qos_request_for_cpu(int pm_qos_class, int cpu)
+{
+ return pm_qos_array[pm_qos_class]->constraints->target_per_cpu[cpu];
+}
+EXPORT_SYMBOL(pm_qos_request_for_cpu);
+
int pm_qos_request_active(struct pm_qos_request *req)
{
return req->pm_qos_class != 0;
}
EXPORT_SYMBOL_GPL(pm_qos_request_active);
+int pm_qos_request_for_cpumask(int pm_qos_class, struct cpumask *mask)
+{
+ unsigned long irqflags;
+ int cpu;
+ struct pm_qos_constraints *c = NULL;
+ int val;
+
+ spin_lock_irqsave(&pm_qos_lock, irqflags);
+ c = pm_qos_array[pm_qos_class]->constraints;
+ val = c->default_value;
+
+ for_each_cpu(cpu, mask) {
+ switch (c->type) {
+ case PM_QOS_MIN:
+ if (c->target_per_cpu[cpu] < val)
+ val = c->target_per_cpu[cpu];
+ break;
+ case PM_QOS_MAX:
+ if (c->target_per_cpu[cpu] > val)
+ val = c->target_per_cpu[cpu];
+ break;
+ default:
+ break;
+ }
+ }
+ spin_unlock_irqrestore(&pm_qos_lock, irqflags);
+
+ return val;
+}
+EXPORT_SYMBOL(pm_qos_request_for_cpumask);
+
static void __pm_qos_update_request(struct pm_qos_request *req,
s32 new_value)
{
@@ -413,7 +499,7 @@ static void __pm_qos_update_request(struct pm_qos_request *req,
if (new_value != req->node.prio)
pm_qos_update_target(
pm_qos_array[req->pm_qos_class]->constraints,
- &req->node, PM_QOS_UPDATE_REQ, new_value);
+ &req->node, PM_QOS_UPDATE_REQ, new_value, false);
}
/**
@@ -431,6 +517,43 @@ static void pm_qos_work_fn(struct work_struct *work)
__pm_qos_update_request(req, PM_QOS_DEFAULT_VALUE);
}
+#ifdef CONFIG_SMP
+static void pm_qos_irq_release(struct kref *ref)
+{
+ unsigned long flags;
+ struct irq_affinity_notify *notify = container_of(ref,
+ struct irq_affinity_notify, kref);
+ struct pm_qos_request *req = container_of(notify,
+ struct pm_qos_request, irq_notify);
+ struct pm_qos_constraints *c =
+ pm_qos_array[req->pm_qos_class]->constraints;
+
+ spin_lock_irqsave(&pm_qos_lock, flags);
+ cpumask_setall(&req->cpus_affine);
+ spin_unlock_irqrestore(&pm_qos_lock, flags);
+
+ pm_qos_update_target(c, &req->node, PM_QOS_UPDATE_REQ,
+ c->default_value, false);
+}
+
+static void pm_qos_irq_notify(struct irq_affinity_notify *notify,
+ const cpumask_t *mask)
+{
+ unsigned long flags;
+ struct pm_qos_request *req = container_of(notify,
+ struct pm_qos_request, irq_notify);
+ struct pm_qos_constraints *c =
+ pm_qos_array[req->pm_qos_class]->constraints;
+
+ spin_lock_irqsave(&pm_qos_lock, flags);
+ cpumask_copy(&req->cpus_affine, mask);
+ spin_unlock_irqrestore(&pm_qos_lock, flags);
+
+ pm_qos_update_target(c, &req->node, PM_QOS_UPDATE_REQ, req->node.prio,
+ false);
+}
+#endif
+
/**
* pm_qos_add_request - inserts new qos request into the list
* @req: pointer to a preallocated handle
@@ -454,11 +577,71 @@ void pm_qos_add_request(struct pm_qos_request *req,
WARN(1, KERN_ERR "pm_qos_add_request() called for already added request\n");
return;
}
+
+ switch (req->type) {
+ case PM_QOS_REQ_AFFINE_CORES:
+ if (cpumask_empty(&req->cpus_affine)) {
+ req->type = PM_QOS_REQ_ALL_CORES;
+ cpumask_setall(&req->cpus_affine);
+ WARN(1, "Affine cores not set for request with affinity flag\n");
+ }
+ break;
+#ifdef CONFIG_SMP
+ case PM_QOS_REQ_AFFINE_IRQ:
+ if (irq_can_set_affinity(req->irq)) {
+ struct irq_desc *desc = irq_to_desc(req->irq);
+ struct cpumask *mask;
+
+ if (!desc)
+ return;
+
+ mask = desc->irq_data.common->affinity;
+
+ /* Get the current affinity */
+ cpumask_copy(&req->cpus_affine, mask);
+ req->irq_notify.irq = req->irq;
+ req->irq_notify.notify = pm_qos_irq_notify;
+ req->irq_notify.release = pm_qos_irq_release;
+
+ } else {
+ req->type = PM_QOS_REQ_ALL_CORES;
+ cpumask_setall(&req->cpus_affine);
+ WARN(1, "IRQ-%d not set for request with affinity flag\n",
+ req->irq);
+ }
+ break;
+#endif
+ default:
+ WARN(1, "Unknown request type %d\n", req->type);
+ /* fall through */
+ case PM_QOS_REQ_ALL_CORES:
+ cpumask_setall(&req->cpus_affine);
+ break;
+ }
+
req->pm_qos_class = pm_qos_class;
INIT_DELAYED_WORK(&req->work, pm_qos_work_fn);
trace_pm_qos_add_request(pm_qos_class, value);
pm_qos_update_target(pm_qos_array[pm_qos_class]->constraints,
- &req->node, PM_QOS_ADD_REQ, value);
+ &req->node, PM_QOS_ADD_REQ, value, false);
+
+#ifdef CONFIG_SMP
+ if (req->type == PM_QOS_REQ_AFFINE_IRQ &&
+ irq_can_set_affinity(req->irq)) {
+ int ret = 0;
+
+ ret = irq_set_affinity_notifier(req->irq,
+ &req->irq_notify);
+ if (ret) {
+ WARN(1, "IRQ affinity notify set failed\n");
+ req->type = PM_QOS_REQ_ALL_CORES;
+ cpumask_setall(&req->cpus_affine);
+ pm_qos_update_target(
+ pm_qos_array[pm_qos_class]->constraints,
+ &req->node, PM_QOS_UPDATE_REQ, value, false);
+ }
+ }
+#endif
}
EXPORT_SYMBOL_GPL(pm_qos_add_request);
@@ -512,10 +695,11 @@ void pm_qos_update_request_timeout(struct pm_qos_request *req, s32 new_value,
if (new_value != req->node.prio)
pm_qos_update_target(
pm_qos_array[req->pm_qos_class]->constraints,
- &req->node, PM_QOS_UPDATE_REQ, new_value);
+ &req->node, PM_QOS_UPDATE_REQ, new_value, false);
schedule_delayed_work(&req->work, usecs_to_jiffies(timeout_us));
}
+EXPORT_SYMBOL_GPL(pm_qos_update_request_timeout);
/**
* pm_qos_remove_request - modifies an existing qos request
@@ -541,7 +725,7 @@ void pm_qos_remove_request(struct pm_qos_request *req)
trace_pm_qos_remove_request(req->pm_qos_class, PM_QOS_DEFAULT_VALUE);
pm_qos_update_target(pm_qos_array[req->pm_qos_class]->constraints,
&req->node, PM_QOS_REMOVE_REQ,
- PM_QOS_DEFAULT_VALUE);
+ PM_QOS_DEFAULT_VALUE, false);
memset(req, 0, sizeof(*req));
}
EXPORT_SYMBOL_GPL(pm_qos_remove_request);
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index f2635fc..2505d25 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -1145,24 +1145,24 @@ void free_basic_memory_bitmaps(void)
void clear_free_pages(void)
{
-#ifdef CONFIG_PAGE_POISONING_ZERO
struct memory_bitmap *bm = free_pages_map;
unsigned long pfn;
if (WARN_ON(!(free_pages_map)))
return;
- memory_bm_position_reset(bm);
- pfn = memory_bm_next_pfn(bm);
- while (pfn != BM_END_OF_MAP) {
- if (pfn_valid(pfn))
- clear_highpage(pfn_to_page(pfn));
-
+ if (IS_ENABLED(CONFIG_PAGE_POISONING_ZERO) || want_init_on_free()) {
+ memory_bm_position_reset(bm);
pfn = memory_bm_next_pfn(bm);
+ while (pfn != BM_END_OF_MAP) {
+ if (pfn_valid(pfn))
+ clear_highpage(pfn_to_page(pfn));
+
+ pfn = memory_bm_next_pfn(bm);
+ }
+ memory_bm_position_reset(bm);
+ pr_info("free pages cleared after restore\n");
}
- memory_bm_position_reset(bm);
- pr_info("free pages cleared after restore\n");
-#endif /* PAGE_POISONING_ZERO */
}
/**
diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c
index 0bd595a..365d1e8 100644
--- a/kernel/power/suspend.c
+++ b/kernel/power/suspend.c
@@ -32,6 +32,7 @@
#include <trace/events/power.h>
#include <linux/compiler.h>
#include <linux/moduleparam.h>
+#include <linux/wakeup_reason.h>
#include "power.h"
@@ -75,6 +76,7 @@ void s2idle_set_ops(const struct platform_s2idle_ops *ops)
s2idle_ops = ops;
unlock_system_sleep();
}
+EXPORT_SYMBOL_GPL(s2idle_set_ops);
static void s2idle_begin(void)
{
@@ -154,6 +156,7 @@ static void s2idle_loop(void)
break;
pm_wakeup_clear(false);
+ clear_wakeup_reasons();
}
pm_pr_dbg("resume from suspend-to-idle\n");
@@ -367,6 +370,7 @@ static int suspend_prepare(suspend_state_t state)
if (!error)
return 0;
+ log_suspend_abort_reason("One or more tasks refusing to freeze");
suspend_stats.failed_freeze++;
dpm_save_failed_step(SUSPEND_FREEZE);
Finish:
@@ -396,7 +400,7 @@ void __weak arch_suspend_enable_irqs(void)
*/
static int suspend_enter(suspend_state_t state, bool *wakeup)
{
- int error;
+ int error, last_dev;
error = platform_suspend_prepare(state);
if (error)
@@ -404,7 +408,11 @@ static int suspend_enter(suspend_state_t state, bool *wakeup)
error = dpm_suspend_late(PMSG_SUSPEND);
if (error) {
+ last_dev = suspend_stats.last_failed_dev + REC_FAILED_NUM - 1;
+ last_dev %= REC_FAILED_NUM;
pr_err("late suspend of devices failed\n");
+ log_suspend_abort_reason("late suspend of %s device failed",
+ suspend_stats.failed_devs[last_dev]);
goto Platform_finish;
}
error = platform_suspend_prepare_late(state);
@@ -418,7 +426,11 @@ static int suspend_enter(suspend_state_t state, bool *wakeup)
error = dpm_suspend_noirq(PMSG_SUSPEND);
if (error) {
+ last_dev = suspend_stats.last_failed_dev + REC_FAILED_NUM - 1;
+ last_dev %= REC_FAILED_NUM;
pr_err("noirq suspend of devices failed\n");
+ log_suspend_abort_reason("noirq suspend of %s device failed",
+ suspend_stats.failed_devs[last_dev]);
goto Platform_early_resume;
}
error = platform_suspend_prepare_noirq(state);
@@ -429,8 +441,10 @@ static int suspend_enter(suspend_state_t state, bool *wakeup)
goto Platform_wake;
error = disable_nonboot_cpus();
- if (error || suspend_test(TEST_CPUS))
+ if (error || suspend_test(TEST_CPUS)) {
+ log_suspend_abort_reason("Disabling non-boot cpus failed");
goto Enable_cpus;
+ }
arch_suspend_disable_irqs();
BUG_ON(!irqs_disabled());
@@ -498,6 +512,8 @@ int suspend_devices_and_enter(suspend_state_t state)
error = dpm_suspend_start(PMSG_SUSPEND);
if (error) {
pr_err("Some devices failed to suspend, or early wake event detected\n");
+ log_suspend_abort_reason(
+ "Some devices failed to suspend, or early wake event detected");
goto Recover_platform;
}
suspend_test_finish("suspend devices");
diff --git a/kernel/power/wakelock.c b/kernel/power/wakelock.c
index 4210152..105df4d 100644
--- a/kernel/power/wakelock.c
+++ b/kernel/power/wakelock.c
@@ -27,7 +27,7 @@ static DEFINE_MUTEX(wakelocks_lock);
struct wakelock {
char *name;
struct rb_node node;
- struct wakeup_source ws;
+ struct wakeup_source *ws;
#ifdef CONFIG_PM_WAKELOCKS_GC
struct list_head lru;
#endif
@@ -46,7 +46,7 @@ ssize_t pm_show_wakelocks(char *buf, bool show_active)
for (node = rb_first(&wakelocks_tree); node; node = rb_next(node)) {
wl = rb_entry(node, struct wakelock, node);
- if (wl->ws.active == show_active)
+ if (wl->ws->active == show_active)
str += scnprintf(str, end - str, "%s ", wl->name);
}
if (str > buf)
@@ -112,16 +112,16 @@ static void __wakelocks_gc(struct work_struct *work)
u64 idle_time_ns;
bool active;
- spin_lock_irq(&wl->ws.lock);
- idle_time_ns = ktime_to_ns(ktime_sub(now, wl->ws.last_time));
- active = wl->ws.active;
- spin_unlock_irq(&wl->ws.lock);
+ spin_lock_irq(&wl->ws->lock);
+ idle_time_ns = ktime_to_ns(ktime_sub(now, wl->ws->last_time));
+ active = wl->ws->active;
+ spin_unlock_irq(&wl->ws->lock);
if (idle_time_ns < ((u64)WL_GC_TIME_SEC * NSEC_PER_SEC))
break;
if (!active) {
- wakeup_source_remove(&wl->ws);
+ wakeup_source_unregister(wl->ws);
rb_erase(&wl->node, &wakelocks_tree);
list_del(&wl->lru);
kfree(wl->name);
@@ -187,9 +187,15 @@ static struct wakelock *wakelock_lookup_add(const char *name, size_t len,
kfree(wl);
return ERR_PTR(-ENOMEM);
}
- wl->ws.name = wl->name;
- wl->ws.last_time = ktime_get();
- wakeup_source_add(&wl->ws);
+
+ wl->ws = wakeup_source_register(NULL, wl->name);
+ if (!wl->ws) {
+ kfree(wl->name);
+ kfree(wl);
+ return ERR_PTR(-ENOMEM);
+ }
+ wl->ws->last_time = ktime_get();
+
rb_link_node(&wl->node, parent, node);
rb_insert_color(&wl->node, &wakelocks_tree);
wakelocks_lru_add(wl);
@@ -233,9 +239,9 @@ int pm_wake_lock(const char *buf)
u64 timeout_ms = timeout_ns + NSEC_PER_MSEC - 1;
do_div(timeout_ms, NSEC_PER_MSEC);
- __pm_wakeup_event(&wl->ws, timeout_ms);
+ __pm_wakeup_event(wl->ws, timeout_ms);
} else {
- __pm_stay_awake(&wl->ws);
+ __pm_stay_awake(wl->ws);
}
wakelocks_lru_most_recent(wl);
@@ -271,7 +277,7 @@ int pm_wake_unlock(const char *buf)
ret = PTR_ERR(wl);
goto out;
}
- __pm_relax(&wl->ws);
+ __pm_relax(wl->ws);
wakelocks_lru_most_recent(wl);
wakelocks_gc();
diff --git a/kernel/power/wakeup_reason.c b/kernel/power/wakeup_reason.c
new file mode 100644
index 0000000..3c118c04
--- /dev/null
+++ b/kernel/power/wakeup_reason.c
@@ -0,0 +1,417 @@
+/*
+ * kernel/power/wakeup_reason.c
+ *
+ * Logs the reasons which caused the kernel to resume from
+ * the suspend mode.
+ *
+ * Copyright (C) 2020 Google, Inc.
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/wakeup_reason.h>
+#include <linux/kernel.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/kobject.h>
+#include <linux/sysfs.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/notifier.h>
+#include <linux/suspend.h>
+#include <linux/slab.h>
+
+/*
+ * struct wakeup_irq_node - stores data and relationships for IRQs logged as
+ * either base or nested wakeup reasons during suspend/resume flow.
+ * @siblings - for membership on leaf or parent IRQ lists
+ * @irq - the IRQ number
+ * @irq_name - the name associated with the IRQ, or a default if none
+ */
+struct wakeup_irq_node {
+ struct list_head siblings;
+ int irq;
+ const char *irq_name;
+};
+
+static DEFINE_SPINLOCK(wakeup_reason_lock);
+
+static LIST_HEAD(leaf_irqs); /* kept in ascending IRQ sorted order */
+static LIST_HEAD(parent_irqs); /* unordered */
+
+static struct kmem_cache *wakeup_irq_nodes_cache;
+
+static const char *default_irq_name = "(unnamed)";
+
+static struct kobject *kobj;
+
+static bool capture_reasons;
+static bool suspend_abort;
+static bool abnormal_wake;
+static char non_irq_wake_reason[MAX_SUSPEND_ABORT_LEN];
+
+static ktime_t last_monotime; /* monotonic time before last suspend */
+static ktime_t curr_monotime; /* monotonic time after last suspend */
+static ktime_t last_stime; /* monotonic boottime offset before last suspend */
+static ktime_t curr_stime; /* monotonic boottime offset after last suspend */
+
+static void init_node(struct wakeup_irq_node *p, int irq)
+{
+ struct irq_desc *desc;
+
+ INIT_LIST_HEAD(&p->siblings);
+
+ p->irq = irq;
+ desc = irq_to_desc(irq);
+ if (desc && desc->action && desc->action->name)
+ p->irq_name = desc->action->name;
+ else
+ p->irq_name = default_irq_name;
+}
+
+static struct wakeup_irq_node *create_node(int irq)
+{
+ struct wakeup_irq_node *result;
+
+ result = kmem_cache_alloc(wakeup_irq_nodes_cache, GFP_ATOMIC);
+ if (unlikely(!result))
+ pr_warn("Failed to log wakeup IRQ %d\n", irq);
+ else
+ init_node(result, irq);
+
+ return result;
+}
+
+static void delete_list(struct list_head *head)
+{
+ struct wakeup_irq_node *n;
+
+ while (!list_empty(head)) {
+ n = list_first_entry(head, struct wakeup_irq_node, siblings);
+ list_del(&n->siblings);
+ kmem_cache_free(wakeup_irq_nodes_cache, n);
+ }
+}
+
+static bool add_sibling_node_sorted(struct list_head *head, int irq)
+{
+ struct wakeup_irq_node *n = NULL;
+ struct list_head *predecessor = head;
+
+ if (unlikely(WARN_ON(!head)))
+ return NULL;
+
+ if (!list_empty(head))
+ list_for_each_entry(n, head, siblings) {
+ if (n->irq < irq)
+ predecessor = &n->siblings;
+ else if (n->irq == irq)
+ return true;
+ else
+ break;
+ }
+
+ n = create_node(irq);
+ if (n) {
+ list_add(&n->siblings, predecessor);
+ return true;
+ }
+
+ return false;
+}
+
+static struct wakeup_irq_node *find_node_in_list(struct list_head *head,
+ int irq)
+{
+ struct wakeup_irq_node *n;
+
+ if (unlikely(WARN_ON(!head)))
+ return NULL;
+
+ list_for_each_entry(n, head, siblings)
+ if (n->irq == irq)
+ return n;
+
+ return NULL;
+}
+
+void log_irq_wakeup_reason(int irq)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&wakeup_reason_lock, flags);
+
+ if (!capture_reasons) {
+ spin_unlock_irqrestore(&wakeup_reason_lock, flags);
+ return;
+ }
+
+ if (find_node_in_list(&parent_irqs, irq) == NULL)
+ add_sibling_node_sorted(&leaf_irqs, irq);
+
+ spin_unlock_irqrestore(&wakeup_reason_lock, flags);
+}
+
+void log_threaded_irq_wakeup_reason(int irq, int parent_irq)
+{
+ struct wakeup_irq_node *parent;
+ unsigned long flags;
+
+ /*
+ * Intentionally unsynchronized. Calls that come in after we have
+ * resumed should have a fast exit path since there's no work to be
+ * done, any any coherence issue that could cause a wrong value here is
+ * both highly improbable - given the set/clear timing - and very low
+ * impact (parent IRQ gets logged instead of the specific child).
+ */
+ if (!capture_reasons)
+ return;
+
+ spin_lock_irqsave(&wakeup_reason_lock, flags);
+
+ if (!capture_reasons || (find_node_in_list(&leaf_irqs, irq) != NULL)) {
+ spin_unlock_irqrestore(&wakeup_reason_lock, flags);
+ return;
+ }
+
+ parent = find_node_in_list(&parent_irqs, parent_irq);
+ if (parent != NULL)
+ add_sibling_node_sorted(&leaf_irqs, irq);
+ else {
+ parent = find_node_in_list(&leaf_irqs, parent_irq);
+ if (parent != NULL) {
+ list_del_init(&parent->siblings);
+ list_add_tail(&parent->siblings, &parent_irqs);
+ add_sibling_node_sorted(&leaf_irqs, irq);
+ }
+ }
+
+ spin_unlock_irqrestore(&wakeup_reason_lock, flags);
+}
+
+static void __log_abort_or_abnormal_wake(bool abort, const char *fmt,
+ va_list args)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&wakeup_reason_lock, flags);
+
+ /* Suspend abort or abnormal wake reason has already been logged. */
+ if (suspend_abort || abnormal_wake) {
+ spin_unlock_irqrestore(&wakeup_reason_lock, flags);
+ return;
+ }
+
+ suspend_abort = abort;
+ abnormal_wake = !abort;
+ vsnprintf(non_irq_wake_reason, MAX_SUSPEND_ABORT_LEN, fmt, args);
+
+ spin_unlock_irqrestore(&wakeup_reason_lock, flags);
+}
+
+void log_suspend_abort_reason(const char *fmt, ...)
+{
+ va_list args;
+
+ va_start(args, fmt);
+ __log_abort_or_abnormal_wake(true, fmt, args);
+ va_end(args);
+}
+
+void log_abnormal_wakeup_reason(const char *fmt, ...)
+{
+ va_list args;
+
+ va_start(args, fmt);
+ __log_abort_or_abnormal_wake(false, fmt, args);
+ va_end(args);
+}
+
+void clear_wakeup_reasons(void)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&wakeup_reason_lock, flags);
+
+ delete_list(&leaf_irqs);
+ delete_list(&parent_irqs);
+ suspend_abort = false;
+ abnormal_wake = false;
+ capture_reasons = true;
+
+ spin_unlock_irqrestore(&wakeup_reason_lock, flags);
+}
+
+static void print_wakeup_sources(void)
+{
+ struct wakeup_irq_node *n;
+ unsigned long flags;
+
+ spin_lock_irqsave(&wakeup_reason_lock, flags);
+
+ capture_reasons = false;
+
+ if (suspend_abort) {
+ pr_info("Abort: %s\n", non_irq_wake_reason);
+ spin_unlock_irqrestore(&wakeup_reason_lock, flags);
+ return;
+ }
+
+ if (!list_empty(&leaf_irqs))
+ list_for_each_entry(n, &leaf_irqs, siblings)
+ pr_info("Resume caused by IRQ %d, %s\n", n->irq,
+ n->irq_name);
+ else if (abnormal_wake)
+ pr_info("Resume caused by %s\n", non_irq_wake_reason);
+ else
+ pr_info("Resume cause unknown\n");
+
+ spin_unlock_irqrestore(&wakeup_reason_lock, flags);
+}
+
+static ssize_t last_resume_reason_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buf)
+{
+ ssize_t buf_offset = 0;
+ struct wakeup_irq_node *n;
+ unsigned long flags;
+
+ spin_lock_irqsave(&wakeup_reason_lock, flags);
+
+ if (suspend_abort) {
+ buf_offset = scnprintf(buf, PAGE_SIZE, "Abort: %s",
+ non_irq_wake_reason);
+ spin_unlock_irqrestore(&wakeup_reason_lock, flags);
+ return buf_offset;
+ }
+
+ if (!list_empty(&leaf_irqs))
+ list_for_each_entry(n, &leaf_irqs, siblings)
+ buf_offset += scnprintf(buf + buf_offset,
+ PAGE_SIZE - buf_offset,
+ "%d %s\n", n->irq, n->irq_name);
+ else if (abnormal_wake)
+ buf_offset = scnprintf(buf, PAGE_SIZE, "-1 %s",
+ non_irq_wake_reason);
+
+ spin_unlock_irqrestore(&wakeup_reason_lock, flags);
+
+ return buf_offset;
+}
+
+static ssize_t last_suspend_time_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buf)
+{
+ struct timespec64 sleep_time;
+ struct timespec64 total_time;
+ struct timespec64 suspend_resume_time;
+
+ /*
+ * total_time is calculated from monotonic bootoffsets because
+ * unlike CLOCK_MONOTONIC it include the time spent in suspend state.
+ */
+ total_time = ktime_to_timespec64(ktime_sub(curr_stime, last_stime));
+
+ /*
+ * suspend_resume_time is calculated as monotonic (CLOCK_MONOTONIC)
+ * time interval before entering suspend and post suspend.
+ */
+ suspend_resume_time =
+ ktime_to_timespec64(ktime_sub(curr_monotime, last_monotime));
+
+ /* sleep_time = total_time - suspend_resume_time */
+ sleep_time = timespec64_sub(total_time, suspend_resume_time);
+
+ /* Export suspend_resume_time and sleep_time in pair here. */
+ return sprintf(buf, "%llu.%09lu %llu.%09lu\n",
+ (unsigned long long)suspend_resume_time.tv_sec,
+ suspend_resume_time.tv_nsec,
+ (unsigned long long)sleep_time.tv_sec,
+ sleep_time.tv_nsec);
+}
+
+static struct kobj_attribute resume_reason = __ATTR_RO(last_resume_reason);
+static struct kobj_attribute suspend_time = __ATTR_RO(last_suspend_time);
+
+static struct attribute *attrs[] = {
+ &resume_reason.attr,
+ &suspend_time.attr,
+ NULL,
+};
+static struct attribute_group attr_group = {
+ .attrs = attrs,
+};
+
+/* Detects a suspend and clears all the previous wake up reasons*/
+static int wakeup_reason_pm_event(struct notifier_block *notifier,
+ unsigned long pm_event, void *unused)
+{
+ switch (pm_event) {
+ case PM_SUSPEND_PREPARE:
+ /* monotonic time since boot */
+ last_monotime = ktime_get();
+ /* monotonic time since boot including the time spent in suspend */
+ last_stime = ktime_get_boottime();
+ clear_wakeup_reasons();
+ break;
+ case PM_POST_SUSPEND:
+ /* monotonic time since boot */
+ curr_monotime = ktime_get();
+ /* monotonic time since boot including the time spent in suspend */
+ curr_stime = ktime_get_boottime();
+ print_wakeup_sources();
+ break;
+ default:
+ break;
+ }
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block wakeup_reason_pm_notifier_block = {
+ .notifier_call = wakeup_reason_pm_event,
+};
+
+static int __init wakeup_reason_init(void)
+{
+ if (register_pm_notifier(&wakeup_reason_pm_notifier_block)) {
+ pr_warn("[%s] failed to register PM notifier\n", __func__);
+ goto fail;
+ }
+
+ kobj = kobject_create_and_add("wakeup_reasons", kernel_kobj);
+ if (!kobj) {
+ pr_warn("[%s] failed to create a sysfs kobject\n", __func__);
+ goto fail_unregister_pm_notifier;
+ }
+
+ if (sysfs_create_group(kobj, &attr_group)) {
+ pr_warn("[%s] failed to create a sysfs group\n", __func__);
+ goto fail_kobject_put;
+ }
+
+ wakeup_irq_nodes_cache =
+ kmem_cache_create("wakeup_irq_node_cache",
+ sizeof(struct wakeup_irq_node), 0, 0, NULL);
+ if (!wakeup_irq_nodes_cache)
+ goto fail_remove_group;
+
+ return 0;
+
+fail_remove_group:
+ sysfs_remove_group(kobj, &attr_group);
+fail_kobject_put:
+ kobject_put(kobj);
+fail_unregister_pm_notifier:
+ unregister_pm_notifier(&wakeup_reason_pm_notifier_block);
+fail:
+ return 1;
+}
+
+late_initcall(wakeup_reason_init);
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index cf272ab..3ccbca5 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -460,12 +460,14 @@ char *log_buf_addr_get(void)
{
return log_buf;
}
+EXPORT_SYMBOL_GPL(log_buf_addr_get);
/* Return log buffer size */
u32 log_buf_len_get(void)
{
return log_buf_len;
}
+EXPORT_SYMBOL_GPL(log_buf_len_get);
/* human readable text of the record */
static char *log_text(const struct printk_log *msg)
diff --git a/kernel/reboot.c b/kernel/reboot.c
index 45bea54..3a87fee 100644
--- a/kernel/reboot.c
+++ b/kernel/reboot.c
@@ -31,6 +31,7 @@ EXPORT_SYMBOL(cad_pid);
#define DEFAULT_REBOOT_MODE
#endif
enum reboot_mode reboot_mode DEFAULT_REBOOT_MODE;
+enum reboot_mode panic_reboot_mode = REBOOT_UNDEFINED;
/*
* This variable is used privately to keep track of whether or not
@@ -518,6 +519,8 @@ EXPORT_SYMBOL_GPL(orderly_reboot);
static int __init reboot_setup(char *str)
{
for (;;) {
+ enum reboot_mode *mode;
+
/*
* Having anything passed on the command line via
* reboot= will cause us to disable DMI checking
@@ -525,17 +528,24 @@ static int __init reboot_setup(char *str)
*/
reboot_default = 0;
+ if (!strncmp(str, "panic_", 6)) {
+ mode = &panic_reboot_mode;
+ str += 6;
+ } else {
+ mode = &reboot_mode;
+ }
+
switch (*str) {
case 'w':
- reboot_mode = REBOOT_WARM;
+ *mode = REBOOT_WARM;
break;
case 'c':
- reboot_mode = REBOOT_COLD;
+ *mode = REBOOT_COLD;
break;
case 'h':
- reboot_mode = REBOOT_HARD;
+ *mode = REBOOT_HARD;
break;
case 's':
@@ -545,7 +555,7 @@ static int __init reboot_setup(char *str)
isdigit(*(str+3)))
reboot_cpu = simple_strtoul(str+3, NULL, 0);
else
- reboot_mode = REBOOT_SOFT;
+ *mode = REBOOT_SOFT;
if (reboot_cpu >= num_possible_cpus()) {
pr_err("Ignoring the CPU number in reboot= option. "
"CPU %d exceeds possible cpu number %d\n",
@@ -556,7 +566,7 @@ static int __init reboot_setup(char *str)
break;
case 'g':
- reboot_mode = REBOOT_GPIO;
+ *mode = REBOOT_GPIO;
break;
case 'b':
diff --git a/kernel/sched/Makefile b/kernel/sched/Makefile
index 7fe1834..f6d19e3 100644
--- a/kernel/sched/Makefile
+++ b/kernel/sched/Makefile
@@ -19,13 +19,16 @@
obj-y += core.o loadavg.o clock.o cputime.o
obj-y += idle.o fair.o rt.o deadline.o
obj-y += wait.o wait_bit.o swait.o completion.o
+obj-y += stubs.o
obj-$(CONFIG_SMP) += cpupri.o cpudeadline.o topology.o stop_task.o pelt.o
obj-$(CONFIG_SCHED_AUTOGROUP) += autogroup.o
obj-$(CONFIG_SCHEDSTATS) += stats.o
obj-$(CONFIG_SCHED_DEBUG) += debug.o
+obj-$(CONFIG_SCHED_TUNE) += tune.o
obj-$(CONFIG_CGROUP_CPUACCT) += cpuacct.o
obj-$(CONFIG_CPU_FREQ) += cpufreq.o
obj-$(CONFIG_CPU_FREQ_GOV_SCHEDUTIL) += cpufreq_schedutil.o
obj-$(CONFIG_MEMBARRIER) += membarrier.o
obj-$(CONFIG_CPU_ISOLATION) += isolation.o
+obj-$(CONFIG_PSI) += psi.o
diff --git a/kernel/sched/OWNERS b/kernel/sched/OWNERS
new file mode 100644
index 0000000..fc027b6
--- /dev/null
+++ b/kernel/sched/OWNERS
@@ -0,0 +1,2 @@
+# include OWNERS from the authoritative android-mainline branch
+include kernel/common:android-mainline:/kernel/sched/OWNERS
diff --git a/kernel/sched/autogroup.c b/kernel/sched/autogroup.c
index 2d4ff53..2067080 100644
--- a/kernel/sched/autogroup.c
+++ b/kernel/sched/autogroup.c
@@ -259,7 +259,6 @@ void proc_sched_autogroup_show_task(struct task_struct *p, struct seq_file *m)
}
#endif /* CONFIG_PROC_FS */
-#ifdef CONFIG_SCHED_DEBUG
int autogroup_path(struct task_group *tg, char *buf, int buflen)
{
if (!task_group_is_autogroup(tg))
@@ -267,4 +266,3 @@ int autogroup_path(struct task_group *tg, char *buf, int buflen)
return snprintf(buf, buflen, "%s-%ld", "/autogroup", tg->autogroup->id);
}
-#endif
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 013b1c6..d2bbb1e 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -10,6 +10,7 @@
#include <linux/nospec.h>
#include <linux/kcov.h>
+#include <linux/scs.h>
#include <asm/switch_to.h>
#include <asm/tlb.h>
@@ -181,6 +182,7 @@ static void update_rq_clock_task(struct rq *rq, s64 delta)
if ((irq_delta + steal) && sched_feat(NONTASK_CAPACITY))
update_irq_load_avg(rq, irq_delta + steal);
#endif
+ update_rq_clock_pelt(rq, delta);
}
void update_rq_clock(struct rq *rq)
@@ -413,6 +415,8 @@ void wake_q_add(struct wake_q_head *head, struct task_struct *task)
if (cmpxchg_relaxed(&node->next, NULL, WAKE_Q_TAIL))
return;
+ head->count++;
+
get_task_struct(task);
/*
@@ -422,6 +426,10 @@ void wake_q_add(struct wake_q_head *head, struct task_struct *task)
head->lastp = &node->next;
}
+static int
+try_to_wake_up(struct task_struct *p, unsigned int state, int wake_flags,
+ int sibling_count_hint);
+
void wake_up_q(struct wake_q_head *head)
{
struct wake_q_node *node = head->first;
@@ -436,10 +444,10 @@ void wake_up_q(struct wake_q_head *head)
task->wake_q.next = NULL;
/*
- * wake_up_process() executes a full barrier, which pairs with
+ * try_to_wake_up() executes a full barrier, which pairs with
* the queueing in wake_q_add() so as not to miss wakeups.
*/
- wake_up_process(task);
+ try_to_wake_up(task, TASK_NORMAL, 0, head->count);
put_task_struct(task);
}
}
@@ -702,6 +710,7 @@ static void set_load_weight(struct task_struct *p, bool update_load)
if (idle_policy(p->policy)) {
load->weight = scale_load(WEIGHT_IDLEPRIO);
load->inv_weight = WMULT_IDLEPRIO;
+ p->se.runnable_weight = load->weight;
return;
}
@@ -714,17 +723,604 @@ static void set_load_weight(struct task_struct *p, bool update_load)
} else {
load->weight = scale_load(sched_prio_to_weight[prio]);
load->inv_weight = sched_prio_to_wmult[prio];
+ p->se.runnable_weight = load->weight;
}
}
+#ifdef CONFIG_UCLAMP_TASK
+/*
+ * Serializes updates of utilization clamp values
+ *
+ * The (slow-path) user-space triggers utilization clamp value updates which
+ * can require updates on (fast-path) scheduler's data structures used to
+ * support enqueue/dequeue operations.
+ * While the per-CPU rq lock protects fast-path update operations, user-space
+ * requests are serialized using a mutex to reduce the risk of conflicting
+ * updates or API abuses.
+ */
+static DEFINE_MUTEX(uclamp_mutex);
+
+/* Max allowed minimum utilization */
+unsigned int sysctl_sched_uclamp_util_min = SCHED_CAPACITY_SCALE;
+
+/* Max allowed maximum utilization */
+unsigned int sysctl_sched_uclamp_util_max = SCHED_CAPACITY_SCALE;
+
+/* All clamps are required to be less or equal than these values */
+static struct uclamp_se uclamp_default[UCLAMP_CNT];
+
+/* Integer rounded range for each bucket */
+#define UCLAMP_BUCKET_DELTA DIV_ROUND_CLOSEST(SCHED_CAPACITY_SCALE, UCLAMP_BUCKETS)
+
+#define for_each_clamp_id(clamp_id) \
+ for ((clamp_id) = 0; (clamp_id) < UCLAMP_CNT; (clamp_id)++)
+
+static inline unsigned int uclamp_bucket_id(unsigned int clamp_value)
+{
+ return min_t(unsigned int, clamp_value / UCLAMP_BUCKET_DELTA, UCLAMP_BUCKETS - 1);
+}
+
+static inline unsigned int uclamp_bucket_base_value(unsigned int clamp_value)
+{
+ return UCLAMP_BUCKET_DELTA * uclamp_bucket_id(clamp_value);
+}
+
+static inline unsigned int uclamp_none(enum uclamp_id clamp_id)
+{
+ if (clamp_id == UCLAMP_MIN)
+ return 0;
+ return SCHED_CAPACITY_SCALE;
+}
+
+static inline void uclamp_se_set(struct uclamp_se *uc_se,
+ unsigned int value, bool user_defined)
+{
+ uc_se->value = value;
+ uc_se->bucket_id = uclamp_bucket_id(value);
+ uc_se->user_defined = user_defined;
+}
+
+static inline unsigned int
+uclamp_idle_value(struct rq *rq, enum uclamp_id clamp_id,
+ unsigned int clamp_value)
+{
+ /*
+ * Avoid blocked utilization pushing up the frequency when we go
+ * idle (which drops the max-clamp) by retaining the last known
+ * max-clamp.
+ */
+ if (clamp_id == UCLAMP_MAX) {
+ rq->uclamp_flags |= UCLAMP_FLAG_IDLE;
+ return clamp_value;
+ }
+
+ return uclamp_none(UCLAMP_MIN);
+}
+
+static inline void uclamp_idle_reset(struct rq *rq, enum uclamp_id clamp_id,
+ unsigned int clamp_value)
+{
+ /* Reset max-clamp retention only on idle exit */
+ if (!(rq->uclamp_flags & UCLAMP_FLAG_IDLE))
+ return;
+
+ WRITE_ONCE(rq->uclamp[clamp_id].value, clamp_value);
+}
+
+static inline
+unsigned int uclamp_rq_max_value(struct rq *rq, enum uclamp_id clamp_id,
+ unsigned int clamp_value)
+{
+ struct uclamp_bucket *bucket = rq->uclamp[clamp_id].bucket;
+ int bucket_id = UCLAMP_BUCKETS - 1;
+
+ /*
+ * Since both min and max clamps are max aggregated, find the
+ * top most bucket with tasks in.
+ */
+ for ( ; bucket_id >= 0; bucket_id--) {
+ if (!bucket[bucket_id].tasks)
+ continue;
+ return bucket[bucket_id].value;
+ }
+
+ /* No tasks -- default clamp values */
+ return uclamp_idle_value(rq, clamp_id, clamp_value);
+}
+
+static inline struct uclamp_se
+uclamp_tg_restrict(struct task_struct *p, enum uclamp_id clamp_id)
+{
+ struct uclamp_se uc_req = p->uclamp_req[clamp_id];
+#ifdef CONFIG_UCLAMP_TASK_GROUP
+ struct uclamp_se uc_max;
+
+ /*
+ * Tasks in autogroups or root task group will be
+ * restricted by system defaults.
+ */
+ if (task_group_is_autogroup(task_group(p)))
+ return uc_req;
+ if (task_group(p) == &root_task_group)
+ return uc_req;
+
+ uc_max = task_group(p)->uclamp[clamp_id];
+ if (uc_req.value > uc_max.value || !uc_req.user_defined)
+ return uc_max;
+#endif
+
+ return uc_req;
+}
+
+/*
+ * The effective clamp bucket index of a task depends on, by increasing
+ * priority:
+ * - the task specific clamp value, when explicitly requested from userspace
+ * - the task group effective clamp value, for tasks not either in the root
+ * group or in an autogroup
+ * - the system default clamp value, defined by the sysadmin
+ */
+static inline struct uclamp_se
+uclamp_eff_get(struct task_struct *p, enum uclamp_id clamp_id)
+{
+ struct uclamp_se uc_req = uclamp_tg_restrict(p, clamp_id);
+ struct uclamp_se uc_max = uclamp_default[clamp_id];
+
+ /* System default restrictions always apply */
+ if (unlikely(uc_req.value > uc_max.value))
+ return uc_max;
+
+ return uc_req;
+}
+
+unsigned long uclamp_eff_value(struct task_struct *p, enum uclamp_id clamp_id)
+{
+ struct uclamp_se uc_eff;
+
+ /* Task currently refcounted: use back-annotated (effective) value */
+ if (p->uclamp[clamp_id].active)
+ return (unsigned long)p->uclamp[clamp_id].value;
+
+ uc_eff = uclamp_eff_get(p, clamp_id);
+
+ return (unsigned long)uc_eff.value;
+}
+
+/*
+ * When a task is enqueued on a rq, the clamp bucket currently defined by the
+ * task's uclamp::bucket_id is refcounted on that rq. This also immediately
+ * updates the rq's clamp value if required.
+ *
+ * Tasks can have a task-specific value requested from user-space, track
+ * within each bucket the maximum value for tasks refcounted in it.
+ * This "local max aggregation" allows to track the exact "requested" value
+ * for each bucket when all its RUNNABLE tasks require the same clamp.
+ */
+static inline void uclamp_rq_inc_id(struct rq *rq, struct task_struct *p,
+ enum uclamp_id clamp_id)
+{
+ struct uclamp_rq *uc_rq = &rq->uclamp[clamp_id];
+ struct uclamp_se *uc_se = &p->uclamp[clamp_id];
+ struct uclamp_bucket *bucket;
+
+ lockdep_assert_held(&rq->lock);
+
+ /* Update task effective clamp */
+ p->uclamp[clamp_id] = uclamp_eff_get(p, clamp_id);
+
+ bucket = &uc_rq->bucket[uc_se->bucket_id];
+ bucket->tasks++;
+ uc_se->active = true;
+
+ uclamp_idle_reset(rq, clamp_id, uc_se->value);
+
+ /*
+ * Local max aggregation: rq buckets always track the max
+ * "requested" clamp value of its RUNNABLE tasks.
+ */
+ if (bucket->tasks == 1 || uc_se->value > bucket->value)
+ bucket->value = uc_se->value;
+
+ if (uc_se->value > READ_ONCE(uc_rq->value))
+ WRITE_ONCE(uc_rq->value, uc_se->value);
+}
+
+/*
+ * When a task is dequeued from a rq, the clamp bucket refcounted by the task
+ * is released. If this is the last task reference counting the rq's max
+ * active clamp value, then the rq's clamp value is updated.
+ *
+ * Both refcounted tasks and rq's cached clamp values are expected to be
+ * always valid. If it's detected they are not, as defensive programming,
+ * enforce the expected state and warn.
+ */
+static inline void uclamp_rq_dec_id(struct rq *rq, struct task_struct *p,
+ enum uclamp_id clamp_id)
+{
+ struct uclamp_rq *uc_rq = &rq->uclamp[clamp_id];
+ struct uclamp_se *uc_se = &p->uclamp[clamp_id];
+ struct uclamp_bucket *bucket;
+ unsigned int bkt_clamp;
+ unsigned int rq_clamp;
+
+ lockdep_assert_held(&rq->lock);
+
+ bucket = &uc_rq->bucket[uc_se->bucket_id];
+ SCHED_WARN_ON(!bucket->tasks);
+ if (likely(bucket->tasks))
+ bucket->tasks--;
+ uc_se->active = false;
+
+ /*
+ * Keep "local max aggregation" simple and accept to (possibly)
+ * overboost some RUNNABLE tasks in the same bucket.
+ * The rq clamp bucket value is reset to its base value whenever
+ * there are no more RUNNABLE tasks refcounting it.
+ */
+ if (likely(bucket->tasks))
+ return;
+
+ rq_clamp = READ_ONCE(uc_rq->value);
+ /*
+ * Defensive programming: this should never happen. If it happens,
+ * e.g. due to future modification, warn and fixup the expected value.
+ */
+ SCHED_WARN_ON(bucket->value > rq_clamp);
+ if (bucket->value >= rq_clamp) {
+ bkt_clamp = uclamp_rq_max_value(rq, clamp_id, uc_se->value);
+ WRITE_ONCE(uc_rq->value, bkt_clamp);
+ }
+}
+
+static inline void uclamp_rq_inc(struct rq *rq, struct task_struct *p)
+{
+ enum uclamp_id clamp_id;
+
+ if (unlikely(!p->sched_class->uclamp_enabled))
+ return;
+
+ for_each_clamp_id(clamp_id)
+ uclamp_rq_inc_id(rq, p, clamp_id);
+
+ /* Reset clamp idle holding when there is one RUNNABLE task */
+ if (rq->uclamp_flags & UCLAMP_FLAG_IDLE)
+ rq->uclamp_flags &= ~UCLAMP_FLAG_IDLE;
+}
+
+static inline void uclamp_rq_dec(struct rq *rq, struct task_struct *p)
+{
+ enum uclamp_id clamp_id;
+
+ if (unlikely(!p->sched_class->uclamp_enabled))
+ return;
+
+ for_each_clamp_id(clamp_id)
+ uclamp_rq_dec_id(rq, p, clamp_id);
+}
+
+static inline void
+uclamp_update_active(struct task_struct *p, enum uclamp_id clamp_id)
+{
+ struct rq_flags rf;
+ struct rq *rq;
+
+ /*
+ * Lock the task and the rq where the task is (or was) queued.
+ *
+ * We might lock the (previous) rq of a !RUNNABLE task, but that's the
+ * price to pay to safely serialize util_{min,max} updates with
+ * enqueues, dequeues and migration operations.
+ * This is the same locking schema used by __set_cpus_allowed_ptr().
+ */
+ rq = task_rq_lock(p, &rf);
+
+ /*
+ * Setting the clamp bucket is serialized by task_rq_lock().
+ * If the task is not yet RUNNABLE and its task_struct is not
+ * affecting a valid clamp bucket, the next time it's enqueued,
+ * it will already see the updated clamp bucket value.
+ */
+ if (p->uclamp[clamp_id].active) {
+ uclamp_rq_dec_id(rq, p, clamp_id);
+ uclamp_rq_inc_id(rq, p, clamp_id);
+ }
+
+ task_rq_unlock(rq, p, &rf);
+}
+
+#ifdef CONFIG_UCLAMP_TASK_GROUP
+static inline void
+uclamp_update_active_tasks(struct cgroup_subsys_state *css,
+ unsigned int clamps)
+{
+ enum uclamp_id clamp_id;
+ struct css_task_iter it;
+ struct task_struct *p;
+
+ css_task_iter_start(css, 0, &it);
+ while ((p = css_task_iter_next(&it))) {
+ for_each_clamp_id(clamp_id) {
+ if ((0x1 << clamp_id) & clamps)
+ uclamp_update_active(p, clamp_id);
+ }
+ }
+ css_task_iter_end(&it);
+}
+
+static void cpu_util_update_eff(struct cgroup_subsys_state *css);
+static void uclamp_update_root_tg(void)
+{
+ struct task_group *tg = &root_task_group;
+
+ uclamp_se_set(&tg->uclamp_req[UCLAMP_MIN],
+ sysctl_sched_uclamp_util_min, false);
+ uclamp_se_set(&tg->uclamp_req[UCLAMP_MAX],
+ sysctl_sched_uclamp_util_max, false);
+
+ rcu_read_lock();
+ cpu_util_update_eff(&root_task_group.css);
+ rcu_read_unlock();
+}
+#else
+static void uclamp_update_root_tg(void) { }
+#endif
+
+int sysctl_sched_uclamp_handler(struct ctl_table *table, int write,
+ void __user *buffer, size_t *lenp,
+ loff_t *ppos)
+{
+ bool update_root_tg = false;
+ int old_min, old_max;
+ int result;
+
+ mutex_lock(&uclamp_mutex);
+ old_min = sysctl_sched_uclamp_util_min;
+ old_max = sysctl_sched_uclamp_util_max;
+
+ result = proc_dointvec(table, write, buffer, lenp, ppos);
+ if (result)
+ goto undo;
+ if (!write)
+ goto done;
+
+ if (sysctl_sched_uclamp_util_min > sysctl_sched_uclamp_util_max ||
+ sysctl_sched_uclamp_util_max > SCHED_CAPACITY_SCALE) {
+ result = -EINVAL;
+ goto undo;
+ }
+
+ if (old_min != sysctl_sched_uclamp_util_min) {
+ uclamp_se_set(&uclamp_default[UCLAMP_MIN],
+ sysctl_sched_uclamp_util_min, false);
+ update_root_tg = true;
+ }
+ if (old_max != sysctl_sched_uclamp_util_max) {
+ uclamp_se_set(&uclamp_default[UCLAMP_MAX],
+ sysctl_sched_uclamp_util_max, false);
+ update_root_tg = true;
+ }
+
+ if (update_root_tg)
+ uclamp_update_root_tg();
+
+ /*
+ * We update all RUNNABLE tasks only when task groups are in use.
+ * Otherwise, keep it simple and do just a lazy update at each next
+ * task enqueue time.
+ */
+
+ goto done;
+
+undo:
+ sysctl_sched_uclamp_util_min = old_min;
+ sysctl_sched_uclamp_util_max = old_max;
+done:
+ mutex_unlock(&uclamp_mutex);
+
+ return result;
+}
+
+static int uclamp_validate(struct task_struct *p,
+ const struct sched_attr *attr)
+{
+ unsigned int lower_bound = p->uclamp_req[UCLAMP_MIN].value;
+ unsigned int upper_bound = p->uclamp_req[UCLAMP_MAX].value;
+
+ if (attr->sched_flags & SCHED_FLAG_UTIL_CLAMP_MIN)
+ lower_bound = attr->sched_util_min;
+ if (attr->sched_flags & SCHED_FLAG_UTIL_CLAMP_MAX)
+ upper_bound = attr->sched_util_max;
+
+ if (lower_bound > upper_bound)
+ return -EINVAL;
+ if (upper_bound > SCHED_CAPACITY_SCALE)
+ return -EINVAL;
+
+ return 0;
+}
+
+static void __setscheduler_uclamp(struct task_struct *p,
+ const struct sched_attr *attr)
+{
+ enum uclamp_id clamp_id;
+
+ /*
+ * On scheduling class change, reset to default clamps for tasks
+ * without a task-specific value.
+ */
+ for_each_clamp_id(clamp_id) {
+ struct uclamp_se *uc_se = &p->uclamp_req[clamp_id];
+ unsigned int clamp_value = uclamp_none(clamp_id);
+
+ /* Keep using defined clamps across class changes */
+ if (uc_se->user_defined)
+ continue;
+
+ /* By default, RT tasks always get 100% boost */
+ if (sched_feat(SUGOV_RT_MAX_FREQ) &&
+ unlikely(rt_task(p) &&
+ clamp_id == UCLAMP_MIN)) {
+
+ clamp_value = uclamp_none(UCLAMP_MAX);
+ }
+
+ uclamp_se_set(uc_se, clamp_value, false);
+ }
+
+ if (likely(!(attr->sched_flags & SCHED_FLAG_UTIL_CLAMP)))
+ return;
+
+ if (attr->sched_flags & SCHED_FLAG_UTIL_CLAMP_MIN) {
+ uclamp_se_set(&p->uclamp_req[UCLAMP_MIN],
+ attr->sched_util_min, true);
+ }
+
+ if (attr->sched_flags & SCHED_FLAG_UTIL_CLAMP_MAX) {
+ uclamp_se_set(&p->uclamp_req[UCLAMP_MAX],
+ attr->sched_util_max, true);
+ }
+}
+
+static void uclamp_fork(struct task_struct *p)
+{
+ enum uclamp_id clamp_id;
+
+ for_each_clamp_id(clamp_id)
+ p->uclamp[clamp_id].active = false;
+
+ if (likely(!p->sched_reset_on_fork))
+ return;
+
+ for_each_clamp_id(clamp_id) {
+ uclamp_se_set(&p->uclamp_req[clamp_id],
+ uclamp_none(clamp_id), false);
+ }
+}
+
+#ifdef CONFIG_SMP
+unsigned int uclamp_task(struct task_struct *p)
+{
+ unsigned long util;
+
+ util = task_util_est(p);
+ util = max(util, uclamp_eff_value(p, UCLAMP_MIN));
+ util = min(util, uclamp_eff_value(p, UCLAMP_MAX));
+
+ return util;
+}
+
+bool uclamp_boosted(struct task_struct *p)
+{
+ return uclamp_eff_value(p, UCLAMP_MIN) > 0;
+}
+
+bool uclamp_latency_sensitive(struct task_struct *p)
+{
+#ifdef CONFIG_UCLAMP_TASK_GROUP
+ struct cgroup_subsys_state *css = task_css(p, cpu_cgrp_id);
+ struct task_group *tg;
+
+ if (!css)
+ return false;
+ tg = container_of(css, struct task_group, css);
+
+ return tg->latency_sensitive;
+#else
+ return false;
+#endif
+}
+#endif /* CONFIG_SMP */
+
+static void __init init_uclamp(void)
+{
+ struct uclamp_se uc_max = {};
+ enum uclamp_id clamp_id;
+ int cpu;
+
+ mutex_init(&uclamp_mutex);
+
+ for_each_possible_cpu(cpu) {
+ memset(&cpu_rq(cpu)->uclamp, 0,
+ sizeof(struct uclamp_rq)*UCLAMP_CNT);
+ cpu_rq(cpu)->uclamp_flags = 0;
+ }
+
+ for_each_clamp_id(clamp_id) {
+ uclamp_se_set(&init_task.uclamp_req[clamp_id],
+ uclamp_none(clamp_id), false);
+ }
+
+ /* System defaults allow max clamp values for both indexes */
+ uclamp_se_set(&uc_max, uclamp_none(UCLAMP_MAX), false);
+ for_each_clamp_id(clamp_id) {
+ uclamp_default[clamp_id] = uc_max;
+#ifdef CONFIG_UCLAMP_TASK_GROUP
+ root_task_group.uclamp_req[clamp_id] = uc_max;
+ root_task_group.uclamp[clamp_id] = uc_max;
+#endif
+ }
+}
+
+#else /* CONFIG_UCLAMP_TASK */
+static inline void uclamp_rq_inc(struct rq *rq, struct task_struct *p) { }
+static inline void uclamp_rq_dec(struct rq *rq, struct task_struct *p) { }
+static inline int uclamp_validate(struct task_struct *p,
+ const struct sched_attr *attr)
+{
+ return -EOPNOTSUPP;
+}
+static void __setscheduler_uclamp(struct task_struct *p,
+ const struct sched_attr *attr) { }
+static inline void uclamp_fork(struct task_struct *p) { }
+
+long schedtune_task_margin(struct task_struct *task);
+
+#ifdef CONFIG_SMP
+unsigned int uclamp_task(struct task_struct *p)
+{
+ unsigned long util = task_util_est(p);
+#ifdef CONFIG_SCHED_TUNE
+ long margin = schedtune_task_margin(p);
+
+ trace_sched_boost_task(p, util, margin);
+
+ util += margin;
+#endif
+
+ return util;
+}
+
+bool uclamp_boosted(struct task_struct *p)
+{
+#ifdef CONFIG_SCHED_TUNE
+ return schedtune_task_boost(p) > 0;
+#endif
+ return false;
+}
+
+bool uclamp_latency_sensitive(struct task_struct *p)
+{
+#ifdef CONFIG_SCHED_TUNE
+ return schedtune_prefer_idle(p) != 0;
+#endif
+ return false;
+}
+#endif /* CONFIG_SMP */
+
+static inline void init_uclamp(void) { }
+#endif /* CONFIG_UCLAMP_TASK */
+
static inline void enqueue_task(struct rq *rq, struct task_struct *p, int flags)
{
if (!(flags & ENQUEUE_NOCLOCK))
update_rq_clock(rq);
- if (!(flags & ENQUEUE_RESTORE))
+ if (!(flags & ENQUEUE_RESTORE)) {
sched_info_queued(rq, p);
+ psi_enqueue(p, flags & ENQUEUE_WAKEUP);
+ }
+ uclamp_rq_inc(rq, p);
p->sched_class->enqueue_task(rq, p, flags);
}
@@ -733,9 +1329,12 @@ static inline void dequeue_task(struct rq *rq, struct task_struct *p, int flags)
if (!(flags & DEQUEUE_NOCLOCK))
update_rq_clock(rq);
- if (!(flags & DEQUEUE_SAVE))
+ if (!(flags & DEQUEUE_SAVE)) {
sched_info_dequeued(rq, p);
+ psi_dequeue(p, flags & DEQUEUE_SLEEP);
+ }
+ uclamp_rq_dec(rq, p);
p->sched_class->dequeue_task(rq, p, flags);
}
@@ -1524,12 +2123,14 @@ static int select_fallback_rq(int cpu, struct task_struct *p)
* The caller (fork, wakeup) owns p->pi_lock, ->cpus_allowed is stable.
*/
static inline
-int select_task_rq(struct task_struct *p, int cpu, int sd_flags, int wake_flags)
+int select_task_rq(struct task_struct *p, int cpu, int sd_flags, int wake_flags,
+ int sibling_count_hint)
{
lockdep_assert_held(&p->pi_lock);
if (p->nr_cpus_allowed > 1)
- cpu = p->sched_class->select_task_rq(p, cpu, sd_flags, wake_flags);
+ cpu = p->sched_class->select_task_rq(p, cpu, sd_flags, wake_flags,
+ sibling_count_hint);
else
cpu = cpumask_any(&p->cpus_allowed);
@@ -1932,6 +2533,8 @@ static void ttwu_queue(struct task_struct *p, int cpu, int wake_flags)
* @p: the thread to be awakened
* @state: the mask of task states that can be woken
* @wake_flags: wake modifier flags (WF_*)
+ * @sibling_count_hint: A hint at the number of threads that are being woken up
+ * in this event.
*
* If (@state & @p->state) @p->state = TASK_RUNNING.
*
@@ -1947,7 +2550,8 @@ static void ttwu_queue(struct task_struct *p, int cpu, int wake_flags)
* %false otherwise.
*/
static int
-try_to_wake_up(struct task_struct *p, unsigned int state, int wake_flags)
+try_to_wake_up(struct task_struct *p, unsigned int state, int wake_flags,
+ int sibling_count_hint)
{
unsigned long flags;
int cpu, success = 0;
@@ -2034,9 +2638,11 @@ try_to_wake_up(struct task_struct *p, unsigned int state, int wake_flags)
atomic_dec(&task_rq(p)->nr_iowait);
}
- cpu = select_task_rq(p, p->wake_cpu, SD_BALANCE_WAKE, wake_flags);
+ cpu = select_task_rq(p, p->wake_cpu, SD_BALANCE_WAKE, wake_flags,
+ sibling_count_hint);
if (task_cpu(p) != cpu) {
wake_flags |= WF_MIGRATED;
+ psi_ttwu_dequeue(p);
set_task_cpu(p, cpu);
}
@@ -2121,13 +2727,13 @@ static void try_to_wake_up_local(struct task_struct *p, struct rq_flags *rf)
*/
int wake_up_process(struct task_struct *p)
{
- return try_to_wake_up(p, TASK_NORMAL, 0);
+ return try_to_wake_up(p, TASK_NORMAL, 0, 1);
}
EXPORT_SYMBOL(wake_up_process);
int wake_up_state(struct task_struct *p, unsigned int state)
{
- return try_to_wake_up(p, state, 0);
+ return try_to_wake_up(p, state, 0, 1);
}
/*
@@ -2307,6 +2913,8 @@ int sched_fork(unsigned long clone_flags, struct task_struct *p)
*/
p->prio = current->normal_prio;
+ uclamp_fork(p);
+
/*
* Revert to default priority/policy on fork if requested.
*/
@@ -2411,7 +3019,7 @@ void wake_up_new_task(struct task_struct *p)
*/
p->recent_used_cpu = task_cpu(p);
rseq_migrate(p);
- __set_task_cpu(p, select_task_rq(p, task_cpu(p), SD_BALANCE_FORK, 0));
+ __set_task_cpu(p, select_task_rq(p, task_cpu(p), SD_BALANCE_FORK, 0, 1));
#endif
rq = __task_rq_lock(p, &rf);
update_rq_clock(rq);
@@ -2950,7 +3558,7 @@ void sched_exec(void)
int dest_cpu;
raw_spin_lock_irqsave(&p->pi_lock, flags);
- dest_cpu = p->sched_class->select_task_rq(p, task_cpu(p), SD_BALANCE_EXEC, 0);
+ dest_cpu = p->sched_class->select_task_rq(p, task_cpu(p), SD_BALANCE_EXEC, 0, 1);
if (dest_cpu == smp_processor_id())
goto unlock;
@@ -3053,6 +3661,7 @@ void scheduler_tick(void)
curr->sched_class->task_tick(rq, curr, 0);
cpu_load_update_active(rq);
calc_global_load_tick(rq);
+ psi_task_tick(rq);
rq_unlock(rq, &rf);
@@ -3752,7 +4361,7 @@ asmlinkage __visible void __sched preempt_schedule_irq(void)
int default_wake_function(wait_queue_entry_t *curr, unsigned mode, int wake_flags,
void *key)
{
- return try_to_wake_up(curr->private, mode, wake_flags);
+ return try_to_wake_up(curr->private, mode, wake_flags, 1);
}
EXPORT_SYMBOL(default_wake_function);
@@ -4123,6 +4732,13 @@ static void __setscheduler_params(struct task_struct *p,
static void __setscheduler(struct rq *rq, struct task_struct *p,
const struct sched_attr *attr, bool keep_boost)
{
+ /*
+ * If params can't change scheduling class changes aren't allowed
+ * either.
+ */
+ if (attr->sched_flags & SCHED_FLAG_KEEP_PARAMS)
+ return;
+
__setscheduler_params(p, attr);
/*
@@ -4260,6 +4876,13 @@ static int __sched_setscheduler(struct task_struct *p,
return retval;
}
+ /* Update task specific "requested" clamps */
+ if (attr->sched_flags & SCHED_FLAG_UTIL_CLAMP) {
+ retval = uclamp_validate(p, attr);
+ if (retval)
+ return retval;
+ }
+
/*
* Make sure no PI-waiters arrive (or leave) while we are
* changing the priority of the task:
@@ -4289,6 +4912,8 @@ static int __sched_setscheduler(struct task_struct *p,
goto change;
if (dl_policy(policy) && dl_param_changed(p, attr))
goto change;
+ if (attr->sched_flags & SCHED_FLAG_UTIL_CLAMP)
+ goto change;
p->sched_reset_on_fork = reset_on_fork;
task_rq_unlock(rq, p, &rf);
@@ -4369,7 +4994,9 @@ static int __sched_setscheduler(struct task_struct *p,
put_prev_task(rq, p);
prev_class = p->sched_class;
+
__setscheduler(rq, p, attr, pi);
+ __setscheduler_uclamp(p, attr);
if (queued) {
/*
@@ -4545,6 +5172,10 @@ static int sched_copy_attr(struct sched_attr __user *uattr, struct sched_attr *a
if (ret)
return -EFAULT;
+ if ((attr->sched_flags & SCHED_FLAG_UTIL_CLAMP) &&
+ size < SCHED_ATTR_SIZE_VER1)
+ return -EINVAL;
+
/*
* XXX: Do we want to be lenient like existing syscalls; or do we want
* to be strict and return an error on out-of-bounds values?
@@ -4608,14 +5239,21 @@ SYSCALL_DEFINE3(sched_setattr, pid_t, pid, struct sched_attr __user *, uattr,
if ((int)attr.sched_policy < 0)
return -EINVAL;
+ if (attr.sched_flags & SCHED_FLAG_KEEP_POLICY)
+ attr.sched_policy = SETPARAM_POLICY;
rcu_read_lock();
retval = -ESRCH;
p = find_process_by_pid(pid);
- if (p != NULL)
- retval = sched_setattr(p, &attr);
+ if (likely(p))
+ get_task_struct(p);
rcu_read_unlock();
+ if (likely(p)) {
+ retval = sched_setattr(p, &attr);
+ put_task_struct(p);
+ }
+
return retval;
}
@@ -4690,37 +5328,40 @@ SYSCALL_DEFINE2(sched_getparam, pid_t, pid, struct sched_param __user *, param)
return retval;
}
-static int sched_read_attr(struct sched_attr __user *uattr,
- struct sched_attr *attr,
- unsigned int usize)
+/*
+ * Copy the kernel size attribute structure (which might be larger
+ * than what user-space knows about) to user-space.
+ *
+ * Note that all cases are valid: user-space buffer can be larger or
+ * smaller than the kernel-space buffer. The usual case is that both
+ * have the same size.
+ */
+static int
+sched_attr_copy_to_user(struct sched_attr __user *uattr,
+ struct sched_attr *kattr,
+ unsigned int usize)
{
- int ret;
+ unsigned int ksize = sizeof(*kattr);
if (!access_ok(VERIFY_WRITE, uattr, usize))
return -EFAULT;
/*
- * If we're handed a smaller struct than we know of,
- * ensure all the unknown bits are 0 - i.e. old
- * user-space does not get uncomplete information.
+ * sched_getattr() ABI forwards and backwards compatibility:
+ *
+ * If usize == ksize then we just copy everything to user-space and all is good.
+ *
+ * If usize < ksize then we only copy as much as user-space has space for,
+ * this keeps ABI compatibility as well. We skip the rest.
+ *
+ * If usize > ksize then user-space is using a newer version of the ABI,
+ * which part the kernel doesn't know about. Just ignore it - tooling can
+ * detect the kernel's knowledge of attributes from the attr->size value
+ * which is set to ksize in this case.
*/
- if (usize < sizeof(*attr)) {
- unsigned char *addr;
- unsigned char *end;
+ kattr->size = min(usize, ksize);
- addr = (void *)attr + usize;
- end = (void *)attr + sizeof(*attr);
-
- for (; addr < end; addr++) {
- if (*addr)
- return -EFBIG;
- }
-
- attr->size = usize;
- }
-
- ret = copy_to_user(uattr, attr, attr->size);
- if (ret)
+ if (copy_to_user(uattr, kattr, kattr->size))
return -EFAULT;
return 0;
@@ -4730,20 +5371,18 @@ static int sched_read_attr(struct sched_attr __user *uattr,
* sys_sched_getattr - similar to sched_getparam, but with sched_attr
* @pid: the pid in question.
* @uattr: structure containing the extended parameters.
- * @size: sizeof(attr) for fwd/bwd comp.
+ * @usize: sizeof(attr) that user-space knows about, for forwards and backwards compatibility.
* @flags: for future extension.
*/
SYSCALL_DEFINE4(sched_getattr, pid_t, pid, struct sched_attr __user *, uattr,
- unsigned int, size, unsigned int, flags)
+ unsigned int, usize, unsigned int, flags)
{
- struct sched_attr attr = {
- .size = sizeof(struct sched_attr),
- };
+ struct sched_attr kattr = { };
struct task_struct *p;
int retval;
- if (!uattr || pid < 0 || size > PAGE_SIZE ||
- size < SCHED_ATTR_SIZE_VER0 || flags)
+ if (!uattr || pid < 0 || usize > PAGE_SIZE ||
+ usize < SCHED_ATTR_SIZE_VER0 || flags)
return -EINVAL;
rcu_read_lock();
@@ -4756,20 +5395,24 @@ SYSCALL_DEFINE4(sched_getattr, pid_t, pid, struct sched_attr __user *, uattr,
if (retval)
goto out_unlock;
- attr.sched_policy = p->policy;
+ kattr.sched_policy = p->policy;
if (p->sched_reset_on_fork)
- attr.sched_flags |= SCHED_FLAG_RESET_ON_FORK;
+ kattr.sched_flags |= SCHED_FLAG_RESET_ON_FORK;
if (task_has_dl_policy(p))
- __getparam_dl(p, &attr);
+ __getparam_dl(p, &kattr);
else if (task_has_rt_policy(p))
- attr.sched_priority = p->rt_priority;
+ kattr.sched_priority = p->rt_priority;
else
- attr.sched_nice = task_nice(p);
+ kattr.sched_nice = task_nice(p);
+
+#ifdef CONFIG_UCLAMP_TASK
+ kattr.sched_util_min = p->uclamp_req[UCLAMP_MIN].value;
+ kattr.sched_util_max = p->uclamp_req[UCLAMP_MAX].value;
+#endif
rcu_read_unlock();
- retval = sched_read_attr(uattr, &attr, size);
- return retval;
+ return sched_attr_copy_to_user(uattr, &kattr, usize);
out_unlock:
rcu_read_unlock();
@@ -4864,6 +5507,7 @@ long sched_setaffinity(pid_t pid, const struct cpumask *in_mask)
put_task_struct(p);
return retval;
}
+EXPORT_SYMBOL_GPL(sched_setaffinity);
static int get_user_cpu_mask(unsigned long __user *user_mask_ptr, unsigned len,
struct cpumask *new_mask)
@@ -4977,9 +5621,7 @@ static void do_sched_yield(void)
struct rq_flags rf;
struct rq *rq;
- local_irq_disable();
- rq = this_rq();
- rq_lock(rq, &rf);
+ rq = this_rq_lock_irq(&rf);
schedstat_inc(rq->yld_count);
current->sched_class->yield_task(rq);
@@ -5421,6 +6063,7 @@ void init_idle(struct task_struct *idle, int cpu)
idle->se.exec_start = sched_clock();
idle->flags |= PF_IDLE;
+ scs_task_reset(idle);
kasan_unpoison_task_stack(idle);
#ifdef CONFIG_SMP
@@ -6117,6 +6760,10 @@ void __init sched_init(void)
init_schedstats();
+ psi_init();
+
+ init_uclamp();
+
scheduler_running = 1;
}
@@ -6286,6 +6933,20 @@ void ia64_set_curr_task(int cpu, struct task_struct *p)
/* task_group_lock serializes the addition/removal of task groups */
static DEFINE_SPINLOCK(task_group_lock);
+static inline void alloc_uclamp_sched_group(struct task_group *tg,
+ struct task_group *parent)
+{
+#ifdef CONFIG_UCLAMP_TASK_GROUP
+ enum uclamp_id clamp_id;
+
+ for_each_clamp_id(clamp_id) {
+ uclamp_se_set(&tg->uclamp_req[clamp_id],
+ uclamp_none(clamp_id), false);
+ tg->uclamp[clamp_id] = parent->uclamp[clamp_id];
+ }
+#endif
+}
+
static void sched_free_group(struct task_group *tg)
{
free_fair_sched_group(tg);
@@ -6309,6 +6970,8 @@ struct task_group *sched_create_group(struct task_group *parent)
if (!alloc_rt_sched_group(tg, parent))
goto err;
+ alloc_uclamp_sched_group(tg, parent);
+
return tg;
err:
@@ -6448,6 +7111,12 @@ static int cpu_cgroup_css_online(struct cgroup_subsys_state *css)
if (parent)
sched_online_group(tg, parent);
+
+#ifdef CONFIG_UCLAMP_TASK_GROUP
+ /* Propagate the effective uclamp value for the new group */
+ cpu_util_update_eff(css);
+#endif
+
return 0;
}
@@ -6525,6 +7194,199 @@ static void cpu_cgroup_attach(struct cgroup_taskset *tset)
sched_move_task(task);
}
+#ifdef CONFIG_UCLAMP_TASK_GROUP
+static void cpu_util_update_eff(struct cgroup_subsys_state *css)
+{
+ struct cgroup_subsys_state *top_css = css;
+ struct uclamp_se *uc_parent = NULL;
+ struct uclamp_se *uc_se = NULL;
+ unsigned int eff[UCLAMP_CNT];
+ enum uclamp_id clamp_id;
+ unsigned int clamps;
+
+ css_for_each_descendant_pre(css, top_css) {
+ uc_parent = css_tg(css)->parent
+ ? css_tg(css)->parent->uclamp : NULL;
+
+ for_each_clamp_id(clamp_id) {
+ /* Assume effective clamps matches requested clamps */
+ eff[clamp_id] = css_tg(css)->uclamp_req[clamp_id].value;
+ /* Cap effective clamps with parent's effective clamps */
+ if (uc_parent &&
+ eff[clamp_id] > uc_parent[clamp_id].value) {
+ eff[clamp_id] = uc_parent[clamp_id].value;
+ }
+ }
+ /* Ensure protection is always capped by limit */
+ eff[UCLAMP_MIN] = min(eff[UCLAMP_MIN], eff[UCLAMP_MAX]);
+
+ /* Propagate most restrictive effective clamps */
+ clamps = 0x0;
+ uc_se = css_tg(css)->uclamp;
+ for_each_clamp_id(clamp_id) {
+ if (eff[clamp_id] == uc_se[clamp_id].value)
+ continue;
+ uc_se[clamp_id].value = eff[clamp_id];
+ uc_se[clamp_id].bucket_id = uclamp_bucket_id(eff[clamp_id]);
+ clamps |= (0x1 << clamp_id);
+ }
+ if (!clamps) {
+ css = css_rightmost_descendant(css);
+ continue;
+ }
+
+ /* Immediately update descendants RUNNABLE tasks */
+ uclamp_update_active_tasks(css, clamps);
+ }
+}
+
+/*
+ * Integer 10^N with a given N exponent by casting to integer the literal "1eN"
+ * C expression. Since there is no way to convert a macro argument (N) into a
+ * character constant, use two levels of macros.
+ */
+#define _POW10(exp) ((unsigned int)1e##exp)
+#define POW10(exp) _POW10(exp)
+
+struct uclamp_request {
+#define UCLAMP_PERCENT_SHIFT 2
+#define UCLAMP_PERCENT_SCALE (100 * POW10(UCLAMP_PERCENT_SHIFT))
+ s64 percent;
+ u64 util;
+ int ret;
+};
+
+static inline struct uclamp_request
+capacity_from_percent(char *buf)
+{
+ struct uclamp_request req = {
+ .percent = UCLAMP_PERCENT_SCALE,
+ .util = SCHED_CAPACITY_SCALE,
+ .ret = 0,
+ };
+
+ buf = strim(buf);
+ if (strcmp(buf, "max")) {
+ req.ret = cgroup_parse_float(buf, UCLAMP_PERCENT_SHIFT,
+ &req.percent);
+ if (req.ret)
+ return req;
+ if ((u64)req.percent > UCLAMP_PERCENT_SCALE) {
+ req.ret = -ERANGE;
+ return req;
+ }
+
+ req.util = req.percent << SCHED_CAPACITY_SHIFT;
+ req.util = DIV_ROUND_CLOSEST_ULL(req.util, UCLAMP_PERCENT_SCALE);
+ }
+
+ return req;
+}
+
+static ssize_t cpu_uclamp_write(struct kernfs_open_file *of, char *buf,
+ size_t nbytes, loff_t off,
+ enum uclamp_id clamp_id)
+{
+ struct uclamp_request req;
+ struct task_group *tg;
+
+ req = capacity_from_percent(buf);
+ if (req.ret)
+ return req.ret;
+
+ mutex_lock(&uclamp_mutex);
+ rcu_read_lock();
+
+ tg = css_tg(of_css(of));
+ if (tg->uclamp_req[clamp_id].value != req.util)
+ uclamp_se_set(&tg->uclamp_req[clamp_id], req.util, false);
+
+ /*
+ * Because of not recoverable conversion rounding we keep track of the
+ * exact requested value
+ */
+ tg->uclamp_pct[clamp_id] = req.percent;
+
+ /* Update effective clamps to track the most restrictive value */
+ cpu_util_update_eff(of_css(of));
+
+ rcu_read_unlock();
+ mutex_unlock(&uclamp_mutex);
+
+ return nbytes;
+}
+
+static ssize_t cpu_uclamp_min_write(struct kernfs_open_file *of,
+ char *buf, size_t nbytes,
+ loff_t off)
+{
+ return cpu_uclamp_write(of, buf, nbytes, off, UCLAMP_MIN);
+}
+
+static ssize_t cpu_uclamp_max_write(struct kernfs_open_file *of,
+ char *buf, size_t nbytes,
+ loff_t off)
+{
+ return cpu_uclamp_write(of, buf, nbytes, off, UCLAMP_MAX);
+}
+
+static inline void cpu_uclamp_print(struct seq_file *sf,
+ enum uclamp_id clamp_id)
+{
+ struct task_group *tg;
+ u64 util_clamp;
+ u64 percent;
+ u32 rem;
+
+ rcu_read_lock();
+ tg = css_tg(seq_css(sf));
+ util_clamp = tg->uclamp_req[clamp_id].value;
+ rcu_read_unlock();
+
+ if (util_clamp == SCHED_CAPACITY_SCALE) {
+ seq_puts(sf, "max\n");
+ return;
+ }
+
+ percent = tg->uclamp_pct[clamp_id];
+ percent = div_u64_rem(percent, POW10(UCLAMP_PERCENT_SHIFT), &rem);
+ seq_printf(sf, "%llu.%0*u\n", percent, UCLAMP_PERCENT_SHIFT, rem);
+}
+
+static int cpu_uclamp_min_show(struct seq_file *sf, void *v)
+{
+ cpu_uclamp_print(sf, UCLAMP_MIN);
+ return 0;
+}
+
+static int cpu_uclamp_max_show(struct seq_file *sf, void *v)
+{
+ cpu_uclamp_print(sf, UCLAMP_MAX);
+ return 0;
+}
+
+static int cpu_uclamp_ls_write_u64(struct cgroup_subsys_state *css,
+ struct cftype *cftype, u64 ls)
+{
+ struct task_group *tg;
+
+ if (ls > 1)
+ return -EINVAL;
+ tg = css_tg(css);
+ tg->latency_sensitive = (unsigned int) ls;
+
+ return 0;
+}
+
+static u64 cpu_uclamp_ls_read_u64(struct cgroup_subsys_state *css,
+ struct cftype *cft)
+{
+ struct task_group *tg = css_tg(css);
+
+ return (u64) tg->latency_sensitive;
+}
+#endif /* CONFIG_UCLAMP_TASK_GROUP */
+
#ifdef CONFIG_FAIR_GROUP_SCHED
static int cpu_shares_write_u64(struct cgroup_subsys_state *css,
struct cftype *cftype, u64 shareval)
@@ -6870,6 +7732,26 @@ static struct cftype cpu_legacy_files[] = {
.write_u64 = cpu_rt_period_write_uint,
},
#endif
+#ifdef CONFIG_UCLAMP_TASK_GROUP
+ {
+ .name = "uclamp.min",
+ .flags = CFTYPE_NOT_ON_ROOT,
+ .seq_show = cpu_uclamp_min_show,
+ .write = cpu_uclamp_min_write,
+ },
+ {
+ .name = "uclamp.max",
+ .flags = CFTYPE_NOT_ON_ROOT,
+ .seq_show = cpu_uclamp_max_show,
+ .write = cpu_uclamp_max_write,
+ },
+ {
+ .name = "uclamp.latency_sensitive",
+ .flags = CFTYPE_NOT_ON_ROOT,
+ .read_u64 = cpu_uclamp_ls_read_u64,
+ .write_u64 = cpu_uclamp_ls_write_u64,
+ },
+#endif
{ } /* Terminate */
};
@@ -7037,6 +7919,26 @@ static struct cftype cpu_files[] = {
.write = cpu_max_write,
},
#endif
+#ifdef CONFIG_UCLAMP_TASK_GROUP
+ {
+ .name = "uclamp.min",
+ .flags = CFTYPE_NOT_ON_ROOT,
+ .seq_show = cpu_uclamp_min_show,
+ .write = cpu_uclamp_min_write,
+ },
+ {
+ .name = "uclamp.max",
+ .flags = CFTYPE_NOT_ON_ROOT,
+ .seq_show = cpu_uclamp_max_show,
+ .write = cpu_uclamp_max_write,
+ },
+ {
+ .name = "uclamp.latency_sensitive",
+ .flags = CFTYPE_NOT_ON_ROOT,
+ .read_u64 = cpu_uclamp_ls_read_u64,
+ .write_u64 = cpu_uclamp_ls_write_u64,
+ },
+#endif
{ } /* terminate */
};
diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c
index 1b7ec82..a24502a 100644
--- a/kernel/sched/cpufreq_schedutil.c
+++ b/kernel/sched/cpufreq_schedutil.c
@@ -13,11 +13,13 @@
#include "sched.h"
+#include <linux/sched/cpufreq.h>
#include <trace/events/power.h>
struct sugov_tunables {
struct gov_attr_set attr_set;
- unsigned int rate_limit_us;
+ unsigned int up_rate_limit_us;
+ unsigned int down_rate_limit_us;
};
struct sugov_policy {
@@ -28,9 +30,12 @@ struct sugov_policy {
raw_spinlock_t update_lock; /* For shared policies */
u64 last_freq_update_time;
- s64 freq_update_delay_ns;
+ s64 min_rate_limit_ns;
+ s64 up_rate_delay_ns;
+ s64 down_rate_delay_ns;
unsigned int next_freq;
unsigned int cached_raw_freq;
+ unsigned int prev_cached_raw_freq;
/* The next fields are only needed if fast switch cannot be used: */
struct irq_work irq_work;
@@ -95,9 +100,32 @@ static bool sugov_should_update_freq(struct sugov_policy *sg_policy, u64 time)
return true;
}
+ /* No need to recalculate next freq for min_rate_limit_us
+ * at least. However we might still decide to further rate
+ * limit once frequency change direction is decided, according
+ * to the separate rate limits.
+ */
+
+ delta_ns = time - sg_policy->last_freq_update_time;
+ return delta_ns >= sg_policy->min_rate_limit_ns;
+}
+
+static bool sugov_up_down_rate_limit(struct sugov_policy *sg_policy, u64 time,
+ unsigned int next_freq)
+{
+ s64 delta_ns;
+
delta_ns = time - sg_policy->last_freq_update_time;
- return delta_ns >= sg_policy->freq_update_delay_ns;
+ if (next_freq > sg_policy->next_freq &&
+ delta_ns < sg_policy->up_rate_delay_ns)
+ return true;
+
+ if (next_freq < sg_policy->next_freq &&
+ delta_ns < sg_policy->down_rate_delay_ns)
+ return true;
+
+ return false;
}
static bool sugov_update_next_freq(struct sugov_policy *sg_policy, u64 time,
@@ -106,6 +134,12 @@ static bool sugov_update_next_freq(struct sugov_policy *sg_policy, u64 time,
if (sg_policy->next_freq == next_freq)
return false;
+ if (sugov_up_down_rate_limit(sg_policy, time, next_freq)) {
+ /* Restore cached freq as next_freq is not changed */
+ sg_policy->cached_raw_freq = sg_policy->prev_cached_raw_freq;
+ return false;
+ }
+
sg_policy->next_freq = next_freq;
sg_policy->last_freq_update_time = time;
@@ -174,16 +208,20 @@ static unsigned int get_next_freq(struct sugov_policy *sg_policy,
unsigned int freq = arch_scale_freq_invariant() ?
policy->cpuinfo.max_freq : policy->cur;
- freq = (freq + (freq >> 2)) * util / max;
+ freq = map_util_freq(util, freq, max);
if (freq == sg_policy->cached_raw_freq && !sg_policy->need_freq_update)
return sg_policy->next_freq;
sg_policy->need_freq_update = false;
+ sg_policy->prev_cached_raw_freq = sg_policy->cached_raw_freq;
sg_policy->cached_raw_freq = freq;
return cpufreq_driver_resolve_freq(policy, freq);
}
+extern long
+schedtune_cpu_margin_with(unsigned long util, int cpu, struct task_struct *p);
+
/*
* This function computes an effective utilization for the given CPU, to be
* used for frequency selection given the linear relation: f = u * f_max.
@@ -196,6 +234,9 @@ static unsigned int get_next_freq(struct sugov_policy *sg_policy,
* Where the cfs,rt and dl util numbers are tracked with the same metric and
* synchronized windows and are thus directly comparable.
*
+ * The @util parameter passed to this function is assumed to be the aggregation
+ * of RT and CFS util numbers. The cases of DL and IRQ are managed here.
+ *
* The cfs,rt,dl utilization are the running times measured with rq->clock_task
* which excludes things like IRQ and steal-time. These latter are then accrued
* in the irq utilization.
@@ -204,16 +245,17 @@ static unsigned int get_next_freq(struct sugov_policy *sg_policy,
* based on the task model parameters and gives the minimal utilization
* required to meet deadlines.
*/
-static unsigned long sugov_get_util(struct sugov_cpu *sg_cpu)
+unsigned long schedutil_cpu_util(int cpu, unsigned long util_cfs,
+ unsigned long max, enum schedutil_type type,
+ struct task_struct *p)
{
- struct rq *rq = cpu_rq(sg_cpu->cpu);
- unsigned long util, irq, max;
+ unsigned long dl_util, util, irq;
+ struct rq *rq = cpu_rq(cpu);
- sg_cpu->max = max = arch_scale_cpu_capacity(NULL, sg_cpu->cpu);
- sg_cpu->bw_dl = cpu_bw_dl(rq);
-
- if (rt_rq_is_runnable(&rq->rt))
+ if (sched_feat(SUGOV_RT_MAX_FREQ) && !IS_BUILTIN(CONFIG_UCLAMP_TASK) &&
+ type == FREQUENCY_UTIL && rt_rq_is_runnable(&rq->rt)) {
return max;
+ }
/*
* Early check to see if IRQ/steal time saturates the CPU, can be
@@ -229,23 +271,43 @@ static unsigned long sugov_get_util(struct sugov_cpu *sg_cpu)
* CFS tasks and we use the same metric to track the effective
* utilization (PELT windows are synchronized) we can directly add them
* to obtain the CPU's actual utilization.
+ *
+ * CFS and RT utilization can be boosted or capped, depending on
+ * utilization clamp constraints requested by currently RUNNABLE
+ * tasks.
+ * When there are no CFS RUNNABLE tasks, clamps are released and
+ * frequency will be gracefully reduced with the utilization decay.
*/
- util = cpu_util_cfs(rq);
- util += cpu_util_rt(rq);
+ util = util_cfs + cpu_util_rt(rq);
+ if (type == FREQUENCY_UTIL)
+#ifdef CONFIG_SCHED_TUNE
+ util += schedtune_cpu_margin_with(util, cpu, p);
+#else
+ util = uclamp_rq_util_with(rq, util, p);
+#endif
+
+ dl_util = cpu_util_dl(rq);
/*
- * We do not make cpu_util_dl() a permanent part of this sum because we
- * want to use cpu_bw_dl() later on, but we need to check if the
- * CFS+RT+DL sum is saturated (ie. no idle time) such that we select
- * f_max when there is no idle time.
+ * For frequency selection we do not make cpu_util_dl() a permanent part
+ * of this sum because we want to use cpu_bw_dl() later on, but we need
+ * to check if the CFS+RT+DL sum is saturated (ie. no idle time) such
+ * that we select f_max when there is no idle time.
*
* NOTE: numerical errors or stop class might cause us to not quite hit
* saturation when we should -- something for later.
*/
- if ((util + cpu_util_dl(rq)) >= max)
+ if (util + dl_util >= max)
return max;
/*
+ * OTOH, for energy computation we need the estimated running time, so
+ * include util_dl and ignore dl_bw.
+ */
+ if (type == ENERGY_UTIL)
+ util += dl_util;
+
+ /*
* There is still idle time; further improve the number by using the
* irq metric. Because IRQ/steal time is hidden from the task clock we
* need to scale the task numbers:
@@ -267,7 +329,23 @@ static unsigned long sugov_get_util(struct sugov_cpu *sg_cpu)
* bw_dl as requested freq. However, cpufreq is not yet ready for such
* an interface. So, we only do the latter for now.
*/
- return min(max, util + sg_cpu->bw_dl);
+ if (type == FREQUENCY_UTIL)
+ util += cpu_bw_dl(rq);
+
+ return min(max, util);
+}
+
+static unsigned long sugov_get_util(struct sugov_cpu *sg_cpu)
+{
+ struct rq *rq = cpu_rq(sg_cpu->cpu);
+ unsigned long util_cfs = cpu_util_cfs(rq);
+ unsigned long max = arch_scale_cpu_capacity(NULL, sg_cpu->cpu);
+
+ sg_cpu->max = max;
+ sg_cpu->bw_dl = cpu_bw_dl(rq);
+
+ return schedutil_cpu_util(sg_cpu->cpu, util_cfs, max,
+ FREQUENCY_UTIL, NULL);
}
/**
@@ -446,8 +524,8 @@ static void sugov_update_single(struct update_util_data *hook, u64 time,
if (busy && next_f < sg_policy->next_freq) {
next_f = sg_policy->next_freq;
- /* Reset cached freq as next_freq has changed */
- sg_policy->cached_raw_freq = 0;
+ /* Restore cached freq as next_freq has changed */
+ sg_policy->cached_raw_freq = sg_policy->prev_cached_raw_freq;
}
/*
@@ -559,15 +637,32 @@ static inline struct sugov_tunables *to_sugov_tunables(struct gov_attr_set *attr
return container_of(attr_set, struct sugov_tunables, attr_set);
}
-static ssize_t rate_limit_us_show(struct gov_attr_set *attr_set, char *buf)
+static DEFINE_MUTEX(min_rate_lock);
+
+static void update_min_rate_limit_ns(struct sugov_policy *sg_policy)
+{
+ mutex_lock(&min_rate_lock);
+ sg_policy->min_rate_limit_ns = min(sg_policy->up_rate_delay_ns,
+ sg_policy->down_rate_delay_ns);
+ mutex_unlock(&min_rate_lock);
+}
+
+static ssize_t up_rate_limit_us_show(struct gov_attr_set *attr_set, char *buf)
{
struct sugov_tunables *tunables = to_sugov_tunables(attr_set);
- return sprintf(buf, "%u\n", tunables->rate_limit_us);
+ return sprintf(buf, "%u\n", tunables->up_rate_limit_us);
}
-static ssize_t
-rate_limit_us_store(struct gov_attr_set *attr_set, const char *buf, size_t count)
+static ssize_t down_rate_limit_us_show(struct gov_attr_set *attr_set, char *buf)
+{
+ struct sugov_tunables *tunables = to_sugov_tunables(attr_set);
+
+ return sprintf(buf, "%u\n", tunables->down_rate_limit_us);
+}
+
+static ssize_t up_rate_limit_us_store(struct gov_attr_set *attr_set,
+ const char *buf, size_t count)
{
struct sugov_tunables *tunables = to_sugov_tunables(attr_set);
struct sugov_policy *sg_policy;
@@ -576,18 +671,42 @@ rate_limit_us_store(struct gov_attr_set *attr_set, const char *buf, size_t count
if (kstrtouint(buf, 10, &rate_limit_us))
return -EINVAL;
- tunables->rate_limit_us = rate_limit_us;
+ tunables->up_rate_limit_us = rate_limit_us;
- list_for_each_entry(sg_policy, &attr_set->policy_list, tunables_hook)
- sg_policy->freq_update_delay_ns = rate_limit_us * NSEC_PER_USEC;
+ list_for_each_entry(sg_policy, &attr_set->policy_list, tunables_hook) {
+ sg_policy->up_rate_delay_ns = rate_limit_us * NSEC_PER_USEC;
+ update_min_rate_limit_ns(sg_policy);
+ }
return count;
}
-static struct governor_attr rate_limit_us = __ATTR_RW(rate_limit_us);
+static ssize_t down_rate_limit_us_store(struct gov_attr_set *attr_set,
+ const char *buf, size_t count)
+{
+ struct sugov_tunables *tunables = to_sugov_tunables(attr_set);
+ struct sugov_policy *sg_policy;
+ unsigned int rate_limit_us;
+
+ if (kstrtouint(buf, 10, &rate_limit_us))
+ return -EINVAL;
+
+ tunables->down_rate_limit_us = rate_limit_us;
+
+ list_for_each_entry(sg_policy, &attr_set->policy_list, tunables_hook) {
+ sg_policy->down_rate_delay_ns = rate_limit_us * NSEC_PER_USEC;
+ update_min_rate_limit_ns(sg_policy);
+ }
+
+ return count;
+}
+
+static struct governor_attr up_rate_limit_us = __ATTR_RW(up_rate_limit_us);
+static struct governor_attr down_rate_limit_us = __ATTR_RW(down_rate_limit_us);
static struct attribute *sugov_attributes[] = {
- &rate_limit_us.attr,
+ &up_rate_limit_us.attr,
+ &down_rate_limit_us.attr,
NULL
};
@@ -598,7 +717,7 @@ static struct kobj_type sugov_tunables_ktype = {
/********************** cpufreq governor interface *********************/
-static struct cpufreq_governor schedutil_gov;
+struct cpufreq_governor schedutil_gov;
static struct sugov_policy *sugov_policy_alloc(struct cpufreq_policy *policy)
{
@@ -743,7 +862,8 @@ static int sugov_init(struct cpufreq_policy *policy)
goto stop_kthread;
}
- tunables->rate_limit_us = cpufreq_policy_transition_delay_us(policy);
+ tunables->up_rate_limit_us = cpufreq_policy_transition_delay_us(policy);
+ tunables->down_rate_limit_us = cpufreq_policy_transition_delay_us(policy);
policy->governor_data = sg_policy;
sg_policy->tunables = tunables;
@@ -802,13 +922,18 @@ static int sugov_start(struct cpufreq_policy *policy)
struct sugov_policy *sg_policy = policy->governor_data;
unsigned int cpu;
- sg_policy->freq_update_delay_ns = sg_policy->tunables->rate_limit_us * NSEC_PER_USEC;
+ sg_policy->up_rate_delay_ns =
+ sg_policy->tunables->up_rate_limit_us * NSEC_PER_USEC;
+ sg_policy->down_rate_delay_ns =
+ sg_policy->tunables->down_rate_limit_us * NSEC_PER_USEC;
+ update_min_rate_limit_ns(sg_policy);
sg_policy->last_freq_update_time = 0;
sg_policy->next_freq = 0;
sg_policy->work_in_progress = false;
sg_policy->limits_changed = false;
sg_policy->need_freq_update = false;
sg_policy->cached_raw_freq = 0;
+ sg_policy->prev_cached_raw_freq = 0;
for_each_cpu(cpu, policy->cpus) {
struct sugov_cpu *sg_cpu = &per_cpu(sugov_cpu, cpu);
@@ -861,7 +986,7 @@ static void sugov_limits(struct cpufreq_policy *policy)
sg_policy->limits_changed = true;
}
-static struct cpufreq_governor schedutil_gov = {
+struct cpufreq_governor schedutil_gov = {
.name = "schedutil",
.owner = THIS_MODULE,
.dynamic_switching = true,
@@ -884,3 +1009,36 @@ static int __init sugov_register(void)
return cpufreq_register_governor(&schedutil_gov);
}
fs_initcall(sugov_register);
+
+#ifdef CONFIG_ENERGY_MODEL
+extern bool sched_energy_update;
+extern struct mutex sched_energy_mutex;
+
+static void rebuild_sd_workfn(struct work_struct *work)
+{
+ mutex_lock(&sched_energy_mutex);
+ sched_energy_update = true;
+ rebuild_sched_domains();
+ sched_energy_update = false;
+ mutex_unlock(&sched_energy_mutex);
+}
+static DECLARE_WORK(rebuild_sd_work, rebuild_sd_workfn);
+
+/*
+ * EAS shouldn't be attempted without sugov, so rebuild the sched_domains
+ * on governor changes to make sure the scheduler knows about it.
+ */
+void sched_cpufreq_governor_change(struct cpufreq_policy *policy,
+ struct cpufreq_governor *old_gov)
+{
+ if (old_gov == &schedutil_gov || policy->governor == &schedutil_gov) {
+ /*
+ * When called from the cpufreq_register_driver() path, the
+ * cpu_hotplug_lock is already held, so use a work item to
+ * avoid nested locking in rebuild_sched_domains().
+ */
+ schedule_work(&rebuild_sd_work);
+ }
+
+}
+#endif
diff --git a/kernel/sched/cpupri.c b/kernel/sched/cpupri.c
index daaadf9..685ee13 100644
--- a/kernel/sched/cpupri.c
+++ b/kernel/sched/cpupri.c
@@ -45,11 +45,72 @@ static int convert_prio(int prio)
return cpupri;
}
+static inline int __cpupri_find(struct cpupri *cp, struct task_struct *p,
+ struct cpumask *lowest_mask, int idx)
+{
+ struct cpupri_vec *vec = &cp->pri_to_cpu[idx];
+ int skip = 0;
+
+ if (!atomic_read(&(vec)->count))
+ skip = 1;
+ /*
+ * When looking at the vector, we need to read the counter,
+ * do a memory barrier, then read the mask.
+ *
+ * Note: This is still all racey, but we can deal with it.
+ * Ideally, we only want to look at masks that are set.
+ *
+ * If a mask is not set, then the only thing wrong is that we
+ * did a little more work than necessary.
+ *
+ * If we read a zero count but the mask is set, because of the
+ * memory barriers, that can only happen when the highest prio
+ * task for a run queue has left the run queue, in which case,
+ * it will be followed by a pull. If the task we are processing
+ * fails to find a proper place to go, that pull request will
+ * pull this task if the run queue is running at a lower
+ * priority.
+ */
+ smp_rmb();
+
+ /* Need to do the rmb for every iteration */
+ if (skip)
+ return 0;
+
+ if (cpumask_any_and(&p->cpus_allowed, vec->mask) >= nr_cpu_ids)
+ return 0;
+
+ if (lowest_mask) {
+ cpumask_and(lowest_mask, &p->cpus_allowed, vec->mask);
+
+ /*
+ * We have to ensure that we have at least one bit
+ * still set in the array, since the map could have
+ * been concurrently emptied between the first and
+ * second reads of vec->mask. If we hit this
+ * condition, simply act as though we never hit this
+ * priority level and continue on.
+ */
+ if (cpumask_empty(lowest_mask))
+ return 0;
+ }
+
+ return 1;
+}
+
+int cpupri_find(struct cpupri *cp, struct task_struct *p,
+ struct cpumask *lowest_mask)
+{
+ return cpupri_find_fitness(cp, p, lowest_mask, NULL);
+}
+
/**
- * cpupri_find - find the best (lowest-pri) CPU in the system
+ * cpupri_find_fitness - find the best (lowest-pri) CPU in the system
* @cp: The cpupri context
* @p: The task
* @lowest_mask: A mask to fill in with selected CPUs (or NULL)
+ * @fitness_fn: A pointer to a function to do custom checks whether the CPU
+ * fits a specific criteria so that we only return those CPUs.
*
* Note: This function returns the recommended CPUs as calculated during the
* current invocation. By the time the call returns, the CPUs may have in
@@ -60,65 +121,59 @@ static int convert_prio(int prio)
*
* Return: (int)bool - CPUs were found
*/
-int cpupri_find(struct cpupri *cp, struct task_struct *p,
- struct cpumask *lowest_mask)
+int cpupri_find_fitness(struct cpupri *cp, struct task_struct *p,
+ struct cpumask *lowest_mask,
+ bool (*fitness_fn)(struct task_struct *p, int cpu))
{
- int idx = 0;
int task_pri = convert_prio(p->prio);
+ int idx, cpu;
BUG_ON(task_pri >= CPUPRI_NR_PRIORITIES);
for (idx = 0; idx < task_pri; idx++) {
- struct cpupri_vec *vec = &cp->pri_to_cpu[idx];
- int skip = 0;
- if (!atomic_read(&(vec)->count))
- skip = 1;
- /*
- * When looking at the vector, we need to read the counter,
- * do a memory barrier, then read the mask.
- *
- * Note: This is still all racey, but we can deal with it.
- * Ideally, we only want to look at masks that are set.
- *
- * If a mask is not set, then the only thing wrong is that we
- * did a little more work than necessary.
- *
- * If we read a zero count but the mask is set, because of the
- * memory barriers, that can only happen when the highest prio
- * task for a run queue has left the run queue, in which case,
- * it will be followed by a pull. If the task we are processing
- * fails to find a proper place to go, that pull request will
- * pull this task if the run queue is running at a lower
- * priority.
- */
- smp_rmb();
-
- /* Need to do the rmb for every iteration */
- if (skip)
+ if (!__cpupri_find(cp, p, lowest_mask, idx))
continue;
- if (cpumask_any_and(&p->cpus_allowed, vec->mask) >= nr_cpu_ids)
- continue;
+ if (!lowest_mask || !fitness_fn)
+ return 1;
- if (lowest_mask) {
- cpumask_and(lowest_mask, &p->cpus_allowed, vec->mask);
-
- /*
- * We have to ensure that we have at least one bit
- * still set in the array, since the map could have
- * been concurrently emptied between the first and
- * second reads of vec->mask. If we hit this
- * condition, simply act as though we never hit this
- * priority level and continue on.
- */
- if (cpumask_any(lowest_mask) >= nr_cpu_ids)
- continue;
+ /* Ensure the capacity of the CPUs fit the task */
+ for_each_cpu(cpu, lowest_mask) {
+ if (!fitness_fn(p, cpu))
+ cpumask_clear_cpu(cpu, lowest_mask);
}
+ /*
+ * If no CPU at the current priority can fit the task
+ * continue looking
+ */
+ if (cpumask_empty(lowest_mask))
+ continue;
+
return 1;
}
+ /*
+ * If we failed to find a fitting lowest_mask, kick off a new search
+ * but without taking into account any fitness criteria this time.
+ *
+ * This rule favours honouring priority over fitting the task in the
+ * correct CPU (Capacity Awareness being the only user now).
+ * The idea is that if a higher priority task can run, then it should
+ * run even if this ends up being on unfitting CPU.
+ *
+ * The cost of this trade-off is not entirely clear and will probably
+ * be good for some workloads and bad for others.
+ *
+ * The main idea here is that if some CPUs were overcommitted, we try
+ * to spread which is what the scheduler traditionally did. Sys admins
+ * must do proper RT planning to avoid overloading the system if they
+ * really care.
+ */
+ if (fitness_fn)
+ return cpupri_find(cp, p, lowest_mask);
+
return 0;
}
diff --git a/kernel/sched/cpupri.h b/kernel/sched/cpupri.h
index 7dc20a3..efbb492 100644
--- a/kernel/sched/cpupri.h
+++ b/kernel/sched/cpupri.h
@@ -18,7 +18,11 @@ struct cpupri {
};
#ifdef CONFIG_SMP
-int cpupri_find(struct cpupri *cp, struct task_struct *p, struct cpumask *lowest_mask);
+int cpupri_find(struct cpupri *cp, struct task_struct *p,
+ struct cpumask *lowest_mask);
+int cpupri_find_fitness(struct cpupri *cp, struct task_struct *p,
+ struct cpumask *lowest_mask,
+ bool (*fitness_fn)(struct task_struct *p, int cpu));
void cpupri_set(struct cpupri *cp, int cpu, int pri);
int cpupri_init(struct cpupri *cp);
void cpupri_cleanup(struct cpupri *cp);
diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c
index 54eb945..2d1b04f 100644
--- a/kernel/sched/cputime.c
+++ b/kernel/sched/cputime.c
@@ -1,6 +1,7 @@
/*
* Simple CPU accounting cgroup controller
*/
+#include <linux/cpufreq_times.h>
#include "sched.h"
#ifdef CONFIG_IRQ_TIME_ACCOUNTING
@@ -128,6 +129,9 @@ void account_user_time(struct task_struct *p, u64 cputime)
/* Account for user time used */
acct_account_cputime(p);
+
+ /* Account power usage for user time */
+ cpufreq_acct_update_power(p, cputime);
}
/*
@@ -172,6 +176,9 @@ void account_system_index_time(struct task_struct *p,
/* Account for system time used */
acct_account_cputime(p);
+
+ /* Account power usage for system time */
+ cpufreq_acct_update_power(p, cputime);
}
/*
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index beec508..2960c5f 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -1599,7 +1599,8 @@ static void yield_task_dl(struct rq *rq)
static int find_later_rq(struct task_struct *task);
static int
-select_task_rq_dl(struct task_struct *p, int cpu, int sd_flag, int flags)
+select_task_rq_dl(struct task_struct *p, int cpu, int sd_flag, int flags,
+ int sibling_count_hint)
{
struct task_struct *curr;
struct rq *rq;
@@ -1794,7 +1795,7 @@ pick_next_task_dl(struct rq *rq, struct task_struct *prev, struct rq_flags *rf)
deadline_queue_push_tasks(rq);
if (rq->curr->sched_class != &dl_sched_class)
- update_dl_rq_load_avg(rq_clock_task(rq), rq, 0);
+ update_dl_rq_load_avg(rq_clock_pelt(rq), rq, 0);
return p;
}
@@ -1803,7 +1804,7 @@ static void put_prev_task_dl(struct rq *rq, struct task_struct *p)
{
update_curr_dl(rq);
- update_dl_rq_load_avg(rq_clock_task(rq), rq, 1);
+ update_dl_rq_load_avg(rq_clock_pelt(rq), rq, 1);
if (on_dl_rq(&p->dl) && p->nr_cpus_allowed > 1)
enqueue_pushable_dl_task(rq, p);
}
@@ -1820,7 +1821,7 @@ static void task_tick_dl(struct rq *rq, struct task_struct *p, int queued)
{
update_curr_dl(rq);
- update_dl_rq_load_avg(rq_clock_task(rq), rq, 1);
+ update_dl_rq_load_avg(rq_clock_pelt(rq), rq, 1);
/*
* Even when we have runtime, update_curr_dl() might have resulted in us
* not being the leftmost task anymore. In that case NEED_RESCHED will
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 84e7efd..4dea1f8 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -41,6 +41,16 @@ unsigned int sysctl_sched_latency = 6000000ULL;
unsigned int normalized_sysctl_sched_latency = 6000000ULL;
/*
+ * Enable/disable honoring sync flag in energy-aware wakeups.
+ */
+unsigned int sysctl_sched_sync_hint_enable = 1;
+
+/*
+ * Enable/disable using cstate knowledge in idle sibling selection
+ */
+unsigned int sysctl_sched_cstate_aware = 1;
+
+/*
* The initial- and re-scaling of tunables is configurable
*
* Options are:
@@ -248,13 +258,6 @@ const struct sched_class fair_sched_class;
*/
#ifdef CONFIG_FAIR_GROUP_SCHED
-
-/* cpu runqueue to which this cfs_rq is attached */
-static inline struct rq *rq_of(struct cfs_rq *cfs_rq)
-{
- return cfs_rq->rq;
-}
-
static inline struct task_struct *task_of(struct sched_entity *se)
{
SCHED_WARN_ON(!entity_is_task(se));
@@ -434,12 +437,6 @@ static inline struct task_struct *task_of(struct sched_entity *se)
return container_of(se, struct task_struct, se);
}
-static inline struct rq *rq_of(struct cfs_rq *cfs_rq)
-{
- return container_of(cfs_rq, struct rq, cfs);
-}
-
-
#define for_each_sched_entity(se) \
for (; se; se = NULL)
@@ -715,12 +712,12 @@ static u64 sched_vslice(struct cfs_rq *cfs_rq, struct sched_entity *se)
return calc_delta_fair(sched_slice(cfs_rq, se), se);
}
-#ifdef CONFIG_SMP
#include "pelt.h"
-#include "sched-pelt.h"
+#ifdef CONFIG_SMP
static int select_idle_sibling(struct task_struct *p, int prev_cpu, int cpu);
static unsigned long task_h_load(struct task_struct *p);
+static unsigned long capacity_of(int cpu);
/* Give new sched_entity start runnable values to heavy its load in infant time */
void init_entity_runnable_average(struct sched_entity *se)
@@ -804,7 +801,7 @@ void post_init_entity_util_avg(struct sched_entity *se)
* such that the next switched_to_fair() has the
* expected state.
*/
- se->avg.last_update_time = cfs_rq_clock_task(cfs_rq);
+ se->avg.last_update_time = cfs_rq_clock_pelt(cfs_rq);
return;
}
}
@@ -969,6 +966,7 @@ update_stats_enqueue_sleeper(struct cfs_rq *cfs_rq, struct sched_entity *se)
}
trace_sched_stat_blocked(tsk, delta);
+ trace_sched_blocked_reason(tsk);
/*
* Blocking time is in units of nanosecs, so shift by
@@ -1515,7 +1513,6 @@ bool should_numa_migrate_memory(struct task_struct *p, struct page * page,
static unsigned long weighted_cpuload(struct rq *rq);
static unsigned long source_load(int cpu, int type);
static unsigned long target_load(int cpu, int type);
-static unsigned long capacity_of(int cpu);
/* Cached statistics for all CPUs within a node */
struct numa_stats {
@@ -3172,6 +3169,8 @@ static inline void update_tg_load_avg(struct cfs_rq *cfs_rq, int force)
if (force || abs(delta) > cfs_rq->tg_load_avg_contrib / 64) {
atomic_long_add(delta, &cfs_rq->tg->load_avg);
cfs_rq->tg_load_avg_contrib = cfs_rq->avg.load_avg;
+
+ trace_sched_load_tg(cfs_rq);
}
}
@@ -3220,7 +3219,7 @@ void set_task_rq_fair(struct sched_entity *se,
p_last_update_time = prev->avg.last_update_time;
n_last_update_time = next->avg.last_update_time;
#endif
- __update_load_avg_blocked_se(p_last_update_time, cpu_of(rq_of(prev)), se);
+ __update_load_avg_blocked_se(p_last_update_time, se);
se->avg.last_update_time = n_last_update_time;
}
@@ -3355,11 +3354,11 @@ update_tg_cfs_runnable(struct cfs_rq *cfs_rq, struct sched_entity *se, struct cf
/*
* runnable_sum can't be lower than running_sum
- * As running sum is scale with CPU capacity wehreas the runnable sum
- * is not we rescale running_sum 1st
+ * Rescale running sum to be in the same range as runnable sum
+ * running_sum is in [0 : LOAD_AVG_MAX << SCHED_CAPACITY_SHIFT]
+ * runnable_sum is in [0 : LOAD_AVG_MAX]
*/
- running_sum = se->avg.util_sum /
- arch_scale_cpu_capacity(NULL, cpu_of(rq_of(cfs_rq)));
+ running_sum = se->avg.util_sum >> SCHED_CAPACITY_SHIFT;
runnable_sum = max(runnable_sum, running_sum);
load_sum = (s64)se_weight(se) * runnable_sum;
@@ -3414,6 +3413,9 @@ static inline int propagate_entity_load_avg(struct sched_entity *se)
update_tg_cfs_util(cfs_rq, se, gcfs_rq);
update_tg_cfs_runnable(cfs_rq, se, gcfs_rq);
+ trace_sched_load_cfs_rq(cfs_rq);
+ trace_sched_load_se(se);
+
return 1;
}
@@ -3462,7 +3464,7 @@ static inline void add_tg_cfs_propagate(struct cfs_rq *cfs_rq, long runnable_sum
/**
* update_cfs_rq_load_avg - update the cfs_rq's load/util averages
- * @now: current time, as per cfs_rq_clock_task()
+ * @now: current time, as per cfs_rq_clock_pelt()
* @cfs_rq: cfs_rq to update
*
* The cfs_rq avg is the direct sum of all its entities (blocked and runnable)
@@ -3507,7 +3509,7 @@ update_cfs_rq_load_avg(u64 now, struct cfs_rq *cfs_rq)
decayed = 1;
}
- decayed |= __update_load_avg_cfs_rq(now, cpu_of(rq_of(cfs_rq)), cfs_rq);
+ decayed |= __update_load_avg_cfs_rq(now, cfs_rq);
#ifndef CONFIG_64BIT
smp_wmb();
@@ -3566,6 +3568,8 @@ static void attach_entity_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *s
add_tg_cfs_propagate(cfs_rq, se->avg.load_sum);
cfs_rq_util_change(cfs_rq, flags);
+
+ trace_sched_load_cfs_rq(cfs_rq);
}
/**
@@ -3585,6 +3589,8 @@ static void detach_entity_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *s
add_tg_cfs_propagate(cfs_rq, -se->avg.load_sum);
cfs_rq_util_change(cfs_rq, 0);
+
+ trace_sched_load_cfs_rq(cfs_rq);
}
/*
@@ -3597,9 +3603,7 @@ static void detach_entity_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *s
/* Update task and its cfs_rq load average */
static inline void update_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se, int flags)
{
- u64 now = cfs_rq_clock_task(cfs_rq);
- struct rq *rq = rq_of(cfs_rq);
- int cpu = cpu_of(rq);
+ u64 now = cfs_rq_clock_pelt(cfs_rq);
int decayed;
/*
@@ -3607,7 +3611,7 @@ static inline void update_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *s
* track group sched_entity load average for task_h_load calc in migration
*/
if (se->avg.last_update_time && !(flags & SKIP_AGE_LOAD))
- __update_load_avg_se(now, cpu, cfs_rq, se);
+ __update_load_avg_se(now, cfs_rq, se);
decayed = update_cfs_rq_load_avg(now, cfs_rq);
decayed |= propagate_entity_load_avg(se);
@@ -3659,7 +3663,7 @@ void sync_entity_load_avg(struct sched_entity *se)
u64 last_update_time;
last_update_time = cfs_rq_last_update_time(cfs_rq);
- __update_load_avg_blocked_se(last_update_time, cpu_of(rq_of(cfs_rq)), se);
+ __update_load_avg_blocked_se(last_update_time, se);
}
/*
@@ -3715,11 +3719,25 @@ static inline unsigned long _task_util_est(struct task_struct *p)
return max(ue.ewma, ue.enqueued);
}
-static inline unsigned long task_util_est(struct task_struct *p)
+unsigned long task_util_est(struct task_struct *p)
{
return max(task_util(p), _task_util_est(p));
}
+#ifdef CONFIG_UCLAMP_TASK
+static inline unsigned long uclamp_task_util(struct task_struct *p)
+{
+ return clamp(task_util_est(p),
+ uclamp_eff_value(p, UCLAMP_MIN),
+ uclamp_eff_value(p, UCLAMP_MAX));
+}
+#else
+static inline unsigned long uclamp_task_util(struct task_struct *p)
+{
+ return task_util_est(p);
+}
+#endif
+
static inline void util_est_enqueue(struct cfs_rq *cfs_rq,
struct task_struct *p)
{
@@ -3732,6 +3750,10 @@ static inline void util_est_enqueue(struct cfs_rq *cfs_rq,
enqueued = cfs_rq->avg.util_est.enqueued;
enqueued += (_task_util_est(p) | UTIL_AVG_UNCHANGED);
WRITE_ONCE(cfs_rq->avg.util_est.enqueued, enqueued);
+
+ /* Update plots for Task and CPU estimated utilization */
+ trace_sched_util_est_task(p, &p->se.avg);
+ trace_sched_util_est_cpu(cpu_of(rq_of(cfs_rq)), cfs_rq);
}
/*
@@ -3752,6 +3774,7 @@ util_est_dequeue(struct cfs_rq *cfs_rq, struct task_struct *p, bool task_sleep)
{
long last_ewma_diff;
struct util_est ue;
+ int cpu;
if (!sched_feat(UTIL_EST))
return;
@@ -3762,6 +3785,9 @@ util_est_dequeue(struct cfs_rq *cfs_rq, struct task_struct *p, bool task_sleep)
(_task_util_est(p) | UTIL_AVG_UNCHANGED));
WRITE_ONCE(cfs_rq->avg.util_est.enqueued, ue.enqueued);
+ /* Update plots for CPU's estimated utilization */
+ trace_sched_util_est_cpu(cpu_of(rq_of(cfs_rq)), cfs_rq);
+
/*
* Skip update of task's estimated utilization when the task has not
* yet completed an activation, e.g. being migrated.
@@ -3778,15 +3804,34 @@ util_est_dequeue(struct cfs_rq *cfs_rq, struct task_struct *p, bool task_sleep)
return;
/*
+ * Reset EWMA on utilization increases, the moving average is used only
+ * to smooth utilization decreases.
+ */
+ ue.enqueued = (task_util(p) | UTIL_AVG_UNCHANGED);
+ if (sched_feat(UTIL_EST_FASTUP)) {
+ if (ue.ewma < ue.enqueued) {
+ ue.ewma = ue.enqueued;
+ goto done;
+ }
+ }
+
+ /*
* Skip update of task's estimated utilization when its EWMA is
* already ~1% close to its last activation value.
*/
- ue.enqueued = (task_util(p) | UTIL_AVG_UNCHANGED);
last_ewma_diff = ue.enqueued - ue.ewma;
if (within_margin(last_ewma_diff, (SCHED_CAPACITY_SCALE / 100)))
return;
/*
+ * To avoid overestimation of actual task utilization, skip updates if
+ * we cannot grant there is idle time in this CPU.
+ */
+ cpu = cpu_of(rq_of(cfs_rq));
+ if (task_util(p) > capacity_orig_of(cpu))
+ return;
+
+ /*
* Update Task's estimated utilization
*
* When *p completes an activation we can consolidate another sample
@@ -3806,7 +3851,34 @@ util_est_dequeue(struct cfs_rq *cfs_rq, struct task_struct *p, bool task_sleep)
ue.ewma <<= UTIL_EST_WEIGHT_SHIFT;
ue.ewma += last_ewma_diff;
ue.ewma >>= UTIL_EST_WEIGHT_SHIFT;
+done:
WRITE_ONCE(p->se.avg.util_est, ue);
+
+ /* Update plots for Task's estimated utilization */
+ trace_sched_util_est_task(p, &p->se.avg);
+}
+
+static inline int task_fits_capacity(struct task_struct *p, long capacity)
+{
+ return capacity * 1024 > uclamp_task_util(p) * capacity_margin;
+}
+
+static inline void update_misfit_status(struct task_struct *p, struct rq *rq)
+{
+ if (!static_branch_unlikely(&sched_asym_cpucapacity))
+ return;
+
+ if (!p) {
+ rq->misfit_task_load = 0;
+ return;
+ }
+
+ if (task_fits_capacity(p, capacity_of(cpu_of(rq)))) {
+ rq->misfit_task_load = 0;
+ return;
+ }
+
+ rq->misfit_task_load = task_h_load(p);
}
#else /* CONFIG_SMP */
@@ -3838,6 +3910,7 @@ util_est_enqueue(struct cfs_rq *cfs_rq, struct task_struct *p) {}
static inline void
util_est_dequeue(struct cfs_rq *cfs_rq, struct task_struct *p,
bool task_sleep) {}
+static inline void update_misfit_status(struct task_struct *p, struct rq *rq) {}
#endif /* CONFIG_SMP */
@@ -5143,6 +5216,26 @@ static inline void hrtick_update(struct rq *rq)
}
#endif
+#ifdef CONFIG_SMP
+static inline unsigned long cpu_util(int cpu);
+static unsigned long capacity_of(int cpu);
+
+static inline bool cpu_overutilized(int cpu)
+{
+ return (capacity_of(cpu) * 1024) < (cpu_util(cpu) * capacity_margin);
+}
+
+static inline void update_overutilized_status(struct rq *rq)
+{
+ if (!READ_ONCE(rq->rd->overutilized) && cpu_overutilized(rq->cpu)) {
+ WRITE_ONCE(rq->rd->overutilized, SG_OVERUTILIZED);
+ trace_sched_overutilized(1);
+ }
+}
+#else
+static inline void update_overutilized_status(struct rq *rq) { }
+#endif
+
/*
* The enqueue_task method is called before nr_running is
* increased. Here we update the fair scheduling stats and
@@ -5153,6 +5246,7 @@ enqueue_task_fair(struct rq *rq, struct task_struct *p, int flags)
{
struct cfs_rq *cfs_rq;
struct sched_entity *se = &p->se;
+ int task_new = !(flags & ENQUEUE_WAKEUP);
/*
* The code below (indirectly) updates schedutil which looks at
@@ -5163,6 +5257,24 @@ enqueue_task_fair(struct rq *rq, struct task_struct *p, int flags)
util_est_enqueue(&rq->cfs, p);
/*
+ * The code below (indirectly) updates schedutil which looks at
+ * the cfs_rq utilization to select a frequency.
+ * Let's update schedtune here to ensure the boost value of the
+ * current task is accounted for in the selection of the OPP.
+ *
+ * We do it also in the case where we enqueue a throttled task;
+ * we could argue that a throttled task should not boost a CPU,
+ * however:
+ * a) properly implementing CPU boosting considering throttled
+ * tasks will increase a lot the complexity of the solution
+ * b) it's not easy to quantify the benefits introduced by
+ * such a more complex solution.
+ * Thus, for the time being we go for the simple solution and boost
+ * also for throttled RQs.
+ */
+ schedtune_enqueue_task(p, cpu_of(rq));
+
+ /*
* If in_iowait is set, the code below may not trigger any cpufreq
* utilization updates, so do it here explicitly with the IOWAIT flag
* passed.
@@ -5200,8 +5312,26 @@ enqueue_task_fair(struct rq *rq, struct task_struct *p, int flags)
update_cfs_group(se);
}
- if (!se)
+ if (!se) {
add_nr_running(rq, 1);
+ /*
+ * Since new tasks are assigned an initial util_avg equal to
+ * half of the spare capacity of their CPU, tiny tasks have the
+ * ability to cross the overutilized threshold, which will
+ * result in the load balancer ruining all the task placement
+ * done by EAS. As a way to mitigate that effect, do not account
+ * for the first enqueue operation of new tasks during the
+ * overutilized flag detection.
+ *
+ * A better way of solving this problem would be to wait for
+ * the PELT signals of tasks to converge before taking them
+ * into account, but that is not straightforward to implement,
+ * and the following generally works well enough in practice.
+ */
+ if (!task_new)
+ update_overutilized_status(rq);
+
+ }
if (cfs_bandwidth_used()) {
/*
@@ -5236,6 +5366,14 @@ static void dequeue_task_fair(struct rq *rq, struct task_struct *p, int flags)
struct sched_entity *se = &p->se;
int task_sleep = flags & DEQUEUE_SLEEP;
+ /*
+ * The code below (indirectly) updates schedutil which looks at
+ * the cfs_rq utilization to select a frequency.
+ * Let's update schedtune here to ensure the boost value of the
+ * current task is not more accounted for in the selection of the OPP.
+ */
+ schedtune_dequeue_task(p, cpu_of(rq));
+
for_each_sched_entity(se) {
cfs_rq = cfs_rq_of(se);
dequeue_entity(cfs_rq, se, flags);
@@ -5599,11 +5737,6 @@ static unsigned long capacity_of(int cpu)
return cpu_rq(cpu)->cpu_capacity;
}
-static unsigned long capacity_orig_of(int cpu)
-{
- return cpu_rq(cpu)->cpu_capacity_orig;
-}
-
static unsigned long cpu_avg_load_per_task(int cpu)
{
struct rq *rq = cpu_rq(cpu);
@@ -5650,15 +5783,18 @@ static void record_wakee(struct task_struct *p)
* whatever is irrelevant, spread criteria is apparent partner count exceeds
* socket size.
*/
-static int wake_wide(struct task_struct *p)
+static int wake_wide(struct task_struct *p, int sibling_count_hint)
{
unsigned int master = current->wakee_flips;
unsigned int slave = p->wakee_flips;
- int factor = this_cpu_read(sd_llc_size);
+ int llc_size = this_cpu_read(sd_llc_size);
+
+ if (sibling_count_hint >= llc_size)
+ return 1;
if (master < slave)
swap(master, slave);
- if (slave < factor || master < slave * factor)
+ if (slave < llc_size || master < slave * llc_size)
return 0;
return 1;
}
@@ -5762,6 +5898,76 @@ static int wake_affine(struct sched_domain *sd, struct task_struct *p,
return target;
}
+#ifdef CONFIG_SCHED_TUNE
+struct reciprocal_value schedtune_spc_rdiv;
+
+static long
+schedtune_margin(unsigned long signal, long boost)
+{
+ long long margin = 0;
+
+ /*
+ * Signal proportional compensation (SPC)
+ *
+ * The Boost (B) value is used to compute a Margin (M) which is
+ * proportional to the complement of the original Signal (S):
+ * M = B * (SCHED_CAPACITY_SCALE - S)
+ * The obtained M could be used by the caller to "boost" S.
+ */
+ if (boost >= 0) {
+ margin = SCHED_CAPACITY_SCALE - signal;
+ margin *= boost;
+ } else
+ margin = -signal * boost;
+
+ margin = reciprocal_divide(margin, schedtune_spc_rdiv);
+
+ if (boost < 0)
+ margin *= -1;
+ return margin;
+}
+
+inline long
+schedtune_cpu_margin_with(unsigned long util, int cpu, struct task_struct *p)
+{
+ int boost = schedtune_cpu_boost_with(cpu, p);
+ long margin;
+
+ if (boost == 0)
+ margin = 0;
+ else
+ margin = schedtune_margin(util, boost);
+
+ trace_sched_boost_cpu(cpu, util, margin);
+
+ return margin;
+}
+
+long schedtune_task_margin(struct task_struct *task)
+{
+ int boost = schedtune_task_boost(task);
+ unsigned long util;
+ long margin;
+
+ if (boost == 0)
+ return 0;
+
+ util = task_util_est(task);
+ margin = schedtune_margin(util, boost);
+
+ return margin;
+}
+
+#else /* CONFIG_SCHED_TUNE */
+
+inline long
+schedtune_cpu_margin_with(unsigned long util, int cpu, struct task_struct *p)
+{
+ return 0;
+}
+
+#endif /* CONFIG_SCHED_TUNE */
+
static unsigned long cpu_util_without(int cpu, struct task_struct *p);
static unsigned long capacity_spare_without(int cpu, struct task_struct *p)
@@ -6396,6 +6602,323 @@ static unsigned long cpu_util_without(int cpu, struct task_struct *p)
}
/*
+ * Returns the current capacity of cpu after applying both
+ * cpu and freq scaling.
+ */
+unsigned long capacity_curr_of(int cpu)
+{
+ unsigned long max_cap = cpu_rq(cpu)->cpu_capacity_orig;
+ unsigned long scale_freq = arch_scale_freq_capacity(cpu);
+
+ return cap_scale(max_cap, scale_freq);
+}
+
+static void find_best_target(struct sched_domain *sd, cpumask_t *cpus,
+ struct task_struct *p)
+{
+ unsigned long min_util = uclamp_task(p);
+ unsigned long target_capacity = ULONG_MAX;
+ unsigned long min_wake_util = ULONG_MAX;
+ unsigned long target_max_spare_cap = 0;
+ unsigned long target_util = ULONG_MAX;
+ /* Initialise with deepest possible cstate (INT_MAX) */
+ int shallowest_idle_cstate = INT_MAX;
+ struct sched_group *sg;
+ int best_active_cpu = -1;
+ int best_idle_cpu = -1;
+ int target_cpu = -1;
+ int backup_cpu = -1;
+ bool prefer_idle;
+ bool boosted;
+ int i;
+
+ /*
+ * In most cases, target_capacity tracks capacity_orig of the most
+ * energy efficient CPU candidate, thus requiring to minimise
+ * target_capacity. For these cases target_capacity is already
+ * initialized to ULONG_MAX.
+ * However, for prefer_idle and boosted tasks we look for a high
+ * performance CPU, thus requiring to maximise target_capacity. In this
+ * case we initialise target_capacity to 0.
+ */
+ prefer_idle = uclamp_latency_sensitive(p);
+ boosted = uclamp_boosted(p);
+ if (prefer_idle && boosted)
+ target_capacity = 0;
+
+ /* Scan CPUs in all SDs */
+ sg = sd->groups;
+ do {
+ for_each_cpu_and(i, &p->cpus_allowed, sched_group_span(sg)) {
+ unsigned long capacity_curr = capacity_curr_of(i);
+ unsigned long capacity_orig = capacity_orig_of(i);
+ unsigned long wake_util, new_util;
+ long spare_cap;
+ int idle_idx = INT_MAX;
+
+ if (!cpu_online(i))
+ continue;
+
+ /*
+ * p's blocked utilization is still accounted for on prev_cpu
+ * so prev_cpu will receive a negative bias due to the double
+ * accounting. However, the blocked utilization may be zero.
+ */
+ wake_util = cpu_util_without(i, p);
+ new_util = wake_util + task_util_est(p);
+
+ /*
+ * Ensure minimum capacity to grant the required boost.
+ * The target CPU can be already at a capacity level higher
+ * than the one required to boost the task.
+ */
+ new_util = max(min_util, new_util);
+ if (new_util > capacity_orig)
+ continue;
+
+ /*
+ * Pre-compute the maximum possible capacity we expect
+ * to have available on this CPU once the task is
+ * enqueued here.
+ */
+ spare_cap = capacity_orig - new_util;
+
+ if (idle_cpu(i))
+ idle_idx = idle_get_state_idx(cpu_rq(i));
+
+
+ /*
+ * Case A) Latency sensitive tasks
+ *
+ * Unconditionally favoring tasks that prefer idle CPU to
+ * improve latency.
+ *
+ * Looking for:
+ * - an idle CPU, whatever its idle_state is, since
+ * the first CPUs we explore are more likely to be
+ * reserved for latency sensitive tasks.
+ * - a non idle CPU where the task fits in its current
+ * capacity and has the maximum spare capacity.
+ * - a non idle CPU with lower contention from other
+ * tasks and running at the lowest possible OPP.
+ *
+ * The last two goals tries to favor a non idle CPU
+ * where the task can run as if it is "almost alone".
+ * A maximum spare capacity CPU is favoured since
+ * the task already fits into that CPU's capacity
+ * without waiting for an OPP chance.
+ *
+ * The following code path is the only one in the CPUs
+ * exploration loop which is always used by
+ * prefer_idle tasks. It exits the loop with wither a
+ * best_active_cpu or a target_cpu which should
+ * represent an optimal choice for latency sensitive
+ * tasks.
+ */
+ if (prefer_idle) {
+
+ /*
+ * Case A.1: IDLE CPU
+ * Return the best IDLE CPU we find:
+ * - for boosted tasks: the CPU with the highest
+ * performance (i.e. biggest capacity_orig)
+ * - for !boosted tasks: the most energy
+ * efficient CPU (i.e. smallest capacity_orig)
+ */
+ if (idle_cpu(i)) {
+ if (boosted &&
+ capacity_orig < target_capacity)
+ continue;
+ if (!boosted &&
+ capacity_orig > target_capacity)
+ continue;
+ /*
+ * Minimise value of idle state: skip
+ * deeper idle states and pick the
+ * shallowest.
+ */
+ if (capacity_orig == target_capacity &&
+ sysctl_sched_cstate_aware &&
+ idle_idx >= shallowest_idle_cstate)
+ continue;
+
+ target_capacity = capacity_orig;
+ shallowest_idle_cstate = idle_idx;
+ best_idle_cpu = i;
+ continue;
+ }
+ if (best_idle_cpu != -1)
+ continue;
+
+ /*
+ * Case A.2: Target ACTIVE CPU
+ * Favor CPUs with max spare capacity.
+ */
+ if (capacity_curr > new_util &&
+ spare_cap > target_max_spare_cap) {
+ target_max_spare_cap = spare_cap;
+ target_cpu = i;
+ continue;
+ }
+ if (target_cpu != -1)
+ continue;
+
+
+ /*
+ * Case A.3: Backup ACTIVE CPU
+ * Favor CPUs with:
+ * - lower utilization due to other tasks
+ * - lower utilization with the task in
+ */
+ if (wake_util > min_wake_util)
+ continue;
+ min_wake_util = wake_util;
+ best_active_cpu = i;
+ continue;
+ }
+
+ /*
+ * Enforce EAS mode
+ *
+ * For non latency sensitive tasks, skip CPUs that
+ * will be overutilized by moving the task there.
+ *
+ * The goal here is to remain in EAS mode as long as
+ * possible at least for !prefer_idle tasks.
+ */
+ if ((new_util * capacity_margin) >
+ (capacity_orig * SCHED_CAPACITY_SCALE))
+ continue;
+
+ /*
+ * Favor CPUs with smaller capacity for non latency
+ * sensitive tasks.
+ */
+ if (capacity_orig > target_capacity)
+ continue;
+
+ /*
+ * Case B) Non latency sensitive tasks on IDLE CPUs.
+ *
+ * Find an optimal backup IDLE CPU for non latency
+ * sensitive tasks.
+ *
+ * Looking for:
+ * - minimizing the capacity_orig,
+ * i.e. preferring LITTLE CPUs
+ * - favoring shallowest idle states
+ * i.e. avoid to wakeup deep-idle CPUs
+ *
+ * The following code path is used by non latency
+ * sensitive tasks if IDLE CPUs are available. If at
+ * least one of such CPUs are available it sets the
+ * best_idle_cpu to the most suitable idle CPU to be
+ * selected.
+ *
+ * If idle CPUs are available, favour these CPUs to
+ * improve performances by spreading tasks.
+ * Indeed, the energy_diff() computed by the caller
+ * will take care to ensure the minimization of energy
+ * consumptions without affecting performance.
+ */
+ if (idle_cpu(i)) {
+ /*
+ * Skip CPUs in deeper idle state, but only
+ * if they are also less energy efficient.
+ * IOW, prefer a deep IDLE LITTLE CPU vs a
+ * shallow idle big CPU.
+ */
+ if (capacity_orig == target_capacity &&
+ sysctl_sched_cstate_aware &&
+ idle_idx >= shallowest_idle_cstate)
+ continue;
+
+ target_capacity = capacity_orig;
+ shallowest_idle_cstate = idle_idx;
+ best_idle_cpu = i;
+ continue;
+ }
+
+ /*
+ * Case C) Non latency sensitive tasks on ACTIVE CPUs.
+ *
+ * Pack tasks in the most energy efficient capacities.
+ *
+ * This task packing strategy prefers more energy
+ * efficient CPUs (i.e. pack on smaller maximum
+ * capacity CPUs) while also trying to spread tasks to
+ * run them all at the lower OPP.
+ *
+ * This assumes for example that it's more energy
+ * efficient to run two tasks on two CPUs at a lower
+ * OPP than packing both on a single CPU but running
+ * that CPU at an higher OPP.
+ *
+ * Thus, this case keep track of the CPU with the
+ * smallest maximum capacity and highest spare maximum
+ * capacity.
+ */
+
+ /* Favor CPUs with maximum spare capacity */
+ if (capacity_orig == target_capacity &&
+ spare_cap < target_max_spare_cap)
+ continue;
+
+ target_max_spare_cap = spare_cap;
+ target_capacity = capacity_orig;
+ target_util = new_util;
+ target_cpu = i;
+ }
+
+ } while (sg = sg->next, sg != sd->groups);
+
+ /*
+ * For non latency sensitive tasks, cases B and C in the previous loop,
+ * we pick the best IDLE CPU only if we was not able to find a target
+ * ACTIVE CPU.
+ *
+ * Policies priorities:
+ *
+ * - prefer_idle tasks:
+ *
+ * a) IDLE CPU available: best_idle_cpu
+ * b) ACTIVE CPU where task fits and has the bigger maximum spare
+ * capacity (i.e. target_cpu)
+ * c) ACTIVE CPU with less contention due to other tasks
+ * (i.e. best_active_cpu)
+ *
+ * - NON prefer_idle tasks:
+ *
+ * a) ACTIVE CPU: target_cpu
+ * b) IDLE CPU: best_idle_cpu
+ */
+
+ if (prefer_idle && (best_idle_cpu != -1)) {
+ target_cpu = best_idle_cpu;
+ goto target;
+ }
+
+ if (target_cpu == -1)
+ target_cpu = prefer_idle
+ ? best_active_cpu
+ : best_idle_cpu;
+ else
+ backup_cpu = prefer_idle
+ ? best_active_cpu
+ : best_idle_cpu;
+
+ if (backup_cpu >= 0)
+ cpumask_set_cpu(backup_cpu, cpus);
+ if (target_cpu >= 0) {
+target:
+ cpumask_set_cpu(target_cpu, cpus);
+ }
+
+ trace_sched_find_best_target(p, prefer_idle, min_util, best_idle_cpu,
+ best_active_cpu, target_cpu, backup_cpu);
+}
+
+/*
* Disable WAKE_AFFINE in the case where task @p doesn't fit in the
* capacity of either the waking CPU @cpu or the previous CPU @prev_cpu.
*
@@ -6406,8 +6929,11 @@ static int wake_cap(struct task_struct *p, int cpu, int prev_cpu)
{
long min_cap, max_cap;
+ if (!static_branch_unlikely(&sched_asym_cpucapacity))
+ return 0;
+
min_cap = min(capacity_orig_of(prev_cpu), capacity_orig_of(cpu));
- max_cap = cpu_rq(cpu)->rd->max_cpu_capacity;
+ max_cap = cpu_rq(cpu)->rd->max_cpu_capacity.val;
/* Minimum capacity is close to max, no need to abort wake_affine */
if (max_cap - min_cap < max_cap >> 3)
@@ -6416,7 +6942,328 @@ static int wake_cap(struct task_struct *p, int cpu, int prev_cpu)
/* Bring task utilization in sync with prev_cpu */
sync_entity_load_avg(&p->se);
- return min_cap * 1024 < task_util(p) * capacity_margin;
+ return !task_fits_capacity(p, min_cap);
+}
+
+/*
+ * Predicts what cpu_util(@cpu) would return if @p was migrated (and enqueued)
+ * to @dst_cpu.
+ */
+static unsigned long cpu_util_next(int cpu, struct task_struct *p, int dst_cpu)
+{
+ struct cfs_rq *cfs_rq = &cpu_rq(cpu)->cfs;
+ unsigned long util_est, util = READ_ONCE(cfs_rq->avg.util_avg);
+
+ /*
+ * If @p migrates from @cpu to another, remove its contribution. Or,
+ * if @p migrates from another CPU to @cpu, add its contribution. In
+ * the other cases, @cpu is not impacted by the migration, so the
+ * util_avg should already be correct.
+ */
+ if (task_cpu(p) == cpu && dst_cpu != cpu)
+ sub_positive(&util, task_util(p));
+ else if (task_cpu(p) != cpu && dst_cpu == cpu)
+ util += task_util(p);
+
+ if (sched_feat(UTIL_EST)) {
+ util_est = READ_ONCE(cfs_rq->avg.util_est.enqueued);
+
+ /*
+ * During wake-up, the task isn't enqueued yet and doesn't
+ * appear in the cfs_rq->avg.util_est.enqueued of any rq,
+ * so just add it (if needed) to "simulate" what will be
+ * cpu_util() after the task has been enqueued.
+ */
+ if (dst_cpu == cpu)
+ util_est += _task_util_est(p);
+
+ util = max(util, util_est);
+ }
+
+ return min(util, capacity_orig_of(cpu));
+}
+
+/*
+ * compute_energy(): Estimates the energy that would be consumed if @p was
+ * migrated to @dst_cpu. compute_energy() predicts what will be the utilization
+ * landscape of the * CPUs after the task migration, and uses the Energy Model
+ * to compute what would be the energy if we decided to actually migrate that
+ * task.
+ */
+static long
+compute_energy(struct task_struct *p, int dst_cpu, struct perf_domain *pd)
+{
+ unsigned int max_util, util_cfs, cpu_util, cpu_cap;
+ unsigned long sum_util, energy = 0;
+ struct task_struct *tsk;
+ int cpu;
+
+ for (; pd; pd = pd->next) {
+ struct cpumask *pd_mask = perf_domain_span(pd);
+
+ /*
+ * The energy model mandates all the CPUs of a performance
+ * domain have the same capacity.
+ */
+ cpu_cap = arch_scale_cpu_capacity(NULL, cpumask_first(pd_mask));
+ max_util = sum_util = 0;
+
+ /*
+ * The capacity state of CPUs of the current rd can be driven by
+ * CPUs of another rd if they belong to the same performance
+ * domain. So, account for the utilization of these CPUs too
+ * by masking pd with cpu_online_mask instead of the rd span.
+ *
+ * If an entire performance domain is outside of the current rd,
+ * it will not appear in its pd list and will not be accounted
+ * by compute_energy().
+ */
+ for_each_cpu_and(cpu, pd_mask, cpu_online_mask) {
+ util_cfs = cpu_util_next(cpu, p, dst_cpu);
+
+ /*
+ * Busy time computation: utilization clamping is not
+ * required since the ratio (sum_util / cpu_capacity)
+ * is already enough to scale the EM reported power
+ * consumption at the (eventually clamped) cpu_capacity.
+ */
+ sum_util += schedutil_cpu_util(cpu, util_cfs, cpu_cap,
+ ENERGY_UTIL, NULL);
+
+ /*
+ * Performance domain frequency: utilization clamping
+ * must be considered since it affects the selection
+ * of the performance domain frequency.
+ * NOTE: in case RT tasks are running, by default the
+ * FREQUENCY_UTIL's utilization can be max OPP.
+ */
+ tsk = cpu == dst_cpu ? p : NULL;
+ cpu_util = schedutil_cpu_util(cpu, util_cfs, cpu_cap,
+ FREQUENCY_UTIL, tsk);
+ max_util = max(max_util, cpu_util);
+ }
+
+ energy += em_pd_energy(pd->em_pd, max_util, sum_util);
+ }
+
+ return energy;
+}
+
+static void select_cpu_candidates(struct sched_domain *sd, cpumask_t *cpus,
+ struct perf_domain *pd, struct task_struct *p, int prev_cpu)
+{
+ int highest_spare_cap_cpu = prev_cpu, best_idle_cpu = -1;
+ unsigned long spare_cap, max_spare_cap, util, cpu_cap;
+ bool prefer_idle = uclamp_latency_sensitive(p);
+ bool boosted = uclamp_boosted(p);
+ unsigned long target_cap = boosted ? 0 : ULONG_MAX;
+ unsigned long highest_spare_cap = 0;
+ unsigned int min_exit_lat = UINT_MAX;
+ int cpu, max_spare_cap_cpu;
+ struct cpuidle_state *idle;
+
+ for (; pd; pd = pd->next) {
+ max_spare_cap_cpu = -1;
+ max_spare_cap = 0;
+
+ for_each_cpu_and(cpu, perf_domain_span(pd), sched_domain_span(sd)) {
+ if (!cpumask_test_cpu(cpu, &p->cpus_allowed))
+ continue;
+
+ util = cpu_util_next(cpu, p, cpu);
+ cpu_cap = capacity_of(cpu);
+ spare_cap = cpu_cap - util;
+
+ /*
+ * Skip CPUs that cannot satisfy the capacity request.
+ * IOW, placing the task there would make the CPU
+ * overutilized. Take uclamp into account to see how
+ * much capacity we can get out of the CPU; this is
+ * aligned with schedutil_cpu_util().
+ */
+ util = uclamp_rq_util_with(cpu_rq(cpu), util, p);
+ if (cpu_cap * 1024 < util * capacity_margin)
+ continue;
+
+ /*
+ * Find the CPU with the maximum spare capacity in
+ * the performance domain
+ */
+ if (spare_cap > max_spare_cap) {
+ max_spare_cap = spare_cap;
+ max_spare_cap_cpu = cpu;
+ }
+
+ if (!prefer_idle)
+ continue;
+
+ if (idle_cpu(cpu)) {
+ cpu_cap = capacity_orig_of(cpu);
+ if (boosted && cpu_cap < target_cap)
+ continue;
+ if (!boosted && cpu_cap > target_cap)
+ continue;
+ idle = idle_get_state(cpu_rq(cpu));
+ if (idle && idle->exit_latency > min_exit_lat &&
+ cpu_cap == target_cap)
+ continue;
+
+ if (idle)
+ min_exit_lat = idle->exit_latency;
+ target_cap = cpu_cap;
+ best_idle_cpu = cpu;
+ } else if (spare_cap > highest_spare_cap) {
+ highest_spare_cap = spare_cap;
+ highest_spare_cap_cpu = cpu;
+ }
+ }
+
+ if (!prefer_idle && max_spare_cap_cpu >= 0)
+ cpumask_set_cpu(max_spare_cap_cpu, cpus);
+ }
+
+ if (!prefer_idle)
+ return;
+
+ if (best_idle_cpu >= 0)
+ cpumask_set_cpu(best_idle_cpu, cpus);
+ else
+ cpumask_set_cpu(highest_spare_cap_cpu, cpus);
+}
+
+static DEFINE_PER_CPU(cpumask_t, energy_cpus);
+
+/*
+ * find_energy_efficient_cpu(): Find most energy-efficient target CPU for the
+ * waking task. find_energy_efficient_cpu() looks for the CPU with maximum
+ * spare capacity in each performance domain and uses it as a potential
+ * candidate to execute the task. Then, it uses the Energy Model to figure
+ * out which of the CPU candidates is the most energy-efficient.
+ *
+ * The rationale for this heuristic is as follows. In a performance domain,
+ * all the most energy efficient CPU candidates (according to the Energy
+ * Model) are those for which we'll request a low frequency. When there are
+ * several CPUs for which the frequency request will be the same, we don't
+ * have enough data to break the tie between them, because the Energy Model
+ * only includes active power costs. With this model, if we assume that
+ * frequency requests follow utilization (e.g. using schedutil), the CPU with
+ * the maximum spare capacity in a performance domain is guaranteed to be among
+ * the best candidates of the performance domain.
+ *
+ * In practice, it could be preferable from an energy standpoint to pack
+ * small tasks on a CPU in order to let other CPUs go in deeper idle states,
+ * but that could also hurt our chances to go cluster idle, and we have no
+ * ways to tell with the current Energy Model if this is actually a good
+ * idea or not. So, find_energy_efficient_cpu() basically favors
+ * cluster-packing, and spreading inside a cluster. That should at least be
+ * a good thing for latency, and this is consistent with the idea that most
+ * of the energy savings of EAS come from the asymmetry of the system, and
+ * not so much from breaking the tie between identical CPUs. That's also the
+ * reason why EAS is enabled in the topology code only for systems where
+ * SD_ASYM_CPUCAPACITY is set.
+ *
+ * NOTE: Forkees are not accepted in the energy-aware wake-up path because
+ * they don't have any useful utilization data yet and it's not possible to
+ * forecast their impact on energy consumption. Consequently, they will be
+ * placed by find_idlest_cpu() on the least loaded CPU, which might turn out
+ * to be energy-inefficient in some use-cases. The alternative would be to
+ * bias new tasks towards specific types of CPUs first, or to try to infer
+ * their util_avg from the parent task, but those heuristics could hurt
+ * other use-cases too. So, until someone finds a better way to solve this,
+ * let's keep things simple by re-using the existing slow path.
+ */
+
+static int find_energy_efficient_cpu(struct task_struct *p, int prev_cpu, int sync)
+{
+ unsigned long prev_energy = ULONG_MAX, best_energy = ULONG_MAX;
+ struct root_domain *rd = cpu_rq(smp_processor_id())->rd;
+ int weight, cpu, best_energy_cpu = prev_cpu;
+ unsigned long cur_energy;
+ struct perf_domain *pd;
+ struct sched_domain *sd;
+ cpumask_t *candidates;
+
+ if (sysctl_sched_sync_hint_enable && sync) {
+ cpu = smp_processor_id();
+ if (cpumask_test_cpu(cpu, &p->cpus_allowed))
+ return cpu;
+ }
+
+ rcu_read_lock();
+ pd = rcu_dereference(rd->pd);
+ if (!pd || READ_ONCE(rd->overutilized))
+ goto fail;
+
+ /*
+ * Energy-aware wake-up happens on the lowest sched_domain starting
+ * from sd_asym_cpucapacity spanning over this_cpu and prev_cpu.
+ */
+ sd = rcu_dereference(*this_cpu_ptr(&sd_asym_cpucapacity));
+ while (sd && !cpumask_test_cpu(prev_cpu, sched_domain_span(sd)))
+ sd = sd->parent;
+ if (!sd)
+ goto fail;
+
+ sync_entity_load_avg(&p->se);
+ if (!task_util_est(p))
+ goto unlock;
+
+ /* Pre-select a set of candidate CPUs. */
+ candidates = this_cpu_ptr(&energy_cpus);
+ cpumask_clear(candidates);
+
+ if (sched_feat(FIND_BEST_TARGET))
+ find_best_target(sd, candidates, p);
+ else
+ select_cpu_candidates(sd, candidates, pd, p, prev_cpu);
+
+ /* Bail out if no candidate was found. */
+ weight = cpumask_weight(candidates);
+ if (!weight)
+ goto unlock;
+
+ /* If there is only one sensible candidate, select it now. */
+ cpu = cpumask_first(candidates);
+ if (weight == 1 && ((uclamp_latency_sensitive(p) && idle_cpu(cpu)) ||
+ (cpu == prev_cpu))) {
+ best_energy_cpu = cpu;
+ goto unlock;
+ }
+
+ if (cpumask_test_cpu(prev_cpu, &p->cpus_allowed))
+ prev_energy = best_energy = compute_energy(p, prev_cpu, pd);
+ else
+ prev_energy = best_energy = ULONG_MAX;
+
+ /* Select the best candidate energy-wise. */
+ for_each_cpu(cpu, candidates) {
+ if (cpu == prev_cpu)
+ continue;
+ cur_energy = compute_energy(p, cpu, pd);
+ if (cur_energy < best_energy) {
+ best_energy = cur_energy;
+ best_energy_cpu = cpu;
+ }
+ }
+unlock:
+ rcu_read_unlock();
+
+ /*
+ * Pick the best CPU if prev_cpu cannot be used, or if it saves at
+ * least 6% of the energy used by prev_cpu.
+ */
+ if (prev_energy == ULONG_MAX)
+ return best_energy_cpu;
+
+ if ((prev_energy - best_energy) > (prev_energy >> 4))
+ return best_energy_cpu;
+
+ return prev_cpu;
+
+fail:
+ rcu_read_unlock();
+
+ return -1;
}
/*
@@ -6432,7 +7279,8 @@ static int wake_cap(struct task_struct *p, int cpu, int prev_cpu)
* preempt must be disabled.
*/
static int
-select_task_rq_fair(struct task_struct *p, int prev_cpu, int sd_flag, int wake_flags)
+select_task_rq_fair(struct task_struct *p, int prev_cpu, int sd_flag, int wake_flags,
+ int sibling_count_hint)
{
struct sched_domain *tmp, *sd = NULL;
int cpu = smp_processor_id();
@@ -6442,10 +7290,23 @@ select_task_rq_fair(struct task_struct *p, int prev_cpu, int sd_flag, int wake_f
if (sd_flag & SD_BALANCE_WAKE) {
record_wakee(p);
- want_affine = !wake_wide(p) && !wake_cap(p, cpu, prev_cpu)
- && cpumask_test_cpu(cpu, &p->cpus_allowed);
+
+ if (static_branch_unlikely(&sched_energy_present)) {
+ if (uclamp_latency_sensitive(p) && !sched_feat(EAS_PREFER_IDLE) && !sync)
+ goto sd_loop;
+
+ new_cpu = find_energy_efficient_cpu(p, prev_cpu, sync);
+ if (new_cpu >= 0)
+ return new_cpu;
+ new_cpu = prev_cpu;
+ }
+
+ want_affine = !wake_wide(p, sibling_count_hint) &&
+ !wake_cap(p, cpu, prev_cpu) &&
+ cpumask_test_cpu(cpu, &p->cpus_allowed);
}
+sd_loop:
rcu_read_lock();
for_each_domain(cpu, tmp) {
if (!(tmp->flags & SD_LOAD_BALANCE))
@@ -6835,9 +7696,12 @@ done: __maybe_unused;
if (hrtick_enabled(rq))
hrtick_start_fair(rq, p);
+ update_misfit_status(p, rq);
+
return p;
idle:
+ update_misfit_status(NULL, rq);
new_tasks = idle_balance(rq, rf);
/*
@@ -6851,6 +7715,12 @@ done: __maybe_unused;
if (new_tasks > 0)
goto again;
+ /*
+ * rq is about to be idle, check if we need to update the
+ * lost_idle_time of clock_pelt
+ */
+ update_idle_rq_clock_pelt(rq);
+
return NULL;
}
@@ -7043,6 +7913,13 @@ static unsigned long __read_mostly max_load_balance_interval = HZ/10;
enum fbq_type { regular, remote, all };
+enum group_type {
+ group_other = 0,
+ group_misfit_task,
+ group_imbalanced,
+ group_overloaded,
+};
+
#define LBF_ALL_PINNED 0x01
#define LBF_NEED_BREAK 0x02
#define LBF_DST_PINNED 0x04
@@ -7063,6 +7940,7 @@ struct lb_env {
int new_dst_cpu;
enum cpu_idle_type idle;
long imbalance;
+ unsigned int src_grp_nr_running;
/* The set of CPUs under consideration for load-balancing */
struct cpumask *cpus;
@@ -7073,6 +7951,7 @@ struct lb_env {
unsigned int loop_max;
enum fbq_type fbq_type;
+ enum group_type src_grp_type;
struct list_head tasks;
};
@@ -7506,7 +8385,7 @@ static void update_blocked_averages(int cpu)
for_each_leaf_cfs_rq_safe(rq, cfs_rq, pos) {
struct sched_entity *se;
- if (update_cfs_rq_load_avg(cfs_rq_clock_task(cfs_rq), cfs_rq))
+ if (update_cfs_rq_load_avg(cfs_rq_clock_pelt(cfs_rq), cfs_rq))
update_tg_load_avg(cfs_rq, 0);
/* Propagate pending load changes to the parent, if any: */
@@ -7527,8 +8406,8 @@ static void update_blocked_averages(int cpu)
}
curr_class = rq->curr->sched_class;
- update_rt_rq_load_avg(rq_clock_task(rq), rq, curr_class == &rt_sched_class);
- update_dl_rq_load_avg(rq_clock_task(rq), rq, curr_class == &dl_sched_class);
+ update_rt_rq_load_avg(rq_clock_pelt(rq), rq, curr_class == &rt_sched_class);
+ update_dl_rq_load_avg(rq_clock_pelt(rq), rq, curr_class == &dl_sched_class);
update_irq_load_avg(rq, 0);
/* Don't need periodic decay once load/util_avg are null */
if (others_have_blocked(rq))
@@ -7598,11 +8477,11 @@ static inline void update_blocked_averages(int cpu)
rq_lock_irqsave(rq, &rf);
update_rq_clock(rq);
- update_cfs_rq_load_avg(cfs_rq_clock_task(cfs_rq), cfs_rq);
+ update_cfs_rq_load_avg(cfs_rq_clock_pelt(cfs_rq), cfs_rq);
curr_class = rq->curr->sched_class;
- update_rt_rq_load_avg(rq_clock_task(rq), rq, curr_class == &rt_sched_class);
- update_dl_rq_load_avg(rq_clock_task(rq), rq, curr_class == &dl_sched_class);
+ update_rt_rq_load_avg(rq_clock_pelt(rq), rq, curr_class == &rt_sched_class);
+ update_dl_rq_load_avg(rq_clock_pelt(rq), rq, curr_class == &dl_sched_class);
update_irq_load_avg(rq, 0);
#ifdef CONFIG_NO_HZ_COMMON
rq->last_blocked_load_update_tick = jiffies;
@@ -7620,12 +8499,6 @@ static unsigned long task_h_load(struct task_struct *p)
/********** Helpers for find_busiest_group ************************/
-enum group_type {
- group_other = 0,
- group_imbalanced,
- group_overloaded,
-};
-
/*
* sg_lb_stats - stats of a sched_group required for load_balancing
*/
@@ -7641,6 +8514,7 @@ struct sg_lb_stats {
unsigned int group_weight;
enum group_type group_type;
int group_no_capacity;
+ unsigned long group_misfit_task_load; /* A CPU has a task too big for its capacity */
#ifdef CONFIG_NUMA_BALANCING
unsigned int nr_numa_running;
unsigned int nr_preferred_running;
@@ -7713,10 +8587,9 @@ static inline int get_sd_load_idx(struct sched_domain *sd,
return load_idx;
}
-static unsigned long scale_rt_capacity(struct sched_domain *sd, int cpu)
+static unsigned long scale_rt_capacity(int cpu, unsigned long max)
{
struct rq *rq = cpu_rq(cpu);
- unsigned long max = arch_scale_cpu_capacity(sd, cpu);
unsigned long used, free;
unsigned long irq;
@@ -7736,12 +8609,47 @@ static unsigned long scale_rt_capacity(struct sched_domain *sd, int cpu)
return scale_irq_capacity(free, irq, max);
}
+void init_max_cpu_capacity(struct max_cpu_capacity *mcc) {
+ raw_spin_lock_init(&mcc->lock);
+ mcc->val = 0;
+ mcc->cpu = -1;
+}
+
static void update_cpu_capacity(struct sched_domain *sd, int cpu)
{
- unsigned long capacity = scale_rt_capacity(sd, cpu);
+ unsigned long capacity = arch_scale_cpu_capacity(sd, cpu);
struct sched_group *sdg = sd->groups;
+ struct max_cpu_capacity *mcc;
+ unsigned long max_capacity;
+ int max_cap_cpu;
+ unsigned long flags;
- cpu_rq(cpu)->cpu_capacity_orig = arch_scale_cpu_capacity(sd, cpu);
+ cpu_rq(cpu)->cpu_capacity_orig = capacity;
+
+ capacity *= arch_scale_max_freq_capacity(sd, cpu);
+ capacity >>= SCHED_CAPACITY_SHIFT;
+
+ mcc = &cpu_rq(cpu)->rd->max_cpu_capacity;
+
+ raw_spin_lock_irqsave(&mcc->lock, flags);
+ max_capacity = mcc->val;
+ max_cap_cpu = mcc->cpu;
+
+ if ((max_capacity > capacity && max_cap_cpu == cpu) ||
+ (max_capacity < capacity)) {
+ mcc->val = capacity;
+ mcc->cpu = cpu;
+#ifdef CONFIG_SCHED_DEBUG
+ raw_spin_unlock_irqrestore(&mcc->lock, flags);
+ printk_deferred(KERN_INFO "CPU%d: update max cpu_capacity %lu\n",
+ cpu, capacity);
+ goto skip_unlock;
+#endif
+ }
+ raw_spin_unlock_irqrestore(&mcc->lock, flags);
+
+skip_unlock: __attribute__ ((unused));
+ capacity = scale_rt_capacity(cpu, capacity);
if (!capacity)
capacity = 1;
@@ -7749,13 +8657,14 @@ static void update_cpu_capacity(struct sched_domain *sd, int cpu)
cpu_rq(cpu)->cpu_capacity = capacity;
sdg->sgc->capacity = capacity;
sdg->sgc->min_capacity = capacity;
+ sdg->sgc->max_capacity = capacity;
}
void update_group_capacity(struct sched_domain *sd, int cpu)
{
struct sched_domain *child = sd->child;
struct sched_group *group, *sdg = sd->groups;
- unsigned long capacity, min_capacity;
+ unsigned long capacity, min_capacity, max_capacity;
unsigned long interval;
interval = msecs_to_jiffies(sd->balance_interval);
@@ -7769,6 +8678,7 @@ void update_group_capacity(struct sched_domain *sd, int cpu)
capacity = 0;
min_capacity = ULONG_MAX;
+ max_capacity = 0;
if (child->flags & SD_OVERLAP) {
/*
@@ -7799,6 +8709,7 @@ void update_group_capacity(struct sched_domain *sd, int cpu)
}
min_capacity = min(capacity, min_capacity);
+ max_capacity = max(capacity, max_capacity);
}
} else {
/*
@@ -7812,12 +8723,14 @@ void update_group_capacity(struct sched_domain *sd, int cpu)
capacity += sgc->capacity;
min_capacity = min(sgc->min_capacity, min_capacity);
+ max_capacity = max(sgc->max_capacity, max_capacity);
group = group->next;
} while (group != child->groups);
}
sdg->sgc->capacity = capacity;
sdg->sgc->min_capacity = min_capacity;
+ sdg->sgc->max_capacity = max_capacity;
}
/*
@@ -7913,16 +8826,27 @@ group_is_overloaded(struct lb_env *env, struct sg_lb_stats *sgs)
}
/*
- * group_smaller_cpu_capacity: Returns true if sched_group sg has smaller
+ * group_smaller_min_cpu_capacity: Returns true if sched_group sg has smaller
* per-CPU capacity than sched_group ref.
*/
static inline bool
-group_smaller_cpu_capacity(struct sched_group *sg, struct sched_group *ref)
+group_smaller_min_cpu_capacity(struct sched_group *sg, struct sched_group *ref)
{
return sg->sgc->min_capacity * capacity_margin <
ref->sgc->min_capacity * 1024;
}
+/*
+ * group_smaller_max_cpu_capacity: Returns true if sched_group sg has smaller
+ * per-CPU capacity_orig than sched_group ref.
+ */
+static inline bool
+group_smaller_max_cpu_capacity(struct sched_group *sg, struct sched_group *ref)
+{
+ return sg->sgc->max_capacity * capacity_margin <
+ ref->sgc->max_capacity * 1024;
+}
+
static inline enum
group_type group_classify(struct sched_group *group,
struct sg_lb_stats *sgs)
@@ -7933,6 +8857,9 @@ group_type group_classify(struct sched_group *group,
if (sg_imbalanced(group))
return group_imbalanced;
+ if (sgs->group_misfit_task_load)
+ return group_misfit_task;
+
return group_other;
}
@@ -7962,16 +8889,16 @@ static bool update_nohz_stats(struct rq *rq, bool force)
* update_sg_lb_stats - Update sched_group's statistics for load balancing.
* @env: The load balancing environment.
* @group: sched_group whose statistics are to be updated.
- * @load_idx: Load index of sched_domain of this_cpu for load calc.
- * @local_group: Does group contain this_cpu.
* @sgs: variable to hold the statistics for this group.
- * @overload: Indicate more than one runnable task for any CPU.
+ * @sg_status: Holds flag indicating the status of the sched_group
*/
static inline void update_sg_lb_stats(struct lb_env *env,
- struct sched_group *group, int load_idx,
- int local_group, struct sg_lb_stats *sgs,
- bool *overload)
+ struct sched_group *group,
+ struct sg_lb_stats *sgs,
+ int *sg_status)
{
+ int local_group = cpumask_test_cpu(env->dst_cpu, sched_group_span(group));
+ int load_idx = get_sd_load_idx(env->sd, env->idle);
unsigned long load;
int i, nr_running;
@@ -7995,7 +8922,10 @@ static inline void update_sg_lb_stats(struct lb_env *env,
nr_running = rq->nr_running;
if (nr_running > 1)
- *overload = true;
+ *sg_status |= SG_OVERLOAD;
+
+ if (cpu_overutilized(i))
+ *sg_status |= SG_OVERUTILIZED;
#ifdef CONFIG_NUMA_BALANCING
sgs->nr_numa_running += rq->nr_numa_running;
@@ -8007,6 +8937,12 @@ static inline void update_sg_lb_stats(struct lb_env *env,
*/
if (!nr_running && idle_cpu(i))
sgs->idle_cpus++;
+
+ if (env->sd->flags & SD_ASYM_CPUCAPACITY &&
+ sgs->group_misfit_task_load < rq->misfit_task_load) {
+ sgs->group_misfit_task_load = rq->misfit_task_load;
+ *sg_status |= SG_OVERLOAD;
+ }
}
/* Adjust by relative CPU capacity of the group */
@@ -8042,6 +8978,17 @@ static bool update_sd_pick_busiest(struct lb_env *env,
{
struct sg_lb_stats *busiest = &sds->busiest_stat;
+ /*
+ * Don't try to pull misfit tasks we can't help.
+ * We can use max_capacity here as reduction in capacity on some
+ * CPUs in the group should either be possible to resolve
+ * internally or be covered by avg_load imbalance (eventually).
+ */
+ if (sgs->group_type == group_misfit_task &&
+ (!group_smaller_max_cpu_capacity(sg, sds->local) ||
+ !group_has_capacity(env, &sds->local_stat)))
+ return false;
+
if (sgs->group_type > busiest->group_type)
return true;
@@ -8061,7 +9008,14 @@ static bool update_sd_pick_busiest(struct lb_env *env,
* power/energy consequences are not considered.
*/
if (sgs->sum_nr_running <= sgs->group_weight &&
- group_smaller_cpu_capacity(sds->local, sg))
+ group_smaller_min_cpu_capacity(sds->local, sg))
+ return false;
+
+ /*
+ * If we have more than one misfit sg go with the biggest misfit.
+ */
+ if (sgs->group_type == group_misfit_task &&
+ sgs->group_misfit_task_load < busiest->group_misfit_task_load)
return false;
asym_packing:
@@ -8132,19 +9086,14 @@ static inline void update_sd_lb_stats(struct lb_env *env, struct sd_lb_stats *sd
struct sched_group *sg = env->sd->groups;
struct sg_lb_stats *local = &sds->local_stat;
struct sg_lb_stats tmp_sgs;
- int load_idx, prefer_sibling = 0;
- bool overload = false;
-
- if (child && child->flags & SD_PREFER_SIBLING)
- prefer_sibling = 1;
+ bool prefer_sibling = child && child->flags & SD_PREFER_SIBLING;
+ int sg_status = 0;
#ifdef CONFIG_NO_HZ_COMMON
if (env->idle == CPU_NEWLY_IDLE && READ_ONCE(nohz.has_blocked))
env->flags |= LBF_NOHZ_STATS;
#endif
- load_idx = get_sd_load_idx(env->sd, env->idle);
-
do {
struct sg_lb_stats *sgs = &tmp_sgs;
int local_group;
@@ -8159,8 +9108,7 @@ static inline void update_sd_lb_stats(struct lb_env *env, struct sd_lb_stats *sd
update_group_capacity(env->sd, env->dst_cpu);
}
- update_sg_lb_stats(env, sg, load_idx, local_group, sgs,
- &overload);
+ update_sg_lb_stats(env, sg, sgs, &sg_status);
if (local_group)
goto next_group;
@@ -8208,11 +9156,22 @@ static inline void update_sd_lb_stats(struct lb_env *env, struct sd_lb_stats *sd
if (env->sd->flags & SD_NUMA)
env->fbq_type = fbq_classify_group(&sds->busiest_stat);
+ env->src_grp_nr_running = sds->busiest_stat.sum_nr_running;
+
if (!env->sd->parent) {
+ struct root_domain *rd = env->dst_rq->rd;
+
/* update overload indicator if we are at root domain */
- if (env->dst_rq->rd->overload != overload)
- env->dst_rq->rd->overload = overload;
+ WRITE_ONCE(rd->overload, sg_status & SG_OVERLOAD);
+
+ /* Update over-utilization (tipping point, U >= 0) indicator */
+ WRITE_ONCE(rd->overutilized, sg_status & SG_OVERUTILIZED);
+ trace_sched_overutilized(!!(sg_status & SG_OVERUTILIZED));
+ } else if (sg_status & SG_OVERUTILIZED) {
+ WRITE_ONCE(env->dst_rq->rd->overutilized, SG_OVERUTILIZED);
+ trace_sched_overutilized(1);
}
+
}
/**
@@ -8328,7 +9287,22 @@ void fix_small_imbalance(struct lb_env *env, struct sd_lb_stats *sds)
capa_move /= SCHED_CAPACITY_SCALE;
/* Move if we gain throughput */
- if (capa_move > capa_now)
+ if (capa_move > capa_now) {
+ env->imbalance = busiest->load_per_task;
+ return;
+ }
+
+ /* We can't see throughput improvement with the load-based
+ * method, but it is possible depending upon group size and
+ * capacity range that there might still be an underutilized
+ * cpu available in an asymmetric capacity system. Do one last
+ * check just in case.
+ */
+ if (env->sd->flags & SD_ASYM_CPUCAPACITY &&
+ busiest->group_type == group_overloaded &&
+ busiest->sum_nr_running > busiest->group_weight &&
+ local->sum_nr_running < local->group_weight &&
+ local->group_capacity < busiest->group_capacity)
env->imbalance = busiest->load_per_task;
}
@@ -8361,8 +9335,9 @@ static inline void calculate_imbalance(struct lb_env *env, struct sd_lb_stats *s
* factors in sg capacity and sgs with smaller group_type are
* skipped when updating the busiest sg:
*/
- if (busiest->avg_load <= sds->avg_load ||
- local->avg_load >= sds->avg_load) {
+ if (busiest->group_type != group_misfit_task &&
+ (busiest->avg_load <= sds->avg_load ||
+ local->avg_load >= sds->avg_load)) {
env->imbalance = 0;
return fix_small_imbalance(env, sds);
}
@@ -8396,6 +9371,22 @@ static inline void calculate_imbalance(struct lb_env *env, struct sd_lb_stats *s
(sds->avg_load - local->avg_load) * local->group_capacity
) / SCHED_CAPACITY_SCALE;
+ /* Boost imbalance to allow misfit task to be balanced.
+ * Always do this if we are doing a NEWLY_IDLE balance
+ * on the assumption that any tasks we have must not be
+ * long-running (and hence we cannot rely upon load).
+ * However if we are not idle, we should assume the tasks
+ * we have are longer running and not override load-based
+ * calculations above unless we are sure that the local
+ * group is underutilized.
+ */
+ if (busiest->group_type == group_misfit_task &&
+ (env->idle == CPU_NEWLY_IDLE ||
+ local->sum_nr_running < local->group_weight)) {
+ env->imbalance = max_t(long, env->imbalance,
+ busiest->group_misfit_task_load);
+ }
+
/*
* if *imbalance is less than the average load per runnable task
* there is no guarantee that any tasks will be moved so we'll have
@@ -8431,6 +9422,14 @@ static struct sched_group *find_busiest_group(struct lb_env *env)
* this level.
*/
update_sd_lb_stats(env, &sds);
+
+ if (static_branch_unlikely(&sched_energy_present)) {
+ struct root_domain *rd = env->dst_rq->rd;
+
+ if (rcu_dereference(rd->pd) && !READ_ONCE(rd->overutilized))
+ goto out_balanced;
+ }
+
local = &sds.local_stat;
busiest = &sds.busiest_stat;
@@ -8462,6 +9461,10 @@ static struct sched_group *find_busiest_group(struct lb_env *env)
busiest->group_no_capacity)
goto force_balance;
+ /* Misfit tasks should be dealt with regardless of the avg load */
+ if (busiest->group_type == group_misfit_task)
+ goto force_balance;
+
/*
* If the local group is busier than the selected busiest group
* don't try and pull any tasks.
@@ -8499,6 +9502,7 @@ static struct sched_group *find_busiest_group(struct lb_env *env)
force_balance:
/* Looks like there is an imbalance. Compute it */
+ env->src_grp_type = busiest->group_type;
calculate_imbalance(env, &sds);
return env->imbalance ? sds.busiest : NULL;
@@ -8546,8 +9550,32 @@ static struct rq *find_busiest_queue(struct lb_env *env,
if (rt > env->fbq_type)
continue;
+ /*
+ * For ASYM_CPUCAPACITY domains with misfit tasks we simply
+ * seek the "biggest" misfit task.
+ */
+ if (env->src_grp_type == group_misfit_task) {
+ if (rq->misfit_task_load > busiest_load) {
+ busiest_load = rq->misfit_task_load;
+ busiest = rq;
+ }
+
+ continue;
+ }
+
capacity = capacity_of(i);
+ /*
+ * For ASYM_CPUCAPACITY domains, don't pick a CPU that could
+ * eventually lead to active_balancing high->low capacity.
+ * Higher per-CPU capacity is considered better than balancing
+ * average load.
+ */
+ if (env->sd->flags & SD_ASYM_CPUCAPACITY &&
+ capacity_of(env->dst_cpu) < capacity &&
+ rq->nr_running == 1)
+ continue;
+
wl = weighted_cpuload(rq);
/*
@@ -8615,6 +9643,20 @@ static int need_active_balance(struct lb_env *env)
return 1;
}
+ if (env->src_grp_type == group_misfit_task)
+ return 1;
+
+ if ((capacity_of(env->src_cpu) < capacity_of(env->dst_cpu)) &&
+ env->src_rq->cfs.h_nr_running == 1 &&
+ cpu_overutilized(env->src_cpu) &&
+ !cpu_overutilized(env->dst_cpu)) {
+ return 1;
+ }
+
+ if (env->src_grp_type == group_overloaded && env->src_rq->misfit_task_load)
+ return 1;
+
+
return unlikely(sd->nr_balance_failed > sd->cache_nice_tries+2);
}
@@ -8833,7 +9875,8 @@ static int load_balance(int this_cpu, struct rq *this_rq,
* excessive cache_hot migrations and active balances.
*/
if (idle != CPU_NEWLY_IDLE)
- sd->nr_balance_failed++;
+ if (env.src_grp_nr_running > 1)
+ sd->nr_balance_failed++;
if (need_active_balance(&env)) {
unsigned long flags;
@@ -9276,7 +10319,7 @@ static void nohz_balancer_kick(struct rq *rq)
if (time_before(now, nohz.next_balance))
goto out;
- if (rq->nr_running >= 2) {
+ if (rq->nr_running >= 2 || rq->misfit_task_load) {
flags = NOHZ_KICK_MASK;
goto out;
}
@@ -9305,7 +10348,7 @@ static void nohz_balancer_kick(struct rq *rq)
}
}
- sd = rcu_dereference(per_cpu(sd_asym, cpu));
+ sd = rcu_dereference(per_cpu(sd_asym_packing, cpu));
if (sd) {
for_each_cpu(i, sched_domain_span(sd)) {
if (i == cpu ||
@@ -9645,7 +10688,7 @@ static int idle_balance(struct rq *this_rq, struct rq_flags *rf)
rq_unpin_lock(this_rq, rf);
if (this_rq->avg_idle < sysctl_sched_migration_cost ||
- !this_rq->rd->overload) {
+ !READ_ONCE(this_rq->rd->overload)) {
rcu_read_lock();
sd = rcu_dereference_check_sched_domain(this_rq->sd);
@@ -9807,6 +10850,9 @@ static void task_tick_fair(struct rq *rq, struct task_struct *curr, int queued)
if (static_branch_unlikely(&sched_numa_balancing))
task_tick_numa(rq, curr);
+
+ update_misfit_status(curr, rq);
+ update_overutilized_status(task_rq(curr));
}
/*
@@ -10312,6 +11358,10 @@ const struct sched_class fair_sched_class = {
#ifdef CONFIG_FAIR_GROUP_SCHED
.task_change_group = task_change_group_fair,
#endif
+
+#ifdef CONFIG_UCLAMP_TASK
+ .uclamp_enabled = 1,
+#endif
};
#ifdef CONFIG_SCHED_DEBUG
diff --git a/kernel/sched/features.h b/kernel/sched/features.h
index 85ae848..bd395af 100644
--- a/kernel/sched/features.h
+++ b/kernel/sched/features.h
@@ -90,3 +90,34 @@ SCHED_FEAT(WA_BIAS, true)
* UtilEstimation. Use estimated CPU utilization.
*/
SCHED_FEAT(UTIL_EST, true)
+SCHED_FEAT(UTIL_EST_FASTUP, true)
+
+/*
+ * Fast pre-selection of CPU candidates for EAS.
+ */
+SCHED_FEAT(FIND_BEST_TARGET, false)
+
+/*
+ * Energy aware scheduling algorithm choices:
+ * EAS_PREFER_IDLE
+ * Direct tasks in a schedtune.prefer_idle=1 group through
+ * the EAS path for wakeup task placement. Otherwise, put
+ * those tasks through the mainline slow path.
+ */
+SCHED_FEAT(EAS_PREFER_IDLE, true)
+
+/*
+ * Request max frequency from schedutil whenever a RT task is running.
+ */
+SCHED_FEAT(SUGOV_RT_MAX_FREQ, false)
+
+/*
+ * Apply schedtune boost hold to tasks of all sched classes.
+ * If enabled, schedtune will hold the boost applied to a CPU
+ * for 50ms regardless of task activation - if the task is
+ * still running 50ms later, the boost hold expires and schedtune
+ * boost will expire immediately the task stops.
+ * If disabled, this behaviour will only apply to tasks of the
+ * RT class.
+ */
+SCHED_FEAT(SCHEDTUNE_BOOST_HOLD_ALL, false)
diff --git a/kernel/sched/idle.c b/kernel/sched/idle.c
index 44a1736..8a88061 100644
--- a/kernel/sched/idle.c
+++ b/kernel/sched/idle.c
@@ -16,9 +16,10 @@ extern char __cpuidle_text_start[], __cpuidle_text_end[];
* sched_idle_set_state - Record idle state for the current CPU.
* @idle_state: State to record.
*/
-void sched_idle_set_state(struct cpuidle_state *idle_state)
+void sched_idle_set_state(struct cpuidle_state *idle_state, int index)
{
idle_set_state(this_rq(), idle_state);
+ idle_set_state_idx(this_rq(), index);
}
static int __read_mostly cpu_idle_force_poll;
@@ -375,7 +376,8 @@ void cpu_startup_entry(enum cpuhp_state state)
#ifdef CONFIG_SMP
static int
-select_task_rq_idle(struct task_struct *p, int cpu, int sd_flag, int flags)
+select_task_rq_idle(struct task_struct *p, int cpu, int sd_flag, int flags,
+ int sibling_count_hint)
{
return task_cpu(p); /* IDLE tasks as never migrated */
}
diff --git a/kernel/sched/loadavg.c b/kernel/sched/loadavg.c
index a171c12..28a5165 100644
--- a/kernel/sched/loadavg.c
+++ b/kernel/sched/loadavg.c
@@ -91,19 +91,73 @@ long calc_load_fold_active(struct rq *this_rq, long adjust)
return delta;
}
-/*
- * a1 = a0 * e + a * (1 - e)
+/**
+ * fixed_power_int - compute: x^n, in O(log n) time
+ *
+ * @x: base of the power
+ * @frac_bits: fractional bits of @x
+ * @n: power to raise @x to.
+ *
+ * By exploiting the relation between the definition of the natural power
+ * function: x^n := x*x*...*x (x multiplied by itself for n times), and
+ * the binary encoding of numbers used by computers: n := \Sum n_i * 2^i,
+ * (where: n_i \elem {0, 1}, the binary vector representing n),
+ * we find: x^n := x^(\Sum n_i * 2^i) := \Prod x^(n_i * 2^i), which is
+ * of course trivially computable in O(log_2 n), the length of our binary
+ * vector.
*/
static unsigned long
-calc_load(unsigned long load, unsigned long exp, unsigned long active)
+fixed_power_int(unsigned long x, unsigned int frac_bits, unsigned int n)
{
- unsigned long newload;
+ unsigned long result = 1UL << frac_bits;
- newload = load * exp + active * (FIXED_1 - exp);
- if (active >= load)
- newload += FIXED_1-1;
+ if (n) {
+ for (;;) {
+ if (n & 1) {
+ result *= x;
+ result += 1UL << (frac_bits - 1);
+ result >>= frac_bits;
+ }
+ n >>= 1;
+ if (!n)
+ break;
+ x *= x;
+ x += 1UL << (frac_bits - 1);
+ x >>= frac_bits;
+ }
+ }
- return newload / FIXED_1;
+ return result;
+}
+
+/*
+ * a1 = a0 * e + a * (1 - e)
+ *
+ * a2 = a1 * e + a * (1 - e)
+ * = (a0 * e + a * (1 - e)) * e + a * (1 - e)
+ * = a0 * e^2 + a * (1 - e) * (1 + e)
+ *
+ * a3 = a2 * e + a * (1 - e)
+ * = (a0 * e^2 + a * (1 - e) * (1 + e)) * e + a * (1 - e)
+ * = a0 * e^3 + a * (1 - e) * (1 + e + e^2)
+ *
+ * ...
+ *
+ * an = a0 * e^n + a * (1 - e) * (1 + e + ... + e^n-1) [1]
+ * = a0 * e^n + a * (1 - e) * (1 - e^n)/(1 - e)
+ * = a0 * e^n + a * (1 - e^n)
+ *
+ * [1] application of the geometric series:
+ *
+ * n 1 - x^(n+1)
+ * S_n := \Sum x^i = -------------
+ * i=0 1 - x
+ */
+unsigned long
+calc_load_n(unsigned long load, unsigned long exp,
+ unsigned long active, unsigned int n)
+{
+ return calc_load(load, fixed_power_int(exp, FSHIFT, n), active);
}
#ifdef CONFIG_NO_HZ_COMMON
@@ -225,75 +279,6 @@ static long calc_load_nohz_fold(void)
return delta;
}
-/**
- * fixed_power_int - compute: x^n, in O(log n) time
- *
- * @x: base of the power
- * @frac_bits: fractional bits of @x
- * @n: power to raise @x to.
- *
- * By exploiting the relation between the definition of the natural power
- * function: x^n := x*x*...*x (x multiplied by itself for n times), and
- * the binary encoding of numbers used by computers: n := \Sum n_i * 2^i,
- * (where: n_i \elem {0, 1}, the binary vector representing n),
- * we find: x^n := x^(\Sum n_i * 2^i) := \Prod x^(n_i * 2^i), which is
- * of course trivially computable in O(log_2 n), the length of our binary
- * vector.
- */
-static unsigned long
-fixed_power_int(unsigned long x, unsigned int frac_bits, unsigned int n)
-{
- unsigned long result = 1UL << frac_bits;
-
- if (n) {
- for (;;) {
- if (n & 1) {
- result *= x;
- result += 1UL << (frac_bits - 1);
- result >>= frac_bits;
- }
- n >>= 1;
- if (!n)
- break;
- x *= x;
- x += 1UL << (frac_bits - 1);
- x >>= frac_bits;
- }
- }
-
- return result;
-}
-
-/*
- * a1 = a0 * e + a * (1 - e)
- *
- * a2 = a1 * e + a * (1 - e)
- * = (a0 * e + a * (1 - e)) * e + a * (1 - e)
- * = a0 * e^2 + a * (1 - e) * (1 + e)
- *
- * a3 = a2 * e + a * (1 - e)
- * = (a0 * e^2 + a * (1 - e) * (1 + e)) * e + a * (1 - e)
- * = a0 * e^3 + a * (1 - e) * (1 + e + e^2)
- *
- * ...
- *
- * an = a0 * e^n + a * (1 - e) * (1 + e + ... + e^n-1) [1]
- * = a0 * e^n + a * (1 - e) * (1 - e^n)/(1 - e)
- * = a0 * e^n + a * (1 - e^n)
- *
- * [1] application of the geometric series:
- *
- * n 1 - x^(n+1)
- * S_n := \Sum x^i = -------------
- * i=0 1 - x
- */
-static unsigned long
-calc_load_n(unsigned long load, unsigned long exp,
- unsigned long active, unsigned int n)
-{
- return calc_load(load, fixed_power_int(exp, FSHIFT, n), active);
-}
-
/*
* NO_HZ can leave us missing all per-CPU ticks calling
* calc_load_fold_active(), but since a NO_HZ CPU folds its delta into
diff --git a/kernel/sched/pelt.c b/kernel/sched/pelt.c
index 48a1264..19ba404 100644
--- a/kernel/sched/pelt.c
+++ b/kernel/sched/pelt.c
@@ -26,9 +26,10 @@
#include <linux/sched.h>
#include "sched.h"
-#include "sched-pelt.h"
#include "pelt.h"
+#include <trace/events/sched.h>
+
/*
* Approximate:
* val * y^n, where y^32 ~= 0.5 (~1 scheduling period)
@@ -106,16 +107,12 @@ static u32 __accumulate_pelt_segments(u64 periods, u32 d1, u32 d3)
* n=1
*/
static __always_inline u32
-accumulate_sum(u64 delta, int cpu, struct sched_avg *sa,
+accumulate_sum(u64 delta, struct sched_avg *sa,
unsigned long load, unsigned long runnable, int running)
{
- unsigned long scale_freq, scale_cpu;
u32 contrib = (u32)delta; /* p == 0 -> delta < 1024 */
u64 periods;
- scale_freq = arch_scale_freq_capacity(cpu);
- scale_cpu = arch_scale_cpu_capacity(NULL, cpu);
-
delta += sa->period_contrib;
periods = delta / 1024; /* A period is 1024us (~1ms) */
@@ -137,13 +134,12 @@ accumulate_sum(u64 delta, int cpu, struct sched_avg *sa,
}
sa->period_contrib = delta;
- contrib = cap_scale(contrib, scale_freq);
if (load)
sa->load_sum += load * contrib;
if (runnable)
sa->runnable_load_sum += runnable * contrib;
if (running)
- sa->util_sum += contrib * scale_cpu;
+ sa->util_sum += contrib << SCHED_CAPACITY_SHIFT;
return periods;
}
@@ -177,7 +173,7 @@ accumulate_sum(u64 delta, int cpu, struct sched_avg *sa,
* = u_0 + u_1*y + u_2*y^2 + ... [re-labeling u_i --> u_{i+1}]
*/
static __always_inline int
-___update_load_sum(u64 now, int cpu, struct sched_avg *sa,
+___update_load_sum(u64 now, struct sched_avg *sa,
unsigned long load, unsigned long runnable, int running)
{
u64 delta;
@@ -221,7 +217,7 @@ ___update_load_sum(u64 now, int cpu, struct sched_avg *sa,
* Step 1: accumulate *_sum since last_update_time. If we haven't
* crossed period boundaries, finish.
*/
- if (!accumulate_sum(delta, cpu, sa, load, runnable, running))
+ if (!accumulate_sum(delta, sa, load, runnable, running))
return 0;
return 1;
@@ -267,43 +263,46 @@ ___update_load_avg(struct sched_avg *sa, unsigned long load, unsigned long runna
* runnable_load_avg = \Sum se->avg.runable_load_avg
*/
-int __update_load_avg_blocked_se(u64 now, int cpu, struct sched_entity *se)
+int __update_load_avg_blocked_se(u64 now, struct sched_entity *se)
{
- if (entity_is_task(se))
- se->runnable_weight = se->load.weight;
-
- if (___update_load_sum(now, cpu, &se->avg, 0, 0, 0)) {
+ if (___update_load_sum(now, &se->avg, 0, 0, 0)) {
___update_load_avg(&se->avg, se_weight(se), se_runnable(se));
+
+ trace_sched_load_se(se);
+
return 1;
}
return 0;
}
-int __update_load_avg_se(u64 now, int cpu, struct cfs_rq *cfs_rq, struct sched_entity *se)
+int __update_load_avg_se(u64 now, struct cfs_rq *cfs_rq, struct sched_entity *se)
{
- if (entity_is_task(se))
- se->runnable_weight = se->load.weight;
-
- if (___update_load_sum(now, cpu, &se->avg, !!se->on_rq, !!se->on_rq,
+ if (___update_load_sum(now, &se->avg, !!se->on_rq, !!se->on_rq,
cfs_rq->curr == se)) {
___update_load_avg(&se->avg, se_weight(se), se_runnable(se));
cfs_se_util_change(&se->avg);
+
+ trace_sched_load_se(se);
+
return 1;
}
return 0;
}
-int __update_load_avg_cfs_rq(u64 now, int cpu, struct cfs_rq *cfs_rq)
+int __update_load_avg_cfs_rq(u64 now, struct cfs_rq *cfs_rq)
{
- if (___update_load_sum(now, cpu, &cfs_rq->avg,
+ if (___update_load_sum(now, &cfs_rq->avg,
scale_load_down(cfs_rq->load.weight),
scale_load_down(cfs_rq->runnable_weight),
cfs_rq->curr != NULL)) {
___update_load_avg(&cfs_rq->avg, 1, 1);
+
+ trace_sched_load_cfs_rq(cfs_rq);
+
return 1;
}
@@ -323,12 +322,15 @@ int __update_load_avg_cfs_rq(u64 now, int cpu, struct cfs_rq *cfs_rq)
int update_rt_rq_load_avg(u64 now, struct rq *rq, int running)
{
- if (___update_load_sum(now, rq->cpu, &rq->avg_rt,
+ if (___update_load_sum(now, &rq->avg_rt,
running,
running,
running)) {
___update_load_avg(&rq->avg_rt, 1, 1);
+
+ trace_sched_load_rt_rq(rq);
+
return 1;
}
@@ -346,7 +348,7 @@ int update_rt_rq_load_avg(u64 now, struct rq *rq, int running)
int update_dl_rq_load_avg(u64 now, struct rq *rq, int running)
{
- if (___update_load_sum(now, rq->cpu, &rq->avg_dl,
+ if (___update_load_sum(now, &rq->avg_dl,
running,
running,
running)) {
@@ -371,22 +373,31 @@ int update_dl_rq_load_avg(u64 now, struct rq *rq, int running)
int update_irq_load_avg(struct rq *rq, u64 running)
{
int ret = 0;
+
+ /*
+ * We can't use clock_pelt because irq time is not accounted in
+ * clock_task. Instead we directly scale the running time to
+ * reflect the real amount of computation
+ */
+ running = cap_scale(running, arch_scale_freq_capacity(cpu_of(rq)));
+ running = cap_scale(running, arch_scale_cpu_capacity(NULL, cpu_of(rq)));
+
/*
* We know the time that has been used by interrupt since last update
* but we don't when. Let be pessimistic and assume that interrupt has
* happened just before the update. This is not so far from reality
* because interrupt will most probably wake up task and trig an update
- * of rq clock during which the metric si updated.
+ * of rq clock during which the metric is updated.
* We start to decay with normal context time and then we add the
* interrupt context time.
* We can safely remove running from rq->clock because
* rq->clock += delta with delta >= running
*/
- ret = ___update_load_sum(rq->clock - running, rq->cpu, &rq->avg_irq,
+ ret = ___update_load_sum(rq->clock - running, &rq->avg_irq,
0,
0,
0);
- ret += ___update_load_sum(rq->clock, rq->cpu, &rq->avg_irq,
+ ret += ___update_load_sum(rq->clock, &rq->avg_irq,
1,
1,
1);
diff --git a/kernel/sched/pelt.h b/kernel/sched/pelt.h
index 7e56b48..7489d5f 100644
--- a/kernel/sched/pelt.h
+++ b/kernel/sched/pelt.h
@@ -1,8 +1,9 @@
#ifdef CONFIG_SMP
+#include "sched-pelt.h"
-int __update_load_avg_blocked_se(u64 now, int cpu, struct sched_entity *se);
-int __update_load_avg_se(u64 now, int cpu, struct cfs_rq *cfs_rq, struct sched_entity *se);
-int __update_load_avg_cfs_rq(u64 now, int cpu, struct cfs_rq *cfs_rq);
+int __update_load_avg_blocked_se(u64 now, struct sched_entity *se);
+int __update_load_avg_se(u64 now, struct cfs_rq *cfs_rq, struct sched_entity *se);
+int __update_load_avg_cfs_rq(u64 now, struct cfs_rq *cfs_rq);
int update_rt_rq_load_avg(u64 now, struct rq *rq, int running);
int update_dl_rq_load_avg(u64 now, struct rq *rq, int running);
@@ -42,6 +43,101 @@ static inline void cfs_se_util_change(struct sched_avg *avg)
WRITE_ONCE(avg->util_est.enqueued, enqueued);
}
+/*
+ * The clock_pelt scales the time to reflect the effective amount of
+ * computation done during the running delta time but then sync back to
+ * clock_task when rq is idle.
+ *
+ *
+ * absolute time | 1| 2| 3| 4| 5| 6| 7| 8| 9|10|11|12|13|14|15|16
+ * @ max capacity ------******---------------******---------------
+ * @ half capacity ------************---------************---------
+ * clock pelt | 1| 2| 3| 4| 7| 8| 9| 10| 11|14|15|16
+ *
+ */
+static inline void update_rq_clock_pelt(struct rq *rq, s64 delta)
+{
+ if (unlikely(is_idle_task(rq->curr))) {
+ /* The rq is idle, we can sync to clock_task */
+ rq->clock_pelt = rq_clock_task(rq);
+ return;
+ }
+
+ /*
+ * When a rq runs at a lower compute capacity, it will need
+ * more time to do the same amount of work than at max
+ * capacity. In order to be invariant, we scale the delta to
+ * reflect how much work has been really done.
+ * Running longer results in stealing idle time that will
+ * disturb the load signal compared to max capacity. This
+ * stolen idle time will be automatically reflected when the
+ * rq will be idle and the clock will be synced with
+ * rq_clock_task.
+ */
+
+ /*
+ * Scale the elapsed time to reflect the real amount of
+ * computation
+ */
+ delta = cap_scale(delta, arch_scale_cpu_capacity(NULL, cpu_of(rq)));
+ delta = cap_scale(delta, arch_scale_freq_capacity(cpu_of(rq)));
+
+ rq->clock_pelt += delta;
+}
+
+/*
+ * When rq becomes idle, we have to check if it has lost idle time
+ * because it was fully busy. A rq is fully used when the /Sum util_sum
+ * is greater or equal to:
+ * (LOAD_AVG_MAX - 1024 + rq->cfs.avg.period_contrib) << SCHED_CAPACITY_SHIFT;
+ * For optimization and computing rounding purpose, we don't take into account
+ * the position in the current window (period_contrib) and we use the higher
+ * bound of util_sum to decide.
+ */
+static inline void update_idle_rq_clock_pelt(struct rq *rq)
+{
+ u32 divider = ((LOAD_AVG_MAX - 1024) << SCHED_CAPACITY_SHIFT) - LOAD_AVG_MAX;
+ u32 util_sum = rq->cfs.avg.util_sum;
+ util_sum += rq->avg_rt.util_sum;
+ util_sum += rq->avg_dl.util_sum;
+
+ /*
+ * Reflecting stolen time makes sense only if the idle
+ * phase would be present at max capacity. As soon as the
+ * utilization of a rq has reached the maximum value, it is
+ * considered as an always runnig rq without idle time to
+ * steal. This potential idle time is considered as lost in
+ * this case. We keep track of this lost idle time compare to
+ * rq's clock_task.
+ */
+ if (util_sum >= divider)
+ rq->lost_idle_time += rq_clock_task(rq) - rq->clock_pelt;
+}
+
+static inline u64 rq_clock_pelt(struct rq *rq)
+{
+ lockdep_assert_held(&rq->lock);
+ assert_clock_updated(rq);
+
+ return rq->clock_pelt - rq->lost_idle_time;
+}
+
+#ifdef CONFIG_CFS_BANDWIDTH
+/* rq->task_clock normalized against any time this cfs_rq has spent throttled */
+static inline u64 cfs_rq_clock_pelt(struct cfs_rq *cfs_rq)
+{
+ if (unlikely(cfs_rq->throttle_count))
+ return cfs_rq->throttled_clock_task - cfs_rq->throttled_clock_task_time;
+
+ return rq_clock_pelt(rq_of(cfs_rq)) - cfs_rq->throttled_clock_task_time;
+}
+#else
+static inline u64 cfs_rq_clock_pelt(struct cfs_rq *cfs_rq)
+{
+ return rq_clock_pelt(rq_of(cfs_rq));
+}
+#endif
+
#else
static inline int
@@ -67,6 +163,18 @@ update_irq_load_avg(struct rq *rq, u64 running)
{
return 0;
}
+
+static inline u64 rq_clock_pelt(struct rq *rq)
+{
+ return rq_clock_task(rq);
+}
+
+static inline void
+update_rq_clock_pelt(struct rq *rq, s64 delta) { }
+
+static inline void
+update_idle_rq_clock_pelt(struct rq *rq) { }
+
#endif
diff --git a/kernel/sched/psi.c b/kernel/sched/psi.c
new file mode 100644
index 0000000..1ff4904
--- /dev/null
+++ b/kernel/sched/psi.c
@@ -0,0 +1,1296 @@
+/*
+ * Pressure stall information for CPU, memory and IO
+ *
+ * Copyright (c) 2018 Facebook, Inc.
+ * Author: Johannes Weiner <hannes@cmpxchg.org>
+ *
+ * Polling support by Suren Baghdasaryan <surenb@google.com>
+ * Copyright (c) 2018 Google, Inc.
+ *
+ * When CPU, memory and IO are contended, tasks experience delays that
+ * reduce throughput and introduce latencies into the workload. Memory
+ * and IO contention, in addition, can cause a full loss of forward
+ * progress in which the CPU goes idle.
+ *
+ * This code aggregates individual task delays into resource pressure
+ * metrics that indicate problems with both workload health and
+ * resource utilization.
+ *
+ * Model
+ *
+ * The time in which a task can execute on a CPU is our baseline for
+ * productivity. Pressure expresses the amount of time in which this
+ * potential cannot be realized due to resource contention.
+ *
+ * This concept of productivity has two components: the workload and
+ * the CPU. To measure the impact of pressure on both, we define two
+ * contention states for a resource: SOME and FULL.
+ *
+ * In the SOME state of a given resource, one or more tasks are
+ * delayed on that resource. This affects the workload's ability to
+ * perform work, but the CPU may still be executing other tasks.
+ *
+ * In the FULL state of a given resource, all non-idle tasks are
+ * delayed on that resource such that nobody is advancing and the CPU
+ * goes idle. This leaves both workload and CPU unproductive.
+ *
+ * (Naturally, the FULL state doesn't exist for the CPU resource.)
+ *
+ * SOME = nr_delayed_tasks != 0
+ * FULL = nr_delayed_tasks != 0 && nr_running_tasks == 0
+ *
+ * The percentage of wallclock time spent in those compound stall
+ * states gives pressure numbers between 0 and 100 for each resource,
+ * where the SOME percentage indicates workload slowdowns and the FULL
+ * percentage indicates reduced CPU utilization:
+ *
+ * %SOME = time(SOME) / period
+ * %FULL = time(FULL) / period
+ *
+ * Multiple CPUs
+ *
+ * The more tasks and available CPUs there are, the more work can be
+ * performed concurrently. This means that the potential that can go
+ * unrealized due to resource contention *also* scales with non-idle
+ * tasks and CPUs.
+ *
+ * Consider a scenario where 257 number crunching tasks are trying to
+ * run concurrently on 256 CPUs. If we simply aggregated the task
+ * states, we would have to conclude a CPU SOME pressure number of
+ * 100%, since *somebody* is waiting on a runqueue at all
+ * times. However, that is clearly not the amount of contention the
+ * workload is experiencing: only one out of 256 possible exceution
+ * threads will be contended at any given time, or about 0.4%.
+ *
+ * Conversely, consider a scenario of 4 tasks and 4 CPUs where at any
+ * given time *one* of the tasks is delayed due to a lack of memory.
+ * Again, looking purely at the task state would yield a memory FULL
+ * pressure number of 0%, since *somebody* is always making forward
+ * progress. But again this wouldn't capture the amount of execution
+ * potential lost, which is 1 out of 4 CPUs, or 25%.
+ *
+ * To calculate wasted potential (pressure) with multiple processors,
+ * we have to base our calculation on the number of non-idle tasks in
+ * conjunction with the number of available CPUs, which is the number
+ * of potential execution threads. SOME becomes then the proportion of
+ * delayed tasks to possibe threads, and FULL is the share of possible
+ * threads that are unproductive due to delays:
+ *
+ * threads = min(nr_nonidle_tasks, nr_cpus)
+ * SOME = min(nr_delayed_tasks / threads, 1)
+ * FULL = (threads - min(nr_running_tasks, threads)) / threads
+ *
+ * For the 257 number crunchers on 256 CPUs, this yields:
+ *
+ * threads = min(257, 256)
+ * SOME = min(1 / 256, 1) = 0.4%
+ * FULL = (256 - min(257, 256)) / 256 = 0%
+ *
+ * For the 1 out of 4 memory-delayed tasks, this yields:
+ *
+ * threads = min(4, 4)
+ * SOME = min(1 / 4, 1) = 25%
+ * FULL = (4 - min(3, 4)) / 4 = 25%
+ *
+ * [ Substitute nr_cpus with 1, and you can see that it's a natural
+ * extension of the single-CPU model. ]
+ *
+ * Implementation
+ *
+ * To assess the precise time spent in each such state, we would have
+ * to freeze the system on task changes and start/stop the state
+ * clocks accordingly. Obviously that doesn't scale in practice.
+ *
+ * Because the scheduler aims to distribute the compute load evenly
+ * among the available CPUs, we can track task state locally to each
+ * CPU and, at much lower frequency, extrapolate the global state for
+ * the cumulative stall times and the running averages.
+ *
+ * For each runqueue, we track:
+ *
+ * tSOME[cpu] = time(nr_delayed_tasks[cpu] != 0)
+ * tFULL[cpu] = time(nr_delayed_tasks[cpu] && !nr_running_tasks[cpu])
+ * tNONIDLE[cpu] = time(nr_nonidle_tasks[cpu] != 0)
+ *
+ * and then periodically aggregate:
+ *
+ * tNONIDLE = sum(tNONIDLE[i])
+ *
+ * tSOME = sum(tSOME[i] * tNONIDLE[i]) / tNONIDLE
+ * tFULL = sum(tFULL[i] * tNONIDLE[i]) / tNONIDLE
+ *
+ * %SOME = tSOME / period
+ * %FULL = tFULL / period
+ *
+ * This gives us an approximation of pressure that is practical
+ * cost-wise, yet way more sensitive and accurate than periodic
+ * sampling of the aggregate task states would be.
+ */
+
+#include "../workqueue_internal.h"
+#include <linux/sched/loadavg.h>
+#include <linux/seq_file.h>
+#include <linux/proc_fs.h>
+#include <linux/seqlock.h>
+#include <linux/uaccess.h>
+#include <linux/cgroup.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/ctype.h>
+#include <linux/file.h>
+#include <linux/poll.h>
+#include <linux/psi.h>
+#include "sched.h"
+
+static int psi_bug __read_mostly;
+
+DEFINE_STATIC_KEY_FALSE(psi_disabled);
+DEFINE_STATIC_KEY_TRUE(psi_cgroups_enabled);
+
+#ifdef CONFIG_PSI_DEFAULT_DISABLED
+static bool psi_enable;
+#else
+static bool psi_enable = true;
+#endif
+static int __init setup_psi(char *str)
+{
+ return kstrtobool(str, &psi_enable) == 0;
+}
+__setup("psi=", setup_psi);
+
+/* Running averages - we need to be higher-res than loadavg */
+#define PSI_FREQ (2*HZ+1) /* 2 sec intervals */
+#define EXP_10s 1677 /* 1/exp(2s/10s) as fixed-point */
+#define EXP_60s 1981 /* 1/exp(2s/60s) */
+#define EXP_300s 2034 /* 1/exp(2s/300s) */
+
+/* PSI trigger definitions */
+#define WINDOW_MIN_US 500000 /* Min window size is 500ms */
+#define WINDOW_MAX_US 10000000 /* Max window size is 10s */
+#define UPDATES_PER_WINDOW 10 /* 10 updates per window */
+
+/* Sampling frequency in nanoseconds */
+static u64 psi_period __read_mostly;
+
+/* System-level pressure and stall tracking */
+static DEFINE_PER_CPU(struct psi_group_cpu, system_group_pcpu);
+static struct psi_group psi_system = {
+ .pcpu = &system_group_pcpu,
+};
+
+static void psi_avgs_work(struct work_struct *work);
+
+static void group_init(struct psi_group *group)
+{
+ int cpu;
+
+ for_each_possible_cpu(cpu)
+ seqcount_init(&per_cpu_ptr(group->pcpu, cpu)->seq);
+ group->avg_last_update = sched_clock();
+ group->avg_next_update = group->avg_last_update + psi_period;
+ INIT_DELAYED_WORK(&group->avgs_work, psi_avgs_work);
+ mutex_init(&group->avgs_lock);
+ /* Init trigger-related members */
+ atomic_set(&group->poll_scheduled, 0);
+ mutex_init(&group->trigger_lock);
+ INIT_LIST_HEAD(&group->triggers);
+ memset(group->nr_triggers, 0, sizeof(group->nr_triggers));
+ group->poll_states = 0;
+ group->poll_min_period = U32_MAX;
+ memset(group->polling_total, 0, sizeof(group->polling_total));
+ group->polling_next_update = ULLONG_MAX;
+ group->polling_until = 0;
+ rcu_assign_pointer(group->poll_kworker, NULL);
+}
+
+void __init psi_init(void)
+{
+ if (!psi_enable) {
+ static_branch_enable(&psi_disabled);
+ return;
+ }
+
+ if (!cgroup_psi_enabled())
+ static_branch_disable(&psi_cgroups_enabled);
+
+ psi_period = jiffies_to_nsecs(PSI_FREQ);
+ group_init(&psi_system);
+}
+
+static bool test_state(unsigned int *tasks, enum psi_states state)
+{
+ switch (state) {
+ case PSI_IO_SOME:
+ return tasks[NR_IOWAIT];
+ case PSI_IO_FULL:
+ return tasks[NR_IOWAIT] && !tasks[NR_RUNNING];
+ case PSI_MEM_SOME:
+ return tasks[NR_MEMSTALL];
+ case PSI_MEM_FULL:
+ return tasks[NR_MEMSTALL] && !tasks[NR_RUNNING];
+ case PSI_CPU_SOME:
+ return tasks[NR_RUNNING] > 1;
+ case PSI_NONIDLE:
+ return tasks[NR_IOWAIT] || tasks[NR_MEMSTALL] ||
+ tasks[NR_RUNNING];
+ default:
+ return false;
+ }
+}
+
+static void get_recent_times(struct psi_group *group, int cpu,
+ enum psi_aggregators aggregator, u32 *times,
+ u32 *pchanged_states)
+{
+ struct psi_group_cpu *groupc = per_cpu_ptr(group->pcpu, cpu);
+ u64 now, state_start;
+ enum psi_states s;
+ unsigned int seq;
+ u32 state_mask;
+
+ *pchanged_states = 0;
+
+ /* Snapshot a coherent view of the CPU state */
+ do {
+ seq = read_seqcount_begin(&groupc->seq);
+ now = cpu_clock(cpu);
+ memcpy(times, groupc->times, sizeof(groupc->times));
+ state_mask = groupc->state_mask;
+ state_start = groupc->state_start;
+ } while (read_seqcount_retry(&groupc->seq, seq));
+
+ /* Calculate state time deltas against the previous snapshot */
+ for (s = 0; s < NR_PSI_STATES; s++) {
+ u32 delta;
+ /*
+ * In addition to already concluded states, we also
+ * incorporate currently active states on the CPU,
+ * since states may last for many sampling periods.
+ *
+ * This way we keep our delta sampling buckets small
+ * (u32) and our reported pressure close to what's
+ * actually happening.
+ */
+ if (state_mask & (1 << s))
+ times[s] += now - state_start;
+
+ delta = times[s] - groupc->times_prev[aggregator][s];
+ groupc->times_prev[aggregator][s] = times[s];
+
+ times[s] = delta;
+ if (delta)
+ *pchanged_states |= (1 << s);
+ }
+}
+
+static void calc_avgs(unsigned long avg[3], int missed_periods,
+ u64 time, u64 period)
+{
+ unsigned long pct;
+
+ /* Fill in zeroes for periods of no activity */
+ if (missed_periods) {
+ avg[0] = calc_load_n(avg[0], EXP_10s, 0, missed_periods);
+ avg[1] = calc_load_n(avg[1], EXP_60s, 0, missed_periods);
+ avg[2] = calc_load_n(avg[2], EXP_300s, 0, missed_periods);
+ }
+
+ /* Sample the most recent active period */
+ pct = div_u64(time * 100, period);
+ pct *= FIXED_1;
+ avg[0] = calc_load(avg[0], EXP_10s, pct);
+ avg[1] = calc_load(avg[1], EXP_60s, pct);
+ avg[2] = calc_load(avg[2], EXP_300s, pct);
+}
+
+static void collect_percpu_times(struct psi_group *group,
+ enum psi_aggregators aggregator,
+ u32 *pchanged_states)
+{
+ u64 deltas[NR_PSI_STATES - 1] = { 0, };
+ unsigned long nonidle_total = 0;
+ u32 changed_states = 0;
+ int cpu;
+ int s;
+
+ /*
+ * Collect the per-cpu time buckets and average them into a
+ * single time sample that is normalized to wallclock time.
+ *
+ * For averaging, each CPU is weighted by its non-idle time in
+ * the sampling period. This eliminates artifacts from uneven
+ * loading, or even entirely idle CPUs.
+ */
+ for_each_possible_cpu(cpu) {
+ u32 times[NR_PSI_STATES];
+ u32 nonidle;
+ u32 cpu_changed_states;
+
+ get_recent_times(group, cpu, aggregator, times,
+ &cpu_changed_states);
+ changed_states |= cpu_changed_states;
+
+ nonidle = nsecs_to_jiffies(times[PSI_NONIDLE]);
+ nonidle_total += nonidle;
+
+ for (s = 0; s < PSI_NONIDLE; s++)
+ deltas[s] += (u64)times[s] * nonidle;
+ }
+
+ /*
+ * Integrate the sample into the running statistics that are
+ * reported to userspace: the cumulative stall times and the
+ * decaying averages.
+ *
+ * Pressure percentages are sampled at PSI_FREQ. We might be
+ * called more often when the user polls more frequently than
+ * that; we might be called less often when there is no task
+ * activity, thus no data, and clock ticks are sporadic. The
+ * below handles both.
+ */
+
+ /* total= */
+ for (s = 0; s < NR_PSI_STATES - 1; s++)
+ group->total[aggregator][s] +=
+ div_u64(deltas[s], max(nonidle_total, 1UL));
+
+ if (pchanged_states)
+ *pchanged_states = changed_states;
+}
+
+static u64 update_averages(struct psi_group *group, u64 now)
+{
+ unsigned long missed_periods = 0;
+ u64 expires, period;
+ u64 avg_next_update;
+ int s;
+
+ /* avgX= */
+ expires = group->avg_next_update;
+ if (now - expires >= psi_period)
+ missed_periods = div_u64(now - expires, psi_period);
+
+ /*
+ * The periodic clock tick can get delayed for various
+ * reasons, especially on loaded systems. To avoid clock
+ * drift, we schedule the clock in fixed psi_period intervals.
+ * But the deltas we sample out of the per-cpu buckets above
+ * are based on the actual time elapsing between clock ticks.
+ */
+ avg_next_update = expires + ((1 + missed_periods) * psi_period);
+ period = now - (group->avg_last_update + (missed_periods * psi_period));
+ group->avg_last_update = now;
+
+ for (s = 0; s < NR_PSI_STATES - 1; s++) {
+ u32 sample;
+
+ sample = group->total[PSI_AVGS][s] - group->avg_total[s];
+ /*
+ * Due to the lockless sampling of the time buckets,
+ * recorded time deltas can slip into the next period,
+ * which under full pressure can result in samples in
+ * excess of the period length.
+ *
+ * We don't want to report non-sensical pressures in
+ * excess of 100%, nor do we want to drop such events
+ * on the floor. Instead we punt any overage into the
+ * future until pressure subsides. By doing this we
+ * don't underreport the occurring pressure curve, we
+ * just report it delayed by one period length.
+ *
+ * The error isn't cumulative. As soon as another
+ * delta slips from a period P to P+1, by definition
+ * it frees up its time T in P.
+ */
+ if (sample > period)
+ sample = period;
+ group->avg_total[s] += sample;
+ calc_avgs(group->avg[s], missed_periods, sample, period);
+ }
+
+ return avg_next_update;
+}
+
+static void psi_avgs_work(struct work_struct *work)
+{
+ struct delayed_work *dwork;
+ struct psi_group *group;
+ u32 changed_states;
+ bool nonidle;
+ u64 now;
+
+ dwork = to_delayed_work(work);
+ group = container_of(dwork, struct psi_group, avgs_work);
+
+ mutex_lock(&group->avgs_lock);
+
+ now = sched_clock();
+
+ collect_percpu_times(group, PSI_AVGS, &changed_states);
+ nonidle = changed_states & (1 << PSI_NONIDLE);
+ /*
+ * If there is task activity, periodically fold the per-cpu
+ * times and feed samples into the running averages. If things
+ * are idle and there is no data to process, stop the clock.
+ * Once restarted, we'll catch up the running averages in one
+ * go - see calc_avgs() and missed_periods.
+ */
+ if (now >= group->avg_next_update)
+ group->avg_next_update = update_averages(group, now);
+
+ if (nonidle) {
+ schedule_delayed_work(dwork, nsecs_to_jiffies(
+ group->avg_next_update - now) + 1);
+ }
+
+ mutex_unlock(&group->avgs_lock);
+}
+
+/* Trigger tracking window manupulations */
+static void window_reset(struct psi_window *win, u64 now, u64 value,
+ u64 prev_growth)
+{
+ win->start_time = now;
+ win->start_value = value;
+ win->prev_growth = prev_growth;
+}
+
+/*
+ * PSI growth tracking window update and growth calculation routine.
+ *
+ * This approximates a sliding tracking window by interpolating
+ * partially elapsed windows using historical growth data from the
+ * previous intervals. This minimizes memory requirements (by not storing
+ * all the intermediate values in the previous window) and simplifies
+ * the calculations. It works well because PSI signal changes only in
+ * positive direction and over relatively small window sizes the growth
+ * is close to linear.
+ */
+static u64 window_update(struct psi_window *win, u64 now, u64 value)
+{
+ u64 elapsed;
+ u64 growth;
+
+ elapsed = now - win->start_time;
+ growth = value - win->start_value;
+ /*
+ * After each tracking window passes win->start_value and
+ * win->start_time get reset and win->prev_growth stores
+ * the average per-window growth of the previous window.
+ * win->prev_growth is then used to interpolate additional
+ * growth from the previous window assuming it was linear.
+ */
+ if (elapsed > win->size)
+ window_reset(win, now, value, growth);
+ else {
+ u32 remaining;
+
+ remaining = win->size - elapsed;
+ growth += div64_u64(win->prev_growth * remaining, win->size);
+ }
+
+ return growth;
+}
+
+static void init_triggers(struct psi_group *group, u64 now)
+{
+ struct psi_trigger *t;
+
+ list_for_each_entry(t, &group->triggers, node)
+ window_reset(&t->win, now,
+ group->total[PSI_POLL][t->state], 0);
+ memcpy(group->polling_total, group->total[PSI_POLL],
+ sizeof(group->polling_total));
+ group->polling_next_update = now + group->poll_min_period;
+}
+
+static u64 update_triggers(struct psi_group *group, u64 now)
+{
+ struct psi_trigger *t;
+ bool new_stall = false;
+ u64 *total = group->total[PSI_POLL];
+
+ /*
+ * On subsequent updates, calculate growth deltas and let
+ * watchers know when their specified thresholds are exceeded.
+ */
+ list_for_each_entry(t, &group->triggers, node) {
+ u64 growth;
+
+ /* Check for stall activity */
+ if (group->polling_total[t->state] == total[t->state])
+ continue;
+
+ /*
+ * Multiple triggers might be looking at the same state,
+ * remember to update group->polling_total[] once we've
+ * been through all of them. Also remember to extend the
+ * polling time if we see new stall activity.
+ */
+ new_stall = true;
+
+ /* Calculate growth since last update */
+ growth = window_update(&t->win, now, total[t->state]);
+ if (growth < t->threshold)
+ continue;
+
+ /* Limit event signaling to once per window */
+ if (now < t->last_event_time + t->win.size)
+ continue;
+
+ /* Generate an event */
+ if (cmpxchg(&t->event, 0, 1) == 0)
+ wake_up_interruptible(&t->event_wait);
+ t->last_event_time = now;
+ }
+
+ if (new_stall)
+ memcpy(group->polling_total, total,
+ sizeof(group->polling_total));
+
+ return now + group->poll_min_period;
+}
+
+/*
+ * Schedule polling if it's not already scheduled. It's safe to call even from
+ * hotpath because even though kthread_queue_delayed_work takes worker->lock
+ * spinlock that spinlock is never contended due to poll_scheduled atomic
+ * preventing such competition.
+ */
+static void psi_schedule_poll_work(struct psi_group *group, unsigned long delay)
+{
+ struct kthread_worker *kworker;
+
+ /* Do not reschedule if already scheduled */
+ if (atomic_cmpxchg(&group->poll_scheduled, 0, 1) != 0)
+ return;
+
+ rcu_read_lock();
+
+ kworker = rcu_dereference(group->poll_kworker);
+ /*
+ * kworker might be NULL in case psi_trigger_destroy races with
+ * psi_task_change (hotpath) which can't use locks
+ */
+ if (likely(kworker))
+ kthread_queue_delayed_work(kworker, &group->poll_work, delay);
+ else
+ atomic_set(&group->poll_scheduled, 0);
+
+ rcu_read_unlock();
+}
+
+static void psi_poll_work(struct kthread_work *work)
+{
+ struct kthread_delayed_work *dwork;
+ struct psi_group *group;
+ u32 changed_states;
+ u64 now;
+
+ dwork = container_of(work, struct kthread_delayed_work, work);
+ group = container_of(dwork, struct psi_group, poll_work);
+
+ atomic_set(&group->poll_scheduled, 0);
+
+ mutex_lock(&group->trigger_lock);
+
+ now = sched_clock();
+
+ collect_percpu_times(group, PSI_POLL, &changed_states);
+
+ if (changed_states & group->poll_states) {
+ /* Initialize trigger windows when entering polling mode */
+ if (now > group->polling_until)
+ init_triggers(group, now);
+
+ /*
+ * Keep the monitor active for at least the duration of the
+ * minimum tracking window as long as monitor states are
+ * changing.
+ */
+ group->polling_until = now +
+ group->poll_min_period * UPDATES_PER_WINDOW;
+ }
+
+ if (now > group->polling_until) {
+ group->polling_next_update = ULLONG_MAX;
+ goto out;
+ }
+
+ if (now >= group->polling_next_update)
+ group->polling_next_update = update_triggers(group, now);
+
+ psi_schedule_poll_work(group,
+ nsecs_to_jiffies(group->polling_next_update - now) + 1);
+
+out:
+ mutex_unlock(&group->trigger_lock);
+}
+
+static void record_times(struct psi_group_cpu *groupc, int cpu,
+ bool memstall_tick)
+{
+ u32 delta;
+ u64 now;
+
+ now = cpu_clock(cpu);
+ delta = now - groupc->state_start;
+ groupc->state_start = now;
+
+ if (groupc->state_mask & (1 << PSI_IO_SOME)) {
+ groupc->times[PSI_IO_SOME] += delta;
+ if (groupc->state_mask & (1 << PSI_IO_FULL))
+ groupc->times[PSI_IO_FULL] += delta;
+ }
+
+ if (groupc->state_mask & (1 << PSI_MEM_SOME)) {
+ groupc->times[PSI_MEM_SOME] += delta;
+ if (groupc->state_mask & (1 << PSI_MEM_FULL))
+ groupc->times[PSI_MEM_FULL] += delta;
+ else if (memstall_tick) {
+ u32 sample;
+ /*
+ * Since we care about lost potential, a
+ * memstall is FULL when there are no other
+ * working tasks, but also when the CPU is
+ * actively reclaiming and nothing productive
+ * could run even if it were runnable.
+ *
+ * When the timer tick sees a reclaiming CPU,
+ * regardless of runnable tasks, sample a FULL
+ * tick (or less if it hasn't been a full tick
+ * since the last state change).
+ */
+ sample = min(delta, (u32)jiffies_to_nsecs(1));
+ groupc->times[PSI_MEM_FULL] += sample;
+ }
+ }
+
+ if (groupc->state_mask & (1 << PSI_CPU_SOME))
+ groupc->times[PSI_CPU_SOME] += delta;
+
+ if (groupc->state_mask & (1 << PSI_NONIDLE))
+ groupc->times[PSI_NONIDLE] += delta;
+}
+
+static u32 psi_group_change(struct psi_group *group, int cpu,
+ unsigned int clear, unsigned int set)
+{
+ struct psi_group_cpu *groupc;
+ unsigned int t, m;
+ enum psi_states s;
+ u32 state_mask = 0;
+
+ groupc = per_cpu_ptr(group->pcpu, cpu);
+
+ /*
+ * First we assess the aggregate resource states this CPU's
+ * tasks have been in since the last change, and account any
+ * SOME and FULL time these may have resulted in.
+ *
+ * Then we update the task counts according to the state
+ * change requested through the @clear and @set bits.
+ */
+ write_seqcount_begin(&groupc->seq);
+
+ record_times(groupc, cpu, false);
+
+ for (t = 0, m = clear; m; m &= ~(1 << t), t++) {
+ if (!(m & (1 << t)))
+ continue;
+ if (groupc->tasks[t] == 0 && !psi_bug) {
+ printk_deferred(KERN_ERR "psi: task underflow! cpu=%d t=%d tasks=[%u %u %u] clear=%x set=%x\n",
+ cpu, t, groupc->tasks[0],
+ groupc->tasks[1], groupc->tasks[2],
+ clear, set);
+ psi_bug = 1;
+ }
+ groupc->tasks[t]--;
+ }
+
+ for (t = 0; set; set &= ~(1 << t), t++)
+ if (set & (1 << t))
+ groupc->tasks[t]++;
+
+ /* Calculate state mask representing active states */
+ for (s = 0; s < NR_PSI_STATES; s++) {
+ if (test_state(groupc->tasks, s))
+ state_mask |= (1 << s);
+ }
+ groupc->state_mask = state_mask;
+
+ write_seqcount_end(&groupc->seq);
+
+ return state_mask;
+}
+
+static struct psi_group *iterate_groups(struct task_struct *task, void **iter)
+{
+ if (*iter == &psi_system)
+ return NULL;
+
+#ifdef CONFIG_CGROUPS
+ if (static_branch_likely(&psi_cgroups_enabled)) {
+ struct cgroup *cgroup = NULL;
+
+ if (!*iter)
+ cgroup = task->cgroups->dfl_cgrp;
+ else
+ cgroup = cgroup_parent(*iter);
+
+ if (cgroup && cgroup_parent(cgroup)) {
+ *iter = cgroup;
+ return cgroup_psi(cgroup);
+ }
+ }
+#endif
+ *iter = &psi_system;
+ return &psi_system;
+}
+
+void psi_task_change(struct task_struct *task, int clear, int set)
+{
+ int cpu = task_cpu(task);
+ struct psi_group *group;
+ bool wake_clock = true;
+ void *iter = NULL;
+
+ if (!task->pid)
+ return;
+
+ if (((task->psi_flags & set) ||
+ (task->psi_flags & clear) != clear) &&
+ !psi_bug) {
+ printk_deferred(KERN_ERR "psi: inconsistent task state! task=%d:%s cpu=%d psi_flags=%x clear=%x set=%x\n",
+ task->pid, task->comm, cpu,
+ task->psi_flags, clear, set);
+ psi_bug = 1;
+ }
+
+ task->psi_flags &= ~clear;
+ task->psi_flags |= set;
+
+ /*
+ * Periodic aggregation shuts off if there is a period of no
+ * task changes, so we wake it back up if necessary. However,
+ * don't do this if the task change is the aggregation worker
+ * itself going to sleep, or we'll ping-pong forever.
+ */
+ if (unlikely((clear & TSK_RUNNING) &&
+ (task->flags & PF_WQ_WORKER) &&
+ wq_worker_last_func(task) == psi_avgs_work))
+ wake_clock = false;
+
+ while ((group = iterate_groups(task, &iter))) {
+ u32 state_mask = psi_group_change(group, cpu, clear, set);
+
+ if (state_mask & group->poll_states)
+ psi_schedule_poll_work(group, 1);
+
+ if (wake_clock && !delayed_work_pending(&group->avgs_work))
+ schedule_delayed_work(&group->avgs_work, PSI_FREQ);
+ }
+}
+
+void psi_memstall_tick(struct task_struct *task, int cpu)
+{
+ struct psi_group *group;
+ void *iter = NULL;
+
+ while ((group = iterate_groups(task, &iter))) {
+ struct psi_group_cpu *groupc;
+
+ groupc = per_cpu_ptr(group->pcpu, cpu);
+ write_seqcount_begin(&groupc->seq);
+ record_times(groupc, cpu, true);
+ write_seqcount_end(&groupc->seq);
+ }
+}
+
+/**
+ * psi_memstall_enter - mark the beginning of a memory stall section
+ * @flags: flags to handle nested sections
+ *
+ * Marks the calling task as being stalled due to a lack of memory,
+ * such as waiting for a refault or performing reclaim.
+ */
+void psi_memstall_enter(unsigned long *flags)
+{
+ struct rq_flags rf;
+ struct rq *rq;
+
+ if (static_branch_likely(&psi_disabled))
+ return;
+
+ *flags = current->flags & PF_MEMSTALL;
+ if (*flags)
+ return;
+ /*
+ * PF_MEMSTALL setting & accounting needs to be atomic wrt
+ * changes to the task's scheduling state, otherwise we can
+ * race with CPU migration.
+ */
+ rq = this_rq_lock_irq(&rf);
+
+ current->flags |= PF_MEMSTALL;
+ psi_task_change(current, 0, TSK_MEMSTALL);
+
+ rq_unlock_irq(rq, &rf);
+}
+
+/**
+ * psi_memstall_leave - mark the end of an memory stall section
+ * @flags: flags to handle nested memdelay sections
+ *
+ * Marks the calling task as no longer stalled due to lack of memory.
+ */
+void psi_memstall_leave(unsigned long *flags)
+{
+ struct rq_flags rf;
+ struct rq *rq;
+
+ if (static_branch_likely(&psi_disabled))
+ return;
+
+ if (*flags)
+ return;
+ /*
+ * PF_MEMSTALL clearing & accounting needs to be atomic wrt
+ * changes to the task's scheduling state, otherwise we could
+ * race with CPU migration.
+ */
+ rq = this_rq_lock_irq(&rf);
+
+ current->flags &= ~PF_MEMSTALL;
+ psi_task_change(current, TSK_MEMSTALL, 0);
+
+ rq_unlock_irq(rq, &rf);
+}
+
+#ifdef CONFIG_CGROUPS
+int psi_cgroup_alloc(struct cgroup *cgroup)
+{
+ if (static_branch_likely(&psi_disabled))
+ return 0;
+
+ cgroup->psi.pcpu = alloc_percpu(struct psi_group_cpu);
+ if (!cgroup->psi.pcpu)
+ return -ENOMEM;
+ group_init(&cgroup->psi);
+ return 0;
+}
+
+void psi_cgroup_free(struct cgroup *cgroup)
+{
+ if (static_branch_likely(&psi_disabled))
+ return;
+
+ cancel_delayed_work_sync(&cgroup->psi.avgs_work);
+ free_percpu(cgroup->psi.pcpu);
+ /* All triggers must be removed by now */
+ WARN_ONCE(cgroup->psi.poll_states, "psi: trigger leak\n");
+}
+
+/**
+ * cgroup_move_task - move task to a different cgroup
+ * @task: the task
+ * @to: the target css_set
+ *
+ * Move task to a new cgroup and safely migrate its associated stall
+ * state between the different groups.
+ *
+ * This function acquires the task's rq lock to lock out concurrent
+ * changes to the task's scheduling state and - in case the task is
+ * running - concurrent changes to its stall state.
+ */
+void cgroup_move_task(struct task_struct *task, struct css_set *to)
+{
+ unsigned int task_flags = 0;
+ struct rq_flags rf;
+ struct rq *rq;
+
+ if (static_branch_likely(&psi_disabled)) {
+ /*
+ * Lame to do this here, but the scheduler cannot be locked
+ * from the outside, so we move cgroups from inside sched/.
+ */
+ rcu_assign_pointer(task->cgroups, to);
+ return;
+ }
+
+ rq = task_rq_lock(task, &rf);
+
+ if (task_on_rq_queued(task))
+ task_flags = TSK_RUNNING;
+ else if (task->in_iowait)
+ task_flags = TSK_IOWAIT;
+
+ if (task->flags & PF_MEMSTALL)
+ task_flags |= TSK_MEMSTALL;
+
+ if (task_flags)
+ psi_task_change(task, task_flags, 0);
+
+ /* See comment above */
+ rcu_assign_pointer(task->cgroups, to);
+
+ if (task_flags)
+ psi_task_change(task, 0, task_flags);
+
+ task_rq_unlock(rq, task, &rf);
+}
+#endif /* CONFIG_CGROUPS */
+
+int psi_show(struct seq_file *m, struct psi_group *group, enum psi_res res)
+{
+ int full;
+ u64 now;
+
+ if (static_branch_likely(&psi_disabled))
+ return -EOPNOTSUPP;
+
+ /* Update averages before reporting them */
+ mutex_lock(&group->avgs_lock);
+ now = sched_clock();
+ collect_percpu_times(group, PSI_AVGS, NULL);
+ if (now >= group->avg_next_update)
+ group->avg_next_update = update_averages(group, now);
+ mutex_unlock(&group->avgs_lock);
+
+ for (full = 0; full < 2 - (res == PSI_CPU); full++) {
+ unsigned long avg[3];
+ u64 total;
+ int w;
+
+ for (w = 0; w < 3; w++)
+ avg[w] = group->avg[res * 2 + full][w];
+ total = div_u64(group->total[PSI_AVGS][res * 2 + full],
+ NSEC_PER_USEC);
+
+ seq_printf(m, "%s avg10=%lu.%02lu avg60=%lu.%02lu avg300=%lu.%02lu total=%llu\n",
+ full ? "full" : "some",
+ LOAD_INT(avg[0]), LOAD_FRAC(avg[0]),
+ LOAD_INT(avg[1]), LOAD_FRAC(avg[1]),
+ LOAD_INT(avg[2]), LOAD_FRAC(avg[2]),
+ total);
+ }
+
+ return 0;
+}
+
+static int psi_io_show(struct seq_file *m, void *v)
+{
+ return psi_show(m, &psi_system, PSI_IO);
+}
+
+static int psi_memory_show(struct seq_file *m, void *v)
+{
+ return psi_show(m, &psi_system, PSI_MEM);
+}
+
+static int psi_cpu_show(struct seq_file *m, void *v)
+{
+ return psi_show(m, &psi_system, PSI_CPU);
+}
+
+static int psi_io_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, psi_io_show, NULL);
+}
+
+static int psi_memory_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, psi_memory_show, NULL);
+}
+
+static int psi_cpu_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, psi_cpu_show, NULL);
+}
+
+struct psi_trigger *psi_trigger_create(struct psi_group *group,
+ char *buf, size_t nbytes, enum psi_res res)
+{
+ struct psi_trigger *t;
+ enum psi_states state;
+ u32 threshold_us;
+ u32 window_us;
+
+ if (static_branch_likely(&psi_disabled))
+ return ERR_PTR(-EOPNOTSUPP);
+
+ if (sscanf(buf, "some %u %u", &threshold_us, &window_us) == 2)
+ state = PSI_IO_SOME + res * 2;
+ else if (sscanf(buf, "full %u %u", &threshold_us, &window_us) == 2)
+ state = PSI_IO_FULL + res * 2;
+ else
+ return ERR_PTR(-EINVAL);
+
+ if (state >= PSI_NONIDLE)
+ return ERR_PTR(-EINVAL);
+
+ if (window_us < WINDOW_MIN_US ||
+ window_us > WINDOW_MAX_US)
+ return ERR_PTR(-EINVAL);
+
+ /* Check threshold */
+ if (threshold_us == 0 || threshold_us > window_us)
+ return ERR_PTR(-EINVAL);
+
+ t = kmalloc(sizeof(*t), GFP_KERNEL);
+ if (!t)
+ return ERR_PTR(-ENOMEM);
+
+ t->group = group;
+ t->state = state;
+ t->threshold = threshold_us * NSEC_PER_USEC;
+ t->win.size = window_us * NSEC_PER_USEC;
+ window_reset(&t->win, 0, 0, 0);
+
+ t->event = 0;
+ t->last_event_time = 0;
+ init_waitqueue_head(&t->event_wait);
+ kref_init(&t->refcount);
+
+ mutex_lock(&group->trigger_lock);
+
+ if (!rcu_access_pointer(group->poll_kworker)) {
+ struct sched_param param = {
+ .sched_priority = 1,
+ };
+ struct kthread_worker *kworker;
+
+ kworker = kthread_create_worker(0, "psimon");
+ if (IS_ERR(kworker)) {
+ kfree(t);
+ mutex_unlock(&group->trigger_lock);
+ return ERR_CAST(kworker);
+ }
+ sched_setscheduler_nocheck(kworker->task, SCHED_FIFO, ¶m);
+ kthread_init_delayed_work(&group->poll_work,
+ psi_poll_work);
+ rcu_assign_pointer(group->poll_kworker, kworker);
+ }
+
+ list_add(&t->node, &group->triggers);
+ group->poll_min_period = min(group->poll_min_period,
+ div_u64(t->win.size, UPDATES_PER_WINDOW));
+ group->nr_triggers[t->state]++;
+ group->poll_states |= (1 << t->state);
+
+ mutex_unlock(&group->trigger_lock);
+
+ return t;
+}
+
+static void psi_trigger_destroy(struct kref *ref)
+{
+ struct psi_trigger *t = container_of(ref, struct psi_trigger, refcount);
+ struct psi_group *group = t->group;
+ struct kthread_worker *kworker_to_destroy = NULL;
+
+ if (static_branch_likely(&psi_disabled))
+ return;
+
+ /*
+ * Wakeup waiters to stop polling. Can happen if cgroup is deleted
+ * from under a polling process.
+ */
+ wake_up_interruptible(&t->event_wait);
+
+ mutex_lock(&group->trigger_lock);
+
+ if (!list_empty(&t->node)) {
+ struct psi_trigger *tmp;
+ u64 period = ULLONG_MAX;
+
+ list_del(&t->node);
+ group->nr_triggers[t->state]--;
+ if (!group->nr_triggers[t->state])
+ group->poll_states &= ~(1 << t->state);
+ /* reset min update period for the remaining triggers */
+ list_for_each_entry(tmp, &group->triggers, node)
+ period = min(period, div_u64(tmp->win.size,
+ UPDATES_PER_WINDOW));
+ group->poll_min_period = period;
+ /* Destroy poll_kworker when the last trigger is destroyed */
+ if (group->poll_states == 0) {
+ group->polling_until = 0;
+ kworker_to_destroy = rcu_dereference_protected(
+ group->poll_kworker,
+ lockdep_is_held(&group->trigger_lock));
+ rcu_assign_pointer(group->poll_kworker, NULL);
+ }
+ }
+
+ mutex_unlock(&group->trigger_lock);
+
+ /*
+ * Wait for both *trigger_ptr from psi_trigger_replace and
+ * poll_kworker RCUs to complete their read-side critical sections
+ * before destroying the trigger and optionally the poll_kworker
+ */
+ synchronize_rcu();
+ /*
+ * Destroy the kworker after releasing trigger_lock to prevent a
+ * deadlock while waiting for psi_poll_work to acquire trigger_lock
+ */
+ if (kworker_to_destroy) {
+ /*
+ * After the RCU grace period has expired, the worker
+ * can no longer be found through group->poll_kworker.
+ * But it might have been already scheduled before
+ * that - deschedule it cleanly before destroying it.
+ */
+ kthread_cancel_delayed_work_sync(&group->poll_work);
+ atomic_set(&group->poll_scheduled, 0);
+
+ kthread_destroy_worker(kworker_to_destroy);
+ }
+ kfree(t);
+}
+
+void psi_trigger_replace(void **trigger_ptr, struct psi_trigger *new)
+{
+ struct psi_trigger *old = *trigger_ptr;
+
+ if (static_branch_likely(&psi_disabled))
+ return;
+
+ rcu_assign_pointer(*trigger_ptr, new);
+ if (old)
+ kref_put(&old->refcount, psi_trigger_destroy);
+}
+
+__poll_t psi_trigger_poll(void **trigger_ptr,
+ struct file *file, poll_table *wait)
+{
+ __poll_t ret = DEFAULT_POLLMASK;
+ struct psi_trigger *t;
+
+ if (static_branch_likely(&psi_disabled))
+ return DEFAULT_POLLMASK | EPOLLERR | EPOLLPRI;
+
+ rcu_read_lock();
+
+ t = rcu_dereference(*(void __rcu __force **)trigger_ptr);
+ if (!t) {
+ rcu_read_unlock();
+ return DEFAULT_POLLMASK | EPOLLERR | EPOLLPRI;
+ }
+ kref_get(&t->refcount);
+
+ rcu_read_unlock();
+
+ poll_wait(file, &t->event_wait, wait);
+
+ if (cmpxchg(&t->event, 1, 0) == 1)
+ ret |= EPOLLPRI;
+
+ kref_put(&t->refcount, psi_trigger_destroy);
+
+ return ret;
+}
+
+static ssize_t psi_write(struct file *file, const char __user *user_buf,
+ size_t nbytes, enum psi_res res)
+{
+ char buf[32];
+ size_t buf_size;
+ struct seq_file *seq;
+ struct psi_trigger *new;
+
+ if (static_branch_likely(&psi_disabled))
+ return -EOPNOTSUPP;
+
+ if (!nbytes)
+ return -EINVAL;
+
+ buf_size = min(nbytes, sizeof(buf));
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+
+ buf[buf_size - 1] = '\0';
+
+ new = psi_trigger_create(&psi_system, buf, nbytes, res);
+ if (IS_ERR(new))
+ return PTR_ERR(new);
+
+ seq = file->private_data;
+ /* Take seq->lock to protect seq->private from concurrent writes */
+ mutex_lock(&seq->lock);
+ psi_trigger_replace(&seq->private, new);
+ mutex_unlock(&seq->lock);
+
+ return nbytes;
+}
+
+static ssize_t psi_io_write(struct file *file, const char __user *user_buf,
+ size_t nbytes, loff_t *ppos)
+{
+ return psi_write(file, user_buf, nbytes, PSI_IO);
+}
+
+static ssize_t psi_memory_write(struct file *file, const char __user *user_buf,
+ size_t nbytes, loff_t *ppos)
+{
+ return psi_write(file, user_buf, nbytes, PSI_MEM);
+}
+
+static ssize_t psi_cpu_write(struct file *file, const char __user *user_buf,
+ size_t nbytes, loff_t *ppos)
+{
+ return psi_write(file, user_buf, nbytes, PSI_CPU);
+}
+
+static __poll_t psi_fop_poll(struct file *file, poll_table *wait)
+{
+ struct seq_file *seq = file->private_data;
+
+ return psi_trigger_poll(&seq->private, file, wait);
+}
+
+static int psi_fop_release(struct inode *inode, struct file *file)
+{
+ struct seq_file *seq = file->private_data;
+
+ psi_trigger_replace(&seq->private, NULL);
+ return single_release(inode, file);
+}
+
+static const struct file_operations psi_io_fops = {
+ .open = psi_io_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .write = psi_io_write,
+ .poll = psi_fop_poll,
+ .release = psi_fop_release,
+};
+
+static const struct file_operations psi_memory_fops = {
+ .open = psi_memory_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .write = psi_memory_write,
+ .poll = psi_fop_poll,
+ .release = psi_fop_release,
+};
+
+static const struct file_operations psi_cpu_fops = {
+ .open = psi_cpu_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .write = psi_cpu_write,
+ .poll = psi_fop_poll,
+ .release = psi_fop_release,
+};
+
+static int __init psi_proc_init(void)
+{
+ proc_mkdir("pressure", NULL);
+ proc_create("pressure/io", 0, NULL, &psi_io_fops);
+ proc_create("pressure/memory", 0, NULL, &psi_memory_fops);
+ proc_create("pressure/cpu", 0, NULL, &psi_cpu_fops);
+ return 0;
+}
+module_init(psi_proc_init);
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index b980cc9..24d8f6c 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -436,6 +436,45 @@ static inline int on_rt_rq(struct sched_rt_entity *rt_se)
return rt_se->on_rq;
}
+#ifdef CONFIG_UCLAMP_TASK
+/*
+ * Verify the fitness of task @p to run on @cpu taking into account the uclamp
+ * settings.
+ *
+ * This check is only important for heterogeneous systems where uclamp_min value
+ * is higher than the capacity of a @cpu. For non-heterogeneous system this
+ * function will always return true.
+ *
+ * The function will return true if the capacity of the @cpu is >= the
+ * uclamp_min and false otherwise.
+ *
+ * Note that uclamp_min will be clamped to uclamp_max if uclamp_min
+ * > uclamp_max.
+ */
+static inline bool rt_task_fits_capacity(struct task_struct *p, int cpu)
+{
+ unsigned int min_cap;
+ unsigned int max_cap;
+ unsigned int cpu_cap;
+
+ /* Only heterogeneous systems can benefit from this check */
+ if (!static_branch_unlikely(&sched_asym_cpucapacity))
+ return true;
+
+ min_cap = uclamp_eff_value(p, UCLAMP_MIN);
+ max_cap = uclamp_eff_value(p, UCLAMP_MAX);
+
+ cpu_cap = capacity_orig_of(cpu);
+
+ return cpu_cap >= min(min_cap, max_cap);
+}
+#else
+static inline bool rt_task_fits_capacity(struct task_struct *p, int cpu)
+{
+ return true;
+}
+#endif
+
#ifdef CONFIG_RT_GROUP_SCHED
static inline u64 sched_rt_runtime(struct rt_rq *rt_rq)
@@ -1329,6 +1368,8 @@ enqueue_task_rt(struct rq *rq, struct task_struct *p, int flags)
{
struct sched_rt_entity *rt_se = &p->rt;
+ schedtune_enqueue_task(p, cpu_of(rq));
+
if (flags & ENQUEUE_WAKEUP)
rt_se->timeout = 0;
@@ -1342,6 +1383,8 @@ static void dequeue_task_rt(struct rq *rq, struct task_struct *p, int flags)
{
struct sched_rt_entity *rt_se = &p->rt;
+ schedtune_dequeue_task(p, cpu_of(rq));
+
update_curr_rt(rq);
dequeue_rt_entity(rt_se, flags);
@@ -1386,10 +1429,12 @@ static void yield_task_rt(struct rq *rq)
static int find_lowest_rq(struct task_struct *task);
static int
-select_task_rq_rt(struct task_struct *p, int cpu, int sd_flag, int flags)
+select_task_rq_rt(struct task_struct *p, int cpu, int sd_flag, int flags,
+ int sibling_count_hint)
{
struct task_struct *curr;
struct rq *rq;
+ bool test;
/* For anything but wake ups, just return the task_cpu */
if (sd_flag != SD_BALANCE_WAKE && sd_flag != SD_BALANCE_FORK)
@@ -1421,13 +1466,26 @@ select_task_rq_rt(struct task_struct *p, int cpu, int sd_flag, int flags)
*
* This test is optimistic, if we get it wrong the load-balancer
* will have to sort it out.
+ *
+ * We take into account the capacity of the CPU to ensure it fits the
+ * requirement of the task - which is only important on heterogeneous
+ * systems like big.LITTLE.
*/
- if (curr && unlikely(rt_task(curr)) &&
- (curr->nr_cpus_allowed < 2 ||
- curr->prio <= p->prio)) {
+ test = curr &&
+ unlikely(rt_task(curr)) &&
+ (curr->nr_cpus_allowed < 2 || curr->prio <= p->prio);
+
+ if (test || !rt_task_fits_capacity(p, cpu)) {
int target = find_lowest_rq(p);
/*
+ * Bail out if we were forcing a migration to find a better
+ * fitting CPU but our search failed.
+ */
+ if (!test && target != -1 && !rt_task_fits_capacity(p, target))
+ goto out_unlock;
+
+ /*
* Don't bother moving it if the destination CPU is
* not running a lower priority task.
*/
@@ -1435,6 +1493,8 @@ select_task_rq_rt(struct task_struct *p, int cpu, int sd_flag, int flags)
p->prio < cpu_rq(target)->rt.highest_prio.curr)
cpu = target;
}
+
+out_unlock:
rcu_read_unlock();
out:
@@ -1455,8 +1515,8 @@ static void check_preempt_equal_prio(struct rq *rq, struct task_struct *p)
* p is migratable, so let's not schedule it and
* see if it is pushed or pulled somewhere else.
*/
- if (p->nr_cpus_allowed != 1
- && cpupri_find(&rq->rd->cpupri, p, NULL))
+ if (p->nr_cpus_allowed != 1 &&
+ cpupri_find(&rq->rd->cpupri, p, NULL))
return;
/*
@@ -1584,7 +1644,7 @@ pick_next_task_rt(struct rq *rq, struct task_struct *prev, struct rq_flags *rf)
* rt task
*/
if (rq->curr->sched_class != &rt_sched_class)
- update_rt_rq_load_avg(rq_clock_task(rq), rq, 0);
+ update_rt_rq_load_avg(rq_clock_pelt(rq), rq, 0);
return p;
}
@@ -1593,7 +1653,7 @@ static void put_prev_task_rt(struct rq *rq, struct task_struct *p)
{
update_curr_rt(rq);
- update_rt_rq_load_avg(rq_clock_task(rq), rq, 1);
+ update_rt_rq_load_avg(rq_clock_pelt(rq), rq, 1);
/*
* The previous task needs to be made eligible for pushing
@@ -1645,6 +1705,7 @@ static int find_lowest_rq(struct task_struct *task)
struct cpumask *lowest_mask = this_cpu_cpumask_var_ptr(local_cpu_mask);
int this_cpu = smp_processor_id();
int cpu = task_cpu(task);
+ int ret;
/* Make sure the mask is initialized first */
if (unlikely(!lowest_mask))
@@ -1653,7 +1714,22 @@ static int find_lowest_rq(struct task_struct *task)
if (task->nr_cpus_allowed == 1)
return -1; /* No other targets possible */
- if (!cpupri_find(&task_rq(task)->rd->cpupri, task, lowest_mask))
+ /*
+ * If we're on asym system ensure we consider the different capacities
+ * of the CPUs when searching for the lowest_mask.
+ */
+ if (static_branch_unlikely(&sched_asym_cpucapacity)) {
+
+ ret = cpupri_find_fitness(&task_rq(task)->rd->cpupri,
+ task, lowest_mask,
+ rt_task_fits_capacity);
+ } else {
+
+ ret = cpupri_find(&task_rq(task)->rd->cpupri,
+ task, lowest_mask);
+ }
+
+ if (!ret)
return -1; /* No targets found */
/*
@@ -2159,12 +2235,14 @@ static void pull_rt_task(struct rq *this_rq)
*/
static void task_woken_rt(struct rq *rq, struct task_struct *p)
{
- if (!task_running(rq, p) &&
- !test_tsk_need_resched(rq->curr) &&
- p->nr_cpus_allowed > 1 &&
- (dl_task(rq->curr) || rt_task(rq->curr)) &&
- (rq->curr->nr_cpus_allowed < 2 ||
- rq->curr->prio <= p->prio))
+ bool need_to_push = !task_running(rq, p) &&
+ !test_tsk_need_resched(rq->curr) &&
+ p->nr_cpus_allowed > 1 &&
+ (dl_task(rq->curr) || rt_task(rq->curr)) &&
+ (rq->curr->nr_cpus_allowed < 2 ||
+ rq->curr->prio <= p->prio);
+
+ if (need_to_push)
push_rt_tasks(rq);
}
@@ -2324,7 +2402,7 @@ static void task_tick_rt(struct rq *rq, struct task_struct *p, int queued)
struct sched_rt_entity *rt_se = &p->rt;
update_curr_rt(rq);
- update_rt_rq_load_avg(rq_clock_task(rq), rq, 1);
+ update_rt_rq_load_avg(rq_clock_pelt(rq), rq, 1);
watchdog(rq, p);
@@ -2404,6 +2482,10 @@ const struct sched_class rt_sched_class = {
.switched_to = switched_to_rt,
.update_curr = update_curr_rt,
+
+#ifdef CONFIG_UCLAMP_TASK
+ .uclamp_enabled = 1,
+#endif
};
#ifdef CONFIG_RT_GROUP_SCHED
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 55e6950..ec7a7ec 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -45,6 +45,7 @@
#include <linux/ctype.h>
#include <linux/debugfs.h>
#include <linux/delayacct.h>
+#include <linux/energy_model.h>
#include <linux/init_task.h>
#include <linux/kprobes.h>
#include <linux/kthread.h>
@@ -55,6 +56,7 @@
#include <linux/proc_fs.h>
#include <linux/prefetch.h>
#include <linux/profile.h>
+#include <linux/psi.h>
#include <linux/rcupdate_wait.h>
#include <linux/security.h>
#include <linux/stackprotector.h>
@@ -80,6 +82,8 @@
# define SCHED_WARN_ON(x) ({ (void)(x), 0; })
#endif
+#include "tune.h"
+
struct rq;
struct cpuidle_state;
@@ -323,6 +327,7 @@ extern bool dl_cpu_busy(unsigned int cpu);
#ifdef CONFIG_CGROUP_SCHED
#include <linux/cgroup.h>
+#include <linux/psi.h>
struct cfs_rq;
struct rt_rq;
@@ -392,6 +397,18 @@ struct task_group {
#endif
struct cfs_bandwidth cfs_bandwidth;
+
+#ifdef CONFIG_UCLAMP_TASK_GROUP
+ /* The two decimal precision [%] value requested from user-space */
+ unsigned int uclamp_pct[UCLAMP_CNT];
+ /* Clamp values requested for a task group */
+ struct uclamp_se uclamp_req[UCLAMP_CNT];
+ /* Effective clamp values used for a task group */
+ struct uclamp_se uclamp[UCLAMP_CNT];
+ /* Latency-sensitive flag used for a task group */
+ unsigned int latency_sensitive;
+#endif
+
};
#ifdef CONFIG_FAIR_GROUP_SCHED
@@ -701,6 +718,22 @@ static inline bool sched_asym_prefer(int a, int b)
return arch_asym_cpu_priority(a) > arch_asym_cpu_priority(b);
}
+struct perf_domain {
+ struct em_perf_domain *em_pd;
+ struct perf_domain *next;
+ struct rcu_head rcu;
+};
+
+struct max_cpu_capacity {
+ raw_spinlock_t lock;
+ unsigned long val;
+ int cpu;
+};
+
+/* Scheduling group status flags */
+#define SG_OVERLOAD 0x1 /* More than one runnable task on a CPU. */
+#define SG_OVERUTILIZED 0x2 /* One or more CPUs are over-utilized. */
+
/*
* We add the notion of a root-domain which will be used to define per-domain
* variables. Each exclusive cpuset essentially defines an island domain by
@@ -716,8 +749,15 @@ struct root_domain {
cpumask_var_t span;
cpumask_var_t online;
- /* Indicate more than one runnable task for any CPU */
- bool overload;
+ /*
+ * Indicate pullable load on at least one CPU, e.g:
+ * - More than one runnable task
+ * - Running task is misfit
+ */
+ int overload;
+
+ /* Indicate one or more cpus over-utilized (tipping point) */
+ int overutilized;
/*
* The bit corresponding to a CPU gets set here if such CPU has more
@@ -748,13 +788,27 @@ struct root_domain {
cpumask_var_t rto_mask;
struct cpupri cpupri;
- unsigned long max_cpu_capacity;
+ /* Maximum cpu capacity in the system. */
+ struct max_cpu_capacity max_cpu_capacity;
+
+ /*
+ * NULL-terminated list of performance domains intersecting with the
+ * CPUs of the rd. Protected by RCU.
+ */
+ struct perf_domain *pd;
+
+ /* Vendor fields. */
+ /* First cpu with maximum and minimum original capacity */
+ int max_cap_orig_cpu, min_cap_orig_cpu;
+ /* First cpu with mid capacity */
+ int mid_cap_orig_cpu;
};
extern struct root_domain def_root_domain;
extern struct mutex sched_domains_mutex;
extern void init_defrootdomain(void);
+extern void init_max_cpu_capacity(struct max_cpu_capacity *mcc);
extern int sched_init_domains(const struct cpumask *cpu_map);
extern void rq_attach_root(struct rq *rq, struct root_domain *rd);
extern void sched_get_rd(struct root_domain *rd);
@@ -765,6 +819,48 @@ extern void rto_push_irq_work_func(struct irq_work *work);
#endif
#endif /* CONFIG_SMP */
+#ifdef CONFIG_UCLAMP_TASK
+/*
+ * struct uclamp_bucket - Utilization clamp bucket
+ * @value: utilization clamp value for tasks on this clamp bucket
+ * @tasks: number of RUNNABLE tasks on this clamp bucket
+ *
+ * Keep track of how many tasks are RUNNABLE for a given utilization
+ * clamp value.
+ */
+struct uclamp_bucket {
+ unsigned long value : bits_per(SCHED_CAPACITY_SCALE);
+ unsigned long tasks : BITS_PER_LONG - bits_per(SCHED_CAPACITY_SCALE);
+};
+
+/*
+ * struct uclamp_rq - rq's utilization clamp
+ * @value: currently active clamp values for a rq
+ * @bucket: utilization clamp buckets affecting a rq
+ *
+ * Keep track of RUNNABLE tasks on a rq to aggregate their clamp values.
+ * A clamp value is affecting a rq when there is at least one task RUNNABLE
+ * (or actually running) with that value.
+ *
+ * There are up to UCLAMP_CNT possible different clamp values, currently there
+ * are only two: minimum utilization and maximum utilization.
+ *
+ * All utilization clamping values are MAX aggregated, since:
+ * - for util_min: we want to run the CPU at least at the max of the minimum
+ * utilization required by its currently RUNNABLE tasks.
+ * - for util_max: we want to allow the CPU to run up to the max of the
+ * maximum utilization allowed by its currently RUNNABLE tasks.
+ *
+ * Since on each system we expect only a limited number of different
+ * utilization clamp values (UCLAMP_BUCKETS), use a simple array to track
+ * the metrics required to compute all the per-rq utilization clamp values.
+ */
+struct uclamp_rq {
+ unsigned int value;
+ struct uclamp_bucket bucket[UCLAMP_BUCKETS];
+};
+#endif /* CONFIG_UCLAMP_TASK */
+
/*
* This is the main, per-CPU runqueue data structure.
*
@@ -803,6 +899,13 @@ struct rq {
unsigned long nr_load_updates;
u64 nr_switches;
+#ifdef CONFIG_UCLAMP_TASK
+ /* Utilization clamp values based on CPU's RUNNABLE tasks */
+ struct uclamp_rq uclamp[UCLAMP_CNT] ____cacheline_aligned;
+ unsigned int uclamp_flags;
+#define UCLAMP_FLAG_IDLE 0x01
+#endif
+
struct cfs_rq cfs;
struct rt_rq rt;
struct dl_rq dl;
@@ -829,7 +932,10 @@ struct rq {
unsigned int clock_update_flags;
u64 clock;
- u64 clock_task;
+ /* Ensure that all clocks are in the same cache line */
+ u64 clock_task ____cacheline_aligned;
+ u64 clock_pelt;
+ unsigned long lost_idle_time;
atomic_t nr_iowait;
@@ -844,6 +950,8 @@ struct rq {
unsigned char idle_balance;
+ unsigned long misfit_task_load;
+
/* For active balancing */
int active_balance;
int push_cpu;
@@ -914,9 +1022,26 @@ struct rq {
#ifdef CONFIG_CPU_IDLE
/* Must be inspected within a rcu lock section */
struct cpuidle_state *idle_state;
+ int idle_state_idx;
#endif
};
+#ifdef CONFIG_FAIR_GROUP_SCHED
+
+/* CPU runqueue to which this cfs_rq is attached */
+static inline struct rq *rq_of(struct cfs_rq *cfs_rq)
+{
+ return cfs_rq->rq;
+}
+
+#else
+
+static inline struct rq *rq_of(struct cfs_rq *cfs_rq)
+{
+ return container_of(cfs_rq, struct rq, cfs);
+}
+#endif
+
static inline int cpu_of(struct rq *rq)
{
#ifdef CONFIG_SMP
@@ -948,6 +1073,8 @@ DECLARE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues);
#define cpu_curr(cpu) (cpu_rq(cpu)->curr)
#define raw_rq() raw_cpu_ptr(&runqueues)
+extern void update_rq_clock(struct rq *rq);
+
static inline u64 __rq_clock_broken(struct rq *rq)
{
return READ_ONCE(rq->clock);
@@ -1066,6 +1193,98 @@ static inline void rq_repin_lock(struct rq *rq, struct rq_flags *rf)
#endif
}
+struct rq *__task_rq_lock(struct task_struct *p, struct rq_flags *rf)
+ __acquires(rq->lock);
+
+struct rq *task_rq_lock(struct task_struct *p, struct rq_flags *rf)
+ __acquires(p->pi_lock)
+ __acquires(rq->lock);
+
+static inline void __task_rq_unlock(struct rq *rq, struct rq_flags *rf)
+ __releases(rq->lock)
+{
+ rq_unpin_lock(rq, rf);
+ raw_spin_unlock(&rq->lock);
+}
+
+static inline void
+task_rq_unlock(struct rq *rq, struct task_struct *p, struct rq_flags *rf)
+ __releases(rq->lock)
+ __releases(p->pi_lock)
+{
+ rq_unpin_lock(rq, rf);
+ raw_spin_unlock(&rq->lock);
+ raw_spin_unlock_irqrestore(&p->pi_lock, rf->flags);
+}
+
+static inline void
+rq_lock_irqsave(struct rq *rq, struct rq_flags *rf)
+ __acquires(rq->lock)
+{
+ raw_spin_lock_irqsave(&rq->lock, rf->flags);
+ rq_pin_lock(rq, rf);
+}
+
+static inline void
+rq_lock_irq(struct rq *rq, struct rq_flags *rf)
+ __acquires(rq->lock)
+{
+ raw_spin_lock_irq(&rq->lock);
+ rq_pin_lock(rq, rf);
+}
+
+static inline void
+rq_lock(struct rq *rq, struct rq_flags *rf)
+ __acquires(rq->lock)
+{
+ raw_spin_lock(&rq->lock);
+ rq_pin_lock(rq, rf);
+}
+
+static inline void
+rq_relock(struct rq *rq, struct rq_flags *rf)
+ __acquires(rq->lock)
+{
+ raw_spin_lock(&rq->lock);
+ rq_repin_lock(rq, rf);
+}
+
+static inline void
+rq_unlock_irqrestore(struct rq *rq, struct rq_flags *rf)
+ __releases(rq->lock)
+{
+ rq_unpin_lock(rq, rf);
+ raw_spin_unlock_irqrestore(&rq->lock, rf->flags);
+}
+
+static inline void
+rq_unlock_irq(struct rq *rq, struct rq_flags *rf)
+ __releases(rq->lock)
+{
+ rq_unpin_lock(rq, rf);
+ raw_spin_unlock_irq(&rq->lock);
+}
+
+static inline void
+rq_unlock(struct rq *rq, struct rq_flags *rf)
+ __releases(rq->lock)
+{
+ rq_unpin_lock(rq, rf);
+ raw_spin_unlock(&rq->lock);
+}
+
+static inline struct rq *
+this_rq_lock_irq(struct rq_flags *rf)
+ __acquires(rq->lock)
+{
+ struct rq *rq;
+
+ local_irq_disable();
+ rq = this_rq();
+ rq_lock(rq, rf);
+ return rq;
+}
+
#ifdef CONFIG_NUMA
enum numa_topology_type {
NUMA_DIRECT,
@@ -1182,7 +1401,9 @@ DECLARE_PER_CPU(int, sd_llc_size);
DECLARE_PER_CPU(int, sd_llc_id);
DECLARE_PER_CPU(struct sched_domain_shared *, sd_llc_shared);
DECLARE_PER_CPU(struct sched_domain *, sd_numa);
-DECLARE_PER_CPU(struct sched_domain *, sd_asym);
+DECLARE_PER_CPU(struct sched_domain *, sd_asym_packing);
+DECLARE_PER_CPU(struct sched_domain *, sd_asym_cpucapacity);
+extern struct static_key_false sched_asym_cpucapacity;
struct sched_group_capacity {
atomic_t ref;
@@ -1192,6 +1413,7 @@ struct sched_group_capacity {
*/
unsigned long capacity;
unsigned long min_capacity; /* Min per-CPU capacity in group */
+ unsigned long max_capacity; /* Max per-CPU capacity in group */
unsigned long next_update;
int imbalance; /* XXX unrelated to capacity but shared group state */
@@ -1506,6 +1728,10 @@ extern const u32 sched_prio_to_wmult[40];
struct sched_class {
const struct sched_class *next;
+#ifdef CONFIG_UCLAMP_TASK
+ int uclamp_enabled;
+#endif
+
void (*enqueue_task) (struct rq *rq, struct task_struct *p, int flags);
void (*dequeue_task) (struct rq *rq, struct task_struct *p, int flags);
void (*yield_task) (struct rq *rq);
@@ -1527,7 +1753,8 @@ struct sched_class {
void (*put_prev_task)(struct rq *rq, struct task_struct *p);
#ifdef CONFIG_SMP
- int (*select_task_rq)(struct task_struct *p, int task_cpu, int sd_flag, int flags);
+ int (*select_task_rq)(struct task_struct *p, int task_cpu, int sd_flag, int flags,
+ int subling_count_hint);
void (*migrate_task_rq)(struct task_struct *p, int new_cpu);
void (*task_woken)(struct rq *this_rq, struct task_struct *task);
@@ -1615,6 +1842,17 @@ static inline struct cpuidle_state *idle_get_state(struct rq *rq)
return rq->idle_state;
}
+
+static inline void idle_set_state_idx(struct rq *rq, int idle_state_idx)
+{
+ rq->idle_state_idx = idle_state_idx;
+}
+
+static inline int idle_get_state_idx(struct rq *rq)
+{
+ WARN_ON(!rcu_read_lock_held());
+ return rq->idle_state_idx;
+}
#else
static inline void idle_set_state(struct rq *rq,
struct cpuidle_state *idle_state)
@@ -1625,6 +1863,15 @@ static inline struct cpuidle_state *idle_get_state(struct rq *rq)
{
return NULL;
}
+
+static inline void idle_set_state_idx(struct rq *rq, int idle_state_idx)
+{
+}
+
+static inline int idle_get_state_idx(struct rq *rq)
+{
+ return -1;
+}
#endif
extern void schedule_idle(void);
@@ -1698,8 +1945,8 @@ static inline void add_nr_running(struct rq *rq, unsigned count)
if (prev_nr < 2 && rq->nr_running >= 2) {
#ifdef CONFIG_SMP
- if (!rq->rd->overload)
- rq->rd->overload = true;
+ if (!READ_ONCE(rq->rd->overload))
+ WRITE_ONCE(rq->rd->overload, 1);
#endif
}
@@ -1713,8 +1960,6 @@ static inline void sub_nr_running(struct rq *rq, unsigned count)
sched_update_tick_dependency(rq);
}
-extern void update_rq_clock(struct rq *rq);
-
extern void activate_task(struct rq *rq, struct task_struct *p, int flags);
extern void deactivate_task(struct rq *rq, struct task_struct *p, int flags);
@@ -1758,106 +2003,14 @@ unsigned long arch_scale_freq_capacity(int cpu)
}
#endif
-#ifdef CONFIG_SMP
-#ifndef arch_scale_cpu_capacity
+#ifndef arch_scale_max_freq_capacity
+struct sched_domain;
static __always_inline
-unsigned long arch_scale_cpu_capacity(struct sched_domain *sd, int cpu)
-{
- if (sd && (sd->flags & SD_SHARE_CPUCAPACITY) && (sd->span_weight > 1))
- return sd->smt_gain / sd->span_weight;
-
- return SCHED_CAPACITY_SCALE;
-}
-#endif
-#else
-#ifndef arch_scale_cpu_capacity
-static __always_inline
-unsigned long arch_scale_cpu_capacity(void __always_unused *sd, int cpu)
+unsigned long arch_scale_max_freq_capacity(struct sched_domain *sd, int cpu)
{
return SCHED_CAPACITY_SCALE;
}
#endif
-#endif
-
-struct rq *__task_rq_lock(struct task_struct *p, struct rq_flags *rf)
- __acquires(rq->lock);
-
-struct rq *task_rq_lock(struct task_struct *p, struct rq_flags *rf)
- __acquires(p->pi_lock)
- __acquires(rq->lock);
-
-static inline void __task_rq_unlock(struct rq *rq, struct rq_flags *rf)
- __releases(rq->lock)
-{
- rq_unpin_lock(rq, rf);
- raw_spin_unlock(&rq->lock);
-}
-
-static inline void
-task_rq_unlock(struct rq *rq, struct task_struct *p, struct rq_flags *rf)
- __releases(rq->lock)
- __releases(p->pi_lock)
-{
- rq_unpin_lock(rq, rf);
- raw_spin_unlock(&rq->lock);
- raw_spin_unlock_irqrestore(&p->pi_lock, rf->flags);
-}
-
-static inline void
-rq_lock_irqsave(struct rq *rq, struct rq_flags *rf)
- __acquires(rq->lock)
-{
- raw_spin_lock_irqsave(&rq->lock, rf->flags);
- rq_pin_lock(rq, rf);
-}
-
-static inline void
-rq_lock_irq(struct rq *rq, struct rq_flags *rf)
- __acquires(rq->lock)
-{
- raw_spin_lock_irq(&rq->lock);
- rq_pin_lock(rq, rf);
-}
-
-static inline void
-rq_lock(struct rq *rq, struct rq_flags *rf)
- __acquires(rq->lock)
-{
- raw_spin_lock(&rq->lock);
- rq_pin_lock(rq, rf);
-}
-
-static inline void
-rq_relock(struct rq *rq, struct rq_flags *rf)
- __acquires(rq->lock)
-{
- raw_spin_lock(&rq->lock);
- rq_repin_lock(rq, rf);
-}
-
-static inline void
-rq_unlock_irqrestore(struct rq *rq, struct rq_flags *rf)
- __releases(rq->lock)
-{
- rq_unpin_lock(rq, rf);
- raw_spin_unlock_irqrestore(&rq->lock, rf->flags);
-}
-
-static inline void
-rq_unlock_irq(struct rq *rq, struct rq_flags *rf)
- __releases(rq->lock)
-{
- rq_unpin_lock(rq, rf);
- raw_spin_unlock_irq(&rq->lock);
-}
-
-static inline void
-rq_unlock(struct rq *rq, struct rq_flags *rf)
- __releases(rq->lock)
-{
- rq_unpin_lock(rq, rf);
- raw_spin_unlock(&rq->lock);
-}
#ifdef CONFIG_SMP
#ifdef CONFIG_PREEMPT
@@ -2182,6 +2335,45 @@ static inline void cpufreq_update_util(struct rq *rq, unsigned int flags)
static inline void cpufreq_update_util(struct rq *rq, unsigned int flags) {}
#endif /* CONFIG_CPU_FREQ */
+#ifdef CONFIG_UCLAMP_TASK
+unsigned long uclamp_eff_value(struct task_struct *p, enum uclamp_id clamp_id);
+
+static __always_inline
+unsigned long uclamp_rq_util_with(struct rq *rq, unsigned long util,
+ struct task_struct *p)
+{
+ unsigned long min_util = READ_ONCE(rq->uclamp[UCLAMP_MIN].value);
+ unsigned long max_util = READ_ONCE(rq->uclamp[UCLAMP_MAX].value);
+
+ if (p) {
+ min_util = max(min_util, uclamp_eff_value(p, UCLAMP_MIN));
+ max_util = max(max_util, uclamp_eff_value(p, UCLAMP_MAX));
+ }
+
+ /*
+ * Since CPU's {min,max}_util clamps are MAX aggregated considering
+ * RUNNABLE tasks with _different_ clamps, we can end up with an
+ * inversion. Fix it now when the clamps are applied.
+ */
+ if (unlikely(min_util >= max_util))
+ return min_util;
+
+ return clamp(util, min_util, max_util);
+}
+#else /* CONFIG_UCLAMP_TASK */
+static inline
+unsigned long uclamp_rq_util_with(struct rq *rq, unsigned long util,
+ struct task_struct *p)
+{
+ return util;
+}
+#endif /* CONFIG_UCLAMP_TASK */
+
+unsigned long task_util_est(struct task_struct *p);
+unsigned int uclamp_task(struct task_struct *p);
+bool uclamp_latency_sensitive(struct task_struct *p);
+bool uclamp_boosted(struct task_struct *p);
+
#ifdef arch_scale_freq_capacity
# ifndef arch_scale_freq_invariant
# define arch_scale_freq_invariant() true
@@ -2190,17 +2382,29 @@ static inline void cpufreq_update_util(struct rq *rq, unsigned int flags) {}
# define arch_scale_freq_invariant() false
#endif
-#ifdef CONFIG_CPU_FREQ_GOV_SCHEDUTIL
-static inline unsigned long cpu_bw_dl(struct rq *rq)
+#ifdef CONFIG_SMP
+static inline unsigned long capacity_orig_of(int cpu)
{
- return (rq->dl.running_bw * SCHED_CAPACITY_SCALE) >> BW_SHIFT;
+ return cpu_rq(cpu)->cpu_capacity_orig;
}
+#endif
-static inline unsigned long cpu_util_dl(struct rq *rq)
-{
- return READ_ONCE(rq->avg_dl.util_avg);
-}
+/**
+ * enum schedutil_type - CPU utilization type
+ * @FREQUENCY_UTIL: Utilization used to select frequency
+ * @ENERGY_UTIL: Utilization used during energy calculation
+ *
+ * The utilization signals of all scheduling classes (CFS/RT/DL) and IRQ time
+ * need to be aggregated differently depending on the usage made of them. This
+ * enum is used within schedutil_freq_util() to differentiate the types of
+ * utilization expected by the callers, and adjust the aggregation accordingly.
+ */
+enum schedutil_type {
+ FREQUENCY_UTIL,
+ ENERGY_UTIL,
+};
+#ifdef CONFIG_SMP
static inline unsigned long cpu_util_cfs(struct rq *rq)
{
unsigned long util = READ_ONCE(rq->cfs.avg.util_avg);
@@ -2212,12 +2416,37 @@ static inline unsigned long cpu_util_cfs(struct rq *rq)
return util;
}
+#endif
+
+#ifdef CONFIG_CPU_FREQ_GOV_SCHEDUTIL
+
+unsigned long schedutil_cpu_util(int cpu, unsigned long util_cfs,
+ unsigned long max, enum schedutil_type type,
+ struct task_struct *p);
+
+static inline unsigned long cpu_bw_dl(struct rq *rq)
+{
+ return (rq->dl.running_bw * SCHED_CAPACITY_SCALE) >> BW_SHIFT;
+}
+
+static inline unsigned long cpu_util_dl(struct rq *rq)
+{
+ return READ_ONCE(rq->avg_dl.util_avg);
+}
static inline unsigned long cpu_util_rt(struct rq *rq)
{
return READ_ONCE(rq->avg_rt.util_avg);
}
-#endif
+
+#else /* CONFIG_CPU_FREQ_GOV_SCHEDUTIL */
+static inline unsigned long schedutil_cpu_util(int cpu, unsigned long util_cfs,
+ unsigned long max, enum schedutil_type type,
+ struct task_struct *p)
+{
+ return 0;
+}
+#endif /* CONFIG_CPU_FREQ_GOV_SCHEDUTIL */
#ifdef CONFIG_HAVE_SCHED_AVG_IRQ
static inline unsigned long cpu_util_irq(struct rq *rq)
@@ -2246,3 +2475,13 @@ unsigned long scale_irq_capacity(unsigned long util, unsigned long irq, unsigned
return util;
}
#endif
+
+#if defined(CONFIG_ENERGY_MODEL) && defined(CONFIG_CPU_FREQ_GOV_SCHEDUTIL)
+#define perf_domain_span(pd) (to_cpumask(((pd)->em_pd->cpus)))
+#else
+#define perf_domain_span(pd) NULL
+#endif
+
+#ifdef CONFIG_SMP
+extern struct static_key_false sched_energy_present;
+#endif
diff --git a/kernel/sched/stats.h b/kernel/sched/stats.h
index 8aea199..aa0de24 100644
--- a/kernel/sched/stats.h
+++ b/kernel/sched/stats.h
@@ -55,6 +55,92 @@ static inline void rq_sched_info_depart (struct rq *rq, unsigned long long delt
# define schedstat_val_or_zero(var) 0
#endif /* CONFIG_SCHEDSTATS */
+#ifdef CONFIG_PSI
+/*
+ * PSI tracks state that persists across sleeps, such as iowaits and
+ * memory stalls. As a result, it has to distinguish between sleeps,
+ * where a task's runnable state changes, and requeues, where a task
+ * and its state are being moved between CPUs and runqueues.
+ */
+static inline void psi_enqueue(struct task_struct *p, bool wakeup)
+{
+ int clear = 0, set = TSK_RUNNING;
+
+ if (static_branch_likely(&psi_disabled))
+ return;
+
+ if (!wakeup || p->sched_psi_wake_requeue) {
+ if (p->flags & PF_MEMSTALL)
+ set |= TSK_MEMSTALL;
+ if (p->sched_psi_wake_requeue)
+ p->sched_psi_wake_requeue = 0;
+ } else {
+ if (p->in_iowait)
+ clear |= TSK_IOWAIT;
+ }
+
+ psi_task_change(p, clear, set);
+}
+
+static inline void psi_dequeue(struct task_struct *p, bool sleep)
+{
+ int clear = TSK_RUNNING, set = 0;
+
+ if (static_branch_likely(&psi_disabled))
+ return;
+
+ if (!sleep) {
+ if (p->flags & PF_MEMSTALL)
+ clear |= TSK_MEMSTALL;
+ } else {
+ if (p->in_iowait)
+ set |= TSK_IOWAIT;
+ }
+
+ psi_task_change(p, clear, set);
+}
+
+static inline void psi_ttwu_dequeue(struct task_struct *p)
+{
+ if (static_branch_likely(&psi_disabled))
+ return;
+ /*
+ * Is the task being migrated during a wakeup? Make sure to
+ * deregister its sleep-persistent psi states from the old
+ * queue, and let psi_enqueue() know it has to requeue.
+ */
+ if (unlikely(p->in_iowait || (p->flags & PF_MEMSTALL))) {
+ struct rq_flags rf;
+ struct rq *rq;
+ int clear = 0;
+
+ if (p->in_iowait)
+ clear |= TSK_IOWAIT;
+ if (p->flags & PF_MEMSTALL)
+ clear |= TSK_MEMSTALL;
+
+ rq = __task_rq_lock(p, &rf);
+ psi_task_change(p, clear, 0);
+ p->sched_psi_wake_requeue = 1;
+ __task_rq_unlock(rq, &rf);
+ }
+}
+
+static inline void psi_task_tick(struct rq *rq)
+{
+ if (static_branch_likely(&psi_disabled))
+ return;
+
+ if (unlikely(rq->curr->flags & PF_MEMSTALL))
+ psi_memstall_tick(rq->curr, cpu_of(rq));
+}
+#else /* CONFIG_PSI */
+static inline void psi_enqueue(struct task_struct *p, bool wakeup) {}
+static inline void psi_dequeue(struct task_struct *p, bool sleep) {}
+static inline void psi_ttwu_dequeue(struct task_struct *p) {}
+static inline void psi_task_tick(struct rq *rq) {}
+#endif /* CONFIG_PSI */
+
#ifdef CONFIG_SCHED_INFO
static inline void sched_info_reset_dequeued(struct task_struct *t)
{
diff --git a/kernel/sched/stop_task.c b/kernel/sched/stop_task.c
index c183b79..6446d61 100644
--- a/kernel/sched/stop_task.c
+++ b/kernel/sched/stop_task.c
@@ -11,7 +11,8 @@
#ifdef CONFIG_SMP
static int
-select_task_rq_stop(struct task_struct *p, int cpu, int sd_flag, int flags)
+select_task_rq_stop(struct task_struct *p, int cpu, int sd_flag, int flags,
+ int sibling_count_hint)
{
return task_cpu(p); /* stop tasks as never migrate */
}
diff --git a/kernel/sched/stubs.c b/kernel/sched/stubs.c
new file mode 100644
index 0000000..718eb69
--- /dev/null
+++ b/kernel/sched/stubs.c
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Symbols stubs needed for GKI compliance
+ */
+
+#include "sched.h"
+
+int sched_isolate_cpu(int cpu)
+{
+ return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(sched_isolate_cpu);
+
+int sched_unisolate_cpu_unlocked(int cpu)
+{
+ return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(sched_unisolate_cpu_unlocked);
+
+int sched_unisolate_cpu(int cpu)
+{
+ return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(sched_unisolate_cpu);
+
+int set_task_boost(int boost, u64 period)
+{
+ return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(set_task_boost);
diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c
index f58efa5..d4a4a80 100644
--- a/kernel/sched/topology.c
+++ b/kernel/sched/topology.c
@@ -201,6 +201,228 @@ sd_parent_degenerate(struct sched_domain *sd, struct sched_domain *parent)
return 1;
}
+DEFINE_STATIC_KEY_FALSE(sched_energy_present);
+#if defined(CONFIG_ENERGY_MODEL) && defined(CONFIG_CPU_FREQ_GOV_SCHEDUTIL)
+unsigned int sysctl_sched_energy_aware = 1;
+DEFINE_MUTEX(sched_energy_mutex);
+bool sched_energy_update;
+
+#ifdef CONFIG_PROC_SYSCTL
+int sched_energy_aware_handler(struct ctl_table *table, int write,
+ void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+ int ret, state;
+
+ if (write && !capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ ret = proc_dointvec_minmax(table, write, buffer, lenp, ppos);
+ if (!ret && write) {
+ state = static_branch_unlikely(&sched_energy_present);
+ if (state != sysctl_sched_energy_aware) {
+ mutex_lock(&sched_energy_mutex);
+ sched_energy_update = 1;
+ rebuild_sched_domains();
+ sched_energy_update = 0;
+ mutex_unlock(&sched_energy_mutex);
+ }
+ }
+
+ return ret;
+}
+#endif
+
+static void free_pd(struct perf_domain *pd)
+{
+ struct perf_domain *tmp;
+
+ while (pd) {
+ tmp = pd->next;
+ kfree(pd);
+ pd = tmp;
+ }
+}
+
+static struct perf_domain *find_pd(struct perf_domain *pd, int cpu)
+{
+ while (pd) {
+ if (cpumask_test_cpu(cpu, perf_domain_span(pd)))
+ return pd;
+ pd = pd->next;
+ }
+
+ return NULL;
+}
+
+static struct perf_domain *pd_init(int cpu)
+{
+ struct em_perf_domain *obj = em_cpu_get(cpu);
+ struct perf_domain *pd;
+
+ if (!obj) {
+ if (sched_debug())
+ pr_info("%s: no EM found for CPU%d\n", __func__, cpu);
+ return NULL;
+ }
+
+ pd = kzalloc(sizeof(*pd), GFP_KERNEL);
+ if (!pd)
+ return NULL;
+ pd->em_pd = obj;
+
+ return pd;
+}
+
+static void perf_domain_debug(const struct cpumask *cpu_map,
+ struct perf_domain *pd)
+{
+ if (!sched_debug() || !pd)
+ return;
+
+ printk(KERN_DEBUG "root_domain %*pbl:", cpumask_pr_args(cpu_map));
+
+ while (pd) {
+ printk(KERN_CONT " pd%d:{ cpus=%*pbl nr_cstate=%d }",
+ cpumask_first(perf_domain_span(pd)),
+ cpumask_pr_args(perf_domain_span(pd)),
+ em_pd_nr_cap_states(pd->em_pd));
+ pd = pd->next;
+ }
+
+ printk(KERN_CONT "\n");
+}
+
+static void destroy_perf_domain_rcu(struct rcu_head *rp)
+{
+ struct perf_domain *pd;
+
+ pd = container_of(rp, struct perf_domain, rcu);
+ free_pd(pd);
+}
+
+static void sched_energy_set(bool has_eas)
+{
+ if (!has_eas && static_branch_unlikely(&sched_energy_present)) {
+ if (sched_debug())
+ pr_info("%s: stopping EAS\n", __func__);
+ static_branch_disable_cpuslocked(&sched_energy_present);
+ } else if (has_eas && !static_branch_unlikely(&sched_energy_present)) {
+ if (sched_debug())
+ pr_info("%s: starting EAS\n", __func__);
+ static_branch_enable_cpuslocked(&sched_energy_present);
+ }
+}
+
+/*
+ * EAS can be used on a root domain if it meets all the following conditions:
+ * 1. an Energy Model (EM) is available;
+ * 2. the SD_ASYM_CPUCAPACITY flag is set in the sched_domain hierarchy.
+ * 3. the EM complexity is low enough to keep scheduling overheads low;
+ * 4. schedutil is driving the frequency of all CPUs of the rd;
+ *
+ * The complexity of the Energy Model is defined as:
+ *
+ * C = nr_pd * (nr_cpus + nr_cs)
+ *
+ * with parameters defined as:
+ * - nr_pd: the number of performance domains
+ * - nr_cpus: the number of CPUs
+ * - nr_cs: the sum of the number of capacity states of all performance
+ * domains (for example, on a system with 2 performance domains,
+ * with 10 capacity states each, nr_cs = 2 * 10 = 20).
+ *
+ * It is generally not a good idea to use such a model in the wake-up path on
+ * very complex platforms because of the associated scheduling overheads. The
+ * arbitrary constraint below prevents that. It makes EAS usable up to 16 CPUs
+ * with per-CPU DVFS and less than 8 capacity states each, for example.
+ */
+#define EM_MAX_COMPLEXITY 2048
+
+extern struct cpufreq_governor schedutil_gov;
+static bool build_perf_domains(const struct cpumask *cpu_map)
+{
+ int i, nr_pd = 0, nr_cs = 0, nr_cpus = cpumask_weight(cpu_map);
+ struct perf_domain *pd = NULL, *tmp;
+ int cpu = cpumask_first(cpu_map);
+ struct root_domain *rd = cpu_rq(cpu)->rd;
+ struct cpufreq_policy *policy;
+ struct cpufreq_governor *gov;
+
+ if (!sysctl_sched_energy_aware)
+ goto free;
+
+ /* EAS is enabled for asymmetric CPU capacity topologies. */
+ if (!per_cpu(sd_asym_cpucapacity, cpu)) {
+ if (sched_debug()) {
+ pr_info("rd %*pbl: CPUs do not have asymmetric capacities\n",
+ cpumask_pr_args(cpu_map));
+ }
+ goto free;
+ }
+
+ for_each_cpu(i, cpu_map) {
+ /* Skip already covered CPUs. */
+ if (find_pd(pd, i))
+ continue;
+
+ /* Do not attempt EAS if schedutil is not being used. */
+ policy = cpufreq_cpu_get(i);
+ if (!policy)
+ goto free;
+ gov = policy->governor;
+ cpufreq_cpu_put(policy);
+ if (gov != &schedutil_gov) {
+ if (rd->pd)
+ pr_warn("rd %*pbl: Disabling EAS, schedutil is mandatory\n",
+ cpumask_pr_args(cpu_map));
+ goto free;
+ }
+
+ /* Create the new pd and add it to the local list. */
+ tmp = pd_init(i);
+ if (!tmp)
+ goto free;
+ tmp->next = pd;
+ pd = tmp;
+
+ /*
+ * Count performance domains and capacity states for the
+ * complexity check.
+ */
+ nr_pd++;
+ nr_cs += em_pd_nr_cap_states(pd->em_pd);
+ }
+
+ /* Bail out if the Energy Model complexity is too high. */
+ if (nr_pd * (nr_cs + nr_cpus) > EM_MAX_COMPLEXITY) {
+ WARN(1, "rd %*pbl: Failed to start EAS, EM complexity is too high\n",
+ cpumask_pr_args(cpu_map));
+ goto free;
+ }
+
+ perf_domain_debug(cpu_map, pd);
+
+ /* Attach the new list of performance domains to the root domain. */
+ tmp = rd->pd;
+ rcu_assign_pointer(rd->pd, pd);
+ if (tmp)
+ call_rcu(&tmp->rcu, destroy_perf_domain_rcu);
+
+ return !!pd;
+
+free:
+ free_pd(pd);
+ tmp = rd->pd;
+ rcu_assign_pointer(rd->pd, NULL);
+ if (tmp)
+ call_rcu(&tmp->rcu, destroy_perf_domain_rcu);
+
+ return false;
+}
+#else
+static void free_pd(struct perf_domain *pd) { }
+#endif /* CONFIG_ENERGY_MODEL && CONFIG_CPU_FREQ_GOV_SCHEDUTIL*/
+
static void free_rootdomain(struct rcu_head *rcu)
{
struct root_domain *rd = container_of(rcu, struct root_domain, rcu);
@@ -211,6 +433,7 @@ static void free_rootdomain(struct rcu_head *rcu)
free_cpumask_var(rd->rto_mask);
free_cpumask_var(rd->online);
free_cpumask_var(rd->span);
+ free_pd(rd->pd);
kfree(rd);
}
@@ -287,6 +510,9 @@ static int init_rootdomain(struct root_domain *rd)
if (cpupri_init(&rd->cpupri) != 0)
goto free_cpudl;
+
+ init_max_cpu_capacity(&rd->max_cpu_capacity);
+
return 0;
free_cpudl:
@@ -397,7 +623,9 @@ DEFINE_PER_CPU(int, sd_llc_size);
DEFINE_PER_CPU(int, sd_llc_id);
DEFINE_PER_CPU(struct sched_domain_shared *, sd_llc_shared);
DEFINE_PER_CPU(struct sched_domain *, sd_numa);
-DEFINE_PER_CPU(struct sched_domain *, sd_asym);
+DEFINE_PER_CPU(struct sched_domain *, sd_asym_packing);
+DEFINE_PER_CPU(struct sched_domain *, sd_asym_cpucapacity);
+DEFINE_STATIC_KEY_FALSE(sched_asym_cpucapacity);
static void update_top_cache_domain(int cpu)
{
@@ -422,7 +650,10 @@ static void update_top_cache_domain(int cpu)
rcu_assign_pointer(per_cpu(sd_numa, cpu), sd);
sd = highest_flag_domain(cpu, SD_ASYM_PACKING);
- rcu_assign_pointer(per_cpu(sd_asym, cpu), sd);
+ rcu_assign_pointer(per_cpu(sd_asym_packing, cpu), sd);
+
+ sd = lowest_flag_domain(cpu, SD_ASYM_CPUCAPACITY);
+ rcu_assign_pointer(per_cpu(sd_asym_cpucapacity, cpu), sd);
}
/*
@@ -692,6 +923,7 @@ static void init_overlap_sched_group(struct sched_domain *sd,
sg_span = sched_group_span(sg);
sg->sgc->capacity = SCHED_CAPACITY_SCALE * cpumask_weight(sg_span);
sg->sgc->min_capacity = SCHED_CAPACITY_SCALE;
+ sg->sgc->max_capacity = SCHED_CAPACITY_SCALE;
}
static int
@@ -851,6 +1083,7 @@ static struct sched_group *get_group(int cpu, struct sd_data *sdd)
sg->sgc->capacity = SCHED_CAPACITY_SCALE * cpumask_weight(sched_group_span(sg));
sg->sgc->min_capacity = SCHED_CAPACITY_SCALE;
+ sg->sgc->max_capacity = SCHED_CAPACITY_SCALE;
return sg;
}
@@ -1061,7 +1294,6 @@ static struct cpumask ***sched_domains_numa_masks;
* SD_SHARE_PKG_RESOURCES - describes shared caches
* SD_NUMA - describes NUMA topologies
* SD_SHARE_POWERDOMAIN - describes shared power domain
- * SD_ASYM_CPUCAPACITY - describes mixed capacity topologies
*
* Odd one out, which beside describing the topology has a quirk also
* prescribes the desired behaviour that goes along with it:
@@ -1073,13 +1305,12 @@ static struct cpumask ***sched_domains_numa_masks;
SD_SHARE_PKG_RESOURCES | \
SD_NUMA | \
SD_ASYM_PACKING | \
- SD_ASYM_CPUCAPACITY | \
SD_SHARE_POWERDOMAIN)
static struct sched_domain *
sd_init(struct sched_domain_topology_level *tl,
const struct cpumask *cpu_map,
- struct sched_domain *child, int cpu)
+ struct sched_domain *child, int dflags, int cpu)
{
struct sd_data *sdd = &tl->data;
struct sched_domain *sd = *per_cpu_ptr(sdd->sd, cpu);
@@ -1100,6 +1331,9 @@ sd_init(struct sched_domain_topology_level *tl,
"wrong sd_flags in topology description\n"))
sd_flags &= TOPOLOGY_SD_FLAGS;
+ /* Apply detected topology flags */
+ sd_flags |= dflags;
+
*sd = (struct sched_domain){
.min_interval = sd_weight,
.max_interval = 2*sd_weight,
@@ -1122,7 +1356,7 @@ sd_init(struct sched_domain_topology_level *tl,
| 0*SD_SHARE_CPUCAPACITY
| 0*SD_SHARE_PKG_RESOURCES
| 0*SD_SERIALIZE
- | 0*SD_PREFER_SIBLING
+ | 1*SD_PREFER_SIBLING
| 0*SD_NUMA
| sd_flags
,
@@ -1148,17 +1382,21 @@ sd_init(struct sched_domain_topology_level *tl,
if (sd->flags & SD_ASYM_CPUCAPACITY) {
struct sched_domain *t = sd;
+ /*
+ * Don't attempt to spread across CPUs of different capacities.
+ */
+ if (sd->child)
+ sd->child->flags &= ~SD_PREFER_SIBLING;
+
for_each_lower_domain(t)
t->flags |= SD_BALANCE_WAKE;
}
if (sd->flags & SD_SHARE_CPUCAPACITY) {
- sd->flags |= SD_PREFER_SIBLING;
sd->imbalance_pct = 110;
sd->smt_gain = 1178; /* ~15% */
} else if (sd->flags & SD_SHARE_PKG_RESOURCES) {
- sd->flags |= SD_PREFER_SIBLING;
sd->imbalance_pct = 117;
sd->cache_nice_tries = 1;
sd->busy_idx = 2;
@@ -1169,6 +1407,7 @@ sd_init(struct sched_domain_topology_level *tl,
sd->busy_idx = 3;
sd->idle_idx = 2;
+ sd->flags &= ~SD_PREFER_SIBLING;
sd->flags |= SD_SERIALIZE;
if (sched_domains_numa_distance[tl->numa_level] > RECLAIM_DISTANCE) {
sd->flags &= ~(SD_BALANCE_EXEC |
@@ -1178,7 +1417,6 @@ sd_init(struct sched_domain_topology_level *tl,
#endif
} else {
- sd->flags |= SD_PREFER_SIBLING;
sd->cache_nice_tries = 1;
sd->busy_idx = 2;
sd->idle_idx = 1;
@@ -1604,9 +1842,9 @@ static void __sdt_free(const struct cpumask *cpu_map)
static struct sched_domain *build_sched_domain(struct sched_domain_topology_level *tl,
const struct cpumask *cpu_map, struct sched_domain_attr *attr,
- struct sched_domain *child, int cpu)
+ struct sched_domain *child, int dflags, int cpu)
{
- struct sched_domain *sd = sd_init(tl, cpu_map, child, cpu);
+ struct sched_domain *sd = sd_init(tl, cpu_map, child, dflags, cpu);
if (child) {
sd->level = child->level + 1;
@@ -1633,6 +1871,65 @@ static struct sched_domain *build_sched_domain(struct sched_domain_topology_leve
}
/*
+ * Find the sched_domain_topology_level where all CPU capacities are visible
+ * for all CPUs.
+ */
+static struct sched_domain_topology_level
+*asym_cpu_capacity_level(const struct cpumask *cpu_map)
+{
+ int i, j, asym_level = 0;
+ bool asym = false;
+ struct sched_domain_topology_level *tl, *asym_tl = NULL;
+ unsigned long cap;
+
+ /* Is there any asymmetry? */
+ cap = arch_scale_cpu_capacity(NULL, cpumask_first(cpu_map));
+
+ for_each_cpu(i, cpu_map) {
+ if (arch_scale_cpu_capacity(NULL, i) != cap) {
+ asym = true;
+ break;
+ }
+ }
+
+ if (!asym)
+ return NULL;
+
+ /*
+ * Examine topology from all CPU's point of views to detect the lowest
+ * sched_domain_topology_level where a highest capacity CPU is visible
+ * to everyone.
+ */
+ for_each_cpu(i, cpu_map) {
+ unsigned long max_capacity = arch_scale_cpu_capacity(NULL, i);
+ int tl_id = 0;
+
+ for_each_sd_topology(tl) {
+ if (tl_id < asym_level)
+ goto next_level;
+
+ for_each_cpu_and(j, tl->mask(i), cpu_map) {
+ unsigned long capacity;
+
+ capacity = arch_scale_cpu_capacity(NULL, j);
+
+ if (capacity <= max_capacity)
+ continue;
+
+ max_capacity = capacity;
+ asym_level = tl_id;
+ asym_tl = tl;
+ }
+next_level:
+ tl_id++;
+ }
+ }
+
+ return asym_tl;
+}
+
+
+/*
* Build sched domains for a given set of CPUs and attach the sched domains
* to the individual CPUs
*/
@@ -1642,20 +1939,31 @@ build_sched_domains(const struct cpumask *cpu_map, struct sched_domain_attr *att
enum s_alloc alloc_state;
struct sched_domain *sd;
struct s_data d;
- struct rq *rq = NULL;
int i, ret = -ENOMEM;
+ struct sched_domain_topology_level *tl_asym;
+ bool has_asym = false;
alloc_state = __visit_domain_allocation_hell(&d, cpu_map);
if (alloc_state != sa_rootdomain)
goto error;
+ tl_asym = asym_cpu_capacity_level(cpu_map);
+
/* Set up domains for CPUs specified by the cpu_map: */
for_each_cpu(i, cpu_map) {
struct sched_domain_topology_level *tl;
sd = NULL;
for_each_sd_topology(tl) {
- sd = build_sched_domain(tl, cpu_map, attr, sd, i);
+ int dflags = 0;
+
+ if (tl == tl_asym) {
+ dflags |= SD_ASYM_CPUCAPACITY;
+ has_asym = true;
+ }
+
+ sd = build_sched_domain(tl, cpu_map, attr, sd, dflags, i);
+
if (tl == sched_domain_topology)
*per_cpu_ptr(d.sd, i) = sd;
if (tl->flags & SDTL_OVERLAP)
@@ -1693,21 +2001,13 @@ build_sched_domains(const struct cpumask *cpu_map, struct sched_domain_attr *att
/* Attach the domains */
rcu_read_lock();
for_each_cpu(i, cpu_map) {
- rq = cpu_rq(i);
sd = *per_cpu_ptr(d.sd, i);
-
- /* Use READ_ONCE()/WRITE_ONCE() to avoid load/store tearing: */
- if (rq->cpu_capacity_orig > READ_ONCE(d.rd->max_cpu_capacity))
- WRITE_ONCE(d.rd->max_cpu_capacity, rq->cpu_capacity_orig);
-
cpu_attach_domain(sd, d.rd, i);
}
rcu_read_unlock();
- if (rq && sched_debug_enabled) {
- pr_info("root domain span: %*pbl (max cpu_capacity = %lu)\n",
- cpumask_pr_args(cpu_map), rq->rd->max_cpu_capacity);
- }
+ if (has_asym)
+ static_branch_inc_cpuslocked(&sched_asym_cpucapacity);
ret = 0;
error:
@@ -1798,8 +2098,12 @@ int sched_init_domains(const struct cpumask *cpu_map)
*/
static void detach_destroy_domains(const struct cpumask *cpu_map)
{
+ unsigned int cpu = cpumask_any(cpu_map);
int i;
+ if (rcu_access_pointer(per_cpu(sd_asym_cpucapacity, cpu)))
+ static_branch_dec_cpuslocked(&sched_asym_cpucapacity);
+
rcu_read_lock();
for_each_cpu(i, cpu_map)
cpu_attach_domain(NULL, &def_root_domain, i);
@@ -1852,6 +2156,7 @@ static int dattrs_equal(struct sched_domain_attr *cur, int idx_cur,
void partition_sched_domains(int ndoms_new, cpumask_var_t doms_new[],
struct sched_domain_attr *dattr_new)
{
+ bool __maybe_unused has_eas = false;
int i, j, n;
int new_topology;
@@ -1879,8 +2184,8 @@ void partition_sched_domains(int ndoms_new, cpumask_var_t doms_new[],
/* Destroy deleted domains: */
for (i = 0; i < ndoms_cur; i++) {
for (j = 0; j < n && !new_topology; j++) {
- if (cpumask_equal(doms_cur[i], doms_new[j])
- && dattrs_equal(dattr_cur, i, dattr_new, j))
+ if (cpumask_equal(doms_cur[i], doms_new[j]) &&
+ dattrs_equal(dattr_cur, i, dattr_new, j))
goto match1;
}
/* No match - a current sched domain not in new doms_new[] */
@@ -1900,8 +2205,8 @@ void partition_sched_domains(int ndoms_new, cpumask_var_t doms_new[],
/* Build new domains: */
for (i = 0; i < ndoms_new; i++) {
for (j = 0; j < n && !new_topology; j++) {
- if (cpumask_equal(doms_new[i], doms_cur[j])
- && dattrs_equal(dattr_new, i, dattr_cur, j))
+ if (cpumask_equal(doms_new[i], doms_cur[j]) &&
+ dattrs_equal(dattr_new, i, dattr_cur, j))
goto match2;
}
/* No match - add a new doms_new */
@@ -1910,6 +2215,24 @@ void partition_sched_domains(int ndoms_new, cpumask_var_t doms_new[],
;
}
+#if defined(CONFIG_ENERGY_MODEL) && defined(CONFIG_CPU_FREQ_GOV_SCHEDUTIL)
+ /* Build perf. domains: */
+ for (i = 0; i < ndoms_new; i++) {
+ for (j = 0; j < n && !sched_energy_update; j++) {
+ if (cpumask_equal(doms_new[i], doms_cur[j]) &&
+ cpu_rq(cpumask_first(doms_cur[j]))->rd->pd) {
+ has_eas = true;
+ goto match3;
+ }
+ }
+ /* No match - add perf. domains for a new rd */
+ has_eas |= build_perf_domains(doms_new[i]);
+match3:
+ ;
+ }
+ sched_energy_set(has_eas);
+#endif
+
/* Remember the new sched domains: */
if (doms_cur != &fallback_doms)
free_sched_domains(doms_cur, ndoms_cur);
diff --git a/kernel/sched/tune.c b/kernel/sched/tune.c
new file mode 100644
index 0000000..f46b511
--- /dev/null
+++ b/kernel/sched/tune.c
@@ -0,0 +1,693 @@
+#include <linux/cgroup.h>
+#include <linux/err.h>
+#include <linux/kernel.h>
+#include <linux/percpu.h>
+#include <linux/printk.h>
+#include <linux/rcupdate.h>
+#include <linux/slab.h>
+
+#include <trace/events/sched.h>
+
+#include "sched.h"
+
+bool schedtune_initialized = false;
+extern struct reciprocal_value schedtune_spc_rdiv;
+
+/* We hold schedtune boost in effect for at least this long */
+#define SCHEDTUNE_BOOST_HOLD_NS 50000000ULL
+
+/*
+ * EAS scheduler tunables for task groups.
+ *
+ * When CGroup support is enabled, we have to synchronize two different
+ * paths:
+ * - slow path: where CGroups are created/updated/removed
+ * - fast path: where tasks in a CGroups are accounted
+ *
+ * The slow path tracks (a limited number of) CGroups and maps each on a
+ * "boost_group" index. The fastpath accounts tasks currently RUNNABLE on each
+ * "boost_group".
+ *
+ * Once a new CGroup is created, a boost group idx is assigned and the
+ * corresponding "boost_group" marked as valid on each CPU.
+ * Once a CGroup is release, the corresponding "boost_group" is marked as
+ * invalid on each CPU. The CPU boost value (boost_max) is aggregated by
+ * considering only valid boost_groups with a non null tasks counter.
+ *
+ * .:: Locking strategy
+ *
+ * The fast path uses a spin lock for each CPU boost_group which protects the
+ * tasks counter.
+ *
+ * The "valid" and "boost" values of each CPU boost_group is instead
+ * protected by the RCU lock provided by the CGroups callbacks. Thus, only the
+ * slow path can access and modify the boost_group attribtues of each CPU.
+ * The fast path will catch up the most updated values at the next scheduling
+ * event (i.e. enqueue/dequeue).
+ *
+ * |
+ * SLOW PATH | FAST PATH
+ * CGroup add/update/remove | Scheduler enqueue/dequeue events
+ * |
+ * |
+ * | DEFINE_PER_CPU(struct boost_groups)
+ * | +--------------+----+---+----+----+
+ * | | idle | | | | |
+ * | | boost_max | | | | |
+ * | +---->lock | | | | |
+ * struct schedtune allocated_groups | | | group[ ] | | | | |
+ * +------------------------------+ +-------+ | | +--+---------+-+----+---+----+----+
+ * | idx | | | | | | valid |
+ * | boots / prefer_idle | | | | | | boost |
+ * | perf_{boost/constraints}_idx | <---------+(*) | | | | tasks | <------------+
+ * | css | +-------+ | | +---------+ |
+ * +-+----------------------------+ | | | | | | |
+ * ^ | | | | | | |
+ * | +-------+ | | +---------+ |
+ * | | | | | | | |
+ * | | | | | | | |
+ * | +-------+ | | +---------+ |
+ * | zmalloc | | | | | | |
+ * | | | | | | | |
+ * | +-------+ | | +---------+ |
+ * + BOOSTGROUPS_COUNT | | BOOSTGROUPS_COUNT |
+ * schedtune_boostgroup_init() | + |
+ * | schedtune_{en,de}queue_task() |
+ * | +
+ * | schedtune_tasks_update()
+ * |
+ */
+
+/* SchdTune tunables for a group of tasks */
+struct schedtune {
+ /* SchedTune CGroup subsystem */
+ struct cgroup_subsys_state css;
+
+ /* Boost group allocated ID */
+ int idx;
+
+ /* Boost value for tasks on that SchedTune CGroup */
+ int boost;
+
+ /* Hint to bias scheduling of tasks on that SchedTune CGroup
+ * towards idle CPUs */
+ int prefer_idle;
+};
+
+static inline struct schedtune *css_st(struct cgroup_subsys_state *css)
+{
+ return css ? container_of(css, struct schedtune, css) : NULL;
+}
+
+static inline struct schedtune *task_schedtune(struct task_struct *tsk)
+{
+ return css_st(task_css(tsk, schedtune_cgrp_id));
+}
+
+static inline struct schedtune *parent_st(struct schedtune *st)
+{
+ return css_st(st->css.parent);
+}
+
+/*
+ * SchedTune root control group
+ * The root control group is used to defined a system-wide boosting tuning,
+ * which is applied to all tasks in the system.
+ * Task specific boost tuning could be specified by creating and
+ * configuring a child control group under the root one.
+ * By default, system-wide boosting is disabled, i.e. no boosting is applied
+ * to tasks which are not into a child control group.
+ */
+static struct schedtune
+root_schedtune = {
+ .boost = 0,
+ .prefer_idle = 0,
+};
+
+/*
+ * Maximum number of boost groups to support
+ * When per-task boosting is used we still allow only limited number of
+ * boost groups for two main reasons:
+ * 1. on a real system we usually have only few classes of workloads which
+ * make sense to boost with different values (e.g. background vs foreground
+ * tasks, interactive vs low-priority tasks)
+ * 2. a limited number allows for a simpler and more memory/time efficient
+ * implementation especially for the computation of the per-CPU boost
+ * value
+ */
+#define BOOSTGROUPS_COUNT 6
+
+/* Array of configured boostgroups */
+static struct schedtune *allocated_group[BOOSTGROUPS_COUNT] = {
+ &root_schedtune,
+ NULL,
+};
+
+/* SchedTune boost groups
+ * Keep track of all the boost groups which impact on CPU, for example when a
+ * CPU has two RUNNABLE tasks belonging to two different boost groups and thus
+ * likely with different boost values.
+ * Since on each system we expect only a limited number of boost groups, here
+ * we use a simple array to keep track of the metrics required to compute the
+ * maximum per-CPU boosting value.
+ */
+struct boost_groups {
+ /* Maximum boost value for all RUNNABLE tasks on a CPU */
+ int boost_max;
+ u64 boost_ts;
+ struct {
+ /* True when this boost group maps an actual cgroup */
+ bool valid;
+ /* The boost for tasks on that boost group */
+ int boost;
+ /* Count of RUNNABLE tasks on that boost group */
+ unsigned tasks;
+ /* Timestamp of boost activation */
+ u64 ts;
+ } group[BOOSTGROUPS_COUNT];
+ /* CPU's boost group locking */
+ raw_spinlock_t lock;
+};
+
+/* Boost groups affecting each CPU in the system */
+DEFINE_PER_CPU(struct boost_groups, cpu_boost_groups);
+
+static inline bool schedtune_boost_timeout(u64 now, u64 ts)
+{
+ return ((now - ts) > SCHEDTUNE_BOOST_HOLD_NS);
+}
+
+static inline bool
+schedtune_boost_group_active(int idx, struct boost_groups* bg, u64 now)
+{
+ if (bg->group[idx].tasks)
+ return true;
+
+ return !schedtune_boost_timeout(now, bg->group[idx].ts);
+}
+
+static void
+schedtune_cpu_update(int cpu, u64 now)
+{
+ struct boost_groups *bg = &per_cpu(cpu_boost_groups, cpu);
+ int boost_max;
+ u64 boost_ts;
+ int idx;
+
+ /* The root boost group is always active */
+ boost_max = bg->group[0].boost;
+ boost_ts = now;
+ for (idx = 1; idx < BOOSTGROUPS_COUNT; ++idx) {
+
+ /* Ignore non boostgroups not mapping a cgroup */
+ if (!bg->group[idx].valid)
+ continue;
+
+ /*
+ * A boost group affects a CPU only if it has
+ * RUNNABLE tasks on that CPU or it has hold
+ * in effect from a previous task.
+ */
+ if (!schedtune_boost_group_active(idx, bg, now))
+ continue;
+
+ /* This boost group is active */
+ if (boost_max > bg->group[idx].boost)
+ continue;
+
+ boost_max = bg->group[idx].boost;
+ boost_ts = bg->group[idx].ts;
+ }
+
+ /* Ensures boost_max is non-negative when all cgroup boost values
+ * are neagtive. Avoids under-accounting of cpu capacity which may cause
+ * task stacking and frequency spikes.*/
+ boost_max = max(boost_max, 0);
+ bg->boost_max = boost_max;
+ bg->boost_ts = boost_ts;
+}
+
+static int
+schedtune_boostgroup_update(int idx, int boost)
+{
+ struct boost_groups *bg;
+ int cur_boost_max;
+ int old_boost;
+ int cpu;
+ u64 now;
+
+ /* Update per CPU boost groups */
+ for_each_possible_cpu(cpu) {
+ bg = &per_cpu(cpu_boost_groups, cpu);
+
+ /* CGroups are never associated to non active cgroups */
+ BUG_ON(!bg->group[idx].valid);
+
+ /*
+ * Keep track of current boost values to compute the per CPU
+ * maximum only when it has been affected by the new value of
+ * the updated boost group
+ */
+ cur_boost_max = bg->boost_max;
+ old_boost = bg->group[idx].boost;
+
+ /* Update the boost value of this boost group */
+ bg->group[idx].boost = boost;
+
+ /* Check if this update increase current max */
+ now = sched_clock_cpu(cpu);
+ if (boost > cur_boost_max &&
+ schedtune_boost_group_active(idx, bg, now)) {
+ bg->boost_max = boost;
+ bg->boost_ts = bg->group[idx].ts;
+
+ trace_sched_tune_boostgroup_update(cpu, 1, bg->boost_max);
+ continue;
+ }
+
+ /* Check if this update has decreased current max */
+ if (cur_boost_max == old_boost && old_boost > boost) {
+ schedtune_cpu_update(cpu, now);
+ trace_sched_tune_boostgroup_update(cpu, -1, bg->boost_max);
+ continue;
+ }
+
+ trace_sched_tune_boostgroup_update(cpu, 0, bg->boost_max);
+ }
+
+ return 0;
+}
+
+#define ENQUEUE_TASK 1
+#define DEQUEUE_TASK -1
+
+static inline bool
+schedtune_update_timestamp(struct task_struct *p)
+{
+ if (sched_feat(SCHEDTUNE_BOOST_HOLD_ALL))
+ return true;
+
+ return task_has_rt_policy(p);
+}
+
+static inline void
+schedtune_tasks_update(struct task_struct *p, int cpu, int idx, int task_count)
+{
+ struct boost_groups *bg = &per_cpu(cpu_boost_groups, cpu);
+ int tasks = bg->group[idx].tasks + task_count;
+
+ /* Update boosted tasks count while avoiding to make it negative */
+ bg->group[idx].tasks = max(0, tasks);
+
+ /* Update timeout on enqueue */
+ if (task_count > 0) {
+ u64 now = sched_clock_cpu(cpu);
+
+ if (schedtune_update_timestamp(p))
+ bg->group[idx].ts = now;
+
+ /* Boost group activation or deactivation on that RQ */
+ if (bg->group[idx].tasks == 1)
+ schedtune_cpu_update(cpu, now);
+ }
+
+ trace_sched_tune_tasks_update(p, cpu, tasks, idx,
+ bg->group[idx].boost, bg->boost_max,
+ bg->group[idx].ts);
+}
+
+/*
+ * NOTE: This function must be called while holding the lock on the CPU RQ
+ */
+void schedtune_enqueue_task(struct task_struct *p, int cpu)
+{
+ struct boost_groups *bg = &per_cpu(cpu_boost_groups, cpu);
+ unsigned long irq_flags;
+ struct schedtune *st;
+ int idx;
+
+ if (unlikely(!schedtune_initialized))
+ return;
+
+ /*
+ * Boost group accouting is protected by a per-cpu lock and requires
+ * interrupt to be disabled to avoid race conditions for example on
+ * do_exit()::cgroup_exit() and task migration.
+ */
+ raw_spin_lock_irqsave(&bg->lock, irq_flags);
+ rcu_read_lock();
+
+ st = task_schedtune(p);
+ idx = st->idx;
+
+ schedtune_tasks_update(p, cpu, idx, ENQUEUE_TASK);
+
+ rcu_read_unlock();
+ raw_spin_unlock_irqrestore(&bg->lock, irq_flags);
+}
+
+int schedtune_can_attach(struct cgroup_taskset *tset)
+{
+ struct task_struct *task;
+ struct cgroup_subsys_state *css;
+ struct boost_groups *bg;
+ struct rq_flags rq_flags;
+ unsigned int cpu;
+ struct rq *rq;
+ int src_bg; /* Source boost group index */
+ int dst_bg; /* Destination boost group index */
+ int tasks;
+ u64 now;
+
+ if (unlikely(!schedtune_initialized))
+ return 0;
+
+
+ cgroup_taskset_for_each(task, css, tset) {
+
+ /*
+ * Lock the CPU's RQ the task is enqueued to avoid race
+ * conditions with migration code while the task is being
+ * accounted
+ */
+ rq = task_rq_lock(task, &rq_flags);
+
+ if (!task->on_rq) {
+ task_rq_unlock(rq, task, &rq_flags);
+ continue;
+ }
+
+ /*
+ * Boost group accouting is protected by a per-cpu lock and requires
+ * interrupt to be disabled to avoid race conditions on...
+ */
+ cpu = cpu_of(rq);
+ bg = &per_cpu(cpu_boost_groups, cpu);
+ raw_spin_lock(&bg->lock);
+
+ dst_bg = css_st(css)->idx;
+ src_bg = task_schedtune(task)->idx;
+
+ /*
+ * Current task is not changing boostgroup, which can
+ * happen when the new hierarchy is in use.
+ */
+ if (unlikely(dst_bg == src_bg)) {
+ raw_spin_unlock(&bg->lock);
+ task_rq_unlock(rq, task, &rq_flags);
+ continue;
+ }
+
+ /*
+ * This is the case of a RUNNABLE task which is switching its
+ * current boost group.
+ */
+
+ /* Move task from src to dst boost group */
+ tasks = bg->group[src_bg].tasks - 1;
+ bg->group[src_bg].tasks = max(0, tasks);
+ bg->group[dst_bg].tasks += 1;
+
+ /* Update boost hold start for this group */
+ now = sched_clock_cpu(cpu);
+ bg->group[dst_bg].ts = now;
+
+ /* Force boost group re-evaluation at next boost check */
+ bg->boost_ts = now - SCHEDTUNE_BOOST_HOLD_NS;
+
+ raw_spin_unlock(&bg->lock);
+ task_rq_unlock(rq, task, &rq_flags);
+ }
+
+ return 0;
+}
+
+void schedtune_cancel_attach(struct cgroup_taskset *tset)
+{
+ /* This can happen only if SchedTune controller is mounted with
+ * other hierarchies ane one of them fails. Since usually SchedTune is
+ * mouted on its own hierarcy, for the time being we do not implement
+ * a proper rollback mechanism */
+ WARN(1, "SchedTune cancel attach not implemented");
+}
+
+/*
+ * NOTE: This function must be called while holding the lock on the CPU RQ
+ */
+void schedtune_dequeue_task(struct task_struct *p, int cpu)
+{
+ struct boost_groups *bg = &per_cpu(cpu_boost_groups, cpu);
+ unsigned long irq_flags;
+ struct schedtune *st;
+ int idx;
+
+ if (unlikely(!schedtune_initialized))
+ return;
+
+ /*
+ * Boost group accouting is protected by a per-cpu lock and requires
+ * interrupt to be disabled to avoid race conditions on...
+ */
+ raw_spin_lock_irqsave(&bg->lock, irq_flags);
+ rcu_read_lock();
+
+ st = task_schedtune(p);
+ idx = st->idx;
+
+ schedtune_tasks_update(p, cpu, idx, DEQUEUE_TASK);
+
+ rcu_read_unlock();
+ raw_spin_unlock_irqrestore(&bg->lock, irq_flags);
+}
+
+int schedtune_cpu_boost_with(int cpu, struct task_struct *p)
+{
+ struct boost_groups *bg;
+ u64 now;
+ int task_boost = p ? schedtune_task_boost(p) : -100;
+
+ bg = &per_cpu(cpu_boost_groups, cpu);
+ now = sched_clock_cpu(cpu);
+
+ /* Check to see if we have a hold in effect */
+ if (schedtune_boost_timeout(now, bg->boost_ts))
+ schedtune_cpu_update(cpu, now);
+
+ return max(bg->boost_max, task_boost);
+}
+
+int schedtune_task_boost(struct task_struct *p)
+{
+ struct schedtune *st;
+ int task_boost;
+
+ if (unlikely(!schedtune_initialized))
+ return 0;
+
+ /* Get task boost value */
+ rcu_read_lock();
+ st = task_schedtune(p);
+ task_boost = st->boost;
+ rcu_read_unlock();
+
+ return task_boost;
+}
+
+int schedtune_prefer_idle(struct task_struct *p)
+{
+ struct schedtune *st;
+ int prefer_idle;
+
+ if (unlikely(!schedtune_initialized))
+ return 0;
+
+ /* Get prefer_idle value */
+ rcu_read_lock();
+ st = task_schedtune(p);
+ prefer_idle = st->prefer_idle;
+ rcu_read_unlock();
+
+ return prefer_idle;
+}
+
+static u64
+prefer_idle_read(struct cgroup_subsys_state *css, struct cftype *cft)
+{
+ struct schedtune *st = css_st(css);
+
+ return st->prefer_idle;
+}
+
+static int
+prefer_idle_write(struct cgroup_subsys_state *css, struct cftype *cft,
+ u64 prefer_idle)
+{
+ struct schedtune *st = css_st(css);
+ st->prefer_idle = !!prefer_idle;
+
+ return 0;
+}
+
+static s64
+boost_read(struct cgroup_subsys_state *css, struct cftype *cft)
+{
+ struct schedtune *st = css_st(css);
+
+ return st->boost;
+}
+
+static int
+boost_write(struct cgroup_subsys_state *css, struct cftype *cft,
+ s64 boost)
+{
+ struct schedtune *st = css_st(css);
+
+ if (boost < 0 || boost > 100)
+ return -EINVAL;
+
+ st->boost = boost;
+
+ /* Update CPU boost */
+ schedtune_boostgroup_update(st->idx, st->boost);
+
+ return 0;
+}
+
+static struct cftype files[] = {
+ {
+ .name = "boost",
+ .read_s64 = boost_read,
+ .write_s64 = boost_write,
+ },
+ {
+ .name = "prefer_idle",
+ .read_u64 = prefer_idle_read,
+ .write_u64 = prefer_idle_write,
+ },
+ { } /* terminate */
+};
+
+static void
+schedtune_boostgroup_init(struct schedtune *st, int idx)
+{
+ struct boost_groups *bg;
+ int cpu;
+
+ /* Initialize per CPUs boost group support */
+ for_each_possible_cpu(cpu) {
+ bg = &per_cpu(cpu_boost_groups, cpu);
+ bg->group[idx].boost = 0;
+ bg->group[idx].valid = true;
+ bg->group[idx].ts = 0;
+ }
+
+ /* Keep track of allocated boost groups */
+ allocated_group[idx] = st;
+ st->idx = idx;
+}
+
+static struct cgroup_subsys_state *
+schedtune_css_alloc(struct cgroup_subsys_state *parent_css)
+{
+ struct schedtune *st;
+ int idx;
+
+ if (!parent_css)
+ return &root_schedtune.css;
+
+ /* Allow only single level hierachies */
+ if (parent_css != &root_schedtune.css) {
+ pr_err("Nested SchedTune boosting groups not allowed\n");
+ return ERR_PTR(-ENOMEM);
+ }
+
+ /* Allow only a limited number of boosting groups */
+ for (idx = 1; idx < BOOSTGROUPS_COUNT; ++idx)
+ if (!allocated_group[idx])
+ break;
+ if (idx == BOOSTGROUPS_COUNT) {
+ pr_err("Trying to create more than %d SchedTune boosting groups\n",
+ BOOSTGROUPS_COUNT);
+ return ERR_PTR(-ENOSPC);
+ }
+
+ st = kzalloc(sizeof(*st), GFP_KERNEL);
+ if (!st)
+ goto out;
+
+ /* Initialize per CPUs boost group support */
+ schedtune_boostgroup_init(st, idx);
+
+ return &st->css;
+
+out:
+ return ERR_PTR(-ENOMEM);
+}
+
+static void
+schedtune_boostgroup_release(struct schedtune *st)
+{
+ struct boost_groups *bg;
+ int cpu;
+
+ /* Reset per CPUs boost group support */
+ for_each_possible_cpu(cpu) {
+ bg = &per_cpu(cpu_boost_groups, cpu);
+ bg->group[st->idx].valid = false;
+ bg->group[st->idx].boost = 0;
+ }
+
+ /* Keep track of allocated boost groups */
+ allocated_group[st->idx] = NULL;
+}
+
+static void
+schedtune_css_free(struct cgroup_subsys_state *css)
+{
+ struct schedtune *st = css_st(css);
+
+ /* Release per CPUs boost group support */
+ schedtune_boostgroup_release(st);
+ kfree(st);
+}
+
+struct cgroup_subsys schedtune_cgrp_subsys = {
+ .css_alloc = schedtune_css_alloc,
+ .css_free = schedtune_css_free,
+ .can_attach = schedtune_can_attach,
+ .cancel_attach = schedtune_cancel_attach,
+ .legacy_cftypes = files,
+ .early_init = 1,
+};
+
+static inline void
+schedtune_init_cgroups(void)
+{
+ struct boost_groups *bg;
+ int cpu;
+
+ /* Initialize the per CPU boost groups */
+ for_each_possible_cpu(cpu) {
+ bg = &per_cpu(cpu_boost_groups, cpu);
+ memset(bg, 0, sizeof(struct boost_groups));
+ bg->group[0].valid = true;
+ raw_spin_lock_init(&bg->lock);
+ }
+
+ pr_info("schedtune: configured to support %d boost groups\n",
+ BOOSTGROUPS_COUNT);
+
+ schedtune_initialized = true;
+}
+
+/*
+ * Initialize the cgroup structures
+ */
+static int
+schedtune_init(void)
+{
+ schedtune_spc_rdiv = reciprocal_value(100);
+ schedtune_init_cgroups();
+ return 0;
+}
+postcore_initcall(schedtune_init);
diff --git a/kernel/sched/tune.h b/kernel/sched/tune.h
new file mode 100644
index 0000000..b415fb7
--- /dev/null
+++ b/kernel/sched/tune.h
@@ -0,0 +1,33 @@
+
+#ifdef CONFIG_SCHED_TUNE
+
+#include <linux/reciprocal_div.h>
+
+/*
+ * System energy normalization constants
+ */
+struct target_nrg {
+ unsigned long min_power;
+ unsigned long max_power;
+ struct reciprocal_value rdiv;
+};
+
+int schedtune_cpu_boost_with(int cpu, struct task_struct *p);
+int schedtune_task_boost(struct task_struct *tsk);
+
+int schedtune_prefer_idle(struct task_struct *tsk);
+
+void schedtune_enqueue_task(struct task_struct *p, int cpu);
+void schedtune_dequeue_task(struct task_struct *p, int cpu);
+
+#else /* CONFIG_SCHED_TUNE */
+
+#define schedtune_cpu_boost_with(cpu, p) 0
+#define schedtune_task_boost(tsk) 0
+
+#define schedtune_prefer_idle(tsk) 0
+
+#define schedtune_enqueue_task(task, cpu) do { } while (0)
+#define schedtune_dequeue_task(task, cpu) do { } while (0)
+
+#endif /* CONFIG_SCHED_TUNE */
diff --git a/kernel/sched/wait.c b/kernel/sched/wait.c
index 5dd47f1..0de9dcf 100644
--- a/kernel/sched/wait.c
+++ b/kernel/sched/wait.c
@@ -370,7 +370,8 @@ void finish_wait(struct wait_queue_head *wq_head, struct wait_queue_entry *wq_en
}
EXPORT_SYMBOL(finish_wait);
-int autoremove_wake_function(struct wait_queue_entry *wq_entry, unsigned mode, int sync, void *key)
+int __sched autoremove_wake_function(struct wait_queue_entry *wq_entry,
+ unsigned int mode, int sync, void *key)
{
int ret = default_wake_function(wq_entry, mode, sync, key);
@@ -406,7 +407,8 @@ static inline bool is_kthread_should_stop(void)
* } smp_mb(); // C
* remove_wait_queue(&wq_head, &wait); wq_entry->flags |= WQ_FLAG_WOKEN;
*/
-long wait_woken(struct wait_queue_entry *wq_entry, unsigned mode, long timeout)
+long __sched wait_woken(struct wait_queue_entry *wq_entry, unsigned int mode,
+ long timeout)
{
/*
* The below executes an smp_mb(), which matches with the full barrier
@@ -431,7 +433,8 @@ long wait_woken(struct wait_queue_entry *wq_entry, unsigned mode, long timeout)
}
EXPORT_SYMBOL(wait_woken);
-int woken_wake_function(struct wait_queue_entry *wq_entry, unsigned mode, int sync, void *key)
+int __sched woken_wake_function(struct wait_queue_entry *wq_entry,
+ unsigned int mode, int sync, void *key)
{
/* Pairs with the smp_store_mb() in wait_woken(). */
smp_mb(); /* C */
diff --git a/kernel/scs.c b/kernel/scs.c
new file mode 100644
index 0000000..ad74d13
--- /dev/null
+++ b/kernel/scs.c
@@ -0,0 +1,246 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Shadow Call Stack support.
+ *
+ * Copyright (C) 2019 Google LLC
+ */
+
+#include <linux/cpuhotplug.h>
+#include <linux/kasan.h>
+#include <linux/mm.h>
+#include <linux/mmzone.h>
+#include <linux/scs.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/vmstat.h>
+#include <asm/scs.h>
+
+static inline void *__scs_base(struct task_struct *tsk)
+{
+ /*
+ * To minimize risk the of exposure, architectures may clear a
+ * task's thread_info::shadow_call_stack while that task is
+ * running, and only save/restore the active shadow call stack
+ * pointer when the usual register may be clobbered (e.g. across
+ * context switches).
+ *
+ * The shadow call stack is aligned to SCS_SIZE, and grows
+ * upwards, so we can mask out the low bits to extract the base
+ * when the task is not running.
+ */
+ return (void *)((unsigned long)task_scs(tsk) & ~(SCS_SIZE - 1));
+}
+
+static inline unsigned long *scs_magic(void *s)
+{
+ return (unsigned long *)(s + SCS_SIZE) - 1;
+}
+
+static inline void scs_set_magic(void *s)
+{
+ *scs_magic(s) = SCS_END_MAGIC;
+}
+
+#ifdef CONFIG_SHADOW_CALL_STACK_VMAP
+
+/* Matches NR_CACHED_STACKS for VMAP_STACK */
+#define NR_CACHED_SCS 2
+static DEFINE_PER_CPU(void *, scs_cache[NR_CACHED_SCS]);
+
+static void *scs_alloc(int node)
+{
+ int i;
+ void *s;
+
+ for (i = 0; i < NR_CACHED_SCS; i++) {
+ s = this_cpu_xchg(scs_cache[i], NULL);
+ if (s) {
+ memset(s, 0, SCS_SIZE);
+ goto out;
+ }
+ }
+
+ /*
+ * We allocate a full page for the shadow stack, which should be
+ * more than we need. Check the assumption nevertheless.
+ */
+ BUILD_BUG_ON(SCS_SIZE > PAGE_SIZE);
+
+ s = __vmalloc_node_range(PAGE_SIZE, SCS_SIZE,
+ VMALLOC_START, VMALLOC_END,
+ GFP_SCS, PAGE_KERNEL, 0,
+ node, __builtin_return_address(0));
+
+out:
+ if (s)
+ scs_set_magic(s);
+ /* TODO: poison for KASAN, unpoison in scs_free */
+
+ return s;
+}
+
+static void scs_free(void *s)
+{
+ int i;
+
+ for (i = 0; i < NR_CACHED_SCS; i++)
+ if (this_cpu_cmpxchg(scs_cache[i], 0, s) == NULL)
+ return;
+
+ vfree_atomic(s);
+}
+
+static struct page *__scs_page(struct task_struct *tsk)
+{
+ return vmalloc_to_page(__scs_base(tsk));
+}
+
+static int scs_cleanup(unsigned int cpu)
+{
+ int i;
+ void **cache = per_cpu_ptr(scs_cache, cpu);
+
+ for (i = 0; i < NR_CACHED_SCS; i++) {
+ vfree(cache[i]);
+ cache[i] = NULL;
+ }
+
+ return 0;
+}
+
+void __init scs_init(void)
+{
+ WARN_ON(cpuhp_setup_state(CPUHP_BP_PREPARE_DYN, "scs:scs_cache", NULL,
+ scs_cleanup) < 0);
+}
+
+#else /* !CONFIG_SHADOW_CALL_STACK_VMAP */
+
+static struct kmem_cache *scs_cache;
+
+static inline void *scs_alloc(int node)
+{
+ void *s;
+
+ s = kmem_cache_alloc_node(scs_cache, GFP_SCS, node);
+ if (s) {
+ scs_set_magic(s);
+ /*
+ * Poison the allocation to catch unintentional accesses to
+ * the shadow stack when KASAN is enabled.
+ */
+ kasan_poison_object_data(scs_cache, s);
+ }
+
+ return s;
+}
+
+static inline void scs_free(void *s)
+{
+ kasan_unpoison_object_data(scs_cache, s);
+ kmem_cache_free(scs_cache, s);
+}
+
+static struct page *__scs_page(struct task_struct *tsk)
+{
+ return virt_to_page(__scs_base(tsk));
+}
+
+void __init scs_init(void)
+{
+ scs_cache = kmem_cache_create("scs_cache", SCS_SIZE, SCS_SIZE,
+ 0, NULL);
+ WARN_ON(!scs_cache);
+}
+
+#endif /* CONFIG_SHADOW_CALL_STACK_VMAP */
+
+void scs_task_reset(struct task_struct *tsk)
+{
+ /*
+ * Reset the shadow stack to the base address in case the task
+ * is reused.
+ */
+ task_set_scs(tsk, __scs_base(tsk));
+}
+
+static void scs_account(struct task_struct *tsk, int account)
+{
+ mod_zone_page_state(page_zone(__scs_page(tsk)), NR_KERNEL_SCS_BYTES,
+ account * SCS_SIZE);
+}
+
+int scs_prepare(struct task_struct *tsk, int node)
+{
+ void *s;
+
+ s = scs_alloc(node);
+ if (!s)
+ return -ENOMEM;
+
+ task_set_scs(tsk, s);
+ scs_account(tsk, 1);
+
+ return 0;
+}
+
+#ifdef CONFIG_DEBUG_STACK_USAGE
+static inline unsigned long scs_used(struct task_struct *tsk)
+{
+ unsigned long *p = __scs_base(tsk);
+ unsigned long *end = scs_magic(p);
+ unsigned long s = (unsigned long)p;
+
+ while (p < end && READ_ONCE_NOCHECK(*p))
+ p++;
+
+ return (unsigned long)p - s;
+}
+
+static void scs_check_usage(struct task_struct *tsk)
+{
+ static DEFINE_SPINLOCK(lock);
+ static unsigned long highest;
+ unsigned long used = scs_used(tsk);
+
+ if (used <= highest)
+ return;
+
+ spin_lock(&lock);
+
+ if (used > highest) {
+ pr_info("%s (%d): highest shadow stack usage: %lu bytes\n",
+ tsk->comm, task_pid_nr(tsk), used);
+ highest = used;
+ }
+
+ spin_unlock(&lock);
+}
+#else
+static inline void scs_check_usage(struct task_struct *tsk)
+{
+}
+#endif
+
+bool scs_corrupted(struct task_struct *tsk)
+{
+ unsigned long *magic = scs_magic(__scs_base(tsk));
+
+ return READ_ONCE_NOCHECK(*magic) != SCS_END_MAGIC;
+}
+
+void scs_release(struct task_struct *tsk)
+{
+ void *s;
+
+ s = __scs_base(tsk);
+ if (!s)
+ return;
+
+ WARN_ON(scs_corrupted(tsk));
+ scs_check_usage(tsk);
+
+ scs_account(tsk, -1);
+ task_set_scs(tsk, NULL);
+ scs_free(s);
+}
diff --git a/kernel/signal.c b/kernel/signal.c
index a02a25a..9ff2c26 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -19,7 +19,9 @@
#include <linux/sched/task.h>
#include <linux/sched/task_stack.h>
#include <linux/sched/cputime.h>
+#include <linux/file.h>
#include <linux/fs.h>
+#include <linux/proc_fs.h>
#include <linux/tty.h>
#include <linux/binfmts.h>
#include <linux/coredump.h>
@@ -41,6 +43,7 @@
#include <linux/compiler.h>
#include <linux/posix-timers.h>
#include <linux/livepatch.h>
+#include <linux/cgroup.h>
#define CREATE_TRACE_POINTS
#include <trace/events/signal.h>
@@ -149,9 +152,10 @@ static inline bool has_pending_signals(sigset_t *signal, sigset_t *blocked)
static bool recalc_sigpending_tsk(struct task_struct *t)
{
- if ((t->jobctl & JOBCTL_PENDING_MASK) ||
+ if ((t->jobctl & (JOBCTL_PENDING_MASK | JOBCTL_TRAP_FREEZE)) ||
PENDING(&t->pending, &t->blocked) ||
- PENDING(&t->signal->shared_pending, &t->blocked)) {
+ PENDING(&t->signal->shared_pending, &t->blocked) ||
+ cgroup_task_frozen(t)) {
set_tsk_thread_flag(t, TIF_SIGPENDING);
return true;
}
@@ -1810,6 +1814,14 @@ int send_sigqueue(struct sigqueue *q, struct pid *pid, enum pid_type type)
return ret;
}
+static void do_notify_pidfd(struct task_struct *task)
+{
+ struct pid *pid;
+
+ pid = task_pid(task);
+ wake_up_all(&pid->wait_pidfd);
+}
+
/*
* Let a parent know about the death of a child.
* For a stopped/continued status change, use do_notify_parent_cldstop instead.
@@ -1833,6 +1845,9 @@ bool do_notify_parent(struct task_struct *tsk, int sig)
BUG_ON(!tsk->ptrace &&
(tsk->group_leader != tsk || !thread_group_empty(tsk)));
+ /* Wake up all pidfd waiters */
+ do_notify_pidfd(tsk);
+
if (sig != SIGCHLD) {
/*
* This is only possible if parent == real_parent.
@@ -2117,8 +2132,10 @@ static void ptrace_stop(int exit_code, int why, int clear_code, siginfo_t *info)
*/
preempt_disable();
read_unlock(&tasklist_lock);
+ cgroup_enter_frozen();
preempt_enable_no_resched();
freezable_schedule();
+ cgroup_leave_frozen(true);
} else {
/*
* By the time we got the lock, our tracer went away.
@@ -2296,6 +2313,7 @@ static bool do_signal_stop(int signr)
}
/* Now we don't run again until woken by SIGCONT or SIGKILL */
+ cgroup_enter_frozen();
freezable_schedule();
return true;
} else {
@@ -2342,6 +2360,43 @@ static void do_jobctl_trap(void)
}
}
+/**
+ * do_freezer_trap - handle the freezer jobctl trap
+ *
+ * Puts the task into frozen state, if only the task is not about to quit.
+ * In this case it drops JOBCTL_TRAP_FREEZE.
+ *
+ * CONTEXT:
+ * Must be called with @current->sighand->siglock held,
+ * which is always released before returning.
+ */
+static void do_freezer_trap(void)
+ __releases(¤t->sighand->siglock)
+{
+ /*
+ * If there are other trap bits pending except JOBCTL_TRAP_FREEZE,
+ * let's make another loop to give it a chance to be handled.
+ * In any case, we'll return back.
+ */
+ if ((current->jobctl & (JOBCTL_PENDING_MASK | JOBCTL_TRAP_FREEZE)) !=
+ JOBCTL_TRAP_FREEZE) {
+ spin_unlock_irq(¤t->sighand->siglock);
+ return;
+ }
+
+ /*
+ * Now we're sure that there is no pending fatal signal and no
+ * pending traps. Clear TIF_SIGPENDING to not get out of schedule()
+ * immediately (if there is a non-fatal signal pending), and
+ * put the task into sleep.
+ */
+ __set_current_state(TASK_INTERRUPTIBLE);
+ clear_thread_flag(TIF_SIGPENDING);
+ spin_unlock_irq(¤t->sighand->siglock);
+ cgroup_enter_frozen();
+ freezable_schedule();
+}
+
static int ptrace_signal(int signr, siginfo_t *info)
{
/*
@@ -2454,6 +2509,10 @@ bool get_signal(struct ksignal *ksig)
trace_signal_deliver(SIGKILL, SEND_SIG_NOINFO,
&sighand->action[SIGKILL - 1]);
recalc_sigpending();
+ current->jobctl &= ~JOBCTL_TRAP_FREEZE;
+ spin_unlock_irq(&sighand->siglock);
+ if (unlikely(cgroup_task_frozen(current)))
+ cgroup_leave_frozen(true);
goto fatal;
}
@@ -2464,9 +2523,24 @@ bool get_signal(struct ksignal *ksig)
do_signal_stop(0))
goto relock;
- if (unlikely(current->jobctl & JOBCTL_TRAP_MASK)) {
- do_jobctl_trap();
+ if (unlikely(current->jobctl &
+ (JOBCTL_TRAP_MASK | JOBCTL_TRAP_FREEZE))) {
+ if (current->jobctl & JOBCTL_TRAP_MASK) {
+ do_jobctl_trap();
+ spin_unlock_irq(&sighand->siglock);
+ } else if (current->jobctl & JOBCTL_TRAP_FREEZE)
+ do_freezer_trap();
+
+ goto relock;
+ }
+
+ /*
+ * If the task is leaving the frozen state, let's update
+ * cgroup counters and reset the frozen bit.
+ */
+ if (unlikely(cgroup_task_frozen(current))) {
spin_unlock_irq(&sighand->siglock);
+ cgroup_leave_frozen(true);
goto relock;
}
@@ -2560,8 +2634,8 @@ bool get_signal(struct ksignal *ksig)
continue;
}
- fatal:
spin_unlock_irq(&sighand->siglock);
+ fatal:
/*
* Anything else is fatal, maybe with a core dump.
@@ -3278,6 +3352,16 @@ COMPAT_SYSCALL_DEFINE4(rt_sigtimedwait, compat_sigset_t __user *, uthese,
}
#endif
+static inline void prepare_kill_siginfo(int sig, struct siginfo *info)
+{
+ clear_siginfo(info);
+ info->si_signo = sig;
+ info->si_errno = 0;
+ info->si_code = SI_USER;
+ info->si_pid = task_tgid_vnr(current);
+ info->si_uid = from_kuid_munged(current_user_ns(), current_uid());
+}
+
/**
* sys_kill - send a signal to a process
* @pid: the PID of the process
@@ -3287,16 +3371,125 @@ SYSCALL_DEFINE2(kill, pid_t, pid, int, sig)
{
struct siginfo info;
- clear_siginfo(&info);
- info.si_signo = sig;
- info.si_errno = 0;
- info.si_code = SI_USER;
- info.si_pid = task_tgid_vnr(current);
- info.si_uid = from_kuid_munged(current_user_ns(), current_uid());
+ prepare_kill_siginfo(sig, &info);
return kill_something_info(sig, &info, pid);
}
+/*
+ * Verify that the signaler and signalee either are in the same pid namespace
+ * or that the signaler's pid namespace is an ancestor of the signalee's pid
+ * namespace.
+ */
+static bool access_pidfd_pidns(struct pid *pid)
+{
+ struct pid_namespace *active = task_active_pid_ns(current);
+ struct pid_namespace *p = ns_of_pid(pid);
+
+ for (;;) {
+ if (!p)
+ return false;
+ if (p == active)
+ break;
+ p = p->parent;
+ }
+
+ return true;
+}
+
+static int copy_siginfo_from_user_any(siginfo_t *kinfo, siginfo_t __user *info)
+{
+#ifdef CONFIG_COMPAT
+ /*
+ * Avoid hooking up compat syscalls and instead handle necessary
+ * conversions here. Note, this is a stop-gap measure and should not be
+ * considered a generic solution.
+ */
+ if (in_compat_syscall())
+ return copy_siginfo_from_user32(
+ kinfo, (struct compat_siginfo __user *)info);
+#endif
+ return copy_from_user(kinfo, info, sizeof(siginfo_t));
+}
+
+static struct pid *pidfd_to_pid(const struct file *file)
+{
+ if (file->f_op == &pidfd_fops)
+ return file->private_data;
+
+ return tgid_pidfd_to_pid(file);
+}
+
+/**
+ * sys_pidfd_send_signal - Signal a process through a pidfd
+ * @pidfd: file descriptor of the process
+ * @sig: signal to send
+ * @info: signal info
+ * @flags: future flags
+ *
+ * The syscall currently only signals via PIDTYPE_PID which covers
+ * kill(<positive-pid>, <signal>. It does not signal threads or process
+ * groups.
+ * In order to extend the syscall to threads and process groups the @flags
+ * argument should be used. In essence, the @flags argument will determine
+ * what is signaled and not the file descriptor itself. Put in other words,
+ * grouping is a property of the flags argument not a property of the file
+ * descriptor.
+ *
+ * Return: 0 on success, negative errno on failure
+ */
+SYSCALL_DEFINE4(pidfd_send_signal, int, pidfd, int, sig,
+ siginfo_t __user *, info, unsigned int, flags)
+{
+ int ret;
+ struct fd f;
+ struct pid *pid;
+ siginfo_t kinfo;
+
+ /* Enforce flags be set to 0 until we add an extension. */
+ if (flags)
+ return -EINVAL;
+
+ f = fdget(pidfd);
+ if (!f.file)
+ return -EBADF;
+
+ /* Is this a pidfd? */
+ pid = pidfd_to_pid(f.file);
+ if (IS_ERR(pid)) {
+ ret = PTR_ERR(pid);
+ goto err;
+ }
+
+ ret = -EINVAL;
+ if (!access_pidfd_pidns(pid))
+ goto err;
+
+ if (info) {
+ ret = copy_siginfo_from_user_any(&kinfo, info);
+ if (unlikely(ret))
+ goto err;
+
+ ret = -EINVAL;
+ if (unlikely(sig != kinfo.si_signo))
+ goto err;
+
+ /* Only allow sending arbitrary signals to yourself. */
+ ret = -EPERM;
+ if ((task_pid(current) != pid) &&
+ (kinfo.si_code >= 0 || kinfo.si_code == SI_TKILL))
+ goto err;
+ } else {
+ prepare_kill_siginfo(sig, &kinfo);
+ }
+
+ ret = kill_pid_info(sig, &kinfo, pid);
+
+err:
+ fdput(f);
+ return ret;
+}
+
static int
do_send_specific(pid_t tgid, pid_t pid, int sig, struct siginfo *info)
{
diff --git a/kernel/sys.c b/kernel/sys.c
index baf60a3..db88cc3 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -42,6 +42,8 @@
#include <linux/syscore_ops.h>
#include <linux/version.h>
#include <linux/ctype.h>
+#include <linux/mm.h>
+#include <linux/mempolicy.h>
#include <linux/compat.h>
#include <linux/syscalls.h>
@@ -121,6 +123,12 @@
#ifndef SVE_GET_VL
# define SVE_GET_VL() (-EINVAL)
#endif
+#ifndef SET_TAGGED_ADDR_CTRL
+# define SET_TAGGED_ADDR_CTRL(a) (-EINVAL)
+#endif
+#ifndef GET_TAGGED_ADDR_CTRL
+# define GET_TAGGED_ADDR_CTRL() (-EINVAL)
+#endif
/*
* this is where the system-wide overflow UID and GID are defined, for
@@ -2260,6 +2268,153 @@ int __weak arch_prctl_spec_ctrl_set(struct task_struct *t, unsigned long which,
return -EINVAL;
}
+#ifdef CONFIG_MMU
+static int prctl_update_vma_anon_name(struct vm_area_struct *vma,
+ struct vm_area_struct **prev,
+ unsigned long start, unsigned long end,
+ const char __user *name_addr)
+{
+ struct mm_struct *mm = vma->vm_mm;
+ int error = 0;
+ pgoff_t pgoff;
+
+ if (name_addr == vma_get_anon_name(vma)) {
+ *prev = vma;
+ goto out;
+ }
+
+ pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
+ *prev = vma_merge(mm, *prev, start, end, vma->vm_flags, vma->anon_vma,
+ vma->vm_file, pgoff, vma_policy(vma),
+ vma->vm_userfaultfd_ctx, name_addr);
+ if (*prev) {
+ vma = *prev;
+ goto success;
+ }
+
+ *prev = vma;
+
+ if (start != vma->vm_start) {
+ error = split_vma(mm, vma, start, 1);
+ if (error)
+ goto out;
+ }
+
+ if (end != vma->vm_end) {
+ error = split_vma(mm, vma, end, 0);
+ if (error)
+ goto out;
+ }
+
+success:
+ if (!vma->vm_file)
+ vma->anon_name = name_addr;
+
+out:
+ if (error == -ENOMEM)
+ error = -EAGAIN;
+ return error;
+}
+
+static int prctl_set_vma_anon_name(unsigned long start, unsigned long end,
+ unsigned long arg)
+{
+ unsigned long tmp;
+ struct vm_area_struct *vma, *prev;
+ int unmapped_error = 0;
+ int error = -EINVAL;
+
+ /*
+ * If the interval [start,end) covers some unmapped address
+ * ranges, just ignore them, but return -ENOMEM at the end.
+ * - this matches the handling in madvise.
+ */
+ vma = find_vma_prev(current->mm, start, &prev);
+ if (vma && start > vma->vm_start)
+ prev = vma;
+
+ for (;;) {
+ /* Still start < end. */
+ error = -ENOMEM;
+ if (!vma)
+ return error;
+
+ /* Here start < (end|vma->vm_end). */
+ if (start < vma->vm_start) {
+ unmapped_error = -ENOMEM;
+ start = vma->vm_start;
+ if (start >= end)
+ return error;
+ }
+
+ /* Here vma->vm_start <= start < (end|vma->vm_end) */
+ tmp = vma->vm_end;
+ if (end < tmp)
+ tmp = end;
+
+ /* Here vma->vm_start <= start < tmp <= (end|vma->vm_end). */
+ error = prctl_update_vma_anon_name(vma, &prev, start, tmp,
+ (const char __user *)arg);
+ if (error)
+ return error;
+ start = tmp;
+ if (prev && start < prev->vm_end)
+ start = prev->vm_end;
+ error = unmapped_error;
+ if (start >= end)
+ return error;
+ if (prev)
+ vma = prev->vm_next;
+ else /* madvise_remove dropped mmap_sem */
+ vma = find_vma(current->mm, start);
+ }
+}
+
+static int prctl_set_vma(unsigned long opt, unsigned long start,
+ unsigned long len_in, unsigned long arg)
+{
+ struct mm_struct *mm = current->mm;
+ int error;
+ unsigned long len;
+ unsigned long end;
+
+ if (start & ~PAGE_MASK)
+ return -EINVAL;
+ len = (len_in + ~PAGE_MASK) & PAGE_MASK;
+
+ /* Check to see whether len was rounded up from small -ve to zero */
+ if (len_in && !len)
+ return -EINVAL;
+
+ end = start + len;
+ if (end < start)
+ return -EINVAL;
+
+ if (end == start)
+ return 0;
+
+ down_write(&mm->mmap_sem);
+
+ switch (opt) {
+ case PR_SET_VMA_ANON_NAME:
+ error = prctl_set_vma_anon_name(start, end, arg);
+ break;
+ default:
+ error = -EINVAL;
+ }
+
+ up_write(&mm->mmap_sem);
+
+ return error;
+}
+#else /* CONFIG_MMU */
+static int prctl_set_vma(unsigned long opt, unsigned long start,
+ unsigned long len_in, unsigned long arg)
+{
+ return -EINVAL;
+}
+#endif
+
SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3,
unsigned long, arg4, unsigned long, arg5)
{
@@ -2478,6 +2633,19 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3,
return -EINVAL;
error = arch_prctl_spec_ctrl_set(me, arg2, arg3);
break;
+ case PR_SET_VMA:
+ error = prctl_set_vma(arg2, arg3, arg4, arg5);
+ break;
+ case PR_SET_TAGGED_ADDR_CTRL:
+ if (arg3 || arg4 || arg5)
+ return -EINVAL;
+ error = SET_TAGGED_ADDR_CTRL(arg2);
+ break;
+ case PR_GET_TAGGED_ADDR_CTRL:
+ if (arg2 || arg3 || arg4 || arg5)
+ return -EINVAL;
+ error = GET_TAGGED_ADDR_CTRL();
+ break;
default:
error = -EINVAL;
break;
diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c
index df55617..7042383 100644
--- a/kernel/sys_ni.c
+++ b/kernel/sys_ni.c
@@ -162,8 +162,6 @@ COND_SYSCALL(syslog);
/* kernel/sched/core.c */
-/* kernel/signal.c */
-
/* kernel/sys.c */
COND_SYSCALL(setregid);
COND_SYSCALL(setgid);
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index a5d75bc..2cc183d 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -108,6 +108,7 @@ extern char core_pattern[];
extern unsigned int core_pipe_limit;
#endif
extern int pid_max;
+extern int extra_free_kbytes;
extern int pid_max_min, pid_max_max;
extern int percpu_pagelist_fraction;
extern int latencytop_enabled;
@@ -325,6 +326,13 @@ static struct ctl_table kern_table[] = {
},
#ifdef CONFIG_SCHED_DEBUG
{
+ .procname = "sched_cstate_aware",
+ .data = &sysctl_sched_cstate_aware,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+ {
.procname = "sched_min_granularity_ns",
.data = &sysctl_sched_min_granularity,
.maxlen = sizeof(unsigned int),
@@ -343,6 +351,13 @@ static struct ctl_table kern_table[] = {
.extra2 = &max_sched_granularity_ns,
},
{
+ .procname = "sched_sync_hint_enable",
+ .data = &sysctl_sched_sync_hint_enable,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+ {
.procname = "sched_wakeup_granularity_ns",
.data = &sysctl_sched_wakeup_granularity,
.maxlen = sizeof(unsigned int),
@@ -449,6 +464,22 @@ static struct ctl_table kern_table[] = {
.mode = 0644,
.proc_handler = sched_rr_handler,
},
+#ifdef CONFIG_UCLAMP_TASK
+ {
+ .procname = "sched_util_clamp_min",
+ .data = &sysctl_sched_uclamp_util_min,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sysctl_sched_uclamp_handler,
+ },
+ {
+ .procname = "sched_util_clamp_max",
+ .data = &sysctl_sched_uclamp_util_max,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sysctl_sched_uclamp_handler,
+ },
+#endif
#ifdef CONFIG_SCHED_AUTOGROUP
{
.procname = "sched_autogroup_enabled",
@@ -470,6 +501,17 @@ static struct ctl_table kern_table[] = {
.extra1 = &one,
},
#endif
+#if defined(CONFIG_ENERGY_MODEL) && defined(CONFIG_CPU_FREQ_GOV_SCHEDUTIL)
+ {
+ .procname = "sched_energy_aware",
+ .data = &sysctl_sched_energy_aware,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_energy_aware_handler,
+ .extra1 = &zero,
+ .extra2 = &one,
+ },
+#endif
#ifdef CONFIG_PROVE_LOCKING
{
.procname = "prove_locking",
@@ -1464,6 +1506,14 @@ static struct ctl_table vm_table[] = {
.extra2 = &one_thousand,
},
{
+ .procname = "extra_free_kbytes",
+ .data = &extra_free_kbytes,
+ .maxlen = sizeof(extra_free_kbytes),
+ .mode = 0644,
+ .proc_handler = min_free_kbytes_sysctl_handler,
+ .extra1 = &zero,
+ },
+ {
.procname = "percpu_pagelist_fraction",
.data = &percpu_pagelist_fraction,
.maxlen = sizeof(percpu_pagelist_fraction),
diff --git a/kernel/time/Makefile b/kernel/time/Makefile
index f1e46f3..1867044 100644
--- a/kernel/time/Makefile
+++ b/kernel/time/Makefile
@@ -16,5 +16,6 @@
endif
obj-$(CONFIG_GENERIC_SCHED_CLOCK) += sched_clock.o
obj-$(CONFIG_TICK_ONESHOT) += tick-oneshot.o tick-sched.o
+obj-$(CONFIG_HAVE_GENERIC_VDSO) += vsyscall.o
obj-$(CONFIG_DEBUG_FS) += timekeeping_debug.o
obj-$(CONFIG_TEST_UDELAY) += test_udelay.o
diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c
index 6a2ba39..730b834 100644
--- a/kernel/time/alarmtimer.c
+++ b/kernel/time/alarmtimer.c
@@ -101,7 +101,7 @@ static int alarmtimer_rtc_add_device(struct device *dev,
if (!device_may_wakeup(rtc->dev.parent))
return -1;
- __ws = wakeup_source_register("alarmtimer");
+ __ws = wakeup_source_register(dev, "alarmtimer");
spin_lock_irqsave(&rtcdev_lock, flags);
if (!rtcdev) {
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 48403fb..77c359d 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -26,6 +26,7 @@
#include <linux/module.h>
#include <linux/irq_work.h>
#include <linux/posix-timers.h>
+#include <linux/timer.h>
#include <linux/context_tracking.h>
#include <linux/mm.h>
@@ -1067,6 +1068,7 @@ ktime_t tick_nohz_get_sleep_length(ktime_t *delta_next)
return ktime_sub(next_event, now);
}
+EXPORT_SYMBOL_GPL(tick_nohz_get_sleep_length);
/**
* tick_nohz_get_idle_calls_cpu - return the current idle calls counter value
@@ -1257,6 +1259,18 @@ void tick_irq_enter(void)
* High resolution timer specific code
*/
#ifdef CONFIG_HIGH_RES_TIMERS
+
+static void (*wake_callback)(void);
+
+void register_tick_sched_wakeup_callback(void (*cb)(void))
+{
+ if (!wake_callback)
+ wake_callback = cb;
+ else
+ pr_warn("tick-sched wake cb already exists; skipping.\n");
+}
+EXPORT_SYMBOL_GPL(register_tick_sched_wakeup_callback);
+
/*
* We rearm the timer until we get disabled by the idle code.
* Called with interrupts disabled.
@@ -1274,8 +1288,15 @@ static enum hrtimer_restart tick_sched_timer(struct hrtimer *timer)
* Do not call, when we are not in irq context and have
* no valid regs pointer
*/
- if (regs)
+ if (regs) {
tick_sched_handle(ts, regs);
+ if (wake_callback && tick_do_timer_cpu == smp_processor_id()) {
+ /*
+ * wakeup user if needed
+ */
+ wake_callback();
+ }
+ }
else
ts->next_tick = 0;
@@ -1391,3 +1412,9 @@ int tick_check_oneshot_change(int allow_nohz)
tick_nohz_switch_to_nohz();
return 0;
}
+
+ktime_t *get_next_event_cpu(unsigned int cpu)
+{
+ return &(per_cpu(tick_cpu_device, cpu).evtdev->next_event);
+}
+EXPORT_SYMBOL_GPL(get_next_event_cpu);
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index c66fd11..aa798af 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -150,6 +150,11 @@ static void tk_set_wall_to_mono(struct timekeeper *tk, struct timespec64 wtm)
static inline void tk_update_sleep_time(struct timekeeper *tk, ktime_t delta)
{
tk->offs_boot = ktime_add(tk->offs_boot, delta);
+ /*
+ * Timespec representation for VDSO update to avoid 64bit division
+ * on every update.
+ */
+ tk->monotonic_to_boot = ktime_to_timespec64(tk->offs_boot);
}
/*
diff --git a/kernel/time/vsyscall.c b/kernel/time/vsyscall.c
new file mode 100644
index 0000000..5ee0f77
--- /dev/null
+++ b/kernel/time/vsyscall.c
@@ -0,0 +1,130 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2019 ARM Ltd.
+ *
+ * Generic implementation of update_vsyscall and update_vsyscall_tz.
+ *
+ * Based on the x86 specific implementation.
+ */
+
+#include <linux/hrtimer.h>
+#include <linux/timekeeper_internal.h>
+#include <vdso/datapage.h>
+#include <vdso/helpers.h>
+#include <vdso/vsyscall.h>
+
+static inline void update_vdso_data(struct vdso_data *vdata,
+ struct timekeeper *tk)
+{
+ struct vdso_timestamp *vdso_ts;
+ u64 nsec, sec;
+
+ vdata[CS_HRES_COARSE].cycle_last = tk->tkr_mono.cycle_last;
+ vdata[CS_HRES_COARSE].mask = tk->tkr_mono.mask;
+ vdata[CS_HRES_COARSE].mult = tk->tkr_mono.mult;
+ vdata[CS_HRES_COARSE].shift = tk->tkr_mono.shift;
+ vdata[CS_RAW].cycle_last = tk->tkr_raw.cycle_last;
+ vdata[CS_RAW].mask = tk->tkr_raw.mask;
+ vdata[CS_RAW].mult = tk->tkr_raw.mult;
+ vdata[CS_RAW].shift = tk->tkr_raw.shift;
+
+ /* CLOCK_REALTIME */
+ vdso_ts = &vdata[CS_HRES_COARSE].basetime[CLOCK_REALTIME];
+ vdso_ts->sec = tk->xtime_sec;
+ vdso_ts->nsec = tk->tkr_mono.xtime_nsec;
+
+ /* CLOCK_MONOTONIC */
+ vdso_ts = &vdata[CS_HRES_COARSE].basetime[CLOCK_MONOTONIC];
+ vdso_ts->sec = tk->xtime_sec + tk->wall_to_monotonic.tv_sec;
+
+ nsec = tk->tkr_mono.xtime_nsec;
+ nsec += ((u64)tk->wall_to_monotonic.tv_nsec << tk->tkr_mono.shift);
+ while (nsec >= (((u64)NSEC_PER_SEC) << tk->tkr_mono.shift)) {
+ nsec -= (((u64)NSEC_PER_SEC) << tk->tkr_mono.shift);
+ vdso_ts->sec++;
+ }
+ vdso_ts->nsec = nsec;
+
+ /* Copy MONOTONIC time for BOOTTIME */
+ sec = vdso_ts->sec;
+ /* Add the boot offset */
+ sec += tk->monotonic_to_boot.tv_sec;
+ nsec += (u64)tk->monotonic_to_boot.tv_nsec << tk->tkr_mono.shift;
+
+ /* CLOCK_BOOTTIME */
+ vdso_ts = &vdata[CS_HRES_COARSE].basetime[CLOCK_BOOTTIME];
+ vdso_ts->sec = sec;
+
+ while (nsec >= (((u64)NSEC_PER_SEC) << tk->tkr_mono.shift)) {
+ nsec -= (((u64)NSEC_PER_SEC) << tk->tkr_mono.shift);
+ vdso_ts->sec++;
+ }
+ vdso_ts->nsec = nsec;
+
+ /* CLOCK_MONOTONIC_RAW */
+ vdso_ts = &vdata[CS_RAW].basetime[CLOCK_MONOTONIC_RAW];
+ vdso_ts->sec = tk->raw_sec;
+ vdso_ts->nsec = tk->tkr_raw.xtime_nsec;
+
+ /* CLOCK_TAI */
+ vdso_ts = &vdata[CS_HRES_COARSE].basetime[CLOCK_TAI];
+ vdso_ts->sec = tk->xtime_sec + (s64)tk->tai_offset;
+ vdso_ts->nsec = tk->tkr_mono.xtime_nsec;
+
+ /*
+ * Read without the seqlock held by clock_getres().
+ * Note: No need to have a second copy.
+ */
+ WRITE_ONCE(vdata[CS_HRES_COARSE].hrtimer_res, hrtimer_resolution);
+}
+
+void update_vsyscall(struct timekeeper *tk)
+{
+ struct vdso_data *vdata = __arch_get_k_vdso_data();
+ struct vdso_timestamp *vdso_ts;
+ u64 nsec;
+
+ if (__arch_update_vdso_data()) {
+ /*
+ * Some architectures might want to skip the update of the
+ * data page.
+ */
+ return;
+ }
+
+ /* copy vsyscall data */
+ vdso_write_begin(vdata);
+
+ vdata[CS_HRES_COARSE].clock_mode = __arch_get_clock_mode(tk);
+ vdata[CS_RAW].clock_mode = __arch_get_clock_mode(tk);
+
+ /* CLOCK_REALTIME_COARSE */
+ vdso_ts = &vdata[CS_HRES_COARSE].basetime[CLOCK_REALTIME_COARSE];
+ vdso_ts->sec = tk->xtime_sec;
+ vdso_ts->nsec = tk->tkr_mono.xtime_nsec >> tk->tkr_mono.shift;
+
+ /* CLOCK_MONOTONIC_COARSE */
+ vdso_ts = &vdata[CS_HRES_COARSE].basetime[CLOCK_MONOTONIC_COARSE];
+ vdso_ts->sec = tk->xtime_sec + tk->wall_to_monotonic.tv_sec;
+ nsec = tk->tkr_mono.xtime_nsec >> tk->tkr_mono.shift;
+ nsec = nsec + tk->wall_to_monotonic.tv_nsec;
+ vdso_ts->sec += __iter_div_u64_rem(nsec, NSEC_PER_SEC, &vdso_ts->nsec);
+
+ update_vdso_data(vdata, tk);
+
+ __arch_update_vsyscall(vdata, tk);
+
+ vdso_write_end(vdata);
+
+ __arch_sync_vdso_data(vdata);
+}
+
+void update_vsyscall_tz(void)
+{
+ struct vdso_data *vdata = __arch_get_k_vdso_data();
+
+ vdata[CS_HRES_COARSE].tz_minuteswest = sys_tz.tz_minuteswest;
+ vdata[CS_HRES_COARSE].tz_dsttime = sys_tz.tz_dsttime;
+
+ __arch_sync_vdso_data(vdata);
+}
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index e656d1e..9b5bd0a 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -105,7 +105,6 @@
config TRACING
bool
- select DEBUG_FS
select RING_BUFFER
select STACKTRACE if STACKTRACE_SUPPORT
select TRACEPOINTS
diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c
index 1cb13d6..24f8099 100644
--- a/kernel/trace/bpf_trace.c
+++ b/kernel/trace/bpf_trace.c
@@ -561,6 +561,8 @@ tracing_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
return &bpf_probe_read_proto;
case BPF_FUNC_ktime_get_ns:
return &bpf_ktime_get_ns_proto;
+ case BPF_FUNC_ktime_get_boot_ns:
+ return &bpf_ktime_get_boot_ns_proto;
case BPF_FUNC_tail_call:
return &bpf_tail_call_proto;
case BPF_FUNC_get_current_pid_tgid:
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index c5c8aaf..0c729f9 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -124,8 +124,9 @@ static void ftrace_ops_list_func(unsigned long ip, unsigned long parent_ip,
struct ftrace_ops *op, struct pt_regs *regs);
#else
/* See comment below, where ftrace_ops_list_func is defined */
-static void ftrace_ops_no_ops(unsigned long ip, unsigned long parent_ip);
-#define ftrace_ops_list_func ((ftrace_func_t)ftrace_ops_no_ops)
+static void ftrace_ops_no_ops(unsigned long ip, unsigned long parent_ip,
+ struct ftrace_ops *op, struct pt_regs *regs);
+#define ftrace_ops_list_func ftrace_ops_no_ops
#endif
/*
@@ -5566,9 +5567,9 @@ static int ftrace_cmp_ips(const void *a, const void *b)
return 0;
}
-static int ftrace_process_locs(struct module *mod,
- unsigned long *start,
- unsigned long *end)
+static int __norecordmcount ftrace_process_locs(struct module *mod,
+ unsigned long *start,
+ unsigned long *end)
{
struct ftrace_page *start_pg;
struct ftrace_page *pg;
@@ -6382,7 +6383,8 @@ static void ftrace_ops_list_func(unsigned long ip, unsigned long parent_ip,
}
NOKPROBE_SYMBOL(ftrace_ops_list_func);
#else
-static void ftrace_ops_no_ops(unsigned long ip, unsigned long parent_ip)
+static void ftrace_ops_no_ops(unsigned long ip, unsigned long parent_ip,
+ struct ftrace_ops *op, struct pt_regs *regs)
{
__ftrace_ops_list_func(ip, parent_ip, NULL, NULL);
}
@@ -6844,14 +6846,17 @@ void ftrace_graph_graph_time_control(bool enable)
fgraph_graph_time = enable;
}
+void ftrace_graph_return_stub(struct ftrace_graph_ret *trace)
+{
+}
+
int ftrace_graph_entry_stub(struct ftrace_graph_ent *trace)
{
return 0;
}
/* The callbacks that hook a function */
-trace_func_graph_ret_t ftrace_graph_return =
- (trace_func_graph_ret_t)ftrace_stub;
+trace_func_graph_ret_t ftrace_graph_return = ftrace_graph_return_stub;
trace_func_graph_ent_t ftrace_graph_entry = ftrace_graph_entry_stub;
static trace_func_graph_ent_t __ftrace_graph_entry = ftrace_graph_entry_stub;
@@ -7080,7 +7085,7 @@ void unregister_ftrace_graph(void)
goto out;
ftrace_graph_active--;
- ftrace_graph_return = (trace_func_graph_ret_t)ftrace_stub;
+ ftrace_graph_return = ftrace_graph_return_stub;
ftrace_graph_entry = ftrace_graph_entry_stub;
__ftrace_graph_entry = ftrace_graph_entry_stub;
ftrace_shutdown(&graph_ops, FTRACE_STOP_FUNC_RET);
diff --git a/kernel/trace/power-traces.c b/kernel/trace/power-traces.c
index 21bb161..df060af 100644
--- a/kernel/trace/power-traces.c
+++ b/kernel/trace/power-traces.c
@@ -19,3 +19,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(cpu_idle);
EXPORT_TRACEPOINT_SYMBOL_GPL(cpu_frequency);
EXPORT_TRACEPOINT_SYMBOL_GPL(powernv_throttle);
+EXPORT_TRACEPOINT_SYMBOL_GPL(clock_set_rate);
diff --git a/kernel/trace/trace_event_perf.c b/kernel/trace/trace_event_perf.c
index f5b3bf0..fb54fdc 100644
--- a/kernel/trace/trace_event_perf.c
+++ b/kernel/trace/trace_event_perf.c
@@ -8,6 +8,7 @@
#include <linux/module.h>
#include <linux/kprobes.h>
+#include <linux/security.h>
#include "trace.h"
#include "trace_probe.h"
@@ -26,8 +27,10 @@ static int total_ref_count;
static int perf_trace_event_perm(struct trace_event_call *tp_event,
struct perf_event *p_event)
{
+ int ret;
+
if (tp_event->perf_perm) {
- int ret = tp_event->perf_perm(tp_event, p_event);
+ ret = tp_event->perf_perm(tp_event, p_event);
if (ret)
return ret;
}
@@ -46,8 +49,9 @@ static int perf_trace_event_perm(struct trace_event_call *tp_event,
/* The ftrace function trace is allowed only for root. */
if (ftrace_event_is_function(tp_event)) {
- if (perf_paranoid_tracepoint_raw() && !capable(CAP_SYS_ADMIN))
- return -EPERM;
+ ret = perf_allow_tracepoint(&p_event->attr);
+ if (ret)
+ return ret;
if (!is_sampling_event(p_event))
return 0;
@@ -82,8 +86,9 @@ static int perf_trace_event_perm(struct trace_event_call *tp_event,
* ...otherwise raw tracepoint data can be a severe data leak,
* only allow root to have these.
*/
- if (perf_paranoid_tracepoint_raw() && !capable(CAP_SYS_ADMIN))
- return -EPERM;
+ ret = perf_allow_tracepoint(&p_event->attr);
+ if (ret)
+ return ret;
return 0;
}
diff --git a/kernel/user.c b/kernel/user.c
index 0df9b16..7f74a8a 100644
--- a/kernel/user.c
+++ b/kernel/user.c
@@ -17,6 +17,7 @@
#include <linux/interrupt.h>
#include <linux/export.h>
#include <linux/user_namespace.h>
+#include <linux/proc_fs.h>
#include <linux/proc_ns.h>
/*
@@ -208,6 +209,7 @@ struct user_struct *alloc_uid(kuid_t uid)
}
spin_unlock_irq(&uidhash_lock);
}
+ proc_register_uid(uid);
return up;
@@ -229,6 +231,7 @@ static int __init uid_cache_init(void)
spin_lock_irq(&uidhash_lock);
uid_hash_insert(&root_user, uidhashentry(GLOBAL_ROOT_UID));
spin_unlock_irq(&uidhash_lock);
+ proc_register_uid(GLOBAL_ROOT_UID);
return 0;
}
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 1573d1b..2950e75 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -911,6 +911,26 @@ struct task_struct *wq_worker_sleeping(struct task_struct *task)
}
/**
+ * wq_worker_last_func - retrieve worker's last work function
+ *
+ * Determine the last function a worker executed. This is called from
+ * the scheduler to get a worker's last known identity.
+ *
+ * CONTEXT:
+ * spin_lock_irq(rq->lock)
+ *
+ * Return:
+ * The last work function %current executed as a worker, NULL if it
+ * hasn't executed any work yet.
+ */
+work_func_t wq_worker_last_func(struct task_struct *task)
+{
+ struct worker *worker = kthread_data(task);
+
+ return worker->last_func;
+}
+
+/**
* worker_set_flags - set worker flags and adjust nr_running accordingly
* @worker: self
* @flags: flags to set
@@ -1511,7 +1531,9 @@ static void __queue_delayed_work(int cpu, struct workqueue_struct *wq,
struct work_struct *work = &dwork->work;
WARN_ON_ONCE(!wq);
+#ifndef CONFIG_CFI_CLANG
WARN_ON_ONCE(timer->function != delayed_work_timer_fn);
+#endif
WARN_ON_ONCE(timer_pending(timer));
WARN_ON_ONCE(!list_empty(&work->entry));
@@ -2184,6 +2206,9 @@ __acquires(&pool->lock)
if (unlikely(cpu_intensive))
worker_clr_flags(worker, WORKER_CPU_INTENSIVE);
+ /* tag the worker for identification in schedule() */
+ worker->last_func = worker->current_func;
+
/* we're done with it, release */
hash_del(&worker->hentry);
worker->current_work = NULL;
diff --git a/kernel/workqueue_internal.h b/kernel/workqueue_internal.h
index 66fbb5a..cb68b03 100644
--- a/kernel/workqueue_internal.h
+++ b/kernel/workqueue_internal.h
@@ -53,6 +53,9 @@ struct worker {
/* used only by rescuers to point to the target workqueue */
struct workqueue_struct *rescue_wq; /* I: the workqueue to rescue */
+
+ /* used by the scheduler to determine a worker's last known identity */
+ work_func_t last_func;
};
/**
@@ -67,9 +70,10 @@ static inline struct worker *current_wq_worker(void)
/*
* Scheduler hooks for concurrency managed workqueue. Only to be used from
- * sched/core.c and workqueue.c.
+ * sched/ and workqueue.c.
*/
void wq_worker_waking_up(struct task_struct *task, int cpu);
struct task_struct *wq_worker_sleeping(struct task_struct *task);
+work_func_t wq_worker_last_func(struct task_struct *task);
#endif /* _KERNEL_WORKQUEUE_INTERNAL_H */
diff --git a/lib/Kconfig b/lib/Kconfig
index a3928d4..10a4031 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -554,6 +554,11 @@
config UCS2_STRING
tristate
+#
+# generic vdso
+#
+source "lib/vdso/Kconfig"
+
source "lib/fonts/Kconfig"
config SG_SPLIT
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 46a910a..19c1b36 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -80,7 +80,7 @@
bool "Enable dynamic printk() support"
default n
depends on PRINTK
- depends on DEBUG_FS
+ depends on (DEBUG_FS || PROC_FS)
help
Compiles debug level messages into the kernel, which would not
@@ -98,8 +98,9 @@
Usage:
Dynamic debugging is controlled via the 'dynamic_debug/control' file,
- which is contained in the 'debugfs' filesystem. Thus, the debugfs
- filesystem must first be mounted before making use of this feature.
+ which is contained in the 'debugfs' filesystem or procfs.
+ Thus, the debugfs or procfs filesystem must first be mounted before
+ making use of this feature.
We refer the control file as: <debugfs>/dynamic_debug/control. This
file contains a list of the debug statements that can be enabled. The
format for each line of the file is:
@@ -222,7 +223,6 @@
config FRAME_WARN
int "Warn for stack frames larger than (needs gcc 4.4)"
range 0 8192
- default 3072 if KASAN_EXTRA
default 2048 if GCC_PLUGIN_LATENT_ENTROPY
default 1280 if (!64BIT && PARISC)
default 1024 if (!64BIT && !PARISC)
@@ -737,9 +737,9 @@
config ARCH_HAS_KCOV
bool
help
- KCOV does not have any arch-specific code, but currently it is enabled
- only for x86_64. KCOV requires testing on other archs, and most likely
- disabling of instrumentation for some early boot code.
+ An architecture should select this when it can successfully
+ build and run with CONFIG_KCOV. This typically requires
+ disabling instrumentation for some early boot code.
config CC_HAS_SANCOV_TRACE_PC
def_bool $(cc-option,-fsanitize-coverage=trace-pc)
@@ -1966,6 +1966,24 @@
If unsure, say N.
+config TEST_MEMINIT
+ tristate "Test heap/page initialization"
+ help
+ Test if the kernel is zero-initializing heap and page allocations.
+ This can be useful to test init_on_alloc and init_on_free features.
+
+ If unsure, say N.
+
+config TEST_STACKINIT
+ tristate "Test level of stack variable initialization"
+ help
+ Test if the kernel is zero-initializing stack variables and
+ padding. Coverage is controlled by compiler flags,
+ CONFIG_GCC_PLUGIN_STRUCTLEAK, CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF,
+ or CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF_ALL.
+
+ If unsure, say N.
+
endif # RUNTIME_TESTING_MENU
config MEMTEST
diff --git a/lib/Kconfig.kasan b/lib/Kconfig.kasan
index befb127..2a049c6 100644
--- a/lib/Kconfig.kasan
+++ b/lib/Kconfig.kasan
@@ -1,36 +1,82 @@
+# This config refers to the generic KASAN mode.
config HAVE_ARCH_KASAN
bool
-if HAVE_ARCH_KASAN
+config HAVE_ARCH_KASAN_SW_TAGS
+ bool
+
+config CC_HAS_KASAN_GENERIC
+ def_bool $(cc-option, -fsanitize=kernel-address)
+
+config CC_HAS_KASAN_SW_TAGS
+ def_bool $(cc-option, -fsanitize=kernel-hwaddress)
config KASAN
- bool "KASan: runtime memory debugger"
+ bool "KASAN: runtime memory debugger"
+ depends on (HAVE_ARCH_KASAN && CC_HAS_KASAN_GENERIC) || \
+ (HAVE_ARCH_KASAN_SW_TAGS && CC_HAS_KASAN_SW_TAGS)
+ depends on (SLUB && SYSFS) || (SLAB && !DEBUG_SLAB)
+ help
+ Enables KASAN (KernelAddressSANitizer) - runtime memory debugger,
+ designed to find out-of-bounds accesses and use-after-free bugs.
+ See Documentation/dev-tools/kasan.rst for details.
+
+choice
+ prompt "KASAN mode"
+ depends on KASAN
+ default KASAN_GENERIC
+ help
+ KASAN has two modes: generic KASAN (similar to userspace ASan,
+ x86_64/arm64/xtensa, enabled with CONFIG_KASAN_GENERIC) and
+ software tag-based KASAN (a version based on software memory
+ tagging, arm64 only, similar to userspace HWASan, enabled with
+ CONFIG_KASAN_SW_TAGS).
+ Both generic and tag-based KASAN are strictly debugging features.
+
+config KASAN_GENERIC
+ bool "Generic mode"
+ depends on HAVE_ARCH_KASAN && CC_HAS_KASAN_GENERIC
depends on (SLUB && SYSFS) || (SLAB && !DEBUG_SLAB)
select SLUB_DEBUG if SLUB
select CONSTRUCTORS
select STACKDEPOT
help
- Enables kernel address sanitizer - runtime memory debugger,
- designed to find out-of-bounds accesses and use-after-free bugs.
- This is strictly a debugging feature and it requires a gcc version
- of 4.9.2 or later. Detection of out of bounds accesses to stack or
- global variables requires gcc 5.0 or later.
- This feature consumes about 1/8 of available memory and brings about
- ~x3 performance slowdown.
+ Enables generic KASAN mode.
+ Supported in both GCC and Clang. With GCC it requires version 4.9.2
+ or later for basic support and version 5.0 or later for detection of
+ out-of-bounds accesses for stack and global variables and for inline
+ instrumentation mode (CONFIG_KASAN_INLINE). With Clang it requires
+ version 3.7.0 or later and it doesn't support detection of
+ out-of-bounds accesses for global variables yet.
+ This mode consumes about 1/8th of available memory at kernel start
+ and introduces an overhead of ~x1.5 for the rest of the allocations.
+ The performance slowdown is ~x3.
For better error detection enable CONFIG_STACKTRACE.
- Currently CONFIG_KASAN doesn't work with CONFIG_DEBUG_SLAB
+ Currently CONFIG_KASAN_GENERIC doesn't work with CONFIG_DEBUG_SLAB
(the resulting kernel does not boot).
-config KASAN_EXTRA
- bool "KAsan: extra checks"
- depends on KASAN && DEBUG_KERNEL && !COMPILE_TEST
+config KASAN_SW_TAGS
+ bool "Software tag-based mode"
+ depends on HAVE_ARCH_KASAN_SW_TAGS && CC_HAS_KASAN_SW_TAGS
+ depends on (SLUB && SYSFS) || (SLAB && !DEBUG_SLAB)
+ select SLUB_DEBUG if SLUB
+ select CONSTRUCTORS
+ select STACKDEPOT
help
- This enables further checks in the kernel address sanitizer, for now
- it only includes the address-use-after-scope check that can lead
- to excessive kernel stack usage, frame size warnings and longer
- compile time.
- https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81715 has more
+ Enables software tag-based KASAN mode.
+ This mode requires Top Byte Ignore support by the CPU and therefore
+ is only supported for arm64.
+ This mode requires Clang version 7.0.0 or later.
+ This mode consumes about 1/16th of available memory at kernel start
+ and introduces an overhead of ~20% for the rest of the allocations.
+ This mode may potentially introduce problems relating to pointer
+ casting and comparison, as it embeds tags into the top byte of each
+ pointer.
+ For better error detection enable CONFIG_STACKTRACE.
+ Currently CONFIG_KASAN_SW_TAGS doesn't work with CONFIG_DEBUG_SLAB
+ (the resulting kernel does not boot).
+endchoice
choice
prompt "Instrumentation type"
@@ -53,16 +99,35 @@
memory accesses. This is faster than outline (in some workloads
it gives about x2 boost over outline instrumentation), but
make kernel's .text size much bigger.
- This requires a gcc version of 5.0 or later.
+ For CONFIG_KASAN_GENERIC this requires GCC 5.0 or later.
endchoice
+config KASAN_STACK_ENABLE
+ bool "Enable stack instrumentation (unsafe)" if CC_IS_CLANG && !COMPILE_TEST
+ depends on KASAN
+ help
+ The LLVM stack address sanitizer has a know problem that
+ causes excessive stack usage in a lot of functions, see
+ https://bugs.llvm.org/show_bug.cgi?id=38809
+ Disabling asan-stack makes it safe to run kernels build
+ with clang-8 with KASAN enabled, though it loses some of
+ the functionality.
+ This feature is always disabled when compile-testing with clang
+ to avoid cluttering the output in stack overflow warnings,
+ but clang users can still enable it for builds without
+ CONFIG_COMPILE_TEST. On gcc it is assumed to always be safe
+ to use and enabled by default.
+
+config KASAN_STACK
+ int
+ default 1 if KASAN_STACK_ENABLE || CC_IS_GCC
+ default 0
+
config TEST_KASAN
- tristate "Module for testing kasan for bug detection"
+ tristate "Module for testing KASAN for bug detection"
depends on m && KASAN
help
This is a test module doing various nasty things like
out of bounds accesses, use after free. It is useful for testing
- kernel debugging features like kernel address sanitizer.
-
-endif
+ kernel debugging features like KASAN.
diff --git a/lib/Makefile b/lib/Makefile
index 1d7a705..624a981 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -31,7 +31,7 @@
lib-y := ctype.o string.o vsprintf.o cmdline.o \
rbtree.o radix-tree.o timerqueue.o\
idr.o int_sqrt.o extable.o \
- sha1.o chacha20.o irq_regs.o argv_split.o \
+ sha1.o irq_regs.o argv_split.o \
flex_proportions.o ratelimit.o show_mem.o \
is_single_threaded.o plist.o decompress.o kobject_uevent.o \
earlycpio.o seq_buf.o siphash.o dec_and_lock.o \
@@ -82,6 +82,11 @@
obj-$(CONFIG_TEST_PARMAN) += test_parman.o
obj-$(CONFIG_TEST_KMOD) += test_kmod.o
obj-$(CONFIG_TEST_DEBUG_VIRTUAL) += test_debug_virtual.o
+obj-$(CONFIG_TEST_MEMCAT_P) += test_memcat_p.o
+obj-$(CONFIG_TEST_OBJAGG) += test_objagg.o
+CFLAGS_test_stackinit.o += $(call cc-disable-warning, switch-unreachable)
+obj-$(CONFIG_TEST_STACKINIT) += test_stackinit.o
+obj-$(CONFIG_TEST_MEMINIT) += test_meminit.o
ifeq ($(CONFIG_DEBUG_KOBJECT),y)
CFLAGS_kobject.o += -DDEBUG
@@ -91,6 +96,8 @@
obj-$(CONFIG_DEBUG_INFO_REDUCED) += debug_info.o
CFLAGS_debug_info.o += $(call cc-option, -femit-struct-debug-detailed=any)
+obj-y += crypto/
+
obj-$(CONFIG_GENERIC_IOMAP) += iomap.o
obj-$(CONFIG_GENERIC_PCI_IOMAP) += pci_iomap.o
obj-$(CONFIG_HAS_IOMEM) += iomap_copy.o devres.o
diff --git a/lib/chacha20.c b/lib/chacha20.c
deleted file mode 100644
index d907fec..0000000
--- a/lib/chacha20.c
+++ /dev/null
@@ -1,74 +0,0 @@
-/*
- * ChaCha20 256-bit cipher algorithm, RFC7539
- *
- * Copyright (C) 2015 Martin Willi
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#include <linux/kernel.h>
-#include <linux/export.h>
-#include <linux/bitops.h>
-#include <linux/cryptohash.h>
-#include <asm/unaligned.h>
-#include <crypto/chacha20.h>
-
-void chacha20_block(u32 *state, u8 *stream)
-{
- u32 x[16];
- int i;
-
- for (i = 0; i < ARRAY_SIZE(x); i++)
- x[i] = state[i];
-
- for (i = 0; i < 20; i += 2) {
- x[0] += x[4]; x[12] = rol32(x[12] ^ x[0], 16);
- x[1] += x[5]; x[13] = rol32(x[13] ^ x[1], 16);
- x[2] += x[6]; x[14] = rol32(x[14] ^ x[2], 16);
- x[3] += x[7]; x[15] = rol32(x[15] ^ x[3], 16);
-
- x[8] += x[12]; x[4] = rol32(x[4] ^ x[8], 12);
- x[9] += x[13]; x[5] = rol32(x[5] ^ x[9], 12);
- x[10] += x[14]; x[6] = rol32(x[6] ^ x[10], 12);
- x[11] += x[15]; x[7] = rol32(x[7] ^ x[11], 12);
-
- x[0] += x[4]; x[12] = rol32(x[12] ^ x[0], 8);
- x[1] += x[5]; x[13] = rol32(x[13] ^ x[1], 8);
- x[2] += x[6]; x[14] = rol32(x[14] ^ x[2], 8);
- x[3] += x[7]; x[15] = rol32(x[15] ^ x[3], 8);
-
- x[8] += x[12]; x[4] = rol32(x[4] ^ x[8], 7);
- x[9] += x[13]; x[5] = rol32(x[5] ^ x[9], 7);
- x[10] += x[14]; x[6] = rol32(x[6] ^ x[10], 7);
- x[11] += x[15]; x[7] = rol32(x[7] ^ x[11], 7);
-
- x[0] += x[5]; x[15] = rol32(x[15] ^ x[0], 16);
- x[1] += x[6]; x[12] = rol32(x[12] ^ x[1], 16);
- x[2] += x[7]; x[13] = rol32(x[13] ^ x[2], 16);
- x[3] += x[4]; x[14] = rol32(x[14] ^ x[3], 16);
-
- x[10] += x[15]; x[5] = rol32(x[5] ^ x[10], 12);
- x[11] += x[12]; x[6] = rol32(x[6] ^ x[11], 12);
- x[8] += x[13]; x[7] = rol32(x[7] ^ x[8], 12);
- x[9] += x[14]; x[4] = rol32(x[4] ^ x[9], 12);
-
- x[0] += x[5]; x[15] = rol32(x[15] ^ x[0], 8);
- x[1] += x[6]; x[12] = rol32(x[12] ^ x[1], 8);
- x[2] += x[7]; x[13] = rol32(x[13] ^ x[2], 8);
- x[3] += x[4]; x[14] = rol32(x[14] ^ x[3], 8);
-
- x[10] += x[15]; x[5] = rol32(x[5] ^ x[10], 7);
- x[11] += x[12]; x[6] = rol32(x[6] ^ x[11], 7);
- x[8] += x[13]; x[7] = rol32(x[7] ^ x[8], 7);
- x[9] += x[14]; x[4] = rol32(x[4] ^ x[9], 7);
- }
-
- for (i = 0; i < ARRAY_SIZE(x); i++)
- put_unaligned_le32(x[i] + state[i], &stream[i * sizeof(u32)]);
-
- state[12]++;
-}
-EXPORT_SYMBOL(chacha20_block);
diff --git a/lib/crypto/Kconfig b/lib/crypto/Kconfig
new file mode 100644
index 0000000..e1059fa
--- /dev/null
+++ b/lib/crypto/Kconfig
@@ -0,0 +1,118 @@
+# SPDX-License-Identifier: GPL-2.0
+
+comment "Crypto library routines"
+
+config CRYPTO_ARCH_HAVE_LIB_BLAKE2S
+ tristate
+ help
+ Declares whether the architecture provides an arch-specific
+ accelerated implementation of the Blake2s library interface,
+ either builtin or as a module.
+
+config CRYPTO_LIB_BLAKE2S_GENERIC
+ tristate
+ help
+ This symbol can be depended upon by arch implementations of the
+ Blake2s library interface that require the generic code as a
+ fallback, e.g., for SIMD implementations. If no arch specific
+ implementation is enabled, this implementation serves the users
+ of CRYPTO_LIB_BLAKE2S.
+
+config CRYPTO_LIB_BLAKE2S
+ tristate "BLAKE2s hash function library"
+ depends on CRYPTO_ARCH_HAVE_LIB_BLAKE2S || !CRYPTO_ARCH_HAVE_LIB_BLAKE2S
+ select CRYPTO_LIB_BLAKE2S_GENERIC if CRYPTO_ARCH_HAVE_LIB_BLAKE2S=n
+ help
+ Enable the Blake2s library interface. This interface may be fulfilled
+ by either the generic implementation or an arch-specific one, if one
+ is available and enabled.
+
+config CRYPTO_ARCH_HAVE_LIB_CHACHA
+ tristate
+ help
+ Declares whether the architecture provides an arch-specific
+ accelerated implementation of the ChaCha library interface,
+ either builtin or as a module.
+
+config CRYPTO_LIB_CHACHA_GENERIC
+ tristate
+ select CRYPTO_ALGAPI
+ help
+ This symbol can be depended upon by arch implementations of the
+ ChaCha library interface that require the generic code as a
+ fallback, e.g., for SIMD implementations. If no arch specific
+ implementation is enabled, this implementation serves the users
+ of CRYPTO_LIB_CHACHA.
+
+config CRYPTO_LIB_CHACHA
+ tristate "ChaCha library interface"
+ depends on CRYPTO_ARCH_HAVE_LIB_CHACHA || !CRYPTO_ARCH_HAVE_LIB_CHACHA
+ select CRYPTO_LIB_CHACHA_GENERIC if CRYPTO_ARCH_HAVE_LIB_CHACHA=n
+ help
+ Enable the ChaCha library interface. This interface may be fulfilled
+ by either the generic implementation or an arch-specific one, if one
+ is available and enabled.
+
+config CRYPTO_LIB_POLY1305_RSIZE
+ int
+ default 2 if MIPS
+ default 11 if X86_64
+ default 9 if ARM || ARM64
+ default 1
+
+config CRYPTO_ARCH_HAVE_LIB_POLY1305
+ tristate
+ help
+ Declares whether the architecture provides an arch-specific
+ accelerated implementation of the Poly1305 library interface,
+ either builtin or as a module.
+
+config CRYPTO_LIB_POLY1305_GENERIC
+ tristate
+ help
+ This symbol can be depended upon by arch implementations of the
+ Poly1305 library interface that require the generic code as a
+ fallback, e.g., for SIMD implementations. If no arch specific
+ implementation is enabled, this implementation serves the users
+ of CRYPTO_LIB_POLY1305.
+
+config CRYPTO_LIB_POLY1305
+ tristate "Poly1305 library interface"
+ depends on CRYPTO_ARCH_HAVE_LIB_POLY1305 || !CRYPTO_ARCH_HAVE_LIB_POLY1305
+ select CRYPTO_LIB_POLY1305_GENERIC if CRYPTO_ARCH_HAVE_LIB_POLY1305=n
+ help
+ Enable the Poly1305 library interface. This interface may be fulfilled
+ by either the generic implementation or an arch-specific one, if one
+ is available and enabled.
+
+config CRYPTO_ARCH_HAVE_LIB_CURVE25519
+ tristate
+ help
+ Declares whether the architecture provides an arch-specific
+ accelerated implementation of the Curve25519 library interface,
+ either builtin or as a module.
+
+config CRYPTO_LIB_CURVE25519_GENERIC
+ tristate
+ help
+ This symbol can be depended upon by arch implementations of the
+ Curve25519 library interface that require the generic code as a
+ fallback, e.g., for SIMD implementations. If no arch specific
+ implementation is enabled, this implementation serves the users
+ of CRYPTO_LIB_CURVE25519.
+
+config CRYPTO_LIB_CURVE25519
+ tristate "Curve25519 scalar multiplication library"
+ depends on CRYPTO_ARCH_HAVE_LIB_CURVE25519 || !CRYPTO_ARCH_HAVE_LIB_CURVE25519
+ select CRYPTO_LIB_CURVE25519_GENERIC if CRYPTO_ARCH_HAVE_LIB_CURVE25519=n
+ help
+ Enable the Curve25519 library interface. This interface may be
+ fulfilled by either the generic implementation or an arch-specific
+ one, if one is available and enabled.
+
+config CRYPTO_LIB_CHACHA20POLY1305
+ tristate "ChaCha20-Poly1305 AEAD support (8-byte nonce library version)"
+ depends on CRYPTO_ARCH_HAVE_LIB_CHACHA || !CRYPTO_ARCH_HAVE_LIB_CHACHA
+ depends on CRYPTO_ARCH_HAVE_LIB_POLY1305 || !CRYPTO_ARCH_HAVE_LIB_POLY1305
+ select CRYPTO_LIB_CHACHA
+ select CRYPTO_LIB_POLY1305
diff --git a/lib/crypto/Makefile b/lib/crypto/Makefile
new file mode 100644
index 0000000..f96fa8c
--- /dev/null
+++ b/lib/crypto/Makefile
@@ -0,0 +1,33 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# chacha is used by the /dev/random driver which is always builtin
+obj-y += chacha.o
+obj-$(CONFIG_CRYPTO_LIB_CHACHA_GENERIC) += libchacha.o
+
+obj-$(CONFIG_CRYPTO_LIB_POLY1305_GENERIC) += libpoly1305.o
+libpoly1305-y := poly1305-donna32.o
+libpoly1305-$(CONFIG_ARCH_SUPPORTS_INT128) := poly1305-donna64.o
+libpoly1305-y += poly1305.o
+
+obj-$(CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC) += libblake2s-generic.o
+libblake2s-generic-y += blake2s-generic.o
+
+obj-$(CONFIG_CRYPTO_LIB_BLAKE2S) += libblake2s.o
+libblake2s-y += blake2s.o
+
+obj-$(CONFIG_CRYPTO_LIB_CHACHA20POLY1305) += libchacha20poly1305.o
+libchacha20poly1305-y += chacha20poly1305.o
+
+obj-$(CONFIG_CRYPTO_LIB_CURVE25519_GENERIC) += libcurve25519-generic.o
+libcurve25519-generic-y := curve25519-fiat32.o
+libcurve25519-generic-$(CONFIG_ARCH_SUPPORTS_INT128) := curve25519-hacl64.o
+libcurve25519-generic-y += curve25519-generic.o
+
+obj-$(CONFIG_CRYPTO_LIB_CURVE25519) += libcurve25519.o
+libcurve25519-y += curve25519.o
+
+ifneq ($(CONFIG_CRYPTO_MANAGER_DISABLE_TESTS),y)
+libblake2s-y += blake2s-selftest.o
+libchacha20poly1305-y += chacha20poly1305-selftest.o
+libcurve25519-y += curve25519-selftest.o
+endif
diff --git a/lib/crypto/blake2s-generic.c b/lib/crypto/blake2s-generic.c
new file mode 100644
index 0000000..04ff8df
--- /dev/null
+++ b/lib/crypto/blake2s-generic.c
@@ -0,0 +1,111 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ *
+ * This is an implementation of the BLAKE2s hash and PRF functions.
+ *
+ * Information: https://blake2.net/
+ *
+ */
+
+#include <crypto/internal/blake2s.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/bug.h>
+#include <asm/unaligned.h>
+
+static const u8 blake2s_sigma[10][16] = {
+ { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 },
+ { 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3 },
+ { 11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4 },
+ { 7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8 },
+ { 9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13 },
+ { 2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9 },
+ { 12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11 },
+ { 13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10 },
+ { 6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5 },
+ { 10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13, 0 },
+};
+
+static inline void blake2s_increment_counter(struct blake2s_state *state,
+ const u32 inc)
+{
+ state->t[0] += inc;
+ state->t[1] += (state->t[0] < inc);
+}
+
+void blake2s_compress_generic(struct blake2s_state *state,const u8 *block,
+ size_t nblocks, const u32 inc)
+{
+ u32 m[16];
+ u32 v[16];
+ int i;
+
+ WARN_ON(IS_ENABLED(DEBUG) &&
+ (nblocks > 1 && inc != BLAKE2S_BLOCK_SIZE));
+
+ while (nblocks > 0) {
+ blake2s_increment_counter(state, inc);
+ memcpy(m, block, BLAKE2S_BLOCK_SIZE);
+ le32_to_cpu_array(m, ARRAY_SIZE(m));
+ memcpy(v, state->h, 32);
+ v[ 8] = BLAKE2S_IV0;
+ v[ 9] = BLAKE2S_IV1;
+ v[10] = BLAKE2S_IV2;
+ v[11] = BLAKE2S_IV3;
+ v[12] = BLAKE2S_IV4 ^ state->t[0];
+ v[13] = BLAKE2S_IV5 ^ state->t[1];
+ v[14] = BLAKE2S_IV6 ^ state->f[0];
+ v[15] = BLAKE2S_IV7 ^ state->f[1];
+
+#define G(r, i, a, b, c, d) do { \
+ a += b + m[blake2s_sigma[r][2 * i + 0]]; \
+ d = ror32(d ^ a, 16); \
+ c += d; \
+ b = ror32(b ^ c, 12); \
+ a += b + m[blake2s_sigma[r][2 * i + 1]]; \
+ d = ror32(d ^ a, 8); \
+ c += d; \
+ b = ror32(b ^ c, 7); \
+} while (0)
+
+#define ROUND(r) do { \
+ G(r, 0, v[0], v[ 4], v[ 8], v[12]); \
+ G(r, 1, v[1], v[ 5], v[ 9], v[13]); \
+ G(r, 2, v[2], v[ 6], v[10], v[14]); \
+ G(r, 3, v[3], v[ 7], v[11], v[15]); \
+ G(r, 4, v[0], v[ 5], v[10], v[15]); \
+ G(r, 5, v[1], v[ 6], v[11], v[12]); \
+ G(r, 6, v[2], v[ 7], v[ 8], v[13]); \
+ G(r, 7, v[3], v[ 4], v[ 9], v[14]); \
+} while (0)
+ ROUND(0);
+ ROUND(1);
+ ROUND(2);
+ ROUND(3);
+ ROUND(4);
+ ROUND(5);
+ ROUND(6);
+ ROUND(7);
+ ROUND(8);
+ ROUND(9);
+
+#undef G
+#undef ROUND
+
+ for (i = 0; i < 8; ++i)
+ state->h[i] ^= v[i] ^ v[i + 8];
+
+ block += BLAKE2S_BLOCK_SIZE;
+ --nblocks;
+ }
+}
+
+EXPORT_SYMBOL(blake2s_compress_generic);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("BLAKE2s hash function");
+MODULE_AUTHOR("Jason A. Donenfeld <Jason@zx2c4.com>");
diff --git a/lib/crypto/blake2s-selftest.c b/lib/crypto/blake2s-selftest.c
new file mode 100644
index 0000000..79ef404
--- /dev/null
+++ b/lib/crypto/blake2s-selftest.c
@@ -0,0 +1,622 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#include <crypto/blake2s.h>
+#include <linux/string.h>
+
+/*
+ * blake2s_testvecs[] generated with the program below (using libb2-dev and
+ * libssl-dev [OpenSSL])
+ *
+ * #include <blake2.h>
+ * #include <stdint.h>
+ * #include <stdio.h>
+ *
+ * #include <openssl/evp.h>
+ * #include <openssl/hmac.h>
+ *
+ * #define BLAKE2S_TESTVEC_COUNT 256
+ *
+ * static void print_vec(const uint8_t vec[], int len)
+ * {
+ * int i;
+ *
+ * printf(" { ");
+ * for (i = 0; i < len; i++) {
+ * if (i && (i % 12) == 0)
+ * printf("\n ");
+ * printf("0x%02x, ", vec[i]);
+ * }
+ * printf("},\n");
+ * }
+ *
+ * int main(void)
+ * {
+ * uint8_t key[BLAKE2S_KEYBYTES];
+ * uint8_t buf[BLAKE2S_TESTVEC_COUNT];
+ * uint8_t hash[BLAKE2S_OUTBYTES];
+ * int i, j;
+ *
+ * key[0] = key[1] = 1;
+ * for (i = 2; i < BLAKE2S_KEYBYTES; ++i)
+ * key[i] = key[i - 2] + key[i - 1];
+ *
+ * for (i = 0; i < BLAKE2S_TESTVEC_COUNT; ++i)
+ * buf[i] = (uint8_t)i;
+ *
+ * printf("static const u8 blake2s_testvecs[][BLAKE2S_HASH_SIZE] __initconst = {\n");
+ *
+ * for (i = 0; i < BLAKE2S_TESTVEC_COUNT; ++i) {
+ * int outlen = 1 + i % BLAKE2S_OUTBYTES;
+ * int keylen = (13 * i) % (BLAKE2S_KEYBYTES + 1);
+ *
+ * blake2s(hash, buf, key + BLAKE2S_KEYBYTES - keylen, outlen, i,
+ * keylen);
+ * print_vec(hash, outlen);
+ * }
+ * printf("};\n\n");
+ *
+ * printf("static const u8 blake2s_hmac_testvecs[][BLAKE2S_HASH_SIZE] __initconst = {\n");
+ *
+ * HMAC(EVP_blake2s256(), key, sizeof(key), buf, sizeof(buf), hash, NULL);
+ * print_vec(hash, BLAKE2S_OUTBYTES);
+ *
+ * HMAC(EVP_blake2s256(), buf, sizeof(buf), key, sizeof(key), hash, NULL);
+ * print_vec(hash, BLAKE2S_OUTBYTES);
+ *
+ * printf("};\n");
+ *
+ * return 0;
+ *}
+ */
+static const u8 blake2s_testvecs[][BLAKE2S_HASH_SIZE] __initconst = {
+ { 0xa1, },
+ { 0x7c, 0x89, },
+ { 0x74, 0x0e, 0xd4, },
+ { 0x47, 0x0c, 0x21, 0x15, },
+ { 0x18, 0xd6, 0x9c, 0xa6, 0xc4, },
+ { 0x13, 0x5d, 0x16, 0x63, 0x2e, 0xf9, },
+ { 0x2c, 0xb5, 0x04, 0xb7, 0x99, 0xe2, 0x73, },
+ { 0x9a, 0x0f, 0xd2, 0x39, 0xd6, 0x68, 0x1b, 0x92, },
+ { 0xc8, 0xde, 0x7a, 0xea, 0x2f, 0xf4, 0xd2, 0xe3, 0x2b, },
+ { 0x5b, 0xf9, 0x43, 0x52, 0x0c, 0x12, 0xba, 0xb5, 0x93, 0x9f, },
+ { 0xc6, 0x2c, 0x4e, 0x80, 0xfc, 0x32, 0x5b, 0x33, 0xb8, 0xb8, 0x0a, },
+ { 0xa7, 0x5c, 0xfd, 0x3a, 0xcc, 0xbf, 0x90, 0xca, 0xb7, 0x97, 0xde, 0xd8, },
+ { 0x66, 0xca, 0x3c, 0xc4, 0x19, 0xef, 0x92, 0x66, 0x3f, 0x21, 0x8f, 0xda,
+ 0xb7, },
+ { 0xba, 0xe5, 0xbb, 0x30, 0x25, 0x94, 0x6d, 0xc3, 0x89, 0x09, 0xc4, 0x25,
+ 0x52, 0x3e, },
+ { 0xa2, 0xef, 0x0e, 0x52, 0x0b, 0x5f, 0xa2, 0x01, 0x6d, 0x0a, 0x25, 0xbc,
+ 0x57, 0xe2, 0x27, },
+ { 0x4f, 0xe0, 0xf9, 0x52, 0x12, 0xda, 0x84, 0xb7, 0xab, 0xae, 0xb0, 0xa6,
+ 0x47, 0x2a, 0xc7, 0xf5, },
+ { 0x56, 0xe7, 0xa8, 0x1c, 0x4c, 0xca, 0xed, 0x90, 0x31, 0xec, 0x87, 0x43,
+ 0xe7, 0x72, 0x08, 0xec, 0xbe, },
+ { 0x7e, 0xdf, 0x80, 0x1c, 0x93, 0x33, 0xfd, 0x53, 0x44, 0xba, 0xfd, 0x96,
+ 0xe1, 0xbb, 0xb5, 0x65, 0xa5, 0x00, },
+ { 0xec, 0x6b, 0xed, 0xf7, 0x7b, 0x62, 0x1d, 0x7d, 0xf4, 0x82, 0xf3, 0x1e,
+ 0x18, 0xff, 0x2b, 0xc4, 0x06, 0x20, 0x2a, },
+ { 0x74, 0x98, 0xd7, 0x68, 0x63, 0xed, 0x87, 0xe4, 0x5d, 0x8d, 0x9e, 0x1d,
+ 0xfd, 0x2a, 0xbb, 0x86, 0xac, 0xe9, 0x2a, 0x89, },
+ { 0x89, 0xc3, 0x88, 0xce, 0x2b, 0x33, 0x1e, 0x10, 0xd1, 0x37, 0x20, 0x86,
+ 0x28, 0x43, 0x70, 0xd9, 0xfb, 0x96, 0xd9, 0xb5, 0xd3, },
+ { 0xcb, 0x56, 0x74, 0x41, 0x8d, 0x80, 0x01, 0x9a, 0x6b, 0x38, 0xe1, 0x41,
+ 0xad, 0x9c, 0x62, 0x74, 0xce, 0x35, 0xd5, 0x6c, 0x89, 0x6e, },
+ { 0x79, 0xaf, 0x94, 0x59, 0x99, 0x26, 0xe1, 0xc9, 0x34, 0xfe, 0x7c, 0x22,
+ 0xf7, 0x43, 0xd7, 0x65, 0xd4, 0x48, 0x18, 0xac, 0x3d, 0xfd, 0x93, },
+ { 0x85, 0x0d, 0xff, 0xb8, 0x3e, 0x87, 0x41, 0xb0, 0x95, 0xd3, 0x3d, 0x00,
+ 0x47, 0x55, 0x9e, 0xd2, 0x69, 0xea, 0xbf, 0xe9, 0x7a, 0x2d, 0x61, 0x45, },
+ { 0x03, 0xe0, 0x85, 0xec, 0x54, 0xb5, 0x16, 0x53, 0xa8, 0xc4, 0x71, 0xe9,
+ 0x6a, 0xe7, 0xcb, 0xc4, 0x15, 0x02, 0xfc, 0x34, 0xa4, 0xa4, 0x28, 0x13,
+ 0xd1, },
+ { 0xe3, 0x34, 0x4b, 0xe1, 0xd0, 0x4b, 0x55, 0x61, 0x8f, 0xc0, 0x24, 0x05,
+ 0xe6, 0xe0, 0x3d, 0x70, 0x24, 0x4d, 0xda, 0xb8, 0x91, 0x05, 0x29, 0x07,
+ 0x01, 0x3e, },
+ { 0x61, 0xff, 0x01, 0x72, 0xb1, 0x4d, 0xf6, 0xfe, 0xd1, 0xd1, 0x08, 0x74,
+ 0xe6, 0x91, 0x44, 0xeb, 0x61, 0xda, 0x40, 0xaf, 0xfc, 0x8c, 0x91, 0x6b,
+ 0xec, 0x13, 0xed, },
+ { 0xd4, 0x40, 0xd2, 0xa0, 0x7f, 0xc1, 0x58, 0x0c, 0x85, 0xa0, 0x86, 0xc7,
+ 0x86, 0xb9, 0x61, 0xc9, 0xea, 0x19, 0x86, 0x1f, 0xab, 0x07, 0xce, 0x37,
+ 0x72, 0x67, 0x09, 0xfc, },
+ { 0x9e, 0xf8, 0x18, 0x67, 0x93, 0x10, 0x9b, 0x39, 0x75, 0xe8, 0x8b, 0x38,
+ 0x82, 0x7d, 0xb8, 0xb7, 0xa5, 0xaf, 0xe6, 0x6a, 0x22, 0x5e, 0x1f, 0x9c,
+ 0x95, 0x29, 0x19, 0xf2, 0x4b, },
+ { 0xc8, 0x62, 0x25, 0xf5, 0x98, 0xc9, 0xea, 0xe5, 0x29, 0x3a, 0xd3, 0x22,
+ 0xeb, 0xeb, 0x07, 0x7c, 0x15, 0x07, 0xee, 0x15, 0x61, 0xbb, 0x05, 0x30,
+ 0x99, 0x7f, 0x11, 0xf6, 0x0a, 0x1d, },
+ { 0x68, 0x70, 0xf7, 0x90, 0xa1, 0x8b, 0x1f, 0x0f, 0xbb, 0xce, 0xd2, 0x0e,
+ 0x33, 0x1f, 0x7f, 0xa9, 0x78, 0xa8, 0xa6, 0x81, 0x66, 0xab, 0x8d, 0xcd,
+ 0x58, 0x55, 0x3a, 0x0b, 0x7a, 0xdb, 0xb5, },
+ { 0xdd, 0x35, 0xd2, 0xb4, 0xf6, 0xc7, 0xea, 0xab, 0x64, 0x24, 0x4e, 0xfe,
+ 0xe5, 0x3d, 0x4e, 0x95, 0x8b, 0x6d, 0x6c, 0xbc, 0xb0, 0xf8, 0x88, 0x61,
+ 0x09, 0xb7, 0x78, 0xa3, 0x31, 0xfe, 0xd9, 0x2f, },
+ { 0x0a, },
+ { 0x6e, 0xd4, },
+ { 0x64, 0xe9, 0xd1, },
+ { 0x30, 0xdd, 0x71, 0xef, },
+ { 0x11, 0xb5, 0x0c, 0x87, 0xc9, },
+ { 0x06, 0x1c, 0x6d, 0x04, 0x82, 0xd0, },
+ { 0x5c, 0x42, 0x0b, 0xee, 0xc5, 0x9c, 0xb2, },
+ { 0xe8, 0x29, 0xd6, 0xb4, 0x5d, 0xf7, 0x2b, 0x93, },
+ { 0x18, 0xca, 0x27, 0x72, 0x43, 0x39, 0x16, 0xbc, 0x6a, },
+ { 0x39, 0x8f, 0xfd, 0x64, 0xf5, 0x57, 0x23, 0xb0, 0x45, 0xf8, },
+ { 0xbb, 0x3a, 0x78, 0x6b, 0x02, 0x1d, 0x0b, 0x16, 0xe3, 0xb2, 0x9a, },
+ { 0xb8, 0xb4, 0x0b, 0xe5, 0xd4, 0x1d, 0x0d, 0x85, 0x49, 0x91, 0x35, 0xfa, },
+ { 0x6d, 0x48, 0x2a, 0x0c, 0x42, 0x08, 0xbd, 0xa9, 0x78, 0x6f, 0x18, 0xaf,
+ 0xe2, },
+ { 0x10, 0x45, 0xd4, 0x58, 0x88, 0xec, 0x4e, 0x1e, 0xf6, 0x14, 0x92, 0x64,
+ 0x7e, 0xb0, },
+ { 0x8b, 0x0b, 0x95, 0xee, 0x92, 0xc6, 0x3b, 0x91, 0xf1, 0x1e, 0xeb, 0x51,
+ 0x98, 0x0a, 0x8d, },
+ { 0xa3, 0x50, 0x4d, 0xa5, 0x1d, 0x03, 0x68, 0xe9, 0x57, 0x78, 0xd6, 0x04,
+ 0xf1, 0xc3, 0x94, 0xd8, },
+ { 0xb8, 0x66, 0x6e, 0xdd, 0x46, 0x15, 0xae, 0x3d, 0x83, 0x7e, 0xcf, 0xe7,
+ 0x2c, 0xe8, 0x8f, 0xc7, 0x34, },
+ { 0x2e, 0xc0, 0x1f, 0x29, 0xea, 0xf6, 0xb9, 0xe2, 0xc2, 0x93, 0xeb, 0x41,
+ 0x0d, 0xf0, 0x0a, 0x13, 0x0e, 0xa2, },
+ { 0x71, 0xb8, 0x33, 0xa9, 0x1b, 0xac, 0xf1, 0xb5, 0x42, 0x8f, 0x5e, 0x81,
+ 0x34, 0x43, 0xb7, 0xa4, 0x18, 0x5c, 0x47, },
+ { 0xda, 0x45, 0xb8, 0x2e, 0x82, 0x1e, 0xc0, 0x59, 0x77, 0x9d, 0xfa, 0xb4,
+ 0x1c, 0x5e, 0xa0, 0x2b, 0x33, 0x96, 0x5a, 0x58, },
+ { 0xe3, 0x09, 0x05, 0xa9, 0xeb, 0x48, 0x13, 0xad, 0x71, 0x88, 0x81, 0x9a,
+ 0x3e, 0x2c, 0xe1, 0x23, 0x99, 0x13, 0x35, 0x9f, 0xb5, },
+ { 0xb7, 0x86, 0x2d, 0x16, 0xe1, 0x04, 0x00, 0x47, 0x47, 0x61, 0x31, 0xfb,
+ 0x14, 0xac, 0xd8, 0xe9, 0xe3, 0x49, 0xbd, 0xf7, 0x9c, 0x3f, },
+ { 0x7f, 0xd9, 0x95, 0xa8, 0xa7, 0xa0, 0xcc, 0xba, 0xef, 0xb1, 0x0a, 0xa9,
+ 0x21, 0x62, 0x08, 0x0f, 0x1b, 0xff, 0x7b, 0x9d, 0xae, 0xb2, 0x95, },
+ { 0x85, 0x99, 0xea, 0x33, 0xe0, 0x56, 0xff, 0x13, 0xc6, 0x61, 0x8c, 0xf9,
+ 0x57, 0x05, 0x03, 0x11, 0xf9, 0xfb, 0x3a, 0xf7, 0xce, 0xbb, 0x52, 0x30, },
+ { 0xb2, 0x72, 0x9c, 0xf8, 0x77, 0x4e, 0x8f, 0x6b, 0x01, 0x6c, 0xff, 0x4e,
+ 0x4f, 0x02, 0xd2, 0xbc, 0xeb, 0x51, 0x28, 0x99, 0x50, 0xab, 0xc4, 0x42,
+ 0xe3, },
+ { 0x8b, 0x0a, 0xb5, 0x90, 0x8f, 0xf5, 0x7b, 0xdd, 0xba, 0x47, 0x37, 0xc9,
+ 0x2a, 0xd5, 0x4b, 0x25, 0x08, 0x8b, 0x02, 0x17, 0xa7, 0x9e, 0x6b, 0x6e,
+ 0xe3, 0x90, },
+ { 0x90, 0xdd, 0xf7, 0x75, 0xa7, 0xa3, 0x99, 0x5e, 0x5b, 0x7d, 0x75, 0xc3,
+ 0x39, 0x6b, 0xa0, 0xe2, 0x44, 0x53, 0xb1, 0x9e, 0xc8, 0xf1, 0x77, 0x10,
+ 0x58, 0x06, 0x9a, },
+ { 0x99, 0x52, 0xf0, 0x49, 0xa8, 0x8c, 0xec, 0xa6, 0x97, 0x32, 0x13, 0xb5,
+ 0xf7, 0xa3, 0x8e, 0xfb, 0x4b, 0x59, 0x31, 0x3d, 0x01, 0x59, 0x98, 0x5d,
+ 0x53, 0x03, 0x1a, 0x39, },
+ { 0x9f, 0xe0, 0xc2, 0xe5, 0x5d, 0x93, 0xd6, 0x9b, 0x47, 0x8f, 0x9b, 0xe0,
+ 0x26, 0x35, 0x84, 0x20, 0x1d, 0xc5, 0x53, 0x10, 0x0f, 0x22, 0xb9, 0xb5,
+ 0xd4, 0x36, 0xb1, 0xac, 0x73, },
+ { 0x30, 0x32, 0x20, 0x3b, 0x10, 0x28, 0xec, 0x1f, 0x4f, 0x9b, 0x47, 0x59,
+ 0xeb, 0x7b, 0xee, 0x45, 0xfb, 0x0c, 0x49, 0xd8, 0x3d, 0x69, 0xbd, 0x90,
+ 0x2c, 0xf0, 0x9e, 0x8d, 0xbf, 0xd5, },
+ { 0x2a, 0x37, 0x73, 0x7f, 0xf9, 0x96, 0x19, 0xaa, 0x25, 0xd8, 0x13, 0x28,
+ 0x01, 0x29, 0x89, 0xdf, 0x6e, 0x0c, 0x9b, 0x43, 0x44, 0x51, 0xe9, 0x75,
+ 0x26, 0x0c, 0xb7, 0x87, 0x66, 0x0b, 0x5f, },
+ { 0x23, 0xdf, 0x96, 0x68, 0x91, 0x86, 0xd0, 0x93, 0x55, 0x33, 0x24, 0xf6,
+ 0xba, 0x08, 0x75, 0x5b, 0x59, 0x11, 0x69, 0xb8, 0xb9, 0xe5, 0x2c, 0x77,
+ 0x02, 0xf6, 0x47, 0xee, 0x81, 0xdd, 0xb9, 0x06, },
+ { 0x9d, },
+ { 0x9d, 0x7d, },
+ { 0xfd, 0xc3, 0xda, },
+ { 0xe8, 0x82, 0xcd, 0x21, },
+ { 0xc3, 0x1d, 0x42, 0x4c, 0x74, },
+ { 0xe9, 0xda, 0xf1, 0xa2, 0xe5, 0x7c, },
+ { 0x52, 0xb8, 0x6f, 0x81, 0x5c, 0x3a, 0x4c, },
+ { 0x5b, 0x39, 0x26, 0xfc, 0x92, 0x5e, 0xe0, 0x49, },
+ { 0x59, 0xe4, 0x7c, 0x93, 0x1c, 0xf9, 0x28, 0x93, 0xde, },
+ { 0xde, 0xdf, 0xb2, 0x43, 0x61, 0x0b, 0x86, 0x16, 0x4c, 0x2e, },
+ { 0x14, 0x8f, 0x75, 0x51, 0xaf, 0xb9, 0xee, 0x51, 0x5a, 0xae, 0x23, },
+ { 0x43, 0x5f, 0x50, 0xd5, 0x70, 0xb0, 0x5b, 0x87, 0xf5, 0xd9, 0xb3, 0x6d, },
+ { 0x66, 0x0a, 0x64, 0x93, 0x79, 0x71, 0x94, 0x40, 0xb7, 0x68, 0x2d, 0xd3,
+ 0x63, },
+ { 0x15, 0x00, 0xc4, 0x0c, 0x7d, 0x1b, 0x10, 0xa9, 0x73, 0x1b, 0x90, 0x6f,
+ 0xe6, 0xa9, },
+ { 0x34, 0x75, 0xf3, 0x86, 0x8f, 0x56, 0xcf, 0x2a, 0x0a, 0xf2, 0x62, 0x0a,
+ 0xf6, 0x0e, 0x20, },
+ { 0xb1, 0xde, 0xc9, 0xf5, 0xdb, 0xf3, 0x2f, 0x4c, 0xd6, 0x41, 0x7d, 0x39,
+ 0x18, 0x3e, 0xc7, 0xc3, },
+ { 0xc5, 0x89, 0xb2, 0xf8, 0xb8, 0xc0, 0xa3, 0xb9, 0x3b, 0x10, 0x6d, 0x7c,
+ 0x92, 0xfc, 0x7f, 0x34, 0x41, },
+ { 0xc4, 0xd8, 0xef, 0xba, 0xef, 0xd2, 0xaa, 0xc5, 0x6c, 0x8e, 0x3e, 0xbb,
+ 0x12, 0xfc, 0x0f, 0x72, 0xbf, 0x0f, },
+ { 0xdd, 0x91, 0xd1, 0x15, 0x9e, 0x7d, 0xf8, 0xc1, 0xb9, 0x14, 0x63, 0x96,
+ 0xb5, 0xcb, 0x83, 0x1d, 0x35, 0x1c, 0xec, },
+ { 0xa9, 0xf8, 0x52, 0xc9, 0x67, 0x76, 0x2b, 0xad, 0xfb, 0xd8, 0x3a, 0xa6,
+ 0x74, 0x02, 0xae, 0xb8, 0x25, 0x2c, 0x63, 0x49, },
+ { 0x77, 0x1f, 0x66, 0x70, 0xfd, 0x50, 0x29, 0xaa, 0xeb, 0xdc, 0xee, 0xba,
+ 0x75, 0x98, 0xdc, 0x93, 0x12, 0x3f, 0xdc, 0x7c, 0x38, },
+ { 0xe2, 0xe1, 0x89, 0x5c, 0x37, 0x38, 0x6a, 0xa3, 0x40, 0xac, 0x3f, 0xb0,
+ 0xca, 0xfc, 0xa7, 0xf3, 0xea, 0xf9, 0x0f, 0x5d, 0x8e, 0x39, },
+ { 0x0f, 0x67, 0xc8, 0x38, 0x01, 0xb1, 0xb7, 0xb8, 0xa2, 0xe7, 0x0a, 0x6d,
+ 0xd2, 0x63, 0x69, 0x9e, 0xcc, 0xf0, 0xf2, 0xbe, 0x9b, 0x98, 0xdd, },
+ { 0x13, 0xe1, 0x36, 0x30, 0xfe, 0xc6, 0x01, 0x8a, 0xa1, 0x63, 0x96, 0x59,
+ 0xc2, 0xa9, 0x68, 0x3f, 0x58, 0xd4, 0x19, 0x0c, 0x40, 0xf3, 0xde, 0x02, },
+ { 0xa3, 0x9e, 0xce, 0xda, 0x42, 0xee, 0x8c, 0x6c, 0x5a, 0x7d, 0xdc, 0x89,
+ 0x02, 0x77, 0xdd, 0xe7, 0x95, 0xbb, 0xff, 0x0d, 0xa4, 0xb5, 0x38, 0x1e,
+ 0xaf, },
+ { 0x9a, 0xf6, 0xb5, 0x9a, 0x4f, 0xa9, 0x4f, 0x2c, 0x35, 0x3c, 0x24, 0xdc,
+ 0x97, 0x6f, 0xd9, 0xa1, 0x7d, 0x1a, 0x85, 0x0b, 0xf5, 0xda, 0x2e, 0xe7,
+ 0xb1, 0x1d, },
+ { 0x84, 0x1e, 0x8e, 0x3d, 0x45, 0xa5, 0xf2, 0x27, 0xf3, 0x31, 0xfe, 0xb9,
+ 0xfb, 0xc5, 0x45, 0x99, 0x99, 0xdd, 0x93, 0x43, 0x02, 0xee, 0x58, 0xaf,
+ 0xee, 0x6a, 0xbe, },
+ { 0x07, 0x2f, 0xc0, 0xa2, 0x04, 0xc4, 0xab, 0x7c, 0x26, 0xbb, 0xa8, 0xd8,
+ 0xe3, 0x1c, 0x75, 0x15, 0x64, 0x5d, 0x02, 0x6a, 0xf0, 0x86, 0xe9, 0xcd,
+ 0x5c, 0xef, 0xa3, 0x25, },
+ { 0x2f, 0x3b, 0x1f, 0xb5, 0x91, 0x8f, 0x86, 0xe0, 0xdc, 0x31, 0x48, 0xb6,
+ 0xa1, 0x8c, 0xfd, 0x75, 0xbb, 0x7d, 0x3d, 0xc1, 0xf0, 0x10, 0x9a, 0xd8,
+ 0x4b, 0x0e, 0xe3, 0x94, 0x9f, },
+ { 0x29, 0xbb, 0x8f, 0x6c, 0xd1, 0xf2, 0xb6, 0xaf, 0xe5, 0xe3, 0x2d, 0xdc,
+ 0x6f, 0xa4, 0x53, 0x88, 0xd8, 0xcf, 0x4d, 0x45, 0x42, 0x62, 0xdb, 0xdf,
+ 0xf8, 0x45, 0xc2, 0x13, 0xec, 0x35, },
+ { 0x06, 0x3c, 0xe3, 0x2c, 0x15, 0xc6, 0x43, 0x03, 0x81, 0xfb, 0x08, 0x76,
+ 0x33, 0xcb, 0x02, 0xc1, 0xba, 0x33, 0xe5, 0xe0, 0xd1, 0x92, 0xa8, 0x46,
+ 0x28, 0x3f, 0x3e, 0x9d, 0x2c, 0x44, 0x54, },
+ { 0xea, 0xbb, 0x96, 0xf8, 0xd1, 0x8b, 0x04, 0x11, 0x40, 0x78, 0x42, 0x02,
+ 0x19, 0xd1, 0xbc, 0x65, 0x92, 0xd3, 0xc3, 0xd6, 0xd9, 0x19, 0xe7, 0xc3,
+ 0x40, 0x97, 0xbd, 0xd4, 0xed, 0xfa, 0x5e, 0x28, },
+ { 0x02, },
+ { 0x52, 0xa8, },
+ { 0x38, 0x25, 0x0d, },
+ { 0xe3, 0x04, 0xd4, 0x92, },
+ { 0x97, 0xdb, 0xf7, 0x81, 0xca, },
+ { 0x8a, 0x56, 0x9d, 0x62, 0x56, 0xcc, },
+ { 0xa1, 0x8e, 0x3c, 0x72, 0x8f, 0x63, 0x03, },
+ { 0xf7, 0xf3, 0x39, 0x09, 0x0a, 0xa1, 0xbb, 0x23, },
+ { 0x6b, 0x03, 0xc0, 0xe9, 0xd9, 0x83, 0x05, 0x22, 0x01, },
+ { 0x1b, 0x4b, 0xf5, 0xd6, 0x4f, 0x05, 0x75, 0x91, 0x4c, 0x7f, },
+ { 0x4c, 0x8c, 0x25, 0x20, 0x21, 0xcb, 0xc2, 0x4b, 0x3a, 0x5b, 0x8d, },
+ { 0x56, 0xe2, 0x77, 0xa0, 0xb6, 0x9f, 0x81, 0xec, 0x83, 0x75, 0xc4, 0xf9, },
+ { 0x71, 0x70, 0x0f, 0xad, 0x4d, 0x35, 0x81, 0x9d, 0x88, 0x69, 0xf9, 0xaa,
+ 0xd3, },
+ { 0x50, 0x6e, 0x86, 0x6e, 0x43, 0xc0, 0xc2, 0x44, 0xc2, 0xe2, 0xa0, 0x1c,
+ 0xb7, 0x9a, },
+ { 0xe4, 0x7e, 0x72, 0xc6, 0x12, 0x8e, 0x7c, 0xfc, 0xbd, 0xe2, 0x08, 0x31,
+ 0x3d, 0x47, 0x3d, },
+ { 0x08, 0x97, 0x5b, 0x80, 0xae, 0xc4, 0x1d, 0x50, 0x77, 0xdf, 0x1f, 0xd0,
+ 0x24, 0xf0, 0x17, 0xc0, },
+ { 0x01, 0xb6, 0x29, 0xf4, 0xaf, 0x78, 0x5f, 0xb6, 0x91, 0xdd, 0x76, 0x76,
+ 0xd2, 0xfd, 0x0c, 0x47, 0x40, },
+ { 0xa1, 0xd8, 0x09, 0x97, 0x7a, 0xa6, 0xc8, 0x94, 0xf6, 0x91, 0x7b, 0xae,
+ 0x2b, 0x9f, 0x0d, 0x83, 0x48, 0xf7, },
+ { 0x12, 0xd5, 0x53, 0x7d, 0x9a, 0xb0, 0xbe, 0xd9, 0xed, 0xe9, 0x9e, 0xee,
+ 0x61, 0x5b, 0x42, 0xf2, 0xc0, 0x73, 0xc0, },
+ { 0xd5, 0x77, 0xd6, 0x5c, 0x6e, 0xa5, 0x69, 0x2b, 0x3b, 0x8c, 0xd6, 0x7d,
+ 0x1d, 0xbe, 0x2c, 0xa1, 0x02, 0x21, 0xcd, 0x29, },
+ { 0xa4, 0x98, 0x80, 0xca, 0x22, 0xcf, 0x6a, 0xab, 0x5e, 0x40, 0x0d, 0x61,
+ 0x08, 0x21, 0xef, 0xc0, 0x6c, 0x52, 0xb4, 0xb0, 0x53, },
+ { 0xbf, 0xaf, 0x8f, 0x3b, 0x7a, 0x97, 0x33, 0xe5, 0xca, 0x07, 0x37, 0xfd,
+ 0x15, 0xdf, 0xce, 0x26, 0x2a, 0xb1, 0xa7, 0x0b, 0xb3, 0xac, },
+ { 0x16, 0x22, 0xe1, 0xbc, 0x99, 0x4e, 0x01, 0xf0, 0xfa, 0xff, 0x8f, 0xa5,
+ 0x0c, 0x61, 0xb0, 0xad, 0xcc, 0xb1, 0xe1, 0x21, 0x46, 0xfa, 0x2e, },
+ { 0x11, 0x5b, 0x0b, 0x2b, 0xe6, 0x14, 0xc1, 0xd5, 0x4d, 0x71, 0x5e, 0x17,
+ 0xea, 0x23, 0xdd, 0x6c, 0xbd, 0x1d, 0xbe, 0x12, 0x1b, 0xee, 0x4c, 0x1a, },
+ { 0x40, 0x88, 0x22, 0xf3, 0x20, 0x6c, 0xed, 0xe1, 0x36, 0x34, 0x62, 0x2c,
+ 0x98, 0x83, 0x52, 0xe2, 0x25, 0xee, 0xe9, 0xf5, 0xe1, 0x17, 0xf0, 0x5c,
+ 0xae, },
+ { 0xc3, 0x76, 0x37, 0xde, 0x95, 0x8c, 0xca, 0x2b, 0x0c, 0x23, 0xe7, 0xb5,
+ 0x38, 0x70, 0x61, 0xcc, 0xff, 0xd3, 0x95, 0x7b, 0xf3, 0xff, 0x1f, 0x9d,
+ 0x59, 0x00, },
+ { 0x0c, 0x19, 0x52, 0x05, 0x22, 0x53, 0xcb, 0x48, 0xd7, 0x10, 0x0e, 0x7e,
+ 0x14, 0x69, 0xb5, 0xa2, 0x92, 0x43, 0xa3, 0x9e, 0x4b, 0x8f, 0x51, 0x2c,
+ 0x5a, 0x2c, 0x3b, },
+ { 0xe1, 0x9d, 0x70, 0x70, 0x28, 0xec, 0x86, 0x40, 0x55, 0x33, 0x56, 0xda,
+ 0x88, 0xca, 0xee, 0xc8, 0x6a, 0x20, 0xb1, 0xe5, 0x3d, 0x57, 0xf8, 0x3c,
+ 0x10, 0x07, 0x2a, 0xc4, },
+ { 0x0b, 0xae, 0xf1, 0xc4, 0x79, 0xee, 0x1b, 0x3d, 0x27, 0x35, 0x8d, 0x14,
+ 0xd6, 0xae, 0x4e, 0x3c, 0xe9, 0x53, 0x50, 0xb5, 0xcc, 0x0c, 0xf7, 0xdf,
+ 0xee, 0xa1, 0x74, 0xd6, 0x71, },
+ { 0xe6, 0xa4, 0xf4, 0x99, 0x98, 0xb9, 0x80, 0xea, 0x96, 0x7f, 0x4f, 0x33,
+ 0xcf, 0x74, 0x25, 0x6f, 0x17, 0x6c, 0xbf, 0xf5, 0x5c, 0x38, 0xd0, 0xff,
+ 0x96, 0xcb, 0x13, 0xf9, 0xdf, 0xfd, },
+ { 0xbe, 0x92, 0xeb, 0xba, 0x44, 0x2c, 0x24, 0x74, 0xd4, 0x03, 0x27, 0x3c,
+ 0x5d, 0x5b, 0x03, 0x30, 0x87, 0x63, 0x69, 0xe0, 0xb8, 0x94, 0xf4, 0x44,
+ 0x7e, 0xad, 0xcd, 0x20, 0x12, 0x16, 0x79, },
+ { 0x30, 0xf1, 0xc4, 0x8e, 0x05, 0x90, 0x2a, 0x97, 0x63, 0x94, 0x46, 0xff,
+ 0xce, 0xd8, 0x67, 0xa7, 0xac, 0x33, 0x8c, 0x95, 0xb7, 0xcd, 0xa3, 0x23,
+ 0x98, 0x9d, 0x76, 0x6c, 0x9d, 0xa8, 0xd6, 0x8a, },
+ { 0xbe, },
+ { 0x17, 0x6c, },
+ { 0x1a, 0x42, 0x4f, },
+ { 0xba, 0xaf, 0xb7, 0x65, },
+ { 0xc2, 0x63, 0x43, 0x6a, 0xea, },
+ { 0xe4, 0x4d, 0xad, 0xf2, 0x0b, 0x02, },
+ { 0x04, 0xc7, 0xc4, 0x7f, 0xa9, 0x2b, 0xce, },
+ { 0x66, 0xf6, 0x67, 0xcb, 0x03, 0x53, 0xc8, 0xf1, },
+ { 0x56, 0xa3, 0x60, 0x78, 0xc9, 0x5f, 0x70, 0x1b, 0x5e, },
+ { 0x99, 0xff, 0x81, 0x7c, 0x13, 0x3c, 0x29, 0x79, 0x4b, 0x65, },
+ { 0x51, 0x10, 0x50, 0x93, 0x01, 0x93, 0xb7, 0x01, 0xc9, 0x18, 0xb7, },
+ { 0x8e, 0x3c, 0x42, 0x1e, 0x5e, 0x7d, 0xc1, 0x50, 0x70, 0x1f, 0x00, 0x98, },
+ { 0x5f, 0xd9, 0x9b, 0xc8, 0xd7, 0xb2, 0x72, 0x62, 0x1a, 0x1e, 0xba, 0x92,
+ 0xe9, },
+ { 0x70, 0x2b, 0xba, 0xfe, 0xad, 0x5d, 0x96, 0x3f, 0x27, 0xc2, 0x41, 0x6d,
+ 0xc4, 0xb3, },
+ { 0xae, 0xe0, 0xd5, 0xd4, 0xc7, 0xae, 0x15, 0x5e, 0xdc, 0xdd, 0x33, 0x60,
+ 0xd7, 0xd3, 0x5e, },
+ { 0x79, 0x8e, 0xbc, 0x9e, 0x20, 0xb9, 0x19, 0x4b, 0x63, 0x80, 0xf3, 0x16,
+ 0xaf, 0x39, 0xbd, 0x92, },
+ { 0xc2, 0x0e, 0x85, 0xa0, 0x0b, 0x9a, 0xb0, 0xec, 0xde, 0x38, 0xd3, 0x10,
+ 0xd9, 0xa7, 0x66, 0x27, 0xcf, },
+ { 0x0e, 0x3b, 0x75, 0x80, 0x67, 0x14, 0x0c, 0x02, 0x90, 0xd6, 0xb3, 0x02,
+ 0x81, 0xf6, 0xa6, 0x87, 0xce, 0x58, },
+ { 0x79, 0xb5, 0xe9, 0x5d, 0x52, 0x4d, 0xf7, 0x59, 0xf4, 0x2e, 0x27, 0xdd,
+ 0xb3, 0xed, 0x57, 0x5b, 0x82, 0xea, 0x6f, },
+ { 0xa2, 0x97, 0xf5, 0x80, 0x02, 0x3d, 0xde, 0xa3, 0xf9, 0xf6, 0xab, 0xe3,
+ 0x57, 0x63, 0x7b, 0x9b, 0x10, 0x42, 0x6f, 0xf2, },
+ { 0x12, 0x7a, 0xfc, 0xb7, 0x67, 0x06, 0x0c, 0x78, 0x1a, 0xfe, 0x88, 0x4f,
+ 0xc6, 0xac, 0x52, 0x96, 0x64, 0x28, 0x97, 0x84, 0x06, },
+ { 0xc5, 0x04, 0x44, 0x6b, 0xb2, 0xa5, 0xa4, 0x66, 0xe1, 0x76, 0xa2, 0x51,
+ 0xf9, 0x59, 0x69, 0x97, 0x56, 0x0b, 0xbf, 0x50, 0xb3, 0x34, },
+ { 0x21, 0x32, 0x6b, 0x42, 0xb5, 0xed, 0x71, 0x8d, 0xf7, 0x5a, 0x35, 0xe3,
+ 0x90, 0xe2, 0xee, 0xaa, 0x89, 0xf6, 0xc9, 0x9c, 0x4d, 0x73, 0xf4, },
+ { 0x4c, 0xa6, 0x09, 0xf4, 0x48, 0xe7, 0x46, 0xbc, 0x49, 0xfc, 0xe5, 0xda,
+ 0xd1, 0x87, 0x13, 0x17, 0x4c, 0x59, 0x71, 0x26, 0x5b, 0x2c, 0x42, 0xb7, },
+ { 0x13, 0x63, 0xf3, 0x40, 0x02, 0xe5, 0xa3, 0x3a, 0x5e, 0x8e, 0xf8, 0xb6,
+ 0x8a, 0x49, 0x60, 0x76, 0x34, 0x72, 0x94, 0x73, 0xf6, 0xd9, 0x21, 0x6a,
+ 0x26, },
+ { 0xdf, 0x75, 0x16, 0x10, 0x1b, 0x5e, 0x81, 0xc3, 0xc8, 0xde, 0x34, 0x24,
+ 0xb0, 0x98, 0xeb, 0x1b, 0x8f, 0xa1, 0x9b, 0x05, 0xee, 0xa5, 0xe9, 0x35,
+ 0xf4, 0x1d, },
+ { 0xcd, 0x21, 0x93, 0x6e, 0x5b, 0xa0, 0x26, 0x2b, 0x21, 0x0e, 0xa0, 0xb9,
+ 0x1c, 0xb5, 0xbb, 0xb8, 0xf8, 0x1e, 0xff, 0x5c, 0xa8, 0xf9, 0x39, 0x46,
+ 0x4e, 0x29, 0x26, },
+ { 0x73, 0x7f, 0x0e, 0x3b, 0x0b, 0x5c, 0xf9, 0x60, 0xaa, 0x88, 0xa1, 0x09,
+ 0xb1, 0x5d, 0x38, 0x7b, 0x86, 0x8f, 0x13, 0x7a, 0x8d, 0x72, 0x7a, 0x98,
+ 0x1a, 0x5b, 0xff, 0xc9, },
+ { 0xd3, 0x3c, 0x61, 0x71, 0x44, 0x7e, 0x31, 0x74, 0x98, 0x9d, 0x9a, 0xd2,
+ 0x27, 0xf3, 0x46, 0x43, 0x42, 0x51, 0xd0, 0x5f, 0xe9, 0x1c, 0x5c, 0x69,
+ 0xbf, 0xf6, 0xbe, 0x3c, 0x40, },
+ { 0x31, 0x99, 0x31, 0x9f, 0xaa, 0x43, 0x2e, 0x77, 0x3e, 0x74, 0x26, 0x31,
+ 0x5e, 0x61, 0xf1, 0x87, 0xe2, 0xeb, 0x9b, 0xcd, 0xd0, 0x3a, 0xee, 0x20,
+ 0x7e, 0x10, 0x0a, 0x0b, 0x7e, 0xfa, },
+ { 0xa4, 0x27, 0x80, 0x67, 0x81, 0x2a, 0xa7, 0x62, 0xf7, 0x6e, 0xda, 0xd4,
+ 0x5c, 0x39, 0x74, 0xad, 0x7e, 0xbe, 0xad, 0xa5, 0x84, 0x7f, 0xa9, 0x30,
+ 0x5d, 0xdb, 0xe2, 0x05, 0x43, 0xf7, 0x1b, },
+ { 0x0b, 0x37, 0xd8, 0x02, 0xe1, 0x83, 0xd6, 0x80, 0xf2, 0x35, 0xc2, 0xb0,
+ 0x37, 0xef, 0xef, 0x5e, 0x43, 0x93, 0xf0, 0x49, 0x45, 0x0a, 0xef, 0xb5,
+ 0x76, 0x70, 0x12, 0x44, 0xc4, 0xdb, 0xf5, 0x7a, },
+ { 0x1f, },
+ { 0x82, 0x60, },
+ { 0xcc, 0xe3, 0x08, },
+ { 0x56, 0x17, 0xe4, 0x59, },
+ { 0xe2, 0xd7, 0x9e, 0xc4, 0x4c, },
+ { 0xb2, 0xad, 0xd3, 0x78, 0x58, 0x5a, },
+ { 0xce, 0x43, 0xb4, 0x02, 0x96, 0xab, 0x3c, },
+ { 0xe6, 0x05, 0x1a, 0x73, 0x22, 0x32, 0xbb, 0x77, },
+ { 0x23, 0xe7, 0xda, 0xfe, 0x2c, 0xef, 0x8c, 0x22, 0xec, },
+ { 0xe9, 0x8e, 0x55, 0x38, 0xd1, 0xd7, 0x35, 0x23, 0x98, 0xc7, },
+ { 0xb5, 0x81, 0x1a, 0xe5, 0xb5, 0xa5, 0xd9, 0x4d, 0xca, 0x41, 0xe7, },
+ { 0x41, 0x16, 0x16, 0x95, 0x8d, 0x9e, 0x0c, 0xea, 0x8c, 0x71, 0x9a, 0xc1, },
+ { 0x7c, 0x33, 0xc0, 0xa4, 0x00, 0x62, 0xea, 0x60, 0x67, 0xe4, 0x20, 0xbc,
+ 0x5b, },
+ { 0xdb, 0xb1, 0xdc, 0xfd, 0x08, 0xc0, 0xde, 0x82, 0xd1, 0xde, 0x38, 0xc0,
+ 0x90, 0x48, },
+ { 0x37, 0x18, 0x2e, 0x0d, 0x61, 0xaa, 0x61, 0xd7, 0x86, 0x20, 0x16, 0x60,
+ 0x04, 0xd9, 0xd5, },
+ { 0xb0, 0xcf, 0x2c, 0x4c, 0x5e, 0x5b, 0x4f, 0x2a, 0x23, 0x25, 0x58, 0x47,
+ 0xe5, 0x31, 0x06, 0x70, },
+ { 0x91, 0xa0, 0xa3, 0x86, 0x4e, 0xe0, 0x72, 0x38, 0x06, 0x67, 0x59, 0x5c,
+ 0x70, 0x25, 0xdb, 0x33, 0x27, },
+ { 0x44, 0x58, 0x66, 0xb8, 0x58, 0xc7, 0x13, 0xed, 0x4c, 0xc0, 0xf4, 0x9a,
+ 0x1e, 0x67, 0x75, 0x33, 0xb6, 0xb8, },
+ { 0x7f, 0x98, 0x4a, 0x8e, 0x50, 0xa2, 0x5c, 0xcd, 0x59, 0xde, 0x72, 0xb3,
+ 0x9d, 0xc3, 0x09, 0x8a, 0xab, 0x56, 0xf1, },
+ { 0x80, 0x96, 0x49, 0x1a, 0x59, 0xa2, 0xc5, 0xd5, 0xa7, 0x20, 0x8a, 0xb7,
+ 0x27, 0x62, 0x84, 0x43, 0xc6, 0xe1, 0x1b, 0x5d, },
+ { 0x6b, 0xb7, 0x2b, 0x26, 0x62, 0x14, 0x70, 0x19, 0x3d, 0x4d, 0xac, 0xac,
+ 0x63, 0x58, 0x5e, 0x94, 0xb5, 0xb7, 0xe8, 0xe8, 0xa2, },
+ { 0x20, 0xa8, 0xc0, 0xfd, 0x63, 0x3d, 0x6e, 0x98, 0xcf, 0x0c, 0x49, 0x98,
+ 0xe4, 0x5a, 0xfe, 0x8c, 0xaa, 0x70, 0x82, 0x1c, 0x7b, 0x74, },
+ { 0xc8, 0xe8, 0xdd, 0xdf, 0x69, 0x30, 0x01, 0xc2, 0x0f, 0x7e, 0x2f, 0x11,
+ 0xcc, 0x3e, 0x17, 0xa5, 0x69, 0x40, 0x3f, 0x0e, 0x79, 0x7f, 0xcf, },
+ { 0xdb, 0x61, 0xc0, 0xe2, 0x2e, 0x49, 0x07, 0x31, 0x1d, 0x91, 0x42, 0x8a,
+ 0xfc, 0x5e, 0xd3, 0xf8, 0x56, 0x1f, 0x2b, 0x73, 0xfd, 0x9f, 0xb2, 0x8e, },
+ { 0x0c, 0x89, 0x55, 0x0c, 0x1f, 0x59, 0x2c, 0x9d, 0x1b, 0x29, 0x1d, 0x41,
+ 0x1d, 0xe6, 0x47, 0x8f, 0x8c, 0x2b, 0xea, 0x8f, 0xf0, 0xff, 0x21, 0x70,
+ 0x88, },
+ { 0x12, 0x18, 0x95, 0xa6, 0x59, 0xb1, 0x31, 0x24, 0x45, 0x67, 0x55, 0xa4,
+ 0x1a, 0x2d, 0x48, 0x67, 0x1b, 0x43, 0x88, 0x2d, 0x8e, 0xa0, 0x70, 0xb3,
+ 0xc6, 0xbb, },
+ { 0xe7, 0xb1, 0x1d, 0xb2, 0x76, 0x4d, 0x68, 0x68, 0x68, 0x23, 0x02, 0x55,
+ 0x3a, 0xe2, 0xe5, 0xd5, 0x4b, 0x43, 0xf9, 0x34, 0x77, 0x5c, 0xa1, 0xf5,
+ 0x55, 0xfd, 0x4f, },
+ { 0x8c, 0x87, 0x5a, 0x08, 0x3a, 0x73, 0xad, 0x61, 0xe1, 0xe7, 0x99, 0x7e,
+ 0xf0, 0x5d, 0xe9, 0x5d, 0x16, 0x43, 0x80, 0x2f, 0xd0, 0x66, 0x34, 0xe2,
+ 0x42, 0x64, 0x3b, 0x1a, },
+ { 0x39, 0xc1, 0x99, 0xcf, 0x22, 0xbf, 0x16, 0x8f, 0x9f, 0x80, 0x7f, 0x95,
+ 0x0a, 0x05, 0x67, 0x27, 0xe7, 0x15, 0xdf, 0x9d, 0xb2, 0xfe, 0x1c, 0xb5,
+ 0x1d, 0x60, 0x8f, 0x8a, 0x1d, },
+ { 0x9b, 0x6e, 0x08, 0x09, 0x06, 0x73, 0xab, 0x68, 0x02, 0x62, 0x1a, 0xe4,
+ 0xd4, 0xdf, 0xc7, 0x02, 0x4c, 0x6a, 0x5f, 0xfd, 0x23, 0xac, 0xae, 0x6d,
+ 0x43, 0xa4, 0x7a, 0x50, 0x60, 0x3c, },
+ { 0x1d, 0xb4, 0xc6, 0xe1, 0xb1, 0x4b, 0xe3, 0xf2, 0xe2, 0x1a, 0x73, 0x1b,
+ 0xa0, 0x92, 0xa7, 0xf5, 0xff, 0x8f, 0x8b, 0x5d, 0xdf, 0xa8, 0x04, 0xb3,
+ 0xb0, 0xf7, 0xcc, 0x12, 0xfa, 0x35, 0x46, },
+ { 0x49, 0x45, 0x97, 0x11, 0x0f, 0x1c, 0x60, 0x8e, 0xe8, 0x47, 0x30, 0xcf,
+ 0x60, 0xa8, 0x71, 0xc5, 0x1b, 0xe9, 0x39, 0x4d, 0x49, 0xb6, 0x12, 0x1f,
+ 0x24, 0xab, 0x37, 0xff, 0x83, 0xc2, 0xe1, 0x3a, },
+ { 0x60, },
+ { 0x24, 0x26, },
+ { 0x47, 0xeb, 0xc9, },
+ { 0x4a, 0xd0, 0xbc, 0xf0, },
+ { 0x8e, 0x2b, 0xc9, 0x85, 0x3c, },
+ { 0xa2, 0x07, 0x15, 0xb8, 0x12, 0x74, },
+ { 0x0f, 0xdb, 0x5b, 0x33, 0x69, 0xfe, 0x4b, },
+ { 0xa2, 0x86, 0x54, 0xf4, 0xfd, 0xb2, 0xd4, 0xe6, },
+ { 0xbb, 0x84, 0x78, 0x49, 0x27, 0x8e, 0x61, 0xda, 0x60, },
+ { 0x04, 0xc3, 0xcd, 0xaa, 0x8f, 0xa7, 0x03, 0xc9, 0xf9, 0xb6, },
+ { 0xf8, 0x27, 0x1d, 0x61, 0xdc, 0x21, 0x42, 0xdd, 0xad, 0x92, 0x40, },
+ { 0x12, 0x87, 0xdf, 0xc2, 0x41, 0x45, 0x5a, 0x36, 0x48, 0x5b, 0x51, 0x2b, },
+ { 0xbb, 0x37, 0x5d, 0x1f, 0xf1, 0x68, 0x7a, 0xc4, 0xa5, 0xd2, 0xa4, 0x91,
+ 0x8d, },
+ { 0x5b, 0x27, 0xd1, 0x04, 0x54, 0x52, 0x9f, 0xa3, 0x47, 0x86, 0x33, 0x33,
+ 0xbf, 0xa0, },
+ { 0xcf, 0x04, 0xea, 0xf8, 0x03, 0x2a, 0x43, 0xff, 0xa6, 0x68, 0x21, 0x4c,
+ 0xd5, 0x4b, 0xed, },
+ { 0xaf, 0xb8, 0xbc, 0x63, 0x0f, 0x18, 0x4d, 0xe2, 0x7a, 0xdd, 0x46, 0x44,
+ 0xc8, 0x24, 0x0a, 0xb7, },
+ { 0x3e, 0xdc, 0x36, 0xe4, 0x89, 0xb1, 0xfa, 0xc6, 0x40, 0x93, 0x2e, 0x75,
+ 0xb2, 0x15, 0xd1, 0xb1, 0x10, },
+ { 0x6c, 0xd8, 0x20, 0x3b, 0x82, 0x79, 0xf9, 0xc8, 0xbc, 0x9d, 0xe0, 0x35,
+ 0xbe, 0x1b, 0x49, 0x1a, 0xbc, 0x3a, },
+ { 0x78, 0x65, 0x2c, 0xbe, 0x35, 0x67, 0xdc, 0x78, 0xd4, 0x41, 0xf6, 0xc9,
+ 0xde, 0xde, 0x1f, 0x18, 0x13, 0x31, 0x11, },
+ { 0x8a, 0x7f, 0xb1, 0x33, 0x8f, 0x0c, 0x3c, 0x0a, 0x06, 0x61, 0xf0, 0x47,
+ 0x29, 0x1b, 0x29, 0xbc, 0x1c, 0x47, 0xef, 0x7a, },
+ { 0x65, 0x91, 0xf1, 0xe6, 0xb3, 0x96, 0xd3, 0x8c, 0xc2, 0x4a, 0x59, 0x35,
+ 0x72, 0x8e, 0x0b, 0x9a, 0x87, 0xca, 0x34, 0x7b, 0x63, },
+ { 0x5f, 0x08, 0x87, 0x80, 0x56, 0x25, 0x89, 0x77, 0x61, 0x8c, 0x64, 0xa1,
+ 0x59, 0x6d, 0x59, 0x62, 0xe8, 0x4a, 0xc8, 0x58, 0x99, 0xd1, },
+ { 0x23, 0x87, 0x1d, 0xed, 0x6f, 0xf2, 0x91, 0x90, 0xe2, 0xfe, 0x43, 0x21,
+ 0xaf, 0x97, 0xc6, 0xbc, 0xd7, 0x15, 0xc7, 0x2d, 0x08, 0x77, 0x91, },
+ { 0x90, 0x47, 0x9a, 0x9e, 0x3a, 0xdf, 0xf3, 0xc9, 0x4c, 0x1e, 0xa7, 0xd4,
+ 0x6a, 0x32, 0x90, 0xfe, 0xb7, 0xb6, 0x7b, 0xfa, 0x96, 0x61, 0xfb, 0xa4, },
+ { 0xb1, 0x67, 0x60, 0x45, 0xb0, 0x96, 0xc5, 0x15, 0x9f, 0x4d, 0x26, 0xd7,
+ 0x9d, 0xf1, 0xf5, 0x6d, 0x21, 0x00, 0x94, 0x31, 0x64, 0x94, 0xd3, 0xa7,
+ 0xd3, },
+ { 0x02, 0x3e, 0xaf, 0xf3, 0x79, 0x73, 0xa5, 0xf5, 0xcc, 0x7a, 0x7f, 0xfb,
+ 0x79, 0x2b, 0x85, 0x8c, 0x88, 0x72, 0x06, 0xbe, 0xfe, 0xaf, 0xc1, 0x16,
+ 0xa6, 0xd6, },
+ { 0x2a, 0xb0, 0x1a, 0xe5, 0xaa, 0x6e, 0xb3, 0xae, 0x53, 0x85, 0x33, 0x80,
+ 0x75, 0xae, 0x30, 0xe6, 0xb8, 0x72, 0x42, 0xf6, 0x25, 0x4f, 0x38, 0x88,
+ 0x55, 0xd1, 0xa9, },
+ { 0x90, 0xd8, 0x0c, 0xc0, 0x93, 0x4b, 0x4f, 0x9e, 0x65, 0x6c, 0xa1, 0x54,
+ 0xa6, 0xf6, 0x6e, 0xca, 0xd2, 0xbb, 0x7e, 0x6a, 0x1c, 0xd3, 0xce, 0x46,
+ 0xef, 0xb0, 0x00, 0x8d, },
+ { 0xed, 0x9c, 0x49, 0xcd, 0xc2, 0xde, 0x38, 0x0e, 0xe9, 0x98, 0x6c, 0xc8,
+ 0x90, 0x9e, 0x3c, 0xd4, 0xd3, 0xeb, 0x88, 0x32, 0xc7, 0x28, 0xe3, 0x94,
+ 0x1c, 0x9f, 0x8b, 0xf3, 0xcb, },
+ { 0xac, 0xe7, 0x92, 0x16, 0xb4, 0x14, 0xa0, 0xe4, 0x04, 0x79, 0xa2, 0xf4,
+ 0x31, 0xe6, 0x0c, 0x26, 0xdc, 0xbf, 0x2f, 0x69, 0x1b, 0x55, 0x94, 0x67,
+ 0xda, 0x0c, 0xd7, 0x32, 0x1f, 0xef, },
+ { 0x68, 0x63, 0x85, 0x57, 0x95, 0x9e, 0x42, 0x27, 0x41, 0x43, 0x42, 0x02,
+ 0xa5, 0x78, 0xa7, 0xc6, 0x43, 0xc1, 0x6a, 0xba, 0x70, 0x80, 0xcd, 0x04,
+ 0xb6, 0x78, 0x76, 0x29, 0xf3, 0xe8, 0xa0, },
+ { 0xe6, 0xac, 0x8d, 0x9d, 0xf0, 0xc0, 0xf7, 0xf7, 0xe3, 0x3e, 0x4e, 0x28,
+ 0x0f, 0x59, 0xb2, 0x67, 0x9e, 0x84, 0x34, 0x42, 0x96, 0x30, 0x2b, 0xca,
+ 0x49, 0xb6, 0xc5, 0x9a, 0x84, 0x59, 0xa7, 0x81, },
+ { 0x7e, },
+ { 0x1e, 0x21, },
+ { 0x26, 0xd3, 0xdd, },
+ { 0x2c, 0xd4, 0xb3, 0x3d, },
+ { 0x86, 0x7b, 0x76, 0x3c, 0xf0, },
+ { 0x12, 0xc3, 0x70, 0x1d, 0x55, 0x18, },
+ { 0x96, 0xc2, 0xbd, 0x61, 0x55, 0xf4, 0x24, },
+ { 0x20, 0x51, 0xf7, 0x86, 0x58, 0x8f, 0x07, 0x2a, },
+ { 0x93, 0x15, 0xa8, 0x1d, 0xda, 0x97, 0xee, 0x0e, 0x6c, },
+ { 0x39, 0x93, 0xdf, 0xd5, 0x0e, 0xca, 0xdc, 0x7a, 0x92, 0xce, },
+ { 0x60, 0xd5, 0xfd, 0xf5, 0x1b, 0x26, 0x82, 0x26, 0x73, 0x02, 0xbc, },
+ { 0x98, 0xf2, 0x34, 0xe1, 0xf5, 0xfb, 0x00, 0xac, 0x10, 0x4a, 0x38, 0x9f, },
+ { 0xda, 0x3a, 0x92, 0x8a, 0xd0, 0xcd, 0x12, 0xcd, 0x15, 0xbb, 0xab, 0x77,
+ 0x66, },
+ { 0xa2, 0x92, 0x1a, 0xe5, 0xca, 0x0c, 0x30, 0x75, 0xeb, 0xaf, 0x00, 0x31,
+ 0x55, 0x66, },
+ { 0x06, 0xea, 0xfd, 0x3e, 0x86, 0x38, 0x62, 0x4e, 0xa9, 0x12, 0xa4, 0x12,
+ 0x43, 0xbf, 0xa1, },
+ { 0xe4, 0x71, 0x7b, 0x94, 0xdb, 0xa0, 0xd2, 0xff, 0x9b, 0xeb, 0xad, 0x8e,
+ 0x95, 0x8a, 0xc5, 0xed, },
+ { 0x25, 0x5a, 0x77, 0x71, 0x41, 0x0e, 0x7a, 0xe9, 0xed, 0x0c, 0x10, 0xef,
+ 0xf6, 0x2b, 0x3a, 0xba, 0x60, },
+ { 0xee, 0xe2, 0xa3, 0x67, 0x64, 0x1d, 0xc6, 0x04, 0xc4, 0xe1, 0x68, 0xd2,
+ 0x6e, 0xd2, 0x91, 0x75, 0x53, 0x07, },
+ { 0xe0, 0xf6, 0x4d, 0x8f, 0x68, 0xfc, 0x06, 0x7e, 0x18, 0x79, 0x7f, 0x2b,
+ 0x6d, 0xef, 0x46, 0x7f, 0xab, 0xb2, 0xad, },
+ { 0x3d, 0x35, 0x88, 0x9f, 0x2e, 0xcf, 0x96, 0x45, 0x07, 0x60, 0x71, 0x94,
+ 0x00, 0x8d, 0xbf, 0xf4, 0xef, 0x46, 0x2e, 0x3c, },
+ { 0x43, 0xcf, 0x98, 0xf7, 0x2d, 0xf4, 0x17, 0xe7, 0x8c, 0x05, 0x2d, 0x9b,
+ 0x24, 0xfb, 0x4d, 0xea, 0x4a, 0xec, 0x01, 0x25, 0x29, },
+ { 0x8e, 0x73, 0x9a, 0x78, 0x11, 0xfe, 0x48, 0xa0, 0x3b, 0x1a, 0x26, 0xdf,
+ 0x25, 0xe9, 0x59, 0x1c, 0x70, 0x07, 0x9f, 0xdc, 0xa0, 0xa6, },
+ { 0xe8, 0x47, 0x71, 0xc7, 0x3e, 0xdf, 0xb5, 0x13, 0xb9, 0x85, 0x13, 0xa8,
+ 0x54, 0x47, 0x6e, 0x59, 0x96, 0x09, 0x13, 0x5f, 0x82, 0x16, 0x0b, },
+ { 0xfb, 0xc0, 0x8c, 0x03, 0x21, 0xb3, 0xc4, 0xb5, 0x43, 0x32, 0x6c, 0xea,
+ 0x7f, 0xa8, 0x43, 0x91, 0xe8, 0x4e, 0x3f, 0xbf, 0x45, 0x58, 0x6a, 0xa3, },
+ { 0x55, 0xf8, 0xf3, 0x00, 0x76, 0x09, 0xef, 0x69, 0x5d, 0xd2, 0x8a, 0xf2,
+ 0x65, 0xc3, 0xcb, 0x9b, 0x43, 0xfd, 0xb1, 0x7e, 0x7f, 0xa1, 0x94, 0xb0,
+ 0xd7, },
+ { 0xaa, 0x13, 0xc1, 0x51, 0x40, 0x6d, 0x8d, 0x4c, 0x0a, 0x95, 0x64, 0x7b,
+ 0xd1, 0x96, 0xb6, 0x56, 0xb4, 0x5b, 0xcf, 0xd6, 0xd9, 0x15, 0x97, 0xdd,
+ 0xb6, 0xef, },
+ { 0xaf, 0xb7, 0x36, 0xb0, 0x04, 0xdb, 0xd7, 0x9c, 0x9a, 0x44, 0xc4, 0xf6,
+ 0x1f, 0x12, 0x21, 0x2d, 0x59, 0x30, 0x54, 0xab, 0x27, 0x61, 0xa3, 0x57,
+ 0xef, 0xf8, 0x53, },
+ { 0x97, 0x34, 0x45, 0x3e, 0xce, 0x7c, 0x35, 0xa2, 0xda, 0x9f, 0x4b, 0x46,
+ 0x6c, 0x11, 0x67, 0xff, 0x2f, 0x76, 0x58, 0x15, 0x71, 0xfa, 0x44, 0x89,
+ 0x89, 0xfd, 0xf7, 0x99, },
+ { 0x1f, 0xb1, 0x62, 0xeb, 0x83, 0xc5, 0x9c, 0x89, 0xf9, 0x2c, 0xd2, 0x03,
+ 0x61, 0xbc, 0xbb, 0xa5, 0x74, 0x0e, 0x9b, 0x7e, 0x82, 0x3e, 0x70, 0x0a,
+ 0xa9, 0x8f, 0x2b, 0x59, 0xfb, },
+ { 0xf8, 0xca, 0x5e, 0x3a, 0x4f, 0x9e, 0x10, 0x69, 0x10, 0xd5, 0x4c, 0xeb,
+ 0x1a, 0x0f, 0x3c, 0x6a, 0x98, 0xf5, 0xb0, 0x97, 0x5b, 0x37, 0x2f, 0x0d,
+ 0xbd, 0x42, 0x4b, 0x69, 0xa1, 0x82, },
+ { 0x12, 0x8c, 0x6d, 0x52, 0x08, 0xef, 0x74, 0xb2, 0xe6, 0xaa, 0xd3, 0xb0,
+ 0x26, 0xb0, 0xd9, 0x94, 0xb6, 0x11, 0x45, 0x0e, 0x36, 0x71, 0x14, 0x2d,
+ 0x41, 0x8c, 0x21, 0x53, 0x31, 0xe9, 0x68, },
+ { 0xee, 0xea, 0x0d, 0x89, 0x47, 0x7e, 0x72, 0xd1, 0xd8, 0xce, 0x58, 0x4c,
+ 0x94, 0x1f, 0x0d, 0x51, 0x08, 0xa3, 0xb6, 0x3d, 0xe7, 0x82, 0x46, 0x92,
+ 0xd6, 0x98, 0x6b, 0x07, 0x10, 0x65, 0x52, 0x65, },
+};
+
+static const u8 blake2s_hmac_testvecs[][BLAKE2S_HASH_SIZE] __initconst = {
+ { 0xce, 0xe1, 0x57, 0x69, 0x82, 0xdc, 0xbf, 0x43, 0xad, 0x56, 0x4c, 0x70,
+ 0xed, 0x68, 0x16, 0x96, 0xcf, 0xa4, 0x73, 0xe8, 0xe8, 0xfc, 0x32, 0x79,
+ 0x08, 0x0a, 0x75, 0x82, 0xda, 0x3f, 0x05, 0x11, },
+ { 0x77, 0x2f, 0x0c, 0x71, 0x41, 0xf4, 0x4b, 0x2b, 0xb3, 0xc6, 0xb6, 0xf9,
+ 0x60, 0xde, 0xe4, 0x52, 0x38, 0x66, 0xe8, 0xbf, 0x9b, 0x96, 0xc4, 0x9f,
+ 0x60, 0xd9, 0x24, 0x37, 0x99, 0xd6, 0xec, 0x31, },
+};
+
+bool __init blake2s_selftest(void)
+{
+ u8 key[BLAKE2S_KEY_SIZE];
+ u8 buf[ARRAY_SIZE(blake2s_testvecs)];
+ u8 hash[BLAKE2S_HASH_SIZE];
+ struct blake2s_state state;
+ bool success = true;
+ int i, l;
+
+ key[0] = key[1] = 1;
+ for (i = 2; i < sizeof(key); ++i)
+ key[i] = key[i - 2] + key[i - 1];
+
+ for (i = 0; i < sizeof(buf); ++i)
+ buf[i] = (u8)i;
+
+ for (i = l = 0; i < ARRAY_SIZE(blake2s_testvecs); l = (l + 37) % ++i) {
+ int outlen = 1 + i % BLAKE2S_HASH_SIZE;
+ int keylen = (13 * i) % (BLAKE2S_KEY_SIZE + 1);
+
+ blake2s(hash, buf, key + BLAKE2S_KEY_SIZE - keylen, outlen, i,
+ keylen);
+ if (memcmp(hash, blake2s_testvecs[i], outlen)) {
+ pr_err("blake2s self-test %d: FAIL\n", i + 1);
+ success = false;
+ }
+
+ if (!keylen)
+ blake2s_init(&state, outlen);
+ else
+ blake2s_init_key(&state, outlen,
+ key + BLAKE2S_KEY_SIZE - keylen,
+ keylen);
+
+ blake2s_update(&state, buf, l);
+ blake2s_update(&state, buf + l, i - l);
+ blake2s_final(&state, hash);
+ if (memcmp(hash, blake2s_testvecs[i], outlen)) {
+ pr_err("blake2s init/update/final self-test %d: FAIL\n",
+ i + 1);
+ success = false;
+ }
+ }
+
+ if (success) {
+ blake2s256_hmac(hash, buf, key, sizeof(buf), sizeof(key));
+ success &= !memcmp(hash, blake2s_hmac_testvecs[0], BLAKE2S_HASH_SIZE);
+
+ blake2s256_hmac(hash, key, buf, sizeof(key), sizeof(buf));
+ success &= !memcmp(hash, blake2s_hmac_testvecs[1], BLAKE2S_HASH_SIZE);
+
+ if (!success)
+ pr_err("blake2s256_hmac self-test: FAIL\n");
+ }
+
+ return success;
+}
diff --git a/lib/crypto/blake2s.c b/lib/crypto/blake2s.c
new file mode 100644
index 0000000..41025a3
--- /dev/null
+++ b/lib/crypto/blake2s.c
@@ -0,0 +1,126 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ *
+ * This is an implementation of the BLAKE2s hash and PRF functions.
+ *
+ * Information: https://blake2.net/
+ *
+ */
+
+#include <crypto/internal/blake2s.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/bug.h>
+#include <asm/unaligned.h>
+
+bool blake2s_selftest(void);
+
+void blake2s_update(struct blake2s_state *state, const u8 *in, size_t inlen)
+{
+ const size_t fill = BLAKE2S_BLOCK_SIZE - state->buflen;
+
+ if (unlikely(!inlen))
+ return;
+ if (inlen > fill) {
+ memcpy(state->buf + state->buflen, in, fill);
+ if (IS_ENABLED(CONFIG_CRYPTO_ARCH_HAVE_LIB_BLAKE2S))
+ blake2s_compress_arch(state, state->buf, 1,
+ BLAKE2S_BLOCK_SIZE);
+ else
+ blake2s_compress_generic(state, state->buf, 1,
+ BLAKE2S_BLOCK_SIZE);
+ state->buflen = 0;
+ in += fill;
+ inlen -= fill;
+ }
+ if (inlen > BLAKE2S_BLOCK_SIZE) {
+ const size_t nblocks = DIV_ROUND_UP(inlen, BLAKE2S_BLOCK_SIZE);
+ /* Hash one less (full) block than strictly possible */
+ if (IS_ENABLED(CONFIG_CRYPTO_ARCH_HAVE_LIB_BLAKE2S))
+ blake2s_compress_arch(state, in, nblocks - 1,
+ BLAKE2S_BLOCK_SIZE);
+ else
+ blake2s_compress_generic(state, in, nblocks - 1,
+ BLAKE2S_BLOCK_SIZE);
+ in += BLAKE2S_BLOCK_SIZE * (nblocks - 1);
+ inlen -= BLAKE2S_BLOCK_SIZE * (nblocks - 1);
+ }
+ memcpy(state->buf + state->buflen, in, inlen);
+ state->buflen += inlen;
+}
+EXPORT_SYMBOL(blake2s_update);
+
+void blake2s_final(struct blake2s_state *state, u8 *out)
+{
+ WARN_ON(IS_ENABLED(DEBUG) && !out);
+ blake2s_set_lastblock(state);
+ memset(state->buf + state->buflen, 0,
+ BLAKE2S_BLOCK_SIZE - state->buflen); /* Padding */
+ if (IS_ENABLED(CONFIG_CRYPTO_ARCH_HAVE_LIB_BLAKE2S))
+ blake2s_compress_arch(state, state->buf, 1, state->buflen);
+ else
+ blake2s_compress_generic(state, state->buf, 1, state->buflen);
+ cpu_to_le32_array(state->h, ARRAY_SIZE(state->h));
+ memcpy(out, state->h, state->outlen);
+ memzero_explicit(state, sizeof(*state));
+}
+EXPORT_SYMBOL(blake2s_final);
+
+void blake2s256_hmac(u8 *out, const u8 *in, const u8 *key, const size_t inlen,
+ const size_t keylen)
+{
+ struct blake2s_state state;
+ u8 x_key[BLAKE2S_BLOCK_SIZE] __aligned(__alignof__(u32)) = { 0 };
+ u8 i_hash[BLAKE2S_HASH_SIZE] __aligned(__alignof__(u32));
+ int i;
+
+ if (keylen > BLAKE2S_BLOCK_SIZE) {
+ blake2s_init(&state, BLAKE2S_HASH_SIZE);
+ blake2s_update(&state, key, keylen);
+ blake2s_final(&state, x_key);
+ } else
+ memcpy(x_key, key, keylen);
+
+ for (i = 0; i < BLAKE2S_BLOCK_SIZE; ++i)
+ x_key[i] ^= 0x36;
+
+ blake2s_init(&state, BLAKE2S_HASH_SIZE);
+ blake2s_update(&state, x_key, BLAKE2S_BLOCK_SIZE);
+ blake2s_update(&state, in, inlen);
+ blake2s_final(&state, i_hash);
+
+ for (i = 0; i < BLAKE2S_BLOCK_SIZE; ++i)
+ x_key[i] ^= 0x5c ^ 0x36;
+
+ blake2s_init(&state, BLAKE2S_HASH_SIZE);
+ blake2s_update(&state, x_key, BLAKE2S_BLOCK_SIZE);
+ blake2s_update(&state, i_hash, BLAKE2S_HASH_SIZE);
+ blake2s_final(&state, i_hash);
+
+ memcpy(out, i_hash, BLAKE2S_HASH_SIZE);
+ memzero_explicit(x_key, BLAKE2S_BLOCK_SIZE);
+ memzero_explicit(i_hash, BLAKE2S_HASH_SIZE);
+}
+EXPORT_SYMBOL(blake2s256_hmac);
+
+static int __init mod_init(void)
+{
+ if (!IS_ENABLED(CONFIG_CRYPTO_MANAGER_DISABLE_TESTS) &&
+ WARN_ON(!blake2s_selftest()))
+ return -ENODEV;
+ return 0;
+}
+
+static void __exit mod_exit(void)
+{
+}
+
+module_init(mod_init);
+module_exit(mod_exit);
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("BLAKE2s hash function");
+MODULE_AUTHOR("Jason A. Donenfeld <Jason@zx2c4.com>");
diff --git a/lib/crypto/chacha.c b/lib/crypto/chacha.c
new file mode 100644
index 0000000..f5c9e06
--- /dev/null
+++ b/lib/crypto/chacha.c
@@ -0,0 +1,119 @@
+/*
+ * The "hash function" used as the core of the ChaCha stream cipher (RFC7539)
+ *
+ * Copyright (C) 2015 Martin Willi
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/bug.h>
+#include <linux/kernel.h>
+#include <linux/export.h>
+#include <linux/bitops.h>
+#include <linux/string.h>
+#include <linux/cryptohash.h>
+#include <asm/unaligned.h>
+#include <crypto/chacha.h>
+
+static void chacha_permute(u32 *x, int nrounds)
+{
+ int i;
+
+ /* whitelist the allowed round counts */
+ WARN_ON_ONCE(nrounds != 20 && nrounds != 12);
+
+ for (i = 0; i < nrounds; i += 2) {
+ x[0] += x[4]; x[12] = rol32(x[12] ^ x[0], 16);
+ x[1] += x[5]; x[13] = rol32(x[13] ^ x[1], 16);
+ x[2] += x[6]; x[14] = rol32(x[14] ^ x[2], 16);
+ x[3] += x[7]; x[15] = rol32(x[15] ^ x[3], 16);
+
+ x[8] += x[12]; x[4] = rol32(x[4] ^ x[8], 12);
+ x[9] += x[13]; x[5] = rol32(x[5] ^ x[9], 12);
+ x[10] += x[14]; x[6] = rol32(x[6] ^ x[10], 12);
+ x[11] += x[15]; x[7] = rol32(x[7] ^ x[11], 12);
+
+ x[0] += x[4]; x[12] = rol32(x[12] ^ x[0], 8);
+ x[1] += x[5]; x[13] = rol32(x[13] ^ x[1], 8);
+ x[2] += x[6]; x[14] = rol32(x[14] ^ x[2], 8);
+ x[3] += x[7]; x[15] = rol32(x[15] ^ x[3], 8);
+
+ x[8] += x[12]; x[4] = rol32(x[4] ^ x[8], 7);
+ x[9] += x[13]; x[5] = rol32(x[5] ^ x[9], 7);
+ x[10] += x[14]; x[6] = rol32(x[6] ^ x[10], 7);
+ x[11] += x[15]; x[7] = rol32(x[7] ^ x[11], 7);
+
+ x[0] += x[5]; x[15] = rol32(x[15] ^ x[0], 16);
+ x[1] += x[6]; x[12] = rol32(x[12] ^ x[1], 16);
+ x[2] += x[7]; x[13] = rol32(x[13] ^ x[2], 16);
+ x[3] += x[4]; x[14] = rol32(x[14] ^ x[3], 16);
+
+ x[10] += x[15]; x[5] = rol32(x[5] ^ x[10], 12);
+ x[11] += x[12]; x[6] = rol32(x[6] ^ x[11], 12);
+ x[8] += x[13]; x[7] = rol32(x[7] ^ x[8], 12);
+ x[9] += x[14]; x[4] = rol32(x[4] ^ x[9], 12);
+
+ x[0] += x[5]; x[15] = rol32(x[15] ^ x[0], 8);
+ x[1] += x[6]; x[12] = rol32(x[12] ^ x[1], 8);
+ x[2] += x[7]; x[13] = rol32(x[13] ^ x[2], 8);
+ x[3] += x[4]; x[14] = rol32(x[14] ^ x[3], 8);
+
+ x[10] += x[15]; x[5] = rol32(x[5] ^ x[10], 7);
+ x[11] += x[12]; x[6] = rol32(x[6] ^ x[11], 7);
+ x[8] += x[13]; x[7] = rol32(x[7] ^ x[8], 7);
+ x[9] += x[14]; x[4] = rol32(x[4] ^ x[9], 7);
+ }
+}
+
+/**
+ * chacha_block - generate one keystream block and increment block counter
+ * @state: input state matrix (16 32-bit words)
+ * @stream: output keystream block (64 bytes)
+ * @nrounds: number of rounds (20 or 12; 20 is recommended)
+ *
+ * This is the ChaCha core, a function from 64-byte strings to 64-byte strings.
+ * The caller has already converted the endianness of the input. This function
+ * also handles incrementing the block counter in the input matrix.
+ */
+void chacha_block_generic(u32 *state, u8 *stream, int nrounds)
+{
+ u32 x[16];
+ int i;
+
+ memcpy(x, state, 64);
+
+ chacha_permute(x, nrounds);
+
+ for (i = 0; i < ARRAY_SIZE(x); i++)
+ put_unaligned_le32(x[i] + state[i], &stream[i * sizeof(u32)]);
+
+ state[12]++;
+}
+EXPORT_SYMBOL(chacha_block_generic);
+
+/**
+ * hchacha_block_generic - abbreviated ChaCha core, for XChaCha
+ * @state: input state matrix (16 32-bit words)
+ * @out: output (8 32-bit words)
+ * @nrounds: number of rounds (20 or 12; 20 is recommended)
+ *
+ * HChaCha is the ChaCha equivalent of HSalsa and is an intermediate step
+ * towards XChaCha (see https://cr.yp.to/snuffle/xsalsa-20081128.pdf). HChaCha
+ * skips the final addition of the initial state, and outputs only certain words
+ * of the state. It should not be used for streaming directly.
+ */
+void hchacha_block_generic(const u32 *state, u32 *stream, int nrounds)
+{
+ u32 x[16];
+
+ memcpy(x, state, 64);
+
+ chacha_permute(x, nrounds);
+
+ memcpy(&stream[0], &x[0], 16);
+ memcpy(&stream[4], &x[12], 16);
+}
+EXPORT_SYMBOL(hchacha_block_generic);
diff --git a/lib/crypto/chacha20poly1305-selftest.c b/lib/crypto/chacha20poly1305-selftest.c
new file mode 100644
index 0000000..fa43ded
--- /dev/null
+++ b/lib/crypto/chacha20poly1305-selftest.c
@@ -0,0 +1,9082 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#include <crypto/chacha20poly1305.h>
+#include <crypto/chacha.h>
+#include <crypto/poly1305.h>
+
+#include <asm/unaligned.h>
+#include <linux/bug.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+
+struct chacha20poly1305_testvec {
+ const u8 *input, *output, *assoc, *nonce, *key;
+ size_t ilen, alen, nlen;
+ bool failure;
+};
+
+/* The first of these are the ChaCha20-Poly1305 AEAD test vectors from RFC7539
+ * 2.8.2. After they are generated by reference implementations. And the final
+ * marked ones are taken from wycheproof, but we only do these for the encrypt
+ * side, because mostly we're stressing the primitives rather than the actual
+ * chapoly construction.
+ */
+
+static const u8 enc_input001[] __initconst = {
+ 0x49, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74,
+ 0x2d, 0x44, 0x72, 0x61, 0x66, 0x74, 0x73, 0x20,
+ 0x61, 0x72, 0x65, 0x20, 0x64, 0x72, 0x61, 0x66,
+ 0x74, 0x20, 0x64, 0x6f, 0x63, 0x75, 0x6d, 0x65,
+ 0x6e, 0x74, 0x73, 0x20, 0x76, 0x61, 0x6c, 0x69,
+ 0x64, 0x20, 0x66, 0x6f, 0x72, 0x20, 0x61, 0x20,
+ 0x6d, 0x61, 0x78, 0x69, 0x6d, 0x75, 0x6d, 0x20,
+ 0x6f, 0x66, 0x20, 0x73, 0x69, 0x78, 0x20, 0x6d,
+ 0x6f, 0x6e, 0x74, 0x68, 0x73, 0x20, 0x61, 0x6e,
+ 0x64, 0x20, 0x6d, 0x61, 0x79, 0x20, 0x62, 0x65,
+ 0x20, 0x75, 0x70, 0x64, 0x61, 0x74, 0x65, 0x64,
+ 0x2c, 0x20, 0x72, 0x65, 0x70, 0x6c, 0x61, 0x63,
+ 0x65, 0x64, 0x2c, 0x20, 0x6f, 0x72, 0x20, 0x6f,
+ 0x62, 0x73, 0x6f, 0x6c, 0x65, 0x74, 0x65, 0x64,
+ 0x20, 0x62, 0x79, 0x20, 0x6f, 0x74, 0x68, 0x65,
+ 0x72, 0x20, 0x64, 0x6f, 0x63, 0x75, 0x6d, 0x65,
+ 0x6e, 0x74, 0x73, 0x20, 0x61, 0x74, 0x20, 0x61,
+ 0x6e, 0x79, 0x20, 0x74, 0x69, 0x6d, 0x65, 0x2e,
+ 0x20, 0x49, 0x74, 0x20, 0x69, 0x73, 0x20, 0x69,
+ 0x6e, 0x61, 0x70, 0x70, 0x72, 0x6f, 0x70, 0x72,
+ 0x69, 0x61, 0x74, 0x65, 0x20, 0x74, 0x6f, 0x20,
+ 0x75, 0x73, 0x65, 0x20, 0x49, 0x6e, 0x74, 0x65,
+ 0x72, 0x6e, 0x65, 0x74, 0x2d, 0x44, 0x72, 0x61,
+ 0x66, 0x74, 0x73, 0x20, 0x61, 0x73, 0x20, 0x72,
+ 0x65, 0x66, 0x65, 0x72, 0x65, 0x6e, 0x63, 0x65,
+ 0x20, 0x6d, 0x61, 0x74, 0x65, 0x72, 0x69, 0x61,
+ 0x6c, 0x20, 0x6f, 0x72, 0x20, 0x74, 0x6f, 0x20,
+ 0x63, 0x69, 0x74, 0x65, 0x20, 0x74, 0x68, 0x65,
+ 0x6d, 0x20, 0x6f, 0x74, 0x68, 0x65, 0x72, 0x20,
+ 0x74, 0x68, 0x61, 0x6e, 0x20, 0x61, 0x73, 0x20,
+ 0x2f, 0xe2, 0x80, 0x9c, 0x77, 0x6f, 0x72, 0x6b,
+ 0x20, 0x69, 0x6e, 0x20, 0x70, 0x72, 0x6f, 0x67,
+ 0x72, 0x65, 0x73, 0x73, 0x2e, 0x2f, 0xe2, 0x80,
+ 0x9d
+};
+static const u8 enc_output001[] __initconst = {
+ 0x64, 0xa0, 0x86, 0x15, 0x75, 0x86, 0x1a, 0xf4,
+ 0x60, 0xf0, 0x62, 0xc7, 0x9b, 0xe6, 0x43, 0xbd,
+ 0x5e, 0x80, 0x5c, 0xfd, 0x34, 0x5c, 0xf3, 0x89,
+ 0xf1, 0x08, 0x67, 0x0a, 0xc7, 0x6c, 0x8c, 0xb2,
+ 0x4c, 0x6c, 0xfc, 0x18, 0x75, 0x5d, 0x43, 0xee,
+ 0xa0, 0x9e, 0xe9, 0x4e, 0x38, 0x2d, 0x26, 0xb0,
+ 0xbd, 0xb7, 0xb7, 0x3c, 0x32, 0x1b, 0x01, 0x00,
+ 0xd4, 0xf0, 0x3b, 0x7f, 0x35, 0x58, 0x94, 0xcf,
+ 0x33, 0x2f, 0x83, 0x0e, 0x71, 0x0b, 0x97, 0xce,
+ 0x98, 0xc8, 0xa8, 0x4a, 0xbd, 0x0b, 0x94, 0x81,
+ 0x14, 0xad, 0x17, 0x6e, 0x00, 0x8d, 0x33, 0xbd,
+ 0x60, 0xf9, 0x82, 0xb1, 0xff, 0x37, 0xc8, 0x55,
+ 0x97, 0x97, 0xa0, 0x6e, 0xf4, 0xf0, 0xef, 0x61,
+ 0xc1, 0x86, 0x32, 0x4e, 0x2b, 0x35, 0x06, 0x38,
+ 0x36, 0x06, 0x90, 0x7b, 0x6a, 0x7c, 0x02, 0xb0,
+ 0xf9, 0xf6, 0x15, 0x7b, 0x53, 0xc8, 0x67, 0xe4,
+ 0xb9, 0x16, 0x6c, 0x76, 0x7b, 0x80, 0x4d, 0x46,
+ 0xa5, 0x9b, 0x52, 0x16, 0xcd, 0xe7, 0xa4, 0xe9,
+ 0x90, 0x40, 0xc5, 0xa4, 0x04, 0x33, 0x22, 0x5e,
+ 0xe2, 0x82, 0xa1, 0xb0, 0xa0, 0x6c, 0x52, 0x3e,
+ 0xaf, 0x45, 0x34, 0xd7, 0xf8, 0x3f, 0xa1, 0x15,
+ 0x5b, 0x00, 0x47, 0x71, 0x8c, 0xbc, 0x54, 0x6a,
+ 0x0d, 0x07, 0x2b, 0x04, 0xb3, 0x56, 0x4e, 0xea,
+ 0x1b, 0x42, 0x22, 0x73, 0xf5, 0x48, 0x27, 0x1a,
+ 0x0b, 0xb2, 0x31, 0x60, 0x53, 0xfa, 0x76, 0x99,
+ 0x19, 0x55, 0xeb, 0xd6, 0x31, 0x59, 0x43, 0x4e,
+ 0xce, 0xbb, 0x4e, 0x46, 0x6d, 0xae, 0x5a, 0x10,
+ 0x73, 0xa6, 0x72, 0x76, 0x27, 0x09, 0x7a, 0x10,
+ 0x49, 0xe6, 0x17, 0xd9, 0x1d, 0x36, 0x10, 0x94,
+ 0xfa, 0x68, 0xf0, 0xff, 0x77, 0x98, 0x71, 0x30,
+ 0x30, 0x5b, 0xea, 0xba, 0x2e, 0xda, 0x04, 0xdf,
+ 0x99, 0x7b, 0x71, 0x4d, 0x6c, 0x6f, 0x2c, 0x29,
+ 0xa6, 0xad, 0x5c, 0xb4, 0x02, 0x2b, 0x02, 0x70,
+ 0x9b, 0xee, 0xad, 0x9d, 0x67, 0x89, 0x0c, 0xbb,
+ 0x22, 0x39, 0x23, 0x36, 0xfe, 0xa1, 0x85, 0x1f,
+ 0x38
+};
+static const u8 enc_assoc001[] __initconst = {
+ 0xf3, 0x33, 0x88, 0x86, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x4e, 0x91
+};
+static const u8 enc_nonce001[] __initconst = {
+ 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08
+};
+static const u8 enc_key001[] __initconst = {
+ 0x1c, 0x92, 0x40, 0xa5, 0xeb, 0x55, 0xd3, 0x8a,
+ 0xf3, 0x33, 0x88, 0x86, 0x04, 0xf6, 0xb5, 0xf0,
+ 0x47, 0x39, 0x17, 0xc1, 0x40, 0x2b, 0x80, 0x09,
+ 0x9d, 0xca, 0x5c, 0xbc, 0x20, 0x70, 0x75, 0xc0
+};
+
+static const u8 enc_input002[] __initconst = { };
+static const u8 enc_output002[] __initconst = {
+ 0xea, 0xe0, 0x1e, 0x9e, 0x2c, 0x91, 0xaa, 0xe1,
+ 0xdb, 0x5d, 0x99, 0x3f, 0x8a, 0xf7, 0x69, 0x92
+};
+static const u8 enc_assoc002[] __initconst = { };
+static const u8 enc_nonce002[] __initconst = {
+ 0xca, 0xbf, 0x33, 0x71, 0x32, 0x45, 0x77, 0x8e
+};
+static const u8 enc_key002[] __initconst = {
+ 0x4c, 0xf5, 0x96, 0x83, 0x38, 0xe6, 0xae, 0x7f,
+ 0x2d, 0x29, 0x25, 0x76, 0xd5, 0x75, 0x27, 0x86,
+ 0x91, 0x9a, 0x27, 0x7a, 0xfb, 0x46, 0xc5, 0xef,
+ 0x94, 0x81, 0x79, 0x57, 0x14, 0x59, 0x40, 0x68
+};
+
+static const u8 enc_input003[] __initconst = { };
+static const u8 enc_output003[] __initconst = {
+ 0xdd, 0x6b, 0x3b, 0x82, 0xce, 0x5a, 0xbd, 0xd6,
+ 0xa9, 0x35, 0x83, 0xd8, 0x8c, 0x3d, 0x85, 0x77
+};
+static const u8 enc_assoc003[] __initconst = {
+ 0x33, 0x10, 0x41, 0x12, 0x1f, 0xf3, 0xd2, 0x6b
+};
+static const u8 enc_nonce003[] __initconst = {
+ 0x3d, 0x86, 0xb5, 0x6b, 0xc8, 0xa3, 0x1f, 0x1d
+};
+static const u8 enc_key003[] __initconst = {
+ 0x2d, 0xb0, 0x5d, 0x40, 0xc8, 0xed, 0x44, 0x88,
+ 0x34, 0xd1, 0x13, 0xaf, 0x57, 0xa1, 0xeb, 0x3a,
+ 0x2a, 0x80, 0x51, 0x36, 0xec, 0x5b, 0xbc, 0x08,
+ 0x93, 0x84, 0x21, 0xb5, 0x13, 0x88, 0x3c, 0x0d
+};
+
+static const u8 enc_input004[] __initconst = {
+ 0xa4
+};
+static const u8 enc_output004[] __initconst = {
+ 0xb7, 0x1b, 0xb0, 0x73, 0x59, 0xb0, 0x84, 0xb2,
+ 0x6d, 0x8e, 0xab, 0x94, 0x31, 0xa1, 0xae, 0xac,
+ 0x89
+};
+static const u8 enc_assoc004[] __initconst = {
+ 0x6a, 0xe2, 0xad, 0x3f, 0x88, 0x39, 0x5a, 0x40
+};
+static const u8 enc_nonce004[] __initconst = {
+ 0xd2, 0x32, 0x1f, 0x29, 0x28, 0xc6, 0xc4, 0xc4
+};
+static const u8 enc_key004[] __initconst = {
+ 0x4b, 0x28, 0x4b, 0xa3, 0x7b, 0xbe, 0xe9, 0xf8,
+ 0x31, 0x80, 0x82, 0xd7, 0xd8, 0xe8, 0xb5, 0xa1,
+ 0xe2, 0x18, 0x18, 0x8a, 0x9c, 0xfa, 0xa3, 0x3d,
+ 0x25, 0x71, 0x3e, 0x40, 0xbc, 0x54, 0x7a, 0x3e
+};
+
+static const u8 enc_input005[] __initconst = {
+ 0x2d
+};
+static const u8 enc_output005[] __initconst = {
+ 0xbf, 0xe1, 0x5b, 0x0b, 0xdb, 0x6b, 0xf5, 0x5e,
+ 0x6c, 0x5d, 0x84, 0x44, 0x39, 0x81, 0xc1, 0x9c,
+ 0xac
+};
+static const u8 enc_assoc005[] __initconst = { };
+static const u8 enc_nonce005[] __initconst = {
+ 0x20, 0x1c, 0xaa, 0x5f, 0x9c, 0xbf, 0x92, 0x30
+};
+static const u8 enc_key005[] __initconst = {
+ 0x66, 0xca, 0x9c, 0x23, 0x2a, 0x4b, 0x4b, 0x31,
+ 0x0e, 0x92, 0x89, 0x8b, 0xf4, 0x93, 0xc7, 0x87,
+ 0x98, 0xa3, 0xd8, 0x39, 0xf8, 0xf4, 0xa7, 0x01,
+ 0xc0, 0x2e, 0x0a, 0xa6, 0x7e, 0x5a, 0x78, 0x87
+};
+
+static const u8 enc_input006[] __initconst = {
+ 0x33, 0x2f, 0x94, 0xc1, 0xa4, 0xef, 0xcc, 0x2a,
+ 0x5b, 0xa6, 0xe5, 0x8f, 0x1d, 0x40, 0xf0, 0x92,
+ 0x3c, 0xd9, 0x24, 0x11, 0xa9, 0x71, 0xf9, 0x37,
+ 0x14, 0x99, 0xfa, 0xbe, 0xe6, 0x80, 0xde, 0x50,
+ 0xc9, 0x96, 0xd4, 0xb0, 0xec, 0x9e, 0x17, 0xec,
+ 0xd2, 0x5e, 0x72, 0x99, 0xfc, 0x0a, 0xe1, 0xcb,
+ 0x48, 0xd2, 0x85, 0xdd, 0x2f, 0x90, 0xe0, 0x66,
+ 0x3b, 0xe6, 0x20, 0x74, 0xbe, 0x23, 0x8f, 0xcb,
+ 0xb4, 0xe4, 0xda, 0x48, 0x40, 0xa6, 0xd1, 0x1b,
+ 0xc7, 0x42, 0xce, 0x2f, 0x0c, 0xa6, 0x85, 0x6e,
+ 0x87, 0x37, 0x03, 0xb1, 0x7c, 0x25, 0x96, 0xa3,
+ 0x05, 0xd8, 0xb0, 0xf4, 0xed, 0xea, 0xc2, 0xf0,
+ 0x31, 0x98, 0x6c, 0xd1, 0x14, 0x25, 0xc0, 0xcb,
+ 0x01, 0x74, 0xd0, 0x82, 0xf4, 0x36, 0xf5, 0x41,
+ 0xd5, 0xdc, 0xca, 0xc5, 0xbb, 0x98, 0xfe, 0xfc,
+ 0x69, 0x21, 0x70, 0xd8, 0xa4, 0x4b, 0xc8, 0xde,
+ 0x8f
+};
+static const u8 enc_output006[] __initconst = {
+ 0x8b, 0x06, 0xd3, 0x31, 0xb0, 0x93, 0x45, 0xb1,
+ 0x75, 0x6e, 0x26, 0xf9, 0x67, 0xbc, 0x90, 0x15,
+ 0x81, 0x2c, 0xb5, 0xf0, 0xc6, 0x2b, 0xc7, 0x8c,
+ 0x56, 0xd1, 0xbf, 0x69, 0x6c, 0x07, 0xa0, 0xda,
+ 0x65, 0x27, 0xc9, 0x90, 0x3d, 0xef, 0x4b, 0x11,
+ 0x0f, 0x19, 0x07, 0xfd, 0x29, 0x92, 0xd9, 0xc8,
+ 0xf7, 0x99, 0x2e, 0x4a, 0xd0, 0xb8, 0x2c, 0xdc,
+ 0x93, 0xf5, 0x9e, 0x33, 0x78, 0xd1, 0x37, 0xc3,
+ 0x66, 0xd7, 0x5e, 0xbc, 0x44, 0xbf, 0x53, 0xa5,
+ 0xbc, 0xc4, 0xcb, 0x7b, 0x3a, 0x8e, 0x7f, 0x02,
+ 0xbd, 0xbb, 0xe7, 0xca, 0xa6, 0x6c, 0x6b, 0x93,
+ 0x21, 0x93, 0x10, 0x61, 0xe7, 0x69, 0xd0, 0x78,
+ 0xf3, 0x07, 0x5a, 0x1a, 0x8f, 0x73, 0xaa, 0xb1,
+ 0x4e, 0xd3, 0xda, 0x4f, 0xf3, 0x32, 0xe1, 0x66,
+ 0x3e, 0x6c, 0xc6, 0x13, 0xba, 0x06, 0x5b, 0xfc,
+ 0x6a, 0xe5, 0x6f, 0x60, 0xfb, 0x07, 0x40, 0xb0,
+ 0x8c, 0x9d, 0x84, 0x43, 0x6b, 0xc1, 0xf7, 0x8d,
+ 0x8d, 0x31, 0xf7, 0x7a, 0x39, 0x4d, 0x8f, 0x9a,
+ 0xeb
+};
+static const u8 enc_assoc006[] __initconst = {
+ 0x70, 0xd3, 0x33, 0xf3, 0x8b, 0x18, 0x0b
+};
+static const u8 enc_nonce006[] __initconst = {
+ 0xdf, 0x51, 0x84, 0x82, 0x42, 0x0c, 0x75, 0x9c
+};
+static const u8 enc_key006[] __initconst = {
+ 0x68, 0x7b, 0x8d, 0x8e, 0xe3, 0xc4, 0xdd, 0xae,
+ 0xdf, 0x72, 0x7f, 0x53, 0x72, 0x25, 0x1e, 0x78,
+ 0x91, 0xcb, 0x69, 0x76, 0x1f, 0x49, 0x93, 0xf9,
+ 0x6f, 0x21, 0xcc, 0x39, 0x9c, 0xad, 0xb1, 0x01
+};
+
+static const u8 enc_input007[] __initconst = {
+ 0x9b, 0x18, 0xdb, 0xdd, 0x9a, 0x0f, 0x3e, 0xa5,
+ 0x15, 0x17, 0xde, 0xdf, 0x08, 0x9d, 0x65, 0x0a,
+ 0x67, 0x30, 0x12, 0xe2, 0x34, 0x77, 0x4b, 0xc1,
+ 0xd9, 0xc6, 0x1f, 0xab, 0xc6, 0x18, 0x50, 0x17,
+ 0xa7, 0x9d, 0x3c, 0xa6, 0xc5, 0x35, 0x8c, 0x1c,
+ 0xc0, 0xa1, 0x7c, 0x9f, 0x03, 0x89, 0xca, 0xe1,
+ 0xe6, 0xe9, 0xd4, 0xd3, 0x88, 0xdb, 0xb4, 0x51,
+ 0x9d, 0xec, 0xb4, 0xfc, 0x52, 0xee, 0x6d, 0xf1,
+ 0x75, 0x42, 0xc6, 0xfd, 0xbd, 0x7a, 0x8e, 0x86,
+ 0xfc, 0x44, 0xb3, 0x4f, 0xf3, 0xea, 0x67, 0x5a,
+ 0x41, 0x13, 0xba, 0xb0, 0xdc, 0xe1, 0xd3, 0x2a,
+ 0x7c, 0x22, 0xb3, 0xca, 0xac, 0x6a, 0x37, 0x98,
+ 0x3e, 0x1d, 0x40, 0x97, 0xf7, 0x9b, 0x1d, 0x36,
+ 0x6b, 0xb3, 0x28, 0xbd, 0x60, 0x82, 0x47, 0x34,
+ 0xaa, 0x2f, 0x7d, 0xe9, 0xa8, 0x70, 0x81, 0x57,
+ 0xd4, 0xb9, 0x77, 0x0a, 0x9d, 0x29, 0xa7, 0x84,
+ 0x52, 0x4f, 0xc2, 0x4a, 0x40, 0x3b, 0x3c, 0xd4,
+ 0xc9, 0x2a, 0xdb, 0x4a, 0x53, 0xc4, 0xbe, 0x80,
+ 0xe9, 0x51, 0x7f, 0x8f, 0xc7, 0xa2, 0xce, 0x82,
+ 0x5c, 0x91, 0x1e, 0x74, 0xd9, 0xd0, 0xbd, 0xd5,
+ 0xf3, 0xfd, 0xda, 0x4d, 0x25, 0xb4, 0xbb, 0x2d,
+ 0xac, 0x2f, 0x3d, 0x71, 0x85, 0x7b, 0xcf, 0x3c,
+ 0x7b, 0x3e, 0x0e, 0x22, 0x78, 0x0c, 0x29, 0xbf,
+ 0xe4, 0xf4, 0x57, 0xb3, 0xcb, 0x49, 0xa0, 0xfc,
+ 0x1e, 0x05, 0x4e, 0x16, 0xbc, 0xd5, 0xa8, 0xa3,
+ 0xee, 0x05, 0x35, 0xc6, 0x7c, 0xab, 0x60, 0x14,
+ 0x55, 0x1a, 0x8e, 0xc5, 0x88, 0x5d, 0xd5, 0x81,
+ 0xc2, 0x81, 0xa5, 0xc4, 0x60, 0xdb, 0xaf, 0x77,
+ 0x91, 0xe1, 0xce, 0xa2, 0x7e, 0x7f, 0x42, 0xe3,
+ 0xb0, 0x13, 0x1c, 0x1f, 0x25, 0x60, 0x21, 0xe2,
+ 0x40, 0x5f, 0x99, 0xb7, 0x73, 0xec, 0x9b, 0x2b,
+ 0xf0, 0x65, 0x11, 0xc8, 0xd0, 0x0a, 0x9f, 0xd3
+};
+static const u8 enc_output007[] __initconst = {
+ 0x85, 0x04, 0xc2, 0xed, 0x8d, 0xfd, 0x97, 0x5c,
+ 0xd2, 0xb7, 0xe2, 0xc1, 0x6b, 0xa3, 0xba, 0xf8,
+ 0xc9, 0x50, 0xc3, 0xc6, 0xa5, 0xe3, 0xa4, 0x7c,
+ 0xc3, 0x23, 0x49, 0x5e, 0xa9, 0xb9, 0x32, 0xeb,
+ 0x8a, 0x7c, 0xca, 0xe5, 0xec, 0xfb, 0x7c, 0xc0,
+ 0xcb, 0x7d, 0xdc, 0x2c, 0x9d, 0x92, 0x55, 0x21,
+ 0x0a, 0xc8, 0x43, 0x63, 0x59, 0x0a, 0x31, 0x70,
+ 0x82, 0x67, 0x41, 0x03, 0xf8, 0xdf, 0xf2, 0xac,
+ 0xa7, 0x02, 0xd4, 0xd5, 0x8a, 0x2d, 0xc8, 0x99,
+ 0x19, 0x66, 0xd0, 0xf6, 0x88, 0x2c, 0x77, 0xd9,
+ 0xd4, 0x0d, 0x6c, 0xbd, 0x98, 0xde, 0xe7, 0x7f,
+ 0xad, 0x7e, 0x8a, 0xfb, 0xe9, 0x4b, 0xe5, 0xf7,
+ 0xe5, 0x50, 0xa0, 0x90, 0x3f, 0xd6, 0x22, 0x53,
+ 0xe3, 0xfe, 0x1b, 0xcc, 0x79, 0x3b, 0xec, 0x12,
+ 0x47, 0x52, 0xa7, 0xd6, 0x04, 0xe3, 0x52, 0xe6,
+ 0x93, 0x90, 0x91, 0x32, 0x73, 0x79, 0xb8, 0xd0,
+ 0x31, 0xde, 0x1f, 0x9f, 0x2f, 0x05, 0x38, 0x54,
+ 0x2f, 0x35, 0x04, 0x39, 0xe0, 0xa7, 0xba, 0xc6,
+ 0x52, 0xf6, 0x37, 0x65, 0x4c, 0x07, 0xa9, 0x7e,
+ 0xb3, 0x21, 0x6f, 0x74, 0x8c, 0xc9, 0xde, 0xdb,
+ 0x65, 0x1b, 0x9b, 0xaa, 0x60, 0xb1, 0x03, 0x30,
+ 0x6b, 0xb2, 0x03, 0xc4, 0x1c, 0x04, 0xf8, 0x0f,
+ 0x64, 0xaf, 0x46, 0xe4, 0x65, 0x99, 0x49, 0xe2,
+ 0xea, 0xce, 0x78, 0x00, 0xd8, 0x8b, 0xd5, 0x2e,
+ 0xcf, 0xfc, 0x40, 0x49, 0xe8, 0x58, 0xdc, 0x34,
+ 0x9c, 0x8c, 0x61, 0xbf, 0x0a, 0x8e, 0xec, 0x39,
+ 0xa9, 0x30, 0x05, 0x5a, 0xd2, 0x56, 0x01, 0xc7,
+ 0xda, 0x8f, 0x4e, 0xbb, 0x43, 0xa3, 0x3a, 0xf9,
+ 0x15, 0x2a, 0xd0, 0xa0, 0x7a, 0x87, 0x34, 0x82,
+ 0xfe, 0x8a, 0xd1, 0x2d, 0x5e, 0xc7, 0xbf, 0x04,
+ 0x53, 0x5f, 0x3b, 0x36, 0xd4, 0x25, 0x5c, 0x34,
+ 0x7a, 0x8d, 0xd5, 0x05, 0xce, 0x72, 0xca, 0xef,
+ 0x7a, 0x4b, 0xbc, 0xb0, 0x10, 0x5c, 0x96, 0x42,
+ 0x3a, 0x00, 0x98, 0xcd, 0x15, 0xe8, 0xb7, 0x53
+};
+static const u8 enc_assoc007[] __initconst = { };
+static const u8 enc_nonce007[] __initconst = {
+ 0xde, 0x7b, 0xef, 0xc3, 0x65, 0x1b, 0x68, 0xb0
+};
+static const u8 enc_key007[] __initconst = {
+ 0x8d, 0xb8, 0x91, 0x48, 0xf0, 0xe7, 0x0a, 0xbd,
+ 0xf9, 0x3f, 0xcd, 0xd9, 0xa0, 0x1e, 0x42, 0x4c,
+ 0xe7, 0xde, 0x25, 0x3d, 0xa3, 0xd7, 0x05, 0x80,
+ 0x8d, 0xf2, 0x82, 0xac, 0x44, 0x16, 0x51, 0x01
+};
+
+static const u8 enc_input008[] __initconst = {
+ 0xc3, 0x09, 0x94, 0x62, 0xe6, 0x46, 0x2e, 0x10,
+ 0xbe, 0x00, 0xe4, 0xfc, 0xf3, 0x40, 0xa3, 0xe2,
+ 0x0f, 0xc2, 0x8b, 0x28, 0xdc, 0xba, 0xb4, 0x3c,
+ 0xe4, 0x21, 0x58, 0x61, 0xcd, 0x8b, 0xcd, 0xfb,
+ 0xac, 0x94, 0xa1, 0x45, 0xf5, 0x1c, 0xe1, 0x12,
+ 0xe0, 0x3b, 0x67, 0x21, 0x54, 0x5e, 0x8c, 0xaa,
+ 0xcf, 0xdb, 0xb4, 0x51, 0xd4, 0x13, 0xda, 0xe6,
+ 0x83, 0x89, 0xb6, 0x92, 0xe9, 0x21, 0x76, 0xa4,
+ 0x93, 0x7d, 0x0e, 0xfd, 0x96, 0x36, 0x03, 0x91,
+ 0x43, 0x5c, 0x92, 0x49, 0x62, 0x61, 0x7b, 0xeb,
+ 0x43, 0x89, 0xb8, 0x12, 0x20, 0x43, 0xd4, 0x47,
+ 0x06, 0x84, 0xee, 0x47, 0xe9, 0x8a, 0x73, 0x15,
+ 0x0f, 0x72, 0xcf, 0xed, 0xce, 0x96, 0xb2, 0x7f,
+ 0x21, 0x45, 0x76, 0xeb, 0x26, 0x28, 0x83, 0x6a,
+ 0xad, 0xaa, 0xa6, 0x81, 0xd8, 0x55, 0xb1, 0xa3,
+ 0x85, 0xb3, 0x0c, 0xdf, 0xf1, 0x69, 0x2d, 0x97,
+ 0x05, 0x2a, 0xbc, 0x7c, 0x7b, 0x25, 0xf8, 0x80,
+ 0x9d, 0x39, 0x25, 0xf3, 0x62, 0xf0, 0x66, 0x5e,
+ 0xf4, 0xa0, 0xcf, 0xd8, 0xfd, 0x4f, 0xb1, 0x1f,
+ 0x60, 0x3a, 0x08, 0x47, 0xaf, 0xe1, 0xf6, 0x10,
+ 0x77, 0x09, 0xa7, 0x27, 0x8f, 0x9a, 0x97, 0x5a,
+ 0x26, 0xfa, 0xfe, 0x41, 0x32, 0x83, 0x10, 0xe0,
+ 0x1d, 0xbf, 0x64, 0x0d, 0xf4, 0x1c, 0x32, 0x35,
+ 0xe5, 0x1b, 0x36, 0xef, 0xd4, 0x4a, 0x93, 0x4d,
+ 0x00, 0x7c, 0xec, 0x02, 0x07, 0x8b, 0x5d, 0x7d,
+ 0x1b, 0x0e, 0xd1, 0xa6, 0xa5, 0x5d, 0x7d, 0x57,
+ 0x88, 0xa8, 0xcc, 0x81, 0xb4, 0x86, 0x4e, 0xb4,
+ 0x40, 0xe9, 0x1d, 0xc3, 0xb1, 0x24, 0x3e, 0x7f,
+ 0xcc, 0x8a, 0x24, 0x9b, 0xdf, 0x6d, 0xf0, 0x39,
+ 0x69, 0x3e, 0x4c, 0xc0, 0x96, 0xe4, 0x13, 0xda,
+ 0x90, 0xda, 0xf4, 0x95, 0x66, 0x8b, 0x17, 0x17,
+ 0xfe, 0x39, 0x43, 0x25, 0xaa, 0xda, 0xa0, 0x43,
+ 0x3c, 0xb1, 0x41, 0x02, 0xa3, 0xf0, 0xa7, 0x19,
+ 0x59, 0xbc, 0x1d, 0x7d, 0x6c, 0x6d, 0x91, 0x09,
+ 0x5c, 0xb7, 0x5b, 0x01, 0xd1, 0x6f, 0x17, 0x21,
+ 0x97, 0xbf, 0x89, 0x71, 0xa5, 0xb0, 0x6e, 0x07,
+ 0x45, 0xfd, 0x9d, 0xea, 0x07, 0xf6, 0x7a, 0x9f,
+ 0x10, 0x18, 0x22, 0x30, 0x73, 0xac, 0xd4, 0x6b,
+ 0x72, 0x44, 0xed, 0xd9, 0x19, 0x9b, 0x2d, 0x4a,
+ 0x41, 0xdd, 0xd1, 0x85, 0x5e, 0x37, 0x19, 0xed,
+ 0xd2, 0x15, 0x8f, 0x5e, 0x91, 0xdb, 0x33, 0xf2,
+ 0xe4, 0xdb, 0xff, 0x98, 0xfb, 0xa3, 0xb5, 0xca,
+ 0x21, 0x69, 0x08, 0xe7, 0x8a, 0xdf, 0x90, 0xff,
+ 0x3e, 0xe9, 0x20, 0x86, 0x3c, 0xe9, 0xfc, 0x0b,
+ 0xfe, 0x5c, 0x61, 0xaa, 0x13, 0x92, 0x7f, 0x7b,
+ 0xec, 0xe0, 0x6d, 0xa8, 0x23, 0x22, 0xf6, 0x6b,
+ 0x77, 0xc4, 0xfe, 0x40, 0x07, 0x3b, 0xb6, 0xf6,
+ 0x8e, 0x5f, 0xd4, 0xb9, 0xb7, 0x0f, 0x21, 0x04,
+ 0xef, 0x83, 0x63, 0x91, 0x69, 0x40, 0xa3, 0x48,
+ 0x5c, 0xd2, 0x60, 0xf9, 0x4f, 0x6c, 0x47, 0x8b,
+ 0x3b, 0xb1, 0x9f, 0x8e, 0xee, 0x16, 0x8a, 0x13,
+ 0xfc, 0x46, 0x17, 0xc3, 0xc3, 0x32, 0x56, 0xf8,
+ 0x3c, 0x85, 0x3a, 0xb6, 0x3e, 0xaa, 0x89, 0x4f,
+ 0xb3, 0xdf, 0x38, 0xfd, 0xf1, 0xe4, 0x3a, 0xc0,
+ 0xe6, 0x58, 0xb5, 0x8f, 0xc5, 0x29, 0xa2, 0x92,
+ 0x4a, 0xb6, 0xa0, 0x34, 0x7f, 0xab, 0xb5, 0x8a,
+ 0x90, 0xa1, 0xdb, 0x4d, 0xca, 0xb6, 0x2c, 0x41,
+ 0x3c, 0xf7, 0x2b, 0x21, 0xc3, 0xfd, 0xf4, 0x17,
+ 0x5c, 0xb5, 0x33, 0x17, 0x68, 0x2b, 0x08, 0x30,
+ 0xf3, 0xf7, 0x30, 0x3c, 0x96, 0xe6, 0x6a, 0x20,
+ 0x97, 0xe7, 0x4d, 0x10, 0x5f, 0x47, 0x5f, 0x49,
+ 0x96, 0x09, 0xf0, 0x27, 0x91, 0xc8, 0xf8, 0x5a,
+ 0x2e, 0x79, 0xb5, 0xe2, 0xb8, 0xe8, 0xb9, 0x7b,
+ 0xd5, 0x10, 0xcb, 0xff, 0x5d, 0x14, 0x73, 0xf3
+};
+static const u8 enc_output008[] __initconst = {
+ 0x14, 0xf6, 0x41, 0x37, 0xa6, 0xd4, 0x27, 0xcd,
+ 0xdb, 0x06, 0x3e, 0x9a, 0x4e, 0xab, 0xd5, 0xb1,
+ 0x1e, 0x6b, 0xd2, 0xbc, 0x11, 0xf4, 0x28, 0x93,
+ 0x63, 0x54, 0xef, 0xbb, 0x5e, 0x1d, 0x3a, 0x1d,
+ 0x37, 0x3c, 0x0a, 0x6c, 0x1e, 0xc2, 0xd1, 0x2c,
+ 0xb5, 0xa3, 0xb5, 0x7b, 0xb8, 0x8f, 0x25, 0xa6,
+ 0x1b, 0x61, 0x1c, 0xec, 0x28, 0x58, 0x26, 0xa4,
+ 0xa8, 0x33, 0x28, 0x25, 0x5c, 0x45, 0x05, 0xe5,
+ 0x6c, 0x99, 0xe5, 0x45, 0xc4, 0xa2, 0x03, 0x84,
+ 0x03, 0x73, 0x1e, 0x8c, 0x49, 0xac, 0x20, 0xdd,
+ 0x8d, 0xb3, 0xc4, 0xf5, 0xe7, 0x4f, 0xf1, 0xed,
+ 0xa1, 0x98, 0xde, 0xa4, 0x96, 0xdd, 0x2f, 0xab,
+ 0xab, 0x97, 0xcf, 0x3e, 0xd2, 0x9e, 0xb8, 0x13,
+ 0x07, 0x28, 0x29, 0x19, 0xaf, 0xfd, 0xf2, 0x49,
+ 0x43, 0xea, 0x49, 0x26, 0x91, 0xc1, 0x07, 0xd6,
+ 0xbb, 0x81, 0x75, 0x35, 0x0d, 0x24, 0x7f, 0xc8,
+ 0xda, 0xd4, 0xb7, 0xeb, 0xe8, 0x5c, 0x09, 0xa2,
+ 0x2f, 0xdc, 0x28, 0x7d, 0x3a, 0x03, 0xfa, 0x94,
+ 0xb5, 0x1d, 0x17, 0x99, 0x36, 0xc3, 0x1c, 0x18,
+ 0x34, 0xe3, 0x9f, 0xf5, 0x55, 0x7c, 0xb0, 0x60,
+ 0x9d, 0xff, 0xac, 0xd4, 0x61, 0xf2, 0xad, 0xf8,
+ 0xce, 0xc7, 0xbe, 0x5c, 0xd2, 0x95, 0xa8, 0x4b,
+ 0x77, 0x13, 0x19, 0x59, 0x26, 0xc9, 0xb7, 0x8f,
+ 0x6a, 0xcb, 0x2d, 0x37, 0x91, 0xea, 0x92, 0x9c,
+ 0x94, 0x5b, 0xda, 0x0b, 0xce, 0xfe, 0x30, 0x20,
+ 0xf8, 0x51, 0xad, 0xf2, 0xbe, 0xe7, 0xc7, 0xff,
+ 0xb3, 0x33, 0x91, 0x6a, 0xc9, 0x1a, 0x41, 0xc9,
+ 0x0f, 0xf3, 0x10, 0x0e, 0xfd, 0x53, 0xff, 0x6c,
+ 0x16, 0x52, 0xd9, 0xf3, 0xf7, 0x98, 0x2e, 0xc9,
+ 0x07, 0x31, 0x2c, 0x0c, 0x72, 0xd7, 0xc5, 0xc6,
+ 0x08, 0x2a, 0x7b, 0xda, 0xbd, 0x7e, 0x02, 0xea,
+ 0x1a, 0xbb, 0xf2, 0x04, 0x27, 0x61, 0x28, 0x8e,
+ 0xf5, 0x04, 0x03, 0x1f, 0x4c, 0x07, 0x55, 0x82,
+ 0xec, 0x1e, 0xd7, 0x8b, 0x2f, 0x65, 0x56, 0xd1,
+ 0xd9, 0x1e, 0x3c, 0xe9, 0x1f, 0x5e, 0x98, 0x70,
+ 0x38, 0x4a, 0x8c, 0x49, 0xc5, 0x43, 0xa0, 0xa1,
+ 0x8b, 0x74, 0x9d, 0x4c, 0x62, 0x0d, 0x10, 0x0c,
+ 0xf4, 0x6c, 0x8f, 0xe0, 0xaa, 0x9a, 0x8d, 0xb7,
+ 0xe0, 0xbe, 0x4c, 0x87, 0xf1, 0x98, 0x2f, 0xcc,
+ 0xed, 0xc0, 0x52, 0x29, 0xdc, 0x83, 0xf8, 0xfc,
+ 0x2c, 0x0e, 0xa8, 0x51, 0x4d, 0x80, 0x0d, 0xa3,
+ 0xfe, 0xd8, 0x37, 0xe7, 0x41, 0x24, 0xfc, 0xfb,
+ 0x75, 0xe3, 0x71, 0x7b, 0x57, 0x45, 0xf5, 0x97,
+ 0x73, 0x65, 0x63, 0x14, 0x74, 0xb8, 0x82, 0x9f,
+ 0xf8, 0x60, 0x2f, 0x8a, 0xf2, 0x4e, 0xf1, 0x39,
+ 0xda, 0x33, 0x91, 0xf8, 0x36, 0xe0, 0x8d, 0x3f,
+ 0x1f, 0x3b, 0x56, 0xdc, 0xa0, 0x8f, 0x3c, 0x9d,
+ 0x71, 0x52, 0xa7, 0xb8, 0xc0, 0xa5, 0xc6, 0xa2,
+ 0x73, 0xda, 0xf4, 0x4b, 0x74, 0x5b, 0x00, 0x3d,
+ 0x99, 0xd7, 0x96, 0xba, 0xe6, 0xe1, 0xa6, 0x96,
+ 0x38, 0xad, 0xb3, 0xc0, 0xd2, 0xba, 0x91, 0x6b,
+ 0xf9, 0x19, 0xdd, 0x3b, 0xbe, 0xbe, 0x9c, 0x20,
+ 0x50, 0xba, 0xa1, 0xd0, 0xce, 0x11, 0xbd, 0x95,
+ 0xd8, 0xd1, 0xdd, 0x33, 0x85, 0x74, 0xdc, 0xdb,
+ 0x66, 0x76, 0x44, 0xdc, 0x03, 0x74, 0x48, 0x35,
+ 0x98, 0xb1, 0x18, 0x47, 0x94, 0x7d, 0xff, 0x62,
+ 0xe4, 0x58, 0x78, 0xab, 0xed, 0x95, 0x36, 0xd9,
+ 0x84, 0x91, 0x82, 0x64, 0x41, 0xbb, 0x58, 0xe6,
+ 0x1c, 0x20, 0x6d, 0x15, 0x6b, 0x13, 0x96, 0xe8,
+ 0x35, 0x7f, 0xdc, 0x40, 0x2c, 0xe9, 0xbc, 0x8a,
+ 0x4f, 0x92, 0xec, 0x06, 0x2d, 0x50, 0xdf, 0x93,
+ 0x5d, 0x65, 0x5a, 0xa8, 0xfc, 0x20, 0x50, 0x14,
+ 0xa9, 0x8a, 0x7e, 0x1d, 0x08, 0x1f, 0xe2, 0x99,
+ 0xd0, 0xbe, 0xfb, 0x3a, 0x21, 0x9d, 0xad, 0x86,
+ 0x54, 0xfd, 0x0d, 0x98, 0x1c, 0x5a, 0x6f, 0x1f,
+ 0x9a, 0x40, 0xcd, 0xa2, 0xff, 0x6a, 0xf1, 0x54
+};
+static const u8 enc_assoc008[] __initconst = { };
+static const u8 enc_nonce008[] __initconst = {
+ 0x0e, 0x0d, 0x57, 0xbb, 0x7b, 0x40, 0x54, 0x02
+};
+static const u8 enc_key008[] __initconst = {
+ 0xf2, 0xaa, 0x4f, 0x99, 0xfd, 0x3e, 0xa8, 0x53,
+ 0xc1, 0x44, 0xe9, 0x81, 0x18, 0xdc, 0xf5, 0xf0,
+ 0x3e, 0x44, 0x15, 0x59, 0xe0, 0xc5, 0x44, 0x86,
+ 0xc3, 0x91, 0xa8, 0x75, 0xc0, 0x12, 0x46, 0xba
+};
+
+static const u8 enc_input009[] __initconst = {
+ 0xe6, 0xc3, 0xdb, 0x63, 0x55, 0x15, 0xe3, 0x5b,
+ 0xb7, 0x4b, 0x27, 0x8b, 0x5a, 0xdd, 0xc2, 0xe8,
+ 0x3a, 0x6b, 0xd7, 0x81, 0x96, 0x35, 0x97, 0xca,
+ 0xd7, 0x68, 0xe8, 0xef, 0xce, 0xab, 0xda, 0x09,
+ 0x6e, 0xd6, 0x8e, 0xcb, 0x55, 0xb5, 0xe1, 0xe5,
+ 0x57, 0xfd, 0xc4, 0xe3, 0xe0, 0x18, 0x4f, 0x85,
+ 0xf5, 0x3f, 0x7e, 0x4b, 0x88, 0xc9, 0x52, 0x44,
+ 0x0f, 0xea, 0xaf, 0x1f, 0x71, 0x48, 0x9f, 0x97,
+ 0x6d, 0xb9, 0x6f, 0x00, 0xa6, 0xde, 0x2b, 0x77,
+ 0x8b, 0x15, 0xad, 0x10, 0xa0, 0x2b, 0x7b, 0x41,
+ 0x90, 0x03, 0x2d, 0x69, 0xae, 0xcc, 0x77, 0x7c,
+ 0xa5, 0x9d, 0x29, 0x22, 0xc2, 0xea, 0xb4, 0x00,
+ 0x1a, 0xd2, 0x7a, 0x98, 0x8a, 0xf9, 0xf7, 0x82,
+ 0xb0, 0xab, 0xd8, 0xa6, 0x94, 0x8d, 0x58, 0x2f,
+ 0x01, 0x9e, 0x00, 0x20, 0xfc, 0x49, 0xdc, 0x0e,
+ 0x03, 0xe8, 0x45, 0x10, 0xd6, 0xa8, 0xda, 0x55,
+ 0x10, 0x9a, 0xdf, 0x67, 0x22, 0x8b, 0x43, 0xab,
+ 0x00, 0xbb, 0x02, 0xc8, 0xdd, 0x7b, 0x97, 0x17,
+ 0xd7, 0x1d, 0x9e, 0x02, 0x5e, 0x48, 0xde, 0x8e,
+ 0xcf, 0x99, 0x07, 0x95, 0x92, 0x3c, 0x5f, 0x9f,
+ 0xc5, 0x8a, 0xc0, 0x23, 0xaa, 0xd5, 0x8c, 0x82,
+ 0x6e, 0x16, 0x92, 0xb1, 0x12, 0x17, 0x07, 0xc3,
+ 0xfb, 0x36, 0xf5, 0x6c, 0x35, 0xd6, 0x06, 0x1f,
+ 0x9f, 0xa7, 0x94, 0xa2, 0x38, 0x63, 0x9c, 0xb0,
+ 0x71, 0xb3, 0xa5, 0xd2, 0xd8, 0xba, 0x9f, 0x08,
+ 0x01, 0xb3, 0xff, 0x04, 0x97, 0x73, 0x45, 0x1b,
+ 0xd5, 0xa9, 0x9c, 0x80, 0xaf, 0x04, 0x9a, 0x85,
+ 0xdb, 0x32, 0x5b, 0x5d, 0x1a, 0xc1, 0x36, 0x28,
+ 0x10, 0x79, 0xf1, 0x3c, 0xbf, 0x1a, 0x41, 0x5c,
+ 0x4e, 0xdf, 0xb2, 0x7c, 0x79, 0x3b, 0x7a, 0x62,
+ 0x3d, 0x4b, 0xc9, 0x9b, 0x2a, 0x2e, 0x7c, 0xa2,
+ 0xb1, 0x11, 0x98, 0xa7, 0x34, 0x1a, 0x00, 0xf3,
+ 0xd1, 0xbc, 0x18, 0x22, 0xba, 0x02, 0x56, 0x62,
+ 0x31, 0x10, 0x11, 0x6d, 0xe0, 0x54, 0x9d, 0x40,
+ 0x1f, 0x26, 0x80, 0x41, 0xca, 0x3f, 0x68, 0x0f,
+ 0x32, 0x1d, 0x0a, 0x8e, 0x79, 0xd8, 0xa4, 0x1b,
+ 0x29, 0x1c, 0x90, 0x8e, 0xc5, 0xe3, 0xb4, 0x91,
+ 0x37, 0x9a, 0x97, 0x86, 0x99, 0xd5, 0x09, 0xc5,
+ 0xbb, 0xa3, 0x3f, 0x21, 0x29, 0x82, 0x14, 0x5c,
+ 0xab, 0x25, 0xfb, 0xf2, 0x4f, 0x58, 0x26, 0xd4,
+ 0x83, 0xaa, 0x66, 0x89, 0x67, 0x7e, 0xc0, 0x49,
+ 0xe1, 0x11, 0x10, 0x7f, 0x7a, 0xda, 0x29, 0x04,
+ 0xff, 0xf0, 0xcb, 0x09, 0x7c, 0x9d, 0xfa, 0x03,
+ 0x6f, 0x81, 0x09, 0x31, 0x60, 0xfb, 0x08, 0xfa,
+ 0x74, 0xd3, 0x64, 0x44, 0x7c, 0x55, 0x85, 0xec,
+ 0x9c, 0x6e, 0x25, 0xb7, 0x6c, 0xc5, 0x37, 0xb6,
+ 0x83, 0x87, 0x72, 0x95, 0x8b, 0x9d, 0xe1, 0x69,
+ 0x5c, 0x31, 0x95, 0x42, 0xa6, 0x2c, 0xd1, 0x36,
+ 0x47, 0x1f, 0xec, 0x54, 0xab, 0xa2, 0x1c, 0xd8,
+ 0x00, 0xcc, 0xbc, 0x0d, 0x65, 0xe2, 0x67, 0xbf,
+ 0xbc, 0xea, 0xee, 0x9e, 0xe4, 0x36, 0x95, 0xbe,
+ 0x73, 0xd9, 0xa6, 0xd9, 0x0f, 0xa0, 0xcc, 0x82,
+ 0x76, 0x26, 0xad, 0x5b, 0x58, 0x6c, 0x4e, 0xab,
+ 0x29, 0x64, 0xd3, 0xd9, 0xa9, 0x08, 0x8c, 0x1d,
+ 0xa1, 0x4f, 0x80, 0xd8, 0x3f, 0x94, 0xfb, 0xd3,
+ 0x7b, 0xfc, 0xd1, 0x2b, 0xc3, 0x21, 0xeb, 0xe5,
+ 0x1c, 0x84, 0x23, 0x7f, 0x4b, 0xfa, 0xdb, 0x34,
+ 0x18, 0xa2, 0xc2, 0xe5, 0x13, 0xfe, 0x6c, 0x49,
+ 0x81, 0xd2, 0x73, 0xe7, 0xe2, 0xd7, 0xe4, 0x4f,
+ 0x4b, 0x08, 0x6e, 0xb1, 0x12, 0x22, 0x10, 0x9d,
+ 0xac, 0x51, 0x1e, 0x17, 0xd9, 0x8a, 0x0b, 0x42,
+ 0x88, 0x16, 0x81, 0x37, 0x7c, 0x6a, 0xf7, 0xef,
+ 0x2d, 0xe3, 0xd9, 0xf8, 0x5f, 0xe0, 0x53, 0x27,
+ 0x74, 0xb9, 0xe2, 0xd6, 0x1c, 0x80, 0x2c, 0x52,
+ 0x65
+};
+static const u8 enc_output009[] __initconst = {
+ 0xfd, 0x81, 0x8d, 0xd0, 0x3d, 0xb4, 0xd5, 0xdf,
+ 0xd3, 0x42, 0x47, 0x5a, 0x6d, 0x19, 0x27, 0x66,
+ 0x4b, 0x2e, 0x0c, 0x27, 0x9c, 0x96, 0x4c, 0x72,
+ 0x02, 0xa3, 0x65, 0xc3, 0xb3, 0x6f, 0x2e, 0xbd,
+ 0x63, 0x8a, 0x4a, 0x5d, 0x29, 0xa2, 0xd0, 0x28,
+ 0x48, 0xc5, 0x3d, 0x98, 0xa3, 0xbc, 0xe0, 0xbe,
+ 0x3b, 0x3f, 0xe6, 0x8a, 0xa4, 0x7f, 0x53, 0x06,
+ 0xfa, 0x7f, 0x27, 0x76, 0x72, 0x31, 0xa1, 0xf5,
+ 0xd6, 0x0c, 0x52, 0x47, 0xba, 0xcd, 0x4f, 0xd7,
+ 0xeb, 0x05, 0x48, 0x0d, 0x7c, 0x35, 0x4a, 0x09,
+ 0xc9, 0x76, 0x71, 0x02, 0xa3, 0xfb, 0xb7, 0x1a,
+ 0x65, 0xb7, 0xed, 0x98, 0xc6, 0x30, 0x8a, 0x00,
+ 0xae, 0xa1, 0x31, 0xe5, 0xb5, 0x9e, 0x6d, 0x62,
+ 0xda, 0xda, 0x07, 0x0f, 0x38, 0x38, 0xd3, 0xcb,
+ 0xc1, 0xb0, 0xad, 0xec, 0x72, 0xec, 0xb1, 0xa2,
+ 0x7b, 0x59, 0xf3, 0x3d, 0x2b, 0xef, 0xcd, 0x28,
+ 0x5b, 0x83, 0xcc, 0x18, 0x91, 0x88, 0xb0, 0x2e,
+ 0xf9, 0x29, 0x31, 0x18, 0xf9, 0x4e, 0xe9, 0x0a,
+ 0x91, 0x92, 0x9f, 0xae, 0x2d, 0xad, 0xf4, 0xe6,
+ 0x1a, 0xe2, 0xa4, 0xee, 0x47, 0x15, 0xbf, 0x83,
+ 0x6e, 0xd7, 0x72, 0x12, 0x3b, 0x2d, 0x24, 0xe9,
+ 0xb2, 0x55, 0xcb, 0x3c, 0x10, 0xf0, 0x24, 0x8a,
+ 0x4a, 0x02, 0xea, 0x90, 0x25, 0xf0, 0xb4, 0x79,
+ 0x3a, 0xef, 0x6e, 0xf5, 0x52, 0xdf, 0xb0, 0x0a,
+ 0xcd, 0x24, 0x1c, 0xd3, 0x2e, 0x22, 0x74, 0xea,
+ 0x21, 0x6f, 0xe9, 0xbd, 0xc8, 0x3e, 0x36, 0x5b,
+ 0x19, 0xf1, 0xca, 0x99, 0x0a, 0xb4, 0xa7, 0x52,
+ 0x1a, 0x4e, 0xf2, 0xad, 0x8d, 0x56, 0x85, 0xbb,
+ 0x64, 0x89, 0xba, 0x26, 0xf9, 0xc7, 0xe1, 0x89,
+ 0x19, 0x22, 0x77, 0xc3, 0xa8, 0xfc, 0xff, 0xad,
+ 0xfe, 0xb9, 0x48, 0xae, 0x12, 0x30, 0x9f, 0x19,
+ 0xfb, 0x1b, 0xef, 0x14, 0x87, 0x8a, 0x78, 0x71,
+ 0xf3, 0xf4, 0xb7, 0x00, 0x9c, 0x1d, 0xb5, 0x3d,
+ 0x49, 0x00, 0x0c, 0x06, 0xd4, 0x50, 0xf9, 0x54,
+ 0x45, 0xb2, 0x5b, 0x43, 0xdb, 0x6d, 0xcf, 0x1a,
+ 0xe9, 0x7a, 0x7a, 0xcf, 0xfc, 0x8a, 0x4e, 0x4d,
+ 0x0b, 0x07, 0x63, 0x28, 0xd8, 0xe7, 0x08, 0x95,
+ 0xdf, 0xa6, 0x72, 0x93, 0x2e, 0xbb, 0xa0, 0x42,
+ 0x89, 0x16, 0xf1, 0xd9, 0x0c, 0xf9, 0xa1, 0x16,
+ 0xfd, 0xd9, 0x03, 0xb4, 0x3b, 0x8a, 0xf5, 0xf6,
+ 0xe7, 0x6b, 0x2e, 0x8e, 0x4c, 0x3d, 0xe2, 0xaf,
+ 0x08, 0x45, 0x03, 0xff, 0x09, 0xb6, 0xeb, 0x2d,
+ 0xc6, 0x1b, 0x88, 0x94, 0xac, 0x3e, 0xf1, 0x9f,
+ 0x0e, 0x0e, 0x2b, 0xd5, 0x00, 0x4d, 0x3f, 0x3b,
+ 0x53, 0xae, 0xaf, 0x1c, 0x33, 0x5f, 0x55, 0x6e,
+ 0x8d, 0xaf, 0x05, 0x7a, 0x10, 0x34, 0xc9, 0xf4,
+ 0x66, 0xcb, 0x62, 0x12, 0xa6, 0xee, 0xe8, 0x1c,
+ 0x5d, 0x12, 0x86, 0xdb, 0x6f, 0x1c, 0x33, 0xc4,
+ 0x1c, 0xda, 0x82, 0x2d, 0x3b, 0x59, 0xfe, 0xb1,
+ 0xa4, 0x59, 0x41, 0x86, 0xd0, 0xef, 0xae, 0xfb,
+ 0xda, 0x6d, 0x11, 0xb8, 0xca, 0xe9, 0x6e, 0xff,
+ 0xf7, 0xa9, 0xd9, 0x70, 0x30, 0xfc, 0x53, 0xe2,
+ 0xd7, 0xa2, 0x4e, 0xc7, 0x91, 0xd9, 0x07, 0x06,
+ 0xaa, 0xdd, 0xb0, 0x59, 0x28, 0x1d, 0x00, 0x66,
+ 0xc5, 0x54, 0xc2, 0xfc, 0x06, 0xda, 0x05, 0x90,
+ 0x52, 0x1d, 0x37, 0x66, 0xee, 0xf0, 0xb2, 0x55,
+ 0x8a, 0x5d, 0xd2, 0x38, 0x86, 0x94, 0x9b, 0xfc,
+ 0x10, 0x4c, 0xa1, 0xb9, 0x64, 0x3e, 0x44, 0xb8,
+ 0x5f, 0xb0, 0x0c, 0xec, 0xe0, 0xc9, 0xe5, 0x62,
+ 0x75, 0x3f, 0x09, 0xd5, 0xf5, 0xd9, 0x26, 0xba,
+ 0x9e, 0xd2, 0xf4, 0xb9, 0x48, 0x0a, 0xbc, 0xa2,
+ 0xd6, 0x7c, 0x36, 0x11, 0x7d, 0x26, 0x81, 0x89,
+ 0xcf, 0xa4, 0xad, 0x73, 0x0e, 0xee, 0xcc, 0x06,
+ 0xa9, 0xdb, 0xb1, 0xfd, 0xfb, 0x09, 0x7f, 0x90,
+ 0x42, 0x37, 0x2f, 0xe1, 0x9c, 0x0f, 0x6f, 0xcf,
+ 0x43, 0xb5, 0xd9, 0x90, 0xe1, 0x85, 0xf5, 0xa8,
+ 0xae
+};
+static const u8 enc_assoc009[] __initconst = {
+ 0x5a, 0x27, 0xff, 0xeb, 0xdf, 0x84, 0xb2, 0x9e,
+ 0xef
+};
+static const u8 enc_nonce009[] __initconst = {
+ 0xef, 0x2d, 0x63, 0xee, 0x6b, 0x80, 0x8b, 0x78
+};
+static const u8 enc_key009[] __initconst = {
+ 0xea, 0xbc, 0x56, 0x99, 0xe3, 0x50, 0xff, 0xc5,
+ 0xcc, 0x1a, 0xd7, 0xc1, 0x57, 0x72, 0xea, 0x86,
+ 0x5b, 0x89, 0x88, 0x61, 0x3d, 0x2f, 0x9b, 0xb2,
+ 0xe7, 0x9c, 0xec, 0x74, 0x6e, 0x3e, 0xf4, 0x3b
+};
+
+static const u8 enc_input010[] __initconst = {
+ 0x42, 0x93, 0xe4, 0xeb, 0x97, 0xb0, 0x57, 0xbf,
+ 0x1a, 0x8b, 0x1f, 0xe4, 0x5f, 0x36, 0x20, 0x3c,
+ 0xef, 0x0a, 0xa9, 0x48, 0x5f, 0x5f, 0x37, 0x22,
+ 0x3a, 0xde, 0xe3, 0xae, 0xbe, 0xad, 0x07, 0xcc,
+ 0xb1, 0xf6, 0xf5, 0xf9, 0x56, 0xdd, 0xe7, 0x16,
+ 0x1e, 0x7f, 0xdf, 0x7a, 0x9e, 0x75, 0xb7, 0xc7,
+ 0xbe, 0xbe, 0x8a, 0x36, 0x04, 0xc0, 0x10, 0xf4,
+ 0x95, 0x20, 0x03, 0xec, 0xdc, 0x05, 0xa1, 0x7d,
+ 0xc4, 0xa9, 0x2c, 0x82, 0xd0, 0xbc, 0x8b, 0xc5,
+ 0xc7, 0x45, 0x50, 0xf6, 0xa2, 0x1a, 0xb5, 0x46,
+ 0x3b, 0x73, 0x02, 0xa6, 0x83, 0x4b, 0x73, 0x82,
+ 0x58, 0x5e, 0x3b, 0x65, 0x2f, 0x0e, 0xfd, 0x2b,
+ 0x59, 0x16, 0xce, 0xa1, 0x60, 0x9c, 0xe8, 0x3a,
+ 0x99, 0xed, 0x8d, 0x5a, 0xcf, 0xf6, 0x83, 0xaf,
+ 0xba, 0xd7, 0x73, 0x73, 0x40, 0x97, 0x3d, 0xca,
+ 0xef, 0x07, 0x57, 0xe6, 0xd9, 0x70, 0x0e, 0x95,
+ 0xae, 0xa6, 0x8d, 0x04, 0xcc, 0xee, 0xf7, 0x09,
+ 0x31, 0x77, 0x12, 0xa3, 0x23, 0x97, 0x62, 0xb3,
+ 0x7b, 0x32, 0xfb, 0x80, 0x14, 0x48, 0x81, 0xc3,
+ 0xe5, 0xea, 0x91, 0x39, 0x52, 0x81, 0xa2, 0x4f,
+ 0xe4, 0xb3, 0x09, 0xff, 0xde, 0x5e, 0xe9, 0x58,
+ 0x84, 0x6e, 0xf9, 0x3d, 0xdf, 0x25, 0xea, 0xad,
+ 0xae, 0xe6, 0x9a, 0xd1, 0x89, 0x55, 0xd3, 0xde,
+ 0x6c, 0x52, 0xdb, 0x70, 0xfe, 0x37, 0xce, 0x44,
+ 0x0a, 0xa8, 0x25, 0x5f, 0x92, 0xc1, 0x33, 0x4a,
+ 0x4f, 0x9b, 0x62, 0x35, 0xff, 0xce, 0xc0, 0xa9,
+ 0x60, 0xce, 0x52, 0x00, 0x97, 0x51, 0x35, 0x26,
+ 0x2e, 0xb9, 0x36, 0xa9, 0x87, 0x6e, 0x1e, 0xcc,
+ 0x91, 0x78, 0x53, 0x98, 0x86, 0x5b, 0x9c, 0x74,
+ 0x7d, 0x88, 0x33, 0xe1, 0xdf, 0x37, 0x69, 0x2b,
+ 0xbb, 0xf1, 0x4d, 0xf4, 0xd1, 0xf1, 0x39, 0x93,
+ 0x17, 0x51, 0x19, 0xe3, 0x19, 0x1e, 0x76, 0x37,
+ 0x25, 0xfb, 0x09, 0x27, 0x6a, 0xab, 0x67, 0x6f,
+ 0x14, 0x12, 0x64, 0xe7, 0xc4, 0x07, 0xdf, 0x4d,
+ 0x17, 0xbb, 0x6d, 0xe0, 0xe9, 0xb9, 0xab, 0xca,
+ 0x10, 0x68, 0xaf, 0x7e, 0xb7, 0x33, 0x54, 0x73,
+ 0x07, 0x6e, 0xf7, 0x81, 0x97, 0x9c, 0x05, 0x6f,
+ 0x84, 0x5f, 0xd2, 0x42, 0xfb, 0x38, 0xcf, 0xd1,
+ 0x2f, 0x14, 0x30, 0x88, 0x98, 0x4d, 0x5a, 0xa9,
+ 0x76, 0xd5, 0x4f, 0x3e, 0x70, 0x6c, 0x85, 0x76,
+ 0xd7, 0x01, 0xa0, 0x1a, 0xc8, 0x4e, 0xaa, 0xac,
+ 0x78, 0xfe, 0x46, 0xde, 0x6a, 0x05, 0x46, 0xa7,
+ 0x43, 0x0c, 0xb9, 0xde, 0xb9, 0x68, 0xfb, 0xce,
+ 0x42, 0x99, 0x07, 0x4d, 0x0b, 0x3b, 0x5a, 0x30,
+ 0x35, 0xa8, 0xf9, 0x3a, 0x73, 0xef, 0x0f, 0xdb,
+ 0x1e, 0x16, 0x42, 0xc4, 0xba, 0xae, 0x58, 0xaa,
+ 0xf8, 0xe5, 0x75, 0x2f, 0x1b, 0x15, 0x5c, 0xfd,
+ 0x0a, 0x97, 0xd0, 0xe4, 0x37, 0x83, 0x61, 0x5f,
+ 0x43, 0xa6, 0xc7, 0x3f, 0x38, 0x59, 0xe6, 0xeb,
+ 0xa3, 0x90, 0xc3, 0xaa, 0xaa, 0x5a, 0xd3, 0x34,
+ 0xd4, 0x17, 0xc8, 0x65, 0x3e, 0x57, 0xbc, 0x5e,
+ 0xdd, 0x9e, 0xb7, 0xf0, 0x2e, 0x5b, 0xb2, 0x1f,
+ 0x8a, 0x08, 0x0d, 0x45, 0x91, 0x0b, 0x29, 0x53,
+ 0x4f, 0x4c, 0x5a, 0x73, 0x56, 0xfe, 0xaf, 0x41,
+ 0x01, 0x39, 0x0a, 0x24, 0x3c, 0x7e, 0xbe, 0x4e,
+ 0x53, 0xf3, 0xeb, 0x06, 0x66, 0x51, 0x28, 0x1d,
+ 0xbd, 0x41, 0x0a, 0x01, 0xab, 0x16, 0x47, 0x27,
+ 0x47, 0x47, 0xf7, 0xcb, 0x46, 0x0a, 0x70, 0x9e,
+ 0x01, 0x9c, 0x09, 0xe1, 0x2a, 0x00, 0x1a, 0xd8,
+ 0xd4, 0x79, 0x9d, 0x80, 0x15, 0x8e, 0x53, 0x2a,
+ 0x65, 0x83, 0x78, 0x3e, 0x03, 0x00, 0x07, 0x12,
+ 0x1f, 0x33, 0x3e, 0x7b, 0x13, 0x37, 0xf1, 0xc3,
+ 0xef, 0xb7, 0xc1, 0x20, 0x3c, 0x3e, 0x67, 0x66,
+ 0x5d, 0x88, 0xa7, 0x7d, 0x33, 0x50, 0x77, 0xb0,
+ 0x28, 0x8e, 0xe7, 0x2c, 0x2e, 0x7a, 0xf4, 0x3c,
+ 0x8d, 0x74, 0x83, 0xaf, 0x8e, 0x87, 0x0f, 0xe4,
+ 0x50, 0xff, 0x84, 0x5c, 0x47, 0x0c, 0x6a, 0x49,
+ 0xbf, 0x42, 0x86, 0x77, 0x15, 0x48, 0xa5, 0x90,
+ 0x5d, 0x93, 0xd6, 0x2a, 0x11, 0xd5, 0xd5, 0x11,
+ 0xaa, 0xce, 0xe7, 0x6f, 0xa5, 0xb0, 0x09, 0x2c,
+ 0x8d, 0xd3, 0x92, 0xf0, 0x5a, 0x2a, 0xda, 0x5b,
+ 0x1e, 0xd5, 0x9a, 0xc4, 0xc4, 0xf3, 0x49, 0x74,
+ 0x41, 0xca, 0xe8, 0xc1, 0xf8, 0x44, 0xd6, 0x3c,
+ 0xae, 0x6c, 0x1d, 0x9a, 0x30, 0x04, 0x4d, 0x27,
+ 0x0e, 0xb1, 0x5f, 0x59, 0xa2, 0x24, 0xe8, 0xe1,
+ 0x98, 0xc5, 0x6a, 0x4c, 0xfe, 0x41, 0xd2, 0x27,
+ 0x42, 0x52, 0xe1, 0xe9, 0x7d, 0x62, 0xe4, 0x88,
+ 0x0f, 0xad, 0xb2, 0x70, 0xcb, 0x9d, 0x4c, 0x27,
+ 0x2e, 0x76, 0x1e, 0x1a, 0x63, 0x65, 0xf5, 0x3b,
+ 0xf8, 0x57, 0x69, 0xeb, 0x5b, 0x38, 0x26, 0x39,
+ 0x33, 0x25, 0x45, 0x3e, 0x91, 0xb8, 0xd8, 0xc7,
+ 0xd5, 0x42, 0xc0, 0x22, 0x31, 0x74, 0xf4, 0xbc,
+ 0x0c, 0x23, 0xf1, 0xca, 0xc1, 0x8d, 0xd7, 0xbe,
+ 0xc9, 0x62, 0xe4, 0x08, 0x1a, 0xcf, 0x36, 0xd5,
+ 0xfe, 0x55, 0x21, 0x59, 0x91, 0x87, 0x87, 0xdf,
+ 0x06, 0xdb, 0xdf, 0x96, 0x45, 0x58, 0xda, 0x05,
+ 0xcd, 0x50, 0x4d, 0xd2, 0x7d, 0x05, 0x18, 0x73,
+ 0x6a, 0x8d, 0x11, 0x85, 0xa6, 0x88, 0xe8, 0xda,
+ 0xe6, 0x30, 0x33, 0xa4, 0x89, 0x31, 0x75, 0xbe,
+ 0x69, 0x43, 0x84, 0x43, 0x50, 0x87, 0xdd, 0x71,
+ 0x36, 0x83, 0xc3, 0x78, 0x74, 0x24, 0x0a, 0xed,
+ 0x7b, 0xdb, 0xa4, 0x24, 0x0b, 0xb9, 0x7e, 0x5d,
+ 0xff, 0xde, 0xb1, 0xef, 0x61, 0x5a, 0x45, 0x33,
+ 0xf6, 0x17, 0x07, 0x08, 0x98, 0x83, 0x92, 0x0f,
+ 0x23, 0x6d, 0xe6, 0xaa, 0x17, 0x54, 0xad, 0x6a,
+ 0xc8, 0xdb, 0x26, 0xbe, 0xb8, 0xb6, 0x08, 0xfa,
+ 0x68, 0xf1, 0xd7, 0x79, 0x6f, 0x18, 0xb4, 0x9e,
+ 0x2d, 0x3f, 0x1b, 0x64, 0xaf, 0x8d, 0x06, 0x0e,
+ 0x49, 0x28, 0xe0, 0x5d, 0x45, 0x68, 0x13, 0x87,
+ 0xfa, 0xde, 0x40, 0x7b, 0xd2, 0xc3, 0x94, 0xd5,
+ 0xe1, 0xd9, 0xc2, 0xaf, 0x55, 0x89, 0xeb, 0xb4,
+ 0x12, 0x59, 0xa8, 0xd4, 0xc5, 0x29, 0x66, 0x38,
+ 0xe6, 0xac, 0x22, 0x22, 0xd9, 0x64, 0x9b, 0x34,
+ 0x0a, 0x32, 0x9f, 0xc2, 0xbf, 0x17, 0x6c, 0x3f,
+ 0x71, 0x7a, 0x38, 0x6b, 0x98, 0xfb, 0x49, 0x36,
+ 0x89, 0xc9, 0xe2, 0xd6, 0xc7, 0x5d, 0xd0, 0x69,
+ 0x5f, 0x23, 0x35, 0xc9, 0x30, 0xe2, 0xfd, 0x44,
+ 0x58, 0x39, 0xd7, 0x97, 0xfb, 0x5c, 0x00, 0xd5,
+ 0x4f, 0x7a, 0x1a, 0x95, 0x8b, 0x62, 0x4b, 0xce,
+ 0xe5, 0x91, 0x21, 0x7b, 0x30, 0x00, 0xd6, 0xdd,
+ 0x6d, 0x02, 0x86, 0x49, 0x0f, 0x3c, 0x1a, 0x27,
+ 0x3c, 0xd3, 0x0e, 0x71, 0xf2, 0xff, 0xf5, 0x2f,
+ 0x87, 0xac, 0x67, 0x59, 0x81, 0xa3, 0xf7, 0xf8,
+ 0xd6, 0x11, 0x0c, 0x84, 0xa9, 0x03, 0xee, 0x2a,
+ 0xc4, 0xf3, 0x22, 0xab, 0x7c, 0xe2, 0x25, 0xf5,
+ 0x67, 0xa3, 0xe4, 0x11, 0xe0, 0x59, 0xb3, 0xca,
+ 0x87, 0xa0, 0xae, 0xc9, 0xa6, 0x62, 0x1b, 0x6e,
+ 0x4d, 0x02, 0x6b, 0x07, 0x9d, 0xfd, 0xd0, 0x92,
+ 0x06, 0xe1, 0xb2, 0x9a, 0x4a, 0x1f, 0x1f, 0x13,
+ 0x49, 0x99, 0x97, 0x08, 0xde, 0x7f, 0x98, 0xaf,
+ 0x51, 0x98, 0xee, 0x2c, 0xcb, 0xf0, 0x0b, 0xc6,
+ 0xb6, 0xb7, 0x2d, 0x9a, 0xb1, 0xac, 0xa6, 0xe3,
+ 0x15, 0x77, 0x9d, 0x6b, 0x1a, 0xe4, 0xfc, 0x8b,
+ 0xf2, 0x17, 0x59, 0x08, 0x04, 0x58, 0x81, 0x9d,
+ 0x1b, 0x1b, 0x69, 0x55, 0xc2, 0xb4, 0x3c, 0x1f,
+ 0x50, 0xf1, 0x7f, 0x77, 0x90, 0x4c, 0x66, 0x40,
+ 0x5a, 0xc0, 0x33, 0x1f, 0xcb, 0x05, 0x6d, 0x5c,
+ 0x06, 0x87, 0x52, 0xa2, 0x8f, 0x26, 0xd5, 0x4f
+};
+static const u8 enc_output010[] __initconst = {
+ 0xe5, 0x26, 0xa4, 0x3d, 0xbd, 0x33, 0xd0, 0x4b,
+ 0x6f, 0x05, 0xa7, 0x6e, 0x12, 0x7a, 0xd2, 0x74,
+ 0xa6, 0xdd, 0xbd, 0x95, 0xeb, 0xf9, 0xa4, 0xf1,
+ 0x59, 0x93, 0x91, 0x70, 0xd9, 0xfe, 0x9a, 0xcd,
+ 0x53, 0x1f, 0x3a, 0xab, 0xa6, 0x7c, 0x9f, 0xa6,
+ 0x9e, 0xbd, 0x99, 0xd9, 0xb5, 0x97, 0x44, 0xd5,
+ 0x14, 0x48, 0x4d, 0x9d, 0xc0, 0xd0, 0x05, 0x96,
+ 0xeb, 0x4c, 0x78, 0x55, 0x09, 0x08, 0x01, 0x02,
+ 0x30, 0x90, 0x7b, 0x96, 0x7a, 0x7b, 0x5f, 0x30,
+ 0x41, 0x24, 0xce, 0x68, 0x61, 0x49, 0x86, 0x57,
+ 0x82, 0xdd, 0x53, 0x1c, 0x51, 0x28, 0x2b, 0x53,
+ 0x6e, 0x2d, 0xc2, 0x20, 0x4c, 0xdd, 0x8f, 0x65,
+ 0x10, 0x20, 0x50, 0xdd, 0x9d, 0x50, 0xe5, 0x71,
+ 0x40, 0x53, 0x69, 0xfc, 0x77, 0x48, 0x11, 0xb9,
+ 0xde, 0xa4, 0x8d, 0x58, 0xe4, 0xa6, 0x1a, 0x18,
+ 0x47, 0x81, 0x7e, 0xfc, 0xdd, 0xf6, 0xef, 0xce,
+ 0x2f, 0x43, 0x68, 0xd6, 0x06, 0xe2, 0x74, 0x6a,
+ 0xad, 0x90, 0xf5, 0x37, 0xf3, 0x3d, 0x82, 0x69,
+ 0x40, 0xe9, 0x6b, 0xa7, 0x3d, 0xa8, 0x1e, 0xd2,
+ 0x02, 0x7c, 0xb7, 0x9b, 0xe4, 0xda, 0x8f, 0x95,
+ 0x06, 0xc5, 0xdf, 0x73, 0xa3, 0x20, 0x9a, 0x49,
+ 0xde, 0x9c, 0xbc, 0xee, 0x14, 0x3f, 0x81, 0x5e,
+ 0xf8, 0x3b, 0x59, 0x3c, 0xe1, 0x68, 0x12, 0x5a,
+ 0x3a, 0x76, 0x3a, 0x3f, 0xf7, 0x87, 0x33, 0x0a,
+ 0x01, 0xb8, 0xd4, 0xed, 0xb6, 0xbe, 0x94, 0x5e,
+ 0x70, 0x40, 0x56, 0x67, 0x1f, 0x50, 0x44, 0x19,
+ 0xce, 0x82, 0x70, 0x10, 0x87, 0x13, 0x20, 0x0b,
+ 0x4c, 0x5a, 0xb6, 0xf6, 0xa7, 0xae, 0x81, 0x75,
+ 0x01, 0x81, 0xe6, 0x4b, 0x57, 0x7c, 0xdd, 0x6d,
+ 0xf8, 0x1c, 0x29, 0x32, 0xf7, 0xda, 0x3c, 0x2d,
+ 0xf8, 0x9b, 0x25, 0x6e, 0x00, 0xb4, 0xf7, 0x2f,
+ 0xf7, 0x04, 0xf7, 0xa1, 0x56, 0xac, 0x4f, 0x1a,
+ 0x64, 0xb8, 0x47, 0x55, 0x18, 0x7b, 0x07, 0x4d,
+ 0xbd, 0x47, 0x24, 0x80, 0x5d, 0xa2, 0x70, 0xc5,
+ 0xdd, 0x8e, 0x82, 0xd4, 0xeb, 0xec, 0xb2, 0x0c,
+ 0x39, 0xd2, 0x97, 0xc1, 0xcb, 0xeb, 0xf4, 0x77,
+ 0x59, 0xb4, 0x87, 0xef, 0xcb, 0x43, 0x2d, 0x46,
+ 0x54, 0xd1, 0xa7, 0xd7, 0x15, 0x99, 0x0a, 0x43,
+ 0xa1, 0xe0, 0x99, 0x33, 0x71, 0xc1, 0xed, 0xfe,
+ 0x72, 0x46, 0x33, 0x8e, 0x91, 0x08, 0x9f, 0xc8,
+ 0x2e, 0xca, 0xfa, 0xdc, 0x59, 0xd5, 0xc3, 0x76,
+ 0x84, 0x9f, 0xa3, 0x37, 0x68, 0xc3, 0xf0, 0x47,
+ 0x2c, 0x68, 0xdb, 0x5e, 0xc3, 0x49, 0x4c, 0xe8,
+ 0x92, 0x85, 0xe2, 0x23, 0xd3, 0x3f, 0xad, 0x32,
+ 0xe5, 0x2b, 0x82, 0xd7, 0x8f, 0x99, 0x0a, 0x59,
+ 0x5c, 0x45, 0xd9, 0xb4, 0x51, 0x52, 0xc2, 0xae,
+ 0xbf, 0x80, 0xcf, 0xc9, 0xc9, 0x51, 0x24, 0x2a,
+ 0x3b, 0x3a, 0x4d, 0xae, 0xeb, 0xbd, 0x22, 0xc3,
+ 0x0e, 0x0f, 0x59, 0x25, 0x92, 0x17, 0xe9, 0x74,
+ 0xc7, 0x8b, 0x70, 0x70, 0x36, 0x55, 0x95, 0x75,
+ 0x4b, 0xad, 0x61, 0x2b, 0x09, 0xbc, 0x82, 0xf2,
+ 0x6e, 0x94, 0x43, 0xae, 0xc3, 0xd5, 0xcd, 0x8e,
+ 0xfe, 0x5b, 0x9a, 0x88, 0x43, 0x01, 0x75, 0xb2,
+ 0x23, 0x09, 0xf7, 0x89, 0x83, 0xe7, 0xfa, 0xf9,
+ 0xb4, 0x9b, 0xf8, 0xef, 0xbd, 0x1c, 0x92, 0xc1,
+ 0xda, 0x7e, 0xfe, 0x05, 0xba, 0x5a, 0xcd, 0x07,
+ 0x6a, 0x78, 0x9e, 0x5d, 0xfb, 0x11, 0x2f, 0x79,
+ 0x38, 0xb6, 0xc2, 0x5b, 0x6b, 0x51, 0xb4, 0x71,
+ 0xdd, 0xf7, 0x2a, 0xe4, 0xf4, 0x72, 0x76, 0xad,
+ 0xc2, 0xdd, 0x64, 0x5d, 0x79, 0xb6, 0xf5, 0x7a,
+ 0x77, 0x20, 0x05, 0x3d, 0x30, 0x06, 0xd4, 0x4c,
+ 0x0a, 0x2c, 0x98, 0x5a, 0xb9, 0xd4, 0x98, 0xa9,
+ 0x3f, 0xc6, 0x12, 0xea, 0x3b, 0x4b, 0xc5, 0x79,
+ 0x64, 0x63, 0x6b, 0x09, 0x54, 0x3b, 0x14, 0x27,
+ 0xba, 0x99, 0x80, 0xc8, 0x72, 0xa8, 0x12, 0x90,
+ 0x29, 0xba, 0x40, 0x54, 0x97, 0x2b, 0x7b, 0xfe,
+ 0xeb, 0xcd, 0x01, 0x05, 0x44, 0x72, 0xdb, 0x99,
+ 0xe4, 0x61, 0xc9, 0x69, 0xd6, 0xb9, 0x28, 0xd1,
+ 0x05, 0x3e, 0xf9, 0x0b, 0x49, 0x0a, 0x49, 0xe9,
+ 0x8d, 0x0e, 0xa7, 0x4a, 0x0f, 0xaf, 0x32, 0xd0,
+ 0xe0, 0xb2, 0x3a, 0x55, 0x58, 0xfe, 0x5c, 0x28,
+ 0x70, 0x51, 0x23, 0xb0, 0x7b, 0x6a, 0x5f, 0x1e,
+ 0xb8, 0x17, 0xd7, 0x94, 0x15, 0x8f, 0xee, 0x20,
+ 0xc7, 0x42, 0x25, 0x3e, 0x9a, 0x14, 0xd7, 0x60,
+ 0x72, 0x39, 0x47, 0x48, 0xa9, 0xfe, 0xdd, 0x47,
+ 0x0a, 0xb1, 0xe6, 0x60, 0x28, 0x8c, 0x11, 0x68,
+ 0xe1, 0xff, 0xd7, 0xce, 0xc8, 0xbe, 0xb3, 0xfe,
+ 0x27, 0x30, 0x09, 0x70, 0xd7, 0xfa, 0x02, 0x33,
+ 0x3a, 0x61, 0x2e, 0xc7, 0xff, 0xa4, 0x2a, 0xa8,
+ 0x6e, 0xb4, 0x79, 0x35, 0x6d, 0x4c, 0x1e, 0x38,
+ 0xf8, 0xee, 0xd4, 0x84, 0x4e, 0x6e, 0x28, 0xa7,
+ 0xce, 0xc8, 0xc1, 0xcf, 0x80, 0x05, 0xf3, 0x04,
+ 0xef, 0xc8, 0x18, 0x28, 0x2e, 0x8d, 0x5e, 0x0c,
+ 0xdf, 0xb8, 0x5f, 0x96, 0xe8, 0xc6, 0x9c, 0x2f,
+ 0xe5, 0xa6, 0x44, 0xd7, 0xe7, 0x99, 0x44, 0x0c,
+ 0xec, 0xd7, 0x05, 0x60, 0x97, 0xbb, 0x74, 0x77,
+ 0x58, 0xd5, 0xbb, 0x48, 0xde, 0x5a, 0xb2, 0x54,
+ 0x7f, 0x0e, 0x46, 0x70, 0x6a, 0x6f, 0x78, 0xa5,
+ 0x08, 0x89, 0x05, 0x4e, 0x7e, 0xa0, 0x69, 0xb4,
+ 0x40, 0x60, 0x55, 0x77, 0x75, 0x9b, 0x19, 0xf2,
+ 0xd5, 0x13, 0x80, 0x77, 0xf9, 0x4b, 0x3f, 0x1e,
+ 0xee, 0xe6, 0x76, 0x84, 0x7b, 0x8c, 0xe5, 0x27,
+ 0xa8, 0x0a, 0x91, 0x01, 0x68, 0x71, 0x8a, 0x3f,
+ 0x06, 0xab, 0xf6, 0xa9, 0xa5, 0xe6, 0x72, 0x92,
+ 0xe4, 0x67, 0xe2, 0xa2, 0x46, 0x35, 0x84, 0x55,
+ 0x7d, 0xca, 0xa8, 0x85, 0xd0, 0xf1, 0x3f, 0xbe,
+ 0xd7, 0x34, 0x64, 0xfc, 0xae, 0xe3, 0xe4, 0x04,
+ 0x9f, 0x66, 0x02, 0xb9, 0x88, 0x10, 0xd9, 0xc4,
+ 0x4c, 0x31, 0x43, 0x7a, 0x93, 0xe2, 0x9b, 0x56,
+ 0x43, 0x84, 0xdc, 0xdc, 0xde, 0x1d, 0xa4, 0x02,
+ 0x0e, 0xc2, 0xef, 0xc3, 0xf8, 0x78, 0xd1, 0xb2,
+ 0x6b, 0x63, 0x18, 0xc9, 0xa9, 0xe5, 0x72, 0xd8,
+ 0xf3, 0xb9, 0xd1, 0x8a, 0xc7, 0x1a, 0x02, 0x27,
+ 0x20, 0x77, 0x10, 0xe5, 0xc8, 0xd4, 0x4a, 0x47,
+ 0xe5, 0xdf, 0x5f, 0x01, 0xaa, 0xb0, 0xd4, 0x10,
+ 0xbb, 0x69, 0xe3, 0x36, 0xc8, 0xe1, 0x3d, 0x43,
+ 0xfb, 0x86, 0xcd, 0xcc, 0xbf, 0xf4, 0x88, 0xe0,
+ 0x20, 0xca, 0xb7, 0x1b, 0xf1, 0x2f, 0x5c, 0xee,
+ 0xd4, 0xd3, 0xa3, 0xcc, 0xa4, 0x1e, 0x1c, 0x47,
+ 0xfb, 0xbf, 0xfc, 0xa2, 0x41, 0x55, 0x9d, 0xf6,
+ 0x5a, 0x5e, 0x65, 0x32, 0x34, 0x7b, 0x52, 0x8d,
+ 0xd5, 0xd0, 0x20, 0x60, 0x03, 0xab, 0x3f, 0x8c,
+ 0xd4, 0x21, 0xea, 0x2a, 0xd9, 0xc4, 0xd0, 0xd3,
+ 0x65, 0xd8, 0x7a, 0x13, 0x28, 0x62, 0x32, 0x4b,
+ 0x2c, 0x87, 0x93, 0xa8, 0xb4, 0x52, 0x45, 0x09,
+ 0x44, 0xec, 0xec, 0xc3, 0x17, 0xdb, 0x9a, 0x4d,
+ 0x5c, 0xa9, 0x11, 0xd4, 0x7d, 0xaf, 0x9e, 0xf1,
+ 0x2d, 0xb2, 0x66, 0xc5, 0x1d, 0xed, 0xb7, 0xcd,
+ 0x0b, 0x25, 0x5e, 0x30, 0x47, 0x3f, 0x40, 0xf4,
+ 0xa1, 0xa0, 0x00, 0x94, 0x10, 0xc5, 0x6a, 0x63,
+ 0x1a, 0xd5, 0x88, 0x92, 0x8e, 0x82, 0x39, 0x87,
+ 0x3c, 0x78, 0x65, 0x58, 0x42, 0x75, 0x5b, 0xdd,
+ 0x77, 0x3e, 0x09, 0x4e, 0x76, 0x5b, 0xe6, 0x0e,
+ 0x4d, 0x38, 0xb2, 0xc0, 0xb8, 0x95, 0x01, 0x7a,
+ 0x10, 0xe0, 0xfb, 0x07, 0xf2, 0xab, 0x2d, 0x8c,
+ 0x32, 0xed, 0x2b, 0xc0, 0x46, 0xc2, 0xf5, 0x38,
+ 0x83, 0xf0, 0x17, 0xec, 0xc1, 0x20, 0x6a, 0x9a,
+ 0x0b, 0x00, 0xa0, 0x98, 0x22, 0x50, 0x23, 0xd5,
+ 0x80, 0x6b, 0xf6, 0x1f, 0xc3, 0xcc, 0x97, 0xc9,
+ 0x24, 0x9f, 0xf3, 0xaf, 0x43, 0x14, 0xd5, 0xa0
+};
+static const u8 enc_assoc010[] __initconst = {
+ 0xd2, 0xa1, 0x70, 0xdb, 0x7a, 0xf8, 0xfa, 0x27,
+ 0xba, 0x73, 0x0f, 0xbf, 0x3d, 0x1e, 0x82, 0xb2
+};
+static const u8 enc_nonce010[] __initconst = {
+ 0xdb, 0x92, 0x0f, 0x7f, 0x17, 0x54, 0x0c, 0x30
+};
+static const u8 enc_key010[] __initconst = {
+ 0x47, 0x11, 0xeb, 0x86, 0x2b, 0x2c, 0xab, 0x44,
+ 0x34, 0xda, 0x7f, 0x57, 0x03, 0x39, 0x0c, 0xaf,
+ 0x2c, 0x14, 0xfd, 0x65, 0x23, 0xe9, 0x8e, 0x74,
+ 0xd5, 0x08, 0x68, 0x08, 0xe7, 0xb4, 0x72, 0xd7
+};
+
+static const u8 enc_input011[] __initconst = {
+ 0x7a, 0x57, 0xf2, 0xc7, 0x06, 0x3f, 0x50, 0x7b,
+ 0x36, 0x1a, 0x66, 0x5c, 0xb9, 0x0e, 0x5e, 0x3b,
+ 0x45, 0x60, 0xbe, 0x9a, 0x31, 0x9f, 0xff, 0x5d,
+ 0x66, 0x34, 0xb4, 0xdc, 0xfb, 0x9d, 0x8e, 0xee,
+ 0x6a, 0x33, 0xa4, 0x07, 0x3c, 0xf9, 0x4c, 0x30,
+ 0xa1, 0x24, 0x52, 0xf9, 0x50, 0x46, 0x88, 0x20,
+ 0x02, 0x32, 0x3a, 0x0e, 0x99, 0x63, 0xaf, 0x1f,
+ 0x15, 0x28, 0x2a, 0x05, 0xff, 0x57, 0x59, 0x5e,
+ 0x18, 0xa1, 0x1f, 0xd0, 0x92, 0x5c, 0x88, 0x66,
+ 0x1b, 0x00, 0x64, 0xa5, 0x93, 0x8d, 0x06, 0x46,
+ 0xb0, 0x64, 0x8b, 0x8b, 0xef, 0x99, 0x05, 0x35,
+ 0x85, 0xb3, 0xf3, 0x33, 0xbb, 0xec, 0x66, 0xb6,
+ 0x3d, 0x57, 0x42, 0xe3, 0xb4, 0xc6, 0xaa, 0xb0,
+ 0x41, 0x2a, 0xb9, 0x59, 0xa9, 0xf6, 0x3e, 0x15,
+ 0x26, 0x12, 0x03, 0x21, 0x4c, 0x74, 0x43, 0x13,
+ 0x2a, 0x03, 0x27, 0x09, 0xb4, 0xfb, 0xe7, 0xb7,
+ 0x40, 0xff, 0x5e, 0xce, 0x48, 0x9a, 0x60, 0xe3,
+ 0x8b, 0x80, 0x8c, 0x38, 0x2d, 0xcb, 0x93, 0x37,
+ 0x74, 0x05, 0x52, 0x6f, 0x73, 0x3e, 0xc3, 0xbc,
+ 0xca, 0x72, 0x0a, 0xeb, 0xf1, 0x3b, 0xa0, 0x95,
+ 0xdc, 0x8a, 0xc4, 0xa9, 0xdc, 0xca, 0x44, 0xd8,
+ 0x08, 0x63, 0x6a, 0x36, 0xd3, 0x3c, 0xb8, 0xac,
+ 0x46, 0x7d, 0xfd, 0xaa, 0xeb, 0x3e, 0x0f, 0x45,
+ 0x8f, 0x49, 0xda, 0x2b, 0xf2, 0x12, 0xbd, 0xaf,
+ 0x67, 0x8a, 0x63, 0x48, 0x4b, 0x55, 0x5f, 0x6d,
+ 0x8c, 0xb9, 0x76, 0x34, 0x84, 0xae, 0xc2, 0xfc,
+ 0x52, 0x64, 0x82, 0xf7, 0xb0, 0x06, 0xf0, 0x45,
+ 0x73, 0x12, 0x50, 0x30, 0x72, 0xea, 0x78, 0x9a,
+ 0xa8, 0xaf, 0xb5, 0xe3, 0xbb, 0x77, 0x52, 0xec,
+ 0x59, 0x84, 0xbf, 0x6b, 0x8f, 0xce, 0x86, 0x5e,
+ 0x1f, 0x23, 0xe9, 0xfb, 0x08, 0x86, 0xf7, 0x10,
+ 0xb9, 0xf2, 0x44, 0x96, 0x44, 0x63, 0xa9, 0xa8,
+ 0x78, 0x00, 0x23, 0xd6, 0xc7, 0xe7, 0x6e, 0x66,
+ 0x4f, 0xcc, 0xee, 0x15, 0xb3, 0xbd, 0x1d, 0xa0,
+ 0xe5, 0x9c, 0x1b, 0x24, 0x2c, 0x4d, 0x3c, 0x62,
+ 0x35, 0x9c, 0x88, 0x59, 0x09, 0xdd, 0x82, 0x1b,
+ 0xcf, 0x0a, 0x83, 0x6b, 0x3f, 0xae, 0x03, 0xc4,
+ 0xb4, 0xdd, 0x7e, 0x5b, 0x28, 0x76, 0x25, 0x96,
+ 0xd9, 0xc9, 0x9d, 0x5f, 0x86, 0xfa, 0xf6, 0xd7,
+ 0xd2, 0xe6, 0x76, 0x1d, 0x0f, 0xa1, 0xdc, 0x74,
+ 0x05, 0x1b, 0x1d, 0xe0, 0xcd, 0x16, 0xb0, 0xa8,
+ 0x8a, 0x34, 0x7b, 0x15, 0x11, 0x77, 0xe5, 0x7b,
+ 0x7e, 0x20, 0xf7, 0xda, 0x38, 0xda, 0xce, 0x70,
+ 0xe9, 0xf5, 0x6c, 0xd9, 0xbe, 0x0c, 0x4c, 0x95,
+ 0x4c, 0xc2, 0x9b, 0x34, 0x55, 0x55, 0xe1, 0xf3,
+ 0x46, 0x8e, 0x48, 0x74, 0x14, 0x4f, 0x9d, 0xc9,
+ 0xf5, 0xe8, 0x1a, 0xf0, 0x11, 0x4a, 0xc1, 0x8d,
+ 0xe0, 0x93, 0xa0, 0xbe, 0x09, 0x1c, 0x2b, 0x4e,
+ 0x0f, 0xb2, 0x87, 0x8b, 0x84, 0xfe, 0x92, 0x32,
+ 0x14, 0xd7, 0x93, 0xdf, 0xe7, 0x44, 0xbc, 0xc5,
+ 0xae, 0x53, 0x69, 0xd8, 0xb3, 0x79, 0x37, 0x80,
+ 0xe3, 0x17, 0x5c, 0xec, 0x53, 0x00, 0x9a, 0xe3,
+ 0x8e, 0xdc, 0x38, 0xb8, 0x66, 0xf0, 0xd3, 0xad,
+ 0x1d, 0x02, 0x96, 0x86, 0x3e, 0x9d, 0x3b, 0x5d,
+ 0xa5, 0x7f, 0x21, 0x10, 0xf1, 0x1f, 0x13, 0x20,
+ 0xf9, 0x57, 0x87, 0x20, 0xf5, 0x5f, 0xf1, 0x17,
+ 0x48, 0x0a, 0x51, 0x5a, 0xcd, 0x19, 0x03, 0xa6,
+ 0x5a, 0xd1, 0x12, 0x97, 0xe9, 0x48, 0xe2, 0x1d,
+ 0x83, 0x75, 0x50, 0xd9, 0x75, 0x7d, 0x6a, 0x82,
+ 0xa1, 0xf9, 0x4e, 0x54, 0x87, 0x89, 0xc9, 0x0c,
+ 0xb7, 0x5b, 0x6a, 0x91, 0xc1, 0x9c, 0xb2, 0xa9,
+ 0xdc, 0x9a, 0xa4, 0x49, 0x0a, 0x6d, 0x0d, 0xbb,
+ 0xde, 0x86, 0x44, 0xdd, 0x5d, 0x89, 0x2b, 0x96,
+ 0x0f, 0x23, 0x95, 0xad, 0xcc, 0xa2, 0xb3, 0xb9,
+ 0x7e, 0x74, 0x38, 0xba, 0x9f, 0x73, 0xae, 0x5f,
+ 0xf8, 0x68, 0xa2, 0xe0, 0xa9, 0xce, 0xbd, 0x40,
+ 0xd4, 0x4c, 0x6b, 0xd2, 0x56, 0x62, 0xb0, 0xcc,
+ 0x63, 0x7e, 0x5b, 0xd3, 0xae, 0xd1, 0x75, 0xce,
+ 0xbb, 0xb4, 0x5b, 0xa8, 0xf8, 0xb4, 0xac, 0x71,
+ 0x75, 0xaa, 0xc9, 0x9f, 0xbb, 0x6c, 0xad, 0x0f,
+ 0x55, 0x5d, 0xe8, 0x85, 0x7d, 0xf9, 0x21, 0x35,
+ 0xea, 0x92, 0x85, 0x2b, 0x00, 0xec, 0x84, 0x90,
+ 0x0a, 0x63, 0x96, 0xe4, 0x6b, 0xa9, 0x77, 0xb8,
+ 0x91, 0xf8, 0x46, 0x15, 0x72, 0x63, 0x70, 0x01,
+ 0x40, 0xa3, 0xa5, 0x76, 0x62, 0x2b, 0xbf, 0xf1,
+ 0xe5, 0x8d, 0x9f, 0xa3, 0xfa, 0x9b, 0x03, 0xbe,
+ 0xfe, 0x65, 0x6f, 0xa2, 0x29, 0x0d, 0x54, 0xb4,
+ 0x71, 0xce, 0xa9, 0xd6, 0x3d, 0x88, 0xf9, 0xaf,
+ 0x6b, 0xa8, 0x9e, 0xf4, 0x16, 0x96, 0x36, 0xb9,
+ 0x00, 0xdc, 0x10, 0xab, 0xb5, 0x08, 0x31, 0x1f,
+ 0x00, 0xb1, 0x3c, 0xd9, 0x38, 0x3e, 0xc6, 0x04,
+ 0xa7, 0x4e, 0xe8, 0xae, 0xed, 0x98, 0xc2, 0xf7,
+ 0xb9, 0x00, 0x5f, 0x8c, 0x60, 0xd1, 0xe5, 0x15,
+ 0xf7, 0xae, 0x1e, 0x84, 0x88, 0xd1, 0xf6, 0xbc,
+ 0x3a, 0x89, 0x35, 0x22, 0x83, 0x7c, 0xca, 0xf0,
+ 0x33, 0x82, 0x4c, 0x79, 0x3c, 0xfd, 0xb1, 0xae,
+ 0x52, 0x62, 0x55, 0xd2, 0x41, 0x60, 0xc6, 0xbb,
+ 0xfa, 0x0e, 0x59, 0xd6, 0xa8, 0xfe, 0x5d, 0xed,
+ 0x47, 0x3d, 0xe0, 0xea, 0x1f, 0x6e, 0x43, 0x51,
+ 0xec, 0x10, 0x52, 0x56, 0x77, 0x42, 0x6b, 0x52,
+ 0x87, 0xd8, 0xec, 0xe0, 0xaa, 0x76, 0xa5, 0x84,
+ 0x2a, 0x22, 0x24, 0xfd, 0x92, 0x40, 0x88, 0xd5,
+ 0x85, 0x1c, 0x1f, 0x6b, 0x47, 0xa0, 0xc4, 0xe4,
+ 0xef, 0xf4, 0xea, 0xd7, 0x59, 0xac, 0x2a, 0x9e,
+ 0x8c, 0xfa, 0x1f, 0x42, 0x08, 0xfe, 0x4f, 0x74,
+ 0xa0, 0x26, 0xf5, 0xb3, 0x84, 0xf6, 0x58, 0x5f,
+ 0x26, 0x66, 0x3e, 0xd7, 0xe4, 0x22, 0x91, 0x13,
+ 0xc8, 0xac, 0x25, 0x96, 0x23, 0xd8, 0x09, 0xea,
+ 0x45, 0x75, 0x23, 0xb8, 0x5f, 0xc2, 0x90, 0x8b,
+ 0x09, 0xc4, 0xfc, 0x47, 0x6c, 0x6d, 0x0a, 0xef,
+ 0x69, 0xa4, 0x38, 0x19, 0xcf, 0x7d, 0xf9, 0x09,
+ 0x73, 0x9b, 0x60, 0x5a, 0xf7, 0x37, 0xb5, 0xfe,
+ 0x9f, 0xe3, 0x2b, 0x4c, 0x0d, 0x6e, 0x19, 0xf1,
+ 0xd6, 0xc0, 0x70, 0xf3, 0x9d, 0x22, 0x3c, 0xf9,
+ 0x49, 0xce, 0x30, 0x8e, 0x44, 0xb5, 0x76, 0x15,
+ 0x8f, 0x52, 0xfd, 0xa5, 0x04, 0xb8, 0x55, 0x6a,
+ 0x36, 0x59, 0x7c, 0xc4, 0x48, 0xb8, 0xd7, 0xab,
+ 0x05, 0x66, 0xe9, 0x5e, 0x21, 0x6f, 0x6b, 0x36,
+ 0x29, 0xbb, 0xe9, 0xe3, 0xa2, 0x9a, 0xa8, 0xcd,
+ 0x55, 0x25, 0x11, 0xba, 0x5a, 0x58, 0xa0, 0xde,
+ 0xae, 0x19, 0x2a, 0x48, 0x5a, 0xff, 0x36, 0xcd,
+ 0x6d, 0x16, 0x7a, 0x73, 0x38, 0x46, 0xe5, 0x47,
+ 0x59, 0xc8, 0xa2, 0xf6, 0xe2, 0x6c, 0x83, 0xc5,
+ 0x36, 0x2c, 0x83, 0x7d, 0xb4, 0x01, 0x05, 0x69,
+ 0xe7, 0xaf, 0x5c, 0xc4, 0x64, 0x82, 0x12, 0x21,
+ 0xef, 0xf7, 0xd1, 0x7d, 0xb8, 0x8d, 0x8c, 0x98,
+ 0x7c, 0x5f, 0x7d, 0x92, 0x88, 0xb9, 0x94, 0x07,
+ 0x9c, 0xd8, 0xe9, 0x9c, 0x17, 0x38, 0xe3, 0x57,
+ 0x6c, 0xe0, 0xdc, 0xa5, 0x92, 0x42, 0xb3, 0xbd,
+ 0x50, 0xa2, 0x7e, 0xb5, 0xb1, 0x52, 0x72, 0x03,
+ 0x97, 0xd8, 0xaa, 0x9a, 0x1e, 0x75, 0x41, 0x11,
+ 0xa3, 0x4f, 0xcc, 0xd4, 0xe3, 0x73, 0xad, 0x96,
+ 0xdc, 0x47, 0x41, 0x9f, 0xb0, 0xbe, 0x79, 0x91,
+ 0xf5, 0xb6, 0x18, 0xfe, 0xc2, 0x83, 0x18, 0x7d,
+ 0x73, 0xd9, 0x4f, 0x83, 0x84, 0x03, 0xb3, 0xf0,
+ 0x77, 0x66, 0x3d, 0x83, 0x63, 0x2e, 0x2c, 0xf9,
+ 0xdd, 0xa6, 0x1f, 0x89, 0x82, 0xb8, 0x23, 0x42,
+ 0xeb, 0xe2, 0xca, 0x70, 0x82, 0x61, 0x41, 0x0a,
+ 0x6d, 0x5f, 0x75, 0xc5, 0xe2, 0xc4, 0x91, 0x18,
+ 0x44, 0x22, 0xfa, 0x34, 0x10, 0xf5, 0x20, 0xdc,
+ 0xb7, 0xdd, 0x2a, 0x20, 0x77, 0xf5, 0xf9, 0xce,
+ 0xdb, 0xa0, 0x0a, 0x52, 0x2a, 0x4e, 0xdd, 0xcc,
+ 0x97, 0xdf, 0x05, 0xe4, 0x5e, 0xb7, 0xaa, 0xf0,
+ 0xe2, 0x80, 0xff, 0xba, 0x1a, 0x0f, 0xac, 0xdf,
+ 0x02, 0x32, 0xe6, 0xf7, 0xc7, 0x17, 0x13, 0xb7,
+ 0xfc, 0x98, 0x48, 0x8c, 0x0d, 0x82, 0xc9, 0x80,
+ 0x7a, 0xe2, 0x0a, 0xc5, 0xb4, 0xde, 0x7c, 0x3c,
+ 0x79, 0x81, 0x0e, 0x28, 0x65, 0x79, 0x67, 0x82,
+ 0x69, 0x44, 0x66, 0x09, 0xf7, 0x16, 0x1a, 0xf9,
+ 0x7d, 0x80, 0xa1, 0x79, 0x14, 0xa9, 0xc8, 0x20,
+ 0xfb, 0xa2, 0x46, 0xbe, 0x08, 0x35, 0x17, 0x58,
+ 0xc1, 0x1a, 0xda, 0x2a, 0x6b, 0x2e, 0x1e, 0xe6,
+ 0x27, 0x55, 0x7b, 0x19, 0xe2, 0xfb, 0x64, 0xfc,
+ 0x5e, 0x15, 0x54, 0x3c, 0xe7, 0xc2, 0x11, 0x50,
+ 0x30, 0xb8, 0x72, 0x03, 0x0b, 0x1a, 0x9f, 0x86,
+ 0x27, 0x11, 0x5c, 0x06, 0x2b, 0xbd, 0x75, 0x1a,
+ 0x0a, 0xda, 0x01, 0xfa, 0x5c, 0x4a, 0xc1, 0x80,
+ 0x3a, 0x6e, 0x30, 0xc8, 0x2c, 0xeb, 0x56, 0xec,
+ 0x89, 0xfa, 0x35, 0x7b, 0xb2, 0xf0, 0x97, 0x08,
+ 0x86, 0x53, 0xbe, 0xbd, 0x40, 0x41, 0x38, 0x1c,
+ 0xb4, 0x8b, 0x79, 0x2e, 0x18, 0x96, 0x94, 0xde,
+ 0xe8, 0xca, 0xe5, 0x9f, 0x92, 0x9f, 0x15, 0x5d,
+ 0x56, 0x60, 0x5c, 0x09, 0xf9, 0x16, 0xf4, 0x17,
+ 0x0f, 0xf6, 0x4c, 0xda, 0xe6, 0x67, 0x89, 0x9f,
+ 0xca, 0x6c, 0xe7, 0x9b, 0x04, 0x62, 0x0e, 0x26,
+ 0xa6, 0x52, 0xbd, 0x29, 0xff, 0xc7, 0xa4, 0x96,
+ 0xe6, 0x6a, 0x02, 0xa5, 0x2e, 0x7b, 0xfe, 0x97,
+ 0x68, 0x3e, 0x2e, 0x5f, 0x3b, 0x0f, 0x36, 0xd6,
+ 0x98, 0x19, 0x59, 0x48, 0xd2, 0xc6, 0xe1, 0x55,
+ 0x1a, 0x6e, 0xd6, 0xed, 0x2c, 0xba, 0xc3, 0x9e,
+ 0x64, 0xc9, 0x95, 0x86, 0x35, 0x5e, 0x3e, 0x88,
+ 0x69, 0x99, 0x4b, 0xee, 0xbe, 0x9a, 0x99, 0xb5,
+ 0x6e, 0x58, 0xae, 0xdd, 0x22, 0xdb, 0xdd, 0x6b,
+ 0xfc, 0xaf, 0x90, 0xa3, 0x3d, 0xa4, 0xc1, 0x15,
+ 0x92, 0x18, 0x8d, 0xd2, 0x4b, 0x7b, 0x06, 0xd1,
+ 0x37, 0xb5, 0xe2, 0x7c, 0x2c, 0xf0, 0x25, 0xe4,
+ 0x94, 0x2a, 0xbd, 0xe3, 0x82, 0x70, 0x78, 0xa3,
+ 0x82, 0x10, 0x5a, 0x90, 0xd7, 0xa4, 0xfa, 0xaf,
+ 0x1a, 0x88, 0x59, 0xdc, 0x74, 0x12, 0xb4, 0x8e,
+ 0xd7, 0x19, 0x46, 0xf4, 0x84, 0x69, 0x9f, 0xbb,
+ 0x70, 0xa8, 0x4c, 0x52, 0x81, 0xa9, 0xff, 0x76,
+ 0x1c, 0xae, 0xd8, 0x11, 0x3d, 0x7f, 0x7d, 0xc5,
+ 0x12, 0x59, 0x28, 0x18, 0xc2, 0xa2, 0xb7, 0x1c,
+ 0x88, 0xf8, 0xd6, 0x1b, 0xa6, 0x7d, 0x9e, 0xde,
+ 0x29, 0xf8, 0xed, 0xff, 0xeb, 0x92, 0x24, 0x4f,
+ 0x05, 0xaa, 0xd9, 0x49, 0xba, 0x87, 0x59, 0x51,
+ 0xc9, 0x20, 0x5c, 0x9b, 0x74, 0xcf, 0x03, 0xd9,
+ 0x2d, 0x34, 0xc7, 0x5b, 0xa5, 0x40, 0xb2, 0x99,
+ 0xf5, 0xcb, 0xb4, 0xf6, 0xb7, 0x72, 0x4a, 0xd6,
+ 0xbd, 0xb0, 0xf3, 0x93, 0xe0, 0x1b, 0xa8, 0x04,
+ 0x1e, 0x35, 0xd4, 0x80, 0x20, 0xf4, 0x9c, 0x31,
+ 0x6b, 0x45, 0xb9, 0x15, 0xb0, 0x5e, 0xdd, 0x0a,
+ 0x33, 0x9c, 0x83, 0xcd, 0x58, 0x89, 0x50, 0x56,
+ 0xbb, 0x81, 0x00, 0x91, 0x32, 0xf3, 0x1b, 0x3e,
+ 0xcf, 0x45, 0xe1, 0xf9, 0xe1, 0x2c, 0x26, 0x78,
+ 0x93, 0x9a, 0x60, 0x46, 0xc9, 0xb5, 0x5e, 0x6a,
+ 0x28, 0x92, 0x87, 0x3f, 0x63, 0x7b, 0xdb, 0xf7,
+ 0xd0, 0x13, 0x9d, 0x32, 0x40, 0x5e, 0xcf, 0xfb,
+ 0x79, 0x68, 0x47, 0x4c, 0xfd, 0x01, 0x17, 0xe6,
+ 0x97, 0x93, 0x78, 0xbb, 0xa6, 0x27, 0xa3, 0xe8,
+ 0x1a, 0xe8, 0x94, 0x55, 0x7d, 0x08, 0xe5, 0xdc,
+ 0x66, 0xa3, 0x69, 0xc8, 0xca, 0xc5, 0xa1, 0x84,
+ 0x55, 0xde, 0x08, 0x91, 0x16, 0x3a, 0x0c, 0x86,
+ 0xab, 0x27, 0x2b, 0x64, 0x34, 0x02, 0x6c, 0x76,
+ 0x8b, 0xc6, 0xaf, 0xcc, 0xe1, 0xd6, 0x8c, 0x2a,
+ 0x18, 0x3d, 0xa6, 0x1b, 0x37, 0x75, 0x45, 0x73,
+ 0xc2, 0x75, 0xd7, 0x53, 0x78, 0x3a, 0xd6, 0xe8,
+ 0x29, 0xd2, 0x4a, 0xa8, 0x1e, 0x82, 0xf6, 0xb6,
+ 0x81, 0xde, 0x21, 0xed, 0x2b, 0x56, 0xbb, 0xf2,
+ 0xd0, 0x57, 0xc1, 0x7c, 0xd2, 0x6a, 0xd2, 0x56,
+ 0xf5, 0x13, 0x5f, 0x1c, 0x6a, 0x0b, 0x74, 0xfb,
+ 0xe9, 0xfe, 0x9e, 0xea, 0x95, 0xb2, 0x46, 0xab,
+ 0x0a, 0xfc, 0xfd, 0xf3, 0xbb, 0x04, 0x2b, 0x76,
+ 0x1b, 0xa4, 0x74, 0xb0, 0xc1, 0x78, 0xc3, 0x69,
+ 0xe2, 0xb0, 0x01, 0xe1, 0xde, 0x32, 0x4c, 0x8d,
+ 0x1a, 0xb3, 0x38, 0x08, 0xd5, 0xfc, 0x1f, 0xdc,
+ 0x0e, 0x2c, 0x9c, 0xb1, 0xa1, 0x63, 0x17, 0x22,
+ 0xf5, 0x6c, 0x93, 0x70, 0x74, 0x00, 0xf8, 0x39,
+ 0x01, 0x94, 0xd1, 0x32, 0x23, 0x56, 0x5d, 0xa6,
+ 0x02, 0x76, 0x76, 0x93, 0xce, 0x2f, 0x19, 0xe9,
+ 0x17, 0x52, 0xae, 0x6e, 0x2c, 0x6d, 0x61, 0x7f,
+ 0x3b, 0xaa, 0xe0, 0x52, 0x85, 0xc5, 0x65, 0xc1,
+ 0xbb, 0x8e, 0x5b, 0x21, 0xd5, 0xc9, 0x78, 0x83,
+ 0x07, 0x97, 0x4c, 0x62, 0x61, 0x41, 0xd4, 0xfc,
+ 0xc9, 0x39, 0xe3, 0x9b, 0xd0, 0xcc, 0x75, 0xc4,
+ 0x97, 0xe6, 0xdd, 0x2a, 0x5f, 0xa6, 0xe8, 0x59,
+ 0x6c, 0x98, 0xb9, 0x02, 0xe2, 0xa2, 0xd6, 0x68,
+ 0xee, 0x3b, 0x1d, 0xe3, 0x4d, 0x5b, 0x30, 0xef,
+ 0x03, 0xf2, 0xeb, 0x18, 0x57, 0x36, 0xe8, 0xa1,
+ 0xf4, 0x47, 0xfb, 0xcb, 0x8f, 0xcb, 0xc8, 0xf3,
+ 0x4f, 0x74, 0x9d, 0x9d, 0xb1, 0x8d, 0x14, 0x44,
+ 0xd9, 0x19, 0xb4, 0x54, 0x4f, 0x75, 0x19, 0x09,
+ 0xa0, 0x75, 0xbc, 0x3b, 0x82, 0xc6, 0x3f, 0xb8,
+ 0x83, 0x19, 0x6e, 0xd6, 0x37, 0xfe, 0x6e, 0x8a,
+ 0x4e, 0xe0, 0x4a, 0xab, 0x7b, 0xc8, 0xb4, 0x1d,
+ 0xf4, 0xed, 0x27, 0x03, 0x65, 0xa2, 0xa1, 0xae,
+ 0x11, 0xe7, 0x98, 0x78, 0x48, 0x91, 0xd2, 0xd2,
+ 0xd4, 0x23, 0x78, 0x50, 0xb1, 0x5b, 0x85, 0x10,
+ 0x8d, 0xca, 0x5f, 0x0f, 0x71, 0xae, 0x72, 0x9a,
+ 0xf6, 0x25, 0x19, 0x60, 0x06, 0xf7, 0x10, 0x34,
+ 0x18, 0x0d, 0xc9, 0x9f, 0x7b, 0x0c, 0x9b, 0x8f,
+ 0x91, 0x1b, 0x9f, 0xcd, 0x10, 0xee, 0x75, 0xf9,
+ 0x97, 0x66, 0xfc, 0x4d, 0x33, 0x6e, 0x28, 0x2b,
+ 0x92, 0x85, 0x4f, 0xab, 0x43, 0x8d, 0x8f, 0x7d,
+ 0x86, 0xa7, 0xc7, 0xd8, 0xd3, 0x0b, 0x8b, 0x57,
+ 0xb6, 0x1d, 0x95, 0x0d, 0xe9, 0xbc, 0xd9, 0x03,
+ 0xd9, 0x10, 0x19, 0xc3, 0x46, 0x63, 0x55, 0x87,
+ 0x61, 0x79, 0x6c, 0x95, 0x0e, 0x9c, 0xdd, 0xca,
+ 0xc3, 0xf3, 0x64, 0xf0, 0x7d, 0x76, 0xb7, 0x53,
+ 0x67, 0x2b, 0x1e, 0x44, 0x56, 0x81, 0xea, 0x8f,
+ 0x5c, 0x42, 0x16, 0xb8, 0x28, 0xeb, 0x1b, 0x61,
+ 0x10, 0x1e, 0xbf, 0xec, 0xa8
+};
+static const u8 enc_output011[] __initconst = {
+ 0x6a, 0xfc, 0x4b, 0x25, 0xdf, 0xc0, 0xe4, 0xe8,
+ 0x17, 0x4d, 0x4c, 0xc9, 0x7e, 0xde, 0x3a, 0xcc,
+ 0x3c, 0xba, 0x6a, 0x77, 0x47, 0xdb, 0xe3, 0x74,
+ 0x7a, 0x4d, 0x5f, 0x8d, 0x37, 0x55, 0x80, 0x73,
+ 0x90, 0x66, 0x5d, 0x3a, 0x7d, 0x5d, 0x86, 0x5e,
+ 0x8d, 0xfd, 0x83, 0xff, 0x4e, 0x74, 0x6f, 0xf9,
+ 0xe6, 0x70, 0x17, 0x70, 0x3e, 0x96, 0xa7, 0x7e,
+ 0xcb, 0xab, 0x8f, 0x58, 0x24, 0x9b, 0x01, 0xfd,
+ 0xcb, 0xe6, 0x4d, 0x9b, 0xf0, 0x88, 0x94, 0x57,
+ 0x66, 0xef, 0x72, 0x4c, 0x42, 0x6e, 0x16, 0x19,
+ 0x15, 0xea, 0x70, 0x5b, 0xac, 0x13, 0xdb, 0x9f,
+ 0x18, 0xe2, 0x3c, 0x26, 0x97, 0xbc, 0xdc, 0x45,
+ 0x8c, 0x6c, 0x24, 0x69, 0x9c, 0xf7, 0x65, 0x1e,
+ 0x18, 0x59, 0x31, 0x7c, 0xe4, 0x73, 0xbc, 0x39,
+ 0x62, 0xc6, 0x5c, 0x9f, 0xbf, 0xfa, 0x90, 0x03,
+ 0xc9, 0x72, 0x26, 0xb6, 0x1b, 0xc2, 0xb7, 0x3f,
+ 0xf2, 0x13, 0x77, 0xf2, 0x8d, 0xb9, 0x47, 0xd0,
+ 0x53, 0xdd, 0xc8, 0x91, 0x83, 0x8b, 0xb1, 0xce,
+ 0xa3, 0xfe, 0xcd, 0xd9, 0xdd, 0x92, 0x7b, 0xdb,
+ 0xb8, 0xfb, 0xc9, 0x2d, 0x01, 0x59, 0x39, 0x52,
+ 0xad, 0x1b, 0xec, 0xcf, 0xd7, 0x70, 0x13, 0x21,
+ 0xf5, 0x47, 0xaa, 0x18, 0x21, 0x5c, 0xc9, 0x9a,
+ 0xd2, 0x6b, 0x05, 0x9c, 0x01, 0xa1, 0xda, 0x35,
+ 0x5d, 0xb3, 0x70, 0xe6, 0xa9, 0x80, 0x8b, 0x91,
+ 0xb7, 0xb3, 0x5f, 0x24, 0x9a, 0xb7, 0xd1, 0x6b,
+ 0xa1, 0x1c, 0x50, 0xba, 0x49, 0xe0, 0xee, 0x2e,
+ 0x75, 0xac, 0x69, 0xc0, 0xeb, 0x03, 0xdd, 0x19,
+ 0xe5, 0xf6, 0x06, 0xdd, 0xc3, 0xd7, 0x2b, 0x07,
+ 0x07, 0x30, 0xa7, 0x19, 0x0c, 0xbf, 0xe6, 0x18,
+ 0xcc, 0xb1, 0x01, 0x11, 0x85, 0x77, 0x1d, 0x96,
+ 0xa7, 0xa3, 0x00, 0x84, 0x02, 0xa2, 0x83, 0x68,
+ 0xda, 0x17, 0x27, 0xc8, 0x7f, 0x23, 0xb7, 0xf4,
+ 0x13, 0x85, 0xcf, 0xdd, 0x7a, 0x7d, 0x24, 0x57,
+ 0xfe, 0x05, 0x93, 0xf5, 0x74, 0xce, 0xed, 0x0c,
+ 0x20, 0x98, 0x8d, 0x92, 0x30, 0xa1, 0x29, 0x23,
+ 0x1a, 0xa0, 0x4f, 0x69, 0x56, 0x4c, 0xe1, 0xc8,
+ 0xce, 0xf6, 0x9a, 0x0c, 0xa4, 0xfa, 0x04, 0xf6,
+ 0x62, 0x95, 0xf2, 0xfa, 0xc7, 0x40, 0x68, 0x40,
+ 0x8f, 0x41, 0xda, 0xb4, 0x26, 0x6f, 0x70, 0xab,
+ 0x40, 0x61, 0xa4, 0x0e, 0x75, 0xfb, 0x86, 0xeb,
+ 0x9d, 0x9a, 0x1f, 0xec, 0x76, 0x99, 0xe7, 0xea,
+ 0xaa, 0x1e, 0x2d, 0xb5, 0xd4, 0xa6, 0x1a, 0xb8,
+ 0x61, 0x0a, 0x1d, 0x16, 0x5b, 0x98, 0xc2, 0x31,
+ 0x40, 0xe7, 0x23, 0x1d, 0x66, 0x99, 0xc8, 0xc0,
+ 0xd7, 0xce, 0xf3, 0x57, 0x40, 0x04, 0x3f, 0xfc,
+ 0xea, 0xb3, 0xfc, 0xd2, 0xd3, 0x99, 0xa4, 0x94,
+ 0x69, 0xa0, 0xef, 0xd1, 0x85, 0xb3, 0xa6, 0xb1,
+ 0x28, 0xbf, 0x94, 0x67, 0x22, 0xc3, 0x36, 0x46,
+ 0xf8, 0xd2, 0x0f, 0x5f, 0xf4, 0x59, 0x80, 0xe6,
+ 0x2d, 0x43, 0x08, 0x7d, 0x19, 0x09, 0x97, 0xa7,
+ 0x4c, 0x3d, 0x8d, 0xba, 0x65, 0x62, 0xa3, 0x71,
+ 0x33, 0x29, 0x62, 0xdb, 0xc1, 0x33, 0x34, 0x1a,
+ 0x63, 0x33, 0x16, 0xb6, 0x64, 0x7e, 0xab, 0x33,
+ 0xf0, 0xe6, 0x26, 0x68, 0xba, 0x1d, 0x2e, 0x38,
+ 0x08, 0xe6, 0x02, 0xd3, 0x25, 0x2c, 0x47, 0x23,
+ 0x58, 0x34, 0x0f, 0x9d, 0x63, 0x4f, 0x63, 0xbb,
+ 0x7f, 0x3b, 0x34, 0x38, 0xa7, 0xb5, 0x8d, 0x65,
+ 0xd9, 0x9f, 0x79, 0x55, 0x3e, 0x4d, 0xe7, 0x73,
+ 0xd8, 0xf6, 0x98, 0x97, 0x84, 0x60, 0x9c, 0xc8,
+ 0xa9, 0x3c, 0xf6, 0xdc, 0x12, 0x5c, 0xe1, 0xbb,
+ 0x0b, 0x8b, 0x98, 0x9c, 0x9d, 0x26, 0x7c, 0x4a,
+ 0xe6, 0x46, 0x36, 0x58, 0x21, 0x4a, 0xee, 0xca,
+ 0xd7, 0x3b, 0xc2, 0x6c, 0x49, 0x2f, 0xe5, 0xd5,
+ 0x03, 0x59, 0x84, 0x53, 0xcb, 0xfe, 0x92, 0x71,
+ 0x2e, 0x7c, 0x21, 0xcc, 0x99, 0x85, 0x7f, 0xb8,
+ 0x74, 0x90, 0x13, 0x42, 0x3f, 0xe0, 0x6b, 0x1d,
+ 0xf2, 0x4d, 0x54, 0xd4, 0xfc, 0x3a, 0x05, 0xe6,
+ 0x74, 0xaf, 0xa6, 0xa0, 0x2a, 0x20, 0x23, 0x5d,
+ 0x34, 0x5c, 0xd9, 0x3e, 0x4e, 0xfa, 0x93, 0xe7,
+ 0xaa, 0xe9, 0x6f, 0x08, 0x43, 0x67, 0x41, 0xc5,
+ 0xad, 0xfb, 0x31, 0x95, 0x82, 0x73, 0x32, 0xd8,
+ 0xa6, 0xa3, 0xed, 0x0e, 0x2d, 0xf6, 0x5f, 0xfd,
+ 0x80, 0xa6, 0x7a, 0xe0, 0xdf, 0x78, 0x15, 0x29,
+ 0x74, 0x33, 0xd0, 0x9e, 0x83, 0x86, 0x72, 0x22,
+ 0x57, 0x29, 0xb9, 0x9e, 0x5d, 0xd3, 0x1a, 0xb5,
+ 0x96, 0x72, 0x41, 0x3d, 0xf1, 0x64, 0x43, 0x67,
+ 0xee, 0xaa, 0x5c, 0xd3, 0x9a, 0x96, 0x13, 0x11,
+ 0x5d, 0xf3, 0x0c, 0x87, 0x82, 0x1e, 0x41, 0x9e,
+ 0xd0, 0x27, 0xd7, 0x54, 0x3b, 0x67, 0x73, 0x09,
+ 0x91, 0xe9, 0xd5, 0x36, 0xa7, 0xb5, 0x55, 0xe4,
+ 0xf3, 0x21, 0x51, 0x49, 0x22, 0x07, 0x55, 0x4f,
+ 0x44, 0x4b, 0xd2, 0x15, 0x93, 0x17, 0x2a, 0xfa,
+ 0x4d, 0x4a, 0x57, 0xdb, 0x4c, 0xa6, 0xeb, 0xec,
+ 0x53, 0x25, 0x6c, 0x21, 0xed, 0x00, 0x4c, 0x3b,
+ 0xca, 0x14, 0x57, 0xa9, 0xd6, 0x6a, 0xcd, 0x8d,
+ 0x5e, 0x74, 0xac, 0x72, 0xc1, 0x97, 0xe5, 0x1b,
+ 0x45, 0x4e, 0xda, 0xfc, 0xcc, 0x40, 0xe8, 0x48,
+ 0x88, 0x0b, 0xa3, 0xe3, 0x8d, 0x83, 0x42, 0xc3,
+ 0x23, 0xfd, 0x68, 0xb5, 0x8e, 0xf1, 0x9d, 0x63,
+ 0x77, 0xe9, 0xa3, 0x8e, 0x8c, 0x26, 0x6b, 0xbd,
+ 0x72, 0x73, 0x35, 0x0c, 0x03, 0xf8, 0x43, 0x78,
+ 0x52, 0x71, 0x15, 0x1f, 0x71, 0x5d, 0x6e, 0xed,
+ 0xb9, 0xcc, 0x86, 0x30, 0xdb, 0x2b, 0xd3, 0x82,
+ 0x88, 0x23, 0x71, 0x90, 0x53, 0x5c, 0xa9, 0x2f,
+ 0x76, 0x01, 0xb7, 0x9a, 0xfe, 0x43, 0x55, 0xa3,
+ 0x04, 0x9b, 0x0e, 0xe4, 0x59, 0xdf, 0xc9, 0xe9,
+ 0xb1, 0xea, 0x29, 0x28, 0x3c, 0x5c, 0xae, 0x72,
+ 0x84, 0xb6, 0xc6, 0xeb, 0x0c, 0x27, 0x07, 0x74,
+ 0x90, 0x0d, 0x31, 0xb0, 0x00, 0x77, 0xe9, 0x40,
+ 0x70, 0x6f, 0x68, 0xa7, 0xfd, 0x06, 0xec, 0x4b,
+ 0xc0, 0xb7, 0xac, 0xbc, 0x33, 0xb7, 0x6d, 0x0a,
+ 0xbd, 0x12, 0x1b, 0x59, 0xcb, 0xdd, 0x32, 0xf5,
+ 0x1d, 0x94, 0x57, 0x76, 0x9e, 0x0c, 0x18, 0x98,
+ 0x71, 0xd7, 0x2a, 0xdb, 0x0b, 0x7b, 0xa7, 0x71,
+ 0xb7, 0x67, 0x81, 0x23, 0x96, 0xae, 0xb9, 0x7e,
+ 0x32, 0x43, 0x92, 0x8a, 0x19, 0xa0, 0xc4, 0xd4,
+ 0x3b, 0x57, 0xf9, 0x4a, 0x2c, 0xfb, 0x51, 0x46,
+ 0xbb, 0xcb, 0x5d, 0xb3, 0xef, 0x13, 0x93, 0x6e,
+ 0x68, 0x42, 0x54, 0x57, 0xd3, 0x6a, 0x3a, 0x8f,
+ 0x9d, 0x66, 0xbf, 0xbd, 0x36, 0x23, 0xf5, 0x93,
+ 0x83, 0x7b, 0x9c, 0xc0, 0xdd, 0xc5, 0x49, 0xc0,
+ 0x64, 0xed, 0x07, 0x12, 0xb3, 0xe6, 0xe4, 0xe5,
+ 0x38, 0x95, 0x23, 0xb1, 0xa0, 0x3b, 0x1a, 0x61,
+ 0xda, 0x17, 0xac, 0xc3, 0x58, 0xdd, 0x74, 0x64,
+ 0x22, 0x11, 0xe8, 0x32, 0x1d, 0x16, 0x93, 0x85,
+ 0x99, 0xa5, 0x9c, 0x34, 0x55, 0xb1, 0xe9, 0x20,
+ 0x72, 0xc9, 0x28, 0x7b, 0x79, 0x00, 0xa1, 0xa6,
+ 0xa3, 0x27, 0x40, 0x18, 0x8a, 0x54, 0xe0, 0xcc,
+ 0xe8, 0x4e, 0x8e, 0x43, 0x96, 0xe7, 0x3f, 0xc8,
+ 0xe9, 0xb2, 0xf9, 0xc9, 0xda, 0x04, 0x71, 0x50,
+ 0x47, 0xe4, 0xaa, 0xce, 0xa2, 0x30, 0xc8, 0xe4,
+ 0xac, 0xc7, 0x0d, 0x06, 0x2e, 0xe6, 0xe8, 0x80,
+ 0x36, 0x29, 0x9e, 0x01, 0xb8, 0xc3, 0xf0, 0xa0,
+ 0x5d, 0x7a, 0xca, 0x4d, 0xa0, 0x57, 0xbd, 0x2a,
+ 0x45, 0xa7, 0x7f, 0x9c, 0x93, 0x07, 0x8f, 0x35,
+ 0x67, 0x92, 0xe3, 0xe9, 0x7f, 0xa8, 0x61, 0x43,
+ 0x9e, 0x25, 0x4f, 0x33, 0x76, 0x13, 0x6e, 0x12,
+ 0xb9, 0xdd, 0xa4, 0x7c, 0x08, 0x9f, 0x7c, 0xe7,
+ 0x0a, 0x8d, 0x84, 0x06, 0xa4, 0x33, 0x17, 0x34,
+ 0x5e, 0x10, 0x7c, 0xc0, 0xa8, 0x3d, 0x1f, 0x42,
+ 0x20, 0x51, 0x65, 0x5d, 0x09, 0xc3, 0xaa, 0xc0,
+ 0xc8, 0x0d, 0xf0, 0x79, 0xbc, 0x20, 0x1b, 0x95,
+ 0xe7, 0x06, 0x7d, 0x47, 0x20, 0x03, 0x1a, 0x74,
+ 0xdd, 0xe2, 0xd4, 0xae, 0x38, 0x71, 0x9b, 0xf5,
+ 0x80, 0xec, 0x08, 0x4e, 0x56, 0xba, 0x76, 0x12,
+ 0x1a, 0xdf, 0x48, 0xf3, 0xae, 0xb3, 0xe6, 0xe6,
+ 0xbe, 0xc0, 0x91, 0x2e, 0x01, 0xb3, 0x01, 0x86,
+ 0xa2, 0xb9, 0x52, 0xd1, 0x21, 0xae, 0xd4, 0x97,
+ 0x1d, 0xef, 0x41, 0x12, 0x95, 0x3d, 0x48, 0x45,
+ 0x1c, 0x56, 0x32, 0x8f, 0xb8, 0x43, 0xbb, 0x19,
+ 0xf3, 0xca, 0xe9, 0xeb, 0x6d, 0x84, 0xbe, 0x86,
+ 0x06, 0xe2, 0x36, 0xb2, 0x62, 0x9d, 0xd3, 0x4c,
+ 0x48, 0x18, 0x54, 0x13, 0x4e, 0xcf, 0xfd, 0xba,
+ 0x84, 0xb9, 0x30, 0x53, 0xcf, 0xfb, 0xb9, 0x29,
+ 0x8f, 0xdc, 0x9f, 0xef, 0x60, 0x0b, 0x64, 0xf6,
+ 0x8b, 0xee, 0xa6, 0x91, 0xc2, 0x41, 0x6c, 0xf6,
+ 0xfa, 0x79, 0x67, 0x4b, 0xc1, 0x3f, 0xaf, 0x09,
+ 0x81, 0xd4, 0x5d, 0xcb, 0x09, 0xdf, 0x36, 0x31,
+ 0xc0, 0x14, 0x3c, 0x7c, 0x0e, 0x65, 0x95, 0x99,
+ 0x6d, 0xa3, 0xf4, 0xd7, 0x38, 0xee, 0x1a, 0x2b,
+ 0x37, 0xe2, 0xa4, 0x3b, 0x4b, 0xd0, 0x65, 0xca,
+ 0xf8, 0xc3, 0xe8, 0x15, 0x20, 0xef, 0xf2, 0x00,
+ 0xfd, 0x01, 0x09, 0xc5, 0xc8, 0x17, 0x04, 0x93,
+ 0xd0, 0x93, 0x03, 0x55, 0xc5, 0xfe, 0x32, 0xa3,
+ 0x3e, 0x28, 0x2d, 0x3b, 0x93, 0x8a, 0xcc, 0x07,
+ 0x72, 0x80, 0x8b, 0x74, 0x16, 0x24, 0xbb, 0xda,
+ 0x94, 0x39, 0x30, 0x8f, 0xb1, 0xcd, 0x4a, 0x90,
+ 0x92, 0x7c, 0x14, 0x8f, 0x95, 0x4e, 0xac, 0x9b,
+ 0xd8, 0x8f, 0x1a, 0x87, 0xa4, 0x32, 0x27, 0x8a,
+ 0xba, 0xf7, 0x41, 0xcf, 0x84, 0x37, 0x19, 0xe6,
+ 0x06, 0xf5, 0x0e, 0xcf, 0x36, 0xf5, 0x9e, 0x6c,
+ 0xde, 0xbc, 0xff, 0x64, 0x7e, 0x4e, 0x59, 0x57,
+ 0x48, 0xfe, 0x14, 0xf7, 0x9c, 0x93, 0x5d, 0x15,
+ 0xad, 0xcc, 0x11, 0xb1, 0x17, 0x18, 0xb2, 0x7e,
+ 0xcc, 0xab, 0xe9, 0xce, 0x7d, 0x77, 0x5b, 0x51,
+ 0x1b, 0x1e, 0x20, 0xa8, 0x32, 0x06, 0x0e, 0x75,
+ 0x93, 0xac, 0xdb, 0x35, 0x37, 0x1f, 0xe9, 0x19,
+ 0x1d, 0xb4, 0x71, 0x97, 0xd6, 0x4e, 0x2c, 0x08,
+ 0xa5, 0x13, 0xf9, 0x0e, 0x7e, 0x78, 0x6e, 0x14,
+ 0xe0, 0xa9, 0xb9, 0x96, 0x4c, 0x80, 0x82, 0xba,
+ 0x17, 0xb3, 0x9d, 0x69, 0xb0, 0x84, 0x46, 0xff,
+ 0xf9, 0x52, 0x79, 0x94, 0x58, 0x3a, 0x62, 0x90,
+ 0x15, 0x35, 0x71, 0x10, 0x37, 0xed, 0xa1, 0x8e,
+ 0x53, 0x6e, 0xf4, 0x26, 0x57, 0x93, 0x15, 0x93,
+ 0xf6, 0x81, 0x2c, 0x5a, 0x10, 0xda, 0x92, 0xad,
+ 0x2f, 0xdb, 0x28, 0x31, 0x2d, 0x55, 0x04, 0xd2,
+ 0x06, 0x28, 0x8c, 0x1e, 0xdc, 0xea, 0x54, 0xac,
+ 0xff, 0xb7, 0x6c, 0x30, 0x15, 0xd4, 0xb4, 0x0d,
+ 0x00, 0x93, 0x57, 0xdd, 0xd2, 0x07, 0x07, 0x06,
+ 0xd9, 0x43, 0x9b, 0xcd, 0x3a, 0xf4, 0x7d, 0x4c,
+ 0x36, 0x5d, 0x23, 0xa2, 0xcc, 0x57, 0x40, 0x91,
+ 0xe9, 0x2c, 0x2f, 0x2c, 0xd5, 0x30, 0x9b, 0x17,
+ 0xb0, 0xc9, 0xf7, 0xa7, 0x2f, 0xd1, 0x93, 0x20,
+ 0x6b, 0xc6, 0xc1, 0xe4, 0x6f, 0xcb, 0xd1, 0xe7,
+ 0x09, 0x0f, 0x9e, 0xdc, 0xaa, 0x9f, 0x2f, 0xdf,
+ 0x56, 0x9f, 0xd4, 0x33, 0x04, 0xaf, 0xd3, 0x6c,
+ 0x58, 0x61, 0xf0, 0x30, 0xec, 0xf2, 0x7f, 0xf2,
+ 0x9c, 0xdf, 0x39, 0xbb, 0x6f, 0xa2, 0x8c, 0x7e,
+ 0xc4, 0x22, 0x51, 0x71, 0xc0, 0x4d, 0x14, 0x1a,
+ 0xc4, 0xcd, 0x04, 0xd9, 0x87, 0x08, 0x50, 0x05,
+ 0xcc, 0xaf, 0xf6, 0xf0, 0x8f, 0x92, 0x54, 0x58,
+ 0xc2, 0xc7, 0x09, 0x7a, 0x59, 0x02, 0x05, 0xe8,
+ 0xb0, 0x86, 0xd9, 0xbf, 0x7b, 0x35, 0x51, 0x4d,
+ 0xaf, 0x08, 0x97, 0x2c, 0x65, 0xda, 0x2a, 0x71,
+ 0x3a, 0xa8, 0x51, 0xcc, 0xf2, 0x73, 0x27, 0xc3,
+ 0xfd, 0x62, 0xcf, 0xe3, 0xb2, 0xca, 0xcb, 0xbe,
+ 0x1a, 0x0a, 0xa1, 0x34, 0x7b, 0x77, 0xc4, 0x62,
+ 0x68, 0x78, 0x5f, 0x94, 0x07, 0x04, 0x65, 0x16,
+ 0x4b, 0x61, 0xcb, 0xff, 0x75, 0x26, 0x50, 0x66,
+ 0x1f, 0x6e, 0x93, 0xf8, 0xc5, 0x51, 0xeb, 0xa4,
+ 0x4a, 0x48, 0x68, 0x6b, 0xe2, 0x5e, 0x44, 0xb2,
+ 0x50, 0x2c, 0x6c, 0xae, 0x79, 0x4e, 0x66, 0x35,
+ 0x81, 0x50, 0xac, 0xbc, 0x3f, 0xb1, 0x0c, 0xf3,
+ 0x05, 0x3c, 0x4a, 0xa3, 0x6c, 0x2a, 0x79, 0xb4,
+ 0xb7, 0xab, 0xca, 0xc7, 0x9b, 0x8e, 0xcd, 0x5f,
+ 0x11, 0x03, 0xcb, 0x30, 0xa3, 0xab, 0xda, 0xfe,
+ 0x64, 0xb9, 0xbb, 0xd8, 0x5e, 0x3a, 0x1a, 0x56,
+ 0xe5, 0x05, 0x48, 0x90, 0x1e, 0x61, 0x69, 0x1b,
+ 0x22, 0xe6, 0x1a, 0x3c, 0x75, 0xad, 0x1f, 0x37,
+ 0x28, 0xdc, 0xe4, 0x6d, 0xbd, 0x42, 0xdc, 0xd3,
+ 0xc8, 0xb6, 0x1c, 0x48, 0xfe, 0x94, 0x77, 0x7f,
+ 0xbd, 0x62, 0xac, 0xa3, 0x47, 0x27, 0xcf, 0x5f,
+ 0xd9, 0xdb, 0xaf, 0xec, 0xf7, 0x5e, 0xc1, 0xb0,
+ 0x9d, 0x01, 0x26, 0x99, 0x7e, 0x8f, 0x03, 0x70,
+ 0xb5, 0x42, 0xbe, 0x67, 0x28, 0x1b, 0x7c, 0xbd,
+ 0x61, 0x21, 0x97, 0xcc, 0x5c, 0xe1, 0x97, 0x8f,
+ 0x8d, 0xde, 0x2b, 0xaa, 0xa7, 0x71, 0x1d, 0x1e,
+ 0x02, 0x73, 0x70, 0x58, 0x32, 0x5b, 0x1d, 0x67,
+ 0x3d, 0xe0, 0x74, 0x4f, 0x03, 0xf2, 0x70, 0x51,
+ 0x79, 0xf1, 0x61, 0x70, 0x15, 0x74, 0x9d, 0x23,
+ 0x89, 0xde, 0xac, 0xfd, 0xde, 0xd0, 0x1f, 0xc3,
+ 0x87, 0x44, 0x35, 0x4b, 0xe5, 0xb0, 0x60, 0xc5,
+ 0x22, 0xe4, 0x9e, 0xca, 0xeb, 0xd5, 0x3a, 0x09,
+ 0x45, 0xa4, 0xdb, 0xfa, 0x3f, 0xeb, 0x1b, 0xc7,
+ 0xc8, 0x14, 0x99, 0x51, 0x92, 0x10, 0xed, 0xed,
+ 0x28, 0xe0, 0xa1, 0xf8, 0x26, 0xcf, 0xcd, 0xcb,
+ 0x63, 0xa1, 0x3b, 0xe3, 0xdf, 0x7e, 0xfe, 0xa6,
+ 0xf0, 0x81, 0x9a, 0xbf, 0x55, 0xde, 0x54, 0xd5,
+ 0x56, 0x60, 0x98, 0x10, 0x68, 0xf4, 0x38, 0x96,
+ 0x8e, 0x6f, 0x1d, 0x44, 0x7f, 0xd6, 0x2f, 0xfe,
+ 0x55, 0xfb, 0x0c, 0x7e, 0x67, 0xe2, 0x61, 0x44,
+ 0xed, 0xf2, 0x35, 0x30, 0x5d, 0xe9, 0xc7, 0xd6,
+ 0x6d, 0xe0, 0xa0, 0xed, 0xf3, 0xfc, 0xd8, 0x3e,
+ 0x0a, 0x7b, 0xcd, 0xaf, 0x65, 0x68, 0x18, 0xc0,
+ 0xec, 0x04, 0x1c, 0x74, 0x6d, 0xe2, 0x6e, 0x79,
+ 0xd4, 0x11, 0x2b, 0x62, 0xd5, 0x27, 0xad, 0x4f,
+ 0x01, 0x59, 0x73, 0xcc, 0x6a, 0x53, 0xfb, 0x2d,
+ 0xd5, 0x4e, 0x99, 0x21, 0x65, 0x4d, 0xf5, 0x82,
+ 0xf7, 0xd8, 0x42, 0xce, 0x6f, 0x3d, 0x36, 0x47,
+ 0xf1, 0x05, 0x16, 0xe8, 0x1b, 0x6a, 0x8f, 0x93,
+ 0xf2, 0x8f, 0x37, 0x40, 0x12, 0x28, 0xa3, 0xe6,
+ 0xb9, 0x17, 0x4a, 0x1f, 0xb1, 0xd1, 0x66, 0x69,
+ 0x86, 0xc4, 0xfc, 0x97, 0xae, 0x3f, 0x8f, 0x1e,
+ 0x2b, 0xdf, 0xcd, 0xf9, 0x3c
+};
+static const u8 enc_assoc011[] __initconst = {
+ 0xd6, 0x31, 0xda, 0x5d, 0x42, 0x5e, 0xd7
+};
+static const u8 enc_nonce011[] __initconst = {
+ 0xfd, 0x87, 0xd4, 0xd8, 0x62, 0xfd, 0xec, 0xaa
+};
+static const u8 enc_key011[] __initconst = {
+ 0x35, 0x4e, 0xb5, 0x70, 0x50, 0x42, 0x8a, 0x85,
+ 0xf2, 0xfb, 0xed, 0x7b, 0xd0, 0x9e, 0x97, 0xca,
+ 0xfa, 0x98, 0x66, 0x63, 0xee, 0x37, 0xcc, 0x52,
+ 0xfe, 0xd1, 0xdf, 0x95, 0x15, 0x34, 0x29, 0x38
+};
+
+static const u8 enc_input012[] __initconst = {
+ 0x74, 0xa6, 0x3e, 0xe4, 0xb1, 0xcb, 0xaf, 0xb0,
+ 0x40, 0xe5, 0x0f, 0x9e, 0xf1, 0xf2, 0x89, 0xb5,
+ 0x42, 0x34, 0x8a, 0xa1, 0x03, 0xb7, 0xe9, 0x57,
+ 0x46, 0xbe, 0x20, 0xe4, 0x6e, 0xb0, 0xeb, 0xff,
+ 0xea, 0x07, 0x7e, 0xef, 0xe2, 0x55, 0x9f, 0xe5,
+ 0x78, 0x3a, 0xb7, 0x83, 0xc2, 0x18, 0x40, 0x7b,
+ 0xeb, 0xcd, 0x81, 0xfb, 0x90, 0x12, 0x9e, 0x46,
+ 0xa9, 0xd6, 0x4a, 0xba, 0xb0, 0x62, 0xdb, 0x6b,
+ 0x99, 0xc4, 0xdb, 0x54, 0x4b, 0xb8, 0xa5, 0x71,
+ 0xcb, 0xcd, 0x63, 0x32, 0x55, 0xfb, 0x31, 0xf0,
+ 0x38, 0xf5, 0xbe, 0x78, 0xe4, 0x45, 0xce, 0x1b,
+ 0x6a, 0x5b, 0x0e, 0xf4, 0x16, 0xe4, 0xb1, 0x3d,
+ 0xf6, 0x63, 0x7b, 0xa7, 0x0c, 0xde, 0x6f, 0x8f,
+ 0x74, 0xdf, 0xe0, 0x1e, 0x9d, 0xce, 0x8f, 0x24,
+ 0xef, 0x23, 0x35, 0x33, 0x7b, 0x83, 0x34, 0x23,
+ 0x58, 0x74, 0x14, 0x77, 0x1f, 0xc2, 0x4f, 0x4e,
+ 0xc6, 0x89, 0xf9, 0x52, 0x09, 0x37, 0x64, 0x14,
+ 0xc4, 0x01, 0x6b, 0x9d, 0x77, 0xe8, 0x90, 0x5d,
+ 0xa8, 0x4a, 0x2a, 0xef, 0x5c, 0x7f, 0xeb, 0xbb,
+ 0xb2, 0xc6, 0x93, 0x99, 0x66, 0xdc, 0x7f, 0xd4,
+ 0x9e, 0x2a, 0xca, 0x8d, 0xdb, 0xe7, 0x20, 0xcf,
+ 0xe4, 0x73, 0xae, 0x49, 0x7d, 0x64, 0x0f, 0x0e,
+ 0x28, 0x46, 0xa9, 0xa8, 0x32, 0xe4, 0x0e, 0xf6,
+ 0x51, 0x53, 0xb8, 0x3c, 0xb1, 0xff, 0xa3, 0x33,
+ 0x41, 0x75, 0xff, 0xf1, 0x6f, 0xf1, 0xfb, 0xbb,
+ 0x83, 0x7f, 0x06, 0x9b, 0xe7, 0x1b, 0x0a, 0xe0,
+ 0x5c, 0x33, 0x60, 0x5b, 0xdb, 0x5b, 0xed, 0xfe,
+ 0xa5, 0x16, 0x19, 0x72, 0xa3, 0x64, 0x23, 0x00,
+ 0x02, 0xc7, 0xf3, 0x6a, 0x81, 0x3e, 0x44, 0x1d,
+ 0x79, 0x15, 0x5f, 0x9a, 0xde, 0xe2, 0xfd, 0x1b,
+ 0x73, 0xc1, 0xbc, 0x23, 0xba, 0x31, 0xd2, 0x50,
+ 0xd5, 0xad, 0x7f, 0x74, 0xa7, 0xc9, 0xf8, 0x3e,
+ 0x2b, 0x26, 0x10, 0xf6, 0x03, 0x36, 0x74, 0xe4,
+ 0x0e, 0x6a, 0x72, 0xb7, 0x73, 0x0a, 0x42, 0x28,
+ 0xc2, 0xad, 0x5e, 0x03, 0xbe, 0xb8, 0x0b, 0xa8,
+ 0x5b, 0xd4, 0xb8, 0xba, 0x52, 0x89, 0xb1, 0x9b,
+ 0xc1, 0xc3, 0x65, 0x87, 0xed, 0xa5, 0xf4, 0x86,
+ 0xfd, 0x41, 0x80, 0x91, 0x27, 0x59, 0x53, 0x67,
+ 0x15, 0x78, 0x54, 0x8b, 0x2d, 0x3d, 0xc7, 0xff,
+ 0x02, 0x92, 0x07, 0x5f, 0x7a, 0x4b, 0x60, 0x59,
+ 0x3c, 0x6f, 0x5c, 0xd8, 0xec, 0x95, 0xd2, 0xfe,
+ 0xa0, 0x3b, 0xd8, 0x3f, 0xd1, 0x69, 0xa6, 0xd6,
+ 0x41, 0xb2, 0xf4, 0x4d, 0x12, 0xf4, 0x58, 0x3e,
+ 0x66, 0x64, 0x80, 0x31, 0x9b, 0xa8, 0x4c, 0x8b,
+ 0x07, 0xb2, 0xec, 0x66, 0x94, 0x66, 0x47, 0x50,
+ 0x50, 0x5f, 0x18, 0x0b, 0x0e, 0xd6, 0xc0, 0x39,
+ 0x21, 0x13, 0x9e, 0x33, 0xbc, 0x79, 0x36, 0x02,
+ 0x96, 0x70, 0xf0, 0x48, 0x67, 0x2f, 0x26, 0xe9,
+ 0x6d, 0x10, 0xbb, 0xd6, 0x3f, 0xd1, 0x64, 0x7a,
+ 0x2e, 0xbe, 0x0c, 0x61, 0xf0, 0x75, 0x42, 0x38,
+ 0x23, 0xb1, 0x9e, 0x9f, 0x7c, 0x67, 0x66, 0xd9,
+ 0x58, 0x9a, 0xf1, 0xbb, 0x41, 0x2a, 0x8d, 0x65,
+ 0x84, 0x94, 0xfc, 0xdc, 0x6a, 0x50, 0x64, 0xdb,
+ 0x56, 0x33, 0x76, 0x00, 0x10, 0xed, 0xbe, 0xd2,
+ 0x12, 0xf6, 0xf6, 0x1b, 0xa2, 0x16, 0xde, 0xae,
+ 0x31, 0x95, 0xdd, 0xb1, 0x08, 0x7e, 0x4e, 0xee,
+ 0xe7, 0xf9, 0xa5, 0xfb, 0x5b, 0x61, 0x43, 0x00,
+ 0x40, 0xf6, 0x7e, 0x02, 0x04, 0x32, 0x4e, 0x0c,
+ 0xe2, 0x66, 0x0d, 0xd7, 0x07, 0x98, 0x0e, 0xf8,
+ 0x72, 0x34, 0x6d, 0x95, 0x86, 0xd7, 0xcb, 0x31,
+ 0x54, 0x47, 0xd0, 0x38, 0x29, 0x9c, 0x5a, 0x68,
+ 0xd4, 0x87, 0x76, 0xc9, 0xe7, 0x7e, 0xe3, 0xf4,
+ 0x81, 0x6d, 0x18, 0xcb, 0xc9, 0x05, 0xaf, 0xa0,
+ 0xfb, 0x66, 0xf7, 0xf1, 0x1c, 0xc6, 0x14, 0x11,
+ 0x4f, 0x2b, 0x79, 0x42, 0x8b, 0xbc, 0xac, 0xe7,
+ 0x6c, 0xfe, 0x0f, 0x58, 0xe7, 0x7c, 0x78, 0x39,
+ 0x30, 0xb0, 0x66, 0x2c, 0x9b, 0x6d, 0x3a, 0xe1,
+ 0xcf, 0xc9, 0xa4, 0x0e, 0x6d, 0x6d, 0x8a, 0xa1,
+ 0x3a, 0xe7, 0x28, 0xd4, 0x78, 0x4c, 0xa6, 0xa2,
+ 0x2a, 0xa6, 0x03, 0x30, 0xd7, 0xa8, 0x25, 0x66,
+ 0x87, 0x2f, 0x69, 0x5c, 0x4e, 0xdd, 0xa5, 0x49,
+ 0x5d, 0x37, 0x4a, 0x59, 0xc4, 0xaf, 0x1f, 0xa2,
+ 0xe4, 0xf8, 0xa6, 0x12, 0x97, 0xd5, 0x79, 0xf5,
+ 0xe2, 0x4a, 0x2b, 0x5f, 0x61, 0xe4, 0x9e, 0xe3,
+ 0xee, 0xb8, 0xa7, 0x5b, 0x2f, 0xf4, 0x9e, 0x6c,
+ 0xfb, 0xd1, 0xc6, 0x56, 0x77, 0xba, 0x75, 0xaa,
+ 0x3d, 0x1a, 0xa8, 0x0b, 0xb3, 0x68, 0x24, 0x00,
+ 0x10, 0x7f, 0xfd, 0xd7, 0xa1, 0x8d, 0x83, 0x54,
+ 0x4f, 0x1f, 0xd8, 0x2a, 0xbe, 0x8a, 0x0c, 0x87,
+ 0xab, 0xa2, 0xde, 0xc3, 0x39, 0xbf, 0x09, 0x03,
+ 0xa5, 0xf3, 0x05, 0x28, 0xe1, 0xe1, 0xee, 0x39,
+ 0x70, 0x9c, 0xd8, 0x81, 0x12, 0x1e, 0x02, 0x40,
+ 0xd2, 0x6e, 0xf0, 0xeb, 0x1b, 0x3d, 0x22, 0xc6,
+ 0xe5, 0xe3, 0xb4, 0x5a, 0x98, 0xbb, 0xf0, 0x22,
+ 0x28, 0x8d, 0xe5, 0xd3, 0x16, 0x48, 0x24, 0xa5,
+ 0xe6, 0x66, 0x0c, 0xf9, 0x08, 0xf9, 0x7e, 0x1e,
+ 0xe1, 0x28, 0x26, 0x22, 0xc7, 0xc7, 0x0a, 0x32,
+ 0x47, 0xfa, 0xa3, 0xbe, 0x3c, 0xc4, 0xc5, 0x53,
+ 0x0a, 0xd5, 0x94, 0x4a, 0xd7, 0x93, 0xd8, 0x42,
+ 0x99, 0xb9, 0x0a, 0xdb, 0x56, 0xf7, 0xb9, 0x1c,
+ 0x53, 0x4f, 0xfa, 0xd3, 0x74, 0xad, 0xd9, 0x68,
+ 0xf1, 0x1b, 0xdf, 0x61, 0xc6, 0x5e, 0xa8, 0x48,
+ 0xfc, 0xd4, 0x4a, 0x4c, 0x3c, 0x32, 0xf7, 0x1c,
+ 0x96, 0x21, 0x9b, 0xf9, 0xa3, 0xcc, 0x5a, 0xce,
+ 0xd5, 0xd7, 0x08, 0x24, 0xf6, 0x1c, 0xfd, 0xdd,
+ 0x38, 0xc2, 0x32, 0xe9, 0xb8, 0xe7, 0xb6, 0xfa,
+ 0x9d, 0x45, 0x13, 0x2c, 0x83, 0xfd, 0x4a, 0x69,
+ 0x82, 0xcd, 0xdc, 0xb3, 0x76, 0x0c, 0x9e, 0xd8,
+ 0xf4, 0x1b, 0x45, 0x15, 0xb4, 0x97, 0xe7, 0x58,
+ 0x34, 0xe2, 0x03, 0x29, 0x5a, 0xbf, 0xb6, 0xe0,
+ 0x5d, 0x13, 0xd9, 0x2b, 0xb4, 0x80, 0xb2, 0x45,
+ 0x81, 0x6a, 0x2e, 0x6c, 0x89, 0x7d, 0xee, 0xbb,
+ 0x52, 0xdd, 0x1f, 0x18, 0xe7, 0x13, 0x6b, 0x33,
+ 0x0e, 0xea, 0x36, 0x92, 0x77, 0x7b, 0x6d, 0x9c,
+ 0x5a, 0x5f, 0x45, 0x7b, 0x7b, 0x35, 0x62, 0x23,
+ 0xd1, 0xbf, 0x0f, 0xd0, 0x08, 0x1b, 0x2b, 0x80,
+ 0x6b, 0x7e, 0xf1, 0x21, 0x47, 0xb0, 0x57, 0xd1,
+ 0x98, 0x72, 0x90, 0x34, 0x1c, 0x20, 0x04, 0xff,
+ 0x3d, 0x5c, 0xee, 0x0e, 0x57, 0x5f, 0x6f, 0x24,
+ 0x4e, 0x3c, 0xea, 0xfc, 0xa5, 0xa9, 0x83, 0xc9,
+ 0x61, 0xb4, 0x51, 0x24, 0xf8, 0x27, 0x5e, 0x46,
+ 0x8c, 0xb1, 0x53, 0x02, 0x96, 0x35, 0xba, 0xb8,
+ 0x4c, 0x71, 0xd3, 0x15, 0x59, 0x35, 0x22, 0x20,
+ 0xad, 0x03, 0x9f, 0x66, 0x44, 0x3b, 0x9c, 0x35,
+ 0x37, 0x1f, 0x9b, 0xbb, 0xf3, 0xdb, 0x35, 0x63,
+ 0x30, 0x64, 0xaa, 0xa2, 0x06, 0xa8, 0x5d, 0xbb,
+ 0xe1, 0x9f, 0x70, 0xec, 0x82, 0x11, 0x06, 0x36,
+ 0xec, 0x8b, 0x69, 0x66, 0x24, 0x44, 0xc9, 0x4a,
+ 0x57, 0xbb, 0x9b, 0x78, 0x13, 0xce, 0x9c, 0x0c,
+ 0xba, 0x92, 0x93, 0x63, 0xb8, 0xe2, 0x95, 0x0f,
+ 0x0f, 0x16, 0x39, 0x52, 0xfd, 0x3a, 0x6d, 0x02,
+ 0x4b, 0xdf, 0x13, 0xd3, 0x2a, 0x22, 0xb4, 0x03,
+ 0x7c, 0x54, 0x49, 0x96, 0x68, 0x54, 0x10, 0xfa,
+ 0xef, 0xaa, 0x6c, 0xe8, 0x22, 0xdc, 0x71, 0x16,
+ 0x13, 0x1a, 0xf6, 0x28, 0xe5, 0x6d, 0x77, 0x3d,
+ 0xcd, 0x30, 0x63, 0xb1, 0x70, 0x52, 0xa1, 0xc5,
+ 0x94, 0x5f, 0xcf, 0xe8, 0xb8, 0x26, 0x98, 0xf7,
+ 0x06, 0xa0, 0x0a, 0x70, 0xfa, 0x03, 0x80, 0xac,
+ 0xc1, 0xec, 0xd6, 0x4c, 0x54, 0xd7, 0xfe, 0x47,
+ 0xb6, 0x88, 0x4a, 0xf7, 0x71, 0x24, 0xee, 0xf3,
+ 0xd2, 0xc2, 0x4a, 0x7f, 0xfe, 0x61, 0xc7, 0x35,
+ 0xc9, 0x37, 0x67, 0xcb, 0x24, 0x35, 0xda, 0x7e,
+ 0xca, 0x5f, 0xf3, 0x8d, 0xd4, 0x13, 0x8e, 0xd6,
+ 0xcb, 0x4d, 0x53, 0x8f, 0x53, 0x1f, 0xc0, 0x74,
+ 0xf7, 0x53, 0xb9, 0x5e, 0x23, 0x37, 0xba, 0x6e,
+ 0xe3, 0x9d, 0x07, 0x55, 0x25, 0x7b, 0xe6, 0x2a,
+ 0x64, 0xd1, 0x32, 0xdd, 0x54, 0x1b, 0x4b, 0xc0,
+ 0xe1, 0xd7, 0x69, 0x58, 0xf8, 0x93, 0x29, 0xc4,
+ 0xdd, 0x23, 0x2f, 0xa5, 0xfc, 0x9d, 0x7e, 0xf8,
+ 0xd4, 0x90, 0xcd, 0x82, 0x55, 0xdc, 0x16, 0x16,
+ 0x9f, 0x07, 0x52, 0x9b, 0x9d, 0x25, 0xed, 0x32,
+ 0xc5, 0x7b, 0xdf, 0xf6, 0x83, 0x46, 0x3d, 0x65,
+ 0xb7, 0xef, 0x87, 0x7a, 0x12, 0x69, 0x8f, 0x06,
+ 0x7c, 0x51, 0x15, 0x4a, 0x08, 0xe8, 0xac, 0x9a,
+ 0x0c, 0x24, 0xa7, 0x27, 0xd8, 0x46, 0x2f, 0xe7,
+ 0x01, 0x0e, 0x1c, 0xc6, 0x91, 0xb0, 0x6e, 0x85,
+ 0x65, 0xf0, 0x29, 0x0d, 0x2e, 0x6b, 0x3b, 0xfb,
+ 0x4b, 0xdf, 0xe4, 0x80, 0x93, 0x03, 0x66, 0x46,
+ 0x3e, 0x8a, 0x6e, 0xf3, 0x5e, 0x4d, 0x62, 0x0e,
+ 0x49, 0x05, 0xaf, 0xd4, 0xf8, 0x21, 0x20, 0x61,
+ 0x1d, 0x39, 0x17, 0xf4, 0x61, 0x47, 0x95, 0xfb,
+ 0x15, 0x2e, 0xb3, 0x4f, 0xd0, 0x5d, 0xf5, 0x7d,
+ 0x40, 0xda, 0x90, 0x3c, 0x6b, 0xcb, 0x17, 0x00,
+ 0x13, 0x3b, 0x64, 0x34, 0x1b, 0xf0, 0xf2, 0xe5,
+ 0x3b, 0xb2, 0xc7, 0xd3, 0x5f, 0x3a, 0x44, 0xa6,
+ 0x9b, 0xb7, 0x78, 0x0e, 0x42, 0x5d, 0x4c, 0xc1,
+ 0xe9, 0xd2, 0xcb, 0xb7, 0x78, 0xd1, 0xfe, 0x9a,
+ 0xb5, 0x07, 0xe9, 0xe0, 0xbe, 0xe2, 0x8a, 0xa7,
+ 0x01, 0x83, 0x00, 0x8c, 0x5c, 0x08, 0xe6, 0x63,
+ 0x12, 0x92, 0xb7, 0xb7, 0xa6, 0x19, 0x7d, 0x38,
+ 0x13, 0x38, 0x92, 0x87, 0x24, 0xf9, 0x48, 0xb3,
+ 0x5e, 0x87, 0x6a, 0x40, 0x39, 0x5c, 0x3f, 0xed,
+ 0x8f, 0xee, 0xdb, 0x15, 0x82, 0x06, 0xda, 0x49,
+ 0x21, 0x2b, 0xb5, 0xbf, 0x32, 0x7c, 0x9f, 0x42,
+ 0x28, 0x63, 0xcf, 0xaf, 0x1e, 0xf8, 0xc6, 0xa0,
+ 0xd1, 0x02, 0x43, 0x57, 0x62, 0xec, 0x9b, 0x0f,
+ 0x01, 0x9e, 0x71, 0xd8, 0x87, 0x9d, 0x01, 0xc1,
+ 0x58, 0x77, 0xd9, 0xaf, 0xb1, 0x10, 0x7e, 0xdd,
+ 0xa6, 0x50, 0x96, 0xe5, 0xf0, 0x72, 0x00, 0x6d,
+ 0x4b, 0xf8, 0x2a, 0x8f, 0x19, 0xf3, 0x22, 0x88,
+ 0x11, 0x4a, 0x8b, 0x7c, 0xfd, 0xb7, 0xed, 0xe1,
+ 0xf6, 0x40, 0x39, 0xe0, 0xe9, 0xf6, 0x3d, 0x25,
+ 0xe6, 0x74, 0x3c, 0x58, 0x57, 0x7f, 0xe1, 0x22,
+ 0x96, 0x47, 0x31, 0x91, 0xba, 0x70, 0x85, 0x28,
+ 0x6b, 0x9f, 0x6e, 0x25, 0xac, 0x23, 0x66, 0x2f,
+ 0x29, 0x88, 0x28, 0xce, 0x8c, 0x5c, 0x88, 0x53,
+ 0xd1, 0x3b, 0xcc, 0x6a, 0x51, 0xb2, 0xe1, 0x28,
+ 0x3f, 0x91, 0xb4, 0x0d, 0x00, 0x3a, 0xe3, 0xf8,
+ 0xc3, 0x8f, 0xd7, 0x96, 0x62, 0x0e, 0x2e, 0xfc,
+ 0xc8, 0x6c, 0x77, 0xa6, 0x1d, 0x22, 0xc1, 0xb8,
+ 0xe6, 0x61, 0xd7, 0x67, 0x36, 0x13, 0x7b, 0xbb,
+ 0x9b, 0x59, 0x09, 0xa6, 0xdf, 0xf7, 0x6b, 0xa3,
+ 0x40, 0x1a, 0xf5, 0x4f, 0xb4, 0xda, 0xd3, 0xf3,
+ 0x81, 0x93, 0xc6, 0x18, 0xd9, 0x26, 0xee, 0xac,
+ 0xf0, 0xaa, 0xdf, 0xc5, 0x9c, 0xca, 0xc2, 0xa2,
+ 0xcc, 0x7b, 0x5c, 0x24, 0xb0, 0xbc, 0xd0, 0x6a,
+ 0x4d, 0x89, 0x09, 0xb8, 0x07, 0xfe, 0x87, 0xad,
+ 0x0a, 0xea, 0xb8, 0x42, 0xf9, 0x5e, 0xb3, 0x3e,
+ 0x36, 0x4c, 0xaf, 0x75, 0x9e, 0x1c, 0xeb, 0xbd,
+ 0xbc, 0xbb, 0x80, 0x40, 0xa7, 0x3a, 0x30, 0xbf,
+ 0xa8, 0x44, 0xf4, 0xeb, 0x38, 0xad, 0x29, 0xba,
+ 0x23, 0xed, 0x41, 0x0c, 0xea, 0xd2, 0xbb, 0x41,
+ 0x18, 0xd6, 0xb9, 0xba, 0x65, 0x2b, 0xa3, 0x91,
+ 0x6d, 0x1f, 0xa9, 0xf4, 0xd1, 0x25, 0x8d, 0x4d,
+ 0x38, 0xff, 0x64, 0xa0, 0xec, 0xde, 0xa6, 0xb6,
+ 0x79, 0xab, 0x8e, 0x33, 0x6c, 0x47, 0xde, 0xaf,
+ 0x94, 0xa4, 0xa5, 0x86, 0x77, 0x55, 0x09, 0x92,
+ 0x81, 0x31, 0x76, 0xc7, 0x34, 0x22, 0x89, 0x8e,
+ 0x3d, 0x26, 0x26, 0xd7, 0xfc, 0x1e, 0x16, 0x72,
+ 0x13, 0x33, 0x63, 0xd5, 0x22, 0xbe, 0xb8, 0x04,
+ 0x34, 0x84, 0x41, 0xbb, 0x80, 0xd0, 0x9f, 0x46,
+ 0x48, 0x07, 0xa7, 0xfc, 0x2b, 0x3a, 0x75, 0x55,
+ 0x8c, 0xc7, 0x6a, 0xbd, 0x7e, 0x46, 0x08, 0x84,
+ 0x0f, 0xd5, 0x74, 0xc0, 0x82, 0x8e, 0xaa, 0x61,
+ 0x05, 0x01, 0xb2, 0x47, 0x6e, 0x20, 0x6a, 0x2d,
+ 0x58, 0x70, 0x48, 0x32, 0xa7, 0x37, 0xd2, 0xb8,
+ 0x82, 0x1a, 0x51, 0xb9, 0x61, 0xdd, 0xfd, 0x9d,
+ 0x6b, 0x0e, 0x18, 0x97, 0xf8, 0x45, 0x5f, 0x87,
+ 0x10, 0xcf, 0x34, 0x72, 0x45, 0x26, 0x49, 0x70,
+ 0xe7, 0xa3, 0x78, 0xe0, 0x52, 0x89, 0x84, 0x94,
+ 0x83, 0x82, 0xc2, 0x69, 0x8f, 0xe3, 0xe1, 0x3f,
+ 0x60, 0x74, 0x88, 0xc4, 0xf7, 0x75, 0x2c, 0xfb,
+ 0xbd, 0xb6, 0xc4, 0x7e, 0x10, 0x0a, 0x6c, 0x90,
+ 0x04, 0x9e, 0xc3, 0x3f, 0x59, 0x7c, 0xce, 0x31,
+ 0x18, 0x60, 0x57, 0x73, 0x46, 0x94, 0x7d, 0x06,
+ 0xa0, 0x6d, 0x44, 0xec, 0xa2, 0x0a, 0x9e, 0x05,
+ 0x15, 0xef, 0xca, 0x5c, 0xbf, 0x00, 0xeb, 0xf7,
+ 0x3d, 0x32, 0xd4, 0xa5, 0xef, 0x49, 0x89, 0x5e,
+ 0x46, 0xb0, 0xa6, 0x63, 0x5b, 0x8a, 0x73, 0xae,
+ 0x6f, 0xd5, 0x9d, 0xf8, 0x4f, 0x40, 0xb5, 0xb2,
+ 0x6e, 0xd3, 0xb6, 0x01, 0xa9, 0x26, 0xa2, 0x21,
+ 0xcf, 0x33, 0x7a, 0x3a, 0xa4, 0x23, 0x13, 0xb0,
+ 0x69, 0x6a, 0xee, 0xce, 0xd8, 0x9d, 0x01, 0x1d,
+ 0x50, 0xc1, 0x30, 0x6c, 0xb1, 0xcd, 0xa0, 0xf0,
+ 0xf0, 0xa2, 0x64, 0x6f, 0xbb, 0xbf, 0x5e, 0xe6,
+ 0xab, 0x87, 0xb4, 0x0f, 0x4f, 0x15, 0xaf, 0xb5,
+ 0x25, 0xa1, 0xb2, 0xd0, 0x80, 0x2c, 0xfb, 0xf9,
+ 0xfe, 0xd2, 0x33, 0xbb, 0x76, 0xfe, 0x7c, 0xa8,
+ 0x66, 0xf7, 0xe7, 0x85, 0x9f, 0x1f, 0x85, 0x57,
+ 0x88, 0xe1, 0xe9, 0x63, 0xe4, 0xd8, 0x1c, 0xa1,
+ 0xfb, 0xda, 0x44, 0x05, 0x2e, 0x1d, 0x3a, 0x1c,
+ 0xff, 0xc8, 0x3b, 0xc0, 0xfe, 0xda, 0x22, 0x0b,
+ 0x43, 0xd6, 0x88, 0x39, 0x4c, 0x4a, 0xa6, 0x69,
+ 0x18, 0x93, 0x42, 0x4e, 0xb5, 0xcc, 0x66, 0x0d,
+ 0x09, 0xf8, 0x1e, 0x7c, 0xd3, 0x3c, 0x99, 0x0d,
+ 0x50, 0x1d, 0x62, 0xe9, 0x57, 0x06, 0xbf, 0x19,
+ 0x88, 0xdd, 0xad, 0x7b, 0x4f, 0xf9, 0xc7, 0x82,
+ 0x6d, 0x8d, 0xc8, 0xc4, 0xc5, 0x78, 0x17, 0x20,
+ 0x15, 0xc5, 0x52, 0x41, 0xcf, 0x5b, 0xd6, 0x7f,
+ 0x94, 0x02, 0x41, 0xe0, 0x40, 0x22, 0x03, 0x5e,
+ 0xd1, 0x53, 0xd4, 0x86, 0xd3, 0x2c, 0x9f, 0x0f,
+ 0x96, 0xe3, 0x6b, 0x9a, 0x76, 0x32, 0x06, 0x47,
+ 0x4b, 0x11, 0xb3, 0xdd, 0x03, 0x65, 0xbd, 0x9b,
+ 0x01, 0xda, 0x9c, 0xb9, 0x7e, 0x3f, 0x6a, 0xc4,
+ 0x7b, 0xea, 0xd4, 0x3c, 0xb9, 0xfb, 0x5c, 0x6b,
+ 0x64, 0x33, 0x52, 0xba, 0x64, 0x78, 0x8f, 0xa4,
+ 0xaf, 0x7a, 0x61, 0x8d, 0xbc, 0xc5, 0x73, 0xe9,
+ 0x6b, 0x58, 0x97, 0x4b, 0xbf, 0x63, 0x22, 0xd3,
+ 0x37, 0x02, 0x54, 0xc5, 0xb9, 0x16, 0x4a, 0xf0,
+ 0x19, 0xd8, 0x94, 0x57, 0xb8, 0x8a, 0xb3, 0x16,
+ 0x3b, 0xd0, 0x84, 0x8e, 0x67, 0xa6, 0xa3, 0x7d,
+ 0x78, 0xec, 0x00
+};
+static const u8 enc_output012[] __initconst = {
+ 0x52, 0x34, 0xb3, 0x65, 0x3b, 0xb7, 0xe5, 0xd3,
+ 0xab, 0x49, 0x17, 0x60, 0xd2, 0x52, 0x56, 0xdf,
+ 0xdf, 0x34, 0x56, 0x82, 0xe2, 0xbe, 0xe5, 0xe1,
+ 0x28, 0xd1, 0x4e, 0x5f, 0x4f, 0x01, 0x7d, 0x3f,
+ 0x99, 0x6b, 0x30, 0x6e, 0x1a, 0x7c, 0x4c, 0x8e,
+ 0x62, 0x81, 0xae, 0x86, 0x3f, 0x6b, 0xd0, 0xb5,
+ 0xa9, 0xcf, 0x50, 0xf1, 0x02, 0x12, 0xa0, 0x0b,
+ 0x24, 0xe9, 0xe6, 0x72, 0x89, 0x2c, 0x52, 0x1b,
+ 0x34, 0x38, 0xf8, 0x75, 0x5f, 0xa0, 0x74, 0xe2,
+ 0x99, 0xdd, 0xa6, 0x4b, 0x14, 0x50, 0x4e, 0xf1,
+ 0xbe, 0xd6, 0x9e, 0xdb, 0xb2, 0x24, 0x27, 0x74,
+ 0x12, 0x4a, 0x78, 0x78, 0x17, 0xa5, 0x58, 0x8e,
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+ 0x9b, 0xfd, 0xa0, 0xea, 0xf7, 0x0d, 0xe1, 0xdb,
+ 0x03, 0xf0, 0x31, 0x29, 0xf8, 0xdd, 0x6b, 0x8b,
+ 0x5d, 0xd8, 0x59, 0xa9, 0x29, 0xcf, 0x9a, 0x79,
+ 0x89, 0x19, 0x63, 0x46, 0x09, 0x79, 0x6a, 0x11,
+ 0xda, 0x63, 0x68, 0x48, 0x77, 0x23, 0xfb, 0x7d,
+ 0x3a, 0x43, 0xcb, 0x02, 0x3b, 0x7a, 0x6d, 0x10,
+ 0x2a, 0x9e, 0xac, 0xf1, 0xd4, 0x19, 0xf8, 0x23,
+ 0x64, 0x1d, 0x2c, 0x5f, 0xf2, 0xb0, 0x5c, 0x23,
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+ 0xab, 0x38, 0xfb, 0x55, 0xcd, 0x78, 0x58, 0xd4,
+ 0x7d, 0x43, 0xf6, 0x45, 0x5e, 0x55, 0x8d, 0xb1,
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+ 0xbb, 0xe6, 0xb8, 0x3a, 0x48, 0x71, 0xc7, 0x50,
+ 0x06, 0x16, 0x3a, 0xe6, 0x7c, 0x05, 0xc7, 0xc8,
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+ 0x50, 0x68, 0xdc, 0x28, 0x18, 0xc4, 0x61, 0x38,
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+ 0xd3, 0x31, 0x0f, 0x23, 0xbe, 0x32, 0x5a, 0x75,
+ 0xcf, 0x96, 0xb2, 0xec, 0xb5, 0x32, 0xac, 0x21,
+ 0xd1, 0x82, 0x33, 0xd3, 0x15, 0x74, 0xbd, 0x90,
+ 0xf1, 0x2c, 0xe6, 0x5f, 0x8d, 0xe3, 0x02, 0xe8,
+ 0xe9, 0xc4, 0xca, 0x96, 0xeb, 0x0e, 0xbc, 0x91,
+ 0xf4, 0xb9, 0xea, 0xd9, 0x1b, 0x75, 0xbd, 0xe1,
+ 0xac, 0x2a, 0x05, 0x37, 0x52, 0x9b, 0x1b, 0x3f,
+ 0x5a, 0xdc, 0x21, 0xc3, 0x98, 0xbb, 0xaf, 0xa3,
+ 0xf2, 0x00, 0xbf, 0x0d, 0x30, 0x89, 0x05, 0xcc,
+ 0xa5, 0x76, 0xf5, 0x06, 0xf0, 0xc6, 0x54, 0x8a,
+ 0x5d, 0xd4, 0x1e, 0xc1, 0xf2, 0xce, 0xb0, 0x62,
+ 0xc8, 0xfc, 0x59, 0x42, 0x9a, 0x90, 0x60, 0x55,
+ 0xfe, 0x88, 0xa5, 0x8b, 0xb8, 0x33, 0x0c, 0x23,
+ 0x24, 0x0d, 0x15, 0x70, 0x37, 0x1e, 0x3d, 0xf6,
+ 0xd2, 0xea, 0x92, 0x10, 0xb2, 0xc4, 0x51, 0xac,
+ 0xf2, 0xac, 0xf3, 0x6b, 0x6c, 0xaa, 0xcf, 0x12,
+ 0xc5, 0x6c, 0x90, 0x50, 0xb5, 0x0c, 0xfc, 0x1a,
+ 0x15, 0x52, 0xe9, 0x26, 0xc6, 0x52, 0xa4, 0xe7,
+ 0x81, 0x69, 0xe1, 0xe7, 0x9e, 0x30, 0x01, 0xec,
+ 0x84, 0x89, 0xb2, 0x0d, 0x66, 0xdd, 0xce, 0x28,
+ 0x5c, 0xec, 0x98, 0x46, 0x68, 0x21, 0x9f, 0x88,
+ 0x3f, 0x1f, 0x42, 0x77, 0xce, 0xd0, 0x61, 0xd4,
+ 0x20, 0xa7, 0xff, 0x53, 0xad, 0x37, 0xd0, 0x17,
+ 0x35, 0xc9, 0xfc, 0xba, 0x0a, 0x78, 0x3f, 0xf2,
+ 0xcc, 0x86, 0x89, 0xe8, 0x4b, 0x3c, 0x48, 0x33,
+ 0x09, 0x7f, 0xc6, 0xc0, 0xdd, 0xb8, 0xfd, 0x7a,
+ 0x66, 0x66, 0x65, 0xeb, 0x47, 0xa7, 0x04, 0x28,
+ 0xa3, 0x19, 0x8e, 0xa9, 0xb1, 0x13, 0x67, 0x62,
+ 0x70, 0xcf, 0xd6
+};
+static const u8 enc_assoc012[] __initconst = {
+ 0xb1, 0x69, 0x83, 0x87, 0x30, 0xaa, 0x5d, 0xb8,
+ 0x77, 0xe8, 0x21, 0xff, 0x06, 0x59, 0x35, 0xce,
+ 0x75, 0xfe, 0x38, 0xef, 0xb8, 0x91, 0x43, 0x8c,
+ 0xcf, 0x70, 0xdd, 0x0a, 0x68, 0xbf, 0xd4, 0xbc,
+ 0x16, 0x76, 0x99, 0x36, 0x1e, 0x58, 0x79, 0x5e,
+ 0xd4, 0x29, 0xf7, 0x33, 0x93, 0x48, 0xdb, 0x5f,
+ 0x01, 0xae, 0x9c, 0xb6, 0xe4, 0x88, 0x6d, 0x2b,
+ 0x76, 0x75, 0xe0, 0xf3, 0x74, 0xe2, 0xc9
+};
+static const u8 enc_nonce012[] __initconst = {
+ 0x05, 0xa3, 0x93, 0xed, 0x30, 0xc5, 0xa2, 0x06
+};
+static const u8 enc_key012[] __initconst = {
+ 0xb3, 0x35, 0x50, 0x03, 0x54, 0x2e, 0x40, 0x5e,
+ 0x8f, 0x59, 0x8e, 0xc5, 0x90, 0xd5, 0x27, 0x2d,
+ 0xba, 0x29, 0x2e, 0xcb, 0x1b, 0x70, 0x44, 0x1e,
+ 0x65, 0x91, 0x6e, 0x2a, 0x79, 0x22, 0xda, 0x64
+};
+
+/* wycheproof - rfc7539 */
+static const u8 enc_input013[] __initconst = {
+ 0x4c, 0x61, 0x64, 0x69, 0x65, 0x73, 0x20, 0x61,
+ 0x6e, 0x64, 0x20, 0x47, 0x65, 0x6e, 0x74, 0x6c,
+ 0x65, 0x6d, 0x65, 0x6e, 0x20, 0x6f, 0x66, 0x20,
+ 0x74, 0x68, 0x65, 0x20, 0x63, 0x6c, 0x61, 0x73,
+ 0x73, 0x20, 0x6f, 0x66, 0x20, 0x27, 0x39, 0x39,
+ 0x3a, 0x20, 0x49, 0x66, 0x20, 0x49, 0x20, 0x63,
+ 0x6f, 0x75, 0x6c, 0x64, 0x20, 0x6f, 0x66, 0x66,
+ 0x65, 0x72, 0x20, 0x79, 0x6f, 0x75, 0x20, 0x6f,
+ 0x6e, 0x6c, 0x79, 0x20, 0x6f, 0x6e, 0x65, 0x20,
+ 0x74, 0x69, 0x70, 0x20, 0x66, 0x6f, 0x72, 0x20,
+ 0x74, 0x68, 0x65, 0x20, 0x66, 0x75, 0x74, 0x75,
+ 0x72, 0x65, 0x2c, 0x20, 0x73, 0x75, 0x6e, 0x73,
+ 0x63, 0x72, 0x65, 0x65, 0x6e, 0x20, 0x77, 0x6f,
+ 0x75, 0x6c, 0x64, 0x20, 0x62, 0x65, 0x20, 0x69,
+ 0x74, 0x2e
+};
+static const u8 enc_output013[] __initconst = {
+ 0xd3, 0x1a, 0x8d, 0x34, 0x64, 0x8e, 0x60, 0xdb,
+ 0x7b, 0x86, 0xaf, 0xbc, 0x53, 0xef, 0x7e, 0xc2,
+ 0xa4, 0xad, 0xed, 0x51, 0x29, 0x6e, 0x08, 0xfe,
+ 0xa9, 0xe2, 0xb5, 0xa7, 0x36, 0xee, 0x62, 0xd6,
+ 0x3d, 0xbe, 0xa4, 0x5e, 0x8c, 0xa9, 0x67, 0x12,
+ 0x82, 0xfa, 0xfb, 0x69, 0xda, 0x92, 0x72, 0x8b,
+ 0x1a, 0x71, 0xde, 0x0a, 0x9e, 0x06, 0x0b, 0x29,
+ 0x05, 0xd6, 0xa5, 0xb6, 0x7e, 0xcd, 0x3b, 0x36,
+ 0x92, 0xdd, 0xbd, 0x7f, 0x2d, 0x77, 0x8b, 0x8c,
+ 0x98, 0x03, 0xae, 0xe3, 0x28, 0x09, 0x1b, 0x58,
+ 0xfa, 0xb3, 0x24, 0xe4, 0xfa, 0xd6, 0x75, 0x94,
+ 0x55, 0x85, 0x80, 0x8b, 0x48, 0x31, 0xd7, 0xbc,
+ 0x3f, 0xf4, 0xde, 0xf0, 0x8e, 0x4b, 0x7a, 0x9d,
+ 0xe5, 0x76, 0xd2, 0x65, 0x86, 0xce, 0xc6, 0x4b,
+ 0x61, 0x16, 0x1a, 0xe1, 0x0b, 0x59, 0x4f, 0x09,
+ 0xe2, 0x6a, 0x7e, 0x90, 0x2e, 0xcb, 0xd0, 0x60,
+ 0x06, 0x91
+};
+static const u8 enc_assoc013[] __initconst = {
+ 0x50, 0x51, 0x52, 0x53, 0xc0, 0xc1, 0xc2, 0xc3,
+ 0xc4, 0xc5, 0xc6, 0xc7
+};
+static const u8 enc_nonce013[] __initconst = {
+ 0x07, 0x00, 0x00, 0x00, 0x40, 0x41, 0x42, 0x43,
+ 0x44, 0x45, 0x46, 0x47
+};
+static const u8 enc_key013[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - misc */
+static const u8 enc_input014[] __initconst = { };
+static const u8 enc_output014[] __initconst = {
+ 0x76, 0xac, 0xb3, 0x42, 0xcf, 0x31, 0x66, 0xa5,
+ 0xb6, 0x3c, 0x0c, 0x0e, 0xa1, 0x38, 0x3c, 0x8d
+};
+static const u8 enc_assoc014[] __initconst = { };
+static const u8 enc_nonce014[] __initconst = {
+ 0x4d, 0xa5, 0xbf, 0x8d, 0xfd, 0x58, 0x52, 0xc1,
+ 0xea, 0x12, 0x37, 0x9d
+};
+static const u8 enc_key014[] __initconst = {
+ 0x80, 0xba, 0x31, 0x92, 0xc8, 0x03, 0xce, 0x96,
+ 0x5e, 0xa3, 0x71, 0xd5, 0xff, 0x07, 0x3c, 0xf0,
+ 0xf4, 0x3b, 0x6a, 0x2a, 0xb5, 0x76, 0xb2, 0x08,
+ 0x42, 0x6e, 0x11, 0x40, 0x9c, 0x09, 0xb9, 0xb0
+};
+
+/* wycheproof - misc */
+static const u8 enc_input015[] __initconst = { };
+static const u8 enc_output015[] __initconst = {
+ 0x90, 0x6f, 0xa6, 0x28, 0x4b, 0x52, 0xf8, 0x7b,
+ 0x73, 0x59, 0xcb, 0xaa, 0x75, 0x63, 0xc7, 0x09
+};
+static const u8 enc_assoc015[] __initconst = {
+ 0xbd, 0x50, 0x67, 0x64, 0xf2, 0xd2, 0xc4, 0x10
+};
+static const u8 enc_nonce015[] __initconst = {
+ 0xa9, 0x2e, 0xf0, 0xac, 0x99, 0x1d, 0xd5, 0x16,
+ 0xa3, 0xc6, 0xf6, 0x89
+};
+static const u8 enc_key015[] __initconst = {
+ 0x7a, 0x4c, 0xd7, 0x59, 0x17, 0x2e, 0x02, 0xeb,
+ 0x20, 0x4d, 0xb2, 0xc3, 0xf5, 0xc7, 0x46, 0x22,
+ 0x7d, 0xf5, 0x84, 0xfc, 0x13, 0x45, 0x19, 0x63,
+ 0x91, 0xdb, 0xb9, 0x57, 0x7a, 0x25, 0x07, 0x42
+};
+
+/* wycheproof - misc */
+static const u8 enc_input016[] __initconst = {
+ 0x2a
+};
+static const u8 enc_output016[] __initconst = {
+ 0x3a, 0xca, 0xc2, 0x7d, 0xec, 0x09, 0x68, 0x80,
+ 0x1e, 0x9f, 0x6e, 0xde, 0xd6, 0x9d, 0x80, 0x75,
+ 0x22
+};
+static const u8 enc_assoc016[] __initconst = { };
+static const u8 enc_nonce016[] __initconst = {
+ 0x99, 0xe2, 0x3e, 0xc4, 0x89, 0x85, 0xbc, 0xcd,
+ 0xee, 0xab, 0x60, 0xf1
+};
+static const u8 enc_key016[] __initconst = {
+ 0xcc, 0x56, 0xb6, 0x80, 0x55, 0x2e, 0xb7, 0x50,
+ 0x08, 0xf5, 0x48, 0x4b, 0x4c, 0xb8, 0x03, 0xfa,
+ 0x50, 0x63, 0xeb, 0xd6, 0xea, 0xb9, 0x1f, 0x6a,
+ 0xb6, 0xae, 0xf4, 0x91, 0x6a, 0x76, 0x62, 0x73
+};
+
+/* wycheproof - misc */
+static const u8 enc_input017[] __initconst = {
+ 0x51
+};
+static const u8 enc_output017[] __initconst = {
+ 0xc4, 0x16, 0x83, 0x10, 0xca, 0x45, 0xb1, 0xf7,
+ 0xc6, 0x6c, 0xad, 0x4e, 0x99, 0xe4, 0x3f, 0x72,
+ 0xb9
+};
+static const u8 enc_assoc017[] __initconst = {
+ 0x91, 0xca, 0x6c, 0x59, 0x2c, 0xbc, 0xca, 0x53
+};
+static const u8 enc_nonce017[] __initconst = {
+ 0xab, 0x0d, 0xca, 0x71, 0x6e, 0xe0, 0x51, 0xd2,
+ 0x78, 0x2f, 0x44, 0x03
+};
+static const u8 enc_key017[] __initconst = {
+ 0x46, 0xf0, 0x25, 0x49, 0x65, 0xf7, 0x69, 0xd5,
+ 0x2b, 0xdb, 0x4a, 0x70, 0xb4, 0x43, 0x19, 0x9f,
+ 0x8e, 0xf2, 0x07, 0x52, 0x0d, 0x12, 0x20, 0xc5,
+ 0x5e, 0x4b, 0x70, 0xf0, 0xfd, 0xa6, 0x20, 0xee
+};
+
+/* wycheproof - misc */
+static const u8 enc_input018[] __initconst = {
+ 0x5c, 0x60
+};
+static const u8 enc_output018[] __initconst = {
+ 0x4d, 0x13, 0x91, 0xe8, 0xb6, 0x1e, 0xfb, 0x39,
+ 0xc1, 0x22, 0x19, 0x54, 0x53, 0x07, 0x7b, 0x22,
+ 0xe5, 0xe2
+};
+static const u8 enc_assoc018[] __initconst = { };
+static const u8 enc_nonce018[] __initconst = {
+ 0x46, 0x1a, 0xf1, 0x22, 0xe9, 0xf2, 0xe0, 0x34,
+ 0x7e, 0x03, 0xf2, 0xdb
+};
+static const u8 enc_key018[] __initconst = {
+ 0x2f, 0x7f, 0x7e, 0x4f, 0x59, 0x2b, 0xb3, 0x89,
+ 0x19, 0x49, 0x89, 0x74, 0x35, 0x07, 0xbf, 0x3e,
+ 0xe9, 0xcb, 0xde, 0x17, 0x86, 0xb6, 0x69, 0x5f,
+ 0xe6, 0xc0, 0x25, 0xfd, 0x9b, 0xa4, 0xc1, 0x00
+};
+
+/* wycheproof - misc */
+static const u8 enc_input019[] __initconst = {
+ 0xdd, 0xf2
+};
+static const u8 enc_output019[] __initconst = {
+ 0xb6, 0x0d, 0xea, 0xd0, 0xfd, 0x46, 0x97, 0xec,
+ 0x2e, 0x55, 0x58, 0x23, 0x77, 0x19, 0xd0, 0x24,
+ 0x37, 0xa2
+};
+static const u8 enc_assoc019[] __initconst = {
+ 0x88, 0x36, 0x4f, 0xc8, 0x06, 0x05, 0x18, 0xbf
+};
+static const u8 enc_nonce019[] __initconst = {
+ 0x61, 0x54, 0x6b, 0xa5, 0xf1, 0x72, 0x05, 0x90,
+ 0xb6, 0x04, 0x0a, 0xc6
+};
+static const u8 enc_key019[] __initconst = {
+ 0xc8, 0x83, 0x3d, 0xce, 0x5e, 0xa9, 0xf2, 0x48,
+ 0xaa, 0x20, 0x30, 0xea, 0xcf, 0xe7, 0x2b, 0xff,
+ 0xe6, 0x9a, 0x62, 0x0c, 0xaf, 0x79, 0x33, 0x44,
+ 0xe5, 0x71, 0x8f, 0xe0, 0xd7, 0xab, 0x1a, 0x58
+};
+
+/* wycheproof - misc */
+static const u8 enc_input020[] __initconst = {
+ 0xab, 0x85, 0xe9, 0xc1, 0x57, 0x17, 0x31
+};
+static const u8 enc_output020[] __initconst = {
+ 0x5d, 0xfe, 0x34, 0x40, 0xdb, 0xb3, 0xc3, 0xed,
+ 0x7a, 0x43, 0x4e, 0x26, 0x02, 0xd3, 0x94, 0x28,
+ 0x1e, 0x0a, 0xfa, 0x9f, 0xb7, 0xaa, 0x42
+};
+static const u8 enc_assoc020[] __initconst = { };
+static const u8 enc_nonce020[] __initconst = {
+ 0x3c, 0x4e, 0x65, 0x4d, 0x66, 0x3f, 0xa4, 0x59,
+ 0x6d, 0xc5, 0x5b, 0xb7
+};
+static const u8 enc_key020[] __initconst = {
+ 0x55, 0x56, 0x81, 0x58, 0xd3, 0xa6, 0x48, 0x3f,
+ 0x1f, 0x70, 0x21, 0xea, 0xb6, 0x9b, 0x70, 0x3f,
+ 0x61, 0x42, 0x51, 0xca, 0xdc, 0x1a, 0xf5, 0xd3,
+ 0x4a, 0x37, 0x4f, 0xdb, 0xfc, 0x5a, 0xda, 0xc7
+};
+
+/* wycheproof - misc */
+static const u8 enc_input021[] __initconst = {
+ 0x4e, 0xe5, 0xcd, 0xa2, 0x0d, 0x42, 0x90
+};
+static const u8 enc_output021[] __initconst = {
+ 0x4b, 0xd4, 0x72, 0x12, 0x94, 0x1c, 0xe3, 0x18,
+ 0x5f, 0x14, 0x08, 0xee, 0x7f, 0xbf, 0x18, 0xf5,
+ 0xab, 0xad, 0x6e, 0x22, 0x53, 0xa1, 0xba
+};
+static const u8 enc_assoc021[] __initconst = {
+ 0x84, 0xe4, 0x6b, 0xe8, 0xc0, 0x91, 0x90, 0x53
+};
+static const u8 enc_nonce021[] __initconst = {
+ 0x58, 0x38, 0x93, 0x75, 0xc6, 0x9e, 0xe3, 0x98,
+ 0xde, 0x94, 0x83, 0x96
+};
+static const u8 enc_key021[] __initconst = {
+ 0xe3, 0xc0, 0x9e, 0x7f, 0xab, 0x1a, 0xef, 0xb5,
+ 0x16, 0xda, 0x6a, 0x33, 0x02, 0x2a, 0x1d, 0xd4,
+ 0xeb, 0x27, 0x2c, 0x80, 0xd5, 0x40, 0xc5, 0xda,
+ 0x52, 0xa7, 0x30, 0xf3, 0x4d, 0x84, 0x0d, 0x7f
+};
+
+/* wycheproof - misc */
+static const u8 enc_input022[] __initconst = {
+ 0xbe, 0x33, 0x08, 0xf7, 0x2a, 0x2c, 0x6a, 0xed
+};
+static const u8 enc_output022[] __initconst = {
+ 0x8e, 0x94, 0x39, 0xa5, 0x6e, 0xee, 0xc8, 0x17,
+ 0xfb, 0xe8, 0xa6, 0xed, 0x8f, 0xab, 0xb1, 0x93,
+ 0x75, 0x39, 0xdd, 0x6c, 0x00, 0xe9, 0x00, 0x21
+};
+static const u8 enc_assoc022[] __initconst = { };
+static const u8 enc_nonce022[] __initconst = {
+ 0x4f, 0x07, 0xaf, 0xed, 0xfd, 0xc3, 0xb6, 0xc2,
+ 0x36, 0x18, 0x23, 0xd3
+};
+static const u8 enc_key022[] __initconst = {
+ 0x51, 0xe4, 0xbf, 0x2b, 0xad, 0x92, 0xb7, 0xaf,
+ 0xf1, 0xa4, 0xbc, 0x05, 0x55, 0x0b, 0xa8, 0x1d,
+ 0xf4, 0xb9, 0x6f, 0xab, 0xf4, 0x1c, 0x12, 0xc7,
+ 0xb0, 0x0e, 0x60, 0xe4, 0x8d, 0xb7, 0xe1, 0x52
+};
+
+/* wycheproof - misc */
+static const u8 enc_input023[] __initconst = {
+ 0xa4, 0xc9, 0xc2, 0x80, 0x1b, 0x71, 0xf7, 0xdf
+};
+static const u8 enc_output023[] __initconst = {
+ 0xb9, 0xb9, 0x10, 0x43, 0x3a, 0xf0, 0x52, 0xb0,
+ 0x45, 0x30, 0xf5, 0x1a, 0xee, 0xe0, 0x24, 0xe0,
+ 0xa4, 0x45, 0xa6, 0x32, 0x8f, 0xa6, 0x7a, 0x18
+};
+static const u8 enc_assoc023[] __initconst = {
+ 0x66, 0xc0, 0xae, 0x70, 0x07, 0x6c, 0xb1, 0x4d
+};
+static const u8 enc_nonce023[] __initconst = {
+ 0xb4, 0xea, 0x66, 0x6e, 0xe1, 0x19, 0x56, 0x33,
+ 0x66, 0x48, 0x4a, 0x78
+};
+static const u8 enc_key023[] __initconst = {
+ 0x11, 0x31, 0xc1, 0x41, 0x85, 0x77, 0xa0, 0x54,
+ 0xde, 0x7a, 0x4a, 0xc5, 0x51, 0x95, 0x0f, 0x1a,
+ 0x05, 0x3f, 0x9a, 0xe4, 0x6e, 0x5b, 0x75, 0xfe,
+ 0x4a, 0xbd, 0x56, 0x08, 0xd7, 0xcd, 0xda, 0xdd
+};
+
+/* wycheproof - misc */
+static const u8 enc_input024[] __initconst = {
+ 0x42, 0xba, 0xae, 0x59, 0x78, 0xfe, 0xaf, 0x5c,
+ 0x36, 0x8d, 0x14, 0xe0
+};
+static const u8 enc_output024[] __initconst = {
+ 0xff, 0x7d, 0xc2, 0x03, 0xb2, 0x6c, 0x46, 0x7a,
+ 0x6b, 0x50, 0xdb, 0x33, 0x57, 0x8c, 0x0f, 0x27,
+ 0x58, 0xc2, 0xe1, 0x4e, 0x36, 0xd4, 0xfc, 0x10,
+ 0x6d, 0xcb, 0x29, 0xb4
+};
+static const u8 enc_assoc024[] __initconst = { };
+static const u8 enc_nonce024[] __initconst = {
+ 0x9a, 0x59, 0xfc, 0xe2, 0x6d, 0xf0, 0x00, 0x5e,
+ 0x07, 0x53, 0x86, 0x56
+};
+static const u8 enc_key024[] __initconst = {
+ 0x99, 0xb6, 0x2b, 0xd5, 0xaf, 0xbe, 0x3f, 0xb0,
+ 0x15, 0xbd, 0xe9, 0x3f, 0x0a, 0xbf, 0x48, 0x39,
+ 0x57, 0xa1, 0xc3, 0xeb, 0x3c, 0xa5, 0x9c, 0xb5,
+ 0x0b, 0x39, 0xf7, 0xf8, 0xa9, 0xcc, 0x51, 0xbe
+};
+
+/* wycheproof - misc */
+static const u8 enc_input025[] __initconst = {
+ 0xfd, 0xc8, 0x5b, 0x94, 0xa4, 0xb2, 0xa6, 0xb7,
+ 0x59, 0xb1, 0xa0, 0xda
+};
+static const u8 enc_output025[] __initconst = {
+ 0x9f, 0x88, 0x16, 0xde, 0x09, 0x94, 0xe9, 0x38,
+ 0xd9, 0xe5, 0x3f, 0x95, 0xd0, 0x86, 0xfc, 0x6c,
+ 0x9d, 0x8f, 0xa9, 0x15, 0xfd, 0x84, 0x23, 0xa7,
+ 0xcf, 0x05, 0x07, 0x2f
+};
+static const u8 enc_assoc025[] __initconst = {
+ 0xa5, 0x06, 0xe1, 0xa5, 0xc6, 0x90, 0x93, 0xf9
+};
+static const u8 enc_nonce025[] __initconst = {
+ 0x58, 0xdb, 0xd4, 0xad, 0x2c, 0x4a, 0xd3, 0x5d,
+ 0xd9, 0x06, 0xe9, 0xce
+};
+static const u8 enc_key025[] __initconst = {
+ 0x85, 0xf3, 0x5b, 0x62, 0x82, 0xcf, 0xf4, 0x40,
+ 0xbc, 0x10, 0x20, 0xc8, 0x13, 0x6f, 0xf2, 0x70,
+ 0x31, 0x11, 0x0f, 0xa6, 0x3e, 0xc1, 0x6f, 0x1e,
+ 0x82, 0x51, 0x18, 0xb0, 0x06, 0xb9, 0x12, 0x57
+};
+
+/* wycheproof - misc */
+static const u8 enc_input026[] __initconst = {
+ 0x51, 0xf8, 0xc1, 0xf7, 0x31, 0xea, 0x14, 0xac,
+ 0xdb, 0x21, 0x0a, 0x6d, 0x97, 0x3e, 0x07
+};
+static const u8 enc_output026[] __initconst = {
+ 0x0b, 0x29, 0x63, 0x8e, 0x1f, 0xbd, 0xd6, 0xdf,
+ 0x53, 0x97, 0x0b, 0xe2, 0x21, 0x00, 0x42, 0x2a,
+ 0x91, 0x34, 0x08, 0x7d, 0x67, 0xa4, 0x6e, 0x79,
+ 0x17, 0x8d, 0x0a, 0x93, 0xf5, 0xe1, 0xd2
+};
+static const u8 enc_assoc026[] __initconst = { };
+static const u8 enc_nonce026[] __initconst = {
+ 0x68, 0xab, 0x7f, 0xdb, 0xf6, 0x19, 0x01, 0xda,
+ 0xd4, 0x61, 0xd2, 0x3c
+};
+static const u8 enc_key026[] __initconst = {
+ 0x67, 0x11, 0x96, 0x27, 0xbd, 0x98, 0x8e, 0xda,
+ 0x90, 0x62, 0x19, 0xe0, 0x8c, 0x0d, 0x0d, 0x77,
+ 0x9a, 0x07, 0xd2, 0x08, 0xce, 0x8a, 0x4f, 0xe0,
+ 0x70, 0x9a, 0xf7, 0x55, 0xee, 0xec, 0x6d, 0xcb
+};
+
+/* wycheproof - misc */
+static const u8 enc_input027[] __initconst = {
+ 0x97, 0x46, 0x9d, 0xa6, 0x67, 0xd6, 0x11, 0x0f,
+ 0x9c, 0xbd, 0xa1, 0xd1, 0xa2, 0x06, 0x73
+};
+static const u8 enc_output027[] __initconst = {
+ 0x32, 0xdb, 0x66, 0xc4, 0xa3, 0x81, 0x9d, 0x81,
+ 0x55, 0x74, 0x55, 0xe5, 0x98, 0x0f, 0xed, 0xfe,
+ 0xae, 0x30, 0xde, 0xc9, 0x4e, 0x6a, 0xd3, 0xa9,
+ 0xee, 0xa0, 0x6a, 0x0d, 0x70, 0x39, 0x17
+};
+static const u8 enc_assoc027[] __initconst = {
+ 0x64, 0x53, 0xa5, 0x33, 0x84, 0x63, 0x22, 0x12
+};
+static const u8 enc_nonce027[] __initconst = {
+ 0xd9, 0x5b, 0x32, 0x43, 0xaf, 0xae, 0xf7, 0x14,
+ 0xc5, 0x03, 0x5b, 0x6a
+};
+static const u8 enc_key027[] __initconst = {
+ 0xe6, 0xf1, 0x11, 0x8d, 0x41, 0xe4, 0xb4, 0x3f,
+ 0xb5, 0x82, 0x21, 0xb7, 0xed, 0x79, 0x67, 0x38,
+ 0x34, 0xe0, 0xd8, 0xac, 0x5c, 0x4f, 0xa6, 0x0b,
+ 0xbc, 0x8b, 0xc4, 0x89, 0x3a, 0x58, 0x89, 0x4d
+};
+
+/* wycheproof - misc */
+static const u8 enc_input028[] __initconst = {
+ 0x54, 0x9b, 0x36, 0x5a, 0xf9, 0x13, 0xf3, 0xb0,
+ 0x81, 0x13, 0x1c, 0xcb, 0x6b, 0x82, 0x55, 0x88
+};
+static const u8 enc_output028[] __initconst = {
+ 0xe9, 0x11, 0x0e, 0x9f, 0x56, 0xab, 0x3c, 0xa4,
+ 0x83, 0x50, 0x0c, 0xea, 0xba, 0xb6, 0x7a, 0x13,
+ 0x83, 0x6c, 0xca, 0xbf, 0x15, 0xa6, 0xa2, 0x2a,
+ 0x51, 0xc1, 0x07, 0x1c, 0xfa, 0x68, 0xfa, 0x0c
+};
+static const u8 enc_assoc028[] __initconst = { };
+static const u8 enc_nonce028[] __initconst = {
+ 0x2f, 0xcb, 0x1b, 0x38, 0xa9, 0x9e, 0x71, 0xb8,
+ 0x47, 0x40, 0xad, 0x9b
+};
+static const u8 enc_key028[] __initconst = {
+ 0x59, 0xd4, 0xea, 0xfb, 0x4d, 0xe0, 0xcf, 0xc7,
+ 0xd3, 0xdb, 0x99, 0xa8, 0xf5, 0x4b, 0x15, 0xd7,
+ 0xb3, 0x9f, 0x0a, 0xcc, 0x8d, 0xa6, 0x97, 0x63,
+ 0xb0, 0x19, 0xc1, 0x69, 0x9f, 0x87, 0x67, 0x4a
+};
+
+/* wycheproof - misc */
+static const u8 enc_input029[] __initconst = {
+ 0x55, 0xa4, 0x65, 0x64, 0x4f, 0x5b, 0x65, 0x09,
+ 0x28, 0xcb, 0xee, 0x7c, 0x06, 0x32, 0x14, 0xd6
+};
+static const u8 enc_output029[] __initconst = {
+ 0xe4, 0xb1, 0x13, 0xcb, 0x77, 0x59, 0x45, 0xf3,
+ 0xd3, 0xa8, 0xae, 0x9e, 0xc1, 0x41, 0xc0, 0x0c,
+ 0x7c, 0x43, 0xf1, 0x6c, 0xe0, 0x96, 0xd0, 0xdc,
+ 0x27, 0xc9, 0x58, 0x49, 0xdc, 0x38, 0x3b, 0x7d
+};
+static const u8 enc_assoc029[] __initconst = {
+ 0x03, 0x45, 0x85, 0x62, 0x1a, 0xf8, 0xd7, 0xff
+};
+static const u8 enc_nonce029[] __initconst = {
+ 0x11, 0x8a, 0x69, 0x64, 0xc2, 0xd3, 0xe3, 0x80,
+ 0x07, 0x1f, 0x52, 0x66
+};
+static const u8 enc_key029[] __initconst = {
+ 0xb9, 0x07, 0xa4, 0x50, 0x75, 0x51, 0x3f, 0xe8,
+ 0xa8, 0x01, 0x9e, 0xde, 0xe3, 0xf2, 0x59, 0x14,
+ 0x87, 0xb2, 0xa0, 0x30, 0xb0, 0x3c, 0x6e, 0x1d,
+ 0x77, 0x1c, 0x86, 0x25, 0x71, 0xd2, 0xea, 0x1e
+};
+
+/* wycheproof - misc */
+static const u8 enc_input030[] __initconst = {
+ 0x3f, 0xf1, 0x51, 0x4b, 0x1c, 0x50, 0x39, 0x15,
+ 0x91, 0x8f, 0x0c, 0x0c, 0x31, 0x09, 0x4a, 0x6e,
+ 0x1f
+};
+static const u8 enc_output030[] __initconst = {
+ 0x02, 0xcc, 0x3a, 0xcb, 0x5e, 0xe1, 0xfc, 0xdd,
+ 0x12, 0xa0, 0x3b, 0xb8, 0x57, 0x97, 0x64, 0x74,
+ 0xd3, 0xd8, 0x3b, 0x74, 0x63, 0xa2, 0xc3, 0x80,
+ 0x0f, 0xe9, 0x58, 0xc2, 0x8e, 0xaa, 0x29, 0x08,
+ 0x13
+};
+static const u8 enc_assoc030[] __initconst = { };
+static const u8 enc_nonce030[] __initconst = {
+ 0x45, 0xaa, 0xa3, 0xe5, 0xd1, 0x6d, 0x2d, 0x42,
+ 0xdc, 0x03, 0x44, 0x5d
+};
+static const u8 enc_key030[] __initconst = {
+ 0x3b, 0x24, 0x58, 0xd8, 0x17, 0x6e, 0x16, 0x21,
+ 0xc0, 0xcc, 0x24, 0xc0, 0xc0, 0xe2, 0x4c, 0x1e,
+ 0x80, 0xd7, 0x2f, 0x7e, 0xe9, 0x14, 0x9a, 0x4b,
+ 0x16, 0x61, 0x76, 0x62, 0x96, 0x16, 0xd0, 0x11
+};
+
+/* wycheproof - misc */
+static const u8 enc_input031[] __initconst = {
+ 0x63, 0x85, 0x8c, 0xa3, 0xe2, 0xce, 0x69, 0x88,
+ 0x7b, 0x57, 0x8a, 0x3c, 0x16, 0x7b, 0x42, 0x1c,
+ 0x9c
+};
+static const u8 enc_output031[] __initconst = {
+ 0x35, 0x76, 0x64, 0x88, 0xd2, 0xbc, 0x7c, 0x2b,
+ 0x8d, 0x17, 0xcb, 0xbb, 0x9a, 0xbf, 0xad, 0x9e,
+ 0x6d, 0x1f, 0x39, 0x1e, 0x65, 0x7b, 0x27, 0x38,
+ 0xdd, 0xa0, 0x84, 0x48, 0xcb, 0xa2, 0x81, 0x1c,
+ 0xeb
+};
+static const u8 enc_assoc031[] __initconst = {
+ 0x9a, 0xaf, 0x29, 0x9e, 0xee, 0xa7, 0x8f, 0x79
+};
+static const u8 enc_nonce031[] __initconst = {
+ 0xf0, 0x38, 0x4f, 0xb8, 0x76, 0x12, 0x14, 0x10,
+ 0x63, 0x3d, 0x99, 0x3d
+};
+static const u8 enc_key031[] __initconst = {
+ 0xf6, 0x0c, 0x6a, 0x1b, 0x62, 0x57, 0x25, 0xf7,
+ 0x6c, 0x70, 0x37, 0xb4, 0x8f, 0xe3, 0x57, 0x7f,
+ 0xa7, 0xf7, 0xb8, 0x7b, 0x1b, 0xd5, 0xa9, 0x82,
+ 0x17, 0x6d, 0x18, 0x23, 0x06, 0xff, 0xb8, 0x70
+};
+
+/* wycheproof - misc */
+static const u8 enc_input032[] __initconst = {
+ 0x10, 0xf1, 0xec, 0xf9, 0xc6, 0x05, 0x84, 0x66,
+ 0x5d, 0x9a, 0xe5, 0xef, 0xe2, 0x79, 0xe7, 0xf7,
+ 0x37, 0x7e, 0xea, 0x69, 0x16, 0xd2, 0xb1, 0x11
+};
+static const u8 enc_output032[] __initconst = {
+ 0x42, 0xf2, 0x6c, 0x56, 0xcb, 0x4b, 0xe2, 0x1d,
+ 0x9d, 0x8d, 0x0c, 0x80, 0xfc, 0x99, 0xdd, 0xe0,
+ 0x0d, 0x75, 0xf3, 0x80, 0x74, 0xbf, 0xe7, 0x64,
+ 0x54, 0xaa, 0x7e, 0x13, 0xd4, 0x8f, 0xff, 0x7d,
+ 0x75, 0x57, 0x03, 0x94, 0x57, 0x04, 0x0a, 0x3a
+};
+static const u8 enc_assoc032[] __initconst = { };
+static const u8 enc_nonce032[] __initconst = {
+ 0xe6, 0xb1, 0xad, 0xf2, 0xfd, 0x58, 0xa8, 0x76,
+ 0x2c, 0x65, 0xf3, 0x1b
+};
+static const u8 enc_key032[] __initconst = {
+ 0x02, 0x12, 0xa8, 0xde, 0x50, 0x07, 0xed, 0x87,
+ 0xb3, 0x3f, 0x1a, 0x70, 0x90, 0xb6, 0x11, 0x4f,
+ 0x9e, 0x08, 0xce, 0xfd, 0x96, 0x07, 0xf2, 0xc2,
+ 0x76, 0xbd, 0xcf, 0xdb, 0xc5, 0xce, 0x9c, 0xd7
+};
+
+/* wycheproof - misc */
+static const u8 enc_input033[] __initconst = {
+ 0x92, 0x22, 0xf9, 0x01, 0x8e, 0x54, 0xfd, 0x6d,
+ 0xe1, 0x20, 0x08, 0x06, 0xa9, 0xee, 0x8e, 0x4c,
+ 0xc9, 0x04, 0xd2, 0x9f, 0x25, 0xcb, 0xa1, 0x93
+};
+static const u8 enc_output033[] __initconst = {
+ 0x12, 0x30, 0x32, 0x43, 0x7b, 0x4b, 0xfd, 0x69,
+ 0x20, 0xe8, 0xf7, 0xe7, 0xe0, 0x08, 0x7a, 0xe4,
+ 0x88, 0x9e, 0xbe, 0x7a, 0x0a, 0xd0, 0xe9, 0x00,
+ 0x3c, 0xf6, 0x8f, 0x17, 0x95, 0x50, 0xda, 0x63,
+ 0xd3, 0xb9, 0x6c, 0x2d, 0x55, 0x41, 0x18, 0x65
+};
+static const u8 enc_assoc033[] __initconst = {
+ 0x3e, 0x8b, 0xc5, 0xad, 0xe1, 0x82, 0xff, 0x08
+};
+static const u8 enc_nonce033[] __initconst = {
+ 0x6b, 0x28, 0x2e, 0xbe, 0xcc, 0x54, 0x1b, 0xcd,
+ 0x78, 0x34, 0xed, 0x55
+};
+static const u8 enc_key033[] __initconst = {
+ 0xc5, 0xbc, 0x09, 0x56, 0x56, 0x46, 0xe7, 0xed,
+ 0xda, 0x95, 0x4f, 0x1f, 0x73, 0x92, 0x23, 0xda,
+ 0xda, 0x20, 0xb9, 0x5c, 0x44, 0xab, 0x03, 0x3d,
+ 0x0f, 0xae, 0x4b, 0x02, 0x83, 0xd1, 0x8b, 0xe3
+};
+
+/* wycheproof - misc */
+static const u8 enc_input034[] __initconst = {
+ 0xb0, 0x53, 0x99, 0x92, 0x86, 0xa2, 0x82, 0x4f,
+ 0x42, 0xcc, 0x8c, 0x20, 0x3a, 0xb2, 0x4e, 0x2c,
+ 0x97, 0xa6, 0x85, 0xad, 0xcc, 0x2a, 0xd3, 0x26,
+ 0x62, 0x55, 0x8e, 0x55, 0xa5, 0xc7, 0x29
+};
+static const u8 enc_output034[] __initconst = {
+ 0x45, 0xc7, 0xd6, 0xb5, 0x3a, 0xca, 0xd4, 0xab,
+ 0xb6, 0x88, 0x76, 0xa6, 0xe9, 0x6a, 0x48, 0xfb,
+ 0x59, 0x52, 0x4d, 0x2c, 0x92, 0xc9, 0xd8, 0xa1,
+ 0x89, 0xc9, 0xfd, 0x2d, 0xb9, 0x17, 0x46, 0x56,
+ 0x6d, 0x3c, 0xa1, 0x0e, 0x31, 0x1b, 0x69, 0x5f,
+ 0x3e, 0xae, 0x15, 0x51, 0x65, 0x24, 0x93
+};
+static const u8 enc_assoc034[] __initconst = { };
+static const u8 enc_nonce034[] __initconst = {
+ 0x04, 0xa9, 0xbe, 0x03, 0x50, 0x8a, 0x5f, 0x31,
+ 0x37, 0x1a, 0x6f, 0xd2
+};
+static const u8 enc_key034[] __initconst = {
+ 0x2e, 0xb5, 0x1c, 0x46, 0x9a, 0xa8, 0xeb, 0x9e,
+ 0x6c, 0x54, 0xa8, 0x34, 0x9b, 0xae, 0x50, 0xa2,
+ 0x0f, 0x0e, 0x38, 0x27, 0x11, 0xbb, 0xa1, 0x15,
+ 0x2c, 0x42, 0x4f, 0x03, 0xb6, 0x67, 0x1d, 0x71
+};
+
+/* wycheproof - misc */
+static const u8 enc_input035[] __initconst = {
+ 0xf4, 0x52, 0x06, 0xab, 0xc2, 0x55, 0x52, 0xb2,
+ 0xab, 0xc9, 0xab, 0x7f, 0xa2, 0x43, 0x03, 0x5f,
+ 0xed, 0xaa, 0xdd, 0xc3, 0xb2, 0x29, 0x39, 0x56,
+ 0xf1, 0xea, 0x6e, 0x71, 0x56, 0xe7, 0xeb
+};
+static const u8 enc_output035[] __initconst = {
+ 0x46, 0xa8, 0x0c, 0x41, 0x87, 0x02, 0x47, 0x20,
+ 0x08, 0x46, 0x27, 0x58, 0x00, 0x80, 0xdd, 0xe5,
+ 0xa3, 0xf4, 0xa1, 0x10, 0x93, 0xa7, 0x07, 0x6e,
+ 0xd6, 0xf3, 0xd3, 0x26, 0xbc, 0x7b, 0x70, 0x53,
+ 0x4d, 0x4a, 0xa2, 0x83, 0x5a, 0x52, 0xe7, 0x2d,
+ 0x14, 0xdf, 0x0e, 0x4f, 0x47, 0xf2, 0x5f
+};
+static const u8 enc_assoc035[] __initconst = {
+ 0x37, 0x46, 0x18, 0xa0, 0x6e, 0xa9, 0x8a, 0x48
+};
+static const u8 enc_nonce035[] __initconst = {
+ 0x47, 0x0a, 0x33, 0x9e, 0xcb, 0x32, 0x19, 0xb8,
+ 0xb8, 0x1a, 0x1f, 0x8b
+};
+static const u8 enc_key035[] __initconst = {
+ 0x7f, 0x5b, 0x74, 0xc0, 0x7e, 0xd1, 0xb4, 0x0f,
+ 0xd1, 0x43, 0x58, 0xfe, 0x2f, 0xf2, 0xa7, 0x40,
+ 0xc1, 0x16, 0xc7, 0x70, 0x65, 0x10, 0xe6, 0xa4,
+ 0x37, 0xf1, 0x9e, 0xa4, 0x99, 0x11, 0xce, 0xc4
+};
+
+/* wycheproof - misc */
+static const u8 enc_input036[] __initconst = {
+ 0xb9, 0xc5, 0x54, 0xcb, 0xc3, 0x6a, 0xc1, 0x8a,
+ 0xe8, 0x97, 0xdf, 0x7b, 0xee, 0xca, 0xc1, 0xdb,
+ 0xeb, 0x4e, 0xaf, 0xa1, 0x56, 0xbb, 0x60, 0xce,
+ 0x2e, 0x5d, 0x48, 0xf0, 0x57, 0x15, 0xe6, 0x78
+};
+static const u8 enc_output036[] __initconst = {
+ 0xea, 0x29, 0xaf, 0xa4, 0x9d, 0x36, 0xe8, 0x76,
+ 0x0f, 0x5f, 0xe1, 0x97, 0x23, 0xb9, 0x81, 0x1e,
+ 0xd5, 0xd5, 0x19, 0x93, 0x4a, 0x44, 0x0f, 0x50,
+ 0x81, 0xac, 0x43, 0x0b, 0x95, 0x3b, 0x0e, 0x21,
+ 0x22, 0x25, 0x41, 0xaf, 0x46, 0xb8, 0x65, 0x33,
+ 0xc6, 0xb6, 0x8d, 0x2f, 0xf1, 0x08, 0xa7, 0xea
+};
+static const u8 enc_assoc036[] __initconst = { };
+static const u8 enc_nonce036[] __initconst = {
+ 0x72, 0xcf, 0xd9, 0x0e, 0xf3, 0x02, 0x6c, 0xa2,
+ 0x2b, 0x7e, 0x6e, 0x6a
+};
+static const u8 enc_key036[] __initconst = {
+ 0xe1, 0x73, 0x1d, 0x58, 0x54, 0xe1, 0xb7, 0x0c,
+ 0xb3, 0xff, 0xe8, 0xb7, 0x86, 0xa2, 0xb3, 0xeb,
+ 0xf0, 0x99, 0x43, 0x70, 0x95, 0x47, 0x57, 0xb9,
+ 0xdc, 0x8c, 0x7b, 0xc5, 0x35, 0x46, 0x34, 0xa3
+};
+
+/* wycheproof - misc */
+static const u8 enc_input037[] __initconst = {
+ 0x6b, 0x26, 0x04, 0x99, 0x6c, 0xd3, 0x0c, 0x14,
+ 0xa1, 0x3a, 0x52, 0x57, 0xed, 0x6c, 0xff, 0xd3,
+ 0xbc, 0x5e, 0x29, 0xd6, 0xb9, 0x7e, 0xb1, 0x79,
+ 0x9e, 0xb3, 0x35, 0xe2, 0x81, 0xea, 0x45, 0x1e
+};
+static const u8 enc_output037[] __initconst = {
+ 0x6d, 0xad, 0x63, 0x78, 0x97, 0x54, 0x4d, 0x8b,
+ 0xf6, 0xbe, 0x95, 0x07, 0xed, 0x4d, 0x1b, 0xb2,
+ 0xe9, 0x54, 0xbc, 0x42, 0x7e, 0x5d, 0xe7, 0x29,
+ 0xda, 0xf5, 0x07, 0x62, 0x84, 0x6f, 0xf2, 0xf4,
+ 0x7b, 0x99, 0x7d, 0x93, 0xc9, 0x82, 0x18, 0x9d,
+ 0x70, 0x95, 0xdc, 0x79, 0x4c, 0x74, 0x62, 0x32
+};
+static const u8 enc_assoc037[] __initconst = {
+ 0x23, 0x33, 0xe5, 0xce, 0x0f, 0x93, 0xb0, 0x59
+};
+static const u8 enc_nonce037[] __initconst = {
+ 0x26, 0x28, 0x80, 0xd4, 0x75, 0xf3, 0xda, 0xc5,
+ 0x34, 0x0d, 0xd1, 0xb8
+};
+static const u8 enc_key037[] __initconst = {
+ 0x27, 0xd8, 0x60, 0x63, 0x1b, 0x04, 0x85, 0xa4,
+ 0x10, 0x70, 0x2f, 0xea, 0x61, 0xbc, 0x87, 0x3f,
+ 0x34, 0x42, 0x26, 0x0c, 0xad, 0xed, 0x4a, 0xbd,
+ 0xe2, 0x5b, 0x78, 0x6a, 0x2d, 0x97, 0xf1, 0x45
+};
+
+/* wycheproof - misc */
+static const u8 enc_input038[] __initconst = {
+ 0x97, 0x3d, 0x0c, 0x75, 0x38, 0x26, 0xba, 0xe4,
+ 0x66, 0xcf, 0x9a, 0xbb, 0x34, 0x93, 0x15, 0x2e,
+ 0x9d, 0xe7, 0x81, 0x9e, 0x2b, 0xd0, 0xc7, 0x11,
+ 0x71, 0x34, 0x6b, 0x4d, 0x2c, 0xeb, 0xf8, 0x04,
+ 0x1a, 0xa3, 0xce, 0xdc, 0x0d, 0xfd, 0x7b, 0x46,
+ 0x7e, 0x26, 0x22, 0x8b, 0xc8, 0x6c, 0x9a
+};
+static const u8 enc_output038[] __initconst = {
+ 0xfb, 0xa7, 0x8a, 0xe4, 0xf9, 0xd8, 0x08, 0xa6,
+ 0x2e, 0x3d, 0xa4, 0x0b, 0xe2, 0xcb, 0x77, 0x00,
+ 0xc3, 0x61, 0x3d, 0x9e, 0xb2, 0xc5, 0x29, 0xc6,
+ 0x52, 0xe7, 0x6a, 0x43, 0x2c, 0x65, 0x8d, 0x27,
+ 0x09, 0x5f, 0x0e, 0xb8, 0xf9, 0x40, 0xc3, 0x24,
+ 0x98, 0x1e, 0xa9, 0x35, 0xe5, 0x07, 0xf9, 0x8f,
+ 0x04, 0x69, 0x56, 0xdb, 0x3a, 0x51, 0x29, 0x08,
+ 0xbd, 0x7a, 0xfc, 0x8f, 0x2a, 0xb0, 0xa9
+};
+static const u8 enc_assoc038[] __initconst = { };
+static const u8 enc_nonce038[] __initconst = {
+ 0xe7, 0x4a, 0x51, 0x5e, 0x7e, 0x21, 0x02, 0xb9,
+ 0x0b, 0xef, 0x55, 0xd2
+};
+static const u8 enc_key038[] __initconst = {
+ 0xcf, 0x0d, 0x40, 0xa4, 0x64, 0x4e, 0x5f, 0x51,
+ 0x81, 0x51, 0x65, 0xd5, 0x30, 0x1b, 0x22, 0x63,
+ 0x1f, 0x45, 0x44, 0xc4, 0x9a, 0x18, 0x78, 0xe3,
+ 0xa0, 0xa5, 0xe8, 0xe1, 0xaa, 0xe0, 0xf2, 0x64
+};
+
+/* wycheproof - misc */
+static const u8 enc_input039[] __initconst = {
+ 0xa9, 0x89, 0x95, 0x50, 0x4d, 0xf1, 0x6f, 0x74,
+ 0x8b, 0xfb, 0x77, 0x85, 0xff, 0x91, 0xee, 0xb3,
+ 0xb6, 0x60, 0xea, 0x9e, 0xd3, 0x45, 0x0c, 0x3d,
+ 0x5e, 0x7b, 0x0e, 0x79, 0xef, 0x65, 0x36, 0x59,
+ 0xa9, 0x97, 0x8d, 0x75, 0x54, 0x2e, 0xf9, 0x1c,
+ 0x45, 0x67, 0x62, 0x21, 0x56, 0x40, 0xb9
+};
+static const u8 enc_output039[] __initconst = {
+ 0xa1, 0xff, 0xed, 0x80, 0x76, 0x18, 0x29, 0xec,
+ 0xce, 0x24, 0x2e, 0x0e, 0x88, 0xb1, 0x38, 0x04,
+ 0x90, 0x16, 0xbc, 0xa0, 0x18, 0xda, 0x2b, 0x6e,
+ 0x19, 0x98, 0x6b, 0x3e, 0x31, 0x8c, 0xae, 0x8d,
+ 0x80, 0x61, 0x98, 0xfb, 0x4c, 0x52, 0x7c, 0xc3,
+ 0x93, 0x50, 0xeb, 0xdd, 0xea, 0xc5, 0x73, 0xc4,
+ 0xcb, 0xf0, 0xbe, 0xfd, 0xa0, 0xb7, 0x02, 0x42,
+ 0xc6, 0x40, 0xd7, 0xcd, 0x02, 0xd7, 0xa3
+};
+static const u8 enc_assoc039[] __initconst = {
+ 0xb3, 0xe4, 0x06, 0x46, 0x83, 0xb0, 0x2d, 0x84
+};
+static const u8 enc_nonce039[] __initconst = {
+ 0xd4, 0xd8, 0x07, 0x34, 0x16, 0x83, 0x82, 0x5b,
+ 0x31, 0xcd, 0x4d, 0x95
+};
+static const u8 enc_key039[] __initconst = {
+ 0x6c, 0xbf, 0xd7, 0x1c, 0x64, 0x5d, 0x18, 0x4c,
+ 0xf5, 0xd2, 0x3c, 0x40, 0x2b, 0xdb, 0x0d, 0x25,
+ 0xec, 0x54, 0x89, 0x8c, 0x8a, 0x02, 0x73, 0xd4,
+ 0x2e, 0xb5, 0xbe, 0x10, 0x9f, 0xdc, 0xb2, 0xac
+};
+
+/* wycheproof - misc */
+static const u8 enc_input040[] __initconst = {
+ 0xd0, 0x96, 0x80, 0x31, 0x81, 0xbe, 0xef, 0x9e,
+ 0x00, 0x8f, 0xf8, 0x5d, 0x5d, 0xdc, 0x38, 0xdd,
+ 0xac, 0xf0, 0xf0, 0x9e, 0xe5, 0xf7, 0xe0, 0x7f,
+ 0x1e, 0x40, 0x79, 0xcb, 0x64, 0xd0, 0xdc, 0x8f,
+ 0x5e, 0x67, 0x11, 0xcd, 0x49, 0x21, 0xa7, 0x88,
+ 0x7d, 0xe7, 0x6e, 0x26, 0x78, 0xfd, 0xc6, 0x76,
+ 0x18, 0xf1, 0x18, 0x55, 0x86, 0xbf, 0xea, 0x9d,
+ 0x4c, 0x68, 0x5d, 0x50, 0xe4, 0xbb, 0x9a, 0x82
+};
+static const u8 enc_output040[] __initconst = {
+ 0x9a, 0x4e, 0xf2, 0x2b, 0x18, 0x16, 0x77, 0xb5,
+ 0x75, 0x5c, 0x08, 0xf7, 0x47, 0xc0, 0xf8, 0xd8,
+ 0xe8, 0xd4, 0xc1, 0x8a, 0x9c, 0xc2, 0x40, 0x5c,
+ 0x12, 0xbb, 0x51, 0xbb, 0x18, 0x72, 0xc8, 0xe8,
+ 0xb8, 0x77, 0x67, 0x8b, 0xec, 0x44, 0x2c, 0xfc,
+ 0xbb, 0x0f, 0xf4, 0x64, 0xa6, 0x4b, 0x74, 0x33,
+ 0x2c, 0xf0, 0x72, 0x89, 0x8c, 0x7e, 0x0e, 0xdd,
+ 0xf6, 0x23, 0x2e, 0xa6, 0xe2, 0x7e, 0xfe, 0x50,
+ 0x9f, 0xf3, 0x42, 0x7a, 0x0f, 0x32, 0xfa, 0x56,
+ 0x6d, 0x9c, 0xa0, 0xa7, 0x8a, 0xef, 0xc0, 0x13
+};
+static const u8 enc_assoc040[] __initconst = { };
+static const u8 enc_nonce040[] __initconst = {
+ 0xd6, 0x10, 0x40, 0xa3, 0x13, 0xed, 0x49, 0x28,
+ 0x23, 0xcc, 0x06, 0x5b
+};
+static const u8 enc_key040[] __initconst = {
+ 0x5b, 0x1d, 0x10, 0x35, 0xc0, 0xb1, 0x7e, 0xe0,
+ 0xb0, 0x44, 0x47, 0x67, 0xf8, 0x0a, 0x25, 0xb8,
+ 0xc1, 0xb7, 0x41, 0xf4, 0xb5, 0x0a, 0x4d, 0x30,
+ 0x52, 0x22, 0x6b, 0xaa, 0x1c, 0x6f, 0xb7, 0x01
+};
+
+/* wycheproof - misc */
+static const u8 enc_input041[] __initconst = {
+ 0x94, 0xee, 0x16, 0x6d, 0x6d, 0x6e, 0xcf, 0x88,
+ 0x32, 0x43, 0x71, 0x36, 0xb4, 0xae, 0x80, 0x5d,
+ 0x42, 0x88, 0x64, 0x35, 0x95, 0x86, 0xd9, 0x19,
+ 0x3a, 0x25, 0x01, 0x62, 0x93, 0xed, 0xba, 0x44,
+ 0x3c, 0x58, 0xe0, 0x7e, 0x7b, 0x71, 0x95, 0xec,
+ 0x5b, 0xd8, 0x45, 0x82, 0xa9, 0xd5, 0x6c, 0x8d,
+ 0x4a, 0x10, 0x8c, 0x7d, 0x7c, 0xe3, 0x4e, 0x6c,
+ 0x6f, 0x8e, 0xa1, 0xbe, 0xc0, 0x56, 0x73, 0x17
+};
+static const u8 enc_output041[] __initconst = {
+ 0x5f, 0xbb, 0xde, 0xcc, 0x34, 0xbe, 0x20, 0x16,
+ 0x14, 0xf6, 0x36, 0x03, 0x1e, 0xeb, 0x42, 0xf1,
+ 0xca, 0xce, 0x3c, 0x79, 0xa1, 0x2c, 0xff, 0xd8,
+ 0x71, 0xee, 0x8e, 0x73, 0x82, 0x0c, 0x82, 0x97,
+ 0x49, 0xf1, 0xab, 0xb4, 0x29, 0x43, 0x67, 0x84,
+ 0x9f, 0xb6, 0xc2, 0xaa, 0x56, 0xbd, 0xa8, 0xa3,
+ 0x07, 0x8f, 0x72, 0x3d, 0x7c, 0x1c, 0x85, 0x20,
+ 0x24, 0xb0, 0x17, 0xb5, 0x89, 0x73, 0xfb, 0x1e,
+ 0x09, 0x26, 0x3d, 0xa7, 0xb4, 0xcb, 0x92, 0x14,
+ 0x52, 0xf9, 0x7d, 0xca, 0x40, 0xf5, 0x80, 0xec
+};
+static const u8 enc_assoc041[] __initconst = {
+ 0x71, 0x93, 0xf6, 0x23, 0x66, 0x33, 0x21, 0xa2
+};
+static const u8 enc_nonce041[] __initconst = {
+ 0xd3, 0x1c, 0x21, 0xab, 0xa1, 0x75, 0xb7, 0x0d,
+ 0xe4, 0xeb, 0xb1, 0x9c
+};
+static const u8 enc_key041[] __initconst = {
+ 0x97, 0xd6, 0x35, 0xc4, 0xf4, 0x75, 0x74, 0xd9,
+ 0x99, 0x8a, 0x90, 0x87, 0x5d, 0xa1, 0xd3, 0xa2,
+ 0x84, 0xb7, 0x55, 0xb2, 0xd3, 0x92, 0x97, 0xa5,
+ 0x72, 0x52, 0x35, 0x19, 0x0e, 0x10, 0xa9, 0x7e
+};
+
+/* wycheproof - misc */
+static const u8 enc_input042[] __initconst = {
+ 0xb4, 0x29, 0xeb, 0x80, 0xfb, 0x8f, 0xe8, 0xba,
+ 0xed, 0xa0, 0xc8, 0x5b, 0x9c, 0x33, 0x34, 0x58,
+ 0xe7, 0xc2, 0x99, 0x2e, 0x55, 0x84, 0x75, 0x06,
+ 0x9d, 0x12, 0xd4, 0x5c, 0x22, 0x21, 0x75, 0x64,
+ 0x12, 0x15, 0x88, 0x03, 0x22, 0x97, 0xef, 0xf5,
+ 0x67, 0x83, 0x74, 0x2a, 0x5f, 0xc2, 0x2d, 0x74,
+ 0x10, 0xff, 0xb2, 0x9d, 0x66, 0x09, 0x86, 0x61,
+ 0xd7, 0x6f, 0x12, 0x6c, 0x3c, 0x27, 0x68, 0x9e,
+ 0x43, 0xb3, 0x72, 0x67, 0xca, 0xc5, 0xa3, 0xa6,
+ 0xd3, 0xab, 0x49, 0xe3, 0x91, 0xda, 0x29, 0xcd,
+ 0x30, 0x54, 0xa5, 0x69, 0x2e, 0x28, 0x07, 0xe4,
+ 0xc3, 0xea, 0x46, 0xc8, 0x76, 0x1d, 0x50, 0xf5,
+ 0x92
+};
+static const u8 enc_output042[] __initconst = {
+ 0xd0, 0x10, 0x2f, 0x6c, 0x25, 0x8b, 0xf4, 0x97,
+ 0x42, 0xce, 0xc3, 0x4c, 0xf2, 0xd0, 0xfe, 0xdf,
+ 0x23, 0xd1, 0x05, 0xfb, 0x4c, 0x84, 0xcf, 0x98,
+ 0x51, 0x5e, 0x1b, 0xc9, 0xa6, 0x4f, 0x8a, 0xd5,
+ 0xbe, 0x8f, 0x07, 0x21, 0xbd, 0xe5, 0x06, 0x45,
+ 0xd0, 0x00, 0x83, 0xc3, 0xa2, 0x63, 0xa3, 0x10,
+ 0x53, 0xb7, 0x60, 0x24, 0x5f, 0x52, 0xae, 0x28,
+ 0x66, 0xa5, 0xec, 0x83, 0xb1, 0x9f, 0x61, 0xbe,
+ 0x1d, 0x30, 0xd5, 0xc5, 0xd9, 0xfe, 0xcc, 0x4c,
+ 0xbb, 0xe0, 0x8f, 0xd3, 0x85, 0x81, 0x3a, 0x2a,
+ 0xa3, 0x9a, 0x00, 0xff, 0x9c, 0x10, 0xf7, 0xf2,
+ 0x37, 0x02, 0xad, 0xd1, 0xe4, 0xb2, 0xff, 0xa3,
+ 0x1c, 0x41, 0x86, 0x5f, 0xc7, 0x1d, 0xe1, 0x2b,
+ 0x19, 0x61, 0x21, 0x27, 0xce, 0x49, 0x99, 0x3b,
+ 0xb0
+};
+static const u8 enc_assoc042[] __initconst = { };
+static const u8 enc_nonce042[] __initconst = {
+ 0x17, 0xc8, 0x6a, 0x8a, 0xbb, 0xb7, 0xe0, 0x03,
+ 0xac, 0xde, 0x27, 0x99
+};
+static const u8 enc_key042[] __initconst = {
+ 0xfe, 0x6e, 0x55, 0xbd, 0xae, 0xd1, 0xf7, 0x28,
+ 0x4c, 0xa5, 0xfc, 0x0f, 0x8c, 0x5f, 0x2b, 0x8d,
+ 0xf5, 0x6d, 0xc0, 0xf4, 0x9e, 0x8c, 0xa6, 0x6a,
+ 0x41, 0x99, 0x5e, 0x78, 0x33, 0x51, 0xf9, 0x01
+};
+
+/* wycheproof - misc */
+static const u8 enc_input043[] __initconst = {
+ 0xce, 0xb5, 0x34, 0xce, 0x50, 0xdc, 0x23, 0xff,
+ 0x63, 0x8a, 0xce, 0x3e, 0xf6, 0x3a, 0xb2, 0xcc,
+ 0x29, 0x73, 0xee, 0xad, 0xa8, 0x07, 0x85, 0xfc,
+ 0x16, 0x5d, 0x06, 0xc2, 0xf5, 0x10, 0x0f, 0xf5,
+ 0xe8, 0xab, 0x28, 0x82, 0xc4, 0x75, 0xaf, 0xcd,
+ 0x05, 0xcc, 0xd4, 0x9f, 0x2e, 0x7d, 0x8f, 0x55,
+ 0xef, 0x3a, 0x72, 0xe3, 0xdc, 0x51, 0xd6, 0x85,
+ 0x2b, 0x8e, 0x6b, 0x9e, 0x7a, 0xec, 0xe5, 0x7b,
+ 0xe6, 0x55, 0x6b, 0x0b, 0x6d, 0x94, 0x13, 0xe3,
+ 0x3f, 0xc5, 0xfc, 0x24, 0xa9, 0xa2, 0x05, 0xad,
+ 0x59, 0x57, 0x4b, 0xb3, 0x9d, 0x94, 0x4a, 0x92,
+ 0xdc, 0x47, 0x97, 0x0d, 0x84, 0xa6, 0xad, 0x31,
+ 0x76
+};
+static const u8 enc_output043[] __initconst = {
+ 0x75, 0x45, 0x39, 0x1b, 0x51, 0xde, 0x01, 0xd5,
+ 0xc5, 0x3d, 0xfa, 0xca, 0x77, 0x79, 0x09, 0x06,
+ 0x3e, 0x58, 0xed, 0xee, 0x4b, 0xb1, 0x22, 0x7e,
+ 0x71, 0x10, 0xac, 0x4d, 0x26, 0x20, 0xc2, 0xae,
+ 0xc2, 0xf8, 0x48, 0xf5, 0x6d, 0xee, 0xb0, 0x37,
+ 0xa8, 0xdc, 0xed, 0x75, 0xaf, 0xa8, 0xa6, 0xc8,
+ 0x90, 0xe2, 0xde, 0xe4, 0x2f, 0x95, 0x0b, 0xb3,
+ 0x3d, 0x9e, 0x24, 0x24, 0xd0, 0x8a, 0x50, 0x5d,
+ 0x89, 0x95, 0x63, 0x97, 0x3e, 0xd3, 0x88, 0x70,
+ 0xf3, 0xde, 0x6e, 0xe2, 0xad, 0xc7, 0xfe, 0x07,
+ 0x2c, 0x36, 0x6c, 0x14, 0xe2, 0xcf, 0x7c, 0xa6,
+ 0x2f, 0xb3, 0xd3, 0x6b, 0xee, 0x11, 0x68, 0x54,
+ 0x61, 0xb7, 0x0d, 0x44, 0xef, 0x8c, 0x66, 0xc5,
+ 0xc7, 0xbb, 0xf1, 0x0d, 0xca, 0xdd, 0x7f, 0xac,
+ 0xf6
+};
+static const u8 enc_assoc043[] __initconst = {
+ 0xa1, 0x1c, 0x40, 0xb6, 0x03, 0x76, 0x73, 0x30
+};
+static const u8 enc_nonce043[] __initconst = {
+ 0x46, 0x36, 0x2f, 0x45, 0xd6, 0x37, 0x9e, 0x63,
+ 0xe5, 0x22, 0x94, 0x60
+};
+static const u8 enc_key043[] __initconst = {
+ 0xaa, 0xbc, 0x06, 0x34, 0x74, 0xe6, 0x5c, 0x4c,
+ 0x3e, 0x9b, 0xdc, 0x48, 0x0d, 0xea, 0x97, 0xb4,
+ 0x51, 0x10, 0xc8, 0x61, 0x88, 0x46, 0xff, 0x6b,
+ 0x15, 0xbd, 0xd2, 0xa4, 0xa5, 0x68, 0x2c, 0x4e
+};
+
+/* wycheproof - misc */
+static const u8 enc_input044[] __initconst = {
+ 0xe5, 0xcc, 0xaa, 0x44, 0x1b, 0xc8, 0x14, 0x68,
+ 0x8f, 0x8f, 0x6e, 0x8f, 0x28, 0xb5, 0x00, 0xb2
+};
+static const u8 enc_output044[] __initconst = {
+ 0x7e, 0x72, 0xf5, 0xa1, 0x85, 0xaf, 0x16, 0xa6,
+ 0x11, 0x92, 0x1b, 0x43, 0x8f, 0x74, 0x9f, 0x0b,
+ 0x12, 0x42, 0xc6, 0x70, 0x73, 0x23, 0x34, 0x02,
+ 0x9a, 0xdf, 0xe1, 0xc5, 0x00, 0x16, 0x51, 0xe4
+};
+static const u8 enc_assoc044[] __initconst = {
+ 0x02
+};
+static const u8 enc_nonce044[] __initconst = {
+ 0x87, 0x34, 0x5f, 0x10, 0x55, 0xfd, 0x9e, 0x21,
+ 0x02, 0xd5, 0x06, 0x56
+};
+static const u8 enc_key044[] __initconst = {
+ 0x7d, 0x00, 0xb4, 0x80, 0x95, 0xad, 0xfa, 0x32,
+ 0x72, 0x05, 0x06, 0x07, 0xb2, 0x64, 0x18, 0x50,
+ 0x02, 0xba, 0x99, 0x95, 0x7c, 0x49, 0x8b, 0xe0,
+ 0x22, 0x77, 0x0f, 0x2c, 0xe2, 0xf3, 0x14, 0x3c
+};
+
+/* wycheproof - misc */
+static const u8 enc_input045[] __initconst = {
+ 0x02, 0xcd, 0xe1, 0x68, 0xfb, 0xa3, 0xf5, 0x44,
+ 0xbb, 0xd0, 0x33, 0x2f, 0x7a, 0xde, 0xad, 0xa8
+};
+static const u8 enc_output045[] __initconst = {
+ 0x85, 0xf2, 0x9a, 0x71, 0x95, 0x57, 0xcd, 0xd1,
+ 0x4d, 0x1f, 0x8f, 0xff, 0xab, 0x6d, 0x9e, 0x60,
+ 0x73, 0x2c, 0xa3, 0x2b, 0xec, 0xd5, 0x15, 0xa1,
+ 0xed, 0x35, 0x3f, 0x54, 0x2e, 0x99, 0x98, 0x58
+};
+static const u8 enc_assoc045[] __initconst = {
+ 0xb6, 0x48
+};
+static const u8 enc_nonce045[] __initconst = {
+ 0x87, 0xa3, 0x16, 0x3e, 0xc0, 0x59, 0x8a, 0xd9,
+ 0x5b, 0x3a, 0xa7, 0x13
+};
+static const u8 enc_key045[] __initconst = {
+ 0x64, 0x32, 0x71, 0x7f, 0x1d, 0xb8, 0x5e, 0x41,
+ 0xac, 0x78, 0x36, 0xbc, 0xe2, 0x51, 0x85, 0xa0,
+ 0x80, 0xd5, 0x76, 0x2b, 0x9e, 0x2b, 0x18, 0x44,
+ 0x4b, 0x6e, 0xc7, 0x2c, 0x3b, 0xd8, 0xe4, 0xdc
+};
+
+/* wycheproof - misc */
+static const u8 enc_input046[] __initconst = {
+ 0x16, 0xdd, 0xd2, 0x3f, 0xf5, 0x3f, 0x3d, 0x23,
+ 0xc0, 0x63, 0x34, 0x48, 0x70, 0x40, 0xeb, 0x47
+};
+static const u8 enc_output046[] __initconst = {
+ 0xc1, 0xb2, 0x95, 0x93, 0x6d, 0x56, 0xfa, 0xda,
+ 0xc0, 0x3e, 0x5f, 0x74, 0x2b, 0xff, 0x73, 0xa1,
+ 0x39, 0xc4, 0x57, 0xdb, 0xab, 0x66, 0x38, 0x2b,
+ 0xab, 0xb3, 0xb5, 0x58, 0x00, 0xcd, 0xa5, 0xb8
+};
+static const u8 enc_assoc046[] __initconst = {
+ 0xbd, 0x4c, 0xd0, 0x2f, 0xc7, 0x50, 0x2b, 0xbd,
+ 0xbd, 0xf6, 0xc9, 0xa3, 0xcb, 0xe8, 0xf0
+};
+static const u8 enc_nonce046[] __initconst = {
+ 0x6f, 0x57, 0x3a, 0xa8, 0x6b, 0xaa, 0x49, 0x2b,
+ 0xa4, 0x65, 0x96, 0xdf
+};
+static const u8 enc_key046[] __initconst = {
+ 0x8e, 0x34, 0xcf, 0x73, 0xd2, 0x45, 0xa1, 0x08,
+ 0x2a, 0x92, 0x0b, 0x86, 0x36, 0x4e, 0xb8, 0x96,
+ 0xc4, 0x94, 0x64, 0x67, 0xbc, 0xb3, 0xd5, 0x89,
+ 0x29, 0xfc, 0xb3, 0x66, 0x90, 0xe6, 0x39, 0x4f
+};
+
+/* wycheproof - misc */
+static const u8 enc_input047[] __initconst = {
+ 0x62, 0x3b, 0x78, 0x50, 0xc3, 0x21, 0xe2, 0xcf,
+ 0x0c, 0x6f, 0xbc, 0xc8, 0xdf, 0xd1, 0xaf, 0xf2
+};
+static const u8 enc_output047[] __initconst = {
+ 0xc8, 0x4c, 0x9b, 0xb7, 0xc6, 0x1c, 0x1b, 0xcb,
+ 0x17, 0x77, 0x2a, 0x1c, 0x50, 0x0c, 0x50, 0x95,
+ 0xdb, 0xad, 0xf7, 0xa5, 0x13, 0x8c, 0xa0, 0x34,
+ 0x59, 0xa2, 0xcd, 0x65, 0x83, 0x1e, 0x09, 0x2f
+};
+static const u8 enc_assoc047[] __initconst = {
+ 0x89, 0xcc, 0xe9, 0xfb, 0x47, 0x44, 0x1d, 0x07,
+ 0xe0, 0x24, 0x5a, 0x66, 0xfe, 0x8b, 0x77, 0x8b
+};
+static const u8 enc_nonce047[] __initconst = {
+ 0x1a, 0x65, 0x18, 0xf0, 0x2e, 0xde, 0x1d, 0xa6,
+ 0x80, 0x92, 0x66, 0xd9
+};
+static const u8 enc_key047[] __initconst = {
+ 0xcb, 0x55, 0x75, 0xf5, 0xc7, 0xc4, 0x5c, 0x91,
+ 0xcf, 0x32, 0x0b, 0x13, 0x9f, 0xb5, 0x94, 0x23,
+ 0x75, 0x60, 0xd0, 0xa3, 0xe6, 0xf8, 0x65, 0xa6,
+ 0x7d, 0x4f, 0x63, 0x3f, 0x2c, 0x08, 0xf0, 0x16
+};
+
+/* wycheproof - misc */
+static const u8 enc_input048[] __initconst = {
+ 0x87, 0xb3, 0xa4, 0xd7, 0xb2, 0x6d, 0x8d, 0x32,
+ 0x03, 0xa0, 0xde, 0x1d, 0x64, 0xef, 0x82, 0xe3
+};
+static const u8 enc_output048[] __initconst = {
+ 0x94, 0xbc, 0x80, 0x62, 0x1e, 0xd1, 0xe7, 0x1b,
+ 0x1f, 0xd2, 0xb5, 0xc3, 0xa1, 0x5e, 0x35, 0x68,
+ 0x33, 0x35, 0x11, 0x86, 0x17, 0x96, 0x97, 0x84,
+ 0x01, 0x59, 0x8b, 0x96, 0x37, 0x22, 0xf5, 0xb3
+};
+static const u8 enc_assoc048[] __initconst = {
+ 0xd1, 0x9f, 0x2d, 0x98, 0x90, 0x95, 0xf7, 0xab,
+ 0x03, 0xa5, 0xfd, 0xe8, 0x44, 0x16, 0xe0, 0x0c,
+ 0x0e
+};
+static const u8 enc_nonce048[] __initconst = {
+ 0x56, 0x4d, 0xee, 0x49, 0xab, 0x00, 0xd2, 0x40,
+ 0xfc, 0x10, 0x68, 0xc3
+};
+static const u8 enc_key048[] __initconst = {
+ 0xa5, 0x56, 0x9e, 0x72, 0x9a, 0x69, 0xb2, 0x4b,
+ 0xa6, 0xe0, 0xff, 0x15, 0xc4, 0x62, 0x78, 0x97,
+ 0x43, 0x68, 0x24, 0xc9, 0x41, 0xe9, 0xd0, 0x0b,
+ 0x2e, 0x93, 0xfd, 0xdc, 0x4b, 0xa7, 0x76, 0x57
+};
+
+/* wycheproof - misc */
+static const u8 enc_input049[] __initconst = {
+ 0xe6, 0x01, 0xb3, 0x85, 0x57, 0x79, 0x7d, 0xa2,
+ 0xf8, 0xa4, 0x10, 0x6a, 0x08, 0x9d, 0x1d, 0xa6
+};
+static const u8 enc_output049[] __initconst = {
+ 0x29, 0x9b, 0x5d, 0x3f, 0x3d, 0x03, 0xc0, 0x87,
+ 0x20, 0x9a, 0x16, 0xe2, 0x85, 0x14, 0x31, 0x11,
+ 0x4b, 0x45, 0x4e, 0xd1, 0x98, 0xde, 0x11, 0x7e,
+ 0x83, 0xec, 0x49, 0xfa, 0x8d, 0x85, 0x08, 0xd6
+};
+static const u8 enc_assoc049[] __initconst = {
+ 0x5e, 0x64, 0x70, 0xfa, 0xcd, 0x99, 0xc1, 0xd8,
+ 0x1e, 0x37, 0xcd, 0x44, 0x01, 0x5f, 0xe1, 0x94,
+ 0x80, 0xa2, 0xa4, 0xd3, 0x35, 0x2a, 0x4f, 0xf5,
+ 0x60, 0xc0, 0x64, 0x0f, 0xdb, 0xda
+};
+static const u8 enc_nonce049[] __initconst = {
+ 0xdf, 0x87, 0x13, 0xe8, 0x7e, 0xc3, 0xdb, 0xcf,
+ 0xad, 0x14, 0xd5, 0x3e
+};
+static const u8 enc_key049[] __initconst = {
+ 0x56, 0x20, 0x74, 0x65, 0xb4, 0xe4, 0x8e, 0x6d,
+ 0x04, 0x63, 0x0f, 0x4a, 0x42, 0xf3, 0x5c, 0xfc,
+ 0x16, 0x3a, 0xb2, 0x89, 0xc2, 0x2a, 0x2b, 0x47,
+ 0x84, 0xf6, 0xf9, 0x29, 0x03, 0x30, 0xbe, 0xe0
+};
+
+/* wycheproof - misc */
+static const u8 enc_input050[] __initconst = {
+ 0xdc, 0x9e, 0x9e, 0xaf, 0x11, 0xe3, 0x14, 0x18,
+ 0x2d, 0xf6, 0xa4, 0xeb, 0xa1, 0x7a, 0xec, 0x9c
+};
+static const u8 enc_output050[] __initconst = {
+ 0x60, 0x5b, 0xbf, 0x90, 0xae, 0xb9, 0x74, 0xf6,
+ 0x60, 0x2b, 0xc7, 0x78, 0x05, 0x6f, 0x0d, 0xca,
+ 0x38, 0xea, 0x23, 0xd9, 0x90, 0x54, 0xb4, 0x6b,
+ 0x42, 0xff, 0xe0, 0x04, 0x12, 0x9d, 0x22, 0x04
+};
+static const u8 enc_assoc050[] __initconst = {
+ 0xba, 0x44, 0x6f, 0x6f, 0x9a, 0x0c, 0xed, 0x22,
+ 0x45, 0x0f, 0xeb, 0x10, 0x73, 0x7d, 0x90, 0x07,
+ 0xfd, 0x69, 0xab, 0xc1, 0x9b, 0x1d, 0x4d, 0x90,
+ 0x49, 0xa5, 0x55, 0x1e, 0x86, 0xec, 0x2b, 0x37
+};
+static const u8 enc_nonce050[] __initconst = {
+ 0x8d, 0xf4, 0xb1, 0x5a, 0x88, 0x8c, 0x33, 0x28,
+ 0x6a, 0x7b, 0x76, 0x51
+};
+static const u8 enc_key050[] __initconst = {
+ 0x39, 0x37, 0x98, 0x6a, 0xf8, 0x6d, 0xaf, 0xc1,
+ 0xba, 0x0c, 0x46, 0x72, 0xd8, 0xab, 0xc4, 0x6c,
+ 0x20, 0x70, 0x62, 0x68, 0x2d, 0x9c, 0x26, 0x4a,
+ 0xb0, 0x6d, 0x6c, 0x58, 0x07, 0x20, 0x51, 0x30
+};
+
+/* wycheproof - misc */
+static const u8 enc_input051[] __initconst = {
+ 0x81, 0xce, 0x84, 0xed, 0xe9, 0xb3, 0x58, 0x59,
+ 0xcc, 0x8c, 0x49, 0xa8, 0xf6, 0xbe, 0x7d, 0xc6
+};
+static const u8 enc_output051[] __initconst = {
+ 0x7b, 0x7c, 0xe0, 0xd8, 0x24, 0x80, 0x9a, 0x70,
+ 0xde, 0x32, 0x56, 0x2c, 0xcf, 0x2c, 0x2b, 0xbd,
+ 0x15, 0xd4, 0x4a, 0x00, 0xce, 0x0d, 0x19, 0xb4,
+ 0x23, 0x1f, 0x92, 0x1e, 0x22, 0xbc, 0x0a, 0x43
+};
+static const u8 enc_assoc051[] __initconst = {
+ 0xd4, 0x1a, 0x82, 0x8d, 0x5e, 0x71, 0x82, 0x92,
+ 0x47, 0x02, 0x19, 0x05, 0x40, 0x2e, 0xa2, 0x57,
+ 0xdc, 0xcb, 0xc3, 0xb8, 0x0f, 0xcd, 0x56, 0x75,
+ 0x05, 0x6b, 0x68, 0xbb, 0x59, 0xe6, 0x2e, 0x88,
+ 0x73
+};
+static const u8 enc_nonce051[] __initconst = {
+ 0xbe, 0x40, 0xe5, 0xf1, 0xa1, 0x18, 0x17, 0xa0,
+ 0xa8, 0xfa, 0x89, 0x49
+};
+static const u8 enc_key051[] __initconst = {
+ 0x36, 0x37, 0x2a, 0xbc, 0xdb, 0x78, 0xe0, 0x27,
+ 0x96, 0x46, 0xac, 0x3d, 0x17, 0x6b, 0x96, 0x74,
+ 0xe9, 0x15, 0x4e, 0xec, 0xf0, 0xd5, 0x46, 0x9c,
+ 0x65, 0x1e, 0xc7, 0xe1, 0x6b, 0x4c, 0x11, 0x99
+};
+
+/* wycheproof - misc */
+static const u8 enc_input052[] __initconst = {
+ 0xa6, 0x67, 0x47, 0xc8, 0x9e, 0x85, 0x7a, 0xf3,
+ 0xa1, 0x8e, 0x2c, 0x79, 0x50, 0x00, 0x87, 0xed
+};
+static const u8 enc_output052[] __initconst = {
+ 0xca, 0x82, 0xbf, 0xf3, 0xe2, 0xf3, 0x10, 0xcc,
+ 0xc9, 0x76, 0x67, 0x2c, 0x44, 0x15, 0xe6, 0x9b,
+ 0x57, 0x63, 0x8c, 0x62, 0xa5, 0xd8, 0x5d, 0xed,
+ 0x77, 0x4f, 0x91, 0x3c, 0x81, 0x3e, 0xa0, 0x32
+};
+static const u8 enc_assoc052[] __initconst = {
+ 0x3f, 0x2d, 0xd4, 0x9b, 0xbf, 0x09, 0xd6, 0x9a,
+ 0x78, 0xa3, 0xd8, 0x0e, 0xa2, 0x56, 0x66, 0x14,
+ 0xfc, 0x37, 0x94, 0x74, 0x19, 0x6c, 0x1a, 0xae,
+ 0x84, 0x58, 0x3d, 0xa7, 0x3d, 0x7f, 0xf8, 0x5c,
+ 0x6f, 0x42, 0xca, 0x42, 0x05, 0x6a, 0x97, 0x92,
+ 0xcc, 0x1b, 0x9f, 0xb3, 0xc7, 0xd2, 0x61
+};
+static const u8 enc_nonce052[] __initconst = {
+ 0x84, 0xc8, 0x7d, 0xae, 0x4e, 0xee, 0x27, 0x73,
+ 0x0e, 0xc3, 0x5d, 0x12
+};
+static const u8 enc_key052[] __initconst = {
+ 0x9f, 0x14, 0x79, 0xed, 0x09, 0x7d, 0x7f, 0xe5,
+ 0x29, 0xc1, 0x1f, 0x2f, 0x5a, 0xdd, 0x9a, 0xaf,
+ 0xf4, 0xa1, 0xca, 0x0b, 0x68, 0x99, 0x7a, 0x2c,
+ 0xb7, 0xf7, 0x97, 0x49, 0xbd, 0x90, 0xaa, 0xf4
+};
+
+/* wycheproof - misc */
+static const u8 enc_input053[] __initconst = {
+ 0x25, 0x6d, 0x40, 0x88, 0x80, 0x94, 0x17, 0x83,
+ 0x55, 0xd3, 0x04, 0x84, 0x64, 0x43, 0xfe, 0xe8,
+ 0xdf, 0x99, 0x47, 0x03, 0x03, 0xfb, 0x3b, 0x7b,
+ 0x80, 0xe0, 0x30, 0xbe, 0xeb, 0xd3, 0x29, 0xbe
+};
+static const u8 enc_output053[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0xe6, 0xd3, 0xd7, 0x32, 0x4a, 0x1c, 0xbb, 0xa7,
+ 0x77, 0xbb, 0xb0, 0xec, 0xdd, 0xa3, 0x78, 0x07
+};
+static const u8 enc_assoc053[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+static const u8 enc_nonce053[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x01, 0xee, 0x32, 0x00
+};
+static const u8 enc_key053[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - misc */
+static const u8 enc_input054[] __initconst = {
+ 0x25, 0x6d, 0x40, 0x88, 0x80, 0x94, 0x17, 0x83,
+ 0x55, 0xd3, 0x04, 0x84, 0x64, 0x43, 0xfe, 0xe8,
+ 0xdf, 0x99, 0x47, 0x03, 0x03, 0xfb, 0x3b, 0x7b,
+ 0x80, 0xe0, 0x30, 0xbe, 0xeb, 0xd3, 0x29, 0xbe,
+ 0xe3, 0xbc, 0xdb, 0x5b, 0x1e, 0xde, 0xfc, 0xfe,
+ 0x8b, 0xcd, 0xa1, 0xb6, 0xa1, 0x5c, 0x8c, 0x2b,
+ 0x08, 0x69, 0xff, 0xd2, 0xec, 0x5e, 0x26, 0xe5,
+ 0x53, 0xb7, 0xb2, 0x27, 0xfe, 0x87, 0xfd, 0xbd
+};
+static const u8 enc_output054[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x06, 0x2d, 0xe6, 0x79, 0x5f, 0x27, 0x4f, 0xd2,
+ 0xa3, 0x05, 0xd7, 0x69, 0x80, 0xbc, 0x9c, 0xce
+};
+static const u8 enc_assoc054[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+static const u8 enc_nonce054[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x01, 0xee, 0x32, 0x00
+};
+static const u8 enc_key054[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - misc */
+static const u8 enc_input055[] __initconst = {
+ 0x25, 0x6d, 0x40, 0x88, 0x80, 0x94, 0x17, 0x83,
+ 0x55, 0xd3, 0x04, 0x84, 0x64, 0x43, 0xfe, 0xe8,
+ 0xdf, 0x99, 0x47, 0x03, 0x03, 0xfb, 0x3b, 0x7b,
+ 0x80, 0xe0, 0x30, 0xbe, 0xeb, 0xd3, 0x29, 0xbe,
+ 0xe3, 0xbc, 0xdb, 0x5b, 0x1e, 0xde, 0xfc, 0xfe,
+ 0x8b, 0xcd, 0xa1, 0xb6, 0xa1, 0x5c, 0x8c, 0x2b,
+ 0x08, 0x69, 0xff, 0xd2, 0xec, 0x5e, 0x26, 0xe5,
+ 0x53, 0xb7, 0xb2, 0x27, 0xfe, 0x87, 0xfd, 0xbd,
+ 0x7a, 0xda, 0x44, 0x42, 0x42, 0x69, 0xbf, 0xfa,
+ 0x55, 0x27, 0xf2, 0x70, 0xac, 0xf6, 0x85, 0x02,
+ 0xb7, 0x4c, 0x5a, 0xe2, 0xe6, 0x0c, 0x05, 0x80,
+ 0x98, 0x1a, 0x49, 0x38, 0x45, 0x93, 0x92, 0xc4,
+ 0x9b, 0xb2, 0xf2, 0x84, 0xb6, 0x46, 0xef, 0xc7,
+ 0xf3, 0xf0, 0xb1, 0x36, 0x1d, 0xc3, 0x48, 0xed,
+ 0x77, 0xd3, 0x0b, 0xc5, 0x76, 0x92, 0xed, 0x38,
+ 0xfb, 0xac, 0x01, 0x88, 0x38, 0x04, 0x88, 0xc7
+};
+static const u8 enc_output055[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0xd8, 0xb4, 0x79, 0x02, 0xba, 0xae, 0xaf, 0xb3,
+ 0x42, 0x03, 0x05, 0x15, 0x29, 0xaf, 0x28, 0x2e
+};
+static const u8 enc_assoc055[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+static const u8 enc_nonce055[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x01, 0xee, 0x32, 0x00
+};
+static const u8 enc_key055[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - misc */
+static const u8 enc_input056[] __initconst = {
+ 0xda, 0x92, 0xbf, 0x77, 0x7f, 0x6b, 0xe8, 0x7c,
+ 0xaa, 0x2c, 0xfb, 0x7b, 0x9b, 0xbc, 0x01, 0x17,
+ 0x20, 0x66, 0xb8, 0xfc, 0xfc, 0x04, 0xc4, 0x84,
+ 0x7f, 0x1f, 0xcf, 0x41, 0x14, 0x2c, 0xd6, 0x41
+};
+static const u8 enc_output056[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xb3, 0x89, 0x1c, 0x84, 0x9c, 0xb5, 0x2c, 0x27,
+ 0x74, 0x7e, 0xdf, 0xcf, 0x31, 0x21, 0x3b, 0xb6
+};
+static const u8 enc_assoc056[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce056[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x01, 0xee, 0x32, 0x00
+};
+static const u8 enc_key056[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - misc */
+static const u8 enc_input057[] __initconst = {
+ 0xda, 0x92, 0xbf, 0x77, 0x7f, 0x6b, 0xe8, 0x7c,
+ 0xaa, 0x2c, 0xfb, 0x7b, 0x9b, 0xbc, 0x01, 0x17,
+ 0x20, 0x66, 0xb8, 0xfc, 0xfc, 0x04, 0xc4, 0x84,
+ 0x7f, 0x1f, 0xcf, 0x41, 0x14, 0x2c, 0xd6, 0x41,
+ 0x1c, 0x43, 0x24, 0xa4, 0xe1, 0x21, 0x03, 0x01,
+ 0x74, 0x32, 0x5e, 0x49, 0x5e, 0xa3, 0x73, 0xd4,
+ 0xf7, 0x96, 0x00, 0x2d, 0x13, 0xa1, 0xd9, 0x1a,
+ 0xac, 0x48, 0x4d, 0xd8, 0x01, 0x78, 0x02, 0x42
+};
+static const u8 enc_output057[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xf0, 0xc1, 0x2d, 0x26, 0xef, 0x03, 0x02, 0x9b,
+ 0x62, 0xc0, 0x08, 0xda, 0x27, 0xc5, 0xdc, 0x68
+};
+static const u8 enc_assoc057[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce057[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x01, 0xee, 0x32, 0x00
+};
+static const u8 enc_key057[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - misc */
+static const u8 enc_input058[] __initconst = {
+ 0xda, 0x92, 0xbf, 0x77, 0x7f, 0x6b, 0xe8, 0x7c,
+ 0xaa, 0x2c, 0xfb, 0x7b, 0x9b, 0xbc, 0x01, 0x17,
+ 0x20, 0x66, 0xb8, 0xfc, 0xfc, 0x04, 0xc4, 0x84,
+ 0x7f, 0x1f, 0xcf, 0x41, 0x14, 0x2c, 0xd6, 0x41,
+ 0x1c, 0x43, 0x24, 0xa4, 0xe1, 0x21, 0x03, 0x01,
+ 0x74, 0x32, 0x5e, 0x49, 0x5e, 0xa3, 0x73, 0xd4,
+ 0xf7, 0x96, 0x00, 0x2d, 0x13, 0xa1, 0xd9, 0x1a,
+ 0xac, 0x48, 0x4d, 0xd8, 0x01, 0x78, 0x02, 0x42,
+ 0x85, 0x25, 0xbb, 0xbd, 0xbd, 0x96, 0x40, 0x05,
+ 0xaa, 0xd8, 0x0d, 0x8f, 0x53, 0x09, 0x7a, 0xfd,
+ 0x48, 0xb3, 0xa5, 0x1d, 0x19, 0xf3, 0xfa, 0x7f,
+ 0x67, 0xe5, 0xb6, 0xc7, 0xba, 0x6c, 0x6d, 0x3b,
+ 0x64, 0x4d, 0x0d, 0x7b, 0x49, 0xb9, 0x10, 0x38,
+ 0x0c, 0x0f, 0x4e, 0xc9, 0xe2, 0x3c, 0xb7, 0x12,
+ 0x88, 0x2c, 0xf4, 0x3a, 0x89, 0x6d, 0x12, 0xc7,
+ 0x04, 0x53, 0xfe, 0x77, 0xc7, 0xfb, 0x77, 0x38
+};
+static const u8 enc_output058[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xee, 0x65, 0x78, 0x30, 0x01, 0xc2, 0x56, 0x91,
+ 0xfa, 0x28, 0xd0, 0xf5, 0xf1, 0xc1, 0xd7, 0x62
+};
+static const u8 enc_assoc058[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce058[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x01, 0xee, 0x32, 0x00
+};
+static const u8 enc_key058[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - misc */
+static const u8 enc_input059[] __initconst = {
+ 0x25, 0x6d, 0x40, 0x08, 0x80, 0x94, 0x17, 0x03,
+ 0x55, 0xd3, 0x04, 0x04, 0x64, 0x43, 0xfe, 0x68,
+ 0xdf, 0x99, 0x47, 0x83, 0x03, 0xfb, 0x3b, 0xfb,
+ 0x80, 0xe0, 0x30, 0x3e, 0xeb, 0xd3, 0x29, 0x3e
+};
+static const u8 enc_output059[] __initconst = {
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x79, 0xba, 0x7a, 0x29, 0xf5, 0xa7, 0xbb, 0x75,
+ 0x79, 0x7a, 0xf8, 0x7a, 0x61, 0x01, 0x29, 0xa4
+};
+static const u8 enc_assoc059[] __initconst = {
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80
+};
+static const u8 enc_nonce059[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x01, 0xee, 0x32, 0x00
+};
+static const u8 enc_key059[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - misc */
+static const u8 enc_input060[] __initconst = {
+ 0x25, 0x6d, 0x40, 0x08, 0x80, 0x94, 0x17, 0x03,
+ 0x55, 0xd3, 0x04, 0x04, 0x64, 0x43, 0xfe, 0x68,
+ 0xdf, 0x99, 0x47, 0x83, 0x03, 0xfb, 0x3b, 0xfb,
+ 0x80, 0xe0, 0x30, 0x3e, 0xeb, 0xd3, 0x29, 0x3e,
+ 0xe3, 0xbc, 0xdb, 0xdb, 0x1e, 0xde, 0xfc, 0x7e,
+ 0x8b, 0xcd, 0xa1, 0x36, 0xa1, 0x5c, 0x8c, 0xab,
+ 0x08, 0x69, 0xff, 0x52, 0xec, 0x5e, 0x26, 0x65,
+ 0x53, 0xb7, 0xb2, 0xa7, 0xfe, 0x87, 0xfd, 0x3d
+};
+static const u8 enc_output060[] __initconst = {
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x36, 0xb1, 0x74, 0x38, 0x19, 0xe1, 0xb9, 0xba,
+ 0x15, 0x51, 0xe8, 0xed, 0x92, 0x2a, 0x95, 0x9a
+};
+static const u8 enc_assoc060[] __initconst = {
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80
+};
+static const u8 enc_nonce060[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x01, 0xee, 0x32, 0x00
+};
+static const u8 enc_key060[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - misc */
+static const u8 enc_input061[] __initconst = {
+ 0x25, 0x6d, 0x40, 0x08, 0x80, 0x94, 0x17, 0x03,
+ 0x55, 0xd3, 0x04, 0x04, 0x64, 0x43, 0xfe, 0x68,
+ 0xdf, 0x99, 0x47, 0x83, 0x03, 0xfb, 0x3b, 0xfb,
+ 0x80, 0xe0, 0x30, 0x3e, 0xeb, 0xd3, 0x29, 0x3e,
+ 0xe3, 0xbc, 0xdb, 0xdb, 0x1e, 0xde, 0xfc, 0x7e,
+ 0x8b, 0xcd, 0xa1, 0x36, 0xa1, 0x5c, 0x8c, 0xab,
+ 0x08, 0x69, 0xff, 0x52, 0xec, 0x5e, 0x26, 0x65,
+ 0x53, 0xb7, 0xb2, 0xa7, 0xfe, 0x87, 0xfd, 0x3d,
+ 0x7a, 0xda, 0x44, 0xc2, 0x42, 0x69, 0xbf, 0x7a,
+ 0x55, 0x27, 0xf2, 0xf0, 0xac, 0xf6, 0x85, 0x82,
+ 0xb7, 0x4c, 0x5a, 0x62, 0xe6, 0x0c, 0x05, 0x00,
+ 0x98, 0x1a, 0x49, 0xb8, 0x45, 0x93, 0x92, 0x44,
+ 0x9b, 0xb2, 0xf2, 0x04, 0xb6, 0x46, 0xef, 0x47,
+ 0xf3, 0xf0, 0xb1, 0xb6, 0x1d, 0xc3, 0x48, 0x6d,
+ 0x77, 0xd3, 0x0b, 0x45, 0x76, 0x92, 0xed, 0xb8,
+ 0xfb, 0xac, 0x01, 0x08, 0x38, 0x04, 0x88, 0x47
+};
+static const u8 enc_output061[] __initconst = {
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0xfe, 0xac, 0x49, 0x55, 0x55, 0x4e, 0x80, 0x6f,
+ 0x3a, 0x19, 0x02, 0xe2, 0x44, 0x32, 0xc0, 0x8a
+};
+static const u8 enc_assoc061[] __initconst = {
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80
+};
+static const u8 enc_nonce061[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x01, 0xee, 0x32, 0x00
+};
+static const u8 enc_key061[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - misc */
+static const u8 enc_input062[] __initconst = {
+ 0xda, 0x92, 0xbf, 0xf7, 0x7f, 0x6b, 0xe8, 0xfc,
+ 0xaa, 0x2c, 0xfb, 0xfb, 0x9b, 0xbc, 0x01, 0x97,
+ 0x20, 0x66, 0xb8, 0x7c, 0xfc, 0x04, 0xc4, 0x04,
+ 0x7f, 0x1f, 0xcf, 0xc1, 0x14, 0x2c, 0xd6, 0xc1
+};
+static const u8 enc_output062[] __initconst = {
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0x20, 0xa3, 0x79, 0x8d, 0xf1, 0x29, 0x2c, 0x59,
+ 0x72, 0xbf, 0x97, 0x41, 0xae, 0xc3, 0x8a, 0x19
+};
+static const u8 enc_assoc062[] __initconst = {
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f
+};
+static const u8 enc_nonce062[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x01, 0xee, 0x32, 0x00
+};
+static const u8 enc_key062[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - misc */
+static const u8 enc_input063[] __initconst = {
+ 0xda, 0x92, 0xbf, 0xf7, 0x7f, 0x6b, 0xe8, 0xfc,
+ 0xaa, 0x2c, 0xfb, 0xfb, 0x9b, 0xbc, 0x01, 0x97,
+ 0x20, 0x66, 0xb8, 0x7c, 0xfc, 0x04, 0xc4, 0x04,
+ 0x7f, 0x1f, 0xcf, 0xc1, 0x14, 0x2c, 0xd6, 0xc1,
+ 0x1c, 0x43, 0x24, 0x24, 0xe1, 0x21, 0x03, 0x81,
+ 0x74, 0x32, 0x5e, 0xc9, 0x5e, 0xa3, 0x73, 0x54,
+ 0xf7, 0x96, 0x00, 0xad, 0x13, 0xa1, 0xd9, 0x9a,
+ 0xac, 0x48, 0x4d, 0x58, 0x01, 0x78, 0x02, 0xc2
+};
+static const u8 enc_output063[] __initconst = {
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xc0, 0x3d, 0x9f, 0x67, 0x35, 0x4a, 0x97, 0xb2,
+ 0xf0, 0x74, 0xf7, 0x55, 0x15, 0x57, 0xe4, 0x9c
+};
+static const u8 enc_assoc063[] __initconst = {
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f
+};
+static const u8 enc_nonce063[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x01, 0xee, 0x32, 0x00
+};
+static const u8 enc_key063[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - misc */
+static const u8 enc_input064[] __initconst = {
+ 0xda, 0x92, 0xbf, 0xf7, 0x7f, 0x6b, 0xe8, 0xfc,
+ 0xaa, 0x2c, 0xfb, 0xfb, 0x9b, 0xbc, 0x01, 0x97,
+ 0x20, 0x66, 0xb8, 0x7c, 0xfc, 0x04, 0xc4, 0x04,
+ 0x7f, 0x1f, 0xcf, 0xc1, 0x14, 0x2c, 0xd6, 0xc1,
+ 0x1c, 0x43, 0x24, 0x24, 0xe1, 0x21, 0x03, 0x81,
+ 0x74, 0x32, 0x5e, 0xc9, 0x5e, 0xa3, 0x73, 0x54,
+ 0xf7, 0x96, 0x00, 0xad, 0x13, 0xa1, 0xd9, 0x9a,
+ 0xac, 0x48, 0x4d, 0x58, 0x01, 0x78, 0x02, 0xc2,
+ 0x85, 0x25, 0xbb, 0x3d, 0xbd, 0x96, 0x40, 0x85,
+ 0xaa, 0xd8, 0x0d, 0x0f, 0x53, 0x09, 0x7a, 0x7d,
+ 0x48, 0xb3, 0xa5, 0x9d, 0x19, 0xf3, 0xfa, 0xff,
+ 0x67, 0xe5, 0xb6, 0x47, 0xba, 0x6c, 0x6d, 0xbb,
+ 0x64, 0x4d, 0x0d, 0xfb, 0x49, 0xb9, 0x10, 0xb8,
+ 0x0c, 0x0f, 0x4e, 0x49, 0xe2, 0x3c, 0xb7, 0x92,
+ 0x88, 0x2c, 0xf4, 0xba, 0x89, 0x6d, 0x12, 0x47,
+ 0x04, 0x53, 0xfe, 0xf7, 0xc7, 0xfb, 0x77, 0xb8
+};
+static const u8 enc_output064[] __initconst = {
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xc8, 0x6d, 0xa8, 0xdd, 0x65, 0x22, 0x86, 0xd5,
+ 0x02, 0x13, 0xd3, 0x28, 0xd6, 0x3e, 0x40, 0x06
+};
+static const u8 enc_assoc064[] __initconst = {
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f
+};
+static const u8 enc_nonce064[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x01, 0xee, 0x32, 0x00
+};
+static const u8 enc_key064[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - misc */
+static const u8 enc_input065[] __initconst = {
+ 0x5a, 0x92, 0xbf, 0x77, 0xff, 0x6b, 0xe8, 0x7c,
+ 0x2a, 0x2c, 0xfb, 0x7b, 0x1b, 0xbc, 0x01, 0x17,
+ 0xa0, 0x66, 0xb8, 0xfc, 0x7c, 0x04, 0xc4, 0x84,
+ 0xff, 0x1f, 0xcf, 0x41, 0x94, 0x2c, 0xd6, 0x41
+};
+static const u8 enc_output065[] __initconst = {
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0xbe, 0xde, 0x90, 0x83, 0xce, 0xb3, 0x6d, 0xdf,
+ 0xe5, 0xfa, 0x81, 0x1f, 0x95, 0x47, 0x1c, 0x67
+};
+static const u8 enc_assoc065[] __initconst = {
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce065[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x01, 0xee, 0x32, 0x00
+};
+static const u8 enc_key065[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - misc */
+static const u8 enc_input066[] __initconst = {
+ 0x5a, 0x92, 0xbf, 0x77, 0xff, 0x6b, 0xe8, 0x7c,
+ 0x2a, 0x2c, 0xfb, 0x7b, 0x1b, 0xbc, 0x01, 0x17,
+ 0xa0, 0x66, 0xb8, 0xfc, 0x7c, 0x04, 0xc4, 0x84,
+ 0xff, 0x1f, 0xcf, 0x41, 0x94, 0x2c, 0xd6, 0x41,
+ 0x9c, 0x43, 0x24, 0xa4, 0x61, 0x21, 0x03, 0x01,
+ 0xf4, 0x32, 0x5e, 0x49, 0xde, 0xa3, 0x73, 0xd4,
+ 0x77, 0x96, 0x00, 0x2d, 0x93, 0xa1, 0xd9, 0x1a,
+ 0x2c, 0x48, 0x4d, 0xd8, 0x81, 0x78, 0x02, 0x42
+};
+static const u8 enc_output066[] __initconst = {
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x30, 0x08, 0x74, 0xbb, 0x06, 0x92, 0xb6, 0x89,
+ 0xde, 0xad, 0x9a, 0xe1, 0x5b, 0x06, 0x73, 0x90
+};
+static const u8 enc_assoc066[] __initconst = {
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce066[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x01, 0xee, 0x32, 0x00
+};
+static const u8 enc_key066[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - misc */
+static const u8 enc_input067[] __initconst = {
+ 0x5a, 0x92, 0xbf, 0x77, 0xff, 0x6b, 0xe8, 0x7c,
+ 0x2a, 0x2c, 0xfb, 0x7b, 0x1b, 0xbc, 0x01, 0x17,
+ 0xa0, 0x66, 0xb8, 0xfc, 0x7c, 0x04, 0xc4, 0x84,
+ 0xff, 0x1f, 0xcf, 0x41, 0x94, 0x2c, 0xd6, 0x41,
+ 0x9c, 0x43, 0x24, 0xa4, 0x61, 0x21, 0x03, 0x01,
+ 0xf4, 0x32, 0x5e, 0x49, 0xde, 0xa3, 0x73, 0xd4,
+ 0x77, 0x96, 0x00, 0x2d, 0x93, 0xa1, 0xd9, 0x1a,
+ 0x2c, 0x48, 0x4d, 0xd8, 0x81, 0x78, 0x02, 0x42,
+ 0x05, 0x25, 0xbb, 0xbd, 0x3d, 0x96, 0x40, 0x05,
+ 0x2a, 0xd8, 0x0d, 0x8f, 0xd3, 0x09, 0x7a, 0xfd,
+ 0xc8, 0xb3, 0xa5, 0x1d, 0x99, 0xf3, 0xfa, 0x7f,
+ 0xe7, 0xe5, 0xb6, 0xc7, 0x3a, 0x6c, 0x6d, 0x3b,
+ 0xe4, 0x4d, 0x0d, 0x7b, 0xc9, 0xb9, 0x10, 0x38,
+ 0x8c, 0x0f, 0x4e, 0xc9, 0x62, 0x3c, 0xb7, 0x12,
+ 0x08, 0x2c, 0xf4, 0x3a, 0x09, 0x6d, 0x12, 0xc7,
+ 0x84, 0x53, 0xfe, 0x77, 0x47, 0xfb, 0x77, 0x38
+};
+static const u8 enc_output067[] __initconst = {
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x99, 0xca, 0xd8, 0x5f, 0x45, 0xca, 0x40, 0x94,
+ 0x2d, 0x0d, 0x4d, 0x5e, 0x95, 0x0a, 0xde, 0x22
+};
+static const u8 enc_assoc067[] __initconst = {
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff,
+ 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce067[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x01, 0xee, 0x32, 0x00
+};
+static const u8 enc_key067[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - misc */
+static const u8 enc_input068[] __initconst = {
+ 0x25, 0x6d, 0x40, 0x88, 0x7f, 0x6b, 0xe8, 0x7c,
+ 0x55, 0xd3, 0x04, 0x84, 0x9b, 0xbc, 0x01, 0x17,
+ 0xdf, 0x99, 0x47, 0x03, 0xfc, 0x04, 0xc4, 0x84,
+ 0x80, 0xe0, 0x30, 0xbe, 0x14, 0x2c, 0xd6, 0x41
+};
+static const u8 enc_output068[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x8b, 0xbe, 0x14, 0x52, 0x72, 0xe7, 0xc2, 0xd9,
+ 0xa1, 0x89, 0x1a, 0x3a, 0xb0, 0x98, 0x3d, 0x9d
+};
+static const u8 enc_assoc068[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce068[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x01, 0xee, 0x32, 0x00
+};
+static const u8 enc_key068[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - misc */
+static const u8 enc_input069[] __initconst = {
+ 0x25, 0x6d, 0x40, 0x88, 0x7f, 0x6b, 0xe8, 0x7c,
+ 0x55, 0xd3, 0x04, 0x84, 0x9b, 0xbc, 0x01, 0x17,
+ 0xdf, 0x99, 0x47, 0x03, 0xfc, 0x04, 0xc4, 0x84,
+ 0x80, 0xe0, 0x30, 0xbe, 0x14, 0x2c, 0xd6, 0x41,
+ 0xe3, 0xbc, 0xdb, 0x5b, 0xe1, 0x21, 0x03, 0x01,
+ 0x8b, 0xcd, 0xa1, 0xb6, 0x5e, 0xa3, 0x73, 0xd4,
+ 0x08, 0x69, 0xff, 0xd2, 0x13, 0xa1, 0xd9, 0x1a,
+ 0x53, 0xb7, 0xb2, 0x27, 0x01, 0x78, 0x02, 0x42
+};
+static const u8 enc_output069[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x3b, 0x41, 0x86, 0x19, 0x13, 0xa8, 0xf6, 0xde,
+ 0x7f, 0x61, 0xe2, 0x25, 0x63, 0x1b, 0xc3, 0x82
+};
+static const u8 enc_assoc069[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce069[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x01, 0xee, 0x32, 0x00
+};
+static const u8 enc_key069[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - misc */
+static const u8 enc_input070[] __initconst = {
+ 0x25, 0x6d, 0x40, 0x88, 0x7f, 0x6b, 0xe8, 0x7c,
+ 0x55, 0xd3, 0x04, 0x84, 0x9b, 0xbc, 0x01, 0x17,
+ 0xdf, 0x99, 0x47, 0x03, 0xfc, 0x04, 0xc4, 0x84,
+ 0x80, 0xe0, 0x30, 0xbe, 0x14, 0x2c, 0xd6, 0x41,
+ 0xe3, 0xbc, 0xdb, 0x5b, 0xe1, 0x21, 0x03, 0x01,
+ 0x8b, 0xcd, 0xa1, 0xb6, 0x5e, 0xa3, 0x73, 0xd4,
+ 0x08, 0x69, 0xff, 0xd2, 0x13, 0xa1, 0xd9, 0x1a,
+ 0x53, 0xb7, 0xb2, 0x27, 0x01, 0x78, 0x02, 0x42,
+ 0x7a, 0xda, 0x44, 0x42, 0xbd, 0x96, 0x40, 0x05,
+ 0x55, 0x27, 0xf2, 0x70, 0x53, 0x09, 0x7a, 0xfd,
+ 0xb7, 0x4c, 0x5a, 0xe2, 0x19, 0xf3, 0xfa, 0x7f,
+ 0x98, 0x1a, 0x49, 0x38, 0xba, 0x6c, 0x6d, 0x3b,
+ 0x9b, 0xb2, 0xf2, 0x84, 0x49, 0xb9, 0x10, 0x38,
+ 0xf3, 0xf0, 0xb1, 0x36, 0xe2, 0x3c, 0xb7, 0x12,
+ 0x77, 0xd3, 0x0b, 0xc5, 0x89, 0x6d, 0x12, 0xc7,
+ 0xfb, 0xac, 0x01, 0x88, 0xc7, 0xfb, 0x77, 0x38
+};
+static const u8 enc_output070[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x84, 0x28, 0xbc, 0xf0, 0x23, 0xec, 0x6b, 0xf3,
+ 0x1f, 0xd9, 0xef, 0xb2, 0x03, 0xff, 0x08, 0x71
+};
+static const u8 enc_assoc070[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce070[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x01, 0xee, 0x32, 0x00
+};
+static const u8 enc_key070[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - misc */
+static const u8 enc_input071[] __initconst = {
+ 0xda, 0x92, 0xbf, 0x77, 0x80, 0x94, 0x17, 0x83,
+ 0xaa, 0x2c, 0xfb, 0x7b, 0x64, 0x43, 0xfe, 0xe8,
+ 0x20, 0x66, 0xb8, 0xfc, 0x03, 0xfb, 0x3b, 0x7b,
+ 0x7f, 0x1f, 0xcf, 0x41, 0xeb, 0xd3, 0x29, 0xbe
+};
+static const u8 enc_output071[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0x13, 0x9f, 0xdf, 0x64, 0x74, 0xea, 0x24, 0xf5,
+ 0x49, 0xb0, 0x75, 0x82, 0x5f, 0x2c, 0x76, 0x20
+};
+static const u8 enc_assoc071[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00
+};
+static const u8 enc_nonce071[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x01, 0xee, 0x32, 0x00
+};
+static const u8 enc_key071[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - misc */
+static const u8 enc_input072[] __initconst = {
+ 0xda, 0x92, 0xbf, 0x77, 0x80, 0x94, 0x17, 0x83,
+ 0xaa, 0x2c, 0xfb, 0x7b, 0x64, 0x43, 0xfe, 0xe8,
+ 0x20, 0x66, 0xb8, 0xfc, 0x03, 0xfb, 0x3b, 0x7b,
+ 0x7f, 0x1f, 0xcf, 0x41, 0xeb, 0xd3, 0x29, 0xbe,
+ 0x1c, 0x43, 0x24, 0xa4, 0x1e, 0xde, 0xfc, 0xfe,
+ 0x74, 0x32, 0x5e, 0x49, 0xa1, 0x5c, 0x8c, 0x2b,
+ 0xf7, 0x96, 0x00, 0x2d, 0xec, 0x5e, 0x26, 0xe5,
+ 0xac, 0x48, 0x4d, 0xd8, 0xfe, 0x87, 0xfd, 0xbd
+};
+static const u8 enc_output072[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xbb, 0xad, 0x8d, 0x86, 0x3b, 0x83, 0x5a, 0x8e,
+ 0x86, 0x64, 0xfd, 0x1d, 0x45, 0x66, 0xb6, 0xb4
+};
+static const u8 enc_assoc072[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00
+};
+static const u8 enc_nonce072[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x01, 0xee, 0x32, 0x00
+};
+static const u8 enc_key072[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - misc */
+static const u8 enc_input073[] __initconst = {
+ 0xda, 0x92, 0xbf, 0x77, 0x80, 0x94, 0x17, 0x83,
+ 0xaa, 0x2c, 0xfb, 0x7b, 0x64, 0x43, 0xfe, 0xe8,
+ 0x20, 0x66, 0xb8, 0xfc, 0x03, 0xfb, 0x3b, 0x7b,
+ 0x7f, 0x1f, 0xcf, 0x41, 0xeb, 0xd3, 0x29, 0xbe,
+ 0x1c, 0x43, 0x24, 0xa4, 0x1e, 0xde, 0xfc, 0xfe,
+ 0x74, 0x32, 0x5e, 0x49, 0xa1, 0x5c, 0x8c, 0x2b,
+ 0xf7, 0x96, 0x00, 0x2d, 0xec, 0x5e, 0x26, 0xe5,
+ 0xac, 0x48, 0x4d, 0xd8, 0xfe, 0x87, 0xfd, 0xbd,
+ 0x85, 0x25, 0xbb, 0xbd, 0x42, 0x69, 0xbf, 0xfa,
+ 0xaa, 0xd8, 0x0d, 0x8f, 0xac, 0xf6, 0x85, 0x02,
+ 0x48, 0xb3, 0xa5, 0x1d, 0xe6, 0x0c, 0x05, 0x80,
+ 0x67, 0xe5, 0xb6, 0xc7, 0x45, 0x93, 0x92, 0xc4,
+ 0x64, 0x4d, 0x0d, 0x7b, 0xb6, 0x46, 0xef, 0xc7,
+ 0x0c, 0x0f, 0x4e, 0xc9, 0x1d, 0xc3, 0x48, 0xed,
+ 0x88, 0x2c, 0xf4, 0x3a, 0x76, 0x92, 0xed, 0x38,
+ 0x04, 0x53, 0xfe, 0x77, 0x38, 0x04, 0x88, 0xc7
+};
+static const u8 enc_output073[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0x42, 0xf2, 0x35, 0x42, 0x97, 0x84, 0x9a, 0x51,
+ 0x1d, 0x53, 0xe5, 0x57, 0x17, 0x72, 0xf7, 0x1f
+};
+static const u8 enc_assoc073[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00
+};
+static const u8 enc_nonce073[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x01, 0xee, 0x32, 0x00
+};
+static const u8 enc_key073[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - checking for int overflows */
+static const u8 enc_input074[] __initconst = {
+ 0xd4, 0x50, 0x0b, 0xf0, 0x09, 0x49, 0x35, 0x51,
+ 0xc3, 0x80, 0xad, 0xf5, 0x2c, 0x57, 0x3a, 0x69,
+ 0xdf, 0x7e, 0x8b, 0x76, 0x24, 0x63, 0x33, 0x0f,
+ 0xac, 0xc1, 0x6a, 0x57, 0x26, 0xbe, 0x71, 0x90,
+ 0xc6, 0x3c, 0x5a, 0x1c, 0x92, 0x65, 0x84, 0xa0,
+ 0x96, 0x75, 0x68, 0x28, 0xdc, 0xdc, 0x64, 0xac,
+ 0xdf, 0x96, 0x3d, 0x93, 0x1b, 0xf1, 0xda, 0xe2,
+ 0x38, 0xf3, 0xf1, 0x57, 0x22, 0x4a, 0xc4, 0xb5,
+ 0x42, 0xd7, 0x85, 0xb0, 0xdd, 0x84, 0xdb, 0x6b,
+ 0xe3, 0xbc, 0x5a, 0x36, 0x63, 0xe8, 0x41, 0x49,
+ 0xff, 0xbe, 0xd0, 0x9e, 0x54, 0xf7, 0x8f, 0x16,
+ 0xa8, 0x22, 0x3b, 0x24, 0xcb, 0x01, 0x9f, 0x58,
+ 0xb2, 0x1b, 0x0e, 0x55, 0x1e, 0x7a, 0xa0, 0x73,
+ 0x27, 0x62, 0x95, 0x51, 0x37, 0x6c, 0xcb, 0xc3,
+ 0x93, 0x76, 0x71, 0xa0, 0x62, 0x9b, 0xd9, 0x5c,
+ 0x99, 0x15, 0xc7, 0x85, 0x55, 0x77, 0x1e, 0x7a
+};
+static const u8 enc_output074[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x0b, 0x30, 0x0d, 0x8d, 0xa5, 0x6c, 0x21, 0x85,
+ 0x75, 0x52, 0x79, 0x55, 0x3c, 0x4c, 0x82, 0xca
+};
+static const u8 enc_assoc074[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce074[] __initconst = {
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x00, 0x02, 0x50, 0x6e
+};
+static const u8 enc_key074[] __initconst = {
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30
+};
+
+/* wycheproof - checking for int overflows */
+static const u8 enc_input075[] __initconst = {
+ 0x7d, 0xe8, 0x7f, 0x67, 0x29, 0x94, 0x52, 0x75,
+ 0xd0, 0x65, 0x5d, 0xa4, 0xc7, 0xfd, 0xe4, 0x56,
+ 0x9e, 0x16, 0xf1, 0x11, 0xb5, 0xeb, 0x26, 0xc2,
+ 0x2d, 0x85, 0x9e, 0x3f, 0xf8, 0x22, 0xec, 0xed,
+ 0x3a, 0x6d, 0xd9, 0xa6, 0x0f, 0x22, 0x95, 0x7f,
+ 0x7b, 0x7c, 0x85, 0x7e, 0x88, 0x22, 0xeb, 0x9f,
+ 0xe0, 0xb8, 0xd7, 0x02, 0x21, 0x41, 0xf2, 0xd0,
+ 0xb4, 0x8f, 0x4b, 0x56, 0x12, 0xd3, 0x22, 0xa8,
+ 0x8d, 0xd0, 0xfe, 0x0b, 0x4d, 0x91, 0x79, 0x32,
+ 0x4f, 0x7c, 0x6c, 0x9e, 0x99, 0x0e, 0xfb, 0xd8,
+ 0x0e, 0x5e, 0xd6, 0x77, 0x58, 0x26, 0x49, 0x8b,
+ 0x1e, 0xfe, 0x0f, 0x71, 0xa0, 0xf3, 0xec, 0x5b,
+ 0x29, 0xcb, 0x28, 0xc2, 0x54, 0x0a, 0x7d, 0xcd,
+ 0x51, 0xb7, 0xda, 0xae, 0xe0, 0xff, 0x4a, 0x7f,
+ 0x3a, 0xc1, 0xee, 0x54, 0xc2, 0x9e, 0xe4, 0xc1,
+ 0x70, 0xde, 0x40, 0x8f, 0x66, 0x69, 0x21, 0x94
+};
+static const u8 enc_output075[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xc5, 0x78, 0xe2, 0xaa, 0x44, 0xd3, 0x09, 0xb7,
+ 0xb6, 0xa5, 0x19, 0x3b, 0xdc, 0x61, 0x18, 0xf5
+};
+static const u8 enc_assoc075[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce075[] __initconst = {
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x00, 0x03, 0x18, 0xa5
+};
+static const u8 enc_key075[] __initconst = {
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30
+};
+
+/* wycheproof - checking for int overflows */
+static const u8 enc_input076[] __initconst = {
+ 0x1b, 0x99, 0x6f, 0x9a, 0x3c, 0xcc, 0x67, 0x85,
+ 0xde, 0x22, 0xff, 0x5b, 0x8a, 0xdd, 0x95, 0x02,
+ 0xce, 0x03, 0xa0, 0xfa, 0xf5, 0x99, 0x2a, 0x09,
+ 0x52, 0x2c, 0xdd, 0x12, 0x06, 0xd2, 0x20, 0xb8,
+ 0xf8, 0xbd, 0x07, 0xd1, 0xf1, 0xf5, 0xa1, 0xbd,
+ 0x9a, 0x71, 0xd1, 0x1c, 0x7f, 0x57, 0x9b, 0x85,
+ 0x58, 0x18, 0xc0, 0x8d, 0x4d, 0xe0, 0x36, 0x39,
+ 0x31, 0x83, 0xb7, 0xf5, 0x90, 0xb3, 0x35, 0xae,
+ 0xd8, 0xde, 0x5b, 0x57, 0xb1, 0x3c, 0x5f, 0xed,
+ 0xe2, 0x44, 0x1c, 0x3e, 0x18, 0x4a, 0xa9, 0xd4,
+ 0x6e, 0x61, 0x59, 0x85, 0x06, 0xb3, 0xe1, 0x1c,
+ 0x43, 0xc6, 0x2c, 0xbc, 0xac, 0xec, 0xed, 0x33,
+ 0x19, 0x08, 0x75, 0xb0, 0x12, 0x21, 0x8b, 0x19,
+ 0x30, 0xfb, 0x7c, 0x38, 0xec, 0x45, 0xac, 0x11,
+ 0xc3, 0x53, 0xd0, 0xcf, 0x93, 0x8d, 0xcc, 0xb9,
+ 0xef, 0xad, 0x8f, 0xed, 0xbe, 0x46, 0xda, 0xa5
+};
+static const u8 enc_output076[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x4b, 0x0b, 0xda, 0x8a, 0xd0, 0x43, 0x83, 0x0d,
+ 0x83, 0x19, 0xab, 0x82, 0xc5, 0x0c, 0x76, 0x63
+};
+static const u8 enc_assoc076[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce076[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0xb4, 0xf0
+};
+static const u8 enc_key076[] __initconst = {
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30
+};
+
+/* wycheproof - checking for int overflows */
+static const u8 enc_input077[] __initconst = {
+ 0x86, 0xcb, 0xac, 0xae, 0x4d, 0x3f, 0x74, 0xae,
+ 0x01, 0x21, 0x3e, 0x05, 0x51, 0xcc, 0x15, 0x16,
+ 0x0e, 0xa1, 0xbe, 0x84, 0x08, 0xe3, 0xd5, 0xd7,
+ 0x4f, 0x01, 0x46, 0x49, 0x95, 0xa6, 0x9e, 0x61,
+ 0x76, 0xcb, 0x9e, 0x02, 0xb2, 0x24, 0x7e, 0xd2,
+ 0x99, 0x89, 0x2f, 0x91, 0x82, 0xa4, 0x5c, 0xaf,
+ 0x4c, 0x69, 0x40, 0x56, 0x11, 0x76, 0x6e, 0xdf,
+ 0xaf, 0xdc, 0x28, 0x55, 0x19, 0xea, 0x30, 0x48,
+ 0x0c, 0x44, 0xf0, 0x5e, 0x78, 0x1e, 0xac, 0xf8,
+ 0xfc, 0xec, 0xc7, 0x09, 0x0a, 0xbb, 0x28, 0xfa,
+ 0x5f, 0xd5, 0x85, 0xac, 0x8c, 0xda, 0x7e, 0x87,
+ 0x72, 0xe5, 0x94, 0xe4, 0xce, 0x6c, 0x88, 0x32,
+ 0x81, 0x93, 0x2e, 0x0f, 0x89, 0xf8, 0x77, 0xa1,
+ 0xf0, 0x4d, 0x9c, 0x32, 0xb0, 0x6c, 0xf9, 0x0b,
+ 0x0e, 0x76, 0x2b, 0x43, 0x0c, 0x4d, 0x51, 0x7c,
+ 0x97, 0x10, 0x70, 0x68, 0xf4, 0x98, 0xef, 0x7f
+};
+static const u8 enc_output077[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x4b, 0xc9, 0x8f, 0x72, 0xc4, 0x94, 0xc2, 0xa4,
+ 0x3c, 0x2b, 0x15, 0xa1, 0x04, 0x3f, 0x1c, 0xfa
+};
+static const u8 enc_assoc077[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce077[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0xfb, 0x66
+};
+static const u8 enc_key077[] __initconst = {
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30
+};
+
+/* wycheproof - checking for int overflows */
+static const u8 enc_input078[] __initconst = {
+ 0xfa, 0xb1, 0xcd, 0xdf, 0x4f, 0xe1, 0x98, 0xef,
+ 0x63, 0xad, 0xd8, 0x81, 0xd6, 0xea, 0xd6, 0xc5,
+ 0x76, 0x37, 0xbb, 0xe9, 0x20, 0x18, 0xca, 0x7c,
+ 0x0b, 0x96, 0xfb, 0xa0, 0x87, 0x1e, 0x93, 0x2d,
+ 0xb1, 0xfb, 0xf9, 0x07, 0x61, 0xbe, 0x25, 0xdf,
+ 0x8d, 0xfa, 0xf9, 0x31, 0xce, 0x57, 0x57, 0xe6,
+ 0x17, 0xb3, 0xd7, 0xa9, 0xf0, 0xbf, 0x0f, 0xfe,
+ 0x5d, 0x59, 0x1a, 0x33, 0xc1, 0x43, 0xb8, 0xf5,
+ 0x3f, 0xd0, 0xb5, 0xa1, 0x96, 0x09, 0xfd, 0x62,
+ 0xe5, 0xc2, 0x51, 0xa4, 0x28, 0x1a, 0x20, 0x0c,
+ 0xfd, 0xc3, 0x4f, 0x28, 0x17, 0x10, 0x40, 0x6f,
+ 0x4e, 0x37, 0x62, 0x54, 0x46, 0xff, 0x6e, 0xf2,
+ 0x24, 0x91, 0x3d, 0xeb, 0x0d, 0x89, 0xaf, 0x33,
+ 0x71, 0x28, 0xe3, 0xd1, 0x55, 0xd1, 0x6d, 0x3e,
+ 0xc3, 0x24, 0x60, 0x41, 0x43, 0x21, 0x43, 0xe9,
+ 0xab, 0x3a, 0x6d, 0x2c, 0xcc, 0x2f, 0x4d, 0x62
+};
+static const u8 enc_output078[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xf7, 0xe9, 0xe1, 0x51, 0xb0, 0x25, 0x33, 0xc7,
+ 0x46, 0x58, 0xbf, 0xc7, 0x73, 0x7c, 0x68, 0x0d
+};
+static const u8 enc_assoc078[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce078[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x38, 0xbb, 0x90
+};
+static const u8 enc_key078[] __initconst = {
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30
+};
+
+/* wycheproof - checking for int overflows */
+static const u8 enc_input079[] __initconst = {
+ 0x22, 0x72, 0x02, 0xbe, 0x7f, 0x35, 0x15, 0xe9,
+ 0xd1, 0xc0, 0x2e, 0xea, 0x2f, 0x19, 0x50, 0xb6,
+ 0x48, 0x1b, 0x04, 0x8a, 0x4c, 0x91, 0x50, 0x6c,
+ 0xb4, 0x0d, 0x50, 0x4e, 0x6c, 0x94, 0x9f, 0x82,
+ 0xd1, 0x97, 0xc2, 0x5a, 0xd1, 0x7d, 0xc7, 0x21,
+ 0x65, 0x11, 0x25, 0x78, 0x2a, 0xc7, 0xa7, 0x12,
+ 0x47, 0xfe, 0xae, 0xf3, 0x2f, 0x1f, 0x25, 0x0c,
+ 0xe4, 0xbb, 0x8f, 0x79, 0xac, 0xaa, 0x17, 0x9d,
+ 0x45, 0xa7, 0xb0, 0x54, 0x5f, 0x09, 0x24, 0x32,
+ 0x5e, 0xfa, 0x87, 0xd5, 0xe4, 0x41, 0xd2, 0x84,
+ 0x78, 0xc6, 0x1f, 0x22, 0x23, 0xee, 0x67, 0xc3,
+ 0xb4, 0x1f, 0x43, 0x94, 0x53, 0x5e, 0x2a, 0x24,
+ 0x36, 0x9a, 0x2e, 0x16, 0x61, 0x3c, 0x45, 0x94,
+ 0x90, 0xc1, 0x4f, 0xb1, 0xd7, 0x55, 0xfe, 0x53,
+ 0xfb, 0xe1, 0xee, 0x45, 0xb1, 0xb2, 0x1f, 0x71,
+ 0x62, 0xe2, 0xfc, 0xaa, 0x74, 0x2a, 0xbe, 0xfd
+};
+static const u8 enc_output079[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x79, 0x5b, 0xcf, 0xf6, 0x47, 0xc5, 0x53, 0xc2,
+ 0xe4, 0xeb, 0x6e, 0x0e, 0xaf, 0xd9, 0xe0, 0x4e
+};
+static const u8 enc_assoc079[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce079[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x70, 0x48, 0x4a
+};
+static const u8 enc_key079[] __initconst = {
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30
+};
+
+/* wycheproof - checking for int overflows */
+static const u8 enc_input080[] __initconst = {
+ 0xfa, 0xe5, 0x83, 0x45, 0xc1, 0x6c, 0xb0, 0xf5,
+ 0xcc, 0x53, 0x7f, 0x2b, 0x1b, 0x34, 0x69, 0xc9,
+ 0x69, 0x46, 0x3b, 0x3e, 0xa7, 0x1b, 0xcf, 0x6b,
+ 0x98, 0xd6, 0x69, 0xa8, 0xe6, 0x0e, 0x04, 0xfc,
+ 0x08, 0xd5, 0xfd, 0x06, 0x9c, 0x36, 0x26, 0x38,
+ 0xe3, 0x40, 0x0e, 0xf4, 0xcb, 0x24, 0x2e, 0x27,
+ 0xe2, 0x24, 0x5e, 0x68, 0xcb, 0x9e, 0xc5, 0x83,
+ 0xda, 0x53, 0x40, 0xb1, 0x2e, 0xdf, 0x42, 0x3b,
+ 0x73, 0x26, 0xad, 0x20, 0xfe, 0xeb, 0x57, 0xda,
+ 0xca, 0x2e, 0x04, 0x67, 0xa3, 0x28, 0x99, 0xb4,
+ 0x2d, 0xf8, 0xe5, 0x6d, 0x84, 0xe0, 0x06, 0xbc,
+ 0x8a, 0x7a, 0xcc, 0x73, 0x1e, 0x7c, 0x1f, 0x6b,
+ 0xec, 0xb5, 0x71, 0x9f, 0x70, 0x77, 0xf0, 0xd4,
+ 0xf4, 0xc6, 0x1a, 0xb1, 0x1e, 0xba, 0xc1, 0x00,
+ 0x18, 0x01, 0xce, 0x33, 0xc4, 0xe4, 0xa7, 0x7d,
+ 0x83, 0x1d, 0x3c, 0xe3, 0x4e, 0x84, 0x10, 0xe1
+};
+static const u8 enc_output080[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x19, 0x46, 0xd6, 0x53, 0x96, 0x0f, 0x94, 0x7a,
+ 0x74, 0xd3, 0xe8, 0x09, 0x3c, 0xf4, 0x85, 0x02
+};
+static const u8 enc_assoc080[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce080[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x93, 0x2f, 0x40
+};
+static const u8 enc_key080[] __initconst = {
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30
+};
+
+/* wycheproof - checking for int overflows */
+static const u8 enc_input081[] __initconst = {
+ 0xeb, 0xb2, 0x16, 0xdd, 0xd7, 0xca, 0x70, 0x92,
+ 0x15, 0xf5, 0x03, 0xdf, 0x9c, 0xe6, 0x3c, 0x5c,
+ 0xd2, 0x19, 0x4e, 0x7d, 0x90, 0x99, 0xe8, 0xa9,
+ 0x0b, 0x2a, 0xfa, 0xad, 0x5e, 0xba, 0x35, 0x06,
+ 0x99, 0x25, 0xa6, 0x03, 0xfd, 0xbc, 0x34, 0x1a,
+ 0xae, 0xd4, 0x15, 0x05, 0xb1, 0x09, 0x41, 0xfa,
+ 0x38, 0x56, 0xa7, 0xe2, 0x47, 0xb1, 0x04, 0x07,
+ 0x09, 0x74, 0x6c, 0xfc, 0x20, 0x96, 0xca, 0xa6,
+ 0x31, 0xb2, 0xff, 0xf4, 0x1c, 0x25, 0x05, 0x06,
+ 0xd8, 0x89, 0xc1, 0xc9, 0x06, 0x71, 0xad, 0xe8,
+ 0x53, 0xee, 0x63, 0x94, 0xc1, 0x91, 0x92, 0xa5,
+ 0xcf, 0x37, 0x10, 0xd1, 0x07, 0x30, 0x99, 0xe5,
+ 0xbc, 0x94, 0x65, 0x82, 0xfc, 0x0f, 0xab, 0x9f,
+ 0x54, 0x3c, 0x71, 0x6a, 0xe2, 0x48, 0x6a, 0x86,
+ 0x83, 0xfd, 0xca, 0x39, 0xd2, 0xe1, 0x4f, 0x23,
+ 0xd0, 0x0a, 0x58, 0x26, 0x64, 0xf4, 0xec, 0xb1
+};
+static const u8 enc_output081[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x36, 0xc3, 0x00, 0x29, 0x85, 0xdd, 0x21, 0xba,
+ 0xf8, 0x95, 0xd6, 0x33, 0x57, 0x3f, 0x12, 0xc0
+};
+static const u8 enc_assoc081[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce081[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0xe2, 0x93, 0x35
+};
+static const u8 enc_key081[] __initconst = {
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30
+};
+
+/* wycheproof - checking for int overflows */
+static const u8 enc_input082[] __initconst = {
+ 0x40, 0x8a, 0xe6, 0xef, 0x1c, 0x7e, 0xf0, 0xfb,
+ 0x2c, 0x2d, 0x61, 0x08, 0x16, 0xfc, 0x78, 0x49,
+ 0xef, 0xa5, 0x8f, 0x78, 0x27, 0x3f, 0x5f, 0x16,
+ 0x6e, 0xa6, 0x5f, 0x81, 0xb5, 0x75, 0x74, 0x7d,
+ 0x03, 0x5b, 0x30, 0x40, 0xfe, 0xde, 0x1e, 0xb9,
+ 0x45, 0x97, 0x88, 0x66, 0x97, 0x88, 0x40, 0x8e,
+ 0x00, 0x41, 0x3b, 0x3e, 0x37, 0x6d, 0x15, 0x2d,
+ 0x20, 0x4a, 0xa2, 0xb7, 0xa8, 0x35, 0x58, 0xfc,
+ 0xd4, 0x8a, 0x0e, 0xf7, 0xa2, 0x6b, 0x1c, 0xd6,
+ 0xd3, 0x5d, 0x23, 0xb3, 0xf5, 0xdf, 0xe0, 0xca,
+ 0x77, 0xa4, 0xce, 0x32, 0xb9, 0x4a, 0xbf, 0x83,
+ 0xda, 0x2a, 0xef, 0xca, 0xf0, 0x68, 0x38, 0x08,
+ 0x79, 0xe8, 0x9f, 0xb0, 0xa3, 0x82, 0x95, 0x95,
+ 0xcf, 0x44, 0xc3, 0x85, 0x2a, 0xe2, 0xcc, 0x66,
+ 0x2b, 0x68, 0x9f, 0x93, 0x55, 0xd9, 0xc1, 0x83,
+ 0x80, 0x1f, 0x6a, 0xcc, 0x31, 0x3f, 0x89, 0x07
+};
+static const u8 enc_output082[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x65, 0x14, 0x51, 0x8e, 0x0a, 0x26, 0x41, 0x42,
+ 0xe0, 0xb7, 0x35, 0x1f, 0x96, 0x7f, 0xc2, 0xae
+};
+static const u8 enc_assoc082[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce082[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x0e, 0xf7, 0xd5
+};
+static const u8 enc_key082[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - checking for int overflows */
+static const u8 enc_input083[] __initconst = {
+ 0x0a, 0x0a, 0x24, 0x49, 0x9b, 0xca, 0xde, 0x58,
+ 0xcf, 0x15, 0x76, 0xc3, 0x12, 0xac, 0xa9, 0x84,
+ 0x71, 0x8c, 0xb4, 0xcc, 0x7e, 0x01, 0x53, 0xf5,
+ 0xa9, 0x01, 0x58, 0x10, 0x85, 0x96, 0x44, 0xdf,
+ 0xc0, 0x21, 0x17, 0x4e, 0x0b, 0x06, 0x0a, 0x39,
+ 0x74, 0x48, 0xde, 0x8b, 0x48, 0x4a, 0x86, 0x03,
+ 0xbe, 0x68, 0x0a, 0x69, 0x34, 0xc0, 0x90, 0x6f,
+ 0x30, 0xdd, 0x17, 0xea, 0xe2, 0xd4, 0xc5, 0xfa,
+ 0xa7, 0x77, 0xf8, 0xca, 0x53, 0x37, 0x0e, 0x08,
+ 0x33, 0x1b, 0x88, 0xc3, 0x42, 0xba, 0xc9, 0x59,
+ 0x78, 0x7b, 0xbb, 0x33, 0x93, 0x0e, 0x3b, 0x56,
+ 0xbe, 0x86, 0xda, 0x7f, 0x2a, 0x6e, 0xb1, 0xf9,
+ 0x40, 0x89, 0xd1, 0xd1, 0x81, 0x07, 0x4d, 0x43,
+ 0x02, 0xf8, 0xe0, 0x55, 0x2d, 0x0d, 0xe1, 0xfa,
+ 0xb3, 0x06, 0xa2, 0x1b, 0x42, 0xd4, 0xc3, 0xba,
+ 0x6e, 0x6f, 0x0c, 0xbc, 0xc8, 0x1e, 0x87, 0x7a
+};
+static const u8 enc_output083[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x4c, 0x19, 0x4d, 0xa6, 0xa9, 0x9f, 0xd6, 0x5b,
+ 0x40, 0xe9, 0xca, 0xd7, 0x98, 0xf4, 0x4b, 0x19
+};
+static const u8 enc_assoc083[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce083[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x3d, 0xfc, 0xe4
+};
+static const u8 enc_key083[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - checking for int overflows */
+static const u8 enc_input084[] __initconst = {
+ 0x4a, 0x0a, 0xaf, 0xf8, 0x49, 0x47, 0x29, 0x18,
+ 0x86, 0x91, 0x70, 0x13, 0x40, 0xf3, 0xce, 0x2b,
+ 0x8a, 0x78, 0xee, 0xd3, 0xa0, 0xf0, 0x65, 0x99,
+ 0x4b, 0x72, 0x48, 0x4e, 0x79, 0x91, 0xd2, 0x5c,
+ 0x29, 0xaa, 0x07, 0x5e, 0xb1, 0xfc, 0x16, 0xde,
+ 0x93, 0xfe, 0x06, 0x90, 0x58, 0x11, 0x2a, 0xb2,
+ 0x84, 0xa3, 0xed, 0x18, 0x78, 0x03, 0x26, 0xd1,
+ 0x25, 0x8a, 0x47, 0x22, 0x2f, 0xa6, 0x33, 0xd8,
+ 0xb2, 0x9f, 0x3b, 0xd9, 0x15, 0x0b, 0x23, 0x9b,
+ 0x15, 0x46, 0xc2, 0xbb, 0x9b, 0x9f, 0x41, 0x0f,
+ 0xeb, 0xea, 0xd3, 0x96, 0x00, 0x0e, 0xe4, 0x77,
+ 0x70, 0x15, 0x32, 0xc3, 0xd0, 0xf5, 0xfb, 0xf8,
+ 0x95, 0xd2, 0x80, 0x19, 0x6d, 0x2f, 0x73, 0x7c,
+ 0x5e, 0x9f, 0xec, 0x50, 0xd9, 0x2b, 0xb0, 0xdf,
+ 0x5d, 0x7e, 0x51, 0x3b, 0xe5, 0xb8, 0xea, 0x97,
+ 0x13, 0x10, 0xd5, 0xbf, 0x16, 0xba, 0x7a, 0xee
+};
+static const u8 enc_output084[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xc8, 0xae, 0x77, 0x88, 0xcd, 0x28, 0x74, 0xab,
+ 0xc1, 0x38, 0x54, 0x1e, 0x11, 0xfd, 0x05, 0x87
+};
+static const u8 enc_assoc084[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce084[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x01, 0x84, 0x86, 0xa8
+};
+static const u8 enc_key084[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - checking for int overflows */
+static const u8 enc_input085[] __initconst = {
+ 0xff, 0x94, 0x28, 0xd0, 0x79, 0x35, 0x1f, 0x66,
+ 0x5c, 0xd0, 0x01, 0x35, 0x43, 0x19, 0x87, 0x5c,
+ 0x78, 0x3d, 0x35, 0xf6, 0x13, 0xe6, 0xd9, 0x09,
+ 0x3d, 0x38, 0xe9, 0x75, 0xc3, 0x8f, 0xe3, 0xb8,
+ 0x9f, 0x7a, 0xed, 0x35, 0xcb, 0x5a, 0x2f, 0xca,
+ 0xa0, 0x34, 0x6e, 0xfb, 0x93, 0x65, 0x54, 0x64,
+ 0x9c, 0xf6, 0x37, 0x81, 0x71, 0xea, 0xe4, 0x39,
+ 0x6e, 0xa1, 0x5d, 0xc2, 0x40, 0xd1, 0xab, 0xf4,
+ 0x47, 0x2d, 0x90, 0x96, 0x52, 0x4f, 0xa1, 0xb2,
+ 0xb0, 0x23, 0xb8, 0xb2, 0x88, 0x22, 0x27, 0x73,
+ 0xd4, 0xd2, 0x06, 0x61, 0x6f, 0x92, 0x93, 0xf6,
+ 0x5b, 0x45, 0xdb, 0xbc, 0x74, 0xe7, 0xc2, 0xed,
+ 0xfb, 0xcb, 0xbf, 0x1c, 0xfb, 0x67, 0x9b, 0xb7,
+ 0x39, 0xa5, 0x86, 0x2d, 0xe2, 0xbc, 0xb9, 0x37,
+ 0xf7, 0x4d, 0x5b, 0xf8, 0x67, 0x1c, 0x5a, 0x8a,
+ 0x50, 0x92, 0xf6, 0x1d, 0x54, 0xc9, 0xaa, 0x5b
+};
+static const u8 enc_output085[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x93, 0x3a, 0x51, 0x63, 0xc7, 0xf6, 0x23, 0x68,
+ 0x32, 0x7b, 0x3f, 0xbc, 0x10, 0x36, 0xc9, 0x43
+};
+static const u8 enc_assoc085[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce085[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x06, 0x4c, 0x2d, 0x52
+};
+static const u8 enc_key085[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - special case tag */
+static const u8 enc_input086[] __initconst = {
+ 0x9a, 0x49, 0xc4, 0x0f, 0x8b, 0x48, 0xd7, 0xc6,
+ 0x6d, 0x1d, 0xb4, 0xe5, 0x3f, 0x20, 0xf2, 0xdd,
+ 0x4a, 0xaa, 0x24, 0x1d, 0xda, 0xb2, 0x6b, 0x5b,
+ 0xc0, 0xe2, 0x18, 0xb7, 0x2c, 0x33, 0x90, 0xf2,
+ 0xdf, 0x3e, 0xbd, 0x01, 0x76, 0x70, 0x44, 0x19,
+ 0x97, 0x2b, 0xcd, 0xbc, 0x6b, 0xbc, 0xb3, 0xe4,
+ 0xe7, 0x4a, 0x71, 0x52, 0x8e, 0xf5, 0x12, 0x63,
+ 0xce, 0x24, 0xe0, 0xd5, 0x75, 0xe0, 0xe4, 0x4d
+};
+static const u8 enc_output086[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f
+};
+static const u8 enc_assoc086[] __initconst = {
+ 0x85, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xa6, 0x90, 0x2f, 0xcb, 0xc8, 0x83, 0xbb, 0xc1,
+ 0x80, 0xb2, 0x56, 0xae, 0x34, 0xad, 0x7f, 0x00
+};
+static const u8 enc_nonce086[] __initconst = {
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ 0x08, 0x09, 0x0a, 0x0b
+};
+static const u8 enc_key086[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - special case tag */
+static const u8 enc_input087[] __initconst = {
+ 0x9a, 0x49, 0xc4, 0x0f, 0x8b, 0x48, 0xd7, 0xc6,
+ 0x6d, 0x1d, 0xb4, 0xe5, 0x3f, 0x20, 0xf2, 0xdd,
+ 0x4a, 0xaa, 0x24, 0x1d, 0xda, 0xb2, 0x6b, 0x5b,
+ 0xc0, 0xe2, 0x18, 0xb7, 0x2c, 0x33, 0x90, 0xf2,
+ 0xdf, 0x3e, 0xbd, 0x01, 0x76, 0x70, 0x44, 0x19,
+ 0x97, 0x2b, 0xcd, 0xbc, 0x6b, 0xbc, 0xb3, 0xe4,
+ 0xe7, 0x4a, 0x71, 0x52, 0x8e, 0xf5, 0x12, 0x63,
+ 0xce, 0x24, 0xe0, 0xd5, 0x75, 0xe0, 0xe4, 0x4d
+};
+static const u8 enc_output087[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+static const u8 enc_assoc087[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x24, 0x7e, 0x50, 0x64, 0x2a, 0x1c, 0x0a, 0x2f,
+ 0x8f, 0x77, 0x21, 0x96, 0x09, 0xdb, 0xa9, 0x58
+};
+static const u8 enc_nonce087[] __initconst = {
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ 0x08, 0x09, 0x0a, 0x0b
+};
+static const u8 enc_key087[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - special case tag */
+static const u8 enc_input088[] __initconst = {
+ 0x9a, 0x49, 0xc4, 0x0f, 0x8b, 0x48, 0xd7, 0xc6,
+ 0x6d, 0x1d, 0xb4, 0xe5, 0x3f, 0x20, 0xf2, 0xdd,
+ 0x4a, 0xaa, 0x24, 0x1d, 0xda, 0xb2, 0x6b, 0x5b,
+ 0xc0, 0xe2, 0x18, 0xb7, 0x2c, 0x33, 0x90, 0xf2,
+ 0xdf, 0x3e, 0xbd, 0x01, 0x76, 0x70, 0x44, 0x19,
+ 0x97, 0x2b, 0xcd, 0xbc, 0x6b, 0xbc, 0xb3, 0xe4,
+ 0xe7, 0x4a, 0x71, 0x52, 0x8e, 0xf5, 0x12, 0x63,
+ 0xce, 0x24, 0xe0, 0xd5, 0x75, 0xe0, 0xe4, 0x4d
+};
+static const u8 enc_output088[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_assoc088[] __initconst = {
+ 0x7c, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xd9, 0xe7, 0x2c, 0x06, 0x4a, 0xc8, 0x96, 0x1f,
+ 0x3f, 0xa5, 0x85, 0xe0, 0xe2, 0xab, 0xd6, 0x00
+};
+static const u8 enc_nonce088[] __initconst = {
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ 0x08, 0x09, 0x0a, 0x0b
+};
+static const u8 enc_key088[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - special case tag */
+static const u8 enc_input089[] __initconst = {
+ 0x9a, 0x49, 0xc4, 0x0f, 0x8b, 0x48, 0xd7, 0xc6,
+ 0x6d, 0x1d, 0xb4, 0xe5, 0x3f, 0x20, 0xf2, 0xdd,
+ 0x4a, 0xaa, 0x24, 0x1d, 0xda, 0xb2, 0x6b, 0x5b,
+ 0xc0, 0xe2, 0x18, 0xb7, 0x2c, 0x33, 0x90, 0xf2,
+ 0xdf, 0x3e, 0xbd, 0x01, 0x76, 0x70, 0x44, 0x19,
+ 0x97, 0x2b, 0xcd, 0xbc, 0x6b, 0xbc, 0xb3, 0xe4,
+ 0xe7, 0x4a, 0x71, 0x52, 0x8e, 0xf5, 0x12, 0x63,
+ 0xce, 0x24, 0xe0, 0xd5, 0x75, 0xe0, 0xe4, 0x4d
+};
+static const u8 enc_output089[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80
+};
+static const u8 enc_assoc089[] __initconst = {
+ 0x65, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x95, 0xaf, 0x0f, 0x4d, 0x0b, 0x68, 0x6e, 0xae,
+ 0xcc, 0xca, 0x43, 0x07, 0xd5, 0x96, 0xf5, 0x02
+};
+static const u8 enc_nonce089[] __initconst = {
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ 0x08, 0x09, 0x0a, 0x0b
+};
+static const u8 enc_key089[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - special case tag */
+static const u8 enc_input090[] __initconst = {
+ 0x9a, 0x49, 0xc4, 0x0f, 0x8b, 0x48, 0xd7, 0xc6,
+ 0x6d, 0x1d, 0xb4, 0xe5, 0x3f, 0x20, 0xf2, 0xdd,
+ 0x4a, 0xaa, 0x24, 0x1d, 0xda, 0xb2, 0x6b, 0x5b,
+ 0xc0, 0xe2, 0x18, 0xb7, 0x2c, 0x33, 0x90, 0xf2,
+ 0xdf, 0x3e, 0xbd, 0x01, 0x76, 0x70, 0x44, 0x19,
+ 0x97, 0x2b, 0xcd, 0xbc, 0x6b, 0xbc, 0xb3, 0xe4,
+ 0xe7, 0x4a, 0x71, 0x52, 0x8e, 0xf5, 0x12, 0x63,
+ 0xce, 0x24, 0xe0, 0xd5, 0x75, 0xe0, 0xe4, 0x4d
+};
+static const u8 enc_output090[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f
+};
+static const u8 enc_assoc090[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x85, 0x40, 0xb4, 0x64, 0x35, 0x77, 0x07, 0xbe,
+ 0x3a, 0x39, 0xd5, 0x5c, 0x34, 0xf8, 0xbc, 0xb3
+};
+static const u8 enc_nonce090[] __initconst = {
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ 0x08, 0x09, 0x0a, 0x0b
+};
+static const u8 enc_key090[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - special case tag */
+static const u8 enc_input091[] __initconst = {
+ 0x9a, 0x49, 0xc4, 0x0f, 0x8b, 0x48, 0xd7, 0xc6,
+ 0x6d, 0x1d, 0xb4, 0xe5, 0x3f, 0x20, 0xf2, 0xdd,
+ 0x4a, 0xaa, 0x24, 0x1d, 0xda, 0xb2, 0x6b, 0x5b,
+ 0xc0, 0xe2, 0x18, 0xb7, 0x2c, 0x33, 0x90, 0xf2,
+ 0xdf, 0x3e, 0xbd, 0x01, 0x76, 0x70, 0x44, 0x19,
+ 0x97, 0x2b, 0xcd, 0xbc, 0x6b, 0xbc, 0xb3, 0xe4,
+ 0xe7, 0x4a, 0x71, 0x52, 0x8e, 0xf5, 0x12, 0x63,
+ 0xce, 0x24, 0xe0, 0xd5, 0x75, 0xe0, 0xe4, 0x4d
+};
+static const u8 enc_output091[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
+ 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00
+};
+static const u8 enc_assoc091[] __initconst = {
+ 0x4f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x66, 0x23, 0xd9, 0x90, 0xb8, 0x98, 0xd8, 0x30,
+ 0xd2, 0x12, 0xaf, 0x23, 0x83, 0x33, 0x07, 0x01
+};
+static const u8 enc_nonce091[] __initconst = {
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ 0x08, 0x09, 0x0a, 0x0b
+};
+static const u8 enc_key091[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - special case tag */
+static const u8 enc_input092[] __initconst = {
+ 0x9a, 0x49, 0xc4, 0x0f, 0x8b, 0x48, 0xd7, 0xc6,
+ 0x6d, 0x1d, 0xb4, 0xe5, 0x3f, 0x20, 0xf2, 0xdd,
+ 0x4a, 0xaa, 0x24, 0x1d, 0xda, 0xb2, 0x6b, 0x5b,
+ 0xc0, 0xe2, 0x18, 0xb7, 0x2c, 0x33, 0x90, 0xf2,
+ 0xdf, 0x3e, 0xbd, 0x01, 0x76, 0x70, 0x44, 0x19,
+ 0x97, 0x2b, 0xcd, 0xbc, 0x6b, 0xbc, 0xb3, 0xe4,
+ 0xe7, 0x4a, 0x71, 0x52, 0x8e, 0xf5, 0x12, 0x63,
+ 0xce, 0x24, 0xe0, 0xd5, 0x75, 0xe0, 0xe4, 0x4d
+};
+static const u8 enc_output092[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+static const u8 enc_assoc092[] __initconst = {
+ 0x83, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x5f, 0x16, 0xd0, 0x9f, 0x17, 0x78, 0x72, 0x11,
+ 0xb7, 0xd4, 0x84, 0xe0, 0x24, 0xf8, 0x97, 0x01
+};
+static const u8 enc_nonce092[] __initconst = {
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ 0x08, 0x09, 0x0a, 0x0b
+};
+static const u8 enc_key092[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - edge case intermediate sums in poly1305 */
+static const u8 enc_input093[] __initconst = {
+ 0x00, 0x52, 0x35, 0xd2, 0xa9, 0x19, 0xf2, 0x8d,
+ 0x3d, 0xb7, 0x66, 0x4a, 0x34, 0xae, 0x6b, 0x44,
+ 0x4d, 0x3d, 0x35, 0xf6, 0x13, 0xe6, 0xd9, 0x09,
+ 0x3d, 0x38, 0xe9, 0x75, 0xc3, 0x8f, 0xe3, 0xb8,
+ 0x5b, 0x8b, 0x94, 0x50, 0x9e, 0x2b, 0x74, 0xa3,
+ 0x6d, 0x34, 0x6e, 0x33, 0xd5, 0x72, 0x65, 0x9b,
+ 0xa9, 0xf6, 0x37, 0x81, 0x71, 0xea, 0xe4, 0x39,
+ 0x6e, 0xa1, 0x5d, 0xc2, 0x40, 0xd1, 0xab, 0xf4,
+ 0x83, 0xdc, 0xe9, 0xf3, 0x07, 0x3e, 0xfa, 0xdb,
+ 0x7d, 0x23, 0xb8, 0x7a, 0xce, 0x35, 0x16, 0x8c
+};
+static const u8 enc_output093[] __initconst = {
+ 0x00, 0x39, 0xe2, 0xfd, 0x2f, 0xd3, 0x12, 0x14,
+ 0x9e, 0x98, 0x98, 0x80, 0x88, 0x48, 0x13, 0xe7,
+ 0xca, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x3b, 0x0e, 0x86, 0x9a, 0xaa, 0x8e, 0xa4, 0x96,
+ 0x32, 0xff, 0xff, 0x37, 0xb9, 0xe8, 0xce, 0x00,
+ 0xca, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x3b, 0x0e, 0x86, 0x9a, 0xaa, 0x8e, 0xa4, 0x96,
+ 0x32, 0xff, 0xff, 0x37, 0xb9, 0xe8, 0xce, 0x00,
+ 0xa5, 0x19, 0xac, 0x1a, 0x35, 0xb4, 0xa5, 0x77,
+ 0x87, 0x51, 0x0a, 0xf7, 0x8d, 0x8d, 0x20, 0x0a
+};
+static const u8 enc_assoc093[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce093[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x06, 0x4c, 0x2d, 0x52
+};
+static const u8 enc_key093[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - edge case intermediate sums in poly1305 */
+static const u8 enc_input094[] __initconst = {
+ 0xd3, 0x94, 0x28, 0xd0, 0x79, 0x35, 0x1f, 0x66,
+ 0x5c, 0xd0, 0x01, 0x35, 0x43, 0x19, 0x87, 0x5c,
+ 0xe5, 0xda, 0x78, 0x76, 0x6f, 0xa1, 0x92, 0x90,
+ 0xc0, 0x31, 0xf7, 0x52, 0x08, 0x50, 0x67, 0x45,
+ 0xae, 0x7a, 0xed, 0x35, 0xcb, 0x5a, 0x2f, 0xca,
+ 0xa0, 0x34, 0x6e, 0xfb, 0x93, 0x65, 0x54, 0x64,
+ 0x49, 0x6d, 0xde, 0xb0, 0x55, 0x09, 0xc6, 0xef,
+ 0xff, 0xab, 0x75, 0xeb, 0x2d, 0xf4, 0xab, 0x09,
+ 0x76, 0x2d, 0x90, 0x96, 0x52, 0x4f, 0xa1, 0xb2,
+ 0xb0, 0x23, 0xb8, 0xb2, 0x88, 0x22, 0x27, 0x73,
+ 0x01, 0x49, 0xef, 0x50, 0x4b, 0x71, 0xb1, 0x20,
+ 0xca, 0x4f, 0xf3, 0x95, 0x19, 0xc2, 0xc2, 0x10
+};
+static const u8 enc_output094[] __initconst = {
+ 0xd3, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x62, 0x18, 0xb2, 0x7f, 0x83, 0xb8, 0xb4, 0x66,
+ 0x02, 0xf6, 0xe1, 0xd8, 0x34, 0x20, 0x7b, 0x02,
+ 0xce, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x2a, 0x64, 0x16, 0xce, 0xdb, 0x1c, 0xdd, 0x29,
+ 0x6e, 0xf5, 0xd7, 0xd6, 0x92, 0xda, 0xff, 0x02,
+ 0xce, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x2a, 0x64, 0x16, 0xce, 0xdb, 0x1c, 0xdd, 0x29,
+ 0x6e, 0xf5, 0xd7, 0xd6, 0x92, 0xda, 0xff, 0x02,
+ 0x30, 0x2f, 0xe8, 0x2a, 0xb0, 0xa0, 0x9a, 0xf6,
+ 0x44, 0x00, 0xd0, 0x15, 0xae, 0x83, 0xd9, 0xcc
+};
+static const u8 enc_assoc094[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce094[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x06, 0x4c, 0x2d, 0x52
+};
+static const u8 enc_key094[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - edge case intermediate sums in poly1305 */
+static const u8 enc_input095[] __initconst = {
+ 0xe9, 0x94, 0x28, 0xd0, 0x79, 0x35, 0x1f, 0x66,
+ 0x5c, 0xd0, 0x01, 0x35, 0x43, 0x19, 0x87, 0x5c,
+ 0x6d, 0xf1, 0x39, 0x4e, 0xdc, 0x53, 0x9b, 0x5b,
+ 0x3a, 0x09, 0x57, 0xbe, 0x0f, 0xb8, 0x59, 0x46,
+ 0x80, 0x7a, 0xed, 0x35, 0xcb, 0x5a, 0x2f, 0xca,
+ 0xa0, 0x34, 0x6e, 0xfb, 0x93, 0x65, 0x54, 0x64,
+ 0xd1, 0x76, 0x9f, 0xe8, 0x06, 0xbb, 0xfe, 0xb6,
+ 0xf5, 0x90, 0x95, 0x0f, 0x2e, 0xac, 0x9e, 0x0a,
+ 0x58, 0x2d, 0x90, 0x96, 0x52, 0x4f, 0xa1, 0xb2,
+ 0xb0, 0x23, 0xb8, 0xb2, 0x88, 0x22, 0x27, 0x73,
+ 0x99, 0x52, 0xae, 0x08, 0x18, 0xc3, 0x89, 0x79,
+ 0xc0, 0x74, 0x13, 0x71, 0x1a, 0x9a, 0xf7, 0x13
+};
+static const u8 enc_output095[] __initconst = {
+ 0xe9, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xea, 0x33, 0xf3, 0x47, 0x30, 0x4a, 0xbd, 0xad,
+ 0xf8, 0xce, 0x41, 0x34, 0x33, 0xc8, 0x45, 0x01,
+ 0xe0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xb2, 0x7f, 0x57, 0x96, 0x88, 0xae, 0xe5, 0x70,
+ 0x64, 0xce, 0x37, 0x32, 0x91, 0x82, 0xca, 0x01,
+ 0xe0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xb2, 0x7f, 0x57, 0x96, 0x88, 0xae, 0xe5, 0x70,
+ 0x64, 0xce, 0x37, 0x32, 0x91, 0x82, 0xca, 0x01,
+ 0x98, 0xa7, 0xe8, 0x36, 0xe0, 0xee, 0x4d, 0x02,
+ 0x35, 0x00, 0xd0, 0x55, 0x7e, 0xc2, 0xcb, 0xe0
+};
+static const u8 enc_assoc095[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce095[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x06, 0x4c, 0x2d, 0x52
+};
+static const u8 enc_key095[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - edge case intermediate sums in poly1305 */
+static const u8 enc_input096[] __initconst = {
+ 0xff, 0x94, 0x28, 0xd0, 0x79, 0x35, 0x1f, 0x66,
+ 0x5c, 0xd0, 0x01, 0x35, 0x43, 0x19, 0x87, 0x5c,
+ 0x64, 0xf9, 0x0f, 0x5b, 0x26, 0x92, 0xb8, 0x60,
+ 0xd4, 0x59, 0x6f, 0xf4, 0xb3, 0x40, 0x2c, 0x5c,
+ 0x00, 0xb9, 0xbb, 0x53, 0x70, 0x7a, 0xa6, 0x67,
+ 0xd3, 0x56, 0xfe, 0x50, 0xc7, 0x19, 0x96, 0x94,
+ 0x03, 0x35, 0x61, 0xe7, 0xca, 0xca, 0x6d, 0x94,
+ 0x1d, 0xc3, 0xcd, 0x69, 0x14, 0xad, 0x69, 0x04
+};
+static const u8 enc_output096[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xe3, 0x3b, 0xc5, 0x52, 0xca, 0x8b, 0x9e, 0x96,
+ 0x16, 0x9e, 0x79, 0x7e, 0x8f, 0x30, 0x30, 0x1b,
+ 0x60, 0x3c, 0xa9, 0x99, 0x44, 0xdf, 0x76, 0x52,
+ 0x8c, 0x9d, 0x6f, 0x54, 0xab, 0x83, 0x3d, 0x0f,
+ 0x60, 0x3c, 0xa9, 0x99, 0x44, 0xdf, 0x76, 0x52,
+ 0x8c, 0x9d, 0x6f, 0x54, 0xab, 0x83, 0x3d, 0x0f,
+ 0x6a, 0xb8, 0xdc, 0xe2, 0xc5, 0x9d, 0xa4, 0x73,
+ 0x71, 0x30, 0xb0, 0x25, 0x2f, 0x68, 0xa8, 0xd8
+};
+static const u8 enc_assoc096[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce096[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x06, 0x4c, 0x2d, 0x52
+};
+static const u8 enc_key096[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - edge case intermediate sums in poly1305 */
+static const u8 enc_input097[] __initconst = {
+ 0x68, 0x94, 0x28, 0xd0, 0x79, 0x35, 0x1f, 0x66,
+ 0x5c, 0xd0, 0x01, 0x35, 0x43, 0x19, 0x87, 0x5c,
+ 0xb0, 0x8f, 0x25, 0x67, 0x5b, 0x9b, 0xcb, 0xf6,
+ 0xe3, 0x84, 0x07, 0xde, 0x2e, 0xc7, 0x5a, 0x47,
+ 0x9f, 0x7a, 0xed, 0x35, 0xcb, 0x5a, 0x2f, 0xca,
+ 0xa0, 0x34, 0x6e, 0xfb, 0x93, 0x65, 0x54, 0x64,
+ 0x2d, 0x2a, 0xf7, 0xcd, 0x6b, 0x08, 0x05, 0x01,
+ 0xd3, 0x1b, 0xa5, 0x4f, 0xb2, 0xeb, 0x75, 0x96,
+ 0x47, 0x2d, 0x90, 0x96, 0x52, 0x4f, 0xa1, 0xb2,
+ 0xb0, 0x23, 0xb8, 0xb2, 0x88, 0x22, 0x27, 0x73,
+ 0x65, 0x0e, 0xc6, 0x2d, 0x75, 0x70, 0x72, 0xce,
+ 0xe6, 0xff, 0x23, 0x31, 0x86, 0xdd, 0x1c, 0x8f
+};
+static const u8 enc_output097[] __initconst = {
+ 0x68, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x37, 0x4d, 0xef, 0x6e, 0xb7, 0x82, 0xed, 0x00,
+ 0x21, 0x43, 0x11, 0x54, 0x12, 0xb7, 0x46, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x4e, 0x23, 0x3f, 0xb3, 0xe5, 0x1d, 0x1e, 0xc7,
+ 0x42, 0x45, 0x07, 0x72, 0x0d, 0xc5, 0x21, 0x9d,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x4e, 0x23, 0x3f, 0xb3, 0xe5, 0x1d, 0x1e, 0xc7,
+ 0x42, 0x45, 0x07, 0x72, 0x0d, 0xc5, 0x21, 0x9d,
+ 0x04, 0x4d, 0xea, 0x60, 0x88, 0x80, 0x41, 0x2b,
+ 0xfd, 0xff, 0xcf, 0x35, 0x57, 0x9e, 0x9b, 0x26
+};
+static const u8 enc_assoc097[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce097[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x06, 0x4c, 0x2d, 0x52
+};
+static const u8 enc_key097[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - edge case intermediate sums in poly1305 */
+static const u8 enc_input098[] __initconst = {
+ 0x6d, 0x94, 0x28, 0xd0, 0x79, 0x35, 0x1f, 0x66,
+ 0x5c, 0xd0, 0x01, 0x35, 0x43, 0x19, 0x87, 0x5c,
+ 0xa1, 0x61, 0xb5, 0xab, 0x04, 0x09, 0x00, 0x62,
+ 0x9e, 0xfe, 0xff, 0x78, 0xd7, 0xd8, 0x6b, 0x45,
+ 0x9f, 0x7a, 0xed, 0x35, 0xcb, 0x5a, 0x2f, 0xca,
+ 0xa0, 0x34, 0x6e, 0xfb, 0x93, 0x65, 0x54, 0x64,
+ 0xc6, 0xf8, 0x07, 0x8c, 0xc8, 0xef, 0x12, 0xa0,
+ 0xff, 0x65, 0x7d, 0x6d, 0x08, 0xdb, 0x10, 0xb8,
+ 0x47, 0x2d, 0x90, 0x96, 0x52, 0x4f, 0xa1, 0xb2,
+ 0xb0, 0x23, 0xb8, 0xb2, 0x88, 0x22, 0x27, 0x73,
+ 0x8e, 0xdc, 0x36, 0x6c, 0xd6, 0x97, 0x65, 0x6f,
+ 0xca, 0x81, 0xfb, 0x13, 0x3c, 0xed, 0x79, 0xa1
+};
+static const u8 enc_output098[] __initconst = {
+ 0x6d, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x26, 0xa3, 0x7f, 0xa2, 0xe8, 0x10, 0x26, 0x94,
+ 0x5c, 0x39, 0xe9, 0xf2, 0xeb, 0xa8, 0x77, 0x02,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xa5, 0xf1, 0xcf, 0xf2, 0x46, 0xfa, 0x09, 0x66,
+ 0x6e, 0x3b, 0xdf, 0x50, 0xb7, 0xf5, 0x44, 0xb3,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xa5, 0xf1, 0xcf, 0xf2, 0x46, 0xfa, 0x09, 0x66,
+ 0x6e, 0x3b, 0xdf, 0x50, 0xb7, 0xf5, 0x44, 0xb3,
+ 0x1e, 0x6b, 0xea, 0x63, 0x14, 0x54, 0x2e, 0x2e,
+ 0xf9, 0xff, 0xcf, 0x45, 0x0b, 0x2e, 0x98, 0x2b
+};
+static const u8 enc_assoc098[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce098[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x06, 0x4c, 0x2d, 0x52
+};
+static const u8 enc_key098[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - edge case intermediate sums in poly1305 */
+static const u8 enc_input099[] __initconst = {
+ 0xff, 0x94, 0x28, 0xd0, 0x79, 0x35, 0x1f, 0x66,
+ 0x5c, 0xd0, 0x01, 0x35, 0x43, 0x19, 0x87, 0x5c,
+ 0xfc, 0x01, 0xb8, 0x91, 0xe5, 0xf0, 0xf9, 0x12,
+ 0x8d, 0x7d, 0x1c, 0x57, 0x91, 0x92, 0xb6, 0x98,
+ 0x63, 0x41, 0x44, 0x15, 0xb6, 0x99, 0x68, 0x95,
+ 0x9a, 0x72, 0x91, 0xb7, 0xa5, 0xaf, 0x13, 0x48,
+ 0x60, 0xcd, 0x9e, 0xa1, 0x0c, 0x29, 0xa3, 0x66,
+ 0x54, 0xe7, 0xa2, 0x8e, 0x76, 0x1b, 0xec, 0xd8
+};
+static const u8 enc_output099[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x7b, 0xc3, 0x72, 0x98, 0x09, 0xe9, 0xdf, 0xe4,
+ 0x4f, 0xba, 0x0a, 0xdd, 0xad, 0xe2, 0xaa, 0xdf,
+ 0x03, 0xc4, 0x56, 0xdf, 0x82, 0x3c, 0xb8, 0xa0,
+ 0xc5, 0xb9, 0x00, 0xb3, 0xc9, 0x35, 0xb8, 0xd3,
+ 0x03, 0xc4, 0x56, 0xdf, 0x82, 0x3c, 0xb8, 0xa0,
+ 0xc5, 0xb9, 0x00, 0xb3, 0xc9, 0x35, 0xb8, 0xd3,
+ 0xed, 0x20, 0x17, 0xc8, 0xdb, 0xa4, 0x77, 0x56,
+ 0x29, 0x04, 0x9d, 0x78, 0x6e, 0x3b, 0xce, 0xb1
+};
+static const u8 enc_assoc099[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce099[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x06, 0x4c, 0x2d, 0x52
+};
+static const u8 enc_key099[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - edge case intermediate sums in poly1305 */
+static const u8 enc_input100[] __initconst = {
+ 0xff, 0x94, 0x28, 0xd0, 0x79, 0x35, 0x1f, 0x66,
+ 0x5c, 0xd0, 0x01, 0x35, 0x43, 0x19, 0x87, 0x5c,
+ 0x6b, 0x6d, 0xc9, 0xd2, 0x1a, 0x81, 0x9e, 0x70,
+ 0xb5, 0x77, 0xf4, 0x41, 0x37, 0xd3, 0xd6, 0xbd,
+ 0x13, 0x35, 0xf5, 0xeb, 0x44, 0x49, 0x40, 0x77,
+ 0xb2, 0x64, 0x49, 0xa5, 0x4b, 0x6c, 0x7c, 0x75,
+ 0x10, 0xb9, 0x2f, 0x5f, 0xfe, 0xf9, 0x8b, 0x84,
+ 0x7c, 0xf1, 0x7a, 0x9c, 0x98, 0xd8, 0x83, 0xe5
+};
+static const u8 enc_output100[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xec, 0xaf, 0x03, 0xdb, 0xf6, 0x98, 0xb8, 0x86,
+ 0x77, 0xb0, 0xe2, 0xcb, 0x0b, 0xa3, 0xca, 0xfa,
+ 0x73, 0xb0, 0xe7, 0x21, 0x70, 0xec, 0x90, 0x42,
+ 0xed, 0xaf, 0xd8, 0xa1, 0x27, 0xf6, 0xd7, 0xee,
+ 0x73, 0xb0, 0xe7, 0x21, 0x70, 0xec, 0x90, 0x42,
+ 0xed, 0xaf, 0xd8, 0xa1, 0x27, 0xf6, 0xd7, 0xee,
+ 0x07, 0x3f, 0x17, 0xcb, 0x67, 0x78, 0x64, 0x59,
+ 0x25, 0x04, 0x9d, 0x88, 0x22, 0xcb, 0xca, 0xb6
+};
+static const u8 enc_assoc100[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce100[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x06, 0x4c, 0x2d, 0x52
+};
+static const u8 enc_key100[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - edge case intermediate sums in poly1305 */
+static const u8 enc_input101[] __initconst = {
+ 0xff, 0xcb, 0x2b, 0x11, 0x06, 0xf8, 0x23, 0x4c,
+ 0x5e, 0x99, 0xd4, 0xdb, 0x4c, 0x70, 0x48, 0xde,
+ 0x32, 0x3d, 0x35, 0xf6, 0x13, 0xe6, 0xd9, 0x09,
+ 0x3d, 0x38, 0xe9, 0x75, 0xc3, 0x8f, 0xe3, 0xb8,
+ 0x16, 0xe9, 0x88, 0x4a, 0x11, 0x4f, 0x0e, 0x92,
+ 0x66, 0xce, 0xa3, 0x88, 0x5f, 0xe3, 0x6b, 0x9f,
+ 0xd6, 0xf6, 0x37, 0x81, 0x71, 0xea, 0xe4, 0x39,
+ 0x6e, 0xa1, 0x5d, 0xc2, 0x40, 0xd1, 0xab, 0xf4,
+ 0xce, 0xbe, 0xf5, 0xe9, 0x88, 0x5a, 0x80, 0xea,
+ 0x76, 0xd9, 0x75, 0xc1, 0x44, 0xa4, 0x18, 0x88
+};
+static const u8 enc_output101[] __initconst = {
+ 0xff, 0xa0, 0xfc, 0x3e, 0x80, 0x32, 0xc3, 0xd5,
+ 0xfd, 0xb6, 0x2a, 0x11, 0xf0, 0x96, 0x30, 0x7d,
+ 0xb5, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x76, 0x6c, 0x9a, 0x80, 0x25, 0xea, 0xde, 0xa7,
+ 0x39, 0x05, 0x32, 0x8c, 0x33, 0x79, 0xc0, 0x04,
+ 0xb5, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x76, 0x6c, 0x9a, 0x80, 0x25, 0xea, 0xde, 0xa7,
+ 0x39, 0x05, 0x32, 0x8c, 0x33, 0x79, 0xc0, 0x04,
+ 0x8b, 0x9b, 0xb4, 0xb4, 0x86, 0x12, 0x89, 0x65,
+ 0x8c, 0x69, 0x6a, 0x83, 0x40, 0x15, 0x04, 0x05
+};
+static const u8 enc_assoc101[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce101[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x06, 0x4c, 0x2d, 0x52
+};
+static const u8 enc_key101[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - edge case intermediate sums in poly1305 */
+static const u8 enc_input102[] __initconst = {
+ 0x6f, 0x9e, 0x70, 0xed, 0x3b, 0x8b, 0xac, 0xa0,
+ 0x26, 0xe4, 0x6a, 0x5a, 0x09, 0x43, 0x15, 0x8d,
+ 0x21, 0x3d, 0x35, 0xf6, 0x13, 0xe6, 0xd9, 0x09,
+ 0x3d, 0x38, 0xe9, 0x75, 0xc3, 0x8f, 0xe3, 0xb8,
+ 0x0c, 0x61, 0x2c, 0x5e, 0x8d, 0x89, 0xa8, 0x73,
+ 0xdb, 0xca, 0xad, 0x5b, 0x73, 0x46, 0x42, 0x9b,
+ 0xc5, 0xf6, 0x37, 0x81, 0x71, 0xea, 0xe4, 0x39,
+ 0x6e, 0xa1, 0x5d, 0xc2, 0x40, 0xd1, 0xab, 0xf4,
+ 0xd4, 0x36, 0x51, 0xfd, 0x14, 0x9c, 0x26, 0x0b,
+ 0xcb, 0xdd, 0x7b, 0x12, 0x68, 0x01, 0x31, 0x8c
+};
+static const u8 enc_output102[] __initconst = {
+ 0x6f, 0xf5, 0xa7, 0xc2, 0xbd, 0x41, 0x4c, 0x39,
+ 0x85, 0xcb, 0x94, 0x90, 0xb5, 0xa5, 0x6d, 0x2e,
+ 0xa6, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x6c, 0xe4, 0x3e, 0x94, 0xb9, 0x2c, 0x78, 0x46,
+ 0x84, 0x01, 0x3c, 0x5f, 0x1f, 0xdc, 0xe9, 0x00,
+ 0xa6, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x6c, 0xe4, 0x3e, 0x94, 0xb9, 0x2c, 0x78, 0x46,
+ 0x84, 0x01, 0x3c, 0x5f, 0x1f, 0xdc, 0xe9, 0x00,
+ 0x8b, 0x3b, 0xbd, 0x51, 0x64, 0x44, 0x59, 0x56,
+ 0x8d, 0x81, 0xca, 0x1f, 0xa7, 0x2c, 0xe4, 0x04
+};
+static const u8 enc_assoc102[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce102[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x06, 0x4c, 0x2d, 0x52
+};
+static const u8 enc_key102[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - edge case intermediate sums in poly1305 */
+static const u8 enc_input103[] __initconst = {
+ 0x41, 0x2b, 0x08, 0x0a, 0x3e, 0x19, 0xc1, 0x0d,
+ 0x44, 0xa1, 0xaf, 0x1e, 0xab, 0xde, 0xb4, 0xce,
+ 0x35, 0x3d, 0x35, 0xf6, 0x13, 0xe6, 0xd9, 0x09,
+ 0x3d, 0x38, 0xe9, 0x75, 0xc3, 0x8f, 0xe3, 0xb8,
+ 0x6b, 0x83, 0x94, 0x33, 0x09, 0x21, 0x48, 0x6c,
+ 0xa1, 0x1d, 0x29, 0x1c, 0x3e, 0x97, 0xee, 0x9a,
+ 0xd1, 0xf6, 0x37, 0x81, 0x71, 0xea, 0xe4, 0x39,
+ 0x6e, 0xa1, 0x5d, 0xc2, 0x40, 0xd1, 0xab, 0xf4,
+ 0xb3, 0xd4, 0xe9, 0x90, 0x90, 0x34, 0xc6, 0x14,
+ 0xb1, 0x0a, 0xff, 0x55, 0x25, 0xd0, 0x9d, 0x8d
+};
+static const u8 enc_output103[] __initconst = {
+ 0x41, 0x40, 0xdf, 0x25, 0xb8, 0xd3, 0x21, 0x94,
+ 0xe7, 0x8e, 0x51, 0xd4, 0x17, 0x38, 0xcc, 0x6d,
+ 0xb2, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x0b, 0x06, 0x86, 0xf9, 0x3d, 0x84, 0x98, 0x59,
+ 0xfe, 0xd6, 0xb8, 0x18, 0x52, 0x0d, 0x45, 0x01,
+ 0xb2, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x0b, 0x06, 0x86, 0xf9, 0x3d, 0x84, 0x98, 0x59,
+ 0xfe, 0xd6, 0xb8, 0x18, 0x52, 0x0d, 0x45, 0x01,
+ 0x86, 0xfb, 0xab, 0x2b, 0x4a, 0x94, 0xf4, 0x7a,
+ 0xa5, 0x6f, 0x0a, 0xea, 0x65, 0xd1, 0x10, 0x08
+};
+static const u8 enc_assoc103[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce103[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x06, 0x4c, 0x2d, 0x52
+};
+static const u8 enc_key103[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - edge case intermediate sums in poly1305 */
+static const u8 enc_input104[] __initconst = {
+ 0xb2, 0x47, 0xa7, 0x47, 0x23, 0x49, 0x1a, 0xac,
+ 0xac, 0xaa, 0xd7, 0x09, 0xc9, 0x1e, 0x93, 0x2b,
+ 0x31, 0x3d, 0x35, 0xf6, 0x13, 0xe6, 0xd9, 0x09,
+ 0x3d, 0x38, 0xe9, 0x75, 0xc3, 0x8f, 0xe3, 0xb8,
+ 0x9a, 0xde, 0x04, 0xe7, 0x5b, 0xb7, 0x01, 0xd9,
+ 0x66, 0x06, 0x01, 0xb3, 0x47, 0x65, 0xde, 0x98,
+ 0xd5, 0xf6, 0x37, 0x81, 0x71, 0xea, 0xe4, 0x39,
+ 0x6e, 0xa1, 0x5d, 0xc2, 0x40, 0xd1, 0xab, 0xf4,
+ 0x42, 0x89, 0x79, 0x44, 0xc2, 0xa2, 0x8f, 0xa1,
+ 0x76, 0x11, 0xd7, 0xfa, 0x5c, 0x22, 0xad, 0x8f
+};
+static const u8 enc_output104[] __initconst = {
+ 0xb2, 0x2c, 0x70, 0x68, 0xa5, 0x83, 0xfa, 0x35,
+ 0x0f, 0x85, 0x29, 0xc3, 0x75, 0xf8, 0xeb, 0x88,
+ 0xb6, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xfa, 0x5b, 0x16, 0x2d, 0x6f, 0x12, 0xd1, 0xec,
+ 0x39, 0xcd, 0x90, 0xb7, 0x2b, 0xff, 0x75, 0x03,
+ 0xb6, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xfa, 0x5b, 0x16, 0x2d, 0x6f, 0x12, 0xd1, 0xec,
+ 0x39, 0xcd, 0x90, 0xb7, 0x2b, 0xff, 0x75, 0x03,
+ 0xa0, 0x19, 0xac, 0x2e, 0xd6, 0x67, 0xe1, 0x7d,
+ 0xa1, 0x6f, 0x0a, 0xfa, 0x19, 0x61, 0x0d, 0x0d
+};
+static const u8 enc_assoc104[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce104[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x06, 0x4c, 0x2d, 0x52
+};
+static const u8 enc_key104[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - edge case intermediate sums in poly1305 */
+static const u8 enc_input105[] __initconst = {
+ 0x74, 0x0f, 0x9e, 0x49, 0xf6, 0x10, 0xef, 0xa5,
+ 0x85, 0xb6, 0x59, 0xca, 0x6e, 0xd8, 0xb4, 0x99,
+ 0x2d, 0x3d, 0x35, 0xf6, 0x13, 0xe6, 0xd9, 0x09,
+ 0x3d, 0x38, 0xe9, 0x75, 0xc3, 0x8f, 0xe3, 0xb8,
+ 0x41, 0x2d, 0x96, 0xaf, 0xbe, 0x80, 0xec, 0x3e,
+ 0x79, 0xd4, 0x51, 0xb0, 0x0a, 0x2d, 0xb2, 0x9a,
+ 0xc9, 0xf6, 0x37, 0x81, 0x71, 0xea, 0xe4, 0x39,
+ 0x6e, 0xa1, 0x5d, 0xc2, 0x40, 0xd1, 0xab, 0xf4,
+ 0x99, 0x7a, 0xeb, 0x0c, 0x27, 0x95, 0x62, 0x46,
+ 0x69, 0xc3, 0x87, 0xf9, 0x11, 0x6a, 0xc1, 0x8d
+};
+static const u8 enc_output105[] __initconst = {
+ 0x74, 0x64, 0x49, 0x66, 0x70, 0xda, 0x0f, 0x3c,
+ 0x26, 0x99, 0xa7, 0x00, 0xd2, 0x3e, 0xcc, 0x3a,
+ 0xaa, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x21, 0xa8, 0x84, 0x65, 0x8a, 0x25, 0x3c, 0x0b,
+ 0x26, 0x1f, 0xc0, 0xb4, 0x66, 0xb7, 0x19, 0x01,
+ 0xaa, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x21, 0xa8, 0x84, 0x65, 0x8a, 0x25, 0x3c, 0x0b,
+ 0x26, 0x1f, 0xc0, 0xb4, 0x66, 0xb7, 0x19, 0x01,
+ 0x73, 0x6e, 0x18, 0x18, 0x16, 0x96, 0xa5, 0x88,
+ 0x9c, 0x31, 0x59, 0xfa, 0xab, 0xab, 0x20, 0xfd
+};
+static const u8 enc_assoc105[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce105[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x06, 0x4c, 0x2d, 0x52
+};
+static const u8 enc_key105[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - edge case intermediate sums in poly1305 */
+static const u8 enc_input106[] __initconst = {
+ 0xad, 0xba, 0x5d, 0x10, 0x5b, 0xc8, 0xaa, 0x06,
+ 0x2c, 0x23, 0x36, 0xcb, 0x88, 0x9d, 0xdb, 0xd5,
+ 0x37, 0x3d, 0x35, 0xf6, 0x13, 0xe6, 0xd9, 0x09,
+ 0x3d, 0x38, 0xe9, 0x75, 0xc3, 0x8f, 0xe3, 0xb8,
+ 0x17, 0x7c, 0x5f, 0xfe, 0x28, 0x75, 0xf4, 0x68,
+ 0xf6, 0xc2, 0x96, 0x57, 0x48, 0xf3, 0x59, 0x9a,
+ 0xd3, 0xf6, 0x37, 0x81, 0x71, 0xea, 0xe4, 0x39,
+ 0x6e, 0xa1, 0x5d, 0xc2, 0x40, 0xd1, 0xab, 0xf4,
+ 0xcf, 0x2b, 0x22, 0x5d, 0xb1, 0x60, 0x7a, 0x10,
+ 0xe6, 0xd5, 0x40, 0x1e, 0x53, 0xb4, 0x2a, 0x8d
+};
+static const u8 enc_output106[] __initconst = {
+ 0xad, 0xd1, 0x8a, 0x3f, 0xdd, 0x02, 0x4a, 0x9f,
+ 0x8f, 0x0c, 0xc8, 0x01, 0x34, 0x7b, 0xa3, 0x76,
+ 0xb0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x77, 0xf9, 0x4d, 0x34, 0x1c, 0xd0, 0x24, 0x5d,
+ 0xa9, 0x09, 0x07, 0x53, 0x24, 0x69, 0xf2, 0x01,
+ 0xb0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x77, 0xf9, 0x4d, 0x34, 0x1c, 0xd0, 0x24, 0x5d,
+ 0xa9, 0x09, 0x07, 0x53, 0x24, 0x69, 0xf2, 0x01,
+ 0xba, 0xd5, 0x8f, 0x10, 0xa9, 0x1e, 0x6a, 0x88,
+ 0x9a, 0xba, 0x32, 0xfd, 0x17, 0xd8, 0x33, 0x1a
+};
+static const u8 enc_assoc106[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce106[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x06, 0x4c, 0x2d, 0x52
+};
+static const u8 enc_key106[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - edge case intermediate sums in poly1305 */
+static const u8 enc_input107[] __initconst = {
+ 0xfe, 0x94, 0x28, 0xd0, 0x79, 0x35, 0x1f, 0x66,
+ 0x5c, 0xd0, 0x01, 0x35, 0x43, 0x19, 0x87, 0x5c,
+ 0xc0, 0x01, 0xed, 0xc5, 0xda, 0x44, 0x2e, 0x71,
+ 0x9b, 0xce, 0x9a, 0xbe, 0x27, 0x3a, 0xf1, 0x44,
+ 0xb4, 0x7a, 0xed, 0x35, 0xcb, 0x5a, 0x2f, 0xca,
+ 0xa0, 0x34, 0x6e, 0xfb, 0x93, 0x65, 0x54, 0x64,
+ 0x48, 0x02, 0x5f, 0x41, 0xfa, 0x4e, 0x33, 0x6c,
+ 0x78, 0x69, 0x57, 0xa2, 0xa7, 0xc4, 0x93, 0x0a,
+ 0x6c, 0x2d, 0x90, 0x96, 0x52, 0x4f, 0xa1, 0xb2,
+ 0xb0, 0x23, 0xb8, 0xb2, 0x88, 0x22, 0x27, 0x73,
+ 0x00, 0x26, 0x6e, 0xa1, 0xe4, 0x36, 0x44, 0xa3,
+ 0x4d, 0x8d, 0xd1, 0xdc, 0x93, 0xf2, 0xfa, 0x13
+};
+static const u8 enc_output107[] __initconst = {
+ 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x47, 0xc3, 0x27, 0xcc, 0x36, 0x5d, 0x08, 0x87,
+ 0x59, 0x09, 0x8c, 0x34, 0x1b, 0x4a, 0xed, 0x03,
+ 0xd4, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x2b, 0x0b, 0x97, 0x3f, 0x74, 0x5b, 0x28, 0xaa,
+ 0xe9, 0x37, 0xf5, 0x9f, 0x18, 0xea, 0xc7, 0x01,
+ 0xd4, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x2b, 0x0b, 0x97, 0x3f, 0x74, 0x5b, 0x28, 0xaa,
+ 0xe9, 0x37, 0xf5, 0x9f, 0x18, 0xea, 0xc7, 0x01,
+ 0xd6, 0x8c, 0xe1, 0x74, 0x07, 0x9a, 0xdd, 0x02,
+ 0x8d, 0xd0, 0x5c, 0xf8, 0x14, 0x63, 0x04, 0x88
+};
+static const u8 enc_assoc107[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce107[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x06, 0x4c, 0x2d, 0x52
+};
+static const u8 enc_key107[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - edge case intermediate sums in poly1305 */
+static const u8 enc_input108[] __initconst = {
+ 0xb5, 0x13, 0xb0, 0x6a, 0xb9, 0xac, 0x14, 0x43,
+ 0x5a, 0xcb, 0x8a, 0xa3, 0xa3, 0x7a, 0xfd, 0xb6,
+ 0x54, 0x3d, 0x35, 0xf6, 0x13, 0xe6, 0xd9, 0x09,
+ 0x3d, 0x38, 0xe9, 0x75, 0xc3, 0x8f, 0xe3, 0xb8,
+ 0x61, 0x95, 0x01, 0x93, 0xb1, 0xbf, 0x03, 0x11,
+ 0xff, 0x11, 0x79, 0x89, 0xae, 0xd9, 0xa9, 0x99,
+ 0xb0, 0xf6, 0x37, 0x81, 0x71, 0xea, 0xe4, 0x39,
+ 0x6e, 0xa1, 0x5d, 0xc2, 0x40, 0xd1, 0xab, 0xf4,
+ 0xb9, 0xc2, 0x7c, 0x30, 0x28, 0xaa, 0x8d, 0x69,
+ 0xef, 0x06, 0xaf, 0xc0, 0xb5, 0x9e, 0xda, 0x8e
+};
+static const u8 enc_output108[] __initconst = {
+ 0xb5, 0x78, 0x67, 0x45, 0x3f, 0x66, 0xf4, 0xda,
+ 0xf9, 0xe4, 0x74, 0x69, 0x1f, 0x9c, 0x85, 0x15,
+ 0xd3, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x01, 0x10, 0x13, 0x59, 0x85, 0x1a, 0xd3, 0x24,
+ 0xa0, 0xda, 0xe8, 0x8d, 0xc2, 0x43, 0x02, 0x02,
+ 0xd3, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x01, 0x10, 0x13, 0x59, 0x85, 0x1a, 0xd3, 0x24,
+ 0xa0, 0xda, 0xe8, 0x8d, 0xc2, 0x43, 0x02, 0x02,
+ 0xaa, 0x48, 0xa3, 0x88, 0x7d, 0x4b, 0x05, 0x96,
+ 0x99, 0xc2, 0xfd, 0xf9, 0xc6, 0x78, 0x7e, 0x0a
+};
+static const u8 enc_assoc108[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce108[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x06, 0x4c, 0x2d, 0x52
+};
+static const u8 enc_key108[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - edge case intermediate sums in poly1305 */
+static const u8 enc_input109[] __initconst = {
+ 0xff, 0x94, 0x28, 0xd0, 0x79, 0x35, 0x1f, 0x66,
+ 0x5c, 0xd0, 0x01, 0x35, 0x43, 0x19, 0x87, 0x5c,
+ 0xd4, 0xf1, 0x09, 0xe8, 0x14, 0xce, 0xa8, 0x5a,
+ 0x08, 0xc0, 0x11, 0xd8, 0x50, 0xdd, 0x1d, 0xcb,
+ 0xcf, 0x7a, 0xed, 0x35, 0xcb, 0x5a, 0x2f, 0xca,
+ 0xa0, 0x34, 0x6e, 0xfb, 0x93, 0x65, 0x54, 0x64,
+ 0x53, 0x40, 0xb8, 0x5a, 0x9a, 0xa0, 0x82, 0x96,
+ 0xb7, 0x7a, 0x5f, 0xc3, 0x96, 0x1f, 0x66, 0x0f,
+ 0x17, 0x2d, 0x90, 0x96, 0x52, 0x4f, 0xa1, 0xb2,
+ 0xb0, 0x23, 0xb8, 0xb2, 0x88, 0x22, 0x27, 0x73,
+ 0x1b, 0x64, 0x89, 0xba, 0x84, 0xd8, 0xf5, 0x59,
+ 0x82, 0x9e, 0xd9, 0xbd, 0xa2, 0x29, 0x0f, 0x16
+};
+static const u8 enc_output109[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x53, 0x33, 0xc3, 0xe1, 0xf8, 0xd7, 0x8e, 0xac,
+ 0xca, 0x07, 0x07, 0x52, 0x6c, 0xad, 0x01, 0x8c,
+ 0xaf, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x30, 0x49, 0x70, 0x24, 0x14, 0xb5, 0x99, 0x50,
+ 0x26, 0x24, 0xfd, 0xfe, 0x29, 0x31, 0x32, 0x04,
+ 0xaf, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x30, 0x49, 0x70, 0x24, 0x14, 0xb5, 0x99, 0x50,
+ 0x26, 0x24, 0xfd, 0xfe, 0x29, 0x31, 0x32, 0x04,
+ 0xb9, 0x36, 0xa8, 0x17, 0xf2, 0x21, 0x1a, 0xf1,
+ 0x29, 0xe2, 0xcf, 0x16, 0x0f, 0xd4, 0x2b, 0xcb
+};
+static const u8 enc_assoc109[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce109[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x06, 0x4c, 0x2d, 0x52
+};
+static const u8 enc_key109[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - edge case intermediate sums in poly1305 */
+static const u8 enc_input110[] __initconst = {
+ 0xff, 0x94, 0x28, 0xd0, 0x79, 0x35, 0x1f, 0x66,
+ 0x5c, 0xd0, 0x01, 0x35, 0x43, 0x19, 0x87, 0x5c,
+ 0xdf, 0x4c, 0x62, 0x03, 0x2d, 0x41, 0x19, 0xb5,
+ 0x88, 0x47, 0x7e, 0x99, 0x92, 0x5a, 0x56, 0xd9,
+ 0xd6, 0x7a, 0xed, 0x35, 0xcb, 0x5a, 0x2f, 0xca,
+ 0xa0, 0x34, 0x6e, 0xfb, 0x93, 0x65, 0x54, 0x64,
+ 0xfa, 0x84, 0xf0, 0x64, 0x55, 0x36, 0x42, 0x1b,
+ 0x2b, 0xb9, 0x24, 0x6e, 0xc2, 0x19, 0xed, 0x0b,
+ 0x0e, 0x2d, 0x90, 0x96, 0x52, 0x4f, 0xa1, 0xb2,
+ 0xb0, 0x23, 0xb8, 0xb2, 0x88, 0x22, 0x27, 0x73,
+ 0xb2, 0xa0, 0xc1, 0x84, 0x4b, 0x4e, 0x35, 0xd4,
+ 0x1e, 0x5d, 0xa2, 0x10, 0xf6, 0x2f, 0x84, 0x12
+};
+static const u8 enc_output110[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x58, 0x8e, 0xa8, 0x0a, 0xc1, 0x58, 0x3f, 0x43,
+ 0x4a, 0x80, 0x68, 0x13, 0xae, 0x2a, 0x4a, 0x9e,
+ 0xb6, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x99, 0x8d, 0x38, 0x1a, 0xdb, 0x23, 0x59, 0xdd,
+ 0xba, 0xe7, 0x86, 0x53, 0x7d, 0x37, 0xb9, 0x00,
+ 0xb6, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x99, 0x8d, 0x38, 0x1a, 0xdb, 0x23, 0x59, 0xdd,
+ 0xba, 0xe7, 0x86, 0x53, 0x7d, 0x37, 0xb9, 0x00,
+ 0x9f, 0x7a, 0xc4, 0x35, 0x1f, 0x6b, 0x91, 0xe6,
+ 0x30, 0x97, 0xa7, 0x13, 0x11, 0x5d, 0x05, 0xbe
+};
+static const u8 enc_assoc110[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce110[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x06, 0x4c, 0x2d, 0x52
+};
+static const u8 enc_key110[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - edge case intermediate sums in poly1305 */
+static const u8 enc_input111[] __initconst = {
+ 0xff, 0x94, 0x28, 0xd0, 0x79, 0x35, 0x1f, 0x66,
+ 0x5c, 0xd0, 0x01, 0x35, 0x43, 0x19, 0x87, 0x5c,
+ 0x13, 0xf8, 0x0a, 0x00, 0x6d, 0xc1, 0xbb, 0xda,
+ 0xd6, 0x39, 0xa9, 0x2f, 0xc7, 0xec, 0xa6, 0x55,
+ 0xf7, 0x7a, 0xed, 0x35, 0xcb, 0x5a, 0x2f, 0xca,
+ 0xa0, 0x34, 0x6e, 0xfb, 0x93, 0x65, 0x54, 0x64,
+ 0x63, 0x48, 0xb8, 0xfd, 0x29, 0xbf, 0x96, 0xd5,
+ 0x63, 0xa5, 0x17, 0xe2, 0x7d, 0x7b, 0xfc, 0x0f,
+ 0x2f, 0x2d, 0x90, 0x96, 0x52, 0x4f, 0xa1, 0xb2,
+ 0xb0, 0x23, 0xb8, 0xb2, 0x88, 0x22, 0x27, 0x73,
+ 0x2b, 0x6c, 0x89, 0x1d, 0x37, 0xc7, 0xe1, 0x1a,
+ 0x56, 0x41, 0x91, 0x9c, 0x49, 0x4d, 0x95, 0x16
+};
+static const u8 enc_output111[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x94, 0x3a, 0xc0, 0x09, 0x81, 0xd8, 0x9d, 0x2c,
+ 0x14, 0xfe, 0xbf, 0xa5, 0xfb, 0x9c, 0xba, 0x12,
+ 0x97, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x41, 0x70, 0x83, 0xa7, 0xaa, 0x8d, 0x13,
+ 0xf2, 0xfb, 0xb5, 0xdf, 0xc2, 0x55, 0xa8, 0x04,
+ 0x97, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x41, 0x70, 0x83, 0xa7, 0xaa, 0x8d, 0x13,
+ 0xf2, 0xfb, 0xb5, 0xdf, 0xc2, 0x55, 0xa8, 0x04,
+ 0x9a, 0x18, 0xa8, 0x28, 0x07, 0x02, 0x69, 0xf4,
+ 0x47, 0x00, 0xd0, 0x09, 0xe7, 0x17, 0x1c, 0xc9
+};
+static const u8 enc_assoc111[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce111[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x06, 0x4c, 0x2d, 0x52
+};
+static const u8 enc_key111[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - edge case intermediate sums in poly1305 */
+static const u8 enc_input112[] __initconst = {
+ 0xff, 0x94, 0x28, 0xd0, 0x79, 0x35, 0x1f, 0x66,
+ 0x5c, 0xd0, 0x01, 0x35, 0x43, 0x19, 0x87, 0x5c,
+ 0x82, 0xe5, 0x9b, 0x45, 0x82, 0x91, 0x50, 0x38,
+ 0xf9, 0x33, 0x81, 0x1e, 0x65, 0x2d, 0xc6, 0x6a,
+ 0xfc, 0x7a, 0xed, 0x35, 0xcb, 0x5a, 0x2f, 0xca,
+ 0xa0, 0x34, 0x6e, 0xfb, 0x93, 0x65, 0x54, 0x64,
+ 0xb6, 0x71, 0xc8, 0xca, 0xc2, 0x70, 0xc2, 0x65,
+ 0xa0, 0xac, 0x2f, 0x53, 0x57, 0x99, 0x88, 0x0a,
+ 0x24, 0x2d, 0x90, 0x96, 0x52, 0x4f, 0xa1, 0xb2,
+ 0xb0, 0x23, 0xb8, 0xb2, 0x88, 0x22, 0x27, 0x73,
+ 0xfe, 0x55, 0xf9, 0x2a, 0xdc, 0x08, 0xb5, 0xaa,
+ 0x95, 0x48, 0xa9, 0x2d, 0x63, 0xaf, 0xe1, 0x13
+};
+static const u8 enc_output112[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x05, 0x27, 0x51, 0x4c, 0x6e, 0x88, 0x76, 0xce,
+ 0x3b, 0xf4, 0x97, 0x94, 0x59, 0x5d, 0xda, 0x2d,
+ 0x9c, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xd5, 0x78, 0x00, 0xb4, 0x4c, 0x65, 0xd9, 0xa3,
+ 0x31, 0xf2, 0x8d, 0x6e, 0xe8, 0xb7, 0xdc, 0x01,
+ 0x9c, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xd5, 0x78, 0x00, 0xb4, 0x4c, 0x65, 0xd9, 0xa3,
+ 0x31, 0xf2, 0x8d, 0x6e, 0xe8, 0xb7, 0xdc, 0x01,
+ 0xb4, 0x36, 0xa8, 0x2b, 0x93, 0xd5, 0x55, 0xf7,
+ 0x43, 0x00, 0xd0, 0x19, 0x9b, 0xa7, 0x18, 0xce
+};
+static const u8 enc_assoc112[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce112[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x06, 0x4c, 0x2d, 0x52
+};
+static const u8 enc_key112[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - edge case intermediate sums in poly1305 */
+static const u8 enc_input113[] __initconst = {
+ 0xff, 0x94, 0x28, 0xd0, 0x79, 0x35, 0x1f, 0x66,
+ 0x5c, 0xd0, 0x01, 0x35, 0x43, 0x19, 0x87, 0x5c,
+ 0xf1, 0xd1, 0x28, 0x87, 0xb7, 0x21, 0x69, 0x86,
+ 0xa1, 0x2d, 0x79, 0x09, 0x8b, 0x6d, 0xe6, 0x0f,
+ 0xc0, 0x7a, 0xed, 0x35, 0xcb, 0x5a, 0x2f, 0xca,
+ 0xa0, 0x34, 0x6e, 0xfb, 0x93, 0x65, 0x54, 0x64,
+ 0xa7, 0xc7, 0x58, 0x99, 0xf3, 0xe6, 0x0a, 0xf1,
+ 0xfc, 0xb6, 0xc7, 0x30, 0x7d, 0x87, 0x59, 0x0f,
+ 0x18, 0x2d, 0x90, 0x96, 0x52, 0x4f, 0xa1, 0xb2,
+ 0xb0, 0x23, 0xb8, 0xb2, 0x88, 0x22, 0x27, 0x73,
+ 0xef, 0xe3, 0x69, 0x79, 0xed, 0x9e, 0x7d, 0x3e,
+ 0xc9, 0x52, 0x41, 0x4e, 0x49, 0xb1, 0x30, 0x16
+};
+static const u8 enc_output113[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x76, 0x13, 0xe2, 0x8e, 0x5b, 0x38, 0x4f, 0x70,
+ 0x63, 0xea, 0x6f, 0x83, 0xb7, 0x1d, 0xfa, 0x48,
+ 0xa0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xc4, 0xce, 0x90, 0xe7, 0x7d, 0xf3, 0x11, 0x37,
+ 0x6d, 0xe8, 0x65, 0x0d, 0xc2, 0xa9, 0x0d, 0x04,
+ 0xa0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xc4, 0xce, 0x90, 0xe7, 0x7d, 0xf3, 0x11, 0x37,
+ 0x6d, 0xe8, 0x65, 0x0d, 0xc2, 0xa9, 0x0d, 0x04,
+ 0xce, 0x54, 0xa8, 0x2e, 0x1f, 0xa9, 0x42, 0xfa,
+ 0x3f, 0x00, 0xd0, 0x29, 0x4f, 0x37, 0x15, 0xd3
+};
+static const u8 enc_assoc113[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce113[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x06, 0x4c, 0x2d, 0x52
+};
+static const u8 enc_key113[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - edge case intermediate sums in poly1305 */
+static const u8 enc_input114[] __initconst = {
+ 0xcb, 0xf1, 0xda, 0x9e, 0x0b, 0xa9, 0x37, 0x73,
+ 0x74, 0xe6, 0x9e, 0x1c, 0x0e, 0x60, 0x0c, 0xfc,
+ 0x34, 0x3d, 0x35, 0xf6, 0x13, 0xe6, 0xd9, 0x09,
+ 0x3d, 0x38, 0xe9, 0x75, 0xc3, 0x8f, 0xe3, 0xb8,
+ 0xbe, 0x3f, 0xa6, 0x6b, 0x6c, 0xe7, 0x80, 0x8a,
+ 0xa3, 0xe4, 0x59, 0x49, 0xf9, 0x44, 0x64, 0x9f,
+ 0xd0, 0xf6, 0x37, 0x81, 0x71, 0xea, 0xe4, 0x39,
+ 0x6e, 0xa1, 0x5d, 0xc2, 0x40, 0xd1, 0xab, 0xf4,
+ 0x66, 0x68, 0xdb, 0xc8, 0xf5, 0xf2, 0x0e, 0xf2,
+ 0xb3, 0xf3, 0x8f, 0x00, 0xe2, 0x03, 0x17, 0x88
+};
+static const u8 enc_output114[] __initconst = {
+ 0xcb, 0x9a, 0x0d, 0xb1, 0x8d, 0x63, 0xd7, 0xea,
+ 0xd7, 0xc9, 0x60, 0xd6, 0xb2, 0x86, 0x74, 0x5f,
+ 0xb3, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xde, 0xba, 0xb4, 0xa1, 0x58, 0x42, 0x50, 0xbf,
+ 0xfc, 0x2f, 0xc8, 0x4d, 0x95, 0xde, 0xcf, 0x04,
+ 0xb3, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xde, 0xba, 0xb4, 0xa1, 0x58, 0x42, 0x50, 0xbf,
+ 0xfc, 0x2f, 0xc8, 0x4d, 0x95, 0xde, 0xcf, 0x04,
+ 0x23, 0x83, 0xab, 0x0b, 0x79, 0x92, 0x05, 0x69,
+ 0x9b, 0x51, 0x0a, 0xa7, 0x09, 0xbf, 0x31, 0xf1
+};
+static const u8 enc_assoc114[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce114[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x06, 0x4c, 0x2d, 0x52
+};
+static const u8 enc_key114[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - edge case intermediate sums in poly1305 */
+static const u8 enc_input115[] __initconst = {
+ 0x8f, 0x27, 0x86, 0x94, 0xc4, 0xe9, 0xda, 0xeb,
+ 0xd5, 0x8d, 0x3e, 0x5b, 0x96, 0x6e, 0x8b, 0x68,
+ 0x42, 0x3d, 0x35, 0xf6, 0x13, 0xe6, 0xd9, 0x09,
+ 0x3d, 0x38, 0xe9, 0x75, 0xc3, 0x8f, 0xe3, 0xb8,
+ 0x06, 0x53, 0xe7, 0xa3, 0x31, 0x71, 0x88, 0x33,
+ 0xac, 0xc3, 0xb9, 0xad, 0xff, 0x1c, 0x31, 0x98,
+ 0xa6, 0xf6, 0x37, 0x81, 0x71, 0xea, 0xe4, 0x39,
+ 0x6e, 0xa1, 0x5d, 0xc2, 0x40, 0xd1, 0xab, 0xf4,
+ 0xde, 0x04, 0x9a, 0x00, 0xa8, 0x64, 0x06, 0x4b,
+ 0xbc, 0xd4, 0x6f, 0xe4, 0xe4, 0x5b, 0x42, 0x8f
+};
+static const u8 enc_output115[] __initconst = {
+ 0x8f, 0x4c, 0x51, 0xbb, 0x42, 0x23, 0x3a, 0x72,
+ 0x76, 0xa2, 0xc0, 0x91, 0x2a, 0x88, 0xf3, 0xcb,
+ 0xc5, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x66, 0xd6, 0xf5, 0x69, 0x05, 0xd4, 0x58, 0x06,
+ 0xf3, 0x08, 0x28, 0xa9, 0x93, 0x86, 0x9a, 0x03,
+ 0xc5, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x66, 0xd6, 0xf5, 0x69, 0x05, 0xd4, 0x58, 0x06,
+ 0xf3, 0x08, 0x28, 0xa9, 0x93, 0x86, 0x9a, 0x03,
+ 0x8b, 0xfb, 0xab, 0x17, 0xa9, 0xe0, 0xb8, 0x74,
+ 0x8b, 0x51, 0x0a, 0xe7, 0xd9, 0xfd, 0x23, 0x05
+};
+static const u8 enc_assoc115[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce115[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x06, 0x4c, 0x2d, 0x52
+};
+static const u8 enc_key115[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - edge case intermediate sums in poly1305 */
+static const u8 enc_input116[] __initconst = {
+ 0xd5, 0x94, 0x28, 0xd0, 0x79, 0x35, 0x1f, 0x66,
+ 0x5c, 0xd0, 0x01, 0x35, 0x43, 0x19, 0x87, 0x5c,
+ 0x9a, 0x22, 0xd7, 0x0a, 0x48, 0xe2, 0x4f, 0xdd,
+ 0xcd, 0xd4, 0x41, 0x9d, 0xe6, 0x4c, 0x8f, 0x44,
+ 0xfc, 0x7a, 0xed, 0x35, 0xcb, 0x5a, 0x2f, 0xca,
+ 0xa0, 0x34, 0x6e, 0xfb, 0x93, 0x65, 0x54, 0x64,
+ 0x77, 0xb5, 0xc9, 0x07, 0xd9, 0xc9, 0xe1, 0xea,
+ 0x51, 0x85, 0x1a, 0x20, 0x4a, 0xad, 0x9f, 0x0a,
+ 0x24, 0x2d, 0x90, 0x96, 0x52, 0x4f, 0xa1, 0xb2,
+ 0xb0, 0x23, 0xb8, 0xb2, 0x88, 0x22, 0x27, 0x73,
+ 0x3f, 0x91, 0xf8, 0xe7, 0xc7, 0xb1, 0x96, 0x25,
+ 0x64, 0x61, 0x9c, 0x5e, 0x7e, 0x9b, 0xf6, 0x13
+};
+static const u8 enc_output116[] __initconst = {
+ 0xd5, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x1d, 0xe0, 0x1d, 0x03, 0xa4, 0xfb, 0x69, 0x2b,
+ 0x0f, 0x13, 0x57, 0x17, 0xda, 0x3c, 0x93, 0x03,
+ 0x9c, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x14, 0xbc, 0x01, 0x79, 0x57, 0xdc, 0xfa, 0x2c,
+ 0xc0, 0xdb, 0xb8, 0x1d, 0xf5, 0x83, 0xcb, 0x01,
+ 0x9c, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x14, 0xbc, 0x01, 0x79, 0x57, 0xdc, 0xfa, 0x2c,
+ 0xc0, 0xdb, 0xb8, 0x1d, 0xf5, 0x83, 0xcb, 0x01,
+ 0x49, 0xbc, 0x6e, 0x9f, 0xc5, 0x1c, 0x4d, 0x50,
+ 0x30, 0x36, 0x64, 0x4d, 0x84, 0x27, 0x73, 0xd2
+};
+static const u8 enc_assoc116[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce116[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x06, 0x4c, 0x2d, 0x52
+};
+static const u8 enc_key116[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - edge case intermediate sums in poly1305 */
+static const u8 enc_input117[] __initconst = {
+ 0xdb, 0x94, 0x28, 0xd0, 0x79, 0x35, 0x1f, 0x66,
+ 0x5c, 0xd0, 0x01, 0x35, 0x43, 0x19, 0x87, 0x5c,
+ 0x75, 0xd5, 0x64, 0x3a, 0xa5, 0xaf, 0x93, 0x4d,
+ 0x8c, 0xce, 0x39, 0x2c, 0xc3, 0xee, 0xdb, 0x47,
+ 0xc0, 0x7a, 0xed, 0x35, 0xcb, 0x5a, 0x2f, 0xca,
+ 0xa0, 0x34, 0x6e, 0xfb, 0x93, 0x65, 0x54, 0x64,
+ 0x60, 0x1b, 0x5a, 0xd2, 0x06, 0x7f, 0x28, 0x06,
+ 0x6a, 0x8f, 0x32, 0x81, 0x71, 0x5b, 0xa8, 0x08,
+ 0x18, 0x2d, 0x90, 0x96, 0x52, 0x4f, 0xa1, 0xb2,
+ 0xb0, 0x23, 0xb8, 0xb2, 0x88, 0x22, 0x27, 0x73,
+ 0x28, 0x3f, 0x6b, 0x32, 0x18, 0x07, 0x5f, 0xc9,
+ 0x5f, 0x6b, 0xb4, 0xff, 0x45, 0x6d, 0xc1, 0x11
+};
+static const u8 enc_output117[] __initconst = {
+ 0xdb, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xf2, 0x17, 0xae, 0x33, 0x49, 0xb6, 0xb5, 0xbb,
+ 0x4e, 0x09, 0x2f, 0xa6, 0xff, 0x9e, 0xc7, 0x00,
+ 0xa0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x03, 0x12, 0x92, 0xac, 0x88, 0x6a, 0x33, 0xc0,
+ 0xfb, 0xd1, 0x90, 0xbc, 0xce, 0x75, 0xfc, 0x03,
+ 0xa0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x03, 0x12, 0x92, 0xac, 0x88, 0x6a, 0x33, 0xc0,
+ 0xfb, 0xd1, 0x90, 0xbc, 0xce, 0x75, 0xfc, 0x03,
+ 0x63, 0xda, 0x6e, 0xa2, 0x51, 0xf0, 0x39, 0x53,
+ 0x2c, 0x36, 0x64, 0x5d, 0x38, 0xb7, 0x6f, 0xd7
+};
+static const u8 enc_assoc117[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce117[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x06, 0x4c, 0x2d, 0x52
+};
+static const u8 enc_key117[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+/* wycheproof - edge case intermediate sums in poly1305 */
+static const u8 enc_input118[] __initconst = {
+ 0x93, 0x94, 0x28, 0xd0, 0x79, 0x35, 0x1f, 0x66,
+ 0x5c, 0xd0, 0x01, 0x35, 0x43, 0x19, 0x87, 0x5c,
+ 0x62, 0x48, 0x39, 0x60, 0x42, 0x16, 0xe4, 0x03,
+ 0xeb, 0xcc, 0x6a, 0xf5, 0x59, 0xec, 0x8b, 0x43,
+ 0x97, 0x7a, 0xed, 0x35, 0xcb, 0x5a, 0x2f, 0xca,
+ 0xa0, 0x34, 0x6e, 0xfb, 0x93, 0x65, 0x54, 0x64,
+ 0xd8, 0xc8, 0xc3, 0xfa, 0x1a, 0x9e, 0x47, 0x4a,
+ 0xbe, 0x52, 0xd0, 0x2c, 0x81, 0x87, 0xe9, 0x0f,
+ 0x4f, 0x2d, 0x90, 0x96, 0x52, 0x4f, 0xa1, 0xb2,
+ 0xb0, 0x23, 0xb8, 0xb2, 0x88, 0x22, 0x27, 0x73,
+ 0x90, 0xec, 0xf2, 0x1a, 0x04, 0xe6, 0x30, 0x85,
+ 0x8b, 0xb6, 0x56, 0x52, 0xb5, 0xb1, 0x80, 0x16
+};
+static const u8 enc_output118[] __initconst = {
+ 0x93, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xe5, 0x8a, 0xf3, 0x69, 0xae, 0x0f, 0xc2, 0xf5,
+ 0x29, 0x0b, 0x7c, 0x7f, 0x65, 0x9c, 0x97, 0x04,
+ 0xf7, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xbb, 0xc1, 0x0b, 0x84, 0x94, 0x8b, 0x5c, 0x8c,
+ 0x2f, 0x0c, 0x72, 0x11, 0x3e, 0xa9, 0xbd, 0x04,
+ 0xf7, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xbb, 0xc1, 0x0b, 0x84, 0x94, 0x8b, 0x5c, 0x8c,
+ 0x2f, 0x0c, 0x72, 0x11, 0x3e, 0xa9, 0xbd, 0x04,
+ 0x73, 0xeb, 0x27, 0x24, 0xb5, 0xc4, 0x05, 0xf0,
+ 0x4d, 0x00, 0xd0, 0xf1, 0x58, 0x40, 0xa1, 0xc1
+};
+static const u8 enc_assoc118[] __initconst = {
+ 0xff, 0xff, 0xff, 0xff
+};
+static const u8 enc_nonce118[] __initconst = {
+ 0x00, 0x00, 0x00, 0x00, 0x06, 0x4c, 0x2d, 0x52
+};
+static const u8 enc_key118[] __initconst = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+};
+
+static const struct chacha20poly1305_testvec
+chacha20poly1305_enc_vectors[] __initconst = {
+ { enc_input001, enc_output001, enc_assoc001, enc_nonce001, enc_key001,
+ sizeof(enc_input001), sizeof(enc_assoc001), sizeof(enc_nonce001) },
+ { enc_input002, enc_output002, enc_assoc002, enc_nonce002, enc_key002,
+ sizeof(enc_input002), sizeof(enc_assoc002), sizeof(enc_nonce002) },
+ { enc_input003, enc_output003, enc_assoc003, enc_nonce003, enc_key003,
+ sizeof(enc_input003), sizeof(enc_assoc003), sizeof(enc_nonce003) },
+ { enc_input004, enc_output004, enc_assoc004, enc_nonce004, enc_key004,
+ sizeof(enc_input004), sizeof(enc_assoc004), sizeof(enc_nonce004) },
+ { enc_input005, enc_output005, enc_assoc005, enc_nonce005, enc_key005,
+ sizeof(enc_input005), sizeof(enc_assoc005), sizeof(enc_nonce005) },
+ { enc_input006, enc_output006, enc_assoc006, enc_nonce006, enc_key006,
+ sizeof(enc_input006), sizeof(enc_assoc006), sizeof(enc_nonce006) },
+ { enc_input007, enc_output007, enc_assoc007, enc_nonce007, enc_key007,
+ sizeof(enc_input007), sizeof(enc_assoc007), sizeof(enc_nonce007) },
+ { enc_input008, enc_output008, enc_assoc008, enc_nonce008, enc_key008,
+ sizeof(enc_input008), sizeof(enc_assoc008), sizeof(enc_nonce008) },
+ { enc_input009, enc_output009, enc_assoc009, enc_nonce009, enc_key009,
+ sizeof(enc_input009), sizeof(enc_assoc009), sizeof(enc_nonce009) },
+ { enc_input010, enc_output010, enc_assoc010, enc_nonce010, enc_key010,
+ sizeof(enc_input010), sizeof(enc_assoc010), sizeof(enc_nonce010) },
+ { enc_input011, enc_output011, enc_assoc011, enc_nonce011, enc_key011,
+ sizeof(enc_input011), sizeof(enc_assoc011), sizeof(enc_nonce011) },
+ { enc_input012, enc_output012, enc_assoc012, enc_nonce012, enc_key012,
+ sizeof(enc_input012), sizeof(enc_assoc012), sizeof(enc_nonce012) },
+ { enc_input013, enc_output013, enc_assoc013, enc_nonce013, enc_key013,
+ sizeof(enc_input013), sizeof(enc_assoc013), sizeof(enc_nonce013) },
+ { enc_input014, enc_output014, enc_assoc014, enc_nonce014, enc_key014,
+ sizeof(enc_input014), sizeof(enc_assoc014), sizeof(enc_nonce014) },
+ { enc_input015, enc_output015, enc_assoc015, enc_nonce015, enc_key015,
+ sizeof(enc_input015), sizeof(enc_assoc015), sizeof(enc_nonce015) },
+ { enc_input016, enc_output016, enc_assoc016, enc_nonce016, enc_key016,
+ sizeof(enc_input016), sizeof(enc_assoc016), sizeof(enc_nonce016) },
+ { enc_input017, enc_output017, enc_assoc017, enc_nonce017, enc_key017,
+ sizeof(enc_input017), sizeof(enc_assoc017), sizeof(enc_nonce017) },
+ { enc_input018, enc_output018, enc_assoc018, enc_nonce018, enc_key018,
+ sizeof(enc_input018), sizeof(enc_assoc018), sizeof(enc_nonce018) },
+ { enc_input019, enc_output019, enc_assoc019, enc_nonce019, enc_key019,
+ sizeof(enc_input019), sizeof(enc_assoc019), sizeof(enc_nonce019) },
+ { enc_input020, enc_output020, enc_assoc020, enc_nonce020, enc_key020,
+ sizeof(enc_input020), sizeof(enc_assoc020), sizeof(enc_nonce020) },
+ { enc_input021, enc_output021, enc_assoc021, enc_nonce021, enc_key021,
+ sizeof(enc_input021), sizeof(enc_assoc021), sizeof(enc_nonce021) },
+ { enc_input022, enc_output022, enc_assoc022, enc_nonce022, enc_key022,
+ sizeof(enc_input022), sizeof(enc_assoc022), sizeof(enc_nonce022) },
+ { enc_input023, enc_output023, enc_assoc023, enc_nonce023, enc_key023,
+ sizeof(enc_input023), sizeof(enc_assoc023), sizeof(enc_nonce023) },
+ { enc_input024, enc_output024, enc_assoc024, enc_nonce024, enc_key024,
+ sizeof(enc_input024), sizeof(enc_assoc024), sizeof(enc_nonce024) },
+ { enc_input025, enc_output025, enc_assoc025, enc_nonce025, enc_key025,
+ sizeof(enc_input025), sizeof(enc_assoc025), sizeof(enc_nonce025) },
+ { enc_input026, enc_output026, enc_assoc026, enc_nonce026, enc_key026,
+ sizeof(enc_input026), sizeof(enc_assoc026), sizeof(enc_nonce026) },
+ { enc_input027, enc_output027, enc_assoc027, enc_nonce027, enc_key027,
+ sizeof(enc_input027), sizeof(enc_assoc027), sizeof(enc_nonce027) },
+ { enc_input028, enc_output028, enc_assoc028, enc_nonce028, enc_key028,
+ sizeof(enc_input028), sizeof(enc_assoc028), sizeof(enc_nonce028) },
+ { enc_input029, enc_output029, enc_assoc029, enc_nonce029, enc_key029,
+ sizeof(enc_input029), sizeof(enc_assoc029), sizeof(enc_nonce029) },
+ { enc_input030, enc_output030, enc_assoc030, enc_nonce030, enc_key030,
+ sizeof(enc_input030), sizeof(enc_assoc030), sizeof(enc_nonce030) },
+ { enc_input031, enc_output031, enc_assoc031, enc_nonce031, enc_key031,
+ sizeof(enc_input031), sizeof(enc_assoc031), sizeof(enc_nonce031) },
+ { enc_input032, enc_output032, enc_assoc032, enc_nonce032, enc_key032,
+ sizeof(enc_input032), sizeof(enc_assoc032), sizeof(enc_nonce032) },
+ { enc_input033, enc_output033, enc_assoc033, enc_nonce033, enc_key033,
+ sizeof(enc_input033), sizeof(enc_assoc033), sizeof(enc_nonce033) },
+ { enc_input034, enc_output034, enc_assoc034, enc_nonce034, enc_key034,
+ sizeof(enc_input034), sizeof(enc_assoc034), sizeof(enc_nonce034) },
+ { enc_input035, enc_output035, enc_assoc035, enc_nonce035, enc_key035,
+ sizeof(enc_input035), sizeof(enc_assoc035), sizeof(enc_nonce035) },
+ { enc_input036, enc_output036, enc_assoc036, enc_nonce036, enc_key036,
+ sizeof(enc_input036), sizeof(enc_assoc036), sizeof(enc_nonce036) },
+ { enc_input037, enc_output037, enc_assoc037, enc_nonce037, enc_key037,
+ sizeof(enc_input037), sizeof(enc_assoc037), sizeof(enc_nonce037) },
+ { enc_input038, enc_output038, enc_assoc038, enc_nonce038, enc_key038,
+ sizeof(enc_input038), sizeof(enc_assoc038), sizeof(enc_nonce038) },
+ { enc_input039, enc_output039, enc_assoc039, enc_nonce039, enc_key039,
+ sizeof(enc_input039), sizeof(enc_assoc039), sizeof(enc_nonce039) },
+ { enc_input040, enc_output040, enc_assoc040, enc_nonce040, enc_key040,
+ sizeof(enc_input040), sizeof(enc_assoc040), sizeof(enc_nonce040) },
+ { enc_input041, enc_output041, enc_assoc041, enc_nonce041, enc_key041,
+ sizeof(enc_input041), sizeof(enc_assoc041), sizeof(enc_nonce041) },
+ { enc_input042, enc_output042, enc_assoc042, enc_nonce042, enc_key042,
+ sizeof(enc_input042), sizeof(enc_assoc042), sizeof(enc_nonce042) },
+ { enc_input043, enc_output043, enc_assoc043, enc_nonce043, enc_key043,
+ sizeof(enc_input043), sizeof(enc_assoc043), sizeof(enc_nonce043) },
+ { enc_input044, enc_output044, enc_assoc044, enc_nonce044, enc_key044,
+ sizeof(enc_input044), sizeof(enc_assoc044), sizeof(enc_nonce044) },
+ { enc_input045, enc_output045, enc_assoc045, enc_nonce045, enc_key045,
+ sizeof(enc_input045), sizeof(enc_assoc045), sizeof(enc_nonce045) },
+ { enc_input046, enc_output046, enc_assoc046, enc_nonce046, enc_key046,
+ sizeof(enc_input046), sizeof(enc_assoc046), sizeof(enc_nonce046) },
+ { enc_input047, enc_output047, enc_assoc047, enc_nonce047, enc_key047,
+ sizeof(enc_input047), sizeof(enc_assoc047), sizeof(enc_nonce047) },
+ { enc_input048, enc_output048, enc_assoc048, enc_nonce048, enc_key048,
+ sizeof(enc_input048), sizeof(enc_assoc048), sizeof(enc_nonce048) },
+ { enc_input049, enc_output049, enc_assoc049, enc_nonce049, enc_key049,
+ sizeof(enc_input049), sizeof(enc_assoc049), sizeof(enc_nonce049) },
+ { enc_input050, enc_output050, enc_assoc050, enc_nonce050, enc_key050,
+ sizeof(enc_input050), sizeof(enc_assoc050), sizeof(enc_nonce050) },
+ { enc_input051, enc_output051, enc_assoc051, enc_nonce051, enc_key051,
+ sizeof(enc_input051), sizeof(enc_assoc051), sizeof(enc_nonce051) },
+ { enc_input052, enc_output052, enc_assoc052, enc_nonce052, enc_key052,
+ sizeof(enc_input052), sizeof(enc_assoc052), sizeof(enc_nonce052) },
+ { enc_input053, enc_output053, enc_assoc053, enc_nonce053, enc_key053,
+ sizeof(enc_input053), sizeof(enc_assoc053), sizeof(enc_nonce053) },
+ { enc_input054, enc_output054, enc_assoc054, enc_nonce054, enc_key054,
+ sizeof(enc_input054), sizeof(enc_assoc054), sizeof(enc_nonce054) },
+ { enc_input055, enc_output055, enc_assoc055, enc_nonce055, enc_key055,
+ sizeof(enc_input055), sizeof(enc_assoc055), sizeof(enc_nonce055) },
+ { enc_input056, enc_output056, enc_assoc056, enc_nonce056, enc_key056,
+ sizeof(enc_input056), sizeof(enc_assoc056), sizeof(enc_nonce056) },
+ { enc_input057, enc_output057, enc_assoc057, enc_nonce057, enc_key057,
+ sizeof(enc_input057), sizeof(enc_assoc057), sizeof(enc_nonce057) },
+ { enc_input058, enc_output058, enc_assoc058, enc_nonce058, enc_key058,
+ sizeof(enc_input058), sizeof(enc_assoc058), sizeof(enc_nonce058) },
+ { enc_input059, enc_output059, enc_assoc059, enc_nonce059, enc_key059,
+ sizeof(enc_input059), sizeof(enc_assoc059), sizeof(enc_nonce059) },
+ { enc_input060, enc_output060, enc_assoc060, enc_nonce060, enc_key060,
+ sizeof(enc_input060), sizeof(enc_assoc060), sizeof(enc_nonce060) },
+ { enc_input061, enc_output061, enc_assoc061, enc_nonce061, enc_key061,
+ sizeof(enc_input061), sizeof(enc_assoc061), sizeof(enc_nonce061) },
+ { enc_input062, enc_output062, enc_assoc062, enc_nonce062, enc_key062,
+ sizeof(enc_input062), sizeof(enc_assoc062), sizeof(enc_nonce062) },
+ { enc_input063, enc_output063, enc_assoc063, enc_nonce063, enc_key063,
+ sizeof(enc_input063), sizeof(enc_assoc063), sizeof(enc_nonce063) },
+ { enc_input064, enc_output064, enc_assoc064, enc_nonce064, enc_key064,
+ sizeof(enc_input064), sizeof(enc_assoc064), sizeof(enc_nonce064) },
+ { enc_input065, enc_output065, enc_assoc065, enc_nonce065, enc_key065,
+ sizeof(enc_input065), sizeof(enc_assoc065), sizeof(enc_nonce065) },
+ { enc_input066, enc_output066, enc_assoc066, enc_nonce066, enc_key066,
+ sizeof(enc_input066), sizeof(enc_assoc066), sizeof(enc_nonce066) },
+ { enc_input067, enc_output067, enc_assoc067, enc_nonce067, enc_key067,
+ sizeof(enc_input067), sizeof(enc_assoc067), sizeof(enc_nonce067) },
+ { enc_input068, enc_output068, enc_assoc068, enc_nonce068, enc_key068,
+ sizeof(enc_input068), sizeof(enc_assoc068), sizeof(enc_nonce068) },
+ { enc_input069, enc_output069, enc_assoc069, enc_nonce069, enc_key069,
+ sizeof(enc_input069), sizeof(enc_assoc069), sizeof(enc_nonce069) },
+ { enc_input070, enc_output070, enc_assoc070, enc_nonce070, enc_key070,
+ sizeof(enc_input070), sizeof(enc_assoc070), sizeof(enc_nonce070) },
+ { enc_input071, enc_output071, enc_assoc071, enc_nonce071, enc_key071,
+ sizeof(enc_input071), sizeof(enc_assoc071), sizeof(enc_nonce071) },
+ { enc_input072, enc_output072, enc_assoc072, enc_nonce072, enc_key072,
+ sizeof(enc_input072), sizeof(enc_assoc072), sizeof(enc_nonce072) },
+ { enc_input073, enc_output073, enc_assoc073, enc_nonce073, enc_key073,
+ sizeof(enc_input073), sizeof(enc_assoc073), sizeof(enc_nonce073) },
+ { enc_input074, enc_output074, enc_assoc074, enc_nonce074, enc_key074,
+ sizeof(enc_input074), sizeof(enc_assoc074), sizeof(enc_nonce074) },
+ { enc_input075, enc_output075, enc_assoc075, enc_nonce075, enc_key075,
+ sizeof(enc_input075), sizeof(enc_assoc075), sizeof(enc_nonce075) },
+ { enc_input076, enc_output076, enc_assoc076, enc_nonce076, enc_key076,
+ sizeof(enc_input076), sizeof(enc_assoc076), sizeof(enc_nonce076) },
+ { enc_input077, enc_output077, enc_assoc077, enc_nonce077, enc_key077,
+ sizeof(enc_input077), sizeof(enc_assoc077), sizeof(enc_nonce077) },
+ { enc_input078, enc_output078, enc_assoc078, enc_nonce078, enc_key078,
+ sizeof(enc_input078), sizeof(enc_assoc078), sizeof(enc_nonce078) },
+ { enc_input079, enc_output079, enc_assoc079, enc_nonce079, enc_key079,
+ sizeof(enc_input079), sizeof(enc_assoc079), sizeof(enc_nonce079) },
+ { enc_input080, enc_output080, enc_assoc080, enc_nonce080, enc_key080,
+ sizeof(enc_input080), sizeof(enc_assoc080), sizeof(enc_nonce080) },
+ { enc_input081, enc_output081, enc_assoc081, enc_nonce081, enc_key081,
+ sizeof(enc_input081), sizeof(enc_assoc081), sizeof(enc_nonce081) },
+ { enc_input082, enc_output082, enc_assoc082, enc_nonce082, enc_key082,
+ sizeof(enc_input082), sizeof(enc_assoc082), sizeof(enc_nonce082) },
+ { enc_input083, enc_output083, enc_assoc083, enc_nonce083, enc_key083,
+ sizeof(enc_input083), sizeof(enc_assoc083), sizeof(enc_nonce083) },
+ { enc_input084, enc_output084, enc_assoc084, enc_nonce084, enc_key084,
+ sizeof(enc_input084), sizeof(enc_assoc084), sizeof(enc_nonce084) },
+ { enc_input085, enc_output085, enc_assoc085, enc_nonce085, enc_key085,
+ sizeof(enc_input085), sizeof(enc_assoc085), sizeof(enc_nonce085) },
+ { enc_input086, enc_output086, enc_assoc086, enc_nonce086, enc_key086,
+ sizeof(enc_input086), sizeof(enc_assoc086), sizeof(enc_nonce086) },
+ { enc_input087, enc_output087, enc_assoc087, enc_nonce087, enc_key087,
+ sizeof(enc_input087), sizeof(enc_assoc087), sizeof(enc_nonce087) },
+ { enc_input088, enc_output088, enc_assoc088, enc_nonce088, enc_key088,
+ sizeof(enc_input088), sizeof(enc_assoc088), sizeof(enc_nonce088) },
+ { enc_input089, enc_output089, enc_assoc089, enc_nonce089, enc_key089,
+ sizeof(enc_input089), sizeof(enc_assoc089), sizeof(enc_nonce089) },
+ { enc_input090, enc_output090, enc_assoc090, enc_nonce090, enc_key090,
+ sizeof(enc_input090), sizeof(enc_assoc090), sizeof(enc_nonce090) },
+ { enc_input091, enc_output091, enc_assoc091, enc_nonce091, enc_key091,
+ sizeof(enc_input091), sizeof(enc_assoc091), sizeof(enc_nonce091) },
+ { enc_input092, enc_output092, enc_assoc092, enc_nonce092, enc_key092,
+ sizeof(enc_input092), sizeof(enc_assoc092), sizeof(enc_nonce092) },
+ { enc_input093, enc_output093, enc_assoc093, enc_nonce093, enc_key093,
+ sizeof(enc_input093), sizeof(enc_assoc093), sizeof(enc_nonce093) },
+ { enc_input094, enc_output094, enc_assoc094, enc_nonce094, enc_key094,
+ sizeof(enc_input094), sizeof(enc_assoc094), sizeof(enc_nonce094) },
+ { enc_input095, enc_output095, enc_assoc095, enc_nonce095, enc_key095,
+ sizeof(enc_input095), sizeof(enc_assoc095), sizeof(enc_nonce095) },
+ { enc_input096, enc_output096, enc_assoc096, enc_nonce096, enc_key096,
+ sizeof(enc_input096), sizeof(enc_assoc096), sizeof(enc_nonce096) },
+ { enc_input097, enc_output097, enc_assoc097, enc_nonce097, enc_key097,
+ sizeof(enc_input097), sizeof(enc_assoc097), sizeof(enc_nonce097) },
+ { enc_input098, enc_output098, enc_assoc098, enc_nonce098, enc_key098,
+ sizeof(enc_input098), sizeof(enc_assoc098), sizeof(enc_nonce098) },
+ { enc_input099, enc_output099, enc_assoc099, enc_nonce099, enc_key099,
+ sizeof(enc_input099), sizeof(enc_assoc099), sizeof(enc_nonce099) },
+ { enc_input100, enc_output100, enc_assoc100, enc_nonce100, enc_key100,
+ sizeof(enc_input100), sizeof(enc_assoc100), sizeof(enc_nonce100) },
+ { enc_input101, enc_output101, enc_assoc101, enc_nonce101, enc_key101,
+ sizeof(enc_input101), sizeof(enc_assoc101), sizeof(enc_nonce101) },
+ { enc_input102, enc_output102, enc_assoc102, enc_nonce102, enc_key102,
+ sizeof(enc_input102), sizeof(enc_assoc102), sizeof(enc_nonce102) },
+ { enc_input103, enc_output103, enc_assoc103, enc_nonce103, enc_key103,
+ sizeof(enc_input103), sizeof(enc_assoc103), sizeof(enc_nonce103) },
+ { enc_input104, enc_output104, enc_assoc104, enc_nonce104, enc_key104,
+ sizeof(enc_input104), sizeof(enc_assoc104), sizeof(enc_nonce104) },
+ { enc_input105, enc_output105, enc_assoc105, enc_nonce105, enc_key105,
+ sizeof(enc_input105), sizeof(enc_assoc105), sizeof(enc_nonce105) },
+ { enc_input106, enc_output106, enc_assoc106, enc_nonce106, enc_key106,
+ sizeof(enc_input106), sizeof(enc_assoc106), sizeof(enc_nonce106) },
+ { enc_input107, enc_output107, enc_assoc107, enc_nonce107, enc_key107,
+ sizeof(enc_input107), sizeof(enc_assoc107), sizeof(enc_nonce107) },
+ { enc_input108, enc_output108, enc_assoc108, enc_nonce108, enc_key108,
+ sizeof(enc_input108), sizeof(enc_assoc108), sizeof(enc_nonce108) },
+ { enc_input109, enc_output109, enc_assoc109, enc_nonce109, enc_key109,
+ sizeof(enc_input109), sizeof(enc_assoc109), sizeof(enc_nonce109) },
+ { enc_input110, enc_output110, enc_assoc110, enc_nonce110, enc_key110,
+ sizeof(enc_input110), sizeof(enc_assoc110), sizeof(enc_nonce110) },
+ { enc_input111, enc_output111, enc_assoc111, enc_nonce111, enc_key111,
+ sizeof(enc_input111), sizeof(enc_assoc111), sizeof(enc_nonce111) },
+ { enc_input112, enc_output112, enc_assoc112, enc_nonce112, enc_key112,
+ sizeof(enc_input112), sizeof(enc_assoc112), sizeof(enc_nonce112) },
+ { enc_input113, enc_output113, enc_assoc113, enc_nonce113, enc_key113,
+ sizeof(enc_input113), sizeof(enc_assoc113), sizeof(enc_nonce113) },
+ { enc_input114, enc_output114, enc_assoc114, enc_nonce114, enc_key114,
+ sizeof(enc_input114), sizeof(enc_assoc114), sizeof(enc_nonce114) },
+ { enc_input115, enc_output115, enc_assoc115, enc_nonce115, enc_key115,
+ sizeof(enc_input115), sizeof(enc_assoc115), sizeof(enc_nonce115) },
+ { enc_input116, enc_output116, enc_assoc116, enc_nonce116, enc_key116,
+ sizeof(enc_input116), sizeof(enc_assoc116), sizeof(enc_nonce116) },
+ { enc_input117, enc_output117, enc_assoc117, enc_nonce117, enc_key117,
+ sizeof(enc_input117), sizeof(enc_assoc117), sizeof(enc_nonce117) },
+ { enc_input118, enc_output118, enc_assoc118, enc_nonce118, enc_key118,
+ sizeof(enc_input118), sizeof(enc_assoc118), sizeof(enc_nonce118) }
+};
+
+static const u8 dec_input001[] __initconst = {
+ 0x64, 0xa0, 0x86, 0x15, 0x75, 0x86, 0x1a, 0xf4,
+ 0x60, 0xf0, 0x62, 0xc7, 0x9b, 0xe6, 0x43, 0xbd,
+ 0x5e, 0x80, 0x5c, 0xfd, 0x34, 0x5c, 0xf3, 0x89,
+ 0xf1, 0x08, 0x67, 0x0a, 0xc7, 0x6c, 0x8c, 0xb2,
+ 0x4c, 0x6c, 0xfc, 0x18, 0x75, 0x5d, 0x43, 0xee,
+ 0xa0, 0x9e, 0xe9, 0x4e, 0x38, 0x2d, 0x26, 0xb0,
+ 0xbd, 0xb7, 0xb7, 0x3c, 0x32, 0x1b, 0x01, 0x00,
+ 0xd4, 0xf0, 0x3b, 0x7f, 0x35, 0x58, 0x94, 0xcf,
+ 0x33, 0x2f, 0x83, 0x0e, 0x71, 0x0b, 0x97, 0xce,
+ 0x98, 0xc8, 0xa8, 0x4a, 0xbd, 0x0b, 0x94, 0x81,
+ 0x14, 0xad, 0x17, 0x6e, 0x00, 0x8d, 0x33, 0xbd,
+ 0x60, 0xf9, 0x82, 0xb1, 0xff, 0x37, 0xc8, 0x55,
+ 0x97, 0x97, 0xa0, 0x6e, 0xf4, 0xf0, 0xef, 0x61,
+ 0xc1, 0x86, 0x32, 0x4e, 0x2b, 0x35, 0x06, 0x38,
+ 0x36, 0x06, 0x90, 0x7b, 0x6a, 0x7c, 0x02, 0xb0,
+ 0xf9, 0xf6, 0x15, 0x7b, 0x53, 0xc8, 0x67, 0xe4,
+ 0xb9, 0x16, 0x6c, 0x76, 0x7b, 0x80, 0x4d, 0x46,
+ 0xa5, 0x9b, 0x52, 0x16, 0xcd, 0xe7, 0xa4, 0xe9,
+ 0x90, 0x40, 0xc5, 0xa4, 0x04, 0x33, 0x22, 0x5e,
+ 0xe2, 0x82, 0xa1, 0xb0, 0xa0, 0x6c, 0x52, 0x3e,
+ 0xaf, 0x45, 0x34, 0xd7, 0xf8, 0x3f, 0xa1, 0x15,
+ 0x5b, 0x00, 0x47, 0x71, 0x8c, 0xbc, 0x54, 0x6a,
+ 0x0d, 0x07, 0x2b, 0x04, 0xb3, 0x56, 0x4e, 0xea,
+ 0x1b, 0x42, 0x22, 0x73, 0xf5, 0x48, 0x27, 0x1a,
+ 0x0b, 0xb2, 0x31, 0x60, 0x53, 0xfa, 0x76, 0x99,
+ 0x19, 0x55, 0xeb, 0xd6, 0x31, 0x59, 0x43, 0x4e,
+ 0xce, 0xbb, 0x4e, 0x46, 0x6d, 0xae, 0x5a, 0x10,
+ 0x73, 0xa6, 0x72, 0x76, 0x27, 0x09, 0x7a, 0x10,
+ 0x49, 0xe6, 0x17, 0xd9, 0x1d, 0x36, 0x10, 0x94,
+ 0xfa, 0x68, 0xf0, 0xff, 0x77, 0x98, 0x71, 0x30,
+ 0x30, 0x5b, 0xea, 0xba, 0x2e, 0xda, 0x04, 0xdf,
+ 0x99, 0x7b, 0x71, 0x4d, 0x6c, 0x6f, 0x2c, 0x29,
+ 0xa6, 0xad, 0x5c, 0xb4, 0x02, 0x2b, 0x02, 0x70,
+ 0x9b, 0xee, 0xad, 0x9d, 0x67, 0x89, 0x0c, 0xbb,
+ 0x22, 0x39, 0x23, 0x36, 0xfe, 0xa1, 0x85, 0x1f,
+ 0x38
+};
+static const u8 dec_output001[] __initconst = {
+ 0x49, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74,
+ 0x2d, 0x44, 0x72, 0x61, 0x66, 0x74, 0x73, 0x20,
+ 0x61, 0x72, 0x65, 0x20, 0x64, 0x72, 0x61, 0x66,
+ 0x74, 0x20, 0x64, 0x6f, 0x63, 0x75, 0x6d, 0x65,
+ 0x6e, 0x74, 0x73, 0x20, 0x76, 0x61, 0x6c, 0x69,
+ 0x64, 0x20, 0x66, 0x6f, 0x72, 0x20, 0x61, 0x20,
+ 0x6d, 0x61, 0x78, 0x69, 0x6d, 0x75, 0x6d, 0x20,
+ 0x6f, 0x66, 0x20, 0x73, 0x69, 0x78, 0x20, 0x6d,
+ 0x6f, 0x6e, 0x74, 0x68, 0x73, 0x20, 0x61, 0x6e,
+ 0x64, 0x20, 0x6d, 0x61, 0x79, 0x20, 0x62, 0x65,
+ 0x20, 0x75, 0x70, 0x64, 0x61, 0x74, 0x65, 0x64,
+ 0x2c, 0x20, 0x72, 0x65, 0x70, 0x6c, 0x61, 0x63,
+ 0x65, 0x64, 0x2c, 0x20, 0x6f, 0x72, 0x20, 0x6f,
+ 0x62, 0x73, 0x6f, 0x6c, 0x65, 0x74, 0x65, 0x64,
+ 0x20, 0x62, 0x79, 0x20, 0x6f, 0x74, 0x68, 0x65,
+ 0x72, 0x20, 0x64, 0x6f, 0x63, 0x75, 0x6d, 0x65,
+ 0x6e, 0x74, 0x73, 0x20, 0x61, 0x74, 0x20, 0x61,
+ 0x6e, 0x79, 0x20, 0x74, 0x69, 0x6d, 0x65, 0x2e,
+ 0x20, 0x49, 0x74, 0x20, 0x69, 0x73, 0x20, 0x69,
+ 0x6e, 0x61, 0x70, 0x70, 0x72, 0x6f, 0x70, 0x72,
+ 0x69, 0x61, 0x74, 0x65, 0x20, 0x74, 0x6f, 0x20,
+ 0x75, 0x73, 0x65, 0x20, 0x49, 0x6e, 0x74, 0x65,
+ 0x72, 0x6e, 0x65, 0x74, 0x2d, 0x44, 0x72, 0x61,
+ 0x66, 0x74, 0x73, 0x20, 0x61, 0x73, 0x20, 0x72,
+ 0x65, 0x66, 0x65, 0x72, 0x65, 0x6e, 0x63, 0x65,
+ 0x20, 0x6d, 0x61, 0x74, 0x65, 0x72, 0x69, 0x61,
+ 0x6c, 0x20, 0x6f, 0x72, 0x20, 0x74, 0x6f, 0x20,
+ 0x63, 0x69, 0x74, 0x65, 0x20, 0x74, 0x68, 0x65,
+ 0x6d, 0x20, 0x6f, 0x74, 0x68, 0x65, 0x72, 0x20,
+ 0x74, 0x68, 0x61, 0x6e, 0x20, 0x61, 0x73, 0x20,
+ 0x2f, 0xe2, 0x80, 0x9c, 0x77, 0x6f, 0x72, 0x6b,
+ 0x20, 0x69, 0x6e, 0x20, 0x70, 0x72, 0x6f, 0x67,
+ 0x72, 0x65, 0x73, 0x73, 0x2e, 0x2f, 0xe2, 0x80,
+ 0x9d
+};
+static const u8 dec_assoc001[] __initconst = {
+ 0xf3, 0x33, 0x88, 0x86, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x4e, 0x91
+};
+static const u8 dec_nonce001[] __initconst = {
+ 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08
+};
+static const u8 dec_key001[] __initconst = {
+ 0x1c, 0x92, 0x40, 0xa5, 0xeb, 0x55, 0xd3, 0x8a,
+ 0xf3, 0x33, 0x88, 0x86, 0x04, 0xf6, 0xb5, 0xf0,
+ 0x47, 0x39, 0x17, 0xc1, 0x40, 0x2b, 0x80, 0x09,
+ 0x9d, 0xca, 0x5c, 0xbc, 0x20, 0x70, 0x75, 0xc0
+};
+
+static const u8 dec_input002[] __initconst = {
+ 0xea, 0xe0, 0x1e, 0x9e, 0x2c, 0x91, 0xaa, 0xe1,
+ 0xdb, 0x5d, 0x99, 0x3f, 0x8a, 0xf7, 0x69, 0x92
+};
+static const u8 dec_output002[] __initconst = { };
+static const u8 dec_assoc002[] __initconst = { };
+static const u8 dec_nonce002[] __initconst = {
+ 0xca, 0xbf, 0x33, 0x71, 0x32, 0x45, 0x77, 0x8e
+};
+static const u8 dec_key002[] __initconst = {
+ 0x4c, 0xf5, 0x96, 0x83, 0x38, 0xe6, 0xae, 0x7f,
+ 0x2d, 0x29, 0x25, 0x76, 0xd5, 0x75, 0x27, 0x86,
+ 0x91, 0x9a, 0x27, 0x7a, 0xfb, 0x46, 0xc5, 0xef,
+ 0x94, 0x81, 0x79, 0x57, 0x14, 0x59, 0x40, 0x68
+};
+
+static const u8 dec_input003[] __initconst = {
+ 0xdd, 0x6b, 0x3b, 0x82, 0xce, 0x5a, 0xbd, 0xd6,
+ 0xa9, 0x35, 0x83, 0xd8, 0x8c, 0x3d, 0x85, 0x77
+};
+static const u8 dec_output003[] __initconst = { };
+static const u8 dec_assoc003[] __initconst = {
+ 0x33, 0x10, 0x41, 0x12, 0x1f, 0xf3, 0xd2, 0x6b
+};
+static const u8 dec_nonce003[] __initconst = {
+ 0x3d, 0x86, 0xb5, 0x6b, 0xc8, 0xa3, 0x1f, 0x1d
+};
+static const u8 dec_key003[] __initconst = {
+ 0x2d, 0xb0, 0x5d, 0x40, 0xc8, 0xed, 0x44, 0x88,
+ 0x34, 0xd1, 0x13, 0xaf, 0x57, 0xa1, 0xeb, 0x3a,
+ 0x2a, 0x80, 0x51, 0x36, 0xec, 0x5b, 0xbc, 0x08,
+ 0x93, 0x84, 0x21, 0xb5, 0x13, 0x88, 0x3c, 0x0d
+};
+
+static const u8 dec_input004[] __initconst = {
+ 0xb7, 0x1b, 0xb0, 0x73, 0x59, 0xb0, 0x84, 0xb2,
+ 0x6d, 0x8e, 0xab, 0x94, 0x31, 0xa1, 0xae, 0xac,
+ 0x89
+};
+static const u8 dec_output004[] __initconst = {
+ 0xa4
+};
+static const u8 dec_assoc004[] __initconst = {
+ 0x6a, 0xe2, 0xad, 0x3f, 0x88, 0x39, 0x5a, 0x40
+};
+static const u8 dec_nonce004[] __initconst = {
+ 0xd2, 0x32, 0x1f, 0x29, 0x28, 0xc6, 0xc4, 0xc4
+};
+static const u8 dec_key004[] __initconst = {
+ 0x4b, 0x28, 0x4b, 0xa3, 0x7b, 0xbe, 0xe9, 0xf8,
+ 0x31, 0x80, 0x82, 0xd7, 0xd8, 0xe8, 0xb5, 0xa1,
+ 0xe2, 0x18, 0x18, 0x8a, 0x9c, 0xfa, 0xa3, 0x3d,
+ 0x25, 0x71, 0x3e, 0x40, 0xbc, 0x54, 0x7a, 0x3e
+};
+
+static const u8 dec_input005[] __initconst = {
+ 0xbf, 0xe1, 0x5b, 0x0b, 0xdb, 0x6b, 0xf5, 0x5e,
+ 0x6c, 0x5d, 0x84, 0x44, 0x39, 0x81, 0xc1, 0x9c,
+ 0xac
+};
+static const u8 dec_output005[] __initconst = {
+ 0x2d
+};
+static const u8 dec_assoc005[] __initconst = { };
+static const u8 dec_nonce005[] __initconst = {
+ 0x20, 0x1c, 0xaa, 0x5f, 0x9c, 0xbf, 0x92, 0x30
+};
+static const u8 dec_key005[] __initconst = {
+ 0x66, 0xca, 0x9c, 0x23, 0x2a, 0x4b, 0x4b, 0x31,
+ 0x0e, 0x92, 0x89, 0x8b, 0xf4, 0x93, 0xc7, 0x87,
+ 0x98, 0xa3, 0xd8, 0x39, 0xf8, 0xf4, 0xa7, 0x01,
+ 0xc0, 0x2e, 0x0a, 0xa6, 0x7e, 0x5a, 0x78, 0x87
+};
+
+static const u8 dec_input006[] __initconst = {
+ 0x8b, 0x06, 0xd3, 0x31, 0xb0, 0x93, 0x45, 0xb1,
+ 0x75, 0x6e, 0x26, 0xf9, 0x67, 0xbc, 0x90, 0x15,
+ 0x81, 0x2c, 0xb5, 0xf0, 0xc6, 0x2b, 0xc7, 0x8c,
+ 0x56, 0xd1, 0xbf, 0x69, 0x6c, 0x07, 0xa0, 0xda,
+ 0x65, 0x27, 0xc9, 0x90, 0x3d, 0xef, 0x4b, 0x11,
+ 0x0f, 0x19, 0x07, 0xfd, 0x29, 0x92, 0xd9, 0xc8,
+ 0xf7, 0x99, 0x2e, 0x4a, 0xd0, 0xb8, 0x2c, 0xdc,
+ 0x93, 0xf5, 0x9e, 0x33, 0x78, 0xd1, 0x37, 0xc3,
+ 0x66, 0xd7, 0x5e, 0xbc, 0x44, 0xbf, 0x53, 0xa5,
+ 0xbc, 0xc4, 0xcb, 0x7b, 0x3a, 0x8e, 0x7f, 0x02,
+ 0xbd, 0xbb, 0xe7, 0xca, 0xa6, 0x6c, 0x6b, 0x93,
+ 0x21, 0x93, 0x10, 0x61, 0xe7, 0x69, 0xd0, 0x78,
+ 0xf3, 0x07, 0x5a, 0x1a, 0x8f, 0x73, 0xaa, 0xb1,
+ 0x4e, 0xd3, 0xda, 0x4f, 0xf3, 0x32, 0xe1, 0x66,
+ 0x3e, 0x6c, 0xc6, 0x13, 0xba, 0x06, 0x5b, 0xfc,
+ 0x6a, 0xe5, 0x6f, 0x60, 0xfb, 0x07, 0x40, 0xb0,
+ 0x8c, 0x9d, 0x84, 0x43, 0x6b, 0xc1, 0xf7, 0x8d,
+ 0x8d, 0x31, 0xf7, 0x7a, 0x39, 0x4d, 0x8f, 0x9a,
+ 0xeb
+};
+static const u8 dec_output006[] __initconst = {
+ 0x33, 0x2f, 0x94, 0xc1, 0xa4, 0xef, 0xcc, 0x2a,
+ 0x5b, 0xa6, 0xe5, 0x8f, 0x1d, 0x40, 0xf0, 0x92,
+ 0x3c, 0xd9, 0x24, 0x11, 0xa9, 0x71, 0xf9, 0x37,
+ 0x14, 0x99, 0xfa, 0xbe, 0xe6, 0x80, 0xde, 0x50,
+ 0xc9, 0x96, 0xd4, 0xb0, 0xec, 0x9e, 0x17, 0xec,
+ 0xd2, 0x5e, 0x72, 0x99, 0xfc, 0x0a, 0xe1, 0xcb,
+ 0x48, 0xd2, 0x85, 0xdd, 0x2f, 0x90, 0xe0, 0x66,
+ 0x3b, 0xe6, 0x20, 0x74, 0xbe, 0x23, 0x8f, 0xcb,
+ 0xb4, 0xe4, 0xda, 0x48, 0x40, 0xa6, 0xd1, 0x1b,
+ 0xc7, 0x42, 0xce, 0x2f, 0x0c, 0xa6, 0x85, 0x6e,
+ 0x87, 0x37, 0x03, 0xb1, 0x7c, 0x25, 0x96, 0xa3,
+ 0x05, 0xd8, 0xb0, 0xf4, 0xed, 0xea, 0xc2, 0xf0,
+ 0x31, 0x98, 0x6c, 0xd1, 0x14, 0x25, 0xc0, 0xcb,
+ 0x01, 0x74, 0xd0, 0x82, 0xf4, 0x36, 0xf5, 0x41,
+ 0xd5, 0xdc, 0xca, 0xc5, 0xbb, 0x98, 0xfe, 0xfc,
+ 0x69, 0x21, 0x70, 0xd8, 0xa4, 0x4b, 0xc8, 0xde,
+ 0x8f
+};
+static const u8 dec_assoc006[] __initconst = {
+ 0x70, 0xd3, 0x33, 0xf3, 0x8b, 0x18, 0x0b
+};
+static const u8 dec_nonce006[] __initconst = {
+ 0xdf, 0x51, 0x84, 0x82, 0x42, 0x0c, 0x75, 0x9c
+};
+static const u8 dec_key006[] __initconst = {
+ 0x68, 0x7b, 0x8d, 0x8e, 0xe3, 0xc4, 0xdd, 0xae,
+ 0xdf, 0x72, 0x7f, 0x53, 0x72, 0x25, 0x1e, 0x78,
+ 0x91, 0xcb, 0x69, 0x76, 0x1f, 0x49, 0x93, 0xf9,
+ 0x6f, 0x21, 0xcc, 0x39, 0x9c, 0xad, 0xb1, 0x01
+};
+
+static const u8 dec_input007[] __initconst = {
+ 0x85, 0x04, 0xc2, 0xed, 0x8d, 0xfd, 0x97, 0x5c,
+ 0xd2, 0xb7, 0xe2, 0xc1, 0x6b, 0xa3, 0xba, 0xf8,
+ 0xc9, 0x50, 0xc3, 0xc6, 0xa5, 0xe3, 0xa4, 0x7c,
+ 0xc3, 0x23, 0x49, 0x5e, 0xa9, 0xb9, 0x32, 0xeb,
+ 0x8a, 0x7c, 0xca, 0xe5, 0xec, 0xfb, 0x7c, 0xc0,
+ 0xcb, 0x7d, 0xdc, 0x2c, 0x9d, 0x92, 0x55, 0x21,
+ 0x0a, 0xc8, 0x43, 0x63, 0x59, 0x0a, 0x31, 0x70,
+ 0x82, 0x67, 0x41, 0x03, 0xf8, 0xdf, 0xf2, 0xac,
+ 0xa7, 0x02, 0xd4, 0xd5, 0x8a, 0x2d, 0xc8, 0x99,
+ 0x19, 0x66, 0xd0, 0xf6, 0x88, 0x2c, 0x77, 0xd9,
+ 0xd4, 0x0d, 0x6c, 0xbd, 0x98, 0xde, 0xe7, 0x7f,
+ 0xad, 0x7e, 0x8a, 0xfb, 0xe9, 0x4b, 0xe5, 0xf7,
+ 0xe5, 0x50, 0xa0, 0x90, 0x3f, 0xd6, 0x22, 0x53,
+ 0xe3, 0xfe, 0x1b, 0xcc, 0x79, 0x3b, 0xec, 0x12,
+ 0x47, 0x52, 0xa7, 0xd6, 0x04, 0xe3, 0x52, 0xe6,
+ 0x93, 0x90, 0x91, 0x32, 0x73, 0x79, 0xb8, 0xd0,
+ 0x31, 0xde, 0x1f, 0x9f, 0x2f, 0x05, 0x38, 0x54,
+ 0x2f, 0x35, 0x04, 0x39, 0xe0, 0xa7, 0xba, 0xc6,
+ 0x52, 0xf6, 0x37, 0x65, 0x4c, 0x07, 0xa9, 0x7e,
+ 0xb3, 0x21, 0x6f, 0x74, 0x8c, 0xc9, 0xde, 0xdb,
+ 0x65, 0x1b, 0x9b, 0xaa, 0x60, 0xb1, 0x03, 0x30,
+ 0x6b, 0xb2, 0x03, 0xc4, 0x1c, 0x04, 0xf8, 0x0f,
+ 0x64, 0xaf, 0x46, 0xe4, 0x65, 0x99, 0x49, 0xe2,
+ 0xea, 0xce, 0x78, 0x00, 0xd8, 0x8b, 0xd5, 0x2e,
+ 0xcf, 0xfc, 0x40, 0x49, 0xe8, 0x58, 0xdc, 0x34,
+ 0x9c, 0x8c, 0x61, 0xbf, 0x0a, 0x8e, 0xec, 0x39,
+ 0xa9, 0x30, 0x05, 0x5a, 0xd2, 0x56, 0x01, 0xc7,
+ 0xda, 0x8f, 0x4e, 0xbb, 0x43, 0xa3, 0x3a, 0xf9,
+ 0x15, 0x2a, 0xd0, 0xa0, 0x7a, 0x87, 0x34, 0x82,
+ 0xfe, 0x8a, 0xd1, 0x2d, 0x5e, 0xc7, 0xbf, 0x04,
+ 0x53, 0x5f, 0x3b, 0x36, 0xd4, 0x25, 0x5c, 0x34,
+ 0x7a, 0x8d, 0xd5, 0x05, 0xce, 0x72, 0xca, 0xef,
+ 0x7a, 0x4b, 0xbc, 0xb0, 0x10, 0x5c, 0x96, 0x42,
+ 0x3a, 0x00, 0x98, 0xcd, 0x15, 0xe8, 0xb7, 0x53
+};
+static const u8 dec_output007[] __initconst = {
+ 0x9b, 0x18, 0xdb, 0xdd, 0x9a, 0x0f, 0x3e, 0xa5,
+ 0x15, 0x17, 0xde, 0xdf, 0x08, 0x9d, 0x65, 0x0a,
+ 0x67, 0x30, 0x12, 0xe2, 0x34, 0x77, 0x4b, 0xc1,
+ 0xd9, 0xc6, 0x1f, 0xab, 0xc6, 0x18, 0x50, 0x17,
+ 0xa7, 0x9d, 0x3c, 0xa6, 0xc5, 0x35, 0x8c, 0x1c,
+ 0xc0, 0xa1, 0x7c, 0x9f, 0x03, 0x89, 0xca, 0xe1,
+ 0xe6, 0xe9, 0xd4, 0xd3, 0x88, 0xdb, 0xb4, 0x51,
+ 0x9d, 0xec, 0xb4, 0xfc, 0x52, 0xee, 0x6d, 0xf1,
+ 0x75, 0x42, 0xc6, 0xfd, 0xbd, 0x7a, 0x8e, 0x86,
+ 0xfc, 0x44, 0xb3, 0x4f, 0xf3, 0xea, 0x67, 0x5a,
+ 0x41, 0x13, 0xba, 0xb0, 0xdc, 0xe1, 0xd3, 0x2a,
+ 0x7c, 0x22, 0xb3, 0xca, 0xac, 0x6a, 0x37, 0x98,
+ 0x3e, 0x1d, 0x40, 0x97, 0xf7, 0x9b, 0x1d, 0x36,
+ 0x6b, 0xb3, 0x28, 0xbd, 0x60, 0x82, 0x47, 0x34,
+ 0xaa, 0x2f, 0x7d, 0xe9, 0xa8, 0x70, 0x81, 0x57,
+ 0xd4, 0xb9, 0x77, 0x0a, 0x9d, 0x29, 0xa7, 0x84,
+ 0x52, 0x4f, 0xc2, 0x4a, 0x40, 0x3b, 0x3c, 0xd4,
+ 0xc9, 0x2a, 0xdb, 0x4a, 0x53, 0xc4, 0xbe, 0x80,
+ 0xe9, 0x51, 0x7f, 0x8f, 0xc7, 0xa2, 0xce, 0x82,
+ 0x5c, 0x91, 0x1e, 0x74, 0xd9, 0xd0, 0xbd, 0xd5,
+ 0xf3, 0xfd, 0xda, 0x4d, 0x25, 0xb4, 0xbb, 0x2d,
+ 0xac, 0x2f, 0x3d, 0x71, 0x85, 0x7b, 0xcf, 0x3c,
+ 0x7b, 0x3e, 0x0e, 0x22, 0x78, 0x0c, 0x29, 0xbf,
+ 0xe4, 0xf4, 0x57, 0xb3, 0xcb, 0x49, 0xa0, 0xfc,
+ 0x1e, 0x05, 0x4e, 0x16, 0xbc, 0xd5, 0xa8, 0xa3,
+ 0xee, 0x05, 0x35, 0xc6, 0x7c, 0xab, 0x60, 0x14,
+ 0x55, 0x1a, 0x8e, 0xc5, 0x88, 0x5d, 0xd5, 0x81,
+ 0xc2, 0x81, 0xa5, 0xc4, 0x60, 0xdb, 0xaf, 0x77,
+ 0x91, 0xe1, 0xce, 0xa2, 0x7e, 0x7f, 0x42, 0xe3,
+ 0xb0, 0x13, 0x1c, 0x1f, 0x25, 0x60, 0x21, 0xe2,
+ 0x40, 0x5f, 0x99, 0xb7, 0x73, 0xec, 0x9b, 0x2b,
+ 0xf0, 0x65, 0x11, 0xc8, 0xd0, 0x0a, 0x9f, 0xd3
+};
+static const u8 dec_assoc007[] __initconst = { };
+static const u8 dec_nonce007[] __initconst = {
+ 0xde, 0x7b, 0xef, 0xc3, 0x65, 0x1b, 0x68, 0xb0
+};
+static const u8 dec_key007[] __initconst = {
+ 0x8d, 0xb8, 0x91, 0x48, 0xf0, 0xe7, 0x0a, 0xbd,
+ 0xf9, 0x3f, 0xcd, 0xd9, 0xa0, 0x1e, 0x42, 0x4c,
+ 0xe7, 0xde, 0x25, 0x3d, 0xa3, 0xd7, 0x05, 0x80,
+ 0x8d, 0xf2, 0x82, 0xac, 0x44, 0x16, 0x51, 0x01
+};
+
+static const u8 dec_input008[] __initconst = {
+ 0x14, 0xf6, 0x41, 0x37, 0xa6, 0xd4, 0x27, 0xcd,
+ 0xdb, 0x06, 0x3e, 0x9a, 0x4e, 0xab, 0xd5, 0xb1,
+ 0x1e, 0x6b, 0xd2, 0xbc, 0x11, 0xf4, 0x28, 0x93,
+ 0x63, 0x54, 0xef, 0xbb, 0x5e, 0x1d, 0x3a, 0x1d,
+ 0x37, 0x3c, 0x0a, 0x6c, 0x1e, 0xc2, 0xd1, 0x2c,
+ 0xb5, 0xa3, 0xb5, 0x7b, 0xb8, 0x8f, 0x25, 0xa6,
+ 0x1b, 0x61, 0x1c, 0xec, 0x28, 0x58, 0x26, 0xa4,
+ 0xa8, 0x33, 0x28, 0x25, 0x5c, 0x45, 0x05, 0xe5,
+ 0x6c, 0x99, 0xe5, 0x45, 0xc4, 0xa2, 0x03, 0x84,
+ 0x03, 0x73, 0x1e, 0x8c, 0x49, 0xac, 0x20, 0xdd,
+ 0x8d, 0xb3, 0xc4, 0xf5, 0xe7, 0x4f, 0xf1, 0xed,
+ 0xa1, 0x98, 0xde, 0xa4, 0x96, 0xdd, 0x2f, 0xab,
+ 0xab, 0x97, 0xcf, 0x3e, 0xd2, 0x9e, 0xb8, 0x13,
+ 0x07, 0x28, 0x29, 0x19, 0xaf, 0xfd, 0xf2, 0x49,
+ 0x43, 0xea, 0x49, 0x26, 0x91, 0xc1, 0x07, 0xd6,
+ 0xbb, 0x81, 0x75, 0x35, 0x0d, 0x24, 0x7f, 0xc8,
+ 0xda, 0xd4, 0xb7, 0xeb, 0xe8, 0x5c, 0x09, 0xa2,
+ 0x2f, 0xdc, 0x28, 0x7d, 0x3a, 0x03, 0xfa, 0x94,
+ 0xb5, 0x1d, 0x17, 0x99, 0x36, 0xc3, 0x1c, 0x18,
+ 0x34, 0xe3, 0x9f, 0xf5, 0x55, 0x7c, 0xb0, 0x60,
+ 0x9d, 0xff, 0xac, 0xd4, 0x61, 0xf2, 0xad, 0xf8,
+ 0xce, 0xc7, 0xbe, 0x5c, 0xd2, 0x95, 0xa8, 0x4b,
+ 0x77, 0x13, 0x19, 0x59, 0x26, 0xc9, 0xb7, 0x8f,
+ 0x6a, 0xcb, 0x2d, 0x37, 0x91, 0xea, 0x92, 0x9c,
+ 0x94, 0x5b, 0xda, 0x0b, 0xce, 0xfe, 0x30, 0x20,
+ 0xf8, 0x51, 0xad, 0xf2, 0xbe, 0xe7, 0xc7, 0xff,
+ 0xb3, 0x33, 0x91, 0x6a, 0xc9, 0x1a, 0x41, 0xc9,
+ 0x0f, 0xf3, 0x10, 0x0e, 0xfd, 0x53, 0xff, 0x6c,
+ 0x16, 0x52, 0xd9, 0xf3, 0xf7, 0x98, 0x2e, 0xc9,
+ 0x07, 0x31, 0x2c, 0x0c, 0x72, 0xd7, 0xc5, 0xc6,
+ 0x08, 0x2a, 0x7b, 0xda, 0xbd, 0x7e, 0x02, 0xea,
+ 0x1a, 0xbb, 0xf2, 0x04, 0x27, 0x61, 0x28, 0x8e,
+ 0xf5, 0x04, 0x03, 0x1f, 0x4c, 0x07, 0x55, 0x82,
+ 0xec, 0x1e, 0xd7, 0x8b, 0x2f, 0x65, 0x56, 0xd1,
+ 0xd9, 0x1e, 0x3c, 0xe9, 0x1f, 0x5e, 0x98, 0x70,
+ 0x38, 0x4a, 0x8c, 0x49, 0xc5, 0x43, 0xa0, 0xa1,
+ 0x8b, 0x74, 0x9d, 0x4c, 0x62, 0x0d, 0x10, 0x0c,
+ 0xf4, 0x6c, 0x8f, 0xe0, 0xaa, 0x9a, 0x8d, 0xb7,
+ 0xe0, 0xbe, 0x4c, 0x87, 0xf1, 0x98, 0x2f, 0xcc,
+ 0xed, 0xc0, 0x52, 0x29, 0xdc, 0x83, 0xf8, 0xfc,
+ 0x2c, 0x0e, 0xa8, 0x51, 0x4d, 0x80, 0x0d, 0xa3,
+ 0xfe, 0xd8, 0x37, 0xe7, 0x41, 0x24, 0xfc, 0xfb,
+ 0x75, 0xe3, 0x71, 0x7b, 0x57, 0x45, 0xf5, 0x97,
+ 0x73, 0x65, 0x63, 0x14, 0x74, 0xb8, 0x82, 0x9f,
+ 0xf8, 0x60, 0x2f, 0x8a, 0xf2, 0x4e, 0xf1, 0x39,
+ 0xda, 0x33, 0x91, 0xf8, 0x36, 0xe0, 0x8d, 0x3f,
+ 0x1f, 0x3b, 0x56, 0xdc, 0xa0, 0x8f, 0x3c, 0x9d,
+ 0x71, 0x52, 0xa7, 0xb8, 0xc0, 0xa5, 0xc6, 0xa2,
+ 0x73, 0xda, 0xf4, 0x4b, 0x74, 0x5b, 0x00, 0x3d,
+ 0x99, 0xd7, 0x96, 0xba, 0xe6, 0xe1, 0xa6, 0x96,
+ 0x38, 0xad, 0xb3, 0xc0, 0xd2, 0xba, 0x91, 0x6b,
+ 0xf9, 0x19, 0xdd, 0x3b, 0xbe, 0xbe, 0x9c, 0x20,
+ 0x50, 0xba, 0xa1, 0xd0, 0xce, 0x11, 0xbd, 0x95,
+ 0xd8, 0xd1, 0xdd, 0x33, 0x85, 0x74, 0xdc, 0xdb,
+ 0x66, 0x76, 0x44, 0xdc, 0x03, 0x74, 0x48, 0x35,
+ 0x98, 0xb1, 0x18, 0x47, 0x94, 0x7d, 0xff, 0x62,
+ 0xe4, 0x58, 0x78, 0xab, 0xed, 0x95, 0x36, 0xd9,
+ 0x84, 0x91, 0x82, 0x64, 0x41, 0xbb, 0x58, 0xe6,
+ 0x1c, 0x20, 0x6d, 0x15, 0x6b, 0x13, 0x96, 0xe8,
+ 0x35, 0x7f, 0xdc, 0x40, 0x2c, 0xe9, 0xbc, 0x8a,
+ 0x4f, 0x92, 0xec, 0x06, 0x2d, 0x50, 0xdf, 0x93,
+ 0x5d, 0x65, 0x5a, 0xa8, 0xfc, 0x20, 0x50, 0x14,
+ 0xa9, 0x8a, 0x7e, 0x1d, 0x08, 0x1f, 0xe2, 0x99,
+ 0xd0, 0xbe, 0xfb, 0x3a, 0x21, 0x9d, 0xad, 0x86,
+ 0x54, 0xfd, 0x0d, 0x98, 0x1c, 0x5a, 0x6f, 0x1f,
+ 0x9a, 0x40, 0xcd, 0xa2, 0xff, 0x6a, 0xf1, 0x54
+};
+static const u8 dec_output008[] __initconst = {
+ 0xc3, 0x09, 0x94, 0x62, 0xe6, 0x46, 0x2e, 0x10,
+ 0xbe, 0x00, 0xe4, 0xfc, 0xf3, 0x40, 0xa3, 0xe2,
+ 0x0f, 0xc2, 0x8b, 0x28, 0xdc, 0xba, 0xb4, 0x3c,
+ 0xe4, 0x21, 0x58, 0x61, 0xcd, 0x8b, 0xcd, 0xfb,
+ 0xac, 0x94, 0xa1, 0x45, 0xf5, 0x1c, 0xe1, 0x12,
+ 0xe0, 0x3b, 0x67, 0x21, 0x54, 0x5e, 0x8c, 0xaa,
+ 0xcf, 0xdb, 0xb4, 0x51, 0xd4, 0x13, 0xda, 0xe6,
+ 0x83, 0x89, 0xb6, 0x92, 0xe9, 0x21, 0x76, 0xa4,
+ 0x93, 0x7d, 0x0e, 0xfd, 0x96, 0x36, 0x03, 0x91,
+ 0x43, 0x5c, 0x92, 0x49, 0x62, 0x61, 0x7b, 0xeb,
+ 0x43, 0x89, 0xb8, 0x12, 0x20, 0x43, 0xd4, 0x47,
+ 0x06, 0x84, 0xee, 0x47, 0xe9, 0x8a, 0x73, 0x15,
+ 0x0f, 0x72, 0xcf, 0xed, 0xce, 0x96, 0xb2, 0x7f,
+ 0x21, 0x45, 0x76, 0xeb, 0x26, 0x28, 0x83, 0x6a,
+ 0xad, 0xaa, 0xa6, 0x81, 0xd8, 0x55, 0xb1, 0xa3,
+ 0x85, 0xb3, 0x0c, 0xdf, 0xf1, 0x69, 0x2d, 0x97,
+ 0x05, 0x2a, 0xbc, 0x7c, 0x7b, 0x25, 0xf8, 0x80,
+ 0x9d, 0x39, 0x25, 0xf3, 0x62, 0xf0, 0x66, 0x5e,
+ 0xf4, 0xa0, 0xcf, 0xd8, 0xfd, 0x4f, 0xb1, 0x1f,
+ 0x60, 0x3a, 0x08, 0x47, 0xaf, 0xe1, 0xf6, 0x10,
+ 0x77, 0x09, 0xa7, 0x27, 0x8f, 0x9a, 0x97, 0x5a,
+ 0x26, 0xfa, 0xfe, 0x41, 0x32, 0x83, 0x10, 0xe0,
+ 0x1d, 0xbf, 0x64, 0x0d, 0xf4, 0x1c, 0x32, 0x35,
+ 0xe5, 0x1b, 0x36, 0xef, 0xd4, 0x4a, 0x93, 0x4d,
+ 0x00, 0x7c, 0xec, 0x02, 0x07, 0x8b, 0x5d, 0x7d,
+ 0x1b, 0x0e, 0xd1, 0xa6, 0xa5, 0x5d, 0x7d, 0x57,
+ 0x88, 0xa8, 0xcc, 0x81, 0xb4, 0x86, 0x4e, 0xb4,
+ 0x40, 0xe9, 0x1d, 0xc3, 0xb1, 0x24, 0x3e, 0x7f,
+ 0xcc, 0x8a, 0x24, 0x9b, 0xdf, 0x6d, 0xf0, 0x39,
+ 0x69, 0x3e, 0x4c, 0xc0, 0x96, 0xe4, 0x13, 0xda,
+ 0x90, 0xda, 0xf4, 0x95, 0x66, 0x8b, 0x17, 0x17,
+ 0xfe, 0x39, 0x43, 0x25, 0xaa, 0xda, 0xa0, 0x43,
+ 0x3c, 0xb1, 0x41, 0x02, 0xa3, 0xf0, 0xa7, 0x19,
+ 0x59, 0xbc, 0x1d, 0x7d, 0x6c, 0x6d, 0x91, 0x09,
+ 0x5c, 0xb7, 0x5b, 0x01, 0xd1, 0x6f, 0x17, 0x21,
+ 0x97, 0xbf, 0x89, 0x71, 0xa5, 0xb0, 0x6e, 0x07,
+ 0x45, 0xfd, 0x9d, 0xea, 0x07, 0xf6, 0x7a, 0x9f,
+ 0x10, 0x18, 0x22, 0x30, 0x73, 0xac, 0xd4, 0x6b,
+ 0x72, 0x44, 0xed, 0xd9, 0x19, 0x9b, 0x2d, 0x4a,
+ 0x41, 0xdd, 0xd1, 0x85, 0x5e, 0x37, 0x19, 0xed,
+ 0xd2, 0x15, 0x8f, 0x5e, 0x91, 0xdb, 0x33, 0xf2,
+ 0xe4, 0xdb, 0xff, 0x98, 0xfb, 0xa3, 0xb5, 0xca,
+ 0x21, 0x69, 0x08, 0xe7, 0x8a, 0xdf, 0x90, 0xff,
+ 0x3e, 0xe9, 0x20, 0x86, 0x3c, 0xe9, 0xfc, 0x0b,
+ 0xfe, 0x5c, 0x61, 0xaa, 0x13, 0x92, 0x7f, 0x7b,
+ 0xec, 0xe0, 0x6d, 0xa8, 0x23, 0x22, 0xf6, 0x6b,
+ 0x77, 0xc4, 0xfe, 0x40, 0x07, 0x3b, 0xb6, 0xf6,
+ 0x8e, 0x5f, 0xd4, 0xb9, 0xb7, 0x0f, 0x21, 0x04,
+ 0xef, 0x83, 0x63, 0x91, 0x69, 0x40, 0xa3, 0x48,
+ 0x5c, 0xd2, 0x60, 0xf9, 0x4f, 0x6c, 0x47, 0x8b,
+ 0x3b, 0xb1, 0x9f, 0x8e, 0xee, 0x16, 0x8a, 0x13,
+ 0xfc, 0x46, 0x17, 0xc3, 0xc3, 0x32, 0x56, 0xf8,
+ 0x3c, 0x85, 0x3a, 0xb6, 0x3e, 0xaa, 0x89, 0x4f,
+ 0xb3, 0xdf, 0x38, 0xfd, 0xf1, 0xe4, 0x3a, 0xc0,
+ 0xe6, 0x58, 0xb5, 0x8f, 0xc5, 0x29, 0xa2, 0x92,
+ 0x4a, 0xb6, 0xa0, 0x34, 0x7f, 0xab, 0xb5, 0x8a,
+ 0x90, 0xa1, 0xdb, 0x4d, 0xca, 0xb6, 0x2c, 0x41,
+ 0x3c, 0xf7, 0x2b, 0x21, 0xc3, 0xfd, 0xf4, 0x17,
+ 0x5c, 0xb5, 0x33, 0x17, 0x68, 0x2b, 0x08, 0x30,
+ 0xf3, 0xf7, 0x30, 0x3c, 0x96, 0xe6, 0x6a, 0x20,
+ 0x97, 0xe7, 0x4d, 0x10, 0x5f, 0x47, 0x5f, 0x49,
+ 0x96, 0x09, 0xf0, 0x27, 0x91, 0xc8, 0xf8, 0x5a,
+ 0x2e, 0x79, 0xb5, 0xe2, 0xb8, 0xe8, 0xb9, 0x7b,
+ 0xd5, 0x10, 0xcb, 0xff, 0x5d, 0x14, 0x73, 0xf3
+};
+static const u8 dec_assoc008[] __initconst = { };
+static const u8 dec_nonce008[] __initconst = {
+ 0x0e, 0x0d, 0x57, 0xbb, 0x7b, 0x40, 0x54, 0x02
+};
+static const u8 dec_key008[] __initconst = {
+ 0xf2, 0xaa, 0x4f, 0x99, 0xfd, 0x3e, 0xa8, 0x53,
+ 0xc1, 0x44, 0xe9, 0x81, 0x18, 0xdc, 0xf5, 0xf0,
+ 0x3e, 0x44, 0x15, 0x59, 0xe0, 0xc5, 0x44, 0x86,
+ 0xc3, 0x91, 0xa8, 0x75, 0xc0, 0x12, 0x46, 0xba
+};
+
+static const u8 dec_input009[] __initconst = {
+ 0xfd, 0x81, 0x8d, 0xd0, 0x3d, 0xb4, 0xd5, 0xdf,
+ 0xd3, 0x42, 0x47, 0x5a, 0x6d, 0x19, 0x27, 0x66,
+ 0x4b, 0x2e, 0x0c, 0x27, 0x9c, 0x96, 0x4c, 0x72,
+ 0x02, 0xa3, 0x65, 0xc3, 0xb3, 0x6f, 0x2e, 0xbd,
+ 0x63, 0x8a, 0x4a, 0x5d, 0x29, 0xa2, 0xd0, 0x28,
+ 0x48, 0xc5, 0x3d, 0x98, 0xa3, 0xbc, 0xe0, 0xbe,
+ 0x3b, 0x3f, 0xe6, 0x8a, 0xa4, 0x7f, 0x53, 0x06,
+ 0xfa, 0x7f, 0x27, 0x76, 0x72, 0x31, 0xa1, 0xf5,
+ 0xd6, 0x0c, 0x52, 0x47, 0xba, 0xcd, 0x4f, 0xd7,
+ 0xeb, 0x05, 0x48, 0x0d, 0x7c, 0x35, 0x4a, 0x09,
+ 0xc9, 0x76, 0x71, 0x02, 0xa3, 0xfb, 0xb7, 0x1a,
+ 0x65, 0xb7, 0xed, 0x98, 0xc6, 0x30, 0x8a, 0x00,
+ 0xae, 0xa1, 0x31, 0xe5, 0xb5, 0x9e, 0x6d, 0x62,
+ 0xda, 0xda, 0x07, 0x0f, 0x38, 0x38, 0xd3, 0xcb,
+ 0xc1, 0xb0, 0xad, 0xec, 0x72, 0xec, 0xb1, 0xa2,
+ 0x7b, 0x59, 0xf3, 0x3d, 0x2b, 0xef, 0xcd, 0x28,
+ 0x5b, 0x83, 0xcc, 0x18, 0x91, 0x88, 0xb0, 0x2e,
+ 0xf9, 0x29, 0x31, 0x18, 0xf9, 0x4e, 0xe9, 0x0a,
+ 0x91, 0x92, 0x9f, 0xae, 0x2d, 0xad, 0xf4, 0xe6,
+ 0x1a, 0xe2, 0xa4, 0xee, 0x47, 0x15, 0xbf, 0x83,
+ 0x6e, 0xd7, 0x72, 0x12, 0x3b, 0x2d, 0x24, 0xe9,
+ 0xb2, 0x55, 0xcb, 0x3c, 0x10, 0xf0, 0x24, 0x8a,
+ 0x4a, 0x02, 0xea, 0x90, 0x25, 0xf0, 0xb4, 0x79,
+ 0x3a, 0xef, 0x6e, 0xf5, 0x52, 0xdf, 0xb0, 0x0a,
+ 0xcd, 0x24, 0x1c, 0xd3, 0x2e, 0x22, 0x74, 0xea,
+ 0x21, 0x6f, 0xe9, 0xbd, 0xc8, 0x3e, 0x36, 0x5b,
+ 0x19, 0xf1, 0xca, 0x99, 0x0a, 0xb4, 0xa7, 0x52,
+ 0x1a, 0x4e, 0xf2, 0xad, 0x8d, 0x56, 0x85, 0xbb,
+ 0x64, 0x89, 0xba, 0x26, 0xf9, 0xc7, 0xe1, 0x89,
+ 0x19, 0x22, 0x77, 0xc3, 0xa8, 0xfc, 0xff, 0xad,
+ 0xfe, 0xb9, 0x48, 0xae, 0x12, 0x30, 0x9f, 0x19,
+ 0xfb, 0x1b, 0xef, 0x14, 0x87, 0x8a, 0x78, 0x71,
+ 0xf3, 0xf4, 0xb7, 0x00, 0x9c, 0x1d, 0xb5, 0x3d,
+ 0x49, 0x00, 0x0c, 0x06, 0xd4, 0x50, 0xf9, 0x54,
+ 0x45, 0xb2, 0x5b, 0x43, 0xdb, 0x6d, 0xcf, 0x1a,
+ 0xe9, 0x7a, 0x7a, 0xcf, 0xfc, 0x8a, 0x4e, 0x4d,
+ 0x0b, 0x07, 0x63, 0x28, 0xd8, 0xe7, 0x08, 0x95,
+ 0xdf, 0xa6, 0x72, 0x93, 0x2e, 0xbb, 0xa0, 0x42,
+ 0x89, 0x16, 0xf1, 0xd9, 0x0c, 0xf9, 0xa1, 0x16,
+ 0xfd, 0xd9, 0x03, 0xb4, 0x3b, 0x8a, 0xf5, 0xf6,
+ 0xe7, 0x6b, 0x2e, 0x8e, 0x4c, 0x3d, 0xe2, 0xaf,
+ 0x08, 0x45, 0x03, 0xff, 0x09, 0xb6, 0xeb, 0x2d,
+ 0xc6, 0x1b, 0x88, 0x94, 0xac, 0x3e, 0xf1, 0x9f,
+ 0x0e, 0x0e, 0x2b, 0xd5, 0x00, 0x4d, 0x3f, 0x3b,
+ 0x53, 0xae, 0xaf, 0x1c, 0x33, 0x5f, 0x55, 0x6e,
+ 0x8d, 0xaf, 0x05, 0x7a, 0x10, 0x34, 0xc9, 0xf4,
+ 0x66, 0xcb, 0x62, 0x12, 0xa6, 0xee, 0xe8, 0x1c,
+ 0x5d, 0x12, 0x86, 0xdb, 0x6f, 0x1c, 0x33, 0xc4,
+ 0x1c, 0xda, 0x82, 0x2d, 0x3b, 0x59, 0xfe, 0xb1,
+ 0xa4, 0x59, 0x41, 0x86, 0xd0, 0xef, 0xae, 0xfb,
+ 0xda, 0x6d, 0x11, 0xb8, 0xca, 0xe9, 0x6e, 0xff,
+ 0xf7, 0xa9, 0xd9, 0x70, 0x30, 0xfc, 0x53, 0xe2,
+ 0xd7, 0xa2, 0x4e, 0xc7, 0x91, 0xd9, 0x07, 0x06,
+ 0xaa, 0xdd, 0xb0, 0x59, 0x28, 0x1d, 0x00, 0x66,
+ 0xc5, 0x54, 0xc2, 0xfc, 0x06, 0xda, 0x05, 0x90,
+ 0x52, 0x1d, 0x37, 0x66, 0xee, 0xf0, 0xb2, 0x55,
+ 0x8a, 0x5d, 0xd2, 0x38, 0x86, 0x94, 0x9b, 0xfc,
+ 0x10, 0x4c, 0xa1, 0xb9, 0x64, 0x3e, 0x44, 0xb8,
+ 0x5f, 0xb0, 0x0c, 0xec, 0xe0, 0xc9, 0xe5, 0x62,
+ 0x75, 0x3f, 0x09, 0xd5, 0xf5, 0xd9, 0x26, 0xba,
+ 0x9e, 0xd2, 0xf4, 0xb9, 0x48, 0x0a, 0xbc, 0xa2,
+ 0xd6, 0x7c, 0x36, 0x11, 0x7d, 0x26, 0x81, 0x89,
+ 0xcf, 0xa4, 0xad, 0x73, 0x0e, 0xee, 0xcc, 0x06,
+ 0xa9, 0xdb, 0xb1, 0xfd, 0xfb, 0x09, 0x7f, 0x90,
+ 0x42, 0x37, 0x2f, 0xe1, 0x9c, 0x0f, 0x6f, 0xcf,
+ 0x43, 0xb5, 0xd9, 0x90, 0xe1, 0x85, 0xf5, 0xa8,
+ 0xae
+};
+static const u8 dec_output009[] __initconst = {
+ 0xe6, 0xc3, 0xdb, 0x63, 0x55, 0x15, 0xe3, 0x5b,
+ 0xb7, 0x4b, 0x27, 0x8b, 0x5a, 0xdd, 0xc2, 0xe8,
+ 0x3a, 0x6b, 0xd7, 0x81, 0x96, 0x35, 0x97, 0xca,
+ 0xd7, 0x68, 0xe8, 0xef, 0xce, 0xab, 0xda, 0x09,
+ 0x6e, 0xd6, 0x8e, 0xcb, 0x55, 0xb5, 0xe1, 0xe5,
+ 0x57, 0xfd, 0xc4, 0xe3, 0xe0, 0x18, 0x4f, 0x85,
+ 0xf5, 0x3f, 0x7e, 0x4b, 0x88, 0xc9, 0x52, 0x44,
+ 0x0f, 0xea, 0xaf, 0x1f, 0x71, 0x48, 0x9f, 0x97,
+ 0x6d, 0xb9, 0x6f, 0x00, 0xa6, 0xde, 0x2b, 0x77,
+ 0x8b, 0x15, 0xad, 0x10, 0xa0, 0x2b, 0x7b, 0x41,
+ 0x90, 0x03, 0x2d, 0x69, 0xae, 0xcc, 0x77, 0x7c,
+ 0xa5, 0x9d, 0x29, 0x22, 0xc2, 0xea, 0xb4, 0x00,
+ 0x1a, 0xd2, 0x7a, 0x98, 0x8a, 0xf9, 0xf7, 0x82,
+ 0xb0, 0xab, 0xd8, 0xa6, 0x94, 0x8d, 0x58, 0x2f,
+ 0x01, 0x9e, 0x00, 0x20, 0xfc, 0x49, 0xdc, 0x0e,
+ 0x03, 0xe8, 0x45, 0x10, 0xd6, 0xa8, 0xda, 0x55,
+ 0x10, 0x9a, 0xdf, 0x67, 0x22, 0x8b, 0x43, 0xab,
+ 0x00, 0xbb, 0x02, 0xc8, 0xdd, 0x7b, 0x97, 0x17,
+ 0xd7, 0x1d, 0x9e, 0x02, 0x5e, 0x48, 0xde, 0x8e,
+ 0xcf, 0x99, 0x07, 0x95, 0x92, 0x3c, 0x5f, 0x9f,
+ 0xc5, 0x8a, 0xc0, 0x23, 0xaa, 0xd5, 0x8c, 0x82,
+ 0x6e, 0x16, 0x92, 0xb1, 0x12, 0x17, 0x07, 0xc3,
+ 0xfb, 0x36, 0xf5, 0x6c, 0x35, 0xd6, 0x06, 0x1f,
+ 0x9f, 0xa7, 0x94, 0xa2, 0x38, 0x63, 0x9c, 0xb0,
+ 0x71, 0xb3, 0xa5, 0xd2, 0xd8, 0xba, 0x9f, 0x08,
+ 0x01, 0xb3, 0xff, 0x04, 0x97, 0x73, 0x45, 0x1b,
+ 0xd5, 0xa9, 0x9c, 0x80, 0xaf, 0x04, 0x9a, 0x85,
+ 0xdb, 0x32, 0x5b, 0x5d, 0x1a, 0xc1, 0x36, 0x28,
+ 0x10, 0x79, 0xf1, 0x3c, 0xbf, 0x1a, 0x41, 0x5c,
+ 0x4e, 0xdf, 0xb2, 0x7c, 0x79, 0x3b, 0x7a, 0x62,
+ 0x3d, 0x4b, 0xc9, 0x9b, 0x2a, 0x2e, 0x7c, 0xa2,
+ 0xb1, 0x11, 0x98, 0xa7, 0x34, 0x1a, 0x00, 0xf3,
+ 0xd1, 0xbc, 0x18, 0x22, 0xba, 0x02, 0x56, 0x62,
+ 0x31, 0x10, 0x11, 0x6d, 0xe0, 0x54, 0x9d, 0x40,
+ 0x1f, 0x26, 0x80, 0x41, 0xca, 0x3f, 0x68, 0x0f,
+ 0x32, 0x1d, 0x0a, 0x8e, 0x79, 0xd8, 0xa4, 0x1b,
+ 0x29, 0x1c, 0x90, 0x8e, 0xc5, 0xe3, 0xb4, 0x91,
+ 0x37, 0x9a, 0x97, 0x86, 0x99, 0xd5, 0x09, 0xc5,
+ 0xbb, 0xa3, 0x3f, 0x21, 0x29, 0x82, 0x14, 0x5c,
+ 0xab, 0x25, 0xfb, 0xf2, 0x4f, 0x58, 0x26, 0xd4,
+ 0x83, 0xaa, 0x66, 0x89, 0x67, 0x7e, 0xc0, 0x49,
+ 0xe1, 0x11, 0x10, 0x7f, 0x7a, 0xda, 0x29, 0x04,
+ 0xff, 0xf0, 0xcb, 0x09, 0x7c, 0x9d, 0xfa, 0x03,
+ 0x6f, 0x81, 0x09, 0x31, 0x60, 0xfb, 0x08, 0xfa,
+ 0x74, 0xd3, 0x64, 0x44, 0x7c, 0x55, 0x85, 0xec,
+ 0x9c, 0x6e, 0x25, 0xb7, 0x6c, 0xc5, 0x37, 0xb6,
+ 0x83, 0x87, 0x72, 0x95, 0x8b, 0x9d, 0xe1, 0x69,
+ 0x5c, 0x31, 0x95, 0x42, 0xa6, 0x2c, 0xd1, 0x36,
+ 0x47, 0x1f, 0xec, 0x54, 0xab, 0xa2, 0x1c, 0xd8,
+ 0x00, 0xcc, 0xbc, 0x0d, 0x65, 0xe2, 0x67, 0xbf,
+ 0xbc, 0xea, 0xee, 0x9e, 0xe4, 0x36, 0x95, 0xbe,
+ 0x73, 0xd9, 0xa6, 0xd9, 0x0f, 0xa0, 0xcc, 0x82,
+ 0x76, 0x26, 0xad, 0x5b, 0x58, 0x6c, 0x4e, 0xab,
+ 0x29, 0x64, 0xd3, 0xd9, 0xa9, 0x08, 0x8c, 0x1d,
+ 0xa1, 0x4f, 0x80, 0xd8, 0x3f, 0x94, 0xfb, 0xd3,
+ 0x7b, 0xfc, 0xd1, 0x2b, 0xc3, 0x21, 0xeb, 0xe5,
+ 0x1c, 0x84, 0x23, 0x7f, 0x4b, 0xfa, 0xdb, 0x34,
+ 0x18, 0xa2, 0xc2, 0xe5, 0x13, 0xfe, 0x6c, 0x49,
+ 0x81, 0xd2, 0x73, 0xe7, 0xe2, 0xd7, 0xe4, 0x4f,
+ 0x4b, 0x08, 0x6e, 0xb1, 0x12, 0x22, 0x10, 0x9d,
+ 0xac, 0x51, 0x1e, 0x17, 0xd9, 0x8a, 0x0b, 0x42,
+ 0x88, 0x16, 0x81, 0x37, 0x7c, 0x6a, 0xf7, 0xef,
+ 0x2d, 0xe3, 0xd9, 0xf8, 0x5f, 0xe0, 0x53, 0x27,
+ 0x74, 0xb9, 0xe2, 0xd6, 0x1c, 0x80, 0x2c, 0x52,
+ 0x65
+};
+static const u8 dec_assoc009[] __initconst = {
+ 0x5a, 0x27, 0xff, 0xeb, 0xdf, 0x84, 0xb2, 0x9e,
+ 0xef
+};
+static const u8 dec_nonce009[] __initconst = {
+ 0xef, 0x2d, 0x63, 0xee, 0x6b, 0x80, 0x8b, 0x78
+};
+static const u8 dec_key009[] __initconst = {
+ 0xea, 0xbc, 0x56, 0x99, 0xe3, 0x50, 0xff, 0xc5,
+ 0xcc, 0x1a, 0xd7, 0xc1, 0x57, 0x72, 0xea, 0x86,
+ 0x5b, 0x89, 0x88, 0x61, 0x3d, 0x2f, 0x9b, 0xb2,
+ 0xe7, 0x9c, 0xec, 0x74, 0x6e, 0x3e, 0xf4, 0x3b
+};
+
+static const u8 dec_input010[] __initconst = {
+ 0xe5, 0x26, 0xa4, 0x3d, 0xbd, 0x33, 0xd0, 0x4b,
+ 0x6f, 0x05, 0xa7, 0x6e, 0x12, 0x7a, 0xd2, 0x74,
+ 0xa6, 0xdd, 0xbd, 0x95, 0xeb, 0xf9, 0xa4, 0xf1,
+ 0x59, 0x93, 0x91, 0x70, 0xd9, 0xfe, 0x9a, 0xcd,
+ 0x53, 0x1f, 0x3a, 0xab, 0xa6, 0x7c, 0x9f, 0xa6,
+ 0x9e, 0xbd, 0x99, 0xd9, 0xb5, 0x97, 0x44, 0xd5,
+ 0x14, 0x48, 0x4d, 0x9d, 0xc0, 0xd0, 0x05, 0x96,
+ 0xeb, 0x4c, 0x78, 0x55, 0x09, 0x08, 0x01, 0x02,
+ 0x30, 0x90, 0x7b, 0x96, 0x7a, 0x7b, 0x5f, 0x30,
+ 0x41, 0x24, 0xce, 0x68, 0x61, 0x49, 0x86, 0x57,
+ 0x82, 0xdd, 0x53, 0x1c, 0x51, 0x28, 0x2b, 0x53,
+ 0x6e, 0x2d, 0xc2, 0x20, 0x4c, 0xdd, 0x8f, 0x65,
+ 0x10, 0x20, 0x50, 0xdd, 0x9d, 0x50, 0xe5, 0x71,
+ 0x40, 0x53, 0x69, 0xfc, 0x77, 0x48, 0x11, 0xb9,
+ 0xde, 0xa4, 0x8d, 0x58, 0xe4, 0xa6, 0x1a, 0x18,
+ 0x47, 0x81, 0x7e, 0xfc, 0xdd, 0xf6, 0xef, 0xce,
+ 0x2f, 0x43, 0x68, 0xd6, 0x06, 0xe2, 0x74, 0x6a,
+ 0xad, 0x90, 0xf5, 0x37, 0xf3, 0x3d, 0x82, 0x69,
+ 0x40, 0xe9, 0x6b, 0xa7, 0x3d, 0xa8, 0x1e, 0xd2,
+ 0x02, 0x7c, 0xb7, 0x9b, 0xe4, 0xda, 0x8f, 0x95,
+ 0x06, 0xc5, 0xdf, 0x73, 0xa3, 0x20, 0x9a, 0x49,
+ 0xde, 0x9c, 0xbc, 0xee, 0x14, 0x3f, 0x81, 0x5e,
+ 0xf8, 0x3b, 0x59, 0x3c, 0xe1, 0x68, 0x12, 0x5a,
+ 0x3a, 0x76, 0x3a, 0x3f, 0xf7, 0x87, 0x33, 0x0a,
+ 0x01, 0xb8, 0xd4, 0xed, 0xb6, 0xbe, 0x94, 0x5e,
+ 0x70, 0x40, 0x56, 0x67, 0x1f, 0x50, 0x44, 0x19,
+ 0xce, 0x82, 0x70, 0x10, 0x87, 0x13, 0x20, 0x0b,
+ 0x4c, 0x5a, 0xb6, 0xf6, 0xa7, 0xae, 0x81, 0x75,
+ 0x01, 0x81, 0xe6, 0x4b, 0x57, 0x7c, 0xdd, 0x6d,
+ 0xf8, 0x1c, 0x29, 0x32, 0xf7, 0xda, 0x3c, 0x2d,
+ 0xf8, 0x9b, 0x25, 0x6e, 0x00, 0xb4, 0xf7, 0x2f,
+ 0xf7, 0x04, 0xf7, 0xa1, 0x56, 0xac, 0x4f, 0x1a,
+ 0x64, 0xb8, 0x47, 0x55, 0x18, 0x7b, 0x07, 0x4d,
+ 0xbd, 0x47, 0x24, 0x80, 0x5d, 0xa2, 0x70, 0xc5,
+ 0xdd, 0x8e, 0x82, 0xd4, 0xeb, 0xec, 0xb2, 0x0c,
+ 0x39, 0xd2, 0x97, 0xc1, 0xcb, 0xeb, 0xf4, 0x77,
+ 0x59, 0xb4, 0x87, 0xef, 0xcb, 0x43, 0x2d, 0x46,
+ 0x54, 0xd1, 0xa7, 0xd7, 0x15, 0x99, 0x0a, 0x43,
+ 0xa1, 0xe0, 0x99, 0x33, 0x71, 0xc1, 0xed, 0xfe,
+ 0x72, 0x46, 0x33, 0x8e, 0x91, 0x08, 0x9f, 0xc8,
+ 0x2e, 0xca, 0xfa, 0xdc, 0x59, 0xd5, 0xc3, 0x76,
+ 0x84, 0x9f, 0xa3, 0x37, 0x68, 0xc3, 0xf0, 0x47,
+ 0x2c, 0x68, 0xdb, 0x5e, 0xc3, 0x49, 0x4c, 0xe8,
+ 0x92, 0x85, 0xe2, 0x23, 0xd3, 0x3f, 0xad, 0x32,
+ 0xe5, 0x2b, 0x82, 0xd7, 0x8f, 0x99, 0x0a, 0x59,
+ 0x5c, 0x45, 0xd9, 0xb4, 0x51, 0x52, 0xc2, 0xae,
+ 0xbf, 0x80, 0xcf, 0xc9, 0xc9, 0x51, 0x24, 0x2a,
+ 0x3b, 0x3a, 0x4d, 0xae, 0xeb, 0xbd, 0x22, 0xc3,
+ 0x0e, 0x0f, 0x59, 0x25, 0x92, 0x17, 0xe9, 0x74,
+ 0xc7, 0x8b, 0x70, 0x70, 0x36, 0x55, 0x95, 0x75,
+ 0x4b, 0xad, 0x61, 0x2b, 0x09, 0xbc, 0x82, 0xf2,
+ 0x6e, 0x94, 0x43, 0xae, 0xc3, 0xd5, 0xcd, 0x8e,
+ 0xfe, 0x5b, 0x9a, 0x88, 0x43, 0x01, 0x75, 0xb2,
+ 0x23, 0x09, 0xf7, 0x89, 0x83, 0xe7, 0xfa, 0xf9,
+ 0xb4, 0x9b, 0xf8, 0xef, 0xbd, 0x1c, 0x92, 0xc1,
+ 0xda, 0x7e, 0xfe, 0x05, 0xba, 0x5a, 0xcd, 0x07,
+ 0x6a, 0x78, 0x9e, 0x5d, 0xfb, 0x11, 0x2f, 0x79,
+ 0x38, 0xb6, 0xc2, 0x5b, 0x6b, 0x51, 0xb4, 0x71,
+ 0xdd, 0xf7, 0x2a, 0xe4, 0xf4, 0x72, 0x76, 0xad,
+ 0xc2, 0xdd, 0x64, 0x5d, 0x79, 0xb6, 0xf5, 0x7a,
+ 0x77, 0x20, 0x05, 0x3d, 0x30, 0x06, 0xd4, 0x4c,
+ 0x0a, 0x2c, 0x98, 0x5a, 0xb9, 0xd4, 0x98, 0xa9,
+ 0x3f, 0xc6, 0x12, 0xea, 0x3b, 0x4b, 0xc5, 0x79,
+ 0x64, 0x63, 0x6b, 0x09, 0x54, 0x3b, 0x14, 0x27,
+ 0xba, 0x99, 0x80, 0xc8, 0x72, 0xa8, 0x12, 0x90,
+ 0x29, 0xba, 0x40, 0x54, 0x97, 0x2b, 0x7b, 0xfe,
+ 0xeb, 0xcd, 0x01, 0x05, 0x44, 0x72, 0xdb, 0x99,
+ 0xe4, 0x61, 0xc9, 0x69, 0xd6, 0xb9, 0x28, 0xd1,
+ 0x05, 0x3e, 0xf9, 0x0b, 0x49, 0x0a, 0x49, 0xe9,
+ 0x8d, 0x0e, 0xa7, 0x4a, 0x0f, 0xaf, 0x32, 0xd0,
+ 0xe0, 0xb2, 0x3a, 0x55, 0x58, 0xfe, 0x5c, 0x28,
+ 0x70, 0x51, 0x23, 0xb0, 0x7b, 0x6a, 0x5f, 0x1e,
+ 0xb8, 0x17, 0xd7, 0x94, 0x15, 0x8f, 0xee, 0x20,
+ 0xc7, 0x42, 0x25, 0x3e, 0x9a, 0x14, 0xd7, 0x60,
+ 0x72, 0x39, 0x47, 0x48, 0xa9, 0xfe, 0xdd, 0x47,
+ 0x0a, 0xb1, 0xe6, 0x60, 0x28, 0x8c, 0x11, 0x68,
+ 0xe1, 0xff, 0xd7, 0xce, 0xc8, 0xbe, 0xb3, 0xfe,
+ 0x27, 0x30, 0x09, 0x70, 0xd7, 0xfa, 0x02, 0x33,
+ 0x3a, 0x61, 0x2e, 0xc7, 0xff, 0xa4, 0x2a, 0xa8,
+ 0x6e, 0xb4, 0x79, 0x35, 0x6d, 0x4c, 0x1e, 0x38,
+ 0xf8, 0xee, 0xd4, 0x84, 0x4e, 0x6e, 0x28, 0xa7,
+ 0xce, 0xc8, 0xc1, 0xcf, 0x80, 0x05, 0xf3, 0x04,
+ 0xef, 0xc8, 0x18, 0x28, 0x2e, 0x8d, 0x5e, 0x0c,
+ 0xdf, 0xb8, 0x5f, 0x96, 0xe8, 0xc6, 0x9c, 0x2f,
+ 0xe5, 0xa6, 0x44, 0xd7, 0xe7, 0x99, 0x44, 0x0c,
+ 0xec, 0xd7, 0x05, 0x60, 0x97, 0xbb, 0x74, 0x77,
+ 0x58, 0xd5, 0xbb, 0x48, 0xde, 0x5a, 0xb2, 0x54,
+ 0x7f, 0x0e, 0x46, 0x70, 0x6a, 0x6f, 0x78, 0xa5,
+ 0x08, 0x89, 0x05, 0x4e, 0x7e, 0xa0, 0x69, 0xb4,
+ 0x40, 0x60, 0x55, 0x77, 0x75, 0x9b, 0x19, 0xf2,
+ 0xd5, 0x13, 0x80, 0x77, 0xf9, 0x4b, 0x3f, 0x1e,
+ 0xee, 0xe6, 0x76, 0x84, 0x7b, 0x8c, 0xe5, 0x27,
+ 0xa8, 0x0a, 0x91, 0x01, 0x68, 0x71, 0x8a, 0x3f,
+ 0x06, 0xab, 0xf6, 0xa9, 0xa5, 0xe6, 0x72, 0x92,
+ 0xe4, 0x67, 0xe2, 0xa2, 0x46, 0x35, 0x84, 0x55,
+ 0x7d, 0xca, 0xa8, 0x85, 0xd0, 0xf1, 0x3f, 0xbe,
+ 0xd7, 0x34, 0x64, 0xfc, 0xae, 0xe3, 0xe4, 0x04,
+ 0x9f, 0x66, 0x02, 0xb9, 0x88, 0x10, 0xd9, 0xc4,
+ 0x4c, 0x31, 0x43, 0x7a, 0x93, 0xe2, 0x9b, 0x56,
+ 0x43, 0x84, 0xdc, 0xdc, 0xde, 0x1d, 0xa4, 0x02,
+ 0x0e, 0xc2, 0xef, 0xc3, 0xf8, 0x78, 0xd1, 0xb2,
+ 0x6b, 0x63, 0x18, 0xc9, 0xa9, 0xe5, 0x72, 0xd8,
+ 0xf3, 0xb9, 0xd1, 0x8a, 0xc7, 0x1a, 0x02, 0x27,
+ 0x20, 0x77, 0x10, 0xe5, 0xc8, 0xd4, 0x4a, 0x47,
+ 0xe5, 0xdf, 0x5f, 0x01, 0xaa, 0xb0, 0xd4, 0x10,
+ 0xbb, 0x69, 0xe3, 0x36, 0xc8, 0xe1, 0x3d, 0x43,
+ 0xfb, 0x86, 0xcd, 0xcc, 0xbf, 0xf4, 0x88, 0xe0,
+ 0x20, 0xca, 0xb7, 0x1b, 0xf1, 0x2f, 0x5c, 0xee,
+ 0xd4, 0xd3, 0xa3, 0xcc, 0xa4, 0x1e, 0x1c, 0x47,
+ 0xfb, 0xbf, 0xfc, 0xa2, 0x41, 0x55, 0x9d, 0xf6,
+ 0x5a, 0x5e, 0x65, 0x32, 0x34, 0x7b, 0x52, 0x8d,
+ 0xd5, 0xd0, 0x20, 0x60, 0x03, 0xab, 0x3f, 0x8c,
+ 0xd4, 0x21, 0xea, 0x2a, 0xd9, 0xc4, 0xd0, 0xd3,
+ 0x65, 0xd8, 0x7a, 0x13, 0x28, 0x62, 0x32, 0x4b,
+ 0x2c, 0x87, 0x93, 0xa8, 0xb4, 0x52, 0x45, 0x09,
+ 0x44, 0xec, 0xec, 0xc3, 0x17, 0xdb, 0x9a, 0x4d,
+ 0x5c, 0xa9, 0x11, 0xd4, 0x7d, 0xaf, 0x9e, 0xf1,
+ 0x2d, 0xb2, 0x66, 0xc5, 0x1d, 0xed, 0xb7, 0xcd,
+ 0x0b, 0x25, 0x5e, 0x30, 0x47, 0x3f, 0x40, 0xf4,
+ 0xa1, 0xa0, 0x00, 0x94, 0x10, 0xc5, 0x6a, 0x63,
+ 0x1a, 0xd5, 0x88, 0x92, 0x8e, 0x82, 0x39, 0x87,
+ 0x3c, 0x78, 0x65, 0x58, 0x42, 0x75, 0x5b, 0xdd,
+ 0x77, 0x3e, 0x09, 0x4e, 0x76, 0x5b, 0xe6, 0x0e,
+ 0x4d, 0x38, 0xb2, 0xc0, 0xb8, 0x95, 0x01, 0x7a,
+ 0x10, 0xe0, 0xfb, 0x07, 0xf2, 0xab, 0x2d, 0x8c,
+ 0x32, 0xed, 0x2b, 0xc0, 0x46, 0xc2, 0xf5, 0x38,
+ 0x83, 0xf0, 0x17, 0xec, 0xc1, 0x20, 0x6a, 0x9a,
+ 0x0b, 0x00, 0xa0, 0x98, 0x22, 0x50, 0x23, 0xd5,
+ 0x80, 0x6b, 0xf6, 0x1f, 0xc3, 0xcc, 0x97, 0xc9,
+ 0x24, 0x9f, 0xf3, 0xaf, 0x43, 0x14, 0xd5, 0xa0
+};
+static const u8 dec_output010[] __initconst = {
+ 0x42, 0x93, 0xe4, 0xeb, 0x97, 0xb0, 0x57, 0xbf,
+ 0x1a, 0x8b, 0x1f, 0xe4, 0x5f, 0x36, 0x20, 0x3c,
+ 0xef, 0x0a, 0xa9, 0x48, 0x5f, 0x5f, 0x37, 0x22,
+ 0x3a, 0xde, 0xe3, 0xae, 0xbe, 0xad, 0x07, 0xcc,
+ 0xb1, 0xf6, 0xf5, 0xf9, 0x56, 0xdd, 0xe7, 0x16,
+ 0x1e, 0x7f, 0xdf, 0x7a, 0x9e, 0x75, 0xb7, 0xc7,
+ 0xbe, 0xbe, 0x8a, 0x36, 0x04, 0xc0, 0x10, 0xf4,
+ 0x95, 0x20, 0x03, 0xec, 0xdc, 0x05, 0xa1, 0x7d,
+ 0xc4, 0xa9, 0x2c, 0x82, 0xd0, 0xbc, 0x8b, 0xc5,
+ 0xc7, 0x45, 0x50, 0xf6, 0xa2, 0x1a, 0xb5, 0x46,
+ 0x3b, 0x73, 0x02, 0xa6, 0x83, 0x4b, 0x73, 0x82,
+ 0x58, 0x5e, 0x3b, 0x65, 0x2f, 0x0e, 0xfd, 0x2b,
+ 0x59, 0x16, 0xce, 0xa1, 0x60, 0x9c, 0xe8, 0x3a,
+ 0x99, 0xed, 0x8d, 0x5a, 0xcf, 0xf6, 0x83, 0xaf,
+ 0xba, 0xd7, 0x73, 0x73, 0x40, 0x97, 0x3d, 0xca,
+ 0xef, 0x07, 0x57, 0xe6, 0xd9, 0x70, 0x0e, 0x95,
+ 0xae, 0xa6, 0x8d, 0x04, 0xcc, 0xee, 0xf7, 0x09,
+ 0x31, 0x77, 0x12, 0xa3, 0x23, 0x97, 0x62, 0xb3,
+ 0x7b, 0x32, 0xfb, 0x80, 0x14, 0x48, 0x81, 0xc3,
+ 0xe5, 0xea, 0x91, 0x39, 0x52, 0x81, 0xa2, 0x4f,
+ 0xe4, 0xb3, 0x09, 0xff, 0xde, 0x5e, 0xe9, 0x58,
+ 0x84, 0x6e, 0xf9, 0x3d, 0xdf, 0x25, 0xea, 0xad,
+ 0xae, 0xe6, 0x9a, 0xd1, 0x89, 0x55, 0xd3, 0xde,
+ 0x6c, 0x52, 0xdb, 0x70, 0xfe, 0x37, 0xce, 0x44,
+ 0x0a, 0xa8, 0x25, 0x5f, 0x92, 0xc1, 0x33, 0x4a,
+ 0x4f, 0x9b, 0x62, 0x35, 0xff, 0xce, 0xc0, 0xa9,
+ 0x60, 0xce, 0x52, 0x00, 0x97, 0x51, 0x35, 0x26,
+ 0x2e, 0xb9, 0x36, 0xa9, 0x87, 0x6e, 0x1e, 0xcc,
+ 0x91, 0x78, 0x53, 0x98, 0x86, 0x5b, 0x9c, 0x74,
+ 0x7d, 0x88, 0x33, 0xe1, 0xdf, 0x37, 0x69, 0x2b,
+ 0xbb, 0xf1, 0x4d, 0xf4, 0xd1, 0xf1, 0x39, 0x93,
+ 0x17, 0x51, 0x19, 0xe3, 0x19, 0x1e, 0x76, 0x37,
+ 0x25, 0xfb, 0x09, 0x27, 0x6a, 0xab, 0x67, 0x6f,
+ 0x14, 0x12, 0x64, 0xe7, 0xc4, 0x07, 0xdf, 0x4d,
+ 0x17, 0xbb, 0x6d, 0xe0, 0xe9, 0xb9, 0xab, 0xca,
+ 0x10, 0x68, 0xaf, 0x7e, 0xb7, 0x33, 0x54, 0x73,
+ 0x07, 0x6e, 0xf7, 0x81, 0x97, 0x9c, 0x05, 0x6f,
+ 0x84, 0x5f, 0xd2, 0x42, 0xfb, 0x38, 0xcf, 0xd1,
+ 0x2f, 0x14, 0x30, 0x88, 0x98, 0x4d, 0x5a, 0xa9,
+ 0x76, 0xd5, 0x4f, 0x3e, 0x70, 0x6c, 0x85, 0x76,
+ 0xd7, 0x01, 0xa0, 0x1a, 0xc8, 0x4e, 0xaa, 0xac,
+ 0x78, 0xfe, 0x46, 0xde, 0x6a, 0x05, 0x46, 0xa7,
+ 0x43, 0x0c, 0xb9, 0xde, 0xb9, 0x68, 0xfb, 0xce,
+ 0x42, 0x99, 0x07, 0x4d, 0x0b, 0x3b, 0x5a, 0x30,
+ 0x35, 0xa8, 0xf9, 0x3a, 0x73, 0xef, 0x0f, 0xdb,
+ 0x1e, 0x16, 0x42, 0xc4, 0xba, 0xae, 0x58, 0xaa,
+ 0xf8, 0xe5, 0x75, 0x2f, 0x1b, 0x15, 0x5c, 0xfd,
+ 0x0a, 0x97, 0xd0, 0xe4, 0x37, 0x83, 0x61, 0x5f,
+ 0x43, 0xa6, 0xc7, 0x3f, 0x38, 0x59, 0xe6, 0xeb,
+ 0xa3, 0x90, 0xc3, 0xaa, 0xaa, 0x5a, 0xd3, 0x34,
+ 0xd4, 0x17, 0xc8, 0x65, 0x3e, 0x57, 0xbc, 0x5e,
+ 0xdd, 0x9e, 0xb7, 0xf0, 0x2e, 0x5b, 0xb2, 0x1f,
+ 0x8a, 0x08, 0x0d, 0x45, 0x91, 0x0b, 0x29, 0x53,
+ 0x4f, 0x4c, 0x5a, 0x73, 0x56, 0xfe, 0xaf, 0x41,
+ 0x01, 0x39, 0x0a, 0x24, 0x3c, 0x7e, 0xbe, 0x4e,
+ 0x53, 0xf3, 0xeb, 0x06, 0x66, 0x51, 0x28, 0x1d,
+ 0xbd, 0x41, 0x0a, 0x01, 0xab, 0x16, 0x47, 0x27,
+ 0x47, 0x47, 0xf7, 0xcb, 0x46, 0x0a, 0x70, 0x9e,
+ 0x01, 0x9c, 0x09, 0xe1, 0x2a, 0x00, 0x1a, 0xd8,
+ 0xd4, 0x79, 0x9d, 0x80, 0x15, 0x8e, 0x53, 0x2a,
+ 0x65, 0x83, 0x78, 0x3e, 0x03, 0x00, 0x07, 0x12,
+ 0x1f, 0x33, 0x3e, 0x7b, 0x13, 0x37, 0xf1, 0xc3,
+ 0xef, 0xb7, 0xc1, 0x20, 0x3c, 0x3e, 0x67, 0x66,
+ 0x5d, 0x88, 0xa7, 0x7d, 0x33, 0x50, 0x77, 0xb0,
+ 0x28, 0x8e, 0xe7, 0x2c, 0x2e, 0x7a, 0xf4, 0x3c,
+ 0x8d, 0x74, 0x83, 0xaf, 0x8e, 0x87, 0x0f, 0xe4,
+ 0x50, 0xff, 0x84, 0x5c, 0x47, 0x0c, 0x6a, 0x49,
+ 0xbf, 0x42, 0x86, 0x77, 0x15, 0x48, 0xa5, 0x90,
+ 0x5d, 0x93, 0xd6, 0x2a, 0x11, 0xd5, 0xd5, 0x11,
+ 0xaa, 0xce, 0xe7, 0x6f, 0xa5, 0xb0, 0x09, 0x2c,
+ 0x8d, 0xd3, 0x92, 0xf0, 0x5a, 0x2a, 0xda, 0x5b,
+ 0x1e, 0xd5, 0x9a, 0xc4, 0xc4, 0xf3, 0x49, 0x74,
+ 0x41, 0xca, 0xe8, 0xc1, 0xf8, 0x44, 0xd6, 0x3c,
+ 0xae, 0x6c, 0x1d, 0x9a, 0x30, 0x04, 0x4d, 0x27,
+ 0x0e, 0xb1, 0x5f, 0x59, 0xa2, 0x24, 0xe8, 0xe1,
+ 0x98, 0xc5, 0x6a, 0x4c, 0xfe, 0x41, 0xd2, 0x27,
+ 0x42, 0x52, 0xe1, 0xe9, 0x7d, 0x62, 0xe4, 0x88,
+ 0x0f, 0xad, 0xb2, 0x70, 0xcb, 0x9d, 0x4c, 0x27,
+ 0x2e, 0x76, 0x1e, 0x1a, 0x63, 0x65, 0xf5, 0x3b,
+ 0xf8, 0x57, 0x69, 0xeb, 0x5b, 0x38, 0x26, 0x39,
+ 0x33, 0x25, 0x45, 0x3e, 0x91, 0xb8, 0xd8, 0xc7,
+ 0xd5, 0x42, 0xc0, 0x22, 0x31, 0x74, 0xf4, 0xbc,
+ 0x0c, 0x23, 0xf1, 0xca, 0xc1, 0x8d, 0xd7, 0xbe,
+ 0xc9, 0x62, 0xe4, 0x08, 0x1a, 0xcf, 0x36, 0xd5,
+ 0xfe, 0x55, 0x21, 0x59, 0x91, 0x87, 0x87, 0xdf,
+ 0x06, 0xdb, 0xdf, 0x96, 0x45, 0x58, 0xda, 0x05,
+ 0xcd, 0x50, 0x4d, 0xd2, 0x7d, 0x05, 0x18, 0x73,
+ 0x6a, 0x8d, 0x11, 0x85, 0xa6, 0x88, 0xe8, 0xda,
+ 0xe6, 0x30, 0x33, 0xa4, 0x89, 0x31, 0x75, 0xbe,
+ 0x69, 0x43, 0x84, 0x43, 0x50, 0x87, 0xdd, 0x71,
+ 0x36, 0x83, 0xc3, 0x78, 0x74, 0x24, 0x0a, 0xed,
+ 0x7b, 0xdb, 0xa4, 0x24, 0x0b, 0xb9, 0x7e, 0x5d,
+ 0xff, 0xde, 0xb1, 0xef, 0x61, 0x5a, 0x45, 0x33,
+ 0xf6, 0x17, 0x07, 0x08, 0x98, 0x83, 0x92, 0x0f,
+ 0x23, 0x6d, 0xe6, 0xaa, 0x17, 0x54, 0xad, 0x6a,
+ 0xc8, 0xdb, 0x26, 0xbe, 0xb8, 0xb6, 0x08, 0xfa,
+ 0x68, 0xf1, 0xd7, 0x79, 0x6f, 0x18, 0xb4, 0x9e,
+ 0x2d, 0x3f, 0x1b, 0x64, 0xaf, 0x8d, 0x06, 0x0e,
+ 0x49, 0x28, 0xe0, 0x5d, 0x45, 0x68, 0x13, 0x87,
+ 0xfa, 0xde, 0x40, 0x7b, 0xd2, 0xc3, 0x94, 0xd5,
+ 0xe1, 0xd9, 0xc2, 0xaf, 0x55, 0x89, 0xeb, 0xb4,
+ 0x12, 0x59, 0xa8, 0xd4, 0xc5, 0x29, 0x66, 0x38,
+ 0xe6, 0xac, 0x22, 0x22, 0xd9, 0x64, 0x9b, 0x34,
+ 0x0a, 0x32, 0x9f, 0xc2, 0xbf, 0x17, 0x6c, 0x3f,
+ 0x71, 0x7a, 0x38, 0x6b, 0x98, 0xfb, 0x49, 0x36,
+ 0x89, 0xc9, 0xe2, 0xd6, 0xc7, 0x5d, 0xd0, 0x69,
+ 0x5f, 0x23, 0x35, 0xc9, 0x30, 0xe2, 0xfd, 0x44,
+ 0x58, 0x39, 0xd7, 0x97, 0xfb, 0x5c, 0x00, 0xd5,
+ 0x4f, 0x7a, 0x1a, 0x95, 0x8b, 0x62, 0x4b, 0xce,
+ 0xe5, 0x91, 0x21, 0x7b, 0x30, 0x00, 0xd6, 0xdd,
+ 0x6d, 0x02, 0x86, 0x49, 0x0f, 0x3c, 0x1a, 0x27,
+ 0x3c, 0xd3, 0x0e, 0x71, 0xf2, 0xff, 0xf5, 0x2f,
+ 0x87, 0xac, 0x67, 0x59, 0x81, 0xa3, 0xf7, 0xf8,
+ 0xd6, 0x11, 0x0c, 0x84, 0xa9, 0x03, 0xee, 0x2a,
+ 0xc4, 0xf3, 0x22, 0xab, 0x7c, 0xe2, 0x25, 0xf5,
+ 0x67, 0xa3, 0xe4, 0x11, 0xe0, 0x59, 0xb3, 0xca,
+ 0x87, 0xa0, 0xae, 0xc9, 0xa6, 0x62, 0x1b, 0x6e,
+ 0x4d, 0x02, 0x6b, 0x07, 0x9d, 0xfd, 0xd0, 0x92,
+ 0x06, 0xe1, 0xb2, 0x9a, 0x4a, 0x1f, 0x1f, 0x13,
+ 0x49, 0x99, 0x97, 0x08, 0xde, 0x7f, 0x98, 0xaf,
+ 0x51, 0x98, 0xee, 0x2c, 0xcb, 0xf0, 0x0b, 0xc6,
+ 0xb6, 0xb7, 0x2d, 0x9a, 0xb1, 0xac, 0xa6, 0xe3,
+ 0x15, 0x77, 0x9d, 0x6b, 0x1a, 0xe4, 0xfc, 0x8b,
+ 0xf2, 0x17, 0x59, 0x08, 0x04, 0x58, 0x81, 0x9d,
+ 0x1b, 0x1b, 0x69, 0x55, 0xc2, 0xb4, 0x3c, 0x1f,
+ 0x50, 0xf1, 0x7f, 0x77, 0x90, 0x4c, 0x66, 0x40,
+ 0x5a, 0xc0, 0x33, 0x1f, 0xcb, 0x05, 0x6d, 0x5c,
+ 0x06, 0x87, 0x52, 0xa2, 0x8f, 0x26, 0xd5, 0x4f
+};
+static const u8 dec_assoc010[] __initconst = {
+ 0xd2, 0xa1, 0x70, 0xdb, 0x7a, 0xf8, 0xfa, 0x27,
+ 0xba, 0x73, 0x0f, 0xbf, 0x3d, 0x1e, 0x82, 0xb2
+};
+static const u8 dec_nonce010[] __initconst = {
+ 0xdb, 0x92, 0x0f, 0x7f, 0x17, 0x54, 0x0c, 0x30
+};
+static const u8 dec_key010[] __initconst = {
+ 0x47, 0x11, 0xeb, 0x86, 0x2b, 0x2c, 0xab, 0x44,
+ 0x34, 0xda, 0x7f, 0x57, 0x03, 0x39, 0x0c, 0xaf,
+ 0x2c, 0x14, 0xfd, 0x65, 0x23, 0xe9, 0x8e, 0x74,
+ 0xd5, 0x08, 0x68, 0x08, 0xe7, 0xb4, 0x72, 0xd7
+};
+
+static const u8 dec_input011[] __initconst = {
+ 0x6a, 0xfc, 0x4b, 0x25, 0xdf, 0xc0, 0xe4, 0xe8,
+ 0x17, 0x4d, 0x4c, 0xc9, 0x7e, 0xde, 0x3a, 0xcc,
+ 0x3c, 0xba, 0x6a, 0x77, 0x47, 0xdb, 0xe3, 0x74,
+ 0x7a, 0x4d, 0x5f, 0x8d, 0x37, 0x55, 0x80, 0x73,
+ 0x90, 0x66, 0x5d, 0x3a, 0x7d, 0x5d, 0x86, 0x5e,
+ 0x8d, 0xfd, 0x83, 0xff, 0x4e, 0x74, 0x6f, 0xf9,
+ 0xe6, 0x70, 0x17, 0x70, 0x3e, 0x96, 0xa7, 0x7e,
+ 0xcb, 0xab, 0x8f, 0x58, 0x24, 0x9b, 0x01, 0xfd,
+ 0xcb, 0xe6, 0x4d, 0x9b, 0xf0, 0x88, 0x94, 0x57,
+ 0x66, 0xef, 0x72, 0x4c, 0x42, 0x6e, 0x16, 0x19,
+ 0x15, 0xea, 0x70, 0x5b, 0xac, 0x13, 0xdb, 0x9f,
+ 0x18, 0xe2, 0x3c, 0x26, 0x97, 0xbc, 0xdc, 0x45,
+ 0x8c, 0x6c, 0x24, 0x69, 0x9c, 0xf7, 0x65, 0x1e,
+ 0x18, 0x59, 0x31, 0x7c, 0xe4, 0x73, 0xbc, 0x39,
+ 0x62, 0xc6, 0x5c, 0x9f, 0xbf, 0xfa, 0x90, 0x03,
+ 0xc9, 0x72, 0x26, 0xb6, 0x1b, 0xc2, 0xb7, 0x3f,
+ 0xf2, 0x13, 0x77, 0xf2, 0x8d, 0xb9, 0x47, 0xd0,
+ 0x53, 0xdd, 0xc8, 0x91, 0x83, 0x8b, 0xb1, 0xce,
+ 0xa3, 0xfe, 0xcd, 0xd9, 0xdd, 0x92, 0x7b, 0xdb,
+ 0xb8, 0xfb, 0xc9, 0x2d, 0x01, 0x59, 0x39, 0x52,
+ 0xad, 0x1b, 0xec, 0xcf, 0xd7, 0x70, 0x13, 0x21,
+ 0xf5, 0x47, 0xaa, 0x18, 0x21, 0x5c, 0xc9, 0x9a,
+ 0xd2, 0x6b, 0x05, 0x9c, 0x01, 0xa1, 0xda, 0x35,
+ 0x5d, 0xb3, 0x70, 0xe6, 0xa9, 0x80, 0x8b, 0x91,
+ 0xb7, 0xb3, 0x5f, 0x24, 0x9a, 0xb7, 0xd1, 0x6b,
+ 0xa1, 0x1c, 0x50, 0xba, 0x49, 0xe0, 0xee, 0x2e,
+ 0x75, 0xac, 0x69, 0xc0, 0xeb, 0x03, 0xdd, 0x19,
+ 0xe5, 0xf6, 0x06, 0xdd, 0xc3, 0xd7, 0x2b, 0x07,
+ 0x07, 0x30, 0xa7, 0x19, 0x0c, 0xbf, 0xe6, 0x18,
+ 0xcc, 0xb1, 0x01, 0x11, 0x85, 0x77, 0x1d, 0x96,
+ 0xa7, 0xa3, 0x00, 0x84, 0x02, 0xa2, 0x83, 0x68,
+ 0xda, 0x17, 0x27, 0xc8, 0x7f, 0x23, 0xb7, 0xf4,
+ 0x13, 0x85, 0xcf, 0xdd, 0x7a, 0x7d, 0x24, 0x57,
+ 0xfe, 0x05, 0x93, 0xf5, 0x74, 0xce, 0xed, 0x0c,
+ 0x20, 0x98, 0x8d, 0x92, 0x30, 0xa1, 0x29, 0x23,
+ 0x1a, 0xa0, 0x4f, 0x69, 0x56, 0x4c, 0xe1, 0xc8,
+ 0xce, 0xf6, 0x9a, 0x0c, 0xa4, 0xfa, 0x04, 0xf6,
+ 0x62, 0x95, 0xf2, 0xfa, 0xc7, 0x40, 0x68, 0x40,
+ 0x8f, 0x41, 0xda, 0xb4, 0x26, 0x6f, 0x70, 0xab,
+ 0x40, 0x61, 0xa4, 0x0e, 0x75, 0xfb, 0x86, 0xeb,
+ 0x9d, 0x9a, 0x1f, 0xec, 0x76, 0x99, 0xe7, 0xea,
+ 0xaa, 0x1e, 0x2d, 0xb5, 0xd4, 0xa6, 0x1a, 0xb8,
+ 0x61, 0x0a, 0x1d, 0x16, 0x5b, 0x98, 0xc2, 0x31,
+ 0x40, 0xe7, 0x23, 0x1d, 0x66, 0x99, 0xc8, 0xc0,
+ 0xd7, 0xce, 0xf3, 0x57, 0x40, 0x04, 0x3f, 0xfc,
+ 0xea, 0xb3, 0xfc, 0xd2, 0xd3, 0x99, 0xa4, 0x94,
+ 0x69, 0xa0, 0xef, 0xd1, 0x85, 0xb3, 0xa6, 0xb1,
+ 0x28, 0xbf, 0x94, 0x67, 0x22, 0xc3, 0x36, 0x46,
+ 0xf8, 0xd2, 0x0f, 0x5f, 0xf4, 0x59, 0x80, 0xe6,
+ 0x2d, 0x43, 0x08, 0x7d, 0x19, 0x09, 0x97, 0xa7,
+ 0x4c, 0x3d, 0x8d, 0xba, 0x65, 0x62, 0xa3, 0x71,
+ 0x33, 0x29, 0x62, 0xdb, 0xc1, 0x33, 0x34, 0x1a,
+ 0x63, 0x33, 0x16, 0xb6, 0x64, 0x7e, 0xab, 0x33,
+ 0xf0, 0xe6, 0x26, 0x68, 0xba, 0x1d, 0x2e, 0x38,
+ 0x08, 0xe6, 0x02, 0xd3, 0x25, 0x2c, 0x47, 0x23,
+ 0x58, 0x34, 0x0f, 0x9d, 0x63, 0x4f, 0x63, 0xbb,
+ 0x7f, 0x3b, 0x34, 0x38, 0xa7, 0xb5, 0x8d, 0x65,
+ 0xd9, 0x9f, 0x79, 0x55, 0x3e, 0x4d, 0xe7, 0x73,
+ 0xd8, 0xf6, 0x98, 0x97, 0x84, 0x60, 0x9c, 0xc8,
+ 0xa9, 0x3c, 0xf6, 0xdc, 0x12, 0x5c, 0xe1, 0xbb,
+ 0x0b, 0x8b, 0x98, 0x9c, 0x9d, 0x26, 0x7c, 0x4a,
+ 0xe6, 0x46, 0x36, 0x58, 0x21, 0x4a, 0xee, 0xca,
+ 0xd7, 0x3b, 0xc2, 0x6c, 0x49, 0x2f, 0xe5, 0xd5,
+ 0x03, 0x59, 0x84, 0x53, 0xcb, 0xfe, 0x92, 0x71,
+ 0x2e, 0x7c, 0x21, 0xcc, 0x99, 0x85, 0x7f, 0xb8,
+ 0x74, 0x90, 0x13, 0x42, 0x3f, 0xe0, 0x6b, 0x1d,
+ 0xf2, 0x4d, 0x54, 0xd4, 0xfc, 0x3a, 0x05, 0xe6,
+ 0x74, 0xaf, 0xa6, 0xa0, 0x2a, 0x20, 0x23, 0x5d,
+ 0x34, 0x5c, 0xd9, 0x3e, 0x4e, 0xfa, 0x93, 0xe7,
+ 0xaa, 0xe9, 0x6f, 0x08, 0x43, 0x67, 0x41, 0xc5,
+ 0xad, 0xfb, 0x31, 0x95, 0x82, 0x73, 0x32, 0xd8,
+ 0xa6, 0xa3, 0xed, 0x0e, 0x2d, 0xf6, 0x5f, 0xfd,
+ 0x80, 0xa6, 0x7a, 0xe0, 0xdf, 0x78, 0x15, 0x29,
+ 0x74, 0x33, 0xd0, 0x9e, 0x83, 0x86, 0x72, 0x22,
+ 0x57, 0x29, 0xb9, 0x9e, 0x5d, 0xd3, 0x1a, 0xb5,
+ 0x96, 0x72, 0x41, 0x3d, 0xf1, 0x64, 0x43, 0x67,
+ 0xee, 0xaa, 0x5c, 0xd3, 0x9a, 0x96, 0x13, 0x11,
+ 0x5d, 0xf3, 0x0c, 0x87, 0x82, 0x1e, 0x41, 0x9e,
+ 0xd0, 0x27, 0xd7, 0x54, 0x3b, 0x67, 0x73, 0x09,
+ 0x91, 0xe9, 0xd5, 0x36, 0xa7, 0xb5, 0x55, 0xe4,
+ 0xf3, 0x21, 0x51, 0x49, 0x22, 0x07, 0x55, 0x4f,
+ 0x44, 0x4b, 0xd2, 0x15, 0x93, 0x17, 0x2a, 0xfa,
+ 0x4d, 0x4a, 0x57, 0xdb, 0x4c, 0xa6, 0xeb, 0xec,
+ 0x53, 0x25, 0x6c, 0x21, 0xed, 0x00, 0x4c, 0x3b,
+ 0xca, 0x14, 0x57, 0xa9, 0xd6, 0x6a, 0xcd, 0x8d,
+ 0x5e, 0x74, 0xac, 0x72, 0xc1, 0x97, 0xe5, 0x1b,
+ 0x45, 0x4e, 0xda, 0xfc, 0xcc, 0x40, 0xe8, 0x48,
+ 0x88, 0x0b, 0xa3, 0xe3, 0x8d, 0x83, 0x42, 0xc3,
+ 0x23, 0xfd, 0x68, 0xb5, 0x8e, 0xf1, 0x9d, 0x63,
+ 0x77, 0xe9, 0xa3, 0x8e, 0x8c, 0x26, 0x6b, 0xbd,
+ 0x72, 0x73, 0x35, 0x0c, 0x03, 0xf8, 0x43, 0x78,
+ 0x52, 0x71, 0x15, 0x1f, 0x71, 0x5d, 0x6e, 0xed,
+ 0xb9, 0xcc, 0x86, 0x30, 0xdb, 0x2b, 0xd3, 0x82,
+ 0x88, 0x23, 0x71, 0x90, 0x53, 0x5c, 0xa9, 0x2f,
+ 0x76, 0x01, 0xb7, 0x9a, 0xfe, 0x43, 0x55, 0xa3,
+ 0x04, 0x9b, 0x0e, 0xe4, 0x59, 0xdf, 0xc9, 0xe9,
+ 0xb1, 0xea, 0x29, 0x28, 0x3c, 0x5c, 0xae, 0x72,
+ 0x84, 0xb6, 0xc6, 0xeb, 0x0c, 0x27, 0x07, 0x74,
+ 0x90, 0x0d, 0x31, 0xb0, 0x00, 0x77, 0xe9, 0x40,
+ 0x70, 0x6f, 0x68, 0xa7, 0xfd, 0x06, 0xec, 0x4b,
+ 0xc0, 0xb7, 0xac, 0xbc, 0x33, 0xb7, 0x6d, 0x0a,
+ 0xbd, 0x12, 0x1b, 0x59, 0xcb, 0xdd, 0x32, 0xf5,
+ 0x1d, 0x94, 0x57, 0x76, 0x9e, 0x0c, 0x18, 0x98,
+ 0x71, 0xd7, 0x2a, 0xdb, 0x0b, 0x7b, 0xa7, 0x71,
+ 0xb7, 0x67, 0x81, 0x23, 0x96, 0xae, 0xb9, 0x7e,
+ 0x32, 0x43, 0x92, 0x8a, 0x19, 0xa0, 0xc4, 0xd4,
+ 0x3b, 0x57, 0xf9, 0x4a, 0x2c, 0xfb, 0x51, 0x46,
+ 0xbb, 0xcb, 0x5d, 0xb3, 0xef, 0x13, 0x93, 0x6e,
+ 0x68, 0x42, 0x54, 0x57, 0xd3, 0x6a, 0x3a, 0x8f,
+ 0x9d, 0x66, 0xbf, 0xbd, 0x36, 0x23, 0xf5, 0x93,
+ 0x83, 0x7b, 0x9c, 0xc0, 0xdd, 0xc5, 0x49, 0xc0,
+ 0x64, 0xed, 0x07, 0x12, 0xb3, 0xe6, 0xe4, 0xe5,
+ 0x38, 0x95, 0x23, 0xb1, 0xa0, 0x3b, 0x1a, 0x61,
+ 0xda, 0x17, 0xac, 0xc3, 0x58, 0xdd, 0x74, 0x64,
+ 0x22, 0x11, 0xe8, 0x32, 0x1d, 0x16, 0x93, 0x85,
+ 0x99, 0xa5, 0x9c, 0x34, 0x55, 0xb1, 0xe9, 0x20,
+ 0x72, 0xc9, 0x28, 0x7b, 0x79, 0x00, 0xa1, 0xa6,
+ 0xa3, 0x27, 0x40, 0x18, 0x8a, 0x54, 0xe0, 0xcc,
+ 0xe8, 0x4e, 0x8e, 0x43, 0x96, 0xe7, 0x3f, 0xc8,
+ 0xe9, 0xb2, 0xf9, 0xc9, 0xda, 0x04, 0x71, 0x50,
+ 0x47, 0xe4, 0xaa, 0xce, 0xa2, 0x30, 0xc8, 0xe4,
+ 0xac, 0xc7, 0x0d, 0x06, 0x2e, 0xe6, 0xe8, 0x80,
+ 0x36, 0x29, 0x9e, 0x01, 0xb8, 0xc3, 0xf0, 0xa0,
+ 0x5d, 0x7a, 0xca, 0x4d, 0xa0, 0x57, 0xbd, 0x2a,
+ 0x45, 0xa7, 0x7f, 0x9c, 0x93, 0x07, 0x8f, 0x35,
+ 0x67, 0x92, 0xe3, 0xe9, 0x7f, 0xa8, 0x61, 0x43,
+ 0x9e, 0x25, 0x4f, 0x33, 0x76, 0x13, 0x6e, 0x12,
+ 0xb9, 0xdd, 0xa4, 0x7c, 0x08, 0x9f, 0x7c, 0xe7,
+ 0x0a, 0x8d, 0x84, 0x06, 0xa4, 0x33, 0x17, 0x34,
+ 0x5e, 0x10, 0x7c, 0xc0, 0xa8, 0x3d, 0x1f, 0x42,
+ 0x20, 0x51, 0x65, 0x5d, 0x09, 0xc3, 0xaa, 0xc0,
+ 0xc8, 0x0d, 0xf0, 0x79, 0xbc, 0x20, 0x1b, 0x95,
+ 0xe7, 0x06, 0x7d, 0x47, 0x20, 0x03, 0x1a, 0x74,
+ 0xdd, 0xe2, 0xd4, 0xae, 0x38, 0x71, 0x9b, 0xf5,
+ 0x80, 0xec, 0x08, 0x4e, 0x56, 0xba, 0x76, 0x12,
+ 0x1a, 0xdf, 0x48, 0xf3, 0xae, 0xb3, 0xe6, 0xe6,
+ 0xbe, 0xc0, 0x91, 0x2e, 0x01, 0xb3, 0x01, 0x86,
+ 0xa2, 0xb9, 0x52, 0xd1, 0x21, 0xae, 0xd4, 0x97,
+ 0x1d, 0xef, 0x41, 0x12, 0x95, 0x3d, 0x48, 0x45,
+ 0x1c, 0x56, 0x32, 0x8f, 0xb8, 0x43, 0xbb, 0x19,
+ 0xf3, 0xca, 0xe9, 0xeb, 0x6d, 0x84, 0xbe, 0x86,
+ 0x06, 0xe2, 0x36, 0xb2, 0x62, 0x9d, 0xd3, 0x4c,
+ 0x48, 0x18, 0x54, 0x13, 0x4e, 0xcf, 0xfd, 0xba,
+ 0x84, 0xb9, 0x30, 0x53, 0xcf, 0xfb, 0xb9, 0x29,
+ 0x8f, 0xdc, 0x9f, 0xef, 0x60, 0x0b, 0x64, 0xf6,
+ 0x8b, 0xee, 0xa6, 0x91, 0xc2, 0x41, 0x6c, 0xf6,
+ 0xfa, 0x79, 0x67, 0x4b, 0xc1, 0x3f, 0xaf, 0x09,
+ 0x81, 0xd4, 0x5d, 0xcb, 0x09, 0xdf, 0x36, 0x31,
+ 0xc0, 0x14, 0x3c, 0x7c, 0x0e, 0x65, 0x95, 0x99,
+ 0x6d, 0xa3, 0xf4, 0xd7, 0x38, 0xee, 0x1a, 0x2b,
+ 0x37, 0xe2, 0xa4, 0x3b, 0x4b, 0xd0, 0x65, 0xca,
+ 0xf8, 0xc3, 0xe8, 0x15, 0x20, 0xef, 0xf2, 0x00,
+ 0xfd, 0x01, 0x09, 0xc5, 0xc8, 0x17, 0x04, 0x93,
+ 0xd0, 0x93, 0x03, 0x55, 0xc5, 0xfe, 0x32, 0xa3,
+ 0x3e, 0x28, 0x2d, 0x3b, 0x93, 0x8a, 0xcc, 0x07,
+ 0x72, 0x80, 0x8b, 0x74, 0x16, 0x24, 0xbb, 0xda,
+ 0x94, 0x39, 0x30, 0x8f, 0xb1, 0xcd, 0x4a, 0x90,
+ 0x92, 0x7c, 0x14, 0x8f, 0x95, 0x4e, 0xac, 0x9b,
+ 0xd8, 0x8f, 0x1a, 0x87, 0xa4, 0x32, 0x27, 0x8a,
+ 0xba, 0xf7, 0x41, 0xcf, 0x84, 0x37, 0x19, 0xe6,
+ 0x06, 0xf5, 0x0e, 0xcf, 0x36, 0xf5, 0x9e, 0x6c,
+ 0xde, 0xbc, 0xff, 0x64, 0x7e, 0x4e, 0x59, 0x57,
+ 0x48, 0xfe, 0x14, 0xf7, 0x9c, 0x93, 0x5d, 0x15,
+ 0xad, 0xcc, 0x11, 0xb1, 0x17, 0x18, 0xb2, 0x7e,
+ 0xcc, 0xab, 0xe9, 0xce, 0x7d, 0x77, 0x5b, 0x51,
+ 0x1b, 0x1e, 0x20, 0xa8, 0x32, 0x06, 0x0e, 0x75,
+ 0x93, 0xac, 0xdb, 0x35, 0x37, 0x1f, 0xe9, 0x19,
+ 0x1d, 0xb4, 0x71, 0x97, 0xd6, 0x4e, 0x2c, 0x08,
+ 0xa5, 0x13, 0xf9, 0x0e, 0x7e, 0x78, 0x6e, 0x14,
+ 0xe0, 0xa9, 0xb9, 0x96, 0x4c, 0x80, 0x82, 0xba,
+ 0x17, 0xb3, 0x9d, 0x69, 0xb0, 0x84, 0x46, 0xff,
+ 0xf9, 0x52, 0x79, 0x94, 0x58, 0x3a, 0x62, 0x90,
+ 0x15, 0x35, 0x71, 0x10, 0x37, 0xed, 0xa1, 0x8e,
+ 0x53, 0x6e, 0xf4, 0x26, 0x57, 0x93, 0x15, 0x93,
+ 0xf6, 0x81, 0x2c, 0x5a, 0x10, 0xda, 0x92, 0xad,
+ 0x2f, 0xdb, 0x28, 0x31, 0x2d, 0x55, 0x04, 0xd2,
+ 0x06, 0x28, 0x8c, 0x1e, 0xdc, 0xea, 0x54, 0xac,
+ 0xff, 0xb7, 0x6c, 0x30, 0x15, 0xd4, 0xb4, 0x0d,
+ 0x00, 0x93, 0x57, 0xdd, 0xd2, 0x07, 0x07, 0x06,
+ 0xd9, 0x43, 0x9b, 0xcd, 0x3a, 0xf4, 0x7d, 0x4c,
+ 0x36, 0x5d, 0x23, 0xa2, 0xcc, 0x57, 0x40, 0x91,
+ 0xe9, 0x2c, 0x2f, 0x2c, 0xd5, 0x30, 0x9b, 0x17,
+ 0xb0, 0xc9, 0xf7, 0xa7, 0x2f, 0xd1, 0x93, 0x20,
+ 0x6b, 0xc6, 0xc1, 0xe4, 0x6f, 0xcb, 0xd1, 0xe7,
+ 0x09, 0x0f, 0x9e, 0xdc, 0xaa, 0x9f, 0x2f, 0xdf,
+ 0x56, 0x9f, 0xd4, 0x33, 0x04, 0xaf, 0xd3, 0x6c,
+ 0x58, 0x61, 0xf0, 0x30, 0xec, 0xf2, 0x7f, 0xf2,
+ 0x9c, 0xdf, 0x39, 0xbb, 0x6f, 0xa2, 0x8c, 0x7e,
+ 0xc4, 0x22, 0x51, 0x71, 0xc0, 0x4d, 0x14, 0x1a,
+ 0xc4, 0xcd, 0x04, 0xd9, 0x87, 0x08, 0x50, 0x05,
+ 0xcc, 0xaf, 0xf6, 0xf0, 0x8f, 0x92, 0x54, 0x58,
+ 0xc2, 0xc7, 0x09, 0x7a, 0x59, 0x02, 0x05, 0xe8,
+ 0xb0, 0x86, 0xd9, 0xbf, 0x7b, 0x35, 0x51, 0x4d,
+ 0xaf, 0x08, 0x97, 0x2c, 0x65, 0xda, 0x2a, 0x71,
+ 0x3a, 0xa8, 0x51, 0xcc, 0xf2, 0x73, 0x27, 0xc3,
+ 0xfd, 0x62, 0xcf, 0xe3, 0xb2, 0xca, 0xcb, 0xbe,
+ 0x1a, 0x0a, 0xa1, 0x34, 0x7b, 0x77, 0xc4, 0x62,
+ 0x68, 0x78, 0x5f, 0x94, 0x07, 0x04, 0x65, 0x16,
+ 0x4b, 0x61, 0xcb, 0xff, 0x75, 0x26, 0x50, 0x66,
+ 0x1f, 0x6e, 0x93, 0xf8, 0xc5, 0x51, 0xeb, 0xa4,
+ 0x4a, 0x48, 0x68, 0x6b, 0xe2, 0x5e, 0x44, 0xb2,
+ 0x50, 0x2c, 0x6c, 0xae, 0x79, 0x4e, 0x66, 0x35,
+ 0x81, 0x50, 0xac, 0xbc, 0x3f, 0xb1, 0x0c, 0xf3,
+ 0x05, 0x3c, 0x4a, 0xa3, 0x6c, 0x2a, 0x79, 0xb4,
+ 0xb7, 0xab, 0xca, 0xc7, 0x9b, 0x8e, 0xcd, 0x5f,
+ 0x11, 0x03, 0xcb, 0x30, 0xa3, 0xab, 0xda, 0xfe,
+ 0x64, 0xb9, 0xbb, 0xd8, 0x5e, 0x3a, 0x1a, 0x56,
+ 0xe5, 0x05, 0x48, 0x90, 0x1e, 0x61, 0x69, 0x1b,
+ 0x22, 0xe6, 0x1a, 0x3c, 0x75, 0xad, 0x1f, 0x37,
+ 0x28, 0xdc, 0xe4, 0x6d, 0xbd, 0x42, 0xdc, 0xd3,
+ 0xc8, 0xb6, 0x1c, 0x48, 0xfe, 0x94, 0x77, 0x7f,
+ 0xbd, 0x62, 0xac, 0xa3, 0x47, 0x27, 0xcf, 0x5f,
+ 0xd9, 0xdb, 0xaf, 0xec, 0xf7, 0x5e, 0xc1, 0xb0,
+ 0x9d, 0x01, 0x26, 0x99, 0x7e, 0x8f, 0x03, 0x70,
+ 0xb5, 0x42, 0xbe, 0x67, 0x28, 0x1b, 0x7c, 0xbd,
+ 0x61, 0x21, 0x97, 0xcc, 0x5c, 0xe1, 0x97, 0x8f,
+ 0x8d, 0xde, 0x2b, 0xaa, 0xa7, 0x71, 0x1d, 0x1e,
+ 0x02, 0x73, 0x70, 0x58, 0x32, 0x5b, 0x1d, 0x67,
+ 0x3d, 0xe0, 0x74, 0x4f, 0x03, 0xf2, 0x70, 0x51,
+ 0x79, 0xf1, 0x61, 0x70, 0x15, 0x74, 0x9d, 0x23,
+ 0x89, 0xde, 0xac, 0xfd, 0xde, 0xd0, 0x1f, 0xc3,
+ 0x87, 0x44, 0x35, 0x4b, 0xe5, 0xb0, 0x60, 0xc5,
+ 0x22, 0xe4, 0x9e, 0xca, 0xeb, 0xd5, 0x3a, 0x09,
+ 0x45, 0xa4, 0xdb, 0xfa, 0x3f, 0xeb, 0x1b, 0xc7,
+ 0xc8, 0x14, 0x99, 0x51, 0x92, 0x10, 0xed, 0xed,
+ 0x28, 0xe0, 0xa1, 0xf8, 0x26, 0xcf, 0xcd, 0xcb,
+ 0x63, 0xa1, 0x3b, 0xe3, 0xdf, 0x7e, 0xfe, 0xa6,
+ 0xf0, 0x81, 0x9a, 0xbf, 0x55, 0xde, 0x54, 0xd5,
+ 0x56, 0x60, 0x98, 0x10, 0x68, 0xf4, 0x38, 0x96,
+ 0x8e, 0x6f, 0x1d, 0x44, 0x7f, 0xd6, 0x2f, 0xfe,
+ 0x55, 0xfb, 0x0c, 0x7e, 0x67, 0xe2, 0x61, 0x44,
+ 0xed, 0xf2, 0x35, 0x30, 0x5d, 0xe9, 0xc7, 0xd6,
+ 0x6d, 0xe0, 0xa0, 0xed, 0xf3, 0xfc, 0xd8, 0x3e,
+ 0x0a, 0x7b, 0xcd, 0xaf, 0x65, 0x68, 0x18, 0xc0,
+ 0xec, 0x04, 0x1c, 0x74, 0x6d, 0xe2, 0x6e, 0x79,
+ 0xd4, 0x11, 0x2b, 0x62, 0xd5, 0x27, 0xad, 0x4f,
+ 0x01, 0x59, 0x73, 0xcc, 0x6a, 0x53, 0xfb, 0x2d,
+ 0xd5, 0x4e, 0x99, 0x21, 0x65, 0x4d, 0xf5, 0x82,
+ 0xf7, 0xd8, 0x42, 0xce, 0x6f, 0x3d, 0x36, 0x47,
+ 0xf1, 0x05, 0x16, 0xe8, 0x1b, 0x6a, 0x8f, 0x93,
+ 0xf2, 0x8f, 0x37, 0x40, 0x12, 0x28, 0xa3, 0xe6,
+ 0xb9, 0x17, 0x4a, 0x1f, 0xb1, 0xd1, 0x66, 0x69,
+ 0x86, 0xc4, 0xfc, 0x97, 0xae, 0x3f, 0x8f, 0x1e,
+ 0x2b, 0xdf, 0xcd, 0xf9, 0x3c
+};
+static const u8 dec_output011[] __initconst = {
+ 0x7a, 0x57, 0xf2, 0xc7, 0x06, 0x3f, 0x50, 0x7b,
+ 0x36, 0x1a, 0x66, 0x5c, 0xb9, 0x0e, 0x5e, 0x3b,
+ 0x45, 0x60, 0xbe, 0x9a, 0x31, 0x9f, 0xff, 0x5d,
+ 0x66, 0x34, 0xb4, 0xdc, 0xfb, 0x9d, 0x8e, 0xee,
+ 0x6a, 0x33, 0xa4, 0x07, 0x3c, 0xf9, 0x4c, 0x30,
+ 0xa1, 0x24, 0x52, 0xf9, 0x50, 0x46, 0x88, 0x20,
+ 0x02, 0x32, 0x3a, 0x0e, 0x99, 0x63, 0xaf, 0x1f,
+ 0x15, 0x28, 0x2a, 0x05, 0xff, 0x57, 0x59, 0x5e,
+ 0x18, 0xa1, 0x1f, 0xd0, 0x92, 0x5c, 0x88, 0x66,
+ 0x1b, 0x00, 0x64, 0xa5, 0x93, 0x8d, 0x06, 0x46,
+ 0xb0, 0x64, 0x8b, 0x8b, 0xef, 0x99, 0x05, 0x35,
+ 0x85, 0xb3, 0xf3, 0x33, 0xbb, 0xec, 0x66, 0xb6,
+ 0x3d, 0x57, 0x42, 0xe3, 0xb4, 0xc6, 0xaa, 0xb0,
+ 0x41, 0x2a, 0xb9, 0x59, 0xa9, 0xf6, 0x3e, 0x15,
+ 0x26, 0x12, 0x03, 0x21, 0x4c, 0x74, 0x43, 0x13,
+ 0x2a, 0x03, 0x27, 0x09, 0xb4, 0xfb, 0xe7, 0xb7,
+ 0x40, 0xff, 0x5e, 0xce, 0x48, 0x9a, 0x60, 0xe3,
+ 0x8b, 0x80, 0x8c, 0x38, 0x2d, 0xcb, 0x93, 0x37,
+ 0x74, 0x05, 0x52, 0x6f, 0x73, 0x3e, 0xc3, 0xbc,
+ 0xca, 0x72, 0x0a, 0xeb, 0xf1, 0x3b, 0xa0, 0x95,
+ 0xdc, 0x8a, 0xc4, 0xa9, 0xdc, 0xca, 0x44, 0xd8,
+ 0x08, 0x63, 0x6a, 0x36, 0xd3, 0x3c, 0xb8, 0xac,
+ 0x46, 0x7d, 0xfd, 0xaa, 0xeb, 0x3e, 0x0f, 0x45,
+ 0x8f, 0x49, 0xda, 0x2b, 0xf2, 0x12, 0xbd, 0xaf,
+ 0x67, 0x8a, 0x63, 0x48, 0x4b, 0x55, 0x5f, 0x6d,
+ 0x8c, 0xb9, 0x76, 0x34, 0x84, 0xae, 0xc2, 0xfc,
+ 0x52, 0x64, 0x82, 0xf7, 0xb0, 0x06, 0xf0, 0x45,
+ 0x73, 0x12, 0x50, 0x30, 0x72, 0xea, 0x78, 0x9a,
+ 0xa8, 0xaf, 0xb5, 0xe3, 0xbb, 0x77, 0x52, 0xec,
+ 0x59, 0x84, 0xbf, 0x6b, 0x8f, 0xce, 0x86, 0x5e,
+ 0x1f, 0x23, 0xe9, 0xfb, 0x08, 0x86, 0xf7, 0x10,
+ 0xb9, 0xf2, 0x44, 0x96, 0x44, 0x63, 0xa9, 0xa8,
+ 0x78, 0x00, 0x23, 0xd6, 0xc7, 0xe7, 0x6e, 0x66,
+ 0x4f, 0xcc, 0xee, 0x15, 0xb3, 0xbd, 0x1d, 0xa0,
+ 0xe5, 0x9c, 0x1b, 0x24, 0x2c, 0x4d, 0x3c, 0x62,
+ 0x35, 0x9c, 0x88, 0x59, 0x09, 0xdd, 0x82, 0x1b,
+ 0xcf, 0x0a, 0x83, 0x6b, 0x3f, 0xae, 0x03, 0xc4,
+ 0xb4, 0xdd, 0x7e, 0x5b, 0x28, 0x76, 0x25, 0x96,
+ 0xd9, 0xc9, 0x9d, 0x5f, 0x86, 0xfa, 0xf6, 0xd7,
+ 0xd2, 0xe6, 0x76, 0x1d, 0x0f, 0xa1, 0xdc, 0x74,
+ 0x05, 0x1b, 0x1d, 0xe0, 0xcd, 0x16, 0xb0, 0xa8,
+ 0x8a, 0x34, 0x7b, 0x15, 0x11, 0x77, 0xe5, 0x7b,
+ 0x7e, 0x20, 0xf7, 0xda, 0x38, 0xda, 0xce, 0x70,
+ 0xe9, 0xf5, 0x6c, 0xd9, 0xbe, 0x0c, 0x4c, 0x95,
+ 0x4c, 0xc2, 0x9b, 0x34, 0x55, 0x55, 0xe1, 0xf3,
+ 0x46, 0x8e, 0x48, 0x74, 0x14, 0x4f, 0x9d, 0xc9,
+ 0xf5, 0xe8, 0x1a, 0xf0, 0x11, 0x4a, 0xc1, 0x8d,
+ 0xe0, 0x93, 0xa0, 0xbe, 0x09, 0x1c, 0x2b, 0x4e,
+ 0x0f, 0xb2, 0x87, 0x8b, 0x84, 0xfe, 0x92, 0x32,
+ 0x14, 0xd7, 0x93, 0xdf, 0xe7, 0x44, 0xbc, 0xc5,
+ 0xae, 0x53, 0x69, 0xd8, 0xb3, 0x79, 0x37, 0x80,
+ 0xe3, 0x17, 0x5c, 0xec, 0x53, 0x00, 0x9a, 0xe3,
+ 0x8e, 0xdc, 0x38, 0xb8, 0x66, 0xf0, 0xd3, 0xad,
+ 0x1d, 0x02, 0x96, 0x86, 0x3e, 0x9d, 0x3b, 0x5d,
+ 0xa5, 0x7f, 0x21, 0x10, 0xf1, 0x1f, 0x13, 0x20,
+ 0xf9, 0x57, 0x87, 0x20, 0xf5, 0x5f, 0xf1, 0x17,
+ 0x48, 0x0a, 0x51, 0x5a, 0xcd, 0x19, 0x03, 0xa6,
+ 0x5a, 0xd1, 0x12, 0x97, 0xe9, 0x48, 0xe2, 0x1d,
+ 0x83, 0x75, 0x50, 0xd9, 0x75, 0x7d, 0x6a, 0x82,
+ 0xa1, 0xf9, 0x4e, 0x54, 0x87, 0x89, 0xc9, 0x0c,
+ 0xb7, 0x5b, 0x6a, 0x91, 0xc1, 0x9c, 0xb2, 0xa9,
+ 0xdc, 0x9a, 0xa4, 0x49, 0x0a, 0x6d, 0x0d, 0xbb,
+ 0xde, 0x86, 0x44, 0xdd, 0x5d, 0x89, 0x2b, 0x96,
+ 0x0f, 0x23, 0x95, 0xad, 0xcc, 0xa2, 0xb3, 0xb9,
+ 0x7e, 0x74, 0x38, 0xba, 0x9f, 0x73, 0xae, 0x5f,
+ 0xf8, 0x68, 0xa2, 0xe0, 0xa9, 0xce, 0xbd, 0x40,
+ 0xd4, 0x4c, 0x6b, 0xd2, 0x56, 0x62, 0xb0, 0xcc,
+ 0x63, 0x7e, 0x5b, 0xd3, 0xae, 0xd1, 0x75, 0xce,
+ 0xbb, 0xb4, 0x5b, 0xa8, 0xf8, 0xb4, 0xac, 0x71,
+ 0x75, 0xaa, 0xc9, 0x9f, 0xbb, 0x6c, 0xad, 0x0f,
+ 0x55, 0x5d, 0xe8, 0x85, 0x7d, 0xf9, 0x21, 0x35,
+ 0xea, 0x92, 0x85, 0x2b, 0x00, 0xec, 0x84, 0x90,
+ 0x0a, 0x63, 0x96, 0xe4, 0x6b, 0xa9, 0x77, 0xb8,
+ 0x91, 0xf8, 0x46, 0x15, 0x72, 0x63, 0x70, 0x01,
+ 0x40, 0xa3, 0xa5, 0x76, 0x62, 0x2b, 0xbf, 0xf1,
+ 0xe5, 0x8d, 0x9f, 0xa3, 0xfa, 0x9b, 0x03, 0xbe,
+ 0xfe, 0x65, 0x6f, 0xa2, 0x29, 0x0d, 0x54, 0xb4,
+ 0x71, 0xce, 0xa9, 0xd6, 0x3d, 0x88, 0xf9, 0xaf,
+ 0x6b, 0xa8, 0x9e, 0xf4, 0x16, 0x96, 0x36, 0xb9,
+ 0x00, 0xdc, 0x10, 0xab, 0xb5, 0x08, 0x31, 0x1f,
+ 0x00, 0xb1, 0x3c, 0xd9, 0x38, 0x3e, 0xc6, 0x04,
+ 0xa7, 0x4e, 0xe8, 0xae, 0xed, 0x98, 0xc2, 0xf7,
+ 0xb9, 0x00, 0x5f, 0x8c, 0x60, 0xd1, 0xe5, 0x15,
+ 0xf7, 0xae, 0x1e, 0x84, 0x88, 0xd1, 0xf6, 0xbc,
+ 0x3a, 0x89, 0x35, 0x22, 0x83, 0x7c, 0xca, 0xf0,
+ 0x33, 0x82, 0x4c, 0x79, 0x3c, 0xfd, 0xb1, 0xae,
+ 0x52, 0x62, 0x55, 0xd2, 0x41, 0x60, 0xc6, 0xbb,
+ 0xfa, 0x0e, 0x59, 0xd6, 0xa8, 0xfe, 0x5d, 0xed,
+ 0x47, 0x3d, 0xe0, 0xea, 0x1f, 0x6e, 0x43, 0x51,
+ 0xec, 0x10, 0x52, 0x56, 0x77, 0x42, 0x6b, 0x52,
+ 0x87, 0xd8, 0xec, 0xe0, 0xaa, 0x76, 0xa5, 0x84,
+ 0x2a, 0x22, 0x24, 0xfd, 0x92, 0x40, 0x88, 0xd5,
+ 0x85, 0x1c, 0x1f, 0x6b, 0x47, 0xa0, 0xc4, 0xe4,
+ 0xef, 0xf4, 0xea, 0xd7, 0x59, 0xac, 0x2a, 0x9e,
+ 0x8c, 0xfa, 0x1f, 0x42, 0x08, 0xfe, 0x4f, 0x74,
+ 0xa0, 0x26, 0xf5, 0xb3, 0x84, 0xf6, 0x58, 0x5f,
+ 0x26, 0x66, 0x3e, 0xd7, 0xe4, 0x22, 0x91, 0x13,
+ 0xc8, 0xac, 0x25, 0x96, 0x23, 0xd8, 0x09, 0xea,
+ 0x45, 0x75, 0x23, 0xb8, 0x5f, 0xc2, 0x90, 0x8b,
+ 0x09, 0xc4, 0xfc, 0x47, 0x6c, 0x6d, 0x0a, 0xef,
+ 0x69, 0xa4, 0x38, 0x19, 0xcf, 0x7d, 0xf9, 0x09,
+ 0x73, 0x9b, 0x60, 0x5a, 0xf7, 0x37, 0xb5, 0xfe,
+ 0x9f, 0xe3, 0x2b, 0x4c, 0x0d, 0x6e, 0x19, 0xf1,
+ 0xd6, 0xc0, 0x70, 0xf3, 0x9d, 0x22, 0x3c, 0xf9,
+ 0x49, 0xce, 0x30, 0x8e, 0x44, 0xb5, 0x76, 0x15,
+ 0x8f, 0x52, 0xfd, 0xa5, 0x04, 0xb8, 0x55, 0x6a,
+ 0x36, 0x59, 0x7c, 0xc4, 0x48, 0xb8, 0xd7, 0xab,
+ 0x05, 0x66, 0xe9, 0x5e, 0x21, 0x6f, 0x6b, 0x36,
+ 0x29, 0xbb, 0xe9, 0xe3, 0xa2, 0x9a, 0xa8, 0xcd,
+ 0x55, 0x25, 0x11, 0xba, 0x5a, 0x58, 0xa0, 0xde,
+ 0xae, 0x19, 0x2a, 0x48, 0x5a, 0xff, 0x36, 0xcd,
+ 0x6d, 0x16, 0x7a, 0x73, 0x38, 0x46, 0xe5, 0x47,
+ 0x59, 0xc8, 0xa2, 0xf6, 0xe2, 0x6c, 0x83, 0xc5,
+ 0x36, 0x2c, 0x83, 0x7d, 0xb4, 0x01, 0x05, 0x69,
+ 0xe7, 0xaf, 0x5c, 0xc4, 0x64, 0x82, 0x12, 0x21,
+ 0xef, 0xf7, 0xd1, 0x7d, 0xb8, 0x8d, 0x8c, 0x98,
+ 0x7c, 0x5f, 0x7d, 0x92, 0x88, 0xb9, 0x94, 0x07,
+ 0x9c, 0xd8, 0xe9, 0x9c, 0x17, 0x38, 0xe3, 0x57,
+ 0x6c, 0xe0, 0xdc, 0xa5, 0x92, 0x42, 0xb3, 0xbd,
+ 0x50, 0xa2, 0x7e, 0xb5, 0xb1, 0x52, 0x72, 0x03,
+ 0x97, 0xd8, 0xaa, 0x9a, 0x1e, 0x75, 0x41, 0x11,
+ 0xa3, 0x4f, 0xcc, 0xd4, 0xe3, 0x73, 0xad, 0x96,
+ 0xdc, 0x47, 0x41, 0x9f, 0xb0, 0xbe, 0x79, 0x91,
+ 0xf5, 0xb6, 0x18, 0xfe, 0xc2, 0x83, 0x18, 0x7d,
+ 0x73, 0xd9, 0x4f, 0x83, 0x84, 0x03, 0xb3, 0xf0,
+ 0x77, 0x66, 0x3d, 0x83, 0x63, 0x2e, 0x2c, 0xf9,
+ 0xdd, 0xa6, 0x1f, 0x89, 0x82, 0xb8, 0x23, 0x42,
+ 0xeb, 0xe2, 0xca, 0x70, 0x82, 0x61, 0x41, 0x0a,
+ 0x6d, 0x5f, 0x75, 0xc5, 0xe2, 0xc4, 0x91, 0x18,
+ 0x44, 0x22, 0xfa, 0x34, 0x10, 0xf5, 0x20, 0xdc,
+ 0xb7, 0xdd, 0x2a, 0x20, 0x77, 0xf5, 0xf9, 0xce,
+ 0xdb, 0xa0, 0x0a, 0x52, 0x2a, 0x4e, 0xdd, 0xcc,
+ 0x97, 0xdf, 0x05, 0xe4, 0x5e, 0xb7, 0xaa, 0xf0,
+ 0xe2, 0x80, 0xff, 0xba, 0x1a, 0x0f, 0xac, 0xdf,
+ 0x02, 0x32, 0xe6, 0xf7, 0xc7, 0x17, 0x13, 0xb7,
+ 0xfc, 0x98, 0x48, 0x8c, 0x0d, 0x82, 0xc9, 0x80,
+ 0x7a, 0xe2, 0x0a, 0xc5, 0xb4, 0xde, 0x7c, 0x3c,
+ 0x79, 0x81, 0x0e, 0x28, 0x65, 0x79, 0x67, 0x82,
+ 0x69, 0x44, 0x66, 0x09, 0xf7, 0x16, 0x1a, 0xf9,
+ 0x7d, 0x80, 0xa1, 0x79, 0x14, 0xa9, 0xc8, 0x20,
+ 0xfb, 0xa2, 0x46, 0xbe, 0x08, 0x35, 0x17, 0x58,
+ 0xc1, 0x1a, 0xda, 0x2a, 0x6b, 0x2e, 0x1e, 0xe6,
+ 0x27, 0x55, 0x7b, 0x19, 0xe2, 0xfb, 0x64, 0xfc,
+ 0x5e, 0x15, 0x54, 0x3c, 0xe7, 0xc2, 0x11, 0x50,
+ 0x30, 0xb8, 0x72, 0x03, 0x0b, 0x1a, 0x9f, 0x86,
+ 0x27, 0x11, 0x5c, 0x06, 0x2b, 0xbd, 0x75, 0x1a,
+ 0x0a, 0xda, 0x01, 0xfa, 0x5c, 0x4a, 0xc1, 0x80,
+ 0x3a, 0x6e, 0x30, 0xc8, 0x2c, 0xeb, 0x56, 0xec,
+ 0x89, 0xfa, 0x35, 0x7b, 0xb2, 0xf0, 0x97, 0x08,
+ 0x86, 0x53, 0xbe, 0xbd, 0x40, 0x41, 0x38, 0x1c,
+ 0xb4, 0x8b, 0x79, 0x2e, 0x18, 0x96, 0x94, 0xde,
+ 0xe8, 0xca, 0xe5, 0x9f, 0x92, 0x9f, 0x15, 0x5d,
+ 0x56, 0x60, 0x5c, 0x09, 0xf9, 0x16, 0xf4, 0x17,
+ 0x0f, 0xf6, 0x4c, 0xda, 0xe6, 0x67, 0x89, 0x9f,
+ 0xca, 0x6c, 0xe7, 0x9b, 0x04, 0x62, 0x0e, 0x26,
+ 0xa6, 0x52, 0xbd, 0x29, 0xff, 0xc7, 0xa4, 0x96,
+ 0xe6, 0x6a, 0x02, 0xa5, 0x2e, 0x7b, 0xfe, 0x97,
+ 0x68, 0x3e, 0x2e, 0x5f, 0x3b, 0x0f, 0x36, 0xd6,
+ 0x98, 0x19, 0x59, 0x48, 0xd2, 0xc6, 0xe1, 0x55,
+ 0x1a, 0x6e, 0xd6, 0xed, 0x2c, 0xba, 0xc3, 0x9e,
+ 0x64, 0xc9, 0x95, 0x86, 0x35, 0x5e, 0x3e, 0x88,
+ 0x69, 0x99, 0x4b, 0xee, 0xbe, 0x9a, 0x99, 0xb5,
+ 0x6e, 0x58, 0xae, 0xdd, 0x22, 0xdb, 0xdd, 0x6b,
+ 0xfc, 0xaf, 0x90, 0xa3, 0x3d, 0xa4, 0xc1, 0x15,
+ 0x92, 0x18, 0x8d, 0xd2, 0x4b, 0x7b, 0x06, 0xd1,
+ 0x37, 0xb5, 0xe2, 0x7c, 0x2c, 0xf0, 0x25, 0xe4,
+ 0x94, 0x2a, 0xbd, 0xe3, 0x82, 0x70, 0x78, 0xa3,
+ 0x82, 0x10, 0x5a, 0x90, 0xd7, 0xa4, 0xfa, 0xaf,
+ 0x1a, 0x88, 0x59, 0xdc, 0x74, 0x12, 0xb4, 0x8e,
+ 0xd7, 0x19, 0x46, 0xf4, 0x84, 0x69, 0x9f, 0xbb,
+ 0x70, 0xa8, 0x4c, 0x52, 0x81, 0xa9, 0xff, 0x76,
+ 0x1c, 0xae, 0xd8, 0x11, 0x3d, 0x7f, 0x7d, 0xc5,
+ 0x12, 0x59, 0x28, 0x18, 0xc2, 0xa2, 0xb7, 0x1c,
+ 0x88, 0xf8, 0xd6, 0x1b, 0xa6, 0x7d, 0x9e, 0xde,
+ 0x29, 0xf8, 0xed, 0xff, 0xeb, 0x92, 0x24, 0x4f,
+ 0x05, 0xaa, 0xd9, 0x49, 0xba, 0x87, 0x59, 0x51,
+ 0xc9, 0x20, 0x5c, 0x9b, 0x74, 0xcf, 0x03, 0xd9,
+ 0x2d, 0x34, 0xc7, 0x5b, 0xa5, 0x40, 0xb2, 0x99,
+ 0xf5, 0xcb, 0xb4, 0xf6, 0xb7, 0x72, 0x4a, 0xd6,
+ 0xbd, 0xb0, 0xf3, 0x93, 0xe0, 0x1b, 0xa8, 0x04,
+ 0x1e, 0x35, 0xd4, 0x80, 0x20, 0xf4, 0x9c, 0x31,
+ 0x6b, 0x45, 0xb9, 0x15, 0xb0, 0x5e, 0xdd, 0x0a,
+ 0x33, 0x9c, 0x83, 0xcd, 0x58, 0x89, 0x50, 0x56,
+ 0xbb, 0x81, 0x00, 0x91, 0x32, 0xf3, 0x1b, 0x3e,
+ 0xcf, 0x45, 0xe1, 0xf9, 0xe1, 0x2c, 0x26, 0x78,
+ 0x93, 0x9a, 0x60, 0x46, 0xc9, 0xb5, 0x5e, 0x6a,
+ 0x28, 0x92, 0x87, 0x3f, 0x63, 0x7b, 0xdb, 0xf7,
+ 0xd0, 0x13, 0x9d, 0x32, 0x40, 0x5e, 0xcf, 0xfb,
+ 0x79, 0x68, 0x47, 0x4c, 0xfd, 0x01, 0x17, 0xe6,
+ 0x97, 0x93, 0x78, 0xbb, 0xa6, 0x27, 0xa3, 0xe8,
+ 0x1a, 0xe8, 0x94, 0x55, 0x7d, 0x08, 0xe5, 0xdc,
+ 0x66, 0xa3, 0x69, 0xc8, 0xca, 0xc5, 0xa1, 0x84,
+ 0x55, 0xde, 0x08, 0x91, 0x16, 0x3a, 0x0c, 0x86,
+ 0xab, 0x27, 0x2b, 0x64, 0x34, 0x02, 0x6c, 0x76,
+ 0x8b, 0xc6, 0xaf, 0xcc, 0xe1, 0xd6, 0x8c, 0x2a,
+ 0x18, 0x3d, 0xa6, 0x1b, 0x37, 0x75, 0x45, 0x73,
+ 0xc2, 0x75, 0xd7, 0x53, 0x78, 0x3a, 0xd6, 0xe8,
+ 0x29, 0xd2, 0x4a, 0xa8, 0x1e, 0x82, 0xf6, 0xb6,
+ 0x81, 0xde, 0x21, 0xed, 0x2b, 0x56, 0xbb, 0xf2,
+ 0xd0, 0x57, 0xc1, 0x7c, 0xd2, 0x6a, 0xd2, 0x56,
+ 0xf5, 0x13, 0x5f, 0x1c, 0x6a, 0x0b, 0x74, 0xfb,
+ 0xe9, 0xfe, 0x9e, 0xea, 0x95, 0xb2, 0x46, 0xab,
+ 0x0a, 0xfc, 0xfd, 0xf3, 0xbb, 0x04, 0x2b, 0x76,
+ 0x1b, 0xa4, 0x74, 0xb0, 0xc1, 0x78, 0xc3, 0x69,
+ 0xe2, 0xb0, 0x01, 0xe1, 0xde, 0x32, 0x4c, 0x8d,
+ 0x1a, 0xb3, 0x38, 0x08, 0xd5, 0xfc, 0x1f, 0xdc,
+ 0x0e, 0x2c, 0x9c, 0xb1, 0xa1, 0x63, 0x17, 0x22,
+ 0xf5, 0x6c, 0x93, 0x70, 0x74, 0x00, 0xf8, 0x39,
+ 0x01, 0x94, 0xd1, 0x32, 0x23, 0x56, 0x5d, 0xa6,
+ 0x02, 0x76, 0x76, 0x93, 0xce, 0x2f, 0x19, 0xe9,
+ 0x17, 0x52, 0xae, 0x6e, 0x2c, 0x6d, 0x61, 0x7f,
+ 0x3b, 0xaa, 0xe0, 0x52, 0x85, 0xc5, 0x65, 0xc1,
+ 0xbb, 0x8e, 0x5b, 0x21, 0xd5, 0xc9, 0x78, 0x83,
+ 0x07, 0x97, 0x4c, 0x62, 0x61, 0x41, 0xd4, 0xfc,
+ 0xc9, 0x39, 0xe3, 0x9b, 0xd0, 0xcc, 0x75, 0xc4,
+ 0x97, 0xe6, 0xdd, 0x2a, 0x5f, 0xa6, 0xe8, 0x59,
+ 0x6c, 0x98, 0xb9, 0x02, 0xe2, 0xa2, 0xd6, 0x68,
+ 0xee, 0x3b, 0x1d, 0xe3, 0x4d, 0x5b, 0x30, 0xef,
+ 0x03, 0xf2, 0xeb, 0x18, 0x57, 0x36, 0xe8, 0xa1,
+ 0xf4, 0x47, 0xfb, 0xcb, 0x8f, 0xcb, 0xc8, 0xf3,
+ 0x4f, 0x74, 0x9d, 0x9d, 0xb1, 0x8d, 0x14, 0x44,
+ 0xd9, 0x19, 0xb4, 0x54, 0x4f, 0x75, 0x19, 0x09,
+ 0xa0, 0x75, 0xbc, 0x3b, 0x82, 0xc6, 0x3f, 0xb8,
+ 0x83, 0x19, 0x6e, 0xd6, 0x37, 0xfe, 0x6e, 0x8a,
+ 0x4e, 0xe0, 0x4a, 0xab, 0x7b, 0xc8, 0xb4, 0x1d,
+ 0xf4, 0xed, 0x27, 0x03, 0x65, 0xa2, 0xa1, 0xae,
+ 0x11, 0xe7, 0x98, 0x78, 0x48, 0x91, 0xd2, 0xd2,
+ 0xd4, 0x23, 0x78, 0x50, 0xb1, 0x5b, 0x85, 0x10,
+ 0x8d, 0xca, 0x5f, 0x0f, 0x71, 0xae, 0x72, 0x9a,
+ 0xf6, 0x25, 0x19, 0x60, 0x06, 0xf7, 0x10, 0x34,
+ 0x18, 0x0d, 0xc9, 0x9f, 0x7b, 0x0c, 0x9b, 0x8f,
+ 0x91, 0x1b, 0x9f, 0xcd, 0x10, 0xee, 0x75, 0xf9,
+ 0x97, 0x66, 0xfc, 0x4d, 0x33, 0x6e, 0x28, 0x2b,
+ 0x92, 0x85, 0x4f, 0xab, 0x43, 0x8d, 0x8f, 0x7d,
+ 0x86, 0xa7, 0xc7, 0xd8, 0xd3, 0x0b, 0x8b, 0x57,
+ 0xb6, 0x1d, 0x95, 0x0d, 0xe9, 0xbc, 0xd9, 0x03,
+ 0xd9, 0x10, 0x19, 0xc3, 0x46, 0x63, 0x55, 0x87,
+ 0x61, 0x79, 0x6c, 0x95, 0x0e, 0x9c, 0xdd, 0xca,
+ 0xc3, 0xf3, 0x64, 0xf0, 0x7d, 0x76, 0xb7, 0x53,
+ 0x67, 0x2b, 0x1e, 0x44, 0x56, 0x81, 0xea, 0x8f,
+ 0x5c, 0x42, 0x16, 0xb8, 0x28, 0xeb, 0x1b, 0x61,
+ 0x10, 0x1e, 0xbf, 0xec, 0xa8
+};
+static const u8 dec_assoc011[] __initconst = {
+ 0xd6, 0x31, 0xda, 0x5d, 0x42, 0x5e, 0xd7
+};
+static const u8 dec_nonce011[] __initconst = {
+ 0xfd, 0x87, 0xd4, 0xd8, 0x62, 0xfd, 0xec, 0xaa
+};
+static const u8 dec_key011[] __initconst = {
+ 0x35, 0x4e, 0xb5, 0x70, 0x50, 0x42, 0x8a, 0x85,
+ 0xf2, 0xfb, 0xed, 0x7b, 0xd0, 0x9e, 0x97, 0xca,
+ 0xfa, 0x98, 0x66, 0x63, 0xee, 0x37, 0xcc, 0x52,
+ 0xfe, 0xd1, 0xdf, 0x95, 0x15, 0x34, 0x29, 0x38
+};
+
+static const u8 dec_input012[] __initconst = {
+ 0x52, 0x34, 0xb3, 0x65, 0x3b, 0xb7, 0xe5, 0xd3,
+ 0xab, 0x49, 0x17, 0x60, 0xd2, 0x52, 0x56, 0xdf,
+ 0xdf, 0x34, 0x56, 0x82, 0xe2, 0xbe, 0xe5, 0xe1,
+ 0x28, 0xd1, 0x4e, 0x5f, 0x4f, 0x01, 0x7d, 0x3f,
+ 0x99, 0x6b, 0x30, 0x6e, 0x1a, 0x7c, 0x4c, 0x8e,
+ 0x62, 0x81, 0xae, 0x86, 0x3f, 0x6b, 0xd0, 0xb5,
+ 0xa9, 0xcf, 0x50, 0xf1, 0x02, 0x12, 0xa0, 0x0b,
+ 0x24, 0xe9, 0xe6, 0x72, 0x89, 0x2c, 0x52, 0x1b,
+ 0x34, 0x38, 0xf8, 0x75, 0x5f, 0xa0, 0x74, 0xe2,
+ 0x99, 0xdd, 0xa6, 0x4b, 0x14, 0x50, 0x4e, 0xf1,
+ 0xbe, 0xd6, 0x9e, 0xdb, 0xb2, 0x24, 0x27, 0x74,
+ 0x12, 0x4a, 0x78, 0x78, 0x17, 0xa5, 0x58, 0x8e,
+ 0x2f, 0xf9, 0xf4, 0x8d, 0xee, 0x03, 0x88, 0xae,
+ 0xb8, 0x29, 0xa1, 0x2f, 0x4b, 0xee, 0x92, 0xbd,
+ 0x87, 0xb3, 0xce, 0x34, 0x21, 0x57, 0x46, 0x04,
+ 0x49, 0x0c, 0x80, 0xf2, 0x01, 0x13, 0xa1, 0x55,
+ 0xb3, 0xff, 0x44, 0x30, 0x3c, 0x1c, 0xd0, 0xef,
+ 0xbc, 0x18, 0x74, 0x26, 0xad, 0x41, 0x5b, 0x5b,
+ 0x3e, 0x9a, 0x7a, 0x46, 0x4f, 0x16, 0xd6, 0x74,
+ 0x5a, 0xb7, 0x3a, 0x28, 0x31, 0xd8, 0xae, 0x26,
+ 0xac, 0x50, 0x53, 0x86, 0xf2, 0x56, 0xd7, 0x3f,
+ 0x29, 0xbc, 0x45, 0x68, 0x8e, 0xcb, 0x98, 0x64,
+ 0xdd, 0xc9, 0xba, 0xb8, 0x4b, 0x7b, 0x82, 0xdd,
+ 0x14, 0xa7, 0xcb, 0x71, 0x72, 0x00, 0x5c, 0xad,
+ 0x7b, 0x6a, 0x89, 0xa4, 0x3d, 0xbf, 0xb5, 0x4b,
+ 0x3e, 0x7c, 0x5a, 0xcf, 0xb8, 0xa1, 0xc5, 0x6e,
+ 0xc8, 0xb6, 0x31, 0x57, 0x7b, 0xdf, 0xa5, 0x7e,
+ 0xb1, 0xd6, 0x42, 0x2a, 0x31, 0x36, 0xd1, 0xd0,
+ 0x3f, 0x7a, 0xe5, 0x94, 0xd6, 0x36, 0xa0, 0x6f,
+ 0xb7, 0x40, 0x7d, 0x37, 0xc6, 0x55, 0x7c, 0x50,
+ 0x40, 0x6d, 0x29, 0x89, 0xe3, 0x5a, 0xae, 0x97,
+ 0xe7, 0x44, 0x49, 0x6e, 0xbd, 0x81, 0x3d, 0x03,
+ 0x93, 0x06, 0x12, 0x06, 0xe2, 0x41, 0x12, 0x4a,
+ 0xf1, 0x6a, 0xa4, 0x58, 0xa2, 0xfb, 0xd2, 0x15,
+ 0xba, 0xc9, 0x79, 0xc9, 0xce, 0x5e, 0x13, 0xbb,
+ 0xf1, 0x09, 0x04, 0xcc, 0xfd, 0xe8, 0x51, 0x34,
+ 0x6a, 0xe8, 0x61, 0x88, 0xda, 0xed, 0x01, 0x47,
+ 0x84, 0xf5, 0x73, 0x25, 0xf9, 0x1c, 0x42, 0x86,
+ 0x07, 0xf3, 0x5b, 0x1a, 0x01, 0xb3, 0xeb, 0x24,
+ 0x32, 0x8d, 0xf6, 0xed, 0x7c, 0x4b, 0xeb, 0x3c,
+ 0x36, 0x42, 0x28, 0xdf, 0xdf, 0xb6, 0xbe, 0xd9,
+ 0x8c, 0x52, 0xd3, 0x2b, 0x08, 0x90, 0x8c, 0xe7,
+ 0x98, 0x31, 0xe2, 0x32, 0x8e, 0xfc, 0x11, 0x48,
+ 0x00, 0xa8, 0x6a, 0x42, 0x4a, 0x02, 0xc6, 0x4b,
+ 0x09, 0xf1, 0xe3, 0x49, 0xf3, 0x45, 0x1f, 0x0e,
+ 0xbc, 0x56, 0xe2, 0xe4, 0xdf, 0xfb, 0xeb, 0x61,
+ 0xfa, 0x24, 0xc1, 0x63, 0x75, 0xbb, 0x47, 0x75,
+ 0xaf, 0xe1, 0x53, 0x16, 0x96, 0x21, 0x85, 0x26,
+ 0x11, 0xb3, 0x76, 0xe3, 0x23, 0xa1, 0x6b, 0x74,
+ 0x37, 0xd0, 0xde, 0x06, 0x90, 0x71, 0x5d, 0x43,
+ 0x88, 0x9b, 0x00, 0x54, 0xa6, 0x75, 0x2f, 0xa1,
+ 0xc2, 0x0b, 0x73, 0x20, 0x1d, 0xb6, 0x21, 0x79,
+ 0x57, 0x3f, 0xfa, 0x09, 0xbe, 0x8a, 0x33, 0xc3,
+ 0x52, 0xf0, 0x1d, 0x82, 0x31, 0xd1, 0x55, 0xb5,
+ 0x6c, 0x99, 0x25, 0xcf, 0x5c, 0x32, 0xce, 0xe9,
+ 0x0d, 0xfa, 0x69, 0x2c, 0xd5, 0x0d, 0xc5, 0x6d,
+ 0x86, 0xd0, 0x0c, 0x3b, 0x06, 0x50, 0x79, 0xe8,
+ 0xc3, 0xae, 0x04, 0xe6, 0xcd, 0x51, 0xe4, 0x26,
+ 0x9b, 0x4f, 0x7e, 0xa6, 0x0f, 0xab, 0xd8, 0xe5,
+ 0xde, 0xa9, 0x00, 0x95, 0xbe, 0xa3, 0x9d, 0x5d,
+ 0xb2, 0x09, 0x70, 0x18, 0x1c, 0xf0, 0xac, 0x29,
+ 0x23, 0x02, 0x29, 0x28, 0xd2, 0x74, 0x35, 0x57,
+ 0x62, 0x0f, 0x24, 0xea, 0x5e, 0x33, 0xc2, 0x92,
+ 0xf3, 0x78, 0x4d, 0x30, 0x1e, 0xa1, 0x99, 0xa9,
+ 0x82, 0xb0, 0x42, 0x31, 0x8d, 0xad, 0x8a, 0xbc,
+ 0xfc, 0xd4, 0x57, 0x47, 0x3e, 0xb4, 0x50, 0xdd,
+ 0x6e, 0x2c, 0x80, 0x4d, 0x22, 0xf1, 0xfb, 0x57,
+ 0xc4, 0xdd, 0x17, 0xe1, 0x8a, 0x36, 0x4a, 0xb3,
+ 0x37, 0xca, 0xc9, 0x4e, 0xab, 0xd5, 0x69, 0xc4,
+ 0xf4, 0xbc, 0x0b, 0x3b, 0x44, 0x4b, 0x29, 0x9c,
+ 0xee, 0xd4, 0x35, 0x22, 0x21, 0xb0, 0x1f, 0x27,
+ 0x64, 0xa8, 0x51, 0x1b, 0xf0, 0x9f, 0x19, 0x5c,
+ 0xfb, 0x5a, 0x64, 0x74, 0x70, 0x45, 0x09, 0xf5,
+ 0x64, 0xfe, 0x1a, 0x2d, 0xc9, 0x14, 0x04, 0x14,
+ 0xcf, 0xd5, 0x7d, 0x60, 0xaf, 0x94, 0x39, 0x94,
+ 0xe2, 0x7d, 0x79, 0x82, 0xd0, 0x65, 0x3b, 0x6b,
+ 0x9c, 0x19, 0x84, 0xb4, 0x6d, 0xb3, 0x0c, 0x99,
+ 0xc0, 0x56, 0xa8, 0xbd, 0x73, 0xce, 0x05, 0x84,
+ 0x3e, 0x30, 0xaa, 0xc4, 0x9b, 0x1b, 0x04, 0x2a,
+ 0x9f, 0xd7, 0x43, 0x2b, 0x23, 0xdf, 0xbf, 0xaa,
+ 0xd5, 0xc2, 0x43, 0x2d, 0x70, 0xab, 0xdc, 0x75,
+ 0xad, 0xac, 0xf7, 0xc0, 0xbe, 0x67, 0xb2, 0x74,
+ 0xed, 0x67, 0x10, 0x4a, 0x92, 0x60, 0xc1, 0x40,
+ 0x50, 0x19, 0x8a, 0x8a, 0x8c, 0x09, 0x0e, 0x72,
+ 0xe1, 0x73, 0x5e, 0xe8, 0x41, 0x85, 0x63, 0x9f,
+ 0x3f, 0xd7, 0x7d, 0xc4, 0xfb, 0x22, 0x5d, 0x92,
+ 0x6c, 0xb3, 0x1e, 0xe2, 0x50, 0x2f, 0x82, 0xa8,
+ 0x28, 0xc0, 0xb5, 0xd7, 0x5f, 0x68, 0x0d, 0x2c,
+ 0x2d, 0xaf, 0x7e, 0xfa, 0x2e, 0x08, 0x0f, 0x1f,
+ 0x70, 0x9f, 0xe9, 0x19, 0x72, 0x55, 0xf8, 0xfb,
+ 0x51, 0xd2, 0x33, 0x5d, 0xa0, 0xd3, 0x2b, 0x0a,
+ 0x6c, 0xbc, 0x4e, 0xcf, 0x36, 0x4d, 0xdc, 0x3b,
+ 0xe9, 0x3e, 0x81, 0x7c, 0x61, 0xdb, 0x20, 0x2d,
+ 0x3a, 0xc3, 0xb3, 0x0c, 0x1e, 0x00, 0xb9, 0x7c,
+ 0xf5, 0xca, 0x10, 0x5f, 0x3a, 0x71, 0xb3, 0xe4,
+ 0x20, 0xdb, 0x0c, 0x2a, 0x98, 0x63, 0x45, 0x00,
+ 0x58, 0xf6, 0x68, 0xe4, 0x0b, 0xda, 0x13, 0x3b,
+ 0x60, 0x5c, 0x76, 0xdb, 0xb9, 0x97, 0x71, 0xe4,
+ 0xd9, 0xb7, 0xdb, 0xbd, 0x68, 0xc7, 0x84, 0x84,
+ 0xaa, 0x7c, 0x68, 0x62, 0x5e, 0x16, 0xfc, 0xba,
+ 0x72, 0xaa, 0x9a, 0xa9, 0xeb, 0x7c, 0x75, 0x47,
+ 0x97, 0x7e, 0xad, 0xe2, 0xd9, 0x91, 0xe8, 0xe4,
+ 0xa5, 0x31, 0xd7, 0x01, 0x8e, 0xa2, 0x11, 0x88,
+ 0x95, 0xb9, 0xf2, 0x9b, 0xd3, 0x7f, 0x1b, 0x81,
+ 0x22, 0xf7, 0x98, 0x60, 0x0a, 0x64, 0xa6, 0xc1,
+ 0xf6, 0x49, 0xc7, 0xe3, 0x07, 0x4d, 0x94, 0x7a,
+ 0xcf, 0x6e, 0x68, 0x0c, 0x1b, 0x3f, 0x6e, 0x2e,
+ 0xee, 0x92, 0xfa, 0x52, 0xb3, 0x59, 0xf8, 0xf1,
+ 0x8f, 0x6a, 0x66, 0xa3, 0x82, 0x76, 0x4a, 0x07,
+ 0x1a, 0xc7, 0xdd, 0xf5, 0xda, 0x9c, 0x3c, 0x24,
+ 0xbf, 0xfd, 0x42, 0xa1, 0x10, 0x64, 0x6a, 0x0f,
+ 0x89, 0xee, 0x36, 0xa5, 0xce, 0x99, 0x48, 0x6a,
+ 0xf0, 0x9f, 0x9e, 0x69, 0xa4, 0x40, 0x20, 0xe9,
+ 0x16, 0x15, 0xf7, 0xdb, 0x75, 0x02, 0xcb, 0xe9,
+ 0x73, 0x8b, 0x3b, 0x49, 0x2f, 0xf0, 0xaf, 0x51,
+ 0x06, 0x5c, 0xdf, 0x27, 0x27, 0x49, 0x6a, 0xd1,
+ 0xcc, 0xc7, 0xb5, 0x63, 0xb5, 0xfc, 0xb8, 0x5c,
+ 0x87, 0x7f, 0x84, 0xb4, 0xcc, 0x14, 0xa9, 0x53,
+ 0xda, 0xa4, 0x56, 0xf8, 0xb6, 0x1b, 0xcc, 0x40,
+ 0x27, 0x52, 0x06, 0x5a, 0x13, 0x81, 0xd7, 0x3a,
+ 0xd4, 0x3b, 0xfb, 0x49, 0x65, 0x31, 0x33, 0xb2,
+ 0xfa, 0xcd, 0xad, 0x58, 0x4e, 0x2b, 0xae, 0xd2,
+ 0x20, 0xfb, 0x1a, 0x48, 0xb4, 0x3f, 0x9a, 0xd8,
+ 0x7a, 0x35, 0x4a, 0xc8, 0xee, 0x88, 0x5e, 0x07,
+ 0x66, 0x54, 0xb9, 0xec, 0x9f, 0xa3, 0xe3, 0xb9,
+ 0x37, 0xaa, 0x49, 0x76, 0x31, 0xda, 0x74, 0x2d,
+ 0x3c, 0xa4, 0x65, 0x10, 0x32, 0x38, 0xf0, 0xde,
+ 0xd3, 0x99, 0x17, 0xaa, 0x71, 0xaa, 0x8f, 0x0f,
+ 0x8c, 0xaf, 0xa2, 0xf8, 0x5d, 0x64, 0xba, 0x1d,
+ 0xa3, 0xef, 0x96, 0x73, 0xe8, 0xa1, 0x02, 0x8d,
+ 0x0c, 0x6d, 0xb8, 0x06, 0x90, 0xb8, 0x08, 0x56,
+ 0x2c, 0xa7, 0x06, 0xc9, 0xc2, 0x38, 0xdb, 0x7c,
+ 0x63, 0xb1, 0x57, 0x8e, 0xea, 0x7c, 0x79, 0xf3,
+ 0x49, 0x1d, 0xfe, 0x9f, 0xf3, 0x6e, 0xb1, 0x1d,
+ 0xba, 0x19, 0x80, 0x1a, 0x0a, 0xd3, 0xb0, 0x26,
+ 0x21, 0x40, 0xb1, 0x7c, 0xf9, 0x4d, 0x8d, 0x10,
+ 0xc1, 0x7e, 0xf4, 0xf6, 0x3c, 0xa8, 0xfd, 0x7c,
+ 0xa3, 0x92, 0xb2, 0x0f, 0xaa, 0xcc, 0xa6, 0x11,
+ 0xfe, 0x04, 0xe3, 0xd1, 0x7a, 0x32, 0x89, 0xdf,
+ 0x0d, 0xc4, 0x8f, 0x79, 0x6b, 0xca, 0x16, 0x7c,
+ 0x6e, 0xf9, 0xad, 0x0f, 0xf6, 0xfe, 0x27, 0xdb,
+ 0xc4, 0x13, 0x70, 0xf1, 0x62, 0x1a, 0x4f, 0x79,
+ 0x40, 0xc9, 0x9b, 0x8b, 0x21, 0xea, 0x84, 0xfa,
+ 0xf5, 0xf1, 0x89, 0xce, 0xb7, 0x55, 0x0a, 0x80,
+ 0x39, 0x2f, 0x55, 0x36, 0x16, 0x9c, 0x7b, 0x08,
+ 0xbd, 0x87, 0x0d, 0xa5, 0x32, 0xf1, 0x52, 0x7c,
+ 0xe8, 0x55, 0x60, 0x5b, 0xd7, 0x69, 0xe4, 0xfc,
+ 0xfa, 0x12, 0x85, 0x96, 0xea, 0x50, 0x28, 0xab,
+ 0x8a, 0xf7, 0xbb, 0x0e, 0x53, 0x74, 0xca, 0xa6,
+ 0x27, 0x09, 0xc2, 0xb5, 0xde, 0x18, 0x14, 0xd9,
+ 0xea, 0xe5, 0x29, 0x1c, 0x40, 0x56, 0xcf, 0xd7,
+ 0xae, 0x05, 0x3f, 0x65, 0xaf, 0x05, 0x73, 0xe2,
+ 0x35, 0x96, 0x27, 0x07, 0x14, 0xc0, 0xad, 0x33,
+ 0xf1, 0xdc, 0x44, 0x7a, 0x89, 0x17, 0x77, 0xd2,
+ 0x9c, 0x58, 0x60, 0xf0, 0x3f, 0x7b, 0x2d, 0x2e,
+ 0x57, 0x95, 0x54, 0x87, 0xed, 0xf2, 0xc7, 0x4c,
+ 0xf0, 0xae, 0x56, 0x29, 0x19, 0x7d, 0x66, 0x4b,
+ 0x9b, 0x83, 0x84, 0x42, 0x3b, 0x01, 0x25, 0x66,
+ 0x8e, 0x02, 0xde, 0xb9, 0x83, 0x54, 0x19, 0xf6,
+ 0x9f, 0x79, 0x0d, 0x67, 0xc5, 0x1d, 0x7a, 0x44,
+ 0x02, 0x98, 0xa7, 0x16, 0x1c, 0x29, 0x0d, 0x74,
+ 0xff, 0x85, 0x40, 0x06, 0xef, 0x2c, 0xa9, 0xc6,
+ 0xf5, 0x53, 0x07, 0x06, 0xae, 0xe4, 0xfa, 0x5f,
+ 0xd8, 0x39, 0x4d, 0xf1, 0x9b, 0x6b, 0xd9, 0x24,
+ 0x84, 0xfe, 0x03, 0x4c, 0xb2, 0x3f, 0xdf, 0xa1,
+ 0x05, 0x9e, 0x50, 0x14, 0x5a, 0xd9, 0x1a, 0xa2,
+ 0xa7, 0xfa, 0xfa, 0x17, 0xf7, 0x78, 0xd6, 0xb5,
+ 0x92, 0x61, 0x91, 0xac, 0x36, 0xfa, 0x56, 0x0d,
+ 0x38, 0x32, 0x18, 0x85, 0x08, 0x58, 0x37, 0xf0,
+ 0x4b, 0xdb, 0x59, 0xe7, 0xa4, 0x34, 0xc0, 0x1b,
+ 0x01, 0xaf, 0x2d, 0xde, 0xa1, 0xaa, 0x5d, 0xd3,
+ 0xec, 0xe1, 0xd4, 0xf7, 0xe6, 0x54, 0x68, 0xf0,
+ 0x51, 0x97, 0xa7, 0x89, 0xea, 0x24, 0xad, 0xd3,
+ 0x6e, 0x47, 0x93, 0x8b, 0x4b, 0xb4, 0xf7, 0x1c,
+ 0x42, 0x06, 0x67, 0xe8, 0x99, 0xf6, 0xf5, 0x7b,
+ 0x85, 0xb5, 0x65, 0xb5, 0xb5, 0xd2, 0x37, 0xf5,
+ 0xf3, 0x02, 0xa6, 0x4d, 0x11, 0xa7, 0xdc, 0x51,
+ 0x09, 0x7f, 0xa0, 0xd8, 0x88, 0x1c, 0x13, 0x71,
+ 0xae, 0x9c, 0xb7, 0x7b, 0x34, 0xd6, 0x4e, 0x68,
+ 0x26, 0x83, 0x51, 0xaf, 0x1d, 0xee, 0x8b, 0xbb,
+ 0x69, 0x43, 0x2b, 0x9e, 0x8a, 0xbc, 0x02, 0x0e,
+ 0xa0, 0x1b, 0xe0, 0xa8, 0x5f, 0x6f, 0xaf, 0x1b,
+ 0x8f, 0xe7, 0x64, 0x71, 0x74, 0x11, 0x7e, 0xa8,
+ 0xd8, 0xf9, 0x97, 0x06, 0xc3, 0xb6, 0xfb, 0xfb,
+ 0xb7, 0x3d, 0x35, 0x9d, 0x3b, 0x52, 0xed, 0x54,
+ 0xca, 0xf4, 0x81, 0x01, 0x2d, 0x1b, 0xc3, 0xa7,
+ 0x00, 0x3d, 0x1a, 0x39, 0x54, 0xe1, 0xf6, 0xff,
+ 0xed, 0x6f, 0x0b, 0x5a, 0x68, 0xda, 0x58, 0xdd,
+ 0xa9, 0xcf, 0x5c, 0x4a, 0xe5, 0x09, 0x4e, 0xde,
+ 0x9d, 0xbc, 0x3e, 0xee, 0x5a, 0x00, 0x3b, 0x2c,
+ 0x87, 0x10, 0x65, 0x60, 0xdd, 0xd7, 0x56, 0xd1,
+ 0x4c, 0x64, 0x45, 0xe4, 0x21, 0xec, 0x78, 0xf8,
+ 0x25, 0x7a, 0x3e, 0x16, 0x5d, 0x09, 0x53, 0x14,
+ 0xbe, 0x4f, 0xae, 0x87, 0xd8, 0xd1, 0xaa, 0x3c,
+ 0xf6, 0x3e, 0xa4, 0x70, 0x8c, 0x5e, 0x70, 0xa4,
+ 0xb3, 0x6b, 0x66, 0x73, 0xd3, 0xbf, 0x31, 0x06,
+ 0x19, 0x62, 0x93, 0x15, 0xf2, 0x86, 0xe4, 0x52,
+ 0x7e, 0x53, 0x4c, 0x12, 0x38, 0xcc, 0x34, 0x7d,
+ 0x57, 0xf6, 0x42, 0x93, 0x8a, 0xc4, 0xee, 0x5c,
+ 0x8a, 0xe1, 0x52, 0x8f, 0x56, 0x64, 0xf6, 0xa6,
+ 0xd1, 0x91, 0x57, 0x70, 0xcd, 0x11, 0x76, 0xf5,
+ 0x59, 0x60, 0x60, 0x3c, 0xc1, 0xc3, 0x0b, 0x7f,
+ 0x58, 0x1a, 0x50, 0x91, 0xf1, 0x68, 0x8f, 0x6e,
+ 0x74, 0x74, 0xa8, 0x51, 0x0b, 0xf7, 0x7a, 0x98,
+ 0x37, 0xf2, 0x0a, 0x0e, 0xa4, 0x97, 0x04, 0xb8,
+ 0x9b, 0xfd, 0xa0, 0xea, 0xf7, 0x0d, 0xe1, 0xdb,
+ 0x03, 0xf0, 0x31, 0x29, 0xf8, 0xdd, 0x6b, 0x8b,
+ 0x5d, 0xd8, 0x59, 0xa9, 0x29, 0xcf, 0x9a, 0x79,
+ 0x89, 0x19, 0x63, 0x46, 0x09, 0x79, 0x6a, 0x11,
+ 0xda, 0x63, 0x68, 0x48, 0x77, 0x23, 0xfb, 0x7d,
+ 0x3a, 0x43, 0xcb, 0x02, 0x3b, 0x7a, 0x6d, 0x10,
+ 0x2a, 0x9e, 0xac, 0xf1, 0xd4, 0x19, 0xf8, 0x23,
+ 0x64, 0x1d, 0x2c, 0x5f, 0xf2, 0xb0, 0x5c, 0x23,
+ 0x27, 0xf7, 0x27, 0x30, 0x16, 0x37, 0xb1, 0x90,
+ 0xab, 0x38, 0xfb, 0x55, 0xcd, 0x78, 0x58, 0xd4,
+ 0x7d, 0x43, 0xf6, 0x45, 0x5e, 0x55, 0x8d, 0xb1,
+ 0x02, 0x65, 0x58, 0xb4, 0x13, 0x4b, 0x36, 0xf7,
+ 0xcc, 0xfe, 0x3d, 0x0b, 0x82, 0xe2, 0x12, 0x11,
+ 0xbb, 0xe6, 0xb8, 0x3a, 0x48, 0x71, 0xc7, 0x50,
+ 0x06, 0x16, 0x3a, 0xe6, 0x7c, 0x05, 0xc7, 0xc8,
+ 0x4d, 0x2f, 0x08, 0x6a, 0x17, 0x9a, 0x95, 0x97,
+ 0x50, 0x68, 0xdc, 0x28, 0x18, 0xc4, 0x61, 0x38,
+ 0xb9, 0xe0, 0x3e, 0x78, 0xdb, 0x29, 0xe0, 0x9f,
+ 0x52, 0xdd, 0xf8, 0x4f, 0x91, 0xc1, 0xd0, 0x33,
+ 0xa1, 0x7a, 0x8e, 0x30, 0x13, 0x82, 0x07, 0x9f,
+ 0xd3, 0x31, 0x0f, 0x23, 0xbe, 0x32, 0x5a, 0x75,
+ 0xcf, 0x96, 0xb2, 0xec, 0xb5, 0x32, 0xac, 0x21,
+ 0xd1, 0x82, 0x33, 0xd3, 0x15, 0x74, 0xbd, 0x90,
+ 0xf1, 0x2c, 0xe6, 0x5f, 0x8d, 0xe3, 0x02, 0xe8,
+ 0xe9, 0xc4, 0xca, 0x96, 0xeb, 0x0e, 0xbc, 0x91,
+ 0xf4, 0xb9, 0xea, 0xd9, 0x1b, 0x75, 0xbd, 0xe1,
+ 0xac, 0x2a, 0x05, 0x37, 0x52, 0x9b, 0x1b, 0x3f,
+ 0x5a, 0xdc, 0x21, 0xc3, 0x98, 0xbb, 0xaf, 0xa3,
+ 0xf2, 0x00, 0xbf, 0x0d, 0x30, 0x89, 0x05, 0xcc,
+ 0xa5, 0x76, 0xf5, 0x06, 0xf0, 0xc6, 0x54, 0x8a,
+ 0x5d, 0xd4, 0x1e, 0xc1, 0xf2, 0xce, 0xb0, 0x62,
+ 0xc8, 0xfc, 0x59, 0x42, 0x9a, 0x90, 0x60, 0x55,
+ 0xfe, 0x88, 0xa5, 0x8b, 0xb8, 0x33, 0x0c, 0x23,
+ 0x24, 0x0d, 0x15, 0x70, 0x37, 0x1e, 0x3d, 0xf6,
+ 0xd2, 0xea, 0x92, 0x10, 0xb2, 0xc4, 0x51, 0xac,
+ 0xf2, 0xac, 0xf3, 0x6b, 0x6c, 0xaa, 0xcf, 0x12,
+ 0xc5, 0x6c, 0x90, 0x50, 0xb5, 0x0c, 0xfc, 0x1a,
+ 0x15, 0x52, 0xe9, 0x26, 0xc6, 0x52, 0xa4, 0xe7,
+ 0x81, 0x69, 0xe1, 0xe7, 0x9e, 0x30, 0x01, 0xec,
+ 0x84, 0x89, 0xb2, 0x0d, 0x66, 0xdd, 0xce, 0x28,
+ 0x5c, 0xec, 0x98, 0x46, 0x68, 0x21, 0x9f, 0x88,
+ 0x3f, 0x1f, 0x42, 0x77, 0xce, 0xd0, 0x61, 0xd4,
+ 0x20, 0xa7, 0xff, 0x53, 0xad, 0x37, 0xd0, 0x17,
+ 0x35, 0xc9, 0xfc, 0xba, 0x0a, 0x78, 0x3f, 0xf2,
+ 0xcc, 0x86, 0x89, 0xe8, 0x4b, 0x3c, 0x48, 0x33,
+ 0x09, 0x7f, 0xc6, 0xc0, 0xdd, 0xb8, 0xfd, 0x7a,
+ 0x66, 0x66, 0x65, 0xeb, 0x47, 0xa7, 0x04, 0x28,
+ 0xa3, 0x19, 0x8e, 0xa9, 0xb1, 0x13, 0x67, 0x62,
+ 0x70, 0xcf, 0xd6
+};
+static const u8 dec_output012[] __initconst = {
+ 0x74, 0xa6, 0x3e, 0xe4, 0xb1, 0xcb, 0xaf, 0xb0,
+ 0x40, 0xe5, 0x0f, 0x9e, 0xf1, 0xf2, 0x89, 0xb5,
+ 0x42, 0x34, 0x8a, 0xa1, 0x03, 0xb7, 0xe9, 0x57,
+ 0x46, 0xbe, 0x20, 0xe4, 0x6e, 0xb0, 0xeb, 0xff,
+ 0xea, 0x07, 0x7e, 0xef, 0xe2, 0x55, 0x9f, 0xe5,
+ 0x78, 0x3a, 0xb7, 0x83, 0xc2, 0x18, 0x40, 0x7b,
+ 0xeb, 0xcd, 0x81, 0xfb, 0x90, 0x12, 0x9e, 0x46,
+ 0xa9, 0xd6, 0x4a, 0xba, 0xb0, 0x62, 0xdb, 0x6b,
+ 0x99, 0xc4, 0xdb, 0x54, 0x4b, 0xb8, 0xa5, 0x71,
+ 0xcb, 0xcd, 0x63, 0x32, 0x55, 0xfb, 0x31, 0xf0,
+ 0x38, 0xf5, 0xbe, 0x78, 0xe4, 0x45, 0xce, 0x1b,
+ 0x6a, 0x5b, 0x0e, 0xf4, 0x16, 0xe4, 0xb1, 0x3d,
+ 0xf6, 0x63, 0x7b, 0xa7, 0x0c, 0xde, 0x6f, 0x8f,
+ 0x74, 0xdf, 0xe0, 0x1e, 0x9d, 0xce, 0x8f, 0x24,
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+ 0x83, 0x82, 0xc2, 0x69, 0x8f, 0xe3, 0xe1, 0x3f,
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+ 0x3d, 0x32, 0xd4, 0xa5, 0xef, 0x49, 0x89, 0x5e,
+ 0x46, 0xb0, 0xa6, 0x63, 0x5b, 0x8a, 0x73, 0xae,
+ 0x6f, 0xd5, 0x9d, 0xf8, 0x4f, 0x40, 0xb5, 0xb2,
+ 0x6e, 0xd3, 0xb6, 0x01, 0xa9, 0x26, 0xa2, 0x21,
+ 0xcf, 0x33, 0x7a, 0x3a, 0xa4, 0x23, 0x13, 0xb0,
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+ 0x25, 0xa1, 0xb2, 0xd0, 0x80, 0x2c, 0xfb, 0xf9,
+ 0xfe, 0xd2, 0x33, 0xbb, 0x76, 0xfe, 0x7c, 0xa8,
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+ 0xff, 0xc8, 0x3b, 0xc0, 0xfe, 0xda, 0x22, 0x0b,
+ 0x43, 0xd6, 0x88, 0x39, 0x4c, 0x4a, 0xa6, 0x69,
+ 0x18, 0x93, 0x42, 0x4e, 0xb5, 0xcc, 0x66, 0x0d,
+ 0x09, 0xf8, 0x1e, 0x7c, 0xd3, 0x3c, 0x99, 0x0d,
+ 0x50, 0x1d, 0x62, 0xe9, 0x57, 0x06, 0xbf, 0x19,
+ 0x88, 0xdd, 0xad, 0x7b, 0x4f, 0xf9, 0xc7, 0x82,
+ 0x6d, 0x8d, 0xc8, 0xc4, 0xc5, 0x78, 0x17, 0x20,
+ 0x15, 0xc5, 0x52, 0x41, 0xcf, 0x5b, 0xd6, 0x7f,
+ 0x94, 0x02, 0x41, 0xe0, 0x40, 0x22, 0x03, 0x5e,
+ 0xd1, 0x53, 0xd4, 0x86, 0xd3, 0x2c, 0x9f, 0x0f,
+ 0x96, 0xe3, 0x6b, 0x9a, 0x76, 0x32, 0x06, 0x47,
+ 0x4b, 0x11, 0xb3, 0xdd, 0x03, 0x65, 0xbd, 0x9b,
+ 0x01, 0xda, 0x9c, 0xb9, 0x7e, 0x3f, 0x6a, 0xc4,
+ 0x7b, 0xea, 0xd4, 0x3c, 0xb9, 0xfb, 0x5c, 0x6b,
+ 0x64, 0x33, 0x52, 0xba, 0x64, 0x78, 0x8f, 0xa4,
+ 0xaf, 0x7a, 0x61, 0x8d, 0xbc, 0xc5, 0x73, 0xe9,
+ 0x6b, 0x58, 0x97, 0x4b, 0xbf, 0x63, 0x22, 0xd3,
+ 0x37, 0x02, 0x54, 0xc5, 0xb9, 0x16, 0x4a, 0xf0,
+ 0x19, 0xd8, 0x94, 0x57, 0xb8, 0x8a, 0xb3, 0x16,
+ 0x3b, 0xd0, 0x84, 0x8e, 0x67, 0xa6, 0xa3, 0x7d,
+ 0x78, 0xec, 0x00
+};
+static const u8 dec_assoc012[] __initconst = {
+ 0xb1, 0x69, 0x83, 0x87, 0x30, 0xaa, 0x5d, 0xb8,
+ 0x77, 0xe8, 0x21, 0xff, 0x06, 0x59, 0x35, 0xce,
+ 0x75, 0xfe, 0x38, 0xef, 0xb8, 0x91, 0x43, 0x8c,
+ 0xcf, 0x70, 0xdd, 0x0a, 0x68, 0xbf, 0xd4, 0xbc,
+ 0x16, 0x76, 0x99, 0x36, 0x1e, 0x58, 0x79, 0x5e,
+ 0xd4, 0x29, 0xf7, 0x33, 0x93, 0x48, 0xdb, 0x5f,
+ 0x01, 0xae, 0x9c, 0xb6, 0xe4, 0x88, 0x6d, 0x2b,
+ 0x76, 0x75, 0xe0, 0xf3, 0x74, 0xe2, 0xc9
+};
+static const u8 dec_nonce012[] __initconst = {
+ 0x05, 0xa3, 0x93, 0xed, 0x30, 0xc5, 0xa2, 0x06
+};
+static const u8 dec_key012[] __initconst = {
+ 0xb3, 0x35, 0x50, 0x03, 0x54, 0x2e, 0x40, 0x5e,
+ 0x8f, 0x59, 0x8e, 0xc5, 0x90, 0xd5, 0x27, 0x2d,
+ 0xba, 0x29, 0x2e, 0xcb, 0x1b, 0x70, 0x44, 0x1e,
+ 0x65, 0x91, 0x6e, 0x2a, 0x79, 0x22, 0xda, 0x64
+};
+
+static const u8 dec_input013[] __initconst = {
+ 0x52, 0x34, 0xb3, 0x65, 0x3b, 0xb7, 0xe5, 0xd3,
+ 0xab, 0x49, 0x17, 0x60, 0xd2, 0x52, 0x56, 0xdf,
+ 0xdf, 0x34, 0x56, 0x82, 0xe2, 0xbe, 0xe5, 0xe1,
+ 0x28, 0xd1, 0x4e, 0x5f, 0x4f, 0x01, 0x7d, 0x3f,
+ 0x99, 0x6b, 0x30, 0x6e, 0x1a, 0x7c, 0x4c, 0x8e,
+ 0x62, 0x81, 0xae, 0x86, 0x3f, 0x6b, 0xd0, 0xb5,
+ 0xa9, 0xcf, 0x50, 0xf1, 0x02, 0x12, 0xa0, 0x0b,
+ 0x24, 0xe9, 0xe6, 0x72, 0x89, 0x2c, 0x52, 0x1b,
+ 0x34, 0x38, 0xf8, 0x75, 0x5f, 0xa0, 0x74, 0xe2,
+ 0x99, 0xdd, 0xa6, 0x4b, 0x14, 0x50, 0x4e, 0xf1,
+ 0xbe, 0xd6, 0x9e, 0xdb, 0xb2, 0x24, 0x27, 0x74,
+ 0x12, 0x4a, 0x78, 0x78, 0x17, 0xa5, 0x58, 0x8e,
+ 0x2f, 0xf9, 0xf4, 0x8d, 0xee, 0x03, 0x88, 0xae,
+ 0xb8, 0x29, 0xa1, 0x2f, 0x4b, 0xee, 0x92, 0xbd,
+ 0x87, 0xb3, 0xce, 0x34, 0x21, 0x57, 0x46, 0x04,
+ 0x49, 0x0c, 0x80, 0xf2, 0x01, 0x13, 0xa1, 0x55,
+ 0xb3, 0xff, 0x44, 0x30, 0x3c, 0x1c, 0xd0, 0xef,
+ 0xbc, 0x18, 0x74, 0x26, 0xad, 0x41, 0x5b, 0x5b,
+ 0x3e, 0x9a, 0x7a, 0x46, 0x4f, 0x16, 0xd6, 0x74,
+ 0x5a, 0xb7, 0x3a, 0x28, 0x31, 0xd8, 0xae, 0x26,
+ 0xac, 0x50, 0x53, 0x86, 0xf2, 0x56, 0xd7, 0x3f,
+ 0x29, 0xbc, 0x45, 0x68, 0x8e, 0xcb, 0x98, 0x64,
+ 0xdd, 0xc9, 0xba, 0xb8, 0x4b, 0x7b, 0x82, 0xdd,
+ 0x14, 0xa7, 0xcb, 0x71, 0x72, 0x00, 0x5c, 0xad,
+ 0x7b, 0x6a, 0x89, 0xa4, 0x3d, 0xbf, 0xb5, 0x4b,
+ 0x3e, 0x7c, 0x5a, 0xcf, 0xb8, 0xa1, 0xc5, 0x6e,
+ 0xc8, 0xb6, 0x31, 0x57, 0x7b, 0xdf, 0xa5, 0x7e,
+ 0xb1, 0xd6, 0x42, 0x2a, 0x31, 0x36, 0xd1, 0xd0,
+ 0x3f, 0x7a, 0xe5, 0x94, 0xd6, 0x36, 0xa0, 0x6f,
+ 0xb7, 0x40, 0x7d, 0x37, 0xc6, 0x55, 0x7c, 0x50,
+ 0x40, 0x6d, 0x29, 0x89, 0xe3, 0x5a, 0xae, 0x97,
+ 0xe7, 0x44, 0x49, 0x6e, 0xbd, 0x81, 0x3d, 0x03,
+ 0x93, 0x06, 0x12, 0x06, 0xe2, 0x41, 0x12, 0x4a,
+ 0xf1, 0x6a, 0xa4, 0x58, 0xa2, 0xfb, 0xd2, 0x15,
+ 0xba, 0xc9, 0x79, 0xc9, 0xce, 0x5e, 0x13, 0xbb,
+ 0xf1, 0x09, 0x04, 0xcc, 0xfd, 0xe8, 0x51, 0x34,
+ 0x6a, 0xe8, 0x61, 0x88, 0xda, 0xed, 0x01, 0x47,
+ 0x84, 0xf5, 0x73, 0x25, 0xf9, 0x1c, 0x42, 0x86,
+ 0x07, 0xf3, 0x5b, 0x1a, 0x01, 0xb3, 0xeb, 0x24,
+ 0x32, 0x8d, 0xf6, 0xed, 0x7c, 0x4b, 0xeb, 0x3c,
+ 0x36, 0x42, 0x28, 0xdf, 0xdf, 0xb6, 0xbe, 0xd9,
+ 0x8c, 0x52, 0xd3, 0x2b, 0x08, 0x90, 0x8c, 0xe7,
+ 0x98, 0x31, 0xe2, 0x32, 0x8e, 0xfc, 0x11, 0x48,
+ 0x00, 0xa8, 0x6a, 0x42, 0x4a, 0x02, 0xc6, 0x4b,
+ 0x09, 0xf1, 0xe3, 0x49, 0xf3, 0x45, 0x1f, 0x0e,
+ 0xbc, 0x56, 0xe2, 0xe4, 0xdf, 0xfb, 0xeb, 0x61,
+ 0xfa, 0x24, 0xc1, 0x63, 0x75, 0xbb, 0x47, 0x75,
+ 0xaf, 0xe1, 0x53, 0x16, 0x96, 0x21, 0x85, 0x26,
+ 0x11, 0xb3, 0x76, 0xe3, 0x23, 0xa1, 0x6b, 0x74,
+ 0x37, 0xd0, 0xde, 0x06, 0x90, 0x71, 0x5d, 0x43,
+ 0x88, 0x9b, 0x00, 0x54, 0xa6, 0x75, 0x2f, 0xa1,
+ 0xc2, 0x0b, 0x73, 0x20, 0x1d, 0xb6, 0x21, 0x79,
+ 0x57, 0x3f, 0xfa, 0x09, 0xbe, 0x8a, 0x33, 0xc3,
+ 0x52, 0xf0, 0x1d, 0x82, 0x31, 0xd1, 0x55, 0xb5,
+ 0x6c, 0x99, 0x25, 0xcf, 0x5c, 0x32, 0xce, 0xe9,
+ 0x0d, 0xfa, 0x69, 0x2c, 0xd5, 0x0d, 0xc5, 0x6d,
+ 0x86, 0xd0, 0x0c, 0x3b, 0x06, 0x50, 0x79, 0xe8,
+ 0xc3, 0xae, 0x04, 0xe6, 0xcd, 0x51, 0xe4, 0x26,
+ 0x9b, 0x4f, 0x7e, 0xa6, 0x0f, 0xab, 0xd8, 0xe5,
+ 0xde, 0xa9, 0x00, 0x95, 0xbe, 0xa3, 0x9d, 0x5d,
+ 0xb2, 0x09, 0x70, 0x18, 0x1c, 0xf0, 0xac, 0x29,
+ 0x23, 0x02, 0x29, 0x28, 0xd2, 0x74, 0x35, 0x57,
+ 0x62, 0x0f, 0x24, 0xea, 0x5e, 0x33, 0xc2, 0x92,
+ 0xf3, 0x78, 0x4d, 0x30, 0x1e, 0xa1, 0x99, 0xa9,
+ 0x82, 0xb0, 0x42, 0x31, 0x8d, 0xad, 0x8a, 0xbc,
+ 0xfc, 0xd4, 0x57, 0x47, 0x3e, 0xb4, 0x50, 0xdd,
+ 0x6e, 0x2c, 0x80, 0x4d, 0x22, 0xf1, 0xfb, 0x57,
+ 0xc4, 0xdd, 0x17, 0xe1, 0x8a, 0x36, 0x4a, 0xb3,
+ 0x37, 0xca, 0xc9, 0x4e, 0xab, 0xd5, 0x69, 0xc4,
+ 0xf4, 0xbc, 0x0b, 0x3b, 0x44, 0x4b, 0x29, 0x9c,
+ 0xee, 0xd4, 0x35, 0x22, 0x21, 0xb0, 0x1f, 0x27,
+ 0x64, 0xa8, 0x51, 0x1b, 0xf0, 0x9f, 0x19, 0x5c,
+ 0xfb, 0x5a, 0x64, 0x74, 0x70, 0x45, 0x09, 0xf5,
+ 0x64, 0xfe, 0x1a, 0x2d, 0xc9, 0x14, 0x04, 0x14,
+ 0xcf, 0xd5, 0x7d, 0x60, 0xaf, 0x94, 0x39, 0x94,
+ 0xe2, 0x7d, 0x79, 0x82, 0xd0, 0x65, 0x3b, 0x6b,
+ 0x9c, 0x19, 0x84, 0xb4, 0x6d, 0xb3, 0x0c, 0x99,
+ 0xc0, 0x56, 0xa8, 0xbd, 0x73, 0xce, 0x05, 0x84,
+ 0x3e, 0x30, 0xaa, 0xc4, 0x9b, 0x1b, 0x04, 0x2a,
+ 0x9f, 0xd7, 0x43, 0x2b, 0x23, 0xdf, 0xbf, 0xaa,
+ 0xd5, 0xc2, 0x43, 0x2d, 0x70, 0xab, 0xdc, 0x75,
+ 0xad, 0xac, 0xf7, 0xc0, 0xbe, 0x67, 0xb2, 0x74,
+ 0xed, 0x67, 0x10, 0x4a, 0x92, 0x60, 0xc1, 0x40,
+ 0x50, 0x19, 0x8a, 0x8a, 0x8c, 0x09, 0x0e, 0x72,
+ 0xe1, 0x73, 0x5e, 0xe8, 0x41, 0x85, 0x63, 0x9f,
+ 0x3f, 0xd7, 0x7d, 0xc4, 0xfb, 0x22, 0x5d, 0x92,
+ 0x6c, 0xb3, 0x1e, 0xe2, 0x50, 0x2f, 0x82, 0xa8,
+ 0x28, 0xc0, 0xb5, 0xd7, 0x5f, 0x68, 0x0d, 0x2c,
+ 0x2d, 0xaf, 0x7e, 0xfa, 0x2e, 0x08, 0x0f, 0x1f,
+ 0x70, 0x9f, 0xe9, 0x19, 0x72, 0x55, 0xf8, 0xfb,
+ 0x51, 0xd2, 0x33, 0x5d, 0xa0, 0xd3, 0x2b, 0x0a,
+ 0x6c, 0xbc, 0x4e, 0xcf, 0x36, 0x4d, 0xdc, 0x3b,
+ 0xe9, 0x3e, 0x81, 0x7c, 0x61, 0xdb, 0x20, 0x2d,
+ 0x3a, 0xc3, 0xb3, 0x0c, 0x1e, 0x00, 0xb9, 0x7c,
+ 0xf5, 0xca, 0x10, 0x5f, 0x3a, 0x71, 0xb3, 0xe4,
+ 0x20, 0xdb, 0x0c, 0x2a, 0x98, 0x63, 0x45, 0x00,
+ 0x58, 0xf6, 0x68, 0xe4, 0x0b, 0xda, 0x13, 0x3b,
+ 0x60, 0x5c, 0x76, 0xdb, 0xb9, 0x97, 0x71, 0xe4,
+ 0xd9, 0xb7, 0xdb, 0xbd, 0x68, 0xc7, 0x84, 0x84,
+ 0xaa, 0x7c, 0x68, 0x62, 0x5e, 0x16, 0xfc, 0xba,
+ 0x72, 0xaa, 0x9a, 0xa9, 0xeb, 0x7c, 0x75, 0x47,
+ 0x97, 0x7e, 0xad, 0xe2, 0xd9, 0x91, 0xe8, 0xe4,
+ 0xa5, 0x31, 0xd7, 0x01, 0x8e, 0xa2, 0x11, 0x88,
+ 0x95, 0xb9, 0xf2, 0x9b, 0xd3, 0x7f, 0x1b, 0x81,
+ 0x22, 0xf7, 0x98, 0x60, 0x0a, 0x64, 0xa6, 0xc1,
+ 0xf6, 0x49, 0xc7, 0xe3, 0x07, 0x4d, 0x94, 0x7a,
+ 0xcf, 0x6e, 0x68, 0x0c, 0x1b, 0x3f, 0x6e, 0x2e,
+ 0xee, 0x92, 0xfa, 0x52, 0xb3, 0x59, 0xf8, 0xf1,
+ 0x8f, 0x6a, 0x66, 0xa3, 0x82, 0x76, 0x4a, 0x07,
+ 0x1a, 0xc7, 0xdd, 0xf5, 0xda, 0x9c, 0x3c, 0x24,
+ 0xbf, 0xfd, 0x42, 0xa1, 0x10, 0x64, 0x6a, 0x0f,
+ 0x89, 0xee, 0x36, 0xa5, 0xce, 0x99, 0x48, 0x6a,
+ 0xf0, 0x9f, 0x9e, 0x69, 0xa4, 0x40, 0x20, 0xe9,
+ 0x16, 0x15, 0xf7, 0xdb, 0x75, 0x02, 0xcb, 0xe9,
+ 0x73, 0x8b, 0x3b, 0x49, 0x2f, 0xf0, 0xaf, 0x51,
+ 0x06, 0x5c, 0xdf, 0x27, 0x27, 0x49, 0x6a, 0xd1,
+ 0xcc, 0xc7, 0xb5, 0x63, 0xb5, 0xfc, 0xb8, 0x5c,
+ 0x87, 0x7f, 0x84, 0xb4, 0xcc, 0x14, 0xa9, 0x53,
+ 0xda, 0xa4, 0x56, 0xf8, 0xb6, 0x1b, 0xcc, 0x40,
+ 0x27, 0x52, 0x06, 0x5a, 0x13, 0x81, 0xd7, 0x3a,
+ 0xd4, 0x3b, 0xfb, 0x49, 0x65, 0x31, 0x33, 0xb2,
+ 0xfa, 0xcd, 0xad, 0x58, 0x4e, 0x2b, 0xae, 0xd2,
+ 0x20, 0xfb, 0x1a, 0x48, 0xb4, 0x3f, 0x9a, 0xd8,
+ 0x7a, 0x35, 0x4a, 0xc8, 0xee, 0x88, 0x5e, 0x07,
+ 0x66, 0x54, 0xb9, 0xec, 0x9f, 0xa3, 0xe3, 0xb9,
+ 0x37, 0xaa, 0x49, 0x76, 0x31, 0xda, 0x74, 0x2d,
+ 0x3c, 0xa4, 0x65, 0x10, 0x32, 0x38, 0xf0, 0xde,
+ 0xd3, 0x99, 0x17, 0xaa, 0x71, 0xaa, 0x8f, 0x0f,
+ 0x8c, 0xaf, 0xa2, 0xf8, 0x5d, 0x64, 0xba, 0x1d,
+ 0xa3, 0xef, 0x96, 0x73, 0xe8, 0xa1, 0x02, 0x8d,
+ 0x0c, 0x6d, 0xb8, 0x06, 0x90, 0xb8, 0x08, 0x56,
+ 0x2c, 0xa7, 0x06, 0xc9, 0xc2, 0x38, 0xdb, 0x7c,
+ 0x63, 0xb1, 0x57, 0x8e, 0xea, 0x7c, 0x79, 0xf3,
+ 0x49, 0x1d, 0xfe, 0x9f, 0xf3, 0x6e, 0xb1, 0x1d,
+ 0xba, 0x19, 0x80, 0x1a, 0x0a, 0xd3, 0xb0, 0x26,
+ 0x21, 0x40, 0xb1, 0x7c, 0xf9, 0x4d, 0x8d, 0x10,
+ 0xc1, 0x7e, 0xf4, 0xf6, 0x3c, 0xa8, 0xfd, 0x7c,
+ 0xa3, 0x92, 0xb2, 0x0f, 0xaa, 0xcc, 0xa6, 0x11,
+ 0xfe, 0x04, 0xe3, 0xd1, 0x7a, 0x32, 0x89, 0xdf,
+ 0x0d, 0xc4, 0x8f, 0x79, 0x6b, 0xca, 0x16, 0x7c,
+ 0x6e, 0xf9, 0xad, 0x0f, 0xf6, 0xfe, 0x27, 0xdb,
+ 0xc4, 0x13, 0x70, 0xf1, 0x62, 0x1a, 0x4f, 0x79,
+ 0x40, 0xc9, 0x9b, 0x8b, 0x21, 0xea, 0x84, 0xfa,
+ 0xf5, 0xf1, 0x89, 0xce, 0xb7, 0x55, 0x0a, 0x80,
+ 0x39, 0x2f, 0x55, 0x36, 0x16, 0x9c, 0x7b, 0x08,
+ 0xbd, 0x87, 0x0d, 0xa5, 0x32, 0xf1, 0x52, 0x7c,
+ 0xe8, 0x55, 0x60, 0x5b, 0xd7, 0x69, 0xe4, 0xfc,
+ 0xfa, 0x12, 0x85, 0x96, 0xea, 0x50, 0x28, 0xab,
+ 0x8a, 0xf7, 0xbb, 0x0e, 0x53, 0x74, 0xca, 0xa6,
+ 0x27, 0x09, 0xc2, 0xb5, 0xde, 0x18, 0x14, 0xd9,
+ 0xea, 0xe5, 0x29, 0x1c, 0x40, 0x56, 0xcf, 0xd7,
+ 0xae, 0x05, 0x3f, 0x65, 0xaf, 0x05, 0x73, 0xe2,
+ 0x35, 0x96, 0x27, 0x07, 0x14, 0xc0, 0xad, 0x33,
+ 0xf1, 0xdc, 0x44, 0x7a, 0x89, 0x17, 0x77, 0xd2,
+ 0x9c, 0x58, 0x60, 0xf0, 0x3f, 0x7b, 0x2d, 0x2e,
+ 0x57, 0x95, 0x54, 0x87, 0xed, 0xf2, 0xc7, 0x4c,
+ 0xf0, 0xae, 0x56, 0x29, 0x19, 0x7d, 0x66, 0x4b,
+ 0x9b, 0x83, 0x84, 0x42, 0x3b, 0x01, 0x25, 0x66,
+ 0x8e, 0x02, 0xde, 0xb9, 0x83, 0x54, 0x19, 0xf6,
+ 0x9f, 0x79, 0x0d, 0x67, 0xc5, 0x1d, 0x7a, 0x44,
+ 0x02, 0x98, 0xa7, 0x16, 0x1c, 0x29, 0x0d, 0x74,
+ 0xff, 0x85, 0x40, 0x06, 0xef, 0x2c, 0xa9, 0xc6,
+ 0xf5, 0x53, 0x07, 0x06, 0xae, 0xe4, 0xfa, 0x5f,
+ 0xd8, 0x39, 0x4d, 0xf1, 0x9b, 0x6b, 0xd9, 0x24,
+ 0x84, 0xfe, 0x03, 0x4c, 0xb2, 0x3f, 0xdf, 0xa1,
+ 0x05, 0x9e, 0x50, 0x14, 0x5a, 0xd9, 0x1a, 0xa2,
+ 0xa7, 0xfa, 0xfa, 0x17, 0xf7, 0x78, 0xd6, 0xb5,
+ 0x92, 0x61, 0x91, 0xac, 0x36, 0xfa, 0x56, 0x0d,
+ 0x38, 0x32, 0x18, 0x85, 0x08, 0x58, 0x37, 0xf0,
+ 0x4b, 0xdb, 0x59, 0xe7, 0xa4, 0x34, 0xc0, 0x1b,
+ 0x01, 0xaf, 0x2d, 0xde, 0xa1, 0xaa, 0x5d, 0xd3,
+ 0xec, 0xe1, 0xd4, 0xf7, 0xe6, 0x54, 0x68, 0xf0,
+ 0x51, 0x97, 0xa7, 0x89, 0xea, 0x24, 0xad, 0xd3,
+ 0x6e, 0x47, 0x93, 0x8b, 0x4b, 0xb4, 0xf7, 0x1c,
+ 0x42, 0x06, 0x67, 0xe8, 0x99, 0xf6, 0xf5, 0x7b,
+ 0x85, 0xb5, 0x65, 0xb5, 0xb5, 0xd2, 0x37, 0xf5,
+ 0xf3, 0x02, 0xa6, 0x4d, 0x11, 0xa7, 0xdc, 0x51,
+ 0x09, 0x7f, 0xa0, 0xd8, 0x88, 0x1c, 0x13, 0x71,
+ 0xae, 0x9c, 0xb7, 0x7b, 0x34, 0xd6, 0x4e, 0x68,
+ 0x26, 0x83, 0x51, 0xaf, 0x1d, 0xee, 0x8b, 0xbb,
+ 0x69, 0x43, 0x2b, 0x9e, 0x8a, 0xbc, 0x02, 0x0e,
+ 0xa0, 0x1b, 0xe0, 0xa8, 0x5f, 0x6f, 0xaf, 0x1b,
+ 0x8f, 0xe7, 0x64, 0x71, 0x74, 0x11, 0x7e, 0xa8,
+ 0xd8, 0xf9, 0x97, 0x06, 0xc3, 0xb6, 0xfb, 0xfb,
+ 0xb7, 0x3d, 0x35, 0x9d, 0x3b, 0x52, 0xed, 0x54,
+ 0xca, 0xf4, 0x81, 0x01, 0x2d, 0x1b, 0xc3, 0xa7,
+ 0x00, 0x3d, 0x1a, 0x39, 0x54, 0xe1, 0xf6, 0xff,
+ 0xed, 0x6f, 0x0b, 0x5a, 0x68, 0xda, 0x58, 0xdd,
+ 0xa9, 0xcf, 0x5c, 0x4a, 0xe5, 0x09, 0x4e, 0xde,
+ 0x9d, 0xbc, 0x3e, 0xee, 0x5a, 0x00, 0x3b, 0x2c,
+ 0x87, 0x10, 0x65, 0x60, 0xdd, 0xd7, 0x56, 0xd1,
+ 0x4c, 0x64, 0x45, 0xe4, 0x21, 0xec, 0x78, 0xf8,
+ 0x25, 0x7a, 0x3e, 0x16, 0x5d, 0x09, 0x53, 0x14,
+ 0xbe, 0x4f, 0xae, 0x87, 0xd8, 0xd1, 0xaa, 0x3c,
+ 0xf6, 0x3e, 0xa4, 0x70, 0x8c, 0x5e, 0x70, 0xa4,
+ 0xb3, 0x6b, 0x66, 0x73, 0xd3, 0xbf, 0x31, 0x06,
+ 0x19, 0x62, 0x93, 0x15, 0xf2, 0x86, 0xe4, 0x52,
+ 0x7e, 0x53, 0x4c, 0x12, 0x38, 0xcc, 0x34, 0x7d,
+ 0x57, 0xf6, 0x42, 0x93, 0x8a, 0xc4, 0xee, 0x5c,
+ 0x8a, 0xe1, 0x52, 0x8f, 0x56, 0x64, 0xf6, 0xa6,
+ 0xd1, 0x91, 0x57, 0x70, 0xcd, 0x11, 0x76, 0xf5,
+ 0x59, 0x60, 0x60, 0x3c, 0xc1, 0xc3, 0x0b, 0x7f,
+ 0x58, 0x1a, 0x50, 0x91, 0xf1, 0x68, 0x8f, 0x6e,
+ 0x74, 0x74, 0xa8, 0x51, 0x0b, 0xf7, 0x7a, 0x98,
+ 0x37, 0xf2, 0x0a, 0x0e, 0xa4, 0x97, 0x04, 0xb8,
+ 0x9b, 0xfd, 0xa0, 0xea, 0xf7, 0x0d, 0xe1, 0xdb,
+ 0x03, 0xf0, 0x31, 0x29, 0xf8, 0xdd, 0x6b, 0x8b,
+ 0x5d, 0xd8, 0x59, 0xa9, 0x29, 0xcf, 0x9a, 0x79,
+ 0x89, 0x19, 0x63, 0x46, 0x09, 0x79, 0x6a, 0x11,
+ 0xda, 0x63, 0x68, 0x48, 0x77, 0x23, 0xfb, 0x7d,
+ 0x3a, 0x43, 0xcb, 0x02, 0x3b, 0x7a, 0x6d, 0x10,
+ 0x2a, 0x9e, 0xac, 0xf1, 0xd4, 0x19, 0xf8, 0x23,
+ 0x64, 0x1d, 0x2c, 0x5f, 0xf2, 0xb0, 0x5c, 0x23,
+ 0x27, 0xf7, 0x27, 0x30, 0x16, 0x37, 0xb1, 0x90,
+ 0xab, 0x38, 0xfb, 0x55, 0xcd, 0x78, 0x58, 0xd4,
+ 0x7d, 0x43, 0xf6, 0x45, 0x5e, 0x55, 0x8d, 0xb1,
+ 0x02, 0x65, 0x58, 0xb4, 0x13, 0x4b, 0x36, 0xf7,
+ 0xcc, 0xfe, 0x3d, 0x0b, 0x82, 0xe2, 0x12, 0x11,
+ 0xbb, 0xe6, 0xb8, 0x3a, 0x48, 0x71, 0xc7, 0x50,
+ 0x06, 0x16, 0x3a, 0xe6, 0x7c, 0x05, 0xc7, 0xc8,
+ 0x4d, 0x2f, 0x08, 0x6a, 0x17, 0x9a, 0x95, 0x97,
+ 0x50, 0x68, 0xdc, 0x28, 0x18, 0xc4, 0x61, 0x38,
+ 0xb9, 0xe0, 0x3e, 0x78, 0xdb, 0x29, 0xe0, 0x9f,
+ 0x52, 0xdd, 0xf8, 0x4f, 0x91, 0xc1, 0xd0, 0x33,
+ 0xa1, 0x7a, 0x8e, 0x30, 0x13, 0x82, 0x07, 0x9f,
+ 0xd3, 0x31, 0x0f, 0x23, 0xbe, 0x32, 0x5a, 0x75,
+ 0xcf, 0x96, 0xb2, 0xec, 0xb5, 0x32, 0xac, 0x21,
+ 0xd1, 0x82, 0x33, 0xd3, 0x15, 0x74, 0xbd, 0x90,
+ 0xf1, 0x2c, 0xe6, 0x5f, 0x8d, 0xe3, 0x02, 0xe8,
+ 0xe9, 0xc4, 0xca, 0x96, 0xeb, 0x0e, 0xbc, 0x91,
+ 0xf4, 0xb9, 0xea, 0xd9, 0x1b, 0x75, 0xbd, 0xe1,
+ 0xac, 0x2a, 0x05, 0x37, 0x52, 0x9b, 0x1b, 0x3f,
+ 0x5a, 0xdc, 0x21, 0xc3, 0x98, 0xbb, 0xaf, 0xa3,
+ 0xf2, 0x00, 0xbf, 0x0d, 0x30, 0x89, 0x05, 0xcc,
+ 0xa5, 0x76, 0xf5, 0x06, 0xf0, 0xc6, 0x54, 0x8a,
+ 0x5d, 0xd4, 0x1e, 0xc1, 0xf2, 0xce, 0xb0, 0x62,
+ 0xc8, 0xfc, 0x59, 0x42, 0x9a, 0x90, 0x60, 0x55,
+ 0xfe, 0x88, 0xa5, 0x8b, 0xb8, 0x33, 0x0c, 0x23,
+ 0x24, 0x0d, 0x15, 0x70, 0x37, 0x1e, 0x3d, 0xf6,
+ 0xd2, 0xea, 0x92, 0x10, 0xb2, 0xc4, 0x51, 0xac,
+ 0xf2, 0xac, 0xf3, 0x6b, 0x6c, 0xaa, 0xcf, 0x12,
+ 0xc5, 0x6c, 0x90, 0x50, 0xb5, 0x0c, 0xfc, 0x1a,
+ 0x15, 0x52, 0xe9, 0x26, 0xc6, 0x52, 0xa4, 0xe7,
+ 0x81, 0x69, 0xe1, 0xe7, 0x9e, 0x30, 0x01, 0xec,
+ 0x84, 0x89, 0xb2, 0x0d, 0x66, 0xdd, 0xce, 0x28,
+ 0x5c, 0xec, 0x98, 0x46, 0x68, 0x21, 0x9f, 0x88,
+ 0x3f, 0x1f, 0x42, 0x77, 0xce, 0xd0, 0x61, 0xd4,
+ 0x20, 0xa7, 0xff, 0x53, 0xad, 0x37, 0xd0, 0x17,
+ 0x35, 0xc9, 0xfc, 0xba, 0x0a, 0x78, 0x3f, 0xf2,
+ 0xcc, 0x86, 0x89, 0xe8, 0x4b, 0x3c, 0x48, 0x33,
+ 0x09, 0x7f, 0xc6, 0xc0, 0xdd, 0xb8, 0xfd, 0x7a,
+ 0x66, 0x66, 0x65, 0xeb, 0x47, 0xa7, 0x04, 0x28,
+ 0xa3, 0x19, 0x8e, 0xa9, 0xb1, 0x13, 0x67, 0x62,
+ 0x70, 0xcf, 0xd7
+};
+static const u8 dec_output013[] __initconst = {
+ 0x74, 0xa6, 0x3e, 0xe4, 0xb1, 0xcb, 0xaf, 0xb0,
+ 0x40, 0xe5, 0x0f, 0x9e, 0xf1, 0xf2, 0x89, 0xb5,
+ 0x42, 0x34, 0x8a, 0xa1, 0x03, 0xb7, 0xe9, 0x57,
+ 0x46, 0xbe, 0x20, 0xe4, 0x6e, 0xb0, 0xeb, 0xff,
+ 0xea, 0x07, 0x7e, 0xef, 0xe2, 0x55, 0x9f, 0xe5,
+ 0x78, 0x3a, 0xb7, 0x83, 0xc2, 0x18, 0x40, 0x7b,
+ 0xeb, 0xcd, 0x81, 0xfb, 0x90, 0x12, 0x9e, 0x46,
+ 0xa9, 0xd6, 0x4a, 0xba, 0xb0, 0x62, 0xdb, 0x6b,
+ 0x99, 0xc4, 0xdb, 0x54, 0x4b, 0xb8, 0xa5, 0x71,
+ 0xcb, 0xcd, 0x63, 0x32, 0x55, 0xfb, 0x31, 0xf0,
+ 0x38, 0xf5, 0xbe, 0x78, 0xe4, 0x45, 0xce, 0x1b,
+ 0x6a, 0x5b, 0x0e, 0xf4, 0x16, 0xe4, 0xb1, 0x3d,
+ 0xf6, 0x63, 0x7b, 0xa7, 0x0c, 0xde, 0x6f, 0x8f,
+ 0x74, 0xdf, 0xe0, 0x1e, 0x9d, 0xce, 0x8f, 0x24,
+ 0xef, 0x23, 0x35, 0x33, 0x7b, 0x83, 0x34, 0x23,
+ 0x58, 0x74, 0x14, 0x77, 0x1f, 0xc2, 0x4f, 0x4e,
+ 0xc6, 0x89, 0xf9, 0x52, 0x09, 0x37, 0x64, 0x14,
+ 0xc4, 0x01, 0x6b, 0x9d, 0x77, 0xe8, 0x90, 0x5d,
+ 0xa8, 0x4a, 0x2a, 0xef, 0x5c, 0x7f, 0xeb, 0xbb,
+ 0xb2, 0xc6, 0x93, 0x99, 0x66, 0xdc, 0x7f, 0xd4,
+ 0x9e, 0x2a, 0xca, 0x8d, 0xdb, 0xe7, 0x20, 0xcf,
+ 0xe4, 0x73, 0xae, 0x49, 0x7d, 0x64, 0x0f, 0x0e,
+ 0x28, 0x46, 0xa9, 0xa8, 0x32, 0xe4, 0x0e, 0xf6,
+ 0x51, 0x53, 0xb8, 0x3c, 0xb1, 0xff, 0xa3, 0x33,
+ 0x41, 0x75, 0xff, 0xf1, 0x6f, 0xf1, 0xfb, 0xbb,
+ 0x83, 0x7f, 0x06, 0x9b, 0xe7, 0x1b, 0x0a, 0xe0,
+ 0x5c, 0x33, 0x60, 0x5b, 0xdb, 0x5b, 0xed, 0xfe,
+ 0xa5, 0x16, 0x19, 0x72, 0xa3, 0x64, 0x23, 0x00,
+ 0x02, 0xc7, 0xf3, 0x6a, 0x81, 0x3e, 0x44, 0x1d,
+ 0x79, 0x15, 0x5f, 0x9a, 0xde, 0xe2, 0xfd, 0x1b,
+ 0x73, 0xc1, 0xbc, 0x23, 0xba, 0x31, 0xd2, 0x50,
+ 0xd5, 0xad, 0x7f, 0x74, 0xa7, 0xc9, 0xf8, 0x3e,
+ 0x2b, 0x26, 0x10, 0xf6, 0x03, 0x36, 0x74, 0xe4,
+ 0x0e, 0x6a, 0x72, 0xb7, 0x73, 0x0a, 0x42, 0x28,
+ 0xc2, 0xad, 0x5e, 0x03, 0xbe, 0xb8, 0x0b, 0xa8,
+ 0x5b, 0xd4, 0xb8, 0xba, 0x52, 0x89, 0xb1, 0x9b,
+ 0xc1, 0xc3, 0x65, 0x87, 0xed, 0xa5, 0xf4, 0x86,
+ 0xfd, 0x41, 0x80, 0x91, 0x27, 0x59, 0x53, 0x67,
+ 0x15, 0x78, 0x54, 0x8b, 0x2d, 0x3d, 0xc7, 0xff,
+ 0x02, 0x92, 0x07, 0x5f, 0x7a, 0x4b, 0x60, 0x59,
+ 0x3c, 0x6f, 0x5c, 0xd8, 0xec, 0x95, 0xd2, 0xfe,
+ 0xa0, 0x3b, 0xd8, 0x3f, 0xd1, 0x69, 0xa6, 0xd6,
+ 0x41, 0xb2, 0xf4, 0x4d, 0x12, 0xf4, 0x58, 0x3e,
+ 0x66, 0x64, 0x80, 0x31, 0x9b, 0xa8, 0x4c, 0x8b,
+ 0x07, 0xb2, 0xec, 0x66, 0x94, 0x66, 0x47, 0x50,
+ 0x50, 0x5f, 0x18, 0x0b, 0x0e, 0xd6, 0xc0, 0x39,
+ 0x21, 0x13, 0x9e, 0x33, 0xbc, 0x79, 0x36, 0x02,
+ 0x96, 0x70, 0xf0, 0x48, 0x67, 0x2f, 0x26, 0xe9,
+ 0x6d, 0x10, 0xbb, 0xd6, 0x3f, 0xd1, 0x64, 0x7a,
+ 0x2e, 0xbe, 0x0c, 0x61, 0xf0, 0x75, 0x42, 0x38,
+ 0x23, 0xb1, 0x9e, 0x9f, 0x7c, 0x67, 0x66, 0xd9,
+ 0x58, 0x9a, 0xf1, 0xbb, 0x41, 0x2a, 0x8d, 0x65,
+ 0x84, 0x94, 0xfc, 0xdc, 0x6a, 0x50, 0x64, 0xdb,
+ 0x56, 0x33, 0x76, 0x00, 0x10, 0xed, 0xbe, 0xd2,
+ 0x12, 0xf6, 0xf6, 0x1b, 0xa2, 0x16, 0xde, 0xae,
+ 0x31, 0x95, 0xdd, 0xb1, 0x08, 0x7e, 0x4e, 0xee,
+ 0xe7, 0xf9, 0xa5, 0xfb, 0x5b, 0x61, 0x43, 0x00,
+ 0x40, 0xf6, 0x7e, 0x02, 0x04, 0x32, 0x4e, 0x0c,
+ 0xe2, 0x66, 0x0d, 0xd7, 0x07, 0x98, 0x0e, 0xf8,
+ 0x72, 0x34, 0x6d, 0x95, 0x86, 0xd7, 0xcb, 0x31,
+ 0x54, 0x47, 0xd0, 0x38, 0x29, 0x9c, 0x5a, 0x68,
+ 0xd4, 0x87, 0x76, 0xc9, 0xe7, 0x7e, 0xe3, 0xf4,
+ 0x81, 0x6d, 0x18, 0xcb, 0xc9, 0x05, 0xaf, 0xa0,
+ 0xfb, 0x66, 0xf7, 0xf1, 0x1c, 0xc6, 0x14, 0x11,
+ 0x4f, 0x2b, 0x79, 0x42, 0x8b, 0xbc, 0xac, 0xe7,
+ 0x6c, 0xfe, 0x0f, 0x58, 0xe7, 0x7c, 0x78, 0x39,
+ 0x30, 0xb0, 0x66, 0x2c, 0x9b, 0x6d, 0x3a, 0xe1,
+ 0xcf, 0xc9, 0xa4, 0x0e, 0x6d, 0x6d, 0x8a, 0xa1,
+ 0x3a, 0xe7, 0x28, 0xd4, 0x78, 0x4c, 0xa6, 0xa2,
+ 0x2a, 0xa6, 0x03, 0x30, 0xd7, 0xa8, 0x25, 0x66,
+ 0x87, 0x2f, 0x69, 0x5c, 0x4e, 0xdd, 0xa5, 0x49,
+ 0x5d, 0x37, 0x4a, 0x59, 0xc4, 0xaf, 0x1f, 0xa2,
+ 0xe4, 0xf8, 0xa6, 0x12, 0x97, 0xd5, 0x79, 0xf5,
+ 0xe2, 0x4a, 0x2b, 0x5f, 0x61, 0xe4, 0x9e, 0xe3,
+ 0xee, 0xb8, 0xa7, 0x5b, 0x2f, 0xf4, 0x9e, 0x6c,
+ 0xfb, 0xd1, 0xc6, 0x56, 0x77, 0xba, 0x75, 0xaa,
+ 0x3d, 0x1a, 0xa8, 0x0b, 0xb3, 0x68, 0x24, 0x00,
+ 0x10, 0x7f, 0xfd, 0xd7, 0xa1, 0x8d, 0x83, 0x54,
+ 0x4f, 0x1f, 0xd8, 0x2a, 0xbe, 0x8a, 0x0c, 0x87,
+ 0xab, 0xa2, 0xde, 0xc3, 0x39, 0xbf, 0x09, 0x03,
+ 0xa5, 0xf3, 0x05, 0x28, 0xe1, 0xe1, 0xee, 0x39,
+ 0x70, 0x9c, 0xd8, 0x81, 0x12, 0x1e, 0x02, 0x40,
+ 0xd2, 0x6e, 0xf0, 0xeb, 0x1b, 0x3d, 0x22, 0xc6,
+ 0xe5, 0xe3, 0xb4, 0x5a, 0x98, 0xbb, 0xf0, 0x22,
+ 0x28, 0x8d, 0xe5, 0xd3, 0x16, 0x48, 0x24, 0xa5,
+ 0xe6, 0x66, 0x0c, 0xf9, 0x08, 0xf9, 0x7e, 0x1e,
+ 0xe1, 0x28, 0x26, 0x22, 0xc7, 0xc7, 0x0a, 0x32,
+ 0x47, 0xfa, 0xa3, 0xbe, 0x3c, 0xc4, 0xc5, 0x53,
+ 0x0a, 0xd5, 0x94, 0x4a, 0xd7, 0x93, 0xd8, 0x42,
+ 0x99, 0xb9, 0x0a, 0xdb, 0x56, 0xf7, 0xb9, 0x1c,
+ 0x53, 0x4f, 0xfa, 0xd3, 0x74, 0xad, 0xd9, 0x68,
+ 0xf1, 0x1b, 0xdf, 0x61, 0xc6, 0x5e, 0xa8, 0x48,
+ 0xfc, 0xd4, 0x4a, 0x4c, 0x3c, 0x32, 0xf7, 0x1c,
+ 0x96, 0x21, 0x9b, 0xf9, 0xa3, 0xcc, 0x5a, 0xce,
+ 0xd5, 0xd7, 0x08, 0x24, 0xf6, 0x1c, 0xfd, 0xdd,
+ 0x38, 0xc2, 0x32, 0xe9, 0xb8, 0xe7, 0xb6, 0xfa,
+ 0x9d, 0x45, 0x13, 0x2c, 0x83, 0xfd, 0x4a, 0x69,
+ 0x82, 0xcd, 0xdc, 0xb3, 0x76, 0x0c, 0x9e, 0xd8,
+ 0xf4, 0x1b, 0x45, 0x15, 0xb4, 0x97, 0xe7, 0x58,
+ 0x34, 0xe2, 0x03, 0x29, 0x5a, 0xbf, 0xb6, 0xe0,
+ 0x5d, 0x13, 0xd9, 0x2b, 0xb4, 0x80, 0xb2, 0x45,
+ 0x81, 0x6a, 0x2e, 0x6c, 0x89, 0x7d, 0xee, 0xbb,
+ 0x52, 0xdd, 0x1f, 0x18, 0xe7, 0x13, 0x6b, 0x33,
+ 0x0e, 0xea, 0x36, 0x92, 0x77, 0x7b, 0x6d, 0x9c,
+ 0x5a, 0x5f, 0x45, 0x7b, 0x7b, 0x35, 0x62, 0x23,
+ 0xd1, 0xbf, 0x0f, 0xd0, 0x08, 0x1b, 0x2b, 0x80,
+ 0x6b, 0x7e, 0xf1, 0x21, 0x47, 0xb0, 0x57, 0xd1,
+ 0x98, 0x72, 0x90, 0x34, 0x1c, 0x20, 0x04, 0xff,
+ 0x3d, 0x5c, 0xee, 0x0e, 0x57, 0x5f, 0x6f, 0x24,
+ 0x4e, 0x3c, 0xea, 0xfc, 0xa5, 0xa9, 0x83, 0xc9,
+ 0x61, 0xb4, 0x51, 0x24, 0xf8, 0x27, 0x5e, 0x46,
+ 0x8c, 0xb1, 0x53, 0x02, 0x96, 0x35, 0xba, 0xb8,
+ 0x4c, 0x71, 0xd3, 0x15, 0x59, 0x35, 0x22, 0x20,
+ 0xad, 0x03, 0x9f, 0x66, 0x44, 0x3b, 0x9c, 0x35,
+ 0x37, 0x1f, 0x9b, 0xbb, 0xf3, 0xdb, 0x35, 0x63,
+ 0x30, 0x64, 0xaa, 0xa2, 0x06, 0xa8, 0x5d, 0xbb,
+ 0xe1, 0x9f, 0x70, 0xec, 0x82, 0x11, 0x06, 0x36,
+ 0xec, 0x8b, 0x69, 0x66, 0x24, 0x44, 0xc9, 0x4a,
+ 0x57, 0xbb, 0x9b, 0x78, 0x13, 0xce, 0x9c, 0x0c,
+ 0xba, 0x92, 0x93, 0x63, 0xb8, 0xe2, 0x95, 0x0f,
+ 0x0f, 0x16, 0x39, 0x52, 0xfd, 0x3a, 0x6d, 0x02,
+ 0x4b, 0xdf, 0x13, 0xd3, 0x2a, 0x22, 0xb4, 0x03,
+ 0x7c, 0x54, 0x49, 0x96, 0x68, 0x54, 0x10, 0xfa,
+ 0xef, 0xaa, 0x6c, 0xe8, 0x22, 0xdc, 0x71, 0x16,
+ 0x13, 0x1a, 0xf6, 0x28, 0xe5, 0x6d, 0x77, 0x3d,
+ 0xcd, 0x30, 0x63, 0xb1, 0x70, 0x52, 0xa1, 0xc5,
+ 0x94, 0x5f, 0xcf, 0xe8, 0xb8, 0x26, 0x98, 0xf7,
+ 0x06, 0xa0, 0x0a, 0x70, 0xfa, 0x03, 0x80, 0xac,
+ 0xc1, 0xec, 0xd6, 0x4c, 0x54, 0xd7, 0xfe, 0x47,
+ 0xb6, 0x88, 0x4a, 0xf7, 0x71, 0x24, 0xee, 0xf3,
+ 0xd2, 0xc2, 0x4a, 0x7f, 0xfe, 0x61, 0xc7, 0x35,
+ 0xc9, 0x37, 0x67, 0xcb, 0x24, 0x35, 0xda, 0x7e,
+ 0xca, 0x5f, 0xf3, 0x8d, 0xd4, 0x13, 0x8e, 0xd6,
+ 0xcb, 0x4d, 0x53, 0x8f, 0x53, 0x1f, 0xc0, 0x74,
+ 0xf7, 0x53, 0xb9, 0x5e, 0x23, 0x37, 0xba, 0x6e,
+ 0xe3, 0x9d, 0x07, 0x55, 0x25, 0x7b, 0xe6, 0x2a,
+ 0x64, 0xd1, 0x32, 0xdd, 0x54, 0x1b, 0x4b, 0xc0,
+ 0xe1, 0xd7, 0x69, 0x58, 0xf8, 0x93, 0x29, 0xc4,
+ 0xdd, 0x23, 0x2f, 0xa5, 0xfc, 0x9d, 0x7e, 0xf8,
+ 0xd4, 0x90, 0xcd, 0x82, 0x55, 0xdc, 0x16, 0x16,
+ 0x9f, 0x07, 0x52, 0x9b, 0x9d, 0x25, 0xed, 0x32,
+ 0xc5, 0x7b, 0xdf, 0xf6, 0x83, 0x46, 0x3d, 0x65,
+ 0xb7, 0xef, 0x87, 0x7a, 0x12, 0x69, 0x8f, 0x06,
+ 0x7c, 0x51, 0x15, 0x4a, 0x08, 0xe8, 0xac, 0x9a,
+ 0x0c, 0x24, 0xa7, 0x27, 0xd8, 0x46, 0x2f, 0xe7,
+ 0x01, 0x0e, 0x1c, 0xc6, 0x91, 0xb0, 0x6e, 0x85,
+ 0x65, 0xf0, 0x29, 0x0d, 0x2e, 0x6b, 0x3b, 0xfb,
+ 0x4b, 0xdf, 0xe4, 0x80, 0x93, 0x03, 0x66, 0x46,
+ 0x3e, 0x8a, 0x6e, 0xf3, 0x5e, 0x4d, 0x62, 0x0e,
+ 0x49, 0x05, 0xaf, 0xd4, 0xf8, 0x21, 0x20, 0x61,
+ 0x1d, 0x39, 0x17, 0xf4, 0x61, 0x47, 0x95, 0xfb,
+ 0x15, 0x2e, 0xb3, 0x4f, 0xd0, 0x5d, 0xf5, 0x7d,
+ 0x40, 0xda, 0x90, 0x3c, 0x6b, 0xcb, 0x17, 0x00,
+ 0x13, 0x3b, 0x64, 0x34, 0x1b, 0xf0, 0xf2, 0xe5,
+ 0x3b, 0xb2, 0xc7, 0xd3, 0x5f, 0x3a, 0x44, 0xa6,
+ 0x9b, 0xb7, 0x78, 0x0e, 0x42, 0x5d, 0x4c, 0xc1,
+ 0xe9, 0xd2, 0xcb, 0xb7, 0x78, 0xd1, 0xfe, 0x9a,
+ 0xb5, 0x07, 0xe9, 0xe0, 0xbe, 0xe2, 0x8a, 0xa7,
+ 0x01, 0x83, 0x00, 0x8c, 0x5c, 0x08, 0xe6, 0x63,
+ 0x12, 0x92, 0xb7, 0xb7, 0xa6, 0x19, 0x7d, 0x38,
+ 0x13, 0x38, 0x92, 0x87, 0x24, 0xf9, 0x48, 0xb3,
+ 0x5e, 0x87, 0x6a, 0x40, 0x39, 0x5c, 0x3f, 0xed,
+ 0x8f, 0xee, 0xdb, 0x15, 0x82, 0x06, 0xda, 0x49,
+ 0x21, 0x2b, 0xb5, 0xbf, 0x32, 0x7c, 0x9f, 0x42,
+ 0x28, 0x63, 0xcf, 0xaf, 0x1e, 0xf8, 0xc6, 0xa0,
+ 0xd1, 0x02, 0x43, 0x57, 0x62, 0xec, 0x9b, 0x0f,
+ 0x01, 0x9e, 0x71, 0xd8, 0x87, 0x9d, 0x01, 0xc1,
+ 0x58, 0x77, 0xd9, 0xaf, 0xb1, 0x10, 0x7e, 0xdd,
+ 0xa6, 0x50, 0x96, 0xe5, 0xf0, 0x72, 0x00, 0x6d,
+ 0x4b, 0xf8, 0x2a, 0x8f, 0x19, 0xf3, 0x22, 0x88,
+ 0x11, 0x4a, 0x8b, 0x7c, 0xfd, 0xb7, 0xed, 0xe1,
+ 0xf6, 0x40, 0x39, 0xe0, 0xe9, 0xf6, 0x3d, 0x25,
+ 0xe6, 0x74, 0x3c, 0x58, 0x57, 0x7f, 0xe1, 0x22,
+ 0x96, 0x47, 0x31, 0x91, 0xba, 0x70, 0x85, 0x28,
+ 0x6b, 0x9f, 0x6e, 0x25, 0xac, 0x23, 0x66, 0x2f,
+ 0x29, 0x88, 0x28, 0xce, 0x8c, 0x5c, 0x88, 0x53,
+ 0xd1, 0x3b, 0xcc, 0x6a, 0x51, 0xb2, 0xe1, 0x28,
+ 0x3f, 0x91, 0xb4, 0x0d, 0x00, 0x3a, 0xe3, 0xf8,
+ 0xc3, 0x8f, 0xd7, 0x96, 0x62, 0x0e, 0x2e, 0xfc,
+ 0xc8, 0x6c, 0x77, 0xa6, 0x1d, 0x22, 0xc1, 0xb8,
+ 0xe6, 0x61, 0xd7, 0x67, 0x36, 0x13, 0x7b, 0xbb,
+ 0x9b, 0x59, 0x09, 0xa6, 0xdf, 0xf7, 0x6b, 0xa3,
+ 0x40, 0x1a, 0xf5, 0x4f, 0xb4, 0xda, 0xd3, 0xf3,
+ 0x81, 0x93, 0xc6, 0x18, 0xd9, 0x26, 0xee, 0xac,
+ 0xf0, 0xaa, 0xdf, 0xc5, 0x9c, 0xca, 0xc2, 0xa2,
+ 0xcc, 0x7b, 0x5c, 0x24, 0xb0, 0xbc, 0xd0, 0x6a,
+ 0x4d, 0x89, 0x09, 0xb8, 0x07, 0xfe, 0x87, 0xad,
+ 0x0a, 0xea, 0xb8, 0x42, 0xf9, 0x5e, 0xb3, 0x3e,
+ 0x36, 0x4c, 0xaf, 0x75, 0x9e, 0x1c, 0xeb, 0xbd,
+ 0xbc, 0xbb, 0x80, 0x40, 0xa7, 0x3a, 0x30, 0xbf,
+ 0xa8, 0x44, 0xf4, 0xeb, 0x38, 0xad, 0x29, 0xba,
+ 0x23, 0xed, 0x41, 0x0c, 0xea, 0xd2, 0xbb, 0x41,
+ 0x18, 0xd6, 0xb9, 0xba, 0x65, 0x2b, 0xa3, 0x91,
+ 0x6d, 0x1f, 0xa9, 0xf4, 0xd1, 0x25, 0x8d, 0x4d,
+ 0x38, 0xff, 0x64, 0xa0, 0xec, 0xde, 0xa6, 0xb6,
+ 0x79, 0xab, 0x8e, 0x33, 0x6c, 0x47, 0xde, 0xaf,
+ 0x94, 0xa4, 0xa5, 0x86, 0x77, 0x55, 0x09, 0x92,
+ 0x81, 0x31, 0x76, 0xc7, 0x34, 0x22, 0x89, 0x8e,
+ 0x3d, 0x26, 0x26, 0xd7, 0xfc, 0x1e, 0x16, 0x72,
+ 0x13, 0x33, 0x63, 0xd5, 0x22, 0xbe, 0xb8, 0x04,
+ 0x34, 0x84, 0x41, 0xbb, 0x80, 0xd0, 0x9f, 0x46,
+ 0x48, 0x07, 0xa7, 0xfc, 0x2b, 0x3a, 0x75, 0x55,
+ 0x8c, 0xc7, 0x6a, 0xbd, 0x7e, 0x46, 0x08, 0x84,
+ 0x0f, 0xd5, 0x74, 0xc0, 0x82, 0x8e, 0xaa, 0x61,
+ 0x05, 0x01, 0xb2, 0x47, 0x6e, 0x20, 0x6a, 0x2d,
+ 0x58, 0x70, 0x48, 0x32, 0xa7, 0x37, 0xd2, 0xb8,
+ 0x82, 0x1a, 0x51, 0xb9, 0x61, 0xdd, 0xfd, 0x9d,
+ 0x6b, 0x0e, 0x18, 0x97, 0xf8, 0x45, 0x5f, 0x87,
+ 0x10, 0xcf, 0x34, 0x72, 0x45, 0x26, 0x49, 0x70,
+ 0xe7, 0xa3, 0x78, 0xe0, 0x52, 0x89, 0x84, 0x94,
+ 0x83, 0x82, 0xc2, 0x69, 0x8f, 0xe3, 0xe1, 0x3f,
+ 0x60, 0x74, 0x88, 0xc4, 0xf7, 0x75, 0x2c, 0xfb,
+ 0xbd, 0xb6, 0xc4, 0x7e, 0x10, 0x0a, 0x6c, 0x90,
+ 0x04, 0x9e, 0xc3, 0x3f, 0x59, 0x7c, 0xce, 0x31,
+ 0x18, 0x60, 0x57, 0x73, 0x46, 0x94, 0x7d, 0x06,
+ 0xa0, 0x6d, 0x44, 0xec, 0xa2, 0x0a, 0x9e, 0x05,
+ 0x15, 0xef, 0xca, 0x5c, 0xbf, 0x00, 0xeb, 0xf7,
+ 0x3d, 0x32, 0xd4, 0xa5, 0xef, 0x49, 0x89, 0x5e,
+ 0x46, 0xb0, 0xa6, 0x63, 0x5b, 0x8a, 0x73, 0xae,
+ 0x6f, 0xd5, 0x9d, 0xf8, 0x4f, 0x40, 0xb5, 0xb2,
+ 0x6e, 0xd3, 0xb6, 0x01, 0xa9, 0x26, 0xa2, 0x21,
+ 0xcf, 0x33, 0x7a, 0x3a, 0xa4, 0x23, 0x13, 0xb0,
+ 0x69, 0x6a, 0xee, 0xce, 0xd8, 0x9d, 0x01, 0x1d,
+ 0x50, 0xc1, 0x30, 0x6c, 0xb1, 0xcd, 0xa0, 0xf0,
+ 0xf0, 0xa2, 0x64, 0x6f, 0xbb, 0xbf, 0x5e, 0xe6,
+ 0xab, 0x87, 0xb4, 0x0f, 0x4f, 0x15, 0xaf, 0xb5,
+ 0x25, 0xa1, 0xb2, 0xd0, 0x80, 0x2c, 0xfb, 0xf9,
+ 0xfe, 0xd2, 0x33, 0xbb, 0x76, 0xfe, 0x7c, 0xa8,
+ 0x66, 0xf7, 0xe7, 0x85, 0x9f, 0x1f, 0x85, 0x57,
+ 0x88, 0xe1, 0xe9, 0x63, 0xe4, 0xd8, 0x1c, 0xa1,
+ 0xfb, 0xda, 0x44, 0x05, 0x2e, 0x1d, 0x3a, 0x1c,
+ 0xff, 0xc8, 0x3b, 0xc0, 0xfe, 0xda, 0x22, 0x0b,
+ 0x43, 0xd6, 0x88, 0x39, 0x4c, 0x4a, 0xa6, 0x69,
+ 0x18, 0x93, 0x42, 0x4e, 0xb5, 0xcc, 0x66, 0x0d,
+ 0x09, 0xf8, 0x1e, 0x7c, 0xd3, 0x3c, 0x99, 0x0d,
+ 0x50, 0x1d, 0x62, 0xe9, 0x57, 0x06, 0xbf, 0x19,
+ 0x88, 0xdd, 0xad, 0x7b, 0x4f, 0xf9, 0xc7, 0x82,
+ 0x6d, 0x8d, 0xc8, 0xc4, 0xc5, 0x78, 0x17, 0x20,
+ 0x15, 0xc5, 0x52, 0x41, 0xcf, 0x5b, 0xd6, 0x7f,
+ 0x94, 0x02, 0x41, 0xe0, 0x40, 0x22, 0x03, 0x5e,
+ 0xd1, 0x53, 0xd4, 0x86, 0xd3, 0x2c, 0x9f, 0x0f,
+ 0x96, 0xe3, 0x6b, 0x9a, 0x76, 0x32, 0x06, 0x47,
+ 0x4b, 0x11, 0xb3, 0xdd, 0x03, 0x65, 0xbd, 0x9b,
+ 0x01, 0xda, 0x9c, 0xb9, 0x7e, 0x3f, 0x6a, 0xc4,
+ 0x7b, 0xea, 0xd4, 0x3c, 0xb9, 0xfb, 0x5c, 0x6b,
+ 0x64, 0x33, 0x52, 0xba, 0x64, 0x78, 0x8f, 0xa4,
+ 0xaf, 0x7a, 0x61, 0x8d, 0xbc, 0xc5, 0x73, 0xe9,
+ 0x6b, 0x58, 0x97, 0x4b, 0xbf, 0x63, 0x22, 0xd3,
+ 0x37, 0x02, 0x54, 0xc5, 0xb9, 0x16, 0x4a, 0xf0,
+ 0x19, 0xd8, 0x94, 0x57, 0xb8, 0x8a, 0xb3, 0x16,
+ 0x3b, 0xd0, 0x84, 0x8e, 0x67, 0xa6, 0xa3, 0x7d,
+ 0x78, 0xec, 0x00
+};
+static const u8 dec_assoc013[] __initconst = {
+ 0xb1, 0x69, 0x83, 0x87, 0x30, 0xaa, 0x5d, 0xb8,
+ 0x77, 0xe8, 0x21, 0xff, 0x06, 0x59, 0x35, 0xce,
+ 0x75, 0xfe, 0x38, 0xef, 0xb8, 0x91, 0x43, 0x8c,
+ 0xcf, 0x70, 0xdd, 0x0a, 0x68, 0xbf, 0xd4, 0xbc,
+ 0x16, 0x76, 0x99, 0x36, 0x1e, 0x58, 0x79, 0x5e,
+ 0xd4, 0x29, 0xf7, 0x33, 0x93, 0x48, 0xdb, 0x5f,
+ 0x01, 0xae, 0x9c, 0xb6, 0xe4, 0x88, 0x6d, 0x2b,
+ 0x76, 0x75, 0xe0, 0xf3, 0x74, 0xe2, 0xc9
+};
+static const u8 dec_nonce013[] __initconst = {
+ 0x05, 0xa3, 0x93, 0xed, 0x30, 0xc5, 0xa2, 0x06
+};
+static const u8 dec_key013[] __initconst = {
+ 0xb3, 0x35, 0x50, 0x03, 0x54, 0x2e, 0x40, 0x5e,
+ 0x8f, 0x59, 0x8e, 0xc5, 0x90, 0xd5, 0x27, 0x2d,
+ 0xba, 0x29, 0x2e, 0xcb, 0x1b, 0x70, 0x44, 0x1e,
+ 0x65, 0x91, 0x6e, 0x2a, 0x79, 0x22, 0xda, 0x64
+};
+
+static const struct chacha20poly1305_testvec
+chacha20poly1305_dec_vectors[] __initconst = {
+ { dec_input001, dec_output001, dec_assoc001, dec_nonce001, dec_key001,
+ sizeof(dec_input001), sizeof(dec_assoc001), sizeof(dec_nonce001) },
+ { dec_input002, dec_output002, dec_assoc002, dec_nonce002, dec_key002,
+ sizeof(dec_input002), sizeof(dec_assoc002), sizeof(dec_nonce002) },
+ { dec_input003, dec_output003, dec_assoc003, dec_nonce003, dec_key003,
+ sizeof(dec_input003), sizeof(dec_assoc003), sizeof(dec_nonce003) },
+ { dec_input004, dec_output004, dec_assoc004, dec_nonce004, dec_key004,
+ sizeof(dec_input004), sizeof(dec_assoc004), sizeof(dec_nonce004) },
+ { dec_input005, dec_output005, dec_assoc005, dec_nonce005, dec_key005,
+ sizeof(dec_input005), sizeof(dec_assoc005), sizeof(dec_nonce005) },
+ { dec_input006, dec_output006, dec_assoc006, dec_nonce006, dec_key006,
+ sizeof(dec_input006), sizeof(dec_assoc006), sizeof(dec_nonce006) },
+ { dec_input007, dec_output007, dec_assoc007, dec_nonce007, dec_key007,
+ sizeof(dec_input007), sizeof(dec_assoc007), sizeof(dec_nonce007) },
+ { dec_input008, dec_output008, dec_assoc008, dec_nonce008, dec_key008,
+ sizeof(dec_input008), sizeof(dec_assoc008), sizeof(dec_nonce008) },
+ { dec_input009, dec_output009, dec_assoc009, dec_nonce009, dec_key009,
+ sizeof(dec_input009), sizeof(dec_assoc009), sizeof(dec_nonce009) },
+ { dec_input010, dec_output010, dec_assoc010, dec_nonce010, dec_key010,
+ sizeof(dec_input010), sizeof(dec_assoc010), sizeof(dec_nonce010) },
+ { dec_input011, dec_output011, dec_assoc011, dec_nonce011, dec_key011,
+ sizeof(dec_input011), sizeof(dec_assoc011), sizeof(dec_nonce011) },
+ { dec_input012, dec_output012, dec_assoc012, dec_nonce012, dec_key012,
+ sizeof(dec_input012), sizeof(dec_assoc012), sizeof(dec_nonce012) },
+ { dec_input013, dec_output013, dec_assoc013, dec_nonce013, dec_key013,
+ sizeof(dec_input013), sizeof(dec_assoc013), sizeof(dec_nonce013),
+ true }
+};
+
+static const u8 xenc_input001[] __initconst = {
+ 0x49, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74,
+ 0x2d, 0x44, 0x72, 0x61, 0x66, 0x74, 0x73, 0x20,
+ 0x61, 0x72, 0x65, 0x20, 0x64, 0x72, 0x61, 0x66,
+ 0x74, 0x20, 0x64, 0x6f, 0x63, 0x75, 0x6d, 0x65,
+ 0x6e, 0x74, 0x73, 0x20, 0x76, 0x61, 0x6c, 0x69,
+ 0x64, 0x20, 0x66, 0x6f, 0x72, 0x20, 0x61, 0x20,
+ 0x6d, 0x61, 0x78, 0x69, 0x6d, 0x75, 0x6d, 0x20,
+ 0x6f, 0x66, 0x20, 0x73, 0x69, 0x78, 0x20, 0x6d,
+ 0x6f, 0x6e, 0x74, 0x68, 0x73, 0x20, 0x61, 0x6e,
+ 0x64, 0x20, 0x6d, 0x61, 0x79, 0x20, 0x62, 0x65,
+ 0x20, 0x75, 0x70, 0x64, 0x61, 0x74, 0x65, 0x64,
+ 0x2c, 0x20, 0x72, 0x65, 0x70, 0x6c, 0x61, 0x63,
+ 0x65, 0x64, 0x2c, 0x20, 0x6f, 0x72, 0x20, 0x6f,
+ 0x62, 0x73, 0x6f, 0x6c, 0x65, 0x74, 0x65, 0x64,
+ 0x20, 0x62, 0x79, 0x20, 0x6f, 0x74, 0x68, 0x65,
+ 0x72, 0x20, 0x64, 0x6f, 0x63, 0x75, 0x6d, 0x65,
+ 0x6e, 0x74, 0x73, 0x20, 0x61, 0x74, 0x20, 0x61,
+ 0x6e, 0x79, 0x20, 0x74, 0x69, 0x6d, 0x65, 0x2e,
+ 0x20, 0x49, 0x74, 0x20, 0x69, 0x73, 0x20, 0x69,
+ 0x6e, 0x61, 0x70, 0x70, 0x72, 0x6f, 0x70, 0x72,
+ 0x69, 0x61, 0x74, 0x65, 0x20, 0x74, 0x6f, 0x20,
+ 0x75, 0x73, 0x65, 0x20, 0x49, 0x6e, 0x74, 0x65,
+ 0x72, 0x6e, 0x65, 0x74, 0x2d, 0x44, 0x72, 0x61,
+ 0x66, 0x74, 0x73, 0x20, 0x61, 0x73, 0x20, 0x72,
+ 0x65, 0x66, 0x65, 0x72, 0x65, 0x6e, 0x63, 0x65,
+ 0x20, 0x6d, 0x61, 0x74, 0x65, 0x72, 0x69, 0x61,
+ 0x6c, 0x20, 0x6f, 0x72, 0x20, 0x74, 0x6f, 0x20,
+ 0x63, 0x69, 0x74, 0x65, 0x20, 0x74, 0x68, 0x65,
+ 0x6d, 0x20, 0x6f, 0x74, 0x68, 0x65, 0x72, 0x20,
+ 0x74, 0x68, 0x61, 0x6e, 0x20, 0x61, 0x73, 0x20,
+ 0x2f, 0xe2, 0x80, 0x9c, 0x77, 0x6f, 0x72, 0x6b,
+ 0x20, 0x69, 0x6e, 0x20, 0x70, 0x72, 0x6f, 0x67,
+ 0x72, 0x65, 0x73, 0x73, 0x2e, 0x2f, 0xe2, 0x80,
+ 0x9d
+};
+static const u8 xenc_output001[] __initconst = {
+ 0x1a, 0x6e, 0x3a, 0xd9, 0xfd, 0x41, 0x3f, 0x77,
+ 0x54, 0x72, 0x0a, 0x70, 0x9a, 0xa0, 0x29, 0x92,
+ 0x2e, 0xed, 0x93, 0xcf, 0x0f, 0x71, 0x88, 0x18,
+ 0x7a, 0x9d, 0x2d, 0x24, 0xe0, 0xf5, 0xea, 0x3d,
+ 0x55, 0x64, 0xd7, 0xad, 0x2a, 0x1a, 0x1f, 0x7e,
+ 0x86, 0x6d, 0xb0, 0xce, 0x80, 0x41, 0x72, 0x86,
+ 0x26, 0xee, 0x84, 0xd7, 0xef, 0x82, 0x9e, 0xe2,
+ 0x60, 0x9d, 0x5a, 0xfc, 0xf0, 0xe4, 0x19, 0x85,
+ 0xea, 0x09, 0xc6, 0xfb, 0xb3, 0xa9, 0x50, 0x09,
+ 0xec, 0x5e, 0x11, 0x90, 0xa1, 0xc5, 0x4e, 0x49,
+ 0xef, 0x50, 0xd8, 0x8f, 0xe0, 0x78, 0xd7, 0xfd,
+ 0xb9, 0x3b, 0xc9, 0xf2, 0x91, 0xc8, 0x25, 0xc8,
+ 0xa7, 0x63, 0x60, 0xce, 0x10, 0xcd, 0xc6, 0x7f,
+ 0xf8, 0x16, 0xf8, 0xe1, 0x0a, 0xd9, 0xde, 0x79,
+ 0x50, 0x33, 0xf2, 0x16, 0x0f, 0x17, 0xba, 0xb8,
+ 0x5d, 0xd8, 0xdf, 0x4e, 0x51, 0xa8, 0x39, 0xd0,
+ 0x85, 0xca, 0x46, 0x6a, 0x10, 0xa7, 0xa3, 0x88,
+ 0xef, 0x79, 0xb9, 0xf8, 0x24, 0xf3, 0xe0, 0x71,
+ 0x7b, 0x76, 0x28, 0x46, 0x3a, 0x3a, 0x1b, 0x91,
+ 0xb6, 0xd4, 0x3e, 0x23, 0xe5, 0x44, 0x15, 0xbf,
+ 0x60, 0x43, 0x9d, 0xa4, 0xbb, 0xd5, 0x5f, 0x89,
+ 0xeb, 0xef, 0x8e, 0xfd, 0xdd, 0xb4, 0x0d, 0x46,
+ 0xf0, 0x69, 0x23, 0x63, 0xae, 0x94, 0xf5, 0x5e,
+ 0xa5, 0xad, 0x13, 0x1c, 0x41, 0x76, 0xe6, 0x90,
+ 0xd6, 0x6d, 0xa2, 0x8f, 0x97, 0x4c, 0xa8, 0x0b,
+ 0xcf, 0x8d, 0x43, 0x2b, 0x9c, 0x9b, 0xc5, 0x58,
+ 0xa5, 0xb6, 0x95, 0x9a, 0xbf, 0x81, 0xc6, 0x54,
+ 0xc9, 0x66, 0x0c, 0xe5, 0x4f, 0x6a, 0x53, 0xa1,
+ 0xe5, 0x0c, 0xba, 0x31, 0xde, 0x34, 0x64, 0x73,
+ 0x8a, 0x3b, 0xbd, 0x92, 0x01, 0xdb, 0x71, 0x69,
+ 0xf3, 0x58, 0x99, 0xbc, 0xd1, 0xcb, 0x4a, 0x05,
+ 0xe2, 0x58, 0x9c, 0x25, 0x17, 0xcd, 0xdc, 0x83,
+ 0xb7, 0xff, 0xfb, 0x09, 0x61, 0xad, 0xbf, 0x13,
+ 0x5b, 0x5e, 0xed, 0x46, 0x82, 0x6f, 0x22, 0xd8,
+ 0x93, 0xa6, 0x85, 0x5b, 0x40, 0x39, 0x5c, 0xc5,
+ 0x9c
+};
+static const u8 xenc_assoc001[] __initconst = {
+ 0xf3, 0x33, 0x88, 0x86, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x4e, 0x91
+};
+static const u8 xenc_nonce001[] __initconst = {
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17
+};
+static const u8 xenc_key001[] __initconst = {
+ 0x1c, 0x92, 0x40, 0xa5, 0xeb, 0x55, 0xd3, 0x8a,
+ 0xf3, 0x33, 0x88, 0x86, 0x04, 0xf6, 0xb5, 0xf0,
+ 0x47, 0x39, 0x17, 0xc1, 0x40, 0x2b, 0x80, 0x09,
+ 0x9d, 0xca, 0x5c, 0xbc, 0x20, 0x70, 0x75, 0xc0
+};
+
+static const struct chacha20poly1305_testvec
+xchacha20poly1305_enc_vectors[] __initconst = {
+ { xenc_input001, xenc_output001, xenc_assoc001, xenc_nonce001, xenc_key001,
+ sizeof(xenc_input001), sizeof(xenc_assoc001), sizeof(xenc_nonce001) }
+};
+
+static const u8 xdec_input001[] __initconst = {
+ 0x1a, 0x6e, 0x3a, 0xd9, 0xfd, 0x41, 0x3f, 0x77,
+ 0x54, 0x72, 0x0a, 0x70, 0x9a, 0xa0, 0x29, 0x92,
+ 0x2e, 0xed, 0x93, 0xcf, 0x0f, 0x71, 0x88, 0x18,
+ 0x7a, 0x9d, 0x2d, 0x24, 0xe0, 0xf5, 0xea, 0x3d,
+ 0x55, 0x64, 0xd7, 0xad, 0x2a, 0x1a, 0x1f, 0x7e,
+ 0x86, 0x6d, 0xb0, 0xce, 0x80, 0x41, 0x72, 0x86,
+ 0x26, 0xee, 0x84, 0xd7, 0xef, 0x82, 0x9e, 0xe2,
+ 0x60, 0x9d, 0x5a, 0xfc, 0xf0, 0xe4, 0x19, 0x85,
+ 0xea, 0x09, 0xc6, 0xfb, 0xb3, 0xa9, 0x50, 0x09,
+ 0xec, 0x5e, 0x11, 0x90, 0xa1, 0xc5, 0x4e, 0x49,
+ 0xef, 0x50, 0xd8, 0x8f, 0xe0, 0x78, 0xd7, 0xfd,
+ 0xb9, 0x3b, 0xc9, 0xf2, 0x91, 0xc8, 0x25, 0xc8,
+ 0xa7, 0x63, 0x60, 0xce, 0x10, 0xcd, 0xc6, 0x7f,
+ 0xf8, 0x16, 0xf8, 0xe1, 0x0a, 0xd9, 0xde, 0x79,
+ 0x50, 0x33, 0xf2, 0x16, 0x0f, 0x17, 0xba, 0xb8,
+ 0x5d, 0xd8, 0xdf, 0x4e, 0x51, 0xa8, 0x39, 0xd0,
+ 0x85, 0xca, 0x46, 0x6a, 0x10, 0xa7, 0xa3, 0x88,
+ 0xef, 0x79, 0xb9, 0xf8, 0x24, 0xf3, 0xe0, 0x71,
+ 0x7b, 0x76, 0x28, 0x46, 0x3a, 0x3a, 0x1b, 0x91,
+ 0xb6, 0xd4, 0x3e, 0x23, 0xe5, 0x44, 0x15, 0xbf,
+ 0x60, 0x43, 0x9d, 0xa4, 0xbb, 0xd5, 0x5f, 0x89,
+ 0xeb, 0xef, 0x8e, 0xfd, 0xdd, 0xb4, 0x0d, 0x46,
+ 0xf0, 0x69, 0x23, 0x63, 0xae, 0x94, 0xf5, 0x5e,
+ 0xa5, 0xad, 0x13, 0x1c, 0x41, 0x76, 0xe6, 0x90,
+ 0xd6, 0x6d, 0xa2, 0x8f, 0x97, 0x4c, 0xa8, 0x0b,
+ 0xcf, 0x8d, 0x43, 0x2b, 0x9c, 0x9b, 0xc5, 0x58,
+ 0xa5, 0xb6, 0x95, 0x9a, 0xbf, 0x81, 0xc6, 0x54,
+ 0xc9, 0x66, 0x0c, 0xe5, 0x4f, 0x6a, 0x53, 0xa1,
+ 0xe5, 0x0c, 0xba, 0x31, 0xde, 0x34, 0x64, 0x73,
+ 0x8a, 0x3b, 0xbd, 0x92, 0x01, 0xdb, 0x71, 0x69,
+ 0xf3, 0x58, 0x99, 0xbc, 0xd1, 0xcb, 0x4a, 0x05,
+ 0xe2, 0x58, 0x9c, 0x25, 0x17, 0xcd, 0xdc, 0x83,
+ 0xb7, 0xff, 0xfb, 0x09, 0x61, 0xad, 0xbf, 0x13,
+ 0x5b, 0x5e, 0xed, 0x46, 0x82, 0x6f, 0x22, 0xd8,
+ 0x93, 0xa6, 0x85, 0x5b, 0x40, 0x39, 0x5c, 0xc5,
+ 0x9c
+};
+static const u8 xdec_output001[] __initconst = {
+ 0x49, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74,
+ 0x2d, 0x44, 0x72, 0x61, 0x66, 0x74, 0x73, 0x20,
+ 0x61, 0x72, 0x65, 0x20, 0x64, 0x72, 0x61, 0x66,
+ 0x74, 0x20, 0x64, 0x6f, 0x63, 0x75, 0x6d, 0x65,
+ 0x6e, 0x74, 0x73, 0x20, 0x76, 0x61, 0x6c, 0x69,
+ 0x64, 0x20, 0x66, 0x6f, 0x72, 0x20, 0x61, 0x20,
+ 0x6d, 0x61, 0x78, 0x69, 0x6d, 0x75, 0x6d, 0x20,
+ 0x6f, 0x66, 0x20, 0x73, 0x69, 0x78, 0x20, 0x6d,
+ 0x6f, 0x6e, 0x74, 0x68, 0x73, 0x20, 0x61, 0x6e,
+ 0x64, 0x20, 0x6d, 0x61, 0x79, 0x20, 0x62, 0x65,
+ 0x20, 0x75, 0x70, 0x64, 0x61, 0x74, 0x65, 0x64,
+ 0x2c, 0x20, 0x72, 0x65, 0x70, 0x6c, 0x61, 0x63,
+ 0x65, 0x64, 0x2c, 0x20, 0x6f, 0x72, 0x20, 0x6f,
+ 0x62, 0x73, 0x6f, 0x6c, 0x65, 0x74, 0x65, 0x64,
+ 0x20, 0x62, 0x79, 0x20, 0x6f, 0x74, 0x68, 0x65,
+ 0x72, 0x20, 0x64, 0x6f, 0x63, 0x75, 0x6d, 0x65,
+ 0x6e, 0x74, 0x73, 0x20, 0x61, 0x74, 0x20, 0x61,
+ 0x6e, 0x79, 0x20, 0x74, 0x69, 0x6d, 0x65, 0x2e,
+ 0x20, 0x49, 0x74, 0x20, 0x69, 0x73, 0x20, 0x69,
+ 0x6e, 0x61, 0x70, 0x70, 0x72, 0x6f, 0x70, 0x72,
+ 0x69, 0x61, 0x74, 0x65, 0x20, 0x74, 0x6f, 0x20,
+ 0x75, 0x73, 0x65, 0x20, 0x49, 0x6e, 0x74, 0x65,
+ 0x72, 0x6e, 0x65, 0x74, 0x2d, 0x44, 0x72, 0x61,
+ 0x66, 0x74, 0x73, 0x20, 0x61, 0x73, 0x20, 0x72,
+ 0x65, 0x66, 0x65, 0x72, 0x65, 0x6e, 0x63, 0x65,
+ 0x20, 0x6d, 0x61, 0x74, 0x65, 0x72, 0x69, 0x61,
+ 0x6c, 0x20, 0x6f, 0x72, 0x20, 0x74, 0x6f, 0x20,
+ 0x63, 0x69, 0x74, 0x65, 0x20, 0x74, 0x68, 0x65,
+ 0x6d, 0x20, 0x6f, 0x74, 0x68, 0x65, 0x72, 0x20,
+ 0x74, 0x68, 0x61, 0x6e, 0x20, 0x61, 0x73, 0x20,
+ 0x2f, 0xe2, 0x80, 0x9c, 0x77, 0x6f, 0x72, 0x6b,
+ 0x20, 0x69, 0x6e, 0x20, 0x70, 0x72, 0x6f, 0x67,
+ 0x72, 0x65, 0x73, 0x73, 0x2e, 0x2f, 0xe2, 0x80,
+ 0x9d
+};
+static const u8 xdec_assoc001[] __initconst = {
+ 0xf3, 0x33, 0x88, 0x86, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x4e, 0x91
+};
+static const u8 xdec_nonce001[] __initconst = {
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17
+};
+static const u8 xdec_key001[] __initconst = {
+ 0x1c, 0x92, 0x40, 0xa5, 0xeb, 0x55, 0xd3, 0x8a,
+ 0xf3, 0x33, 0x88, 0x86, 0x04, 0xf6, 0xb5, 0xf0,
+ 0x47, 0x39, 0x17, 0xc1, 0x40, 0x2b, 0x80, 0x09,
+ 0x9d, 0xca, 0x5c, 0xbc, 0x20, 0x70, 0x75, 0xc0
+};
+
+static const struct chacha20poly1305_testvec
+xchacha20poly1305_dec_vectors[] __initconst = {
+ { xdec_input001, xdec_output001, xdec_assoc001, xdec_nonce001, xdec_key001,
+ sizeof(xdec_input001), sizeof(xdec_assoc001), sizeof(xdec_nonce001) }
+};
+
+/* This is for the selftests-only, since it is only useful for the purpose of
+ * testing the underlying primitives and interactions.
+ */
+static void __init
+chacha20poly1305_encrypt_bignonce(u8 *dst, const u8 *src, const size_t src_len,
+ const u8 *ad, const size_t ad_len,
+ const u8 nonce[12],
+ const u8 key[CHACHA20POLY1305_KEY_SIZE])
+{
+ const u8 *pad0 = page_address(ZERO_PAGE(0));
+ struct poly1305_desc_ctx poly1305_state;
+ u32 chacha20_state[CHACHA_STATE_WORDS];
+ union {
+ u8 block0[POLY1305_KEY_SIZE];
+ __le64 lens[2];
+ } b = {{ 0 }};
+ u8 bottom_row[16] = { 0 };
+ u32 le_key[8];
+ int i;
+
+ memcpy(&bottom_row[4], nonce, 12);
+ for (i = 0; i < 8; ++i)
+ le_key[i] = get_unaligned_le32(key + sizeof(le_key[i]) * i);
+ chacha_init(chacha20_state, le_key, bottom_row);
+ chacha20_crypt(chacha20_state, b.block0, b.block0, sizeof(b.block0));
+ poly1305_init(&poly1305_state, b.block0);
+ poly1305_update(&poly1305_state, ad, ad_len);
+ poly1305_update(&poly1305_state, pad0, (0x10 - ad_len) & 0xf);
+ chacha20_crypt(chacha20_state, dst, src, src_len);
+ poly1305_update(&poly1305_state, dst, src_len);
+ poly1305_update(&poly1305_state, pad0, (0x10 - src_len) & 0xf);
+ b.lens[0] = cpu_to_le64(ad_len);
+ b.lens[1] = cpu_to_le64(src_len);
+ poly1305_update(&poly1305_state, (u8 *)b.lens, sizeof(b.lens));
+ poly1305_final(&poly1305_state, dst + src_len);
+}
+
+static void __init
+chacha20poly1305_selftest_encrypt(u8 *dst, const u8 *src, const size_t src_len,
+ const u8 *ad, const size_t ad_len,
+ const u8 *nonce, const size_t nonce_len,
+ const u8 key[CHACHA20POLY1305_KEY_SIZE])
+{
+ if (nonce_len == 8)
+ chacha20poly1305_encrypt(dst, src, src_len, ad, ad_len,
+ get_unaligned_le64(nonce), key);
+ else if (nonce_len == 12)
+ chacha20poly1305_encrypt_bignonce(dst, src, src_len, ad,
+ ad_len, nonce, key);
+ else
+ BUG();
+}
+
+static bool __init
+decryption_success(bool func_ret, bool expect_failure, int memcmp_result)
+{
+ if (expect_failure)
+ return !func_ret;
+ return func_ret && !memcmp_result;
+}
+
+bool __init chacha20poly1305_selftest(void)
+{
+ enum { MAXIMUM_TEST_BUFFER_LEN = 1UL << 12 };
+ size_t i, j, k, total_len;
+ u8 *computed_output = NULL, *input = NULL;
+ bool success = true, ret;
+ struct scatterlist sg_src[3];
+
+ computed_output = kmalloc(MAXIMUM_TEST_BUFFER_LEN, GFP_KERNEL);
+ input = kmalloc(MAXIMUM_TEST_BUFFER_LEN, GFP_KERNEL);
+ if (!computed_output || !input) {
+ pr_err("chacha20poly1305 self-test malloc: FAIL\n");
+ success = false;
+ goto out;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(chacha20poly1305_enc_vectors); ++i) {
+ memset(computed_output, 0, MAXIMUM_TEST_BUFFER_LEN);
+ chacha20poly1305_selftest_encrypt(computed_output,
+ chacha20poly1305_enc_vectors[i].input,
+ chacha20poly1305_enc_vectors[i].ilen,
+ chacha20poly1305_enc_vectors[i].assoc,
+ chacha20poly1305_enc_vectors[i].alen,
+ chacha20poly1305_enc_vectors[i].nonce,
+ chacha20poly1305_enc_vectors[i].nlen,
+ chacha20poly1305_enc_vectors[i].key);
+ if (memcmp(computed_output,
+ chacha20poly1305_enc_vectors[i].output,
+ chacha20poly1305_enc_vectors[i].ilen +
+ POLY1305_DIGEST_SIZE)) {
+ pr_err("chacha20poly1305 encryption self-test %zu: FAIL\n",
+ i + 1);
+ success = false;
+ }
+ }
+
+ for (i = 0; i < ARRAY_SIZE(chacha20poly1305_enc_vectors); ++i) {
+ if (chacha20poly1305_enc_vectors[i].nlen != 8)
+ continue;
+ memcpy(computed_output, chacha20poly1305_enc_vectors[i].input,
+ chacha20poly1305_enc_vectors[i].ilen);
+ sg_init_one(sg_src, computed_output,
+ chacha20poly1305_enc_vectors[i].ilen + POLY1305_DIGEST_SIZE);
+ ret = chacha20poly1305_encrypt_sg_inplace(sg_src,
+ chacha20poly1305_enc_vectors[i].ilen,
+ chacha20poly1305_enc_vectors[i].assoc,
+ chacha20poly1305_enc_vectors[i].alen,
+ get_unaligned_le64(chacha20poly1305_enc_vectors[i].nonce),
+ chacha20poly1305_enc_vectors[i].key);
+ if (!ret || memcmp(computed_output,
+ chacha20poly1305_enc_vectors[i].output,
+ chacha20poly1305_enc_vectors[i].ilen +
+ POLY1305_DIGEST_SIZE)) {
+ pr_err("chacha20poly1305 sg encryption self-test %zu: FAIL\n",
+ i + 1);
+ success = false;
+ }
+ }
+
+ for (i = 0; i < ARRAY_SIZE(chacha20poly1305_dec_vectors); ++i) {
+ memset(computed_output, 0, MAXIMUM_TEST_BUFFER_LEN);
+ ret = chacha20poly1305_decrypt(computed_output,
+ chacha20poly1305_dec_vectors[i].input,
+ chacha20poly1305_dec_vectors[i].ilen,
+ chacha20poly1305_dec_vectors[i].assoc,
+ chacha20poly1305_dec_vectors[i].alen,
+ get_unaligned_le64(chacha20poly1305_dec_vectors[i].nonce),
+ chacha20poly1305_dec_vectors[i].key);
+ if (!decryption_success(ret,
+ chacha20poly1305_dec_vectors[i].failure,
+ memcmp(computed_output,
+ chacha20poly1305_dec_vectors[i].output,
+ chacha20poly1305_dec_vectors[i].ilen -
+ POLY1305_DIGEST_SIZE))) {
+ pr_err("chacha20poly1305 decryption self-test %zu: FAIL\n",
+ i + 1);
+ success = false;
+ }
+ }
+
+ for (i = 0; i < ARRAY_SIZE(chacha20poly1305_dec_vectors); ++i) {
+ memcpy(computed_output, chacha20poly1305_dec_vectors[i].input,
+ chacha20poly1305_dec_vectors[i].ilen);
+ sg_init_one(sg_src, computed_output,
+ chacha20poly1305_dec_vectors[i].ilen);
+ ret = chacha20poly1305_decrypt_sg_inplace(sg_src,
+ chacha20poly1305_dec_vectors[i].ilen,
+ chacha20poly1305_dec_vectors[i].assoc,
+ chacha20poly1305_dec_vectors[i].alen,
+ get_unaligned_le64(chacha20poly1305_dec_vectors[i].nonce),
+ chacha20poly1305_dec_vectors[i].key);
+ if (!decryption_success(ret,
+ chacha20poly1305_dec_vectors[i].failure,
+ memcmp(computed_output, chacha20poly1305_dec_vectors[i].output,
+ chacha20poly1305_dec_vectors[i].ilen -
+ POLY1305_DIGEST_SIZE))) {
+ pr_err("chacha20poly1305 sg decryption self-test %zu: FAIL\n",
+ i + 1);
+ success = false;
+ }
+ }
+
+ for (i = 0; i < ARRAY_SIZE(xchacha20poly1305_enc_vectors); ++i) {
+ memset(computed_output, 0, MAXIMUM_TEST_BUFFER_LEN);
+ xchacha20poly1305_encrypt(computed_output,
+ xchacha20poly1305_enc_vectors[i].input,
+ xchacha20poly1305_enc_vectors[i].ilen,
+ xchacha20poly1305_enc_vectors[i].assoc,
+ xchacha20poly1305_enc_vectors[i].alen,
+ xchacha20poly1305_enc_vectors[i].nonce,
+ xchacha20poly1305_enc_vectors[i].key);
+ if (memcmp(computed_output,
+ xchacha20poly1305_enc_vectors[i].output,
+ xchacha20poly1305_enc_vectors[i].ilen +
+ POLY1305_DIGEST_SIZE)) {
+ pr_err("xchacha20poly1305 encryption self-test %zu: FAIL\n",
+ i + 1);
+ success = false;
+ }
+ }
+
+ for (i = 0; i < ARRAY_SIZE(xchacha20poly1305_dec_vectors); ++i) {
+ memset(computed_output, 0, MAXIMUM_TEST_BUFFER_LEN);
+ ret = xchacha20poly1305_decrypt(computed_output,
+ xchacha20poly1305_dec_vectors[i].input,
+ xchacha20poly1305_dec_vectors[i].ilen,
+ xchacha20poly1305_dec_vectors[i].assoc,
+ xchacha20poly1305_dec_vectors[i].alen,
+ xchacha20poly1305_dec_vectors[i].nonce,
+ xchacha20poly1305_dec_vectors[i].key);
+ if (!decryption_success(ret,
+ xchacha20poly1305_dec_vectors[i].failure,
+ memcmp(computed_output,
+ xchacha20poly1305_dec_vectors[i].output,
+ xchacha20poly1305_dec_vectors[i].ilen -
+ POLY1305_DIGEST_SIZE))) {
+ pr_err("xchacha20poly1305 decryption self-test %zu: FAIL\n",
+ i + 1);
+ success = false;
+ }
+ }
+
+ for (total_len = POLY1305_DIGEST_SIZE; IS_ENABLED(DEBUG_CHACHA20POLY1305_SLOW_CHUNK_TEST)
+ && total_len <= 1 << 10; ++total_len) {
+ for (i = 0; i <= total_len; ++i) {
+ for (j = i; j <= total_len; ++j) {
+ k = 0;
+ sg_init_table(sg_src, 3);
+ if (i)
+ sg_set_buf(&sg_src[k++], input, i);
+ if (j - i)
+ sg_set_buf(&sg_src[k++], input + i, j - i);
+ if (total_len - j)
+ sg_set_buf(&sg_src[k++], input + j, total_len - j);
+ sg_init_marker(sg_src, k);
+ memset(computed_output, 0, total_len);
+ memset(input, 0, total_len);
+
+ if (!chacha20poly1305_encrypt_sg_inplace(sg_src,
+ total_len - POLY1305_DIGEST_SIZE, NULL, 0,
+ 0, enc_key001))
+ goto chunkfail;
+ chacha20poly1305_encrypt(computed_output,
+ computed_output,
+ total_len - POLY1305_DIGEST_SIZE, NULL, 0, 0,
+ enc_key001);
+ if (memcmp(computed_output, input, total_len))
+ goto chunkfail;
+ if (!chacha20poly1305_decrypt(computed_output,
+ input, total_len, NULL, 0, 0, enc_key001))
+ goto chunkfail;
+ for (k = 0; k < total_len - POLY1305_DIGEST_SIZE; ++k) {
+ if (computed_output[k])
+ goto chunkfail;
+ }
+ if (!chacha20poly1305_decrypt_sg_inplace(sg_src,
+ total_len, NULL, 0, 0, enc_key001))
+ goto chunkfail;
+ for (k = 0; k < total_len - POLY1305_DIGEST_SIZE; ++k) {
+ if (input[k])
+ goto chunkfail;
+ }
+ continue;
+
+ chunkfail:
+ pr_err("chacha20poly1305 chunked self-test %zu/%zu/%zu: FAIL\n",
+ total_len, i, j);
+ success = false;
+ }
+
+ }
+ }
+
+out:
+ kfree(computed_output);
+ kfree(input);
+ return success;
+}
diff --git a/lib/crypto/chacha20poly1305.c b/lib/crypto/chacha20poly1305.c
new file mode 100644
index 0000000..431e042
--- /dev/null
+++ b/lib/crypto/chacha20poly1305.c
@@ -0,0 +1,370 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ *
+ * This is an implementation of the ChaCha20Poly1305 AEAD construction.
+ *
+ * Information: https://tools.ietf.org/html/rfc8439
+ */
+
+#include <crypto/algapi.h>
+#include <crypto/chacha20poly1305.h>
+#include <crypto/chacha.h>
+#include <crypto/poly1305.h>
+#include <crypto/scatterwalk.h>
+
+#include <asm/unaligned.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+
+#define CHACHA_KEY_WORDS (CHACHA_KEY_SIZE / sizeof(u32))
+
+static void chacha_load_key(u32 *k, const u8 *in)
+{
+ k[0] = get_unaligned_le32(in);
+ k[1] = get_unaligned_le32(in + 4);
+ k[2] = get_unaligned_le32(in + 8);
+ k[3] = get_unaligned_le32(in + 12);
+ k[4] = get_unaligned_le32(in + 16);
+ k[5] = get_unaligned_le32(in + 20);
+ k[6] = get_unaligned_le32(in + 24);
+ k[7] = get_unaligned_le32(in + 28);
+}
+
+static void xchacha_init(u32 *chacha_state, const u8 *key, const u8 *nonce)
+{
+ u32 k[CHACHA_KEY_WORDS];
+ u8 iv[CHACHA_IV_SIZE];
+
+ memset(iv, 0, 8);
+ memcpy(iv + 8, nonce + 16, 8);
+
+ chacha_load_key(k, key);
+
+ /* Compute the subkey given the original key and first 128 nonce bits */
+ chacha_init(chacha_state, k, nonce);
+ hchacha_block(chacha_state, k, 20);
+
+ chacha_init(chacha_state, k, iv);
+
+ memzero_explicit(k, sizeof(k));
+ memzero_explicit(iv, sizeof(iv));
+}
+
+static void
+__chacha20poly1305_encrypt(u8 *dst, const u8 *src, const size_t src_len,
+ const u8 *ad, const size_t ad_len, u32 *chacha_state)
+{
+ const u8 *pad0 = page_address(ZERO_PAGE(0));
+ struct poly1305_desc_ctx poly1305_state;
+ union {
+ u8 block0[POLY1305_KEY_SIZE];
+ __le64 lens[2];
+ } b;
+
+ chacha20_crypt(chacha_state, b.block0, pad0, sizeof(b.block0));
+ poly1305_init(&poly1305_state, b.block0);
+
+ poly1305_update(&poly1305_state, ad, ad_len);
+ if (ad_len & 0xf)
+ poly1305_update(&poly1305_state, pad0, 0x10 - (ad_len & 0xf));
+
+ chacha20_crypt(chacha_state, dst, src, src_len);
+
+ poly1305_update(&poly1305_state, dst, src_len);
+ if (src_len & 0xf)
+ poly1305_update(&poly1305_state, pad0, 0x10 - (src_len & 0xf));
+
+ b.lens[0] = cpu_to_le64(ad_len);
+ b.lens[1] = cpu_to_le64(src_len);
+ poly1305_update(&poly1305_state, (u8 *)b.lens, sizeof(b.lens));
+
+ poly1305_final(&poly1305_state, dst + src_len);
+
+ memzero_explicit(chacha_state, CHACHA_STATE_WORDS * sizeof(u32));
+ memzero_explicit(&b, sizeof(b));
+}
+
+void chacha20poly1305_encrypt(u8 *dst, const u8 *src, const size_t src_len,
+ const u8 *ad, const size_t ad_len,
+ const u64 nonce,
+ const u8 key[CHACHA20POLY1305_KEY_SIZE])
+{
+ u32 chacha_state[CHACHA_STATE_WORDS];
+ u32 k[CHACHA_KEY_WORDS];
+ __le64 iv[2];
+
+ chacha_load_key(k, key);
+
+ iv[0] = 0;
+ iv[1] = cpu_to_le64(nonce);
+
+ chacha_init(chacha_state, k, (u8 *)iv);
+ __chacha20poly1305_encrypt(dst, src, src_len, ad, ad_len, chacha_state);
+
+ memzero_explicit(iv, sizeof(iv));
+ memzero_explicit(k, sizeof(k));
+}
+EXPORT_SYMBOL(chacha20poly1305_encrypt);
+
+void xchacha20poly1305_encrypt(u8 *dst, const u8 *src, const size_t src_len,
+ const u8 *ad, const size_t ad_len,
+ const u8 nonce[XCHACHA20POLY1305_NONCE_SIZE],
+ const u8 key[CHACHA20POLY1305_KEY_SIZE])
+{
+ u32 chacha_state[CHACHA_STATE_WORDS];
+
+ xchacha_init(chacha_state, key, nonce);
+ __chacha20poly1305_encrypt(dst, src, src_len, ad, ad_len, chacha_state);
+}
+EXPORT_SYMBOL(xchacha20poly1305_encrypt);
+
+static bool
+__chacha20poly1305_decrypt(u8 *dst, const u8 *src, const size_t src_len,
+ const u8 *ad, const size_t ad_len, u32 *chacha_state)
+{
+ const u8 *pad0 = page_address(ZERO_PAGE(0));
+ struct poly1305_desc_ctx poly1305_state;
+ size_t dst_len;
+ int ret;
+ union {
+ u8 block0[POLY1305_KEY_SIZE];
+ u8 mac[POLY1305_DIGEST_SIZE];
+ __le64 lens[2];
+ } b;
+
+ if (unlikely(src_len < POLY1305_DIGEST_SIZE))
+ return false;
+
+ chacha20_crypt(chacha_state, b.block0, pad0, sizeof(b.block0));
+ poly1305_init(&poly1305_state, b.block0);
+
+ poly1305_update(&poly1305_state, ad, ad_len);
+ if (ad_len & 0xf)
+ poly1305_update(&poly1305_state, pad0, 0x10 - (ad_len & 0xf));
+
+ dst_len = src_len - POLY1305_DIGEST_SIZE;
+ poly1305_update(&poly1305_state, src, dst_len);
+ if (dst_len & 0xf)
+ poly1305_update(&poly1305_state, pad0, 0x10 - (dst_len & 0xf));
+
+ b.lens[0] = cpu_to_le64(ad_len);
+ b.lens[1] = cpu_to_le64(dst_len);
+ poly1305_update(&poly1305_state, (u8 *)b.lens, sizeof(b.lens));
+
+ poly1305_final(&poly1305_state, b.mac);
+
+ ret = crypto_memneq(b.mac, src + dst_len, POLY1305_DIGEST_SIZE);
+ if (likely(!ret))
+ chacha20_crypt(chacha_state, dst, src, dst_len);
+
+ memzero_explicit(&b, sizeof(b));
+
+ return !ret;
+}
+
+bool chacha20poly1305_decrypt(u8 *dst, const u8 *src, const size_t src_len,
+ const u8 *ad, const size_t ad_len,
+ const u64 nonce,
+ const u8 key[CHACHA20POLY1305_KEY_SIZE])
+{
+ u32 chacha_state[CHACHA_STATE_WORDS];
+ u32 k[CHACHA_KEY_WORDS];
+ __le64 iv[2];
+ bool ret;
+
+ chacha_load_key(k, key);
+
+ iv[0] = 0;
+ iv[1] = cpu_to_le64(nonce);
+
+ chacha_init(chacha_state, k, (u8 *)iv);
+ ret = __chacha20poly1305_decrypt(dst, src, src_len, ad, ad_len,
+ chacha_state);
+
+ memzero_explicit(chacha_state, sizeof(chacha_state));
+ memzero_explicit(iv, sizeof(iv));
+ memzero_explicit(k, sizeof(k));
+ return ret;
+}
+EXPORT_SYMBOL(chacha20poly1305_decrypt);
+
+bool xchacha20poly1305_decrypt(u8 *dst, const u8 *src, const size_t src_len,
+ const u8 *ad, const size_t ad_len,
+ const u8 nonce[XCHACHA20POLY1305_NONCE_SIZE],
+ const u8 key[CHACHA20POLY1305_KEY_SIZE])
+{
+ u32 chacha_state[CHACHA_STATE_WORDS];
+
+ xchacha_init(chacha_state, key, nonce);
+ return __chacha20poly1305_decrypt(dst, src, src_len, ad, ad_len,
+ chacha_state);
+}
+EXPORT_SYMBOL(xchacha20poly1305_decrypt);
+
+static
+bool chacha20poly1305_crypt_sg_inplace(struct scatterlist *src,
+ const size_t src_len,
+ const u8 *ad, const size_t ad_len,
+ const u64 nonce,
+ const u8 key[CHACHA20POLY1305_KEY_SIZE],
+ int encrypt)
+{
+ const u8 *pad0 = page_address(ZERO_PAGE(0));
+ struct poly1305_desc_ctx poly1305_state;
+ u32 chacha_state[CHACHA_STATE_WORDS];
+ struct sg_mapping_iter miter;
+ size_t partial = 0;
+ unsigned int flags;
+ bool ret = true;
+ int sl;
+ union {
+ struct {
+ u32 k[CHACHA_KEY_WORDS];
+ __le64 iv[2];
+ };
+ u8 block0[POLY1305_KEY_SIZE];
+ u8 chacha_stream[CHACHA_BLOCK_SIZE];
+ struct {
+ u8 mac[2][POLY1305_DIGEST_SIZE];
+ };
+ __le64 lens[2];
+ } b __aligned(16);
+
+ if (WARN_ON(src_len > INT_MAX))
+ return false;
+
+ chacha_load_key(b.k, key);
+
+ b.iv[0] = 0;
+ b.iv[1] = cpu_to_le64(nonce);
+
+ chacha_init(chacha_state, b.k, (u8 *)b.iv);
+ chacha20_crypt(chacha_state, b.block0, pad0, sizeof(b.block0));
+ poly1305_init(&poly1305_state, b.block0);
+
+ if (unlikely(ad_len)) {
+ poly1305_update(&poly1305_state, ad, ad_len);
+ if (ad_len & 0xf)
+ poly1305_update(&poly1305_state, pad0, 0x10 - (ad_len & 0xf));
+ }
+
+ flags = SG_MITER_TO_SG;
+ if (!preemptible())
+ flags |= SG_MITER_ATOMIC;
+
+ sg_miter_start(&miter, src, sg_nents(src), flags);
+
+ for (sl = src_len; sl > 0 && sg_miter_next(&miter); sl -= miter.length) {
+ u8 *addr = miter.addr;
+ size_t length = min_t(size_t, sl, miter.length);
+
+ if (!encrypt)
+ poly1305_update(&poly1305_state, addr, length);
+
+ if (unlikely(partial)) {
+ size_t l = min(length, CHACHA_BLOCK_SIZE - partial);
+
+ crypto_xor(addr, b.chacha_stream + partial, l);
+ partial = (partial + l) & (CHACHA_BLOCK_SIZE - 1);
+
+ addr += l;
+ length -= l;
+ }
+
+ if (likely(length >= CHACHA_BLOCK_SIZE || length == sl)) {
+ size_t l = length;
+
+ if (unlikely(length < sl))
+ l &= ~(CHACHA_BLOCK_SIZE - 1);
+ chacha20_crypt(chacha_state, addr, addr, l);
+ addr += l;
+ length -= l;
+ }
+
+ if (unlikely(length > 0)) {
+ chacha20_crypt(chacha_state, b.chacha_stream, pad0,
+ CHACHA_BLOCK_SIZE);
+ crypto_xor(addr, b.chacha_stream, length);
+ partial = length;
+ }
+
+ if (encrypt)
+ poly1305_update(&poly1305_state, miter.addr,
+ min_t(size_t, sl, miter.length));
+ }
+
+ if (src_len & 0xf)
+ poly1305_update(&poly1305_state, pad0, 0x10 - (src_len & 0xf));
+
+ b.lens[0] = cpu_to_le64(ad_len);
+ b.lens[1] = cpu_to_le64(src_len);
+ poly1305_update(&poly1305_state, (u8 *)b.lens, sizeof(b.lens));
+
+ if (likely(sl <= -POLY1305_DIGEST_SIZE)) {
+ if (encrypt) {
+ poly1305_final(&poly1305_state,
+ miter.addr + miter.length + sl);
+ ret = true;
+ } else {
+ poly1305_final(&poly1305_state, b.mac[0]);
+ ret = !crypto_memneq(b.mac[0],
+ miter.addr + miter.length + sl,
+ POLY1305_DIGEST_SIZE);
+ }
+ }
+
+ sg_miter_stop(&miter);
+
+ if (unlikely(sl > -POLY1305_DIGEST_SIZE)) {
+ poly1305_final(&poly1305_state, b.mac[1]);
+ scatterwalk_map_and_copy(b.mac[encrypt], src, src_len,
+ sizeof(b.mac[1]), encrypt);
+ ret = encrypt ||
+ !crypto_memneq(b.mac[0], b.mac[1], POLY1305_DIGEST_SIZE);
+ }
+
+ memzero_explicit(chacha_state, sizeof(chacha_state));
+ memzero_explicit(&b, sizeof(b));
+
+ return ret;
+}
+
+bool chacha20poly1305_encrypt_sg_inplace(struct scatterlist *src, size_t src_len,
+ const u8 *ad, const size_t ad_len,
+ const u64 nonce,
+ const u8 key[CHACHA20POLY1305_KEY_SIZE])
+{
+ return chacha20poly1305_crypt_sg_inplace(src, src_len, ad, ad_len,
+ nonce, key, 1);
+}
+EXPORT_SYMBOL(chacha20poly1305_encrypt_sg_inplace);
+
+bool chacha20poly1305_decrypt_sg_inplace(struct scatterlist *src, size_t src_len,
+ const u8 *ad, const size_t ad_len,
+ const u64 nonce,
+ const u8 key[CHACHA20POLY1305_KEY_SIZE])
+{
+ if (unlikely(src_len < POLY1305_DIGEST_SIZE))
+ return false;
+
+ return chacha20poly1305_crypt_sg_inplace(src,
+ src_len - POLY1305_DIGEST_SIZE,
+ ad, ad_len, nonce, key, 0);
+}
+EXPORT_SYMBOL(chacha20poly1305_decrypt_sg_inplace);
+
+static int __init mod_init(void)
+{
+ if (!IS_ENABLED(CONFIG_CRYPTO_MANAGER_DISABLE_TESTS) &&
+ WARN_ON(!chacha20poly1305_selftest()))
+ return -ENODEV;
+ return 0;
+}
+
+module_init(mod_init);
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("ChaCha20Poly1305 AEAD construction");
+MODULE_AUTHOR("Jason A. Donenfeld <Jason@zx2c4.com>");
diff --git a/lib/crypto/curve25519-fiat32.c b/lib/crypto/curve25519-fiat32.c
new file mode 100644
index 0000000..2fde0ec
--- /dev/null
+++ b/lib/crypto/curve25519-fiat32.c
@@ -0,0 +1,864 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2015-2016 The fiat-crypto Authors.
+ * Copyright (C) 2018-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ *
+ * This is a machine-generated formally verified implementation of Curve25519
+ * ECDH from: <https://github.com/mit-plv/fiat-crypto>. Though originally
+ * machine generated, it has been tweaked to be suitable for use in the kernel.
+ * It is optimized for 32-bit machines and machines that cannot work efficiently
+ * with 128-bit integer types.
+ */
+
+#include <asm/unaligned.h>
+#include <crypto/curve25519.h>
+#include <linux/string.h>
+
+/* fe means field element. Here the field is \Z/(2^255-19). An element t,
+ * entries t[0]...t[9], represents the integer t[0]+2^26 t[1]+2^51 t[2]+2^77
+ * t[3]+2^102 t[4]+...+2^230 t[9].
+ * fe limbs are bounded by 1.125*2^26,1.125*2^25,1.125*2^26,1.125*2^25,etc.
+ * Multiplication and carrying produce fe from fe_loose.
+ */
+typedef struct fe { u32 v[10]; } fe;
+
+/* fe_loose limbs are bounded by 3.375*2^26,3.375*2^25,3.375*2^26,3.375*2^25,etc
+ * Addition and subtraction produce fe_loose from (fe, fe).
+ */
+typedef struct fe_loose { u32 v[10]; } fe_loose;
+
+static __always_inline void fe_frombytes_impl(u32 h[10], const u8 *s)
+{
+ /* Ignores top bit of s. */
+ u32 a0 = get_unaligned_le32(s);
+ u32 a1 = get_unaligned_le32(s+4);
+ u32 a2 = get_unaligned_le32(s+8);
+ u32 a3 = get_unaligned_le32(s+12);
+ u32 a4 = get_unaligned_le32(s+16);
+ u32 a5 = get_unaligned_le32(s+20);
+ u32 a6 = get_unaligned_le32(s+24);
+ u32 a7 = get_unaligned_le32(s+28);
+ h[0] = a0&((1<<26)-1); /* 26 used, 32-26 left. 26 */
+ h[1] = (a0>>26) | ((a1&((1<<19)-1))<< 6); /* (32-26) + 19 = 6+19 = 25 */
+ h[2] = (a1>>19) | ((a2&((1<<13)-1))<<13); /* (32-19) + 13 = 13+13 = 26 */
+ h[3] = (a2>>13) | ((a3&((1<< 6)-1))<<19); /* (32-13) + 6 = 19+ 6 = 25 */
+ h[4] = (a3>> 6); /* (32- 6) = 26 */
+ h[5] = a4&((1<<25)-1); /* 25 */
+ h[6] = (a4>>25) | ((a5&((1<<19)-1))<< 7); /* (32-25) + 19 = 7+19 = 26 */
+ h[7] = (a5>>19) | ((a6&((1<<12)-1))<<13); /* (32-19) + 12 = 13+12 = 25 */
+ h[8] = (a6>>12) | ((a7&((1<< 6)-1))<<20); /* (32-12) + 6 = 20+ 6 = 26 */
+ h[9] = (a7>> 6)&((1<<25)-1); /* 25 */
+}
+
+static __always_inline void fe_frombytes(fe *h, const u8 *s)
+{
+ fe_frombytes_impl(h->v, s);
+}
+
+static __always_inline u8 /*bool*/
+addcarryx_u25(u8 /*bool*/ c, u32 a, u32 b, u32 *low)
+{
+ /* This function extracts 25 bits of result and 1 bit of carry
+ * (26 total), so a 32-bit intermediate is sufficient.
+ */
+ u32 x = a + b + c;
+ *low = x & ((1 << 25) - 1);
+ return (x >> 25) & 1;
+}
+
+static __always_inline u8 /*bool*/
+addcarryx_u26(u8 /*bool*/ c, u32 a, u32 b, u32 *low)
+{
+ /* This function extracts 26 bits of result and 1 bit of carry
+ * (27 total), so a 32-bit intermediate is sufficient.
+ */
+ u32 x = a + b + c;
+ *low = x & ((1 << 26) - 1);
+ return (x >> 26) & 1;
+}
+
+static __always_inline u8 /*bool*/
+subborrow_u25(u8 /*bool*/ c, u32 a, u32 b, u32 *low)
+{
+ /* This function extracts 25 bits of result and 1 bit of borrow
+ * (26 total), so a 32-bit intermediate is sufficient.
+ */
+ u32 x = a - b - c;
+ *low = x & ((1 << 25) - 1);
+ return x >> 31;
+}
+
+static __always_inline u8 /*bool*/
+subborrow_u26(u8 /*bool*/ c, u32 a, u32 b, u32 *low)
+{
+ /* This function extracts 26 bits of result and 1 bit of borrow
+ *(27 total), so a 32-bit intermediate is sufficient.
+ */
+ u32 x = a - b - c;
+ *low = x & ((1 << 26) - 1);
+ return x >> 31;
+}
+
+static __always_inline u32 cmovznz32(u32 t, u32 z, u32 nz)
+{
+ t = -!!t; /* all set if nonzero, 0 if 0 */
+ return (t&nz) | ((~t)&z);
+}
+
+static __always_inline void fe_freeze(u32 out[10], const u32 in1[10])
+{
+ { const u32 x17 = in1[9];
+ { const u32 x18 = in1[8];
+ { const u32 x16 = in1[7];
+ { const u32 x14 = in1[6];
+ { const u32 x12 = in1[5];
+ { const u32 x10 = in1[4];
+ { const u32 x8 = in1[3];
+ { const u32 x6 = in1[2];
+ { const u32 x4 = in1[1];
+ { const u32 x2 = in1[0];
+ { u32 x20; u8/*bool*/ x21 = subborrow_u26(0x0, x2, 0x3ffffed, &x20);
+ { u32 x23; u8/*bool*/ x24 = subborrow_u25(x21, x4, 0x1ffffff, &x23);
+ { u32 x26; u8/*bool*/ x27 = subborrow_u26(x24, x6, 0x3ffffff, &x26);
+ { u32 x29; u8/*bool*/ x30 = subborrow_u25(x27, x8, 0x1ffffff, &x29);
+ { u32 x32; u8/*bool*/ x33 = subborrow_u26(x30, x10, 0x3ffffff, &x32);
+ { u32 x35; u8/*bool*/ x36 = subborrow_u25(x33, x12, 0x1ffffff, &x35);
+ { u32 x38; u8/*bool*/ x39 = subborrow_u26(x36, x14, 0x3ffffff, &x38);
+ { u32 x41; u8/*bool*/ x42 = subborrow_u25(x39, x16, 0x1ffffff, &x41);
+ { u32 x44; u8/*bool*/ x45 = subborrow_u26(x42, x18, 0x3ffffff, &x44);
+ { u32 x47; u8/*bool*/ x48 = subborrow_u25(x45, x17, 0x1ffffff, &x47);
+ { u32 x49 = cmovznz32(x48, 0x0, 0xffffffff);
+ { u32 x50 = (x49 & 0x3ffffed);
+ { u32 x52; u8/*bool*/ x53 = addcarryx_u26(0x0, x20, x50, &x52);
+ { u32 x54 = (x49 & 0x1ffffff);
+ { u32 x56; u8/*bool*/ x57 = addcarryx_u25(x53, x23, x54, &x56);
+ { u32 x58 = (x49 & 0x3ffffff);
+ { u32 x60; u8/*bool*/ x61 = addcarryx_u26(x57, x26, x58, &x60);
+ { u32 x62 = (x49 & 0x1ffffff);
+ { u32 x64; u8/*bool*/ x65 = addcarryx_u25(x61, x29, x62, &x64);
+ { u32 x66 = (x49 & 0x3ffffff);
+ { u32 x68; u8/*bool*/ x69 = addcarryx_u26(x65, x32, x66, &x68);
+ { u32 x70 = (x49 & 0x1ffffff);
+ { u32 x72; u8/*bool*/ x73 = addcarryx_u25(x69, x35, x70, &x72);
+ { u32 x74 = (x49 & 0x3ffffff);
+ { u32 x76; u8/*bool*/ x77 = addcarryx_u26(x73, x38, x74, &x76);
+ { u32 x78 = (x49 & 0x1ffffff);
+ { u32 x80; u8/*bool*/ x81 = addcarryx_u25(x77, x41, x78, &x80);
+ { u32 x82 = (x49 & 0x3ffffff);
+ { u32 x84; u8/*bool*/ x85 = addcarryx_u26(x81, x44, x82, &x84);
+ { u32 x86 = (x49 & 0x1ffffff);
+ { u32 x88; addcarryx_u25(x85, x47, x86, &x88);
+ out[0] = x52;
+ out[1] = x56;
+ out[2] = x60;
+ out[3] = x64;
+ out[4] = x68;
+ out[5] = x72;
+ out[6] = x76;
+ out[7] = x80;
+ out[8] = x84;
+ out[9] = x88;
+ }}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}
+}
+
+static __always_inline void fe_tobytes(u8 s[32], const fe *f)
+{
+ u32 h[10];
+ fe_freeze(h, f->v);
+ s[0] = h[0] >> 0;
+ s[1] = h[0] >> 8;
+ s[2] = h[0] >> 16;
+ s[3] = (h[0] >> 24) | (h[1] << 2);
+ s[4] = h[1] >> 6;
+ s[5] = h[1] >> 14;
+ s[6] = (h[1] >> 22) | (h[2] << 3);
+ s[7] = h[2] >> 5;
+ s[8] = h[2] >> 13;
+ s[9] = (h[2] >> 21) | (h[3] << 5);
+ s[10] = h[3] >> 3;
+ s[11] = h[3] >> 11;
+ s[12] = (h[3] >> 19) | (h[4] << 6);
+ s[13] = h[4] >> 2;
+ s[14] = h[4] >> 10;
+ s[15] = h[4] >> 18;
+ s[16] = h[5] >> 0;
+ s[17] = h[5] >> 8;
+ s[18] = h[5] >> 16;
+ s[19] = (h[5] >> 24) | (h[6] << 1);
+ s[20] = h[6] >> 7;
+ s[21] = h[6] >> 15;
+ s[22] = (h[6] >> 23) | (h[7] << 3);
+ s[23] = h[7] >> 5;
+ s[24] = h[7] >> 13;
+ s[25] = (h[7] >> 21) | (h[8] << 4);
+ s[26] = h[8] >> 4;
+ s[27] = h[8] >> 12;
+ s[28] = (h[8] >> 20) | (h[9] << 6);
+ s[29] = h[9] >> 2;
+ s[30] = h[9] >> 10;
+ s[31] = h[9] >> 18;
+}
+
+/* h = f */
+static __always_inline void fe_copy(fe *h, const fe *f)
+{
+ memmove(h, f, sizeof(u32) * 10);
+}
+
+static __always_inline void fe_copy_lt(fe_loose *h, const fe *f)
+{
+ memmove(h, f, sizeof(u32) * 10);
+}
+
+/* h = 0 */
+static __always_inline void fe_0(fe *h)
+{
+ memset(h, 0, sizeof(u32) * 10);
+}
+
+/* h = 1 */
+static __always_inline void fe_1(fe *h)
+{
+ memset(h, 0, sizeof(u32) * 10);
+ h->v[0] = 1;
+}
+
+static noinline void fe_add_impl(u32 out[10], const u32 in1[10], const u32 in2[10])
+{
+ { const u32 x20 = in1[9];
+ { const u32 x21 = in1[8];
+ { const u32 x19 = in1[7];
+ { const u32 x17 = in1[6];
+ { const u32 x15 = in1[5];
+ { const u32 x13 = in1[4];
+ { const u32 x11 = in1[3];
+ { const u32 x9 = in1[2];
+ { const u32 x7 = in1[1];
+ { const u32 x5 = in1[0];
+ { const u32 x38 = in2[9];
+ { const u32 x39 = in2[8];
+ { const u32 x37 = in2[7];
+ { const u32 x35 = in2[6];
+ { const u32 x33 = in2[5];
+ { const u32 x31 = in2[4];
+ { const u32 x29 = in2[3];
+ { const u32 x27 = in2[2];
+ { const u32 x25 = in2[1];
+ { const u32 x23 = in2[0];
+ out[0] = (x5 + x23);
+ out[1] = (x7 + x25);
+ out[2] = (x9 + x27);
+ out[3] = (x11 + x29);
+ out[4] = (x13 + x31);
+ out[5] = (x15 + x33);
+ out[6] = (x17 + x35);
+ out[7] = (x19 + x37);
+ out[8] = (x21 + x39);
+ out[9] = (x20 + x38);
+ }}}}}}}}}}}}}}}}}}}}
+}
+
+/* h = f + g
+ * Can overlap h with f or g.
+ */
+static __always_inline void fe_add(fe_loose *h, const fe *f, const fe *g)
+{
+ fe_add_impl(h->v, f->v, g->v);
+}
+
+static noinline void fe_sub_impl(u32 out[10], const u32 in1[10], const u32 in2[10])
+{
+ { const u32 x20 = in1[9];
+ { const u32 x21 = in1[8];
+ { const u32 x19 = in1[7];
+ { const u32 x17 = in1[6];
+ { const u32 x15 = in1[5];
+ { const u32 x13 = in1[4];
+ { const u32 x11 = in1[3];
+ { const u32 x9 = in1[2];
+ { const u32 x7 = in1[1];
+ { const u32 x5 = in1[0];
+ { const u32 x38 = in2[9];
+ { const u32 x39 = in2[8];
+ { const u32 x37 = in2[7];
+ { const u32 x35 = in2[6];
+ { const u32 x33 = in2[5];
+ { const u32 x31 = in2[4];
+ { const u32 x29 = in2[3];
+ { const u32 x27 = in2[2];
+ { const u32 x25 = in2[1];
+ { const u32 x23 = in2[0];
+ out[0] = ((0x7ffffda + x5) - x23);
+ out[1] = ((0x3fffffe + x7) - x25);
+ out[2] = ((0x7fffffe + x9) - x27);
+ out[3] = ((0x3fffffe + x11) - x29);
+ out[4] = ((0x7fffffe + x13) - x31);
+ out[5] = ((0x3fffffe + x15) - x33);
+ out[6] = ((0x7fffffe + x17) - x35);
+ out[7] = ((0x3fffffe + x19) - x37);
+ out[8] = ((0x7fffffe + x21) - x39);
+ out[9] = ((0x3fffffe + x20) - x38);
+ }}}}}}}}}}}}}}}}}}}}
+}
+
+/* h = f - g
+ * Can overlap h with f or g.
+ */
+static __always_inline void fe_sub(fe_loose *h, const fe *f, const fe *g)
+{
+ fe_sub_impl(h->v, f->v, g->v);
+}
+
+static noinline void fe_mul_impl(u32 out[10], const u32 in1[10], const u32 in2[10])
+{
+ { const u32 x20 = in1[9];
+ { const u32 x21 = in1[8];
+ { const u32 x19 = in1[7];
+ { const u32 x17 = in1[6];
+ { const u32 x15 = in1[5];
+ { const u32 x13 = in1[4];
+ { const u32 x11 = in1[3];
+ { const u32 x9 = in1[2];
+ { const u32 x7 = in1[1];
+ { const u32 x5 = in1[0];
+ { const u32 x38 = in2[9];
+ { const u32 x39 = in2[8];
+ { const u32 x37 = in2[7];
+ { const u32 x35 = in2[6];
+ { const u32 x33 = in2[5];
+ { const u32 x31 = in2[4];
+ { const u32 x29 = in2[3];
+ { const u32 x27 = in2[2];
+ { const u32 x25 = in2[1];
+ { const u32 x23 = in2[0];
+ { u64 x40 = ((u64)x23 * x5);
+ { u64 x41 = (((u64)x23 * x7) + ((u64)x25 * x5));
+ { u64 x42 = ((((u64)(0x2 * x25) * x7) + ((u64)x23 * x9)) + ((u64)x27 * x5));
+ { u64 x43 = (((((u64)x25 * x9) + ((u64)x27 * x7)) + ((u64)x23 * x11)) + ((u64)x29 * x5));
+ { u64 x44 = (((((u64)x27 * x9) + (0x2 * (((u64)x25 * x11) + ((u64)x29 * x7)))) + ((u64)x23 * x13)) + ((u64)x31 * x5));
+ { u64 x45 = (((((((u64)x27 * x11) + ((u64)x29 * x9)) + ((u64)x25 * x13)) + ((u64)x31 * x7)) + ((u64)x23 * x15)) + ((u64)x33 * x5));
+ { u64 x46 = (((((0x2 * ((((u64)x29 * x11) + ((u64)x25 * x15)) + ((u64)x33 * x7))) + ((u64)x27 * x13)) + ((u64)x31 * x9)) + ((u64)x23 * x17)) + ((u64)x35 * x5));
+ { u64 x47 = (((((((((u64)x29 * x13) + ((u64)x31 * x11)) + ((u64)x27 * x15)) + ((u64)x33 * x9)) + ((u64)x25 * x17)) + ((u64)x35 * x7)) + ((u64)x23 * x19)) + ((u64)x37 * x5));
+ { u64 x48 = (((((((u64)x31 * x13) + (0x2 * (((((u64)x29 * x15) + ((u64)x33 * x11)) + ((u64)x25 * x19)) + ((u64)x37 * x7)))) + ((u64)x27 * x17)) + ((u64)x35 * x9)) + ((u64)x23 * x21)) + ((u64)x39 * x5));
+ { u64 x49 = (((((((((((u64)x31 * x15) + ((u64)x33 * x13)) + ((u64)x29 * x17)) + ((u64)x35 * x11)) + ((u64)x27 * x19)) + ((u64)x37 * x9)) + ((u64)x25 * x21)) + ((u64)x39 * x7)) + ((u64)x23 * x20)) + ((u64)x38 * x5));
+ { u64 x50 = (((((0x2 * ((((((u64)x33 * x15) + ((u64)x29 * x19)) + ((u64)x37 * x11)) + ((u64)x25 * x20)) + ((u64)x38 * x7))) + ((u64)x31 * x17)) + ((u64)x35 * x13)) + ((u64)x27 * x21)) + ((u64)x39 * x9));
+ { u64 x51 = (((((((((u64)x33 * x17) + ((u64)x35 * x15)) + ((u64)x31 * x19)) + ((u64)x37 * x13)) + ((u64)x29 * x21)) + ((u64)x39 * x11)) + ((u64)x27 * x20)) + ((u64)x38 * x9));
+ { u64 x52 = (((((u64)x35 * x17) + (0x2 * (((((u64)x33 * x19) + ((u64)x37 * x15)) + ((u64)x29 * x20)) + ((u64)x38 * x11)))) + ((u64)x31 * x21)) + ((u64)x39 * x13));
+ { u64 x53 = (((((((u64)x35 * x19) + ((u64)x37 * x17)) + ((u64)x33 * x21)) + ((u64)x39 * x15)) + ((u64)x31 * x20)) + ((u64)x38 * x13));
+ { u64 x54 = (((0x2 * ((((u64)x37 * x19) + ((u64)x33 * x20)) + ((u64)x38 * x15))) + ((u64)x35 * x21)) + ((u64)x39 * x17));
+ { u64 x55 = (((((u64)x37 * x21) + ((u64)x39 * x19)) + ((u64)x35 * x20)) + ((u64)x38 * x17));
+ { u64 x56 = (((u64)x39 * x21) + (0x2 * (((u64)x37 * x20) + ((u64)x38 * x19))));
+ { u64 x57 = (((u64)x39 * x20) + ((u64)x38 * x21));
+ { u64 x58 = ((u64)(0x2 * x38) * x20);
+ { u64 x59 = (x48 + (x58 << 0x4));
+ { u64 x60 = (x59 + (x58 << 0x1));
+ { u64 x61 = (x60 + x58);
+ { u64 x62 = (x47 + (x57 << 0x4));
+ { u64 x63 = (x62 + (x57 << 0x1));
+ { u64 x64 = (x63 + x57);
+ { u64 x65 = (x46 + (x56 << 0x4));
+ { u64 x66 = (x65 + (x56 << 0x1));
+ { u64 x67 = (x66 + x56);
+ { u64 x68 = (x45 + (x55 << 0x4));
+ { u64 x69 = (x68 + (x55 << 0x1));
+ { u64 x70 = (x69 + x55);
+ { u64 x71 = (x44 + (x54 << 0x4));
+ { u64 x72 = (x71 + (x54 << 0x1));
+ { u64 x73 = (x72 + x54);
+ { u64 x74 = (x43 + (x53 << 0x4));
+ { u64 x75 = (x74 + (x53 << 0x1));
+ { u64 x76 = (x75 + x53);
+ { u64 x77 = (x42 + (x52 << 0x4));
+ { u64 x78 = (x77 + (x52 << 0x1));
+ { u64 x79 = (x78 + x52);
+ { u64 x80 = (x41 + (x51 << 0x4));
+ { u64 x81 = (x80 + (x51 << 0x1));
+ { u64 x82 = (x81 + x51);
+ { u64 x83 = (x40 + (x50 << 0x4));
+ { u64 x84 = (x83 + (x50 << 0x1));
+ { u64 x85 = (x84 + x50);
+ { u64 x86 = (x85 >> 0x1a);
+ { u32 x87 = ((u32)x85 & 0x3ffffff);
+ { u64 x88 = (x86 + x82);
+ { u64 x89 = (x88 >> 0x19);
+ { u32 x90 = ((u32)x88 & 0x1ffffff);
+ { u64 x91 = (x89 + x79);
+ { u64 x92 = (x91 >> 0x1a);
+ { u32 x93 = ((u32)x91 & 0x3ffffff);
+ { u64 x94 = (x92 + x76);
+ { u64 x95 = (x94 >> 0x19);
+ { u32 x96 = ((u32)x94 & 0x1ffffff);
+ { u64 x97 = (x95 + x73);
+ { u64 x98 = (x97 >> 0x1a);
+ { u32 x99 = ((u32)x97 & 0x3ffffff);
+ { u64 x100 = (x98 + x70);
+ { u64 x101 = (x100 >> 0x19);
+ { u32 x102 = ((u32)x100 & 0x1ffffff);
+ { u64 x103 = (x101 + x67);
+ { u64 x104 = (x103 >> 0x1a);
+ { u32 x105 = ((u32)x103 & 0x3ffffff);
+ { u64 x106 = (x104 + x64);
+ { u64 x107 = (x106 >> 0x19);
+ { u32 x108 = ((u32)x106 & 0x1ffffff);
+ { u64 x109 = (x107 + x61);
+ { u64 x110 = (x109 >> 0x1a);
+ { u32 x111 = ((u32)x109 & 0x3ffffff);
+ { u64 x112 = (x110 + x49);
+ { u64 x113 = (x112 >> 0x19);
+ { u32 x114 = ((u32)x112 & 0x1ffffff);
+ { u64 x115 = (x87 + (0x13 * x113));
+ { u32 x116 = (u32) (x115 >> 0x1a);
+ { u32 x117 = ((u32)x115 & 0x3ffffff);
+ { u32 x118 = (x116 + x90);
+ { u32 x119 = (x118 >> 0x19);
+ { u32 x120 = (x118 & 0x1ffffff);
+ out[0] = x117;
+ out[1] = x120;
+ out[2] = (x119 + x93);
+ out[3] = x96;
+ out[4] = x99;
+ out[5] = x102;
+ out[6] = x105;
+ out[7] = x108;
+ out[8] = x111;
+ out[9] = x114;
+ }}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}
+}
+
+static __always_inline void fe_mul_ttt(fe *h, const fe *f, const fe *g)
+{
+ fe_mul_impl(h->v, f->v, g->v);
+}
+
+static __always_inline void fe_mul_tlt(fe *h, const fe_loose *f, const fe *g)
+{
+ fe_mul_impl(h->v, f->v, g->v);
+}
+
+static __always_inline void
+fe_mul_tll(fe *h, const fe_loose *f, const fe_loose *g)
+{
+ fe_mul_impl(h->v, f->v, g->v);
+}
+
+static noinline void fe_sqr_impl(u32 out[10], const u32 in1[10])
+{
+ { const u32 x17 = in1[9];
+ { const u32 x18 = in1[8];
+ { const u32 x16 = in1[7];
+ { const u32 x14 = in1[6];
+ { const u32 x12 = in1[5];
+ { const u32 x10 = in1[4];
+ { const u32 x8 = in1[3];
+ { const u32 x6 = in1[2];
+ { const u32 x4 = in1[1];
+ { const u32 x2 = in1[0];
+ { u64 x19 = ((u64)x2 * x2);
+ { u64 x20 = ((u64)(0x2 * x2) * x4);
+ { u64 x21 = (0x2 * (((u64)x4 * x4) + ((u64)x2 * x6)));
+ { u64 x22 = (0x2 * (((u64)x4 * x6) + ((u64)x2 * x8)));
+ { u64 x23 = ((((u64)x6 * x6) + ((u64)(0x4 * x4) * x8)) + ((u64)(0x2 * x2) * x10));
+ { u64 x24 = (0x2 * ((((u64)x6 * x8) + ((u64)x4 * x10)) + ((u64)x2 * x12)));
+ { u64 x25 = (0x2 * (((((u64)x8 * x8) + ((u64)x6 * x10)) + ((u64)x2 * x14)) + ((u64)(0x2 * x4) * x12)));
+ { u64 x26 = (0x2 * (((((u64)x8 * x10) + ((u64)x6 * x12)) + ((u64)x4 * x14)) + ((u64)x2 * x16)));
+ { u64 x27 = (((u64)x10 * x10) + (0x2 * ((((u64)x6 * x14) + ((u64)x2 * x18)) + (0x2 * (((u64)x4 * x16) + ((u64)x8 * x12))))));
+ { u64 x28 = (0x2 * ((((((u64)x10 * x12) + ((u64)x8 * x14)) + ((u64)x6 * x16)) + ((u64)x4 * x18)) + ((u64)x2 * x17)));
+ { u64 x29 = (0x2 * (((((u64)x12 * x12) + ((u64)x10 * x14)) + ((u64)x6 * x18)) + (0x2 * (((u64)x8 * x16) + ((u64)x4 * x17)))));
+ { u64 x30 = (0x2 * (((((u64)x12 * x14) + ((u64)x10 * x16)) + ((u64)x8 * x18)) + ((u64)x6 * x17)));
+ { u64 x31 = (((u64)x14 * x14) + (0x2 * (((u64)x10 * x18) + (0x2 * (((u64)x12 * x16) + ((u64)x8 * x17))))));
+ { u64 x32 = (0x2 * ((((u64)x14 * x16) + ((u64)x12 * x18)) + ((u64)x10 * x17)));
+ { u64 x33 = (0x2 * ((((u64)x16 * x16) + ((u64)x14 * x18)) + ((u64)(0x2 * x12) * x17)));
+ { u64 x34 = (0x2 * (((u64)x16 * x18) + ((u64)x14 * x17)));
+ { u64 x35 = (((u64)x18 * x18) + ((u64)(0x4 * x16) * x17));
+ { u64 x36 = ((u64)(0x2 * x18) * x17);
+ { u64 x37 = ((u64)(0x2 * x17) * x17);
+ { u64 x38 = (x27 + (x37 << 0x4));
+ { u64 x39 = (x38 + (x37 << 0x1));
+ { u64 x40 = (x39 + x37);
+ { u64 x41 = (x26 + (x36 << 0x4));
+ { u64 x42 = (x41 + (x36 << 0x1));
+ { u64 x43 = (x42 + x36);
+ { u64 x44 = (x25 + (x35 << 0x4));
+ { u64 x45 = (x44 + (x35 << 0x1));
+ { u64 x46 = (x45 + x35);
+ { u64 x47 = (x24 + (x34 << 0x4));
+ { u64 x48 = (x47 + (x34 << 0x1));
+ { u64 x49 = (x48 + x34);
+ { u64 x50 = (x23 + (x33 << 0x4));
+ { u64 x51 = (x50 + (x33 << 0x1));
+ { u64 x52 = (x51 + x33);
+ { u64 x53 = (x22 + (x32 << 0x4));
+ { u64 x54 = (x53 + (x32 << 0x1));
+ { u64 x55 = (x54 + x32);
+ { u64 x56 = (x21 + (x31 << 0x4));
+ { u64 x57 = (x56 + (x31 << 0x1));
+ { u64 x58 = (x57 + x31);
+ { u64 x59 = (x20 + (x30 << 0x4));
+ { u64 x60 = (x59 + (x30 << 0x1));
+ { u64 x61 = (x60 + x30);
+ { u64 x62 = (x19 + (x29 << 0x4));
+ { u64 x63 = (x62 + (x29 << 0x1));
+ { u64 x64 = (x63 + x29);
+ { u64 x65 = (x64 >> 0x1a);
+ { u32 x66 = ((u32)x64 & 0x3ffffff);
+ { u64 x67 = (x65 + x61);
+ { u64 x68 = (x67 >> 0x19);
+ { u32 x69 = ((u32)x67 & 0x1ffffff);
+ { u64 x70 = (x68 + x58);
+ { u64 x71 = (x70 >> 0x1a);
+ { u32 x72 = ((u32)x70 & 0x3ffffff);
+ { u64 x73 = (x71 + x55);
+ { u64 x74 = (x73 >> 0x19);
+ { u32 x75 = ((u32)x73 & 0x1ffffff);
+ { u64 x76 = (x74 + x52);
+ { u64 x77 = (x76 >> 0x1a);
+ { u32 x78 = ((u32)x76 & 0x3ffffff);
+ { u64 x79 = (x77 + x49);
+ { u64 x80 = (x79 >> 0x19);
+ { u32 x81 = ((u32)x79 & 0x1ffffff);
+ { u64 x82 = (x80 + x46);
+ { u64 x83 = (x82 >> 0x1a);
+ { u32 x84 = ((u32)x82 & 0x3ffffff);
+ { u64 x85 = (x83 + x43);
+ { u64 x86 = (x85 >> 0x19);
+ { u32 x87 = ((u32)x85 & 0x1ffffff);
+ { u64 x88 = (x86 + x40);
+ { u64 x89 = (x88 >> 0x1a);
+ { u32 x90 = ((u32)x88 & 0x3ffffff);
+ { u64 x91 = (x89 + x28);
+ { u64 x92 = (x91 >> 0x19);
+ { u32 x93 = ((u32)x91 & 0x1ffffff);
+ { u64 x94 = (x66 + (0x13 * x92));
+ { u32 x95 = (u32) (x94 >> 0x1a);
+ { u32 x96 = ((u32)x94 & 0x3ffffff);
+ { u32 x97 = (x95 + x69);
+ { u32 x98 = (x97 >> 0x19);
+ { u32 x99 = (x97 & 0x1ffffff);
+ out[0] = x96;
+ out[1] = x99;
+ out[2] = (x98 + x72);
+ out[3] = x75;
+ out[4] = x78;
+ out[5] = x81;
+ out[6] = x84;
+ out[7] = x87;
+ out[8] = x90;
+ out[9] = x93;
+ }}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}
+}
+
+static __always_inline void fe_sq_tl(fe *h, const fe_loose *f)
+{
+ fe_sqr_impl(h->v, f->v);
+}
+
+static __always_inline void fe_sq_tt(fe *h, const fe *f)
+{
+ fe_sqr_impl(h->v, f->v);
+}
+
+static __always_inline void fe_loose_invert(fe *out, const fe_loose *z)
+{
+ fe t0;
+ fe t1;
+ fe t2;
+ fe t3;
+ int i;
+
+ fe_sq_tl(&t0, z);
+ fe_sq_tt(&t1, &t0);
+ for (i = 1; i < 2; ++i)
+ fe_sq_tt(&t1, &t1);
+ fe_mul_tlt(&t1, z, &t1);
+ fe_mul_ttt(&t0, &t0, &t1);
+ fe_sq_tt(&t2, &t0);
+ fe_mul_ttt(&t1, &t1, &t2);
+ fe_sq_tt(&t2, &t1);
+ for (i = 1; i < 5; ++i)
+ fe_sq_tt(&t2, &t2);
+ fe_mul_ttt(&t1, &t2, &t1);
+ fe_sq_tt(&t2, &t1);
+ for (i = 1; i < 10; ++i)
+ fe_sq_tt(&t2, &t2);
+ fe_mul_ttt(&t2, &t2, &t1);
+ fe_sq_tt(&t3, &t2);
+ for (i = 1; i < 20; ++i)
+ fe_sq_tt(&t3, &t3);
+ fe_mul_ttt(&t2, &t3, &t2);
+ fe_sq_tt(&t2, &t2);
+ for (i = 1; i < 10; ++i)
+ fe_sq_tt(&t2, &t2);
+ fe_mul_ttt(&t1, &t2, &t1);
+ fe_sq_tt(&t2, &t1);
+ for (i = 1; i < 50; ++i)
+ fe_sq_tt(&t2, &t2);
+ fe_mul_ttt(&t2, &t2, &t1);
+ fe_sq_tt(&t3, &t2);
+ for (i = 1; i < 100; ++i)
+ fe_sq_tt(&t3, &t3);
+ fe_mul_ttt(&t2, &t3, &t2);
+ fe_sq_tt(&t2, &t2);
+ for (i = 1; i < 50; ++i)
+ fe_sq_tt(&t2, &t2);
+ fe_mul_ttt(&t1, &t2, &t1);
+ fe_sq_tt(&t1, &t1);
+ for (i = 1; i < 5; ++i)
+ fe_sq_tt(&t1, &t1);
+ fe_mul_ttt(out, &t1, &t0);
+}
+
+static __always_inline void fe_invert(fe *out, const fe *z)
+{
+ fe_loose l;
+ fe_copy_lt(&l, z);
+ fe_loose_invert(out, &l);
+}
+
+/* Replace (f,g) with (g,f) if b == 1;
+ * replace (f,g) with (f,g) if b == 0.
+ *
+ * Preconditions: b in {0,1}
+ */
+static noinline void fe_cswap(fe *f, fe *g, unsigned int b)
+{
+ unsigned i;
+ b = 0 - b;
+ for (i = 0; i < 10; i++) {
+ u32 x = f->v[i] ^ g->v[i];
+ x &= b;
+ f->v[i] ^= x;
+ g->v[i] ^= x;
+ }
+}
+
+/* NOTE: based on fiat-crypto fe_mul, edited for in2=121666, 0, 0.*/
+static __always_inline void fe_mul_121666_impl(u32 out[10], const u32 in1[10])
+{
+ { const u32 x20 = in1[9];
+ { const u32 x21 = in1[8];
+ { const u32 x19 = in1[7];
+ { const u32 x17 = in1[6];
+ { const u32 x15 = in1[5];
+ { const u32 x13 = in1[4];
+ { const u32 x11 = in1[3];
+ { const u32 x9 = in1[2];
+ { const u32 x7 = in1[1];
+ { const u32 x5 = in1[0];
+ { const u32 x38 = 0;
+ { const u32 x39 = 0;
+ { const u32 x37 = 0;
+ { const u32 x35 = 0;
+ { const u32 x33 = 0;
+ { const u32 x31 = 0;
+ { const u32 x29 = 0;
+ { const u32 x27 = 0;
+ { const u32 x25 = 0;
+ { const u32 x23 = 121666;
+ { u64 x40 = ((u64)x23 * x5);
+ { u64 x41 = (((u64)x23 * x7) + ((u64)x25 * x5));
+ { u64 x42 = ((((u64)(0x2 * x25) * x7) + ((u64)x23 * x9)) + ((u64)x27 * x5));
+ { u64 x43 = (((((u64)x25 * x9) + ((u64)x27 * x7)) + ((u64)x23 * x11)) + ((u64)x29 * x5));
+ { u64 x44 = (((((u64)x27 * x9) + (0x2 * (((u64)x25 * x11) + ((u64)x29 * x7)))) + ((u64)x23 * x13)) + ((u64)x31 * x5));
+ { u64 x45 = (((((((u64)x27 * x11) + ((u64)x29 * x9)) + ((u64)x25 * x13)) + ((u64)x31 * x7)) + ((u64)x23 * x15)) + ((u64)x33 * x5));
+ { u64 x46 = (((((0x2 * ((((u64)x29 * x11) + ((u64)x25 * x15)) + ((u64)x33 * x7))) + ((u64)x27 * x13)) + ((u64)x31 * x9)) + ((u64)x23 * x17)) + ((u64)x35 * x5));
+ { u64 x47 = (((((((((u64)x29 * x13) + ((u64)x31 * x11)) + ((u64)x27 * x15)) + ((u64)x33 * x9)) + ((u64)x25 * x17)) + ((u64)x35 * x7)) + ((u64)x23 * x19)) + ((u64)x37 * x5));
+ { u64 x48 = (((((((u64)x31 * x13) + (0x2 * (((((u64)x29 * x15) + ((u64)x33 * x11)) + ((u64)x25 * x19)) + ((u64)x37 * x7)))) + ((u64)x27 * x17)) + ((u64)x35 * x9)) + ((u64)x23 * x21)) + ((u64)x39 * x5));
+ { u64 x49 = (((((((((((u64)x31 * x15) + ((u64)x33 * x13)) + ((u64)x29 * x17)) + ((u64)x35 * x11)) + ((u64)x27 * x19)) + ((u64)x37 * x9)) + ((u64)x25 * x21)) + ((u64)x39 * x7)) + ((u64)x23 * x20)) + ((u64)x38 * x5));
+ { u64 x50 = (((((0x2 * ((((((u64)x33 * x15) + ((u64)x29 * x19)) + ((u64)x37 * x11)) + ((u64)x25 * x20)) + ((u64)x38 * x7))) + ((u64)x31 * x17)) + ((u64)x35 * x13)) + ((u64)x27 * x21)) + ((u64)x39 * x9));
+ { u64 x51 = (((((((((u64)x33 * x17) + ((u64)x35 * x15)) + ((u64)x31 * x19)) + ((u64)x37 * x13)) + ((u64)x29 * x21)) + ((u64)x39 * x11)) + ((u64)x27 * x20)) + ((u64)x38 * x9));
+ { u64 x52 = (((((u64)x35 * x17) + (0x2 * (((((u64)x33 * x19) + ((u64)x37 * x15)) + ((u64)x29 * x20)) + ((u64)x38 * x11)))) + ((u64)x31 * x21)) + ((u64)x39 * x13));
+ { u64 x53 = (((((((u64)x35 * x19) + ((u64)x37 * x17)) + ((u64)x33 * x21)) + ((u64)x39 * x15)) + ((u64)x31 * x20)) + ((u64)x38 * x13));
+ { u64 x54 = (((0x2 * ((((u64)x37 * x19) + ((u64)x33 * x20)) + ((u64)x38 * x15))) + ((u64)x35 * x21)) + ((u64)x39 * x17));
+ { u64 x55 = (((((u64)x37 * x21) + ((u64)x39 * x19)) + ((u64)x35 * x20)) + ((u64)x38 * x17));
+ { u64 x56 = (((u64)x39 * x21) + (0x2 * (((u64)x37 * x20) + ((u64)x38 * x19))));
+ { u64 x57 = (((u64)x39 * x20) + ((u64)x38 * x21));
+ { u64 x58 = ((u64)(0x2 * x38) * x20);
+ { u64 x59 = (x48 + (x58 << 0x4));
+ { u64 x60 = (x59 + (x58 << 0x1));
+ { u64 x61 = (x60 + x58);
+ { u64 x62 = (x47 + (x57 << 0x4));
+ { u64 x63 = (x62 + (x57 << 0x1));
+ { u64 x64 = (x63 + x57);
+ { u64 x65 = (x46 + (x56 << 0x4));
+ { u64 x66 = (x65 + (x56 << 0x1));
+ { u64 x67 = (x66 + x56);
+ { u64 x68 = (x45 + (x55 << 0x4));
+ { u64 x69 = (x68 + (x55 << 0x1));
+ { u64 x70 = (x69 + x55);
+ { u64 x71 = (x44 + (x54 << 0x4));
+ { u64 x72 = (x71 + (x54 << 0x1));
+ { u64 x73 = (x72 + x54);
+ { u64 x74 = (x43 + (x53 << 0x4));
+ { u64 x75 = (x74 + (x53 << 0x1));
+ { u64 x76 = (x75 + x53);
+ { u64 x77 = (x42 + (x52 << 0x4));
+ { u64 x78 = (x77 + (x52 << 0x1));
+ { u64 x79 = (x78 + x52);
+ { u64 x80 = (x41 + (x51 << 0x4));
+ { u64 x81 = (x80 + (x51 << 0x1));
+ { u64 x82 = (x81 + x51);
+ { u64 x83 = (x40 + (x50 << 0x4));
+ { u64 x84 = (x83 + (x50 << 0x1));
+ { u64 x85 = (x84 + x50);
+ { u64 x86 = (x85 >> 0x1a);
+ { u32 x87 = ((u32)x85 & 0x3ffffff);
+ { u64 x88 = (x86 + x82);
+ { u64 x89 = (x88 >> 0x19);
+ { u32 x90 = ((u32)x88 & 0x1ffffff);
+ { u64 x91 = (x89 + x79);
+ { u64 x92 = (x91 >> 0x1a);
+ { u32 x93 = ((u32)x91 & 0x3ffffff);
+ { u64 x94 = (x92 + x76);
+ { u64 x95 = (x94 >> 0x19);
+ { u32 x96 = ((u32)x94 & 0x1ffffff);
+ { u64 x97 = (x95 + x73);
+ { u64 x98 = (x97 >> 0x1a);
+ { u32 x99 = ((u32)x97 & 0x3ffffff);
+ { u64 x100 = (x98 + x70);
+ { u64 x101 = (x100 >> 0x19);
+ { u32 x102 = ((u32)x100 & 0x1ffffff);
+ { u64 x103 = (x101 + x67);
+ { u64 x104 = (x103 >> 0x1a);
+ { u32 x105 = ((u32)x103 & 0x3ffffff);
+ { u64 x106 = (x104 + x64);
+ { u64 x107 = (x106 >> 0x19);
+ { u32 x108 = ((u32)x106 & 0x1ffffff);
+ { u64 x109 = (x107 + x61);
+ { u64 x110 = (x109 >> 0x1a);
+ { u32 x111 = ((u32)x109 & 0x3ffffff);
+ { u64 x112 = (x110 + x49);
+ { u64 x113 = (x112 >> 0x19);
+ { u32 x114 = ((u32)x112 & 0x1ffffff);
+ { u64 x115 = (x87 + (0x13 * x113));
+ { u32 x116 = (u32) (x115 >> 0x1a);
+ { u32 x117 = ((u32)x115 & 0x3ffffff);
+ { u32 x118 = (x116 + x90);
+ { u32 x119 = (x118 >> 0x19);
+ { u32 x120 = (x118 & 0x1ffffff);
+ out[0] = x117;
+ out[1] = x120;
+ out[2] = (x119 + x93);
+ out[3] = x96;
+ out[4] = x99;
+ out[5] = x102;
+ out[6] = x105;
+ out[7] = x108;
+ out[8] = x111;
+ out[9] = x114;
+ }}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}
+}
+
+static __always_inline void fe_mul121666(fe *h, const fe_loose *f)
+{
+ fe_mul_121666_impl(h->v, f->v);
+}
+
+void curve25519_generic(u8 out[CURVE25519_KEY_SIZE],
+ const u8 scalar[CURVE25519_KEY_SIZE],
+ const u8 point[CURVE25519_KEY_SIZE])
+{
+ fe x1, x2, z2, x3, z3;
+ fe_loose x2l, z2l, x3l;
+ unsigned swap = 0;
+ int pos;
+ u8 e[32];
+
+ memcpy(e, scalar, 32);
+ curve25519_clamp_secret(e);
+
+ /* The following implementation was transcribed to Coq and proven to
+ * correspond to unary scalar multiplication in affine coordinates given
+ * that x1 != 0 is the x coordinate of some point on the curve. It was
+ * also checked in Coq that doing a ladderstep with x1 = x3 = 0 gives
+ * z2' = z3' = 0, and z2 = z3 = 0 gives z2' = z3' = 0. The statement was
+ * quantified over the underlying field, so it applies to Curve25519
+ * itself and the quadratic twist of Curve25519. It was not proven in
+ * Coq that prime-field arithmetic correctly simulates extension-field
+ * arithmetic on prime-field values. The decoding of the byte array
+ * representation of e was not considered.
+ *
+ * Specification of Montgomery curves in affine coordinates:
+ * <https://github.com/mit-plv/fiat-crypto/blob/2456d821825521f7e03e65882cc3521795b0320f/src/Spec/MontgomeryCurve.v#L27>
+ *
+ * Proof that these form a group that is isomorphic to a Weierstrass
+ * curve:
+ * <https://github.com/mit-plv/fiat-crypto/blob/2456d821825521f7e03e65882cc3521795b0320f/src/Curves/Montgomery/AffineProofs.v#L35>
+ *
+ * Coq transcription and correctness proof of the loop
+ * (where scalarbits=255):
+ * <https://github.com/mit-plv/fiat-crypto/blob/2456d821825521f7e03e65882cc3521795b0320f/src/Curves/Montgomery/XZ.v#L118>
+ * <https://github.com/mit-plv/fiat-crypto/blob/2456d821825521f7e03e65882cc3521795b0320f/src/Curves/Montgomery/XZProofs.v#L278>
+ * preconditions: 0 <= e < 2^255 (not necessarily e < order),
+ * fe_invert(0) = 0
+ */
+ fe_frombytes(&x1, point);
+ fe_1(&x2);
+ fe_0(&z2);
+ fe_copy(&x3, &x1);
+ fe_1(&z3);
+
+ for (pos = 254; pos >= 0; --pos) {
+ fe tmp0, tmp1;
+ fe_loose tmp0l, tmp1l;
+ /* loop invariant as of right before the test, for the case
+ * where x1 != 0:
+ * pos >= -1; if z2 = 0 then x2 is nonzero; if z3 = 0 then x3
+ * is nonzero
+ * let r := e >> (pos+1) in the following equalities of
+ * projective points:
+ * to_xz (r*P) === if swap then (x3, z3) else (x2, z2)
+ * to_xz ((r+1)*P) === if swap then (x2, z2) else (x3, z3)
+ * x1 is the nonzero x coordinate of the nonzero
+ * point (r*P-(r+1)*P)
+ */
+ unsigned b = 1 & (e[pos / 8] >> (pos & 7));
+ swap ^= b;
+ fe_cswap(&x2, &x3, swap);
+ fe_cswap(&z2, &z3, swap);
+ swap = b;
+ /* Coq transcription of ladderstep formula (called from
+ * transcribed loop):
+ * <https://github.com/mit-plv/fiat-crypto/blob/2456d821825521f7e03e65882cc3521795b0320f/src/Curves/Montgomery/XZ.v#L89>
+ * <https://github.com/mit-plv/fiat-crypto/blob/2456d821825521f7e03e65882cc3521795b0320f/src/Curves/Montgomery/XZProofs.v#L131>
+ * x1 != 0 <https://github.com/mit-plv/fiat-crypto/blob/2456d821825521f7e03e65882cc3521795b0320f/src/Curves/Montgomery/XZProofs.v#L217>
+ * x1 = 0 <https://github.com/mit-plv/fiat-crypto/blob/2456d821825521f7e03e65882cc3521795b0320f/src/Curves/Montgomery/XZProofs.v#L147>
+ */
+ fe_sub(&tmp0l, &x3, &z3);
+ fe_sub(&tmp1l, &x2, &z2);
+ fe_add(&x2l, &x2, &z2);
+ fe_add(&z2l, &x3, &z3);
+ fe_mul_tll(&z3, &tmp0l, &x2l);
+ fe_mul_tll(&z2, &z2l, &tmp1l);
+ fe_sq_tl(&tmp0, &tmp1l);
+ fe_sq_tl(&tmp1, &x2l);
+ fe_add(&x3l, &z3, &z2);
+ fe_sub(&z2l, &z3, &z2);
+ fe_mul_ttt(&x2, &tmp1, &tmp0);
+ fe_sub(&tmp1l, &tmp1, &tmp0);
+ fe_sq_tl(&z2, &z2l);
+ fe_mul121666(&z3, &tmp1l);
+ fe_sq_tl(&x3, &x3l);
+ fe_add(&tmp0l, &tmp0, &z3);
+ fe_mul_ttt(&z3, &x1, &z2);
+ fe_mul_tll(&z2, &tmp1l, &tmp0l);
+ }
+ /* here pos=-1, so r=e, so to_xz (e*P) === if swap then (x3, z3)
+ * else (x2, z2)
+ */
+ fe_cswap(&x2, &x3, swap);
+ fe_cswap(&z2, &z3, swap);
+
+ fe_invert(&z2, &z2);
+ fe_mul_ttt(&x2, &x2, &z2);
+ fe_tobytes(out, &x2);
+
+ memzero_explicit(&x1, sizeof(x1));
+ memzero_explicit(&x2, sizeof(x2));
+ memzero_explicit(&z2, sizeof(z2));
+ memzero_explicit(&x3, sizeof(x3));
+ memzero_explicit(&z3, sizeof(z3));
+ memzero_explicit(&x2l, sizeof(x2l));
+ memzero_explicit(&z2l, sizeof(z2l));
+ memzero_explicit(&x3l, sizeof(x3l));
+ memzero_explicit(&e, sizeof(e));
+}
diff --git a/lib/crypto/curve25519-generic.c b/lib/crypto/curve25519-generic.c
new file mode 100644
index 0000000..de7c991
--- /dev/null
+++ b/lib/crypto/curve25519-generic.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ *
+ * This is an implementation of the Curve25519 ECDH algorithm, using either
+ * a 32-bit implementation or a 64-bit implementation with 128-bit integers,
+ * depending on what is supported by the target compiler.
+ *
+ * Information: https://cr.yp.to/ecdh.html
+ */
+
+#include <crypto/curve25519.h>
+#include <linux/module.h>
+
+const u8 curve25519_null_point[CURVE25519_KEY_SIZE] __aligned(32) = { 0 };
+const u8 curve25519_base_point[CURVE25519_KEY_SIZE] __aligned(32) = { 9 };
+
+EXPORT_SYMBOL(curve25519_null_point);
+EXPORT_SYMBOL(curve25519_base_point);
+EXPORT_SYMBOL(curve25519_generic);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Curve25519 scalar multiplication");
+MODULE_AUTHOR("Jason A. Donenfeld <Jason@zx2c4.com>");
diff --git a/lib/crypto/curve25519-hacl64.c b/lib/crypto/curve25519-hacl64.c
new file mode 100644
index 0000000..771d82d
--- /dev/null
+++ b/lib/crypto/curve25519-hacl64.c
@@ -0,0 +1,788 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2016-2017 INRIA and Microsoft Corporation.
+ * Copyright (C) 2018-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ *
+ * This is a machine-generated formally verified implementation of Curve25519
+ * ECDH from: <https://github.com/mitls/hacl-star>. Though originally machine
+ * generated, it has been tweaked to be suitable for use in the kernel. It is
+ * optimized for 64-bit machines that can efficiently work with 128-bit
+ * integer types.
+ */
+
+#include <asm/unaligned.h>
+#include <crypto/curve25519.h>
+#include <linux/string.h>
+
+typedef __uint128_t u128;
+
+static __always_inline u64 u64_eq_mask(u64 a, u64 b)
+{
+ u64 x = a ^ b;
+ u64 minus_x = ~x + (u64)1U;
+ u64 x_or_minus_x = x | minus_x;
+ u64 xnx = x_or_minus_x >> (u32)63U;
+ u64 c = xnx - (u64)1U;
+ return c;
+}
+
+static __always_inline u64 u64_gte_mask(u64 a, u64 b)
+{
+ u64 x = a;
+ u64 y = b;
+ u64 x_xor_y = x ^ y;
+ u64 x_sub_y = x - y;
+ u64 x_sub_y_xor_y = x_sub_y ^ y;
+ u64 q = x_xor_y | x_sub_y_xor_y;
+ u64 x_xor_q = x ^ q;
+ u64 x_xor_q_ = x_xor_q >> (u32)63U;
+ u64 c = x_xor_q_ - (u64)1U;
+ return c;
+}
+
+static __always_inline void modulo_carry_top(u64 *b)
+{
+ u64 b4 = b[4];
+ u64 b0 = b[0];
+ u64 b4_ = b4 & 0x7ffffffffffffLLU;
+ u64 b0_ = b0 + 19 * (b4 >> 51);
+ b[4] = b4_;
+ b[0] = b0_;
+}
+
+static __always_inline void fproduct_copy_from_wide_(u64 *output, u128 *input)
+{
+ {
+ u128 xi = input[0];
+ output[0] = ((u64)(xi));
+ }
+ {
+ u128 xi = input[1];
+ output[1] = ((u64)(xi));
+ }
+ {
+ u128 xi = input[2];
+ output[2] = ((u64)(xi));
+ }
+ {
+ u128 xi = input[3];
+ output[3] = ((u64)(xi));
+ }
+ {
+ u128 xi = input[4];
+ output[4] = ((u64)(xi));
+ }
+}
+
+static __always_inline void
+fproduct_sum_scalar_multiplication_(u128 *output, u64 *input, u64 s)
+{
+ output[0] += (u128)input[0] * s;
+ output[1] += (u128)input[1] * s;
+ output[2] += (u128)input[2] * s;
+ output[3] += (u128)input[3] * s;
+ output[4] += (u128)input[4] * s;
+}
+
+static __always_inline void fproduct_carry_wide_(u128 *tmp)
+{
+ {
+ u32 ctr = 0;
+ u128 tctr = tmp[ctr];
+ u128 tctrp1 = tmp[ctr + 1];
+ u64 r0 = ((u64)(tctr)) & 0x7ffffffffffffLLU;
+ u128 c = ((tctr) >> (51));
+ tmp[ctr] = ((u128)(r0));
+ tmp[ctr + 1] = ((tctrp1) + (c));
+ }
+ {
+ u32 ctr = 1;
+ u128 tctr = tmp[ctr];
+ u128 tctrp1 = tmp[ctr + 1];
+ u64 r0 = ((u64)(tctr)) & 0x7ffffffffffffLLU;
+ u128 c = ((tctr) >> (51));
+ tmp[ctr] = ((u128)(r0));
+ tmp[ctr + 1] = ((tctrp1) + (c));
+ }
+
+ {
+ u32 ctr = 2;
+ u128 tctr = tmp[ctr];
+ u128 tctrp1 = tmp[ctr + 1];
+ u64 r0 = ((u64)(tctr)) & 0x7ffffffffffffLLU;
+ u128 c = ((tctr) >> (51));
+ tmp[ctr] = ((u128)(r0));
+ tmp[ctr + 1] = ((tctrp1) + (c));
+ }
+ {
+ u32 ctr = 3;
+ u128 tctr = tmp[ctr];
+ u128 tctrp1 = tmp[ctr + 1];
+ u64 r0 = ((u64)(tctr)) & 0x7ffffffffffffLLU;
+ u128 c = ((tctr) >> (51));
+ tmp[ctr] = ((u128)(r0));
+ tmp[ctr + 1] = ((tctrp1) + (c));
+ }
+}
+
+static __always_inline void fmul_shift_reduce(u64 *output)
+{
+ u64 tmp = output[4];
+ u64 b0;
+ {
+ u32 ctr = 5 - 0 - 1;
+ u64 z = output[ctr - 1];
+ output[ctr] = z;
+ }
+ {
+ u32 ctr = 5 - 1 - 1;
+ u64 z = output[ctr - 1];
+ output[ctr] = z;
+ }
+ {
+ u32 ctr = 5 - 2 - 1;
+ u64 z = output[ctr - 1];
+ output[ctr] = z;
+ }
+ {
+ u32 ctr = 5 - 3 - 1;
+ u64 z = output[ctr - 1];
+ output[ctr] = z;
+ }
+ output[0] = tmp;
+ b0 = output[0];
+ output[0] = 19 * b0;
+}
+
+static __always_inline void fmul_mul_shift_reduce_(u128 *output, u64 *input,
+ u64 *input21)
+{
+ u32 i;
+ u64 input2i;
+ {
+ u64 input2i = input21[0];
+ fproduct_sum_scalar_multiplication_(output, input, input2i);
+ fmul_shift_reduce(input);
+ }
+ {
+ u64 input2i = input21[1];
+ fproduct_sum_scalar_multiplication_(output, input, input2i);
+ fmul_shift_reduce(input);
+ }
+ {
+ u64 input2i = input21[2];
+ fproduct_sum_scalar_multiplication_(output, input, input2i);
+ fmul_shift_reduce(input);
+ }
+ {
+ u64 input2i = input21[3];
+ fproduct_sum_scalar_multiplication_(output, input, input2i);
+ fmul_shift_reduce(input);
+ }
+ i = 4;
+ input2i = input21[i];
+ fproduct_sum_scalar_multiplication_(output, input, input2i);
+}
+
+static __always_inline void fmul_fmul(u64 *output, u64 *input, u64 *input21)
+{
+ u64 tmp[5] = { input[0], input[1], input[2], input[3], input[4] };
+ {
+ u128 b4;
+ u128 b0;
+ u128 b4_;
+ u128 b0_;
+ u64 i0;
+ u64 i1;
+ u64 i0_;
+ u64 i1_;
+ u128 t[5] = { 0 };
+ fmul_mul_shift_reduce_(t, tmp, input21);
+ fproduct_carry_wide_(t);
+ b4 = t[4];
+ b0 = t[0];
+ b4_ = ((b4) & (((u128)(0x7ffffffffffffLLU))));
+ b0_ = ((b0) + (((u128)(19) * (((u64)(((b4) >> (51))))))));
+ t[4] = b4_;
+ t[0] = b0_;
+ fproduct_copy_from_wide_(output, t);
+ i0 = output[0];
+ i1 = output[1];
+ i0_ = i0 & 0x7ffffffffffffLLU;
+ i1_ = i1 + (i0 >> 51);
+ output[0] = i0_;
+ output[1] = i1_;
+ }
+}
+
+static __always_inline void fsquare_fsquare__(u128 *tmp, u64 *output)
+{
+ u64 r0 = output[0];
+ u64 r1 = output[1];
+ u64 r2 = output[2];
+ u64 r3 = output[3];
+ u64 r4 = output[4];
+ u64 d0 = r0 * 2;
+ u64 d1 = r1 * 2;
+ u64 d2 = r2 * 2 * 19;
+ u64 d419 = r4 * 19;
+ u64 d4 = d419 * 2;
+ u128 s0 = ((((((u128)(r0) * (r0))) + (((u128)(d4) * (r1))))) +
+ (((u128)(d2) * (r3))));
+ u128 s1 = ((((((u128)(d0) * (r1))) + (((u128)(d4) * (r2))))) +
+ (((u128)(r3 * 19) * (r3))));
+ u128 s2 = ((((((u128)(d0) * (r2))) + (((u128)(r1) * (r1))))) +
+ (((u128)(d4) * (r3))));
+ u128 s3 = ((((((u128)(d0) * (r3))) + (((u128)(d1) * (r2))))) +
+ (((u128)(r4) * (d419))));
+ u128 s4 = ((((((u128)(d0) * (r4))) + (((u128)(d1) * (r3))))) +
+ (((u128)(r2) * (r2))));
+ tmp[0] = s0;
+ tmp[1] = s1;
+ tmp[2] = s2;
+ tmp[3] = s3;
+ tmp[4] = s4;
+}
+
+static __always_inline void fsquare_fsquare_(u128 *tmp, u64 *output)
+{
+ u128 b4;
+ u128 b0;
+ u128 b4_;
+ u128 b0_;
+ u64 i0;
+ u64 i1;
+ u64 i0_;
+ u64 i1_;
+ fsquare_fsquare__(tmp, output);
+ fproduct_carry_wide_(tmp);
+ b4 = tmp[4];
+ b0 = tmp[0];
+ b4_ = ((b4) & (((u128)(0x7ffffffffffffLLU))));
+ b0_ = ((b0) + (((u128)(19) * (((u64)(((b4) >> (51))))))));
+ tmp[4] = b4_;
+ tmp[0] = b0_;
+ fproduct_copy_from_wide_(output, tmp);
+ i0 = output[0];
+ i1 = output[1];
+ i0_ = i0 & 0x7ffffffffffffLLU;
+ i1_ = i1 + (i0 >> 51);
+ output[0] = i0_;
+ output[1] = i1_;
+}
+
+static __always_inline void fsquare_fsquare_times_(u64 *output, u128 *tmp,
+ u32 count1)
+{
+ u32 i;
+ fsquare_fsquare_(tmp, output);
+ for (i = 1; i < count1; ++i)
+ fsquare_fsquare_(tmp, output);
+}
+
+static __always_inline void fsquare_fsquare_times(u64 *output, u64 *input,
+ u32 count1)
+{
+ u128 t[5];
+ memcpy(output, input, 5 * sizeof(*input));
+ fsquare_fsquare_times_(output, t, count1);
+}
+
+static __always_inline void fsquare_fsquare_times_inplace(u64 *output,
+ u32 count1)
+{
+ u128 t[5];
+ fsquare_fsquare_times_(output, t, count1);
+}
+
+static __always_inline void crecip_crecip(u64 *out, u64 *z)
+{
+ u64 buf[20] = { 0 };
+ u64 *a0 = buf;
+ u64 *t00 = buf + 5;
+ u64 *b0 = buf + 10;
+ u64 *t01;
+ u64 *b1;
+ u64 *c0;
+ u64 *a;
+ u64 *t0;
+ u64 *b;
+ u64 *c;
+ fsquare_fsquare_times(a0, z, 1);
+ fsquare_fsquare_times(t00, a0, 2);
+ fmul_fmul(b0, t00, z);
+ fmul_fmul(a0, b0, a0);
+ fsquare_fsquare_times(t00, a0, 1);
+ fmul_fmul(b0, t00, b0);
+ fsquare_fsquare_times(t00, b0, 5);
+ t01 = buf + 5;
+ b1 = buf + 10;
+ c0 = buf + 15;
+ fmul_fmul(b1, t01, b1);
+ fsquare_fsquare_times(t01, b1, 10);
+ fmul_fmul(c0, t01, b1);
+ fsquare_fsquare_times(t01, c0, 20);
+ fmul_fmul(t01, t01, c0);
+ fsquare_fsquare_times_inplace(t01, 10);
+ fmul_fmul(b1, t01, b1);
+ fsquare_fsquare_times(t01, b1, 50);
+ a = buf;
+ t0 = buf + 5;
+ b = buf + 10;
+ c = buf + 15;
+ fmul_fmul(c, t0, b);
+ fsquare_fsquare_times(t0, c, 100);
+ fmul_fmul(t0, t0, c);
+ fsquare_fsquare_times_inplace(t0, 50);
+ fmul_fmul(t0, t0, b);
+ fsquare_fsquare_times_inplace(t0, 5);
+ fmul_fmul(out, t0, a);
+}
+
+static __always_inline void fsum(u64 *a, u64 *b)
+{
+ a[0] += b[0];
+ a[1] += b[1];
+ a[2] += b[2];
+ a[3] += b[3];
+ a[4] += b[4];
+}
+
+static __always_inline void fdifference(u64 *a, u64 *b)
+{
+ u64 tmp[5] = { 0 };
+ u64 b0;
+ u64 b1;
+ u64 b2;
+ u64 b3;
+ u64 b4;
+ memcpy(tmp, b, 5 * sizeof(*b));
+ b0 = tmp[0];
+ b1 = tmp[1];
+ b2 = tmp[2];
+ b3 = tmp[3];
+ b4 = tmp[4];
+ tmp[0] = b0 + 0x3fffffffffff68LLU;
+ tmp[1] = b1 + 0x3ffffffffffff8LLU;
+ tmp[2] = b2 + 0x3ffffffffffff8LLU;
+ tmp[3] = b3 + 0x3ffffffffffff8LLU;
+ tmp[4] = b4 + 0x3ffffffffffff8LLU;
+ {
+ u64 xi = a[0];
+ u64 yi = tmp[0];
+ a[0] = yi - xi;
+ }
+ {
+ u64 xi = a[1];
+ u64 yi = tmp[1];
+ a[1] = yi - xi;
+ }
+ {
+ u64 xi = a[2];
+ u64 yi = tmp[2];
+ a[2] = yi - xi;
+ }
+ {
+ u64 xi = a[3];
+ u64 yi = tmp[3];
+ a[3] = yi - xi;
+ }
+ {
+ u64 xi = a[4];
+ u64 yi = tmp[4];
+ a[4] = yi - xi;
+ }
+}
+
+static __always_inline void fscalar(u64 *output, u64 *b, u64 s)
+{
+ u128 tmp[5];
+ u128 b4;
+ u128 b0;
+ u128 b4_;
+ u128 b0_;
+ {
+ u64 xi = b[0];
+ tmp[0] = ((u128)(xi) * (s));
+ }
+ {
+ u64 xi = b[1];
+ tmp[1] = ((u128)(xi) * (s));
+ }
+ {
+ u64 xi = b[2];
+ tmp[2] = ((u128)(xi) * (s));
+ }
+ {
+ u64 xi = b[3];
+ tmp[3] = ((u128)(xi) * (s));
+ }
+ {
+ u64 xi = b[4];
+ tmp[4] = ((u128)(xi) * (s));
+ }
+ fproduct_carry_wide_(tmp);
+ b4 = tmp[4];
+ b0 = tmp[0];
+ b4_ = ((b4) & (((u128)(0x7ffffffffffffLLU))));
+ b0_ = ((b0) + (((u128)(19) * (((u64)(((b4) >> (51))))))));
+ tmp[4] = b4_;
+ tmp[0] = b0_;
+ fproduct_copy_from_wide_(output, tmp);
+}
+
+static __always_inline void fmul(u64 *output, u64 *a, u64 *b)
+{
+ fmul_fmul(output, a, b);
+}
+
+static __always_inline void crecip(u64 *output, u64 *input)
+{
+ crecip_crecip(output, input);
+}
+
+static __always_inline void point_swap_conditional_step(u64 *a, u64 *b,
+ u64 swap1, u32 ctr)
+{
+ u32 i = ctr - 1;
+ u64 ai = a[i];
+ u64 bi = b[i];
+ u64 x = swap1 & (ai ^ bi);
+ u64 ai1 = ai ^ x;
+ u64 bi1 = bi ^ x;
+ a[i] = ai1;
+ b[i] = bi1;
+}
+
+static __always_inline void point_swap_conditional5(u64 *a, u64 *b, u64 swap1)
+{
+ point_swap_conditional_step(a, b, swap1, 5);
+ point_swap_conditional_step(a, b, swap1, 4);
+ point_swap_conditional_step(a, b, swap1, 3);
+ point_swap_conditional_step(a, b, swap1, 2);
+ point_swap_conditional_step(a, b, swap1, 1);
+}
+
+static __always_inline void point_swap_conditional(u64 *a, u64 *b, u64 iswap)
+{
+ u64 swap1 = 0 - iswap;
+ point_swap_conditional5(a, b, swap1);
+ point_swap_conditional5(a + 5, b + 5, swap1);
+}
+
+static __always_inline void point_copy(u64 *output, u64 *input)
+{
+ memcpy(output, input, 5 * sizeof(*input));
+ memcpy(output + 5, input + 5, 5 * sizeof(*input));
+}
+
+static __always_inline void addanddouble_fmonty(u64 *pp, u64 *ppq, u64 *p,
+ u64 *pq, u64 *qmqp)
+{
+ u64 *qx = qmqp;
+ u64 *x2 = pp;
+ u64 *z2 = pp + 5;
+ u64 *x3 = ppq;
+ u64 *z3 = ppq + 5;
+ u64 *x = p;
+ u64 *z = p + 5;
+ u64 *xprime = pq;
+ u64 *zprime = pq + 5;
+ u64 buf[40] = { 0 };
+ u64 *origx = buf;
+ u64 *origxprime0 = buf + 5;
+ u64 *xxprime0;
+ u64 *zzprime0;
+ u64 *origxprime;
+ xxprime0 = buf + 25;
+ zzprime0 = buf + 30;
+ memcpy(origx, x, 5 * sizeof(*x));
+ fsum(x, z);
+ fdifference(z, origx);
+ memcpy(origxprime0, xprime, 5 * sizeof(*xprime));
+ fsum(xprime, zprime);
+ fdifference(zprime, origxprime0);
+ fmul(xxprime0, xprime, z);
+ fmul(zzprime0, x, zprime);
+ origxprime = buf + 5;
+ {
+ u64 *xx0;
+ u64 *zz0;
+ u64 *xxprime;
+ u64 *zzprime;
+ u64 *zzzprime;
+ xx0 = buf + 15;
+ zz0 = buf + 20;
+ xxprime = buf + 25;
+ zzprime = buf + 30;
+ zzzprime = buf + 35;
+ memcpy(origxprime, xxprime, 5 * sizeof(*xxprime));
+ fsum(xxprime, zzprime);
+ fdifference(zzprime, origxprime);
+ fsquare_fsquare_times(x3, xxprime, 1);
+ fsquare_fsquare_times(zzzprime, zzprime, 1);
+ fmul(z3, zzzprime, qx);
+ fsquare_fsquare_times(xx0, x, 1);
+ fsquare_fsquare_times(zz0, z, 1);
+ {
+ u64 *zzz;
+ u64 *xx;
+ u64 *zz;
+ u64 scalar;
+ zzz = buf + 10;
+ xx = buf + 15;
+ zz = buf + 20;
+ fmul(x2, xx, zz);
+ fdifference(zz, xx);
+ scalar = 121665;
+ fscalar(zzz, zz, scalar);
+ fsum(zzz, xx);
+ fmul(z2, zzz, zz);
+ }
+ }
+}
+
+static __always_inline void
+ladder_smallloop_cmult_small_loop_step(u64 *nq, u64 *nqpq, u64 *nq2, u64 *nqpq2,
+ u64 *q, u8 byt)
+{
+ u64 bit0 = (u64)(byt >> 7);
+ u64 bit;
+ point_swap_conditional(nq, nqpq, bit0);
+ addanddouble_fmonty(nq2, nqpq2, nq, nqpq, q);
+ bit = (u64)(byt >> 7);
+ point_swap_conditional(nq2, nqpq2, bit);
+}
+
+static __always_inline void
+ladder_smallloop_cmult_small_loop_double_step(u64 *nq, u64 *nqpq, u64 *nq2,
+ u64 *nqpq2, u64 *q, u8 byt)
+{
+ u8 byt1;
+ ladder_smallloop_cmult_small_loop_step(nq, nqpq, nq2, nqpq2, q, byt);
+ byt1 = byt << 1;
+ ladder_smallloop_cmult_small_loop_step(nq2, nqpq2, nq, nqpq, q, byt1);
+}
+
+static __always_inline void
+ladder_smallloop_cmult_small_loop(u64 *nq, u64 *nqpq, u64 *nq2, u64 *nqpq2,
+ u64 *q, u8 byt, u32 i)
+{
+ while (i--) {
+ ladder_smallloop_cmult_small_loop_double_step(nq, nqpq, nq2,
+ nqpq2, q, byt);
+ byt <<= 2;
+ }
+}
+
+static __always_inline void ladder_bigloop_cmult_big_loop(u8 *n1, u64 *nq,
+ u64 *nqpq, u64 *nq2,
+ u64 *nqpq2, u64 *q,
+ u32 i)
+{
+ while (i--) {
+ u8 byte = n1[i];
+ ladder_smallloop_cmult_small_loop(nq, nqpq, nq2, nqpq2, q,
+ byte, 4);
+ }
+}
+
+static void ladder_cmult(u64 *result, u8 *n1, u64 *q)
+{
+ u64 point_buf[40] = { 0 };
+ u64 *nq = point_buf;
+ u64 *nqpq = point_buf + 10;
+ u64 *nq2 = point_buf + 20;
+ u64 *nqpq2 = point_buf + 30;
+ point_copy(nqpq, q);
+ nq[0] = 1;
+ ladder_bigloop_cmult_big_loop(n1, nq, nqpq, nq2, nqpq2, q, 32);
+ point_copy(result, nq);
+}
+
+static __always_inline void format_fexpand(u64 *output, const u8 *input)
+{
+ const u8 *x00 = input + 6;
+ const u8 *x01 = input + 12;
+ const u8 *x02 = input + 19;
+ const u8 *x0 = input + 24;
+ u64 i0, i1, i2, i3, i4, output0, output1, output2, output3, output4;
+ i0 = get_unaligned_le64(input);
+ i1 = get_unaligned_le64(x00);
+ i2 = get_unaligned_le64(x01);
+ i3 = get_unaligned_le64(x02);
+ i4 = get_unaligned_le64(x0);
+ output0 = i0 & 0x7ffffffffffffLLU;
+ output1 = i1 >> 3 & 0x7ffffffffffffLLU;
+ output2 = i2 >> 6 & 0x7ffffffffffffLLU;
+ output3 = i3 >> 1 & 0x7ffffffffffffLLU;
+ output4 = i4 >> 12 & 0x7ffffffffffffLLU;
+ output[0] = output0;
+ output[1] = output1;
+ output[2] = output2;
+ output[3] = output3;
+ output[4] = output4;
+}
+
+static __always_inline void format_fcontract_first_carry_pass(u64 *input)
+{
+ u64 t0 = input[0];
+ u64 t1 = input[1];
+ u64 t2 = input[2];
+ u64 t3 = input[3];
+ u64 t4 = input[4];
+ u64 t1_ = t1 + (t0 >> 51);
+ u64 t0_ = t0 & 0x7ffffffffffffLLU;
+ u64 t2_ = t2 + (t1_ >> 51);
+ u64 t1__ = t1_ & 0x7ffffffffffffLLU;
+ u64 t3_ = t3 + (t2_ >> 51);
+ u64 t2__ = t2_ & 0x7ffffffffffffLLU;
+ u64 t4_ = t4 + (t3_ >> 51);
+ u64 t3__ = t3_ & 0x7ffffffffffffLLU;
+ input[0] = t0_;
+ input[1] = t1__;
+ input[2] = t2__;
+ input[3] = t3__;
+ input[4] = t4_;
+}
+
+static __always_inline void format_fcontract_first_carry_full(u64 *input)
+{
+ format_fcontract_first_carry_pass(input);
+ modulo_carry_top(input);
+}
+
+static __always_inline void format_fcontract_second_carry_pass(u64 *input)
+{
+ u64 t0 = input[0];
+ u64 t1 = input[1];
+ u64 t2 = input[2];
+ u64 t3 = input[3];
+ u64 t4 = input[4];
+ u64 t1_ = t1 + (t0 >> 51);
+ u64 t0_ = t0 & 0x7ffffffffffffLLU;
+ u64 t2_ = t2 + (t1_ >> 51);
+ u64 t1__ = t1_ & 0x7ffffffffffffLLU;
+ u64 t3_ = t3 + (t2_ >> 51);
+ u64 t2__ = t2_ & 0x7ffffffffffffLLU;
+ u64 t4_ = t4 + (t3_ >> 51);
+ u64 t3__ = t3_ & 0x7ffffffffffffLLU;
+ input[0] = t0_;
+ input[1] = t1__;
+ input[2] = t2__;
+ input[3] = t3__;
+ input[4] = t4_;
+}
+
+static __always_inline void format_fcontract_second_carry_full(u64 *input)
+{
+ u64 i0;
+ u64 i1;
+ u64 i0_;
+ u64 i1_;
+ format_fcontract_second_carry_pass(input);
+ modulo_carry_top(input);
+ i0 = input[0];
+ i1 = input[1];
+ i0_ = i0 & 0x7ffffffffffffLLU;
+ i1_ = i1 + (i0 >> 51);
+ input[0] = i0_;
+ input[1] = i1_;
+}
+
+static __always_inline void format_fcontract_trim(u64 *input)
+{
+ u64 a0 = input[0];
+ u64 a1 = input[1];
+ u64 a2 = input[2];
+ u64 a3 = input[3];
+ u64 a4 = input[4];
+ u64 mask0 = u64_gte_mask(a0, 0x7ffffffffffedLLU);
+ u64 mask1 = u64_eq_mask(a1, 0x7ffffffffffffLLU);
+ u64 mask2 = u64_eq_mask(a2, 0x7ffffffffffffLLU);
+ u64 mask3 = u64_eq_mask(a3, 0x7ffffffffffffLLU);
+ u64 mask4 = u64_eq_mask(a4, 0x7ffffffffffffLLU);
+ u64 mask = (((mask0 & mask1) & mask2) & mask3) & mask4;
+ u64 a0_ = a0 - (0x7ffffffffffedLLU & mask);
+ u64 a1_ = a1 - (0x7ffffffffffffLLU & mask);
+ u64 a2_ = a2 - (0x7ffffffffffffLLU & mask);
+ u64 a3_ = a3 - (0x7ffffffffffffLLU & mask);
+ u64 a4_ = a4 - (0x7ffffffffffffLLU & mask);
+ input[0] = a0_;
+ input[1] = a1_;
+ input[2] = a2_;
+ input[3] = a3_;
+ input[4] = a4_;
+}
+
+static __always_inline void format_fcontract_store(u8 *output, u64 *input)
+{
+ u64 t0 = input[0];
+ u64 t1 = input[1];
+ u64 t2 = input[2];
+ u64 t3 = input[3];
+ u64 t4 = input[4];
+ u64 o0 = t1 << 51 | t0;
+ u64 o1 = t2 << 38 | t1 >> 13;
+ u64 o2 = t3 << 25 | t2 >> 26;
+ u64 o3 = t4 << 12 | t3 >> 39;
+ u8 *b0 = output;
+ u8 *b1 = output + 8;
+ u8 *b2 = output + 16;
+ u8 *b3 = output + 24;
+ put_unaligned_le64(o0, b0);
+ put_unaligned_le64(o1, b1);
+ put_unaligned_le64(o2, b2);
+ put_unaligned_le64(o3, b3);
+}
+
+static __always_inline void format_fcontract(u8 *output, u64 *input)
+{
+ format_fcontract_first_carry_full(input);
+ format_fcontract_second_carry_full(input);
+ format_fcontract_trim(input);
+ format_fcontract_store(output, input);
+}
+
+static __always_inline void format_scalar_of_point(u8 *scalar, u64 *point)
+{
+ u64 *x = point;
+ u64 *z = point + 5;
+ u64 buf[10] __aligned(32) = { 0 };
+ u64 *zmone = buf;
+ u64 *sc = buf + 5;
+ crecip(zmone, z);
+ fmul(sc, x, zmone);
+ format_fcontract(scalar, sc);
+}
+
+void curve25519_generic(u8 mypublic[CURVE25519_KEY_SIZE],
+ const u8 secret[CURVE25519_KEY_SIZE],
+ const u8 basepoint[CURVE25519_KEY_SIZE])
+{
+ u64 buf0[10] __aligned(32) = { 0 };
+ u64 *x0 = buf0;
+ u64 *z = buf0 + 5;
+ u64 *q;
+ format_fexpand(x0, basepoint);
+ z[0] = 1;
+ q = buf0;
+ {
+ u8 e[32] __aligned(32) = { 0 };
+ u8 *scalar;
+ memcpy(e, secret, 32);
+ curve25519_clamp_secret(e);
+ scalar = e;
+ {
+ u64 buf[15] = { 0 };
+ u64 *nq = buf;
+ u64 *x = nq;
+ x[0] = 1;
+ ladder_cmult(nq, scalar, q);
+ format_scalar_of_point(mypublic, nq);
+ memzero_explicit(buf, sizeof(buf));
+ }
+ memzero_explicit(e, sizeof(e));
+ }
+ memzero_explicit(buf0, sizeof(buf0));
+}
diff --git a/lib/crypto/curve25519-selftest.c b/lib/crypto/curve25519-selftest.c
new file mode 100644
index 0000000..c85e853
--- /dev/null
+++ b/lib/crypto/curve25519-selftest.c
@@ -0,0 +1,1321 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#include <crypto/curve25519.h>
+
+struct curve25519_test_vector {
+ u8 private[CURVE25519_KEY_SIZE];
+ u8 public[CURVE25519_KEY_SIZE];
+ u8 result[CURVE25519_KEY_SIZE];
+ bool valid;
+};
+static const struct curve25519_test_vector curve25519_test_vectors[] __initconst = {
+ {
+ .private = { 0x77, 0x07, 0x6d, 0x0a, 0x73, 0x18, 0xa5, 0x7d,
+ 0x3c, 0x16, 0xc1, 0x72, 0x51, 0xb2, 0x66, 0x45,
+ 0xdf, 0x4c, 0x2f, 0x87, 0xeb, 0xc0, 0x99, 0x2a,
+ 0xb1, 0x77, 0xfb, 0xa5, 0x1d, 0xb9, 0x2c, 0x2a },
+ .public = { 0xde, 0x9e, 0xdb, 0x7d, 0x7b, 0x7d, 0xc1, 0xb4,
+ 0xd3, 0x5b, 0x61, 0xc2, 0xec, 0xe4, 0x35, 0x37,
+ 0x3f, 0x83, 0x43, 0xc8, 0x5b, 0x78, 0x67, 0x4d,
+ 0xad, 0xfc, 0x7e, 0x14, 0x6f, 0x88, 0x2b, 0x4f },
+ .result = { 0x4a, 0x5d, 0x9d, 0x5b, 0xa4, 0xce, 0x2d, 0xe1,
+ 0x72, 0x8e, 0x3b, 0xf4, 0x80, 0x35, 0x0f, 0x25,
+ 0xe0, 0x7e, 0x21, 0xc9, 0x47, 0xd1, 0x9e, 0x33,
+ 0x76, 0xf0, 0x9b, 0x3c, 0x1e, 0x16, 0x17, 0x42 },
+ .valid = true
+ },
+ {
+ .private = { 0x5d, 0xab, 0x08, 0x7e, 0x62, 0x4a, 0x8a, 0x4b,
+ 0x79, 0xe1, 0x7f, 0x8b, 0x83, 0x80, 0x0e, 0xe6,
+ 0x6f, 0x3b, 0xb1, 0x29, 0x26, 0x18, 0xb6, 0xfd,
+ 0x1c, 0x2f, 0x8b, 0x27, 0xff, 0x88, 0xe0, 0xeb },
+ .public = { 0x85, 0x20, 0xf0, 0x09, 0x89, 0x30, 0xa7, 0x54,
+ 0x74, 0x8b, 0x7d, 0xdc, 0xb4, 0x3e, 0xf7, 0x5a,
+ 0x0d, 0xbf, 0x3a, 0x0d, 0x26, 0x38, 0x1a, 0xf4,
+ 0xeb, 0xa4, 0xa9, 0x8e, 0xaa, 0x9b, 0x4e, 0x6a },
+ .result = { 0x4a, 0x5d, 0x9d, 0x5b, 0xa4, 0xce, 0x2d, 0xe1,
+ 0x72, 0x8e, 0x3b, 0xf4, 0x80, 0x35, 0x0f, 0x25,
+ 0xe0, 0x7e, 0x21, 0xc9, 0x47, 0xd1, 0x9e, 0x33,
+ 0x76, 0xf0, 0x9b, 0x3c, 0x1e, 0x16, 0x17, 0x42 },
+ .valid = true
+ },
+ {
+ .private = { 1 },
+ .public = { 0x25, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .result = { 0x3c, 0x77, 0x77, 0xca, 0xf9, 0x97, 0xb2, 0x64,
+ 0x41, 0x60, 0x77, 0x66, 0x5b, 0x4e, 0x22, 0x9d,
+ 0x0b, 0x95, 0x48, 0xdc, 0x0c, 0xd8, 0x19, 0x98,
+ 0xdd, 0xcd, 0xc5, 0xc8, 0x53, 0x3c, 0x79, 0x7f },
+ .valid = true
+ },
+ {
+ .private = { 1 },
+ .public = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
+ .result = { 0xb3, 0x2d, 0x13, 0x62, 0xc2, 0x48, 0xd6, 0x2f,
+ 0xe6, 0x26, 0x19, 0xcf, 0xf0, 0x4d, 0xd4, 0x3d,
+ 0xb7, 0x3f, 0xfc, 0x1b, 0x63, 0x08, 0xed, 0xe3,
+ 0x0b, 0x78, 0xd8, 0x73, 0x80, 0xf1, 0xe8, 0x34 },
+ .valid = true
+ },
+ {
+ .private = { 0xa5, 0x46, 0xe3, 0x6b, 0xf0, 0x52, 0x7c, 0x9d,
+ 0x3b, 0x16, 0x15, 0x4b, 0x82, 0x46, 0x5e, 0xdd,
+ 0x62, 0x14, 0x4c, 0x0a, 0xc1, 0xfc, 0x5a, 0x18,
+ 0x50, 0x6a, 0x22, 0x44, 0xba, 0x44, 0x9a, 0xc4 },
+ .public = { 0xe6, 0xdb, 0x68, 0x67, 0x58, 0x30, 0x30, 0xdb,
+ 0x35, 0x94, 0xc1, 0xa4, 0x24, 0xb1, 0x5f, 0x7c,
+ 0x72, 0x66, 0x24, 0xec, 0x26, 0xb3, 0x35, 0x3b,
+ 0x10, 0xa9, 0x03, 0xa6, 0xd0, 0xab, 0x1c, 0x4c },
+ .result = { 0xc3, 0xda, 0x55, 0x37, 0x9d, 0xe9, 0xc6, 0x90,
+ 0x8e, 0x94, 0xea, 0x4d, 0xf2, 0x8d, 0x08, 0x4f,
+ 0x32, 0xec, 0xcf, 0x03, 0x49, 0x1c, 0x71, 0xf7,
+ 0x54, 0xb4, 0x07, 0x55, 0x77, 0xa2, 0x85, 0x52 },
+ .valid = true
+ },
+ {
+ .private = { 1, 2, 3, 4 },
+ .public = { 0 },
+ .result = { 0 },
+ .valid = false
+ },
+ {
+ .private = { 2, 4, 6, 8 },
+ .public = { 0xe0, 0xeb, 0x7a, 0x7c, 0x3b, 0x41, 0xb8, 0xae,
+ 0x16, 0x56, 0xe3, 0xfa, 0xf1, 0x9f, 0xc4, 0x6a,
+ 0xda, 0x09, 0x8d, 0xeb, 0x9c, 0x32, 0xb1, 0xfd,
+ 0x86, 0x62, 0x05, 0x16, 0x5f, 0x49, 0xb8 },
+ .result = { 0 },
+ .valid = false
+ },
+ {
+ .private = { 0xff, 0xff, 0xff, 0xff, 0x0a, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
+ .public = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0x0a, 0x00, 0xfb, 0x9f },
+ .result = { 0x77, 0x52, 0xb6, 0x18, 0xc1, 0x2d, 0x48, 0xd2,
+ 0xc6, 0x93, 0x46, 0x83, 0x81, 0x7c, 0xc6, 0x57,
+ 0xf3, 0x31, 0x03, 0x19, 0x49, 0x48, 0x20, 0x05,
+ 0x42, 0x2b, 0x4e, 0xae, 0x8d, 0x1d, 0x43, 0x23 },
+ .valid = true
+ },
+ {
+ .private = { 0x8e, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .public = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8e, 0x06 },
+ .result = { 0x5a, 0xdf, 0xaa, 0x25, 0x86, 0x8e, 0x32, 0x3d,
+ 0xae, 0x49, 0x62, 0xc1, 0x01, 0x5c, 0xb3, 0x12,
+ 0xe1, 0xc5, 0xc7, 0x9e, 0x95, 0x3f, 0x03, 0x99,
+ 0xb0, 0xba, 0x16, 0x22, 0xf3, 0xb6, 0xf7, 0x0c },
+ .valid = true
+ },
+ /* wycheproof - normal case */
+ {
+ .private = { 0x48, 0x52, 0x83, 0x4d, 0x9d, 0x6b, 0x77, 0xda,
+ 0xde, 0xab, 0xaa, 0xf2, 0xe1, 0x1d, 0xca, 0x66,
+ 0xd1, 0x9f, 0xe7, 0x49, 0x93, 0xa7, 0xbe, 0xc3,
+ 0x6c, 0x6e, 0x16, 0xa0, 0x98, 0x3f, 0xea, 0xba },
+ .public = { 0x9c, 0x64, 0x7d, 0x9a, 0xe5, 0x89, 0xb9, 0xf5,
+ 0x8f, 0xdc, 0x3c, 0xa4, 0x94, 0x7e, 0xfb, 0xc9,
+ 0x15, 0xc4, 0xb2, 0xe0, 0x8e, 0x74, 0x4a, 0x0e,
+ 0xdf, 0x46, 0x9d, 0xac, 0x59, 0xc8, 0xf8, 0x5a },
+ .result = { 0x87, 0xb7, 0xf2, 0x12, 0xb6, 0x27, 0xf7, 0xa5,
+ 0x4c, 0xa5, 0xe0, 0xbc, 0xda, 0xdd, 0xd5, 0x38,
+ 0x9d, 0x9d, 0xe6, 0x15, 0x6c, 0xdb, 0xcf, 0x8e,
+ 0xbe, 0x14, 0xff, 0xbc, 0xfb, 0x43, 0x65, 0x51 },
+ .valid = true
+ },
+ /* wycheproof - public key on twist */
+ {
+ .private = { 0x58, 0x8c, 0x06, 0x1a, 0x50, 0x80, 0x4a, 0xc4,
+ 0x88, 0xad, 0x77, 0x4a, 0xc7, 0x16, 0xc3, 0xf5,
+ 0xba, 0x71, 0x4b, 0x27, 0x12, 0xe0, 0x48, 0x49,
+ 0x13, 0x79, 0xa5, 0x00, 0x21, 0x19, 0x98, 0xa8 },
+ .public = { 0x63, 0xaa, 0x40, 0xc6, 0xe3, 0x83, 0x46, 0xc5,
+ 0xca, 0xf2, 0x3a, 0x6d, 0xf0, 0xa5, 0xe6, 0xc8,
+ 0x08, 0x89, 0xa0, 0x86, 0x47, 0xe5, 0x51, 0xb3,
+ 0x56, 0x34, 0x49, 0xbe, 0xfc, 0xfc, 0x97, 0x33 },
+ .result = { 0xb1, 0xa7, 0x07, 0x51, 0x94, 0x95, 0xff, 0xff,
+ 0xb2, 0x98, 0xff, 0x94, 0x17, 0x16, 0xb0, 0x6d,
+ 0xfa, 0xb8, 0x7c, 0xf8, 0xd9, 0x11, 0x23, 0xfe,
+ 0x2b, 0xe9, 0xa2, 0x33, 0xdd, 0xa2, 0x22, 0x12 },
+ .valid = true
+ },
+ /* wycheproof - public key on twist */
+ {
+ .private = { 0xb0, 0x5b, 0xfd, 0x32, 0xe5, 0x53, 0x25, 0xd9,
+ 0xfd, 0x64, 0x8c, 0xb3, 0x02, 0x84, 0x80, 0x39,
+ 0x00, 0x0b, 0x39, 0x0e, 0x44, 0xd5, 0x21, 0xe5,
+ 0x8a, 0xab, 0x3b, 0x29, 0xa6, 0x96, 0x0b, 0xa8 },
+ .public = { 0x0f, 0x83, 0xc3, 0x6f, 0xde, 0xd9, 0xd3, 0x2f,
+ 0xad, 0xf4, 0xef, 0xa3, 0xae, 0x93, 0xa9, 0x0b,
+ 0xb5, 0xcf, 0xa6, 0x68, 0x93, 0xbc, 0x41, 0x2c,
+ 0x43, 0xfa, 0x72, 0x87, 0xdb, 0xb9, 0x97, 0x79 },
+ .result = { 0x67, 0xdd, 0x4a, 0x6e, 0x16, 0x55, 0x33, 0x53,
+ 0x4c, 0x0e, 0x3f, 0x17, 0x2e, 0x4a, 0xb8, 0x57,
+ 0x6b, 0xca, 0x92, 0x3a, 0x5f, 0x07, 0xb2, 0xc0,
+ 0x69, 0xb4, 0xc3, 0x10, 0xff, 0x2e, 0x93, 0x5b },
+ .valid = true
+ },
+ /* wycheproof - public key on twist */
+ {
+ .private = { 0x70, 0xe3, 0x4b, 0xcb, 0xe1, 0xf4, 0x7f, 0xbc,
+ 0x0f, 0xdd, 0xfd, 0x7c, 0x1e, 0x1a, 0xa5, 0x3d,
+ 0x57, 0xbf, 0xe0, 0xf6, 0x6d, 0x24, 0x30, 0x67,
+ 0xb4, 0x24, 0xbb, 0x62, 0x10, 0xbe, 0xd1, 0x9c },
+ .public = { 0x0b, 0x82, 0x11, 0xa2, 0xb6, 0x04, 0x90, 0x97,
+ 0xf6, 0x87, 0x1c, 0x6c, 0x05, 0x2d, 0x3c, 0x5f,
+ 0xc1, 0xba, 0x17, 0xda, 0x9e, 0x32, 0xae, 0x45,
+ 0x84, 0x03, 0xb0, 0x5b, 0xb2, 0x83, 0x09, 0x2a },
+ .result = { 0x4a, 0x06, 0x38, 0xcf, 0xaa, 0x9e, 0xf1, 0x93,
+ 0x3b, 0x47, 0xf8, 0x93, 0x92, 0x96, 0xa6, 0xb2,
+ 0x5b, 0xe5, 0x41, 0xef, 0x7f, 0x70, 0xe8, 0x44,
+ 0xc0, 0xbc, 0xc0, 0x0b, 0x13, 0x4d, 0xe6, 0x4a },
+ .valid = true
+ },
+ /* wycheproof - public key on twist */
+ {
+ .private = { 0x68, 0xc1, 0xf3, 0xa6, 0x53, 0xa4, 0xcd, 0xb1,
+ 0xd3, 0x7b, 0xba, 0x94, 0x73, 0x8f, 0x8b, 0x95,
+ 0x7a, 0x57, 0xbe, 0xb2, 0x4d, 0x64, 0x6e, 0x99,
+ 0x4d, 0xc2, 0x9a, 0x27, 0x6a, 0xad, 0x45, 0x8d },
+ .public = { 0x34, 0x3a, 0xc2, 0x0a, 0x3b, 0x9c, 0x6a, 0x27,
+ 0xb1, 0x00, 0x81, 0x76, 0x50, 0x9a, 0xd3, 0x07,
+ 0x35, 0x85, 0x6e, 0xc1, 0xc8, 0xd8, 0xfc, 0xae,
+ 0x13, 0x91, 0x2d, 0x08, 0xd1, 0x52, 0xf4, 0x6c },
+ .result = { 0x39, 0x94, 0x91, 0xfc, 0xe8, 0xdf, 0xab, 0x73,
+ 0xb4, 0xf9, 0xf6, 0x11, 0xde, 0x8e, 0xa0, 0xb2,
+ 0x7b, 0x28, 0xf8, 0x59, 0x94, 0x25, 0x0b, 0x0f,
+ 0x47, 0x5d, 0x58, 0x5d, 0x04, 0x2a, 0xc2, 0x07 },
+ .valid = true
+ },
+ /* wycheproof - public key on twist */
+ {
+ .private = { 0xd8, 0x77, 0xb2, 0x6d, 0x06, 0xdf, 0xf9, 0xd9,
+ 0xf7, 0xfd, 0x4c, 0x5b, 0x37, 0x69, 0xf8, 0xcd,
+ 0xd5, 0xb3, 0x05, 0x16, 0xa5, 0xab, 0x80, 0x6b,
+ 0xe3, 0x24, 0xff, 0x3e, 0xb6, 0x9e, 0xa0, 0xb2 },
+ .public = { 0xfa, 0x69, 0x5f, 0xc7, 0xbe, 0x8d, 0x1b, 0xe5,
+ 0xbf, 0x70, 0x48, 0x98, 0xf3, 0x88, 0xc4, 0x52,
+ 0xba, 0xfd, 0xd3, 0xb8, 0xea, 0xe8, 0x05, 0xf8,
+ 0x68, 0x1a, 0x8d, 0x15, 0xc2, 0xd4, 0xe1, 0x42 },
+ .result = { 0x2c, 0x4f, 0xe1, 0x1d, 0x49, 0x0a, 0x53, 0x86,
+ 0x17, 0x76, 0xb1, 0x3b, 0x43, 0x54, 0xab, 0xd4,
+ 0xcf, 0x5a, 0x97, 0x69, 0x9d, 0xb6, 0xe6, 0xc6,
+ 0x8c, 0x16, 0x26, 0xd0, 0x76, 0x62, 0xf7, 0x58 },
+ .valid = true
+ },
+ /* wycheproof - public key = 0 */
+ {
+ .private = { 0x20, 0x74, 0x94, 0x03, 0x8f, 0x2b, 0xb8, 0x11,
+ 0xd4, 0x78, 0x05, 0xbc, 0xdf, 0x04, 0xa2, 0xac,
+ 0x58, 0x5a, 0xda, 0x7f, 0x2f, 0x23, 0x38, 0x9b,
+ 0xfd, 0x46, 0x58, 0xf9, 0xdd, 0xd4, 0xde, 0xbc },
+ .public = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .valid = false
+ },
+ /* wycheproof - public key = 1 */
+ {
+ .private = { 0x20, 0x2e, 0x89, 0x72, 0xb6, 0x1c, 0x7e, 0x61,
+ 0x93, 0x0e, 0xb9, 0x45, 0x0b, 0x50, 0x70, 0xea,
+ 0xe1, 0xc6, 0x70, 0x47, 0x56, 0x85, 0x54, 0x1f,
+ 0x04, 0x76, 0x21, 0x7e, 0x48, 0x18, 0xcf, 0xab },
+ .public = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .valid = false
+ },
+ /* wycheproof - edge case on twist */
+ {
+ .private = { 0x38, 0xdd, 0xe9, 0xf3, 0xe7, 0xb7, 0x99, 0x04,
+ 0x5f, 0x9a, 0xc3, 0x79, 0x3d, 0x4a, 0x92, 0x77,
+ 0xda, 0xde, 0xad, 0xc4, 0x1b, 0xec, 0x02, 0x90,
+ 0xf8, 0x1f, 0x74, 0x4f, 0x73, 0x77, 0x5f, 0x84 },
+ .public = { 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .result = { 0x9a, 0x2c, 0xfe, 0x84, 0xff, 0x9c, 0x4a, 0x97,
+ 0x39, 0x62, 0x5c, 0xae, 0x4a, 0x3b, 0x82, 0xa9,
+ 0x06, 0x87, 0x7a, 0x44, 0x19, 0x46, 0xf8, 0xd7,
+ 0xb3, 0xd7, 0x95, 0xfe, 0x8f, 0x5d, 0x16, 0x39 },
+ .valid = true
+ },
+ /* wycheproof - edge case on twist */
+ {
+ .private = { 0x98, 0x57, 0xa9, 0x14, 0xe3, 0xc2, 0x90, 0x36,
+ 0xfd, 0x9a, 0x44, 0x2b, 0xa5, 0x26, 0xb5, 0xcd,
+ 0xcd, 0xf2, 0x82, 0x16, 0x15, 0x3e, 0x63, 0x6c,
+ 0x10, 0x67, 0x7a, 0xca, 0xb6, 0xbd, 0x6a, 0xa5 },
+ .public = { 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .result = { 0x4d, 0xa4, 0xe0, 0xaa, 0x07, 0x2c, 0x23, 0x2e,
+ 0xe2, 0xf0, 0xfa, 0x4e, 0x51, 0x9a, 0xe5, 0x0b,
+ 0x52, 0xc1, 0xed, 0xd0, 0x8a, 0x53, 0x4d, 0x4e,
+ 0xf3, 0x46, 0xc2, 0xe1, 0x06, 0xd2, 0x1d, 0x60 },
+ .valid = true
+ },
+ /* wycheproof - edge case on twist */
+ {
+ .private = { 0x48, 0xe2, 0x13, 0x0d, 0x72, 0x33, 0x05, 0xed,
+ 0x05, 0xe6, 0xe5, 0x89, 0x4d, 0x39, 0x8a, 0x5e,
+ 0x33, 0x36, 0x7a, 0x8c, 0x6a, 0xac, 0x8f, 0xcd,
+ 0xf0, 0xa8, 0x8e, 0x4b, 0x42, 0x82, 0x0d, 0xb7 },
+ .public = { 0xff, 0xff, 0xff, 0x03, 0x00, 0x00, 0xf8, 0xff,
+ 0xff, 0x1f, 0x00, 0x00, 0xc0, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0xfe, 0xff, 0xff, 0x07, 0x00,
+ 0x00, 0xf0, 0xff, 0xff, 0x3f, 0x00, 0x00, 0x00 },
+ .result = { 0x9e, 0xd1, 0x0c, 0x53, 0x74, 0x7f, 0x64, 0x7f,
+ 0x82, 0xf4, 0x51, 0x25, 0xd3, 0xde, 0x15, 0xa1,
+ 0xe6, 0xb8, 0x24, 0x49, 0x6a, 0xb4, 0x04, 0x10,
+ 0xff, 0xcc, 0x3c, 0xfe, 0x95, 0x76, 0x0f, 0x3b },
+ .valid = true
+ },
+ /* wycheproof - edge case on twist */
+ {
+ .private = { 0x28, 0xf4, 0x10, 0x11, 0x69, 0x18, 0x51, 0xb3,
+ 0xa6, 0x2b, 0x64, 0x15, 0x53, 0xb3, 0x0d, 0x0d,
+ 0xfd, 0xdc, 0xb8, 0xff, 0xfc, 0xf5, 0x37, 0x00,
+ 0xa7, 0xbe, 0x2f, 0x6a, 0x87, 0x2e, 0x9f, 0xb0 },
+ .public = { 0x00, 0x00, 0x00, 0xfc, 0xff, 0xff, 0x07, 0x00,
+ 0x00, 0xe0, 0xff, 0xff, 0x3f, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0x01, 0x00, 0x00, 0xf8, 0xff,
+ 0xff, 0x0f, 0x00, 0x00, 0xc0, 0xff, 0xff, 0x7f },
+ .result = { 0xcf, 0x72, 0xb4, 0xaa, 0x6a, 0xa1, 0xc9, 0xf8,
+ 0x94, 0xf4, 0x16, 0x5b, 0x86, 0x10, 0x9a, 0xa4,
+ 0x68, 0x51, 0x76, 0x48, 0xe1, 0xf0, 0xcc, 0x70,
+ 0xe1, 0xab, 0x08, 0x46, 0x01, 0x76, 0x50, 0x6b },
+ .valid = true
+ },
+ /* wycheproof - edge case on twist */
+ {
+ .private = { 0x18, 0xa9, 0x3b, 0x64, 0x99, 0xb9, 0xf6, 0xb3,
+ 0x22, 0x5c, 0xa0, 0x2f, 0xef, 0x41, 0x0e, 0x0a,
+ 0xde, 0xc2, 0x35, 0x32, 0x32, 0x1d, 0x2d, 0x8e,
+ 0xf1, 0xa6, 0xd6, 0x02, 0xa8, 0xc6, 0x5b, 0x83 },
+ .public = { 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0x7f },
+ .result = { 0x5d, 0x50, 0xb6, 0x28, 0x36, 0xbb, 0x69, 0x57,
+ 0x94, 0x10, 0x38, 0x6c, 0xf7, 0xbb, 0x81, 0x1c,
+ 0x14, 0xbf, 0x85, 0xb1, 0xc7, 0xb1, 0x7e, 0x59,
+ 0x24, 0xc7, 0xff, 0xea, 0x91, 0xef, 0x9e, 0x12 },
+ .valid = true
+ },
+ /* wycheproof - edge case on twist */
+ {
+ .private = { 0xc0, 0x1d, 0x13, 0x05, 0xa1, 0x33, 0x8a, 0x1f,
+ 0xca, 0xc2, 0xba, 0x7e, 0x2e, 0x03, 0x2b, 0x42,
+ 0x7e, 0x0b, 0x04, 0x90, 0x31, 0x65, 0xac, 0xa9,
+ 0x57, 0xd8, 0xd0, 0x55, 0x3d, 0x87, 0x17, 0xb0 },
+ .public = { 0xea, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
+ .result = { 0x19, 0x23, 0x0e, 0xb1, 0x48, 0xd5, 0xd6, 0x7c,
+ 0x3c, 0x22, 0xab, 0x1d, 0xae, 0xff, 0x80, 0xa5,
+ 0x7e, 0xae, 0x42, 0x65, 0xce, 0x28, 0x72, 0x65,
+ 0x7b, 0x2c, 0x80, 0x99, 0xfc, 0x69, 0x8e, 0x50 },
+ .valid = true
+ },
+ /* wycheproof - edge case for public key */
+ {
+ .private = { 0x38, 0x6f, 0x7f, 0x16, 0xc5, 0x07, 0x31, 0xd6,
+ 0x4f, 0x82, 0xe6, 0xa1, 0x70, 0xb1, 0x42, 0xa4,
+ 0xe3, 0x4f, 0x31, 0xfd, 0x77, 0x68, 0xfc, 0xb8,
+ 0x90, 0x29, 0x25, 0xe7, 0xd1, 0xe2, 0x1a, 0xbe },
+ .public = { 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .result = { 0x0f, 0xca, 0xb5, 0xd8, 0x42, 0xa0, 0x78, 0xd7,
+ 0xa7, 0x1f, 0xc5, 0x9b, 0x57, 0xbf, 0xb4, 0xca,
+ 0x0b, 0xe6, 0x87, 0x3b, 0x49, 0xdc, 0xdb, 0x9f,
+ 0x44, 0xe1, 0x4a, 0xe8, 0xfb, 0xdf, 0xa5, 0x42 },
+ .valid = true
+ },
+ /* wycheproof - edge case for public key */
+ {
+ .private = { 0xe0, 0x23, 0xa2, 0x89, 0xbd, 0x5e, 0x90, 0xfa,
+ 0x28, 0x04, 0xdd, 0xc0, 0x19, 0xa0, 0x5e, 0xf3,
+ 0xe7, 0x9d, 0x43, 0x4b, 0xb6, 0xea, 0x2f, 0x52,
+ 0x2e, 0xcb, 0x64, 0x3a, 0x75, 0x29, 0x6e, 0x95 },
+ .public = { 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 },
+ .result = { 0x54, 0xce, 0x8f, 0x22, 0x75, 0xc0, 0x77, 0xe3,
+ 0xb1, 0x30, 0x6a, 0x39, 0x39, 0xc5, 0xe0, 0x3e,
+ 0xef, 0x6b, 0xbb, 0x88, 0x06, 0x05, 0x44, 0x75,
+ 0x8d, 0x9f, 0xef, 0x59, 0xb0, 0xbc, 0x3e, 0x4f },
+ .valid = true
+ },
+ /* wycheproof - edge case for public key */
+ {
+ .private = { 0x68, 0xf0, 0x10, 0xd6, 0x2e, 0xe8, 0xd9, 0x26,
+ 0x05, 0x3a, 0x36, 0x1c, 0x3a, 0x75, 0xc6, 0xea,
+ 0x4e, 0xbd, 0xc8, 0x60, 0x6a, 0xb2, 0x85, 0x00,
+ 0x3a, 0x6f, 0x8f, 0x40, 0x76, 0xb0, 0x1e, 0x83 },
+ .public = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x03 },
+ .result = { 0xf1, 0x36, 0x77, 0x5c, 0x5b, 0xeb, 0x0a, 0xf8,
+ 0x11, 0x0a, 0xf1, 0x0b, 0x20, 0x37, 0x23, 0x32,
+ 0x04, 0x3c, 0xab, 0x75, 0x24, 0x19, 0x67, 0x87,
+ 0x75, 0xa2, 0x23, 0xdf, 0x57, 0xc9, 0xd3, 0x0d },
+ .valid = true
+ },
+ /* wycheproof - edge case for public key */
+ {
+ .private = { 0x58, 0xeb, 0xcb, 0x35, 0xb0, 0xf8, 0x84, 0x5c,
+ 0xaf, 0x1e, 0xc6, 0x30, 0xf9, 0x65, 0x76, 0xb6,
+ 0x2c, 0x4b, 0x7b, 0x6c, 0x36, 0xb2, 0x9d, 0xeb,
+ 0x2c, 0xb0, 0x08, 0x46, 0x51, 0x75, 0x5c, 0x96 },
+ .public = { 0xff, 0xff, 0xff, 0xfb, 0xff, 0xff, 0xfb, 0xff,
+ 0xff, 0xdf, 0xff, 0xff, 0xdf, 0xff, 0xff, 0xff,
+ 0xfe, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xf7, 0xff,
+ 0xff, 0xf7, 0xff, 0xff, 0xbf, 0xff, 0xff, 0x3f },
+ .result = { 0xbf, 0x9a, 0xff, 0xd0, 0x6b, 0x84, 0x40, 0x85,
+ 0x58, 0x64, 0x60, 0x96, 0x2e, 0xf2, 0x14, 0x6f,
+ 0xf3, 0xd4, 0x53, 0x3d, 0x94, 0x44, 0xaa, 0xb0,
+ 0x06, 0xeb, 0x88, 0xcc, 0x30, 0x54, 0x40, 0x7d },
+ .valid = true
+ },
+ /* wycheproof - edge case for public key */
+ {
+ .private = { 0x18, 0x8c, 0x4b, 0xc5, 0xb9, 0xc4, 0x4b, 0x38,
+ 0xbb, 0x65, 0x8b, 0x9b, 0x2a, 0xe8, 0x2d, 0x5b,
+ 0x01, 0x01, 0x5e, 0x09, 0x31, 0x84, 0xb1, 0x7c,
+ 0xb7, 0x86, 0x35, 0x03, 0xa7, 0x83, 0xe1, 0xbb },
+ .public = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x3f },
+ .result = { 0xd4, 0x80, 0xde, 0x04, 0xf6, 0x99, 0xcb, 0x3b,
+ 0xe0, 0x68, 0x4a, 0x9c, 0xc2, 0xe3, 0x12, 0x81,
+ 0xea, 0x0b, 0xc5, 0xa9, 0xdc, 0xc1, 0x57, 0xd3,
+ 0xd2, 0x01, 0x58, 0xd4, 0x6c, 0xa5, 0x24, 0x6d },
+ .valid = true
+ },
+ /* wycheproof - edge case for public key */
+ {
+ .private = { 0xe0, 0x6c, 0x11, 0xbb, 0x2e, 0x13, 0xce, 0x3d,
+ 0xc7, 0x67, 0x3f, 0x67, 0xf5, 0x48, 0x22, 0x42,
+ 0x90, 0x94, 0x23, 0xa9, 0xae, 0x95, 0xee, 0x98,
+ 0x6a, 0x98, 0x8d, 0x98, 0xfa, 0xee, 0x23, 0xa2 },
+ .public = { 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0x7f,
+ 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0x7f },
+ .result = { 0x4c, 0x44, 0x01, 0xcc, 0xe6, 0xb5, 0x1e, 0x4c,
+ 0xb1, 0x8f, 0x27, 0x90, 0x24, 0x6c, 0x9b, 0xf9,
+ 0x14, 0xdb, 0x66, 0x77, 0x50, 0xa1, 0xcb, 0x89,
+ 0x06, 0x90, 0x92, 0xaf, 0x07, 0x29, 0x22, 0x76 },
+ .valid = true
+ },
+ /* wycheproof - edge case for public key */
+ {
+ .private = { 0xc0, 0x65, 0x8c, 0x46, 0xdd, 0xe1, 0x81, 0x29,
+ 0x29, 0x38, 0x77, 0x53, 0x5b, 0x11, 0x62, 0xb6,
+ 0xf9, 0xf5, 0x41, 0x4a, 0x23, 0xcf, 0x4d, 0x2c,
+ 0xbc, 0x14, 0x0a, 0x4d, 0x99, 0xda, 0x2b, 0x8f },
+ .public = { 0xeb, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
+ .result = { 0x57, 0x8b, 0xa8, 0xcc, 0x2d, 0xbd, 0xc5, 0x75,
+ 0xaf, 0xcf, 0x9d, 0xf2, 0xb3, 0xee, 0x61, 0x89,
+ 0xf5, 0x33, 0x7d, 0x68, 0x54, 0xc7, 0x9b, 0x4c,
+ 0xe1, 0x65, 0xea, 0x12, 0x29, 0x3b, 0x3a, 0x0f },
+ .valid = true
+ },
+ /* wycheproof - public key with low order */
+ {
+ .private = { 0x10, 0x25, 0x5c, 0x92, 0x30, 0xa9, 0x7a, 0x30,
+ 0xa4, 0x58, 0xca, 0x28, 0x4a, 0x62, 0x96, 0x69,
+ 0x29, 0x3a, 0x31, 0x89, 0x0c, 0xda, 0x9d, 0x14,
+ 0x7f, 0xeb, 0xc7, 0xd1, 0xe2, 0x2d, 0x6b, 0xb1 },
+ .public = { 0xe0, 0xeb, 0x7a, 0x7c, 0x3b, 0x41, 0xb8, 0xae,
+ 0x16, 0x56, 0xe3, 0xfa, 0xf1, 0x9f, 0xc4, 0x6a,
+ 0xda, 0x09, 0x8d, 0xeb, 0x9c, 0x32, 0xb1, 0xfd,
+ 0x86, 0x62, 0x05, 0x16, 0x5f, 0x49, 0xb8, 0x00 },
+ .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .valid = false
+ },
+ /* wycheproof - public key with low order */
+ {
+ .private = { 0x78, 0xf1, 0xe8, 0xed, 0xf1, 0x44, 0x81, 0xb3,
+ 0x89, 0x44, 0x8d, 0xac, 0x8f, 0x59, 0xc7, 0x0b,
+ 0x03, 0x8e, 0x7c, 0xf9, 0x2e, 0xf2, 0xc7, 0xef,
+ 0xf5, 0x7a, 0x72, 0x46, 0x6e, 0x11, 0x52, 0x96 },
+ .public = { 0x5f, 0x9c, 0x95, 0xbc, 0xa3, 0x50, 0x8c, 0x24,
+ 0xb1, 0xd0, 0xb1, 0x55, 0x9c, 0x83, 0xef, 0x5b,
+ 0x04, 0x44, 0x5c, 0xc4, 0x58, 0x1c, 0x8e, 0x86,
+ 0xd8, 0x22, 0x4e, 0xdd, 0xd0, 0x9f, 0x11, 0x57 },
+ .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .valid = false
+ },
+ /* wycheproof - public key with low order */
+ {
+ .private = { 0xa0, 0xa0, 0x5a, 0x3e, 0x8f, 0x9f, 0x44, 0x20,
+ 0x4d, 0x5f, 0x80, 0x59, 0xa9, 0x4a, 0xc7, 0xdf,
+ 0xc3, 0x9a, 0x49, 0xac, 0x01, 0x6d, 0xd7, 0x43,
+ 0xdb, 0xfa, 0x43, 0xc5, 0xd6, 0x71, 0xfd, 0x88 },
+ .public = { 0xec, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
+ .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .valid = false
+ },
+ /* wycheproof - public key with low order */
+ {
+ .private = { 0xd0, 0xdb, 0xb3, 0xed, 0x19, 0x06, 0x66, 0x3f,
+ 0x15, 0x42, 0x0a, 0xf3, 0x1f, 0x4e, 0xaf, 0x65,
+ 0x09, 0xd9, 0xa9, 0x94, 0x97, 0x23, 0x50, 0x06,
+ 0x05, 0xad, 0x7c, 0x1c, 0x6e, 0x74, 0x50, 0xa9 },
+ .public = { 0xed, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
+ .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .valid = false
+ },
+ /* wycheproof - public key with low order */
+ {
+ .private = { 0xc0, 0xb1, 0xd0, 0xeb, 0x22, 0xb2, 0x44, 0xfe,
+ 0x32, 0x91, 0x14, 0x00, 0x72, 0xcd, 0xd9, 0xd9,
+ 0x89, 0xb5, 0xf0, 0xec, 0xd9, 0x6c, 0x10, 0x0f,
+ 0xeb, 0x5b, 0xca, 0x24, 0x1c, 0x1d, 0x9f, 0x8f },
+ .public = { 0xee, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
+ .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .valid = false
+ },
+ /* wycheproof - public key with low order */
+ {
+ .private = { 0x48, 0x0b, 0xf4, 0x5f, 0x59, 0x49, 0x42, 0xa8,
+ 0xbc, 0x0f, 0x33, 0x53, 0xc6, 0xe8, 0xb8, 0x85,
+ 0x3d, 0x77, 0xf3, 0x51, 0xf1, 0xc2, 0xca, 0x6c,
+ 0x2d, 0x1a, 0xbf, 0x8a, 0x00, 0xb4, 0x22, 0x9c },
+ .public = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80 },
+ .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .valid = false
+ },
+ /* wycheproof - public key with low order */
+ {
+ .private = { 0x30, 0xf9, 0x93, 0xfc, 0xf8, 0x51, 0x4f, 0xc8,
+ 0x9b, 0xd8, 0xdb, 0x14, 0xcd, 0x43, 0xba, 0x0d,
+ 0x4b, 0x25, 0x30, 0xe7, 0x3c, 0x42, 0x76, 0xa0,
+ 0x5e, 0x1b, 0x14, 0x5d, 0x42, 0x0c, 0xed, 0xb4 },
+ .public = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80 },
+ .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .valid = false
+ },
+ /* wycheproof - public key with low order */
+ {
+ .private = { 0xc0, 0x49, 0x74, 0xb7, 0x58, 0x38, 0x0e, 0x2a,
+ 0x5b, 0x5d, 0xf6, 0xeb, 0x09, 0xbb, 0x2f, 0x6b,
+ 0x34, 0x34, 0xf9, 0x82, 0x72, 0x2a, 0x8e, 0x67,
+ 0x6d, 0x3d, 0xa2, 0x51, 0xd1, 0xb3, 0xde, 0x83 },
+ .public = { 0xe0, 0xeb, 0x7a, 0x7c, 0x3b, 0x41, 0xb8, 0xae,
+ 0x16, 0x56, 0xe3, 0xfa, 0xf1, 0x9f, 0xc4, 0x6a,
+ 0xda, 0x09, 0x8d, 0xeb, 0x9c, 0x32, 0xb1, 0xfd,
+ 0x86, 0x62, 0x05, 0x16, 0x5f, 0x49, 0xb8, 0x80 },
+ .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .valid = false
+ },
+ /* wycheproof - public key with low order */
+ {
+ .private = { 0x50, 0x2a, 0x31, 0x37, 0x3d, 0xb3, 0x24, 0x46,
+ 0x84, 0x2f, 0xe5, 0xad, 0xd3, 0xe0, 0x24, 0x02,
+ 0x2e, 0xa5, 0x4f, 0x27, 0x41, 0x82, 0xaf, 0xc3,
+ 0xd9, 0xf1, 0xbb, 0x3d, 0x39, 0x53, 0x4e, 0xb5 },
+ .public = { 0x5f, 0x9c, 0x95, 0xbc, 0xa3, 0x50, 0x8c, 0x24,
+ 0xb1, 0xd0, 0xb1, 0x55, 0x9c, 0x83, 0xef, 0x5b,
+ 0x04, 0x44, 0x5c, 0xc4, 0x58, 0x1c, 0x8e, 0x86,
+ 0xd8, 0x22, 0x4e, 0xdd, 0xd0, 0x9f, 0x11, 0xd7 },
+ .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .valid = false
+ },
+ /* wycheproof - public key with low order */
+ {
+ .private = { 0x90, 0xfa, 0x64, 0x17, 0xb0, 0xe3, 0x70, 0x30,
+ 0xfd, 0x6e, 0x43, 0xef, 0xf2, 0xab, 0xae, 0xf1,
+ 0x4c, 0x67, 0x93, 0x11, 0x7a, 0x03, 0x9c, 0xf6,
+ 0x21, 0x31, 0x8b, 0xa9, 0x0f, 0x4e, 0x98, 0xbe },
+ .public = { 0xec, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
+ .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .valid = false
+ },
+ /* wycheproof - public key with low order */
+ {
+ .private = { 0x78, 0xad, 0x3f, 0x26, 0x02, 0x7f, 0x1c, 0x9f,
+ 0xdd, 0x97, 0x5a, 0x16, 0x13, 0xb9, 0x47, 0x77,
+ 0x9b, 0xad, 0x2c, 0xf2, 0xb7, 0x41, 0xad, 0xe0,
+ 0x18, 0x40, 0x88, 0x5a, 0x30, 0xbb, 0x97, 0x9c },
+ .public = { 0xed, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
+ .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .valid = false
+ },
+ /* wycheproof - public key with low order */
+ {
+ .private = { 0x98, 0xe2, 0x3d, 0xe7, 0xb1, 0xe0, 0x92, 0x6e,
+ 0xd9, 0xc8, 0x7e, 0x7b, 0x14, 0xba, 0xf5, 0x5f,
+ 0x49, 0x7a, 0x1d, 0x70, 0x96, 0xf9, 0x39, 0x77,
+ 0x68, 0x0e, 0x44, 0xdc, 0x1c, 0x7b, 0x7b, 0x8b },
+ .public = { 0xee, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
+ .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .valid = false
+ },
+ /* wycheproof - public key >= p */
+ {
+ .private = { 0xf0, 0x1e, 0x48, 0xda, 0xfa, 0xc9, 0xd7, 0xbc,
+ 0xf5, 0x89, 0xcb, 0xc3, 0x82, 0xc8, 0x78, 0xd1,
+ 0x8b, 0xda, 0x35, 0x50, 0x58, 0x9f, 0xfb, 0x5d,
+ 0x50, 0xb5, 0x23, 0xbe, 0xbe, 0x32, 0x9d, 0xae },
+ .public = { 0xef, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
+ .result = { 0xbd, 0x36, 0xa0, 0x79, 0x0e, 0xb8, 0x83, 0x09,
+ 0x8c, 0x98, 0x8b, 0x21, 0x78, 0x67, 0x73, 0xde,
+ 0x0b, 0x3a, 0x4d, 0xf1, 0x62, 0x28, 0x2c, 0xf1,
+ 0x10, 0xde, 0x18, 0xdd, 0x48, 0x4c, 0xe7, 0x4b },
+ .valid = true
+ },
+ /* wycheproof - public key >= p */
+ {
+ .private = { 0x28, 0x87, 0x96, 0xbc, 0x5a, 0xff, 0x4b, 0x81,
+ 0xa3, 0x75, 0x01, 0x75, 0x7b, 0xc0, 0x75, 0x3a,
+ 0x3c, 0x21, 0x96, 0x47, 0x90, 0xd3, 0x86, 0x99,
+ 0x30, 0x8d, 0xeb, 0xc1, 0x7a, 0x6e, 0xaf, 0x8d },
+ .public = { 0xf0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
+ .result = { 0xb4, 0xe0, 0xdd, 0x76, 0xda, 0x7b, 0x07, 0x17,
+ 0x28, 0xb6, 0x1f, 0x85, 0x67, 0x71, 0xaa, 0x35,
+ 0x6e, 0x57, 0xed, 0xa7, 0x8a, 0x5b, 0x16, 0x55,
+ 0xcc, 0x38, 0x20, 0xfb, 0x5f, 0x85, 0x4c, 0x5c },
+ .valid = true
+ },
+ /* wycheproof - public key >= p */
+ {
+ .private = { 0x98, 0xdf, 0x84, 0x5f, 0x66, 0x51, 0xbf, 0x11,
+ 0x38, 0x22, 0x1f, 0x11, 0x90, 0x41, 0xf7, 0x2b,
+ 0x6d, 0xbc, 0x3c, 0x4a, 0xce, 0x71, 0x43, 0xd9,
+ 0x9f, 0xd5, 0x5a, 0xd8, 0x67, 0x48, 0x0d, 0xa8 },
+ .public = { 0xf1, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
+ .result = { 0x6f, 0xdf, 0x6c, 0x37, 0x61, 0x1d, 0xbd, 0x53,
+ 0x04, 0xdc, 0x0f, 0x2e, 0xb7, 0xc9, 0x51, 0x7e,
+ 0xb3, 0xc5, 0x0e, 0x12, 0xfd, 0x05, 0x0a, 0xc6,
+ 0xde, 0xc2, 0x70, 0x71, 0xd4, 0xbf, 0xc0, 0x34 },
+ .valid = true
+ },
+ /* wycheproof - public key >= p */
+ {
+ .private = { 0xf0, 0x94, 0x98, 0xe4, 0x6f, 0x02, 0xf8, 0x78,
+ 0x82, 0x9e, 0x78, 0xb8, 0x03, 0xd3, 0x16, 0xa2,
+ 0xed, 0x69, 0x5d, 0x04, 0x98, 0xa0, 0x8a, 0xbd,
+ 0xf8, 0x27, 0x69, 0x30, 0xe2, 0x4e, 0xdc, 0xb0 },
+ .public = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
+ .result = { 0x4c, 0x8f, 0xc4, 0xb1, 0xc6, 0xab, 0x88, 0xfb,
+ 0x21, 0xf1, 0x8f, 0x6d, 0x4c, 0x81, 0x02, 0x40,
+ 0xd4, 0xe9, 0x46, 0x51, 0xba, 0x44, 0xf7, 0xa2,
+ 0xc8, 0x63, 0xce, 0xc7, 0xdc, 0x56, 0x60, 0x2d },
+ .valid = true
+ },
+ /* wycheproof - public key >= p */
+ {
+ .private = { 0x18, 0x13, 0xc1, 0x0a, 0x5c, 0x7f, 0x21, 0xf9,
+ 0x6e, 0x17, 0xf2, 0x88, 0xc0, 0xcc, 0x37, 0x60,
+ 0x7c, 0x04, 0xc5, 0xf5, 0xae, 0xa2, 0xdb, 0x13,
+ 0x4f, 0x9e, 0x2f, 0xfc, 0x66, 0xbd, 0x9d, 0xb8 },
+ .public = { 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80 },
+ .result = { 0x1c, 0xd0, 0xb2, 0x82, 0x67, 0xdc, 0x54, 0x1c,
+ 0x64, 0x2d, 0x6d, 0x7d, 0xca, 0x44, 0xa8, 0xb3,
+ 0x8a, 0x63, 0x73, 0x6e, 0xef, 0x5c, 0x4e, 0x65,
+ 0x01, 0xff, 0xbb, 0xb1, 0x78, 0x0c, 0x03, 0x3c },
+ .valid = true
+ },
+ /* wycheproof - public key >= p */
+ {
+ .private = { 0x78, 0x57, 0xfb, 0x80, 0x86, 0x53, 0x64, 0x5a,
+ 0x0b, 0xeb, 0x13, 0x8a, 0x64, 0xf5, 0xf4, 0xd7,
+ 0x33, 0xa4, 0x5e, 0xa8, 0x4c, 0x3c, 0xda, 0x11,
+ 0xa9, 0xc0, 0x6f, 0x7e, 0x71, 0x39, 0x14, 0x9e },
+ .public = { 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80 },
+ .result = { 0x87, 0x55, 0xbe, 0x01, 0xc6, 0x0a, 0x7e, 0x82,
+ 0x5c, 0xff, 0x3e, 0x0e, 0x78, 0xcb, 0x3a, 0xa4,
+ 0x33, 0x38, 0x61, 0x51, 0x6a, 0xa5, 0x9b, 0x1c,
+ 0x51, 0xa8, 0xb2, 0xa5, 0x43, 0xdf, 0xa8, 0x22 },
+ .valid = true
+ },
+ /* wycheproof - public key >= p */
+ {
+ .private = { 0xe0, 0x3a, 0xa8, 0x42, 0xe2, 0xab, 0xc5, 0x6e,
+ 0x81, 0xe8, 0x7b, 0x8b, 0x9f, 0x41, 0x7b, 0x2a,
+ 0x1e, 0x59, 0x13, 0xc7, 0x23, 0xee, 0xd2, 0x8d,
+ 0x75, 0x2f, 0x8d, 0x47, 0xa5, 0x9f, 0x49, 0x8f },
+ .public = { 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80 },
+ .result = { 0x54, 0xc9, 0xa1, 0xed, 0x95, 0xe5, 0x46, 0xd2,
+ 0x78, 0x22, 0xa3, 0x60, 0x93, 0x1d, 0xda, 0x60,
+ 0xa1, 0xdf, 0x04, 0x9d, 0xa6, 0xf9, 0x04, 0x25,
+ 0x3c, 0x06, 0x12, 0xbb, 0xdc, 0x08, 0x74, 0x76 },
+ .valid = true
+ },
+ /* wycheproof - public key >= p */
+ {
+ .private = { 0xf8, 0xf7, 0x07, 0xb7, 0x99, 0x9b, 0x18, 0xcb,
+ 0x0d, 0x6b, 0x96, 0x12, 0x4f, 0x20, 0x45, 0x97,
+ 0x2c, 0xa2, 0x74, 0xbf, 0xc1, 0x54, 0xad, 0x0c,
+ 0x87, 0x03, 0x8c, 0x24, 0xc6, 0xd0, 0xd4, 0xb2 },
+ .public = { 0xda, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
+ .result = { 0xcc, 0x1f, 0x40, 0xd7, 0x43, 0xcd, 0xc2, 0x23,
+ 0x0e, 0x10, 0x43, 0xda, 0xba, 0x8b, 0x75, 0xe8,
+ 0x10, 0xf1, 0xfb, 0xab, 0x7f, 0x25, 0x52, 0x69,
+ 0xbd, 0x9e, 0xbb, 0x29, 0xe6, 0xbf, 0x49, 0x4f },
+ .valid = true
+ },
+ /* wycheproof - public key >= p */
+ {
+ .private = { 0xa0, 0x34, 0xf6, 0x84, 0xfa, 0x63, 0x1e, 0x1a,
+ 0x34, 0x81, 0x18, 0xc1, 0xce, 0x4c, 0x98, 0x23,
+ 0x1f, 0x2d, 0x9e, 0xec, 0x9b, 0xa5, 0x36, 0x5b,
+ 0x4a, 0x05, 0xd6, 0x9a, 0x78, 0x5b, 0x07, 0x96 },
+ .public = { 0xdb, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
+ .result = { 0x54, 0x99, 0x8e, 0xe4, 0x3a, 0x5b, 0x00, 0x7b,
+ 0xf4, 0x99, 0xf0, 0x78, 0xe7, 0x36, 0x52, 0x44,
+ 0x00, 0xa8, 0xb5, 0xc7, 0xe9, 0xb9, 0xb4, 0x37,
+ 0x71, 0x74, 0x8c, 0x7c, 0xdf, 0x88, 0x04, 0x12 },
+ .valid = true
+ },
+ /* wycheproof - public key >= p */
+ {
+ .private = { 0x30, 0xb6, 0xc6, 0xa0, 0xf2, 0xff, 0xa6, 0x80,
+ 0x76, 0x8f, 0x99, 0x2b, 0xa8, 0x9e, 0x15, 0x2d,
+ 0x5b, 0xc9, 0x89, 0x3d, 0x38, 0xc9, 0x11, 0x9b,
+ 0xe4, 0xf7, 0x67, 0xbf, 0xab, 0x6e, 0x0c, 0xa5 },
+ .public = { 0xdc, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
+ .result = { 0xea, 0xd9, 0xb3, 0x8e, 0xfd, 0xd7, 0x23, 0x63,
+ 0x79, 0x34, 0xe5, 0x5a, 0xb7, 0x17, 0xa7, 0xae,
+ 0x09, 0xeb, 0x86, 0xa2, 0x1d, 0xc3, 0x6a, 0x3f,
+ 0xee, 0xb8, 0x8b, 0x75, 0x9e, 0x39, 0x1e, 0x09 },
+ .valid = true
+ },
+ /* wycheproof - public key >= p */
+ {
+ .private = { 0x90, 0x1b, 0x9d, 0xcf, 0x88, 0x1e, 0x01, 0xe0,
+ 0x27, 0x57, 0x50, 0x35, 0xd4, 0x0b, 0x43, 0xbd,
+ 0xc1, 0xc5, 0x24, 0x2e, 0x03, 0x08, 0x47, 0x49,
+ 0x5b, 0x0c, 0x72, 0x86, 0x46, 0x9b, 0x65, 0x91 },
+ .public = { 0xea, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
+ .result = { 0x60, 0x2f, 0xf4, 0x07, 0x89, 0xb5, 0x4b, 0x41,
+ 0x80, 0x59, 0x15, 0xfe, 0x2a, 0x62, 0x21, 0xf0,
+ 0x7a, 0x50, 0xff, 0xc2, 0xc3, 0xfc, 0x94, 0xcf,
+ 0x61, 0xf1, 0x3d, 0x79, 0x04, 0xe8, 0x8e, 0x0e },
+ .valid = true
+ },
+ /* wycheproof - public key >= p */
+ {
+ .private = { 0x80, 0x46, 0x67, 0x7c, 0x28, 0xfd, 0x82, 0xc9,
+ 0xa1, 0xbd, 0xb7, 0x1a, 0x1a, 0x1a, 0x34, 0xfa,
+ 0xba, 0x12, 0x25, 0xe2, 0x50, 0x7f, 0xe3, 0xf5,
+ 0x4d, 0x10, 0xbd, 0x5b, 0x0d, 0x86, 0x5f, 0x8e },
+ .public = { 0xeb, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
+ .result = { 0xe0, 0x0a, 0xe8, 0xb1, 0x43, 0x47, 0x12, 0x47,
+ 0xba, 0x24, 0xf1, 0x2c, 0x88, 0x55, 0x36, 0xc3,
+ 0xcb, 0x98, 0x1b, 0x58, 0xe1, 0xe5, 0x6b, 0x2b,
+ 0xaf, 0x35, 0xc1, 0x2a, 0xe1, 0xf7, 0x9c, 0x26 },
+ .valid = true
+ },
+ /* wycheproof - public key >= p */
+ {
+ .private = { 0x60, 0x2f, 0x7e, 0x2f, 0x68, 0xa8, 0x46, 0xb8,
+ 0x2c, 0xc2, 0x69, 0xb1, 0xd4, 0x8e, 0x93, 0x98,
+ 0x86, 0xae, 0x54, 0xfd, 0x63, 0x6c, 0x1f, 0xe0,
+ 0x74, 0xd7, 0x10, 0x12, 0x7d, 0x47, 0x24, 0x91 },
+ .public = { 0xef, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
+ .result = { 0x98, 0xcb, 0x9b, 0x50, 0xdd, 0x3f, 0xc2, 0xb0,
+ 0xd4, 0xf2, 0xd2, 0xbf, 0x7c, 0x5c, 0xfd, 0xd1,
+ 0x0c, 0x8f, 0xcd, 0x31, 0xfc, 0x40, 0xaf, 0x1a,
+ 0xd4, 0x4f, 0x47, 0xc1, 0x31, 0x37, 0x63, 0x62 },
+ .valid = true
+ },
+ /* wycheproof - public key >= p */
+ {
+ .private = { 0x60, 0x88, 0x7b, 0x3d, 0xc7, 0x24, 0x43, 0x02,
+ 0x6e, 0xbe, 0xdb, 0xbb, 0xb7, 0x06, 0x65, 0xf4,
+ 0x2b, 0x87, 0xad, 0xd1, 0x44, 0x0e, 0x77, 0x68,
+ 0xfb, 0xd7, 0xe8, 0xe2, 0xce, 0x5f, 0x63, 0x9d },
+ .public = { 0xf0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
+ .result = { 0x38, 0xd6, 0x30, 0x4c, 0x4a, 0x7e, 0x6d, 0x9f,
+ 0x79, 0x59, 0x33, 0x4f, 0xb5, 0x24, 0x5b, 0xd2,
+ 0xc7, 0x54, 0x52, 0x5d, 0x4c, 0x91, 0xdb, 0x95,
+ 0x02, 0x06, 0x92, 0x62, 0x34, 0xc1, 0xf6, 0x33 },
+ .valid = true
+ },
+ /* wycheproof - public key >= p */
+ {
+ .private = { 0x78, 0xd3, 0x1d, 0xfa, 0x85, 0x44, 0x97, 0xd7,
+ 0x2d, 0x8d, 0xef, 0x8a, 0x1b, 0x7f, 0xb0, 0x06,
+ 0xce, 0xc2, 0xd8, 0xc4, 0x92, 0x46, 0x47, 0xc9,
+ 0x38, 0x14, 0xae, 0x56, 0xfa, 0xed, 0xa4, 0x95 },
+ .public = { 0xf1, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
+ .result = { 0x78, 0x6c, 0xd5, 0x49, 0x96, 0xf0, 0x14, 0xa5,
+ 0xa0, 0x31, 0xec, 0x14, 0xdb, 0x81, 0x2e, 0xd0,
+ 0x83, 0x55, 0x06, 0x1f, 0xdb, 0x5d, 0xe6, 0x80,
+ 0xa8, 0x00, 0xac, 0x52, 0x1f, 0x31, 0x8e, 0x23 },
+ .valid = true
+ },
+ /* wycheproof - public key >= p */
+ {
+ .private = { 0xc0, 0x4c, 0x5b, 0xae, 0xfa, 0x83, 0x02, 0xdd,
+ 0xde, 0xd6, 0xa4, 0xbb, 0x95, 0x77, 0x61, 0xb4,
+ 0xeb, 0x97, 0xae, 0xfa, 0x4f, 0xc3, 0xb8, 0x04,
+ 0x30, 0x85, 0xf9, 0x6a, 0x56, 0x59, 0xb3, 0xa5 },
+ .public = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
+ .result = { 0x29, 0xae, 0x8b, 0xc7, 0x3e, 0x9b, 0x10, 0xa0,
+ 0x8b, 0x4f, 0x68, 0x1c, 0x43, 0xc3, 0xe0, 0xac,
+ 0x1a, 0x17, 0x1d, 0x31, 0xb3, 0x8f, 0x1a, 0x48,
+ 0xef, 0xba, 0x29, 0xae, 0x63, 0x9e, 0xa1, 0x34 },
+ .valid = true
+ },
+ /* wycheproof - RFC 7748 */
+ {
+ .private = { 0xa0, 0x46, 0xe3, 0x6b, 0xf0, 0x52, 0x7c, 0x9d,
+ 0x3b, 0x16, 0x15, 0x4b, 0x82, 0x46, 0x5e, 0xdd,
+ 0x62, 0x14, 0x4c, 0x0a, 0xc1, 0xfc, 0x5a, 0x18,
+ 0x50, 0x6a, 0x22, 0x44, 0xba, 0x44, 0x9a, 0x44 },
+ .public = { 0xe6, 0xdb, 0x68, 0x67, 0x58, 0x30, 0x30, 0xdb,
+ 0x35, 0x94, 0xc1, 0xa4, 0x24, 0xb1, 0x5f, 0x7c,
+ 0x72, 0x66, 0x24, 0xec, 0x26, 0xb3, 0x35, 0x3b,
+ 0x10, 0xa9, 0x03, 0xa6, 0xd0, 0xab, 0x1c, 0x4c },
+ .result = { 0xc3, 0xda, 0x55, 0x37, 0x9d, 0xe9, 0xc6, 0x90,
+ 0x8e, 0x94, 0xea, 0x4d, 0xf2, 0x8d, 0x08, 0x4f,
+ 0x32, 0xec, 0xcf, 0x03, 0x49, 0x1c, 0x71, 0xf7,
+ 0x54, 0xb4, 0x07, 0x55, 0x77, 0xa2, 0x85, 0x52 },
+ .valid = true
+ },
+ /* wycheproof - RFC 7748 */
+ {
+ .private = { 0x48, 0x66, 0xe9, 0xd4, 0xd1, 0xb4, 0x67, 0x3c,
+ 0x5a, 0xd2, 0x26, 0x91, 0x95, 0x7d, 0x6a, 0xf5,
+ 0xc1, 0x1b, 0x64, 0x21, 0xe0, 0xea, 0x01, 0xd4,
+ 0x2c, 0xa4, 0x16, 0x9e, 0x79, 0x18, 0xba, 0x4d },
+ .public = { 0xe5, 0x21, 0x0f, 0x12, 0x78, 0x68, 0x11, 0xd3,
+ 0xf4, 0xb7, 0x95, 0x9d, 0x05, 0x38, 0xae, 0x2c,
+ 0x31, 0xdb, 0xe7, 0x10, 0x6f, 0xc0, 0x3c, 0x3e,
+ 0xfc, 0x4c, 0xd5, 0x49, 0xc7, 0x15, 0xa4, 0x13 },
+ .result = { 0x95, 0xcb, 0xde, 0x94, 0x76, 0xe8, 0x90, 0x7d,
+ 0x7a, 0xad, 0xe4, 0x5c, 0xb4, 0xb8, 0x73, 0xf8,
+ 0x8b, 0x59, 0x5a, 0x68, 0x79, 0x9f, 0xa1, 0x52,
+ 0xe6, 0xf8, 0xf7, 0x64, 0x7a, 0xac, 0x79, 0x57 },
+ .valid = true
+ },
+ /* wycheproof - edge case for shared secret */
+ {
+ .private = { 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
+ 0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
+ 0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
+ 0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
+ .public = { 0x0a, 0xb4, 0xe7, 0x63, 0x80, 0xd8, 0x4d, 0xde,
+ 0x4f, 0x68, 0x33, 0xc5, 0x8f, 0x2a, 0x9f, 0xb8,
+ 0xf8, 0x3b, 0xb0, 0x16, 0x9b, 0x17, 0x2b, 0xe4,
+ 0xb6, 0xe0, 0x59, 0x28, 0x87, 0x74, 0x1a, 0x36 },
+ .result = { 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .valid = true
+ },
+ /* wycheproof - edge case for shared secret */
+ {
+ .private = { 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
+ 0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
+ 0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
+ 0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
+ .public = { 0x89, 0xe1, 0x0d, 0x57, 0x01, 0xb4, 0x33, 0x7d,
+ 0x2d, 0x03, 0x21, 0x81, 0x53, 0x8b, 0x10, 0x64,
+ 0xbd, 0x40, 0x84, 0x40, 0x1c, 0xec, 0xa1, 0xfd,
+ 0x12, 0x66, 0x3a, 0x19, 0x59, 0x38, 0x80, 0x00 },
+ .result = { 0x09, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .valid = true
+ },
+ /* wycheproof - edge case for shared secret */
+ {
+ .private = { 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
+ 0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
+ 0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
+ 0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
+ .public = { 0x2b, 0x55, 0xd3, 0xaa, 0x4a, 0x8f, 0x80, 0xc8,
+ 0xc0, 0xb2, 0xae, 0x5f, 0x93, 0x3e, 0x85, 0xaf,
+ 0x49, 0xbe, 0xac, 0x36, 0xc2, 0xfa, 0x73, 0x94,
+ 0xba, 0xb7, 0x6c, 0x89, 0x33, 0xf8, 0xf8, 0x1d },
+ .result = { 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ .valid = true
+ },
+ /* wycheproof - edge case for shared secret */
+ {
+ .private = { 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
+ 0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
+ 0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
+ 0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
+ .public = { 0x63, 0xe5, 0xb1, 0xfe, 0x96, 0x01, 0xfe, 0x84,
+ 0x38, 0x5d, 0x88, 0x66, 0xb0, 0x42, 0x12, 0x62,
+ 0xf7, 0x8f, 0xbf, 0xa5, 0xaf, 0xf9, 0x58, 0x5e,
+ 0x62, 0x66, 0x79, 0xb1, 0x85, 0x47, 0xd9, 0x59 },
+ .result = { 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x3f },
+ .valid = true
+ },
+ /* wycheproof - edge case for shared secret */
+ {
+ .private = { 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
+ 0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
+ 0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
+ 0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
+ .public = { 0xe4, 0x28, 0xf3, 0xda, 0xc1, 0x78, 0x09, 0xf8,
+ 0x27, 0xa5, 0x22, 0xce, 0x32, 0x35, 0x50, 0x58,
+ 0xd0, 0x73, 0x69, 0x36, 0x4a, 0xa7, 0x89, 0x02,
+ 0xee, 0x10, 0x13, 0x9b, 0x9f, 0x9d, 0xd6, 0x53 },
+ .result = { 0xfc, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x3f },
+ .valid = true
+ },
+ /* wycheproof - edge case for shared secret */
+ {
+ .private = { 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
+ 0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
+ 0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
+ 0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
+ .public = { 0xb3, 0xb5, 0x0e, 0x3e, 0xd3, 0xa4, 0x07, 0xb9,
+ 0x5d, 0xe9, 0x42, 0xef, 0x74, 0x57, 0x5b, 0x5a,
+ 0xb8, 0xa1, 0x0c, 0x09, 0xee, 0x10, 0x35, 0x44,
+ 0xd6, 0x0b, 0xdf, 0xed, 0x81, 0x38, 0xab, 0x2b },
+ .result = { 0xf9, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x3f },
+ .valid = true
+ },
+ /* wycheproof - edge case for shared secret */
+ {
+ .private = { 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
+ 0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
+ 0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
+ 0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
+ .public = { 0x21, 0x3f, 0xff, 0xe9, 0x3d, 0x5e, 0xa8, 0xcd,
+ 0x24, 0x2e, 0x46, 0x28, 0x44, 0x02, 0x99, 0x22,
+ 0xc4, 0x3c, 0x77, 0xc9, 0xe3, 0xe4, 0x2f, 0x56,
+ 0x2f, 0x48, 0x5d, 0x24, 0xc5, 0x01, 0xa2, 0x0b },
+ .result = { 0xf3, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x3f },
+ .valid = true
+ },
+ /* wycheproof - edge case for shared secret */
+ {
+ .private = { 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
+ 0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
+ 0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
+ 0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
+ .public = { 0x91, 0xb2, 0x32, 0xa1, 0x78, 0xb3, 0xcd, 0x53,
+ 0x09, 0x32, 0x44, 0x1e, 0x61, 0x39, 0x41, 0x8f,
+ 0x72, 0x17, 0x22, 0x92, 0xf1, 0xda, 0x4c, 0x18,
+ 0x34, 0xfc, 0x5e, 0xbf, 0xef, 0xb5, 0x1e, 0x3f },
+ .result = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x03 },
+ .valid = true
+ },
+ /* wycheproof - edge case for shared secret */
+ {
+ .private = { 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
+ 0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
+ 0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
+ 0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
+ .public = { 0x04, 0x5c, 0x6e, 0x11, 0xc5, 0xd3, 0x32, 0x55,
+ 0x6c, 0x78, 0x22, 0xfe, 0x94, 0xeb, 0xf8, 0x9b,
+ 0x56, 0xa3, 0x87, 0x8d, 0xc2, 0x7c, 0xa0, 0x79,
+ 0x10, 0x30, 0x58, 0x84, 0x9f, 0xab, 0xcb, 0x4f },
+ .result = { 0xe5, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
+ .valid = true
+ },
+ /* wycheproof - edge case for shared secret */
+ {
+ .private = { 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
+ 0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
+ 0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
+ 0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
+ .public = { 0x1c, 0xa2, 0x19, 0x0b, 0x71, 0x16, 0x35, 0x39,
+ 0x06, 0x3c, 0x35, 0x77, 0x3b, 0xda, 0x0c, 0x9c,
+ 0x92, 0x8e, 0x91, 0x36, 0xf0, 0x62, 0x0a, 0xeb,
+ 0x09, 0x3f, 0x09, 0x91, 0x97, 0xb7, 0xf7, 0x4e },
+ .result = { 0xe3, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
+ .valid = true
+ },
+ /* wycheproof - edge case for shared secret */
+ {
+ .private = { 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
+ 0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
+ 0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
+ 0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
+ .public = { 0xf7, 0x6e, 0x90, 0x10, 0xac, 0x33, 0xc5, 0x04,
+ 0x3b, 0x2d, 0x3b, 0x76, 0xa8, 0x42, 0x17, 0x10,
+ 0x00, 0xc4, 0x91, 0x62, 0x22, 0xe9, 0xe8, 0x58,
+ 0x97, 0xa0, 0xae, 0xc7, 0xf6, 0x35, 0x0b, 0x3c },
+ .result = { 0xdd, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
+ .valid = true
+ },
+ /* wycheproof - edge case for shared secret */
+ {
+ .private = { 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
+ 0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
+ 0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
+ 0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
+ .public = { 0xbb, 0x72, 0x68, 0x8d, 0x8f, 0x8a, 0xa7, 0xa3,
+ 0x9c, 0xd6, 0x06, 0x0c, 0xd5, 0xc8, 0x09, 0x3c,
+ 0xde, 0xc6, 0xfe, 0x34, 0x19, 0x37, 0xc3, 0x88,
+ 0x6a, 0x99, 0x34, 0x6c, 0xd0, 0x7f, 0xaa, 0x55 },
+ .result = { 0xdb, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
+ .valid = true
+ },
+ /* wycheproof - edge case for shared secret */
+ {
+ .private = { 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
+ 0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
+ 0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
+ 0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
+ .public = { 0x88, 0xfd, 0xde, 0xa1, 0x93, 0x39, 0x1c, 0x6a,
+ 0x59, 0x33, 0xef, 0x9b, 0x71, 0x90, 0x15, 0x49,
+ 0x44, 0x72, 0x05, 0xaa, 0xe9, 0xda, 0x92, 0x8a,
+ 0x6b, 0x91, 0xa3, 0x52, 0xba, 0x10, 0xf4, 0x1f },
+ .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 },
+ .valid = true
+ },
+ /* wycheproof - edge case for shared secret */
+ {
+ .private = { 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
+ 0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
+ 0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
+ 0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
+ .public = { 0x30, 0x3b, 0x39, 0x2f, 0x15, 0x31, 0x16, 0xca,
+ 0xd9, 0xcc, 0x68, 0x2a, 0x00, 0xcc, 0xc4, 0x4c,
+ 0x95, 0xff, 0x0d, 0x3b, 0xbe, 0x56, 0x8b, 0xeb,
+ 0x6c, 0x4e, 0x73, 0x9b, 0xaf, 0xdc, 0x2c, 0x68 },
+ .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00 },
+ .valid = true
+ },
+ /* wycheproof - checking for overflow */
+ {
+ .private = { 0xc8, 0x17, 0x24, 0x70, 0x40, 0x00, 0xb2, 0x6d,
+ 0x31, 0x70, 0x3c, 0xc9, 0x7e, 0x3a, 0x37, 0x8d,
+ 0x56, 0xfa, 0xd8, 0x21, 0x93, 0x61, 0xc8, 0x8c,
+ 0xca, 0x8b, 0xd7, 0xc5, 0x71, 0x9b, 0x12, 0xb2 },
+ .public = { 0xfd, 0x30, 0x0a, 0xeb, 0x40, 0xe1, 0xfa, 0x58,
+ 0x25, 0x18, 0x41, 0x2b, 0x49, 0xb2, 0x08, 0xa7,
+ 0x84, 0x2b, 0x1e, 0x1f, 0x05, 0x6a, 0x04, 0x01,
+ 0x78, 0xea, 0x41, 0x41, 0x53, 0x4f, 0x65, 0x2d },
+ .result = { 0xb7, 0x34, 0x10, 0x5d, 0xc2, 0x57, 0x58, 0x5d,
+ 0x73, 0xb5, 0x66, 0xcc, 0xb7, 0x6f, 0x06, 0x27,
+ 0x95, 0xcc, 0xbe, 0xc8, 0x91, 0x28, 0xe5, 0x2b,
+ 0x02, 0xf3, 0xe5, 0x96, 0x39, 0xf1, 0x3c, 0x46 },
+ .valid = true
+ },
+ /* wycheproof - checking for overflow */
+ {
+ .private = { 0xc8, 0x17, 0x24, 0x70, 0x40, 0x00, 0xb2, 0x6d,
+ 0x31, 0x70, 0x3c, 0xc9, 0x7e, 0x3a, 0x37, 0x8d,
+ 0x56, 0xfa, 0xd8, 0x21, 0x93, 0x61, 0xc8, 0x8c,
+ 0xca, 0x8b, 0xd7, 0xc5, 0x71, 0x9b, 0x12, 0xb2 },
+ .public = { 0xc8, 0xef, 0x79, 0xb5, 0x14, 0xd7, 0x68, 0x26,
+ 0x77, 0xbc, 0x79, 0x31, 0xe0, 0x6e, 0xe5, 0xc2,
+ 0x7c, 0x9b, 0x39, 0x2b, 0x4a, 0xe9, 0x48, 0x44,
+ 0x73, 0xf5, 0x54, 0xe6, 0x67, 0x8e, 0xcc, 0x2e },
+ .result = { 0x64, 0x7a, 0x46, 0xb6, 0xfc, 0x3f, 0x40, 0xd6,
+ 0x21, 0x41, 0xee, 0x3c, 0xee, 0x70, 0x6b, 0x4d,
+ 0x7a, 0x92, 0x71, 0x59, 0x3a, 0x7b, 0x14, 0x3e,
+ 0x8e, 0x2e, 0x22, 0x79, 0x88, 0x3e, 0x45, 0x50 },
+ .valid = true
+ },
+ /* wycheproof - checking for overflow */
+ {
+ .private = { 0xc8, 0x17, 0x24, 0x70, 0x40, 0x00, 0xb2, 0x6d,
+ 0x31, 0x70, 0x3c, 0xc9, 0x7e, 0x3a, 0x37, 0x8d,
+ 0x56, 0xfa, 0xd8, 0x21, 0x93, 0x61, 0xc8, 0x8c,
+ 0xca, 0x8b, 0xd7, 0xc5, 0x71, 0x9b, 0x12, 0xb2 },
+ .public = { 0x64, 0xae, 0xac, 0x25, 0x04, 0x14, 0x48, 0x61,
+ 0x53, 0x2b, 0x7b, 0xbc, 0xb6, 0xc8, 0x7d, 0x67,
+ 0xdd, 0x4c, 0x1f, 0x07, 0xeb, 0xc2, 0xe0, 0x6e,
+ 0xff, 0xb9, 0x5a, 0xec, 0xc6, 0x17, 0x0b, 0x2c },
+ .result = { 0x4f, 0xf0, 0x3d, 0x5f, 0xb4, 0x3c, 0xd8, 0x65,
+ 0x7a, 0x3c, 0xf3, 0x7c, 0x13, 0x8c, 0xad, 0xce,
+ 0xcc, 0xe5, 0x09, 0xe4, 0xeb, 0xa0, 0x89, 0xd0,
+ 0xef, 0x40, 0xb4, 0xe4, 0xfb, 0x94, 0x61, 0x55 },
+ .valid = true
+ },
+ /* wycheproof - checking for overflow */
+ {
+ .private = { 0xc8, 0x17, 0x24, 0x70, 0x40, 0x00, 0xb2, 0x6d,
+ 0x31, 0x70, 0x3c, 0xc9, 0x7e, 0x3a, 0x37, 0x8d,
+ 0x56, 0xfa, 0xd8, 0x21, 0x93, 0x61, 0xc8, 0x8c,
+ 0xca, 0x8b, 0xd7, 0xc5, 0x71, 0x9b, 0x12, 0xb2 },
+ .public = { 0xbf, 0x68, 0xe3, 0x5e, 0x9b, 0xdb, 0x7e, 0xee,
+ 0x1b, 0x50, 0x57, 0x02, 0x21, 0x86, 0x0f, 0x5d,
+ 0xcd, 0xad, 0x8a, 0xcb, 0xab, 0x03, 0x1b, 0x14,
+ 0x97, 0x4c, 0xc4, 0x90, 0x13, 0xc4, 0x98, 0x31 },
+ .result = { 0x21, 0xce, 0xe5, 0x2e, 0xfd, 0xbc, 0x81, 0x2e,
+ 0x1d, 0x02, 0x1a, 0x4a, 0xf1, 0xe1, 0xd8, 0xbc,
+ 0x4d, 0xb3, 0xc4, 0x00, 0xe4, 0xd2, 0xa2, 0xc5,
+ 0x6a, 0x39, 0x26, 0xdb, 0x4d, 0x99, 0xc6, 0x5b },
+ .valid = true
+ },
+ /* wycheproof - checking for overflow */
+ {
+ .private = { 0xc8, 0x17, 0x24, 0x70, 0x40, 0x00, 0xb2, 0x6d,
+ 0x31, 0x70, 0x3c, 0xc9, 0x7e, 0x3a, 0x37, 0x8d,
+ 0x56, 0xfa, 0xd8, 0x21, 0x93, 0x61, 0xc8, 0x8c,
+ 0xca, 0x8b, 0xd7, 0xc5, 0x71, 0x9b, 0x12, 0xb2 },
+ .public = { 0x53, 0x47, 0xc4, 0x91, 0x33, 0x1a, 0x64, 0xb4,
+ 0x3d, 0xdc, 0x68, 0x30, 0x34, 0xe6, 0x77, 0xf5,
+ 0x3d, 0xc3, 0x2b, 0x52, 0xa5, 0x2a, 0x57, 0x7c,
+ 0x15, 0xa8, 0x3b, 0xf2, 0x98, 0xe9, 0x9f, 0x19 },
+ .result = { 0x18, 0xcb, 0x89, 0xe4, 0xe2, 0x0c, 0x0c, 0x2b,
+ 0xd3, 0x24, 0x30, 0x52, 0x45, 0x26, 0x6c, 0x93,
+ 0x27, 0x69, 0x0b, 0xbe, 0x79, 0xac, 0xb8, 0x8f,
+ 0x5b, 0x8f, 0xb3, 0xf7, 0x4e, 0xca, 0x3e, 0x52 },
+ .valid = true
+ },
+ /* wycheproof - private key == -1 (mod order) */
+ {
+ .private = { 0xa0, 0x23, 0xcd, 0xd0, 0x83, 0xef, 0x5b, 0xb8,
+ 0x2f, 0x10, 0xd6, 0x2e, 0x59, 0xe1, 0x5a, 0x68,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50 },
+ .public = { 0x25, 0x8e, 0x04, 0x52, 0x3b, 0x8d, 0x25, 0x3e,
+ 0xe6, 0x57, 0x19, 0xfc, 0x69, 0x06, 0xc6, 0x57,
+ 0x19, 0x2d, 0x80, 0x71, 0x7e, 0xdc, 0x82, 0x8f,
+ 0xa0, 0xaf, 0x21, 0x68, 0x6e, 0x2f, 0xaa, 0x75 },
+ .result = { 0x25, 0x8e, 0x04, 0x52, 0x3b, 0x8d, 0x25, 0x3e,
+ 0xe6, 0x57, 0x19, 0xfc, 0x69, 0x06, 0xc6, 0x57,
+ 0x19, 0x2d, 0x80, 0x71, 0x7e, 0xdc, 0x82, 0x8f,
+ 0xa0, 0xaf, 0x21, 0x68, 0x6e, 0x2f, 0xaa, 0x75 },
+ .valid = true
+ },
+ /* wycheproof - private key == 1 (mod order) on twist */
+ {
+ .private = { 0x58, 0x08, 0x3d, 0xd2, 0x61, 0xad, 0x91, 0xef,
+ 0xf9, 0x52, 0x32, 0x2e, 0xc8, 0x24, 0xc6, 0x82,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x5f },
+ .public = { 0x2e, 0xae, 0x5e, 0xc3, 0xdd, 0x49, 0x4e, 0x9f,
+ 0x2d, 0x37, 0xd2, 0x58, 0xf8, 0x73, 0xa8, 0xe6,
+ 0xe9, 0xd0, 0xdb, 0xd1, 0xe3, 0x83, 0xef, 0x64,
+ 0xd9, 0x8b, 0xb9, 0x1b, 0x3e, 0x0b, 0xe0, 0x35 },
+ .result = { 0x2e, 0xae, 0x5e, 0xc3, 0xdd, 0x49, 0x4e, 0x9f,
+ 0x2d, 0x37, 0xd2, 0x58, 0xf8, 0x73, 0xa8, 0xe6,
+ 0xe9, 0xd0, 0xdb, 0xd1, 0xe3, 0x83, 0xef, 0x64,
+ 0xd9, 0x8b, 0xb9, 0x1b, 0x3e, 0x0b, 0xe0, 0x35 },
+ .valid = true
+ }
+};
+
+bool __init curve25519_selftest(void)
+{
+ bool success = true, ret, ret2;
+ size_t i = 0, j;
+ u8 in[CURVE25519_KEY_SIZE];
+ u8 out[CURVE25519_KEY_SIZE], out2[CURVE25519_KEY_SIZE],
+ out3[CURVE25519_KEY_SIZE];
+
+ for (i = 0; i < ARRAY_SIZE(curve25519_test_vectors); ++i) {
+ memset(out, 0, CURVE25519_KEY_SIZE);
+ ret = curve25519(out, curve25519_test_vectors[i].private,
+ curve25519_test_vectors[i].public);
+ if (ret != curve25519_test_vectors[i].valid ||
+ memcmp(out, curve25519_test_vectors[i].result,
+ CURVE25519_KEY_SIZE)) {
+ pr_err("curve25519 self-test %zu: FAIL\n", i + 1);
+ success = false;
+ }
+ }
+
+ for (i = 0; i < 5; ++i) {
+ get_random_bytes(in, sizeof(in));
+ ret = curve25519_generate_public(out, in);
+ ret2 = curve25519(out2, in, (u8[CURVE25519_KEY_SIZE]){ 9 });
+ curve25519_generic(out3, in, (u8[CURVE25519_KEY_SIZE]){ 9 });
+ if (ret != ret2 ||
+ memcmp(out, out2, CURVE25519_KEY_SIZE) ||
+ memcmp(out, out3, CURVE25519_KEY_SIZE)) {
+ pr_err("curve25519 basepoint self-test %zu: FAIL: input - 0x",
+ i + 1);
+ for (j = CURVE25519_KEY_SIZE; j-- > 0;)
+ printk(KERN_CONT "%02x", in[j]);
+ printk(KERN_CONT "\n");
+ success = false;
+ }
+ }
+
+ return success;
+}
diff --git a/lib/crypto/curve25519.c b/lib/crypto/curve25519.c
new file mode 100644
index 0000000..288a62c
--- /dev/null
+++ b/lib/crypto/curve25519.c
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ *
+ * This is an implementation of the Curve25519 ECDH algorithm, using either
+ * a 32-bit implementation or a 64-bit implementation with 128-bit integers,
+ * depending on what is supported by the target compiler.
+ *
+ * Information: https://cr.yp.to/ecdh.html
+ */
+
+#include <crypto/curve25519.h>
+#include <linux/module.h>
+#include <linux/init.h>
+
+bool curve25519_selftest(void);
+
+static int __init mod_init(void)
+{
+ if (!IS_ENABLED(CONFIG_CRYPTO_MANAGER_DISABLE_TESTS) &&
+ WARN_ON(!curve25519_selftest()))
+ return -ENODEV;
+ return 0;
+}
+
+static void __exit mod_exit(void)
+{
+}
+
+module_init(mod_init);
+module_exit(mod_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Curve25519 scalar multiplication");
+MODULE_AUTHOR("Jason A. Donenfeld <Jason@zx2c4.com>");
diff --git a/lib/crypto/libchacha.c b/lib/crypto/libchacha.c
new file mode 100644
index 0000000..dabc3ac
--- /dev/null
+++ b/lib/crypto/libchacha.c
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * The ChaCha stream cipher (RFC7539)
+ *
+ * Copyright (C) 2015 Martin Willi
+ */
+
+#include <linux/kernel.h>
+#include <linux/export.h>
+#include <linux/module.h>
+
+#include <crypto/algapi.h> // for crypto_xor_cpy
+#include <crypto/chacha.h>
+
+void chacha_crypt_generic(u32 *state, u8 *dst, const u8 *src,
+ unsigned int bytes, int nrounds)
+{
+ /* aligned to potentially speed up crypto_xor() */
+ u8 stream[CHACHA_BLOCK_SIZE] __aligned(sizeof(long));
+
+ while (bytes >= CHACHA_BLOCK_SIZE) {
+ chacha_block_generic(state, stream, nrounds);
+ crypto_xor_cpy(dst, src, stream, CHACHA_BLOCK_SIZE);
+ bytes -= CHACHA_BLOCK_SIZE;
+ dst += CHACHA_BLOCK_SIZE;
+ src += CHACHA_BLOCK_SIZE;
+ }
+ if (bytes) {
+ chacha_block_generic(state, stream, nrounds);
+ crypto_xor_cpy(dst, src, stream, bytes);
+ }
+}
+EXPORT_SYMBOL(chacha_crypt_generic);
+
+MODULE_LICENSE("GPL");
diff --git a/lib/crypto/poly1305-donna32.c b/lib/crypto/poly1305-donna32.c
new file mode 100644
index 0000000..3cc77d9
--- /dev/null
+++ b/lib/crypto/poly1305-donna32.c
@@ -0,0 +1,204 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ *
+ * This is based in part on Andrew Moon's poly1305-donna, which is in the
+ * public domain.
+ */
+
+#include <linux/kernel.h>
+#include <asm/unaligned.h>
+#include <crypto/internal/poly1305.h>
+
+void poly1305_core_setkey(struct poly1305_core_key *key, const u8 raw_key[16])
+{
+ /* r &= 0xffffffc0ffffffc0ffffffc0fffffff */
+ key->key.r[0] = (get_unaligned_le32(&raw_key[0])) & 0x3ffffff;
+ key->key.r[1] = (get_unaligned_le32(&raw_key[3]) >> 2) & 0x3ffff03;
+ key->key.r[2] = (get_unaligned_le32(&raw_key[6]) >> 4) & 0x3ffc0ff;
+ key->key.r[3] = (get_unaligned_le32(&raw_key[9]) >> 6) & 0x3f03fff;
+ key->key.r[4] = (get_unaligned_le32(&raw_key[12]) >> 8) & 0x00fffff;
+
+ /* s = 5*r */
+ key->precomputed_s.r[0] = key->key.r[1] * 5;
+ key->precomputed_s.r[1] = key->key.r[2] * 5;
+ key->precomputed_s.r[2] = key->key.r[3] * 5;
+ key->precomputed_s.r[3] = key->key.r[4] * 5;
+}
+EXPORT_SYMBOL(poly1305_core_setkey);
+
+void poly1305_core_blocks(struct poly1305_state *state,
+ const struct poly1305_core_key *key, const void *src,
+ unsigned int nblocks, u32 hibit)
+{
+ const u8 *input = src;
+ u32 r0, r1, r2, r3, r4;
+ u32 s1, s2, s3, s4;
+ u32 h0, h1, h2, h3, h4;
+ u64 d0, d1, d2, d3, d4;
+ u32 c;
+
+ if (!nblocks)
+ return;
+
+ hibit <<= 24;
+
+ r0 = key->key.r[0];
+ r1 = key->key.r[1];
+ r2 = key->key.r[2];
+ r3 = key->key.r[3];
+ r4 = key->key.r[4];
+
+ s1 = key->precomputed_s.r[0];
+ s2 = key->precomputed_s.r[1];
+ s3 = key->precomputed_s.r[2];
+ s4 = key->precomputed_s.r[3];
+
+ h0 = state->h[0];
+ h1 = state->h[1];
+ h2 = state->h[2];
+ h3 = state->h[3];
+ h4 = state->h[4];
+
+ do {
+ /* h += m[i] */
+ h0 += (get_unaligned_le32(&input[0])) & 0x3ffffff;
+ h1 += (get_unaligned_le32(&input[3]) >> 2) & 0x3ffffff;
+ h2 += (get_unaligned_le32(&input[6]) >> 4) & 0x3ffffff;
+ h3 += (get_unaligned_le32(&input[9]) >> 6) & 0x3ffffff;
+ h4 += (get_unaligned_le32(&input[12]) >> 8) | hibit;
+
+ /* h *= r */
+ d0 = ((u64)h0 * r0) + ((u64)h1 * s4) +
+ ((u64)h2 * s3) + ((u64)h3 * s2) +
+ ((u64)h4 * s1);
+ d1 = ((u64)h0 * r1) + ((u64)h1 * r0) +
+ ((u64)h2 * s4) + ((u64)h3 * s3) +
+ ((u64)h4 * s2);
+ d2 = ((u64)h0 * r2) + ((u64)h1 * r1) +
+ ((u64)h2 * r0) + ((u64)h3 * s4) +
+ ((u64)h4 * s3);
+ d3 = ((u64)h0 * r3) + ((u64)h1 * r2) +
+ ((u64)h2 * r1) + ((u64)h3 * r0) +
+ ((u64)h4 * s4);
+ d4 = ((u64)h0 * r4) + ((u64)h1 * r3) +
+ ((u64)h2 * r2) + ((u64)h3 * r1) +
+ ((u64)h4 * r0);
+
+ /* (partial) h %= p */
+ c = (u32)(d0 >> 26);
+ h0 = (u32)d0 & 0x3ffffff;
+ d1 += c;
+ c = (u32)(d1 >> 26);
+ h1 = (u32)d1 & 0x3ffffff;
+ d2 += c;
+ c = (u32)(d2 >> 26);
+ h2 = (u32)d2 & 0x3ffffff;
+ d3 += c;
+ c = (u32)(d3 >> 26);
+ h3 = (u32)d3 & 0x3ffffff;
+ d4 += c;
+ c = (u32)(d4 >> 26);
+ h4 = (u32)d4 & 0x3ffffff;
+ h0 += c * 5;
+ c = (h0 >> 26);
+ h0 = h0 & 0x3ffffff;
+ h1 += c;
+
+ input += POLY1305_BLOCK_SIZE;
+ } while (--nblocks);
+
+ state->h[0] = h0;
+ state->h[1] = h1;
+ state->h[2] = h2;
+ state->h[3] = h3;
+ state->h[4] = h4;
+}
+EXPORT_SYMBOL(poly1305_core_blocks);
+
+void poly1305_core_emit(const struct poly1305_state *state, const u32 nonce[4],
+ void *dst)
+{
+ u8 *mac = dst;
+ u32 h0, h1, h2, h3, h4, c;
+ u32 g0, g1, g2, g3, g4;
+ u64 f;
+ u32 mask;
+
+ /* fully carry h */
+ h0 = state->h[0];
+ h1 = state->h[1];
+ h2 = state->h[2];
+ h3 = state->h[3];
+ h4 = state->h[4];
+
+ c = h1 >> 26;
+ h1 = h1 & 0x3ffffff;
+ h2 += c;
+ c = h2 >> 26;
+ h2 = h2 & 0x3ffffff;
+ h3 += c;
+ c = h3 >> 26;
+ h3 = h3 & 0x3ffffff;
+ h4 += c;
+ c = h4 >> 26;
+ h4 = h4 & 0x3ffffff;
+ h0 += c * 5;
+ c = h0 >> 26;
+ h0 = h0 & 0x3ffffff;
+ h1 += c;
+
+ /* compute h + -p */
+ g0 = h0 + 5;
+ c = g0 >> 26;
+ g0 &= 0x3ffffff;
+ g1 = h1 + c;
+ c = g1 >> 26;
+ g1 &= 0x3ffffff;
+ g2 = h2 + c;
+ c = g2 >> 26;
+ g2 &= 0x3ffffff;
+ g3 = h3 + c;
+ c = g3 >> 26;
+ g3 &= 0x3ffffff;
+ g4 = h4 + c - (1UL << 26);
+
+ /* select h if h < p, or h + -p if h >= p */
+ mask = (g4 >> ((sizeof(u32) * 8) - 1)) - 1;
+ g0 &= mask;
+ g1 &= mask;
+ g2 &= mask;
+ g3 &= mask;
+ g4 &= mask;
+ mask = ~mask;
+
+ h0 = (h0 & mask) | g0;
+ h1 = (h1 & mask) | g1;
+ h2 = (h2 & mask) | g2;
+ h3 = (h3 & mask) | g3;
+ h4 = (h4 & mask) | g4;
+
+ /* h = h % (2^128) */
+ h0 = ((h0) | (h1 << 26)) & 0xffffffff;
+ h1 = ((h1 >> 6) | (h2 << 20)) & 0xffffffff;
+ h2 = ((h2 >> 12) | (h3 << 14)) & 0xffffffff;
+ h3 = ((h3 >> 18) | (h4 << 8)) & 0xffffffff;
+
+ if (likely(nonce)) {
+ /* mac = (h + nonce) % (2^128) */
+ f = (u64)h0 + nonce[0];
+ h0 = (u32)f;
+ f = (u64)h1 + nonce[1] + (f >> 32);
+ h1 = (u32)f;
+ f = (u64)h2 + nonce[2] + (f >> 32);
+ h2 = (u32)f;
+ f = (u64)h3 + nonce[3] + (f >> 32);
+ h3 = (u32)f;
+ }
+
+ put_unaligned_le32(h0, &mac[0]);
+ put_unaligned_le32(h1, &mac[4]);
+ put_unaligned_le32(h2, &mac[8]);
+ put_unaligned_le32(h3, &mac[12]);
+}
+EXPORT_SYMBOL(poly1305_core_emit);
diff --git a/lib/crypto/poly1305-donna64.c b/lib/crypto/poly1305-donna64.c
new file mode 100644
index 0000000..6ae181b
--- /dev/null
+++ b/lib/crypto/poly1305-donna64.c
@@ -0,0 +1,185 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ *
+ * This is based in part on Andrew Moon's poly1305-donna, which is in the
+ * public domain.
+ */
+
+#include <linux/kernel.h>
+#include <asm/unaligned.h>
+#include <crypto/internal/poly1305.h>
+
+typedef __uint128_t u128;
+
+void poly1305_core_setkey(struct poly1305_core_key *key, const u8 raw_key[16])
+{
+ u64 t0, t1;
+
+ /* r &= 0xffffffc0ffffffc0ffffffc0fffffff */
+ t0 = get_unaligned_le64(&raw_key[0]);
+ t1 = get_unaligned_le64(&raw_key[8]);
+
+ key->key.r64[0] = t0 & 0xffc0fffffffULL;
+ key->key.r64[1] = ((t0 >> 44) | (t1 << 20)) & 0xfffffc0ffffULL;
+ key->key.r64[2] = ((t1 >> 24)) & 0x00ffffffc0fULL;
+
+ /* s = 20*r */
+ key->precomputed_s.r64[0] = key->key.r64[1] * 20;
+ key->precomputed_s.r64[1] = key->key.r64[2] * 20;
+}
+EXPORT_SYMBOL(poly1305_core_setkey);
+
+void poly1305_core_blocks(struct poly1305_state *state,
+ const struct poly1305_core_key *key, const void *src,
+ unsigned int nblocks, u32 hibit)
+{
+ const u8 *input = src;
+ u64 hibit64;
+ u64 r0, r1, r2;
+ u64 s1, s2;
+ u64 h0, h1, h2;
+ u64 c;
+ u128 d0, d1, d2, d;
+
+ if (!nblocks)
+ return;
+
+ hibit64 = ((u64)hibit) << 40;
+
+ r0 = key->key.r64[0];
+ r1 = key->key.r64[1];
+ r2 = key->key.r64[2];
+
+ h0 = state->h64[0];
+ h1 = state->h64[1];
+ h2 = state->h64[2];
+
+ s1 = key->precomputed_s.r64[0];
+ s2 = key->precomputed_s.r64[1];
+
+ do {
+ u64 t0, t1;
+
+ /* h += m[i] */
+ t0 = get_unaligned_le64(&input[0]);
+ t1 = get_unaligned_le64(&input[8]);
+
+ h0 += t0 & 0xfffffffffffULL;
+ h1 += ((t0 >> 44) | (t1 << 20)) & 0xfffffffffffULL;
+ h2 += (((t1 >> 24)) & 0x3ffffffffffULL) | hibit64;
+
+ /* h *= r */
+ d0 = (u128)h0 * r0;
+ d = (u128)h1 * s2;
+ d0 += d;
+ d = (u128)h2 * s1;
+ d0 += d;
+ d1 = (u128)h0 * r1;
+ d = (u128)h1 * r0;
+ d1 += d;
+ d = (u128)h2 * s2;
+ d1 += d;
+ d2 = (u128)h0 * r2;
+ d = (u128)h1 * r1;
+ d2 += d;
+ d = (u128)h2 * r0;
+ d2 += d;
+
+ /* (partial) h %= p */
+ c = (u64)(d0 >> 44);
+ h0 = (u64)d0 & 0xfffffffffffULL;
+ d1 += c;
+ c = (u64)(d1 >> 44);
+ h1 = (u64)d1 & 0xfffffffffffULL;
+ d2 += c;
+ c = (u64)(d2 >> 42);
+ h2 = (u64)d2 & 0x3ffffffffffULL;
+ h0 += c * 5;
+ c = h0 >> 44;
+ h0 = h0 & 0xfffffffffffULL;
+ h1 += c;
+
+ input += POLY1305_BLOCK_SIZE;
+ } while (--nblocks);
+
+ state->h64[0] = h0;
+ state->h64[1] = h1;
+ state->h64[2] = h2;
+}
+EXPORT_SYMBOL(poly1305_core_blocks);
+
+void poly1305_core_emit(const struct poly1305_state *state, const u32 nonce[4],
+ void *dst)
+{
+ u8 *mac = dst;
+ u64 h0, h1, h2, c;
+ u64 g0, g1, g2;
+ u64 t0, t1;
+
+ /* fully carry h */
+ h0 = state->h64[0];
+ h1 = state->h64[1];
+ h2 = state->h64[2];
+
+ c = h1 >> 44;
+ h1 &= 0xfffffffffffULL;
+ h2 += c;
+ c = h2 >> 42;
+ h2 &= 0x3ffffffffffULL;
+ h0 += c * 5;
+ c = h0 >> 44;
+ h0 &= 0xfffffffffffULL;
+ h1 += c;
+ c = h1 >> 44;
+ h1 &= 0xfffffffffffULL;
+ h2 += c;
+ c = h2 >> 42;
+ h2 &= 0x3ffffffffffULL;
+ h0 += c * 5;
+ c = h0 >> 44;
+ h0 &= 0xfffffffffffULL;
+ h1 += c;
+
+ /* compute h + -p */
+ g0 = h0 + 5;
+ c = g0 >> 44;
+ g0 &= 0xfffffffffffULL;
+ g1 = h1 + c;
+ c = g1 >> 44;
+ g1 &= 0xfffffffffffULL;
+ g2 = h2 + c - (1ULL << 42);
+
+ /* select h if h < p, or h + -p if h >= p */
+ c = (g2 >> ((sizeof(u64) * 8) - 1)) - 1;
+ g0 &= c;
+ g1 &= c;
+ g2 &= c;
+ c = ~c;
+ h0 = (h0 & c) | g0;
+ h1 = (h1 & c) | g1;
+ h2 = (h2 & c) | g2;
+
+ if (likely(nonce)) {
+ /* h = (h + nonce) */
+ t0 = ((u64)nonce[1] << 32) | nonce[0];
+ t1 = ((u64)nonce[3] << 32) | nonce[2];
+
+ h0 += t0 & 0xfffffffffffULL;
+ c = h0 >> 44;
+ h0 &= 0xfffffffffffULL;
+ h1 += (((t0 >> 44) | (t1 << 20)) & 0xfffffffffffULL) + c;
+ c = h1 >> 44;
+ h1 &= 0xfffffffffffULL;
+ h2 += (((t1 >> 24)) & 0x3ffffffffffULL) + c;
+ h2 &= 0x3ffffffffffULL;
+ }
+
+ /* mac = h % (2^128) */
+ h0 = h0 | (h1 << 44);
+ h1 = (h1 >> 20) | (h2 << 24);
+
+ put_unaligned_le64(h0, &mac[0]);
+ put_unaligned_le64(h1, &mac[8]);
+}
+EXPORT_SYMBOL(poly1305_core_emit);
diff --git a/lib/crypto/poly1305.c b/lib/crypto/poly1305.c
new file mode 100644
index 0000000..9d2d14d
--- /dev/null
+++ b/lib/crypto/poly1305.c
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Poly1305 authenticator algorithm, RFC7539
+ *
+ * Copyright (C) 2015 Martin Willi
+ *
+ * Based on public domain code by Andrew Moon and Daniel J. Bernstein.
+ */
+
+#include <crypto/internal/poly1305.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <asm/unaligned.h>
+
+void poly1305_init_generic(struct poly1305_desc_ctx *desc, const u8 *key)
+{
+ poly1305_core_setkey(&desc->core_r, key);
+ desc->s[0] = get_unaligned_le32(key + 16);
+ desc->s[1] = get_unaligned_le32(key + 20);
+ desc->s[2] = get_unaligned_le32(key + 24);
+ desc->s[3] = get_unaligned_le32(key + 28);
+ poly1305_core_init(&desc->h);
+ desc->buflen = 0;
+ desc->sset = true;
+ desc->rset = 2;
+}
+EXPORT_SYMBOL_GPL(poly1305_init_generic);
+
+void poly1305_update_generic(struct poly1305_desc_ctx *desc, const u8 *src,
+ unsigned int nbytes)
+{
+ unsigned int bytes;
+
+ if (unlikely(desc->buflen)) {
+ bytes = min(nbytes, POLY1305_BLOCK_SIZE - desc->buflen);
+ memcpy(desc->buf + desc->buflen, src, bytes);
+ src += bytes;
+ nbytes -= bytes;
+ desc->buflen += bytes;
+
+ if (desc->buflen == POLY1305_BLOCK_SIZE) {
+ poly1305_core_blocks(&desc->h, &desc->core_r, desc->buf,
+ 1, 1);
+ desc->buflen = 0;
+ }
+ }
+
+ if (likely(nbytes >= POLY1305_BLOCK_SIZE)) {
+ poly1305_core_blocks(&desc->h, &desc->core_r, src,
+ nbytes / POLY1305_BLOCK_SIZE, 1);
+ src += nbytes - (nbytes % POLY1305_BLOCK_SIZE);
+ nbytes %= POLY1305_BLOCK_SIZE;
+ }
+
+ if (unlikely(nbytes)) {
+ desc->buflen = nbytes;
+ memcpy(desc->buf, src, nbytes);
+ }
+}
+EXPORT_SYMBOL_GPL(poly1305_update_generic);
+
+void poly1305_final_generic(struct poly1305_desc_ctx *desc, u8 *dst)
+{
+ if (unlikely(desc->buflen)) {
+ desc->buf[desc->buflen++] = 1;
+ memset(desc->buf + desc->buflen, 0,
+ POLY1305_BLOCK_SIZE - desc->buflen);
+ poly1305_core_blocks(&desc->h, &desc->core_r, desc->buf, 1, 0);
+ }
+
+ poly1305_core_emit(&desc->h, desc->s, dst);
+ *desc = (struct poly1305_desc_ctx){};
+}
+EXPORT_SYMBOL_GPL(poly1305_final_generic);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Martin Willi <martin@strongswan.org>");
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index 9305ff4..7366a76 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -953,22 +953,26 @@ static void ddebug_remove_all_tables(void)
static __initdata int ddebug_init_success;
-static int __init dynamic_debug_init_debugfs(void)
+static int __init dynamic_debug_init_control(void)
{
- struct dentry *dir, *file;
+ struct proc_dir_entry *procfs_dir;
+ struct dentry *debugfs_dir;
if (!ddebug_init_success)
return -ENODEV;
- dir = debugfs_create_dir("dynamic_debug", NULL);
- if (!dir)
- return -ENOMEM;
- file = debugfs_create_file("control", 0644, dir, NULL,
- &ddebug_proc_fops);
- if (!file) {
- debugfs_remove(dir);
- return -ENOMEM;
+ /* Create the control file in debugfs if it is enabled */
+ if (debugfs_initialized()) {
+ debugfs_dir = debugfs_create_dir("dynamic_debug", NULL);
+ debugfs_create_file("control", 0644, debugfs_dir, NULL,
+ &ddebug_proc_fops);
}
+
+ /* Also create the control file in procfs */
+ procfs_dir = proc_mkdir("dynamic_debug", NULL);
+ if (procfs_dir)
+ proc_create("control", 0644, procfs_dir, &ddebug_proc_fops);
+
return 0;
}
@@ -1045,4 +1049,4 @@ static int __init dynamic_debug_init(void)
early_initcall(dynamic_debug_init);
/* Debugfs setup must be done later */
-fs_initcall(dynamic_debug_init_debugfs);
+fs_initcall(dynamic_debug_init_control);
diff --git a/lib/ioremap.c b/lib/ioremap.c
index 517f585..61ed878 100644
--- a/lib/ioremap.c
+++ b/lib/ioremap.c
@@ -181,3 +181,4 @@ int ioremap_page_range(unsigned long addr,
return err;
}
+EXPORT_SYMBOL_GPL(ioremap_page_range);
diff --git a/lib/plist.c b/lib/plist.c
index 199408f..b2660a48 100644
--- a/lib/plist.c
+++ b/lib/plist.c
@@ -103,6 +103,7 @@ void plist_add(struct plist_node *node, struct plist_head *head)
plist_check_head(head);
}
+EXPORT_SYMBOL_GPL(plist_add);
/**
* plist_del - Remove a @node from plist.
@@ -132,6 +133,7 @@ void plist_del(struct plist_node *node, struct plist_head *head)
plist_check_head(head);
}
+EXPORT_SYMBOL_GPL(plist_del);
/**
* plist_requeue - Requeue @node at end of same-prio entries.
diff --git a/lib/strncpy_from_user.c b/lib/strncpy_from_user.c
index fc5b1e2..56a5981 100644
--- a/lib/strncpy_from_user.c
+++ b/lib/strncpy_from_user.c
@@ -6,6 +6,7 @@
#include <linux/uaccess.h>
#include <linux/kernel.h>
#include <linux/errno.h>
+#include <linux/mm.h>
#include <asm/byteorder.h>
#include <asm/word-at-a-time.h>
@@ -101,7 +102,7 @@ long strncpy_from_user(char *dst, const char __user *src, long count)
return 0;
max_addr = user_addr_max();
- src_addr = (unsigned long)src;
+ src_addr = (unsigned long)untagged_addr(src);
if (likely(src_addr < max_addr)) {
unsigned long max = max_addr - src_addr;
long retval;
diff --git a/lib/strnlen_user.c b/lib/strnlen_user.c
index 0bf7c06..37628e7 100644
--- a/lib/strnlen_user.c
+++ b/lib/strnlen_user.c
@@ -2,6 +2,7 @@
#include <linux/kernel.h>
#include <linux/export.h>
#include <linux/uaccess.h>
+#include <linux/mm.h>
#include <asm/word-at-a-time.h>
@@ -102,7 +103,7 @@ long strnlen_user(const char __user *str, long count)
return 0;
max_addr = user_addr_max();
- src_addr = (unsigned long)str;
+ src_addr = (unsigned long)untagged_addr(str);
if (likely(src_addr < max_addr)) {
unsigned long max = max_addr - src_addr;
long retval;
diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index bd0e067..d86d3b1 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -481,29 +481,6 @@ static noinline void __init copy_user_test(void)
kfree(kmem);
}
-static noinline void __init use_after_scope_test(void)
-{
- volatile char *volatile p;
-
- pr_info("use-after-scope on int\n");
- {
- int local = 0;
-
- p = (char *)&local;
- }
- p[0] = 1;
- p[3] = 1;
-
- pr_info("use-after-scope on array\n");
- {
- char local[1024] = {0};
-
- p = local;
- }
- p[0] = 1;
- p[1023] = 1;
-}
-
static noinline void __init kasan_alloca_oob_left(void)
{
volatile int i = 10;
@@ -580,6 +557,73 @@ static noinline void __init kmem_cache_invalid_free(void)
kmem_cache_destroy(cache);
}
+static noinline void __init kasan_memchr(void)
+{
+ char *ptr;
+ size_t size = 24;
+
+ pr_info("out-of-bounds in memchr\n");
+ ptr = kmalloc(size, GFP_KERNEL | __GFP_ZERO);
+ if (!ptr)
+ return;
+
+ memchr(ptr, '1', size + 1);
+ kfree(ptr);
+}
+
+static noinline void __init kasan_memcmp(void)
+{
+ char *ptr;
+ size_t size = 24;
+ int arr[9];
+
+ pr_info("out-of-bounds in memcmp\n");
+ ptr = kmalloc(size, GFP_KERNEL | __GFP_ZERO);
+ if (!ptr)
+ return;
+
+ memset(arr, 0, sizeof(arr));
+ memcmp(ptr, arr, size+1);
+ kfree(ptr);
+}
+
+static noinline void __init kasan_strings(void)
+{
+ char *ptr;
+ size_t size = 24;
+
+ pr_info("use-after-free in strchr\n");
+ ptr = kmalloc(size, GFP_KERNEL | __GFP_ZERO);
+ if (!ptr)
+ return;
+
+ kfree(ptr);
+
+ /*
+ * Try to cause only 1 invalid access (less spam in dmesg).
+ * For that we need ptr to point to zeroed byte.
+ * Skip metadata that could be stored in freed object so ptr
+ * will likely point to zeroed byte.
+ */
+ ptr += 16;
+ strchr(ptr, '1');
+
+ pr_info("use-after-free in strrchr\n");
+ strrchr(ptr, '1');
+
+ pr_info("use-after-free in strcmp\n");
+ strcmp(ptr, "2");
+
+ pr_info("use-after-free in strncmp\n");
+ strncmp(ptr, "2", 1);
+
+ pr_info("use-after-free in strlen\n");
+ strlen(ptr);
+
+ pr_info("use-after-free in strnlen\n");
+ strnlen(ptr, 1);
+}
+
static int __init kmalloc_tests_init(void)
{
/*
@@ -616,9 +660,11 @@ static int __init kmalloc_tests_init(void)
kasan_alloca_oob_right();
ksize_unpoisons_memory();
copy_user_test();
- use_after_scope_test();
kmem_cache_double_free();
kmem_cache_invalid_free();
+ kasan_memchr();
+ kasan_memcmp();
+ kasan_strings();
kasan_restore_multi_shot(multishot);
diff --git a/lib/test_meminit.c b/lib/test_meminit.c
new file mode 100644
index 0000000..e4f706a
--- /dev/null
+++ b/lib/test_meminit.c
@@ -0,0 +1,409 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test cases for SL[AOU]B/page initialization at alloc/free time.
+ */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/vmalloc.h>
+
+#define GARBAGE_INT (0x09A7BA9E)
+#define GARBAGE_BYTE (0x9E)
+
+#define REPORT_FAILURES_IN_FN() \
+ do { \
+ if (failures) \
+ pr_info("%s failed %d out of %d times\n", \
+ __func__, failures, num_tests); \
+ else \
+ pr_info("all %d tests in %s passed\n", \
+ num_tests, __func__); \
+ } while (0)
+
+/* Calculate the number of uninitialized bytes in the buffer. */
+static int __init count_nonzero_bytes(void *ptr, size_t size)
+{
+ int i, ret = 0;
+ unsigned char *p = (unsigned char *)ptr;
+
+ for (i = 0; i < size; i++)
+ if (p[i])
+ ret++;
+ return ret;
+}
+
+/* Fill a buffer with garbage, skipping |skip| first bytes. */
+static void __init fill_with_garbage_skip(void *ptr, int size, size_t skip)
+{
+ unsigned int *p = (unsigned int *)((char *)ptr + skip);
+ int i = 0;
+
+ WARN_ON(skip > size);
+ size -= skip;
+
+ while (size >= sizeof(*p)) {
+ p[i] = GARBAGE_INT;
+ i++;
+ size -= sizeof(*p);
+ }
+ if (size)
+ memset(&p[i], GARBAGE_BYTE, size);
+}
+
+static void __init fill_with_garbage(void *ptr, size_t size)
+{
+ fill_with_garbage_skip(ptr, size, 0);
+}
+
+static int __init do_alloc_pages_order(int order, int *total_failures)
+{
+ struct page *page;
+ void *buf;
+ size_t size = PAGE_SIZE << order;
+
+ page = alloc_pages(GFP_KERNEL, order);
+ buf = page_address(page);
+ fill_with_garbage(buf, size);
+ __free_pages(page, order);
+
+ page = alloc_pages(GFP_KERNEL, order);
+ buf = page_address(page);
+ if (count_nonzero_bytes(buf, size))
+ (*total_failures)++;
+ fill_with_garbage(buf, size);
+ __free_pages(page, order);
+ return 1;
+}
+
+/* Test the page allocator by calling alloc_pages with different orders. */
+static int __init test_pages(int *total_failures)
+{
+ int failures = 0, num_tests = 0;
+ int i;
+
+ for (i = 0; i < 10; i++)
+ num_tests += do_alloc_pages_order(i, &failures);
+
+ REPORT_FAILURES_IN_FN();
+ *total_failures += failures;
+ return num_tests;
+}
+
+/* Test kmalloc() with given parameters. */
+static int __init do_kmalloc_size(size_t size, int *total_failures)
+{
+ void *buf;
+
+ buf = kmalloc(size, GFP_KERNEL);
+ fill_with_garbage(buf, size);
+ kfree(buf);
+
+ buf = kmalloc(size, GFP_KERNEL);
+ if (count_nonzero_bytes(buf, size))
+ (*total_failures)++;
+ fill_with_garbage(buf, size);
+ kfree(buf);
+ return 1;
+}
+
+/* Test vmalloc() with given parameters. */
+static int __init do_vmalloc_size(size_t size, int *total_failures)
+{
+ void *buf;
+
+ buf = vmalloc(size);
+ fill_with_garbage(buf, size);
+ vfree(buf);
+
+ buf = vmalloc(size);
+ if (count_nonzero_bytes(buf, size))
+ (*total_failures)++;
+ fill_with_garbage(buf, size);
+ vfree(buf);
+ return 1;
+}
+
+/* Test kmalloc()/vmalloc() by allocating objects of different sizes. */
+static int __init test_kvmalloc(int *total_failures)
+{
+ int failures = 0, num_tests = 0;
+ int i, size;
+
+ for (i = 0; i < 20; i++) {
+ size = 1 << i;
+ num_tests += do_kmalloc_size(size, &failures);
+ num_tests += do_vmalloc_size(size, &failures);
+ }
+
+ REPORT_FAILURES_IN_FN();
+ *total_failures += failures;
+ return num_tests;
+}
+
+#define CTOR_BYTES (sizeof(unsigned int))
+#define CTOR_PATTERN (0x41414141)
+/* Initialize the first 4 bytes of the object. */
+static void test_ctor(void *obj)
+{
+ *(unsigned int *)obj = CTOR_PATTERN;
+}
+
+/*
+ * Check the invariants for the buffer allocated from a slab cache.
+ * If the cache has a test constructor, the first 4 bytes of the object must
+ * always remain equal to CTOR_PATTERN.
+ * If the cache isn't an RCU-typesafe one, or if the allocation is done with
+ * __GFP_ZERO, then the object contents must be zeroed after allocation.
+ * If the cache is an RCU-typesafe one, the object contents must never be
+ * zeroed after the first use. This is checked by memcmp() in
+ * do_kmem_cache_size().
+ */
+static bool __init check_buf(void *buf, int size, bool want_ctor,
+ bool want_rcu, bool want_zero)
+{
+ int bytes;
+ bool fail = false;
+
+ bytes = count_nonzero_bytes(buf, size);
+ WARN_ON(want_ctor && want_zero);
+ if (want_zero)
+ return bytes;
+ if (want_ctor) {
+ if (*(unsigned int *)buf != CTOR_PATTERN)
+ fail = 1;
+ } else {
+ if (bytes)
+ fail = !want_rcu;
+ }
+ return fail;
+}
+
+#define BULK_SIZE 100
+static void *bulk_array[BULK_SIZE];
+
+/*
+ * Test kmem_cache with given parameters:
+ * want_ctor - use a constructor;
+ * want_rcu - use SLAB_TYPESAFE_BY_RCU;
+ * want_zero - use __GFP_ZERO.
+ */
+static int __init do_kmem_cache_size(size_t size, bool want_ctor,
+ bool want_rcu, bool want_zero,
+ int *total_failures)
+{
+ struct kmem_cache *c;
+ int iter;
+ bool fail = false;
+ gfp_t alloc_mask = GFP_KERNEL | (want_zero ? __GFP_ZERO : 0);
+ void *buf, *buf_copy;
+
+ c = kmem_cache_create("test_cache", size, 1,
+ want_rcu ? SLAB_TYPESAFE_BY_RCU : 0,
+ want_ctor ? test_ctor : NULL);
+ for (iter = 0; iter < 10; iter++) {
+ /* Do a test of bulk allocations */
+ if (!want_rcu && !want_ctor) {
+ int ret;
+
+ ret = kmem_cache_alloc_bulk(c, alloc_mask, BULK_SIZE, bulk_array);
+ if (!ret) {
+ fail = true;
+ } else {
+ int i;
+ for (i = 0; i < ret; i++)
+ fail |= check_buf(bulk_array[i], size, want_ctor, want_rcu, want_zero);
+ kmem_cache_free_bulk(c, ret, bulk_array);
+ }
+ }
+
+ buf = kmem_cache_alloc(c, alloc_mask);
+ /* Check that buf is zeroed, if it must be. */
+ fail |= check_buf(buf, size, want_ctor, want_rcu, want_zero);
+ fill_with_garbage_skip(buf, size, want_ctor ? CTOR_BYTES : 0);
+
+ if (!want_rcu) {
+ kmem_cache_free(c, buf);
+ continue;
+ }
+
+ /*
+ * If this is an RCU cache, use a critical section to ensure we
+ * can touch objects after they're freed.
+ */
+ rcu_read_lock();
+ /*
+ * Copy the buffer to check that it's not wiped on
+ * free().
+ */
+ buf_copy = kmalloc(size, GFP_ATOMIC);
+ if (buf_copy)
+ memcpy(buf_copy, buf, size);
+
+ kmem_cache_free(c, buf);
+ /*
+ * Check that |buf| is intact after kmem_cache_free().
+ * |want_zero| is false, because we wrote garbage to
+ * the buffer already.
+ */
+ fail |= check_buf(buf, size, want_ctor, want_rcu,
+ false);
+ if (buf_copy) {
+ fail |= (bool)memcmp(buf, buf_copy, size);
+ kfree(buf_copy);
+ }
+ rcu_read_unlock();
+ }
+ kmem_cache_destroy(c);
+
+ *total_failures += fail;
+ return 1;
+}
+
+/*
+ * Check that the data written to an RCU-allocated object survives
+ * reallocation.
+ */
+static int __init do_kmem_cache_rcu_persistent(int size, int *total_failures)
+{
+ struct kmem_cache *c;
+ void *buf, *buf_contents, *saved_ptr;
+ void **used_objects;
+ int i, iter, maxiter = 1024;
+ bool fail = false;
+
+ c = kmem_cache_create("test_cache", size, size, SLAB_TYPESAFE_BY_RCU,
+ NULL);
+ buf = kmem_cache_alloc(c, GFP_KERNEL);
+ saved_ptr = buf;
+ fill_with_garbage(buf, size);
+ buf_contents = kmalloc(size, GFP_KERNEL);
+ if (!buf_contents)
+ goto out;
+ used_objects = kmalloc_array(maxiter, sizeof(void *), GFP_KERNEL);
+ if (!used_objects) {
+ kfree(buf_contents);
+ goto out;
+ }
+ memcpy(buf_contents, buf, size);
+ kmem_cache_free(c, buf);
+ /*
+ * Run for a fixed number of iterations. If we never hit saved_ptr,
+ * assume the test passes.
+ */
+ for (iter = 0; iter < maxiter; iter++) {
+ buf = kmem_cache_alloc(c, GFP_KERNEL);
+ used_objects[iter] = buf;
+ if (buf == saved_ptr) {
+ fail = memcmp(buf_contents, buf, size);
+ for (i = 0; i <= iter; i++)
+ kmem_cache_free(c, used_objects[i]);
+ goto free_out;
+ }
+ }
+
+free_out:
+ kmem_cache_destroy(c);
+ kfree(buf_contents);
+ kfree(used_objects);
+out:
+ *total_failures += fail;
+ return 1;
+}
+
+static int __init do_kmem_cache_size_bulk(int size, int *total_failures)
+{
+ struct kmem_cache *c;
+ int i, iter, maxiter = 1024;
+ int num, bytes;
+ bool fail = false;
+ void *objects[10];
+
+ c = kmem_cache_create("test_cache", size, size, 0, NULL);
+ for (iter = 0; (iter < maxiter) && !fail; iter++) {
+ num = kmem_cache_alloc_bulk(c, GFP_KERNEL, ARRAY_SIZE(objects),
+ objects);
+ for (i = 0; i < num; i++) {
+ bytes = count_nonzero_bytes(objects[i], size);
+ if (bytes)
+ fail = true;
+ fill_with_garbage(objects[i], size);
+ }
+
+ if (num)
+ kmem_cache_free_bulk(c, num, objects);
+ }
+ *total_failures += fail;
+ return 1;
+}
+
+/*
+ * Test kmem_cache allocation by creating caches of different sizes, with and
+ * without constructors, with and without SLAB_TYPESAFE_BY_RCU.
+ */
+static int __init test_kmemcache(int *total_failures)
+{
+ int failures = 0, num_tests = 0;
+ int i, flags, size;
+ bool ctor, rcu, zero;
+
+ for (i = 0; i < 10; i++) {
+ size = 8 << i;
+ for (flags = 0; flags < 8; flags++) {
+ ctor = flags & 1;
+ rcu = flags & 2;
+ zero = flags & 4;
+ if (ctor & zero)
+ continue;
+ num_tests += do_kmem_cache_size(size, ctor, rcu, zero,
+ &failures);
+ }
+ num_tests += do_kmem_cache_size_bulk(size, &failures);
+ }
+ REPORT_FAILURES_IN_FN();
+ *total_failures += failures;
+ return num_tests;
+}
+
+/* Test the behavior of SLAB_TYPESAFE_BY_RCU caches of different sizes. */
+static int __init test_rcu_persistent(int *total_failures)
+{
+ int failures = 0, num_tests = 0;
+ int i, size;
+
+ for (i = 0; i < 10; i++) {
+ size = 8 << i;
+ num_tests += do_kmem_cache_rcu_persistent(size, &failures);
+ }
+ REPORT_FAILURES_IN_FN();
+ *total_failures += failures;
+ return num_tests;
+}
+
+/*
+ * Run the tests. Each test function returns the number of executed tests and
+ * updates |failures| with the number of failed tests.
+ */
+static int __init test_meminit_init(void)
+{
+ int failures = 0, num_tests = 0;
+
+ num_tests += test_pages(&failures);
+ num_tests += test_kvmalloc(&failures);
+ num_tests += test_kmemcache(&failures);
+ num_tests += test_rcu_persistent(&failures);
+
+ if (failures == 0)
+ pr_info("all %d tests passed!\n", num_tests);
+ else
+ pr_info("failures: %d out of %d\n", failures, num_tests);
+
+ return failures ? -EINVAL : 0;
+}
+module_init(test_meminit_init);
+
+MODULE_LICENSE("GPL");
diff --git a/lib/test_stackinit.c b/lib/test_stackinit.c
new file mode 100644
index 0000000..c355575
--- /dev/null
+++ b/lib/test_stackinit.c
@@ -0,0 +1,395 @@
+// SPDX-Licenses: GPLv2
+/*
+ * Test cases for compiler-based stack variable zeroing via future
+ * compiler flags or CONFIG_GCC_PLUGIN_STRUCTLEAK*.
+ */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/string.h>
+
+/* Exfiltration buffer. */
+#define MAX_VAR_SIZE 128
+static u8 check_buf[MAX_VAR_SIZE];
+
+/* Character array to trigger stack protector in all functions. */
+#define VAR_BUFFER 32
+
+/* Volatile mask to convince compiler to copy memory with 0xff. */
+static volatile u8 forced_mask = 0xff;
+
+/* Location and size tracking to validate fill and test are colocated. */
+static void *fill_start, *target_start;
+static size_t fill_size, target_size;
+
+static bool range_contains(char *haystack_start, size_t haystack_size,
+ char *needle_start, size_t needle_size)
+{
+ if (needle_start >= haystack_start &&
+ needle_start + needle_size <= haystack_start + haystack_size)
+ return true;
+ return false;
+}
+
+#define DO_NOTHING_TYPE_SCALAR(var_type) var_type
+#define DO_NOTHING_TYPE_STRING(var_type) void
+#define DO_NOTHING_TYPE_STRUCT(var_type) void
+
+#define DO_NOTHING_RETURN_SCALAR(ptr) *(ptr)
+#define DO_NOTHING_RETURN_STRING(ptr) /**/
+#define DO_NOTHING_RETURN_STRUCT(ptr) /**/
+
+#define DO_NOTHING_CALL_SCALAR(var, name) \
+ (var) = do_nothing_ ## name(&(var))
+#define DO_NOTHING_CALL_STRING(var, name) \
+ do_nothing_ ## name(var)
+#define DO_NOTHING_CALL_STRUCT(var, name) \
+ do_nothing_ ## name(&(var))
+
+#define FETCH_ARG_SCALAR(var) &var
+#define FETCH_ARG_STRING(var) var
+#define FETCH_ARG_STRUCT(var) &var
+
+#define FILL_SIZE_STRING 16
+
+#define INIT_CLONE_SCALAR /**/
+#define INIT_CLONE_STRING [FILL_SIZE_STRING]
+#define INIT_CLONE_STRUCT /**/
+
+#define INIT_SCALAR_none /**/
+#define INIT_SCALAR_zero = 0
+
+#define INIT_STRING_none [FILL_SIZE_STRING] /**/
+#define INIT_STRING_zero [FILL_SIZE_STRING] = { }
+
+#define INIT_STRUCT_none /**/
+#define INIT_STRUCT_zero = { }
+#define INIT_STRUCT_static_partial = { .two = 0, }
+#define INIT_STRUCT_static_all = { .one = arg->one, \
+ .two = arg->two, \
+ .three = arg->three, \
+ .four = arg->four, \
+ }
+#define INIT_STRUCT_dynamic_partial = { .two = arg->two, }
+#define INIT_STRUCT_dynamic_all = { .one = arg->one, \
+ .two = arg->two, \
+ .three = arg->three, \
+ .four = arg->four, \
+ }
+#define INIT_STRUCT_runtime_partial ; \
+ var.two = 0
+#define INIT_STRUCT_runtime_all ; \
+ var.one = 0; \
+ var.two = 0; \
+ var.three = 0; \
+ memset(&var.four, 0, \
+ sizeof(var.four))
+
+/*
+ * @name: unique string name for the test
+ * @var_type: type to be tested for zeroing initialization
+ * @which: is this a SCALAR, STRING, or STRUCT type?
+ * @init_level: what kind of initialization is performed
+ * @xfail: is this test expected to fail?
+ */
+#define DEFINE_TEST_DRIVER(name, var_type, which, xfail) \
+/* Returns 0 on success, 1 on failure. */ \
+static noinline __init int test_ ## name (void) \
+{ \
+ var_type zero INIT_CLONE_ ## which; \
+ int ignored; \
+ u8 sum = 0, i; \
+ \
+ /* Notice when a new test is larger than expected. */ \
+ BUILD_BUG_ON(sizeof(zero) > MAX_VAR_SIZE); \
+ \
+ /* Fill clone type with zero for per-field init. */ \
+ memset(&zero, 0x00, sizeof(zero)); \
+ /* Clear entire check buffer for 0xFF overlap test. */ \
+ memset(check_buf, 0x00, sizeof(check_buf)); \
+ /* Fill stack with 0xFF. */ \
+ ignored = leaf_ ##name((unsigned long)&ignored, 1, \
+ FETCH_ARG_ ## which(zero)); \
+ /* Verify all bytes overwritten with 0xFF. */ \
+ for (sum = 0, i = 0; i < target_size; i++) \
+ sum += (check_buf[i] != 0xFF); \
+ if (sum) { \
+ pr_err(#name ": leaf fill was not 0xFF!?\n"); \
+ return 1; \
+ } \
+ /* Clear entire check buffer for later bit tests. */ \
+ memset(check_buf, 0x00, sizeof(check_buf)); \
+ /* Extract stack-defined variable contents. */ \
+ ignored = leaf_ ##name((unsigned long)&ignored, 0, \
+ FETCH_ARG_ ## which(zero)); \
+ \
+ /* Validate that compiler lined up fill and target. */ \
+ if (!range_contains(fill_start, fill_size, \
+ target_start, target_size)) { \
+ pr_err(#name ": stack fill missed target!?\n"); \
+ pr_err(#name ": fill %zu wide\n", fill_size); \
+ pr_err(#name ": target offset by %d\n", \
+ (int)((ssize_t)(uintptr_t)fill_start - \
+ (ssize_t)(uintptr_t)target_start)); \
+ return 1; \
+ } \
+ \
+ /* Look for any bytes still 0xFF in check region. */ \
+ for (sum = 0, i = 0; i < target_size; i++) \
+ sum += (check_buf[i] == 0xFF); \
+ \
+ if (sum == 0) { \
+ pr_info(#name " ok\n"); \
+ return 0; \
+ } else { \
+ pr_warn(#name " %sFAIL (uninit bytes: %d)\n", \
+ (xfail) ? "X" : "", sum); \
+ return (xfail) ? 0 : 1; \
+ } \
+}
+#define DEFINE_TEST(name, var_type, which, init_level) \
+/* no-op to force compiler into ignoring "uninitialized" vars */\
+static noinline __init DO_NOTHING_TYPE_ ## which(var_type) \
+do_nothing_ ## name(var_type *ptr) \
+{ \
+ /* Will always be true, but compiler doesn't know. */ \
+ if ((unsigned long)ptr > 0x2) \
+ return DO_NOTHING_RETURN_ ## which(ptr); \
+ else \
+ return DO_NOTHING_RETURN_ ## which(ptr + 1); \
+} \
+static noinline __init int leaf_ ## name(unsigned long sp, \
+ bool fill, \
+ var_type *arg) \
+{ \
+ char buf[VAR_BUFFER]; \
+ var_type var INIT_ ## which ## _ ## init_level; \
+ \
+ target_start = &var; \
+ target_size = sizeof(var); \
+ /* \
+ * Keep this buffer around to make sure we've got a \
+ * stack frame of SOME kind... \
+ */ \
+ memset(buf, (char)(sp & 0xff), sizeof(buf)); \
+ /* Fill variable with 0xFF. */ \
+ if (fill) { \
+ fill_start = &var; \
+ fill_size = sizeof(var); \
+ memset(fill_start, \
+ (char)((sp & 0xff) | forced_mask), \
+ fill_size); \
+ } \
+ \
+ /* Silence "never initialized" warnings. */ \
+ DO_NOTHING_CALL_ ## which(var, name); \
+ \
+ /* Exfiltrate "var". */ \
+ memcpy(check_buf, target_start, target_size); \
+ \
+ return (int)buf[0] | (int)buf[sizeof(buf) - 1]; \
+} \
+DEFINE_TEST_DRIVER(name, var_type, which, 0)
+
+/* Structure with no padding. */
+struct test_packed {
+ unsigned long one;
+ unsigned long two;
+ unsigned long three;
+ unsigned long four;
+};
+
+/* Simple structure with padding likely to be covered by compiler. */
+struct test_small_hole {
+ size_t one;
+ char two;
+ /* 3 byte padding hole here. */
+ int three;
+ unsigned long four;
+};
+
+/* Try to trigger unhandled padding in a structure. */
+struct test_aligned {
+ u32 internal1;
+ u64 internal2;
+} __aligned(64);
+
+struct test_big_hole {
+ u8 one;
+ u8 two;
+ u8 three;
+ /* 61 byte padding hole here. */
+ struct test_aligned four;
+} __aligned(64);
+
+struct test_trailing_hole {
+ char *one;
+ char *two;
+ char *three;
+ char four;
+ /* "sizeof(unsigned long) - 1" byte padding hole here. */
+};
+
+/* Test if STRUCTLEAK is clearing structs with __user fields. */
+struct test_user {
+ u8 one;
+ unsigned long two;
+ char __user *three;
+ unsigned long four;
+};
+
+#define DEFINE_SCALAR_TEST(name, init) \
+ DEFINE_TEST(name ## _ ## init, name, SCALAR, init)
+
+#define DEFINE_SCALAR_TESTS(init) \
+ DEFINE_SCALAR_TEST(u8, init); \
+ DEFINE_SCALAR_TEST(u16, init); \
+ DEFINE_SCALAR_TEST(u32, init); \
+ DEFINE_SCALAR_TEST(u64, init); \
+ DEFINE_TEST(char_array_ ## init, unsigned char, STRING, init)
+
+#define DEFINE_STRUCT_TEST(name, init) \
+ DEFINE_TEST(name ## _ ## init, \
+ struct test_ ## name, STRUCT, init)
+
+#define DEFINE_STRUCT_TESTS(init) \
+ DEFINE_STRUCT_TEST(small_hole, init); \
+ DEFINE_STRUCT_TEST(big_hole, init); \
+ DEFINE_STRUCT_TEST(trailing_hole, init); \
+ DEFINE_STRUCT_TEST(packed, init)
+
+/* These should be fully initialized all the time! */
+DEFINE_SCALAR_TESTS(zero);
+DEFINE_STRUCT_TESTS(zero);
+/* Static initialization: padding may be left uninitialized. */
+DEFINE_STRUCT_TESTS(static_partial);
+DEFINE_STRUCT_TESTS(static_all);
+/* Dynamic initialization: padding may be left uninitialized. */
+DEFINE_STRUCT_TESTS(dynamic_partial);
+DEFINE_STRUCT_TESTS(dynamic_all);
+/* Runtime initialization: padding may be left uninitialized. */
+DEFINE_STRUCT_TESTS(runtime_partial);
+DEFINE_STRUCT_TESTS(runtime_all);
+/* No initialization without compiler instrumentation. */
+DEFINE_SCALAR_TESTS(none);
+DEFINE_STRUCT_TESTS(none);
+DEFINE_TEST(user, struct test_user, STRUCT, none);
+
+/*
+ * Check two uses through a variable declaration outside either path,
+ * which was noticed as a special case in porting earlier stack init
+ * compiler logic.
+ */
+static int noinline __leaf_switch_none(int path, bool fill)
+{
+ switch (path) {
+ uint64_t var;
+
+ case 1:
+ target_start = &var;
+ target_size = sizeof(var);
+ if (fill) {
+ fill_start = &var;
+ fill_size = sizeof(var);
+
+ memset(fill_start, forced_mask | 0x55, fill_size);
+ }
+ memcpy(check_buf, target_start, target_size);
+ break;
+ case 2:
+ target_start = &var;
+ target_size = sizeof(var);
+ if (fill) {
+ fill_start = &var;
+ fill_size = sizeof(var);
+
+ memset(fill_start, forced_mask | 0xaa, fill_size);
+ }
+ memcpy(check_buf, target_start, target_size);
+ break;
+ default:
+ var = 5;
+ return var & forced_mask;
+ }
+ return 0;
+}
+
+static noinline __init int leaf_switch_1_none(unsigned long sp, bool fill,
+ uint64_t *arg)
+{
+ return __leaf_switch_none(1, fill);
+}
+
+static noinline __init int leaf_switch_2_none(unsigned long sp, bool fill,
+ uint64_t *arg)
+{
+ return __leaf_switch_none(2, fill);
+}
+
+/*
+ * These are expected to fail for most configurations because neither
+ * GCC nor Clang have a way to perform initialization of variables in
+ * non-code areas (i.e. in a switch statement before the first "case").
+ * https://bugs.llvm.org/show_bug.cgi?id=44916
+ */
+DEFINE_TEST_DRIVER(switch_1_none, uint64_t, SCALAR, 1);
+DEFINE_TEST_DRIVER(switch_2_none, uint64_t, SCALAR, 1);
+
+static int __init test_stackinit_init(void)
+{
+ unsigned int failures = 0;
+
+#define test_scalars(init) do { \
+ failures += test_u8_ ## init (); \
+ failures += test_u16_ ## init (); \
+ failures += test_u32_ ## init (); \
+ failures += test_u64_ ## init (); \
+ failures += test_char_array_ ## init (); \
+ } while (0)
+
+#define test_structs(init) do { \
+ failures += test_small_hole_ ## init (); \
+ failures += test_big_hole_ ## init (); \
+ failures += test_trailing_hole_ ## init (); \
+ failures += test_packed_ ## init (); \
+ } while (0)
+
+ /* These are explicitly initialized and should always pass. */
+ test_scalars(zero);
+ test_structs(zero);
+ /* Padding here appears to be accidentally always initialized? */
+ test_structs(dynamic_partial);
+ /* Padding initialization depends on compiler behaviors. */
+ test_structs(static_partial);
+ test_structs(static_all);
+ test_structs(dynamic_all);
+ test_structs(runtime_partial);
+ test_structs(runtime_all);
+
+ /* STRUCTLEAK_BYREF_ALL should cover everything from here down. */
+ test_scalars(none);
+ failures += test_switch_1_none();
+ failures += test_switch_2_none();
+
+ /* STRUCTLEAK_BYREF should cover from here down. */
+ test_structs(none);
+
+ /* STRUCTLEAK will only cover this. */
+ failures += test_user();
+
+ if (failures == 0)
+ pr_info("all tests passed!\n");
+ else
+ pr_err("failures: %u\n", failures);
+
+ return failures ? -EINVAL : 0;
+}
+module_init(test_stackinit_init);
+
+static void __exit test_stackinit_exit(void)
+{ }
+module_exit(test_stackinit_exit);
+
+MODULE_LICENSE("GPL");
diff --git a/lib/vdso/Kconfig b/lib/vdso/Kconfig
new file mode 100644
index 0000000..9fe698f
--- /dev/null
+++ b/lib/vdso/Kconfig
@@ -0,0 +1,27 @@
+# SPDX-License-Identifier: GPL-2.0
+
+config HAVE_GENERIC_VDSO
+ bool
+
+if HAVE_GENERIC_VDSO
+
+config GENERIC_GETTIMEOFDAY
+ bool
+ help
+ This is a generic implementation of gettimeofday vdso.
+ Each architecture that enables this feature has to
+ provide the fallback implementation.
+
+config GENERIC_VDSO_32
+ bool
+ depends on GENERIC_GETTIMEOFDAY && !64BIT
+ help
+ This config option helps to avoid possible performance issues
+ in 32 bit only architectures.
+
+config GENERIC_COMPAT_VDSO
+ bool
+ help
+ This config option enables the compat VDSO layer.
+
+endif
diff --git a/lib/vdso/Makefile b/lib/vdso/Makefile
new file mode 100644
index 0000000..c415a68
--- /dev/null
+++ b/lib/vdso/Makefile
@@ -0,0 +1,22 @@
+# SPDX-License-Identifier: GPL-2.0
+
+GENERIC_VDSO_MK_PATH := $(abspath $(lastword $(MAKEFILE_LIST)))
+GENERIC_VDSO_DIR := $(dir $(GENERIC_VDSO_MK_PATH))
+
+c-gettimeofday-$(CONFIG_GENERIC_GETTIMEOFDAY) := $(addprefix $(GENERIC_VDSO_DIR), gettimeofday.c)
+
+# This cmd checks that the vdso library does not contain absolute relocation
+# It has to be called after the linking of the vdso library and requires it
+# as a parameter.
+#
+# $(ARCH_REL_TYPE_ABS) is defined in the arch specific makefile and corresponds
+# to the absolute relocation types printed by "objdump -R" and accepted by the
+# dynamic linker.
+ifndef ARCH_REL_TYPE_ABS
+$(error ARCH_REL_TYPE_ABS is not set)
+endif
+
+quiet_cmd_vdso_check = VDSOCHK $@
+ cmd_vdso_check = if $(OBJDUMP) -R $@ | egrep -h "$(ARCH_REL_TYPE_ABS)"; \
+ then (echo >&2 "$@: dynamic relocations are not supported"; \
+ rm -f $@; /bin/false); fi
diff --git a/lib/vdso/gettimeofday.c b/lib/vdso/gettimeofday.c
new file mode 100644
index 0000000..9ea1ffd
--- /dev/null
+++ b/lib/vdso/gettimeofday.c
@@ -0,0 +1,249 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Generic userspace implementations of gettimeofday() and similar.
+ */
+#include <vdso/datapage.h>
+#include <vdso/helpers.h>
+
+#ifndef vdso_calc_delta
+/*
+ * Default implementation which works for all sane clocksources. That
+ * obviously excludes x86/TSC.
+ */
+static __always_inline
+u64 vdso_calc_delta(u64 cycles, u64 last, u64 mask, u32 mult)
+{
+ return ((cycles - last) & mask) * mult;
+}
+#endif
+
+#ifndef __arch_vdso_hres_capable
+static inline bool __arch_vdso_hres_capable(void)
+{
+ return true;
+}
+#endif
+
+static __always_inline int do_hres(const struct vdso_data *vd, clockid_t clk,
+ struct __kernel_timespec *ts)
+{
+ const struct vdso_timestamp *vdso_ts = &vd->basetime[clk];
+ u64 cycles, last, sec, ns;
+ u32 seq;
+
+ /* Allows to compile the high resolution parts out */
+ if (!__arch_vdso_hres_capable())
+ return -1;
+
+ do {
+ seq = vdso_read_begin(vd);
+ cycles = __arch_get_hw_counter(vd->clock_mode);
+ ns = vdso_ts->nsec;
+ last = vd->cycle_last;
+ if (unlikely((s64)cycles < 0))
+ return -1;
+
+ ns += vdso_calc_delta(cycles, last, vd->mask, vd->mult);
+ ns >>= vd->shift;
+ sec = vdso_ts->sec;
+ } while (unlikely(vdso_read_retry(vd, seq)));
+
+ /*
+ * Do this outside the loop: a race inside the loop could result
+ * in __iter_div_u64_rem() being extremely slow.
+ */
+ ts->tv_sec = sec + __iter_div_u64_rem(ns, NSEC_PER_SEC, &ns);
+ ts->tv_nsec = ns;
+
+ return 0;
+}
+
+static __always_inline int do_coarse(const struct vdso_data *vd, clockid_t clk,
+ struct __kernel_timespec *ts)
+{
+ const struct vdso_timestamp *vdso_ts = &vd->basetime[clk];
+ u32 seq;
+
+ do {
+ seq = vdso_read_begin(vd);
+ ts->tv_sec = vdso_ts->sec;
+ ts->tv_nsec = vdso_ts->nsec;
+ } while (unlikely(vdso_read_retry(vd, seq)));
+
+ return 0;
+}
+
+static __maybe_unused int
+__cvdso_clock_gettime_common(clockid_t clock, struct __kernel_timespec *ts)
+{
+ const struct vdso_data *vd = __arch_get_vdso_data();
+ u32 msk;
+
+ /* Check for negative values or invalid clocks */
+ if (unlikely((u32) clock >= MAX_CLOCKS))
+ return -1;
+
+ /*
+ * Convert the clockid to a bitmask and use it to check which
+ * clocks are handled in the VDSO directly.
+ */
+ msk = 1U << clock;
+ if (likely(msk & VDSO_HRES))
+ vd = &vd[CS_HRES_COARSE];
+ else if (msk & VDSO_COARSE)
+ return do_coarse(&vd[CS_HRES_COARSE], clock, ts);
+ else if (msk & VDSO_RAW)
+ vd = &vd[CS_RAW];
+ else
+ return -1;
+
+ return do_hres(vd, clock, ts);
+}
+
+static __maybe_unused int
+__cvdso_clock_gettime(clockid_t clock, struct __kernel_timespec *ts)
+{
+ int ret = __cvdso_clock_gettime_common(clock, ts);
+
+ if (unlikely(ret))
+ return clock_gettime_fallback(clock, ts);
+ return 0;
+}
+
+#ifdef BUILD_VDSO32
+static __maybe_unused int
+__cvdso_clock_gettime32(clockid_t clock, struct old_timespec32 *res)
+{
+ struct __kernel_timespec ts;
+ int ret;
+
+ ret = __cvdso_clock_gettime_common(clock, &ts);
+
+#ifdef VDSO_HAS_32BIT_FALLBACK
+ if (unlikely(ret))
+ return clock_gettime32_fallback(clock, res);
+#else
+ if (unlikely(ret))
+ ret = clock_gettime_fallback(clock, &ts);
+#endif
+
+ /* For ret == 0 */
+ res->tv_sec = ts.tv_sec;
+ res->tv_nsec = ts.tv_nsec;
+
+ return ret;
+}
+#endif /* BUILD_VDSO32 */
+
+static __maybe_unused int
+__cvdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz)
+{
+ const struct vdso_data *vd = __arch_get_vdso_data();
+
+ if (likely(tv != NULL)) {
+ struct __kernel_timespec ts;
+
+ if (do_hres(&vd[CS_HRES_COARSE], CLOCK_REALTIME, &ts))
+ return gettimeofday_fallback(tv, tz);
+
+ tv->tv_sec = ts.tv_sec;
+ tv->tv_usec = (u32)ts.tv_nsec / NSEC_PER_USEC;
+ }
+
+ if (unlikely(tz != NULL)) {
+ tz->tz_minuteswest = vd[CS_HRES_COARSE].tz_minuteswest;
+ tz->tz_dsttime = vd[CS_HRES_COARSE].tz_dsttime;
+ }
+
+ return 0;
+}
+
+#ifdef VDSO_HAS_TIME
+static __maybe_unused time_t __cvdso_time(time_t *time)
+{
+ const struct vdso_data *vd = __arch_get_vdso_data();
+ time_t t = READ_ONCE(vd[CS_HRES_COARSE].basetime[CLOCK_REALTIME].sec);
+
+ if (time)
+ *time = t;
+
+ return t;
+}
+#endif /* VDSO_HAS_TIME */
+
+#ifdef VDSO_HAS_CLOCK_GETRES
+static __maybe_unused
+int __cvdso_clock_getres_common(clockid_t clock, struct __kernel_timespec *res)
+{
+ const struct vdso_data *vd = __arch_get_vdso_data();
+ u32 msk;
+ u64 ns;
+
+ /* Check for negative values or invalid clocks */
+ if (unlikely((u32) clock >= MAX_CLOCKS))
+ return -1;
+
+ /*
+ * Convert the clockid to a bitmask and use it to check which
+ * clocks are handled in the VDSO directly.
+ */
+ msk = 1U << clock;
+ if (msk & (VDSO_HRES | VDSO_RAW)) {
+ /*
+ * Preserves the behaviour of posix_get_hrtimer_res().
+ */
+ ns = READ_ONCE(vd[CS_HRES_COARSE].hrtimer_res);
+ } else if (msk & VDSO_COARSE) {
+ /*
+ * Preserves the behaviour of posix_get_coarse_res().
+ */
+ ns = LOW_RES_NSEC;
+ } else {
+ return -1;
+ }
+
+ if (likely(res)) {
+ res->tv_sec = 0;
+ res->tv_nsec = ns;
+ }
+ return 0;
+}
+
+static __maybe_unused
+int __cvdso_clock_getres(clockid_t clock, struct __kernel_timespec *res)
+{
+ int ret = __cvdso_clock_getres_common(clock, res);
+
+ if (unlikely(ret))
+ return clock_getres_fallback(clock, res);
+ return 0;
+}
+
+#ifdef BUILD_VDSO32
+static __maybe_unused int
+__cvdso_clock_getres_time32(clockid_t clock, struct old_timespec32 *res)
+{
+ struct __kernel_timespec ts;
+ int ret;
+
+ ret = __cvdso_clock_getres_common(clock, &ts);
+
+#ifdef VDSO_HAS_32BIT_FALLBACK
+ if (unlikely(ret))
+ return clock_getres32_fallback(clock, res);
+#else
+ if (unlikely(ret)) {
+ ret = clock_getres_fallback(clock, &ts);
+ if (unlikely(ret))
+ return ret;
+ }
+#endif
+
+ if (likely(res)) {
+ res->tv_sec = ts.tv_sec;
+ res->tv_nsec = ts.tv_nsec;
+ }
+ return ret;
+}
+#endif /* BUILD_VDSO32 */
+#endif /* VDSO_HAS_CLOCK_GETRES */
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index c261951..56865d6 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -1734,23 +1734,12 @@ static int __init initialize_ptr_random(void)
}
early_initcall(initialize_ptr_random);
-/* Maps a pointer to a 32 bit unique identifier. */
-static char *ptr_to_id(char *buf, char *end, void *ptr, struct printf_spec spec)
+static inline int __ptr_to_hashval(const void *ptr, unsigned long *hashval_out)
{
- const char *str = sizeof(ptr) == 8 ? "(____ptrval____)" : "(ptrval)";
unsigned long hashval;
- /* When debugging early boot use non-cryptographically secure hash. */
- if (unlikely(debug_boot_weak_hash)) {
- hashval = hash_long((unsigned long)ptr, 32);
- return pointer_string(buf, end, (const void *)hashval, spec);
- }
-
- if (static_branch_unlikely(¬_filled_random_ptr_key)) {
- spec.field_width = 2 * sizeof(ptr);
- /* string length must be less than default_width */
- return string(buf, end, str, spec);
- }
+ if (static_branch_unlikely(¬_filled_random_ptr_key))
+ return -EAGAIN;
#ifdef CONFIG_64BIT
hashval = (unsigned long)siphash_1u64((u64)ptr, &ptr_key);
@@ -1762,6 +1751,36 @@ static char *ptr_to_id(char *buf, char *end, void *ptr, struct printf_spec spec)
#else
hashval = (unsigned long)siphash_1u32((u32)ptr, &ptr_key);
#endif
+ *hashval_out = hashval;
+ return 0;
+}
+
+int ptr_to_hashval(const void *ptr, unsigned long *hashval_out)
+{
+ return __ptr_to_hashval(ptr, hashval_out);
+}
+EXPORT_SYMBOL_GPL(ptr_to_hashval);
+
+/* Maps a pointer to a 32 bit unique identifier. */
+static char *ptr_to_id(char *buf, char *end, void *ptr, struct printf_spec spec)
+{
+ const char *str = sizeof(ptr) == 8 ? "(____ptrval____)" : "(ptrval)";
+ unsigned long hashval;
+ int ret;
+
+ /* When debugging early boot use non-cryptographically secure hash. */
+ if (unlikely(debug_boot_weak_hash)) {
+ hashval = hash_long((unsigned long)ptr, 32);
+ return pointer_string(buf, end, (const void *)hashval, spec);
+ }
+
+ ret = __ptr_to_hashval(ptr, &hashval);
+ if (ret) {
+ spec.field_width = 2 * sizeof(ptr);
+ /* string length must be less than default_width */
+ return string(buf, end, str, spec);
+ }
+
return pointer_string(buf, end, (const void *)hashval, spec);
}
diff --git a/mm/Kconfig b/mm/Kconfig
index b457e94..036466b 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -614,6 +614,22 @@
information to userspace via debugfs.
If unsure, say N.
+config MM_EVENT_STAT
+ bool "Track per-process MM event"
+ depends on MMU
+ help
+ This option enables per-process mm event stat(e.g., fault, reclaim,
+ compaction and so on ) with some interval(Default is 0.5sec).
+ Admin can see the stat from trace file via debugfs(e.g.,
+ /sys/kernel/debug/tracing/trace)
+
+ It includes max/average memory allocation latency for the interval
+ as well as event count so that admin can see what happens in VM side
+ (how many each event happens and how much processes spent time for
+ the MM event). If it's too large, that would be not good situation.
+
+ System can dump the trace into bugreport when user allows the dump.
+
config GENERIC_EARLY_IOREMAP
bool
diff --git a/mm/Makefile b/mm/Makefile
index 26ef77a..6072756 100644
--- a/mm/Makefile
+++ b/mm/Makefile
@@ -28,6 +28,9 @@
rmap.o vmalloc.o
+ifdef CONFIG_MM_EVENT_STAT
+mmu-$(CONFIG_MMU) += mm_event.o
+endif
ifdef CONFIG_CROSS_MEMORY_ATTACH
mmu-$(CONFIG_MMU) += process_vm_access.o
endif
diff --git a/mm/OWNERS b/mm/OWNERS
new file mode 100644
index 0000000..f89766e
--- /dev/null
+++ b/mm/OWNERS
@@ -0,0 +1,2 @@
+# include OWNERS from the authoritative android-mainline branch
+include kernel/common:android-mainline:/mm/OWNERS
diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index 1d37c80..8501b03 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -880,8 +880,7 @@ int bdi_register_va(struct backing_dev_info *bdi, const char *fmt, va_list args)
if (bdi->dev) /* The driver needs to use separate queues per device */
return 0;
- vsnprintf(bdi->dev_name, sizeof(bdi->dev_name), fmt, args);
- dev = device_create(bdi_class, NULL, MKDEV(0, 0), bdi, bdi->dev_name);
+ dev = device_create_vargs(bdi_class, NULL, MKDEV(0, 0), bdi, fmt, args);
if (IS_ERR(dev))
return PTR_ERR(dev);
@@ -981,7 +980,7 @@ const char *bdi_dev_name(struct backing_dev_info *bdi)
{
if (!bdi || !bdi->dev)
return bdi_unknown_name;
- return bdi->dev_name;
+ return dev_name(bdi->dev);
}
EXPORT_SYMBOL_GPL(bdi_dev_name);
diff --git a/mm/cma.c b/mm/cma.c
index 4c28642..e2b95d4 100644
--- a/mm/cma.c
+++ b/mm/cma.c
@@ -48,16 +48,19 @@ phys_addr_t cma_get_base(const struct cma *cma)
{
return PFN_PHYS(cma->base_pfn);
}
+EXPORT_SYMBOL(cma_get_base);
unsigned long cma_get_size(const struct cma *cma)
{
return cma->count << PAGE_SHIFT;
}
+EXPORT_SYMBOL(cma_get_size);
const char *cma_get_name(const struct cma *cma)
{
return cma->name ? cma->name : "(undefined)";
}
+EXPORT_SYMBOL_GPL(cma_get_name);
static unsigned long cma_bitmap_aligned_mask(const struct cma *cma,
unsigned int align_order)
@@ -427,6 +430,7 @@ struct page *cma_alloc(struct cma *cma, size_t count, unsigned int align,
unsigned long pfn = -1;
unsigned long start = 0;
unsigned long bitmap_maxno, bitmap_no, bitmap_count;
+ size_t i;
struct page *page = NULL;
int ret = -ENOMEM;
@@ -486,6 +490,16 @@ struct page *cma_alloc(struct cma *cma, size_t count, unsigned int align,
trace_cma_alloc(pfn, page, count, align);
+ /*
+ * CMA can allocate multiple page blocks, which results in different
+ * blocks being marked with different tags. Reset the tags to ignore
+ * those page blocks.
+ */
+ if (page) {
+ for (i = 0; i < count; i++)
+ page_kasan_tag_reset(page + i);
+ }
+
if (ret && !no_warn) {
pr_err("%s: alloc failed, req-size: %zu pages, ret: %d\n",
__func__, count, ret);
@@ -495,6 +509,7 @@ struct page *cma_alloc(struct cma *cma, size_t count, unsigned int align,
pr_debug("%s(): returned %p\n", __func__, page);
return page;
}
+EXPORT_SYMBOL_GPL(cma_alloc);
/**
* cma_release() - release allocated pages
@@ -528,6 +543,7 @@ bool cma_release(struct cma *cma, const struct page *pages, unsigned int count)
return true;
}
+EXPORT_SYMBOL_GPL(cma_release);
int cma_for_each_area(int (*it)(struct cma *cma, void *data), void *data)
{
@@ -542,3 +558,4 @@ int cma_for_each_area(int (*it)(struct cma *cma, void *data), void *data)
return 0;
}
+EXPORT_SYMBOL_GPL(cma_for_each_area);
diff --git a/mm/compaction.c b/mm/compaction.c
index 5079ddb..120e555 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -22,6 +22,7 @@
#include <linux/kthread.h>
#include <linux/freezer.h>
#include <linux/page_owner.h>
+#include <linux/psi.h>
#include "internal.h"
#ifdef CONFIG_COMPACTION
@@ -2059,11 +2060,15 @@ static int kcompactd(void *p)
pgdat->kcompactd_classzone_idx = pgdat->nr_zones - 1;
while (!kthread_should_stop()) {
+ unsigned long pflags;
+
trace_mm_compaction_kcompactd_sleep(pgdat->node_id);
wait_event_freezable(pgdat->kcompactd_wait,
kcompactd_work_requested(pgdat));
+ psi_memstall_enter(&pflags);
kcompactd_do_work(pgdat);
+ psi_memstall_leave(&pflags);
}
return 0;
diff --git a/mm/dmapool.c b/mm/dmapool.c
index 6d4b97e..d46b14e 100644
--- a/mm/dmapool.c
+++ b/mm/dmapool.c
@@ -379,7 +379,7 @@ void *dma_pool_alloc(struct dma_pool *pool, gfp_t mem_flags,
#endif
spin_unlock_irqrestore(&pool->lock, flags);
- if (mem_flags & __GFP_ZERO)
+ if (want_init_on_alloc(mem_flags))
memset(retval, 0, pool->size);
return retval;
@@ -429,6 +429,8 @@ void dma_pool_free(struct dma_pool *pool, void *vaddr, dma_addr_t dma)
}
offset = vaddr - page->vaddr;
+ if (want_init_on_free())
+ memset(vaddr, 0, pool->size);
#ifdef DMAPOOL_DEBUG
if ((dma - page->dma) != offset) {
spin_unlock_irqrestore(&pool->lock, flags);
diff --git a/mm/filemap.c b/mm/filemap.c
index f2e7770..9bf5437 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -36,6 +36,8 @@
#include <linux/cleancache.h>
#include <linux/shmem_fs.h>
#include <linux/rmap.h>
+#include <linux/delayacct.h>
+#include <linux/psi.h>
#include "internal.h"
#define CREATE_TRACE_POINTS
@@ -192,10 +194,12 @@ static void unaccount_page_cache_page(struct address_space *mapping,
* invalidate any existing cleancache entries. We can't leave
* stale data around in the cleancache once our page is gone
*/
- if (PageUptodate(page) && PageMappedToDisk(page))
+ if (PageUptodate(page) && PageMappedToDisk(page)) {
+ count_vm_event(PGPGOUTCLEAN);
cleancache_put_page(page);
- else
+ } else {
cleancache_invalidate_page(mapping, page);
+ }
VM_BUG_ON_PAGE(PageTail(page), page);
VM_BUG_ON_PAGE(page_mapped(page), page);
@@ -938,12 +942,9 @@ int add_to_page_cache_lru(struct page *page, struct address_space *mapping,
* data from the working set, only to cache data that will
* get overwritten with something else, is a waste of memory.
*/
- if (!(gfp_mask & __GFP_WRITE) &&
- shadow && workingset_refault(shadow)) {
- SetPageActive(page);
- workingset_activation(page);
- } else
- ClearPageActive(page);
+ WARN_ON_ONCE(PageActive(page));
+ if (!(gfp_mask & __GFP_WRITE) && shadow)
+ workingset_refault(page, shadow);
lru_cache_add(page);
}
return ret;
@@ -1094,13 +1095,23 @@ static void wake_up_page(struct page *page, int bit)
wake_up_page_bit(page, bit);
}
-static inline int wait_on_page_bit_common(wait_queue_head_t *q,
+static inline __sched int wait_on_page_bit_common(wait_queue_head_t *q,
struct page *page, int bit_nr, int state, bool lock)
{
struct wait_page_queue wait_page;
wait_queue_entry_t *wait = &wait_page.wait;
+ bool thrashing = false;
+ unsigned long pflags;
int ret = 0;
+ if (bit_nr == PG_locked &&
+ !PageUptodate(page) && PageWorkingset(page)) {
+ if (!PageSwapBacked(page))
+ delayacct_thrashing_start();
+ psi_memstall_enter(&pflags);
+ thrashing = true;
+ }
+
init_wait(wait);
wait->flags = lock ? WQ_FLAG_EXCLUSIVE : 0;
wait->func = wake_page_function;
@@ -1139,6 +1150,12 @@ static inline int wait_on_page_bit_common(wait_queue_head_t *q,
finish_wait(q, wait);
+ if (thrashing) {
+ if (!PageSwapBacked(page))
+ delayacct_thrashing_end();
+ psi_memstall_leave(&pflags);
+ }
+
/*
* A signal could leave PageWaiters set. Clearing it here if
* !waitqueue_active would be possible (by open-coding finish_wait),
@@ -1150,14 +1167,14 @@ static inline int wait_on_page_bit_common(wait_queue_head_t *q,
return ret;
}
-void wait_on_page_bit(struct page *page, int bit_nr)
+void __sched wait_on_page_bit(struct page *page, int bit_nr)
{
wait_queue_head_t *q = page_waitqueue(page);
wait_on_page_bit_common(q, page, bit_nr, TASK_UNINTERRUPTIBLE, false);
}
EXPORT_SYMBOL(wait_on_page_bit);
-int wait_on_page_bit_killable(struct page *page, int bit_nr)
+int __sched wait_on_page_bit_killable(struct page *page, int bit_nr)
{
wait_queue_head_t *q = page_waitqueue(page);
return wait_on_page_bit_common(q, page, bit_nr, TASK_KILLABLE, false);
@@ -1289,7 +1306,7 @@ EXPORT_SYMBOL_GPL(page_endio);
* __lock_page - get a lock on the page, assuming we need to sleep to get it
* @__page: the page to lock
*/
-void __lock_page(struct page *__page)
+void __sched __lock_page(struct page *__page)
{
struct page *page = compound_head(__page);
wait_queue_head_t *q = page_waitqueue(page);
@@ -1297,7 +1314,7 @@ void __lock_page(struct page *__page)
}
EXPORT_SYMBOL(__lock_page);
-int __lock_page_killable(struct page *__page)
+int __sched __lock_page_killable(struct page *__page)
{
struct page *page = compound_head(__page);
wait_queue_head_t *q = page_waitqueue(page);
@@ -1316,7 +1333,7 @@ EXPORT_SYMBOL_GPL(__lock_page_killable);
* If neither ALLOW_RETRY nor KILLABLE are set, will always return 1
* with the page locked and the mmap_sem unperturbed.
*/
-int __lock_page_or_retry(struct page *page, struct mm_struct *mm,
+int __sched __lock_page_or_retry(struct page *page, struct mm_struct *mm,
unsigned int flags)
{
if (flags & FAULT_FLAG_ALLOW_RETRY) {
@@ -1548,7 +1565,10 @@ EXPORT_SYMBOL(find_lock_entry);
* - FGP_CREAT: If page is not present then a new page is allocated using
* @gfp_mask and added to the page cache and the VM's LRU
* list. The page is returned locked and with an increased
- * refcount. Otherwise, NULL is returned.
+ * refcount.
+ * - FGP_FOR_MMAP: Similar to FGP_CREAT, only we want to allow the caller to do
+ * its own locking dance if the page is already in cache, or unlock the page
+ * before returning if we had to add the page to pagecache.
*
* If FGP_LOCK or FGP_CREAT are specified then the function may sleep even
* if the GFP flags specified for FGP_CREAT are atomic.
@@ -1601,7 +1621,7 @@ struct page *pagecache_get_page(struct address_space *mapping, pgoff_t offset,
if (!page)
return NULL;
- if (WARN_ON_ONCE(!(fgp_flags & FGP_LOCK)))
+ if (WARN_ON_ONCE(!(fgp_flags & (FGP_LOCK | FGP_FOR_MMAP))))
fgp_flags |= FGP_LOCK;
/* Init accessed so avoid atomic mark_page_accessed later */
@@ -1615,6 +1635,13 @@ struct page *pagecache_get_page(struct address_space *mapping, pgoff_t offset,
if (err == -EEXIST)
goto repeat;
}
+
+ /*
+ * add_to_page_cache_lru locks the page, and for mmap we expect
+ * an unlocked page.
+ */
+ if (page && (fgp_flags & FGP_FOR_MMAP))
+ unlock_page(page);
}
return page;
@@ -2389,62 +2416,98 @@ generic_file_read_iter(struct kiocb *iocb, struct iov_iter *iter)
EXPORT_SYMBOL(generic_file_read_iter);
#ifdef CONFIG_MMU
-/**
- * page_cache_read - adds requested page to the page cache if not already there
- * @file: file to read
- * @offset: page index
- * @gfp_mask: memory allocation flags
- *
- * This adds the requested page to the page cache if it isn't already there,
- * and schedules an I/O to read in its contents from disk.
- */
-static int page_cache_read(struct file *file, pgoff_t offset, gfp_t gfp_mask)
+#define MMAP_LOTSAMISS (100)
+static struct file *maybe_unlock_mmap_for_io(struct vm_fault *vmf,
+ struct file *fpin)
{
- struct address_space *mapping = file->f_mapping;
- struct page *page;
- int ret;
+ int flags = vmf->flags;
- do {
- page = __page_cache_alloc(gfp_mask);
- if (!page)
- return -ENOMEM;
+ if (fpin)
+ return fpin;
- ret = add_to_page_cache_lru(page, mapping, offset, gfp_mask);
- if (ret == 0)
- ret = mapping->a_ops->readpage(file, page);
- else if (ret == -EEXIST)
- ret = 0; /* losing race to add is OK */
-
- put_page(page);
-
- } while (ret == AOP_TRUNCATED_PAGE);
-
- return ret;
+ /*
+ * FAULT_FLAG_RETRY_NOWAIT means we don't want to wait on page locks or
+ * anything, so we only pin the file and drop the mmap_sem if only
+ * FAULT_FLAG_ALLOW_RETRY is set.
+ */
+ if ((flags & (FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_RETRY_NOWAIT)) ==
+ FAULT_FLAG_ALLOW_RETRY) {
+ fpin = get_file(vmf->vma->vm_file);
+ up_read(&vmf->vma->vm_mm->mmap_sem);
+ }
+ return fpin;
}
-#define MMAP_LOTSAMISS (100)
+/*
+ * lock_page_maybe_drop_mmap - lock the page, possibly dropping the mmap_sem
+ * @vmf - the vm_fault for this fault.
+ * @page - the page to lock.
+ * @fpin - the pointer to the file we may pin (or is already pinned).
+ *
+ * This works similar to lock_page_or_retry in that it can drop the mmap_sem.
+ * It differs in that it actually returns the page locked if it returns 1 and 0
+ * if it couldn't lock the page. If we did have to drop the mmap_sem then fpin
+ * will point to the pinned file and needs to be fput()'ed at a later point.
+ */
+static int lock_page_maybe_drop_mmap(struct vm_fault *vmf, struct page *page,
+ struct file **fpin)
+{
+ if (trylock_page(page))
+ return 1;
+
+ /*
+ * NOTE! This will make us return with VM_FAULT_RETRY, but with
+ * the mmap_sem still held. That's how FAULT_FLAG_RETRY_NOWAIT
+ * is supposed to work. We have way too many special cases..
+ */
+ if (vmf->flags & FAULT_FLAG_RETRY_NOWAIT)
+ return 0;
+
+ *fpin = maybe_unlock_mmap_for_io(vmf, *fpin);
+ if (vmf->flags & FAULT_FLAG_KILLABLE) {
+ if (__lock_page_killable(page)) {
+ /*
+ * We didn't have the right flags to drop the mmap_sem,
+ * but all fault_handlers only check for fatal signals
+ * if we return VM_FAULT_RETRY, so we need to drop the
+ * mmap_sem here and return 0 if we don't have a fpin.
+ */
+ if (*fpin == NULL)
+ up_read(&vmf->vma->vm_mm->mmap_sem);
+ return 0;
+ }
+ } else
+ __lock_page(page);
+ return 1;
+}
+
/*
- * Synchronous readahead happens when we don't even find
- * a page in the page cache at all.
+ * Synchronous readahead happens when we don't even find a page in the page
+ * cache at all. We don't want to perform IO under the mmap sem, so if we have
+ * to drop the mmap sem we return the file that was pinned in order for us to do
+ * that. If we didn't pin a file then we return NULL. The file that is
+ * returned needs to be fput()'ed when we're done with it.
*/
-static void do_sync_mmap_readahead(struct vm_area_struct *vma,
- struct file_ra_state *ra,
- struct file *file,
- pgoff_t offset)
+static struct file *do_sync_mmap_readahead(struct vm_fault *vmf)
{
+ struct file *file = vmf->vma->vm_file;
+ struct file_ra_state *ra = &file->f_ra;
struct address_space *mapping = file->f_mapping;
+ struct file *fpin = NULL;
+ pgoff_t offset = vmf->pgoff;
/* If we don't want any read-ahead, don't bother */
- if (vma->vm_flags & VM_RAND_READ)
- return;
+ if (vmf->vma->vm_flags & VM_RAND_READ)
+ return fpin;
if (!ra->ra_pages)
- return;
+ return fpin;
- if (vma->vm_flags & VM_SEQ_READ) {
+ if (vmf->vma->vm_flags & VM_SEQ_READ) {
+ fpin = maybe_unlock_mmap_for_io(vmf, fpin);
page_cache_sync_readahead(mapping, ra, file, offset,
ra->ra_pages);
- return;
+ return fpin;
}
/* Avoid banging the cache line if not needed */
@@ -2456,37 +2519,44 @@ static void do_sync_mmap_readahead(struct vm_area_struct *vma,
* stop bothering with read-ahead. It will only hurt.
*/
if (ra->mmap_miss > MMAP_LOTSAMISS)
- return;
+ return fpin;
/*
* mmap read-around
*/
+ fpin = maybe_unlock_mmap_for_io(vmf, fpin);
ra->start = max_t(long, 0, offset - ra->ra_pages / 2);
ra->size = ra->ra_pages;
ra->async_size = ra->ra_pages / 4;
ra_submit(ra, mapping, file);
+ return fpin;
}
/*
* Asynchronous readahead happens when we find the page and PG_readahead,
- * so we want to possibly extend the readahead further..
+ * so we want to possibly extend the readahead further. We return the file that
+ * was pinned if we have to drop the mmap_sem in order to do IO.
*/
-static void do_async_mmap_readahead(struct vm_area_struct *vma,
- struct file_ra_state *ra,
- struct file *file,
- struct page *page,
- pgoff_t offset)
+static struct file *do_async_mmap_readahead(struct vm_fault *vmf,
+ struct page *page)
{
+ struct file *file = vmf->vma->vm_file;
+ struct file_ra_state *ra = &file->f_ra;
struct address_space *mapping = file->f_mapping;
+ struct file *fpin = NULL;
+ pgoff_t offset = vmf->pgoff;
/* If we don't want any read-ahead, don't bother */
- if (vma->vm_flags & VM_RAND_READ)
- return;
+ if (vmf->vma->vm_flags & VM_RAND_READ || !ra->ra_pages)
+ return fpin;
if (ra->mmap_miss > 0)
ra->mmap_miss--;
- if (PageReadahead(page))
+ if (PageReadahead(page)) {
+ fpin = maybe_unlock_mmap_for_io(vmf, fpin);
page_cache_async_readahead(mapping, ra, file,
page, offset, ra->ra_pages);
+ }
+ return fpin;
}
/**
@@ -2516,6 +2586,7 @@ vm_fault_t filemap_fault(struct vm_fault *vmf)
{
int error;
struct file *file = vmf->vma->vm_file;
+ struct file *fpin = NULL;
struct address_space *mapping = file->f_mapping;
struct file_ra_state *ra = &file->f_ra;
struct inode *inode = mapping->host;
@@ -2537,23 +2608,26 @@ vm_fault_t filemap_fault(struct vm_fault *vmf)
* We found the page, so try async readahead before
* waiting for the lock.
*/
- do_async_mmap_readahead(vmf->vma, ra, file, page, offset);
+ fpin = do_async_mmap_readahead(vmf, page);
} else if (!page) {
/* No page in the page cache at all */
- do_sync_mmap_readahead(vmf->vma, ra, file, offset);
count_vm_event(PGMAJFAULT);
count_memcg_event_mm(vmf->vma->vm_mm, PGMAJFAULT);
ret = VM_FAULT_MAJOR;
+ fpin = do_sync_mmap_readahead(vmf);
retry_find:
- page = find_get_page(mapping, offset);
- if (!page)
- goto no_cached_page;
+ page = pagecache_get_page(mapping, offset,
+ FGP_CREAT|FGP_FOR_MMAP,
+ vmf->gfp_mask);
+ if (!page) {
+ if (fpin)
+ goto out_retry;
+ return VM_FAULT_OOM;
+ }
}
- if (!lock_page_or_retry(page, vmf->vma->vm_mm, vmf->flags)) {
- put_page(page);
- return ret | VM_FAULT_RETRY;
- }
+ if (!lock_page_maybe_drop_mmap(vmf, page, &fpin))
+ goto out_retry;
/* Did it get truncated? */
if (unlikely(page->mapping != mapping)) {
@@ -2571,6 +2645,16 @@ vm_fault_t filemap_fault(struct vm_fault *vmf)
goto page_not_uptodate;
/*
+ * We've made it this far and we had to drop our mmap_sem, now is the
+ * time to return to the upper layer and have it re-find the vma and
+ * redo the fault.
+ */
+ if (fpin) {
+ unlock_page(page);
+ goto out_retry;
+ }
+
+ /*
* Found the page and have a reference on it.
* We must recheck i_size under page lock.
*/
@@ -2584,30 +2668,6 @@ vm_fault_t filemap_fault(struct vm_fault *vmf)
vmf->page = page;
return ret | VM_FAULT_LOCKED;
-no_cached_page:
- /*
- * We're only likely to ever get here if MADV_RANDOM is in
- * effect.
- */
- error = page_cache_read(file, offset, vmf->gfp_mask);
-
- /*
- * The page we want has now been added to the page cache.
- * In the unlikely event that someone removed it in the
- * meantime, we'll just come back here and read it again.
- */
- if (error >= 0)
- goto retry_find;
-
- /*
- * An error return from page_cache_read can result if the
- * system is low on memory, or a problem occurs while trying
- * to schedule I/O.
- */
- if (error == -ENOMEM)
- return VM_FAULT_OOM;
- return VM_FAULT_SIGBUS;
-
page_not_uptodate:
/*
* Umm, take care of errors if the page isn't up-to-date.
@@ -2616,12 +2676,15 @@ vm_fault_t filemap_fault(struct vm_fault *vmf)
* and we need to check for errors.
*/
ClearPageError(page);
+ fpin = maybe_unlock_mmap_for_io(vmf, fpin);
error = mapping->a_ops->readpage(file, page);
if (!error) {
wait_on_page_locked(page);
if (!PageUptodate(page))
error = -EIO;
}
+ if (fpin)
+ goto out_retry;
put_page(page);
if (!error || error == AOP_TRUNCATED_PAGE)
@@ -2630,6 +2693,18 @@ vm_fault_t filemap_fault(struct vm_fault *vmf)
/* Things didn't work out. Return zero to tell the mm layer so. */
shrink_readahead_size_eio(file, ra);
return VM_FAULT_SIGBUS;
+
+out_retry:
+ /*
+ * We dropped the mmap_sem, we need to return to the fault handler to
+ * re-find the vma and come back and find our hopefully still populated
+ * page.
+ */
+ if (page)
+ put_page(page);
+ if (fpin)
+ fput(fpin);
+ return ret | VM_FAULT_RETRY;
}
EXPORT_SYMBOL(filemap_fault);
@@ -2825,7 +2900,11 @@ static struct page *do_read_cache_page(struct address_space *mapping,
}
filler:
- err = filler(data, page);
+ if (filler)
+ err = filler(data, page);
+ else
+ err = mapping->a_ops->readpage(data, page);
+
if (err < 0) {
put_page(page);
return ERR_PTR(err);
@@ -2940,9 +3019,7 @@ struct page *read_cache_page_gfp(struct address_space *mapping,
pgoff_t index,
gfp_t gfp)
{
- filler_t *filler = (filler_t *)mapping->a_ops->readpage;
-
- return do_read_cache_page(mapping, index, filler, NULL, gfp);
+ return do_read_cache_page(mapping, index, NULL, NULL, gfp);
}
EXPORT_SYMBOL(read_cache_page_gfp);
@@ -2960,6 +3037,9 @@ inline ssize_t generic_write_checks(struct kiocb *iocb, struct iov_iter *from)
unsigned long limit = rlimit(RLIMIT_FSIZE);
loff_t pos;
+ if (IS_SWAPFILE(inode))
+ return -ETXTBSY;
+
if (!iov_iter_count(from))
return 0;
diff --git a/mm/frame_vector.c b/mm/frame_vector.c
index c64dca6..c431ca8 100644
--- a/mm/frame_vector.c
+++ b/mm/frame_vector.c
@@ -46,6 +46,8 @@ int get_vaddr_frames(unsigned long start, unsigned int nr_frames,
if (WARN_ON_ONCE(nr_frames > vec->nr_allocated))
nr_frames = vec->nr_allocated;
+ start = untagged_addr(start);
+
down_read(&mm->mmap_sem);
locked = 1;
vma = find_vma_intersection(mm, start, start + 1);
diff --git a/mm/gup.c b/mm/gup.c
index 4456992..216253a 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -687,6 +687,8 @@ static long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
if (!nr_pages)
return 0;
+ start = untagged_addr(start);
+
VM_BUG_ON(!!pages != !!(gup_flags & FOLL_GET));
/*
@@ -847,6 +849,8 @@ int fixup_user_fault(struct task_struct *tsk, struct mm_struct *mm,
struct vm_area_struct *vma;
vm_fault_t ret, major = 0;
+ address = untagged_addr(address);
+
if (unlocked)
fault_flags |= FAULT_FLAG_ALLOW_RETRY;
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 800d7de..f79002a 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2474,6 +2474,7 @@ static void __split_huge_page_tail(struct page *head, int tail,
(1L << PG_mlocked) |
(1L << PG_uptodate) |
(1L << PG_active) |
+ (1L << PG_workingset) |
(1L << PG_locked) |
(1L << PG_unevictable) |
(1L << PG_dirty)));
diff --git a/mm/kasan/Makefile b/mm/kasan/Makefile
index 3289db3..613dfe6 100644
--- a/mm/kasan/Makefile
+++ b/mm/kasan/Makefile
@@ -1,11 +1,24 @@
# SPDX-License-Identifier: GPL-2.0
KASAN_SANITIZE := n
-UBSAN_SANITIZE_kasan.o := n
+UBSAN_SANITIZE_common.o := n
+UBSAN_SANITIZE_generic.o := n
+UBSAN_SANITIZE_generic_report.o := n
+UBSAN_SANITIZE_tags.o := n
KCOV_INSTRUMENT := n
-CFLAGS_REMOVE_kasan.o = -pg
+CFLAGS_REMOVE_common.o = -pg
+CFLAGS_REMOVE_generic.o = -pg
+CFLAGS_REMOVE_generic_report.o = -pg
+CFLAGS_REMOVE_tags.o = -pg
+
# Function splitter causes unnecessary splits in __asan_load1/__asan_store1
# see: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63533
-CFLAGS_kasan.o := $(call cc-option, -fno-conserve-stack -fno-stack-protector)
-obj-y := kasan.o report.o kasan_init.o quarantine.o
+CFLAGS_common.o := $(call cc-option, -fno-conserve-stack -fno-stack-protector)
+CFLAGS_generic.o := $(call cc-option, -fno-conserve-stack -fno-stack-protector)
+CFLAGS_generic_report.o := $(call cc-option, -fno-conserve-stack -fno-stack-protector)
+CFLAGS_tags.o := $(call cc-option, -fno-conserve-stack -fno-stack-protector)
+
+obj-$(CONFIG_KASAN) := common.o init.o report.o
+obj-$(CONFIG_KASAN_GENERIC) += generic.o generic_report.o quarantine.o
+obj-$(CONFIG_KASAN_SW_TAGS) += tags.o tags_report.o
diff --git a/mm/kasan/common.c b/mm/kasan/common.c
new file mode 100644
index 0000000..ef1b30a
--- /dev/null
+++ b/mm/kasan/common.c
@@ -0,0 +1,741 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * This file contains common generic and tag-based KASAN code.
+ *
+ * Copyright (c) 2014 Samsung Electronics Co., Ltd.
+ * Author: Andrey Ryabinin <ryabinin.a.a@gmail.com>
+ *
+ * Some code borrowed from https://github.com/xairy/kasan-prototype by
+ * Andrey Konovalov <andreyknvl@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#define __KASAN_INTERNAL
+
+#include <linux/export.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/kasan.h>
+#include <linux/kernel.h>
+#include <linux/kmemleak.h>
+#include <linux/linkage.h>
+#include <linux/memblock.h>
+#include <linux/memory.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/printk.h>
+#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
+#include <linux/slab.h>
+#include <linux/stacktrace.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/vmalloc.h>
+#include <linux/bug.h>
+#include <linux/uaccess.h>
+
+#include "kasan.h"
+#include "../slab.h"
+
+static inline int in_irqentry_text(unsigned long ptr)
+{
+ return (ptr >= (unsigned long)&__irqentry_text_start &&
+ ptr < (unsigned long)&__irqentry_text_end) ||
+ (ptr >= (unsigned long)&__softirqentry_text_start &&
+ ptr < (unsigned long)&__softirqentry_text_end);
+}
+
+static inline void filter_irq_stacks(struct stack_trace *trace)
+{
+ int i;
+
+ if (!trace->nr_entries)
+ return;
+ for (i = 0; i < trace->nr_entries; i++)
+ if (in_irqentry_text(trace->entries[i])) {
+ /* Include the irqentry function into the stack. */
+ trace->nr_entries = i + 1;
+ break;
+ }
+}
+
+static inline depot_stack_handle_t save_stack(gfp_t flags)
+{
+ unsigned long entries[KASAN_STACK_DEPTH];
+ struct stack_trace trace = {
+ .nr_entries = 0,
+ .entries = entries,
+ .max_entries = KASAN_STACK_DEPTH,
+ .skip = 0
+ };
+
+ save_stack_trace(&trace);
+ filter_irq_stacks(&trace);
+ if (trace.nr_entries != 0 &&
+ trace.entries[trace.nr_entries-1] == ULONG_MAX)
+ trace.nr_entries--;
+
+ return depot_save_stack(&trace, flags);
+}
+
+static inline void set_track(struct kasan_track *track, gfp_t flags)
+{
+ track->pid = current->pid;
+ track->stack = save_stack(flags);
+}
+
+void kasan_enable_current(void)
+{
+ current->kasan_depth++;
+}
+
+void kasan_disable_current(void)
+{
+ current->kasan_depth--;
+}
+
+void kasan_check_read(const volatile void *p, unsigned int size)
+{
+ check_memory_region((unsigned long)p, size, false, _RET_IP_);
+}
+EXPORT_SYMBOL(kasan_check_read);
+
+void kasan_check_write(const volatile void *p, unsigned int size)
+{
+ check_memory_region((unsigned long)p, size, true, _RET_IP_);
+}
+EXPORT_SYMBOL(kasan_check_write);
+
+#undef memset
+void *memset(void *addr, int c, size_t len)
+{
+ check_memory_region((unsigned long)addr, len, true, _RET_IP_);
+
+ return __memset(addr, c, len);
+}
+
+#undef memmove
+void *memmove(void *dest, const void *src, size_t len)
+{
+ check_memory_region((unsigned long)src, len, false, _RET_IP_);
+ check_memory_region((unsigned long)dest, len, true, _RET_IP_);
+
+ return __memmove(dest, src, len);
+}
+
+#undef memcpy
+void *memcpy(void *dest, const void *src, size_t len)
+{
+ check_memory_region((unsigned long)src, len, false, _RET_IP_);
+ check_memory_region((unsigned long)dest, len, true, _RET_IP_);
+
+ return __memcpy(dest, src, len);
+}
+
+/*
+ * Poisons the shadow memory for 'size' bytes starting from 'addr'.
+ * Memory addresses should be aligned to KASAN_SHADOW_SCALE_SIZE.
+ */
+void kasan_poison_shadow(const void *address, size_t size, u8 value)
+{
+ void *shadow_start, *shadow_end;
+
+ /*
+ * Perform shadow offset calculation based on untagged address, as
+ * some of the callers (e.g. kasan_poison_object_data) pass tagged
+ * addresses to this function.
+ */
+ address = reset_tag(address);
+
+ shadow_start = kasan_mem_to_shadow(address);
+ shadow_end = kasan_mem_to_shadow(address + size);
+
+ __memset(shadow_start, value, shadow_end - shadow_start);
+}
+
+void kasan_unpoison_shadow(const void *address, size_t size)
+{
+ u8 tag = get_tag(address);
+
+ /*
+ * Perform shadow offset calculation based on untagged address, as
+ * some of the callers (e.g. kasan_unpoison_object_data) pass tagged
+ * addresses to this function.
+ */
+ address = reset_tag(address);
+
+ kasan_poison_shadow(address, size, tag);
+
+ if (size & KASAN_SHADOW_MASK) {
+ u8 *shadow = (u8 *)kasan_mem_to_shadow(address + size);
+
+ if (IS_ENABLED(CONFIG_KASAN_SW_TAGS))
+ *shadow = tag;
+ else
+ *shadow = size & KASAN_SHADOW_MASK;
+ }
+}
+
+static void __kasan_unpoison_stack(struct task_struct *task, const void *sp)
+{
+ void *base = task_stack_page(task);
+ size_t size = sp - base;
+
+ kasan_unpoison_shadow(base, size);
+}
+
+/* Unpoison the entire stack for a task. */
+void kasan_unpoison_task_stack(struct task_struct *task)
+{
+ __kasan_unpoison_stack(task, task_stack_page(task) + THREAD_SIZE);
+}
+
+/* Unpoison the stack for the current task beyond a watermark sp value. */
+asmlinkage void kasan_unpoison_task_stack_below(const void *watermark)
+{
+ /*
+ * Calculate the task stack base address. Avoid using 'current'
+ * because this function is called by early resume code which hasn't
+ * yet set up the percpu register (%gs).
+ */
+ void *base = (void *)((unsigned long)watermark & ~(THREAD_SIZE - 1));
+
+ kasan_unpoison_shadow(base, watermark - base);
+}
+
+/*
+ * Clear all poison for the region between the current SP and a provided
+ * watermark value, as is sometimes required prior to hand-crafted asm function
+ * returns in the middle of functions.
+ */
+void kasan_unpoison_stack_above_sp_to(const void *watermark)
+{
+ const void *sp = __builtin_frame_address(0);
+ size_t size = watermark - sp;
+
+ if (WARN_ON(sp > watermark))
+ return;
+ kasan_unpoison_shadow(sp, size);
+}
+
+void kasan_alloc_pages(struct page *page, unsigned int order)
+{
+ u8 tag;
+ unsigned long i;
+
+ if (unlikely(PageHighMem(page)))
+ return;
+
+ tag = random_tag();
+ for (i = 0; i < (1 << order); i++)
+ page_kasan_tag_set(page + i, tag);
+ kasan_unpoison_shadow(page_address(page), PAGE_SIZE << order);
+}
+
+void kasan_free_pages(struct page *page, unsigned int order)
+{
+ if (likely(!PageHighMem(page)))
+ kasan_poison_shadow(page_address(page),
+ PAGE_SIZE << order,
+ KASAN_FREE_PAGE);
+}
+
+/*
+ * Adaptive redzone policy taken from the userspace AddressSanitizer runtime.
+ * For larger allocations larger redzones are used.
+ */
+static inline unsigned int optimal_redzone(unsigned int object_size)
+{
+ if (IS_ENABLED(CONFIG_KASAN_SW_TAGS))
+ return 0;
+
+ return
+ object_size <= 64 - 16 ? 16 :
+ object_size <= 128 - 32 ? 32 :
+ object_size <= 512 - 64 ? 64 :
+ object_size <= 4096 - 128 ? 128 :
+ object_size <= (1 << 14) - 256 ? 256 :
+ object_size <= (1 << 15) - 512 ? 512 :
+ object_size <= (1 << 16) - 1024 ? 1024 : 2048;
+}
+
+void kasan_cache_create(struct kmem_cache *cache, unsigned int *size,
+ slab_flags_t *flags)
+{
+ unsigned int orig_size = *size;
+ unsigned int redzone_size;
+ int redzone_adjust;
+
+ /* Add alloc meta. */
+ cache->kasan_info.alloc_meta_offset = *size;
+ *size += sizeof(struct kasan_alloc_meta);
+
+ /* Add free meta. */
+ if (IS_ENABLED(CONFIG_KASAN_GENERIC) &&
+ (cache->flags & SLAB_TYPESAFE_BY_RCU || cache->ctor ||
+ cache->object_size < sizeof(struct kasan_free_meta))) {
+ cache->kasan_info.free_meta_offset = *size;
+ *size += sizeof(struct kasan_free_meta);
+ }
+
+ redzone_size = optimal_redzone(cache->object_size);
+ redzone_adjust = redzone_size - (*size - cache->object_size);
+ if (redzone_adjust > 0)
+ *size += redzone_adjust;
+
+ *size = min_t(unsigned int, KMALLOC_MAX_SIZE,
+ max(*size, cache->object_size + redzone_size));
+
+ /*
+ * If the metadata doesn't fit, don't enable KASAN at all.
+ */
+ if (*size <= cache->kasan_info.alloc_meta_offset ||
+ *size <= cache->kasan_info.free_meta_offset) {
+ cache->kasan_info.alloc_meta_offset = 0;
+ cache->kasan_info.free_meta_offset = 0;
+ *size = orig_size;
+ return;
+ }
+
+ *flags |= SLAB_KASAN;
+}
+
+size_t kasan_metadata_size(struct kmem_cache *cache)
+{
+ return (cache->kasan_info.alloc_meta_offset ?
+ sizeof(struct kasan_alloc_meta) : 0) +
+ (cache->kasan_info.free_meta_offset ?
+ sizeof(struct kasan_free_meta) : 0);
+}
+
+struct kasan_alloc_meta *get_alloc_info(struct kmem_cache *cache,
+ const void *object)
+{
+ BUILD_BUG_ON(sizeof(struct kasan_alloc_meta) > 32);
+ return (void *)object + cache->kasan_info.alloc_meta_offset;
+}
+
+struct kasan_free_meta *get_free_info(struct kmem_cache *cache,
+ const void *object)
+{
+ BUILD_BUG_ON(sizeof(struct kasan_free_meta) > 32);
+ return (void *)object + cache->kasan_info.free_meta_offset;
+}
+
+void kasan_poison_slab(struct page *page)
+{
+ unsigned long i;
+
+ for (i = 0; i < (1 << compound_order(page)); i++)
+ page_kasan_tag_reset(page + i);
+ kasan_poison_shadow(page_address(page),
+ PAGE_SIZE << compound_order(page),
+ KASAN_KMALLOC_REDZONE);
+}
+
+void kasan_unpoison_object_data(struct kmem_cache *cache, void *object)
+{
+ kasan_unpoison_shadow(object, cache->object_size);
+}
+
+void kasan_poison_object_data(struct kmem_cache *cache, void *object)
+{
+ kasan_poison_shadow(object,
+ round_up(cache->object_size, KASAN_SHADOW_SCALE_SIZE),
+ KASAN_KMALLOC_REDZONE);
+}
+
+/*
+ * This function assigns a tag to an object considering the following:
+ * 1. A cache might have a constructor, which might save a pointer to a slab
+ * object somewhere (e.g. in the object itself). We preassign a tag for
+ * each object in caches with constructors during slab creation and reuse
+ * the same tag each time a particular object is allocated.
+ * 2. A cache might be SLAB_TYPESAFE_BY_RCU, which means objects can be
+ * accessed after being freed. We preassign tags for objects in these
+ * caches as well.
+ * 3. For SLAB allocator we can't preassign tags randomly since the freelist
+ * is stored as an array of indexes instead of a linked list. Assign tags
+ * based on objects indexes, so that objects that are next to each other
+ * get different tags.
+ */
+static u8 assign_tag(struct kmem_cache *cache, const void *object,
+ bool init, bool keep_tag)
+{
+ /*
+ * 1. When an object is kmalloc()'ed, two hooks are called:
+ * kasan_slab_alloc() and kasan_kmalloc(). We assign the
+ * tag only in the first one.
+ * 2. We reuse the same tag for krealloc'ed objects.
+ */
+ if (keep_tag)
+ return get_tag(object);
+
+ /*
+ * If the cache neither has a constructor nor has SLAB_TYPESAFE_BY_RCU
+ * set, assign a tag when the object is being allocated (init == false).
+ */
+ if (!cache->ctor && !(cache->flags & SLAB_TYPESAFE_BY_RCU))
+ return init ? KASAN_TAG_KERNEL : random_tag();
+
+ /* For caches that either have a constructor or SLAB_TYPESAFE_BY_RCU: */
+#ifdef CONFIG_SLAB
+ /* For SLAB assign tags based on the object index in the freelist. */
+ return (u8)obj_to_index(cache, virt_to_page(object), (void *)object);
+#else
+ /*
+ * For SLUB assign a random tag during slab creation, otherwise reuse
+ * the already assigned tag.
+ */
+ return init ? random_tag() : get_tag(object);
+#endif
+}
+
+void * __must_check kasan_init_slab_obj(struct kmem_cache *cache,
+ const void *object)
+{
+ struct kasan_alloc_meta *alloc_info;
+
+ if (!(cache->flags & SLAB_KASAN))
+ return (void *)object;
+
+ alloc_info = get_alloc_info(cache, object);
+ __memset(alloc_info, 0, sizeof(*alloc_info));
+
+ if (IS_ENABLED(CONFIG_KASAN_SW_TAGS))
+ object = set_tag(object,
+ assign_tag(cache, object, true, false));
+
+ return (void *)object;
+}
+
+static inline bool shadow_invalid(u8 tag, s8 shadow_byte)
+{
+ if (IS_ENABLED(CONFIG_KASAN_GENERIC))
+ return shadow_byte < 0 ||
+ shadow_byte >= KASAN_SHADOW_SCALE_SIZE;
+
+ /* else CONFIG_KASAN_SW_TAGS: */
+ if ((u8)shadow_byte == KASAN_TAG_INVALID)
+ return true;
+ if ((tag != KASAN_TAG_KERNEL) && (tag != (u8)shadow_byte))
+ return true;
+
+ return false;
+}
+
+static bool __kasan_slab_free(struct kmem_cache *cache, void *object,
+ unsigned long ip, bool quarantine)
+{
+ s8 shadow_byte;
+ u8 tag;
+ void *tagged_object;
+ unsigned long rounded_up_size;
+
+ tag = get_tag(object);
+ tagged_object = object;
+ object = reset_tag(object);
+
+ if (unlikely(nearest_obj(cache, virt_to_head_page(object), object) !=
+ object)) {
+ kasan_report_invalid_free(tagged_object, ip);
+ return true;
+ }
+
+ /* RCU slabs could be legally used after free within the RCU period */
+ if (unlikely(cache->flags & SLAB_TYPESAFE_BY_RCU))
+ return false;
+
+ shadow_byte = READ_ONCE(*(s8 *)kasan_mem_to_shadow(object));
+ if (shadow_invalid(tag, shadow_byte)) {
+ kasan_report_invalid_free(tagged_object, ip);
+ return true;
+ }
+
+ rounded_up_size = round_up(cache->object_size, KASAN_SHADOW_SCALE_SIZE);
+ kasan_poison_shadow(object, rounded_up_size, KASAN_KMALLOC_FREE);
+
+ if ((IS_ENABLED(CONFIG_KASAN_GENERIC) && !quarantine) ||
+ unlikely(!(cache->flags & SLAB_KASAN)))
+ return false;
+
+ set_track(&get_alloc_info(cache, object)->free_track, GFP_NOWAIT);
+ quarantine_put(get_free_info(cache, object), cache);
+
+ return IS_ENABLED(CONFIG_KASAN_GENERIC);
+}
+
+bool kasan_slab_free(struct kmem_cache *cache, void *object, unsigned long ip)
+{
+ return __kasan_slab_free(cache, object, ip, true);
+}
+
+static void *__kasan_kmalloc(struct kmem_cache *cache, const void *object,
+ size_t size, gfp_t flags, bool keep_tag)
+{
+ unsigned long redzone_start;
+ unsigned long redzone_end;
+ u8 tag = 0xff;
+
+ if (gfpflags_allow_blocking(flags))
+ quarantine_reduce();
+
+ if (unlikely(object == NULL))
+ return NULL;
+
+ redzone_start = round_up((unsigned long)(object + size),
+ KASAN_SHADOW_SCALE_SIZE);
+ redzone_end = round_up((unsigned long)object + cache->object_size,
+ KASAN_SHADOW_SCALE_SIZE);
+
+ if (IS_ENABLED(CONFIG_KASAN_SW_TAGS))
+ tag = assign_tag(cache, object, false, keep_tag);
+
+ /* Tag is ignored in set_tag without CONFIG_KASAN_SW_TAGS */
+ kasan_unpoison_shadow(set_tag(object, tag), size);
+ kasan_poison_shadow((void *)redzone_start, redzone_end - redzone_start,
+ KASAN_KMALLOC_REDZONE);
+
+ if (cache->flags & SLAB_KASAN)
+ set_track(&get_alloc_info(cache, object)->alloc_track, flags);
+
+ return set_tag(object, tag);
+}
+
+void * __must_check kasan_slab_alloc(struct kmem_cache *cache, void *object,
+ gfp_t flags)
+{
+ return __kasan_kmalloc(cache, object, cache->object_size, flags, false);
+}
+
+void * __must_check kasan_kmalloc(struct kmem_cache *cache, const void *object,
+ size_t size, gfp_t flags)
+{
+ return __kasan_kmalloc(cache, object, size, flags, true);
+}
+EXPORT_SYMBOL(kasan_kmalloc);
+
+void * __must_check kasan_kmalloc_large(const void *ptr, size_t size,
+ gfp_t flags)
+{
+ struct page *page;
+ unsigned long redzone_start;
+ unsigned long redzone_end;
+
+ if (gfpflags_allow_blocking(flags))
+ quarantine_reduce();
+
+ if (unlikely(ptr == NULL))
+ return NULL;
+
+ page = virt_to_page(ptr);
+ redzone_start = round_up((unsigned long)(ptr + size),
+ KASAN_SHADOW_SCALE_SIZE);
+ redzone_end = (unsigned long)ptr + (PAGE_SIZE << compound_order(page));
+
+ kasan_unpoison_shadow(ptr, size);
+ kasan_poison_shadow((void *)redzone_start, redzone_end - redzone_start,
+ KASAN_PAGE_REDZONE);
+
+ return (void *)ptr;
+}
+
+void * __must_check kasan_krealloc(const void *object, size_t size, gfp_t flags)
+{
+ struct page *page;
+
+ if (unlikely(object == ZERO_SIZE_PTR))
+ return (void *)object;
+
+ page = virt_to_head_page(object);
+
+ if (unlikely(!PageSlab(page)))
+ return kasan_kmalloc_large(object, size, flags);
+ else
+ return __kasan_kmalloc(page->slab_cache, object, size,
+ flags, true);
+}
+
+void kasan_poison_kfree(void *ptr, unsigned long ip)
+{
+ struct page *page;
+
+ page = virt_to_head_page(ptr);
+
+ if (unlikely(!PageSlab(page))) {
+ if (ptr != page_address(page)) {
+ kasan_report_invalid_free(ptr, ip);
+ return;
+ }
+ kasan_poison_shadow(ptr, PAGE_SIZE << compound_order(page),
+ KASAN_FREE_PAGE);
+ } else {
+ __kasan_slab_free(page->slab_cache, ptr, ip, false);
+ }
+}
+
+void kasan_kfree_large(void *ptr, unsigned long ip)
+{
+ if (ptr != page_address(virt_to_head_page(ptr)))
+ kasan_report_invalid_free(ptr, ip);
+ /* The object will be poisoned by page_alloc. */
+}
+
+int kasan_module_alloc(void *addr, size_t size)
+{
+ void *ret;
+ size_t scaled_size;
+ size_t shadow_size;
+ unsigned long shadow_start;
+
+ shadow_start = (unsigned long)kasan_mem_to_shadow(addr);
+ scaled_size = (size + KASAN_SHADOW_MASK) >> KASAN_SHADOW_SCALE_SHIFT;
+ shadow_size = round_up(scaled_size, PAGE_SIZE);
+
+ if (WARN_ON(!PAGE_ALIGNED(shadow_start)))
+ return -EINVAL;
+
+ ret = __vmalloc_node_range(shadow_size, 1, shadow_start,
+ shadow_start + shadow_size,
+ GFP_KERNEL,
+ PAGE_KERNEL, VM_NO_GUARD, NUMA_NO_NODE,
+ __builtin_return_address(0));
+
+ if (ret) {
+ __memset(ret, KASAN_SHADOW_INIT, shadow_size);
+ find_vm_area(addr)->flags |= VM_KASAN;
+ kmemleak_ignore(ret);
+ return 0;
+ }
+
+ return -ENOMEM;
+}
+
+void kasan_free_shadow(const struct vm_struct *vm)
+{
+ if (vm->flags & VM_KASAN)
+ vfree(kasan_mem_to_shadow(vm->addr));
+}
+
+extern void __kasan_report(unsigned long addr, size_t size, bool is_write, unsigned long ip);
+
+void kasan_report(unsigned long addr, size_t size, bool is_write, unsigned long ip)
+{
+ unsigned long flags = user_access_save();
+ __kasan_report(addr, size, is_write, ip);
+ user_access_restore(flags);
+}
+
+#ifdef CONFIG_MEMORY_HOTPLUG
+static bool shadow_mapped(unsigned long addr)
+{
+ pgd_t *pgd = pgd_offset_k(addr);
+ p4d_t *p4d;
+ pud_t *pud;
+ pmd_t *pmd;
+ pte_t *pte;
+
+ if (pgd_none(*pgd))
+ return false;
+ p4d = p4d_offset(pgd, addr);
+ if (p4d_none(*p4d))
+ return false;
+ pud = pud_offset(p4d, addr);
+ if (pud_none(*pud))
+ return false;
+
+ /*
+ * We can't use pud_large() or pud_huge(), the first one is
+ * arch-specific, the last one depends on HUGETLB_PAGE. So let's abuse
+ * pud_bad(), if pud is bad then it's bad because it's huge.
+ */
+ if (pud_bad(*pud))
+ return true;
+ pmd = pmd_offset(pud, addr);
+ if (pmd_none(*pmd))
+ return false;
+
+ if (pmd_bad(*pmd))
+ return true;
+ pte = pte_offset_kernel(pmd, addr);
+ return !pte_none(*pte);
+}
+
+static int __meminit kasan_mem_notifier(struct notifier_block *nb,
+ unsigned long action, void *data)
+{
+ struct memory_notify *mem_data = data;
+ unsigned long nr_shadow_pages, start_kaddr, shadow_start;
+ unsigned long shadow_end, shadow_size;
+
+ nr_shadow_pages = mem_data->nr_pages >> KASAN_SHADOW_SCALE_SHIFT;
+ start_kaddr = (unsigned long)pfn_to_kaddr(mem_data->start_pfn);
+ shadow_start = (unsigned long)kasan_mem_to_shadow((void *)start_kaddr);
+ shadow_size = nr_shadow_pages << PAGE_SHIFT;
+ shadow_end = shadow_start + shadow_size;
+
+ if (WARN_ON(mem_data->nr_pages % KASAN_SHADOW_SCALE_SIZE) ||
+ WARN_ON(start_kaddr % (KASAN_SHADOW_SCALE_SIZE << PAGE_SHIFT)))
+ return NOTIFY_BAD;
+
+ switch (action) {
+ case MEM_GOING_ONLINE: {
+ void *ret;
+
+ /*
+ * If shadow is mapped already than it must have been mapped
+ * during the boot. This could happen if we onlining previously
+ * offlined memory.
+ */
+ if (shadow_mapped(shadow_start))
+ return NOTIFY_OK;
+
+ ret = __vmalloc_node_range(shadow_size, PAGE_SIZE, shadow_start,
+ shadow_end, GFP_KERNEL,
+ PAGE_KERNEL, VM_NO_GUARD,
+ pfn_to_nid(mem_data->start_pfn),
+ __builtin_return_address(0));
+ if (!ret)
+ return NOTIFY_BAD;
+
+ kmemleak_ignore(ret);
+ return NOTIFY_OK;
+ }
+ case MEM_CANCEL_ONLINE:
+ case MEM_OFFLINE: {
+ struct vm_struct *vm;
+
+ /*
+ * shadow_start was either mapped during boot by kasan_init()
+ * or during memory online by __vmalloc_node_range().
+ * In the latter case we can use vfree() to free shadow.
+ * Non-NULL result of the find_vm_area() will tell us if
+ * that was the second case.
+ *
+ * Currently it's not possible to free shadow mapped
+ * during boot by kasan_init(). It's because the code
+ * to do that hasn't been written yet. So we'll just
+ * leak the memory.
+ */
+ vm = find_vm_area((void *)shadow_start);
+ if (vm)
+ vfree((void *)shadow_start);
+ }
+ }
+
+ return NOTIFY_OK;
+}
+
+static int __init kasan_memhotplug_init(void)
+{
+ hotplug_memory_notifier(kasan_mem_notifier, 0);
+
+ return 0;
+}
+
+core_initcall(kasan_memhotplug_init);
+#endif
diff --git a/mm/kasan/generic.c b/mm/kasan/generic.c
new file mode 100644
index 0000000..504c7936
--- /dev/null
+++ b/mm/kasan/generic.c
@@ -0,0 +1,325 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * This file contains core generic KASAN code.
+ *
+ * Copyright (c) 2014 Samsung Electronics Co., Ltd.
+ * Author: Andrey Ryabinin <ryabinin.a.a@gmail.com>
+ *
+ * Some code borrowed from https://github.com/xairy/kasan-prototype by
+ * Andrey Konovalov <andreyknvl@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#define DISABLE_BRANCH_PROFILING
+
+#include <linux/export.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/kasan.h>
+#include <linux/kernel.h>
+#include <linux/kmemleak.h>
+#include <linux/linkage.h>
+#include <linux/memblock.h>
+#include <linux/memory.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/printk.h>
+#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
+#include <linux/slab.h>
+#include <linux/stacktrace.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/vmalloc.h>
+#include <linux/bug.h>
+
+#include "kasan.h"
+#include "../slab.h"
+
+/*
+ * All functions below always inlined so compiler could
+ * perform better optimizations in each of __asan_loadX/__assn_storeX
+ * depending on memory access size X.
+ */
+
+static __always_inline bool memory_is_poisoned_1(unsigned long addr)
+{
+ s8 shadow_value = *(s8 *)kasan_mem_to_shadow((void *)addr);
+
+ if (unlikely(shadow_value)) {
+ s8 last_accessible_byte = addr & KASAN_SHADOW_MASK;
+ return unlikely(last_accessible_byte >= shadow_value);
+ }
+
+ return false;
+}
+
+static __always_inline bool memory_is_poisoned_2_4_8(unsigned long addr,
+ unsigned long size)
+{
+ u8 *shadow_addr = (u8 *)kasan_mem_to_shadow((void *)addr);
+
+ /*
+ * Access crosses 8(shadow size)-byte boundary. Such access maps
+ * into 2 shadow bytes, so we need to check them both.
+ */
+ if (unlikely(((addr + size - 1) & KASAN_SHADOW_MASK) < size - 1))
+ return *shadow_addr || memory_is_poisoned_1(addr + size - 1);
+
+ return memory_is_poisoned_1(addr + size - 1);
+}
+
+static __always_inline bool memory_is_poisoned_16(unsigned long addr)
+{
+ u16 *shadow_addr = (u16 *)kasan_mem_to_shadow((void *)addr);
+
+ /* Unaligned 16-bytes access maps into 3 shadow bytes. */
+ if (unlikely(!IS_ALIGNED(addr, KASAN_SHADOW_SCALE_SIZE)))
+ return *shadow_addr || memory_is_poisoned_1(addr + 15);
+
+ return *shadow_addr;
+}
+
+static __always_inline unsigned long bytes_is_nonzero(const u8 *start,
+ size_t size)
+{
+ while (size) {
+ if (unlikely(*start))
+ return (unsigned long)start;
+ start++;
+ size--;
+ }
+
+ return 0;
+}
+
+static __always_inline unsigned long memory_is_nonzero(const void *start,
+ const void *end)
+{
+ unsigned int words;
+ unsigned long ret;
+ unsigned int prefix = (unsigned long)start % 8;
+
+ if (end - start <= 16)
+ return bytes_is_nonzero(start, end - start);
+
+ if (prefix) {
+ prefix = 8 - prefix;
+ ret = bytes_is_nonzero(start, prefix);
+ if (unlikely(ret))
+ return ret;
+ start += prefix;
+ }
+
+ words = (end - start) / 8;
+ while (words) {
+ if (unlikely(*(u64 *)start))
+ return bytes_is_nonzero(start, 8);
+ start += 8;
+ words--;
+ }
+
+ return bytes_is_nonzero(start, (end - start) % 8);
+}
+
+static __always_inline bool memory_is_poisoned_n(unsigned long addr,
+ size_t size)
+{
+ unsigned long ret;
+
+ ret = memory_is_nonzero(kasan_mem_to_shadow((void *)addr),
+ kasan_mem_to_shadow((void *)addr + size - 1) + 1);
+
+ if (unlikely(ret)) {
+ unsigned long last_byte = addr + size - 1;
+ s8 *last_shadow = (s8 *)kasan_mem_to_shadow((void *)last_byte);
+
+ if (unlikely(ret != (unsigned long)last_shadow ||
+ ((long)(last_byte & KASAN_SHADOW_MASK) >= *last_shadow)))
+ return true;
+ }
+ return false;
+}
+
+static __always_inline bool memory_is_poisoned(unsigned long addr, size_t size)
+{
+ if (__builtin_constant_p(size)) {
+ switch (size) {
+ case 1:
+ return memory_is_poisoned_1(addr);
+ case 2:
+ case 4:
+ case 8:
+ return memory_is_poisoned_2_4_8(addr, size);
+ case 16:
+ return memory_is_poisoned_16(addr);
+ default:
+ BUILD_BUG();
+ }
+ }
+
+ return memory_is_poisoned_n(addr, size);
+}
+
+static __always_inline void check_memory_region_inline(unsigned long addr,
+ size_t size, bool write,
+ unsigned long ret_ip)
+{
+ if (unlikely(size == 0))
+ return;
+
+ if (unlikely((void *)addr <
+ kasan_shadow_to_mem((void *)KASAN_SHADOW_START))) {
+ kasan_report(addr, size, write, ret_ip);
+ return;
+ }
+
+ if (likely(!memory_is_poisoned(addr, size)))
+ return;
+
+ kasan_report(addr, size, write, ret_ip);
+}
+
+void check_memory_region(unsigned long addr, size_t size, bool write,
+ unsigned long ret_ip)
+{
+ check_memory_region_inline(addr, size, write, ret_ip);
+}
+
+void kasan_cache_shrink(struct kmem_cache *cache)
+{
+ quarantine_remove_cache(cache);
+}
+
+void kasan_cache_shutdown(struct kmem_cache *cache)
+{
+ if (!__kmem_cache_empty(cache))
+ quarantine_remove_cache(cache);
+}
+
+static void register_global(struct kasan_global *global)
+{
+ size_t aligned_size = round_up(global->size, KASAN_SHADOW_SCALE_SIZE);
+
+ kasan_unpoison_shadow(global->beg, global->size);
+
+ kasan_poison_shadow(global->beg + aligned_size,
+ global->size_with_redzone - aligned_size,
+ KASAN_GLOBAL_REDZONE);
+}
+
+void __asan_register_globals(struct kasan_global *globals, size_t size)
+{
+ int i;
+
+ for (i = 0; i < size; i++)
+ register_global(&globals[i]);
+}
+EXPORT_SYMBOL(__asan_register_globals);
+
+void __asan_unregister_globals(struct kasan_global *globals, size_t size)
+{
+}
+EXPORT_SYMBOL(__asan_unregister_globals);
+
+#define DEFINE_ASAN_LOAD_STORE(size) \
+ void __asan_load##size(unsigned long addr) \
+ { \
+ check_memory_region_inline(addr, size, false, _RET_IP_);\
+ } \
+ EXPORT_SYMBOL(__asan_load##size); \
+ __alias(__asan_load##size) \
+ void __asan_load##size##_noabort(unsigned long); \
+ EXPORT_SYMBOL(__asan_load##size##_noabort); \
+ void __asan_store##size(unsigned long addr) \
+ { \
+ check_memory_region_inline(addr, size, true, _RET_IP_); \
+ } \
+ EXPORT_SYMBOL(__asan_store##size); \
+ __alias(__asan_store##size) \
+ void __asan_store##size##_noabort(unsigned long); \
+ EXPORT_SYMBOL(__asan_store##size##_noabort)
+
+DEFINE_ASAN_LOAD_STORE(1);
+DEFINE_ASAN_LOAD_STORE(2);
+DEFINE_ASAN_LOAD_STORE(4);
+DEFINE_ASAN_LOAD_STORE(8);
+DEFINE_ASAN_LOAD_STORE(16);
+
+void __asan_loadN(unsigned long addr, size_t size)
+{
+ check_memory_region(addr, size, false, _RET_IP_);
+}
+EXPORT_SYMBOL(__asan_loadN);
+
+__alias(__asan_loadN)
+void __asan_loadN_noabort(unsigned long, size_t);
+EXPORT_SYMBOL(__asan_loadN_noabort);
+
+void __asan_storeN(unsigned long addr, size_t size)
+{
+ check_memory_region(addr, size, true, _RET_IP_);
+}
+EXPORT_SYMBOL(__asan_storeN);
+
+__alias(__asan_storeN)
+void __asan_storeN_noabort(unsigned long, size_t);
+EXPORT_SYMBOL(__asan_storeN_noabort);
+
+/* to shut up compiler complaints */
+void __asan_handle_no_return(void) {}
+EXPORT_SYMBOL(__asan_handle_no_return);
+
+/* Emitted by compiler to poison alloca()ed objects. */
+void __asan_alloca_poison(unsigned long addr, size_t size)
+{
+ size_t rounded_up_size = round_up(size, KASAN_SHADOW_SCALE_SIZE);
+ size_t padding_size = round_up(size, KASAN_ALLOCA_REDZONE_SIZE) -
+ rounded_up_size;
+ size_t rounded_down_size = round_down(size, KASAN_SHADOW_SCALE_SIZE);
+
+ const void *left_redzone = (const void *)(addr -
+ KASAN_ALLOCA_REDZONE_SIZE);
+ const void *right_redzone = (const void *)(addr + rounded_up_size);
+
+ WARN_ON(!IS_ALIGNED(addr, KASAN_ALLOCA_REDZONE_SIZE));
+
+ kasan_unpoison_shadow((const void *)(addr + rounded_down_size),
+ size - rounded_down_size);
+ kasan_poison_shadow(left_redzone, KASAN_ALLOCA_REDZONE_SIZE,
+ KASAN_ALLOCA_LEFT);
+ kasan_poison_shadow(right_redzone,
+ padding_size + KASAN_ALLOCA_REDZONE_SIZE,
+ KASAN_ALLOCA_RIGHT);
+}
+EXPORT_SYMBOL(__asan_alloca_poison);
+
+/* Emitted by compiler to unpoison alloca()ed areas when the stack unwinds. */
+void __asan_allocas_unpoison(const void *stack_top, const void *stack_bottom)
+{
+ if (unlikely(!stack_top || stack_top > stack_bottom))
+ return;
+
+ kasan_unpoison_shadow(stack_top, stack_bottom - stack_top);
+}
+EXPORT_SYMBOL(__asan_allocas_unpoison);
+
+/* Emitted by the compiler to [un]poison local variables. */
+#define DEFINE_ASAN_SET_SHADOW(byte) \
+ void __asan_set_shadow_##byte(const void *addr, size_t size) \
+ { \
+ __memset((void *)addr, 0x##byte, size); \
+ } \
+ EXPORT_SYMBOL(__asan_set_shadow_##byte)
+
+DEFINE_ASAN_SET_SHADOW(00);
+DEFINE_ASAN_SET_SHADOW(f1);
+DEFINE_ASAN_SET_SHADOW(f2);
+DEFINE_ASAN_SET_SHADOW(f3);
+DEFINE_ASAN_SET_SHADOW(f5);
+DEFINE_ASAN_SET_SHADOW(f8);
diff --git a/mm/kasan/generic_report.c b/mm/kasan/generic_report.c
new file mode 100644
index 0000000..36c6459
--- /dev/null
+++ b/mm/kasan/generic_report.c
@@ -0,0 +1,150 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * This file contains generic KASAN specific error reporting code.
+ *
+ * Copyright (c) 2014 Samsung Electronics Co., Ltd.
+ * Author: Andrey Ryabinin <ryabinin.a.a@gmail.com>
+ *
+ * Some code borrowed from https://github.com/xairy/kasan-prototype by
+ * Andrey Konovalov <andreyknvl@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/bitops.h>
+#include <linux/ftrace.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/printk.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/stackdepot.h>
+#include <linux/stacktrace.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/kasan.h>
+#include <linux/module.h>
+
+#include <asm/sections.h>
+
+#include "kasan.h"
+#include "../slab.h"
+
+void *find_first_bad_addr(void *addr, size_t size)
+{
+ void *p = addr;
+
+ while (p < addr + size && !(*(u8 *)kasan_mem_to_shadow(p)))
+ p += KASAN_SHADOW_SCALE_SIZE;
+ return p;
+}
+
+static const char *get_shadow_bug_type(struct kasan_access_info *info)
+{
+ const char *bug_type = "unknown-crash";
+ u8 *shadow_addr;
+
+ shadow_addr = (u8 *)kasan_mem_to_shadow(info->first_bad_addr);
+
+ /*
+ * If shadow byte value is in [0, KASAN_SHADOW_SCALE_SIZE) we can look
+ * at the next shadow byte to determine the type of the bad access.
+ */
+ if (*shadow_addr > 0 && *shadow_addr <= KASAN_SHADOW_SCALE_SIZE - 1)
+ shadow_addr++;
+
+ switch (*shadow_addr) {
+ case 0 ... KASAN_SHADOW_SCALE_SIZE - 1:
+ /*
+ * In theory it's still possible to see these shadow values
+ * due to a data race in the kernel code.
+ */
+ bug_type = "out-of-bounds";
+ break;
+ case KASAN_PAGE_REDZONE:
+ case KASAN_KMALLOC_REDZONE:
+ bug_type = "slab-out-of-bounds";
+ break;
+ case KASAN_GLOBAL_REDZONE:
+ bug_type = "global-out-of-bounds";
+ break;
+ case KASAN_STACK_LEFT:
+ case KASAN_STACK_MID:
+ case KASAN_STACK_RIGHT:
+ case KASAN_STACK_PARTIAL:
+ bug_type = "stack-out-of-bounds";
+ break;
+ case KASAN_FREE_PAGE:
+ case KASAN_KMALLOC_FREE:
+ bug_type = "use-after-free";
+ break;
+ case KASAN_ALLOCA_LEFT:
+ case KASAN_ALLOCA_RIGHT:
+ bug_type = "alloca-out-of-bounds";
+ break;
+ }
+
+ return bug_type;
+}
+
+static const char *get_wild_bug_type(struct kasan_access_info *info)
+{
+ const char *bug_type = "unknown-crash";
+
+ if ((unsigned long)info->access_addr < PAGE_SIZE)
+ bug_type = "null-ptr-deref";
+ else if ((unsigned long)info->access_addr < TASK_SIZE)
+ bug_type = "user-memory-access";
+ else
+ bug_type = "wild-memory-access";
+
+ return bug_type;
+}
+
+const char *get_bug_type(struct kasan_access_info *info)
+{
+ if (addr_has_shadow(info->access_addr))
+ return get_shadow_bug_type(info);
+ return get_wild_bug_type(info);
+}
+
+#define DEFINE_ASAN_REPORT_LOAD(size) \
+void __asan_report_load##size##_noabort(unsigned long addr) \
+{ \
+ kasan_report(addr, size, false, _RET_IP_); \
+} \
+EXPORT_SYMBOL(__asan_report_load##size##_noabort)
+
+#define DEFINE_ASAN_REPORT_STORE(size) \
+void __asan_report_store##size##_noabort(unsigned long addr) \
+{ \
+ kasan_report(addr, size, true, _RET_IP_); \
+} \
+EXPORT_SYMBOL(__asan_report_store##size##_noabort)
+
+DEFINE_ASAN_REPORT_LOAD(1);
+DEFINE_ASAN_REPORT_LOAD(2);
+DEFINE_ASAN_REPORT_LOAD(4);
+DEFINE_ASAN_REPORT_LOAD(8);
+DEFINE_ASAN_REPORT_LOAD(16);
+DEFINE_ASAN_REPORT_STORE(1);
+DEFINE_ASAN_REPORT_STORE(2);
+DEFINE_ASAN_REPORT_STORE(4);
+DEFINE_ASAN_REPORT_STORE(8);
+DEFINE_ASAN_REPORT_STORE(16);
+
+void __asan_report_load_n_noabort(unsigned long addr, size_t size)
+{
+ kasan_report(addr, size, false, _RET_IP_);
+}
+EXPORT_SYMBOL(__asan_report_load_n_noabort);
+
+void __asan_report_store_n_noabort(unsigned long addr, size_t size)
+{
+ kasan_report(addr, size, true, _RET_IP_);
+}
+EXPORT_SYMBOL(__asan_report_store_n_noabort);
diff --git a/mm/kasan/kasan_init.c b/mm/kasan/init.c
similarity index 82%
rename from mm/kasan/kasan_init.c
rename to mm/kasan/init.c
index 7a731c7..807b541 100644
--- a/mm/kasan/kasan_init.c
+++ b/mm/kasan/init.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* This file contains some kasan initialization code.
*
@@ -31,54 +32,54 @@
* - Latter it reused it as zero shadow to cover large ranges of memory
* that allowed to access, but not handled by kasan (vmalloc/vmemmap ...).
*/
-unsigned char kasan_zero_page[PAGE_SIZE] __page_aligned_bss;
+unsigned char kasan_early_shadow_page[PAGE_SIZE] __page_aligned_bss;
#if CONFIG_PGTABLE_LEVELS > 4
-p4d_t kasan_zero_p4d[MAX_PTRS_PER_P4D] __page_aligned_bss;
+p4d_t kasan_early_shadow_p4d[MAX_PTRS_PER_P4D] __page_aligned_bss;
static inline bool kasan_p4d_table(pgd_t pgd)
{
- return pgd_page(pgd) == virt_to_page(lm_alias(kasan_zero_p4d));
+ return pgd_page(pgd) == virt_to_page(lm_alias(kasan_early_shadow_p4d));
}
#else
static inline bool kasan_p4d_table(pgd_t pgd)
{
- return 0;
+ return false;
}
#endif
#if CONFIG_PGTABLE_LEVELS > 3
-pud_t kasan_zero_pud[PTRS_PER_PUD] __page_aligned_bss;
+pud_t kasan_early_shadow_pud[PTRS_PER_PUD] __page_aligned_bss;
static inline bool kasan_pud_table(p4d_t p4d)
{
- return p4d_page(p4d) == virt_to_page(lm_alias(kasan_zero_pud));
+ return p4d_page(p4d) == virt_to_page(lm_alias(kasan_early_shadow_pud));
}
#else
static inline bool kasan_pud_table(p4d_t p4d)
{
- return 0;
+ return false;
}
#endif
#if CONFIG_PGTABLE_LEVELS > 2
-pmd_t kasan_zero_pmd[PTRS_PER_PMD] __page_aligned_bss;
+pmd_t kasan_early_shadow_pmd[PTRS_PER_PMD] __page_aligned_bss;
static inline bool kasan_pmd_table(pud_t pud)
{
- return pud_page(pud) == virt_to_page(lm_alias(kasan_zero_pmd));
+ return pud_page(pud) == virt_to_page(lm_alias(kasan_early_shadow_pmd));
}
#else
static inline bool kasan_pmd_table(pud_t pud)
{
- return 0;
+ return false;
}
#endif
-pte_t kasan_zero_pte[PTRS_PER_PTE] __page_aligned_bss;
+pte_t kasan_early_shadow_pte[PTRS_PER_PTE] __page_aligned_bss;
static inline bool kasan_pte_table(pmd_t pmd)
{
- return pmd_page(pmd) == virt_to_page(lm_alias(kasan_zero_pte));
+ return pmd_page(pmd) == virt_to_page(lm_alias(kasan_early_shadow_pte));
}
-static inline bool kasan_zero_page_entry(pte_t pte)
+static inline bool kasan_early_shadow_page_entry(pte_t pte)
{
- return pte_page(pte) == virt_to_page(lm_alias(kasan_zero_page));
+ return pte_page(pte) == virt_to_page(lm_alias(kasan_early_shadow_page));
}
static __init void *early_alloc(size_t size, int node)
@@ -93,7 +94,8 @@ static void __ref zero_pte_populate(pmd_t *pmd, unsigned long addr,
pte_t *pte = pte_offset_kernel(pmd, addr);
pte_t zero_pte;
- zero_pte = pfn_pte(PFN_DOWN(__pa_symbol(kasan_zero_page)), PAGE_KERNEL);
+ zero_pte = pfn_pte(PFN_DOWN(__pa_symbol(kasan_early_shadow_page)),
+ PAGE_KERNEL);
zero_pte = pte_wrprotect(zero_pte);
while (addr + PAGE_SIZE <= end) {
@@ -113,7 +115,8 @@ static int __ref zero_pmd_populate(pud_t *pud, unsigned long addr,
next = pmd_addr_end(addr, end);
if (IS_ALIGNED(addr, PMD_SIZE) && end - addr >= PMD_SIZE) {
- pmd_populate_kernel(&init_mm, pmd, lm_alias(kasan_zero_pte));
+ pmd_populate_kernel(&init_mm, pmd,
+ lm_alias(kasan_early_shadow_pte));
continue;
}
@@ -146,9 +149,11 @@ static int __ref zero_pud_populate(p4d_t *p4d, unsigned long addr,
if (IS_ALIGNED(addr, PUD_SIZE) && end - addr >= PUD_SIZE) {
pmd_t *pmd;
- pud_populate(&init_mm, pud, lm_alias(kasan_zero_pmd));
+ pud_populate(&init_mm, pud,
+ lm_alias(kasan_early_shadow_pmd));
pmd = pmd_offset(pud, addr);
- pmd_populate_kernel(&init_mm, pmd, lm_alias(kasan_zero_pte));
+ pmd_populate_kernel(&init_mm, pmd,
+ lm_alias(kasan_early_shadow_pte));
continue;
}
@@ -182,12 +187,14 @@ static int __ref zero_p4d_populate(pgd_t *pgd, unsigned long addr,
pud_t *pud;
pmd_t *pmd;
- p4d_populate(&init_mm, p4d, lm_alias(kasan_zero_pud));
+ p4d_populate(&init_mm, p4d,
+ lm_alias(kasan_early_shadow_pud));
pud = pud_offset(p4d, addr);
- pud_populate(&init_mm, pud, lm_alias(kasan_zero_pmd));
+ pud_populate(&init_mm, pud,
+ lm_alias(kasan_early_shadow_pmd));
pmd = pmd_offset(pud, addr);
pmd_populate_kernel(&init_mm, pmd,
- lm_alias(kasan_zero_pte));
+ lm_alias(kasan_early_shadow_pte));
continue;
}
@@ -210,13 +217,13 @@ static int __ref zero_p4d_populate(pgd_t *pgd, unsigned long addr,
}
/**
- * kasan_populate_zero_shadow - populate shadow memory region with
- * kasan_zero_page
+ * kasan_populate_early_shadow - populate shadow memory region with
+ * kasan_early_shadow_page
* @shadow_start - start of the memory range to populate
* @shadow_end - end of the memory range to populate
*/
-int __ref kasan_populate_zero_shadow(const void *shadow_start,
- const void *shadow_end)
+int __ref kasan_populate_early_shadow(const void *shadow_start,
+ const void *shadow_end)
{
unsigned long addr = (unsigned long)shadow_start;
unsigned long end = (unsigned long)shadow_end;
@@ -232,7 +239,7 @@ int __ref kasan_populate_zero_shadow(const void *shadow_start,
pmd_t *pmd;
/*
- * kasan_zero_pud should be populated with pmds
+ * kasan_early_shadow_pud should be populated with pmds
* at this moment.
* [pud,pmd]_populate*() below needed only for
* 3,2 - level page tables where we don't have
@@ -242,21 +249,25 @@ int __ref kasan_populate_zero_shadow(const void *shadow_start,
* The ifndef is required to avoid build breakage.
*
* With 5level-fixup.h, pgd_populate() is not nop and
- * we reference kasan_zero_p4d. It's not defined
+ * we reference kasan_early_shadow_p4d. It's not defined
* unless 5-level paging enabled.
*
* The ifndef can be dropped once all KASAN-enabled
* architectures will switch to pgtable-nop4d.h.
*/
#ifndef __ARCH_HAS_5LEVEL_HACK
- pgd_populate(&init_mm, pgd, lm_alias(kasan_zero_p4d));
+ pgd_populate(&init_mm, pgd,
+ lm_alias(kasan_early_shadow_p4d));
#endif
p4d = p4d_offset(pgd, addr);
- p4d_populate(&init_mm, p4d, lm_alias(kasan_zero_pud));
+ p4d_populate(&init_mm, p4d,
+ lm_alias(kasan_early_shadow_pud));
pud = pud_offset(p4d, addr);
- pud_populate(&init_mm, pud, lm_alias(kasan_zero_pmd));
+ pud_populate(&init_mm, pud,
+ lm_alias(kasan_early_shadow_pmd));
pmd = pmd_offset(pud, addr);
- pmd_populate_kernel(&init_mm, pmd, lm_alias(kasan_zero_pte));
+ pmd_populate_kernel(&init_mm, pmd,
+ lm_alias(kasan_early_shadow_pte));
continue;
}
@@ -351,7 +362,7 @@ static void kasan_remove_pte_table(pte_t *pte, unsigned long addr,
if (!pte_present(*pte))
continue;
- if (WARN_ON(!kasan_zero_page_entry(*pte)))
+ if (WARN_ON(!kasan_early_shadow_page_entry(*pte)))
continue;
pte_clear(&init_mm, addr, pte);
}
@@ -485,7 +496,7 @@ int kasan_add_zero_shadow(void *start, unsigned long size)
WARN_ON(size % (KASAN_SHADOW_SCALE_SIZE * PAGE_SIZE)))
return -EINVAL;
- ret = kasan_populate_zero_shadow(shadow_start, shadow_end);
+ ret = kasan_populate_early_shadow(shadow_start, shadow_end);
if (ret)
kasan_remove_zero_shadow(start, size);
return ret;
diff --git a/mm/kasan/kasan.c b/mm/kasan/kasan.c
deleted file mode 100644
index c3bd520..0000000
--- a/mm/kasan/kasan.c
+++ /dev/null
@@ -1,903 +0,0 @@
-/*
- * This file contains shadow memory manipulation code.
- *
- * Copyright (c) 2014 Samsung Electronics Co., Ltd.
- * Author: Andrey Ryabinin <ryabinin.a.a@gmail.com>
- *
- * Some code borrowed from https://github.com/xairy/kasan-prototype by
- * Andrey Konovalov <andreyknvl@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-#define DISABLE_BRANCH_PROFILING
-
-#include <linux/export.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/kasan.h>
-#include <linux/kernel.h>
-#include <linux/kmemleak.h>
-#include <linux/linkage.h>
-#include <linux/memblock.h>
-#include <linux/memory.h>
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/printk.h>
-#include <linux/sched.h>
-#include <linux/sched/task_stack.h>
-#include <linux/slab.h>
-#include <linux/stacktrace.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/vmalloc.h>
-#include <linux/bug.h>
-
-#include "kasan.h"
-#include "../slab.h"
-
-void kasan_enable_current(void)
-{
- current->kasan_depth++;
-}
-
-void kasan_disable_current(void)
-{
- current->kasan_depth--;
-}
-
-/*
- * Poisons the shadow memory for 'size' bytes starting from 'addr'.
- * Memory addresses should be aligned to KASAN_SHADOW_SCALE_SIZE.
- */
-static void kasan_poison_shadow(const void *address, size_t size, u8 value)
-{
- void *shadow_start, *shadow_end;
-
- shadow_start = kasan_mem_to_shadow(address);
- shadow_end = kasan_mem_to_shadow(address + size);
-
- memset(shadow_start, value, shadow_end - shadow_start);
-}
-
-void kasan_unpoison_shadow(const void *address, size_t size)
-{
- kasan_poison_shadow(address, size, 0);
-
- if (size & KASAN_SHADOW_MASK) {
- u8 *shadow = (u8 *)kasan_mem_to_shadow(address + size);
- *shadow = size & KASAN_SHADOW_MASK;
- }
-}
-
-static void __kasan_unpoison_stack(struct task_struct *task, const void *sp)
-{
- void *base = task_stack_page(task);
- size_t size = sp - base;
-
- kasan_unpoison_shadow(base, size);
-}
-
-/* Unpoison the entire stack for a task. */
-void kasan_unpoison_task_stack(struct task_struct *task)
-{
- __kasan_unpoison_stack(task, task_stack_page(task) + THREAD_SIZE);
-}
-
-/* Unpoison the stack for the current task beyond a watermark sp value. */
-asmlinkage void kasan_unpoison_task_stack_below(const void *watermark)
-{
- /*
- * Calculate the task stack base address. Avoid using 'current'
- * because this function is called by early resume code which hasn't
- * yet set up the percpu register (%gs).
- */
- void *base = (void *)((unsigned long)watermark & ~(THREAD_SIZE - 1));
-
- kasan_unpoison_shadow(base, watermark - base);
-}
-
-/*
- * Clear all poison for the region between the current SP and a provided
- * watermark value, as is sometimes required prior to hand-crafted asm function
- * returns in the middle of functions.
- */
-void kasan_unpoison_stack_above_sp_to(const void *watermark)
-{
- const void *sp = __builtin_frame_address(0);
- size_t size = watermark - sp;
-
- if (WARN_ON(sp > watermark))
- return;
- kasan_unpoison_shadow(sp, size);
-}
-
-/*
- * All functions below always inlined so compiler could
- * perform better optimizations in each of __asan_loadX/__assn_storeX
- * depending on memory access size X.
- */
-
-static __always_inline bool memory_is_poisoned_1(unsigned long addr)
-{
- s8 shadow_value = *(s8 *)kasan_mem_to_shadow((void *)addr);
-
- if (unlikely(shadow_value)) {
- s8 last_accessible_byte = addr & KASAN_SHADOW_MASK;
- return unlikely(last_accessible_byte >= shadow_value);
- }
-
- return false;
-}
-
-static __always_inline bool memory_is_poisoned_2_4_8(unsigned long addr,
- unsigned long size)
-{
- u8 *shadow_addr = (u8 *)kasan_mem_to_shadow((void *)addr);
-
- /*
- * Access crosses 8(shadow size)-byte boundary. Such access maps
- * into 2 shadow bytes, so we need to check them both.
- */
- if (unlikely(((addr + size - 1) & KASAN_SHADOW_MASK) < size - 1))
- return *shadow_addr || memory_is_poisoned_1(addr + size - 1);
-
- return memory_is_poisoned_1(addr + size - 1);
-}
-
-static __always_inline bool memory_is_poisoned_16(unsigned long addr)
-{
- u16 *shadow_addr = (u16 *)kasan_mem_to_shadow((void *)addr);
-
- /* Unaligned 16-bytes access maps into 3 shadow bytes. */
- if (unlikely(!IS_ALIGNED(addr, KASAN_SHADOW_SCALE_SIZE)))
- return *shadow_addr || memory_is_poisoned_1(addr + 15);
-
- return *shadow_addr;
-}
-
-static __always_inline unsigned long bytes_is_nonzero(const u8 *start,
- size_t size)
-{
- while (size) {
- if (unlikely(*start))
- return (unsigned long)start;
- start++;
- size--;
- }
-
- return 0;
-}
-
-static __always_inline unsigned long memory_is_nonzero(const void *start,
- const void *end)
-{
- unsigned int words;
- unsigned long ret;
- unsigned int prefix = (unsigned long)start % 8;
-
- if (end - start <= 16)
- return bytes_is_nonzero(start, end - start);
-
- if (prefix) {
- prefix = 8 - prefix;
- ret = bytes_is_nonzero(start, prefix);
- if (unlikely(ret))
- return ret;
- start += prefix;
- }
-
- words = (end - start) / 8;
- while (words) {
- if (unlikely(*(u64 *)start))
- return bytes_is_nonzero(start, 8);
- start += 8;
- words--;
- }
-
- return bytes_is_nonzero(start, (end - start) % 8);
-}
-
-static __always_inline bool memory_is_poisoned_n(unsigned long addr,
- size_t size)
-{
- unsigned long ret;
-
- ret = memory_is_nonzero(kasan_mem_to_shadow((void *)addr),
- kasan_mem_to_shadow((void *)addr + size - 1) + 1);
-
- if (unlikely(ret)) {
- unsigned long last_byte = addr + size - 1;
- s8 *last_shadow = (s8 *)kasan_mem_to_shadow((void *)last_byte);
-
- if (unlikely(ret != (unsigned long)last_shadow ||
- ((long)(last_byte & KASAN_SHADOW_MASK) >= *last_shadow)))
- return true;
- }
- return false;
-}
-
-static __always_inline bool memory_is_poisoned(unsigned long addr, size_t size)
-{
- if (__builtin_constant_p(size)) {
- switch (size) {
- case 1:
- return memory_is_poisoned_1(addr);
- case 2:
- case 4:
- case 8:
- return memory_is_poisoned_2_4_8(addr, size);
- case 16:
- return memory_is_poisoned_16(addr);
- default:
- BUILD_BUG();
- }
- }
-
- return memory_is_poisoned_n(addr, size);
-}
-
-static __always_inline void check_memory_region_inline(unsigned long addr,
- size_t size, bool write,
- unsigned long ret_ip)
-{
- if (unlikely(size == 0))
- return;
-
- if (unlikely((void *)addr <
- kasan_shadow_to_mem((void *)KASAN_SHADOW_START))) {
- kasan_report(addr, size, write, ret_ip);
- return;
- }
-
- if (likely(!memory_is_poisoned(addr, size)))
- return;
-
- kasan_report(addr, size, write, ret_ip);
-}
-
-static void check_memory_region(unsigned long addr,
- size_t size, bool write,
- unsigned long ret_ip)
-{
- check_memory_region_inline(addr, size, write, ret_ip);
-}
-
-void kasan_check_read(const volatile void *p, unsigned int size)
-{
- check_memory_region((unsigned long)p, size, false, _RET_IP_);
-}
-EXPORT_SYMBOL(kasan_check_read);
-
-void kasan_check_write(const volatile void *p, unsigned int size)
-{
- check_memory_region((unsigned long)p, size, true, _RET_IP_);
-}
-EXPORT_SYMBOL(kasan_check_write);
-
-#undef memset
-void *memset(void *addr, int c, size_t len)
-{
- check_memory_region((unsigned long)addr, len, true, _RET_IP_);
-
- return __memset(addr, c, len);
-}
-
-#undef memmove
-void *memmove(void *dest, const void *src, size_t len)
-{
- check_memory_region((unsigned long)src, len, false, _RET_IP_);
- check_memory_region((unsigned long)dest, len, true, _RET_IP_);
-
- return __memmove(dest, src, len);
-}
-
-#undef memcpy
-void *memcpy(void *dest, const void *src, size_t len)
-{
- check_memory_region((unsigned long)src, len, false, _RET_IP_);
- check_memory_region((unsigned long)dest, len, true, _RET_IP_);
-
- return __memcpy(dest, src, len);
-}
-
-void kasan_alloc_pages(struct page *page, unsigned int order)
-{
- if (likely(!PageHighMem(page)))
- kasan_unpoison_shadow(page_address(page), PAGE_SIZE << order);
-}
-
-void kasan_free_pages(struct page *page, unsigned int order)
-{
- if (likely(!PageHighMem(page)))
- kasan_poison_shadow(page_address(page),
- PAGE_SIZE << order,
- KASAN_FREE_PAGE);
-}
-
-/*
- * Adaptive redzone policy taken from the userspace AddressSanitizer runtime.
- * For larger allocations larger redzones are used.
- */
-static unsigned int optimal_redzone(unsigned int object_size)
-{
- return
- object_size <= 64 - 16 ? 16 :
- object_size <= 128 - 32 ? 32 :
- object_size <= 512 - 64 ? 64 :
- object_size <= 4096 - 128 ? 128 :
- object_size <= (1 << 14) - 256 ? 256 :
- object_size <= (1 << 15) - 512 ? 512 :
- object_size <= (1 << 16) - 1024 ? 1024 : 2048;
-}
-
-void kasan_cache_create(struct kmem_cache *cache, unsigned int *size,
- slab_flags_t *flags)
-{
- unsigned int orig_size = *size;
- int redzone_adjust;
-
- /* Add alloc meta. */
- cache->kasan_info.alloc_meta_offset = *size;
- *size += sizeof(struct kasan_alloc_meta);
-
- /* Add free meta. */
- if (cache->flags & SLAB_TYPESAFE_BY_RCU || cache->ctor ||
- cache->object_size < sizeof(struct kasan_free_meta)) {
- cache->kasan_info.free_meta_offset = *size;
- *size += sizeof(struct kasan_free_meta);
- }
- redzone_adjust = optimal_redzone(cache->object_size) -
- (*size - cache->object_size);
-
- if (redzone_adjust > 0)
- *size += redzone_adjust;
-
- *size = min_t(unsigned int, KMALLOC_MAX_SIZE,
- max(*size, cache->object_size +
- optimal_redzone(cache->object_size)));
-
- /*
- * If the metadata doesn't fit, don't enable KASAN at all.
- */
- if (*size <= cache->kasan_info.alloc_meta_offset ||
- *size <= cache->kasan_info.free_meta_offset) {
- cache->kasan_info.alloc_meta_offset = 0;
- cache->kasan_info.free_meta_offset = 0;
- *size = orig_size;
- return;
- }
-
- *flags |= SLAB_KASAN;
-}
-
-void kasan_cache_shrink(struct kmem_cache *cache)
-{
- quarantine_remove_cache(cache);
-}
-
-void kasan_cache_shutdown(struct kmem_cache *cache)
-{
- if (!__kmem_cache_empty(cache))
- quarantine_remove_cache(cache);
-}
-
-size_t kasan_metadata_size(struct kmem_cache *cache)
-{
- return (cache->kasan_info.alloc_meta_offset ?
- sizeof(struct kasan_alloc_meta) : 0) +
- (cache->kasan_info.free_meta_offset ?
- sizeof(struct kasan_free_meta) : 0);
-}
-
-void kasan_poison_slab(struct page *page)
-{
- kasan_poison_shadow(page_address(page),
- PAGE_SIZE << compound_order(page),
- KASAN_KMALLOC_REDZONE);
-}
-
-void kasan_unpoison_object_data(struct kmem_cache *cache, void *object)
-{
- kasan_unpoison_shadow(object, cache->object_size);
-}
-
-void kasan_poison_object_data(struct kmem_cache *cache, void *object)
-{
- kasan_poison_shadow(object,
- round_up(cache->object_size, KASAN_SHADOW_SCALE_SIZE),
- KASAN_KMALLOC_REDZONE);
-}
-
-static inline int in_irqentry_text(unsigned long ptr)
-{
- return (ptr >= (unsigned long)&__irqentry_text_start &&
- ptr < (unsigned long)&__irqentry_text_end) ||
- (ptr >= (unsigned long)&__softirqentry_text_start &&
- ptr < (unsigned long)&__softirqentry_text_end);
-}
-
-static inline void filter_irq_stacks(struct stack_trace *trace)
-{
- int i;
-
- if (!trace->nr_entries)
- return;
- for (i = 0; i < trace->nr_entries; i++)
- if (in_irqentry_text(trace->entries[i])) {
- /* Include the irqentry function into the stack. */
- trace->nr_entries = i + 1;
- break;
- }
-}
-
-static inline depot_stack_handle_t save_stack(gfp_t flags)
-{
- unsigned long entries[KASAN_STACK_DEPTH];
- struct stack_trace trace = {
- .nr_entries = 0,
- .entries = entries,
- .max_entries = KASAN_STACK_DEPTH,
- .skip = 0
- };
-
- save_stack_trace(&trace);
- filter_irq_stacks(&trace);
- if (trace.nr_entries != 0 &&
- trace.entries[trace.nr_entries-1] == ULONG_MAX)
- trace.nr_entries--;
-
- return depot_save_stack(&trace, flags);
-}
-
-static inline void set_track(struct kasan_track *track, gfp_t flags)
-{
- track->pid = current->pid;
- track->stack = save_stack(flags);
-}
-
-struct kasan_alloc_meta *get_alloc_info(struct kmem_cache *cache,
- const void *object)
-{
- BUILD_BUG_ON(sizeof(struct kasan_alloc_meta) > 32);
- return (void *)object + cache->kasan_info.alloc_meta_offset;
-}
-
-struct kasan_free_meta *get_free_info(struct kmem_cache *cache,
- const void *object)
-{
- BUILD_BUG_ON(sizeof(struct kasan_free_meta) > 32);
- return (void *)object + cache->kasan_info.free_meta_offset;
-}
-
-void kasan_init_slab_obj(struct kmem_cache *cache, const void *object)
-{
- struct kasan_alloc_meta *alloc_info;
-
- if (!(cache->flags & SLAB_KASAN))
- return;
-
- alloc_info = get_alloc_info(cache, object);
- __memset(alloc_info, 0, sizeof(*alloc_info));
-}
-
-void kasan_slab_alloc(struct kmem_cache *cache, void *object, gfp_t flags)
-{
- kasan_kmalloc(cache, object, cache->object_size, flags);
-}
-
-static bool __kasan_slab_free(struct kmem_cache *cache, void *object,
- unsigned long ip, bool quarantine)
-{
- s8 shadow_byte;
- unsigned long rounded_up_size;
-
- if (unlikely(nearest_obj(cache, virt_to_head_page(object), object) !=
- object)) {
- kasan_report_invalid_free(object, ip);
- return true;
- }
-
- /* RCU slabs could be legally used after free within the RCU period */
- if (unlikely(cache->flags & SLAB_TYPESAFE_BY_RCU))
- return false;
-
- shadow_byte = READ_ONCE(*(s8 *)kasan_mem_to_shadow(object));
- if (shadow_byte < 0 || shadow_byte >= KASAN_SHADOW_SCALE_SIZE) {
- kasan_report_invalid_free(object, ip);
- return true;
- }
-
- rounded_up_size = round_up(cache->object_size, KASAN_SHADOW_SCALE_SIZE);
- kasan_poison_shadow(object, rounded_up_size, KASAN_KMALLOC_FREE);
-
- if (!quarantine || unlikely(!(cache->flags & SLAB_KASAN)))
- return false;
-
- set_track(&get_alloc_info(cache, object)->free_track, GFP_NOWAIT);
- quarantine_put(get_free_info(cache, object), cache);
- return true;
-}
-
-bool kasan_slab_free(struct kmem_cache *cache, void *object, unsigned long ip)
-{
- return __kasan_slab_free(cache, object, ip, true);
-}
-
-void kasan_kmalloc(struct kmem_cache *cache, const void *object, size_t size,
- gfp_t flags)
-{
- unsigned long redzone_start;
- unsigned long redzone_end;
-
- if (gfpflags_allow_blocking(flags))
- quarantine_reduce();
-
- if (unlikely(object == NULL))
- return;
-
- redzone_start = round_up((unsigned long)(object + size),
- KASAN_SHADOW_SCALE_SIZE);
- redzone_end = round_up((unsigned long)object + cache->object_size,
- KASAN_SHADOW_SCALE_SIZE);
-
- kasan_unpoison_shadow(object, size);
- kasan_poison_shadow((void *)redzone_start, redzone_end - redzone_start,
- KASAN_KMALLOC_REDZONE);
-
- if (cache->flags & SLAB_KASAN)
- set_track(&get_alloc_info(cache, object)->alloc_track, flags);
-}
-EXPORT_SYMBOL(kasan_kmalloc);
-
-void kasan_kmalloc_large(const void *ptr, size_t size, gfp_t flags)
-{
- struct page *page;
- unsigned long redzone_start;
- unsigned long redzone_end;
-
- if (gfpflags_allow_blocking(flags))
- quarantine_reduce();
-
- if (unlikely(ptr == NULL))
- return;
-
- page = virt_to_page(ptr);
- redzone_start = round_up((unsigned long)(ptr + size),
- KASAN_SHADOW_SCALE_SIZE);
- redzone_end = (unsigned long)ptr + (PAGE_SIZE << compound_order(page));
-
- kasan_unpoison_shadow(ptr, size);
- kasan_poison_shadow((void *)redzone_start, redzone_end - redzone_start,
- KASAN_PAGE_REDZONE);
-}
-
-void kasan_krealloc(const void *object, size_t size, gfp_t flags)
-{
- struct page *page;
-
- if (unlikely(object == ZERO_SIZE_PTR))
- return;
-
- page = virt_to_head_page(object);
-
- if (unlikely(!PageSlab(page)))
- kasan_kmalloc_large(object, size, flags);
- else
- kasan_kmalloc(page->slab_cache, object, size, flags);
-}
-
-void kasan_poison_kfree(void *ptr, unsigned long ip)
-{
- struct page *page;
-
- page = virt_to_head_page(ptr);
-
- if (unlikely(!PageSlab(page))) {
- if (ptr != page_address(page)) {
- kasan_report_invalid_free(ptr, ip);
- return;
- }
- kasan_poison_shadow(ptr, PAGE_SIZE << compound_order(page),
- KASAN_FREE_PAGE);
- } else {
- __kasan_slab_free(page->slab_cache, ptr, ip, false);
- }
-}
-
-void kasan_kfree_large(void *ptr, unsigned long ip)
-{
- if (ptr != page_address(virt_to_head_page(ptr)))
- kasan_report_invalid_free(ptr, ip);
- /* The object will be poisoned by page_alloc. */
-}
-
-int kasan_module_alloc(void *addr, size_t size)
-{
- void *ret;
- size_t scaled_size;
- size_t shadow_size;
- unsigned long shadow_start;
-
- shadow_start = (unsigned long)kasan_mem_to_shadow(addr);
- scaled_size = (size + KASAN_SHADOW_MASK) >> KASAN_SHADOW_SCALE_SHIFT;
- shadow_size = round_up(scaled_size, PAGE_SIZE);
-
- if (WARN_ON(!PAGE_ALIGNED(shadow_start)))
- return -EINVAL;
-
- ret = __vmalloc_node_range(shadow_size, 1, shadow_start,
- shadow_start + shadow_size,
- GFP_KERNEL | __GFP_ZERO,
- PAGE_KERNEL, VM_NO_GUARD, NUMA_NO_NODE,
- __builtin_return_address(0));
-
- if (ret) {
- find_vm_area(addr)->flags |= VM_KASAN;
- kmemleak_ignore(ret);
- return 0;
- }
-
- return -ENOMEM;
-}
-
-void kasan_free_shadow(const struct vm_struct *vm)
-{
- if (vm->flags & VM_KASAN)
- vfree(kasan_mem_to_shadow(vm->addr));
-}
-
-static void register_global(struct kasan_global *global)
-{
- size_t aligned_size = round_up(global->size, KASAN_SHADOW_SCALE_SIZE);
-
- kasan_unpoison_shadow(global->beg, global->size);
-
- kasan_poison_shadow(global->beg + aligned_size,
- global->size_with_redzone - aligned_size,
- KASAN_GLOBAL_REDZONE);
-}
-
-void __asan_register_globals(struct kasan_global *globals, size_t size)
-{
- int i;
-
- for (i = 0; i < size; i++)
- register_global(&globals[i]);
-}
-EXPORT_SYMBOL(__asan_register_globals);
-
-void __asan_unregister_globals(struct kasan_global *globals, size_t size)
-{
-}
-EXPORT_SYMBOL(__asan_unregister_globals);
-
-#define DEFINE_ASAN_LOAD_STORE(size) \
- void __asan_load##size(unsigned long addr) \
- { \
- check_memory_region_inline(addr, size, false, _RET_IP_);\
- } \
- EXPORT_SYMBOL(__asan_load##size); \
- __alias(__asan_load##size) \
- void __asan_load##size##_noabort(unsigned long); \
- EXPORT_SYMBOL(__asan_load##size##_noabort); \
- void __asan_store##size(unsigned long addr) \
- { \
- check_memory_region_inline(addr, size, true, _RET_IP_); \
- } \
- EXPORT_SYMBOL(__asan_store##size); \
- __alias(__asan_store##size) \
- void __asan_store##size##_noabort(unsigned long); \
- EXPORT_SYMBOL(__asan_store##size##_noabort)
-
-DEFINE_ASAN_LOAD_STORE(1);
-DEFINE_ASAN_LOAD_STORE(2);
-DEFINE_ASAN_LOAD_STORE(4);
-DEFINE_ASAN_LOAD_STORE(8);
-DEFINE_ASAN_LOAD_STORE(16);
-
-void __asan_loadN(unsigned long addr, size_t size)
-{
- check_memory_region(addr, size, false, _RET_IP_);
-}
-EXPORT_SYMBOL(__asan_loadN);
-
-__alias(__asan_loadN)
-void __asan_loadN_noabort(unsigned long, size_t);
-EXPORT_SYMBOL(__asan_loadN_noabort);
-
-void __asan_storeN(unsigned long addr, size_t size)
-{
- check_memory_region(addr, size, true, _RET_IP_);
-}
-EXPORT_SYMBOL(__asan_storeN);
-
-__alias(__asan_storeN)
-void __asan_storeN_noabort(unsigned long, size_t);
-EXPORT_SYMBOL(__asan_storeN_noabort);
-
-/* to shut up compiler complaints */
-void __asan_handle_no_return(void) {}
-EXPORT_SYMBOL(__asan_handle_no_return);
-
-/* Emitted by compiler to poison large objects when they go out of scope. */
-void __asan_poison_stack_memory(const void *addr, size_t size)
-{
- /*
- * Addr is KASAN_SHADOW_SCALE_SIZE-aligned and the object is surrounded
- * by redzones, so we simply round up size to simplify logic.
- */
- kasan_poison_shadow(addr, round_up(size, KASAN_SHADOW_SCALE_SIZE),
- KASAN_USE_AFTER_SCOPE);
-}
-EXPORT_SYMBOL(__asan_poison_stack_memory);
-
-/* Emitted by compiler to unpoison large objects when they go into scope. */
-void __asan_unpoison_stack_memory(const void *addr, size_t size)
-{
- kasan_unpoison_shadow(addr, size);
-}
-EXPORT_SYMBOL(__asan_unpoison_stack_memory);
-
-/* Emitted by compiler to poison alloca()ed objects. */
-void __asan_alloca_poison(unsigned long addr, size_t size)
-{
- size_t rounded_up_size = round_up(size, KASAN_SHADOW_SCALE_SIZE);
- size_t padding_size = round_up(size, KASAN_ALLOCA_REDZONE_SIZE) -
- rounded_up_size;
- size_t rounded_down_size = round_down(size, KASAN_SHADOW_SCALE_SIZE);
-
- const void *left_redzone = (const void *)(addr -
- KASAN_ALLOCA_REDZONE_SIZE);
- const void *right_redzone = (const void *)(addr + rounded_up_size);
-
- WARN_ON(!IS_ALIGNED(addr, KASAN_ALLOCA_REDZONE_SIZE));
-
- kasan_unpoison_shadow((const void *)(addr + rounded_down_size),
- size - rounded_down_size);
- kasan_poison_shadow(left_redzone, KASAN_ALLOCA_REDZONE_SIZE,
- KASAN_ALLOCA_LEFT);
- kasan_poison_shadow(right_redzone,
- padding_size + KASAN_ALLOCA_REDZONE_SIZE,
- KASAN_ALLOCA_RIGHT);
-}
-EXPORT_SYMBOL(__asan_alloca_poison);
-
-/* Emitted by compiler to unpoison alloca()ed areas when the stack unwinds. */
-void __asan_allocas_unpoison(const void *stack_top, const void *stack_bottom)
-{
- if (unlikely(!stack_top || stack_top > stack_bottom))
- return;
-
- kasan_unpoison_shadow(stack_top, stack_bottom - stack_top);
-}
-EXPORT_SYMBOL(__asan_allocas_unpoison);
-
-/* Emitted by the compiler to [un]poison local variables. */
-#define DEFINE_ASAN_SET_SHADOW(byte) \
- void __asan_set_shadow_##byte(const void *addr, size_t size) \
- { \
- __memset((void *)addr, 0x##byte, size); \
- } \
- EXPORT_SYMBOL(__asan_set_shadow_##byte)
-
-DEFINE_ASAN_SET_SHADOW(00);
-DEFINE_ASAN_SET_SHADOW(f1);
-DEFINE_ASAN_SET_SHADOW(f2);
-DEFINE_ASAN_SET_SHADOW(f3);
-DEFINE_ASAN_SET_SHADOW(f5);
-DEFINE_ASAN_SET_SHADOW(f8);
-
-#ifdef CONFIG_MEMORY_HOTPLUG
-static bool shadow_mapped(unsigned long addr)
-{
- pgd_t *pgd = pgd_offset_k(addr);
- p4d_t *p4d;
- pud_t *pud;
- pmd_t *pmd;
- pte_t *pte;
-
- if (pgd_none(*pgd))
- return false;
- p4d = p4d_offset(pgd, addr);
- if (p4d_none(*p4d))
- return false;
- pud = pud_offset(p4d, addr);
- if (pud_none(*pud))
- return false;
-
- /*
- * We can't use pud_large() or pud_huge(), the first one is
- * arch-specific, the last one depends on HUGETLB_PAGE. So let's abuse
- * pud_bad(), if pud is bad then it's bad because it's huge.
- */
- if (pud_bad(*pud))
- return true;
- pmd = pmd_offset(pud, addr);
- if (pmd_none(*pmd))
- return false;
-
- if (pmd_bad(*pmd))
- return true;
- pte = pte_offset_kernel(pmd, addr);
- return !pte_none(*pte);
-}
-
-static int __meminit kasan_mem_notifier(struct notifier_block *nb,
- unsigned long action, void *data)
-{
- struct memory_notify *mem_data = data;
- unsigned long nr_shadow_pages, start_kaddr, shadow_start;
- unsigned long shadow_end, shadow_size;
-
- nr_shadow_pages = mem_data->nr_pages >> KASAN_SHADOW_SCALE_SHIFT;
- start_kaddr = (unsigned long)pfn_to_kaddr(mem_data->start_pfn);
- shadow_start = (unsigned long)kasan_mem_to_shadow((void *)start_kaddr);
- shadow_size = nr_shadow_pages << PAGE_SHIFT;
- shadow_end = shadow_start + shadow_size;
-
- if (WARN_ON(mem_data->nr_pages % KASAN_SHADOW_SCALE_SIZE) ||
- WARN_ON(start_kaddr % (KASAN_SHADOW_SCALE_SIZE << PAGE_SHIFT)))
- return NOTIFY_BAD;
-
- switch (action) {
- case MEM_GOING_ONLINE: {
- void *ret;
-
- /*
- * If shadow is mapped already than it must have been mapped
- * during the boot. This could happen if we onlining previously
- * offlined memory.
- */
- if (shadow_mapped(shadow_start))
- return NOTIFY_OK;
-
- ret = __vmalloc_node_range(shadow_size, PAGE_SIZE, shadow_start,
- shadow_end, GFP_KERNEL,
- PAGE_KERNEL, VM_NO_GUARD,
- pfn_to_nid(mem_data->start_pfn),
- __builtin_return_address(0));
- if (!ret)
- return NOTIFY_BAD;
-
- kmemleak_ignore(ret);
- return NOTIFY_OK;
- }
- case MEM_CANCEL_ONLINE:
- case MEM_OFFLINE: {
- struct vm_struct *vm;
-
- /*
- * shadow_start was either mapped during boot by kasan_init()
- * or during memory online by __vmalloc_node_range().
- * In the latter case we can use vfree() to free shadow.
- * Non-NULL result of the find_vm_area() will tell us if
- * that was the second case.
- *
- * Currently it's not possible to free shadow mapped
- * during boot by kasan_init(). It's because the code
- * to do that hasn't been written yet. So we'll just
- * leak the memory.
- */
- vm = find_vm_area((void *)shadow_start);
- if (vm)
- vfree((void *)shadow_start);
- }
- }
-
- return NOTIFY_OK;
-}
-
-static int __init kasan_memhotplug_init(void)
-{
- hotplug_memory_notifier(kasan_mem_notifier, 0);
-
- return 0;
-}
-
-core_initcall(kasan_memhotplug_init);
-#endif
diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index c12dcfd..3ce956e 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -8,10 +8,22 @@
#define KASAN_SHADOW_SCALE_SIZE (1UL << KASAN_SHADOW_SCALE_SHIFT)
#define KASAN_SHADOW_MASK (KASAN_SHADOW_SCALE_SIZE - 1)
+#define KASAN_TAG_KERNEL 0xFF /* native kernel pointers tag */
+#define KASAN_TAG_INVALID 0xFE /* inaccessible memory tag */
+#define KASAN_TAG_MAX 0xFD /* maximum value for random tags */
+
+#ifdef CONFIG_KASAN_GENERIC
#define KASAN_FREE_PAGE 0xFF /* page was freed */
#define KASAN_PAGE_REDZONE 0xFE /* redzone for kmalloc_large allocations */
#define KASAN_KMALLOC_REDZONE 0xFC /* redzone inside slub object */
#define KASAN_KMALLOC_FREE 0xFB /* object was freed (kmem_cache_free/kfree) */
+#else
+#define KASAN_FREE_PAGE KASAN_TAG_INVALID
+#define KASAN_PAGE_REDZONE KASAN_TAG_INVALID
+#define KASAN_KMALLOC_REDZONE KASAN_TAG_INVALID
+#define KASAN_KMALLOC_FREE KASAN_TAG_INVALID
+#endif
+
#define KASAN_GLOBAL_REDZONE 0xFA /* redzone for global variable */
/*
@@ -22,7 +34,6 @@
#define KASAN_STACK_MID 0xF2
#define KASAN_STACK_RIGHT 0xF3
#define KASAN_STACK_PARTIAL 0xF4
-#define KASAN_USE_AFTER_SCOPE 0xF8
/*
* alloca redzone shadow values
@@ -105,11 +116,25 @@ static inline const void *kasan_shadow_to_mem(const void *shadow_addr)
<< KASAN_SHADOW_SCALE_SHIFT);
}
+static inline bool addr_has_shadow(const void *addr)
+{
+ return (addr >= kasan_shadow_to_mem((void *)KASAN_SHADOW_START));
+}
+
+void kasan_poison_shadow(const void *address, size_t size, u8 value);
+
+void check_memory_region(unsigned long addr, size_t size, bool write,
+ unsigned long ret_ip);
+
+void *find_first_bad_addr(void *addr, size_t size);
+const char *get_bug_type(struct kasan_access_info *info);
+
void kasan_report(unsigned long addr, size_t size,
bool is_write, unsigned long ip);
void kasan_report_invalid_free(void *object, unsigned long ip);
-#if defined(CONFIG_SLAB) || defined(CONFIG_SLUB)
+#if defined(CONFIG_KASAN_GENERIC) && \
+ (defined(CONFIG_SLAB) || defined(CONFIG_SLUB))
void quarantine_put(struct kasan_free_meta *info, struct kmem_cache *cache);
void quarantine_reduce(void);
void quarantine_remove_cache(struct kmem_cache *cache);
@@ -120,6 +145,40 @@ static inline void quarantine_reduce(void) { }
static inline void quarantine_remove_cache(struct kmem_cache *cache) { }
#endif
+#ifdef CONFIG_KASAN_SW_TAGS
+
+void print_tags(u8 addr_tag, const void *addr);
+
+u8 random_tag(void);
+
+#else
+
+static inline void print_tags(u8 addr_tag, const void *addr) { }
+
+static inline u8 random_tag(void)
+{
+ return 0;
+}
+
+#endif
+
+#ifndef arch_kasan_set_tag
+static inline const void *arch_kasan_set_tag(const void *addr, u8 tag)
+{
+ return addr;
+}
+#endif
+#ifndef arch_kasan_reset_tag
+#define arch_kasan_reset_tag(addr) ((void *)(addr))
+#endif
+#ifndef arch_kasan_get_tag
+#define arch_kasan_get_tag(addr) 0
+#endif
+
+#define set_tag(addr, tag) ((void *)arch_kasan_set_tag((addr), (tag)))
+#define reset_tag(addr) ((void *)arch_kasan_reset_tag(addr))
+#define get_tag(addr) arch_kasan_get_tag(addr)
+
/*
* Exported functions for interfaces called from assembly or from generated
* code. Declarations here to avoid warning about missing declarations.
@@ -130,8 +189,6 @@ void __asan_unregister_globals(struct kasan_global *globals, size_t size);
void __asan_loadN(unsigned long addr, size_t size);
void __asan_storeN(unsigned long addr, size_t size);
void __asan_handle_no_return(void);
-void __asan_poison_stack_memory(const void *addr, size_t size);
-void __asan_unpoison_stack_memory(const void *addr, size_t size);
void __asan_alloca_poison(unsigned long addr, size_t size);
void __asan_allocas_unpoison(const void *stack_top, const void *stack_bottom);
diff --git a/mm/kasan/quarantine.c b/mm/kasan/quarantine.c
index 3a8ddf8..57334ef 100644
--- a/mm/kasan/quarantine.c
+++ b/mm/kasan/quarantine.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* KASAN quarantine.
*
@@ -103,7 +104,7 @@ static int quarantine_head;
static int quarantine_tail;
/* Total size of all objects in global_quarantine across all batches. */
static unsigned long quarantine_size;
-static DEFINE_SPINLOCK(quarantine_lock);
+static DEFINE_RAW_SPINLOCK(quarantine_lock);
DEFINE_STATIC_SRCU(remove_cache_srcu);
/* Maximum size of the global queue. */
@@ -190,7 +191,7 @@ void quarantine_put(struct kasan_free_meta *info, struct kmem_cache *cache)
if (unlikely(q->bytes > QUARANTINE_PERCPU_SIZE)) {
qlist_move_all(q, &temp);
- spin_lock(&quarantine_lock);
+ raw_spin_lock(&quarantine_lock);
WRITE_ONCE(quarantine_size, quarantine_size + temp.bytes);
qlist_move_all(&temp, &global_quarantine[quarantine_tail]);
if (global_quarantine[quarantine_tail].bytes >=
@@ -203,7 +204,7 @@ void quarantine_put(struct kasan_free_meta *info, struct kmem_cache *cache)
if (new_tail != quarantine_head)
quarantine_tail = new_tail;
}
- spin_unlock(&quarantine_lock);
+ raw_spin_unlock(&quarantine_lock);
}
local_irq_restore(flags);
@@ -230,7 +231,7 @@ void quarantine_reduce(void)
* expected case).
*/
srcu_idx = srcu_read_lock(&remove_cache_srcu);
- spin_lock_irqsave(&quarantine_lock, flags);
+ raw_spin_lock_irqsave(&quarantine_lock, flags);
/*
* Update quarantine size in case of hotplug. Allocate a fraction of
@@ -254,7 +255,7 @@ void quarantine_reduce(void)
quarantine_head = 0;
}
- spin_unlock_irqrestore(&quarantine_lock, flags);
+ raw_spin_unlock_irqrestore(&quarantine_lock, flags);
qlist_free_all(&to_free, NULL);
srcu_read_unlock(&remove_cache_srcu, srcu_idx);
@@ -310,17 +311,17 @@ void quarantine_remove_cache(struct kmem_cache *cache)
*/
on_each_cpu(per_cpu_remove_cache, cache, 1);
- spin_lock_irqsave(&quarantine_lock, flags);
+ raw_spin_lock_irqsave(&quarantine_lock, flags);
for (i = 0; i < QUARANTINE_BATCHES; i++) {
if (qlist_empty(&global_quarantine[i]))
continue;
qlist_move_cache(&global_quarantine[i], &to_free, cache);
/* Scanning whole quarantine can take a while. */
- spin_unlock_irqrestore(&quarantine_lock, flags);
+ raw_spin_unlock_irqrestore(&quarantine_lock, flags);
cond_resched();
- spin_lock_irqsave(&quarantine_lock, flags);
+ raw_spin_lock_irqsave(&quarantine_lock, flags);
}
- spin_unlock_irqrestore(&quarantine_lock, flags);
+ raw_spin_unlock_irqrestore(&quarantine_lock, flags);
qlist_free_all(&to_free, cache);
diff --git a/mm/kasan/report.c b/mm/kasan/report.c
index 5c169aa..0772820 100644
--- a/mm/kasan/report.c
+++ b/mm/kasan/report.c
@@ -1,5 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
/*
- * This file contains error reporting code.
+ * This file contains common generic and tag-based KASAN error reporting code.
*
* Copyright (c) 2014 Samsung Electronics Co., Ltd.
* Author: Andrey Ryabinin <ryabinin.a.a@gmail.com>
@@ -39,129 +40,43 @@
#define SHADOW_BYTES_PER_ROW (SHADOW_BLOCKS_PER_ROW * SHADOW_BYTES_PER_BLOCK)
#define SHADOW_ROWS_AROUND_ADDR 2
-static const void *find_first_bad_addr(const void *addr, size_t size)
+static unsigned long kasan_flags;
+
+#define KASAN_BIT_REPORTED 0
+#define KASAN_BIT_MULTI_SHOT 1
+
+bool kasan_save_enable_multi_shot(void)
{
- u8 shadow_val = *(u8 *)kasan_mem_to_shadow(addr);
- const void *first_bad_addr = addr;
-
- while (!shadow_val && first_bad_addr < addr + size) {
- first_bad_addr += KASAN_SHADOW_SCALE_SIZE;
- shadow_val = *(u8 *)kasan_mem_to_shadow(first_bad_addr);
- }
- return first_bad_addr;
+ return test_and_set_bit(KASAN_BIT_MULTI_SHOT, &kasan_flags);
}
+EXPORT_SYMBOL_GPL(kasan_save_enable_multi_shot);
-static bool addr_has_shadow(struct kasan_access_info *info)
+void kasan_restore_multi_shot(bool enabled)
{
- return (info->access_addr >=
- kasan_shadow_to_mem((void *)KASAN_SHADOW_START));
+ if (!enabled)
+ clear_bit(KASAN_BIT_MULTI_SHOT, &kasan_flags);
}
+EXPORT_SYMBOL_GPL(kasan_restore_multi_shot);
-static const char *get_shadow_bug_type(struct kasan_access_info *info)
+static int __init kasan_set_multi_shot(char *str)
{
- const char *bug_type = "unknown-crash";
- u8 *shadow_addr;
-
- info->first_bad_addr = find_first_bad_addr(info->access_addr,
- info->access_size);
-
- shadow_addr = (u8 *)kasan_mem_to_shadow(info->first_bad_addr);
-
- /*
- * If shadow byte value is in [0, KASAN_SHADOW_SCALE_SIZE) we can look
- * at the next shadow byte to determine the type of the bad access.
- */
- if (*shadow_addr > 0 && *shadow_addr <= KASAN_SHADOW_SCALE_SIZE - 1)
- shadow_addr++;
-
- switch (*shadow_addr) {
- case 0 ... KASAN_SHADOW_SCALE_SIZE - 1:
- /*
- * In theory it's still possible to see these shadow values
- * due to a data race in the kernel code.
- */
- bug_type = "out-of-bounds";
- break;
- case KASAN_PAGE_REDZONE:
- case KASAN_KMALLOC_REDZONE:
- bug_type = "slab-out-of-bounds";
- break;
- case KASAN_GLOBAL_REDZONE:
- bug_type = "global-out-of-bounds";
- break;
- case KASAN_STACK_LEFT:
- case KASAN_STACK_MID:
- case KASAN_STACK_RIGHT:
- case KASAN_STACK_PARTIAL:
- bug_type = "stack-out-of-bounds";
- break;
- case KASAN_FREE_PAGE:
- case KASAN_KMALLOC_FREE:
- bug_type = "use-after-free";
- break;
- case KASAN_USE_AFTER_SCOPE:
- bug_type = "use-after-scope";
- break;
- case KASAN_ALLOCA_LEFT:
- case KASAN_ALLOCA_RIGHT:
- bug_type = "alloca-out-of-bounds";
- break;
- }
-
- return bug_type;
+ set_bit(KASAN_BIT_MULTI_SHOT, &kasan_flags);
+ return 1;
}
-
-static const char *get_wild_bug_type(struct kasan_access_info *info)
-{
- const char *bug_type = "unknown-crash";
-
- if ((unsigned long)info->access_addr < PAGE_SIZE)
- bug_type = "null-ptr-deref";
- else if ((unsigned long)info->access_addr < TASK_SIZE)
- bug_type = "user-memory-access";
- else
- bug_type = "wild-memory-access";
-
- return bug_type;
-}
-
-static const char *get_bug_type(struct kasan_access_info *info)
-{
- if (addr_has_shadow(info))
- return get_shadow_bug_type(info);
- return get_wild_bug_type(info);
-}
+__setup("kasan_multi_shot", kasan_set_multi_shot);
static void print_error_description(struct kasan_access_info *info)
{
- const char *bug_type = get_bug_type(info);
-
pr_err("BUG: KASAN: %s in %pS\n",
- bug_type, (void *)info->ip);
+ get_bug_type(info), (void *)info->ip);
pr_err("%s of size %zu at addr %px by task %s/%d\n",
info->is_write ? "Write" : "Read", info->access_size,
info->access_addr, current->comm, task_pid_nr(current));
}
-static inline bool kernel_or_module_addr(const void *addr)
-{
- if (addr >= (void *)_stext && addr < (void *)_end)
- return true;
- if (is_module_address((unsigned long)addr))
- return true;
- return false;
-}
-
-static inline bool init_task_stack_addr(const void *addr)
-{
- return addr >= (void *)&init_thread_union.stack &&
- (addr <= (void *)&init_thread_union.stack +
- sizeof(init_thread_union.stack));
-}
-
static DEFINE_SPINLOCK(report_lock);
-static void kasan_start_report(unsigned long *flags)
+static void start_report(unsigned long *flags)
{
/*
* Make sure we don't end up in loop.
@@ -171,7 +86,7 @@ static void kasan_start_report(unsigned long *flags)
pr_err("==================================================================\n");
}
-static void kasan_end_report(unsigned long *flags)
+static void end_report(unsigned long *flags)
{
pr_err("==================================================================\n");
add_taint(TAINT_BAD_PAGE, LOCKDEP_NOW_UNRELIABLE);
@@ -249,6 +164,22 @@ static void describe_object(struct kmem_cache *cache, void *object,
describe_object_addr(cache, object, addr);
}
+static inline bool kernel_or_module_addr(const void *addr)
+{
+ if (addr >= (void *)_stext && addr < (void *)_end)
+ return true;
+ if (is_module_address((unsigned long)addr))
+ return true;
+ return false;
+}
+
+static inline bool init_task_stack_addr(const void *addr)
+{
+ return addr >= (void *)&init_thread_union.stack &&
+ (addr <= (void *)&init_thread_union.stack +
+ sizeof(init_thread_union.stack));
+}
+
static void print_address_description(void *addr)
{
struct page *page = addr_to_page(addr);
@@ -326,65 +257,7 @@ static void print_shadow_for_address(const void *addr)
}
}
-void kasan_report_invalid_free(void *object, unsigned long ip)
-{
- unsigned long flags;
-
- kasan_start_report(&flags);
- pr_err("BUG: KASAN: double-free or invalid-free in %pS\n", (void *)ip);
- pr_err("\n");
- print_address_description(object);
- pr_err("\n");
- print_shadow_for_address(object);
- kasan_end_report(&flags);
-}
-
-static void kasan_report_error(struct kasan_access_info *info)
-{
- unsigned long flags;
-
- kasan_start_report(&flags);
-
- print_error_description(info);
- pr_err("\n");
-
- if (!addr_has_shadow(info)) {
- dump_stack();
- } else {
- print_address_description((void *)info->access_addr);
- pr_err("\n");
- print_shadow_for_address(info->first_bad_addr);
- }
-
- kasan_end_report(&flags);
-}
-
-static unsigned long kasan_flags;
-
-#define KASAN_BIT_REPORTED 0
-#define KASAN_BIT_MULTI_SHOT 1
-
-bool kasan_save_enable_multi_shot(void)
-{
- return test_and_set_bit(KASAN_BIT_MULTI_SHOT, &kasan_flags);
-}
-EXPORT_SYMBOL_GPL(kasan_save_enable_multi_shot);
-
-void kasan_restore_multi_shot(bool enabled)
-{
- if (!enabled)
- clear_bit(KASAN_BIT_MULTI_SHOT, &kasan_flags);
-}
-EXPORT_SYMBOL_GPL(kasan_restore_multi_shot);
-
-static int __init kasan_set_multi_shot(char *str)
-{
- set_bit(KASAN_BIT_MULTI_SHOT, &kasan_flags);
- return 1;
-}
-__setup("kasan_multi_shot", kasan_set_multi_shot);
-
-static inline bool kasan_report_enabled(void)
+static bool report_enabled(void)
{
if (current->kasan_depth)
return false;
@@ -393,59 +266,59 @@ static inline bool kasan_report_enabled(void)
return !test_and_set_bit(KASAN_BIT_REPORTED, &kasan_flags);
}
-void kasan_report(unsigned long addr, size_t size,
- bool is_write, unsigned long ip)
+void kasan_report_invalid_free(void *object, unsigned long ip)
+{
+ unsigned long flags;
+
+ start_report(&flags);
+ pr_err("BUG: KASAN: double-free or invalid-free in %pS\n", (void *)ip);
+ print_tags(get_tag(object), reset_tag(object));
+ object = reset_tag(object);
+ pr_err("\n");
+ print_address_description(object);
+ pr_err("\n");
+ print_shadow_for_address(object);
+ end_report(&flags);
+}
+
+void __kasan_report(unsigned long addr, size_t size, bool is_write, unsigned long ip)
{
struct kasan_access_info info;
+ void *tagged_addr;
+ void *untagged_addr;
+ unsigned long flags;
- if (likely(!kasan_report_enabled()))
+ if (likely(!report_enabled()))
return;
disable_trace_on_warning();
- info.access_addr = (void *)addr;
- info.first_bad_addr = (void *)addr;
+ tagged_addr = (void *)addr;
+ untagged_addr = reset_tag(tagged_addr);
+
+ info.access_addr = tagged_addr;
+ if (addr_has_shadow(untagged_addr))
+ info.first_bad_addr = find_first_bad_addr(tagged_addr, size);
+ else
+ info.first_bad_addr = untagged_addr;
info.access_size = size;
info.is_write = is_write;
info.ip = ip;
- kasan_report_error(&info);
+ start_report(&flags);
+
+ print_error_description(&info);
+ if (addr_has_shadow(untagged_addr))
+ print_tags(get_tag(tagged_addr), info.first_bad_addr);
+ pr_err("\n");
+
+ if (addr_has_shadow(untagged_addr)) {
+ print_address_description(untagged_addr);
+ pr_err("\n");
+ print_shadow_for_address(info.first_bad_addr);
+ } else {
+ dump_stack();
+ }
+
+ end_report(&flags);
}
-
-
-#define DEFINE_ASAN_REPORT_LOAD(size) \
-void __asan_report_load##size##_noabort(unsigned long addr) \
-{ \
- kasan_report(addr, size, false, _RET_IP_); \
-} \
-EXPORT_SYMBOL(__asan_report_load##size##_noabort)
-
-#define DEFINE_ASAN_REPORT_STORE(size) \
-void __asan_report_store##size##_noabort(unsigned long addr) \
-{ \
- kasan_report(addr, size, true, _RET_IP_); \
-} \
-EXPORT_SYMBOL(__asan_report_store##size##_noabort)
-
-DEFINE_ASAN_REPORT_LOAD(1);
-DEFINE_ASAN_REPORT_LOAD(2);
-DEFINE_ASAN_REPORT_LOAD(4);
-DEFINE_ASAN_REPORT_LOAD(8);
-DEFINE_ASAN_REPORT_LOAD(16);
-DEFINE_ASAN_REPORT_STORE(1);
-DEFINE_ASAN_REPORT_STORE(2);
-DEFINE_ASAN_REPORT_STORE(4);
-DEFINE_ASAN_REPORT_STORE(8);
-DEFINE_ASAN_REPORT_STORE(16);
-
-void __asan_report_load_n_noabort(unsigned long addr, size_t size)
-{
- kasan_report(addr, size, false, _RET_IP_);
-}
-EXPORT_SYMBOL(__asan_report_load_n_noabort);
-
-void __asan_report_store_n_noabort(unsigned long addr, size_t size)
-{
- kasan_report(addr, size, true, _RET_IP_);
-}
-EXPORT_SYMBOL(__asan_report_store_n_noabort);
diff --git a/mm/kasan/tags.c b/mm/kasan/tags.c
new file mode 100644
index 0000000..63fca31
--- /dev/null
+++ b/mm/kasan/tags.c
@@ -0,0 +1,161 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * This file contains core tag-based KASAN code.
+ *
+ * Copyright (c) 2018 Google, Inc.
+ * Author: Andrey Konovalov <andreyknvl@google.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#define DISABLE_BRANCH_PROFILING
+
+#include <linux/export.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/kasan.h>
+#include <linux/kernel.h>
+#include <linux/kmemleak.h>
+#include <linux/linkage.h>
+#include <linux/memblock.h>
+#include <linux/memory.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/printk.h>
+#include <linux/random.h>
+#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
+#include <linux/slab.h>
+#include <linux/stacktrace.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/vmalloc.h>
+#include <linux/bug.h>
+
+#include "kasan.h"
+#include "../slab.h"
+
+static DEFINE_PER_CPU(u32, prng_state);
+
+void kasan_init_tags(void)
+{
+ int cpu;
+
+ for_each_possible_cpu(cpu)
+ per_cpu(prng_state, cpu) = (u32)get_cycles();
+}
+
+/*
+ * If a preemption happens between this_cpu_read and this_cpu_write, the only
+ * side effect is that we'll give a few allocated in different contexts objects
+ * the same tag. Since tag-based KASAN is meant to be used a probabilistic
+ * bug-detection debug feature, this doesn't have significant negative impact.
+ *
+ * Ideally the tags use strong randomness to prevent any attempts to predict
+ * them during explicit exploit attempts. But strong randomness is expensive,
+ * and we did an intentional trade-off to use a PRNG. This non-atomic RMW
+ * sequence has in fact positive effect, since interrupts that randomly skew
+ * PRNG at unpredictable points do only good.
+ */
+u8 random_tag(void)
+{
+ u32 state = this_cpu_read(prng_state);
+
+ state = 1664525 * state + 1013904223;
+ this_cpu_write(prng_state, state);
+
+ return (u8)(state % (KASAN_TAG_MAX + 1));
+}
+
+void *kasan_reset_tag(const void *addr)
+{
+ return reset_tag(addr);
+}
+
+void check_memory_region(unsigned long addr, size_t size, bool write,
+ unsigned long ret_ip)
+{
+ u8 tag;
+ u8 *shadow_first, *shadow_last, *shadow;
+ void *untagged_addr;
+
+ if (unlikely(size == 0))
+ return;
+
+ tag = get_tag((const void *)addr);
+
+ /*
+ * Ignore accesses for pointers tagged with 0xff (native kernel
+ * pointer tag) to suppress false positives caused by kmap.
+ *
+ * Some kernel code was written to account for archs that don't keep
+ * high memory mapped all the time, but rather map and unmap particular
+ * pages when needed. Instead of storing a pointer to the kernel memory,
+ * this code saves the address of the page structure and offset within
+ * that page for later use. Those pages are then mapped and unmapped
+ * with kmap/kunmap when necessary and virt_to_page is used to get the
+ * virtual address of the page. For arm64 (that keeps the high memory
+ * mapped all the time), kmap is turned into a page_address call.
+
+ * The issue is that with use of the page_address + virt_to_page
+ * sequence the top byte value of the original pointer gets lost (gets
+ * set to KASAN_TAG_KERNEL (0xFF)).
+ */
+ if (tag == KASAN_TAG_KERNEL)
+ return;
+
+ untagged_addr = reset_tag((const void *)addr);
+ if (unlikely(untagged_addr <
+ kasan_shadow_to_mem((void *)KASAN_SHADOW_START))) {
+ kasan_report(addr, size, write, ret_ip);
+ return;
+ }
+ shadow_first = kasan_mem_to_shadow(untagged_addr);
+ shadow_last = kasan_mem_to_shadow(untagged_addr + size - 1);
+ for (shadow = shadow_first; shadow <= shadow_last; shadow++) {
+ if (*shadow != tag) {
+ kasan_report(addr, size, write, ret_ip);
+ return;
+ }
+ }
+}
+
+#define DEFINE_HWASAN_LOAD_STORE(size) \
+ void __hwasan_load##size##_noabort(unsigned long addr) \
+ { \
+ check_memory_region(addr, size, false, _RET_IP_); \
+ } \
+ EXPORT_SYMBOL(__hwasan_load##size##_noabort); \
+ void __hwasan_store##size##_noabort(unsigned long addr) \
+ { \
+ check_memory_region(addr, size, true, _RET_IP_); \
+ } \
+ EXPORT_SYMBOL(__hwasan_store##size##_noabort)
+
+DEFINE_HWASAN_LOAD_STORE(1);
+DEFINE_HWASAN_LOAD_STORE(2);
+DEFINE_HWASAN_LOAD_STORE(4);
+DEFINE_HWASAN_LOAD_STORE(8);
+DEFINE_HWASAN_LOAD_STORE(16);
+
+void __hwasan_loadN_noabort(unsigned long addr, unsigned long size)
+{
+ check_memory_region(addr, size, false, _RET_IP_);
+}
+EXPORT_SYMBOL(__hwasan_loadN_noabort);
+
+void __hwasan_storeN_noabort(unsigned long addr, unsigned long size)
+{
+ check_memory_region(addr, size, true, _RET_IP_);
+}
+EXPORT_SYMBOL(__hwasan_storeN_noabort);
+
+void __hwasan_tag_memory(unsigned long addr, u8 tag, unsigned long size)
+{
+ kasan_poison_shadow((void *)addr, size, tag);
+}
+EXPORT_SYMBOL(__hwasan_tag_memory);
diff --git a/mm/kasan/tags_report.c b/mm/kasan/tags_report.c
new file mode 100644
index 0000000..8eaf5f7
--- /dev/null
+++ b/mm/kasan/tags_report.c
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * This file contains tag-based KASAN specific error reporting code.
+ *
+ * Copyright (c) 2014 Samsung Electronics Co., Ltd.
+ * Author: Andrey Ryabinin <ryabinin.a.a@gmail.com>
+ *
+ * Some code borrowed from https://github.com/xairy/kasan-prototype by
+ * Andrey Konovalov <andreyknvl@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/bitops.h>
+#include <linux/ftrace.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/printk.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/stackdepot.h>
+#include <linux/stacktrace.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/kasan.h>
+#include <linux/module.h>
+
+#include <asm/sections.h>
+
+#include "kasan.h"
+#include "../slab.h"
+
+const char *get_bug_type(struct kasan_access_info *info)
+{
+ return "invalid-access";
+}
+
+void *find_first_bad_addr(void *addr, size_t size)
+{
+ u8 tag = get_tag(addr);
+ void *p = reset_tag(addr);
+ void *end = p + size;
+
+ while (p < end && tag == *(u8 *)kasan_mem_to_shadow(p))
+ p += KASAN_SHADOW_SCALE_SIZE;
+ return p;
+}
+
+void print_tags(u8 addr_tag, const void *addr)
+{
+ u8 *shadow = (u8 *)kasan_mem_to_shadow(addr);
+
+ pr_err("Pointer tag: [%02x], memory tag: [%02x]\n", addr_tag, *shadow);
+}
diff --git a/mm/madvise.c b/mm/madvise.c
index 71d21df..68a9626 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -138,7 +138,7 @@ static long madvise_behavior(struct vm_area_struct *vma,
pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
*prev = vma_merge(mm, *prev, start, end, new_flags, vma->anon_vma,
vma->vm_file, pgoff, vma_policy(vma),
- vma->vm_userfaultfd_ctx);
+ vma->vm_userfaultfd_ctx, vma_get_anon_name(vma));
if (*prev) {
vma = *prev;
goto success;
@@ -808,6 +808,8 @@ SYSCALL_DEFINE3(madvise, unsigned long, start, size_t, len_in, int, behavior)
size_t len;
struct blk_plug plug;
+ start = untagged_addr(start);
+
if (!madvise_behavior_valid(behavior))
return error;
diff --git a/mm/memblock.c b/mm/memblock.c
index 4f7c5c3..a4d7d25 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -243,7 +243,8 @@ phys_addr_t __init_memblock memblock_find_in_range_node(phys_addr_t size,
enum memblock_flags flags)
{
/* pump up @end */
- if (end == MEMBLOCK_ALLOC_ACCESSIBLE)
+ if (end == MEMBLOCK_ALLOC_ACCESSIBLE ||
+ end == MEMBLOCK_ALLOC_KASAN)
end = memblock.current_limit;
/* avoid allocating the first page */
@@ -765,6 +766,7 @@ int __init_memblock memblock_free(phys_addr_t base, phys_addr_t size)
kmemleak_free_part_phys(base, size);
return memblock_remove_range(&memblock.reserved, base, size);
}
+EXPORT_SYMBOL_GPL(memblock_free);
int __init_memblock memblock_reserve(phys_addr_t base, phys_addr_t size)
{
@@ -1364,13 +1366,15 @@ static void * __init memblock_virt_alloc_internal(
done:
ptr = phys_to_virt(alloc);
- /*
- * The min_count is set to 0 so that bootmem allocated blocks
- * are never reported as leaks. This is because many of these blocks
- * are only referred via the physical address which is not
- * looked up by kmemleak.
- */
- kmemleak_alloc(ptr, size, 0, 0);
+ /* Skip kmemleak for kasan_init() due to high volume. */
+ if (max_addr != MEMBLOCK_ALLOC_KASAN)
+ /*
+ * The min_count is set to 0 so that bootmem allocated
+ * blocks are never reported as leaks. This is because many
+ * of these blocks are only referred via the physical
+ * address which is not looked up by kmemleak.
+ */
+ kmemleak_alloc(ptr, size, 0, 0);
return ptr;
}
@@ -1733,6 +1737,15 @@ bool __init_memblock memblock_is_region_memory(phys_addr_t base, phys_addr_t siz
memblock.memory.regions[idx].size) >= end;
}
+bool __init_memblock memblock_overlaps_memory(phys_addr_t base,
+ phys_addr_t size)
+{
+ memblock_cap_size(base, &size);
+
+ return memblock_overlaps_region(&memblock.memory, base, size);
+}
+EXPORT_SYMBOL_GPL(memblock_overlaps_memory);
+
/**
* memblock_is_region_reserved - check if a region intersects reserved memory
* @base: base of region to check
diff --git a/mm/memfd.c b/mm/memfd.c
index 9e68a43..bd4a596 100644
--- a/mm/memfd.c
+++ b/mm/memfd.c
@@ -152,7 +152,8 @@ static unsigned int *memfd_file_seals_ptr(struct file *file)
#define F_ALL_SEALS (F_SEAL_SEAL | \
F_SEAL_SHRINK | \
F_SEAL_GROW | \
- F_SEAL_WRITE)
+ F_SEAL_WRITE | \
+ F_SEAL_FUTURE_WRITE)
static int memfd_add_seals(struct file *file, unsigned int seals)
{
diff --git a/mm/memory.c b/mm/memory.c
index 49b546c..52bdb10 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -70,6 +70,8 @@
#include <linux/dax.h>
#include <linux/oom.h>
+#include <trace/events/kmem.h>
+
#include <asm/io.h>
#include <asm/mmu_context.h>
#include <asm/pgalloc.h>
@@ -150,6 +152,23 @@ static int __init init_zero_pfn(void)
}
early_initcall(init_zero_pfn);
+/*
+ * Only trace rss_stat when there is a 512kb cross over.
+ * Smaller changes may be lost unless every small change is
+ * crossing into or returning to a 512kb boundary.
+ */
+#define TRACE_MM_COUNTER_THRESHOLD 128
+
+void mm_trace_rss_stat(struct mm_struct *mm, int member, long count,
+ long value)
+{
+ long thresh_mask = ~(TRACE_MM_COUNTER_THRESHOLD - 1);
+
+ /* Threshold roll-over, trace it */
+ if ((count & thresh_mask) != ((count - value) & thresh_mask))
+ trace_rss_stat(mm, member, count);
+}
+EXPORT_SYMBOL_GPL(mm_trace_rss_stat);
#if defined(SPLIT_RSS_COUNTING)
@@ -2483,6 +2502,10 @@ static vm_fault_t do_page_mkwrite(struct vm_fault *vmf)
vmf->flags = FAULT_FLAG_WRITE|FAULT_FLAG_MKWRITE;
+ if (vmf->vma->vm_file &&
+ IS_SWAPFILE(vmf->vma->vm_file->f_mapping->host))
+ return VM_FAULT_SIGBUS;
+
ret = vmf->vma->vm_ops->page_mkwrite(vmf);
/* Restore original flags so that caller is not surprised */
vmf->flags = old_flags;
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 3cd27c1..9b03bfa4 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -760,7 +760,8 @@ static int mbind_range(struct mm_struct *mm, unsigned long start,
((vmstart - vma->vm_start) >> PAGE_SHIFT);
prev = vma_merge(mm, prev, vmstart, vmend, vma->vm_flags,
vma->anon_vma, vma->vm_file, pgoff,
- new_pol, vma->vm_userfaultfd_ctx);
+ new_pol, vma->vm_userfaultfd_ctx,
+ vma_get_anon_name(vma));
if (prev) {
vma = prev;
next = vma->vm_next;
@@ -1396,6 +1397,7 @@ static long kernel_mbind(unsigned long start, unsigned long len,
int err;
unsigned short mode_flags;
+ start = untagged_addr(start);
mode_flags = mode & MPOL_MODE_FLAGS;
mode &= ~MPOL_MODE_FLAGS;
if (mode >= MPOL_MAX)
@@ -1553,6 +1555,8 @@ static int kernel_get_mempolicy(int __user *policy,
int uninitialized_var(pval);
nodemask_t nodes;
+ addr = untagged_addr(addr);
+
if (nmask != NULL && maxnode < nr_node_ids)
return -EINVAL;
diff --git a/mm/migrate.c b/mm/migrate.c
index a69b842..e748bef 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -683,6 +683,8 @@ void migrate_page_states(struct page *newpage, struct page *page)
SetPageActive(newpage);
} else if (TestClearPageUnevictable(page))
SetPageUnevictable(newpage);
+ if (PageWorkingset(page))
+ SetPageWorkingset(newpage);
if (PageChecked(page))
SetPageChecked(newpage);
if (PageMappedToDisk(page))
@@ -1606,7 +1608,7 @@ static int do_pages_move(struct mm_struct *mm, nodemask_t task_nodes,
goto out_flush;
if (get_user(node, nodes + i))
goto out_flush;
- addr = (unsigned long)p;
+ addr = (unsigned long)untagged_addr(p);
err = -ENODEV;
if (node < 0 || node >= MAX_NUMNODES)
diff --git a/mm/mincore.c b/mm/mincore.c
index 2732c8c07..7eb1491 100644
--- a/mm/mincore.c
+++ b/mm/mincore.c
@@ -249,6 +249,8 @@ SYSCALL_DEFINE3(mincore, unsigned long, start, size_t, len,
unsigned long pages;
unsigned char *tmp;
+ start = untagged_addr(start);
+
/* Check the start address: needs to be page-aligned.. */
if (start & ~PAGE_MASK)
return -EINVAL;
diff --git a/mm/mlock.c b/mm/mlock.c
index 0ab8250..ef2abaf 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -535,7 +535,7 @@ static int mlock_fixup(struct vm_area_struct *vma, struct vm_area_struct **prev,
pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
*prev = vma_merge(mm, *prev, start, end, newflags, vma->anon_vma,
vma->vm_file, pgoff, vma_policy(vma),
- vma->vm_userfaultfd_ctx);
+ vma->vm_userfaultfd_ctx, vma_get_anon_name(vma));
if (*prev) {
vma = *prev;
goto success;
@@ -674,6 +674,8 @@ static __must_check int do_mlock(unsigned long start, size_t len, vm_flags_t fla
unsigned long lock_limit;
int error = -ENOMEM;
+ start = untagged_addr(start);
+
if (!can_do_mlock())
return -EPERM;
@@ -735,6 +737,8 @@ SYSCALL_DEFINE2(munlock, unsigned long, start, size_t, len)
{
int ret;
+ start = untagged_addr(start);
+
len = PAGE_ALIGN(len + (offset_in_page(start)));
start &= PAGE_MASK;
diff --git a/mm/mm_event.c b/mm/mm_event.c
new file mode 100644
index 0000000..208071a
--- /dev/null
+++ b/mm/mm_event.c
@@ -0,0 +1,12 @@
+#include <linux/mm.h>
+#include <linux/mm_event.h>
+
+void mm_event_count(enum mm_event_type event, int count)
+{
+}
+EXPORT_SYMBOL_GPL(mm_event_count);
+
+void mm_event_end(enum mm_event_type event, ktime_t start)
+{
+}
+EXPORT_SYMBOL_GPL(mm_event_end);
diff --git a/mm/mmap.c b/mm/mmap.c
index f875386..4bf28d1 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -977,7 +977,8 @@ int __vma_adjust(struct vm_area_struct *vma, unsigned long start,
*/
static inline int is_mergeable_vma(struct vm_area_struct *vma,
struct file *file, unsigned long vm_flags,
- struct vm_userfaultfd_ctx vm_userfaultfd_ctx)
+ struct vm_userfaultfd_ctx vm_userfaultfd_ctx,
+ const char __user *anon_name)
{
/*
* VM_SOFTDIRTY should not prevent from VMA merging, if we
@@ -995,6 +996,8 @@ static inline int is_mergeable_vma(struct vm_area_struct *vma,
return 0;
if (!is_mergeable_vm_userfaultfd_ctx(vma, vm_userfaultfd_ctx))
return 0;
+ if (vma_get_anon_name(vma) != anon_name)
+ return 0;
return 1;
}
@@ -1027,9 +1030,10 @@ static int
can_vma_merge_before(struct vm_area_struct *vma, unsigned long vm_flags,
struct anon_vma *anon_vma, struct file *file,
pgoff_t vm_pgoff,
- struct vm_userfaultfd_ctx vm_userfaultfd_ctx)
+ struct vm_userfaultfd_ctx vm_userfaultfd_ctx,
+ const char __user *anon_name)
{
- if (is_mergeable_vma(vma, file, vm_flags, vm_userfaultfd_ctx) &&
+ if (is_mergeable_vma(vma, file, vm_flags, vm_userfaultfd_ctx, anon_name) &&
is_mergeable_anon_vma(anon_vma, vma->anon_vma, vma)) {
if (vma->vm_pgoff == vm_pgoff)
return 1;
@@ -1048,9 +1052,10 @@ static int
can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags,
struct anon_vma *anon_vma, struct file *file,
pgoff_t vm_pgoff,
- struct vm_userfaultfd_ctx vm_userfaultfd_ctx)
+ struct vm_userfaultfd_ctx vm_userfaultfd_ctx,
+ const char __user *anon_name)
{
- if (is_mergeable_vma(vma, file, vm_flags, vm_userfaultfd_ctx) &&
+ if (is_mergeable_vma(vma, file, vm_flags, vm_userfaultfd_ctx, anon_name) &&
is_mergeable_anon_vma(anon_vma, vma->anon_vma, vma)) {
pgoff_t vm_pglen;
vm_pglen = vma_pages(vma);
@@ -1061,9 +1066,9 @@ can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags,
}
/*
- * Given a mapping request (addr,end,vm_flags,file,pgoff), figure out
- * whether that can be merged with its predecessor or its successor.
- * Or both (it neatly fills a hole).
+ * Given a mapping request (addr,end,vm_flags,file,pgoff,anon_name),
+ * figure out whether that can be merged with its predecessor or its
+ * successor. Or both (it neatly fills a hole).
*
* In most cases - when called for mmap, brk or mremap - [addr,end) is
* certain not to be mapped by the time vma_merge is called; but when
@@ -1105,7 +1110,8 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
unsigned long end, unsigned long vm_flags,
struct anon_vma *anon_vma, struct file *file,
pgoff_t pgoff, struct mempolicy *policy,
- struct vm_userfaultfd_ctx vm_userfaultfd_ctx)
+ struct vm_userfaultfd_ctx vm_userfaultfd_ctx,
+ const char __user *anon_name)
{
pgoff_t pglen = (end - addr) >> PAGE_SHIFT;
struct vm_area_struct *area, *next;
@@ -1138,7 +1144,8 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
mpol_equal(vma_policy(prev), policy) &&
can_vma_merge_after(prev, vm_flags,
anon_vma, file, pgoff,
- vm_userfaultfd_ctx)) {
+ vm_userfaultfd_ctx,
+ anon_name)) {
/*
* OK, it can. Can we now merge in the successor as well?
*/
@@ -1147,7 +1154,8 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
can_vma_merge_before(next, vm_flags,
anon_vma, file,
pgoff+pglen,
- vm_userfaultfd_ctx) &&
+ vm_userfaultfd_ctx,
+ anon_name) &&
is_mergeable_anon_vma(prev->anon_vma,
next->anon_vma, NULL)) {
/* cases 1, 6 */
@@ -1170,7 +1178,8 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
mpol_equal(policy, vma_policy(next)) &&
can_vma_merge_before(next, vm_flags,
anon_vma, file, pgoff+pglen,
- vm_userfaultfd_ctx)) {
+ vm_userfaultfd_ctx,
+ anon_name)) {
if (prev && addr < prev->vm_end) /* case 4 */
err = __vma_adjust(prev, prev->vm_start,
addr, prev->vm_pgoff, NULL, next);
@@ -1452,8 +1461,12 @@ unsigned long do_mmap(struct file *file, unsigned long addr,
case MAP_SHARED_VALIDATE:
if (flags & ~flags_mask)
return -EOPNOTSUPP;
- if ((prot&PROT_WRITE) && !(file->f_mode&FMODE_WRITE))
- return -EACCES;
+ if (prot & PROT_WRITE) {
+ if (!(file->f_mode & FMODE_WRITE))
+ return -EACCES;
+ if (IS_SWAPFILE(file->f_mapping->host))
+ return -ETXTBSY;
+ }
/*
* Make sure we don't allow writing to an append-only
@@ -1715,7 +1728,7 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
* Can we just expand an old mapping?
*/
vma = vma_merge(mm, prev, addr, addr + len, vm_flags,
- NULL, file, pgoff, NULL, NULL_VM_UFFD_CTX);
+ NULL, file, pgoff, NULL, NULL_VM_UFFD_CTX, NULL);
if (vma)
goto out;
@@ -2036,6 +2049,7 @@ unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info)
VM_BUG_ON(gap_end < gap_start);
return gap_end;
}
+EXPORT_SYMBOL_GPL(unmapped_area_topdown);
/* Get an address range which is currently unmapped.
* For shmat() with addr=0.
@@ -2806,6 +2820,7 @@ EXPORT_SYMBOL(vm_munmap);
SYSCALL_DEFINE2(munmap, unsigned long, addr, size_t, len)
{
+ addr = untagged_addr(addr);
profile_munmap(addr);
return vm_munmap(addr, len);
}
@@ -2973,7 +2988,7 @@ static int do_brk_flags(unsigned long addr, unsigned long len, unsigned long fla
/* Can we just expand an old private anonymous mapping? */
vma = vma_merge(mm, prev, addr, addr + len, flags,
- NULL, NULL, pgoff, NULL, NULL_VM_UFFD_CTX);
+ NULL, NULL, pgoff, NULL, NULL_VM_UFFD_CTX, NULL);
if (vma)
goto out;
@@ -3172,7 +3187,7 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
return NULL; /* should never get here */
new_vma = vma_merge(mm, prev, addr, addr + len, vma->vm_flags,
vma->anon_vma, vma->vm_file, pgoff, vma_policy(vma),
- vma->vm_userfaultfd_ctx);
+ vma->vm_userfaultfd_ctx, vma_get_anon_name(vma));
if (new_vma) {
/*
* Source vma may have been merged into new_vma
diff --git a/mm/mmzone.c b/mm/mmzone.c
index 4686fdc..4dd4f96 100644
--- a/mm/mmzone.c
+++ b/mm/mmzone.c
@@ -71,6 +71,7 @@ struct zoneref *__next_zones_zonelist(struct zoneref *z,
return z;
}
+EXPORT_SYMBOL_GPL(__next_zones_zonelist);
#ifdef CONFIG_ARCH_HAS_HOLES_MEMORYMODEL
bool memmap_valid_within(unsigned long pfn,
diff --git a/mm/mprotect.c b/mm/mprotect.c
index 86837f2..5c175d4 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -432,7 +432,7 @@ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
*pprev = vma_merge(mm, *pprev, start, end, newflags,
vma->anon_vma, vma->vm_file, pgoff, vma_policy(vma),
- vma->vm_userfaultfd_ctx);
+ vma->vm_userfaultfd_ctx, vma_get_anon_name(vma));
if (*pprev) {
vma = *pprev;
VM_WARN_ON((vma->vm_flags ^ newflags) & ~VM_SOFTDIRTY);
@@ -497,6 +497,8 @@ static int do_mprotect_pkey(unsigned long start, size_t len,
const bool rier = (current->personality & READ_IMPLIES_EXEC) &&
(prot & PROT_READ);
+ start = untagged_addr(start);
+
prot &= ~(PROT_GROWSDOWN|PROT_GROWSUP);
if (grows == (PROT_GROWSDOWN|PROT_GROWSUP)) /* can't be both */
return -EINVAL;
diff --git a/mm/mremap.c b/mm/mremap.c
index 33d8bbe..16630b5 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -525,6 +525,8 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
LIST_HEAD(uf_unmap_early);
LIST_HEAD(uf_unmap);
+ addr = untagged_addr(addr);
+
if (flags & ~(MREMAP_FIXED | MREMAP_MAYMOVE))
return ret;
diff --git a/mm/msync.c b/mm/msync.c
index ef30a42..c3bd3e75 100644
--- a/mm/msync.c
+++ b/mm/msync.c
@@ -37,6 +37,8 @@ SYSCALL_DEFINE3(msync, unsigned long, start, size_t, len, int, flags)
int unmapped_error = 0;
int error = -EINVAL;
+ start = untagged_addr(start);
+
if (flags & ~(MS_ASYNC | MS_INVALIDATE | MS_SYNC))
goto out;
if (offset_in_page(start))
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index afcaa65..22b03ac 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -67,6 +67,7 @@
#include <linux/lockdep.h>
#include <linux/nmi.h>
#include <linux/khugepaged.h>
+#include <linux/psi.h>
#include <asm/sections.h>
#include <asm/tlbflush.h>
@@ -131,6 +132,55 @@ unsigned long totalcma_pages __read_mostly;
int percpu_pagelist_fraction;
gfp_t gfp_allowed_mask __read_mostly = GFP_BOOT_MASK;
+#ifdef CONFIG_INIT_ON_ALLOC_DEFAULT_ON
+DEFINE_STATIC_KEY_TRUE(init_on_alloc);
+#else
+DEFINE_STATIC_KEY_FALSE(init_on_alloc);
+#endif
+EXPORT_SYMBOL(init_on_alloc);
+
+#ifdef CONFIG_INIT_ON_FREE_DEFAULT_ON
+DEFINE_STATIC_KEY_TRUE(init_on_free);
+#else
+DEFINE_STATIC_KEY_FALSE(init_on_free);
+#endif
+EXPORT_SYMBOL(init_on_free);
+
+static int __init early_init_on_alloc(char *buf)
+{
+ int ret;
+ bool bool_result;
+
+ if (!buf)
+ return -EINVAL;
+ ret = kstrtobool(buf, &bool_result);
+ if (bool_result && page_poisoning_enabled())
+ pr_info("mem auto-init: CONFIG_PAGE_POISONING is on, will take precedence over init_on_alloc\n");
+ if (bool_result)
+ static_branch_enable(&init_on_alloc);
+ else
+ static_branch_disable(&init_on_alloc);
+ return ret;
+}
+early_param("init_on_alloc", early_init_on_alloc);
+
+static int __init early_init_on_free(char *buf)
+{
+ int ret;
+ bool bool_result;
+
+ if (!buf)
+ return -EINVAL;
+ ret = kstrtobool(buf, &bool_result);
+ if (bool_result && page_poisoning_enabled())
+ pr_info("mem auto-init: CONFIG_PAGE_POISONING is on, will take precedence over init_on_free\n");
+ if (bool_result)
+ static_branch_enable(&init_on_free);
+ else
+ static_branch_disable(&init_on_free);
+ return ret;
+}
+early_param("init_on_free", early_init_on_free);
/*
* A cached value of the page's pageblock's migratetype, used when the page is
@@ -242,10 +292,10 @@ char * const migratetype_names[MIGRATE_TYPES] = {
"Unmovable",
"Movable",
"Reclaimable",
- "HighAtomic",
#ifdef CONFIG_CMA
"CMA",
#endif
+ "HighAtomic",
#ifdef CONFIG_MEMORY_ISOLATION
"Isolate",
#endif
@@ -262,10 +312,22 @@ compound_page_dtor * const compound_page_dtors[] = {
#endif
};
+/*
+ * Try to keep at least this much lowmem free. Do not allow normal
+ * allocations below this point, only high priority ones. Automatically
+ * tuned according to the amount of memory in the system.
+ */
int min_free_kbytes = 1024;
int user_min_free_kbytes = -1;
int watermark_scale_factor = 10;
+/*
+ * Extra memory for the system to try freeing. Used to temporarily
+ * free memory, to make space for new workloads. Anyone can allocate
+ * down to the min watermarks controlled by min_free_kbytes above.
+ */
+int extra_free_kbytes = 0;
+
static unsigned long nr_kernel_pages __meminitdata;
static unsigned long nr_all_pages __meminitdata;
static unsigned long dma_reserve __meminitdata;
@@ -1006,6 +1068,17 @@ static int free_tail_pages_check(struct page *head_page, struct page *page)
return ret;
}
+static void kernel_init_free_pages(struct page *page, int numpages)
+{
+ int i;
+
+ /* s390's use of memset() could override KASAN redzones. */
+ kasan_disable_current();
+ for (i = 0; i < numpages; i++)
+ clear_highpage(page + i);
+ kasan_enable_current();
+}
+
static __always_inline bool free_pages_prepare(struct page *page,
unsigned int order, bool check_free)
{
@@ -1057,6 +1130,9 @@ static __always_inline bool free_pages_prepare(struct page *page,
PAGE_SIZE << order);
}
arch_free_page(page, order);
+ if (want_init_on_free())
+ kernel_init_free_pages(page, 1 << order);
+
kernel_poison_pages(page, 1 << order, 0);
kernel_map_pages(page, 1 << order, 0);
kasan_free_nondeferred_pages(page, order);
@@ -1210,6 +1286,7 @@ static void __meminit __init_single_page(struct page *page, unsigned long pfn,
init_page_count(page);
page_mapcount_reset(page);
page_cpupid_reset_last(page);
+ page_kasan_tag_reset(page);
INIT_LIST_HEAD(&page->lru);
#ifdef WANT_PAGE_VIRTUAL
@@ -1886,8 +1963,8 @@ static inline int check_new_page(struct page *page)
static inline bool free_pages_prezeroed(void)
{
- return IS_ENABLED(CONFIG_PAGE_POISONING_ZERO) &&
- page_poisoning_enabled();
+ return (IS_ENABLED(CONFIG_PAGE_POISONING_ZERO) &&
+ page_poisoning_enabled()) || want_init_on_free();
}
#ifdef CONFIG_DEBUG_VM
@@ -1940,13 +2017,10 @@ inline void post_alloc_hook(struct page *page, unsigned int order,
static void prep_new_page(struct page *page, unsigned int order, gfp_t gfp_flags,
unsigned int alloc_flags)
{
- int i;
-
post_alloc_hook(page, order, gfp_flags);
- if (!free_pages_prezeroed() && (gfp_flags & __GFP_ZERO))
- for (i = 0; i < (1 << order); i++)
- clear_highpage(page + i);
+ if (!free_pages_prezeroed() && want_init_on_alloc(gfp_flags))
+ kernel_init_free_pages(page, 1 << order);
if (order && (gfp_flags & __GFP_COMP))
prep_compound_page(page, order);
@@ -2473,18 +2547,32 @@ __rmqueue(struct zone *zone, unsigned int order, int migratetype)
retry:
page = __rmqueue_smallest(zone, order, migratetype);
- if (unlikely(!page)) {
- if (migratetype == MIGRATE_MOVABLE)
- page = __rmqueue_cma_fallback(zone, order);
- if (!page && __rmqueue_fallback(zone, order, migratetype))
- goto retry;
- }
+ if (unlikely(!page) && __rmqueue_fallback(zone, order, migratetype))
+ goto retry;
trace_mm_page_alloc_zone_locked(page, order, migratetype);
return page;
}
+#ifdef CONFIG_CMA
+static struct page *__rmqueue_cma(struct zone *zone, unsigned int order)
+{
+ struct page *page = 0;
+
+ if (IS_ENABLED(CONFIG_CMA))
+ if (!zone->cma_alloc)
+ page = __rmqueue_cma_fallback(zone, order);
+ trace_mm_page_alloc_zone_locked(page, order, MIGRATE_CMA);
+ return page;
+}
+#else
+static inline struct page *__rmqueue_cma(struct zone *zone, unsigned int order)
+{
+ return NULL;
+}
+#endif
+
/*
* Obtain a specified number of elements from the buddy allocator, all under
* a single hold of the lock, for efficiency. Add them to the supplied list.
@@ -2498,7 +2586,18 @@ static int rmqueue_bulk(struct zone *zone, unsigned int order,
spin_lock(&zone->lock);
for (i = 0; i < count; ++i) {
- struct page *page = __rmqueue(zone, order, migratetype);
+ struct page *page;
+
+ /*
+ * If migrate type CMA is being requested only try to
+ * satisfy the request with CMA pages to try and increase
+ * CMA utlization.
+ */
+ if (is_migrate_cma(migratetype))
+ page = __rmqueue_cma(zone, order);
+ else
+ page = __rmqueue(zone, order, migratetype);
+
if (unlikely(page == NULL))
break;
@@ -2533,6 +2632,28 @@ static int rmqueue_bulk(struct zone *zone, unsigned int order,
return alloced;
}
+/*
+ * Return the pcp list that corresponds to the migrate type if that list isn't
+ * empty.
+ * If the list is empty return NULL.
+ */
+static struct list_head *get_populated_pcp_list(struct zone *zone,
+ unsigned int order, struct per_cpu_pages *pcp,
+ int migratetype)
+{
+ struct list_head *list = &pcp->lists[migratetype];
+
+ if (list_empty(list)) {
+ pcp->count += rmqueue_bulk(zone, order,
+ pcp->batch, list,
+ migratetype);
+
+ if (list_empty(list))
+ list = NULL;
+ }
+ return list;
+}
+
#ifdef CONFIG_NUMA
/*
* Called from the vmstat counter updater to drain pagesets of this
@@ -2955,16 +3076,28 @@ static inline void zone_statistics(struct zone *preferred_zone, struct zone *z)
/* Remove page from the per-cpu list, caller must protect the list */
static struct page *__rmqueue_pcplist(struct zone *zone, int migratetype,
struct per_cpu_pages *pcp,
- struct list_head *list)
+ gfp_t gfp_flags)
{
- struct page *page;
+ struct page *page = NULL;
+ struct list_head *list = NULL;
do {
- if (list_empty(list)) {
- pcp->count += rmqueue_bulk(zone, 0,
- pcp->batch, list,
+ /* First try to get CMA pages */
+ if (migratetype == MIGRATE_MOVABLE &&
+ gfp_flags & __GFP_CMA) {
+ list = get_populated_pcp_list(zone, 0, pcp,
+ get_cma_migrate_type());
+ }
+
+ if (list == NULL) {
+ /*
+ * Either CMA is not suitable or there are no
+ * free CMA pages.
+ */
+ list = get_populated_pcp_list(zone, 0, pcp,
migratetype);
- if (unlikely(list_empty(list)))
+ if (unlikely(list == NULL) ||
+ unlikely(list_empty(list)))
return NULL;
}
@@ -2982,14 +3115,13 @@ static struct page *rmqueue_pcplist(struct zone *preferred_zone,
gfp_t gfp_flags, int migratetype)
{
struct per_cpu_pages *pcp;
- struct list_head *list;
struct page *page;
unsigned long flags;
local_irq_save(flags);
pcp = &this_cpu_ptr(zone->pageset)->pcp;
- list = &pcp->lists[migratetype];
- page = __rmqueue_pcplist(zone, migratetype, pcp, list);
+ page = __rmqueue_pcplist(zone, migratetype, pcp,
+ gfp_flags);
if (page) {
__count_zid_vm_events(PGALLOC, page_zonenum(page), 1 << order);
zone_statistics(preferred_zone, zone);
@@ -3025,14 +3157,21 @@ struct page *rmqueue(struct zone *preferred_zone,
do {
page = NULL;
+
if (alloc_flags & ALLOC_HARDER) {
page = __rmqueue_smallest(zone, order, MIGRATE_HIGHATOMIC);
if (page)
trace_mm_page_alloc_zone_locked(page, order, migratetype);
}
+
+ if (!page && migratetype == MIGRATE_MOVABLE &&
+ gfp_flags & __GFP_CMA)
+ page = __rmqueue_cma(zone, order);
+
if (!page)
page = __rmqueue(zone, order, migratetype);
} while (page && check_new_pages(page, order));
+
spin_unlock(&zone->lock);
if (!page)
goto failed;
@@ -3198,6 +3337,14 @@ bool __zone_watermark_ok(struct zone *z, unsigned int order, unsigned long mark,
continue;
for (mt = 0; mt < MIGRATE_PCPTYPES; mt++) {
+#ifdef CONFIG_CMA
+ /*
+ * Note that this check is needed only
+ * when MIGRATE_CMA < MIGRATE_PCPTYPES.
+ */
+ if (mt == MIGRATE_CMA)
+ continue;
+#endif
if (!list_empty(&area->free_list[mt]))
return true;
}
@@ -3259,6 +3406,7 @@ bool zone_watermark_ok_safe(struct zone *z, unsigned int order,
return __zone_watermark_ok(z, order, mark, classzone_idx, 0,
free_pages);
}
+EXPORT_SYMBOL_GPL(zone_watermark_ok_safe);
#ifdef CONFIG_NUMA
static bool zone_allows_reclaim(struct zone *local_zone, struct zone *zone)
@@ -3580,15 +3728,20 @@ __alloc_pages_direct_compact(gfp_t gfp_mask, unsigned int order,
enum compact_priority prio, enum compact_result *compact_result)
{
struct page *page;
+ unsigned long pflags;
unsigned int noreclaim_flag;
if (!order)
return NULL;
+ psi_memstall_enter(&pflags);
noreclaim_flag = memalloc_noreclaim_save();
+
*compact_result = try_to_compact_pages(gfp_mask, order, alloc_flags, ac,
prio);
+
memalloc_noreclaim_restore(noreclaim_flag);
+ psi_memstall_leave(&pflags);
if (*compact_result <= COMPACT_INACTIVE)
return NULL;
@@ -3787,11 +3940,13 @@ __perform_reclaim(gfp_t gfp_mask, unsigned int order,
struct reclaim_state reclaim_state;
int progress;
unsigned int noreclaim_flag;
+ unsigned long pflags;
cond_resched();
/* We now go into synchronous reclaim */
cpuset_memory_pressure_bump();
+ psi_memstall_enter(&pflags);
fs_reclaim_acquire(gfp_mask);
noreclaim_flag = memalloc_noreclaim_save();
reclaim_state.reclaimed_slab = 0;
@@ -3803,6 +3958,7 @@ __perform_reclaim(gfp_t gfp_mask, unsigned int order,
current->reclaim_state = NULL;
memalloc_noreclaim_restore(noreclaim_flag);
fs_reclaim_release(gfp_mask);
+ psi_memstall_leave(&pflags);
cond_resched();
@@ -4732,6 +4888,7 @@ long si_mem_available(void)
unsigned long pagecache;
unsigned long wmark_low = 0;
unsigned long pages[NR_LRU_LISTS];
+ unsigned long reclaimable;
struct zone *zone;
int lru;
@@ -4757,19 +4914,13 @@ long si_mem_available(void)
available += pagecache;
/*
- * Part of the reclaimable slab consists of items that are in use,
- * and cannot be freed. Cap this estimate at the low watermark.
+ * Part of the reclaimable slab and other kernel memory consists of
+ * items that are in use, and cannot be freed. Cap this estimate at the
+ * low watermark.
*/
- available += global_node_page_state(NR_SLAB_RECLAIMABLE) -
- min(global_node_page_state(NR_SLAB_RECLAIMABLE) / 2,
- wmark_low);
-
- /*
- * Part of the kernel memory, which can be released under memory
- * pressure.
- */
- available += global_node_page_state(NR_INDIRECTLY_RECLAIMABLE_BYTES) >>
- PAGE_SHIFT;
+ reclaimable = global_node_page_state(NR_SLAB_RECLAIMABLE) +
+ global_node_page_state(NR_KERNEL_MISC_RECLAIMABLE);
+ available += reclaimable - min(reclaimable / 2, wmark_low);
if (available < 0)
available = 0;
@@ -4998,6 +5149,9 @@ void show_free_areas(unsigned int filter, nodemask_t *nodemask)
" managed:%lukB"
" mlocked:%lukB"
" kernel_stack:%lukB"
+#ifdef CONFIG_SHADOW_CALL_STACK
+ " shadow_call_stack:%lukB"
+#endif
" pagetables:%lukB"
" bounce:%lukB"
" free_pcp:%lukB"
@@ -5019,6 +5173,9 @@ void show_free_areas(unsigned int filter, nodemask_t *nodemask)
K(zone->managed_pages),
K(zone_page_state(zone, NR_MLOCK)),
zone_page_state(zone, NR_KERNEL_STACK_KB),
+#ifdef CONFIG_SHADOW_CALL_STACK
+ zone_page_state(zone, NR_KERNEL_SCS_BYTES) / 1024,
+#endif
K(zone_page_state(zone, NR_PAGETABLE)),
K(zone_page_state(zone, NR_BOUNCE)),
K(free_pcp),
@@ -7280,6 +7437,7 @@ static void setup_per_zone_lowmem_reserve(void)
static void __setup_per_zone_wmarks(void)
{
unsigned long pages_min = min_free_kbytes >> (PAGE_SHIFT - 10);
+ unsigned long pages_low = extra_free_kbytes >> (PAGE_SHIFT - 10);
unsigned long lowmem_pages = 0;
struct zone *zone;
unsigned long flags;
@@ -7291,11 +7449,14 @@ static void __setup_per_zone_wmarks(void)
}
for_each_zone(zone) {
- u64 tmp;
+ u64 min, low;
spin_lock_irqsave(&zone->lock, flags);
- tmp = (u64)pages_min * zone->managed_pages;
- do_div(tmp, lowmem_pages);
+ min = (u64)pages_min * zone->managed_pages;
+ do_div(min, lowmem_pages);
+ low = (u64)pages_low * zone->managed_pages;
+ do_div(low, vm_total_pages);
+
if (is_highmem(zone)) {
/*
* __GFP_HIGH and PF_MEMALLOC allocations usually don't
@@ -7316,7 +7477,7 @@ static void __setup_per_zone_wmarks(void)
* If it's a lowmem zone, reserve a number of pages
* proportionate to the zone's size.
*/
- zone->watermark[WMARK_MIN] = tmp;
+ zone->watermark[WMARK_MIN] = min;
}
/*
@@ -7324,12 +7485,14 @@ static void __setup_per_zone_wmarks(void)
* scale factor in proportion to available memory, but
* ensure a minimum size on small systems.
*/
- tmp = max_t(u64, tmp >> 2,
+ min = max_t(u64, min >> 2,
mult_frac(zone->managed_pages,
watermark_scale_factor, 10000));
- zone->watermark[WMARK_LOW] = min_wmark_pages(zone) + tmp;
- zone->watermark[WMARK_HIGH] = min_wmark_pages(zone) + tmp * 2;
+ zone->watermark[WMARK_LOW] = min_wmark_pages(zone) +
+ low + min;
+ zone->watermark[WMARK_HIGH] = min_wmark_pages(zone) +
+ low + min * 2;
spin_unlock_irqrestore(&zone->lock, flags);
}
@@ -7414,7 +7577,7 @@ postcore_initcall(init_per_zone_wmark_min)
/*
* min_free_kbytes_sysctl_handler - just a wrapper around proc_dointvec() so
* that we can call two helper functions whenever min_free_kbytes
- * changes.
+ * or extra_free_kbytes changes.
*/
int min_free_kbytes_sysctl_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *length, loff_t *ppos)
@@ -7957,6 +8120,9 @@ int alloc_contig_range(unsigned long start, unsigned long end,
if (ret)
return ret;
+#ifdef CONFIG_CMA
+ cc.zone->cma_alloc = 1;
+#endif
/*
* In case of -EBUSY, we'd like to know which page causes problem.
* So, just fall through. test_pages_isolated() has a tracepoint
@@ -8039,6 +8205,9 @@ int alloc_contig_range(unsigned long start, unsigned long end,
done:
undo_isolate_page_range(pfn_max_align_down(start),
pfn_max_align_up(end), migratetype);
+#ifdef CONFIG_CMA
+ cc.zone->cma_alloc = 0;
+#endif
return ret;
}
diff --git a/mm/page_io.c b/mm/page_io.c
index 9b646f0..295d9f8 100644
--- a/mm/page_io.c
+++ b/mm/page_io.c
@@ -22,6 +22,7 @@
#include <linux/writeback.h>
#include <linux/frontswap.h>
#include <linux/blkdev.h>
+#include <linux/psi.h>
#include <linux/uio.h>
#include <linux/sched/task.h>
#include <asm/pgtable.h>
@@ -351,10 +352,19 @@ int swap_readpage(struct page *page, bool synchronous)
struct swap_info_struct *sis = page_swap_info(page);
blk_qc_t qc;
struct gendisk *disk;
+ unsigned long pflags;
VM_BUG_ON_PAGE(!PageSwapCache(page) && !synchronous, page);
VM_BUG_ON_PAGE(!PageLocked(page), page);
VM_BUG_ON_PAGE(PageUptodate(page), page);
+
+ /*
+ * Count submission time as memory stall. When the device is congested,
+ * or the submitting cgroup IO-throttled, submission can be a
+ * significant part of overall IO time.
+ */
+ psi_memstall_enter(&pflags);
+
if (frontswap_load(page) == 0) {
SetPageUptodate(page);
unlock_page(page);
@@ -368,7 +378,7 @@ int swap_readpage(struct page *page, bool synchronous)
ret = mapping->a_ops->readpage(swap_file, page);
if (!ret)
count_vm_event(PSWPIN);
- return ret;
+ goto out;
}
ret = bdev_read_page(sis->bdev, map_swap_page(page, &sis->bdev), page);
@@ -379,7 +389,7 @@ int swap_readpage(struct page *page, bool synchronous)
}
count_vm_event(PSWPIN);
- return 0;
+ goto out;
}
ret = 0;
@@ -412,6 +422,7 @@ int swap_readpage(struct page *page, bool synchronous)
bio_put(bio);
out:
+ psi_memstall_leave(&pflags);
return ret;
}
diff --git a/mm/page_poison.c b/mm/page_poison.c
index 6cfa8e7..1f362e6 100644
--- a/mm/page_poison.c
+++ b/mm/page_poison.c
@@ -18,6 +18,11 @@ static int __init early_page_poison_param(char *buf)
}
early_param("page_poison", early_page_poison_param);
+/**
+ * page_poisoning_enabled - check if page poisoning is enabled
+ *
+ * Return true if page poisoning is enabled, or false if not.
+ */
bool page_poisoning_enabled(void)
{
/*
@@ -30,6 +35,7 @@ bool page_poisoning_enabled(void)
(!IS_ENABLED(CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC) &&
debug_pagealloc_enabled()));
}
+EXPORT_SYMBOL_GPL(page_poisoning_enabled);
static void poison_page(struct page *page)
{
diff --git a/mm/percpu.c b/mm/percpu.c
index 0151f27..2bbae23 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -1865,6 +1865,7 @@ phys_addr_t per_cpu_ptr_to_phys(void *addr)
return page_to_phys(pcpu_addr_to_page(addr)) +
offset_in_page(addr);
}
+EXPORT_SYMBOL_GPL(per_cpu_ptr_to_phys);
/**
* pcpu_alloc_alloc_info - allocate percpu allocation info
diff --git a/mm/shmem.c b/mm/shmem.c
index 9fd0e727..6199fced 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2173,6 +2173,24 @@ int shmem_lock(struct file *file, int lock, struct user_struct *user)
static int shmem_mmap(struct file *file, struct vm_area_struct *vma)
{
+ struct shmem_inode_info *info = SHMEM_I(file_inode(file));
+
+ if (info->seals & F_SEAL_FUTURE_WRITE) {
+ /*
+ * New PROT_WRITE and MAP_SHARED mmaps are not allowed when
+ * "future write" seal active.
+ */
+ if ((vma->vm_flags & VM_SHARED) && (vma->vm_flags & VM_WRITE))
+ return -EPERM;
+
+ /*
+ * Since the F_SEAL_FUTURE_WRITE seals allow for a MAP_SHARED
+ * read-only mapping, take care to not allow mprotect to revert
+ * protections.
+ */
+ vma->vm_flags &= ~(VM_MAYWRITE);
+ }
+
file_accessed(file);
vma->vm_ops = &shmem_vm_ops;
if (IS_ENABLED(CONFIG_TRANSPARENT_HUGE_PAGECACHE) &&
@@ -2436,8 +2454,9 @@ shmem_write_begin(struct file *file, struct address_space *mapping,
pgoff_t index = pos >> PAGE_SHIFT;
/* i_mutex is held by caller */
- if (unlikely(info->seals & (F_SEAL_WRITE | F_SEAL_GROW))) {
- if (info->seals & F_SEAL_WRITE)
+ if (unlikely(info->seals & (F_SEAL_GROW |
+ F_SEAL_WRITE | F_SEAL_FUTURE_WRITE))) {
+ if (info->seals & (F_SEAL_WRITE | F_SEAL_FUTURE_WRITE))
return -EPERM;
if ((info->seals & F_SEAL_GROW) && pos + len > inode->i_size)
return -EPERM;
@@ -2700,7 +2719,7 @@ static long shmem_fallocate(struct file *file, int mode, loff_t offset,
DECLARE_WAIT_QUEUE_HEAD_ONSTACK(shmem_falloc_waitq);
/* protected by i_mutex */
- if (info->seals & F_SEAL_WRITE) {
+ if (info->seals & (F_SEAL_WRITE | F_SEAL_FUTURE_WRITE)) {
error = -EPERM;
goto out;
}
diff --git a/mm/slab.c b/mm/slab.c
index 46f21e7..4e2be12 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -406,19 +406,6 @@ static inline void *index_to_obj(struct kmem_cache *cache, struct page *page,
return page->s_mem + cache->size * idx;
}
-/*
- * We want to avoid an expensive divide : (offset / cache->size)
- * Using the fact that size is a constant for a particular cache,
- * we can replace (offset / cache->size) by
- * reciprocal_divide(offset, cache->reciprocal_buffer_size)
- */
-static inline unsigned int obj_to_index(const struct kmem_cache *cache,
- const struct page *page, void *obj)
-{
- u32 offset = (obj - page->s_mem);
- return reciprocal_divide(offset, cache->reciprocal_buffer_size);
-}
-
#define BOOT_CPUCACHE_ENTRIES 1
/* internal cache of cache description objs */
static struct kmem_cache kmem_cache_boot = {
@@ -1291,7 +1278,7 @@ void __init kmem_cache_init(void)
* Initialize the caches that provide memory for the kmem_cache_node
* structures first. Without this, further allocations will bug.
*/
- kmalloc_caches[INDEX_NODE] = create_kmalloc_cache(
+ kmalloc_caches[KMALLOC_NORMAL][INDEX_NODE] = create_kmalloc_cache(
kmalloc_info[INDEX_NODE].name,
kmalloc_size(INDEX_NODE), ARCH_KMALLOC_FLAGS,
0, kmalloc_size(INDEX_NODE));
@@ -1307,7 +1294,7 @@ void __init kmem_cache_init(void)
for_each_online_node(nid) {
init_list(kmem_cache, &init_kmem_cache_node[CACHE_CACHE + nid], nid);
- init_list(kmalloc_caches[INDEX_NODE],
+ init_list(kmalloc_caches[KMALLOC_NORMAL][INDEX_NODE],
&init_kmem_cache_node[SIZE_NODE + nid], nid);
}
}
@@ -1903,6 +1890,14 @@ static bool set_objfreelist_slab_cache(struct kmem_cache *cachep,
cachep->num = 0;
+ /*
+ * If slab auto-initialization on free is enabled, store the freelist
+ * off-slab, so that its contents don't end up in one of the allocated
+ * objects.
+ */
+ if (unlikely(slab_want_init_on_free(cachep)))
+ return false;
+
if (cachep->ctor || flags & SLAB_TYPESAFE_BY_RCU)
return false;
@@ -2579,7 +2574,7 @@ static void cache_init_objs(struct kmem_cache *cachep,
for (i = 0; i < cachep->num; i++) {
objp = index_to_obj(cachep, page, i);
- kasan_init_slab_obj(cachep, objp);
+ objp = kasan_init_slab_obj(cachep, objp);
/* constructor could break poison info */
if (DEBUG == 0 && cachep->ctor) {
@@ -2697,6 +2692,13 @@ static struct page *cache_grow_begin(struct kmem_cache *cachep,
offset *= cachep->colour_off;
+ /*
+ * Call kasan_poison_slab() before calling alloc_slabmgmt(), so
+ * page_address() in the latter returns a non-tagged pointer,
+ * as it should be for slab pages.
+ */
+ kasan_poison_slab(page);
+
/* Get slab management. */
freelist = alloc_slabmgmt(cachep, page, offset,
local_flags & ~GFP_CONSTRAINT_MASK, page_node);
@@ -2705,7 +2707,6 @@ static struct page *cache_grow_begin(struct kmem_cache *cachep,
slab_map_pages(cachep, page, freelist);
- kasan_poison_slab(page);
cache_init_objs(cachep, page);
if (gfpflags_allow_blocking(local_flags))
@@ -3334,7 +3335,7 @@ slab_alloc_node(struct kmem_cache *cachep, gfp_t flags, int nodeid,
local_irq_restore(save_flags);
ptr = cache_alloc_debugcheck_after(cachep, flags, ptr, caller);
- if (unlikely(flags & __GFP_ZERO) && ptr)
+ if (unlikely(slab_want_init_on_alloc(flags, cachep)) && ptr)
memset(ptr, 0, cachep->object_size);
slab_post_alloc_hook(cachep, flags, 1, &ptr);
@@ -3391,7 +3392,7 @@ slab_alloc(struct kmem_cache *cachep, gfp_t flags, unsigned long caller)
objp = cache_alloc_debugcheck_after(cachep, flags, objp, caller);
prefetchw(objp);
- if (unlikely(flags & __GFP_ZERO) && objp)
+ if (unlikely(slab_want_init_on_alloc(flags, cachep)) && objp)
memset(objp, 0, cachep->object_size);
slab_post_alloc_hook(cachep, flags, 1, &objp);
@@ -3512,6 +3513,8 @@ void ___cache_free(struct kmem_cache *cachep, void *objp,
struct array_cache *ac = cpu_cache_get(cachep);
check_irq_off();
+ if (unlikely(slab_want_init_on_free(cachep)))
+ memset(objp, 0, cachep->object_size);
kmemleak_free_recursive(objp, cachep->flags);
objp = cache_free_debugcheck(cachep, objp, caller);
@@ -3556,7 +3559,6 @@ void *kmem_cache_alloc(struct kmem_cache *cachep, gfp_t flags)
{
void *ret = slab_alloc(cachep, flags, _RET_IP_);
- kasan_slab_alloc(cachep, ret, flags);
trace_kmem_cache_alloc(_RET_IP_, ret,
cachep->object_size, cachep->size, flags);
@@ -3598,7 +3600,7 @@ int kmem_cache_alloc_bulk(struct kmem_cache *s, gfp_t flags, size_t size,
cache_alloc_debugcheck_after_bulk(s, flags, size, p, _RET_IP_);
/* Clear memory outside IRQ disabled section */
- if (unlikely(flags & __GFP_ZERO))
+ if (unlikely(slab_want_init_on_alloc(flags, s)))
for (i = 0; i < size; i++)
memset(p[i], 0, s->object_size);
@@ -3622,7 +3624,7 @@ kmem_cache_alloc_trace(struct kmem_cache *cachep, gfp_t flags, size_t size)
ret = slab_alloc(cachep, flags, _RET_IP_);
- kasan_kmalloc(cachep, ret, size, flags);
+ ret = kasan_kmalloc(cachep, ret, size, flags);
trace_kmalloc(_RET_IP_, ret,
size, cachep->size, flags);
return ret;
@@ -3646,7 +3648,6 @@ void *kmem_cache_alloc_node(struct kmem_cache *cachep, gfp_t flags, int nodeid)
{
void *ret = slab_alloc_node(cachep, flags, nodeid, _RET_IP_);
- kasan_slab_alloc(cachep, ret, flags);
trace_kmem_cache_alloc_node(_RET_IP_, ret,
cachep->object_size, cachep->size,
flags, nodeid);
@@ -3665,7 +3666,7 @@ void *kmem_cache_alloc_node_trace(struct kmem_cache *cachep,
ret = slab_alloc_node(cachep, flags, nodeid, _RET_IP_);
- kasan_kmalloc(cachep, ret, size, flags);
+ ret = kasan_kmalloc(cachep, ret, size, flags);
trace_kmalloc_node(_RET_IP_, ret,
size, cachep->size,
flags, nodeid);
@@ -3686,7 +3687,7 @@ __do_kmalloc_node(size_t size, gfp_t flags, int node, unsigned long caller)
if (unlikely(ZERO_OR_NULL_PTR(cachep)))
return cachep;
ret = kmem_cache_alloc_node_trace(cachep, flags, node, size);
- kasan_kmalloc(cachep, ret, size, flags);
+ ret = kasan_kmalloc(cachep, ret, size, flags);
return ret;
}
@@ -3724,7 +3725,7 @@ static __always_inline void *__do_kmalloc(size_t size, gfp_t flags,
return cachep;
ret = slab_alloc(cachep, flags, caller);
- kasan_kmalloc(cachep, ret, size, flags);
+ ret = kasan_kmalloc(cachep, ret, size, flags);
trace_kmalloc(caller, ret,
size, cachep->size, flags);
@@ -4429,6 +4430,8 @@ void __check_heap_object(const void *ptr, unsigned long n, struct page *page,
unsigned int objnr;
unsigned long offset;
+ ptr = kasan_reset_tag(ptr);
+
/* Find and validate object. */
cachep = page->slab_cache;
objnr = obj_to_index(cachep, page, (void *)ptr);
diff --git a/mm/slab.h b/mm/slab.h
index 9632772..803b124 100644
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -438,11 +438,9 @@ static inline void slab_post_alloc_hook(struct kmem_cache *s, gfp_t flags,
flags &= gfp_allowed_mask;
for (i = 0; i < size; i++) {
- void *object = p[i];
-
- kmemleak_alloc_recursive(object, s->object_size, 1,
+ p[i] = kasan_slab_alloc(s, p[i], flags);
+ kmemleak_alloc_recursive(p[i], s->object_size, 1,
s->flags, flags);
- kasan_slab_alloc(s, object, flags);
}
if (memcg_kmem_enabled())
@@ -529,4 +527,24 @@ static inline int cache_random_seq_create(struct kmem_cache *cachep,
static inline void cache_random_seq_destroy(struct kmem_cache *cachep) { }
#endif /* CONFIG_SLAB_FREELIST_RANDOM */
+static inline bool slab_want_init_on_alloc(gfp_t flags, struct kmem_cache *c)
+{
+ if (static_branch_unlikely(&init_on_alloc)) {
+ if (c->ctor)
+ return false;
+ if (c->flags & (SLAB_TYPESAFE_BY_RCU | SLAB_POISON))
+ return flags & __GFP_ZERO;
+ return true;
+ }
+ return flags & __GFP_ZERO;
+}
+
+static inline bool slab_want_init_on_free(struct kmem_cache *c)
+{
+ if (static_branch_unlikely(&init_on_free))
+ return !(c->ctor ||
+ (c->flags & (SLAB_TYPESAFE_BY_RCU | SLAB_POISON)));
+ return false;
+}
+
#endif /* MM_SLAB_H */
diff --git a/mm/slab_common.c b/mm/slab_common.c
index 282ac40..0d8d00b 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -1006,14 +1006,10 @@ struct kmem_cache *__init create_kmalloc_cache(const char *name,
return s;
}
-struct kmem_cache *kmalloc_caches[KMALLOC_SHIFT_HIGH + 1] __ro_after_init;
+struct kmem_cache *
+kmalloc_caches[NR_KMALLOC_TYPES][KMALLOC_SHIFT_HIGH + 1] __ro_after_init;
EXPORT_SYMBOL(kmalloc_caches);
-#ifdef CONFIG_ZONE_DMA
-struct kmem_cache *kmalloc_dma_caches[KMALLOC_SHIFT_HIGH + 1] __ro_after_init;
-EXPORT_SYMBOL(kmalloc_dma_caches);
-#endif
-
/*
* Conversion table for small slabs sizes / 8 to the index in the
* kmalloc array. This is necessary for slabs < 192 since we have non power
@@ -1073,12 +1069,7 @@ struct kmem_cache *kmalloc_slab(size_t size, gfp_t flags)
index = fls(size - 1);
}
-#ifdef CONFIG_ZONE_DMA
- if (unlikely((flags & GFP_DMA)))
- return kmalloc_dma_caches[index];
-
-#endif
- return kmalloc_caches[index];
+ return kmalloc_caches[kmalloc_type(flags)][index];
}
/*
@@ -1092,15 +1083,15 @@ const struct kmalloc_info_struct kmalloc_info[] __initconst = {
{"kmalloc-16", 16}, {"kmalloc-32", 32},
{"kmalloc-64", 64}, {"kmalloc-128", 128},
{"kmalloc-256", 256}, {"kmalloc-512", 512},
- {"kmalloc-1024", 1024}, {"kmalloc-2048", 2048},
- {"kmalloc-4096", 4096}, {"kmalloc-8192", 8192},
- {"kmalloc-16384", 16384}, {"kmalloc-32768", 32768},
- {"kmalloc-65536", 65536}, {"kmalloc-131072", 131072},
- {"kmalloc-262144", 262144}, {"kmalloc-524288", 524288},
- {"kmalloc-1048576", 1048576}, {"kmalloc-2097152", 2097152},
- {"kmalloc-4194304", 4194304}, {"kmalloc-8388608", 8388608},
- {"kmalloc-16777216", 16777216}, {"kmalloc-33554432", 33554432},
- {"kmalloc-67108864", 67108864}
+ {"kmalloc-1k", 1024}, {"kmalloc-2k", 2048},
+ {"kmalloc-4k", 4096}, {"kmalloc-8k", 8192},
+ {"kmalloc-16k", 16384}, {"kmalloc-32k", 32768},
+ {"kmalloc-64k", 65536}, {"kmalloc-128k", 131072},
+ {"kmalloc-256k", 262144}, {"kmalloc-512k", 524288},
+ {"kmalloc-1M", 1048576}, {"kmalloc-2M", 2097152},
+ {"kmalloc-4M", 4194304}, {"kmalloc-8M", 8388608},
+ {"kmalloc-16M", 16777216}, {"kmalloc-32M", 33554432},
+ {"kmalloc-64M", 67108864}
};
/*
@@ -1150,9 +1141,36 @@ void __init setup_kmalloc_cache_index_table(void)
}
}
-static void __init new_kmalloc_cache(int idx, slab_flags_t flags)
+static const char *
+kmalloc_cache_name(const char *prefix, unsigned int size)
{
- kmalloc_caches[idx] = create_kmalloc_cache(kmalloc_info[idx].name,
+
+ static const char units[3] = "\0kM";
+ int idx = 0;
+
+ while (size >= 1024 && (size % 1024 == 0)) {
+ size /= 1024;
+ idx++;
+ }
+
+ return kasprintf(GFP_NOWAIT, "%s-%u%c", prefix, size, units[idx]);
+}
+
+static void __init
+new_kmalloc_cache(int idx, int type, slab_flags_t flags)
+{
+ const char *name;
+
+ if (type == KMALLOC_RECLAIM) {
+ flags |= SLAB_RECLAIM_ACCOUNT;
+ name = kmalloc_cache_name("kmalloc-rcl",
+ kmalloc_info[idx].size);
+ BUG_ON(!name);
+ } else {
+ name = kmalloc_info[idx].name;
+ }
+
+ kmalloc_caches[type][idx] = create_kmalloc_cache(name,
kmalloc_info[idx].size, flags, 0,
kmalloc_info[idx].size);
}
@@ -1164,21 +1182,25 @@ static void __init new_kmalloc_cache(int idx, slab_flags_t flags)
*/
void __init create_kmalloc_caches(slab_flags_t flags)
{
- int i;
+ int i, type;
- for (i = KMALLOC_SHIFT_LOW; i <= KMALLOC_SHIFT_HIGH; i++) {
- if (!kmalloc_caches[i])
- new_kmalloc_cache(i, flags);
+ for (type = KMALLOC_NORMAL; type <= KMALLOC_RECLAIM; type++) {
+ for (i = KMALLOC_SHIFT_LOW; i <= KMALLOC_SHIFT_HIGH; i++) {
+ if (!kmalloc_caches[type][i])
+ new_kmalloc_cache(i, type, flags);
- /*
- * Caches that are not of the two-to-the-power-of size.
- * These have to be created immediately after the
- * earlier power of two caches
- */
- if (KMALLOC_MIN_SIZE <= 32 && !kmalloc_caches[1] && i == 6)
- new_kmalloc_cache(1, flags);
- if (KMALLOC_MIN_SIZE <= 64 && !kmalloc_caches[2] && i == 7)
- new_kmalloc_cache(2, flags);
+ /*
+ * Caches that are not of the two-to-the-power-of size.
+ * These have to be created immediately after the
+ * earlier power of two caches
+ */
+ if (KMALLOC_MIN_SIZE <= 32 && i == 6 &&
+ !kmalloc_caches[type][1])
+ new_kmalloc_cache(1, type, flags);
+ if (KMALLOC_MIN_SIZE <= 64 && i == 7 &&
+ !kmalloc_caches[type][2])
+ new_kmalloc_cache(2, type, flags);
+ }
}
/* Kmalloc array is now usable */
@@ -1186,16 +1208,15 @@ void __init create_kmalloc_caches(slab_flags_t flags)
#ifdef CONFIG_ZONE_DMA
for (i = 0; i <= KMALLOC_SHIFT_HIGH; i++) {
- struct kmem_cache *s = kmalloc_caches[i];
+ struct kmem_cache *s = kmalloc_caches[KMALLOC_NORMAL][i];
if (s) {
unsigned int size = kmalloc_size(i);
- char *n = kasprintf(GFP_NOWAIT,
- "dma-kmalloc-%u", size);
+ const char *n = kmalloc_cache_name("dma-kmalloc", size);
BUG_ON(!n);
- kmalloc_dma_caches[i] = create_kmalloc_cache(n,
- size, SLAB_CACHE_DMA | flags, 0, 0);
+ kmalloc_caches[KMALLOC_DMA][i] = create_kmalloc_cache(
+ n, size, SLAB_CACHE_DMA | flags, 0, 0);
}
}
#endif
@@ -1215,8 +1236,8 @@ void *kmalloc_order(size_t size, gfp_t flags, unsigned int order)
flags |= __GFP_COMP;
page = alloc_pages(flags, order);
ret = page ? page_address(page) : NULL;
+ ret = kasan_kmalloc_large(ret, size, flags);
kmemleak_alloc(ret, size, 1, flags);
- kasan_kmalloc_large(ret, size, flags);
return ret;
}
EXPORT_SYMBOL(kmalloc_order);
@@ -1494,7 +1515,7 @@ static __always_inline void *__do_krealloc(const void *p, size_t new_size,
ks = ksize(p);
if (ks >= new_size) {
- kasan_krealloc((void *)p, new_size, flags);
+ p = kasan_krealloc((void *)p, new_size, flags);
return (void *)p;
}
@@ -1546,7 +1567,7 @@ void *krealloc(const void *p, size_t new_size, gfp_t flags)
}
ret = __do_krealloc(p, new_size, flags);
- if (ret && p != ret)
+ if (ret && kasan_reset_tag(p) != kasan_reset_tag(ret))
kfree(p);
return ret;
diff --git a/mm/slob.c b/mm/slob.c
index 307c2c9..3b18cde 100644
--- a/mm/slob.c
+++ b/mm/slob.c
@@ -474,6 +474,7 @@ void *__kmalloc_track_caller(size_t size, gfp_t gfp, unsigned long caller)
{
return __do_kmalloc_node(size, gfp, NUMA_NO_NODE, caller);
}
+EXPORT_SYMBOL(__kmalloc_track_caller);
#ifdef CONFIG_NUMA
void *__kmalloc_node_track_caller(size_t size, gfp_t gfp,
@@ -481,6 +482,7 @@ void *__kmalloc_node_track_caller(size_t size, gfp_t gfp,
{
return __do_kmalloc_node(size, gfp, node, caller);
}
+EXPORT_SYMBOL(__kmalloc_node_track_caller);
#endif
void kfree(const void *block)
diff --git a/mm/slub.c b/mm/slub.c
index b6c5c8f..65c71b3 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -250,7 +250,18 @@ static inline void *freelist_ptr(const struct kmem_cache *s, void *ptr,
unsigned long ptr_addr)
{
#ifdef CONFIG_SLAB_FREELIST_HARDENED
- return (void *)((unsigned long)ptr ^ s->random ^ swab(ptr_addr));
+ /*
+ * When CONFIG_KASAN_SW_TAGS is enabled, ptr_addr might be tagged.
+ * Normally, this doesn't cause any issues, as both set_freepointer()
+ * and get_freepointer() are called with a pointer with the same tag.
+ * However, there are some issues with CONFIG_SLUB_DEBUG code. For
+ * example, when __free_slub() iterates over objects in a cache, it
+ * passes untagged pointers to check_object(). check_object() in turns
+ * calls get_freepointer() with an untagged pointer, which causes the
+ * freepointer to be restored incorrectly.
+ */
+ return (void *)((unsigned long)ptr ^ s->random ^
+ swab((unsigned long)kasan_reset_tag((void *)ptr_addr)));
#else
return ptr;
#endif
@@ -304,15 +315,10 @@ static inline void set_freepointer(struct kmem_cache *s, void *object, void *fp)
__p < (__addr) + (__objects) * (__s)->size; \
__p += (__s)->size)
-#define for_each_object_idx(__p, __idx, __s, __addr, __objects) \
- for (__p = fixup_red_left(__s, __addr), __idx = 1; \
- __idx <= __objects; \
- __p += (__s)->size, __idx++)
-
/* Determine object index from a given position */
static inline unsigned int slab_index(void *p, struct kmem_cache *s, void *addr)
{
- return (p - addr) / s->size;
+ return (kasan_reset_tag(p) - addr) / s->size;
}
static inline unsigned int order_objects(unsigned int order, unsigned int size)
@@ -508,6 +514,7 @@ static inline int check_valid_pointer(struct kmem_cache *s,
return 1;
base = page_address(page);
+ object = kasan_reset_tag(object);
object = restore_red_left(s, object);
if (object < base || object >= base + page->objects * s->size ||
(object - base) % s->size) {
@@ -1090,6 +1097,16 @@ static void setup_object_debug(struct kmem_cache *s, struct page *page,
init_tracking(s, object);
}
+static void setup_page_debug(struct kmem_cache *s, void *addr, int order)
+{
+ if (!(s->flags & SLAB_POISON))
+ return;
+
+ metadata_access_enable();
+ memset(addr, POISON_INUSE, PAGE_SIZE << order);
+ metadata_access_disable();
+}
+
static inline int alloc_consistency_checks(struct kmem_cache *s,
struct page *page,
void *object, unsigned long addr)
@@ -1286,6 +1303,10 @@ static int __init setup_slub_debug(char *str)
if (*str == ',')
slub_debug_slabs = str + 1;
out:
+ if ((static_branch_unlikely(&init_on_alloc) ||
+ static_branch_unlikely(&init_on_free)) &&
+ (slub_debug & SLAB_POISON))
+ pr_info("mem auto-init: SLAB_POISON will take precedence over init_on_alloc/init_on_free\n");
return 1;
}
@@ -1307,6 +1328,8 @@ slab_flags_t kmem_cache_flags(unsigned int object_size,
#else /* !CONFIG_SLUB_DEBUG */
static inline void setup_object_debug(struct kmem_cache *s,
struct page *page, void *object) {}
+static inline void setup_page_debug(struct kmem_cache *s,
+ void *addr, int order) {}
static inline int alloc_debug_processing(struct kmem_cache *s,
struct page *page, void *object, unsigned long addr) { return 0; }
@@ -1354,10 +1377,11 @@ static bool freelist_corrupted(struct kmem_cache *s, struct page *page,
* Hooks for other subsystems that check memory allocations. In a typical
* production configuration these hooks all should produce no code at all.
*/
-static inline void kmalloc_large_node_hook(void *ptr, size_t size, gfp_t flags)
+static inline void *kmalloc_large_node_hook(void *ptr, size_t size, gfp_t flags)
{
+ ptr = kasan_kmalloc_large(ptr, size, flags);
kmemleak_alloc(ptr, size, 1, flags);
- kasan_kmalloc_large(ptr, size, flags);
+ return ptr;
}
static __always_inline void kfree_hook(void *x)
@@ -1394,18 +1418,11 @@ static __always_inline bool slab_free_hook(struct kmem_cache *s, void *x)
static inline bool slab_free_freelist_hook(struct kmem_cache *s,
void **head, void **tail)
{
-/*
- * Compiler cannot detect this function can be removed if slab_free_hook()
- * evaluates to nothing. Thus, catch all relevant config debug options here.
- */
-#if defined(CONFIG_LOCKDEP) || \
- defined(CONFIG_DEBUG_KMEMLEAK) || \
- defined(CONFIG_DEBUG_OBJECTS_FREE) || \
- defined(CONFIG_KASAN)
void *object;
void *next = *head;
void *old_tail = *tail ? *tail : *head;
+ int rsize;
/* Head and tail of the reconstructed freelist */
*head = NULL;
@@ -1414,6 +1431,19 @@ static inline bool slab_free_freelist_hook(struct kmem_cache *s,
do {
object = next;
next = get_freepointer(s, object);
+
+ if (slab_want_init_on_free(s)) {
+ /*
+ * Clear the object and the metadata, but don't touch
+ * the redzone.
+ */
+ memset(object, 0, s->object_size);
+ rsize = (s->flags & SLAB_RED_ZONE) ? s->red_left_pad
+ : 0;
+ memset((char *)object + s->inuse, 0,
+ s->size - s->inuse - rsize);
+
+ }
/* If object's reuse doesn't have to be delayed */
if (!slab_free_hook(s, object)) {
/* Move object to the new freelist */
@@ -1428,21 +1458,19 @@ static inline bool slab_free_freelist_hook(struct kmem_cache *s,
*tail = NULL;
return *head != NULL;
-#else
- return true;
-#endif
}
-static void setup_object(struct kmem_cache *s, struct page *page,
+static void *setup_object(struct kmem_cache *s, struct page *page,
void *object)
{
setup_object_debug(s, page, object);
- kasan_init_slab_obj(s, object);
+ object = kasan_init_slab_obj(s, object);
if (unlikely(s->ctor)) {
kasan_unpoison_object_data(s, object);
s->ctor(object);
kasan_poison_object_data(s, object);
}
+ return object;
}
/*
@@ -1550,16 +1578,16 @@ static bool shuffle_freelist(struct kmem_cache *s, struct page *page)
/* First entry is used as the base of the freelist */
cur = next_freelist_entry(s, page, &pos, start, page_limit,
freelist_count);
+ cur = setup_object(s, page, cur);
page->freelist = cur;
for (idx = 1; idx < page->objects; idx++) {
- setup_object(s, page, cur);
next = next_freelist_entry(s, page, &pos, start, page_limit,
freelist_count);
+ next = setup_object(s, page, next);
set_freepointer(s, cur, next);
cur = next;
}
- setup_object(s, page, cur);
set_freepointer(s, cur, NULL);
return true;
@@ -1581,7 +1609,7 @@ static struct page *allocate_slab(struct kmem_cache *s, gfp_t flags, int node)
struct page *page;
struct kmem_cache_order_objects oo = s->oo;
gfp_t alloc_gfp;
- void *start, *p;
+ void *start, *p, *next;
int idx, order;
bool shuffle;
@@ -1622,24 +1650,25 @@ static struct page *allocate_slab(struct kmem_cache *s, gfp_t flags, int node)
if (page_is_pfmemalloc(page))
SetPageSlabPfmemalloc(page);
+ kasan_poison_slab(page);
+
start = page_address(page);
- if (unlikely(s->flags & SLAB_POISON))
- memset(start, POISON_INUSE, PAGE_SIZE << order);
-
- kasan_poison_slab(page);
+ setup_page_debug(s, start, order);
shuffle = shuffle_freelist(s, page);
if (!shuffle) {
- for_each_object_idx(p, idx, s, start, page->objects) {
- setup_object(s, page, p);
- if (likely(idx < page->objects))
- set_freepointer(s, p, p + s->size);
- else
- set_freepointer(s, p, NULL);
+ start = fixup_red_left(s, start);
+ start = setup_object(s, page, start);
+ page->freelist = start;
+ for (idx = 0, p = start; idx < page->objects - 1; idx++) {
+ next = p + s->size;
+ next = setup_object(s, page, next);
+ set_freepointer(s, p, next);
+ p = next;
}
- page->freelist = fixup_red_left(s, start);
+ set_freepointer(s, p, NULL);
}
page->inuse = page->objects;
@@ -2648,6 +2677,17 @@ static void *__slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node,
}
/*
+ * If the object has been wiped upon free, make sure it's fully initialized by
+ * zeroing out freelist pointer.
+ */
+static __always_inline void maybe_wipe_obj_freeptr(struct kmem_cache *s,
+ void *obj)
+{
+ if (unlikely(slab_want_init_on_free(s)) && obj)
+ memset((void *)((char *)obj + s->offset), 0, sizeof(void *));
+}
+
+/*
* Inlined fastpath so that allocation functions (kmalloc, kmem_cache_alloc)
* have the fastpath folded into their functions. So no function call
* overhead for requests that can be satisfied on the fastpath.
@@ -2736,7 +2776,9 @@ static __always_inline void *slab_alloc_node(struct kmem_cache *s,
stat(s, ALLOC_FASTPATH);
}
- if (unlikely(gfpflags & __GFP_ZERO) && object)
+ maybe_wipe_obj_freeptr(s, object);
+
+ if (unlikely(slab_want_init_on_alloc(gfpflags, s)) && object)
memset(object, 0, s->object_size);
slab_post_alloc_hook(s, gfpflags, 1, &object);
@@ -2766,7 +2808,7 @@ void *kmem_cache_alloc_trace(struct kmem_cache *s, gfp_t gfpflags, size_t size)
{
void *ret = slab_alloc(s, gfpflags, _RET_IP_);
trace_kmalloc(_RET_IP_, ret, size, s->size, gfpflags);
- kasan_kmalloc(s, ret, size, gfpflags);
+ ret = kasan_kmalloc(s, ret, size, gfpflags);
return ret;
}
EXPORT_SYMBOL(kmem_cache_alloc_trace);
@@ -2794,7 +2836,7 @@ void *kmem_cache_alloc_node_trace(struct kmem_cache *s,
trace_kmalloc_node(_RET_IP_, ret,
size, s->size, gfpflags, node);
- kasan_kmalloc(s, ret, size, gfpflags);
+ ret = kasan_kmalloc(s, ret, size, gfpflags);
return ret;
}
EXPORT_SYMBOL(kmem_cache_alloc_node_trace);
@@ -2992,7 +3034,7 @@ static __always_inline void slab_free(struct kmem_cache *s, struct page *page,
do_slab_free(s, page, head, tail, cnt, addr);
}
-#ifdef CONFIG_KASAN
+#ifdef CONFIG_KASAN_GENERIC
void ___cache_free(struct kmem_cache *cache, void *x, unsigned long addr)
{
do_slab_free(cache, virt_to_head_page(x), x, NULL, 1, addr);
@@ -3160,16 +3202,19 @@ int kmem_cache_alloc_bulk(struct kmem_cache *s, gfp_t flags, size_t size,
goto error;
c = this_cpu_ptr(s->cpu_slab);
+ maybe_wipe_obj_freeptr(s, p[i]);
+
continue; /* goto for-loop */
}
c->freelist = get_freepointer(s, object);
p[i] = object;
+ maybe_wipe_obj_freeptr(s, p[i]);
}
c->tid = next_tid(c->tid);
local_irq_enable();
/* Clear memory outside IRQ disabled fastpath loop */
- if (unlikely(flags & __GFP_ZERO)) {
+ if (unlikely(slab_want_init_on_alloc(flags, s))) {
int j;
for (j = 0; j < i; j++)
@@ -3373,16 +3418,16 @@ static void early_kmem_cache_node_alloc(int node)
n = page->freelist;
BUG_ON(!n);
- page->freelist = get_freepointer(kmem_cache_node, n);
- page->inuse = 1;
- page->frozen = 0;
- kmem_cache_node->node[node] = n;
#ifdef CONFIG_SLUB_DEBUG
init_object(kmem_cache_node, n, SLUB_RED_ACTIVE);
init_tracking(kmem_cache_node, n);
#endif
- kasan_kmalloc(kmem_cache_node, n, sizeof(struct kmem_cache_node),
+ n = kasan_kmalloc(kmem_cache_node, n, sizeof(struct kmem_cache_node),
GFP_KERNEL);
+ page->freelist = get_freepointer(kmem_cache_node, n);
+ page->inuse = 1;
+ page->frozen = 0;
+ kmem_cache_node->node[node] = n;
init_kmem_cache_node(n);
inc_slabs_node(kmem_cache_node, node, page->objects);
@@ -3798,7 +3843,7 @@ void *__kmalloc(size_t size, gfp_t flags)
trace_kmalloc(_RET_IP_, ret, size, s->size, flags);
- kasan_kmalloc(s, ret, size, flags);
+ ret = kasan_kmalloc(s, ret, size, flags);
return ret;
}
@@ -3815,8 +3860,7 @@ static void *kmalloc_large_node(size_t size, gfp_t flags, int node)
if (page)
ptr = page_address(page);
- kmalloc_large_node_hook(ptr, size, flags);
- return ptr;
+ return kmalloc_large_node_hook(ptr, size, flags);
}
void *__kmalloc_node(size_t size, gfp_t flags, int node)
@@ -3843,7 +3887,7 @@ void *__kmalloc_node(size_t size, gfp_t flags, int node)
trace_kmalloc_node(_RET_IP_, ret, size, s->size, flags, node);
- kasan_kmalloc(s, ret, size, flags);
+ ret = kasan_kmalloc(s, ret, size, flags);
return ret;
}
@@ -3866,6 +3910,8 @@ void __check_heap_object(const void *ptr, unsigned long n, struct page *page,
unsigned int offset;
size_t object_size;
+ ptr = kasan_reset_tag(ptr);
+
/* Find object and usable object size. */
s = page->slab_cache;
@@ -4344,6 +4390,7 @@ void *__kmalloc_track_caller(size_t size, gfp_t gfpflags, unsigned long caller)
return ret;
}
+EXPORT_SYMBOL(__kmalloc_track_caller);
#ifdef CONFIG_NUMA
void *__kmalloc_node_track_caller(size_t size, gfp_t gfpflags,
@@ -4374,6 +4421,7 @@ void *__kmalloc_node_track_caller(size_t size, gfp_t gfpflags,
return ret;
}
+EXPORT_SYMBOL(__kmalloc_node_track_caller);
#endif
#ifdef CONFIG_SYSFS
@@ -4707,6 +4755,7 @@ static int list_locations(struct kmem_cache *s, char *buf,
static void __init resiliency_test(void)
{
u8 *p;
+ int type = KMALLOC_NORMAL;
BUILD_BUG_ON(KMALLOC_MIN_SIZE > 16 || KMALLOC_SHIFT_HIGH < 10);
@@ -4719,7 +4768,7 @@ static void __init resiliency_test(void)
pr_err("\n1. kmalloc-16: Clobber Redzone/next pointer 0x12->0x%p\n\n",
p + 16);
- validate_slab_cache(kmalloc_caches[4]);
+ validate_slab_cache(kmalloc_caches[type][4]);
/* Hmmm... The next two are dangerous */
p = kzalloc(32, GFP_KERNEL);
@@ -4728,33 +4777,33 @@ static void __init resiliency_test(void)
p);
pr_err("If allocated object is overwritten then not detectable\n\n");
- validate_slab_cache(kmalloc_caches[5]);
+ validate_slab_cache(kmalloc_caches[type][5]);
p = kzalloc(64, GFP_KERNEL);
p += 64 + (get_cycles() & 0xff) * sizeof(void *);
*p = 0x56;
pr_err("\n3. kmalloc-64: corrupting random byte 0x56->0x%p\n",
p);
pr_err("If allocated object is overwritten then not detectable\n\n");
- validate_slab_cache(kmalloc_caches[6]);
+ validate_slab_cache(kmalloc_caches[type][6]);
pr_err("\nB. Corruption after free\n");
p = kzalloc(128, GFP_KERNEL);
kfree(p);
*p = 0x78;
pr_err("1. kmalloc-128: Clobber first word 0x78->0x%p\n\n", p);
- validate_slab_cache(kmalloc_caches[7]);
+ validate_slab_cache(kmalloc_caches[type][7]);
p = kzalloc(256, GFP_KERNEL);
kfree(p);
p[50] = 0x9a;
pr_err("\n2. kmalloc-256: Clobber 50th byte 0x9a->0x%p\n\n", p);
- validate_slab_cache(kmalloc_caches[8]);
+ validate_slab_cache(kmalloc_caches[type][8]);
p = kzalloc(512, GFP_KERNEL);
kfree(p);
p[512] = 0xab;
pr_err("\n3. kmalloc-512: Clobber redzone 0xab->0x%p\n\n", p);
- validate_slab_cache(kmalloc_caches[9]);
+ validate_slab_cache(kmalloc_caches[type][9]);
}
#else
#ifdef CONFIG_SYSFS
diff --git a/mm/swap_state.c b/mm/swap_state.c
index 3febffe..b99e8fd 100644
--- a/mm/swap_state.c
+++ b/mm/swap_state.c
@@ -449,6 +449,7 @@ struct page *__read_swap_cache_async(swp_entry_t entry, gfp_t gfp_mask,
/*
* Initiate read into locked page and return.
*/
+ SetPageWorkingset(new_page);
lru_cache_add_anon(new_page);
*new_page_allocated = true;
return new_page;
diff --git a/mm/swapfile.c b/mm/swapfile.c
index 057e690..89fd3db 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -2376,6 +2376,7 @@ add_swap_extent(struct swap_info_struct *sis, unsigned long start_page,
list_add_tail(&new_se->list, &sis->first_swap_extent.list);
return 1;
}
+EXPORT_SYMBOL_GPL(add_swap_extent);
/*
* A `swap extent' is a simple thing which maps a contiguous range of pages
@@ -2397,9 +2398,8 @@ add_swap_extent(struct swap_info_struct *sis, unsigned long start_page,
* requirements, they are simply tossed out - we will never use those blocks
* for swapping.
*
- * For S_ISREG swapfiles we set S_SWAPFILE across the life of the swapon. This
- * prevents root from shooting her foot off by ftruncating an in-use swapfile,
- * which will scribble on the fs.
+ * For all swap devices we set S_SWAPFILE across the life of the swapon. This
+ * prevents users from writing to the swap device, which will corrupt memory.
*
* The amount of disk space which a single swap extent represents varies.
* Typically it is in the 1-4 megabyte range. So we can have hundreds of
@@ -2662,13 +2662,14 @@ SYSCALL_DEFINE1(swapoff, const char __user *, specialfile)
inode = mapping->host;
if (S_ISBLK(inode->i_mode)) {
struct block_device *bdev = I_BDEV(inode);
+
set_blocksize(bdev, old_block_size);
blkdev_put(bdev, FMODE_READ | FMODE_WRITE | FMODE_EXCL);
- } else {
- inode_lock(inode);
- inode->i_flags &= ~S_SWAPFILE;
- inode_unlock(inode);
}
+
+ inode_lock(inode);
+ inode->i_flags &= ~S_SWAPFILE;
+ inode_unlock(inode);
filp_close(swap_file, NULL);
/*
@@ -2894,11 +2895,7 @@ static int claim_swapfile(struct swap_info_struct *p, struct inode *inode)
p->flags |= SWP_BLKDEV;
} else if (S_ISREG(inode->i_mode)) {
p->bdev = inode->i_sb->s_bdev;
- inode_lock(inode);
- if (IS_SWAPFILE(inode))
- return -EBUSY;
- } else
- return -EINVAL;
+ }
return 0;
}
@@ -3154,36 +3151,40 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
mapping = swap_file->f_mapping;
inode = mapping->host;
- /* If S_ISREG(inode->i_mode) will do inode_lock(inode); */
error = claim_swapfile(p, inode);
if (unlikely(error))
goto bad_swap;
+ inode_lock(inode);
+ if (IS_SWAPFILE(inode)) {
+ error = -EBUSY;
+ goto bad_swap_unlock_inode;
+ }
/*
* Read the swap header.
*/
if (!mapping->a_ops->readpage) {
error = -EINVAL;
- goto bad_swap;
+ goto bad_swap_unlock_inode;
}
page = read_mapping_page(mapping, 0, swap_file);
if (IS_ERR(page)) {
error = PTR_ERR(page);
- goto bad_swap;
+ goto bad_swap_unlock_inode;
}
swap_header = kmap(page);
maxpages = read_swap_header(p, swap_header, inode);
if (unlikely(!maxpages)) {
error = -EINVAL;
- goto bad_swap;
+ goto bad_swap_unlock_inode;
}
/* OK, set up the swap map and apply the bad block list */
swap_map = vzalloc(maxpages);
if (!swap_map) {
error = -ENOMEM;
- goto bad_swap;
+ goto bad_swap_unlock_inode;
}
if (bdi_cap_stable_pages_required(inode_to_bdi(inode)))
@@ -3208,7 +3209,7 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
GFP_KERNEL);
if (!cluster_info) {
error = -ENOMEM;
- goto bad_swap;
+ goto bad_swap_unlock_inode;
}
for (ci = 0; ci < nr_cluster; ci++)
@@ -3217,7 +3218,7 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
p->percpu_cluster = alloc_percpu(struct percpu_cluster);
if (!p->percpu_cluster) {
error = -ENOMEM;
- goto bad_swap;
+ goto bad_swap_unlock_inode;
}
for_each_possible_cpu(cpu) {
struct percpu_cluster *cluster;
@@ -3231,13 +3232,13 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
error = swap_cgroup_swapon(p->type, maxpages);
if (error)
- goto bad_swap;
+ goto bad_swap_unlock_inode;
nr_extents = setup_swap_map_and_extents(p, swap_header, swap_map,
cluster_info, maxpages, &span);
if (unlikely(nr_extents < 0)) {
error = nr_extents;
- goto bad_swap;
+ goto bad_swap_unlock_inode;
}
/* frontswap enabled? set up bit-per-page map for frontswap */
if (IS_ENABLED(CONFIG_FRONTSWAP))
@@ -3277,7 +3278,18 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
error = init_swap_address_space(p->type, maxpages);
if (error)
- goto bad_swap;
+ goto bad_swap_unlock_inode;
+
+ /*
+ * Flush any pending IO and dirty mappings before we start using this
+ * swap device.
+ */
+ inode->i_flags |= S_SWAPFILE;
+ error = inode_drain_writes(inode);
+ if (error) {
+ inode->i_flags &= ~S_SWAPFILE;
+ goto bad_swap_unlock_inode;
+ }
mutex_lock(&swapon_mutex);
prio = -1;
@@ -3299,10 +3311,10 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
atomic_inc(&proc_poll_event);
wake_up_interruptible(&proc_poll_wait);
- if (S_ISREG(inode->i_mode))
- inode->i_flags |= S_SWAPFILE;
error = 0;
goto out;
+bad_swap_unlock_inode:
+ inode_unlock(inode);
bad_swap:
free_percpu(p->percpu_cluster);
p->percpu_cluster = NULL;
@@ -3310,6 +3322,7 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
set_blocksize(p->bdev, p->old_block_size);
blkdev_put(p->bdev, FMODE_READ | FMODE_WRITE | FMODE_EXCL);
}
+ inode = NULL;
destroy_swap_extents(p);
swap_cgroup_swapoff(p->type);
spin_lock(&swap_lock);
@@ -3321,13 +3334,8 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
kvfree(frontswap_map);
if (inced_nr_rotate_swap)
atomic_dec(&nr_rotate_swap);
- if (swap_file) {
- if (inode && S_ISREG(inode->i_mode)) {
- inode_unlock(inode);
- inode = NULL;
- }
+ if (swap_file)
filp_close(swap_file, NULL);
- }
out:
if (page && !IS_ERR(page)) {
kunmap(page);
@@ -3335,7 +3343,7 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
}
if (name)
putname(name);
- if (inode && S_ISREG(inode->i_mode))
+ if (inode)
inode_unlock(inode);
if (!error)
enable_swap_slots_cache();
diff --git a/mm/util.c b/mm/util.c
index 621afce..65b4ea6 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -703,8 +703,7 @@ int __vm_enough_memory(struct mm_struct *mm, long pages, int cap_sys_admin)
* Part of the kernel memory, which can be released
* under memory pressure.
*/
- free += global_node_page_state(
- NR_INDIRECTLY_RECLAIMABLE_BYTES) >> PAGE_SHIFT;
+ free += global_node_page_state(NR_KERNEL_MISC_RECLAIMABLE);
/*
* Leave reserved pages. The pages are not for anonymous pages.
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 1817871..3a57f92 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -341,6 +341,13 @@ static unsigned long cached_align;
static unsigned long vmap_area_pcpu_hole;
+static atomic_long_t nr_vmalloc_pages;
+
+unsigned long vmalloc_nr_pages(void)
+{
+ return atomic_long_read(&nr_vmalloc_pages);
+}
+
static struct vmap_area *__find_vmap_area(unsigned long addr)
{
struct rb_node *n = vmap_area_root.rb_node;
@@ -1440,6 +1447,7 @@ struct vm_struct *get_vm_area(unsigned long size, unsigned long flags)
NUMA_NO_NODE, GFP_KERNEL,
__builtin_return_address(0));
}
+EXPORT_SYMBOL_GPL(get_vm_area);
struct vm_struct *get_vm_area_caller(unsigned long size, unsigned long flags,
const void *caller)
@@ -1530,6 +1538,7 @@ static void __vunmap(const void *addr, int deallocate_pages)
BUG_ON(!page);
__free_pages(page, 0);
}
+ atomic_long_sub(area->nr_pages, &nr_vmalloc_pages);
kvfree(area->pages);
}
@@ -1697,12 +1706,14 @@ static void *__vmalloc_area_node(struct vm_struct *area, gfp_t gfp_mask,
if (unlikely(!page)) {
/* Successfully allocated i pages, free them in __vunmap() */
area->nr_pages = i;
+ atomic_long_add(area->nr_pages, &nr_vmalloc_pages);
goto fail;
}
area->pages[i] = page;
if (gfpflags_allow_blocking(gfp_mask|highmem_mask))
cond_resched();
}
+ atomic_long_add(area->nr_pages, &nr_vmalloc_pages);
if (map_vm_area(area, prot, pages))
goto fail;
diff --git a/mm/vmscan.c b/mm/vmscan.c
index b7d7f6d..ae5f36f 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -49,6 +49,7 @@
#include <linux/prefetch.h>
#include <linux/printk.h>
#include <linux/dax.h>
+#include <linux/psi.h>
#include <asm/tlbflush.h>
#include <asm/div64.h>
@@ -2142,6 +2143,7 @@ static void shrink_active_list(unsigned long nr_to_scan,
}
ClearPageActive(page); /* we are de-activating */
+ SetPageWorkingset(page);
list_add(&page->lru, &l_inactive);
}
@@ -3302,6 +3304,7 @@ unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *memcg,
{
struct zonelist *zonelist;
unsigned long nr_reclaimed;
+ unsigned long pflags;
int nid;
unsigned int noreclaim_flag;
struct scan_control sc = {
@@ -3330,9 +3333,13 @@ unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *memcg,
sc.gfp_mask,
sc.reclaim_idx);
+ psi_memstall_enter(&pflags);
noreclaim_flag = memalloc_noreclaim_save();
+
nr_reclaimed = do_try_to_free_pages(zonelist, &sc);
+
memalloc_noreclaim_restore(noreclaim_flag);
+ psi_memstall_leave(&pflags);
trace_mm_vmscan_memcg_reclaim_end(nr_reclaimed);
@@ -3497,6 +3504,7 @@ static int balance_pgdat(pg_data_t *pgdat, int order, int classzone_idx)
int i;
unsigned long nr_soft_reclaimed;
unsigned long nr_soft_scanned;
+ unsigned long pflags;
struct zone *zone;
struct scan_control sc = {
.gfp_mask = GFP_KERNEL,
@@ -3507,6 +3515,7 @@ static int balance_pgdat(pg_data_t *pgdat, int order, int classzone_idx)
.may_swap = 1,
};
+ psi_memstall_enter(&pflags);
__fs_reclaim_acquire();
count_vm_event(PAGEOUTRUN);
@@ -3608,6 +3617,7 @@ static int balance_pgdat(pg_data_t *pgdat, int order, int classzone_idx)
out:
snapshot_refaults(NULL, pgdat);
__fs_reclaim_release();
+ psi_memstall_leave(&pflags);
/*
* Return the order kswapd stopped reclaiming at as
* prepare_kswapd_sleep() takes it into account. If another caller
diff --git a/mm/vmstat.c b/mm/vmstat.c
index 21e07e7..d139fd9 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -1117,6 +1117,9 @@ const char * const vmstat_text[] = {
"nr_mlock",
"nr_page_table_pages",
"nr_kernel_stack",
+#if IS_ENABLED(CONFIG_SHADOW_CALL_STACK)
+ "nr_shadow_call_stack_bytes",
+#endif
"nr_bounce",
#if IS_ENABLED(CONFIG_ZSMALLOC)
"nr_zspages",
@@ -1145,6 +1148,7 @@ const char * const vmstat_text[] = {
"nr_isolated_file",
"workingset_refault",
"workingset_activate",
+ "workingset_restore",
"workingset_nodereclaim",
"nr_anon_pages",
"nr_mapped",
@@ -1161,8 +1165,13 @@ const char * const vmstat_text[] = {
"nr_vmscan_immediate_reclaim",
"nr_dirtied",
"nr_written",
- "", /* nr_indirectly_reclaimable */
+ "nr_kernel_misc_reclaimable",
+ "nr_unreclaimable_pages",
+
+ "nr_ion_heap",
+ "nr_ion_heap_pool",
+ "nr_gpu_heap",
/* enum writeback_stat_item counters */
"nr_dirty_threshold",
"nr_dirty_background_threshold",
@@ -1171,6 +1180,7 @@ const char * const vmstat_text[] = {
/* enum vm_event_item counters */
"pgpgin",
"pgpgout",
+ "pgpgoutclean",
"pswpin",
"pswpout",
@@ -1698,6 +1708,9 @@ static void *vmstat_start(struct seq_file *m, loff_t *pos)
static void *vmstat_next(struct seq_file *m, void *arg, loff_t *pos)
{
(*pos)++;
+ //nr_gpu_heap is out-of-tree now so we don't want to export it.
+ if (*pos == NR_VM_ZONE_STAT_ITEMS + NR_VM_NUMA_STAT_ITEMS + NR_GPU_HEAP)
+ (*pos)++;
if (*pos >= ARRAY_SIZE(vmstat_text))
return NULL;
return (unsigned long *)m->private + *pos;
@@ -1708,10 +1721,6 @@ static int vmstat_show(struct seq_file *m, void *arg)
unsigned long *l = arg;
unsigned long off = l - (unsigned long *)m->private;
- /* Skip hidden vmstat items. */
- if (*vmstat_text[off] == '\0')
- return 0;
-
seq_puts(m, vmstat_text[off]);
seq_put_decimal_ull(m, " ", *l);
seq_putc(m, '\n');
diff --git a/mm/workingset.c b/mm/workingset.c
index 4516dd7..8abfd26 100644
--- a/mm/workingset.c
+++ b/mm/workingset.c
@@ -121,7 +121,7 @@
* the only thing eating into inactive list space is active pages.
*
*
- * Activating refaulting pages
+ * Refaulting inactive pages
*
* All that is known about the active list is that the pages have been
* accessed more than once in the past. This means that at any given
@@ -134,6 +134,10 @@
* used less frequently than the refaulting page - or even not used at
* all anymore.
*
+ * That means if inactive cache is refaulting with a suitable refault
+ * distance, we assume the cache workingset is transitioning and put
+ * pressure on the current active list.
+ *
* If this is wrong and demotion kicks in, the pages which are truly
* used more frequently will be reactivated while the less frequently
* used once will be evicted from memory.
@@ -141,6 +145,14 @@
* But if this is right, the stale pages will be pushed out of memory
* and the used pages get to stay in cache.
*
+ * Refaulting active pages
+ *
+ * If on the other hand the refaulting pages have recently been
+ * deactivated, it means that the active list is no longer protecting
+ * actively used cache from reclaim. The cache is NOT transitioning to
+ * a different workingset; the existing workingset is thrashing in the
+ * space allocated to the page cache.
+ *
*
* Implementation
*
@@ -156,8 +168,7 @@
*/
#define EVICTION_SHIFT (RADIX_TREE_EXCEPTIONAL_ENTRY + \
- NODES_SHIFT + \
- MEM_CGROUP_ID_SHIFT)
+ 1 + NODES_SHIFT + MEM_CGROUP_ID_SHIFT)
#define EVICTION_MASK (~0UL >> EVICTION_SHIFT)
/*
@@ -170,23 +181,28 @@
*/
static unsigned int bucket_order __read_mostly;
-static void *pack_shadow(int memcgid, pg_data_t *pgdat, unsigned long eviction)
+static void *pack_shadow(int memcgid, pg_data_t *pgdat, unsigned long eviction,
+ bool workingset)
{
eviction >>= bucket_order;
eviction = (eviction << MEM_CGROUP_ID_SHIFT) | memcgid;
eviction = (eviction << NODES_SHIFT) | pgdat->node_id;
+ eviction = (eviction << 1) | workingset;
eviction = (eviction << RADIX_TREE_EXCEPTIONAL_SHIFT);
return (void *)(eviction | RADIX_TREE_EXCEPTIONAL_ENTRY);
}
static void unpack_shadow(void *shadow, int *memcgidp, pg_data_t **pgdat,
- unsigned long *evictionp)
+ unsigned long *evictionp, bool *workingsetp)
{
unsigned long entry = (unsigned long)shadow;
int memcgid, nid;
+ bool workingset;
entry >>= RADIX_TREE_EXCEPTIONAL_SHIFT;
+ workingset = entry & 1;
+ entry >>= 1;
nid = entry & ((1UL << NODES_SHIFT) - 1);
entry >>= NODES_SHIFT;
memcgid = entry & ((1UL << MEM_CGROUP_ID_SHIFT) - 1);
@@ -195,6 +211,7 @@ static void unpack_shadow(void *shadow, int *memcgidp, pg_data_t **pgdat,
*memcgidp = memcgid;
*pgdat = NODE_DATA(nid);
*evictionp = entry << bucket_order;
+ *workingsetp = workingset;
}
/**
@@ -207,8 +224,8 @@ static void unpack_shadow(void *shadow, int *memcgidp, pg_data_t **pgdat,
*/
void *workingset_eviction(struct address_space *mapping, struct page *page)
{
- struct mem_cgroup *memcg = page_memcg(page);
struct pglist_data *pgdat = page_pgdat(page);
+ struct mem_cgroup *memcg = page_memcg(page);
int memcgid = mem_cgroup_id(memcg);
unsigned long eviction;
struct lruvec *lruvec;
@@ -220,30 +237,30 @@ void *workingset_eviction(struct address_space *mapping, struct page *page)
lruvec = mem_cgroup_lruvec(pgdat, memcg);
eviction = atomic_long_inc_return(&lruvec->inactive_age);
- return pack_shadow(memcgid, pgdat, eviction);
+ return pack_shadow(memcgid, pgdat, eviction, PageWorkingset(page));
}
/**
* workingset_refault - evaluate the refault of a previously evicted page
+ * @page: the freshly allocated replacement page
* @shadow: shadow entry of the evicted page
*
* Calculates and evaluates the refault distance of the previously
* evicted page in the context of the node it was allocated in.
- *
- * Returns %true if the page should be activated, %false otherwise.
*/
-bool workingset_refault(void *shadow)
+void workingset_refault(struct page *page, void *shadow)
{
unsigned long refault_distance;
+ struct pglist_data *pgdat;
unsigned long active_file;
struct mem_cgroup *memcg;
unsigned long eviction;
struct lruvec *lruvec;
unsigned long refault;
- struct pglist_data *pgdat;
+ bool workingset;
int memcgid;
- unpack_shadow(shadow, &memcgid, &pgdat, &eviction);
+ unpack_shadow(shadow, &memcgid, &pgdat, &eviction, &workingset);
rcu_read_lock();
/*
@@ -263,41 +280,51 @@ bool workingset_refault(void *shadow)
* configurations instead.
*/
memcg = mem_cgroup_from_id(memcgid);
- if (!mem_cgroup_disabled() && !memcg) {
- rcu_read_unlock();
- return false;
- }
+ if (!mem_cgroup_disabled() && !memcg)
+ goto out;
lruvec = mem_cgroup_lruvec(pgdat, memcg);
refault = atomic_long_read(&lruvec->inactive_age);
active_file = lruvec_lru_size(lruvec, LRU_ACTIVE_FILE, MAX_NR_ZONES);
/*
- * The unsigned subtraction here gives an accurate distance
- * across inactive_age overflows in most cases.
+ * Calculate the refault distance
*
- * There is a special case: usually, shadow entries have a
- * short lifetime and are either refaulted or reclaimed along
- * with the inode before they get too old. But it is not
- * impossible for the inactive_age to lap a shadow entry in
- * the field, which can then can result in a false small
- * refault distance, leading to a false activation should this
- * old entry actually refault again. However, earlier kernels
- * used to deactivate unconditionally with *every* reclaim
- * invocation for the longest time, so the occasional
- * inappropriate activation leading to pressure on the active
- * list is not a problem.
+ * The unsigned subtraction here gives an accurate distance
+ * across inactive_age overflows in most cases. There is a
+ * special case: usually, shadow entries have a short lifetime
+ * and are either refaulted or reclaimed along with the inode
+ * before they get too old. But it is not impossible for the
+ * inactive_age to lap a shadow entry in the field, which can
+ * then result in a false small refault distance, leading to a
+ * false activation should this old entry actually refault
+ * again. However, earlier kernels used to deactivate
+ * unconditionally with *every* reclaim invocation for the
+ * longest time, so the occasional inappropriate activation
+ * leading to pressure on the active list is not a problem.
*/
refault_distance = (refault - eviction) & EVICTION_MASK;
inc_lruvec_state(lruvec, WORKINGSET_REFAULT);
- if (refault_distance <= active_file) {
- inc_lruvec_state(lruvec, WORKINGSET_ACTIVATE);
- rcu_read_unlock();
- return true;
+ /*
+ * Compare the distance to the existing workingset size. We
+ * don't act on pages that couldn't stay resident even if all
+ * the memory was available to the page cache.
+ */
+ if (refault_distance > active_file)
+ goto out;
+
+ SetPageActive(page);
+ atomic_long_inc(&lruvec->inactive_age);
+ inc_lruvec_state(lruvec, WORKINGSET_ACTIVATE);
+
+ /* Page was active prior to eviction */
+ if (workingset) {
+ SetPageWorkingset(page);
+ inc_lruvec_state(lruvec, WORKINGSET_RESTORE);
}
+out:
rcu_read_unlock();
- return false;
}
/**
diff --git a/net/Kconfig b/net/Kconfig
index 228dfa3..49ccc28 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -184,7 +184,6 @@
depends on NETFILTER && INET
depends on NETFILTER_ADVANCED
select NETFILTER_FAMILY_BRIDGE
- default m
---help---
Enabling this option will let arptables resp. iptables see bridged
ARP resp. IP traffic. If you want a bridging firewall, you probably
diff --git a/net/OWNERS b/net/OWNERS
new file mode 100644
index 0000000..ddb7653
--- /dev/null
+++ b/net/OWNERS
@@ -0,0 +1,2 @@
+# include OWNERS from the authoritative android-mainline branch
+include kernel/common:android-mainline:/net/OWNERS
diff --git a/net/core/dev.c b/net/core/dev.c
index a679811..3aa9114 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5850,8 +5850,7 @@ static int process_backlog(struct napi_struct *napi, int quota)
rcu_read_unlock();
input_queue_head_incr(sd);
if (++work >= quota)
- return work;
-
+ goto state_changed;
}
local_irq_disable();
@@ -5875,6 +5874,10 @@ static int process_backlog(struct napi_struct *napi, int quota)
local_irq_enable();
}
+state_changed:
+ napi_gro_flush(napi, false);
+ sd->current_napi = NULL;
+
return work;
}
@@ -5977,9 +5980,12 @@ bool napi_complete_done(struct napi_struct *n, int work_done)
HRTIMER_MODE_REL_PINNED);
}
if (unlikely(!list_empty(&n->poll_list))) {
+ struct softnet_data *sd = this_cpu_ptr(&softnet_data);
+
/* If n->poll_list is not empty, we need to mask irqs */
local_irq_save(flags);
list_del_init(&n->poll_list);
+ sd->current_napi = NULL;
local_irq_restore(flags);
}
@@ -6258,6 +6264,14 @@ void netif_napi_del(struct napi_struct *napi)
}
EXPORT_SYMBOL(netif_napi_del);
+struct napi_struct *get_current_napi_context(void)
+{
+ struct softnet_data *sd = this_cpu_ptr(&softnet_data);
+
+ return sd->current_napi;
+}
+EXPORT_SYMBOL(get_current_napi_context);
+
static int napi_poll(struct napi_struct *n, struct list_head *repoll)
{
void *have;
@@ -6277,6 +6291,9 @@ static int napi_poll(struct napi_struct *n, struct list_head *repoll)
*/
work = 0;
if (test_bit(NAPI_STATE_SCHED, &n->state)) {
+ struct softnet_data *sd = this_cpu_ptr(&softnet_data);
+
+ sd->current_napi = n;
work = n->poll(n, weight);
trace_napi_poll(n, work, weight);
}
@@ -9716,7 +9733,7 @@ static void __net_exit default_device_exit(struct net *net)
continue;
/* Leave virtual devices for the generic cleanup */
- if (dev->rtnl_link_ops && !dev->rtnl_link_ops->netns_refund)
+ if (dev->rtnl_link_ops)
continue;
/* Push remaining network devices to init_net */
diff --git a/net/core/filter.c b/net/core/filter.c
index 01496c7..780c710 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -4843,6 +4843,8 @@ bpf_base_func_proto(enum bpf_func_id func_id)
return &bpf_tail_call_proto;
case BPF_FUNC_ktime_get_ns:
return &bpf_ktime_get_ns_proto;
+ case BPF_FUNC_ktime_get_boot_ns:
+ return &bpf_ktime_get_boot_ns_proto;
case BPF_FUNC_trace_printk:
if (capable(CAP_SYS_ADMIN))
return bpf_get_trace_printk_proto();
@@ -4958,6 +4960,8 @@ tc_cls_act_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
return &bpf_skb_adjust_room_proto;
case BPF_FUNC_skb_change_tail:
return &bpf_skb_change_tail_proto;
+ case BPF_FUNC_skb_change_head:
+ return &bpf_skb_change_head_proto;
case BPF_FUNC_skb_get_tunnel_key:
return &bpf_skb_get_tunnel_key_proto;
case BPF_FUNC_skb_set_tunnel_key:
diff --git a/net/core/net-traces.c b/net/core/net-traces.c
index 419af6d..0925c7b 100644
--- a/net/core/net-traces.c
+++ b/net/core/net-traces.c
@@ -35,13 +35,11 @@
#include <trace/events/tcp.h>
#include <trace/events/fib.h>
#include <trace/events/qdisc.h>
-#if IS_ENABLED(CONFIG_BRIDGE)
#include <trace/events/bridge.h>
EXPORT_TRACEPOINT_SYMBOL_GPL(br_fdb_add);
EXPORT_TRACEPOINT_SYMBOL_GPL(br_fdb_external_learn_add);
EXPORT_TRACEPOINT_SYMBOL_GPL(fdb_delete);
EXPORT_TRACEPOINT_SYMBOL_GPL(br_fdb_update);
-#endif
EXPORT_TRACEPOINT_SYMBOL_GPL(kfree_skb);
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index e1daab4..8a628ea 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -5642,3 +5642,4 @@ void skb_condense(struct sk_buff *skb)
*/
skb->truesize = SKB_TRUESIZE(skb_end_offset(skb));
}
+EXPORT_SYMBOL_GPL(skb_condense);
diff --git a/net/core/sock.c b/net/core/sock.c
index 956af38..49025c1 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1460,7 +1460,7 @@ static struct sock *sk_prot_alloc(struct proto *prot, gfp_t priority,
sk = kmem_cache_alloc(slab, priority & ~__GFP_ZERO);
if (!sk)
return sk;
- if (priority & __GFP_ZERO)
+ if (want_init_on_alloc(priority))
sk_prot_clear_nulls(sk, prot->obj_size);
} else
sk = kmalloc(prot->obj_size, priority);
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 15804cf..1a0953b2 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -807,17 +807,10 @@ static void igmp_gq_timer_expire(struct timer_list *t)
static void igmp_ifc_timer_expire(struct timer_list *t)
{
struct in_device *in_dev = from_timer(in_dev, t, mr_ifc_timer);
- u32 mr_ifc_count;
igmpv3_send_cr(in_dev);
-restart:
- mr_ifc_count = READ_ONCE(in_dev->mr_ifc_count);
-
- if (mr_ifc_count) {
- if (cmpxchg(&in_dev->mr_ifc_count,
- mr_ifc_count,
- mr_ifc_count - 1) != mr_ifc_count)
- goto restart;
+ if (in_dev->mr_ifc_count) {
+ in_dev->mr_ifc_count--;
igmp_ifc_start_timer(in_dev,
unsolicited_report_interval(in_dev));
}
@@ -829,7 +822,7 @@ static void igmp_ifc_event(struct in_device *in_dev)
struct net *net = dev_net(in_dev->dev);
if (IGMP_V1_SEEN(in_dev) || IGMP_V2_SEEN(in_dev))
return;
- WRITE_ONCE(in_dev->mr_ifc_count, in_dev->mr_qrv ?: net->ipv4.sysctl_igmp_qrv);
+ in_dev->mr_ifc_count = in_dev->mr_qrv ?: net->ipv4.sysctl_igmp_qrv;
igmp_ifc_start_timer(in_dev, 1);
}
@@ -968,7 +961,7 @@ static bool igmp_heard_query(struct in_device *in_dev, struct sk_buff *skb,
in_dev->mr_qri;
}
/* cancel the interface change timer */
- WRITE_ONCE(in_dev->mr_ifc_count, 0);
+ in_dev->mr_ifc_count = 0;
if (del_timer(&in_dev->mr_ifc_timer))
__in_dev_put(in_dev);
/* clear deleted report items */
@@ -1746,7 +1739,7 @@ void ip_mc_down(struct in_device *in_dev)
igmp_group_dropped(pmc);
#ifdef CONFIG_IP_MULTICAST
- WRITE_ONCE(in_dev->mr_ifc_count, 0);
+ in_dev->mr_ifc_count = 0;
if (del_timer(&in_dev->mr_ifc_timer))
__in_dev_put(in_dev);
in_dev->mr_gq_running = 0;
@@ -1963,7 +1956,7 @@ static int ip_mc_del_src(struct in_device *in_dev, __be32 *pmca, int sfmode,
pmc->sfmode = MCAST_INCLUDE;
#ifdef CONFIG_IP_MULTICAST
pmc->crcount = in_dev->mr_qrv ?: net->ipv4.sysctl_igmp_qrv;
- WRITE_ONCE(in_dev->mr_ifc_count, pmc->crcount);
+ in_dev->mr_ifc_count = pmc->crcount;
for (psf = pmc->sources; psf; psf = psf->sf_next)
psf->sf_crcount = 0;
igmp_ifc_event(pmc->interface);
@@ -2142,7 +2135,7 @@ static int ip_mc_add_src(struct in_device *in_dev, __be32 *pmca, int sfmode,
/* else no filters; keep old mode for reports */
pmc->crcount = in_dev->mr_qrv ?: net->ipv4.sysctl_igmp_qrv;
- WRITE_ONCE(in_dev->mr_ifc_count, pmc->crcount);
+ in_dev->mr_ifc_count = pmc->crcount;
for (psf = pmc->sources; psf; psf = psf->sf_next)
psf->sf_crcount = 0;
igmp_ifc_event(in_dev);
diff --git a/net/ipv4/ip_tunnel_core.c b/net/ipv4/ip_tunnel_core.c
index 67ef9d8..e36d102 100644
--- a/net/ipv4/ip_tunnel_core.c
+++ b/net/ipv4/ip_tunnel_core.c
@@ -440,3 +440,18 @@ void ip_tunnel_unneed_metadata(void)
static_branch_dec(&ip_tunnel_metadata_cnt);
}
EXPORT_SYMBOL_GPL(ip_tunnel_unneed_metadata);
+
+/* Returns either the correct skb->protocol value, or 0 if invalid. */
+__be16 ip_tunnel_parse_protocol(const struct sk_buff *skb)
+{
+ if (skb_network_header(skb) >= skb->head &&
+ (skb_network_header(skb) + sizeof(struct iphdr)) <= skb_tail_pointer(skb) &&
+ ip_hdr(skb)->version == 4)
+ return htons(ETH_P_IP);
+ if (skb_network_header(skb) >= skb->head &&
+ (skb_network_header(skb) + sizeof(struct ipv6hdr)) <= skb_tail_pointer(skb) &&
+ ipv6_hdr(skb)->version == 6)
+ return htons(ETH_P_IPV6);
+ return 0;
+}
+EXPORT_SYMBOL(ip_tunnel_parse_protocol);
diff --git a/net/ipv4/netfilter/nf_nat_l3proto_ipv4.c b/net/ipv4/netfilter/nf_nat_l3proto_ipv4.c
index 6a27766..593d89c0 100644
--- a/net/ipv4/netfilter/nf_nat_l3proto_ipv4.c
+++ b/net/ipv4/netfilter/nf_nat_l3proto_ipv4.c
@@ -241,7 +241,7 @@ int nf_nat_icmp_reply_translation(struct sk_buff *skb,
}
EXPORT_SYMBOL_GPL(nf_nat_icmp_reply_translation);
-static unsigned int
+unsigned int
nf_nat_ipv4_fn(void *priv, struct sk_buff *skb,
const struct nf_hook_state *state)
{
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 76c0975..0f2f167 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -220,6 +220,7 @@ static struct ipv6_devconf ipv6_devconf __read_mostly = {
.accept_ra_rt_info_max_plen = 0,
#endif
#endif
+ .accept_ra_rt_table = 0,
.proxy_ndp = 0,
.accept_source_route = 0, /* we do not accept RH0 by default. */
.disable_ipv6 = 0,
@@ -274,6 +275,7 @@ static struct ipv6_devconf ipv6_devconf_dflt __read_mostly = {
.accept_ra_rt_info_max_plen = 0,
#endif
#endif
+ .accept_ra_rt_table = 0,
.proxy_ndp = 0,
.accept_source_route = 0, /* we do not accept RH0 by default. */
.disable_ipv6 = 0,
@@ -2313,6 +2315,26 @@ static void ipv6_try_regen_rndid(struct inet6_dev *idev, struct in6_addr *tmpad
ipv6_regen_rndid(idev);
}
+u32 addrconf_rt_table(const struct net_device *dev, u32 default_table)
+{
+ struct inet6_dev *idev = in6_dev_get(dev);
+ int sysctl;
+ u32 table;
+
+ if (!idev)
+ return default_table;
+ sysctl = idev->cnf.accept_ra_rt_table;
+ if (sysctl == 0) {
+ table = default_table;
+ } else if (sysctl > 0) {
+ table = (u32) sysctl;
+ } else {
+ table = (unsigned) dev->ifindex + (-sysctl);
+ }
+ in6_dev_put(idev);
+ return table;
+}
+
/*
* Add prefix route.
*/
@@ -2323,7 +2345,7 @@ addrconf_prefix_route(struct in6_addr *pfx, int plen, u32 metric,
u32 flags, gfp_t gfp_flags)
{
struct fib6_config cfg = {
- .fc_table = l3mdev_fib_table(dev) ? : RT6_TABLE_PREFIX,
+ .fc_table = l3mdev_fib_table(dev) ? : addrconf_rt_table(dev, RT6_TABLE_PREFIX),
.fc_metric = metric ? : IP6_RT_PRIO_ADDRCONF,
.fc_ifindex = dev->ifindex,
.fc_expires = expires,
@@ -2357,7 +2379,7 @@ static struct fib6_info *addrconf_get_prefix_route(const struct in6_addr *pfx,
struct fib6_node *fn;
struct fib6_info *rt = NULL;
struct fib6_table *table;
- u32 tb_id = l3mdev_fib_table(dev) ? : RT6_TABLE_PREFIX;
+ u32 tb_id = l3mdev_fib_table(dev) ? : addrconf_rt_table(dev, RT6_TABLE_PREFIX);
table = fib6_get_table(dev_net(dev), tb_id);
if (!table)
@@ -6395,6 +6417,13 @@ static const struct ctl_table addrconf_sysctl[] = {
#endif
#endif
{
+ .procname = "accept_ra_rt_table",
+ .data = &ipv6_devconf.accept_ra_rt_table,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+ {
.procname = "proxy_ndp",
.data = &ipv6_devconf.proxy_ndp,
.maxlen = sizeof(int),
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 673a4a9..171c527 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -197,6 +197,8 @@ static inline int ndisc_is_useropt(const struct net_device *dev,
{
return opt->nd_opt_type == ND_OPT_RDNSS ||
opt->nd_opt_type == ND_OPT_DNSSL ||
+ opt->nd_opt_type == ND_OPT_CAPTIVE_PORTAL ||
+ opt->nd_opt_type == ND_OPT_PREF64 ||
ndisc_ops_is_useropt(dev, opt->nd_opt_type);
}
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index f884739..3995bc8 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -3518,7 +3518,7 @@ static struct fib6_info *rt6_get_route_info(struct net *net,
const struct in6_addr *gwaddr,
struct net_device *dev)
{
- u32 tb_id = l3mdev_fib_table(dev) ? : RT6_TABLE_INFO;
+ u32 tb_id = l3mdev_fib_table(dev) ? : addrconf_rt_table(dev, RT6_TABLE_INFO);
int ifindex = dev->ifindex;
struct fib6_node *fn;
struct fib6_info *rt = NULL;
@@ -3568,7 +3568,7 @@ static struct fib6_info *rt6_add_route_info(struct net *net,
.fc_nlinfo.nl_net = net,
};
- cfg.fc_table = l3mdev_fib_table(dev) ? : RT6_TABLE_INFO,
+ cfg.fc_table = l3mdev_fib_table(dev) ? : addrconf_rt_table(dev, RT6_TABLE_INFO),
cfg.fc_dst = *prefix;
cfg.fc_gateway = *gwaddr;
@@ -3586,7 +3586,7 @@ struct fib6_info *rt6_get_dflt_router(struct net *net,
const struct in6_addr *addr,
struct net_device *dev)
{
- u32 tb_id = l3mdev_fib_table(dev) ? : RT6_TABLE_DFLT;
+ u32 tb_id = l3mdev_fib_table(dev) ? : addrconf_rt_table(dev, RT6_TABLE_DFLT);
struct fib6_info *rt;
struct fib6_table *table;
@@ -3613,7 +3613,7 @@ struct fib6_info *rt6_add_dflt_router(struct net *net,
unsigned int pref)
{
struct fib6_config cfg = {
- .fc_table = l3mdev_fib_table(dev) ? : RT6_TABLE_DFLT,
+ .fc_table = l3mdev_fib_table(dev) ? : addrconf_rt_table(dev, RT6_TABLE_DFLT),
.fc_metric = IP6_RT_PRIO_USER,
.fc_ifindex = dev->ifindex,
.fc_flags = RTF_GATEWAY | RTF_ADDRCONF | RTF_DEFAULT |
@@ -3638,47 +3638,24 @@ struct fib6_info *rt6_add_dflt_router(struct net *net,
return rt6_get_dflt_router(net, gwaddr, dev);
}
-static void __rt6_purge_dflt_routers(struct net *net,
- struct fib6_table *table)
+static int rt6_addrconf_purge(struct fib6_info *rt, void *arg)
{
- struct fib6_info *rt;
+ struct net_device *dev = fib6_info_nh_dev(rt);
+ struct inet6_dev *idev = dev ? __in6_dev_get(dev) : NULL;
-restart:
- rcu_read_lock();
- for_each_fib6_node_rt_rcu(&table->tb6_root) {
- struct net_device *dev = fib6_info_nh_dev(rt);
- struct inet6_dev *idev = dev ? __in6_dev_get(dev) : NULL;
-
- if (rt->fib6_flags & (RTF_DEFAULT | RTF_ADDRCONF) &&
- (!idev || idev->cnf.accept_ra != 2) &&
- fib6_info_hold_safe(rt)) {
- rcu_read_unlock();
- ip6_del_rt(net, rt);
- goto restart;
- }
+ if (rt->fib6_flags & (RTF_DEFAULT | RTF_ADDRCONF) &&
+ (!idev || idev->cnf.accept_ra != 2)) {
+ /* Delete this route. See fib6_clean_tree() */
+ return -1;
}
- rcu_read_unlock();
- table->flags &= ~RT6_TABLE_HAS_DFLT_ROUTER;
+ /* Continue walking */
+ return 0;
}
void rt6_purge_dflt_routers(struct net *net)
{
- struct fib6_table *table;
- struct hlist_head *head;
- unsigned int h;
-
- rcu_read_lock();
-
- for (h = 0; h < FIB6_TABLE_HASHSZ; h++) {
- head = &net->ipv6.fib_table_hash[h];
- hlist_for_each_entry_rcu(table, head, tb6_hlist) {
- if (table->flags & RT6_TABLE_HAS_DFLT_ROUTER)
- __rt6_purge_dflt_routers(net, table);
- }
- }
-
- rcu_read_unlock();
+ fib6_clean_all(net, rt6_addrconf_purge, NULL);
}
static void rtmsg_to_fib6_config(struct net *net,
diff --git a/net/kcm/kcmsock.c b/net/kcm/kcmsock.c
index b919db0..a700cfa 100644
--- a/net/kcm/kcmsock.c
+++ b/net/kcm/kcmsock.c
@@ -381,8 +381,12 @@ static int kcm_parse_func_strparser(struct strparser *strp, struct sk_buff *skb)
{
struct kcm_psock *psock = container_of(strp, struct kcm_psock, strp);
struct bpf_prog *prog = psock->bpf_prog;
+ int res;
- return (*prog->bpf_func)(skb, prog->insnsi);
+ preempt_disable();
+ res = BPF_PROG_RUN(prog, skb);
+ preempt_enable();
+ return res;
}
static int kcm_read_sock_done(struct strparser *strp, int err)
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index cbcb60f..b77b6d0 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -160,10 +160,10 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata,
memcpy(&sta_ht_cap, &sband->ht_cap, sizeof(sta_ht_cap));
ieee80211_apply_htcap_overrides(sdata, &sta_ht_cap);
+ memset(chandef, 0, sizeof(struct cfg80211_chan_def));
chandef->chan = channel;
chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
chandef->center_freq1 = channel->center_freq;
- chandef->center_freq2 = 0;
if (!ht_oper || !sta_ht_cap.ht_supported) {
ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index aeb51e3..32f6558 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -264,6 +264,8 @@ static int ieee80211_tx_radiotap_len(struct ieee80211_tx_info *info)
/* IEEE80211_RADIOTAP_RATE rate */
if (info->status.rates[0].idx >= 0 &&
!(info->status.rates[0].flags & (IEEE80211_TX_RC_MCS |
+ RATE_INFO_FLAGS_DMG |
+ RATE_INFO_FLAGS_EDMG |
IEEE80211_TX_RC_VHT_MCS)))
len += 2;
@@ -315,6 +317,8 @@ ieee80211_add_tx_radiotap_header(struct ieee80211_local *local,
/* IEEE80211_RADIOTAP_RATE */
if (info->status.rates[0].idx >= 0 &&
!(info->status.rates[0].flags & (IEEE80211_TX_RC_MCS |
+ RATE_INFO_FLAGS_DMG |
+ RATE_INFO_FLAGS_EDMG |
IEEE80211_TX_RC_VHT_MCS))) {
u16 rate;
diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index e0fb56d..bc6983f 100644
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -1461,6 +1461,29 @@
If you want to compile it as a module, say M here and read
<file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
+config NETFILTER_XT_MATCH_QUOTA2
+ tristate '"quota2" match support'
+ depends on NETFILTER_ADVANCED
+ help
+ This option adds a `quota2' match, which allows to match on a
+ byte counter correctly and not per CPU.
+ It allows naming the quotas.
+ This is based on http://xtables-addons.git.sourceforge.net
+
+ If you want to compile it as a module, say M here and read
+ <file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
+
+config NETFILTER_XT_MATCH_QUOTA2_LOG
+ bool '"quota2" Netfilter LOG support'
+ depends on NETFILTER_XT_MATCH_QUOTA2
+ default n
+ help
+ This option allows `quota2' to log ONCE when a quota limit
+ is passed. It logs via NETLINK using the NETLINK_NFLOG family.
+ It logs similarly to how ipt_ULOG would without data.
+
+ If unsure, say `N'.
+
config NETFILTER_XT_MATCH_RATEEST
tristate '"rateest" match support'
depends on NETFILTER_ADVANCED
diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile
index 16895e0..9c87ed5 100644
--- a/net/netfilter/Makefile
+++ b/net/netfilter/Makefile
@@ -191,6 +191,7 @@
obj-$(CONFIG_NETFILTER_XT_MATCH_PKTTYPE) += xt_pkttype.o
obj-$(CONFIG_NETFILTER_XT_MATCH_POLICY) += xt_policy.o
obj-$(CONFIG_NETFILTER_XT_MATCH_QUOTA) += xt_quota.o
+obj-$(CONFIG_NETFILTER_XT_MATCH_QUOTA2) += xt_quota2.o
obj-$(CONFIG_NETFILTER_XT_MATCH_RATEEST) += xt_rateest.o
obj-$(CONFIG_NETFILTER_XT_MATCH_REALM) += xt_realm.o
obj-$(CONFIG_NETFILTER_XT_MATCH_RECENT) += xt_recent.o
diff --git a/net/netfilter/xt_IDLETIMER.c b/net/netfilter/xt_IDLETIMER.c
index 25453a1..f06a525 100644
--- a/net/netfilter/xt_IDLETIMER.c
+++ b/net/netfilter/xt_IDLETIMER.c
@@ -5,6 +5,7 @@
* After timer expires a kevent will be sent.
*
* Copyright (C) 2004, 2010 Nokia Corporation
+ *
* Written by Timo Teras <ext-timo.teras@nokia.com>
*
* Converted to x_tables and reworked for upstream inclusion
@@ -38,14 +39,17 @@
#include <linux/netfilter/xt_IDLETIMER.h>
#include <linux/kdev_t.h>
#include <linux/kobject.h>
+#include <linux/skbuff.h>
#include <linux/workqueue.h>
#include <linux/sysfs.h>
-
-struct idletimer_tg_attr {
- struct attribute attr;
- ssize_t (*show)(struct kobject *kobj,
- struct attribute *attr, char *buf);
-};
+#include <linux/rtc.h>
+#include <linux/time.h>
+#include <linux/math64.h>
+#include <linux/suspend.h>
+#include <linux/notifier.h>
+#include <net/net_namespace.h>
+#include <net/sock.h>
+#include <net/inet_sock.h>
struct idletimer_tg {
struct list_head entry;
@@ -53,16 +57,113 @@ struct idletimer_tg {
struct work_struct work;
struct kobject *kobj;
- struct idletimer_tg_attr attr;
+ struct device_attribute attr;
+ struct timespec delayed_timer_trigger;
+ struct timespec last_modified_timer;
+ struct timespec last_suspend_time;
+ struct notifier_block pm_nb;
+
+ int timeout;
unsigned int refcnt;
+ bool work_pending;
+ bool send_nl_msg;
+ bool active;
+ uid_t uid;
+ bool suspend_time_valid;
};
static LIST_HEAD(idletimer_tg_list);
static DEFINE_MUTEX(list_mutex);
+static DEFINE_SPINLOCK(timestamp_lock);
static struct kobject *idletimer_tg_kobj;
+static bool check_for_delayed_trigger(struct idletimer_tg *timer,
+ struct timespec *ts)
+{
+ bool state;
+ struct timespec temp;
+ spin_lock_bh(×tamp_lock);
+ timer->work_pending = false;
+ if ((ts->tv_sec - timer->last_modified_timer.tv_sec) > timer->timeout ||
+ timer->delayed_timer_trigger.tv_sec != 0) {
+ state = false;
+ temp.tv_sec = timer->timeout;
+ temp.tv_nsec = 0;
+ if (timer->delayed_timer_trigger.tv_sec != 0) {
+ temp = timespec_add(timer->delayed_timer_trigger, temp);
+ ts->tv_sec = temp.tv_sec;
+ ts->tv_nsec = temp.tv_nsec;
+ timer->delayed_timer_trigger.tv_sec = 0;
+ timer->work_pending = true;
+ schedule_work(&timer->work);
+ } else {
+ temp = timespec_add(timer->last_modified_timer, temp);
+ ts->tv_sec = temp.tv_sec;
+ ts->tv_nsec = temp.tv_nsec;
+ }
+ } else {
+ state = timer->active;
+ }
+ spin_unlock_bh(×tamp_lock);
+ return state;
+}
+
+static void notify_netlink_uevent(const char *iface, struct idletimer_tg *timer)
+{
+ char iface_msg[NLMSG_MAX_SIZE];
+ char state_msg[NLMSG_MAX_SIZE];
+ char timestamp_msg[NLMSG_MAX_SIZE];
+ char uid_msg[NLMSG_MAX_SIZE];
+ char *envp[] = { iface_msg, state_msg, timestamp_msg, uid_msg, NULL };
+ int res;
+ struct timespec ts;
+ uint64_t time_ns;
+ bool state;
+
+ res = snprintf(iface_msg, NLMSG_MAX_SIZE, "INTERFACE=%s",
+ iface);
+ if (NLMSG_MAX_SIZE <= res) {
+ pr_err("message too long (%d)", res);
+ return;
+ }
+
+ get_monotonic_boottime(&ts);
+ state = check_for_delayed_trigger(timer, &ts);
+ res = snprintf(state_msg, NLMSG_MAX_SIZE, "STATE=%s",
+ state ? "active" : "inactive");
+
+ if (NLMSG_MAX_SIZE <= res) {
+ pr_err("message too long (%d)", res);
+ return;
+ }
+
+ if (state) {
+ res = snprintf(uid_msg, NLMSG_MAX_SIZE, "UID=%u", timer->uid);
+ if (NLMSG_MAX_SIZE <= res)
+ pr_err("message too long (%d)", res);
+ } else {
+ res = snprintf(uid_msg, NLMSG_MAX_SIZE, "UID=");
+ if (NLMSG_MAX_SIZE <= res)
+ pr_err("message too long (%d)", res);
+ }
+
+ time_ns = timespec_to_ns(&ts);
+ res = snprintf(timestamp_msg, NLMSG_MAX_SIZE, "TIME_NS=%llu", time_ns);
+ if (NLMSG_MAX_SIZE <= res) {
+ timestamp_msg[0] = '\0';
+ pr_err("message too long (%d)", res);
+ }
+
+ pr_debug("putting nlmsg: <%s> <%s> <%s> <%s>\n", iface_msg, state_msg,
+ timestamp_msg, uid_msg);
+ kobject_uevent_env(idletimer_tg_kobj, KOBJ_CHANGE, envp);
+ return;
+
+
+}
+
static
struct idletimer_tg *__idletimer_tg_find_by_label(const char *label)
{
@@ -78,25 +179,30 @@ struct idletimer_tg *__idletimer_tg_find_by_label(const char *label)
return NULL;
}
-static ssize_t idletimer_tg_show(struct kobject *kobj, struct attribute *attr,
- char *buf)
+static ssize_t idletimer_tg_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct idletimer_tg *timer;
unsigned long expires = 0;
+ unsigned long now = jiffies;
mutex_lock(&list_mutex);
- timer = __idletimer_tg_find_by_label(attr->name);
+ timer = __idletimer_tg_find_by_label(attr->attr.name);
if (timer)
expires = timer->timer.expires;
mutex_unlock(&list_mutex);
- if (time_after(expires, jiffies))
+ if (time_after(expires, now))
return sprintf(buf, "%u\n",
- jiffies_to_msecs(expires - jiffies) / 1000);
+ jiffies_to_msecs(expires - now) / 1000);
- return sprintf(buf, "0\n");
+ if (timer->send_nl_msg)
+ return sprintf(buf, "0 %d\n",
+ jiffies_to_msecs(now - expires) / 1000);
+ else
+ return sprintf(buf, "0\n");
}
static void idletimer_tg_work(struct work_struct *work)
@@ -105,6 +211,9 @@ static void idletimer_tg_work(struct work_struct *work)
work);
sysfs_notify(idletimer_tg_kobj, NULL, timer->attr.attr.name);
+
+ if (timer->send_nl_msg)
+ notify_netlink_uevent(timer->attr.attr.name, timer);
}
static void idletimer_tg_expired(struct timer_list *t)
@@ -112,8 +221,60 @@ static void idletimer_tg_expired(struct timer_list *t)
struct idletimer_tg *timer = from_timer(timer, t, timer);
pr_debug("timer %s expired\n", timer->attr.attr.name);
-
+ spin_lock_bh(×tamp_lock);
+ timer->active = false;
+ timer->work_pending = true;
schedule_work(&timer->work);
+ spin_unlock_bh(×tamp_lock);
+}
+
+static int idletimer_resume(struct notifier_block *notifier,
+ unsigned long pm_event, void *unused)
+{
+ struct timespec ts;
+ unsigned long time_diff, now = jiffies;
+ struct idletimer_tg *timer = container_of(notifier,
+ struct idletimer_tg, pm_nb);
+ if (!timer)
+ return NOTIFY_DONE;
+ switch (pm_event) {
+ case PM_SUSPEND_PREPARE:
+ get_monotonic_boottime(&timer->last_suspend_time);
+ timer->suspend_time_valid = true;
+ break;
+ case PM_POST_SUSPEND:
+ if (!timer->suspend_time_valid)
+ break;
+ timer->suspend_time_valid = false;
+
+ spin_lock_bh(×tamp_lock);
+ if (!timer->active) {
+ spin_unlock_bh(×tamp_lock);
+ break;
+ }
+ /* since jiffies are not updated when suspended now represents
+ * the time it would have suspended */
+ if (time_after(timer->timer.expires, now)) {
+ get_monotonic_boottime(&ts);
+ ts = timespec_sub(ts, timer->last_suspend_time);
+ time_diff = timespec_to_jiffies(&ts);
+ if (timer->timer.expires > (time_diff + now)) {
+ mod_timer_pending(&timer->timer,
+ (timer->timer.expires - time_diff));
+ } else {
+ del_timer(&timer->timer);
+ timer->timer.expires = 0;
+ timer->active = false;
+ timer->work_pending = true;
+ schedule_work(&timer->work);
+ }
+ }
+ spin_unlock_bh(×tamp_lock);
+ break;
+ default:
+ break;
+ }
+ return NOTIFY_DONE;
}
static int idletimer_check_sysfs_name(const char *name, unsigned int size)
@@ -136,7 +297,7 @@ static int idletimer_tg_create(struct idletimer_tg_info *info)
{
int ret;
- info->timer = kmalloc(sizeof(*info->timer), GFP_KERNEL);
+ info->timer = kzalloc(sizeof(*info->timer), GFP_KERNEL);
if (!info->timer) {
ret = -ENOMEM;
goto out;
@@ -165,6 +326,21 @@ static int idletimer_tg_create(struct idletimer_tg_info *info)
timer_setup(&info->timer->timer, idletimer_tg_expired, 0);
info->timer->refcnt = 1;
+ info->timer->send_nl_msg = (info->send_nl_msg == 0) ? false : true;
+ info->timer->active = true;
+ info->timer->timeout = info->timeout;
+
+ info->timer->delayed_timer_trigger.tv_sec = 0;
+ info->timer->delayed_timer_trigger.tv_nsec = 0;
+ info->timer->work_pending = false;
+ info->timer->uid = 0;
+ get_monotonic_boottime(&info->timer->last_modified_timer);
+
+ info->timer->pm_nb.notifier_call = idletimer_resume;
+ ret = register_pm_notifier(&info->timer->pm_nb);
+ if (ret)
+ printk(KERN_WARNING "[%s] Failed to register pm notifier %d\n",
+ __func__, ret);
INIT_WORK(&info->timer->work, idletimer_tg_work);
@@ -181,6 +357,42 @@ static int idletimer_tg_create(struct idletimer_tg_info *info)
return ret;
}
+static void reset_timer(const struct idletimer_tg_info *info,
+ struct sk_buff *skb)
+{
+ unsigned long now = jiffies;
+ struct idletimer_tg *timer = info->timer;
+ bool timer_prev;
+
+ spin_lock_bh(×tamp_lock);
+ timer_prev = timer->active;
+ timer->active = true;
+ /* timer_prev is used to guard overflow problem in time_before*/
+ if (!timer_prev || time_before(timer->timer.expires, now)) {
+ pr_debug("Starting Checkentry timer (Expired, Jiffies): %lu, %lu\n",
+ timer->timer.expires, now);
+
+ /* Stores the uid resposible for waking up the radio */
+ if (skb && (skb->sk)) {
+ timer->uid = from_kuid_munged(current_user_ns(),
+ sock_i_uid(skb_to_full_sk(skb)));
+ }
+
+ /* checks if there is a pending inactive notification*/
+ if (timer->work_pending)
+ timer->delayed_timer_trigger = timer->last_modified_timer;
+ else {
+ timer->work_pending = true;
+ schedule_work(&timer->work);
+ }
+ }
+
+ get_monotonic_boottime(&timer->last_modified_timer);
+ mod_timer(&timer->timer,
+ msecs_to_jiffies(info->timeout * 1000) + now);
+ spin_unlock_bh(×tamp_lock);
+}
+
/*
* The actual xt_tables plugin.
*/
@@ -188,15 +400,23 @@ static unsigned int idletimer_tg_target(struct sk_buff *skb,
const struct xt_action_param *par)
{
const struct idletimer_tg_info *info = par->targinfo;
+ unsigned long now = jiffies;
pr_debug("resetting timer %s, timeout period %u\n",
info->label, info->timeout);
BUG_ON(!info->timer);
- mod_timer(&info->timer->timer,
- msecs_to_jiffies(info->timeout * 1000) + jiffies);
+ info->timer->active = true;
+ if (time_before(info->timer->timer.expires, now)) {
+ schedule_work(&info->timer->work);
+ pr_debug("Starting timer %s (Expired, Jiffies): %lu, %lu\n",
+ info->label, info->timer->timer.expires, now);
+ }
+
+ /* TODO: Avoid modifying timers on each packet */
+ reset_timer(info, skb);
return XT_CONTINUE;
}
@@ -205,7 +425,7 @@ static int idletimer_tg_checkentry(const struct xt_tgchk_param *par)
struct idletimer_tg_info *info = par->targinfo;
int ret;
- pr_debug("checkentry targinfo%s\n", info->label);
+ pr_debug("checkentry targinfo %s\n", info->label);
if (info->timeout == 0) {
pr_debug("timeout value is zero\n");
@@ -227,9 +447,7 @@ static int idletimer_tg_checkentry(const struct xt_tgchk_param *par)
info->timer = __idletimer_tg_find_by_label(info->label);
if (info->timer) {
info->timer->refcnt++;
- mod_timer(&info->timer->timer,
- msecs_to_jiffies(info->timeout * 1000) + jiffies);
-
+ reset_timer(info, NULL);
pr_debug("increased refcnt of timer %s to %u\n",
info->label, info->timer->refcnt);
} else {
@@ -242,6 +460,7 @@ static int idletimer_tg_checkentry(const struct xt_tgchk_param *par)
}
mutex_unlock(&list_mutex);
+
return 0;
}
@@ -258,13 +477,14 @@ static void idletimer_tg_destroy(const struct xt_tgdtor_param *par)
list_del(&info->timer->entry);
del_timer_sync(&info->timer->timer);
- cancel_work_sync(&info->timer->work);
sysfs_remove_file(idletimer_tg_kobj, &info->timer->attr.attr);
+ unregister_pm_notifier(&info->timer->pm_nb);
+ cancel_work_sync(&info->timer->work);
kfree(info->timer->attr.attr.name);
kfree(info->timer);
} else {
pr_debug("decreased refcnt of timer %s to %u\n",
- info->label, info->timer->refcnt);
+ info->label, info->timer->refcnt);
}
mutex_unlock(&list_mutex);
@@ -272,6 +492,7 @@ static void idletimer_tg_destroy(const struct xt_tgdtor_param *par)
static struct xt_target idletimer_tg __read_mostly = {
.name = "IDLETIMER",
+ .revision = 1,
.family = NFPROTO_UNSPEC,
.target = idletimer_tg_target,
.targetsize = sizeof(struct idletimer_tg_info),
@@ -338,3 +559,4 @@ MODULE_DESCRIPTION("Xtables: idle time monitor");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("ipt_IDLETIMER");
MODULE_ALIAS("ip6t_IDLETIMER");
+MODULE_ALIAS("arpt_IDLETIMER");
diff --git a/net/netfilter/xt_quota2.c b/net/netfilter/xt_quota2.c
new file mode 100644
index 0000000..95ebfcb
--- /dev/null
+++ b/net/netfilter/xt_quota2.c
@@ -0,0 +1,397 @@
+/*
+ * xt_quota2 - enhanced xt_quota that can count upwards and in packets
+ * as a minimal accounting match.
+ * by Jan Engelhardt <jengelh@medozas.de>, 2008
+ *
+ * Originally based on xt_quota.c:
+ * netfilter module to enforce network quotas
+ * Sam Johnston <samj@samj.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License; either
+ * version 2 of the License, as published by the Free Software Foundation.
+ */
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/proc_fs.h>
+#include <linux/skbuff.h>
+#include <linux/spinlock.h>
+#include <asm/atomic.h>
+#include <net/netlink.h>
+
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter/xt_quota2.h>
+
+#ifdef CONFIG_NETFILTER_XT_MATCH_QUOTA2_LOG
+/* For compatibility, these definitions are copied from the
+ * deprecated header file <linux/netfilter_ipv4/ipt_ULOG.h> */
+#define ULOG_MAC_LEN 80
+#define ULOG_PREFIX_LEN 32
+
+/* Format of the ULOG packets passed through netlink */
+typedef struct ulog_packet_msg {
+ unsigned long mark;
+ long timestamp_sec;
+ long timestamp_usec;
+ unsigned int hook;
+ char indev_name[IFNAMSIZ];
+ char outdev_name[IFNAMSIZ];
+ size_t data_len;
+ char prefix[ULOG_PREFIX_LEN];
+ unsigned char mac_len;
+ unsigned char mac[ULOG_MAC_LEN];
+ unsigned char payload[0];
+} ulog_packet_msg_t;
+#endif
+
+/**
+ * @lock: lock to protect quota writers from each other
+ */
+struct xt_quota_counter {
+ u_int64_t quota;
+ spinlock_t lock;
+ struct list_head list;
+ atomic_t ref;
+ char name[sizeof(((struct xt_quota_mtinfo2 *)NULL)->name)];
+ struct proc_dir_entry *procfs_entry;
+};
+
+#ifdef CONFIG_NETFILTER_XT_MATCH_QUOTA2_LOG
+/* Harald's favorite number +1 :D From ipt_ULOG.C */
+static int qlog_nl_event = 112;
+module_param_named(event_num, qlog_nl_event, uint, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(event_num,
+ "Event number for NETLINK_NFLOG message. 0 disables log."
+ "111 is what ipt_ULOG uses.");
+static struct sock *nflognl;
+#endif
+
+static LIST_HEAD(counter_list);
+static DEFINE_SPINLOCK(counter_list_lock);
+
+static struct proc_dir_entry *proc_xt_quota;
+static unsigned int quota_list_perms = S_IRUGO | S_IWUSR;
+static kuid_t quota_list_uid = KUIDT_INIT(0);
+static kgid_t quota_list_gid = KGIDT_INIT(0);
+module_param_named(perms, quota_list_perms, uint, S_IRUGO | S_IWUSR);
+
+#ifdef CONFIG_NETFILTER_XT_MATCH_QUOTA2_LOG
+static void quota2_log(unsigned int hooknum,
+ const struct sk_buff *skb,
+ const struct net_device *in,
+ const struct net_device *out,
+ const char *prefix)
+{
+ ulog_packet_msg_t *pm;
+ struct sk_buff *log_skb;
+ size_t size;
+ struct nlmsghdr *nlh;
+
+ if (!qlog_nl_event)
+ return;
+
+ size = NLMSG_SPACE(sizeof(*pm));
+ size = max(size, (size_t)NLMSG_GOODSIZE);
+ log_skb = alloc_skb(size, GFP_ATOMIC);
+ if (!log_skb) {
+ pr_err("xt_quota2: cannot alloc skb for logging\n");
+ return;
+ }
+
+ nlh = nlmsg_put(log_skb, /*pid*/0, /*seq*/0, qlog_nl_event,
+ sizeof(*pm), 0);
+ if (!nlh) {
+ pr_err("xt_quota2: nlmsg_put failed\n");
+ kfree_skb(log_skb);
+ return;
+ }
+ pm = nlmsg_data(nlh);
+ memset(pm, 0, sizeof(*pm));
+ if (skb->tstamp == 0)
+ __net_timestamp((struct sk_buff *)skb);
+ pm->hook = hooknum;
+ if (prefix != NULL)
+ strlcpy(pm->prefix, prefix, sizeof(pm->prefix));
+ if (in)
+ strlcpy(pm->indev_name, in->name, sizeof(pm->indev_name));
+ if (out)
+ strlcpy(pm->outdev_name, out->name, sizeof(pm->outdev_name));
+
+ NETLINK_CB(log_skb).dst_group = 1;
+ pr_debug("throwing 1 packets to netlink group 1\n");
+ netlink_broadcast(nflognl, log_skb, 0, 1, GFP_ATOMIC);
+}
+#else
+static void quota2_log(unsigned int hooknum,
+ const struct sk_buff *skb,
+ const struct net_device *in,
+ const struct net_device *out,
+ const char *prefix)
+{
+}
+#endif /* if+else CONFIG_NETFILTER_XT_MATCH_QUOTA2_LOG */
+
+static ssize_t quota_proc_read(struct file *file, char __user *buf,
+ size_t size, loff_t *ppos)
+{
+ struct xt_quota_counter *e = PDE_DATA(file_inode(file));
+ char tmp[24];
+ size_t tmp_size;
+
+ spin_lock_bh(&e->lock);
+ tmp_size = scnprintf(tmp, sizeof(tmp), "%llu\n", e->quota);
+ spin_unlock_bh(&e->lock);
+ return simple_read_from_buffer(buf, size, ppos, tmp, tmp_size);
+}
+
+static ssize_t quota_proc_write(struct file *file, const char __user *input,
+ size_t size, loff_t *ppos)
+{
+ struct xt_quota_counter *e = PDE_DATA(file_inode(file));
+ char buf[sizeof("18446744073709551616")];
+
+ if (size > sizeof(buf))
+ size = sizeof(buf);
+ if (copy_from_user(buf, input, size) != 0)
+ return -EFAULT;
+ buf[sizeof(buf)-1] = '\0';
+ if (size < sizeof(buf))
+ buf[size] = '\0';
+
+ spin_lock_bh(&e->lock);
+ e->quota = simple_strtoull(buf, NULL, 0);
+ spin_unlock_bh(&e->lock);
+ return size;
+}
+
+static const struct file_operations q2_counter_fops = {
+ .read = quota_proc_read,
+ .write = quota_proc_write,
+ .llseek = default_llseek,
+};
+
+static struct xt_quota_counter *
+q2_new_counter(const struct xt_quota_mtinfo2 *q, bool anon)
+{
+ struct xt_quota_counter *e;
+ unsigned int size;
+
+ /* Do not need all the procfs things for anonymous counters. */
+ size = anon ? offsetof(typeof(*e), list) : sizeof(*e);
+ e = kmalloc(size, GFP_KERNEL);
+ if (e == NULL)
+ return NULL;
+
+ e->quota = q->quota;
+ spin_lock_init(&e->lock);
+ if (!anon) {
+ INIT_LIST_HEAD(&e->list);
+ atomic_set(&e->ref, 1);
+ strlcpy(e->name, q->name, sizeof(e->name));
+ }
+ return e;
+}
+
+/**
+ * q2_get_counter - get ref to counter or create new
+ * @name: name of counter
+ */
+static struct xt_quota_counter *
+q2_get_counter(const struct xt_quota_mtinfo2 *q)
+{
+ struct proc_dir_entry *p;
+ struct xt_quota_counter *e = NULL;
+ struct xt_quota_counter *new_e;
+
+ if (*q->name == '\0')
+ return q2_new_counter(q, true);
+
+ /* No need to hold a lock while getting a new counter */
+ new_e = q2_new_counter(q, false);
+ if (new_e == NULL)
+ goto out;
+
+ spin_lock_bh(&counter_list_lock);
+ list_for_each_entry(e, &counter_list, list)
+ if (strcmp(e->name, q->name) == 0) {
+ atomic_inc(&e->ref);
+ spin_unlock_bh(&counter_list_lock);
+ kfree(new_e);
+ pr_debug("xt_quota2: old counter name=%s", e->name);
+ return e;
+ }
+ e = new_e;
+ pr_debug("xt_quota2: new_counter name=%s", e->name);
+ list_add_tail(&e->list, &counter_list);
+ /* The entry having a refcount of 1 is not directly destructible.
+ * This func has not yet returned the new entry, thus iptables
+ * has not references for destroying this entry.
+ * For another rule to try to destroy it, it would 1st need for this
+ * func* to be re-invoked, acquire a new ref for the same named quota.
+ * Nobody will access the e->procfs_entry either.
+ * So release the lock. */
+ spin_unlock_bh(&counter_list_lock);
+
+ /* create_proc_entry() is not spin_lock happy */
+ p = e->procfs_entry = proc_create_data(e->name, quota_list_perms,
+ proc_xt_quota, &q2_counter_fops, e);
+
+ if (IS_ERR_OR_NULL(p)) {
+ spin_lock_bh(&counter_list_lock);
+ list_del(&e->list);
+ spin_unlock_bh(&counter_list_lock);
+ goto out;
+ }
+ proc_set_user(p, quota_list_uid, quota_list_gid);
+ return e;
+
+ out:
+ kfree(e);
+ return NULL;
+}
+
+static int quota_mt2_check(const struct xt_mtchk_param *par)
+{
+ struct xt_quota_mtinfo2 *q = par->matchinfo;
+
+ pr_debug("xt_quota2: check() flags=0x%04x", q->flags);
+
+ if (q->flags & ~XT_QUOTA_MASK)
+ return -EINVAL;
+
+ q->name[sizeof(q->name)-1] = '\0';
+ if (*q->name == '.' || strchr(q->name, '/') != NULL) {
+ printk(KERN_ERR "xt_quota.3: illegal name\n");
+ return -EINVAL;
+ }
+
+ q->master = q2_get_counter(q);
+ if (q->master == NULL) {
+ printk(KERN_ERR "xt_quota.3: memory alloc failure\n");
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+static void quota_mt2_destroy(const struct xt_mtdtor_param *par)
+{
+ struct xt_quota_mtinfo2 *q = par->matchinfo;
+ struct xt_quota_counter *e = q->master;
+
+ if (*q->name == '\0') {
+ kfree(e);
+ return;
+ }
+
+ spin_lock_bh(&counter_list_lock);
+ if (!atomic_dec_and_test(&e->ref)) {
+ spin_unlock_bh(&counter_list_lock);
+ return;
+ }
+
+ list_del(&e->list);
+ spin_unlock_bh(&counter_list_lock);
+ remove_proc_entry(e->name, proc_xt_quota);
+ kfree(e);
+}
+
+static bool
+quota_mt2(const struct sk_buff *skb, struct xt_action_param *par)
+{
+ struct xt_quota_mtinfo2 *q = (void *)par->matchinfo;
+ struct xt_quota_counter *e = q->master;
+ int charge = (q->flags & XT_QUOTA_PACKET) ? 1 : skb->len;
+ bool no_change = q->flags & XT_QUOTA_NO_CHANGE;
+ bool ret = q->flags & XT_QUOTA_INVERT;
+
+ spin_lock_bh(&e->lock);
+ if (q->flags & XT_QUOTA_GROW) {
+ /*
+ * While no_change is pointless in "grow" mode, we will
+ * implement it here simply to have a consistent behavior.
+ */
+ if (!no_change)
+ e->quota += charge;
+ ret = true; /* note: does not respect inversion (bug??) */
+ } else {
+ if (e->quota > charge) {
+ if (!no_change)
+ e->quota -= charge;
+ ret = !ret;
+ } else if (e->quota) {
+ /* We are transitioning, log that fact. */
+ quota2_log(xt_hooknum(par),
+ skb,
+ xt_in(par),
+ xt_out(par),
+ q->name);
+ /* we do not allow even small packets from now on */
+ e->quota = 0;
+ }
+ }
+ spin_unlock_bh(&e->lock);
+ return ret;
+}
+
+static struct xt_match quota_mt2_reg[] __read_mostly = {
+ {
+ .name = "quota2",
+ .revision = 3,
+ .family = NFPROTO_IPV4,
+ .checkentry = quota_mt2_check,
+ .match = quota_mt2,
+ .destroy = quota_mt2_destroy,
+ .matchsize = sizeof(struct xt_quota_mtinfo2),
+ .usersize = offsetof(struct xt_quota_mtinfo2, master),
+ .me = THIS_MODULE,
+ },
+ {
+ .name = "quota2",
+ .revision = 3,
+ .family = NFPROTO_IPV6,
+ .checkentry = quota_mt2_check,
+ .match = quota_mt2,
+ .destroy = quota_mt2_destroy,
+ .matchsize = sizeof(struct xt_quota_mtinfo2),
+ .usersize = offsetof(struct xt_quota_mtinfo2, master),
+ .me = THIS_MODULE,
+ },
+};
+
+static int __init quota_mt2_init(void)
+{
+ int ret;
+ pr_debug("xt_quota2: init()");
+
+#ifdef CONFIG_NETFILTER_XT_MATCH_QUOTA2_LOG
+ nflognl = netlink_kernel_create(&init_net, NETLINK_NFLOG, NULL);
+ if (!nflognl)
+ return -ENOMEM;
+#endif
+
+ proc_xt_quota = proc_mkdir("xt_quota", init_net.proc_net);
+ if (proc_xt_quota == NULL)
+ return -EACCES;
+
+ ret = xt_register_matches(quota_mt2_reg, ARRAY_SIZE(quota_mt2_reg));
+ if (ret < 0)
+ remove_proc_entry("xt_quota", init_net.proc_net);
+ pr_debug("xt_quota2: init() %d", ret);
+ return ret;
+}
+
+static void __exit quota_mt2_exit(void)
+{
+ xt_unregister_matches(quota_mt2_reg, ARRAY_SIZE(quota_mt2_reg));
+ remove_proc_entry("xt_quota", init_net.proc_net);
+}
+
+module_init(quota_mt2_init);
+module_exit(quota_mt2_exit);
+MODULE_DESCRIPTION("Xtables: countdown quota match; up counter");
+MODULE_AUTHOR("Sam Johnston <samj@samj.net>");
+MODULE_AUTHOR("Jan Engelhardt <jengelh@medozas.de>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("ipt_quota2");
+MODULE_ALIAS("ip6t_quota2");
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index ede73ec..cec2caa 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -961,11 +961,60 @@ static struct genl_family genl_ctrl __ro_after_init = {
.netnsok = true,
};
+static int genl_bind(struct net *net, int group)
+{
+ struct genl_family *f;
+ int err = 0;
+ unsigned int id;
+
+ down_read(&cb_lock);
+
+ idr_for_each_entry(&genl_fam_idr, f, id) {
+ if (group >= f->mcgrp_offset &&
+ group < f->mcgrp_offset + f->n_mcgrps) {
+ int fam_grp = group - f->mcgrp_offset;
+
+ if (!f->netnsok && net != &init_net)
+ err = -ENOENT;
+ else if (f->mcast_bind)
+ err = f->mcast_bind(net, fam_grp);
+ else
+ err = 0;
+ break;
+ }
+ }
+ up_read(&cb_lock);
+
+ return err;
+}
+
+static void genl_unbind(struct net *net, int group)
+{
+ struct genl_family *f;
+ unsigned int id;
+
+ down_read(&cb_lock);
+
+ idr_for_each_entry(&genl_fam_idr, f, id) {
+ if (group >= f->mcgrp_offset &&
+ group < f->mcgrp_offset + f->n_mcgrps) {
+ int fam_grp = group - f->mcgrp_offset;
+
+ if (f->mcast_unbind)
+ f->mcast_unbind(net, fam_grp);
+ break;
+ }
+ }
+ up_read(&cb_lock);
+}
+
static int __net_init genl_pernet_init(struct net *net)
{
struct netlink_kernel_cfg cfg = {
.input = genl_rcv,
.flags = NL_CFG_F_NONROOT_RECV,
+ .bind = genl_bind,
+ .unbind = genl_unbind,
};
/* we'll bump the group number right afterwards */
diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c
index cbb336f..c04d4ca 100644
--- a/net/vmw_vsock/virtio_transport_common.c
+++ b/net/vmw_vsock/virtio_transport_common.c
@@ -27,6 +27,10 @@
/* How long to wait for graceful shutdown of a connection */
#define VSOCK_CLOSE_TIMEOUT (8 * HZ)
+uint virtio_transport_max_vsock_pkt_buf_size = 64 * 1024;
+module_param(virtio_transport_max_vsock_pkt_buf_size, uint, 0444);
+EXPORT_SYMBOL_GPL(virtio_transport_max_vsock_pkt_buf_size);
+
static const struct virtio_transport *virtio_transport_get_ops(void)
{
const struct vsock_transport *t = vsock_core_get_transport();
diff --git a/net/wireless/chan.c b/net/wireless/chan.c
index 2db713d..5d5333a 100644
--- a/net/wireless/chan.c
+++ b/net/wireless/chan.c
@@ -13,6 +13,11 @@
#include "core.h"
#include "rdev-ops.h"
+static bool cfg80211_valid_60g_freq(u32 freq)
+{
+ return freq >= 58320 && freq <= 70200;
+}
+
void cfg80211_chandef_create(struct cfg80211_chan_def *chandef,
struct ieee80211_channel *chan,
enum nl80211_channel_type chan_type)
@@ -22,6 +27,8 @@ void cfg80211_chandef_create(struct cfg80211_chan_def *chandef,
chandef->chan = chan;
chandef->center_freq2 = 0;
+ chandef->edmg.bw_config = 0;
+ chandef->edmg.channels = 0;
switch (chan_type) {
case NL80211_CHAN_NO_HT:
@@ -46,6 +53,91 @@ void cfg80211_chandef_create(struct cfg80211_chan_def *chandef,
}
EXPORT_SYMBOL(cfg80211_chandef_create);
+static bool cfg80211_edmg_chandef_valid(const struct cfg80211_chan_def *chandef)
+{
+ int max_contiguous = 0;
+ int num_of_enabled = 0;
+ int contiguous = 0;
+ int i;
+
+ if (!chandef->edmg.channels || !chandef->edmg.bw_config)
+ return false;
+
+ if (!cfg80211_valid_60g_freq(chandef->chan->center_freq))
+ return false;
+
+ for (i = 0; i < 6; i++) {
+ if (chandef->edmg.channels & BIT(i)) {
+ contiguous++;
+ num_of_enabled++;
+ } else {
+ contiguous = 0;
+ }
+
+ max_contiguous = max(contiguous, max_contiguous);
+ }
+ /* basic verification of edmg configuration according to
+ * IEEE P802.11ay/D4.0 section 9.4.2.251
+ */
+ /* check bw_config against contiguous edmg channels */
+ switch (chandef->edmg.bw_config) {
+ case IEEE80211_EDMG_BW_CONFIG_4:
+ case IEEE80211_EDMG_BW_CONFIG_8:
+ case IEEE80211_EDMG_BW_CONFIG_12:
+ if (max_contiguous < 1)
+ return false;
+ break;
+ case IEEE80211_EDMG_BW_CONFIG_5:
+ case IEEE80211_EDMG_BW_CONFIG_9:
+ case IEEE80211_EDMG_BW_CONFIG_13:
+ if (max_contiguous < 2)
+ return false;
+ break;
+ case IEEE80211_EDMG_BW_CONFIG_6:
+ case IEEE80211_EDMG_BW_CONFIG_10:
+ case IEEE80211_EDMG_BW_CONFIG_14:
+ if (max_contiguous < 3)
+ return false;
+ break;
+ case IEEE80211_EDMG_BW_CONFIG_7:
+ case IEEE80211_EDMG_BW_CONFIG_11:
+ case IEEE80211_EDMG_BW_CONFIG_15:
+ if (max_contiguous < 4)
+ return false;
+ break;
+
+ default:
+ return false;
+ }
+
+ /* check bw_config against aggregated (non contiguous) edmg channels */
+ switch (chandef->edmg.bw_config) {
+ case IEEE80211_EDMG_BW_CONFIG_4:
+ case IEEE80211_EDMG_BW_CONFIG_5:
+ case IEEE80211_EDMG_BW_CONFIG_6:
+ case IEEE80211_EDMG_BW_CONFIG_7:
+ break;
+ case IEEE80211_EDMG_BW_CONFIG_8:
+ case IEEE80211_EDMG_BW_CONFIG_9:
+ case IEEE80211_EDMG_BW_CONFIG_10:
+ case IEEE80211_EDMG_BW_CONFIG_11:
+ if (num_of_enabled < 2)
+ return false;
+ break;
+ case IEEE80211_EDMG_BW_CONFIG_12:
+ case IEEE80211_EDMG_BW_CONFIG_13:
+ case IEEE80211_EDMG_BW_CONFIG_14:
+ case IEEE80211_EDMG_BW_CONFIG_15:
+ if (num_of_enabled < 4 || max_contiguous < 2)
+ return false;
+ break;
+ default:
+ return false;
+ }
+
+ return true;
+}
+
bool cfg80211_chandef_valid(const struct cfg80211_chan_def *chandef)
{
u32 control_freq;
@@ -111,6 +203,10 @@ bool cfg80211_chandef_valid(const struct cfg80211_chan_def *chandef)
return false;
}
+ if (cfg80211_chandef_is_edmg(chandef) &&
+ !cfg80211_edmg_chandef_valid(chandef))
+ return false;
+
return true;
}
EXPORT_SYMBOL(cfg80211_chandef_valid);
@@ -720,12 +816,66 @@ static bool cfg80211_secondary_chans_ok(struct wiphy *wiphy,
return true;
}
+/* check if the operating channels are valid and supported */
+static bool cfg80211_edmg_usable(struct wiphy *wiphy, u8 edmg_channels,
+ enum ieee80211_edmg_bw_config edmg_bw_config,
+ int primary_channel,
+ struct ieee80211_edmg *edmg_cap)
+{
+ struct ieee80211_channel *chan;
+ int i, freq;
+ int channels_counter = 0;
+
+ if (!edmg_channels && !edmg_bw_config)
+ return true;
+
+ if ((!edmg_channels && edmg_bw_config) ||
+ (edmg_channels && !edmg_bw_config))
+ return false;
+
+ if (!(edmg_channels & BIT(primary_channel - 1)))
+ return false;
+
+ /* 60GHz channels 1..6 */
+ for (i = 0; i < 6; i++) {
+ if (!(edmg_channels & BIT(i)))
+ continue;
+
+ if (!(edmg_cap->channels & BIT(i)))
+ return false;
+
+ channels_counter++;
+
+ freq = ieee80211_channel_to_frequency(i + 1,
+ NL80211_BAND_60GHZ);
+ chan = ieee80211_get_channel(wiphy, freq);
+ if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
+ return false;
+ }
+
+ /* IEEE802.11 allows max 4 channels */
+ if (channels_counter > 4)
+ return false;
+
+ /* check bw_config is a subset of what driver supports
+ * (see IEEE P802.11ay/D4.0 section 9.4.2.251, Table 13)
+ */
+ if ((edmg_bw_config % 4) > (edmg_cap->bw_config % 4))
+ return false;
+
+ if (edmg_bw_config > edmg_cap->bw_config)
+ return false;
+
+ return true;
+}
+
bool cfg80211_chandef_usable(struct wiphy *wiphy,
const struct cfg80211_chan_def *chandef,
u32 prohibited_flags)
{
struct ieee80211_sta_ht_cap *ht_cap;
struct ieee80211_sta_vht_cap *vht_cap;
+ struct ieee80211_edmg *edmg_cap;
u32 width, control_freq, cap;
if (WARN_ON(!cfg80211_chandef_valid(chandef)))
@@ -733,6 +883,15 @@ bool cfg80211_chandef_usable(struct wiphy *wiphy,
ht_cap = &wiphy->bands[chandef->chan->band]->ht_cap;
vht_cap = &wiphy->bands[chandef->chan->band]->vht_cap;
+ edmg_cap = &wiphy->bands[chandef->chan->band]->edmg_cap;
+
+ if (edmg_cap->channels &&
+ !cfg80211_edmg_usable(wiphy,
+ chandef->edmg.channels,
+ chandef->edmg.bw_config,
+ chandef->chan->hw_value,
+ edmg_cap))
+ return false;
control_freq = chandef->chan->center_freq;
diff --git a/net/wireless/core.h b/net/wireless/core.h
index 5f177da..b91363a 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -3,6 +3,7 @@
* Wireless configuration interface internals.
*
* Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
+ * Copyright (C) 2018-2019 Intel Corporation
*/
#ifndef __NET_WIRELESS_CORE_H
#define __NET_WIRELESS_CORE_H
@@ -170,12 +171,23 @@ static inline struct cfg80211_internal_bss *bss_from_pub(struct cfg80211_bss *pu
static inline void cfg80211_hold_bss(struct cfg80211_internal_bss *bss)
{
atomic_inc(&bss->hold);
+ if (bss->pub.transmitted_bss) {
+ bss = container_of(bss->pub.transmitted_bss,
+ struct cfg80211_internal_bss, pub);
+ atomic_inc(&bss->hold);
+ }
}
static inline void cfg80211_unhold_bss(struct cfg80211_internal_bss *bss)
{
int r = atomic_dec_return(&bss->hold);
WARN_ON(r < 0);
+ if (bss->pub.transmitted_bss) {
+ bss = container_of(bss->pub.transmitted_bss,
+ struct cfg80211_internal_bss, pub);
+ r = atomic_dec_return(&bss->hold);
+ WARN_ON(r < 0);
+ }
}
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 04c4fd3..18bb660 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -241,6 +241,8 @@ static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
[NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
[NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
+ [NL80211_ATTR_WIPHY_EDMG_CHANNELS] = { .type = NLA_U8 },
+ [NL80211_ATTR_WIPHY_EDMG_BW_CONFIG] = { .type = NLA_U8 },
[NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
[NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
[NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
@@ -537,7 +539,8 @@ nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
/* policy for GTK rekey offload attributes */
static const struct nla_policy
nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
- [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
+ [NL80211_REKEY_DATA_KEK] = { .type = NLA_BINARY,
+ .len = FILS_MAX_KEK_LEN },
[NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
[NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
};
@@ -858,7 +861,7 @@ struct key_parse {
struct key_params p;
int idx;
int type;
- bool def, defmgmt;
+ bool def, defmgmt, defbeacon;
bool def_uni, def_multi;
};
@@ -873,12 +876,13 @@ static int nl80211_parse_key_new(struct genl_info *info, struct nlattr *key,
k->def = !!tb[NL80211_KEY_DEFAULT];
k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
+ k->defbeacon = !!tb[NL80211_KEY_DEFAULT_BEACON];
if (k->def) {
k->def_uni = true;
k->def_multi = true;
}
- if (k->defmgmt)
+ if (k->defmgmt || k->defbeacon)
k->def_multi = true;
if (tb[NL80211_KEY_IDX])
@@ -990,14 +994,17 @@ static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
if (err)
return err;
- if (k->def && k->defmgmt) {
- GENL_SET_ERR_MSG(info, "key with def && defmgmt is invalid");
+ if ((k->def ? 1 : 0) + (k->defmgmt ? 1 : 0) +
+ (k->defbeacon ? 1 : 0) > 1) {
+ GENL_SET_ERR_MSG(info,
+ "key with multiple default flags is invalid");
return -EINVAL;
}
- if (k->defmgmt) {
+ if (k->defmgmt || k->defbeacon) {
if (k->def_uni || !k->def_multi) {
- GENL_SET_ERR_MSG(info, "defmgmt key must be mcast");
+ GENL_SET_ERR_MSG(info,
+ "defmgmt/defbeacon key must be mcast");
return -EINVAL;
}
}
@@ -1009,14 +1016,20 @@ static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
"defmgmt key idx not 4 or 5");
return -EINVAL;
}
+ } else if (k->defbeacon) {
+ if (k->idx < 6 || k->idx > 7) {
+ GENL_SET_ERR_MSG(info,
+ "defbeacon key idx not 6 or 7");
+ return -EINVAL;
+ }
} else if (k->def) {
if (k->idx < 0 || k->idx > 3) {
GENL_SET_ERR_MSG(info, "def key idx not 0-3");
return -EINVAL;
}
} else {
- if (k->idx < 0 || k->idx > 5) {
- GENL_SET_ERR_MSG(info, "key idx not 0-5");
+ if (k->idx < 0 || k->idx > 7) {
+ GENL_SET_ERR_MSG(info, "key idx not 0-7");
return -EINVAL;
}
}
@@ -1448,6 +1461,15 @@ static int nl80211_send_band_rateinfo(struct sk_buff *msg,
nla_nest_end(msg, nl_iftype_data);
}
+ /* add EDMG info */
+ if (sband->edmg_cap.channels &&
+ (nla_put_u8(msg, NL80211_BAND_ATTR_EDMG_CHANNELS,
+ sband->edmg_cap.channels) ||
+ nla_put_u8(msg, NL80211_BAND_ATTR_EDMG_BW_CONFIG,
+ sband->edmg_cap.bw_config)))
+
+ return -ENOBUFS;
+
/* add bitrates */
nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
if (!nl_rates)
@@ -1624,6 +1646,46 @@ static int nl80211_add_commands_unsplit(struct cfg80211_registered_device *rdev,
return -ENOBUFS;
}
+static int
+nl80211_put_iftype_akm_suites(struct cfg80211_registered_device *rdev,
+ struct sk_buff *msg)
+{
+ int i;
+ struct nlattr *nested, *nested_akms;
+ const struct wiphy_iftype_akm_suites *iftype_akms;
+
+ if (!rdev->wiphy.num_iftype_akm_suites ||
+ !rdev->wiphy.iftype_akm_suites)
+ return 0;
+
+ nested = nla_nest_start(msg, NL80211_ATTR_IFTYPE_AKM_SUITES);
+ if (!nested)
+ return -ENOBUFS;
+
+ for (i = 0; i < rdev->wiphy.num_iftype_akm_suites; i++) {
+ nested_akms = nla_nest_start(msg, i + 1);
+ if (!nested_akms)
+ return -ENOBUFS;
+
+ iftype_akms = &rdev->wiphy.iftype_akm_suites[i];
+
+ if (nl80211_put_iftypes(msg, NL80211_IFTYPE_AKM_ATTR_IFTYPES,
+ iftype_akms->iftypes_mask))
+ return -ENOBUFS;
+
+ if (nla_put(msg, NL80211_IFTYPE_AKM_ATTR_SUITES,
+ sizeof(u32) * iftype_akms->n_akm_suites,
+ iftype_akms->akm_suites)) {
+ return -ENOBUFS;
+ }
+ nla_nest_end(msg, nested_akms);
+ }
+
+ nla_nest_end(msg, nested);
+
+ return 0;
+}
+
struct nl80211_dump_wiphy_state {
s64 filter_wiphy;
long start;
@@ -2130,6 +2192,9 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
goto nla_put_failure;
}
+ if (nl80211_put_iftype_akm_suites(rdev, msg))
+ goto nla_put_failure;
+
/* done */
state->split_start = 0;
break;
@@ -2391,6 +2456,18 @@ static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
info->attrs[NL80211_ATTR_CENTER_FREQ2]);
}
+ if (info->attrs[NL80211_ATTR_WIPHY_EDMG_CHANNELS]) {
+ chandef->edmg.channels =
+ nla_get_u8(info->attrs[NL80211_ATTR_WIPHY_EDMG_CHANNELS]);
+
+ if (info->attrs[NL80211_ATTR_WIPHY_EDMG_BW_CONFIG])
+ chandef->edmg.bw_config =
+ nla_get_u8(info->attrs[NL80211_ATTR_WIPHY_EDMG_BW_CONFIG]);
+ } else {
+ chandef->edmg.bw_config = 0;
+ chandef->edmg.channels = 0;
+ }
+
if (!cfg80211_chandef_valid(chandef))
return -EINVAL;
@@ -3429,8 +3506,14 @@ static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
void *hdr;
struct sk_buff *msg;
- if (info->attrs[NL80211_ATTR_KEY_IDX])
+ if (info->attrs[NL80211_ATTR_KEY_IDX]) {
key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
+ if (key_idx > 5 &&
+ !wiphy_ext_feature_isset(
+ &rdev->wiphy,
+ NL80211_EXT_FEATURE_BEACON_PROTECTION))
+ return -EINVAL;
+ }
if (key_idx > 5)
return -EINVAL;
@@ -3509,7 +3592,7 @@ static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
return -EINVAL;
/* only support setting default key */
- if (!key.def && !key.defmgmt)
+ if (!key.def && !key.defmgmt && !key.defbeacon)
return -EINVAL;
wdev_lock(dev->ieee80211_ptr);
@@ -3533,7 +3616,7 @@ static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
#ifdef CONFIG_CFG80211_WEXT
dev->ieee80211_ptr->wext.default_key = key.idx;
#endif
- } else {
+ } else if (key.defmgmt) {
if (key.def_uni || !key.def_multi) {
err = -EINVAL;
goto out;
@@ -3555,6 +3638,24 @@ static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
#ifdef CONFIG_CFG80211_WEXT
dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
#endif
+ } else if (key.defbeacon) {
+ if (key.def_uni || !key.def_multi) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ if (!rdev->ops->set_default_beacon_key) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ err = nl80211_key_allowed(dev->ieee80211_ptr);
+ if (err)
+ goto out;
+
+ err = rdev_set_default_beacon_key(rdev, dev, key.idx);
+ if (err)
+ goto out;
}
out:
@@ -4398,6 +4499,9 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
nl80211_calculate_ap_params(¶ms);
+ if (info->attrs[NL80211_ATTR_EXTERNAL_AUTH_SUPPORT])
+ params.flags |= AP_SETTINGS_EXTERNAL_AUTH_SUPPORT;
+
wdev_lock(wdev);
err = rdev_start_ap(rdev, dev, ¶ms);
if (!err) {
@@ -4784,6 +4888,8 @@ static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
PUT_SINFO_U64(BEACON_RX, rx_beacon);
PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
PUT_SINFO(ACK_SIGNAL, ack_signal, u8);
+ PUT_SINFO(RX_MPDUS, rx_mpdu_count, u32);
+ PUT_SINFO(FCS_ERROR_COUNT, fcs_err_count, u32);
if (wiphy_ext_feature_isset(&rdev->wiphy,
NL80211_EXT_FEATURE_DATA_ACK_SIGNAL_SUPPORT))
PUT_SINFO(DATA_ACK_SIGNAL_AVG, avg_ack_signal, s8);
@@ -9456,6 +9562,15 @@ static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
return -EINVAL;
}
+ if (info->attrs[NL80211_ATTR_WIPHY_EDMG_CHANNELS]) {
+ connect.edmg.channels =
+ nla_get_u8(info->attrs[NL80211_ATTR_WIPHY_EDMG_CHANNELS]);
+
+ if (info->attrs[NL80211_ATTR_WIPHY_EDMG_BW_CONFIG])
+ connect.edmg.bw_config =
+ nla_get_u8(info->attrs[NL80211_ATTR_WIPHY_EDMG_BW_CONFIG]);
+ }
+
if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
connkeys = nl80211_parse_connkeys(rdev, info, NULL);
if (IS_ERR(connkeys))
@@ -11518,15 +11633,27 @@ static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
if (!tb[NL80211_REKEY_DATA_REPLAY_CTR] || !tb[NL80211_REKEY_DATA_KEK] ||
!tb[NL80211_REKEY_DATA_KCK])
return -EINVAL;
+ if (!tb[NL80211_REKEY_DATA_KEK] || !tb[NL80211_REKEY_DATA_REPLAY_CTR] ||
+ (!wiphy_ext_feature_isset(&rdev->wiphy,
+ NL80211_EXT_FEATURE_FILS_SK_OFFLOAD) &&
+ !wiphy_ext_feature_isset(&rdev->wiphy,
+ NL80211_EXT_FEATURE_FILS_STA) &&
+ !tb[NL80211_REKEY_DATA_KCK]))
+ return -EINVAL;
+
if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
return -ERANGE;
- if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
+ if (nla_len(tb[NL80211_REKEY_DATA_KEK]) < NL80211_KEK_LEN)
return -ERANGE;
- if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
+ if (tb[NL80211_REKEY_DATA_KCK] &&
+ nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
return -ERANGE;
+ memset(&rekey_data, 0, sizeof(rekey_data));
rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
- rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
+ rekey_data.kek_len = nla_len(tb[NL80211_REKEY_DATA_KEK]);
+ if (tb[NL80211_REKEY_DATA_KCK])
+ rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
wdev_lock(wdev);
@@ -12977,7 +13104,9 @@ static int nl80211_external_auth(struct sk_buff *skb, struct genl_info *info)
if (!rdev->ops->external_auth)
return -EOPNOTSUPP;
- if (!info->attrs[NL80211_ATTR_SSID])
+ if (!info->attrs[NL80211_ATTR_SSID] &&
+ dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
+ dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
return -EINVAL;
if (!info->attrs[NL80211_ATTR_BSSID])
@@ -12988,18 +13117,24 @@ static int nl80211_external_auth(struct sk_buff *skb, struct genl_info *info)
memset(¶ms, 0, sizeof(params));
- params.ssid.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
- if (params.ssid.ssid_len == 0 ||
- params.ssid.ssid_len > IEEE80211_MAX_SSID_LEN)
- return -EINVAL;
- memcpy(params.ssid.ssid, nla_data(info->attrs[NL80211_ATTR_SSID]),
- params.ssid.ssid_len);
+ if (info->attrs[NL80211_ATTR_SSID]) {
+ params.ssid.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
+ if (params.ssid.ssid_len == 0 ||
+ params.ssid.ssid_len > IEEE80211_MAX_SSID_LEN)
+ return -EINVAL;
+ memcpy(params.ssid.ssid,
+ nla_data(info->attrs[NL80211_ATTR_SSID]),
+ params.ssid.ssid_len);
+ }
memcpy(params.bssid, nla_data(info->attrs[NL80211_ATTR_BSSID]),
ETH_ALEN);
params.status = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
+ if (info->attrs[NL80211_ATTR_PMKID])
+ params.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
+
return rdev_external_auth(rdev, dev, ¶ms);
}
@@ -13065,6 +13200,31 @@ static int nl80211_tx_control_port(struct sk_buff *skb, struct genl_info *info)
return err;
}
+static int nl80211_update_owe_info(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct cfg80211_update_owe_info owe_info;
+ struct net_device *dev = info->user_ptr[1];
+
+ if (!rdev->ops->update_owe_info)
+ return -EOPNOTSUPP;
+
+ if (!info->attrs[NL80211_ATTR_STATUS_CODE] ||
+ !info->attrs[NL80211_ATTR_MAC])
+ return -EINVAL;
+
+ memset(&owe_info, 0, sizeof(owe_info));
+ owe_info.status = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
+ nla_memcpy(owe_info.peer, info->attrs[NL80211_ATTR_MAC], ETH_ALEN);
+
+ if (info->attrs[NL80211_ATTR_IE]) {
+ owe_info.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
+ owe_info.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
+ }
+
+ return rdev_update_owe_info(rdev, dev, &owe_info);
+}
+
#define NL80211_FLAG_NEED_WIPHY 0x01
#define NL80211_FLAG_NEED_NETDEV 0x02
#define NL80211_FLAG_NEED_RTNL 0x04
@@ -13982,6 +14142,13 @@ static const struct genl_ops nl80211_ops[] = {
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
NL80211_FLAG_NEED_RTNL,
},
+ {
+ .cmd = NL80211_CMD_UPDATE_OWE_INFO,
+ .doit = nl80211_update_owe_info,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
+ NL80211_FLAG_NEED_RTNL,
+ },
};
static struct genl_family nl80211_fam __ro_after_init = {
@@ -16080,6 +16247,16 @@ void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
}
EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
+void cfg80211_ap_stopped(struct net_device *netdev, gfp_t gfp)
+{
+ struct wireless_dev *wdev = netdev->ieee80211_ptr;
+ struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
+
+ nl80211_send_mlme_event(rdev, netdev, NULL, 0,
+ NL80211_CMD_STOP_AP, gfp, -1);
+}
+EXPORT_SYMBOL(cfg80211_ap_stopped);
+
void nl80211_send_ap_stopped(struct wireless_dev *wdev)
{
struct wiphy *wiphy = wdev->wiphy;
@@ -16151,6 +16328,46 @@ int cfg80211_external_auth_request(struct net_device *dev,
}
EXPORT_SYMBOL(cfg80211_external_auth_request);
+void cfg80211_update_owe_info_event(struct net_device *netdev,
+ struct cfg80211_update_owe_info *owe_info,
+ gfp_t gfp)
+{
+ struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
+ struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
+ struct sk_buff *msg;
+ void *hdr;
+
+ trace_cfg80211_update_owe_info_event(wiphy, netdev, owe_info);
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
+ if (!msg)
+ return;
+
+ hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_UPDATE_OWE_INFO);
+ if (!hdr)
+ goto nla_put_failure;
+
+ if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
+ nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
+ nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, owe_info->peer))
+ goto nla_put_failure;
+
+ if (!owe_info->ie_len ||
+ nla_put(msg, NL80211_ATTR_IE, owe_info->ie_len, owe_info->ie))
+ goto nla_put_failure;
+
+ genlmsg_end(msg, hdr);
+
+ genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
+ NL80211_MCGRP_MLME, gfp);
+ return;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ nlmsg_free(msg);
+}
+EXPORT_SYMBOL(cfg80211_update_owe_info_event);
+
/* initialisation/exit functions */
int __init nl80211_init(void)
diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h
index a8c58ae..7cfaab1 100644
--- a/net/wireless/rdev-ops.h
+++ b/net/wireless/rdev-ops.h
@@ -135,6 +135,19 @@ rdev_set_default_mgmt_key(struct cfg80211_registered_device *rdev,
return ret;
}
+static inline int
+rdev_set_default_beacon_key(struct cfg80211_registered_device *rdev,
+ struct net_device *netdev, u8 key_index)
+{
+ int ret;
+
+ trace_rdev_set_default_beacon_key(&rdev->wiphy, netdev, key_index);
+ ret = rdev->ops->set_default_beacon_key(&rdev->wiphy, netdev,
+ key_index);
+ trace_rdev_return_int(&rdev->wiphy, ret);
+ return ret;
+}
+
static inline int rdev_start_ap(struct cfg80211_registered_device *rdev,
struct net_device *dev,
struct cfg80211_ap_settings *settings)
@@ -1246,4 +1259,17 @@ rdev_external_auth(struct cfg80211_registered_device *rdev,
return ret;
}
+static inline int rdev_update_owe_info(struct cfg80211_registered_device *rdev,
+ struct net_device *dev,
+ struct cfg80211_update_owe_info *oweinfo)
+{
+ int ret = -EOPNOTSUPP;
+
+ trace_rdev_update_owe_info(&rdev->wiphy, dev, oweinfo);
+ if (rdev->ops->update_owe_info)
+ ret = rdev->ops->update_owe_info(&rdev->wiphy, dev, oweinfo);
+ trace_rdev_return_int(&rdev->wiphy, ret);
+ return ret;
+}
+
#endif /* __CFG80211_RDEV_OPS */
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index d871349..fe4c054 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -5,6 +5,7 @@
* Copyright 2008 Johannes Berg <johannes@sipsolutions.net>
* Copyright 2013-2014 Intel Mobile Communications GmbH
* Copyright 2016 Intel Deutschland GmbH
+ * Copyright (C) 2018-2019 Intel Corporation
*/
#include <linux/kernel.h>
#include <linux/slab.h>
@@ -109,6 +110,12 @@ static inline void bss_ref_get(struct cfg80211_registered_device *rdev,
pub);
bss->refcount++;
}
+ if (bss->pub.transmitted_bss) {
+ bss = container_of(bss->pub.transmitted_bss,
+ struct cfg80211_internal_bss,
+ pub);
+ bss->refcount++;
+ }
}
static inline void bss_ref_put(struct cfg80211_registered_device *rdev,
@@ -125,6 +132,18 @@ static inline void bss_ref_put(struct cfg80211_registered_device *rdev,
if (hbss->refcount == 0)
bss_free(hbss);
}
+
+ if (bss->pub.transmitted_bss) {
+ struct cfg80211_internal_bss *tbss;
+
+ tbss = container_of(bss->pub.transmitted_bss,
+ struct cfg80211_internal_bss,
+ pub);
+ tbss->refcount--;
+ if (tbss->refcount == 0)
+ bss_free(tbss);
+ }
+
bss->refcount--;
if (bss->refcount == 0)
bss_free(bss);
@@ -150,6 +169,7 @@ static bool __cfg80211_unlink_bss(struct cfg80211_registered_device *rdev,
}
list_del_init(&bss->list);
+ list_del_init(&bss->pub.nontrans_list);
rb_erase(&bss->rbn, &rdev->bss_tree);
rdev->bss_entries--;
WARN_ONCE((rdev->bss_entries == 0) ^ list_empty(&rdev->bss_list),
@@ -159,6 +179,156 @@ static bool __cfg80211_unlink_bss(struct cfg80211_registered_device *rdev,
return true;
}
+static size_t cfg80211_gen_new_ie(const u8 *ie, size_t ielen,
+ const u8 *subelement, size_t subie_len,
+ u8 *new_ie, gfp_t gfp)
+{
+ u8 *pos, *tmp;
+ const u8 *tmp_old, *tmp_new;
+ u8 *sub_copy;
+
+ /* copy subelement as we need to change its content to
+ * mark an ie after it is processed.
+ */
+ sub_copy = kmalloc(subie_len, gfp);
+ if (!sub_copy)
+ return 0;
+ memcpy(sub_copy, subelement, subie_len);
+
+ pos = &new_ie[0];
+
+ /* set new ssid */
+ tmp_new = cfg80211_find_ie(WLAN_EID_SSID, sub_copy, subie_len);
+ if (tmp_new) {
+ memcpy(pos, tmp_new, tmp_new[1] + 2);
+ pos += (tmp_new[1] + 2);
+ }
+
+ /* go through IEs in ie (skip SSID) and subelement,
+ * merge them into new_ie
+ */
+ tmp_old = cfg80211_find_ie(WLAN_EID_SSID, ie, ielen);
+ tmp_old = (tmp_old) ? tmp_old + tmp_old[1] + 2 : ie;
+
+ while (tmp_old + tmp_old[1] + 2 - ie <= ielen) {
+ if (tmp_old[0] == 0) {
+ tmp_old++;
+ continue;
+ }
+
+ tmp = (u8 *)cfg80211_find_ie(tmp_old[0], sub_copy, subie_len);
+ if (!tmp) {
+ /* ie in old ie but not in subelement */
+ if (tmp_old[0] != WLAN_EID_MULTIPLE_BSSID) {
+ memcpy(pos, tmp_old, tmp_old[1] + 2);
+ pos += tmp_old[1] + 2;
+ }
+ } else {
+ /* ie in transmitting ie also in subelement,
+ * copy from subelement and flag the ie in subelement
+ * as copied (by setting eid field to 0xff). For
+ * vendor ie, compare OUI + type + subType to
+ * determine if they are the same ie.
+ */
+ if (tmp_old[0] == WLAN_EID_VENDOR_SPECIFIC) {
+ if (!memcmp(tmp_old + 2, tmp + 2, 5)) {
+ /* same vendor ie, copy from
+ * subelement
+ */
+ memcpy(pos, tmp, tmp[1] + 2);
+ pos += tmp[1] + 2;
+ tmp[0] = 0xff;
+ } else {
+ memcpy(pos, tmp_old, tmp_old[1] + 2);
+ pos += tmp_old[1] + 2;
+ }
+ } else {
+ /* copy ie from subelement into new ie */
+ memcpy(pos, tmp, tmp[1] + 2);
+ pos += tmp[1] + 2;
+ tmp[0] = 0xff;
+ }
+ }
+
+ if (tmp_old + tmp_old[1] + 2 - ie == ielen)
+ break;
+
+ tmp_old += tmp_old[1] + 2;
+ }
+
+ /* go through subelement again to check if there is any ie not
+ * copied to new ie, skip ssid, capability, bssid-index ie
+ */
+ tmp_new = sub_copy;
+ while (tmp_new + tmp_new[1] + 2 - sub_copy <= subie_len) {
+ if (!(tmp_new[0] == WLAN_EID_NON_TX_BSSID_CAP ||
+ tmp_new[0] == WLAN_EID_SSID ||
+ tmp_new[0] == WLAN_EID_MULTI_BSSID_IDX ||
+ tmp_new[0] == 0xff)) {
+ memcpy(pos, tmp_new, tmp_new[1] + 2);
+ pos += tmp_new[1] + 2;
+ }
+ if (tmp_new + tmp_new[1] + 2 - sub_copy == subie_len)
+ break;
+ tmp_new += tmp_new[1] + 2;
+ }
+
+ kfree(sub_copy);
+ return pos - new_ie;
+}
+
+static bool is_bss(struct cfg80211_bss *a, const u8 *bssid,
+ const u8 *ssid, size_t ssid_len)
+{
+ const struct cfg80211_bss_ies *ies;
+ const u8 *ssidie;
+
+ if (bssid && !ether_addr_equal(a->bssid, bssid))
+ return false;
+
+ if (!ssid)
+ return true;
+
+ ies = rcu_access_pointer(a->ies);
+ if (!ies)
+ return false;
+ ssidie = cfg80211_find_ie(WLAN_EID_SSID, ies->data, ies->len);
+ if (!ssidie)
+ return false;
+ if (ssidie[1] != ssid_len)
+ return false;
+ return memcmp(ssidie + 2, ssid, ssid_len) == 0;
+}
+
+static int
+cfg80211_add_nontrans_list(struct cfg80211_bss *trans_bss,
+ struct cfg80211_bss *nontrans_bss)
+{
+ const u8 *ssid;
+ size_t ssid_len;
+ struct cfg80211_bss *bss = NULL;
+
+ rcu_read_lock();
+ ssid = ieee80211_bss_get_ie(nontrans_bss, WLAN_EID_SSID);
+ if (!ssid) {
+ rcu_read_unlock();
+ return -EINVAL;
+ }
+ ssid_len = ssid[1];
+ ssid = ssid + 2;
+ rcu_read_unlock();
+
+ /* check if nontrans_bss is in the list */
+ list_for_each_entry(bss, &trans_bss->nontrans_list, nontrans_list) {
+ if (is_bss(bss, nontrans_bss->bssid, ssid, ssid_len))
+ return 0;
+ }
+
+ /* add to the list */
+ list_add_tail(&nontrans_bss->nontrans_list, &trans_bss->nontrans_list);
+ return 0;
+}
+
static void __cfg80211_bss_expire(struct cfg80211_registered_device *rdev,
unsigned long expire_time)
{
@@ -523,29 +693,6 @@ const u8 *cfg80211_find_vendor_ie(unsigned int oui, int oui_type,
}
EXPORT_SYMBOL(cfg80211_find_vendor_ie);
-static bool is_bss(struct cfg80211_bss *a, const u8 *bssid,
- const u8 *ssid, size_t ssid_len)
-{
- const struct cfg80211_bss_ies *ies;
- const u8 *ssidie;
-
- if (bssid && !ether_addr_equal(a->bssid, bssid))
- return false;
-
- if (!ssid)
- return true;
-
- ies = rcu_access_pointer(a->ies);
- if (!ies)
- return false;
- ssidie = cfg80211_find_ie(WLAN_EID_SSID, ies->data, ies->len);
- if (!ssidie)
- return false;
- if (ssidie[1] != ssid_len)
- return false;
- return memcmp(ssidie + 2, ssid, ssid_len) == 0;
-}
-
/**
* enum bss_compare_mode - BSS compare mode
* @BSS_CMP_REGULAR: regular compare mode (for insertion and normal find)
@@ -880,6 +1027,12 @@ static bool cfg80211_combine_bsses(struct cfg80211_registered_device *rdev,
return true;
}
+struct cfg80211_non_tx_bss {
+ struct cfg80211_bss *tx_bss;
+ u8 max_bssid_indicator;
+ u8 bssid_index;
+};
+
/* Returned bss is reference counted and must be cleaned up appropriately. */
static struct cfg80211_internal_bss *
cfg80211_bss_update(struct cfg80211_registered_device *rdev,
@@ -983,6 +1136,8 @@ cfg80211_bss_update(struct cfg80211_registered_device *rdev,
memcpy(found->pub.chain_signal, tmp->pub.chain_signal,
IEEE80211_MAX_CHAINS);
ether_addr_copy(found->parent_bssid, tmp->parent_bssid);
+ found->pub.max_bssid_indicator = tmp->pub.max_bssid_indicator;
+ found->pub.bssid_index = tmp->pub.bssid_index;
} else {
struct cfg80211_internal_bss *new;
struct cfg80211_internal_bss *hidden;
@@ -1007,6 +1162,7 @@ cfg80211_bss_update(struct cfg80211_registered_device *rdev,
memcpy(new, tmp, sizeof(*new));
new->refcount = 1;
INIT_LIST_HEAD(&new->hidden_list);
+ INIT_LIST_HEAD(&new->pub.nontrans_list);
if (rcu_access_pointer(tmp->pub.proberesp_ies)) {
hidden = rb_find_bss(rdev, tmp, BSS_CMP_HIDE_ZLEN);
@@ -1040,6 +1196,17 @@ cfg80211_bss_update(struct cfg80211_registered_device *rdev,
goto drop;
}
+ /* This must be before the call to bss_ref_get */
+ if (tmp->pub.transmitted_bss) {
+ struct cfg80211_internal_bss *pbss =
+ container_of(tmp->pub.transmitted_bss,
+ struct cfg80211_internal_bss,
+ pub);
+
+ new->pub.transmitted_bss = tmp->pub.transmitted_bss;
+ bss_ref_get(rdev, pbss);
+ }
+
list_add_tail(&new->list, &rdev->bss_list);
rdev->bss_entries++;
rb_insert_bss(rdev, new);
@@ -1128,14 +1295,16 @@ cfg80211_get_bss_channel(struct wiphy *wiphy, const u8 *ie, size_t ielen,
}
/* Returned bss is reference counted and must be cleaned up appropriately. */
-struct cfg80211_bss *
-cfg80211_inform_bss_data(struct wiphy *wiphy,
- struct cfg80211_inform_bss *data,
- enum cfg80211_bss_frame_type ftype,
- const u8 *bssid, u64 tsf, u16 capability,
- u16 beacon_interval, const u8 *ie, size_t ielen,
- gfp_t gfp)
+static struct cfg80211_bss *
+cfg80211_inform_single_bss_data(struct wiphy *wiphy,
+ struct cfg80211_inform_bss *data,
+ enum cfg80211_bss_frame_type ftype,
+ const u8 *bssid, u64 tsf, u16 capability,
+ u16 beacon_interval, const u8 *ie, size_t ielen,
+ struct cfg80211_non_tx_bss *non_tx_data,
+ gfp_t gfp)
{
+ struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
struct cfg80211_bss_ies *ies;
struct ieee80211_channel *channel;
struct cfg80211_internal_bss tmp = {}, *res;
@@ -1161,6 +1330,11 @@ cfg80211_inform_bss_data(struct wiphy *wiphy,
tmp.pub.beacon_interval = beacon_interval;
tmp.pub.capability = capability;
tmp.ts_boottime = data->boottime_ns;
+ if (non_tx_data) {
+ tmp.pub.transmitted_bss = non_tx_data->tx_bss;
+ tmp.pub.bssid_index = non_tx_data->bssid_index;
+ tmp.pub.max_bssid_indicator = non_tx_data->max_bssid_indicator;
+ }
/*
* If we do not know here whether the IEs are from a Beacon or Probe
@@ -1207,19 +1381,251 @@ cfg80211_inform_bss_data(struct wiphy *wiphy,
regulatory_hint_found_beacon(wiphy, channel, gfp);
}
+ if (non_tx_data && non_tx_data->tx_bss) {
+ /* this is a nontransmitting bss, we need to add it to
+ * transmitting bss' list if it is not there
+ */
+ if (cfg80211_add_nontrans_list(non_tx_data->tx_bss,
+ &res->pub)) {
+ if (__cfg80211_unlink_bss(rdev, res))
+ rdev->bss_generation++;
+ }
+ }
+
trace_cfg80211_return_bss(&res->pub);
/* cfg80211_bss_update gives us a referenced result */
return &res->pub;
}
+
+static void cfg80211_parse_mbssid_data(struct wiphy *wiphy,
+ struct cfg80211_inform_bss *data,
+ enum cfg80211_bss_frame_type ftype,
+ const u8 *bssid, u64 tsf,
+ u16 beacon_interval, const u8 *ie,
+ size_t ielen,
+ struct cfg80211_non_tx_bss *non_tx_data,
+ gfp_t gfp)
+{
+ const u8 *mbssid_index_ie;
+ const struct element *elem, *sub;
+ size_t new_ie_len;
+ u8 new_bssid[ETH_ALEN];
+ u8 *new_ie;
+ u16 capability;
+ struct cfg80211_bss *bss;
+
+ if (!non_tx_data)
+ return;
+ if (!cfg80211_find_ie(WLAN_EID_MULTIPLE_BSSID, ie, ielen))
+ return;
+ if (!wiphy->support_mbssid)
+ return;
+ if (wiphy->support_only_he_mbssid &&
+ !cfg80211_find_ext_ie(WLAN_EID_EXT_HE_CAPABILITY, ie, ielen))
+ return;
+
+ new_ie = kmalloc(IEEE80211_MAX_DATA_LEN, gfp);
+ if (!new_ie)
+ return;
+
+ for_each_element_id(elem, WLAN_EID_MULTIPLE_BSSID, ie, ielen) {
+ if (elem->datalen < 4)
+ continue;
+ for_each_element(sub, elem->data + 1, elem->datalen - 1) {
+ if (sub->id != 0 || sub->datalen < 4) {
+ /* not a valid BSS profile */
+ continue;
+ }
+
+ if (sub->data[0] != WLAN_EID_NON_TX_BSSID_CAP ||
+ sub->data[1] != 2) {
+ /* The first element within the Nontransmitted
+ * BSSID Profile is not the Nontransmitted
+ * BSSID Capability element.
+ */
+ continue;
+ }
+
+ /* found a Nontransmitted BSSID Profile */
+ mbssid_index_ie = cfg80211_find_ie
+ (WLAN_EID_MULTI_BSSID_IDX,
+ sub->data, sub->datalen);
+ if (!mbssid_index_ie || mbssid_index_ie[1] < 1 ||
+ mbssid_index_ie[2] == 0) {
+ /* No valid Multiple BSSID-Index element */
+ continue;
+ }
+
+ non_tx_data->bssid_index = mbssid_index_ie[2];
+ non_tx_data->max_bssid_indicator = elem->data[0];
+
+ cfg80211_gen_new_bssid(bssid,
+ non_tx_data->max_bssid_indicator,
+ non_tx_data->bssid_index,
+ new_bssid);
+ memset(new_ie, 0, IEEE80211_MAX_DATA_LEN);
+ new_ie_len = cfg80211_gen_new_ie(ie, ielen, sub->data,
+ sub->datalen, new_ie,
+ gfp);
+ if (!new_ie_len)
+ continue;
+
+ capability = get_unaligned_le16(sub->data + 2);
+ bss = cfg80211_inform_single_bss_data(wiphy, data,
+ ftype,
+ new_bssid, tsf,
+ capability,
+ beacon_interval,
+ new_ie,
+ new_ie_len,
+ non_tx_data,
+ gfp);
+ if (!bss)
+ break;
+ cfg80211_put_bss(wiphy, bss);
+ }
+ }
+
+ kfree(new_ie);
+}
+
+struct cfg80211_bss *
+cfg80211_inform_bss_data(struct wiphy *wiphy,
+ struct cfg80211_inform_bss *data,
+ enum cfg80211_bss_frame_type ftype,
+ const u8 *bssid, u64 tsf, u16 capability,
+ u16 beacon_interval, const u8 *ie, size_t ielen,
+ gfp_t gfp)
+{
+ struct cfg80211_bss *res;
+ struct cfg80211_non_tx_bss non_tx_data;
+
+ res = cfg80211_inform_single_bss_data(wiphy, data, ftype, bssid, tsf,
+ capability, beacon_interval, ie,
+ ielen, NULL, gfp);
+ non_tx_data.tx_bss = res;
+ cfg80211_parse_mbssid_data(wiphy, data, ftype, bssid, tsf,
+ beacon_interval, ie, ielen, &non_tx_data,
+ gfp);
+ return res;
+}
EXPORT_SYMBOL(cfg80211_inform_bss_data);
-/* cfg80211_inform_bss_width_frame helper */
-struct cfg80211_bss *
-cfg80211_inform_bss_frame_data(struct wiphy *wiphy,
- struct cfg80211_inform_bss *data,
- struct ieee80211_mgmt *mgmt, size_t len,
- gfp_t gfp)
+static void
+cfg80211_parse_mbssid_frame_data(struct wiphy *wiphy,
+ struct cfg80211_inform_bss *data,
+ struct ieee80211_mgmt *mgmt, size_t len,
+ struct cfg80211_non_tx_bss *non_tx_data,
+ gfp_t gfp)
+{
+ enum cfg80211_bss_frame_type ftype;
+ const u8 *ie = mgmt->u.probe_resp.variable;
+ size_t ielen = len - offsetof(struct ieee80211_mgmt,
+ u.probe_resp.variable);
+ ftype = ieee80211_is_beacon(mgmt->frame_control) ?
+ CFG80211_BSS_FTYPE_BEACON : CFG80211_BSS_FTYPE_PRESP;
+
+ cfg80211_parse_mbssid_data(wiphy, data, ftype, mgmt->bssid,
+ le64_to_cpu(mgmt->u.probe_resp.timestamp),
+ le16_to_cpu(mgmt->u.probe_resp.beacon_int),
+ ie, ielen, non_tx_data, gfp);
+}
+
+static void
+cfg80211_update_notlisted_nontrans(struct wiphy *wiphy,
+ struct cfg80211_bss *nontrans_bss,
+ struct ieee80211_mgmt *mgmt, size_t len,
+ gfp_t gfp)
+{
+ u8 *ie, *new_ie, *pos;
+ const u8 *nontrans_ssid, *trans_ssid, *mbssid;
+ size_t ielen = len - offsetof(struct ieee80211_mgmt,
+ u.probe_resp.variable);
+ size_t new_ie_len;
+ struct cfg80211_bss_ies *new_ies;
+ const struct cfg80211_bss_ies *old;
+ u8 cpy_len;
+
+ ie = mgmt->u.probe_resp.variable;
+
+ new_ie_len = ielen;
+ trans_ssid = cfg80211_find_ie(WLAN_EID_SSID, ie, ielen);
+ if (!trans_ssid)
+ return;
+ new_ie_len -= trans_ssid[1];
+ mbssid = cfg80211_find_ie(WLAN_EID_MULTIPLE_BSSID, ie, ielen);
+ /*
+ * It's not valid to have the MBSSID element before SSID
+ * ignore if that happens - the code below assumes it is
+ * after (while copying things inbetween).
+ */
+ if (!mbssid || mbssid < trans_ssid)
+ return;
+ new_ie_len -= mbssid[1];
+ rcu_read_lock();
+ nontrans_ssid = ieee80211_bss_get_ie(nontrans_bss, WLAN_EID_SSID);
+ if (!nontrans_ssid) {
+ rcu_read_unlock();
+ return;
+ }
+ new_ie_len += nontrans_ssid[1];
+ rcu_read_unlock();
+
+ /* generate new ie for nontrans BSS
+ * 1. replace SSID with nontrans BSS' SSID
+ * 2. skip MBSSID IE
+ */
+ new_ie = kzalloc(new_ie_len, gfp);
+ if (!new_ie)
+ return;
+ new_ies = kzalloc(sizeof(*new_ies) + new_ie_len, gfp);
+ if (!new_ies) {
+ kfree(new_ie);
+ return;
+ }
+
+ pos = new_ie;
+
+ /* copy the nontransmitted SSID */
+ cpy_len = nontrans_ssid[1] + 2;
+ memcpy(pos, nontrans_ssid, cpy_len);
+ pos += cpy_len;
+ /* copy the IEs between SSID and MBSSID */
+ cpy_len = trans_ssid[1] + 2;
+ memcpy(pos, (trans_ssid + cpy_len), (mbssid - (trans_ssid + cpy_len)));
+ pos += (mbssid - (trans_ssid + cpy_len));
+ /* copy the IEs after MBSSID */
+ cpy_len = mbssid[1] + 2;
+ memcpy(pos, mbssid + cpy_len, ((ie + ielen) - (mbssid + cpy_len)));
+
+ /* update ie */
+ new_ies->len = new_ie_len;
+ new_ies->tsf = le64_to_cpu(mgmt->u.probe_resp.timestamp);
+ new_ies->from_beacon = ieee80211_is_beacon(mgmt->frame_control);
+ memcpy(new_ies->data, new_ie, new_ie_len);
+ if (ieee80211_is_probe_resp(mgmt->frame_control)) {
+ old = rcu_access_pointer(nontrans_bss->proberesp_ies);
+ rcu_assign_pointer(nontrans_bss->proberesp_ies, new_ies);
+ rcu_assign_pointer(nontrans_bss->ies, new_ies);
+ if (old)
+ kfree_rcu((struct cfg80211_bss_ies *)old, rcu_head);
+ } else {
+ old = rcu_access_pointer(nontrans_bss->beacon_ies);
+ rcu_assign_pointer(nontrans_bss->beacon_ies, new_ies);
+ rcu_assign_pointer(nontrans_bss->ies, new_ies);
+ if (old)
+ kfree_rcu((struct cfg80211_bss_ies *)old, rcu_head);
+ }
+}
+
+/* cfg80211_inform_bss_width_frame helper */
+static struct cfg80211_bss *
+cfg80211_inform_single_bss_frame_data(struct wiphy *wiphy,
+ struct cfg80211_inform_bss *data,
+ struct ieee80211_mgmt *mgmt, size_t len,
+ struct cfg80211_non_tx_bss *non_tx_data,
+ gfp_t gfp)
{
struct cfg80211_internal_bss tmp = {}, *res;
struct cfg80211_bss_ies *ies;
@@ -1277,6 +1683,11 @@ cfg80211_inform_bss_frame_data(struct wiphy *wiphy,
tmp.pub.chains = data->chains;
memcpy(tmp.pub.chain_signal, data->chain_signal, IEEE80211_MAX_CHAINS);
ether_addr_copy(tmp.parent_bssid, data->parent_bssid);
+ if (non_tx_data) {
+ tmp.pub.transmitted_bss = non_tx_data->tx_bss;
+ tmp.pub.bssid_index = non_tx_data->bssid_index;
+ tmp.pub.max_bssid_indicator = non_tx_data->max_bssid_indicator;
+ }
signal_valid = abs(data->chan->center_freq - channel->center_freq) <=
wiphy->max_adj_channel_rssi_comp;
@@ -1298,6 +1709,53 @@ cfg80211_inform_bss_frame_data(struct wiphy *wiphy,
/* cfg80211_bss_update gives us a referenced result */
return &res->pub;
}
+
+struct cfg80211_bss *
+cfg80211_inform_bss_frame_data(struct wiphy *wiphy,
+ struct cfg80211_inform_bss *data,
+ struct ieee80211_mgmt *mgmt, size_t len,
+ gfp_t gfp)
+{
+ struct cfg80211_bss *res, *tmp_bss;
+ const u8 *ie = mgmt->u.probe_resp.variable;
+ const struct cfg80211_bss_ies *ies1, *ies2;
+ size_t ielen = len - offsetof(struct ieee80211_mgmt,
+ u.probe_resp.variable);
+ struct cfg80211_non_tx_bss non_tx_data;
+
+ res = cfg80211_inform_single_bss_frame_data(wiphy, data, mgmt,
+ len, NULL, gfp);
+ if (!res || !wiphy->support_mbssid ||
+ !cfg80211_find_ie(WLAN_EID_MULTIPLE_BSSID, ie, ielen))
+ return res;
+ if (wiphy->support_only_he_mbssid &&
+ !cfg80211_find_ext_ie(WLAN_EID_EXT_HE_CAPABILITY, ie, ielen))
+ return res;
+
+ non_tx_data.tx_bss = res;
+ /* process each non-transmitting bss */
+ cfg80211_parse_mbssid_frame_data(wiphy, data, mgmt, len,
+ &non_tx_data, gfp);
+
+ /* check if the res has other nontransmitting bss which is not
+ * in MBSSID IE
+ */
+ ies1 = rcu_access_pointer(res->ies);
+
+ /* go through nontrans_list, if the timestamp of the BSS is
+ * earlier than the timestamp of the transmitting BSS then
+ * update it
+ */
+ list_for_each_entry(tmp_bss, &res->nontrans_list,
+ nontrans_list) {
+ ies2 = rcu_access_pointer(tmp_bss->ies);
+ if (ies2->tsf < ies1->tsf)
+ cfg80211_update_notlisted_nontrans(wiphy, tmp_bss,
+ mgmt, len, gfp);
+ }
+
+ return res;
+}
EXPORT_SYMBOL(cfg80211_inform_bss_frame_data);
void cfg80211_ref_bss(struct wiphy *wiphy, struct cfg80211_bss *pub)
@@ -1335,7 +1793,8 @@ EXPORT_SYMBOL(cfg80211_put_bss);
void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *pub)
{
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
- struct cfg80211_internal_bss *bss;
+ struct cfg80211_internal_bss *bss, *tmp1;
+ struct cfg80211_bss *nontrans_bss, *tmp;
if (WARN_ON(!pub))
return;
@@ -1343,10 +1802,21 @@ void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *pub)
bss = container_of(pub, struct cfg80211_internal_bss, pub);
spin_lock_bh(&rdev->bss_lock);
- if (!list_empty(&bss->list)) {
- if (__cfg80211_unlink_bss(rdev, bss))
+ if (list_empty(&bss->list))
+ goto out;
+
+ list_for_each_entry_safe(nontrans_bss, tmp,
+ &pub->nontrans_list,
+ nontrans_list) {
+ tmp1 = container_of(nontrans_bss,
+ struct cfg80211_internal_bss, pub);
+ if (__cfg80211_unlink_bss(rdev, tmp1))
rdev->bss_generation++;
}
+
+ if (__cfg80211_unlink_bss(rdev, bss))
+ rdev->bss_generation++;
+out:
spin_unlock_bh(&rdev->bss_lock);
}
EXPORT_SYMBOL(cfg80211_unlink_bss);
diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index 9d8b106..d5d9d76 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -1087,9 +1087,16 @@ void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
* Delete all the keys ... pairwise keys can't really
* exist any more anyway, but default keys might.
*/
- if (rdev->ops->del_key)
- for (i = 0; i < 6; i++)
+ if (rdev->ops->del_key) {
+ int max_key_idx = 5;
+
+ if (wiphy_ext_feature_isset(
+ wdev->wiphy,
+ NL80211_EXT_FEATURE_BEACON_PROTECTION))
+ max_key_idx = 7;
+ for (i = 0; i <= max_key_idx; i++)
rdev_del_key(rdev, dev, i, false, NULL);
+ }
rdev_set_qos_map(rdev, dev, NULL);
diff --git a/net/wireless/trace.h b/net/wireless/trace.h
index 54b0bb3..713c15d 100644
--- a/net/wireless/trace.h
+++ b/net/wireless/trace.h
@@ -471,6 +471,23 @@ TRACE_EVENT(rdev_set_default_mgmt_key,
WIPHY_PR_ARG, NETDEV_PR_ARG, __entry->key_index)
);
+TRACE_EVENT(rdev_set_default_beacon_key,
+ TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, u8 key_index),
+ TP_ARGS(wiphy, netdev, key_index),
+ TP_STRUCT__entry(
+ WIPHY_ENTRY
+ NETDEV_ENTRY
+ __field(u8, key_index)
+ ),
+ TP_fast_assign(
+ WIPHY_ASSIGN;
+ NETDEV_ASSIGN;
+ __entry->key_index = key_index;
+ ),
+ TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", key index: %u",
+ WIPHY_PR_ARG, NETDEV_PR_ARG, __entry->key_index)
+);
+
TRACE_EVENT(rdev_start_ap,
TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
struct cfg80211_ap_settings *settings),
@@ -3264,6 +3281,44 @@ TRACE_EVENT(rdev_get_txq_stats,
),
TP_printk(WIPHY_PR_FMT ", " WDEV_PR_FMT, WIPHY_PR_ARG, WDEV_PR_ARG)
);
+
+TRACE_EVENT(rdev_update_owe_info,
+ TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+ struct cfg80211_update_owe_info *owe_info),
+ TP_ARGS(wiphy, netdev, owe_info),
+ TP_STRUCT__entry(WIPHY_ENTRY
+ NETDEV_ENTRY
+ MAC_ENTRY(peer)
+ __field(u16, status)
+ __dynamic_array(u8, ie, owe_info->ie_len)),
+ TP_fast_assign(WIPHY_ASSIGN;
+ NETDEV_ASSIGN;
+ MAC_ASSIGN(peer, owe_info->peer);
+ __entry->status = owe_info->status;
+ memcpy(__get_dynamic_array(ie),
+ owe_info->ie, owe_info->ie_len);),
+ TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", peer: " MAC_PR_FMT
+ " status %d", WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(peer),
+ __entry->status)
+);
+
+TRACE_EVENT(cfg80211_update_owe_info_event,
+ TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+ struct cfg80211_update_owe_info *owe_info),
+ TP_ARGS(wiphy, netdev, owe_info),
+ TP_STRUCT__entry(WIPHY_ENTRY
+ NETDEV_ENTRY
+ MAC_ENTRY(peer)
+ __dynamic_array(u8, ie, owe_info->ie_len)),
+ TP_fast_assign(WIPHY_ASSIGN;
+ NETDEV_ASSIGN;
+ MAC_ASSIGN(peer, owe_info->peer);
+ memcpy(__get_dynamic_array(ie), owe_info->ie,
+ owe_info->ie_len);),
+ TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", peer: " MAC_PR_FMT,
+ WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(peer))
+);
+
#endif /* !__RDEV_OPS_TRACE || TRACE_HEADER_MULTI_READ */
#undef TRACE_INCLUDE_PATH
diff --git a/net/wireless/util.c b/net/wireless/util.c
index e7be500..e0ec41c 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -240,6 +240,9 @@ bool cfg80211_valid_key_idx(struct cfg80211_registered_device *rdev,
if (pairwise)
max_key_idx = 3;
+ else if (wiphy_ext_feature_isset(&rdev->wiphy,
+ NL80211_EXT_FEATURE_BEACON_PROTECTION))
+ max_key_idx = 7;
else if (cfg80211_igtk_cipher_supported(rdev))
max_key_idx = 5;
else
@@ -1053,7 +1056,7 @@ static u32 cfg80211_calculate_bitrate_ht(struct rate_info *rate)
return (bitrate + 50000) / 100000;
}
-static u32 cfg80211_calculate_bitrate_60g(struct rate_info *rate)
+static u32 cfg80211_calculate_bitrate_dmg(struct rate_info *rate)
{
static const u32 __mcs2bitrate[] = {
/* control PHY */
@@ -1100,6 +1103,40 @@ static u32 cfg80211_calculate_bitrate_60g(struct rate_info *rate)
return __mcs2bitrate[rate->mcs];
}
+static u32 cfg80211_calculate_bitrate_edmg(struct rate_info *rate)
+{
+ static const u32 __mcs2bitrate[] = {
+ /* control PHY */
+ [0] = 275,
+ /* SC PHY */
+ [1] = 3850,
+ [2] = 7700,
+ [3] = 9625,
+ [4] = 11550,
+ [5] = 12512, /* 1251.25 mbps */
+ [6] = 13475,
+ [7] = 15400,
+ [8] = 19250,
+ [9] = 23100,
+ [10] = 25025,
+ [11] = 26950,
+ [12] = 30800,
+ [13] = 38500,
+ [14] = 46200,
+ [15] = 50050,
+ [16] = 53900,
+ [17] = 57750,
+ [18] = 69300,
+ [19] = 75075,
+ [20] = 80850,
+ };
+
+ if (WARN_ON_ONCE(rate->mcs >= ARRAY_SIZE(__mcs2bitrate)))
+ return 0;
+
+ return __mcs2bitrate[rate->mcs] * rate->n_bonded_ch;
+}
+
static u32 cfg80211_calculate_bitrate_vht(struct rate_info *rate)
{
static const u32 base[4][10] = {
@@ -1270,8 +1307,10 @@ u32 cfg80211_calculate_bitrate(struct rate_info *rate)
{
if (rate->flags & RATE_INFO_FLAGS_MCS)
return cfg80211_calculate_bitrate_ht(rate);
- if (rate->flags & RATE_INFO_FLAGS_60G)
- return cfg80211_calculate_bitrate_60g(rate);
+ if (rate->flags & RATE_INFO_FLAGS_DMG)
+ return cfg80211_calculate_bitrate_dmg(rate);
+ if (rate->flags & RATE_INFO_FLAGS_EDMG)
+ return cfg80211_calculate_bitrate_edmg(rate);
if (rate->flags & RATE_INFO_FLAGS_VHT_MCS)
return cfg80211_calculate_bitrate_vht(rate);
if (rate->flags & RATE_INFO_FLAGS_HE_MCS)
diff --git a/net/xfrm/Kconfig b/net/xfrm/Kconfig
index 372c91fa..a552b73 100644
--- a/net/xfrm/Kconfig
+++ b/net/xfrm/Kconfig
@@ -27,6 +27,17 @@
If unsure, say Y.
+config XFRM_USER_COMPAT
+ tristate "Compatible ABI support"
+ depends on XFRM_USER && COMPAT_FOR_U64_ALIGNMENT && \
+ HAVE_EFFICIENT_UNALIGNED_ACCESS
+ select WANT_COMPAT_NETLINK_MESSAGES
+ help
+ Transformation(XFRM) user configuration interface like IPsec
+ used by compatible Linux applications.
+
+ If unsure, say N.
+
config XFRM_INTERFACE
tristate "Transformation virtual interface"
depends on XFRM && IPV6
diff --git a/net/xfrm/Makefile b/net/xfrm/Makefile
index fbc4552d..f325115 100644
--- a/net/xfrm/Makefile
+++ b/net/xfrm/Makefile
@@ -9,5 +9,6 @@
obj-$(CONFIG_XFRM_STATISTICS) += xfrm_proc.o
obj-$(CONFIG_XFRM_ALGO) += xfrm_algo.o
obj-$(CONFIG_XFRM_USER) += xfrm_user.o
+obj-$(CONFIG_XFRM_USER_COMPAT) += xfrm_compat.o
obj-$(CONFIG_XFRM_IPCOMP) += xfrm_ipcomp.o
obj-$(CONFIG_XFRM_INTERFACE) += xfrm_interface.o
diff --git a/net/xfrm/xfrm_algo.c b/net/xfrm/xfrm_algo.c
index 44ac85f..d0ca0db 100644
--- a/net/xfrm/xfrm_algo.c
+++ b/net/xfrm/xfrm_algo.c
@@ -241,7 +241,7 @@ static struct xfrm_algo_desc aalg_list[] = {
.uinfo = {
.auth = {
- .icv_truncbits = 96,
+ .icv_truncbits = 128,
.icv_fullbits = 256,
}
},
diff --git a/net/xfrm/xfrm_compat.c b/net/xfrm/xfrm_compat.c
new file mode 100644
index 0000000..6f597ba
--- /dev/null
+++ b/net/xfrm/xfrm_compat.c
@@ -0,0 +1,625 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * XFRM compat layer
+ * Author: Dmitry Safonov <dima@arista.com>
+ * Based on code and translator idea by: Florian Westphal <fw@strlen.de>
+ */
+#include <linux/compat.h>
+#include <linux/xfrm.h>
+#include <net/xfrm.h>
+
+struct compat_xfrm_lifetime_cfg {
+ compat_u64 soft_byte_limit, hard_byte_limit;
+ compat_u64 soft_packet_limit, hard_packet_limit;
+ compat_u64 soft_add_expires_seconds, hard_add_expires_seconds;
+ compat_u64 soft_use_expires_seconds, hard_use_expires_seconds;
+}; /* same size on 32bit, but only 4 byte alignment required */
+
+struct compat_xfrm_lifetime_cur {
+ compat_u64 bytes, packets, add_time, use_time;
+}; /* same size on 32bit, but only 4 byte alignment required */
+
+struct compat_xfrm_userpolicy_info {
+ struct xfrm_selector sel;
+ struct compat_xfrm_lifetime_cfg lft;
+ struct compat_xfrm_lifetime_cur curlft;
+ __u32 priority, index;
+ u8 dir, action, flags, share;
+ /* 4 bytes additional padding on 64bit */
+};
+
+struct compat_xfrm_usersa_info {
+ struct xfrm_selector sel;
+ struct xfrm_id id;
+ xfrm_address_t saddr;
+ struct compat_xfrm_lifetime_cfg lft;
+ struct compat_xfrm_lifetime_cur curlft;
+ struct xfrm_stats stats;
+ __u32 seq, reqid;
+ u16 family;
+ u8 mode, replay_window, flags;
+ /* 4 bytes additional padding on 64bit */
+};
+
+struct compat_xfrm_user_acquire {
+ struct xfrm_id id;
+ xfrm_address_t saddr;
+ struct xfrm_selector sel;
+ struct compat_xfrm_userpolicy_info policy;
+ /* 4 bytes additional padding on 64bit */
+ __u32 aalgos, ealgos, calgos, seq;
+};
+
+struct compat_xfrm_userspi_info {
+ struct compat_xfrm_usersa_info info;
+ /* 4 bytes additional padding on 64bit */
+ __u32 min, max;
+};
+
+struct compat_xfrm_user_expire {
+ struct compat_xfrm_usersa_info state;
+ /* 8 bytes additional padding on 64bit */
+ u8 hard;
+};
+
+struct compat_xfrm_user_polexpire {
+ struct compat_xfrm_userpolicy_info pol;
+ /* 8 bytes additional padding on 64bit */
+ u8 hard;
+};
+
+#define XMSGSIZE(type) sizeof(struct type)
+
+static const int compat_msg_min[XFRM_NR_MSGTYPES] = {
+ [XFRM_MSG_NEWSA - XFRM_MSG_BASE] = XMSGSIZE(compat_xfrm_usersa_info),
+ [XFRM_MSG_DELSA - XFRM_MSG_BASE] = XMSGSIZE(xfrm_usersa_id),
+ [XFRM_MSG_GETSA - XFRM_MSG_BASE] = XMSGSIZE(xfrm_usersa_id),
+ [XFRM_MSG_NEWPOLICY - XFRM_MSG_BASE] = XMSGSIZE(compat_xfrm_userpolicy_info),
+ [XFRM_MSG_DELPOLICY - XFRM_MSG_BASE] = XMSGSIZE(xfrm_userpolicy_id),
+ [XFRM_MSG_GETPOLICY - XFRM_MSG_BASE] = XMSGSIZE(xfrm_userpolicy_id),
+ [XFRM_MSG_ALLOCSPI - XFRM_MSG_BASE] = XMSGSIZE(compat_xfrm_userspi_info),
+ [XFRM_MSG_ACQUIRE - XFRM_MSG_BASE] = XMSGSIZE(compat_xfrm_user_acquire),
+ [XFRM_MSG_EXPIRE - XFRM_MSG_BASE] = XMSGSIZE(compat_xfrm_user_expire),
+ [XFRM_MSG_UPDPOLICY - XFRM_MSG_BASE] = XMSGSIZE(compat_xfrm_userpolicy_info),
+ [XFRM_MSG_UPDSA - XFRM_MSG_BASE] = XMSGSIZE(compat_xfrm_usersa_info),
+ [XFRM_MSG_POLEXPIRE - XFRM_MSG_BASE] = XMSGSIZE(compat_xfrm_user_polexpire),
+ [XFRM_MSG_FLUSHSA - XFRM_MSG_BASE] = XMSGSIZE(xfrm_usersa_flush),
+ [XFRM_MSG_FLUSHPOLICY - XFRM_MSG_BASE] = 0,
+ [XFRM_MSG_NEWAE - XFRM_MSG_BASE] = XMSGSIZE(xfrm_aevent_id),
+ [XFRM_MSG_GETAE - XFRM_MSG_BASE] = XMSGSIZE(xfrm_aevent_id),
+ [XFRM_MSG_REPORT - XFRM_MSG_BASE] = XMSGSIZE(xfrm_user_report),
+ [XFRM_MSG_MIGRATE - XFRM_MSG_BASE] = XMSGSIZE(xfrm_userpolicy_id),
+ [XFRM_MSG_NEWSADINFO - XFRM_MSG_BASE] = sizeof(u32),
+ [XFRM_MSG_GETSADINFO - XFRM_MSG_BASE] = sizeof(u32),
+ [XFRM_MSG_NEWSPDINFO - XFRM_MSG_BASE] = sizeof(u32),
+ [XFRM_MSG_GETSPDINFO - XFRM_MSG_BASE] = sizeof(u32),
+ [XFRM_MSG_MAPPING - XFRM_MSG_BASE] = XMSGSIZE(xfrm_user_mapping)
+};
+
+static const struct nla_policy compat_policy[XFRMA_MAX+1] = {
+ [XFRMA_SA] = { .len = XMSGSIZE(compat_xfrm_usersa_info)},
+ [XFRMA_POLICY] = { .len = XMSGSIZE(compat_xfrm_userpolicy_info)},
+ [XFRMA_LASTUSED] = { .type = NLA_U64},
+ [XFRMA_ALG_AUTH_TRUNC] = { .len = sizeof(struct xfrm_algo_auth)},
+ [XFRMA_ALG_AEAD] = { .len = sizeof(struct xfrm_algo_aead) },
+ [XFRMA_ALG_AUTH] = { .len = sizeof(struct xfrm_algo) },
+ [XFRMA_ALG_CRYPT] = { .len = sizeof(struct xfrm_algo) },
+ [XFRMA_ALG_COMP] = { .len = sizeof(struct xfrm_algo) },
+ [XFRMA_ENCAP] = { .len = sizeof(struct xfrm_encap_tmpl) },
+ [XFRMA_TMPL] = { .len = sizeof(struct xfrm_user_tmpl) },
+ [XFRMA_SEC_CTX] = { .len = sizeof(struct xfrm_sec_ctx) },
+ [XFRMA_LTIME_VAL] = { .len = sizeof(struct xfrm_lifetime_cur) },
+ [XFRMA_REPLAY_VAL] = { .len = sizeof(struct xfrm_replay_state) },
+ [XFRMA_REPLAY_THRESH] = { .type = NLA_U32 },
+ [XFRMA_ETIMER_THRESH] = { .type = NLA_U32 },
+ [XFRMA_SRCADDR] = { .len = sizeof(xfrm_address_t) },
+ [XFRMA_COADDR] = { .len = sizeof(xfrm_address_t) },
+ [XFRMA_POLICY_TYPE] = { .len = sizeof(struct xfrm_userpolicy_type)},
+ [XFRMA_MIGRATE] = { .len = sizeof(struct xfrm_user_migrate) },
+ [XFRMA_KMADDRESS] = { .len = sizeof(struct xfrm_user_kmaddress) },
+ [XFRMA_MARK] = { .len = sizeof(struct xfrm_mark) },
+ [XFRMA_TFCPAD] = { .type = NLA_U32 },
+ [XFRMA_REPLAY_ESN_VAL] = { .len = sizeof(struct xfrm_replay_state_esn) },
+ [XFRMA_SA_EXTRA_FLAGS] = { .type = NLA_U32 },
+ [XFRMA_PROTO] = { .type = NLA_U8 },
+ [XFRMA_ADDRESS_FILTER] = { .len = sizeof(struct xfrm_address_filter) },
+ [XFRMA_OFFLOAD_DEV] = { .len = sizeof(struct xfrm_user_offload) },
+ [XFRMA_SET_MARK] = { .type = NLA_U32 },
+ [XFRMA_SET_MARK_MASK] = { .type = NLA_U32 },
+ [XFRMA_IF_ID] = { .type = NLA_U32 },
+};
+
+static struct nlmsghdr *xfrm_nlmsg_put_compat(struct sk_buff *skb,
+ const struct nlmsghdr *nlh_src, u16 type)
+{
+ int payload = compat_msg_min[type];
+ int src_len = xfrm_msg_min[type];
+ struct nlmsghdr *nlh_dst;
+
+ /* Compat messages are shorter or equal to native (+padding) */
+ if (WARN_ON_ONCE(src_len < payload))
+ return ERR_PTR(-EMSGSIZE);
+
+ nlh_dst = nlmsg_put(skb, nlh_src->nlmsg_pid, nlh_src->nlmsg_seq,
+ nlh_src->nlmsg_type, payload, nlh_src->nlmsg_flags);
+ if (!nlh_dst)
+ return ERR_PTR(-EMSGSIZE);
+
+ memset(nlmsg_data(nlh_dst), 0, payload);
+
+ switch (nlh_src->nlmsg_type) {
+ /* Compat message has the same layout as native */
+ case XFRM_MSG_DELSA:
+ case XFRM_MSG_DELPOLICY:
+ case XFRM_MSG_FLUSHSA:
+ case XFRM_MSG_FLUSHPOLICY:
+ case XFRM_MSG_NEWAE:
+ case XFRM_MSG_REPORT:
+ case XFRM_MSG_MIGRATE:
+ case XFRM_MSG_NEWSADINFO:
+ case XFRM_MSG_NEWSPDINFO:
+ case XFRM_MSG_MAPPING:
+ WARN_ON_ONCE(src_len != payload);
+ memcpy(nlmsg_data(nlh_dst), nlmsg_data(nlh_src), src_len);
+ break;
+ /* 4 byte alignment for trailing u64 on native, but not on compat */
+ case XFRM_MSG_NEWSA:
+ case XFRM_MSG_NEWPOLICY:
+ case XFRM_MSG_UPDSA:
+ case XFRM_MSG_UPDPOLICY:
+ WARN_ON_ONCE(src_len != payload + 4);
+ memcpy(nlmsg_data(nlh_dst), nlmsg_data(nlh_src), payload);
+ break;
+ case XFRM_MSG_EXPIRE: {
+ const struct xfrm_user_expire *src_ue = nlmsg_data(nlh_src);
+ struct compat_xfrm_user_expire *dst_ue = nlmsg_data(nlh_dst);
+
+ /* compat_xfrm_user_expire has 4-byte smaller state */
+ memcpy(dst_ue, src_ue, sizeof(dst_ue->state));
+ dst_ue->hard = src_ue->hard;
+ break;
+ }
+ case XFRM_MSG_ACQUIRE: {
+ const struct xfrm_user_acquire *src_ua = nlmsg_data(nlh_src);
+ struct compat_xfrm_user_acquire *dst_ua = nlmsg_data(nlh_dst);
+
+ memcpy(dst_ua, src_ua, offsetof(struct compat_xfrm_user_acquire, aalgos));
+ dst_ua->aalgos = src_ua->aalgos;
+ dst_ua->ealgos = src_ua->ealgos;
+ dst_ua->calgos = src_ua->calgos;
+ dst_ua->seq = src_ua->seq;
+ break;
+ }
+ case XFRM_MSG_POLEXPIRE: {
+ const struct xfrm_user_polexpire *src_upe = nlmsg_data(nlh_src);
+ struct compat_xfrm_user_polexpire *dst_upe = nlmsg_data(nlh_dst);
+
+ /* compat_xfrm_user_polexpire has 4-byte smaller state */
+ memcpy(dst_upe, src_upe, sizeof(dst_upe->pol));
+ dst_upe->hard = src_upe->hard;
+ break;
+ }
+ case XFRM_MSG_ALLOCSPI: {
+ const struct xfrm_userspi_info *src_usi = nlmsg_data(nlh_src);
+ struct compat_xfrm_userspi_info *dst_usi = nlmsg_data(nlh_dst);
+
+ /* compat_xfrm_user_polexpire has 4-byte smaller state */
+ memcpy(dst_usi, src_usi, sizeof(src_usi->info));
+ dst_usi->min = src_usi->min;
+ dst_usi->max = src_usi->max;
+ break;
+ }
+ /* Not being sent by kernel */
+ case XFRM_MSG_GETSA:
+ case XFRM_MSG_GETPOLICY:
+ case XFRM_MSG_GETAE:
+ case XFRM_MSG_GETSADINFO:
+ case XFRM_MSG_GETSPDINFO:
+ default:
+ WARN_ONCE(1, "unsupported nlmsg_type %d", nlh_src->nlmsg_type);
+ return ERR_PTR(-EOPNOTSUPP);
+ }
+
+ return nlh_dst;
+}
+
+static int xfrm_nla_cpy(struct sk_buff *dst, const struct nlattr *src, int len)
+{
+ return nla_put(dst, src->nla_type, len, nla_data(src));
+}
+
+static int xfrm_xlate64_attr(struct sk_buff *dst, const struct nlattr *src)
+{
+ switch (src->nla_type) {
+ case XFRMA_PAD:
+ /* Ignore */
+ return 0;
+ case XFRMA_ALG_AUTH:
+ case XFRMA_ALG_CRYPT:
+ case XFRMA_ALG_COMP:
+ case XFRMA_ENCAP:
+ case XFRMA_TMPL:
+ return xfrm_nla_cpy(dst, src, nla_len(src));
+ case XFRMA_SA:
+ return xfrm_nla_cpy(dst, src, XMSGSIZE(compat_xfrm_usersa_info));
+ case XFRMA_POLICY:
+ return xfrm_nla_cpy(dst, src, XMSGSIZE(compat_xfrm_userpolicy_info));
+ case XFRMA_SEC_CTX:
+ return xfrm_nla_cpy(dst, src, nla_len(src));
+ case XFRMA_LTIME_VAL:
+ return nla_put_64bit(dst, src->nla_type, nla_len(src),
+ nla_data(src), XFRMA_PAD);
+ case XFRMA_REPLAY_VAL:
+ case XFRMA_REPLAY_THRESH:
+ case XFRMA_ETIMER_THRESH:
+ case XFRMA_SRCADDR:
+ case XFRMA_COADDR:
+ return xfrm_nla_cpy(dst, src, nla_len(src));
+ case XFRMA_LASTUSED:
+ return nla_put_64bit(dst, src->nla_type, nla_len(src),
+ nla_data(src), XFRMA_PAD);
+ case XFRMA_POLICY_TYPE:
+ case XFRMA_MIGRATE:
+ case XFRMA_ALG_AEAD:
+ case XFRMA_KMADDRESS:
+ case XFRMA_ALG_AUTH_TRUNC:
+ case XFRMA_MARK:
+ case XFRMA_TFCPAD:
+ case XFRMA_REPLAY_ESN_VAL:
+ case XFRMA_SA_EXTRA_FLAGS:
+ case XFRMA_PROTO:
+ case XFRMA_ADDRESS_FILTER:
+ case XFRMA_OFFLOAD_DEV:
+ case XFRMA_SET_MARK:
+ case XFRMA_SET_MARK_MASK:
+ case XFRMA_IF_ID:
+ return xfrm_nla_cpy(dst, src, nla_len(src));
+ default:
+ BUILD_BUG_ON(XFRMA_MAX != XFRMA_IF_ID);
+ WARN_ONCE(1, "unsupported nla_type %d", src->nla_type);
+ return -EOPNOTSUPP;
+ }
+}
+
+/* Take kernel-built (64bit layout) and create 32bit layout for userspace */
+static int xfrm_xlate64(struct sk_buff *dst, const struct nlmsghdr *nlh_src)
+{
+ u16 type = nlh_src->nlmsg_type - XFRM_MSG_BASE;
+ const struct nlattr *nla, *attrs;
+ struct nlmsghdr *nlh_dst;
+ int len, remaining;
+
+ nlh_dst = xfrm_nlmsg_put_compat(dst, nlh_src, type);
+ if (IS_ERR(nlh_dst))
+ return PTR_ERR(nlh_dst);
+
+ attrs = nlmsg_attrdata(nlh_src, xfrm_msg_min[type]);
+ len = nlmsg_attrlen(nlh_src, xfrm_msg_min[type]);
+
+ nla_for_each_attr(nla, attrs, len, remaining) {
+ int err = xfrm_xlate64_attr(dst, nla);
+
+ if (err)
+ return err;
+ }
+
+ nlmsg_end(dst, nlh_dst);
+
+ return 0;
+}
+
+static int xfrm_alloc_compat(struct sk_buff *skb, const struct nlmsghdr *nlh_src)
+{
+ u16 type = nlh_src->nlmsg_type - XFRM_MSG_BASE;
+ struct sk_buff *new = NULL;
+ int err;
+
+ if (WARN_ON_ONCE(type >= ARRAY_SIZE(xfrm_msg_min)))
+ return -EOPNOTSUPP;
+
+ if (skb_shinfo(skb)->frag_list == NULL) {
+ new = alloc_skb(skb->len + skb_tailroom(skb), GFP_ATOMIC);
+ if (!new)
+ return -ENOMEM;
+ skb_shinfo(skb)->frag_list = new;
+ }
+
+ err = xfrm_xlate64(skb_shinfo(skb)->frag_list, nlh_src);
+ if (err) {
+ if (new) {
+ kfree_skb(new);
+ skb_shinfo(skb)->frag_list = NULL;
+ }
+ return err;
+ }
+
+ return 0;
+}
+
+/* Calculates len of translated 64-bit message. */
+static size_t xfrm_user_rcv_calculate_len64(const struct nlmsghdr *src,
+ struct nlattr *attrs[XFRMA_MAX+1])
+{
+ size_t len = nlmsg_len(src);
+
+ switch (src->nlmsg_type) {
+ case XFRM_MSG_NEWSA:
+ case XFRM_MSG_NEWPOLICY:
+ case XFRM_MSG_ALLOCSPI:
+ case XFRM_MSG_ACQUIRE:
+ case XFRM_MSG_UPDPOLICY:
+ case XFRM_MSG_UPDSA:
+ len += 4;
+ break;
+ case XFRM_MSG_EXPIRE:
+ case XFRM_MSG_POLEXPIRE:
+ len += 8;
+ break;
+ default:
+ break;
+ }
+
+ if (attrs[XFRMA_SA])
+ len += 4;
+ if (attrs[XFRMA_POLICY])
+ len += 4;
+
+ /* XXX: some attrs may need to be realigned
+ * if !CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+ */
+
+ return len;
+}
+
+static int xfrm_attr_cpy32(void *dst, size_t *pos, const struct nlattr *src,
+ size_t size, int copy_len, int payload)
+{
+ struct nlmsghdr *nlmsg = dst;
+ struct nlattr *nla;
+
+ if (WARN_ON_ONCE(copy_len > payload))
+ copy_len = payload;
+
+ if (size - *pos < nla_attr_size(payload))
+ return -ENOBUFS;
+
+ nla = dst + *pos;
+
+ memcpy(nla, src, nla_attr_size(copy_len));
+ nla->nla_len = nla_attr_size(payload);
+ *pos += nla_attr_size(payload);
+ nlmsg->nlmsg_len += nla->nla_len;
+
+ memset(dst + *pos, 0, payload - copy_len);
+ *pos += payload - copy_len;
+
+ return 0;
+}
+
+static int xfrm_xlate32_attr(void *dst, const struct nlattr *nla,
+ size_t *pos, size_t size,
+ struct netlink_ext_ack *extack)
+{
+ int type = nla_type(nla);
+ u16 pol_len32, pol_len64;
+ int err;
+
+ if (type > XFRMA_MAX) {
+ BUILD_BUG_ON(XFRMA_MAX != XFRMA_IF_ID);
+ NL_SET_ERR_MSG(extack, "Bad attribute");
+ return -EOPNOTSUPP;
+ }
+ if (nla_len(nla) < compat_policy[type].len) {
+ NL_SET_ERR_MSG(extack, "Attribute bad length");
+ return -EOPNOTSUPP;
+ }
+
+ pol_len32 = compat_policy[type].len;
+ pol_len64 = xfrma_policy[type].len;
+
+ /* XFRMA_SA and XFRMA_POLICY - need to know how-to translate */
+ if (pol_len32 != pol_len64) {
+ if (nla_len(nla) != compat_policy[type].len) {
+ NL_SET_ERR_MSG(extack, "Attribute bad length");
+ return -EOPNOTSUPP;
+ }
+ err = xfrm_attr_cpy32(dst, pos, nla, size, pol_len32, pol_len64);
+ if (err)
+ return err;
+ }
+
+ return xfrm_attr_cpy32(dst, pos, nla, size, nla_len(nla), nla_len(nla));
+}
+
+static int xfrm_xlate32(struct nlmsghdr *dst, const struct nlmsghdr *src,
+ struct nlattr *attrs[XFRMA_MAX+1],
+ size_t size, u8 type, struct netlink_ext_ack *extack)
+{
+ size_t pos;
+ int i;
+
+ memcpy(dst, src, NLMSG_HDRLEN);
+ dst->nlmsg_len = NLMSG_HDRLEN + xfrm_msg_min[type];
+ memset(nlmsg_data(dst), 0, xfrm_msg_min[type]);
+
+ switch (src->nlmsg_type) {
+ /* Compat message has the same layout as native */
+ case XFRM_MSG_DELSA:
+ case XFRM_MSG_GETSA:
+ case XFRM_MSG_DELPOLICY:
+ case XFRM_MSG_GETPOLICY:
+ case XFRM_MSG_FLUSHSA:
+ case XFRM_MSG_FLUSHPOLICY:
+ case XFRM_MSG_NEWAE:
+ case XFRM_MSG_GETAE:
+ case XFRM_MSG_REPORT:
+ case XFRM_MSG_MIGRATE:
+ case XFRM_MSG_NEWSADINFO:
+ case XFRM_MSG_GETSADINFO:
+ case XFRM_MSG_NEWSPDINFO:
+ case XFRM_MSG_GETSPDINFO:
+ case XFRM_MSG_MAPPING:
+ memcpy(nlmsg_data(dst), nlmsg_data(src), compat_msg_min[type]);
+ break;
+ /* 4 byte alignment for trailing u64 on native, but not on compat */
+ case XFRM_MSG_NEWSA:
+ case XFRM_MSG_NEWPOLICY:
+ case XFRM_MSG_UPDSA:
+ case XFRM_MSG_UPDPOLICY:
+ memcpy(nlmsg_data(dst), nlmsg_data(src), compat_msg_min[type]);
+ break;
+ case XFRM_MSG_EXPIRE: {
+ const struct compat_xfrm_user_expire *src_ue = nlmsg_data(src);
+ struct xfrm_user_expire *dst_ue = nlmsg_data(dst);
+
+ /* compat_xfrm_user_expire has 4-byte smaller state */
+ memcpy(dst_ue, src_ue, sizeof(src_ue->state));
+ dst_ue->hard = src_ue->hard;
+ break;
+ }
+ case XFRM_MSG_ACQUIRE: {
+ const struct compat_xfrm_user_acquire *src_ua = nlmsg_data(src);
+ struct xfrm_user_acquire *dst_ua = nlmsg_data(dst);
+
+ memcpy(dst_ua, src_ua, offsetof(struct compat_xfrm_user_acquire, aalgos));
+ dst_ua->aalgos = src_ua->aalgos;
+ dst_ua->ealgos = src_ua->ealgos;
+ dst_ua->calgos = src_ua->calgos;
+ dst_ua->seq = src_ua->seq;
+ break;
+ }
+ case XFRM_MSG_POLEXPIRE: {
+ const struct compat_xfrm_user_polexpire *src_upe = nlmsg_data(src);
+ struct xfrm_user_polexpire *dst_upe = nlmsg_data(dst);
+
+ /* compat_xfrm_user_polexpire has 4-byte smaller state */
+ memcpy(dst_upe, src_upe, sizeof(src_upe->pol));
+ dst_upe->hard = src_upe->hard;
+ break;
+ }
+ case XFRM_MSG_ALLOCSPI: {
+ const struct compat_xfrm_userspi_info *src_usi = nlmsg_data(src);
+ struct xfrm_userspi_info *dst_usi = nlmsg_data(dst);
+
+ /* compat_xfrm_user_polexpire has 4-byte smaller state */
+ memcpy(dst_usi, src_usi, sizeof(src_usi->info));
+ dst_usi->min = src_usi->min;
+ dst_usi->max = src_usi->max;
+ break;
+ }
+ default:
+ NL_SET_ERR_MSG(extack, "Unsupported message type");
+ return -EOPNOTSUPP;
+ }
+ pos = dst->nlmsg_len;
+
+ for (i = 1; i < XFRMA_MAX + 1; i++) {
+ int err;
+
+ if (i == XFRMA_PAD)
+ continue;
+
+ if (!attrs[i])
+ continue;
+
+ err = xfrm_xlate32_attr(dst, attrs[i], &pos, size, extack);
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
+
+static struct nlmsghdr *xfrm_user_rcv_msg_compat(const struct nlmsghdr *h32,
+ int maxtype, const struct nla_policy *policy,
+ struct netlink_ext_ack *extack)
+{
+ /* netlink_rcv_skb() checks if a message has full (struct nlmsghdr) */
+ u16 type = h32->nlmsg_type - XFRM_MSG_BASE;
+ struct nlattr *attrs[XFRMA_MAX+1];
+ struct nlmsghdr *h64;
+ size_t len;
+ int err;
+
+ BUILD_BUG_ON(ARRAY_SIZE(xfrm_msg_min) != ARRAY_SIZE(compat_msg_min));
+
+ if (type >= ARRAY_SIZE(xfrm_msg_min))
+ return ERR_PTR(-EINVAL);
+
+ /* Don't call parse: the message might have only nlmsg header */
+ if ((h32->nlmsg_type == XFRM_MSG_GETSA ||
+ h32->nlmsg_type == XFRM_MSG_GETPOLICY) &&
+ (h32->nlmsg_flags & NLM_F_DUMP))
+ return NULL;
+
+ err = nlmsg_parse(h32, compat_msg_min[type], attrs,
+ maxtype ? : XFRMA_MAX, policy ? : compat_policy, extack);
+ if (err < 0)
+ return ERR_PTR(err);
+
+ len = xfrm_user_rcv_calculate_len64(h32, attrs);
+ /* The message doesn't need translation */
+ if (len == nlmsg_len(h32))
+ return NULL;
+
+ len += NLMSG_HDRLEN;
+ h64 = kvmalloc(len, GFP_KERNEL | __GFP_ZERO);
+ if (!h64)
+ return ERR_PTR(-ENOMEM);
+
+ err = xfrm_xlate32(h64, h32, attrs, len, type, extack);
+ if (err < 0) {
+ kvfree(h64);
+ return ERR_PTR(err);
+ }
+
+ return h64;
+}
+
+static int xfrm_user_policy_compat(u8 **pdata32, int optlen)
+{
+ struct compat_xfrm_userpolicy_info *p = (void *)*pdata32;
+ u8 *src_templates, *dst_templates;
+ u8 *data64;
+
+ if (optlen < sizeof(*p))
+ return -EINVAL;
+
+ data64 = kmalloc(optlen + 4, GFP_USER | __GFP_NOWARN);
+ if (!data64)
+ return -ENOMEM;
+
+ memcpy(data64, *pdata32, sizeof(*p));
+ memset(data64 + sizeof(*p), 0, 4);
+
+ src_templates = *pdata32 + sizeof(*p);
+ dst_templates = data64 + sizeof(*p) + 4;
+ memcpy(dst_templates, src_templates, optlen - sizeof(*p));
+
+ kfree(*pdata32);
+ *pdata32 = data64;
+ return 0;
+}
+
+static struct xfrm_translator xfrm_translator = {
+ .owner = THIS_MODULE,
+ .alloc_compat = xfrm_alloc_compat,
+ .rcv_msg_compat = xfrm_user_rcv_msg_compat,
+ .xlate_user_policy_sockptr = xfrm_user_policy_compat,
+};
+
+static int __init xfrm_compat_init(void)
+{
+ return xfrm_register_translator(&xfrm_translator);
+}
+
+static void __exit xfrm_compat_exit(void)
+{
+ xfrm_unregister_translator(&xfrm_translator);
+}
+
+module_init(xfrm_compat_init);
+module_exit(xfrm_compat_exit);
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Dmitry Safonov");
+MODULE_DESCRIPTION("XFRM 32-bit compatibility layer");
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 44acc72..d739955 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -41,6 +41,7 @@ static void xfrm_state_gc_task(struct work_struct *work);
*/
static unsigned int xfrm_state_hashmax __read_mostly = 1 * 1024 * 1024;
+static __read_mostly seqcount_t xfrm_state_hash_generation = SEQCNT_ZERO(xfrm_state_hash_generation);
static struct kmem_cache *xfrm_state_cache __ro_after_init;
static DECLARE_WORK(xfrm_state_gc_work, xfrm_state_gc_task);
@@ -136,7 +137,7 @@ static void xfrm_hash_resize(struct work_struct *work)
}
spin_lock_bh(&net->xfrm.xfrm_state_lock);
- write_seqcount_begin(&net->xfrm.xfrm_state_hash_generation);
+ write_seqcount_begin(&xfrm_state_hash_generation);
nhashmask = (nsize / sizeof(struct hlist_head)) - 1U;
odst = xfrm_state_deref_prot(net->xfrm.state_bydst, net);
@@ -152,7 +153,7 @@ static void xfrm_hash_resize(struct work_struct *work)
rcu_assign_pointer(net->xfrm.state_byspi, nspi);
net->xfrm.state_hmask = nhashmask;
- write_seqcount_end(&net->xfrm.xfrm_state_hash_generation);
+ write_seqcount_end(&xfrm_state_hash_generation);
spin_unlock_bh(&net->xfrm.xfrm_state_lock);
osize = (ohashmask + 1) * sizeof(struct hlist_head);
@@ -964,7 +965,7 @@ xfrm_state_find(const xfrm_address_t *daddr, const xfrm_address_t *saddr,
to_put = NULL;
- sequence = read_seqcount_begin(&net->xfrm.xfrm_state_hash_generation);
+ sequence = read_seqcount_begin(&xfrm_state_hash_generation);
rcu_read_lock();
h = xfrm_dst_hash(net, daddr, saddr, tmpl->reqid, encap_family);
@@ -1075,7 +1076,7 @@ xfrm_state_find(const xfrm_address_t *daddr, const xfrm_address_t *saddr,
if (to_put)
xfrm_state_put(to_put);
- if (read_seqcount_retry(&net->xfrm.xfrm_state_hash_generation, sequence)) {
+ if (read_seqcount_retry(&xfrm_state_hash_generation, sequence)) {
*err = -EAGAIN;
if (x) {
xfrm_state_put(x);
@@ -2119,6 +2120,66 @@ bool km_is_alive(const struct km_event *c)
}
EXPORT_SYMBOL(km_is_alive);
+#if IS_ENABLED(CONFIG_XFRM_USER_COMPAT)
+static DEFINE_SPINLOCK(xfrm_translator_lock);
+static struct xfrm_translator __rcu *xfrm_translator;
+
+struct xfrm_translator *xfrm_get_translator(void)
+{
+ struct xfrm_translator *xtr;
+
+ rcu_read_lock();
+ xtr = rcu_dereference(xfrm_translator);
+ if (unlikely(!xtr))
+ goto out;
+ if (!try_module_get(xtr->owner))
+ xtr = NULL;
+out:
+ rcu_read_unlock();
+ return xtr;
+}
+EXPORT_SYMBOL_GPL(xfrm_get_translator);
+
+void xfrm_put_translator(struct xfrm_translator *xtr)
+{
+ module_put(xtr->owner);
+}
+EXPORT_SYMBOL_GPL(xfrm_put_translator);
+
+int xfrm_register_translator(struct xfrm_translator *xtr)
+{
+ int err = 0;
+
+ spin_lock_bh(&xfrm_translator_lock);
+ if (unlikely(xfrm_translator != NULL))
+ err = -EEXIST;
+ else
+ rcu_assign_pointer(xfrm_translator, xtr);
+ spin_unlock_bh(&xfrm_translator_lock);
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(xfrm_register_translator);
+
+int xfrm_unregister_translator(struct xfrm_translator *xtr)
+{
+ int err = 0;
+
+ spin_lock_bh(&xfrm_translator_lock);
+ if (likely(xfrm_translator != NULL)) {
+ if (rcu_access_pointer(xfrm_translator) != xtr)
+ err = -EINVAL;
+ else
+ RCU_INIT_POINTER(xfrm_translator, NULL);
+ }
+ spin_unlock_bh(&xfrm_translator_lock);
+ synchronize_rcu();
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(xfrm_unregister_translator);
+#endif
+
int xfrm_user_policy(struct sock *sk, int optname, u8 __user *optval, int optlen)
{
int err;
@@ -2126,11 +2187,6 @@ int xfrm_user_policy(struct sock *sk, int optname, u8 __user *optval, int optlen
struct xfrm_mgr *km;
struct xfrm_policy *pol = NULL;
-#ifdef CONFIG_COMPAT
- if (in_compat_syscall())
- return -EOPNOTSUPP;
-#endif
-
if (!optval && !optlen) {
xfrm_sk_policy_insert(sk, XFRM_POLICY_IN, NULL);
xfrm_sk_policy_insert(sk, XFRM_POLICY_OUT, NULL);
@@ -2145,6 +2201,23 @@ int xfrm_user_policy(struct sock *sk, int optname, u8 __user *optval, int optlen
if (IS_ERR(data))
return PTR_ERR(data);
+ /* Use the 64-bit / untranslated format on Android, even for compat */
+ if (!IS_ENABLED(CONFIG_ANDROID) || IS_ENABLED(CONFIG_XFRM_USER_COMPAT)) {
+ if (in_compat_syscall()) {
+ struct xfrm_translator *xtr = xfrm_get_translator();
+
+ if (!xtr)
+ return -EOPNOTSUPP;
+
+ err = xtr->xlate_user_policy_sockptr(&data, optlen);
+ xfrm_put_translator(xtr);
+ if (err) {
+ kfree(data);
+ return err;
+ }
+ }
+ }
+
err = -EINVAL;
rcu_read_lock();
list_for_each_entry_rcu(km, &xfrm_km_list, list) {
@@ -2405,7 +2478,6 @@ int __net_init xfrm_state_init(struct net *net)
net->xfrm.state_num = 0;
INIT_WORK(&net->xfrm.state_hash_work, xfrm_hash_resize);
spin_lock_init(&net->xfrm.xfrm_state_lock);
- seqcount_init(&net->xfrm.xfrm_state_hash_generation);
return 0;
out_byspi:
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index f94abe1..b5ebb85 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -974,6 +974,7 @@ static int dump_one_state(struct xfrm_state *x, int count, void *ptr)
struct xfrm_dump_info *sp = ptr;
struct sk_buff *in_skb = sp->in_skb;
struct sk_buff *skb = sp->out_skb;
+ struct xfrm_translator *xtr;
struct xfrm_usersa_info *p;
struct nlmsghdr *nlh;
int err;
@@ -991,6 +992,18 @@ static int dump_one_state(struct xfrm_state *x, int count, void *ptr)
return err;
}
nlmsg_end(skb, nlh);
+
+ xtr = xfrm_get_translator();
+ if (xtr) {
+ err = xtr->alloc_compat(skb, nlh);
+
+ xfrm_put_translator(xtr);
+ if (err) {
+ nlmsg_cancel(skb, nlh);
+ return err;
+ }
+ }
+
return 0;
}
@@ -1005,7 +1018,6 @@ static int xfrm_dump_sa_done(struct netlink_callback *cb)
return 0;
}
-static const struct nla_policy xfrma_policy[XFRMA_MAX+1];
static int xfrm_dump_sa(struct sk_buff *skb, struct netlink_callback *cb)
{
struct net *net = sock_net(skb->sk);
@@ -1082,12 +1094,24 @@ static inline int xfrm_nlmsg_multicast(struct net *net, struct sk_buff *skb,
u32 pid, unsigned int group)
{
struct sock *nlsk = rcu_dereference(net->xfrm.nlsk);
+ struct xfrm_translator *xtr;
if (!nlsk) {
kfree_skb(skb);
return -EPIPE;
}
+ xtr = xfrm_get_translator();
+ if (xtr) {
+ int err = xtr->alloc_compat(skb, nlmsg_hdr(skb));
+
+ xfrm_put_translator(xtr);
+ if (err) {
+ kfree_skb(skb);
+ return err;
+ }
+ }
+
return nlmsg_multicast(nlsk, skb, pid, group, GFP_ATOMIC);
}
@@ -1307,6 +1331,7 @@ static int xfrm_alloc_userspi(struct sk_buff *skb, struct nlmsghdr *nlh,
struct net *net = sock_net(skb->sk);
struct xfrm_state *x;
struct xfrm_userspi_info *p;
+ struct xfrm_translator *xtr;
struct sk_buff *resp_skb;
xfrm_address_t *daddr;
int family;
@@ -1357,6 +1382,17 @@ static int xfrm_alloc_userspi(struct sk_buff *skb, struct nlmsghdr *nlh,
goto out;
}
+ xtr = xfrm_get_translator();
+ if (xtr) {
+ err = xtr->alloc_compat(skb, nlmsg_hdr(skb));
+
+ xfrm_put_translator(xtr);
+ if (err) {
+ kfree_skb(resp_skb);
+ goto out;
+ }
+ }
+
err = nlmsg_unicast(net->xfrm.nlsk, resp_skb, NETLINK_CB(skb).portid);
out:
@@ -1763,6 +1799,7 @@ static int dump_one_policy(struct xfrm_policy *xp, int dir, int count, void *ptr
struct xfrm_userpolicy_info *p;
struct sk_buff *in_skb = sp->in_skb;
struct sk_buff *skb = sp->out_skb;
+ struct xfrm_translator *xtr;
struct nlmsghdr *nlh;
int err;
@@ -1787,6 +1824,18 @@ static int dump_one_policy(struct xfrm_policy *xp, int dir, int count, void *ptr
return err;
}
nlmsg_end(skb, nlh);
+
+ xtr = xfrm_get_translator();
+ if (xtr) {
+ err = xtr->alloc_compat(skb, nlh);
+
+ xfrm_put_translator(xtr);
+ if (err) {
+ nlmsg_cancel(skb, nlh);
+ return err;
+ }
+ }
+
return 0;
}
@@ -2528,7 +2577,7 @@ static int xfrm_send_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
#define XMSGSIZE(type) sizeof(struct type)
-static const int xfrm_msg_min[XFRM_NR_MSGTYPES] = {
+const int xfrm_msg_min[XFRM_NR_MSGTYPES] = {
[XFRM_MSG_NEWSA - XFRM_MSG_BASE] = XMSGSIZE(xfrm_usersa_info),
[XFRM_MSG_DELSA - XFRM_MSG_BASE] = XMSGSIZE(xfrm_usersa_id),
[XFRM_MSG_GETSA - XFRM_MSG_BASE] = XMSGSIZE(xfrm_usersa_id),
@@ -2551,10 +2600,11 @@ static const int xfrm_msg_min[XFRM_NR_MSGTYPES] = {
[XFRM_MSG_NEWSPDINFO - XFRM_MSG_BASE] = sizeof(u32),
[XFRM_MSG_GETSPDINFO - XFRM_MSG_BASE] = sizeof(u32),
};
+EXPORT_SYMBOL_GPL(xfrm_msg_min);
#undef XMSGSIZE
-static const struct nla_policy xfrma_policy[XFRMA_MAX+1] = {
+const struct nla_policy xfrma_policy[XFRMA_MAX+1] = {
[XFRMA_SA] = { .len = sizeof(struct xfrm_usersa_info)},
[XFRMA_POLICY] = { .len = sizeof(struct xfrm_userpolicy_info)},
[XFRMA_LASTUSED] = { .type = NLA_U64},
@@ -2586,6 +2636,7 @@ static const struct nla_policy xfrma_policy[XFRMA_MAX+1] = {
[XFRMA_SET_MARK_MASK] = { .type = NLA_U32 },
[XFRMA_IF_ID] = { .type = NLA_U32 },
};
+EXPORT_SYMBOL_GPL(xfrma_policy);
static const struct nla_policy xfrma_spd_policy[XFRMA_SPD_MAX+1] = {
[XFRMA_SPD_IPV4_HTHRESH] = { .len = sizeof(struct xfrmu_spdhthresh) },
@@ -2635,13 +2686,9 @@ static int xfrm_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh,
struct net *net = sock_net(skb->sk);
struct nlattr *attrs[XFRMA_MAX+1];
const struct xfrm_link *link;
+ struct nlmsghdr *nlh64 = NULL;
int type, err;
-#ifdef CONFIG_COMPAT
- if (in_compat_syscall())
- return -EOPNOTSUPP;
-#endif
-
type = nlh->nlmsg_type;
if (type > XFRM_MSG_MAX)
return -EINVAL;
@@ -2653,32 +2700,58 @@ static int xfrm_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh,
if (!netlink_net_capable(skb, CAP_NET_ADMIN))
return -EPERM;
+ /* Use the 64-bit / untranslated format on Android, even for compat */
+ if (!IS_ENABLED(CONFIG_ANDROID) || IS_ENABLED(CONFIG_XFRM_USER_COMPAT)) {
+ if (in_compat_syscall()) {
+ struct xfrm_translator *xtr = xfrm_get_translator();
+
+ if (!xtr)
+ return -EOPNOTSUPP;
+
+ nlh64 = xtr->rcv_msg_compat(nlh, link->nla_max,
+ link->nla_pol, extack);
+ xfrm_put_translator(xtr);
+ if (IS_ERR(nlh64))
+ return PTR_ERR(nlh64);
+ if (nlh64)
+ nlh = nlh64;
+ }
+ }
+
if ((type == (XFRM_MSG_GETSA - XFRM_MSG_BASE) ||
type == (XFRM_MSG_GETPOLICY - XFRM_MSG_BASE)) &&
(nlh->nlmsg_flags & NLM_F_DUMP)) {
- if (link->dump == NULL)
- return -EINVAL;
+ struct netlink_dump_control c = {
+ .start = link->start,
+ .dump = link->dump,
+ .done = link->done,
+ };
- {
- struct netlink_dump_control c = {
- .start = link->start,
- .dump = link->dump,
- .done = link->done,
- };
- return netlink_dump_start(net->xfrm.nlsk, skb, nlh, &c);
+ if (link->dump == NULL) {
+ err = -EINVAL;
+ goto err;
}
+
+ err = netlink_dump_start(net->xfrm.nlsk, skb, nlh, &c);
+ goto err;
}
err = nlmsg_parse(nlh, xfrm_msg_min[type], attrs,
link->nla_max ? : XFRMA_MAX,
link->nla_pol ? : xfrma_policy, extack);
if (err < 0)
- return err;
+ goto err;
- if (link->doit == NULL)
- return -EINVAL;
+ if (link->doit == NULL) {
+ err = -EINVAL;
+ goto err;
+ }
- return link->doit(skb, nlh, attrs);
+ err = link->doit(skb, nlh, attrs);
+
+err:
+ kvfree(nlh64);
+ return err;
}
static void xfrm_netlink_rcv(struct sk_buff *skb)
diff --git a/samples/hw_breakpoint/data_breakpoint.c b/samples/hw_breakpoint/data_breakpoint.c
index ef7f322..3739481 100644
--- a/samples/hw_breakpoint/data_breakpoint.c
+++ b/samples/hw_breakpoint/data_breakpoint.c
@@ -36,7 +36,7 @@
struct perf_event * __percpu *sample_hbp;
-static char ksym_name[KSYM_NAME_LEN] = "pid_max";
+static char ksym_name[KSYM_NAME_LEN] = "jiffies";
module_param_string(ksym, ksym_name, KSYM_NAME_LEN, S_IRUGO);
MODULE_PARM_DESC(ksym, "Kernel symbol to monitor; this module will report any"
" write operations on the kernel symbol");
@@ -54,11 +54,15 @@ static int __init hw_break_module_init(void)
{
int ret;
struct perf_event_attr attr;
+ void *addr = __symbol_get(ksym_name);
+
+ if (!addr)
+ return -ENXIO;
hw_breakpoint_init(&attr);
- attr.bp_addr = kallsyms_lookup_name(ksym_name);
+ attr.bp_addr = (unsigned long)addr;
attr.bp_len = HW_BREAKPOINT_LEN_4;
- attr.bp_type = HW_BREAKPOINT_W | HW_BREAKPOINT_R;
+ attr.bp_type = HW_BREAKPOINT_W;
sample_hbp = register_wide_hw_breakpoint(&attr, sample_hbp_handler, NULL);
if (IS_ERR((void __force *)sample_hbp)) {
@@ -79,6 +83,7 @@ static int __init hw_break_module_init(void)
static void __exit hw_break_module_exit(void)
{
unregister_wide_hw_breakpoint(sample_hbp);
+ symbol_put(ksym_name);
printk(KERN_INFO "HW Breakpoint for %s write uninstalled\n", ksym_name);
}
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index c830750..3f566c1 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -290,7 +290,7 @@
$(CPP) $(call flags_nodeps,a_flags) -D__KSYM_DEPS__ $< ;; \
boot*|build*|cpp_its_S|*cpp_lds_S|dtc|host*|vdso*) : ;; \
*) echo "Don't know how to preprocess $(1)" >&2; false ;; \
- esac | tr ";" "\n" | sed -n 's/^.*=== __KSYM_\(.*\) ===.*$$/_\1/p'
+ esac | grep -F '=== __KSYM_' | tr ";" "\n" | sed -n 's/^.*=== __KSYM_\(.*\) ===.*$$/_\1/p'
cmd_and_fixdep = \
$(echo-cmd) $(cmd_$(1)); \
diff --git a/scripts/Makefile b/scripts/Makefile
index 3ce4981..51403ca 100644
--- a/scripts/Makefile
+++ b/scripts/Makefile
@@ -36,6 +36,8 @@
# The following hostprogs-y programs are only build on demand
hostprogs-y += unifdef
+extra-$(CONFIG_LTO_CLANG) += module-lto.lds
+
# These targets are used internally to avoid "is up to date" messages
PHONY += build_unifdef
build_unifdef: $(obj)/unifdef
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 64fac0a..e510a1f 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -185,6 +185,23 @@
cmd_cc_o_c = $(CC) $(c_flags) -c -o $(@D)/.tmp_$(@F) $<
+ifdef CONFIG_LTO_CLANG
+# Generate .o.symversions files for each .o with exported symbols, and link these
+# to the kernel and/or modules at the end.
+cmd_modversions_c = \
+ if $(OBJDUMP) -h $(@D)/.tmp_$(@F) >/dev/null 2>/dev/null; then \
+ if $(OBJDUMP) -h $(@D)/.tmp_$(@F) | grep -q __ksymtab; then \
+ $(call cmd_gensymtypes_c,$(KBUILD_SYMTYPES),$(@:.o=.symtypes)) \
+ > $(@D)/$(@F).symversions; \
+ fi; \
+ else \
+ if $(LLVM_NM) $(@D)/.tmp_$(@F) | grep -q __ksymtab; then \
+ $(call cmd_gensymtypes_c,$(KBUILD_SYMTYPES),$(@:.o=.symtypes)) \
+ > $(@D)/$(@F).symversions; \
+ fi; \
+ fi; \
+ mv -f $(@D)/.tmp_$(@F) $@;
+else
cmd_modversions_c = \
if $(OBJDUMP) -h $(@D)/.tmp_$(@F) | grep -q __ksymtab; then \
$(call cmd_gensymtypes_c,$(KBUILD_SYMTYPES),$(@:.o=.symtypes)) \
@@ -197,6 +214,7 @@
mv -f $(@D)/.tmp_$(@F) $@; \
fi;
endif
+endif
ifdef CONFIG_FTRACE_MCOUNT_RECORD
ifndef CC_USING_RECORD_MCOUNT
@@ -205,6 +223,12 @@
ifeq ("$(origin RECORDMCOUNT_WARN)", "command line")
RECORDMCOUNT_FLAGS = -w
endif
+
+ifdef CONFIG_LTO_CLANG
+# With LTO, we postpone running recordmcount until after the LTO link step, so
+# let's export the parameters for the link script.
+export RECORDMCOUNT_FLAGS
+else
# Due to recursion, we must skip empty.o.
# The empty.o file is created in the make process in order to determine
# the target endianness and word size. It is made before all other C
@@ -213,22 +237,28 @@
if [ $(@) != "scripts/mod/empty.o" ]; then \
$(objtree)/scripts/recordmcount $(RECORDMCOUNT_FLAGS) "$(@)"; \
fi;
+endif
+
recordmcount_source := $(srctree)/scripts/recordmcount.c \
$(srctree)/scripts/recordmcount.h
-else
+else # !BUILD_C_RECORDMCOUNT
sub_cmd_record_mcount = set -e ; perl $(srctree)/scripts/recordmcount.pl "$(ARCH)" \
"$(if $(CONFIG_CPU_BIG_ENDIAN),big,little)" \
"$(if $(CONFIG_64BIT),64,32)" \
"$(OBJDUMP)" "$(OBJCOPY)" "$(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS)" \
"$(LD) $(KBUILD_LDFLAGS)" "$(NM)" "$(RM)" "$(MV)" \
"$(if $(part-of-module),1,0)" "$(@)";
+
recordmcount_source := $(srctree)/scripts/recordmcount.pl
endif # BUILD_C_RECORDMCOUNT
+
+ifndef CONFIG_LTO_CLANG
cmd_record_mcount = \
if [ "$(findstring $(CC_FLAGS_FTRACE),$(_c_flags))" = \
"$(CC_FLAGS_FTRACE)" ]; then \
$(sub_cmd_record_mcount) \
fi;
+endif # CONFIG_LTO_CLANG
endif # CC_USING_RECORD_MCOUNT
endif # CONFIG_FTRACE_MCOUNT_RECORD
@@ -429,6 +459,25 @@
# To build objects in subdirs, we need to descend into the directories
$(sort $(subdir-obj-y)): $(subdir-ym) ;
+ifdef CONFIG_LTO_CLANG
+ ifdef CONFIG_MODVERSIONS
+ # combine symversions for later processing
+ update_lto_symversions = \
+ rm -f $@.symversions; \
+ for i in $(foreach n, \
+ $(filter-out FORCE,$^), \
+ $(if $(wildcard $(n).symversions),$(n))); do \
+ cat $$i.symversions >> $@.symversions; \
+ done;
+ endif
+ # rebuild the symbol table with llvm-ar to include IR files
+ update_lto_symtable = ; \
+ mv -f $@ $@.tmp; \
+ $(LLVM_AR) rcsT$(KBUILD_ARFLAGS) $@ \
+ $$($(AR) t $@.tmp); \
+ rm -f $@.tmp
+endif
+
#
# Rule to compile a set of .o files into one .o file
#
@@ -439,7 +488,8 @@
# scripts/link-vmlinux.sh builds an aggregate built-in.a with a symbol
# table and index.
quiet_cmd_ar_builtin = AR $@
- cmd_ar_builtin = rm -f $@; \
+ cmd_ar_builtin = $(update_lto_symversions) \
+ rm -f $@; \
$(AR) rcSTP$(KBUILD_ARFLAGS) $@ $(filter $(real-obj-y), $^)
$(builtin-target): $(real-obj-y) FORCE
@@ -468,7 +518,11 @@
quiet_cmd_link_l_target = AR $@
# lib target archives do get a symbol table and index
-cmd_link_l_target = rm -f $@; $(AR) rcsTP$(KBUILD_ARFLAGS) $@ $(lib-y)
+cmd_link_l_target = \
+ $(update_lto_symversions) \
+ rm -f $@; \
+ $(AR) rcsTP$(KBUILD_ARFLAGS) $@ $(lib-y) \
+ $(update_lto_symtable)
$(lib-target): $(lib-y) FORCE
$(call if_changed,link_l_target)
@@ -479,13 +533,34 @@
ksyms-lds = $(dot-target).lds
quiet_cmd_export_list = EXPORTS $@
-cmd_export_list = $(OBJDUMP) -h $< | \
- sed -ne '/___ksymtab/s/.*+\([^ ]*\).*/EXTERN(\1)/p' >$(ksyms-lds);\
- rm -f $(dummy-object);\
+filter_export_list = sed -ne '/___ksymtab/s/.*+\([^ ]*\).*/EXTERN(\1)/p'
+link_export_list = rm -f $(dummy-object); \
echo | $(CC) $(a_flags) -c -o $(dummy-object) -x assembler -;\
$(LD) $(ld_flags) -r -o $@ -T $(ksyms-lds) $(dummy-object);\
rm $(dummy-object) $(ksyms-lds)
+ifdef CONFIG_LTO_CLANG
+# objdump doesn't understand IR files and llvm-nm doesn't support archives,
+# so we'll walk through each file in the archive separately
+cmd_export_list = \
+ rm -f $(ksyms-lds); \
+ for o in $$($(AR) t $<); do \
+ if $(OBJDUMP) -h $$o >/dev/null 2>/dev/null; then \
+ $(OBJDUMP) -h $$o | \
+ $(filter_export_list) \
+ >>$(ksyms-lds); \
+ else \
+ $(LLVM_NM) $$o | \
+ $(filter_export_list) \
+ >>$(ksyms-lds); \
+ fi; \
+ done; \
+ $(link_export_list)
+else
+cmd_export_list = $(OBJDUMP) -h $< | $(filter_export_list) >$(ksyms-lds); \
+ $(link_export_list)
+endif
+
$(obj)/lib-ksyms.o: $(lib-target) FORCE
$(call if_changed,export_list)
@@ -509,13 +584,31 @@
$($(subst $(obj)/,,$(@:.o=-y))) \
$($(subst $(obj)/,,$(@:.o=-m)))), $^)
+cmd_link_multi-link = $(LD) $(ld_flags) -r -o $@ $(link_multi_deps) $(cmd_secanalysis)
+
+quiet_cmd_link_multi-y = AR $@
+cmd_link_multi-y = $(update_lto_symversions) \
+ rm -f $@; $(AR) rcSTP$(KBUILD_ARFLAGS) $@ $(link_multi_deps) \
+ $(update_lto_symtable)
+
quiet_cmd_link_multi-m = LD [M] $@
-cmd_link_multi-m = $(LD) $(ld_flags) -r -o $@ $(link_multi_deps) $(cmd_secanalysis)
+
+ifdef CONFIG_LTO_CLANG
+ # don't compile IR until needed
+ cmd_link_multi-m = $(cmd_link_multi-y)
+else
+ cmd_link_multi-m = $(cmd_link_multi-link)
+endif
+
+$(multi-used-y): FORCE
+ $(call if_changed,link_multi-y)
$(multi-used-m): FORCE
$(call if_changed,link_multi-m)
@{ echo $(@:.o=.ko); echo $(link_multi_deps); \
$(cmd_undef_syms); } > $(MODVERDIR)/$(@F:.o=.mod)
+
+$(call multi_depend, $(multi-used-y), .o, -objs -y)
$(call multi_depend, $(multi-used-m), .o, -objs -y -m)
targets += $(multi-used-m)
diff --git a/scripts/Makefile.kasan b/scripts/Makefile.kasan
index 69552a3..6410bd2 100644
--- a/scripts/Makefile.kasan
+++ b/scripts/Makefile.kasan
@@ -1,5 +1,6 @@
# SPDX-License-Identifier: GPL-2.0
-ifdef CONFIG_KASAN
+ifdef CONFIG_KASAN_GENERIC
+
ifdef CONFIG_KASAN_INLINE
call_threshold := 10000
else
@@ -12,36 +13,39 @@
cc-param = $(call cc-option, -mllvm -$(1), $(call cc-option, --param $(1)))
-ifeq ($(call cc-option, $(CFLAGS_KASAN_MINIMAL) -Werror),)
- ifneq ($(CONFIG_COMPILE_TEST),y)
- $(warning Cannot use CONFIG_KASAN: \
- -fsanitize=kernel-address is not supported by compiler)
- endif
-else
- # -fasan-shadow-offset fails without -fsanitize
- CFLAGS_KASAN_SHADOW := $(call cc-option, -fsanitize=kernel-address \
+# -fasan-shadow-offset fails without -fsanitize
+CFLAGS_KASAN_SHADOW := $(call cc-option, -fsanitize=kernel-address \
-fasan-shadow-offset=$(KASAN_SHADOW_OFFSET), \
$(call cc-option, -fsanitize=kernel-address \
-mllvm -asan-mapping-offset=$(KASAN_SHADOW_OFFSET)))
- ifeq ($(strip $(CFLAGS_KASAN_SHADOW)),)
- CFLAGS_KASAN := $(CFLAGS_KASAN_MINIMAL)
- else
- # Now add all the compiler specific options that are valid standalone
- CFLAGS_KASAN := $(CFLAGS_KASAN_SHADOW) \
- $(call cc-param,asan-globals=1) \
- $(call cc-param,asan-instrumentation-with-call-threshold=$(call_threshold)) \
- $(call cc-param,asan-stack=1) \
- $(call cc-param,asan-use-after-scope=1) \
- $(call cc-param,asan-instrument-allocas=1)
- endif
-
+ifeq ($(strip $(CFLAGS_KASAN_SHADOW)),)
+ CFLAGS_KASAN := $(CFLAGS_KASAN_MINIMAL)
+else
+ # Now add all the compiler specific options that are valid standalone
+ CFLAGS_KASAN := $(CFLAGS_KASAN_SHADOW) \
+ $(call cc-param,asan-globals=1) \
+ $(call cc-param,asan-instrumentation-with-call-threshold=$(call_threshold)) \
+ $(call cc-param,asan-stack=$(CONFIG_KASAN_STACK)) \
+ $(call cc-param,asan-instrument-allocas=1)
endif
-ifdef CONFIG_KASAN_EXTRA
-CFLAGS_KASAN += $(call cc-option, -fsanitize-address-use-after-scope)
+endif # CONFIG_KASAN_GENERIC
+
+ifdef CONFIG_KASAN_SW_TAGS
+
+ifdef CONFIG_KASAN_INLINE
+ instrumentation_flags := -mllvm -hwasan-mapping-offset=$(KASAN_SHADOW_OFFSET)
+else
+ instrumentation_flags := -mllvm -hwasan-instrument-with-calls=1
endif
+CFLAGS_KASAN := -fsanitize=kernel-hwaddress \
+ -mllvm -hwasan-instrument-stack=0 \
+ $(instrumentation_flags)
+
+endif # CONFIG_KASAN_SW_TAGS
+
+ifdef CONFIG_KASAN
CFLAGS_KASAN_NOSANITIZE := -fno-builtin
-
endif
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index a232741..6179e6b 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -335,7 +335,8 @@
quiet_cmd_lz4 = LZ4 $@
cmd_lz4 = (cat $(filter-out FORCE,$^) | \
- lz4c -l -c1 stdin stdout && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
+ lz4 -l -12 --favor-decSpeed stdin stdout && \
+ $(call size_append, $(filter-out FORCE,$^))) > $@ || \
(rm -f $@ ; false)
# U-Boot mkimage
diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost
index 51884c7..15dd58a 100644
--- a/scripts/Makefile.modpost
+++ b/scripts/Makefile.modpost
@@ -83,12 +83,28 @@
MODPOST_OPT=$(subst -i,-n,$(filter -i,$(MAKEFLAGS)))
+# If CONFIG_LTO_CLANG is enabled, .o files are either LLVM IR, or empty, so we
+# need to link them into actual objects before passing them to modpost
+modpost-ext = $(if $(CONFIG_LTO_CLANG),.lto,)
+
+ifdef CONFIG_LTO_CLANG
+quiet_cmd_cc_lto_link_modules = LD [M] $@
+cmd_cc_lto_link_modules = \
+ $(LD) $(ld_flags) -r -o $(@) \
+ $(shell [ -s $(@:$(modpost-ext).o=.o.symversions) ] && \
+ echo -T $(@:$(modpost-ext).o=.o.symversions)) \
+ --whole-archive $(filter-out FORCE,$^)
+
+$(modules:.ko=$(modpost-ext).o): %$(modpost-ext).o: %.o FORCE
+ $(call if_changed,cc_lto_link_modules)
+endif
+
# We can go over command line length here, so be careful.
quiet_cmd_modpost = MODPOST $(words $(filter-out vmlinux FORCE, $^)) modules
- cmd_modpost = $(MODLISTCMD) | sed 's/\.ko$$/.o/' | $(modpost) $(MODPOST_OPT) -s -T -
+ cmd_modpost = $(MODLISTCMD) | sed 's/\.ko$$/$(modpost-ext)\.o/' | $(modpost) $(MODPOST_OPT) -s -T -
PHONY += __modpost
-__modpost: $(modules:.ko=.o) FORCE
+__modpost: $(modules:.ko=$(modpost-ext).o) FORCE
$(call cmd,modpost) $(wildcard vmlinux)
quiet_cmd_kernel-mod = MODPOST $@
@@ -100,7 +116,6 @@
# Declare generated files as targets for modpost
$(modules:.ko=.mod.c): __modpost ;
-
# Step 5), compile all *.mod.c files
# modname is set to make c_flags define KBUILD_MODNAME
@@ -119,13 +134,28 @@
# Step 6), final link of the modules with optional arch pass after final link
quiet_cmd_ld_ko_o = LD [M] $@
+
+ifdef CONFIG_LTO_CLANG
+ cmd_ld_ko_o = \
+ $(LD) -r $(LDFLAGS) \
+ $(KBUILD_LDFLAGS_MODULE) $(LDFLAGS_MODULE) \
+ $(shell [ -s $(@:.ko=.o.symversions) ] && \
+ echo -T $(@:.ko=.o.symversions)) \
+ -o $@ --whole-archive \
+ $(filter-out FORCE,$(^:$(modpost-ext).o=.o))
+
+ ifdef CONFIG_FTRACE_MCOUNT_RECORD
+ cmd_ld_ko_o += ; $(objtree)/scripts/recordmcount $(RECORDMCOUNT_FLAGS) $@
+ endif
+else
cmd_ld_ko_o = \
$(LD) -r $(KBUILD_LDFLAGS) \
$(KBUILD_LDFLAGS_MODULE) $(LDFLAGS_MODULE) \
-o $@ $(filter-out FORCE,$^) ; \
$(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
+endif
-$(modules): %.ko :%.o %.mod.o FORCE
+$(modules): %.ko: %$(modpost-ext).o %.mod.o FORCE
+$(call if_changed,ld_ko_o)
targets += $(modules)
diff --git a/scripts/adjust_autoksyms.sh b/scripts/adjust_autoksyms.sh
index 6e6d639..4d1adf1 100755
--- a/scripts/adjust_autoksyms.sh
+++ b/scripts/adjust_autoksyms.sh
@@ -1,6 +1,6 @@
#!/bin/sh
-# Script to create/update include/generated/autoksyms.h and dependency files
+# Script to update include/generated/autoksyms.h and dependency files
#
# Copyright: (C) 2016 Linaro Limited
# Created by: Nicolas Pitre, January 2016
@@ -9,9 +9,7 @@
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
-# Create/update the include/generated/autoksyms.h file from the list
-# of all module's needed symbols as recorded on the third line of
-# .tmp_versions/*.mod files.
+# Update the include/generated/autoksyms.h file.
#
# For each symbol being added or removed, the corresponding dependency
# file's timestamp is updated to force a rebuild of the affected source
@@ -39,35 +37,10 @@
esac
# We need access to CONFIG_ symbols
-case "${KCONFIG_CONFIG}" in
-*/*)
- . "${KCONFIG_CONFIG}"
- ;;
-*)
- # Force using a file from the current directory
- . "./${KCONFIG_CONFIG}"
-esac
+. include/config/auto.conf
-# Generate a new ksym list file with symbols needed by the current
-# set of modules.
-cat > "$new_ksyms_file" << EOT
-/*
- * Automatically generated file; DO NOT EDIT.
- */
-
-EOT
-[ "$(ls -A "$MODVERDIR")" ] &&
-for mod in "$MODVERDIR"/*.mod; do
- sed -n -e '3{s/ /\n/g;/^$/!p;}' "$mod"
-done | sort -u |
-while read sym; do
- echo "#define __KSYM_${sym} 1"
-done >> "$new_ksyms_file"
-
-# Special case for modversions (see modpost.c)
-if [ -n "$CONFIG_MODVERSIONS" ]; then
- echo "#define __KSYM_module_layout 1" >> "$new_ksyms_file"
-fi
+# Generate a new symbol list file
+$CONFIG_SHELL $srctree/scripts/gen_autoksyms.sh "$new_ksyms_file"
# Extract changes between old and new list and touch corresponding
# dependency files.
diff --git a/scripts/gcc-plugins/Kconfig b/scripts/gcc-plugins/Kconfig
index cb0c889..21f4b68 100644
--- a/scripts/gcc-plugins/Kconfig
+++ b/scripts/gcc-plugins/Kconfig
@@ -13,17 +13,19 @@
An arch should select this symbol if it supports building with
GCC plugins.
-menuconfig GCC_PLUGINS
- bool "GCC plugins"
+config GCC_PLUGINS
+ bool
depends on HAVE_GCC_PLUGINS
depends on PLUGIN_HOSTCC != ""
+ default y
help
GCC plugins are loadable modules that provide extra features to the
compiler. They are useful for runtime instrumentation and static analysis.
See Documentation/gcc-plugins.txt for details.
-if GCC_PLUGINS
+menu "GCC plugins"
+ depends on GCC_PLUGINS
config GCC_PLUGIN_CYC_COMPLEXITY
bool "Compute the cyclomatic complexity of a function" if EXPERT
@@ -66,39 +68,6 @@
* https://grsecurity.net/
* https://pax.grsecurity.net/
-config GCC_PLUGIN_STRUCTLEAK
- bool "Force initialization of variables containing userspace addresses"
- # Currently STRUCTLEAK inserts initialization out of live scope of
- # variables from KASAN point of view. This leads to KASAN false
- # positive reports. Prohibit this combination for now.
- depends on !KASAN_EXTRA
- help
- This plugin zero-initializes any structures containing a
- __user attribute. This can prevent some classes of information
- exposures.
-
- This plugin was ported from grsecurity/PaX. More information at:
- * https://grsecurity.net/
- * https://pax.grsecurity.net/
-
-config GCC_PLUGIN_STRUCTLEAK_BYREF_ALL
- bool "Force initialize all struct type variables passed by reference"
- depends on GCC_PLUGIN_STRUCTLEAK
- depends on !COMPILE_TEST
- help
- Zero initialize any struct type local variable that may be passed by
- reference without having been initialized.
-
-config GCC_PLUGIN_STRUCTLEAK_VERBOSE
- bool "Report forcefully initialized variables"
- depends on GCC_PLUGIN_STRUCTLEAK
- depends on !COMPILE_TEST # too noisy
- help
- This option will cause a warning to be printed each time the
- structleak plugin finds a variable it thinks needs to be
- initialized. Since not all existing initializers are detected
- by the plugin, this can produce false positive warnings.
-
config GCC_PLUGIN_RANDSTRUCT
bool "Randomize layout of sensitive kernel structures"
select MODVERSIONS if MODULES
@@ -139,4 +108,4 @@
in structures. This reduces the performance hit of RANDSTRUCT
at the cost of weakened randomization.
-endif
+endmenu
diff --git a/scripts/gen_autoksyms.sh b/scripts/gen_autoksyms.sh
new file mode 100755
index 0000000..846dde7
--- /dev/null
+++ b/scripts/gen_autoksyms.sh
@@ -0,0 +1,52 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-only
+
+# Create an autoksyms.h header file from the list of all module's needed symbols
+# as recorded on the third line of *.mod files and the user-provided symbol
+# whitelist.
+
+set -e
+
+output_file="$1"
+
+# Use "make V=1" to debug this script.
+case "$KBUILD_VERBOSE" in
+*1*)
+ set -x
+ ;;
+esac
+
+# We need access to CONFIG_ symbols
+. include/config/auto.conf
+
+ksym_wl=/dev/null
+if [ -n "$CONFIG_UNUSED_KSYMS_WHITELIST" ]; then
+ # Use 'eval' to expand the whitelist path and check if it is relative
+ eval ksym_wl="$CONFIG_UNUSED_KSYMS_WHITELIST"
+ [ "${ksym_wl}" != "${ksym_wl#/}" ] || ksym_wl="$abs_srctree/$ksym_wl"
+ if [ ! -f "$ksym_wl" ] || [ ! -r "$ksym_wl" ]; then
+ echo "ERROR: '$ksym_wl' whitelist file not found" >&2
+ exit 1
+ fi
+fi
+
+# Generate a new ksym list file with symbols needed by the current
+# set of modules.
+cat > "$output_file" << EOT
+/*
+ * Automatically generated file; DO NOT EDIT.
+ */
+
+EOT
+
+for mod in "$MODVERDIR"/*.mod; do
+ [ -f "$mod" ] && sed -n -e '3{s/ /\n/g;/^$/!p;}' "$mod"
+done | cat - "$ksym_wl" | sort -u |
+while read sym; do
+ echo "#define __KSYM_${sym} 1"
+done >> "$output_file"
+
+# Special case for modversions (see modpost.c)
+if [ -n "$CONFIG_MODVERSIONS" ]; then
+ echo "#define __KSYM_module_layout 1" >> "$output_file"
+fi
diff --git a/scripts/generate_initcall_order.pl b/scripts/generate_initcall_order.pl
new file mode 100755
index 0000000..bbae939
--- /dev/null
+++ b/scripts/generate_initcall_order.pl
@@ -0,0 +1,250 @@
+#!/usr/bin/env perl
+# SPDX-License-Identifier: GPL-2.0
+#
+# Generates a linker script that specifies the correct initcall order.
+#
+# Copyright (C) 2019 Google LLC
+
+use strict;
+use warnings;
+use IO::Handle;
+
+my $nm = $ENV{'LLVM_NM'} || "llvm-nm";
+my $ar = $ENV{'AR'} || "llvm-ar";
+my $objtree = $ENV{'objtree'} || ".";
+
+## list of all object files to process, in link order
+my @objects;
+## currently active child processes
+my $jobs = {}; # child process pid -> file handle
+## results from child processes
+my $results = {}; # object index -> { level, function }
+
+## reads _NPROCESSORS_ONLN to determine the number of processes to start
+sub get_online_processors {
+ open(my $fh, "getconf _NPROCESSORS_ONLN 2>/dev/null |")
+ or die "$0: failed to execute getconf: $!";
+ my $procs = <$fh>;
+ close($fh);
+
+ if (!($procs =~ /^\d+$/)) {
+ return 1;
+ }
+
+ return int($procs);
+}
+
+## finds initcalls defined in an object file, parses level and function name,
+## and prints it out to the parent process
+sub find_initcalls {
+ my ($object) = @_;
+
+ die "$0: object file $object doesn't exist?" if (! -f $object);
+
+ open(my $fh, "\"$nm\" --just-symbol-name --defined-only \"$object\" 2>/dev/null |")
+ or die "$0: failed to execute \"$nm\": $!";
+
+ my $initcalls = {};
+
+ while (<$fh>) {
+ chomp;
+
+ my ($counter, $line, $symbol) = $_ =~ /^__initcall_(\d+)_(\d+)_(.*)$/;
+
+ if (!defined($counter) || !defined($line) || !defined($symbol)) {
+ next;
+ }
+
+ my ($function, $level) = $symbol =~
+ /^(.*)((early|rootfs|con|security|[0-9])s?)$/;
+
+ die "$0: duplicate initcall counter value in object $object: $_"
+ if exists($initcalls->{$counter});
+
+ $initcalls->{$counter} = {
+ 'level' => $level,
+ 'line' => $line,
+ 'function' => $function
+ };
+ }
+
+ close($fh);
+
+ # sort initcalls in each object file numerically by the counter value
+ # to ensure they are in the order they were defined
+ foreach my $counter (sort { $a <=> $b } keys(%{$initcalls})) {
+ print $initcalls->{$counter}->{"level"} . " " .
+ $counter . " " .
+ $initcalls->{$counter}->{"line"} . " " .
+ $initcalls->{$counter}->{"function"} . "\n";
+ }
+}
+
+## waits for any child process to complete, reads the results, and adds them to
+## the $results array for later processing
+sub wait_for_results {
+ my $pid = wait();
+ if ($pid > 0) {
+ my $fh = $jobs->{$pid};
+
+ # the child process prints out results in the following format:
+ # line 1: <object file index>
+ # line 2..n: <level> <counter> <line> <function>
+
+ my $index = <$fh>;
+ chomp($index);
+
+ if (!($index =~ /^\d+$/)) {
+ die "$0: child $pid returned an invalid index: $index";
+ }
+ $index = int($index);
+
+ while (<$fh>) {
+ chomp;
+ my ($level, $counter, $line, $function) = $_ =~
+ /^([^\ ]+)\ (\d+)\ (\d+)\ (.*)$/;
+
+ if (!defined($level) ||
+ !defined($counter) ||
+ !defined($line) ||
+ !defined($function)) {
+ die "$0: child $pid returned invalid data";
+ }
+
+ if (!exists($results->{$index})) {
+ $results->{$index} = [];
+ }
+
+ push (@{$results->{$index}}, {
+ 'level' => $level,
+ 'counter' => $counter,
+ 'line' => $line,
+ 'function' => $function
+ });
+ }
+
+ close($fh);
+ delete($jobs->{$pid});
+ }
+}
+
+## launches child processes to find initcalls from the object files, waits for
+## each process to complete and collects the results
+sub process_objects {
+ my $index = 0; # link order index of the object file
+ my $njobs = get_online_processors();
+
+ while (scalar(@objects) > 0) {
+ my $object = shift(@objects);
+
+ # fork a child process and read it's stdout
+ my $pid = open(my $fh, '-|');
+
+ if (!defined($pid)) {
+ die "$0: failed to fork: $!";
+ } elsif ($pid) {
+ # save the child process pid and the file handle
+ $jobs->{$pid} = $fh;
+ } else {
+ STDOUT->autoflush(1);
+ print "$index\n";
+ find_initcalls("$objtree/$object");
+ exit;
+ }
+
+ $index++;
+
+ # if we reached the maximum number of processes, wait for one
+ # to complete before launching new ones
+ if (scalar(keys(%{$jobs})) >= $njobs && scalar(@objects) > 0) {
+ wait_for_results();
+ }
+ }
+
+ # wait for the remaining children to complete
+ while (scalar(keys(%{$jobs})) > 0) {
+ wait_for_results();
+ }
+}
+
+## gets a list of actual object files from thin archives, and adds them to
+## @objects in link order
+sub find_objects {
+ while (my $file = shift(@ARGV)) {
+ my $pid = open (my $fh, "\"$ar\" t \"$file\" 2>/dev/null |")
+ or die "$0: failed to execute $ar: $!";
+
+ my @output;
+
+ while (<$fh>) {
+ chomp;
+ push(@output, $_);
+ }
+
+ close($fh);
+
+ # if $ar failed, assume we have an object file
+ if ($? != 0) {
+ push(@objects, $file);
+ next;
+ }
+
+ # if $ar succeeded, read the list of object files
+ foreach (@output) {
+ push(@objects, $_);
+ }
+ }
+}
+
+## START
+find_objects();
+process_objects();
+
+## process results and add them to $sections in the correct order
+my $sections = {};
+
+foreach my $index (sort { $a <=> $b } keys(%{$results})) {
+ foreach my $result (@{$results->{$index}}) {
+ my $level = $result->{'level'};
+
+ if (!exists($sections->{$level})) {
+ $sections->{$level} = [];
+ }
+
+ my $fsname = $result->{'counter'} . '_' .
+ $result->{'line'} . '_' .
+ $result->{'function'};
+
+ push(@{$sections->{$level}}, $fsname);
+ }
+}
+
+if (!keys(%{$sections})) {
+ exit(0); # no initcalls...?
+}
+
+## print out a linker script that defines the order of initcalls for each
+## level
+print "SECTIONS {\n";
+
+foreach my $level (sort(keys(%{$sections}))) {
+ my $section;
+
+ if ($level eq 'con') {
+ $section = '.con_initcall.init';
+ } elsif ($level eq 'security') {
+ $section = '.security_initcall.init';
+ } else {
+ $section = ".initcall${level}.init";
+ }
+
+ print "\t${section} : {\n";
+
+ foreach my $fsname (@{$sections->{$level}}) {
+ print "\t\t*(${section}..${fsname}) ;\n"
+ }
+
+ print "\t}\n";
+}
+
+print "}\n";
diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index c8cf453..c67daa7 100755
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -60,6 +60,39 @@
${AR} rcsTP${KBUILD_ARFLAGS} built-in.a \
${KBUILD_VMLINUX_INIT} \
${KBUILD_VMLINUX_MAIN}
+
+ # rebuild with llvm-ar to update the symbol table
+ if [ -n "${CONFIG_LTO_CLANG}" ]; then
+ mv -f built-in.a built-in.a.tmp
+ ${LLVM_AR} rcsT${KBUILD_ARFLAGS} built-in.a $(${AR} t built-in.a.tmp)
+ rm -f built-in.a.tmp
+ fi
+}
+
+# If CONFIG_LTO_CLANG is selected, generate a linker script to ensure correct
+# ordering of initcalls, and with CONFIG_MODVERSIONS also enabled, collect the
+# previously generated symbol versions into the same script.
+lto_lds()
+{
+ if [ -z "${CONFIG_LTO_CLANG}" ]; then
+ return
+ fi
+
+ ${srctree}/scripts/generate_initcall_order.pl \
+ built-in.a ${KBUILD_VMLINUX_LIBS} \
+ > .tmp_lto.lds
+
+ if [ -n "${CONFIG_MODVERSIONS}" ]; then
+ for a in built-in.a ${KBUILD_VMLINUX_LIBS}; do
+ for o in $(${AR} t $a); do
+ if [ -f ${o}.symversions ]; then
+ cat ${o}.symversions >> .tmp_lto.lds
+ fi
+ done
+ done
+ fi
+
+ echo "-T .tmp_lto.lds"
}
# Link of vmlinux.o used for section mismatch analysis
@@ -75,7 +108,26 @@
${KBUILD_VMLINUX_LIBS} \
--end-group"
- ${LD} ${KBUILD_LDFLAGS} -r -o ${1} ${objects}
+ if [ -n "${CONFIG_LTO_CLANG}" ]; then
+ # This might take a while, so indicate that we're doing
+ # an LTO link
+ info LTO vmlinux.o
+ fi
+
+ ${LD} ${KBUILD_LDFLAGS} -r -o ${1} $(lto_lds) ${objects}
+}
+
+# If CONFIG_LTO_CLANG is selected, we postpone running recordmcount until
+# we have compiled LLVM IR to an object file.
+recordmcount()
+{
+ if [ -z "${CONFIG_LTO_CLANG}" ]; then
+ return
+ fi
+
+ if [ -n "${CONFIG_FTRACE_MCOUNT_RECORD}" ]; then
+ scripts/recordmcount ${RECORDMCOUNT_FLAGS} $*
+ fi
}
# Link of vmlinux
@@ -87,13 +139,20 @@
local objects
if [ "${SRCARCH}" != "um" ]; then
- objects="--whole-archive \
- built-in.a \
- --no-whole-archive \
- --start-group \
- ${KBUILD_VMLINUX_LIBS} \
- --end-group \
- ${1}"
+ if [ -z "${CONFIG_LTO_CLANG}" ]; then
+ objects="--whole-archive \
+ built-in.a \
+ --no-whole-archive \
+ --start-group \
+ ${KBUILD_VMLINUX_LIBS} \
+ --end-group \
+ ${1}"
+ else
+ objects="--start-group \
+ vmlinux.o \
+ --end-group \
+ ${1}"
+ fi
${LD} ${KBUILD_LDFLAGS} ${LDFLAGS_vmlinux} -o ${2} \
-T ${lds} ${objects}
@@ -114,7 +173,6 @@
fi
}
-
# Create ${2} .o file with all symbols from the ${1} object file
kallsyms()
{
@@ -159,6 +217,7 @@
{
rm -f .tmp_System.map
rm -f .tmp_kallsyms*
+ rm -f .tmp_lto.lds
rm -f .tmp_vmlinux*
rm -f built-in.a
rm -f System.map
@@ -195,14 +254,7 @@
fi
# We need access to CONFIG_ symbols
-case "${KCONFIG_CONFIG}" in
-*/*)
- . "${KCONFIG_CONFIG}"
- ;;
-*)
- # Force using a file from the current directory
- . "./${KCONFIG_CONFIG}"
-esac
+. include/config/auto.conf
# Update version
info GEN .version
@@ -220,12 +272,16 @@
archive_builtin
#link vmlinux.o
-info LD vmlinux.o
modpost_link vmlinux.o
# modpost vmlinux.o to check for section mismatches
${MAKE} -f "${srctree}/scripts/Makefile.modpost" vmlinux.o
+if [ -n "${CONFIG_LTO_CLANG}" ]; then
+ # Call recordmcount if needed
+ recordmcount vmlinux.o
+fi
+
kallsymso=""
kallsyms_vmlinux=""
if [ -n "${CONFIG_KALLSYMS}" ]; then
diff --git a/scripts/lld-version.sh b/scripts/lld-version.sh
new file mode 100755
index 0000000..b6d6f52
--- /dev/null
+++ b/scripts/lld-version.sh
@@ -0,0 +1,36 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Print ld.lld's version in a 5 or 6-digit form.
+
+set -e
+
+# Convert the version string x.y.z to a canonical 5 or 6-digit form.
+get_canonical_version()
+{
+ IFS=.
+ set -- $1
+
+ # If the 2nd or 3rd field is missing, fill it with a zero.
+ echo $((10000 * $1 + 100 * ${2:-0} + ${3:-0}))
+}
+
+orig_args="$@"
+
+# Get the first line of the --version output.
+IFS='
+'
+set -- $(LC_ALL=C "$@" --version)
+
+# Split the line on spaces.
+IFS=' '
+set -- $1
+
+while [ $# -gt 1 -a "$1" != "LLD" ]; do
+ shift
+done
+if [ "$1" = LLD ]; then
+ echo $(get_canonical_version ${2%-*})
+else
+ echo 0
+fi
diff --git a/scripts/mkcompile_h b/scripts/mkcompile_h
index 662fe19..19de4cd 100755
--- a/scripts/mkcompile_h
+++ b/scripts/mkcompile_h
@@ -6,6 +6,7 @@
SMP=$3
PREEMPT=$4
CC=$5
+LD=$6
vecho() { [ "${quiet}" = "silent_" ] || echo "$@" ; }
@@ -72,7 +73,10 @@
echo \#define LINUX_COMPILE_BY \"`echo $LINUX_COMPILE_BY | $UTS_TRUNCATE`\"
echo \#define LINUX_COMPILE_HOST \"`echo $LINUX_COMPILE_HOST | $UTS_TRUNCATE`\"
- echo \#define LINUX_COMPILER \"`$CC -v 2>&1 | grep ' version ' | sed 's/[[:space:]]*$//'`\"
+ CC_VERSION=$($CC -v 2>&1 | grep ' version ' | sed 's/[[:space:]]*$//')
+ LD_VERSION=$($LD -v | head -n1 | sed 's/(compatible with [^)]*)//' \
+ | sed 's/[[:space:]]*$//')
+ printf '#define LINUX_COMPILER "%s"\n' "$CC_VERSION, $LD_VERSION"
) > .tmpcompile
# Only replace the real compile.h if the new one is different,
diff --git a/scripts/mod/Makefile b/scripts/mod/Makefile
index 42c5d50..e014b2f 100644
--- a/scripts/mod/Makefile
+++ b/scripts/mod/Makefile
@@ -1,5 +1,6 @@
# SPDX-License-Identifier: GPL-2.0
OBJECT_FILES_NON_STANDARD := y
+CFLAGS_empty.o += $(DISABLE_LTO)
hostprogs-y := modpost mk_elfconfig
always := $(hostprogs-y) empty.o
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 7c693bd..6129898 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -145,6 +145,9 @@ static struct module *new_module(const char *modname)
p[strlen(p) - 2] = '\0';
mod->is_dot_o = 1;
}
+ /* strip trailing .lto */
+ if (strends(p, ".lto"))
+ p[strlen(p) - 4] = '\0';
/* add to list */
mod->name = p;
@@ -942,6 +945,7 @@ static const char *const head_sections[] = { ".head.text*", NULL };
static const char *const linker_symbols[] =
{ "__init_begin", "_sinittext", "_einittext", NULL };
static const char *const optim_symbols[] = { "*.constprop.*", NULL };
+static const char *const cfi_symbols[] = { "*.cfi", NULL };
enum mismatch {
TEXT_TO_ANY_INIT,
@@ -1171,6 +1175,17 @@ static const struct sectioncheck *section_mismatch(
* whitelisting, which relies on pattern-matching against symbol
* names to work. (One situation where gcc can autogenerate ELF
* local symbols is when "-fsection-anchors" is used.)
+ *
+ * Pattern 7:
+ * With CONFIG_CFI_CLANG, clang appends .cfi to all indirectly called
+ * functions and creates a function stub with the original name. This
+ * stub is always placed in .text, even if the actual function with the
+ * .cfi postfix is in .init.text or .exit.text.
+ * This pattern is identified by
+ * tosec = init or exit section
+ * fromsec = text section
+ * tosym = *.cfi
+ *
**/
static int secref_whitelist(const struct sectioncheck *mismatch,
const char *fromsec, const char *fromsym,
@@ -1213,6 +1228,12 @@ static int secref_whitelist(const struct sectioncheck *mismatch,
if (strstarts(fromsym, ".L"))
return 0;
+ /* Check for pattern 7 */
+ if (match(fromsec, text_sections) &&
+ match(tosec, init_exit_sections) &&
+ match(tosym, cfi_symbols))
+ return 0;
+
return 1;
}
@@ -1939,6 +1960,10 @@ static char *remove_dot(char *s)
size_t m = strspn(s + n + 1, "0123456789");
if (m && (s[n + m] == '.' || s[n + m] == 0))
s[n] = 0;
+
+ /* strip trailing .lto */
+ if (strends(s, ".lto"))
+ s[strlen(s) - 4] = '\0';
}
return s;
}
@@ -2139,8 +2164,12 @@ static int check_modname_len(struct module *mod)
**/
static void add_header(struct buffer *b, struct module *mod)
{
- buf_printf(b, "#include <linux/build-salt.h>\n");
buf_printf(b, "#include <linux/module.h>\n");
+ /*
+ * Include build-salt.h after module.h in order to
+ * inherit the definitions.
+ */
+ buf_printf(b, "#include <linux/build-salt.h>\n");
buf_printf(b, "#include <linux/vermagic.h>\n");
buf_printf(b, "#include <linux/compiler.h>\n");
buf_printf(b, "\n");
diff --git a/scripts/module-lto.lds.S b/scripts/module-lto.lds.S
new file mode 100644
index 0000000..a89f0c5
--- /dev/null
+++ b/scripts/module-lto.lds.S
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <asm/page.h>
+
+/*
+ * With CONFIG_LTO_CLANG, LLD always enables -fdata-sections and
+ * -ffunction-sections, which increases the size of the final module.
+ * Merge the split sections in the final binary.
+ */
+SECTIONS {
+ /*
+ * LLVM may emit .eh_frame with CONFIG_CFI_CLANG despite
+ * -fno-asynchronous-unwind-tables. Discard the section.
+ */
+ /DISCARD/ : {
+ *(.eh_frame)
+ }
+
+ .bss : {
+ *(.bss .bss.[0-9a-zA-Z_]*)
+ *(.bss..L*)
+ }
+
+ .data : {
+ *(.data .data.[0-9a-zA-Z_]*)
+ *(.data..L*)
+ }
+
+ .rodata : {
+ *(.rodata .rodata.[0-9a-zA-Z_]*)
+ *(.rodata..L*)
+ }
+
+ /*
+ * With CFI_CLANG, ensure __cfi_check is at the beginning of the
+ * .text section, and that the section is aligned to page size.
+ */
+ .text : ALIGN(PAGE_SIZE) {
+ *(.text.__cfi_check)
+ *(.text .text.[0-9a-zA-Z_]* .text..L.cfi*)
+ }
+}
diff --git a/scripts/recordmcount.c b/scripts/recordmcount.c
index d3e61dc..a073837 100644
--- a/scripts/recordmcount.c
+++ b/scripts/recordmcount.c
@@ -410,7 +410,8 @@ is_mcounted_section_name(char const *const txtname)
strcmp(".softirqentry.text", txtname) == 0 ||
strcmp(".kprobes.text", txtname) == 0 ||
strcmp(".cpuidle.text", txtname) == 0 ||
- strcmp(".text.unlikely", txtname) == 0;
+ (strncmp(".text.", txtname, 6) == 0 &&
+ strcmp(".text..ftrace", txtname) != 0);
}
/* 32 bit and 64 bit are very similar */
diff --git a/scripts/recordmcount.h b/scripts/recordmcount.h
index ccfbfde..9f8339c 100644
--- a/scripts/recordmcount.h
+++ b/scripts/recordmcount.h
@@ -30,6 +30,11 @@
#undef has_rel_mcount
#undef tot_relsize
#undef get_mcountsym
+#undef find_symtab
+#undef get_shnum
+#undef set_shnum
+#undef get_shstrndx
+#undef get_symindex
#undef get_sym_str_and_relp
#undef do_func
#undef Elf_Addr
@@ -59,6 +64,11 @@
# define __has_rel_mcount __has64_rel_mcount
# define has_rel_mcount has64_rel_mcount
# define tot_relsize tot64_relsize
+# define find_symtab find_symtab64
+# define get_shnum get_shnum64
+# define set_shnum set_shnum64
+# define get_shstrndx get_shstrndx64
+# define get_symindex get_symindex64
# define get_sym_str_and_relp get_sym_str_and_relp_64
# define do_func do64
# define get_mcountsym get_mcountsym_64
@@ -92,6 +102,11 @@
# define __has_rel_mcount __has32_rel_mcount
# define has_rel_mcount has32_rel_mcount
# define tot_relsize tot32_relsize
+# define find_symtab find_symtab32
+# define get_shnum get_shnum32
+# define set_shnum set_shnum32
+# define get_shstrndx get_shstrndx32
+# define get_symindex get_symindex32
# define get_sym_str_and_relp get_sym_str_and_relp_32
# define do_func do32
# define get_mcountsym get_mcountsym_32
@@ -174,6 +189,67 @@ static int MIPS_is_fake_mcount(Elf_Rel const *rp)
return is_fake;
}
+static unsigned int get_symindex(Elf_Sym const *sym, Elf32_Word const *symtab,
+ Elf32_Word const *symtab_shndx)
+{
+ unsigned long offset;
+ int index;
+
+ if (sym->st_shndx != SHN_XINDEX)
+ return w2(sym->st_shndx);
+
+ offset = (unsigned long)sym - (unsigned long)symtab;
+ index = offset / sizeof(*sym);
+
+ return w(symtab_shndx[index]);
+}
+
+static unsigned int get_shnum(Elf_Ehdr const *ehdr, Elf_Shdr const *shdr0)
+{
+ if (shdr0 && !ehdr->e_shnum)
+ return w(shdr0->sh_size);
+
+ return w2(ehdr->e_shnum);
+}
+
+static void set_shnum(Elf_Ehdr *ehdr, Elf_Shdr *shdr0, unsigned int new_shnum)
+{
+ if (new_shnum >= SHN_LORESERVE) {
+ ehdr->e_shnum = 0;
+ shdr0->sh_size = w(new_shnum);
+ } else
+ ehdr->e_shnum = w2(new_shnum);
+}
+
+static int get_shstrndx(Elf_Ehdr const *ehdr, Elf_Shdr const *shdr0)
+{
+ if (ehdr->e_shstrndx != SHN_XINDEX)
+ return w2(ehdr->e_shstrndx);
+
+ return w(shdr0->sh_link);
+}
+
+static void find_symtab(Elf_Ehdr *const ehdr, Elf_Shdr const *shdr0,
+ unsigned const nhdr, Elf32_Word **symtab,
+ Elf32_Word **symtab_shndx)
+{
+ Elf_Shdr const *relhdr;
+ unsigned k;
+
+ *symtab = NULL;
+ *symtab_shndx = NULL;
+
+ for (relhdr = shdr0, k = nhdr; k; --k, ++relhdr) {
+ if (relhdr->sh_type == SHT_SYMTAB)
+ *symtab = (void *)ehdr + relhdr->sh_offset;
+ else if (relhdr->sh_type == SHT_SYMTAB_SHNDX)
+ *symtab_shndx = (void *)ehdr + relhdr->sh_offset;
+
+ if (*symtab && *symtab_shndx)
+ break;
+ }
+}
+
/* Append the new shstrtab, Elf_Shdr[], __mcount_loc and its relocations. */
static void append_func(Elf_Ehdr *const ehdr,
Elf_Shdr *const shstr,
@@ -189,10 +265,12 @@ static void append_func(Elf_Ehdr *const ehdr,
char const *mc_name = (sizeof(Elf_Rela) == rel_entsize)
? ".rela__mcount_loc"
: ".rel__mcount_loc";
- unsigned const old_shnum = w2(ehdr->e_shnum);
uint_t const old_shoff = _w(ehdr->e_shoff);
uint_t const old_shstr_sh_size = _w(shstr->sh_size);
uint_t const old_shstr_sh_offset = _w(shstr->sh_offset);
+ Elf_Shdr *const shdr0 = (Elf_Shdr *)(old_shoff + (void *)ehdr);
+ unsigned int const old_shnum = get_shnum(ehdr, shdr0);
+ unsigned int const new_shnum = 2 + old_shnum; /* {.rel,}__mcount_loc */
uint_t t = 1 + strlen(mc_name) + _w(shstr->sh_size);
uint_t new_e_shoff;
@@ -202,6 +280,8 @@ static void append_func(Elf_Ehdr *const ehdr,
t += (_align & -t); /* word-byte align */
new_e_shoff = t;
+ set_shnum(ehdr, shdr0, new_shnum);
+
/* body for new shstrtab */
ulseek(fd_map, sb.st_size, SEEK_SET);
uwrite(fd_map, old_shstr_sh_offset + (void *)ehdr, old_shstr_sh_size);
@@ -246,7 +326,6 @@ static void append_func(Elf_Ehdr *const ehdr,
uwrite(fd_map, mrel0, (void *)mrelp - (void *)mrel0);
ehdr->e_shoff = _w(new_e_shoff);
- ehdr->e_shnum = w2(2 + w2(ehdr->e_shnum)); /* {.rel,}__mcount_loc */
ulseek(fd_map, 0, SEEK_SET);
uwrite(fd_map, ehdr, sizeof(*ehdr));
}
@@ -419,6 +498,8 @@ static unsigned find_secsym_ndx(unsigned const txtndx,
char const *const txtname,
uint_t *const recvalp,
Elf_Shdr const *const symhdr,
+ Elf32_Word const *symtab,
+ Elf32_Word const *symtab_shndx,
Elf_Ehdr const *const ehdr)
{
Elf_Sym const *const sym0 = (Elf_Sym const *)(_w(symhdr->sh_offset)
@@ -430,7 +511,7 @@ static unsigned find_secsym_ndx(unsigned const txtndx,
for (symp = sym0, t = nsym; t; --t, ++symp) {
unsigned int const st_bind = ELF_ST_BIND(symp->st_info);
- if (txtndx == w2(symp->st_shndx)
+ if (txtndx == get_symindex(symp, symtab, symtab_shndx)
/* avoid STB_WEAK */
&& (STB_LOCAL == st_bind || STB_GLOBAL == st_bind)) {
/* function symbols on ARM have quirks, avoid them */
@@ -498,21 +579,23 @@ static unsigned tot_relsize(Elf_Shdr const *const shdr0,
return totrelsz;
}
-
/* Overall supervision for Elf32 ET_REL file. */
static void
do_func(Elf_Ehdr *const ehdr, char const *const fname, unsigned const reltype)
{
Elf_Shdr *const shdr0 = (Elf_Shdr *)(_w(ehdr->e_shoff)
+ (void *)ehdr);
- unsigned const nhdr = w2(ehdr->e_shnum);
- Elf_Shdr *const shstr = &shdr0[w2(ehdr->e_shstrndx)];
+ unsigned const nhdr = get_shnum(ehdr, shdr0);
+ Elf_Shdr *const shstr = &shdr0[get_shstrndx(ehdr, shdr0)];
char const *const shstrtab = (char const *)(_w(shstr->sh_offset)
+ (void *)ehdr);
Elf_Shdr const *relhdr;
unsigned k;
+ Elf32_Word *symtab;
+ Elf32_Word *symtab_shndx;
+
/* Upper bound on space: assume all relevant relocs are for mcount. */
unsigned const totrelsz = tot_relsize(shdr0, nhdr, shstrtab, fname);
Elf_Rel *const mrel0 = umalloc(totrelsz);
@@ -525,6 +608,8 @@ do_func(Elf_Ehdr *const ehdr, char const *const fname, unsigned const reltype)
unsigned rel_entsize = 0;
unsigned symsec_sh_link = 0;
+ find_symtab(ehdr, shdr0, nhdr, &symtab, &symtab_shndx);
+
for (relhdr = shdr0, k = nhdr; k; --k, ++relhdr) {
char const *const txtname = has_rel_mcount(relhdr, shdr0,
shstrtab, fname);
@@ -533,6 +618,7 @@ do_func(Elf_Ehdr *const ehdr, char const *const fname, unsigned const reltype)
unsigned const recsym = find_secsym_ndx(
w(relhdr->sh_info), txtname, &recval,
&shdr0[symsec_sh_link = w(relhdr->sh_link)],
+ symtab, symtab_shndx,
ehdr);
rel_entsize = _w(relhdr->sh_entsize);
diff --git a/scripts/setlocalversion b/scripts/setlocalversion
index 2cb0b92..c2e8455 100755
--- a/scripts/setlocalversion
+++ b/scripts/setlocalversion
@@ -11,12 +11,14 @@
#
usage() {
- echo "Usage: $0 [--save-scmversion] [srctree]" >&2
+ echo "Usage: $0 [--save-scmversion] [srctree] [branch] [kmi-generation]" >&2
exit 1
}
scm_only=false
srctree=.
+android_release=
+kmi_generation=
if test "$1" = "--save-scmversion"; then
scm_only=true
shift
@@ -25,6 +27,24 @@
srctree=$1
shift
fi
+if test $# -gt 0; then
+ # Extract the Android release version. If there is no match, then return 255
+ # and clear the var $android_release
+ android_release=`echo "$1" | sed -e '/android[0-9]\{2,\}/!{q255}; \
+ s/^\(android[0-9]\{2,\}\)-.*/\1/'`
+ if test $? -ne 0; then
+ android_release=
+ fi
+ shift
+
+ if test $# -gt 0; then
+ kmi_generation=$1
+ [ $(expr $kmi_generation : '^[0-9]\+$') -eq 0 ] && usage
+ shift
+ else
+ usage
+ fi
+fi
if test $# -gt 0 -o ! -d "$srctree"; then
usage
fi
@@ -47,6 +67,10 @@
if test -z "$(git rev-parse --show-cdup 2>/dev/null)" &&
head=$(git rev-parse --verify HEAD 2>/dev/null); then
+ if [ -n "$android_release" ] && [ -n "$kmi_generation" ]; then
+ printf '%s' "-$android_release-$kmi_generation"
+ fi
+
# If we are at a tagged commit (like "v2.6.30-rc6"), we ignore
# it, because this version is defined in the top level Makefile.
if [ -z "`git describe --exact-match 2>/dev/null`" ]; then
diff --git a/scripts/tools-support-relr.sh b/scripts/tools-support-relr.sh
new file mode 100755
index 0000000..45e8aa3
--- /dev/null
+++ b/scripts/tools-support-relr.sh
@@ -0,0 +1,16 @@
+#!/bin/sh -eu
+# SPDX-License-Identifier: GPL-2.0
+
+tmp_file=$(mktemp)
+trap "rm -f $tmp_file.o $tmp_file $tmp_file.bin" EXIT
+
+cat << "END" | $CC -c -x c - -o $tmp_file.o >/dev/null 2>&1
+void *p = &p;
+END
+$LD $tmp_file.o -shared -Bsymbolic --pack-dyn-relocs=relr -o $tmp_file
+
+# Despite printing an error message, GNU nm still exits with exit code 0 if it
+# sees a relr section. So we need to check that nothing is printed to stderr.
+test -z "$($NM $tmp_file 2>&1 >/dev/null)"
+
+$OBJCOPY -O binary $tmp_file $tmp_file.bin
diff --git a/security/Kconfig b/security/Kconfig
index d9aa521..bfb5302 100644
--- a/security/Kconfig
+++ b/security/Kconfig
@@ -276,5 +276,7 @@
default "apparmor" if DEFAULT_SECURITY_APPARMOR
default "" if DEFAULT_SECURITY_DAC
+source "security/Kconfig.hardening"
+
endmenu
diff --git a/security/Kconfig.hardening b/security/Kconfig.hardening
new file mode 100644
index 0000000..234250c
--- /dev/null
+++ b/security/Kconfig.hardening
@@ -0,0 +1,135 @@
+# SPDX-License-Identifier: GPL-2.0-only
+menu "Kernel hardening options"
+
+config GCC_PLUGIN_STRUCTLEAK
+ bool
+ help
+ While the kernel is built with warnings enabled for any missed
+ stack variable initializations, this warning is silenced for
+ anything passed by reference to another function, under the
+ occasionally misguided assumption that the function will do
+ the initialization. As this regularly leads to exploitable
+ flaws, this plugin is available to identify and zero-initialize
+ such variables, depending on the chosen level of coverage.
+
+ This plugin was originally ported from grsecurity/PaX. More
+ information at:
+ * https://grsecurity.net/
+ * https://pax.grsecurity.net/
+
+menu "Memory initialization"
+
+config CC_HAS_AUTO_VAR_INIT_PATTERN
+ def_bool $(cc-option,-ftrivial-auto-var-init=pattern)
+
+config CC_HAS_AUTO_VAR_INIT_ZERO
+ def_bool $(cc-option,-ftrivial-auto-var-init=zero -enable-trivial-auto-var-init-zero-knowing-it-will-be-removed-from-clang)
+
+choice
+ prompt "Initialize kernel stack variables at function entry"
+ default GCC_PLUGIN_STRUCTLEAK_BYREF_ALL if COMPILE_TEST && GCC_PLUGINS
+ default INIT_STACK_ALL_PATTERN if COMPILE_TEST && CC_HAS_AUTO_VAR_INIT_PATTERN
+ default INIT_STACK_NONE
+ help
+ This option enables initialization of stack variables at
+ function entry time. This has the possibility to have the
+ greatest coverage (since all functions can have their
+ variables initialized), but the performance impact depends
+ on the function calling complexity of a given workload's
+ syscalls.
+
+ This chooses the level of coverage over classes of potentially
+ uninitialized variables. The selected class will be
+ initialized before use in a function.
+
+ config INIT_STACK_NONE
+ bool "no automatic initialization (weakest)"
+ help
+ Disable automatic stack variable initialization.
+ This leaves the kernel vulnerable to the standard
+ classes of uninitialized stack variable exploits
+ and information exposures.
+
+ config GCC_PLUGIN_STRUCTLEAK_BYREF_ALL
+ bool "zero-init anything passed by reference (very strong)"
+ depends on GCC_PLUGINS
+ select GCC_PLUGIN_STRUCTLEAK
+ help
+ Zero-initialize any stack variables that may be passed
+ by reference and had not already been explicitly
+ initialized. This is intended to eliminate all classes
+ of uninitialized stack variable exploits and information
+ exposures.
+
+ config INIT_STACK_ALL_PATTERN
+ bool "0xAA-init everything on the stack (strongest)"
+ depends on CC_HAS_AUTO_VAR_INIT_PATTERN
+ help
+ Initializes everything on the stack with a 0xAA
+ pattern. This is intended to eliminate all classes
+ of uninitialized stack variable exploits and information
+ exposures, even variables that were warned to have been
+ left uninitialized.
+
+ Pattern initialization is known to provoke many existing bugs
+ related to uninitialized locals, e.g. pointers receive
+ non-NULL values, buffer sizes and indices are very big.
+
+ config INIT_STACK_ALL_ZERO
+ bool "zero-init everything on the stack (strongest and safest)"
+ depends on CC_HAS_AUTO_VAR_INIT_ZERO
+ help
+ Initializes everything on the stack with a zero
+ value. This is intended to eliminate all classes
+ of uninitialized stack variable exploits and information
+ exposures, even variables that were warned to have been
+ left uninitialized.
+
+ Zero initialization provides safe defaults for strings,
+ pointers, indices and sizes, and is therefore
+ more suitable as a security mitigation measure.
+
+endchoice
+
+config GCC_PLUGIN_STRUCTLEAK_VERBOSE
+ bool "Report forcefully initialized variables"
+ depends on GCC_PLUGIN_STRUCTLEAK
+ depends on !COMPILE_TEST # too noisy
+ help
+ This option will cause a warning to be printed each time the
+ structleak plugin finds a variable it thinks needs to be
+ initialized. Since not all existing initializers are detected
+ by the plugin, this can produce false positive warnings.
+
+config INIT_ON_ALLOC_DEFAULT_ON
+ bool "Enable heap memory zeroing on allocation by default"
+ help
+ This has the effect of setting "init_on_alloc=1" on the kernel
+ command line. This can be disabled with "init_on_alloc=0".
+ When "init_on_alloc" is enabled, all page allocator and slab
+ allocator memory will be zeroed when allocated, eliminating
+ many kinds of "uninitialized heap memory" flaws, especially
+ heap content exposures. The performance impact varies by
+ workload, but most cases see <1% impact. Some synthetic
+ workloads have measured as high as 7%.
+
+config INIT_ON_FREE_DEFAULT_ON
+ bool "Enable heap memory zeroing on free by default"
+ help
+ This has the effect of setting "init_on_free=1" on the kernel
+ command line. This can be disabled with "init_on_free=0".
+ Similar to "init_on_alloc", when "init_on_free" is enabled,
+ all page allocator and slab allocator memory will be zeroed
+ when freed, eliminating many kinds of "uninitialized heap memory"
+ flaws, especially heap content exposures. The primary difference
+ with "init_on_free" is that data lifetime in memory is reduced,
+ as anything freed is wiped immediately, making live forensics or
+ cold boot memory attacks unable to recover freed memory contents.
+ The performance impact varies by workload, but is more expensive
+ than "init_on_alloc" due to the negative cache effects of
+ touching "cold" memory areas. Most cases see 3-5% impact. Some
+ synthetic workloads have measured as high as 8%.
+
+endmenu
+
+endmenu
diff --git a/security/keys/internal.h b/security/keys/internal.h
index d1b9c59..b971d3f 100644
--- a/security/keys/internal.h
+++ b/security/keys/internal.h
@@ -160,8 +160,6 @@ extern struct key *request_key_and_link(struct key_type *type,
extern bool lookup_user_key_possessed(const struct key *key,
const struct key_match_data *match_data);
-extern key_ref_t lookup_user_key(key_serial_t id, unsigned long flags,
- key_perm_t perm);
#define KEY_LOOKUP_CREATE 0x01
#define KEY_LOOKUP_PARTIAL 0x02
#define KEY_LOOKUP_FOR_UNLINK 0x04
diff --git a/security/keys/process_keys.c b/security/keys/process_keys.c
index d776d21..85a24c9 100644
--- a/security/keys/process_keys.c
+++ b/security/keys/process_keys.c
@@ -756,6 +756,7 @@ key_ref_t lookup_user_key(key_serial_t id, unsigned long lflags,
put_cred(ctx.cred);
goto try_again;
}
+EXPORT_SYMBOL(lookup_user_key);
/*
* Join the named keyring as the session keyring if possible else attempt to
diff --git a/security/min_addr.c b/security/min_addr.c
index 94d2b0c..37eb525 100644
--- a/security/min_addr.c
+++ b/security/min_addr.c
@@ -6,6 +6,8 @@
/* amount of vm to protect from userspace access by both DAC and the LSM*/
unsigned long mmap_min_addr;
+EXPORT_SYMBOL_GPL(mmap_min_addr);
+
/* amount of vm to protect from userspace using CAP_SYS_RAWIO (DAC) */
unsigned long dac_mmap_min_addr = CONFIG_DEFAULT_MMAP_MIN_ADDR;
/* amount of vm to protect from userspace using the LSM = CONFIG_LSM_MMAP_MIN_ADDR */
diff --git a/security/security.c b/security/security.c
index 9478444..c792aa4 100644
--- a/security/security.c
+++ b/security/security.c
@@ -938,6 +938,7 @@ int security_mmap_addr(unsigned long addr)
{
return call_int_hook(mmap_addr, 0, addr);
}
+EXPORT_SYMBOL_GPL(security_mmap_addr);
int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
unsigned long prot)
@@ -1800,3 +1801,30 @@ void security_bpf_prog_free(struct bpf_prog_aux *aux)
call_void_hook(bpf_prog_free_security, aux);
}
#endif /* CONFIG_BPF_SYSCALL */
+
+#ifdef CONFIG_PERF_EVENTS
+int security_perf_event_open(struct perf_event_attr *attr, int type)
+{
+ return call_int_hook(perf_event_open, 0, attr, type);
+}
+
+int security_perf_event_alloc(struct perf_event *event)
+{
+ return call_int_hook(perf_event_alloc, 0, event);
+}
+
+void security_perf_event_free(struct perf_event *event)
+{
+ call_void_hook(perf_event_free, event);
+}
+
+int security_perf_event_read(struct perf_event *event)
+{
+ return call_int_hook(perf_event_read, 0, event);
+}
+
+int security_perf_event_write(struct perf_event *event)
+{
+ return call_int_hook(perf_event_write, 0, event);
+}
+#endif /* CONFIG_PERF_EVENTS */
diff --git a/security/selinux/Kconfig b/security/selinux/Kconfig
index 8af7a69..8297e48 100644
--- a/security/selinux/Kconfig
+++ b/security/selinux/Kconfig
@@ -99,3 +99,15 @@
via /selinux/checkreqprot if authorized by policy.
If you are unsure how to answer this question, answer 0.
+
+config SECURITY_SELINUX_SIDTAB_HASH_BITS
+ int "NSA SELinux sidtab hashtable size"
+ depends on SECURITY_SELINUX
+ range 8 13
+ default 9
+ help
+ This option sets the number of buckets used in the sidtab hashtable
+ to 2^SECURITY_SELINUX_SIDTAB_HASH_BITS buckets. The number of hash
+ collisions may be viewed at /sys/fs/selinux/ss/sidtab_hash_stats. If
+ chain lengths are high (e.g. > 20) then selecting a higher value here
+ will ensure that lookups times are short and stable.
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 08833bb..95cbf28 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -871,6 +871,7 @@ static int selinux_set_mnt_opts(struct super_block *sb,
!strcmp(sb->s_type->name, "tracefs") ||
!strcmp(sb->s_type->name, "sysfs") ||
!strcmp(sb->s_type->name, "pstore") ||
+ !strcmp(sb->s_type->name, "binder") ||
!strcmp(sb->s_type->name, "cgroup") ||
!strcmp(sb->s_type->name, "cgroup2"))
sbsec->flags |= SE_SBGENFS;
@@ -6983,6 +6984,68 @@ static void selinux_bpf_prog_free(struct bpf_prog_aux *aux)
}
#endif
+
+#ifdef CONFIG_PERF_EVENTS
+static int selinux_perf_event_open(struct perf_event_attr *attr, int type)
+{
+ u32 requested, sid = current_sid();
+
+ if (type == PERF_SECURITY_OPEN)
+ requested = PERF_EVENT__OPEN;
+ else if (type == PERF_SECURITY_CPU)
+ requested = PERF_EVENT__CPU;
+ else if (type == PERF_SECURITY_KERNEL)
+ requested = PERF_EVENT__KERNEL;
+ else if (type == PERF_SECURITY_TRACEPOINT)
+ requested = PERF_EVENT__TRACEPOINT;
+ else
+ return -EINVAL;
+
+ return avc_has_perm(&selinux_state, sid, sid, SECCLASS_PERF_EVENT,
+ requested, NULL);
+}
+
+static int selinux_perf_event_alloc(struct perf_event *event)
+{
+ struct perf_event_security_struct *perfsec;
+
+ perfsec = kzalloc(sizeof(*perfsec), GFP_KERNEL);
+ if (!perfsec)
+ return -ENOMEM;
+
+ perfsec->sid = current_sid();
+ event->security = perfsec;
+
+ return 0;
+}
+
+static void selinux_perf_event_free(struct perf_event *event)
+{
+ struct perf_event_security_struct *perfsec = event->security;
+
+ event->security = NULL;
+ kfree(perfsec);
+}
+
+static int selinux_perf_event_read(struct perf_event *event)
+{
+ struct perf_event_security_struct *perfsec = event->security;
+ u32 sid = current_sid();
+
+ return avc_has_perm(&selinux_state, sid, perfsec->sid,
+ SECCLASS_PERF_EVENT, PERF_EVENT__READ, NULL);
+}
+
+static int selinux_perf_event_write(struct perf_event *event)
+{
+ struct perf_event_security_struct *perfsec = event->security;
+ u32 sid = current_sid();
+
+ return avc_has_perm(&selinux_state, sid, perfsec->sid,
+ SECCLASS_PERF_EVENT, PERF_EVENT__WRITE, NULL);
+}
+#endif
+
static struct security_hook_list selinux_hooks[] __lsm_ro_after_init = {
LSM_HOOK_INIT(binder_set_context_mgr, selinux_binder_set_context_mgr),
LSM_HOOK_INIT(binder_transaction, selinux_binder_transaction),
@@ -7218,6 +7281,14 @@ static struct security_hook_list selinux_hooks[] __lsm_ro_after_init = {
LSM_HOOK_INIT(bpf_map_free_security, selinux_bpf_map_free),
LSM_HOOK_INIT(bpf_prog_free_security, selinux_bpf_prog_free),
#endif
+
+#ifdef CONFIG_PERF_EVENTS
+ LSM_HOOK_INIT(perf_event_open, selinux_perf_event_open),
+ LSM_HOOK_INIT(perf_event_alloc, selinux_perf_event_alloc),
+ LSM_HOOK_INIT(perf_event_free, selinux_perf_event_free),
+ LSM_HOOK_INIT(perf_event_read, selinux_perf_event_read),
+ LSM_HOOK_INIT(perf_event_write, selinux_perf_event_write),
+#endif
};
static __init int selinux_init(void)
diff --git a/security/selinux/include/classmap.h b/security/selinux/include/classmap.h
index 201f7e5..648c075 100644
--- a/security/selinux/include/classmap.h
+++ b/security/selinux/include/classmap.h
@@ -115,7 +115,8 @@ struct security_class_mapping secclass_map[] = {
{ COMMON_IPC_PERMS, NULL } },
{ "netlink_route_socket",
{ COMMON_SOCK_PERMS,
- "nlmsg_read", "nlmsg_write", NULL } },
+ "nlmsg_read", "nlmsg_write", "nlmsg_readpriv", "nlmsg_getneigh",
+ NULL } },
{ "netlink_tcpdiag_socket",
{ COMMON_SOCK_PERMS,
"nlmsg_read", "nlmsg_write", NULL } },
@@ -243,6 +244,8 @@ struct security_class_mapping secclass_map[] = {
{"map_create", "map_read", "map_write", "prog_load", "prog_run"} },
{ "xdp_socket",
{ COMMON_SOCK_PERMS, NULL } },
+ { "perf_event",
+ {"open", "cpu", "kernel", "tracepoint", "read", "write"} },
{ NULL }
};
diff --git a/security/selinux/include/objsec.h b/security/selinux/include/objsec.h
index cc5e26b..25b69dc 100644
--- a/security/selinux/include/objsec.h
+++ b/security/selinux/include/objsec.h
@@ -155,7 +155,11 @@ struct pkey_security_struct {
};
struct bpf_security_struct {
- u32 sid; /*SID of bpf obj creater*/
+ u32 sid; /* SID of bpf obj creator */
+};
+
+struct perf_event_security_struct {
+ u32 sid; /* SID of perf_event obj creator */
};
#endif /* _SELINUX_OBJSEC_H_ */
diff --git a/security/selinux/include/security.h b/security/selinux/include/security.h
index 23e762d..d9a64b3 100644
--- a/security/selinux/include/security.h
+++ b/security/selinux/include/security.h
@@ -81,7 +81,7 @@ enum {
};
#define POLICYDB_CAPABILITY_MAX (__POLICYDB_CAPABILITY_MAX - 1)
-extern char *selinux_policycap_names[__POLICYDB_CAPABILITY_MAX];
+extern const char *selinux_policycap_names[__POLICYDB_CAPABILITY_MAX];
/*
* type_datum properties
@@ -104,6 +104,9 @@ struct selinux_state {
bool checkreqprot;
bool initialized;
bool policycap[__POLICYDB_CAPABILITY_MAX];
+ bool android_netlink_route;
+ bool android_netlink_getneigh;
+
struct selinux_avc *avc;
struct selinux_ss *ss;
};
@@ -176,6 +179,20 @@ static inline bool selinux_policycap_nnp_nosuid_transition(void)
return state->policycap[POLICYDB_CAPABILITY_NNP_NOSUID_TRANSITION];
}
+static inline bool selinux_android_nlroute_getlink(void)
+{
+ struct selinux_state *state = &selinux_state;
+
+ return state->android_netlink_route;
+}
+
+static inline bool selinux_android_nlroute_getneigh(void)
+{
+ struct selinux_state *state = &selinux_state;
+
+ return state->android_netlink_getneigh;
+}
+
int security_mls_enabled(struct selinux_state *state);
int security_load_policy(struct selinux_state *state,
void *data, size_t len);
@@ -390,5 +407,7 @@ extern int selinux_nlmsg_lookup(u16 sclass, u16 nlmsg_type, u32 *perm);
extern void avtab_cache_init(void);
extern void ebitmap_cache_init(void);
extern void hashtab_cache_init(void);
+extern void selinux_nlmsg_init(void);
+extern int security_sidtab_hash_stats(struct selinux_state *state, char *page);
#endif /* _SELINUX_SECURITY_H_ */
diff --git a/security/selinux/nlmsgtab.c b/security/selinux/nlmsgtab.c
index 9cec812..7489888 100644
--- a/security/selinux/nlmsgtab.c
+++ b/security/selinux/nlmsgtab.c
@@ -28,7 +28,7 @@ struct nlmsg_perm {
u32 perm;
};
-static const struct nlmsg_perm nlmsg_route_perms[] =
+static struct nlmsg_perm nlmsg_route_perms[] =
{
{ RTM_NEWLINK, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
{ RTM_DELLINK, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
@@ -206,3 +206,43 @@ int selinux_nlmsg_lookup(u16 sclass, u16 nlmsg_type, u32 *perm)
return err;
}
+
+static void nlmsg_set_perm_for_type(u32 perm, u16 type)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(nlmsg_route_perms); i++) {
+ if (nlmsg_route_perms[i].nlmsg_type == type) {
+ nlmsg_route_perms[i].perm = perm;
+ break;
+ }
+ }
+}
+
+/**
+ * Use nlmsg_readpriv as the permission for RTM_GETLINK messages if the
+ * netlink_route_getlink policy capability is set. Otherwise use nlmsg_read.
+ * Similarly, use nlmsg_getneigh for RTM_GETNEIGH and RTM_GETNEIGHTBL if the
+ * netlink_route_getneigh policy capability is set. Otherwise use nlmsg_read.
+ */
+void selinux_nlmsg_init(void)
+{
+ if (selinux_android_nlroute_getlink())
+ nlmsg_set_perm_for_type(NETLINK_ROUTE_SOCKET__NLMSG_READPRIV,
+ RTM_GETLINK);
+ else
+ nlmsg_set_perm_for_type(NETLINK_ROUTE_SOCKET__NLMSG_READ,
+ RTM_GETLINK);
+
+ if (selinux_android_nlroute_getneigh()) {
+ nlmsg_set_perm_for_type(NETLINK_ROUTE_SOCKET__NLMSG_GETNEIGH,
+ RTM_GETNEIGH);
+ nlmsg_set_perm_for_type(NETLINK_ROUTE_SOCKET__NLMSG_GETNEIGH,
+ RTM_GETNEIGHTBL);
+ } else {
+ nlmsg_set_perm_for_type(NETLINK_ROUTE_SOCKET__NLMSG_READ,
+ RTM_GETNEIGH);
+ nlmsg_set_perm_for_type(NETLINK_ROUTE_SOCKET__NLMSG_READ,
+ RTM_GETNEIGHTBL);
+ }
+}
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index 60b3f16..f6bc78a 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -1487,6 +1487,32 @@ static ssize_t sel_read_avc_hash_stats(struct file *filp, char __user *buf,
return length;
}
+static ssize_t sel_read_sidtab_hash_stats(struct file *filp, char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct selinux_fs_info *fsi = file_inode(filp)->i_sb->s_fs_info;
+ struct selinux_state *state = fsi->state;
+ char *page;
+ ssize_t length;
+
+ page = (char *)__get_free_page(GFP_KERNEL);
+ if (!page)
+ return -ENOMEM;
+
+ length = security_sidtab_hash_stats(state, page);
+ if (length >= 0)
+ length = simple_read_from_buffer(buf, count, ppos, page,
+ length);
+ free_page((unsigned long)page);
+
+ return length;
+}
+
+static const struct file_operations sel_sidtab_hash_stats_ops = {
+ .read = sel_read_sidtab_hash_stats,
+ .llseek = generic_file_llseek,
+};
+
static const struct file_operations sel_avc_cache_threshold_ops = {
.read = sel_read_avc_cache_threshold,
.write = sel_write_avc_cache_threshold,
@@ -1605,6 +1631,37 @@ static int sel_make_avc_files(struct dentry *dir)
return 0;
}
+static int sel_make_ss_files(struct dentry *dir)
+{
+ struct super_block *sb = dir->d_sb;
+ struct selinux_fs_info *fsi = sb->s_fs_info;
+ int i;
+ static struct tree_descr files[] = {
+ { "sidtab_hash_stats", &sel_sidtab_hash_stats_ops, S_IRUGO },
+ };
+
+ for (i = 0; i < ARRAY_SIZE(files); i++) {
+ struct inode *inode;
+ struct dentry *dentry;
+
+ dentry = d_alloc_name(dir, files[i].name);
+ if (!dentry)
+ return -ENOMEM;
+
+ inode = sel_make_inode(dir->d_sb, S_IFREG|files[i].mode);
+ if (!inode) {
+ dput(dentry);
+ return -ENOMEM;
+ }
+
+ inode->i_fop = files[i].ops;
+ inode->i_ino = ++fsi->last_ino;
+ d_add(dentry, inode);
+ }
+
+ return 0;
+}
+
static ssize_t sel_read_initcon(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
@@ -1969,6 +2026,14 @@ static int sel_fill_super(struct super_block *sb, void *data, int silent)
}
ret = sel_make_avc_files(dentry);
+
+ dentry = sel_make_dir(sb->s_root, "ss", &fsi->last_ino);
+ if (IS_ERR(dentry)) {
+ ret = PTR_ERR(dentry);
+ goto err;
+ }
+
+ ret = sel_make_ss_files(dentry);
if (ret)
goto err;
diff --git a/security/selinux/ss/context.h b/security/selinux/ss/context.h
index 2260c44..69fd194 100644
--- a/security/selinux/ss/context.h
+++ b/security/selinux/ss/context.h
@@ -31,6 +31,7 @@ struct context {
u32 len; /* length of string in bytes */
struct mls_range range;
char *str; /* string representation if context cannot be mapped. */
+ u32 hash; /* a hash of the string representation */
};
static inline void mls_context_init(struct context *c)
@@ -136,12 +137,13 @@ static inline int context_cpy(struct context *dst, struct context *src)
kfree(dst->str);
return rc;
}
+ dst->hash = src->hash;
return 0;
}
static inline void context_destroy(struct context *c)
{
- c->user = c->role = c->type = 0;
+ c->user = c->role = c->type = c->hash = 0;
kfree(c->str);
c->str = NULL;
c->len = 0;
@@ -150,6 +152,8 @@ static inline void context_destroy(struct context *c)
static inline int context_cmp(struct context *c1, struct context *c2)
{
+ if (c1->hash && c2->hash && (c1->hash != c2->hash))
+ return 0;
if (c1->len && c2->len)
return (c1->len == c2->len && !strcmp(c1->str, c2->str));
if (c1->len || c2->len)
@@ -160,5 +164,10 @@ static inline int context_cmp(struct context *c1, struct context *c2)
mls_context_cmp(c1, c2));
}
+static inline unsigned int context_compute_hash(const char *s)
+{
+ return full_name_hash(NULL, s, strlen(s));
+}
+
#endif /* _SS_CONTEXT_H_ */
diff --git a/security/selinux/ss/mls.c b/security/selinux/ss/mls.c
index 39475fb..5e05f5b 100644
--- a/security/selinux/ss/mls.c
+++ b/security/selinux/ss/mls.c
@@ -218,9 +218,7 @@ int mls_context_isvalid(struct policydb *p, struct context *c)
/*
* Set the MLS fields in the security context structure
* `context' based on the string representation in
- * the string `*scontext'. Update `*scontext' to
- * point to the end of the string representation of
- * the MLS fields.
+ * the string `scontext'.
*
* This function modifies the string in place, inserting
* NULL characters to terminate the MLS fields.
@@ -235,21 +233,24 @@ int mls_context_isvalid(struct policydb *p, struct context *c)
*/
int mls_context_to_sid(struct policydb *pol,
char oldc,
- char **scontext,
+ char *scontext,
struct context *context,
struct sidtab *s,
u32 def_sid)
{
-
- char delim;
- char *scontextp, *p, *rngptr;
+ char *sensitivity, *cur_cat, *next_cat, *rngptr;
struct level_datum *levdatum;
struct cat_datum *catdatum, *rngdatum;
- int l, rc = -EINVAL;
+ int l, rc, i;
+ char *rangep[2];
if (!pol->mls_enabled) {
- if (def_sid != SECSID_NULL && oldc)
- *scontext += strlen(*scontext) + 1;
+ /*
+ * With no MLS, only return -EINVAL if there is a MLS field
+ * and it did not come from an xattr.
+ */
+ if (oldc && def_sid == SECSID_NULL)
+ return -EINVAL;
return 0;
}
@@ -261,113 +262,94 @@ int mls_context_to_sid(struct policydb *pol,
struct context *defcon;
if (def_sid == SECSID_NULL)
- goto out;
+ return -EINVAL;
defcon = sidtab_search(s, def_sid);
if (!defcon)
- goto out;
+ return -EINVAL;
- rc = mls_context_cpy(context, defcon);
- goto out;
+ return mls_context_cpy(context, defcon);
}
- /* Extract low sensitivity. */
- scontextp = p = *scontext;
- while (*p && *p != ':' && *p != '-')
- p++;
+ /*
+ * If we're dealing with a range, figure out where the two parts
+ * of the range begin.
+ */
+ rangep[0] = scontext;
+ rangep[1] = strchr(scontext, '-');
+ if (rangep[1]) {
+ rangep[1][0] = '\0';
+ rangep[1]++;
+ }
- delim = *p;
- if (delim != '\0')
- *p++ = '\0';
-
+ /* For each part of the range: */
for (l = 0; l < 2; l++) {
- levdatum = hashtab_search(pol->p_levels.table, scontextp);
- if (!levdatum) {
- rc = -EINVAL;
- goto out;
- }
+ /* Split sensitivity and category set. */
+ sensitivity = rangep[l];
+ if (sensitivity == NULL)
+ break;
+ next_cat = strchr(sensitivity, ':');
+ if (next_cat)
+ *(next_cat++) = '\0';
+ /* Parse sensitivity. */
+ levdatum = hashtab_search(pol->p_levels.table, sensitivity);
+ if (!levdatum)
+ return -EINVAL;
context->range.level[l].sens = levdatum->level->sens;
- if (delim == ':') {
- /* Extract category set. */
- while (1) {
- scontextp = p;
- while (*p && *p != ',' && *p != '-')
- p++;
- delim = *p;
- if (delim != '\0')
- *p++ = '\0';
+ /* Extract category set. */
+ while (next_cat != NULL) {
+ cur_cat = next_cat;
+ next_cat = strchr(next_cat, ',');
+ if (next_cat != NULL)
+ *(next_cat++) = '\0';
- /* Separate into range if exists */
- rngptr = strchr(scontextp, '.');
- if (rngptr != NULL) {
- /* Remove '.' */
- *rngptr++ = '\0';
- }
+ /* Separate into range if exists */
+ rngptr = strchr(cur_cat, '.');
+ if (rngptr != NULL) {
+ /* Remove '.' */
+ *rngptr++ = '\0';
+ }
- catdatum = hashtab_search(pol->p_cats.table,
- scontextp);
- if (!catdatum) {
- rc = -EINVAL;
- goto out;
- }
+ catdatum = hashtab_search(pol->p_cats.table, cur_cat);
+ if (!catdatum)
+ return -EINVAL;
- rc = ebitmap_set_bit(&context->range.level[l].cat,
- catdatum->value - 1, 1);
+ rc = ebitmap_set_bit(&context->range.level[l].cat,
+ catdatum->value - 1, 1);
+ if (rc)
+ return rc;
+
+ /* If range, set all categories in range */
+ if (rngptr == NULL)
+ continue;
+
+ rngdatum = hashtab_search(pol->p_cats.table, rngptr);
+ if (!rngdatum)
+ return -EINVAL;
+
+ if (catdatum->value >= rngdatum->value)
+ return -EINVAL;
+
+ for (i = catdatum->value; i < rngdatum->value; i++) {
+ rc = ebitmap_set_bit(&context->range.level[l].cat, i, 1);
if (rc)
- goto out;
-
- /* If range, set all categories in range */
- if (rngptr) {
- int i;
-
- rngdatum = hashtab_search(pol->p_cats.table, rngptr);
- if (!rngdatum) {
- rc = -EINVAL;
- goto out;
- }
-
- if (catdatum->value >= rngdatum->value) {
- rc = -EINVAL;
- goto out;
- }
-
- for (i = catdatum->value; i < rngdatum->value; i++) {
- rc = ebitmap_set_bit(&context->range.level[l].cat, i, 1);
- if (rc)
- goto out;
- }
- }
-
- if (delim != ',')
- break;
+ return rc;
}
}
- if (delim == '-') {
- /* Extract high sensitivity. */
- scontextp = p;
- while (*p && *p != ':')
- p++;
-
- delim = *p;
- if (delim != '\0')
- *p++ = '\0';
- } else
- break;
}
- if (l == 0) {
+ /* If we didn't see a '-', the range start is also the range end. */
+ if (rangep[1] == NULL) {
context->range.level[1].sens = context->range.level[0].sens;
rc = ebitmap_cpy(&context->range.level[1].cat,
&context->range.level[0].cat);
if (rc)
- goto out;
+ return rc;
}
- *scontext = ++p;
- rc = 0;
-out:
- return rc;
+
+ return 0;
}
/*
@@ -379,21 +361,19 @@ int mls_context_to_sid(struct policydb *pol,
int mls_from_string(struct policydb *p, char *str, struct context *context,
gfp_t gfp_mask)
{
- char *tmpstr, *freestr;
+ char *tmpstr;
int rc;
if (!p->mls_enabled)
return -EINVAL;
- /* we need freestr because mls_context_to_sid will change
- the value of tmpstr */
- tmpstr = freestr = kstrdup(str, gfp_mask);
+ tmpstr = kstrdup(str, gfp_mask);
if (!tmpstr) {
rc = -ENOMEM;
} else {
- rc = mls_context_to_sid(p, ':', &tmpstr, context,
+ rc = mls_context_to_sid(p, ':', tmpstr, context,
NULL, SECSID_NULL);
- kfree(freestr);
+ kfree(tmpstr);
}
return rc;
@@ -460,16 +440,17 @@ int mls_setup_user_range(struct policydb *p,
/*
* Convert the MLS fields in the security context
- * structure `c' from the values specified in the
- * policy `oldp' to the values specified in the policy `newp'.
+ * structure `oldc' from the values specified in the
+ * policy `oldp' to the values specified in the policy `newp',
+ * storing the resulting context in `newc'.
*/
int mls_convert_context(struct policydb *oldp,
struct policydb *newp,
- struct context *c)
+ struct context *oldc,
+ struct context *newc)
{
struct level_datum *levdatum;
struct cat_datum *catdatum;
- struct ebitmap bitmap;
struct ebitmap_node *node;
int l, i;
@@ -479,28 +460,25 @@ int mls_convert_context(struct policydb *oldp,
for (l = 0; l < 2; l++) {
levdatum = hashtab_search(newp->p_levels.table,
sym_name(oldp, SYM_LEVELS,
- c->range.level[l].sens - 1));
+ oldc->range.level[l].sens - 1));
if (!levdatum)
return -EINVAL;
- c->range.level[l].sens = levdatum->level->sens;
+ newc->range.level[l].sens = levdatum->level->sens;
- ebitmap_init(&bitmap);
- ebitmap_for_each_positive_bit(&c->range.level[l].cat, node, i) {
+ ebitmap_for_each_positive_bit(&oldc->range.level[l].cat,
+ node, i) {
int rc;
catdatum = hashtab_search(newp->p_cats.table,
sym_name(oldp, SYM_CATS, i));
if (!catdatum)
return -EINVAL;
- rc = ebitmap_set_bit(&bitmap, catdatum->value - 1, 1);
+ rc = ebitmap_set_bit(&newc->range.level[l].cat,
+ catdatum->value - 1, 1);
if (rc)
return rc;
-
- cond_resched();
}
- ebitmap_destroy(&c->range.level[l].cat);
- c->range.level[l].cat = bitmap;
}
return 0;
diff --git a/security/selinux/ss/mls.h b/security/selinux/ss/mls.h
index 9a3ff7a..7954b1e 100644
--- a/security/selinux/ss/mls.h
+++ b/security/selinux/ss/mls.h
@@ -34,7 +34,7 @@ int mls_level_isvalid(struct policydb *p, struct mls_level *l);
int mls_context_to_sid(struct policydb *p,
char oldc,
- char **scontext,
+ char *scontext,
struct context *context,
struct sidtab *s,
u32 def_sid);
@@ -46,7 +46,8 @@ int mls_range_set(struct context *context, struct mls_range *range);
int mls_convert_context(struct policydb *oldp,
struct policydb *newp,
- struct context *context);
+ struct context *oldc,
+ struct context *newc);
int mls_compute_sid(struct policydb *p,
struct context *scontext,
diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c
index 91d259c..3e68f93 100644
--- a/security/selinux/ss/policydb.c
+++ b/security/selinux/ss/policydb.c
@@ -914,13 +914,26 @@ int policydb_load_isids(struct policydb *p, struct sidtab *s)
if (!c->context[0].user) {
pr_err("SELinux: SID %s was never defined.\n",
c->u.name);
+ sidtab_destroy(s);
+ goto out;
+ }
+ if (c->sid[0] == SECSID_NULL || c->sid[0] > SECINITSID_NUM) {
+ pr_err("SELinux: Initial SID %s out of range.\n",
+ c->u.name);
+ sidtab_destroy(s);
+ goto out;
+ }
+ rc = context_add_hash(p, &c->context[0]);
+ if (rc) {
+ sidtab_destroy(s);
goto out;
}
- rc = sidtab_insert(s, c->sid[0], &c->context[0]);
+ rc = sidtab_set_initial(s, c->sid[0], &c->context[0]);
if (rc) {
pr_err("SELinux: unable to load initial SID %s.\n",
c->u.name);
+ sidtab_destroy(s);
goto out;
}
}
@@ -2387,6 +2400,14 @@ int policydb_read(struct policydb *p, void *fp)
p->reject_unknown = !!(le32_to_cpu(buf[1]) & REJECT_UNKNOWN);
p->allow_unknown = !!(le32_to_cpu(buf[1]) & ALLOW_UNKNOWN);
+ if ((le32_to_cpu(buf[1]) & POLICYDB_CONFIG_ANDROID_NETLINK_ROUTE)) {
+ p->android_netlink_route = 1;
+ }
+
+ if ((le32_to_cpu(buf[1]) & POLICYDB_CONFIG_ANDROID_NETLINK_GETNEIGH)) {
+ p->android_netlink_getneigh = 1;
+ }
+
if (p->policyvers >= POLICYDB_VERSION_POLCAP) {
rc = ebitmap_read(&p->policycaps, fp);
if (rc)
diff --git a/security/selinux/ss/policydb.h b/security/selinux/ss/policydb.h
index 215f8f3..9423952 100644
--- a/security/selinux/ss/policydb.h
+++ b/security/selinux/ss/policydb.h
@@ -238,6 +238,8 @@ struct genfs {
/* The policy database */
struct policydb {
int mls_enabled;
+ int android_netlink_route;
+ int android_netlink_getneigh;
/* symbol tables */
struct symtab symtab[SYM_NUM];
@@ -324,6 +326,8 @@ extern int policydb_write(struct policydb *p, void *fp);
#define PERM_SYMTAB_SIZE 32
#define POLICYDB_CONFIG_MLS 1
+#define POLICYDB_CONFIG_ANDROID_NETLINK_ROUTE (1 << 31)
+#define POLICYDB_CONFIG_ANDROID_NETLINK_GETNEIGH (1 << 30)
/* the config flags related to unknown classes/perms are bits 2 and 3 */
#define REJECT_UNKNOWN 0x00000002
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index a9f2bc8..1349f9e 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -71,7 +71,7 @@
#include "audit.h"
/* Policy capability names */
-char *selinux_policycap_names[__POLICYDB_CAPABILITY_MAX] = {
+const char *selinux_policycap_names[__POLICYDB_CAPABILITY_MAX] = {
"network_peer_controls",
"open_perms",
"extended_socket_class",
@@ -776,7 +776,7 @@ static int security_compute_validatetrans(struct selinux_state *state,
read_lock(&state->ss->policy_rwlock);
policydb = &state->ss->policydb;
- sidtab = &state->ss->sidtab;
+ sidtab = state->ss->sidtab;
if (!user)
tclass = unmap_class(&state->ss->map, orig_tclass);
@@ -876,7 +876,7 @@ int security_bounded_transition(struct selinux_state *state,
read_lock(&state->ss->policy_rwlock);
policydb = &state->ss->policydb;
- sidtab = &state->ss->sidtab;
+ sidtab = state->ss->sidtab;
rc = -EINVAL;
old_context = sidtab_search(sidtab, old_sid);
@@ -1034,7 +1034,7 @@ void security_compute_xperms_decision(struct selinux_state *state,
goto allow;
policydb = &state->ss->policydb;
- sidtab = &state->ss->sidtab;
+ sidtab = state->ss->sidtab;
scontext = sidtab_search(sidtab, ssid);
if (!scontext) {
@@ -1123,7 +1123,7 @@ void security_compute_av(struct selinux_state *state,
goto allow;
policydb = &state->ss->policydb;
- sidtab = &state->ss->sidtab;
+ sidtab = state->ss->sidtab;
scontext = sidtab_search(sidtab, ssid);
if (!scontext) {
@@ -1177,7 +1177,7 @@ void security_compute_av_user(struct selinux_state *state,
goto allow;
policydb = &state->ss->policydb;
- sidtab = &state->ss->sidtab;
+ sidtab = state->ss->sidtab;
scontext = sidtab_search(sidtab, ssid);
if (!scontext) {
@@ -1272,6 +1272,23 @@ static int context_struct_to_string(struct policydb *p,
#include "initial_sid_to_string.h"
+int security_sidtab_hash_stats(struct selinux_state *state, char *page)
+{
+ int rc;
+
+ if (!state->initialized) {
+ pr_err("SELinux: %s: called before initial load_policy\n",
+ __func__);
+ return -EINVAL;
+ }
+
+ read_lock(&state->ss->policy_rwlock);
+ rc = sidtab_hash_stats(state->ss->sidtab, page);
+ read_unlock(&state->ss->policy_rwlock);
+
+ return rc;
+}
+
const char *security_get_initial_sid_context(u32 sid)
{
if (unlikely(sid > SECINITSID_NUM))
@@ -1315,7 +1332,7 @@ static int security_sid_to_context_core(struct selinux_state *state,
}
read_lock(&state->ss->policy_rwlock);
policydb = &state->ss->policydb;
- sidtab = &state->ss->sidtab;
+ sidtab = state->ss->sidtab;
if (force)
context = sidtab_search_force(sidtab, sid);
else
@@ -1365,7 +1382,6 @@ int security_sid_to_context_force(struct selinux_state *state, u32 sid,
static int string_to_context_struct(struct policydb *pol,
struct sidtab *sidtabp,
char *scontext,
- u32 scontext_len,
struct context *ctx,
u32 def_sid)
{
@@ -1426,15 +1442,12 @@ static int string_to_context_struct(struct policydb *pol,
ctx->type = typdatum->value;
- rc = mls_context_to_sid(pol, oldc, &p, ctx, sidtabp, def_sid);
+ rc = mls_context_to_sid(pol, oldc, p, ctx, sidtabp, def_sid);
if (rc)
goto out;
- rc = -EINVAL;
- if ((p - scontext) < scontext_len)
- goto out;
-
/* Check the validity of the new context. */
+ rc = -EINVAL;
if (!policydb_context_isvalid(pol, ctx))
goto out;
rc = 0;
@@ -1444,6 +1457,42 @@ static int string_to_context_struct(struct policydb *pol,
return rc;
}
+int context_add_hash(struct policydb *policydb,
+ struct context *context)
+{
+ int rc;
+ char *str;
+ int len;
+
+ if (context->str) {
+ context->hash = context_compute_hash(context->str);
+ } else {
+ rc = context_struct_to_string(policydb, context,
+ &str, &len);
+ if (rc)
+ return rc;
+ context->hash = context_compute_hash(str);
+ kfree(str);
+ }
+ return 0;
+}
+
+static int context_struct_to_sid(struct selinux_state *state,
+ struct context *context, u32 *sid)
+{
+ int rc;
+ struct sidtab *sidtab = state->ss->sidtab;
+ struct policydb *policydb = &state->ss->policydb;
+
+ if (!context->hash) {
+ rc = context_add_hash(policydb, context);
+ if (rc)
+ return rc;
+ }
+
+ return sidtab_context_to_sid(sidtab, context, sid);
+}
+
static int security_context_to_sid_core(struct selinux_state *state,
const char *scontext, u32 scontext_len,
u32 *sid, u32 def_sid, gfp_t gfp_flags,
@@ -1487,16 +1536,16 @@ static int security_context_to_sid_core(struct selinux_state *state,
}
read_lock(&state->ss->policy_rwlock);
policydb = &state->ss->policydb;
- sidtab = &state->ss->sidtab;
+ sidtab = state->ss->sidtab;
rc = string_to_context_struct(policydb, sidtab, scontext2,
- scontext_len, &context, def_sid);
+ &context, def_sid);
if (rc == -EINVAL && force) {
context.str = str;
context.len = strlen(str) + 1;
str = NULL;
} else if (rc)
goto out_unlock;
- rc = sidtab_context_to_sid(sidtab, &context, sid);
+ rc = context_struct_to_sid(state, &context, sid);
context_destroy(&context);
out_unlock:
read_unlock(&state->ss->policy_rwlock);
@@ -1672,7 +1721,7 @@ static int security_compute_sid(struct selinux_state *state,
}
policydb = &state->ss->policydb;
- sidtab = &state->ss->sidtab;
+ sidtab = state->ss->sidtab;
scontext = sidtab_search(sidtab, ssid);
if (!scontext) {
@@ -1797,7 +1846,7 @@ static int security_compute_sid(struct selinux_state *state,
goto out_unlock;
}
/* Obtain the sid for the context. */
- rc = sidtab_context_to_sid(sidtab, &newcontext, out_sid);
+ rc = context_struct_to_sid(state, &newcontext, out_sid);
out_unlock:
read_unlock(&state->ss->policy_rwlock);
context_destroy(&newcontext);
@@ -1884,19 +1933,6 @@ int security_change_sid(struct selinux_state *state,
out_sid, false);
}
-/* Clone the SID into the new SID table. */
-static int clone_sid(u32 sid,
- struct context *context,
- void *arg)
-{
- struct sidtab *s = arg;
-
- if (sid > SECINITSID_NUM)
- return sidtab_insert(s, sid, context);
- else
- return 0;
-}
-
static inline int convert_context_handle_invalid_context(
struct selinux_state *state,
struct context *context)
@@ -1924,101 +1960,92 @@ struct convert_context_args {
/*
* Convert the values in the security context
- * structure `c' from the values specified
+ * structure `oldc' from the values specified
* in the policy `p->oldp' to the values specified
- * in the policy `p->newp'. Verify that the
- * context is valid under the new policy.
+ * in the policy `p->newp', storing the new context
+ * in `newc'. Verify that the context is valid
+ * under the new policy.
*/
-static int convert_context(u32 key,
- struct context *c,
- void *p)
+static int convert_context(struct context *oldc, struct context *newc, void *p)
{
struct convert_context_args *args;
- struct context oldc;
struct ocontext *oc;
- struct mls_range *range;
struct role_datum *role;
struct type_datum *typdatum;
struct user_datum *usrdatum;
char *s;
u32 len;
- int rc = 0;
-
- if (key <= SECINITSID_NUM)
- goto out;
+ int rc;
args = p;
- if (c->str) {
- struct context ctx;
-
- rc = -ENOMEM;
- s = kstrdup(c->str, GFP_KERNEL);
+ if (oldc->str) {
+ s = kstrdup(oldc->str, GFP_KERNEL);
if (!s)
- goto out;
+ return -ENOMEM;
rc = string_to_context_struct(args->newp, NULL, s,
- c->len, &ctx, SECSID_NULL);
+ newc, SECSID_NULL);
+ if (rc == -EINVAL) {
+ /*
+ * Retain string representation for later mapping.
+ *
+ * IMPORTANT: We need to copy the contents of oldc->str
+ * back into s again because string_to_context_struct()
+ * may have garbled it.
+ */
+ memcpy(s, oldc->str, oldc->len);
+ context_init(newc);
+ newc->str = s;
+ newc->len = oldc->len;
+ newc->hash = oldc->hash;
+ return 0;
+ }
kfree(s);
- if (!rc) {
- pr_info("SELinux: Context %s became valid (mapped).\n",
- c->str);
- /* Replace string with mapped representation. */
- kfree(c->str);
- memcpy(c, &ctx, sizeof(*c));
- goto out;
- } else if (rc == -EINVAL) {
- /* Retain string representation for later mapping. */
- rc = 0;
- goto out;
- } else {
+ if (rc) {
/* Other error condition, e.g. ENOMEM. */
pr_err("SELinux: Unable to map context %s, rc = %d.\n",
- c->str, -rc);
- goto out;
+ oldc->str, -rc);
+ return rc;
}
+ pr_info("SELinux: Context %s became valid (mapped).\n",
+ oldc->str);
+ return 0;
}
- rc = context_cpy(&oldc, c);
- if (rc)
- goto out;
+ context_init(newc);
/* Convert the user. */
rc = -EINVAL;
usrdatum = hashtab_search(args->newp->p_users.table,
- sym_name(args->oldp, SYM_USERS, c->user - 1));
+ sym_name(args->oldp,
+ SYM_USERS, oldc->user - 1));
if (!usrdatum)
goto bad;
- c->user = usrdatum->value;
+ newc->user = usrdatum->value;
/* Convert the role. */
rc = -EINVAL;
role = hashtab_search(args->newp->p_roles.table,
- sym_name(args->oldp, SYM_ROLES, c->role - 1));
+ sym_name(args->oldp, SYM_ROLES, oldc->role - 1));
if (!role)
goto bad;
- c->role = role->value;
+ newc->role = role->value;
/* Convert the type. */
rc = -EINVAL;
typdatum = hashtab_search(args->newp->p_types.table,
- sym_name(args->oldp, SYM_TYPES, c->type - 1));
+ sym_name(args->oldp,
+ SYM_TYPES, oldc->type - 1));
if (!typdatum)
goto bad;
- c->type = typdatum->value;
+ newc->type = typdatum->value;
/* Convert the MLS fields if dealing with MLS policies */
if (args->oldp->mls_enabled && args->newp->mls_enabled) {
- rc = mls_convert_context(args->oldp, args->newp, c);
+ rc = mls_convert_context(args->oldp, args->newp, oldc, newc);
if (rc)
goto bad;
- } else if (args->oldp->mls_enabled && !args->newp->mls_enabled) {
- /*
- * Switching between MLS and non-MLS policy:
- * free any storage used by the MLS fields in the
- * context for all existing entries in the sidtab.
- */
- mls_context_destroy(c);
} else if (!args->oldp->mls_enabled && args->newp->mls_enabled) {
/*
* Switching between non-MLS and MLS policy:
@@ -2036,38 +2063,35 @@ static int convert_context(u32 key,
" the initial SIDs list\n");
goto bad;
}
- range = &oc->context[0].range;
- rc = mls_range_set(c, range);
+ rc = mls_range_set(newc, &oc->context[0].range);
if (rc)
goto bad;
}
/* Check the validity of the new context. */
- if (!policydb_context_isvalid(args->newp, c)) {
- rc = convert_context_handle_invalid_context(args->state,
- &oldc);
+ if (!policydb_context_isvalid(args->newp, newc)) {
+ rc = convert_context_handle_invalid_context(args->state, oldc);
if (rc)
goto bad;
}
- context_destroy(&oldc);
+ rc = context_add_hash(args->newp, newc);
+ if (rc)
+ goto bad;
- rc = 0;
-out:
- return rc;
+ return 0;
bad:
/* Map old representation to string and save it. */
- rc = context_struct_to_string(args->oldp, &oldc, &s, &len);
+ rc = context_struct_to_string(args->oldp, oldc, &s, &len);
if (rc)
return rc;
- context_destroy(&oldc);
- context_destroy(c);
- c->str = s;
- c->len = len;
+ context_destroy(newc);
+ newc->str = s;
+ newc->len = len;
+ newc->hash = context_compute_hash(s);
pr_info("SELinux: Context %s became invalid (unmapped).\n",
- c->str);
- rc = 0;
- goto out;
+ newc->str);
+ return 0;
}
static void security_load_policycaps(struct selinux_state *state)
@@ -2089,6 +2113,10 @@ static void security_load_policycaps(struct selinux_state *state)
pr_info("SELinux: unknown policy capability %u\n",
i);
}
+
+ state->android_netlink_route = p->android_netlink_route;
+ state->android_netlink_getneigh = p->android_netlink_getneigh;
+ selinux_nlmsg_init();
}
static int security_preserve_bools(struct selinux_state *state,
@@ -2107,11 +2135,11 @@ static int security_preserve_bools(struct selinux_state *state,
int security_load_policy(struct selinux_state *state, void *data, size_t len)
{
struct policydb *policydb;
- struct sidtab *sidtab;
+ struct sidtab *oldsidtab, *newsidtab;
struct policydb *oldpolicydb, *newpolicydb;
- struct sidtab oldsidtab, newsidtab;
struct selinux_mapping *oldmapping;
struct selinux_map newmap;
+ struct sidtab_convert_params convert_params;
struct convert_context_args args;
u32 seqno;
int rc = 0;
@@ -2125,27 +2153,37 @@ int security_load_policy(struct selinux_state *state, void *data, size_t len)
newpolicydb = oldpolicydb + 1;
policydb = &state->ss->policydb;
- sidtab = &state->ss->sidtab;
+
+ newsidtab = kmalloc(sizeof(*newsidtab), GFP_KERNEL);
+ if (!newsidtab) {
+ rc = -ENOMEM;
+ goto out;
+ }
if (!state->initialized) {
rc = policydb_read(policydb, fp);
- if (rc)
+ if (rc) {
+ kfree(newsidtab);
goto out;
+ }
policydb->len = len;
rc = selinux_set_mapping(policydb, secclass_map,
&state->ss->map);
if (rc) {
+ kfree(newsidtab);
policydb_destroy(policydb);
goto out;
}
- rc = policydb_load_isids(policydb, sidtab);
+ rc = policydb_load_isids(policydb, newsidtab);
if (rc) {
+ kfree(newsidtab);
policydb_destroy(policydb);
goto out;
}
+ state->ss->sidtab = newsidtab;
security_load_policycaps(state);
state->initialized = 1;
seqno = ++state->ss->latest_granting;
@@ -2158,13 +2196,11 @@ int security_load_policy(struct selinux_state *state, void *data, size_t len)
goto out;
}
-#if 0
- sidtab_hash_eval(sidtab, "sids");
-#endif
-
rc = policydb_read(newpolicydb, fp);
- if (rc)
+ if (rc) {
+ kfree(newsidtab);
goto out;
+ }
newpolicydb->len = len;
/* If switching between different policy types, log MLS status */
@@ -2173,10 +2209,11 @@ int security_load_policy(struct selinux_state *state, void *data, size_t len)
else if (!policydb->mls_enabled && newpolicydb->mls_enabled)
pr_info("SELinux: Enabling MLS support...\n");
- rc = policydb_load_isids(newpolicydb, &newsidtab);
+ rc = policydb_load_isids(newpolicydb, newsidtab);
if (rc) {
pr_err("SELinux: unable to load the initial SIDs\n");
policydb_destroy(newpolicydb);
+ kfree(newsidtab);
goto out;
}
@@ -2190,12 +2227,7 @@ int security_load_policy(struct selinux_state *state, void *data, size_t len)
goto err;
}
- /* Clone the SID table. */
- sidtab_shutdown(sidtab);
-
- rc = sidtab_map(sidtab, clone_sid, &newsidtab);
- if (rc)
- goto err;
+ oldsidtab = state->ss->sidtab;
/*
* Convert the internal representations of contexts
@@ -2204,7 +2236,12 @@ int security_load_policy(struct selinux_state *state, void *data, size_t len)
args.state = state;
args.oldp = policydb;
args.newp = newpolicydb;
- rc = sidtab_map(&newsidtab, convert_context, &args);
+
+ convert_params.func = convert_context;
+ convert_params.args = &args;
+ convert_params.target = newsidtab;
+
+ rc = sidtab_convert(oldsidtab, &convert_params);
if (rc) {
pr_err("SELinux: unable to convert the internal"
" representation of contexts in the new SID"
@@ -2214,12 +2251,11 @@ int security_load_policy(struct selinux_state *state, void *data, size_t len)
/* Save the old policydb and SID table to free later. */
memcpy(oldpolicydb, policydb, sizeof(*policydb));
- sidtab_set(&oldsidtab, sidtab);
/* Install the new policydb and SID table. */
write_lock_irq(&state->ss->policy_rwlock);
memcpy(policydb, newpolicydb, sizeof(*policydb));
- sidtab_set(sidtab, &newsidtab);
+ state->ss->sidtab = newsidtab;
security_load_policycaps(state);
oldmapping = state->ss->map.mapping;
state->ss->map.mapping = newmap.mapping;
@@ -2229,7 +2265,8 @@ int security_load_policy(struct selinux_state *state, void *data, size_t len)
/* Free the old policydb and SID table. */
policydb_destroy(oldpolicydb);
- sidtab_destroy(&oldsidtab);
+ sidtab_destroy(oldsidtab);
+ kfree(oldsidtab);
kfree(oldmapping);
avc_ss_reset(state->avc, seqno);
@@ -2243,7 +2280,8 @@ int security_load_policy(struct selinux_state *state, void *data, size_t len)
err:
kfree(newmap.mapping);
- sidtab_destroy(&newsidtab);
+ sidtab_destroy(newsidtab);
+ kfree(newsidtab);
policydb_destroy(newpolicydb);
out:
@@ -2280,7 +2318,7 @@ int security_port_sid(struct selinux_state *state,
read_lock(&state->ss->policy_rwlock);
policydb = &state->ss->policydb;
- sidtab = &state->ss->sidtab;
+ sidtab = state->ss->sidtab;
c = policydb->ocontexts[OCON_PORT];
while (c) {
@@ -2293,8 +2331,7 @@ int security_port_sid(struct selinux_state *state,
if (c) {
if (!c->sid[0]) {
- rc = sidtab_context_to_sid(sidtab,
- &c->context[0],
+ rc = context_struct_to_sid(state, &c->context[0],
&c->sid[0]);
if (rc)
goto out;
@@ -2319,14 +2356,12 @@ int security_ib_pkey_sid(struct selinux_state *state,
u64 subnet_prefix, u16 pkey_num, u32 *out_sid)
{
struct policydb *policydb;
- struct sidtab *sidtab;
struct ocontext *c;
int rc = 0;
read_lock(&state->ss->policy_rwlock);
policydb = &state->ss->policydb;
- sidtab = &state->ss->sidtab;
c = policydb->ocontexts[OCON_IBPKEY];
while (c) {
@@ -2340,7 +2375,7 @@ int security_ib_pkey_sid(struct selinux_state *state,
if (c) {
if (!c->sid[0]) {
- rc = sidtab_context_to_sid(sidtab,
+ rc = context_struct_to_sid(state,
&c->context[0],
&c->sid[0]);
if (rc)
@@ -2372,7 +2407,7 @@ int security_ib_endport_sid(struct selinux_state *state,
read_lock(&state->ss->policy_rwlock);
policydb = &state->ss->policydb;
- sidtab = &state->ss->sidtab;
+ sidtab = state->ss->sidtab;
c = policydb->ocontexts[OCON_IBENDPORT];
while (c) {
@@ -2387,8 +2422,7 @@ int security_ib_endport_sid(struct selinux_state *state,
if (c) {
if (!c->sid[0]) {
- rc = sidtab_context_to_sid(sidtab,
- &c->context[0],
+ rc = context_struct_to_sid(state, &c->context[0],
&c->sid[0]);
if (rc)
goto out;
@@ -2418,7 +2452,7 @@ int security_netif_sid(struct selinux_state *state,
read_lock(&state->ss->policy_rwlock);
policydb = &state->ss->policydb;
- sidtab = &state->ss->sidtab;
+ sidtab = state->ss->sidtab;
c = policydb->ocontexts[OCON_NETIF];
while (c) {
@@ -2429,13 +2463,11 @@ int security_netif_sid(struct selinux_state *state,
if (c) {
if (!c->sid[0] || !c->sid[1]) {
- rc = sidtab_context_to_sid(sidtab,
- &c->context[0],
- &c->sid[0]);
+ rc = context_struct_to_sid(state, &c->context[0],
+ &c->sid[0]);
if (rc)
goto out;
- rc = sidtab_context_to_sid(sidtab,
- &c->context[1],
+ rc = context_struct_to_sid(state, &c->context[1],
&c->sid[1]);
if (rc)
goto out;
@@ -2476,14 +2508,12 @@ int security_node_sid(struct selinux_state *state,
u32 *out_sid)
{
struct policydb *policydb;
- struct sidtab *sidtab;
int rc;
struct ocontext *c;
read_lock(&state->ss->policy_rwlock);
policydb = &state->ss->policydb;
- sidtab = &state->ss->sidtab;
switch (domain) {
case AF_INET: {
@@ -2525,7 +2555,7 @@ int security_node_sid(struct selinux_state *state,
if (c) {
if (!c->sid[0]) {
- rc = sidtab_context_to_sid(sidtab,
+ rc = context_struct_to_sid(state,
&c->context[0],
&c->sid[0]);
if (rc)
@@ -2583,7 +2613,7 @@ int security_get_user_sids(struct selinux_state *state,
read_lock(&state->ss->policy_rwlock);
policydb = &state->ss->policydb;
- sidtab = &state->ss->sidtab;
+ sidtab = state->ss->sidtab;
context_init(&usercon);
@@ -2609,12 +2639,17 @@ int security_get_user_sids(struct selinux_state *state,
usercon.role = i + 1;
ebitmap_for_each_positive_bit(&role->types, tnode, j) {
usercon.type = j + 1;
+ /*
+ * The same context struct is reused here so the hash
+ * must be reset.
+ */
+ usercon.hash = 0;
if (mls_setup_user_range(policydb, fromcon, user,
&usercon))
continue;
- rc = sidtab_context_to_sid(sidtab, &usercon, &sid);
+ rc = context_struct_to_sid(state, &usercon, &sid);
if (rc)
goto out_unlock;
if (mynel < maxnel) {
@@ -2685,7 +2720,6 @@ static inline int __security_genfs_sid(struct selinux_state *state,
u32 *sid)
{
struct policydb *policydb = &state->ss->policydb;
- struct sidtab *sidtab = &state->ss->sidtab;
int len;
u16 sclass;
struct genfs *genfs;
@@ -2720,7 +2754,7 @@ static inline int __security_genfs_sid(struct selinux_state *state,
goto out;
if (!c->sid[0]) {
- rc = sidtab_context_to_sid(sidtab, &c->context[0], &c->sid[0]);
+ rc = context_struct_to_sid(state, &c->context[0], &c->sid[0]);
if (rc)
goto out;
}
@@ -2771,7 +2805,7 @@ int security_fs_use(struct selinux_state *state, struct super_block *sb)
read_lock(&state->ss->policy_rwlock);
policydb = &state->ss->policydb;
- sidtab = &state->ss->sidtab;
+ sidtab = state->ss->sidtab;
c = policydb->ocontexts[OCON_FSUSE];
while (c) {
@@ -2783,7 +2817,7 @@ int security_fs_use(struct selinux_state *state, struct super_block *sb)
if (c) {
sbsec->behavior = c->v.behavior;
if (!c->sid[0]) {
- rc = sidtab_context_to_sid(sidtab, &c->context[0],
+ rc = context_struct_to_sid(state, &c->context[0],
&c->sid[0]);
if (rc)
goto out;
@@ -2981,7 +3015,7 @@ int security_sid_mls_copy(struct selinux_state *state,
u32 sid, u32 mls_sid, u32 *new_sid)
{
struct policydb *policydb = &state->ss->policydb;
- struct sidtab *sidtab = &state->ss->sidtab;
+ struct sidtab *sidtab = state->ss->sidtab;
struct context *context1;
struct context *context2;
struct context newcon;
@@ -3037,8 +3071,7 @@ int security_sid_mls_copy(struct selinux_state *state,
goto out_unlock;
}
}
-
- rc = sidtab_context_to_sid(sidtab, &newcon, new_sid);
+ rc = context_struct_to_sid(state, &newcon, new_sid);
out_unlock:
read_unlock(&state->ss->policy_rwlock);
context_destroy(&newcon);
@@ -3072,7 +3105,7 @@ int security_net_peersid_resolve(struct selinux_state *state,
u32 *peer_sid)
{
struct policydb *policydb = &state->ss->policydb;
- struct sidtab *sidtab = &state->ss->sidtab;
+ struct sidtab *sidtab = state->ss->sidtab;
int rc;
struct context *nlbl_ctx;
struct context *xfrm_ctx;
@@ -3433,7 +3466,7 @@ int selinux_audit_rule_match(u32 sid, u32 field, u32 op, void *vrule,
goto out;
}
- ctxt = sidtab_search(&state->ss->sidtab, sid);
+ ctxt = sidtab_search(state->ss->sidtab, sid);
if (unlikely(!ctxt)) {
WARN_ONCE(1, "selinux_audit_rule_match: unrecognized SID %d\n",
sid);
@@ -3596,7 +3629,7 @@ int security_netlbl_secattr_to_sid(struct selinux_state *state,
u32 *sid)
{
struct policydb *policydb = &state->ss->policydb;
- struct sidtab *sidtab = &state->ss->sidtab;
+ struct sidtab *sidtab = state->ss->sidtab;
int rc;
struct context *ctx;
struct context ctx_new;
@@ -3632,7 +3665,7 @@ int security_netlbl_secattr_to_sid(struct selinux_state *state,
if (!mls_context_isvalid(policydb, &ctx_new))
goto out_free;
- rc = sidtab_context_to_sid(sidtab, &ctx_new, sid);
+ rc = context_struct_to_sid(state, &ctx_new, sid);
if (rc)
goto out_free;
@@ -3674,7 +3707,7 @@ int security_netlbl_sid_to_secattr(struct selinux_state *state,
read_lock(&state->ss->policy_rwlock);
rc = -ENOENT;
- ctx = sidtab_search(&state->ss->sidtab, sid);
+ ctx = sidtab_search(state->ss->sidtab, sid);
if (ctx == NULL)
goto out;
diff --git a/security/selinux/ss/services.h b/security/selinux/ss/services.h
index 24c7bdc..fc40640 100644
--- a/security/selinux/ss/services.h
+++ b/security/selinux/ss/services.h
@@ -8,7 +8,7 @@
#define _SS_SERVICES_H_
#include "policydb.h"
-#include "sidtab.h"
+#include "context.h"
/* Mapping for a single class */
struct selinux_mapping {
@@ -24,7 +24,7 @@ struct selinux_map {
};
struct selinux_ss {
- struct sidtab sidtab;
+ struct sidtab *sidtab;
struct policydb policydb;
rwlock_t policy_rwlock;
u32 latest_granting;
@@ -39,4 +39,6 @@ void services_compute_xperms_drivers(struct extended_perms *xperms,
void services_compute_xperms_decision(struct extended_perms_decision *xpermd,
struct avtab_node *node);
+int context_add_hash(struct policydb *policydb, struct context *context);
+
#endif /* _SS_SERVICES_H_ */
diff --git a/security/selinux/ss/sidtab.c b/security/selinux/ss/sidtab.c
index fd75a12..d9d8599 100644
--- a/security/selinux/ss/sidtab.c
+++ b/security/selinux/ss/sidtab.c
@@ -2,108 +2,226 @@
/*
* Implementation of the SID table type.
*
- * Author : Stephen Smalley, <sds@tycho.nsa.gov>
+ * Original author: Stephen Smalley, <sds@tycho.nsa.gov>
+ * Author: Ondrej Mosnacek, <omosnacek@gmail.com>
+ *
+ * Copyright (C) 2018 Red Hat, Inc.
*/
+#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/slab.h>
+#include <linux/sched.h>
#include <linux/spinlock.h>
-#include <linux/errno.h>
+#include <asm/barrier.h>
#include "flask.h"
#include "security.h"
#include "sidtab.h"
-#define SIDTAB_HASH(sid) \
-(sid & SIDTAB_HASH_MASK)
+#define index_to_sid(index) (index + SECINITSID_NUM + 1)
+#define sid_to_index(sid) (sid - (SECINITSID_NUM + 1))
int sidtab_init(struct sidtab *s)
{
- int i;
+ u32 i;
- s->htable = kmalloc_array(SIDTAB_SIZE, sizeof(*s->htable), GFP_ATOMIC);
- if (!s->htable)
- return -ENOMEM;
- for (i = 0; i < SIDTAB_SIZE; i++)
- s->htable[i] = NULL;
- s->nel = 0;
- s->next_sid = 1;
- s->shutdown = 0;
+ memset(s->roots, 0, sizeof(s->roots));
+
+ for (i = 0; i < SECINITSID_NUM; i++)
+ s->isids[i].set = 0;
+
+ s->count = 0;
+ s->convert = NULL;
+ hash_init(s->context_to_sid);
+
spin_lock_init(&s->lock);
return 0;
}
-int sidtab_insert(struct sidtab *s, u32 sid, struct context *context)
+static u32 context_to_sid(struct sidtab *s, struct context *context)
{
- int hvalue;
- struct sidtab_node *prev, *cur, *newnode;
+ struct sidtab_entry_leaf *entry;
+ u32 sid = 0;
- if (!s)
- return -ENOMEM;
+ rcu_read_lock();
+ hash_for_each_possible_rcu(s->context_to_sid, entry, list,
+ context->hash) {
+ if (context_cmp(&entry->context, context)) {
+ sid = entry->sid;
+ break;
+ }
+ }
+ rcu_read_unlock();
+ return sid;
+}
- hvalue = SIDTAB_HASH(sid);
- prev = NULL;
- cur = s->htable[hvalue];
- while (cur && sid > cur->sid) {
- prev = cur;
- cur = cur->next;
+int sidtab_set_initial(struct sidtab *s, u32 sid, struct context *context)
+{
+ struct sidtab_isid_entry *entry;
+ int rc;
+
+ if (sid == 0 || sid > SECINITSID_NUM)
+ return -EINVAL;
+
+ entry = &s->isids[sid - 1];
+
+ rc = context_cpy(&entry->leaf.context, context);
+ if (rc)
+ return rc;
+
+ entry->set = 1;
+
+ /*
+ * Multiple initial sids may map to the same context. Check that this
+ * context is not already represented in the context_to_sid hashtable
+ * to avoid duplicate entries and long linked lists upon hash
+ * collision.
+ */
+ if (!context_to_sid(s, context)) {
+ entry->leaf.sid = sid;
+ hash_add(s->context_to_sid, &entry->leaf.list, context->hash);
}
- if (cur && sid == cur->sid)
- return -EEXIST;
-
- newnode = kmalloc(sizeof(*newnode), GFP_ATOMIC);
- if (!newnode)
- return -ENOMEM;
-
- newnode->sid = sid;
- if (context_cpy(&newnode->context, context)) {
- kfree(newnode);
- return -ENOMEM;
- }
-
- if (prev) {
- newnode->next = prev->next;
- wmb();
- prev->next = newnode;
- } else {
- newnode->next = s->htable[hvalue];
- wmb();
- s->htable[hvalue] = newnode;
- }
-
- s->nel++;
- if (sid >= s->next_sid)
- s->next_sid = sid + 1;
return 0;
}
+int sidtab_hash_stats(struct sidtab *sidtab, char *page)
+{
+ int i;
+ int chain_len = 0;
+ int slots_used = 0;
+ int entries = 0;
+ int max_chain_len = 0;
+ int cur_bucket = 0;
+ struct sidtab_entry_leaf *entry;
+
+ rcu_read_lock();
+ hash_for_each_rcu(sidtab->context_to_sid, i, entry, list) {
+ entries++;
+ if (i == cur_bucket) {
+ chain_len++;
+ if (chain_len == 1)
+ slots_used++;
+ } else {
+ cur_bucket = i;
+ if (chain_len > max_chain_len)
+ max_chain_len = chain_len;
+ chain_len = 0;
+ }
+ }
+ rcu_read_unlock();
+
+ if (chain_len > max_chain_len)
+ max_chain_len = chain_len;
+
+ return scnprintf(page, PAGE_SIZE, "entries: %d\nbuckets used: %d/%d\n"
+ "longest chain: %d\n", entries,
+ slots_used, SIDTAB_HASH_BUCKETS, max_chain_len);
+}
+
+static u32 sidtab_level_from_count(u32 count)
+{
+ u32 capacity = SIDTAB_LEAF_ENTRIES;
+ u32 level = 0;
+
+ while (count > capacity) {
+ capacity <<= SIDTAB_INNER_SHIFT;
+ ++level;
+ }
+ return level;
+}
+
+static int sidtab_alloc_roots(struct sidtab *s, u32 level)
+{
+ u32 l;
+
+ if (!s->roots[0].ptr_leaf) {
+ s->roots[0].ptr_leaf = kzalloc(SIDTAB_NODE_ALLOC_SIZE,
+ GFP_ATOMIC);
+ if (!s->roots[0].ptr_leaf)
+ return -ENOMEM;
+ }
+ for (l = 1; l <= level; ++l)
+ if (!s->roots[l].ptr_inner) {
+ s->roots[l].ptr_inner = kzalloc(SIDTAB_NODE_ALLOC_SIZE,
+ GFP_ATOMIC);
+ if (!s->roots[l].ptr_inner)
+ return -ENOMEM;
+ s->roots[l].ptr_inner->entries[0] = s->roots[l - 1];
+ }
+ return 0;
+}
+
+static struct sidtab_entry_leaf *sidtab_do_lookup(struct sidtab *s, u32 index,
+ int alloc)
+{
+ union sidtab_entry_inner *entry;
+ u32 level, capacity_shift, leaf_index = index / SIDTAB_LEAF_ENTRIES;
+
+ /* find the level of the subtree we need */
+ level = sidtab_level_from_count(index + 1);
+ capacity_shift = level * SIDTAB_INNER_SHIFT;
+
+ /* allocate roots if needed */
+ if (alloc && sidtab_alloc_roots(s, level) != 0)
+ return NULL;
+
+ /* lookup inside the subtree */
+ entry = &s->roots[level];
+ while (level != 0) {
+ capacity_shift -= SIDTAB_INNER_SHIFT;
+ --level;
+
+ entry = &entry->ptr_inner->entries[leaf_index >> capacity_shift];
+ leaf_index &= ((u32)1 << capacity_shift) - 1;
+
+ if (!entry->ptr_inner) {
+ if (alloc)
+ entry->ptr_inner = kzalloc(SIDTAB_NODE_ALLOC_SIZE,
+ GFP_ATOMIC);
+ if (!entry->ptr_inner)
+ return NULL;
+ }
+ }
+ if (!entry->ptr_leaf) {
+ if (alloc)
+ entry->ptr_leaf = kzalloc(SIDTAB_NODE_ALLOC_SIZE,
+ GFP_ATOMIC);
+ if (!entry->ptr_leaf)
+ return NULL;
+ }
+ return &entry->ptr_leaf->entries[index % SIDTAB_LEAF_ENTRIES];
+}
+
+static struct context *sidtab_lookup(struct sidtab *s, u32 index)
+{
+ /* read entries only after reading count */
+ u32 count = smp_load_acquire(&s->count);
+
+ if (index >= count)
+ return NULL;
+
+ return &sidtab_do_lookup(s, index, 0)->context;
+}
+
+static struct context *sidtab_lookup_initial(struct sidtab *s, u32 sid)
+{
+ return s->isids[sid - 1].set ? &s->isids[sid - 1].leaf.context : NULL;
+}
+
static struct context *sidtab_search_core(struct sidtab *s, u32 sid, int force)
{
- int hvalue;
- struct sidtab_node *cur;
+ struct context *context;
- if (!s)
- return NULL;
-
- hvalue = SIDTAB_HASH(sid);
- cur = s->htable[hvalue];
- while (cur && sid > cur->sid)
- cur = cur->next;
-
- if (force && cur && sid == cur->sid && cur->context.len)
- return &cur->context;
-
- if (!cur || sid != cur->sid || cur->context.len) {
- /* Remap invalid SIDs to the unlabeled SID. */
- sid = SECINITSID_UNLABELED;
- hvalue = SIDTAB_HASH(sid);
- cur = s->htable[hvalue];
- while (cur && sid > cur->sid)
- cur = cur->next;
- if (!cur || sid != cur->sid)
- return NULL;
+ if (sid != 0) {
+ if (sid > SECINITSID_NUM)
+ context = sidtab_lookup(s, sid_to_index(sid));
+ else
+ context = sidtab_lookup_initial(s, sid);
+ if (context && (!context->len || force))
+ return context;
}
- return &cur->context;
+ return sidtab_lookup_initial(s, SECINITSID_UNLABELED);
}
struct context *sidtab_search(struct sidtab *s, u32 sid)
@@ -116,191 +234,252 @@ struct context *sidtab_search_force(struct sidtab *s, u32 sid)
return sidtab_search_core(s, sid, 1);
}
-int sidtab_map(struct sidtab *s,
- int (*apply) (u32 sid,
- struct context *context,
- void *args),
- void *args)
+int sidtab_context_to_sid(struct sidtab *s, struct context *context,
+ u32 *sid)
{
- int i, rc = 0;
- struct sidtab_node *cur;
+ unsigned long flags;
+ u32 count;
+ struct sidtab_convert_params *convert;
+ struct sidtab_entry_leaf *dst, *dst_convert;
+ int rc;
- if (!s)
- goto out;
+ *sid = context_to_sid(s, context);
+ if (*sid)
+ return 0;
- for (i = 0; i < SIDTAB_SIZE; i++) {
- cur = s->htable[i];
- while (cur) {
- rc = apply(cur->sid, &cur->context, args);
- if (rc)
- goto out;
- cur = cur->next;
+ /* lock-free search failed: lock, re-search, and insert if not found */
+ spin_lock_irqsave(&s->lock, flags);
+
+ rc = 0;
+ *sid = context_to_sid(s, context);
+ if (*sid)
+ goto out_unlock;
+
+ /* read entries only after reading count */
+ count = smp_load_acquire(&s->count);
+ convert = s->convert;
+
+ /* bail out if we already reached max entries */
+ rc = -EOVERFLOW;
+ if (count >= SIDTAB_MAX)
+ goto out_unlock;
+
+ /* insert context into new entry */
+ rc = -ENOMEM;
+ dst = sidtab_do_lookup(s, count, 1);
+ if (!dst)
+ goto out_unlock;
+
+ dst->sid = index_to_sid(count);
+
+ rc = context_cpy(&dst->context, context);
+ if (rc)
+ goto out_unlock;
+
+ /*
+ * if we are building a new sidtab, we need to convert the context
+ * and insert it there as well
+ */
+ if (convert) {
+ rc = -ENOMEM;
+ dst_convert = sidtab_do_lookup(convert->target, count, 1);
+ if (!dst_convert) {
+ context_destroy(&dst->context);
+ goto out_unlock;
}
+
+ rc = convert->func(context, &dst_convert->context,
+ convert->args);
+ if (rc) {
+ context_destroy(&dst->context);
+ goto out_unlock;
+ }
+ dst_convert->sid = index_to_sid(count);
+ convert->target->count = count + 1;
+
+ hash_add_rcu(convert->target->context_to_sid,
+ &dst_convert->list, dst_convert->context.hash);
}
-out:
+
+ if (context->len)
+ pr_info("SELinux: Context %s is not valid (left unmapped).\n",
+ context->str);
+
+ *sid = index_to_sid(count);
+
+ /* write entries before updating count */
+ smp_store_release(&s->count, count + 1);
+ hash_add_rcu(s->context_to_sid, &dst->list, dst->context.hash);
+
+ rc = 0;
+out_unlock:
+ spin_unlock_irqrestore(&s->lock, flags);
return rc;
}
-static void sidtab_update_cache(struct sidtab *s, struct sidtab_node *n, int loc)
+static void sidtab_convert_hashtable(struct sidtab *s, u32 count)
{
- BUG_ON(loc >= SIDTAB_CACHE_LEN);
+ struct sidtab_entry_leaf *entry;
+ u32 i;
- while (loc > 0) {
- s->cache[loc] = s->cache[loc - 1];
- loc--;
+ for (i = 0; i < count; i++) {
+ entry = sidtab_do_lookup(s, i, 0);
+ entry->sid = index_to_sid(i);
+
+ hash_add_rcu(s->context_to_sid, &entry->list,
+ entry->context.hash);
+
}
- s->cache[0] = n;
}
-static inline u32 sidtab_search_context(struct sidtab *s,
- struct context *context)
+static int sidtab_convert_tree(union sidtab_entry_inner *edst,
+ union sidtab_entry_inner *esrc,
+ u32 *pos, u32 count, u32 level,
+ struct sidtab_convert_params *convert)
{
- int i;
- struct sidtab_node *cur;
+ int rc;
+ u32 i;
- for (i = 0; i < SIDTAB_SIZE; i++) {
- cur = s->htable[i];
- while (cur) {
- if (context_cmp(&cur->context, context)) {
- sidtab_update_cache(s, cur, SIDTAB_CACHE_LEN - 1);
- return cur->sid;
- }
- cur = cur->next;
+ if (level != 0) {
+ if (!edst->ptr_inner) {
+ edst->ptr_inner = kzalloc(SIDTAB_NODE_ALLOC_SIZE,
+ GFP_KERNEL);
+ if (!edst->ptr_inner)
+ return -ENOMEM;
}
+ i = 0;
+ while (i < SIDTAB_INNER_ENTRIES && *pos < count) {
+ rc = sidtab_convert_tree(&edst->ptr_inner->entries[i],
+ &esrc->ptr_inner->entries[i],
+ pos, count, level - 1,
+ convert);
+ if (rc)
+ return rc;
+ i++;
+ }
+ } else {
+ if (!edst->ptr_leaf) {
+ edst->ptr_leaf = kzalloc(SIDTAB_NODE_ALLOC_SIZE,
+ GFP_KERNEL);
+ if (!edst->ptr_leaf)
+ return -ENOMEM;
+ }
+ i = 0;
+ while (i < SIDTAB_LEAF_ENTRIES && *pos < count) {
+ rc = convert->func(&esrc->ptr_leaf->entries[i].context,
+ &edst->ptr_leaf->entries[i].context,
+ convert->args);
+ if (rc)
+ return rc;
+ (*pos)++;
+ i++;
+ }
+ cond_resched();
}
+
return 0;
}
-static inline u32 sidtab_search_cache(struct sidtab *s, struct context *context)
+int sidtab_convert(struct sidtab *s, struct sidtab_convert_params *params)
{
- int i;
- struct sidtab_node *node;
-
- for (i = 0; i < SIDTAB_CACHE_LEN; i++) {
- node = s->cache[i];
- if (unlikely(!node))
- return 0;
- if (context_cmp(&node->context, context)) {
- sidtab_update_cache(s, node, i);
- return node->sid;
- }
- }
- return 0;
-}
-
-int sidtab_context_to_sid(struct sidtab *s,
- struct context *context,
- u32 *out_sid)
-{
- u32 sid;
- int ret = 0;
unsigned long flags;
+ u32 count, level, pos;
+ int rc;
- *out_sid = SECSID_NULL;
+ spin_lock_irqsave(&s->lock, flags);
- sid = sidtab_search_cache(s, context);
- if (!sid)
- sid = sidtab_search_context(s, context);
- if (!sid) {
- spin_lock_irqsave(&s->lock, flags);
- /* Rescan now that we hold the lock. */
- sid = sidtab_search_context(s, context);
- if (sid)
- goto unlock_out;
- /* No SID exists for the context. Allocate a new one. */
- if (s->next_sid == UINT_MAX || s->shutdown) {
- ret = -ENOMEM;
- goto unlock_out;
- }
- sid = s->next_sid++;
- if (context->len)
- pr_info("SELinux: Context %s is not valid (left unmapped).\n",
- context->str);
- ret = sidtab_insert(s, sid, context);
- if (ret)
- s->next_sid--;
-unlock_out:
+ /* concurrent policy loads are not allowed */
+ if (s->convert) {
spin_unlock_irqrestore(&s->lock, flags);
+ return -EBUSY;
}
- if (ret)
- return ret;
+ count = s->count;
+ level = sidtab_level_from_count(count);
- *out_sid = sid;
+ /* allocate last leaf in the new sidtab (to avoid race with
+ * live convert)
+ */
+ rc = sidtab_do_lookup(params->target, count - 1, 1) ? 0 : -ENOMEM;
+ if (rc) {
+ spin_unlock_irqrestore(&s->lock, flags);
+ return rc;
+ }
+
+ /* set count in case no new entries are added during conversion */
+ params->target->count = count;
+
+ /* enable live convert of new entries */
+ s->convert = params;
+
+ /* we can safely convert the tree outside the lock */
+ spin_unlock_irqrestore(&s->lock, flags);
+
+ pr_info("SELinux: Converting %u SID table entries...\n", count);
+
+ /* convert all entries not covered by live convert */
+ pos = 0;
+ rc = sidtab_convert_tree(¶ms->target->roots[level],
+ &s->roots[level], &pos, count, level, params);
+ if (rc) {
+ /* we need to keep the old table - disable live convert */
+ spin_lock_irqsave(&s->lock, flags);
+ s->convert = NULL;
+ spin_unlock_irqrestore(&s->lock, flags);
+ return rc;
+ }
+ /*
+ * The hashtable can also be modified in sidtab_context_to_sid()
+ * so we must re-acquire the lock here.
+ */
+ spin_lock_irqsave(&s->lock, flags);
+ sidtab_convert_hashtable(params->target, count);
+ spin_unlock_irqrestore(&s->lock, flags);
+
return 0;
}
-void sidtab_hash_eval(struct sidtab *h, char *tag)
+static void sidtab_destroy_tree(union sidtab_entry_inner entry, u32 level)
{
- int i, chain_len, slots_used, max_chain_len;
- struct sidtab_node *cur;
+ u32 i;
- slots_used = 0;
- max_chain_len = 0;
- for (i = 0; i < SIDTAB_SIZE; i++) {
- cur = h->htable[i];
- if (cur) {
- slots_used++;
- chain_len = 0;
- while (cur) {
- chain_len++;
- cur = cur->next;
- }
+ if (level != 0) {
+ struct sidtab_node_inner *node = entry.ptr_inner;
- if (chain_len > max_chain_len)
- max_chain_len = chain_len;
- }
+ if (!node)
+ return;
+
+ for (i = 0; i < SIDTAB_INNER_ENTRIES; i++)
+ sidtab_destroy_tree(node->entries[i], level - 1);
+ kfree(node);
+ } else {
+ struct sidtab_node_leaf *node = entry.ptr_leaf;
+
+ if (!node)
+ return;
+
+ for (i = 0; i < SIDTAB_LEAF_ENTRIES; i++)
+ context_destroy(&node->entries[i].context);
+ kfree(node);
}
-
- pr_debug("%s: %d entries and %d/%d buckets used, longest "
- "chain length %d\n", tag, h->nel, slots_used, SIDTAB_SIZE,
- max_chain_len);
}
void sidtab_destroy(struct sidtab *s)
{
- int i;
- struct sidtab_node *cur, *temp;
+ u32 i, level;
- if (!s)
- return;
+ for (i = 0; i < SECINITSID_NUM; i++)
+ if (s->isids[i].set)
+ context_destroy(&s->isids[i].leaf.context);
- for (i = 0; i < SIDTAB_SIZE; i++) {
- cur = s->htable[i];
- while (cur) {
- temp = cur;
- cur = cur->next;
- context_destroy(&temp->context);
- kfree(temp);
- }
- s->htable[i] = NULL;
- }
- kfree(s->htable);
- s->htable = NULL;
- s->nel = 0;
- s->next_sid = 1;
-}
+ level = SIDTAB_MAX_LEVEL;
+ while (level && !s->roots[level].ptr_inner)
+ --level;
-void sidtab_set(struct sidtab *dst, struct sidtab *src)
-{
- unsigned long flags;
- int i;
-
- spin_lock_irqsave(&src->lock, flags);
- dst->htable = src->htable;
- dst->nel = src->nel;
- dst->next_sid = src->next_sid;
- dst->shutdown = 0;
- for (i = 0; i < SIDTAB_CACHE_LEN; i++)
- dst->cache[i] = NULL;
- spin_unlock_irqrestore(&src->lock, flags);
-}
-
-void sidtab_shutdown(struct sidtab *s)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&s->lock, flags);
- s->shutdown = 1;
- spin_unlock_irqrestore(&s->lock, flags);
+ sidtab_destroy_tree(s->roots[level], level);
+ /*
+ * The context_to_sid hashtable's objects are all shared
+ * with the isids array and context tree, and so don't need
+ * to be cleaned up here.
+ */
}
diff --git a/security/selinux/ss/sidtab.h b/security/selinux/ss/sidtab.h
index a1a1d26..e280940 100644
--- a/security/selinux/ss/sidtab.h
+++ b/security/selinux/ss/sidtab.h
@@ -1,56 +1,111 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
- * A security identifier table (sidtab) is a hash table
+ * A security identifier table (sidtab) is a lookup table
* of security context structures indexed by SID value.
*
- * Author : Stephen Smalley, <sds@tycho.nsa.gov>
+ * Original author: Stephen Smalley, <sds@tycho.nsa.gov>
+ * Author: Ondrej Mosnacek, <omosnacek@gmail.com>
+ *
+ * Copyright (C) 2018 Red Hat, Inc.
*/
#ifndef _SS_SIDTAB_H_
#define _SS_SIDTAB_H_
+#include <linux/spinlock_types.h>
+#include <linux/log2.h>
+#include <linux/hashtable.h>
+
#include "context.h"
-struct sidtab_node {
- u32 sid; /* security identifier */
- struct context context; /* security context structure */
- struct sidtab_node *next;
+struct sidtab_entry_leaf {
+ u32 sid;
+ struct context context;
+ struct hlist_node list;
};
-#define SIDTAB_HASH_BITS 7
-#define SIDTAB_HASH_BUCKETS (1 << SIDTAB_HASH_BITS)
-#define SIDTAB_HASH_MASK (SIDTAB_HASH_BUCKETS-1)
+struct sidtab_node_inner;
+struct sidtab_node_leaf;
-#define SIDTAB_SIZE SIDTAB_HASH_BUCKETS
+union sidtab_entry_inner {
+ struct sidtab_node_inner *ptr_inner;
+ struct sidtab_node_leaf *ptr_leaf;
+};
+
+/* align node size to page boundary */
+#define SIDTAB_NODE_ALLOC_SHIFT PAGE_SHIFT
+#define SIDTAB_NODE_ALLOC_SIZE PAGE_SIZE
+
+#define size_to_shift(size) ((size) == 1 ? 1 : (const_ilog2((size) - 1) + 1))
+
+#define SIDTAB_INNER_SHIFT \
+ (SIDTAB_NODE_ALLOC_SHIFT - size_to_shift(sizeof(union sidtab_entry_inner)))
+#define SIDTAB_INNER_ENTRIES ((size_t)1 << SIDTAB_INNER_SHIFT)
+#define SIDTAB_LEAF_ENTRIES \
+ (SIDTAB_NODE_ALLOC_SIZE / sizeof(struct sidtab_entry_leaf))
+
+#define SIDTAB_MAX_BITS 32
+#define SIDTAB_MAX U32_MAX
+/* ensure enough tree levels for SIDTAB_MAX entries */
+#define SIDTAB_MAX_LEVEL \
+ DIV_ROUND_UP(SIDTAB_MAX_BITS - size_to_shift(SIDTAB_LEAF_ENTRIES), \
+ SIDTAB_INNER_SHIFT)
+
+struct sidtab_node_leaf {
+ struct sidtab_entry_leaf entries[SIDTAB_LEAF_ENTRIES];
+};
+
+struct sidtab_node_inner {
+ union sidtab_entry_inner entries[SIDTAB_INNER_ENTRIES];
+};
+
+struct sidtab_isid_entry {
+ int set;
+ struct sidtab_entry_leaf leaf;
+};
+
+struct sidtab_convert_params {
+ int (*func)(struct context *oldc, struct context *newc, void *args);
+ void *args;
+ struct sidtab *target;
+};
+
+#define SIDTAB_HASH_BITS CONFIG_SECURITY_SELINUX_SIDTAB_HASH_BITS
+#define SIDTAB_HASH_BUCKETS (1 << SIDTAB_HASH_BITS)
struct sidtab {
- struct sidtab_node **htable;
- unsigned int nel; /* number of elements */
- unsigned int next_sid; /* next SID to allocate */
- unsigned char shutdown;
-#define SIDTAB_CACHE_LEN 3
- struct sidtab_node *cache[SIDTAB_CACHE_LEN];
+ /*
+ * lock-free read access only for as many items as a prior read of
+ * 'count'
+ */
+ union sidtab_entry_inner roots[SIDTAB_MAX_LEVEL + 1];
+ /*
+ * access atomically via {READ|WRITE}_ONCE(); only increment under
+ * spinlock
+ */
+ u32 count;
+ /* access only under spinlock */
+ struct sidtab_convert_params *convert;
spinlock_t lock;
+
+ /* index == SID - 1 (no entry for SECSID_NULL) */
+ struct sidtab_isid_entry isids[SECINITSID_NUM];
+
+ /* Hash table for fast reverse context-to-sid lookups. */
+ DECLARE_HASHTABLE(context_to_sid, SIDTAB_HASH_BITS);
};
int sidtab_init(struct sidtab *s);
-int sidtab_insert(struct sidtab *s, u32 sid, struct context *context);
+int sidtab_set_initial(struct sidtab *s, u32 sid, struct context *context);
struct context *sidtab_search(struct sidtab *s, u32 sid);
struct context *sidtab_search_force(struct sidtab *s, u32 sid);
-int sidtab_map(struct sidtab *s,
- int (*apply) (u32 sid,
- struct context *context,
- void *args),
- void *args);
+int sidtab_convert(struct sidtab *s, struct sidtab_convert_params *params);
-int sidtab_context_to_sid(struct sidtab *s,
- struct context *context,
- u32 *sid);
+int sidtab_context_to_sid(struct sidtab *s, struct context *context, u32 *sid);
-void sidtab_hash_eval(struct sidtab *h, char *tag);
void sidtab_destroy(struct sidtab *s);
-void sidtab_set(struct sidtab *dst, struct sidtab *src);
-void sidtab_shutdown(struct sidtab *s);
+
+int sidtab_hash_stats(struct sidtab *sidtab, char *page);
#endif /* _SS_SIDTAB_H_ */
diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c
index 68f016e..a90c4a9 100644
--- a/sound/core/compress_offload.c
+++ b/sound/core/compress_offload.c
@@ -183,7 +183,7 @@ static int snd_compr_update_tstamp(struct snd_compr_stream *stream,
if (!stream->ops->pointer)
return -ENOTSUPP;
stream->ops->pointer(stream, tstamp);
- pr_debug("dsp consumed till %d total %d bytes\n",
+ pr_debug("dsp consumed till %d total %llu bytes\n",
tstamp->byte_offset, tstamp->copied_total);
if (stream->direction == SND_COMPRESS_PLAYBACK)
stream->runtime->total_bytes_transferred = tstamp->copied_total;
@@ -723,10 +723,8 @@ static int snd_compr_stop(struct snd_compr_stream *stream)
retval = stream->ops->trigger(stream, SNDRV_PCM_TRIGGER_STOP);
if (!retval) {
- /* clear flags and stop any drain wait */
- stream->partial_drain = false;
- stream->metadata_set = false;
- snd_compr_drain_notify(stream);
+ stream->runtime->state = SNDRV_PCM_STATE_SETUP;
+ wake_up(&stream->runtime->sleep);
stream->runtime->total_bytes_available = 0;
stream->runtime->total_bytes_transferred = 0;
}
@@ -772,41 +770,6 @@ int snd_compr_stop_error(struct snd_compr_stream *stream,
}
EXPORT_SYMBOL_GPL(snd_compr_stop_error);
-static int snd_compress_wait_for_drain(struct snd_compr_stream *stream)
-{
- int ret;
-
- /*
- * We are called with lock held. So drop the lock while we wait for
- * drain complete notification from the driver
- *
- * It is expected that driver will notify the drain completion and then
- * stream will be moved to SETUP state, even if draining resulted in an
- * error. We can trigger next track after this.
- */
- stream->runtime->state = SNDRV_PCM_STATE_DRAINING;
- mutex_unlock(&stream->device->lock);
-
- /* we wait for drain to complete here, drain can return when
- * interruption occurred, wait returned error or success.
- * For the first two cases we don't do anything different here and
- * return after waking up
- */
-
- ret = wait_event_interruptible(stream->runtime->sleep,
- (stream->runtime->state != SNDRV_PCM_STATE_DRAINING));
- if (ret == -ERESTARTSYS)
- pr_debug("wait aborted by a signal\n");
- else if (ret)
- pr_debug("wait for drain failed with %d\n", ret);
-
-
- wake_up(&stream->runtime->sleep);
- mutex_lock(&stream->device->lock);
-
- return ret;
-}
-
static int snd_compr_drain(struct snd_compr_stream *stream)
{
int retval;
@@ -824,13 +787,13 @@ static int snd_compr_drain(struct snd_compr_stream *stream)
}
retval = stream->ops->trigger(stream, SND_COMPR_TRIGGER_DRAIN);
- if (retval) {
- pr_debug("SND_COMPR_TRIGGER_DRAIN failed %d\n", retval);
+ if (!retval) {
+ stream->runtime->state = SNDRV_PCM_STATE_DRAINING;
wake_up(&stream->runtime->sleep);
return retval;
}
- return snd_compress_wait_for_drain(stream);
+ return retval;
}
static int snd_compr_next_track(struct snd_compr_stream *stream)
@@ -883,16 +846,71 @@ static int snd_compr_partial_drain(struct snd_compr_stream *stream)
if (stream->next_track == false)
return -EPERM;
- stream->partial_drain = true;
retval = stream->ops->trigger(stream, SND_COMPR_TRIGGER_PARTIAL_DRAIN);
- if (retval) {
- pr_debug("Partial drain returned failure\n");
- wake_up(&stream->runtime->sleep);
- return retval;
- }
stream->next_track = false;
- return snd_compress_wait_for_drain(stream);
+ return retval;
+}
+
+static int snd_compr_set_next_track_param(struct snd_compr_stream *stream,
+ unsigned long arg)
+{
+ union snd_codec_options codec_options;
+ int retval;
+
+ /* set next track params when stream is running or has been setup */
+ if (stream->runtime->state != SNDRV_PCM_STATE_SETUP &&
+ stream->runtime->state != SNDRV_PCM_STATE_RUNNING)
+ return -EPERM;
+
+ if (copy_from_user(&codec_options, (void __user *)arg,
+ sizeof(codec_options)))
+ return -EFAULT;
+
+ retval = stream->ops->set_next_track_param(stream, &codec_options);
+ return retval;
+}
+
+static int snd_compress_simple_ioctls(struct file *file,
+ struct snd_compr_stream *stream,
+ unsigned int cmd, unsigned long arg)
+{
+ int retval = -ENOTTY;
+
+ switch (_IOC_NR(cmd)) {
+ case _IOC_NR(SNDRV_COMPRESS_IOCTL_VERSION):
+ retval = put_user(SNDRV_COMPRESS_VERSION,
+ (int __user *)arg) ? -EFAULT : 0;
+ break;
+
+ case _IOC_NR(SNDRV_COMPRESS_GET_CAPS):
+ retval = snd_compr_get_caps(stream, arg);
+ break;
+
+#ifndef COMPR_CODEC_CAPS_OVERFLOW
+ case _IOC_NR(SNDRV_COMPRESS_GET_CODEC_CAPS):
+ retval = snd_compr_get_codec_caps(stream, arg);
+ break;
+#endif
+
+ case _IOC_NR(SNDRV_COMPRESS_TSTAMP):
+ retval = snd_compr_tstamp(stream, arg);
+ break;
+
+ case _IOC_NR(SNDRV_COMPRESS_AVAIL):
+ retval = snd_compr_ioctl_avail(stream, arg);
+ break;
+
+ case _IOC_NR(SNDRV_COMPRESS_DRAIN):
+ retval = snd_compr_drain(stream);
+ break;
+
+ case _IOC_NR(SNDRV_COMPRESS_PARTIAL_DRAIN):
+ retval = snd_compr_partial_drain(stream);
+ break;
+ }
+
+ return retval;
}
static long snd_compr_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
@@ -908,58 +926,50 @@ static long snd_compr_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
mutex_lock(&stream->device->lock);
switch (_IOC_NR(cmd)) {
- case _IOC_NR(SNDRV_COMPRESS_IOCTL_VERSION):
- retval = put_user(SNDRV_COMPRESS_VERSION,
- (int __user *)arg) ? -EFAULT : 0;
- break;
- case _IOC_NR(SNDRV_COMPRESS_GET_CAPS):
- retval = snd_compr_get_caps(stream, arg);
- break;
-#ifndef COMPR_CODEC_CAPS_OVERFLOW
- case _IOC_NR(SNDRV_COMPRESS_GET_CODEC_CAPS):
- retval = snd_compr_get_codec_caps(stream, arg);
- break;
-#endif
case _IOC_NR(SNDRV_COMPRESS_SET_PARAMS):
retval = snd_compr_set_params(stream, arg);
break;
+
case _IOC_NR(SNDRV_COMPRESS_GET_PARAMS):
retval = snd_compr_get_params(stream, arg);
break;
+
case _IOC_NR(SNDRV_COMPRESS_SET_METADATA):
retval = snd_compr_set_metadata(stream, arg);
break;
+
case _IOC_NR(SNDRV_COMPRESS_GET_METADATA):
retval = snd_compr_get_metadata(stream, arg);
break;
- case _IOC_NR(SNDRV_COMPRESS_TSTAMP):
- retval = snd_compr_tstamp(stream, arg);
- break;
- case _IOC_NR(SNDRV_COMPRESS_AVAIL):
- retval = snd_compr_ioctl_avail(stream, arg);
- break;
+
case _IOC_NR(SNDRV_COMPRESS_PAUSE):
retval = snd_compr_pause(stream);
break;
+
case _IOC_NR(SNDRV_COMPRESS_RESUME):
retval = snd_compr_resume(stream);
break;
+
case _IOC_NR(SNDRV_COMPRESS_START):
retval = snd_compr_start(stream);
break;
+
case _IOC_NR(SNDRV_COMPRESS_STOP):
retval = snd_compr_stop(stream);
break;
- case _IOC_NR(SNDRV_COMPRESS_DRAIN):
- retval = snd_compr_drain(stream);
- break;
- case _IOC_NR(SNDRV_COMPRESS_PARTIAL_DRAIN):
- retval = snd_compr_partial_drain(stream);
- break;
+
case _IOC_NR(SNDRV_COMPRESS_NEXT_TRACK):
retval = snd_compr_next_track(stream);
break;
+ case _IOC_NR(SNDRV_COMPRESS_SET_NEXT_TRACK_PARAM):
+ retval = snd_compr_set_next_track_param(stream, arg);
+ break;
+
+ default:
+ mutex_unlock(&stream->device->lock);
+ return snd_compress_simple_ioctls(f, stream, cmd, arg);
+
}
mutex_unlock(&stream->device->lock);
return retval;
diff --git a/sound/core/info.c b/sound/core/info.c
index 3fa8336..eeb74bd 100644
--- a/sound/core/info.c
+++ b/sound/core/info.c
@@ -446,12 +446,23 @@ static const struct file_operations snd_info_text_entry_ops =
.read = seq_read,
};
-static struct snd_info_entry *create_subdir(struct module *mod,
- const char *name)
+/*
+ * snd_info_create_subdir - create and register a subdir for a given parent
+ * @mod: the module pointer
+ * @name: the module name
+ * @parent: the parent directory
+ *
+ * Creates and registers new subdir entry inside a given parent.
+ *
+ * Return: The pointer of the new instance, or NULL on failure.
+ */
+struct snd_info_entry *snd_info_create_subdir(struct module *mod,
+ const char *name,
+ struct snd_info_entry *parent)
{
struct snd_info_entry *entry;
- entry = snd_info_create_module_entry(mod, name, NULL);
+ entry = snd_info_create_module_entry(mod, name, parent);
if (!entry)
return NULL;
entry->mode = S_IFDIR | 0555;
@@ -461,6 +472,7 @@ static struct snd_info_entry *create_subdir(struct module *mod,
}
return entry;
}
+EXPORT_SYMBOL(snd_info_create_subdir);
static struct snd_info_entry *
snd_info_create_entry(const char *name, struct snd_info_entry *parent);
@@ -475,12 +487,12 @@ int __init snd_info_init(void)
if (!snd_proc_root->p)
goto error;
#ifdef CONFIG_SND_OSSEMUL
- snd_oss_root = create_subdir(THIS_MODULE, "oss");
+ snd_oss_root = snd_info_create_subdir(THIS_MODULE, "oss", NULL);
if (!snd_oss_root)
goto error;
#endif
#if IS_ENABLED(CONFIG_SND_SEQUENCER)
- snd_seq_root = create_subdir(THIS_MODULE, "seq");
+ snd_seq_root = snd_info_create_subdir(THIS_MODULE, "seq", NULL);
if (!snd_seq_root)
goto error;
#endif
@@ -516,7 +528,7 @@ int snd_info_card_create(struct snd_card *card)
return -ENXIO;
sprintf(str, "card%i", card->number);
- entry = create_subdir(card->module, str);
+ entry = snd_info_create_subdir(card->module, str, NULL);
if (!entry)
return -ENOMEM;
card->proc_root = entry;
@@ -619,7 +631,6 @@ int snd_info_card_free(struct snd_card *card)
return 0;
}
-
/**
* snd_info_get_line - read one line from the procfs buffer
* @buffer: the procfs buffer
diff --git a/sound/core/init.c b/sound/core/init.c
index 3eafa15..9e1a3f4 100644
--- a/sound/core/init.c
+++ b/sound/core/init.c
@@ -257,6 +257,7 @@ int snd_card_new(struct device *parent, int idx, const char *xid,
#endif
init_waitqueue_head(&card->remove_sleep);
+ init_waitqueue_head(&card->offline_poll_wait);
device_initialize(&card->card_dev);
card->card_dev.parent = parent;
card->card_dev.class = sound_class;
@@ -998,6 +999,25 @@ int snd_card_file_remove(struct snd_card *card, struct file *file)
}
EXPORT_SYMBOL(snd_card_file_remove);
+/**
+ * snd_card_change_online_state - mark card's online/offline state
+ * @card: Card to mark
+ * @online: whether online of offline
+ *
+ * Mutes the DAI DAC.
+ */
+void snd_card_change_online_state(struct snd_card *card, int online)
+{
+ snd_printd("snd card %s state change %d -> %d\n",
+ card->shortname, !card->offline, online);
+ card->offline = !online;
+ /* make sure offline is updated prior to wake up */
+ wmb();
+ xchg(&card->offline_change, 1);
+ wake_up_interruptible(&card->offline_poll_wait);
+}
+EXPORT_SYMBOL_GPL(snd_card_change_online_state);
+
#ifdef CONFIG_PM
/**
* snd_power_wait - wait until the power-state is changed.
diff --git a/sound/core/jack.c b/sound/core/jack.c
index 84c2a17..3a25295 100644
--- a/sound/core/jack.c
+++ b/sound/core/jack.c
@@ -33,13 +33,17 @@ struct snd_jack_kctl {
};
#ifdef CONFIG_SND_JACK_INPUT_DEV
-static int jack_switch_types[SND_JACK_SWITCH_TYPES] = {
+static int jack_switch_types[] = {
SW_HEADPHONE_INSERT,
SW_MICROPHONE_INSERT,
SW_LINEOUT_INSERT,
SW_JACK_PHYSICAL_INSERT,
SW_VIDEOOUT_INSERT,
SW_LINEIN_INSERT,
+ SW_HPHL_OVERCURRENT,
+ SW_HPHR_OVERCURRENT,
+ SW_UNSUPPORT_INSERT,
+ SW_MICROPHONE2_INSERT,
};
#endif /* CONFIG_SND_JACK_INPUT_DEV */
@@ -250,7 +254,7 @@ int snd_jack_new(struct snd_card *card, const char *id, int type,
jack->type = type;
- for (i = 0; i < SND_JACK_SWITCH_TYPES; i++)
+ for (i = 0; i < ARRAY_SIZE(jack_switch_types); i++)
if (type & (1 << i))
input_set_capability(jack->input_dev, EV_SW,
jack_switch_types[i]);
diff --git a/sound/core/pcm.c b/sound/core/pcm.c
index 01b9d62..cde6892 100644
--- a/sound/core/pcm.c
+++ b/sound/core/pcm.c
@@ -877,6 +877,14 @@ static void free_chmap(struct snd_pcm_str *pstr)
snd_ctl_remove(pstr->pcm->card, pstr->chmap_kctl);
pstr->chmap_kctl = NULL;
}
+ if (pstr->vol_kctl) {
+ snd_ctl_remove(pstr->pcm->card, pstr->vol_kctl);
+ pstr->vol_kctl = NULL;
+ }
+ if (pstr->usr_kctl) {
+ snd_ctl_remove(pstr->pcm->card, pstr->usr_kctl);
+ pstr->usr_kctl = NULL;
+ }
}
static void snd_pcm_free_stream(struct snd_pcm_str * pstr)
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index da454ee..64f5e488 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -45,6 +45,9 @@
#define trace_applptr(substream, prev, curr)
#endif
+#define STRING_LENGTH_OF_INT 12
+#define MAX_USR_CTRL_CNT 128
+
static int fill_silence_frames(struct snd_pcm_substream *substream,
snd_pcm_uframes_t off, snd_pcm_uframes_t frames);
@@ -2411,6 +2414,24 @@ static void pcm_chmap_ctl_private_free(struct snd_kcontrol *kcontrol)
kfree(info);
}
+static int pcm_volume_ctl_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 1;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 0x2000;
+ return 0;
+}
+
+static void pcm_volume_ctl_private_free(struct snd_kcontrol *kcontrol)
+{
+ struct snd_pcm_volume *info = snd_kcontrol_chip(kcontrol);
+
+ info->pcm->streams[info->stream].vol_kctl = NULL;
+ kfree(info);
+}
+
/**
* snd_pcm_add_chmap_ctls - create channel-mapping control elements
* @pcm: the assigned PCM instance
@@ -2472,3 +2493,166 @@ int snd_pcm_add_chmap_ctls(struct snd_pcm *pcm, int stream,
return 0;
}
EXPORT_SYMBOL_GPL(snd_pcm_add_chmap_ctls);
+
+/**
+ * snd_pcm_add_volume_ctls - create volume control elements
+ * @pcm: the assigned PCM instance
+ * @stream: stream direction
+ * @max_length: the max length of the volume parameter of stream
+ * @private_value: the value passed to each kcontrol's private_value field
+ * @info_ret: store struct snd_pcm_volume instance if non-NULL
+ *
+ * Create volume control elements assigned to the given PCM stream(s).
+ * Returns zero if succeed, or a negative error value.
+ */
+int snd_pcm_add_volume_ctls(struct snd_pcm *pcm, int stream,
+ const struct snd_pcm_volume_elem *volume,
+ int max_length,
+ unsigned long private_value,
+ struct snd_pcm_volume **info_ret)
+{
+ struct snd_pcm_volume *info;
+ struct snd_kcontrol_new knew = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |
+ SNDRV_CTL_ELEM_ACCESS_READWRITE,
+ .info = pcm_volume_ctl_info,
+ };
+ int err;
+ int size;
+
+ info = kzalloc(sizeof(*info), GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+ info->pcm = pcm;
+ info->stream = stream;
+ info->volume = volume;
+ info->max_length = max_length;
+ size = sizeof("Playback ") + sizeof(" Volume") +
+ STRING_LENGTH_OF_INT*sizeof(char) + 1;
+ knew.name = kzalloc(size, GFP_KERNEL);
+ if (!knew.name) {
+ kfree(info);
+ return -ENOMEM;
+ }
+ if (stream == SNDRV_PCM_STREAM_PLAYBACK)
+ snprintf((char *)knew.name, size, "%s %d %s",
+ "Playback", pcm->device, "Volume");
+ else
+ snprintf((char *)knew.name, size, "%s %d %s",
+ "Capture", pcm->device, "Volume");
+ knew.device = pcm->device;
+ knew.count = pcm->streams[stream].substream_count;
+ knew.private_value = private_value;
+ info->kctl = snd_ctl_new1(&knew, info);
+ if (!info->kctl) {
+ kfree(info);
+ kfree(knew.name);
+ return -ENOMEM;
+ }
+ info->kctl->private_free = pcm_volume_ctl_private_free;
+ err = snd_ctl_add(pcm->card, info->kctl);
+ if (err < 0) {
+ kfree(info);
+ kfree(knew.name);
+ return -ENOMEM;
+ }
+ pcm->streams[stream].vol_kctl = info->kctl;
+ if (info_ret)
+ *info_ret = info;
+ kfree(knew.name);
+ return 0;
+}
+EXPORT_SYMBOL(snd_pcm_add_volume_ctls);
+
+static int pcm_usr_ctl_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = MAX_USR_CTRL_CNT;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = INT_MAX;
+ return 0;
+}
+
+static void pcm_usr_ctl_private_free(struct snd_kcontrol *kcontrol)
+{
+ struct snd_pcm_usr *info = snd_kcontrol_chip(kcontrol);
+
+ info->pcm->streams[info->stream].usr_kctl = NULL;
+ kfree(info);
+}
+
+/**
+ * snd_pcm_add_usr_ctls - create user control elements
+ * @pcm: the assigned PCM instance
+ * @stream: stream direction
+ * @max_length: the max length of the user parameter of stream
+ * @private_value: the value passed to each kcontrol's private_value field
+ * @info_ret: store struct snd_pcm_usr instance if non-NULL
+ *
+ * Create usr control elements assigned to the given PCM stream(s).
+ * Returns zero if succeed, or a negative error value.
+ */
+int snd_pcm_add_usr_ctls(struct snd_pcm *pcm, int stream,
+ const struct snd_pcm_usr_elem *usr,
+ int max_length, int max_kctrl_str_len,
+ unsigned long private_value,
+ struct snd_pcm_usr **info_ret)
+{
+ struct snd_pcm_usr *info;
+ struct snd_kcontrol_new knew = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+ .info = pcm_usr_ctl_info,
+ };
+ int err;
+ char *buf;
+
+ info = kzalloc(sizeof(*info), GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+
+ info->pcm = pcm;
+ info->stream = stream;
+ info->usr = usr;
+ info->max_length = max_length;
+ buf = kzalloc(max_kctrl_str_len, GFP_KERNEL);
+ if (!buf) {
+ pr_err("%s: buffer allocation failed\n", __func__);
+ kfree(info);
+ return -ENOMEM;
+ }
+ knew.name = buf;
+ if (stream == SNDRV_PCM_STREAM_PLAYBACK)
+ snprintf(buf, max_kctrl_str_len, "%s %d %s",
+ "Playback", pcm->device, "User kcontrol");
+ else
+ snprintf(buf, max_kctrl_str_len, "%s %d %s",
+ "Capture", pcm->device, "User kcontrol");
+ knew.device = pcm->device;
+ knew.count = pcm->streams[stream].substream_count;
+ knew.private_value = private_value;
+ info->kctl = snd_ctl_new1(&knew, info);
+ if (!info->kctl) {
+ kfree(info);
+ kfree(knew.name);
+ pr_err("%s: snd_ctl_new failed\n", __func__);
+ return -ENOMEM;
+ }
+ info->kctl->private_free = pcm_usr_ctl_private_free;
+ err = snd_ctl_add(pcm->card, info->kctl);
+ if (err < 0) {
+ kfree(info);
+ kfree(knew.name);
+ pr_err("%s: snd_ctl_add failed:%d\n", __func__,
+ err);
+ return -ENOMEM;
+ }
+ pcm->streams[stream].usr_kctl = info->kctl;
+ if (info_ret)
+ *info_ret = info;
+ kfree(knew.name);
+ return 0;
+}
+EXPORT_SYMBOL(snd_pcm_add_usr_ctls);
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index db62dbe..34ba470 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -2160,7 +2160,7 @@ static int snd_pcm_hw_rule_sample_bits(struct snd_pcm_hw_params *params,
static const unsigned int rates[] = {
5512, 8000, 11025, 16000, 22050, 32000, 44100,
- 48000, 64000, 88200, 96000, 176400, 192000
+ 48000, 64000, 88200, 96000, 176400, 192000, 352800, 384000
};
const struct snd_pcm_hw_constraint_list snd_pcm_known_rates = {
@@ -2738,6 +2738,7 @@ static int snd_pcm_sync_ptr(struct snd_pcm_substream *substream,
volatile struct snd_pcm_mmap_status *status;
volatile struct snd_pcm_mmap_control *control;
int err;
+ snd_pcm_uframes_t hw_avail;
memset(&sync_ptr, 0, sizeof(sync_ptr));
if (get_user(sync_ptr.flags, (unsigned __user *)&(_sync_ptr->flags)))
@@ -2766,6 +2767,16 @@ static int snd_pcm_sync_ptr(struct snd_pcm_substream *substream,
control->avail_min = sync_ptr.c.control.avail_min;
else
sync_ptr.c.control.avail_min = control->avail_min;
+
+ if (runtime->render_flag & SNDRV_NON_DMA_MODE) {
+ hw_avail = snd_pcm_playback_hw_avail(runtime);
+ if ((hw_avail >= runtime->start_threshold)
+ && (runtime->render_flag &
+ SNDRV_RENDER_STOPPED)) {
+ if (substream->ops->restart)
+ substream->ops->restart(substream);
+ }
+ }
sync_ptr.s.status.state = status->state;
sync_ptr.s.status.hw_ptr = status->hw_ptr;
sync_ptr.s.status.tstamp = status->tstamp;
diff --git a/sound/soc/intel/atom/sst-mfld-platform-compress.c b/sound/soc/intel/atom/sst-mfld-platform-compress.c
index 6a44b19..4bcd1e3 100644
--- a/sound/soc/intel/atom/sst-mfld-platform-compress.c
+++ b/sound/soc/intel/atom/sst-mfld-platform-compress.c
@@ -214,8 +214,8 @@ static int sst_platform_compr_pointer(struct snd_compr_stream *cstream,
stream = cstream->runtime->private_data;
stream->compr_ops->tstamp(sst->dev, stream->id, tstamp);
- tstamp->byte_offset = tstamp->copied_total %
- (u32)cstream->runtime->buffer_size;
+ div_u64_rem(tstamp->copied_total, (u32)cstream->runtime->buffer_size,
+ &tstamp->byte_offset);
pr_debug("calc bytes offset/copied bytes as %d\n", tstamp->byte_offset);
return 0;
}
diff --git a/sound/soc/intel/atom/sst/sst_drv_interface.c b/sound/soc/intel/atom/sst/sst_drv_interface.c
index 5455d6e0..dc1160f 100644
--- a/sound/soc/intel/atom/sst/sst_drv_interface.c
+++ b/sound/soc/intel/atom/sst/sst_drv_interface.c
@@ -377,7 +377,7 @@ static int sst_cdev_tstamp(struct device *dev, unsigned int str_id,
tstamp->sampling_rate = fw_tstamp.sampling_frequency;
dev_dbg(dev, "PCM = %u\n", tstamp->pcm_io_frames);
- dev_dbg(dev, "Ptr Query on strid = %d copied_total %d, decodec %d\n",
+ dev_dbg(dev, "Ptr Query on strid = %d copied_total %llu, decodec %d\n",
str_id, tstamp->copied_total, tstamp->pcm_frames);
dev_dbg(dev, "rendered %d\n", tstamp->pcm_io_frames);
diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c
index 409d082..9b1239b 100644
--- a/sound/soc/soc-compress.c
+++ b/sound/soc/soc-compress.c
@@ -774,6 +774,28 @@ static int soc_compr_copy(struct snd_compr_stream *cstream,
return ret;
}
+static int sst_compr_set_next_track_param(struct snd_compr_stream *cstream,
+ union snd_codec_options *codec_options)
+{
+ struct snd_soc_pcm_runtime *rtd = cstream->private_data;
+ struct snd_soc_component *component;
+ struct snd_soc_rtdcom_list *rtdcom;
+ int ret = 0;
+
+ for_each_rtdcom(rtd, rtdcom) {
+ component = rtdcom->component;
+
+ if (component->driver->compr_ops &&
+ component->driver->compr_ops->set_next_track_param)
+ ret =
+ component->driver->compr_ops->set_next_track_param(
+ cstream, codec_options);
+ }
+
+ return ret;
+}
+
+
static int soc_compr_set_metadata(struct snd_compr_stream *cstream,
struct snd_compr_metadata *metadata)
{
@@ -840,6 +862,7 @@ static struct snd_compr_ops soc_compr_ops = {
.free = soc_compr_free,
.set_params = soc_compr_set_params,
.set_metadata = soc_compr_set_metadata,
+ .set_next_track_param = sst_compr_set_next_track_param,
.get_metadata = soc_compr_get_metadata,
.get_params = soc_compr_get_params,
.trigger = soc_compr_trigger,
@@ -856,6 +879,7 @@ static struct snd_compr_ops soc_compr_dyn_ops = {
.set_params = soc_compr_set_params_fe,
.get_params = soc_compr_get_params,
.set_metadata = soc_compr_set_metadata,
+ .set_next_track_param = sst_compr_set_next_track_param,
.get_metadata = soc_compr_get_metadata,
.trigger = soc_compr_trigger_fe,
.pointer = soc_compr_pointer,
@@ -982,8 +1006,21 @@ int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num)
rtd->compr = compr;
compr->private_data = rtd;
+ for_each_rtdcom(rtd, rtdcom) {
+ component = rtdcom->component;
+
+ if (component->driver->pcm_new) {
+ ret = component->driver->pcm_new(rtd);
+ if (ret < 0) {
+ pr_err("asoc: compress pcm constructor failed\n");
+ goto compr_err;
+ }
+ }
+ }
+
dev_info(rtd->card->dev, "Compress ASoC: %s <-> %s mapping ok\n",
codec_dai->name, cpu_dai->name);
+
return ret;
compr_err:
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 8531b49..4e3c63a 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -718,7 +718,17 @@ EXPORT_SYMBOL_GPL(snd_soc_resume);
static const struct snd_soc_dai_ops null_dai_ops = {
};
-static struct snd_soc_component *soc_find_component(
+/**
+ * soc_find_component: find a component from component_list in ASoC core
+ *
+ * @of_node: of_node of the component to query.
+ * @name: name of the component to query.
+ *
+ * function to find out if a component is already registered with ASoC core.
+ *
+ * Returns component handle for success, else NULL error.
+ */
+struct snd_soc_component *soc_find_component(
const struct device_node *of_node, const char *name)
{
struct snd_soc_component *component;
@@ -736,6 +746,29 @@ static struct snd_soc_component *soc_find_component(
return NULL;
}
+EXPORT_SYMBOL(soc_find_component);
+
+/**
+ * soc_find_component_locked: soc_find_component with client lock acquired
+ *
+ * @of_node: of_node of the component to query.
+ * @name: name of the component to query.
+ *
+ * function to find out if a component is already registered with ASoC core.
+ *
+ * Returns component handle for success, else NULL error.
+ */
+struct snd_soc_component *soc_find_component_locked(
+ const struct device_node *of_node, const char *name)
+{
+ struct snd_soc_component *component = NULL;
+
+ mutex_lock(&client_mutex);
+ component = soc_find_component(of_node, name);
+ mutex_unlock(&client_mutex);
+ return component;
+}
+EXPORT_SYMBOL(soc_find_component_locked);
/**
* snd_soc_find_dai - Find a registered DAI
@@ -2752,6 +2785,7 @@ int snd_soc_register_card(struct snd_soc_card *card)
card->instantiated = 0;
mutex_init(&card->mutex);
mutex_init(&card->dapm_mutex);
+ mutex_init(&card->dapm_power_mutex);
ret = snd_soc_instantiate_card(card);
if (ret != 0)
@@ -3290,6 +3324,17 @@ struct snd_soc_component *snd_soc_lookup_component(struct device *dev,
}
EXPORT_SYMBOL_GPL(snd_soc_lookup_component);
+/**
+ * snd_soc_card_change_online_state - Mark if soc card is online/offline
+ *
+ * @soc_card : soc_card to mark
+ */
+void snd_soc_card_change_online_state(struct snd_soc_card *soc_card, int online)
+{
+ snd_card_change_online_state(soc_card->snd_card, online);
+}
+EXPORT_SYMBOL_GPL(snd_soc_card_change_online_state);
+
/* Retrieve a card's name from device tree */
int snd_soc_of_parse_card_name(struct snd_soc_card *card,
const char *propname)
@@ -3694,6 +3739,39 @@ int snd_soc_get_dai_id(struct device_node *ep)
}
EXPORT_SYMBOL_GPL(snd_soc_get_dai_id);
+/**
+ * snd_soc_info_multi_ext - external single mixer info callback
+ * @kcontrol: mixer control
+ * @uinfo: control element information
+ *
+ * Callback to provide information about a single external mixer control.
+ * that accepts multiple input.
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_info_multi_ext(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ struct soc_multi_mixer_control *mc =
+ (struct soc_multi_mixer_control *)kcontrol->private_value;
+ int platform_max;
+
+ if (!mc->platform_max)
+ mc->platform_max = mc->max;
+ platform_max = mc->platform_max;
+
+ if (platform_max == 1 && !strnstr(kcontrol->id.name, " Volume", 30))
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+ else
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+
+ uinfo->count = mc->count;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = platform_max;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_info_multi_ext);
+
int snd_soc_get_dai_name(struct of_phandle_args *args,
const char **dai_name)
{
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 4e99d99..064149d 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -1611,7 +1611,7 @@ static void dapm_seq_run(struct snd_soc_card *card,
/* Do we need to apply any queued changes? */
if (sort[w->id] != cur_sort || w->reg != cur_reg ||
w->dapm != cur_dapm || w->subseq != cur_subseq) {
- if (!list_empty(&pending))
+ if (cur_dapm && !list_empty(&pending))
dapm_seq_run_coalesced(card, &pending);
if (cur_dapm && cur_dapm->seq_notifier) {
@@ -1674,7 +1674,7 @@ static void dapm_seq_run(struct snd_soc_card *card,
"ASoC: Failed to apply widget power: %d\n", ret);
}
- if (!list_empty(&pending))
+ if (cur_dapm && !list_empty(&pending))
dapm_seq_run_coalesced(card, &pending);
if (cur_dapm && cur_dapm->seq_notifier) {
@@ -1919,6 +1919,7 @@ static int dapm_power_widgets(struct snd_soc_card *card, int event)
lockdep_assert_held(&card->dapm_mutex);
trace_snd_soc_dapm_start(card);
+ mutex_lock(&card->dapm_power_mutex);
list_for_each_entry(d, &card->dapm_list, list) {
if (dapm_idle_bias_off(d))
@@ -2038,6 +2039,7 @@ static int dapm_power_widgets(struct snd_soc_card *card, int event)
pop_dbg(card->dev, card->pop_time,
"DAPM sequencing finished, waiting %dms\n", card->pop_time);
pop_wait(card->pop_time);
+ mutex_unlock(&card->dapm_power_mutex);
trace_snd_soc_dapm_done(card);
@@ -4248,7 +4250,8 @@ void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card)
* dynamic FE links have no fixed DAI mapping.
* CODEC<->CODEC links have no direct connection.
*/
- if (rtd->dai_link->dynamic || rtd->dai_link->params)
+ if (rtd->dai_link->dynamic || rtd->dai_link->params ||
+ rtd->dai_link->dynamic_be)
continue;
dapm_connect_dai_link_widgets(card, rtd);
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index af14304..cde4954 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -19,6 +19,7 @@
#include <linux/workqueue.h>
#include <linux/export.h>
#include <linux/debugfs.h>
+#include <linux/dma-mapping.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
@@ -29,6 +30,30 @@
#define DPCM_MAX_BE_USERS 8
/*
+ * ASoC no host IO hardware.
+ * TODO: fine tune these values for all host less transfers.
+ */
+static const struct snd_pcm_hardware no_host_hardware = {
+ .info = SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_PAUSE |
+ SNDRV_PCM_INFO_RESUME,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_S32_LE,
+ .period_bytes_min = PAGE_SIZE >> 2,
+ .period_bytes_max = PAGE_SIZE >> 1,
+ .periods_min = 2,
+ .periods_max = 4,
+ /*
+ * Increase the max buffer bytes as PAGE_SIZE bytes is
+ * not enough to encompass all the scenarios sent by
+ * userspapce.
+ */
+ .buffer_bytes_max = PAGE_SIZE * 4,
+};
+
+/*
* snd_soc_dai_stream_valid() - check if a DAI supports the given stream
*
* Returns true if the DAI supports the indicated stream type.
@@ -154,6 +179,8 @@ int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream,
const struct snd_pcm_hardware *hw)
{
struct snd_pcm_runtime *runtime = substream->runtime;
+ if (!runtime)
+ return 0;
runtime->hw.info = hw->info;
runtime->hw.formats = hw->formats;
runtime->hw.period_bytes_min = hw->period_bytes_min;
@@ -493,6 +520,9 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
+ if (rtd->dai_link->no_host_mode == SND_SOC_DAI_LINK_NO_HOST)
+ snd_soc_set_runtime_hwparams(substream, &no_host_hardware);
+
/* startup the audio subsystem */
if (cpu_dai->driver->ops->startup) {
ret = cpu_dai->driver->ops->startup(substream, cpu_dai);
@@ -923,6 +953,17 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
int i, ret = 0;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
+
+ /* perform any hw_params fixups */
+ if ((rtd->dai_link->no_host_mode == SND_SOC_DAI_LINK_NO_HOST) &&
+ rtd->dai_link->be_hw_params_fixup) {
+ ret = rtd->dai_link->be_hw_params_fixup(rtd,
+ params);
+ if (ret < 0)
+ dev_err(rtd->card->dev, "ASoC: fixup failed for %s\n",
+ rtd->dai_link->name);
+ }
+
if (rtd->dai_link->ops->hw_params) {
ret = rtd->dai_link->ops->hw_params(substream, params);
if (ret < 0) {
@@ -1007,6 +1048,24 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
ret = soc_pcm_params_symmetry(substream, params);
if (ret)
goto component_err;
+
+ /* malloc a page for hostless IO.
+ * FIXME: rework with alsa-lib changes so that this malloc is
+ * not required.
+ */
+ if (rtd->dai_link->no_host_mode == SND_SOC_DAI_LINK_NO_HOST) {
+ substream->dma_buffer.dev.type = SNDRV_DMA_TYPE_DEV;
+ substream->dma_buffer.dev.dev = rtd->dev;
+ substream->dma_buffer.dev.dev->coherent_dma_mask =
+ DMA_BIT_MASK(sizeof(dma_addr_t) * 8);
+ substream->dma_buffer.private_data = NULL;
+
+ arch_setup_dma_ops(substream->dma_buffer.dev.dev,
+ 0, 0, NULL, 0);
+ ret = snd_pcm_lib_malloc_pages(substream, PAGE_SIZE);
+ if (ret < 0)
+ goto component_err;
+ }
out:
mutex_unlock(&rtd->pcm_mutex);
return ret;
@@ -1089,6 +1148,8 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream)
if (cpu_dai->driver->ops->hw_free)
cpu_dai->driver->ops->hw_free(substream, cpu_dai);
+ if (rtd->dai_link->no_host_mode == SND_SOC_DAI_LINK_NO_HOST)
+ snd_pcm_lib_free_pages(substream);
mutex_unlock(&rtd->pcm_mutex);
return 0;
}
@@ -3082,6 +3143,7 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)
struct snd_soc_component *component;
struct snd_soc_rtdcom_list *rtdcom;
struct snd_pcm *pcm;
+ struct snd_pcm_str *stream;
char new_name[64];
int ret = 0, playback = 0, capture = 0;
int i;
@@ -3154,6 +3216,22 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)
goto out;
}
+ /* setup any hostless PCMs - i.e. no host IO is performed */
+ if (rtd->dai_link->no_host_mode) {
+ if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
+ stream = &pcm->streams[SNDRV_PCM_STREAM_PLAYBACK];
+ stream->substream->hw_no_buffer = 1;
+ snd_soc_set_runtime_hwparams(stream->substream,
+ &no_host_hardware);
+ }
+ if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
+ stream = &pcm->streams[SNDRV_PCM_STREAM_CAPTURE];
+ stream->substream->hw_no_buffer = 1;
+ snd_soc_set_runtime_hwparams(stream->substream,
+ &no_host_hardware);
+ }
+ }
+
/* ASoC PCM operations */
if (rtd->dai_link->dynamic) {
rtd->ops.open = dpcm_fe_dai_open;
diff --git a/sound/usb/card.c b/sound/usb/card.c
index ce8925e..861c041 100644
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -119,6 +119,82 @@ static DEFINE_MUTEX(register_mutex);
static struct snd_usb_audio *usb_chip[SNDRV_CARDS];
static struct usb_driver usb_audio_driver;
+/**
+ * find_snd_usb_substream - helper API to find usb substream context
+ * information using card number, pcm device number and direction.
+ * @card_num: card number
+ * @pcm_idx: pcm device number
+ * @direction: SNDRV_PCM_STREAM_PLAYBACK or SNDRV_PCM_STREAM_CAPTURE
+ * @uchip: substream context.
+ * disconnect_cb: callback to use for cleanup on disconnect.
+ */
+struct snd_usb_substream *find_snd_usb_substream(unsigned int card_num,
+ unsigned int pcm_idx, unsigned int direction, struct snd_usb_audio
+ **uchip, void (*disconnect_cb)(struct snd_usb_audio *chip))
+{
+ int idx;
+ struct snd_usb_stream *as;
+ struct snd_usb_substream *subs = NULL;
+ struct snd_usb_audio *chip = NULL;
+
+ mutex_lock(®ister_mutex);
+ /*
+ * legacy audio snd card number assignment is dynamic. Hence
+ * search using chip->card->number
+ */
+ for (idx = 0; idx < SNDRV_CARDS; idx++) {
+ if (!usb_chip[idx] || !usb_chip[idx]->card)
+ continue;
+ if (usb_chip[idx]->card->number == card_num) {
+ chip = usb_chip[idx];
+ break;
+ }
+ }
+
+ if (!chip || atomic_read(&chip->shutdown)) {
+ pr_debug("%s: instance of usb card # %d does not exist\n",
+ __func__, card_num);
+ goto err;
+ }
+
+ if (pcm_idx >= chip->pcm_devs) {
+ usb_audio_err(chip, "%s: invalid pcm dev number %u > %d\n",
+ __func__, pcm_idx, chip->pcm_devs);
+ goto err;
+ }
+
+ if (direction > SNDRV_PCM_STREAM_CAPTURE) {
+ usb_audio_err(chip, "%s: invalid direction %u\n", __func__,
+ direction);
+ goto err;
+ }
+
+ list_for_each_entry(as, &chip->pcm_list, list) {
+ if (as->pcm_index == pcm_idx) {
+ subs = &as->substream[direction];
+ if (subs->interface < 0 && !subs->data_endpoint &&
+ !subs->sync_endpoint) {
+ usb_audio_err(chip, "%s: stream disconnected, bail out\n",
+ __func__);
+ subs = NULL;
+ goto err;
+ }
+ goto done;
+ }
+ }
+
+done:
+ chip->card_num = card_num;
+ chip->disconnect_cb = disconnect_cb;
+err:
+ *uchip = chip;
+ if (!subs)
+ pr_err("%s: substream instance not found\n", __func__);
+ mutex_unlock(®ister_mutex);
+ return subs;
+}
+EXPORT_SYMBOL_GPL(find_snd_usb_substream);
+
/*
* disconnect streams
* called from usb_audio_disconnect()
@@ -354,6 +430,7 @@ static void snd_usb_audio_free(struct snd_card *card)
list_for_each_entry_safe(ep, n, &chip->ep_list, list)
snd_usb_endpoint_free(ep);
+ mutex_destroy(&chip->dev_lock);
mutex_destroy(&chip->mutex);
if (!atomic_read(&chip->shutdown))
dev_set_drvdata(&chip->dev->dev, NULL);
@@ -481,6 +558,7 @@ static int snd_usb_audio_create(struct usb_interface *intf,
chip = card->private_data;
mutex_init(&chip->mutex);
+ mutex_init(&chip->dev_lock);
init_waitqueue_head(&chip->shutdown_wait);
chip->index = idx;
chip->dev = dev;
diff --git a/sound/usb/card.h b/sound/usb/card.h
index f30fec6..c773ad3 100644
--- a/sound/usb/card.h
+++ b/sound/usb/card.h
@@ -2,6 +2,8 @@
#ifndef __USBAUDIO_CARD_H
#define __USBAUDIO_CARD_H
+#include <linux/android_kabi.h>
+
#define MAX_NR_RATES 1024
#define MAX_PACKS 6 /* per URB */
#define MAX_PACKS_HS (MAX_PACKS * 8) /* in high speed mode */
@@ -106,6 +108,11 @@ struct snd_usb_endpoint {
spinlock_t lock;
struct list_head list;
+
+ ANDROID_KABI_RESERVE(1);
+ ANDROID_KABI_RESERVE(2);
+ ANDROID_KABI_RESERVE(3);
+ ANDROID_KABI_RESERVE(4);
};
struct snd_usb_substream {
@@ -129,7 +136,6 @@ struct snd_usb_substream {
unsigned int tx_length_quirk:1; /* add length specifier to transfers */
unsigned int fmt_type; /* USB audio format type (1-3) */
unsigned int pkt_offset_adj; /* Bytes to drop from beginning of packets (for non-compliant devices) */
- unsigned int stream_offset_adj; /* Bytes to drop from beginning of stream (for non-compliant devices) */
unsigned int running: 1; /* running status */
@@ -173,4 +179,8 @@ struct snd_usb_stream {
struct list_head list;
};
+struct snd_usb_substream *find_snd_usb_substream(unsigned int card_num,
+ unsigned int pcm_idx, unsigned int direction, struct snd_usb_audio
+ **uchip, void (*disconnect_cb)(struct snd_usb_audio *chip));
+
#endif /* __USBAUDIO_CARD_H */
diff --git a/sound/usb/helper.c b/sound/usb/helper.c
index 7712e2b..e6e7c9d 100644
--- a/sound/usb/helper.c
+++ b/sound/usb/helper.c
@@ -75,6 +75,7 @@ void *snd_usb_find_csint_desc(void *buffer, int buflen, void *after, u8 dsubtype
}
return NULL;
}
+EXPORT_SYMBOL_GPL(snd_usb_find_csint_desc);
/*
* Wrapper for usb_control_msg().
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index 4c9ab61..0f14d77 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -149,6 +149,69 @@ static struct audioformat *find_format(struct snd_usb_substream *subs)
return found;
}
+/*
+ * find a matching audio format as well as non-zero service interval
+ */
+static struct audioformat *find_format_and_si(struct snd_usb_substream *subs,
+ unsigned int datainterval)
+{
+ unsigned int i;
+ struct audioformat *fp;
+ struct audioformat *found = NULL;
+ int cur_attr = 0, attr;
+
+ list_for_each_entry(fp, &subs->fmt_list, list) {
+ if (datainterval != fp->datainterval)
+ continue;
+ if (!(fp->formats & pcm_format_to_bits(subs->pcm_format)))
+ continue;
+ if (fp->channels != subs->channels)
+ continue;
+ if (subs->cur_rate < fp->rate_min ||
+ subs->cur_rate > fp->rate_max)
+ continue;
+ if (!(fp->rates & SNDRV_PCM_RATE_CONTINUOUS)) {
+ for (i = 0; i < fp->nr_rates; i++)
+ if (fp->rate_table[i] == subs->cur_rate)
+ break;
+ if (i >= fp->nr_rates)
+ continue;
+ }
+ attr = fp->ep_attr & USB_ENDPOINT_SYNCTYPE;
+ if (!found) {
+ found = fp;
+ cur_attr = attr;
+ continue;
+ }
+ /* avoid async out and adaptive in if the other method
+ * supports the same format.
+ * this is a workaround for the case like
+ * M-audio audiophile USB.
+ */
+ if (attr != cur_attr) {
+ if ((attr == USB_ENDPOINT_SYNC_ASYNC &&
+ subs->direction == SNDRV_PCM_STREAM_PLAYBACK) ||
+ (attr == USB_ENDPOINT_SYNC_ADAPTIVE &&
+ subs->direction == SNDRV_PCM_STREAM_CAPTURE))
+ continue;
+ if ((cur_attr == USB_ENDPOINT_SYNC_ASYNC &&
+ subs->direction == SNDRV_PCM_STREAM_PLAYBACK) ||
+ (cur_attr == USB_ENDPOINT_SYNC_ADAPTIVE &&
+ subs->direction == SNDRV_PCM_STREAM_CAPTURE)) {
+ found = fp;
+ cur_attr = attr;
+ continue;
+ }
+ }
+ /* find the format with the largest max. packet size */
+ if (fp->maxpacksize > found->maxpacksize) {
+ found = fp;
+ cur_attr = attr;
+ }
+ }
+ return found;
+}
+
static int init_pitch_v1(struct snd_usb_audio *chip, int iface,
struct usb_host_interface *alts,
struct audioformat *fmt)
@@ -586,6 +649,90 @@ static int set_format(struct snd_usb_substream *subs, struct audioformat *fmt)
return 0;
}
+/**
+ * snd_usb_enable_audio_stream - Enable/disable the specified usb substream.
+ * @subs: pointer to the usb substream.
+ * @datainterval: data packet interval.
+ * @enable: if true, enable the usb substream. Else disable.
+ */
+int snd_usb_enable_audio_stream(struct snd_usb_substream *subs,
+ int datainterval, bool enable)
+{
+ struct audioformat *fmt;
+ struct usb_host_interface *alts;
+ struct usb_interface *iface;
+ int ret;
+
+ if (!subs || !subs->stream)
+ return -EINVAL;
+
+ if (!enable) {
+ if (subs->interface >= 0) {
+ usb_set_interface(subs->dev, subs->interface, 0);
+ subs->altset_idx = 0;
+ subs->interface = -1;
+ subs->cur_audiofmt = NULL;
+ }
+
+ snd_usb_autosuspend(subs->stream->chip);
+ return 0;
+ }
+
+ snd_usb_autoresume(subs->stream->chip);
+ if (datainterval != -EINVAL)
+ fmt = find_format_and_si(subs, datainterval);
+ else
+ fmt = find_format(subs);
+ if (!fmt) {
+ dev_dbg(&subs->dev->dev,
+ "cannot set format: format = %#x, rate = %d, channels = %d\n",
+ subs->pcm_format, subs->cur_rate, subs->channels);
+ return -EINVAL;
+ }
+
+ subs->altset_idx = 0;
+ subs->interface = -1;
+
+ if (!subs->stream->chip)
+ return -EINVAL;
+
+ if (atomic_read(&subs->stream->chip->shutdown)) {
+ ret = -ENODEV;
+ } else {
+ ret = set_format(subs, fmt);
+ if (ret < 0)
+ return ret;
+
+ if (!subs->cur_audiofmt)
+ return -EINVAL;
+
+ iface = usb_ifnum_to_if(subs->dev, subs->cur_audiofmt->iface);
+ if (!iface) {
+ dev_err(&subs->dev->dev, "Could not get iface %d\n",
+ subs->cur_audiofmt->iface);
+ return -ENODEV;
+ }
+
+ alts = &iface->altsetting[subs->cur_audiofmt->altset_idx];
+ ret = snd_usb_init_sample_rate(subs->stream->chip,
+ subs->cur_audiofmt->iface,
+ alts,
+ subs->cur_audiofmt,
+ subs->cur_rate);
+ if (ret < 0) {
+ dev_err(&subs->dev->dev, "failed to set rate %d\n",
+ subs->cur_rate);
+ return ret;
+ }
+ }
+
+ subs->interface = fmt->iface;
+ subs->altset_idx = fmt->altset_idx;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(snd_usb_enable_audio_stream);
+
/*
* Return the score of matching two audioformats.
* Veto the audioformat if:
@@ -1393,12 +1540,6 @@ static void retire_capture_urb(struct snd_usb_substream *subs,
// continue;
}
bytes = urb->iso_frame_desc[i].actual_length;
- if (subs->stream_offset_adj > 0) {
- unsigned int adj = min(subs->stream_offset_adj, bytes);
- cp += adj;
- bytes -= adj;
- subs->stream_offset_adj -= adj;
- }
frames = bytes / stride;
if (!subs->txfr_quirk)
bytes = frames * stride;
diff --git a/sound/usb/pcm.h b/sound/usb/pcm.h
index 9833627..37fbcb3 100644
--- a/sound/usb/pcm.h
+++ b/sound/usb/pcm.h
@@ -13,6 +13,6 @@ int snd_usb_init_pitch(struct snd_usb_audio *chip, int iface,
struct usb_host_interface *alts,
struct audioformat *fmt);
void snd_usb_preallocate_buffer(struct snd_usb_substream *subs);
-
-
+int snd_usb_enable_audio_stream(struct snd_usb_substream *subs,
+ int datainterval, bool enable);
#endif /* __USBAUDIO_PCM_H */
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index f4bdcff..77a965f 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1174,9 +1174,6 @@ void snd_usb_set_format_quirk(struct snd_usb_substream *subs,
case USB_ID(0x041e, 0x3f19): /* E-Mu 0204 USB */
set_format_emu_quirk(subs, fmt);
break;
- case USB_ID(0x534d, 0x2109): /* MacroSilicon MS2109 */
- subs->stream_offset_adj = 2;
- break;
}
}
diff --git a/sound/usb/stream.c b/sound/usb/stream.c
index 9a950aa..3c55274 100644
--- a/sound/usb/stream.c
+++ b/sound/usb/stream.c
@@ -72,9 +72,14 @@ static void snd_usb_audio_stream_free(struct snd_usb_stream *stream)
static void snd_usb_audio_pcm_free(struct snd_pcm *pcm)
{
struct snd_usb_stream *stream = pcm->private_data;
+ struct snd_usb_audio *chip;
+
if (stream) {
+ mutex_lock(&stream->chip->dev_lock);
+ chip = stream->chip;
stream->pcm = NULL;
snd_usb_audio_stream_free(stream);
+ mutex_unlock(&chip->dev_lock);
}
}
@@ -99,7 +104,6 @@ static void snd_usb_init_substream(struct snd_usb_stream *as,
subs->tx_length_quirk = as->chip->tx_length_quirk;
subs->speed = snd_usb_get_speed(subs->dev);
subs->pkt_offset_adj = 0;
- subs->stream_offset_adj = 0;
snd_usb_set_pcm_ops(as->pcm, stream);
diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h
index 0c7ea78..dd23fef 100644
--- a/sound/usb/usbaudio.h
+++ b/sound/usb/usbaudio.h
@@ -66,6 +66,9 @@ struct snd_usb_audio {
*/
struct usb_host_interface *ctrl_intf; /* the audio control interface */
+ struct mutex dev_lock; /* to protect any race with disconnect */
+ int card_num; /* cache pcm card number to use upon disconnect */
+ void (*disconnect_cb)(struct snd_usb_audio *chip); /* callback to cleanup on disconnect */
};
#define USB_AUDIO_IFACE_UNUSED ((void *)-1L)
diff --git a/tools/accounting/getdelays.c b/tools/accounting/getdelays.c
index 6bf6a20..5ef1c15 100644
--- a/tools/accounting/getdelays.c
+++ b/tools/accounting/getdelays.c
@@ -203,6 +203,8 @@ static void print_delayacct(struct taskstats *t)
"SWAP %15s%15s%15s\n"
" %15llu%15llu%15llums\n"
"RECLAIM %12s%15s%15s\n"
+ " %15llu%15llu%15llums\n"
+ "THRASHING%12s%15s%15s\n"
" %15llu%15llu%15llums\n",
"count", "real total", "virtual total",
"delay total", "delay average",
@@ -222,7 +224,11 @@ static void print_delayacct(struct taskstats *t)
"count", "delay total", "delay average",
(unsigned long long)t->freepages_count,
(unsigned long long)t->freepages_delay_total,
- average_ms(t->freepages_delay_total, t->freepages_count));
+ average_ms(t->freepages_delay_total, t->freepages_count),
+ "count", "delay total", "delay average",
+ (unsigned long long)t->thrashing_count,
+ (unsigned long long)t->thrashing_delay_total,
+ average_ms(t->thrashing_delay_total, t->thrashing_count));
}
static void task_context_switch_counts(struct taskstats *t)
diff --git a/tools/include/linux/coresight-pmu.h b/tools/include/linux/coresight-pmu.h
index a1a959b..b0e35ee 100644
--- a/tools/include/linux/coresight-pmu.h
+++ b/tools/include/linux/coresight-pmu.h
@@ -12,11 +12,13 @@
/* ETMv3.5/PTM's ETMCR config bit */
#define ETM_OPT_CYCACC 12
+#define ETM_OPT_CTXTID 14
#define ETM_OPT_TS 28
#define ETM_OPT_RETSTK 29
/* ETMv4 CONFIGR programming bits for the ETM OPTs */
#define ETM4_CFG_BIT_CYCACC 4
+#define ETM4_CFG_BIT_CTXTID 6
#define ETM4_CFG_BIT_TS 11
#define ETM4_CFG_BIT_RETSTK 12
diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index 9e060c6..767ae4e 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -483,6 +483,8 @@ union bpf_attr {
* u64 bpf_ktime_get_ns(void)
* Description
* Return the time elapsed since system boot, in nanoseconds.
+ * Does not include time the system was suspended.
+ * See: clock_gettime(CLOCK_MONOTONIC)
* Return
* Current *ktime*.
*
@@ -2155,6 +2157,14 @@ union bpf_attr {
* request in the skb.
* Return
* 0 on success, or a negative error in case of failure.
+ *
+ * u64 bpf_ktime_get_boot_ns(void)
+ * Description
+ * Return the time elapsed since system boot, in nanoseconds.
+ * Does include the time the system was suspended.
+ * See: clock_gettime(CLOCK_BOOTTIME)
+ * Return
+ * Current *ktime*.
*/
#define __BPF_FUNC_MAPPER(FN) \
FN(unspec), \
@@ -2240,7 +2250,49 @@ union bpf_attr {
FN(get_current_cgroup_id), \
FN(get_local_storage), \
FN(sk_select_reuseport), \
- FN(skb_ancestor_cgroup_id),
+ FN(skb_ancestor_cgroup_id), \
+ FN(sk_lookup_tcp), \
+ FN(sk_lookup_udp), \
+ FN(sk_release), \
+ FN(map_push_elem), \
+ FN(map_pop_elem), \
+ FN(map_peek_elem), \
+ FN(msg_push_data), \
+ FN(msg_pop_data), \
+ FN(rc_pointer_rel), \
+ FN(spin_lock), \
+ FN(spin_unlock), \
+ FN(sk_fullsock), \
+ FN(tcp_sock), \
+ FN(skb_ecn_set_ce), \
+ FN(get_listener_sock), \
+ FN(skc_lookup_tcp), \
+ FN(tcp_check_syncookie), \
+ FN(sysctl_get_name), \
+ FN(sysctl_get_current_value), \
+ FN(sysctl_get_new_value), \
+ FN(sysctl_set_new_value), \
+ FN(strtol), \
+ FN(strtoul), \
+ FN(sk_storage_get), \
+ FN(sk_storage_delete), \
+ FN(send_signal), \
+ FN(tcp_gen_syncookie), \
+ FN(skb_output), \
+ FN(probe_read_user), \
+ FN(probe_read_kernel), \
+ FN(probe_read_user_str), \
+ FN(probe_read_kernel_str), \
+ FN(tcp_send_ack), \
+ FN(send_signal_thread), \
+ FN(jiffies64), \
+ FN(read_branch_records), \
+ FN(get_ns_current_pid_tgid), \
+ FN(xdp_output), \
+ FN(get_netns_cookie), \
+ FN(get_current_ancestor_cgroup_id), \
+ FN(sk_assign), \
+ FN(ktime_get_boot_ns),
/* integer value in 'imm' field of BPF_CALL instruction selects which helper
* function eBPF program intends to call
diff --git a/tools/include/uapi/linux/sched.h b/tools/include/uapi/linux/sched.h
index 22627f8..e5489d7 100644
--- a/tools/include/uapi/linux/sched.h
+++ b/tools/include/uapi/linux/sched.h
@@ -2,6 +2,8 @@
#ifndef _UAPI_LINUX_SCHED_H
#define _UAPI_LINUX_SCHED_H
+#include <linux/types.h>
+
/*
* cloning flags:
*/
@@ -31,6 +33,20 @@
#define CLONE_IO 0x80000000 /* Clone io context */
/*
+ * Arguments for the clone3 syscall
+ */
+struct clone_args {
+ __aligned_u64 flags;
+ __aligned_u64 pidfd;
+ __aligned_u64 child_tid;
+ __aligned_u64 parent_tid;
+ __aligned_u64 exit_signal;
+ __aligned_u64 stack;
+ __aligned_u64 stack_size;
+ __aligned_u64 tls;
+};
+
+/*
* Scheduling policies
*/
#define SCHED_NORMAL 0
@@ -50,9 +66,21 @@
#define SCHED_FLAG_RESET_ON_FORK 0x01
#define SCHED_FLAG_RECLAIM 0x02
#define SCHED_FLAG_DL_OVERRUN 0x04
+#define SCHED_FLAG_KEEP_POLICY 0x08
+#define SCHED_FLAG_KEEP_PARAMS 0x10
+#define SCHED_FLAG_UTIL_CLAMP_MIN 0x20
+#define SCHED_FLAG_UTIL_CLAMP_MAX 0x40
+
+#define SCHED_FLAG_KEEP_ALL (SCHED_FLAG_KEEP_POLICY | \
+ SCHED_FLAG_KEEP_PARAMS)
+
+#define SCHED_FLAG_UTIL_CLAMP (SCHED_FLAG_UTIL_CLAMP_MIN | \
+ SCHED_FLAG_UTIL_CLAMP_MAX)
#define SCHED_FLAG_ALL (SCHED_FLAG_RESET_ON_FORK | \
SCHED_FLAG_RECLAIM | \
- SCHED_FLAG_DL_OVERRUN)
+ SCHED_FLAG_DL_OVERRUN | \
+ SCHED_FLAG_KEEP_ALL | \
+ SCHED_FLAG_UTIL_CLAMP)
#endif /* _UAPI_LINUX_SCHED_H */
diff --git a/tools/testing/selftests/arm64/.gitignore b/tools/testing/selftests/arm64/.gitignore
new file mode 100644
index 0000000..e8fae8d
--- /dev/null
+++ b/tools/testing/selftests/arm64/.gitignore
@@ -0,0 +1 @@
+tags_test
diff --git a/tools/testing/selftests/arm64/Makefile b/tools/testing/selftests/arm64/Makefile
new file mode 100644
index 0000000..f9f79fb
--- /dev/null
+++ b/tools/testing/selftests/arm64/Makefile
@@ -0,0 +1,12 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# ARCH can be overridden by the user for cross compiling
+ARCH ?= $(shell uname -m 2>/dev/null || echo not)
+
+ifneq (,$(filter $(ARCH),aarch64 arm64))
+CFLAGS += -I../../../../usr/include/
+TEST_GEN_PROGS := tags_test
+TEST_PROGS := run_tags_test.sh
+endif
+
+include ../lib.mk
diff --git a/tools/testing/selftests/arm64/run_tags_test.sh b/tools/testing/selftests/arm64/run_tags_test.sh
new file mode 100755
index 0000000..745f113
--- /dev/null
+++ b/tools/testing/selftests/arm64/run_tags_test.sh
@@ -0,0 +1,12 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+echo "--------------------"
+echo "running tags test"
+echo "--------------------"
+./tags_test
+if [ $? -ne 0 ]; then
+ echo "[FAIL]"
+else
+ echo "[PASS]"
+fi
diff --git a/tools/testing/selftests/arm64/tags_test.c b/tools/testing/selftests/arm64/tags_test.c
new file mode 100644
index 0000000..5701163
--- /dev/null
+++ b/tools/testing/selftests/arm64/tags_test.c
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdint.h>
+#include <sys/prctl.h>
+#include <sys/utsname.h>
+
+#define SHIFT_TAG(tag) ((uint64_t)(tag) << 56)
+#define SET_TAG(ptr, tag) (((uint64_t)(ptr) & ~SHIFT_TAG(0xff)) | \
+ SHIFT_TAG(tag))
+
+int main(void)
+{
+ static int tbi_enabled = 0;
+ unsigned long tag = 0;
+ struct utsname *ptr;
+ int err;
+
+ if (prctl(PR_SET_TAGGED_ADDR_CTRL, PR_TAGGED_ADDR_ENABLE, 0, 0, 0) == 0)
+ tbi_enabled = 1;
+ ptr = (struct utsname *)malloc(sizeof(*ptr));
+ if (tbi_enabled)
+ tag = 0x42;
+ ptr = (struct utsname *)SET_TAG(ptr, tag);
+ err = uname(ptr);
+ free(ptr);
+
+ return err;
+}
diff --git a/tools/testing/selftests/filesystems/incfs/.gitignore b/tools/testing/selftests/filesystems/incfs/.gitignore
new file mode 100644
index 0000000..4cba9c21
--- /dev/null
+++ b/tools/testing/selftests/filesystems/incfs/.gitignore
@@ -0,0 +1 @@
+incfs_test
\ No newline at end of file
diff --git a/tools/testing/selftests/filesystems/incfs/Makefile b/tools/testing/selftests/filesystems/incfs/Makefile
new file mode 100644
index 0000000..5b2e627
--- /dev/null
+++ b/tools/testing/selftests/filesystems/incfs/Makefile
@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: GPL-2.0
+CFLAGS += -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE -Wall
+CFLAGS += -I../.. -I../../../../..
+
+LDLIBS := -llz4 -lcrypto
+EXTRA_SOURCES := utils.c
+TEST_GEN_PROGS := incfs_test
+
+$(TEST_GEN_PROGS): $(EXTRA_SOURCES)
+
+include ../../lib.mk
diff --git a/tools/testing/selftests/filesystems/incfs/OWNERS b/tools/testing/selftests/filesystems/incfs/OWNERS
new file mode 100644
index 0000000..5eb371e
--- /dev/null
+++ b/tools/testing/selftests/filesystems/incfs/OWNERS
@@ -0,0 +1,2 @@
+# include OWNERS from the authoritative android-mainline branch
+include kernel/common:android-mainline:/tools/testing/selftests/filesystems/incfs/OWNERS
diff --git a/tools/testing/selftests/filesystems/incfs/incfs_test.c b/tools/testing/selftests/filesystems/incfs/incfs_test.c
new file mode 100644
index 0000000..6809399e
--- /dev/null
+++ b/tools/testing/selftests/filesystems/incfs/incfs_test.c
@@ -0,0 +1,2765 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2018 Google LLC
+ */
+#include <alloca.h>
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <lz4.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/xattr.h>
+
+#include <linux/random.h>
+#include <linux/unistd.h>
+
+#include <kselftest.h>
+
+#include "utils.h"
+
+#define TEST_FAILURE 1
+#define TEST_SUCCESS 0
+#define INCFS_MAX_MTREE_LEVELS 8
+
+#define INCFS_ROOT_INODE 0
+
+struct hash_block {
+ char data[INCFS_DATA_FILE_BLOCK_SIZE];
+};
+
+struct test_signature {
+ void *data;
+ size_t size;
+
+ char add_data[100];
+ size_t add_data_size;
+};
+
+struct test_file {
+ int index;
+ incfs_uuid_t id;
+ char *name;
+ off_t size;
+ char root_hash[INCFS_MAX_HASH_SIZE];
+ struct hash_block *mtree;
+ int mtree_block_count;
+ struct test_signature sig;
+};
+
+struct test_files_set {
+ struct test_file *files;
+ int files_count;
+};
+
+struct linux_dirent64 {
+ uint64_t d_ino;
+ int64_t d_off;
+ unsigned short d_reclen;
+ unsigned char d_type;
+ char d_name[0];
+} __packed;
+
+struct test_files_set get_test_files_set(void)
+{
+ static struct test_file files[] = {
+ { .index = 0, .name = "file_one_byte", .size = 1 },
+ { .index = 1,
+ .name = "file_one_block",
+ .size = INCFS_DATA_FILE_BLOCK_SIZE },
+ { .index = 2,
+ .name = "file_one_and_a_half_blocks",
+ .size = INCFS_DATA_FILE_BLOCK_SIZE +
+ INCFS_DATA_FILE_BLOCK_SIZE / 2 },
+ { .index = 3,
+ .name = "file_three",
+ .size = 300 * INCFS_DATA_FILE_BLOCK_SIZE + 3 },
+ { .index = 4,
+ .name = "file_four",
+ .size = 400 * INCFS_DATA_FILE_BLOCK_SIZE + 7 },
+ { .index = 5,
+ .name = "file_five",
+ .size = 500 * INCFS_DATA_FILE_BLOCK_SIZE + 7 },
+ { .index = 6,
+ .name = "file_six",
+ .size = 600 * INCFS_DATA_FILE_BLOCK_SIZE + 7 },
+ { .index = 7,
+ .name = "file_seven",
+ .size = 700 * INCFS_DATA_FILE_BLOCK_SIZE + 7 },
+ { .index = 8,
+ .name = "file_eight",
+ .size = 800 * INCFS_DATA_FILE_BLOCK_SIZE + 7 },
+ { .index = 9,
+ .name = "file_nine",
+ .size = 900 * INCFS_DATA_FILE_BLOCK_SIZE + 7 },
+ { .index = 10, .name = "file_big", .size = 500 * 1024 * 1024 }
+ };
+ return (struct test_files_set){ .files = files,
+ .files_count = ARRAY_SIZE(files) };
+}
+
+struct test_files_set get_small_test_files_set(void)
+{
+ static struct test_file files[] = {
+ { .index = 0, .name = "file_one_byte", .size = 1 },
+ { .index = 1,
+ .name = "file_one_block",
+ .size = INCFS_DATA_FILE_BLOCK_SIZE },
+ { .index = 2,
+ .name = "file_one_and_a_half_blocks",
+ .size = INCFS_DATA_FILE_BLOCK_SIZE +
+ INCFS_DATA_FILE_BLOCK_SIZE / 2 },
+ { .index = 3,
+ .name = "file_three",
+ .size = 300 * INCFS_DATA_FILE_BLOCK_SIZE + 3 },
+ { .index = 4,
+ .name = "file_four",
+ .size = 400 * INCFS_DATA_FILE_BLOCK_SIZE + 7 }
+ };
+ return (struct test_files_set){ .files = files,
+ .files_count = ARRAY_SIZE(files) };
+}
+
+static int get_file_block_seed(int file, int block)
+{
+ return 7919 * file + block;
+}
+
+static loff_t min(loff_t a, loff_t b)
+{
+ return a < b ? a : b;
+}
+
+static pid_t flush_and_fork(void)
+{
+ fflush(stdout);
+ return fork();
+}
+
+static void print_error(char *msg)
+{
+ ksft_print_msg("%s: %s\n", msg, strerror(errno));
+}
+
+static int wait_for_process(pid_t pid)
+{
+ int status;
+ int wait_res;
+
+ wait_res = waitpid(pid, &status, 0);
+ if (wait_res <= 0) {
+ print_error("Can't wait for the child");
+ return -EINVAL;
+ }
+ if (!WIFEXITED(status)) {
+ ksft_print_msg("Unexpected child status pid=%d\n", pid);
+ return -EINVAL;
+ }
+ status = WEXITSTATUS(status);
+ if (status != 0)
+ return status;
+ return 0;
+}
+
+static void rnd_buf(uint8_t *data, size_t len, unsigned int seed)
+{
+ int i;
+
+ for (i = 0; i < len; i++) {
+ seed = 1103515245 * seed + 12345;
+ data[i] = (uint8_t)(seed >> (i % 13));
+ }
+}
+
+char *bin2hex(char *dst, const void *src, size_t count)
+{
+ const unsigned char *_src = src;
+ static const char hex_asc[] = "0123456789abcdef";
+
+ while (count--) {
+ unsigned char x = *_src++;
+
+ *dst++ = hex_asc[(x & 0xf0) >> 4];
+ *dst++ = hex_asc[(x & 0x0f)];
+ }
+ *dst = 0;
+ return dst;
+}
+
+static char *get_index_filename(const char *mnt_dir, incfs_uuid_t id)
+{
+ char path[FILENAME_MAX];
+ char str_id[1 + 2 * sizeof(id)];
+
+ bin2hex(str_id, id.bytes, sizeof(id.bytes));
+ snprintf(path, ARRAY_SIZE(path), "%s/.index/%s", mnt_dir, str_id);
+
+ return strdup(path);
+}
+
+int open_file_by_id(const char *mnt_dir, incfs_uuid_t id, bool use_ioctl)
+{
+ char *path = get_index_filename(mnt_dir, id);
+ int cmd_fd = open_commands_file(mnt_dir);
+ int fd = open(path, O_RDWR | O_CLOEXEC);
+ struct incfs_permit_fill permit_fill = {
+ .file_descriptor = fd,
+ };
+ int error = 0;
+
+ if (fd < 0) {
+ print_error("Can't open file by id.");
+ error = -errno;
+ goto out;
+ }
+
+ if (use_ioctl && ioctl(cmd_fd, INCFS_IOC_PERMIT_FILL, &permit_fill)) {
+ print_error("Failed to call PERMIT_FILL");
+ error = -errno;
+ goto out;
+ }
+
+ if (ioctl(fd, INCFS_IOC_PERMIT_FILL, &permit_fill) != -1 ||
+ errno != EPERM) {
+ print_error(
+ "Successfully called PERMIT_FILL on non pending_read file");
+ return -errno;
+ goto out;
+ }
+
+out:
+ free(path);
+ close(cmd_fd);
+
+ if (error) {
+ close(fd);
+ return error;
+ }
+
+ return fd;
+}
+
+int get_file_attr(char *mnt_dir, incfs_uuid_t id, char *value, int size)
+{
+ char *path = get_index_filename(mnt_dir, id);
+ int res;
+
+ res = getxattr(path, INCFS_XATTR_METADATA_NAME, value, size);
+ if (res < 0)
+ res = -errno;
+
+ free(path);
+ return res;
+}
+
+static bool same_id(incfs_uuid_t *id1, incfs_uuid_t *id2)
+{
+ return !memcmp(id1->bytes, id2->bytes, sizeof(id1->bytes));
+}
+
+static int emit_test_blocks(char *mnt_dir, struct test_file *file,
+ int blocks[], int count)
+{
+ uint8_t data[INCFS_DATA_FILE_BLOCK_SIZE];
+ uint8_t comp_data[2 * INCFS_DATA_FILE_BLOCK_SIZE];
+ int block_count = (count > 32) ? 32 : count;
+ int data_buf_size = 2 * INCFS_DATA_FILE_BLOCK_SIZE * block_count;
+ uint8_t *data_buf = malloc(data_buf_size);
+ uint8_t *current_data = data_buf;
+ uint8_t *data_end = data_buf + data_buf_size;
+ struct incfs_fill_block *block_buf =
+ calloc(block_count, sizeof(struct incfs_fill_block));
+ struct incfs_fill_blocks fill_blocks = {
+ .count = block_count,
+ .fill_blocks = ptr_to_u64(block_buf),
+ };
+ ssize_t write_res = 0;
+ int fd = -1;
+ int error = 0;
+ int i = 0;
+ int blocks_written = 0;
+
+ for (i = 0; i < block_count; i++) {
+ int block_index = blocks[i];
+ bool compress = (file->index + block_index) % 2 == 0;
+ int seed = get_file_block_seed(file->index, block_index);
+ off_t block_offset =
+ ((off_t)block_index) * INCFS_DATA_FILE_BLOCK_SIZE;
+ size_t block_size = 0;
+
+ if (block_offset > file->size) {
+ error = -EINVAL;
+ break;
+ }
+ if (file->size - block_offset >
+ INCFS_DATA_FILE_BLOCK_SIZE)
+ block_size = INCFS_DATA_FILE_BLOCK_SIZE;
+ else
+ block_size = file->size - block_offset;
+
+ rnd_buf(data, block_size, seed);
+ if (compress) {
+ size_t comp_size = LZ4_compress_default(
+ (char *)data, (char *)comp_data, block_size,
+ ARRAY_SIZE(comp_data));
+
+ if (comp_size <= 0) {
+ error = -EBADMSG;
+ break;
+ }
+ if (current_data + comp_size > data_end) {
+ error = -ENOMEM;
+ break;
+ }
+ memcpy(current_data, comp_data, comp_size);
+ block_size = comp_size;
+ block_buf[i].compression = COMPRESSION_LZ4;
+ } else {
+ if (current_data + block_size > data_end) {
+ error = -ENOMEM;
+ break;
+ }
+ memcpy(current_data, data, block_size);
+ block_buf[i].compression = COMPRESSION_NONE;
+ }
+
+ block_buf[i].block_index = block_index;
+ block_buf[i].data_len = block_size;
+ block_buf[i].data = ptr_to_u64(current_data);
+ current_data += block_size;
+ }
+
+ if (!error) {
+ fd = open_file_by_id(mnt_dir, file->id, false);
+ if (fd < 0) {
+ error = -errno;
+ goto out;
+ }
+ write_res = ioctl(fd, INCFS_IOC_FILL_BLOCKS, &fill_blocks);
+ if (write_res >= 0) {
+ ksft_print_msg("Wrote to file via normal fd error\n");
+ error = -EPERM;
+ goto out;
+ }
+
+ close(fd);
+ fd = open_file_by_id(mnt_dir, file->id, true);
+ if (fd < 0) {
+ error = -errno;
+ goto out;
+ }
+ write_res = ioctl(fd, INCFS_IOC_FILL_BLOCKS, &fill_blocks);
+ if (write_res < 0)
+ error = -errno;
+ else
+ blocks_written = write_res;
+ }
+ if (error) {
+ ksft_print_msg(
+ "Writing data block error. Write returned: %d. Error:%s\n",
+ write_res, strerror(-error));
+ }
+
+out:
+ free(block_buf);
+ free(data_buf);
+ close(fd);
+ return (error < 0) ? error : blocks_written;
+}
+
+static int emit_test_block(char *mnt_dir, struct test_file *file,
+ int block_index)
+{
+ int res = emit_test_blocks(mnt_dir, file, &block_index, 1);
+
+ if (res == 0)
+ return -EINVAL;
+ if (res == 1)
+ return 0;
+ return res;
+}
+
+static void shuffle(int array[], int count, unsigned int seed)
+{
+ int i;
+
+ for (i = 0; i < count - 1; i++) {
+ int items_left = count - i;
+ int shuffle_index;
+ int v;
+
+ seed = 1103515245 * seed + 12345;
+ shuffle_index = i + seed % items_left;
+
+ v = array[shuffle_index];
+ array[shuffle_index] = array[i];
+ array[i] = v;
+ }
+}
+
+static int emit_test_file_data(char *mount_dir, struct test_file *file)
+{
+ int i;
+ int block_cnt = 1 + (file->size - 1) / INCFS_DATA_FILE_BLOCK_SIZE;
+ int *block_indexes = NULL;
+ int result = 0;
+ int blocks_written = 0;
+
+ if (file->size == 0)
+ return 0;
+
+ block_indexes = calloc(block_cnt, sizeof(*block_indexes));
+ for (i = 0; i < block_cnt; i++)
+ block_indexes[i] = i;
+ shuffle(block_indexes, block_cnt, file->index);
+
+ for (i = 0; i < block_cnt; i += blocks_written) {
+ blocks_written = emit_test_blocks(mount_dir, file,
+ block_indexes + i, block_cnt - i);
+ if (blocks_written < 0) {
+ result = blocks_written;
+ goto out;
+ }
+ if (blocks_written == 0) {
+ result = -EIO;
+ goto out;
+ }
+ }
+out:
+ free(block_indexes);
+ return result;
+}
+
+static loff_t read_whole_file(char *filename)
+{
+ int fd = -1;
+ loff_t result;
+ loff_t bytes_read = 0;
+ uint8_t buff[16 * 1024];
+
+ fd = open(filename, O_RDONLY | O_CLOEXEC);
+ if (fd <= 0)
+ return fd;
+
+ while (1) {
+ int read_result = read(fd, buff, ARRAY_SIZE(buff));
+
+ if (read_result < 0) {
+ print_error("Error during reading from a file.");
+ result = -errno;
+ goto cleanup;
+ } else if (read_result == 0)
+ break;
+
+ bytes_read += read_result;
+ }
+ result = bytes_read;
+
+cleanup:
+ close(fd);
+ return result;
+}
+
+static int read_test_file(uint8_t *buf, size_t len, char *filename,
+ int block_idx)
+{
+ int fd = -1;
+ int result;
+ int bytes_read = 0;
+ size_t bytes_to_read = len;
+ off_t offset = ((off_t)block_idx) * INCFS_DATA_FILE_BLOCK_SIZE;
+
+ fd = open(filename, O_RDONLY | O_CLOEXEC);
+ if (fd <= 0)
+ return fd;
+
+ if (lseek(fd, offset, SEEK_SET) != offset) {
+ print_error("Seek error");
+ return -errno;
+ }
+
+ while (bytes_read < bytes_to_read) {
+ int read_result =
+ read(fd, buf + bytes_read, bytes_to_read - bytes_read);
+ if (read_result < 0) {
+ result = -errno;
+ goto cleanup;
+ } else if (read_result == 0)
+ break;
+
+ bytes_read += read_result;
+ }
+ result = bytes_read;
+
+cleanup:
+ close(fd);
+ return result;
+}
+
+static char *create_backing_dir(char *mount_dir)
+{
+ struct stat st;
+ char backing_dir_name[255];
+
+ snprintf(backing_dir_name, ARRAY_SIZE(backing_dir_name), "%s-src",
+ mount_dir);
+
+ if (stat(backing_dir_name, &st) == 0) {
+ if (S_ISDIR(st.st_mode)) {
+ int error = delete_dir_tree(backing_dir_name);
+
+ if (error) {
+ ksft_print_msg(
+ "Can't delete existing backing dir. %d\n",
+ error);
+ return NULL;
+ }
+ } else {
+ if (unlink(backing_dir_name)) {
+ print_error("Can't clear backing dir");
+ return NULL;
+ }
+ }
+ }
+
+ if (mkdir(backing_dir_name, 0777)) {
+ if (errno != EEXIST) {
+ print_error("Can't open/create backing dir");
+ return NULL;
+ }
+ }
+
+ return strdup(backing_dir_name);
+}
+
+static int validate_test_file_content_with_seed(char *mount_dir,
+ struct test_file *file,
+ unsigned int shuffle_seed)
+{
+ int error = -1;
+ char *filename = concat_file_name(mount_dir, file->name);
+ off_t size = file->size;
+ loff_t actual_size = get_file_size(filename);
+ int block_cnt = 1 + (size - 1) / INCFS_DATA_FILE_BLOCK_SIZE;
+ int *block_indexes = NULL;
+ int i;
+
+ block_indexes = alloca(sizeof(int) * block_cnt);
+ for (i = 0; i < block_cnt; i++)
+ block_indexes[i] = i;
+
+ if (shuffle_seed != 0)
+ shuffle(block_indexes, block_cnt, shuffle_seed);
+
+ if (actual_size != size) {
+ ksft_print_msg(
+ "File size doesn't match. name: %s expected size:%ld actual size:%ld\n",
+ filename, size, actual_size);
+ error = -1;
+ goto failure;
+ }
+
+ for (i = 0; i < block_cnt; i++) {
+ int block_idx = block_indexes[i];
+ uint8_t expected_block[INCFS_DATA_FILE_BLOCK_SIZE];
+ uint8_t actual_block[INCFS_DATA_FILE_BLOCK_SIZE];
+ int seed = get_file_block_seed(file->index, block_idx);
+ size_t bytes_to_compare = min(
+ (off_t)INCFS_DATA_FILE_BLOCK_SIZE,
+ size - ((off_t)block_idx) * INCFS_DATA_FILE_BLOCK_SIZE);
+ int read_result =
+ read_test_file(actual_block, INCFS_DATA_FILE_BLOCK_SIZE,
+ filename, block_idx);
+ if (read_result < 0) {
+ ksft_print_msg(
+ "Error reading block %d from file %s. Error: %s\n",
+ block_idx, filename, strerror(-read_result));
+ error = read_result;
+ goto failure;
+ }
+ rnd_buf(expected_block, INCFS_DATA_FILE_BLOCK_SIZE, seed);
+ if (memcmp(expected_block, actual_block, bytes_to_compare)) {
+ ksft_print_msg(
+ "File contents don't match. name: %s block:%d\n",
+ file->name, block_idx);
+ error = -2;
+ goto failure;
+ }
+ }
+ free(filename);
+ return 0;
+
+failure:
+ free(filename);
+ return error;
+}
+
+static int validate_test_file_content(char *mount_dir, struct test_file *file)
+{
+ return validate_test_file_content_with_seed(mount_dir, file, 0);
+}
+
+static int data_producer(char *mount_dir, struct test_files_set *test_set)
+{
+ int ret = 0;
+ int timeout_ms = 1000;
+ struct incfs_pending_read_info prs[100] = {};
+ int prs_size = ARRAY_SIZE(prs);
+ int fd = open_commands_file(mount_dir);
+
+ if (fd < 0)
+ return -errno;
+
+ while ((ret = wait_for_pending_reads(fd, timeout_ms, prs, prs_size)) >
+ 0) {
+ int read_count = ret;
+ int i;
+
+ for (i = 0; i < read_count; i++) {
+ int j = 0;
+ struct test_file *file = NULL;
+
+ for (j = 0; j < test_set->files_count; j++) {
+ bool same = same_id(&(test_set->files[j].id),
+ &(prs[i].file_id));
+
+ if (same) {
+ file = &test_set->files[j];
+ break;
+ }
+ }
+ if (!file) {
+ ksft_print_msg(
+ "Unknown file in pending reads.\n");
+ break;
+ }
+
+ ret = emit_test_block(mount_dir, file,
+ prs[i].block_index);
+ if (ret < 0) {
+ ksft_print_msg("Emitting test data error: %s\n",
+ strerror(-ret));
+ break;
+ }
+ }
+ }
+ close(fd);
+ return ret;
+}
+
+static int build_mtree(struct test_file *file)
+{
+ char data[INCFS_DATA_FILE_BLOCK_SIZE] = {};
+ const int digest_size = SHA256_DIGEST_SIZE;
+ const int hash_per_block = INCFS_DATA_FILE_BLOCK_SIZE / digest_size;
+ int block_count = 0;
+ int hash_block_count = 0;
+ int total_tree_block_count = 0;
+ int tree_lvl_index[INCFS_MAX_MTREE_LEVELS] = {};
+ int tree_lvl_count[INCFS_MAX_MTREE_LEVELS] = {};
+ int levels_count = 0;
+ int i, level;
+
+ if (file->size == 0)
+ return 0;
+
+ block_count = 1 + (file->size - 1) / INCFS_DATA_FILE_BLOCK_SIZE;
+ hash_block_count = block_count;
+ for (i = 0; hash_block_count > 1; i++) {
+ hash_block_count = (hash_block_count + hash_per_block - 1)
+ / hash_per_block;
+ tree_lvl_count[i] = hash_block_count;
+ total_tree_block_count += hash_block_count;
+ }
+ levels_count = i;
+
+ for (i = 0; i < levels_count; i++) {
+ int prev_lvl_base = (i == 0) ? total_tree_block_count :
+ tree_lvl_index[i - 1];
+
+ tree_lvl_index[i] = prev_lvl_base - tree_lvl_count[i];
+ }
+
+ file->mtree_block_count = total_tree_block_count;
+ if (block_count == 1) {
+ int seed = get_file_block_seed(file->index, 0);
+
+ memset(data, 0, INCFS_DATA_FILE_BLOCK_SIZE);
+ rnd_buf((uint8_t *)data, file->size, seed);
+ sha256(data, INCFS_DATA_FILE_BLOCK_SIZE, file->root_hash);
+ return 0;
+ }
+
+ file->mtree = calloc(total_tree_block_count, sizeof(*file->mtree));
+ /* Build level 0 hashes. */
+ for (i = 0; i < block_count; i++) {
+ off_t offset = i * INCFS_DATA_FILE_BLOCK_SIZE;
+ size_t block_size = INCFS_DATA_FILE_BLOCK_SIZE;
+ int block_index = tree_lvl_index[0] +
+ i / hash_per_block;
+ int block_off = (i % hash_per_block) * digest_size;
+ int seed = get_file_block_seed(file->index, i);
+ char *hash_ptr = file->mtree[block_index].data + block_off;
+
+ if (file->size - offset < block_size) {
+ block_size = file->size - offset;
+ memset(data, 0, INCFS_DATA_FILE_BLOCK_SIZE);
+ }
+
+ rnd_buf((uint8_t *)data, block_size, seed);
+ sha256(data, INCFS_DATA_FILE_BLOCK_SIZE, hash_ptr);
+ }
+
+ /* Build higher levels of hash tree. */
+ for (level = 1; level < levels_count; level++) {
+ int prev_lvl_base = tree_lvl_index[level - 1];
+ int prev_lvl_count = tree_lvl_count[level - 1];
+
+ for (i = 0; i < prev_lvl_count; i++) {
+ int block_index =
+ i / hash_per_block + tree_lvl_index[level];
+ int block_off = (i % hash_per_block) * digest_size;
+ char *hash_ptr =
+ file->mtree[block_index].data + block_off;
+
+ sha256(file->mtree[i + prev_lvl_base].data,
+ INCFS_DATA_FILE_BLOCK_SIZE, hash_ptr);
+ }
+ }
+
+ /* Calculate root hash from the top block */
+ sha256(file->mtree[0].data,
+ INCFS_DATA_FILE_BLOCK_SIZE, file->root_hash);
+
+ return 0;
+}
+
+static int load_hash_tree(const char *mount_dir, struct test_file *file)
+{
+ int err;
+ int i;
+ int fd;
+ struct incfs_fill_blocks fill_blocks = {
+ .count = file->mtree_block_count,
+ };
+ struct incfs_fill_block *fill_block_array =
+ calloc(fill_blocks.count, sizeof(struct incfs_fill_block));
+
+ if (fill_blocks.count == 0)
+ return 0;
+
+ if (!fill_block_array)
+ return -ENOMEM;
+ fill_blocks.fill_blocks = ptr_to_u64(fill_block_array);
+
+ for (i = 0; i < fill_blocks.count; i++) {
+ fill_block_array[i] = (struct incfs_fill_block){
+ .block_index = i,
+ .data_len = INCFS_DATA_FILE_BLOCK_SIZE,
+ .data = ptr_to_u64(file->mtree[i].data),
+ .flags = INCFS_BLOCK_FLAGS_HASH
+ };
+ }
+
+ fd = open_file_by_id(mount_dir, file->id, false);
+ if (fd < 0) {
+ err = errno;
+ goto failure;
+ }
+
+ err = ioctl(fd, INCFS_IOC_FILL_BLOCKS, &fill_blocks);
+ close(fd);
+ if (err >= 0) {
+ err = -EPERM;
+ goto failure;
+ }
+
+ fd = open_file_by_id(mount_dir, file->id, true);
+ if (fd < 0) {
+ err = errno;
+ goto failure;
+ }
+
+ err = ioctl(fd, INCFS_IOC_FILL_BLOCKS, &fill_blocks);
+ close(fd);
+ if (err < fill_blocks.count)
+ err = errno;
+ else {
+ err = 0;
+ free(file->mtree);
+ }
+
+failure:
+ free(fill_block_array);
+ return err;
+}
+
+static int cant_touch_index_test(char *mount_dir)
+{
+ char *file_name = "test_file";
+ int file_size = 123;
+ incfs_uuid_t file_id;
+ char *index_path = concat_file_name(mount_dir, ".index");
+ char *subdir = concat_file_name(index_path, "subdir");
+ char *dst_name = concat_file_name(mount_dir, "something");
+ char *filename_in_index = NULL;
+ char *file_path = concat_file_name(mount_dir, file_name);
+ char *backing_dir;
+ int cmd_fd = -1;
+ int err;
+
+ backing_dir = create_backing_dir(mount_dir);
+ if (!backing_dir)
+ goto failure;
+
+ /* Mount FS and release the backing file. */
+ if (mount_fs(mount_dir, backing_dir, 50) != 0)
+ goto failure;
+ free(backing_dir);
+
+ cmd_fd = open_commands_file(mount_dir);
+ if (cmd_fd < 0)
+ goto failure;
+
+
+ err = mkdir(subdir, 0777);
+ if (err == 0 || errno != EBUSY) {
+ print_error("Shouldn't be able to crate subdir in index\n");
+ goto failure;
+ }
+
+ err = emit_file(cmd_fd, ".index", file_name, &file_id,
+ file_size, NULL);
+ if (err != -EBUSY) {
+ print_error("Shouldn't be able to crate a file in index\n");
+ goto failure;
+ }
+
+ err = emit_file(cmd_fd, NULL, file_name, &file_id,
+ file_size, NULL);
+ if (err < 0)
+ goto failure;
+ filename_in_index = get_index_filename(mount_dir, file_id);
+
+ err = unlink(filename_in_index);
+ if (err == 0 || errno != EBUSY) {
+ print_error("Shouldn't be delete from index\n");
+ goto failure;
+ }
+
+
+ err = rename(filename_in_index, dst_name);
+ if (err == 0 || errno != EBUSY) {
+ print_error("Shouldn't be able to move from index\n");
+ goto failure;
+ }
+
+ free(filename_in_index);
+ filename_in_index = concat_file_name(index_path, "abc");
+ err = link(file_path, filename_in_index);
+ if (err == 0 || errno != EBUSY) {
+ print_error("Shouldn't be able to link inside index\n");
+ goto failure;
+ }
+
+ close(cmd_fd);
+ free(subdir);
+ free(index_path);
+ free(dst_name);
+ free(filename_in_index);
+ if (umount(mount_dir) != 0) {
+ print_error("Can't unmout FS");
+ goto failure;
+ }
+
+ return TEST_SUCCESS;
+
+failure:
+ free(subdir);
+ free(dst_name);
+ free(index_path);
+ free(filename_in_index);
+ close(cmd_fd);
+ umount(mount_dir);
+ return TEST_FAILURE;
+}
+
+static bool iterate_directory(char *dir_to_iterate, bool root, int file_count)
+{
+ struct expected_name {
+ const char *name;
+ bool root_only;
+ bool found;
+ } names[] = {
+ {INCFS_LOG_FILENAME, true, false},
+ {INCFS_PENDING_READS_FILENAME, true, false},
+ {".index", true, false},
+ {"..", false, false},
+ {".", false, false},
+ };
+
+ bool pass = true, found;
+ int i;
+
+ /* Test directory iteration */
+ int fd = open(dir_to_iterate, O_RDONLY | O_DIRECTORY | O_CLOEXEC);
+
+ if (fd < 0) {
+ print_error("Can't open directory\n");
+ return false;
+ }
+
+ for (;;) {
+ /* Enough space for one dirent - no name over 30 */
+ char buf[sizeof(struct linux_dirent64) + NAME_MAX];
+ struct linux_dirent64 *dirent = (struct linux_dirent64 *) buf;
+ int nread;
+ int i;
+
+ for (i = 0; i < NAME_MAX; ++i) {
+ nread = syscall(__NR_getdents64, fd, buf,
+ sizeof(struct linux_dirent64) + i);
+
+ if (nread >= 0)
+ break;
+ if (errno != EINVAL)
+ break;
+ }
+
+ if (nread == 0)
+ break;
+ if (nread < 0) {
+ print_error("Error iterating directory\n");
+ pass = false;
+ goto failure;
+ }
+
+ /* Expected size is rounded up to 8 byte boundary. Not sure if
+ * this is universal truth or just happenstance, but useful test
+ * for the moment
+ */
+ if (nread != (((sizeof(struct linux_dirent64)
+ + strlen(dirent->d_name) + 1) + 7) & ~7)) {
+ print_error("Wrong dirent size");
+ pass = false;
+ goto failure;
+ }
+
+ found = false;
+ for (i = 0; i < sizeof(names) / sizeof(*names); ++i)
+ if (!strcmp(dirent->d_name, names[i].name)) {
+ if (names[i].root_only && !root) {
+ print_error("Root file error");
+ pass = false;
+ goto failure;
+ }
+
+ if (names[i].found) {
+ print_error("File appears twice");
+ pass = false;
+ goto failure;
+ }
+
+ names[i].found = true;
+ found = true;
+ break;
+ }
+
+ if (!found)
+ --file_count;
+ }
+
+ for (i = 0; i < sizeof(names) / sizeof(*names); ++i) {
+ if (!names[i].found)
+ if (root || !names[i].root_only) {
+ print_error("Expected file not present");
+ pass = false;
+ goto failure;
+ }
+ }
+
+ if (file_count) {
+ print_error("Wrong number of files\n");
+ pass = false;
+ goto failure;
+ }
+
+failure:
+ close(fd);
+ return pass;
+}
+
+static int basic_file_ops_test(char *mount_dir)
+{
+ struct test_files_set test = get_test_files_set();
+ const int file_num = test.files_count;
+ char *subdir1 = concat_file_name(mount_dir, "subdir1");
+ char *subdir2 = concat_file_name(mount_dir, "subdir2");
+ char *backing_dir;
+ int cmd_fd = -1;
+ int i, err;
+
+ backing_dir = create_backing_dir(mount_dir);
+ if (!backing_dir)
+ goto failure;
+
+ /* Mount FS and release the backing file. */
+ if (mount_fs(mount_dir, backing_dir, 50) != 0)
+ goto failure;
+ free(backing_dir);
+
+ cmd_fd = open_commands_file(mount_dir);
+ if (cmd_fd < 0)
+ goto failure;
+
+ err = mkdir(subdir1, 0777);
+ if (err < 0 && errno != EEXIST) {
+ print_error("Can't create subdir1\n");
+ goto failure;
+ }
+
+ err = mkdir(subdir2, 0777);
+ if (err < 0 && errno != EEXIST) {
+ print_error("Can't create subdir2\n");
+ goto failure;
+ }
+
+ /* Create all test files in subdir1 directory */
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+ loff_t size;
+ char *file_path = concat_file_name(subdir1, file->name);
+
+ err = emit_file(cmd_fd, "subdir1", file->name, &file->id,
+ file->size, NULL);
+ if (err < 0)
+ goto failure;
+
+ size = get_file_size(file_path);
+ free(file_path);
+ if (size != file->size) {
+ ksft_print_msg("Wrong size %lld of %s.\n",
+ size, file->name);
+ goto failure;
+ }
+ }
+
+ if (!iterate_directory(subdir1, false, file_num))
+ goto failure;
+
+ /* Link the files to subdir2 */
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+ char *src_name = concat_file_name(subdir1, file->name);
+ char *dst_name = concat_file_name(subdir2, file->name);
+ loff_t size;
+
+ err = link(src_name, dst_name);
+ if (err < 0) {
+ print_error("Can't move file\n");
+ goto failure;
+ }
+
+ size = get_file_size(dst_name);
+ if (size != file->size) {
+ ksft_print_msg("Wrong size %lld of %s.\n",
+ size, file->name);
+ goto failure;
+ }
+ free(src_name);
+ free(dst_name);
+ }
+
+ /* Move the files from subdir2 to the mount dir */
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+ char *src_name = concat_file_name(subdir2, file->name);
+ char *dst_name = concat_file_name(mount_dir, file->name);
+ loff_t size;
+
+ err = rename(src_name, dst_name);
+ if (err < 0) {
+ print_error("Can't move file\n");
+ goto failure;
+ }
+
+ size = get_file_size(dst_name);
+ if (size != file->size) {
+ ksft_print_msg("Wrong size %lld of %s.\n",
+ size, file->name);
+ goto failure;
+ }
+ free(src_name);
+ free(dst_name);
+ }
+
+ /* +2 because there are 2 subdirs */
+ if (!iterate_directory(mount_dir, true, file_num + 2))
+ goto failure;
+
+ /* Open and close all files from the mount dir */
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+ char *path = concat_file_name(mount_dir, file->name);
+ int fd;
+
+ fd = open(path, O_RDWR | O_CLOEXEC);
+ free(path);
+ if (fd <= 0) {
+ print_error("Can't open file");
+ goto failure;
+ }
+ if (close(fd)) {
+ print_error("Can't close file");
+ goto failure;
+ }
+ }
+
+ /* Delete all files from the mount dir */
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+ char *path = concat_file_name(mount_dir, file->name);
+
+ err = unlink(path);
+ free(path);
+ if (err < 0) {
+ print_error("Can't unlink file");
+ goto failure;
+ }
+ }
+
+ err = delete_dir_tree(subdir1);
+ if (err) {
+ ksft_print_msg("Error deleting subdir1 %d", err);
+ goto failure;
+ }
+
+ err = rmdir(subdir2);
+ if (err) {
+ print_error("Error deleting subdir2");
+ goto failure;
+ }
+
+ close(cmd_fd);
+ cmd_fd = -1;
+ if (umount(mount_dir) != 0) {
+ print_error("Can't unmout FS");
+ goto failure;
+ }
+
+ return TEST_SUCCESS;
+
+failure:
+ close(cmd_fd);
+ umount(mount_dir);
+ return TEST_FAILURE;
+}
+
+static int dynamic_files_and_data_test(char *mount_dir)
+{
+ struct test_files_set test = get_test_files_set();
+ const int file_num = test.files_count;
+ const int missing_file_idx = 5;
+ int cmd_fd = -1;
+ char *backing_dir;
+ int i;
+
+ backing_dir = create_backing_dir(mount_dir);
+ if (!backing_dir)
+ goto failure;
+
+ /* Mount FS and release the backing file. */
+ if (mount_fs(mount_dir, backing_dir, 50) != 0)
+ goto failure;
+ free(backing_dir);
+
+ cmd_fd = open_commands_file(mount_dir);
+ if (cmd_fd < 0)
+ goto failure;
+
+ /* Check that test files don't exist in the filesystem. */
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+ char *filename = concat_file_name(mount_dir, file->name);
+
+ if (access(filename, F_OK) != -1) {
+ ksft_print_msg(
+ "File %s somehow already exists in a clean FS.\n",
+ filename);
+ goto failure;
+ }
+ free(filename);
+ }
+
+ /* Write test data into the command file. */
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+ int res;
+
+ build_mtree(file);
+ res = emit_file(cmd_fd, NULL, file->name, &file->id,
+ file->size, NULL);
+ if (res < 0) {
+ ksft_print_msg("Error %s emiting file %s.\n",
+ strerror(-res), file->name);
+ goto failure;
+ }
+
+ /* Skip writing data to one file so we can check */
+ /* that it's missing later. */
+ if (i == missing_file_idx)
+ continue;
+
+ res = emit_test_file_data(mount_dir, file);
+ if (res) {
+ ksft_print_msg("Error %s emiting data for %s.\n",
+ strerror(-res), file->name);
+ goto failure;
+ }
+ }
+
+ /* Validate contents of the FS */
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+
+ if (i == missing_file_idx) {
+ /* No data has been written to this file. */
+ /* Check for read error; */
+ uint8_t buf;
+ char *filename =
+ concat_file_name(mount_dir, file->name);
+ int res = read_test_file(&buf, 1, filename, 0);
+
+ free(filename);
+ if (res > 0) {
+ ksft_print_msg(
+ "Data present, even though never writtern.\n");
+ goto failure;
+ }
+ if (res != -ETIME) {
+ ksft_print_msg("Wrong error code: %d.\n", res);
+ goto failure;
+ }
+ } else {
+ if (validate_test_file_content(mount_dir, file) < 0)
+ goto failure;
+ }
+ }
+
+ close(cmd_fd);
+ cmd_fd = -1;
+ if (umount(mount_dir) != 0) {
+ print_error("Can't unmout FS");
+ goto failure;
+ }
+
+ return TEST_SUCCESS;
+
+failure:
+ close(cmd_fd);
+ umount(mount_dir);
+ return TEST_FAILURE;
+}
+
+static int concurrent_reads_and_writes_test(char *mount_dir)
+{
+ struct test_files_set test = get_test_files_set();
+ const int file_num = test.files_count;
+ /* Validate each file from that many child processes. */
+ const int child_multiplier = 3;
+ int cmd_fd = -1;
+ char *backing_dir;
+ int status;
+ int i;
+ pid_t producer_pid;
+ pid_t *child_pids = alloca(child_multiplier * file_num * sizeof(pid_t));
+
+ backing_dir = create_backing_dir(mount_dir);
+ if (!backing_dir)
+ goto failure;
+
+ /* Mount FS and release the backing file. */
+ if (mount_fs(mount_dir, backing_dir, 50) != 0)
+ goto failure;
+ free(backing_dir);
+
+ cmd_fd = open_commands_file(mount_dir);
+ if (cmd_fd < 0)
+ goto failure;
+
+ /* Tell FS about the files, without actually providing the data. */
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+ int res;
+
+ res = emit_file(cmd_fd, NULL, file->name, &file->id,
+ file->size, NULL);
+ if (res)
+ goto failure;
+ }
+
+ /* Start child processes acessing data in the files */
+ for (i = 0; i < file_num * child_multiplier; i++) {
+ struct test_file *file = &test.files[i / child_multiplier];
+ pid_t child_pid = flush_and_fork();
+
+ if (child_pid == 0) {
+ /* This is a child process, do the data validation. */
+ int ret = validate_test_file_content_with_seed(
+ mount_dir, file, i);
+ if (ret >= 0) {
+ /* Zero exit status if data is valid. */
+ exit(0);
+ }
+
+ /* Positive status if validation error found. */
+ exit(-ret);
+ } else if (child_pid > 0) {
+ child_pids[i] = child_pid;
+ } else {
+ print_error("Fork error");
+ goto failure;
+ }
+ }
+
+ producer_pid = flush_and_fork();
+ if (producer_pid == 0) {
+ int ret;
+ /*
+ * This is a child that should provide data to
+ * pending reads.
+ */
+
+ ret = data_producer(mount_dir, &test);
+ exit(-ret);
+ } else {
+ status = wait_for_process(producer_pid);
+ if (status != 0) {
+ ksft_print_msg("Data produces failed. %d(%s) ", status,
+ strerror(status));
+ goto failure;
+ }
+ }
+
+ /* Check that all children has finished with 0 exit status */
+ for (i = 0; i < file_num * child_multiplier; i++) {
+ struct test_file *file = &test.files[i / child_multiplier];
+
+ status = wait_for_process(child_pids[i]);
+ if (status != 0) {
+ ksft_print_msg(
+ "Validation for the file %s failed with code %d (%s)\n",
+ file->name, status, strerror(status));
+ goto failure;
+ }
+ }
+
+ /* Check that there are no pending reads left */
+ {
+ struct incfs_pending_read_info prs[1] = {};
+ int timeout = 0;
+ int read_count = wait_for_pending_reads(cmd_fd, timeout, prs,
+ ARRAY_SIZE(prs));
+
+ if (read_count) {
+ ksft_print_msg(
+ "Pending reads pending when all data written\n");
+ goto failure;
+ }
+ }
+
+ close(cmd_fd);
+ cmd_fd = -1;
+ if (umount(mount_dir) != 0) {
+ print_error("Can't unmout FS");
+ goto failure;
+ }
+
+ return TEST_SUCCESS;
+
+failure:
+ close(cmd_fd);
+ umount(mount_dir);
+ return TEST_FAILURE;
+}
+
+static int work_after_remount_test(char *mount_dir)
+{
+ struct test_files_set test = get_test_files_set();
+ const int file_num = test.files_count;
+ const int file_num_stage1 = file_num / 2;
+ const int file_num_stage2 = file_num;
+ char *backing_dir = NULL;
+ int i = 0;
+ int cmd_fd = -1;
+
+ backing_dir = create_backing_dir(mount_dir);
+ if (!backing_dir)
+ goto failure;
+
+ /* Mount FS and release the backing file. */
+ if (mount_fs(mount_dir, backing_dir, 50) != 0)
+ goto failure;
+
+ cmd_fd = open_commands_file(mount_dir);
+ if (cmd_fd < 0)
+ goto failure;
+
+ /* Write first half of the data into the command file. (stage 1) */
+ for (i = 0; i < file_num_stage1; i++) {
+ struct test_file *file = &test.files[i];
+
+ build_mtree(file);
+ if (emit_file(cmd_fd, NULL, file->name, &file->id,
+ file->size, NULL))
+ goto failure;
+
+ if (emit_test_file_data(mount_dir, file))
+ goto failure;
+ }
+
+ /* Unmount and mount again, to see that data is persistent. */
+ close(cmd_fd);
+ cmd_fd = -1;
+ if (umount(mount_dir) != 0) {
+ print_error("Can't unmout FS");
+ goto failure;
+ }
+
+ if (mount_fs(mount_dir, backing_dir, 50) != 0)
+ goto failure;
+
+ cmd_fd = open_commands_file(mount_dir);
+ if (cmd_fd < 0)
+ goto failure;
+
+ /* Write the second half of the data into the command file. (stage 2) */
+ for (; i < file_num_stage2; i++) {
+ struct test_file *file = &test.files[i];
+ int res = emit_file(cmd_fd, NULL, file->name, &file->id,
+ file->size, NULL);
+
+ if (res)
+ goto failure;
+
+ if (emit_test_file_data(mount_dir, file))
+ goto failure;
+ }
+
+ /* Validate contents of the FS */
+ for (i = 0; i < file_num_stage2; i++) {
+ struct test_file *file = &test.files[i];
+
+ if (validate_test_file_content(mount_dir, file) < 0)
+ goto failure;
+ }
+
+ /* Delete all files */
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+ char *filename = concat_file_name(mount_dir, file->name);
+ char *filename_in_index = get_index_filename(mount_dir,
+ file->id);
+
+ if (access(filename, F_OK) != 0) {
+ ksft_print_msg("File %s is not visible.\n", filename);
+ goto failure;
+ }
+
+ if (access(filename_in_index, F_OK) != 0) {
+ ksft_print_msg("File %s is not visible.\n",
+ filename_in_index);
+ goto failure;
+ }
+
+ unlink(filename);
+
+ if (access(filename, F_OK) != -1) {
+ ksft_print_msg("File %s is still present.\n", filename);
+ goto failure;
+ }
+
+ if (access(filename_in_index, F_OK) != 0) {
+ ksft_print_msg("File %s is still present.\n",
+ filename_in_index);
+ goto failure;
+ }
+ free(filename);
+ free(filename_in_index);
+ }
+
+ /* Unmount and mount again, to see that deleted files stay deleted. */
+ close(cmd_fd);
+ cmd_fd = -1;
+ if (umount(mount_dir) != 0) {
+ print_error("Can't unmout FS");
+ goto failure;
+ }
+
+ if (mount_fs(mount_dir, backing_dir, 50) != 0)
+ goto failure;
+
+ cmd_fd = open_commands_file(mount_dir);
+ if (cmd_fd < 0)
+ goto failure;
+
+ /* Validate all deleted files are still deleted. */
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+ char *filename = concat_file_name(mount_dir, file->name);
+
+ if (access(filename, F_OK) != -1) {
+ ksft_print_msg("File %s is still visible.\n", filename);
+ goto failure;
+ }
+ free(filename);
+ }
+
+ /* Final unmount */
+ close(cmd_fd);
+ free(backing_dir);
+ cmd_fd = -1;
+ if (umount(mount_dir) != 0) {
+ print_error("Can't unmout FS");
+ goto failure;
+ }
+
+ return TEST_SUCCESS;
+
+failure:
+ close(cmd_fd);
+ free(backing_dir);
+ umount(mount_dir);
+ return TEST_FAILURE;
+}
+
+static int attribute_test(char *mount_dir)
+{
+ char file_attr[] = "metadata123123";
+ char attr_buf[INCFS_MAX_FILE_ATTR_SIZE] = {};
+ int cmd_fd = -1;
+ incfs_uuid_t file_id;
+ int attr_res = 0;
+ char *backing_dir;
+
+
+ backing_dir = create_backing_dir(mount_dir);
+ if (!backing_dir)
+ goto failure;
+
+ /* Mount FS and release the backing file. */
+ if (mount_fs(mount_dir, backing_dir, 50) != 0)
+ goto failure;
+
+
+ cmd_fd = open_commands_file(mount_dir);
+ if (cmd_fd < 0)
+ goto failure;
+
+ if (emit_file(cmd_fd, NULL, "file", &file_id, 12, file_attr))
+ goto failure;
+
+ /* Test attribute values */
+ attr_res = get_file_attr(mount_dir, file_id, attr_buf,
+ ARRAY_SIZE(attr_buf));
+ if (attr_res != strlen(file_attr)) {
+ ksft_print_msg("Get file attr error: %d\n", attr_res);
+ goto failure;
+ }
+ if (strcmp(attr_buf, file_attr) != 0) {
+ ksft_print_msg("Incorrect file attr value: '%s'", attr_buf);
+ goto failure;
+ }
+
+ /* Unmount and mount again, to see that attributes are persistent. */
+ close(cmd_fd);
+ cmd_fd = -1;
+ if (umount(mount_dir) != 0) {
+ print_error("Can't unmout FS");
+ goto failure;
+ }
+
+ if (mount_fs(mount_dir, backing_dir, 50) != 0)
+ goto failure;
+
+ cmd_fd = open_commands_file(mount_dir);
+ if (cmd_fd < 0)
+ goto failure;
+
+ /* Test attribute values again after remount*/
+ attr_res = get_file_attr(mount_dir, file_id, attr_buf,
+ ARRAY_SIZE(attr_buf));
+ if (attr_res != strlen(file_attr)) {
+ ksft_print_msg("Get dir attr error: %d\n", attr_res);
+ goto failure;
+ }
+ if (strcmp(attr_buf, file_attr) != 0) {
+ ksft_print_msg("Incorrect file attr value: '%s'", attr_buf);
+ goto failure;
+ }
+
+ /* Final unmount */
+ close(cmd_fd);
+ free(backing_dir);
+ cmd_fd = -1;
+ if (umount(mount_dir) != 0) {
+ print_error("Can't unmout FS");
+ goto failure;
+ }
+
+ return TEST_SUCCESS;
+
+failure:
+ close(cmd_fd);
+ free(backing_dir);
+ umount(mount_dir);
+ return TEST_FAILURE;
+}
+
+static int child_procs_waiting_for_data_test(char *mount_dir)
+{
+ struct test_files_set test = get_test_files_set();
+ const int file_num = test.files_count;
+ int cmd_fd = -1;
+ int i;
+ pid_t *child_pids = alloca(file_num * sizeof(pid_t));
+ char *backing_dir;
+
+ backing_dir = create_backing_dir(mount_dir);
+ if (!backing_dir)
+ goto failure;
+
+ /* Mount FS and release the backing file. (10s wait time) */
+ if (mount_fs(mount_dir, backing_dir, 10000) != 0)
+ goto failure;
+
+
+ cmd_fd = open_commands_file(mount_dir);
+ if (cmd_fd < 0)
+ goto failure;
+
+ /* Tell FS about the files, without actually providing the data. */
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+
+ emit_file(cmd_fd, NULL, file->name, &file->id,
+ file->size, NULL);
+ }
+
+ /* Start child processes acessing data in the files */
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+ pid_t child_pid = flush_and_fork();
+
+ if (child_pid == 0) {
+ /* This is a child process, do the data validation. */
+ int ret = validate_test_file_content(mount_dir, file);
+
+ if (ret >= 0) {
+ /* Zero exit status if data is valid. */
+ exit(0);
+ }
+
+ /* Positive status if validation error found. */
+ exit(-ret);
+ } else if (child_pid > 0) {
+ child_pids[i] = child_pid;
+ } else {
+ print_error("Fork error");
+ goto failure;
+ }
+ }
+
+ /* Write test data into the command file. */
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+
+ if (emit_test_file_data(mount_dir, file))
+ goto failure;
+ }
+
+ /* Check that all children has finished with 0 exit status */
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+ int status = wait_for_process(child_pids[i]);
+
+ if (status != 0) {
+ ksft_print_msg(
+ "Validation for the file %s failed with code %d (%s)\n",
+ file->name, status, strerror(status));
+ goto failure;
+ }
+ }
+
+ close(cmd_fd);
+ free(backing_dir);
+ cmd_fd = -1;
+ if (umount(mount_dir) != 0) {
+ print_error("Can't unmout FS");
+ goto failure;
+ }
+
+ return TEST_SUCCESS;
+
+failure:
+ close(cmd_fd);
+ free(backing_dir);
+ umount(mount_dir);
+ return TEST_FAILURE;
+}
+
+static int multiple_providers_test(char *mount_dir)
+{
+ struct test_files_set test = get_test_files_set();
+ const int file_num = test.files_count;
+ const int producer_count = 5;
+ int cmd_fd = -1;
+ int status;
+ int i;
+ pid_t *producer_pids = alloca(producer_count * sizeof(pid_t));
+ char *backing_dir;
+
+ backing_dir = create_backing_dir(mount_dir);
+ if (!backing_dir)
+ goto failure;
+
+ /* Mount FS and release the backing file. (10s wait time) */
+ if (mount_fs(mount_dir, backing_dir, 10000) != 0)
+ goto failure;
+
+ cmd_fd = open_commands_file(mount_dir);
+ if (cmd_fd < 0)
+ goto failure;
+
+ /* Tell FS about the files, without actually providing the data. */
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+
+ if (emit_file(cmd_fd, NULL, file->name, &file->id,
+ file->size, NULL) < 0)
+ goto failure;
+ }
+
+ /* Start producer processes */
+ for (i = 0; i < producer_count; i++) {
+ pid_t producer_pid = flush_and_fork();
+
+ if (producer_pid == 0) {
+ int ret;
+ /*
+ * This is a child that should provide data to
+ * pending reads.
+ */
+
+ ret = data_producer(mount_dir, &test);
+ exit(-ret);
+ } else if (producer_pid > 0) {
+ producer_pids[i] = producer_pid;
+ } else {
+ print_error("Fork error");
+ goto failure;
+ }
+ }
+
+ /* Validate FS content */
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+ char *filename = concat_file_name(mount_dir, file->name);
+ loff_t read_result = read_whole_file(filename);
+
+ free(filename);
+ if (read_result != file->size) {
+ ksft_print_msg(
+ "Error validating file %s. Result: %ld\n",
+ file->name, read_result);
+ goto failure;
+ }
+ }
+
+ /* Check that all producers has finished with 0 exit status */
+ for (i = 0; i < producer_count; i++) {
+ status = wait_for_process(producer_pids[i]);
+ if (status != 0) {
+ ksft_print_msg("Producer %d failed with code (%s)\n", i,
+ strerror(status));
+ goto failure;
+ }
+ }
+
+ close(cmd_fd);
+ free(backing_dir);
+ cmd_fd = -1;
+ if (umount(mount_dir) != 0) {
+ print_error("Can't unmout FS");
+ goto failure;
+ }
+
+ return TEST_SUCCESS;
+
+failure:
+ close(cmd_fd);
+ free(backing_dir);
+ umount(mount_dir);
+ return TEST_FAILURE;
+}
+
+static int hash_tree_test(char *mount_dir)
+{
+ char *backing_dir;
+ struct test_files_set test = get_test_files_set();
+ const int file_num = test.files_count;
+ const int corrupted_file_idx = 5;
+ int i = 0;
+ int cmd_fd = -1;
+
+ backing_dir = create_backing_dir(mount_dir);
+ if (!backing_dir)
+ goto failure;
+
+ /* Mount FS and release the backing file. */
+ if (mount_fs(mount_dir, backing_dir, 50) != 0)
+ goto failure;
+
+ cmd_fd = open_commands_file(mount_dir);
+ if (cmd_fd < 0)
+ goto failure;
+
+ /* Write hashes and data. */
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+ int res;
+
+ build_mtree(file);
+ res = crypto_emit_file(cmd_fd, NULL, file->name, &file->id,
+ file->size, file->root_hash,
+ file->sig.add_data);
+
+ if (i == corrupted_file_idx) {
+ /* Corrupt third blocks hash */
+ file->mtree[0].data[2 * SHA256_DIGEST_SIZE] ^= 0xff;
+ }
+ if (emit_test_file_data(mount_dir, file))
+ goto failure;
+
+ res = load_hash_tree(mount_dir, file);
+ if (res) {
+ ksft_print_msg("Can't load hashes for %s. error: %s\n",
+ file->name, strerror(-res));
+ goto failure;
+ }
+ }
+
+ /* Validate data */
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+
+ if (i == corrupted_file_idx) {
+ uint8_t data[INCFS_DATA_FILE_BLOCK_SIZE];
+ char *filename =
+ concat_file_name(mount_dir, file->name);
+ int res;
+
+ res = read_test_file(data, INCFS_DATA_FILE_BLOCK_SIZE,
+ filename, 2);
+ free(filename);
+ if (res != -EBADMSG) {
+ ksft_print_msg("Hash violation missed1. %d\n",
+ res);
+ goto failure;
+ }
+ } else if (validate_test_file_content(mount_dir, file) < 0)
+ goto failure;
+ }
+
+ /* Unmount and mount again, to that hashes are persistent. */
+ close(cmd_fd);
+ cmd_fd = -1;
+ if (umount(mount_dir) != 0) {
+ print_error("Can't unmout FS");
+ goto failure;
+ }
+ if (mount_fs(mount_dir, backing_dir, 50) != 0)
+ goto failure;
+
+ cmd_fd = open_commands_file(mount_dir);
+ if (cmd_fd < 0)
+ goto failure;
+
+ /* Validate data again */
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+
+ if (i == corrupted_file_idx) {
+ uint8_t data[INCFS_DATA_FILE_BLOCK_SIZE];
+ char *filename =
+ concat_file_name(mount_dir, file->name);
+ int res;
+
+ res = read_test_file(data, INCFS_DATA_FILE_BLOCK_SIZE,
+ filename, 2);
+ free(filename);
+ if (res != -EBADMSG) {
+ ksft_print_msg("Hash violation missed2. %d\n",
+ res);
+ goto failure;
+ }
+ } else if (validate_test_file_content(mount_dir, file) < 0)
+ goto failure;
+ }
+
+ /* Final unmount */
+ close(cmd_fd);
+ cmd_fd = -1;
+ if (umount(mount_dir) != 0) {
+ print_error("Can't unmout FS");
+ goto failure;
+ }
+ return TEST_SUCCESS;
+
+failure:
+ close(cmd_fd);
+ free(backing_dir);
+ umount(mount_dir);
+ return TEST_FAILURE;
+}
+
+enum expected_log { FULL_LOG, NO_LOG, PARTIAL_LOG };
+
+static int validate_logs(char *mount_dir, int log_fd, struct test_file *file,
+ enum expected_log expected_log)
+{
+ uint8_t data[INCFS_DATA_FILE_BLOCK_SIZE];
+ struct incfs_pending_read_info prs[2048] = {};
+ int prs_size = ARRAY_SIZE(prs);
+ int block_cnt = 1 + (file->size - 1) / INCFS_DATA_FILE_BLOCK_SIZE;
+ int expected_read_block_cnt;
+ int res;
+ int read_count;
+ int i, j;
+ char *filename = concat_file_name(mount_dir, file->name);
+ int fd;
+
+ fd = open(filename, O_RDONLY | O_CLOEXEC);
+ free(filename);
+ if (fd <= 0)
+ return TEST_FAILURE;
+
+ if (block_cnt > prs_size)
+ block_cnt = prs_size;
+ expected_read_block_cnt = block_cnt;
+
+ for (i = 0; i < block_cnt; i++) {
+ res = pread(fd, data, sizeof(data),
+ INCFS_DATA_FILE_BLOCK_SIZE * i);
+
+ /* Make some read logs of type SAME_FILE_NEXT_BLOCK */
+ if (i % 10 == 0)
+ usleep(20000);
+
+ /* Skip some blocks to make logs of type SAME_FILE */
+ if (i % 10 == 5) {
+ ++i;
+ --expected_read_block_cnt;
+ }
+
+ if (res <= 0)
+ goto failure;
+ }
+
+ read_count = wait_for_pending_reads(
+ log_fd, expected_log == NO_LOG ? 10 : 0, prs, prs_size);
+ if (expected_log == NO_LOG) {
+ if (read_count == 0)
+ goto success;
+ if (read_count < 0)
+ ksft_print_msg("Error reading logged reads %s.\n",
+ strerror(-read_count));
+ else
+ ksft_print_msg("Somehow read empty logs.\n");
+ goto failure;
+ }
+
+ if (read_count < 0) {
+ ksft_print_msg("Error reading logged reads %s.\n",
+ strerror(-read_count));
+ goto failure;
+ }
+
+ i = 0;
+ if (expected_log == PARTIAL_LOG) {
+ if (read_count == 0) {
+ ksft_print_msg("No logs %s.\n", file->name);
+ goto failure;
+ }
+
+ for (i = 0, j = 0; j < expected_read_block_cnt - read_count;
+ i++, j++)
+ if (i % 10 == 5)
+ ++i;
+
+ } else if (read_count != expected_read_block_cnt) {
+ ksft_print_msg("Bad log read count %s %d %d.\n", file->name,
+ read_count, expected_read_block_cnt);
+ goto failure;
+ }
+
+ for (j = 0; j < read_count; i++, j++) {
+ struct incfs_pending_read_info *read = &prs[j];
+
+ if (!same_id(&read->file_id, &file->id)) {
+ ksft_print_msg("Bad log read ino %s\n", file->name);
+ goto failure;
+ }
+
+ if (read->block_index != i) {
+ ksft_print_msg("Bad log read ino %s %d %d.\n",
+ file->name, read->block_index, i);
+ goto failure;
+ }
+
+ if (j != 0) {
+ unsigned long psn = prs[j - 1].serial_number;
+
+ if (read->serial_number != psn + 1) {
+ ksft_print_msg("Bad log read sn %s %d %d.\n",
+ file->name, read->serial_number,
+ psn);
+ goto failure;
+ }
+ }
+
+ if (read->timestamp_us == 0) {
+ ksft_print_msg("Bad log read timestamp %s.\n",
+ file->name);
+ goto failure;
+ }
+
+ if (i % 10 == 5)
+ ++i;
+ }
+
+success:
+ close(fd);
+ return TEST_SUCCESS;
+
+failure:
+ close(fd);
+ return TEST_FAILURE;
+}
+
+static int read_log_test(char *mount_dir)
+{
+ struct test_files_set test = get_test_files_set();
+ const int file_num = test.files_count;
+ int i = 0;
+ int cmd_fd = -1, log_fd = -1, drop_caches = -1;
+ char *backing_dir;
+
+ backing_dir = create_backing_dir(mount_dir);
+ if (!backing_dir)
+ goto failure;
+
+ if (mount_fs_opt(mount_dir, backing_dir, "readahead=0", false) != 0)
+ goto failure;
+
+ cmd_fd = open_commands_file(mount_dir);
+ if (cmd_fd < 0)
+ goto failure;
+
+ log_fd = open_log_file(mount_dir);
+ if (log_fd < 0)
+ ksft_print_msg("Can't open log file.\n");
+
+ /* Write data. */
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+
+ if (emit_file(cmd_fd, NULL, file->name, &file->id,
+ file->size, NULL))
+ goto failure;
+
+ if (emit_test_file_data(mount_dir, file))
+ goto failure;
+ }
+
+ /* Validate data */
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+
+ if (validate_logs(mount_dir, log_fd, file, FULL_LOG))
+ goto failure;
+ }
+
+ /* Unmount and mount again, to see that logs work after remount. */
+ close(cmd_fd);
+ close(log_fd);
+ cmd_fd = -1;
+ if (umount(mount_dir) != 0) {
+ print_error("Can't unmout FS");
+ goto failure;
+ }
+
+ if (mount_fs_opt(mount_dir, backing_dir, "readahead=0", false) != 0)
+ goto failure;
+
+ cmd_fd = open_commands_file(mount_dir);
+ if (cmd_fd < 0)
+ goto failure;
+
+ log_fd = open_log_file(mount_dir);
+ if (log_fd < 0)
+ ksft_print_msg("Can't open log file.\n");
+
+ /* Validate data again */
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+
+ if (validate_logs(mount_dir, log_fd, file, FULL_LOG))
+ goto failure;
+ }
+
+ /*
+ * Unmount and mount again with no read log to make sure poll
+ * doesn't crash
+ */
+ close(cmd_fd);
+ close(log_fd);
+ if (umount(mount_dir) != 0) {
+ print_error("Can't unmout FS");
+ goto failure;
+ }
+
+ if (mount_fs_opt(mount_dir, backing_dir, "readahead=0,rlog_pages=0",
+ false) != 0)
+ goto failure;
+
+ log_fd = open_log_file(mount_dir);
+ if (log_fd < 0)
+ ksft_print_msg("Can't open log file.\n");
+
+ /* Validate data again - note should fail this time */
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+
+ if (validate_logs(mount_dir, log_fd, file, NO_LOG))
+ goto failure;
+ }
+
+ /*
+ * Remount and check that logs start working again
+ */
+ drop_caches = open("/proc/sys/vm/drop_caches", O_WRONLY | O_CLOEXEC);
+ if (drop_caches == -1)
+ goto failure;
+ i = write(drop_caches, "3", 1);
+ close(drop_caches);
+ if (i != 1)
+ goto failure;
+
+ if (mount_fs_opt(mount_dir, backing_dir, "readahead=0,rlog_pages=1",
+ true) != 0)
+ goto failure;
+
+ /* Validate data again */
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+
+ if (validate_logs(mount_dir, log_fd, file, PARTIAL_LOG))
+ goto failure;
+ }
+
+ /*
+ * Remount and check that logs start working again
+ */
+ drop_caches = open("/proc/sys/vm/drop_caches", O_WRONLY | O_CLOEXEC);
+ if (drop_caches == -1)
+ goto failure;
+ i = write(drop_caches, "3", 1);
+ close(drop_caches);
+ if (i != 1)
+ goto failure;
+
+ if (mount_fs_opt(mount_dir, backing_dir, "readahead=0,rlog_pages=4",
+ true) != 0)
+ goto failure;
+
+ /* Validate data again */
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+
+ if (validate_logs(mount_dir, log_fd, file, FULL_LOG))
+ goto failure;
+ }
+
+ /* Final unmount */
+ close(log_fd);
+ free(backing_dir);
+ if (umount(mount_dir) != 0) {
+ print_error("Can't unmout FS");
+ goto failure;
+ }
+
+ return TEST_SUCCESS;
+
+failure:
+ close(cmd_fd);
+ close(log_fd);
+ free(backing_dir);
+ umount(mount_dir);
+ return TEST_FAILURE;
+}
+
+static int emit_partial_test_file_data(char *mount_dir, struct test_file *file)
+{
+ int i, j;
+ int block_cnt = 1 + (file->size - 1) / INCFS_DATA_FILE_BLOCK_SIZE;
+ int *block_indexes = NULL;
+ int result = 0;
+ int blocks_written = 0;
+
+ if (file->size == 0)
+ return 0;
+
+ /* Emit 2 blocks, skip 2 blocks etc*/
+ block_indexes = calloc(block_cnt, sizeof(*block_indexes));
+ for (i = 0, j = 0; i < block_cnt; ++i)
+ if ((i & 2) == 0) {
+ block_indexes[j] = i;
+ ++j;
+ }
+
+ for (i = 0; i < j; i += blocks_written) {
+ blocks_written = emit_test_blocks(mount_dir, file,
+ block_indexes + i, j - i);
+ if (blocks_written < 0) {
+ result = blocks_written;
+ goto out;
+ }
+ if (blocks_written == 0) {
+ result = -EIO;
+ goto out;
+ }
+ }
+out:
+ free(block_indexes);
+ return result;
+}
+
+static int validate_ranges(const char *mount_dir, struct test_file *file)
+{
+ int block_cnt = 1 + (file->size - 1) / INCFS_DATA_FILE_BLOCK_SIZE;
+ char *filename = concat_file_name(mount_dir, file->name);
+ int fd;
+ struct incfs_filled_range ranges[128];
+ struct incfs_get_filled_blocks_args fba = {
+ .range_buffer = ptr_to_u64(ranges),
+ .range_buffer_size = sizeof(ranges),
+ };
+ int error = TEST_SUCCESS;
+ int i;
+ int range_cnt;
+ int cmd_fd = -1;
+ struct incfs_permit_fill permit_fill;
+
+ fd = open(filename, O_RDONLY | O_CLOEXEC);
+ free(filename);
+ if (fd <= 0)
+ return TEST_FAILURE;
+
+ error = ioctl(fd, INCFS_IOC_GET_FILLED_BLOCKS, &fba);
+ if (error != -1 || errno != EPERM) {
+ ksft_print_msg("INCFS_IOC_GET_FILLED_BLOCKS not blocked\n");
+ error = -EPERM;
+ goto out;
+ }
+
+ cmd_fd = open_commands_file(mount_dir);
+ permit_fill.file_descriptor = fd;
+ if (ioctl(cmd_fd, INCFS_IOC_PERMIT_FILL, &permit_fill)) {
+ print_error("INCFS_IOC_PERMIT_FILL failed");
+ return -EPERM;
+ goto out;
+ }
+
+ error = ioctl(fd, INCFS_IOC_GET_FILLED_BLOCKS, &fba);
+ if (error && errno != ERANGE)
+ goto out;
+
+ if (error && errno == ERANGE && block_cnt < 509)
+ goto out;
+
+ if (!error && block_cnt >= 509) {
+ error = -ERANGE;
+ goto out;
+ }
+
+ if (fba.total_blocks_out != block_cnt) {
+ error = -EINVAL;
+ goto out;
+ }
+
+ if (fba.data_blocks_out != block_cnt) {
+ error = -EINVAL;
+ goto out;
+ }
+
+ range_cnt = (block_cnt + 3) / 4;
+ if (range_cnt > 128)
+ range_cnt = 128;
+ if (range_cnt != fba.range_buffer_size_out / sizeof(*ranges)) {
+ error = -ERANGE;
+ goto out;
+ }
+
+ error = TEST_SUCCESS;
+ for (i = 0; i < fba.range_buffer_size_out / sizeof(*ranges) - 1; ++i)
+ if (ranges[i].begin != i * 4 || ranges[i].end != i * 4 + 2) {
+ error = -EINVAL;
+ goto out;
+ }
+
+ if (ranges[i].begin != i * 4 ||
+ (ranges[i].end != i * 4 + 1 && ranges[i].end != i * 4 + 2)) {
+ error = -EINVAL;
+ goto out;
+ }
+
+ for (i = 0; i < 64; ++i) {
+ fba.start_index = i * 2;
+ fba.end_index = i * 2 + 2;
+ error = ioctl(fd, INCFS_IOC_GET_FILLED_BLOCKS, &fba);
+ if (error)
+ goto out;
+
+ if (fba.total_blocks_out != block_cnt) {
+ error = -EINVAL;
+ goto out;
+ }
+
+ if (fba.start_index >= block_cnt) {
+ if (fba.index_out != fba.start_index) {
+ error = -EINVAL;
+ goto out;
+ }
+
+ break;
+ }
+
+ if (i % 2) {
+ if (fba.range_buffer_size_out != 0) {
+ error = -EINVAL;
+ goto out;
+ }
+ } else {
+ if (fba.range_buffer_size_out != sizeof(*ranges)) {
+ error = -EINVAL;
+ goto out;
+ }
+
+ if (ranges[0].begin != i * 2) {
+ error = -EINVAL;
+ goto out;
+ }
+
+ if (ranges[0].end != i * 2 + 1 &&
+ ranges[0].end != i * 2 + 2) {
+ error = -EINVAL;
+ goto out;
+ }
+ }
+ }
+
+out:
+ close(fd);
+ close(cmd_fd);
+ return error;
+}
+
+static int get_blocks_test(char *mount_dir)
+{
+ char *backing_dir;
+ int cmd_fd = -1;
+ int i;
+ struct test_files_set test = get_test_files_set();
+ const int file_num = test.files_count;
+
+ backing_dir = create_backing_dir(mount_dir);
+ if (!backing_dir)
+ goto failure;
+
+ if (mount_fs_opt(mount_dir, backing_dir, "readahead=0", false) != 0)
+ goto failure;
+
+ cmd_fd = open_commands_file(mount_dir);
+ if (cmd_fd < 0)
+ goto failure;
+
+ /* Write data. */
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+
+ if (emit_file(cmd_fd, NULL, file->name, &file->id, file->size,
+ NULL))
+ goto failure;
+
+ if (emit_partial_test_file_data(mount_dir, file))
+ goto failure;
+ }
+
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+
+ if (validate_ranges(mount_dir, file))
+ goto failure;
+
+ /*
+ * The smallest files are filled completely, so this checks that
+ * the fast get_filled_blocks path is not causing issues
+ */
+ if (validate_ranges(mount_dir, file))
+ goto failure;
+ }
+
+ close(cmd_fd);
+ umount(mount_dir);
+ free(backing_dir);
+ return TEST_SUCCESS;
+
+failure:
+ close(cmd_fd);
+ umount(mount_dir);
+ free(backing_dir);
+ return TEST_FAILURE;
+}
+
+static int emit_partial_test_file_hash(char *mount_dir, struct test_file *file)
+{
+ int err;
+ int fd;
+ struct incfs_fill_blocks fill_blocks = {
+ .count = 1,
+ };
+ struct incfs_fill_block *fill_block_array =
+ calloc(fill_blocks.count, sizeof(struct incfs_fill_block));
+ uint8_t data[INCFS_DATA_FILE_BLOCK_SIZE];
+
+ if (file->size <= 4096 / 32 * 4096)
+ return 0;
+
+ if (fill_blocks.count == 0)
+ return 0;
+
+ if (!fill_block_array)
+ return -ENOMEM;
+ fill_blocks.fill_blocks = ptr_to_u64(fill_block_array);
+
+ rnd_buf(data, sizeof(data), 0);
+
+ fill_block_array[0] =
+ (struct incfs_fill_block){ .block_index = 1,
+ .data_len =
+ INCFS_DATA_FILE_BLOCK_SIZE,
+ .data = ptr_to_u64(data),
+ .flags = INCFS_BLOCK_FLAGS_HASH };
+
+ fd = open_file_by_id(mount_dir, file->id, true);
+ if (fd < 0) {
+ err = errno;
+ goto failure;
+ }
+
+ err = ioctl(fd, INCFS_IOC_FILL_BLOCKS, &fill_blocks);
+ close(fd);
+ if (err < fill_blocks.count)
+ err = errno;
+ else
+ err = 0;
+
+failure:
+ free(fill_block_array);
+ return err;
+}
+
+static int validate_hash_ranges(const char *mount_dir, struct test_file *file)
+{
+ int block_cnt = 1 + (file->size - 1) / INCFS_DATA_FILE_BLOCK_SIZE;
+ char *filename = concat_file_name(mount_dir, file->name);
+ int fd;
+ struct incfs_filled_range ranges[128];
+ struct incfs_get_filled_blocks_args fba = {
+ .range_buffer = ptr_to_u64(ranges),
+ .range_buffer_size = sizeof(ranges),
+ };
+ int error = TEST_SUCCESS;
+ int file_blocks = (file->size + INCFS_DATA_FILE_BLOCK_SIZE - 1) /
+ INCFS_DATA_FILE_BLOCK_SIZE;
+ int cmd_fd = -1;
+ struct incfs_permit_fill permit_fill;
+
+ if (file->size <= 4096 / 32 * 4096)
+ return 0;
+
+ fd = open(filename, O_RDONLY | O_CLOEXEC);
+ free(filename);
+ if (fd <= 0)
+ return TEST_FAILURE;
+
+ error = ioctl(fd, INCFS_IOC_GET_FILLED_BLOCKS, &fba);
+ if (error != -1 || errno != EPERM) {
+ ksft_print_msg("INCFS_IOC_GET_FILLED_BLOCKS not blocked\n");
+ error = -EPERM;
+ goto out;
+ }
+
+ cmd_fd = open_commands_file(mount_dir);
+ permit_fill.file_descriptor = fd;
+ if (ioctl(cmd_fd, INCFS_IOC_PERMIT_FILL, &permit_fill)) {
+ print_error("INCFS_IOC_PERMIT_FILL failed");
+ return -EPERM;
+ goto out;
+ }
+
+ error = ioctl(fd, INCFS_IOC_GET_FILLED_BLOCKS, &fba);
+ if (error)
+ goto out;
+
+ if (fba.total_blocks_out <= block_cnt) {
+ error = -EINVAL;
+ goto out;
+ }
+
+ if (fba.data_blocks_out != block_cnt) {
+ error = -EINVAL;
+ goto out;
+ }
+
+ if (fba.range_buffer_size_out != sizeof(struct incfs_filled_range)) {
+ error = -EINVAL;
+ goto out;
+ }
+
+ if (ranges[0].begin != file_blocks + 1 ||
+ ranges[0].end != file_blocks + 2) {
+ error = -EINVAL;
+ goto out;
+ }
+
+out:
+ close(cmd_fd);
+ close(fd);
+ return error;
+}
+
+static int get_hash_blocks_test(char *mount_dir)
+{
+ char *backing_dir;
+ int cmd_fd = -1;
+ int i;
+ struct test_files_set test = get_test_files_set();
+ const int file_num = test.files_count;
+
+ backing_dir = create_backing_dir(mount_dir);
+ if (!backing_dir)
+ goto failure;
+
+ if (mount_fs_opt(mount_dir, backing_dir, "readahead=0", false) != 0)
+ goto failure;
+
+ cmd_fd = open_commands_file(mount_dir);
+ if (cmd_fd < 0)
+ goto failure;
+
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+
+ if (crypto_emit_file(cmd_fd, NULL, file->name, &file->id,
+ file->size, file->root_hash,
+ file->sig.add_data))
+ goto failure;
+
+ if (emit_partial_test_file_hash(mount_dir, file))
+ goto failure;
+ }
+
+ for (i = 0; i < file_num; i++) {
+ struct test_file *file = &test.files[i];
+
+ if (validate_hash_ranges(mount_dir, file))
+ goto failure;
+ }
+
+ close(cmd_fd);
+ umount(mount_dir);
+ free(backing_dir);
+ return TEST_SUCCESS;
+
+failure:
+ close(cmd_fd);
+ umount(mount_dir);
+ free(backing_dir);
+ return TEST_FAILURE;
+}
+
+static int large_file(char *mount_dir)
+{
+ char *backing_dir;
+ int cmd_fd = -1;
+ int i;
+ int result = TEST_FAILURE;
+ uint8_t data[INCFS_DATA_FILE_BLOCK_SIZE] = {};
+ int block_count = 3LL * 1024 * 1024 * 1024 / INCFS_DATA_FILE_BLOCK_SIZE;
+ struct incfs_fill_block *block_buf =
+ calloc(block_count, sizeof(struct incfs_fill_block));
+ struct incfs_fill_blocks fill_blocks = {
+ .count = block_count,
+ .fill_blocks = ptr_to_u64(block_buf),
+ };
+ incfs_uuid_t id;
+ int fd;
+
+ backing_dir = create_backing_dir(mount_dir);
+ if (!backing_dir)
+ goto failure;
+
+ if (mount_fs_opt(mount_dir, backing_dir, "readahead=0", false) != 0)
+ goto failure;
+
+ cmd_fd = open_commands_file(mount_dir);
+ if (cmd_fd < 0)
+ goto failure;
+
+ if (emit_file(cmd_fd, NULL, "very_large_file", &id,
+ (uint64_t)block_count * INCFS_DATA_FILE_BLOCK_SIZE,
+ NULL) < 0)
+ goto failure;
+
+ for (i = 0; i < block_count; i++) {
+ block_buf[i].compression = COMPRESSION_NONE;
+ block_buf[i].block_index = i;
+ block_buf[i].data_len = INCFS_DATA_FILE_BLOCK_SIZE;
+ block_buf[i].data = ptr_to_u64(data);
+ }
+
+ fd = open_file_by_id(mount_dir, id, true);
+ if (fd < 0)
+ goto failure;
+
+ if (ioctl(fd, INCFS_IOC_FILL_BLOCKS, &fill_blocks) != block_count)
+ goto failure;
+
+ if (emit_file(cmd_fd, NULL, "very_very_large_file", &id, 1LL << 40,
+ NULL) < 0)
+ goto failure;
+
+ result = TEST_SUCCESS;
+
+failure:
+ close(fd);
+ close(cmd_fd);
+ return result;
+}
+
+static char *setup_mount_dir()
+{
+ struct stat st;
+ char *current_dir = getcwd(NULL, 0);
+ char *mount_dir = concat_file_name(current_dir, "incfs-mount-dir");
+
+ free(current_dir);
+ if (stat(mount_dir, &st) == 0) {
+ if (S_ISDIR(st.st_mode))
+ return mount_dir;
+
+ ksft_print_msg("%s is a file, not a dir.\n", mount_dir);
+ return NULL;
+ }
+
+ if (mkdir(mount_dir, 0777)) {
+ print_error("Can't create mount dir.");
+ return NULL;
+ }
+
+ return mount_dir;
+}
+
+int main(int argc, char *argv[])
+{
+ char *mount_dir = NULL;
+ int fails = 0;
+ int i;
+ int fd, count;
+
+ // Seed randomness pool for testing on QEMU
+ // NOTE - this abuses the concept of randomness - do *not* ever do this
+ // on a machine for production use - the device will think it has good
+ // randomness when it does not.
+ fd = open("/dev/urandom", O_WRONLY | O_CLOEXEC);
+ count = 4096;
+ for (int i = 0; i < 128; ++i)
+ ioctl(fd, RNDADDTOENTCNT, &count);
+ close(fd);
+
+ ksft_print_header();
+
+ if (geteuid() != 0)
+ ksft_print_msg("Not a root, might fail to mount.\n");
+
+ mount_dir = setup_mount_dir();
+ if (mount_dir == NULL)
+ ksft_exit_fail_msg("Can't create a mount dir\n");
+
+#define MAKE_TEST(test) \
+ { \
+ test, #test \
+ }
+ struct {
+ int (*pfunc)(char *dir);
+ const char *name;
+ } cases[] = {
+ MAKE_TEST(basic_file_ops_test),
+ MAKE_TEST(cant_touch_index_test),
+ MAKE_TEST(dynamic_files_and_data_test),
+ MAKE_TEST(concurrent_reads_and_writes_test),
+ MAKE_TEST(attribute_test),
+ MAKE_TEST(work_after_remount_test),
+ MAKE_TEST(child_procs_waiting_for_data_test),
+ MAKE_TEST(multiple_providers_test),
+ MAKE_TEST(hash_tree_test),
+ MAKE_TEST(read_log_test),
+ MAKE_TEST(get_blocks_test),
+ MAKE_TEST(get_hash_blocks_test),
+ MAKE_TEST(large_file),
+ };
+#undef MAKE_TEST
+
+ /* Bring back for kernel 5.x */
+ /* ksft_set_plan(ARRAY_SIZE(cases)); */
+
+ for (i = 0; i < ARRAY_SIZE(cases); ++i) {
+ ksft_print_msg("Running %s\n", cases[i].name);
+ if (cases[i].pfunc(mount_dir) == TEST_SUCCESS)
+ ksft_test_result_pass("%s\n", cases[i].name);
+ else {
+ ksft_test_result_fail("%s\n", cases[i].name);
+ fails++;
+ }
+ }
+
+ umount2(mount_dir, MNT_FORCE);
+ rmdir(mount_dir);
+
+ if (fails > 0)
+ ksft_exit_fail();
+ else
+ ksft_exit_pass();
+ return 0;
+}
diff --git a/tools/testing/selftests/filesystems/incfs/utils.c b/tools/testing/selftests/filesystems/incfs/utils.c
new file mode 100644
index 0000000..e194f63
--- /dev/null
+++ b/tools/testing/selftests/filesystems/incfs/utils.c
@@ -0,0 +1,297 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2018 Google LLC
+ */
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <sys/ioctl.h>
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include <openssl/sha.h>
+#include <openssl/md5.h>
+
+#include "utils.h"
+
+#ifndef __S_IFREG
+#define __S_IFREG S_IFREG
+#endif
+
+int mount_fs(const char *mount_dir, const char *backing_dir,
+ int read_timeout_ms)
+{
+ static const char fs_name[] = INCFS_NAME;
+ char mount_options[512];
+ int result;
+
+ snprintf(mount_options, ARRAY_SIZE(mount_options),
+ "read_timeout_ms=%u",
+ read_timeout_ms);
+
+ result = mount(backing_dir, mount_dir, fs_name, 0, mount_options);
+ if (result != 0)
+ perror("Error mounting fs.");
+ return result;
+}
+
+int mount_fs_opt(const char *mount_dir, const char *backing_dir,
+ const char *opt, bool remount)
+{
+ static const char fs_name[] = INCFS_NAME;
+ int result;
+
+ result = mount(backing_dir, mount_dir, fs_name,
+ remount ? MS_REMOUNT : 0, opt);
+ if (result != 0)
+ perror("Error mounting fs.");
+ return result;
+}
+
+struct hash_section {
+ uint32_t algorithm;
+ uint8_t log2_blocksize;
+ uint32_t salt_size;
+ /* no salt */
+ uint32_t hash_size;
+ uint8_t hash[SHA256_DIGEST_SIZE];
+} __packed;
+
+struct signature_blob {
+ uint32_t version;
+ uint32_t hash_section_size;
+ struct hash_section hash_section;
+ uint32_t signing_section_size;
+ uint8_t signing_section[];
+} __packed;
+
+size_t format_signature(void **buf, const char *root_hash, const char *add_data)
+{
+ size_t size = sizeof(struct signature_blob) + strlen(add_data) + 1;
+ struct signature_blob *sb = malloc(size);
+
+ *sb = (struct signature_blob){
+ .version = INCFS_SIGNATURE_VERSION,
+ .hash_section_size = sizeof(struct hash_section),
+ .hash_section =
+ (struct hash_section){
+ .algorithm = INCFS_HASH_TREE_SHA256,
+ .log2_blocksize = 12,
+ .salt_size = 0,
+ .hash_size = SHA256_DIGEST_SIZE,
+ },
+ .signing_section_size = sizeof(uint32_t) + strlen(add_data) + 1,
+ };
+
+ memcpy(sb->hash_section.hash, root_hash, SHA256_DIGEST_SIZE);
+ memcpy((char *)sb->signing_section, add_data, strlen(add_data) + 1);
+ *buf = sb;
+ return size;
+}
+
+int crypto_emit_file(int fd, const char *dir, const char *filename,
+ incfs_uuid_t *id_out, size_t size, const char *root_hash,
+ const char *add_data)
+{
+ int mode = __S_IFREG | 0555;
+ void *signature;
+ int error = 0;
+
+ struct incfs_new_file_args args = {
+ .size = size,
+ .mode = mode,
+ .file_name = ptr_to_u64(filename),
+ .directory_path = ptr_to_u64(dir),
+ .file_attr = 0,
+ .file_attr_len = 0
+ };
+
+ args.signature_size = format_signature(&signature, root_hash, add_data);
+ args.signature_info = ptr_to_u64(signature);
+
+ md5(filename, strlen(filename), (char *)args.file_id.bytes);
+
+ if (ioctl(fd, INCFS_IOC_CREATE_FILE, &args) != 0) {
+ error = -errno;
+ goto out;
+ }
+
+ *id_out = args.file_id;
+
+out:
+ free(signature);
+ return error;
+}
+
+int emit_file(int fd, const char *dir, const char *filename,
+ incfs_uuid_t *id_out, size_t size, const char *attr)
+{
+ int mode = __S_IFREG | 0555;
+ struct incfs_new_file_args args = { .size = size,
+ .mode = mode,
+ .file_name = ptr_to_u64(filename),
+ .directory_path = ptr_to_u64(dir),
+ .signature_info = ptr_to_u64(NULL),
+ .signature_size = 0,
+ .file_attr = ptr_to_u64(attr),
+ .file_attr_len =
+ attr ? strlen(attr) : 0 };
+
+ md5(filename, strlen(filename), (char *)args.file_id.bytes);
+
+ if (ioctl(fd, INCFS_IOC_CREATE_FILE, &args) != 0)
+ return -errno;
+
+ *id_out = args.file_id;
+ return 0;
+}
+
+int get_file_bmap(int cmd_fd, int ino, unsigned char *buf, int buf_size)
+{
+ return 0;
+}
+
+int get_file_signature(int fd, unsigned char *buf, int buf_size)
+{
+ struct incfs_get_file_sig_args args = {
+ .file_signature = ptr_to_u64(buf),
+ .file_signature_buf_size = buf_size
+ };
+
+ if (ioctl(fd, INCFS_IOC_READ_FILE_SIGNATURE, &args) == 0)
+ return args.file_signature_len_out;
+ return -errno;
+}
+
+loff_t get_file_size(const char *name)
+{
+ struct stat st;
+
+ if (stat(name, &st) == 0)
+ return st.st_size;
+ return -ENOENT;
+}
+
+int open_commands_file(const char *mount_dir)
+{
+ char cmd_file[255];
+ int cmd_fd;
+
+ snprintf(cmd_file, ARRAY_SIZE(cmd_file),
+ "%s/%s", mount_dir, INCFS_PENDING_READS_FILENAME);
+ cmd_fd = open(cmd_file, O_RDONLY | O_CLOEXEC);
+
+ if (cmd_fd < 0)
+ perror("Can't open commands file");
+ return cmd_fd;
+}
+
+int open_log_file(const char *mount_dir)
+{
+ char cmd_file[255];
+ int cmd_fd;
+
+ snprintf(cmd_file, ARRAY_SIZE(cmd_file), "%s/.log", mount_dir);
+ cmd_fd = open(cmd_file, O_RDWR | O_CLOEXEC);
+ if (cmd_fd < 0)
+ perror("Can't open log file");
+ return cmd_fd;
+}
+
+int wait_for_pending_reads(int fd, int timeout_ms,
+ struct incfs_pending_read_info *prs, int prs_count)
+{
+ ssize_t read_res = 0;
+
+ if (timeout_ms > 0) {
+ int poll_res = 0;
+ struct pollfd pollfd = {
+ .fd = fd,
+ .events = POLLIN
+ };
+
+ poll_res = poll(&pollfd, 1, timeout_ms);
+ if (poll_res < 0)
+ return -errno;
+ if (poll_res == 0)
+ return 0;
+ if (!(pollfd.revents | POLLIN))
+ return 0;
+ }
+
+ read_res = read(fd, prs, prs_count * sizeof(*prs));
+ if (read_res < 0)
+ return -errno;
+
+ return read_res / sizeof(*prs);
+}
+
+char *concat_file_name(const char *dir, char *file)
+{
+ char full_name[FILENAME_MAX] = "";
+
+ if (snprintf(full_name, ARRAY_SIZE(full_name), "%s/%s", dir, file) < 0)
+ return NULL;
+ return strdup(full_name);
+}
+
+int delete_dir_tree(const char *dir_path)
+{
+ DIR *dir = NULL;
+ struct dirent *dp;
+ int result = 0;
+
+ dir = opendir(dir_path);
+ if (!dir) {
+ result = -errno;
+ goto out;
+ }
+
+ while ((dp = readdir(dir))) {
+ char *full_path;
+
+ if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
+ continue;
+
+ full_path = concat_file_name(dir_path, dp->d_name);
+ if (dp->d_type == DT_DIR)
+ result = delete_dir_tree(full_path);
+ else
+ result = unlink(full_path);
+ free(full_path);
+ if (result)
+ goto out;
+ }
+
+out:
+ if (dir)
+ closedir(dir);
+ if (!result)
+ rmdir(dir_path);
+ return result;
+}
+
+void sha256(const char *data, size_t dsize, char *hash)
+{
+ SHA256_CTX ctx;
+
+ SHA256_Init(&ctx);
+ SHA256_Update(&ctx, data, dsize);
+ SHA256_Final((unsigned char *)hash, &ctx);
+}
+
+void md5(const char *data, size_t dsize, char *hash)
+{
+ MD5_CTX ctx;
+
+ MD5_Init(&ctx);
+ MD5_Update(&ctx, data, dsize);
+ MD5_Final((unsigned char *)hash, &ctx);
+}
diff --git a/tools/testing/selftests/filesystems/incfs/utils.h b/tools/testing/selftests/filesystems/incfs/utils.h
new file mode 100644
index 0000000..9af63e4
--- /dev/null
+++ b/tools/testing/selftests/filesystems/incfs/utils.h
@@ -0,0 +1,57 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2019 Google LLC
+ */
+#include <stdbool.h>
+#include <sys/stat.h>
+
+#include <include/uapi/linux/incrementalfs.h>
+
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof(arr[0]))
+
+#define __packed __attribute__((__packed__))
+
+#ifdef __LP64__
+#define ptr_to_u64(p) ((__u64)p)
+#else
+#define ptr_to_u64(p) ((__u64)(__u32)p)
+#endif
+
+#define SHA256_DIGEST_SIZE 32
+
+int mount_fs(const char *mount_dir, const char *backing_dir,
+ int read_timeout_ms);
+
+int mount_fs_opt(const char *mount_dir, const char *backing_dir,
+ const char *opt, bool remount);
+
+int get_file_bmap(int cmd_fd, int ino, unsigned char *buf, int buf_size);
+
+int get_file_signature(int fd, unsigned char *buf, int buf_size);
+
+int emit_node(int fd, char *filename, int *ino_out, int parent_ino,
+ size_t size, mode_t mode, char *attr);
+
+int emit_file(int fd, const char *dir, const char *filename,
+ incfs_uuid_t *id_out, size_t size, const char *attr);
+
+int crypto_emit_file(int fd, const char *dir, const char *filename,
+ incfs_uuid_t *id_out, size_t size, const char *root_hash,
+ const char *add_data);
+
+loff_t get_file_size(const char *name);
+
+int open_commands_file(const char *mount_dir);
+
+int open_log_file(const char *mount_dir);
+
+int wait_for_pending_reads(int fd, int timeout_ms,
+ struct incfs_pending_read_info *prs, int prs_count);
+
+char *concat_file_name(const char *dir, char *file);
+
+void sha256(const char *data, size_t dsize, char *hash);
+
+void md5(const char *data, size_t dsize, char *hash);
+
+int delete_dir_tree(const char *path);
diff --git a/tools/testing/selftests/memfd/memfd_test.c b/tools/testing/selftests/memfd/memfd_test.c
index 10baa16..c67d32e 100644
--- a/tools/testing/selftests/memfd/memfd_test.c
+++ b/tools/testing/selftests/memfd/memfd_test.c
@@ -54,6 +54,22 @@ static int mfd_assert_new(const char *name, loff_t sz, unsigned int flags)
return fd;
}
+static int mfd_assert_reopen_fd(int fd_in)
+{
+ int r, fd;
+ char path[100];
+
+ sprintf(path, "/proc/self/fd/%d", fd_in);
+
+ fd = open(path, O_RDWR);
+ if (fd < 0) {
+ printf("re-open of existing fd %d failed\n", fd_in);
+ abort();
+ }
+
+ return fd;
+}
+
static void mfd_fail_new(const char *name, unsigned int flags)
{
int r;
@@ -255,6 +271,25 @@ static void mfd_assert_read(int fd)
munmap(p, mfd_def_size);
}
+/* Test that PROT_READ + MAP_SHARED mappings work. */
+static void mfd_assert_read_shared(int fd)
+{
+ void *p;
+
+ /* verify PROT_READ and MAP_SHARED *is* allowed */
+ p = mmap(NULL,
+ mfd_def_size,
+ PROT_READ,
+ MAP_SHARED,
+ fd,
+ 0);
+ if (p == MAP_FAILED) {
+ printf("mmap() failed: %m\n");
+ abort();
+ }
+ munmap(p, mfd_def_size);
+}
+
static void mfd_assert_write(int fd)
{
ssize_t l;
@@ -693,6 +728,44 @@ static void test_seal_write(void)
}
/*
+ * Test SEAL_FUTURE_WRITE
+ * Test whether SEAL_FUTURE_WRITE actually prevents modifications.
+ */
+static void test_seal_future_write(void)
+{
+ int fd, fd2;
+ void *p;
+
+ printf("%s SEAL-FUTURE-WRITE\n", memfd_str);
+
+ fd = mfd_assert_new("kern_memfd_seal_future_write",
+ mfd_def_size,
+ MFD_CLOEXEC | MFD_ALLOW_SEALING);
+
+ p = mfd_assert_mmap_shared(fd);
+
+ mfd_assert_has_seals(fd, 0);
+
+ mfd_assert_add_seals(fd, F_SEAL_FUTURE_WRITE);
+ mfd_assert_has_seals(fd, F_SEAL_FUTURE_WRITE);
+
+ /* read should pass, writes should fail */
+ mfd_assert_read(fd);
+ mfd_assert_read_shared(fd);
+ mfd_fail_write(fd);
+
+ fd2 = mfd_assert_reopen_fd(fd);
+ /* read should pass, writes should still fail */
+ mfd_assert_read(fd2);
+ mfd_assert_read_shared(fd2);
+ mfd_fail_write(fd2);
+
+ munmap(p, mfd_def_size);
+ close(fd2);
+ close(fd);
+}
+
+/*
* Test SEAL_SHRINK
* Test whether SEAL_SHRINK actually prevents shrinking
*/
@@ -945,6 +1018,7 @@ int main(int argc, char **argv)
test_basic();
test_seal_write();
+ test_seal_future_write();
test_seal_shrink();
test_seal_grow();
test_seal_resize();
diff --git a/tools/testing/selftests/wireguard/netns.sh b/tools/testing/selftests/wireguard/netns.sh
new file mode 100755
index 0000000..d77f482
--- /dev/null
+++ b/tools/testing/selftests/wireguard/netns.sh
@@ -0,0 +1,614 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+#
+# This script tests the below topology:
+#
+# ┌─────────────────────┐ ┌──────────────────────────────────┐ ┌─────────────────────┐
+# │ $ns1 namespace │ │ $ns0 namespace │ │ $ns2 namespace │
+# │ │ │ │ │ │
+# │┌────────┐ │ │ ┌────────┐ │ │ ┌────────┐│
+# ││ wg0 │───────────┼───┼────────────│ lo │────────────┼───┼───────────│ wg0 ││
+# │├────────┴──────────┐│ │ ┌───────┴────────┴────────┐ │ │┌──────────┴────────┤│
+# ││192.168.241.1/24 ││ │ │(ns1) (ns2) │ │ ││192.168.241.2/24 ││
+# ││fd00::1/24 ││ │ │127.0.0.1:1 127.0.0.1:2│ │ ││fd00::2/24 ││
+# │└───────────────────┘│ │ │[::]:1 [::]:2 │ │ │└───────────────────┘│
+# └─────────────────────┘ │ └─────────────────────────┘ │ └─────────────────────┘
+# └──────────────────────────────────┘
+#
+# After the topology is prepared we run a series of TCP/UDP iperf3 tests between the
+# wireguard peers in $ns1 and $ns2. Note that $ns0 is the endpoint for the wg0
+# interfaces in $ns1 and $ns2. See https://www.wireguard.com/netns/ for further
+# details on how this is accomplished.
+set -e
+
+exec 3>&1
+export LANG=C
+export WG_HIDE_KEYS=never
+netns0="wg-test-$$-0"
+netns1="wg-test-$$-1"
+netns2="wg-test-$$-2"
+pretty() { echo -e "\x1b[32m\x1b[1m[+] ${1:+NS$1: }${2}\x1b[0m" >&3; }
+pp() { pretty "" "$*"; "$@"; }
+maybe_exec() { if [[ $BASHPID -eq $$ ]]; then "$@"; else exec "$@"; fi; }
+n0() { pretty 0 "$*"; maybe_exec ip netns exec $netns0 "$@"; }
+n1() { pretty 1 "$*"; maybe_exec ip netns exec $netns1 "$@"; }
+n2() { pretty 2 "$*"; maybe_exec ip netns exec $netns2 "$@"; }
+ip0() { pretty 0 "ip $*"; ip -n $netns0 "$@"; }
+ip1() { pretty 1 "ip $*"; ip -n $netns1 "$@"; }
+ip2() { pretty 2 "ip $*"; ip -n $netns2 "$@"; }
+sleep() { read -t "$1" -N 1 || true; }
+waitiperf() { pretty "${1//*-}" "wait for iperf:5201 pid $2"; while [[ $(ss -N "$1" -tlpH 'sport = 5201') != *\"iperf3\",pid=$2,fd=* ]]; do sleep 0.1; done; }
+waitncatudp() { pretty "${1//*-}" "wait for udp:1111 pid $2"; while [[ $(ss -N "$1" -ulpH 'sport = 1111') != *\"ncat\",pid=$2,fd=* ]]; do sleep 0.1; done; }
+waitiface() { pretty "${1//*-}" "wait for $2 to come up"; ip netns exec "$1" bash -c "while [[ \$(< \"/sys/class/net/$2/operstate\") != up ]]; do read -t .1 -N 0 || true; done;"; }
+
+cleanup() {
+ set +e
+ exec 2>/dev/null
+ printf "$orig_message_cost" > /proc/sys/net/core/message_cost
+ ip0 link del dev wg0
+ ip0 link del dev wg1
+ ip1 link del dev wg0
+ ip1 link del dev wg1
+ ip2 link del dev wg0
+ ip2 link del dev wg1
+ local to_kill="$(ip netns pids $netns0) $(ip netns pids $netns1) $(ip netns pids $netns2)"
+ [[ -n $to_kill ]] && kill $to_kill
+ pp ip netns del $netns1
+ pp ip netns del $netns2
+ pp ip netns del $netns0
+ exit
+}
+
+orig_message_cost="$(< /proc/sys/net/core/message_cost)"
+trap cleanup EXIT
+printf 0 > /proc/sys/net/core/message_cost
+
+ip netns del $netns0 2>/dev/null || true
+ip netns del $netns1 2>/dev/null || true
+ip netns del $netns2 2>/dev/null || true
+pp ip netns add $netns0
+pp ip netns add $netns1
+pp ip netns add $netns2
+ip0 link set up dev lo
+
+ip0 link add dev wg0 type wireguard
+ip0 link set wg0 netns $netns1
+ip0 link add dev wg0 type wireguard
+ip0 link set wg0 netns $netns2
+key1="$(pp wg genkey)"
+key2="$(pp wg genkey)"
+key3="$(pp wg genkey)"
+key4="$(pp wg genkey)"
+pub1="$(pp wg pubkey <<<"$key1")"
+pub2="$(pp wg pubkey <<<"$key2")"
+pub3="$(pp wg pubkey <<<"$key3")"
+pub4="$(pp wg pubkey <<<"$key4")"
+psk="$(pp wg genpsk)"
+[[ -n $key1 && -n $key2 && -n $psk ]]
+
+configure_peers() {
+ ip1 addr add 192.168.241.1/24 dev wg0
+ ip1 addr add fd00::1/112 dev wg0
+
+ ip2 addr add 192.168.241.2/24 dev wg0
+ ip2 addr add fd00::2/112 dev wg0
+
+ n1 wg set wg0 \
+ private-key <(echo "$key1") \
+ listen-port 1 \
+ peer "$pub2" \
+ preshared-key <(echo "$psk") \
+ allowed-ips 192.168.241.2/32,fd00::2/128
+ n2 wg set wg0 \
+ private-key <(echo "$key2") \
+ listen-port 2 \
+ peer "$pub1" \
+ preshared-key <(echo "$psk") \
+ allowed-ips 192.168.241.1/32,fd00::1/128
+
+ ip1 link set up dev wg0
+ ip2 link set up dev wg0
+}
+configure_peers
+
+tests() {
+ # Ping over IPv4
+ n2 ping -c 10 -f -W 1 192.168.241.1
+ n1 ping -c 10 -f -W 1 192.168.241.2
+
+ # Ping over IPv6
+ n2 ping6 -c 10 -f -W 1 fd00::1
+ n1 ping6 -c 10 -f -W 1 fd00::2
+
+ # TCP over IPv4
+ n2 iperf3 -s -1 -B 192.168.241.2 &
+ waitiperf $netns2 $!
+ n1 iperf3 -Z -t 3 -c 192.168.241.2
+
+ # TCP over IPv6
+ n1 iperf3 -s -1 -B fd00::1 &
+ waitiperf $netns1 $!
+ n2 iperf3 -Z -t 3 -c fd00::1
+
+ # UDP over IPv4
+ n1 iperf3 -s -1 -B 192.168.241.1 &
+ waitiperf $netns1 $!
+ n2 iperf3 -Z -t 3 -b 0 -u -c 192.168.241.1
+
+ # UDP over IPv6
+ n2 iperf3 -s -1 -B fd00::2 &
+ waitiperf $netns2 $!
+ n1 iperf3 -Z -t 3 -b 0 -u -c fd00::2
+}
+
+[[ $(ip1 link show dev wg0) =~ mtu\ ([0-9]+) ]] && orig_mtu="${BASH_REMATCH[1]}"
+big_mtu=$(( 34816 - 1500 + $orig_mtu ))
+
+# Test using IPv4 as outer transport
+n1 wg set wg0 peer "$pub2" endpoint 127.0.0.1:2
+n2 wg set wg0 peer "$pub1" endpoint 127.0.0.1:1
+# Before calling tests, we first make sure that the stats counters and timestamper are working
+n2 ping -c 10 -f -W 1 192.168.241.1
+{ read _; read _; read _; read rx_bytes _; read _; read tx_bytes _; } < <(ip2 -stats link show dev wg0)
+(( rx_bytes == 1372 && (tx_bytes == 1428 || tx_bytes == 1460) ))
+{ read _; read _; read _; read rx_bytes _; read _; read tx_bytes _; } < <(ip1 -stats link show dev wg0)
+(( tx_bytes == 1372 && (rx_bytes == 1428 || rx_bytes == 1460) ))
+read _ rx_bytes tx_bytes < <(n2 wg show wg0 transfer)
+(( rx_bytes == 1372 && (tx_bytes == 1428 || tx_bytes == 1460) ))
+read _ rx_bytes tx_bytes < <(n1 wg show wg0 transfer)
+(( tx_bytes == 1372 && (rx_bytes == 1428 || rx_bytes == 1460) ))
+read _ timestamp < <(n1 wg show wg0 latest-handshakes)
+(( timestamp != 0 ))
+
+tests
+ip1 link set wg0 mtu $big_mtu
+ip2 link set wg0 mtu $big_mtu
+tests
+
+ip1 link set wg0 mtu $orig_mtu
+ip2 link set wg0 mtu $orig_mtu
+
+# Test using IPv6 as outer transport
+n1 wg set wg0 peer "$pub2" endpoint [::1]:2
+n2 wg set wg0 peer "$pub1" endpoint [::1]:1
+tests
+ip1 link set wg0 mtu $big_mtu
+ip2 link set wg0 mtu $big_mtu
+tests
+
+# Test that route MTUs work with the padding
+ip1 link set wg0 mtu 1300
+ip2 link set wg0 mtu 1300
+n1 wg set wg0 peer "$pub2" endpoint 127.0.0.1:2
+n2 wg set wg0 peer "$pub1" endpoint 127.0.0.1:1
+n0 iptables -A INPUT -m length --length 1360 -j DROP
+n1 ip route add 192.168.241.2/32 dev wg0 mtu 1299
+n2 ip route add 192.168.241.1/32 dev wg0 mtu 1299
+n2 ping -c 1 -W 1 -s 1269 192.168.241.1
+n2 ip route delete 192.168.241.1/32 dev wg0 mtu 1299
+n1 ip route delete 192.168.241.2/32 dev wg0 mtu 1299
+n0 iptables -F INPUT
+
+ip1 link set wg0 mtu $orig_mtu
+ip2 link set wg0 mtu $orig_mtu
+
+# Test using IPv4 that roaming works
+ip0 -4 addr del 127.0.0.1/8 dev lo
+ip0 -4 addr add 127.212.121.99/8 dev lo
+n1 wg set wg0 listen-port 9999
+n1 wg set wg0 peer "$pub2" endpoint 127.0.0.1:2
+n1 ping6 -W 1 -c 1 fd00::2
+[[ $(n2 wg show wg0 endpoints) == "$pub1 127.212.121.99:9999" ]]
+
+# Test using IPv6 that roaming works
+n1 wg set wg0 listen-port 9998
+n1 wg set wg0 peer "$pub2" endpoint [::1]:2
+n1 ping -W 1 -c 1 192.168.241.2
+[[ $(n2 wg show wg0 endpoints) == "$pub1 [::1]:9998" ]]
+
+# Test that crypto-RP filter works
+n1 wg set wg0 peer "$pub2" allowed-ips 192.168.241.0/24
+exec 4< <(n1 ncat -l -u -p 1111)
+ncat_pid=$!
+waitncatudp $netns1 $ncat_pid
+n2 ncat -u 192.168.241.1 1111 <<<"X"
+read -r -N 1 -t 1 out <&4 && [[ $out == "X" ]]
+kill $ncat_pid
+more_specific_key="$(pp wg genkey | pp wg pubkey)"
+n1 wg set wg0 peer "$more_specific_key" allowed-ips 192.168.241.2/32
+n2 wg set wg0 listen-port 9997
+exec 4< <(n1 ncat -l -u -p 1111)
+ncat_pid=$!
+waitncatudp $netns1 $ncat_pid
+n2 ncat -u 192.168.241.1 1111 <<<"X"
+! read -r -N 1 -t 1 out <&4 || false
+kill $ncat_pid
+n1 wg set wg0 peer "$more_specific_key" remove
+[[ $(n1 wg show wg0 endpoints) == "$pub2 [::1]:9997" ]]
+
+# Test that we can change private keys keys and immediately handshake
+n1 wg set wg0 private-key <(echo "$key1") peer "$pub2" preshared-key <(echo "$psk") allowed-ips 192.168.241.2/32 endpoint 127.0.0.1:2
+n2 wg set wg0 private-key <(echo "$key2") listen-port 2 peer "$pub1" preshared-key <(echo "$psk") allowed-ips 192.168.241.1/32
+n1 ping -W 1 -c 1 192.168.241.2
+n1 wg set wg0 private-key <(echo "$key3")
+n2 wg set wg0 peer "$pub3" preshared-key <(echo "$psk") allowed-ips 192.168.241.1/32 peer "$pub1" remove
+n1 ping -W 1 -c 1 192.168.241.2
+n2 wg set wg0 peer "$pub3" remove
+
+# Test that we can route wg through wg
+ip1 addr flush dev wg0
+ip2 addr flush dev wg0
+ip1 addr add fd00::5:1/112 dev wg0
+ip2 addr add fd00::5:2/112 dev wg0
+n1 wg set wg0 private-key <(echo "$key1") peer "$pub2" preshared-key <(echo "$psk") allowed-ips fd00::5:2/128 endpoint 127.0.0.1:2
+n2 wg set wg0 private-key <(echo "$key2") listen-port 2 peer "$pub1" preshared-key <(echo "$psk") allowed-ips fd00::5:1/128 endpoint 127.212.121.99:9998
+ip1 link add wg1 type wireguard
+ip2 link add wg1 type wireguard
+ip1 addr add 192.168.241.1/24 dev wg1
+ip1 addr add fd00::1/112 dev wg1
+ip2 addr add 192.168.241.2/24 dev wg1
+ip2 addr add fd00::2/112 dev wg1
+ip1 link set mtu 1340 up dev wg1
+ip2 link set mtu 1340 up dev wg1
+n1 wg set wg1 listen-port 5 private-key <(echo "$key3") peer "$pub4" allowed-ips 192.168.241.2/32,fd00::2/128 endpoint [fd00::5:2]:5
+n2 wg set wg1 listen-port 5 private-key <(echo "$key4") peer "$pub3" allowed-ips 192.168.241.1/32,fd00::1/128 endpoint [fd00::5:1]:5
+tests
+# Try to set up a routing loop between the two namespaces
+ip1 link set netns $netns0 dev wg1
+ip0 addr add 192.168.241.1/24 dev wg1
+ip0 link set up dev wg1
+n0 ping -W 1 -c 1 192.168.241.2
+n1 wg set wg0 peer "$pub2" endpoint 192.168.241.2:7
+ip2 link del wg0
+ip2 link del wg1
+! n0 ping -W 1 -c 10 -f 192.168.241.2 || false # Should not crash kernel
+
+ip0 link del wg1
+ip1 link del wg0
+
+# Test using NAT. We now change the topology to this:
+# ┌────────────────────────────────────────┐ ┌────────────────────────────────────────────────┐ ┌────────────────────────────────────────┐
+# │ $ns1 namespace │ │ $ns0 namespace │ │ $ns2 namespace │
+# │ │ │ │ │ │
+# │ ┌─────┐ ┌─────┐ │ │ ┌──────┐ ┌──────┐ │ │ ┌─────┐ ┌─────┐ │
+# │ │ wg0 │─────────────│vethc│───────────┼────┼────│vethrc│ │vethrs│──────────────┼─────┼──│veths│────────────│ wg0 │ │
+# │ ├─────┴──────────┐ ├─────┴──────────┐│ │ ├──────┴─────────┐ ├──────┴────────────┐ │ │ ├─────┴──────────┐ ├─────┴──────────┐ │
+# │ │192.168.241.1/24│ │192.168.1.100/24││ │ │192.168.1.1/24 │ │10.0.0.1/24 │ │ │ │10.0.0.100/24 │ │192.168.241.2/24│ │
+# │ │fd00::1/24 │ │ ││ │ │ │ │SNAT:192.168.1.0/24│ │ │ │ │ │fd00::2/24 │ │
+# │ └────────────────┘ └────────────────┘│ │ └────────────────┘ └───────────────────┘ │ │ └────────────────┘ └────────────────┘ │
+# └────────────────────────────────────────┘ └────────────────────────────────────────────────┘ └────────────────────────────────────────┘
+
+ip1 link add dev wg0 type wireguard
+ip2 link add dev wg0 type wireguard
+configure_peers
+
+ip0 link add vethrc type veth peer name vethc
+ip0 link add vethrs type veth peer name veths
+ip0 link set vethc netns $netns1
+ip0 link set veths netns $netns2
+ip0 link set vethrc up
+ip0 link set vethrs up
+ip0 addr add 192.168.1.1/24 dev vethrc
+ip0 addr add 10.0.0.1/24 dev vethrs
+ip1 addr add 192.168.1.100/24 dev vethc
+ip1 link set vethc up
+ip1 route add default via 192.168.1.1
+ip2 addr add 10.0.0.100/24 dev veths
+ip2 link set veths up
+waitiface $netns0 vethrc
+waitiface $netns0 vethrs
+waitiface $netns1 vethc
+waitiface $netns2 veths
+
+n0 bash -c 'printf 1 > /proc/sys/net/ipv4/ip_forward'
+n0 bash -c 'printf 2 > /proc/sys/net/netfilter/nf_conntrack_udp_timeout'
+n0 bash -c 'printf 2 > /proc/sys/net/netfilter/nf_conntrack_udp_timeout_stream'
+n0 iptables -t nat -A POSTROUTING -s 192.168.1.0/24 -d 10.0.0.0/24 -j SNAT --to 10.0.0.1
+
+n1 wg set wg0 peer "$pub2" endpoint 10.0.0.100:2 persistent-keepalive 1
+n1 ping -W 1 -c 1 192.168.241.2
+n2 ping -W 1 -c 1 192.168.241.1
+[[ $(n2 wg show wg0 endpoints) == "$pub1 10.0.0.1:1" ]]
+# Demonstrate n2 can still send packets to n1, since persistent-keepalive will prevent connection tracking entry from expiring (to see entries: `n0 conntrack -L`).
+pp sleep 3
+n2 ping -W 1 -c 1 192.168.241.1
+n1 wg set wg0 peer "$pub2" persistent-keepalive 0
+
+# Test that onion routing works, even when it loops
+n1 wg set wg0 peer "$pub3" allowed-ips 192.168.242.2/32 endpoint 192.168.241.2:5
+ip1 addr add 192.168.242.1/24 dev wg0
+ip2 link add wg1 type wireguard
+ip2 addr add 192.168.242.2/24 dev wg1
+n2 wg set wg1 private-key <(echo "$key3") listen-port 5 peer "$pub1" allowed-ips 192.168.242.1/32
+ip2 link set wg1 up
+n1 ping -W 1 -c 1 192.168.242.2
+ip2 link del wg1
+n1 wg set wg0 peer "$pub3" endpoint 192.168.242.2:5
+! n1 ping -W 1 -c 1 192.168.242.2 || false # Should not crash kernel
+n1 wg set wg0 peer "$pub3" remove
+ip1 addr del 192.168.242.1/24 dev wg0
+
+# Do a wg-quick(8)-style policy routing for the default route, making sure vethc has a v6 address to tease out bugs.
+ip1 -6 addr add fc00::9/96 dev vethc
+ip1 -6 route add default via fc00::1
+ip2 -4 addr add 192.168.99.7/32 dev wg0
+ip2 -6 addr add abab::1111/128 dev wg0
+n1 wg set wg0 fwmark 51820 peer "$pub2" allowed-ips 192.168.99.7,abab::1111
+ip1 -6 route add default dev wg0 table 51820
+ip1 -6 rule add not fwmark 51820 table 51820
+ip1 -6 rule add table main suppress_prefixlength 0
+ip1 -4 route add default dev wg0 table 51820
+ip1 -4 rule add not fwmark 51820 table 51820
+ip1 -4 rule add table main suppress_prefixlength 0
+# Flood the pings instead of sending just one, to trigger routing table reference counting bugs.
+n1 ping -W 1 -c 100 -f 192.168.99.7
+n1 ping -W 1 -c 100 -f abab::1111
+
+# Have ns2 NAT into wg0 packets from ns0, but return an icmp error along the right route.
+n2 iptables -t nat -A POSTROUTING -s 10.0.0.0/24 -d 192.168.241.0/24 -j SNAT --to 192.168.241.2
+n0 iptables -t filter -A INPUT \! -s 10.0.0.0/24 -i vethrs -j DROP # Manual rpfilter just to be explicit.
+n2 bash -c 'printf 1 > /proc/sys/net/ipv4/ip_forward'
+ip0 -4 route add 192.168.241.1 via 10.0.0.100
+n2 wg set wg0 peer "$pub1" remove
+[[ $(! n0 ping -W 1 -c 1 192.168.241.1 || false) == *"From 10.0.0.100 icmp_seq=1 Destination Host Unreachable"* ]]
+
+n0 iptables -t nat -F
+n0 iptables -t filter -F
+n2 iptables -t nat -F
+ip0 link del vethrc
+ip0 link del vethrs
+ip1 link del wg0
+ip2 link del wg0
+
+# Test that saddr routing is sticky but not too sticky, changing to this topology:
+# ┌────────────────────────────────────────┐ ┌────────────────────────────────────────┐
+# │ $ns1 namespace │ │ $ns2 namespace │
+# │ │ │ │
+# │ ┌─────┐ ┌─────┐ │ │ ┌─────┐ ┌─────┐ │
+# │ │ wg0 │─────────────│veth1│───────────┼────┼──│veth2│────────────│ wg0 │ │
+# │ ├─────┴──────────┐ ├─────┴──────────┐│ │ ├─────┴──────────┐ ├─────┴──────────┐ │
+# │ │192.168.241.1/24│ │10.0.0.1/24 ││ │ │10.0.0.2/24 │ │192.168.241.2/24│ │
+# │ │fd00::1/24 │ │fd00:aa::1/96 ││ │ │fd00:aa::2/96 │ │fd00::2/24 │ │
+# │ └────────────────┘ └────────────────┘│ │ └────────────────┘ └────────────────┘ │
+# └────────────────────────────────────────┘ └────────────────────────────────────────┘
+
+ip1 link add dev wg0 type wireguard
+ip2 link add dev wg0 type wireguard
+configure_peers
+ip1 link add veth1 type veth peer name veth2
+ip1 link set veth2 netns $netns2
+n1 bash -c 'printf 0 > /proc/sys/net/ipv6/conf/all/accept_dad'
+n2 bash -c 'printf 0 > /proc/sys/net/ipv6/conf/all/accept_dad'
+n1 bash -c 'printf 0 > /proc/sys/net/ipv6/conf/veth1/accept_dad'
+n2 bash -c 'printf 0 > /proc/sys/net/ipv6/conf/veth2/accept_dad'
+n1 bash -c 'printf 1 > /proc/sys/net/ipv4/conf/veth1/promote_secondaries'
+
+# First we check that we aren't overly sticky and can fall over to new IPs when old ones are removed
+ip1 addr add 10.0.0.1/24 dev veth1
+ip1 addr add fd00:aa::1/96 dev veth1
+ip2 addr add 10.0.0.2/24 dev veth2
+ip2 addr add fd00:aa::2/96 dev veth2
+ip1 link set veth1 up
+ip2 link set veth2 up
+waitiface $netns1 veth1
+waitiface $netns2 veth2
+n1 wg set wg0 peer "$pub2" endpoint 10.0.0.2:2
+n1 ping -W 1 -c 1 192.168.241.2
+ip1 addr add 10.0.0.10/24 dev veth1
+ip1 addr del 10.0.0.1/24 dev veth1
+n1 ping -W 1 -c 1 192.168.241.2
+n1 wg set wg0 peer "$pub2" endpoint [fd00:aa::2]:2
+n1 ping -W 1 -c 1 192.168.241.2
+ip1 addr add fd00:aa::10/96 dev veth1
+ip1 addr del fd00:aa::1/96 dev veth1
+n1 ping -W 1 -c 1 192.168.241.2
+
+# Now we show that we can successfully do reply to sender routing
+ip1 link set veth1 down
+ip2 link set veth2 down
+ip1 addr flush dev veth1
+ip2 addr flush dev veth2
+ip1 addr add 10.0.0.1/24 dev veth1
+ip1 addr add 10.0.0.2/24 dev veth1
+ip1 addr add fd00:aa::1/96 dev veth1
+ip1 addr add fd00:aa::2/96 dev veth1
+ip2 addr add 10.0.0.3/24 dev veth2
+ip2 addr add fd00:aa::3/96 dev veth2
+ip1 link set veth1 up
+ip2 link set veth2 up
+waitiface $netns1 veth1
+waitiface $netns2 veth2
+n2 wg set wg0 peer "$pub1" endpoint 10.0.0.1:1
+n2 ping -W 1 -c 1 192.168.241.1
+[[ $(n2 wg show wg0 endpoints) == "$pub1 10.0.0.1:1" ]]
+n2 wg set wg0 peer "$pub1" endpoint [fd00:aa::1]:1
+n2 ping -W 1 -c 1 192.168.241.1
+[[ $(n2 wg show wg0 endpoints) == "$pub1 [fd00:aa::1]:1" ]]
+n2 wg set wg0 peer "$pub1" endpoint 10.0.0.2:1
+n2 ping -W 1 -c 1 192.168.241.1
+[[ $(n2 wg show wg0 endpoints) == "$pub1 10.0.0.2:1" ]]
+n2 wg set wg0 peer "$pub1" endpoint [fd00:aa::2]:1
+n2 ping -W 1 -c 1 192.168.241.1
+[[ $(n2 wg show wg0 endpoints) == "$pub1 [fd00:aa::2]:1" ]]
+
+# What happens if the inbound destination address belongs to a different interface as the default route?
+ip1 link add dummy0 type dummy
+ip1 addr add 10.50.0.1/24 dev dummy0
+ip1 link set dummy0 up
+ip2 route add 10.50.0.0/24 dev veth2
+n2 wg set wg0 peer "$pub1" endpoint 10.50.0.1:1
+n2 ping -W 1 -c 1 192.168.241.1
+[[ $(n2 wg show wg0 endpoints) == "$pub1 10.50.0.1:1" ]]
+
+ip1 link del dummy0
+ip1 addr flush dev veth1
+ip2 addr flush dev veth2
+ip1 route flush dev veth1
+ip2 route flush dev veth2
+
+# Now we see what happens if another interface route takes precedence over an ongoing one
+ip1 link add veth3 type veth peer name veth4
+ip1 link set veth4 netns $netns2
+ip1 addr add 10.0.0.1/24 dev veth1
+ip2 addr add 10.0.0.2/24 dev veth2
+ip1 addr add 10.0.0.3/24 dev veth3
+ip1 link set veth1 up
+ip2 link set veth2 up
+ip1 link set veth3 up
+ip2 link set veth4 up
+waitiface $netns1 veth1
+waitiface $netns2 veth2
+waitiface $netns1 veth3
+waitiface $netns2 veth4
+ip1 route flush dev veth1
+ip1 route flush dev veth3
+ip1 route add 10.0.0.0/24 dev veth1 src 10.0.0.1 metric 2
+n1 wg set wg0 peer "$pub2" endpoint 10.0.0.2:2
+n1 ping -W 1 -c 1 192.168.241.2
+[[ $(n2 wg show wg0 endpoints) == "$pub1 10.0.0.1:1" ]]
+ip1 route add 10.0.0.0/24 dev veth3 src 10.0.0.3 metric 1
+n1 bash -c 'printf 0 > /proc/sys/net/ipv4/conf/veth1/rp_filter'
+n2 bash -c 'printf 0 > /proc/sys/net/ipv4/conf/veth4/rp_filter'
+n1 bash -c 'printf 0 > /proc/sys/net/ipv4/conf/all/rp_filter'
+n2 bash -c 'printf 0 > /proc/sys/net/ipv4/conf/all/rp_filter'
+n1 ping -W 1 -c 1 192.168.241.2
+[[ $(n2 wg show wg0 endpoints) == "$pub1 10.0.0.3:1" ]]
+
+ip1 link del veth1
+ip1 link del veth3
+ip1 link del wg0
+ip2 link del wg0
+
+# We test that Netlink/IPC is working properly by doing things that usually cause split responses
+ip0 link add dev wg0 type wireguard
+config=( "[Interface]" "PrivateKey=$(wg genkey)" "[Peer]" "PublicKey=$(wg genkey)" )
+for a in {1..255}; do
+ for b in {0..255}; do
+ config+=( "AllowedIPs=$a.$b.0.0/16,$a::$b/128" )
+ done
+done
+n0 wg setconf wg0 <(printf '%s\n' "${config[@]}")
+i=0
+for ip in $(n0 wg show wg0 allowed-ips); do
+ ((++i))
+done
+((i == 255*256*2+1))
+ip0 link del wg0
+ip0 link add dev wg0 type wireguard
+config=( "[Interface]" "PrivateKey=$(wg genkey)" )
+for a in {1..40}; do
+ config+=( "[Peer]" "PublicKey=$(wg genkey)" )
+ for b in {1..52}; do
+ config+=( "AllowedIPs=$a.$b.0.0/16" )
+ done
+done
+n0 wg setconf wg0 <(printf '%s\n' "${config[@]}")
+i=0
+while read -r line; do
+ j=0
+ for ip in $line; do
+ ((++j))
+ done
+ ((j == 53))
+ ((++i))
+done < <(n0 wg show wg0 allowed-ips)
+((i == 40))
+ip0 link del wg0
+ip0 link add wg0 type wireguard
+config=( )
+for i in {1..29}; do
+ config+=( "[Peer]" "PublicKey=$(wg genkey)" )
+done
+config+=( "[Peer]" "PublicKey=$(wg genkey)" "AllowedIPs=255.2.3.4/32,abcd::255/128" )
+n0 wg setconf wg0 <(printf '%s\n' "${config[@]}")
+n0 wg showconf wg0 > /dev/null
+ip0 link del wg0
+
+allowedips=( )
+for i in {1..197}; do
+ allowedips+=( abcd::$i )
+done
+saved_ifs="$IFS"
+IFS=,
+allowedips="${allowedips[*]}"
+IFS="$saved_ifs"
+ip0 link add wg0 type wireguard
+n0 wg set wg0 peer "$pub1"
+n0 wg set wg0 peer "$pub2" allowed-ips "$allowedips"
+{
+ read -r pub allowedips
+ [[ $pub == "$pub1" && $allowedips == "(none)" ]]
+ read -r pub allowedips
+ [[ $pub == "$pub2" ]]
+ i=0
+ for _ in $allowedips; do
+ ((++i))
+ done
+ ((i == 197))
+} < <(n0 wg show wg0 allowed-ips)
+ip0 link del wg0
+
+! n0 wg show doesnotexist || false
+
+ip0 link add wg0 type wireguard
+n0 wg set wg0 private-key <(echo "$key1") peer "$pub2" preshared-key <(echo "$psk")
+[[ $(n0 wg show wg0 private-key) == "$key1" ]]
+[[ $(n0 wg show wg0 preshared-keys) == "$pub2 $psk" ]]
+n0 wg set wg0 private-key /dev/null peer "$pub2" preshared-key /dev/null
+[[ $(n0 wg show wg0 private-key) == "(none)" ]]
+[[ $(n0 wg show wg0 preshared-keys) == "$pub2 (none)" ]]
+n0 wg set wg0 peer "$pub2"
+n0 wg set wg0 private-key <(echo "$key2")
+[[ $(n0 wg show wg0 public-key) == "$pub2" ]]
+[[ -z $(n0 wg show wg0 peers) ]]
+n0 wg set wg0 peer "$pub2"
+[[ -z $(n0 wg show wg0 peers) ]]
+n0 wg set wg0 private-key <(echo "$key1")
+n0 wg set wg0 peer "$pub2"
+[[ $(n0 wg show wg0 peers) == "$pub2" ]]
+n0 wg set wg0 private-key <(echo "/${key1:1}")
+[[ $(n0 wg show wg0 private-key) == "+${key1:1}" ]]
+n0 wg set wg0 peer "$pub2" allowed-ips 0.0.0.0/0,10.0.0.0/8,100.0.0.0/10,172.16.0.0/12,192.168.0.0/16
+n0 wg set wg0 peer "$pub2" allowed-ips 0.0.0.0/0
+n0 wg set wg0 peer "$pub2" allowed-ips ::/0,1700::/111,5000::/4,e000::/37,9000::/75
+n0 wg set wg0 peer "$pub2" allowed-ips ::/0
+n0 wg set wg0 peer "$pub2" remove
+for low_order_point in AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA= AQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA= 4Ot6fDtBuK4WVuP68Z/EatoJjeucMrH9hmIFFl9JuAA= X5yVvKNQjCSx0LFVnIPvWwREXMRYHI6G2CJO3dCfEVc= 7P///////////////////////////////////////38= 7f///////////////////////////////////////38= 7v///////////////////////////////////////38=; do
+ n0 wg set wg0 peer "$low_order_point" persistent-keepalive 1 endpoint 127.0.0.1:1111
+done
+[[ -n $(n0 wg show wg0 peers) ]]
+exec 4< <(n0 ncat -l -u -p 1111)
+ncat_pid=$!
+waitncatudp $netns0 $ncat_pid
+ip0 link set wg0 up
+! read -r -n 1 -t 2 <&4 || false
+kill $ncat_pid
+ip0 link del wg0
+
+# Ensure there aren't circular reference loops
+ip1 link add wg1 type wireguard
+ip2 link add wg2 type wireguard
+ip1 link set wg1 netns $netns2
+ip2 link set wg2 netns $netns1
+pp ip netns delete $netns1
+pp ip netns delete $netns2
+pp ip netns add $netns1
+pp ip netns add $netns2
+
+sleep 2 # Wait for cleanup and grace periods
+declare -A objects
+while read -t 0.1 -r line 2>/dev/null || [[ $? -ne 142 ]]; do
+ [[ $line =~ .*(wg[0-9]+:\ [A-Z][a-z]+\ ?[0-9]*)\ .*(created|destroyed).* ]] || continue
+ objects["${BASH_REMATCH[1]}"]+="${BASH_REMATCH[2]}"
+done < /dev/kmsg
+alldeleted=1
+for object in "${!objects[@]}"; do
+ if [[ ${objects["$object"]} != *createddestroyed ]]; then
+ echo "Error: $object: merely ${objects["$object"]}" >&3
+ alldeleted=0
+ fi
+done
+[[ $alldeleted -eq 1 ]]
+pretty "" "Objects that were created were also destroyed."
diff --git a/tools/testing/selftests/wireguard/qemu/.gitignore b/tools/testing/selftests/wireguard/qemu/.gitignore
new file mode 100644
index 0000000..415b542
--- /dev/null
+++ b/tools/testing/selftests/wireguard/qemu/.gitignore
@@ -0,0 +1,2 @@
+build/
+distfiles/
diff --git a/tools/testing/selftests/wireguard/qemu/Makefile b/tools/testing/selftests/wireguard/qemu/Makefile
new file mode 100644
index 0000000..2dab4f5
--- /dev/null
+++ b/tools/testing/selftests/wireguard/qemu/Makefile
@@ -0,0 +1,377 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+
+PWD := $(shell pwd)
+
+CHOST := $(shell gcc -dumpmachine)
+HOST_ARCH := $(firstword $(subst -, ,$(CHOST)))
+ifneq (,$(ARCH))
+CBUILD := $(subst -gcc,,$(lastword $(subst /, ,$(firstword $(wildcard $(foreach bindir,$(subst :, ,$(PATH)),$(bindir)/$(ARCH)-*-gcc))))))
+ifeq (,$(CBUILD))
+$(error The toolchain for $(ARCH) is not installed)
+endif
+else
+CBUILD := $(CHOST)
+ARCH := $(firstword $(subst -, ,$(CBUILD)))
+endif
+
+# Set these from the environment to override
+KERNEL_PATH ?= $(PWD)/../../../../..
+BUILD_PATH ?= $(PWD)/build/$(ARCH)
+DISTFILES_PATH ?= $(PWD)/distfiles
+NR_CPUS ?= 4
+
+MIRROR := https://download.wireguard.com/qemu-test/distfiles/
+
+default: qemu
+
+# variable name, tarball project name, version, tarball extension, default URI base
+define tar_download =
+$(1)_VERSION := $(3)
+$(1)_NAME := $(2)-$$($(1)_VERSION)
+$(1)_TAR := $(DISTFILES_PATH)/$$($(1)_NAME)$(4)
+$(1)_PATH := $(BUILD_PATH)/$$($(1)_NAME)
+$(call file_download,$$($(1)_NAME)$(4),$(5),$(6))
+endef
+
+define file_download =
+$(DISTFILES_PATH)/$(1):
+ mkdir -p $(DISTFILES_PATH)
+ flock -x $$@.lock -c '[ -f $$@ ] && exit 0; wget -O $$@.tmp $(MIRROR)$(1) || wget -O $$@.tmp $(2)$(1) || rm -f $$@.tmp; [ -f $$@.tmp ] || exit 1; if echo "$(3) $$@.tmp" | sha256sum -c -; then mv $$@.tmp $$@; else rm -f $$@.tmp; exit 71; fi'
+endef
+
+$(eval $(call tar_download,MUSL,musl,1.1.24,.tar.gz,https://www.musl-libc.org/releases/,1370c9a812b2cf2a7d92802510cca0058cc37e66a7bedd70051f0a34015022a3))
+$(eval $(call tar_download,IPERF,iperf,3.7,.tar.gz,https://downloads.es.net/pub/iperf/,d846040224317caf2f75c843d309a950a7db23f9b44b94688ccbe557d6d1710c))
+$(eval $(call tar_download,BASH,bash,5.0,.tar.gz,https://ftp.gnu.org/gnu/bash/,b4a80f2ac66170b2913efbfb9f2594f1f76c7b1afd11f799e22035d63077fb4d))
+$(eval $(call tar_download,IPROUTE2,iproute2,5.6.0,.tar.xz,https://www.kernel.org/pub/linux/utils/net/iproute2/,1b5b0e25ce6e23da7526ea1da044e814ad85ba761b10dd29c2b027c056b04692))
+$(eval $(call tar_download,IPTABLES,iptables,1.8.4,.tar.bz2,https://www.netfilter.org/projects/iptables/files/,993a3a5490a544c2cbf2ef15cf7e7ed21af1845baf228318d5c36ef8827e157c))
+$(eval $(call tar_download,NMAP,nmap,7.80,.tar.bz2,https://nmap.org/dist/,fcfa5a0e42099e12e4bf7a68ebe6fde05553383a682e816a7ec9256ab4773faa))
+$(eval $(call tar_download,IPUTILS,iputils,s20190709,.tar.gz,https://github.com/iputils/iputils/archive/s20190709.tar.gz/#,a15720dd741d7538dd2645f9f516d193636ae4300ff7dbc8bfca757bf166490a))
+$(eval $(call tar_download,WIREGUARD_TOOLS,wireguard-tools,1.0.20200206,.tar.xz,https://git.zx2c4.com/wireguard-tools/snapshot/,f5207248c6a3c3e3bfc9ab30b91c1897b00802ed861e1f9faaed873366078c64))
+
+KERNEL_BUILD_PATH := $(BUILD_PATH)/kernel$(if $(findstring yes,$(DEBUG_KERNEL)),-debug)
+rwildcard=$(foreach d,$(wildcard $1*),$(call rwildcard,$d/,$2) $(filter $(subst *,%,$2),$d))
+WIREGUARD_SOURCES := $(call rwildcard,$(KERNEL_PATH)/drivers/net/wireguard/,*)
+
+export CFLAGS ?= -O3 -pipe
+export LDFLAGS ?=
+export CPPFLAGS := -I$(BUILD_PATH)/include
+
+ifeq ($(HOST_ARCH),$(ARCH))
+CROSS_COMPILE_FLAG := --host=$(CHOST)
+CFLAGS += -march=native
+STRIP := strip
+else
+$(info Cross compilation: building for $(CBUILD) using $(CHOST))
+CROSS_COMPILE_FLAG := --build=$(CBUILD) --host=$(CHOST)
+export CROSS_COMPILE=$(CBUILD)-
+STRIP := $(CBUILD)-strip
+endif
+ifeq ($(ARCH),aarch64)
+QEMU_ARCH := aarch64
+KERNEL_ARCH := arm64
+KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/arch/arm64/boot/Image
+ifeq ($(HOST_ARCH),$(ARCH))
+QEMU_MACHINE := -cpu host -machine virt,gic_version=host,accel=kvm
+else
+QEMU_MACHINE := -cpu cortex-a53 -machine virt
+CFLAGS += -march=armv8-a -mtune=cortex-a53
+endif
+else ifeq ($(ARCH),aarch64_be)
+QEMU_ARCH := aarch64
+KERNEL_ARCH := arm64
+KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/arch/arm64/boot/Image
+ifeq ($(HOST_ARCH),$(ARCH))
+QEMU_MACHINE := -cpu host -machine virt,gic_version=host,accel=kvm
+else
+QEMU_MACHINE := -cpu cortex-a53 -machine virt
+CFLAGS += -march=armv8-a -mtune=cortex-a53
+endif
+else ifeq ($(ARCH),arm)
+QEMU_ARCH := arm
+KERNEL_ARCH := arm
+KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/arch/arm/boot/zImage
+ifeq ($(HOST_ARCH),$(ARCH))
+QEMU_MACHINE := -cpu host -machine virt,gic_version=host,accel=kvm
+else
+QEMU_MACHINE := -cpu cortex-a15 -machine virt
+CFLAGS += -march=armv7-a -mtune=cortex-a15 -mabi=aapcs-linux
+endif
+else ifeq ($(ARCH),armeb)
+QEMU_ARCH := arm
+KERNEL_ARCH := arm
+KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/arch/arm/boot/zImage
+ifeq ($(HOST_ARCH),$(ARCH))
+QEMU_MACHINE := -cpu host -machine virt,gic_version=host,accel=kvm
+else
+QEMU_MACHINE := -cpu cortex-a15 -machine virt
+CFLAGS += -march=armv7-a -mabi=aapcs-linux # We don't pass -mtune=cortex-a15 due to a compiler bug on big endian.
+LDFLAGS += -Wl,--be8
+endif
+else ifeq ($(ARCH),x86_64)
+QEMU_ARCH := x86_64
+KERNEL_ARCH := x86_64
+KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/arch/x86/boot/bzImage
+ifeq ($(HOST_ARCH),$(ARCH))
+QEMU_MACHINE := -cpu host -machine q35,accel=kvm
+else
+QEMU_MACHINE := -cpu Skylake-Server -machine q35
+CFLAGS += -march=skylake-avx512
+endif
+else ifeq ($(ARCH),i686)
+QEMU_ARCH := i386
+KERNEL_ARCH := x86
+KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/arch/x86/boot/bzImage
+ifeq ($(subst x86_64,i686,$(HOST_ARCH)),$(ARCH))
+QEMU_MACHINE := -cpu host -machine q35,accel=kvm
+else
+QEMU_MACHINE := -cpu coreduo -machine q35
+CFLAGS += -march=prescott
+endif
+else ifeq ($(ARCH),mips64)
+QEMU_ARCH := mips64
+KERNEL_ARCH := mips
+KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/vmlinux
+ifeq ($(HOST_ARCH),$(ARCH))
+QEMU_MACHINE := -cpu host -machine malta,accel=kvm
+CFLAGS += -EB
+else
+QEMU_MACHINE := -cpu MIPS64R2-generic -machine malta -smp 1
+CFLAGS += -march=mips64r2 -EB
+endif
+else ifeq ($(ARCH),mips64el)
+QEMU_ARCH := mips64el
+KERNEL_ARCH := mips
+KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/vmlinux
+ifeq ($(HOST_ARCH),$(ARCH))
+QEMU_MACHINE := -cpu host -machine malta,accel=kvm
+CFLAGS += -EL
+else
+QEMU_MACHINE := -cpu MIPS64R2-generic -machine malta -smp 1
+CFLAGS += -march=mips64r2 -EL
+endif
+else ifeq ($(ARCH),mips)
+QEMU_ARCH := mips
+KERNEL_ARCH := mips
+KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/vmlinux
+ifeq ($(HOST_ARCH),$(ARCH))
+QEMU_MACHINE := -cpu host -machine malta,accel=kvm
+CFLAGS += -EB
+else
+QEMU_MACHINE := -cpu 24Kf -machine malta -smp 1
+CFLAGS += -march=mips32r2 -EB
+endif
+else ifeq ($(ARCH),mipsel)
+QEMU_ARCH := mipsel
+KERNEL_ARCH := mips
+KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/vmlinux
+ifeq ($(HOST_ARCH),$(ARCH))
+QEMU_MACHINE := -cpu host -machine malta,accel=kvm
+CFLAGS += -EL
+else
+QEMU_MACHINE := -cpu 24Kf -machine malta -smp 1
+CFLAGS += -march=mips32r2 -EL
+endif
+else ifeq ($(ARCH),powerpc64le)
+QEMU_ARCH := ppc64
+KERNEL_ARCH := powerpc
+KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/vmlinux
+ifeq ($(HOST_ARCH),$(ARCH))
+QEMU_MACHINE := -cpu host,accel=kvm -machine pseries
+else
+QEMU_MACHINE := -machine pseries
+endif
+CFLAGS += -mcpu=powerpc64le -mlong-double-64
+else ifeq ($(ARCH),powerpc)
+QEMU_ARCH := ppc
+KERNEL_ARCH := powerpc
+KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/arch/powerpc/boot/uImage
+ifeq ($(HOST_ARCH),$(ARCH))
+QEMU_MACHINE := -cpu host,accel=kvm -machine ppce500
+else
+QEMU_MACHINE := -machine ppce500
+endif
+CFLAGS += -mcpu=powerpc -mlong-double-64 -msecure-plt
+else ifeq ($(ARCH),m68k)
+QEMU_ARCH := m68k
+KERNEL_ARCH := m68k
+KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/vmlinux
+KERNEL_CMDLINE := $(shell sed -n 's/CONFIG_CMDLINE=\(.*\)/\1/p' arch/m68k.config)
+ifeq ($(HOST_ARCH),$(ARCH))
+QEMU_MACHINE := -cpu host,accel=kvm -machine q800 -smp 1 -append $(KERNEL_CMDLINE)
+else
+QEMU_MACHINE := -machine q800 -smp 1 -append $(KERNEL_CMDLINE)
+endif
+else
+$(error I only build: x86_64, i686, arm, armeb, aarch64, aarch64_be, mips, mipsel, mips64, mips64el, powerpc64le, powerpc, m68k)
+endif
+
+REAL_CC := $(CBUILD)-gcc
+MUSL_CC := $(BUILD_PATH)/musl-gcc
+export CC := $(MUSL_CC)
+USERSPACE_DEPS := $(MUSL_CC) $(BUILD_PATH)/include/.installed $(BUILD_PATH)/include/linux/.installed
+
+build: $(KERNEL_BZIMAGE)
+qemu: $(KERNEL_BZIMAGE)
+ rm -f $(BUILD_PATH)/result
+ timeout --foreground 20m qemu-system-$(QEMU_ARCH) \
+ -nodefaults \
+ -nographic \
+ -smp $(NR_CPUS) \
+ $(QEMU_MACHINE) \
+ -m $$(grep -q CONFIG_DEBUG_KMEMLEAK=y $(KERNEL_BUILD_PATH)/.config && echo 1G || echo 256M) \
+ -serial stdio \
+ -serial file:$(BUILD_PATH)/result \
+ -no-reboot \
+ -monitor none \
+ -kernel $<
+ grep -Fq success $(BUILD_PATH)/result
+
+$(BUILD_PATH)/init-cpio-spec.txt:
+ mkdir -p $(BUILD_PATH)
+ echo "file /init $(BUILD_PATH)/init 755 0 0" > $@
+ echo "file /init.sh $(PWD)/../netns.sh 755 0 0" >> $@
+ echo "dir /dev 755 0 0" >> $@
+ echo "nod /dev/console 644 0 0 c 5 1" >> $@
+ echo "dir /bin 755 0 0" >> $@
+ echo "file /bin/iperf3 $(IPERF_PATH)/src/iperf3 755 0 0" >> $@
+ echo "file /bin/wg $(WIREGUARD_TOOLS_PATH)/src/wg 755 0 0" >> $@
+ echo "file /bin/bash $(BASH_PATH)/bash 755 0 0" >> $@
+ echo "file /bin/ip $(IPROUTE2_PATH)/ip/ip 755 0 0" >> $@
+ echo "file /bin/ss $(IPROUTE2_PATH)/misc/ss 755 0 0" >> $@
+ echo "file /bin/ping $(IPUTILS_PATH)/ping 755 0 0" >> $@
+ echo "file /bin/ncat $(NMAP_PATH)/ncat/ncat 755 0 0" >> $@
+ echo "file /bin/xtables-legacy-multi $(IPTABLES_PATH)/iptables/xtables-legacy-multi 755 0 0" >> $@
+ echo "slink /bin/iptables xtables-legacy-multi 777 0 0" >> $@
+ echo "slink /bin/ping6 ping 777 0 0" >> $@
+ echo "dir /lib 755 0 0" >> $@
+ echo "file /lib/libc.so $(MUSL_PATH)/lib/libc.so 755 0 0" >> $@
+ echo "slink /lib/ld-linux.so.1 libc.so 777 0 0" >> $@
+
+$(KERNEL_BUILD_PATH)/.config: kernel.config arch/$(ARCH).config
+ mkdir -p $(KERNEL_BUILD_PATH)
+ cp kernel.config $(KERNEL_BUILD_PATH)/minimal.config
+ printf 'CONFIG_NR_CPUS=$(NR_CPUS)\nCONFIG_INITRAMFS_SOURCE="$(BUILD_PATH)/init-cpio-spec.txt"\n' >> $(KERNEL_BUILD_PATH)/minimal.config
+ cat arch/$(ARCH).config >> $(KERNEL_BUILD_PATH)/minimal.config
+ $(MAKE) -C $(KERNEL_PATH) O=$(KERNEL_BUILD_PATH) ARCH=$(KERNEL_ARCH) allnoconfig
+ cd $(KERNEL_BUILD_PATH) && ARCH=$(KERNEL_ARCH) $(KERNEL_PATH)/scripts/kconfig/merge_config.sh -n $(KERNEL_BUILD_PATH)/.config $(KERNEL_BUILD_PATH)/minimal.config
+ $(if $(findstring yes,$(DEBUG_KERNEL)),cp debug.config $(KERNEL_BUILD_PATH) && cd $(KERNEL_BUILD_PATH) && ARCH=$(KERNEL_ARCH) $(KERNEL_PATH)/scripts/kconfig/merge_config.sh -n $(KERNEL_BUILD_PATH)/.config debug.config,)
+
+$(KERNEL_BZIMAGE): $(KERNEL_BUILD_PATH)/.config $(BUILD_PATH)/init-cpio-spec.txt $(MUSL_PATH)/lib/libc.so $(IPERF_PATH)/src/iperf3 $(IPUTILS_PATH)/ping $(BASH_PATH)/bash $(IPROUTE2_PATH)/misc/ss $(IPROUTE2_PATH)/ip/ip $(IPTABLES_PATH)/iptables/xtables-legacy-multi $(NMAP_PATH)/ncat/ncat $(WIREGUARD_TOOLS_PATH)/src/wg $(BUILD_PATH)/init ../netns.sh $(WIREGUARD_SOURCES)
+ $(MAKE) -C $(KERNEL_PATH) O=$(KERNEL_BUILD_PATH) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(CROSS_COMPILE)
+
+$(BUILD_PATH)/include/linux/.installed: | $(KERNEL_BUILD_PATH)/.config
+ $(MAKE) -C $(KERNEL_PATH) O=$(KERNEL_BUILD_PATH) INSTALL_HDR_PATH=$(BUILD_PATH) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(CROSS_COMPILE) headers_install
+ touch $@
+
+$(MUSL_PATH)/lib/libc.so: $(MUSL_TAR)
+ mkdir -p $(BUILD_PATH)
+ flock -s $<.lock tar -C $(BUILD_PATH) -xf $<
+ cd $(MUSL_PATH) && CC=$(REAL_CC) ./configure --prefix=/ --disable-static --build=$(CBUILD)
+ $(MAKE) -C $(MUSL_PATH)
+ $(STRIP) -s $@
+
+$(BUILD_PATH)/include/.installed: $(MUSL_PATH)/lib/libc.so
+ $(MAKE) -C $(MUSL_PATH) DESTDIR=$(BUILD_PATH) install-headers
+ touch $@
+
+$(MUSL_CC): $(MUSL_PATH)/lib/libc.so
+ sh $(MUSL_PATH)/tools/musl-gcc.specs.sh $(BUILD_PATH)/include $(MUSL_PATH)/lib /lib/ld-linux.so.1 > $(BUILD_PATH)/musl-gcc.specs
+ printf '#!/bin/sh\nexec "$(REAL_CC)" --specs="$(BUILD_PATH)/musl-gcc.specs" "$$@"\n' > $(BUILD_PATH)/musl-gcc
+ chmod +x $(BUILD_PATH)/musl-gcc
+
+$(IPERF_PATH)/.installed: $(IPERF_TAR)
+ mkdir -p $(BUILD_PATH)
+ flock -s $<.lock tar -C $(BUILD_PATH) -xf $<
+ sed -i '1s/^/#include <stdint.h>/' $(IPERF_PATH)/src/cjson.h $(IPERF_PATH)/src/timer.h
+ sed -i -r 's/-p?g//g' $(IPERF_PATH)/src/Makefile*
+ touch $@
+
+$(IPERF_PATH)/src/iperf3: | $(IPERF_PATH)/.installed $(USERSPACE_DEPS)
+ cd $(IPERF_PATH) && CFLAGS="$(CFLAGS) -D_GNU_SOURCE" ./configure --prefix=/ $(CROSS_COMPILE_FLAG) --enable-static --disable-shared --with-openssl=no
+ $(MAKE) -C $(IPERF_PATH)
+ $(STRIP) -s $@
+
+$(WIREGUARD_TOOLS_PATH)/.installed: $(WIREGUARD_TOOLS_TAR)
+ mkdir -p $(BUILD_PATH)
+ flock -s $<.lock tar -C $(BUILD_PATH) -xf $<
+ touch $@
+
+$(WIREGUARD_TOOLS_PATH)/src/wg: | $(WIREGUARD_TOOLS_PATH)/.installed $(USERSPACE_DEPS)
+ $(MAKE) -C $(WIREGUARD_TOOLS_PATH)/src wg
+ $(STRIP) -s $@
+
+$(BUILD_PATH)/init: init.c | $(USERSPACE_DEPS)
+ mkdir -p $(BUILD_PATH)
+ $(MUSL_CC) -o $@ $(CFLAGS) $(LDFLAGS) -std=gnu11 $<
+ $(STRIP) -s $@
+
+$(IPUTILS_PATH)/.installed: $(IPUTILS_TAR)
+ mkdir -p $(BUILD_PATH)
+ flock -s $<.lock tar -C $(BUILD_PATH) -xf $<
+ touch $@
+
+$(IPUTILS_PATH)/ping: | $(IPUTILS_PATH)/.installed $(USERSPACE_DEPS)
+ sed -i /atexit/d $(IPUTILS_PATH)/ping.c
+ cd $(IPUTILS_PATH) && $(CC) $(CFLAGS) -std=c99 -o $@ ping.c ping_common.c ping6_common.c iputils_common.c -D_GNU_SOURCE -D'IPUTILS_VERSION(f)=f' -lresolv $(LDFLAGS)
+ $(STRIP) -s $@
+
+$(BASH_PATH)/.installed: $(BASH_TAR)
+ mkdir -p $(BUILD_PATH)
+ flock -s $<.lock tar -C $(BUILD_PATH) -xf $<
+ touch $@
+
+$(BASH_PATH)/bash: | $(BASH_PATH)/.installed $(USERSPACE_DEPS)
+ cd $(BASH_PATH) && ./configure --prefix=/ $(CROSS_COMPILE_FLAG) --without-bash-malloc --disable-debugger --disable-help-builtin --disable-history --disable-multibyte --disable-progcomp --disable-readline --disable-mem-scramble
+ $(MAKE) -C $(BASH_PATH)
+ $(STRIP) -s $@
+
+$(IPROUTE2_PATH)/.installed: $(IPROUTE2_TAR)
+ mkdir -p $(BUILD_PATH)
+ flock -s $<.lock tar -C $(BUILD_PATH) -xf $<
+ printf 'CC:=$(CC)\nPKG_CONFIG:=pkg-config\nTC_CONFIG_XT:=n\nTC_CONFIG_ATM:=n\nTC_CONFIG_IPSET:=n\nIP_CONFIG_SETNS:=y\nHAVE_ELF:=n\nHAVE_MNL:=n\nHAVE_BERKELEY_DB:=n\nHAVE_LATEX:=n\nHAVE_PDFLATEX:=n\nCFLAGS+=-DHAVE_SETNS\n' > $(IPROUTE2_PATH)/config.mk
+ printf 'lib: snapshot\n\t$$(MAKE) -C lib\nip/ip: lib\n\t$$(MAKE) -C ip ip\nmisc/ss: lib\n\t$$(MAKE) -C misc ss\n' >> $(IPROUTE2_PATH)/Makefile
+ touch $@
+
+$(IPROUTE2_PATH)/ip/ip: | $(IPROUTE2_PATH)/.installed $(USERSPACE_DEPS)
+ $(MAKE) -C $(IPROUTE2_PATH) PREFIX=/ ip/ip
+ $(STRIP) -s $@
+
+$(IPROUTE2_PATH)/misc/ss: | $(IPROUTE2_PATH)/.installed $(USERSPACE_DEPS)
+ $(MAKE) -C $(IPROUTE2_PATH) PREFIX=/ misc/ss
+ $(STRIP) -s $@
+
+$(IPTABLES_PATH)/.installed: $(IPTABLES_TAR)
+ mkdir -p $(BUILD_PATH)
+ flock -s $<.lock tar -C $(BUILD_PATH) -xf $<
+ sed -i -e "/nfnetlink=[01]/s:=[01]:=0:" -e "/nfconntrack=[01]/s:=[01]:=0:" $(IPTABLES_PATH)/configure
+ touch $@
+
+$(IPTABLES_PATH)/iptables/xtables-legacy-multi: | $(IPTABLES_PATH)/.installed $(USERSPACE_DEPS)
+ cd $(IPTABLES_PATH) && ./configure --prefix=/ $(CROSS_COMPILE_FLAG) --enable-static --disable-shared --disable-nftables --disable-bpf-compiler --disable-nfsynproxy --disable-libipq --disable-connlabel --with-kernel=$(BUILD_PATH)/include
+ $(MAKE) -C $(IPTABLES_PATH)
+ $(STRIP) -s $@
+
+$(NMAP_PATH)/.installed: $(NMAP_TAR)
+ mkdir -p $(BUILD_PATH)
+ flock -s $<.lock tar -C $(BUILD_PATH) -xf $<
+ touch $@
+
+$(NMAP_PATH)/ncat/ncat: | $(NMAP_PATH)/.installed $(USERSPACE_DEPS)
+ cd $(NMAP_PATH) && ./configure --prefix=/ $(CROSS_COMPILE_FLAG) --enable-static --disable-shared --without-ndiff --without-zenmap --without-nping --with-libpcap=included --with-libpcre=included --with-libdnet=included --without-liblua --with-liblinear=included --without-nmap-update --without-openssl --with-pcap=linux --without-libssh
+ $(MAKE) -C $(NMAP_PATH)/libpcap
+ $(MAKE) -C $(NMAP_PATH)/ncat
+ $(STRIP) -s $@
+
+clean:
+ rm -rf $(BUILD_PATH)
+
+distclean: clean
+ rm -rf $(DISTFILES_PATH)
+
+menuconfig: $(KERNEL_BUILD_PATH)/.config
+ $(MAKE) -C $(KERNEL_PATH) O=$(KERNEL_BUILD_PATH) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(CROSS_COMPILE) menuconfig
+
+.PHONY: qemu build clean distclean menuconfig
+.DELETE_ON_ERROR:
diff --git a/tools/testing/selftests/wireguard/qemu/arch/aarch64.config b/tools/testing/selftests/wireguard/qemu/arch/aarch64.config
new file mode 100644
index 0000000..3d063bb
--- /dev/null
+++ b/tools/testing/selftests/wireguard/qemu/arch/aarch64.config
@@ -0,0 +1,5 @@
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE="console=ttyAMA0 wg.success=ttyAMA1"
+CONFIG_FRAME_WARN=1280
diff --git a/tools/testing/selftests/wireguard/qemu/arch/aarch64_be.config b/tools/testing/selftests/wireguard/qemu/arch/aarch64_be.config
new file mode 100644
index 0000000..dbdc7e4
--- /dev/null
+++ b/tools/testing/selftests/wireguard/qemu/arch/aarch64_be.config
@@ -0,0 +1,6 @@
+CONFIG_CPU_BIG_ENDIAN=y
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE="console=ttyAMA0 wg.success=ttyAMA1"
+CONFIG_FRAME_WARN=1280
diff --git a/tools/testing/selftests/wireguard/qemu/arch/arm.config b/tools/testing/selftests/wireguard/qemu/arch/arm.config
new file mode 100644
index 0000000..148f499
--- /dev/null
+++ b/tools/testing/selftests/wireguard/qemu/arch/arm.config
@@ -0,0 +1,9 @@
+CONFIG_MMU=y
+CONFIG_ARCH_MULTI_V7=y
+CONFIG_ARCH_VIRT=y
+CONFIG_THUMB2_KERNEL=n
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE="console=ttyAMA0 wg.success=ttyAMA1"
+CONFIG_FRAME_WARN=1024
diff --git a/tools/testing/selftests/wireguard/qemu/arch/armeb.config b/tools/testing/selftests/wireguard/qemu/arch/armeb.config
new file mode 100644
index 0000000..bd76b07
--- /dev/null
+++ b/tools/testing/selftests/wireguard/qemu/arch/armeb.config
@@ -0,0 +1,10 @@
+CONFIG_MMU=y
+CONFIG_ARCH_MULTI_V7=y
+CONFIG_ARCH_VIRT=y
+CONFIG_THUMB2_KERNEL=n
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE="console=ttyAMA0 wg.success=ttyAMA1"
+CONFIG_CPU_BIG_ENDIAN=y
+CONFIG_FRAME_WARN=1024
diff --git a/tools/testing/selftests/wireguard/qemu/arch/i686.config b/tools/testing/selftests/wireguard/qemu/arch/i686.config
new file mode 100644
index 0000000..a85025d
--- /dev/null
+++ b/tools/testing/selftests/wireguard/qemu/arch/i686.config
@@ -0,0 +1,5 @@
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE="console=ttyS0 wg.success=ttyS1"
+CONFIG_FRAME_WARN=1024
diff --git a/tools/testing/selftests/wireguard/qemu/arch/m68k.config b/tools/testing/selftests/wireguard/qemu/arch/m68k.config
new file mode 100644
index 0000000..62a15bd
--- /dev/null
+++ b/tools/testing/selftests/wireguard/qemu/arch/m68k.config
@@ -0,0 +1,9 @@
+CONFIG_MMU=y
+CONFIG_M68KCLASSIC=y
+CONFIG_M68040=y
+CONFIG_MAC=y
+CONFIG_SERIAL_PMACZILOG=y
+CONFIG_SERIAL_PMACZILOG_TTYS=y
+CONFIG_SERIAL_PMACZILOG_CONSOLE=y
+CONFIG_CMDLINE="console=ttyS0 wg.success=ttyS1"
+CONFIG_FRAME_WARN=1024
diff --git a/tools/testing/selftests/wireguard/qemu/arch/mips.config b/tools/testing/selftests/wireguard/qemu/arch/mips.config
new file mode 100644
index 0000000..df71d6b
--- /dev/null
+++ b/tools/testing/selftests/wireguard/qemu/arch/mips.config
@@ -0,0 +1,11 @@
+CONFIG_CPU_MIPS32_R2=y
+CONFIG_MIPS_MALTA=y
+CONFIG_MIPS_CPS=y
+CONFIG_MIPS_FP_SUPPORT=y
+CONFIG_POWER_RESET=y
+CONFIG_POWER_RESET_SYSCON=y
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE="console=ttyS0 wg.success=ttyS1"
+CONFIG_FRAME_WARN=1024
diff --git a/tools/testing/selftests/wireguard/qemu/arch/mips64.config b/tools/testing/selftests/wireguard/qemu/arch/mips64.config
new file mode 100644
index 0000000..90c783f
--- /dev/null
+++ b/tools/testing/selftests/wireguard/qemu/arch/mips64.config
@@ -0,0 +1,14 @@
+CONFIG_64BIT=y
+CONFIG_CPU_MIPS64_R2=y
+CONFIG_MIPS32_N32=y
+CONFIG_CPU_HAS_MSA=y
+CONFIG_MIPS_MALTA=y
+CONFIG_MIPS_CPS=y
+CONFIG_MIPS_FP_SUPPORT=y
+CONFIG_POWER_RESET=y
+CONFIG_POWER_RESET_SYSCON=y
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE="console=ttyS0 wg.success=ttyS1"
+CONFIG_FRAME_WARN=1280
diff --git a/tools/testing/selftests/wireguard/qemu/arch/mips64el.config b/tools/testing/selftests/wireguard/qemu/arch/mips64el.config
new file mode 100644
index 0000000..435b0b4
--- /dev/null
+++ b/tools/testing/selftests/wireguard/qemu/arch/mips64el.config
@@ -0,0 +1,15 @@
+CONFIG_64BIT=y
+CONFIG_CPU_MIPS64_R2=y
+CONFIG_MIPS32_N32=y
+CONFIG_CPU_HAS_MSA=y
+CONFIG_MIPS_MALTA=y
+CONFIG_CPU_LITTLE_ENDIAN=y
+CONFIG_MIPS_CPS=y
+CONFIG_MIPS_FP_SUPPORT=y
+CONFIG_POWER_RESET=y
+CONFIG_POWER_RESET_SYSCON=y
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE="console=ttyS0 wg.success=ttyS1"
+CONFIG_FRAME_WARN=1280
diff --git a/tools/testing/selftests/wireguard/qemu/arch/mipsel.config b/tools/testing/selftests/wireguard/qemu/arch/mipsel.config
new file mode 100644
index 0000000..62bb50c
--- /dev/null
+++ b/tools/testing/selftests/wireguard/qemu/arch/mipsel.config
@@ -0,0 +1,12 @@
+CONFIG_CPU_MIPS32_R2=y
+CONFIG_MIPS_MALTA=y
+CONFIG_CPU_LITTLE_ENDIAN=y
+CONFIG_MIPS_CPS=y
+CONFIG_MIPS_FP_SUPPORT=y
+CONFIG_POWER_RESET=y
+CONFIG_POWER_RESET_SYSCON=y
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE="console=ttyS0 wg.success=ttyS1"
+CONFIG_FRAME_WARN=1024
diff --git a/tools/testing/selftests/wireguard/qemu/arch/powerpc.config b/tools/testing/selftests/wireguard/qemu/arch/powerpc.config
new file mode 100644
index 0000000..5795709
--- /dev/null
+++ b/tools/testing/selftests/wireguard/qemu/arch/powerpc.config
@@ -0,0 +1,10 @@
+CONFIG_PPC_QEMU_E500=y
+CONFIG_FSL_SOC_BOOKE=y
+CONFIG_PPC_85xx=y
+CONFIG_PHYS_64BIT=y
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_MATH_EMULATION=y
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE="console=ttyS0 wg.success=ttyS1"
+CONFIG_FRAME_WARN=1024
diff --git a/tools/testing/selftests/wireguard/qemu/arch/powerpc64le.config b/tools/testing/selftests/wireguard/qemu/arch/powerpc64le.config
new file mode 100644
index 0000000..f52f1e2
--- /dev/null
+++ b/tools/testing/selftests/wireguard/qemu/arch/powerpc64le.config
@@ -0,0 +1,13 @@
+CONFIG_PPC64=y
+CONFIG_PPC_PSERIES=y
+CONFIG_ALTIVEC=y
+CONFIG_VSX=y
+CONFIG_PPC_OF_BOOT_TRAMPOLINE=y
+CONFIG_PPC_RADIX_MMU=y
+CONFIG_HVC_CONSOLE=y
+CONFIG_CPU_LITTLE_ENDIAN=y
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE="console=hvc0 wg.success=hvc1"
+CONFIG_SECTION_MISMATCH_WARN_ONLY=y
+CONFIG_FRAME_WARN=1280
+CONFIG_THREAD_SHIFT=14
diff --git a/tools/testing/selftests/wireguard/qemu/arch/x86_64.config b/tools/testing/selftests/wireguard/qemu/arch/x86_64.config
new file mode 100644
index 0000000..00a1ef4
--- /dev/null
+++ b/tools/testing/selftests/wireguard/qemu/arch/x86_64.config
@@ -0,0 +1,5 @@
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE="console=ttyS0 wg.success=ttyS1"
+CONFIG_FRAME_WARN=1280
diff --git a/tools/testing/selftests/wireguard/qemu/debug.config b/tools/testing/selftests/wireguard/qemu/debug.config
new file mode 100644
index 0000000..b9c7270
--- /dev/null
+++ b/tools/testing/selftests/wireguard/qemu/debug.config
@@ -0,0 +1,67 @@
+CONFIG_LOCALVERSION="-debug"
+CONFIG_ENABLE_WARN_DEPRECATED=y
+CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_FRAME_POINTER=y
+CONFIG_STACK_VALIDATION=y
+CONFIG_DEBUG_KERNEL=y
+CONFIG_DEBUG_INFO=y
+CONFIG_DEBUG_INFO_DWARF4=y
+CONFIG_PAGE_EXTENSION=y
+CONFIG_PAGE_POISONING=y
+CONFIG_DEBUG_OBJECTS=y
+CONFIG_DEBUG_OBJECTS_FREE=y
+CONFIG_DEBUG_OBJECTS_TIMERS=y
+CONFIG_DEBUG_OBJECTS_WORK=y
+CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
+CONFIG_DEBUG_OBJECTS_PERCPU_COUNTER=y
+CONFIG_DEBUG_OBJECTS_ENABLE_DEFAULT=1
+CONFIG_SLUB_DEBUG_ON=y
+CONFIG_DEBUG_VM=y
+CONFIG_DEBUG_MEMORY_INIT=y
+CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
+CONFIG_DEBUG_STACKOVERFLOW=y
+CONFIG_HAVE_ARCH_KMEMCHECK=y
+CONFIG_HAVE_ARCH_KASAN=y
+CONFIG_KASAN=y
+CONFIG_KASAN_INLINE=y
+CONFIG_UBSAN=y
+CONFIG_UBSAN_SANITIZE_ALL=y
+CONFIG_UBSAN_NO_ALIGNMENT=y
+CONFIG_UBSAN_NULL=y
+CONFIG_DEBUG_KMEMLEAK=y
+CONFIG_DEBUG_KMEMLEAK_EARLY_LOG_SIZE=8192
+CONFIG_DEBUG_STACK_USAGE=y
+CONFIG_DEBUG_SHIRQ=y
+CONFIG_WQ_WATCHDOG=y
+CONFIG_SCHED_DEBUG=y
+CONFIG_SCHED_INFO=y
+CONFIG_SCHEDSTATS=y
+CONFIG_SCHED_STACK_END_CHECK=y
+CONFIG_DEBUG_TIMEKEEPING=y
+CONFIG_TIMER_STATS=y
+CONFIG_DEBUG_PREEMPT=y
+CONFIG_DEBUG_RT_MUTEXES=y
+CONFIG_DEBUG_SPINLOCK=y
+CONFIG_DEBUG_MUTEXES=y
+CONFIG_DEBUG_LOCK_ALLOC=y
+CONFIG_PROVE_LOCKING=y
+CONFIG_LOCKDEP=y
+CONFIG_DEBUG_ATOMIC_SLEEP=y
+CONFIG_TRACE_IRQFLAGS=y
+CONFIG_DEBUG_BUGVERBOSE=y
+CONFIG_DEBUG_LIST=y
+CONFIG_DEBUG_PI_LIST=y
+CONFIG_PROVE_RCU=y
+CONFIG_SPARSE_RCU_POINTER=y
+CONFIG_RCU_CPU_STALL_TIMEOUT=21
+CONFIG_RCU_TRACE=y
+CONFIG_RCU_EQS_DEBUG=y
+CONFIG_USER_STACKTRACE_SUPPORT=y
+CONFIG_DEBUG_SG=y
+CONFIG_DEBUG_NOTIFIERS=y
+CONFIG_DOUBLEFAULT=y
+CONFIG_X86_DEBUG_FPU=y
+CONFIG_DEBUG_SECTION_MISMATCH=y
+CONFIG_DEBUG_PAGEALLOC=y
+CONFIG_DEBUG_PAGEALLOC_ENABLE_DEFAULT=y
+CONFIG_DEBUG_WW_MUTEX_SLOWPATH=y
diff --git a/tools/testing/selftests/wireguard/qemu/init.c b/tools/testing/selftests/wireguard/qemu/init.c
new file mode 100644
index 0000000..c969812
--- /dev/null
+++ b/tools/testing/selftests/wireguard/qemu/init.c
@@ -0,0 +1,284 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#define _GNU_SOURCE
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <fcntl.h>
+#include <sys/wait.h>
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/io.h>
+#include <sys/ioctl.h>
+#include <sys/reboot.h>
+#include <sys/utsname.h>
+#include <sys/sendfile.h>
+#include <sys/sysmacros.h>
+#include <linux/random.h>
+#include <linux/version.h>
+
+__attribute__((noreturn)) static void poweroff(void)
+{
+ fflush(stdout);
+ fflush(stderr);
+ reboot(RB_AUTOBOOT);
+ sleep(30);
+ fprintf(stderr, "\x1b[37m\x1b[41m\x1b[1mFailed to power off!!!\x1b[0m\n");
+ exit(1);
+}
+
+static void panic(const char *what)
+{
+ fprintf(stderr, "\n\n\x1b[37m\x1b[41m\x1b[1mSOMETHING WENT HORRIBLY WRONG\x1b[0m\n\n \x1b[31m\x1b[1m%s: %s\x1b[0m\n\n\x1b[37m\x1b[44m\x1b[1mPower off...\x1b[0m\n\n", what, strerror(errno));
+ poweroff();
+}
+
+#define pretty_message(msg) puts("\x1b[32m\x1b[1m" msg "\x1b[0m")
+
+static void print_banner(void)
+{
+ struct utsname utsname;
+ int len;
+
+ if (uname(&utsname) < 0)
+ panic("uname");
+
+ len = strlen(" WireGuard Test Suite on ") + strlen(utsname.sysname) + strlen(utsname.release) + strlen(utsname.machine);
+ printf("\x1b[45m\x1b[33m\x1b[1m%*.s\x1b[0m\n\x1b[45m\x1b[33m\x1b[1m WireGuard Test Suite on %s %s %s \x1b[0m\n\x1b[45m\x1b[33m\x1b[1m%*.s\x1b[0m\n\n", len, "", utsname.sysname, utsname.release, utsname.machine, len, "");
+}
+
+static void seed_rng(void)
+{
+ int fd;
+ struct {
+ int entropy_count;
+ int buffer_size;
+ unsigned char buffer[256];
+ } entropy = {
+ .entropy_count = sizeof(entropy.buffer) * 8,
+ .buffer_size = sizeof(entropy.buffer),
+ .buffer = "Adding real entropy is not actually important for these tests. Don't try this at home, kids!"
+ };
+
+ if (mknod("/dev/urandom", S_IFCHR | 0644, makedev(1, 9)))
+ panic("mknod(/dev/urandom)");
+ fd = open("/dev/urandom", O_WRONLY);
+ if (fd < 0)
+ panic("open(urandom)");
+ for (int i = 0; i < 256; ++i) {
+ if (ioctl(fd, RNDADDENTROPY, &entropy) < 0)
+ panic("ioctl(urandom)");
+ }
+ close(fd);
+}
+
+static void mount_filesystems(void)
+{
+ pretty_message("[+] Mounting filesystems...");
+ mkdir("/dev", 0755);
+ mkdir("/proc", 0755);
+ mkdir("/sys", 0755);
+ mkdir("/tmp", 0755);
+ mkdir("/run", 0755);
+ mkdir("/var", 0755);
+ if (mount("none", "/dev", "devtmpfs", 0, NULL))
+ panic("devtmpfs mount");
+ if (mount("none", "/proc", "proc", 0, NULL))
+ panic("procfs mount");
+ if (mount("none", "/sys", "sysfs", 0, NULL))
+ panic("sysfs mount");
+ if (mount("none", "/tmp", "tmpfs", 0, NULL))
+ panic("tmpfs mount");
+ if (mount("none", "/run", "tmpfs", 0, NULL))
+ panic("tmpfs mount");
+ if (mount("none", "/sys/kernel/debug", "debugfs", 0, NULL))
+ ; /* Not a problem if it fails.*/
+ if (symlink("/run", "/var/run"))
+ panic("run symlink");
+ if (symlink("/proc/self/fd", "/dev/fd"))
+ panic("fd symlink");
+}
+
+static void enable_logging(void)
+{
+ int fd;
+ pretty_message("[+] Enabling logging...");
+ fd = open("/proc/sys/kernel/printk", O_WRONLY);
+ if (fd >= 0) {
+ if (write(fd, "9\n", 2) != 2)
+ panic("write(printk)");
+ close(fd);
+ }
+ fd = open("/proc/sys/debug/exception-trace", O_WRONLY);
+ if (fd >= 0) {
+ if (write(fd, "1\n", 2) != 2)
+ panic("write(exception-trace)");
+ close(fd);
+ }
+ fd = open("/proc/sys/kernel/panic_on_warn", O_WRONLY);
+ if (fd >= 0) {
+ if (write(fd, "1\n", 2) != 2)
+ panic("write(panic_on_warn)");
+ close(fd);
+ }
+}
+
+static void kmod_selftests(void)
+{
+ FILE *file;
+ char line[2048], *start, *pass;
+ bool success = true;
+ pretty_message("[+] Module self-tests:");
+ file = fopen("/proc/kmsg", "r");
+ if (!file)
+ panic("fopen(kmsg)");
+ if (fcntl(fileno(file), F_SETFL, O_NONBLOCK) < 0)
+ panic("fcntl(kmsg, nonblock)");
+ while (fgets(line, sizeof(line), file)) {
+ start = strstr(line, "wireguard: ");
+ if (!start)
+ continue;
+ start += 11;
+ *strchrnul(start, '\n') = '\0';
+ if (strstr(start, "www.wireguard.com"))
+ break;
+ pass = strstr(start, ": pass");
+ if (!pass || pass[6] != '\0') {
+ success = false;
+ printf(" \x1b[31m* %s\x1b[0m\n", start);
+ } else
+ printf(" \x1b[32m* %s\x1b[0m\n", start);
+ }
+ fclose(file);
+ if (!success) {
+ puts("\x1b[31m\x1b[1m[-] Tests failed! \u2639\x1b[0m");
+ poweroff();
+ }
+}
+
+static void launch_tests(void)
+{
+ char cmdline[4096], *success_dev;
+ int status, fd;
+ pid_t pid;
+
+ pretty_message("[+] Launching tests...");
+ pid = fork();
+ if (pid == -1)
+ panic("fork");
+ else if (pid == 0) {
+ execl("/init.sh", "init", NULL);
+ panic("exec");
+ }
+ if (waitpid(pid, &status, 0) < 0)
+ panic("waitpid");
+ if (WIFEXITED(status) && WEXITSTATUS(status) == 0) {
+ pretty_message("[+] Tests successful! :-)");
+ fd = open("/proc/cmdline", O_RDONLY);
+ if (fd < 0)
+ panic("open(/proc/cmdline)");
+ if (read(fd, cmdline, sizeof(cmdline) - 1) <= 0)
+ panic("read(/proc/cmdline)");
+ cmdline[sizeof(cmdline) - 1] = '\0';
+ for (success_dev = strtok(cmdline, " \n"); success_dev; success_dev = strtok(NULL, " \n")) {
+ if (strncmp(success_dev, "wg.success=", 11))
+ continue;
+ memcpy(success_dev + 11 - 5, "/dev/", 5);
+ success_dev += 11 - 5;
+ break;
+ }
+ if (!success_dev || !strlen(success_dev))
+ panic("Unable to find success device");
+
+ fd = open(success_dev, O_WRONLY);
+ if (fd < 0)
+ panic("open(success_dev)");
+ if (write(fd, "success\n", 8) != 8)
+ panic("write(success_dev)");
+ close(fd);
+ } else {
+ const char *why = "unknown cause";
+ int what = -1;
+
+ if (WIFEXITED(status)) {
+ why = "exit code";
+ what = WEXITSTATUS(status);
+ } else if (WIFSIGNALED(status)) {
+ why = "signal";
+ what = WTERMSIG(status);
+ }
+ printf("\x1b[31m\x1b[1m[-] Tests failed with %s %d! \u2639\x1b[0m\n", why, what);
+ }
+}
+
+static void ensure_console(void)
+{
+ for (unsigned int i = 0; i < 1000; ++i) {
+ int fd = open("/dev/console", O_RDWR);
+ if (fd < 0) {
+ usleep(50000);
+ continue;
+ }
+ dup2(fd, 0);
+ dup2(fd, 1);
+ dup2(fd, 2);
+ close(fd);
+ if (write(1, "\0\0\0\0\n", 5) == 5)
+ return;
+ }
+ panic("Unable to open console device");
+}
+
+static void clear_leaks(void)
+{
+ int fd;
+
+ fd = open("/sys/kernel/debug/kmemleak", O_WRONLY);
+ if (fd < 0)
+ return;
+ pretty_message("[+] Starting memory leak detection...");
+ write(fd, "clear\n", 5);
+ close(fd);
+}
+
+static void check_leaks(void)
+{
+ int fd;
+
+ fd = open("/sys/kernel/debug/kmemleak", O_WRONLY);
+ if (fd < 0)
+ return;
+ pretty_message("[+] Scanning for memory leaks...");
+ sleep(2); /* Wait for any grace periods. */
+ write(fd, "scan\n", 5);
+ close(fd);
+
+ fd = open("/sys/kernel/debug/kmemleak", O_RDONLY);
+ if (fd < 0)
+ return;
+ if (sendfile(1, fd, NULL, 0x7ffff000) > 0)
+ panic("Memory leaks encountered");
+ close(fd);
+}
+
+int main(int argc, char *argv[])
+{
+ seed_rng();
+ ensure_console();
+ print_banner();
+ mount_filesystems();
+ kmod_selftests();
+ enable_logging();
+ clear_leaks();
+ launch_tests();
+ check_leaks();
+ poweroff();
+ return 1;
+}
diff --git a/tools/testing/selftests/wireguard/qemu/kernel.config b/tools/testing/selftests/wireguard/qemu/kernel.config
new file mode 100644
index 0000000..af9323a
--- /dev/null
+++ b/tools/testing/selftests/wireguard/qemu/kernel.config
@@ -0,0 +1,88 @@
+CONFIG_LOCALVERSION=""
+CONFIG_NET=y
+CONFIG_NETDEVICES=y
+CONFIG_NET_CORE=y
+CONFIG_NET_IPIP=y
+CONFIG_DUMMY=y
+CONFIG_VETH=y
+CONFIG_MULTIUSER=y
+CONFIG_NAMESPACES=y
+CONFIG_NET_NS=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+CONFIG_IPV6=y
+CONFIG_NETFILTER=y
+CONFIG_NETFILTER_ADVANCED=y
+CONFIG_NF_CONNTRACK=y
+CONFIG_NF_NAT=y
+CONFIG_NETFILTER_XTABLES=y
+CONFIG_NETFILTER_XT_NAT=y
+CONFIG_NETFILTER_XT_MATCH_LENGTH=y
+CONFIG_NF_CONNTRACK_IPV4=y
+CONFIG_NF_NAT_IPV4=y
+CONFIG_IP_NF_IPTABLES=y
+CONFIG_IP_NF_FILTER=y
+CONFIG_IP_NF_NAT=y
+CONFIG_IP_ADVANCED_ROUTER=y
+CONFIG_IP_MULTIPLE_TABLES=y
+CONFIG_IPV6_MULTIPLE_TABLES=y
+CONFIG_TTY=y
+CONFIG_BINFMT_ELF=y
+CONFIG_BINFMT_SCRIPT=y
+CONFIG_VDSO=y
+CONFIG_VIRTUALIZATION=y
+CONFIG_HYPERVISOR_GUEST=y
+CONFIG_PARAVIRT=y
+CONFIG_KVM_GUEST=y
+CONFIG_PARAVIRT_SPINLOCKS=y
+CONFIG_PRINTK=y
+CONFIG_KALLSYMS=y
+CONFIG_BUG=y
+CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
+CONFIG_JUMP_LABEL=y
+CONFIG_EMBEDDED=n
+CONFIG_BASE_FULL=y
+CONFIG_FUTEX=y
+CONFIG_SHMEM=y
+CONFIG_SLUB=y
+CONFIG_SPARSEMEM_VMEMMAP=y
+CONFIG_SMP=y
+CONFIG_SCHED_SMT=y
+CONFIG_SCHED_MC=y
+CONFIG_NUMA=y
+CONFIG_PREEMPT=y
+CONFIG_NO_HZ=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NO_HZ_FULL=n
+CONFIG_HZ_PERIODIC=n
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_COMPAT_32BIT_TIME=y
+CONFIG_ARCH_RANDOM=y
+CONFIG_FILE_LOCKING=y
+CONFIG_POSIX_TIMERS=y
+CONFIG_DEVTMPFS=y
+CONFIG_PROC_FS=y
+CONFIG_PROC_SYSCTL=y
+CONFIG_SYSFS=y
+CONFIG_TMPFS=y
+CONFIG_CONSOLE_LOGLEVEL_DEFAULT=15
+CONFIG_PRINTK_TIME=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_LEGACY_VSYSCALL_NONE=y
+CONFIG_KERNEL_GZIP=y
+CONFIG_PANIC_ON_OOPS=y
+CONFIG_BUG_ON_DATA_CORRUPTION=y
+CONFIG_LOCKUP_DETECTOR=y
+CONFIG_SOFTLOCKUP_DETECTOR=y
+CONFIG_HARDLOCKUP_DETECTOR=y
+CONFIG_WQ_WATCHDOG=y
+CONFIG_DETECT_HUNG_TASK=y
+CONFIG_BOOTPARAM_HARDLOCKUP_PANIC=y
+CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y
+CONFIG_BOOTPARAM_HUNG_TASK_PANIC=y
+CONFIG_PANIC_TIMEOUT=-1
+CONFIG_STACKTRACE=y
+CONFIG_EARLY_PRINTK=y
+CONFIG_GDB_SCRIPTS=y
+CONFIG_WIREGUARD=y
+CONFIG_WIREGUARD_DEBUG=y
